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846e33c7 1/*
fecb3aae 2 * Copyright 2015-2022 The OpenSSL Project Authors. All Rights Reserved.
61ae935a 3 *
2c18d164 4 * Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7
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
61ae935a
MC		 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
ef6c191b 21#define END_OF_EARLY_DATA_MAX_LENGTH 0
3847d426 22#define HELLO_RETRY_REQUEST_MAX_LENGTH 20000
e46f2334 23#define ENCRYPTED_EXTENSIONS_MAX_LENGTH 20000
e54f0c9b
MC		 24#define SESSION_TICKET_MAX_LENGTH_TLS13 131338
25#define SESSION_TICKET_MAX_LENGTH_TLS12 65541
61ae935a
MC		 26#define SERVER_KEY_EXCH_MAX_LENGTH 102400
27#define SERVER_HELLO_DONE_MAX_LENGTH 0
e1c3de44 28#define KEY_UPDATE_MAX_LENGTH 1
61ae935a 29#define CCS_MAX_LENGTH 1
3aff5b4b
MB		 30
31/* Max ServerHello size permitted by RFC 8446 */
32#define SERVER_HELLO_MAX_LENGTH 65607
33
61ae935a
MC		 34/* Max should actually be 36 but we are generous */
35#define FINISHED_MAX_LENGTH 64
36
f7e393be
MC		 37/* Dummy message type */
38#define SSL3_MT_DUMMY -1
39
597c51bc
MC		 40extern const unsigned char hrrrandom[];
41
61ae935a 42/* Message processing return codes */
be3583fa 43typedef enum {
61ae935a
MC		 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
be3583fa 55} MSG_PROCESS_RETURN;
61ae935a 56
a15c953f
MC		 57typedef int (*confunc_f) (SSL *s, WPACKET *pkt);
58
5d671101 59int ssl3_take_mac(SSL *s);
9e84a42d 60int check_in_list(SSL *s, uint16_t group_id, const uint16_t *groups,
aff9929b 61 size_t num_groups, int checkallow);
43054d3d
MC		 62int create_synthetic_message_hash(SSL *s, const unsigned char *hashval,
63 size_t hashlen, const unsigned char *hrr,
64 size_t hrrlen);
f63a17d6 65int parse_ca_names(SSL *s, PACKET *pkt);
98732979
MC		 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);
f63a17d6 68size_t construct_key_exchange_tbs(SSL *s, unsigned char **ptbs,
72ceb6a6 69 const void *param, size_t paramlen);
5d6cca05 70
61ae935a
MC		 71/*
72 * TLS/DTLS client state machine functions
73 */
8481f583
MC		 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);
e1c12271 78int ossl_statem_client_construct_message(SSL *s,
a15c953f 79 confunc_f *confunc, int *mt);
eda75751 80size_t ossl_statem_client_max_message_size(SSL *s);
8481f583
MC		 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);
61ae935a
MC		 83
84/*
85 * TLS/DTLS server state machine functions
86 */
8481f583
MC		 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);
e1c12271 91int ossl_statem_server_construct_message(SSL *s,
a15c953f 92 confunc_f *confunc,int *mt);
eda75751 93size_t ossl_statem_server_max_message_size(SSL *s);
8481f583
MC		 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);
61ae935a
MC		 96
97/* Functions for getting new message data */
98__owur int tls_get_message_header(SSL *s, int *mt);
eda75751 99__owur int tls_get_message_body(SSL *s, size_t *len);
f42e68dc
MC		 100__owur int dtls_get_message(SSL *s, int *mt);
101__owur int dtls_get_message_body(SSL *s, size_t *len);
61ae935a
MC		 102
103/* Message construction and processing functions */
f63a17d6 104__owur int tls_process_initial_server_flight(SSL *s);
be3583fa
MC		 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);
7cea05dc
MC		 107__owur int tls_construct_change_cipher_spec(SSL *s, WPACKET *pkt);
108__owur int dtls_construct_change_cipher_spec(SSL *s, WPACKET *pkt);
61ae935a 109
229185e6 110__owur int tls_construct_finished(SSL *s, WPACKET *pkt);
44c04a2e 111__owur int tls_construct_key_update(SSL *s, WPACKET *pkt);
e1c3de44 112__owur MSG_PROCESS_RETURN tls_process_key_update(SSL *s, PACKET *pkt);
2a8db717
MC		 113__owur WORK_STATE tls_finish_handshake(SSL *s, WORK_STATE wst, int clearbufs,
114 int stop);
be3583fa 115__owur WORK_STATE dtls_wait_for_dry(SSL *s);
61ae935a
MC		 116
117/* some client-only functions */
7cea05dc 118__owur int tls_construct_client_hello(SSL *s, WPACKET *pkt);
be3583fa
MC		 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);
f63a17d6 122__owur int tls_process_cert_status_body(SSL *s, PACKET *pkt);
be3583fa
MC		 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);
d8bc1399 125__owur int tls_construct_cert_verify(SSL *s, WPACKET *pkt);
be3583fa 126__owur WORK_STATE tls_prepare_client_certificate(SSL *s, WORK_STATE wst);
7cea05dc 127__owur int tls_construct_client_certificate(SSL *s, WPACKET *pkt);
61ae935a 128__owur int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
7cea05dc 129__owur int tls_construct_client_key_exchange(SSL *s, WPACKET *pkt);
61ae935a 130__owur int tls_client_key_exchange_post_work(SSL *s);
f63e4288 131__owur int tls_construct_cert_status_body(SSL *s, WPACKET *pkt);
7cea05dc 132__owur int tls_construct_cert_status(SSL *s, WPACKET *pkt);
a230b26e 133__owur MSG_PROCESS_RETURN tls_process_key_exchange(SSL *s, PACKET *pkt);
be3583fa 134__owur MSG_PROCESS_RETURN tls_process_server_certificate(SSL *s, PACKET *pkt);
0c3eb279 135__owur WORK_STATE tls_post_process_server_certificate(SSL *s, WORK_STATE wst);
61ae935a 136__owur int ssl3_check_cert_and_algorithm(SSL *s);
a230b26e 137#ifndef OPENSSL_NO_NEXTPROTONEG
7cea05dc 138__owur int tls_construct_next_proto(SSL *s, WPACKET *pkt);
a230b26e 139#endif
c7f47786 140__owur MSG_PROCESS_RETURN tls_process_hello_req(SSL *s, PACKET *pkt);
be3583fa 141__owur MSG_PROCESS_RETURN dtls_process_hello_verify(SSL *s, PACKET *pkt);
ef6c191b 142__owur int tls_construct_end_of_early_data(SSL *s, WPACKET *pkt);
61ae935a
MC		 143
144/* some server-only functions */
be3583fa
MC		 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);
7cea05dc 147__owur int tls_construct_server_hello(SSL *s, WPACKET *pkt);
7cea05dc
MC		 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);
be3583fa
MC		 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);
a230b26e 157#ifndef OPENSSL_NO_NEXTPROTONEG
be3583fa 158__owur MSG_PROCESS_RETURN tls_process_next_proto(SSL *s, PACKET *pkt);
a230b26e 159#endif
7cea05dc 160__owur int tls_construct_new_session_ticket(SSL *s, WPACKET *pkt);
ef6c191b 161MSG_PROCESS_RETURN tls_process_end_of_early_data(SSL *s, PACKET *pkt);
6b473aca 162
5a5530a2
DB		 163#ifndef OPENSSL_NO_GOST
164/* These functions are used in GOST18 CKE, both for client and server */
6dd4b77a
SL		 165int ossl_gost18_cke_cipher_nid(const SSL *s);
166int ossl_gost_ukm(const SSL *s, unsigned char *dgst_buf);
5a5530a2 167#endif
70af3d8e
MC		 168
169/* Extension processing */
170
355a0d10 171typedef enum ext_return_en {
b186a592
MC		 172 EXT_RETURN_FAIL,
173 EXT_RETURN_SENT,
174 EXT_RETURN_NOT_SENT
175} EXT_RETURN;
176
88050dd1
MC		 177__owur int tls_validate_all_contexts(SSL *s, unsigned int thisctx,
178 RAW_EXTENSION *exts);
43ae5eed
MC		 179__owur int extension_is_relevant(SSL *s, unsigned int extctx,
180 unsigned int thisctx);
70af3d8e 181__owur int tls_collect_extensions(SSL *s, PACKET *packet, unsigned int context,
f63a17d6 182 RAW_EXTENSION **res, size_t *len, int init);
7d152a3c 183__owur int tls_parse_extension(SSL *s, TLSEXT_INDEX idx, int context,
f63a17d6 184 RAW_EXTENSION *exts, X509 *x, size_t chainidx);
4b299b8e 185__owur int tls_parse_all_extensions(SSL *s, int context, RAW_EXTENSION *exts,
f63a17d6 186 X509 *x, size_t chainidx, int fin);
43ae5eed
MC		 187__owur int should_add_extension(SSL *s, unsigned int extctx,
188 unsigned int thisctx, int max_version);
4b299b8e 189__owur int tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 190 X509 *x, size_t chainidx);
25670f3e 191
1053a6e2
MC		 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,
3a7c56b2 196 SSL_SESSION *sess, int sign, int external);
1053a6e2 197
25670f3e 198/* Server Extension processing */
61138358 199int tls_parse_ctos_renegotiate(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 200 X509 *x, size_t chainidx);
61138358 201int tls_parse_ctos_server_name(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 202 X509 *x, size_t chainidx);
cf72c757 203int tls_parse_ctos_maxfragmentlen(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 204 X509 *x, size_t chainidx);
25670f3e 205#ifndef OPENSSL_NO_SRP
61138358 206int tls_parse_ctos_srp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 207 size_t chainidx);
25670f3e 208#endif
0a87d0ac 209int tls_parse_ctos_early_data(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 210 X509 *x, size_t chainidx);
61138358 211int tls_parse_ctos_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 212 X509 *x, size_t chainidx);
61138358 213int tls_parse_ctos_supported_groups(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 214 X509 *x, size_t chainidxl);
61138358 215int tls_parse_ctos_session_ticket(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 216 X509 *x, size_t chainidx);
c589c34e
BK		 217int tls_parse_ctos_sig_algs_cert(SSL *s, PACKET *pkt, unsigned int context,
218 X509 *x, size_t chainidx);
61138358 219int tls_parse_ctos_sig_algs(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 220 size_t chainidx);
ab83e314 221#ifndef OPENSSL_NO_OCSP
61138358 222int tls_parse_ctos_status_request(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 223 X509 *x, size_t chainidx);
ab83e314 224#endif
25670f3e 225#ifndef OPENSSL_NO_NEXTPROTONEG
61138358 226int tls_parse_ctos_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 227 size_t chainidx);
25670f3e 228#endif
61138358 229int tls_parse_ctos_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 230 size_t chainidx);
25670f3e 231#ifndef OPENSSL_NO_SRTP
61138358 232int tls_parse_ctos_use_srtp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 233 size_t chainidx);
25670f3e 234#endif
61138358 235int tls_parse_ctos_etm(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 236 size_t chainidx);
61138358 237int tls_parse_ctos_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 238 size_t chainidx);
43054d3d
MC		 239int tls_parse_ctos_cookie(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
240 size_t chainidx);
61138358 241int tls_parse_ctos_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 242 size_t chainidx);
61138358 243int tls_parse_ctos_psk_kex_modes(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 244 X509 *x, size_t chainidx);
61138358 245int tls_parse_ctos_psk(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 246 size_t chainidx);
9d75dce3
TS		 247int tls_parse_ctos_post_handshake_auth(SSL *, PACKET *pkt, unsigned int context,
248 X509 *x, size_t chainidx);
7da160b0 249
b186a592
MC		 250EXT_RETURN tls_construct_stoc_renegotiate(SSL *s, WPACKET *pkt,
251 unsigned int context, X509 *x,
f63a17d6 252 size_t chainidx);
b186a592
MC		 253EXT_RETURN tls_construct_stoc_server_name(SSL *s, WPACKET *pkt,
254 unsigned int context, X509 *x,
f63a17d6 255 size_t chainidx);
b186a592
MC		 256EXT_RETURN tls_construct_stoc_early_data(SSL *s, WPACKET *pkt,
257 unsigned int context, X509 *x,
f63a17d6 258 size_t chainidx);
cf72c757
F		 259EXT_RETURN tls_construct_stoc_maxfragmentlen(SSL *s, WPACKET *pkt,
260 unsigned int context, X509 *x,
f63a17d6 261 size_t chainidx);
b186a592
MC		 262EXT_RETURN tls_construct_stoc_ec_pt_formats(SSL *s, WPACKET *pkt,
263 unsigned int context, X509 *x,
f63a17d6 264 size_t chainidx);
b186a592
MC		 265EXT_RETURN tls_construct_stoc_supported_groups(SSL *s, WPACKET *pkt,
266 unsigned int context, X509 *x,
f63a17d6 267 size_t chainidx);
b186a592
MC		 268EXT_RETURN tls_construct_stoc_session_ticket(SSL *s, WPACKET *pkt,
269 unsigned int context, X509 *x,
f63a17d6 270 size_t chainidx);
ab83e314 271#ifndef OPENSSL_NO_OCSP
b186a592
MC		 272EXT_RETURN tls_construct_stoc_status_request(SSL *s, WPACKET *pkt,
273 unsigned int context, X509 *x,
f63a17d6 274 size_t chainidx);
ab83e314
MC		 275#endif
276#ifndef OPENSSL_NO_NEXTPROTONEG
b186a592
MC		 277EXT_RETURN tls_construct_stoc_next_proto_neg(SSL *s, WPACKET *pkt,
278 unsigned int context, X509 *x,
f63a17d6 279 size_t chainidx);
ab83e314 280#endif
b186a592 281EXT_RETURN tls_construct_stoc_alpn(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 282 X509 *x, size_t chainidx);
ab83e314 283#ifndef OPENSSL_NO_SRTP
b186a592 284EXT_RETURN tls_construct_stoc_use_srtp(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 285 X509 *x, size_t chainidx);
ab83e314 286#endif
b186a592 287EXT_RETURN tls_construct_stoc_etm(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 288 X509 *x, size_t chainidx);
b186a592 289EXT_RETURN tls_construct_stoc_ems(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 290 X509 *x, size_t chainidx);
88050dd1
MC		 291EXT_RETURN tls_construct_stoc_supported_versions(SSL *s, WPACKET *pkt,
292 unsigned int context, X509 *x,
293 size_t chainidx);
b186a592
MC		 294EXT_RETURN tls_construct_stoc_key_share(SSL *s, WPACKET *pkt,
295 unsigned int context, X509 *x,
f63a17d6 296 size_t chainidx);
43054d3d
MC		 297EXT_RETURN tls_construct_stoc_cookie(SSL *s, WPACKET *pkt, unsigned int context,
298 X509 *x, size_t chainidx);
7da160b0
MC		 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
b186a592
MC		 304EXT_RETURN tls_construct_stoc_cryptopro_bug(SSL *s, WPACKET *pkt,
305 unsigned int context, X509 *x,
f63a17d6 306 size_t chainidx);
b186a592 307EXT_RETURN tls_construct_stoc_psk(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 308 X509 *x, size_t chainidx);
6dd083fd
MC		 309
310/* Client Extension processing */
b186a592 311EXT_RETURN tls_construct_ctos_renegotiate(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 312 X509 *x, size_t chainidx);
b186a592 313EXT_RETURN tls_construct_ctos_server_name(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 314 X509 *x, size_t chainidx);
cf72c757 315EXT_RETURN tls_construct_ctos_maxfragmentlen(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 316 X509 *x, size_t chainidx);
ab83e314 317#ifndef OPENSSL_NO_SRP
b186a592 318EXT_RETURN tls_construct_ctos_srp(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
f63a17d6 319 size_t chainidx);
ab83e314 320#endif
b186a592
MC		 321EXT_RETURN tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt,
322 unsigned int context, X509 *x,
f63a17d6 323 size_t chainidx);
b186a592
MC		 324EXT_RETURN tls_construct_ctos_supported_groups(SSL *s, WPACKET *pkt,
325 unsigned int context, X509 *x,
f63a17d6 326 size_t chainidx);
dbc6268f 327
b186a592
MC		 328EXT_RETURN tls_construct_ctos_early_data(SSL *s, WPACKET *pkt,
329 unsigned int context, X509 *x,
f63a17d6 330 size_t chainidx);
b186a592
MC		 331EXT_RETURN tls_construct_ctos_session_ticket(SSL *s, WPACKET *pkt,
332 unsigned int context, X509 *x,
f63a17d6 333 size_t chainidx);
b186a592
MC		 334EXT_RETURN tls_construct_ctos_sig_algs(SSL *s, WPACKET *pkt,
335 unsigned int context, X509 *x,
f63a17d6 336 size_t chainidx);
ab83e314 337#ifndef OPENSSL_NO_OCSP
b186a592
MC		 338EXT_RETURN tls_construct_ctos_status_request(SSL *s, WPACKET *pkt,
339 unsigned int context, X509 *x,
f63a17d6 340 size_t chainidx);
ab83e314
MC		 341#endif
342#ifndef OPENSSL_NO_NEXTPROTONEG
b186a592 343EXT_RETURN tls_construct_ctos_npn(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 344 X509 *x, size_t chainidx);
ab83e314 345#endif
b186a592 346EXT_RETURN tls_construct_ctos_alpn(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 347 X509 *x, size_t chainidx);
ab83e314 348#ifndef OPENSSL_NO_SRTP
b186a592 349EXT_RETURN tls_construct_ctos_use_srtp(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 350 X509 *x, size_t chainidx);
ab83e314 351#endif
b186a592 352EXT_RETURN tls_construct_ctos_etm(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 353 X509 *x, size_t chainidx);
ab83e314 354#ifndef OPENSSL_NO_CT
b186a592 355EXT_RETURN tls_construct_ctos_sct(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 356 X509 *x, size_t chainidx);
ab83e314 357#endif
b186a592 358EXT_RETURN tls_construct_ctos_ems(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 359 X509 *x, size_t chainidx);
b186a592
MC		 360EXT_RETURN tls_construct_ctos_supported_versions(SSL *s, WPACKET *pkt,
361 unsigned int context, X509 *x,
f63a17d6 362 size_t chainidx);
b186a592
MC		 363EXT_RETURN tls_construct_ctos_key_share(SSL *s, WPACKET *pkt,
364 unsigned int context, X509 *x,
f63a17d6 365 size_t chainidx);
b186a592
MC		 366EXT_RETURN tls_construct_ctos_psk_kex_modes(SSL *s, WPACKET *pkt,
367 unsigned int context, X509 *x,
f63a17d6 368 size_t chainidx);
b186a592 369EXT_RETURN tls_construct_ctos_cookie(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 370 X509 *x, size_t chainidx);
b186a592
MC		 371EXT_RETURN tls_construct_ctos_padding(SSL *s, WPACKET *pkt,
372 unsigned int context, X509 *x,
f63a17d6 373 size_t chainidx);
b186a592 374EXT_RETURN tls_construct_ctos_psk(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 375 X509 *x, size_t chainidx);
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TS		 376EXT_RETURN tls_construct_ctos_post_handshake_auth(SSL *s, WPACKET *pkt, unsigned int context,
377 X509 *x, size_t chainidx);
378
61138358 379int tls_parse_stoc_renegotiate(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 380 X509 *x, size_t chainidx);
61138358 381int tls_parse_stoc_server_name(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 382 X509 *x, size_t chainidx);
b2cc7f31 383int tls_parse_stoc_early_data(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 384 X509 *x, size_t chainidx);
cf72c757 385int tls_parse_stoc_maxfragmentlen(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 386 X509 *x, size_t chainidx);
61138358 387int tls_parse_stoc_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 388 X509 *x, size_t chainidx);
61138358 389int tls_parse_stoc_session_ticket(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 390 X509 *x, size_t chainidx);
ab83e314 391#ifndef OPENSSL_NO_OCSP
61138358 392int tls_parse_stoc_status_request(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 393 X509 *x, size_t chainidx);
ab83e314 394#endif
6dd083fd 395#ifndef OPENSSL_NO_CT
61138358 396int tls_parse_stoc_sct(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 397 size_t chainidx);
6dd083fd
MC		 398#endif
399#ifndef OPENSSL_NO_NEXTPROTONEG
61138358 400int tls_parse_stoc_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 401 size_t chainidx);
6dd083fd 402#endif
61138358 403int tls_parse_stoc_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 404 size_t chainidx);
6dd083fd 405#ifndef OPENSSL_NO_SRTP
61138358 406int tls_parse_stoc_use_srtp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 407 size_t chainidx);
6dd083fd 408#endif
61138358 409int tls_parse_stoc_etm(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 410 size_t chainidx);
61138358 411int tls_parse_stoc_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 412 size_t chainidx);
88050dd1
MC		 413int tls_parse_stoc_supported_versions(SSL *s, PACKET *pkt, unsigned int context,
414 X509 *x, size_t chainidx);
61138358 415int tls_parse_stoc_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 416 size_t chainidx);
cfef5027 417int tls_parse_stoc_cookie(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 418 size_t chainidx);
61138358 419int tls_parse_stoc_psk(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 420 size_t chainidx);
630369d9 421
f63a17d6 422int tls_handle_alpn(SSL *s);
9d75dce3
TS		 423
424int tls13_save_handshake_digest_for_pha(SSL *s);
425int tls13_restore_handshake_digest_for_pha(SSL *s);
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