2 * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
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
10 /*****************************************************************************
12 * The following definitions are PRIVATE to the state machine. They should *
13 * NOT be used outside of the state machine. *
15 *****************************************************************************/
17 /* Max message length definitions */
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 SERVER_HELLO_MAX_LENGTH 20000
23 #define HELLO_RETRY_REQUEST_MAX_LENGTH 20000
24 #define ENCRYPTED_EXTENSIONS_MAX_LENGTH 20000
25 #define SERVER_KEY_EXCH_MAX_LENGTH 102400
26 #define SERVER_HELLO_DONE_MAX_LENGTH 0
27 #define KEY_UPDATE_MAX_LENGTH 1
28 #define CCS_MAX_LENGTH 1
29 /* Max should actually be 36 but we are generous */
30 #define FINISHED_MAX_LENGTH 64
32 /* The maximum number of incoming KeyUpdate messages we will accept */
33 #define MAX_KEY_UPDATE_MESSAGES 32
35 /* Extension context codes */
36 /* This extension is only allowed in TLS */
37 #define EXT_TLS_ONLY 0x0001
38 /* This extension is only allowed in DTLS */
39 #define EXT_DTLS_ONLY 0x0002
40 /* Some extensions may be allowed in DTLS but we don't implement them for it */
41 #define EXT_TLS_IMPLEMENTATION_ONLY 0x0004
42 /* Most extensions are not defined for SSLv3 but EXT_TYPE_renegotiate is */
43 #define EXT_SSL3_ALLOWED 0x0008
44 /* Extension is only defined for TLS1.2 and above */
45 #define EXT_TLS1_2_AND_BELOW_ONLY 0x0010
46 /* Extension is only defined for TLS1.3 and above */
47 #define EXT_TLS1_3_ONLY 0x0020
48 #define EXT_CLIENT_HELLO 0x0040
49 /* Really means TLS1.2 or below */
50 #define EXT_TLS1_2_SERVER_HELLO 0x0080
51 #define EXT_TLS1_3_SERVER_HELLO 0x0100
52 #define EXT_TLS1_3_ENCRYPTED_EXTENSIONS 0x0200
53 #define EXT_TLS1_3_HELLO_RETRY_REQUEST 0x0400
54 #define EXT_TLS1_3_CERTIFICATE 0x0800
55 #define EXT_TLS1_3_NEW_SESSION_TICKET 0x1000
57 /* Dummy message type */
58 #define SSL3_MT_DUMMY -1
60 /* Message processing return codes */
62 /* Something bad happened */
64 /* We've finished reading - swap to writing */
65 MSG_PROCESS_FINISHED_READING
,
67 * We've completed the main processing of this message but there is some
68 * post processing to be done.
70 MSG_PROCESS_CONTINUE_PROCESSING
,
71 /* We've finished this message - read the next message */
72 MSG_PROCESS_CONTINUE_READING
75 /* Flush the write BIO */
76 int statem_flush(SSL
*s
);
78 typedef int (*confunc_f
) (SSL
*s
, WPACKET
*pkt
);
80 int check_in_list(SSL
*s
, unsigned int group_id
, const unsigned char *groups
,
81 size_t num_groups
, int checkallow
);
84 * TLS/DTLS client state machine functions
86 int ossl_statem_client_read_transition(SSL
*s
, int mt
);
87 WRITE_TRAN
ossl_statem_client_write_transition(SSL
*s
);
88 WORK_STATE
ossl_statem_client_pre_work(SSL
*s
, WORK_STATE wst
);
89 WORK_STATE
ossl_statem_client_post_work(SSL
*s
, WORK_STATE wst
);
90 int ossl_statem_client_construct_message(SSL
*s
, WPACKET
*pkt
,
91 confunc_f
*confunc
, int *mt
);
92 size_t ossl_statem_client_max_message_size(SSL
*s
);
93 MSG_PROCESS_RETURN
ossl_statem_client_process_message(SSL
*s
, PACKET
*pkt
);
94 WORK_STATE
ossl_statem_client_post_process_message(SSL
*s
, WORK_STATE wst
);
97 * TLS/DTLS server state machine functions
99 int ossl_statem_server_read_transition(SSL
*s
, int mt
);
100 WRITE_TRAN
ossl_statem_server_write_transition(SSL
*s
);
101 WORK_STATE
ossl_statem_server_pre_work(SSL
*s
, WORK_STATE wst
);
102 WORK_STATE
ossl_statem_server_post_work(SSL
*s
, WORK_STATE wst
);
103 int ossl_statem_server_construct_message(SSL
*s
, WPACKET
*pkt
,
104 confunc_f
*confunc
,int *mt
);
105 size_t ossl_statem_server_max_message_size(SSL
*s
);
106 MSG_PROCESS_RETURN
ossl_statem_server_process_message(SSL
*s
, PACKET
*pkt
);
107 WORK_STATE
ossl_statem_server_post_process_message(SSL
*s
, WORK_STATE wst
);
109 /* Functions for getting new message data */
110 __owur
int tls_get_message_header(SSL
*s
, int *mt
);
111 __owur
int tls_get_message_body(SSL
*s
, size_t *len
);
112 __owur
int dtls_get_message(SSL
*s
, int *mt
, size_t *len
);
114 /* Message construction and processing functions */
115 __owur
int tls_process_initial_server_flight(SSL
*s
, int *al
);
116 __owur MSG_PROCESS_RETURN
tls_process_change_cipher_spec(SSL
*s
, PACKET
*pkt
);
117 __owur MSG_PROCESS_RETURN
tls_process_finished(SSL
*s
, PACKET
*pkt
);
118 __owur
int tls_construct_change_cipher_spec(SSL
*s
, WPACKET
*pkt
);
119 __owur
int dtls_construct_change_cipher_spec(SSL
*s
, WPACKET
*pkt
);
121 __owur
int tls_construct_finished(SSL
*s
, WPACKET
*pkt
);
122 __owur
int tls_construct_key_update(SSL
*s
, WPACKET
*pkt
);
123 __owur MSG_PROCESS_RETURN
tls_process_key_update(SSL
*s
, PACKET
*pkt
);
124 __owur WORK_STATE
tls_finish_handshake(SSL
*s
, WORK_STATE wst
, int clearbufs
);
125 __owur WORK_STATE
dtls_wait_for_dry(SSL
*s
);
127 /* some client-only functions */
128 __owur
int tls_construct_client_hello(SSL
*s
, WPACKET
*pkt
);
129 __owur MSG_PROCESS_RETURN
tls_process_server_hello(SSL
*s
, PACKET
*pkt
);
130 __owur MSG_PROCESS_RETURN
tls_process_certificate_request(SSL
*s
, PACKET
*pkt
);
131 __owur MSG_PROCESS_RETURN
tls_process_new_session_ticket(SSL
*s
, PACKET
*pkt
);
132 __owur
int tls_process_cert_status_body(SSL
*s
, PACKET
*pkt
, int *al
);
133 __owur MSG_PROCESS_RETURN
tls_process_cert_status(SSL
*s
, PACKET
*pkt
);
134 __owur MSG_PROCESS_RETURN
tls_process_server_done(SSL
*s
, PACKET
*pkt
);
135 __owur
int tls_construct_cert_verify(SSL
*s
, WPACKET
*pkt
);
136 __owur WORK_STATE
tls_prepare_client_certificate(SSL
*s
, WORK_STATE wst
);
137 __owur
int tls_construct_client_certificate(SSL
*s
, WPACKET
*pkt
);
138 __owur
int ssl_do_client_cert_cb(SSL
*s
, X509
**px509
, EVP_PKEY
**ppkey
);
139 __owur
int tls_construct_client_key_exchange(SSL
*s
, WPACKET
*pkt
);
140 __owur
int tls_client_key_exchange_post_work(SSL
*s
);
141 __owur
int tls_construct_cert_status_body(SSL
*s
, WPACKET
*pkt
);
142 __owur
int tls_construct_cert_status(SSL
*s
, WPACKET
*pkt
);
143 __owur MSG_PROCESS_RETURN
tls_process_key_exchange(SSL
*s
, PACKET
*pkt
);
144 __owur MSG_PROCESS_RETURN
tls_process_server_certificate(SSL
*s
, PACKET
*pkt
);
145 __owur
int ssl3_check_cert_and_algorithm(SSL
*s
);
146 #ifndef OPENSSL_NO_NEXTPROTONEG
147 __owur
int tls_construct_next_proto(SSL
*s
, WPACKET
*pkt
);
149 __owur MSG_PROCESS_RETURN
tls_process_hello_req(SSL
*s
, PACKET
*pkt
);
150 __owur MSG_PROCESS_RETURN
dtls_process_hello_verify(SSL
*s
, PACKET
*pkt
);
151 __owur
int tls_construct_end_of_early_data(SSL
*s
, WPACKET
*pkt
);
153 /* some server-only functions */
154 __owur MSG_PROCESS_RETURN
tls_process_client_hello(SSL
*s
, PACKET
*pkt
);
155 __owur WORK_STATE
tls_post_process_client_hello(SSL
*s
, WORK_STATE wst
);
156 __owur
int tls_construct_server_hello(SSL
*s
, WPACKET
*pkt
);
157 __owur
int dtls_construct_hello_verify_request(SSL
*s
, WPACKET
*pkt
);
158 __owur
int tls_construct_server_certificate(SSL
*s
, WPACKET
*pkt
);
159 __owur
int tls_construct_server_key_exchange(SSL
*s
, WPACKET
*pkt
);
160 __owur
int tls_construct_certificate_request(SSL
*s
, WPACKET
*pkt
);
161 __owur
int tls_construct_server_done(SSL
*s
, WPACKET
*pkt
);
162 __owur MSG_PROCESS_RETURN
tls_process_client_certificate(SSL
*s
, PACKET
*pkt
);
163 __owur MSG_PROCESS_RETURN
tls_process_client_key_exchange(SSL
*s
, PACKET
*pkt
);
164 __owur WORK_STATE
tls_post_process_client_key_exchange(SSL
*s
, WORK_STATE wst
);
165 __owur MSG_PROCESS_RETURN
tls_process_cert_verify(SSL
*s
, PACKET
*pkt
);
166 #ifndef OPENSSL_NO_NEXTPROTONEG
167 __owur MSG_PROCESS_RETURN
tls_process_next_proto(SSL
*s
, PACKET
*pkt
);
169 __owur
int tls_construct_new_session_ticket(SSL
*s
, WPACKET
*pkt
);
170 MSG_PROCESS_RETURN
tls_process_end_of_early_data(SSL
*s
, PACKET
*pkt
);
173 /* Extension processing */
175 __owur
int tls_collect_extensions(SSL
*s
, PACKET
*packet
, unsigned int context
,
176 RAW_EXTENSION
**res
, int *al
, size_t *len
);
177 __owur
int tls_parse_extension(SSL
*s
, TLSEXT_INDEX idx
, int context
,
178 RAW_EXTENSION
*exts
, X509
*x
, size_t chainidx
,
180 __owur
int tls_parse_all_extensions(SSL
*s
, int context
, RAW_EXTENSION
*exts
,
181 X509
*x
, size_t chainidx
, int *al
);
182 __owur
int tls_construct_extensions(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
183 X509
*x
, size_t chainidx
, int *al
);
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
,
189 SSL_SESSION
*sess
, int sign
);
191 /* Server Extension processing */
192 int tls_parse_ctos_renegotiate(SSL
*s
, PACKET
*pkt
, unsigned int context
,
193 X509
*x
, size_t chainidx
, int *al
);
194 int tls_parse_ctos_server_name(SSL
*s
, PACKET
*pkt
, unsigned int context
,
195 X509
*x
, size_t chainidx
, int *al
);
196 #ifndef OPENSSL_NO_SRP
197 int tls_parse_ctos_srp(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
198 size_t chainidx
, int *al
);
200 int tls_parse_ctos_early_data(SSL
*s
, PACKET
*pkt
, unsigned int context
,
201 X509
*x
, size_t chainidx
, int *al
);
202 #ifndef OPENSSL_NO_EC
203 int tls_parse_ctos_ec_pt_formats(SSL
*s
, PACKET
*pkt
, unsigned int context
,
204 X509
*x
, size_t chainidx
, int *al
);
205 int tls_parse_ctos_supported_groups(SSL
*s
, PACKET
*pkt
, unsigned int context
,
206 X509
*x
, size_t chainidx
, int *al
);
208 int tls_parse_ctos_session_ticket(SSL
*s
, PACKET
*pkt
, unsigned int context
,
209 X509
*x
, size_t chainidx
, int *al
);
210 int tls_parse_ctos_sig_algs(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
211 size_t chainidx
, int *al
);
212 #ifndef OPENSSL_NO_OCSP
213 int tls_parse_ctos_status_request(SSL
*s
, PACKET
*pkt
, unsigned int context
,
214 X509
*x
, size_t chainidx
, int *al
);
216 #ifndef OPENSSL_NO_NEXTPROTONEG
217 int tls_parse_ctos_npn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
218 size_t chainidx
, int *al
);
220 int tls_parse_ctos_alpn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
221 size_t chainidx
, int *al
);
222 #ifndef OPENSSL_NO_SRTP
223 int tls_parse_ctos_use_srtp(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
224 size_t chainidx
, int *al
);
226 int tls_parse_ctos_etm(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
227 size_t chainidx
, int *al
);
228 int tls_parse_ctos_key_share(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
229 size_t chainidx
, int *al
);
230 int tls_parse_ctos_ems(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
231 size_t chainidx
, int *al
);
232 int tls_parse_ctos_psk_kex_modes(SSL
*s
, PACKET
*pkt
, unsigned int context
,
233 X509
*x
, size_t chainidx
, int *al
);
234 int tls_parse_ctos_psk(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
235 size_t chainidx
, int *al
);
237 int tls_construct_stoc_renegotiate(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
238 X509
*x
, size_t chainidx
, int *al
);
239 int tls_construct_stoc_server_name(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
240 X509
*x
, size_t chainidx
, int *al
);
241 int tls_construct_stoc_early_data_info(SSL
*s
, WPACKET
*pkt
,
242 unsigned int context
, X509
*x
,
243 size_t chainidx
, int *al
);
244 int tls_construct_stoc_early_data(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
245 X509
*x
, size_t chainidx
, int *al
);
246 #ifndef OPENSSL_NO_EC
247 int tls_construct_stoc_ec_pt_formats(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
248 X509
*x
, size_t chainidx
, int *al
);
250 int tls_construct_stoc_session_ticket(SSL
*s
, WPACKET
*pkt
,
251 unsigned int context
, X509
*x
,
252 size_t chainidx
, int *al
);
253 #ifndef OPENSSL_NO_OCSP
254 int tls_construct_stoc_status_request(SSL
*s
, WPACKET
*pkt
,
255 unsigned int context
, X509
*x
,
256 size_t chainidx
, int *al
);
258 #ifndef OPENSSL_NO_NEXTPROTONEG
259 int tls_construct_stoc_next_proto_neg(SSL
*s
, WPACKET
*pkt
,
260 unsigned int context
, X509
*x
,
261 size_t chainidx
, int *al
);
263 int tls_construct_stoc_alpn(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
264 size_t chainidx
, int *al
);
265 #ifndef OPENSSL_NO_SRTP
266 int tls_construct_stoc_use_srtp(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
267 X509
*x
, size_t chainidx
, int *al
);
269 int tls_construct_stoc_etm(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
270 size_t chainidx
, int *al
);
271 int tls_construct_stoc_ems(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
272 size_t chainidx
, int *al
);
273 int tls_construct_stoc_key_share(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
274 X509
*x
, size_t chainidx
, int *al
);
276 * Not in public headers as this is not an official extension. Only used when
277 * SSL_OP_CRYPTOPRO_TLSEXT_BUG is set.
279 #define TLSEXT_TYPE_cryptopro_bug 0xfde8
280 int tls_construct_stoc_cryptopro_bug(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
281 X509
*x
, size_t chainidx
, int *al
);
282 int tls_construct_stoc_psk(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
283 size_t chainidx
, int *al
);
285 /* Client Extension processing */
286 int tls_construct_ctos_renegotiate(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
287 X509
*x
, size_t chainidx
, int *al
);
288 int tls_construct_ctos_server_name(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
289 X509
*x
, size_t chainidx
, int *al
);
290 #ifndef OPENSSL_NO_SRP
291 int tls_construct_ctos_srp(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
292 size_t chainidx
, int *al
);
294 #ifndef OPENSSL_NO_EC
295 int tls_construct_ctos_ec_pt_formats(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
296 X509
*x
, size_t chainidx
, int *al
);
297 int tls_construct_ctos_supported_groups(SSL
*s
, WPACKET
*pkt
,
298 unsigned int context
, X509
*x
,
299 size_t chainidx
, int *al
);
301 int tls_construct_ctos_early_data(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
302 X509
*x
, size_t chainidx
, int *al
);
303 int tls_construct_ctos_session_ticket(SSL
*s
, WPACKET
*pkt
,
304 unsigned int context
, X509
*x
,
305 size_t chainidx
, int *al
);
306 int tls_construct_ctos_sig_algs(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
307 X509
*x
, size_t chainidx
, int *al
);
308 #ifndef OPENSSL_NO_OCSP
309 int tls_construct_ctos_status_request(SSL
*s
, WPACKET
*pkt
,
310 unsigned int context
, X509
*x
,
311 size_t chainidx
, int *al
);
313 #ifndef OPENSSL_NO_NEXTPROTONEG
314 int tls_construct_ctos_npn(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
315 size_t chainidx
, int *al
);
317 int tls_construct_ctos_alpn(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
318 size_t chainidx
, int *al
);
319 #ifndef OPENSSL_NO_SRTP
320 int tls_construct_ctos_use_srtp(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
321 X509
*x
, size_t chainidx
, int *al
);
323 int tls_construct_ctos_etm(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
324 size_t chainidx
, int *al
);
325 #ifndef OPENSSL_NO_CT
326 int tls_construct_ctos_sct(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
327 size_t chainidx
, int *al
);
329 int tls_construct_ctos_ems(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
330 size_t chainidx
, int *al
);
331 int tls_construct_ctos_supported_versions(SSL
*s
, WPACKET
*pkt
,
332 unsigned int context
, X509
*x
,
333 size_t chainidx
, int *al
);
334 int tls_construct_ctos_key_share(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
335 X509
*x
, size_t chainidx
, int *al
);
336 int tls_construct_ctos_psk_kex_modes(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
337 X509
*x
, size_t chainidx
, int *al
);
338 int tls_construct_ctos_cookie(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
339 X509
*x
, size_t chainidx
, int *al
);
340 int tls_construct_ctos_padding(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
341 X509
*x
, size_t chainidx
, int *al
);
342 int tls_construct_ctos_psk(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
343 size_t chainidx
, int *al
);
344 int tls_parse_stoc_renegotiate(SSL
*s
, PACKET
*pkt
, unsigned int context
,
345 X509
*x
, size_t chainidx
, int *al
);
346 int tls_parse_stoc_server_name(SSL
*s
, PACKET
*pkt
, unsigned int context
,
347 X509
*x
, size_t chainidx
, int *al
);
348 int tls_parse_stoc_early_data_info(SSL
*s
, PACKET
*pkt
, unsigned int context
,
349 X509
*x
, size_t chainidx
, int *al
);
350 int tls_parse_stoc_early_data(SSL
*s
, PACKET
*pkt
, unsigned int context
,
351 X509
*x
, size_t chainidx
, int *al
);
352 #ifndef OPENSSL_NO_EC
353 int tls_parse_stoc_ec_pt_formats(SSL
*s
, PACKET
*pkt
, unsigned int context
,
354 X509
*x
, size_t chainidx
, int *al
);
356 int tls_parse_stoc_session_ticket(SSL
*s
, PACKET
*pkt
, unsigned int context
,
357 X509
*x
, size_t chainidx
, int *al
);
358 #ifndef OPENSSL_NO_OCSP
359 int tls_parse_stoc_status_request(SSL
*s
, PACKET
*pkt
, unsigned int context
,
360 X509
*x
, size_t chainidx
, int *al
);
362 #ifndef OPENSSL_NO_CT
363 int tls_parse_stoc_sct(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
364 size_t chainidx
, int *al
);
366 #ifndef OPENSSL_NO_NEXTPROTONEG
367 int tls_parse_stoc_npn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
368 size_t chainidx
, int *al
);
370 int tls_parse_stoc_alpn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
371 size_t chainidx
, int *al
);
372 #ifndef OPENSSL_NO_SRTP
373 int tls_parse_stoc_use_srtp(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
374 size_t chainidx
, int *al
);
376 int tls_parse_stoc_etm(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
377 size_t chainidx
, int *al
);
378 int tls_parse_stoc_ems(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
379 size_t chainidx
, int *al
);
380 int tls_parse_stoc_key_share(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
381 size_t chainidx
, int *al
);
382 int tls_parse_stoc_cookie(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
383 size_t chainidx
, int *al
);
384 int tls_parse_stoc_psk(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
385 size_t chainidx
, int *al
);