242 lines
7.6 KiB
C
242 lines
7.6 KiB
C
/* crypto/asn1/a_set.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/asn1_mac.h>
|
|
|
|
#ifndef NO_ASN1_OLD
|
|
|
|
typedef struct
|
|
{
|
|
unsigned char *pbData;
|
|
int cbData;
|
|
} MYBLOB;
|
|
|
|
/* SetBlobCmp
|
|
* This function compares two elements of SET_OF block
|
|
*/
|
|
static int SetBlobCmp(const void *elem1, const void *elem2 )
|
|
{
|
|
const MYBLOB *b1 = (const MYBLOB *)elem1;
|
|
const MYBLOB *b2 = (const MYBLOB *)elem2;
|
|
int r;
|
|
|
|
r = memcmp(b1->pbData, b2->pbData,
|
|
b1->cbData < b2->cbData ? b1->cbData : b2->cbData);
|
|
if(r != 0)
|
|
return r;
|
|
return b1->cbData-b2->cbData;
|
|
}
|
|
|
|
/* int is_set: if TRUE, then sort the contents (i.e. it isn't a SEQUENCE) */
|
|
int i2d_ASN1_SET(STACK_OF(OPENSSL_BLOCK) *a, unsigned char **pp,
|
|
i2d_of_void *i2d, int ex_tag, int ex_class,
|
|
int is_set)
|
|
{
|
|
int ret=0,r;
|
|
int i;
|
|
unsigned char *p;
|
|
unsigned char *pStart, *pTempMem;
|
|
MYBLOB *rgSetBlob;
|
|
int totSize;
|
|
|
|
if (a == NULL) return(0);
|
|
for (i=sk_OPENSSL_BLOCK_num(a)-1; i>=0; i--)
|
|
ret+=i2d(sk_OPENSSL_BLOCK_value(a,i),NULL);
|
|
r=ASN1_object_size(1,ret,ex_tag);
|
|
if (pp == NULL) return(r);
|
|
|
|
p= *pp;
|
|
ASN1_put_object(&p,1,ret,ex_tag,ex_class);
|
|
|
|
/* Modified by gp@nsj.co.jp */
|
|
/* And then again by Ben */
|
|
/* And again by Steve */
|
|
|
|
if(!is_set || (sk_OPENSSL_BLOCK_num(a) < 2))
|
|
{
|
|
for (i=0; i<sk_OPENSSL_BLOCK_num(a); i++)
|
|
i2d(sk_OPENSSL_BLOCK_value(a,i),&p);
|
|
|
|
*pp=p;
|
|
return(r);
|
|
}
|
|
|
|
pStart = p; /* Catch the beg of Setblobs*/
|
|
/* In this array we will store the SET blobs */
|
|
rgSetBlob = OPENSSL_malloc(sk_OPENSSL_BLOCK_num(a) * sizeof(MYBLOB));
|
|
if (rgSetBlob == NULL)
|
|
{
|
|
ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE);
|
|
return(0);
|
|
}
|
|
|
|
for (i=0; i<sk_OPENSSL_BLOCK_num(a); i++)
|
|
{
|
|
rgSetBlob[i].pbData = p; /* catch each set encode blob */
|
|
i2d(sk_OPENSSL_BLOCK_value(a,i),&p);
|
|
rgSetBlob[i].cbData = p - rgSetBlob[i].pbData; /* Length of this
|
|
SetBlob
|
|
*/
|
|
}
|
|
*pp=p;
|
|
totSize = p - pStart; /* This is the total size of all set blobs */
|
|
|
|
/* Now we have to sort the blobs. I am using a simple algo.
|
|
*Sort ptrs *Copy to temp-mem *Copy from temp-mem to user-mem*/
|
|
qsort( rgSetBlob, sk_OPENSSL_BLOCK_num(a), sizeof(MYBLOB), SetBlobCmp);
|
|
if (!(pTempMem = OPENSSL_malloc(totSize)))
|
|
{
|
|
ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE);
|
|
return(0);
|
|
}
|
|
|
|
/* Copy to temp mem */
|
|
p = pTempMem;
|
|
for(i=0; i<sk_OPENSSL_BLOCK_num(a); ++i)
|
|
{
|
|
memcpy(p, rgSetBlob[i].pbData, rgSetBlob[i].cbData);
|
|
p += rgSetBlob[i].cbData;
|
|
}
|
|
|
|
/* Copy back to user mem*/
|
|
memcpy(pStart, pTempMem, totSize);
|
|
OPENSSL_free(pTempMem);
|
|
OPENSSL_free(rgSetBlob);
|
|
|
|
return(r);
|
|
}
|
|
|
|
STACK_OF(OPENSSL_BLOCK) *d2i_ASN1_SET(STACK_OF(OPENSSL_BLOCK) **a,
|
|
const unsigned char **pp,
|
|
long length, d2i_of_void *d2i,
|
|
void (*free_func)(OPENSSL_BLOCK), int ex_tag,
|
|
int ex_class)
|
|
{
|
|
ASN1_const_CTX c;
|
|
STACK_OF(OPENSSL_BLOCK) *ret=NULL;
|
|
|
|
if ((a == NULL) || ((*a) == NULL))
|
|
{
|
|
if ((ret=sk_OPENSSL_BLOCK_new_null()) == NULL)
|
|
{
|
|
ASN1err(ASN1_F_D2I_ASN1_SET,ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
}
|
|
else
|
|
ret=(*a);
|
|
|
|
c.p= *pp;
|
|
c.max=(length == 0)?0:(c.p+length);
|
|
|
|
c.inf=ASN1_get_object(&c.p,&c.slen,&c.tag,&c.xclass,c.max-c.p);
|
|
if (c.inf & 0x80) goto err;
|
|
if (ex_class != c.xclass)
|
|
{
|
|
ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_CLASS);
|
|
goto err;
|
|
}
|
|
if (ex_tag != c.tag)
|
|
{
|
|
ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_TAG);
|
|
goto err;
|
|
}
|
|
if ((c.slen+c.p) > c.max)
|
|
{
|
|
ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_LENGTH_ERROR);
|
|
goto err;
|
|
}
|
|
/* check for infinite constructed - it can be as long
|
|
* as the amount of data passed to us */
|
|
if (c.inf == (V_ASN1_CONSTRUCTED+1))
|
|
c.slen=length+ *pp-c.p;
|
|
c.max=c.p+c.slen;
|
|
|
|
while (c.p < c.max)
|
|
{
|
|
char *s;
|
|
|
|
if (M_ASN1_D2I_end_sequence()) break;
|
|
/* XXX: This was called with 4 arguments, incorrectly, it seems
|
|
if ((s=func(NULL,&c.p,c.slen,c.max-c.p)) == NULL) */
|
|
if ((s=d2i(NULL,&c.p,c.slen)) == NULL)
|
|
{
|
|
ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_ERROR_PARSING_SET_ELEMENT);
|
|
asn1_add_error(*pp,(int)(c.p- *pp));
|
|
goto err;
|
|
}
|
|
if (!sk_OPENSSL_BLOCK_push(ret,s)) goto err;
|
|
}
|
|
if (a != NULL) (*a)=ret;
|
|
*pp=c.p;
|
|
return(ret);
|
|
err:
|
|
if ((ret != NULL) && ((a == NULL) || (*a != ret)))
|
|
{
|
|
if (free_func != NULL)
|
|
sk_OPENSSL_BLOCK_pop_free(ret,free_func);
|
|
else
|
|
sk_OPENSSL_BLOCK_free(ret);
|
|
}
|
|
return(NULL);
|
|
}
|
|
|
|
#endif
|