crypto/x509/by_file.c

   1 /* crypto/x509/by_file.c */
   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 <stdio.h>
  60 #include <time.h>
  61 #include <errno.h>
  62
  63 #include "internal/cryptlib.h"
  64 #include <openssl/lhash.h>
  65 #include <openssl/buffer.h>
  66 #include <openssl/x509.h>
  67 #include <openssl/pem.h>
  68
  69 #ifndef OPENSSL_NO_STDIO
  70
  71 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
  72                         long argl, char **ret);
  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 *X509_LOOKUP_file(void)
  87 {
  88     return (&x509_file_lookup);
  89 }
  90
  91 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp,
  92                         long argl, char **ret)
  93 {
  94     int ok = 0;
  95     char *file;
  96
  97     switch (cmd) {
  98     case X509_L_FILE_LOAD:
  99         if (argl == X509_FILETYPE_DEFAULT) {
 100             file = (char *)getenv(X509_get_default_cert_file_env());
 101             if (file)
 102                 ok = (X509_load_cert_crl_file(ctx, file,
 103                                               X509_FILETYPE_PEM) != 0);
 104
 105             else
 106                 ok = (X509_load_cert_crl_file
 107                       (ctx, X509_get_default_cert_file(),
 108                        X509_FILETYPE_PEM) != 0);
 109
 110             if (!ok) {
 111                 X509err(X509_F_BY_FILE_CTRL, X509_R_LOADING_DEFAULTS);
 112             }
 113         } else {
 114             if (argl == X509_FILETYPE_PEM)
 115                 ok = (X509_load_cert_crl_file(ctx, argp,
 116                                               X509_FILETYPE_PEM) != 0);
 117             else
 118                 ok = (X509_load_cert_file(ctx, argp, (int)argl) != 0);
 119         }
 120         break;
 121     }
 122     return (ok);
 123 }
 124
 125 int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
 126 {
 127     int ret = 0;
 128     BIO *in = NULL;
 129     int i, count = 0;
 130     X509 *x = NULL;
 131
 132     if (file == NULL)
 133         return (1);
 134     in = BIO_new(BIO_s_file_internal());
 135
 136     if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
 137         X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_SYS_LIB);
 138         goto err;
 139     }
 140
 141     if (type == X509_FILETYPE_PEM) {
 142         for (;;) {
 143             x = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL);
 144             if (x == NULL) {
 145                 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
 146                      PEM_R_NO_START_LINE) && (count > 0)) {
 147                     ERR_clear_error();
 148                     break;
 149                 } else {
 150                     X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_PEM_LIB);
 151                     goto err;
 152                 }
 153             }
 154             i = X509_STORE_add_cert(ctx->store_ctx, x);
 155             if (!i)
 156                 goto err;
 157             count++;
 158             X509_free(x);
 159             x = NULL;
 160         }
 161         ret = count;
 162     } else if (type == X509_FILETYPE_ASN1) {
 163         x = d2i_X509_bio(in, NULL);
 164         if (x == NULL) {
 165             X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_ASN1_LIB);
 166             goto err;
 167         }
 168         i = X509_STORE_add_cert(ctx->store_ctx, x);
 169         if (!i)
 170             goto err;
 171         ret = i;
 172     } else {
 173         X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_BAD_X509_FILETYPE);
 174         goto err;
 175     }
 176  err:
 177     X509_free(x);
 178     BIO_free(in);
 179     return (ret);
 180 }
 181
 182 int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 183 {
 184     int ret = 0;
 185     BIO *in = NULL;
 186     int i, count = 0;
 187     X509_CRL *x = NULL;
 188
 189     if (file == NULL)
 190         return (1);
 191     in = BIO_new(BIO_s_file_internal());
 192
 193     if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
 194         X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_SYS_LIB);
 195         goto err;
 196     }
 197
 198     if (type == X509_FILETYPE_PEM) {
 199         for (;;) {
 200             x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
 201             if (x == NULL) {
 202                 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
 203                      PEM_R_NO_START_LINE) && (count > 0)) {
 204                     ERR_clear_error();
 205                     break;
 206                 } else {
 207                     X509err(X509_F_X509_LOAD_CRL_FILE, 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     X509_CRL_free(x);
 235     BIO_free(in);
 236     return (ret);
 237 }
 238
 239 int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 240 {
 241     STACK_OF(X509_INFO) *inf;
 242     X509_INFO *itmp;
 243     BIO *in;
 244     int i, count = 0;
 245     if (type != X509_FILETYPE_PEM)
 246         return X509_load_cert_file(ctx, file, type);
 247     in = BIO_new_file(file, "r");
 248     if (!in) {
 249         X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_SYS_LIB);
 250         return 0;
 251     }
 252     inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
 253     BIO_free(in);
 254     if (!inf) {
 255         X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_PEM_LIB);
 256         return 0;
 257     }
 258     for (i = 0; i < sk_X509_INFO_num(inf); i++) {
 259         itmp = sk_X509_INFO_value(inf, i);
 260         if (itmp->x509) {
 261             X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
 262             count++;
 263         }
 264         if (itmp->crl) {
 265             X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
 266             count++;
 267         }
 268     }
 269     sk_X509_INFO_pop_free(inf, X509_INFO_free);
 270     return count;
 271 }
 272
 273 #endif                          /* OPENSSL_NO_STDIO */