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source: vbox/trunk/src/libs/openssl-3.0.1/ssl/statem/statem_local.h@ 94330

Last change on this file since 94330 was 94082, checked in by vboxsync, 3 years ago

libs/openssl-3.0.1: started applying and adjusting our OpenSSL changes to 3.0.1. bugref:10128
File size: 21.9 KB
Line 
1/*
2 * Copyright 2015-2021 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 * *
12 * The following definitions are PRIVATE to the state machine. They should *
13 * NOT be used outside of the state machine. *
14 * *
15 *****************************************************************************/
16
17/* Max message length definitions */
18
19/* The spec allows for a longer length than this, but we limit it */
20#define HELLO_VERIFY_REQUEST_MAX_LENGTH 258
21#define END_OF_EARLY_DATA_MAX_LENGTH 0
22#define HELLO_RETRY_REQUEST_MAX_LENGTH 20000
23#define ENCRYPTED_EXTENSIONS_MAX_LENGTH 20000
24#define SESSION_TICKET_MAX_LENGTH_TLS13 131338
25#define SESSION_TICKET_MAX_LENGTH_TLS12 65541
26#define SERVER_KEY_EXCH_MAX_LENGTH 102400
27#define SERVER_HELLO_DONE_MAX_LENGTH 0
28#define KEY_UPDATE_MAX_LENGTH 1
29#define CCS_MAX_LENGTH 1
30
31/* Max ServerHello size permitted by RFC 8446 */
32#define SERVER_HELLO_MAX_LENGTH 65607
33
34/* Max should actually be 36 but we are generous */
35#define FINISHED_MAX_LENGTH 64
36
37/* Dummy message type */
38#define SSL3_MT_DUMMY -1
39
40extern const unsigned char hrrrandom[];
41
42/* Message processing return codes */
43typedef enum {
44 /* Something bad happened */
45 MSG_PROCESS_ERROR,
46 /* We've finished reading - swap to writing */
47 MSG_PROCESS_FINISHED_READING,
48 /*
49 * We've completed the main processing of this message but there is some
50 * post processing to be done.
51 */
52 MSG_PROCESS_CONTINUE_PROCESSING,
53 /* We've finished this message - read the next message */
54 MSG_PROCESS_CONTINUE_READING
55} MSG_PROCESS_RETURN;
56
57typedef int (*confunc_f) (SSL *s, WPACKET *pkt);
58
59int ssl3_take_mac(SSL *s);
60int check_in_list(SSL *s, uint16_t group_id, const uint16_t *groups,
61 size_t num_groups, int checkallow);
62int create_synthetic_message_hash(SSL *s, const unsigned char *hashval,
63 size_t hashlen, const unsigned char *hrr,
64 size_t hrrlen);
65int parse_ca_names(SSL *s, PACKET *pkt);
66const STACK_OF(X509_NAME) *get_ca_names(SSL *s);
67int construct_ca_names(SSL *s, const STACK_OF(X509_NAME) *ca_sk, WPACKET *pkt);
68size_t construct_key_exchange_tbs(SSL *s, unsigned char **ptbs,
69 const void *param, size_t paramlen);
70
71/*
72 * TLS/DTLS client state machine functions
73 */
74int ossl_statem_client_read_transition(SSL *s, int mt);
75WRITE_TRAN ossl_statem_client_write_transition(SSL *s);
76WORK_STATE ossl_statem_client_pre_work(SSL *s, WORK_STATE wst);
77WORK_STATE ossl_statem_client_post_work(SSL *s, WORK_STATE wst);
78int ossl_statem_client_construct_message(SSL *s, WPACKET *pkt,
79 confunc_f *confunc, int *mt);
80size_t ossl_statem_client_max_message_size(SSL *s);
81MSG_PROCESS_RETURN ossl_statem_client_process_message(SSL *s, PACKET *pkt);
82WORK_STATE ossl_statem_client_post_process_message(SSL *s, WORK_STATE wst);
83
84/*
85 * TLS/DTLS server state machine functions
86 */
87int ossl_statem_server_read_transition(SSL *s, int mt);
88WRITE_TRAN ossl_statem_server_write_transition(SSL *s);
89WORK_STATE ossl_statem_server_pre_work(SSL *s, WORK_STATE wst);
90WORK_STATE ossl_statem_server_post_work(SSL *s, WORK_STATE wst);
91int ossl_statem_server_construct_message(SSL *s, WPACKET *pkt,
92 confunc_f *confunc,int *mt);
93size_t ossl_statem_server_max_message_size(SSL *s);
94MSG_PROCESS_RETURN ossl_statem_server_process_message(SSL *s, PACKET *pkt);
95WORK_STATE ossl_statem_server_post_process_message(SSL *s, WORK_STATE wst);
96
97/* Functions for getting new message data */
98__owur int tls_get_message_header(SSL *s, int *mt);
99__owur int tls_get_message_body(SSL *s, size_t *len);
100__owur int dtls_get_message(SSL *s, int *mt);
101__owur int dtls_get_message_body(SSL *s, size_t *len);
102
103/* Message construction and processing functions */
104__owur int tls_process_initial_server_flight(SSL *s);
105__owur MSG_PROCESS_RETURN tls_process_change_cipher_spec(SSL *s, PACKET *pkt);
106__owur MSG_PROCESS_RETURN tls_process_finished(SSL *s, PACKET *pkt);
107__owur int tls_construct_change_cipher_spec(SSL *s, WPACKET *pkt);
108__owur int dtls_construct_change_cipher_spec(SSL *s, WPACKET *pkt);
109
110__owur int tls_construct_finished(SSL *s, WPACKET *pkt);
111__owur int tls_construct_key_update(SSL *s, WPACKET *pkt);
112__owur MSG_PROCESS_RETURN tls_process_key_update(SSL *s, PACKET *pkt);
113__owur WORK_STATE tls_finish_handshake(SSL *s, WORK_STATE wst, int clearbufs,
114 int stop);
115__owur WORK_STATE dtls_wait_for_dry(SSL *s);
116
117/* some client-only functions */
118__owur int tls_construct_client_hello(SSL *s, WPACKET *pkt);
119__owur MSG_PROCESS_RETURN tls_process_server_hello(SSL *s, PACKET *pkt);
120__owur MSG_PROCESS_RETURN tls_process_certificate_request(SSL *s, PACKET *pkt);
121__owur MSG_PROCESS_RETURN tls_process_new_session_ticket(SSL *s, PACKET *pkt);
122__owur int tls_process_cert_status_body(SSL *s, PACKET *pkt);
123__owur MSG_PROCESS_RETURN tls_process_cert_status(SSL *s, PACKET *pkt);
124__owur MSG_PROCESS_RETURN tls_process_server_done(SSL *s, PACKET *pkt);
125__owur int tls_construct_cert_verify(SSL *s, WPACKET *pkt);
126__owur WORK_STATE tls_prepare_client_certificate(SSL *s, WORK_STATE wst);
127__owur int tls_construct_client_certificate(SSL *s, WPACKET *pkt);
128__owur int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
129__owur int tls_construct_client_key_exchange(SSL *s, WPACKET *pkt);
130__owur int tls_client_key_exchange_post_work(SSL *s);
131__owur int tls_construct_cert_status_body(SSL *s, WPACKET *pkt);
132__owur int tls_construct_cert_status(SSL *s, WPACKET *pkt);
133__owur MSG_PROCESS_RETURN tls_process_key_exchange(SSL *s, PACKET *pkt);
134__owur MSG_PROCESS_RETURN tls_process_server_certificate(SSL *s, PACKET *pkt);
135__owur WORK_STATE tls_post_process_server_certificate(SSL *s, WORK_STATE wst);
136__owur int ssl3_check_cert_and_algorithm(SSL *s);
137#ifndef OPENSSL_NO_NEXTPROTONEG
138__owur int tls_construct_next_proto(SSL *s, WPACKET *pkt);
139#endif
140__owur MSG_PROCESS_RETURN tls_process_hello_req(SSL *s, PACKET *pkt);
141__owur MSG_PROCESS_RETURN dtls_process_hello_verify(SSL *s, PACKET *pkt);
142__owur int tls_construct_end_of_early_data(SSL *s, WPACKET *pkt);
143
144/* some server-only functions */
145__owur MSG_PROCESS_RETURN tls_process_client_hello(SSL *s, PACKET *pkt);
146__owur WORK_STATE tls_post_process_client_hello(SSL *s, WORK_STATE wst);
147__owur int tls_construct_server_hello(SSL *s, WPACKET *pkt);
148__owur int dtls_construct_hello_verify_request(SSL *s, WPACKET *pkt);
149__owur int tls_construct_server_certificate(SSL *s, WPACKET *pkt);
150__owur int tls_construct_server_key_exchange(SSL *s, WPACKET *pkt);
151__owur int tls_construct_certificate_request(SSL *s, WPACKET *pkt);
152__owur int tls_construct_server_done(SSL *s, WPACKET *pkt);
153__owur MSG_PROCESS_RETURN tls_process_client_certificate(SSL *s, PACKET *pkt);
154__owur MSG_PROCESS_RETURN tls_process_client_key_exchange(SSL *s, PACKET *pkt);
155__owur WORK_STATE tls_post_process_client_key_exchange(SSL *s, WORK_STATE wst);
156__owur MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, PACKET *pkt);
157#ifndef OPENSSL_NO_NEXTPROTONEG
158__owur MSG_PROCESS_RETURN tls_process_next_proto(SSL *s, PACKET *pkt);
159#endif
160__owur int tls_construct_new_session_ticket(SSL *s, WPACKET *pkt);
161MSG_PROCESS_RETURN tls_process_end_of_early_data(SSL *s, PACKET *pkt);
162
163#ifndef OPENSSL_NO_GOST
164/* These functions are used in GOST18 CKE, both for client and server */
165int ossl_gost18_cke_cipher_nid(const SSL *s);
166int ossl_gost_ukm(const SSL *s, unsigned char *dgst_buf);
167#endif
168
169/* Extension processing */
170
171typedef enum ext_return_en {
172 EXT_RETURN_FAIL,
173 EXT_RETURN_SENT,
174 EXT_RETURN_NOT_SENT
175} EXT_RETURN;
176
177__owur int tls_validate_all_contexts(SSL *s, unsigned int thisctx,
178 RAW_EXTENSION *exts);
179__owur int extension_is_relevant(SSL *s, unsigned int extctx,
180 unsigned int thisctx);
181__owur int tls_collect_extensions(SSL *s, PACKET *packet, unsigned int context,
182 RAW_EXTENSION **res, size_t *len, int init);
183__owur int tls_parse_extension(SSL *s, TLSEXT_INDEX idx, int context,
184 RAW_EXTENSION *exts, X509 *x, size_t chainidx);
185__owur int tls_parse_all_extensions(SSL *s, int context, RAW_EXTENSION *exts,
186 X509 *x, size_t chainidx, int fin);
187__owur int should_add_extension(SSL *s, unsigned int extctx,
188 unsigned int thisctx, int max_version);
189__owur int tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,
190 X509 *x, size_t chainidx);
191
192__owur int tls_psk_do_binder(SSL *s, const EVP_MD *md,
193 const unsigned char *msgstart,
194 size_t binderoffset, const unsigned char *binderin,
195 unsigned char *binderout,
196 SSL_SESSION *sess, int sign, int external);
197
198/* Server Extension processing */
199int tls_parse_ctos_renegotiate(SSL *s, PACKET *pkt, unsigned int context,
200 X509 *x, size_t chainidx);
201int tls_parse_ctos_server_name(SSL *s, PACKET *pkt, unsigned int context,
202 X509 *x, size_t chainidx);
203int tls_parse_ctos_maxfragmentlen(SSL *s, PACKET *pkt, unsigned int context,
204 X509 *x, size_t chainidx);
205#ifndef OPENSSL_NO_SRP
206int tls_parse_ctos_srp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
207 size_t chainidx);
208#endif
209int tls_parse_ctos_early_data(SSL *s, PACKET *pkt, unsigned int context,
210 X509 *x, size_t chainidx);
211int tls_parse_ctos_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
212 X509 *x, size_t chainidx);
213int tls_parse_ctos_supported_groups(SSL *s, PACKET *pkt, unsigned int context,
214 X509 *x, size_t chainidxl);
215int tls_parse_ctos_session_ticket(SSL *s, PACKET *pkt, unsigned int context,
216 X509 *x, size_t chainidx);
217int tls_parse_ctos_sig_algs_cert(SSL *s, PACKET *pkt, unsigned int context,
218 X509 *x, size_t chainidx);
219int tls_parse_ctos_sig_algs(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
220 size_t chainidx);
221#ifndef OPENSSL_NO_OCSP
222int tls_parse_ctos_status_request(SSL *s, PACKET *pkt, unsigned int context,
223 X509 *x, size_t chainidx);
224#endif
225#ifndef OPENSSL_NO_NEXTPROTONEG
226int tls_parse_ctos_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
227 size_t chainidx);
228#endif
229int tls_parse_ctos_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
230 size_t chainidx);
231#ifndef OPENSSL_NO_SRTP
232int tls_parse_ctos_use_srtp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
233 size_t chainidx);
234#endif
235int tls_parse_ctos_etm(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
236 size_t chainidx);
237int tls_parse_ctos_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
238 size_t chainidx);
239int tls_parse_ctos_cookie(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
240 size_t chainidx);
241int tls_parse_ctos_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
242 size_t chainidx);
243int tls_parse_ctos_psk_kex_modes(SSL *s, PACKET *pkt, unsigned int context,
244 X509 *x, size_t chainidx);
245int tls_parse_ctos_psk(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
246 size_t chainidx);
247int tls_parse_ctos_post_handshake_auth(SSL *, PACKET *pkt, unsigned int context,
248 X509 *x, size_t chainidx);
249
250EXT_RETURN tls_construct_stoc_renegotiate(SSL *s, WPACKET *pkt,
251 unsigned int context, X509 *x,
252 size_t chainidx);
253EXT_RETURN tls_construct_stoc_server_name(SSL *s, WPACKET *pkt,
254 unsigned int context, X509 *x,
255 size_t chainidx);
256EXT_RETURN tls_construct_stoc_early_data(SSL *s, WPACKET *pkt,
257 unsigned int context, X509 *x,
258 size_t chainidx);
259EXT_RETURN tls_construct_stoc_maxfragmentlen(SSL *s, WPACKET *pkt,
260 unsigned int context, X509 *x,
261 size_t chainidx);
262EXT_RETURN tls_construct_stoc_ec_pt_formats(SSL *s, WPACKET *pkt,
263 unsigned int context, X509 *x,
264 size_t chainidx);
265EXT_RETURN tls_construct_stoc_supported_groups(SSL *s, WPACKET *pkt,
266 unsigned int context, X509 *x,
267 size_t chainidx);
268EXT_RETURN tls_construct_stoc_session_ticket(SSL *s, WPACKET *pkt,
269 unsigned int context, X509 *x,
270 size_t chainidx);
271#ifndef OPENSSL_NO_OCSP
272EXT_RETURN tls_construct_stoc_status_request(SSL *s, WPACKET *pkt,
273 unsigned int context, X509 *x,
274 size_t chainidx);
275#endif
276#ifndef OPENSSL_NO_NEXTPROTONEG
277EXT_RETURN tls_construct_stoc_next_proto_neg(SSL *s, WPACKET *pkt,
278 unsigned int context, X509 *x,
279 size_t chainidx);
280#endif
281EXT_RETURN tls_construct_stoc_alpn(SSL *s, WPACKET *pkt, unsigned int context,
282 X509 *x, size_t chainidx);
283#ifndef OPENSSL_NO_SRTP
284EXT_RETURN tls_construct_stoc_use_srtp(SSL *s, WPACKET *pkt, unsigned int context,
285 X509 *x, size_t chainidx);
286#endif
287EXT_RETURN tls_construct_stoc_etm(SSL *s, WPACKET *pkt, unsigned int context,
288 X509 *x, size_t chainidx);
289EXT_RETURN tls_construct_stoc_ems(SSL *s, WPACKET *pkt, unsigned int context,
290 X509 *x, size_t chainidx);
291EXT_RETURN tls_construct_stoc_supported_versions(SSL *s, WPACKET *pkt,
292 unsigned int context, X509 *x,
293 size_t chainidx);
294EXT_RETURN tls_construct_stoc_key_share(SSL *s, WPACKET *pkt,
295 unsigned int context, X509 *x,
296 size_t chainidx);
297EXT_RETURN tls_construct_stoc_cookie(SSL *s, WPACKET *pkt, unsigned int context,
298 X509 *x, size_t chainidx);
299/*
300 * Not in public headers as this is not an official extension. Only used when
301 * SSL_OP_CRYPTOPRO_TLSEXT_BUG is set.
302 */
303#define TLSEXT_TYPE_cryptopro_bug 0xfde8
304EXT_RETURN tls_construct_stoc_cryptopro_bug(SSL *s, WPACKET *pkt,
305 unsigned int context, X509 *x,
306 size_t chainidx);
307EXT_RETURN tls_construct_stoc_psk(SSL *s, WPACKET *pkt, unsigned int context,
308 X509 *x, size_t chainidx);
309
310/* Client Extension processing */
311EXT_RETURN tls_construct_ctos_renegotiate(SSL *s, WPACKET *pkt, unsigned int context,
312 X509 *x, size_t chainidx);
313EXT_RETURN tls_construct_ctos_server_name(SSL *s, WPACKET *pkt, unsigned int context,
314 X509 *x, size_t chainidx);
315EXT_RETURN tls_construct_ctos_maxfragmentlen(SSL *s, WPACKET *pkt, unsigned int context,
316 X509 *x, size_t chainidx);
317#ifndef OPENSSL_NO_SRP
318EXT_RETURN tls_construct_ctos_srp(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
319 size_t chainidx);
320#endif
321EXT_RETURN tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt,
322 unsigned int context, X509 *x,
323 size_t chainidx);
324EXT_RETURN tls_construct_ctos_supported_groups(SSL *s, WPACKET *pkt,
325 unsigned int context, X509 *x,
326 size_t chainidx);
327
328EXT_RETURN tls_construct_ctos_early_data(SSL *s, WPACKET *pkt,
329 unsigned int context, X509 *x,
330 size_t chainidx);
331EXT_RETURN tls_construct_ctos_session_ticket(SSL *s, WPACKET *pkt,
332 unsigned int context, X509 *x,
333 size_t chainidx);
334EXT_RETURN tls_construct_ctos_sig_algs(SSL *s, WPACKET *pkt,
335 unsigned int context, X509 *x,
336 size_t chainidx);
337#ifndef OPENSSL_NO_OCSP
338EXT_RETURN tls_construct_ctos_status_request(SSL *s, WPACKET *pkt,
339 unsigned int context, X509 *x,
340 size_t chainidx);
341#endif
342#ifndef OPENSSL_NO_NEXTPROTONEG
343EXT_RETURN tls_construct_ctos_npn(SSL *s, WPACKET *pkt, unsigned int context,
344 X509 *x, size_t chainidx);
345#endif
346EXT_RETURN tls_construct_ctos_alpn(SSL *s, WPACKET *pkt, unsigned int context,
347 X509 *x, size_t chainidx);
348#ifndef OPENSSL_NO_SRTP
349EXT_RETURN tls_construct_ctos_use_srtp(SSL *s, WPACKET *pkt, unsigned int context,
350 X509 *x, size_t chainidx);
351#endif
352EXT_RETURN tls_construct_ctos_etm(SSL *s, WPACKET *pkt, unsigned int context,
353 X509 *x, size_t chainidx);
354#ifndef OPENSSL_NO_CT
355EXT_RETURN tls_construct_ctos_sct(SSL *s, WPACKET *pkt, unsigned int context,
356 X509 *x, size_t chainidx);
357#endif
358EXT_RETURN tls_construct_ctos_ems(SSL *s, WPACKET *pkt, unsigned int context,
359 X509 *x, size_t chainidx);
360EXT_RETURN tls_construct_ctos_supported_versions(SSL *s, WPACKET *pkt,
361 unsigned int context, X509 *x,
362 size_t chainidx);
363EXT_RETURN tls_construct_ctos_key_share(SSL *s, WPACKET *pkt,
364 unsigned int context, X509 *x,
365 size_t chainidx);
366EXT_RETURN tls_construct_ctos_psk_kex_modes(SSL *s, WPACKET *pkt,
367 unsigned int context, X509 *x,
368 size_t chainidx);
369EXT_RETURN tls_construct_ctos_cookie(SSL *s, WPACKET *pkt, unsigned int context,
370 X509 *x, size_t chainidx);
371EXT_RETURN tls_construct_ctos_padding(SSL *s, WPACKET *pkt,
372 unsigned int context, X509 *x,
373 size_t chainidx);
374EXT_RETURN tls_construct_ctos_psk(SSL *s, WPACKET *pkt, unsigned int context,
375 X509 *x, size_t chainidx);
376EXT_RETURN tls_construct_ctos_post_handshake_auth(SSL *s, WPACKET *pkt, unsigned int context,
377 X509 *x, size_t chainidx);
378
379int tls_parse_stoc_renegotiate(SSL *s, PACKET *pkt, unsigned int context,
380 X509 *x, size_t chainidx);
381int tls_parse_stoc_server_name(SSL *s, PACKET *pkt, unsigned int context,
382 X509 *x, size_t chainidx);
383int tls_parse_stoc_early_data(SSL *s, PACKET *pkt, unsigned int context,
384 X509 *x, size_t chainidx);
385int tls_parse_stoc_maxfragmentlen(SSL *s, PACKET *pkt, unsigned int context,
386 X509 *x, size_t chainidx);
387int tls_parse_stoc_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
388 X509 *x, size_t chainidx);
389int tls_parse_stoc_session_ticket(SSL *s, PACKET *pkt, unsigned int context,
390 X509 *x, size_t chainidx);
391#ifndef OPENSSL_NO_OCSP
392int tls_parse_stoc_status_request(SSL *s, PACKET *pkt, unsigned int context,
393 X509 *x, size_t chainidx);
394#endif
395#ifndef OPENSSL_NO_CT
396int tls_parse_stoc_sct(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
397 size_t chainidx);
398#endif
399#ifndef OPENSSL_NO_NEXTPROTONEG
400int tls_parse_stoc_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
401 size_t chainidx);
402#endif
403int tls_parse_stoc_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
404 size_t chainidx);
405#ifndef OPENSSL_NO_SRTP
406int tls_parse_stoc_use_srtp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
407 size_t chainidx);
408#endif
409int tls_parse_stoc_etm(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
410 size_t chainidx);
411int tls_parse_stoc_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
412 size_t chainidx);
413int tls_parse_stoc_supported_versions(SSL *s, PACKET *pkt, unsigned int context,
414 X509 *x, size_t chainidx);
415int tls_parse_stoc_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
416 size_t chainidx);
417int tls_parse_stoc_cookie(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
418 size_t chainidx);
419int tls_parse_stoc_psk(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
420 size_t chainidx);
421
422int tls_handle_alpn(SSL *s);
423
424int tls13_save_handshake_digest_for_pha(SSL *s);
425int tls13_restore_handshake_digest_for_pha(SSL *s);
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