sl@0: /* crypto/x509/x509_att.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include <openssl/stack.h>
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/asn1.h>
sl@0: #include <openssl/objects.h>
sl@0: #include <openssl/evp.h>
sl@0: #include <openssl/x509.h>
sl@0: #include <openssl/x509v3.h>
sl@0: 
sl@0: EXPORT_C int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
sl@0: {
sl@0: 	if (!x) return 0;
sl@0: 	return(sk_X509_ATTRIBUTE_num(x));
sl@0: }
sl@0: 
sl@0: EXPORT_C int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
sl@0: 			  int lastpos)
sl@0: {
sl@0: 	ASN1_OBJECT *obj;
sl@0: 
sl@0: 	obj=OBJ_nid2obj(nid);
sl@0: 	if (obj == NULL) return(-2);
sl@0: 	return(X509at_get_attr_by_OBJ(x,obj,lastpos));
sl@0: }
sl@0: 
sl@0: EXPORT_C int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk, ASN1_OBJECT *obj,
sl@0: 			  int lastpos)
sl@0: {
sl@0: 	int n;
sl@0: 	X509_ATTRIBUTE *ex;
sl@0: 
sl@0: 	if (sk == NULL) return(-1);
sl@0: 	lastpos++;
sl@0: 	if (lastpos < 0)
sl@0: 		lastpos=0;
sl@0: 	n=sk_X509_ATTRIBUTE_num(sk);
sl@0: 	for ( ; lastpos < n; lastpos++)
sl@0: 		{
sl@0: 		ex=sk_X509_ATTRIBUTE_value(sk,lastpos);
sl@0: 		if (OBJ_cmp(ex->object,obj) == 0)
sl@0: 			return(lastpos);
sl@0: 		}
sl@0: 	return(-1);
sl@0: }
sl@0: 
sl@0: EXPORT_C X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)
sl@0: {
sl@0: 	if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
sl@0: 		return NULL;
sl@0: 	else
sl@0: 		return sk_X509_ATTRIBUTE_value(x,loc);
sl@0: }
sl@0: 
sl@0: EXPORT_C X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
sl@0: {
sl@0: 	X509_ATTRIBUTE *ret;
sl@0: 
sl@0: 	if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
sl@0: 		return(NULL);
sl@0: 	ret=sk_X509_ATTRIBUTE_delete(x,loc);
sl@0: 	return(ret);
sl@0: }
sl@0: 
sl@0: EXPORT_C STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
sl@0: 					 X509_ATTRIBUTE *attr)
sl@0: {
sl@0: 	X509_ATTRIBUTE *new_attr=NULL;
sl@0: 	STACK_OF(X509_ATTRIBUTE) *sk=NULL;
sl@0: 
sl@0: 	if (x == NULL)
sl@0: 		{
sl@0: 		X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_PASSED_NULL_PARAMETER);
sl@0: 		goto err2;
sl@0: 		} 
sl@0: 
sl@0: 	if (*x == NULL)
sl@0: 		{
sl@0: 		if ((sk=sk_X509_ATTRIBUTE_new_null()) == NULL)
sl@0: 			goto err;
sl@0: 		}
sl@0: 	else
sl@0: 		sk= *x;
sl@0: 
sl@0: 	if ((new_attr=X509_ATTRIBUTE_dup(attr)) == NULL)
sl@0: 		goto err2;
sl@0: 	if (!sk_X509_ATTRIBUTE_push(sk,new_attr))
sl@0: 		goto err;
sl@0: 	if (*x == NULL)
sl@0: 		*x=sk;
sl@0: 	return(sk);
sl@0: err:
sl@0: 	X509err(X509_F_X509AT_ADD1_ATTR,ERR_R_MALLOC_FAILURE);
sl@0: err2:
sl@0: 	if (new_attr != NULL) X509_ATTRIBUTE_free(new_attr);
sl@0: 	if (sk != NULL) sk_X509_ATTRIBUTE_free(sk);
sl@0: 	return(NULL);
sl@0: }
sl@0: 
sl@0: EXPORT_C STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) **x,
sl@0: 			const ASN1_OBJECT *obj, int type,
sl@0: 			const unsigned char *bytes, int len)
sl@0: {
sl@0: 	X509_ATTRIBUTE *attr;
sl@0: 	STACK_OF(X509_ATTRIBUTE) *ret;
sl@0: 	attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
sl@0: 	if(!attr) return 0;
sl@0: 	ret = X509at_add1_attr(x, attr);
sl@0: 	X509_ATTRIBUTE_free(attr);
sl@0: 	return ret;
sl@0: }
sl@0: 
sl@0: EXPORT_C STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) **x,
sl@0: 			int nid, int type,
sl@0: 			const unsigned char *bytes, int len)
sl@0: {
sl@0: 	X509_ATTRIBUTE *attr;
sl@0: 	STACK_OF(X509_ATTRIBUTE) *ret;
sl@0: 	attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
sl@0: 	if(!attr) return 0;
sl@0: 	ret = X509at_add1_attr(x, attr);
sl@0: 	X509_ATTRIBUTE_free(attr);
sl@0: 	return ret;
sl@0: }
sl@0: 
sl@0: EXPORT_C STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) **x,
sl@0: 			const char *attrname, int type,
sl@0: 			const unsigned char *bytes, int len)
sl@0: {
sl@0: 	X509_ATTRIBUTE *attr;
sl@0: 	STACK_OF(X509_ATTRIBUTE) *ret;
sl@0: 	attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
sl@0: 	if(!attr) return 0;
sl@0: 	ret = X509at_add1_attr(x, attr);
sl@0: 	X509_ATTRIBUTE_free(attr);
sl@0: 	return ret;
sl@0: }
sl@0: 
sl@0: EXPORT_C X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
sl@0: 	     int atrtype, const void *data, int len)
sl@0: {
sl@0: 	ASN1_OBJECT *obj;
sl@0: 	X509_ATTRIBUTE *ret;
sl@0: 
sl@0: 	obj=OBJ_nid2obj(nid);
sl@0: 	if (obj == NULL)
sl@0: 		{
sl@0: 		X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID,X509_R_UNKNOWN_NID);
sl@0: 		return(NULL);
sl@0: 		}
sl@0: 	ret=X509_ATTRIBUTE_create_by_OBJ(attr,obj,atrtype,data,len);
sl@0: 	if (ret == NULL) ASN1_OBJECT_free(obj);
sl@0: 	return(ret);
sl@0: }
sl@0: 
sl@0: EXPORT_C X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
sl@0: 	     const ASN1_OBJECT *obj, int atrtype, const void *data, int len)
sl@0: {
sl@0: 	X509_ATTRIBUTE *ret;
sl@0: 
sl@0: 	if ((attr == NULL) || (*attr == NULL))
sl@0: 		{
sl@0: 		if ((ret=X509_ATTRIBUTE_new()) == NULL)
sl@0: 			{
sl@0: 			X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE);
sl@0: 			return(NULL);
sl@0: 			}
sl@0: 		}
sl@0: 	else
sl@0: 		ret= *attr;
sl@0: 
sl@0: 	if (!X509_ATTRIBUTE_set1_object(ret,obj))
sl@0: 		goto err;
sl@0: 	if (!X509_ATTRIBUTE_set1_data(ret,atrtype,data,len))
sl@0: 		goto err;
sl@0: 	
sl@0: 	if ((attr != NULL) && (*attr == NULL)) *attr=ret;
sl@0: 	return(ret);
sl@0: err:
sl@0: 	if ((attr == NULL) || (ret != *attr))
sl@0: 		X509_ATTRIBUTE_free(ret);
sl@0: 	return(NULL);
sl@0: }
sl@0: 
sl@0: EXPORT_C X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
sl@0: 		const char *atrname, int type, const unsigned char *bytes, int len)
sl@0: 	{
sl@0: 	ASN1_OBJECT *obj;
sl@0: 	X509_ATTRIBUTE *nattr;
sl@0: 
sl@0: 	obj=OBJ_txt2obj(atrname, 0);
sl@0: 	if (obj == NULL)
sl@0: 		{
sl@0: 		X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT,
sl@0: 						X509_R_INVALID_FIELD_NAME);
sl@0: 		ERR_add_error_data(2, "name=", atrname);
sl@0: 		return(NULL);
sl@0: 		}
sl@0: 	nattr = X509_ATTRIBUTE_create_by_OBJ(attr,obj,type,bytes,len);
sl@0: 	ASN1_OBJECT_free(obj);
sl@0: 	return nattr;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj)
sl@0: {
sl@0: 	if ((attr == NULL) || (obj == NULL))
sl@0: 		return(0);
sl@0: 	ASN1_OBJECT_free(attr->object);
sl@0: 	attr->object=OBJ_dup(obj);
sl@0: 	return(1);
sl@0: }
sl@0: 
sl@0: EXPORT_C int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, const void *data, int len)
sl@0: {
sl@0: 	ASN1_TYPE *ttmp;
sl@0: 	ASN1_STRING *stmp;
sl@0: 	int atype;
sl@0: 	if (!attr) return 0;
sl@0: 	if(attrtype & MBSTRING_FLAG) {
sl@0: 		stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
sl@0: 						OBJ_obj2nid(attr->object));
sl@0: 		if(!stmp) {
sl@0: 			X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_ASN1_LIB);
sl@0: 			return 0;
sl@0: 		}
sl@0: 		atype = stmp->type;
sl@0: 	} else {
sl@0: 		if(!(stmp = ASN1_STRING_type_new(attrtype))) goto err;
sl@0: 		if(!ASN1_STRING_set(stmp, data, len)) goto err;
sl@0: 		atype = attrtype;
sl@0: 	}
sl@0: 	if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err;
sl@0: 	if(!(ttmp = ASN1_TYPE_new())) goto err;
sl@0: 	if(!sk_ASN1_TYPE_push(attr->value.set, ttmp)) goto err;
sl@0: 	attr->single = 0;
sl@0: 	ASN1_TYPE_set(ttmp, atype, stmp);
sl@0: 	return 1;
sl@0: 	err:
sl@0: 	X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_MALLOC_FAILURE);
sl@0: 	return 0;
sl@0: }
sl@0: 
sl@0: EXPORT_C int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr)
sl@0: {
sl@0: 	if(!attr->single) return sk_ASN1_TYPE_num(attr->value.set);
sl@0: 	if(attr->value.single) return 1;
sl@0: 	return 0;
sl@0: }
sl@0: 
sl@0: EXPORT_C ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr)
sl@0: {
sl@0: 	if (attr == NULL) return(NULL);
sl@0: 	return(attr->object);
sl@0: }
sl@0: 
sl@0: EXPORT_C void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
sl@0: 					int atrtype, void *data)
sl@0: {
sl@0: 	ASN1_TYPE *ttmp;
sl@0: 	ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
sl@0: 	if(!ttmp) return NULL;
sl@0: 	if(atrtype != ASN1_TYPE_get(ttmp)){
sl@0: 		X509err(X509_F_X509_ATTRIBUTE_GET0_DATA, X509_R_WRONG_TYPE);
sl@0: 		return NULL;
sl@0: 	}
sl@0: 	return ttmp->value.ptr;
sl@0: }
sl@0: 
sl@0: EXPORT_C ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx)
sl@0: {
sl@0: 	if (attr == NULL) return(NULL);
sl@0: 	if(idx >= X509_ATTRIBUTE_count(attr)) return NULL;
sl@0: 	if(!attr->single) return sk_ASN1_TYPE_value(attr->value.set, idx);
sl@0: 	else return attr->value.single;
sl@0: }