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 "lhash.h"
  67 #include "buffer.h"
  68 #include "x509.h"
  69 #include "pem.h"
  70
  71 #ifndef NO_STDIO
  72
  73 #ifndef NOPROTO
  74 static int by_file_ctrl(X509_LOOKUP *ctx,int cmd,char *argc,
  75         long argl,char **ret);
  76 #else
  77 static int by_file_ctrl();
  78 #endif
  79
  80 X509_LOOKUP_METHOD x509_file_lookup=
  81         {
  82         "Load file into cache",
  83         NULL,           /* new */
  84         NULL,           /* free */
  85         NULL,           /* init */
  86         NULL,           /* shutdown */
  87         by_file_ctrl,   /* ctrl */
  88         NULL,           /* get_by_subject */
  89         NULL,           /* get_by_issuer_serial */
  90         NULL,           /* get_by_fingerprint */
  91         NULL,           /* get_by_alias */
  92         };
  93
  94 X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
  95         {
  96         return(&x509_file_lookup);
  97         }
  98
  99 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, char *argp, long argl,
 100              char **ret)
 101         {
 102         int ok=0,ok2=0;
 103         char *file;
 104
 105         switch (cmd)
 106                 {
 107         case X509_L_FILE_LOAD:
 108                 if (argl == X509_FILETYPE_DEFAULT)
 109                         {
 110                         ok=X509_load_cert_file(ctx,X509_get_default_cert_file(),
 111                                 X509_FILETYPE_PEM);
 112                         ok2=X509_load_crl_file(ctx,X509_get_default_cert_file(),
 113                                 X509_FILETYPE_PEM);
 114                         if (!ok || !ok2)
 115                                 {
 116                                 X509err(X509_F_BY_FILE_CTRL,X509_R_LOADING_DEFAULTS);
 117                                 }
 118                         else
 119                                 {
 120                                 file=(char *)Getenv(X509_get_default_cert_file_env());
 121                                 ok=X509_load_cert_file(ctx,file,
 122                                         X509_FILETYPE_PEM);
 123                                 ok2=X509_load_crl_file(ctx,file,
 124                                         X509_FILETYPE_PEM);
 125                                 }
 126                         }
 127                 else
 128                         {
 129                         ok=X509_load_cert_file(ctx,argp,(int)argl);
 130                         ok2=X509_load_crl_file(ctx,argp,(int)argl);
 131                         }
 132                 break;
 133                 }
 134         return((ok && ok2)?ok:0);
 135         }
 136
 137 int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
 138         {
 139         int ret=0;
 140         BIO *in=NULL;
 141         int i,count=0;
 142         X509 *x=NULL;
 143
 144         if (file == NULL) return(1);
 145         in=BIO_new(BIO_s_file_internal());
 146
 147         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 148                 {
 149                 X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB);
 150                 goto err;
 151                 }
 152
 153         if (type == X509_FILETYPE_PEM)
 154                 {
 155                 for (;;)
 156                         {
 157                         x=PEM_read_bio_X509(in,NULL,NULL);
 158                         if (x == NULL)
 159                                 {
 160                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 161                                         PEM_R_NO_START_LINE) && (count > 0))
 162                                         {
 163                                         ERR_clear_error();
 164                                         break;
 165                                         }
 166                                 else
 167                                         {
 168                                         X509err(X509_F_X509_LOAD_CERT_FILE,
 169                                                 ERR_R_PEM_LIB);
 170                                         goto err;
 171                                         }
 172                                 }
 173                         i=X509_STORE_add_cert(ctx->store_ctx,x);
 174                         if (!i) goto err;
 175                         count++;
 176                         X509_free(x);
 177                         x=NULL;
 178                         }
 179                 ret=count;
 180                 }
 181         else if (type == X509_FILETYPE_ASN1)
 182                 {
 183                 x=d2i_X509_bio(in,NULL);
 184                 if (x == NULL)
 185                         {
 186                         X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_ASN1_LIB);
 187                         goto err;
 188                         }
 189                 i=X509_STORE_add_cert(ctx->store_ctx,x);
 190                 if (!i) goto err;
 191                 ret=i;
 192                 }
 193         else
 194                 {
 195                 X509err(X509_F_X509_LOAD_CERT_FILE,X509_R_BAD_X509_FILETYPE);
 196                 goto err;
 197                 }
 198 err:
 199         if (x != NULL) X509_free(x);
 200         if (in != NULL) BIO_free(in);
 201         return(ret);
 202         }
 203
 204 int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
 205         {
 206         int ret=0;
 207         BIO *in=NULL;
 208         int i,count=0;
 209         X509_CRL *x=NULL;
 210
 211         if (file == NULL) return(1);
 212         in=BIO_new(BIO_s_file_internal());
 213
 214         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 215                 {
 216                 X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_SYS_LIB);
 217                 goto err;
 218                 }
 219
 220         if (type == X509_FILETYPE_PEM)
 221                 {
 222                 for (;;)
 223                         {
 224                         x=PEM_read_bio_X509_CRL(in,NULL,NULL);
 225                         if (x == NULL)
 226                                 {
 227                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 228                                         PEM_R_NO_START_LINE) && (count > 0))
 229                                         {
 230                                         ERR_clear_error();
 231                                         break;
 232                                         }
 233                                 else
 234                                         {
 235                                         X509err(X509_F_X509_LOAD_CRL_FILE,
 236                                                 ERR_R_PEM_LIB);
 237                                         goto err;
 238                                         }
 239                                 }
 240                         i=X509_STORE_add_crl(ctx->store_ctx,x);
 241                         if (!i) goto err;
 242                         count++;
 243                         X509_CRL_free(x);
 244                         x=NULL;
 245                         }
 246                 ret=count;
 247                 }
 248         else if (type == X509_FILETYPE_ASN1)
 249                 {
 250                 x=d2i_X509_CRL_bio(in,NULL);
 251                 if (x == NULL)
 252                         {
 253                         X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_ASN1_LIB);
 254                         goto err;
 255                         }
 256                 i=X509_STORE_add_crl(ctx->store_ctx,x);
 257                 if (!i) goto err;
 258                 ret=i;
 259                 }
 260         else
 261                 {
 262                 X509err(X509_F_X509_LOAD_CRL_FILE,X509_R_BAD_X509_FILETYPE);
 263                 goto err;
 264                 }
 265 err:
 266         if (x != NULL) X509_CRL_free(x);
 267         if (in != NULL) BIO_free(in);
 268         return(ret);
 269         }
 270
 271 #endif /* NO_STDIO */
 272