crypto/x509/by_file.c

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57
  58 #include <stdio.h>
  59 #include <time.h>
  60 #include <errno.h>
  61
  62 #include "internal/cryptlib.h"
  63 #include <openssl/lhash.h>
  64 #include <openssl/buffer.h>
  65 #include <openssl/x509.h>
  66 #include <openssl/pem.h>
  67 #include "x509_lcl.h"
  68
  69 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
  70                         long argl, char **ret);
  71 static X509_LOOKUP_METHOD x509_file_lookup = {
  72     "Load file into cache",
  73     NULL,                       /* new */
  74     NULL,                       /* free */
  75     NULL,                       /* init */
  76     NULL,                       /* shutdown */
  77     by_file_ctrl,               /* ctrl */
  78     NULL,                       /* get_by_subject */
  79     NULL,                       /* get_by_issuer_serial */
  80     NULL,                       /* get_by_fingerprint */
  81     NULL,                       /* get_by_alias */
  82 };
  83
  84 X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
  85 {
  86     return (&x509_file_lookup);
  87 }
  88
  89 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp,
  90                         long argl, char **ret)
  91 {
  92     int ok = 0;
  93     char *file;
  94
  95     switch (cmd) {
  96     case X509_L_FILE_LOAD:
  97         if (argl == X509_FILETYPE_DEFAULT) {
  98             file = (char *)getenv(X509_get_default_cert_file_env());
  99             if (file)
 100                 ok = (X509_load_cert_crl_file(ctx, file,
 101                                               X509_FILETYPE_PEM) != 0);
 102
 103             else
 104                 ok = (X509_load_cert_crl_file
 105                       (ctx, X509_get_default_cert_file(),
 106                        X509_FILETYPE_PEM) != 0);
 107
 108             if (!ok) {
 109                 X509err(X509_F_BY_FILE_CTRL, X509_R_LOADING_DEFAULTS);
 110             }
 111         } else {
 112             if (argl == X509_FILETYPE_PEM)
 113                 ok = (X509_load_cert_crl_file(ctx, argp,
 114                                               X509_FILETYPE_PEM) != 0);
 115             else
 116                 ok = (X509_load_cert_file(ctx, argp, (int)argl) != 0);
 117         }
 118         break;
 119     }
 120     return (ok);
 121 }
 122
 123 int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
 124 {
 125     int ret = 0;
 126     BIO *in = NULL;
 127     int i, count = 0;
 128     X509 *x = NULL;
 129
 130     if (file == NULL)
 131         return (1);
 132     in = BIO_new(BIO_s_file());
 133
 134     if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
 135         X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_SYS_LIB);
 136         goto err;
 137     }
 138
 139     if (type == X509_FILETYPE_PEM) {
 140         for (;;) {
 141             x = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL);
 142             if (x == NULL) {
 143                 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
 144                      PEM_R_NO_START_LINE) && (count > 0)) {
 145                     ERR_clear_error();
 146                     break;
 147                 } else {
 148                     X509err(X509_F_X509_LOAD_CERT_FILE, 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 X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 181 {
 182     int ret = 0;
 183     BIO *in = NULL;
 184     int i, count = 0;
 185     X509_CRL *x = NULL;
 186
 187     if (file == NULL)
 188         return (1);
 189     in = BIO_new(BIO_s_file());
 190
 191     if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
 192         X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_SYS_LIB);
 193         goto err;
 194     }
 195
 196     if (type == X509_FILETYPE_PEM) {
 197         for (;;) {
 198             x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
 199             if (x == NULL) {
 200                 if ((ERR_GET_REASON(ERR_peek_last_error()) ==
 201                      PEM_R_NO_START_LINE) && (count > 0)) {
 202                     ERR_clear_error();
 203                     break;
 204                 } else {
 205                     X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_PEM_LIB);
 206                     goto err;
 207                 }
 208             }
 209             i = X509_STORE_add_crl(ctx->store_ctx, x);
 210             if (!i)
 211                 goto err;
 212             count++;
 213             X509_CRL_free(x);
 214             x = NULL;
 215         }
 216         ret = count;
 217     } else if (type == X509_FILETYPE_ASN1) {
 218         x = d2i_X509_CRL_bio(in, NULL);
 219         if (x == NULL) {
 220             X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_ASN1_LIB);
 221             goto err;
 222         }
 223         i = X509_STORE_add_crl(ctx->store_ctx, x);
 224         if (!i)
 225             goto err;
 226         ret = i;
 227     } else {
 228         X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_BAD_X509_FILETYPE);
 229         goto err;
 230     }
 231  err:
 232     X509_CRL_free(x);
 233     BIO_free(in);
 234     return (ret);
 235 }
 236
 237 int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 238 {
 239     STACK_OF(X509_INFO) *inf;
 240     X509_INFO *itmp;
 241     BIO *in;
 242     int i, count = 0;
 243     if (type != X509_FILETYPE_PEM)
 244         return X509_load_cert_file(ctx, file, type);
 245     in = BIO_new_file(file, "r");
 246     if (!in) {
 247         X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_SYS_LIB);
 248         return 0;
 249     }
 250     inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
 251     BIO_free(in);
 252     if (!inf) {
 253         X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_PEM_LIB);
 254         return 0;
 255     }
 256     for (i = 0; i < sk_X509_INFO_num(inf); i++) {
 257         itmp = sk_X509_INFO_value(inf, i);
 258         if (itmp->x509) {
 259             X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
 260             count++;
 261         }
 262         if (itmp->crl) {
 263             X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
 264             count++;
 265         }
 266     }
 267     sk_X509_INFO_pop_free(inf, X509_INFO_free);
 268     return count;
 269 }