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/* Copyright © 2007 Carl Worth
* Copyright © 2009 Jeremy Huddleston, Julien Cristau, and Matthieu Herrb
* Copyright © 2009-2010 Mikhail Gusarov
* Copyright © 2012 Yaakov Selkowitz and Keith Packard
* Copyright © 2014 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "mesa-sha1.h"
#ifdef HAVE_SHA1
#if defined(HAVE_SHA1_IN_LIBMD) /* Use libmd for SHA1 */ \
|| defined(HAVE_SHA1_IN_LIBC) /* Use libc for SHA1 */
#include <sha1.h>
struct mesa_sha1 *
_mesa_sha1_init(void)
{
SHA1_CTX *ctx = malloc(sizeof(*ctx));
if (!ctx)
return NULL;
SHA1Init(ctx);
return (struct mesa_sha1 *) ctx;
}
int
_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
{
SHA1_CTX *sha1_ctx = (SHA1_CTX *) ctx;
SHA1Update(sha1_ctx, data, size);
return 1;
}
int
_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
{
SHA1_CTX *sha1_ctx = (SHA1_CTX *) ctx;
SHA1Final(result, sha1_ctx);
free(sha1_ctx);
return 1;
}
#elif defined(HAVE_SHA1_IN_COMMONCRYPTO) /* Use CommonCrypto for SHA1 */
#include <CommonCrypto/CommonDigest.h>
struct mesa_sha1 *
_mesa_sha1_init(void)
{
CC_SHA1_CTX *ctx = malloc(sizeof(*ctx));
if (!ctx)
return NULL;
CC_SHA1_Init(ctx);
return (struct mesa_sha1 *) ctx;
}
int
_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
{
CC_SHA1_CTX *sha1_ctx = (CC_SHA1_CTX *) ctx;
CC_SHA1_Update(sha1_ctx, data, size);
return 1;
}
int
_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
{
CC_SHA1_CTX *sha1_ctx = (CC_SHA1_CTX *) ctx;
CC_SHA1_Final(result, sha1_ctx);
free(sha1_ctx);
return 1;
}
#elif defined(HAVE_SHA1_IN_CRYPTOAPI) /* Use CryptoAPI for SHA1 */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wincrypt.h>
static HCRYPTPROV hProv;
struct mesa_sha1 *
_mesa_sha1_init(void)
{
HCRYPTHASH *ctx = malloc(sizeof(*ctx));
if (!ctx)
return NULL;
CryptAcquireContext(&hProv, NULL, MS_DEF_PROV, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT);
CryptCreateHash(hProv, CALG_SHA1, 0, 0, ctx);
return (struct mesa_sha1 *) ctx;
}
int
_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
{
HCRYPTHASH *hHash = (HCRYPTHASH *) ctx;
CryptHashData(*hHash, data, size, 0);
return 1;
}
int
_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
{
HCRYPTHASH *hHash = (HCRYPTHASH *) ctx;
DWORD len = 20;
CryptGetHashParam(*hHash, HP_HASHVAL, result, &len, 0);
CryptDestroyHash(*hHash);
CryptReleaseContext(hProv, 0);
free(ctx);
return 1;
}
#elif defined(HAVE_SHA1_IN_LIBNETTLE) /* Use libnettle for SHA1 */
#include <nettle/sha.h>
struct mesa_sha1 *
_mesa_sha1_init(void)
{
struct sha1_ctx *ctx = malloc(sizeof(*ctx));
if (!ctx)
return NULL;
sha1_init(ctx);
return (struct mesa_sha1 *) ctx;
}
int
_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
{
sha1_update((struct sha1_ctx *) ctx, size, data);
return 1;
}
int
_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
{
sha1_digest((struct sha1_ctx *) ctx, 20, result);
free(ctx);
return 1;
}
#elif defined(HAVE_SHA1_IN_LIBGCRYPT) /* Use libgcrypt for SHA1 */
#include <gcrypt.h>
#include "c11/threads.h"
static void _mesa_libgcrypt_init(void)
{
if (!gcry_check_version(NULL))
return NULL;
gcry_control(GCRYCTL_DISABLE_SECMEM, 0);
gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
}
struct mesa_sha1 *
_mesa_sha1_init(void)
{
static once_flag flag = ONCE_FLAG_INIT;
gcry_md_hd_t h;
gcry_error_t err;
call_once(&flag, _mesa_libgcrypt_init);
err = gcry_md_open(&h, GCRY_MD_SHA1, 0);
if (err)
return NULL;
return (struct mesa_sha1 *) h;
}
int
_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
{
gcry_md_hd_t h = (gcry_md_hd_t) ctx;
gcry_md_write(h, data, size);
return 1;
}
int
_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
{
gcry_md_hd_t h = (gcry_md_hd_t) ctx;
memcpy(result, gcry_md_read(h, GCRY_MD_SHA1), 20);
gcry_md_close(h);
return 1;
}
#elif defined(HAVE_SHA1_IN_LIBSHA1) /* Use libsha1 */
#include <libsha1.h>
struct mesa_sha1 *
_mesa_sha1_init(void)
{
sha1_ctx *ctx = malloc(sizeof(*ctx));
if (!ctx)
return NULL;
sha1_begin(ctx);
return (struct mesa_sha1 *) ctx;
}
int
_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
{
sha1_hash(data, size, (sha1_ctx *) ctx);
return 1;
}
int
_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
{
sha1_end(result, (sha1_ctx *) ctx);
free(ctx);
return 1;
}
#else /* Use OpenSSL's libcrypto */
#include <stddef.h> /* buggy openssl/sha.h wants size_t */
#include <openssl/sha.h>
struct mesa_sha1 *
_mesa_sha1_init(void)
{
int ret;
SHA_CTX *ctx = malloc(sizeof(*ctx));
if (!ctx)
return NULL;
ret = SHA1_Init(ctx);
if (!ret) {
free(ctx);
return NULL;
}
return (struct mesa_sha1 *) ctx;
}
int
_mesa_sha1_update(struct mesa_sha1 *ctx, const void *data, int size)
{
int ret;
SHA_CTX *sha_ctx = (SHA_CTX *) ctx;
ret = SHA1_Update(sha_ctx, data, size);
if (!ret)
free(sha_ctx);
return ret;
}
int
_mesa_sha1_final(struct mesa_sha1 *ctx, unsigned char result[20])
{
int ret;
SHA_CTX *sha_ctx = (SHA_CTX *) ctx;
ret = SHA1_Final(result, (SHA_CTX *) sha_ctx);
free(sha_ctx);
return ret;
}
#endif
void
_mesa_sha1_compute(const void *data, size_t size, unsigned char result[20])
{
struct mesa_sha1 *ctx;
ctx = _mesa_sha1_init();
_mesa_sha1_update(ctx, data, size);
_mesa_sha1_final(ctx, result);
}
char *
_mesa_sha1_format(char *buf, const unsigned char *sha1)
{
static const char hex_digits[] = "0123456789abcdef";
int i;
for (i = 0; i < 40; i += 2) {
buf[i] = hex_digits[sha1[i >> 1] >> 4];
buf[i + 1] = hex_digits[sha1[i >> 1] & 0x0f];
}
buf[i] = '\0';
return buf;
}
#endif
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