/* v3_cpols.c */

/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

 * project 1999.

 */

/* ====================================================================

 * Copyright (c) 1999-2004 The OpenSSL Project.  All rights reserved.

 *

 * 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 above 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 acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    licensing@OpenSSL.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED 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 OpenSSL PROJECT OR

 * ITS 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.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

/*

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

 */

#include <stdio.h>

#include "cryptlib.h"

#include <openssl/conf.h>

#include <openssl/asn1.h>

#include <openssl/asn1t.h>

#include <openssl/x509v3.h>

#include "pcy_int.h"

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

#include "libcrypto_wsd_macros.h"

#include "libcrypto_wsd.h"

#endif

/* Certificate policies extension support: this one is a bit complex... */

static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol, BIO *out, int indent);

static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, char *value);

static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals, int indent);

static void print_notice(BIO *out, USERNOTICE *notice, int indent);

static POLICYINFO *policy_section(X509V3_CTX *ctx,

				 STACK_OF(CONF_VALUE) *polstrs, int ia5org);

static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,

					STACK_OF(CONF_VALUE) *unot, int ia5org);

static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos);

#ifndef EMULATOR

X509V3_EXT_METHOD v3_cpols = {

NID_certificate_policies, 0,ASN1_ITEM_ref(CERTIFICATEPOLICIES),

0,0,0,0,

0,0,

0,0,

(X509V3_EXT_I2R)i2r_certpol,

(X509V3_EXT_R2I)r2i_certpol,

NULL

};

#else

const X509V3_EXT_METHOD v3_cpols = {

NID_certificate_policies, 0,ASN1_ITEM_ref(CERTIFICATEPOLICIES),

0,0,0,0,

0,0,

0,0,

(X509V3_EXT_I2R)i2r_certpol,

(X509V3_EXT_R2I)r2i_certpol,

NULL

};

#endif

ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) = 

	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)

ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES)

IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)

ASN1_SEQUENCE(POLICYINFO) = {

	ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),

	ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO)

} ASN1_SEQUENCE_END(POLICYINFO)

IMPLEMENT_ASN1_FUNCTIONS(POLICYINFO)

ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, ASN1_ANY);

ASN1_ADB(POLICYQUALINFO) = {

	ADB_ENTRY(NID_id_qt_cps, ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)),

	ADB_ENTRY(NID_id_qt_unotice, ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE))

} ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL);

ASN1_SEQUENCE(POLICYQUALINFO) = {

	ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT),

	ASN1_ADB_OBJECT(POLICYQUALINFO)

} ASN1_SEQUENCE_END(POLICYQUALINFO)

IMPLEMENT_ASN1_FUNCTIONS(POLICYQUALINFO)

ASN1_SEQUENCE(USERNOTICE) = {

	ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),

	ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT)

} ASN1_SEQUENCE_END(USERNOTICE)

IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE)

ASN1_SEQUENCE(NOTICEREF) = {

	ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),

	ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER)

} ASN1_SEQUENCE_END(NOTICEREF)

IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF)

static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,

		X509V3_CTX *ctx, char *value)

{

	STACK_OF(POLICYINFO) *pols = NULL;

	char *pstr;

	POLICYINFO *pol;

	ASN1_OBJECT *pobj;

	STACK_OF(CONF_VALUE) *vals;

	CONF_VALUE *cnf;

	int i, ia5org;

	pols = sk_POLICYINFO_new_null();

	if (pols == NULL) {

		X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);

		return NULL;

	}

	vals =  X509V3_parse_list(value);

	if (vals == NULL) {

		X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_X509V3_LIB);

		goto err;

	}

	ia5org = 0;

	for(i = 0; i < sk_CONF_VALUE_num(vals); i++) {

		cnf = sk_CONF_VALUE_value(vals, i);

		if(cnf->value || !cnf->name ) {

			X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_POLICY_IDENTIFIER);

			X509V3_conf_err(cnf);

			goto err;

		}

		pstr = cnf->name;

		if(!strcmp(pstr,"ia5org")) {

			ia5org = 1;

			continue;

		} else if(*pstr == '@') {

			STACK_OF(CONF_VALUE) *polsect;

			polsect = X509V3_get_section(ctx, pstr + 1);

			if(!polsect) {

				X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_SECTION);

				X509V3_conf_err(cnf);

				goto err;

			}

			pol = policy_section(ctx, polsect, ia5org);

			X509V3_section_free(ctx, polsect);

			if(!pol) goto err;

		} else {

			if(!(pobj = OBJ_txt2obj(cnf->name, 0))) {

				X509V3err(X509V3_F_R2I_CERTPOL,X509V3_R_INVALID_OBJECT_IDENTIFIER);

				X509V3_conf_err(cnf);

				goto err;

			}

			pol = POLICYINFO_new();

			pol->policyid = pobj;

		}

		sk_POLICYINFO_push(pols, pol);

	}

	sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);

	return pols;

	err:

	sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);

	sk_POLICYINFO_pop_free(pols, POLICYINFO_free);

	return NULL;

}

static POLICYINFO *policy_section(X509V3_CTX *ctx,

				STACK_OF(CONF_VALUE) *polstrs, int ia5org)

{

	int i;

	CONF_VALUE *cnf;

	POLICYINFO *pol;

	POLICYQUALINFO *qual;

	if(!(pol = POLICYINFO_new())) goto merr;

	for(i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {

		cnf = sk_CONF_VALUE_value(polstrs, i);

		if(!strcmp(cnf->name, "policyIdentifier")) {

			ASN1_OBJECT *pobj;

			if(!(pobj = OBJ_txt2obj(cnf->value, 0))) {

				X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_OBJECT_IDENTIFIER);

				X509V3_conf_err(cnf);

				goto err;

			}

			pol->policyid = pobj;

		} else if(!name_cmp(cnf->name, "CPS")) {

			if(!pol->qualifiers) pol->qualifiers =

						 sk_POLICYQUALINFO_new_null();

			if(!(qual = POLICYQUALINFO_new())) goto merr;

			if(!sk_POLICYQUALINFO_push(pol->qualifiers, qual))

								 goto merr;

			qual->pqualid = OBJ_nid2obj(NID_id_qt_cps);

			qual->d.cpsuri = M_ASN1_IA5STRING_new();

			if(!ASN1_STRING_set(qual->d.cpsuri, cnf->value,

						 strlen(cnf->value))) goto merr;

		} else if(!name_cmp(cnf->name, "userNotice")) {

			STACK_OF(CONF_VALUE) *unot;

			if(*cnf->value != '@') {

				X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_EXPECTED_A_SECTION_NAME);

				X509V3_conf_err(cnf);

				goto err;

			}

			unot = X509V3_get_section(ctx, cnf->value + 1);

			if(!unot) {

				X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_SECTION);

				X509V3_conf_err(cnf);

				goto err;

			}

			qual = notice_section(ctx, unot, ia5org);

			X509V3_section_free(ctx, unot);

			if(!qual) goto err;

			if(!pol->qualifiers) pol->qualifiers =

						 sk_POLICYQUALINFO_new_null();

			if(!sk_POLICYQUALINFO_push(pol->qualifiers, qual))

								 goto merr;

		} else {

			X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_INVALID_OPTION);

			X509V3_conf_err(cnf);

			goto err;

		}

	}

	if(!pol->policyid) {

		X509V3err(X509V3_F_POLICY_SECTION,X509V3_R_NO_POLICY_IDENTIFIER);

		goto err;

	}

	return pol;

	merr:

	X509V3err(X509V3_F_POLICY_SECTION,ERR_R_MALLOC_FAILURE);

	err:

	POLICYINFO_free(pol);

	return NULL;

}

static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,

					STACK_OF(CONF_VALUE) *unot, int ia5org)

{

	int i, ret;

	CONF_VALUE *cnf;

	USERNOTICE *not;

	POLICYQUALINFO *qual;

	if(!(qual = POLICYQUALINFO_new())) goto merr;

	qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice);

	if(!(not = USERNOTICE_new())) goto merr;

	qual->d.usernotice = not;

	for(i = 0; i < sk_CONF_VALUE_num(unot); i++) {

		cnf = sk_CONF_VALUE_value(unot, i);

		if(!strcmp(cnf->name, "explicitText")) {

			not->exptext = M_ASN1_VISIBLESTRING_new();

			if(!ASN1_STRING_set(not->exptext, cnf->value,

						 strlen(cnf->value))) goto merr;

		} else if(!strcmp(cnf->name, "organization")) {

			NOTICEREF *nref;

			if(!not->noticeref) {

				if(!(nref = NOTICEREF_new())) goto merr;

				not->noticeref = nref;

			} else nref = not->noticeref;

			if(ia5org) nref->organization->type = V_ASN1_IA5STRING;

			else nref->organization->type = V_ASN1_VISIBLESTRING;

			if(!ASN1_STRING_set(nref->organization, cnf->value,

						 strlen(cnf->value))) goto merr;

		} else if(!strcmp(cnf->name, "noticeNumbers")) {

			NOTICEREF *nref;

			STACK_OF(CONF_VALUE) *nos;

			if(!not->noticeref) {

				if(!(nref = NOTICEREF_new())) goto merr;

				not->noticeref = nref;

			} else nref = not->noticeref;

			nos = X509V3_parse_list(cnf->value);

			if(!nos || !sk_CONF_VALUE_num(nos)) {

				X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_INVALID_NUMBERS);

				X509V3_conf_err(cnf);

				goto err;

			}

			ret = nref_nos(nref->noticenos, nos);

			sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);

			if (!ret)

				goto err;

		} else {

			X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_INVALID_OPTION);

			X509V3_conf_err(cnf);

			goto err;

		}

	}

	if(not->noticeref && 

	      (!not->noticeref->noticenos || !not->noticeref->organization)) {

			X509V3err(X509V3_F_NOTICE_SECTION,X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);

			goto err;

	}

	return qual;

	merr:

	X509V3err(X509V3_F_NOTICE_SECTION,ERR_R_MALLOC_FAILURE);

	err:

	POLICYQUALINFO_free(qual);

	return NULL;

}

static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos)

{

	CONF_VALUE *cnf;

	ASN1_INTEGER *aint;

	int i;

	for(i = 0; i < sk_CONF_VALUE_num(nos); i++) {

		cnf = sk_CONF_VALUE_value(nos, i);

		if(!(aint = s2i_ASN1_INTEGER(NULL, cnf->name))) {

			X509V3err(X509V3_F_NREF_NOS,X509V3_R_INVALID_NUMBER);

			goto err;

		}

		if(!sk_ASN1_INTEGER_push(nnums, aint)) goto merr;

	}

	return 1;

	merr:

	X509V3err(X509V3_F_NREF_NOS,ERR_R_MALLOC_FAILURE);

	err:

	sk_ASN1_INTEGER_pop_free(nnums, ASN1_STRING_free);

	return 0;

}

static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,

		BIO *out, int indent)

{

	int i;

	POLICYINFO *pinfo;

	/* First print out the policy OIDs */

	for(i = 0; i < sk_POLICYINFO_num(pol); i++) {

		pinfo = sk_POLICYINFO_value(pol, i);

		BIO_printf(out, "%*sPolicy: ", indent, "");

		i2a_ASN1_OBJECT(out, pinfo->policyid);

		BIO_puts(out, "\n");

		if(pinfo->qualifiers)

			 print_qualifiers(out, pinfo->qualifiers, indent + 2);

	}

	return 1;

}

static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,

		int indent)

{

	POLICYQUALINFO *qualinfo;

	int i;

	for(i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {

		qualinfo = sk_POLICYQUALINFO_value(quals, i);

		switch(OBJ_obj2nid(qualinfo->pqualid))

		{

			case NID_id_qt_cps:

			BIO_printf(out, "%*sCPS: %s\n", indent, "",

						qualinfo->d.cpsuri->data);

			break;

			case NID_id_qt_unotice:

			BIO_printf(out, "%*sUser Notice:\n", indent, "");

			print_notice(out, qualinfo->d.usernotice, indent + 2);

			break;

			default:

			BIO_printf(out, "%*sUnknown Qualifier: ",

							 indent + 2, "");

			i2a_ASN1_OBJECT(out, qualinfo->pqualid);

			BIO_puts(out, "\n");

			break;

		}

	}

}

static void print_notice(BIO *out, USERNOTICE *notice, int indent)

{

	int i;

	if(notice->noticeref) {

		NOTICEREF *ref;

		ref = notice->noticeref;

		BIO_printf(out, "%*sOrganization: %s\n", indent, "",

						 ref->organization->data);

		BIO_printf(out, "%*sNumber%s: ", indent, "",

			   sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");

		for(i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {

			ASN1_INTEGER *num;

			char *tmp;

			num = sk_ASN1_INTEGER_value(ref->noticenos, i);

			if(i) BIO_puts(out, ", ");

			tmp = i2s_ASN1_INTEGER(NULL, num);

			BIO_puts(out, tmp);

			OPENSSL_free(tmp);

		}

		BIO_puts(out, "\n");

	}

	if(notice->exptext)

		BIO_printf(out, "%*sExplicit Text: %s\n", indent, "",

							 notice->exptext->data);

}

EXPORT_C void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent)

	{

	const X509_POLICY_DATA *dat = node->data;

	BIO_printf(out, "%*sPolicy: ", indent, "");

	i2a_ASN1_OBJECT(out, dat->valid_policy);

	BIO_puts(out, "\n");

	BIO_printf(out, "%*s%s\n", indent + 2, "",

		node_data_critical(dat) ? "Critical" : "Non Critical");

	if (dat->qualifier_set)

		print_qualifiers(out, dat->qualifier_set, indent + 2);

	else

		BIO_printf(out, "%*sNo Qualifiers\n", indent + 2, "");

	}