26a3a48d65
like Malloc, Realloc and especially Free conflict with already existing names on some operating systems or other packages. That is reason enough to change the names of the OpenSSL memory allocation macros to something that has a better chance of being unique, like prepending them with OPENSSL_. This change includes all the name changes needed throughout all C files.
364 lines
10 KiB
C
364 lines
10 KiB
C
/* crypto/pem/pem_info.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/buffer.h>
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#include <openssl/objects.h>
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#include <openssl/pem.h>
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#ifndef NO_FP_API
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STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
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{
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BIO *b;
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STACK_OF(X509_INFO) *ret;
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if ((b=BIO_new(BIO_s_file())) == NULL)
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{
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PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
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return(0);
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}
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BIO_set_fp(b,fp,BIO_NOCLOSE);
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ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
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BIO_free(b);
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return(ret);
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}
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#endif
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STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
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{
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X509_INFO *xi=NULL;
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char *name=NULL,*header=NULL,**pp;
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unsigned char *data=NULL,*p;
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long len,error=0;
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int ok=0;
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STACK_OF(X509_INFO) *ret=NULL;
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unsigned int i,raw;
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char *(*d2i)();
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if (sk == NULL)
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{
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if ((ret=sk_X509_INFO_new_null()) == NULL)
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{
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PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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}
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else
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ret=sk;
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if ((xi=X509_INFO_new()) == NULL) goto err;
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for (;;)
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{
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raw=0;
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i=PEM_read_bio(bp,&name,&header,&data,&len);
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if (i == 0)
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{
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error=ERR_GET_REASON(ERR_peek_error());
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if (error == PEM_R_NO_START_LINE)
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{
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ERR_clear_error();
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break;
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}
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goto err;
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}
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start:
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if ( (strcmp(name,PEM_STRING_X509) == 0) ||
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(strcmp(name,PEM_STRING_X509_OLD) == 0))
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{
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d2i=(char *(*)())d2i_X509;
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if (xi->x509 != NULL)
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{
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if (!sk_X509_INFO_push(ret,xi)) goto err;
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if ((xi=X509_INFO_new()) == NULL) goto err;
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goto start;
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}
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pp=(char **)&(xi->x509);
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}
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else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
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{
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d2i=(char *(*)())d2i_X509_AUX;
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if (xi->x509 != NULL)
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{
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if (!sk_X509_INFO_push(ret,xi)) goto err;
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if ((xi=X509_INFO_new()) == NULL) goto err;
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goto start;
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}
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pp=(char **)&(xi->x509);
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}
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else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
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{
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d2i=(char *(*)())d2i_X509_CRL;
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if (xi->crl != NULL)
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{
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if (!sk_X509_INFO_push(ret,xi)) goto err;
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if ((xi=X509_INFO_new()) == NULL) goto err;
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goto start;
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}
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pp=(char **)&(xi->crl);
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}
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else
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#ifndef NO_RSA
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if (strcmp(name,PEM_STRING_RSA) == 0)
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{
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d2i=(char *(*)())d2i_RSAPrivateKey;
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if (xi->x_pkey != NULL)
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{
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if (!sk_X509_INFO_push(ret,xi)) goto err;
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if ((xi=X509_INFO_new()) == NULL) goto err;
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goto start;
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}
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xi->enc_data=NULL;
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xi->enc_len=0;
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xi->x_pkey=X509_PKEY_new();
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if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
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goto err;
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xi->x_pkey->dec_pkey->type=EVP_PKEY_RSA;
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pp=(char **)&(xi->x_pkey->dec_pkey->pkey.rsa);
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if ((int)strlen(header) > 10) /* assume encrypted */
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raw=1;
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}
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else
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#endif
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#ifndef NO_DSA
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if (strcmp(name,PEM_STRING_DSA) == 0)
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{
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d2i=(char *(*)())d2i_DSAPrivateKey;
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if (xi->x_pkey != NULL)
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{
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if (!sk_X509_INFO_push(ret,xi)) goto err;
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if ((xi=X509_INFO_new()) == NULL) goto err;
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goto start;
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}
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xi->enc_data=NULL;
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xi->enc_len=0;
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xi->x_pkey=X509_PKEY_new();
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if ((xi->x_pkey->dec_pkey=EVP_PKEY_new()) == NULL)
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goto err;
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xi->x_pkey->dec_pkey->type=EVP_PKEY_DSA;
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pp=(char **)&(xi->x_pkey->dec_pkey->pkey.dsa);
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if ((int)strlen(header) > 10) /* assume encrypted */
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raw=1;
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}
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else
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#endif
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{
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d2i=NULL;
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pp=NULL;
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}
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if (d2i != NULL)
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{
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if (!raw)
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{
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EVP_CIPHER_INFO cipher;
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if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
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goto err;
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if (!PEM_do_header(&cipher,data,&len,cb,u))
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goto err;
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p=data;
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if (d2i(pp,&p,len) == NULL)
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{
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PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
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goto err;
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}
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}
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else
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{ /* encrypted RSA data */
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if (!PEM_get_EVP_CIPHER_INFO(header,
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&xi->enc_cipher)) goto err;
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xi->enc_data=(char *)data;
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xi->enc_len=(int)len;
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data=NULL;
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}
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}
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else {
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/* unknown */
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}
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if (name != NULL) OPENSSL_free(name);
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if (header != NULL) OPENSSL_free(header);
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if (data != NULL) OPENSSL_free(data);
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name=NULL;
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header=NULL;
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data=NULL;
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}
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/* if the last one hasn't been pushed yet and there is anything
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* in it then add it to the stack ...
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*/
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if ((xi->x509 != NULL) || (xi->crl != NULL) ||
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(xi->x_pkey != NULL) || (xi->enc_data != NULL))
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{
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if (!sk_X509_INFO_push(ret,xi)) goto err;
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xi=NULL;
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}
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ok=1;
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err:
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if (xi != NULL) X509_INFO_free(xi);
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if (!ok)
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{
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for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
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{
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xi=sk_X509_INFO_value(ret,i);
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X509_INFO_free(xi);
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}
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if (ret != sk) sk_X509_INFO_free(ret);
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ret=NULL;
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}
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if (name != NULL) OPENSSL_free(name);
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if (header != NULL) OPENSSL_free(header);
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if (data != NULL) OPENSSL_free(data);
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return(ret);
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}
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/* A TJH addition */
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int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
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unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
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{
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EVP_CIPHER_CTX ctx;
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int i,ret=0;
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unsigned char *data=NULL;
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const char *objstr=NULL;
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char buf[PEM_BUFSIZE];
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unsigned char *iv=NULL;
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if (enc != NULL)
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{
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objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
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if (objstr == NULL)
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{
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PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
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goto err;
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}
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}
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/* now for the fun part ... if we have a private key then
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* we have to be able to handle a not-yet-decrypted key
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* being written out correctly ... if it is decrypted or
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* it is non-encrypted then we use the base code
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*/
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if (xi->x_pkey!=NULL)
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{
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if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
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{
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/* copy from wierdo names into more normal things */
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iv=xi->enc_cipher.iv;
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data=(unsigned char *)xi->enc_data;
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i=xi->enc_len;
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/* we take the encryption data from the
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* internal stuff rather than what the
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* user has passed us ... as we have to
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* match exactly for some strange reason
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*/
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objstr=OBJ_nid2sn(
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EVP_CIPHER_nid(xi->enc_cipher.cipher));
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if (objstr == NULL)
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{
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PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
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goto err;
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}
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/* create the right magic header stuff */
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buf[0]='\0';
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PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
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PEM_dek_info(buf,objstr,8,(char *)iv);
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/* use the normal code to write things out */
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i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
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if (i <= 0) goto err;
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}
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else
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{
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/* Add DSA/DH */
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#ifndef NO_RSA
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/* normal optionally encrypted stuff */
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if (PEM_write_bio_RSAPrivateKey(bp,
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xi->x_pkey->dec_pkey->pkey.rsa,
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enc,kstr,klen,cb,u)<=0)
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goto err;
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#endif
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}
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}
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/* if we have a certificate then write it out now */
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if ((xi->x509 != NULL) || (PEM_write_bio_X509(bp,xi->x509) <= 0))
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goto err;
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/* we are ignoring anything else that is loaded into the X509_INFO
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* structure for the moment ... as I don't need it so I'm not
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* coding it here and Eric can do it when this makes it into the
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* base library --tjh
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*/
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ret=1;
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err:
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memset((char *)&ctx,0,sizeof(ctx));
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memset(buf,0,PEM_BUFSIZE);
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return(ret);
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}
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