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 /* Dummy message type */
36 #define SSL3_MT_DUMMY -1
38 /* Message processing return codes */
40 /* Something bad happened */
42 /* We've finished reading - swap to writing */
43 MSG_PROCESS_FINISHED_READING
,
45 * We've completed the main processing of this message but there is some
46 * post processing to be done.
48 MSG_PROCESS_CONTINUE_PROCESSING
,
49 /* We've finished this message - read the next message */
50 MSG_PROCESS_CONTINUE_READING
53 /* Flush the write BIO */
54 int statem_flush(SSL
*s
);
56 typedef int (*confunc_f
) (SSL
*s
, WPACKET
*pkt
);
58 #define GET_GROUP_ID(group, idx) \
59 (unsigned int)(((group)[(idx) * 2] << 8) | (group)[((idx) * 2) + 1])
61 int check_in_list(SSL
*s
, unsigned int group_id
, const unsigned char *groups
,
62 size_t num_groups
, int checkallow
);
63 int create_synthetic_message_hash(SSL
*s
);
64 int parse_ca_names(SSL
*s
, PACKET
*pkt
, int *al
);
65 int construct_ca_names(SSL
*s
, WPACKET
*pkt
);
68 * TLS/DTLS client state machine functions
70 int ossl_statem_client_read_transition(SSL
*s
, int mt
);
71 WRITE_TRAN
ossl_statem_client_write_transition(SSL
*s
);
72 WORK_STATE
ossl_statem_client_pre_work(SSL
*s
, WORK_STATE wst
);
73 WORK_STATE
ossl_statem_client_post_work(SSL
*s
, WORK_STATE wst
);
74 int ossl_statem_client_construct_message(SSL
*s
, WPACKET
*pkt
,
75 confunc_f
*confunc
, int *mt
);
76 size_t ossl_statem_client_max_message_size(SSL
*s
);
77 MSG_PROCESS_RETURN
ossl_statem_client_process_message(SSL
*s
, PACKET
*pkt
);
78 WORK_STATE
ossl_statem_client_post_process_message(SSL
*s
, WORK_STATE wst
);
81 * TLS/DTLS server state machine functions
83 int ossl_statem_server_read_transition(SSL
*s
, int mt
);
84 WRITE_TRAN
ossl_statem_server_write_transition(SSL
*s
);
85 WORK_STATE
ossl_statem_server_pre_work(SSL
*s
, WORK_STATE wst
);
86 WORK_STATE
ossl_statem_server_post_work(SSL
*s
, WORK_STATE wst
);
87 int ossl_statem_server_construct_message(SSL
*s
, WPACKET
*pkt
,
88 confunc_f
*confunc
,int *mt
);
89 size_t ossl_statem_server_max_message_size(SSL
*s
);
90 MSG_PROCESS_RETURN
ossl_statem_server_process_message(SSL
*s
, PACKET
*pkt
);
91 WORK_STATE
ossl_statem_server_post_process_message(SSL
*s
, WORK_STATE wst
);
93 /* Functions for getting new message data */
94 __owur
int tls_get_message_header(SSL
*s
, int *mt
);
95 __owur
int tls_get_message_body(SSL
*s
, size_t *len
);
96 __owur
int dtls_get_message(SSL
*s
, int *mt
, size_t *len
);
98 /* Message construction and processing functions */
99 __owur
int tls_process_initial_server_flight(SSL
*s
, int *al
);
100 __owur MSG_PROCESS_RETURN
tls_process_change_cipher_spec(SSL
*s
, PACKET
*pkt
);
101 __owur MSG_PROCESS_RETURN
tls_process_finished(SSL
*s
, PACKET
*pkt
);
102 __owur
int tls_construct_change_cipher_spec(SSL
*s
, WPACKET
*pkt
);
103 __owur
int dtls_construct_change_cipher_spec(SSL
*s
, WPACKET
*pkt
);
105 __owur
int tls_construct_finished(SSL
*s
, WPACKET
*pkt
);
106 __owur
int tls_construct_key_update(SSL
*s
, WPACKET
*pkt
);
107 __owur MSG_PROCESS_RETURN
tls_process_key_update(SSL
*s
, PACKET
*pkt
);
108 __owur WORK_STATE
tls_finish_handshake(SSL
*s
, WORK_STATE wst
, int clearbufs
);
109 __owur WORK_STATE
dtls_wait_for_dry(SSL
*s
);
111 /* some client-only functions */
112 __owur
int tls_construct_client_hello(SSL
*s
, WPACKET
*pkt
);
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
);
116 __owur
int tls_process_cert_status_body(SSL
*s
, PACKET
*pkt
, int *al
);
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
);
119 __owur
int tls_construct_cert_verify(SSL
*s
, WPACKET
*pkt
);
120 __owur WORK_STATE
tls_prepare_client_certificate(SSL
*s
, WORK_STATE wst
);
121 __owur
int tls_construct_client_certificate(SSL
*s
, WPACKET
*pkt
);
122 __owur
int ssl_do_client_cert_cb(SSL
*s
, X509
**px509
, EVP_PKEY
**ppkey
);
123 __owur
int tls_construct_client_key_exchange(SSL
*s
, WPACKET
*pkt
);
124 __owur
int tls_client_key_exchange_post_work(SSL
*s
);
125 __owur
int tls_construct_cert_status_body(SSL
*s
, WPACKET
*pkt
);
126 __owur
int tls_construct_cert_status(SSL
*s
, WPACKET
*pkt
);
127 __owur MSG_PROCESS_RETURN
tls_process_key_exchange(SSL
*s
, PACKET
*pkt
);
128 __owur MSG_PROCESS_RETURN
tls_process_server_certificate(SSL
*s
, PACKET
*pkt
);
129 __owur
int ssl3_check_cert_and_algorithm(SSL
*s
);
130 #ifndef OPENSSL_NO_NEXTPROTONEG
131 __owur
int tls_construct_next_proto(SSL
*s
, WPACKET
*pkt
);
133 __owur MSG_PROCESS_RETURN
tls_process_hello_req(SSL
*s
, PACKET
*pkt
);
134 __owur MSG_PROCESS_RETURN
dtls_process_hello_verify(SSL
*s
, PACKET
*pkt
);
135 __owur
int tls_construct_end_of_early_data(SSL
*s
, WPACKET
*pkt
);
137 /* some server-only functions */
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
);
140 __owur
int tls_construct_server_hello(SSL
*s
, WPACKET
*pkt
);
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
);
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
);
150 #ifndef OPENSSL_NO_NEXTPROTONEG
151 __owur MSG_PROCESS_RETURN
tls_process_next_proto(SSL
*s
, PACKET
*pkt
);
153 __owur
int tls_construct_new_session_ticket(SSL
*s
, WPACKET
*pkt
);
154 MSG_PROCESS_RETURN
tls_process_end_of_early_data(SSL
*s
, PACKET
*pkt
);
157 /* Extension processing */
165 __owur
int extension_is_relevant(SSL
*s
, unsigned int extctx
,
166 unsigned int thisctx
);
167 __owur
int tls_collect_extensions(SSL
*s
, PACKET
*packet
, unsigned int context
,
168 RAW_EXTENSION
**res
, int *al
, size_t *len
,
170 __owur
int tls_parse_extension(SSL
*s
, TLSEXT_INDEX idx
, int context
,
171 RAW_EXTENSION
*exts
, X509
*x
, size_t chainidx
,
173 __owur
int tls_parse_all_extensions(SSL
*s
, int context
, RAW_EXTENSION
*exts
,
174 X509
*x
, size_t chainidx
, int *al
, int fin
);
175 __owur
int should_add_extension(SSL
*s
, unsigned int extctx
,
176 unsigned int thisctx
, int max_version
);
177 __owur
int tls_construct_extensions(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
178 X509
*x
, size_t chainidx
, int *al
);
180 __owur
int tls_psk_do_binder(SSL
*s
, const EVP_MD
*md
,
181 const unsigned char *msgstart
,
182 size_t binderoffset
, const unsigned char *binderin
,
183 unsigned char *binderout
,
184 SSL_SESSION
*sess
, int sign
);
186 /* Server Extension processing */
187 int tls_parse_ctos_renegotiate(SSL
*s
, PACKET
*pkt
, unsigned int context
,
188 X509
*x
, size_t chainidx
, int *al
);
189 int tls_parse_ctos_server_name(SSL
*s
, PACKET
*pkt
, unsigned int context
,
190 X509
*x
, size_t chainidx
, int *al
);
191 #ifndef OPENSSL_NO_SRP
192 int tls_parse_ctos_srp(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
193 size_t chainidx
, int *al
);
195 int tls_parse_ctos_early_data(SSL
*s
, PACKET
*pkt
, unsigned int context
,
196 X509
*x
, size_t chainidx
, int *al
);
197 #ifndef OPENSSL_NO_EC
198 int tls_parse_ctos_ec_pt_formats(SSL
*s
, PACKET
*pkt
, unsigned int context
,
199 X509
*x
, size_t chainidx
, int *al
);
200 int tls_parse_ctos_supported_groups(SSL
*s
, PACKET
*pkt
, unsigned int context
,
201 X509
*x
, size_t chainidx
, int *al
);
203 int tls_parse_ctos_session_ticket(SSL
*s
, PACKET
*pkt
, unsigned int context
,
204 X509
*x
, size_t chainidx
, int *al
);
205 int tls_parse_ctos_sig_algs(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
206 size_t chainidx
, int *al
);
207 #ifndef OPENSSL_NO_OCSP
208 int tls_parse_ctos_status_request(SSL
*s
, PACKET
*pkt
, unsigned int context
,
209 X509
*x
, size_t chainidx
, int *al
);
211 #ifndef OPENSSL_NO_NEXTPROTONEG
212 int tls_parse_ctos_npn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
213 size_t chainidx
, int *al
);
215 int tls_parse_ctos_alpn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
216 size_t chainidx
, int *al
);
217 #ifndef OPENSSL_NO_SRTP
218 int tls_parse_ctos_use_srtp(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
219 size_t chainidx
, int *al
);
221 int tls_parse_ctos_etm(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
222 size_t chainidx
, int *al
);
223 int tls_parse_ctos_key_share(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
224 size_t chainidx
, int *al
);
225 int tls_parse_ctos_ems(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
226 size_t chainidx
, int *al
);
227 int tls_parse_ctos_psk_kex_modes(SSL
*s
, PACKET
*pkt
, unsigned int context
,
228 X509
*x
, size_t chainidx
, int *al
);
229 int tls_parse_ctos_psk(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
230 size_t chainidx
, int *al
);
232 EXT_RETURN
tls_construct_stoc_renegotiate(SSL
*s
, WPACKET
*pkt
,
233 unsigned int context
, X509
*x
,
234 size_t chainidx
, int *al
);
235 EXT_RETURN
tls_construct_stoc_server_name(SSL
*s
, WPACKET
*pkt
,
236 unsigned int context
, X509
*x
,
237 size_t chainidx
, int *al
);
238 EXT_RETURN
tls_construct_stoc_early_data(SSL
*s
, WPACKET
*pkt
,
239 unsigned int context
, X509
*x
,
240 size_t chainidx
, int *al
);
241 #ifndef OPENSSL_NO_EC
242 EXT_RETURN
tls_construct_stoc_ec_pt_formats(SSL
*s
, WPACKET
*pkt
,
243 unsigned int context
, X509
*x
,
244 size_t chainidx
, int *al
);
246 EXT_RETURN
tls_construct_stoc_supported_groups(SSL
*s
, WPACKET
*pkt
,
247 unsigned int context
, X509
*x
,
248 size_t chainidx
, int *al
);
249 EXT_RETURN
tls_construct_stoc_session_ticket(SSL
*s
, WPACKET
*pkt
,
250 unsigned int context
, X509
*x
,
251 size_t chainidx
, int *al
);
252 #ifndef OPENSSL_NO_OCSP
253 EXT_RETURN
tls_construct_stoc_status_request(SSL
*s
, WPACKET
*pkt
,
254 unsigned int context
, X509
*x
,
255 size_t chainidx
, int *al
);
257 #ifndef OPENSSL_NO_NEXTPROTONEG
258 EXT_RETURN
tls_construct_stoc_next_proto_neg(SSL
*s
, WPACKET
*pkt
,
259 unsigned int context
, X509
*x
,
260 size_t chainidx
, int *al
);
262 EXT_RETURN
tls_construct_stoc_alpn(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
263 X509
*x
, size_t chainidx
, int *al
);
264 #ifndef OPENSSL_NO_SRTP
265 EXT_RETURN
tls_construct_stoc_use_srtp(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
266 X509
*x
, size_t chainidx
, int *al
);
268 EXT_RETURN
tls_construct_stoc_etm(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
269 X509
*x
, size_t chainidx
, int *al
);
270 EXT_RETURN
tls_construct_stoc_ems(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
271 X509
*x
, size_t chainidx
, int *al
);
272 EXT_RETURN
tls_construct_stoc_key_share(SSL
*s
, WPACKET
*pkt
,
273 unsigned int context
, X509
*x
,
274 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 EXT_RETURN
tls_construct_stoc_cryptopro_bug(SSL
*s
, WPACKET
*pkt
,
281 unsigned int context
, X509
*x
,
282 size_t chainidx
, int *al
);
283 EXT_RETURN
tls_construct_stoc_psk(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
284 X509
*x
, size_t chainidx
, int *al
);
286 /* Client Extension processing */
287 EXT_RETURN
tls_construct_ctos_renegotiate(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
288 X509
*x
, size_t chainidx
, int *al
);
289 EXT_RETURN
tls_construct_ctos_server_name(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
290 X509
*x
, size_t chainidx
, int *al
);
291 #ifndef OPENSSL_NO_SRP
292 EXT_RETURN
tls_construct_ctos_srp(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
293 size_t chainidx
, int *al
);
295 #ifndef OPENSSL_NO_EC
296 EXT_RETURN
tls_construct_ctos_ec_pt_formats(SSL
*s
, WPACKET
*pkt
,
297 unsigned int context
, X509
*x
,
298 size_t chainidx
, int *al
);
299 EXT_RETURN
tls_construct_ctos_supported_groups(SSL
*s
, WPACKET
*pkt
,
300 unsigned int context
, X509
*x
,
301 size_t chainidx
, int *al
);
303 EXT_RETURN
tls_construct_ctos_early_data(SSL
*s
, WPACKET
*pkt
,
304 unsigned int context
, X509
*x
,
305 size_t chainidx
, int *al
);
306 EXT_RETURN
tls_construct_ctos_session_ticket(SSL
*s
, WPACKET
*pkt
,
307 unsigned int context
, X509
*x
,
308 size_t chainidx
, int *al
);
309 EXT_RETURN
tls_construct_ctos_sig_algs(SSL
*s
, WPACKET
*pkt
,
310 unsigned int context
, X509
*x
,
311 size_t chainidx
, int *al
);
312 #ifndef OPENSSL_NO_OCSP
313 EXT_RETURN
tls_construct_ctos_status_request(SSL
*s
, WPACKET
*pkt
,
314 unsigned int context
, X509
*x
,
315 size_t chainidx
, int *al
);
317 #ifndef OPENSSL_NO_NEXTPROTONEG
318 EXT_RETURN
tls_construct_ctos_npn(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
319 X509
*x
, size_t chainidx
, int *al
);
321 EXT_RETURN
tls_construct_ctos_alpn(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
322 X509
*x
, size_t chainidx
, int *al
);
323 #ifndef OPENSSL_NO_SRTP
324 EXT_RETURN
tls_construct_ctos_use_srtp(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
325 X509
*x
, size_t chainidx
, int *al
);
327 EXT_RETURN
tls_construct_ctos_etm(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
328 X509
*x
, size_t chainidx
, int *al
);
329 #ifndef OPENSSL_NO_CT
330 EXT_RETURN
tls_construct_ctos_sct(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
331 X509
*x
, size_t chainidx
, int *al
);
333 EXT_RETURN
tls_construct_ctos_ems(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
334 X509
*x
, size_t chainidx
, int *al
);
335 EXT_RETURN
tls_construct_ctos_supported_versions(SSL
*s
, WPACKET
*pkt
,
336 unsigned int context
, X509
*x
,
337 size_t chainidx
, int *al
);
338 EXT_RETURN
tls_construct_ctos_key_share(SSL
*s
, WPACKET
*pkt
,
339 unsigned int context
, X509
*x
,
340 size_t chainidx
, int *al
);
341 EXT_RETURN
tls_construct_ctos_psk_kex_modes(SSL
*s
, WPACKET
*pkt
,
342 unsigned int context
, X509
*x
,
343 size_t chainidx
, int *al
);
344 EXT_RETURN
tls_construct_ctos_cookie(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
345 X509
*x
, size_t chainidx
, int *al
);
346 EXT_RETURN
tls_construct_ctos_padding(SSL
*s
, WPACKET
*pkt
,
347 unsigned int context
, X509
*x
,
348 size_t chainidx
, int *al
);
349 EXT_RETURN
tls_construct_ctos_psk(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
350 X509
*x
, size_t chainidx
, int *al
);
351 int tls_parse_stoc_renegotiate(SSL
*s
, PACKET
*pkt
, unsigned int context
,
352 X509
*x
, size_t chainidx
, int *al
);
353 int tls_parse_stoc_server_name(SSL
*s
, PACKET
*pkt
, unsigned int context
,
354 X509
*x
, size_t chainidx
, int *al
);
355 int tls_parse_stoc_early_data(SSL
*s
, PACKET
*pkt
, unsigned int context
,
356 X509
*x
, size_t chainidx
, int *al
);
357 #ifndef OPENSSL_NO_EC
358 int tls_parse_stoc_ec_pt_formats(SSL
*s
, PACKET
*pkt
, unsigned int context
,
359 X509
*x
, size_t chainidx
, int *al
);
361 int tls_parse_stoc_session_ticket(SSL
*s
, PACKET
*pkt
, unsigned int context
,
362 X509
*x
, size_t chainidx
, int *al
);
363 #ifndef OPENSSL_NO_OCSP
364 int tls_parse_stoc_status_request(SSL
*s
, PACKET
*pkt
, unsigned int context
,
365 X509
*x
, size_t chainidx
, int *al
);
367 #ifndef OPENSSL_NO_CT
368 int tls_parse_stoc_sct(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
369 size_t chainidx
, int *al
);
371 #ifndef OPENSSL_NO_NEXTPROTONEG
372 int tls_parse_stoc_npn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
373 size_t chainidx
, int *al
);
375 int tls_parse_stoc_alpn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
376 size_t chainidx
, int *al
);
377 #ifndef OPENSSL_NO_SRTP
378 int tls_parse_stoc_use_srtp(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
379 size_t chainidx
, int *al
);
381 int tls_parse_stoc_etm(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
382 size_t chainidx
, int *al
);
383 int tls_parse_stoc_ems(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
384 size_t chainidx
, int *al
);
385 int tls_parse_stoc_key_share(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
386 size_t chainidx
, int *al
);
387 int tls_parse_stoc_cookie(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
388 size_t chainidx
, int *al
);
389 int tls_parse_stoc_psk(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
390 size_t chainidx
, int *al
);