/* 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;

}