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306 lines
7.3 KiB
306 lines
7.3 KiB
/*-
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* Copyright (c) 2014 Michihiro NAKAJIMA
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "archive_platform.h"
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include "archive.h"
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#include "archive_hmac_private.h"
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/*
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* On systems that do not support any recognized crypto libraries,
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* the archive_hmac.c file is expected to define no usable symbols.
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*
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* But some compilers and linkers choke on empty object files, so
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* define a public symbol that will always exist. This could
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* be removed someday if this file gains another always-present
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* symbol definition.
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*/
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int __libarchive_hmac_build_hack(void) {
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return 0;
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}
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#ifdef ARCHIVE_HMAC_USE_Apple_CommonCrypto
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static int
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__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
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{
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CCHmacInit(ctx, kCCHmacAlgSHA1, key, key_len);
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return 0;
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}
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static void
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__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
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size_t data_len)
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{
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CCHmacUpdate(ctx, data, data_len);
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}
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static void
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__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
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{
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CCHmacFinal(ctx, out);
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*out_len = 20;
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}
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static void
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__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
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{
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memset(ctx, 0, sizeof(*ctx));
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}
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#elif defined(_WIN32) && !defined(__CYGWIN__) && defined(HAVE_BCRYPT_H)
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#ifndef BCRYPT_HASH_REUSABLE_FLAG
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# define BCRYPT_HASH_REUSABLE_FLAG 0x00000020
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#endif
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static int
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__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
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{
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#ifdef __GNUC__
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#pragma GCC diagnostic ignored "-Wcast-qual"
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#endif
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BCRYPT_ALG_HANDLE hAlg;
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BCRYPT_HASH_HANDLE hHash;
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DWORD hash_len;
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PBYTE hash;
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ULONG result;
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NTSTATUS status;
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ctx->hAlg = NULL;
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status = BCryptOpenAlgorithmProvider(&hAlg, BCRYPT_SHA1_ALGORITHM,
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MS_PRIMITIVE_PROVIDER, BCRYPT_ALG_HANDLE_HMAC_FLAG);
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if (!BCRYPT_SUCCESS(status))
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return -1;
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status = BCryptGetProperty(hAlg, BCRYPT_HASH_LENGTH, (PUCHAR)&hash_len,
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sizeof(hash_len), &result, 0);
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if (!BCRYPT_SUCCESS(status)) {
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BCryptCloseAlgorithmProvider(hAlg, 0);
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return -1;
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}
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hash = (PBYTE)HeapAlloc(GetProcessHeap(), 0, hash_len);
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if (hash == NULL) {
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BCryptCloseAlgorithmProvider(hAlg, 0);
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return -1;
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}
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status = BCryptCreateHash(hAlg, &hHash, NULL, 0,
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(PUCHAR)key, (ULONG)key_len, BCRYPT_HASH_REUSABLE_FLAG);
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if (!BCRYPT_SUCCESS(status)) {
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BCryptCloseAlgorithmProvider(hAlg, 0);
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HeapFree(GetProcessHeap(), 0, hash);
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return -1;
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}
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ctx->hAlg = hAlg;
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ctx->hHash = hHash;
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ctx->hash_len = hash_len;
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ctx->hash = hash;
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return 0;
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}
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static void
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__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
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size_t data_len)
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{
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BCryptHashData(ctx->hHash, (PUCHAR)(uintptr_t)data, (ULONG)data_len, 0);
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}
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static void
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__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
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{
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BCryptFinishHash(ctx->hHash, ctx->hash, ctx->hash_len, 0);
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if (ctx->hash_len == *out_len)
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memcpy(out, ctx->hash, *out_len);
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}
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static void
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__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
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{
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if (ctx->hAlg != NULL) {
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BCryptCloseAlgorithmProvider(ctx->hAlg, 0);
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HeapFree(GetProcessHeap(), 0, ctx->hash);
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ctx->hAlg = NULL;
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}
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}
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#elif defined(HAVE_LIBMBEDCRYPTO) && defined(HAVE_MBEDTLS_MD_H)
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static int
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__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
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{
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const mbedtls_md_info_t *info;
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int ret;
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mbedtls_md_init(ctx);
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info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA1);
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if (info == NULL) {
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mbedtls_md_free(ctx);
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return (-1);
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}
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ret = mbedtls_md_setup(ctx, info, 1);
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if (ret != 0) {
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mbedtls_md_free(ctx);
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return (-1);
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}
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ret = mbedtls_md_hmac_starts(ctx, key, key_len);
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if (ret != 0) {
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mbedtls_md_free(ctx);
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return (-1);
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}
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return 0;
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}
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static void
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__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
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size_t data_len)
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{
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mbedtls_md_hmac_update(ctx, data, data_len);
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}
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static void __hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
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{
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(void)out_len; /* UNUSED */
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mbedtls_md_hmac_finish(ctx, out);
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}
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static void __hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
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{
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mbedtls_md_free(ctx);
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memset(ctx, 0, sizeof(*ctx));
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}
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#elif defined(HAVE_LIBNETTLE) && defined(HAVE_NETTLE_HMAC_H)
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static int
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__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
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{
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hmac_sha1_set_key(ctx, key_len, key);
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return 0;
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}
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static void
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__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
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size_t data_len)
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{
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hmac_sha1_update(ctx, data_len, data);
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}
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static void
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__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
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{
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hmac_sha1_digest(ctx, (unsigned)*out_len, out);
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}
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static void
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__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
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{
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memset(ctx, 0, sizeof(*ctx));
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}
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#elif defined(HAVE_LIBCRYPTO)
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static int
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__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
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{
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*ctx = HMAC_CTX_new();
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if (*ctx == NULL)
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return -1;
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HMAC_Init_ex(*ctx, key, key_len, EVP_sha1(), NULL);
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return 0;
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}
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static void
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__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
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size_t data_len)
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{
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HMAC_Update(*ctx, data, data_len);
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}
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static void
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__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
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{
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unsigned int len = (unsigned int)*out_len;
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HMAC_Final(*ctx, out, &len);
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*out_len = len;
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}
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static void
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__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
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{
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HMAC_CTX_free(*ctx);
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*ctx = NULL;
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}
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#else
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/* Stub */
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static int
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__hmac_sha1_init(archive_hmac_sha1_ctx *ctx, const uint8_t *key, size_t key_len)
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{
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(void)ctx;/* UNUSED */
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(void)key;/* UNUSED */
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(void)key_len;/* UNUSED */
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return -1;
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}
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static void
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__hmac_sha1_update(archive_hmac_sha1_ctx *ctx, const uint8_t *data,
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size_t data_len)
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{
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(void)ctx;/* UNUSED */
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(void)data;/* UNUSED */
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(void)data_len;/* UNUSED */
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}
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static void
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__hmac_sha1_final(archive_hmac_sha1_ctx *ctx, uint8_t *out, size_t *out_len)
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{
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(void)ctx;/* UNUSED */
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(void)out;/* UNUSED */
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(void)out_len;/* UNUSED */
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}
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static void
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__hmac_sha1_cleanup(archive_hmac_sha1_ctx *ctx)
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{
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(void)ctx;/* UNUSED */
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}
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#endif
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const struct archive_hmac __archive_hmac = {
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&__hmac_sha1_init,
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&__hmac_sha1_update,
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&__hmac_sha1_final,
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&__hmac_sha1_cleanup,
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};
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