archive_hmac_private.h revision 358090 
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 */
41int __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
53typedef	CCHmacContext archive_hmac_sha1_ctx;
54
55#elif defined(_WIN32) && !defined(__CYGWIN__) && defined(HAVE_BCRYPT_H)
56#include <bcrypt.h>
57
58typedef 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
69typedef 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
74typedef	struct hmac_sha1_ctx archive_hmac_sha1_ctx;
75
76#elif defined(HAVE_LIBCRYPTO)
77#include "archive_openssl_hmac_private.h"
78
79typedef	HMAC_CTX* archive_hmac_sha1_ctx;
80
81#else
82
83typedef int archive_hmac_sha1_ctx;
84
85#endif
86
87
88/* HMAC */
89#define archive_hmac_sha1_init(ctx, key, key_len)\
90	__archive_hmac.__hmac_sha1_init(ctx, key, key_len)
91#define archive_hmac_sha1_update(ctx, data, data_len)\
92	__archive_hmac.__hmac_sha1_update(ctx, data, data_len)
93#define archive_hmac_sha1_final(ctx, out, out_len)\
94  	__archive_hmac.__hmac_sha1_final(ctx, out, out_len)
95#define archive_hmac_sha1_cleanup(ctx)\
96	__archive_hmac.__hmac_sha1_cleanup(ctx)
97
98
99struct archive_hmac {
100	/* HMAC */
101	int (*__hmac_sha1_init)(archive_hmac_sha1_ctx *, const uint8_t *,
102		size_t);
103	void (*__hmac_sha1_update)(archive_hmac_sha1_ctx *, const uint8_t *,
104		size_t);
105	void (*__hmac_sha1_final)(archive_hmac_sha1_ctx *, uint8_t *, size_t *);
106	void (*__hmac_sha1_cleanup)(archive_hmac_sha1_ctx *);
107};
108
109extern const struct archive_hmac __archive_hmac;
110#endif /* ARCHIVE_HMAC_PRIVATE_H_INCLUDED */
111