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440e5d80 RS |
1 | /* |
2 | * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved. | |
3b848c64 | 3 | * |
440e5d80 RS |
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 | |
3b848c64 MC |
8 | */ |
9 | ||
10 | #include <string.h> | |
11 | ||
47c1a0e0 | 12 | #include <openssl/opensslconf.h> |
3b848c64 MC |
13 | #include <openssl/bio.h> |
14 | #include <openssl/crypto.h> | |
15 | #include <openssl/evp.h> | |
16 | #include <openssl/ssl.h> | |
17 | #include <openssl/err.h> | |
6bc6ca62 | 18 | #include <time.h> |
3b848c64 | 19 | |
c14e790d | 20 | #include "../ssl/packet_locl.h" |
3b848c64 | 21 | |
6bc6ca62 | 22 | #include "testutil.h" |
3b848c64 | 23 | |
6bc6ca62 | 24 | #define CLIENT_VERSION_LEN 2 |
3b848c64 | 25 | |
6bc6ca62 | 26 | #define TOTAL_NUM_TESTS 4 |
3b848c64 MC |
27 | |
28 | /* | |
29 | * Test that explicitly setting ticket data results in it appearing in the | |
30 | * ClientHello for a negotiated SSL/TLS version | |
31 | */ | |
885e601d | 32 | #define TEST_SET_SESSION_TICK_DATA_VER_NEG 0 |
6bc6ca62 MC |
33 | /* Enable padding and make sure ClientHello is long enough to require it */ |
34 | #define TEST_ADD_PADDING 1 | |
35 | /* Enable padding and make sure ClientHello is short enough to not need it */ | |
36 | #define TEST_PADDING_NOT_NEEDED 2 | |
37 | /* | |
38 | * Enable padding and add a PSK to the ClientHello (this will also ensure the | |
39 | * ClientHello is long enough to need padding) | |
40 | */ | |
41 | #define TEST_ADD_PADDING_AND_PSK 3 | |
42 | ||
43 | #define F5_WORKAROUND_MIN_MSG_LEN 0xff | |
44 | #define F5_WORKAROUND_MAX_MSG_LEN 0x200 | |
45 | ||
6828358c MC |
46 | static const char *sessionfile = NULL; |
47 | /* Dummy ALPN protocols used to pad out the size of the ClientHello */ | |
48 | static const char alpn_prots[] = | |
49 | "0123456789012345678901234567890123456789012345678901234567890123456789" | |
50 | "0123456789012345678901234567890123456789012345678901234567890123456789"; | |
3b848c64 | 51 | |
6bc6ca62 | 52 | static int test_client_hello(int currtest) |
3b848c64 MC |
53 | { |
54 | SSL_CTX *ctx; | |
f231b4e7 | 55 | SSL *con = NULL; |
3b848c64 MC |
56 | BIO *rbio; |
57 | BIO *wbio; | |
3b848c64 MC |
58 | long len; |
59 | unsigned char *data; | |
8f3f9623 | 60 | PACKET pkt = {0}, pkt2 = {0}, pkt3 = {0}; |
3b848c64 | 61 | char *dummytick = "Hello World!"; |
a105d560 | 62 | unsigned int type = 0; |
3b848c64 | 63 | int testresult = 0; |
6bc6ca62 MC |
64 | size_t msglen; |
65 | BIO *sessbio = NULL; | |
66 | SSL_SESSION *sess = NULL; | |
3b848c64 | 67 | |
6828358c MC |
68 | #ifdef OPENSSL_NO_TLS1_3 |
69 | if (currtest == TEST_ADD_PADDING_AND_PSK) | |
70 | return 1; | |
71 | #endif | |
72 | ||
3b848c64 MC |
73 | /* |
74 | * For each test set up an SSL_CTX and SSL and see what ClientHello gets | |
75 | * produced when we try to connect | |
76 | */ | |
6bc6ca62 | 77 | ctx = SSL_CTX_new(TLS_method()); |
a105d560 | 78 | if (!TEST_ptr(ctx)) |
6bc6ca62 | 79 | goto end; |
9362c93e | 80 | |
6bc6ca62 MC |
81 | switch(currtest) { |
82 | case TEST_SET_SESSION_TICK_DATA_VER_NEG: | |
6530c490 | 83 | /* Testing for session tickets <= TLS1.2; not relevant for 1.3 */ |
a105d560 | 84 | if (!TEST_true(SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION))) |
9362c93e | 85 | goto end; |
6bc6ca62 MC |
86 | break; |
87 | ||
88 | case TEST_ADD_PADDING_AND_PSK: | |
89 | case TEST_ADD_PADDING: | |
90 | case TEST_PADDING_NOT_NEEDED: | |
91 | SSL_CTX_set_options(ctx, SSL_OP_TLSEXT_PADDING); | |
92 | /* | |
93 | * Add lots of ciphersuites so that the ClientHello is at least | |
94 | * F5_WORKAROUND_MIN_MSG_LEN bytes long - meaning padding will be | |
6828358c MC |
95 | * needed. Also add some dummy ALPN protocols in case we still don't |
96 | * have enough. | |
6bc6ca62 MC |
97 | */ |
98 | if (currtest == TEST_ADD_PADDING | |
a105d560 MC |
99 | && (!TEST_true(SSL_CTX_set_cipher_list(ctx, "ALL")) |
100 | || !TEST_false(SSL_CTX_set_alpn_protos(ctx, | |
6828358c | 101 | (unsigned char *)alpn_prots, |
a105d560 | 102 | sizeof(alpn_prots) - 1)))) |
9362c93e | 103 | goto end; |
a105d560 | 104 | |
6bc6ca62 | 105 | break; |
3b848c64 | 106 | |
6bc6ca62 MC |
107 | default: |
108 | goto end; | |
109 | } | |
9362c93e | 110 | |
6bc6ca62 | 111 | con = SSL_new(ctx); |
a105d560 | 112 | if (!TEST_ptr(con)) |
6bc6ca62 | 113 | goto end; |
3b848c64 | 114 | |
6bc6ca62 MC |
115 | if (currtest == TEST_ADD_PADDING_AND_PSK) { |
116 | sessbio = BIO_new_file(sessionfile, "r"); | |
a105d560 MC |
117 | if (!TEST_ptr(sessbio)) { |
118 | TEST_info("Unable to open session.pem"); | |
6bc6ca62 | 119 | goto end; |
3b848c64 | 120 | } |
6bc6ca62 | 121 | sess = PEM_read_bio_SSL_SESSION(sessbio, NULL, NULL, NULL); |
a105d560 MC |
122 | if (!TEST_ptr(sess)) { |
123 | TEST_info("Unable to load SSL_SESSION"); | |
3b848c64 MC |
124 | goto end; |
125 | } | |
6bc6ca62 MC |
126 | /* |
127 | * We reset the creation time so that we don't discard the session as | |
128 | * too old. | |
129 | */ | |
a105d560 MC |
130 | if (!TEST_true(SSL_SESSION_set_time(sess, time(NULL))) |
131 | || !TEST_true(SSL_set_session(con, sess))) | |
c14e790d | 132 | goto end; |
6bc6ca62 | 133 | } |
c14e790d | 134 | |
6bc6ca62 MC |
135 | rbio = BIO_new(BIO_s_mem()); |
136 | wbio = BIO_new(BIO_s_mem()); | |
a105d560 | 137 | if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) { |
6bc6ca62 MC |
138 | BIO_free(rbio); |
139 | BIO_free(wbio); | |
140 | goto end; | |
141 | } | |
c14e790d | 142 | |
6bc6ca62 MC |
143 | SSL_set_bio(con, rbio, wbio); |
144 | SSL_set_connect_state(con); | |
c14e790d | 145 | |
6bc6ca62 | 146 | if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) { |
a105d560 MC |
147 | if (!TEST_true(SSL_set_session_ticket_ext(con, dummytick, |
148 | strlen(dummytick)))) | |
3b848c64 | 149 | goto end; |
6bc6ca62 | 150 | } |
c14e790d | 151 | |
a105d560 | 152 | if (!TEST_int_le(SSL_connect(con), 0)) { |
6bc6ca62 MC |
153 | /* This shouldn't succeed because we don't have a server! */ |
154 | goto end; | |
155 | } | |
c14e790d | 156 | |
6bc6ca62 | 157 | len = BIO_get_mem_data(wbio, (char **)&data); |
a105d560 MC |
158 | if (!TEST_true(PACKET_buf_init(&pkt, data, len)) |
159 | /* Skip the record header */ | |
160 | || !PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH)) | |
6bc6ca62 MC |
161 | goto end; |
162 | ||
163 | msglen = PACKET_remaining(&pkt); | |
164 | ||
165 | /* Skip the handshake message header */ | |
a105d560 MC |
166 | if (!TEST_true(PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH)) |
167 | /* Skip client version and random */ | |
168 | || !TEST_true(PACKET_forward(&pkt, CLIENT_VERSION_LEN | |
169 | + SSL3_RANDOM_SIZE)) | |
170 | /* Skip session id */ | |
171 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
172 | /* Skip ciphers */ | |
173 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt, &pkt2)) | |
174 | /* Skip compression */ | |
175 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
176 | /* Extensions len */ | |
177 | || !TEST_true(PACKET_as_length_prefixed_2(&pkt, &pkt2))) | |
6bc6ca62 MC |
178 | goto end; |
179 | ||
180 | /* Loop through all extensions */ | |
181 | while (PACKET_remaining(&pkt2)) { | |
182 | ||
a105d560 MC |
183 | if (!TEST_true(PACKET_get_net_2(&pkt2, &type)) |
184 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt2, &pkt3))) | |
3b848c64 MC |
185 | goto end; |
186 | ||
6bc6ca62 MC |
187 | if (type == TLSEXT_TYPE_session_ticket) { |
188 | if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) { | |
a105d560 MC |
189 | if (TEST_true(PACKET_equal(&pkt3, dummytick, |
190 | strlen(dummytick)))) { | |
6bc6ca62 MC |
191 | /* Ticket data is as we expected */ |
192 | testresult = 1; | |
3b848c64 | 193 | } |
a105d560 | 194 | goto end; |
3b848c64 | 195 | } |
3b848c64 | 196 | } |
6bc6ca62 | 197 | if (type == TLSEXT_TYPE_padding) { |
a105d560 MC |
198 | if (!TEST_false(currtest == TEST_PADDING_NOT_NEEDED)) |
199 | goto end; | |
200 | else if (TEST_true(currtest == TEST_ADD_PADDING | |
201 | || currtest == TEST_ADD_PADDING_AND_PSK)) | |
202 | testresult = TEST_true(msglen == F5_WORKAROUND_MAX_MSG_LEN); | |
3b848c64 MC |
203 | } |
204 | } | |
205 | ||
a105d560 MC |
206 | if (currtest == TEST_PADDING_NOT_NEEDED) |
207 | testresult = 1; | |
208 | ||
6bc6ca62 MC |
209 | end: |
210 | SSL_free(con); | |
211 | SSL_CTX_free(ctx); | |
212 | SSL_SESSION_free(sess); | |
213 | BIO_free(sessbio); | |
6bc6ca62 MC |
214 | |
215 | return testresult; | |
216 | } | |
217 | ||
218 | int test_main(int argc, char *argv[]) | |
219 | { | |
220 | if (argc != 2) | |
6828358c | 221 | return EXIT_FAILURE; |
6bc6ca62 MC |
222 | |
223 | sessionfile = argv[1]; | |
224 | ||
225 | ADD_ALL_TESTS(test_client_hello, TOTAL_NUM_TESTS); | |
3b848c64 | 226 | |
6bc6ca62 | 227 | return run_tests(argv[0]); |
3b848c64 | 228 | } |