xref: /freebsd/crypto/openssl/test/v3nametest.c (revision e7be843b4a162e68651d3911f0357ed464915629)
1 /*
2  * Copyright 2012-2025 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 <string.h>
11 
12 #include <openssl/e_os2.h>
13 #include <openssl/x509.h>
14 #include <openssl/x509v3.h>
15 #include "internal/nelem.h"
16 #include "testutil.h"
17 
18 static const char *const names[] = {
19     "a", "b", ".", "*", "@",
20     ".a", "a.", ".b", "b.", ".*", "*.", "*@", "@*", "a@", "@a", "b@", "..",
21     "-example.com", "example-.com",
22     "@@", "**", "*.com", "*com", "*.*.com", "*com", "com*", "*example.com",
23     "*@example.com", "test@*.example.com", "example.com", "www.example.com",
24     "test.www.example.com", "*.example.com", "*.www.example.com",
25     "test.*.example.com", "www.*.com",
26     ".www.example.com", "*www.example.com",
27     "example.net", "xn--rger-koa.example.com",
28     "*.xn--rger-koa.example.com", "www.xn--rger-koa.example.com",
29     "*.good--example.com", "www.good--example.com",
30     "*.xn--bar.com", "xn--foo.xn--bar.com",
31     "a.example.com", "b.example.com",
32     "postmaster@example.com", "Postmaster@example.com",
33     "postmaster@EXAMPLE.COM",
34     NULL
35 };
36 
37 static const char *const exceptions[] = {
38     "set CN: host: [*.example.com] matches [a.example.com]",
39     "set CN: host: [*.example.com] matches [b.example.com]",
40     "set CN: host: [*.example.com] matches [www.example.com]",
41     "set CN: host: [*.example.com] matches [xn--rger-koa.example.com]",
42     "set CN: host: [*.www.example.com] matches [test.www.example.com]",
43     "set CN: host: [*.www.example.com] matches [.www.example.com]",
44     "set CN: host: [*www.example.com] matches [www.example.com]",
45     "set CN: host: [test.www.example.com] matches [.www.example.com]",
46     "set CN: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
47     "set CN: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
48     "set CN: host: [*.good--example.com] matches [www.good--example.com]",
49     "set CN: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
50     "set CN: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
51     "set emailAddress: email: [postmaster@example.com] does not match [Postmaster@example.com]",
52     "set emailAddress: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
53     "set emailAddress: email: [Postmaster@example.com] does not match [postmaster@example.com]",
54     "set emailAddress: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
55     "set dnsName: host: [*.example.com] matches [www.example.com]",
56     "set dnsName: host: [*.example.com] matches [a.example.com]",
57     "set dnsName: host: [*.example.com] matches [b.example.com]",
58     "set dnsName: host: [*.example.com] matches [xn--rger-koa.example.com]",
59     "set dnsName: host: [*.www.example.com] matches [test.www.example.com]",
60     "set dnsName: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
61     "set dnsName: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
62     "set dnsName: host: [*.www.example.com] matches [.www.example.com]",
63     "set dnsName: host: [*www.example.com] matches [www.example.com]",
64     "set dnsName: host: [test.www.example.com] matches [.www.example.com]",
65     "set dnsName: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
66     "set dnsName: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
67     "set dnsName: host: [*.good--example.com] matches [www.good--example.com]",
68     "set rfc822Name: email: [postmaster@example.com] does not match [Postmaster@example.com]",
69     "set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@example.com]",
70     "set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
71     "set rfc822Name: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
72     NULL
73 };
74 
is_exception(const char * msg)75 static int is_exception(const char *msg)
76 {
77     const char *const *p;
78 
79     for (p = exceptions; *p; ++p)
80         if (strcmp(msg, *p) == 0)
81             return 1;
82     return 0;
83 }
84 
set_cn(X509 * crt,...)85 static int set_cn(X509 *crt, ...)
86 {
87     int ret = 0;
88     X509_NAME *n = NULL;
89     va_list ap;
90 
91     va_start(ap, crt);
92     n = X509_NAME_new();
93     if (n == NULL)
94         goto out;
95 
96     while (1) {
97         int nid;
98         const char *name;
99 
100         nid = va_arg(ap, int);
101         if (nid == 0)
102             break;
103         name = va_arg(ap, const char *);
104         if (!X509_NAME_add_entry_by_NID(n, nid, MBSTRING_ASC,
105                                         (unsigned char *)name, -1, -1, 1))
106             goto out;
107     }
108     if (!X509_set_subject_name(crt, n))
109         goto out;
110     ret = 1;
111  out:
112     X509_NAME_free(n);
113     va_end(ap);
114     return ret;
115 }
116 
117 /*-
118 int             X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
119 X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex,
120                         int nid, int crit, ASN1_OCTET_STRING *data);
121 int             X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
122 */
123 
set_altname(X509 * crt,...)124 static int set_altname(X509 *crt, ...)
125 {
126     int ret = 0;
127     GENERAL_NAMES *gens = NULL;
128     GENERAL_NAME *gen = NULL;
129     ASN1_IA5STRING *ia5 = NULL;
130     va_list ap;
131     va_start(ap, crt);
132     gens = sk_GENERAL_NAME_new_null();
133     if (gens == NULL)
134         goto out;
135     while (1) {
136         int type;
137         const char *name;
138         type = va_arg(ap, int);
139         if (type == 0)
140             break;
141         name = va_arg(ap, const char *);
142 
143         gen = GENERAL_NAME_new();
144         if (gen == NULL)
145             goto out;
146         ia5 = ASN1_IA5STRING_new();
147         if (ia5 == NULL)
148             goto out;
149         if (!ASN1_STRING_set(ia5, name, -1))
150             goto out;
151         switch (type) {
152         case GEN_EMAIL:
153         case GEN_DNS:
154             GENERAL_NAME_set0_value(gen, type, ia5);
155             ia5 = NULL;
156             break;
157         default:
158             abort();
159         }
160         if (!sk_GENERAL_NAME_push(gens, gen))
161             goto out;
162         gen = NULL;
163     }
164     if (!X509_add1_ext_i2d(crt, NID_subject_alt_name, gens, 0, 0))
165         goto out;
166     ret = 1;
167  out:
168     ASN1_IA5STRING_free(ia5);
169     GENERAL_NAME_free(gen);
170     GENERAL_NAMES_free(gens);
171     va_end(ap);
172     return ret;
173 }
174 
set_cn1(X509 * crt,const char * name)175 static int set_cn1(X509 *crt, const char *name)
176 {
177     return set_cn(crt, NID_commonName, name, 0);
178 }
179 
set_cn_and_email(X509 * crt,const char * name)180 static int set_cn_and_email(X509 *crt, const char *name)
181 {
182     return set_cn(crt, NID_commonName, name,
183                   NID_pkcs9_emailAddress, "dummy@example.com", 0);
184 }
185 
set_cn2(X509 * crt,const char * name)186 static int set_cn2(X509 *crt, const char *name)
187 {
188     return set_cn(crt, NID_commonName, "dummy value",
189                   NID_commonName, name, 0);
190 }
191 
set_cn3(X509 * crt,const char * name)192 static int set_cn3(X509 *crt, const char *name)
193 {
194     return set_cn(crt, NID_commonName, name,
195                   NID_commonName, "dummy value", 0);
196 }
197 
set_email1(X509 * crt,const char * name)198 static int set_email1(X509 *crt, const char *name)
199 {
200     return set_cn(crt, NID_pkcs9_emailAddress, name, 0);
201 }
202 
set_email2(X509 * crt,const char * name)203 static int set_email2(X509 *crt, const char *name)
204 {
205     return set_cn(crt, NID_pkcs9_emailAddress, "dummy@example.com",
206                   NID_pkcs9_emailAddress, name, 0);
207 }
208 
set_email3(X509 * crt,const char * name)209 static int set_email3(X509 *crt, const char *name)
210 {
211     return set_cn(crt, NID_pkcs9_emailAddress, name,
212                   NID_pkcs9_emailAddress, "dummy@example.com", 0);
213 }
214 
set_email_and_cn(X509 * crt,const char * name)215 static int set_email_and_cn(X509 *crt, const char *name)
216 {
217     return set_cn(crt, NID_pkcs9_emailAddress, name,
218                   NID_commonName, "www.example.org", 0);
219 }
220 
set_altname_dns(X509 * crt,const char * name)221 static int set_altname_dns(X509 *crt, const char *name)
222 {
223     return set_altname(crt, GEN_DNS, name, 0);
224 }
225 
set_altname_email(X509 * crt,const char * name)226 static int set_altname_email(X509 *crt, const char *name)
227 {
228     return set_altname(crt, GEN_EMAIL, name, 0);
229 }
230 
231 struct set_name_fn {
232     int (*fn) (X509 *, const char *);
233     const char *name;
234     int host;
235     int email;
236 };
237 
238 static const struct set_name_fn name_fns[] = {
239     {set_cn1, "set CN", 1, 0},
240     {set_cn2, "set CN", 1, 0},
241     {set_cn3, "set CN", 1, 0},
242     {set_cn_and_email, "set CN", 1, 0},
243     {set_email1, "set emailAddress", 0, 1},
244     {set_email2, "set emailAddress", 0, 1},
245     {set_email3, "set emailAddress", 0, 1},
246     {set_email_and_cn, "set emailAddress", 0, 1},
247     {set_altname_dns, "set dnsName", 1, 0},
248     {set_altname_email, "set rfc822Name", 0, 1},
249 };
250 
make_cert(void)251 static X509 *make_cert(void)
252 {
253     X509 *crt = NULL;
254 
255     if (!TEST_ptr(crt = X509_new()))
256         return NULL;
257     if (!TEST_true(X509_set_version(crt, X509_VERSION_3))) {
258         X509_free(crt);
259         return NULL;
260     }
261     return crt;
262 }
263 
check_message(const struct set_name_fn * fn,const char * op,const char * nameincert,int match,const char * name)264 static int check_message(const struct set_name_fn *fn, const char *op,
265                          const char *nameincert, int match, const char *name)
266 {
267     char msg[1024];
268 
269     if (match < 0)
270         return 1;
271     BIO_snprintf(msg, sizeof(msg), "%s: %s: [%s] %s [%s]",
272                  fn->name, op, nameincert,
273                  match ? "matches" : "does not match", name);
274     if (is_exception(msg))
275         return 1;
276     TEST_error("%s", msg);
277     return 0;
278 }
279 
run_cert(X509 * crt,const char * nameincert,const struct set_name_fn * fn)280 static int run_cert(X509 *crt, const char *nameincert,
281                      const struct set_name_fn *fn)
282 {
283     const char *const *pname = names;
284     int failed = 0;
285 
286     for (; *pname != NULL; ++pname) {
287         int samename = OPENSSL_strcasecmp(nameincert, *pname) == 0;
288         size_t namelen = strlen(*pname);
289         char *name = OPENSSL_malloc(namelen + 1);
290         int match, ret;
291 
292         if (!TEST_ptr(name))
293             return 0;
294         memcpy(name, *pname, namelen + 1);
295 
296         match = -1;
297         if (!TEST_int_ge(ret = X509_check_host(crt, name, namelen, 0, NULL),
298                          0)) {
299             failed = 1;
300         } else if (fn->host) {
301             if (ret == 1 && !samename)
302                 match = 1;
303             if (ret == 0 && samename)
304                 match = 0;
305         } else if (ret == 1)
306             match = 1;
307         if (!TEST_true(check_message(fn, "host", nameincert, match, *pname)))
308             failed = 1;
309 
310         match = -1;
311         if (!TEST_int_ge(ret = X509_check_host(crt, name, namelen,
312                                                X509_CHECK_FLAG_NO_WILDCARDS,
313                                                NULL), 0)) {
314             failed = 1;
315         } else if (fn->host) {
316             if (ret == 1 && !samename)
317                 match = 1;
318             if (ret == 0 && samename)
319                 match = 0;
320         } else if (ret == 1)
321             match = 1;
322         if (!TEST_true(check_message(fn, "host-no-wildcards",
323                                      nameincert, match, *pname)))
324             failed = 1;
325 
326         match = -1;
327         ret = X509_check_email(crt, name, namelen, 0);
328         if (fn->email) {
329             if (ret && !samename)
330                 match = 1;
331             if (!ret && samename && strchr(nameincert, '@') != NULL)
332                 match = 0;
333         } else if (ret)
334             match = 1;
335         if (!TEST_true(check_message(fn, "email", nameincert, match, *pname)))
336             failed = 1;
337         OPENSSL_free(name);
338     }
339 
340     return failed == 0;
341 }
342 
call_run_cert(int i)343 static int call_run_cert(int i)
344 {
345     int failed = 0;
346     const struct set_name_fn *pfn = &name_fns[i];
347     X509 *crt;
348     const char *const *pname;
349 
350     TEST_info("%s", pfn->name);
351     for (pname = names; *pname != NULL; pname++) {
352         if (!TEST_ptr(crt = make_cert())
353              || !TEST_true(pfn->fn(crt, *pname))
354              || !run_cert(crt, *pname, pfn))
355             failed = 1;
356         X509_free(crt);
357     }
358     return failed == 0;
359 }
360 
361 static struct gennamedata {
362     const unsigned char der[22];
363     size_t derlen;
364 } gennames[] = {
365     {
366         /*
367         * [0] {
368         *   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
369         *   [0] {
370         *     SEQUENCE {}
371         *   }
372         * }
373         */
374         {
375             0xa0, 0x13, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
376             0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x02, 0x30, 0x00
377         },
378         21
379     }, {
380         /*
381         * [0] {
382         *   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
383         *   [0] {
384         *     [APPLICATION 0] {}
385         *   }
386         * }
387         */
388         {
389             0xa0, 0x13, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
390             0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x02, 0x60, 0x00
391         },
392         21
393     }, {
394         /*
395         * [0] {
396         *   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
397         *   [0] {
398         *     UTF8String { "a" }
399         *   }
400         * }
401         */
402         {
403             0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
404             0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x0c, 0x01, 0x61
405         },
406         22
407     }, {
408         /*
409         * [0] {
410         *   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.2 }
411         *   [0] {
412         *     UTF8String { "a" }
413         *   }
414         * }
415         */
416         {
417             0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
418             0x01, 0x84, 0xb7, 0x09, 0x02, 0x02, 0xa0, 0x03, 0x0c, 0x01, 0x61
419         },
420         22
421     }, {
422         /*
423         * [0] {
424         *   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
425         *   [0] {
426         *     UTF8String { "b" }
427         *   }
428         * }
429         */
430         {
431             0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
432             0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x0c, 0x01, 0x62
433         },
434         22
435     }, {
436         /*
437         * [0] {
438         *   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
439         *   [0] {
440         *     BOOLEAN { TRUE }
441         *   }
442         * }
443         */
444         {
445             0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
446             0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x01, 0x01, 0xff
447         },
448         22
449     }, {
450         /*
451         * [0] {
452         *   OBJECT_IDENTIFIER { 1.2.840.113554.4.1.72585.2.1 }
453         *   [0] {
454         *     BOOLEAN { FALSE }
455         *   }
456         * }
457         */
458         {
459             0xa0, 0x14, 0x06, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04,
460             0x01, 0x84, 0xb7, 0x09, 0x02, 0x01, 0xa0, 0x03, 0x01, 0x01, 0x00
461         },
462         22
463     }, {
464         /* [1 PRIMITIVE] { "a" } */
465         {
466             0x81, 0x01, 0x61
467         },
468         3
469     }, {
470         /* [1 PRIMITIVE] { "b" } */
471         {
472             0x81, 0x01, 0x62
473         },
474         3
475     }, {
476         /* [2 PRIMITIVE] { "a" } */
477         {
478             0x82, 0x01, 0x61
479         },
480         3
481     }, {
482         /* [2 PRIMITIVE] { "b" } */
483         {
484             0x82, 0x01, 0x62
485         },
486         3
487     }, {
488         /*
489         * [4] {
490         *   SEQUENCE {
491         *     SET {
492         *       SEQUENCE {
493         *         # commonName
494         *         OBJECT_IDENTIFIER { 2.5.4.3 }
495         *         UTF8String { "a" }
496         *       }
497         *     }
498         *   }
499         * }
500         */
501         {
502             0xa4, 0x0e, 0x30, 0x0c, 0x31, 0x0a, 0x30, 0x08, 0x06, 0x03, 0x55,
503             0x04, 0x03, 0x0c, 0x01, 0x61
504         },
505         16
506     }, {
507         /*
508         * [4] {
509         *   SEQUENCE {
510         *     SET {
511         *       SEQUENCE {
512         *         # commonName
513         *         OBJECT_IDENTIFIER { 2.5.4.3 }
514         *         UTF8String { "b" }
515         *       }
516         *     }
517         *   }
518         * }
519         */
520         {
521             0xa4, 0x0e, 0x30, 0x0c, 0x31, 0x0a, 0x30, 0x08, 0x06, 0x03, 0x55,
522             0x04, 0x03, 0x0c, 0x01, 0x62
523         },
524         16
525     }, {
526         /*
527         * [5] {
528         *   [1] {
529         *     UTF8String { "a" }
530         *   }
531         * }
532         */
533         {
534             0xa5, 0x05, 0xa1, 0x03, 0x0c, 0x01, 0x61
535         },
536         7
537     }, {
538         /*
539         * [5] {
540         *   [1] {
541         *     UTF8String { "b" }
542         *   }
543         * }
544         */
545         {
546             0xa5, 0x05, 0xa1, 0x03, 0x0c, 0x01, 0x62
547         },
548         7
549     }, {
550         /*
551         * [5] {
552         *   [0] {
553         *     UTF8String {}
554         *   }
555         *   [1] {
556         *     UTF8String { "a" }
557         *   }
558         * }
559         */
560         {
561             0xa5, 0x09, 0xa0, 0x02, 0x0c, 0x00, 0xa1, 0x03, 0x0c, 0x01, 0x61
562         },
563         11
564     }, {
565         /*
566         * [5] {
567         *   [0] {
568         *     UTF8String { "a" }
569         *   }
570         *   [1] {
571         *     UTF8String { "a" }
572         *   }
573         * }
574         */
575         {
576             0xa5, 0x0a, 0xa0, 0x03, 0x0c, 0x01, 0x61, 0xa1, 0x03, 0x0c, 0x01,
577             0x61
578         },
579         12
580     }, {
581         /*
582         * [5] {
583         *   [0] {
584         *     UTF8String { "b" }
585         *   }
586         *   [1] {
587         *     UTF8String { "a" }
588         *   }
589         * }
590         */
591         {
592             0xa5, 0x0a, 0xa0, 0x03, 0x0c, 0x01, 0x62, 0xa1, 0x03, 0x0c, 0x01,
593             0x61
594         },
595         12
596     }, {
597         /* [6 PRIMITIVE] { "a" } */
598         {
599             0x86, 0x01, 0x61
600         },
601         3
602     }, {
603         /* [6 PRIMITIVE] { "b" } */
604         {
605             0x86, 0x01, 0x62
606         },
607         3
608     }, {
609         /* [7 PRIMITIVE] { `11111111` } */
610         {
611             0x87, 0x04, 0x11, 0x11, 0x11, 0x11
612         },
613         6
614     }, {
615         /* [7 PRIMITIVE] { `22222222`} */
616         {
617             0x87, 0x04, 0x22, 0x22, 0x22, 0x22
618         },
619         6
620     }, {
621         /* [7 PRIMITIVE] { `11111111111111111111111111111111` } */
622         {
623             0x87, 0x10, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
624             0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11
625         },
626         18
627     }, {
628         /* [7 PRIMITIVE] { `22222222222222222222222222222222` } */
629         {
630             0x87, 0x10, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
631             0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22
632         },
633         18
634     }, {
635         /* [8 PRIMITIVE] { 1.2.840.113554.4.1.72585.2.1 } */
636         {
637             0x88, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04, 0x01, 0x84,
638             0xb7, 0x09, 0x02, 0x01
639         },
640         15
641     }, {
642         /* [8 PRIMITIVE] { 1.2.840.113554.4.1.72585.2.2 } */
643         {
644             0x88, 0x0d, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x12, 0x04, 0x01, 0x84,
645             0xb7, 0x09, 0x02, 0x02
646         },
647         15
648     }, {
649         /*
650          * Regression test for CVE-2023-0286.
651          */
652         {
653             0xa3, 0x00
654         },
655         2
656     }
657 };
658 
test_GENERAL_NAME_cmp(void)659 static int test_GENERAL_NAME_cmp(void)
660 {
661     size_t i, j;
662     GENERAL_NAME **namesa = OPENSSL_malloc(sizeof(*namesa)
663                                            * OSSL_NELEM(gennames));
664     GENERAL_NAME **namesb = OPENSSL_malloc(sizeof(*namesb)
665                                            * OSSL_NELEM(gennames));
666     int testresult = 0;
667 
668     if (!TEST_ptr(namesa) || !TEST_ptr(namesb))
669         goto end;
670 
671     for (i = 0; i < OSSL_NELEM(gennames); i++) {
672         const unsigned char *derp = gennames[i].der;
673 
674         /*
675          * We create two versions of each GENERAL_NAME so that we ensure when
676          * we compare them they are always different pointers.
677          */
678         namesa[i] = d2i_GENERAL_NAME(NULL, &derp, gennames[i].derlen);
679         derp = gennames[i].der;
680         namesb[i] = d2i_GENERAL_NAME(NULL, &derp, gennames[i].derlen);
681         if (!TEST_ptr(namesa[i]) || !TEST_ptr(namesb[i]))
682             goto end;
683     }
684 
685     /* Every name should be equal to itself and not equal to any others. */
686     for (i = 0; i < OSSL_NELEM(gennames); i++) {
687         for (j = 0; j < OSSL_NELEM(gennames); j++) {
688             if (i == j) {
689                 if (!TEST_int_eq(GENERAL_NAME_cmp(namesa[i], namesb[j]), 0))
690                     goto end;
691             } else {
692                 if (!TEST_int_ne(GENERAL_NAME_cmp(namesa[i], namesb[j]), 0))
693                     goto end;
694             }
695         }
696     }
697     testresult = 1;
698 
699  end:
700     for (i = 0; i < OSSL_NELEM(gennames); i++) {
701         if (namesa != NULL)
702             GENERAL_NAME_free(namesa[i]);
703         if (namesb != NULL)
704             GENERAL_NAME_free(namesb[i]);
705     }
706     OPENSSL_free(namesa);
707     OPENSSL_free(namesb);
708 
709     return testresult;
710 }
711 
setup_tests(void)712 int setup_tests(void)
713 {
714     ADD_ALL_TESTS(call_run_cert, OSSL_NELEM(name_fns));
715     ADD_TEST(test_GENERAL_NAME_cmp);
716     return 1;
717 }
718