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25670f3e MC |
1 | /* |
2 | * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
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 | |
8 | */ | |
9 | ||
10 | #include <openssl/ocsp.h> | |
11 | #include "../ssl_locl.h" | |
12 | #include "statem_locl.h" | |
13 | ||
14 | /* | |
15 | * Parse the client's renegotiation binding and abort if it's not right | |
16 | */ | |
f97d4c37 MC |
17 | int tls_parse_ctos_renegotiate(SSL *s, PACKET *pkt, X509 *x, size_t chain, |
18 | int *al) | |
25670f3e MC |
19 | { |
20 | unsigned int ilen; | |
21 | const unsigned char *data; | |
22 | ||
23 | /* Parse the length byte */ | |
24 | if (!PACKET_get_1(pkt, &ilen) | |
25 | || !PACKET_get_bytes(pkt, &data, ilen)) { | |
7fe97c07 | 26 | SSLerr(SSL_F_TLS_PARSE_CTOS_RENEGOTIATE, |
25670f3e MC |
27 | SSL_R_RENEGOTIATION_ENCODING_ERR); |
28 | *al = SSL_AD_ILLEGAL_PARAMETER; | |
29 | return 0; | |
30 | } | |
31 | ||
32 | /* Check that the extension matches */ | |
33 | if (ilen != s->s3->previous_client_finished_len) { | |
7fe97c07 | 34 | SSLerr(SSL_F_TLS_PARSE_CTOS_RENEGOTIATE, |
25670f3e MC |
35 | SSL_R_RENEGOTIATION_MISMATCH); |
36 | *al = SSL_AD_HANDSHAKE_FAILURE; | |
37 | return 0; | |
38 | } | |
39 | ||
40 | if (memcmp(data, s->s3->previous_client_finished, | |
41 | s->s3->previous_client_finished_len)) { | |
7fe97c07 | 42 | SSLerr(SSL_F_TLS_PARSE_CTOS_RENEGOTIATE, |
25670f3e MC |
43 | SSL_R_RENEGOTIATION_MISMATCH); |
44 | *al = SSL_AD_HANDSHAKE_FAILURE; | |
45 | return 0; | |
46 | } | |
47 | ||
48 | s->s3->send_connection_binding = 1; | |
49 | ||
50 | return 1; | |
51 | } | |
52 | ||
1266eefd MC |
53 | /*- |
54 | * The servername extension is treated as follows: | |
55 | * | |
56 | * - Only the hostname type is supported with a maximum length of 255. | |
57 | * - The servername is rejected if too long or if it contains zeros, | |
58 | * in which case an fatal alert is generated. | |
59 | * - The servername field is maintained together with the session cache. | |
60 | * - When a session is resumed, the servername call back invoked in order | |
61 | * to allow the application to position itself to the right context. | |
62 | * - The servername is acknowledged if it is new for a session or when | |
63 | * it is identical to a previously used for the same session. | |
64 | * Applications can control the behaviour. They can at any time | |
65 | * set a 'desirable' servername for a new SSL object. This can be the | |
66 | * case for example with HTTPS when a Host: header field is received and | |
67 | * a renegotiation is requested. In this case, a possible servername | |
68 | * presented in the new client hello is only acknowledged if it matches | |
69 | * the value of the Host: field. | |
70 | * - Applications must use SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | |
71 | * if they provide for changing an explicit servername context for the | |
72 | * session, i.e. when the session has been established with a servername | |
73 | * extension. | |
74 | * - On session reconnect, the servername extension may be absent. | |
75 | */ | |
f97d4c37 MC |
76 | int tls_parse_ctos_server_name(SSL *s, PACKET *pkt, X509 *x, size_t chain, |
77 | int *al) | |
25670f3e MC |
78 | { |
79 | unsigned int servname_type; | |
80 | PACKET sni, hostname; | |
81 | ||
25670f3e MC |
82 | if (!PACKET_as_length_prefixed_2(pkt, &sni) |
83 | /* ServerNameList must be at least 1 byte long. */ | |
84 | || PACKET_remaining(&sni) == 0) { | |
85 | *al = SSL_AD_DECODE_ERROR; | |
86 | return 0; | |
87 | } | |
88 | ||
89 | /* | |
90 | * Although the server_name extension was intended to be | |
91 | * extensible to new name types, RFC 4366 defined the | |
1266eefd | 92 | * syntax inextensibly and OpenSSL 1.0.x parses it as |
25670f3e MC |
93 | * such. |
94 | * RFC 6066 corrected the mistake but adding new name types | |
95 | * is nevertheless no longer feasible, so act as if no other | |
96 | * SNI types can exist, to simplify parsing. | |
97 | * | |
98 | * Also note that the RFC permits only one SNI value per type, | |
99 | * i.e., we can only have a single hostname. | |
100 | */ | |
101 | if (!PACKET_get_1(&sni, &servname_type) | |
102 | || servname_type != TLSEXT_NAMETYPE_host_name | |
103 | || !PACKET_as_length_prefixed_2(&sni, &hostname)) { | |
104 | *al = SSL_AD_DECODE_ERROR; | |
105 | return 0; | |
106 | } | |
107 | ||
108 | if (!s->hit) { | |
109 | if (PACKET_remaining(&hostname) > TLSEXT_MAXLEN_host_name) { | |
110 | *al = TLS1_AD_UNRECOGNIZED_NAME; | |
111 | return 0; | |
112 | } | |
113 | ||
114 | if (PACKET_contains_zero_byte(&hostname)) { | |
115 | *al = TLS1_AD_UNRECOGNIZED_NAME; | |
116 | return 0; | |
117 | } | |
118 | ||
119 | if (!PACKET_strndup(&hostname, &s->session->tlsext_hostname)) { | |
120 | *al = TLS1_AD_INTERNAL_ERROR; | |
121 | return 0; | |
122 | } | |
123 | ||
124 | s->servername_done = 1; | |
125 | } else { | |
126 | /* | |
127 | * TODO(openssl-team): if the SNI doesn't match, we MUST | |
128 | * fall back to a full handshake. | |
129 | */ | |
130 | s->servername_done = s->session->tlsext_hostname | |
131 | && PACKET_equal(&hostname, s->session->tlsext_hostname, | |
132 | strlen(s->session->tlsext_hostname)); | |
133 | } | |
134 | ||
135 | return 1; | |
136 | } | |
137 | ||
138 | #ifndef OPENSSL_NO_SRP | |
f97d4c37 | 139 | int tls_parse_ctos_srp(SSL *s, PACKET *pkt, X509 *x, size_t chain, int *al) |
25670f3e MC |
140 | { |
141 | PACKET srp_I; | |
142 | ||
143 | if (!PACKET_as_length_prefixed_1(pkt, &srp_I) | |
144 | || PACKET_contains_zero_byte(&srp_I)) { | |
145 | *al = SSL_AD_DECODE_ERROR; | |
146 | return 0; | |
147 | } | |
148 | ||
149 | /* | |
150 | * TODO(openssl-team): currently, we re-authenticate the user | |
151 | * upon resumption. Instead, we MUST ignore the login. | |
152 | */ | |
153 | if (!PACKET_strndup(&srp_I, &s->srp_ctx.login)) { | |
154 | *al = TLS1_AD_INTERNAL_ERROR; | |
155 | return 0; | |
156 | } | |
157 | ||
158 | return 1; | |
159 | } | |
160 | #endif | |
161 | ||
162 | #ifndef OPENSSL_NO_EC | |
f97d4c37 MC |
163 | int tls_parse_ctos_ec_pt_formats(SSL *s, PACKET *pkt, X509 *x, size_t chain, |
164 | int *al) | |
25670f3e MC |
165 | { |
166 | PACKET ec_point_format_list; | |
167 | ||
168 | if (!PACKET_as_length_prefixed_1(pkt, &ec_point_format_list) | |
169 | || PACKET_remaining(&ec_point_format_list) == 0) { | |
170 | *al = SSL_AD_DECODE_ERROR; | |
171 | return 0; | |
172 | } | |
173 | ||
174 | if (!s->hit) { | |
175 | if (!PACKET_memdup(&ec_point_format_list, | |
176 | &s->session->tlsext_ecpointformatlist, | |
177 | &s->session->tlsext_ecpointformatlist_length)) { | |
178 | *al = TLS1_AD_INTERNAL_ERROR; | |
179 | return 0; | |
180 | } | |
181 | } | |
182 | ||
183 | return 1; | |
184 | } | |
185 | #endif /* OPENSSL_NO_EC */ | |
186 | ||
f97d4c37 MC |
187 | int tls_parse_ctos_session_ticket(SSL *s, PACKET *pkt, X509 *x, size_t chain, |
188 | int *al) | |
25670f3e MC |
189 | { |
190 | if (s->tls_session_ticket_ext_cb && | |
191 | !s->tls_session_ticket_ext_cb(s, PACKET_data(pkt), | |
192 | PACKET_remaining(pkt), | |
193 | s->tls_session_ticket_ext_cb_arg)) { | |
194 | *al = TLS1_AD_INTERNAL_ERROR; | |
195 | return 0; | |
196 | } | |
197 | ||
198 | return 1; | |
199 | } | |
200 | ||
f97d4c37 | 201 | int tls_parse_ctos_sig_algs(SSL *s, PACKET *pkt, X509 *x, size_t chain, int *al) |
25670f3e MC |
202 | { |
203 | PACKET supported_sig_algs; | |
204 | ||
205 | if (!PACKET_as_length_prefixed_2(pkt, &supported_sig_algs) | |
206 | || (PACKET_remaining(&supported_sig_algs) % 2) != 0 | |
207 | || PACKET_remaining(&supported_sig_algs) == 0) { | |
208 | *al = SSL_AD_DECODE_ERROR; | |
209 | return 0; | |
210 | } | |
211 | ||
212 | if (!s->hit && !tls1_save_sigalgs(s, PACKET_data(&supported_sig_algs), | |
213 | PACKET_remaining(&supported_sig_algs))) { | |
214 | *al = TLS1_AD_INTERNAL_ERROR; | |
215 | return 0; | |
216 | } | |
217 | ||
218 | return 1; | |
219 | } | |
220 | ||
ab83e314 | 221 | #ifndef OPENSSL_NO_OCSP |
f97d4c37 MC |
222 | int tls_parse_ctos_status_request(SSL *s, PACKET *pkt, X509 *x, size_t chain, |
223 | int *al) | |
25670f3e | 224 | { |
1266eefd MC |
225 | PACKET responder_id_list, exts; |
226 | ||
25670f3e MC |
227 | if (!PACKET_get_1(pkt, (unsigned int *)&s->tlsext_status_type)) { |
228 | *al = SSL_AD_DECODE_ERROR; | |
229 | return 0; | |
230 | } | |
ab83e314 | 231 | |
1266eefd | 232 | if (s->tlsext_status_type != TLSEXT_STATUSTYPE_ocsp) { |
25670f3e | 233 | /* |
1266eefd | 234 | * We don't know what to do with any other type so ignore it. |
25670f3e | 235 | */ |
cbb09544 | 236 | s->tlsext_status_type = TLSEXT_STATUSTYPE_nothing; |
1266eefd MC |
237 | return 1; |
238 | } | |
25670f3e | 239 | |
1266eefd MC |
240 | if (!PACKET_get_length_prefixed_2 (pkt, &responder_id_list)) { |
241 | *al = SSL_AD_DECODE_ERROR; | |
242 | return 0; | |
243 | } | |
25670f3e | 244 | |
1266eefd MC |
245 | /* |
246 | * We remove any OCSP_RESPIDs from a previous handshake | |
247 | * to prevent unbounded memory growth - CVE-2016-6304 | |
248 | */ | |
249 | sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); | |
250 | if (PACKET_remaining(&responder_id_list) > 0) { | |
251 | s->tlsext_ocsp_ids = sk_OCSP_RESPID_new_null(); | |
252 | if (s->tlsext_ocsp_ids == NULL) { | |
253 | *al = SSL_AD_INTERNAL_ERROR; | |
254 | return 0; | |
255 | } | |
256 | } else { | |
257 | s->tlsext_ocsp_ids = NULL; | |
258 | } | |
25670f3e | 259 | |
1266eefd MC |
260 | while (PACKET_remaining(&responder_id_list) > 0) { |
261 | OCSP_RESPID *id; | |
262 | PACKET responder_id; | |
263 | const unsigned char *id_data; | |
25670f3e | 264 | |
1266eefd MC |
265 | if (!PACKET_get_length_prefixed_2(&responder_id_list, &responder_id) |
266 | || PACKET_remaining(&responder_id) == 0) { | |
267 | *al = SSL_AD_DECODE_ERROR; | |
268 | return 0; | |
269 | } | |
25670f3e | 270 | |
1266eefd MC |
271 | id_data = PACKET_data(&responder_id); |
272 | /* TODO(size_t): Convert d2i_* to size_t */ | |
273 | id = d2i_OCSP_RESPID(NULL, &id_data, | |
274 | (int)PACKET_remaining(&responder_id)); | |
275 | if (id == NULL) { | |
276 | *al = SSL_AD_DECODE_ERROR; | |
277 | return 0; | |
25670f3e MC |
278 | } |
279 | ||
1266eefd MC |
280 | if (id_data != PACKET_end(&responder_id)) { |
281 | OCSP_RESPID_free(id); | |
25670f3e MC |
282 | *al = SSL_AD_DECODE_ERROR; |
283 | return 0; | |
284 | } | |
285 | ||
1266eefd MC |
286 | if (!sk_OCSP_RESPID_push(s->tlsext_ocsp_ids, id)) { |
287 | OCSP_RESPID_free(id); | |
288 | *al = SSL_AD_INTERNAL_ERROR; | |
289 | return 0; | |
290 | } | |
291 | } | |
292 | ||
293 | /* Read in request_extensions */ | |
294 | if (!PACKET_as_length_prefixed_2(pkt, &exts)) { | |
295 | *al = SSL_AD_DECODE_ERROR; | |
296 | return 0; | |
297 | } | |
298 | ||
299 | if (PACKET_remaining(&exts) > 0) { | |
300 | const unsigned char *ext_data = PACKET_data(&exts); | |
301 | ||
302 | sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, | |
303 | X509_EXTENSION_free); | |
304 | s->tlsext_ocsp_exts = | |
305 | d2i_X509_EXTENSIONS(NULL, &ext_data, (int)PACKET_remaining(&exts)); | |
306 | if (s->tlsext_ocsp_exts == NULL || ext_data != PACKET_end(&exts)) { | |
307 | *al = SSL_AD_DECODE_ERROR; | |
308 | return 0; | |
25670f3e | 309 | } |
25670f3e MC |
310 | } |
311 | ||
312 | return 1; | |
313 | } | |
ab83e314 | 314 | #endif |
25670f3e MC |
315 | |
316 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
f97d4c37 | 317 | int tls_parse_ctos_npn(SSL *s, PACKET *pkt, X509 *x, size_t chain, int *al) |
25670f3e | 318 | { |
1266eefd MC |
319 | /* |
320 | * We shouldn't accept this extension on a | |
321 | * renegotiation. | |
322 | * | |
323 | * s->new_session will be set on renegotiation, but we | |
324 | * probably shouldn't rely that it couldn't be set on | |
325 | * the initial renegotiation too in certain cases (when | |
326 | * there's some other reason to disallow resuming an | |
327 | * earlier session -- the current code won't be doing | |
328 | * anything like that, but this might change). | |
329 | * | |
330 | * A valid sign that there's been a previous handshake | |
331 | * in this connection is if s->s3->tmp.finish_md_len > | |
332 | * 0. (We are talking about a check that will happen | |
333 | * in the Hello protocol round, well before a new | |
334 | * Finished message could have been computed.) | |
335 | */ | |
336 | if (s->s3->tmp.finish_md_len == 0) | |
25670f3e | 337 | s->s3->next_proto_neg_seen = 1; |
25670f3e MC |
338 | |
339 | return 1; | |
340 | } | |
341 | #endif | |
342 | ||
343 | /* | |
1266eefd MC |
344 | * Save the ALPN extension in a ClientHello.|pkt| holds the contents of the ALPN |
345 | * extension, not including type and length. |al| is a pointer to the alert | |
346 | * value to send in the event of a failure. Returns: 1 on success, 0 on error. | |
25670f3e | 347 | */ |
f97d4c37 | 348 | int tls_parse_ctos_alpn(SSL *s, PACKET *pkt, X509 *x, size_t chain, int *al) |
25670f3e MC |
349 | { |
350 | PACKET protocol_list, save_protocol_list, protocol; | |
351 | ||
352 | if (s->s3->tmp.finish_md_len != 0) | |
353 | return 1; | |
354 | ||
355 | if (!PACKET_as_length_prefixed_2(pkt, &protocol_list) | |
356 | || PACKET_remaining(&protocol_list) < 2) { | |
357 | *al = SSL_AD_DECODE_ERROR; | |
358 | return 0; | |
359 | } | |
360 | ||
361 | save_protocol_list = protocol_list; | |
362 | do { | |
363 | /* Protocol names can't be empty. */ | |
364 | if (!PACKET_get_length_prefixed_1(&protocol_list, &protocol) | |
365 | || PACKET_remaining(&protocol) == 0) { | |
366 | *al = SSL_AD_DECODE_ERROR; | |
367 | return 0; | |
368 | } | |
369 | } while (PACKET_remaining(&protocol_list) != 0); | |
370 | ||
371 | if (!PACKET_memdup(&save_protocol_list, | |
372 | &s->s3->alpn_proposed, &s->s3->alpn_proposed_len)) { | |
373 | *al = TLS1_AD_INTERNAL_ERROR; | |
374 | return 0; | |
375 | } | |
376 | ||
377 | return 1; | |
378 | } | |
379 | ||
380 | #ifndef OPENSSL_NO_SRTP | |
f97d4c37 | 381 | int tls_parse_ctos_use_srtp(SSL *s, PACKET *pkt, X509 *x, size_t chain, int *al) |
25670f3e | 382 | { |
25670f3e MC |
383 | STACK_OF(SRTP_PROTECTION_PROFILE) *srvr; |
384 | unsigned int ct, mki_len, id; | |
385 | int i, srtp_pref; | |
386 | PACKET subpkt; | |
387 | ||
388 | /* Ignore this if we have no SRTP profiles */ | |
389 | if (SSL_get_srtp_profiles(s) == NULL) | |
390 | return 1; | |
391 | ||
392 | /* Pull off the length of the cipher suite list and check it is even */ | |
1266eefd MC |
393 | if (!PACKET_get_net_2(pkt, &ct) || (ct & 1) != 0 |
394 | || !PACKET_get_sub_packet(pkt, &subpkt, ct)) { | |
7fe97c07 | 395 | SSLerr(SSL_F_TLS_PARSE_CTOS_USE_SRTP, |
25670f3e MC |
396 | SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST); |
397 | *al = SSL_AD_DECODE_ERROR; | |
398 | return 0; | |
399 | } | |
400 | ||
401 | srvr = SSL_get_srtp_profiles(s); | |
402 | s->srtp_profile = NULL; | |
403 | /* Search all profiles for a match initially */ | |
404 | srtp_pref = sk_SRTP_PROTECTION_PROFILE_num(srvr); | |
405 | ||
406 | while (PACKET_remaining(&subpkt)) { | |
407 | if (!PACKET_get_net_2(&subpkt, &id)) { | |
7fe97c07 | 408 | SSLerr(SSL_F_TLS_PARSE_CTOS_USE_SRTP, |
25670f3e MC |
409 | SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST); |
410 | *al = SSL_AD_DECODE_ERROR; | |
411 | return 0; | |
412 | } | |
413 | ||
414 | /* | |
415 | * Only look for match in profiles of higher preference than | |
416 | * current match. | |
417 | * If no profiles have been have been configured then this | |
418 | * does nothing. | |
419 | */ | |
420 | for (i = 0; i < srtp_pref; i++) { | |
d270de32 | 421 | SRTP_PROTECTION_PROFILE *sprof = |
1266eefd MC |
422 | sk_SRTP_PROTECTION_PROFILE_value(srvr, i); |
423 | ||
25670f3e MC |
424 | if (sprof->id == id) { |
425 | s->srtp_profile = sprof; | |
426 | srtp_pref = i; | |
427 | break; | |
428 | } | |
429 | } | |
430 | } | |
431 | ||
1266eefd | 432 | /* Now extract the MKI value as a sanity check, but discard it for now */ |
25670f3e | 433 | if (!PACKET_get_1(pkt, &mki_len)) { |
7fe97c07 | 434 | SSLerr(SSL_F_TLS_PARSE_CTOS_USE_SRTP, |
25670f3e MC |
435 | SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST); |
436 | *al = SSL_AD_DECODE_ERROR; | |
437 | return 0; | |
438 | } | |
439 | ||
440 | if (!PACKET_forward(pkt, mki_len) | |
441 | || PACKET_remaining(pkt)) { | |
7fe97c07 | 442 | SSLerr(SSL_F_TLS_PARSE_CTOS_USE_SRTP, SSL_R_BAD_SRTP_MKI_VALUE); |
25670f3e MC |
443 | *al = SSL_AD_DECODE_ERROR; |
444 | return 0; | |
445 | } | |
446 | ||
447 | return 1; | |
448 | } | |
449 | #endif | |
450 | ||
f97d4c37 | 451 | int tls_parse_ctos_etm(SSL *s, PACKET *pkt, X509 *x, size_t chain, int *al) |
25670f3e MC |
452 | { |
453 | if (!(s->options & SSL_OP_NO_ENCRYPT_THEN_MAC)) | |
454 | s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC; | |
455 | ||
456 | return 1; | |
457 | } | |
458 | ||
459 | /* | |
460 | * Checks a list of |groups| to determine if the |group_id| is in it. If it is | |
461 | * and |checkallow| is 1 then additionally check if the group is allowed to be | |
462 | * used. Returns 1 if the group is in the list (and allowed if |checkallow| is | |
463 | * 1) or 0 otherwise. | |
464 | */ | |
3cf96e88 | 465 | #ifndef OPENSSL_NO_TLS1_3 |
25670f3e MC |
466 | static int check_in_list(SSL *s, unsigned int group_id, |
467 | const unsigned char *groups, size_t num_groups, | |
468 | int checkallow) | |
469 | { | |
470 | size_t i; | |
471 | ||
472 | if (groups == NULL || num_groups == 0) | |
473 | return 0; | |
474 | ||
475 | for (i = 0; i < num_groups; i++, groups += 2) { | |
476 | unsigned int share_id = (groups[0] << 8) | (groups[1]); | |
477 | ||
478 | if (group_id == share_id | |
1266eefd MC |
479 | && (!checkallow |
480 | || tls_curve_allowed(s, groups, SSL_SECOP_CURVE_CHECK))) { | |
25670f3e MC |
481 | break; |
482 | } | |
483 | } | |
484 | ||
485 | /* If i == num_groups then not in the list */ | |
486 | return i < num_groups; | |
487 | } | |
3cf96e88 | 488 | #endif |
25670f3e MC |
489 | |
490 | /* | |
491 | * Process a key_share extension received in the ClientHello. |pkt| contains | |
492 | * the raw PACKET data for the extension. Returns 1 on success or 0 on failure. | |
493 | * If a failure occurs then |*al| is set to an appropriate alert value. | |
494 | */ | |
f97d4c37 MC |
495 | int tls_parse_ctos_key_share(SSL *s, PACKET *pkt, X509 *x, size_t chain, |
496 | int *al) | |
25670f3e | 497 | { |
3cf96e88 | 498 | #ifndef OPENSSL_NO_TLS1_3 |
25670f3e MC |
499 | unsigned int group_id; |
500 | PACKET key_share_list, encoded_pt; | |
501 | const unsigned char *clntcurves, *srvrcurves; | |
502 | size_t clnt_num_curves, srvr_num_curves; | |
503 | int group_nid, found = 0; | |
504 | unsigned int curve_flags; | |
505 | ||
506 | if (s->hit) | |
507 | return 1; | |
508 | ||
509 | /* Sanity check */ | |
510 | if (s->s3->peer_tmp != NULL) { | |
511 | *al = SSL_AD_INTERNAL_ERROR; | |
7fe97c07 | 512 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, ERR_R_INTERNAL_ERROR); |
25670f3e MC |
513 | return 0; |
514 | } | |
515 | ||
516 | if (!PACKET_as_length_prefixed_2(pkt, &key_share_list)) { | |
517 | *al = SSL_AD_HANDSHAKE_FAILURE; | |
7fe97c07 | 518 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, SSL_R_LENGTH_MISMATCH); |
25670f3e MC |
519 | return 0; |
520 | } | |
521 | ||
522 | /* Get our list of supported curves */ | |
523 | if (!tls1_get_curvelist(s, 0, &srvrcurves, &srvr_num_curves)) { | |
524 | *al = SSL_AD_INTERNAL_ERROR; | |
7fe97c07 | 525 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, ERR_R_INTERNAL_ERROR); |
25670f3e MC |
526 | return 0; |
527 | } | |
528 | ||
24b8e4b2 | 529 | /* |
70af3d8e | 530 | * Get the clients list of supported curves. |
24b8e4b2 MC |
531 | * TODO(TLS1.3): We should validate that we actually received |
532 | * supported_groups! | |
533 | */ | |
25670f3e MC |
534 | if (!tls1_get_curvelist(s, 1, &clntcurves, &clnt_num_curves)) { |
535 | *al = SSL_AD_INTERNAL_ERROR; | |
7fe97c07 | 536 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, ERR_R_INTERNAL_ERROR); |
25670f3e MC |
537 | return 0; |
538 | } | |
539 | ||
540 | while (PACKET_remaining(&key_share_list) > 0) { | |
541 | if (!PACKET_get_net_2(&key_share_list, &group_id) | |
542 | || !PACKET_get_length_prefixed_2(&key_share_list, &encoded_pt) | |
543 | || PACKET_remaining(&encoded_pt) == 0) { | |
544 | *al = SSL_AD_HANDSHAKE_FAILURE; | |
7fe97c07 | 545 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, |
25670f3e MC |
546 | SSL_R_LENGTH_MISMATCH); |
547 | return 0; | |
548 | } | |
549 | ||
550 | /* | |
551 | * If we already found a suitable key_share we loop through the | |
552 | * rest to verify the structure, but don't process them. | |
553 | */ | |
554 | if (found) | |
555 | continue; | |
556 | ||
557 | /* Check if this share is in supported_groups sent from client */ | |
558 | if (!check_in_list(s, group_id, clntcurves, clnt_num_curves, 0)) { | |
559 | *al = SSL_AD_HANDSHAKE_FAILURE; | |
7fe97c07 | 560 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, SSL_R_BAD_KEY_SHARE); |
25670f3e MC |
561 | return 0; |
562 | } | |
563 | ||
564 | /* Check if this share is for a group we can use */ | |
565 | if (!check_in_list(s, group_id, srvrcurves, srvr_num_curves, 1)) { | |
566 | /* Share not suitable */ | |
567 | continue; | |
568 | } | |
569 | ||
570 | group_nid = tls1_ec_curve_id2nid(group_id, &curve_flags); | |
571 | ||
572 | if (group_nid == 0) { | |
573 | *al = SSL_AD_INTERNAL_ERROR; | |
7fe97c07 | 574 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, |
25670f3e MC |
575 | SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS); |
576 | return 0; | |
577 | } | |
578 | ||
579 | if ((curve_flags & TLS_CURVE_TYPE) == TLS_CURVE_CUSTOM) { | |
580 | /* Can happen for some curves, e.g. X25519 */ | |
581 | EVP_PKEY *key = EVP_PKEY_new(); | |
582 | ||
583 | if (key == NULL || !EVP_PKEY_set_type(key, group_nid)) { | |
584 | *al = SSL_AD_INTERNAL_ERROR; | |
7fe97c07 | 585 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, ERR_R_EVP_LIB); |
25670f3e MC |
586 | EVP_PKEY_free(key); |
587 | return 0; | |
588 | } | |
589 | s->s3->peer_tmp = key; | |
590 | } else { | |
591 | /* Set up EVP_PKEY with named curve as parameters */ | |
592 | EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_EC, NULL); | |
1266eefd | 593 | |
25670f3e MC |
594 | if (pctx == NULL |
595 | || EVP_PKEY_paramgen_init(pctx) <= 0 | |
596 | || EVP_PKEY_CTX_set_ec_paramgen_curve_nid(pctx, | |
597 | group_nid) <= 0 | |
598 | || EVP_PKEY_paramgen(pctx, &s->s3->peer_tmp) <= 0) { | |
599 | *al = SSL_AD_INTERNAL_ERROR; | |
7fe97c07 | 600 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, ERR_R_EVP_LIB); |
25670f3e MC |
601 | EVP_PKEY_CTX_free(pctx); |
602 | return 0; | |
603 | } | |
604 | EVP_PKEY_CTX_free(pctx); | |
605 | pctx = NULL; | |
606 | } | |
607 | s->s3->group_id = group_id; | |
608 | ||
609 | if (!EVP_PKEY_set1_tls_encodedpoint(s->s3->peer_tmp, | |
610 | PACKET_data(&encoded_pt), | |
611 | PACKET_remaining(&encoded_pt))) { | |
612 | *al = SSL_AD_DECODE_ERROR; | |
7fe97c07 | 613 | SSLerr(SSL_F_TLS_PARSE_CTOS_KEY_SHARE, SSL_R_BAD_ECPOINT); |
25670f3e MC |
614 | return 0; |
615 | } | |
616 | ||
617 | found = 1; | |
618 | } | |
3cf96e88 | 619 | #endif |
25670f3e MC |
620 | |
621 | return 1; | |
622 | } | |
623 | ||
624 | #ifndef OPENSSL_NO_EC | |
f97d4c37 MC |
625 | int tls_parse_ctos_supported_groups(SSL *s, PACKET *pkt, X509 *x, size_t chain, |
626 | int *al) | |
25670f3e MC |
627 | { |
628 | PACKET supported_groups_list; | |
629 | ||
630 | /* Each group is 2 bytes and we must have at least 1. */ | |
631 | if (!PACKET_as_length_prefixed_2(pkt, &supported_groups_list) | |
632 | || PACKET_remaining(&supported_groups_list) == 0 | |
633 | || (PACKET_remaining(&supported_groups_list) % 2) != 0) { | |
634 | *al = SSL_AD_DECODE_ERROR; | |
635 | return 0; | |
636 | } | |
637 | ||
638 | if (!s->hit | |
639 | && !PACKET_memdup(&supported_groups_list, | |
640 | &s->session->tlsext_supportedgroupslist, | |
641 | &s->session->tlsext_supportedgroupslist_length)) { | |
642 | *al = SSL_AD_DECODE_ERROR; | |
643 | return 0; | |
644 | } | |
645 | ||
646 | return 1; | |
647 | } | |
648 | #endif | |
649 | ||
f97d4c37 | 650 | int tls_parse_ctos_ems(SSL *s, PACKET *pkt, X509 *x, size_t chain, int *al) |
25670f3e MC |
651 | { |
652 | /* The extension must always be empty */ | |
653 | if (PACKET_remaining(pkt) != 0) { | |
654 | *al = SSL_AD_DECODE_ERROR; | |
655 | return 0; | |
656 | } | |
657 | ||
658 | s->s3->flags |= TLS1_FLAGS_RECEIVED_EXTMS; | |
659 | ||
660 | return 1; | |
661 | } | |
7da160b0 | 662 | |
1266eefd MC |
663 | /* |
664 | * Add the server's renegotiation binding | |
665 | */ | |
30aeba43 MC |
666 | int tls_construct_stoc_renegotiate(SSL *s, WPACKET *pkt, X509 *x, size_t chain, |
667 | int *al) | |
7da160b0 MC |
668 | { |
669 | if (!s->s3->send_connection_binding) | |
670 | return 1; | |
671 | ||
672 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_renegotiate) | |
673 | || !WPACKET_start_sub_packet_u16(pkt) | |
674 | || !WPACKET_start_sub_packet_u8(pkt) | |
675 | || !WPACKET_memcpy(pkt, s->s3->previous_client_finished, | |
676 | s->s3->previous_client_finished_len) | |
677 | || !WPACKET_memcpy(pkt, s->s3->previous_server_finished, | |
678 | s->s3->previous_server_finished_len) | |
679 | || !WPACKET_close(pkt) | |
680 | || !WPACKET_close(pkt)) { | |
7fe97c07 | 681 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_RENEGOTIATE, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
682 | return 0; |
683 | } | |
684 | ||
685 | return 1; | |
686 | } | |
687 | ||
30aeba43 MC |
688 | int tls_construct_stoc_server_name(SSL *s, WPACKET *pkt, X509 *x, size_t chain, |
689 | int *al) | |
7da160b0 MC |
690 | { |
691 | if (s->hit || s->servername_done != 1 | |
692 | || s->session->tlsext_hostname == NULL) | |
693 | return 1; | |
694 | ||
695 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_server_name) | |
696 | || !WPACKET_put_bytes_u16(pkt, 0)) { | |
7fe97c07 | 697 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_SERVER_NAME, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
698 | return 0; |
699 | } | |
700 | ||
701 | return 1; | |
702 | } | |
703 | ||
704 | #ifndef OPENSSL_NO_EC | |
30aeba43 MC |
705 | int tls_construct_stoc_ec_pt_formats(SSL *s, WPACKET *pkt, X509 *x, |
706 | size_t chain, int *al) | |
7da160b0 MC |
707 | { |
708 | unsigned long alg_k = s->s3->tmp.new_cipher->algorithm_mkey; | |
709 | unsigned long alg_a = s->s3->tmp.new_cipher->algorithm_auth; | |
89247375 MC |
710 | int using_ecc = ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) |
711 | && (s->session->tlsext_ecpointformatlist != NULL); | |
7da160b0 MC |
712 | const unsigned char *plist; |
713 | size_t plistlen; | |
714 | ||
715 | if (!using_ecc) | |
716 | return 1; | |
717 | ||
718 | tls1_get_formatlist(s, &plist, &plistlen); | |
7da160b0 MC |
719 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_ec_point_formats) |
720 | || !WPACKET_start_sub_packet_u16(pkt) | |
721 | || !WPACKET_sub_memcpy_u8(pkt, plist, plistlen) | |
722 | || !WPACKET_close(pkt)) { | |
7fe97c07 | 723 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_EC_PT_FORMATS, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
724 | return 0; |
725 | } | |
726 | ||
727 | return 1; | |
728 | } | |
729 | #endif | |
730 | ||
30aeba43 MC |
731 | int tls_construct_stoc_session_ticket(SSL *s, WPACKET *pkt, X509 *x, |
732 | size_t chain, int *al) | |
7da160b0 MC |
733 | { |
734 | if (!s->tlsext_ticket_expected || !tls_use_ticket(s)) { | |
735 | s->tlsext_ticket_expected = 0; | |
736 | return 1; | |
737 | } | |
738 | ||
739 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_session_ticket) | |
740 | || !WPACKET_put_bytes_u16(pkt, 0)) { | |
7fe97c07 | 741 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_SESSION_TICKET, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
742 | return 0; |
743 | } | |
744 | ||
745 | return 1; | |
746 | } | |
747 | ||
ab83e314 | 748 | #ifndef OPENSSL_NO_OCSP |
30aeba43 MC |
749 | int tls_construct_stoc_status_request(SSL *s, WPACKET *pkt, X509 *x, |
750 | size_t chain, int *al) | |
7da160b0 MC |
751 | { |
752 | if (!s->tlsext_status_expected) | |
753 | return 1; | |
754 | ||
755 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_status_request) | |
756 | || !WPACKET_put_bytes_u16(pkt, 0)) { | |
7fe97c07 | 757 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_STATUS_REQUEST, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
758 | return 0; |
759 | } | |
760 | ||
761 | return 1; | |
762 | } | |
ab83e314 | 763 | #endif |
7da160b0 | 764 | |
7da160b0 | 765 | #ifndef OPENSSL_NO_NEXTPROTONEG |
30aeba43 MC |
766 | int tls_construct_stoc_next_proto_neg(SSL *s, WPACKET *pkt, X509 *x, |
767 | size_t chain, int *al) | |
7da160b0 MC |
768 | { |
769 | const unsigned char *npa; | |
770 | unsigned int npalen; | |
771 | int ret; | |
772 | int next_proto_neg_seen = s->s3->next_proto_neg_seen; | |
773 | ||
774 | s->s3->next_proto_neg_seen = 0; | |
775 | if (!next_proto_neg_seen || s->ctx->next_protos_advertised_cb == NULL) | |
776 | return 1; | |
777 | ||
778 | ret = s->ctx->next_protos_advertised_cb(s, &npa, &npalen, | |
779 | s->ctx->next_protos_advertised_cb_arg); | |
780 | if (ret == SSL_TLSEXT_ERR_OK) { | |
781 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_next_proto_neg) | |
782 | || !WPACKET_sub_memcpy_u16(pkt, npa, npalen)) { | |
7fe97c07 | 783 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_NEXT_PROTO_NEG, |
7da160b0 MC |
784 | ERR_R_INTERNAL_ERROR); |
785 | return 0; | |
786 | } | |
787 | s->s3->next_proto_neg_seen = 1; | |
788 | } | |
789 | ||
790 | return 1; | |
791 | } | |
792 | #endif | |
793 | ||
30aeba43 MC |
794 | int tls_construct_stoc_alpn(SSL *s, WPACKET *pkt, X509 *x, size_t chain, |
795 | int *al) | |
7da160b0 MC |
796 | { |
797 | if (s->s3->alpn_selected == NULL) | |
798 | return 1; | |
799 | ||
800 | if (!WPACKET_put_bytes_u16(pkt, | |
801 | TLSEXT_TYPE_application_layer_protocol_negotiation) | |
802 | || !WPACKET_start_sub_packet_u16(pkt) | |
803 | || !WPACKET_start_sub_packet_u16(pkt) | |
804 | || !WPACKET_sub_memcpy_u8(pkt, s->s3->alpn_selected, | |
805 | s->s3->alpn_selected_len) | |
806 | || !WPACKET_close(pkt) | |
807 | || !WPACKET_close(pkt)) { | |
7fe97c07 | 808 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_ALPN, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
809 | return 0; |
810 | } | |
811 | ||
812 | return 1; | |
813 | } | |
814 | ||
815 | #ifndef OPENSSL_NO_SRTP | |
30aeba43 MC |
816 | int tls_construct_stoc_use_srtp(SSL *s, WPACKET *pkt, X509 *x, size_t chain, |
817 | int *al) | |
7da160b0 MC |
818 | { |
819 | if (s->srtp_profile == NULL) | |
820 | return 1; | |
a1448c26 | 821 | |
7da160b0 MC |
822 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_use_srtp) |
823 | || !WPACKET_start_sub_packet_u16(pkt) | |
824 | || !WPACKET_put_bytes_u16(pkt, 2) | |
825 | || !WPACKET_put_bytes_u16(pkt, s->srtp_profile->id) | |
826 | || !WPACKET_put_bytes_u8(pkt, 0) | |
827 | || !WPACKET_close(pkt)) { | |
7fe97c07 | 828 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_USE_SRTP, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
829 | return 0; |
830 | } | |
831 | ||
832 | return 1; | |
833 | } | |
834 | #endif | |
835 | ||
30aeba43 | 836 | int tls_construct_stoc_etm(SSL *s, WPACKET *pkt, X509 *x, size_t chain, int *al) |
7da160b0 MC |
837 | { |
838 | if ((s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC) == 0) | |
839 | return 1; | |
840 | ||
841 | /* | |
842 | * Don't use encrypt_then_mac if AEAD or RC4 might want to disable | |
843 | * for other cases too. | |
844 | */ | |
845 | if (s->s3->tmp.new_cipher->algorithm_mac == SSL_AEAD | |
846 | || s->s3->tmp.new_cipher->algorithm_enc == SSL_RC4 | |
847 | || s->s3->tmp.new_cipher->algorithm_enc == SSL_eGOST2814789CNT | |
848 | || s->s3->tmp.new_cipher->algorithm_enc == SSL_eGOST2814789CNT12) { | |
849 | s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC; | |
850 | return 1; | |
851 | } | |
852 | ||
853 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_encrypt_then_mac) | |
854 | || !WPACKET_put_bytes_u16(pkt, 0)) { | |
7fe97c07 | 855 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_ETM, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
856 | return 0; |
857 | } | |
858 | ||
859 | return 1; | |
860 | } | |
861 | ||
30aeba43 | 862 | int tls_construct_stoc_ems(SSL *s, WPACKET *pkt, X509 *x, size_t chain, int *al) |
7da160b0 MC |
863 | { |
864 | if ((s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS) == 0) | |
865 | return 1; | |
866 | ||
867 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_extended_master_secret) | |
868 | || !WPACKET_put_bytes_u16(pkt, 0)) { | |
7fe97c07 | 869 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_EMS, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
870 | return 0; |
871 | } | |
872 | ||
873 | return 1; | |
874 | } | |
875 | ||
30aeba43 MC |
876 | int tls_construct_stoc_key_share(SSL *s, WPACKET *pkt, X509 *x, size_t chain, |
877 | int *al) | |
7da160b0 | 878 | { |
3cf96e88 | 879 | #ifndef OPENSSL_NO_TLS1_3 |
7da160b0 MC |
880 | unsigned char *encodedPoint; |
881 | size_t encoded_pt_len = 0; | |
882 | EVP_PKEY *ckey = s->s3->peer_tmp, *skey = NULL; | |
883 | ||
884 | if (s->hit) | |
885 | return 1; | |
886 | ||
887 | if (ckey == NULL) { | |
7fe97c07 | 888 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_KEY_SHARE, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
889 | return 0; |
890 | } | |
891 | ||
892 | if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_key_share) | |
893 | || !WPACKET_start_sub_packet_u16(pkt) | |
894 | || !WPACKET_put_bytes_u16(pkt, s->s3->group_id)) { | |
7fe97c07 | 895 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_KEY_SHARE, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
896 | return 0; |
897 | } | |
898 | ||
899 | skey = ssl_generate_pkey(ckey); | |
900 | if (skey == NULL) { | |
7fe97c07 | 901 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_KEY_SHARE, ERR_R_MALLOC_FAILURE); |
7da160b0 MC |
902 | return 0; |
903 | } | |
904 | ||
905 | /* Generate encoding of server key */ | |
906 | encoded_pt_len = EVP_PKEY_get1_tls_encodedpoint(skey, &encodedPoint); | |
907 | if (encoded_pt_len == 0) { | |
7fe97c07 | 908 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_KEY_SHARE, ERR_R_EC_LIB); |
7da160b0 MC |
909 | EVP_PKEY_free(skey); |
910 | return 0; | |
911 | } | |
912 | ||
913 | if (!WPACKET_sub_memcpy_u16(pkt, encodedPoint, encoded_pt_len) | |
914 | || !WPACKET_close(pkt)) { | |
7fe97c07 | 915 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_KEY_SHARE, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
916 | EVP_PKEY_free(skey); |
917 | OPENSSL_free(encodedPoint); | |
918 | return 0; | |
919 | } | |
920 | OPENSSL_free(encodedPoint); | |
921 | ||
922 | /* This causes the crypto state to be updated based on the derived keys */ | |
923 | s->s3->tmp.pkey = skey; | |
924 | if (ssl_derive(s, skey, ckey, 1) == 0) { | |
7fe97c07 | 925 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_KEY_SHARE, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
926 | return 0; |
927 | } | |
3cf96e88 | 928 | #endif |
7da160b0 MC |
929 | |
930 | return 1; | |
931 | } | |
932 | ||
30aeba43 MC |
933 | int tls_construct_stoc_cryptopro_bug(SSL *s, WPACKET *pkt, X509 *x, |
934 | size_t chain, int *al) | |
7da160b0 MC |
935 | { |
936 | const unsigned char cryptopro_ext[36] = { | |
937 | 0xfd, 0xe8, /* 65000 */ | |
938 | 0x00, 0x20, /* 32 bytes length */ | |
939 | 0x30, 0x1e, 0x30, 0x08, 0x06, 0x06, 0x2a, 0x85, | |
940 | 0x03, 0x02, 0x02, 0x09, 0x30, 0x08, 0x06, 0x06, | |
941 | 0x2a, 0x85, 0x03, 0x02, 0x02, 0x16, 0x30, 0x08, | |
942 | 0x06, 0x06, 0x2a, 0x85, 0x03, 0x02, 0x02, 0x17 | |
943 | }; | |
944 | ||
945 | if (((s->s3->tmp.new_cipher->id & 0xFFFF) != 0x80 | |
946 | && (s->s3->tmp.new_cipher->id & 0xFFFF) != 0x81) | |
947 | || (SSL_get_options(s) & SSL_OP_CRYPTOPRO_TLSEXT_BUG) == 0) | |
948 | return 1; | |
949 | ||
950 | if (!WPACKET_memcpy(pkt, cryptopro_ext, sizeof(cryptopro_ext))) { | |
7fe97c07 | 951 | SSLerr(SSL_F_TLS_CONSTRUCT_STOC_CRYPTOPRO_BUG, ERR_R_INTERNAL_ERROR); |
7da160b0 MC |
952 | return 0; |
953 | } | |
954 | ||
955 | return 1; | |
956 | } |