crypto/x509/x509_v3.c - third_party/openssl - Git at Google

 /* 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 <openssl/stack.h>
 #include "internal/cryptlib.h"
 #include <openssl/asn1.h>
 #include <openssl/objects.h>
 #include <openssl/evp.h>
 #include <openssl/x509.h>
 #include <openssl/x509v3.h>
 #include "x509_lcl.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:
     X509_EXTENSION_free(new_ex);
     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 = 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;
 }
	/* 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 <openssl/stack.h>
	#include "internal/cryptlib.h"
	#include <openssl/asn1.h>
	#include <openssl/objects.h>
	#include <openssl/evp.h>
	#include <openssl/x509.h>
	#include <openssl/x509v3.h>
	#include "x509_lcl.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:
	X509_EXTENSION_free(new_ex);
	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 = 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;
	}