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440e5d80 | 1 | /* |
6738bf14 | 2 | * Copyright 2015-2018 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 | ||
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; | |
8f3f9623 | 61 | PACKET pkt = {0}, pkt2 = {0}, pkt3 = {0}; |
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 | ||
3b848c64 MC |
74 | /* |
75 | * For each test set up an SSL_CTX and SSL and see what ClientHello gets | |
76 | * produced when we try to connect | |
77 | */ | |
6bc6ca62 | 78 | ctx = SSL_CTX_new(TLS_method()); |
a105d560 | 79 | if (!TEST_ptr(ctx)) |
6bc6ca62 | 80 | goto end; |
9362c93e | 81 | |
6bc6ca62 MC |
82 | switch(currtest) { |
83 | case TEST_SET_SESSION_TICK_DATA_VER_NEG: | |
c423ecaa MC |
84 | #if !defined(OPENSSL_NO_TLS1_3) && defined(OPENSSL_NO_TLS1_2) |
85 | /* TLSv1.3 is enabled and TLSv1.2 is disabled so can't do this test */ | |
86 | return 1; | |
87 | #else | |
6530c490 | 88 | /* Testing for session tickets <= TLS1.2; not relevant for 1.3 */ |
a105d560 | 89 | if (!TEST_true(SSL_CTX_set_max_proto_version(ctx, TLS1_2_VERSION))) |
9362c93e | 90 | goto end; |
c423ecaa | 91 | #endif |
6bc6ca62 MC |
92 | break; |
93 | ||
94 | case TEST_ADD_PADDING_AND_PSK: | |
0f41dc0e MC |
95 | /* |
96 | * In this case we're doing TLSv1.3 and we're sending a PSK so the | |
97 | * ClientHello is already going to be quite long. To avoid getting one | |
98 | * that is too long for this test we use a restricted ciphersuite list | |
99 | */ | |
100 | if (!TEST_true(SSL_CTX_set_cipher_list(ctx, | |
101 | "TLS13-AES-128-GCM-SHA256"))) | |
102 | goto end; | |
103 | /* Fall through */ | |
6bc6ca62 MC |
104 | case TEST_ADD_PADDING: |
105 | case TEST_PADDING_NOT_NEEDED: | |
106 | SSL_CTX_set_options(ctx, SSL_OP_TLSEXT_PADDING); | |
a5816a5a MC |
107 | /* Make sure we get a consistent size across TLS versions */ |
108 | SSL_CTX_clear_options(ctx, SSL_OP_ENABLE_MIDDLEBOX_COMPAT); | |
6bc6ca62 | 109 | /* |
1d2491e2 | 110 | * Add some dummy ALPN protocols so that the ClientHello is at least |
6bc6ca62 | 111 | * F5_WORKAROUND_MIN_MSG_LEN bytes long - meaning padding will be |
1d2491e2 | 112 | * needed. |
6bc6ca62 MC |
113 | */ |
114 | if (currtest == TEST_ADD_PADDING | |
1d2491e2 MC |
115 | && (!TEST_false(SSL_CTX_set_alpn_protos(ctx, |
116 | (unsigned char *)alpn_prots, | |
117 | sizeof(alpn_prots) - 1)))) | |
9362c93e | 118 | goto end; |
a105d560 | 119 | |
6bc6ca62 | 120 | break; |
3b848c64 | 121 | |
6bc6ca62 MC |
122 | default: |
123 | goto end; | |
124 | } | |
9362c93e | 125 | |
6bc6ca62 | 126 | con = SSL_new(ctx); |
a105d560 | 127 | if (!TEST_ptr(con)) |
6bc6ca62 | 128 | goto end; |
3b848c64 | 129 | |
6bc6ca62 MC |
130 | if (currtest == TEST_ADD_PADDING_AND_PSK) { |
131 | sessbio = BIO_new_file(sessionfile, "r"); | |
a105d560 MC |
132 | if (!TEST_ptr(sessbio)) { |
133 | TEST_info("Unable to open session.pem"); | |
6bc6ca62 | 134 | goto end; |
3b848c64 | 135 | } |
6bc6ca62 | 136 | sess = PEM_read_bio_SSL_SESSION(sessbio, NULL, NULL, NULL); |
a105d560 MC |
137 | if (!TEST_ptr(sess)) { |
138 | TEST_info("Unable to load SSL_SESSION"); | |
3b848c64 MC |
139 | goto end; |
140 | } | |
6bc6ca62 MC |
141 | /* |
142 | * We reset the creation time so that we don't discard the session as | |
143 | * too old. | |
144 | */ | |
3a63c0ed | 145 | if (!TEST_true(SSL_SESSION_set_time(sess, (long)time(NULL))) |
a105d560 | 146 | || !TEST_true(SSL_set_session(con, sess))) |
c14e790d | 147 | goto end; |
6bc6ca62 | 148 | } |
c14e790d | 149 | |
6bc6ca62 MC |
150 | rbio = BIO_new(BIO_s_mem()); |
151 | wbio = BIO_new(BIO_s_mem()); | |
a105d560 | 152 | if (!TEST_ptr(rbio)|| !TEST_ptr(wbio)) { |
6bc6ca62 MC |
153 | BIO_free(rbio); |
154 | BIO_free(wbio); | |
155 | goto end; | |
156 | } | |
c14e790d | 157 | |
6bc6ca62 MC |
158 | SSL_set_bio(con, rbio, wbio); |
159 | SSL_set_connect_state(con); | |
c14e790d | 160 | |
6bc6ca62 | 161 | if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) { |
a105d560 MC |
162 | if (!TEST_true(SSL_set_session_ticket_ext(con, dummytick, |
163 | strlen(dummytick)))) | |
3b848c64 | 164 | goto end; |
6bc6ca62 | 165 | } |
c14e790d | 166 | |
a105d560 | 167 | if (!TEST_int_le(SSL_connect(con), 0)) { |
6bc6ca62 MC |
168 | /* This shouldn't succeed because we don't have a server! */ |
169 | goto end; | |
170 | } | |
c14e790d | 171 | |
6bc6ca62 | 172 | len = BIO_get_mem_data(wbio, (char **)&data); |
a105d560 MC |
173 | if (!TEST_true(PACKET_buf_init(&pkt, data, len)) |
174 | /* Skip the record header */ | |
175 | || !PACKET_forward(&pkt, SSL3_RT_HEADER_LENGTH)) | |
6bc6ca62 MC |
176 | goto end; |
177 | ||
178 | msglen = PACKET_remaining(&pkt); | |
179 | ||
180 | /* Skip the handshake message header */ | |
a105d560 MC |
181 | if (!TEST_true(PACKET_forward(&pkt, SSL3_HM_HEADER_LENGTH)) |
182 | /* Skip client version and random */ | |
183 | || !TEST_true(PACKET_forward(&pkt, CLIENT_VERSION_LEN | |
184 | + SSL3_RANDOM_SIZE)) | |
185 | /* Skip session id */ | |
186 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
187 | /* Skip ciphers */ | |
188 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt, &pkt2)) | |
189 | /* Skip compression */ | |
190 | || !TEST_true(PACKET_get_length_prefixed_1(&pkt, &pkt2)) | |
191 | /* Extensions len */ | |
192 | || !TEST_true(PACKET_as_length_prefixed_2(&pkt, &pkt2))) | |
6bc6ca62 MC |
193 | goto end; |
194 | ||
195 | /* Loop through all extensions */ | |
196 | while (PACKET_remaining(&pkt2)) { | |
197 | ||
a105d560 MC |
198 | if (!TEST_true(PACKET_get_net_2(&pkt2, &type)) |
199 | || !TEST_true(PACKET_get_length_prefixed_2(&pkt2, &pkt3))) | |
3b848c64 MC |
200 | goto end; |
201 | ||
6bc6ca62 MC |
202 | if (type == TLSEXT_TYPE_session_ticket) { |
203 | if (currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) { | |
a105d560 MC |
204 | if (TEST_true(PACKET_equal(&pkt3, dummytick, |
205 | strlen(dummytick)))) { | |
6bc6ca62 MC |
206 | /* Ticket data is as we expected */ |
207 | testresult = 1; | |
3b848c64 | 208 | } |
a105d560 | 209 | goto end; |
3b848c64 | 210 | } |
3b848c64 | 211 | } |
6bc6ca62 | 212 | if (type == TLSEXT_TYPE_padding) { |
a105d560 MC |
213 | if (!TEST_false(currtest == TEST_PADDING_NOT_NEEDED)) |
214 | goto end; | |
215 | else if (TEST_true(currtest == TEST_ADD_PADDING | |
216 | || currtest == TEST_ADD_PADDING_AND_PSK)) | |
217 | testresult = TEST_true(msglen == F5_WORKAROUND_MAX_MSG_LEN); | |
3b848c64 MC |
218 | } |
219 | } | |
220 | ||
a105d560 MC |
221 | if (currtest == TEST_PADDING_NOT_NEEDED) |
222 | testresult = 1; | |
223 | ||
6bc6ca62 MC |
224 | end: |
225 | SSL_free(con); | |
226 | SSL_CTX_free(ctx); | |
227 | SSL_SESSION_free(sess); | |
228 | BIO_free(sessbio); | |
6bc6ca62 MC |
229 | |
230 | return testresult; | |
231 | } | |
232 | ||
ad887416 | 233 | int setup_tests(void) |
6bc6ca62 | 234 | { |
ad887416 P |
235 | if (!TEST_ptr(sessionfile = test_get_argument(0))) |
236 | return 0; | |
6bc6ca62 MC |
237 | |
238 | ADD_ALL_TESTS(test_client_hello, TOTAL_NUM_TESTS); | |
ad887416 | 239 | return 1; |
3b848c64 | 240 | } |