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()
  95         {
  96         return(&x509_file_lookup);
  97         }
  98
  99 static int by_file_ctrl(ctx,cmd,argp,argl,ret)
 100 X509_LOOKUP *ctx;
 101 int cmd;
 102 char *argp;
 103 long argl;
 104 char **ret;
 105         {
 106         int ok=0,ok2=0;
 107         char *file;
 108
 109         switch (cmd)
 110                 {
 111         case X509_L_FILE_LOAD:
 112                 if (argl == X509_FILETYPE_DEFAULT)
 113                         {
 114                         ok=X509_load_cert_file(ctx,X509_get_default_cert_file(),
 115                                 X509_FILETYPE_PEM);
 116                         ok2=X509_load_crl_file(ctx,X509_get_default_cert_file(),
 117                                 X509_FILETYPE_PEM);
 118                         if (!ok || !ok2)
 119                                 {
 120                                 X509err(X509_F_BY_FILE_CTRL,X509_R_LOADING_DEFAULTS);
 121                                 }
 122                         else
 123                                 {
 124                                 file=(char *)Getenv(X509_get_default_cert_file_env());
 125                                 ok=X509_load_cert_file(ctx,file,
 126                                         X509_FILETYPE_PEM);
 127                                 ok2=X509_load_crl_file(ctx,file,
 128                                         X509_FILETYPE_PEM);
 129                                 }
 130                         }
 131                 else
 132                         {
 133                         ok=X509_load_cert_file(ctx,argp,(int)argl);
 134                         ok2=X509_load_crl_file(ctx,argp,(int)argl);
 135                         }
 136                 break;
 137                 }
 138         return((ok && ok2)?ok:0);
 139         }
 140
 141 int X509_load_cert_file(ctx,file,type)
 142 X509_LOOKUP *ctx;
 143 char *file;
 144 int type;
 145         {
 146         int ret=0;
 147         BIO *in=NULL;
 148         int i,count=0;
 149         X509 *x=NULL;
 150
 151         if (file == NULL) return(1);
 152         in=BIO_new(BIO_s_file_internal());
 153
 154         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 155                 {
 156                 X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB);
 157                 goto err;
 158                 }
 159
 160         if (type == X509_FILETYPE_PEM)
 161                 {
 162                 for (;;)
 163                         {
 164                         x=PEM_read_bio_X509(in,NULL,NULL);
 165                         if (x == NULL)
 166                                 {
 167                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 168                                         PEM_R_NO_START_LINE) && (count > 0))
 169                                         {
 170                                         ERR_clear_error();
 171                                         break;
 172                                         }
 173                                 else
 174                                         {
 175                                         X509err(X509_F_X509_LOAD_CERT_FILE,
 176                                                 ERR_R_PEM_LIB);
 177                                         goto err;
 178                                         }
 179                                 }
 180                         i=X509_STORE_add_cert(ctx->store_ctx,x);
 181                         if (!i) goto err;
 182                         count++;
 183                         X509_free(x);
 184                         x=NULL;
 185                         }
 186                 ret=count;
 187                 }
 188         else if (type == X509_FILETYPE_ASN1)
 189                 {
 190                 x=d2i_X509_bio(in,NULL);
 191                 if (x == NULL)
 192                         {
 193                         X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_ASN1_LIB);
 194                         goto err;
 195                         }
 196                 i=X509_STORE_add_cert(ctx->store_ctx,x);
 197                 if (!i) goto err;
 198                 ret=i;
 199                 }
 200         else
 201                 {
 202                 X509err(X509_F_X509_LOAD_CERT_FILE,X509_R_BAD_X509_FILETYPE);
 203                 goto err;
 204                 }
 205 err:
 206         if (x != NULL) X509_free(x);
 207         if (in != NULL) BIO_free(in);
 208         return(ret);
 209         }
 210
 211 int X509_load_crl_file(ctx,file,type)
 212 X509_LOOKUP *ctx;
 213 char *file;
 214 int type;
 215         {
 216         int ret=0;
 217         BIO *in=NULL;
 218         int i,count=0;
 219         X509_CRL *x=NULL;
 220
 221         if (file == NULL) return(1);
 222         in=BIO_new(BIO_s_file_internal());
 223
 224         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
 225                 {
 226                 X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_SYS_LIB);
 227                 goto err;
 228                 }
 229
 230         if (type == X509_FILETYPE_PEM)
 231                 {
 232                 for (;;)
 233                         {
 234                         x=PEM_read_bio_X509_CRL(in,NULL,NULL);
 235                         if (x == NULL)
 236                                 {
 237                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
 238                                         PEM_R_NO_START_LINE) && (count > 0))
 239                                         {
 240                                         ERR_clear_error();
 241                                         break;
 242                                         }
 243                                 else
 244                                         {
 245                                         X509err(X509_F_X509_LOAD_CRL_FILE,
 246                                                 ERR_R_PEM_LIB);
 247                                         goto err;
 248                                         }
 249                                 }
 250                         i=X509_STORE_add_crl(ctx->store_ctx,x);
 251                         if (!i) goto err;
 252                         count++;
 253                         X509_CRL_free(x);
 254                         x=NULL;
 255                         }
 256                 ret=count;
 257                 }
 258         else if (type == X509_FILETYPE_ASN1)
 259                 {
 260                 x=d2i_X509_CRL_bio(in,NULL);
 261                 if (x == NULL)
 262                         {
 263                         X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_ASN1_LIB);
 264                         goto err;
 265                         }
 266                 i=X509_STORE_add_crl(ctx->store_ctx,x);
 267                 if (!i) goto err;
 268                 ret=i;
 269                 }
 270         else
 271                 {
 272                 X509err(X509_F_X509_LOAD_CRL_FILE,X509_R_BAD_X509_FILETYPE);
 273                 goto err;
 274                 }
 275 err:
 276         if (x != NULL) X509_CRL_free(x);
 277         if (in != NULL) BIO_free(in);
 278         return(ret);
 279         }
 280
 281 #endif /* NO_STDIO */
 282