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 "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 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         {
  75         "Load file into cache",
  76         NULL,           /* new */
  77         NULL,           /* free */
  78         NULL,           /* init */
  79         NULL,           /* shutdown */
  80         by_file_ctrl,   /* ctrl */
  81         NULL,           /* get_by_subject */
  82         NULL,           /* get_by_issuer_serial */
  83         NULL,           /* get_by_fingerprint */
  84         NULL,           /* get_by_alias */
  85         };
  86
  87 X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
  88         {
  89         return(&x509_file_lookup);
  90         }
  91
  92 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
  93              char **ret)
  94         {
  95         int ok=0,ok2=0;
  96         char *file;
  97
  98         switch (cmd)
  99                 {
 100         case X509_L_FILE_LOAD:
 101                 if (argl == X509_FILETYPE_DEFAULT)
 102                         {
 103                         ok=X509_load_cert_file(ctx,X509_get_default_cert_file(),
 104                                 X509_FILETYPE_PEM);
 105                         ok2=X509_load_crl_file(ctx,X509_get_default_cert_file(),
 106                                 X509_FILETYPE_PEM);
 107                         if (!ok || !ok2)
 108                                 {
 109                                 X509err(X509_F_BY_FILE_CTRL,X509_R_LOADING_DEFAULTS);
 110                                 }
 111                         else
 112                                 {
 113                                 file=(char *)Getenv(X509_get_default_cert_file_env());
 114                                 ok=X509_load_cert_file(ctx,file,
 115                                         X509_FILETYPE_PEM);
 116                                 ok2=X509_load_crl_file(ctx,file,
 117                                         X509_FILETYPE_PEM);
 118                                 }
 119                         }
 120                 else
 121                         {
 122                         ok=X509_load_cert_file(ctx,argp,(int)argl);
 123                         ok2=X509_load_crl_file(ctx,argp,(int)argl);
 124                         }
 125                 break;
 126                 }
 127         return((ok && ok2)?ok:0);
 128         }
 129
 130 int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
 131         {
 132         int ret=0;
 133         BIO *in=NULL;
 134         int i,count=0;
 135         X509 *x=NULL;
 136
 137         if (file == NULL) return(1);
 138         in=BIO_new(BIO_s_file_internal());
 139
 140         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 141                 {
 142                 X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB);
 143                 goto err;
 144                 }
 145
 146         if (type == X509_FILETYPE_PEM)
 147                 {
 148                 for (;;)
 149                         {
 150                         x=PEM_read_bio_X509_AUX(in,NULL,NULL,NULL);
 151                         if (x == NULL)
 152                                 {
 153                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 154                                         PEM_R_NO_START_LINE) && (count > 0))
 155                                         {
 156                                         ERR_clear_error();
 157                                         break;
 158                                         }
 159                                 else
 160                                         {
 161                                         X509err(X509_F_X509_LOAD_CERT_FILE,
 162                                                 ERR_R_PEM_LIB);
 163                                         goto err;
 164                                         }
 165                                 }
 166                         i=X509_STORE_add_cert(ctx->store_ctx,x);
 167                         if (!i) goto err;
 168                         count++;
 169                         X509_free(x);
 170                         x=NULL;
 171                         }
 172                 ret=count;
 173                 }
 174         else if (type == X509_FILETYPE_ASN1)
 175                 {
 176                 x=d2i_X509_bio(in,NULL);
 177                 if (x == NULL)
 178                         {
 179                         X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_ASN1_LIB);
 180                         goto err;
 181                         }
 182                 i=X509_STORE_add_cert(ctx->store_ctx,x);
 183                 if (!i) goto err;
 184                 ret=i;
 185                 }
 186         else
 187                 {
 188                 X509err(X509_F_X509_LOAD_CERT_FILE,X509_R_BAD_X509_FILETYPE);
 189                 goto err;
 190                 }
 191 err:
 192         if (x != NULL) X509_free(x);
 193         if (in != NULL) BIO_free(in);
 194         return(ret);
 195         }
 196
 197 int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 198         {
 199         int ret=0;
 200         BIO *in=NULL;
 201         int i,count=0;
 202         X509_CRL *x=NULL;
 203
 204         if (file == NULL) return(1);
 205         in=BIO_new(BIO_s_file_internal());
 206
 207         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 208                 {
 209                 X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_SYS_LIB);
 210                 goto err;
 211                 }
 212
 213         if (type == X509_FILETYPE_PEM)
 214                 {
 215                 for (;;)
 216                         {
 217                         x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
 218                         if (x == NULL)
 219                                 {
 220                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 221                                         PEM_R_NO_START_LINE) && (count > 0))
 222                                         {
 223                                         ERR_clear_error();
 224                                         break;
 225                                         }
 226                                 else
 227                                         {
 228                                         X509err(X509_F_X509_LOAD_CRL_FILE,
 229                                                 ERR_R_PEM_LIB);
 230                                         goto err;
 231                                         }
 232                                 }
 233                         i=X509_STORE_add_crl(ctx->store_ctx,x);
 234                         if (!i) goto err;
 235                         count++;
 236                         X509_CRL_free(x);
 237                         x=NULL;
 238                         }
 239                 ret=count;
 240                 }
 241         else if (type == X509_FILETYPE_ASN1)
 242                 {
 243                 x=d2i_X509_CRL_bio(in,NULL);
 244                 if (x == NULL)
 245                         {
 246                         X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_ASN1_LIB);
 247                         goto err;
 248                         }
 249                 i=X509_STORE_add_crl(ctx->store_ctx,x);
 250                 if (!i) goto err;
 251                 ret=i;
 252                 }
 253         else
 254                 {
 255                 X509err(X509_F_X509_LOAD_CRL_FILE,X509_R_BAD_X509_FILETYPE);
 256                 goto err;
 257                 }
 258 err:
 259         if (x != NULL) X509_CRL_free(x);
 260         if (in != NULL) BIO_free(in);
 261         return(ret);
 262         }
 263
 264 #endif /* NO_STDIO */
 265