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61 lines
2.3 KiB
Diff
61 lines
2.3 KiB
Diff
From f14345422747a495a52f9237a43b8be189f21912 Mon Sep 17 00:00:00 2001
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From: Eneas U de Queiroz <cote2004-github@yahoo.com>
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Date: Mon, 5 Nov 2018 15:54:17 -0200
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Subject: eng_devcrypto: save ioctl if EVP_MD_..FLAG_ONESHOT
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Since each ioctl causes a context switch, slowing things down, if
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EVP_MD_CTX_FLAG_ONESHOT is set, then:
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- call the ioctl in digest_update, saving the result; and
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- just copy the result in digest_final, instead of using another ioctl.
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Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
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Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
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Reviewed-by: Richard Levitte <levitte@openssl.org>
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(Merged from https://github.com/openssl/openssl/pull/7585)
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diff --git a/crypto/engine/eng_devcrypto.c b/crypto/engine/eng_devcrypto.c
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index a727c6f646..a2c9a966f7 100644
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--- a/crypto/engine/eng_devcrypto.c
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+++ b/crypto/engine/eng_devcrypto.c
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@@ -461,6 +461,7 @@ struct digest_ctx {
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struct session_op sess;
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/* This signals that the init function was called, not that it succeeded. */
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int init_called;
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+ unsigned char digest_res[HASH_MAX_LEN];
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};
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static const struct digest_data_st {
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@@ -564,12 +565,15 @@ static int digest_update(EVP_MD_CTX *ctx, const void *data, size_t count)
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if (digest_ctx == NULL)
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return 0;
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- if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) < 0) {
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- SYSerr(SYS_F_IOCTL, errno);
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- return 0;
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+ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
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+ if (digest_op(digest_ctx, data, count, digest_ctx->digest_res, 0) >= 0)
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+ return 1;
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+ } else if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) >= 0) {
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+ return 1;
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}
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- return 1;
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+ SYSerr(SYS_F_IOCTL, errno);
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+ return 0;
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}
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static int digest_final(EVP_MD_CTX *ctx, unsigned char *md)
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@@ -579,7 +583,10 @@ static int digest_final(EVP_MD_CTX *ctx, unsigned char *md)
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if (md == NULL || digest_ctx == NULL)
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return 0;
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- if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) {
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+
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+ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
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+ memcpy(md, digest_ctx->digest_res, EVP_MD_CTX_size(ctx));
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+ } else if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) {
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SYSerr(SYS_F_IOCTL, errno);
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return 0;
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}
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