CMake/Utilities/cmlibarchive/libarchive/archive_hmac.c

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/*-
* Copyright (c) 2014 Michihiro NAKAJIMA
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "archive_platform.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "archive.h"
#include "archive_hmac_private.h"
/*
* On systems that do not support any recognized crypto libraries,
* the archive_hmac.c file is expected to define no usable symbols.
*
* But some compilers and linkers choke on empty object files, so
* define a public symbol that will always exist. This could
* be removed someday if this file gains another always-present
* symbol definition.
*/
int __libarchive_hmac_build_hack(void) {
return 0;
}
#ifdef ARCHIVE_HMAC_USE_Apple_CommonCrypto
static int
__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
{
CCHmacInit(ctx, kCCHmacAlgSHA1, key, key_len);
return 0;
}
static void
__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
size_t data_len)
{
CCHmacUpdate(ctx, data, data_len);
}
static void
__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
{
CCHmacFinal(ctx, out);
*out_len = 20;
}
static void
__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
{
memset(ctx, 0, sizeof(*ctx));
}
#elif defined(_WIN32) && !defined(__CYGWIN__) && defined(HAVE_BCRYPT_H)
static int
__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
{
BCRYPT_ALG_HANDLE hAlg;
BCRYPT_HASH_HANDLE hHash;
DWORD hash_len;
PBYTE hash;
ULONG result;
NTSTATUS status;
ctx->hAlg = NULL;
status = BCryptOpenAlgorithmProvider(&hAlg, BCRYPT_SHA1_ALGORITHM,
MS_PRIMITIVE_PROVIDER, BCRYPT_ALG_HANDLE_HMAC_FLAG);
if (!BCRYPT_SUCCESS(status))
return -1;
status = BCryptGetProperty(hAlg, BCRYPT_HASH_LENGTH, (PUCHAR)&hash_len,
sizeof(hash_len), &result, 0);
if (!BCRYPT_SUCCESS(status)) {
BCryptCloseAlgorithmProvider(hAlg, 0);
return -1;
}
hash = (PBYTE)HeapAlloc(GetProcessHeap(), 0, hash_len);
if (hash == NULL) {
BCryptCloseAlgorithmProvider(hAlg, 0);
return -1;
}
status = BCryptCreateHash(hAlg, &hHash, NULL, 0,
(PUCHAR)key, (ULONG)key_len, BCRYPT_HASH_REUSABLE_FLAG);
if (!BCRYPT_SUCCESS(status)) {
BCryptCloseAlgorithmProvider(hAlg, 0);
HeapFree(GetProcessHeap(), 0, hash);
return -1;
}
ctx->hAlg = hAlg;
ctx->hHash = hHash;
ctx->hash_len = hash_len;
ctx->hash = hash;
return 0;
}
static void
__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
size_t data_len)
{
BCryptHashData(ctx->hHash, (PUCHAR)(uintptr_t)data, (ULONG)data_len, 0);
}
static void
__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
{
BCryptFinishHash(ctx->hHash, ctx->hash, ctx->hash_len, 0);
if (ctx->hash_len == *out_len)
memcpy(out, ctx->hash, *out_len);
}
static void
__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
{
if (ctx->hAlg != NULL) {
BCryptCloseAlgorithmProvider(ctx->hAlg, 0);
HeapFree(GetProcessHeap(), 0, ctx->hash);
ctx->hAlg = NULL;
}
}
#elif defined(HAVE_LIBNETTLE) && defined(HAVE_NETTLE_HMAC_H)
static int
__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
{
hmac_sha1_set_key(ctx, key_len, key);
return 0;
}
static void
__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
size_t data_len)
{
hmac_sha1_update(ctx, data_len, data);
}
static void
__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
{
hmac_sha1_digest(ctx, (unsigned)*out_len, out);
}
static void
__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
{
memset(ctx, 0, sizeof(*ctx));
}
#elif defined(HAVE_LIBCRYPTO)
static int
__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
{
*ctx = HMAC_CTX_new();
if (*ctx == NULL)
return -1;
HMAC_Init_ex(*ctx, key, key_len, EVP_sha1(), NULL);
return 0;
}
static void
__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
size_t data_len)
{
HMAC_Update(*ctx, data, data_len);
}
static void
__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
{
unsigned int len = (unsigned int)*out_len;
HMAC_Final(*ctx, out, &len);
*out_len = len;
}
static void
__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
{
HMAC_CTX_free(*ctx);
*ctx = NULL;
}
#else
/* Stub */
static int
__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
{
(void)ctx;/* UNUSED */
(void)key;/* UNUSED */
(void)key_len;/* UNUSED */
return -1;
}
static void
__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
size_t data_len)
{
(void)ctx;/* UNUSED */
(void)data;/* UNUSED */
(void)data_len;/* UNUSED */
}
static void
__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
{
(void)ctx;/* UNUSED */
(void)out;/* UNUSED */
(void)out_len;/* UNUSED */
}
static void
__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
{
(void)ctx;/* UNUSED */
}
#endif
const struct archive_hmac __archive_hmac = {
&__hmac_sha1_init,
&__hmac_sha1_update,
&__hmac_sha1_final,
&__hmac_sha1_cleanup,
};