diff --git a/target/linux/generic-2.6/config-2.6.25 b/target/linux/generic-2.6/config-2.6.25 index aa25b9666b..2178e96261 100644 --- a/target/linux/generic-2.6/config-2.6.25 +++ b/target/linux/generic-2.6/config-2.6.25 @@ -1016,11 +1016,13 @@ CONFIG_NORTEL_HERMES=m # CONFIG_NTFS_FS is not set # CONFIG_NTFS_RW is not set # CONFIG_OCF_BENCH is not set +# CONFIG_OCF_EP80579 is not set # CONFIG_OCF_IXP4XX is not set # CONFIG_OCF_HIFN is not set # CONFIG_OCF_HIFNHIPP is not set # CONFIG_OCF_SAFE is not set # CONFIG_OCF_TALITOS is not set +# CONFIG_OCF_OCF is not set # CONFIG_OCF_OCFNULL is not set # CONFIG_OCFS2_FS is not set # CONFIG_OSF_PARTITION is not set diff --git a/target/linux/generic-2.6/config-2.6.26 b/target/linux/generic-2.6/config-2.6.26 index 72ad1dfd66..99598f4ed8 100644 --- a/target/linux/generic-2.6/config-2.6.26 +++ b/target/linux/generic-2.6/config-2.6.26 @@ -1045,11 +1045,13 @@ CONFIG_NORTEL_HERMES=m # CONFIG_NTFS_FS is not set # CONFIG_NTFS_RW is not set # CONFIG_OCF_BENCH is not set +# CONFIG_OCF_EP80579 is not set # CONFIG_OCF_IXP4XX is not set # CONFIG_OCF_HIFN is not set # CONFIG_OCF_HIFNHIPP is not set # CONFIG_OCF_SAFE is not set # CONFIG_OCF_TALITOS is not set +# CONFIG_OCF_OCF is not set # CONFIG_OCF_OCFNULL is not set # CONFIG_OCFS2_FS is not set # CONFIG_OSF_PARTITION is not set diff --git a/target/linux/generic-2.6/config-2.6.27 b/target/linux/generic-2.6/config-2.6.27 index 5a62a2fe3a..3cfd3ef2ea 100644 --- a/target/linux/generic-2.6/config-2.6.27 +++ b/target/linux/generic-2.6/config-2.6.27 @@ -1094,6 +1094,7 @@ CONFIG_NORTEL_HERMES=m # CONFIG_NTFS_RW is not set # CONFIG_OCFS2_FS is not set # CONFIG_OCF_BENCH is not set +# CONFIG_OCF_EP80579 is not set # CONFIG_OCF_HIFN is not set # CONFIG_OCF_HIFNHIPP is not set # CONFIG_OCF_IXP4XX is not set diff --git a/target/linux/generic-2.6/patches-2.6.25/970-ocf_kbuild_integration.patch b/target/linux/generic-2.6/patches-2.6.25/970-ocf_kbuild_integration.patch new file mode 100644 index 0000000000..a00b72c11b --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.25/970-ocf_kbuild_integration.patch @@ -0,0 +1,25 @@ +--- a/crypto/Kconfig ++++ b/crypto/Kconfig +@@ -590,6 +590,8 @@ config CRYPTO_LZO + help + This is the LZO algorithm. + ++source "crypto/ocf/Kconfig" ++ + source "drivers/crypto/Kconfig" + + endif # if CRYPTO +--- a/crypto/Makefile ++++ b/crypto/Makefile +@@ -66,6 +66,11 @@ obj-$(CONFIG_CRYPTO_LZO) += lzo.o + obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o + + # ++# OCF ++# ++obj-$(CONFIG_OCF_OCF) += ocf/ ++ ++# + # generic algorithms and the async_tx api + # + obj-$(CONFIG_XOR_BLOCKS) += xor.o diff --git a/target/linux/generic-2.6/patches-2.6.25/950-ocf-linux-26-20080704.patch b/target/linux/generic-2.6/patches-2.6.25/971-ocf_20080917.patch similarity index 80% rename from target/linux/generic-2.6/patches-2.6.25/950-ocf-linux-26-20080704.patch rename to target/linux/generic-2.6/patches-2.6.25/971-ocf_20080917.patch index 7912a4e8dd..f3702a173b 100644 --- a/target/linux/generic-2.6/patches-2.6.25/950-ocf-linux-26-20080704.patch +++ b/target/linux/generic-2.6/patches-2.6.25/971-ocf_20080917.patch @@ -1,23 +1,3 @@ ---- a/crypto/Kconfig -+++ b/crypto/Kconfig -@@ -593,3 +593,6 @@ config CRYPTO_LZO - source "drivers/crypto/Kconfig" - - endif # if CRYPTO -+ -+source "crypto/ocf/Kconfig" -+ ---- a/crypto/Makefile -+++ b/crypto/Makefile -@@ -65,6 +65,8 @@ obj-$(CONFIG_CRYPTO_LZO) += lzo.o - - obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o - -+obj-$(CONFIG_OCF_OCF) += ocf/ -+ - # - # generic algorithms and the async_tx api - # --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -129,6 +129,9 @@ @@ -60,9 +40,9 @@ + */ +void random_input_words(__u32 *buf, size_t wordcount, int ent_count) +{ -+ add_entropy_words(&input_pool, buf, wordcount); ++ mix_pool_bytes(&input_pool, buf, wordcount*4); + -+ credit_entropy_store(&input_pool, ent_count); ++ credit_entropy_bits(&input_pool, ent_count); + + DEBUG_ENT("crediting %d bits => %d\n", + ent_count, input_pool.entropy_count); @@ -211,7 +191,7 @@ + --- /dev/null +++ b/crypto/ocf/Makefile -@@ -0,0 +1,120 @@ +@@ -0,0 +1,121 @@ +# for SGlinux builds +-include $(ROOTDIR)/modules/.config + @@ -256,6 +236,7 @@ +$(_obj)-$(CONFIG_OCF_IXP4XX) += ixp4xx$(_slash) +$(_obj)-$(CONFIG_OCF_TALITOS) += talitos$(_slash) +$(_obj)-$(CONFIG_OCF_PASEMI) += pasemi$(_slash) ++$(_obj)-$(CONFIG_OCF_EP80579) += ep80579$(_slash) +$(_obj)-$(CONFIG_OCF_OCFNULL) += ocfnull$(_slash) + +ocf-objs := $(OCF_OBJS) @@ -292,7 +273,7 @@ + diff -Nau /dev/null $$t | sed 's?^+++ \./?+++ linux/crypto/ocf/?'; \ + done > $$patch; \ + cat patches/linux-2.4.35-ocf.patch $$patch > $$patch24; \ -+ cat patches/linux-2.6.25-ocf.patch $$patch > $$patch26 ++ cat patches/linux-2.6.26-ocf.patch $$patch > $$patch26 + +.PHONY: tarball +tarball: @@ -470,6 +451,116 @@ +endif + --- /dev/null ++++ b/crypto/ocf/ep80579/Makefile +@@ -0,0 +1,107 @@ ++######################################################################### ++# ++# Targets supported ++# all - builds everything and installs ++# install - identical to all ++# depend - build dependencies ++# clean - clears derived objects except the .depend files ++# distclean- clears all derived objects and the .depend file ++# ++# @par ++# This file is provided under a dual BSD/GPLv2 license. When using or ++# redistributing this file, you may do so under either license. ++# ++# GPL LICENSE SUMMARY ++# ++# Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++# ++# This program is free software; you can redistribute it and/or modify ++# it under the terms of version 2 of the GNU General Public License as ++# published by the Free Software Foundation. ++# ++# This program is distributed in the hope that it will be useful, but ++# WITHOUT ANY WARRANTY; without even the implied warranty of ++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++# General Public License for more details. ++# ++# You should have received a copy of the GNU General Public License ++# along with this program; if not, write to the Free Software ++# Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++# The full GNU General Public License is included in this distribution ++# in the file called LICENSE.GPL. ++# ++# Contact Information: ++# Intel Corporation ++# ++# BSD LICENSE ++# ++# Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++# All rights reserved. ++# ++# Redistribution and use in source and binary forms, with or without ++# modification, are permitted provided that the following conditions ++# are met: ++# ++# * Redistributions of source code must retain the above copyright ++# notice, this list of conditions and the following disclaimer. ++# * Redistributions in binary form must reproduce the above copyright ++# notice, this list of conditions and the following disclaimer in ++# the documentation and/or other materials provided with the ++# distribution. ++# * Neither the name of Intel Corporation nor the names of its ++# contributors may be used to endorse or promote products derived ++# from this software without specific prior written permission. ++# ++# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++# ++# ++# version: Security.L.1.0.130 ++############################################################################ ++ ++ ++####################Common variables and definitions######################## ++ ++# Ensure The ENV_DIR environmental var is defined. ++ifndef ICP_ENV_DIR ++$(error ICP_ENV_DIR is undefined. Please set the path to your environment makefile \ ++ "-> setenv ICP_ENV_DIR ") ++endif ++ ++#Add your project environment Makefile ++include $(ICP_ENV_DIR)/environment.mk ++ ++#include the makefile with all the default and common Make variable definitions ++include $(ICP_BUILDSYSTEM_PATH)/build_files/common.mk ++ ++#Add the name for the executable, Library or Module output definitions ++OUTPUT_NAME= icp_ocf ++ ++# List of Source Files to be compiled ++SOURCES= icp_common.c icp_sym.c icp_asym.c ++ ++#common includes between all supported OSes ++INCLUDES= -I $(ICP_API_DIR) -I$(ICP_LAC_API) \ ++-I$(ICP_OCF_SRC_DIR) ++ ++# The location of the os level makefile needs to be changed. ++include $(ICP_ENV_DIR)/$(ICP_OS)_$(ICP_OS_LEVEL).mk ++ ++# On the line directly below list the outputs you wish to build for, ++# e.g "lib_static lib_shared exe module" as show below ++install: module ++ ++###################Include rules makefiles######################## ++include $(ICP_BUILDSYSTEM_PATH)/build_files/rules.mk ++###################End of Rules inclusion######################### ++ ++ +--- /dev/null +++ b/crypto/ocf/pasemi/Makefile @@ -0,0 +1,12 @@ +# for SGlinux builds @@ -486,7 +577,7 @@ + --- /dev/null +++ b/crypto/ocf/Config.in -@@ -0,0 +1,32 @@ +@@ -0,0 +1,34 @@ +############################################################################# + +mainmenu_option next_comment @@ -512,6 +603,8 @@ + CONFIG_OCF_TALITOS $CONFIG_OCF_OCF +dep_tristate ' pasemi (HW crypto engine)' \ + CONFIG_OCF_PASEMI $CONFIG_OCF_OCF ++dep_tristate ' ep80579 (HW crypto engine)' \ ++ CONFIG_OCF_EP80579 $CONFIG_OCF_OCF +dep_tristate ' ocfnull (does no crypto)' \ + CONFIG_OCF_OCFNULL $CONFIG_OCF_OCF +dep_tristate ' ocf-bench (HW crypto in-kernel benchmark)' \ @@ -521,7 +614,7 @@ +############################################################################# --- /dev/null +++ b/crypto/ocf/Kconfig -@@ -0,0 +1,95 @@ +@@ -0,0 +1,101 @@ +menu "OCF Configuration" + +config OCF_OCF @@ -597,10 +690,16 @@ + OCF driver for Freescale's security engine (SEC/talitos). + +config OCF_PASEMI -+ tristate "pasemi (HW crypto engine)" -+ depends on OCF_OCF && PPC_PASEMI -+ help -+ OCF driver for for PA Semi PWRficient DMA Engine ++ tristate "pasemi (HW crypto engine)" ++ depends on OCF_OCF && PPC_PASEMI ++ help ++ OCF driver for the PA Semi PWRficient DMA Engine ++ ++config OCF_EP80579 ++ tristate "ep80579 (HW crypto engine)" ++ depends on OCF_OCF ++ help ++ OCF driver for the Intel EP80579 Integrated Processor Product Line. + +config OCF_OCFNULL + tristate "ocfnull (fake crypto engine)" @@ -619,7 +718,7 @@ +endmenu --- /dev/null +++ b/crypto/ocf/README -@@ -0,0 +1,166 @@ +@@ -0,0 +1,167 @@ +README - ocf-linux-20071215 +--------------------------- + @@ -656,12 +755,13 @@ + cd .. + patch -p1 < crypto/ocf/patches/linux-2.4.35-ocf.patch + -+ for 2.6.23 (and later) ++ for 2.6.23 (and later), find the kernel patch specific (or nearest) ++ to your kernel versions and then: + -+ cd linux-2.6.23/crypto ++ cd linux-2.6.NN/crypto + tar xvzf ocf-linux.tar.gz + cd .. -+ patch -p1 < crypto/ocf/patches/linux-2.6.23-ocf.patch ++ patch -p1 < crypto/ocf/patches/linux-2.6.NN-ocf.patch + + It should be easy to take this patch and apply it to other more + recent versions of the kernels. The same patches should also work @@ -686,7 +786,7 @@ + + /usr/include/crypto/cryptodev.h + -+ * patch your openssl-0.9.8g code with the openssl-0.9.8g.patch. ++ * patch your openssl-0.9.8i code with the openssl-0.9.8i.patch. + (NOTE: there is no longer a need to patch ssh). The patch is against: + openssl-0_9_8e + @@ -694,7 +794,7 @@ + to older OCF releases. This patch is unlikely to work on older + openssl versions. + -+ openssl-0.9.8g.patch ++ openssl-0.9.8i.patch + - enables --with-cryptodev for non BSD systems + - adds -cpu option to openssl speed for calculating CPU load + under linux @@ -17769,7 +17869,7 @@ +extern int rndtest_buf(unsigned char *buf); --- /dev/null +++ b/crypto/ocf/ocf-compat.h -@@ -0,0 +1,268 @@ +@@ -0,0 +1,270 @@ +#ifndef _BSD_COMPAT_H_ +#define _BSD_COMPAT_H_ 1 +/****************************************************************************/ @@ -17895,7 +17995,9 @@ + +#endif + -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) ++#include ++#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) +#define files_fdtable(files) (files) +#endif + @@ -18039,6 +18141,4029 @@ +/****************************************************************************/ +#endif /* _BSD_COMPAT_H_ */ --- /dev/null ++++ b/crypto/ocf/ep80579/icp_asym.c +@@ -0,0 +1,1375 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++#include "icp_ocf.h" ++ ++/*The following define values (containing the word 'INDEX') are used to find ++the index of each input buffer of the crypto_kop struct (see OCF cryptodev.h). ++These values were found through analysis of the OCF OpenSSL patch. If the ++calling program uses different input buffer positions, these defines will have ++to be changed.*/ ++ ++/*DIFFIE HELLMAN buffer index values*/ ++#define ICP_DH_KRP_PARAM_PRIME_INDEX (0) ++#define ICP_DH_KRP_PARAM_BASE_INDEX (1) ++#define ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX (2) ++#define ICP_DH_KRP_PARAM_RESULT_INDEX (3) ++ ++/*MOD EXP buffer index values*/ ++#define ICP_MOD_EXP_KRP_PARAM_BASE_INDEX (0) ++#define ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX (1) ++#define ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX (2) ++#define ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX (3) ++ ++#define SINGLE_BYTE_VALUE (4) ++ ++/*MOD EXP CRT buffer index values*/ ++#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX (0) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX (1) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX (2) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX (3) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX (4) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX (5) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX (6) ++ ++/*DSA sign buffer index values*/ ++#define ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX (0) ++#define ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX (1) ++#define ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX (2) ++#define ICP_DSA_SIGN_KRP_PARAM_G_INDEX (3) ++#define ICP_DSA_SIGN_KRP_PARAM_X_INDEX (4) ++#define ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX (5) ++#define ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX (6) ++ ++/*DSA verify buffer index values*/ ++#define ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX (0) ++#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX (1) ++#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX (2) ++#define ICP_DSA_VERIFY_KRP_PARAM_G_INDEX (3) ++#define ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX (4) ++#define ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX (5) ++#define ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX (6) ++ ++/*DSA sign prime Q vs random number K size check values*/ ++#define DONT_RUN_LESS_THAN_CHECK (0) ++#define FAIL_A_IS_GREATER_THAN_B (1) ++#define FAIL_A_IS_EQUAL_TO_B (1) ++#define SUCCESS_A_IS_LESS_THAN_B (0) ++#define DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS (500) ++ ++/* We need to set a cryptokp success value just in case it is set or allocated ++ and not set to zero outside of this module */ ++#define CRYPTO_OP_SUCCESS (0) ++ ++static int icp_ocfDrvDHComputeKey(struct cryptkop *krp); ++ ++static int icp_ocfDrvModExp(struct cryptkop *krp); ++ ++static int icp_ocfDrvModExpCRT(struct cryptkop *krp); ++ ++static int ++icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck); ++ ++static int icp_ocfDrvDsaSign(struct cryptkop *krp); ++ ++static int icp_ocfDrvDsaVerify(struct cryptkop *krp); ++ ++static void ++icp_ocfDrvDhP1CallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pLocalOctetStringPV); ++ ++static void ++icp_ocfDrvModExpCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pResult); ++ ++static void ++icp_ocfDrvModExpCRTCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pOutputData); ++ ++static void ++icp_ocfDrvDsaVerifyCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaBoolean verifyStatus); ++ ++static void ++icp_ocfDrvDsaRSSignCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, ++ CpaBoolean protocolStatus, ++ CpaFlatBuffer * pR, CpaFlatBuffer * pS); ++ ++/* Name : icp_ocfDrvPkeProcess ++ * ++ * Description : This function will choose which PKE process to follow ++ * based on the input arguments ++ */ ++int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ ++ if (NULL == krp) { ++ DPRINTK("%s(): Invalid input parameters, cryptkop = %p\n", ++ __FUNCTION__, krp); ++ return EINVAL; ++ } ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ switch (krp->krp_op) { ++ case CRK_DH_COMPUTE_KEY: ++ DPRINTK("%s() doing DH_COMPUTE_KEY\n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDHComputeKey(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDHComputeKey failed " ++ "(%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_MOD_EXP: ++ DPRINTK("%s() doing MOD_EXP \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvModExp(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvModExp failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_MOD_EXP_CRT: ++ DPRINTK("%s() doing MOD_EXP_CRT \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvModExpCRT(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvModExpCRT " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_DSA_SIGN: ++ DPRINTK("%s() doing DSA_SIGN \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDsaSign(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDsaSign " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_DSA_VERIFY: ++ DPRINTK("%s() doing DSA_VERIFY \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDsaVerify(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDsaVerify " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ default: ++ EPRINTK("%s(): Asymettric function not " ++ "supported (%d).\n", __FUNCTION__, krp->krp_op); ++ krp->krp_status = EOPNOTSUPP; ++ return EOPNOTSUPP; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvSwapBytes ++ * ++ * Description : This function is used to swap the byte order of a buffer. ++ * It has been seen that in general we are passed little endian byte order ++ * buffers, but LAC only accepts big endian byte order buffers. ++ */ ++static void inline ++icp_ocfDrvSwapBytes(u_int8_t * num, u_int32_t buff_len_bytes) ++{ ++ ++ int i; ++ u_int8_t *end_ptr; ++ u_int8_t hold_val; ++ ++ end_ptr = num + (buff_len_bytes - 1); ++ buff_len_bytes = buff_len_bytes >> 1; ++ for (i = 0; i < buff_len_bytes; i++) { ++ hold_val = *num; ++ *num = *end_ptr; ++ num++; ++ *end_ptr = hold_val; ++ end_ptr--; ++ } ++} ++ ++/* Name : icp_ocfDrvDHComputeKey ++ * ++ * Description : This function will map Diffie Hellman calls from OCF ++ * to the LAC API. OCF uses this function for Diffie Hellman Phase1 and ++ * Phase2. LAC has a separate Diffie Hellman Phase2 call, however both phases ++ * break down to a modular exponentiation. ++ */ ++static int icp_ocfDrvDHComputeKey(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ void *callbackTag = NULL; ++ CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL; ++ CpaFlatBuffer *pLocalOctetStringPV = NULL; ++ uint32_t dh_prime_len_bytes = 0, dh_prime_len_bits = 0; ++ ++ /* Input checks - check prime is a multiple of 8 bits to allow for ++ allocation later */ ++ dh_prime_len_bits = ++ (krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_nbits); ++ ++ /* LAC can reject prime lengths based on prime key sizes, we just ++ need to make sure we can allocate space for the base and ++ exponent buffers correctly */ ++ if ((dh_prime_len_bits % NUM_BITS_IN_BYTE) != 0) { ++ APRINTK("%s(): Warning Prime number buffer size is not a " ++ "multiple of 8 bits\n", __FUNCTION__); ++ } ++ ++ /* Result storage space should be the same size as the prime as this ++ value can take up the same amount of storage space */ ++ if (dh_prime_len_bits != ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits) { ++ DPRINTK("%s(): Return Buffer must be the same size " ++ "as the Prime buffer\n", __FUNCTION__); ++ krp->krp_status = EINVAL; ++ return EINVAL; ++ } ++ /* Switch to size in bytes */ ++ BITS_TO_BYTES(dh_prime_len_bytes, dh_prime_len_bits); ++ ++ callbackTag = krp; ++ ++ pPhase1OpData = kmem_cache_zalloc(drvDH_zone, GFP_KERNEL); ++ if (NULL == pPhase1OpData) { ++ APRINTK("%s():Failed to get memory for key gen data\n", ++ __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pLocalOctetStringPV = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pLocalOctetStringPV) { ++ APRINTK("%s():Failed to get memory for pLocalOctetStringPV\n", ++ __FUNCTION__); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ pPhase1OpData->primeP.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_p; ++ ++ pPhase1OpData->primeP.dataLenInBytes = dh_prime_len_bytes; ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->primeP.pData, dh_prime_len_bytes); ++ ++ pPhase1OpData->baseG.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pPhase1OpData->baseG.dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->baseG.pData, ++ pPhase1OpData->baseG.dataLenInBytes); ++ ++ pPhase1OpData->privateValueX.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pPhase1OpData->privateValueX.dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->privateValueX.pData, ++ pPhase1OpData->privateValueX.dataLenInBytes); ++ ++ /* Output parameters */ ++ pLocalOctetStringPV->pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pLocalOctetStringPV->dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits); ++ ++ lacStatus = cpaCyDhKeyGenPhase1(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDhP1CallBack, ++ callbackTag, pPhase1OpData, ++ pLocalOctetStringPV); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DH Phase 1 Key Gen failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvModExp ++ * ++ * Description : This function will map ordinary Modular Exponentiation calls ++ * from OCF to the LAC API. ++ * ++ */ ++static int icp_ocfDrvModExp(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ void *callbackTag = NULL; ++ CpaCyLnModExpOpData *pModExpOpData = NULL; ++ CpaFlatBuffer *pResult = NULL; ++ ++ if ((krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits % ++ NUM_BITS_IN_BYTE) != 0) { ++ DPRINTK("%s(): Warning - modulus buffer size (%d) is not a " ++ "multiple of 8 bits\n", __FUNCTION__, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX]. ++ crp_nbits); ++ } ++ ++ /* Result storage space should be the same size as the prime as this ++ value can take up the same amount of storage space */ ++ if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits > ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_nbits) { ++ APRINTK("%s(): Return Buffer size must be the same or" ++ " greater than the Modulus buffer\n", __FUNCTION__); ++ krp->krp_status = EINVAL; ++ return EINVAL; ++ } ++ ++ callbackTag = krp; ++ ++ pModExpOpData = kmem_cache_zalloc(drvLnModExp_zone, GFP_KERNEL); ++ if (NULL == pModExpOpData) { ++ APRINTK("%s():Failed to get memory for key gen data\n", ++ __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pResult = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pResult) { ++ APRINTK("%s():Failed to get memory for ModExp result\n", ++ __FUNCTION__); ++ kmem_cache_free(drvLnModExp_zone, pModExpOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ pModExpOpData->modulus.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->modulus.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pModExpOpData->modulus.pData, ++ pModExpOpData->modulus.dataLenInBytes); ++ ++ /*OCF patch to Openswan Pluto regularly sends the base value as 2 ++ bits in size. In this case, it has been found it is better to ++ use the base size memory space as the input buffer (if the number ++ is in bits is less than a byte, the number of bits is the input ++ value) */ ++ if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits < ++ NUM_BITS_IN_BYTE) { ++ DPRINTK("%s : base is small (%d)\n", __FUNCTION__, krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits); ++ pModExpOpData->base.dataLenInBytes = SINGLE_BYTE_VALUE; ++ pModExpOpData->base.pData = ++ (uint8_t *) & (krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits); ++ *((uint32_t *) pModExpOpData->base.pData) = ++ htonl(*((uint32_t *) pModExpOpData->base.pData)); ++ ++ } else { ++ ++ DPRINTK("%s : base is big (%d)\n", __FUNCTION__, krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits); ++ pModExpOpData->base.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->base.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(pModExpOpData->base.pData, ++ pModExpOpData->base.dataLenInBytes); ++ } ++ ++ pModExpOpData->exponent.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->exponent.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pModExpOpData->exponent.pData, ++ pModExpOpData->exponent.dataLenInBytes); ++ /* Output parameters */ ++ pResult->pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_p, ++ BITS_TO_BYTES(pResult->dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyLnModExp(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvModExpCallBack, ++ callbackTag, pModExpOpData, pResult); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): Mod Exp Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pResult); ++ kmem_cache_free(drvLnModExp_zone, pModExpOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvModExpCRT ++ * ++ * Description : This function will map ordinary Modular Exponentiation Chinese ++ * Remainder Theorem implementaion calls from OCF to the LAC API. ++ * ++ * Note : Mod Exp CRT for this driver is accelerated through LAC RSA type 2 ++ * decrypt operation. Therefore P and Q input values must always be prime ++ * numbers. Although basic primality checks are done in LAC, it is up to the ++ * user to do any correct prime number checking before passing the inputs. ++ */ ++ ++static int icp_ocfDrvModExpCRT(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyRsaDecryptOpData *rsaDecryptOpData = NULL; ++ void *callbackTag = NULL; ++ CpaFlatBuffer *pOutputData = NULL; ++ ++ /*Parameter input checks are all done by LAC, no need to repeat ++ them here. */ ++ callbackTag = krp; ++ ++ rsaDecryptOpData = kmem_cache_zalloc(drvRSADecrypt_zone, GFP_KERNEL); ++ if (NULL == rsaDecryptOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for MOD EXP CRT Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey ++ = kmem_cache_zalloc(drvRSAPrivateKey_zone, GFP_KERNEL); ++ if (NULL == rsaDecryptOpData->pRecipientPrivateKey) { ++ APRINTK("%s():Failed to get memory for MOD EXP CRT" ++ " private key values struct\n", __FUNCTION__); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ version = CPA_CY_RSA_VERSION_TWO_PRIME; ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2; ++ ++ pOutputData = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pOutputData) { ++ APRINTK("%s():Failed to get memory" ++ " for MOD EXP CRT output data\n", __FUNCTION__); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ rsaDecryptOpData->pRecipientPrivateKey); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ version = CPA_CY_RSA_VERSION_TWO_PRIME; ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2; ++ ++ /* Link parameters */ ++ rsaDecryptOpData->inputData.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->inputData.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->inputData.pData, ++ rsaDecryptOpData->inputData.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime1P.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ prime1P.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime1P.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime1P.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime2Q.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ prime2Q.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime2Q.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime2Q.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ exponent1Dp.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.dataLenInBytes); ++ ++ /* Output Parameter */ ++ pOutputData->pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pOutputData->dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyRsaDecrypt(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvModExpCRTCallBack, ++ callbackTag, rsaDecryptOpData, pOutputData); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): Mod Exp CRT Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pOutputData); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ rsaDecryptOpData->pRecipientPrivateKey); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvCheckALessThanB ++ * ++ * Description : This function will check whether the first argument is less ++ * than the second. It is used to check whether the DSA RS sign Random K ++ * value is less than the Prime Q value (as defined in the specification) ++ * ++ */ ++static int ++icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck) ++{ ++ ++ uint8_t *MSB_K = pK->pData; ++ uint8_t *MSB_Q = pQ->pData; ++ uint32_t buffer_lengths_in_bytes = pQ->dataLenInBytes; ++ ++ if (DONT_RUN_LESS_THAN_CHECK == *doCheck) { ++ return FAIL_A_IS_GREATER_THAN_B; ++ } ++ ++/*Check MSBs ++if A == B, check next MSB ++if A > B, return A_IS_GREATER_THAN_B ++if A < B, return A_IS_LESS_THAN_B (success) ++*/ ++ while (*MSB_K == *MSB_Q) { ++ MSB_K++; ++ MSB_Q++; ++ ++ buffer_lengths_in_bytes--; ++ if (0 == buffer_lengths_in_bytes) { ++ DPRINTK("%s() Buffers have equal value!!\n", ++ __FUNCTION__); ++ return FAIL_A_IS_EQUAL_TO_B; ++ } ++ ++ } ++ ++ if (*MSB_K < *MSB_Q) { ++ return SUCCESS_A_IS_LESS_THAN_B; ++ } else { ++ return FAIL_A_IS_GREATER_THAN_B; ++ } ++ ++} ++ ++/* Name : icp_ocfDrvDsaSign ++ * ++ * Description : This function will map DSA RS Sign from OCF to the LAC API. ++ * ++ * NOTE: From looking at OCF patch to OpenSSL and even the number of input ++ * parameters, OCF expects us to generate the random seed value. This value ++ * is generated and passed to LAC, however the number is discared in the ++ * callback and not returned to the user. ++ */ ++static int icp_ocfDrvDsaSign(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyDsaRSSignOpData *dsaRsSignOpData = NULL; ++ void *callbackTag = NULL; ++ CpaCyRandGenOpData randGenOpData; ++ int primeQSizeInBytes = 0; ++ int doCheck = 0; ++ CpaFlatBuffer randData; ++ CpaBoolean protocolStatus = CPA_FALSE; ++ CpaFlatBuffer *pR = NULL; ++ CpaFlatBuffer *pS = NULL; ++ ++ callbackTag = krp; ++ ++ BITS_TO_BYTES(primeQSizeInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ if (DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES != primeQSizeInBytes) { ++ APRINTK("%s(): DSA PRIME Q size not equal to the " ++ "FIPS defined 20bytes, = %d\n", ++ __FUNCTION__, primeQSizeInBytes); ++ krp->krp_status = EDOM; ++ return EDOM; ++ } ++ ++ dsaRsSignOpData = kmem_cache_zalloc(drvDSARSSign_zone, GFP_KERNEL); ++ if (NULL == dsaRsSignOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA RS Sign Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ dsaRsSignOpData->K.pData = ++ kmem_cache_alloc(drvDSARSSignKValue_zone, GFP_ATOMIC); ++ ++ if (NULL == dsaRsSignOpData->K.pData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA RS Sign Op Random value\n", __FUNCTION__); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pR = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pR) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA signature R\n", __FUNCTION__); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pS = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pS) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA signature S\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /*link prime number parameter for ease of processing */ ++ dsaRsSignOpData->P.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->P.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->P.pData, ++ dsaRsSignOpData->P.dataLenInBytes); ++ ++ dsaRsSignOpData->Q.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->Q.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->Q.pData, ++ dsaRsSignOpData->Q.dataLenInBytes); ++ ++ /*generate random number with equal buffer size to Prime value Q, ++ but value less than Q */ ++ dsaRsSignOpData->K.dataLenInBytes = dsaRsSignOpData->Q.dataLenInBytes; ++ ++ randGenOpData.generateBits = CPA_TRUE; ++ randGenOpData.lenInBytes = dsaRsSignOpData->K.dataLenInBytes; ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer(dsaRsSignOpData->K.pData, ++ dsaRsSignOpData->K.dataLenInBytes, ++ &randData); ++ ++ doCheck = 0; ++ while (icp_ocfDrvCheckALessThanB(&(dsaRsSignOpData->K), ++ &(dsaRsSignOpData->Q), &doCheck)) { ++ ++ if (CPA_STATUS_SUCCESS ++ != cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, &randGenOpData, &randData)) { ++ APRINTK("%s(): ERROR - Failed to generate DSA RS Sign K" ++ "value\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = EAGAIN; ++ return EAGAIN; ++ } ++ ++ doCheck++; ++ if (DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS == doCheck) { ++ APRINTK("%s(): ERROR - Failed to find DSA RS Sign K " ++ "value less than Q value\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = EAGAIN; ++ return EAGAIN; ++ } ++ ++ } ++ /*Rand Data - no need to swap bytes for pK */ ++ ++ /* Link parameters */ ++ dsaRsSignOpData->G.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->G.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->G.pData, ++ dsaRsSignOpData->G.dataLenInBytes); ++ ++ dsaRsSignOpData->X.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->X.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_nbits); ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->X.pData, ++ dsaRsSignOpData->X.dataLenInBytes); ++ ++ dsaRsSignOpData->M.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->M.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->M.pData, ++ dsaRsSignOpData->M.dataLenInBytes); ++ ++ /* Output Parameters */ ++ pS->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pS->dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX]. ++ crp_nbits); ++ ++ pR->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pR->dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyDsaSignRS(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDsaRSSignCallBack, ++ callbackTag, dsaRsSignOpData, ++ &protocolStatus, pR, pS); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DSA RS Sign Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvDsaVerify ++ * ++ * Description : This function will map DSA RS Verify from OCF to the LAC API. ++ * ++ */ ++static int icp_ocfDrvDsaVerify(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyDsaVerifyOpData *dsaVerifyOpData = NULL; ++ void *callbackTag = NULL; ++ CpaBoolean verifyStatus = CPA_FALSE; ++ ++ callbackTag = krp; ++ ++ dsaVerifyOpData = kmem_cache_zalloc(drvDSAVerify_zone, GFP_KERNEL); ++ if (NULL == dsaVerifyOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA Verify Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ dsaVerifyOpData->P.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->P.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->P.pData, ++ dsaVerifyOpData->P.dataLenInBytes); ++ ++ dsaVerifyOpData->Q.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->Q.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->Q.pData, ++ dsaVerifyOpData->Q.dataLenInBytes); ++ ++ dsaVerifyOpData->G.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->G.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->G.pData, ++ dsaVerifyOpData->G.dataLenInBytes); ++ ++ dsaVerifyOpData->Y.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->Y.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->Y.pData, ++ dsaVerifyOpData->Y.dataLenInBytes); ++ ++ dsaVerifyOpData->M.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->M.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->M.pData, ++ dsaVerifyOpData->M.dataLenInBytes); ++ ++ dsaVerifyOpData->R.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->R.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->R.pData, ++ dsaVerifyOpData->R.dataLenInBytes); ++ ++ dsaVerifyOpData->S.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->S.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->S.pData, ++ dsaVerifyOpData->S.dataLenInBytes); ++ ++ lacStatus = cpaCyDsaVerify(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDsaVerifyCallBack, ++ callbackTag, dsaVerifyOpData, &verifyStatus); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DSA Verify Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ kmem_cache_free(drvDSAVerify_zone, dsaVerifyOpData); ++ krp->krp_status = ECANCELED; ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvReadRandom ++ * ++ * Description : This function will map RNG functionality calls from OCF ++ * to the LAC API. ++ */ ++int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyRandGenOpData randGenOpData; ++ CpaFlatBuffer randData; ++ ++ if (NULL == buf) { ++ APRINTK("%s(): Invalid input parameters\n", __FUNCTION__); ++ return EINVAL; ++ } ++ ++ /* maxwords here is number of integers to generate data for */ ++ randGenOpData.generateBits = CPA_TRUE; ++ ++ randGenOpData.lenInBytes = maxwords * sizeof(uint32_t); ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) buf, ++ randGenOpData.lenInBytes, &randData); ++ ++ lacStatus = cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, &randGenOpData, &randData); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_LacSymRandGen failed (%d). \n", ++ __FUNCTION__, lacStatus); ++ return RETURN_RAND_NUM_GEN_FAILED; ++ } ++ ++ return randGenOpData.lenInBytes / sizeof(uint32_t); ++} ++ ++/* Name : icp_ocfDrvDhP1Callback ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DH operation. ++ */ ++static void ++icp_ocfDrvDhP1CallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pLocalOctetStringPV) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pPhase1OpData = (CpaCyDhPhase1KeyGenOpData *) pOpData; ++ ++ if (NULL == pLocalOctetStringPV) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "pLocalOctetStringPV Data is NULL\n", __FUNCTION__); ++ memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData)); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): Diffie Hellman Phase1 Key Gen failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pLocalOctetStringPV->pData, ++ pLocalOctetStringPV->dataLenInBytes); ++ ++ icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV); ++ memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData)); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvModExpCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the Mod Exp operation. ++ */ ++static void ++icp_ocfDrvModExpCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpdata, CpaFlatBuffer * pResult) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyLnModExpOpData *pLnModExpOpData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpdata) { ++ DPRINTK("%s(): Invalid Mod Exp input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pLnModExpOpData = (CpaCyLnModExpOpData *) pOpdata; ++ ++ if (NULL == pResult) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "pResult data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData)); ++ kmem_cache_free(drvLnModExp_zone, pLnModExpOpData); ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): LAC Mod Exp Operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pResult->pData, pResult->dataLenInBytes); ++ ++ /*switch base size value back to original */ ++ if (pLnModExpOpData->base.pData == ++ (uint8_t *) & (krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits)) { ++ *((uint32_t *) pLnModExpOpData->base.pData) = ++ ntohl(*((uint32_t *) pLnModExpOpData->base.pData)); ++ } ++ icp_ocfDrvFreeFlatBuffer(pResult); ++ memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData)); ++ kmem_cache_free(drvLnModExp_zone, pLnModExpOpData); ++ ++ crypto_kdone(krp); ++ ++ return; ++ ++} ++ ++/* Name : icp_ocfDrvModExpCRTCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the Mod Exp CRT operation. ++ */ ++static void ++icp_ocfDrvModExpCRTCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pOutputData) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyRsaDecryptOpData *pDecryptData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pDecryptData = (CpaCyRsaDecryptOpData *) pOpData; ++ ++ if (NULL == pOutputData) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pOutputData is NULL\n", __FUNCTION__); ++ memset(pDecryptData->pRecipientPrivateKey, 0, ++ sizeof(CpaCyRsaPrivateKey)); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ pDecryptData->pRecipientPrivateKey); ++ memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData)); ++ kmem_cache_free(drvRSADecrypt_zone, pDecryptData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): LAC Mod Exp CRT operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pOutputData->pData, pOutputData->dataLenInBytes); ++ ++ icp_ocfDrvFreeFlatBuffer(pOutputData); ++ memset(pDecryptData->pRecipientPrivateKey, 0, ++ sizeof(CpaCyRsaPrivateKey)); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ pDecryptData->pRecipientPrivateKey); ++ memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData)); ++ kmem_cache_free(drvRSADecrypt_zone, pDecryptData); ++ ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvDsaRSSignCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DSA RS sign operation. ++ */ ++static void ++icp_ocfDrvDsaRSSignCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, ++ CpaBoolean protocolStatus, ++ CpaFlatBuffer * pR, CpaFlatBuffer * pS) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyDsaRSSignOpData *pSignData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pSignData = (CpaCyDsaRSSignOpData *) pOpData; ++ ++ if (NULL == pR) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pR sign is NULL\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (NULL == pS) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pS sign is NULL\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS != status) { ++ APRINTK("%s(): LAC DSA RS Sign operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } else { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ ++ if (CPA_TRUE != protocolStatus) { ++ DPRINTK("%s(): LAC DSA RS Sign operation failed due " ++ "to protocol error\n", __FUNCTION__); ++ krp->krp_status = EIO; ++ } ++ } ++ ++ /* Swap bytes only when the callback status is successful and ++ protocolStatus is set to true */ ++ if (CPA_STATUS_SUCCESS == status && CPA_TRUE == protocolStatus) { ++ icp_ocfDrvSwapBytes(pR->pData, pR->dataLenInBytes); ++ icp_ocfDrvSwapBytes(pS->pData, pS->dataLenInBytes); ++ } ++ ++ icp_ocfDrvFreeFlatBuffer(pR); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ memset(pSignData->K.pData, 0, pSignData->K.dataLenInBytes); ++ kmem_cache_free(drvDSARSSignKValue_zone, pSignData->K.pData); ++ memset(pSignData, 0, sizeof(CpaCyDsaRSSignOpData)); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvDsaVerifyCallback ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DSA Verify operation. ++ */ ++static void ++icp_ocfDrvDsaVerifyCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaBoolean verifyStatus) ++{ ++ ++ struct cryptkop *krp = NULL; ++ CpaCyDsaVerifyOpData *pVerData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pVerData = (CpaCyDsaVerifyOpData *) pOpData; ++ ++ if (CPA_STATUS_SUCCESS != status) { ++ APRINTK("%s(): LAC DSA Verify operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } else { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ ++ if (CPA_TRUE != verifyStatus) { ++ DPRINTK("%s(): DSA signature invalid\n", __FUNCTION__); ++ krp->krp_status = EIO; ++ } ++ } ++ ++ /* Swap bytes only when the callback status is successful and ++ verifyStatus is set to true */ ++ /*Just swapping back the key values for now. Possibly all ++ swapped buffers need to be reverted */ ++ if (CPA_STATUS_SUCCESS == status && CPA_TRUE == verifyStatus) { ++ icp_ocfDrvSwapBytes(pVerData->R.pData, ++ pVerData->R.dataLenInBytes); ++ icp_ocfDrvSwapBytes(pVerData->S.pData, ++ pVerData->S.dataLenInBytes); ++ } ++ ++ memset(pVerData, 0, sizeof(CpaCyDsaVerifyOpData)); ++ kmem_cache_free(drvDSAVerify_zone, pVerData); ++ crypto_kdone(krp); ++ ++ return; ++} +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_common.c +@@ -0,0 +1,891 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++/* ++ * An OCF module that uses Intel® QuickAssist Integrated Accelerator to do the ++ * crypto. ++ * ++ * This driver requires the ICP Access Library that is available from Intel in ++ * order to operate. ++ */ ++ ++#include "icp_ocf.h" ++ ++#define ICP_OCF_COMP_NAME "ICP_OCF" ++#define ICP_OCF_VER_MAIN (2) ++#define ICP_OCF_VER_MJR (0) ++#define ICP_OCF_VER_MNR (0) ++ ++#define MAX_DEREG_RETRIES (100) ++#define DEFAULT_DEREG_RETRIES (10) ++#define DEFAULT_DEREG_DELAY_IN_JIFFIES (10) ++ ++/* This defines the maximum number of sessions possible between OCF ++ and the OCF Tolapai Driver. If set to zero, there is no limit. */ ++#define DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT (0) ++#define NUM_SUPPORTED_CAPABILITIES (21) ++ ++/*Slabs zones*/ ++struct kmem_cache *drvSessionData_zone = NULL; ++struct kmem_cache *drvOpData_zone = NULL; ++struct kmem_cache *drvDH_zone = NULL; ++struct kmem_cache *drvLnModExp_zone = NULL; ++struct kmem_cache *drvRSADecrypt_zone = NULL; ++struct kmem_cache *drvRSAPrivateKey_zone = NULL; ++struct kmem_cache *drvDSARSSign_zone = NULL; ++struct kmem_cache *drvDSARSSignKValue_zone = NULL; ++struct kmem_cache *drvDSAVerify_zone = NULL; ++ ++/*Slab zones for flatbuffers and bufferlist*/ ++struct kmem_cache *drvFlatBuffer_zone = NULL; ++ ++static int icp_ocfDrvInit(void); ++static void icp_ocfDrvExit(void); ++static void icp_ocfDrvFreeCaches(void); ++static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg); ++ ++int32_t icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ ++/* Module parameter - gives the number of times LAC deregistration shall be ++ re-tried */ ++int num_dereg_retries = DEFAULT_DEREG_RETRIES; ++ ++/* Module parameter - gives the delay time in jiffies before a LAC session ++ shall be attempted to be deregistered again */ ++int dereg_retry_delay_in_jiffies = DEFAULT_DEREG_DELAY_IN_JIFFIES; ++ ++/* Module parameter - gives the maximum number of sessions possible between ++ OCF and the OCF Tolapai Driver. If set to zero, there is no limit.*/ ++int max_sessions = DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT; ++ ++/* This is set when the module is removed from the system, no further ++ processing can take place if this is set */ ++atomic_t icp_ocfDrvIsExiting = ATOMIC_INIT(0); ++ ++/* This is used to show how many lac sessions were not deregistered*/ ++atomic_t lac_session_failed_dereg_count = ATOMIC_INIT(0); ++ ++/* This is used to track the number of registered sessions between OCF and ++ * and the OCF Tolapai driver, when max_session is set to value other than ++ * zero. This ensures that the max_session set for the OCF and the driver ++ * is equal to the LAC registered sessions */ ++atomic_t num_ocf_to_drv_registered_sessions = ATOMIC_INIT(0); ++ ++/* Head of linked list used to store session data */ ++struct list_head icp_ocfDrvGlobalSymListHead; ++struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList; ++ ++spinlock_t icp_ocfDrvSymSessInfoListSpinlock = SPIN_LOCK_UNLOCKED; ++rwlock_t icp_kmem_cache_destroy_alloc_lock = RW_LOCK_UNLOCKED; ++ ++struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ; ++ ++struct icp_drvBuffListInfo defBuffListInfo; ++ ++static struct { ++ softc_device_decl sc_dev; ++} icpDev; ++ ++static device_method_t icp_methods = { ++ /* crypto device methods */ ++ DEVMETHOD(cryptodev_newsession, icp_ocfDrvNewSession), ++ DEVMETHOD(cryptodev_freesession, icp_ocfDrvFreeLACSession), ++ DEVMETHOD(cryptodev_process, icp_ocfDrvSymProcess), ++ DEVMETHOD(cryptodev_kprocess, icp_ocfDrvPkeProcess), ++}; ++ ++module_param(num_dereg_retries, int, S_IRUGO); ++module_param(dereg_retry_delay_in_jiffies, int, S_IRUGO); ++module_param(max_sessions, int, S_IRUGO); ++ ++MODULE_PARM_DESC(num_dereg_retries, ++ "Number of times to retry LAC Sym Session Deregistration. " ++ "Default 10, Max 100"); ++MODULE_PARM_DESC(dereg_retry_delay_in_jiffies, "Delay in jiffies " ++ "(added to a schedule() function call) before a LAC Sym " ++ "Session Dereg is retried. Default 10"); ++MODULE_PARM_DESC(max_sessions, "This sets the maximum number of sessions " ++ "between OCF and this driver. If this value is set to zero, " ++ "max session count checking is disabled. Default is zero(0)"); ++ ++/* Name : icp_ocfDrvInit ++ * ++ * Description : This function will register all the symmetric and asymmetric ++ * functionality that will be accelerated by the hardware. It will also ++ * get a unique driver ID from the OCF and initialise all slab caches ++ */ ++static int __init icp_ocfDrvInit(void) ++{ ++ int ocfStatus = 0; ++ ++ IPRINTK("=== %s ver %d.%d.%d ===\n", ICP_OCF_COMP_NAME, ++ ICP_OCF_VER_MAIN, ICP_OCF_VER_MJR, ICP_OCF_VER_MNR); ++ ++ if (MAX_DEREG_RETRIES < num_dereg_retries) { ++ EPRINTK("Session deregistration retry count set to greater " ++ "than %d", MAX_DEREG_RETRIES); ++ return -1; ++ } ++ ++ /* Initialize and Start the Cryptographic component */ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyStartInstance(CPA_INSTANCE_HANDLE_SINGLE)) { ++ EPRINTK("Failed to initialize and start the instance " ++ "of the Cryptographic component.\n"); ++ return -1; ++ } ++ ++ /* Set the default size of BufferList to allocate */ ++ memset(&defBuffListInfo, 0, sizeof(struct icp_drvBuffListInfo)); ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvBufferListMemInfo(ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS, ++ &defBuffListInfo)) { ++ EPRINTK("Failed to get bufferlist memory info.\n"); ++ return -1; ++ } ++ ++ /*Register OCF Tolapai Driver with OCF */ ++ memset(&icpDev, 0, sizeof(icpDev)); ++ softc_device_init(&icpDev, "icp", 0, icp_methods); ++ ++ icp_ocfDrvDriverId = crypto_get_driverid(softc_get_device(&icpDev), ++ CRYPTOCAP_F_HARDWARE); ++ ++ if (icp_ocfDrvDriverId < 0) { ++ EPRINTK("%s : ICP driver failed to register with OCF!\n", ++ __FUNCTION__); ++ return -ENODEV; ++ } ++ ++ /*Create all the slab caches used by the OCF Tolapai Driver */ ++ drvSessionData_zone = ++ ICP_CACHE_CREATE("ICP Session Data", struct icp_drvSessionData); ++ ICP_CACHE_NULL_CHECK(drvSessionData_zone); ++ ++ /* ++ * Allocation of the OpData includes the allocation space for meta data. ++ * The memory after the opData structure is reserved for this meta data. ++ */ ++ drvOpData_zone = ++ kmem_cache_create("ICP Op Data", sizeof(struct icp_drvOpData) + ++ defBuffListInfo.metaSize ,0, SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ++ ++ ICP_CACHE_NULL_CHECK(drvOpData_zone); ++ ++ drvDH_zone = ICP_CACHE_CREATE("ICP DH data", CpaCyDhPhase1KeyGenOpData); ++ ICP_CACHE_NULL_CHECK(drvDH_zone); ++ ++ drvLnModExp_zone = ++ ICP_CACHE_CREATE("ICP ModExp data", CpaCyLnModExpOpData); ++ ICP_CACHE_NULL_CHECK(drvLnModExp_zone); ++ ++ drvRSADecrypt_zone = ++ ICP_CACHE_CREATE("ICP RSA decrypt data", CpaCyRsaDecryptOpData); ++ ICP_CACHE_NULL_CHECK(drvRSADecrypt_zone); ++ ++ drvRSAPrivateKey_zone = ++ ICP_CACHE_CREATE("ICP RSA private key data", CpaCyRsaPrivateKey); ++ ICP_CACHE_NULL_CHECK(drvRSAPrivateKey_zone); ++ ++ drvDSARSSign_zone = ++ ICP_CACHE_CREATE("ICP DSA Sign", CpaCyDsaRSSignOpData); ++ ICP_CACHE_NULL_CHECK(drvDSARSSign_zone); ++ ++ /*too awkward to use a macro here */ ++ drvDSARSSignKValue_zone = ++ kmem_cache_create("ICP DSA Sign Rand Val", ++ DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES, 0, ++ SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ICP_CACHE_NULL_CHECK(drvDSARSSignKValue_zone); ++ ++ drvDSAVerify_zone = ++ ICP_CACHE_CREATE("ICP DSA Verify", CpaCyDsaVerifyOpData); ++ ICP_CACHE_NULL_CHECK(drvDSAVerify_zone); ++ ++ drvFlatBuffer_zone = ++ ICP_CACHE_CREATE("ICP Flat Buffers", CpaFlatBuffer); ++ ICP_CACHE_NULL_CHECK(drvFlatBuffer_zone); ++ ++ /* Register the ICP symmetric crypto support. */ ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_NULL_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_DES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_3DES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_AES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_ARC4); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512_HMAC); ++ ++ /* Register the ICP asymmetric algorithm support */ ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DH_COMPUTE_KEY); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP_CRT); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_SIGN); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_VERIFY); ++ ++ /* Register the ICP random number generator support */ ++ if (OCF_REGISTRATION_STATUS_SUCCESS == ++ crypto_rregister(icp_ocfDrvDriverId, icp_ocfDrvReadRandom, NULL)) { ++ ocfStatus++; ++ } ++ ++ if (OCF_ZERO_FUNCTIONALITY_REGISTERED == ocfStatus) { ++ DPRINTK("%s: Failed to register any device capabilities\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeCaches(); ++ icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ return -ECANCELED; ++ } ++ ++ DPRINTK("%s: Registered %d of %d device capabilities\n", ++ __FUNCTION__, ocfStatus, NUM_SUPPORTED_CAPABILITIES); ++ ++/*Session data linked list used during module exit*/ ++ INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead); ++ INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead_FreeMemList); ++ ++ icp_ocfDrvFreeLacSessionWorkQ = ++ create_singlethread_workqueue("ocfLacDeregWorkQueue"); ++ ++ return 0; ++} ++ ++/* Name : icp_ocfDrvExit ++ * ++ * Description : This function will deregister all the symmetric sessions ++ * registered with the LAC component. It will also deregister all symmetric ++ * and asymmetric functionality that can be accelerated by the hardware via OCF ++ * and random number generation if it is enabled. ++ */ ++static void icp_ocfDrvExit(void) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ struct icp_drvSessionData *sessionData = NULL; ++ struct icp_drvSessionData *tempSessionData = NULL; ++ int i, remaining_delay_time_in_jiffies = 0; ++ /* There is a possibility of a process or new session command being */ ++ /* sent before this variable is incremented. The aim of this variable */ ++ /* is to stop a loop of calls creating a deadlock situation which */ ++ /* would prevent the driver from exiting. */ ++ ++ atomic_inc(&icp_ocfDrvIsExiting); ++ ++ /*Existing sessions will be routed to another driver after these calls */ ++ crypto_unregister_all(icp_ocfDrvDriverId); ++ crypto_runregister_all(icp_ocfDrvDriverId); ++ ++ /*If any sessions are waiting to be deregistered, do that. This also ++ flushes the work queue */ ++ destroy_workqueue(icp_ocfDrvFreeLacSessionWorkQ); ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ list_for_each_entry_safe(tempSessionData, sessionData, ++ &icp_ocfDrvGlobalSymListHead, listNode) { ++ for (i = 0; i < num_dereg_retries; i++) { ++ /*No harm if bad input - LAC will handle error cases */ ++ if (ICP_SESSION_RUNNING == tempSessionData->inUse) { ++ lacStatus = ++ cpaCySymRemoveSession ++ (CPA_INSTANCE_HANDLE_SINGLE, ++ tempSessionData->sessHandle); ++ if (CPA_STATUS_SUCCESS == lacStatus) { ++ /* Succesfully deregistered */ ++ break; ++ } else if (CPA_STATUS_RETRY != lacStatus) { ++ atomic_inc ++ (&lac_session_failed_dereg_count); ++ break; ++ } ++ ++ /*schedule_timout returns the time left for completion if ++ * this task is set to TASK_INTERRUPTIBLE */ ++ remaining_delay_time_in_jiffies = ++ dereg_retry_delay_in_jiffies; ++ while (0 > remaining_delay_time_in_jiffies) { ++ remaining_delay_time_in_jiffies = ++ schedule_timeout ++ (remaining_delay_time_in_jiffies); ++ } ++ ++ DPRINTK ++ ("%s(): Retry %d to deregistrate the session\n", ++ __FUNCTION__, i); ++ } ++ } ++ ++ /*remove from current list */ ++ list_del(&(tempSessionData->listNode)); ++ /*add to free mem linked list */ ++ list_add(&(tempSessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead_FreeMemList); ++ ++ } ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ /*set back to initial values */ ++ sessionData = NULL; ++ /*still have a reference in our list! */ ++ tempSessionData = NULL; ++ /*free memory */ ++ list_for_each_entry_safe(tempSessionData, sessionData, ++ &icp_ocfDrvGlobalSymListHead_FreeMemList, ++ listNode) { ++ ++ list_del(&(tempSessionData->listNode)); ++ /* Free allocated CpaCySymSessionCtx */ ++ if (NULL != tempSessionData->sessHandle) { ++ kfree(tempSessionData->sessHandle); ++ } ++ memset(tempSessionData, 0, sizeof(struct icp_drvSessionData)); ++ kmem_cache_free(drvSessionData_zone, tempSessionData); ++ } ++ ++ if (0 != atomic_read(&lac_session_failed_dereg_count)) { ++ DPRINTK("%s(): %d LAC sessions were not deregistered " ++ "correctly. This is not a clean exit! \n", ++ __FUNCTION__, ++ atomic_read(&lac_session_failed_dereg_count)); ++ } ++ ++ icp_ocfDrvFreeCaches(); ++ icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ ++ /* Shutdown the Cryptographic component */ ++ lacStatus = cpaCyStopInstance(CPA_INSTANCE_HANDLE_SINGLE); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ DPRINTK("%s(): Failed to stop instance of the " ++ "Cryptographic component.(status == %d)\n", ++ __FUNCTION__, lacStatus); ++ } ++ ++} ++ ++/* Name : icp_ocfDrvFreeCaches ++ * ++ * Description : This function deregisters all slab caches ++ */ ++static void icp_ocfDrvFreeCaches(void) ++{ ++ if (atomic_read(&icp_ocfDrvIsExiting) != CPA_TRUE) { ++ atomic_set(&icp_ocfDrvIsExiting, 1); ++ } ++ ++ /*Sym Zones */ ++ ICP_CACHE_DESTROY(drvSessionData_zone); ++ ICP_CACHE_DESTROY(drvOpData_zone); ++ ++ /*Asym zones */ ++ ICP_CACHE_DESTROY(drvDH_zone); ++ ICP_CACHE_DESTROY(drvLnModExp_zone); ++ ICP_CACHE_DESTROY(drvRSADecrypt_zone); ++ ICP_CACHE_DESTROY(drvRSAPrivateKey_zone); ++ ICP_CACHE_DESTROY(drvDSARSSignKValue_zone); ++ ICP_CACHE_DESTROY(drvDSARSSign_zone); ++ ICP_CACHE_DESTROY(drvDSAVerify_zone); ++ ++ /*FlatBuffer and BufferList Zones */ ++ ICP_CACHE_DESTROY(drvFlatBuffer_zone); ++ ++} ++ ++/* Name : icp_ocfDrvDeregRetry ++ * ++ * Description : This function will try to farm the session deregistration ++ * off to a work queue. If it fails, nothing more can be done and it ++ * returns an error ++ */ ++ ++int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister) ++{ ++ struct icp_ocfDrvFreeLacSession *workstore = NULL; ++ ++ DPRINTK("%s(): Retry - Deregistering session (%p)\n", ++ __FUNCTION__, sessionToDeregister); ++ ++ /*make sure the session is not available to be allocated during this ++ process */ ++ atomic_inc(&lac_session_failed_dereg_count); ++ ++ /*Farm off to work queue */ ++ workstore = ++ kmalloc(sizeof(struct icp_ocfDrvFreeLacSession), GFP_ATOMIC); ++ if (NULL == workstore) { ++ DPRINTK("%s(): unable to free session - no memory available " ++ "for work queue\n", __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ workstore->sessionToDeregister = sessionToDeregister; ++ ++ INIT_WORK(&(workstore->work), icp_ocfDrvDeferedFreeLacSessionProcess, ++ workstore); ++ queue_work(icp_ocfDrvFreeLacSessionWorkQ, &(workstore->work)); ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ ++} ++ ++/* Name : icp_ocfDrvDeferedFreeLacSessionProcess ++ * ++ * Description : This function will retry (module input parameter) ++ * 'num_dereg_retries' times to deregister any symmetric session that recieves a ++ * CPA_STATUS_RETRY message from the LAC component. This function is run in ++ * Thread context because it is called from a worker thread ++ */ ++static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg) ++{ ++ struct icp_ocfDrvFreeLacSession *workstore = NULL; ++ CpaCySymSessionCtx sessionToDeregister = NULL; ++ int i = 0; ++ int remaining_delay_time_in_jiffies = 0; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ ++ workstore = (struct icp_ocfDrvFreeLacSession *)arg; ++ if (NULL == workstore) { ++ DPRINTK("%s() function called with null parameter \n", ++ __FUNCTION__); ++ return; ++ } ++ ++ sessionToDeregister = workstore->sessionToDeregister; ++ kfree(workstore); ++ ++ /*if exiting, give deregistration one more blast only */ ++ if (atomic_read(&icp_ocfDrvIsExiting) == CPA_TRUE) { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ ++ if (lacStatus != CPA_STATUS_SUCCESS) { ++ DPRINTK("%s() Failed to Dereg LAC session %p " ++ "during module exit\n", __FUNCTION__, ++ sessionToDeregister); ++ return; ++ } ++ ++ atomic_dec(&lac_session_failed_dereg_count); ++ return; ++ } ++ ++ for (i = 0; i <= num_dereg_retries; i++) { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ ++ if (lacStatus == CPA_STATUS_SUCCESS) { ++ atomic_dec(&lac_session_failed_dereg_count); ++ return; ++ } ++ if (lacStatus != CPA_STATUS_RETRY) { ++ DPRINTK("%s() Failed to deregister session - lacStatus " ++ " = %d", __FUNCTION__, lacStatus); ++ break; ++ } ++ ++ /*schedule_timout returns the time left for completion if this ++ task is set to TASK_INTERRUPTIBLE */ ++ remaining_delay_time_in_jiffies = dereg_retry_delay_in_jiffies; ++ while (0 > remaining_delay_time_in_jiffies) { ++ remaining_delay_time_in_jiffies = ++ schedule_timeout(remaining_delay_time_in_jiffies); ++ } ++ ++ } ++ ++ DPRINTK("%s(): Unable to deregister session\n", __FUNCTION__); ++ DPRINTK("%s(): Number of unavailable LAC sessions = %d\n", __FUNCTION__, ++ atomic_read(&lac_session_failed_dereg_count)); ++} ++ ++/* Name : icp_ocfDrvPtrAndLenToFlatBuffer ++ * ++ * Description : This function converts a "pointer and length" buffer ++ * structure to Fredericksburg Flat Buffer (CpaFlatBuffer) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len, ++ CpaFlatBuffer * pFlatBuffer) ++{ ++ pFlatBuffer->pData = pData; ++ pFlatBuffer->dataLenInBytes = len; ++} ++ ++/* Name : icp_ocfDrvSingleSkBuffToFlatBuffer ++ * ++ * Description : This function converts a single socket buffer (sk_buff) ++ * structure to a Fredericksburg Flat Buffer (CpaFlatBuffer) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++static inline void ++icp_ocfDrvSingleSkBuffToFlatBuffer(struct sk_buff *pSkb, ++ CpaFlatBuffer * pFlatBuffer) ++{ ++ pFlatBuffer->pData = pSkb->data; ++ pFlatBuffer->dataLenInBytes = skb_headlen(pSkb); ++} ++ ++/* Name : icp_ocfDrvSkBuffToBufferList ++ * ++ * Description : This function converts a socket buffer (sk_buff) structure to ++ * Fredericksburg Scatter/Gather (CpaBufferList) buffer format. ++ * ++ * This function assumes that the bufferlist has been allocated with the correct ++ * number of buffer arrays. ++ * ++ */ ++inline int ++icp_ocfDrvSkBuffToBufferList(struct sk_buff *pSkb, CpaBufferList * bufferList) ++{ ++ CpaFlatBuffer *curFlatBuffer = NULL; ++ char *skbuffPageAddr = NULL; ++ struct sk_buff *pCurFrag = NULL; ++ struct skb_shared_info *pShInfo = NULL; ++ uint32_t page_offset = 0, i = 0; ++ ++ DPRINTK("%s(): Entry Point\n", __FUNCTION__); ++ ++ /* ++ * In all cases, the first skb needs to be translated to FlatBuffer. ++ * Perform a buffer translation for the first skbuff ++ */ ++ curFlatBuffer = bufferList->pBuffers; ++ icp_ocfDrvSingleSkBuffToFlatBuffer(pSkb, curFlatBuffer); ++ ++ /* Set the userData to point to the original sk_buff */ ++ bufferList->pUserData = (void *)pSkb; ++ ++ /* We now know we'll have at least one element in the SGL */ ++ bufferList->numBuffers = 1; ++ ++ if (0 == skb_is_nonlinear(pSkb)) { ++ /* Is a linear buffer - therefore it's a single skbuff */ ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ ++ curFlatBuffer++; ++ pShInfo = skb_shinfo(pSkb); ++ if (pShInfo->frag_list != NULL && pShInfo->nr_frags != 0) { ++ EPRINTK("%s():" ++ "Translation for a combination of frag_list " ++ "and frags[] array not supported!\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } else if (pShInfo->frag_list != NULL) { ++ /* ++ * Non linear skbuff supported through frag_list ++ * Perform translation for each fragment (sk_buff) ++ * in the frag_list of the first sk_buff. ++ */ ++ for (pCurFrag = pShInfo->frag_list; ++ pCurFrag != NULL; pCurFrag = pCurFrag->next) { ++ icp_ocfDrvSingleSkBuffToFlatBuffer(pCurFrag, ++ curFlatBuffer); ++ curFlatBuffer++; ++ bufferList->numBuffers++; ++ } ++ } else if (pShInfo->nr_frags != 0) { ++ /* ++ * Perform translation for each fragment in frags array ++ * and add to the BufferList ++ */ ++ for (i = 0; i < pShInfo->nr_frags; i++) { ++ /* Get the page address and offset of this frag */ ++ skbuffPageAddr = (char *)pShInfo->frags[i].page; ++ page_offset = pShInfo->frags[i].page_offset; ++ ++ /* Convert a pointer and length to a flat buffer */ ++ icp_ocfDrvPtrAndLenToFlatBuffer(skbuffPageAddr + ++ page_offset, ++ pShInfo->frags[i].size, ++ curFlatBuffer); ++ curFlatBuffer++; ++ bufferList->numBuffers++; ++ } ++ } else { ++ EPRINTK("%s():" "Could not recognize skbuff fragments!\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvBufferListToSkBuff ++ * ++ * Description : This function converts a Fredericksburg Scatter/Gather ++ * (CpaBufferList) buffer format to socket buffer structure. ++ */ ++inline int ++icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, struct sk_buff **skb) ++{ ++ DPRINTK("%s(): Entry Point\n", __FUNCTION__); ++ ++ /* Retrieve the orignal skbuff */ ++ *skb = (struct sk_buff *)bufferList->pUserData; ++ if (NULL == *skb) { ++ EPRINTK("%s():" ++ "Error on converting from a BufferList. " ++ "The BufferList does not contain an sk_buff.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvPtrAndLenToBufferList ++ * ++ * Description : This function converts a "pointer and length" buffer ++ * structure to Fredericksburg Scatter/Gather Buffer (CpaBufferList) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length, ++ CpaBufferList * pBufferList) ++{ ++ pBufferList->numBuffers = 1; ++ pBufferList->pBuffers->pData = pDataIn; ++ pBufferList->pBuffers->dataLenInBytes = length; ++} ++ ++/* Name : icp_ocfDrvBufferListToPtrAndLen ++ * ++ * Description : This function converts Fredericksburg Scatter/Gather Buffer ++ * (CpaBufferList) format to a "pointer and length" buffer structure. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList, ++ void **ppDataOut, uint32_t * pLength) ++{ ++ *ppDataOut = pBufferList->pBuffers->pData; ++ *pLength = pBufferList->pBuffers->dataLenInBytes; ++} ++ ++/* Name : icp_ocfDrvBufferListMemInfo ++ * ++ * Description : This function will set the number of flat buffers in ++ * bufferlist, the size of memory to allocate for the pPrivateMetaData ++ * member of the CpaBufferList. ++ */ ++int ++icp_ocfDrvBufferListMemInfo(uint16_t numBuffers, ++ struct icp_drvBuffListInfo *buffListInfo) ++{ ++ buffListInfo->numBuffers = numBuffers; ++ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE, ++ buffListInfo->numBuffers, ++ &(buffListInfo->metaSize))) { ++ EPRINTK("%s() Failed to get buffer list meta size.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvGetSkBuffFrags ++ * ++ * Description : This function will determine the number of ++ * fragments in a socket buffer(sk_buff). ++ */ ++inline uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff * pSkb) ++{ ++ uint16_t numFrags = 0; ++ struct sk_buff *pCurFrag = NULL; ++ struct skb_shared_info *pShInfo = NULL; ++ ++ if (NULL == pSkb) ++ return 0; ++ ++ numFrags = 1; ++ if (0 == skb_is_nonlinear(pSkb)) { ++ /* Linear buffer - it's a single skbuff */ ++ return numFrags; ++ } ++ ++ pShInfo = skb_shinfo(pSkb); ++ if (NULL != pShInfo->frag_list && 0 != pShInfo->nr_frags) { ++ EPRINTK("%s(): Combination of frag_list " ++ "and frags[] array not supported!\n", __FUNCTION__); ++ return 0; ++ } else if (0 != pShInfo->nr_frags) { ++ numFrags += pShInfo->nr_frags; ++ return numFrags; ++ } else if (NULL != pShInfo->frag_list) { ++ for (pCurFrag = pShInfo->frag_list; ++ pCurFrag != NULL; pCurFrag = pCurFrag->next) { ++ numFrags++; ++ } ++ return numFrags; ++ } else { ++ return 0; ++ } ++} ++ ++/* Name : icp_ocfDrvFreeFlatBuffer ++ * ++ * Description : This function will deallocate flat buffer. ++ */ ++inline void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer) ++{ ++ if (pFlatBuffer != NULL) { ++ memset(pFlatBuffer, 0, sizeof(CpaFlatBuffer)); ++ kmem_cache_free(drvFlatBuffer_zone, pFlatBuffer); ++ } ++} ++ ++/* Name : icp_ocfDrvAllocMetaData ++ * ++ * Description : This function will allocate memory for the ++ * pPrivateMetaData member of CpaBufferList. ++ */ ++inline int ++icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, ++ const struct icp_drvOpData *pOpData) ++{ ++ Cpa32U metaSize = 0; ++ ++ if (pBufferList->numBuffers <= ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS){ ++ void *pOpDataStartAddr = (void *)pOpData; ++ ++ if (0 == defBuffListInfo.metaSize) { ++ pBufferList->pPrivateMetaData = NULL; ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ /* ++ * The meta data allocation has been included as part of the ++ * op data. It has been pre-allocated in memory just after the ++ * icp_drvOpData structure. ++ */ ++ pBufferList->pPrivateMetaData = pOpDataStartAddr + ++ sizeof(struct icp_drvOpData); ++ } else { ++ if (CPA_STATUS_SUCCESS != ++ cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE, ++ pBufferList->numBuffers, ++ &metaSize)) { ++ EPRINTK("%s() Failed to get buffer list meta size.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ if (0 == metaSize) { ++ pBufferList->pPrivateMetaData = NULL; ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ ++ pBufferList->pPrivateMetaData = kmalloc(metaSize, GFP_ATOMIC); ++ } ++ if (NULL == pBufferList->pPrivateMetaData) { ++ EPRINTK("%s() Failed to allocate pPrivateMetaData.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvFreeMetaData ++ * ++ * Description : This function will deallocate pPrivateMetaData memory. ++ */ ++inline void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList) ++{ ++ if (NULL == pBufferList->pPrivateMetaData) { ++ return; ++ } ++ ++ /* ++ * Only free the meta data if the BufferList has more than ++ * ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS number of buffers. ++ * Otherwise, the meta data shall be freed when the icp_drvOpData is ++ * freed. ++ */ ++ if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < pBufferList->numBuffers){ ++ kfree(pBufferList->pPrivateMetaData); ++ } ++} ++ ++module_init(icp_ocfDrvInit); ++module_exit(icp_ocfDrvExit); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_AUTHOR("Intel"); ++MODULE_DESCRIPTION("OCF Driver for Intel Quick Assist crypto acceleration"); +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_ocf.h +@@ -0,0 +1,363 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++/* ++ * OCF drv driver header file for the Intel ICP processor. ++ */ ++ ++#ifndef ICP_OCF_H ++#define ICP_OCF_H ++ ++#include ++#include ++#include ++ ++#include "cryptodev.h" ++#include "uio.h" ++ ++#include "cpa.h" ++#include "cpa_cy_im.h" ++#include "cpa_cy_sym.h" ++#include "cpa_cy_rand.h" ++#include "cpa_cy_dh.h" ++#include "cpa_cy_rsa.h" ++#include "cpa_cy_ln.h" ++#include "cpa_cy_common.h" ++#include "cpa_cy_dsa.h" ++ ++#define NUM_BITS_IN_BYTE (8) ++#define NUM_BITS_IN_BYTE_MINUS_ONE (NUM_BITS_IN_BYTE -1) ++#define INVALID_DRIVER_ID (-1) ++#define RETURN_RAND_NUM_GEN_FAILED (-1) ++ ++/*This is define means only one operation can be chained to another ++(resulting in one chain of two operations)*/ ++#define MAX_NUM_OF_CHAINED_OPS (1) ++/*This is the max block cipher initialisation vector*/ ++#define MAX_IV_LEN_IN_BYTES (20) ++/*This is used to check whether the OCF to this driver session limit has ++ been disabled*/ ++#define NO_OCF_TO_DRV_MAX_SESSIONS (0) ++ ++/*OCF values mapped here*/ ++#define ICP_SHA1_DIGEST_SIZE_IN_BYTES (SHA1_HASH_LEN) ++#define ICP_SHA256_DIGEST_SIZE_IN_BYTES (SHA2_256_HASH_LEN) ++#define ICP_SHA384_DIGEST_SIZE_IN_BYTES (SHA2_384_HASH_LEN) ++#define ICP_SHA512_DIGEST_SIZE_IN_BYTES (SHA2_512_HASH_LEN) ++#define ICP_MD5_DIGEST_SIZE_IN_BYTES (MD5_HASH_LEN) ++#define ARC4_COUNTER_LEN (ARC4_BLOCK_LEN) ++ ++#define OCF_REGISTRATION_STATUS_SUCCESS (0) ++#define OCF_ZERO_FUNCTIONALITY_REGISTERED (0) ++#define ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR (0) ++#define ICP_OCF_DRV_STATUS_SUCCESS (0) ++#define ICP_OCF_DRV_STATUS_FAIL (1) ++ ++/*Turn on/off debug options*/ ++#define ICP_OCF_PRINT_DEBUG_MESSAGES (0) ++#define ICP_OCF_PRINT_KERN_ALERT (1) ++#define ICP_OCF_PRINT_KERN_ERRS (1) ++ ++/*DSA Prime Q size in bytes (as defined in the standard) */ ++#define DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES (20) ++ ++/*MACRO DEFINITIONS*/ ++ ++#define BITS_TO_BYTES(bytes, bits) \ ++ bytes = (bits + NUM_BITS_IN_BYTE_MINUS_ONE) / NUM_BITS_IN_BYTE ++ ++#define ICP_CACHE_CREATE(cache_ID, cache_name) \ ++ kmem_cache_create(cache_ID, sizeof(cache_name),0, \ ++ SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ++#define ICP_CACHE_NULL_CHECK(slab_zone) \ ++{ \ ++ if(NULL == slab_zone){ \ ++ icp_ocfDrvFreeCaches(); \ ++ EPRINTK("%s() line %d: Not enough memory!\n", \ ++ __FUNCTION__, __LINE__); \ ++ return ENOMEM; \ ++ } \ ++} ++ ++#define ICP_CACHE_DESTROY(slab_zone) \ ++{ \ ++ if(NULL != slab_zone){ \ ++ kmem_cache_destroy(slab_zone); \ ++ slab_zone = NULL; \ ++ } \ ++} ++ ++#define ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(alg) \ ++{ \ ++ if(OCF_REGISTRATION_STATUS_SUCCESS == \ ++ crypto_register(icp_ocfDrvDriverId, \ ++ alg, \ ++ 0, \ ++ 0)) { \ ++ ocfStatus++; \ ++ } \ ++} ++ ++#define ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(alg) \ ++{ \ ++ if(OCF_REGISTRATION_STATUS_SUCCESS == \ ++ crypto_kregister(icp_ocfDrvDriverId, \ ++ alg, \ ++ 0)){ \ ++ ocfStatus++; \ ++ } \ ++} ++ ++#if ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++#define DPRINTK(args...) \ ++{ \ ++ printk(args); \ ++} ++ ++#else //ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++ ++#define DPRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++ ++#if ICP_OCF_PRINT_KERN_ALERT == 1 ++#define APRINTK(args...) \ ++{ \ ++ printk(KERN_ALERT args); \ ++} ++ ++#else //ICP_OCF_PRINT_KERN_ALERT == 1 ++ ++#define APRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_KERN_ALERT == 1 ++ ++#if ICP_OCF_PRINT_KERN_ERRS == 1 ++#define EPRINTK(args...) \ ++{ \ ++ printk(KERN_ERR args); \ ++} ++ ++#else //ICP_OCF_PRINT_KERN_ERRS == 1 ++ ++#define EPRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_KERN_ERRS == 1 ++ ++#define IPRINTK(args...) \ ++{ \ ++ printk(KERN_INFO args); \ ++} ++ ++/*END OF MACRO DEFINITIONS*/ ++ ++typedef enum { ++ ICP_OCF_DRV_ALG_CIPHER = 0, ++ ICP_OCF_DRV_ALG_HASH ++} icp_ocf_drv_alg_type_t; ++ ++/* These are all defined in icp_common.c */ ++extern atomic_t lac_session_failed_dereg_count; ++extern atomic_t icp_ocfDrvIsExiting; ++extern atomic_t num_ocf_to_drv_registered_sessions; ++ ++/*These are use inputs used in icp_sym.c and icp_common.c ++ They are instantiated in icp_common.c*/ ++extern int max_sessions; ++ ++extern int32_t icp_ocfDrvDriverId; ++extern struct list_head icp_ocfDrvGlobalSymListHead; ++extern struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList; ++extern struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ; ++extern spinlock_t icp_ocfDrvSymSessInfoListSpinlock; ++extern rwlock_t icp_kmem_cache_destroy_alloc_lock; ++ ++/*Slab zones for symettric functionality, instantiated in icp_common.c*/ ++extern struct kmem_cache *drvSessionData_zone; ++extern struct kmem_cache *drvOpData_zone; ++ ++/*Slabs zones for asymettric functionality, instantiated in icp_common.c*/ ++extern struct kmem_cache *drvDH_zone; ++extern struct kmem_cache *drvLnModExp_zone; ++extern struct kmem_cache *drvRSADecrypt_zone; ++extern struct kmem_cache *drvRSAPrivateKey_zone; ++extern struct kmem_cache *drvDSARSSign_zone; ++extern struct kmem_cache *drvDSARSSignKValue_zone; ++extern struct kmem_cache *drvDSAVerify_zone; ++ ++/*Slab zones for flatbuffers and bufferlist*/ ++extern struct kmem_cache *drvFlatBuffer_zone; ++ ++#define ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS (16) ++ ++struct icp_drvBuffListInfo { ++ Cpa16U numBuffers; ++ Cpa32U metaSize; ++ Cpa32U metaOffset; ++ Cpa32U buffListSize; ++}; ++extern struct icp_drvBuffListInfo defBuffListInfo; ++ ++/* ++* This struct is used to keep a reference to the relevant node in the list ++* of sessionData structs, to the buffer type required by OCF and to the OCF ++* provided crp struct that needs to be returned. All this info is needed in ++* the callback function. ++* ++* IV can sometimes be stored in non-contiguous memory (e.g. skbuff ++* linked/frag list, therefore a contiguous memory space for the IV data must be ++* created and passed to LAC ++* ++*/ ++struct icp_drvOpData { ++ CpaCySymOpData lacOpData; ++ uint32_t digestSizeInBytes; ++ struct cryptop *crp; ++ uint8_t bufferType; ++ uint8_t ivData[MAX_IV_LEN_IN_BYTES]; ++ uint16_t numBufferListArray; ++ CpaBufferList srcBuffer; ++ CpaFlatBuffer bufferListArray[ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS]; ++ CpaBoolean verifyResult; ++}; ++/*Values used to derisk chances of performs being called against ++deregistered sessions (for which the slab page has been reclaimed) ++This is not a fix - since page frames are reclaimed from a slab, one cannot ++rely on that memory not being re-used by another app.*/ ++typedef enum { ++ ICP_SESSION_INITIALISED = 0x5C5C5C, ++ ICP_SESSION_RUNNING = 0x005C00, ++ ICP_SESSION_DEREGISTERED = 0xC5C5C5 ++} usage_derisk; ++ ++/* ++This is the OCF<->OCF_DRV session object: ++ ++1.The first member is a listNode. These session objects are added to a linked ++ list in order to make it easier to remove them all at session exit time. ++2.The second member is used to give the session object state and derisk the ++ possibility of OCF batch calls executing against a deregistered session (as ++ described above). ++3.The third member is a LAC<->OCF_DRV session handle (initialised with the first ++ perform request for that session). ++4.The fourth is the LAC session context. All the parameters for this structure ++ are only known when the first perform request for this session occurs. That is ++ why the OCF Tolapai Driver only registers a new LAC session at perform time ++*/ ++struct icp_drvSessionData { ++ struct list_head listNode; ++ usage_derisk inUse; ++ CpaCySymSessionCtx sessHandle; ++ CpaCySymSessionSetupData lacSessCtx; ++}; ++ ++/* This struct is required for deferred session ++ deregistration as a work queue function can ++ only have one argument*/ ++struct icp_ocfDrvFreeLacSession { ++ CpaCySymSessionCtx sessionToDeregister; ++ struct work_struct work; ++}; ++ ++int icp_ocfDrvNewSession(device_t dev, uint32_t * sild, struct cryptoini *cri); ++ ++int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid); ++ ++int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint); ++ ++int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint); ++ ++int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords); ++ ++int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister); ++ ++int icp_ocfDrvSkBuffToBufferList(struct sk_buff *skb, ++ CpaBufferList * bufferList); ++ ++int icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, ++ struct sk_buff **skb); ++ ++void icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len, ++ CpaFlatBuffer * pFlatBuffer); ++ ++void icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length, ++ CpaBufferList * pBufferList); ++ ++void icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList, ++ void **ppDataOut, uint32_t * pLength); ++ ++int icp_ocfDrvBufferListMemInfo(uint16_t numBuffers, ++ struct icp_drvBuffListInfo *buffListInfo); ++ ++uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff *pSkb); ++ ++void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer); ++ ++int icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, ++ const struct icp_drvOpData *pOpData); ++ ++void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList); ++ ++#endif ++/* ICP_OCF_H */ +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_sym.c +@@ -0,0 +1,1382 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++/* ++ * An OCF module that uses the API for Intel® QuickAssist Technology to do the ++ * cryptography. ++ * ++ * This driver requires the ICP Access Library that is available from Intel in ++ * order to operate. ++ */ ++ ++#include "icp_ocf.h" ++ ++/*This is the call back function for all symmetric cryptographic processes. ++ Its main functionality is to free driver crypto operation structure and to ++ call back to OCF*/ ++static void ++icp_ocfDrvSymCallBack(void *callbackTag, ++ CpaStatus status, ++ const CpaCySymOp operationType, ++ void *pOpData, ++ CpaBufferList * pDstBuffer, CpaBoolean verifyResult); ++ ++/*This function is used to extract crypto processing information from the OCF ++ inputs, so as that it may be passed onto LAC*/ ++static int ++icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc); ++ ++/*This function checks whether the crp_desc argument pertains to a digest or a ++ cipher operation*/ ++static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc); ++ ++/*This function copies all the passed in session context information and stores ++ it in a LAC context structure*/ ++static int ++icp_ocfDrvAlgorithmSetup(struct cryptoini *cri, ++ CpaCySymSessionSetupData * lacSessCtx); ++ ++/*This top level function is used to find a pointer to where a digest is ++ stored/needs to be inserted. */ ++static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc); ++ ++/*This function is called when a digest pointer has to be found within a ++ SKBUFF.*/ ++static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData ++ *drvOpData, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*The following two functions are called if the SKBUFF digest pointer is not ++ positioned in the linear portion of the buffer (i.e. it is in a linked SKBUFF ++ or page fragment).*/ ++/*This function takes care of the page fragment case.*/ ++static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*This function takes care of the linked list case.*/ ++static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*This function is used to free an OCF->OCF_DRV session object*/ ++static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData); ++ ++/*max IOV buffs supported in a UIO structure*/ ++#define NUM_IOV_SUPPORTED (1) ++ ++/* Name : icp_ocfDrvSymCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the relevant symmetric operation. ++ * ++ * Notes : The callbackTag is a pointer to an icp_drvOpData. This memory ++ * object was passed to LAC for the cryptographic processing and contains all ++ * the relevant information for cleaning up buffer handles etc. so that the ++ * OCF Tolapai Driver portion of this crypto operation can be fully completed. ++ */ ++static void ++icp_ocfDrvSymCallBack(void *callbackTag, ++ CpaStatus status, ++ const CpaCySymOp operationType, ++ void *pOpData, ++ CpaBufferList * pDstBuffer, CpaBoolean verifyResult) ++{ ++ struct cryptop *crp = NULL; ++ struct icp_drvOpData *temp_drvOpData = ++ (struct icp_drvOpData *)callbackTag; ++ uint64_t *tempBasePtr = NULL; ++ uint32_t tempLen = 0; ++ ++ if (NULL == temp_drvOpData) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null userOpaque data" ++ "(status == %d).\n", __FUNCTION__, status); ++ DPRINTK("%s(): Unable to call OCF back! \n", __FUNCTION__); ++ return; ++ } ++ ++ crp = temp_drvOpData->crp; ++ crp->crp_etype = ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null Symmetric Op data" ++ "(status == %d).\n", __FUNCTION__, status); ++ crp->crp_etype = ECANCELED; ++ crypto_done(crp); ++ return; ++ } ++ ++ if (NULL == pDstBuffer) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null Dst Bufferlist data" ++ "(status == %d).\n", __FUNCTION__, status); ++ crp->crp_etype = ECANCELED; ++ crypto_done(crp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ ++ if (temp_drvOpData->bufferType == CRYPTO_F_SKBUF) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvBufferListToSkBuff(pDstBuffer, ++ (struct sk_buff **) ++ &(crp->crp_buf))) { ++ EPRINTK("%s(): BufferList to SkBuff " ++ "conversion error.\n", __FUNCTION__); ++ crp->crp_etype = EPERM; ++ } ++ } else { ++ icp_ocfDrvBufferListToPtrAndLen(pDstBuffer, ++ (void **)&tempBasePtr, ++ &tempLen); ++ crp->crp_olen = (int)tempLen; ++ } ++ ++ } else { ++ DPRINTK("%s(): The callback from the LAC component has failed" ++ "(status == %d).\n", __FUNCTION__, status); ++ ++ crp->crp_etype = ECANCELED; ++ } ++ ++ if (temp_drvOpData->numBufferListArray > ++ ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) { ++ kfree(pDstBuffer->pBuffers); ++ } ++ icp_ocfDrvFreeMetaData(pDstBuffer); ++ kmem_cache_free(drvOpData_zone, temp_drvOpData); ++ ++ /* Invoke the OCF callback function */ ++ crypto_done(crp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvNewSession ++ * ++ * Description : This function will create a new Driver<->OCF session ++ * ++ * Notes : LAC session registration happens during the first perform call. ++ * That is the first time we know all information about a given session. ++ */ ++int icp_ocfDrvNewSession(device_t dev, uint32_t * sid, struct cryptoini *cri) ++{ ++ struct icp_drvSessionData *sessionData = NULL; ++ uint32_t delete_session = 0; ++ ++ /* The SID passed in should be our driver ID. We can return the */ ++ /* local ID (LID) which is a unique identifier which we can use */ ++ /* to differentiate between the encrypt/decrypt LAC session handles */ ++ if (NULL == sid) { ++ EPRINTK("%s(): Invalid input parameters - NULL sid.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (NULL == cri) { ++ EPRINTK("%s(): Invalid input parameters - NULL cryptoini.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (icp_ocfDrvDriverId != *sid) { ++ EPRINTK("%s(): Invalid input parameters - bad driver ID\n", ++ __FUNCTION__); ++ EPRINTK("\t sid = 0x08%p \n \t cri = 0x08%p \n", sid, cri); ++ return EINVAL; ++ } ++ ++ sessionData = kmem_cache_zalloc(drvSessionData_zone, GFP_ATOMIC); ++ if (NULL == sessionData) { ++ DPRINTK("%s():No memory for Session Data\n", __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ /*put this check in the spinlock so no new sessions can be added to the ++ linked list when we are exiting */ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ delete_session++; ++ ++ } else if (NO_OCF_TO_DRV_MAX_SESSIONS != max_sessions) { ++ if (atomic_read(&num_ocf_to_drv_registered_sessions) >= ++ (max_sessions - ++ atomic_read(&lac_session_failed_dereg_count))) { ++ delete_session++; ++ } else { ++ atomic_inc(&num_ocf_to_drv_registered_sessions); ++ /* Add to session data linked list */ ++ list_add(&(sessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead); ++ } ++ ++ } else if (NO_OCF_TO_DRV_MAX_SESSIONS == max_sessions) { ++ list_add(&(sessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead); ++ } ++ ++ sessionData->inUse = ICP_SESSION_INITIALISED; ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (delete_session) { ++ DPRINTK("%s():No Session handles available\n", __FUNCTION__); ++ kmem_cache_free(drvSessionData_zone, sessionData); ++ return EPERM; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAlgorithmSetup(cri, &(sessionData->lacSessCtx))) { ++ DPRINTK("%s():algorithm not supported\n", __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EINVAL; ++ } ++ ++ if (cri->cri_next) { ++ if (cri->cri_next->cri_next != NULL) { ++ DPRINTK("%s():only two chained algorithms supported\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EPERM; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAlgorithmSetup(cri->cri_next, ++ &(sessionData->lacSessCtx))) { ++ DPRINTK("%s():second algorithm not supported\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EINVAL; ++ } ++ ++ sessionData->lacSessCtx.symOperation = ++ CPA_CY_SYM_OP_ALGORITHM_CHAINING; ++ } ++ ++ *sid = (uint32_t) sessionData; ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvAlgorithmSetup ++ * ++ * Description : This function builds the session context data from the ++ * information supplied through OCF. Algorithm chain order and whether the ++ * session is Encrypt/Decrypt can only be found out at perform time however, so ++ * the session is registered with LAC at that time. ++ */ ++static int ++icp_ocfDrvAlgorithmSetup(struct cryptoini *cri, ++ CpaCySymSessionSetupData * lacSessCtx) ++{ ++ ++ lacSessCtx->sessionPriority = CPA_CY_PRIORITY_NORMAL; ++ ++ switch (cri->cri_alg) { ++ ++ case CRYPTO_NULL_CBC: ++ DPRINTK("%s(): NULL CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_NULL; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_DES_CBC: ++ DPRINTK("%s(): DES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_DES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_3DES_CBC: ++ DPRINTK("%s(): 3DES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_3DES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_AES_CBC: ++ DPRINTK("%s(): AES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_AES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_ARC4: ++ DPRINTK("%s(): ARC4\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_ARC4; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_SHA1: ++ DPRINTK("%s(): SHA1\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA1_HMAC: ++ DPRINTK("%s(): SHA1_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_256: ++ DPRINTK("%s(): SHA256\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA256; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_256_HMAC: ++ DPRINTK("%s(): SHA256_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA256; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_384: ++ DPRINTK("%s(): SHA384\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA384; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_384_HMAC: ++ DPRINTK("%s(): SHA384_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA384; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_512: ++ DPRINTK("%s(): SHA512\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA512; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_512_HMAC: ++ DPRINTK("%s(): SHA512_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA512; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_MD5: ++ DPRINTK("%s(): MD5\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_MD5_HMAC: ++ DPRINTK("%s(): MD5_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ default: ++ DPRINTK("%s(): ALG Setup FAIL\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvFreeOCFSession ++ * ++ * Description : This function deletes all existing Session data representing ++ * the Cryptographic session established between OCF and this driver. This ++ * also includes freeing the memory allocated for the session context. The ++ * session object is also removed from the session linked list. ++ */ ++static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData) ++{ ++ ++ sessionData->inUse = ICP_SESSION_DEREGISTERED; ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ /*If the Driver is exiting, allow that process to ++ handle any deletions */ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ return; ++ } ++ ++ atomic_dec(&num_ocf_to_drv_registered_sessions); ++ ++ list_del(&(sessionData->listNode)); ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (NULL != sessionData->sessHandle) { ++ kfree(sessionData->sessHandle); ++ } ++ kmem_cache_free(drvSessionData_zone, sessionData); ++} ++ ++/* Name : icp_ocfDrvFreeLACSession ++ * ++ * Description : This attempts to deregister a LAC session. If it fails, the ++ * deregistation retry function is called. ++ */ ++int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid) ++{ ++ CpaCySymSessionCtx sessionToDeregister = NULL; ++ struct icp_drvSessionData *sessionData = NULL; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ int retval = 0; ++ ++ sessionData = (struct icp_drvSessionData *)CRYPTO_SESID2LID(sid); ++ if (NULL == sessionData) { ++ EPRINTK("%s(): OCF Free session called with Null Session ID.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ sessionToDeregister = sessionData->sessHandle; ++ ++ if (ICP_SESSION_INITIALISED == sessionData->inUse) { ++ DPRINTK("%s() Session not registered with LAC\n", __FUNCTION__); ++ } else if (NULL == sessionData->sessHandle) { ++ EPRINTK ++ ("%s(): OCF Free session called with Null Session Handle.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } else { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ if (CPA_STATUS_RETRY == lacStatus) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvDeregRetry(&sessionToDeregister)) { ++ /* the retry function increments the ++ dereg failed count */ ++ DPRINTK("%s(): LAC failed to deregister the " ++ "session. (localSessionId= %p)\n", ++ __FUNCTION__, sessionToDeregister); ++ retval = EPERM; ++ } ++ ++ } else if (CPA_STATUS_SUCCESS != lacStatus) { ++ DPRINTK("%s(): LAC failed to deregister the session. " ++ "localSessionId= %p, lacStatus = %d\n", ++ __FUNCTION__, sessionToDeregister, lacStatus); ++ atomic_inc(&lac_session_failed_dereg_count); ++ retval = EPERM; ++ } ++ } ++ ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return retval; ++ ++} ++ ++/* Name : icp_ocfDrvAlgCheck ++ * ++ * Description : This function checks whether the cryptodesc argument pertains ++ * to a sym or hash function ++ */ ++static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc) ++{ ++ ++ if (crp_desc->crd_alg == CRYPTO_3DES_CBC || ++ crp_desc->crd_alg == CRYPTO_AES_CBC || ++ crp_desc->crd_alg == CRYPTO_DES_CBC || ++ crp_desc->crd_alg == CRYPTO_NULL_CBC || ++ crp_desc->crd_alg == CRYPTO_ARC4) { ++ return ICP_OCF_DRV_ALG_CIPHER; ++ } ++ ++ return ICP_OCF_DRV_ALG_HASH; ++} ++ ++/* Name : icp_ocfDrvSymProcess ++ * ++ * Description : This function will map symmetric functionality calls from OCF ++ * to the LAC API. It will also allocate memory to store the session context. ++ * ++ * Notes: If it is the first perform call for a given session, then a LAC ++ * session is registered. After the session is registered, no checks as ++ * to whether session paramaters have changed (e.g. alg chain order) are ++ * done. ++ */ ++int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint) ++{ ++ struct icp_drvSessionData *sessionData = NULL; ++ struct icp_drvOpData *drvOpData = NULL; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ Cpa32U sessionCtxSizeInBytes = 0; ++ uint16_t numBufferListArray = 0; ++ ++ if (NULL == crp) { ++ DPRINTK("%s(): Invalid input parameters, cryptop is NULL\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (NULL == crp->crp_desc) { ++ DPRINTK("%s(): Invalid input parameters, no crp_desc attached " ++ "to crp\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ if (NULL == crp->crp_buf) { ++ DPRINTK("%s(): Invalid input parameters, no buffer attached " ++ "to crp\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ crp->crp_etype = EFAULT; ++ return EFAULT; ++ } ++ ++ sessionData = (struct icp_drvSessionData *) ++ (CRYPTO_SESID2LID(crp->crp_sid)); ++ if (NULL == sessionData) { ++ DPRINTK("%s(): Invalid input parameters, Null Session ID \n", ++ __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++/*If we get a request against a deregisted session, cancel operation*/ ++ if (ICP_SESSION_DEREGISTERED == sessionData->inUse) { ++ DPRINTK("%s(): Session ID %d was deregistered \n", ++ __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid))); ++ crp->crp_etype = EFAULT; ++ return EFAULT; ++ } ++ ++/*If none of the session states are set, then the session structure was either ++ not initialised properly or we are reading from a freed memory area (possible ++ due to OCF batch mode not removing queued requests against deregistered ++ sessions*/ ++ if (ICP_SESSION_INITIALISED != sessionData->inUse && ++ ICP_SESSION_RUNNING != sessionData->inUse) { ++ DPRINTK("%s(): Session - ID %d - not properly initialised or " ++ "memory freed back to the kernel \n", ++ __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid))); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ /*For the below checks, remember error checking is already done in LAC. ++ We're not validating inputs subsequent to registration */ ++ if (sessionData->inUse == ICP_SESSION_INITIALISED) { ++ DPRINTK("%s(): Initialising session\n", __FUNCTION__); ++ ++ if (NULL != crp->crp_desc->crd_next) { ++ if (ICP_OCF_DRV_ALG_CIPHER == ++ icp_ocfDrvAlgCheck(crp->crp_desc)) { ++ ++ sessionData->lacSessCtx.algChainOrder = ++ CPA_CY_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH; ++ ++ if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ } else { ++ sessionData->lacSessCtx.algChainOrder = ++ CPA_CY_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER; ++ ++ if (crp->crp_desc->crd_next->crd_flags & ++ CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ ++ } ++ ++ } else if (ICP_OCF_DRV_ALG_CIPHER == ++ icp_ocfDrvAlgCheck(crp->crp_desc)) { ++ if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ ++ } ++ ++ /*No action required for standalone Auth here */ ++ ++ /* Allocate memory for SymSessionCtx before the Session Registration */ ++ lacStatus = ++ cpaCySymSessionCtxGetSize(CPA_INSTANCE_HANDLE_SINGLE, ++ &(sessionData->lacSessCtx), ++ &sessionCtxSizeInBytes); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymSessionCtxGetSize failed - %d\n", ++ __FUNCTION__, lacStatus); ++ return EINVAL; ++ } ++ sessionData->sessHandle = ++ kmalloc(sessionCtxSizeInBytes, GFP_ATOMIC); ++ if (NULL == sessionData->sessHandle) { ++ EPRINTK ++ ("%s(): Failed to get memory for SymSessionCtx\n", ++ __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ lacStatus = cpaCySymInitSession(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvSymCallBack, ++ &(sessionData->lacSessCtx), ++ sessionData->sessHandle); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymInitSession failed -%d \n", ++ __FUNCTION__, lacStatus); ++ return EFAULT; ++ } ++ ++ sessionData->inUse = ICP_SESSION_RUNNING; ++ } ++ ++ drvOpData = kmem_cache_zalloc(drvOpData_zone, GFP_ATOMIC); ++ if (NULL == drvOpData) { ++ EPRINTK("%s():Failed to get memory for drvOpData\n", ++ __FUNCTION__); ++ crp->crp_etype = ENOMEM; ++ return ENOMEM; ++ } ++ ++ drvOpData->lacOpData.pSessionCtx = sessionData->sessHandle; ++ drvOpData->digestSizeInBytes = sessionData->lacSessCtx.hashSetupData. ++ digestResultLenInBytes; ++ drvOpData->crp = crp; ++ ++ /* Set the default buffer list array memory allocation */ ++ drvOpData->srcBuffer.pBuffers = drvOpData->bufferListArray; ++ drvOpData->numBufferListArray = ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS; ++ ++ /* ++ * Allocate buffer list array memory allocation if the ++ * data fragment is more than the default allocation ++ */ ++ if (crp->crp_flags & CRYPTO_F_SKBUF) { ++ numBufferListArray = icp_ocfDrvGetSkBuffFrags((struct sk_buff *) ++ crp->crp_buf); ++ if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < numBufferListArray) { ++ DPRINTK("%s() numBufferListArray more than default\n", ++ __FUNCTION__); ++ drvOpData->srcBuffer.pBuffers = NULL; ++ drvOpData->srcBuffer.pBuffers = ++ kmalloc(numBufferListArray * ++ sizeof(CpaFlatBuffer), GFP_ATOMIC); ++ if (NULL == drvOpData->srcBuffer.pBuffers) { ++ EPRINTK("%s() Failed to get memory for " ++ "pBuffers\n", __FUNCTION__); ++ kmem_cache_free(drvOpData_zone, drvOpData); ++ crp->crp_etype = ENOMEM; ++ return ENOMEM; ++ } ++ drvOpData->numBufferListArray = numBufferListArray; ++ } ++ } ++ ++ /* ++ * Check the type of buffer structure we got and convert it into ++ * CpaBufferList format. ++ */ ++ if (crp->crp_flags & CRYPTO_F_SKBUF) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvSkBuffToBufferList((struct sk_buff *)crp->crp_buf, ++ &(drvOpData->srcBuffer))) { ++ EPRINTK("%s():Failed to translate from SK_BUF " ++ "to bufferlist\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ drvOpData->bufferType = CRYPTO_F_SKBUF; ++ } else if (crp->crp_flags & CRYPTO_F_IOV) { ++ /* OCF only supports IOV of one entry. */ ++ if (NUM_IOV_SUPPORTED == ++ ((struct uio *)(crp->crp_buf))->uio_iovcnt) { ++ ++ icp_ocfDrvPtrAndLenToBufferList(((struct uio *)(crp-> ++ crp_buf))-> ++ uio_iov[0].iov_base, ++ ((struct uio *)(crp-> ++ crp_buf))-> ++ uio_iov[0].iov_len, ++ &(drvOpData-> ++ srcBuffer)); ++ ++ drvOpData->bufferType = CRYPTO_F_IOV; ++ ++ } else { ++ DPRINTK("%s():Unable to handle IOVs with lengths of " ++ "greater than one!\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ } else { ++ icp_ocfDrvPtrAndLenToBufferList(crp->crp_buf, ++ crp->crp_ilen, ++ &(drvOpData->srcBuffer)); ++ ++ drvOpData->bufferType = CRYPTO_BUF_CONTIG; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->crp_desc)) { ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ if (drvOpData->crp->crp_desc->crd_next != NULL) { ++ if (icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp-> ++ crp_desc->crd_next)) { ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ } ++ ++ /* Allocate srcBuffer's private meta data */ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAllocMetaData(&(drvOpData->srcBuffer), drvOpData)) { ++ EPRINTK("%s() icp_ocfDrvAllocMetaData failed\n", __FUNCTION__); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ /* Perform "in-place" crypto operation */ ++ lacStatus = cpaCySymPerformOp(CPA_INSTANCE_HANDLE_SINGLE, ++ (void *)drvOpData, ++ &(drvOpData->lacOpData), ++ &(drvOpData->srcBuffer), ++ &(drvOpData->srcBuffer), ++ &(drvOpData->verifyResult)); ++ if (CPA_STATUS_RETRY == lacStatus) { ++ DPRINTK("%s(): cpaCySymPerformOp retry, lacStatus = %d\n", ++ __FUNCTION__, lacStatus); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymPerformOp failed, lacStatus = %d\n", ++ __FUNCTION__, lacStatus); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ return 0; //OCF success status value ++ ++ err: ++ if (drvOpData->numBufferListArray > ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) { ++ kfree(drvOpData->srcBuffer.pBuffers); ++ } ++ icp_ocfDrvFreeMetaData(&(drvOpData->srcBuffer)); ++ kmem_cache_free(drvOpData_zone, drvOpData); ++ ++ return crp->crp_etype; ++} ++ ++/* Name : icp_ocfDrvProcessDataSetup ++ * ++ * Description : This function will setup all the cryptographic operation data ++ * that is required by LAC to execute the operation. ++ */ ++static int icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc) ++{ ++ CpaCyRandGenOpData randGenOpData; ++ CpaFlatBuffer randData; ++ ++ drvOpData->lacOpData.packetType = CPA_CY_SYM_PACKET_TYPE_FULL; ++ ++ /* Convert from the cryptop to the ICP LAC crypto parameters */ ++ switch (crp_desc->crd_alg) { ++ case CRYPTO_NULL_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = NULL_BLOCK_LEN; ++ break; ++ case CRYPTO_DES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = DES_BLOCK_LEN; ++ break; ++ case CRYPTO_3DES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = DES3_BLOCK_LEN; ++ break; ++ case CRYPTO_ARC4: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = ARC4_COUNTER_LEN; ++ break; ++ case CRYPTO_AES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = RIJNDAEL128_BLOCK_LEN; ++ break; ++ case CRYPTO_SHA1: ++ case CRYPTO_SHA1_HMAC: ++ case CRYPTO_SHA2_256: ++ case CRYPTO_SHA2_256_HMAC: ++ case CRYPTO_SHA2_384: ++ case CRYPTO_SHA2_384_HMAC: ++ case CRYPTO_SHA2_512: ++ case CRYPTO_SHA2_512_HMAC: ++ case CRYPTO_MD5: ++ case CRYPTO_MD5_HMAC: ++ drvOpData->lacOpData. ++ hashStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToHashInBytes = crp_desc->crd_len; ++ drvOpData->lacOpData. ++ pDigestResult = ++ icp_ocfDrvDigestPointerFind(drvOpData, crp_desc); ++ ++ if (NULL == drvOpData->lacOpData.pDigestResult) { ++ DPRINTK("%s(): ERROR - could not calculate " ++ "Digest Result memory address\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ drvOpData->lacOpData.digestVerify = CPA_FALSE; ++ break; ++ default: ++ DPRINTK("%s(): Crypto process error - algorithm not " ++ "found \n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ /* Figure out what the IV is supposed to be */ ++ if ((crp_desc->crd_alg == CRYPTO_DES_CBC) || ++ (crp_desc->crd_alg == CRYPTO_3DES_CBC) || ++ (crp_desc->crd_alg == CRYPTO_AES_CBC)) { ++ /*ARC4 doesn't use an IV */ ++ if (crp_desc->crd_flags & CRD_F_IV_EXPLICIT) { ++ /* Explicit IV provided to OCF */ ++ drvOpData->lacOpData.pIv = crp_desc->crd_iv; ++ } else { ++ /* IV is not explicitly provided to OCF */ ++ ++ /* Point the LAC OP Data IV pointer to our allocated ++ storage location for this session. */ ++ drvOpData->lacOpData.pIv = drvOpData->ivData; ++ ++ if ((crp_desc->crd_flags & CRD_F_ENCRYPT) && ++ ((crp_desc->crd_flags & CRD_F_IV_PRESENT) == 0)) { ++ ++ /* Encrypting - need to create IV */ ++ randGenOpData.generateBits = CPA_TRUE; ++ randGenOpData.lenInBytes = MAX_IV_LEN_IN_BYTES; ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) ++ drvOpData-> ++ ivData, ++ MAX_IV_LEN_IN_BYTES, ++ &randData); ++ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, ++ &randGenOpData, &randData)) { ++ DPRINTK("%s(): ERROR - Failed to" ++ " generate" ++ " Initialisation Vector\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ crypto_copyback(drvOpData->crp-> ++ crp_flags, ++ drvOpData->crp->crp_buf, ++ crp_desc->crd_inject, ++ drvOpData->lacOpData. ++ ivLenInBytes, ++ (caddr_t) (drvOpData->lacOpData. ++ pIv)); ++ } else { ++ /* Reading IV from buffer */ ++ crypto_copydata(drvOpData->crp-> ++ crp_flags, ++ drvOpData->crp->crp_buf, ++ crp_desc->crd_inject, ++ drvOpData->lacOpData. ++ ivLenInBytes, ++ (caddr_t) (drvOpData->lacOpData. ++ pIv)); ++ } ++ ++ } ++ ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvDigestPointerFind ++ * ++ * Description : This function is used to find the memory address of where the ++ * digest information shall be stored in. Input buffer types are an skbuff, iov ++ * or flat buffer. The address is found using the buffer data start address and ++ * an offset. ++ * ++ * Note: In the case of a linux skbuff, the digest address may exist within ++ * a memory space linked to from the start buffer. These linked memory spaces ++ * must be traversed by the data length offset in order to find the digest start ++ * address. Whether there is enough space for the digest must also be checked. ++ */ ++ ++static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc) ++{ ++ ++ int offsetInBytes = crp_desc->crd_inject; ++ uint32_t digestSizeInBytes = drvOpData->digestSizeInBytes; ++ uint8_t *flat_buffer_base = NULL; ++ int flat_buffer_length = 0; ++ struct sk_buff *skb; ++ ++ if (drvOpData->crp->crp_flags & CRYPTO_F_SKBUF) { ++ /*check if enough overall space to store hash */ ++ skb = (struct sk_buff *)(drvOpData->crp->crp_buf); ++ ++ if (skb->len < (offsetInBytes + digestSizeInBytes)) { ++ DPRINTK("%s() Not enough space for Digest" ++ " payload after the offset (%d), " ++ "digest size (%d) \n", __FUNCTION__, ++ offsetInBytes, digestSizeInBytes); ++ return NULL; ++ } ++ ++ return icp_ocfDrvSkbuffDigestPointerFind(drvOpData, ++ offsetInBytes, ++ digestSizeInBytes); ++ ++ } else { ++ /* IOV or flat buffer */ ++ if (drvOpData->crp->crp_flags & CRYPTO_F_IOV) { ++ /*single IOV check has already been done */ ++ flat_buffer_base = ((struct uio *) ++ (drvOpData->crp->crp_buf))-> ++ uio_iov[0].iov_base; ++ flat_buffer_length = ((struct uio *) ++ (drvOpData->crp->crp_buf))-> ++ uio_iov[0].iov_len; ++ } else { ++ flat_buffer_base = (uint8_t *) drvOpData->crp->crp_buf; ++ flat_buffer_length = drvOpData->crp->crp_ilen; ++ } ++ ++ if (flat_buffer_length < (offsetInBytes + digestSizeInBytes)) { ++ DPRINTK("%s() Not enough space for Digest " ++ "(IOV/Flat Buffer) \n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) (flat_buffer_base + offsetInBytes); ++ } ++ } ++ DPRINTK("%s() Should not reach this point\n", __FUNCTION__); ++ return NULL; ++} ++ ++/* Name : icp_ocfDrvSkbuffDigestPointerFind ++ * ++ * Description : This function is used by icp_ocfDrvDigestPointerFind to process ++ * the non-linear portion of the skbuff if the fragmentation type is a linked ++ * list (frag_list is not NULL in the skb_shared_info structure) ++ */ ++static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData ++ *drvOpData, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ ++ struct sk_buff *skb = NULL; ++ struct skb_shared_info *skb_shared = NULL; ++ ++ uint32_t skbuffisnonlinear = 0; ++ ++ uint32_t skbheadlen = 0; ++ ++ skb = (struct sk_buff *)(drvOpData->crp->crp_buf); ++ skbuffisnonlinear = skb_is_nonlinear(skb); ++ ++ skbheadlen = skb_headlen(skb); ++ ++ /*Linear skb checks */ ++ if (skbheadlen > offsetInBytes) { ++ ++ if (skbheadlen >= (offsetInBytes + digestSizeInBytes)) { ++ return (uint8_t *) (skb->data + offsetInBytes); ++ } else { ++ DPRINTK("%s() Auth payload stretches " ++ "accross contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } ++ } else { ++ if (skbuffisnonlinear) { ++ offsetInBytes -= skbheadlen; ++ } else { ++ DPRINTK("%s() Offset outside of buffer boundaries\n", ++ __FUNCTION__); ++ return NULL; ++ } ++ } ++ ++ /*Non Linear checks */ ++ skb_shared = (struct skb_shared_info *)(skb->end); ++ if (unlikely(NULL == skb_shared)) { ++ DPRINTK("%s() skbuff shared info stucture is NULL! \n", ++ __FUNCTION__); ++ return NULL; ++ } else if ((0 != skb_shared->nr_frags) && ++ (skb_shared->frag_list != NULL)) { ++ DPRINTK("%s() skbuff nr_frags AND " ++ "frag_list not supported \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ /*TCP segmentation more likely than IP fragmentation */ ++ if (likely(0 != skb_shared->nr_frags)) { ++ return icp_ocfDrvDigestSkbNRFragsCheck(skb, skb_shared, ++ offsetInBytes, ++ digestSizeInBytes); ++ } else if (skb_shared->frag_list != NULL) { ++ return icp_ocfDrvDigestSkbFragListCheck(skb, skb_shared, ++ offsetInBytes, ++ digestSizeInBytes); ++ } else { ++ DPRINTK("%s() skbuff is non-linear but does not show any " ++ "linked data\n", __FUNCTION__); ++ return NULL; ++ } ++ ++} ++ ++/* Name : icp_ocfDrvDigestSkbNRFragsCheck ++ * ++ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to ++ * process the non-linear portion of the skbuff, if the fragmentation type is ++ * page fragments ++ */ ++static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ int i = 0; ++ /*nr_frags starts from 1 */ ++ if (MAX_SKB_FRAGS < skb_shared->nr_frags) { ++ DPRINTK("%s error processing skbuff " ++ "page frame -- MAX FRAGS exceeded \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ for (i = 0; i < skb_shared->nr_frags; i++) { ++ ++ if (offsetInBytes >= skb_shared->frags[i].size) { ++ /*offset still greater than data position */ ++ offsetInBytes -= skb_shared->frags[i].size; ++ } else { ++ /* found the page containing start of hash */ ++ ++ if (NULL == skb_shared->frags[i].page) { ++ DPRINTK("%s() Linked page is NULL!\n", ++ __FUNCTION__); ++ return NULL; ++ } ++ ++ if (offsetInBytes + digestSizeInBytes > ++ skb_shared->frags[i].size) { ++ DPRINTK("%s() Auth payload stretches accross " ++ "contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) (skb_shared->frags[i].page + ++ skb_shared->frags[i]. ++ page_offset + ++ offsetInBytes); ++ } ++ } ++ /*only possible if internal page sizes are set wrong */ ++ if (offsetInBytes < 0) { ++ DPRINTK("%s error processing skbuff page frame " ++ "-- offset calculation \n", __FUNCTION__); ++ return NULL; ++ } ++ } ++ /*only possible if internal page sizes are set wrong */ ++ DPRINTK("%s error processing skbuff page frame " ++ "-- ran out of page fragments, remaining offset = %d \n", ++ __FUNCTION__, offsetInBytes); ++ return NULL; ++ ++} ++ ++/* Name : icp_ocfDrvDigestSkbFragListCheck ++ * ++ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to ++ * process the non-linear portion of the skbuff, if the fragmentation type is ++ * a linked list ++ * ++ */ ++static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ ++ struct sk_buff *skb_list = skb_shared->frag_list; ++ /*check added for readability */ ++ if (NULL == skb_list) { ++ DPRINTK("%s error processing skbuff " ++ "-- no more list! \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ for (; skb_list; skb_list = skb_list->next) { ++ if (NULL == skb_list) { ++ DPRINTK("%s error processing skbuff " ++ "-- no more list! \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ if (offsetInBytes >= skb_list->len) { ++ offsetInBytes -= skb_list->len; ++ ++ } else { ++ if (offsetInBytes + digestSizeInBytes > skb_list->len) { ++ DPRINTK("%s() Auth payload stretches accross " ++ "contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) ++ (skb_list->data + offsetInBytes); ++ } ++ ++ } ++ ++ /*This check is only needed if internal skb_list length values ++ are set wrong. */ ++ if (0 > offsetInBytes) { ++ DPRINTK("%s() error processing skbuff object -- offset " ++ "calculation \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ } ++ ++ /*catch all for unusual for-loop exit. ++ This code should never be reached */ ++ DPRINTK("%s() Catch-All hit! Process error.\n", __FUNCTION__); ++ return NULL; ++} +--- /dev/null +++ b/crypto/ocf/pasemi/pasemi.c @@ -0,0 +1,1009 @@ +/* diff --git a/target/linux/generic-2.6/patches-2.6.26/971-ocf_compile_fix.patch b/target/linux/generic-2.6/patches-2.6.25/972-ocf_compile_fix.patch similarity index 100% rename from target/linux/generic-2.6/patches-2.6.26/971-ocf_compile_fix.patch rename to target/linux/generic-2.6/patches-2.6.25/972-ocf_compile_fix.patch diff --git a/target/linux/generic-2.6/patches-2.6.26/970-ocf_kbuild_integration.patch b/target/linux/generic-2.6/patches-2.6.26/970-ocf_kbuild_integration.patch new file mode 100644 index 0000000000..3057307f27 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.26/970-ocf_kbuild_integration.patch @@ -0,0 +1,25 @@ +--- a/crypto/Kconfig ++++ b/crypto/Kconfig +@@ -675,6 +675,8 @@ config CRYPTO_PRNG + for cryptographic modules. Uses the Algorithm specified in + ANSI X9.31 A.2.4 + ++source "crypto/ocf/Kconfig" ++ + source "drivers/crypto/Kconfig" + + endif # if CRYPTO +--- a/crypto/Makefile ++++ b/crypto/Makefile +@@ -73,6 +73,11 @@ obj-$(CONFIG_CRYPTO_PRNG) += prng.o + obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o + + # ++# OCF ++# ++obj-$(CONFIG_OCF_OCF) += ocf/ ++ ++# + # generic algorithms and the async_tx api + # + obj-$(CONFIG_XOR_BLOCKS) += xor.o diff --git a/target/linux/generic-2.6/patches-2.6.26/970-ocf_20080704.patch b/target/linux/generic-2.6/patches-2.6.26/971-ocf_20080917.patch similarity index 80% rename from target/linux/generic-2.6/patches-2.6.26/970-ocf_20080704.patch rename to target/linux/generic-2.6/patches-2.6.26/971-ocf_20080917.patch index 7c07cd107e..1775226c9c 100644 --- a/target/linux/generic-2.6/patches-2.6.26/970-ocf_20080704.patch +++ b/target/linux/generic-2.6/patches-2.6.26/971-ocf_20080917.patch @@ -1,23 +1,3 @@ ---- a/crypto/Kconfig -+++ b/crypto/Kconfig -@@ -678,3 +678,6 @@ config CRYPTO_PRNG - source "drivers/crypto/Kconfig" - - endif # if CRYPTO -+ -+source "crypto/ocf/Kconfig" -+ ---- a/crypto/Makefile -+++ b/crypto/Makefile -@@ -72,6 +72,8 @@ obj-$(CONFIG_CRYPTO_LZO) += lzo.o - obj-$(CONFIG_CRYPTO_PRNG) += prng.o - obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o - -+obj-$(CONFIG_OCF_OCF) += ocf/ -+ - # - # generic algorithms and the async_tx api - # --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -129,6 +129,9 @@ @@ -60,7 +40,7 @@ + */ +void random_input_words(__u32 *buf, size_t wordcount, int ent_count) +{ -+ mix_pool_bytes(&input_pool, buf, wordcount); ++ mix_pool_bytes(&input_pool, buf, wordcount*4); + + credit_entropy_bits(&input_pool, ent_count); + @@ -86,13 +66,13 @@ +{ + int count; + -+ wait_event_interruptible(random_write_wait, ++ wait_event_interruptible(random_write_wait, + input_pool.entropy_count < random_write_wakeup_thresh); + + count = random_write_wakeup_thresh - input_pool.entropy_count; + + /* likely we got woken up due to a signal */ -+ if (count <= 0) count = random_read_wakeup_thresh; ++ if (count <= 0) count = random_read_wakeup_thresh; + + DEBUG_ENT("requesting %d bits from input_wait()er %d<%d\n", + count, @@ -211,7 +191,7 @@ + --- /dev/null +++ b/crypto/ocf/Makefile -@@ -0,0 +1,120 @@ +@@ -0,0 +1,121 @@ +# for SGlinux builds +-include $(ROOTDIR)/modules/.config + @@ -256,6 +236,7 @@ +$(_obj)-$(CONFIG_OCF_IXP4XX) += ixp4xx$(_slash) +$(_obj)-$(CONFIG_OCF_TALITOS) += talitos$(_slash) +$(_obj)-$(CONFIG_OCF_PASEMI) += pasemi$(_slash) ++$(_obj)-$(CONFIG_OCF_EP80579) += ep80579$(_slash) +$(_obj)-$(CONFIG_OCF_OCFNULL) += ocfnull$(_slash) + +ocf-objs := $(OCF_OBJS) @@ -292,7 +273,7 @@ + diff -Nau /dev/null $$t | sed 's?^+++ \./?+++ linux/crypto/ocf/?'; \ + done > $$patch; \ + cat patches/linux-2.4.35-ocf.patch $$patch > $$patch24; \ -+ cat patches/linux-2.6.25-ocf.patch $$patch > $$patch26 ++ cat patches/linux-2.6.26-ocf.patch $$patch > $$patch26 + +.PHONY: tarball +tarball: @@ -470,6 +451,116 @@ +endif + --- /dev/null ++++ b/crypto/ocf/ep80579/Makefile +@@ -0,0 +1,107 @@ ++######################################################################### ++# ++# Targets supported ++# all - builds everything and installs ++# install - identical to all ++# depend - build dependencies ++# clean - clears derived objects except the .depend files ++# distclean- clears all derived objects and the .depend file ++# ++# @par ++# This file is provided under a dual BSD/GPLv2 license. When using or ++# redistributing this file, you may do so under either license. ++# ++# GPL LICENSE SUMMARY ++# ++# Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++# ++# This program is free software; you can redistribute it and/or modify ++# it under the terms of version 2 of the GNU General Public License as ++# published by the Free Software Foundation. ++# ++# This program is distributed in the hope that it will be useful, but ++# WITHOUT ANY WARRANTY; without even the implied warranty of ++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++# General Public License for more details. ++# ++# You should have received a copy of the GNU General Public License ++# along with this program; if not, write to the Free Software ++# Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++# The full GNU General Public License is included in this distribution ++# in the file called LICENSE.GPL. ++# ++# Contact Information: ++# Intel Corporation ++# ++# BSD LICENSE ++# ++# Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++# All rights reserved. ++# ++# Redistribution and use in source and binary forms, with or without ++# modification, are permitted provided that the following conditions ++# are met: ++# ++# * Redistributions of source code must retain the above copyright ++# notice, this list of conditions and the following disclaimer. ++# * Redistributions in binary form must reproduce the above copyright ++# notice, this list of conditions and the following disclaimer in ++# the documentation and/or other materials provided with the ++# distribution. ++# * Neither the name of Intel Corporation nor the names of its ++# contributors may be used to endorse or promote products derived ++# from this software without specific prior written permission. ++# ++# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++# ++# ++# version: Security.L.1.0.130 ++############################################################################ ++ ++ ++####################Common variables and definitions######################## ++ ++# Ensure The ENV_DIR environmental var is defined. ++ifndef ICP_ENV_DIR ++$(error ICP_ENV_DIR is undefined. Please set the path to your environment makefile \ ++ "-> setenv ICP_ENV_DIR ") ++endif ++ ++#Add your project environment Makefile ++include $(ICP_ENV_DIR)/environment.mk ++ ++#include the makefile with all the default and common Make variable definitions ++include $(ICP_BUILDSYSTEM_PATH)/build_files/common.mk ++ ++#Add the name for the executable, Library or Module output definitions ++OUTPUT_NAME= icp_ocf ++ ++# List of Source Files to be compiled ++SOURCES= icp_common.c icp_sym.c icp_asym.c ++ ++#common includes between all supported OSes ++INCLUDES= -I $(ICP_API_DIR) -I$(ICP_LAC_API) \ ++-I$(ICP_OCF_SRC_DIR) ++ ++# The location of the os level makefile needs to be changed. ++include $(ICP_ENV_DIR)/$(ICP_OS)_$(ICP_OS_LEVEL).mk ++ ++# On the line directly below list the outputs you wish to build for, ++# e.g "lib_static lib_shared exe module" as show below ++install: module ++ ++###################Include rules makefiles######################## ++include $(ICP_BUILDSYSTEM_PATH)/build_files/rules.mk ++###################End of Rules inclusion######################### ++ ++ +--- /dev/null +++ b/crypto/ocf/pasemi/Makefile @@ -0,0 +1,12 @@ +# for SGlinux builds @@ -486,7 +577,7 @@ + --- /dev/null +++ b/crypto/ocf/Config.in -@@ -0,0 +1,32 @@ +@@ -0,0 +1,34 @@ +############################################################################# + +mainmenu_option next_comment @@ -512,6 +603,8 @@ + CONFIG_OCF_TALITOS $CONFIG_OCF_OCF +dep_tristate ' pasemi (HW crypto engine)' \ + CONFIG_OCF_PASEMI $CONFIG_OCF_OCF ++dep_tristate ' ep80579 (HW crypto engine)' \ ++ CONFIG_OCF_EP80579 $CONFIG_OCF_OCF +dep_tristate ' ocfnull (does no crypto)' \ + CONFIG_OCF_OCFNULL $CONFIG_OCF_OCF +dep_tristate ' ocf-bench (HW crypto in-kernel benchmark)' \ @@ -521,7 +614,7 @@ +############################################################################# --- /dev/null +++ b/crypto/ocf/Kconfig -@@ -0,0 +1,95 @@ +@@ -0,0 +1,101 @@ +menu "OCF Configuration" + +config OCF_OCF @@ -597,10 +690,16 @@ + OCF driver for Freescale's security engine (SEC/talitos). + +config OCF_PASEMI -+ tristate "pasemi (HW crypto engine)" -+ depends on OCF_OCF && PPC_PASEMI -+ help -+ OCF driver for for PA Semi PWRficient DMA Engine ++ tristate "pasemi (HW crypto engine)" ++ depends on OCF_OCF && PPC_PASEMI ++ help ++ OCF driver for the PA Semi PWRficient DMA Engine ++ ++config OCF_EP80579 ++ tristate "ep80579 (HW crypto engine)" ++ depends on OCF_OCF ++ help ++ OCF driver for the Intel EP80579 Integrated Processor Product Line. + +config OCF_OCFNULL + tristate "ocfnull (fake crypto engine)" @@ -619,7 +718,7 @@ +endmenu --- /dev/null +++ b/crypto/ocf/README -@@ -0,0 +1,166 @@ +@@ -0,0 +1,167 @@ +README - ocf-linux-20071215 +--------------------------- + @@ -643,7 +742,7 @@ + + cd linux-2.4*; gunzip < ocf-linux-24-XXXXXXXX.patch.gz | patch -p1 + cd linux-2.6*; gunzip < ocf-linux-26-XXXXXXXX.patch.gz | patch -p1 -+ ++ + if you do one of the above, then you can proceed to the next step, + or you can do the above process by hand with using the patches against + linux-2.4.35 and 2.6.23 to include the ocf code under crypto/ocf. @@ -656,17 +755,18 @@ + cd .. + patch -p1 < crypto/ocf/patches/linux-2.4.35-ocf.patch + -+ for 2.6.23 (and later) ++ for 2.6.23 (and later), find the kernel patch specific (or nearest) ++ to your kernel versions and then: + -+ cd linux-2.6.23/crypto ++ cd linux-2.6.NN/crypto + tar xvzf ocf-linux.tar.gz + cd .. -+ patch -p1 < crypto/ocf/patches/linux-2.6.23-ocf.patch ++ patch -p1 < crypto/ocf/patches/linux-2.6.NN-ocf.patch + + It should be easy to take this patch and apply it to other more + recent versions of the kernels. The same patches should also work + relatively easily on kernels as old as 2.6.11 and 2.4.18. -+ ++ + * under 2.4 if you are on a non-x86 platform, you may need to: + + cp linux-2.X.x/include/asm-i386/kmap_types.h linux-2.X.x/include/asm-YYY @@ -686,7 +786,7 @@ + + /usr/include/crypto/cryptodev.h + -+ * patch your openssl-0.9.8g code with the openssl-0.9.8g.patch. ++ * patch your openssl-0.9.8i code with the openssl-0.9.8i.patch. + (NOTE: there is no longer a need to patch ssh). The patch is against: + openssl-0_9_8e + @@ -694,7 +794,7 @@ + to older OCF releases. This patch is unlikely to work on older + openssl versions. + -+ openssl-0.9.8g.patch ++ openssl-0.9.8i.patch + - enables --with-cryptodev for non BSD systems + - adds -cpu option to openssl speed for calculating CPU load + under linux @@ -869,7 +969,7 @@ + * MAX_COMMAND = base command + mac command + encrypt command + + * mac-key + rc4-key + * MAX_RESULT = base result + mac result + mac + encrypt result -+ * ++ * + * + */ +#define HIFN_MAX_COMMAND (8 + 8 + 8 + 64 + 260) @@ -1227,7 +1327,7 @@ + + +/********************************************************************* -+ * Structs for board commands ++ * Structs for board commands + * + *********************************************************************/ + @@ -1437,7 +1537,7 @@ + + /* + * Our current positions for insertion and removal from the desriptor -+ * rings. ++ * rings. + */ + int cmdi, srci, dsti, resi; + volatile int cmdu, srcu, dstu, resu; @@ -1559,7 +1659,7 @@ + * + * session_num + * ----------- -+ * A number between 0 and 2048 (for DRAM models) or a number between ++ * A number between 0 and 2048 (for DRAM models) or a number between + * 0 and 768 (for SRAM models). Those who don't want to use session + * numbers should leave value at zero and send a new crypt key and/or + * new MAC key on every command. If you use session numbers and @@ -1573,7 +1673,7 @@ + * ---- + * Either fill in the mbuf pointer and npa=0 or + * fill packp[] and packl[] and set npa to > 0 -+ * ++ * + * mac_header_skip + * --------------- + * The number of bytes of the source_buf that are skipped over before @@ -1661,7 +1761,7 @@ + * 0 for success, negative values on error + * + * Defines for negative error codes are: -+ * ++ * + * HIFN_CRYPTO_BAD_INPUT : The passed in command had invalid settings. + * HIFN_CRYPTO_RINGS_FULL : All DMA rings were full and non-blocking + * behaviour was requested. @@ -2465,7 +2565,7 @@ + sc->sc_dmaier |= HIFN_DMAIER_PUBDONE; + WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); +#ifdef HIFN_VULCANDEV -+ sc->sc_pkdev = make_dev(&vulcanpk_cdevsw, 0, ++ sc->sc_pkdev = make_dev(&vulcanpk_cdevsw, 0, + UID_ROOT, GID_WHEEL, 0666, + "vulcanpk"); + sc->sc_pkdev->si_drv1 = sc; @@ -2664,7 +2764,7 @@ + * "hifn_enable_crypto" is called to enable it. The check is important, + * as enabling crypto twice will lock the board. + */ -+static int ++static int +hifn_enable_crypto(struct hifn_softc *sc) +{ + u_int32_t dmacfg, ramcfg, encl, addr, i; @@ -2756,7 +2856,7 @@ + * Give initial values to the registers listed in the "Register Space" + * section of the HIFN Software Development reference manual. + */ -+static void ++static void +hifn_init_pci_registers(struct hifn_softc *sc) +{ + DPRINTF("%s()\n", __FUNCTION__); @@ -3141,7 +3241,7 @@ +/* + * Initialize the descriptor rings. + */ -+static void ++static void +hifn_init_dma(struct hifn_softc *sc) +{ + struct hifn_dma *dma = sc->sc_dma; @@ -3429,10 +3529,10 @@ + dma->srci = idx; + dma->srcu += src->nsegs; + return (idx); -+} ++} + + -+static int ++static int +hifn_crypto( + struct hifn_softc *sc, + struct hifn_command *cmd, @@ -4301,7 +4401,7 @@ + cmd->cklen = enccrd->crd_klen >> 3; + cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY; + -+ /* ++ /* + * Need to specify the size for the AES key in the masks. + */ + if ((cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) == @@ -4858,9 +4958,9 @@ +static ssize_t +cryptoid_show(struct device *dev, + struct device_attribute *attr, -+ char *buf) -+{ -+ struct hipp_softc *sc; ++ char *buf) ++{ ++ struct hipp_softc *sc; + + sc = pci_get_drvdata(to_pci_dev (dev)); + return sprintf (buf, "%d\n", sc->sc_cid); @@ -4992,13 +5092,13 @@ + crypto_unregister_all(sc->sc_cid); + if (sc->sc_irq != -1) + free_irq(sc->sc_irq, sc); -+ ++ +#if 0 + if (sc->sc_dma) { + /* Turn off DMA polling */ + WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | + HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); -+ ++ + pci_free_consistent(sc->sc_pcidev, + sizeof(*sc->sc_dma), + sc->sc_dma, sc->sc_dma_physaddr); @@ -5151,7 +5251,7 @@ @@ -0,0 +1,93 @@ +/* + * Hifn HIPP-I/HIPP-II (7855/8155) driver. -+ * Copyright (c) 2006 Michael Richardson * ++ * Copyright (c) 2006 Michael Richardson * + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions @@ -5374,7 +5474,7 @@ + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, -+ 0, 0, 0, 0, 0, 0, 0, 0, ++ 0, 0, 0, 0, 0, 0, 0, 0, +}; + +static void md5_calc(u_int8_t *, md5_ctxt *); @@ -5409,7 +5509,7 @@ + for (i = gap; i + MD5_BUFLEN <= len; i += MD5_BUFLEN) { + md5_calc((u_int8_t *)(input + i), ctxt); + } -+ ++ + ctxt->md5_i = len - i; + bcopy((void *)(input + i), (void *)ctxt->md5_buf, ctxt->md5_i); + } else { @@ -5424,7 +5524,7 @@ +{ + u_int gap; + -+ /* Don't count up padding. Keep md5_n. */ ++ /* Don't count up padding. Keep md5_n. */ + gap = MD5_BUFLEN - ctxt->md5_i; + if (gap > 8) { + bcopy(md5_paddat, @@ -5440,7 +5540,7 @@ + MD5_BUFLEN - sizeof(ctxt->md5_n)); + } + -+ /* 8 byte word */ ++ /* 8 byte word */ +#if BYTE_ORDER == LITTLE_ENDIAN + bcopy(&ctxt->md5_n8[0], &ctxt->md5_buf[56], 8); +#endif @@ -5488,7 +5588,7 @@ + u_int32_t D = ctxt->md5_std; +#if BYTE_ORDER == LITTLE_ENDIAN + u_int32_t *X = (u_int32_t *)b64; -+#endif ++#endif +#if BYTE_ORDER == BIG_ENDIAN + /* 4 byte words */ + /* what a brute force but fast! */ @@ -5520,7 +5620,7 @@ + ROUND1(C, D, A, B, 10, Sc, 11); ROUND1(B, C, D, A, 11, Sd, 12); + ROUND1(A, B, C, D, 12, Sa, 13); ROUND1(D, A, B, C, 13, Sb, 14); + ROUND1(C, D, A, B, 14, Sc, 15); ROUND1(B, C, D, A, 15, Sd, 16); -+ ++ + ROUND2(A, B, C, D, 1, Se, 17); ROUND2(D, A, B, C, 6, Sf, 18); + ROUND2(C, D, A, B, 11, Sg, 19); ROUND2(B, C, D, A, 0, Sh, 20); + ROUND2(A, B, C, D, 5, Se, 21); ROUND2(D, A, B, C, 10, Sf, 22); @@ -5538,14 +5638,14 @@ + ROUND3(C, D, A, B, 3, Sk, 43); ROUND3(B, C, D, A, 6, Sl, 44); + ROUND3(A, B, C, D, 9, Si, 45); ROUND3(D, A, B, C, 12, Sj, 46); + ROUND3(C, D, A, B, 15, Sk, 47); ROUND3(B, C, D, A, 2, Sl, 48); -+ -+ ROUND4(A, B, C, D, 0, Sm, 49); ROUND4(D, A, B, C, 7, Sn, 50); -+ ROUND4(C, D, A, B, 14, So, 51); ROUND4(B, C, D, A, 5, Sp, 52); -+ ROUND4(A, B, C, D, 12, Sm, 53); ROUND4(D, A, B, C, 3, Sn, 54); -+ ROUND4(C, D, A, B, 10, So, 55); ROUND4(B, C, D, A, 1, Sp, 56); -+ ROUND4(A, B, C, D, 8, Sm, 57); ROUND4(D, A, B, C, 15, Sn, 58); -+ ROUND4(C, D, A, B, 6, So, 59); ROUND4(B, C, D, A, 13, Sp, 60); -+ ROUND4(A, B, C, D, 4, Sm, 61); ROUND4(D, A, B, C, 11, Sn, 62); ++ ++ ROUND4(A, B, C, D, 0, Sm, 49); ROUND4(D, A, B, C, 7, Sn, 50); ++ ROUND4(C, D, A, B, 14, So, 51); ROUND4(B, C, D, A, 5, Sp, 52); ++ ROUND4(A, B, C, D, 12, Sm, 53); ROUND4(D, A, B, C, 3, Sn, 54); ++ ROUND4(C, D, A, B, 10, So, 55); ROUND4(B, C, D, A, 1, Sp, 56); ++ ROUND4(A, B, C, D, 8, Sm, 57); ROUND4(D, A, B, C, 15, Sn, 58); ++ ROUND4(C, D, A, B, 6, So, 59); ROUND4(B, C, D, A, 13, Sp, 60); ++ ROUND4(A, B, C, D, 4, Sm, 61); ROUND4(D, A, B, C, 11, Sn, 62); + ROUND4(C, D, A, B, 2, So, 63); ROUND4(B, C, D, A, 9, Sp, 64); + + ctxt->md5_sta += A; @@ -6004,7 +6104,7 @@ + sc->sc_needwakeup &= ~wakeup; + crypto_unblock(sc->sc_cid, wakeup); + } -+ ++ + return IRQ_HANDLED; +} + @@ -6540,7 +6640,7 @@ + /* + * Tell the hardware to copy the header to the output. + * The header is defined as the data from the end of -+ * the bypass to the start of data to be encrypted. ++ * the bypass to the start of data to be encrypted. + * Typically this is the inline IV. Note that you need + * to do this even if src+dst are the same; it appears + * that w/o this bit the crypted data is written @@ -6639,7 +6739,7 @@ + * destination wil result in a + * destination particle list that does + * the necessary scatter DMA. -+ */ ++ */ + safestats.st_iovnotuniform++; + err = EINVAL; + goto errout; @@ -6752,7 +6852,7 @@ + pci_unmap_operand(sc, &re->re_dst); + pci_unmap_operand(sc, &re->re_src); + -+ /* ++ /* + * If result was written to a differet mbuf chain, swap + * it in as the return value and reclaim the original. + */ @@ -6802,14 +6902,14 @@ + */ + re->re_sastate.sa_saved_indigest[0] = + cpu_to_be32(re->re_sastate.sa_saved_indigest[0]); -+ re->re_sastate.sa_saved_indigest[1] = ++ re->re_sastate.sa_saved_indigest[1] = + cpu_to_be32(re->re_sastate.sa_saved_indigest[1]); + re->re_sastate.sa_saved_indigest[2] = + cpu_to_be32(re->re_sastate.sa_saved_indigest[2]); + } else { + re->re_sastate.sa_saved_indigest[0] = + cpu_to_le32(re->re_sastate.sa_saved_indigest[0]); -+ re->re_sastate.sa_saved_indigest[1] = ++ re->re_sastate.sa_saved_indigest[1] = + cpu_to_le32(re->re_sastate.sa_saved_indigest[1]); + re->re_sastate.sa_saved_indigest[2] = + cpu_to_le32(re->re_sastate.sa_saved_indigest[2]); @@ -6851,7 +6951,7 @@ + * status reg in the read in case it is initialized. Then read + * the data register until it changes from the first read. + * Once it changes read the data register until it changes -+ * again. At this time the RNG is considered initialized. ++ * again. At this time the RNG is considered initialized. + * This could take between 750ms - 1000ms in time. + */ + i = 0; @@ -6889,7 +6989,7 @@ +{ + DPRINTF(("%s()\n", __FUNCTION__)); + -+ WRITE_REG(sc, SAFE_RNG_CTRL, ++ WRITE_REG(sc, SAFE_RNG_CTRL, + READ_REG(sc, SAFE_RNG_CTRL) | SAFE_RNG_CTRL_SHORTEN); +} + @@ -6911,7 +7011,7 @@ + int i, rc; + + DPRINTF(("%s()\n", __FUNCTION__)); -+ ++ + safestats.st_rng++; + /* + * Fetch the next block of data. @@ -7131,9 +7231,9 @@ +#endif + + crp = (struct cryptop *)re->re_crp; -+ ++ + re->re_desc.d_csr = 0; -+ ++ + crp->crp_etype = EFAULT; + crypto_done(crp); + return(0); @@ -7295,7 +7395,7 @@ + ((base_bits + 7) / 8) - 1; + modp = krp->krp_param[SAFE_CRK_PARAM_MOD].crp_p + + ((mod_bits + 7) / 8) - 1; -+ ++ + for (i = 0; i < (mod_bits + 7) / 8; i++, basep--, modp--) { + if (*modp < *basep) + goto too_small; @@ -8695,7 +8795,7 @@ +#define SAFE_SA_CMD1_AES192 0x03000000 /* 192-bit AES key */ +#define SAFE_SA_CMD1_AES256 0x04000000 /* 256-bit AES key */ + -+/* ++/* + * Security Associate State Record (Rev 1). + */ +struct safe_sastate { @@ -10642,7 +10742,7 @@ + + /* XXX flush queues??? */ + -+ /* ++ /* + * Reclaim dynamically allocated resources. + */ + if (crypto_drivers != NULL) @@ -11001,12 +11101,12 @@ + * The Freescale SEC (also known as 'talitos') resides on the + * internal bus, and runs asynchronous to the processor core. It has + * a wide gamut of cryptographic acceleration features, including single- -+ * pass IPsec (also known as algorithm chaining). To properly utilize -+ * all of the SEC's performance enhancing features, further reworking ++ * pass IPsec (also known as algorithm chaining). To properly utilize ++ * all of the SEC's performance enhancing features, further reworking + * of higher level code (framework, applications) will be necessary. + * + * The following table shows which SEC version is present in which devices: -+ * ++ * + * Devices SEC version + * + * 8272, 8248 SEC 1.0 @@ -11050,13 +11150,13 @@ + * + * Channel ch0 may drive an aes operation to the aes unit (AESU), + * and, at the same time, ch1 may drive a message digest operation -+ * to the mdeu. Each channel has an input descriptor FIFO, and the ++ * to the mdeu. Each channel has an input descriptor FIFO, and the + * FIFO can contain, e.g. on the 8541E, up to 24 entries, before a + * a buffer overrun error is triggered. The controller is responsible -+ * for fetching the data from descriptor pointers, and passing the -+ * data to the appropriate EUs. The controller also writes the -+ * cryptographic operation's result to memory. The SEC notifies -+ * completion by triggering an interrupt and/or setting the 1st byte ++ * for fetching the data from descriptor pointers, and passing the ++ * data to the appropriate EUs. The controller also writes the ++ * cryptographic operation's result to memory. The SEC notifies ++ * completion by triggering an interrupt and/or setting the 1st byte + * of the hdr field to 0xff. + * + * TODO: @@ -11093,7 +11193,7 @@ +#include +#include + -+#define DRV_NAME "talitos" ++#define DRV_NAME "talitos" + +#include "talitos_dev.h" +#include "talitos_soft.h" @@ -11108,7 +11208,7 @@ +static int talitos_freesession(device_t dev, u_int64_t tid); +static int talitos_process(device_t dev, struct cryptop *crp, int hint); +static void dump_talitos_status(struct talitos_softc *sc); -+static int talitos_submit(struct talitos_softc *sc, struct talitos_desc *td, ++static int talitos_submit(struct talitos_softc *sc, struct talitos_desc *td, + int chsel); +static void talitos_doneprocessing(struct talitos_softc *sc); +static void talitos_init_device(struct talitos_softc *sc); @@ -11166,26 +11266,26 @@ + v_hi = talitos_read(sc->sc_base_addr + TALITOS_ISR_HI); + printk(KERN_INFO "%s: ISR 0x%08x_%08x\n", + device_get_nameunit(sc->sc_cdev), v, v_hi); -+ for (i = 0; i < sc->sc_num_channels; i++) { -+ v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + ++ for (i = 0; i < sc->sc_num_channels; i++) { ++ v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + + TALITOS_CH_CDPR); -+ v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + ++ v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + + TALITOS_CH_CDPR_HI); -+ printk(KERN_INFO "%s: CDPR ch%d 0x%08x_%08x\n", ++ printk(KERN_INFO "%s: CDPR ch%d 0x%08x_%08x\n", + device_get_nameunit(sc->sc_cdev), i, v, v_hi); + } -+ for (i = 0; i < sc->sc_num_channels; i++) { -+ v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + ++ for (i = 0; i < sc->sc_num_channels; i++) { ++ v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + + TALITOS_CH_CCPSR); -+ v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + ++ v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + + TALITOS_CH_CCPSR_HI); -+ printk(KERN_INFO "%s: CCPSR ch%d 0x%08x_%08x\n", ++ printk(KERN_INFO "%s: CCPSR ch%d 0x%08x_%08x\n", + device_get_nameunit(sc->sc_cdev), i, v, v_hi); + } + ptr = sc->sc_base_addr + TALITOS_CH_DESCBUF; -+ for (i = 0; i < 16; i++) { ++ for (i = 0; i < 16; i++) { + v = talitos_read(ptr++); v_hi = talitos_read(ptr++); -+ printk(KERN_INFO "%s: DESCBUF ch0 0x%08x_%08x (tdp%02d)\n", ++ printk(KERN_INFO "%s: DESCBUF ch0 0x%08x_%08x (tdp%02d)\n", + device_get_nameunit(sc->sc_cdev), v, v_hi, i); + } + return; @@ -11193,7 +11293,7 @@ + + +#ifdef CONFIG_OCF_RANDOMHARVEST -+/* ++/* + * pull random numbers off the RNG FIFO, not exceeding amount available + */ +static int @@ -11213,7 +11313,7 @@ + return 0; + } + /* -+ * OFL is number of available 64-bit words, ++ * OFL is number of available 64-bit words, + * shift and convert to a 32-bit word count + */ + v = talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI); @@ -11221,16 +11321,16 @@ + if (maxwords > v) + maxwords = v; + for (rc = 0; rc < maxwords; rc++) { -+ buf[rc] = talitos_read(sc->sc_base_addr + ++ buf[rc] = talitos_read(sc->sc_base_addr + + TALITOS_RNG_FIFO + rc*sizeof(u_int32_t)); + } + if (maxwords & 1) { -+ /* ++ /* + * RNG will complain with an AE in the RNGISR + * if we don't complete the pairs of 32-bit reads + * to its 64-bit register based FIFO + */ -+ v = talitos_read(sc->sc_base_addr + ++ v = talitos_read(sc->sc_base_addr + + TALITOS_RNG_FIFO + rc*sizeof(u_int32_t)); + } + @@ -11247,18 +11347,18 @@ + v = talitos_read(sc->sc_base_addr + TALITOS_RNGRCR_HI); + v |= TALITOS_RNGRCR_HI_SR; + talitos_write(sc->sc_base_addr + TALITOS_RNGRCR_HI, v); -+ while ((talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI) ++ while ((talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI) + & TALITOS_RNGSR_HI_RD) == 0) + cpu_relax(); + /* + * we tell the RNG to start filling the RNG FIFO -+ * by writing the RNGDSR ++ * by writing the RNGDSR + */ + v = talitos_read(sc->sc_base_addr + TALITOS_RNGDSR_HI); + talitos_write(sc->sc_base_addr + TALITOS_RNGDSR_HI, v); + /* -+ * 64 bits of data will be pushed onto the FIFO every -+ * 256 SEC cycles until the FIFO is full. The RNG then ++ * 64 bits of data will be pushed onto the FIFO every ++ * 256 SEC cycles until the FIFO is full. The RNG then + * attempts to keep the FIFO full. + */ + v = talitos_read(sc->sc_base_addr + TALITOS_RNGISR_HI); @@ -11268,7 +11368,7 @@ + return; + } + /* -+ * n.b. we need to add a FIPS test here - if the RNG is going ++ * n.b. we need to add a FIPS test here - if the RNG is going + * to fail, it's going to fail at reset time + */ + return; @@ -11314,7 +11414,7 @@ + } + if (encini == NULL && macini == NULL) + return EINVAL; -+ if (encini) { ++ if (encini) { + /* validate key length */ + switch (encini->cri_alg) { + case CRYPTO_DES_CBC: @@ -11333,7 +11433,7 @@ + return EINVAL; + break; + default: -+ DPRINTF("UNKNOWN encini->cri_alg %d\n", ++ DPRINTF("UNKNOWN encini->cri_alg %d\n", + encini->cri_alg); + return EINVAL; + } @@ -11359,13 +11459,13 @@ + /* allocating session */ + sesn = sc->sc_nsessions; + ses = (struct talitos_session *) kmalloc( -+ (sesn + 1) * sizeof(struct talitos_session), ++ (sesn + 1) * sizeof(struct talitos_session), + SLAB_ATOMIC); + if (ses == NULL) + return ENOMEM; + memset(ses, 0, + (sesn + 1) * sizeof(struct talitos_session)); -+ memcpy(ses, sc->sc_sessions, ++ memcpy(ses, sc->sc_sessions, + sesn * sizeof(struct talitos_session)); + memset(sc->sc_sessions, 0, + sesn * sizeof(struct talitos_session)); @@ -11408,7 +11508,7 @@ + } + } + -+ /* really should make up a template td here, ++ /* really should make up a template td here, + * and only fill things like i/o and direction in process() */ + + /* assign session ID */ @@ -11439,10 +11539,10 @@ +} + +/* -+ * launch device processing - it will come back with done notification -+ * in the form of an interrupt and/or HDR_DONE_BITS in header ++ * launch device processing - it will come back with done notification ++ * in the form of an interrupt and/or HDR_DONE_BITS in header + */ -+static int ++static int +talitos_submit( + struct talitos_softc *sc, + struct talitos_desc *td, @@ -11451,9 +11551,9 @@ + u_int32_t v; + + v = dma_map_single(NULL, td, sizeof(*td), DMA_TO_DEVICE); -+ talitos_write(sc->sc_base_addr + ++ talitos_write(sc->sc_base_addr + + chsel*TALITOS_CH_OFFSET + TALITOS_CH_FF, 0); -+ talitos_write(sc->sc_base_addr + ++ talitos_write(sc->sc_base_addr + + chsel*TALITOS_CH_OFFSET + TALITOS_CH_FF_HI, v); + return 0; +} @@ -11469,7 +11569,7 @@ + struct talitos_desc *td; + unsigned long flags; + /* descriptor mappings */ -+ int hmac_key, hmac_data, cipher_iv, cipher_key, ++ int hmac_key, hmac_data, cipher_iv, cipher_key, + in_fifo, out_fifo, cipher_iv_out; + static int chsel = -1; + @@ -11485,7 +11585,7 @@ + + ses = &sc->sc_sessions[TALITOS_SESSION(crp->crp_sid)]; + -+ /* enter the channel scheduler */ ++ /* enter the channel scheduler */ + spin_lock_irqsave(&sc->sc_chnfifolock[sc->sc_num_channels], flags); + + /* reuse channel that already had/has requests for the required EU */ @@ -11497,19 +11597,19 @@ + /* + * haven't seen this algo the last sc_num_channels or more + * use round robin in this case -+ * nb: sc->sc_num_channels must be power of 2 ++ * nb: sc->sc_num_channels must be power of 2 + */ + chsel = (chsel + 1) & (sc->sc_num_channels - 1); + } else { + /* -+ * matches channel with same target execution unit; ++ * matches channel with same target execution unit; + * use same channel in this case + */ + chsel = i; + } + sc->sc_chnlastalg[chsel] = crp->crp_desc->crd_alg; + -+ /* release the channel scheduler lock */ ++ /* release the channel scheduler lock */ + spin_unlock_irqrestore(&sc->sc_chnfifolock[sc->sc_num_channels], flags); + + /* acquire the selected channel fifo lock */ @@ -11518,7 +11618,7 @@ + /* find and reserve next available descriptor-cryptop pair */ + for (i = 0; i < sc->sc_chfifo_len; i++) { + if (sc->sc_chnfifo[chsel][i].cf_desc.hdr == 0) { -+ /* ++ /* + * ensure correct descriptor formation by + * avoiding inadvertently setting "optional" entries + * e.g. not using "optional" dptr2 for MD/HMAC descs @@ -11526,7 +11626,7 @@ + memset(&sc->sc_chnfifo[chsel][i].cf_desc, + 0, sizeof(*td)); + /* reserve it with done notification request bit */ -+ sc->sc_chnfifo[chsel][i].cf_desc.hdr |= ++ sc->sc_chnfifo[chsel][i].cf_desc.hdr |= + TALITOS_DONE_NOTIFY; + break; + } @@ -11538,7 +11638,7 @@ + err = ERESTART; + goto errout; + } -+ ++ + td = &sc->sc_chnfifo[chsel][i].cf_desc; + sc->sc_chnfifo[chsel][i].cf_crp = crp; + @@ -11633,10 +11733,10 @@ + err = EINVAL; + goto errout; + } -+ td->ptr[in_fifo].ptr = dma_map_single(NULL, skb->data, ++ td->ptr[in_fifo].ptr = dma_map_single(NULL, skb->data, + skb->len, DMA_TO_DEVICE); + td->ptr[in_fifo].len = skb->len; -+ td->ptr[out_fifo].ptr = dma_map_single(NULL, skb->data, ++ td->ptr[out_fifo].ptr = dma_map_single(NULL, skb->data, + skb->len, DMA_TO_DEVICE); + td->ptr[out_fifo].len = skb->len; + td->ptr[hmac_data].ptr = dma_map_single(NULL, skb->data, @@ -11709,7 +11809,7 @@ + * copy both the header+IV. + */ + if (enccrd->crd_flags & CRD_F_ENCRYPT) { -+ td->hdr |= TALITOS_DIR_OUTBOUND; ++ td->hdr |= TALITOS_DIR_OUTBOUND; + if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) + iv = enccrd->crd_iv; + else @@ -11719,7 +11819,7 @@ + enccrd->crd_inject, ivsize, iv); + } + } else { -+ td->hdr |= TALITOS_DIR_INBOUND; ++ td->hdr |= TALITOS_DIR_INBOUND; + if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) { + iv = enccrd->crd_iv; + bcopy(enccrd->crd_iv, iv, ivsize); @@ -11729,7 +11829,7 @@ + enccrd->crd_inject, ivsize, iv); + } + } -+ td->ptr[cipher_iv].ptr = dma_map_single(NULL, iv, ivsize, ++ td->ptr[cipher_iv].ptr = dma_map_single(NULL, iv, ivsize, + DMA_TO_DEVICE); + td->ptr[cipher_iv].len = ivsize; + /* @@ -11747,16 +11847,16 @@ + | TALITOS_MODE1_MDEU_INIT + | TALITOS_MODE1_MDEU_PAD; + switch (maccrd->crd_alg) { -+ case CRYPTO_MD5: ++ case CRYPTO_MD5: + td->hdr |= TALITOS_MODE1_MDEU_MD5; + break; -+ case CRYPTO_MD5_HMAC: ++ case CRYPTO_MD5_HMAC: + td->hdr |= TALITOS_MODE1_MDEU_MD5_HMAC; + break; -+ case CRYPTO_SHA1: ++ case CRYPTO_SHA1: + td->hdr |= TALITOS_MODE1_MDEU_SHA1; + break; -+ case CRYPTO_SHA1_HMAC: ++ case CRYPTO_SHA1_HMAC: + td->hdr |= TALITOS_MODE1_MDEU_SHA1_HMAC; + break; + default: @@ -11773,7 +11873,7 @@ + * crypt data is the difference in the skips. + */ + /* ipsec only for now */ -+ td->ptr[hmac_key].ptr = dma_map_single(NULL, ++ td->ptr[hmac_key].ptr = dma_map_single(NULL, + ses->ses_hmac, ses->ses_hmac_len, DMA_TO_DEVICE); + td->ptr[hmac_key].len = ses->ses_hmac_len; + td->ptr[in_fifo].ptr += enccrd->crd_skip; @@ -11782,7 +11882,7 @@ + td->ptr[out_fifo].len = enccrd->crd_len; + /* bytes of HMAC to postpend to ciphertext */ + td->ptr[out_fifo].extent = ses->ses_mlen; -+ td->ptr[hmac_data].ptr += maccrd->crd_skip; ++ td->ptr[hmac_data].ptr += maccrd->crd_skip; + td->ptr[hmac_data].len = enccrd->crd_skip - maccrd->crd_skip; + } + if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT) { @@ -11796,22 +11896,22 @@ + | TALITOS_MODE0_MDEU_INIT + | TALITOS_MODE0_MDEU_PAD; + switch (maccrd->crd_alg) { -+ case CRYPTO_MD5: ++ case CRYPTO_MD5: + td->hdr |= TALITOS_MODE0_MDEU_MD5; + DPRINTF("MD5 ses %d ch %d len %d\n", -+ (u32)TALITOS_SESSION(crp->crp_sid), ++ (u32)TALITOS_SESSION(crp->crp_sid), + chsel, td->ptr[in_fifo].len); + break; -+ case CRYPTO_MD5_HMAC: ++ case CRYPTO_MD5_HMAC: + td->hdr |= TALITOS_MODE0_MDEU_MD5_HMAC; + break; -+ case CRYPTO_SHA1: ++ case CRYPTO_SHA1: + td->hdr |= TALITOS_MODE0_MDEU_SHA1; + DPRINTF("SHA1 ses %d ch %d len %d\n", -+ (u32)TALITOS_SESSION(crp->crp_sid), ++ (u32)TALITOS_SESSION(crp->crp_sid), + chsel, td->ptr[in_fifo].len); + break; -+ case CRYPTO_SHA1_HMAC: ++ case CRYPTO_SHA1_HMAC: + td->hdr |= TALITOS_MODE0_MDEU_SHA1_HMAC; + break; + default: @@ -11826,16 +11926,16 @@ + + if ((maccrd->crd_alg == CRYPTO_MD5_HMAC) || + (maccrd->crd_alg == CRYPTO_SHA1_HMAC)) { -+ td->ptr[hmac_key].ptr = dma_map_single(NULL, -+ ses->ses_hmac, ses->ses_hmac_len, ++ td->ptr[hmac_key].ptr = dma_map_single(NULL, ++ ses->ses_hmac, ses->ses_hmac_len, + DMA_TO_DEVICE); + td->ptr[hmac_key].len = ses->ses_hmac_len; + } -+ } ++ } + else { + /* using process key (session data has duplicate) */ -+ td->ptr[cipher_key].ptr = dma_map_single(NULL, -+ enccrd->crd_key, (enccrd->crd_klen + 7) / 8, ++ td->ptr[cipher_key].ptr = dma_map_single(NULL, ++ enccrd->crd_key, (enccrd->crd_klen + 7) / 8, + DMA_TO_DEVICE); + td->ptr[cipher_key].len = (enccrd->crd_klen + 7) / 8; + } @@ -11850,8 +11950,8 @@ + return err; +} + -+/* go through all channels descriptors, notifying OCF what has -+ * _and_hasn't_ successfully completed and reset the device ++/* go through all channels descriptors, notifying OCF what has ++ * _and_hasn't_ successfully completed and reset the device + * (otherwise it's up to decoding desc hdrs!) + */ +static void talitos_errorprocessing(struct talitos_softc *sc) @@ -11863,19 +11963,19 @@ + spin_lock_irqsave(&sc->sc_chnfifolock[sc->sc_num_channels], flags); + + if (debug) dump_talitos_status(sc); -+ /* go through descriptors, try and salvage those successfully done, ++ /* go through descriptors, try and salvage those successfully done, + * and EIO those that weren't + */ + for (i = 0; i < sc->sc_num_channels; i++) { + spin_lock_irqsave(&sc->sc_chnfifolock[i], flags); + for (j = 0; j < sc->sc_chfifo_len; j++) { + if (sc->sc_chnfifo[i][j].cf_desc.hdr) { -+ if ((sc->sc_chnfifo[i][j].cf_desc.hdr -+ & TALITOS_HDR_DONE_BITS) ++ if ((sc->sc_chnfifo[i][j].cf_desc.hdr ++ & TALITOS_HDR_DONE_BITS) + != TALITOS_HDR_DONE_BITS) { + /* this one didn't finish */ + /* signify in crp->etype */ -+ sc->sc_chnfifo[i][j].cf_crp->crp_etype ++ sc->sc_chnfifo[i][j].cf_crp->crp_etype + = EIO; + } + } else @@ -11918,8 +12018,8 @@ + spin_lock_irqsave(&sc->sc_chnfifolock[i], flags); + for (j = 0; j < sc->sc_chfifo_len; j++) { + /* descriptor has done bits set? */ -+ if ((sc->sc_chnfifo[i][j].cf_desc.hdr -+ & TALITOS_HDR_DONE_BITS) ++ if ((sc->sc_chnfifo[i][j].cf_desc.hdr ++ & TALITOS_HDR_DONE_BITS) + == TALITOS_HDR_DONE_BITS) { + /* notify ocf */ + crypto_done(sc->sc_chnfifo[i][j].cf_crp); @@ -11947,7 +12047,7 @@ +{ + struct talitos_softc *sc = arg; + u_int32_t v, v_hi; -+ ++ + /* ack */ + v = talitos_read(sc->sc_base_addr + TALITOS_ISR); + v_hi = talitos_read(sc->sc_base_addr + TALITOS_ISR_HI); @@ -11979,11 +12079,11 @@ + + /* init all channels */ + for (i = 0; i < sc->sc_num_channels; i++) { -+ v = talitos_read(sc->sc_base_addr + ++ v = talitos_read(sc->sc_base_addr + + i*TALITOS_CH_OFFSET + TALITOS_CH_CCCR_HI); + v |= TALITOS_CH_CCCR_HI_CDWE + | TALITOS_CH_CCCR_HI_CDIE; /* invoke interrupt if done */ -+ talitos_write(sc->sc_base_addr + ++ talitos_write(sc->sc_base_addr + + i*TALITOS_CH_OFFSET + TALITOS_CH_CCCR_HI, v); + } + /* enable all interrupts */ @@ -12028,13 +12128,13 @@ + + /* + * Master reset -+ * errata documentation: warning: certain SEC interrupts -+ * are not fully cleared by writing the MCR:SWR bit, -+ * set bit twice to completely reset ++ * errata documentation: warning: certain SEC interrupts ++ * are not fully cleared by writing the MCR:SWR bit, ++ * set bit twice to completely reset + */ + talitos_reset_device_master(sc); /* once */ + talitos_reset_device_master(sc); /* and once again */ -+ ++ + /* reset all channels */ + for (i = 0; i < sc->sc_num_channels; i++) { + v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + @@ -12104,7 +12204,7 @@ + rc = request_irq(sc->sc_irq, talitos_intr, 0, + device_get_nameunit(sc->sc_cdev), sc); + if (rc) { -+ printk(KERN_ERR "%s: failed to hook irq %d\n", ++ printk(KERN_ERR "%s: failed to hook irq %d\n", + device_get_nameunit(sc->sc_cdev), sc->sc_irq); + sc->sc_irq = -1; + goto out; @@ -12166,17 +12266,17 @@ + memset(sc->sc_chnlastalg, 0, sc->sc_num_channels * sizeof(int)); + + sc->sc_chnfifo = (struct desc_cryptop_pair **) kmalloc( -+ sc->sc_num_channels * sizeof(struct desc_cryptop_pair *), ++ sc->sc_num_channels * sizeof(struct desc_cryptop_pair *), + GFP_KERNEL); + if (!sc->sc_chnfifo) + goto out; + for (i = 0; i < sc->sc_num_channels; i++) { + sc->sc_chnfifo[i] = (struct desc_cryptop_pair *) kmalloc( -+ sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair), ++ sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair), + GFP_KERNEL); + if (!sc->sc_chnfifo[i]) + goto out; -+ memset(sc->sc_chnfifo[i], 0, ++ memset(sc->sc_chnfifo[i], 0, + sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair)); + } + @@ -12436,7 +12536,7 @@ +#define TALITOS_ID_SEC_2_1 0x40 /* cross ref with IP block revision reg */ + +/* -+ * following num_channels, channel-fifo-depth, exec-unit-mask, and ++ * following num_channels, channel-fifo-depth, exec-unit-mask, and + * descriptor-types-mask are for forward-compatibility with openfirmware + * flat device trees + */ @@ -12464,11 +12564,11 @@ +#define TALITOS_CHFIFOLEN_SEC_2_1 24 +#define TALITOS_CHFIFOLEN_SEC_2_4 24 + -+/* ++/* + * exec-unit-mask : The bitmask representing what Execution Units (EUs) -+ * are available. EU information should be encoded following the SEC's ++ * are available. EU information should be encoded following the SEC's + * EU_SEL0 bitfield documentation, i.e. as follows: -+ * ++ * + * bit 31 = set if SEC permits no-EU selection (should be always set) + * bit 30 = set if SEC has the ARC4 EU (AFEU) + * bit 29 = set if SEC has the des/3des EU (DEU) @@ -12477,7 +12577,7 @@ + * bit 26 = set if SEC has the public key EU (PKEU) + * bit 25 = set if SEC has the aes EU (AESU) + * bit 24 = set if SEC has the Kasumi EU (KEU) -+ * ++ * + */ +#define TALITOS_HAS_EU_NONE (1<<0) +#define TALITOS_HAS_EU_AFEU (1<<1) @@ -12498,8 +12598,8 @@ + +/* + * descriptor-types-mask : The bitmask representing what descriptors -+ * are available. Descriptor type information should be encoded -+ * following the SEC's Descriptor Header Dword DESC_TYPE field ++ * are available. Descriptor type information should be encoded ++ * following the SEC's Descriptor Header Dword DESC_TYPE field + * documentation, i.e. as follows: + * + * bit 0 = set if SEC supports the aesu_ctr_nonsnoop desc. type @@ -12525,7 +12625,7 @@ +#define TALITOS_HAS_DESCTYPES_SEC_2_0 0x01010ebf +#define TALITOS_HAS_DESCTYPES_SEC_2_1 0x012b0ebf + -+/* ++/* + * a TALITOS_xxx_HI address points to the low data bits (32-63) of the register + */ + @@ -12564,7 +12664,7 @@ +#define TALITOS_CH_FF_HI 0x114c /* Fetch FIFO's FETCH_ADRS */ +#define TALITOS_CH_CDPR 0x1140 /* Crypto-Channel Pointer Status Reg */ +#define TALITOS_CH_CDPR_HI 0x1144 /* Crypto-Channel Pointer Status Reg */ -+#define TALITOS_CH_DESCBUF 0x1180 /* (thru 11bf) Crypto-Channel ++#define TALITOS_CH_DESCBUF 0x1180 /* (thru 11bf) Crypto-Channel + * Descriptor Buffer (debug) */ + +/* execution unit register offset addresses and bits */ @@ -12986,7 +13086,7 @@ +#endif + } + } -+ ++ + kfree(buf); + +bad_alloc: @@ -13963,7 +14063,7 @@ + IX_MBUF_MLEN(&q->ixp_q_mbuf) = IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) = + ((IX_MBUF_MLEN(&q->ixp_q_mbuf) * 8) + 72 + 511) / 8; + tbuf = kmalloc(IX_MBUF_MLEN(&q->ixp_q_mbuf), SLAB_ATOMIC); -+ ++ + if (IX_MBUF_MDATA(&q->ixp_q_mbuf) == NULL) { + printk("ixp: kmalloc(%u, SLAB_ATOMIC) failed\n", + IX_MBUF_MLEN(&q->ixp_q_mbuf)); @@ -14530,7 +14630,7 @@ + &q->pkq_op, + ixp_kperform_cb, + &q->pkq_result); -+ ++ + if (status == IX_CRYPTO_ACC_STATUS_SUCCESS) { + dprintk("%s() - ixCryptoAccPkeEauPerform SUCCESS\n", __FUNCTION__); + return; /* callback will return here for callback */ @@ -14827,7 +14927,7 @@ +#include +#include +#include -+#include ++#include +#include +#include +#include @@ -14907,7 +15007,7 @@ + int hid = crid & ~(CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE); + int typ = crid & (CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE); + int caps = 0; -+ ++ + /* if the user hasn't selected a driver, then just call newsession */ + if (hid == 0 && typ != 0) + return 0; @@ -14919,7 +15019,7 @@ + dprintk("%s: hid=%x typ=%x not matched\n", __FUNCTION__, hid, typ); + return EINVAL; + } -+ ++ + /* the user didn't specify SW or HW, so the driver is ok */ + if (typ == 0) + return 0; @@ -15256,7 +15356,7 @@ + } while ((krp->krp_flags & CRYPTO_KF_DONE) == 0); + + dprintk("%s finished WAITING error=%d\n", __FUNCTION__, error); -+ ++ + kop->crk_crid = krp->krp_crid; /* device that did the work */ + if (krp->krp_status != 0) { + error = krp->krp_status; @@ -15330,7 +15430,7 @@ + } + return (0); +} -+ ++ +static struct csession * +cseadd(struct fcrypt *fcr, struct csession *cse) +{ @@ -16008,7 +16108,7 @@ + int mackeylen; /* mac key */ + caddr_t mackey; + -+ u_int32_t ses; /* returns: session # */ ++ u_int32_t ses; /* returns: session # */ +}; + +struct session2_op { @@ -16020,7 +16120,7 @@ + int mackeylen; /* mac key */ + caddr_t mackey; + -+ u_int32_t ses; /* returns: session # */ ++ u_int32_t ses; /* returns: session # */ + int crid; /* driver id + flags (rw) */ + int pad[4]; /* for future expansion */ +}; @@ -16310,7 +16410,7 @@ + * since it does no crypto at all. + * + * Written by David McCullough -+ * Copyright (C) 2006-2007 David McCullough ++ * Copyright (C) 2006-2007 David McCullough + * + * LICENSE TERMS + * @@ -17087,7 +17187,7 @@ + offset_in_page(uiop->uio_iov[sg_num].iov_base+skip)); + sg_len += len; + skip = 0; -+ } else ++ } else + skip -= uiop->uio_iov[sg_num].iov_len; + } + } else { @@ -17104,7 +17204,7 @@ + case SW_TYPE_BLKCIPHER: { + unsigned char iv[EALG_MAX_BLOCK_LEN]; + unsigned char *ivp = iv; -+ int ivsize = ++ int ivsize = + crypto_blkcipher_ivsize(crypto_blkcipher_cast(sw->sw_tfm)); + struct blkcipher_desc desc; + @@ -17205,7 +17305,7 @@ + sw->u.hmac.sw_klen); + crypto_hash_digest(&desc, sg, sg_len, result); +#endif /* #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) */ -+ ++ + } else { /* SW_TYPE_HASH */ + crypto_hash_digest(&desc, sg, sg_len, result); + } @@ -17314,7 +17414,7 @@ + + for (i = CRYPTO_ALGORITHM_MIN; i <= CRYPTO_ALGORITHM_MAX; ++i) + { -+ ++ + algo = crypto_details[i].alg_name; + if (!algo || !*algo) + { @@ -17769,7 +17869,7 @@ +extern int rndtest_buf(unsigned char *buf); --- /dev/null +++ b/crypto/ocf/ocf-compat.h -@@ -0,0 +1,268 @@ +@@ -0,0 +1,270 @@ +#ifndef _BSD_COMPAT_H_ +#define _BSD_COMPAT_H_ 1 +/****************************************************************************/ @@ -17895,7 +17995,9 @@ + +#endif + -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) ++#include ++#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) +#define files_fdtable(files) (files) +#endif + @@ -18039,6 +18141,4029 @@ +/****************************************************************************/ +#endif /* _BSD_COMPAT_H_ */ --- /dev/null ++++ b/crypto/ocf/ep80579/icp_asym.c +@@ -0,0 +1,1375 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++#include "icp_ocf.h" ++ ++/*The following define values (containing the word 'INDEX') are used to find ++the index of each input buffer of the crypto_kop struct (see OCF cryptodev.h). ++These values were found through analysis of the OCF OpenSSL patch. If the ++calling program uses different input buffer positions, these defines will have ++to be changed.*/ ++ ++/*DIFFIE HELLMAN buffer index values*/ ++#define ICP_DH_KRP_PARAM_PRIME_INDEX (0) ++#define ICP_DH_KRP_PARAM_BASE_INDEX (1) ++#define ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX (2) ++#define ICP_DH_KRP_PARAM_RESULT_INDEX (3) ++ ++/*MOD EXP buffer index values*/ ++#define ICP_MOD_EXP_KRP_PARAM_BASE_INDEX (0) ++#define ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX (1) ++#define ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX (2) ++#define ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX (3) ++ ++#define SINGLE_BYTE_VALUE (4) ++ ++/*MOD EXP CRT buffer index values*/ ++#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX (0) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX (1) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX (2) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX (3) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX (4) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX (5) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX (6) ++ ++/*DSA sign buffer index values*/ ++#define ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX (0) ++#define ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX (1) ++#define ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX (2) ++#define ICP_DSA_SIGN_KRP_PARAM_G_INDEX (3) ++#define ICP_DSA_SIGN_KRP_PARAM_X_INDEX (4) ++#define ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX (5) ++#define ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX (6) ++ ++/*DSA verify buffer index values*/ ++#define ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX (0) ++#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX (1) ++#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX (2) ++#define ICP_DSA_VERIFY_KRP_PARAM_G_INDEX (3) ++#define ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX (4) ++#define ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX (5) ++#define ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX (6) ++ ++/*DSA sign prime Q vs random number K size check values*/ ++#define DONT_RUN_LESS_THAN_CHECK (0) ++#define FAIL_A_IS_GREATER_THAN_B (1) ++#define FAIL_A_IS_EQUAL_TO_B (1) ++#define SUCCESS_A_IS_LESS_THAN_B (0) ++#define DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS (500) ++ ++/* We need to set a cryptokp success value just in case it is set or allocated ++ and not set to zero outside of this module */ ++#define CRYPTO_OP_SUCCESS (0) ++ ++static int icp_ocfDrvDHComputeKey(struct cryptkop *krp); ++ ++static int icp_ocfDrvModExp(struct cryptkop *krp); ++ ++static int icp_ocfDrvModExpCRT(struct cryptkop *krp); ++ ++static int ++icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck); ++ ++static int icp_ocfDrvDsaSign(struct cryptkop *krp); ++ ++static int icp_ocfDrvDsaVerify(struct cryptkop *krp); ++ ++static void ++icp_ocfDrvDhP1CallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pLocalOctetStringPV); ++ ++static void ++icp_ocfDrvModExpCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pResult); ++ ++static void ++icp_ocfDrvModExpCRTCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pOutputData); ++ ++static void ++icp_ocfDrvDsaVerifyCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaBoolean verifyStatus); ++ ++static void ++icp_ocfDrvDsaRSSignCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, ++ CpaBoolean protocolStatus, ++ CpaFlatBuffer * pR, CpaFlatBuffer * pS); ++ ++/* Name : icp_ocfDrvPkeProcess ++ * ++ * Description : This function will choose which PKE process to follow ++ * based on the input arguments ++ */ ++int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ ++ if (NULL == krp) { ++ DPRINTK("%s(): Invalid input parameters, cryptkop = %p\n", ++ __FUNCTION__, krp); ++ return EINVAL; ++ } ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ switch (krp->krp_op) { ++ case CRK_DH_COMPUTE_KEY: ++ DPRINTK("%s() doing DH_COMPUTE_KEY\n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDHComputeKey(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDHComputeKey failed " ++ "(%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_MOD_EXP: ++ DPRINTK("%s() doing MOD_EXP \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvModExp(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvModExp failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_MOD_EXP_CRT: ++ DPRINTK("%s() doing MOD_EXP_CRT \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvModExpCRT(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvModExpCRT " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_DSA_SIGN: ++ DPRINTK("%s() doing DSA_SIGN \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDsaSign(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDsaSign " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_DSA_VERIFY: ++ DPRINTK("%s() doing DSA_VERIFY \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDsaVerify(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDsaVerify " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ default: ++ EPRINTK("%s(): Asymettric function not " ++ "supported (%d).\n", __FUNCTION__, krp->krp_op); ++ krp->krp_status = EOPNOTSUPP; ++ return EOPNOTSUPP; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvSwapBytes ++ * ++ * Description : This function is used to swap the byte order of a buffer. ++ * It has been seen that in general we are passed little endian byte order ++ * buffers, but LAC only accepts big endian byte order buffers. ++ */ ++static void inline ++icp_ocfDrvSwapBytes(u_int8_t * num, u_int32_t buff_len_bytes) ++{ ++ ++ int i; ++ u_int8_t *end_ptr; ++ u_int8_t hold_val; ++ ++ end_ptr = num + (buff_len_bytes - 1); ++ buff_len_bytes = buff_len_bytes >> 1; ++ for (i = 0; i < buff_len_bytes; i++) { ++ hold_val = *num; ++ *num = *end_ptr; ++ num++; ++ *end_ptr = hold_val; ++ end_ptr--; ++ } ++} ++ ++/* Name : icp_ocfDrvDHComputeKey ++ * ++ * Description : This function will map Diffie Hellman calls from OCF ++ * to the LAC API. OCF uses this function for Diffie Hellman Phase1 and ++ * Phase2. LAC has a separate Diffie Hellman Phase2 call, however both phases ++ * break down to a modular exponentiation. ++ */ ++static int icp_ocfDrvDHComputeKey(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ void *callbackTag = NULL; ++ CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL; ++ CpaFlatBuffer *pLocalOctetStringPV = NULL; ++ uint32_t dh_prime_len_bytes = 0, dh_prime_len_bits = 0; ++ ++ /* Input checks - check prime is a multiple of 8 bits to allow for ++ allocation later */ ++ dh_prime_len_bits = ++ (krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_nbits); ++ ++ /* LAC can reject prime lengths based on prime key sizes, we just ++ need to make sure we can allocate space for the base and ++ exponent buffers correctly */ ++ if ((dh_prime_len_bits % NUM_BITS_IN_BYTE) != 0) { ++ APRINTK("%s(): Warning Prime number buffer size is not a " ++ "multiple of 8 bits\n", __FUNCTION__); ++ } ++ ++ /* Result storage space should be the same size as the prime as this ++ value can take up the same amount of storage space */ ++ if (dh_prime_len_bits != ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits) { ++ DPRINTK("%s(): Return Buffer must be the same size " ++ "as the Prime buffer\n", __FUNCTION__); ++ krp->krp_status = EINVAL; ++ return EINVAL; ++ } ++ /* Switch to size in bytes */ ++ BITS_TO_BYTES(dh_prime_len_bytes, dh_prime_len_bits); ++ ++ callbackTag = krp; ++ ++ pPhase1OpData = kmem_cache_zalloc(drvDH_zone, GFP_KERNEL); ++ if (NULL == pPhase1OpData) { ++ APRINTK("%s():Failed to get memory for key gen data\n", ++ __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pLocalOctetStringPV = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pLocalOctetStringPV) { ++ APRINTK("%s():Failed to get memory for pLocalOctetStringPV\n", ++ __FUNCTION__); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ pPhase1OpData->primeP.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_p; ++ ++ pPhase1OpData->primeP.dataLenInBytes = dh_prime_len_bytes; ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->primeP.pData, dh_prime_len_bytes); ++ ++ pPhase1OpData->baseG.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pPhase1OpData->baseG.dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->baseG.pData, ++ pPhase1OpData->baseG.dataLenInBytes); ++ ++ pPhase1OpData->privateValueX.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pPhase1OpData->privateValueX.dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->privateValueX.pData, ++ pPhase1OpData->privateValueX.dataLenInBytes); ++ ++ /* Output parameters */ ++ pLocalOctetStringPV->pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pLocalOctetStringPV->dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits); ++ ++ lacStatus = cpaCyDhKeyGenPhase1(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDhP1CallBack, ++ callbackTag, pPhase1OpData, ++ pLocalOctetStringPV); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DH Phase 1 Key Gen failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvModExp ++ * ++ * Description : This function will map ordinary Modular Exponentiation calls ++ * from OCF to the LAC API. ++ * ++ */ ++static int icp_ocfDrvModExp(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ void *callbackTag = NULL; ++ CpaCyLnModExpOpData *pModExpOpData = NULL; ++ CpaFlatBuffer *pResult = NULL; ++ ++ if ((krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits % ++ NUM_BITS_IN_BYTE) != 0) { ++ DPRINTK("%s(): Warning - modulus buffer size (%d) is not a " ++ "multiple of 8 bits\n", __FUNCTION__, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX]. ++ crp_nbits); ++ } ++ ++ /* Result storage space should be the same size as the prime as this ++ value can take up the same amount of storage space */ ++ if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits > ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_nbits) { ++ APRINTK("%s(): Return Buffer size must be the same or" ++ " greater than the Modulus buffer\n", __FUNCTION__); ++ krp->krp_status = EINVAL; ++ return EINVAL; ++ } ++ ++ callbackTag = krp; ++ ++ pModExpOpData = kmem_cache_zalloc(drvLnModExp_zone, GFP_KERNEL); ++ if (NULL == pModExpOpData) { ++ APRINTK("%s():Failed to get memory for key gen data\n", ++ __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pResult = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pResult) { ++ APRINTK("%s():Failed to get memory for ModExp result\n", ++ __FUNCTION__); ++ kmem_cache_free(drvLnModExp_zone, pModExpOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ pModExpOpData->modulus.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->modulus.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pModExpOpData->modulus.pData, ++ pModExpOpData->modulus.dataLenInBytes); ++ ++ /*OCF patch to Openswan Pluto regularly sends the base value as 2 ++ bits in size. In this case, it has been found it is better to ++ use the base size memory space as the input buffer (if the number ++ is in bits is less than a byte, the number of bits is the input ++ value) */ ++ if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits < ++ NUM_BITS_IN_BYTE) { ++ DPRINTK("%s : base is small (%d)\n", __FUNCTION__, krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits); ++ pModExpOpData->base.dataLenInBytes = SINGLE_BYTE_VALUE; ++ pModExpOpData->base.pData = ++ (uint8_t *) & (krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits); ++ *((uint32_t *) pModExpOpData->base.pData) = ++ htonl(*((uint32_t *) pModExpOpData->base.pData)); ++ ++ } else { ++ ++ DPRINTK("%s : base is big (%d)\n", __FUNCTION__, krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits); ++ pModExpOpData->base.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->base.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(pModExpOpData->base.pData, ++ pModExpOpData->base.dataLenInBytes); ++ } ++ ++ pModExpOpData->exponent.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->exponent.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pModExpOpData->exponent.pData, ++ pModExpOpData->exponent.dataLenInBytes); ++ /* Output parameters */ ++ pResult->pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_p, ++ BITS_TO_BYTES(pResult->dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyLnModExp(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvModExpCallBack, ++ callbackTag, pModExpOpData, pResult); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): Mod Exp Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pResult); ++ kmem_cache_free(drvLnModExp_zone, pModExpOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvModExpCRT ++ * ++ * Description : This function will map ordinary Modular Exponentiation Chinese ++ * Remainder Theorem implementaion calls from OCF to the LAC API. ++ * ++ * Note : Mod Exp CRT for this driver is accelerated through LAC RSA type 2 ++ * decrypt operation. Therefore P and Q input values must always be prime ++ * numbers. Although basic primality checks are done in LAC, it is up to the ++ * user to do any correct prime number checking before passing the inputs. ++ */ ++ ++static int icp_ocfDrvModExpCRT(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyRsaDecryptOpData *rsaDecryptOpData = NULL; ++ void *callbackTag = NULL; ++ CpaFlatBuffer *pOutputData = NULL; ++ ++ /*Parameter input checks are all done by LAC, no need to repeat ++ them here. */ ++ callbackTag = krp; ++ ++ rsaDecryptOpData = kmem_cache_zalloc(drvRSADecrypt_zone, GFP_KERNEL); ++ if (NULL == rsaDecryptOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for MOD EXP CRT Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey ++ = kmem_cache_zalloc(drvRSAPrivateKey_zone, GFP_KERNEL); ++ if (NULL == rsaDecryptOpData->pRecipientPrivateKey) { ++ APRINTK("%s():Failed to get memory for MOD EXP CRT" ++ " private key values struct\n", __FUNCTION__); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ version = CPA_CY_RSA_VERSION_TWO_PRIME; ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2; ++ ++ pOutputData = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pOutputData) { ++ APRINTK("%s():Failed to get memory" ++ " for MOD EXP CRT output data\n", __FUNCTION__); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ rsaDecryptOpData->pRecipientPrivateKey); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ version = CPA_CY_RSA_VERSION_TWO_PRIME; ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2; ++ ++ /* Link parameters */ ++ rsaDecryptOpData->inputData.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->inputData.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->inputData.pData, ++ rsaDecryptOpData->inputData.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime1P.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ prime1P.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime1P.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime1P.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime2Q.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ prime2Q.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime2Q.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime2Q.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ exponent1Dp.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.dataLenInBytes); ++ ++ /* Output Parameter */ ++ pOutputData->pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pOutputData->dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyRsaDecrypt(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvModExpCRTCallBack, ++ callbackTag, rsaDecryptOpData, pOutputData); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): Mod Exp CRT Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pOutputData); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ rsaDecryptOpData->pRecipientPrivateKey); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvCheckALessThanB ++ * ++ * Description : This function will check whether the first argument is less ++ * than the second. It is used to check whether the DSA RS sign Random K ++ * value is less than the Prime Q value (as defined in the specification) ++ * ++ */ ++static int ++icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck) ++{ ++ ++ uint8_t *MSB_K = pK->pData; ++ uint8_t *MSB_Q = pQ->pData; ++ uint32_t buffer_lengths_in_bytes = pQ->dataLenInBytes; ++ ++ if (DONT_RUN_LESS_THAN_CHECK == *doCheck) { ++ return FAIL_A_IS_GREATER_THAN_B; ++ } ++ ++/*Check MSBs ++if A == B, check next MSB ++if A > B, return A_IS_GREATER_THAN_B ++if A < B, return A_IS_LESS_THAN_B (success) ++*/ ++ while (*MSB_K == *MSB_Q) { ++ MSB_K++; ++ MSB_Q++; ++ ++ buffer_lengths_in_bytes--; ++ if (0 == buffer_lengths_in_bytes) { ++ DPRINTK("%s() Buffers have equal value!!\n", ++ __FUNCTION__); ++ return FAIL_A_IS_EQUAL_TO_B; ++ } ++ ++ } ++ ++ if (*MSB_K < *MSB_Q) { ++ return SUCCESS_A_IS_LESS_THAN_B; ++ } else { ++ return FAIL_A_IS_GREATER_THAN_B; ++ } ++ ++} ++ ++/* Name : icp_ocfDrvDsaSign ++ * ++ * Description : This function will map DSA RS Sign from OCF to the LAC API. ++ * ++ * NOTE: From looking at OCF patch to OpenSSL and even the number of input ++ * parameters, OCF expects us to generate the random seed value. This value ++ * is generated and passed to LAC, however the number is discared in the ++ * callback and not returned to the user. ++ */ ++static int icp_ocfDrvDsaSign(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyDsaRSSignOpData *dsaRsSignOpData = NULL; ++ void *callbackTag = NULL; ++ CpaCyRandGenOpData randGenOpData; ++ int primeQSizeInBytes = 0; ++ int doCheck = 0; ++ CpaFlatBuffer randData; ++ CpaBoolean protocolStatus = CPA_FALSE; ++ CpaFlatBuffer *pR = NULL; ++ CpaFlatBuffer *pS = NULL; ++ ++ callbackTag = krp; ++ ++ BITS_TO_BYTES(primeQSizeInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ if (DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES != primeQSizeInBytes) { ++ APRINTK("%s(): DSA PRIME Q size not equal to the " ++ "FIPS defined 20bytes, = %d\n", ++ __FUNCTION__, primeQSizeInBytes); ++ krp->krp_status = EDOM; ++ return EDOM; ++ } ++ ++ dsaRsSignOpData = kmem_cache_zalloc(drvDSARSSign_zone, GFP_KERNEL); ++ if (NULL == dsaRsSignOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA RS Sign Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ dsaRsSignOpData->K.pData = ++ kmem_cache_alloc(drvDSARSSignKValue_zone, GFP_ATOMIC); ++ ++ if (NULL == dsaRsSignOpData->K.pData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA RS Sign Op Random value\n", __FUNCTION__); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pR = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pR) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA signature R\n", __FUNCTION__); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pS = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pS) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA signature S\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /*link prime number parameter for ease of processing */ ++ dsaRsSignOpData->P.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->P.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->P.pData, ++ dsaRsSignOpData->P.dataLenInBytes); ++ ++ dsaRsSignOpData->Q.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->Q.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->Q.pData, ++ dsaRsSignOpData->Q.dataLenInBytes); ++ ++ /*generate random number with equal buffer size to Prime value Q, ++ but value less than Q */ ++ dsaRsSignOpData->K.dataLenInBytes = dsaRsSignOpData->Q.dataLenInBytes; ++ ++ randGenOpData.generateBits = CPA_TRUE; ++ randGenOpData.lenInBytes = dsaRsSignOpData->K.dataLenInBytes; ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer(dsaRsSignOpData->K.pData, ++ dsaRsSignOpData->K.dataLenInBytes, ++ &randData); ++ ++ doCheck = 0; ++ while (icp_ocfDrvCheckALessThanB(&(dsaRsSignOpData->K), ++ &(dsaRsSignOpData->Q), &doCheck)) { ++ ++ if (CPA_STATUS_SUCCESS ++ != cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, &randGenOpData, &randData)) { ++ APRINTK("%s(): ERROR - Failed to generate DSA RS Sign K" ++ "value\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = EAGAIN; ++ return EAGAIN; ++ } ++ ++ doCheck++; ++ if (DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS == doCheck) { ++ APRINTK("%s(): ERROR - Failed to find DSA RS Sign K " ++ "value less than Q value\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = EAGAIN; ++ return EAGAIN; ++ } ++ ++ } ++ /*Rand Data - no need to swap bytes for pK */ ++ ++ /* Link parameters */ ++ dsaRsSignOpData->G.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->G.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->G.pData, ++ dsaRsSignOpData->G.dataLenInBytes); ++ ++ dsaRsSignOpData->X.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->X.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_nbits); ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->X.pData, ++ dsaRsSignOpData->X.dataLenInBytes); ++ ++ dsaRsSignOpData->M.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->M.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->M.pData, ++ dsaRsSignOpData->M.dataLenInBytes); ++ ++ /* Output Parameters */ ++ pS->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pS->dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX]. ++ crp_nbits); ++ ++ pR->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pR->dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyDsaSignRS(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDsaRSSignCallBack, ++ callbackTag, dsaRsSignOpData, ++ &protocolStatus, pR, pS); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DSA RS Sign Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvDsaVerify ++ * ++ * Description : This function will map DSA RS Verify from OCF to the LAC API. ++ * ++ */ ++static int icp_ocfDrvDsaVerify(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyDsaVerifyOpData *dsaVerifyOpData = NULL; ++ void *callbackTag = NULL; ++ CpaBoolean verifyStatus = CPA_FALSE; ++ ++ callbackTag = krp; ++ ++ dsaVerifyOpData = kmem_cache_zalloc(drvDSAVerify_zone, GFP_KERNEL); ++ if (NULL == dsaVerifyOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA Verify Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ dsaVerifyOpData->P.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->P.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->P.pData, ++ dsaVerifyOpData->P.dataLenInBytes); ++ ++ dsaVerifyOpData->Q.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->Q.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->Q.pData, ++ dsaVerifyOpData->Q.dataLenInBytes); ++ ++ dsaVerifyOpData->G.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->G.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->G.pData, ++ dsaVerifyOpData->G.dataLenInBytes); ++ ++ dsaVerifyOpData->Y.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->Y.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->Y.pData, ++ dsaVerifyOpData->Y.dataLenInBytes); ++ ++ dsaVerifyOpData->M.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->M.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->M.pData, ++ dsaVerifyOpData->M.dataLenInBytes); ++ ++ dsaVerifyOpData->R.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->R.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->R.pData, ++ dsaVerifyOpData->R.dataLenInBytes); ++ ++ dsaVerifyOpData->S.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->S.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->S.pData, ++ dsaVerifyOpData->S.dataLenInBytes); ++ ++ lacStatus = cpaCyDsaVerify(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDsaVerifyCallBack, ++ callbackTag, dsaVerifyOpData, &verifyStatus); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DSA Verify Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ kmem_cache_free(drvDSAVerify_zone, dsaVerifyOpData); ++ krp->krp_status = ECANCELED; ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvReadRandom ++ * ++ * Description : This function will map RNG functionality calls from OCF ++ * to the LAC API. ++ */ ++int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyRandGenOpData randGenOpData; ++ CpaFlatBuffer randData; ++ ++ if (NULL == buf) { ++ APRINTK("%s(): Invalid input parameters\n", __FUNCTION__); ++ return EINVAL; ++ } ++ ++ /* maxwords here is number of integers to generate data for */ ++ randGenOpData.generateBits = CPA_TRUE; ++ ++ randGenOpData.lenInBytes = maxwords * sizeof(uint32_t); ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) buf, ++ randGenOpData.lenInBytes, &randData); ++ ++ lacStatus = cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, &randGenOpData, &randData); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_LacSymRandGen failed (%d). \n", ++ __FUNCTION__, lacStatus); ++ return RETURN_RAND_NUM_GEN_FAILED; ++ } ++ ++ return randGenOpData.lenInBytes / sizeof(uint32_t); ++} ++ ++/* Name : icp_ocfDrvDhP1Callback ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DH operation. ++ */ ++static void ++icp_ocfDrvDhP1CallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pLocalOctetStringPV) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pPhase1OpData = (CpaCyDhPhase1KeyGenOpData *) pOpData; ++ ++ if (NULL == pLocalOctetStringPV) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "pLocalOctetStringPV Data is NULL\n", __FUNCTION__); ++ memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData)); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): Diffie Hellman Phase1 Key Gen failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pLocalOctetStringPV->pData, ++ pLocalOctetStringPV->dataLenInBytes); ++ ++ icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV); ++ memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData)); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvModExpCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the Mod Exp operation. ++ */ ++static void ++icp_ocfDrvModExpCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpdata, CpaFlatBuffer * pResult) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyLnModExpOpData *pLnModExpOpData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpdata) { ++ DPRINTK("%s(): Invalid Mod Exp input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pLnModExpOpData = (CpaCyLnModExpOpData *) pOpdata; ++ ++ if (NULL == pResult) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "pResult data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData)); ++ kmem_cache_free(drvLnModExp_zone, pLnModExpOpData); ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): LAC Mod Exp Operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pResult->pData, pResult->dataLenInBytes); ++ ++ /*switch base size value back to original */ ++ if (pLnModExpOpData->base.pData == ++ (uint8_t *) & (krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits)) { ++ *((uint32_t *) pLnModExpOpData->base.pData) = ++ ntohl(*((uint32_t *) pLnModExpOpData->base.pData)); ++ } ++ icp_ocfDrvFreeFlatBuffer(pResult); ++ memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData)); ++ kmem_cache_free(drvLnModExp_zone, pLnModExpOpData); ++ ++ crypto_kdone(krp); ++ ++ return; ++ ++} ++ ++/* Name : icp_ocfDrvModExpCRTCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the Mod Exp CRT operation. ++ */ ++static void ++icp_ocfDrvModExpCRTCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pOutputData) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyRsaDecryptOpData *pDecryptData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pDecryptData = (CpaCyRsaDecryptOpData *) pOpData; ++ ++ if (NULL == pOutputData) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pOutputData is NULL\n", __FUNCTION__); ++ memset(pDecryptData->pRecipientPrivateKey, 0, ++ sizeof(CpaCyRsaPrivateKey)); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ pDecryptData->pRecipientPrivateKey); ++ memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData)); ++ kmem_cache_free(drvRSADecrypt_zone, pDecryptData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): LAC Mod Exp CRT operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pOutputData->pData, pOutputData->dataLenInBytes); ++ ++ icp_ocfDrvFreeFlatBuffer(pOutputData); ++ memset(pDecryptData->pRecipientPrivateKey, 0, ++ sizeof(CpaCyRsaPrivateKey)); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ pDecryptData->pRecipientPrivateKey); ++ memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData)); ++ kmem_cache_free(drvRSADecrypt_zone, pDecryptData); ++ ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvDsaRSSignCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DSA RS sign operation. ++ */ ++static void ++icp_ocfDrvDsaRSSignCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, ++ CpaBoolean protocolStatus, ++ CpaFlatBuffer * pR, CpaFlatBuffer * pS) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyDsaRSSignOpData *pSignData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pSignData = (CpaCyDsaRSSignOpData *) pOpData; ++ ++ if (NULL == pR) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pR sign is NULL\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (NULL == pS) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pS sign is NULL\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS != status) { ++ APRINTK("%s(): LAC DSA RS Sign operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } else { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ ++ if (CPA_TRUE != protocolStatus) { ++ DPRINTK("%s(): LAC DSA RS Sign operation failed due " ++ "to protocol error\n", __FUNCTION__); ++ krp->krp_status = EIO; ++ } ++ } ++ ++ /* Swap bytes only when the callback status is successful and ++ protocolStatus is set to true */ ++ if (CPA_STATUS_SUCCESS == status && CPA_TRUE == protocolStatus) { ++ icp_ocfDrvSwapBytes(pR->pData, pR->dataLenInBytes); ++ icp_ocfDrvSwapBytes(pS->pData, pS->dataLenInBytes); ++ } ++ ++ icp_ocfDrvFreeFlatBuffer(pR); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ memset(pSignData->K.pData, 0, pSignData->K.dataLenInBytes); ++ kmem_cache_free(drvDSARSSignKValue_zone, pSignData->K.pData); ++ memset(pSignData, 0, sizeof(CpaCyDsaRSSignOpData)); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvDsaVerifyCallback ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DSA Verify operation. ++ */ ++static void ++icp_ocfDrvDsaVerifyCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaBoolean verifyStatus) ++{ ++ ++ struct cryptkop *krp = NULL; ++ CpaCyDsaVerifyOpData *pVerData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pVerData = (CpaCyDsaVerifyOpData *) pOpData; ++ ++ if (CPA_STATUS_SUCCESS != status) { ++ APRINTK("%s(): LAC DSA Verify operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } else { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ ++ if (CPA_TRUE != verifyStatus) { ++ DPRINTK("%s(): DSA signature invalid\n", __FUNCTION__); ++ krp->krp_status = EIO; ++ } ++ } ++ ++ /* Swap bytes only when the callback status is successful and ++ verifyStatus is set to true */ ++ /*Just swapping back the key values for now. Possibly all ++ swapped buffers need to be reverted */ ++ if (CPA_STATUS_SUCCESS == status && CPA_TRUE == verifyStatus) { ++ icp_ocfDrvSwapBytes(pVerData->R.pData, ++ pVerData->R.dataLenInBytes); ++ icp_ocfDrvSwapBytes(pVerData->S.pData, ++ pVerData->S.dataLenInBytes); ++ } ++ ++ memset(pVerData, 0, sizeof(CpaCyDsaVerifyOpData)); ++ kmem_cache_free(drvDSAVerify_zone, pVerData); ++ crypto_kdone(krp); ++ ++ return; ++} +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_common.c +@@ -0,0 +1,891 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++/* ++ * An OCF module that uses Intel® QuickAssist Integrated Accelerator to do the ++ * crypto. ++ * ++ * This driver requires the ICP Access Library that is available from Intel in ++ * order to operate. ++ */ ++ ++#include "icp_ocf.h" ++ ++#define ICP_OCF_COMP_NAME "ICP_OCF" ++#define ICP_OCF_VER_MAIN (2) ++#define ICP_OCF_VER_MJR (0) ++#define ICP_OCF_VER_MNR (0) ++ ++#define MAX_DEREG_RETRIES (100) ++#define DEFAULT_DEREG_RETRIES (10) ++#define DEFAULT_DEREG_DELAY_IN_JIFFIES (10) ++ ++/* This defines the maximum number of sessions possible between OCF ++ and the OCF Tolapai Driver. If set to zero, there is no limit. */ ++#define DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT (0) ++#define NUM_SUPPORTED_CAPABILITIES (21) ++ ++/*Slabs zones*/ ++struct kmem_cache *drvSessionData_zone = NULL; ++struct kmem_cache *drvOpData_zone = NULL; ++struct kmem_cache *drvDH_zone = NULL; ++struct kmem_cache *drvLnModExp_zone = NULL; ++struct kmem_cache *drvRSADecrypt_zone = NULL; ++struct kmem_cache *drvRSAPrivateKey_zone = NULL; ++struct kmem_cache *drvDSARSSign_zone = NULL; ++struct kmem_cache *drvDSARSSignKValue_zone = NULL; ++struct kmem_cache *drvDSAVerify_zone = NULL; ++ ++/*Slab zones for flatbuffers and bufferlist*/ ++struct kmem_cache *drvFlatBuffer_zone = NULL; ++ ++static int icp_ocfDrvInit(void); ++static void icp_ocfDrvExit(void); ++static void icp_ocfDrvFreeCaches(void); ++static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg); ++ ++int32_t icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ ++/* Module parameter - gives the number of times LAC deregistration shall be ++ re-tried */ ++int num_dereg_retries = DEFAULT_DEREG_RETRIES; ++ ++/* Module parameter - gives the delay time in jiffies before a LAC session ++ shall be attempted to be deregistered again */ ++int dereg_retry_delay_in_jiffies = DEFAULT_DEREG_DELAY_IN_JIFFIES; ++ ++/* Module parameter - gives the maximum number of sessions possible between ++ OCF and the OCF Tolapai Driver. If set to zero, there is no limit.*/ ++int max_sessions = DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT; ++ ++/* This is set when the module is removed from the system, no further ++ processing can take place if this is set */ ++atomic_t icp_ocfDrvIsExiting = ATOMIC_INIT(0); ++ ++/* This is used to show how many lac sessions were not deregistered*/ ++atomic_t lac_session_failed_dereg_count = ATOMIC_INIT(0); ++ ++/* This is used to track the number of registered sessions between OCF and ++ * and the OCF Tolapai driver, when max_session is set to value other than ++ * zero. This ensures that the max_session set for the OCF and the driver ++ * is equal to the LAC registered sessions */ ++atomic_t num_ocf_to_drv_registered_sessions = ATOMIC_INIT(0); ++ ++/* Head of linked list used to store session data */ ++struct list_head icp_ocfDrvGlobalSymListHead; ++struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList; ++ ++spinlock_t icp_ocfDrvSymSessInfoListSpinlock = SPIN_LOCK_UNLOCKED; ++rwlock_t icp_kmem_cache_destroy_alloc_lock = RW_LOCK_UNLOCKED; ++ ++struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ; ++ ++struct icp_drvBuffListInfo defBuffListInfo; ++ ++static struct { ++ softc_device_decl sc_dev; ++} icpDev; ++ ++static device_method_t icp_methods = { ++ /* crypto device methods */ ++ DEVMETHOD(cryptodev_newsession, icp_ocfDrvNewSession), ++ DEVMETHOD(cryptodev_freesession, icp_ocfDrvFreeLACSession), ++ DEVMETHOD(cryptodev_process, icp_ocfDrvSymProcess), ++ DEVMETHOD(cryptodev_kprocess, icp_ocfDrvPkeProcess), ++}; ++ ++module_param(num_dereg_retries, int, S_IRUGO); ++module_param(dereg_retry_delay_in_jiffies, int, S_IRUGO); ++module_param(max_sessions, int, S_IRUGO); ++ ++MODULE_PARM_DESC(num_dereg_retries, ++ "Number of times to retry LAC Sym Session Deregistration. " ++ "Default 10, Max 100"); ++MODULE_PARM_DESC(dereg_retry_delay_in_jiffies, "Delay in jiffies " ++ "(added to a schedule() function call) before a LAC Sym " ++ "Session Dereg is retried. Default 10"); ++MODULE_PARM_DESC(max_sessions, "This sets the maximum number of sessions " ++ "between OCF and this driver. If this value is set to zero, " ++ "max session count checking is disabled. Default is zero(0)"); ++ ++/* Name : icp_ocfDrvInit ++ * ++ * Description : This function will register all the symmetric and asymmetric ++ * functionality that will be accelerated by the hardware. It will also ++ * get a unique driver ID from the OCF and initialise all slab caches ++ */ ++static int __init icp_ocfDrvInit(void) ++{ ++ int ocfStatus = 0; ++ ++ IPRINTK("=== %s ver %d.%d.%d ===\n", ICP_OCF_COMP_NAME, ++ ICP_OCF_VER_MAIN, ICP_OCF_VER_MJR, ICP_OCF_VER_MNR); ++ ++ if (MAX_DEREG_RETRIES < num_dereg_retries) { ++ EPRINTK("Session deregistration retry count set to greater " ++ "than %d", MAX_DEREG_RETRIES); ++ return -1; ++ } ++ ++ /* Initialize and Start the Cryptographic component */ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyStartInstance(CPA_INSTANCE_HANDLE_SINGLE)) { ++ EPRINTK("Failed to initialize and start the instance " ++ "of the Cryptographic component.\n"); ++ return -1; ++ } ++ ++ /* Set the default size of BufferList to allocate */ ++ memset(&defBuffListInfo, 0, sizeof(struct icp_drvBuffListInfo)); ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvBufferListMemInfo(ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS, ++ &defBuffListInfo)) { ++ EPRINTK("Failed to get bufferlist memory info.\n"); ++ return -1; ++ } ++ ++ /*Register OCF Tolapai Driver with OCF */ ++ memset(&icpDev, 0, sizeof(icpDev)); ++ softc_device_init(&icpDev, "icp", 0, icp_methods); ++ ++ icp_ocfDrvDriverId = crypto_get_driverid(softc_get_device(&icpDev), ++ CRYPTOCAP_F_HARDWARE); ++ ++ if (icp_ocfDrvDriverId < 0) { ++ EPRINTK("%s : ICP driver failed to register with OCF!\n", ++ __FUNCTION__); ++ return -ENODEV; ++ } ++ ++ /*Create all the slab caches used by the OCF Tolapai Driver */ ++ drvSessionData_zone = ++ ICP_CACHE_CREATE("ICP Session Data", struct icp_drvSessionData); ++ ICP_CACHE_NULL_CHECK(drvSessionData_zone); ++ ++ /* ++ * Allocation of the OpData includes the allocation space for meta data. ++ * The memory after the opData structure is reserved for this meta data. ++ */ ++ drvOpData_zone = ++ kmem_cache_create("ICP Op Data", sizeof(struct icp_drvOpData) + ++ defBuffListInfo.metaSize ,0, SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ++ ++ ICP_CACHE_NULL_CHECK(drvOpData_zone); ++ ++ drvDH_zone = ICP_CACHE_CREATE("ICP DH data", CpaCyDhPhase1KeyGenOpData); ++ ICP_CACHE_NULL_CHECK(drvDH_zone); ++ ++ drvLnModExp_zone = ++ ICP_CACHE_CREATE("ICP ModExp data", CpaCyLnModExpOpData); ++ ICP_CACHE_NULL_CHECK(drvLnModExp_zone); ++ ++ drvRSADecrypt_zone = ++ ICP_CACHE_CREATE("ICP RSA decrypt data", CpaCyRsaDecryptOpData); ++ ICP_CACHE_NULL_CHECK(drvRSADecrypt_zone); ++ ++ drvRSAPrivateKey_zone = ++ ICP_CACHE_CREATE("ICP RSA private key data", CpaCyRsaPrivateKey); ++ ICP_CACHE_NULL_CHECK(drvRSAPrivateKey_zone); ++ ++ drvDSARSSign_zone = ++ ICP_CACHE_CREATE("ICP DSA Sign", CpaCyDsaRSSignOpData); ++ ICP_CACHE_NULL_CHECK(drvDSARSSign_zone); ++ ++ /*too awkward to use a macro here */ ++ drvDSARSSignKValue_zone = ++ kmem_cache_create("ICP DSA Sign Rand Val", ++ DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES, 0, ++ SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ICP_CACHE_NULL_CHECK(drvDSARSSignKValue_zone); ++ ++ drvDSAVerify_zone = ++ ICP_CACHE_CREATE("ICP DSA Verify", CpaCyDsaVerifyOpData); ++ ICP_CACHE_NULL_CHECK(drvDSAVerify_zone); ++ ++ drvFlatBuffer_zone = ++ ICP_CACHE_CREATE("ICP Flat Buffers", CpaFlatBuffer); ++ ICP_CACHE_NULL_CHECK(drvFlatBuffer_zone); ++ ++ /* Register the ICP symmetric crypto support. */ ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_NULL_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_DES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_3DES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_AES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_ARC4); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512_HMAC); ++ ++ /* Register the ICP asymmetric algorithm support */ ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DH_COMPUTE_KEY); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP_CRT); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_SIGN); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_VERIFY); ++ ++ /* Register the ICP random number generator support */ ++ if (OCF_REGISTRATION_STATUS_SUCCESS == ++ crypto_rregister(icp_ocfDrvDriverId, icp_ocfDrvReadRandom, NULL)) { ++ ocfStatus++; ++ } ++ ++ if (OCF_ZERO_FUNCTIONALITY_REGISTERED == ocfStatus) { ++ DPRINTK("%s: Failed to register any device capabilities\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeCaches(); ++ icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ return -ECANCELED; ++ } ++ ++ DPRINTK("%s: Registered %d of %d device capabilities\n", ++ __FUNCTION__, ocfStatus, NUM_SUPPORTED_CAPABILITIES); ++ ++/*Session data linked list used during module exit*/ ++ INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead); ++ INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead_FreeMemList); ++ ++ icp_ocfDrvFreeLacSessionWorkQ = ++ create_singlethread_workqueue("ocfLacDeregWorkQueue"); ++ ++ return 0; ++} ++ ++/* Name : icp_ocfDrvExit ++ * ++ * Description : This function will deregister all the symmetric sessions ++ * registered with the LAC component. It will also deregister all symmetric ++ * and asymmetric functionality that can be accelerated by the hardware via OCF ++ * and random number generation if it is enabled. ++ */ ++static void icp_ocfDrvExit(void) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ struct icp_drvSessionData *sessionData = NULL; ++ struct icp_drvSessionData *tempSessionData = NULL; ++ int i, remaining_delay_time_in_jiffies = 0; ++ /* There is a possibility of a process or new session command being */ ++ /* sent before this variable is incremented. The aim of this variable */ ++ /* is to stop a loop of calls creating a deadlock situation which */ ++ /* would prevent the driver from exiting. */ ++ ++ atomic_inc(&icp_ocfDrvIsExiting); ++ ++ /*Existing sessions will be routed to another driver after these calls */ ++ crypto_unregister_all(icp_ocfDrvDriverId); ++ crypto_runregister_all(icp_ocfDrvDriverId); ++ ++ /*If any sessions are waiting to be deregistered, do that. This also ++ flushes the work queue */ ++ destroy_workqueue(icp_ocfDrvFreeLacSessionWorkQ); ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ list_for_each_entry_safe(tempSessionData, sessionData, ++ &icp_ocfDrvGlobalSymListHead, listNode) { ++ for (i = 0; i < num_dereg_retries; i++) { ++ /*No harm if bad input - LAC will handle error cases */ ++ if (ICP_SESSION_RUNNING == tempSessionData->inUse) { ++ lacStatus = ++ cpaCySymRemoveSession ++ (CPA_INSTANCE_HANDLE_SINGLE, ++ tempSessionData->sessHandle); ++ if (CPA_STATUS_SUCCESS == lacStatus) { ++ /* Succesfully deregistered */ ++ break; ++ } else if (CPA_STATUS_RETRY != lacStatus) { ++ atomic_inc ++ (&lac_session_failed_dereg_count); ++ break; ++ } ++ ++ /*schedule_timout returns the time left for completion if ++ * this task is set to TASK_INTERRUPTIBLE */ ++ remaining_delay_time_in_jiffies = ++ dereg_retry_delay_in_jiffies; ++ while (0 > remaining_delay_time_in_jiffies) { ++ remaining_delay_time_in_jiffies = ++ schedule_timeout ++ (remaining_delay_time_in_jiffies); ++ } ++ ++ DPRINTK ++ ("%s(): Retry %d to deregistrate the session\n", ++ __FUNCTION__, i); ++ } ++ } ++ ++ /*remove from current list */ ++ list_del(&(tempSessionData->listNode)); ++ /*add to free mem linked list */ ++ list_add(&(tempSessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead_FreeMemList); ++ ++ } ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ /*set back to initial values */ ++ sessionData = NULL; ++ /*still have a reference in our list! */ ++ tempSessionData = NULL; ++ /*free memory */ ++ list_for_each_entry_safe(tempSessionData, sessionData, ++ &icp_ocfDrvGlobalSymListHead_FreeMemList, ++ listNode) { ++ ++ list_del(&(tempSessionData->listNode)); ++ /* Free allocated CpaCySymSessionCtx */ ++ if (NULL != tempSessionData->sessHandle) { ++ kfree(tempSessionData->sessHandle); ++ } ++ memset(tempSessionData, 0, sizeof(struct icp_drvSessionData)); ++ kmem_cache_free(drvSessionData_zone, tempSessionData); ++ } ++ ++ if (0 != atomic_read(&lac_session_failed_dereg_count)) { ++ DPRINTK("%s(): %d LAC sessions were not deregistered " ++ "correctly. This is not a clean exit! \n", ++ __FUNCTION__, ++ atomic_read(&lac_session_failed_dereg_count)); ++ } ++ ++ icp_ocfDrvFreeCaches(); ++ icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ ++ /* Shutdown the Cryptographic component */ ++ lacStatus = cpaCyStopInstance(CPA_INSTANCE_HANDLE_SINGLE); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ DPRINTK("%s(): Failed to stop instance of the " ++ "Cryptographic component.(status == %d)\n", ++ __FUNCTION__, lacStatus); ++ } ++ ++} ++ ++/* Name : icp_ocfDrvFreeCaches ++ * ++ * Description : This function deregisters all slab caches ++ */ ++static void icp_ocfDrvFreeCaches(void) ++{ ++ if (atomic_read(&icp_ocfDrvIsExiting) != CPA_TRUE) { ++ atomic_set(&icp_ocfDrvIsExiting, 1); ++ } ++ ++ /*Sym Zones */ ++ ICP_CACHE_DESTROY(drvSessionData_zone); ++ ICP_CACHE_DESTROY(drvOpData_zone); ++ ++ /*Asym zones */ ++ ICP_CACHE_DESTROY(drvDH_zone); ++ ICP_CACHE_DESTROY(drvLnModExp_zone); ++ ICP_CACHE_DESTROY(drvRSADecrypt_zone); ++ ICP_CACHE_DESTROY(drvRSAPrivateKey_zone); ++ ICP_CACHE_DESTROY(drvDSARSSignKValue_zone); ++ ICP_CACHE_DESTROY(drvDSARSSign_zone); ++ ICP_CACHE_DESTROY(drvDSAVerify_zone); ++ ++ /*FlatBuffer and BufferList Zones */ ++ ICP_CACHE_DESTROY(drvFlatBuffer_zone); ++ ++} ++ ++/* Name : icp_ocfDrvDeregRetry ++ * ++ * Description : This function will try to farm the session deregistration ++ * off to a work queue. If it fails, nothing more can be done and it ++ * returns an error ++ */ ++ ++int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister) ++{ ++ struct icp_ocfDrvFreeLacSession *workstore = NULL; ++ ++ DPRINTK("%s(): Retry - Deregistering session (%p)\n", ++ __FUNCTION__, sessionToDeregister); ++ ++ /*make sure the session is not available to be allocated during this ++ process */ ++ atomic_inc(&lac_session_failed_dereg_count); ++ ++ /*Farm off to work queue */ ++ workstore = ++ kmalloc(sizeof(struct icp_ocfDrvFreeLacSession), GFP_ATOMIC); ++ if (NULL == workstore) { ++ DPRINTK("%s(): unable to free session - no memory available " ++ "for work queue\n", __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ workstore->sessionToDeregister = sessionToDeregister; ++ ++ INIT_WORK(&(workstore->work), icp_ocfDrvDeferedFreeLacSessionProcess, ++ workstore); ++ queue_work(icp_ocfDrvFreeLacSessionWorkQ, &(workstore->work)); ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ ++} ++ ++/* Name : icp_ocfDrvDeferedFreeLacSessionProcess ++ * ++ * Description : This function will retry (module input parameter) ++ * 'num_dereg_retries' times to deregister any symmetric session that recieves a ++ * CPA_STATUS_RETRY message from the LAC component. This function is run in ++ * Thread context because it is called from a worker thread ++ */ ++static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg) ++{ ++ struct icp_ocfDrvFreeLacSession *workstore = NULL; ++ CpaCySymSessionCtx sessionToDeregister = NULL; ++ int i = 0; ++ int remaining_delay_time_in_jiffies = 0; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ ++ workstore = (struct icp_ocfDrvFreeLacSession *)arg; ++ if (NULL == workstore) { ++ DPRINTK("%s() function called with null parameter \n", ++ __FUNCTION__); ++ return; ++ } ++ ++ sessionToDeregister = workstore->sessionToDeregister; ++ kfree(workstore); ++ ++ /*if exiting, give deregistration one more blast only */ ++ if (atomic_read(&icp_ocfDrvIsExiting) == CPA_TRUE) { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ ++ if (lacStatus != CPA_STATUS_SUCCESS) { ++ DPRINTK("%s() Failed to Dereg LAC session %p " ++ "during module exit\n", __FUNCTION__, ++ sessionToDeregister); ++ return; ++ } ++ ++ atomic_dec(&lac_session_failed_dereg_count); ++ return; ++ } ++ ++ for (i = 0; i <= num_dereg_retries; i++) { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ ++ if (lacStatus == CPA_STATUS_SUCCESS) { ++ atomic_dec(&lac_session_failed_dereg_count); ++ return; ++ } ++ if (lacStatus != CPA_STATUS_RETRY) { ++ DPRINTK("%s() Failed to deregister session - lacStatus " ++ " = %d", __FUNCTION__, lacStatus); ++ break; ++ } ++ ++ /*schedule_timout returns the time left for completion if this ++ task is set to TASK_INTERRUPTIBLE */ ++ remaining_delay_time_in_jiffies = dereg_retry_delay_in_jiffies; ++ while (0 > remaining_delay_time_in_jiffies) { ++ remaining_delay_time_in_jiffies = ++ schedule_timeout(remaining_delay_time_in_jiffies); ++ } ++ ++ } ++ ++ DPRINTK("%s(): Unable to deregister session\n", __FUNCTION__); ++ DPRINTK("%s(): Number of unavailable LAC sessions = %d\n", __FUNCTION__, ++ atomic_read(&lac_session_failed_dereg_count)); ++} ++ ++/* Name : icp_ocfDrvPtrAndLenToFlatBuffer ++ * ++ * Description : This function converts a "pointer and length" buffer ++ * structure to Fredericksburg Flat Buffer (CpaFlatBuffer) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len, ++ CpaFlatBuffer * pFlatBuffer) ++{ ++ pFlatBuffer->pData = pData; ++ pFlatBuffer->dataLenInBytes = len; ++} ++ ++/* Name : icp_ocfDrvSingleSkBuffToFlatBuffer ++ * ++ * Description : This function converts a single socket buffer (sk_buff) ++ * structure to a Fredericksburg Flat Buffer (CpaFlatBuffer) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++static inline void ++icp_ocfDrvSingleSkBuffToFlatBuffer(struct sk_buff *pSkb, ++ CpaFlatBuffer * pFlatBuffer) ++{ ++ pFlatBuffer->pData = pSkb->data; ++ pFlatBuffer->dataLenInBytes = skb_headlen(pSkb); ++} ++ ++/* Name : icp_ocfDrvSkBuffToBufferList ++ * ++ * Description : This function converts a socket buffer (sk_buff) structure to ++ * Fredericksburg Scatter/Gather (CpaBufferList) buffer format. ++ * ++ * This function assumes that the bufferlist has been allocated with the correct ++ * number of buffer arrays. ++ * ++ */ ++inline int ++icp_ocfDrvSkBuffToBufferList(struct sk_buff *pSkb, CpaBufferList * bufferList) ++{ ++ CpaFlatBuffer *curFlatBuffer = NULL; ++ char *skbuffPageAddr = NULL; ++ struct sk_buff *pCurFrag = NULL; ++ struct skb_shared_info *pShInfo = NULL; ++ uint32_t page_offset = 0, i = 0; ++ ++ DPRINTK("%s(): Entry Point\n", __FUNCTION__); ++ ++ /* ++ * In all cases, the first skb needs to be translated to FlatBuffer. ++ * Perform a buffer translation for the first skbuff ++ */ ++ curFlatBuffer = bufferList->pBuffers; ++ icp_ocfDrvSingleSkBuffToFlatBuffer(pSkb, curFlatBuffer); ++ ++ /* Set the userData to point to the original sk_buff */ ++ bufferList->pUserData = (void *)pSkb; ++ ++ /* We now know we'll have at least one element in the SGL */ ++ bufferList->numBuffers = 1; ++ ++ if (0 == skb_is_nonlinear(pSkb)) { ++ /* Is a linear buffer - therefore it's a single skbuff */ ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ ++ curFlatBuffer++; ++ pShInfo = skb_shinfo(pSkb); ++ if (pShInfo->frag_list != NULL && pShInfo->nr_frags != 0) { ++ EPRINTK("%s():" ++ "Translation for a combination of frag_list " ++ "and frags[] array not supported!\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } else if (pShInfo->frag_list != NULL) { ++ /* ++ * Non linear skbuff supported through frag_list ++ * Perform translation for each fragment (sk_buff) ++ * in the frag_list of the first sk_buff. ++ */ ++ for (pCurFrag = pShInfo->frag_list; ++ pCurFrag != NULL; pCurFrag = pCurFrag->next) { ++ icp_ocfDrvSingleSkBuffToFlatBuffer(pCurFrag, ++ curFlatBuffer); ++ curFlatBuffer++; ++ bufferList->numBuffers++; ++ } ++ } else if (pShInfo->nr_frags != 0) { ++ /* ++ * Perform translation for each fragment in frags array ++ * and add to the BufferList ++ */ ++ for (i = 0; i < pShInfo->nr_frags; i++) { ++ /* Get the page address and offset of this frag */ ++ skbuffPageAddr = (char *)pShInfo->frags[i].page; ++ page_offset = pShInfo->frags[i].page_offset; ++ ++ /* Convert a pointer and length to a flat buffer */ ++ icp_ocfDrvPtrAndLenToFlatBuffer(skbuffPageAddr + ++ page_offset, ++ pShInfo->frags[i].size, ++ curFlatBuffer); ++ curFlatBuffer++; ++ bufferList->numBuffers++; ++ } ++ } else { ++ EPRINTK("%s():" "Could not recognize skbuff fragments!\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvBufferListToSkBuff ++ * ++ * Description : This function converts a Fredericksburg Scatter/Gather ++ * (CpaBufferList) buffer format to socket buffer structure. ++ */ ++inline int ++icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, struct sk_buff **skb) ++{ ++ DPRINTK("%s(): Entry Point\n", __FUNCTION__); ++ ++ /* Retrieve the orignal skbuff */ ++ *skb = (struct sk_buff *)bufferList->pUserData; ++ if (NULL == *skb) { ++ EPRINTK("%s():" ++ "Error on converting from a BufferList. " ++ "The BufferList does not contain an sk_buff.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvPtrAndLenToBufferList ++ * ++ * Description : This function converts a "pointer and length" buffer ++ * structure to Fredericksburg Scatter/Gather Buffer (CpaBufferList) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length, ++ CpaBufferList * pBufferList) ++{ ++ pBufferList->numBuffers = 1; ++ pBufferList->pBuffers->pData = pDataIn; ++ pBufferList->pBuffers->dataLenInBytes = length; ++} ++ ++/* Name : icp_ocfDrvBufferListToPtrAndLen ++ * ++ * Description : This function converts Fredericksburg Scatter/Gather Buffer ++ * (CpaBufferList) format to a "pointer and length" buffer structure. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList, ++ void **ppDataOut, uint32_t * pLength) ++{ ++ *ppDataOut = pBufferList->pBuffers->pData; ++ *pLength = pBufferList->pBuffers->dataLenInBytes; ++} ++ ++/* Name : icp_ocfDrvBufferListMemInfo ++ * ++ * Description : This function will set the number of flat buffers in ++ * bufferlist, the size of memory to allocate for the pPrivateMetaData ++ * member of the CpaBufferList. ++ */ ++int ++icp_ocfDrvBufferListMemInfo(uint16_t numBuffers, ++ struct icp_drvBuffListInfo *buffListInfo) ++{ ++ buffListInfo->numBuffers = numBuffers; ++ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE, ++ buffListInfo->numBuffers, ++ &(buffListInfo->metaSize))) { ++ EPRINTK("%s() Failed to get buffer list meta size.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvGetSkBuffFrags ++ * ++ * Description : This function will determine the number of ++ * fragments in a socket buffer(sk_buff). ++ */ ++inline uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff * pSkb) ++{ ++ uint16_t numFrags = 0; ++ struct sk_buff *pCurFrag = NULL; ++ struct skb_shared_info *pShInfo = NULL; ++ ++ if (NULL == pSkb) ++ return 0; ++ ++ numFrags = 1; ++ if (0 == skb_is_nonlinear(pSkb)) { ++ /* Linear buffer - it's a single skbuff */ ++ return numFrags; ++ } ++ ++ pShInfo = skb_shinfo(pSkb); ++ if (NULL != pShInfo->frag_list && 0 != pShInfo->nr_frags) { ++ EPRINTK("%s(): Combination of frag_list " ++ "and frags[] array not supported!\n", __FUNCTION__); ++ return 0; ++ } else if (0 != pShInfo->nr_frags) { ++ numFrags += pShInfo->nr_frags; ++ return numFrags; ++ } else if (NULL != pShInfo->frag_list) { ++ for (pCurFrag = pShInfo->frag_list; ++ pCurFrag != NULL; pCurFrag = pCurFrag->next) { ++ numFrags++; ++ } ++ return numFrags; ++ } else { ++ return 0; ++ } ++} ++ ++/* Name : icp_ocfDrvFreeFlatBuffer ++ * ++ * Description : This function will deallocate flat buffer. ++ */ ++inline void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer) ++{ ++ if (pFlatBuffer != NULL) { ++ memset(pFlatBuffer, 0, sizeof(CpaFlatBuffer)); ++ kmem_cache_free(drvFlatBuffer_zone, pFlatBuffer); ++ } ++} ++ ++/* Name : icp_ocfDrvAllocMetaData ++ * ++ * Description : This function will allocate memory for the ++ * pPrivateMetaData member of CpaBufferList. ++ */ ++inline int ++icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, ++ const struct icp_drvOpData *pOpData) ++{ ++ Cpa32U metaSize = 0; ++ ++ if (pBufferList->numBuffers <= ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS){ ++ void *pOpDataStartAddr = (void *)pOpData; ++ ++ if (0 == defBuffListInfo.metaSize) { ++ pBufferList->pPrivateMetaData = NULL; ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ /* ++ * The meta data allocation has been included as part of the ++ * op data. It has been pre-allocated in memory just after the ++ * icp_drvOpData structure. ++ */ ++ pBufferList->pPrivateMetaData = pOpDataStartAddr + ++ sizeof(struct icp_drvOpData); ++ } else { ++ if (CPA_STATUS_SUCCESS != ++ cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE, ++ pBufferList->numBuffers, ++ &metaSize)) { ++ EPRINTK("%s() Failed to get buffer list meta size.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ if (0 == metaSize) { ++ pBufferList->pPrivateMetaData = NULL; ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ ++ pBufferList->pPrivateMetaData = kmalloc(metaSize, GFP_ATOMIC); ++ } ++ if (NULL == pBufferList->pPrivateMetaData) { ++ EPRINTK("%s() Failed to allocate pPrivateMetaData.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvFreeMetaData ++ * ++ * Description : This function will deallocate pPrivateMetaData memory. ++ */ ++inline void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList) ++{ ++ if (NULL == pBufferList->pPrivateMetaData) { ++ return; ++ } ++ ++ /* ++ * Only free the meta data if the BufferList has more than ++ * ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS number of buffers. ++ * Otherwise, the meta data shall be freed when the icp_drvOpData is ++ * freed. ++ */ ++ if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < pBufferList->numBuffers){ ++ kfree(pBufferList->pPrivateMetaData); ++ } ++} ++ ++module_init(icp_ocfDrvInit); ++module_exit(icp_ocfDrvExit); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_AUTHOR("Intel"); ++MODULE_DESCRIPTION("OCF Driver for Intel Quick Assist crypto acceleration"); +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_ocf.h +@@ -0,0 +1,363 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++/* ++ * OCF drv driver header file for the Intel ICP processor. ++ */ ++ ++#ifndef ICP_OCF_H ++#define ICP_OCF_H ++ ++#include ++#include ++#include ++ ++#include "cryptodev.h" ++#include "uio.h" ++ ++#include "cpa.h" ++#include "cpa_cy_im.h" ++#include "cpa_cy_sym.h" ++#include "cpa_cy_rand.h" ++#include "cpa_cy_dh.h" ++#include "cpa_cy_rsa.h" ++#include "cpa_cy_ln.h" ++#include "cpa_cy_common.h" ++#include "cpa_cy_dsa.h" ++ ++#define NUM_BITS_IN_BYTE (8) ++#define NUM_BITS_IN_BYTE_MINUS_ONE (NUM_BITS_IN_BYTE -1) ++#define INVALID_DRIVER_ID (-1) ++#define RETURN_RAND_NUM_GEN_FAILED (-1) ++ ++/*This is define means only one operation can be chained to another ++(resulting in one chain of two operations)*/ ++#define MAX_NUM_OF_CHAINED_OPS (1) ++/*This is the max block cipher initialisation vector*/ ++#define MAX_IV_LEN_IN_BYTES (20) ++/*This is used to check whether the OCF to this driver session limit has ++ been disabled*/ ++#define NO_OCF_TO_DRV_MAX_SESSIONS (0) ++ ++/*OCF values mapped here*/ ++#define ICP_SHA1_DIGEST_SIZE_IN_BYTES (SHA1_HASH_LEN) ++#define ICP_SHA256_DIGEST_SIZE_IN_BYTES (SHA2_256_HASH_LEN) ++#define ICP_SHA384_DIGEST_SIZE_IN_BYTES (SHA2_384_HASH_LEN) ++#define ICP_SHA512_DIGEST_SIZE_IN_BYTES (SHA2_512_HASH_LEN) ++#define ICP_MD5_DIGEST_SIZE_IN_BYTES (MD5_HASH_LEN) ++#define ARC4_COUNTER_LEN (ARC4_BLOCK_LEN) ++ ++#define OCF_REGISTRATION_STATUS_SUCCESS (0) ++#define OCF_ZERO_FUNCTIONALITY_REGISTERED (0) ++#define ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR (0) ++#define ICP_OCF_DRV_STATUS_SUCCESS (0) ++#define ICP_OCF_DRV_STATUS_FAIL (1) ++ ++/*Turn on/off debug options*/ ++#define ICP_OCF_PRINT_DEBUG_MESSAGES (0) ++#define ICP_OCF_PRINT_KERN_ALERT (1) ++#define ICP_OCF_PRINT_KERN_ERRS (1) ++ ++/*DSA Prime Q size in bytes (as defined in the standard) */ ++#define DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES (20) ++ ++/*MACRO DEFINITIONS*/ ++ ++#define BITS_TO_BYTES(bytes, bits) \ ++ bytes = (bits + NUM_BITS_IN_BYTE_MINUS_ONE) / NUM_BITS_IN_BYTE ++ ++#define ICP_CACHE_CREATE(cache_ID, cache_name) \ ++ kmem_cache_create(cache_ID, sizeof(cache_name),0, \ ++ SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ++#define ICP_CACHE_NULL_CHECK(slab_zone) \ ++{ \ ++ if(NULL == slab_zone){ \ ++ icp_ocfDrvFreeCaches(); \ ++ EPRINTK("%s() line %d: Not enough memory!\n", \ ++ __FUNCTION__, __LINE__); \ ++ return ENOMEM; \ ++ } \ ++} ++ ++#define ICP_CACHE_DESTROY(slab_zone) \ ++{ \ ++ if(NULL != slab_zone){ \ ++ kmem_cache_destroy(slab_zone); \ ++ slab_zone = NULL; \ ++ } \ ++} ++ ++#define ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(alg) \ ++{ \ ++ if(OCF_REGISTRATION_STATUS_SUCCESS == \ ++ crypto_register(icp_ocfDrvDriverId, \ ++ alg, \ ++ 0, \ ++ 0)) { \ ++ ocfStatus++; \ ++ } \ ++} ++ ++#define ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(alg) \ ++{ \ ++ if(OCF_REGISTRATION_STATUS_SUCCESS == \ ++ crypto_kregister(icp_ocfDrvDriverId, \ ++ alg, \ ++ 0)){ \ ++ ocfStatus++; \ ++ } \ ++} ++ ++#if ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++#define DPRINTK(args...) \ ++{ \ ++ printk(args); \ ++} ++ ++#else //ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++ ++#define DPRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++ ++#if ICP_OCF_PRINT_KERN_ALERT == 1 ++#define APRINTK(args...) \ ++{ \ ++ printk(KERN_ALERT args); \ ++} ++ ++#else //ICP_OCF_PRINT_KERN_ALERT == 1 ++ ++#define APRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_KERN_ALERT == 1 ++ ++#if ICP_OCF_PRINT_KERN_ERRS == 1 ++#define EPRINTK(args...) \ ++{ \ ++ printk(KERN_ERR args); \ ++} ++ ++#else //ICP_OCF_PRINT_KERN_ERRS == 1 ++ ++#define EPRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_KERN_ERRS == 1 ++ ++#define IPRINTK(args...) \ ++{ \ ++ printk(KERN_INFO args); \ ++} ++ ++/*END OF MACRO DEFINITIONS*/ ++ ++typedef enum { ++ ICP_OCF_DRV_ALG_CIPHER = 0, ++ ICP_OCF_DRV_ALG_HASH ++} icp_ocf_drv_alg_type_t; ++ ++/* These are all defined in icp_common.c */ ++extern atomic_t lac_session_failed_dereg_count; ++extern atomic_t icp_ocfDrvIsExiting; ++extern atomic_t num_ocf_to_drv_registered_sessions; ++ ++/*These are use inputs used in icp_sym.c and icp_common.c ++ They are instantiated in icp_common.c*/ ++extern int max_sessions; ++ ++extern int32_t icp_ocfDrvDriverId; ++extern struct list_head icp_ocfDrvGlobalSymListHead; ++extern struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList; ++extern struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ; ++extern spinlock_t icp_ocfDrvSymSessInfoListSpinlock; ++extern rwlock_t icp_kmem_cache_destroy_alloc_lock; ++ ++/*Slab zones for symettric functionality, instantiated in icp_common.c*/ ++extern struct kmem_cache *drvSessionData_zone; ++extern struct kmem_cache *drvOpData_zone; ++ ++/*Slabs zones for asymettric functionality, instantiated in icp_common.c*/ ++extern struct kmem_cache *drvDH_zone; ++extern struct kmem_cache *drvLnModExp_zone; ++extern struct kmem_cache *drvRSADecrypt_zone; ++extern struct kmem_cache *drvRSAPrivateKey_zone; ++extern struct kmem_cache *drvDSARSSign_zone; ++extern struct kmem_cache *drvDSARSSignKValue_zone; ++extern struct kmem_cache *drvDSAVerify_zone; ++ ++/*Slab zones for flatbuffers and bufferlist*/ ++extern struct kmem_cache *drvFlatBuffer_zone; ++ ++#define ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS (16) ++ ++struct icp_drvBuffListInfo { ++ Cpa16U numBuffers; ++ Cpa32U metaSize; ++ Cpa32U metaOffset; ++ Cpa32U buffListSize; ++}; ++extern struct icp_drvBuffListInfo defBuffListInfo; ++ ++/* ++* This struct is used to keep a reference to the relevant node in the list ++* of sessionData structs, to the buffer type required by OCF and to the OCF ++* provided crp struct that needs to be returned. All this info is needed in ++* the callback function. ++* ++* IV can sometimes be stored in non-contiguous memory (e.g. skbuff ++* linked/frag list, therefore a contiguous memory space for the IV data must be ++* created and passed to LAC ++* ++*/ ++struct icp_drvOpData { ++ CpaCySymOpData lacOpData; ++ uint32_t digestSizeInBytes; ++ struct cryptop *crp; ++ uint8_t bufferType; ++ uint8_t ivData[MAX_IV_LEN_IN_BYTES]; ++ uint16_t numBufferListArray; ++ CpaBufferList srcBuffer; ++ CpaFlatBuffer bufferListArray[ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS]; ++ CpaBoolean verifyResult; ++}; ++/*Values used to derisk chances of performs being called against ++deregistered sessions (for which the slab page has been reclaimed) ++This is not a fix - since page frames are reclaimed from a slab, one cannot ++rely on that memory not being re-used by another app.*/ ++typedef enum { ++ ICP_SESSION_INITIALISED = 0x5C5C5C, ++ ICP_SESSION_RUNNING = 0x005C00, ++ ICP_SESSION_DEREGISTERED = 0xC5C5C5 ++} usage_derisk; ++ ++/* ++This is the OCF<->OCF_DRV session object: ++ ++1.The first member is a listNode. These session objects are added to a linked ++ list in order to make it easier to remove them all at session exit time. ++2.The second member is used to give the session object state and derisk the ++ possibility of OCF batch calls executing against a deregistered session (as ++ described above). ++3.The third member is a LAC<->OCF_DRV session handle (initialised with the first ++ perform request for that session). ++4.The fourth is the LAC session context. All the parameters for this structure ++ are only known when the first perform request for this session occurs. That is ++ why the OCF Tolapai Driver only registers a new LAC session at perform time ++*/ ++struct icp_drvSessionData { ++ struct list_head listNode; ++ usage_derisk inUse; ++ CpaCySymSessionCtx sessHandle; ++ CpaCySymSessionSetupData lacSessCtx; ++}; ++ ++/* This struct is required for deferred session ++ deregistration as a work queue function can ++ only have one argument*/ ++struct icp_ocfDrvFreeLacSession { ++ CpaCySymSessionCtx sessionToDeregister; ++ struct work_struct work; ++}; ++ ++int icp_ocfDrvNewSession(device_t dev, uint32_t * sild, struct cryptoini *cri); ++ ++int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid); ++ ++int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint); ++ ++int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint); ++ ++int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords); ++ ++int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister); ++ ++int icp_ocfDrvSkBuffToBufferList(struct sk_buff *skb, ++ CpaBufferList * bufferList); ++ ++int icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, ++ struct sk_buff **skb); ++ ++void icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len, ++ CpaFlatBuffer * pFlatBuffer); ++ ++void icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length, ++ CpaBufferList * pBufferList); ++ ++void icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList, ++ void **ppDataOut, uint32_t * pLength); ++ ++int icp_ocfDrvBufferListMemInfo(uint16_t numBuffers, ++ struct icp_drvBuffListInfo *buffListInfo); ++ ++uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff *pSkb); ++ ++void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer); ++ ++int icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, ++ const struct icp_drvOpData *pOpData); ++ ++void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList); ++ ++#endif ++/* ICP_OCF_H */ +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_sym.c +@@ -0,0 +1,1382 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++/* ++ * An OCF module that uses the API for Intel® QuickAssist Technology to do the ++ * cryptography. ++ * ++ * This driver requires the ICP Access Library that is available from Intel in ++ * order to operate. ++ */ ++ ++#include "icp_ocf.h" ++ ++/*This is the call back function for all symmetric cryptographic processes. ++ Its main functionality is to free driver crypto operation structure and to ++ call back to OCF*/ ++static void ++icp_ocfDrvSymCallBack(void *callbackTag, ++ CpaStatus status, ++ const CpaCySymOp operationType, ++ void *pOpData, ++ CpaBufferList * pDstBuffer, CpaBoolean verifyResult); ++ ++/*This function is used to extract crypto processing information from the OCF ++ inputs, so as that it may be passed onto LAC*/ ++static int ++icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc); ++ ++/*This function checks whether the crp_desc argument pertains to a digest or a ++ cipher operation*/ ++static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc); ++ ++/*This function copies all the passed in session context information and stores ++ it in a LAC context structure*/ ++static int ++icp_ocfDrvAlgorithmSetup(struct cryptoini *cri, ++ CpaCySymSessionSetupData * lacSessCtx); ++ ++/*This top level function is used to find a pointer to where a digest is ++ stored/needs to be inserted. */ ++static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc); ++ ++/*This function is called when a digest pointer has to be found within a ++ SKBUFF.*/ ++static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData ++ *drvOpData, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*The following two functions are called if the SKBUFF digest pointer is not ++ positioned in the linear portion of the buffer (i.e. it is in a linked SKBUFF ++ or page fragment).*/ ++/*This function takes care of the page fragment case.*/ ++static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*This function takes care of the linked list case.*/ ++static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*This function is used to free an OCF->OCF_DRV session object*/ ++static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData); ++ ++/*max IOV buffs supported in a UIO structure*/ ++#define NUM_IOV_SUPPORTED (1) ++ ++/* Name : icp_ocfDrvSymCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the relevant symmetric operation. ++ * ++ * Notes : The callbackTag is a pointer to an icp_drvOpData. This memory ++ * object was passed to LAC for the cryptographic processing and contains all ++ * the relevant information for cleaning up buffer handles etc. so that the ++ * OCF Tolapai Driver portion of this crypto operation can be fully completed. ++ */ ++static void ++icp_ocfDrvSymCallBack(void *callbackTag, ++ CpaStatus status, ++ const CpaCySymOp operationType, ++ void *pOpData, ++ CpaBufferList * pDstBuffer, CpaBoolean verifyResult) ++{ ++ struct cryptop *crp = NULL; ++ struct icp_drvOpData *temp_drvOpData = ++ (struct icp_drvOpData *)callbackTag; ++ uint64_t *tempBasePtr = NULL; ++ uint32_t tempLen = 0; ++ ++ if (NULL == temp_drvOpData) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null userOpaque data" ++ "(status == %d).\n", __FUNCTION__, status); ++ DPRINTK("%s(): Unable to call OCF back! \n", __FUNCTION__); ++ return; ++ } ++ ++ crp = temp_drvOpData->crp; ++ crp->crp_etype = ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null Symmetric Op data" ++ "(status == %d).\n", __FUNCTION__, status); ++ crp->crp_etype = ECANCELED; ++ crypto_done(crp); ++ return; ++ } ++ ++ if (NULL == pDstBuffer) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null Dst Bufferlist data" ++ "(status == %d).\n", __FUNCTION__, status); ++ crp->crp_etype = ECANCELED; ++ crypto_done(crp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ ++ if (temp_drvOpData->bufferType == CRYPTO_F_SKBUF) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvBufferListToSkBuff(pDstBuffer, ++ (struct sk_buff **) ++ &(crp->crp_buf))) { ++ EPRINTK("%s(): BufferList to SkBuff " ++ "conversion error.\n", __FUNCTION__); ++ crp->crp_etype = EPERM; ++ } ++ } else { ++ icp_ocfDrvBufferListToPtrAndLen(pDstBuffer, ++ (void **)&tempBasePtr, ++ &tempLen); ++ crp->crp_olen = (int)tempLen; ++ } ++ ++ } else { ++ DPRINTK("%s(): The callback from the LAC component has failed" ++ "(status == %d).\n", __FUNCTION__, status); ++ ++ crp->crp_etype = ECANCELED; ++ } ++ ++ if (temp_drvOpData->numBufferListArray > ++ ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) { ++ kfree(pDstBuffer->pBuffers); ++ } ++ icp_ocfDrvFreeMetaData(pDstBuffer); ++ kmem_cache_free(drvOpData_zone, temp_drvOpData); ++ ++ /* Invoke the OCF callback function */ ++ crypto_done(crp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvNewSession ++ * ++ * Description : This function will create a new Driver<->OCF session ++ * ++ * Notes : LAC session registration happens during the first perform call. ++ * That is the first time we know all information about a given session. ++ */ ++int icp_ocfDrvNewSession(device_t dev, uint32_t * sid, struct cryptoini *cri) ++{ ++ struct icp_drvSessionData *sessionData = NULL; ++ uint32_t delete_session = 0; ++ ++ /* The SID passed in should be our driver ID. We can return the */ ++ /* local ID (LID) which is a unique identifier which we can use */ ++ /* to differentiate between the encrypt/decrypt LAC session handles */ ++ if (NULL == sid) { ++ EPRINTK("%s(): Invalid input parameters - NULL sid.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (NULL == cri) { ++ EPRINTK("%s(): Invalid input parameters - NULL cryptoini.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (icp_ocfDrvDriverId != *sid) { ++ EPRINTK("%s(): Invalid input parameters - bad driver ID\n", ++ __FUNCTION__); ++ EPRINTK("\t sid = 0x08%p \n \t cri = 0x08%p \n", sid, cri); ++ return EINVAL; ++ } ++ ++ sessionData = kmem_cache_zalloc(drvSessionData_zone, GFP_ATOMIC); ++ if (NULL == sessionData) { ++ DPRINTK("%s():No memory for Session Data\n", __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ /*put this check in the spinlock so no new sessions can be added to the ++ linked list when we are exiting */ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ delete_session++; ++ ++ } else if (NO_OCF_TO_DRV_MAX_SESSIONS != max_sessions) { ++ if (atomic_read(&num_ocf_to_drv_registered_sessions) >= ++ (max_sessions - ++ atomic_read(&lac_session_failed_dereg_count))) { ++ delete_session++; ++ } else { ++ atomic_inc(&num_ocf_to_drv_registered_sessions); ++ /* Add to session data linked list */ ++ list_add(&(sessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead); ++ } ++ ++ } else if (NO_OCF_TO_DRV_MAX_SESSIONS == max_sessions) { ++ list_add(&(sessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead); ++ } ++ ++ sessionData->inUse = ICP_SESSION_INITIALISED; ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (delete_session) { ++ DPRINTK("%s():No Session handles available\n", __FUNCTION__); ++ kmem_cache_free(drvSessionData_zone, sessionData); ++ return EPERM; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAlgorithmSetup(cri, &(sessionData->lacSessCtx))) { ++ DPRINTK("%s():algorithm not supported\n", __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EINVAL; ++ } ++ ++ if (cri->cri_next) { ++ if (cri->cri_next->cri_next != NULL) { ++ DPRINTK("%s():only two chained algorithms supported\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EPERM; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAlgorithmSetup(cri->cri_next, ++ &(sessionData->lacSessCtx))) { ++ DPRINTK("%s():second algorithm not supported\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EINVAL; ++ } ++ ++ sessionData->lacSessCtx.symOperation = ++ CPA_CY_SYM_OP_ALGORITHM_CHAINING; ++ } ++ ++ *sid = (uint32_t) sessionData; ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvAlgorithmSetup ++ * ++ * Description : This function builds the session context data from the ++ * information supplied through OCF. Algorithm chain order and whether the ++ * session is Encrypt/Decrypt can only be found out at perform time however, so ++ * the session is registered with LAC at that time. ++ */ ++static int ++icp_ocfDrvAlgorithmSetup(struct cryptoini *cri, ++ CpaCySymSessionSetupData * lacSessCtx) ++{ ++ ++ lacSessCtx->sessionPriority = CPA_CY_PRIORITY_NORMAL; ++ ++ switch (cri->cri_alg) { ++ ++ case CRYPTO_NULL_CBC: ++ DPRINTK("%s(): NULL CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_NULL; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_DES_CBC: ++ DPRINTK("%s(): DES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_DES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_3DES_CBC: ++ DPRINTK("%s(): 3DES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_3DES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_AES_CBC: ++ DPRINTK("%s(): AES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_AES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_ARC4: ++ DPRINTK("%s(): ARC4\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_ARC4; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_SHA1: ++ DPRINTK("%s(): SHA1\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA1_HMAC: ++ DPRINTK("%s(): SHA1_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_256: ++ DPRINTK("%s(): SHA256\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA256; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_256_HMAC: ++ DPRINTK("%s(): SHA256_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA256; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_384: ++ DPRINTK("%s(): SHA384\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA384; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_384_HMAC: ++ DPRINTK("%s(): SHA384_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA384; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_512: ++ DPRINTK("%s(): SHA512\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA512; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_512_HMAC: ++ DPRINTK("%s(): SHA512_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA512; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_MD5: ++ DPRINTK("%s(): MD5\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_MD5_HMAC: ++ DPRINTK("%s(): MD5_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ default: ++ DPRINTK("%s(): ALG Setup FAIL\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvFreeOCFSession ++ * ++ * Description : This function deletes all existing Session data representing ++ * the Cryptographic session established between OCF and this driver. This ++ * also includes freeing the memory allocated for the session context. The ++ * session object is also removed from the session linked list. ++ */ ++static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData) ++{ ++ ++ sessionData->inUse = ICP_SESSION_DEREGISTERED; ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ /*If the Driver is exiting, allow that process to ++ handle any deletions */ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ return; ++ } ++ ++ atomic_dec(&num_ocf_to_drv_registered_sessions); ++ ++ list_del(&(sessionData->listNode)); ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (NULL != sessionData->sessHandle) { ++ kfree(sessionData->sessHandle); ++ } ++ kmem_cache_free(drvSessionData_zone, sessionData); ++} ++ ++/* Name : icp_ocfDrvFreeLACSession ++ * ++ * Description : This attempts to deregister a LAC session. If it fails, the ++ * deregistation retry function is called. ++ */ ++int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid) ++{ ++ CpaCySymSessionCtx sessionToDeregister = NULL; ++ struct icp_drvSessionData *sessionData = NULL; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ int retval = 0; ++ ++ sessionData = (struct icp_drvSessionData *)CRYPTO_SESID2LID(sid); ++ if (NULL == sessionData) { ++ EPRINTK("%s(): OCF Free session called with Null Session ID.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ sessionToDeregister = sessionData->sessHandle; ++ ++ if (ICP_SESSION_INITIALISED == sessionData->inUse) { ++ DPRINTK("%s() Session not registered with LAC\n", __FUNCTION__); ++ } else if (NULL == sessionData->sessHandle) { ++ EPRINTK ++ ("%s(): OCF Free session called with Null Session Handle.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } else { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ if (CPA_STATUS_RETRY == lacStatus) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvDeregRetry(&sessionToDeregister)) { ++ /* the retry function increments the ++ dereg failed count */ ++ DPRINTK("%s(): LAC failed to deregister the " ++ "session. (localSessionId= %p)\n", ++ __FUNCTION__, sessionToDeregister); ++ retval = EPERM; ++ } ++ ++ } else if (CPA_STATUS_SUCCESS != lacStatus) { ++ DPRINTK("%s(): LAC failed to deregister the session. " ++ "localSessionId= %p, lacStatus = %d\n", ++ __FUNCTION__, sessionToDeregister, lacStatus); ++ atomic_inc(&lac_session_failed_dereg_count); ++ retval = EPERM; ++ } ++ } ++ ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return retval; ++ ++} ++ ++/* Name : icp_ocfDrvAlgCheck ++ * ++ * Description : This function checks whether the cryptodesc argument pertains ++ * to a sym or hash function ++ */ ++static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc) ++{ ++ ++ if (crp_desc->crd_alg == CRYPTO_3DES_CBC || ++ crp_desc->crd_alg == CRYPTO_AES_CBC || ++ crp_desc->crd_alg == CRYPTO_DES_CBC || ++ crp_desc->crd_alg == CRYPTO_NULL_CBC || ++ crp_desc->crd_alg == CRYPTO_ARC4) { ++ return ICP_OCF_DRV_ALG_CIPHER; ++ } ++ ++ return ICP_OCF_DRV_ALG_HASH; ++} ++ ++/* Name : icp_ocfDrvSymProcess ++ * ++ * Description : This function will map symmetric functionality calls from OCF ++ * to the LAC API. It will also allocate memory to store the session context. ++ * ++ * Notes: If it is the first perform call for a given session, then a LAC ++ * session is registered. After the session is registered, no checks as ++ * to whether session paramaters have changed (e.g. alg chain order) are ++ * done. ++ */ ++int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint) ++{ ++ struct icp_drvSessionData *sessionData = NULL; ++ struct icp_drvOpData *drvOpData = NULL; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ Cpa32U sessionCtxSizeInBytes = 0; ++ uint16_t numBufferListArray = 0; ++ ++ if (NULL == crp) { ++ DPRINTK("%s(): Invalid input parameters, cryptop is NULL\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (NULL == crp->crp_desc) { ++ DPRINTK("%s(): Invalid input parameters, no crp_desc attached " ++ "to crp\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ if (NULL == crp->crp_buf) { ++ DPRINTK("%s(): Invalid input parameters, no buffer attached " ++ "to crp\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ crp->crp_etype = EFAULT; ++ return EFAULT; ++ } ++ ++ sessionData = (struct icp_drvSessionData *) ++ (CRYPTO_SESID2LID(crp->crp_sid)); ++ if (NULL == sessionData) { ++ DPRINTK("%s(): Invalid input parameters, Null Session ID \n", ++ __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++/*If we get a request against a deregisted session, cancel operation*/ ++ if (ICP_SESSION_DEREGISTERED == sessionData->inUse) { ++ DPRINTK("%s(): Session ID %d was deregistered \n", ++ __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid))); ++ crp->crp_etype = EFAULT; ++ return EFAULT; ++ } ++ ++/*If none of the session states are set, then the session structure was either ++ not initialised properly or we are reading from a freed memory area (possible ++ due to OCF batch mode not removing queued requests against deregistered ++ sessions*/ ++ if (ICP_SESSION_INITIALISED != sessionData->inUse && ++ ICP_SESSION_RUNNING != sessionData->inUse) { ++ DPRINTK("%s(): Session - ID %d - not properly initialised or " ++ "memory freed back to the kernel \n", ++ __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid))); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ /*For the below checks, remember error checking is already done in LAC. ++ We're not validating inputs subsequent to registration */ ++ if (sessionData->inUse == ICP_SESSION_INITIALISED) { ++ DPRINTK("%s(): Initialising session\n", __FUNCTION__); ++ ++ if (NULL != crp->crp_desc->crd_next) { ++ if (ICP_OCF_DRV_ALG_CIPHER == ++ icp_ocfDrvAlgCheck(crp->crp_desc)) { ++ ++ sessionData->lacSessCtx.algChainOrder = ++ CPA_CY_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH; ++ ++ if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ } else { ++ sessionData->lacSessCtx.algChainOrder = ++ CPA_CY_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER; ++ ++ if (crp->crp_desc->crd_next->crd_flags & ++ CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ ++ } ++ ++ } else if (ICP_OCF_DRV_ALG_CIPHER == ++ icp_ocfDrvAlgCheck(crp->crp_desc)) { ++ if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ ++ } ++ ++ /*No action required for standalone Auth here */ ++ ++ /* Allocate memory for SymSessionCtx before the Session Registration */ ++ lacStatus = ++ cpaCySymSessionCtxGetSize(CPA_INSTANCE_HANDLE_SINGLE, ++ &(sessionData->lacSessCtx), ++ &sessionCtxSizeInBytes); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymSessionCtxGetSize failed - %d\n", ++ __FUNCTION__, lacStatus); ++ return EINVAL; ++ } ++ sessionData->sessHandle = ++ kmalloc(sessionCtxSizeInBytes, GFP_ATOMIC); ++ if (NULL == sessionData->sessHandle) { ++ EPRINTK ++ ("%s(): Failed to get memory for SymSessionCtx\n", ++ __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ lacStatus = cpaCySymInitSession(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvSymCallBack, ++ &(sessionData->lacSessCtx), ++ sessionData->sessHandle); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymInitSession failed -%d \n", ++ __FUNCTION__, lacStatus); ++ return EFAULT; ++ } ++ ++ sessionData->inUse = ICP_SESSION_RUNNING; ++ } ++ ++ drvOpData = kmem_cache_zalloc(drvOpData_zone, GFP_ATOMIC); ++ if (NULL == drvOpData) { ++ EPRINTK("%s():Failed to get memory for drvOpData\n", ++ __FUNCTION__); ++ crp->crp_etype = ENOMEM; ++ return ENOMEM; ++ } ++ ++ drvOpData->lacOpData.pSessionCtx = sessionData->sessHandle; ++ drvOpData->digestSizeInBytes = sessionData->lacSessCtx.hashSetupData. ++ digestResultLenInBytes; ++ drvOpData->crp = crp; ++ ++ /* Set the default buffer list array memory allocation */ ++ drvOpData->srcBuffer.pBuffers = drvOpData->bufferListArray; ++ drvOpData->numBufferListArray = ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS; ++ ++ /* ++ * Allocate buffer list array memory allocation if the ++ * data fragment is more than the default allocation ++ */ ++ if (crp->crp_flags & CRYPTO_F_SKBUF) { ++ numBufferListArray = icp_ocfDrvGetSkBuffFrags((struct sk_buff *) ++ crp->crp_buf); ++ if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < numBufferListArray) { ++ DPRINTK("%s() numBufferListArray more than default\n", ++ __FUNCTION__); ++ drvOpData->srcBuffer.pBuffers = NULL; ++ drvOpData->srcBuffer.pBuffers = ++ kmalloc(numBufferListArray * ++ sizeof(CpaFlatBuffer), GFP_ATOMIC); ++ if (NULL == drvOpData->srcBuffer.pBuffers) { ++ EPRINTK("%s() Failed to get memory for " ++ "pBuffers\n", __FUNCTION__); ++ kmem_cache_free(drvOpData_zone, drvOpData); ++ crp->crp_etype = ENOMEM; ++ return ENOMEM; ++ } ++ drvOpData->numBufferListArray = numBufferListArray; ++ } ++ } ++ ++ /* ++ * Check the type of buffer structure we got and convert it into ++ * CpaBufferList format. ++ */ ++ if (crp->crp_flags & CRYPTO_F_SKBUF) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvSkBuffToBufferList((struct sk_buff *)crp->crp_buf, ++ &(drvOpData->srcBuffer))) { ++ EPRINTK("%s():Failed to translate from SK_BUF " ++ "to bufferlist\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ drvOpData->bufferType = CRYPTO_F_SKBUF; ++ } else if (crp->crp_flags & CRYPTO_F_IOV) { ++ /* OCF only supports IOV of one entry. */ ++ if (NUM_IOV_SUPPORTED == ++ ((struct uio *)(crp->crp_buf))->uio_iovcnt) { ++ ++ icp_ocfDrvPtrAndLenToBufferList(((struct uio *)(crp-> ++ crp_buf))-> ++ uio_iov[0].iov_base, ++ ((struct uio *)(crp-> ++ crp_buf))-> ++ uio_iov[0].iov_len, ++ &(drvOpData-> ++ srcBuffer)); ++ ++ drvOpData->bufferType = CRYPTO_F_IOV; ++ ++ } else { ++ DPRINTK("%s():Unable to handle IOVs with lengths of " ++ "greater than one!\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ } else { ++ icp_ocfDrvPtrAndLenToBufferList(crp->crp_buf, ++ crp->crp_ilen, ++ &(drvOpData->srcBuffer)); ++ ++ drvOpData->bufferType = CRYPTO_BUF_CONTIG; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->crp_desc)) { ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ if (drvOpData->crp->crp_desc->crd_next != NULL) { ++ if (icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp-> ++ crp_desc->crd_next)) { ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ } ++ ++ /* Allocate srcBuffer's private meta data */ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAllocMetaData(&(drvOpData->srcBuffer), drvOpData)) { ++ EPRINTK("%s() icp_ocfDrvAllocMetaData failed\n", __FUNCTION__); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ /* Perform "in-place" crypto operation */ ++ lacStatus = cpaCySymPerformOp(CPA_INSTANCE_HANDLE_SINGLE, ++ (void *)drvOpData, ++ &(drvOpData->lacOpData), ++ &(drvOpData->srcBuffer), ++ &(drvOpData->srcBuffer), ++ &(drvOpData->verifyResult)); ++ if (CPA_STATUS_RETRY == lacStatus) { ++ DPRINTK("%s(): cpaCySymPerformOp retry, lacStatus = %d\n", ++ __FUNCTION__, lacStatus); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymPerformOp failed, lacStatus = %d\n", ++ __FUNCTION__, lacStatus); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ return 0; //OCF success status value ++ ++ err: ++ if (drvOpData->numBufferListArray > ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) { ++ kfree(drvOpData->srcBuffer.pBuffers); ++ } ++ icp_ocfDrvFreeMetaData(&(drvOpData->srcBuffer)); ++ kmem_cache_free(drvOpData_zone, drvOpData); ++ ++ return crp->crp_etype; ++} ++ ++/* Name : icp_ocfDrvProcessDataSetup ++ * ++ * Description : This function will setup all the cryptographic operation data ++ * that is required by LAC to execute the operation. ++ */ ++static int icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc) ++{ ++ CpaCyRandGenOpData randGenOpData; ++ CpaFlatBuffer randData; ++ ++ drvOpData->lacOpData.packetType = CPA_CY_SYM_PACKET_TYPE_FULL; ++ ++ /* Convert from the cryptop to the ICP LAC crypto parameters */ ++ switch (crp_desc->crd_alg) { ++ case CRYPTO_NULL_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = NULL_BLOCK_LEN; ++ break; ++ case CRYPTO_DES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = DES_BLOCK_LEN; ++ break; ++ case CRYPTO_3DES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = DES3_BLOCK_LEN; ++ break; ++ case CRYPTO_ARC4: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = ARC4_COUNTER_LEN; ++ break; ++ case CRYPTO_AES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = RIJNDAEL128_BLOCK_LEN; ++ break; ++ case CRYPTO_SHA1: ++ case CRYPTO_SHA1_HMAC: ++ case CRYPTO_SHA2_256: ++ case CRYPTO_SHA2_256_HMAC: ++ case CRYPTO_SHA2_384: ++ case CRYPTO_SHA2_384_HMAC: ++ case CRYPTO_SHA2_512: ++ case CRYPTO_SHA2_512_HMAC: ++ case CRYPTO_MD5: ++ case CRYPTO_MD5_HMAC: ++ drvOpData->lacOpData. ++ hashStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToHashInBytes = crp_desc->crd_len; ++ drvOpData->lacOpData. ++ pDigestResult = ++ icp_ocfDrvDigestPointerFind(drvOpData, crp_desc); ++ ++ if (NULL == drvOpData->lacOpData.pDigestResult) { ++ DPRINTK("%s(): ERROR - could not calculate " ++ "Digest Result memory address\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ drvOpData->lacOpData.digestVerify = CPA_FALSE; ++ break; ++ default: ++ DPRINTK("%s(): Crypto process error - algorithm not " ++ "found \n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ /* Figure out what the IV is supposed to be */ ++ if ((crp_desc->crd_alg == CRYPTO_DES_CBC) || ++ (crp_desc->crd_alg == CRYPTO_3DES_CBC) || ++ (crp_desc->crd_alg == CRYPTO_AES_CBC)) { ++ /*ARC4 doesn't use an IV */ ++ if (crp_desc->crd_flags & CRD_F_IV_EXPLICIT) { ++ /* Explicit IV provided to OCF */ ++ drvOpData->lacOpData.pIv = crp_desc->crd_iv; ++ } else { ++ /* IV is not explicitly provided to OCF */ ++ ++ /* Point the LAC OP Data IV pointer to our allocated ++ storage location for this session. */ ++ drvOpData->lacOpData.pIv = drvOpData->ivData; ++ ++ if ((crp_desc->crd_flags & CRD_F_ENCRYPT) && ++ ((crp_desc->crd_flags & CRD_F_IV_PRESENT) == 0)) { ++ ++ /* Encrypting - need to create IV */ ++ randGenOpData.generateBits = CPA_TRUE; ++ randGenOpData.lenInBytes = MAX_IV_LEN_IN_BYTES; ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) ++ drvOpData-> ++ ivData, ++ MAX_IV_LEN_IN_BYTES, ++ &randData); ++ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, ++ &randGenOpData, &randData)) { ++ DPRINTK("%s(): ERROR - Failed to" ++ " generate" ++ " Initialisation Vector\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ crypto_copyback(drvOpData->crp-> ++ crp_flags, ++ drvOpData->crp->crp_buf, ++ crp_desc->crd_inject, ++ drvOpData->lacOpData. ++ ivLenInBytes, ++ (caddr_t) (drvOpData->lacOpData. ++ pIv)); ++ } else { ++ /* Reading IV from buffer */ ++ crypto_copydata(drvOpData->crp-> ++ crp_flags, ++ drvOpData->crp->crp_buf, ++ crp_desc->crd_inject, ++ drvOpData->lacOpData. ++ ivLenInBytes, ++ (caddr_t) (drvOpData->lacOpData. ++ pIv)); ++ } ++ ++ } ++ ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvDigestPointerFind ++ * ++ * Description : This function is used to find the memory address of where the ++ * digest information shall be stored in. Input buffer types are an skbuff, iov ++ * or flat buffer. The address is found using the buffer data start address and ++ * an offset. ++ * ++ * Note: In the case of a linux skbuff, the digest address may exist within ++ * a memory space linked to from the start buffer. These linked memory spaces ++ * must be traversed by the data length offset in order to find the digest start ++ * address. Whether there is enough space for the digest must also be checked. ++ */ ++ ++static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc) ++{ ++ ++ int offsetInBytes = crp_desc->crd_inject; ++ uint32_t digestSizeInBytes = drvOpData->digestSizeInBytes; ++ uint8_t *flat_buffer_base = NULL; ++ int flat_buffer_length = 0; ++ struct sk_buff *skb; ++ ++ if (drvOpData->crp->crp_flags & CRYPTO_F_SKBUF) { ++ /*check if enough overall space to store hash */ ++ skb = (struct sk_buff *)(drvOpData->crp->crp_buf); ++ ++ if (skb->len < (offsetInBytes + digestSizeInBytes)) { ++ DPRINTK("%s() Not enough space for Digest" ++ " payload after the offset (%d), " ++ "digest size (%d) \n", __FUNCTION__, ++ offsetInBytes, digestSizeInBytes); ++ return NULL; ++ } ++ ++ return icp_ocfDrvSkbuffDigestPointerFind(drvOpData, ++ offsetInBytes, ++ digestSizeInBytes); ++ ++ } else { ++ /* IOV or flat buffer */ ++ if (drvOpData->crp->crp_flags & CRYPTO_F_IOV) { ++ /*single IOV check has already been done */ ++ flat_buffer_base = ((struct uio *) ++ (drvOpData->crp->crp_buf))-> ++ uio_iov[0].iov_base; ++ flat_buffer_length = ((struct uio *) ++ (drvOpData->crp->crp_buf))-> ++ uio_iov[0].iov_len; ++ } else { ++ flat_buffer_base = (uint8_t *) drvOpData->crp->crp_buf; ++ flat_buffer_length = drvOpData->crp->crp_ilen; ++ } ++ ++ if (flat_buffer_length < (offsetInBytes + digestSizeInBytes)) { ++ DPRINTK("%s() Not enough space for Digest " ++ "(IOV/Flat Buffer) \n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) (flat_buffer_base + offsetInBytes); ++ } ++ } ++ DPRINTK("%s() Should not reach this point\n", __FUNCTION__); ++ return NULL; ++} ++ ++/* Name : icp_ocfDrvSkbuffDigestPointerFind ++ * ++ * Description : This function is used by icp_ocfDrvDigestPointerFind to process ++ * the non-linear portion of the skbuff if the fragmentation type is a linked ++ * list (frag_list is not NULL in the skb_shared_info structure) ++ */ ++static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData ++ *drvOpData, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ ++ struct sk_buff *skb = NULL; ++ struct skb_shared_info *skb_shared = NULL; ++ ++ uint32_t skbuffisnonlinear = 0; ++ ++ uint32_t skbheadlen = 0; ++ ++ skb = (struct sk_buff *)(drvOpData->crp->crp_buf); ++ skbuffisnonlinear = skb_is_nonlinear(skb); ++ ++ skbheadlen = skb_headlen(skb); ++ ++ /*Linear skb checks */ ++ if (skbheadlen > offsetInBytes) { ++ ++ if (skbheadlen >= (offsetInBytes + digestSizeInBytes)) { ++ return (uint8_t *) (skb->data + offsetInBytes); ++ } else { ++ DPRINTK("%s() Auth payload stretches " ++ "accross contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } ++ } else { ++ if (skbuffisnonlinear) { ++ offsetInBytes -= skbheadlen; ++ } else { ++ DPRINTK("%s() Offset outside of buffer boundaries\n", ++ __FUNCTION__); ++ return NULL; ++ } ++ } ++ ++ /*Non Linear checks */ ++ skb_shared = (struct skb_shared_info *)(skb->end); ++ if (unlikely(NULL == skb_shared)) { ++ DPRINTK("%s() skbuff shared info stucture is NULL! \n", ++ __FUNCTION__); ++ return NULL; ++ } else if ((0 != skb_shared->nr_frags) && ++ (skb_shared->frag_list != NULL)) { ++ DPRINTK("%s() skbuff nr_frags AND " ++ "frag_list not supported \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ /*TCP segmentation more likely than IP fragmentation */ ++ if (likely(0 != skb_shared->nr_frags)) { ++ return icp_ocfDrvDigestSkbNRFragsCheck(skb, skb_shared, ++ offsetInBytes, ++ digestSizeInBytes); ++ } else if (skb_shared->frag_list != NULL) { ++ return icp_ocfDrvDigestSkbFragListCheck(skb, skb_shared, ++ offsetInBytes, ++ digestSizeInBytes); ++ } else { ++ DPRINTK("%s() skbuff is non-linear but does not show any " ++ "linked data\n", __FUNCTION__); ++ return NULL; ++ } ++ ++} ++ ++/* Name : icp_ocfDrvDigestSkbNRFragsCheck ++ * ++ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to ++ * process the non-linear portion of the skbuff, if the fragmentation type is ++ * page fragments ++ */ ++static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ int i = 0; ++ /*nr_frags starts from 1 */ ++ if (MAX_SKB_FRAGS < skb_shared->nr_frags) { ++ DPRINTK("%s error processing skbuff " ++ "page frame -- MAX FRAGS exceeded \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ for (i = 0; i < skb_shared->nr_frags; i++) { ++ ++ if (offsetInBytes >= skb_shared->frags[i].size) { ++ /*offset still greater than data position */ ++ offsetInBytes -= skb_shared->frags[i].size; ++ } else { ++ /* found the page containing start of hash */ ++ ++ if (NULL == skb_shared->frags[i].page) { ++ DPRINTK("%s() Linked page is NULL!\n", ++ __FUNCTION__); ++ return NULL; ++ } ++ ++ if (offsetInBytes + digestSizeInBytes > ++ skb_shared->frags[i].size) { ++ DPRINTK("%s() Auth payload stretches accross " ++ "contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) (skb_shared->frags[i].page + ++ skb_shared->frags[i]. ++ page_offset + ++ offsetInBytes); ++ } ++ } ++ /*only possible if internal page sizes are set wrong */ ++ if (offsetInBytes < 0) { ++ DPRINTK("%s error processing skbuff page frame " ++ "-- offset calculation \n", __FUNCTION__); ++ return NULL; ++ } ++ } ++ /*only possible if internal page sizes are set wrong */ ++ DPRINTK("%s error processing skbuff page frame " ++ "-- ran out of page fragments, remaining offset = %d \n", ++ __FUNCTION__, offsetInBytes); ++ return NULL; ++ ++} ++ ++/* Name : icp_ocfDrvDigestSkbFragListCheck ++ * ++ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to ++ * process the non-linear portion of the skbuff, if the fragmentation type is ++ * a linked list ++ * ++ */ ++static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ ++ struct sk_buff *skb_list = skb_shared->frag_list; ++ /*check added for readability */ ++ if (NULL == skb_list) { ++ DPRINTK("%s error processing skbuff " ++ "-- no more list! \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ for (; skb_list; skb_list = skb_list->next) { ++ if (NULL == skb_list) { ++ DPRINTK("%s error processing skbuff " ++ "-- no more list! \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ if (offsetInBytes >= skb_list->len) { ++ offsetInBytes -= skb_list->len; ++ ++ } else { ++ if (offsetInBytes + digestSizeInBytes > skb_list->len) { ++ DPRINTK("%s() Auth payload stretches accross " ++ "contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) ++ (skb_list->data + offsetInBytes); ++ } ++ ++ } ++ ++ /*This check is only needed if internal skb_list length values ++ are set wrong. */ ++ if (0 > offsetInBytes) { ++ DPRINTK("%s() error processing skbuff object -- offset " ++ "calculation \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ } ++ ++ /*catch all for unusual for-loop exit. ++ This code should never be reached */ ++ DPRINTK("%s() Catch-All hit! Process error.\n", __FUNCTION__); ++ return NULL; ++} +--- /dev/null +++ b/crypto/ocf/pasemi/pasemi.c @@ -0,0 +1,1009 @@ +/* diff --git a/target/linux/generic-2.6/patches-2.6.27/971-ocf_compile_fix.patch b/target/linux/generic-2.6/patches-2.6.26/972-ocf_compile_fix.patch similarity index 100% rename from target/linux/generic-2.6/patches-2.6.27/971-ocf_compile_fix.patch rename to target/linux/generic-2.6/patches-2.6.26/972-ocf_compile_fix.patch diff --git a/target/linux/generic-2.6/patches-2.6.27/970-ocf_kbuild_integration.patch b/target/linux/generic-2.6/patches-2.6.27/970-ocf_kbuild_integration.patch new file mode 100644 index 0000000000..243708f7ed --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.27/970-ocf_kbuild_integration.patch @@ -0,0 +1,25 @@ +--- a/crypto/Kconfig ++++ b/crypto/Kconfig +@@ -666,6 +666,8 @@ config CRYPTO_LZO + help + This is the LZO algorithm. + ++source "crypto/ocf/Kconfig" ++ + source "drivers/crypto/Kconfig" + + endif # if CRYPTO +--- a/crypto/Makefile ++++ b/crypto/Makefile +@@ -73,6 +73,11 @@ obj-$(CONFIG_CRYPTO_LZO) += lzo.o + obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o + + # ++# OCF ++# ++obj-$(CONFIG_OCF_OCF) += ocf/ ++ ++# + # generic algorithms and the async_tx api + # + obj-$(CONFIG_XOR_BLOCKS) += xor.o diff --git a/target/linux/generic-2.6/patches-2.6.27/970-ocf_20080704.patch b/target/linux/generic-2.6/patches-2.6.27/971-ocf_20080917.patch similarity index 80% rename from target/linux/generic-2.6/patches-2.6.27/970-ocf_20080704.patch rename to target/linux/generic-2.6/patches-2.6.27/971-ocf_20080917.patch index f876a78968..1ceb98d5f9 100644 --- a/target/linux/generic-2.6/patches-2.6.27/970-ocf_20080704.patch +++ b/target/linux/generic-2.6/patches-2.6.27/971-ocf_20080917.patch @@ -1,23 +1,3 @@ ---- a/crypto/Kconfig -+++ b/crypto/Kconfig -@@ -669,3 +669,6 @@ config CRYPTO_LZO - source "drivers/crypto/Kconfig" - - endif # if CRYPTO -+ -+source "crypto/ocf/Kconfig" -+ ---- a/crypto/Makefile -+++ b/crypto/Makefile -@@ -72,6 +72,8 @@ obj-$(CONFIG_CRYPTO_LZO) += lzo.o - - obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o - -+obj-$(CONFIG_OCF_OCF) += ocf/ -+ - # - # generic algorithms and the async_tx api - # --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -129,6 +129,9 @@ @@ -60,7 +40,7 @@ + */ +void random_input_words(__u32 *buf, size_t wordcount, int ent_count) +{ -+ mix_pool_bytes(&input_pool, buf, wordcount); ++ mix_pool_bytes(&input_pool, buf, wordcount*4); + + credit_entropy_bits(&input_pool, ent_count); + @@ -86,13 +66,13 @@ +{ + int count; + -+ wait_event_interruptible(random_write_wait, ++ wait_event_interruptible(random_write_wait, + input_pool.entropy_count < random_write_wakeup_thresh); + + count = random_write_wakeup_thresh - input_pool.entropy_count; + + /* likely we got woken up due to a signal */ -+ if (count <= 0) count = random_read_wakeup_thresh; ++ if (count <= 0) count = random_read_wakeup_thresh; + + DEBUG_ENT("requesting %d bits from input_wait()er %d<%d\n", + count, @@ -211,7 +191,7 @@ + --- /dev/null +++ b/crypto/ocf/Makefile -@@ -0,0 +1,120 @@ +@@ -0,0 +1,121 @@ +# for SGlinux builds +-include $(ROOTDIR)/modules/.config + @@ -256,6 +236,7 @@ +$(_obj)-$(CONFIG_OCF_IXP4XX) += ixp4xx$(_slash) +$(_obj)-$(CONFIG_OCF_TALITOS) += talitos$(_slash) +$(_obj)-$(CONFIG_OCF_PASEMI) += pasemi$(_slash) ++$(_obj)-$(CONFIG_OCF_EP80579) += ep80579$(_slash) +$(_obj)-$(CONFIG_OCF_OCFNULL) += ocfnull$(_slash) + +ocf-objs := $(OCF_OBJS) @@ -292,7 +273,7 @@ + diff -Nau /dev/null $$t | sed 's?^+++ \./?+++ linux/crypto/ocf/?'; \ + done > $$patch; \ + cat patches/linux-2.4.35-ocf.patch $$patch > $$patch24; \ -+ cat patches/linux-2.6.25-ocf.patch $$patch > $$patch26 ++ cat patches/linux-2.6.26-ocf.patch $$patch > $$patch26 + +.PHONY: tarball +tarball: @@ -470,6 +451,116 @@ +endif + --- /dev/null ++++ b/crypto/ocf/ep80579/Makefile +@@ -0,0 +1,107 @@ ++######################################################################### ++# ++# Targets supported ++# all - builds everything and installs ++# install - identical to all ++# depend - build dependencies ++# clean - clears derived objects except the .depend files ++# distclean- clears all derived objects and the .depend file ++# ++# @par ++# This file is provided under a dual BSD/GPLv2 license. When using or ++# redistributing this file, you may do so under either license. ++# ++# GPL LICENSE SUMMARY ++# ++# Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++# ++# This program is free software; you can redistribute it and/or modify ++# it under the terms of version 2 of the GNU General Public License as ++# published by the Free Software Foundation. ++# ++# This program is distributed in the hope that it will be useful, but ++# WITHOUT ANY WARRANTY; without even the implied warranty of ++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++# General Public License for more details. ++# ++# You should have received a copy of the GNU General Public License ++# along with this program; if not, write to the Free Software ++# Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++# The full GNU General Public License is included in this distribution ++# in the file called LICENSE.GPL. ++# ++# Contact Information: ++# Intel Corporation ++# ++# BSD LICENSE ++# ++# Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++# All rights reserved. ++# ++# Redistribution and use in source and binary forms, with or without ++# modification, are permitted provided that the following conditions ++# are met: ++# ++# * Redistributions of source code must retain the above copyright ++# notice, this list of conditions and the following disclaimer. ++# * Redistributions in binary form must reproduce the above copyright ++# notice, this list of conditions and the following disclaimer in ++# the documentation and/or other materials provided with the ++# distribution. ++# * Neither the name of Intel Corporation nor the names of its ++# contributors may be used to endorse or promote products derived ++# from this software without specific prior written permission. ++# ++# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++# ++# ++# version: Security.L.1.0.130 ++############################################################################ ++ ++ ++####################Common variables and definitions######################## ++ ++# Ensure The ENV_DIR environmental var is defined. ++ifndef ICP_ENV_DIR ++$(error ICP_ENV_DIR is undefined. Please set the path to your environment makefile \ ++ "-> setenv ICP_ENV_DIR ") ++endif ++ ++#Add your project environment Makefile ++include $(ICP_ENV_DIR)/environment.mk ++ ++#include the makefile with all the default and common Make variable definitions ++include $(ICP_BUILDSYSTEM_PATH)/build_files/common.mk ++ ++#Add the name for the executable, Library or Module output definitions ++OUTPUT_NAME= icp_ocf ++ ++# List of Source Files to be compiled ++SOURCES= icp_common.c icp_sym.c icp_asym.c ++ ++#common includes between all supported OSes ++INCLUDES= -I $(ICP_API_DIR) -I$(ICP_LAC_API) \ ++-I$(ICP_OCF_SRC_DIR) ++ ++# The location of the os level makefile needs to be changed. ++include $(ICP_ENV_DIR)/$(ICP_OS)_$(ICP_OS_LEVEL).mk ++ ++# On the line directly below list the outputs you wish to build for, ++# e.g "lib_static lib_shared exe module" as show below ++install: module ++ ++###################Include rules makefiles######################## ++include $(ICP_BUILDSYSTEM_PATH)/build_files/rules.mk ++###################End of Rules inclusion######################### ++ ++ +--- /dev/null +++ b/crypto/ocf/pasemi/Makefile @@ -0,0 +1,12 @@ +# for SGlinux builds @@ -486,7 +577,7 @@ + --- /dev/null +++ b/crypto/ocf/Config.in -@@ -0,0 +1,32 @@ +@@ -0,0 +1,34 @@ +############################################################################# + +mainmenu_option next_comment @@ -512,6 +603,8 @@ + CONFIG_OCF_TALITOS $CONFIG_OCF_OCF +dep_tristate ' pasemi (HW crypto engine)' \ + CONFIG_OCF_PASEMI $CONFIG_OCF_OCF ++dep_tristate ' ep80579 (HW crypto engine)' \ ++ CONFIG_OCF_EP80579 $CONFIG_OCF_OCF +dep_tristate ' ocfnull (does no crypto)' \ + CONFIG_OCF_OCFNULL $CONFIG_OCF_OCF +dep_tristate ' ocf-bench (HW crypto in-kernel benchmark)' \ @@ -521,7 +614,7 @@ +############################################################################# --- /dev/null +++ b/crypto/ocf/Kconfig -@@ -0,0 +1,95 @@ +@@ -0,0 +1,101 @@ +menu "OCF Configuration" + +config OCF_OCF @@ -597,10 +690,16 @@ + OCF driver for Freescale's security engine (SEC/talitos). + +config OCF_PASEMI -+ tristate "pasemi (HW crypto engine)" -+ depends on OCF_OCF && PPC_PASEMI -+ help -+ OCF driver for for PA Semi PWRficient DMA Engine ++ tristate "pasemi (HW crypto engine)" ++ depends on OCF_OCF && PPC_PASEMI ++ help ++ OCF driver for the PA Semi PWRficient DMA Engine ++ ++config OCF_EP80579 ++ tristate "ep80579 (HW crypto engine)" ++ depends on OCF_OCF ++ help ++ OCF driver for the Intel EP80579 Integrated Processor Product Line. + +config OCF_OCFNULL + tristate "ocfnull (fake crypto engine)" @@ -619,7 +718,7 @@ +endmenu --- /dev/null +++ b/crypto/ocf/README -@@ -0,0 +1,166 @@ +@@ -0,0 +1,167 @@ +README - ocf-linux-20071215 +--------------------------- + @@ -643,7 +742,7 @@ + + cd linux-2.4*; gunzip < ocf-linux-24-XXXXXXXX.patch.gz | patch -p1 + cd linux-2.6*; gunzip < ocf-linux-26-XXXXXXXX.patch.gz | patch -p1 -+ ++ + if you do one of the above, then you can proceed to the next step, + or you can do the above process by hand with using the patches against + linux-2.4.35 and 2.6.23 to include the ocf code under crypto/ocf. @@ -656,17 +755,18 @@ + cd .. + patch -p1 < crypto/ocf/patches/linux-2.4.35-ocf.patch + -+ for 2.6.23 (and later) ++ for 2.6.23 (and later), find the kernel patch specific (or nearest) ++ to your kernel versions and then: + -+ cd linux-2.6.23/crypto ++ cd linux-2.6.NN/crypto + tar xvzf ocf-linux.tar.gz + cd .. -+ patch -p1 < crypto/ocf/patches/linux-2.6.23-ocf.patch ++ patch -p1 < crypto/ocf/patches/linux-2.6.NN-ocf.patch + + It should be easy to take this patch and apply it to other more + recent versions of the kernels. The same patches should also work + relatively easily on kernels as old as 2.6.11 and 2.4.18. -+ ++ + * under 2.4 if you are on a non-x86 platform, you may need to: + + cp linux-2.X.x/include/asm-i386/kmap_types.h linux-2.X.x/include/asm-YYY @@ -686,7 +786,7 @@ + + /usr/include/crypto/cryptodev.h + -+ * patch your openssl-0.9.8g code with the openssl-0.9.8g.patch. ++ * patch your openssl-0.9.8i code with the openssl-0.9.8i.patch. + (NOTE: there is no longer a need to patch ssh). The patch is against: + openssl-0_9_8e + @@ -694,7 +794,7 @@ + to older OCF releases. This patch is unlikely to work on older + openssl versions. + -+ openssl-0.9.8g.patch ++ openssl-0.9.8i.patch + - enables --with-cryptodev for non BSD systems + - adds -cpu option to openssl speed for calculating CPU load + under linux @@ -869,7 +969,7 @@ + * MAX_COMMAND = base command + mac command + encrypt command + + * mac-key + rc4-key + * MAX_RESULT = base result + mac result + mac + encrypt result -+ * ++ * + * + */ +#define HIFN_MAX_COMMAND (8 + 8 + 8 + 64 + 260) @@ -1227,7 +1327,7 @@ + + +/********************************************************************* -+ * Structs for board commands ++ * Structs for board commands + * + *********************************************************************/ + @@ -1437,7 +1537,7 @@ + + /* + * Our current positions for insertion and removal from the desriptor -+ * rings. ++ * rings. + */ + int cmdi, srci, dsti, resi; + volatile int cmdu, srcu, dstu, resu; @@ -1559,7 +1659,7 @@ + * + * session_num + * ----------- -+ * A number between 0 and 2048 (for DRAM models) or a number between ++ * A number between 0 and 2048 (for DRAM models) or a number between + * 0 and 768 (for SRAM models). Those who don't want to use session + * numbers should leave value at zero and send a new crypt key and/or + * new MAC key on every command. If you use session numbers and @@ -1573,7 +1673,7 @@ + * ---- + * Either fill in the mbuf pointer and npa=0 or + * fill packp[] and packl[] and set npa to > 0 -+ * ++ * + * mac_header_skip + * --------------- + * The number of bytes of the source_buf that are skipped over before @@ -1661,7 +1761,7 @@ + * 0 for success, negative values on error + * + * Defines for negative error codes are: -+ * ++ * + * HIFN_CRYPTO_BAD_INPUT : The passed in command had invalid settings. + * HIFN_CRYPTO_RINGS_FULL : All DMA rings were full and non-blocking + * behaviour was requested. @@ -2465,7 +2565,7 @@ + sc->sc_dmaier |= HIFN_DMAIER_PUBDONE; + WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier); +#ifdef HIFN_VULCANDEV -+ sc->sc_pkdev = make_dev(&vulcanpk_cdevsw, 0, ++ sc->sc_pkdev = make_dev(&vulcanpk_cdevsw, 0, + UID_ROOT, GID_WHEEL, 0666, + "vulcanpk"); + sc->sc_pkdev->si_drv1 = sc; @@ -2664,7 +2764,7 @@ + * "hifn_enable_crypto" is called to enable it. The check is important, + * as enabling crypto twice will lock the board. + */ -+static int ++static int +hifn_enable_crypto(struct hifn_softc *sc) +{ + u_int32_t dmacfg, ramcfg, encl, addr, i; @@ -2756,7 +2856,7 @@ + * Give initial values to the registers listed in the "Register Space" + * section of the HIFN Software Development reference manual. + */ -+static void ++static void +hifn_init_pci_registers(struct hifn_softc *sc) +{ + DPRINTF("%s()\n", __FUNCTION__); @@ -3141,7 +3241,7 @@ +/* + * Initialize the descriptor rings. + */ -+static void ++static void +hifn_init_dma(struct hifn_softc *sc) +{ + struct hifn_dma *dma = sc->sc_dma; @@ -3429,10 +3529,10 @@ + dma->srci = idx; + dma->srcu += src->nsegs; + return (idx); -+} ++} + + -+static int ++static int +hifn_crypto( + struct hifn_softc *sc, + struct hifn_command *cmd, @@ -4301,7 +4401,7 @@ + cmd->cklen = enccrd->crd_klen >> 3; + cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY; + -+ /* ++ /* + * Need to specify the size for the AES key in the masks. + */ + if ((cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) == @@ -4858,9 +4958,9 @@ +static ssize_t +cryptoid_show(struct device *dev, + struct device_attribute *attr, -+ char *buf) -+{ -+ struct hipp_softc *sc; ++ char *buf) ++{ ++ struct hipp_softc *sc; + + sc = pci_get_drvdata(to_pci_dev (dev)); + return sprintf (buf, "%d\n", sc->sc_cid); @@ -4992,13 +5092,13 @@ + crypto_unregister_all(sc->sc_cid); + if (sc->sc_irq != -1) + free_irq(sc->sc_irq, sc); -+ ++ +#if 0 + if (sc->sc_dma) { + /* Turn off DMA polling */ + WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET | + HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE); -+ ++ + pci_free_consistent(sc->sc_pcidev, + sizeof(*sc->sc_dma), + sc->sc_dma, sc->sc_dma_physaddr); @@ -5151,7 +5251,7 @@ @@ -0,0 +1,93 @@ +/* + * Hifn HIPP-I/HIPP-II (7855/8155) driver. -+ * Copyright (c) 2006 Michael Richardson * ++ * Copyright (c) 2006 Michael Richardson * + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions @@ -5374,7 +5474,7 @@ + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, -+ 0, 0, 0, 0, 0, 0, 0, 0, ++ 0, 0, 0, 0, 0, 0, 0, 0, +}; + +static void md5_calc(u_int8_t *, md5_ctxt *); @@ -5409,7 +5509,7 @@ + for (i = gap; i + MD5_BUFLEN <= len; i += MD5_BUFLEN) { + md5_calc((u_int8_t *)(input + i), ctxt); + } -+ ++ + ctxt->md5_i = len - i; + bcopy((void *)(input + i), (void *)ctxt->md5_buf, ctxt->md5_i); + } else { @@ -5424,7 +5524,7 @@ +{ + u_int gap; + -+ /* Don't count up padding. Keep md5_n. */ ++ /* Don't count up padding. Keep md5_n. */ + gap = MD5_BUFLEN - ctxt->md5_i; + if (gap > 8) { + bcopy(md5_paddat, @@ -5440,7 +5540,7 @@ + MD5_BUFLEN - sizeof(ctxt->md5_n)); + } + -+ /* 8 byte word */ ++ /* 8 byte word */ +#if BYTE_ORDER == LITTLE_ENDIAN + bcopy(&ctxt->md5_n8[0], &ctxt->md5_buf[56], 8); +#endif @@ -5488,7 +5588,7 @@ + u_int32_t D = ctxt->md5_std; +#if BYTE_ORDER == LITTLE_ENDIAN + u_int32_t *X = (u_int32_t *)b64; -+#endif ++#endif +#if BYTE_ORDER == BIG_ENDIAN + /* 4 byte words */ + /* what a brute force but fast! */ @@ -5520,7 +5620,7 @@ + ROUND1(C, D, A, B, 10, Sc, 11); ROUND1(B, C, D, A, 11, Sd, 12); + ROUND1(A, B, C, D, 12, Sa, 13); ROUND1(D, A, B, C, 13, Sb, 14); + ROUND1(C, D, A, B, 14, Sc, 15); ROUND1(B, C, D, A, 15, Sd, 16); -+ ++ + ROUND2(A, B, C, D, 1, Se, 17); ROUND2(D, A, B, C, 6, Sf, 18); + ROUND2(C, D, A, B, 11, Sg, 19); ROUND2(B, C, D, A, 0, Sh, 20); + ROUND2(A, B, C, D, 5, Se, 21); ROUND2(D, A, B, C, 10, Sf, 22); @@ -5538,14 +5638,14 @@ + ROUND3(C, D, A, B, 3, Sk, 43); ROUND3(B, C, D, A, 6, Sl, 44); + ROUND3(A, B, C, D, 9, Si, 45); ROUND3(D, A, B, C, 12, Sj, 46); + ROUND3(C, D, A, B, 15, Sk, 47); ROUND3(B, C, D, A, 2, Sl, 48); -+ -+ ROUND4(A, B, C, D, 0, Sm, 49); ROUND4(D, A, B, C, 7, Sn, 50); -+ ROUND4(C, D, A, B, 14, So, 51); ROUND4(B, C, D, A, 5, Sp, 52); -+ ROUND4(A, B, C, D, 12, Sm, 53); ROUND4(D, A, B, C, 3, Sn, 54); -+ ROUND4(C, D, A, B, 10, So, 55); ROUND4(B, C, D, A, 1, Sp, 56); -+ ROUND4(A, B, C, D, 8, Sm, 57); ROUND4(D, A, B, C, 15, Sn, 58); -+ ROUND4(C, D, A, B, 6, So, 59); ROUND4(B, C, D, A, 13, Sp, 60); -+ ROUND4(A, B, C, D, 4, Sm, 61); ROUND4(D, A, B, C, 11, Sn, 62); ++ ++ ROUND4(A, B, C, D, 0, Sm, 49); ROUND4(D, A, B, C, 7, Sn, 50); ++ ROUND4(C, D, A, B, 14, So, 51); ROUND4(B, C, D, A, 5, Sp, 52); ++ ROUND4(A, B, C, D, 12, Sm, 53); ROUND4(D, A, B, C, 3, Sn, 54); ++ ROUND4(C, D, A, B, 10, So, 55); ROUND4(B, C, D, A, 1, Sp, 56); ++ ROUND4(A, B, C, D, 8, Sm, 57); ROUND4(D, A, B, C, 15, Sn, 58); ++ ROUND4(C, D, A, B, 6, So, 59); ROUND4(B, C, D, A, 13, Sp, 60); ++ ROUND4(A, B, C, D, 4, Sm, 61); ROUND4(D, A, B, C, 11, Sn, 62); + ROUND4(C, D, A, B, 2, So, 63); ROUND4(B, C, D, A, 9, Sp, 64); + + ctxt->md5_sta += A; @@ -6004,7 +6104,7 @@ + sc->sc_needwakeup &= ~wakeup; + crypto_unblock(sc->sc_cid, wakeup); + } -+ ++ + return IRQ_HANDLED; +} + @@ -6540,7 +6640,7 @@ + /* + * Tell the hardware to copy the header to the output. + * The header is defined as the data from the end of -+ * the bypass to the start of data to be encrypted. ++ * the bypass to the start of data to be encrypted. + * Typically this is the inline IV. Note that you need + * to do this even if src+dst are the same; it appears + * that w/o this bit the crypted data is written @@ -6639,7 +6739,7 @@ + * destination wil result in a + * destination particle list that does + * the necessary scatter DMA. -+ */ ++ */ + safestats.st_iovnotuniform++; + err = EINVAL; + goto errout; @@ -6752,7 +6852,7 @@ + pci_unmap_operand(sc, &re->re_dst); + pci_unmap_operand(sc, &re->re_src); + -+ /* ++ /* + * If result was written to a differet mbuf chain, swap + * it in as the return value and reclaim the original. + */ @@ -6802,14 +6902,14 @@ + */ + re->re_sastate.sa_saved_indigest[0] = + cpu_to_be32(re->re_sastate.sa_saved_indigest[0]); -+ re->re_sastate.sa_saved_indigest[1] = ++ re->re_sastate.sa_saved_indigest[1] = + cpu_to_be32(re->re_sastate.sa_saved_indigest[1]); + re->re_sastate.sa_saved_indigest[2] = + cpu_to_be32(re->re_sastate.sa_saved_indigest[2]); + } else { + re->re_sastate.sa_saved_indigest[0] = + cpu_to_le32(re->re_sastate.sa_saved_indigest[0]); -+ re->re_sastate.sa_saved_indigest[1] = ++ re->re_sastate.sa_saved_indigest[1] = + cpu_to_le32(re->re_sastate.sa_saved_indigest[1]); + re->re_sastate.sa_saved_indigest[2] = + cpu_to_le32(re->re_sastate.sa_saved_indigest[2]); @@ -6851,7 +6951,7 @@ + * status reg in the read in case it is initialized. Then read + * the data register until it changes from the first read. + * Once it changes read the data register until it changes -+ * again. At this time the RNG is considered initialized. ++ * again. At this time the RNG is considered initialized. + * This could take between 750ms - 1000ms in time. + */ + i = 0; @@ -6889,7 +6989,7 @@ +{ + DPRINTF(("%s()\n", __FUNCTION__)); + -+ WRITE_REG(sc, SAFE_RNG_CTRL, ++ WRITE_REG(sc, SAFE_RNG_CTRL, + READ_REG(sc, SAFE_RNG_CTRL) | SAFE_RNG_CTRL_SHORTEN); +} + @@ -6911,7 +7011,7 @@ + int i, rc; + + DPRINTF(("%s()\n", __FUNCTION__)); -+ ++ + safestats.st_rng++; + /* + * Fetch the next block of data. @@ -7131,9 +7231,9 @@ +#endif + + crp = (struct cryptop *)re->re_crp; -+ ++ + re->re_desc.d_csr = 0; -+ ++ + crp->crp_etype = EFAULT; + crypto_done(crp); + return(0); @@ -7295,7 +7395,7 @@ + ((base_bits + 7) / 8) - 1; + modp = krp->krp_param[SAFE_CRK_PARAM_MOD].crp_p + + ((mod_bits + 7) / 8) - 1; -+ ++ + for (i = 0; i < (mod_bits + 7) / 8; i++, basep--, modp--) { + if (*modp < *basep) + goto too_small; @@ -8695,7 +8795,7 @@ +#define SAFE_SA_CMD1_AES192 0x03000000 /* 192-bit AES key */ +#define SAFE_SA_CMD1_AES256 0x04000000 /* 256-bit AES key */ + -+/* ++/* + * Security Associate State Record (Rev 1). + */ +struct safe_sastate { @@ -10642,7 +10742,7 @@ + + /* XXX flush queues??? */ + -+ /* ++ /* + * Reclaim dynamically allocated resources. + */ + if (crypto_drivers != NULL) @@ -11001,12 +11101,12 @@ + * The Freescale SEC (also known as 'talitos') resides on the + * internal bus, and runs asynchronous to the processor core. It has + * a wide gamut of cryptographic acceleration features, including single- -+ * pass IPsec (also known as algorithm chaining). To properly utilize -+ * all of the SEC's performance enhancing features, further reworking ++ * pass IPsec (also known as algorithm chaining). To properly utilize ++ * all of the SEC's performance enhancing features, further reworking + * of higher level code (framework, applications) will be necessary. + * + * The following table shows which SEC version is present in which devices: -+ * ++ * + * Devices SEC version + * + * 8272, 8248 SEC 1.0 @@ -11050,13 +11150,13 @@ + * + * Channel ch0 may drive an aes operation to the aes unit (AESU), + * and, at the same time, ch1 may drive a message digest operation -+ * to the mdeu. Each channel has an input descriptor FIFO, and the ++ * to the mdeu. Each channel has an input descriptor FIFO, and the + * FIFO can contain, e.g. on the 8541E, up to 24 entries, before a + * a buffer overrun error is triggered. The controller is responsible -+ * for fetching the data from descriptor pointers, and passing the -+ * data to the appropriate EUs. The controller also writes the -+ * cryptographic operation's result to memory. The SEC notifies -+ * completion by triggering an interrupt and/or setting the 1st byte ++ * for fetching the data from descriptor pointers, and passing the ++ * data to the appropriate EUs. The controller also writes the ++ * cryptographic operation's result to memory. The SEC notifies ++ * completion by triggering an interrupt and/or setting the 1st byte + * of the hdr field to 0xff. + * + * TODO: @@ -11093,7 +11193,7 @@ +#include +#include + -+#define DRV_NAME "talitos" ++#define DRV_NAME "talitos" + +#include "talitos_dev.h" +#include "talitos_soft.h" @@ -11108,7 +11208,7 @@ +static int talitos_freesession(device_t dev, u_int64_t tid); +static int talitos_process(device_t dev, struct cryptop *crp, int hint); +static void dump_talitos_status(struct talitos_softc *sc); -+static int talitos_submit(struct talitos_softc *sc, struct talitos_desc *td, ++static int talitos_submit(struct talitos_softc *sc, struct talitos_desc *td, + int chsel); +static void talitos_doneprocessing(struct talitos_softc *sc); +static void talitos_init_device(struct talitos_softc *sc); @@ -11166,26 +11266,26 @@ + v_hi = talitos_read(sc->sc_base_addr + TALITOS_ISR_HI); + printk(KERN_INFO "%s: ISR 0x%08x_%08x\n", + device_get_nameunit(sc->sc_cdev), v, v_hi); -+ for (i = 0; i < sc->sc_num_channels; i++) { -+ v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + ++ for (i = 0; i < sc->sc_num_channels; i++) { ++ v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + + TALITOS_CH_CDPR); -+ v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + ++ v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + + TALITOS_CH_CDPR_HI); -+ printk(KERN_INFO "%s: CDPR ch%d 0x%08x_%08x\n", ++ printk(KERN_INFO "%s: CDPR ch%d 0x%08x_%08x\n", + device_get_nameunit(sc->sc_cdev), i, v, v_hi); + } -+ for (i = 0; i < sc->sc_num_channels; i++) { -+ v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + ++ for (i = 0; i < sc->sc_num_channels; i++) { ++ v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + + TALITOS_CH_CCPSR); -+ v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + ++ v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + + TALITOS_CH_CCPSR_HI); -+ printk(KERN_INFO "%s: CCPSR ch%d 0x%08x_%08x\n", ++ printk(KERN_INFO "%s: CCPSR ch%d 0x%08x_%08x\n", + device_get_nameunit(sc->sc_cdev), i, v, v_hi); + } + ptr = sc->sc_base_addr + TALITOS_CH_DESCBUF; -+ for (i = 0; i < 16; i++) { ++ for (i = 0; i < 16; i++) { + v = talitos_read(ptr++); v_hi = talitos_read(ptr++); -+ printk(KERN_INFO "%s: DESCBUF ch0 0x%08x_%08x (tdp%02d)\n", ++ printk(KERN_INFO "%s: DESCBUF ch0 0x%08x_%08x (tdp%02d)\n", + device_get_nameunit(sc->sc_cdev), v, v_hi, i); + } + return; @@ -11193,7 +11293,7 @@ + + +#ifdef CONFIG_OCF_RANDOMHARVEST -+/* ++/* + * pull random numbers off the RNG FIFO, not exceeding amount available + */ +static int @@ -11213,7 +11313,7 @@ + return 0; + } + /* -+ * OFL is number of available 64-bit words, ++ * OFL is number of available 64-bit words, + * shift and convert to a 32-bit word count + */ + v = talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI); @@ -11221,16 +11321,16 @@ + if (maxwords > v) + maxwords = v; + for (rc = 0; rc < maxwords; rc++) { -+ buf[rc] = talitos_read(sc->sc_base_addr + ++ buf[rc] = talitos_read(sc->sc_base_addr + + TALITOS_RNG_FIFO + rc*sizeof(u_int32_t)); + } + if (maxwords & 1) { -+ /* ++ /* + * RNG will complain with an AE in the RNGISR + * if we don't complete the pairs of 32-bit reads + * to its 64-bit register based FIFO + */ -+ v = talitos_read(sc->sc_base_addr + ++ v = talitos_read(sc->sc_base_addr + + TALITOS_RNG_FIFO + rc*sizeof(u_int32_t)); + } + @@ -11247,18 +11347,18 @@ + v = talitos_read(sc->sc_base_addr + TALITOS_RNGRCR_HI); + v |= TALITOS_RNGRCR_HI_SR; + talitos_write(sc->sc_base_addr + TALITOS_RNGRCR_HI, v); -+ while ((talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI) ++ while ((talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI) + & TALITOS_RNGSR_HI_RD) == 0) + cpu_relax(); + /* + * we tell the RNG to start filling the RNG FIFO -+ * by writing the RNGDSR ++ * by writing the RNGDSR + */ + v = talitos_read(sc->sc_base_addr + TALITOS_RNGDSR_HI); + talitos_write(sc->sc_base_addr + TALITOS_RNGDSR_HI, v); + /* -+ * 64 bits of data will be pushed onto the FIFO every -+ * 256 SEC cycles until the FIFO is full. The RNG then ++ * 64 bits of data will be pushed onto the FIFO every ++ * 256 SEC cycles until the FIFO is full. The RNG then + * attempts to keep the FIFO full. + */ + v = talitos_read(sc->sc_base_addr + TALITOS_RNGISR_HI); @@ -11268,7 +11368,7 @@ + return; + } + /* -+ * n.b. we need to add a FIPS test here - if the RNG is going ++ * n.b. we need to add a FIPS test here - if the RNG is going + * to fail, it's going to fail at reset time + */ + return; @@ -11314,7 +11414,7 @@ + } + if (encini == NULL && macini == NULL) + return EINVAL; -+ if (encini) { ++ if (encini) { + /* validate key length */ + switch (encini->cri_alg) { + case CRYPTO_DES_CBC: @@ -11333,7 +11433,7 @@ + return EINVAL; + break; + default: -+ DPRINTF("UNKNOWN encini->cri_alg %d\n", ++ DPRINTF("UNKNOWN encini->cri_alg %d\n", + encini->cri_alg); + return EINVAL; + } @@ -11359,13 +11459,13 @@ + /* allocating session */ + sesn = sc->sc_nsessions; + ses = (struct talitos_session *) kmalloc( -+ (sesn + 1) * sizeof(struct talitos_session), ++ (sesn + 1) * sizeof(struct talitos_session), + SLAB_ATOMIC); + if (ses == NULL) + return ENOMEM; + memset(ses, 0, + (sesn + 1) * sizeof(struct talitos_session)); -+ memcpy(ses, sc->sc_sessions, ++ memcpy(ses, sc->sc_sessions, + sesn * sizeof(struct talitos_session)); + memset(sc->sc_sessions, 0, + sesn * sizeof(struct talitos_session)); @@ -11408,7 +11508,7 @@ + } + } + -+ /* really should make up a template td here, ++ /* really should make up a template td here, + * and only fill things like i/o and direction in process() */ + + /* assign session ID */ @@ -11439,10 +11539,10 @@ +} + +/* -+ * launch device processing - it will come back with done notification -+ * in the form of an interrupt and/or HDR_DONE_BITS in header ++ * launch device processing - it will come back with done notification ++ * in the form of an interrupt and/or HDR_DONE_BITS in header + */ -+static int ++static int +talitos_submit( + struct talitos_softc *sc, + struct talitos_desc *td, @@ -11451,9 +11551,9 @@ + u_int32_t v; + + v = dma_map_single(NULL, td, sizeof(*td), DMA_TO_DEVICE); -+ talitos_write(sc->sc_base_addr + ++ talitos_write(sc->sc_base_addr + + chsel*TALITOS_CH_OFFSET + TALITOS_CH_FF, 0); -+ talitos_write(sc->sc_base_addr + ++ talitos_write(sc->sc_base_addr + + chsel*TALITOS_CH_OFFSET + TALITOS_CH_FF_HI, v); + return 0; +} @@ -11469,7 +11569,7 @@ + struct talitos_desc *td; + unsigned long flags; + /* descriptor mappings */ -+ int hmac_key, hmac_data, cipher_iv, cipher_key, ++ int hmac_key, hmac_data, cipher_iv, cipher_key, + in_fifo, out_fifo, cipher_iv_out; + static int chsel = -1; + @@ -11485,7 +11585,7 @@ + + ses = &sc->sc_sessions[TALITOS_SESSION(crp->crp_sid)]; + -+ /* enter the channel scheduler */ ++ /* enter the channel scheduler */ + spin_lock_irqsave(&sc->sc_chnfifolock[sc->sc_num_channels], flags); + + /* reuse channel that already had/has requests for the required EU */ @@ -11497,19 +11597,19 @@ + /* + * haven't seen this algo the last sc_num_channels or more + * use round robin in this case -+ * nb: sc->sc_num_channels must be power of 2 ++ * nb: sc->sc_num_channels must be power of 2 + */ + chsel = (chsel + 1) & (sc->sc_num_channels - 1); + } else { + /* -+ * matches channel with same target execution unit; ++ * matches channel with same target execution unit; + * use same channel in this case + */ + chsel = i; + } + sc->sc_chnlastalg[chsel] = crp->crp_desc->crd_alg; + -+ /* release the channel scheduler lock */ ++ /* release the channel scheduler lock */ + spin_unlock_irqrestore(&sc->sc_chnfifolock[sc->sc_num_channels], flags); + + /* acquire the selected channel fifo lock */ @@ -11518,7 +11618,7 @@ + /* find and reserve next available descriptor-cryptop pair */ + for (i = 0; i < sc->sc_chfifo_len; i++) { + if (sc->sc_chnfifo[chsel][i].cf_desc.hdr == 0) { -+ /* ++ /* + * ensure correct descriptor formation by + * avoiding inadvertently setting "optional" entries + * e.g. not using "optional" dptr2 for MD/HMAC descs @@ -11526,7 +11626,7 @@ + memset(&sc->sc_chnfifo[chsel][i].cf_desc, + 0, sizeof(*td)); + /* reserve it with done notification request bit */ -+ sc->sc_chnfifo[chsel][i].cf_desc.hdr |= ++ sc->sc_chnfifo[chsel][i].cf_desc.hdr |= + TALITOS_DONE_NOTIFY; + break; + } @@ -11538,7 +11638,7 @@ + err = ERESTART; + goto errout; + } -+ ++ + td = &sc->sc_chnfifo[chsel][i].cf_desc; + sc->sc_chnfifo[chsel][i].cf_crp = crp; + @@ -11633,10 +11733,10 @@ + err = EINVAL; + goto errout; + } -+ td->ptr[in_fifo].ptr = dma_map_single(NULL, skb->data, ++ td->ptr[in_fifo].ptr = dma_map_single(NULL, skb->data, + skb->len, DMA_TO_DEVICE); + td->ptr[in_fifo].len = skb->len; -+ td->ptr[out_fifo].ptr = dma_map_single(NULL, skb->data, ++ td->ptr[out_fifo].ptr = dma_map_single(NULL, skb->data, + skb->len, DMA_TO_DEVICE); + td->ptr[out_fifo].len = skb->len; + td->ptr[hmac_data].ptr = dma_map_single(NULL, skb->data, @@ -11709,7 +11809,7 @@ + * copy both the header+IV. + */ + if (enccrd->crd_flags & CRD_F_ENCRYPT) { -+ td->hdr |= TALITOS_DIR_OUTBOUND; ++ td->hdr |= TALITOS_DIR_OUTBOUND; + if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) + iv = enccrd->crd_iv; + else @@ -11719,7 +11819,7 @@ + enccrd->crd_inject, ivsize, iv); + } + } else { -+ td->hdr |= TALITOS_DIR_INBOUND; ++ td->hdr |= TALITOS_DIR_INBOUND; + if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) { + iv = enccrd->crd_iv; + bcopy(enccrd->crd_iv, iv, ivsize); @@ -11729,7 +11829,7 @@ + enccrd->crd_inject, ivsize, iv); + } + } -+ td->ptr[cipher_iv].ptr = dma_map_single(NULL, iv, ivsize, ++ td->ptr[cipher_iv].ptr = dma_map_single(NULL, iv, ivsize, + DMA_TO_DEVICE); + td->ptr[cipher_iv].len = ivsize; + /* @@ -11747,16 +11847,16 @@ + | TALITOS_MODE1_MDEU_INIT + | TALITOS_MODE1_MDEU_PAD; + switch (maccrd->crd_alg) { -+ case CRYPTO_MD5: ++ case CRYPTO_MD5: + td->hdr |= TALITOS_MODE1_MDEU_MD5; + break; -+ case CRYPTO_MD5_HMAC: ++ case CRYPTO_MD5_HMAC: + td->hdr |= TALITOS_MODE1_MDEU_MD5_HMAC; + break; -+ case CRYPTO_SHA1: ++ case CRYPTO_SHA1: + td->hdr |= TALITOS_MODE1_MDEU_SHA1; + break; -+ case CRYPTO_SHA1_HMAC: ++ case CRYPTO_SHA1_HMAC: + td->hdr |= TALITOS_MODE1_MDEU_SHA1_HMAC; + break; + default: @@ -11773,7 +11873,7 @@ + * crypt data is the difference in the skips. + */ + /* ipsec only for now */ -+ td->ptr[hmac_key].ptr = dma_map_single(NULL, ++ td->ptr[hmac_key].ptr = dma_map_single(NULL, + ses->ses_hmac, ses->ses_hmac_len, DMA_TO_DEVICE); + td->ptr[hmac_key].len = ses->ses_hmac_len; + td->ptr[in_fifo].ptr += enccrd->crd_skip; @@ -11782,7 +11882,7 @@ + td->ptr[out_fifo].len = enccrd->crd_len; + /* bytes of HMAC to postpend to ciphertext */ + td->ptr[out_fifo].extent = ses->ses_mlen; -+ td->ptr[hmac_data].ptr += maccrd->crd_skip; ++ td->ptr[hmac_data].ptr += maccrd->crd_skip; + td->ptr[hmac_data].len = enccrd->crd_skip - maccrd->crd_skip; + } + if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT) { @@ -11796,22 +11896,22 @@ + | TALITOS_MODE0_MDEU_INIT + | TALITOS_MODE0_MDEU_PAD; + switch (maccrd->crd_alg) { -+ case CRYPTO_MD5: ++ case CRYPTO_MD5: + td->hdr |= TALITOS_MODE0_MDEU_MD5; + DPRINTF("MD5 ses %d ch %d len %d\n", -+ (u32)TALITOS_SESSION(crp->crp_sid), ++ (u32)TALITOS_SESSION(crp->crp_sid), + chsel, td->ptr[in_fifo].len); + break; -+ case CRYPTO_MD5_HMAC: ++ case CRYPTO_MD5_HMAC: + td->hdr |= TALITOS_MODE0_MDEU_MD5_HMAC; + break; -+ case CRYPTO_SHA1: ++ case CRYPTO_SHA1: + td->hdr |= TALITOS_MODE0_MDEU_SHA1; + DPRINTF("SHA1 ses %d ch %d len %d\n", -+ (u32)TALITOS_SESSION(crp->crp_sid), ++ (u32)TALITOS_SESSION(crp->crp_sid), + chsel, td->ptr[in_fifo].len); + break; -+ case CRYPTO_SHA1_HMAC: ++ case CRYPTO_SHA1_HMAC: + td->hdr |= TALITOS_MODE0_MDEU_SHA1_HMAC; + break; + default: @@ -11826,16 +11926,16 @@ + + if ((maccrd->crd_alg == CRYPTO_MD5_HMAC) || + (maccrd->crd_alg == CRYPTO_SHA1_HMAC)) { -+ td->ptr[hmac_key].ptr = dma_map_single(NULL, -+ ses->ses_hmac, ses->ses_hmac_len, ++ td->ptr[hmac_key].ptr = dma_map_single(NULL, ++ ses->ses_hmac, ses->ses_hmac_len, + DMA_TO_DEVICE); + td->ptr[hmac_key].len = ses->ses_hmac_len; + } -+ } ++ } + else { + /* using process key (session data has duplicate) */ -+ td->ptr[cipher_key].ptr = dma_map_single(NULL, -+ enccrd->crd_key, (enccrd->crd_klen + 7) / 8, ++ td->ptr[cipher_key].ptr = dma_map_single(NULL, ++ enccrd->crd_key, (enccrd->crd_klen + 7) / 8, + DMA_TO_DEVICE); + td->ptr[cipher_key].len = (enccrd->crd_klen + 7) / 8; + } @@ -11850,8 +11950,8 @@ + return err; +} + -+/* go through all channels descriptors, notifying OCF what has -+ * _and_hasn't_ successfully completed and reset the device ++/* go through all channels descriptors, notifying OCF what has ++ * _and_hasn't_ successfully completed and reset the device + * (otherwise it's up to decoding desc hdrs!) + */ +static void talitos_errorprocessing(struct talitos_softc *sc) @@ -11863,19 +11963,19 @@ + spin_lock_irqsave(&sc->sc_chnfifolock[sc->sc_num_channels], flags); + + if (debug) dump_talitos_status(sc); -+ /* go through descriptors, try and salvage those successfully done, ++ /* go through descriptors, try and salvage those successfully done, + * and EIO those that weren't + */ + for (i = 0; i < sc->sc_num_channels; i++) { + spin_lock_irqsave(&sc->sc_chnfifolock[i], flags); + for (j = 0; j < sc->sc_chfifo_len; j++) { + if (sc->sc_chnfifo[i][j].cf_desc.hdr) { -+ if ((sc->sc_chnfifo[i][j].cf_desc.hdr -+ & TALITOS_HDR_DONE_BITS) ++ if ((sc->sc_chnfifo[i][j].cf_desc.hdr ++ & TALITOS_HDR_DONE_BITS) + != TALITOS_HDR_DONE_BITS) { + /* this one didn't finish */ + /* signify in crp->etype */ -+ sc->sc_chnfifo[i][j].cf_crp->crp_etype ++ sc->sc_chnfifo[i][j].cf_crp->crp_etype + = EIO; + } + } else @@ -11918,8 +12018,8 @@ + spin_lock_irqsave(&sc->sc_chnfifolock[i], flags); + for (j = 0; j < sc->sc_chfifo_len; j++) { + /* descriptor has done bits set? */ -+ if ((sc->sc_chnfifo[i][j].cf_desc.hdr -+ & TALITOS_HDR_DONE_BITS) ++ if ((sc->sc_chnfifo[i][j].cf_desc.hdr ++ & TALITOS_HDR_DONE_BITS) + == TALITOS_HDR_DONE_BITS) { + /* notify ocf */ + crypto_done(sc->sc_chnfifo[i][j].cf_crp); @@ -11947,7 +12047,7 @@ +{ + struct talitos_softc *sc = arg; + u_int32_t v, v_hi; -+ ++ + /* ack */ + v = talitos_read(sc->sc_base_addr + TALITOS_ISR); + v_hi = talitos_read(sc->sc_base_addr + TALITOS_ISR_HI); @@ -11979,11 +12079,11 @@ + + /* init all channels */ + for (i = 0; i < sc->sc_num_channels; i++) { -+ v = talitos_read(sc->sc_base_addr + ++ v = talitos_read(sc->sc_base_addr + + i*TALITOS_CH_OFFSET + TALITOS_CH_CCCR_HI); + v |= TALITOS_CH_CCCR_HI_CDWE + | TALITOS_CH_CCCR_HI_CDIE; /* invoke interrupt if done */ -+ talitos_write(sc->sc_base_addr + ++ talitos_write(sc->sc_base_addr + + i*TALITOS_CH_OFFSET + TALITOS_CH_CCCR_HI, v); + } + /* enable all interrupts */ @@ -12028,13 +12128,13 @@ + + /* + * Master reset -+ * errata documentation: warning: certain SEC interrupts -+ * are not fully cleared by writing the MCR:SWR bit, -+ * set bit twice to completely reset ++ * errata documentation: warning: certain SEC interrupts ++ * are not fully cleared by writing the MCR:SWR bit, ++ * set bit twice to completely reset + */ + talitos_reset_device_master(sc); /* once */ + talitos_reset_device_master(sc); /* and once again */ -+ ++ + /* reset all channels */ + for (i = 0; i < sc->sc_num_channels; i++) { + v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + @@ -12104,7 +12204,7 @@ + rc = request_irq(sc->sc_irq, talitos_intr, 0, + device_get_nameunit(sc->sc_cdev), sc); + if (rc) { -+ printk(KERN_ERR "%s: failed to hook irq %d\n", ++ printk(KERN_ERR "%s: failed to hook irq %d\n", + device_get_nameunit(sc->sc_cdev), sc->sc_irq); + sc->sc_irq = -1; + goto out; @@ -12166,17 +12266,17 @@ + memset(sc->sc_chnlastalg, 0, sc->sc_num_channels * sizeof(int)); + + sc->sc_chnfifo = (struct desc_cryptop_pair **) kmalloc( -+ sc->sc_num_channels * sizeof(struct desc_cryptop_pair *), ++ sc->sc_num_channels * sizeof(struct desc_cryptop_pair *), + GFP_KERNEL); + if (!sc->sc_chnfifo) + goto out; + for (i = 0; i < sc->sc_num_channels; i++) { + sc->sc_chnfifo[i] = (struct desc_cryptop_pair *) kmalloc( -+ sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair), ++ sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair), + GFP_KERNEL); + if (!sc->sc_chnfifo[i]) + goto out; -+ memset(sc->sc_chnfifo[i], 0, ++ memset(sc->sc_chnfifo[i], 0, + sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair)); + } + @@ -12436,7 +12536,7 @@ +#define TALITOS_ID_SEC_2_1 0x40 /* cross ref with IP block revision reg */ + +/* -+ * following num_channels, channel-fifo-depth, exec-unit-mask, and ++ * following num_channels, channel-fifo-depth, exec-unit-mask, and + * descriptor-types-mask are for forward-compatibility with openfirmware + * flat device trees + */ @@ -12464,11 +12564,11 @@ +#define TALITOS_CHFIFOLEN_SEC_2_1 24 +#define TALITOS_CHFIFOLEN_SEC_2_4 24 + -+/* ++/* + * exec-unit-mask : The bitmask representing what Execution Units (EUs) -+ * are available. EU information should be encoded following the SEC's ++ * are available. EU information should be encoded following the SEC's + * EU_SEL0 bitfield documentation, i.e. as follows: -+ * ++ * + * bit 31 = set if SEC permits no-EU selection (should be always set) + * bit 30 = set if SEC has the ARC4 EU (AFEU) + * bit 29 = set if SEC has the des/3des EU (DEU) @@ -12477,7 +12577,7 @@ + * bit 26 = set if SEC has the public key EU (PKEU) + * bit 25 = set if SEC has the aes EU (AESU) + * bit 24 = set if SEC has the Kasumi EU (KEU) -+ * ++ * + */ +#define TALITOS_HAS_EU_NONE (1<<0) +#define TALITOS_HAS_EU_AFEU (1<<1) @@ -12498,8 +12598,8 @@ + +/* + * descriptor-types-mask : The bitmask representing what descriptors -+ * are available. Descriptor type information should be encoded -+ * following the SEC's Descriptor Header Dword DESC_TYPE field ++ * are available. Descriptor type information should be encoded ++ * following the SEC's Descriptor Header Dword DESC_TYPE field + * documentation, i.e. as follows: + * + * bit 0 = set if SEC supports the aesu_ctr_nonsnoop desc. type @@ -12525,7 +12625,7 @@ +#define TALITOS_HAS_DESCTYPES_SEC_2_0 0x01010ebf +#define TALITOS_HAS_DESCTYPES_SEC_2_1 0x012b0ebf + -+/* ++/* + * a TALITOS_xxx_HI address points to the low data bits (32-63) of the register + */ + @@ -12564,7 +12664,7 @@ +#define TALITOS_CH_FF_HI 0x114c /* Fetch FIFO's FETCH_ADRS */ +#define TALITOS_CH_CDPR 0x1140 /* Crypto-Channel Pointer Status Reg */ +#define TALITOS_CH_CDPR_HI 0x1144 /* Crypto-Channel Pointer Status Reg */ -+#define TALITOS_CH_DESCBUF 0x1180 /* (thru 11bf) Crypto-Channel ++#define TALITOS_CH_DESCBUF 0x1180 /* (thru 11bf) Crypto-Channel + * Descriptor Buffer (debug) */ + +/* execution unit register offset addresses and bits */ @@ -12986,7 +13086,7 @@ +#endif + } + } -+ ++ + kfree(buf); + +bad_alloc: @@ -13963,7 +14063,7 @@ + IX_MBUF_MLEN(&q->ixp_q_mbuf) = IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) = + ((IX_MBUF_MLEN(&q->ixp_q_mbuf) * 8) + 72 + 511) / 8; + tbuf = kmalloc(IX_MBUF_MLEN(&q->ixp_q_mbuf), SLAB_ATOMIC); -+ ++ + if (IX_MBUF_MDATA(&q->ixp_q_mbuf) == NULL) { + printk("ixp: kmalloc(%u, SLAB_ATOMIC) failed\n", + IX_MBUF_MLEN(&q->ixp_q_mbuf)); @@ -14530,7 +14630,7 @@ + &q->pkq_op, + ixp_kperform_cb, + &q->pkq_result); -+ ++ + if (status == IX_CRYPTO_ACC_STATUS_SUCCESS) { + dprintk("%s() - ixCryptoAccPkeEauPerform SUCCESS\n", __FUNCTION__); + return; /* callback will return here for callback */ @@ -14827,7 +14927,7 @@ +#include +#include +#include -+#include ++#include +#include +#include +#include @@ -14907,7 +15007,7 @@ + int hid = crid & ~(CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE); + int typ = crid & (CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE); + int caps = 0; -+ ++ + /* if the user hasn't selected a driver, then just call newsession */ + if (hid == 0 && typ != 0) + return 0; @@ -14919,7 +15019,7 @@ + dprintk("%s: hid=%x typ=%x not matched\n", __FUNCTION__, hid, typ); + return EINVAL; + } -+ ++ + /* the user didn't specify SW or HW, so the driver is ok */ + if (typ == 0) + return 0; @@ -15256,7 +15356,7 @@ + } while ((krp->krp_flags & CRYPTO_KF_DONE) == 0); + + dprintk("%s finished WAITING error=%d\n", __FUNCTION__, error); -+ ++ + kop->crk_crid = krp->krp_crid; /* device that did the work */ + if (krp->krp_status != 0) { + error = krp->krp_status; @@ -15330,7 +15430,7 @@ + } + return (0); +} -+ ++ +static struct csession * +cseadd(struct fcrypt *fcr, struct csession *cse) +{ @@ -16008,7 +16108,7 @@ + int mackeylen; /* mac key */ + caddr_t mackey; + -+ u_int32_t ses; /* returns: session # */ ++ u_int32_t ses; /* returns: session # */ +}; + +struct session2_op { @@ -16020,7 +16120,7 @@ + int mackeylen; /* mac key */ + caddr_t mackey; + -+ u_int32_t ses; /* returns: session # */ ++ u_int32_t ses; /* returns: session # */ + int crid; /* driver id + flags (rw) */ + int pad[4]; /* for future expansion */ +}; @@ -16310,7 +16410,7 @@ + * since it does no crypto at all. + * + * Written by David McCullough -+ * Copyright (C) 2006-2007 David McCullough ++ * Copyright (C) 2006-2007 David McCullough + * + * LICENSE TERMS + * @@ -17087,7 +17187,7 @@ + offset_in_page(uiop->uio_iov[sg_num].iov_base+skip)); + sg_len += len; + skip = 0; -+ } else ++ } else + skip -= uiop->uio_iov[sg_num].iov_len; + } + } else { @@ -17104,7 +17204,7 @@ + case SW_TYPE_BLKCIPHER: { + unsigned char iv[EALG_MAX_BLOCK_LEN]; + unsigned char *ivp = iv; -+ int ivsize = ++ int ivsize = + crypto_blkcipher_ivsize(crypto_blkcipher_cast(sw->sw_tfm)); + struct blkcipher_desc desc; + @@ -17205,7 +17305,7 @@ + sw->u.hmac.sw_klen); + crypto_hash_digest(&desc, sg, sg_len, result); +#endif /* #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) */ -+ ++ + } else { /* SW_TYPE_HASH */ + crypto_hash_digest(&desc, sg, sg_len, result); + } @@ -17314,7 +17414,7 @@ + + for (i = CRYPTO_ALGORITHM_MIN; i <= CRYPTO_ALGORITHM_MAX; ++i) + { -+ ++ + algo = crypto_details[i].alg_name; + if (!algo || !*algo) + { @@ -17769,7 +17869,7 @@ +extern int rndtest_buf(unsigned char *buf); --- /dev/null +++ b/crypto/ocf/ocf-compat.h -@@ -0,0 +1,268 @@ +@@ -0,0 +1,270 @@ +#ifndef _BSD_COMPAT_H_ +#define _BSD_COMPAT_H_ 1 +/****************************************************************************/ @@ -17895,7 +17995,9 @@ + +#endif + -+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) ++#include ++#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11) +#define files_fdtable(files) (files) +#endif + @@ -18039,6 +18141,4029 @@ +/****************************************************************************/ +#endif /* _BSD_COMPAT_H_ */ --- /dev/null ++++ b/crypto/ocf/ep80579/icp_asym.c +@@ -0,0 +1,1375 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++#include "icp_ocf.h" ++ ++/*The following define values (containing the word 'INDEX') are used to find ++the index of each input buffer of the crypto_kop struct (see OCF cryptodev.h). ++These values were found through analysis of the OCF OpenSSL patch. If the ++calling program uses different input buffer positions, these defines will have ++to be changed.*/ ++ ++/*DIFFIE HELLMAN buffer index values*/ ++#define ICP_DH_KRP_PARAM_PRIME_INDEX (0) ++#define ICP_DH_KRP_PARAM_BASE_INDEX (1) ++#define ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX (2) ++#define ICP_DH_KRP_PARAM_RESULT_INDEX (3) ++ ++/*MOD EXP buffer index values*/ ++#define ICP_MOD_EXP_KRP_PARAM_BASE_INDEX (0) ++#define ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX (1) ++#define ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX (2) ++#define ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX (3) ++ ++#define SINGLE_BYTE_VALUE (4) ++ ++/*MOD EXP CRT buffer index values*/ ++#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX (0) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX (1) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX (2) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX (3) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX (4) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX (5) ++#define ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX (6) ++ ++/*DSA sign buffer index values*/ ++#define ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX (0) ++#define ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX (1) ++#define ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX (2) ++#define ICP_DSA_SIGN_KRP_PARAM_G_INDEX (3) ++#define ICP_DSA_SIGN_KRP_PARAM_X_INDEX (4) ++#define ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX (5) ++#define ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX (6) ++ ++/*DSA verify buffer index values*/ ++#define ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX (0) ++#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX (1) ++#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX (2) ++#define ICP_DSA_VERIFY_KRP_PARAM_G_INDEX (3) ++#define ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX (4) ++#define ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX (5) ++#define ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX (6) ++ ++/*DSA sign prime Q vs random number K size check values*/ ++#define DONT_RUN_LESS_THAN_CHECK (0) ++#define FAIL_A_IS_GREATER_THAN_B (1) ++#define FAIL_A_IS_EQUAL_TO_B (1) ++#define SUCCESS_A_IS_LESS_THAN_B (0) ++#define DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS (500) ++ ++/* We need to set a cryptokp success value just in case it is set or allocated ++ and not set to zero outside of this module */ ++#define CRYPTO_OP_SUCCESS (0) ++ ++static int icp_ocfDrvDHComputeKey(struct cryptkop *krp); ++ ++static int icp_ocfDrvModExp(struct cryptkop *krp); ++ ++static int icp_ocfDrvModExpCRT(struct cryptkop *krp); ++ ++static int ++icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck); ++ ++static int icp_ocfDrvDsaSign(struct cryptkop *krp); ++ ++static int icp_ocfDrvDsaVerify(struct cryptkop *krp); ++ ++static void ++icp_ocfDrvDhP1CallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pLocalOctetStringPV); ++ ++static void ++icp_ocfDrvModExpCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pResult); ++ ++static void ++icp_ocfDrvModExpCRTCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pOutputData); ++ ++static void ++icp_ocfDrvDsaVerifyCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaBoolean verifyStatus); ++ ++static void ++icp_ocfDrvDsaRSSignCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, ++ CpaBoolean protocolStatus, ++ CpaFlatBuffer * pR, CpaFlatBuffer * pS); ++ ++/* Name : icp_ocfDrvPkeProcess ++ * ++ * Description : This function will choose which PKE process to follow ++ * based on the input arguments ++ */ ++int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ ++ if (NULL == krp) { ++ DPRINTK("%s(): Invalid input parameters, cryptkop = %p\n", ++ __FUNCTION__, krp); ++ return EINVAL; ++ } ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ switch (krp->krp_op) { ++ case CRK_DH_COMPUTE_KEY: ++ DPRINTK("%s() doing DH_COMPUTE_KEY\n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDHComputeKey(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDHComputeKey failed " ++ "(%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_MOD_EXP: ++ DPRINTK("%s() doing MOD_EXP \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvModExp(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvModExp failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_MOD_EXP_CRT: ++ DPRINTK("%s() doing MOD_EXP_CRT \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvModExpCRT(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvModExpCRT " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_DSA_SIGN: ++ DPRINTK("%s() doing DSA_SIGN \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDsaSign(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDsaSign " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ case CRK_DSA_VERIFY: ++ DPRINTK("%s() doing DSA_VERIFY \n", __FUNCTION__); ++ lacStatus = icp_ocfDrvDsaVerify(krp); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_ocfDrvDsaVerify " ++ "failed (%d).\n", __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ return ECANCELED; ++ } ++ ++ break; ++ ++ default: ++ EPRINTK("%s(): Asymettric function not " ++ "supported (%d).\n", __FUNCTION__, krp->krp_op); ++ krp->krp_status = EOPNOTSUPP; ++ return EOPNOTSUPP; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvSwapBytes ++ * ++ * Description : This function is used to swap the byte order of a buffer. ++ * It has been seen that in general we are passed little endian byte order ++ * buffers, but LAC only accepts big endian byte order buffers. ++ */ ++static void inline ++icp_ocfDrvSwapBytes(u_int8_t * num, u_int32_t buff_len_bytes) ++{ ++ ++ int i; ++ u_int8_t *end_ptr; ++ u_int8_t hold_val; ++ ++ end_ptr = num + (buff_len_bytes - 1); ++ buff_len_bytes = buff_len_bytes >> 1; ++ for (i = 0; i < buff_len_bytes; i++) { ++ hold_val = *num; ++ *num = *end_ptr; ++ num++; ++ *end_ptr = hold_val; ++ end_ptr--; ++ } ++} ++ ++/* Name : icp_ocfDrvDHComputeKey ++ * ++ * Description : This function will map Diffie Hellman calls from OCF ++ * to the LAC API. OCF uses this function for Diffie Hellman Phase1 and ++ * Phase2. LAC has a separate Diffie Hellman Phase2 call, however both phases ++ * break down to a modular exponentiation. ++ */ ++static int icp_ocfDrvDHComputeKey(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ void *callbackTag = NULL; ++ CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL; ++ CpaFlatBuffer *pLocalOctetStringPV = NULL; ++ uint32_t dh_prime_len_bytes = 0, dh_prime_len_bits = 0; ++ ++ /* Input checks - check prime is a multiple of 8 bits to allow for ++ allocation later */ ++ dh_prime_len_bits = ++ (krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_nbits); ++ ++ /* LAC can reject prime lengths based on prime key sizes, we just ++ need to make sure we can allocate space for the base and ++ exponent buffers correctly */ ++ if ((dh_prime_len_bits % NUM_BITS_IN_BYTE) != 0) { ++ APRINTK("%s(): Warning Prime number buffer size is not a " ++ "multiple of 8 bits\n", __FUNCTION__); ++ } ++ ++ /* Result storage space should be the same size as the prime as this ++ value can take up the same amount of storage space */ ++ if (dh_prime_len_bits != ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits) { ++ DPRINTK("%s(): Return Buffer must be the same size " ++ "as the Prime buffer\n", __FUNCTION__); ++ krp->krp_status = EINVAL; ++ return EINVAL; ++ } ++ /* Switch to size in bytes */ ++ BITS_TO_BYTES(dh_prime_len_bytes, dh_prime_len_bits); ++ ++ callbackTag = krp; ++ ++ pPhase1OpData = kmem_cache_zalloc(drvDH_zone, GFP_KERNEL); ++ if (NULL == pPhase1OpData) { ++ APRINTK("%s():Failed to get memory for key gen data\n", ++ __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pLocalOctetStringPV = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pLocalOctetStringPV) { ++ APRINTK("%s():Failed to get memory for pLocalOctetStringPV\n", ++ __FUNCTION__); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ pPhase1OpData->primeP.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_p; ++ ++ pPhase1OpData->primeP.dataLenInBytes = dh_prime_len_bytes; ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->primeP.pData, dh_prime_len_bytes); ++ ++ pPhase1OpData->baseG.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pPhase1OpData->baseG.dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->baseG.pData, ++ pPhase1OpData->baseG.dataLenInBytes); ++ ++ pPhase1OpData->privateValueX.pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pPhase1OpData->privateValueX.dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pPhase1OpData->privateValueX.pData, ++ pPhase1OpData->privateValueX.dataLenInBytes); ++ ++ /* Output parameters */ ++ pLocalOctetStringPV->pData = ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_p; ++ ++ BITS_TO_BYTES(pLocalOctetStringPV->dataLenInBytes, ++ krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits); ++ ++ lacStatus = cpaCyDhKeyGenPhase1(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDhP1CallBack, ++ callbackTag, pPhase1OpData, ++ pLocalOctetStringPV); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DH Phase 1 Key Gen failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvModExp ++ * ++ * Description : This function will map ordinary Modular Exponentiation calls ++ * from OCF to the LAC API. ++ * ++ */ ++static int icp_ocfDrvModExp(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ void *callbackTag = NULL; ++ CpaCyLnModExpOpData *pModExpOpData = NULL; ++ CpaFlatBuffer *pResult = NULL; ++ ++ if ((krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits % ++ NUM_BITS_IN_BYTE) != 0) { ++ DPRINTK("%s(): Warning - modulus buffer size (%d) is not a " ++ "multiple of 8 bits\n", __FUNCTION__, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX]. ++ crp_nbits); ++ } ++ ++ /* Result storage space should be the same size as the prime as this ++ value can take up the same amount of storage space */ ++ if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits > ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_nbits) { ++ APRINTK("%s(): Return Buffer size must be the same or" ++ " greater than the Modulus buffer\n", __FUNCTION__); ++ krp->krp_status = EINVAL; ++ return EINVAL; ++ } ++ ++ callbackTag = krp; ++ ++ pModExpOpData = kmem_cache_zalloc(drvLnModExp_zone, GFP_KERNEL); ++ if (NULL == pModExpOpData) { ++ APRINTK("%s():Failed to get memory for key gen data\n", ++ __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pResult = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pResult) { ++ APRINTK("%s():Failed to get memory for ModExp result\n", ++ __FUNCTION__); ++ kmem_cache_free(drvLnModExp_zone, pModExpOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ pModExpOpData->modulus.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->modulus.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pModExpOpData->modulus.pData, ++ pModExpOpData->modulus.dataLenInBytes); ++ ++ /*OCF patch to Openswan Pluto regularly sends the base value as 2 ++ bits in size. In this case, it has been found it is better to ++ use the base size memory space as the input buffer (if the number ++ is in bits is less than a byte, the number of bits is the input ++ value) */ ++ if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits < ++ NUM_BITS_IN_BYTE) { ++ DPRINTK("%s : base is small (%d)\n", __FUNCTION__, krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits); ++ pModExpOpData->base.dataLenInBytes = SINGLE_BYTE_VALUE; ++ pModExpOpData->base.pData = ++ (uint8_t *) & (krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits); ++ *((uint32_t *) pModExpOpData->base.pData) = ++ htonl(*((uint32_t *) pModExpOpData->base.pData)); ++ ++ } else { ++ ++ DPRINTK("%s : base is big (%d)\n", __FUNCTION__, krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits); ++ pModExpOpData->base.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->base.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(pModExpOpData->base.pData, ++ pModExpOpData->base.dataLenInBytes); ++ } ++ ++ pModExpOpData->exponent.pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].crp_p; ++ BITS_TO_BYTES(pModExpOpData->exponent.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(pModExpOpData->exponent.pData, ++ pModExpOpData->exponent.dataLenInBytes); ++ /* Output parameters */ ++ pResult->pData = ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_p, ++ BITS_TO_BYTES(pResult->dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyLnModExp(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvModExpCallBack, ++ callbackTag, pModExpOpData, pResult); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): Mod Exp Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pResult); ++ kmem_cache_free(drvLnModExp_zone, pModExpOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvModExpCRT ++ * ++ * Description : This function will map ordinary Modular Exponentiation Chinese ++ * Remainder Theorem implementaion calls from OCF to the LAC API. ++ * ++ * Note : Mod Exp CRT for this driver is accelerated through LAC RSA type 2 ++ * decrypt operation. Therefore P and Q input values must always be prime ++ * numbers. Although basic primality checks are done in LAC, it is up to the ++ * user to do any correct prime number checking before passing the inputs. ++ */ ++ ++static int icp_ocfDrvModExpCRT(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyRsaDecryptOpData *rsaDecryptOpData = NULL; ++ void *callbackTag = NULL; ++ CpaFlatBuffer *pOutputData = NULL; ++ ++ /*Parameter input checks are all done by LAC, no need to repeat ++ them here. */ ++ callbackTag = krp; ++ ++ rsaDecryptOpData = kmem_cache_zalloc(drvRSADecrypt_zone, GFP_KERNEL); ++ if (NULL == rsaDecryptOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for MOD EXP CRT Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey ++ = kmem_cache_zalloc(drvRSAPrivateKey_zone, GFP_KERNEL); ++ if (NULL == rsaDecryptOpData->pRecipientPrivateKey) { ++ APRINTK("%s():Failed to get memory for MOD EXP CRT" ++ " private key values struct\n", __FUNCTION__); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ version = CPA_CY_RSA_VERSION_TWO_PRIME; ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2; ++ ++ pOutputData = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pOutputData) { ++ APRINTK("%s():Failed to get memory" ++ " for MOD EXP CRT output data\n", __FUNCTION__); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ rsaDecryptOpData->pRecipientPrivateKey); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ version = CPA_CY_RSA_VERSION_TWO_PRIME; ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2; ++ ++ /* Link parameters */ ++ rsaDecryptOpData->inputData.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->inputData.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->inputData.pData, ++ rsaDecryptOpData->inputData.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime1P.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ prime1P.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime1P.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime1P.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime2Q.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ prime2Q.dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime2Q.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.prime2Q.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2. ++ exponent1Dp.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent1Dp.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.exponent2Dq.dataLenInBytes); ++ ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].crp_p; ++ BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.dataLenInBytes, ++ krp-> ++ krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.pData, ++ rsaDecryptOpData->pRecipientPrivateKey-> ++ privateKeyRep2.coefficientQInv.dataLenInBytes); ++ ++ /* Output Parameter */ ++ pOutputData->pData = ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pOutputData->dataLenInBytes, ++ krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyRsaDecrypt(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvModExpCRTCallBack, ++ callbackTag, rsaDecryptOpData, pOutputData); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): Mod Exp CRT Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pOutputData); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ rsaDecryptOpData->pRecipientPrivateKey); ++ kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvCheckALessThanB ++ * ++ * Description : This function will check whether the first argument is less ++ * than the second. It is used to check whether the DSA RS sign Random K ++ * value is less than the Prime Q value (as defined in the specification) ++ * ++ */ ++static int ++icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck) ++{ ++ ++ uint8_t *MSB_K = pK->pData; ++ uint8_t *MSB_Q = pQ->pData; ++ uint32_t buffer_lengths_in_bytes = pQ->dataLenInBytes; ++ ++ if (DONT_RUN_LESS_THAN_CHECK == *doCheck) { ++ return FAIL_A_IS_GREATER_THAN_B; ++ } ++ ++/*Check MSBs ++if A == B, check next MSB ++if A > B, return A_IS_GREATER_THAN_B ++if A < B, return A_IS_LESS_THAN_B (success) ++*/ ++ while (*MSB_K == *MSB_Q) { ++ MSB_K++; ++ MSB_Q++; ++ ++ buffer_lengths_in_bytes--; ++ if (0 == buffer_lengths_in_bytes) { ++ DPRINTK("%s() Buffers have equal value!!\n", ++ __FUNCTION__); ++ return FAIL_A_IS_EQUAL_TO_B; ++ } ++ ++ } ++ ++ if (*MSB_K < *MSB_Q) { ++ return SUCCESS_A_IS_LESS_THAN_B; ++ } else { ++ return FAIL_A_IS_GREATER_THAN_B; ++ } ++ ++} ++ ++/* Name : icp_ocfDrvDsaSign ++ * ++ * Description : This function will map DSA RS Sign from OCF to the LAC API. ++ * ++ * NOTE: From looking at OCF patch to OpenSSL and even the number of input ++ * parameters, OCF expects us to generate the random seed value. This value ++ * is generated and passed to LAC, however the number is discared in the ++ * callback and not returned to the user. ++ */ ++static int icp_ocfDrvDsaSign(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyDsaRSSignOpData *dsaRsSignOpData = NULL; ++ void *callbackTag = NULL; ++ CpaCyRandGenOpData randGenOpData; ++ int primeQSizeInBytes = 0; ++ int doCheck = 0; ++ CpaFlatBuffer randData; ++ CpaBoolean protocolStatus = CPA_FALSE; ++ CpaFlatBuffer *pR = NULL; ++ CpaFlatBuffer *pS = NULL; ++ ++ callbackTag = krp; ++ ++ BITS_TO_BYTES(primeQSizeInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ if (DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES != primeQSizeInBytes) { ++ APRINTK("%s(): DSA PRIME Q size not equal to the " ++ "FIPS defined 20bytes, = %d\n", ++ __FUNCTION__, primeQSizeInBytes); ++ krp->krp_status = EDOM; ++ return EDOM; ++ } ++ ++ dsaRsSignOpData = kmem_cache_zalloc(drvDSARSSign_zone, GFP_KERNEL); ++ if (NULL == dsaRsSignOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA RS Sign Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ dsaRsSignOpData->K.pData = ++ kmem_cache_alloc(drvDSARSSignKValue_zone, GFP_ATOMIC); ++ ++ if (NULL == dsaRsSignOpData->K.pData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA RS Sign Op Random value\n", __FUNCTION__); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pR = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pR) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA signature R\n", __FUNCTION__); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ pS = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL); ++ if (NULL == pS) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA signature S\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /*link prime number parameter for ease of processing */ ++ dsaRsSignOpData->P.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->P.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->P.pData, ++ dsaRsSignOpData->P.dataLenInBytes); ++ ++ dsaRsSignOpData->Q.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->Q.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->Q.pData, ++ dsaRsSignOpData->Q.dataLenInBytes); ++ ++ /*generate random number with equal buffer size to Prime value Q, ++ but value less than Q */ ++ dsaRsSignOpData->K.dataLenInBytes = dsaRsSignOpData->Q.dataLenInBytes; ++ ++ randGenOpData.generateBits = CPA_TRUE; ++ randGenOpData.lenInBytes = dsaRsSignOpData->K.dataLenInBytes; ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer(dsaRsSignOpData->K.pData, ++ dsaRsSignOpData->K.dataLenInBytes, ++ &randData); ++ ++ doCheck = 0; ++ while (icp_ocfDrvCheckALessThanB(&(dsaRsSignOpData->K), ++ &(dsaRsSignOpData->Q), &doCheck)) { ++ ++ if (CPA_STATUS_SUCCESS ++ != cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, &randGenOpData, &randData)) { ++ APRINTK("%s(): ERROR - Failed to generate DSA RS Sign K" ++ "value\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = EAGAIN; ++ return EAGAIN; ++ } ++ ++ doCheck++; ++ if (DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS == doCheck) { ++ APRINTK("%s(): ERROR - Failed to find DSA RS Sign K " ++ "value less than Q value\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ krp->krp_status = EAGAIN; ++ return EAGAIN; ++ } ++ ++ } ++ /*Rand Data - no need to swap bytes for pK */ ++ ++ /* Link parameters */ ++ dsaRsSignOpData->G.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->G.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_nbits); ++ ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->G.pData, ++ dsaRsSignOpData->G.dataLenInBytes); ++ ++ dsaRsSignOpData->X.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->X.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_nbits); ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->X.pData, ++ dsaRsSignOpData->X.dataLenInBytes); ++ ++ dsaRsSignOpData->M.pData = ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].crp_p; ++ BITS_TO_BYTES(dsaRsSignOpData->M.dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaRsSignOpData->M.pData, ++ dsaRsSignOpData->M.dataLenInBytes); ++ ++ /* Output Parameters */ ++ pS->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pS->dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX]. ++ crp_nbits); ++ ++ pR->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].crp_p; ++ BITS_TO_BYTES(pR->dataLenInBytes, ++ krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX]. ++ crp_nbits); ++ ++ lacStatus = cpaCyDsaSignRS(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDsaRSSignCallBack, ++ callbackTag, dsaRsSignOpData, ++ &protocolStatus, pR, pS); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DSA RS Sign Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ krp->krp_status = ECANCELED; ++ icp_ocfDrvFreeFlatBuffer(pS); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSignKValue_zone, ++ dsaRsSignOpData->K.pData); ++ kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData); ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvDsaVerify ++ * ++ * Description : This function will map DSA RS Verify from OCF to the LAC API. ++ * ++ */ ++static int icp_ocfDrvDsaVerify(struct cryptkop *krp) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyDsaVerifyOpData *dsaVerifyOpData = NULL; ++ void *callbackTag = NULL; ++ CpaBoolean verifyStatus = CPA_FALSE; ++ ++ callbackTag = krp; ++ ++ dsaVerifyOpData = kmem_cache_zalloc(drvDSAVerify_zone, GFP_KERNEL); ++ if (NULL == dsaVerifyOpData) { ++ APRINTK("%s():Failed to get memory" ++ " for DSA Verify Op data struct\n", __FUNCTION__); ++ krp->krp_status = ENOMEM; ++ return ENOMEM; ++ } ++ ++ /* Link parameters */ ++ dsaVerifyOpData->P.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->P.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->P.pData, ++ dsaVerifyOpData->P.dataLenInBytes); ++ ++ dsaVerifyOpData->Q.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->Q.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->Q.pData, ++ dsaVerifyOpData->Q.dataLenInBytes); ++ ++ dsaVerifyOpData->G.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->G.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->G.pData, ++ dsaVerifyOpData->G.dataLenInBytes); ++ ++ dsaVerifyOpData->Y.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->Y.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->Y.pData, ++ dsaVerifyOpData->Y.dataLenInBytes); ++ ++ dsaVerifyOpData->M.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->M.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->M.pData, ++ dsaVerifyOpData->M.dataLenInBytes); ++ ++ dsaVerifyOpData->R.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->R.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->R.pData, ++ dsaVerifyOpData->R.dataLenInBytes); ++ ++ dsaVerifyOpData->S.pData = ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].crp_p; ++ BITS_TO_BYTES(dsaVerifyOpData->S.dataLenInBytes, ++ krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX]. ++ crp_nbits); ++ icp_ocfDrvSwapBytes(dsaVerifyOpData->S.pData, ++ dsaVerifyOpData->S.dataLenInBytes); ++ ++ lacStatus = cpaCyDsaVerify(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvDsaVerifyCallBack, ++ callbackTag, dsaVerifyOpData, &verifyStatus); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): DSA Verify Operation failed (%d).\n", ++ __FUNCTION__, lacStatus); ++ kmem_cache_free(drvDSAVerify_zone, dsaVerifyOpData); ++ krp->krp_status = ECANCELED; ++ } ++ ++ return lacStatus; ++} ++ ++/* Name : icp_ocfDrvReadRandom ++ * ++ * Description : This function will map RNG functionality calls from OCF ++ * to the LAC API. ++ */ ++int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ CpaCyRandGenOpData randGenOpData; ++ CpaFlatBuffer randData; ++ ++ if (NULL == buf) { ++ APRINTK("%s(): Invalid input parameters\n", __FUNCTION__); ++ return EINVAL; ++ } ++ ++ /* maxwords here is number of integers to generate data for */ ++ randGenOpData.generateBits = CPA_TRUE; ++ ++ randGenOpData.lenInBytes = maxwords * sizeof(uint32_t); ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) buf, ++ randGenOpData.lenInBytes, &randData); ++ ++ lacStatus = cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, &randGenOpData, &randData); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): icp_LacSymRandGen failed (%d). \n", ++ __FUNCTION__, lacStatus); ++ return RETURN_RAND_NUM_GEN_FAILED; ++ } ++ ++ return randGenOpData.lenInBytes / sizeof(uint32_t); ++} ++ ++/* Name : icp_ocfDrvDhP1Callback ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DH operation. ++ */ ++static void ++icp_ocfDrvDhP1CallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pLocalOctetStringPV) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pPhase1OpData = (CpaCyDhPhase1KeyGenOpData *) pOpData; ++ ++ if (NULL == pLocalOctetStringPV) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "pLocalOctetStringPV Data is NULL\n", __FUNCTION__); ++ memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData)); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): Diffie Hellman Phase1 Key Gen failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pLocalOctetStringPV->pData, ++ pLocalOctetStringPV->dataLenInBytes); ++ ++ icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV); ++ memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData)); ++ kmem_cache_free(drvDH_zone, pPhase1OpData); ++ ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvModExpCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the Mod Exp operation. ++ */ ++static void ++icp_ocfDrvModExpCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpdata, CpaFlatBuffer * pResult) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyLnModExpOpData *pLnModExpOpData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpdata) { ++ DPRINTK("%s(): Invalid Mod Exp input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pLnModExpOpData = (CpaCyLnModExpOpData *) pOpdata; ++ ++ if (NULL == pResult) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "pResult data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData)); ++ kmem_cache_free(drvLnModExp_zone, pLnModExpOpData); ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): LAC Mod Exp Operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pResult->pData, pResult->dataLenInBytes); ++ ++ /*switch base size value back to original */ ++ if (pLnModExpOpData->base.pData == ++ (uint8_t *) & (krp-> ++ krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX]. ++ crp_nbits)) { ++ *((uint32_t *) pLnModExpOpData->base.pData) = ++ ntohl(*((uint32_t *) pLnModExpOpData->base.pData)); ++ } ++ icp_ocfDrvFreeFlatBuffer(pResult); ++ memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData)); ++ kmem_cache_free(drvLnModExp_zone, pLnModExpOpData); ++ ++ crypto_kdone(krp); ++ ++ return; ++ ++} ++ ++/* Name : icp_ocfDrvModExpCRTCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the Mod Exp CRT operation. ++ */ ++static void ++icp_ocfDrvModExpCRTCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaFlatBuffer * pOutputData) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyRsaDecryptOpData *pDecryptData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pDecryptData = (CpaCyRsaDecryptOpData *) pOpData; ++ ++ if (NULL == pOutputData) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pOutputData is NULL\n", __FUNCTION__); ++ memset(pDecryptData->pRecipientPrivateKey, 0, ++ sizeof(CpaCyRsaPrivateKey)); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ pDecryptData->pRecipientPrivateKey); ++ memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData)); ++ kmem_cache_free(drvRSADecrypt_zone, pDecryptData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ } else { ++ APRINTK("%s(): LAC Mod Exp CRT operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } ++ ++ icp_ocfDrvSwapBytes(pOutputData->pData, pOutputData->dataLenInBytes); ++ ++ icp_ocfDrvFreeFlatBuffer(pOutputData); ++ memset(pDecryptData->pRecipientPrivateKey, 0, ++ sizeof(CpaCyRsaPrivateKey)); ++ kmem_cache_free(drvRSAPrivateKey_zone, ++ pDecryptData->pRecipientPrivateKey); ++ memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData)); ++ kmem_cache_free(drvRSADecrypt_zone, pDecryptData); ++ ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvDsaRSSignCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DSA RS sign operation. ++ */ ++static void ++icp_ocfDrvDsaRSSignCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, ++ CpaBoolean protocolStatus, ++ CpaFlatBuffer * pR, CpaFlatBuffer * pS) ++{ ++ struct cryptkop *krp = NULL; ++ CpaCyDsaRSSignOpData *pSignData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pSignData = (CpaCyDsaRSSignOpData *) pOpData; ++ ++ if (NULL == pR) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pR sign is NULL\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (NULL == pS) { ++ DPRINTK("%s(): Invalid input parameter - " ++ "pS sign is NULL\n", __FUNCTION__); ++ icp_ocfDrvFreeFlatBuffer(pR); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS != status) { ++ APRINTK("%s(): LAC DSA RS Sign operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } else { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ ++ if (CPA_TRUE != protocolStatus) { ++ DPRINTK("%s(): LAC DSA RS Sign operation failed due " ++ "to protocol error\n", __FUNCTION__); ++ krp->krp_status = EIO; ++ } ++ } ++ ++ /* Swap bytes only when the callback status is successful and ++ protocolStatus is set to true */ ++ if (CPA_STATUS_SUCCESS == status && CPA_TRUE == protocolStatus) { ++ icp_ocfDrvSwapBytes(pR->pData, pR->dataLenInBytes); ++ icp_ocfDrvSwapBytes(pS->pData, pS->dataLenInBytes); ++ } ++ ++ icp_ocfDrvFreeFlatBuffer(pR); ++ icp_ocfDrvFreeFlatBuffer(pS); ++ memset(pSignData->K.pData, 0, pSignData->K.dataLenInBytes); ++ kmem_cache_free(drvDSARSSignKValue_zone, pSignData->K.pData); ++ memset(pSignData, 0, sizeof(CpaCyDsaRSSignOpData)); ++ kmem_cache_free(drvDSARSSign_zone, pSignData); ++ crypto_kdone(krp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvDsaVerifyCallback ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the DSA Verify operation. ++ */ ++static void ++icp_ocfDrvDsaVerifyCallBack(void *callbackTag, ++ CpaStatus status, ++ void *pOpData, CpaBoolean verifyStatus) ++{ ++ ++ struct cryptkop *krp = NULL; ++ CpaCyDsaVerifyOpData *pVerData = NULL; ++ ++ if (NULL == callbackTag) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "callbackTag data is NULL\n", __FUNCTION__); ++ return; ++ } ++ ++ krp = (struct cryptkop *)callbackTag; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): Invalid input parameters - " ++ "Operation Data is NULL\n", __FUNCTION__); ++ krp->krp_status = ECANCELED; ++ crypto_kdone(krp); ++ return; ++ } ++ pVerData = (CpaCyDsaVerifyOpData *) pOpData; ++ ++ if (CPA_STATUS_SUCCESS != status) { ++ APRINTK("%s(): LAC DSA Verify operation failed - " ++ "Operation Status = %d\n", __FUNCTION__, status); ++ krp->krp_status = ECANCELED; ++ } else { ++ krp->krp_status = CRYPTO_OP_SUCCESS; ++ ++ if (CPA_TRUE != verifyStatus) { ++ DPRINTK("%s(): DSA signature invalid\n", __FUNCTION__); ++ krp->krp_status = EIO; ++ } ++ } ++ ++ /* Swap bytes only when the callback status is successful and ++ verifyStatus is set to true */ ++ /*Just swapping back the key values for now. Possibly all ++ swapped buffers need to be reverted */ ++ if (CPA_STATUS_SUCCESS == status && CPA_TRUE == verifyStatus) { ++ icp_ocfDrvSwapBytes(pVerData->R.pData, ++ pVerData->R.dataLenInBytes); ++ icp_ocfDrvSwapBytes(pVerData->S.pData, ++ pVerData->S.dataLenInBytes); ++ } ++ ++ memset(pVerData, 0, sizeof(CpaCyDsaVerifyOpData)); ++ kmem_cache_free(drvDSAVerify_zone, pVerData); ++ crypto_kdone(krp); ++ ++ return; ++} +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_common.c +@@ -0,0 +1,891 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++/* ++ * An OCF module that uses Intel® QuickAssist Integrated Accelerator to do the ++ * crypto. ++ * ++ * This driver requires the ICP Access Library that is available from Intel in ++ * order to operate. ++ */ ++ ++#include "icp_ocf.h" ++ ++#define ICP_OCF_COMP_NAME "ICP_OCF" ++#define ICP_OCF_VER_MAIN (2) ++#define ICP_OCF_VER_MJR (0) ++#define ICP_OCF_VER_MNR (0) ++ ++#define MAX_DEREG_RETRIES (100) ++#define DEFAULT_DEREG_RETRIES (10) ++#define DEFAULT_DEREG_DELAY_IN_JIFFIES (10) ++ ++/* This defines the maximum number of sessions possible between OCF ++ and the OCF Tolapai Driver. If set to zero, there is no limit. */ ++#define DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT (0) ++#define NUM_SUPPORTED_CAPABILITIES (21) ++ ++/*Slabs zones*/ ++struct kmem_cache *drvSessionData_zone = NULL; ++struct kmem_cache *drvOpData_zone = NULL; ++struct kmem_cache *drvDH_zone = NULL; ++struct kmem_cache *drvLnModExp_zone = NULL; ++struct kmem_cache *drvRSADecrypt_zone = NULL; ++struct kmem_cache *drvRSAPrivateKey_zone = NULL; ++struct kmem_cache *drvDSARSSign_zone = NULL; ++struct kmem_cache *drvDSARSSignKValue_zone = NULL; ++struct kmem_cache *drvDSAVerify_zone = NULL; ++ ++/*Slab zones for flatbuffers and bufferlist*/ ++struct kmem_cache *drvFlatBuffer_zone = NULL; ++ ++static int icp_ocfDrvInit(void); ++static void icp_ocfDrvExit(void); ++static void icp_ocfDrvFreeCaches(void); ++static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg); ++ ++int32_t icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ ++/* Module parameter - gives the number of times LAC deregistration shall be ++ re-tried */ ++int num_dereg_retries = DEFAULT_DEREG_RETRIES; ++ ++/* Module parameter - gives the delay time in jiffies before a LAC session ++ shall be attempted to be deregistered again */ ++int dereg_retry_delay_in_jiffies = DEFAULT_DEREG_DELAY_IN_JIFFIES; ++ ++/* Module parameter - gives the maximum number of sessions possible between ++ OCF and the OCF Tolapai Driver. If set to zero, there is no limit.*/ ++int max_sessions = DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT; ++ ++/* This is set when the module is removed from the system, no further ++ processing can take place if this is set */ ++atomic_t icp_ocfDrvIsExiting = ATOMIC_INIT(0); ++ ++/* This is used to show how many lac sessions were not deregistered*/ ++atomic_t lac_session_failed_dereg_count = ATOMIC_INIT(0); ++ ++/* This is used to track the number of registered sessions between OCF and ++ * and the OCF Tolapai driver, when max_session is set to value other than ++ * zero. This ensures that the max_session set for the OCF and the driver ++ * is equal to the LAC registered sessions */ ++atomic_t num_ocf_to_drv_registered_sessions = ATOMIC_INIT(0); ++ ++/* Head of linked list used to store session data */ ++struct list_head icp_ocfDrvGlobalSymListHead; ++struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList; ++ ++spinlock_t icp_ocfDrvSymSessInfoListSpinlock = SPIN_LOCK_UNLOCKED; ++rwlock_t icp_kmem_cache_destroy_alloc_lock = RW_LOCK_UNLOCKED; ++ ++struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ; ++ ++struct icp_drvBuffListInfo defBuffListInfo; ++ ++static struct { ++ softc_device_decl sc_dev; ++} icpDev; ++ ++static device_method_t icp_methods = { ++ /* crypto device methods */ ++ DEVMETHOD(cryptodev_newsession, icp_ocfDrvNewSession), ++ DEVMETHOD(cryptodev_freesession, icp_ocfDrvFreeLACSession), ++ DEVMETHOD(cryptodev_process, icp_ocfDrvSymProcess), ++ DEVMETHOD(cryptodev_kprocess, icp_ocfDrvPkeProcess), ++}; ++ ++module_param(num_dereg_retries, int, S_IRUGO); ++module_param(dereg_retry_delay_in_jiffies, int, S_IRUGO); ++module_param(max_sessions, int, S_IRUGO); ++ ++MODULE_PARM_DESC(num_dereg_retries, ++ "Number of times to retry LAC Sym Session Deregistration. " ++ "Default 10, Max 100"); ++MODULE_PARM_DESC(dereg_retry_delay_in_jiffies, "Delay in jiffies " ++ "(added to a schedule() function call) before a LAC Sym " ++ "Session Dereg is retried. Default 10"); ++MODULE_PARM_DESC(max_sessions, "This sets the maximum number of sessions " ++ "between OCF and this driver. If this value is set to zero, " ++ "max session count checking is disabled. Default is zero(0)"); ++ ++/* Name : icp_ocfDrvInit ++ * ++ * Description : This function will register all the symmetric and asymmetric ++ * functionality that will be accelerated by the hardware. It will also ++ * get a unique driver ID from the OCF and initialise all slab caches ++ */ ++static int __init icp_ocfDrvInit(void) ++{ ++ int ocfStatus = 0; ++ ++ IPRINTK("=== %s ver %d.%d.%d ===\n", ICP_OCF_COMP_NAME, ++ ICP_OCF_VER_MAIN, ICP_OCF_VER_MJR, ICP_OCF_VER_MNR); ++ ++ if (MAX_DEREG_RETRIES < num_dereg_retries) { ++ EPRINTK("Session deregistration retry count set to greater " ++ "than %d", MAX_DEREG_RETRIES); ++ return -1; ++ } ++ ++ /* Initialize and Start the Cryptographic component */ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyStartInstance(CPA_INSTANCE_HANDLE_SINGLE)) { ++ EPRINTK("Failed to initialize and start the instance " ++ "of the Cryptographic component.\n"); ++ return -1; ++ } ++ ++ /* Set the default size of BufferList to allocate */ ++ memset(&defBuffListInfo, 0, sizeof(struct icp_drvBuffListInfo)); ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvBufferListMemInfo(ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS, ++ &defBuffListInfo)) { ++ EPRINTK("Failed to get bufferlist memory info.\n"); ++ return -1; ++ } ++ ++ /*Register OCF Tolapai Driver with OCF */ ++ memset(&icpDev, 0, sizeof(icpDev)); ++ softc_device_init(&icpDev, "icp", 0, icp_methods); ++ ++ icp_ocfDrvDriverId = crypto_get_driverid(softc_get_device(&icpDev), ++ CRYPTOCAP_F_HARDWARE); ++ ++ if (icp_ocfDrvDriverId < 0) { ++ EPRINTK("%s : ICP driver failed to register with OCF!\n", ++ __FUNCTION__); ++ return -ENODEV; ++ } ++ ++ /*Create all the slab caches used by the OCF Tolapai Driver */ ++ drvSessionData_zone = ++ ICP_CACHE_CREATE("ICP Session Data", struct icp_drvSessionData); ++ ICP_CACHE_NULL_CHECK(drvSessionData_zone); ++ ++ /* ++ * Allocation of the OpData includes the allocation space for meta data. ++ * The memory after the opData structure is reserved for this meta data. ++ */ ++ drvOpData_zone = ++ kmem_cache_create("ICP Op Data", sizeof(struct icp_drvOpData) + ++ defBuffListInfo.metaSize ,0, SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ++ ++ ICP_CACHE_NULL_CHECK(drvOpData_zone); ++ ++ drvDH_zone = ICP_CACHE_CREATE("ICP DH data", CpaCyDhPhase1KeyGenOpData); ++ ICP_CACHE_NULL_CHECK(drvDH_zone); ++ ++ drvLnModExp_zone = ++ ICP_CACHE_CREATE("ICP ModExp data", CpaCyLnModExpOpData); ++ ICP_CACHE_NULL_CHECK(drvLnModExp_zone); ++ ++ drvRSADecrypt_zone = ++ ICP_CACHE_CREATE("ICP RSA decrypt data", CpaCyRsaDecryptOpData); ++ ICP_CACHE_NULL_CHECK(drvRSADecrypt_zone); ++ ++ drvRSAPrivateKey_zone = ++ ICP_CACHE_CREATE("ICP RSA private key data", CpaCyRsaPrivateKey); ++ ICP_CACHE_NULL_CHECK(drvRSAPrivateKey_zone); ++ ++ drvDSARSSign_zone = ++ ICP_CACHE_CREATE("ICP DSA Sign", CpaCyDsaRSSignOpData); ++ ICP_CACHE_NULL_CHECK(drvDSARSSign_zone); ++ ++ /*too awkward to use a macro here */ ++ drvDSARSSignKValue_zone = ++ kmem_cache_create("ICP DSA Sign Rand Val", ++ DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES, 0, ++ SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ICP_CACHE_NULL_CHECK(drvDSARSSignKValue_zone); ++ ++ drvDSAVerify_zone = ++ ICP_CACHE_CREATE("ICP DSA Verify", CpaCyDsaVerifyOpData); ++ ICP_CACHE_NULL_CHECK(drvDSAVerify_zone); ++ ++ drvFlatBuffer_zone = ++ ICP_CACHE_CREATE("ICP Flat Buffers", CpaFlatBuffer); ++ ICP_CACHE_NULL_CHECK(drvFlatBuffer_zone); ++ ++ /* Register the ICP symmetric crypto support. */ ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_NULL_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_DES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_3DES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_AES_CBC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_ARC4); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384_HMAC); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512); ++ ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512_HMAC); ++ ++ /* Register the ICP asymmetric algorithm support */ ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DH_COMPUTE_KEY); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP_CRT); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_SIGN); ++ ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_VERIFY); ++ ++ /* Register the ICP random number generator support */ ++ if (OCF_REGISTRATION_STATUS_SUCCESS == ++ crypto_rregister(icp_ocfDrvDriverId, icp_ocfDrvReadRandom, NULL)) { ++ ocfStatus++; ++ } ++ ++ if (OCF_ZERO_FUNCTIONALITY_REGISTERED == ocfStatus) { ++ DPRINTK("%s: Failed to register any device capabilities\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeCaches(); ++ icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ return -ECANCELED; ++ } ++ ++ DPRINTK("%s: Registered %d of %d device capabilities\n", ++ __FUNCTION__, ocfStatus, NUM_SUPPORTED_CAPABILITIES); ++ ++/*Session data linked list used during module exit*/ ++ INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead); ++ INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead_FreeMemList); ++ ++ icp_ocfDrvFreeLacSessionWorkQ = ++ create_singlethread_workqueue("ocfLacDeregWorkQueue"); ++ ++ return 0; ++} ++ ++/* Name : icp_ocfDrvExit ++ * ++ * Description : This function will deregister all the symmetric sessions ++ * registered with the LAC component. It will also deregister all symmetric ++ * and asymmetric functionality that can be accelerated by the hardware via OCF ++ * and random number generation if it is enabled. ++ */ ++static void icp_ocfDrvExit(void) ++{ ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ struct icp_drvSessionData *sessionData = NULL; ++ struct icp_drvSessionData *tempSessionData = NULL; ++ int i, remaining_delay_time_in_jiffies = 0; ++ /* There is a possibility of a process or new session command being */ ++ /* sent before this variable is incremented. The aim of this variable */ ++ /* is to stop a loop of calls creating a deadlock situation which */ ++ /* would prevent the driver from exiting. */ ++ ++ atomic_inc(&icp_ocfDrvIsExiting); ++ ++ /*Existing sessions will be routed to another driver after these calls */ ++ crypto_unregister_all(icp_ocfDrvDriverId); ++ crypto_runregister_all(icp_ocfDrvDriverId); ++ ++ /*If any sessions are waiting to be deregistered, do that. This also ++ flushes the work queue */ ++ destroy_workqueue(icp_ocfDrvFreeLacSessionWorkQ); ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ list_for_each_entry_safe(tempSessionData, sessionData, ++ &icp_ocfDrvGlobalSymListHead, listNode) { ++ for (i = 0; i < num_dereg_retries; i++) { ++ /*No harm if bad input - LAC will handle error cases */ ++ if (ICP_SESSION_RUNNING == tempSessionData->inUse) { ++ lacStatus = ++ cpaCySymRemoveSession ++ (CPA_INSTANCE_HANDLE_SINGLE, ++ tempSessionData->sessHandle); ++ if (CPA_STATUS_SUCCESS == lacStatus) { ++ /* Succesfully deregistered */ ++ break; ++ } else if (CPA_STATUS_RETRY != lacStatus) { ++ atomic_inc ++ (&lac_session_failed_dereg_count); ++ break; ++ } ++ ++ /*schedule_timout returns the time left for completion if ++ * this task is set to TASK_INTERRUPTIBLE */ ++ remaining_delay_time_in_jiffies = ++ dereg_retry_delay_in_jiffies; ++ while (0 > remaining_delay_time_in_jiffies) { ++ remaining_delay_time_in_jiffies = ++ schedule_timeout ++ (remaining_delay_time_in_jiffies); ++ } ++ ++ DPRINTK ++ ("%s(): Retry %d to deregistrate the session\n", ++ __FUNCTION__, i); ++ } ++ } ++ ++ /*remove from current list */ ++ list_del(&(tempSessionData->listNode)); ++ /*add to free mem linked list */ ++ list_add(&(tempSessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead_FreeMemList); ++ ++ } ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ /*set back to initial values */ ++ sessionData = NULL; ++ /*still have a reference in our list! */ ++ tempSessionData = NULL; ++ /*free memory */ ++ list_for_each_entry_safe(tempSessionData, sessionData, ++ &icp_ocfDrvGlobalSymListHead_FreeMemList, ++ listNode) { ++ ++ list_del(&(tempSessionData->listNode)); ++ /* Free allocated CpaCySymSessionCtx */ ++ if (NULL != tempSessionData->sessHandle) { ++ kfree(tempSessionData->sessHandle); ++ } ++ memset(tempSessionData, 0, sizeof(struct icp_drvSessionData)); ++ kmem_cache_free(drvSessionData_zone, tempSessionData); ++ } ++ ++ if (0 != atomic_read(&lac_session_failed_dereg_count)) { ++ DPRINTK("%s(): %d LAC sessions were not deregistered " ++ "correctly. This is not a clean exit! \n", ++ __FUNCTION__, ++ atomic_read(&lac_session_failed_dereg_count)); ++ } ++ ++ icp_ocfDrvFreeCaches(); ++ icp_ocfDrvDriverId = INVALID_DRIVER_ID; ++ ++ /* Shutdown the Cryptographic component */ ++ lacStatus = cpaCyStopInstance(CPA_INSTANCE_HANDLE_SINGLE); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ DPRINTK("%s(): Failed to stop instance of the " ++ "Cryptographic component.(status == %d)\n", ++ __FUNCTION__, lacStatus); ++ } ++ ++} ++ ++/* Name : icp_ocfDrvFreeCaches ++ * ++ * Description : This function deregisters all slab caches ++ */ ++static void icp_ocfDrvFreeCaches(void) ++{ ++ if (atomic_read(&icp_ocfDrvIsExiting) != CPA_TRUE) { ++ atomic_set(&icp_ocfDrvIsExiting, 1); ++ } ++ ++ /*Sym Zones */ ++ ICP_CACHE_DESTROY(drvSessionData_zone); ++ ICP_CACHE_DESTROY(drvOpData_zone); ++ ++ /*Asym zones */ ++ ICP_CACHE_DESTROY(drvDH_zone); ++ ICP_CACHE_DESTROY(drvLnModExp_zone); ++ ICP_CACHE_DESTROY(drvRSADecrypt_zone); ++ ICP_CACHE_DESTROY(drvRSAPrivateKey_zone); ++ ICP_CACHE_DESTROY(drvDSARSSignKValue_zone); ++ ICP_CACHE_DESTROY(drvDSARSSign_zone); ++ ICP_CACHE_DESTROY(drvDSAVerify_zone); ++ ++ /*FlatBuffer and BufferList Zones */ ++ ICP_CACHE_DESTROY(drvFlatBuffer_zone); ++ ++} ++ ++/* Name : icp_ocfDrvDeregRetry ++ * ++ * Description : This function will try to farm the session deregistration ++ * off to a work queue. If it fails, nothing more can be done and it ++ * returns an error ++ */ ++ ++int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister) ++{ ++ struct icp_ocfDrvFreeLacSession *workstore = NULL; ++ ++ DPRINTK("%s(): Retry - Deregistering session (%p)\n", ++ __FUNCTION__, sessionToDeregister); ++ ++ /*make sure the session is not available to be allocated during this ++ process */ ++ atomic_inc(&lac_session_failed_dereg_count); ++ ++ /*Farm off to work queue */ ++ workstore = ++ kmalloc(sizeof(struct icp_ocfDrvFreeLacSession), GFP_ATOMIC); ++ if (NULL == workstore) { ++ DPRINTK("%s(): unable to free session - no memory available " ++ "for work queue\n", __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ workstore->sessionToDeregister = sessionToDeregister; ++ ++ INIT_WORK(&(workstore->work), icp_ocfDrvDeferedFreeLacSessionProcess, ++ workstore); ++ queue_work(icp_ocfDrvFreeLacSessionWorkQ, &(workstore->work)); ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ ++} ++ ++/* Name : icp_ocfDrvDeferedFreeLacSessionProcess ++ * ++ * Description : This function will retry (module input parameter) ++ * 'num_dereg_retries' times to deregister any symmetric session that recieves a ++ * CPA_STATUS_RETRY message from the LAC component. This function is run in ++ * Thread context because it is called from a worker thread ++ */ ++static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg) ++{ ++ struct icp_ocfDrvFreeLacSession *workstore = NULL; ++ CpaCySymSessionCtx sessionToDeregister = NULL; ++ int i = 0; ++ int remaining_delay_time_in_jiffies = 0; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ ++ workstore = (struct icp_ocfDrvFreeLacSession *)arg; ++ if (NULL == workstore) { ++ DPRINTK("%s() function called with null parameter \n", ++ __FUNCTION__); ++ return; ++ } ++ ++ sessionToDeregister = workstore->sessionToDeregister; ++ kfree(workstore); ++ ++ /*if exiting, give deregistration one more blast only */ ++ if (atomic_read(&icp_ocfDrvIsExiting) == CPA_TRUE) { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ ++ if (lacStatus != CPA_STATUS_SUCCESS) { ++ DPRINTK("%s() Failed to Dereg LAC session %p " ++ "during module exit\n", __FUNCTION__, ++ sessionToDeregister); ++ return; ++ } ++ ++ atomic_dec(&lac_session_failed_dereg_count); ++ return; ++ } ++ ++ for (i = 0; i <= num_dereg_retries; i++) { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ ++ if (lacStatus == CPA_STATUS_SUCCESS) { ++ atomic_dec(&lac_session_failed_dereg_count); ++ return; ++ } ++ if (lacStatus != CPA_STATUS_RETRY) { ++ DPRINTK("%s() Failed to deregister session - lacStatus " ++ " = %d", __FUNCTION__, lacStatus); ++ break; ++ } ++ ++ /*schedule_timout returns the time left for completion if this ++ task is set to TASK_INTERRUPTIBLE */ ++ remaining_delay_time_in_jiffies = dereg_retry_delay_in_jiffies; ++ while (0 > remaining_delay_time_in_jiffies) { ++ remaining_delay_time_in_jiffies = ++ schedule_timeout(remaining_delay_time_in_jiffies); ++ } ++ ++ } ++ ++ DPRINTK("%s(): Unable to deregister session\n", __FUNCTION__); ++ DPRINTK("%s(): Number of unavailable LAC sessions = %d\n", __FUNCTION__, ++ atomic_read(&lac_session_failed_dereg_count)); ++} ++ ++/* Name : icp_ocfDrvPtrAndLenToFlatBuffer ++ * ++ * Description : This function converts a "pointer and length" buffer ++ * structure to Fredericksburg Flat Buffer (CpaFlatBuffer) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len, ++ CpaFlatBuffer * pFlatBuffer) ++{ ++ pFlatBuffer->pData = pData; ++ pFlatBuffer->dataLenInBytes = len; ++} ++ ++/* Name : icp_ocfDrvSingleSkBuffToFlatBuffer ++ * ++ * Description : This function converts a single socket buffer (sk_buff) ++ * structure to a Fredericksburg Flat Buffer (CpaFlatBuffer) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++static inline void ++icp_ocfDrvSingleSkBuffToFlatBuffer(struct sk_buff *pSkb, ++ CpaFlatBuffer * pFlatBuffer) ++{ ++ pFlatBuffer->pData = pSkb->data; ++ pFlatBuffer->dataLenInBytes = skb_headlen(pSkb); ++} ++ ++/* Name : icp_ocfDrvSkBuffToBufferList ++ * ++ * Description : This function converts a socket buffer (sk_buff) structure to ++ * Fredericksburg Scatter/Gather (CpaBufferList) buffer format. ++ * ++ * This function assumes that the bufferlist has been allocated with the correct ++ * number of buffer arrays. ++ * ++ */ ++inline int ++icp_ocfDrvSkBuffToBufferList(struct sk_buff *pSkb, CpaBufferList * bufferList) ++{ ++ CpaFlatBuffer *curFlatBuffer = NULL; ++ char *skbuffPageAddr = NULL; ++ struct sk_buff *pCurFrag = NULL; ++ struct skb_shared_info *pShInfo = NULL; ++ uint32_t page_offset = 0, i = 0; ++ ++ DPRINTK("%s(): Entry Point\n", __FUNCTION__); ++ ++ /* ++ * In all cases, the first skb needs to be translated to FlatBuffer. ++ * Perform a buffer translation for the first skbuff ++ */ ++ curFlatBuffer = bufferList->pBuffers; ++ icp_ocfDrvSingleSkBuffToFlatBuffer(pSkb, curFlatBuffer); ++ ++ /* Set the userData to point to the original sk_buff */ ++ bufferList->pUserData = (void *)pSkb; ++ ++ /* We now know we'll have at least one element in the SGL */ ++ bufferList->numBuffers = 1; ++ ++ if (0 == skb_is_nonlinear(pSkb)) { ++ /* Is a linear buffer - therefore it's a single skbuff */ ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ ++ curFlatBuffer++; ++ pShInfo = skb_shinfo(pSkb); ++ if (pShInfo->frag_list != NULL && pShInfo->nr_frags != 0) { ++ EPRINTK("%s():" ++ "Translation for a combination of frag_list " ++ "and frags[] array not supported!\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } else if (pShInfo->frag_list != NULL) { ++ /* ++ * Non linear skbuff supported through frag_list ++ * Perform translation for each fragment (sk_buff) ++ * in the frag_list of the first sk_buff. ++ */ ++ for (pCurFrag = pShInfo->frag_list; ++ pCurFrag != NULL; pCurFrag = pCurFrag->next) { ++ icp_ocfDrvSingleSkBuffToFlatBuffer(pCurFrag, ++ curFlatBuffer); ++ curFlatBuffer++; ++ bufferList->numBuffers++; ++ } ++ } else if (pShInfo->nr_frags != 0) { ++ /* ++ * Perform translation for each fragment in frags array ++ * and add to the BufferList ++ */ ++ for (i = 0; i < pShInfo->nr_frags; i++) { ++ /* Get the page address and offset of this frag */ ++ skbuffPageAddr = (char *)pShInfo->frags[i].page; ++ page_offset = pShInfo->frags[i].page_offset; ++ ++ /* Convert a pointer and length to a flat buffer */ ++ icp_ocfDrvPtrAndLenToFlatBuffer(skbuffPageAddr + ++ page_offset, ++ pShInfo->frags[i].size, ++ curFlatBuffer); ++ curFlatBuffer++; ++ bufferList->numBuffers++; ++ } ++ } else { ++ EPRINTK("%s():" "Could not recognize skbuff fragments!\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvBufferListToSkBuff ++ * ++ * Description : This function converts a Fredericksburg Scatter/Gather ++ * (CpaBufferList) buffer format to socket buffer structure. ++ */ ++inline int ++icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, struct sk_buff **skb) ++{ ++ DPRINTK("%s(): Entry Point\n", __FUNCTION__); ++ ++ /* Retrieve the orignal skbuff */ ++ *skb = (struct sk_buff *)bufferList->pUserData; ++ if (NULL == *skb) { ++ EPRINTK("%s():" ++ "Error on converting from a BufferList. " ++ "The BufferList does not contain an sk_buff.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ DPRINTK("%s(): Exit Point\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvPtrAndLenToBufferList ++ * ++ * Description : This function converts a "pointer and length" buffer ++ * structure to Fredericksburg Scatter/Gather Buffer (CpaBufferList) format. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length, ++ CpaBufferList * pBufferList) ++{ ++ pBufferList->numBuffers = 1; ++ pBufferList->pBuffers->pData = pDataIn; ++ pBufferList->pBuffers->dataLenInBytes = length; ++} ++ ++/* Name : icp_ocfDrvBufferListToPtrAndLen ++ * ++ * Description : This function converts Fredericksburg Scatter/Gather Buffer ++ * (CpaBufferList) format to a "pointer and length" buffer structure. ++ * ++ * This function assumes that the data passed in are valid. ++ */ ++inline void ++icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList, ++ void **ppDataOut, uint32_t * pLength) ++{ ++ *ppDataOut = pBufferList->pBuffers->pData; ++ *pLength = pBufferList->pBuffers->dataLenInBytes; ++} ++ ++/* Name : icp_ocfDrvBufferListMemInfo ++ * ++ * Description : This function will set the number of flat buffers in ++ * bufferlist, the size of memory to allocate for the pPrivateMetaData ++ * member of the CpaBufferList. ++ */ ++int ++icp_ocfDrvBufferListMemInfo(uint16_t numBuffers, ++ struct icp_drvBuffListInfo *buffListInfo) ++{ ++ buffListInfo->numBuffers = numBuffers; ++ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE, ++ buffListInfo->numBuffers, ++ &(buffListInfo->metaSize))) { ++ EPRINTK("%s() Failed to get buffer list meta size.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvGetSkBuffFrags ++ * ++ * Description : This function will determine the number of ++ * fragments in a socket buffer(sk_buff). ++ */ ++inline uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff * pSkb) ++{ ++ uint16_t numFrags = 0; ++ struct sk_buff *pCurFrag = NULL; ++ struct skb_shared_info *pShInfo = NULL; ++ ++ if (NULL == pSkb) ++ return 0; ++ ++ numFrags = 1; ++ if (0 == skb_is_nonlinear(pSkb)) { ++ /* Linear buffer - it's a single skbuff */ ++ return numFrags; ++ } ++ ++ pShInfo = skb_shinfo(pSkb); ++ if (NULL != pShInfo->frag_list && 0 != pShInfo->nr_frags) { ++ EPRINTK("%s(): Combination of frag_list " ++ "and frags[] array not supported!\n", __FUNCTION__); ++ return 0; ++ } else if (0 != pShInfo->nr_frags) { ++ numFrags += pShInfo->nr_frags; ++ return numFrags; ++ } else if (NULL != pShInfo->frag_list) { ++ for (pCurFrag = pShInfo->frag_list; ++ pCurFrag != NULL; pCurFrag = pCurFrag->next) { ++ numFrags++; ++ } ++ return numFrags; ++ } else { ++ return 0; ++ } ++} ++ ++/* Name : icp_ocfDrvFreeFlatBuffer ++ * ++ * Description : This function will deallocate flat buffer. ++ */ ++inline void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer) ++{ ++ if (pFlatBuffer != NULL) { ++ memset(pFlatBuffer, 0, sizeof(CpaFlatBuffer)); ++ kmem_cache_free(drvFlatBuffer_zone, pFlatBuffer); ++ } ++} ++ ++/* Name : icp_ocfDrvAllocMetaData ++ * ++ * Description : This function will allocate memory for the ++ * pPrivateMetaData member of CpaBufferList. ++ */ ++inline int ++icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, ++ const struct icp_drvOpData *pOpData) ++{ ++ Cpa32U metaSize = 0; ++ ++ if (pBufferList->numBuffers <= ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS){ ++ void *pOpDataStartAddr = (void *)pOpData; ++ ++ if (0 == defBuffListInfo.metaSize) { ++ pBufferList->pPrivateMetaData = NULL; ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ /* ++ * The meta data allocation has been included as part of the ++ * op data. It has been pre-allocated in memory just after the ++ * icp_drvOpData structure. ++ */ ++ pBufferList->pPrivateMetaData = pOpDataStartAddr + ++ sizeof(struct icp_drvOpData); ++ } else { ++ if (CPA_STATUS_SUCCESS != ++ cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE, ++ pBufferList->numBuffers, ++ &metaSize)) { ++ EPRINTK("%s() Failed to get buffer list meta size.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ if (0 == metaSize) { ++ pBufferList->pPrivateMetaData = NULL; ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++ } ++ ++ pBufferList->pPrivateMetaData = kmalloc(metaSize, GFP_ATOMIC); ++ } ++ if (NULL == pBufferList->pPrivateMetaData) { ++ EPRINTK("%s() Failed to allocate pPrivateMetaData.\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvFreeMetaData ++ * ++ * Description : This function will deallocate pPrivateMetaData memory. ++ */ ++inline void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList) ++{ ++ if (NULL == pBufferList->pPrivateMetaData) { ++ return; ++ } ++ ++ /* ++ * Only free the meta data if the BufferList has more than ++ * ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS number of buffers. ++ * Otherwise, the meta data shall be freed when the icp_drvOpData is ++ * freed. ++ */ ++ if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < pBufferList->numBuffers){ ++ kfree(pBufferList->pPrivateMetaData); ++ } ++} ++ ++module_init(icp_ocfDrvInit); ++module_exit(icp_ocfDrvExit); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_AUTHOR("Intel"); ++MODULE_DESCRIPTION("OCF Driver for Intel Quick Assist crypto acceleration"); +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_ocf.h +@@ -0,0 +1,363 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++ ++/* ++ * OCF drv driver header file for the Intel ICP processor. ++ */ ++ ++#ifndef ICP_OCF_H ++#define ICP_OCF_H ++ ++#include ++#include ++#include ++ ++#include "cryptodev.h" ++#include "uio.h" ++ ++#include "cpa.h" ++#include "cpa_cy_im.h" ++#include "cpa_cy_sym.h" ++#include "cpa_cy_rand.h" ++#include "cpa_cy_dh.h" ++#include "cpa_cy_rsa.h" ++#include "cpa_cy_ln.h" ++#include "cpa_cy_common.h" ++#include "cpa_cy_dsa.h" ++ ++#define NUM_BITS_IN_BYTE (8) ++#define NUM_BITS_IN_BYTE_MINUS_ONE (NUM_BITS_IN_BYTE -1) ++#define INVALID_DRIVER_ID (-1) ++#define RETURN_RAND_NUM_GEN_FAILED (-1) ++ ++/*This is define means only one operation can be chained to another ++(resulting in one chain of two operations)*/ ++#define MAX_NUM_OF_CHAINED_OPS (1) ++/*This is the max block cipher initialisation vector*/ ++#define MAX_IV_LEN_IN_BYTES (20) ++/*This is used to check whether the OCF to this driver session limit has ++ been disabled*/ ++#define NO_OCF_TO_DRV_MAX_SESSIONS (0) ++ ++/*OCF values mapped here*/ ++#define ICP_SHA1_DIGEST_SIZE_IN_BYTES (SHA1_HASH_LEN) ++#define ICP_SHA256_DIGEST_SIZE_IN_BYTES (SHA2_256_HASH_LEN) ++#define ICP_SHA384_DIGEST_SIZE_IN_BYTES (SHA2_384_HASH_LEN) ++#define ICP_SHA512_DIGEST_SIZE_IN_BYTES (SHA2_512_HASH_LEN) ++#define ICP_MD5_DIGEST_SIZE_IN_BYTES (MD5_HASH_LEN) ++#define ARC4_COUNTER_LEN (ARC4_BLOCK_LEN) ++ ++#define OCF_REGISTRATION_STATUS_SUCCESS (0) ++#define OCF_ZERO_FUNCTIONALITY_REGISTERED (0) ++#define ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR (0) ++#define ICP_OCF_DRV_STATUS_SUCCESS (0) ++#define ICP_OCF_DRV_STATUS_FAIL (1) ++ ++/*Turn on/off debug options*/ ++#define ICP_OCF_PRINT_DEBUG_MESSAGES (0) ++#define ICP_OCF_PRINT_KERN_ALERT (1) ++#define ICP_OCF_PRINT_KERN_ERRS (1) ++ ++/*DSA Prime Q size in bytes (as defined in the standard) */ ++#define DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES (20) ++ ++/*MACRO DEFINITIONS*/ ++ ++#define BITS_TO_BYTES(bytes, bits) \ ++ bytes = (bits + NUM_BITS_IN_BYTE_MINUS_ONE) / NUM_BITS_IN_BYTE ++ ++#define ICP_CACHE_CREATE(cache_ID, cache_name) \ ++ kmem_cache_create(cache_ID, sizeof(cache_name),0, \ ++ SLAB_HWCACHE_ALIGN, NULL, NULL); ++ ++#define ICP_CACHE_NULL_CHECK(slab_zone) \ ++{ \ ++ if(NULL == slab_zone){ \ ++ icp_ocfDrvFreeCaches(); \ ++ EPRINTK("%s() line %d: Not enough memory!\n", \ ++ __FUNCTION__, __LINE__); \ ++ return ENOMEM; \ ++ } \ ++} ++ ++#define ICP_CACHE_DESTROY(slab_zone) \ ++{ \ ++ if(NULL != slab_zone){ \ ++ kmem_cache_destroy(slab_zone); \ ++ slab_zone = NULL; \ ++ } \ ++} ++ ++#define ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(alg) \ ++{ \ ++ if(OCF_REGISTRATION_STATUS_SUCCESS == \ ++ crypto_register(icp_ocfDrvDriverId, \ ++ alg, \ ++ 0, \ ++ 0)) { \ ++ ocfStatus++; \ ++ } \ ++} ++ ++#define ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(alg) \ ++{ \ ++ if(OCF_REGISTRATION_STATUS_SUCCESS == \ ++ crypto_kregister(icp_ocfDrvDriverId, \ ++ alg, \ ++ 0)){ \ ++ ocfStatus++; \ ++ } \ ++} ++ ++#if ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++#define DPRINTK(args...) \ ++{ \ ++ printk(args); \ ++} ++ ++#else //ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++ ++#define DPRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_DEBUG_MESSAGES == 1 ++ ++#if ICP_OCF_PRINT_KERN_ALERT == 1 ++#define APRINTK(args...) \ ++{ \ ++ printk(KERN_ALERT args); \ ++} ++ ++#else //ICP_OCF_PRINT_KERN_ALERT == 1 ++ ++#define APRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_KERN_ALERT == 1 ++ ++#if ICP_OCF_PRINT_KERN_ERRS == 1 ++#define EPRINTK(args...) \ ++{ \ ++ printk(KERN_ERR args); \ ++} ++ ++#else //ICP_OCF_PRINT_KERN_ERRS == 1 ++ ++#define EPRINTK(args...) ++ ++#endif //ICP_OCF_PRINT_KERN_ERRS == 1 ++ ++#define IPRINTK(args...) \ ++{ \ ++ printk(KERN_INFO args); \ ++} ++ ++/*END OF MACRO DEFINITIONS*/ ++ ++typedef enum { ++ ICP_OCF_DRV_ALG_CIPHER = 0, ++ ICP_OCF_DRV_ALG_HASH ++} icp_ocf_drv_alg_type_t; ++ ++/* These are all defined in icp_common.c */ ++extern atomic_t lac_session_failed_dereg_count; ++extern atomic_t icp_ocfDrvIsExiting; ++extern atomic_t num_ocf_to_drv_registered_sessions; ++ ++/*These are use inputs used in icp_sym.c and icp_common.c ++ They are instantiated in icp_common.c*/ ++extern int max_sessions; ++ ++extern int32_t icp_ocfDrvDriverId; ++extern struct list_head icp_ocfDrvGlobalSymListHead; ++extern struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList; ++extern struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ; ++extern spinlock_t icp_ocfDrvSymSessInfoListSpinlock; ++extern rwlock_t icp_kmem_cache_destroy_alloc_lock; ++ ++/*Slab zones for symettric functionality, instantiated in icp_common.c*/ ++extern struct kmem_cache *drvSessionData_zone; ++extern struct kmem_cache *drvOpData_zone; ++ ++/*Slabs zones for asymettric functionality, instantiated in icp_common.c*/ ++extern struct kmem_cache *drvDH_zone; ++extern struct kmem_cache *drvLnModExp_zone; ++extern struct kmem_cache *drvRSADecrypt_zone; ++extern struct kmem_cache *drvRSAPrivateKey_zone; ++extern struct kmem_cache *drvDSARSSign_zone; ++extern struct kmem_cache *drvDSARSSignKValue_zone; ++extern struct kmem_cache *drvDSAVerify_zone; ++ ++/*Slab zones for flatbuffers and bufferlist*/ ++extern struct kmem_cache *drvFlatBuffer_zone; ++ ++#define ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS (16) ++ ++struct icp_drvBuffListInfo { ++ Cpa16U numBuffers; ++ Cpa32U metaSize; ++ Cpa32U metaOffset; ++ Cpa32U buffListSize; ++}; ++extern struct icp_drvBuffListInfo defBuffListInfo; ++ ++/* ++* This struct is used to keep a reference to the relevant node in the list ++* of sessionData structs, to the buffer type required by OCF and to the OCF ++* provided crp struct that needs to be returned. All this info is needed in ++* the callback function. ++* ++* IV can sometimes be stored in non-contiguous memory (e.g. skbuff ++* linked/frag list, therefore a contiguous memory space for the IV data must be ++* created and passed to LAC ++* ++*/ ++struct icp_drvOpData { ++ CpaCySymOpData lacOpData; ++ uint32_t digestSizeInBytes; ++ struct cryptop *crp; ++ uint8_t bufferType; ++ uint8_t ivData[MAX_IV_LEN_IN_BYTES]; ++ uint16_t numBufferListArray; ++ CpaBufferList srcBuffer; ++ CpaFlatBuffer bufferListArray[ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS]; ++ CpaBoolean verifyResult; ++}; ++/*Values used to derisk chances of performs being called against ++deregistered sessions (for which the slab page has been reclaimed) ++This is not a fix - since page frames are reclaimed from a slab, one cannot ++rely on that memory not being re-used by another app.*/ ++typedef enum { ++ ICP_SESSION_INITIALISED = 0x5C5C5C, ++ ICP_SESSION_RUNNING = 0x005C00, ++ ICP_SESSION_DEREGISTERED = 0xC5C5C5 ++} usage_derisk; ++ ++/* ++This is the OCF<->OCF_DRV session object: ++ ++1.The first member is a listNode. These session objects are added to a linked ++ list in order to make it easier to remove them all at session exit time. ++2.The second member is used to give the session object state and derisk the ++ possibility of OCF batch calls executing against a deregistered session (as ++ described above). ++3.The third member is a LAC<->OCF_DRV session handle (initialised with the first ++ perform request for that session). ++4.The fourth is the LAC session context. All the parameters for this structure ++ are only known when the first perform request for this session occurs. That is ++ why the OCF Tolapai Driver only registers a new LAC session at perform time ++*/ ++struct icp_drvSessionData { ++ struct list_head listNode; ++ usage_derisk inUse; ++ CpaCySymSessionCtx sessHandle; ++ CpaCySymSessionSetupData lacSessCtx; ++}; ++ ++/* This struct is required for deferred session ++ deregistration as a work queue function can ++ only have one argument*/ ++struct icp_ocfDrvFreeLacSession { ++ CpaCySymSessionCtx sessionToDeregister; ++ struct work_struct work; ++}; ++ ++int icp_ocfDrvNewSession(device_t dev, uint32_t * sild, struct cryptoini *cri); ++ ++int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid); ++ ++int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint); ++ ++int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint); ++ ++int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords); ++ ++int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister); ++ ++int icp_ocfDrvSkBuffToBufferList(struct sk_buff *skb, ++ CpaBufferList * bufferList); ++ ++int icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, ++ struct sk_buff **skb); ++ ++void icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len, ++ CpaFlatBuffer * pFlatBuffer); ++ ++void icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length, ++ CpaBufferList * pBufferList); ++ ++void icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList, ++ void **ppDataOut, uint32_t * pLength); ++ ++int icp_ocfDrvBufferListMemInfo(uint16_t numBuffers, ++ struct icp_drvBuffListInfo *buffListInfo); ++ ++uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff *pSkb); ++ ++void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer); ++ ++int icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, ++ const struct icp_drvOpData *pOpData); ++ ++void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList); ++ ++#endif ++/* ICP_OCF_H */ +--- /dev/null ++++ b/crypto/ocf/ep80579/icp_sym.c +@@ -0,0 +1,1382 @@ ++/*************************************************************************** ++ * ++ * This file is provided under a dual BSD/GPLv2 license. When using or ++ * redistributing this file, you may do so under either license. ++ * ++ * GPL LICENSE SUMMARY ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of version 2 of the GNU General Public License as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * The full GNU General Public License is included in this distribution ++ * in the file called LICENSE.GPL. ++ * ++ * Contact Information: ++ * Intel Corporation ++ * ++ * BSD LICENSE ++ * ++ * Copyright(c) 2007,2008 Intel Corporation. All rights reserved. ++ * All rights reserved. ++ * ++ * Redistribution and use in source and binary forms, with or without ++ * modification, are permitted provided that the following conditions ++ * are met: ++ * ++ * * Redistributions of source code must retain the above copyright ++ * notice, this list of conditions and the following disclaimer. ++ * * Redistributions in binary form must reproduce the above copyright ++ * notice, this list of conditions and the following disclaimer in ++ * the documentation and/or other materials provided with the ++ * distribution. ++ * * Neither the name of Intel Corporation nor the names of its ++ * contributors may be used to endorse or promote products derived ++ * from this software without specific prior written permission. ++ * ++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ++ * ++ * ++ * version: Security.L.1.0.130 ++ * ++ ***************************************************************************/ ++/* ++ * An OCF module that uses the API for Intel® QuickAssist Technology to do the ++ * cryptography. ++ * ++ * This driver requires the ICP Access Library that is available from Intel in ++ * order to operate. ++ */ ++ ++#include "icp_ocf.h" ++ ++/*This is the call back function for all symmetric cryptographic processes. ++ Its main functionality is to free driver crypto operation structure and to ++ call back to OCF*/ ++static void ++icp_ocfDrvSymCallBack(void *callbackTag, ++ CpaStatus status, ++ const CpaCySymOp operationType, ++ void *pOpData, ++ CpaBufferList * pDstBuffer, CpaBoolean verifyResult); ++ ++/*This function is used to extract crypto processing information from the OCF ++ inputs, so as that it may be passed onto LAC*/ ++static int ++icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc); ++ ++/*This function checks whether the crp_desc argument pertains to a digest or a ++ cipher operation*/ ++static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc); ++ ++/*This function copies all the passed in session context information and stores ++ it in a LAC context structure*/ ++static int ++icp_ocfDrvAlgorithmSetup(struct cryptoini *cri, ++ CpaCySymSessionSetupData * lacSessCtx); ++ ++/*This top level function is used to find a pointer to where a digest is ++ stored/needs to be inserted. */ ++static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc); ++ ++/*This function is called when a digest pointer has to be found within a ++ SKBUFF.*/ ++static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData ++ *drvOpData, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*The following two functions are called if the SKBUFF digest pointer is not ++ positioned in the linear portion of the buffer (i.e. it is in a linked SKBUFF ++ or page fragment).*/ ++/*This function takes care of the page fragment case.*/ ++static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*This function takes care of the linked list case.*/ ++static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes); ++ ++/*This function is used to free an OCF->OCF_DRV session object*/ ++static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData); ++ ++/*max IOV buffs supported in a UIO structure*/ ++#define NUM_IOV_SUPPORTED (1) ++ ++/* Name : icp_ocfDrvSymCallBack ++ * ++ * Description : When this function returns it signifies that the LAC ++ * component has completed the relevant symmetric operation. ++ * ++ * Notes : The callbackTag is a pointer to an icp_drvOpData. This memory ++ * object was passed to LAC for the cryptographic processing and contains all ++ * the relevant information for cleaning up buffer handles etc. so that the ++ * OCF Tolapai Driver portion of this crypto operation can be fully completed. ++ */ ++static void ++icp_ocfDrvSymCallBack(void *callbackTag, ++ CpaStatus status, ++ const CpaCySymOp operationType, ++ void *pOpData, ++ CpaBufferList * pDstBuffer, CpaBoolean verifyResult) ++{ ++ struct cryptop *crp = NULL; ++ struct icp_drvOpData *temp_drvOpData = ++ (struct icp_drvOpData *)callbackTag; ++ uint64_t *tempBasePtr = NULL; ++ uint32_t tempLen = 0; ++ ++ if (NULL == temp_drvOpData) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null userOpaque data" ++ "(status == %d).\n", __FUNCTION__, status); ++ DPRINTK("%s(): Unable to call OCF back! \n", __FUNCTION__); ++ return; ++ } ++ ++ crp = temp_drvOpData->crp; ++ crp->crp_etype = ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR; ++ ++ if (NULL == pOpData) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null Symmetric Op data" ++ "(status == %d).\n", __FUNCTION__, status); ++ crp->crp_etype = ECANCELED; ++ crypto_done(crp); ++ return; ++ } ++ ++ if (NULL == pDstBuffer) { ++ DPRINTK("%s(): The callback from the LAC component" ++ " has failed due to Null Dst Bufferlist data" ++ "(status == %d).\n", __FUNCTION__, status); ++ crp->crp_etype = ECANCELED; ++ crypto_done(crp); ++ return; ++ } ++ ++ if (CPA_STATUS_SUCCESS == status) { ++ ++ if (temp_drvOpData->bufferType == CRYPTO_F_SKBUF) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvBufferListToSkBuff(pDstBuffer, ++ (struct sk_buff **) ++ &(crp->crp_buf))) { ++ EPRINTK("%s(): BufferList to SkBuff " ++ "conversion error.\n", __FUNCTION__); ++ crp->crp_etype = EPERM; ++ } ++ } else { ++ icp_ocfDrvBufferListToPtrAndLen(pDstBuffer, ++ (void **)&tempBasePtr, ++ &tempLen); ++ crp->crp_olen = (int)tempLen; ++ } ++ ++ } else { ++ DPRINTK("%s(): The callback from the LAC component has failed" ++ "(status == %d).\n", __FUNCTION__, status); ++ ++ crp->crp_etype = ECANCELED; ++ } ++ ++ if (temp_drvOpData->numBufferListArray > ++ ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) { ++ kfree(pDstBuffer->pBuffers); ++ } ++ icp_ocfDrvFreeMetaData(pDstBuffer); ++ kmem_cache_free(drvOpData_zone, temp_drvOpData); ++ ++ /* Invoke the OCF callback function */ ++ crypto_done(crp); ++ ++ return; ++} ++ ++/* Name : icp_ocfDrvNewSession ++ * ++ * Description : This function will create a new Driver<->OCF session ++ * ++ * Notes : LAC session registration happens during the first perform call. ++ * That is the first time we know all information about a given session. ++ */ ++int icp_ocfDrvNewSession(device_t dev, uint32_t * sid, struct cryptoini *cri) ++{ ++ struct icp_drvSessionData *sessionData = NULL; ++ uint32_t delete_session = 0; ++ ++ /* The SID passed in should be our driver ID. We can return the */ ++ /* local ID (LID) which is a unique identifier which we can use */ ++ /* to differentiate between the encrypt/decrypt LAC session handles */ ++ if (NULL == sid) { ++ EPRINTK("%s(): Invalid input parameters - NULL sid.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (NULL == cri) { ++ EPRINTK("%s(): Invalid input parameters - NULL cryptoini.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (icp_ocfDrvDriverId != *sid) { ++ EPRINTK("%s(): Invalid input parameters - bad driver ID\n", ++ __FUNCTION__); ++ EPRINTK("\t sid = 0x08%p \n \t cri = 0x08%p \n", sid, cri); ++ return EINVAL; ++ } ++ ++ sessionData = kmem_cache_zalloc(drvSessionData_zone, GFP_ATOMIC); ++ if (NULL == sessionData) { ++ DPRINTK("%s():No memory for Session Data\n", __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ /*put this check in the spinlock so no new sessions can be added to the ++ linked list when we are exiting */ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ delete_session++; ++ ++ } else if (NO_OCF_TO_DRV_MAX_SESSIONS != max_sessions) { ++ if (atomic_read(&num_ocf_to_drv_registered_sessions) >= ++ (max_sessions - ++ atomic_read(&lac_session_failed_dereg_count))) { ++ delete_session++; ++ } else { ++ atomic_inc(&num_ocf_to_drv_registered_sessions); ++ /* Add to session data linked list */ ++ list_add(&(sessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead); ++ } ++ ++ } else if (NO_OCF_TO_DRV_MAX_SESSIONS == max_sessions) { ++ list_add(&(sessionData->listNode), ++ &icp_ocfDrvGlobalSymListHead); ++ } ++ ++ sessionData->inUse = ICP_SESSION_INITIALISED; ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (delete_session) { ++ DPRINTK("%s():No Session handles available\n", __FUNCTION__); ++ kmem_cache_free(drvSessionData_zone, sessionData); ++ return EPERM; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAlgorithmSetup(cri, &(sessionData->lacSessCtx))) { ++ DPRINTK("%s():algorithm not supported\n", __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EINVAL; ++ } ++ ++ if (cri->cri_next) { ++ if (cri->cri_next->cri_next != NULL) { ++ DPRINTK("%s():only two chained algorithms supported\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EPERM; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAlgorithmSetup(cri->cri_next, ++ &(sessionData->lacSessCtx))) { ++ DPRINTK("%s():second algorithm not supported\n", ++ __FUNCTION__); ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return EINVAL; ++ } ++ ++ sessionData->lacSessCtx.symOperation = ++ CPA_CY_SYM_OP_ALGORITHM_CHAINING; ++ } ++ ++ *sid = (uint32_t) sessionData; ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvAlgorithmSetup ++ * ++ * Description : This function builds the session context data from the ++ * information supplied through OCF. Algorithm chain order and whether the ++ * session is Encrypt/Decrypt can only be found out at perform time however, so ++ * the session is registered with LAC at that time. ++ */ ++static int ++icp_ocfDrvAlgorithmSetup(struct cryptoini *cri, ++ CpaCySymSessionSetupData * lacSessCtx) ++{ ++ ++ lacSessCtx->sessionPriority = CPA_CY_PRIORITY_NORMAL; ++ ++ switch (cri->cri_alg) { ++ ++ case CRYPTO_NULL_CBC: ++ DPRINTK("%s(): NULL CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_NULL; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_DES_CBC: ++ DPRINTK("%s(): DES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_DES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_3DES_CBC: ++ DPRINTK("%s(): 3DES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_3DES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_AES_CBC: ++ DPRINTK("%s(): AES CBC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_AES_CBC; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_ARC4: ++ DPRINTK("%s(): ARC4\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER; ++ lacSessCtx->cipherSetupData.cipherAlgorithm = ++ CPA_CY_SYM_CIPHER_ARC4; ++ lacSessCtx->cipherSetupData.cipherKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key; ++ break; ++ ++ case CRYPTO_SHA1: ++ DPRINTK("%s(): SHA1\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA1_HMAC: ++ DPRINTK("%s(): SHA1_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_256: ++ DPRINTK("%s(): SHA256\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA256; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_256_HMAC: ++ DPRINTK("%s(): SHA256_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA256; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_384: ++ DPRINTK("%s(): SHA384\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA384; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_384_HMAC: ++ DPRINTK("%s(): SHA384_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA384; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_SHA2_512: ++ DPRINTK("%s(): SHA512\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA512; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_SHA2_512_HMAC: ++ DPRINTK("%s(): SHA512_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = ++ CPA_CY_SYM_HASH_SHA512; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ case CRYPTO_MD5: ++ DPRINTK("%s(): MD5\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES); ++ ++ break; ++ ++ case CRYPTO_MD5_HMAC: ++ DPRINTK("%s(): MD5_HMAC\n", __FUNCTION__); ++ lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH; ++ lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5; ++ lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH; ++ lacSessCtx->hashSetupData.digestResultLenInBytes = ++ (cri->cri_mlen ? ++ cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES); ++ lacSessCtx->hashSetupData.authModeSetupData.authKey = ++ cri->cri_key; ++ lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes = ++ cri->cri_klen / NUM_BITS_IN_BYTE; ++ lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0; ++ ++ break; ++ ++ default: ++ DPRINTK("%s(): ALG Setup FAIL\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvFreeOCFSession ++ * ++ * Description : This function deletes all existing Session data representing ++ * the Cryptographic session established between OCF and this driver. This ++ * also includes freeing the memory allocated for the session context. The ++ * session object is also removed from the session linked list. ++ */ ++static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData) ++{ ++ ++ sessionData->inUse = ICP_SESSION_DEREGISTERED; ++ ++ /*ENTER CRITICAL SECTION */ ++ spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ /*If the Driver is exiting, allow that process to ++ handle any deletions */ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ return; ++ } ++ ++ atomic_dec(&num_ocf_to_drv_registered_sessions); ++ ++ list_del(&(sessionData->listNode)); ++ ++ /*EXIT CRITICAL SECTION */ ++ spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock); ++ ++ if (NULL != sessionData->sessHandle) { ++ kfree(sessionData->sessHandle); ++ } ++ kmem_cache_free(drvSessionData_zone, sessionData); ++} ++ ++/* Name : icp_ocfDrvFreeLACSession ++ * ++ * Description : This attempts to deregister a LAC session. If it fails, the ++ * deregistation retry function is called. ++ */ ++int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid) ++{ ++ CpaCySymSessionCtx sessionToDeregister = NULL; ++ struct icp_drvSessionData *sessionData = NULL; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ int retval = 0; ++ ++ sessionData = (struct icp_drvSessionData *)CRYPTO_SESID2LID(sid); ++ if (NULL == sessionData) { ++ EPRINTK("%s(): OCF Free session called with Null Session ID.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ sessionToDeregister = sessionData->sessHandle; ++ ++ if (ICP_SESSION_INITIALISED == sessionData->inUse) { ++ DPRINTK("%s() Session not registered with LAC\n", __FUNCTION__); ++ } else if (NULL == sessionData->sessHandle) { ++ EPRINTK ++ ("%s(): OCF Free session called with Null Session Handle.\n", ++ __FUNCTION__); ++ return EINVAL; ++ } else { ++ lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE, ++ sessionToDeregister); ++ if (CPA_STATUS_RETRY == lacStatus) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvDeregRetry(&sessionToDeregister)) { ++ /* the retry function increments the ++ dereg failed count */ ++ DPRINTK("%s(): LAC failed to deregister the " ++ "session. (localSessionId= %p)\n", ++ __FUNCTION__, sessionToDeregister); ++ retval = EPERM; ++ } ++ ++ } else if (CPA_STATUS_SUCCESS != lacStatus) { ++ DPRINTK("%s(): LAC failed to deregister the session. " ++ "localSessionId= %p, lacStatus = %d\n", ++ __FUNCTION__, sessionToDeregister, lacStatus); ++ atomic_inc(&lac_session_failed_dereg_count); ++ retval = EPERM; ++ } ++ } ++ ++ icp_ocfDrvFreeOCFSession(sessionData); ++ return retval; ++ ++} ++ ++/* Name : icp_ocfDrvAlgCheck ++ * ++ * Description : This function checks whether the cryptodesc argument pertains ++ * to a sym or hash function ++ */ ++static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc) ++{ ++ ++ if (crp_desc->crd_alg == CRYPTO_3DES_CBC || ++ crp_desc->crd_alg == CRYPTO_AES_CBC || ++ crp_desc->crd_alg == CRYPTO_DES_CBC || ++ crp_desc->crd_alg == CRYPTO_NULL_CBC || ++ crp_desc->crd_alg == CRYPTO_ARC4) { ++ return ICP_OCF_DRV_ALG_CIPHER; ++ } ++ ++ return ICP_OCF_DRV_ALG_HASH; ++} ++ ++/* Name : icp_ocfDrvSymProcess ++ * ++ * Description : This function will map symmetric functionality calls from OCF ++ * to the LAC API. It will also allocate memory to store the session context. ++ * ++ * Notes: If it is the first perform call for a given session, then a LAC ++ * session is registered. After the session is registered, no checks as ++ * to whether session paramaters have changed (e.g. alg chain order) are ++ * done. ++ */ ++int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint) ++{ ++ struct icp_drvSessionData *sessionData = NULL; ++ struct icp_drvOpData *drvOpData = NULL; ++ CpaStatus lacStatus = CPA_STATUS_SUCCESS; ++ Cpa32U sessionCtxSizeInBytes = 0; ++ uint16_t numBufferListArray = 0; ++ ++ if (NULL == crp) { ++ DPRINTK("%s(): Invalid input parameters, cryptop is NULL\n", ++ __FUNCTION__); ++ return EINVAL; ++ } ++ ++ if (NULL == crp->crp_desc) { ++ DPRINTK("%s(): Invalid input parameters, no crp_desc attached " ++ "to crp\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ if (NULL == crp->crp_buf) { ++ DPRINTK("%s(): Invalid input parameters, no buffer attached " ++ "to crp\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) { ++ crp->crp_etype = EFAULT; ++ return EFAULT; ++ } ++ ++ sessionData = (struct icp_drvSessionData *) ++ (CRYPTO_SESID2LID(crp->crp_sid)); ++ if (NULL == sessionData) { ++ DPRINTK("%s(): Invalid input parameters, Null Session ID \n", ++ __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++/*If we get a request against a deregisted session, cancel operation*/ ++ if (ICP_SESSION_DEREGISTERED == sessionData->inUse) { ++ DPRINTK("%s(): Session ID %d was deregistered \n", ++ __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid))); ++ crp->crp_etype = EFAULT; ++ return EFAULT; ++ } ++ ++/*If none of the session states are set, then the session structure was either ++ not initialised properly or we are reading from a freed memory area (possible ++ due to OCF batch mode not removing queued requests against deregistered ++ sessions*/ ++ if (ICP_SESSION_INITIALISED != sessionData->inUse && ++ ICP_SESSION_RUNNING != sessionData->inUse) { ++ DPRINTK("%s(): Session - ID %d - not properly initialised or " ++ "memory freed back to the kernel \n", ++ __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid))); ++ crp->crp_etype = EINVAL; ++ return EINVAL; ++ } ++ ++ /*For the below checks, remember error checking is already done in LAC. ++ We're not validating inputs subsequent to registration */ ++ if (sessionData->inUse == ICP_SESSION_INITIALISED) { ++ DPRINTK("%s(): Initialising session\n", __FUNCTION__); ++ ++ if (NULL != crp->crp_desc->crd_next) { ++ if (ICP_OCF_DRV_ALG_CIPHER == ++ icp_ocfDrvAlgCheck(crp->crp_desc)) { ++ ++ sessionData->lacSessCtx.algChainOrder = ++ CPA_CY_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH; ++ ++ if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ } else { ++ sessionData->lacSessCtx.algChainOrder = ++ CPA_CY_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER; ++ ++ if (crp->crp_desc->crd_next->crd_flags & ++ CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ ++ } ++ ++ } else if (ICP_OCF_DRV_ALG_CIPHER == ++ icp_ocfDrvAlgCheck(crp->crp_desc)) { ++ if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT; ++ } else { ++ sessionData->lacSessCtx.cipherSetupData. ++ cipherDirection = ++ CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT; ++ } ++ ++ } ++ ++ /*No action required for standalone Auth here */ ++ ++ /* Allocate memory for SymSessionCtx before the Session Registration */ ++ lacStatus = ++ cpaCySymSessionCtxGetSize(CPA_INSTANCE_HANDLE_SINGLE, ++ &(sessionData->lacSessCtx), ++ &sessionCtxSizeInBytes); ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymSessionCtxGetSize failed - %d\n", ++ __FUNCTION__, lacStatus); ++ return EINVAL; ++ } ++ sessionData->sessHandle = ++ kmalloc(sessionCtxSizeInBytes, GFP_ATOMIC); ++ if (NULL == sessionData->sessHandle) { ++ EPRINTK ++ ("%s(): Failed to get memory for SymSessionCtx\n", ++ __FUNCTION__); ++ return ENOMEM; ++ } ++ ++ lacStatus = cpaCySymInitSession(CPA_INSTANCE_HANDLE_SINGLE, ++ icp_ocfDrvSymCallBack, ++ &(sessionData->lacSessCtx), ++ sessionData->sessHandle); ++ ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymInitSession failed -%d \n", ++ __FUNCTION__, lacStatus); ++ return EFAULT; ++ } ++ ++ sessionData->inUse = ICP_SESSION_RUNNING; ++ } ++ ++ drvOpData = kmem_cache_zalloc(drvOpData_zone, GFP_ATOMIC); ++ if (NULL == drvOpData) { ++ EPRINTK("%s():Failed to get memory for drvOpData\n", ++ __FUNCTION__); ++ crp->crp_etype = ENOMEM; ++ return ENOMEM; ++ } ++ ++ drvOpData->lacOpData.pSessionCtx = sessionData->sessHandle; ++ drvOpData->digestSizeInBytes = sessionData->lacSessCtx.hashSetupData. ++ digestResultLenInBytes; ++ drvOpData->crp = crp; ++ ++ /* Set the default buffer list array memory allocation */ ++ drvOpData->srcBuffer.pBuffers = drvOpData->bufferListArray; ++ drvOpData->numBufferListArray = ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS; ++ ++ /* ++ * Allocate buffer list array memory allocation if the ++ * data fragment is more than the default allocation ++ */ ++ if (crp->crp_flags & CRYPTO_F_SKBUF) { ++ numBufferListArray = icp_ocfDrvGetSkBuffFrags((struct sk_buff *) ++ crp->crp_buf); ++ if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < numBufferListArray) { ++ DPRINTK("%s() numBufferListArray more than default\n", ++ __FUNCTION__); ++ drvOpData->srcBuffer.pBuffers = NULL; ++ drvOpData->srcBuffer.pBuffers = ++ kmalloc(numBufferListArray * ++ sizeof(CpaFlatBuffer), GFP_ATOMIC); ++ if (NULL == drvOpData->srcBuffer.pBuffers) { ++ EPRINTK("%s() Failed to get memory for " ++ "pBuffers\n", __FUNCTION__); ++ kmem_cache_free(drvOpData_zone, drvOpData); ++ crp->crp_etype = ENOMEM; ++ return ENOMEM; ++ } ++ drvOpData->numBufferListArray = numBufferListArray; ++ } ++ } ++ ++ /* ++ * Check the type of buffer structure we got and convert it into ++ * CpaBufferList format. ++ */ ++ if (crp->crp_flags & CRYPTO_F_SKBUF) { ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvSkBuffToBufferList((struct sk_buff *)crp->crp_buf, ++ &(drvOpData->srcBuffer))) { ++ EPRINTK("%s():Failed to translate from SK_BUF " ++ "to bufferlist\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ drvOpData->bufferType = CRYPTO_F_SKBUF; ++ } else if (crp->crp_flags & CRYPTO_F_IOV) { ++ /* OCF only supports IOV of one entry. */ ++ if (NUM_IOV_SUPPORTED == ++ ((struct uio *)(crp->crp_buf))->uio_iovcnt) { ++ ++ icp_ocfDrvPtrAndLenToBufferList(((struct uio *)(crp-> ++ crp_buf))-> ++ uio_iov[0].iov_base, ++ ((struct uio *)(crp-> ++ crp_buf))-> ++ uio_iov[0].iov_len, ++ &(drvOpData-> ++ srcBuffer)); ++ ++ drvOpData->bufferType = CRYPTO_F_IOV; ++ ++ } else { ++ DPRINTK("%s():Unable to handle IOVs with lengths of " ++ "greater than one!\n", __FUNCTION__); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ } else { ++ icp_ocfDrvPtrAndLenToBufferList(crp->crp_buf, ++ crp->crp_ilen, ++ &(drvOpData->srcBuffer)); ++ ++ drvOpData->bufferType = CRYPTO_BUF_CONTIG; ++ } ++ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->crp_desc)) { ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ if (drvOpData->crp->crp_desc->crd_next != NULL) { ++ if (icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp-> ++ crp_desc->crd_next)) { ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ } ++ ++ /* Allocate srcBuffer's private meta data */ ++ if (ICP_OCF_DRV_STATUS_SUCCESS != ++ icp_ocfDrvAllocMetaData(&(drvOpData->srcBuffer), drvOpData)) { ++ EPRINTK("%s() icp_ocfDrvAllocMetaData failed\n", __FUNCTION__); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ /* Perform "in-place" crypto operation */ ++ lacStatus = cpaCySymPerformOp(CPA_INSTANCE_HANDLE_SINGLE, ++ (void *)drvOpData, ++ &(drvOpData->lacOpData), ++ &(drvOpData->srcBuffer), ++ &(drvOpData->srcBuffer), ++ &(drvOpData->verifyResult)); ++ if (CPA_STATUS_RETRY == lacStatus) { ++ DPRINTK("%s(): cpaCySymPerformOp retry, lacStatus = %d\n", ++ __FUNCTION__, lacStatus); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ if (CPA_STATUS_SUCCESS != lacStatus) { ++ EPRINTK("%s(): cpaCySymPerformOp failed, lacStatus = %d\n", ++ __FUNCTION__, lacStatus); ++ memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData)); ++ crp->crp_etype = EINVAL; ++ goto err; ++ } ++ ++ return 0; //OCF success status value ++ ++ err: ++ if (drvOpData->numBufferListArray > ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) { ++ kfree(drvOpData->srcBuffer.pBuffers); ++ } ++ icp_ocfDrvFreeMetaData(&(drvOpData->srcBuffer)); ++ kmem_cache_free(drvOpData_zone, drvOpData); ++ ++ return crp->crp_etype; ++} ++ ++/* Name : icp_ocfDrvProcessDataSetup ++ * ++ * Description : This function will setup all the cryptographic operation data ++ * that is required by LAC to execute the operation. ++ */ ++static int icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc) ++{ ++ CpaCyRandGenOpData randGenOpData; ++ CpaFlatBuffer randData; ++ ++ drvOpData->lacOpData.packetType = CPA_CY_SYM_PACKET_TYPE_FULL; ++ ++ /* Convert from the cryptop to the ICP LAC crypto parameters */ ++ switch (crp_desc->crd_alg) { ++ case CRYPTO_NULL_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = NULL_BLOCK_LEN; ++ break; ++ case CRYPTO_DES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = DES_BLOCK_LEN; ++ break; ++ case CRYPTO_3DES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = DES3_BLOCK_LEN; ++ break; ++ case CRYPTO_ARC4: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = ARC4_COUNTER_LEN; ++ break; ++ case CRYPTO_AES_CBC: ++ drvOpData->lacOpData. ++ cryptoStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToCipherInBytes = crp_desc->crd_len; ++ drvOpData->verifyResult = CPA_FALSE; ++ drvOpData->lacOpData.ivLenInBytes = RIJNDAEL128_BLOCK_LEN; ++ break; ++ case CRYPTO_SHA1: ++ case CRYPTO_SHA1_HMAC: ++ case CRYPTO_SHA2_256: ++ case CRYPTO_SHA2_256_HMAC: ++ case CRYPTO_SHA2_384: ++ case CRYPTO_SHA2_384_HMAC: ++ case CRYPTO_SHA2_512: ++ case CRYPTO_SHA2_512_HMAC: ++ case CRYPTO_MD5: ++ case CRYPTO_MD5_HMAC: ++ drvOpData->lacOpData. ++ hashStartSrcOffsetInBytes = crp_desc->crd_skip; ++ drvOpData->lacOpData. ++ messageLenToHashInBytes = crp_desc->crd_len; ++ drvOpData->lacOpData. ++ pDigestResult = ++ icp_ocfDrvDigestPointerFind(drvOpData, crp_desc); ++ ++ if (NULL == drvOpData->lacOpData.pDigestResult) { ++ DPRINTK("%s(): ERROR - could not calculate " ++ "Digest Result memory address\n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ drvOpData->lacOpData.digestVerify = CPA_FALSE; ++ break; ++ default: ++ DPRINTK("%s(): Crypto process error - algorithm not " ++ "found \n", __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ /* Figure out what the IV is supposed to be */ ++ if ((crp_desc->crd_alg == CRYPTO_DES_CBC) || ++ (crp_desc->crd_alg == CRYPTO_3DES_CBC) || ++ (crp_desc->crd_alg == CRYPTO_AES_CBC)) { ++ /*ARC4 doesn't use an IV */ ++ if (crp_desc->crd_flags & CRD_F_IV_EXPLICIT) { ++ /* Explicit IV provided to OCF */ ++ drvOpData->lacOpData.pIv = crp_desc->crd_iv; ++ } else { ++ /* IV is not explicitly provided to OCF */ ++ ++ /* Point the LAC OP Data IV pointer to our allocated ++ storage location for this session. */ ++ drvOpData->lacOpData.pIv = drvOpData->ivData; ++ ++ if ((crp_desc->crd_flags & CRD_F_ENCRYPT) && ++ ((crp_desc->crd_flags & CRD_F_IV_PRESENT) == 0)) { ++ ++ /* Encrypting - need to create IV */ ++ randGenOpData.generateBits = CPA_TRUE; ++ randGenOpData.lenInBytes = MAX_IV_LEN_IN_BYTES; ++ ++ icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) ++ drvOpData-> ++ ivData, ++ MAX_IV_LEN_IN_BYTES, ++ &randData); ++ ++ if (CPA_STATUS_SUCCESS != ++ cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE, ++ NULL, NULL, ++ &randGenOpData, &randData)) { ++ DPRINTK("%s(): ERROR - Failed to" ++ " generate" ++ " Initialisation Vector\n", ++ __FUNCTION__); ++ return ICP_OCF_DRV_STATUS_FAIL; ++ } ++ ++ crypto_copyback(drvOpData->crp-> ++ crp_flags, ++ drvOpData->crp->crp_buf, ++ crp_desc->crd_inject, ++ drvOpData->lacOpData. ++ ivLenInBytes, ++ (caddr_t) (drvOpData->lacOpData. ++ pIv)); ++ } else { ++ /* Reading IV from buffer */ ++ crypto_copydata(drvOpData->crp-> ++ crp_flags, ++ drvOpData->crp->crp_buf, ++ crp_desc->crd_inject, ++ drvOpData->lacOpData. ++ ivLenInBytes, ++ (caddr_t) (drvOpData->lacOpData. ++ pIv)); ++ } ++ ++ } ++ ++ } ++ ++ return ICP_OCF_DRV_STATUS_SUCCESS; ++} ++ ++/* Name : icp_ocfDrvDigestPointerFind ++ * ++ * Description : This function is used to find the memory address of where the ++ * digest information shall be stored in. Input buffer types are an skbuff, iov ++ * or flat buffer. The address is found using the buffer data start address and ++ * an offset. ++ * ++ * Note: In the case of a linux skbuff, the digest address may exist within ++ * a memory space linked to from the start buffer. These linked memory spaces ++ * must be traversed by the data length offset in order to find the digest start ++ * address. Whether there is enough space for the digest must also be checked. ++ */ ++ ++static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData, ++ struct cryptodesc *crp_desc) ++{ ++ ++ int offsetInBytes = crp_desc->crd_inject; ++ uint32_t digestSizeInBytes = drvOpData->digestSizeInBytes; ++ uint8_t *flat_buffer_base = NULL; ++ int flat_buffer_length = 0; ++ struct sk_buff *skb; ++ ++ if (drvOpData->crp->crp_flags & CRYPTO_F_SKBUF) { ++ /*check if enough overall space to store hash */ ++ skb = (struct sk_buff *)(drvOpData->crp->crp_buf); ++ ++ if (skb->len < (offsetInBytes + digestSizeInBytes)) { ++ DPRINTK("%s() Not enough space for Digest" ++ " payload after the offset (%d), " ++ "digest size (%d) \n", __FUNCTION__, ++ offsetInBytes, digestSizeInBytes); ++ return NULL; ++ } ++ ++ return icp_ocfDrvSkbuffDigestPointerFind(drvOpData, ++ offsetInBytes, ++ digestSizeInBytes); ++ ++ } else { ++ /* IOV or flat buffer */ ++ if (drvOpData->crp->crp_flags & CRYPTO_F_IOV) { ++ /*single IOV check has already been done */ ++ flat_buffer_base = ((struct uio *) ++ (drvOpData->crp->crp_buf))-> ++ uio_iov[0].iov_base; ++ flat_buffer_length = ((struct uio *) ++ (drvOpData->crp->crp_buf))-> ++ uio_iov[0].iov_len; ++ } else { ++ flat_buffer_base = (uint8_t *) drvOpData->crp->crp_buf; ++ flat_buffer_length = drvOpData->crp->crp_ilen; ++ } ++ ++ if (flat_buffer_length < (offsetInBytes + digestSizeInBytes)) { ++ DPRINTK("%s() Not enough space for Digest " ++ "(IOV/Flat Buffer) \n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) (flat_buffer_base + offsetInBytes); ++ } ++ } ++ DPRINTK("%s() Should not reach this point\n", __FUNCTION__); ++ return NULL; ++} ++ ++/* Name : icp_ocfDrvSkbuffDigestPointerFind ++ * ++ * Description : This function is used by icp_ocfDrvDigestPointerFind to process ++ * the non-linear portion of the skbuff if the fragmentation type is a linked ++ * list (frag_list is not NULL in the skb_shared_info structure) ++ */ ++static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData ++ *drvOpData, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ ++ struct sk_buff *skb = NULL; ++ struct skb_shared_info *skb_shared = NULL; ++ ++ uint32_t skbuffisnonlinear = 0; ++ ++ uint32_t skbheadlen = 0; ++ ++ skb = (struct sk_buff *)(drvOpData->crp->crp_buf); ++ skbuffisnonlinear = skb_is_nonlinear(skb); ++ ++ skbheadlen = skb_headlen(skb); ++ ++ /*Linear skb checks */ ++ if (skbheadlen > offsetInBytes) { ++ ++ if (skbheadlen >= (offsetInBytes + digestSizeInBytes)) { ++ return (uint8_t *) (skb->data + offsetInBytes); ++ } else { ++ DPRINTK("%s() Auth payload stretches " ++ "accross contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } ++ } else { ++ if (skbuffisnonlinear) { ++ offsetInBytes -= skbheadlen; ++ } else { ++ DPRINTK("%s() Offset outside of buffer boundaries\n", ++ __FUNCTION__); ++ return NULL; ++ } ++ } ++ ++ /*Non Linear checks */ ++ skb_shared = (struct skb_shared_info *)(skb->end); ++ if (unlikely(NULL == skb_shared)) { ++ DPRINTK("%s() skbuff shared info stucture is NULL! \n", ++ __FUNCTION__); ++ return NULL; ++ } else if ((0 != skb_shared->nr_frags) && ++ (skb_shared->frag_list != NULL)) { ++ DPRINTK("%s() skbuff nr_frags AND " ++ "frag_list not supported \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ /*TCP segmentation more likely than IP fragmentation */ ++ if (likely(0 != skb_shared->nr_frags)) { ++ return icp_ocfDrvDigestSkbNRFragsCheck(skb, skb_shared, ++ offsetInBytes, ++ digestSizeInBytes); ++ } else if (skb_shared->frag_list != NULL) { ++ return icp_ocfDrvDigestSkbFragListCheck(skb, skb_shared, ++ offsetInBytes, ++ digestSizeInBytes); ++ } else { ++ DPRINTK("%s() skbuff is non-linear but does not show any " ++ "linked data\n", __FUNCTION__); ++ return NULL; ++ } ++ ++} ++ ++/* Name : icp_ocfDrvDigestSkbNRFragsCheck ++ * ++ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to ++ * process the non-linear portion of the skbuff, if the fragmentation type is ++ * page fragments ++ */ ++static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ int i = 0; ++ /*nr_frags starts from 1 */ ++ if (MAX_SKB_FRAGS < skb_shared->nr_frags) { ++ DPRINTK("%s error processing skbuff " ++ "page frame -- MAX FRAGS exceeded \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ for (i = 0; i < skb_shared->nr_frags; i++) { ++ ++ if (offsetInBytes >= skb_shared->frags[i].size) { ++ /*offset still greater than data position */ ++ offsetInBytes -= skb_shared->frags[i].size; ++ } else { ++ /* found the page containing start of hash */ ++ ++ if (NULL == skb_shared->frags[i].page) { ++ DPRINTK("%s() Linked page is NULL!\n", ++ __FUNCTION__); ++ return NULL; ++ } ++ ++ if (offsetInBytes + digestSizeInBytes > ++ skb_shared->frags[i].size) { ++ DPRINTK("%s() Auth payload stretches accross " ++ "contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) (skb_shared->frags[i].page + ++ skb_shared->frags[i]. ++ page_offset + ++ offsetInBytes); ++ } ++ } ++ /*only possible if internal page sizes are set wrong */ ++ if (offsetInBytes < 0) { ++ DPRINTK("%s error processing skbuff page frame " ++ "-- offset calculation \n", __FUNCTION__); ++ return NULL; ++ } ++ } ++ /*only possible if internal page sizes are set wrong */ ++ DPRINTK("%s error processing skbuff page frame " ++ "-- ran out of page fragments, remaining offset = %d \n", ++ __FUNCTION__, offsetInBytes); ++ return NULL; ++ ++} ++ ++/* Name : icp_ocfDrvDigestSkbFragListCheck ++ * ++ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to ++ * process the non-linear portion of the skbuff, if the fragmentation type is ++ * a linked list ++ * ++ */ ++static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb, ++ struct skb_shared_info ++ *skb_shared, ++ int offsetInBytes, ++ uint32_t ++ digestSizeInBytes) ++{ ++ ++ struct sk_buff *skb_list = skb_shared->frag_list; ++ /*check added for readability */ ++ if (NULL == skb_list) { ++ DPRINTK("%s error processing skbuff " ++ "-- no more list! \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ for (; skb_list; skb_list = skb_list->next) { ++ if (NULL == skb_list) { ++ DPRINTK("%s error processing skbuff " ++ "-- no more list! \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ if (offsetInBytes >= skb_list->len) { ++ offsetInBytes -= skb_list->len; ++ ++ } else { ++ if (offsetInBytes + digestSizeInBytes > skb_list->len) { ++ DPRINTK("%s() Auth payload stretches accross " ++ "contiguous memory\n", __FUNCTION__); ++ return NULL; ++ } else { ++ return (uint8_t *) ++ (skb_list->data + offsetInBytes); ++ } ++ ++ } ++ ++ /*This check is only needed if internal skb_list length values ++ are set wrong. */ ++ if (0 > offsetInBytes) { ++ DPRINTK("%s() error processing skbuff object -- offset " ++ "calculation \n", __FUNCTION__); ++ return NULL; ++ } ++ ++ } ++ ++ /*catch all for unusual for-loop exit. ++ This code should never be reached */ ++ DPRINTK("%s() Catch-All hit! Process error.\n", __FUNCTION__); ++ return NULL; ++} +--- /dev/null +++ b/crypto/ocf/pasemi/pasemi.c @@ -0,0 +1,1009 @@ +/* diff --git a/target/linux/generic-2.6/patches-2.6.25/951-ocf-scatterlist-inc.patch b/target/linux/generic-2.6/patches-2.6.27/972-ocf_compile_fix.patch similarity index 72% rename from target/linux/generic-2.6/patches-2.6.25/951-ocf-scatterlist-inc.patch rename to target/linux/generic-2.6/patches-2.6.27/972-ocf_compile_fix.patch index 578558d0b7..a3fa226814 100644 --- a/target/linux/generic-2.6/patches-2.6.25/951-ocf-scatterlist-inc.patch +++ b/target/linux/generic-2.6/patches-2.6.27/972-ocf_compile_fix.patch @@ -1,9 +1,10 @@ --- a/crypto/ocf/cryptosoft.c +++ b/crypto/ocf/cryptosoft.c -@@ -48,6 +48,7 @@ +@@ -47,7 +47,7 @@ + #include #include #include - #include +-#include +#include #include