1 /* $OpenBSD: by_file.c,v 1.21 2017/01/29 17:49:23 beck 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 static X509_LOOKUP_METHOD x509_file_lookup = { 74 .name = "Load file into cache", 75 .new_item = NULL, 76 .free = NULL, 77 .init = NULL, 78 .shutdown = NULL, 79 .ctrl = by_file_ctrl, 80 .get_by_subject = NULL, 81 .get_by_issuer_serial = NULL, 82 .get_by_fingerprint = NULL, 83 .get_by_alias = NULL, 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 98 switch (cmd) { 99 case X509_L_FILE_LOAD: 100 if (argl == X509_FILETYPE_DEFAULT) { 101 ok = (X509_load_cert_crl_file(ctx, 102 X509_get_default_cert_file(), 103 X509_FILETYPE_PEM) != 0); 104 if (!ok) { 105 X509error(X509_R_LOADING_DEFAULTS); 106 } 107 } else { 108 if (argl == X509_FILETYPE_PEM) 109 ok = (X509_load_cert_crl_file(ctx, argp, 110 X509_FILETYPE_PEM) != 0); 111 else 112 ok = (X509_load_cert_file(ctx, 113 argp, (int)argl) != 0); 114 } 115 break; 116 } 117 return (ok); 118 } 119 120 int 121 X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type) 122 { 123 int ret = 0; 124 BIO *in = NULL; 125 int i, count = 0; 126 X509 *x = NULL; 127 128 if (file == NULL) 129 return (1); 130 in = BIO_new(BIO_s_file_internal()); 131 132 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) { 133 X509error(ERR_R_SYS_LIB); 134 goto err; 135 } 136 137 if (type == X509_FILETYPE_PEM) { 138 for (;;) { 139 x = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL); 140 if (x == NULL) { 141 if ((ERR_GET_REASON(ERR_peek_last_error()) == 142 PEM_R_NO_START_LINE) && (count > 0)) { 143 ERR_clear_error(); 144 break; 145 } else { 146 X509error(ERR_R_PEM_LIB); 147 goto err; 148 } 149 } 150 i = X509_STORE_add_cert(ctx->store_ctx, x); 151 if (!i) 152 goto err; 153 count++; 154 X509_free(x); 155 x = NULL; 156 } 157 ret = count; 158 } else if (type == X509_FILETYPE_ASN1) { 159 x = d2i_X509_bio(in, NULL); 160 if (x == NULL) { 161 X509error(ERR_R_ASN1_LIB); 162 goto err; 163 } 164 i = X509_STORE_add_cert(ctx->store_ctx, x); 165 if (!i) 166 goto err; 167 ret = i; 168 } else { 169 X509error(X509_R_BAD_X509_FILETYPE); 170 goto err; 171 } 172 err: 173 X509_free(x); 174 BIO_free(in); 175 return (ret); 176 } 177 178 int 179 X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type) 180 { 181 int ret = 0; 182 BIO *in = NULL; 183 int i, count = 0; 184 X509_CRL *x = NULL; 185 186 if (file == NULL) 187 return (1); 188 in = BIO_new(BIO_s_file_internal()); 189 190 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) { 191 X509error(ERR_R_SYS_LIB); 192 goto err; 193 } 194 195 if (type == X509_FILETYPE_PEM) { 196 for (;;) { 197 x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL); 198 if (x == NULL) { 199 if ((ERR_GET_REASON(ERR_peek_last_error()) == 200 PEM_R_NO_START_LINE) && (count > 0)) { 201 ERR_clear_error(); 202 break; 203 } else { 204 X509error(ERR_R_PEM_LIB); 205 goto err; 206 } 207 } 208 i = X509_STORE_add_crl(ctx->store_ctx, x); 209 if (!i) 210 goto err; 211 count++; 212 X509_CRL_free(x); 213 x = NULL; 214 } 215 ret = count; 216 } else if (type == X509_FILETYPE_ASN1) { 217 x = d2i_X509_CRL_bio(in, NULL); 218 if (x == NULL) { 219 X509error(ERR_R_ASN1_LIB); 220 goto err; 221 } 222 i = X509_STORE_add_crl(ctx->store_ctx, x); 223 if (!i) 224 goto err; 225 ret = i; 226 } else { 227 X509error(X509_R_BAD_X509_FILETYPE); 228 goto err; 229 } 230 err: 231 if (x != NULL) 232 X509_CRL_free(x); 233 BIO_free(in); 234 return (ret); 235 } 236 237 int 238 X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type) 239 { 240 STACK_OF(X509_INFO) *inf; 241 X509_INFO *itmp; 242 BIO *in; 243 int i, count = 0; 244 if (type != X509_FILETYPE_PEM) 245 return X509_load_cert_file(ctx, file, type); 246 in = BIO_new_file(file, "r"); 247 if (!in) { 248 X509error(ERR_R_SYS_LIB); 249 return 0; 250 } 251 inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL); 252 BIO_free(in); 253 if (!inf) { 254 X509error(ERR_R_PEM_LIB); 255 return 0; 256 } 257 for (i = 0; i < sk_X509_INFO_num(inf); i++) { 258 itmp = sk_X509_INFO_value(inf, i); 259 if (itmp->x509) { 260 X509_STORE_add_cert(ctx->store_ctx, itmp->x509); 261 count++; 262 } 263 if (itmp->crl) { 264 X509_STORE_add_crl(ctx->store_ctx, itmp->crl); 265 count++; 266 } 267 } 268 sk_X509_INFO_pop_free(inf, X509_INFO_free); 269 return count; 270 } 271 272