crypto/libressl/crypto/x509/by_file.c

   1 /* $OpenBSD: by_file.c,v 1.19 2015/04/11 16:03:21 deraadt 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                                 X509err(X509_F_BY_FILE_CTRL,
 106                                     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         if (file == NULL)
 130                 return (1);
 131         in = BIO_new(BIO_s_file_internal());
 132
 133         if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
 134                 X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_SYS_LIB);
 135                 goto err;
 136         }
 137
 138         if (type == X509_FILETYPE_PEM) {
 139                 for (;;) {
 140                         x = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL);
 141                         if (x == NULL) {
 142                                 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
 143                                     PEM_R_NO_START_LINE) && (count > 0)) {
 144                                         ERR_clear_error();
 145                                         break;
 146                                 } else {
 147                                         X509err(X509_F_X509_LOAD_CERT_FILE,
 148                                             ERR_R_PEM_LIB);
 149                                         goto err;
 150                                 }
 151                         }
 152                         i = X509_STORE_add_cert(ctx->store_ctx, x);
 153                         if (!i)
 154                                 goto err;
 155                         count++;
 156                         X509_free(x);
 157                         x = NULL;
 158                 }
 159                 ret = count;
 160         } else if (type == X509_FILETYPE_ASN1) {
 161                 x = d2i_X509_bio(in, NULL);
 162                 if (x == NULL) {
 163                         X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_ASN1_LIB);
 164                         goto err;
 165                 }
 166                 i = X509_STORE_add_cert(ctx->store_ctx, x);
 167                 if (!i)
 168                         goto err;
 169                 ret = i;
 170         } else {
 171                 X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_BAD_X509_FILETYPE);
 172                 goto err;
 173         }
 174 err:
 175         X509_free(x);
 176         BIO_free(in);
 177         return (ret);
 178 }
 179
 180 int
 181 X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 182 {
 183         int ret = 0;
 184         BIO *in = NULL;
 185         int i, count = 0;
 186         X509_CRL *x = NULL;
 187
 188         if (file == NULL)
 189                 return (1);
 190         in = BIO_new(BIO_s_file_internal());
 191
 192         if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
 193                 X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_SYS_LIB);
 194                 goto err;
 195         }
 196
 197         if (type == X509_FILETYPE_PEM) {
 198                 for (;;) {
 199                         x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
 200                         if (x == NULL) {
 201                                 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
 202                                     PEM_R_NO_START_LINE) && (count > 0)) {
 203                                         ERR_clear_error();
 204                                         break;
 205                                 } else {
 206                                         X509err(X509_F_X509_LOAD_CRL_FILE,
 207                                             ERR_R_PEM_LIB);
 208                                         goto err;
 209                                 }
 210                         }
 211                         i = X509_STORE_add_crl(ctx->store_ctx, x);
 212                         if (!i)
 213                                 goto err;
 214                         count++;
 215                         X509_CRL_free(x);
 216                         x = NULL;
 217                 }
 218                 ret = count;
 219         } else if (type == X509_FILETYPE_ASN1) {
 220                 x = d2i_X509_CRL_bio(in, NULL);
 221                 if (x == NULL) {
 222                         X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_ASN1_LIB);
 223                         goto err;
 224                 }
 225                 i = X509_STORE_add_crl(ctx->store_ctx, x);
 226                 if (!i)
 227                         goto err;
 228                 ret = i;
 229         } else {
 230                 X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_BAD_X509_FILETYPE);
 231                 goto err;
 232         }
 233 err:
 234         if (x != NULL)
 235                 X509_CRL_free(x);
 236         BIO_free(in);
 237         return (ret);
 238 }
 239
 240 int
 241 X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 242 {
 243         STACK_OF(X509_INFO) *inf;
 244         X509_INFO *itmp;
 245         BIO *in;
 246         int i, count = 0;
 247         if (type != X509_FILETYPE_PEM)
 248                 return X509_load_cert_file(ctx, file, type);
 249         in = BIO_new_file(file, "r");
 250         if (!in) {
 251                 X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_SYS_LIB);
 252                 return 0;
 253         }
 254         inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
 255         BIO_free(in);
 256         if (!inf) {
 257                 X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_PEM_LIB);
 258                 return 0;
 259         }
 260         for (i = 0; i < sk_X509_INFO_num(inf); i++) {
 261                 itmp = sk_X509_INFO_value(inf, i);
 262                 if (itmp->x509) {
 263                         X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
 264                         count++;
 265                 }
 266                 if (itmp->crl) {
 267                         X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
 268                         count++;
 269                 }
 270         }
 271         sk_X509_INFO_pop_free(inf, X509_INFO_free);
 272         return count;
 273 }
 274