/* v3_cpols.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) 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).
*
*/
#include <stdio.h>
#include <string.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/obj.h>
#include <openssl/stack.h>
#include <openssl/x509v3.h>
#include "pcy_int.h"
/* 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);
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
};
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;
size_t i;
int ia5org;
pols = sk_POLICYINFO_new_null();
if (pols == NULL) {
OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
return NULL;
}
vals = X509V3_parse_list(value);
if (vals == NULL) {
OPENSSL_PUT_ERROR(X509V3, 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) {
OPENSSL_PUT_ERROR(X509V3, 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) {
OPENSSL_PUT_ERROR(X509V3, 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))) {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
X509V3_conf_err(cnf);
goto err;
}
pol = POLICYINFO_new();
if (pol == NULL) {
OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
ASN1_OBJECT_free(pobj);
goto err;
}
pol->policyid = pobj;
}
if (!sk_POLICYINFO_push(pols, pol)) {
POLICYINFO_free(pol);
OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
goto err;
}
}
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)
{
size_t 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))) {
OPENSSL_PUT_ERROR(X509V3, 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;
/* TODO(fork): const correctness */
qual->pqualid = (ASN1_OBJECT *)OBJ_nid2obj(NID_id_qt_cps);
if (qual->pqualid == NULL) {
OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR);
goto err;
}
qual->d.cpsuri = M_ASN1_IA5STRING_new();
if (qual->d.cpsuri == NULL) {
goto err;
}
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 != '@') {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_EXPECTED_A_SECTION_NAME);
X509V3_conf_err(cnf);
goto err;
}
unot = X509V3_get_section(ctx, cnf->value + 1);
if (!unot) {
OPENSSL_PUT_ERROR(X509V3, 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 {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION);
X509V3_conf_err(cnf);
goto err;
}
}
if (!pol->policyid) {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_POLICY_IDENTIFIER);
goto err;
}
return pol;
merr:
OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
err:
POLICYINFO_free(pol);
return NULL;
}
static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
STACK_OF(CONF_VALUE) *unot, int ia5org)
{
size_t i;
int ret;
CONF_VALUE *cnf;
USERNOTICE *not;
POLICYQUALINFO *qual;
if (!(qual = POLICYQUALINFO_new()))
goto merr;
/* TODO(fork): const correctness */
qual->pqualid = (ASN1_OBJECT *)OBJ_nid2obj(NID_id_qt_unotice);
if (qual->pqualid == NULL) {
OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR);
goto err;
}
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 (not->exptext == NULL)
goto merr;
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)) {
OPENSSL_PUT_ERROR(X509V3, 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 {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION);
X509V3_conf_err(cnf);
goto err;
}
}
if (not->noticeref &&
(!not->noticeref->noticenos || !not->noticeref->organization)) {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
goto err;
}
return qual;
merr:
OPENSSL_PUT_ERROR(X509V3, 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;
size_t 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))) {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBER);
goto err;
}
if (!sk_ASN1_INTEGER_push(nnums, aint))
goto merr;
}
return 1;
merr:
ASN1_INTEGER_free(aint);
OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
err:
return 0;
}
static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
BIO *out, int indent)
{
size_t 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;
size_t 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)
{
size_t 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, ", ");
if (num == NULL)
BIO_puts(out, "(null)");
else {
tmp = i2s_ASN1_INTEGER(NULL, num);
if (tmp == NULL)
return;
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);
}
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, "");
}