/* crypto/x509/x509_req.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.]

  */

  /*

  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

  */

 #include <stdio.h>

 #include "cryptlib.h"

 #include <openssl/bn.h>

 #include <openssl/evp.h>

 #include <openssl/asn1.h>

 #include <openssl/x509.h>

 #include <openssl/objects.h>

 #include <openssl/buffer.h>

 #include <openssl/pem.h>

 #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

 #include "libcrypto_wsd_macros.h"

 #include "libcrypto_wsd.h"

 #endif

 EXPORT_C X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)

 	{

 	X509_REQ *ret;

 	X509_REQ_INFO *ri;

 	int i;

 	EVP_PKEY *pktmp;

 	ret=X509_REQ_new();

 	if (ret == NULL)

 		{

 		X509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE);

 		goto err;

 		}

 	ri=ret->req_info;

 	ri->version->length=1;

 	ri->version->data=(unsigned char *)OPENSSL_malloc(1);

 	if (ri->version->data == NULL) goto err;

 	ri->version->data[0]=0; /* version == 0 */

 	if (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x)))

 		goto err;

 	pktmp = X509_get_pubkey(x);

 	i=X509_REQ_set_pubkey(ret,pktmp);

 	EVP_PKEY_free(pktmp);

 	if (!i) goto err;

 	if (pkey != NULL)

 		{

 		if (!X509_REQ_sign(ret,pkey,md))

 			goto err;

 		}

 	return(ret);

 err:

 	X509_REQ_free(ret);

 	return(NULL);

 	}

 EXPORT_C EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)

 	{

 	if ((req == NULL) || (req->req_info == NULL))

 		return(NULL);

 	return(X509_PUBKEY_get(req->req_info->pubkey));

 	}

 EXPORT_C int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)

 	{

 	EVP_PKEY *xk=NULL;

 	int ok=0;

 	xk=X509_REQ_get_pubkey(x);

 	switch (EVP_PKEY_cmp(xk, k))

 		{

 	case 1:

 		ok=1;

 		break;

 	case 0:

 		X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);

 		break;

 	case -1:

 		X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);

 		break;

 	case -2:

 #ifndef OPENSSL_NO_EC

 		if (k->type == EVP_PKEY_EC)

 			{

 			X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB);

 			break;

 			}

 #endif

 #ifndef OPENSSL_NO_DH

 		if (k->type == EVP_PKEY_DH)

 			{

 			/* No idea */

 			X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY);

 			break;

 			}

 #endif

 	        X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE);

 		}

 	EVP_PKEY_free(xk);

 	return(ok);

 	}

 /* It seems several organisations had the same idea of including a list of

  * extensions in a certificate request. There are at least two OIDs that are

  * used and there may be more: so the list is configurable.

  */

 #ifndef EMULATOR

 static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef};

 static int *ext_nids = ext_nid_list;

 #else

 GET_STATIC_VAR_FROM_TLS(ext_nids,x509_req,int*)

 #define ext_nids (*GET_WSD_VAR_NAME(ext_nids,x509_req, s)())

 GET_STATIC_ARRAY_FROM_TLS(ext_nid_list,x509_req,int)

 #define ext_nid_list (GET_WSD_VAR_NAME(ext_nid_list,x509_req, s)())

 #endif

 EXPORT_C int X509_REQ_extension_nid(int req_nid)

 {

 	int i, nid;

 	for(i = 0; ; i++) {

 		nid = ext_nids[i];

 		if(nid == NID_undef) return 0;

 		else if (req_nid == nid) return 1;

 	}

 }

 EXPORT_C int *X509_REQ_get_extension_nids(void)

 {

 	return ext_nids;

 }

 EXPORT_C void X509_REQ_set_extension_nids(int *nids)

 {

 	ext_nids = nids;

 }

 EXPORT_C STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)

 	{

 	X509_ATTRIBUTE *attr;

 	ASN1_TYPE *ext = NULL;

 	int idx, *pnid;

 	const unsigned char *p;

 	if ((req == NULL) || (req->req_info == NULL) || !ext_nids)

 		return(NULL);

 	for (pnid = ext_nids; *pnid != NID_undef; pnid++)

 		{

 		idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);

 		if (idx == -1)

 			continue;

 		attr = X509_REQ_get_attr(req, idx);

 		if(attr->single) ext = attr->value.single;

 		else if(sk_ASN1_TYPE_num(attr->value.set))

 			ext = sk_ASN1_TYPE_value(attr->value.set, 0);

 		break;

 		}

 	if(!ext || (ext->type != V_ASN1_SEQUENCE))

 		return NULL;

 	p = ext->value.sequence->data;

 	return d2i_ASN1_SET_OF_X509_EXTENSION(NULL, &p,

 			ext->value.sequence->length,

 			d2i_X509_EXTENSION, X509_EXTENSION_free,

 			V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);

 }

 /* Add a STACK_OF extensions to a certificate request: allow alternative OIDs

  * in case we want to create a non standard one.

  */

 EXPORT_C int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,

 				int nid)

 {

 	unsigned char *p = NULL, *q;

 	long len;

 	ASN1_TYPE *at = NULL;

 	X509_ATTRIBUTE *attr = NULL;

 	if(!(at = ASN1_TYPE_new()) ||

 		!(at->value.sequence = ASN1_STRING_new())) goto err;

 	at->type = V_ASN1_SEQUENCE;

 	/* Generate encoding of extensions */

 	len = i2d_ASN1_SET_OF_X509_EXTENSION(exts, NULL, i2d_X509_EXTENSION,

 			V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE);

 	if(!(p = OPENSSL_malloc(len))) goto err;

 	q = p;

 	i2d_ASN1_SET_OF_X509_EXTENSION(exts, &q, i2d_X509_EXTENSION,

 			V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE);

 	at->value.sequence->data = p;

 	p = NULL;

 	at->value.sequence->length = len;

 	if(!(attr = X509_ATTRIBUTE_new())) goto err;

 	if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err;

 	if(!sk_ASN1_TYPE_push(attr->value.set, at)) goto err;

 	at = NULL;

 	attr->single = 0;

 	attr->object = OBJ_nid2obj(nid);

 	if (!req->req_info->attributes)

 		{

 		if (!(req->req_info->attributes = sk_X509_ATTRIBUTE_new_null()))

 			goto err;

 		}

 	if(!sk_X509_ATTRIBUTE_push(req->req_info->attributes, attr)) goto err;

 	return 1;

 	err:

 	if(p) OPENSSL_free(p);

 	X509_ATTRIBUTE_free(attr);

 	ASN1_TYPE_free(at);

 	return 0;

 }

 /* This is the normal usage: use the "official" OID */

 EXPORT_C int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts)

 {

 	return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);

 }

 /* Request attribute functions */

 EXPORT_C int X509_REQ_get_attr_count(const X509_REQ *req)

 {

 	return X509at_get_attr_count(req->req_info->attributes);

 }

 EXPORT_C int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid,

 			  int lastpos)

 {

 	return X509at_get_attr_by_NID(req->req_info->attributes, nid, lastpos);

 }

 EXPORT_C int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj,

 			  int lastpos)

 {

 	return X509at_get_attr_by_OBJ(req->req_info->attributes, obj, lastpos);

 }

 EXPORT_C X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc)

 {

 	return X509at_get_attr(req->req_info->attributes, loc);

 }

 EXPORT_C X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc)

 {

 	return X509at_delete_attr(req->req_info->attributes, loc);

 }

 EXPORT_C int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)

 {

 	if(X509at_add1_attr(&req->req_info->attributes, attr)) return 1;

 	return 0;

 }

 EXPORT_C int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,

 			const ASN1_OBJECT *obj, int type,

 			const unsigned char *bytes, int len)

 {

 	if(X509at_add1_attr_by_OBJ(&req->req_info->attributes, obj,

 				type, bytes, len)) return 1;

 	return 0;

 }

 EXPORT_C int X509_REQ_add1_attr_by_NID(X509_REQ *req,

 			int nid, int type,

 			const unsigned char *bytes, int len)

 {

 	if(X509at_add1_attr_by_NID(&req->req_info->attributes, nid,

 				type, bytes, len)) return 1;

 	return 0;

 }

 EXPORT_C int X509_REQ_add1_attr_by_txt(X509_REQ *req,

 			const char *attrname, int type,

 			const unsigned char *bytes, int len)

 {

 	if(X509at_add1_attr_by_txt(&req->req_info->attributes, attrname,

 				type, bytes, len)) return 1;

 	return 0;

 }