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Remove unneeded EVP_MD_CTX_reset custom cleanup

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The EVP_MD_CTX_reset function is not used anywhere outside of the compat
layer and is not needed there. The only usage in the compat layer is for
cleanup, but EVP_MD_CTX_cleanup can be used for that which is availble
at least since OpenSSL 0.9.8.

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
Dirkjan Bussink
2020-12-12 17:41:42 +01:00
committed by Jakub Jelen
parent b6bf5bfd15
commit 41c08986ae
2 changed files with 1 additions and 41 deletions
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41
src/libcrypto-compat.c
View File

@@ -12,10 +12,6 @@
#include <string.h>
#include "libcrypto-compat.h"
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
{
/* If the fields n and e in r are NULL, the corresponding input
@@ -234,44 +230,9 @@ EVP_MD_CTX *EVP_MD_CTX_new(void)
return ctx;
}
static void OPENSSL_clear_free(void *str, size_t num)
{
if (str == NULL)
return;
if (num)
OPENSSL_cleanse(str, num);
OPENSSL_free(str);
}
/* This call frees resources associated with the context */
int EVP_MD_CTX_reset(EVP_MD_CTX *ctx)
{
if (ctx == NULL)
return 1;
/*
* Don't assume ctx->md_data was cleaned in EVP_Digest_Final, because
* sometimes only copies of the context are ever finalised.
*/
if (ctx->digest && ctx->digest->cleanup
&& !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_CLEANED))
ctx->digest->cleanup(ctx);
if (ctx->digest && ctx->digest->ctx_size && ctx->md_data
&& !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) {
OPENSSL_clear_free(ctx->md_data, ctx->digest->ctx_size);
}
EVP_PKEY_CTX_free(ctx->pctx);
#ifndef OPENSSL_NO_ENGINE
ENGINE_finish(ctx->engine);
#endif
OPENSSL_cleanse(ctx, sizeof(*ctx));
return 1;
}
void EVP_MD_CTX_free(EVP_MD_CTX *ctx)
{
EVP_MD_CTX_reset(ctx);
EVP_MD_CTX_cleanup(ctx);
OPENSSL_free(ctx);
}

1
src/libcrypto-compat.h
View File

@@ -30,7 +30,6 @@ int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);
void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s);
int EVP_MD_CTX_reset(EVP_MD_CTX *ctx);
EVP_MD_CTX *EVP_MD_CTX_new(void);
void EVP_MD_CTX_free(EVP_MD_CTX *ctx);