--- /dev/null
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 1999.
+ */
+/* ====================================================================
+ * Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com). */
+
+#include <stdarg.h>
+#include <string.h>
+
+#include <gtest/gtest.h>
+
+#include <openssl/crypto.h>
+#include <openssl/mem.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+
+#include "../internal.h"
+
+
+static const char *const names[] = {
+ "a", "b", ".", "*", "@",
+ ".a", "a.", ".b", "b.", ".*", "*.", "*@", "@*", "a@", "@a", "b@", "..",
+ "-example.com", "example-.com",
+ "@@", "**", "*.com", "*com", "*.*.com", "*com", "com*", "*example.com",
+ "*@example.com", "test@*.example.com", "example.com", "www.example.com",
+ "test.www.example.com", "*.example.com", "*.www.example.com",
+ "test.*.example.com", "www.*.com",
+ ".www.example.com", "*www.example.com",
+ "example.net", "xn--rger-koa.example.com",
+ "*.xn--rger-koa.example.com", "www.xn--rger-koa.example.com",
+ "*.good--example.com", "www.good--example.com",
+ "*.xn--bar.com", "xn--foo.xn--bar.com",
+ "a.example.com", "b.example.com",
+ "postmaster@example.com", "Postmaster@example.com",
+ "postmaster@EXAMPLE.COM",
+ NULL
+};
+
+static const char *const exceptions[] = {
+ "set CN: host: [*.example.com] matches [a.example.com]",
+ "set CN: host: [*.example.com] matches [b.example.com]",
+ "set CN: host: [*.example.com] matches [www.example.com]",
+ "set CN: host: [*.example.com] matches [xn--rger-koa.example.com]",
+ "set CN: host: [*.www.example.com] matches [test.www.example.com]",
+ "set CN: host: [*.www.example.com] matches [.www.example.com]",
+ "set CN: host: [*www.example.com] matches [www.example.com]",
+ "set CN: host: [test.www.example.com] matches [.www.example.com]",
+ "set CN: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
+ "set CN: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
+ "set CN: host: [*.good--example.com] matches [www.good--example.com]",
+ "set CN: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
+ "set CN: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
+ "set emailAddress: email: [postmaster@example.com] does not match [Postmaster@example.com]",
+ "set emailAddress: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
+ "set emailAddress: email: [Postmaster@example.com] does not match [postmaster@example.com]",
+ "set emailAddress: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
+ "set dnsName: host: [*.example.com] matches [www.example.com]",
+ "set dnsName: host: [*.example.com] matches [a.example.com]",
+ "set dnsName: host: [*.example.com] matches [b.example.com]",
+ "set dnsName: host: [*.example.com] matches [xn--rger-koa.example.com]",
+ "set dnsName: host: [*.www.example.com] matches [test.www.example.com]",
+ "set dnsName: host-no-wildcards: [*.www.example.com] matches [.www.example.com]",
+ "set dnsName: host-no-wildcards: [test.www.example.com] matches [.www.example.com]",
+ "set dnsName: host: [*.www.example.com] matches [.www.example.com]",
+ "set dnsName: host: [*www.example.com] matches [www.example.com]",
+ "set dnsName: host: [test.www.example.com] matches [.www.example.com]",
+ "set dnsName: host: [*.xn--rger-koa.example.com] matches [www.xn--rger-koa.example.com]",
+ "set dnsName: host: [*.xn--bar.com] matches [xn--foo.xn--bar.com]",
+ "set dnsName: host: [*.good--example.com] matches [www.good--example.com]",
+ "set rfc822Name: email: [postmaster@example.com] does not match [Postmaster@example.com]",
+ "set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@example.com]",
+ "set rfc822Name: email: [Postmaster@example.com] does not match [postmaster@EXAMPLE.COM]",
+ "set rfc822Name: email: [postmaster@EXAMPLE.COM] does not match [Postmaster@example.com]",
+ NULL
+};
+
+static int is_exception(const char *msg)
+{
+ const char *const *p;
+ for (p = exceptions; *p; ++p)
+ if (strcmp(msg, *p) == 0)
+ return 1;
+ return 0;
+}
+
+static int set_cn(X509 *crt, ...)
+{
+ int ret = 0;
+ X509_NAME *n = NULL;
+ va_list ap;
+ va_start(ap, crt);
+ n = X509_NAME_new();
+ if (n == NULL)
+ goto out;
+ while (1) {
+ int nid;
+ const char *name;
+ nid = va_arg(ap, int);
+ if (nid == 0)
+ break;
+ name = va_arg(ap, const char *);
+ if (!X509_NAME_add_entry_by_NID(n, nid, MBSTRING_ASC,
+ (unsigned char *)name, -1, -1, 1))
+ goto out;
+ }
+ if (!X509_set_subject_name(crt, n))
+ goto out;
+ ret = 1;
+ out:
+ X509_NAME_free(n);
+ va_end(ap);
+ return ret;
+}
+
+/*
+ * int X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc); X509_EXTENSION
+ * *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid, int crit,
+ * ASN1_OCTET_STRING *data); int X509_add_ext(X509 *x, X509_EXTENSION *ex,
+ * int loc);
+ */
+
+static int set_altname(X509 *crt, ...)
+{
+ int ret = 0;
+ GENERAL_NAMES *gens = NULL;
+ GENERAL_NAME *gen = NULL;
+ ASN1_IA5STRING *ia5 = NULL;
+ va_list ap;
+ va_start(ap, crt);
+ gens = sk_GENERAL_NAME_new_null();
+ if (gens == NULL)
+ goto out;
+ while (1) {
+ int type;
+ const char *name;
+ type = va_arg(ap, int);
+ if (type == 0)
+ break;
+ name = va_arg(ap, const char *);
+
+ gen = GENERAL_NAME_new();
+ if (gen == NULL)
+ goto out;
+ ia5 = ASN1_IA5STRING_new();
+ if (ia5 == NULL)
+ goto out;
+ if (!ASN1_STRING_set(ia5, name, -1))
+ goto out;
+ switch (type) {
+ case GEN_EMAIL:
+ case GEN_DNS:
+ GENERAL_NAME_set0_value(gen, type, ia5);
+ ia5 = NULL;
+ break;
+ default:
+ abort();
+ }
+ sk_GENERAL_NAME_push(gens, gen);
+ gen = NULL;
+ }
+ if (!X509_add1_ext_i2d(crt, NID_subject_alt_name, gens, 0, 0))
+ goto out;
+ ret = 1;
+ out:
+ ASN1_IA5STRING_free(ia5);
+ GENERAL_NAME_free(gen);
+ GENERAL_NAMES_free(gens);
+ va_end(ap);
+ return ret;
+}
+
+static int set_cn1(X509 *crt, const char *name)
+{
+ return set_cn(crt, NID_commonName, name, 0);
+}
+
+static int set_cn_and_email(X509 *crt, const char *name)
+{
+ return set_cn(crt, NID_commonName, name,
+ NID_pkcs9_emailAddress, "dummy@example.com", 0);
+}
+
+static int set_cn2(X509 *crt, const char *name)
+{
+ return set_cn(crt, NID_commonName, "dummy value",
+ NID_commonName, name, 0);
+}
+
+static int set_cn3(X509 *crt, const char *name)
+{
+ return set_cn(crt, NID_commonName, name,
+ NID_commonName, "dummy value", 0);
+}
+
+static int set_email1(X509 *crt, const char *name)
+{
+ return set_cn(crt, NID_pkcs9_emailAddress, name, 0);
+}
+
+static int set_email2(X509 *crt, const char *name)
+{
+ return set_cn(crt, NID_pkcs9_emailAddress, "dummy@example.com",
+ NID_pkcs9_emailAddress, name, 0);
+}
+
+static int set_email3(X509 *crt, const char *name)
+{
+ return set_cn(crt, NID_pkcs9_emailAddress, name,
+ NID_pkcs9_emailAddress, "dummy@example.com", 0);
+}
+
+static int set_email_and_cn(X509 *crt, const char *name)
+{
+ return set_cn(crt, NID_pkcs9_emailAddress, name,
+ NID_commonName, "www.example.org", 0);
+}
+
+static int set_altname_dns(X509 *crt, const char *name)
+{
+ return set_altname(crt, GEN_DNS, name, 0);
+}
+
+static int set_altname_email(X509 *crt, const char *name)
+{
+ return set_altname(crt, GEN_EMAIL, name, 0);
+}
+
+struct set_name_fn {
+ int (*fn) (X509 *, const char *);
+ const char *name;
+ int host;
+ int email;
+};
+
+static const struct set_name_fn name_fns[] = {
+ {set_cn1, "set CN", 1, 0},
+ {set_cn2, "set CN", 1, 0},
+ {set_cn3, "set CN", 1, 0},
+ {set_cn_and_email, "set CN", 1, 0},
+ {set_email1, "set emailAddress", 0, 1},
+ {set_email2, "set emailAddress", 0, 1},
+ {set_email3, "set emailAddress", 0, 1},
+ {set_email_and_cn, "set emailAddress", 0, 1},
+ {set_altname_dns, "set dnsName", 1, 0},
+ {set_altname_email, "set rfc822Name", 0, 1},
+ {NULL, NULL, 0, 0},
+};
+
+static X509 *make_cert(void)
+{
+ X509 *ret = NULL;
+ X509 *crt = NULL;
+ X509_NAME *issuer = NULL;
+ crt = X509_new();
+ if (crt == NULL)
+ goto out;
+ if (!X509_set_version(crt, 3))
+ goto out;
+ ret = crt;
+ crt = NULL;
+ out:
+ X509_NAME_free(issuer);
+ return ret;
+}
+
+static int errors;
+
+static void check_message(const struct set_name_fn *fn, const char *op,
+ const char *nameincert, int match, const char *name)
+{
+ char msg[1024];
+ if (match < 0)
+ return;
+ BIO_snprintf(msg, sizeof(msg), "%s: %s: [%s] %s [%s]",
+ fn->name, op, nameincert,
+ match ? "matches" : "does not match", name);
+ if (is_exception(msg))
+ return;
+ puts(msg);
+ ++errors;
+}
+
+static void run_cert(X509 *crt, const char *nameincert,
+ const struct set_name_fn *fn)
+{
+ const char *const *pname = names;
+ while (*pname) {
+ int samename = OPENSSL_strcasecmp(nameincert, *pname) == 0;
+ size_t namelen = strlen(*pname);
+ char *name = (char *)malloc(namelen);
+ int match, ret;
+ OPENSSL_memcpy(name, *pname, namelen);
+
+ ret = X509_check_host(crt, name, namelen, 0, NULL);
+ match = -1;
+ if (ret < 0) {
+ fprintf(stderr, "internal error in X509_check_host");
+ ++errors;
+ } else if (fn->host) {
+ if (ret == 1 && !samename)
+ match = 1;
+ if (ret == 0 && samename)
+ match = 0;
+ } else if (ret == 1)
+ match = 1;
+ check_message(fn, "host", nameincert, match, *pname);
+
+ ret = X509_check_host(crt, name, namelen,
+ X509_CHECK_FLAG_NO_WILDCARDS, NULL);
+ match = -1;
+ if (ret < 0) {
+ fprintf(stderr, "internal error in X509_check_host");
+ ++errors;
+ } else if (fn->host) {
+ if (ret == 1 && !samename)
+ match = 1;
+ if (ret == 0 && samename)
+ match = 0;
+ } else if (ret == 1)
+ match = 1;
+ check_message(fn, "host-no-wildcards", nameincert, match, *pname);
+
+ ret = X509_check_email(crt, name, namelen, 0);
+ match = -1;
+ if (fn->email) {
+ if (ret && !samename)
+ match = 1;
+ if (!ret && samename && strchr(nameincert, '@') != NULL)
+ match = 0;
+ } else if (ret)
+ match = 1;
+ check_message(fn, "email", nameincert, match, *pname);
+ ++pname;
+ free(name);
+ }
+}
+
+// TOOD(davidben): Convert this test to GTest more thoroughly.
+TEST(X509V3Test, NameTest) {
+ const struct set_name_fn *pfn = name_fns;
+ while (pfn->name) {
+ const char *const *pname = names;
+ while (*pname) {
+ bssl::UniquePtr<X509> crt(make_cert());
+ ASSERT_TRUE(crt);
+ ASSERT_TRUE(pfn->fn(crt.get(), *pname));
+ run_cert(crt.get(), *pname, pfn);
+ ++pname;
+ }
+ ++pfn;
+ }
+ EXPECT_EQ(0, errors);
+}
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