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440e5d80 | 1 | /* |
6738bf14 | 2 | * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved. |
3b848c64 | 3 | * |
909f1a2e | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
440e5d80 RS |
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 | ||
511fbc60 | 43 | #define F5_WORKAROUND_MIN_MSG_LEN 0x7f |
6bc6ca62 MC |
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" | |
511fbc60 BK |
50 | "0123456789012345678901234567890123456789012345678901234567890123456789" |
51 | "01234567890123456789"; | |
3b848c64 | 52 | |
6bc6ca62 | 53 | static int test_client_hello(int currtest) |
3b848c64 MC |
54 | { |
55 | SSL_CTX *ctx; | |
f231b4e7 | 56 | SSL *con = NULL; |
3b848c64 MC |
57 | BIO *rbio; |
58 | BIO *wbio; | |
3b848c64 MC |
59 | long len; |
60 | unsigned char *data; | |
72962d02 | 61 | PACKET pkt, pkt2, pkt3; |
3b848c64 | 62 | char *dummytick = "Hello World!"; |
a105d560 | 63 | unsigned int type = 0; |
3b848c64 | 64 | int testresult = 0; |
6bc6ca62 MC |
65 | size_t msglen; |
66 | BIO *sessbio = NULL; | |
67 | SSL_SESSION *sess = NULL; | |
3b848c64 | 68 | |
6828358c MC |
69 | #ifdef OPENSSL_NO_TLS1_3 |
70 | if (currtest == TEST_ADD_PADDING_AND_PSK) | |
71 | return 1; | |
72 | #endif | |
73 | ||
72962d02 P |
74 | memset(&pkt, 0, sizeof(pkt)); |
75 | memset(&pkt2, 0, sizeof(pkt2)); | |
76 | memset(&pkt3, 0, sizeof(pkt3)); | |
77 | ||
3b848c64 MC |
78 | /* |
79 | * For each test set up an SSL_CTX and SSL and see what ClientHello gets | |
80 | * produced when we try to connect | |
81 | */ | |
6bc6ca62 | 82 | ctx = SSL_CTX_new(TLS_method()); |
a105d560 | 83 | if (!TEST_ptr(ctx)) |
6bc6ca62 | 84 | goto end; |
5c587fb6 | 85 | if (!TEST_true(SSL_CTX_set_max_proto_version(ctx, 0))) |
7d7f6834 | 86 | goto end; |
9362c93e | 87 | |
6bc6ca62 MC |
88 | switch(currtest) { |
89 | case TEST_SET_SESSION_TICK_DATA_VER_NEG: | |
c423ecaa MC |
90 | #if !defined(OPENSSL_NO_TLS1_3) && defined(OPENSSL_NO_TLS1_2) |
91 | /* TLSv1.3 is enabled and TLSv1.2 is disabled so can't do this test */ | |
92 | return 1; | |
93 | #else | |
6530c490 | 94 | /* Testing for session tickets <= TLS1.2; not relevant for 1.3 */ |
a105d560 | 95 | if (!TEST_true(SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION))) |
9362c93e | 96 | goto end; |
c423ecaa | 97 | #endif |
6bc6ca62 MC |
98 | break; |
99 | ||
100 | case TEST_ADD_PADDING_AND_PSK: | |
0f41dc0e MC |
101 | /* |
102 | * In this case we're doing TLSv1.3 and we're sending a PSK so the | |
103 | * ClientHello is already going to be quite long. To avoid getting one | |
104 | * that is too long for this test we use a restricted ciphersuite list | |
105 | */ | |
3c83c5ba | 106 | if (!TEST_false(SSL_CTX_set_cipher_list(ctx, ""))) |
0f41dc0e | 107 | goto end; |
3c83c5ba | 108 | ERR_clear_error(); |
0f41dc0e | 109 | /* Fall through */ |
6bc6ca62 MC |
110 | case TEST_ADD_PADDING: |
111 | case TEST_PADDING_NOT_NEEDED: | |
112 | SSL_CTX_set_options(ctx, SSL_OP_TLSEXT_PADDING); | |
a5816a5a MC |
113 | /* Make sure we get a consistent size across TLS versions */ |
114 | SSL_CTX_clear_options(ctx, SSL_OP_ENABLE_MIDDLEBOX_COMPAT); | |
6bc6ca62 | 115 | /* |
1d2491e2 | 116 | * Add some dummy ALPN protocols so that the ClientHello is at least |
6bc6ca62 | 117 | * F5_WORKAROUND_MIN_MSG_LEN bytes long - meaning padding will be |
1d2491e2 | 118 | * needed. |
6bc6ca62 | 119 | */ |
fe93b010 MC |
120 | if (currtest == TEST_ADD_PADDING) { |
121 | if (!TEST_false(SSL_CTX_set_alpn_protos(ctx, | |
1d2491e2 | 122 | (unsigned char *)alpn_prots, |
fe93b010 MC |
123 | sizeof(alpn_prots) - 1))) |
124 | goto end; | |
125 | /* | |
126 | * Otherwise we need to make sure we have a small enough message to | |
127 | * not need padding. | |
128 | */ | |
129 | } else if (!TEST_true(SSL_CTX_set_cipher_list(ctx, | |
74826901 MC |
130 | "AES128-SHA")) |
131 | || !TEST_true(SSL_CTX_set_ciphersuites(ctx, | |
132 | "TLS_AES_128_GCM_SHA256"))) { | |
9362c93e | 133 | goto end; |
fe93b010 | 134 | } |
6bc6ca62 | 135 | break; |
3b848c64 | 136 | |
6bc6ca62 MC |
137 | default: |
138 | goto end; | |
139 | } | |
9362c93e | 140 | |
6bc6ca62 | 141 | con = SSL_new(ctx); |
a105d560 | 142 | if (!TEST_ptr(con)) |
6bc6ca62 | 143 | goto end; |
3b848c64 | 144 | |
6bc6ca62 MC |
145 | if (currtest == TEST_ADD_PADDING_AND_PSK) { |
146 | sessbio = BIO_new_file(sessionfile, "r"); | |
a105d560 MC |
147 | if (!TEST_ptr(sessbio)) { |
148 | TEST_info("Unable to open session.pem"); | |
6bc6ca62 | 149 | goto end; |
3b848c64 | 150 | } |
6bc6ca62 | 151 | sess = PEM_read_bio_SSL_SESSION(sessbio, NULL, NULL, NULL); |
a105d560 MC |
152 | if (!TEST_ptr(sess)) { |
153 | TEST_info("Unable to load SSL_SESSION"); | |
3b848c64 MC |
154 | goto end; |
155 | } | |
6bc6ca62 MC |
156 | /* |
157 | * We reset the creation time so that we don't discard the session as | |
158 | * too old. | |
159 | */ | |
3a63c0ed | 160 | if (!TEST_true(SSL_SESSION_set_time(sess, (long)time(NULL))) |
a105d560 | 161 | || !TEST_true(SSL_set_session(con, sess))) |
c14e790d | 162 | goto end; |
6bc6ca62 | 163 | } |
c14e790d | 164 | |
6bc6ca62 MC |
165 | rbio = BIO_new(BIO_s_mem()); |
166 | wbio = BIO_new(BIO_s_mem()); | |
a105d560 | 167 | if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) { |
6bc6ca62 MC |
168 | BIO_free(rbio); |
169 | BIO_free(wbio); | |
170 | goto end; | |
171 | } | |
c14e790d | 172 | |
6bc6ca62 MC |
173 | SSL_set_bio(con, rbio, wbio); |
174 | SSL_set_connect_state(con); | |
c14e790d | 175 | |
6bc6ca62 | 176 | if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) { |
a105d560 MC |
177 | if (!TEST_true(SSL_set_session_ticket_ext(con, dummytick, |
178 | strlen(dummytick)))) | |
3b848c64 | 179 | goto end; |
6bc6ca62 | 180 | } |
c14e790d | 181 | |
a105d560 | 182 | if (!TEST_int_le(SSL_connect(con), 0)) { |
6bc6ca62 MC |
183 | /* This shouldn't succeed because we don't have a server! */ |
184 | goto end; | |
185 | } | |
c14e790d | 186 | |
6bc6ca62 | 187 | len = BIO_get_mem_data(wbio, (char **)&data); |
a105d560 MC |
188 | if (!TEST_true(PACKET_buf_init(&pkt, data, len)) |
189 | /* Skip the record header */ | |
190 | || !PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH)) | |
6bc6ca62 MC |
191 | goto end; |
192 | ||
193 | msglen = PACKET_remaining(&pkt); | |
194 | ||
195 | /* Skip the handshake message header */ | |
a105d560 MC |
196 | if (!TEST_true(PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH)) |
197 | /* Skip client version and random */ | |
198 | || !TEST_true(PACKET_forward(&pkt, CLIENT_VERSION_LEN | |
199 | + SSL3_RANDOM_SIZE)) | |
200 | /* Skip session id */ | |
201 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
202 | /* Skip ciphers */ | |
203 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt, &pkt2)) | |
204 | /* Skip compression */ | |
205 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
206 | /* Extensions len */ | |
207 | || !TEST_true(PACKET_as_length_prefixed_2(&pkt, &pkt2))) | |
6bc6ca62 MC |
208 | goto end; |
209 | ||
210 | /* Loop through all extensions */ | |
211 | while (PACKET_remaining(&pkt2)) { | |
212 | ||
a105d560 MC |
213 | if (!TEST_true(PACKET_get_net_2(&pkt2, &type)) |
214 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt2, &pkt3))) | |
3b848c64 MC |
215 | goto end; |
216 | ||
6bc6ca62 MC |
217 | if (type == TLSEXT_TYPE_session_ticket) { |
218 | if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) { | |
a105d560 MC |
219 | if (TEST_true(PACKET_equal(&pkt3, dummytick, |
220 | strlen(dummytick)))) { | |
6bc6ca62 MC |
221 | /* Ticket data is as we expected */ |
222 | testresult = 1; | |
3b848c64 | 223 | } |
a105d560 | 224 | goto end; |
3b848c64 | 225 | } |
3b848c64 | 226 | } |
6bc6ca62 | 227 | if (type == TLSEXT_TYPE_padding) { |
a105d560 MC |
228 | if (!TEST_false(currtest == TEST_PADDING_NOT_NEEDED)) |
229 | goto end; | |
230 | else if (TEST_true(currtest == TEST_ADD_PADDING | |
231 | || currtest == TEST_ADD_PADDING_AND_PSK)) | |
232 | testresult = TEST_true(msglen == F5_WORKAROUND_MAX_MSG_LEN); | |
3b848c64 MC |
233 | } |
234 | } | |
235 | ||
a105d560 MC |
236 | if (currtest == TEST_PADDING_NOT_NEEDED) |
237 | testresult = 1; | |
238 | ||
6bc6ca62 MC |
239 | end: |
240 | SSL_free(con); | |
241 | SSL_CTX_free(ctx); | |
242 | SSL_SESSION_free(sess); | |
243 | BIO_free(sessbio); | |
6bc6ca62 MC |
244 | |
245 | return testresult; | |
246 | } | |
247 | ||
a43ce58f SL |
248 | OPT_TEST_DECLARE_USAGE("sessionfile\n") |
249 | ||
ad887416 | 250 | int setup_tests(void) |
6bc6ca62 | 251 | { |
ad887416 P |
252 | if (!TEST_ptr(sessionfile = test_get_argument(0))) |
253 | return 0; | |
6bc6ca62 MC |
254 | |
255 | ADD_ALL_TESTS(test_client_hello, TOTAL_NUM_TESTS); | |
ad887416 | 256 | return 1; |
3b848c64 | 257 | } |