1 /* $OpenBSD: by_file.c,v 1.15 2014/07/11 08:44:49 jsing 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/lhash.h> 68 #include <openssl/x509.h> 69 70 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, 71 long argl, char **ret); 72 73 X509_LOOKUP_METHOD x509_file_lookup = { 74 "Load file into cache", 75 NULL, /* new */ 76 NULL, /* free */ 77 NULL, /* init */ 78 NULL, /* shutdown */ 79 by_file_ctrl, /* ctrl */ 80 NULL, /* get_by_subject */ 81 NULL, /* get_by_issuer_serial */ 82 NULL, /* get_by_fingerprint */ 83 NULL, /* get_by_alias */ 84 }; 85 86 X509_LOOKUP_METHOD * 87 X509_LOOKUP_file(void) 88 { 89 return (&x509_file_lookup); 90 } 91 92 static int 93 by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, 94 char **ret) 95 { 96 int ok = 0; 97 char *file = NULL; 98 99 switch (cmd) { 100 case X509_L_FILE_LOAD: 101 if (argl == X509_FILETYPE_DEFAULT) { 102 if (issetugid() == 0) 103 file = getenv(X509_get_default_cert_file_env()); 104 if (file) 105 ok = (X509_load_cert_crl_file(ctx, file, 106 X509_FILETYPE_PEM) != 0); 107 else 108 ok = (X509_load_cert_crl_file(ctx, 109 X509_get_default_cert_file(), 110 X509_FILETYPE_PEM) != 0); 111 112 if (!ok) { 113 X509err(X509_F_BY_FILE_CTRL, 114 X509_R_LOADING_DEFAULTS); 115 } 116 } else { 117 if (argl == X509_FILETYPE_PEM) 118 ok = (X509_load_cert_crl_file(ctx, argp, 119 X509_FILETYPE_PEM) != 0); 120 else 121 ok = (X509_load_cert_file(ctx, 122 argp, (int)argl) != 0); 123 } 124 break; 125 } 126 return (ok); 127 } 128 129 int 130 X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type) 131 { 132 int ret = 0; 133 BIO *in = NULL; 134 int i, count = 0; 135 X509 *x = NULL; 136 137 if (file == NULL) 138 return (1); 139 in = BIO_new(BIO_s_file_internal()); 140 141 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) { 142 X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_SYS_LIB); 143 goto err; 144 } 145 146 if (type == X509_FILETYPE_PEM) { 147 for (;;) { 148 x = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL); 149 if (x == NULL) { 150 if ((ERR_GET_REASON(ERR_peek_last_error()) == 151 PEM_R_NO_START_LINE) && (count > 0)) { 152 ERR_clear_error(); 153 break; 154 } else { 155 X509err(X509_F_X509_LOAD_CERT_FILE, 156 ERR_R_PEM_LIB); 157 goto err; 158 } 159 } 160 i = X509_STORE_add_cert(ctx->store_ctx, x); 161 if (!i) 162 goto err; 163 count++; 164 X509_free(x); 165 x = NULL; 166 } 167 ret = count; 168 } else if (type == X509_FILETYPE_ASN1) { 169 x = d2i_X509_bio(in, NULL); 170 if (x == NULL) { 171 X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_ASN1_LIB); 172 goto err; 173 } 174 i = X509_STORE_add_cert(ctx->store_ctx, x); 175 if (!i) 176 goto err; 177 ret = i; 178 } else { 179 X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_BAD_X509_FILETYPE); 180 goto err; 181 } 182 err: 183 if (x != NULL) 184 X509_free(x); 185 if (in != NULL) 186 BIO_free(in); 187 return (ret); 188 } 189 190 int 191 X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type) 192 { 193 int ret = 0; 194 BIO *in = NULL; 195 int i, count = 0; 196 X509_CRL *x = NULL; 197 198 if (file == NULL) 199 return (1); 200 in = BIO_new(BIO_s_file_internal()); 201 202 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) { 203 X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_SYS_LIB); 204 goto err; 205 } 206 207 if (type == X509_FILETYPE_PEM) { 208 for (;;) { 209 x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL); 210 if (x == NULL) { 211 if ((ERR_GET_REASON(ERR_peek_last_error()) == 212 PEM_R_NO_START_LINE) && (count > 0)) { 213 ERR_clear_error(); 214 break; 215 } else { 216 X509err(X509_F_X509_LOAD_CRL_FILE, 217 ERR_R_PEM_LIB); 218 goto err; 219 } 220 } 221 i = X509_STORE_add_crl(ctx->store_ctx, x); 222 if (!i) 223 goto err; 224 count++; 225 X509_CRL_free(x); 226 x = NULL; 227 } 228 ret = count; 229 } else if (type == X509_FILETYPE_ASN1) { 230 x = d2i_X509_CRL_bio(in, NULL); 231 if (x == NULL) { 232 X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_ASN1_LIB); 233 goto err; 234 } 235 i = X509_STORE_add_crl(ctx->store_ctx, x); 236 if (!i) 237 goto err; 238 ret = i; 239 } else { 240 X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_BAD_X509_FILETYPE); 241 goto err; 242 } 243 err: 244 if (x != NULL) 245 X509_CRL_free(x); 246 if (in != NULL) 247 BIO_free(in); 248 return (ret); 249 } 250 251 int 252 X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type) 253 { 254 STACK_OF(X509_INFO) *inf; 255 X509_INFO *itmp; 256 BIO *in; 257 int i, count = 0; 258 if (type != X509_FILETYPE_PEM) 259 return X509_load_cert_file(ctx, file, type); 260 in = BIO_new_file(file, "r"); 261 if (!in) { 262 X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_SYS_LIB); 263 return 0; 264 } 265 inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL); 266 BIO_free(in); 267 if (!inf) { 268 X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_PEM_LIB); 269 return 0; 270 } 271 for (i = 0; i < sk_X509_INFO_num(inf); i++) { 272 itmp = sk_X509_INFO_value(inf, i); 273 if (itmp->x509) { 274 X509_STORE_add_cert(ctx->store_ctx, itmp->x509); 275 count++; 276 } 277 if (itmp->crl) { 278 X509_STORE_add_crl(ctx->store_ctx, itmp->crl); 279 count++; 280 } 281 } 282 sk_X509_INFO_pop_free(inf, X509_INFO_free); 283 return count; 284 } 285 286