1 /* $OpenBSD: by_file.c,v 1.25 2021/11/10 13:57:42 schwarze 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_lcl.h" 70 71 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, 72 long argl, char **ret); 73 74 static X509_LOOKUP_METHOD x509_file_lookup = { 75 .name = "Load file into cache", 76 .new_item = NULL, 77 .free = NULL, 78 .init = NULL, 79 .shutdown = NULL, 80 .ctrl = by_file_ctrl, 81 .get_by_subject = NULL, 82 .get_by_issuer_serial = NULL, 83 .get_by_fingerprint = NULL, 84 .get_by_alias = NULL, 85 }; 86 87 X509_LOOKUP_METHOD * 88 X509_LOOKUP_file(void) 89 { 90 return &x509_file_lookup; 91 } 92 93 static int 94 by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, 95 char **ret) 96 { 97 int ok = 0; 98 99 switch (cmd) { 100 case X509_L_FILE_LOAD: 101 if (argl == X509_FILETYPE_DEFAULT) { 102 ok = (X509_load_cert_crl_file(ctx, 103 X509_get_default_cert_file(), 104 X509_FILETYPE_PEM) != 0); 105 if (!ok) { 106 X509error(X509_R_LOADING_DEFAULTS); 107 } 108 } else { 109 if (argl == X509_FILETYPE_PEM) 110 ok = (X509_load_cert_crl_file(ctx, argp, 111 X509_FILETYPE_PEM) != 0); 112 else 113 ok = (X509_load_cert_file(ctx, 114 argp, (int)argl) != 0); 115 } 116 break; 117 } 118 return ok; 119 } 120 121 int 122 X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type) 123 { 124 int ret = 0; 125 BIO *in = NULL; 126 int i, count = 0; 127 X509 *x = NULL; 128 129 in = BIO_new(BIO_s_file()); 130 131 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) { 132 X509error(ERR_R_SYS_LIB); 133 goto err; 134 } 135 136 if (type == X509_FILETYPE_PEM) { 137 for (;;) { 138 x = PEM_read_bio_X509_AUX(in, NULL, NULL, ""); 139 if (x == NULL) { 140 if ((ERR_GET_REASON(ERR_peek_last_error()) == 141 PEM_R_NO_START_LINE) && (count > 0)) { 142 ERR_clear_error(); 143 break; 144 } else { 145 X509error(ERR_R_PEM_LIB); 146 goto err; 147 } 148 } 149 i = X509_STORE_add_cert(ctx->store_ctx, x); 150 if (!i) 151 goto err; 152 count++; 153 X509_free(x); 154 x = NULL; 155 } 156 ret = count; 157 } else if (type == X509_FILETYPE_ASN1) { 158 x = d2i_X509_bio(in, NULL); 159 if (x == NULL) { 160 X509error(ERR_R_ASN1_LIB); 161 goto err; 162 } 163 i = X509_STORE_add_cert(ctx->store_ctx, x); 164 if (!i) 165 goto err; 166 ret = i; 167 } else { 168 X509error(X509_R_BAD_X509_FILETYPE); 169 goto err; 170 } 171 err: 172 X509_free(x); 173 BIO_free(in); 174 return ret; 175 } 176 177 int 178 X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type) 179 { 180 int ret = 0; 181 BIO *in = NULL; 182 int i, count = 0; 183 X509_CRL *x = NULL; 184 185 in = BIO_new(BIO_s_file()); 186 187 if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) { 188 X509error(ERR_R_SYS_LIB); 189 goto err; 190 } 191 192 if (type == X509_FILETYPE_PEM) { 193 for (;;) { 194 x = PEM_read_bio_X509_CRL(in, NULL, NULL, ""); 195 if (x == NULL) { 196 if ((ERR_GET_REASON(ERR_peek_last_error()) == 197 PEM_R_NO_START_LINE) && (count > 0)) { 198 ERR_clear_error(); 199 break; 200 } else { 201 X509error(ERR_R_PEM_LIB); 202 goto err; 203 } 204 } 205 i = X509_STORE_add_crl(ctx->store_ctx, x); 206 if (!i) 207 goto err; 208 count++; 209 X509_CRL_free(x); 210 x = NULL; 211 } 212 ret = count; 213 } else if (type == X509_FILETYPE_ASN1) { 214 x = d2i_X509_CRL_bio(in, NULL); 215 if (x == NULL) { 216 X509error(ERR_R_ASN1_LIB); 217 goto err; 218 } 219 i = X509_STORE_add_crl(ctx->store_ctx, x); 220 if (!i) 221 goto err; 222 ret = i; 223 } else { 224 X509error(X509_R_BAD_X509_FILETYPE); 225 goto err; 226 } 227 err: 228 X509_CRL_free(x); 229 BIO_free(in); 230 return ret; 231 } 232 233 int 234 X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type) 235 { 236 STACK_OF(X509_INFO) *inf; 237 X509_INFO *itmp; 238 BIO *in; 239 int i, count = 0; 240 241 if (type != X509_FILETYPE_PEM) 242 return X509_load_cert_file(ctx, file, type); 243 in = BIO_new_file(file, "r"); 244 if (!in) { 245 X509error(ERR_R_SYS_LIB); 246 return 0; 247 } 248 inf = PEM_X509_INFO_read_bio(in, NULL, NULL, ""); 249 BIO_free(in); 250 if (!inf) { 251 X509error(ERR_R_PEM_LIB); 252 return 0; 253 } 254 for (i = 0; i < sk_X509_INFO_num(inf); i++) { 255 itmp = sk_X509_INFO_value(inf, i); 256 if (itmp->x509) { 257 X509_STORE_add_cert(ctx->store_ctx, itmp->x509); 258 count++; 259 } 260 if (itmp->crl) { 261 X509_STORE_add_crl(ctx->store_ctx, itmp->crl); 262 count++; 263 } 264 } 265 if (count == 0) 266 X509error(X509_R_NO_CERTIFICATE_OR_CRL_FOUND); 267 sk_X509_INFO_pop_free(inf, X509_INFO_free); 268 return count; 269 } 270 271