ref: 63f9a4fda36f916e543c8f3ea117b31c194a4db7
dir: /sys/src/ape/lib/openssl/crypto/x509/x509_v3.c/
/* crypto/x509/x509_v3.c */
/* Copyright (C) 1995-1998 Eric Young ([email protected])
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young ([email protected]).
* 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 ([email protected]).
*
* 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 ([email protected])"
* 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 ([email protected])"
*
* 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 <openssl/stack.h>
#include "cryptlib.h"
#include <openssl/asn1.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x)
{
if (x == NULL) return(0);
return(sk_X509_EXTENSION_num(x));
}
int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid,
int lastpos)
{
ASN1_OBJECT *obj;
obj=OBJ_nid2obj(nid);
if (obj == NULL) return(-2);
return(X509v3_get_ext_by_OBJ(x,obj,lastpos));
}
int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk, ASN1_OBJECT *obj,
int lastpos)
{
int n;
X509_EXTENSION *ex;
if (sk == NULL) return(-1);
lastpos++;
if (lastpos < 0)
lastpos=0;
n=sk_X509_EXTENSION_num(sk);
for ( ; lastpos < n; lastpos++)
{
ex=sk_X509_EXTENSION_value(sk,lastpos);
if (OBJ_cmp(ex->object,obj) == 0)
return(lastpos);
}
return(-1);
}
int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit,
int lastpos)
{
int n;
X509_EXTENSION *ex;
if (sk == NULL) return(-1);
lastpos++;
if (lastpos < 0)
lastpos=0;
n=sk_X509_EXTENSION_num(sk);
for ( ; lastpos < n; lastpos++)
{
ex=sk_X509_EXTENSION_value(sk,lastpos);
if ( ((ex->critical > 0) && crit) ||
((ex->critical <= 0) && !crit))
return(lastpos);
}
return(-1);
}
X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc)
{
if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
return NULL;
else
return sk_X509_EXTENSION_value(x,loc);
}
X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc)
{
X509_EXTENSION *ret;
if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
return(NULL);
ret=sk_X509_EXTENSION_delete(x,loc);
return(ret);
}
STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x,
X509_EXTENSION *ex, int loc)
{
X509_EXTENSION *new_ex=NULL;
int n;
STACK_OF(X509_EXTENSION) *sk=NULL;
if (x == NULL)
{
X509err(X509_F_X509V3_ADD_EXT,ERR_R_PASSED_NULL_PARAMETER);
goto err2;
}
if (*x == NULL)
{
if ((sk=sk_X509_EXTENSION_new_null()) == NULL)
goto err;
}
else
sk= *x;
n=sk_X509_EXTENSION_num(sk);
if (loc > n) loc=n;
else if (loc < 0) loc=n;
if ((new_ex=X509_EXTENSION_dup(ex)) == NULL)
goto err2;
if (!sk_X509_EXTENSION_insert(sk,new_ex,loc))
goto err;
if (*x == NULL)
*x=sk;
return(sk);
err:
X509err(X509_F_X509V3_ADD_EXT,ERR_R_MALLOC_FAILURE);
err2:
if (new_ex != NULL) X509_EXTENSION_free(new_ex);
if (sk != NULL) sk_X509_EXTENSION_free(sk);
return(NULL);
}
X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid,
int crit, ASN1_OCTET_STRING *data)
{
ASN1_OBJECT *obj;
X509_EXTENSION *ret;
obj=OBJ_nid2obj(nid);
if (obj == NULL)
{
X509err(X509_F_X509_EXTENSION_CREATE_BY_NID,X509_R_UNKNOWN_NID);
return(NULL);
}
ret=X509_EXTENSION_create_by_OBJ(ex,obj,crit,data);
if (ret == NULL) ASN1_OBJECT_free(obj);
return(ret);
}
X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex,
ASN1_OBJECT *obj, int crit, ASN1_OCTET_STRING *data)
{
X509_EXTENSION *ret;
if ((ex == NULL) || (*ex == NULL))
{
if ((ret=X509_EXTENSION_new()) == NULL)
{
X509err(X509_F_X509_EXTENSION_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE);
return(NULL);
}
}
else
ret= *ex;
if (!X509_EXTENSION_set_object(ret,obj))
goto err;
if (!X509_EXTENSION_set_critical(ret,crit))
goto err;
if (!X509_EXTENSION_set_data(ret,data))
goto err;
if ((ex != NULL) && (*ex == NULL)) *ex=ret;
return(ret);
err:
if ((ex == NULL) || (ret != *ex))
X509_EXTENSION_free(ret);
return(NULL);
}
int X509_EXTENSION_set_object(X509_EXTENSION *ex, ASN1_OBJECT *obj)
{
if ((ex == NULL) || (obj == NULL))
return(0);
ASN1_OBJECT_free(ex->object);
ex->object=OBJ_dup(obj);
return(1);
}
int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit)
{
if (ex == NULL) return(0);
ex->critical=(crit)?0xFF:-1;
return(1);
}
int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data)
{
int i;
if (ex == NULL) return(0);
i=M_ASN1_OCTET_STRING_set(ex->value,data->data,data->length);
if (!i) return(0);
return(1);
}
ASN1_OBJECT *X509_EXTENSION_get_object(X509_EXTENSION *ex)
{
if (ex == NULL) return(NULL);
return(ex->object);
}
ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ex)
{
if (ex == NULL) return(NULL);
return(ex->value);
}
int X509_EXTENSION_get_critical(X509_EXTENSION *ex)
{
if (ex == NULL) return(0);
if(ex->critical > 0) return 1;
return 0;
}