[4446] | 1 | //hash.c: |
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| 2 | |
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| 3 | /* |
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[4708] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2011 |
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[4446] | 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | * NOTE for everyone want's to change something and send patches: |
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| 25 | * read README and HACKING! There a addition information on |
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| 26 | * the license of this document you need to read before you send |
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| 27 | * any patches. |
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| 28 | * |
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| 29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 30 | * or libpulse*: |
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| 31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 32 | * and are therefore GPL. Because of this it may be illigal to use |
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| 33 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 34 | */ |
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| 35 | |
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| 36 | #include "libroar.h" |
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| 37 | |
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[4451] | 38 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 39 | #include <gcrypt.h> |
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| 40 | #endif |
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| 41 | |
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[4670] | 42 | struct roar_hash_state { |
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| 43 | struct roar_hash_cmds * cmds; |
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| 44 | void * state; |
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| 45 | }; |
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| 46 | |
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[4450] | 47 | static const struct hashes { |
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[4795] | 48 | const uint_least32_t id; |
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| 49 | const char * name; |
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| 50 | const ssize_t dlen; |
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[4450] | 51 | } _libroar_hashes[] = { |
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| 52 | /* |
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[4453] | 53 | grep '^ +HT_' doc/new-cmds | sed 's/ *#(.*)$//; s/^ +HT_//; s/ *=.*$//' | while read n; do printf " {ROAR_HT_%-12s \"%-12s -1 },\n" $n, $n\",; done |
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[4450] | 54 | */ |
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[4453] | 55 | {ROAR_HT_NONE, "NONE", -1 }, |
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| 56 | {ROAR_HT_MD5, "MD5", 16 }, |
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| 57 | {ROAR_HT_SHA1, "SHA1", 20 }, |
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| 58 | {ROAR_HT_RIPEMD160, "RIPEMD160", 20 }, |
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| 59 | {ROAR_HT_MD2, "MD2", -1 }, |
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| 60 | {ROAR_HT_TIGER, "TIGER", 24 }, |
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| 61 | {ROAR_HT_HAVAL, "HAVAL", -1 }, |
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| 62 | {ROAR_HT_SHA256, "SHA256", 32 }, |
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| 63 | {ROAR_HT_SHA384, "SHA384", 48 }, |
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| 64 | {ROAR_HT_SHA512, "SHA512", 64 }, |
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| 65 | {ROAR_HT_SHA224, "SHA224", 28 }, |
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| 66 | {ROAR_HT_MD4, "MD4", 16 }, |
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| 67 | {ROAR_HT_CRC32, "CRC32", 4 }, |
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| 68 | {ROAR_HT_RFC1510, "RFC1510", 4 }, |
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| 69 | {ROAR_HT_RFC2440, "RFC2440", 3 }, |
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| 70 | {ROAR_HT_WHIRLPOOL, "WHIRLPOOL", 64 }, |
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| 71 | {ROAR_HT_UUID, "UUID", 16 }, |
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| 72 | {ROAR_HT_GTN8, "GTN8", 1 }, |
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| 73 | {ROAR_HT_GTN16, "GTN16", 2 }, |
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| 74 | {ROAR_HT_GTN32, "GTN32", 4 }, |
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| 75 | {ROAR_HT_GTN64, "GTN64", 8 }, |
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| 76 | {ROAR_HT_CLIENTID, "CLIENTID", -1 }, |
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| 77 | {ROAR_HT_STREAMID, "STREAMID", -1 }, |
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| 78 | {ROAR_HT_SOURCEID, "SOURCEID", -1 }, |
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| 79 | {ROAR_HT_SAMPLEID, "SAMPLEID", -1 }, |
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| 80 | {ROAR_HT_MIXERID, "MIXERID", -1 }, |
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| 81 | {ROAR_HT_BRIDGEID, "BRIDGEID", -1 }, |
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| 82 | {ROAR_HT_LISTENID, "LISTENID", -1 }, |
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| 83 | {ROAR_HT_ACTIONID, "ACTIONID", -1 }, |
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| 84 | {ROAR_HT_MSGQUEUEID, "MSGQUEUEID", -1 }, |
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| 85 | {ROAR_HT_MSGBUSID, "MSGBUSID", -1 }, |
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| 86 | {ROAR_HT_GTIN8, "GTIN8", 4 }, |
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| 87 | {ROAR_HT_GTIN13, "GTIN13", 8 }, |
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| 88 | {ROAR_HT_ISBN10, "ISBN10", 8 }, |
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| 89 | {ROAR_HT_ISBN13, "ISBN13", 8 }, |
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[4795] | 90 | {ROAR_HT_ADLER32, "ADLER32", 4 }, |
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[4450] | 91 | {-1, NULL} |
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| 92 | }; |
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| 93 | |
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[4670] | 94 | static struct roar_hash_cmds _libroar_hash_cmds[] = { |
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| 95 | {ROAR_HT_TIGER, sizeof(struct roar_hash_tiger), 512, |
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| 96 | (int (*)(void *))roar_hash_tiger_init, (int (*)(void *))roar_hash_tiger_uninit, |
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| 97 | (int (*)(void *, void *, size_t *))roar_hash_tiger_get_digest, |
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| 98 | (int (*)(void *, const void *))roar_hash_tiger_proc_block, |
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| 99 | (int (*)(void *, const void *, size_t))roar_hash_tiger_proc |
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| 100 | }, |
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[4671] | 101 | {ROAR_HT_RFC2440, sizeof(uint32_t), -1, |
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| 102 | roar_hash_crc24_init, NULL, |
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| 103 | roar_hash_crc24_digest, NULL, roar_hash_crc24_proc |
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| 104 | }, |
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[4795] | 105 | {ROAR_HT_ADLER32, sizeof(uint32_t), -1, |
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| 106 | roar_hash_adler32_init, NULL, |
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| 107 | roar_hash_adler32_digest, NULL, roar_hash_adler32_proc |
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| 108 | }, |
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[4670] | 109 | {-1, -1, -1, NULL, NULL, NULL, NULL, NULL} |
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| 110 | }; |
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| 111 | |
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| 112 | static struct roar_hash_cmds * roar_ht2cmds(const int ht) { |
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| 113 | size_t i; |
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| 114 | |
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| 115 | for(i = 0; _libroar_hash_cmds[i].algo != -1; i++) |
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| 116 | if ( _libroar_hash_cmds[i].algo == ht ) |
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| 117 | return &(_libroar_hash_cmds[i]); |
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| 118 | |
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| 119 | return NULL; |
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| 120 | } |
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| 121 | |
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[4451] | 122 | static inline int roar_ht2gcrypt_tested (const int ht) { |
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[4549] | 123 | #ifdef ROAR_HAVE_LIBGCRYPT |
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[4451] | 124 | const char * name; |
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| 125 | |
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| 126 | if ( ht > 512 ) |
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| 127 | return -1; |
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| 128 | |
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| 129 | // test the algo: |
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| 130 | name = gcry_md_algo_name(ht); |
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| 131 | |
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| 132 | if ( name == NULL ) |
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| 133 | return -1; |
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| 134 | |
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| 135 | if ( *name == 0 ) |
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| 136 | return -1; |
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| 137 | |
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| 138 | return ht; |
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[4549] | 139 | #else |
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| 140 | return -1; |
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| 141 | #endif |
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[4451] | 142 | } |
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| 143 | |
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[4450] | 144 | const char * roar_ht2str (const int ht) { |
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| 145 | int i; |
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| 146 | |
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| 147 | for (i = 0; _libroar_hashes[i].id != -1; i++) |
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| 148 | if ( _libroar_hashes[i].id == ht ) |
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| 149 | return _libroar_hashes[i].name; |
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| 150 | |
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| 151 | return NULL; |
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| 152 | } |
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| 153 | |
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| 154 | int roar_str2ht (const char * ht) { |
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| 155 | int i; |
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| 156 | |
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| 157 | for (i = 0; _libroar_hashes[i].id != -1; i++) |
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| 158 | if ( !strcasecmp(_libroar_hashes[i].name, ht) ) |
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| 159 | return _libroar_hashes[i].id; |
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| 160 | |
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| 161 | return -1; |
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| 162 | } |
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| 163 | |
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[4453] | 164 | ssize_t roar_ht_digestlen (const int ht) { |
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| 165 | int i; |
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| 166 | |
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| 167 | for (i = 0; _libroar_hashes[i].id != -1; i++) |
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| 168 | if ( _libroar_hashes[i].id == ht ) |
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| 169 | return _libroar_hashes[i].dlen; |
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| 170 | |
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| 171 | return -1; |
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| 172 | } |
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| 173 | |
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| 174 | int roar_ht_is_supported(const int ht) { |
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[4454] | 175 | roar_crypto_init(); |
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| 176 | |
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[4670] | 177 | if ( roar_ht2cmds(ht) != NULL ) |
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| 178 | return 1; |
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| 179 | |
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[4453] | 180 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 181 | if ( roar_ht2gcrypt_tested(ht) == -1 ) |
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| 182 | return 0; |
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| 183 | |
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| 184 | return 1; |
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| 185 | #else |
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| 186 | return 0; |
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| 187 | #endif |
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| 188 | } |
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| 189 | |
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[4670] | 190 | struct roar_hash_state * roar_hash_new(int algo) { |
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| 191 | struct roar_hash_cmds * cmds = roar_ht2cmds(algo); |
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| 192 | struct roar_hash_state * self; |
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| 193 | |
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| 194 | if ( cmds == NULL ) |
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| 195 | return NULL; |
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| 196 | |
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| 197 | self = roar_mm_malloc(sizeof(struct roar_hash_state)); |
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| 198 | |
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| 199 | if ( self == NULL ) |
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| 200 | return NULL; |
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| 201 | |
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| 202 | memset(self, 0, sizeof(struct roar_hash_state)); |
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| 203 | |
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| 204 | self->cmds = cmds; |
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| 205 | |
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| 206 | self->state = roar_mm_malloc(cmds->statelen); |
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| 207 | |
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| 208 | if ( self->state == NULL ) { |
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| 209 | roar_mm_free(self); |
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| 210 | return NULL; |
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| 211 | } |
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| 212 | |
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| 213 | memset(self->state, 0, cmds->statelen); |
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| 214 | |
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| 215 | if ( cmds->init != NULL ) { |
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| 216 | if ( cmds->init(self->state) == -1 ) { |
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| 217 | roar_mm_free(self->state); |
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| 218 | roar_mm_free(self); |
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| 219 | return NULL; |
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| 220 | } |
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| 221 | } |
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| 222 | |
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| 223 | return self; |
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| 224 | } |
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| 225 | |
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| 226 | int roar_hash_free(struct roar_hash_state * state) { |
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| 227 | int ret = 0; |
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| 228 | |
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| 229 | if ( state == NULL ) |
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| 230 | return -1; |
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| 231 | |
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| 232 | if ( state->cmds->uninit != NULL ) |
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| 233 | ret = state->cmds->uninit(state->state); |
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| 234 | |
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| 235 | roar_mm_free(state->state); |
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| 236 | roar_mm_free(state); |
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| 237 | |
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| 238 | return ret; |
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| 239 | } |
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| 240 | |
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| 241 | int roar_hash_digest(struct roar_hash_state * state, void * digest, size_t * len) { |
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| 242 | if ( state == NULL ) |
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| 243 | return -1; |
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| 244 | |
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| 245 | if ( state->cmds->digest == NULL ) |
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| 246 | return -1; |
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| 247 | |
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| 248 | return state->cmds->digest(state->state, digest, len); |
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| 249 | } |
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| 250 | |
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| 251 | int roar_hash_proc(struct roar_hash_state * state, const void * data, size_t len) { |
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| 252 | if ( state == NULL ) |
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| 253 | return -1; |
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| 254 | |
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| 255 | if ( state->cmds->proc == NULL ) |
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| 256 | return -1; |
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| 257 | |
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| 258 | return state->cmds->proc(state->state, data, len); |
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| 259 | } |
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| 260 | |
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[4450] | 261 | int roar_hash_buffer(void * digest, const void * data, size_t datalen, int algo) { |
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[4454] | 262 | roar_crypto_init(); |
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| 263 | |
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[4450] | 264 | return roar_hash_salted_buffer(digest, data, datalen, algo, NULL, 0); |
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| 265 | } |
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| 266 | |
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[4451] | 267 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 268 | static inline int roar_hash_salted_buffer_gcrypt(void * digest, const void * data, size_t datalen, int algo, const void * salt, size_t saltlen) { |
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| 269 | gcry_md_hd_t hdl; |
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| 270 | |
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[4454] | 271 | roar_crypto_init(); |
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| 272 | |
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[4451] | 273 | algo = roar_ht2gcrypt_tested(algo); |
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| 274 | if ( algo == -1 ) |
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| 275 | return -1; |
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| 276 | |
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| 277 | |
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| 278 | if ( salt == NULL ) { |
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| 279 | // optimized for unsalted: |
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| 280 | gcry_md_hash_buffer(algo, digest, data, datalen); |
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| 281 | return 0; |
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| 282 | } else { |
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| 283 | if ( gcry_md_open(&hdl, algo, 0) != 0 ) |
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| 284 | return -1; |
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| 285 | |
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| 286 | gcry_md_write(hdl, data, datalen); |
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| 287 | gcry_md_write(hdl, salt, saltlen); |
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| 288 | |
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| 289 | memcpy(digest, gcry_md_read(hdl, algo), gcry_md_get_algo_dlen(algo)); |
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| 290 | |
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| 291 | gcry_md_close(hdl); |
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| 292 | } |
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| 293 | |
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| 294 | return 0; |
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| 295 | } |
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| 296 | #endif |
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| 297 | |
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[4450] | 298 | int roar_hash_salted_buffer(void * digest, const void * data, size_t datalen, int algo, const void * salt, size_t saltlen) { |
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[4670] | 299 | struct roar_hash_state * state; |
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| 300 | size_t len; |
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[4671] | 301 | int ret = 0; |
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| 302 | |
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| 303 | ROAR_DBG("roar_hash_salted_buffer(digest=%p, data=%p, datalen=%llu, algo=%i, salt=%p, saltlen=%llu) = ?", digest, data, (unsigned long long int)datalen, algo, salt, (unsigned long long int)saltlen); |
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[4670] | 304 | |
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[4451] | 305 | if ( digest == NULL || data == NULL ) |
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| 306 | return -1; |
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| 307 | |
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[4670] | 308 | len = roar_ht_digestlen(algo); |
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| 309 | if ( len == -1 ) |
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| 310 | return -1; |
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| 311 | |
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| 312 | if ( (state = roar_hash_new(algo)) != NULL ) { |
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[4671] | 313 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 314 | |
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[4670] | 315 | if ( roar_hash_proc(state, data, datalen) == -1 ) |
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| 316 | ret = -1; |
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| 317 | |
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[4671] | 318 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 319 | |
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[4670] | 320 | if ( saltlen != 0 ) |
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| 321 | if ( roar_hash_proc(state, salt, saltlen) == -1 ) |
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| 322 | ret = -1; |
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| 323 | |
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[4671] | 324 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 325 | |
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[4670] | 326 | if ( roar_hash_digest(state, digest, &len) == -1 ) |
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| 327 | ret = -1; |
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| 328 | |
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[4671] | 329 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 330 | |
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[4670] | 331 | if ( roar_hash_free(state) == -1 ) |
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| 332 | ret = -1; |
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| 333 | |
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[4671] | 334 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 335 | |
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[4670] | 336 | return ret; |
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| 337 | } |
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| 338 | |
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[4671] | 339 | ROAR_DBG("roar_hash_salted_buffer(*): state=%p", state); |
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| 340 | |
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[4451] | 341 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 342 | return roar_hash_salted_buffer_gcrypt(digest, data, datalen, algo, salt, saltlen); |
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| 343 | #else |
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[4450] | 344 | return -1; |
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[4451] | 345 | #endif |
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[4450] | 346 | } |
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| 347 | |
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[4446] | 348 | //ll |
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