1 /* $OpenBSD$ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project 2006. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59 #include <openssl/objects.h> 60 #include "obj_xref.h" 61 62 DECLARE_STACK_OF(nid_triple) 63 STACK_OF(nid_triple) *sig_app, *sigx_app; 64 65 static int 66 sig_cmp(const nid_triple *a, const nid_triple *b) 67 { 68 return a->sign_id - b->sign_id; 69 } 70 71 DECLARE_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); 72 IMPLEMENT_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); 73 74 static int 75 sig_sk_cmp(const nid_triple * const *a, const nid_triple * const *b) 76 { 77 return (*a)->sign_id - (*b)->sign_id; 78 } 79 80 DECLARE_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); 81 82 static int 83 sigx_cmp(const nid_triple * const *a, const nid_triple * const *b) 84 { 85 int ret; 86 87 ret = (*a)->hash_id - (*b)->hash_id; 88 if (ret) 89 return ret; 90 return (*a)->pkey_id - (*b)->pkey_id; 91 } 92 93 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); 94 95 int 96 OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid) 97 { 98 nid_triple tmp; 99 const nid_triple *rv = NULL; 100 tmp.sign_id = signid; 101 102 if (sig_app) { 103 int idx = sk_nid_triple_find(sig_app, &tmp); 104 if (idx >= 0) 105 rv = sk_nid_triple_value(sig_app, idx); 106 } 107 108 #ifndef OBJ_XREF_TEST2 109 if (rv == NULL) { 110 rv = OBJ_bsearch_sig(&tmp, sigoid_srt, 111 sizeof(sigoid_srt) / sizeof(nid_triple)); 112 } 113 #endif 114 if (rv == NULL) 115 return 0; 116 if (pdig_nid) 117 *pdig_nid = rv->hash_id; 118 if (ppkey_nid) 119 *ppkey_nid = rv->pkey_id; 120 return 1; 121 } 122 123 int 124 OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid) 125 { 126 nid_triple tmp; 127 const nid_triple *t = &tmp; 128 const nid_triple **rv = NULL; 129 130 tmp.hash_id = dig_nid; 131 tmp.pkey_id = pkey_nid; 132 133 if (sigx_app) { 134 int idx = sk_nid_triple_find(sigx_app, &tmp); 135 if (idx >= 0) { 136 t = sk_nid_triple_value(sigx_app, idx); 137 rv = &t; 138 } 139 } 140 141 #ifndef OBJ_XREF_TEST2 142 if (rv == NULL) { 143 rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref, 144 sizeof(sigoid_srt_xref) / sizeof(nid_triple *)); 145 } 146 #endif 147 if (rv == NULL) 148 return 0; 149 if (psignid) 150 *psignid = (*rv)->sign_id; 151 return 1; 152 } 153 154 int 155 OBJ_add_sigid(int signid, int dig_id, int pkey_id) 156 { 157 nid_triple *ntr; 158 159 if (!sig_app) 160 sig_app = sk_nid_triple_new(sig_sk_cmp); 161 if (!sig_app) 162 return 0; 163 if (!sigx_app) 164 sigx_app = sk_nid_triple_new(sigx_cmp); 165 if (!sigx_app) 166 return 0; 167 ntr = reallocarray(NULL, 3, sizeof(int)); 168 if (!ntr) 169 return 0; 170 ntr->sign_id = signid; 171 ntr->hash_id = dig_id; 172 ntr->pkey_id = pkey_id; 173 174 if (!sk_nid_triple_push(sig_app, ntr)) { 175 free(ntr); 176 return 0; 177 } 178 179 if (!sk_nid_triple_push(sigx_app, ntr)) 180 return 0; 181 182 sk_nid_triple_sort(sig_app); 183 sk_nid_triple_sort(sigx_app); 184 185 return 1; 186 } 187 188 static void 189 sid_free(nid_triple *tt) 190 { 191 free(tt); 192 } 193 194 void 195 OBJ_sigid_free(void) 196 { 197 if (sig_app) { 198 sk_nid_triple_pop_free(sig_app, sid_free); 199 sig_app = NULL; 200 } 201 if (sigx_app) { 202 sk_nid_triple_free(sigx_app); 203 sigx_app = NULL; 204 } 205 } 206