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588 lines
18 KiB
Diff
588 lines
18 KiB
Diff
From dff8eadcab33209e040e77a5d56d5def04808144 Mon Sep 17 00:00:00 2001
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From: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
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Date: Fri, 15 Mar 2019 09:35:37 +0000
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Subject: [PATCH] tc: add support for action act_ctinfo
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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ctinfo is a tc action restoring data stored in conntrack marks to
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various fields. At present it has two independent modes of operation,
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restoration of DSCP into IPv4/v6 diffserv and restoration of conntrack
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marks into packet skb marks.
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It understands a number of parameters specific to this action in
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additional to the usual action syntax. Each operating mode is
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independent of the other so all options are optional, however not
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specifying at least one mode is a bit pointless.
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Usage: ... ctinfo [dscp mask [statemask]] [cpmark [mask]] [zone ZONE]
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[CONTROL] [index <INDEX>]
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DSCP mode
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dscp enables copying of a DSCP stored in the conntrack mark into the
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ipv4/v6 diffserv field. The mask is a 32bit field and specifies where
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in the conntrack mark the DSCP value is located. It must be 6
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contiguous bits long. eg. 0xfc000000 would restore the DSCP from the
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upper 6 bits of the conntrack mark.
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The DSCP copying may be optionally controlled by a statemask. The
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statemask is a 32bit field, usually with a single bit set and must not
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overlap the dscp mask. The DSCP restore operation will only take place
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if the corresponding bit/s in conntrack mark ANDed with the statemask
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yield a non zero result.
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eg. dscp 0xfc000000 0x01000000 would retrieve the DSCP from the top 6
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bits, whilst using bit 25 as a flag to do so. Bit 26 is unused in this
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example.
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CPMARK mode
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cpmark enables copying of the conntrack mark to the packet skb mark. In
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this mode it is completely equivalent to the existing act_connmark
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action. Additional functionality is provided by the optional mask
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parameter, whereby the stored conntrack mark is logically ANDed with the
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cpmark mask before being stored into skb mark. This allows shared usage
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of the conntrack mark between applications.
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eg. cpmark 0x00ffffff would restore only the lower 24 bits of the
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conntrack mark, thus may be useful in the event that the upper 8 bits
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are used by the DSCP function.
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Usage: ... ctinfo [dscp mask [statemask]] [cpmark [mask]] [zone ZONE]
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[CONTROL] [index <INDEX>]
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where :
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dscp MASK is the bitmask to restore DSCP
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STATEMASK is the bitmask to determine conditional restoring
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cpmark MASK mask applied to restored packet mark
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ZONE is the conntrack zone
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CONTROL := reclassify | pipe | drop | continue | ok |
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goto chain <CHAIN_INDEX>
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Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
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Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
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---
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include/uapi/linux/pkt_cls.h | 3 +-
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include/uapi/linux/tc_act/tc_ctinfo.h | 29 +++
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man/man8/tc-ctinfo.8 | 170 ++++++++++++++++
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tc/Makefile | 1 +
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tc/m_ctinfo.c | 268 ++++++++++++++++++++++++++
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5 files changed, 470 insertions(+), 1 deletion(-)
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create mode 100644 include/uapi/linux/tc_act/tc_ctinfo.h
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create mode 100644 man/man8/tc-ctinfo.8
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create mode 100644 tc/m_ctinfo.c
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diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h
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index 95d0db2a..a6e7e176 100644
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--- a/include/uapi/linux/pkt_cls.h
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+++ b/include/uapi/linux/pkt_cls.h
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@@ -105,6 +105,7 @@ enum tca_id {
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TCA_ID_IFE = TCA_ACT_IFE,
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TCA_ID_SAMPLE = TCA_ACT_SAMPLE,
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/* other actions go here */
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+ TCA_ID_CTINFO=27,
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__TCA_ID_MAX = 255
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};
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diff --git a/include/uapi/linux/tc_act/tc_ctinfo.h b/include/uapi/linux/tc_act/tc_ctinfo.h
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new file mode 100644
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index 00000000..f5f26d95
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--- /dev/null
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+++ b/include/uapi/linux/tc_act/tc_ctinfo.h
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@@ -0,0 +1,29 @@
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+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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+#ifndef __UAPI_TC_CTINFO_H
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+#define __UAPI_TC_CTINFO_H
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+
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+#include <linux/types.h>
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+#include <linux/pkt_cls.h>
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+
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+struct tc_ctinfo {
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+ tc_gen;
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+};
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+
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+enum {
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+ TCA_CTINFO_UNSPEC,
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+ TCA_CTINFO_PAD,
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+ TCA_CTINFO_TM,
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+ TCA_CTINFO_ACT,
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+ TCA_CTINFO_ZONE,
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+ TCA_CTINFO_PARMS_DSCP_MASK,
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+ TCA_CTINFO_PARMS_DSCP_STATEMASK,
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+ TCA_CTINFO_PARMS_CPMARK_MASK,
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+ TCA_CTINFO_STATS_DSCP_SET,
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+ TCA_CTINFO_STATS_DSCP_ERROR,
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+ TCA_CTINFO_STATS_CPMARK_SET,
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+ __TCA_CTINFO_MAX
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+};
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+
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+#define TCA_CTINFO_MAX (__TCA_CTINFO_MAX - 1)
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+
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+#endif
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diff --git a/man/man8/tc-ctinfo.8 b/man/man8/tc-ctinfo.8
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new file mode 100644
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index 00000000..096590d1
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--- /dev/null
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+++ b/man/man8/tc-ctinfo.8
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@@ -0,0 +1,170 @@
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+.TH "ctinfo action in tc" 8 "4 Jun 2019" "iproute2" "Linux"
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+.SH NAME
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+ctinfo \- tc connmark processing action
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+.SH SYNOPSIS
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+.B tc ... action ctinfo
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+[
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+.B dscp
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+MASK [STATEMASK] ] [
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+.B cpmark
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+[MASK] ] [
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+.B zone
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+ZONE ] [
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+.B CONTROL
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+] [
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+.B index
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+<INDEX>
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+]
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+
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+.SH DESCRIPTION
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+CTINFO (Conntrack Information) is a tc action for retrieving data from
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+conntrack marks into various fields. At present it has two independent
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+processing modes which may be viewed as sub-functions.
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+
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+DSCP mode copies a DSCP stored in conntrack's connmark into the IPv4/v6 diffserv
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+field. The copying may conditionally occur based on a flag also stored in the
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+connmark. DSCP mode was designed to assist in restoring packet classifications on
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+ingress, classifications which may then be used by qdiscs such as CAKE. It may be
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+used in any circumstance where ingress classification needs to be maintained across
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+links that otherwise bleach or remap according to their own policies.
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+
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+CPMARK (copymark) mode copies the conntrack connmark into the packet's mark field. Without
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+additional parameters it is functionally completely equivalent to the existing
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+connmark action. An optional mask may be specified to mask which bits of the
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+connmark are restored. This may be useful when DSCP and CPMARK modes are combined.
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+
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+Simple statistics (tc -s) on DSCP restores and CPMARK copies are maintained where values for
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+set indicate a count of packets altered for that mode. DSCP includes an error count
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+where the destination packet's diffserv field was unwriteable.
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+.SH PARAMETERS
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+.SS DSCP mode parameters:
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+.IP mask
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+A mask of 6 contiguous bits indicating where the DSCP value is located in the 32 bit
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+conntrack mark field. A mask must be provided for this mode. mask is a 32 bit
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+unsigned value.
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+.IP statemask
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+A mask of at least 1 bit indicating where a conditional restore flag is located in the
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+32 bit conntrack mark field. The statemask bit/s must NOT overlap the mask bits. The
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+DSCP will be restored if the conntrack mark logically ANDed with the statemask yields
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+a non-zero result. statemask is an optional unsigned 32 bit value.
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+.SS CPMARK mode parameters:
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+.IP mask
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+Store the logically ANDed result of conntrack mark and mask into the packet's mark
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+field. Default is 0xffffffff i.e. the whole mark field. mask is an optional unsigned 32 bit
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+value
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+.SS Overall action parameters:
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+.IP zone
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+Specify the conntrack zone when doing conntrack lookups for packets.
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+zone is a 16bit unsigned decimal value.
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+Default is 0.
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+.IP CONTROL
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+The following keywords allow to control how the tree of qdisc, classes,
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+filters and actions is further traversed after this action.
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+.RS
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+.TP
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+.B reclassify
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+Restart with the first filter in the current list.
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+.TP
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+.B pipe
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+Continue with the next action attached to the same filter.
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+.TP
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+.B drop
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+Drop the packet.
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+.TP
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+.B shot
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+synonym for
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+.B drop
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+.TP
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+.B continue
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+Continue classification with the next filter in line.
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+.TP
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+.B pass
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+Finish classification process and return to calling qdisc for further packet
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+processing. This is the default.
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+.RE
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+.IP index
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+Specify an index for this action in order to being able to identify it in later
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+commands. index is a 32bit unsigned decimal value.
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+.SH EXAMPLES
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+Example showing conditional restoration of DSCP on ingress via an IFB
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+.RS
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+.EX
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+
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+#Set up the IFB interface
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+.br
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+tc qdisc add dev ifb4eth0 handle ffff: ingress
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+
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+#Put CAKE qdisc on it
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+.br
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+tc qdisc add dev ifb4eth0 root cake bandwidth 40mbit
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+
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+#Set interface UP
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+.br
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+ip link set dev ifb4eth0 up
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+
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+#Add 2 actions, ctinfo to restore dscp & mirred to redirect the packets to IFB
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+.br
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+tc filter add dev eth0 parent ffff: protocol all prio 10 u32 \\
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+ match u32 0 0 flowid 1:1 action \\
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+ ctinfo dscp 0xfc000000 0x01000000 \\
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+ mirred egress redirect dev ifb4eth0
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+
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+tc -s qdisc show dev eth0 ingress
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+
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+ filter parent ffff: protocol all pref 10 u32 chain 0
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+ filter parent ffff: protocol all pref 10 u32 chain 0 fh 800: ht divisor 1
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+ filter parent ffff: protocol all pref 10 u32 chain 0 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1 not_in_hw
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+ match 00000000/00000000 at 0
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+ action order 1: ctinfo zone 0 pipe
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+ index 2 ref 1 bind 1 dscp 0xfc000000 0x01000000 installed 72 sec used 0 sec DSCP set 1333 error 0 CPMARK set 0
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+ Action statistics:
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+ Sent 658484 bytes 1833 pkt (dropped 0, overlimits 0 requeues 0)
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+ backlog 0b 0p requeues 0
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+
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+ action order 2: mirred (Egress Redirect to device ifb4eth0) stolen
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+ index 1 ref 1 bind 1 installed 72 sec used 0 sec
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+ Action statistics:
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+ Sent 658484 bytes 1833 pkt (dropped 0, overlimits 0 requeues 0)
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+ backlog 0b 0p requeues 0
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+.EE
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+.RE
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+
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+Example showing conditional restoration of DSCP on egress
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+
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+This may appear nonsensical since iptables marking of egress packets is easy
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+to achieve, however the iptables flow classification rules may be extensive
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+and so some sort of set once and forget may be useful especially on cpu
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+constrained devices.
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+.RS
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+.EX
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+
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+# Send unmarked connections to a marking chain which needs to store a DSCP
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+and set statemask bit in the connmark
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+.br
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+iptables -t mangle -A POSTROUTING -o eth0 -m connmark \\
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+ --mark 0x00000000/0x01000000 -g CLASS_MARKING_CHAIN
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+
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+# Apply marked DSCP to the packets
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+.br
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+tc filter add dev eth0 protocol all prio 10 u32 \\
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+ match u32 0 0 flowid 1:1 action \\
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+ ctinfo dscp 0xfc000000 0x01000000
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+
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+tc -s filter show dev eth0
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+ filter parent 800e: protocol all pref 10 u32 chain 0
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+ filter parent 800e: protocol all pref 10 u32 chain 0 fh 800: ht divisor 1
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+ filter parent 800e: protocol all pref 10 u32 chain 0 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1 not_in_hw
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+ match 00000000/00000000 at 0
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+ action order 1: ctinfo zone 0 pipe
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+ index 1 ref 1 bind 1 dscp 0xfc000000 0x01000000 installed 7414 sec used 0 sec DSCP set 53404 error 0 CPMARK set 0
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+ Action statistics:
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+ Sent 32890260 bytes 120441 pkt (dropped 0, overlimits 0 requeues 0)
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+ backlog 0b 0p requeues 0
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+.br
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+.SH SEE ALSO
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+.BR tc (8),
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+.BR tc-cake (8)
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+.BR tc-connmark (8)
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+.BR tc-mirred (8)
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+.SH AUTHORS
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+ctinfo was written by Kevin Darbyshire-Bryant.
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diff --git a/tc/Makefile b/tc/Makefile
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index 2edaf2c8..ec93a9a1 100644
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--- a/tc/Makefile
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+++ b/tc/Makefile
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@@ -48,6 +48,7 @@ TCMODULES += m_csum.o
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TCMODULES += m_simple.o
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TCMODULES += m_vlan.o
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TCMODULES += m_connmark.o
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+TCMODULES += m_ctinfo.o
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TCMODULES += m_bpf.o
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TCMODULES += m_tunnel_key.o
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TCMODULES += m_sample.o
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diff --git a/tc/m_ctinfo.c b/tc/m_ctinfo.c
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new file mode 100644
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index 00000000..5e451f87
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--- /dev/null
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+++ b/tc/m_ctinfo.c
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@@ -0,0 +1,268 @@
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+/* SPDX-License-Identifier: GPL-2.0 */
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+/*
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+ * m_ctinfo.c netfilter ctinfo mark action
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+ *
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+ * Copyright (c) 2019 Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
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+ */
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+
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <unistd.h>
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+#include <string.h>
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+#include "utils.h"
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+#include "tc_util.h"
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+#include <linux/tc_act/tc_ctinfo.h>
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+
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+static void
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+explain(void)
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+{
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+ fprintf(stderr,
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+ "Usage: ... ctinfo [dscp mask [statemask]] [cpmark [mask]] [zone ZONE] [CONTROL] [index <INDEX>]\n"
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+ "where :\n"
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+ "\tdscp MASK bitmask location of stored DSCP\n"
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+ "\t STATEMASK bitmask to determine conditional restoring\n"
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+ "\tcpmark MASK mask applied to mark on restoration\n"
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+ "\tZONE is the conntrack zone\n"
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+ "\tCONTROL := reclassify | pipe | drop | continue | ok |\n"
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+ "\t goto chain <CHAIN_INDEX>\n");
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+}
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+
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+static void
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+usage(void)
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+{
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+ explain();
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+ exit(-1);
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+}
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+
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+static int
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+parse_ctinfo(struct action_util *a, int *argc_p, char ***argv_p, int tca_id,
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+ struct nlmsghdr *n)
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+{
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+ unsigned int cpmarkmask = 0, dscpmask = 0, dscpstatemask = 0;
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+ struct tc_ctinfo sel = {};
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+ unsigned short zone = 0;
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+ char **argv = *argv_p;
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+ struct rtattr *tail;
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+ int argc = *argc_p;
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+ int ok = 0;
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+ __u8 i;
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+
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+ while (argc > 0) {
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+ if (matches(*argv, "ctinfo") == 0) {
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+ ok = 1;
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+ NEXT_ARG_FWD();
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+ } else if (matches(*argv, "help") == 0) {
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+ usage();
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+ } else {
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+ break;
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+ }
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+
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+ }
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+
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+ if (!ok) {
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+ explain();
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+ return -1;
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+ }
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+
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+ if (argc) {
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+ if (matches(*argv, "dscp") == 0) {
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+ NEXT_ARG();
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+ if (get_u32(&dscpmask, *argv, 0)) {
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+ fprintf(stderr,
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+ "ctinfo: Illegal dscp \"mask\"\n");
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+ return -1;
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+ }
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+ if (NEXT_ARG_OK()) {
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+ NEXT_ARG_FWD();
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+ if (!get_u32(&dscpstatemask, *argv, 0))
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+ NEXT_ARG_FWD(); /* was a statemask */
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+ } else {
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+ NEXT_ARG_FWD();
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+ }
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+ }
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+ }
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+
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+ /* cpmark has optional mask parameter, so the next arg might not */
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+ /* exist, or it might be the next option, or it may actually be a */
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+ /* 32bit mask */
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+ if (argc) {
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+ if (matches(*argv, "cpmark") == 0) {
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+ cpmarkmask = ~0;
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+ if (NEXT_ARG_OK()) {
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+ NEXT_ARG_FWD();
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+ if (!get_u32(&cpmarkmask, *argv, 0))
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+ NEXT_ARG_FWD(); /* was a mask */
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+ } else {
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+ NEXT_ARG_FWD();
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+ }
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+ }
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+ }
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+
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+ if (argc) {
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+ if (matches(*argv, "zone") == 0) {
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+ NEXT_ARG();
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+ if (get_u16(&zone, *argv, 10)) {
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+ fprintf(stderr, "ctinfo: Illegal \"zone\"\n");
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+ return -1;
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+ }
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+ NEXT_ARG_FWD();
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+ }
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+ }
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+
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+ parse_action_control_dflt(&argc, &argv, &sel.action,
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+ false, TC_ACT_PIPE);
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+
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+ if (argc) {
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+ if (matches(*argv, "index") == 0) {
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+ NEXT_ARG();
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+ if (get_u32(&sel.index, *argv, 10)) {
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+ fprintf(stderr, "ctinfo: Illegal \"index\"\n");
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+ return -1;
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+ }
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+ NEXT_ARG_FWD();
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+ }
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+ }
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+
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+ if (dscpmask & dscpstatemask) {
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+ fprintf(stderr,
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+ "ctinfo: dscp mask & statemask must NOT overlap\n");
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+ return -1;
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+ }
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+
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+ i = ffs(dscpmask);
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+ if (i && ((~0 & (dscpmask >> (i - 1))) != 0x3f)) {
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+ fprintf(stderr,
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+ "ctinfo: dscp mask must be 6 contiguous bits long\n");
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+ return -1;
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+ }
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+
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+ tail = addattr_nest(n, MAX_MSG, tca_id);
|
|
+ addattr_l(n, MAX_MSG, TCA_CTINFO_ACT, &sel, sizeof(sel));
|
|
+ addattr16(n, MAX_MSG, TCA_CTINFO_ZONE, zone);
|
|
+
|
|
+ if (dscpmask)
|
|
+ addattr32(n, MAX_MSG,
|
|
+ TCA_CTINFO_PARMS_DSCP_MASK, dscpmask);
|
|
+
|
|
+ if (dscpstatemask)
|
|
+ addattr32(n, MAX_MSG,
|
|
+ TCA_CTINFO_PARMS_DSCP_STATEMASK, dscpstatemask);
|
|
+
|
|
+ if (cpmarkmask)
|
|
+ addattr32(n, MAX_MSG,
|
|
+ TCA_CTINFO_PARMS_CPMARK_MASK, cpmarkmask);
|
|
+
|
|
+ addattr_nest_end(n, tail);
|
|
+
|
|
+ *argc_p = argc;
|
|
+ *argv_p = argv;
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void print_ctinfo_stats(FILE *f, struct rtattr *tb[TCA_CTINFO_MAX + 1])
|
|
+{
|
|
+ struct tcf_t *tm;
|
|
+
|
|
+ if (tb[TCA_CTINFO_TM]) {
|
|
+ tm = RTA_DATA(tb[TCA_CTINFO_TM]);
|
|
+
|
|
+ print_tm(f, tm);
|
|
+ }
|
|
+
|
|
+ if (tb[TCA_CTINFO_STATS_DSCP_SET])
|
|
+ print_lluint(PRINT_ANY, "dscpset", " DSCP set %llu",
|
|
+ rta_getattr_u64(tb[TCA_CTINFO_STATS_DSCP_SET]));
|
|
+ if (tb[TCA_CTINFO_STATS_DSCP_ERROR])
|
|
+ print_lluint(PRINT_ANY, "dscperror", " error %llu",
|
|
+ rta_getattr_u64(tb[TCA_CTINFO_STATS_DSCP_ERROR]));
|
|
+
|
|
+ if (tb[TCA_CTINFO_STATS_CPMARK_SET])
|
|
+ print_lluint(PRINT_ANY, "cpmarkset", " CPMARK set %llu",
|
|
+ rta_getattr_u64(tb[TCA_CTINFO_STATS_CPMARK_SET]));
|
|
+}
|
|
+
|
|
+static int print_ctinfo(struct action_util *au, FILE *f, struct rtattr *arg)
|
|
+{
|
|
+ unsigned int cpmarkmask = ~0, dscpmask = 0, dscpstatemask = 0;
|
|
+ struct rtattr *tb[TCA_CTINFO_MAX + 1];
|
|
+ unsigned short zone = 0;
|
|
+ struct tc_ctinfo *ci;
|
|
+
|
|
+ if (arg == NULL)
|
|
+ return -1;
|
|
+
|
|
+ parse_rtattr_nested(tb, TCA_CTINFO_MAX, arg);
|
|
+ if (!tb[TCA_CTINFO_ACT]) {
|
|
+ print_string(PRINT_FP, NULL, "%s",
|
|
+ "[NULL ctinfo action parameters]");
|
|
+ return -1;
|
|
+ }
|
|
+
|
|
+ ci = RTA_DATA(tb[TCA_CTINFO_ACT]);
|
|
+
|
|
+ if (tb[TCA_CTINFO_PARMS_DSCP_MASK]) {
|
|
+ if (RTA_PAYLOAD(tb[TCA_CTINFO_PARMS_DSCP_MASK]) >=
|
|
+ sizeof(__u32))
|
|
+ dscpmask = rta_getattr_u32(
|
|
+ tb[TCA_CTINFO_PARMS_DSCP_MASK]);
|
|
+ else
|
|
+ print_string(PRINT_FP, NULL, "%s",
|
|
+ "[invalid dscp mask parameter]");
|
|
+ }
|
|
+
|
|
+ if (tb[TCA_CTINFO_PARMS_DSCP_STATEMASK]) {
|
|
+ if (RTA_PAYLOAD(tb[TCA_CTINFO_PARMS_DSCP_STATEMASK]) >=
|
|
+ sizeof(__u32))
|
|
+ dscpstatemask = rta_getattr_u32(
|
|
+ tb[TCA_CTINFO_PARMS_DSCP_STATEMASK]);
|
|
+ else
|
|
+ print_string(PRINT_FP, NULL, "%s",
|
|
+ "[invalid dscp statemask parameter]");
|
|
+ }
|
|
+
|
|
+ if (tb[TCA_CTINFO_PARMS_CPMARK_MASK]) {
|
|
+ if (RTA_PAYLOAD(tb[TCA_CTINFO_PARMS_CPMARK_MASK]) >=
|
|
+ sizeof(__u32))
|
|
+ cpmarkmask = rta_getattr_u32(
|
|
+ tb[TCA_CTINFO_PARMS_CPMARK_MASK]);
|
|
+ else
|
|
+ print_string(PRINT_FP, NULL, "%s",
|
|
+ "[invalid cpmark mask parameter]");
|
|
+ }
|
|
+
|
|
+ if (tb[TCA_CTINFO_ZONE] && RTA_PAYLOAD(tb[TCA_CTINFO_ZONE]) >=
|
|
+ sizeof(__u16))
|
|
+ zone = rta_getattr_u16(tb[TCA_CTINFO_ZONE]);
|
|
+
|
|
+ print_string(PRINT_ANY, "kind", "%s ", "ctinfo");
|
|
+ print_hu(PRINT_ANY, "zone", "zone %u", zone);
|
|
+ print_action_control(f, " ", ci->action, "");
|
|
+
|
|
+ print_string(PRINT_FP, NULL, "%s", _SL_);
|
|
+ print_uint(PRINT_ANY, "index", "\t index %u", ci->index);
|
|
+ print_int(PRINT_ANY, "ref", " ref %d", ci->refcnt);
|
|
+ print_int(PRINT_ANY, "bind", " bind %d", ci->bindcnt);
|
|
+
|
|
+ if (tb[TCA_CTINFO_PARMS_DSCP_MASK]) {
|
|
+ print_0xhex(PRINT_ANY, "dscpmask", " dscp %#010llx", dscpmask);
|
|
+ print_0xhex(PRINT_ANY, "dscpstatemask", " %#010llx",
|
|
+ dscpstatemask);
|
|
+ }
|
|
+
|
|
+ if (tb[TCA_CTINFO_PARMS_CPMARK_MASK])
|
|
+ print_0xhex(PRINT_ANY, "cpmark", " cpmark %#010llx",
|
|
+ cpmarkmask);
|
|
+
|
|
+ if (show_stats)
|
|
+ print_ctinfo_stats(f, tb);
|
|
+
|
|
+ print_string(PRINT_FP, NULL, "%s", _SL_);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+struct action_util ctinfo_action_util = {
|
|
+ .id = "ctinfo",
|
|
+ .parse_aopt = parse_ctinfo,
|
|
+ .print_aopt = print_ctinfo,
|
|
+};
|
|
--
|
|
2.20.1 (Apple Git-117)
|
|
|