/*
* Copyright 2015-2019 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "internal/nelem.h"
#include <string.h>
#include <openssl/bio.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
#include "testutil.h"
#define PARAM_TIME 1474934400 /* Sep 27th, 2016 */
static const char *kCRLTestRoot[] = {
"-----BEGIN CERTIFICATE-----\n",
"MIIDbzCCAlegAwIBAgIJAODri7v0dDUFMA0GCSqGSIb3DQEBCwUAME4xCzAJBgNV\n",
"BAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlhMRYwFAYDVQQHDA1Nb3VudGFpbiBW\n",
"aWV3MRIwEAYDVQQKDAlCb3JpbmdTU0wwHhcNMTYwOTI2MTUwNjI2WhcNMjYwOTI0\n",
"MTUwNjI2WjBOMQswCQYDVQQGEwJVUzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQG\n",
"A1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJQm9yaW5nU1NMMIIBIjANBgkq\n",
"hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo16WiLWZuaymsD8n5SKPmxV1y6jjgr3B\n",
"S/dUBpbrzd1aeFzNlI8l2jfAnzUyp+I21RQ+nh/MhqjGElkTtK9xMn1Y+S9GMRh+\n",
"5R/Du0iCb1tCZIPY07Tgrb0KMNWe0v2QKVVruuYSgxIWodBfxlKO64Z8AJ5IbnWp\n",
"uRqO6rctN9qUoMlTIAB6dL4G0tDJ/PGFWOJYwOMEIX54bly2wgyYJVBKiRRt4f7n\n",
"8H922qmvPNA9idmX9G1VAtgV6x97XXi7ULORIQvn9lVQF6nTYDBJhyuPB+mLThbL\n",
"P2o9orxGx7aCtnnBZUIxUvHNOI0FaSaZH7Fi0xsZ/GkG2HZe7ImPJwIDAQABo1Aw\n",
"TjAdBgNVHQ4EFgQUWPt3N5cZ/CRvubbrkqfBnAqhq94wHwYDVR0jBBgwFoAUWPt3\n",
"N5cZ/CRvubbrkqfBnAqhq94wDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOC\n",
"AQEAORu6M0MOwXy+3VEBwNilfTxyqDfruQsc1jA4PT8Oe8zora1WxE1JB4q2FJOz\n",
"EAuM3H/NXvEnBuN+ITvKZAJUfm4NKX97qmjMJwLKWe1gVv+VQTr63aR7mgWJReQN\n",
"XdMztlVeZs2dppV6uEg3ia1X0G7LARxGpA9ETbMyCpb39XxlYuTClcbA5ftDN99B\n",
"3Xg9KNdd++Ew22O3HWRDvdDpTO/JkzQfzi3sYwUtzMEonENhczJhGf7bQMmvL/w5\n",
"24Wxj4Z7KzzWIHsNqE/RIs6RV3fcW61j/mRgW2XyoWnMVeBzvcJr9NXp4VQYmFPw\n",
"amd8GKMZQvP0ufGnUn7D7uartA==\n",
"-----END CERTIFICATE-----\n",
NULL
};
static const char *kCRLTestLeaf[] = {
"-----BEGIN CERTIFICATE-----\n",
"MIIDkDCCAnigAwIBAgICEAAwDQYJKoZIhvcNAQELBQAwTjELMAkGA1UEBhMCVVMx\n",
"EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxEjAQ\n",
"BgNVBAoMCUJvcmluZ1NTTDAeFw0xNjA5MjYxNTA4MzFaFw0xNzA5MjYxNTA4MzFa\n",
"MEsxCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlhMRIwEAYDVQQKDAlC\n",
"b3JpbmdTU0wxEzARBgNVBAMMCmJvcmluZy5zc2wwggEiMA0GCSqGSIb3DQEBAQUA\n",
"A4IBDwAwggEKAoIBAQDc5v1S1M0W+QWM+raWfO0LH8uvqEwuJQgODqMaGnSlWUx9\n",
"8iQcnWfjyPja3lWg9K62hSOFDuSyEkysKHDxijz5R93CfLcfnVXjWQDJe7EJTTDP\n",
"ozEvxN6RjAeYv7CF000euYr3QT5iyBjg76+bon1p0jHZBJeNPP1KqGYgyxp+hzpx\n",
"e0gZmTlGAXd8JQK4v8kpdYwD6PPifFL/jpmQpqOtQmH/6zcLjY4ojmqpEdBqIKIX\n",
"+saA29hMq0+NK3K+wgg31RU+cVWxu3tLOIiesETkeDgArjWRS1Vkzbi4v9SJxtNu\n",
"OZuAxWiynRJw3JwH/OFHYZIvQqz68ZBoj96cepjPAgMBAAGjezB5MAkGA1UdEwQC\n",
"MAAwLAYJYIZIAYb4QgENBB8WHU9wZW5TU0wgR2VuZXJhdGVkIENlcnRpZmljYXRl\n",
"MB0GA1UdDgQWBBTGn0OVVh/aoYt0bvEKG+PIERqnDzAfBgNVHSMEGDAWgBRY+3c3\n",
"lxn8JG+5tuuSp8GcCqGr3jANBgkqhkiG9w0BAQsFAAOCAQEAd2nM8gCQN2Dc8QJw\n",
"XSZXyuI3DBGGCHcay/3iXu0JvTC3EiQo8J6Djv7WLI0N5KH8mkm40u89fJAB2lLZ\n",
"ShuHVtcC182bOKnePgwp9CNwQ21p0rDEu/P3X46ZvFgdxx82E9xLa0tBB8PiPDWh\n",
"lV16jbaKTgX5AZqjnsyjR5o9/mbZVupZJXx5Syq+XA8qiJfstSYJs4KyKK9UOjql\n",
"ICkJVKpi2ahDBqX4MOH4SLfzVk8pqSpviS6yaA1RXqjpkxiN45WWaXDldVHMSkhC\n",
"5CNXsXi4b1nAntu89crwSLA3rEwzCWeYj+BX7e1T9rr3oJdwOU/2KQtW1js1yQUG\n",
"tjJMFw==\n",
"-----END CERTIFICATE-----\n",
NULL
};
static const char *kBasicCRL[] = {
"-----BEGIN X509 CRL-----\n",
"MIIBpzCBkAIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
"CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
"Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoA4wDDAKBgNV\n",
"HRQEAwIBATANBgkqhkiG9w0BAQsFAAOCAQEAnrBKKgvd9x9zwK9rtUvVeFeJ7+LN\n",
"ZEAc+a5oxpPNEsJx6hXoApYEbzXMxuWBQoCs5iEBycSGudct21L+MVf27M38KrWo\n",
"eOkq0a2siqViQZO2Fb/SUFR0k9zb8xl86Zf65lgPplALun0bV/HT7MJcl04Tc4os\n",
"dsAReBs5nqTGNEd5AlC1iKHvQZkM//MD51DspKnDpsDiUVi54h9C1SpfZmX8H2Vv\n",
"diyu0fZ/bPAM3VAGawatf/SyWfBMyKpoPXEG39oAzmjjOj8en82psn7m474IGaho\n",
"/vBbhl1ms5qQiLYPjm4YELtnXQoFyC72tBjbdFd/ZE9k4CNKDbxFUXFbkw==\n",
"-----END X509 CRL-----\n",
NULL
};
static const char *kRevokedCRL[] = {
"-----BEGIN X509 CRL-----\n",
"MIIBvjCBpwIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
"CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
"Qm9yaW5nU1NMFw0xNjA5MjYxNTEyNDRaFw0xNjEwMjYxNTEyNDRaMBUwEwICEAAX\n",
"DTE2MDkyNjE1MTIyNlqgDjAMMAoGA1UdFAQDAgECMA0GCSqGSIb3DQEBCwUAA4IB\n",
"AQCUGaM4DcWzlQKrcZvI8TMeR8BpsvQeo5BoI/XZu2a8h//PyRyMwYeaOM+3zl0d\n",
"sjgCT8b3C1FPgT+P2Lkowv7rJ+FHJRNQkogr+RuqCSPTq65ha4WKlRGWkMFybzVH\n",
"NloxC+aU3lgp/NlX9yUtfqYmJek1CDrOOGPrAEAwj1l/BUeYKNGqfBWYJQtPJu+5\n",
"OaSvIYGpETCZJscUWODmLEb/O3DM438vLvxonwGqXqS0KX37+CHpUlyhnSovxXxp\n",
"Pz4aF+L7OtczxL0GYtD2fR9B7TDMqsNmHXgQrixvvOY7MUdLGbd4RfJL3yA53hyO\n",
"xzfKY2TzxLiOmctG0hXFkH5J\n",
"-----END X509 CRL-----\n",
NULL
};
static const char *kBadIssuerCRL[] = {
"-----BEGIN X509 CRL-----\n",
"MIIBwjCBqwIBATANBgkqhkiG9w0BAQsFADBSMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
"CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzEWMBQGA1UECgwN\n",
"Tm90IEJvcmluZ1NTTBcNMTYwOTI2MTUxMjQ0WhcNMTYxMDI2MTUxMjQ0WjAVMBMC\n",
"AhAAFw0xNjA5MjYxNTEyMjZaoA4wDDAKBgNVHRQEAwIBAjANBgkqhkiG9w0BAQsF\n",
"AAOCAQEAlBmjOA3Fs5UCq3GbyPEzHkfAabL0HqOQaCP12btmvIf/z8kcjMGHmjjP\n",
"t85dHbI4Ak/G9wtRT4E/j9i5KML+6yfhRyUTUJKIK/kbqgkj06uuYWuFipURlpDB\n",
"cm81RzZaMQvmlN5YKfzZV/clLX6mJiXpNQg6zjhj6wBAMI9ZfwVHmCjRqnwVmCUL\n",
"TybvuTmkryGBqREwmSbHFFjg5ixG/ztwzON/Ly78aJ8Bql6ktCl9+/gh6VJcoZ0q\n",
"L8V8aT8+Ghfi+zrXM8S9BmLQ9n0fQe0wzKrDZh14EK4sb7zmOzFHSxm3eEXyS98g\n",
"Od4cjsc3ymNk88S4jpnLRtIVxZB+SQ==\n",
"-----END X509 CRL-----\n",
NULL
};
/*
* This is kBasicCRL but with a critical issuing distribution point
* extension.
*/
static const char *kKnownCriticalCRL[] = {
"-----BEGIN X509 CRL-----\n",
"MIIBujCBowIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
"CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
"Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoCEwHzAKBgNV\n",
"HRQEAwIBATARBgNVHRwBAf8EBzAFoQMBAf8wDQYJKoZIhvcNAQELBQADggEBAA+3\n",
"i+5e5Ub8sccfgOBs6WVJFI9c8gvJjrJ8/dYfFIAuCyeocs7DFXn1n13CRZ+URR/Q\n",
"mVWgU28+xeusuSPYFpd9cyYTcVyNUGNTI3lwgcE/yVjPaOmzSZKdPakApRxtpKKQ\n",
"NN/56aQz3bnT/ZSHQNciRB8U6jiD9V30t0w+FDTpGaG+7bzzUH3UVF9xf9Ctp60A\n",
"3mfLe0scas7owSt4AEFuj2SPvcE7yvdOXbu+IEv21cEJUVExJAbhvIweHXh6yRW+\n",
"7VVeiNzdIjkZjyTmAzoXGha4+wbxXyBRbfH+XWcO/H+8nwyG8Gktdu2QB9S9nnIp\n",
"o/1TpfOMSGhMyMoyPrk=\n",
"-----END X509 CRL-----\n",
NULL
};
/*
* kUnknownCriticalCRL is kBasicCRL but with an unknown critical extension.
*/
static const char *kUnknownCriticalCRL[] = {
"-----BEGIN X509 CRL-----\n",
"MIIBvDCBpQIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
"CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
"Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoCMwITAKBgNV\n",
"HRQEAwIBATATBgwqhkiG9xIEAYS3CQABAf8EADANBgkqhkiG9w0BAQsFAAOCAQEA\n",
"GvBP0xqL509InMj/3493YVRV+ldTpBv5uTD6jewzf5XdaxEQ/VjTNe5zKnxbpAib\n",
"Kf7cwX0PMSkZjx7k7kKdDlEucwVvDoqC+O9aJcqVmM6GDyNb9xENxd0XCXja6MZC\n",
"yVgP4AwLauB2vSiEprYJyI1APph3iAEeDm60lTXX/wBM/tupQDDujKh2GPyvBRfJ\n",
"+wEDwGg3ICwvu4gO4zeC5qnFR+bpL9t5tOMAQnVZ0NWv+k7mkd2LbHdD44dxrfXC\n",
"nhtfERx99SDmC/jtUAJrGhtCO8acr7exCeYcduN7KKCm91OeCJKK6OzWst0Og1DB\n",
"kwzzU2rL3G65CrZ7H0SZsQ==\n",
"-----END X509 CRL-----\n",
NULL
};
/*
* kUnknownCriticalCRL2 is kBasicCRL but with a critical issuing distribution
* point extension followed by an unknown critical extension
*/
static const char *kUnknownCriticalCRL2[] = {
"-----BEGIN X509 CRL-----\n",
"MIIBzzCBuAIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
"CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
"Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoDYwNDAKBgNV\n",
"HRQEAwIBATARBgNVHRwBAf8EBzAFoQMBAf8wEwYMKoZIhvcSBAGEtwkAAQH/BAAw\n",
"DQYJKoZIhvcNAQELBQADggEBACTcpQC8jXL12JN5YzOcQ64ubQIe0XxRAd30p7qB\n",
"BTXGpgqBjrjxRfLms7EBYodEXB2oXMsDq3km0vT1MfYdsDD05S+SQ9CDsq/pUfaC\n",
"E2WNI5p8WircRnroYvbN2vkjlRbMd1+yNITohXYXCJwjEOAWOx3XIM10bwPYBv4R\n",
"rDobuLHoMgL3yHgMHmAkP7YpkBucNqeBV8cCdeAZLuhXFWi6yfr3r/X18yWbC/r2\n",
"2xXdkrSqXLFo7ToyP8YKTgiXpya4x6m53biEYwa2ULlas0igL6DK7wjYZX95Uy7H\n",
"GKljn9weIYiMPV/BzGymwfv2EW0preLwtyJNJPaxbdin6Jc=\n",
"-----END X509 CRL-----\n",
NULL
};
static const char **unknown_critical_crls[] = {
kUnknownCriticalCRL, kUnknownCriticalCRL2
};
static X509 *test_root = NULL;
static X509 *test_leaf = NULL;
/*
* Glue an array of strings together. Return a BIO and put the string
* into |*out| so we can free it.
*/
static BIO *glue2bio(const char **pem, char **out)
{
size_t s = 0;
*out = glue_strings(pem, &s);
return BIO_new_mem_buf(*out, s);
}
/*
* Create a CRL from an array of strings.
*/
static X509_CRL *CRL_from_strings(const char **pem)
{
char *p;
BIO *b = glue2bio(pem, &p);
X509_CRL *crl = PEM_read_bio_X509_CRL(b, NULL, NULL, NULL);
OPENSSL_free(p);
BIO_free(b);
return crl;
}
/*
* Create an X509 from an array of strings.
*/
static X509 *X509_from_strings(const char **pem)
{
char *p;
BIO *b = glue2bio(pem, &p);
X509 *x = PEM_read_bio_X509(b, NULL, NULL, NULL);
OPENSSL_free(p);
BIO_free(b);
return x;
}
/*
* Verify |leaf| certificate (chained up to |root|). |crls| if
* not NULL, is a list of CRLs to include in the verification. It is
* also free'd before returning, which is kinda yucky but convenient.
* Returns a value from X509_V_ERR_xxx or X509_V_OK.
*/
static int verify(X509 *leaf, X509 *root, STACK_OF(X509_CRL) *crls,
unsigned long flags)
{
X509_STORE_CTX *ctx = X509_STORE_CTX_new();
X509_STORE *store = X509_STORE_new();
X509_VERIFY_PARAM *param = X509_VERIFY_PARAM_new();
STACK_OF(X509) *roots = sk_X509_new_null();
int status = X509_V_ERR_UNSPECIFIED;
if (!TEST_ptr(ctx)
|| !TEST_ptr(store)
|| !TEST_ptr(param)
|| !TEST_ptr(roots))
goto err;
/* Create a stack; upref the cert because we free it below. */
X509_up_ref(root);
if (!TEST_true(sk_X509_push(roots, root))
|| !TEST_true(X509_STORE_CTX_init(ctx, store, leaf, NULL)))
goto err;
X509_STORE_CTX_set0_trusted_stack(ctx, roots);
X509_STORE_CTX_set0_crls(ctx, crls);
X509_VERIFY_PARAM_set_time(param, PARAM_TIME);
if (!TEST_long_eq((long)X509_VERIFY_PARAM_get_time(param), PARAM_TIME))
goto err;
X509_VERIFY_PARAM_set_depth(param, 16);
if (flags)
X509_VERIFY_PARAM_set_flags(param, flags);
X509_STORE_CTX_set0_param(ctx, param);
param = NULL;
ERR_clear_error();
status = X509_verify_cert(ctx) == 1 ? X509_V_OK
: X509_STORE_CTX_get_error(ctx);
err:
sk_X509_pop_free(roots, X509_free);
sk_X509_CRL_pop_free(crls, X509_CRL_free);
X509_VERIFY_PARAM_free(param);
X509_STORE_CTX_free(ctx);
X509_STORE_free(store);
return status;
}
/*
* Create a stack of CRL's. Upref each one because we call pop_free on
* the stack and need to keep the CRL's around until the test exits.
* Yes this crashes on malloc failure; it forces us to debug.
*/
static STACK_OF(X509_CRL) *make_CRL_stack(X509_CRL *x1, X509_CRL *x2)
{
STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
sk_X509_CRL_push(sk, x1);
X509_CRL_up_ref(x1);
if (x2 != NULL) {
sk_X509_CRL_push(sk, x2);
X509_CRL_up_ref(x2);
}
return sk;
}
static int test_basic_crl(void)
{
X509_CRL *basic_crl = CRL_from_strings(kBasicCRL);
X509_CRL *revoked_crl = CRL_from_strings(kRevokedCRL);
int r;
r = TEST_ptr(basic_crl)
&& TEST_ptr(revoked_crl)
&& TEST_int_eq(verify(test_leaf, test_root,
make_CRL_stack(basic_crl, NULL),
X509_V_FLAG_CRL_CHECK), X509_V_OK)
&& TEST_int_eq(verify(test_leaf, test_root,
make_CRL_stack(basic_crl, revoked_crl),
X509_V_FLAG_CRL_CHECK), X509_V_ERR_CERT_REVOKED);
X509_CRL_free(basic_crl);
X509_CRL_free(revoked_crl);
return r;
}
static int test_no_crl(void)
{
return TEST_int_eq(verify(test_leaf, test_root, NULL,
X509_V_FLAG_CRL_CHECK),
X509_V_ERR_UNABLE_TO_GET_CRL);
}
static int test_bad_issuer_crl(void)
{
X509_CRL *bad_issuer_crl = CRL_from_strings(kBadIssuerCRL);
int r;
r = TEST_ptr(bad_issuer_crl)
&& TEST_int_eq(verify(test_leaf, test_root,
make_CRL_stack(bad_issuer_crl, NULL),
X509_V_FLAG_CRL_CHECK),
X509_V_ERR_UNABLE_TO_GET_CRL);
X509_CRL_free(bad_issuer_crl);
return r;
}
static int test_known_critical_crl(void)
{
X509_CRL *known_critical_crl = CRL_from_strings(kKnownCriticalCRL);
int r;
r = TEST_ptr(known_critical_crl)
&& TEST_int_eq(verify(test_leaf, test_root,
make_CRL_stack(known_critical_crl, NULL),
X509_V_FLAG_CRL_CHECK), X509_V_OK);
X509_CRL_free(known_critical_crl);
return r;
}
static int test_unknown_critical_crl(int n)
{
X509_CRL *unknown_critical_crl = CRL_from_strings(unknown_critical_crls[n]);
int r;
r = TEST_ptr(unknown_critical_crl)
&& TEST_int_eq(verify(test_leaf, test_root,
make_CRL_stack(unknown_critical_crl, NULL),
X509_V_FLAG_CRL_CHECK),
X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION);
X509_CRL_free(unknown_critical_crl);
return r;
}
static int test_reuse_crl(void)
{
X509_CRL *reused_crl = CRL_from_strings(kBasicCRL);
char *p;
BIO *b = glue2bio(kRevokedCRL, &p);
reused_crl = PEM_read_bio_X509_CRL(b, &reused_crl, NULL, NULL);
OPENSSL_free(p);
BIO_free(b);
X509_CRL_free(reused_crl);
return 1;
}
int setup_tests(void)
{
if (!TEST_ptr(test_root = X509_from_strings(kCRLTestRoot))
|| !TEST_ptr(test_leaf = X509_from_strings(kCRLTestLeaf)))
return 0;
ADD_TEST(test_no_crl);
ADD_TEST(test_basic_crl);
ADD_TEST(test_bad_issuer_crl);
ADD_TEST(test_known_critical_crl);
ADD_ALL_TESTS(test_unknown_critical_crl, OSSL_NELEM(unknown_critical_crls));
ADD_TEST(test_reuse_crl);
return 1;
}
void cleanup_tests(void)
{
X509_free(test_root);
X509_free(test_leaf);
}