2 * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2017 BaishanCloud. All rights reserved.
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
13 #include <openssl/opensslconf.h>
14 #include <openssl/bio.h>
15 #include <openssl/crypto.h>
16 #include <openssl/evp.h>
17 #include <openssl/ssl.h>
18 #include <openssl/err.h>
21 #include "internal/packet.h"
24 #include "internal/nelem.h"
25 #include "ssltestlib.h"
27 #define CLIENT_VERSION_LEN 2
29 static const char *host = "dummy-host";
31 static char *cert = NULL;
32 static char *privkey = NULL;
34 static int get_sni_from_client_hello(BIO *bio, char **sni)
38 PACKET pkt, pkt2, pkt3, pkt4, pkt5;
39 unsigned int servname_type = 0, type = 0;
42 memset(&pkt, 0, sizeof(pkt));
43 memset(&pkt2, 0, sizeof(pkt2));
44 memset(&pkt3, 0, sizeof(pkt3));
45 memset(&pkt4, 0, sizeof(pkt4));
46 memset(&pkt5, 0, sizeof(pkt5));
48 len = BIO_get_mem_data(bio, (char **)&data);
49 if (!TEST_true(PACKET_buf_init(&pkt, data, len))
50 /* Skip the record header */
51 || !PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH)
52 /* Skip the handshake message header */
53 || !TEST_true(PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH))
54 /* Skip client version and random */
55 || !TEST_true(PACKET_forward(&pkt, CLIENT_VERSION_LEN
58 || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2))
60 || !TEST_true(PACKET_get_length_prefixed_2(&pkt, &pkt2))
61 /* Skip compression */
62 || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2))
64 || !TEST_true(PACKET_as_length_prefixed_2(&pkt, &pkt2)))
67 /* Loop through all extensions for SNI */
68 while (PACKET_remaining(&pkt2)) {
69 if (!TEST_true(PACKET_get_net_2(&pkt2, &type))
70 || !TEST_true(PACKET_get_length_prefixed_2(&pkt2, &pkt3)))
72 if (type == TLSEXT_TYPE_server_name) {
73 if (!TEST_true(PACKET_get_length_prefixed_2(&pkt3, &pkt4))
74 || !TEST_uint_ne(PACKET_remaining(&pkt4), 0)
75 || !TEST_true(PACKET_get_1(&pkt4, &servname_type))
76 || !TEST_uint_eq(servname_type, TLSEXT_NAMETYPE_host_name)
77 || !TEST_true(PACKET_get_length_prefixed_2(&pkt4, &pkt5))
78 || !TEST_uint_le(PACKET_remaining(&pkt5), TLSEXT_MAXLEN_host_name)
79 || !TEST_false(PACKET_contains_zero_byte(&pkt5))
80 || !TEST_true(PACKET_strndup(&pkt5, sni)))
90 static int client_setup_sni_before_state(void)
96 char *hostname = NULL;
99 /* use TLS_method to blur 'side' */
100 ctx = SSL_CTX_new(TLS_method());
108 /* set SNI before 'client side' is set */
109 SSL_set_tlsext_host_name(con, host);
111 rbio = BIO_new(BIO_s_mem());
112 wbio = BIO_new(BIO_s_mem());
113 if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) {
119 SSL_set_bio(con, rbio, wbio);
121 if (!TEST_int_le(SSL_connect(con), 0))
122 /* This shouldn't succeed because we don't have a server! */
124 if (!TEST_true(get_sni_from_client_hello(wbio, &hostname)))
125 /* no SNI in client hello */
127 if (!TEST_str_eq(hostname, host))
128 /* incorrect SNI value */
132 OPENSSL_free(hostname);
138 static int client_setup_sni_after_state(void)
144 char *hostname = NULL;
147 /* use TLS_method to blur 'side' */
148 ctx = SSL_CTX_new(TLS_method());
156 rbio = BIO_new(BIO_s_mem());
157 wbio = BIO_new(BIO_s_mem());
158 if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) {
164 SSL_set_bio(con, rbio, wbio);
165 SSL_set_connect_state(con);
167 /* set SNI after 'client side' is set */
168 SSL_set_tlsext_host_name(con, host);
170 if (!TEST_int_le(SSL_connect(con), 0))
171 /* This shouldn't succeed because we don't have a server! */
173 if (!TEST_true(get_sni_from_client_hello(wbio, &hostname)))
174 /* no SNI in client hello */
176 if (!TEST_str_eq(hostname, host))
177 /* incorrect SNI value */
181 OPENSSL_free(hostname);
187 static int server_setup_sni(void)
189 SSL_CTX *cctx = NULL, *sctx = NULL;
190 SSL *clientssl = NULL, *serverssl = NULL;
193 if (!TEST_true(create_ssl_ctx_pair(TLS_server_method(),
196 &sctx, &cctx, cert, privkey))
197 || !TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,
201 /* set SNI at server side */
202 SSL_set_tlsext_host_name(serverssl, host);
204 if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE)))
207 if (!TEST_ptr_null(SSL_get_servername(serverssl,
208 TLSEXT_NAMETYPE_host_name))) {
209 /* SNI should have been cleared during handshake */
223 typedef int (*sni_test_fn)(void);
225 static sni_test_fn sni_test_fns[3] = {
226 client_setup_sni_before_state,
227 client_setup_sni_after_state,
231 static int test_servername(int test)
234 * For each test set up an SSL_CTX and SSL and see
237 return sni_test_fns[test]();
240 int setup_tests(void)
242 if (!test_skip_common_options()) {
243 TEST_error("Error parsing test options\n");
247 if (!TEST_ptr(cert = test_get_argument(0))
248 || !TEST_ptr(privkey = test_get_argument(1)))
251 ADD_ALL_TESTS(test_servername, OSSL_NELEM(sni_test_fns));