1/* crypto/objects/obj_xref.c */ 2/* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4 * 2006. 5 */ 6/* ==================================================================== 7 * Copyright (c) 2006 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * licensing@OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 * 54 * This product includes cryptographic software written by Eric Young 55 * (eay@cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh@cryptsoft.com). 57 * 58 */ 59 60#include <openssl/objects.h> 61#include "obj_xref.h" 62 63DECLARE_STACK_OF(nid_triple) 64STACK_OF(nid_triple) *sig_app, *sigx_app; 65 66static int sig_cmp(const nid_triple *a, const nid_triple *b) 67{ 68 return a->sign_id - b->sign_id; 69} 70 71DECLARE_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); 72IMPLEMENT_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); 73 74static int sig_sk_cmp(const nid_triple *const *a, const nid_triple *const *b) 75{ 76 return (*a)->sign_id - (*b)->sign_id; 77} 78 79DECLARE_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); 80 81static int sigx_cmp(const nid_triple *const *a, const nid_triple *const *b) 82{ 83 int ret; 84 ret = (*a)->hash_id - (*b)->hash_id; 85 if (ret) 86 return ret; 87 return (*a)->pkey_id - (*b)->pkey_id; 88} 89 90IMPLEMENT_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); 91 92int OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid) 93{ 94 nid_triple tmp; 95 const nid_triple *rv = NULL; 96 tmp.sign_id = signid; 97 98 if (sig_app) { 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#ifndef OBJ_XREF_TEST2 104 if (rv == NULL) { 105 rv = OBJ_bsearch_sig(&tmp, sigoid_srt, 106 sizeof(sigoid_srt) / sizeof(nid_triple)); 107 } 108#endif 109 if (rv == NULL) 110 return 0; 111 if (pdig_nid) 112 *pdig_nid = rv->hash_id; 113 if (ppkey_nid) 114 *ppkey_nid = rv->pkey_id; 115 return 1; 116} 117 118int 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 int idx = sk_nid_triple_find(sigx_app, &tmp); 129 if (idx >= 0) { 130 t = sk_nid_triple_value(sigx_app, idx); 131 rv = &t; 132 } 133 } 134#ifndef OBJ_XREF_TEST2 135 if (rv == NULL) { 136 rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref, 137 sizeof(sigoid_srt_xref) / sizeof(nid_triple *) 138 ); 139 } 140#endif 141 if (rv == NULL) 142 return 0; 143 if (psignid) 144 *psignid = (*rv)->sign_id; 145 return 1; 146} 147 148int OBJ_add_sigid(int signid, int dig_id, int pkey_id) 149{ 150 nid_triple *ntr; 151 if (!sig_app) 152 sig_app = sk_nid_triple_new(sig_sk_cmp); 153 if (!sig_app) 154 return 0; 155 if (!sigx_app) 156 sigx_app = sk_nid_triple_new(sigx_cmp); 157 if (!sigx_app) 158 return 0; 159 ntr = OPENSSL_malloc(sizeof(int) * 3); 160 if (!ntr) 161 return 0; 162 ntr->sign_id = signid; 163 ntr->hash_id = dig_id; 164 ntr->pkey_id = pkey_id; 165 166 if (!sk_nid_triple_push(sig_app, ntr)) { 167 OPENSSL_free(ntr); 168 return 0; 169 } 170 171 if (!sk_nid_triple_push(sigx_app, ntr)) 172 return 0; 173 174 sk_nid_triple_sort(sig_app); 175 sk_nid_triple_sort(sigx_app); 176 177 return 1; 178} 179 180static void sid_free(nid_triple *tt) 181{ 182 OPENSSL_free(tt); 183} 184 185void OBJ_sigid_free(void) 186{ 187 if (sig_app) { 188 sk_nid_triple_pop_free(sig_app, sid_free); 189 sig_app = NULL; 190 } 191 if (sigx_app) { 192 sk_nid_triple_free(sigx_app); 193 sigx_app = NULL; 194 } 195} 196 197#ifdef OBJ_XREF_TEST 198 199main() 200{ 201 int n1, n2, n3; 202 203 int i, rv; 204# ifdef OBJ_XREF_TEST2 205 for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++) { 206 OBJ_add_sigid(sigoid_srt[i][0], sigoid_srt[i][1], sigoid_srt[i][2]); 207 } 208# endif 209 210 for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++) { 211 n1 = sigoid_srt[i][0]; 212 rv = OBJ_find_sigid_algs(n1, &n2, &n3); 213 printf("Forward: %d, %s %s %s\n", rv, 214 OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3)); 215 n1 = 0; 216 rv = OBJ_find_sigid_by_algs(&n1, n2, n3); 217 printf("Reverse: %d, %s %s %s\n", rv, 218 OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3)); 219 } 220} 221 222#endif 223