mirror of https://github.com/openssl/openssl.git
384 lines
9.3 KiB
C
384 lines
9.3 KiB
C
/* crypto/asn1/a_object.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 <limits.h>
|
|
#include "cryptlib.h"
|
|
#include <openssl/buffer.h>
|
|
#include <openssl/asn1.h>
|
|
#include <openssl/objects.h>
|
|
|
|
int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
|
|
{
|
|
unsigned char *p;
|
|
int objsize;
|
|
|
|
if ((a == NULL) || (a->data == NULL)) return(0);
|
|
|
|
objsize = ASN1_object_size(0,a->length,V_ASN1_OBJECT);
|
|
if (pp == NULL) return objsize;
|
|
|
|
p= *pp;
|
|
ASN1_put_object(&p,0,a->length,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);
|
|
memcpy(p,a->data,a->length);
|
|
p+=a->length;
|
|
|
|
*pp=p;
|
|
return(objsize);
|
|
}
|
|
|
|
int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
|
|
{
|
|
int i,first,len=0,c, use_bn;
|
|
char ftmp[24], *tmp = ftmp;
|
|
int tmpsize = sizeof ftmp;
|
|
const char *p;
|
|
unsigned long l;
|
|
BIGNUM *bl = NULL;
|
|
|
|
if (num == 0)
|
|
return(0);
|
|
else if (num == -1)
|
|
num=strlen(buf);
|
|
|
|
p=buf;
|
|
c= *(p++);
|
|
num--;
|
|
if ((c >= '0') && (c <= '2'))
|
|
{
|
|
first= c-'0';
|
|
}
|
|
else
|
|
{
|
|
ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_FIRST_NUM_TOO_LARGE);
|
|
goto err;
|
|
}
|
|
|
|
if (num <= 0)
|
|
{
|
|
ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_MISSING_SECOND_NUMBER);
|
|
goto err;
|
|
}
|
|
c= *(p++);
|
|
num--;
|
|
for (;;)
|
|
{
|
|
if (num <= 0) break;
|
|
if ((c != '.') && (c != ' '))
|
|
{
|
|
ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_SEPARATOR);
|
|
goto err;
|
|
}
|
|
l=0;
|
|
use_bn = 0;
|
|
for (;;)
|
|
{
|
|
if (num <= 0) break;
|
|
num--;
|
|
c= *(p++);
|
|
if ((c == ' ') || (c == '.'))
|
|
break;
|
|
if ((c < '0') || (c > '9'))
|
|
{
|
|
ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_DIGIT);
|
|
goto err;
|
|
}
|
|
if (!use_bn && l > (ULONG_MAX / 10L))
|
|
{
|
|
use_bn = 1;
|
|
if (!bl)
|
|
bl = BN_new();
|
|
if (!bl || !BN_set_word(bl, l))
|
|
goto err;
|
|
}
|
|
if (use_bn)
|
|
{
|
|
if (!BN_mul_word(bl, 10L)
|
|
|| !BN_add_word(bl, c-'0'))
|
|
goto err;
|
|
}
|
|
else
|
|
l=l*10L+(long)(c-'0');
|
|
}
|
|
if (len == 0)
|
|
{
|
|
if ((first < 2) && (l >= 40))
|
|
{
|
|
ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_SECOND_NUMBER_TOO_LARGE);
|
|
goto err;
|
|
}
|
|
if (use_bn)
|
|
{
|
|
if (!BN_add_word(bl, first * 40))
|
|
goto err;
|
|
}
|
|
else
|
|
l+=(long)first*40;
|
|
}
|
|
i=0;
|
|
if (use_bn)
|
|
{
|
|
int blsize;
|
|
blsize = BN_num_bits(bl);
|
|
blsize = (blsize + 6)/7;
|
|
if (blsize > tmpsize)
|
|
{
|
|
if (tmp != ftmp)
|
|
OPENSSL_free(tmp);
|
|
tmpsize = blsize + 32;
|
|
tmp = OPENSSL_malloc(tmpsize);
|
|
if (!tmp)
|
|
goto err;
|
|
}
|
|
while(blsize--)
|
|
tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
|
|
}
|
|
else
|
|
{
|
|
|
|
for (;;)
|
|
{
|
|
tmp[i++]=(unsigned char)l&0x7f;
|
|
l>>=7L;
|
|
if (l == 0L) break;
|
|
}
|
|
|
|
}
|
|
if (out != NULL)
|
|
{
|
|
if (len+i > olen)
|
|
{
|
|
ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_BUFFER_TOO_SMALL);
|
|
goto err;
|
|
}
|
|
while (--i > 0)
|
|
out[len++]=tmp[i]|0x80;
|
|
out[len++]=tmp[0];
|
|
}
|
|
else
|
|
len+=i;
|
|
}
|
|
if (tmp != ftmp)
|
|
OPENSSL_free(tmp);
|
|
if (bl)
|
|
BN_free(bl);
|
|
return(len);
|
|
err:
|
|
if (tmp != ftmp)
|
|
OPENSSL_free(tmp);
|
|
if (bl)
|
|
BN_free(bl);
|
|
return(0);
|
|
}
|
|
|
|
int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
|
|
{
|
|
return OBJ_obj2txt(buf, buf_len, a, 0);
|
|
}
|
|
|
|
int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
|
|
{
|
|
char buf[80], *p = buf;
|
|
int i;
|
|
|
|
if ((a == NULL) || (a->data == NULL))
|
|
return(BIO_write(bp,"NULL",4));
|
|
i=i2t_ASN1_OBJECT(buf,sizeof buf,a);
|
|
if (i > (int)(sizeof(buf) - 1))
|
|
{
|
|
p = OPENSSL_malloc(i + 1);
|
|
if (!p)
|
|
return -1;
|
|
i2t_ASN1_OBJECT(p,i + 1,a);
|
|
}
|
|
BIO_write(bp,p,i);
|
|
if (p != buf)
|
|
OPENSSL_free(p);
|
|
return(i);
|
|
}
|
|
|
|
ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
|
|
long length)
|
|
{
|
|
const unsigned char *p;
|
|
long len;
|
|
int tag,xclass;
|
|
int inf,i;
|
|
ASN1_OBJECT *ret = NULL;
|
|
p= *pp;
|
|
inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
|
|
if (inf & 0x80)
|
|
{
|
|
i=ASN1_R_BAD_OBJECT_HEADER;
|
|
goto err;
|
|
}
|
|
|
|
if (tag != V_ASN1_OBJECT)
|
|
{
|
|
i=ASN1_R_EXPECTING_AN_OBJECT;
|
|
goto err;
|
|
}
|
|
ret = c2i_ASN1_OBJECT(a, &p, len);
|
|
if(ret) *pp = p;
|
|
return ret;
|
|
err:
|
|
ASN1err(ASN1_F_D2I_ASN1_OBJECT,i);
|
|
if ((ret != NULL) && ((a == NULL) || (*a != ret)))
|
|
ASN1_OBJECT_free(ret);
|
|
return(NULL);
|
|
}
|
|
ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
|
|
long len)
|
|
{
|
|
ASN1_OBJECT *ret=NULL;
|
|
const unsigned char *p;
|
|
int i;
|
|
|
|
/* only the ASN1_OBJECTs from the 'table' will have values
|
|
* for ->sn or ->ln */
|
|
if ((a == NULL) || ((*a) == NULL) ||
|
|
!((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC))
|
|
{
|
|
if ((ret=ASN1_OBJECT_new()) == NULL) return(NULL);
|
|
}
|
|
else ret=(*a);
|
|
|
|
p= *pp;
|
|
if ((ret->data == NULL) || (ret->length < len))
|
|
{
|
|
if (ret->data != NULL) OPENSSL_free(ret->data);
|
|
ret->data=(unsigned char *)OPENSSL_malloc(len ? (int)len : 1);
|
|
ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;
|
|
if (ret->data == NULL)
|
|
{ i=ERR_R_MALLOC_FAILURE; goto err; }
|
|
}
|
|
memcpy(ret->data,p,(int)len);
|
|
ret->length=(int)len;
|
|
ret->sn=NULL;
|
|
ret->ln=NULL;
|
|
/* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
|
|
p+=len;
|
|
|
|
if (a != NULL) (*a)=ret;
|
|
*pp=p;
|
|
return(ret);
|
|
err:
|
|
ASN1err(ASN1_F_C2I_ASN1_OBJECT,i);
|
|
if ((ret != NULL) && ((a == NULL) || (*a != ret)))
|
|
ASN1_OBJECT_free(ret);
|
|
return(NULL);
|
|
}
|
|
|
|
ASN1_OBJECT *ASN1_OBJECT_new(void)
|
|
{
|
|
ASN1_OBJECT *ret;
|
|
|
|
ret=(ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
|
|
if (ret == NULL)
|
|
{
|
|
ASN1err(ASN1_F_ASN1_OBJECT_NEW,ERR_R_MALLOC_FAILURE);
|
|
return(NULL);
|
|
}
|
|
ret->length=0;
|
|
ret->data=NULL;
|
|
ret->nid=0;
|
|
ret->sn=NULL;
|
|
ret->ln=NULL;
|
|
ret->flags=ASN1_OBJECT_FLAG_DYNAMIC;
|
|
return(ret);
|
|
}
|
|
|
|
void ASN1_OBJECT_free(ASN1_OBJECT *a)
|
|
{
|
|
if (a == NULL) return;
|
|
if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS)
|
|
{
|
|
#ifndef CONST_STRICT /* disable purely for compile-time strict const checking. Doing this on a "real" compile will cause memory leaks */
|
|
if (a->sn != NULL) OPENSSL_free((void *)a->sn);
|
|
if (a->ln != NULL) OPENSSL_free((void *)a->ln);
|
|
#endif
|
|
a->sn=a->ln=NULL;
|
|
}
|
|
if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA)
|
|
{
|
|
if (a->data != NULL) OPENSSL_free(a->data);
|
|
a->data=NULL;
|
|
a->length=0;
|
|
}
|
|
if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
|
|
OPENSSL_free(a);
|
|
}
|
|
|
|
ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
|
|
const char *sn, const char *ln)
|
|
{
|
|
ASN1_OBJECT o;
|
|
|
|
o.sn=sn;
|
|
o.ln=ln;
|
|
o.data=data;
|
|
o.nid=nid;
|
|
o.length=len;
|
|
o.flags=ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
|
|
ASN1_OBJECT_FLAG_DYNAMIC_DATA;
|
|
return(OBJ_dup(&o));
|
|
}
|
|
|
|
IMPLEMENT_STACK_OF(ASN1_OBJECT)
|
|
IMPLEMENT_ASN1_SET_OF(ASN1_OBJECT)
|