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