LCOV - code coverage report
Current view: top level - pem - pem_info.c (source / functions) Hit Total Coverage
Test: lcov_coverage_final.info Lines: 53 153 34.6 %
Date: 2014-08-02 Functions: 1 3 33.3 %
Branches: 35 138 25.4 %

           Branch data     Line data    Source code
       1                 :            : /* crypto/pem/pem_info.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 "cryptlib.h"
      61                 :            : #include <openssl/buffer.h>
      62                 :            : #include <openssl/objects.h>
      63                 :            : #include <openssl/evp.h>
      64                 :            : #include <openssl/x509.h>
      65                 :            : #include <openssl/pem.h>
      66                 :            : #ifndef OPENSSL_NO_RSA
      67                 :            : #include <openssl/rsa.h>
      68                 :            : #endif
      69                 :            : #ifndef OPENSSL_NO_DSA
      70                 :            : #include <openssl/dsa.h>
      71                 :            : #endif
      72                 :            : 
      73                 :            : #ifndef OPENSSL_NO_FP_API
      74                 :          0 : STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
      75                 :            :         {
      76                 :            :         BIO *b;
      77                 :            :         STACK_OF(X509_INFO) *ret;
      78                 :            : 
      79         [ #  # ]:          0 :         if ((b=BIO_new(BIO_s_file())) == NULL)
      80                 :            :                 {
      81                 :          0 :                 PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
      82                 :          0 :                 return(0);
      83                 :            :                 }
      84                 :          0 :         BIO_set_fp(b,fp,BIO_NOCLOSE);
      85                 :          0 :         ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
      86                 :          0 :         BIO_free(b);
      87                 :          0 :         return(ret);
      88                 :            :         }
      89                 :            : #endif
      90                 :            : 
      91                 :        641 : STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
      92                 :            :         {
      93                 :        641 :         X509_INFO *xi=NULL;
      94                 :        641 :         char *name=NULL,*header=NULL;
      95                 :            :         void *pp;
      96                 :        641 :         unsigned char *data=NULL;
      97                 :            :         const unsigned char *p;
      98                 :        641 :         long len,error=0;
      99                 :        641 :         int ok=0;
     100                 :        641 :         STACK_OF(X509_INFO) *ret=NULL;
     101                 :            :         unsigned int i,raw,ptype;
     102                 :        641 :         d2i_of_void *d2i = 0;
     103                 :            : 
     104         [ +  - ]:        641 :         if (sk == NULL)
     105                 :            :                 {
     106         [ -  + ]:        641 :                 if ((ret=sk_X509_INFO_new_null()) == NULL)
     107                 :            :                         {
     108                 :          0 :                         PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
     109                 :          0 :                         goto err;
     110                 :            :                         }
     111                 :            :                 }
     112                 :            :         else
     113                 :            :                 ret=sk;
     114                 :            : 
     115         [ +  - ]:        641 :         if ((xi=X509_INFO_new()) == NULL) goto err;
     116                 :            :         for (;;)
     117                 :            :                 {
     118                 :       1940 :                 raw=0;
     119                 :       1940 :                 ptype = 0;
     120                 :       1940 :                 i=PEM_read_bio(bp,&name,&header,&data,&len);
     121         [ +  + ]:       1940 :                 if (i == 0)
     122                 :            :                         {
     123                 :        641 :                         error=ERR_GET_REASON(ERR_peek_last_error());
     124         [ +  - ]:        641 :                         if (error == PEM_R_NO_START_LINE)
     125                 :            :                                 {
     126                 :        641 :                                 ERR_clear_error();
     127                 :            :                                 break;
     128                 :            :                                 }
     129                 :            :                         goto err;
     130                 :            :                         }
     131                 :            : start:
     132 [ +  + ][ -  + ]:       1914 :                 if (    (strcmp(name,PEM_STRING_X509) == 0) ||
     133                 :         43 :                         (strcmp(name,PEM_STRING_X509_OLD) == 0))
     134                 :            :                         {
     135                 :       1871 :                         d2i=(D2I_OF(void))d2i_X509;
     136         [ +  + ]:       1871 :                         if (xi->x509 != NULL)
     137                 :            :                                 {
     138         [ +  - ]:        615 :                                 if (!sk_X509_INFO_push(ret,xi)) goto err;
     139         [ +  - ]:        615 :                                 if ((xi=X509_INFO_new()) == NULL) goto err;
     140                 :            :                                 goto start;
     141                 :            :                                 }
     142                 :       1256 :                         pp=&(xi->x509);
     143                 :            :                         }
     144         [ -  + ]:         43 :                 else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
     145                 :            :                         {
     146                 :          0 :                         d2i=(D2I_OF(void))d2i_X509_AUX;
     147         [ #  # ]:          0 :                         if (xi->x509 != NULL)
     148                 :            :                                 {
     149         [ #  # ]:          0 :                                 if (!sk_X509_INFO_push(ret,xi)) goto err;
     150         [ #  # ]:          0 :                                 if ((xi=X509_INFO_new()) == NULL) goto err;
     151                 :            :                                 goto start;
     152                 :            :                                 }
     153                 :          0 :                         pp=&(xi->x509);
     154                 :            :                         }
     155         [ -  + ]:         43 :                 else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
     156                 :            :                         {
     157                 :          0 :                         d2i=(D2I_OF(void))d2i_X509_CRL;
     158         [ #  # ]:          0 :                         if (xi->crl != NULL)
     159                 :            :                                 {
     160         [ #  # ]:          0 :                                 if (!sk_X509_INFO_push(ret,xi)) goto err;
     161         [ #  # ]:          0 :                                 if ((xi=X509_INFO_new()) == NULL) goto err;
     162                 :            :                                 goto start;
     163                 :            :                                 }
     164                 :          0 :                         pp=&(xi->crl);
     165                 :            :                         }
     166                 :            :                 else
     167                 :            : #ifndef OPENSSL_NO_RSA
     168         [ -  + ]:         43 :                         if (strcmp(name,PEM_STRING_RSA) == 0)
     169                 :            :                         {
     170                 :          0 :                         d2i=(D2I_OF(void))d2i_RSAPrivateKey;
     171         [ #  # ]:          0 :                         if (xi->x_pkey != NULL) 
     172                 :            :                                 {
     173         [ #  # ]:          0 :                                 if (!sk_X509_INFO_push(ret,xi)) goto err;
     174         [ #  # ]:          0 :                                 if ((xi=X509_INFO_new()) == NULL) goto err;
     175                 :            :                                 goto start;
     176                 :            :                                 }
     177                 :            : 
     178                 :          0 :                         xi->enc_data=NULL;
     179                 :          0 :                         xi->enc_len=0;
     180                 :            : 
     181                 :          0 :                         xi->x_pkey=X509_PKEY_new();
     182                 :          0 :                         ptype=EVP_PKEY_RSA;
     183                 :          0 :                         pp=&xi->x_pkey->dec_pkey;
     184         [ #  # ]:          0 :                         if ((int)strlen(header) > 10) /* assume encrypted */
     185                 :          0 :                                 raw=1;
     186                 :            :                         }
     187                 :            :                 else
     188                 :            : #endif
     189                 :            : #ifndef OPENSSL_NO_DSA
     190         [ -  + ]:         43 :                         if (strcmp(name,PEM_STRING_DSA) == 0)
     191                 :            :                         {
     192                 :          0 :                         d2i=(D2I_OF(void))d2i_DSAPrivateKey;
     193         [ #  # ]:          0 :                         if (xi->x_pkey != NULL) 
     194                 :            :                                 {
     195         [ #  # ]:          0 :                                 if (!sk_X509_INFO_push(ret,xi)) goto err;
     196         [ #  # ]:          0 :                                 if ((xi=X509_INFO_new()) == NULL) goto err;
     197                 :            :                                 goto start;
     198                 :            :                                 }
     199                 :            : 
     200                 :          0 :                         xi->enc_data=NULL;
     201                 :          0 :                         xi->enc_len=0;
     202                 :            : 
     203                 :          0 :                         xi->x_pkey=X509_PKEY_new();
     204                 :          0 :                         ptype = EVP_PKEY_DSA;
     205                 :          0 :                         pp=&xi->x_pkey->dec_pkey;
     206         [ #  # ]:          0 :                         if ((int)strlen(header) > 10) /* assume encrypted */
     207                 :          0 :                                 raw=1;
     208                 :            :                         }
     209                 :            :                 else
     210                 :            : #endif
     211                 :            : #ifndef OPENSSL_NO_EC
     212         [ -  + ]:         43 :                         if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0)
     213                 :            :                         {
     214                 :          0 :                                 d2i=(D2I_OF(void))d2i_ECPrivateKey;
     215         [ #  # ]:          0 :                                 if (xi->x_pkey != NULL) 
     216                 :            :                                 {
     217         [ #  # ]:          0 :                                         if (!sk_X509_INFO_push(ret,xi)) goto err;
     218         [ #  # ]:          0 :                                         if ((xi=X509_INFO_new()) == NULL) goto err;
     219                 :            :                                                 goto start;
     220                 :            :                                 }
     221                 :            :  
     222                 :          0 :                         xi->enc_data=NULL;
     223                 :          0 :                         xi->enc_len=0;
     224                 :            :  
     225                 :          0 :                         xi->x_pkey=X509_PKEY_new();
     226                 :          0 :                         ptype = EVP_PKEY_EC;
     227                 :          0 :                         pp=&xi->x_pkey->dec_pkey;
     228         [ #  # ]:          0 :                         if ((int)strlen(header) > 10) /* assume encrypted */
     229                 :          0 :                                 raw=1;
     230                 :            :                         }
     231                 :            :                 else
     232                 :            : #endif
     233                 :            :                         {
     234                 :            :                         d2i=NULL;
     235                 :            :                         pp=NULL;
     236                 :            :                         }
     237                 :            : 
     238         [ +  + ]:       1299 :                 if (d2i != NULL)
     239                 :            :                         {
     240         [ +  - ]:       1256 :                         if (!raw)
     241                 :            :                                 {
     242                 :            :                                 EVP_CIPHER_INFO cipher;
     243                 :            : 
     244         [ +  - ]:       1256 :                                 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
     245                 :            :                                         goto err;
     246         [ +  - ]:       1256 :                                 if (!PEM_do_header(&cipher,data,&len,cb,u))
     247                 :            :                                         goto err;
     248                 :       1256 :                                 p=data;
     249         [ -  + ]:       1256 :                                 if (ptype)
     250                 :            :                                         {
     251         [ #  # ]:          0 :                                         if (!d2i_PrivateKey(ptype, pp, &p, len))
     252                 :            :                                                 {
     253                 :          0 :                                                 PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
     254                 :          0 :                                                 goto err;
     255                 :            :                                                 }
     256                 :            :                                         }
     257         [ -  + ]:       1256 :                                 else if (d2i(pp,&p,len) == NULL)
     258                 :            :                                         {
     259                 :          0 :                                         PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
     260                 :       1256 :                                         goto err;
     261                 :            :                                         }
     262                 :            :                                 }
     263                 :            :                         else
     264                 :            :                                 { /* encrypted RSA data */
     265         [ #  # ]:          0 :                                 if (!PEM_get_EVP_CIPHER_INFO(header,
     266                 :            :                                         &xi->enc_cipher)) goto err;
     267                 :          0 :                                 xi->enc_data=(char *)data;
     268                 :          0 :                                 xi->enc_len=(int)len;
     269                 :          0 :                                 data=NULL;
     270                 :            :                                 }
     271                 :            :                         }
     272                 :            :                 else    {
     273                 :            :                         /* unknown */
     274                 :            :                         }
     275         [ +  - ]:       1299 :                 if (name != NULL) OPENSSL_free(name);
     276         [ +  - ]:       1299 :                 if (header != NULL) OPENSSL_free(header);
     277         [ +  - ]:       1299 :                 if (data != NULL) OPENSSL_free(data);
     278                 :       1299 :                 name=NULL;
     279                 :       1299 :                 header=NULL;
     280                 :       1299 :                 data=NULL;
     281                 :       1299 :                 }
     282                 :            : 
     283                 :            :         /* if the last one hasn't been pushed yet and there is anything
     284                 :            :          * in it then add it to the stack ... 
     285                 :            :          */
     286 [ -  + ][ #  # ]:       1256 :         if ((xi->x509 != NULL) || (xi->crl != NULL) ||
                 [ #  # ]
     287         [ #  # ]:          0 :                 (xi->x_pkey != NULL) || (xi->enc_data != NULL))
     288                 :            :                 {
     289         [ +  - ]:        641 :                 if (!sk_X509_INFO_push(ret,xi)) goto err;
     290                 :            :                 xi=NULL;
     291                 :            :                 }
     292                 :            :         ok=1;
     293                 :            : err:
     294         [ -  + ]:        641 :         if (xi != NULL) X509_INFO_free(xi);
     295         [ -  + ]:        641 :         if (!ok)
     296                 :            :                 {
     297         [ #  # ]:          0 :                 for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
     298                 :            :                         {
     299                 :          0 :                         xi=sk_X509_INFO_value(ret,i);
     300                 :          0 :                         X509_INFO_free(xi);
     301                 :            :                         }
     302         [ #  # ]:          0 :                 if (ret != sk) sk_X509_INFO_free(ret);
     303                 :            :                 ret=NULL;
     304                 :            :                 }
     305                 :            :                 
     306         [ -  + ]:        641 :         if (name != NULL) OPENSSL_free(name);
     307         [ -  + ]:        641 :         if (header != NULL) OPENSSL_free(header);
     308         [ -  + ]:        641 :         if (data != NULL) OPENSSL_free(data);
     309                 :        641 :         return(ret);
     310                 :            :         }
     311                 :            : 
     312                 :            : 
     313                 :            : /* A TJH addition */
     314                 :          0 : int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
     315                 :            :              unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
     316                 :            :         {
     317                 :            :         EVP_CIPHER_CTX ctx;
     318                 :          0 :         int i,ret=0;
     319                 :          0 :         unsigned char *data=NULL;
     320                 :          0 :         const char *objstr=NULL;
     321                 :            :         char buf[PEM_BUFSIZE];
     322                 :          0 :         unsigned char *iv=NULL;
     323                 :            :         
     324         [ #  # ]:          0 :         if (enc != NULL)
     325                 :            :                 {
     326                 :          0 :                 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
     327         [ #  # ]:          0 :                 if (objstr == NULL)
     328                 :            :                         {
     329                 :          0 :                         PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
     330                 :          0 :                         goto err;
     331                 :            :                         }
     332                 :            :                 }
     333                 :            : 
     334                 :            :         /* now for the fun part ... if we have a private key then 
     335                 :            :          * we have to be able to handle a not-yet-decrypted key
     336                 :            :          * being written out correctly ... if it is decrypted or
     337                 :            :          * it is non-encrypted then we use the base code
     338                 :            :          */
     339         [ #  # ]:          0 :         if (xi->x_pkey!=NULL)
     340                 :            :                 {
     341 [ #  # ][ #  # ]:          0 :                 if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
     342                 :            :                         {
     343         [ #  # ]:          0 :                         if (enc == NULL)
     344                 :            :                                 {
     345                 :          0 :                                 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_CIPHER_IS_NULL);
     346                 :          0 :                                 goto err;
     347                 :            :                                 }
     348                 :            : 
     349                 :            :                         /* copy from weirdo names into more normal things */
     350                 :          0 :                         iv=xi->enc_cipher.iv;
     351                 :          0 :                         data=(unsigned char *)xi->enc_data;
     352                 :          0 :                         i=xi->enc_len;
     353                 :            : 
     354                 :            :                         /* we take the encryption data from the
     355                 :            :                          * internal stuff rather than what the
     356                 :            :                          * user has passed us ... as we have to 
     357                 :            :                          * match exactly for some strange reason
     358                 :            :                          */
     359                 :          0 :                         objstr=OBJ_nid2sn(
     360                 :            :                                 EVP_CIPHER_nid(xi->enc_cipher.cipher));
     361         [ #  # ]:          0 :                         if (objstr == NULL)
     362                 :            :                                 {
     363                 :          0 :                                 PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
     364                 :          0 :                                 goto err;
     365                 :            :                                 }
     366                 :            : 
     367                 :            :                         /* create the right magic header stuff */
     368         [ #  # ]:          0 :                         OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
     369                 :          0 :                         buf[0]='\0';
     370                 :          0 :                         PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
     371                 :          0 :                         PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
     372                 :            : 
     373                 :            :                         /* use the normal code to write things out */
     374                 :          0 :                         i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
     375         [ #  # ]:          0 :                         if (i <= 0) goto err;
     376                 :            :                         }
     377                 :            :                 else
     378                 :            :                         {
     379                 :            :                         /* Add DSA/DH */
     380                 :            : #ifndef OPENSSL_NO_RSA
     381                 :            :                         /* normal optionally encrypted stuff */
     382         [ #  # ]:          0 :                         if (PEM_write_bio_RSAPrivateKey(bp,
     383                 :          0 :                                 xi->x_pkey->dec_pkey->pkey.rsa,
     384                 :            :                                 enc,kstr,klen,cb,u)<=0)
     385                 :            :                                 goto err;
     386                 :            : #endif
     387                 :            :                         }
     388                 :            :                 }
     389                 :            : 
     390                 :            :         /* if we have a certificate then write it out now */
     391 [ #  # ][ #  # ]:          0 :         if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
     392                 :            :                 goto err;
     393                 :            : 
     394                 :            :         /* we are ignoring anything else that is loaded into the X509_INFO
     395                 :            :          * structure for the moment ... as I don't need it so I'm not
     396                 :            :          * coding it here and Eric can do it when this makes it into the
     397                 :            :          * base library --tjh
     398                 :            :          */
     399                 :            : 
     400                 :            :         ret=1;
     401                 :            : 
     402                 :            : err:
     403                 :          0 :         OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
     404                 :          0 :         OPENSSL_cleanse(buf,PEM_BUFSIZE);
     405                 :          0 :         return(ret);
     406                 :            :         }

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