xref: /freebsd/crypto/openssl/test/crltest.c (revision e0c4386e7e71d93b0edc0c8fa156263fc4a8b0b6)
1 /*
2  * Copyright 2015-2022 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the Apache License 2.0 (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  */
9 
10 #include "internal/nelem.h"
11 #include <string.h>
12 #include <openssl/bio.h>
13 #include <openssl/crypto.h>
14 #include <openssl/err.h>
15 #include <openssl/pem.h>
16 #include <openssl/x509.h>
17 
18 #include "testutil.h"
19 
20 #define PARAM_TIME 1474934400 /* Sep 27th, 2016 */
21 
22 static const char *kCRLTestRoot[] = {
23     "-----BEGIN CERTIFICATE-----\n",
24     "MIIDbzCCAlegAwIBAgIJAODri7v0dDUFMA0GCSqGSIb3DQEBCwUAME4xCzAJBgNV\n",
25     "BAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlhMRYwFAYDVQQHDA1Nb3VudGFpbiBW\n",
26     "aWV3MRIwEAYDVQQKDAlCb3JpbmdTU0wwHhcNMTYwOTI2MTUwNjI2WhcNMjYwOTI0\n",
27     "MTUwNjI2WjBOMQswCQYDVQQGEwJVUzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQG\n",
28     "A1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJQm9yaW5nU1NMMIIBIjANBgkq\n",
29     "hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo16WiLWZuaymsD8n5SKPmxV1y6jjgr3B\n",
30     "S/dUBpbrzd1aeFzNlI8l2jfAnzUyp+I21RQ+nh/MhqjGElkTtK9xMn1Y+S9GMRh+\n",
31     "5R/Du0iCb1tCZIPY07Tgrb0KMNWe0v2QKVVruuYSgxIWodBfxlKO64Z8AJ5IbnWp\n",
32     "uRqO6rctN9qUoMlTIAB6dL4G0tDJ/PGFWOJYwOMEIX54bly2wgyYJVBKiRRt4f7n\n",
33     "8H922qmvPNA9idmX9G1VAtgV6x97XXi7ULORIQvn9lVQF6nTYDBJhyuPB+mLThbL\n",
34     "P2o9orxGx7aCtnnBZUIxUvHNOI0FaSaZH7Fi0xsZ/GkG2HZe7ImPJwIDAQABo1Aw\n",
35     "TjAdBgNVHQ4EFgQUWPt3N5cZ/CRvubbrkqfBnAqhq94wHwYDVR0jBBgwFoAUWPt3\n",
36     "N5cZ/CRvubbrkqfBnAqhq94wDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOC\n",
37     "AQEAORu6M0MOwXy+3VEBwNilfTxyqDfruQsc1jA4PT8Oe8zora1WxE1JB4q2FJOz\n",
38     "EAuM3H/NXvEnBuN+ITvKZAJUfm4NKX97qmjMJwLKWe1gVv+VQTr63aR7mgWJReQN\n",
39     "XdMztlVeZs2dppV6uEg3ia1X0G7LARxGpA9ETbMyCpb39XxlYuTClcbA5ftDN99B\n",
40     "3Xg9KNdd++Ew22O3HWRDvdDpTO/JkzQfzi3sYwUtzMEonENhczJhGf7bQMmvL/w5\n",
41     "24Wxj4Z7KzzWIHsNqE/RIs6RV3fcW61j/mRgW2XyoWnMVeBzvcJr9NXp4VQYmFPw\n",
42     "amd8GKMZQvP0ufGnUn7D7uartA==\n",
43     "-----END CERTIFICATE-----\n",
44     NULL
45 };
46 
47 static const char *kCRLTestLeaf[] = {
48     "-----BEGIN CERTIFICATE-----\n",
49     "MIIDkDCCAnigAwIBAgICEAAwDQYJKoZIhvcNAQELBQAwTjELMAkGA1UEBhMCVVMx\n",
50     "EzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxEjAQ\n",
51     "BgNVBAoMCUJvcmluZ1NTTDAeFw0xNjA5MjYxNTA4MzFaFw0xNzA5MjYxNTA4MzFa\n",
52     "MEsxCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxpZm9ybmlhMRIwEAYDVQQKDAlC\n",
53     "b3JpbmdTU0wxEzARBgNVBAMMCmJvcmluZy5zc2wwggEiMA0GCSqGSIb3DQEBAQUA\n",
54     "A4IBDwAwggEKAoIBAQDc5v1S1M0W+QWM+raWfO0LH8uvqEwuJQgODqMaGnSlWUx9\n",
55     "8iQcnWfjyPja3lWg9K62hSOFDuSyEkysKHDxijz5R93CfLcfnVXjWQDJe7EJTTDP\n",
56     "ozEvxN6RjAeYv7CF000euYr3QT5iyBjg76+bon1p0jHZBJeNPP1KqGYgyxp+hzpx\n",
57     "e0gZmTlGAXd8JQK4v8kpdYwD6PPifFL/jpmQpqOtQmH/6zcLjY4ojmqpEdBqIKIX\n",
58     "+saA29hMq0+NK3K+wgg31RU+cVWxu3tLOIiesETkeDgArjWRS1Vkzbi4v9SJxtNu\n",
59     "OZuAxWiynRJw3JwH/OFHYZIvQqz68ZBoj96cepjPAgMBAAGjezB5MAkGA1UdEwQC\n",
60     "MAAwLAYJYIZIAYb4QgENBB8WHU9wZW5TU0wgR2VuZXJhdGVkIENlcnRpZmljYXRl\n",
61     "MB0GA1UdDgQWBBTGn0OVVh/aoYt0bvEKG+PIERqnDzAfBgNVHSMEGDAWgBRY+3c3\n",
62     "lxn8JG+5tuuSp8GcCqGr3jANBgkqhkiG9w0BAQsFAAOCAQEAd2nM8gCQN2Dc8QJw\n",
63     "XSZXyuI3DBGGCHcay/3iXu0JvTC3EiQo8J6Djv7WLI0N5KH8mkm40u89fJAB2lLZ\n",
64     "ShuHVtcC182bOKnePgwp9CNwQ21p0rDEu/P3X46ZvFgdxx82E9xLa0tBB8PiPDWh\n",
65     "lV16jbaKTgX5AZqjnsyjR5o9/mbZVupZJXx5Syq+XA8qiJfstSYJs4KyKK9UOjql\n",
66     "ICkJVKpi2ahDBqX4MOH4SLfzVk8pqSpviS6yaA1RXqjpkxiN45WWaXDldVHMSkhC\n",
67     "5CNXsXi4b1nAntu89crwSLA3rEwzCWeYj+BX7e1T9rr3oJdwOU/2KQtW1js1yQUG\n",
68     "tjJMFw==\n",
69     "-----END CERTIFICATE-----\n",
70     NULL
71 };
72 
73 static const char *kBasicCRL[] = {
74     "-----BEGIN X509 CRL-----\n",
75     "MIIBpzCBkAIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
76     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
77     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoA4wDDAKBgNV\n",
78     "HRQEAwIBATANBgkqhkiG9w0BAQsFAAOCAQEAnrBKKgvd9x9zwK9rtUvVeFeJ7+LN\n",
79     "ZEAc+a5oxpPNEsJx6hXoApYEbzXMxuWBQoCs5iEBycSGudct21L+MVf27M38KrWo\n",
80     "eOkq0a2siqViQZO2Fb/SUFR0k9zb8xl86Zf65lgPplALun0bV/HT7MJcl04Tc4os\n",
81     "dsAReBs5nqTGNEd5AlC1iKHvQZkM//MD51DspKnDpsDiUVi54h9C1SpfZmX8H2Vv\n",
82     "diyu0fZ/bPAM3VAGawatf/SyWfBMyKpoPXEG39oAzmjjOj8en82psn7m474IGaho\n",
83     "/vBbhl1ms5qQiLYPjm4YELtnXQoFyC72tBjbdFd/ZE9k4CNKDbxFUXFbkw==\n",
84     "-----END X509 CRL-----\n",
85     NULL
86 };
87 
88 static const char *kRevokedCRL[] = {
89     "-----BEGIN X509 CRL-----\n",
90     "MIIBvjCBpwIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
91     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
92     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEyNDRaFw0xNjEwMjYxNTEyNDRaMBUwEwICEAAX\n",
93     "DTE2MDkyNjE1MTIyNlqgDjAMMAoGA1UdFAQDAgECMA0GCSqGSIb3DQEBCwUAA4IB\n",
94     "AQCUGaM4DcWzlQKrcZvI8TMeR8BpsvQeo5BoI/XZu2a8h//PyRyMwYeaOM+3zl0d\n",
95     "sjgCT8b3C1FPgT+P2Lkowv7rJ+FHJRNQkogr+RuqCSPTq65ha4WKlRGWkMFybzVH\n",
96     "NloxC+aU3lgp/NlX9yUtfqYmJek1CDrOOGPrAEAwj1l/BUeYKNGqfBWYJQtPJu+5\n",
97     "OaSvIYGpETCZJscUWODmLEb/O3DM438vLvxonwGqXqS0KX37+CHpUlyhnSovxXxp\n",
98     "Pz4aF+L7OtczxL0GYtD2fR9B7TDMqsNmHXgQrixvvOY7MUdLGbd4RfJL3yA53hyO\n",
99     "xzfKY2TzxLiOmctG0hXFkH5J\n",
100     "-----END X509 CRL-----\n",
101     NULL
102 };
103 
104 static const char *kBadIssuerCRL[] = {
105     "-----BEGIN X509 CRL-----\n",
106     "MIIBwjCBqwIBATANBgkqhkiG9w0BAQsFADBSMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
107     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzEWMBQGA1UECgwN\n",
108     "Tm90IEJvcmluZ1NTTBcNMTYwOTI2MTUxMjQ0WhcNMTYxMDI2MTUxMjQ0WjAVMBMC\n",
109     "AhAAFw0xNjA5MjYxNTEyMjZaoA4wDDAKBgNVHRQEAwIBAjANBgkqhkiG9w0BAQsF\n",
110     "AAOCAQEAlBmjOA3Fs5UCq3GbyPEzHkfAabL0HqOQaCP12btmvIf/z8kcjMGHmjjP\n",
111     "t85dHbI4Ak/G9wtRT4E/j9i5KML+6yfhRyUTUJKIK/kbqgkj06uuYWuFipURlpDB\n",
112     "cm81RzZaMQvmlN5YKfzZV/clLX6mJiXpNQg6zjhj6wBAMI9ZfwVHmCjRqnwVmCUL\n",
113     "TybvuTmkryGBqREwmSbHFFjg5ixG/ztwzON/Ly78aJ8Bql6ktCl9+/gh6VJcoZ0q\n",
114     "L8V8aT8+Ghfi+zrXM8S9BmLQ9n0fQe0wzKrDZh14EK4sb7zmOzFHSxm3eEXyS98g\n",
115     "Od4cjsc3ymNk88S4jpnLRtIVxZB+SQ==\n",
116     "-----END X509 CRL-----\n",
117     NULL
118 };
119 
120 /*
121  * This is kBasicCRL but with a critical issuing distribution point
122  * extension.
123  */
124 static const char *kKnownCriticalCRL[] = {
125     "-----BEGIN X509 CRL-----\n",
126     "MIIBujCBowIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
127     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
128     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoCEwHzAKBgNV\n",
129     "HRQEAwIBATARBgNVHRwBAf8EBzAFoQMBAf8wDQYJKoZIhvcNAQELBQADggEBAA+3\n",
130     "i+5e5Ub8sccfgOBs6WVJFI9c8gvJjrJ8/dYfFIAuCyeocs7DFXn1n13CRZ+URR/Q\n",
131     "mVWgU28+xeusuSPYFpd9cyYTcVyNUGNTI3lwgcE/yVjPaOmzSZKdPakApRxtpKKQ\n",
132     "NN/56aQz3bnT/ZSHQNciRB8U6jiD9V30t0w+FDTpGaG+7bzzUH3UVF9xf9Ctp60A\n",
133     "3mfLe0scas7owSt4AEFuj2SPvcE7yvdOXbu+IEv21cEJUVExJAbhvIweHXh6yRW+\n",
134     "7VVeiNzdIjkZjyTmAzoXGha4+wbxXyBRbfH+XWcO/H+8nwyG8Gktdu2QB9S9nnIp\n",
135     "o/1TpfOMSGhMyMoyPrk=\n",
136     "-----END X509 CRL-----\n",
137     NULL
138 };
139 
140 /*
141  * kUnknownCriticalCRL is kBasicCRL but with an unknown critical extension.
142  */
143 static const char *kUnknownCriticalCRL[] = {
144     "-----BEGIN X509 CRL-----\n",
145     "MIIBvDCBpQIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
146     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
147     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoCMwITAKBgNV\n",
148     "HRQEAwIBATATBgwqhkiG9xIEAYS3CQABAf8EADANBgkqhkiG9w0BAQsFAAOCAQEA\n",
149     "GvBP0xqL509InMj/3493YVRV+ldTpBv5uTD6jewzf5XdaxEQ/VjTNe5zKnxbpAib\n",
150     "Kf7cwX0PMSkZjx7k7kKdDlEucwVvDoqC+O9aJcqVmM6GDyNb9xENxd0XCXja6MZC\n",
151     "yVgP4AwLauB2vSiEprYJyI1APph3iAEeDm60lTXX/wBM/tupQDDujKh2GPyvBRfJ\n",
152     "+wEDwGg3ICwvu4gO4zeC5qnFR+bpL9t5tOMAQnVZ0NWv+k7mkd2LbHdD44dxrfXC\n",
153     "nhtfERx99SDmC/jtUAJrGhtCO8acr7exCeYcduN7KKCm91OeCJKK6OzWst0Og1DB\n",
154     "kwzzU2rL3G65CrZ7H0SZsQ==\n",
155     "-----END X509 CRL-----\n",
156     NULL
157 };
158 
159 /*
160  * kUnknownCriticalCRL2 is kBasicCRL but with a critical issuing distribution
161  * point extension followed by an unknown critical extension
162  */
163 static const char *kUnknownCriticalCRL2[] = {
164     "-----BEGIN X509 CRL-----\n",
165     "MIIBzzCBuAIBATANBgkqhkiG9w0BAQsFADBOMQswCQYDVQQGEwJVUzETMBEGA1UE\n",
166     "CAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzESMBAGA1UECgwJ\n",
167     "Qm9yaW5nU1NMFw0xNjA5MjYxNTEwNTVaFw0xNjEwMjYxNTEwNTVaoDYwNDAKBgNV\n",
168     "HRQEAwIBATARBgNVHRwBAf8EBzAFoQMBAf8wEwYMKoZIhvcSBAGEtwkAAQH/BAAw\n",
169     "DQYJKoZIhvcNAQELBQADggEBACTcpQC8jXL12JN5YzOcQ64ubQIe0XxRAd30p7qB\n",
170     "BTXGpgqBjrjxRfLms7EBYodEXB2oXMsDq3km0vT1MfYdsDD05S+SQ9CDsq/pUfaC\n",
171     "E2WNI5p8WircRnroYvbN2vkjlRbMd1+yNITohXYXCJwjEOAWOx3XIM10bwPYBv4R\n",
172     "rDobuLHoMgL3yHgMHmAkP7YpkBucNqeBV8cCdeAZLuhXFWi6yfr3r/X18yWbC/r2\n",
173     "2xXdkrSqXLFo7ToyP8YKTgiXpya4x6m53biEYwa2ULlas0igL6DK7wjYZX95Uy7H\n",
174     "GKljn9weIYiMPV/BzGymwfv2EW0preLwtyJNJPaxbdin6Jc=\n",
175     "-----END X509 CRL-----\n",
176     NULL
177 };
178 
179 static const char **unknown_critical_crls[] = {
180     kUnknownCriticalCRL, kUnknownCriticalCRL2
181 };
182 
183 static X509 *test_root = NULL;
184 static X509 *test_leaf = NULL;
185 
186 /*
187  * Glue an array of strings together.  Return a BIO and put the string
188  * into |*out| so we can free it.
189  */
190 static BIO *glue2bio(const char **pem, char **out)
191 {
192     size_t s = 0;
193 
194     *out = glue_strings(pem, &s);
195     return BIO_new_mem_buf(*out, s);
196 }
197 
198 /*
199  * Create a CRL from an array of strings.
200  */
201 static X509_CRL *CRL_from_strings(const char **pem)
202 {
203     X509_CRL *crl;
204     char *p;
205     BIO *b = glue2bio(pem, &p);
206 
207     if (b == NULL) {
208         OPENSSL_free(p);
209         return NULL;
210     }
211 
212     crl = PEM_read_bio_X509_CRL(b, NULL, NULL, NULL);
213 
214     OPENSSL_free(p);
215     BIO_free(b);
216     return crl;
217 }
218 
219 /*
220  * Create an X509 from an array of strings.
221  */
222 static X509 *X509_from_strings(const char **pem)
223 {
224     X509 *x;
225     char *p;
226     BIO *b = glue2bio(pem, &p);
227 
228     if (b == NULL) {
229         OPENSSL_free(p);
230         return NULL;
231     }
232 
233     x = PEM_read_bio_X509(b, NULL, NULL, NULL);
234 
235     OPENSSL_free(p);
236     BIO_free(b);
237     return x;
238 }
239 
240 /*
241  * Verify |leaf| certificate (chained up to |root|).  |crls| if
242  * not NULL, is a list of CRLs to include in the verification. It is
243  * also free'd before returning, which is kinda yucky but convenient.
244  * Returns a value from X509_V_ERR_xxx or X509_V_OK.
245  */
246 static int verify(X509 *leaf, X509 *root, STACK_OF(X509_CRL) *crls,
247                   unsigned long flags)
248 {
249     X509_STORE_CTX *ctx = X509_STORE_CTX_new();
250     X509_STORE *store = X509_STORE_new();
251     X509_VERIFY_PARAM *param = X509_VERIFY_PARAM_new();
252     STACK_OF(X509) *roots = sk_X509_new_null();
253     int status = X509_V_ERR_UNSPECIFIED;
254 
255     if (!TEST_ptr(ctx)
256         || !TEST_ptr(store)
257         || !TEST_ptr(param)
258         || !TEST_ptr(roots))
259         goto err;
260 
261     /* Create a stack; upref the cert because we free it below. */
262     X509_up_ref(root);
263     if (!TEST_true(sk_X509_push(roots, root))
264         || !TEST_true(X509_STORE_CTX_init(ctx, store, leaf, NULL)))
265         goto err;
266     X509_STORE_CTX_set0_trusted_stack(ctx, roots);
267     X509_STORE_CTX_set0_crls(ctx, crls);
268     X509_VERIFY_PARAM_set_time(param, PARAM_TIME);
269     if (!TEST_long_eq((long)X509_VERIFY_PARAM_get_time(param), PARAM_TIME))
270         goto err;
271     X509_VERIFY_PARAM_set_depth(param, 16);
272     if (flags)
273         X509_VERIFY_PARAM_set_flags(param, flags);
274     X509_STORE_CTX_set0_param(ctx, param);
275     param = NULL;
276 
277     ERR_clear_error();
278     status = X509_verify_cert(ctx) == 1 ? X509_V_OK
279                                         : X509_STORE_CTX_get_error(ctx);
280 err:
281     sk_X509_pop_free(roots, X509_free);
282     sk_X509_CRL_pop_free(crls, X509_CRL_free);
283     X509_VERIFY_PARAM_free(param);
284     X509_STORE_CTX_free(ctx);
285     X509_STORE_free(store);
286     return status;
287 }
288 
289 /*
290  * Create a stack of CRL's.  Upref each one because we call pop_free on
291  * the stack and need to keep the CRL's around until the test exits.
292  * Yes this crashes on malloc failure; it forces us to debug.
293  */
294 static STACK_OF(X509_CRL) *make_CRL_stack(X509_CRL *x1, X509_CRL *x2)
295 {
296     STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
297 
298     sk_X509_CRL_push(sk, x1);
299     X509_CRL_up_ref(x1);
300     if (x2 != NULL) {
301         sk_X509_CRL_push(sk, x2);
302         X509_CRL_up_ref(x2);
303     }
304     return sk;
305 }
306 
307 static int test_basic_crl(void)
308 {
309     X509_CRL *basic_crl = CRL_from_strings(kBasicCRL);
310     X509_CRL *revoked_crl = CRL_from_strings(kRevokedCRL);
311     int r;
312 
313     r = TEST_ptr(basic_crl)
314         && TEST_ptr(revoked_crl)
315         && TEST_int_eq(verify(test_leaf, test_root,
316                               make_CRL_stack(basic_crl, NULL),
317                               X509_V_FLAG_CRL_CHECK), X509_V_OK)
318         && TEST_int_eq(verify(test_leaf, test_root,
319                               make_CRL_stack(basic_crl, revoked_crl),
320                               X509_V_FLAG_CRL_CHECK), X509_V_ERR_CERT_REVOKED);
321     X509_CRL_free(basic_crl);
322     X509_CRL_free(revoked_crl);
323     return r;
324 }
325 
326 static int test_no_crl(void)
327 {
328     return TEST_int_eq(verify(test_leaf, test_root, NULL,
329                               X509_V_FLAG_CRL_CHECK),
330                        X509_V_ERR_UNABLE_TO_GET_CRL);
331 }
332 
333 static int test_bad_issuer_crl(void)
334 {
335     X509_CRL *bad_issuer_crl = CRL_from_strings(kBadIssuerCRL);
336     int r;
337 
338     r = TEST_ptr(bad_issuer_crl)
339         && TEST_int_eq(verify(test_leaf, test_root,
340                               make_CRL_stack(bad_issuer_crl, NULL),
341                               X509_V_FLAG_CRL_CHECK),
342                        X509_V_ERR_UNABLE_TO_GET_CRL);
343     X509_CRL_free(bad_issuer_crl);
344     return r;
345 }
346 
347 static int test_known_critical_crl(void)
348 {
349     X509_CRL *known_critical_crl = CRL_from_strings(kKnownCriticalCRL);
350     int r;
351 
352     r = TEST_ptr(known_critical_crl)
353         && TEST_int_eq(verify(test_leaf, test_root,
354                               make_CRL_stack(known_critical_crl, NULL),
355                               X509_V_FLAG_CRL_CHECK), X509_V_OK);
356     X509_CRL_free(known_critical_crl);
357     return r;
358 }
359 
360 static int test_unknown_critical_crl(int n)
361 {
362     X509_CRL *unknown_critical_crl = CRL_from_strings(unknown_critical_crls[n]);
363     int r;
364 
365     r = TEST_ptr(unknown_critical_crl)
366         && TEST_int_eq(verify(test_leaf, test_root,
367                               make_CRL_stack(unknown_critical_crl, NULL),
368                               X509_V_FLAG_CRL_CHECK),
369                        X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION);
370     X509_CRL_free(unknown_critical_crl);
371     return r;
372 }
373 
374 static int test_reuse_crl(void)
375 {
376     X509_CRL *reused_crl = CRL_from_strings(kBasicCRL);
377     char *p;
378     BIO *b = glue2bio(kRevokedCRL, &p);
379 
380     if (b == NULL) {
381         OPENSSL_free(p);
382         X509_CRL_free(reused_crl);
383         return 0;
384     }
385 
386     reused_crl = PEM_read_bio_X509_CRL(b, &reused_crl, NULL, NULL);
387 
388     OPENSSL_free(p);
389     BIO_free(b);
390     X509_CRL_free(reused_crl);
391     return 1;
392 }
393 
394 int setup_tests(void)
395 {
396     if (!TEST_ptr(test_root = X509_from_strings(kCRLTestRoot))
397         || !TEST_ptr(test_leaf = X509_from_strings(kCRLTestLeaf)))
398         return 0;
399 
400     ADD_TEST(test_no_crl);
401     ADD_TEST(test_basic_crl);
402     ADD_TEST(test_bad_issuer_crl);
403     ADD_TEST(test_known_critical_crl);
404     ADD_ALL_TESTS(test_unknown_critical_crl, OSSL_NELEM(unknown_critical_crls));
405     ADD_TEST(test_reuse_crl);
406     return 1;
407 }
408 
409 void cleanup_tests(void)
410 {
411     X509_free(test_root);
412     X509_free(test_leaf);
413 }
414