mirror of
https://github.com/openssl/openssl.git
synced 2024-12-09 05:51:54 +08:00
f6c95e46c0
Add a "where did this EVP_{CIPHER,MD} come from" flag: global, via fetch,
or via EVP_{CIPHER,MD}_meth_new. Update EVP_{CIPHER,MD}_free to handle all
three origins. The flag is deliberately right before some function pointers,
so that compile-time failures (int/pointer) will occur, as opposed to
taking a bit in the existing "flags" field. The "global variable" flag
is non-zero, so the default case of using OPENSSL_zalloc (for provider
ciphers), will do the right thing. Ref-counting is a no-op for
Make up_ref no-op for global MD and CIPHER objects
Deprecate EVP_MD_CTX_md(). Added EVP_MD_CTX_get0_md() (same semantics as
the deprecated function) and EVP_MD_CTX_get1_md(). Likewise, deprecate
EVP_CIPHER_CTX_cipher() in favor of EVP_CIPHER_CTX_get0_cipher(), and add
EVP_CIPHER_CTX_get1_CIPHER().
Refactor EVP_MD_free() and EVP_MD_meth_free() to call new common
evp_md_free_int() function.
Refactor EVP_CIPHER_free() and EVP_CIPHER_meth_free() to call new common
evp_cipher_free_int() function.
Also change some flags tests to explicit test == or != zero. E.g.,
if (flags & x) --> if ((flags & x) != 0)
if (!(flags & x)) --> if ((flags & x) == 0)
Only done for those lines where "get0_cipher" calls were made.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14193)
51 lines
942 B
C
51 lines
942 B
C
/*
|
|
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include "internal/cryptlib.h"
|
|
#include <openssl/evp.h>
|
|
#include <openssl/objects.h>
|
|
#include <openssl/x509.h>
|
|
#include "crypto/evp.h"
|
|
|
|
static int init(EVP_MD_CTX *ctx)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int final(EVP_MD_CTX *ctx, unsigned char *md)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static const EVP_MD null_md = {
|
|
NID_undef,
|
|
NID_undef,
|
|
0,
|
|
0,
|
|
EVP_ORIG_GLOBAL,
|
|
init,
|
|
update,
|
|
final,
|
|
NULL,
|
|
NULL,
|
|
0,
|
|
sizeof(EVP_MD *),
|
|
};
|
|
|
|
const EVP_MD *EVP_md_null(void)
|
|
{
|
|
return &null_md;
|
|
}
|