1 /* crypto/objects/obj_xref.c */ 2 /* Written by Dr Stephen N Henson (steve (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh (at) 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 sig_cmp(const nid_triple *a, const nid_triple *b) 66 { 67 return a->sign_id - b->sign_id; 68 } 69 70 DECLARE_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); 71 IMPLEMENT_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); 72 73 static int sig_sk_cmp(const nid_triple * const *a, const nid_triple * const *b) 74 { 75 return (*a)->sign_id - (*b)->sign_id; 76 } 77 78 DECLARE_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); 79 80 static int sigx_cmp(const nid_triple * const *a, const nid_triple * const *b) 81 { 82 int ret; 83 ret = (*a)->hash_id - (*b)->hash_id; 84 if (ret) 85 return ret; 86 return (*a)->pkey_id - (*b)->pkey_id; 87 } 88 89 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); 90 91 int OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid) 92 { 93 nid_triple tmp; 94 const nid_triple *rv = NULL; 95 tmp.sign_id = signid; 96 97 if (sig_app) 98 { 99 int idx = sk_nid_triple_find(sig_app, &tmp); 100 if (idx >= 0) 101 rv = sk_nid_triple_value(sig_app, idx); 102 } 103 104 #ifndef OBJ_XREF_TEST2 105 if (rv == NULL) 106 { 107 rv = OBJ_bsearch_sig(&tmp, sigoid_srt, 108 sizeof(sigoid_srt) / sizeof(nid_triple)); 109 } 110 #endif 111 if (rv == NULL) 112 return 0; 113 *pdig_nid = rv->hash_id; 114 *ppkey_nid = rv->pkey_id; 115 return 1; 116 } 117 118 int OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid) 119 { 120 nid_triple tmp; 121 const nid_triple *t=&tmp; 122 const nid_triple **rv = NULL; 123 124 tmp.hash_id = dig_nid; 125 tmp.pkey_id = pkey_nid; 126 127 if (sigx_app) 128 { 129 int idx = sk_nid_triple_find(sigx_app, &tmp); 130 if (idx >= 0) 131 { 132 t = sk_nid_triple_value(sigx_app, idx); 133 rv = &t; 134 } 135 } 136 137 #ifndef OBJ_XREF_TEST2 138 if (rv == NULL) 139 { 140 rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref, 141 sizeof(sigoid_srt_xref) / sizeof(nid_triple *) 142 ); 143 } 144 #endif 145 if (rv == NULL) 146 return 0; 147 *psignid = (*rv)->sign_id; 148 return 1; 149 } 150 151 int OBJ_add_sigid(int signid, int dig_id, int pkey_id) 152 { 153 nid_triple *ntr; 154 if (!sig_app) 155 sig_app = sk_nid_triple_new(sig_sk_cmp); 156 if (!sig_app) 157 return 0; 158 if (!sigx_app) 159 sigx_app = sk_nid_triple_new(sigx_cmp); 160 if (!sigx_app) 161 return 0; 162 ntr = OPENSSL_malloc(sizeof(int) * 3); 163 if (!ntr) 164 return 0; 165 ntr->sign_id = signid; 166 ntr->hash_id = dig_id; 167 ntr->pkey_id = pkey_id; 168 169 if (!sk_nid_triple_push(sig_app, ntr)) 170 { 171 OPENSSL_free(ntr); 172 return 0; 173 } 174 175 if (!sk_nid_triple_push(sigx_app, ntr)) 176 return 0; 177 178 sk_nid_triple_sort(sig_app); 179 sk_nid_triple_sort(sigx_app); 180 181 return 1; 182 } 183 184 static void sid_free(nid_triple *tt) 185 { 186 OPENSSL_free(tt); 187 } 188 189 void OBJ_sigid_free(void) 190 { 191 if (sig_app) 192 { 193 sk_nid_triple_pop_free(sig_app, sid_free); 194 sig_app = NULL; 195 } 196 if (sigx_app) 197 { 198 sk_nid_triple_free(sigx_app); 199 sigx_app = NULL; 200 } 201 } 202 203 #ifdef OBJ_XREF_TEST 204 205 main() 206 { 207 int n1, n2, n3; 208 209 int i, rv; 210 #ifdef OBJ_XREF_TEST2 211 for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++) 212 { 213 OBJ_add_sigid(sigoid_srt[i][0], sigoid_srt[i][1], 214 sigoid_srt[i][2]); 215 } 216 #endif 217 218 for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++) 219 { 220 n1 = sigoid_srt[i][0]; 221 rv = OBJ_find_sigid_algs(n1, &n2, &n3); 222 printf("Forward: %d, %s %s %s\n", rv, 223 OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3)); 224 n1=0; 225 rv = OBJ_find_sigid_by_algs(&n1, n2, n3); 226 printf("Reverse: %d, %s %s %s\n", rv, 227 OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3)); 228 } 229 } 230 231 #endif 232
