test/v3nametest.c

   1 /*
   2  * Copyright 2012-2018 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 #ifdef OPENSSL_SYS_WINDOWS
  19 # define strcasecmp _stricmp
  20 #endif
  21
  22 DEFINE_STACK_OF(GENERAL_NAME)
  23
  24 static const char *const names[] = {
  25     "a", "b", ".", "*", "@",
  26     ".a", "a.", ".b", "b.", ".*", "*.", "*@", "@*", "a@", "@a", "b@", "..",
  27     "-example.com", "example-.com",
  28     "@@", "**", "*.com", "*com", "*.*.com", "*com", "com*", "*example.com",
  29     "*@example.com", "test@*.example.com", "example.com", "www.example.com",
  30     "test.www.example.com", "*.example.com", "*.www.example.com",
  31     "test.*.example.com", "www.*.com",
  32     ".www.example.com", "*www.example.com",
  33     "example.net", "xn--rger-koa.example.com",
  34     "*.xn--rger-koa.example.com", "www.xn--rger-koa.example.com",
  35     "*.good--example.com", "www.good--example.com",
  36     "*.xn--bar.com", "xn--foo.xn--bar.com",
  37     "a.example.com", "b.example.com",
  38     "postmaster@example.com", "Postmaster@example.com",
  39     "postmaster@EXAMPLE.COM",
  40     NULL
  41 };
  42
  43 static const char *const exceptions[] = {
  44     "set CN: host: [*.example.com] matches [a.example.com]",
  45     "set CN: host: [*.example.com] matches [b.example.com]",
  46     "set CN: host: [*.example.com] matches [www.example.com]",
  47     "set CN: host: [*.example.com] matches [xn--rger-koa.example.com]",
  48     "set CN: host: [*.www.example.com] matches [test.www.example.com]",
  49     "set CN: host: [*.www.example.com] matches [.www.example.com]",
  50     "set CN: host: [*www.example.com] matches [www.example.com]",
  51     "set CN: host: [test.www.example.com] matches [.www.example.com]",
  52     "set CN: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
  53     "set CN: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
  54     "set CN: host: [*.good--example.com] matches [www.good--example.com]",
  55     "set CN: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
  56     "set CN: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
  57     "set emailAddress: email: [postmaster@example.com] does not match [Postmaster@example.com]",
  58     "set emailAddress: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
  59     "set emailAddress: email: [Postmaster@example.com] does not match [postmaster@example.com]",
  60     "set emailAddress: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
  61     "set dnsName: host: [*.example.com] matches [www.example.com]",
  62     "set dnsName: host: [*.example.com] matches [a.example.com]",
  63     "set dnsName: host: [*.example.com] matches [b.example.com]",
  64     "set dnsName: host: [*.example.com] matches [xn--rger-koa.example.com]",
  65     "set dnsName: host: [*.www.example.com] matches [test.www.example.com]",
  66     "set dnsName: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
  67     "set dnsName: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
  68     "set dnsName: host: [*.www.example.com] matches [.www.example.com]",
  69     "set dnsName: host: [*www.example.com] matches [www.example.com]",
  70     "set dnsName: host: [test.www.example.com] matches [.www.example.com]",
  71     "set dnsName: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
  72     "set dnsName: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
  73     "set dnsName: host: [*.good--example.com] matches [www.good--example.com]",
  74     "set rfc822Name: email: [postmaster@example.com] does not match [Postmaster@example.com]",
  75     "set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@example.com]",
  76     "set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
  77     "set rfc822Name: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
  78     NULL
  79 };
  80
  81 static int is_exception(const char *msg)
  82 {
  83     const char *const *p;
  84
  85     for (p = exceptions; *p; ++p)
  86         if (strcmp(msg, *p) == 0)
  87             return 1;
  88     return 0;
  89 }
  90
  91 static int set_cn(X509 *crt, ...)
  92 {
  93     int ret = 0;
  94     X509_NAME *n = NULL;
  95     va_list ap;
  96
  97     va_start(ap, crt);
  98     n = X509_NAME_new();
  99     if (n == NULL)
 100         goto out;
 101
 102     while (1) {
 103         int nid;
 104         const char *name;
 105
 106         nid = va_arg(ap, int);
 107         if (nid == 0)
 108             break;
 109         name = va_arg(ap, const char *);
 110         if (!X509_NAME_add_entry_by_NID(n, nid, MBSTRING_ASC,
 111                                         (unsigned char *)name, -1, -1, 1))
 112             goto out;
 113     }
 114     if (!X509_set_subject_name(crt, n))
 115         goto out;
 116     ret = 1;
 117  out:
 118     X509_NAME_free(n);
 119     va_end(ap);
 120     return ret;
 121 }
 122
 123 /*-
 124 int             X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
 125 X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex,
 126                         int nid, int crit, ASN1_OCTET_STRING *data);
 127 int             X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
 128 */
 129
 130 static int set_altname(X509 *crt, ...)
 131 {
 132     int ret = 0;
 133     GENERAL_NAMES *gens = NULL;
 134     GENERAL_NAME *gen = NULL;
 135     ASN1_IA5STRING *ia5 = NULL;
 136     va_list ap;
 137     va_start(ap, crt);
 138     gens = sk_GENERAL_NAME_new_null();
 139     if (gens == NULL)
 140         goto out;
 141     while (1) {
 142         int type;
 143         const char *name;
 144         type = va_arg(ap, int);
 145         if (type == 0)
 146             break;
 147         name = va_arg(ap, const char *);
 148
 149         gen = GENERAL_NAME_new();
 150         if (gen == NULL)
 151             goto out;
 152         ia5 = ASN1_IA5STRING_new();
 153         if (ia5 == NULL)
 154             goto out;
 155         if (!ASN1_STRING_set(ia5, name, -1))
 156             goto out;
 157         switch (type) {
 158         case GEN_EMAIL:
 159         case GEN_DNS:
 160             GENERAL_NAME_set0_value(gen, type, ia5);
 161             ia5 = NULL;
 162             break;
 163         default:
 164             abort();
 165         }
 166         sk_GENERAL_NAME_push(gens, gen);
 167         gen = NULL;
 168     }
 169     if (!X509_add1_ext_i2d(crt, NID_subject_alt_name, gens, 0, 0))
 170         goto out;
 171     ret = 1;
 172  out:
 173     ASN1_IA5STRING_free(ia5);
 174     GENERAL_NAME_free(gen);
 175     GENERAL_NAMES_free(gens);
 176     va_end(ap);
 177     return ret;
 178 }
 179
 180 static int set_cn1(X509 *crt, const char *name)
 181 {
 182     return set_cn(crt, NID_commonName, name, 0);
 183 }
 184
 185 static int set_cn_and_email(X509 *crt, const char *name)
 186 {
 187     return set_cn(crt, NID_commonName, name,
 188                   NID_pkcs9_emailAddress, "dummy@example.com", 0);
 189 }
 190
 191 static int set_cn2(X509 *crt, const char *name)
 192 {
 193     return set_cn(crt, NID_commonName, "dummy value",
 194                   NID_commonName, name, 0);
 195 }
 196
 197 static int set_cn3(X509 *crt, const char *name)
 198 {
 199     return set_cn(crt, NID_commonName, name,
 200                   NID_commonName, "dummy value", 0);
 201 }
 202
 203 static int set_email1(X509 *crt, const char *name)
 204 {
 205     return set_cn(crt, NID_pkcs9_emailAddress, name, 0);
 206 }
 207
 208 static int set_email2(X509 *crt, const char *name)
 209 {
 210     return set_cn(crt, NID_pkcs9_emailAddress, "dummy@example.com",
 211                   NID_pkcs9_emailAddress, name, 0);
 212 }
 213
 214 static int set_email3(X509 *crt, const char *name)
 215 {
 216     return set_cn(crt, NID_pkcs9_emailAddress, name,
 217                   NID_pkcs9_emailAddress, "dummy@example.com", 0);
 218 }
 219
 220 static int set_email_and_cn(X509 *crt, const char *name)
 221 {
 222     return set_cn(crt, NID_pkcs9_emailAddress, name,
 223                   NID_commonName, "www.example.org", 0);
 224 }
 225
 226 static int set_altname_dns(X509 *crt, const char *name)
 227 {
 228     return set_altname(crt, GEN_DNS, name, 0);
 229 }
 230
 231 static int set_altname_email(X509 *crt, const char *name)
 232 {
 233     return set_altname(crt, GEN_EMAIL, name, 0);
 234 }
 235
 236 struct set_name_fn {
 237     int (*fn) (X509 *, const char *);
 238     const char *name;
 239     int host;
 240     int email;
 241 };
 242
 243 static const struct set_name_fn name_fns[] = {
 244     {set_cn1, "set CN", 1, 0},
 245     {set_cn2, "set CN", 1, 0},
 246     {set_cn3, "set CN", 1, 0},
 247     {set_cn_and_email, "set CN", 1, 0},
 248     {set_email1, "set emailAddress", 0, 1},
 249     {set_email2, "set emailAddress", 0, 1},
 250     {set_email3, "set emailAddress", 0, 1},
 251     {set_email_and_cn, "set emailAddress", 0, 1},
 252     {set_altname_dns, "set dnsName", 1, 0},
 253     {set_altname_email, "set rfc822Name", 0, 1},
 254 };
 255
 256 static X509 *make_cert(void)
 257 {
 258     X509 *crt = NULL;
 259
 260     if (!TEST_ptr(crt = X509_new()))
 261         return NULL;
 262     if (!TEST_true(X509_set_version(crt, 2))) {
 263         X509_free(crt);
 264         return NULL;
 265     }
 266     return crt;
 267 }
 268
 269 static int check_message(const struct set_name_fn *fn, const char *op,
 270                          const char *nameincert, int match, const char *name)
 271 {
 272     char msg[1024];
 273
 274     if (match < 0)
 275         return 1;
 276     BIO_snprintf(msg, sizeof(msg), "%s: %s: [%s] %s [%s]",
 277                  fn->name, op, nameincert,
 278                  match ? "matches" : "does not match", name);
 279     if (is_exception(msg))
 280         return 1;
 281     TEST_error("%s", msg);
 282     return 0;
 283 }
 284
 285 static int run_cert(X509 *crt, const char *nameincert,
 286                      const struct set_name_fn *fn)
 287 {
 288     const char *const *pname = names;
 289     int failed = 0;
 290
 291     for (; *pname != NULL; ++pname) {
 292         int samename = strcasecmp(nameincert, *pname) == 0;
 293         size_t namelen = strlen(*pname);
 294         char *name = OPENSSL_malloc(namelen);
 295         int match, ret;
 296
 297         memcpy(name, *pname, namelen);
 298
 299         match = -1;
 300         if (!TEST_int_ge(ret = X509_check_host(crt, name, namelen, 0, NULL),
 301                          0)) {
 302             failed = 1;
 303         } else if (fn->host) {
 304             if (ret == 1 && !samename)
 305                 match = 1;
 306             if (ret == 0 && samename)
 307                 match = 0;
 308         } else if (ret == 1)
 309             match = 1;
 310         if (!TEST_true(check_message(fn, "host", nameincert, match, *pname)))
 311             failed = 1;
 312
 313         match = -1;
 314         if (!TEST_int_ge(ret = X509_check_host(crt, name, namelen,
 315                                                X509_CHECK_FLAG_NO_WILDCARDS,
 316                                                NULL), 0)) {
 317             failed = 1;
 318         } else if (fn->host) {
 319             if (ret == 1 && !samename)
 320                 match = 1;
 321             if (ret == 0 && samename)
 322                 match = 0;
 323         } else if (ret == 1)
 324             match = 1;
 325         if (!TEST_true(check_message(fn, "host-no-wildcards",
 326                                      nameincert, match, *pname)))
 327             failed = 1;
 328
 329         match = -1;
 330         ret = X509_check_email(crt, name, namelen, 0);
 331         if (fn->email) {
 332             if (ret && !samename)
 333                 match = 1;
 334             if (!ret && samename && strchr(nameincert, '@') != NULL)
 335                 match = 0;
 336         } else if (ret)
 337             match = 1;
 338         if (!TEST_true(check_message(fn, "email", nameincert, match, *pname)))
 339             failed = 1;
 340         OPENSSL_free(name);
 341     }
 342
 343     return failed == 0;
 344 }
 345
 346 static int call_run_cert(int i)
 347 {
 348     int failed = 0;
 349     const struct set_name_fn *pfn = &name_fns[i];
 350     X509 *crt;
 351     const char *const *pname;
 352
 353     TEST_info("%s", pfn->name);
 354     for (pname = names; *pname != NULL; pname++) {
 355         if (!TEST_ptr(crt = make_cert())
 356              || !TEST_true(pfn->fn(crt, *pname))
 357              || !run_cert(crt, *pname, pfn))
 358             failed = 1;
 359         X509_free(crt);
 360     }
 361     return failed == 0;
 362 }
 363
 364 int setup_tests(void)
 365 {
 366     ADD_ALL_TESTS(call_run_cert, OSSL_NELEM(name_fns));
 367     return 1;
 368 }