test/v3nametest.c

   1 /*
   2  * Copyright 2012-2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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 #include "internal/nelem.h"
  12 #include "../e_os.h"
  13 #include <openssl/x509.h>
  14 #include <openssl/x509v3.h>
  15 #include "testutil.h"
  16
  17 static const char *const names[] = {
  18     "a", "b", ".", "*", "@",
  19     ".a", "a.", ".b", "b.", ".*", "*.", "*@", "@*", "a@", "@a", "b@", "..",
  20     "-example.com", "example-.com",
  21     "@@", "**", "*.com", "*com", "*.*.com", "*com", "com*", "*example.com",
  22     "*@example.com", "test@*.example.com", "example.com", "www.example.com",
  23     "test.www.example.com", "*.example.com", "*.www.example.com",
  24     "test.*.example.com", "www.*.com",
  25     ".www.example.com", "*www.example.com",
  26     "example.net", "xn--rger-koa.example.com",
  27     "*.xn--rger-koa.example.com", "www.xn--rger-koa.example.com",
  28     "*.good--example.com", "www.good--example.com",
  29     "*.xn--bar.com", "xn--foo.xn--bar.com",
  30     "a.example.com", "b.example.com",
  31     "postmaster@example.com", "Postmaster@example.com",
  32     "postmaster@EXAMPLE.COM",
  33     NULL
  34 };
  35
  36 static const char *const exceptions[] = {
  37     "set CN: host: [*.example.com] matches [a.example.com]",
  38     "set CN: host: [*.example.com] matches [b.example.com]",
  39     "set CN: host: [*.example.com] matches [www.example.com]",
  40     "set CN: host: [*.example.com] matches [xn--rger-koa.example.com]",
  41     "set CN: host: [*.www.example.com] matches [test.www.example.com]",
  42     "set CN: host: [*.www.example.com] matches [.www.example.com]",
  43     "set CN: host: [*www.example.com] matches [www.example.com]",
  44     "set CN: host: [test.www.example.com] matches [.www.example.com]",
  45     "set CN: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
  46     "set CN: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
  47     "set CN: host: [*.good--example.com] matches [www.good--example.com]",
  48     "set CN: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
  49     "set CN: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
  50     "set emailAddress: email: [postmaster@example.com] does not match [Postmaster@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 dnsName: host: [*.example.com] matches [www.example.com]",
  55     "set dnsName: host: [*.example.com] matches [a.example.com]",
  56     "set dnsName: host: [*.example.com] matches [b.example.com]",
  57     "set dnsName: host: [*.example.com] matches [xn--rger-koa.example.com]",
  58     "set dnsName: host: [*.www.example.com] matches [test.www.example.com]",
  59     "set dnsName: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
  60     "set dnsName: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
  61     "set dnsName: host: [*.www.example.com] matches [.www.example.com]",
  62     "set dnsName: host: [*www.example.com] matches [www.example.com]",
  63     "set dnsName: host: [test.www.example.com] matches [.www.example.com]",
  64     "set dnsName: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
  65     "set dnsName: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
  66     "set dnsName: host: [*.good--example.com] matches [www.good--example.com]",
  67     "set rfc822Name: email: [postmaster@example.com] does not match [Postmaster@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     NULL
  72 };
  73
  74 static int is_exception(const char *msg)
  75 {
  76     const char *const *p;
  77
  78     for (p = exceptions; *p; ++p)
  79         if (strcmp(msg, *p) == 0)
  80             return 1;
  81     return 0;
  82 }
  83
  84 static int set_cn(X509 *crt, ...)
  85 {
  86     int ret = 0;
  87     X509_NAME *n = NULL;
  88     va_list ap;
  89
  90     va_start(ap, crt);
  91     n = X509_NAME_new();
  92     if (n == NULL)
  93         goto out;
  94
  95     while (1) {
  96         int nid;
  97         const char *name;
  98
  99         nid = va_arg(ap, int);
 100         if (nid == 0)
 101             break;
 102         name = va_arg(ap, const char *);
 103         if (!X509_NAME_add_entry_by_NID(n, nid, MBSTRING_ASC,
 104                                         (unsigned char *)name, -1, -1, 1))
 105             goto out;
 106     }
 107     if (!X509_set_subject_name(crt, n))
 108         goto out;
 109     ret = 1;
 110  out:
 111     X509_NAME_free(n);
 112     va_end(ap);
 113     return ret;
 114 }
 115
 116 /*-
 117 int             X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
 118 X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex,
 119                         int nid, int crit, ASN1_OCTET_STRING *data);
 120 int             X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
 121 */
 122
 123 static int set_altname(X509 *crt, ...)
 124 {
 125     int ret = 0;
 126     GENERAL_NAMES *gens = NULL;
 127     GENERAL_NAME *gen = NULL;
 128     ASN1_IA5STRING *ia5 = NULL;
 129     va_list ap;
 130     va_start(ap, crt);
 131     gens = sk_GENERAL_NAME_new_null();
 132     if (gens == NULL)
 133         goto out;
 134     while (1) {
 135         int type;
 136         const char *name;
 137         type = va_arg(ap, int);
 138         if (type == 0)
 139             break;
 140         name = va_arg(ap, const char *);
 141
 142         gen = GENERAL_NAME_new();
 143         if (gen == NULL)
 144             goto out;
 145         ia5 = ASN1_IA5STRING_new();
 146         if (ia5 == NULL)
 147             goto out;
 148         if (!ASN1_STRING_set(ia5, name, -1))
 149             goto out;
 150         switch (type) {
 151         case GEN_EMAIL:
 152         case GEN_DNS:
 153             GENERAL_NAME_set0_value(gen, type, ia5);
 154             ia5 = NULL;
 155             break;
 156         default:
 157             abort();
 158         }
 159         sk_GENERAL_NAME_push(gens, gen);
 160         gen = NULL;
 161     }
 162     if (!X509_add1_ext_i2d(crt, NID_subject_alt_name, gens, 0, 0))
 163         goto out;
 164     ret = 1;
 165  out:
 166     ASN1_IA5STRING_free(ia5);
 167     GENERAL_NAME_free(gen);
 168     GENERAL_NAMES_free(gens);
 169     va_end(ap);
 170     return ret;
 171 }
 172
 173 static int set_cn1(X509 *crt, const char *name)
 174 {
 175     return set_cn(crt, NID_commonName, name, 0);
 176 }
 177
 178 static int set_cn_and_email(X509 *crt, const char *name)
 179 {
 180     return set_cn(crt, NID_commonName, name,
 181                   NID_pkcs9_emailAddress, "dummy@example.com", 0);
 182 }
 183
 184 static int set_cn2(X509 *crt, const char *name)
 185 {
 186     return set_cn(crt, NID_commonName, "dummy value",
 187                   NID_commonName, name, 0);
 188 }
 189
 190 static int set_cn3(X509 *crt, const char *name)
 191 {
 192     return set_cn(crt, NID_commonName, name,
 193                   NID_commonName, "dummy value", 0);
 194 }
 195
 196 static int set_email1(X509 *crt, const char *name)
 197 {
 198     return set_cn(crt, NID_pkcs9_emailAddress, name, 0);
 199 }
 200
 201 static int set_email2(X509 *crt, const char *name)
 202 {
 203     return set_cn(crt, NID_pkcs9_emailAddress, "dummy@example.com",
 204                   NID_pkcs9_emailAddress, name, 0);
 205 }
 206
 207 static int set_email3(X509 *crt, const char *name)
 208 {
 209     return set_cn(crt, NID_pkcs9_emailAddress, name,
 210                   NID_pkcs9_emailAddress, "dummy@example.com", 0);
 211 }
 212
 213 static int set_email_and_cn(X509 *crt, const char *name)
 214 {
 215     return set_cn(crt, NID_pkcs9_emailAddress, name,
 216                   NID_commonName, "www.example.org", 0);
 217 }
 218
 219 static int set_altname_dns(X509 *crt, const char *name)
 220 {
 221     return set_altname(crt, GEN_DNS, name, 0);
 222 }
 223
 224 static int set_altname_email(X509 *crt, const char *name)
 225 {
 226     return set_altname(crt, GEN_EMAIL, name, 0);
 227 }
 228
 229 struct set_name_fn {
 230     int (*fn) (X509 *, const char *);
 231     const char *name;
 232     int host;
 233     int email;
 234 };
 235
 236 static const struct set_name_fn name_fns[] = {
 237     {set_cn1, "set CN", 1, 0},
 238     {set_cn2, "set CN", 1, 0},
 239     {set_cn3, "set CN", 1, 0},
 240     {set_cn_and_email, "set CN", 1, 0},
 241     {set_email1, "set emailAddress", 0, 1},
 242     {set_email2, "set emailAddress", 0, 1},
 243     {set_email3, "set emailAddress", 0, 1},
 244     {set_email_and_cn, "set emailAddress", 0, 1},
 245     {set_altname_dns, "set dnsName", 1, 0},
 246     {set_altname_email, "set rfc822Name", 0, 1},
 247 };
 248
 249 static X509 *make_cert()
 250 {
 251     X509 *crt = NULL;
 252
 253     if (!TEST_ptr(crt = X509_new()))
 254         return NULL;
 255     if (!TEST_true(X509_set_version(crt, 2))) {
 256         X509_free(crt);
 257         return NULL;
 258     }
 259     return crt;
 260 }
 261
 262 static int check_message(const struct set_name_fn *fn, const char *op,
 263                          const char *nameincert, int match, const char *name)
 264 {
 265     char msg[1024];
 266
 267     if (match < 0)
 268         return 1;
 269     BIO_snprintf(msg, sizeof(msg), "%s: %s: [%s] %s [%s]",
 270                  fn->name, op, nameincert,
 271                  match ? "matches" : "does not match", name);
 272     if (is_exception(msg))
 273         return 1;
 274     TEST_error("%s", msg);
 275     return 0;
 276 }
 277
 278 static int run_cert(X509 *crt, const char *nameincert,
 279                      const struct set_name_fn *fn)
 280 {
 281     const char *const *pname = names;
 282     int failed = 0;
 283
 284     for (; *pname != NULL; ++pname) {
 285         int samename = strcasecmp(nameincert, *pname) == 0;
 286         size_t namelen = strlen(*pname);
 287         char *name = OPENSSL_malloc(namelen);
 288         int match, ret;
 289
 290         memcpy(name, *pname, namelen);
 291
 292         match = -1;
 293         if (!TEST_int_ge(ret = X509_check_host(crt, name, namelen, 0, NULL),
 294                          0)) {
 295             failed = 1;
 296         } else if (fn->host) {
 297             if (ret == 1 && !samename)
 298                 match = 1;
 299             if (ret == 0 && samename)
 300                 match = 0;
 301         } else if (ret == 1)
 302             match = 1;
 303         if (!TEST_true(check_message(fn, "host", nameincert, match, *pname)))
 304             failed = 1;
 305
 306         match = -1;
 307         if (!TEST_int_ge(ret = X509_check_host(crt, name, namelen,
 308                                                X509_CHECK_FLAG_NO_WILDCARDS,
 309                                                NULL), 0)) {
 310             failed = 1;
 311         } else if (fn->host) {
 312             if (ret == 1 && !samename)
 313                 match = 1;
 314             if (ret == 0 && samename)
 315                 match = 0;
 316         } else if (ret == 1)
 317             match = 1;
 318         if (!TEST_true(check_message(fn, "host-no-wildcards",
 319                                      nameincert, match, *pname)))
 320             failed = 1;
 321
 322         match = -1;
 323         ret = X509_check_email(crt, name, namelen, 0);
 324         if (fn->email) {
 325             if (ret && !samename)
 326                 match = 1;
 327             if (!ret && samename && strchr(nameincert, '@') != NULL)
 328                 match = 0;
 329         } else if (ret)
 330             match = 1;
 331         if (!TEST_true(check_message(fn, "email", nameincert, match, *pname)))
 332             failed = 1;
 333         OPENSSL_free(name);
 334     }
 335
 336     return failed == 0;
 337 }
 338
 339 static int call_run_cert(int i)
 340 {
 341     int failed = 0;
 342     const struct set_name_fn *pfn = &name_fns[i];
 343     X509 *crt;
 344     const char *const *pname;
 345
 346     TEST_info("%s", pfn->name);
 347     for (pname = names; *pname != NULL; pname++) {
 348         if (!TEST_ptr(crt = make_cert())
 349              || !TEST_true(pfn->fn(crt, *pname))
 350              || !run_cert(crt, *pname, pfn))
 351             failed = 1;
 352         X509_free(crt);
 353     }
 354     return failed == 0;
 355 }
 356
 357 int setup_tests(void)
 358 {
 359     ADD_ALL_TESTS(call_run_cert, OSSL_NELEM(name_fns));
 360     return 1;
 361 }