2 * Copyright 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
11 #include <openssl/ocsp.h>
12 #include "../ssl_locl.h"
13 #include "statem_locl.h"
15 int tls_construct_ctos_renegotiate(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
16 X509
*x
, size_t chainidx
, int *al
)
18 /* Add RI if renegotiating */
22 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_renegotiate
)
23 || !WPACKET_start_sub_packet_u16(pkt
)
24 || !WPACKET_sub_memcpy_u8(pkt
, s
->s3
->previous_client_finished
,
25 s
->s3
->previous_client_finished_len
)
26 || !WPACKET_close(pkt
)) {
27 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_RENEGOTIATE
, ERR_R_INTERNAL_ERROR
);
34 int tls_construct_ctos_server_name(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
35 X509
*x
, size_t chainidx
, int *al
)
37 if (s
->ext
.hostname
== NULL
)
40 /* Add TLS extension servername to the Client Hello message */
41 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_server_name
)
42 /* Sub-packet for server_name extension */
43 || !WPACKET_start_sub_packet_u16(pkt
)
44 /* Sub-packet for servername list (always 1 hostname)*/
45 || !WPACKET_start_sub_packet_u16(pkt
)
46 || !WPACKET_put_bytes_u8(pkt
, TLSEXT_NAMETYPE_host_name
)
47 || !WPACKET_sub_memcpy_u16(pkt
, s
->ext
.hostname
,
48 strlen(s
->ext
.hostname
))
49 || !WPACKET_close(pkt
)
50 || !WPACKET_close(pkt
)) {
51 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SERVER_NAME
, ERR_R_INTERNAL_ERROR
);
58 #ifndef OPENSSL_NO_SRP
59 int tls_construct_ctos_srp(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
60 size_t chainidx
, int *al
)
62 /* Add SRP username if there is one */
63 if (s
->srp_ctx
.login
== NULL
)
66 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_srp
)
67 /* Sub-packet for SRP extension */
68 || !WPACKET_start_sub_packet_u16(pkt
)
69 || !WPACKET_start_sub_packet_u8(pkt
)
70 /* login must not be zero...internal error if so */
71 || !WPACKET_set_flags(pkt
, WPACKET_FLAGS_NON_ZERO_LENGTH
)
72 || !WPACKET_memcpy(pkt
, s
->srp_ctx
.login
,
73 strlen(s
->srp_ctx
.login
))
74 || !WPACKET_close(pkt
)
75 || !WPACKET_close(pkt
)) {
76 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SRP
, ERR_R_INTERNAL_ERROR
);
85 static int use_ecc(SSL
*s
)
88 unsigned long alg_k
, alg_a
;
89 STACK_OF(SSL_CIPHER
) *cipher_stack
= NULL
;
91 /* See if we support any ECC ciphersuites */
92 if (s
->version
== SSL3_VERSION
)
95 cipher_stack
= SSL_get_ciphers(s
);
96 end
= sk_SSL_CIPHER_num(cipher_stack
);
97 for (i
= 0; i
< end
; i
++) {
98 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(cipher_stack
, i
);
100 alg_k
= c
->algorithm_mkey
;
101 alg_a
= c
->algorithm_auth
;
102 if ((alg_k
& (SSL_kECDHE
| SSL_kECDHEPSK
))
103 || (alg_a
& SSL_aECDSA
)
104 || c
->min_tls
>= TLS1_3_VERSION
)
111 int tls_construct_ctos_ec_pt_formats(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
112 X509
*x
, size_t chainidx
, int *al
)
114 const unsigned char *pformats
;
120 /* Add TLS extension ECPointFormats to the ClientHello message */
121 tls1_get_formatlist(s
, &pformats
, &num_formats
);
123 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_ec_point_formats
)
124 /* Sub-packet for formats extension */
125 || !WPACKET_start_sub_packet_u16(pkt
)
126 || !WPACKET_sub_memcpy_u8(pkt
, pformats
, num_formats
)
127 || !WPACKET_close(pkt
)) {
128 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_EC_PT_FORMATS
, ERR_R_INTERNAL_ERROR
);
135 int tls_construct_ctos_supported_groups(SSL
*s
, WPACKET
*pkt
,
136 unsigned int context
, X509
*x
,
137 size_t chainidx
, int *al
)
139 const unsigned char *pcurves
= NULL
, *pcurvestmp
;
140 size_t num_curves
= 0, i
;
146 * Add TLS extension supported_groups to the ClientHello message
148 /* TODO(TLS1.3): Add support for DHE groups */
149 pcurves
= s
->ext
.supportedgroups
;
150 if (!tls1_get_curvelist(s
, 0, &pcurves
, &num_curves
)) {
151 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_GROUPS
,
152 ERR_R_INTERNAL_ERROR
);
155 pcurvestmp
= pcurves
;
157 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_supported_groups
)
158 /* Sub-packet for supported_groups extension */
159 || !WPACKET_start_sub_packet_u16(pkt
)
160 || !WPACKET_start_sub_packet_u16(pkt
)) {
161 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_GROUPS
,
162 ERR_R_INTERNAL_ERROR
);
165 /* Copy curve ID if supported */
166 for (i
= 0; i
< num_curves
; i
++, pcurvestmp
+= 2) {
167 if (tls_curve_allowed(s
, pcurvestmp
, SSL_SECOP_CURVE_SUPPORTED
)) {
168 if (!WPACKET_put_bytes_u8(pkt
, pcurvestmp
[0])
169 || !WPACKET_put_bytes_u8(pkt
, pcurvestmp
[1])) {
170 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_GROUPS
,
171 ERR_R_INTERNAL_ERROR
);
176 if (!WPACKET_close(pkt
) || !WPACKET_close(pkt
)) {
177 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_GROUPS
,
178 ERR_R_INTERNAL_ERROR
);
186 int tls_construct_ctos_session_ticket(SSL
*s
, WPACKET
*pkt
,
187 unsigned int context
, X509
*x
,
188 size_t chainidx
, int *al
)
192 if (!tls_use_ticket(s
))
195 if (!s
->new_session
&& s
->session
!= NULL
196 && s
->session
->ext
.tick
!= NULL
197 && s
->session
->ssl_version
!= TLS1_3_VERSION
) {
198 ticklen
= s
->session
->ext
.ticklen
;
199 } else if (s
->session
&& s
->ext
.session_ticket
!= NULL
200 && s
->ext
.session_ticket
->data
!= NULL
) {
201 ticklen
= s
->ext
.session_ticket
->length
;
202 s
->session
->ext
.tick
= OPENSSL_malloc(ticklen
);
203 if (s
->session
->ext
.tick
== NULL
) {
204 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SESSION_TICKET
,
205 ERR_R_INTERNAL_ERROR
);
208 memcpy(s
->session
->ext
.tick
,
209 s
->ext
.session_ticket
->data
, ticklen
);
210 s
->session
->ext
.ticklen
= ticklen
;
215 if (ticklen
== 0 && s
->ext
.session_ticket
!= NULL
&&
216 s
->ext
.session_ticket
->data
== NULL
)
219 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_session_ticket
)
220 || !WPACKET_sub_memcpy_u16(pkt
, s
->session
->ext
.tick
, ticklen
)) {
221 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SESSION_TICKET
, ERR_R_INTERNAL_ERROR
);
228 int tls_construct_ctos_sig_algs(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
229 X509
*x
, size_t chainidx
, int *al
)
232 const uint16_t *salg
;
234 if (!SSL_CLIENT_USE_SIGALGS(s
))
237 salglen
= tls12_get_psigalgs(s
, 1, &salg
);
238 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_signature_algorithms
)
239 /* Sub-packet for sig-algs extension */
240 || !WPACKET_start_sub_packet_u16(pkt
)
241 /* Sub-packet for the actual list */
242 || !WPACKET_start_sub_packet_u16(pkt
)
243 || !tls12_copy_sigalgs(s
, pkt
, salg
, salglen
)
244 || !WPACKET_close(pkt
)
245 || !WPACKET_close(pkt
)) {
246 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SIG_ALGS
, ERR_R_INTERNAL_ERROR
);
253 #ifndef OPENSSL_NO_OCSP
254 int tls_construct_ctos_status_request(SSL
*s
, WPACKET
*pkt
,
255 unsigned int context
, X509
*x
,
256 size_t chainidx
, int *al
)
260 /* This extension isn't defined for client Certificates */
264 if (s
->ext
.status_type
!= TLSEXT_STATUSTYPE_ocsp
)
267 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_status_request
)
268 /* Sub-packet for status request extension */
269 || !WPACKET_start_sub_packet_u16(pkt
)
270 || !WPACKET_put_bytes_u8(pkt
, TLSEXT_STATUSTYPE_ocsp
)
271 /* Sub-packet for the ids */
272 || !WPACKET_start_sub_packet_u16(pkt
)) {
273 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_STATUS_REQUEST
, ERR_R_INTERNAL_ERROR
);
276 for (i
= 0; i
< sk_OCSP_RESPID_num(s
->ext
.ocsp
.ids
); i
++) {
277 unsigned char *idbytes
;
278 OCSP_RESPID
*id
= sk_OCSP_RESPID_value(s
->ext
.ocsp
.ids
, i
);
279 int idlen
= i2d_OCSP_RESPID(id
, NULL
);
282 /* Sub-packet for an individual id */
283 || !WPACKET_sub_allocate_bytes_u16(pkt
, idlen
, &idbytes
)
284 || i2d_OCSP_RESPID(id
, &idbytes
) != idlen
) {
285 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_STATUS_REQUEST
,
286 ERR_R_INTERNAL_ERROR
);
290 if (!WPACKET_close(pkt
)
291 || !WPACKET_start_sub_packet_u16(pkt
)) {
292 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_STATUS_REQUEST
, ERR_R_INTERNAL_ERROR
);
295 if (s
->ext
.ocsp
.exts
) {
296 unsigned char *extbytes
;
297 int extlen
= i2d_X509_EXTENSIONS(s
->ext
.ocsp
.exts
, NULL
);
300 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_STATUS_REQUEST
,
301 ERR_R_INTERNAL_ERROR
);
304 if (!WPACKET_allocate_bytes(pkt
, extlen
, &extbytes
)
305 || i2d_X509_EXTENSIONS(s
->ext
.ocsp
.exts
, &extbytes
)
307 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_STATUS_REQUEST
,
308 ERR_R_INTERNAL_ERROR
);
312 if (!WPACKET_close(pkt
) || !WPACKET_close(pkt
)) {
313 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_STATUS_REQUEST
, ERR_R_INTERNAL_ERROR
);
321 #ifndef OPENSSL_NO_NEXTPROTONEG
322 int tls_construct_ctos_npn(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
323 size_t chainidx
, int *al
)
325 if (s
->ctx
->ext
.npn_select_cb
== NULL
|| !SSL_IS_FIRST_HANDSHAKE(s
))
329 * The client advertises an empty extension to indicate its support
330 * for Next Protocol Negotiation
332 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_next_proto_neg
)
333 || !WPACKET_put_bytes_u16(pkt
, 0)) {
334 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_NPN
, ERR_R_INTERNAL_ERROR
);
342 int tls_construct_ctos_alpn(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
343 size_t chainidx
, int *al
)
345 s
->s3
->alpn_sent
= 0;
347 if (s
->ext
.alpn
== NULL
|| !SSL_IS_FIRST_HANDSHAKE(s
))
350 if (!WPACKET_put_bytes_u16(pkt
,
351 TLSEXT_TYPE_application_layer_protocol_negotiation
)
352 /* Sub-packet ALPN extension */
353 || !WPACKET_start_sub_packet_u16(pkt
)
354 || !WPACKET_sub_memcpy_u16(pkt
, s
->ext
.alpn
, s
->ext
.alpn_len
)
355 || !WPACKET_close(pkt
)) {
356 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_ALPN
, ERR_R_INTERNAL_ERROR
);
359 s
->s3
->alpn_sent
= 1;
365 #ifndef OPENSSL_NO_SRTP
366 int tls_construct_ctos_use_srtp(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
367 X509
*x
, size_t chainidx
, int *al
)
369 STACK_OF(SRTP_PROTECTION_PROFILE
) *clnt
= SSL_get_srtp_profiles(s
);
375 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_use_srtp
)
376 /* Sub-packet for SRTP extension */
377 || !WPACKET_start_sub_packet_u16(pkt
)
378 /* Sub-packet for the protection profile list */
379 || !WPACKET_start_sub_packet_u16(pkt
)) {
380 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_USE_SRTP
, ERR_R_INTERNAL_ERROR
);
384 end
= sk_SRTP_PROTECTION_PROFILE_num(clnt
);
385 for (i
= 0; i
< end
; i
++) {
386 const SRTP_PROTECTION_PROFILE
*prof
=
387 sk_SRTP_PROTECTION_PROFILE_value(clnt
, i
);
389 if (prof
== NULL
|| !WPACKET_put_bytes_u16(pkt
, prof
->id
)) {
390 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_USE_SRTP
, ERR_R_INTERNAL_ERROR
);
394 if (!WPACKET_close(pkt
)
395 /* Add an empty use_mki value */
396 || !WPACKET_put_bytes_u8(pkt
, 0)
397 || !WPACKET_close(pkt
)) {
398 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_USE_SRTP
, ERR_R_INTERNAL_ERROR
);
406 int tls_construct_ctos_etm(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
407 size_t chainidx
, int *al
)
409 if (s
->options
& SSL_OP_NO_ENCRYPT_THEN_MAC
)
412 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_encrypt_then_mac
)
413 || !WPACKET_put_bytes_u16(pkt
, 0)) {
414 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_ETM
, ERR_R_INTERNAL_ERROR
);
421 #ifndef OPENSSL_NO_CT
422 int tls_construct_ctos_sct(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
423 size_t chainidx
, int *al
)
425 if (s
->ct_validation_callback
== NULL
)
428 /* Not defined for client Certificates */
432 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_signed_certificate_timestamp
)
433 || !WPACKET_put_bytes_u16(pkt
, 0)) {
434 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SCT
, ERR_R_INTERNAL_ERROR
);
442 int tls_construct_ctos_ems(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
443 size_t chainidx
, int *al
)
445 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_extended_master_secret
)
446 || !WPACKET_put_bytes_u16(pkt
, 0)) {
447 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_EMS
, ERR_R_INTERNAL_ERROR
);
454 int tls_construct_ctos_supported_versions(SSL
*s
, WPACKET
*pkt
,
455 unsigned int context
, X509
*x
,
456 size_t chainidx
, int *al
)
458 int currv
, min_version
, max_version
, reason
;
460 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_supported_versions
)
461 || !WPACKET_start_sub_packet_u16(pkt
)
462 || !WPACKET_start_sub_packet_u8(pkt
)) {
463 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_VERSIONS
,
464 ERR_R_INTERNAL_ERROR
);
468 reason
= ssl_get_client_min_max_version(s
, &min_version
, &max_version
);
470 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_VERSIONS
, reason
);
475 * TODO(TLS1.3): There is some discussion on the TLS list as to wheter
476 * we should include versions <TLS1.2. For the moment we do. To be
479 for (currv
= max_version
; currv
>= min_version
; currv
--) {
480 /* TODO(TLS1.3): Remove this first if clause prior to release!! */
481 if (currv
== TLS1_3_VERSION
) {
482 if (!WPACKET_put_bytes_u16(pkt
, TLS1_3_VERSION_DRAFT
)) {
483 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_VERSIONS
,
484 ERR_R_INTERNAL_ERROR
);
487 } else if (!WPACKET_put_bytes_u16(pkt
, currv
)) {
488 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_VERSIONS
,
489 ERR_R_INTERNAL_ERROR
);
493 if (!WPACKET_close(pkt
) || !WPACKET_close(pkt
)) {
494 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_VERSIONS
,
495 ERR_R_INTERNAL_ERROR
);
503 * Construct a psk_kex_modes extension. We only have two modes we know about
504 * at this stage, so we send both.
506 int tls_construct_ctos_psk_kex_modes(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
507 X509
*x
, size_t chainidx
, int *al
)
509 #ifndef OPENSSL_NO_TLS1_3
511 * TODO(TLS1.3): Do we want this list to be configurable? For now we always
512 * just send both supported modes
514 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_psk_kex_modes
)
515 || !WPACKET_start_sub_packet_u16(pkt
)
516 || !WPACKET_start_sub_packet_u8(pkt
)
517 || !WPACKET_put_bytes_u8(pkt
, TLSEXT_KEX_MODE_KE_DHE
)
518 || !WPACKET_put_bytes_u8(pkt
, TLSEXT_KEX_MODE_KE
)
519 || !WPACKET_close(pkt
)
520 || !WPACKET_close(pkt
)) {
521 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PSK_KEX_MODES
, ERR_R_INTERNAL_ERROR
);
525 s
->ext
.psk_kex_mode
= TLSEXT_KEX_MODE_FLAG_KE
| TLSEXT_KEX_MODE_FLAG_KE_DHE
;
531 #ifndef OPENSSL_NO_TLS1_3
532 static int add_key_share(SSL
*s
, WPACKET
*pkt
, unsigned int curve_id
)
534 unsigned char *encodedPoint
= NULL
;
535 EVP_PKEY
*key_share_key
= NULL
;
538 key_share_key
= ssl_generate_pkey_curve(curve_id
);
539 if (key_share_key
== NULL
) {
540 SSLerr(SSL_F_ADD_KEY_SHARE
, ERR_R_EVP_LIB
);
544 /* Encode the public key. */
545 encodedlen
= EVP_PKEY_get1_tls_encodedpoint(key_share_key
,
547 if (encodedlen
== 0) {
548 SSLerr(SSL_F_ADD_KEY_SHARE
, ERR_R_EC_LIB
);
549 EVP_PKEY_free(key_share_key
);
553 /* Create KeyShareEntry */
554 if (!WPACKET_put_bytes_u16(pkt
, curve_id
)
555 || !WPACKET_sub_memcpy_u16(pkt
, encodedPoint
, encodedlen
)) {
556 SSLerr(SSL_F_ADD_KEY_SHARE
, ERR_R_INTERNAL_ERROR
);
557 EVP_PKEY_free(key_share_key
);
558 OPENSSL_free(encodedPoint
);
563 * TODO(TLS1.3): When changing to send more than one key_share we're
564 * going to need to be able to save more than one EVP_PKEY. For now
565 * we reuse the existing tmp.pkey
567 s
->s3
->tmp
.pkey
= key_share_key
;
568 s
->s3
->group_id
= curve_id
;
569 OPENSSL_free(encodedPoint
);
575 int tls_construct_ctos_key_share(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
576 X509
*x
, size_t chainidx
, int *al
)
578 #ifndef OPENSSL_NO_TLS1_3
579 size_t i
, num_curves
= 0;
580 const unsigned char *pcurves
= NULL
;
581 unsigned int curve_id
= 0;
583 /* key_share extension */
584 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_key_share
)
585 /* Extension data sub-packet */
586 || !WPACKET_start_sub_packet_u16(pkt
)
587 /* KeyShare list sub-packet */
588 || !WPACKET_start_sub_packet_u16(pkt
)) {
589 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_KEY_SHARE
, ERR_R_INTERNAL_ERROR
);
593 pcurves
= s
->ext
.supportedgroups
;
594 if (!tls1_get_curvelist(s
, 0, &pcurves
, &num_curves
)) {
595 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_KEY_SHARE
, ERR_R_INTERNAL_ERROR
);
599 if (s
->s3
->tmp
.pkey
!= NULL
) {
600 /* Shouldn't happen! */
601 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_KEY_SHARE
, ERR_R_INTERNAL_ERROR
);
606 * TODO(TLS1.3): Make the number of key_shares sent configurable. For
609 if (s
->s3
->group_id
!= 0) {
610 curve_id
= s
->s3
->group_id
;
612 for (i
= 0; i
< num_curves
; i
++, pcurves
+= 2) {
614 if (!tls_curve_allowed(s
, pcurves
, SSL_SECOP_CURVE_SUPPORTED
))
617 curve_id
= (pcurves
[0] << 8) | pcurves
[1];
623 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_KEY_SHARE
, SSL_R_NO_SUITABLE_KEY_SHARE
);
627 if (!add_key_share(s
, pkt
, curve_id
))
630 if (!WPACKET_close(pkt
) || !WPACKET_close(pkt
)) {
631 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_KEY_SHARE
, ERR_R_INTERNAL_ERROR
);
639 #define F5_WORKAROUND_MIN_MSG_LEN 0xff
640 #define F5_WORKAROUND_MAX_MSG_LEN 0x200
642 int tls_construct_ctos_padding(SSL
*s
, WPACKET
*pkt
, unsigned int context
,
643 X509
*x
, size_t chainidx
, int *al
)
645 unsigned char *padbytes
;
648 if ((s
->options
& SSL_OP_TLSEXT_PADDING
) == 0)
652 * Add padding to workaround bugs in F5 terminators. See
653 * https://tools.ietf.org/html/draft-agl-tls-padding-03 NB: because this
654 * code calculates the length of all existing extensions it MUST always
657 if (!WPACKET_get_total_written(pkt
, &hlen
)) {
658 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PADDING
, ERR_R_INTERNAL_ERROR
);
662 if (hlen
> F5_WORKAROUND_MIN_MSG_LEN
&& hlen
< F5_WORKAROUND_MAX_MSG_LEN
) {
663 /* Calculate the amond of padding we need to add */
664 hlen
= F5_WORKAROUND_MAX_MSG_LEN
- hlen
;
667 * Take off the size of extension header itself (2 bytes for type and
668 * 2 bytes for length bytes)
675 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_padding
)
676 || !WPACKET_sub_allocate_bytes_u16(pkt
, hlen
, &padbytes
)) {
677 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PADDING
, ERR_R_INTERNAL_ERROR
);
680 memset(padbytes
, 0, hlen
);
687 * Construct the pre_shared_key extension
689 int tls_construct_ctos_psk(SSL
*s
, WPACKET
*pkt
, unsigned int context
, X509
*x
,
690 size_t chainidx
, int *al
)
692 #ifndef OPENSSL_NO_TLS1_3
693 uint32_t now
, agesec
, agems
;
694 size_t hashsize
, binderoffset
, msglen
;
695 unsigned char *binder
= NULL
, *msgstart
= NULL
;
699 s
->session
->ext
.tick_identity
= TLSEXT_PSK_BAD_IDENTITY
;
702 * If this is an incompatible or new session then we have nothing to resume
703 * so don't add this extension.
705 if (s
->session
->ssl_version
!= TLS1_3_VERSION
706 || s
->session
->ext
.ticklen
== 0)
709 if (s
->session
->cipher
== NULL
) {
710 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PSK
, ERR_R_INTERNAL_ERROR
);
714 md
= ssl_md(s
->session
->cipher
->algorithm2
);
716 /* Don't recognise this cipher so we can't use the session. Ignore it */
721 * Technically the C standard just says time() returns a time_t and says
722 * nothing about the encoding of that type. In practice most implementations
723 * follow POSIX which holds it as an integral type in seconds since epoch.
724 * We've already made the assumption that we can do this in multiple places
725 * in the code, so portability shouldn't be an issue.
727 now
= (uint32_t)time(NULL
);
728 agesec
= now
- (uint32_t)s
->session
->time
;
730 if (s
->session
->ext
.tick_lifetime_hint
< agesec
) {
731 /* Ticket is too old. Ignore it. */
736 * Calculate age in ms. We're just doing it to nearest second. Should be
739 agems
= agesec
* (uint32_t)1000;
741 if (agesec
!= 0 && agems
/ (uint32_t)1000 != agesec
) {
743 * Overflow. Shouldn't happen unless this is a *really* old session. If
744 * so we just ignore it.
750 * Obfuscate the age. Overflow here is fine, this addition is supposed to
753 agems
+= s
->session
->ext
.tick_age_add
;
755 hashsize
= EVP_MD_size(md
);
757 /* Create the extension, but skip over the binder for now */
758 if (!WPACKET_put_bytes_u16(pkt
, TLSEXT_TYPE_psk
)
759 || !WPACKET_start_sub_packet_u16(pkt
)
760 || !WPACKET_start_sub_packet_u16(pkt
)
761 || !WPACKET_sub_memcpy_u16(pkt
, s
->session
->ext
.tick
,
762 s
->session
->ext
.ticklen
)
763 || !WPACKET_put_bytes_u32(pkt
, agems
)
764 || !WPACKET_close(pkt
)
765 || !WPACKET_get_total_written(pkt
, &binderoffset
)
766 || !WPACKET_start_sub_packet_u16(pkt
)
767 || !WPACKET_sub_allocate_bytes_u8(pkt
, hashsize
, &binder
)
768 || !WPACKET_close(pkt
)
769 || !WPACKET_close(pkt
)
770 || !WPACKET_get_total_written(pkt
, &msglen
)
772 * We need to fill in all the sub-packet lengths now so we can
773 * calculate the HMAC of the message up to the binders
775 || !WPACKET_fill_lengths(pkt
)) {
776 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PSK
, ERR_R_INTERNAL_ERROR
);
780 msgstart
= WPACKET_get_curr(pkt
) - msglen
;
782 if (tls_psk_do_binder(s
, md
, msgstart
, binderoffset
, NULL
, binder
,
783 s
->session
, 1) != 1) {
784 SSLerr(SSL_F_TLS_CONSTRUCT_CTOS_PSK
, ERR_R_INTERNAL_ERROR
);
788 s
->session
->ext
.tick_identity
= 0;
799 * Parse the server's renegotiation binding and abort if it's not right
801 int tls_parse_stoc_renegotiate(SSL
*s
, PACKET
*pkt
, unsigned int context
,
802 X509
*x
, size_t chainidx
, int *al
)
804 size_t expected_len
= s
->s3
->previous_client_finished_len
805 + s
->s3
->previous_server_finished_len
;
807 const unsigned char *data
;
809 /* Check for logic errors */
810 assert(expected_len
== 0 || s
->s3
->previous_client_finished_len
!= 0);
811 assert(expected_len
== 0 || s
->s3
->previous_server_finished_len
!= 0);
813 /* Parse the length byte */
814 if (!PACKET_get_1_len(pkt
, &ilen
)) {
815 SSLerr(SSL_F_TLS_PARSE_STOC_RENEGOTIATE
,
816 SSL_R_RENEGOTIATION_ENCODING_ERR
);
817 *al
= SSL_AD_ILLEGAL_PARAMETER
;
821 /* Consistency check */
822 if (PACKET_remaining(pkt
) != ilen
) {
823 SSLerr(SSL_F_TLS_PARSE_STOC_RENEGOTIATE
,
824 SSL_R_RENEGOTIATION_ENCODING_ERR
);
825 *al
= SSL_AD_ILLEGAL_PARAMETER
;
829 /* Check that the extension matches */
830 if (ilen
!= expected_len
) {
831 SSLerr(SSL_F_TLS_PARSE_STOC_RENEGOTIATE
,
832 SSL_R_RENEGOTIATION_MISMATCH
);
833 *al
= SSL_AD_HANDSHAKE_FAILURE
;
837 if (!PACKET_get_bytes(pkt
, &data
, s
->s3
->previous_client_finished_len
)
838 || memcmp(data
, s
->s3
->previous_client_finished
,
839 s
->s3
->previous_client_finished_len
) != 0) {
840 SSLerr(SSL_F_TLS_PARSE_STOC_RENEGOTIATE
,
841 SSL_R_RENEGOTIATION_MISMATCH
);
842 *al
= SSL_AD_HANDSHAKE_FAILURE
;
846 if (!PACKET_get_bytes(pkt
, &data
, s
->s3
->previous_server_finished_len
)
847 || memcmp(data
, s
->s3
->previous_server_finished
,
848 s
->s3
->previous_server_finished_len
) != 0) {
849 SSLerr(SSL_F_TLS_PARSE_STOC_RENEGOTIATE
,
850 SSL_R_RENEGOTIATION_MISMATCH
);
851 *al
= SSL_AD_ILLEGAL_PARAMETER
;
854 s
->s3
->send_connection_binding
= 1;
859 int tls_parse_stoc_server_name(SSL
*s
, PACKET
*pkt
, unsigned int context
,
860 X509
*x
, size_t chainidx
, int *al
)
862 if (s
->ext
.hostname
== NULL
|| PACKET_remaining(pkt
) > 0) {
863 *al
= SSL_AD_UNRECOGNIZED_NAME
;
868 if (s
->session
->ext
.hostname
!= NULL
) {
869 *al
= SSL_AD_INTERNAL_ERROR
;
872 s
->session
->ext
.hostname
= OPENSSL_strdup(s
->ext
.hostname
);
873 if (s
->session
->ext
.hostname
== NULL
) {
874 *al
= SSL_AD_INTERNAL_ERROR
;
882 #ifndef OPENSSL_NO_EC
883 int tls_parse_stoc_ec_pt_formats(SSL
*s
, PACKET
*pkt
, unsigned int context
,
884 X509
*x
, size_t chainidx
, int *al
)
886 unsigned int ecpointformats_len
;
887 PACKET ecptformatlist
;
889 if (!PACKET_as_length_prefixed_1(pkt
, &ecptformatlist
)) {
890 *al
= SSL_AD_DECODE_ERROR
;
894 ecpointformats_len
= PACKET_remaining(&ecptformatlist
);
895 s
->session
->ext
.ecpointformats_len
= 0;
897 OPENSSL_free(s
->session
->ext
.ecpointformats
);
898 s
->session
->ext
.ecpointformats
= OPENSSL_malloc(ecpointformats_len
);
899 if (s
->session
->ext
.ecpointformats
== NULL
) {
900 *al
= SSL_AD_INTERNAL_ERROR
;
904 s
->session
->ext
.ecpointformats_len
= ecpointformats_len
;
906 if (!PACKET_copy_bytes(&ecptformatlist
,
907 s
->session
->ext
.ecpointformats
,
908 ecpointformats_len
)) {
909 *al
= SSL_AD_INTERNAL_ERROR
;
918 int tls_parse_stoc_session_ticket(SSL
*s
, PACKET
*pkt
, unsigned int context
,
919 X509
*x
, size_t chainidx
, int *al
)
921 if (s
->ext
.session_ticket_cb
!= NULL
&&
922 !s
->ext
.session_ticket_cb(s
, PACKET_data(pkt
),
923 PACKET_remaining(pkt
),
924 s
->ext
.session_ticket_cb_arg
)) {
925 *al
= SSL_AD_INTERNAL_ERROR
;
929 if (!tls_use_ticket(s
) || PACKET_remaining(pkt
) > 0) {
930 *al
= SSL_AD_UNSUPPORTED_EXTENSION
;
934 s
->ext
.ticket_expected
= 1;
939 #ifndef OPENSSL_NO_OCSP
940 int tls_parse_stoc_status_request(SSL
*s
, PACKET
*pkt
, unsigned int context
,
941 X509
*x
, size_t chainidx
, int *al
)
944 * MUST only be sent if we've requested a status
945 * request message. In TLS <= 1.2 it must also be empty.
947 if (s
->ext
.status_type
== TLSEXT_STATUSTYPE_nothing
948 || (!SSL_IS_TLS13(s
) && PACKET_remaining(pkt
) > 0)) {
949 *al
= SSL_AD_UNSUPPORTED_EXTENSION
;
953 if (SSL_IS_TLS13(s
)) {
954 /* We only know how to handle this if it's for the first Certificate in
955 * the chain. We ignore any other repsonses.
959 return tls_process_cert_status_body(s
, pkt
, al
);
962 /* Set flag to expect CertificateStatus message */
963 s
->ext
.status_expected
= 1;
970 #ifndef OPENSSL_NO_CT
971 int tls_parse_stoc_sct(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
972 size_t chainidx
, int *al
)
975 * Only take it if we asked for it - i.e if there is no CT validation
976 * callback set, then a custom extension MAY be processing it, so we
977 * need to let control continue to flow to that.
979 if (s
->ct_validation_callback
!= NULL
) {
980 size_t size
= PACKET_remaining(pkt
);
982 /* Simply copy it off for later processing */
983 OPENSSL_free(s
->ext
.scts
);
986 s
->ext
.scts_len
= size
;
988 s
->ext
.scts
= OPENSSL_malloc(size
);
989 if (s
->ext
.scts
== NULL
990 || !PACKET_copy_bytes(pkt
, s
->ext
.scts
, size
)) {
991 *al
= SSL_AD_INTERNAL_ERROR
;
996 if (custom_ext_parse(s
, 0, TLSEXT_TYPE_signed_certificate_timestamp
,
997 PACKET_data(pkt
), PACKET_remaining(pkt
), al
) <= 0)
1006 #ifndef OPENSSL_NO_NEXTPROTONEG
1008 * ssl_next_proto_validate validates a Next Protocol Negotiation block. No
1009 * elements of zero length are allowed and the set of elements must exactly
1010 * fill the length of the block. Returns 1 on success or 0 on failure.
1012 static int ssl_next_proto_validate(PACKET
*pkt
)
1014 PACKET tmp_protocol
;
1016 while (PACKET_remaining(pkt
)) {
1017 if (!PACKET_get_length_prefixed_1(pkt
, &tmp_protocol
)
1018 || PACKET_remaining(&tmp_protocol
) == 0)
1025 int tls_parse_stoc_npn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
1026 size_t chainidx
, int *al
)
1028 unsigned char *selected
;
1029 unsigned char selected_len
;
1032 /* Check if we are in a renegotiation. If so ignore this extension */
1033 if (!SSL_IS_FIRST_HANDSHAKE(s
))
1036 /* We must have requested it. */
1037 if (s
->ctx
->ext
.npn_select_cb
== NULL
) {
1038 *al
= SSL_AD_UNSUPPORTED_EXTENSION
;
1042 /* The data must be valid */
1044 if (!ssl_next_proto_validate(&tmppkt
)) {
1045 *al
= SSL_AD_DECODE_ERROR
;
1048 if (s
->ctx
->ext
.npn_select_cb(s
, &selected
, &selected_len
,
1050 PACKET_remaining(pkt
),
1051 s
->ctx
->ext
.npn_select_cb_arg
) !=
1052 SSL_TLSEXT_ERR_OK
) {
1053 *al
= SSL_AD_INTERNAL_ERROR
;
1058 * Could be non-NULL if server has sent multiple NPN extensions in
1059 * a single Serverhello
1061 OPENSSL_free(s
->ext
.npn
);
1062 s
->ext
.npn
= OPENSSL_malloc(selected_len
);
1063 if (s
->ext
.npn
== NULL
) {
1064 *al
= SSL_AD_INTERNAL_ERROR
;
1068 memcpy(s
->ext
.npn
, selected
, selected_len
);
1069 s
->ext
.npn_len
= selected_len
;
1070 s
->s3
->npn_seen
= 1;
1076 int tls_parse_stoc_alpn(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
1077 size_t chainidx
, int *al
)
1081 /* We must have requested it. */
1082 if (!s
->s3
->alpn_sent
) {
1083 *al
= SSL_AD_UNSUPPORTED_EXTENSION
;
1087 * The extension data consists of:
1088 * uint16 list_length
1089 * uint8 proto_length;
1090 * uint8 proto[proto_length];
1092 if (!PACKET_get_net_2_len(pkt
, &len
)
1093 || PACKET_remaining(pkt
) != len
|| !PACKET_get_1_len(pkt
, &len
)
1094 || PACKET_remaining(pkt
) != len
) {
1095 *al
= SSL_AD_DECODE_ERROR
;
1098 OPENSSL_free(s
->s3
->alpn_selected
);
1099 s
->s3
->alpn_selected
= OPENSSL_malloc(len
);
1100 if (s
->s3
->alpn_selected
== NULL
) {
1101 *al
= SSL_AD_INTERNAL_ERROR
;
1104 if (!PACKET_copy_bytes(pkt
, s
->s3
->alpn_selected
, len
)) {
1105 *al
= SSL_AD_DECODE_ERROR
;
1108 s
->s3
->alpn_selected_len
= len
;
1113 #ifndef OPENSSL_NO_SRTP
1114 int tls_parse_stoc_use_srtp(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
1115 size_t chainidx
, int *al
)
1117 unsigned int id
, ct
, mki
;
1119 STACK_OF(SRTP_PROTECTION_PROFILE
) *clnt
;
1120 SRTP_PROTECTION_PROFILE
*prof
;
1122 if (!PACKET_get_net_2(pkt
, &ct
) || ct
!= 2
1123 || !PACKET_get_net_2(pkt
, &id
)
1124 || !PACKET_get_1(pkt
, &mki
)
1125 || PACKET_remaining(pkt
) != 0) {
1126 SSLerr(SSL_F_TLS_PARSE_STOC_USE_SRTP
,
1127 SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST
);
1128 *al
= SSL_AD_DECODE_ERROR
;
1133 /* Must be no MKI, since we never offer one */
1134 SSLerr(SSL_F_TLS_PARSE_STOC_USE_SRTP
, SSL_R_BAD_SRTP_MKI_VALUE
);
1135 *al
= SSL_AD_ILLEGAL_PARAMETER
;
1139 /* Throw an error if the server gave us an unsolicited extension */
1140 clnt
= SSL_get_srtp_profiles(s
);
1142 SSLerr(SSL_F_TLS_PARSE_STOC_USE_SRTP
, SSL_R_NO_SRTP_PROFILES
);
1143 *al
= SSL_AD_DECODE_ERROR
;
1148 * Check to see if the server gave us something we support (and
1149 * presumably offered)
1151 for (i
= 0; i
< sk_SRTP_PROTECTION_PROFILE_num(clnt
); i
++) {
1152 prof
= sk_SRTP_PROTECTION_PROFILE_value(clnt
, i
);
1154 if (prof
->id
== id
) {
1155 s
->srtp_profile
= prof
;
1161 SSLerr(SSL_F_TLS_PARSE_STOC_USE_SRTP
,
1162 SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST
);
1163 *al
= SSL_AD_DECODE_ERROR
;
1168 int tls_parse_stoc_etm(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
1169 size_t chainidx
, int *al
)
1171 /* Ignore if inappropriate ciphersuite */
1172 if (!(s
->options
& SSL_OP_NO_ENCRYPT_THEN_MAC
)
1173 && s
->s3
->tmp
.new_cipher
->algorithm_mac
!= SSL_AEAD
1174 && s
->s3
->tmp
.new_cipher
->algorithm_enc
!= SSL_RC4
)
1175 s
->s3
->flags
|= TLS1_FLAGS_ENCRYPT_THEN_MAC
;
1180 int tls_parse_stoc_ems(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
1181 size_t chainidx
, int *al
)
1183 s
->s3
->flags
|= TLS1_FLAGS_RECEIVED_EXTMS
;
1185 s
->session
->flags
|= SSL_SESS_FLAG_EXTMS
;
1190 int tls_parse_stoc_key_share(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
1191 size_t chainidx
, int *al
)
1193 #ifndef OPENSSL_NO_TLS1_3
1194 unsigned int group_id
;
1196 EVP_PKEY
*ckey
= s
->s3
->tmp
.pkey
, *skey
= NULL
;
1200 *al
= SSL_AD_INTERNAL_ERROR
;
1201 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, ERR_R_INTERNAL_ERROR
);
1205 if (!PACKET_get_net_2(pkt
, &group_id
)) {
1206 *al
= SSL_AD_HANDSHAKE_FAILURE
;
1207 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, SSL_R_LENGTH_MISMATCH
);
1211 if ((context
& EXT_TLS1_3_HELLO_RETRY_REQUEST
) != 0) {
1212 unsigned const char *pcurves
= NULL
;
1213 size_t i
, num_curves
;
1215 if (PACKET_remaining(pkt
) != 0) {
1216 *al
= SSL_AD_HANDSHAKE_FAILURE
;
1217 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, SSL_R_LENGTH_MISMATCH
);
1222 * It is an error if the HelloRetryRequest wants a key_share that we
1223 * already sent in the first ClientHello
1225 if (group_id
== s
->s3
->group_id
) {
1226 *al
= SSL_AD_ILLEGAL_PARAMETER
;
1227 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, SSL_R_BAD_KEY_SHARE
);
1231 /* Validate the selected group is one we support */
1232 pcurves
= s
->ext
.supportedgroups
;
1233 if (!tls1_get_curvelist(s
, 0, &pcurves
, &num_curves
)) {
1234 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, ERR_R_INTERNAL_ERROR
);
1237 for (i
= 0; i
< num_curves
; i
++, pcurves
+= 2) {
1238 if (group_id
== (unsigned int)((pcurves
[0] << 8) | pcurves
[1]))
1242 || !tls_curve_allowed(s
, pcurves
, SSL_SECOP_CURVE_SUPPORTED
)) {
1243 *al
= SSL_AD_ILLEGAL_PARAMETER
;
1244 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, SSL_R_BAD_KEY_SHARE
);
1248 s
->s3
->group_id
= group_id
;
1249 EVP_PKEY_free(s
->s3
->tmp
.pkey
);
1250 s
->s3
->tmp
.pkey
= NULL
;
1254 if (group_id
!= s
->s3
->group_id
) {
1256 * This isn't for the group that we sent in the original
1259 *al
= SSL_AD_HANDSHAKE_FAILURE
;
1260 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, SSL_R_BAD_KEY_SHARE
);
1264 if (!PACKET_as_length_prefixed_2(pkt
, &encoded_pt
)
1265 || PACKET_remaining(&encoded_pt
) == 0) {
1266 *al
= SSL_AD_DECODE_ERROR
;
1267 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, SSL_R_LENGTH_MISMATCH
);
1271 skey
= ssl_generate_pkey(ckey
);
1273 *al
= SSL_AD_INTERNAL_ERROR
;
1274 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, ERR_R_MALLOC_FAILURE
);
1277 if (!EVP_PKEY_set1_tls_encodedpoint(skey
, PACKET_data(&encoded_pt
),
1278 PACKET_remaining(&encoded_pt
))) {
1279 *al
= SSL_AD_DECODE_ERROR
;
1280 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, SSL_R_BAD_ECPOINT
);
1281 EVP_PKEY_free(skey
);
1285 if (ssl_derive(s
, ckey
, skey
, 1) == 0) {
1286 *al
= SSL_AD_INTERNAL_ERROR
;
1287 SSLerr(SSL_F_TLS_PARSE_STOC_KEY_SHARE
, ERR_R_INTERNAL_ERROR
);
1288 EVP_PKEY_free(skey
);
1291 EVP_PKEY_free(skey
);
1297 int tls_parse_stoc_psk(SSL
*s
, PACKET
*pkt
, unsigned int context
, X509
*x
,
1298 size_t chainidx
, int *al
)
1300 #ifndef OPENSSL_NO_TLS1_3
1301 unsigned int identity
;
1303 if (!PACKET_get_net_2(pkt
, &identity
) || PACKET_remaining(pkt
) != 0) {
1304 *al
= SSL_AD_HANDSHAKE_FAILURE
;
1305 SSLerr(SSL_F_TLS_PARSE_STOC_PSK
, SSL_R_LENGTH_MISMATCH
);
1309 if (s
->session
->ext
.tick_identity
!= (int)identity
) {
1310 *al
= SSL_AD_HANDSHAKE_FAILURE
;
1311 SSLerr(SSL_F_TLS_PARSE_STOC_PSK
, SSL_R_BAD_PSK_IDENTITY
);