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846e33c7 1/*
00c405b3 2 * Copyright 2015-2020 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
61ae935a 22#define SERVER_HELLO_MAX_LENGTH 20000
3847d426 23#define HELLO_RETRY_REQUEST_MAX_LENGTH 20000
e46f2334 24#define ENCRYPTED_EXTENSIONS_MAX_LENGTH 20000
61ae935a
MC		 25#define SERVER_KEY_EXCH_MAX_LENGTH 102400
26#define SERVER_HELLO_DONE_MAX_LENGTH 0
e1c3de44 27#define KEY_UPDATE_MAX_LENGTH 1
61ae935a
MC		 28#define CCS_MAX_LENGTH 1
29/* Max should actually be 36 but we are generous */
30#define FINISHED_MAX_LENGTH 64
31
f7e393be
MC		 32/* Dummy message type */
33#define SSL3_MT_DUMMY -1
34
597c51bc
MC		 35extern const unsigned char hrrrandom[];
36
61ae935a 37/* Message processing return codes */
be3583fa 38typedef enum {
61ae935a
MC		 39 /* Something bad happened */
40 MSG_PROCESS_ERROR,
41 /* We've finished reading - swap to writing */
42 MSG_PROCESS_FINISHED_READING,
43 /*
44 * We've completed the main processing of this message but there is some
45 * post processing to be done.
46 */
47 MSG_PROCESS_CONTINUE_PROCESSING,
48 /* We've finished this message - read the next message */
49 MSG_PROCESS_CONTINUE_READING
be3583fa 50} MSG_PROCESS_RETURN;
61ae935a 51
a15c953f
MC		 52typedef int (*confunc_f) (SSL *s, WPACKET *pkt);
53
5d671101 54int ssl3_take_mac(SSL *s);
9e84a42d 55int check_in_list(SSL *s, uint16_t group_id, const uint16_t *groups,
aff9929b 56 size_t num_groups, int checkallow);
43054d3d
MC		 57int create_synthetic_message_hash(SSL *s, const unsigned char *hashval,
58 size_t hashlen, const unsigned char *hrr,
59 size_t hrrlen);
f63a17d6 60int parse_ca_names(SSL *s, PACKET *pkt);
98732979
MC		 61const STACK_OF(X509_NAME) *get_ca_names(SSL *s);
62int construct_ca_names(SSL *s, const STACK_OF(X509_NAME) *ca_sk, WPACKET *pkt);
f63a17d6 63size_t construct_key_exchange_tbs(SSL *s, unsigned char **ptbs,
72ceb6a6 64 const void *param, size_t paramlen);
5d6cca05 65
61ae935a
MC		 66/*
67 * TLS/DTLS client state machine functions
68 */
8481f583
MC		 69int ossl_statem_client_read_transition(SSL *s, int mt);
70WRITE_TRAN ossl_statem_client_write_transition(SSL *s);
71WORK_STATE ossl_statem_client_pre_work(SSL *s, WORK_STATE wst);
72WORK_STATE ossl_statem_client_post_work(SSL *s, WORK_STATE wst);
6392fb8e 73int ossl_statem_client_construct_message(SSL *s, WPACKET *pkt,
a15c953f 74 confunc_f *confunc, int *mt);
eda75751 75size_t ossl_statem_client_max_message_size(SSL *s);
8481f583
MC		 76MSG_PROCESS_RETURN ossl_statem_client_process_message(SSL *s, PACKET *pkt);
77WORK_STATE ossl_statem_client_post_process_message(SSL *s, WORK_STATE wst);
61ae935a
MC		 78
79/*
80 * TLS/DTLS server state machine functions
81 */
8481f583
MC		 82int ossl_statem_server_read_transition(SSL *s, int mt);
83WRITE_TRAN ossl_statem_server_write_transition(SSL *s);
84WORK_STATE ossl_statem_server_pre_work(SSL *s, WORK_STATE wst);
85WORK_STATE ossl_statem_server_post_work(SSL *s, WORK_STATE wst);
6392fb8e 86int ossl_statem_server_construct_message(SSL *s, WPACKET *pkt,
a15c953f 87 confunc_f *confunc,int *mt);
eda75751 88size_t ossl_statem_server_max_message_size(SSL *s);
8481f583
MC		 89MSG_PROCESS_RETURN ossl_statem_server_process_message(SSL *s, PACKET *pkt);
90WORK_STATE ossl_statem_server_post_process_message(SSL *s, WORK_STATE wst);
61ae935a
MC		 91
92/* Functions for getting new message data */
93__owur int tls_get_message_header(SSL *s, int *mt);
eda75751
MC		 94__owur int tls_get_message_body(SSL *s, size_t *len);
95__owur int dtls_get_message(SSL *s, int *mt, size_t *len);
61ae935a
MC		 96
97/* Message construction and processing functions */
f63a17d6 98__owur int tls_process_initial_server_flight(SSL *s);
be3583fa
MC		 99__owur MSG_PROCESS_RETURN tls_process_change_cipher_spec(SSL *s, PACKET *pkt);
100__owur MSG_PROCESS_RETURN tls_process_finished(SSL *s, PACKET *pkt);
7cea05dc
MC		 101__owur int tls_construct_change_cipher_spec(SSL *s, WPACKET *pkt);
102__owur int dtls_construct_change_cipher_spec(SSL *s, WPACKET *pkt);
61ae935a 103
229185e6 104__owur int tls_construct_finished(SSL *s, WPACKET *pkt);
44c04a2e 105__owur int tls_construct_key_update(SSL *s, WPACKET *pkt);
e1c3de44 106__owur MSG_PROCESS_RETURN tls_process_key_update(SSL *s, PACKET *pkt);
2a8db717
MC		 107__owur WORK_STATE tls_finish_handshake(SSL *s, WORK_STATE wst, int clearbufs,
108 int stop);
be3583fa 109__owur WORK_STATE dtls_wait_for_dry(SSL *s);
61ae935a
MC		 110
111/* some client-only functions */
7cea05dc 112__owur int tls_construct_client_hello(SSL *s, WPACKET *pkt);
be3583fa
MC		 113__owur MSG_PROCESS_RETURN tls_process_server_hello(SSL *s, PACKET *pkt);
114__owur MSG_PROCESS_RETURN tls_process_certificate_request(SSL *s, PACKET *pkt);
115__owur MSG_PROCESS_RETURN tls_process_new_session_ticket(SSL *s, PACKET *pkt);
f63a17d6 116__owur int tls_process_cert_status_body(SSL *s, PACKET *pkt);
be3583fa
MC		 117__owur MSG_PROCESS_RETURN tls_process_cert_status(SSL *s, PACKET *pkt);
118__owur MSG_PROCESS_RETURN tls_process_server_done(SSL *s, PACKET *pkt);
d8bc1399 119__owur int tls_construct_cert_verify(SSL *s, WPACKET *pkt);
be3583fa 120__owur WORK_STATE tls_prepare_client_certificate(SSL *s, WORK_STATE wst);
7cea05dc 121__owur int tls_construct_client_certificate(SSL *s, WPACKET *pkt);
61ae935a 122__owur int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
7cea05dc 123__owur int tls_construct_client_key_exchange(SSL *s, WPACKET *pkt);
61ae935a 124__owur int tls_client_key_exchange_post_work(SSL *s);
f63e4288 125__owur int tls_construct_cert_status_body(SSL *s, WPACKET *pkt);
7cea05dc 126__owur int tls_construct_cert_status(SSL *s, WPACKET *pkt);
a230b26e 127__owur MSG_PROCESS_RETURN tls_process_key_exchange(SSL *s, PACKET *pkt);
be3583fa 128__owur MSG_PROCESS_RETURN tls_process_server_certificate(SSL *s, PACKET *pkt);
61ae935a 129__owur int ssl3_check_cert_and_algorithm(SSL *s);
a230b26e 130#ifndef OPENSSL_NO_NEXTPROTONEG
7cea05dc 131__owur int tls_construct_next_proto(SSL *s, WPACKET *pkt);
a230b26e 132#endif
c7f47786 133__owur MSG_PROCESS_RETURN tls_process_hello_req(SSL *s, PACKET *pkt);
be3583fa 134__owur MSG_PROCESS_RETURN dtls_process_hello_verify(SSL *s, PACKET *pkt);
ef6c191b 135__owur int tls_construct_end_of_early_data(SSL *s, WPACKET *pkt);
61ae935a
MC		 136
137/* some server-only functions */
be3583fa
MC		 138__owur MSG_PROCESS_RETURN tls_process_client_hello(SSL *s, PACKET *pkt);
139__owur WORK_STATE tls_post_process_client_hello(SSL *s, WORK_STATE wst);
7cea05dc 140__owur int tls_construct_server_hello(SSL *s, WPACKET *pkt);
7cea05dc
MC		 141__owur int dtls_construct_hello_verify_request(SSL *s, WPACKET *pkt);
142__owur int tls_construct_server_certificate(SSL *s, WPACKET *pkt);
143__owur int tls_construct_server_key_exchange(SSL *s, WPACKET *pkt);
144__owur int tls_construct_certificate_request(SSL *s, WPACKET *pkt);
145__owur int tls_construct_server_done(SSL *s, WPACKET *pkt);
be3583fa
MC		 146__owur MSG_PROCESS_RETURN tls_process_client_certificate(SSL *s, PACKET *pkt);
147__owur MSG_PROCESS_RETURN tls_process_client_key_exchange(SSL *s, PACKET *pkt);
148__owur WORK_STATE tls_post_process_client_key_exchange(SSL *s, WORK_STATE wst);
149__owur MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, PACKET *pkt);
a230b26e 150#ifndef OPENSSL_NO_NEXTPROTONEG
be3583fa 151__owur MSG_PROCESS_RETURN tls_process_next_proto(SSL *s, PACKET *pkt);
a230b26e 152#endif
7cea05dc 153__owur int tls_construct_new_session_ticket(SSL *s, WPACKET *pkt);
ef6c191b 154MSG_PROCESS_RETURN tls_process_end_of_early_data(SSL *s, PACKET *pkt);
6b473aca 155
5a5530a2
DB		 156#ifndef OPENSSL_NO_GOST
157/* These functions are used in GOST18 CKE, both for client and server */
158int gost18_cke_cipher_nid(const SSL *s);
159int gost_ukm(const SSL *s, unsigned char *dgst_buf);
160#endif
70af3d8e
MC		 161
162/* Extension processing */
163
355a0d10 164typedef enum ext_return_en {
b186a592
MC		 165 EXT_RETURN_FAIL,
166 EXT_RETURN_SENT,
167 EXT_RETURN_NOT_SENT
168} EXT_RETURN;
169
88050dd1
MC		 170__owur int tls_validate_all_contexts(SSL *s, unsigned int thisctx,
171 RAW_EXTENSION *exts);
43ae5eed
MC		 172__owur int extension_is_relevant(SSL *s, unsigned int extctx,
173 unsigned int thisctx);
70af3d8e 174__owur int tls_collect_extensions(SSL *s, PACKET *packet, unsigned int context,
f63a17d6 175 RAW_EXTENSION **res, size_t *len, int init);
7d152a3c 176__owur int tls_parse_extension(SSL *s, TLSEXT_INDEX idx, int context,
f63a17d6 177 RAW_EXTENSION *exts, X509 *x, size_t chainidx);
4b299b8e 178__owur int tls_parse_all_extensions(SSL *s, int context, RAW_EXTENSION *exts,
f63a17d6 179 X509 *x, size_t chainidx, int fin);
43ae5eed
MC		 180__owur int should_add_extension(SSL *s, unsigned int extctx,
181 unsigned int thisctx, int max_version);
4b299b8e 182__owur int tls_construct_extensions(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 183 X509 *x, size_t chainidx);
25670f3e 184
1053a6e2
MC		 185__owur int tls_psk_do_binder(SSL *s, const EVP_MD *md,
186 const unsigned char *msgstart,
187 size_t binderoffset, const unsigned char *binderin,
188 unsigned char *binderout,
3a7c56b2 189 SSL_SESSION *sess, int sign, int external);
1053a6e2 190
25670f3e 191/* Server Extension processing */
61138358 192int tls_parse_ctos_renegotiate(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 193 X509 *x, size_t chainidx);
61138358 194int tls_parse_ctos_server_name(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 195 X509 *x, size_t chainidx);
cf72c757 196int tls_parse_ctos_maxfragmentlen(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 197 X509 *x, size_t chainidx);
25670f3e 198#ifndef OPENSSL_NO_SRP
61138358 199int tls_parse_ctos_srp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 200 size_t chainidx);
25670f3e 201#endif
0a87d0ac 202int tls_parse_ctos_early_data(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 203 X509 *x, size_t chainidx);
25670f3e 204#ifndef OPENSSL_NO_EC
61138358 205int tls_parse_ctos_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 206 X509 *x, size_t chainidx);
dbc6268f 207#endif
61138358 208int tls_parse_ctos_supported_groups(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 209 X509 *x, size_t chainidxl);
61138358 210int tls_parse_ctos_session_ticket(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 211 X509 *x, size_t chainidx);
c589c34e
BK		 212int tls_parse_ctos_sig_algs_cert(SSL *s, PACKET *pkt, unsigned int context,
213 X509 *x, size_t chainidx);
61138358 214int tls_parse_ctos_sig_algs(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 215 size_t chainidx);
ab83e314 216#ifndef OPENSSL_NO_OCSP
61138358 217int tls_parse_ctos_status_request(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 218 X509 *x, size_t chainidx);
ab83e314 219#endif
25670f3e 220#ifndef OPENSSL_NO_NEXTPROTONEG
61138358 221int tls_parse_ctos_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 222 size_t chainidx);
25670f3e 223#endif
61138358 224int tls_parse_ctos_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 225 size_t chainidx);
25670f3e 226#ifndef OPENSSL_NO_SRTP
61138358 227int tls_parse_ctos_use_srtp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 228 size_t chainidx);
25670f3e 229#endif
61138358 230int tls_parse_ctos_etm(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 231 size_t chainidx);
61138358 232int tls_parse_ctos_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 233 size_t chainidx);
43054d3d
MC		 234int tls_parse_ctos_cookie(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
235 size_t chainidx);
61138358 236int tls_parse_ctos_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 237 size_t chainidx);
61138358 238int tls_parse_ctos_psk_kex_modes(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 239 X509 *x, size_t chainidx);
61138358 240int tls_parse_ctos_psk(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 241 size_t chainidx);
9d75dce3
TS		 242int tls_parse_ctos_post_handshake_auth(SSL *, PACKET *pkt, unsigned int context,
243 X509 *x, size_t chainidx);
7da160b0 244
b186a592
MC		 245EXT_RETURN tls_construct_stoc_renegotiate(SSL *s, WPACKET *pkt,
246 unsigned int context, X509 *x,
f63a17d6 247 size_t chainidx);
b186a592
MC		 248EXT_RETURN tls_construct_stoc_server_name(SSL *s, WPACKET *pkt,
249 unsigned int context, X509 *x,
f63a17d6 250 size_t chainidx);
b186a592
MC		 251EXT_RETURN tls_construct_stoc_early_data(SSL *s, WPACKET *pkt,
252 unsigned int context, X509 *x,
f63a17d6 253 size_t chainidx);
cf72c757
F		 254EXT_RETURN tls_construct_stoc_maxfragmentlen(SSL *s, WPACKET *pkt,
255 unsigned int context, X509 *x,
f63a17d6 256 size_t chainidx);
ab83e314 257#ifndef OPENSSL_NO_EC
b186a592
MC		 258EXT_RETURN tls_construct_stoc_ec_pt_formats(SSL *s, WPACKET *pkt,
259 unsigned int context, X509 *x,
f63a17d6 260 size_t chainidx);
ab83e314 261#endif
b186a592
MC		 262EXT_RETURN tls_construct_stoc_supported_groups(SSL *s, WPACKET *pkt,
263 unsigned int context, X509 *x,
f63a17d6 264 size_t chainidx);
b186a592
MC		 265EXT_RETURN tls_construct_stoc_session_ticket(SSL *s, WPACKET *pkt,
266 unsigned int context, X509 *x,
f63a17d6 267 size_t chainidx);
ab83e314 268#ifndef OPENSSL_NO_OCSP
b186a592
MC		 269EXT_RETURN tls_construct_stoc_status_request(SSL *s, WPACKET *pkt,
270 unsigned int context, X509 *x,
f63a17d6 271 size_t chainidx);
ab83e314
MC		 272#endif
273#ifndef OPENSSL_NO_NEXTPROTONEG
b186a592
MC		 274EXT_RETURN tls_construct_stoc_next_proto_neg(SSL *s, WPACKET *pkt,
275 unsigned int context, X509 *x,
f63a17d6 276 size_t chainidx);
ab83e314 277#endif
b186a592 278EXT_RETURN tls_construct_stoc_alpn(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 279 X509 *x, size_t chainidx);
ab83e314 280#ifndef OPENSSL_NO_SRTP
b186a592 281EXT_RETURN tls_construct_stoc_use_srtp(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 282 X509 *x, size_t chainidx);
ab83e314 283#endif
b186a592 284EXT_RETURN tls_construct_stoc_etm(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 285 X509 *x, size_t chainidx);
b186a592 286EXT_RETURN tls_construct_stoc_ems(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 287 X509 *x, size_t chainidx);
88050dd1
MC		 288EXT_RETURN tls_construct_stoc_supported_versions(SSL *s, WPACKET *pkt,
289 unsigned int context, X509 *x,
290 size_t chainidx);
b186a592
MC		 291EXT_RETURN tls_construct_stoc_key_share(SSL *s, WPACKET *pkt,
292 unsigned int context, X509 *x,
f63a17d6 293 size_t chainidx);
43054d3d
MC		 294EXT_RETURN tls_construct_stoc_cookie(SSL *s, WPACKET *pkt, unsigned int context,
295 X509 *x, size_t chainidx);
7da160b0
MC		 296/*
297 * Not in public headers as this is not an official extension. Only used when
298 * SSL_OP_CRYPTOPRO_TLSEXT_BUG is set.
299 */
300#define TLSEXT_TYPE_cryptopro_bug 0xfde8
b186a592
MC		 301EXT_RETURN tls_construct_stoc_cryptopro_bug(SSL *s, WPACKET *pkt,
302 unsigned int context, X509 *x,
f63a17d6 303 size_t chainidx);
b186a592 304EXT_RETURN tls_construct_stoc_psk(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 305 X509 *x, size_t chainidx);
6dd083fd
MC		 306
307/* Client Extension processing */
b186a592 308EXT_RETURN tls_construct_ctos_renegotiate(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 309 X509 *x, size_t chainidx);
b186a592 310EXT_RETURN tls_construct_ctos_server_name(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 311 X509 *x, size_t chainidx);
cf72c757 312EXT_RETURN tls_construct_ctos_maxfragmentlen(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 313 X509 *x, size_t chainidx);
ab83e314 314#ifndef OPENSSL_NO_SRP
b186a592 315EXT_RETURN tls_construct_ctos_srp(SSL *s, WPACKET *pkt, unsigned int context, X509 *x,
f63a17d6 316 size_t chainidx);
ab83e314
MC		 317#endif
318#ifndef OPENSSL_NO_EC
b186a592
MC		 319EXT_RETURN tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt,
320 unsigned int context, X509 *x,
f63a17d6 321 size_t chainidx);
dbc6268f 322#endif
b186a592
MC		 323EXT_RETURN tls_construct_ctos_supported_groups(SSL *s, WPACKET *pkt,
324 unsigned int context, X509 *x,
f63a17d6 325 size_t chainidx);
dbc6268f 326
b186a592
MC		 327EXT_RETURN tls_construct_ctos_early_data(SSL *s, WPACKET *pkt,
328 unsigned int context, X509 *x,
f63a17d6 329 size_t chainidx);
b186a592
MC		 330EXT_RETURN tls_construct_ctos_session_ticket(SSL *s, WPACKET *pkt,
331 unsigned int context, X509 *x,
f63a17d6 332 size_t chainidx);
b186a592
MC		 333EXT_RETURN tls_construct_ctos_sig_algs(SSL *s, WPACKET *pkt,
334 unsigned int context, X509 *x,
f63a17d6 335 size_t chainidx);
ab83e314 336#ifndef OPENSSL_NO_OCSP
b186a592
MC		 337EXT_RETURN tls_construct_ctos_status_request(SSL *s, WPACKET *pkt,
338 unsigned int context, X509 *x,
f63a17d6 339 size_t chainidx);
ab83e314
MC		 340#endif
341#ifndef OPENSSL_NO_NEXTPROTONEG
b186a592 342EXT_RETURN tls_construct_ctos_npn(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 343 X509 *x, size_t chainidx);
ab83e314 344#endif
b186a592 345EXT_RETURN tls_construct_ctos_alpn(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 346 X509 *x, size_t chainidx);
ab83e314 347#ifndef OPENSSL_NO_SRTP
b186a592 348EXT_RETURN tls_construct_ctos_use_srtp(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 349 X509 *x, size_t chainidx);
ab83e314 350#endif
b186a592 351EXT_RETURN tls_construct_ctos_etm(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 352 X509 *x, size_t chainidx);
ab83e314 353#ifndef OPENSSL_NO_CT
b186a592 354EXT_RETURN tls_construct_ctos_sct(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 355 X509 *x, size_t chainidx);
ab83e314 356#endif
b186a592 357EXT_RETURN tls_construct_ctos_ems(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 358 X509 *x, size_t chainidx);
b186a592
MC		 359EXT_RETURN tls_construct_ctos_supported_versions(SSL *s, WPACKET *pkt,
360 unsigned int context, X509 *x,
f63a17d6 361 size_t chainidx);
b186a592
MC		 362EXT_RETURN tls_construct_ctos_key_share(SSL *s, WPACKET *pkt,
363 unsigned int context, X509 *x,
f63a17d6 364 size_t chainidx);
b186a592
MC		 365EXT_RETURN tls_construct_ctos_psk_kex_modes(SSL *s, WPACKET *pkt,
366 unsigned int context, X509 *x,
f63a17d6 367 size_t chainidx);
b186a592 368EXT_RETURN tls_construct_ctos_cookie(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 369 X509 *x, size_t chainidx);
b186a592
MC		 370EXT_RETURN tls_construct_ctos_padding(SSL *s, WPACKET *pkt,
371 unsigned int context, X509 *x,
f63a17d6 372 size_t chainidx);
b186a592 373EXT_RETURN tls_construct_ctos_psk(SSL *s, WPACKET *pkt, unsigned int context,
f63a17d6 374 X509 *x, size_t chainidx);
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TS		 375EXT_RETURN tls_construct_ctos_post_handshake_auth(SSL *s, WPACKET *pkt, unsigned int context,
376 X509 *x, size_t chainidx);
377
61138358 378int tls_parse_stoc_renegotiate(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 379 X509 *x, size_t chainidx);
61138358 380int tls_parse_stoc_server_name(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 381 X509 *x, size_t chainidx);
b2cc7f31 382int tls_parse_stoc_early_data(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 383 X509 *x, size_t chainidx);
cf72c757 384int tls_parse_stoc_maxfragmentlen(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 385 X509 *x, size_t chainidx);
6dd083fd 386#ifndef OPENSSL_NO_EC
61138358 387int tls_parse_stoc_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 388 X509 *x, size_t chainidx);
6dd083fd 389#endif
61138358 390int tls_parse_stoc_session_ticket(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 391 X509 *x, size_t chainidx);
ab83e314 392#ifndef OPENSSL_NO_OCSP
61138358 393int tls_parse_stoc_status_request(SSL *s, PACKET *pkt, unsigned int context,
f63a17d6 394 X509 *x, size_t chainidx);
ab83e314 395#endif
6dd083fd 396#ifndef OPENSSL_NO_CT
61138358 397int tls_parse_stoc_sct(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 398 size_t chainidx);
6dd083fd
MC		 399#endif
400#ifndef OPENSSL_NO_NEXTPROTONEG
61138358 401int tls_parse_stoc_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 402 size_t chainidx);
6dd083fd 403#endif
61138358 404int tls_parse_stoc_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 405 size_t chainidx);
6dd083fd 406#ifndef OPENSSL_NO_SRTP
61138358 407int tls_parse_stoc_use_srtp(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 408 size_t chainidx);
6dd083fd 409#endif
61138358 410int tls_parse_stoc_etm(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 411 size_t chainidx);
61138358 412int tls_parse_stoc_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 413 size_t chainidx);
88050dd1
MC		 414int tls_parse_stoc_supported_versions(SSL *s, PACKET *pkt, unsigned int context,
415 X509 *x, size_t chainidx);
61138358 416int tls_parse_stoc_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 417 size_t chainidx);
cfef5027 418int tls_parse_stoc_cookie(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 419 size_t chainidx);
61138358 420int tls_parse_stoc_psk(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
f63a17d6 421 size_t chainidx);
630369d9 422
f63a17d6 423int tls_handle_alpn(SSL *s);
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TS		 424
425int tls13_save_handshake_digest_for_pha(SSL *s);
426int tls13_restore_handshake_digest_for_pha(SSL *s);
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