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      1 /*-
      2 * Copyright (c) 2014 Michihiro NAKAJIMA
      3 * All rights reserved.
      4 *
      5 * Redistribution and use in source and binary forms, with or without
      6 * modification, are permitted provided that the following conditions
      7 * are met:
      8 * 1. Redistributions of source code must retain the above copyright
      9 *    notice, this list of conditions and the following disclaimer.
     10 * 2. Redistributions in binary form must reproduce the above copyright
     11 *    notice, this list of conditions and the following disclaimer in the
     12 *    documentation and/or other materials provided with the distribution.
     13 *
     14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
     15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
     18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24 */
     25 
     26 #ifndef ARCHIVE_HMAC_PRIVATE_H_INCLUDED
     27 #define ARCHIVE_HMAC_PRIVATE_H_INCLUDED
     28 
     29 #ifndef __LIBARCHIVE_BUILD
     30 #error This header is only to be used internally to libarchive.
     31 #endif
     32 /*
     33  * On systems that do not support any recognized crypto libraries,
     34  * the archive_hmac.c file is expected to define no usable symbols.
     35  *
     36  * But some compilers and linkers choke on empty object files, so
     37  * define a public symbol that will always exist.  This could
     38  * be removed someday if this file gains another always-present
     39  * symbol definition.
     40  */
     41 int __libarchive_hmac_build_hack(void);
     42 
     43 #ifdef __APPLE__
     44 # include <AvailabilityMacros.h>
     45 # if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
     46 #  define ARCHIVE_HMAC_USE_Apple_CommonCrypto
     47 # endif
     48 #endif
     49 
     50 #ifdef ARCHIVE_HMAC_USE_Apple_CommonCrypto
     51 #include <CommonCrypto/CommonHMAC.h>
     52 
     53 typedef	CCHmacContext archive_hmac_sha1_ctx;
     54 
     55 #elif defined(_WIN32) && !defined(__CYGWIN__) && defined(HAVE_BCRYPT_H) && _WIN32_WINNT >= _WIN32_WINNT_VISTA
     56 #include <bcrypt.h>
     57 
     58 typedef struct {
     59 	BCRYPT_ALG_HANDLE	hAlg;
     60 	BCRYPT_HASH_HANDLE	hHash;
     61 	DWORD				hash_len;
     62 	PBYTE				hash;
     63 
     64 } archive_hmac_sha1_ctx;
     65 
     66 #elif defined(HAVE_LIBMBEDCRYPTO) && defined(HAVE_MBEDTLS_MD_H)
     67 #include <mbedtls/md.h>
     68 
     69 typedef mbedtls_md_context_t archive_hmac_sha1_ctx;
     70 
     71 #elif defined(HAVE_LIBNETTLE) && defined(HAVE_NETTLE_HMAC_H)
     72 #include <nettle/hmac.h>
     73 
     74 typedef	struct hmac_sha1_ctx archive_hmac_sha1_ctx;
     75 
     76 #elif defined(HAVE_LIBCRYPTO)
     77 #include <openssl/opensslv.h>
     78 #include <openssl/hmac.h>
     79 #if OPENSSL_VERSION_NUMBER >= 0x30000000L
     80 #include <openssl/params.h>
     81 
     82 typedef EVP_MAC_CTX *archive_hmac_sha1_ctx;
     83 
     84 #else
     85 #include "archive_openssl_hmac_private.h"
     86 
     87 typedef	HMAC_CTX* archive_hmac_sha1_ctx;
     88 #endif
     89 
     90 #else
     91 
     92 typedef int archive_hmac_sha1_ctx;
     93 
     94 #endif
     95 
     96 
     97 /* HMAC */
     98 #define archive_hmac_sha1_init(ctx, key, key_len)\
     99 	__archive_hmac.__hmac_sha1_init(ctx, key, key_len)
    100 #define archive_hmac_sha1_update(ctx, data, data_len)\
    101 	__archive_hmac.__hmac_sha1_update(ctx, data, data_len)
    102 #define archive_hmac_sha1_final(ctx, out, out_len)\
    103   	__archive_hmac.__hmac_sha1_final(ctx, out, out_len)
    104 #define archive_hmac_sha1_cleanup(ctx)\
    105 	__archive_hmac.__hmac_sha1_cleanup(ctx)
    106 
    107 
    108 struct archive_hmac {
    109 	/* HMAC */
    110 	int (*__hmac_sha1_init)(archive_hmac_sha1_ctx *, const uint8_t *,
    111 		size_t);
    112 	void (*__hmac_sha1_update)(archive_hmac_sha1_ctx *, const uint8_t *,
    113 		size_t);
    114 	void (*__hmac_sha1_final)(archive_hmac_sha1_ctx *, uint8_t *, size_t *);
    115 	void (*__hmac_sha1_cleanup)(archive_hmac_sha1_ctx *);
    116 };
    117 
    118 extern const struct archive_hmac __archive_hmac;
    119 #endif /* !ARCHIVE_HMAC_PRIVATE_H_INCLUDED */
    120