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b67cb09f TS |
1 | /* |
2 | * Copyright 2016-2022 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the Apache License 2.0 (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 | |
8 | */ | |
9 | ||
10 | /* | |
11 | * We need access to the deprecated low level HMAC APIs for legacy purposes | |
12 | * when the deprecated calls are not hidden | |
13 | */ | |
14 | #ifndef OPENSSL_NO_DEPRECATED_3_0 | |
15 | # define OPENSSL_SUPPRESS_DEPRECATED | |
16 | #endif | |
17 | ||
18 | #include <openssl/ssl.h> | |
19 | #include "internal/nelem.h" | |
20 | #include "helpers/ssltestlib.h" | |
21 | #include "testutil.h" | |
22 | #include "../ssl/ssl_local.h" | |
23 | ||
24 | #undef OSSL_NO_USABLE_TLS1_3 | |
25 | #if defined(OPENSSL_NO_TLS1_3) \ | |
26 | || (defined(OPENSSL_NO_EC) && defined(OPENSSL_NO_DH)) | |
27 | /* | |
28 | * If we don't have ec or dh then there are no built-in groups that are usable | |
29 | * with TLSv1.3 | |
30 | */ | |
31 | # define OSSL_NO_USABLE_TLS1_3 | |
32 | #endif | |
33 | ||
34 | #if !defined(OSSL_NO_USEABLE_TLS1_3) | |
35 | ||
36 | static char *certsdir = NULL; | |
37 | static char *cert = NULL; | |
38 | static char *privkey = NULL; | |
39 | ||
40 | static int client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey) | |
41 | { | |
42 | X509 *xcert; | |
43 | EVP_PKEY *privpkey; | |
44 | BIO *in = NULL; | |
45 | BIO *priv_in = NULL; | |
46 | ||
47 | /* Check that SSL_get0_peer_certificate() returns something sensible */ | |
48 | if (!TEST_ptr(SSL_get0_peer_certificate(ssl))) | |
49 | return 0; | |
50 | ||
51 | in = BIO_new_file(cert, "r"); | |
52 | if (!TEST_ptr(in)) | |
53 | return 0; | |
54 | ||
55 | if (!TEST_ptr(xcert = X509_new_ex(NULL, NULL)) | |
56 | || !TEST_ptr(PEM_read_bio_X509(in, &xcert, NULL, NULL)) | |
57 | || !TEST_ptr(priv_in = BIO_new_file(privkey, "r")) | |
58 | || !TEST_ptr(privpkey = PEM_read_bio_PrivateKey_ex(priv_in, NULL, | |
59 | NULL, NULL, | |
60 | NULL, NULL))) | |
61 | goto err; | |
62 | ||
63 | *x509 = xcert; | |
64 | *pkey = privpkey; | |
65 | ||
66 | BIO_free(in); | |
67 | BIO_free(priv_in); | |
68 | return 1; | |
69 | err: | |
70 | X509_free(xcert); | |
71 | BIO_free(in); | |
72 | BIO_free(priv_in); | |
73 | return 0; | |
74 | } | |
75 | ||
76 | static int verify_cb(int preverify_ok, X509_STORE_CTX *x509_ctx) | |
77 | { | |
78 | return 1; | |
79 | } | |
80 | ||
81 | /* | |
82 | * Test 0 = app pre-compresses certificate in SSL | |
83 | * Test 1 = app pre-compresses certificate in SSL_CTX | |
84 | * Test 2 = app pre-compresses certificate in SSL_CTX, client authentication | |
85 | * Test 3 = app pre-compresses certificate in SSL_CTX, but it's unused due to prefs | |
86 | */ | |
87 | /* Compression helper */ | |
88 | static int ssl_comp_cert(SSL *ssl, int alg) | |
89 | { | |
90 | unsigned char *comp_data = NULL; | |
91 | size_t comp_len = 0; | |
92 | size_t orig_len = 0; | |
93 | int retval = 0; | |
94 | ||
95 | if (!TEST_size_t_gt(comp_len = SSL_get1_compressed_cert(ssl, alg, &comp_data, &orig_len), 0)) | |
96 | goto err; | |
97 | ||
98 | if (!TEST_true(SSL_set1_compressed_cert(ssl, alg, comp_data, comp_len, orig_len))) | |
99 | goto err; | |
100 | retval = alg; | |
101 | ||
102 | err: | |
103 | OPENSSL_free(comp_data); | |
104 | return retval; | |
105 | } | |
106 | ||
107 | static void cert_comp_info_cb(const SSL *s, int where, int ret) | |
108 | { | |
109 | int *seen = (int*)SSL_get_app_data(s); | |
110 | ||
111 | if (SSL_is_server(s)) { | |
112 | /* TLS_ST_SR_COMP_CERT */ | |
113 | if (!strcmp(SSL_state_string(s), "TRCCC") && seen != NULL) | |
114 | *seen = 1; | |
115 | } else { | |
116 | /* TLS_ST_CR_COMP_CERT */ | |
117 | if (!strcmp(SSL_state_string(s), "TRSCC") && seen != NULL) | |
118 | *seen = 1; | |
119 | } | |
120 | } | |
121 | ||
122 | static int test_ssl_cert_comp(int test) | |
123 | { | |
124 | SSL_CTX *cctx = NULL, *sctx = NULL; | |
125 | SSL *clientssl = NULL, *serverssl = NULL; | |
126 | int testresult = 0; | |
127 | int expected_client = TLSEXT_comp_cert_none; | |
128 | int expected_server = TLSEXT_comp_cert_none; | |
129 | int client_seen = 0; | |
130 | int server_seen = 0; | |
131 | /* reverse default order */ | |
132 | int server_pref[] = { TLSEXT_comp_cert_zstd, TLSEXT_comp_cert_zlib, TLSEXT_comp_cert_brotli }; | |
133 | /* default order */ | |
134 | int client_pref[] = { TLSEXT_comp_cert_brotli, TLSEXT_comp_cert_zlib, TLSEXT_comp_cert_zstd }; | |
135 | ||
136 | /* one of these *must* be defined! */ | |
137 | #ifndef OPENSSL_NO_BROTLI | |
138 | expected_server = TLSEXT_comp_cert_brotli; | |
139 | expected_client = TLSEXT_comp_cert_brotli; | |
140 | #endif | |
141 | #ifndef OPENSSL_NO_ZLIB | |
142 | expected_server = TLSEXT_comp_cert_zlib; | |
143 | if (expected_client == TLSEXT_comp_cert_none) | |
144 | expected_client = TLSEXT_comp_cert_zlib; | |
145 | #endif | |
146 | #ifndef OPENSSL_NO_ZSTD | |
147 | expected_server = TLSEXT_comp_cert_zstd; | |
148 | if (expected_client == TLSEXT_comp_cert_none) | |
149 | expected_client = TLSEXT_comp_cert_zstd; | |
150 | #endif | |
dc45bfb4 TS |
151 | /* |
152 | * If there's only one comp algorithm, pref won't do much | |
153 | * Coverity can get confused in this case, and consider test == 3 | |
154 | * to be DEADCODE | |
155 | */ | |
b67cb09f TS |
156 | if (test == 3 && expected_client == expected_server) { |
157 | TEST_info("Only one compression algorithm configured"); | |
158 | return 1; | |
159 | } | |
160 | ||
161 | if (!TEST_true(create_ssl_ctx_pair(NULL, TLS_server_method(), | |
162 | TLS_client_method(), | |
163 | TLS1_3_VERSION, 0, | |
164 | &sctx, &cctx, cert, privkey))) | |
165 | goto end; | |
166 | if (test == 3) { | |
dc45bfb4 | 167 | /* coverity[deadcode] */ |
b67cb09f TS |
168 | server_pref[0] = expected_server; |
169 | server_pref[1] = expected_client; | |
170 | if (!TEST_true(SSL_CTX_set1_cert_comp_preference(sctx, server_pref, 2))) | |
171 | goto end; | |
172 | client_pref[0] = expected_client; | |
173 | if (!TEST_true(SSL_CTX_set1_cert_comp_preference(cctx, client_pref, 1))) | |
174 | goto end; | |
175 | } else { | |
176 | if (!TEST_true(SSL_CTX_set1_cert_comp_preference(sctx, server_pref, OSSL_NELEM(server_pref)))) | |
177 | goto end; | |
178 | if (!TEST_true(SSL_CTX_set1_cert_comp_preference(cctx, client_pref, OSSL_NELEM(client_pref)))) | |
179 | goto end; | |
180 | } | |
181 | if (test == 2) { | |
182 | /* Use callbacks from test_client_cert_cb() */ | |
183 | SSL_CTX_set_client_cert_cb(cctx, client_cert_cb); | |
184 | SSL_CTX_set_verify(sctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_cb); | |
185 | } | |
186 | ||
187 | if (test == 1 || test== 2 || test == 3) { | |
188 | if (!TEST_true(SSL_CTX_compress_certs(sctx, expected_server))) | |
189 | goto end; | |
190 | } | |
191 | ||
192 | if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl, | |
193 | NULL, NULL))) | |
194 | goto end; | |
195 | ||
196 | if (!TEST_true(SSL_set_app_data(clientssl, &client_seen))) | |
197 | goto end; | |
198 | if (!TEST_true(SSL_set_app_data(serverssl, &server_seen))) | |
199 | goto end; | |
200 | SSL_set_info_callback(clientssl, cert_comp_info_cb); | |
201 | SSL_set_info_callback(serverssl, cert_comp_info_cb); | |
202 | ||
203 | if (test == 0) { | |
204 | if (!TEST_int_eq(ssl_comp_cert(serverssl, expected_server), expected_server)) | |
205 | goto end; | |
206 | } | |
207 | ||
208 | if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))) | |
209 | goto end; | |
210 | if (test == 3) { | |
dc45bfb4 | 211 | /* coverity[deadcode] */ |
b67cb09f TS |
212 | SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(serverssl); |
213 | ||
214 | /* expect that the pre-compressed cert won't be used */ | |
215 | if (!TEST_int_eq(sc->cert->key->cert_comp_used, 0)) | |
216 | goto end; | |
217 | ||
218 | if (!TEST_false(*(int*)SSL_get_app_data(clientssl))) | |
219 | goto end; | |
220 | } else { | |
221 | SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(serverssl); | |
222 | ||
223 | if (!TEST_int_gt(sc->cert->key->cert_comp_used, 0)) | |
224 | goto end; | |
225 | ||
226 | if (!TEST_true(*(int*)SSL_get_app_data(clientssl))) | |
227 | goto end; | |
228 | } | |
229 | ||
230 | if (test == 2) { | |
231 | /* Only for client auth */ | |
232 | if (!TEST_true(*(int*)SSL_get_app_data(serverssl))) | |
233 | goto end; | |
234 | } | |
235 | ||
236 | testresult = 1; | |
237 | ||
238 | end: | |
239 | SSL_free(serverssl); | |
240 | SSL_free(clientssl); | |
241 | SSL_CTX_free(sctx); | |
242 | SSL_CTX_free(cctx); | |
243 | ||
244 | return testresult; | |
245 | } | |
246 | #endif | |
247 | ||
248 | OPT_TEST_DECLARE_USAGE("certdir\n") | |
249 | ||
250 | int setup_tests(void) | |
251 | { | |
252 | #if !defined(OSSL_NO_USEABLE_TLS1_3) | |
253 | if (!test_skip_common_options()) { | |
254 | TEST_error("Error parsing test options\n"); | |
255 | return 0; | |
256 | } | |
257 | ||
258 | if (!TEST_ptr(certsdir = test_get_argument(0))) | |
259 | return 0; | |
260 | ||
261 | cert = test_mk_file_path(certsdir, "servercert.pem"); | |
262 | if (cert == NULL) | |
263 | goto err; | |
264 | ||
265 | privkey = test_mk_file_path(certsdir, "serverkey.pem"); | |
266 | if (privkey == NULL) | |
267 | goto err; | |
268 | ||
269 | ADD_ALL_TESTS(test_ssl_cert_comp, 4); | |
270 | return 1; | |
271 | ||
272 | err: | |
273 | OPENSSL_free(cert); | |
274 | OPENSSL_free(privkey); | |
275 | return 0; | |
276 | #else | |
277 | return 1; | |
278 | #endif | |
279 | } | |
280 | ||
281 | void cleanup_tests(void) | |
282 | { | |
283 | #if !defined(OSSL_NO_USEABLE_TLS1_3) | |
284 | OPENSSL_free(cert); | |
285 | OPENSSL_free(privkey); | |
286 | #endif | |
287 | } |