1 /* $OpenBSD: by_file.c,v 1.31 2024/08/31 10:19:17 tb Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <errno.h> 60 #include <stdio.h> 61 #include <time.h> 62 #include <unistd.h> 63 64 #include <openssl/buffer.h> 65 #include <openssl/err.h> 66 #include <openssl/pem.h> 67 #include <openssl/x509.h> 68 69 #include "x509_local.h" 70 71 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, 72 long argl, char **ret); 73 74 static const X509_LOOKUP_METHOD x509_file_lookup = { 75 .name = "Load file into cache", 76 .new_item = NULL, 77 .free = NULL, 78 .ctrl = by_file_ctrl, 79 .get_by_subject = NULL, 80 }; 81 82 const X509_LOOKUP_METHOD * 83 X509_LOOKUP_file(void) 84 { 85 return &x509_file_lookup; 86 } 87 LCRYPTO_ALIAS(X509_LOOKUP_file); 88 89 static int 90 by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, 91 char **ret) 92 { 93 const char *file = argp; 94 int type = argl; 95 96 if (cmd != X509_L_FILE_LOAD) 97 return 0; 98 99 if (argl == X509_FILETYPE_DEFAULT) { 100 file = X509_get_default_cert_file(); 101 type = X509_FILETYPE_PEM; 102 } 103 if (X509_load_cert_crl_file(ctx, file, type) != 0) 104 return 1; 105 if (argl == X509_FILETYPE_DEFAULT) 106 X509error(X509_R_LOADING_DEFAULTS); 107 108 return 0; 109 } 110 111 int 112 X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type) 113 { 114 int ret = 0; 115 BIO *in = NULL; 116 int i, count = 0; 117 X509 *x = NULL; 118 119 in = BIO_new(BIO_s_file()); 120 121 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) { 122 X509error(ERR_R_SYS_LIB); 123 goto err; 124 } 125 126 if (type == X509_FILETYPE_PEM) { 127 for (;;) { 128 x = PEM_read_bio_X509_AUX(in, NULL, NULL, ""); 129 if (x == NULL) { 130 if ((ERR_GET_REASON(ERR_peek_last_error()) == 131 PEM_R_NO_START_LINE) && (count > 0)) { 132 ERR_clear_error(); 133 break; 134 } else { 135 X509error(ERR_R_PEM_LIB); 136 goto err; 137 } 138 } 139 i = X509_STORE_add_cert(ctx->store_ctx, x); 140 if (!i) 141 goto err; 142 count++; 143 X509_free(x); 144 x = NULL; 145 } 146 ret = count; 147 } else if (type == X509_FILETYPE_ASN1) { 148 x = d2i_X509_bio(in, NULL); 149 if (x == NULL) { 150 X509error(ERR_R_ASN1_LIB); 151 goto err; 152 } 153 i = X509_STORE_add_cert(ctx->store_ctx, x); 154 if (!i) 155 goto err; 156 ret = i; 157 } else { 158 X509error(X509_R_BAD_X509_FILETYPE); 159 goto err; 160 } 161 err: 162 X509_free(x); 163 BIO_free(in); 164 return ret; 165 } 166 LCRYPTO_ALIAS(X509_load_cert_file); 167 168 int 169 X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type) 170 { 171 int ret = 0; 172 BIO *in = NULL; 173 int i, count = 0; 174 X509_CRL *x = NULL; 175 176 in = BIO_new(BIO_s_file()); 177 178 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) { 179 X509error(ERR_R_SYS_LIB); 180 goto err; 181 } 182 183 if (type == X509_FILETYPE_PEM) { 184 for (;;) { 185 x = PEM_read_bio_X509_CRL(in, NULL, NULL, ""); 186 if (x == NULL) { 187 if ((ERR_GET_REASON(ERR_peek_last_error()) == 188 PEM_R_NO_START_LINE) && (count > 0)) { 189 ERR_clear_error(); 190 break; 191 } else { 192 X509error(ERR_R_PEM_LIB); 193 goto err; 194 } 195 } 196 i = X509_STORE_add_crl(ctx->store_ctx, x); 197 if (!i) 198 goto err; 199 count++; 200 X509_CRL_free(x); 201 x = NULL; 202 } 203 ret = count; 204 } else if (type == X509_FILETYPE_ASN1) { 205 x = d2i_X509_CRL_bio(in, NULL); 206 if (x == NULL) { 207 X509error(ERR_R_ASN1_LIB); 208 goto err; 209 } 210 i = X509_STORE_add_crl(ctx->store_ctx, x); 211 if (!i) 212 goto err; 213 ret = i; 214 } else { 215 X509error(X509_R_BAD_X509_FILETYPE); 216 goto err; 217 } 218 err: 219 X509_CRL_free(x); 220 BIO_free(in); 221 return ret; 222 } 223 LCRYPTO_ALIAS(X509_load_crl_file); 224 225 int 226 X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type) 227 { 228 STACK_OF(X509_INFO) *inf; 229 X509_INFO *itmp; 230 BIO *in; 231 int i, count = 0; 232 233 if (type != X509_FILETYPE_PEM) 234 return X509_load_cert_file(ctx, file, type); 235 in = BIO_new_file(file, "r"); 236 if (!in) { 237 X509error(ERR_R_SYS_LIB); 238 return 0; 239 } 240 inf = PEM_X509_INFO_read_bio(in, NULL, NULL, ""); 241 BIO_free(in); 242 if (!inf) { 243 X509error(ERR_R_PEM_LIB); 244 return 0; 245 } 246 for (i = 0; i < sk_X509_INFO_num(inf); i++) { 247 itmp = sk_X509_INFO_value(inf, i); 248 if (itmp->x509) { 249 X509_STORE_add_cert(ctx->store_ctx, itmp->x509); 250 count++; 251 } 252 if (itmp->crl) { 253 X509_STORE_add_crl(ctx->store_ctx, itmp->crl); 254 count++; 255 } 256 } 257 if (count == 0) 258 X509error(X509_R_NO_CERTIFICATE_OR_CRL_FOUND); 259 sk_X509_INFO_pop_free(inf, X509_INFO_free); 260 return count; 261 } 262 LCRYPTO_ALIAS(X509_load_cert_crl_file); 263