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 #include <sys/types.h>
  63 #include <sys/stat.h>
  64
  65 #include "cryptlib.h"
  66 #include <openssl/lhash.h>
  67 #include <openssl/buffer.h>
  68 #include <openssl/x509.h>
  69 #include <openssl/pem.h>
  70
  71 #ifndef NO_STDIO
  72
  73 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
  74         long argl, char **ret);
  75 X509_LOOKUP_METHOD x509_file_lookup=
  76         {
  77         "Load file into cache",
  78         NULL,           /* new */
  79         NULL,           /* free */
  80         NULL,           /* init */
  81         NULL,           /* shutdown */
  82         by_file_ctrl,   /* ctrl */
  83         NULL,           /* get_by_subject */
  84         NULL,           /* get_by_issuer_serial */
  85         NULL,           /* get_by_fingerprint */
  86         NULL,           /* get_by_alias */
  87         };
  88
  89 X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
  90         {
  91         return(&x509_file_lookup);
  92         }
  93
  94 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
  95              char **ret)
  96         {
  97         int ok=0,ok2=0;
  98         char *file;
  99
 100         switch (cmd)
 101                 {
 102         case X509_L_FILE_LOAD:
 103                 if (argl == X509_FILETYPE_DEFAULT)
 104                         {
 105                         ok=X509_load_cert_file(ctx,X509_get_default_cert_file(),
 106                                 X509_FILETYPE_PEM);
 107                         ok2=X509_load_crl_file(ctx,X509_get_default_cert_file(),
 108                                 X509_FILETYPE_PEM);
 109                         if (!ok || !ok2)
 110                                 {
 111                                 X509err(X509_F_BY_FILE_CTRL,X509_R_LOADING_DEFAULTS);
 112                                 }
 113                         else
 114                                 {
 115                                 file=(char *)Getenv(X509_get_default_cert_file_env());
 116                                 ok=X509_load_cert_file(ctx,file,
 117                                         X509_FILETYPE_PEM);
 118                                 ok2=X509_load_crl_file(ctx,file,
 119                                         X509_FILETYPE_PEM);
 120                                 }
 121                         }
 122                 else
 123                         {
 124                         ok=X509_load_cert_file(ctx,argp,(int)argl);
 125                         ok2=X509_load_crl_file(ctx,argp,(int)argl);
 126                         }
 127                 break;
 128                 }
 129         return((ok && ok2)?ok:0);
 130         }
 131
 132 int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
 133         {
 134         int ret=0;
 135         BIO *in=NULL;
 136         int i,count=0;
 137         X509 *x=NULL;
 138
 139         if (file == NULL) return(1);
 140         in=BIO_new(BIO_s_file_internal());
 141
 142         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 143                 {
 144                 X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB);
 145                 goto err;
 146                 }
 147
 148         if (type == X509_FILETYPE_PEM)
 149                 {
 150                 for (;;)
 151                         {
 152                         x=PEM_read_bio_X509(in,NULL,NULL);
 153                         if (x == NULL)
 154                                 {
 155                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 156                                         PEM_R_NO_START_LINE) && (count > 0))
 157                                         {
 158                                         ERR_clear_error();
 159                                         break;
 160                                         }
 161                                 else
 162                                         {
 163                                         X509err(X509_F_X509_LOAD_CERT_FILE,
 164                                                 ERR_R_PEM_LIB);
 165                                         goto err;
 166                                         }
 167                                 }
 168                         i=X509_STORE_add_cert(ctx->store_ctx,x);
 169                         if (!i) goto err;
 170                         count++;
 171                         X509_free(x);
 172                         x=NULL;
 173                         }
 174                 ret=count;
 175                 }
 176         else if (type == X509_FILETYPE_ASN1)
 177                 {
 178                 x=d2i_X509_bio(in,NULL);
 179                 if (x == NULL)
 180                         {
 181                         X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_ASN1_LIB);
 182                         goto err;
 183                         }
 184                 i=X509_STORE_add_cert(ctx->store_ctx,x);
 185                 if (!i) goto err;
 186                 ret=i;
 187                 }
 188         else
 189                 {
 190                 X509err(X509_F_X509_LOAD_CERT_FILE,X509_R_BAD_X509_FILETYPE);
 191                 goto err;
 192                 }
 193 err:
 194         if (x != NULL) X509_free(x);
 195         if (in != NULL) BIO_free(in);
 196         return(ret);
 197         }
 198
 199 int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 200         {
 201         int ret=0;
 202         BIO *in=NULL;
 203         int i,count=0;
 204         X509_CRL *x=NULL;
 205
 206         if (file == NULL) return(1);
 207         in=BIO_new(BIO_s_file_internal());
 208
 209         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 210                 {
 211                 X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_SYS_LIB);
 212                 goto err;
 213                 }
 214
 215         if (type == X509_FILETYPE_PEM)
 216                 {
 217                 for (;;)
 218                         {
 219                         x=PEM_read_bio_X509_CRL(in,NULL,NULL);
 220                         if (x == NULL)
 221                                 {
 222                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 223                                         PEM_R_NO_START_LINE) && (count > 0))
 224                                         {
 225                                         ERR_clear_error();
 226                                         break;
 227                                         }
 228                                 else
 229                                         {
 230                                         X509err(X509_F_X509_LOAD_CRL_FILE,
 231                                                 ERR_R_PEM_LIB);
 232                                         goto err;
 233                                         }
 234                                 }
 235                         i=X509_STORE_add_crl(ctx->store_ctx,x);
 236                         if (!i) goto err;
 237                         count++;
 238                         X509_CRL_free(x);
 239                         x=NULL;
 240                         }
 241                 ret=count;
 242                 }
 243         else if (type == X509_FILETYPE_ASN1)
 244                 {
 245                 x=d2i_X509_CRL_bio(in,NULL);
 246                 if (x == NULL)
 247                         {
 248                         X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_ASN1_LIB);
 249                         goto err;
 250                         }
 251                 i=X509_STORE_add_crl(ctx->store_ctx,x);
 252                 if (!i) goto err;
 253                 ret=i;
 254                 }
 255         else
 256                 {
 257                 X509err(X509_F_X509_LOAD_CRL_FILE,X509_R_BAD_X509_FILETYPE);
 258                 goto err;
 259                 }
 260 err:
 261         if (x != NULL) X509_CRL_free(x);
 262         if (in != NULL) BIO_free(in);
 263         return(ret);
 264         }
 265
 266 #endif /* NO_STDIO */
 267