constraints: Add permitted/excludedNameConstraints check

This commit is contained in:
Martin Willi 2014-10-14 16:29:28 +02:00
parent 7e80995c59
commit a6c8647eca
3 changed files with 400 additions and 0 deletions

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@ -41,6 +41,7 @@ tests_SOURCES = tests.h tests.c \
suites/test_ecdsa.c \
suites/test_rsa.c \
suites/test_certpolicy.c \
suites/test_certnames.c \
suites/test_host.c \
suites/test_hasher.c \
suites/test_crypter.c \

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@ -0,0 +1,398 @@
/*
* Copyright (C) 2014 Martin Willi
* Copyright (C) 2014 revosec AG
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "test_suite.h"
#include <asn1/asn1.h>
#include <credentials/sets/mem_cred.h>
#include <credentials/certificates/x509.h>
/**
* RSA private key, so we don't have to generate one
*/
static char keydata[] = {
0x30,0x82,0x02,0x5e,0x02,0x01,0x00,0x02,0x81,0x81,0x00,0xb1,0x9b,0xd4,0x51,0x24,
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0x88,0xc3,0x4f,0x59,0xb5,0x8e,0xa3,0x81,0xd9,0x88,0x1f,0xc0,0x38,0xbc,0xc8,0x93,
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0xba,0xd0,0x32,0x49,0x02,0x41,0x00,0xdb,0x77,0xf1,0xdd,0x1a,0x12,0xc5,0xfb,0x2b,
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0x40,0x97,0x82,0x0e,0xd9,0x09,0x9f,0x4a,0xa6,0x75,0xe5,0x66,0xe4,0x9c,0x59,0xd9,
0x3a,0xe6,0xf7,0xd8,0x8b,0x68,0xb0,0x21,0x52,0x31,0xb3,0x4a,0xa0,0x2c,0x41,0xd7,
0x1f,0x7b,0xe2,0x0f,0x15,0xc9,0x6e,0xc0,0xe5,0x1d,0x02,0x41,0x00,0x9c,0x1a,0x61,
0x9f,0x89,0xc7,0x26,0xa9,0x33,0xba,0xe2,0xa0,0x6d,0xd3,0x15,0x77,0xcb,0x6f,0xef,
0xad,0x12,0x0a,0x75,0xd9,0x4f,0xcf,0x4d,0x05,0x2a,0x9d,0xd1,0x2c,0xcb,0xcd,0xe6,
0xa0,0xe9,0x20,0x39,0xb6,0x5a,0xf3,0xba,0x99,0xf4,0xe3,0xcb,0x5d,0x8d,0x00,0x08,
0x57,0x18,0xb9,0x1a,0xca,0xbd,0xe3,0x99,0xb1,0x1f,0xe9,0x18,0xcb,0x02,0x40,0x65,
0x35,0x1b,0x48,0x6b,0x86,0x60,0x43,0x68,0xb6,0xe6,0xfb,0xdd,0xd7,0xed,0x1e,0x0e,
0x89,0xef,0x88,0xe0,0x94,0x68,0x39,0x9b,0xbf,0xc5,0x27,0x7e,0x39,0xe9,0xb8,0x0e,
0xa9,0x85,0x65,0x1c,0x3f,0x93,0x16,0xe2,0x5d,0x57,0x3d,0x7d,0x4d,0xc9,0xe9,0x9d,
0xbd,0x07,0x22,0x97,0xc7,0x90,0x09,0xe5,0x15,0x99,0x7f,0x1e,0x2b,0xfd,0xc1,0x02,
0x41,0x00,0x92,0x78,0xfe,0x04,0xa0,0x53,0xed,0x36,0x97,0xbd,0x16,0xce,0x91,0x9b,
0xbe,0x1f,0x8e,0x40,0x00,0x99,0x0c,0x49,0x15,0xca,0x59,0xd3,0xe3,0xd4,0xeb,0x71,
0xcf,0xda,0xd7,0xc8,0x99,0x74,0xfc,0x6b,0xe8,0xfd,0xe5,0xe0,0x49,0x61,0xcb,0xda,
0xe3,0xe7,0x8b,0x72,0xb5,0x69,0x73,0x2b,0x8b,0x54,0xcb,0xd9,0x48,0x6d,0x61,0x02,
0x49,0xe8,
};
/**
* Issue a certificate with permitted/excluded name constraints
*/
static certificate_t* create_cert(certificate_t *ca, char *subject, char *san,
x509_flag_t flags, identification_t *permitted,
identification_t *excluded)
{
private_key_t *privkey;
public_key_t *pubkey;
certificate_t *cert;
identification_t *id;
linked_list_t *plist, *elist, *sans;
privkey = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
BUILD_BLOB_ASN1_DER, chunk_from_thing(keydata),
BUILD_END);
ck_assert(privkey);
pubkey = privkey->get_public_key(privkey);
ck_assert(pubkey);
plist = linked_list_create();
if (permitted)
{
plist->insert_last(plist, permitted);
}
elist = linked_list_create();
if (excluded)
{
elist->insert_last(elist, excluded);
}
sans = linked_list_create();
if (san)
{
id = identification_create_from_string(san);
sans->insert_last(sans, id);
}
id = identification_create_from_string(subject);
cert = lib->creds->create(lib->creds, CRED_CERTIFICATE, CERT_X509,
BUILD_SIGNING_KEY, privkey,
BUILD_PUBLIC_KEY, pubkey,
BUILD_SUBJECT, id,
BUILD_X509_FLAG, flags,
BUILD_SIGNING_CERT, ca,
BUILD_SUBJECT_ALTNAMES, sans,
BUILD_PERMITTED_NAME_CONSTRAINTS, plist,
BUILD_EXCLUDED_NAME_CONSTRAINTS, elist,
BUILD_END);
ck_assert(cert);
id->destroy(id);
sans->destroy_offset(sans, offsetof(identification_t, destroy));
plist->destroy_offset(plist, offsetof(identification_t, destroy));
elist->destroy_offset(elist, offsetof(identification_t, destroy));
privkey->destroy(privkey);
pubkey->destroy(pubkey);
return cert;
}
/**
* Check if a certificate with given subject has a valid trustchain
*/
static bool check_trust(identification_t *subject)
{
enumerator_t *certs;
certificate_t *cert;
bool trusted;
certs = lib->credmgr->create_trusted_enumerator(lib->credmgr, KEY_ANY,
subject, FALSE);
trusted = certs->enumerate(certs, &cert, NULL);
certs->destroy(certs);
return trusted;
}
static mem_cred_t *creds;
START_SETUP(setup)
{
creds = mem_cred_create();
lib->credmgr->add_set(lib->credmgr, &creds->set);
}
END_SETUP
START_TEARDOWN(teardown)
{
lib->credmgr->remove_set(lib->credmgr, &creds->set);
creds->destroy(creds);
lib->credmgr->flush_cache(lib->credmgr, CERT_ANY);
}
END_TEARDOWN
static struct {
char *constraint;
char *subject;
bool good;
} permitted_dn[] = {
{ "C=CH, O=strongSwan", "C=CH, O=strongSwan, CN=tester", TRUE },
{ "C=CH, O=strongSwan", "C=CH, O=strong", FALSE },
{ "C=CH, O=strongSwan", "C=CH, O=strong, CN=tester", FALSE },
{ "C=CH, O=strongSwan", "C=CH, O=another, CN=tester", FALSE },
{ "C=CH, O=strongSwan", "C=CH, CN=tester, O=strongSwan", FALSE },
};
START_TEST(test_permitted_dn)
{
certificate_t *ca, *im, *sj;
identification_t *id;
id = identification_create_from_string(permitted_dn[_i].constraint);
ca = create_cert(NULL, "C=CH, O=strongSwan, CN=CA", NULL, X509_CA, id, NULL);
id = identification_create_from_string(permitted_dn[_i].constraint);
im = create_cert(ca, "C=CH, O=strongSwan, CN=IM", NULL, X509_CA, id, NULL);
sj = create_cert(im, permitted_dn[_i].subject, NULL, 0, NULL, NULL);
creds->add_cert(creds, TRUE, ca);
creds->add_cert(creds, FALSE, im);
creds->add_cert(creds, FALSE, sj);
ck_assert(check_trust(sj->get_subject(sj)) == permitted_dn[_i].good);
}
END_TEST
static struct {
id_type_t ctype;
char *cdata;
char *subject;
bool good;
} permitted_san[] = {
{ ID_FQDN, ".strongswan.org", "test.strongswan.org", TRUE },
{ ID_FQDN, "strongswan.org", "test.strongswan.org", TRUE },
{ ID_FQDN, "a.b.c.strongswan.org", "d.a.b.c.strongswan.org", TRUE },
{ ID_FQDN, "a.b.c.strongswan.org", "a.b.c.d.strongswan.org", FALSE },
{ ID_FQDN, "strongswan.org", "strongswan.org.com", FALSE },
{ ID_FQDN, ".strongswan.org", "strongswan.org", FALSE },
{ ID_FQDN, "strongswan.org", "nostrongswan.org", FALSE },
{ ID_FQDN, "strongswan.org", "swan.org", FALSE },
{ ID_FQDN, "strongswan.org", "swan.org", FALSE },
{ ID_RFC822_ADDR, "tester@strongswan.org", "tester@strongswan.org", TRUE },
{ ID_RFC822_ADDR, "tester@strongswan.org", "atester@strongswan.org", FALSE },
{ ID_RFC822_ADDR, "strongswan.org", "tester@strongswan.org", TRUE },
{ ID_RFC822_ADDR, "strongswan.org", "tester@test.strongswan.org", FALSE },
{ ID_RFC822_ADDR, ".strongswan.org", "tester@test.strongswan.org", TRUE },
{ ID_RFC822_ADDR, ".strongswan.org", "tester@strongswan.org", FALSE },
};
START_TEST(test_permitted_san)
{
certificate_t *ca, *sj;
identification_t *id;
id = identification_create_from_encoding(permitted_san[_i].ctype,
chunk_from_str(permitted_san[_i].cdata));
ca = create_cert(NULL, "CN=CA", NULL, X509_CA, id, NULL);
sj = create_cert(ca, "CN=SJ", permitted_san[_i].subject, 0, NULL, NULL);
creds->add_cert(creds, TRUE, ca);
creds->add_cert(creds, FALSE, sj);
ck_assert(check_trust(sj->get_subject(sj)) == permitted_san[_i].good);
}
END_TEST
static struct {
char *constraint;
char *subject;
bool good;
} excluded_dn[] = {
{ "C=CH, O=another", "C=CH, O=strongSwan, CN=tester", TRUE },
{ "C=CH, O=another", "C=CH, O=anot", TRUE },
{ "C=CH, O=another", "C=CH, O=anot, CN=tester", TRUE },
{ "C=CH, O=another", "C=CH, O=another, CN=tester", FALSE },
{ "C=CH, O=another", "C=CH, CN=tester, O=another", TRUE },
};
START_TEST(test_excluded_dn)
{
certificate_t *ca, *im, *sj;
identification_t *id;
id = identification_create_from_string(excluded_dn[_i].constraint);
ca = create_cert(NULL, "C=CH, O=strongSwan, CN=CA", NULL, X509_CA, NULL, id);
id = identification_create_from_string(excluded_dn[_i].constraint);
im = create_cert(ca, "C=CH, O=strongSwan, CN=IM", NULL, X509_CA, NULL, id);
sj = create_cert(im, excluded_dn[_i].subject, NULL, 0, NULL, NULL);
creds->add_cert(creds, TRUE, ca);
creds->add_cert(creds, FALSE, im);
creds->add_cert(creds, FALSE, sj);
ck_assert(check_trust(sj->get_subject(sj)) == excluded_dn[_i].good);
}
END_TEST
static struct {
id_type_t ctype;
char *cdata;
char *subject;
bool good;
} excluded_san[] = {
{ ID_FQDN, ".strongswan.org", "test.strongswan.org", FALSE },
{ ID_FQDN, "strongswan.org", "test.strongswan.org", FALSE },
{ ID_FQDN, "a.b.c.strongswan.org", "d.a.b.c.strongswan.org", FALSE },
{ ID_FQDN, "a.b.c.strongswan.org", "a.b.c.d.strongswan.org", TRUE },
{ ID_FQDN, "strongswan.org", "strongswan.org.com", TRUE },
{ ID_FQDN, ".strongswan.org", "strongswan.org", TRUE },
{ ID_FQDN, "strongswan.org", "nostrongswan.org", TRUE },
{ ID_FQDN, "strongswan.org", "swan.org", TRUE },
{ ID_FQDN, "strongswan.org", "swan.org", TRUE },
{ ID_RFC822_ADDR, "tester@strongswan.org", "tester@strongswan.org", FALSE },
{ ID_RFC822_ADDR, "tester@strongswan.org", "atester@strongswan.org", TRUE },
{ ID_RFC822_ADDR, "strongswan.org", "tester@strongswan.org", FALSE },
{ ID_RFC822_ADDR, "strongswan.org", "tester@test.strongswan.org", TRUE },
{ ID_RFC822_ADDR, ".strongswan.org", "tester@test.strongswan.org", FALSE },
{ ID_RFC822_ADDR, ".strongswan.org", "tester@strongswan.org", TRUE },
};
START_TEST(test_excluded_san)
{
certificate_t *ca, *sj;
identification_t *id;
id = identification_create_from_encoding(excluded_san[_i].ctype,
chunk_from_str(excluded_san[_i].cdata));
ca = create_cert(NULL, "CN=CA", NULL, X509_CA, NULL, id);
sj = create_cert(ca, "CN=SJ", excluded_san[_i].subject, 0, NULL, NULL);
creds->add_cert(creds, TRUE, ca);
creds->add_cert(creds, FALSE, sj);
ck_assert(check_trust(sj->get_subject(sj)) == excluded_san[_i].good);
}
END_TEST
static struct {
char *caconst;
char *imconst;
char *subject;
bool good;
} permitted_dninh[] = {
{ "C=CH", "C=CH, O=strongSwan", "C=CH, O=strongSwan, CN=tester", TRUE },
{ "C=CH", "C=DE, O=strongSwan", "C=CH, O=strongSwan, CN=tester", FALSE },
{ "C=CH, O=strongSwan", "C=CH", "C=CH", FALSE },
};
START_TEST(test_permitted_dninh)
{
certificate_t *ca, *im, *sj;
identification_t *id;
id = identification_create_from_string(permitted_dninh[_i].caconst);
ca = create_cert(NULL, "C=CH, O=strongSwan, CN=CA", NULL, X509_CA, id, NULL);
id = identification_create_from_string(permitted_dninh[_i].imconst);
im = create_cert(ca, "C=CH, O=strongSwan, CN=IM", NULL, X509_CA, id, NULL);
sj = create_cert(im, permitted_dninh[_i].subject, NULL, 0, NULL, NULL);
creds->add_cert(creds, TRUE, ca);
creds->add_cert(creds, FALSE, im);
creds->add_cert(creds, FALSE, sj);
ck_assert(check_trust(sj->get_subject(sj)) == permitted_dninh[_i].good);
}
END_TEST
static struct {
char *caconst;
char *imconst;
char *subject;
bool good;
} excluded_dninh[] = {
{ "C=CH, O=strongSwan", "C=CH", "C=DE", TRUE },
{ "C=CH, O=strongSwan", "C=DE", "C=CH", FALSE },
{ "C=CH", "C=CH, O=strongSwan", "C=CH, O=strongSwan, CN=tester", FALSE },
};
START_TEST(test_excluded_dninh)
{
certificate_t *ca, *im, *sj;
identification_t *id;
id = identification_create_from_string(excluded_dninh[_i].caconst);
ca = create_cert(NULL, "C=CH, O=strongSwan, CN=CA", NULL, X509_CA, NULL, id);
id = identification_create_from_string(excluded_dninh[_i].imconst);
im = create_cert(ca, "C=DE, CN=IM", NULL, X509_CA, NULL, id);
sj = create_cert(im, excluded_dninh[_i].subject, NULL, 0, NULL, NULL);
creds->add_cert(creds, TRUE, ca);
creds->add_cert(creds, FALSE, im);
creds->add_cert(creds, FALSE, sj);
ck_assert(check_trust(sj->get_subject(sj)) == excluded_dninh[_i].good);
}
END_TEST
Suite *certnames_suite_create()
{
Suite *s;
TCase *tc;
s = suite_create("certnames");
tc = tcase_create("permitted DN name constraints");
tcase_add_checked_fixture(tc, setup, teardown);
tcase_add_loop_test(tc, test_permitted_dn, 0, countof(permitted_dn));
suite_add_tcase(s, tc);
tc = tcase_create("permitted subjectAltName constraints");
tcase_add_checked_fixture(tc, setup, teardown);
tcase_add_loop_test(tc, test_permitted_san, 0, countof(permitted_san));
suite_add_tcase(s, tc);
tc = tcase_create("excluded DN constraints");
tcase_add_checked_fixture(tc, setup, teardown);
tcase_add_loop_test(tc, test_excluded_dn, 0, countof(excluded_dn));
suite_add_tcase(s, tc);
tc = tcase_create("excluded subjectAltName constraints");
tcase_add_checked_fixture(tc, setup, teardown);
tcase_add_loop_test(tc, test_excluded_san, 0, countof(excluded_san));
suite_add_tcase(s, tc);
tc = tcase_create("permitted DN name constraint inherit");
tcase_add_checked_fixture(tc, setup, teardown);
tcase_add_loop_test(tc, test_permitted_dninh, 0, countof(permitted_dninh));
suite_add_tcase(s, tc);
tc = tcase_create("excluded DN name constraint inherit");
tcase_add_checked_fixture(tc, setup, teardown);
tcase_add_loop_test(tc, test_excluded_dninh, 0, countof(excluded_dninh));
suite_add_tcase(s, tc);
return s;
}

View File

@ -33,6 +33,7 @@ TEST_SUITE(vectors_suite_create)
TEST_SUITE_DEPEND(ecdsa_suite_create, PRIVKEY_GEN, KEY_ECDSA)
TEST_SUITE_DEPEND(rsa_suite_create, PRIVKEY_GEN, KEY_RSA)
TEST_SUITE_DEPEND(certpolicy_suite_create, CERT_ENCODE, CERT_X509)
TEST_SUITE_DEPEND(certnames_suite_create, CERT_ENCODE, CERT_X509)
TEST_SUITE(host_suite_create)
TEST_SUITE(printf_suite_create)
TEST_SUITE(hasher_suite_create)