678948068b
-=-=-=-=-=-=-=-=-=-=-=-=-= -Begin work on Navigation Meshes (simple pathfinding for now, will improve soon) -More doc on theme overriding -Upgraded OpenSSL to version without bugs -Misc bugfixes
407 lines
11 KiB
C
407 lines
11 KiB
C
/* crypto/pem/pem_info.c */
|
|
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
|
* All rights reserved.
|
|
*
|
|
* This package is an SSL implementation written
|
|
* by Eric Young (eay@cryptsoft.com).
|
|
* The implementation was written so as to conform with Netscapes SSL.
|
|
*
|
|
* This library is free for commercial and non-commercial use as long as
|
|
* the following conditions are aheared to. The following conditions
|
|
* apply to all code found in this distribution, be it the RC4, RSA,
|
|
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
|
|
* included with this distribution is covered by the same copyright terms
|
|
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
|
|
*
|
|
* Copyright remains Eric Young's, and as such any Copyright notices in
|
|
* the code are not to be removed.
|
|
* If this package is used in a product, Eric Young should be given attribution
|
|
* as the author of the parts of the library used.
|
|
* This can be in the form of a textual message at program startup or
|
|
* in documentation (online or textual) provided with the package.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* "This product includes cryptographic software written by
|
|
* Eric Young (eay@cryptsoft.com)"
|
|
* The word 'cryptographic' can be left out if the rouines from the library
|
|
* being used are not cryptographic related :-).
|
|
* 4. If you include any Windows specific code (or a derivative thereof) from
|
|
* the apps directory (application code) you must include an acknowledgement:
|
|
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* The licence and distribution terms for any publically available version or
|
|
* derivative of this code cannot be changed. i.e. this code cannot simply be
|
|
* copied and put under another distribution licence
|
|
* [including the GNU Public Licence.]
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include "cryptlib.h"
|
|
#include <openssl/buffer.h>
|
|
#include <openssl/objects.h>
|
|
#include <openssl/evp.h>
|
|
#include <openssl/x509.h>
|
|
#include <openssl/pem.h>
|
|
#ifndef OPENSSL_NO_RSA
|
|
#include <openssl/rsa.h>
|
|
#endif
|
|
#ifndef OPENSSL_NO_DSA
|
|
#include <openssl/dsa.h>
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_FP_API
|
|
STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
|
|
{
|
|
BIO *b;
|
|
STACK_OF(X509_INFO) *ret;
|
|
|
|
if ((b=BIO_new(BIO_s_file())) == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_X509_INFO_READ,ERR_R_BUF_LIB);
|
|
return(0);
|
|
}
|
|
BIO_set_fp(b,fp,BIO_NOCLOSE);
|
|
ret=PEM_X509_INFO_read_bio(b,sk,cb,u);
|
|
BIO_free(b);
|
|
return(ret);
|
|
}
|
|
#endif
|
|
|
|
STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, pem_password_cb *cb, void *u)
|
|
{
|
|
X509_INFO *xi=NULL;
|
|
char *name=NULL,*header=NULL;
|
|
void *pp;
|
|
unsigned char *data=NULL;
|
|
const unsigned char *p;
|
|
long len,error=0;
|
|
int ok=0;
|
|
STACK_OF(X509_INFO) *ret=NULL;
|
|
unsigned int i,raw,ptype;
|
|
d2i_of_void *d2i = 0;
|
|
|
|
if (sk == NULL)
|
|
{
|
|
if ((ret=sk_X509_INFO_new_null()) == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
}
|
|
else
|
|
ret=sk;
|
|
|
|
if ((xi=X509_INFO_new()) == NULL) goto err;
|
|
for (;;)
|
|
{
|
|
raw=0;
|
|
ptype = 0;
|
|
i=PEM_read_bio(bp,&name,&header,&data,&len);
|
|
if (i == 0)
|
|
{
|
|
error=ERR_GET_REASON(ERR_peek_last_error());
|
|
if (error == PEM_R_NO_START_LINE)
|
|
{
|
|
ERR_clear_error();
|
|
break;
|
|
}
|
|
goto err;
|
|
}
|
|
start:
|
|
if ( (strcmp(name,PEM_STRING_X509) == 0) ||
|
|
(strcmp(name,PEM_STRING_X509_OLD) == 0))
|
|
{
|
|
d2i=(D2I_OF(void))d2i_X509;
|
|
if (xi->x509 != NULL)
|
|
{
|
|
if (!sk_X509_INFO_push(ret,xi)) goto err;
|
|
if ((xi=X509_INFO_new()) == NULL) goto err;
|
|
goto start;
|
|
}
|
|
pp=&(xi->x509);
|
|
}
|
|
else if ((strcmp(name,PEM_STRING_X509_TRUSTED) == 0))
|
|
{
|
|
d2i=(D2I_OF(void))d2i_X509_AUX;
|
|
if (xi->x509 != NULL)
|
|
{
|
|
if (!sk_X509_INFO_push(ret,xi)) goto err;
|
|
if ((xi=X509_INFO_new()) == NULL) goto err;
|
|
goto start;
|
|
}
|
|
pp=&(xi->x509);
|
|
}
|
|
else if (strcmp(name,PEM_STRING_X509_CRL) == 0)
|
|
{
|
|
d2i=(D2I_OF(void))d2i_X509_CRL;
|
|
if (xi->crl != NULL)
|
|
{
|
|
if (!sk_X509_INFO_push(ret,xi)) goto err;
|
|
if ((xi=X509_INFO_new()) == NULL) goto err;
|
|
goto start;
|
|
}
|
|
pp=&(xi->crl);
|
|
}
|
|
else
|
|
#ifndef OPENSSL_NO_RSA
|
|
if (strcmp(name,PEM_STRING_RSA) == 0)
|
|
{
|
|
d2i=(D2I_OF(void))d2i_RSAPrivateKey;
|
|
if (xi->x_pkey != NULL)
|
|
{
|
|
if (!sk_X509_INFO_push(ret,xi)) goto err;
|
|
if ((xi=X509_INFO_new()) == NULL) goto err;
|
|
goto start;
|
|
}
|
|
|
|
xi->enc_data=NULL;
|
|
xi->enc_len=0;
|
|
|
|
xi->x_pkey=X509_PKEY_new();
|
|
ptype=EVP_PKEY_RSA;
|
|
pp=&xi->x_pkey->dec_pkey;
|
|
if ((int)strlen(header) > 10) /* assume encrypted */
|
|
raw=1;
|
|
}
|
|
else
|
|
#endif
|
|
#ifndef OPENSSL_NO_DSA
|
|
if (strcmp(name,PEM_STRING_DSA) == 0)
|
|
{
|
|
d2i=(D2I_OF(void))d2i_DSAPrivateKey;
|
|
if (xi->x_pkey != NULL)
|
|
{
|
|
if (!sk_X509_INFO_push(ret,xi)) goto err;
|
|
if ((xi=X509_INFO_new()) == NULL) goto err;
|
|
goto start;
|
|
}
|
|
|
|
xi->enc_data=NULL;
|
|
xi->enc_len=0;
|
|
|
|
xi->x_pkey=X509_PKEY_new();
|
|
ptype = EVP_PKEY_DSA;
|
|
pp=&xi->x_pkey->dec_pkey;
|
|
if ((int)strlen(header) > 10) /* assume encrypted */
|
|
raw=1;
|
|
}
|
|
else
|
|
#endif
|
|
#ifndef OPENSSL_NO_EC
|
|
if (strcmp(name,PEM_STRING_ECPRIVATEKEY) == 0)
|
|
{
|
|
d2i=(D2I_OF(void))d2i_ECPrivateKey;
|
|
if (xi->x_pkey != NULL)
|
|
{
|
|
if (!sk_X509_INFO_push(ret,xi)) goto err;
|
|
if ((xi=X509_INFO_new()) == NULL) goto err;
|
|
goto start;
|
|
}
|
|
|
|
xi->enc_data=NULL;
|
|
xi->enc_len=0;
|
|
|
|
xi->x_pkey=X509_PKEY_new();
|
|
ptype = EVP_PKEY_EC;
|
|
pp=&xi->x_pkey->dec_pkey;
|
|
if ((int)strlen(header) > 10) /* assume encrypted */
|
|
raw=1;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
d2i=NULL;
|
|
pp=NULL;
|
|
}
|
|
|
|
if (d2i != NULL)
|
|
{
|
|
if (!raw)
|
|
{
|
|
EVP_CIPHER_INFO cipher;
|
|
|
|
if (!PEM_get_EVP_CIPHER_INFO(header,&cipher))
|
|
goto err;
|
|
if (!PEM_do_header(&cipher,data,&len,cb,u))
|
|
goto err;
|
|
p=data;
|
|
if (ptype)
|
|
{
|
|
if (!d2i_PrivateKey(ptype, pp, &p, len))
|
|
{
|
|
PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
|
|
goto err;
|
|
}
|
|
}
|
|
else if (d2i(pp,&p,len) == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_X509_INFO_READ_BIO,ERR_R_ASN1_LIB);
|
|
goto err;
|
|
}
|
|
}
|
|
else
|
|
{ /* encrypted RSA data */
|
|
if (!PEM_get_EVP_CIPHER_INFO(header,
|
|
&xi->enc_cipher)) goto err;
|
|
xi->enc_data=(char *)data;
|
|
xi->enc_len=(int)len;
|
|
data=NULL;
|
|
}
|
|
}
|
|
else {
|
|
/* unknown */
|
|
}
|
|
if (name != NULL) OPENSSL_free(name);
|
|
if (header != NULL) OPENSSL_free(header);
|
|
if (data != NULL) OPENSSL_free(data);
|
|
name=NULL;
|
|
header=NULL;
|
|
data=NULL;
|
|
}
|
|
|
|
/* if the last one hasn't been pushed yet and there is anything
|
|
* in it then add it to the stack ...
|
|
*/
|
|
if ((xi->x509 != NULL) || (xi->crl != NULL) ||
|
|
(xi->x_pkey != NULL) || (xi->enc_data != NULL))
|
|
{
|
|
if (!sk_X509_INFO_push(ret,xi)) goto err;
|
|
xi=NULL;
|
|
}
|
|
ok=1;
|
|
err:
|
|
if (xi != NULL) X509_INFO_free(xi);
|
|
if (!ok)
|
|
{
|
|
for (i=0; ((int)i)<sk_X509_INFO_num(ret); i++)
|
|
{
|
|
xi=sk_X509_INFO_value(ret,i);
|
|
X509_INFO_free(xi);
|
|
}
|
|
if (ret != sk) sk_X509_INFO_free(ret);
|
|
ret=NULL;
|
|
}
|
|
|
|
if (name != NULL) OPENSSL_free(name);
|
|
if (header != NULL) OPENSSL_free(header);
|
|
if (data != NULL) OPENSSL_free(data);
|
|
return(ret);
|
|
}
|
|
|
|
|
|
/* A TJH addition */
|
|
int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc,
|
|
unsigned char *kstr, int klen, pem_password_cb *cb, void *u)
|
|
{
|
|
EVP_CIPHER_CTX ctx;
|
|
int i,ret=0;
|
|
unsigned char *data=NULL;
|
|
const char *objstr=NULL;
|
|
char buf[PEM_BUFSIZE];
|
|
unsigned char *iv=NULL;
|
|
|
|
if (enc != NULL)
|
|
{
|
|
objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
|
|
if (objstr == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
/* now for the fun part ... if we have a private key then
|
|
* we have to be able to handle a not-yet-decrypted key
|
|
* being written out correctly ... if it is decrypted or
|
|
* it is non-encrypted then we use the base code
|
|
*/
|
|
if (xi->x_pkey!=NULL)
|
|
{
|
|
if ( (xi->enc_data!=NULL) && (xi->enc_len>0) )
|
|
{
|
|
if (enc == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_CIPHER_IS_NULL);
|
|
goto err;
|
|
}
|
|
|
|
/* copy from weirdo names into more normal things */
|
|
iv=xi->enc_cipher.iv;
|
|
data=(unsigned char *)xi->enc_data;
|
|
i=xi->enc_len;
|
|
|
|
/* we take the encryption data from the
|
|
* internal stuff rather than what the
|
|
* user has passed us ... as we have to
|
|
* match exactly for some strange reason
|
|
*/
|
|
objstr=OBJ_nid2sn(
|
|
EVP_CIPHER_nid(xi->enc_cipher.cipher));
|
|
if (objstr == NULL)
|
|
{
|
|
PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
|
|
goto err;
|
|
}
|
|
|
|
/* create the right magic header stuff */
|
|
OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
|
|
buf[0]='\0';
|
|
PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
|
|
PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
|
|
|
|
/* use the normal code to write things out */
|
|
i=PEM_write_bio(bp,PEM_STRING_RSA,buf,data,i);
|
|
if (i <= 0) goto err;
|
|
}
|
|
else
|
|
{
|
|
/* Add DSA/DH */
|
|
#ifndef OPENSSL_NO_RSA
|
|
/* normal optionally encrypted stuff */
|
|
if (PEM_write_bio_RSAPrivateKey(bp,
|
|
xi->x_pkey->dec_pkey->pkey.rsa,
|
|
enc,kstr,klen,cb,u)<=0)
|
|
goto err;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/* if we have a certificate then write it out now */
|
|
if ((xi->x509 != NULL) && (PEM_write_bio_X509(bp,xi->x509) <= 0))
|
|
goto err;
|
|
|
|
/* we are ignoring anything else that is loaded into the X509_INFO
|
|
* structure for the moment ... as I don't need it so I'm not
|
|
* coding it here and Eric can do it when this makes it into the
|
|
* base library --tjh
|
|
*/
|
|
|
|
ret=1;
|
|
|
|
err:
|
|
OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
|
|
OPENSSL_cleanse(buf,PEM_BUFSIZE);
|
|
return(ret);
|
|
}
|