428 lines
13 KiB
C
428 lines
13 KiB
C
// Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 1999.
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// Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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#include <stdio.h>
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#include <string.h>
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#include <openssl/asn1.h>
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#include <openssl/asn1t.h>
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#include <openssl/conf.h>
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#include <openssl/err.h>
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#include <openssl/mem.h>
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#include <openssl/obj.h>
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#include <openssl/stack.h>
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#include <openssl/x509.h>
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#include "internal.h"
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// Certificate policies extension support: this one is a bit complex...
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static int i2r_certpol(const X509V3_EXT_METHOD *method, void *ext, BIO *out,
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int indent);
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static void *r2i_certpol(const X509V3_EXT_METHOD *method, const X509V3_CTX *ctx,
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const char *value);
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static void print_qualifiers(BIO *out, const STACK_OF(POLICYQUALINFO) *quals,
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int indent);
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static void print_notice(BIO *out, const USERNOTICE *notice, int indent);
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static POLICYINFO *policy_section(const X509V3_CTX *ctx,
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const STACK_OF(CONF_VALUE) *polstrs,
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int ia5org);
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static POLICYQUALINFO *notice_section(const X509V3_CTX *ctx,
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const STACK_OF(CONF_VALUE) *unot,
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int ia5org);
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static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums,
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const STACK_OF(CONF_VALUE) *nos);
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const X509V3_EXT_METHOD v3_cpols = {
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NID_certificate_policies,
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0,
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ASN1_ITEM_ref(CERTIFICATEPOLICIES),
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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i2r_certpol,
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r2i_certpol,
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NULL,
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};
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DECLARE_ASN1_ITEM(POLICYINFO)
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DECLARE_ASN1_ITEM(POLICYQUALINFO)
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DECLARE_ASN1_ITEM(USERNOTICE)
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DECLARE_ASN1_ITEM(NOTICEREF)
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ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) = ASN1_EX_TEMPLATE_TYPE(
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ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)
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ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES)
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IMPLEMENT_ASN1_FUNCTIONS_const(CERTIFICATEPOLICIES)
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ASN1_SEQUENCE(POLICYINFO) = {
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ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),
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ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO),
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} ASN1_SEQUENCE_END(POLICYINFO)
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IMPLEMENT_ASN1_ALLOC_FUNCTIONS(POLICYINFO)
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ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other,
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ASN1_ANY);
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ASN1_ADB(POLICYQUALINFO) = {
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ADB_ENTRY(NID_id_qt_cps,
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ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)),
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ADB_ENTRY(NID_id_qt_unotice,
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ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE)),
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} ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL);
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ASN1_SEQUENCE(POLICYQUALINFO) = {
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ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT),
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ASN1_ADB_OBJECT(POLICYQUALINFO),
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} ASN1_SEQUENCE_END(POLICYQUALINFO)
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IMPLEMENT_ASN1_ALLOC_FUNCTIONS(POLICYQUALINFO)
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ASN1_SEQUENCE(USERNOTICE) = {
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ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),
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ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT),
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} ASN1_SEQUENCE_END(USERNOTICE)
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IMPLEMENT_ASN1_ALLOC_FUNCTIONS(USERNOTICE)
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ASN1_SEQUENCE(NOTICEREF) = {
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ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),
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ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER),
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} ASN1_SEQUENCE_END(NOTICEREF)
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IMPLEMENT_ASN1_ALLOC_FUNCTIONS(NOTICEREF)
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static void *r2i_certpol(const X509V3_EXT_METHOD *method, const X509V3_CTX *ctx,
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const char *value) {
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STACK_OF(POLICYINFO) *pols = sk_POLICYINFO_new_null();
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if (pols == NULL) {
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return NULL;
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}
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STACK_OF(CONF_VALUE) *vals = X509V3_parse_list(value);
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if (vals == NULL) {
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OPENSSL_PUT_ERROR(X509V3, ERR_R_X509V3_LIB);
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goto err;
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}
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int ia5org = 0;
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for (size_t i = 0; i < sk_CONF_VALUE_num(vals); i++) {
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const CONF_VALUE *cnf = sk_CONF_VALUE_value(vals, i);
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if (cnf->value || !cnf->name) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_POLICY_IDENTIFIER);
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X509V3_conf_err(cnf);
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goto err;
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}
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POLICYINFO *pol;
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const char *pstr = cnf->name;
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if (!strcmp(pstr, "ia5org")) {
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ia5org = 1;
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continue;
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} else if (*pstr == '@') {
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const STACK_OF(CONF_VALUE) *polsect = X509V3_get_section(ctx, pstr + 1);
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if (!polsect) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SECTION);
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X509V3_conf_err(cnf);
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goto err;
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}
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pol = policy_section(ctx, polsect, ia5org);
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if (!pol) {
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goto err;
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}
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} else {
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ASN1_OBJECT *pobj = OBJ_txt2obj(cnf->name, 0);
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if (pobj == NULL) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
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X509V3_conf_err(cnf);
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goto err;
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}
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pol = POLICYINFO_new();
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if (pol == NULL) {
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ASN1_OBJECT_free(pobj);
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goto err;
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}
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pol->policyid = pobj;
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}
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if (!sk_POLICYINFO_push(pols, pol)) {
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POLICYINFO_free(pol);
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goto err;
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}
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}
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sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
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return pols;
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err:
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sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
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sk_POLICYINFO_pop_free(pols, POLICYINFO_free);
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return NULL;
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}
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static POLICYINFO *policy_section(const X509V3_CTX *ctx,
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const STACK_OF(CONF_VALUE) *polstrs,
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int ia5org) {
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POLICYINFO *pol;
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POLICYQUALINFO *qual;
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if (!(pol = POLICYINFO_new())) {
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goto err;
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}
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for (size_t i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
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const CONF_VALUE *cnf = sk_CONF_VALUE_value(polstrs, i);
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if (!strcmp(cnf->name, "policyIdentifier")) {
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ASN1_OBJECT *pobj;
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if (!(pobj = OBJ_txt2obj(cnf->value, 0))) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
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X509V3_conf_err(cnf);
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goto err;
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}
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pol->policyid = pobj;
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} else if (x509v3_conf_name_matches(cnf->name, "CPS")) {
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if (!pol->qualifiers) {
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pol->qualifiers = sk_POLICYQUALINFO_new_null();
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}
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if (!(qual = POLICYQUALINFO_new())) {
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goto err;
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}
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if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual)) {
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goto err;
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}
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qual->pqualid = OBJ_nid2obj(NID_id_qt_cps);
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if (qual->pqualid == NULL) {
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OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR);
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goto err;
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}
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qual->d.cpsuri = ASN1_IA5STRING_new();
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if (qual->d.cpsuri == NULL) {
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goto err;
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}
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if (!ASN1_STRING_set(qual->d.cpsuri, cnf->value, strlen(cnf->value))) {
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goto err;
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}
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} else if (x509v3_conf_name_matches(cnf->name, "userNotice")) {
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if (*cnf->value != '@') {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_EXPECTED_A_SECTION_NAME);
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X509V3_conf_err(cnf);
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goto err;
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}
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const STACK_OF(CONF_VALUE) *unot =
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X509V3_get_section(ctx, cnf->value + 1);
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if (!unot) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SECTION);
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X509V3_conf_err(cnf);
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goto err;
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}
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qual = notice_section(ctx, unot, ia5org);
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if (!qual) {
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goto err;
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}
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if (!pol->qualifiers) {
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pol->qualifiers = sk_POLICYQUALINFO_new_null();
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}
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if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual)) {
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goto err;
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}
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} else {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION);
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X509V3_conf_err(cnf);
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goto err;
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}
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}
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if (!pol->policyid) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_POLICY_IDENTIFIER);
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goto err;
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}
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return pol;
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err:
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POLICYINFO_free(pol);
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return NULL;
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}
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static POLICYQUALINFO *notice_section(const X509V3_CTX *ctx,
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const STACK_OF(CONF_VALUE) *unot,
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int ia5org) {
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USERNOTICE *notice;
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POLICYQUALINFO *qual;
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if (!(qual = POLICYQUALINFO_new())) {
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goto err;
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}
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qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice);
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if (qual->pqualid == NULL) {
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OPENSSL_PUT_ERROR(X509V3, ERR_R_INTERNAL_ERROR);
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goto err;
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}
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if (!(notice = USERNOTICE_new())) {
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goto err;
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}
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qual->d.usernotice = notice;
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for (size_t i = 0; i < sk_CONF_VALUE_num(unot); i++) {
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const CONF_VALUE *cnf = sk_CONF_VALUE_value(unot, i);
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if (!strcmp(cnf->name, "explicitText")) {
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notice->exptext = ASN1_VISIBLESTRING_new();
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if (notice->exptext == NULL) {
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goto err;
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}
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if (!ASN1_STRING_set(notice->exptext, cnf->value, strlen(cnf->value))) {
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goto err;
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}
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} else if (!strcmp(cnf->name, "organization")) {
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NOTICEREF *nref;
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if (!notice->noticeref) {
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if (!(nref = NOTICEREF_new())) {
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goto err;
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}
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notice->noticeref = nref;
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} else {
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nref = notice->noticeref;
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}
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if (ia5org) {
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nref->organization->type = V_ASN1_IA5STRING;
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} else {
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nref->organization->type = V_ASN1_VISIBLESTRING;
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}
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if (!ASN1_STRING_set(nref->organization, cnf->value,
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strlen(cnf->value))) {
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goto err;
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}
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} else if (!strcmp(cnf->name, "noticeNumbers")) {
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NOTICEREF *nref;
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STACK_OF(CONF_VALUE) *nos;
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if (!notice->noticeref) {
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if (!(nref = NOTICEREF_new())) {
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goto err;
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}
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notice->noticeref = nref;
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} else {
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nref = notice->noticeref;
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}
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nos = X509V3_parse_list(cnf->value);
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if (!nos || !sk_CONF_VALUE_num(nos)) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBERS);
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X509V3_conf_err(cnf);
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goto err;
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}
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int ret = nref_nos(nref->noticenos, nos);
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sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
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if (!ret) {
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goto err;
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}
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} else {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OPTION);
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X509V3_conf_err(cnf);
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goto err;
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}
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}
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if (notice->noticeref &&
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(!notice->noticeref->noticenos || !notice->noticeref->organization)) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
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goto err;
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}
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return qual;
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err:
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POLICYQUALINFO_free(qual);
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return NULL;
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}
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static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums,
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const STACK_OF(CONF_VALUE) *nos) {
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for (size_t i = 0; i < sk_CONF_VALUE_num(nos); i++) {
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const CONF_VALUE *cnf = sk_CONF_VALUE_value(nos, i);
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ASN1_INTEGER *aint = s2i_ASN1_INTEGER(NULL, cnf->name);
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if (aint == NULL) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NUMBER);
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return 0;
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}
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if (!sk_ASN1_INTEGER_push(nnums, aint)) {
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ASN1_INTEGER_free(aint);
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return 0;
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}
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}
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return 1;
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}
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static int i2r_certpol(const X509V3_EXT_METHOD *method, void *ext, BIO *out,
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int indent) {
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const STACK_OF(POLICYINFO) *pol = ext;
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// First print out the policy OIDs
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for (size_t i = 0; i < sk_POLICYINFO_num(pol); i++) {
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const POLICYINFO *pinfo = sk_POLICYINFO_value(pol, i);
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BIO_printf(out, "%*sPolicy: ", indent, "");
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i2a_ASN1_OBJECT(out, pinfo->policyid);
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BIO_puts(out, "\n");
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if (pinfo->qualifiers) {
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print_qualifiers(out, pinfo->qualifiers, indent + 2);
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}
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}
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return 1;
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}
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static void print_qualifiers(BIO *out, const STACK_OF(POLICYQUALINFO) *quals,
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int indent) {
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for (size_t i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
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const POLICYQUALINFO *qualinfo = sk_POLICYQUALINFO_value(quals, i);
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switch (OBJ_obj2nid(qualinfo->pqualid)) {
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case NID_id_qt_cps:
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BIO_printf(out, "%*sCPS: %.*s\n", indent, "",
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qualinfo->d.cpsuri->length, qualinfo->d.cpsuri->data);
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break;
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case NID_id_qt_unotice:
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BIO_printf(out, "%*sUser Notice:\n", indent, "");
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print_notice(out, qualinfo->d.usernotice, indent + 2);
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break;
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default:
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BIO_printf(out, "%*sUnknown Qualifier: ", indent + 2, "");
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i2a_ASN1_OBJECT(out, qualinfo->pqualid);
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BIO_puts(out, "\n");
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break;
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}
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}
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}
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static void print_notice(BIO *out, const USERNOTICE *notice, int indent) {
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if (notice->noticeref) {
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NOTICEREF *ref;
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ref = notice->noticeref;
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BIO_printf(out, "%*sOrganization: %.*s\n", indent, "",
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ref->organization->length, ref->organization->data);
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BIO_printf(out, "%*sNumber%s: ", indent, "",
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sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
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for (size_t i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
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ASN1_INTEGER *num;
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char *tmp;
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num = sk_ASN1_INTEGER_value(ref->noticenos, i);
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if (i) {
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BIO_puts(out, ", ");
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}
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if (num == NULL) {
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BIO_puts(out, "(null)");
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} else {
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tmp = i2s_ASN1_INTEGER(NULL, num);
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if (tmp == NULL) {
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return;
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}
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BIO_puts(out, tmp);
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OPENSSL_free(tmp);
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}
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}
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BIO_puts(out, "\n");
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}
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if (notice->exptext) {
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BIO_printf(out, "%*sExplicit Text: %.*s\n", indent, "",
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notice->exptext->length, notice->exptext->data);
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}
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}
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