xref: /dragonfly/contrib/wpa_supplicant/src/crypto/tls_internal.c (revision 3a84a4273475ed07d0ab1c2dfeffdfedef35d9cd)
1 /*
2  * TLS interface functions and an internal TLS implementation
3  * Copyright (c) 2004-2019, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  *
8  * This file interface functions for hostapd/wpa_supplicant to use the
9  * integrated TLSv1 implementation.
10  */
11 
12 #include "includes.h"
13 
14 #include "common.h"
15 #include "tls.h"
16 #include "tls/tlsv1_client.h"
17 #include "tls/tlsv1_server.h"
18 
19 
20 static int tls_ref_count = 0;
21 
22 struct tls_global {
23           int server;
24           struct tlsv1_credentials *server_cred;
25           int check_crl;
26 
27           void (*event_cb)(void *ctx, enum tls_event ev,
28                                union tls_event_data *data);
29           void *cb_ctx;
30           int cert_in_cb;
31 };
32 
33 struct tls_connection {
34           struct tlsv1_client *client;
35           struct tlsv1_server *server;
36           struct tls_global *global;
37 };
38 
39 
tls_init(const struct tls_config * conf)40 void * tls_init(const struct tls_config *conf)
41 {
42           struct tls_global *global;
43 
44           if (tls_ref_count == 0) {
45 #ifdef CONFIG_TLS_INTERNAL_CLIENT
46                     if (tlsv1_client_global_init())
47                               return NULL;
48 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
49 #ifdef CONFIG_TLS_INTERNAL_SERVER
50                     if (tlsv1_server_global_init())
51                               return NULL;
52 #endif /* CONFIG_TLS_INTERNAL_SERVER */
53           }
54           tls_ref_count++;
55 
56           global = os_zalloc(sizeof(*global));
57           if (global == NULL)
58                     return NULL;
59           if (conf) {
60                     global->event_cb = conf->event_cb;
61                     global->cb_ctx = conf->cb_ctx;
62                     global->cert_in_cb = conf->cert_in_cb;
63           }
64 
65           return global;
66 }
67 
tls_deinit(void * ssl_ctx)68 void tls_deinit(void *ssl_ctx)
69 {
70           struct tls_global *global = ssl_ctx;
71           tls_ref_count--;
72           if (tls_ref_count == 0) {
73 #ifdef CONFIG_TLS_INTERNAL_CLIENT
74                     tlsv1_client_global_deinit();
75 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
76 #ifdef CONFIG_TLS_INTERNAL_SERVER
77                     tlsv1_server_global_deinit();
78 #endif /* CONFIG_TLS_INTERNAL_SERVER */
79           }
80 #ifdef CONFIG_TLS_INTERNAL_SERVER
81           tlsv1_cred_free(global->server_cred);
82 #endif /* CONFIG_TLS_INTERNAL_SERVER */
83           os_free(global);
84 }
85 
86 
tls_get_errors(void * tls_ctx)87 int tls_get_errors(void *tls_ctx)
88 {
89           return 0;
90 }
91 
92 
tls_connection_init(void * tls_ctx)93 struct tls_connection * tls_connection_init(void *tls_ctx)
94 {
95           struct tls_connection *conn;
96           struct tls_global *global = tls_ctx;
97 
98           conn = os_zalloc(sizeof(*conn));
99           if (conn == NULL)
100                     return NULL;
101           conn->global = global;
102 
103 #ifdef CONFIG_TLS_INTERNAL_CLIENT
104           if (!global->server) {
105                     conn->client = tlsv1_client_init();
106                     if (conn->client == NULL) {
107                               os_free(conn);
108                               return NULL;
109                     }
110                     tlsv1_client_set_cb(conn->client, global->event_cb,
111                                             global->cb_ctx, global->cert_in_cb);
112           }
113 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
114 #ifdef CONFIG_TLS_INTERNAL_SERVER
115           if (global->server) {
116                     conn->server = tlsv1_server_init(global->server_cred);
117                     if (conn->server == NULL) {
118                               os_free(conn);
119                               return NULL;
120                     }
121           }
122 #endif /* CONFIG_TLS_INTERNAL_SERVER */
123 
124           return conn;
125 }
126 
127 
128 #ifdef CONFIG_TESTING_OPTIONS
129 #ifdef CONFIG_TLS_INTERNAL_SERVER
tls_connection_set_test_flags(struct tls_connection * conn,u32 flags)130 void tls_connection_set_test_flags(struct tls_connection *conn, u32 flags)
131 {
132           if (conn->server)
133                     tlsv1_server_set_test_flags(conn->server, flags);
134 }
135 #endif /* CONFIG_TLS_INTERNAL_SERVER */
136 #endif /* CONFIG_TESTING_OPTIONS */
137 
138 
tls_connection_set_log_cb(struct tls_connection * conn,void (* log_cb)(void * ctx,const char * msg),void * ctx)139 void tls_connection_set_log_cb(struct tls_connection *conn,
140                                      void (*log_cb)(void *ctx, const char *msg),
141                                      void *ctx)
142 {
143 #ifdef CONFIG_TLS_INTERNAL_SERVER
144           if (conn->server)
145                     tlsv1_server_set_log_cb(conn->server, log_cb, ctx);
146 #endif /* CONFIG_TLS_INTERNAL_SERVER */
147 }
148 
149 
tls_connection_deinit(void * tls_ctx,struct tls_connection * conn)150 void tls_connection_deinit(void *tls_ctx, struct tls_connection *conn)
151 {
152           if (conn == NULL)
153                     return;
154 #ifdef CONFIG_TLS_INTERNAL_CLIENT
155           if (conn->client)
156                     tlsv1_client_deinit(conn->client);
157 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
158 #ifdef CONFIG_TLS_INTERNAL_SERVER
159           if (conn->server)
160                     tlsv1_server_deinit(conn->server);
161 #endif /* CONFIG_TLS_INTERNAL_SERVER */
162           os_free(conn);
163 }
164 
165 
tls_connection_established(void * tls_ctx,struct tls_connection * conn)166 int tls_connection_established(void *tls_ctx, struct tls_connection *conn)
167 {
168 #ifdef CONFIG_TLS_INTERNAL_CLIENT
169           if (conn->client)
170                     return tlsv1_client_established(conn->client);
171 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
172 #ifdef CONFIG_TLS_INTERNAL_SERVER
173           if (conn->server)
174                     return tlsv1_server_established(conn->server);
175 #endif /* CONFIG_TLS_INTERNAL_SERVER */
176           return 0;
177 }
178 
179 
tls_connection_peer_serial_num(void * tls_ctx,struct tls_connection * conn)180 char * tls_connection_peer_serial_num(void *tls_ctx,
181                                               struct tls_connection *conn)
182 {
183           /* TODO */
184           return NULL;
185 }
186 
187 
tls_connection_shutdown(void * tls_ctx,struct tls_connection * conn)188 int tls_connection_shutdown(void *tls_ctx, struct tls_connection *conn)
189 {
190 #ifdef CONFIG_TLS_INTERNAL_CLIENT
191           if (conn->client)
192                     return tlsv1_client_shutdown(conn->client);
193 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
194 #ifdef CONFIG_TLS_INTERNAL_SERVER
195           if (conn->server)
196                     return tlsv1_server_shutdown(conn->server);
197 #endif /* CONFIG_TLS_INTERNAL_SERVER */
198           return -1;
199 }
200 
201 
tls_connection_set_params(void * tls_ctx,struct tls_connection * conn,const struct tls_connection_params * params)202 int tls_connection_set_params(void *tls_ctx, struct tls_connection *conn,
203                                     const struct tls_connection_params *params)
204 {
205 #ifdef CONFIG_TLS_INTERNAL_CLIENT
206           struct tlsv1_credentials *cred;
207 
208           if (conn->client == NULL)
209                     return -1;
210 
211           if (params->flags & TLS_CONN_EXT_CERT_CHECK) {
212                     wpa_printf(MSG_INFO,
213                                  "TLS: tls_ext_cert_check=1 not supported");
214                     return -1;
215           }
216 
217           cred = tlsv1_cred_alloc();
218           if (cred == NULL)
219                     return -1;
220 
221           if (params->subject_match) {
222                     wpa_printf(MSG_INFO, "TLS: subject_match not supported");
223                     tlsv1_cred_free(cred);
224                     return -1;
225           }
226 
227           if (params->altsubject_match) {
228                     wpa_printf(MSG_INFO, "TLS: altsubject_match not supported");
229                     tlsv1_cred_free(cred);
230                     return -1;
231           }
232 
233           if (params->suffix_match) {
234                     wpa_printf(MSG_INFO, "TLS: suffix_match not supported");
235                     tlsv1_cred_free(cred);
236                     return -1;
237           }
238 
239           if (params->domain_match) {
240                     wpa_printf(MSG_INFO, "TLS: domain_match not supported");
241                     tlsv1_cred_free(cred);
242                     return -1;
243           }
244 
245           if (params->openssl_ciphers) {
246                     wpa_printf(MSG_INFO, "TLS: openssl_ciphers not supported");
247                     tlsv1_cred_free(cred);
248                     return -1;
249           }
250 
251           if (params->openssl_ecdh_curves) {
252                     wpa_printf(MSG_INFO, "TLS: openssl_ecdh_curves not supported");
253                     tlsv1_cred_free(cred);
254                     return -1;
255           }
256 
257           if (tlsv1_set_ca_cert(cred, params->ca_cert,
258                                     params->ca_cert_blob, params->ca_cert_blob_len,
259                                     params->ca_path)) {
260                     wpa_printf(MSG_INFO, "TLS: Failed to configure trusted CA "
261                                  "certificates");
262                     tlsv1_cred_free(cred);
263                     return -1;
264           }
265 
266           if (tlsv1_set_cert(cred, params->client_cert,
267                                  params->client_cert_blob,
268                                  params->client_cert_blob_len)) {
269                     wpa_printf(MSG_INFO, "TLS: Failed to configure client "
270                                  "certificate");
271                     tlsv1_cred_free(cred);
272                     return -1;
273           }
274 
275           if (tlsv1_set_private_key(cred, params->private_key,
276                                           params->private_key_passwd,
277                                           params->private_key_blob,
278                                           params->private_key_blob_len)) {
279                     wpa_printf(MSG_INFO, "TLS: Failed to load private key");
280                     tlsv1_cred_free(cred);
281                     return -1;
282           }
283 
284           if (tlsv1_set_dhparams(cred, params->dh_file, params->dh_blob,
285                                      params->dh_blob_len)) {
286                     wpa_printf(MSG_INFO, "TLS: Failed to load DH parameters");
287                     tlsv1_cred_free(cred);
288                     return -1;
289           }
290 
291           if (tlsv1_client_set_cred(conn->client, cred) < 0) {
292                     tlsv1_cred_free(cred);
293                     return -1;
294           }
295 
296           tlsv1_client_set_flags(conn->client, params->flags);
297 
298           return 0;
299 #else /* CONFIG_TLS_INTERNAL_CLIENT */
300           return -1;
301 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
302 }
303 
304 
tls_global_set_params(void * tls_ctx,const struct tls_connection_params * params)305 int tls_global_set_params(void *tls_ctx,
306                                 const struct tls_connection_params *params)
307 {
308 #ifdef CONFIG_TLS_INTERNAL_SERVER
309           struct tls_global *global = tls_ctx;
310           struct tlsv1_credentials *cred;
311 
312           if (params->check_cert_subject)
313                     return -1; /* not yet supported */
314 
315           /* Currently, global parameters are only set when running in server
316            * mode. */
317           global->server = 1;
318           tlsv1_cred_free(global->server_cred);
319           global->server_cred = cred = tlsv1_cred_alloc();
320           if (cred == NULL)
321                     return -1;
322 
323           if (tlsv1_set_ca_cert(cred, params->ca_cert, params->ca_cert_blob,
324                                     params->ca_cert_blob_len, params->ca_path)) {
325                     wpa_printf(MSG_INFO, "TLS: Failed to configure trusted CA "
326                                  "certificates");
327                     return -1;
328           }
329 
330           if (tlsv1_set_cert(cred, params->client_cert, params->client_cert_blob,
331                                  params->client_cert_blob_len)) {
332                     wpa_printf(MSG_INFO, "TLS: Failed to configure server "
333                                  "certificate");
334                     return -1;
335           }
336 
337           if (tlsv1_set_private_key(cred, params->private_key,
338                                           params->private_key_passwd,
339                                           params->private_key_blob,
340                                           params->private_key_blob_len)) {
341                     wpa_printf(MSG_INFO, "TLS: Failed to load private key");
342                     return -1;
343           }
344 
345           if (tlsv1_set_dhparams(cred, params->dh_file, params->dh_blob,
346                                      params->dh_blob_len)) {
347                     wpa_printf(MSG_INFO, "TLS: Failed to load DH parameters");
348                     return -1;
349           }
350 
351           if (params->ocsp_stapling_response)
352                     cred->ocsp_stapling_response =
353                               os_strdup(params->ocsp_stapling_response);
354           if (params->ocsp_stapling_response_multi)
355                     cred->ocsp_stapling_response_multi =
356                               os_strdup(params->ocsp_stapling_response_multi);
357 
358           return 0;
359 #else /* CONFIG_TLS_INTERNAL_SERVER */
360           return -1;
361 #endif /* CONFIG_TLS_INTERNAL_SERVER */
362 }
363 
364 
tls_global_set_verify(void * tls_ctx,int check_crl,int strict)365 int tls_global_set_verify(void *tls_ctx, int check_crl, int strict)
366 {
367           struct tls_global *global = tls_ctx;
368           global->check_crl = check_crl;
369           return 0;
370 }
371 
372 
tls_connection_set_verify(void * tls_ctx,struct tls_connection * conn,int verify_peer,unsigned int flags,const u8 * session_ctx,size_t session_ctx_len)373 int tls_connection_set_verify(void *tls_ctx, struct tls_connection *conn,
374                                     int verify_peer, unsigned int flags,
375                                     const u8 *session_ctx, size_t session_ctx_len)
376 {
377 #ifdef CONFIG_TLS_INTERNAL_SERVER
378           if (conn->server)
379                     return tlsv1_server_set_verify(conn->server, verify_peer);
380 #endif /* CONFIG_TLS_INTERNAL_SERVER */
381           return -1;
382 }
383 
384 
tls_connection_get_random(void * tls_ctx,struct tls_connection * conn,struct tls_random * data)385 int tls_connection_get_random(void *tls_ctx, struct tls_connection *conn,
386                                     struct tls_random *data)
387 {
388 #ifdef CONFIG_TLS_INTERNAL_CLIENT
389           if (conn->client)
390                     return tlsv1_client_get_random(conn->client, data);
391 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
392 #ifdef CONFIG_TLS_INTERNAL_SERVER
393           if (conn->server)
394                     return tlsv1_server_get_random(conn->server, data);
395 #endif /* CONFIG_TLS_INTERNAL_SERVER */
396           return -1;
397 }
398 
399 
tls_get_keyblock_size(struct tls_connection * conn)400 static int tls_get_keyblock_size(struct tls_connection *conn)
401 {
402 #ifdef CONFIG_TLS_INTERNAL_CLIENT
403           if (conn->client)
404                     return tlsv1_client_get_keyblock_size(conn->client);
405 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
406 #ifdef CONFIG_TLS_INTERNAL_SERVER
407           if (conn->server)
408                     return tlsv1_server_get_keyblock_size(conn->server);
409 #endif /* CONFIG_TLS_INTERNAL_SERVER */
410           return -1;
411 }
412 
413 
tls_connection_prf(void * tls_ctx,struct tls_connection * conn,const char * label,const u8 * context,size_t context_len,int server_random_first,int skip_keyblock,u8 * out,size_t out_len)414 static int tls_connection_prf(void *tls_ctx, struct tls_connection *conn,
415                                     const char *label, const u8 *context,
416                                     size_t context_len, int server_random_first,
417                                     int skip_keyblock, u8 *out, size_t out_len)
418 {
419           int ret = -1, skip = 0;
420           u8 *tmp_out = NULL;
421           u8 *_out = out;
422 
423           if (skip_keyblock) {
424                     skip = tls_get_keyblock_size(conn);
425                     if (skip < 0)
426                               return -1;
427                     tmp_out = os_malloc(skip + out_len);
428                     if (!tmp_out)
429                               return -1;
430                     _out = tmp_out;
431           }
432 
433 #ifdef CONFIG_TLS_INTERNAL_CLIENT
434           if (conn->client) {
435                     ret = tlsv1_client_prf(conn->client, label, context,
436                                                context_len, server_random_first,
437                                                _out, skip + out_len);
438           }
439 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
440 #ifdef CONFIG_TLS_INTERNAL_SERVER
441           if (conn->server) {
442                     ret = tlsv1_server_prf(conn->server, label, context,
443                                                context_len, server_random_first,
444                                                _out, skip + out_len);
445           }
446 #endif /* CONFIG_TLS_INTERNAL_SERVER */
447           if (ret == 0 && skip_keyblock)
448                     os_memcpy(out, _out + skip, out_len);
449           bin_clear_free(tmp_out, skip);
450 
451           return ret;
452 }
453 
454 
tls_connection_export_key(void * tls_ctx,struct tls_connection * conn,const char * label,const u8 * context,size_t context_len,u8 * out,size_t out_len)455 int tls_connection_export_key(void *tls_ctx, struct tls_connection *conn,
456                                     const char *label, const u8 *context,
457                                     size_t context_len, u8 *out, size_t out_len)
458 {
459           return tls_connection_prf(tls_ctx, conn, label, context, context_len,
460                                           0, 0, out, out_len);
461 }
462 
463 
tls_connection_get_eap_fast_key(void * tls_ctx,struct tls_connection * conn,u8 * out,size_t out_len)464 int tls_connection_get_eap_fast_key(void *tls_ctx, struct tls_connection *conn,
465                                             u8 *out, size_t out_len)
466 {
467           return tls_connection_prf(tls_ctx, conn, "key expansion", NULL, 0,
468                                           1, 1, out, out_len);
469 }
470 
471 
tls_connection_handshake(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data,struct wpabuf ** appl_data)472 struct wpabuf * tls_connection_handshake(void *tls_ctx,
473                                                    struct tls_connection *conn,
474                                                    const struct wpabuf *in_data,
475                                                    struct wpabuf **appl_data)
476 {
477           return tls_connection_handshake2(tls_ctx, conn, in_data, appl_data,
478                                                    NULL);
479 }
480 
481 
tls_connection_handshake2(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data,struct wpabuf ** appl_data,int * need_more_data)482 struct wpabuf * tls_connection_handshake2(void *tls_ctx,
483                                                     struct tls_connection *conn,
484                                                     const struct wpabuf *in_data,
485                                                     struct wpabuf **appl_data,
486                                                     int *need_more_data)
487 {
488 #ifdef CONFIG_TLS_INTERNAL_CLIENT
489           u8 *res, *ad;
490           size_t res_len, ad_len;
491           struct wpabuf *out;
492 
493           if (conn->client == NULL)
494                     return NULL;
495 
496           ad = NULL;
497           res = tlsv1_client_handshake(conn->client,
498                                              in_data ? wpabuf_head(in_data) : NULL,
499                                              in_data ? wpabuf_len(in_data) : 0,
500                                              &res_len, &ad, &ad_len, need_more_data);
501           if (res == NULL)
502                     return NULL;
503           out = wpabuf_alloc_ext_data(res, res_len);
504           if (out == NULL) {
505                     os_free(res);
506                     os_free(ad);
507                     return NULL;
508           }
509           if (appl_data) {
510                     if (ad) {
511                               *appl_data = wpabuf_alloc_ext_data(ad, ad_len);
512                               if (*appl_data == NULL)
513                                         os_free(ad);
514                     } else
515                               *appl_data = NULL;
516           } else
517                     os_free(ad);
518 
519           return out;
520 #else /* CONFIG_TLS_INTERNAL_CLIENT */
521           return NULL;
522 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
523 }
524 
525 
tls_connection_server_handshake(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data,struct wpabuf ** appl_data)526 struct wpabuf * tls_connection_server_handshake(void *tls_ctx,
527                                                             struct tls_connection *conn,
528                                                             const struct wpabuf *in_data,
529                                                             struct wpabuf **appl_data)
530 {
531 #ifdef CONFIG_TLS_INTERNAL_SERVER
532           u8 *res;
533           size_t res_len;
534           struct wpabuf *out;
535 
536           if (conn->server == NULL)
537                     return NULL;
538 
539           if (appl_data)
540                     *appl_data = NULL;
541 
542           res = tlsv1_server_handshake(conn->server, wpabuf_head(in_data),
543                                              wpabuf_len(in_data), &res_len);
544           if (res == NULL && tlsv1_server_established(conn->server))
545                     return wpabuf_alloc(0);
546           if (res == NULL)
547                     return NULL;
548           out = wpabuf_alloc_ext_data(res, res_len);
549           if (out == NULL) {
550                     os_free(res);
551                     return NULL;
552           }
553 
554           return out;
555 #else /* CONFIG_TLS_INTERNAL_SERVER */
556           return NULL;
557 #endif /* CONFIG_TLS_INTERNAL_SERVER */
558 }
559 
560 
tls_connection_encrypt(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data)561 struct wpabuf * tls_connection_encrypt(void *tls_ctx,
562                                                struct tls_connection *conn,
563                                                const struct wpabuf *in_data)
564 {
565 #ifdef CONFIG_TLS_INTERNAL_CLIENT
566           if (conn->client) {
567                     struct wpabuf *buf;
568                     int res;
569                     buf = wpabuf_alloc(wpabuf_len(in_data) + 300);
570                     if (buf == NULL)
571                               return NULL;
572                     res = tlsv1_client_encrypt(conn->client, wpabuf_head(in_data),
573                                                      wpabuf_len(in_data),
574                                                      wpabuf_mhead(buf),
575                                                      wpabuf_size(buf));
576                     if (res < 0) {
577                               wpabuf_free(buf);
578                               return NULL;
579                     }
580                     wpabuf_put(buf, res);
581                     return buf;
582           }
583 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
584 #ifdef CONFIG_TLS_INTERNAL_SERVER
585           if (conn->server) {
586                     struct wpabuf *buf;
587                     int res;
588                     buf = wpabuf_alloc(wpabuf_len(in_data) + 300);
589                     if (buf == NULL)
590                               return NULL;
591                     res = tlsv1_server_encrypt(conn->server, wpabuf_head(in_data),
592                                                      wpabuf_len(in_data),
593                                                      wpabuf_mhead(buf),
594                                                      wpabuf_size(buf));
595                     if (res < 0) {
596                               wpabuf_free(buf);
597                               return NULL;
598                     }
599                     wpabuf_put(buf, res);
600                     return buf;
601           }
602 #endif /* CONFIG_TLS_INTERNAL_SERVER */
603           return NULL;
604 }
605 
606 
tls_connection_decrypt(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data)607 struct wpabuf * tls_connection_decrypt(void *tls_ctx,
608                                                struct tls_connection *conn,
609                                                const struct wpabuf *in_data)
610 {
611           return tls_connection_decrypt2(tls_ctx, conn, in_data, NULL);
612 }
613 
614 
tls_connection_decrypt2(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data,int * need_more_data)615 struct wpabuf * tls_connection_decrypt2(void *tls_ctx,
616                                                   struct tls_connection *conn,
617                                                   const struct wpabuf *in_data,
618                                                   int *need_more_data)
619 {
620           if (need_more_data)
621                     *need_more_data = 0;
622 
623 #ifdef CONFIG_TLS_INTERNAL_CLIENT
624           if (conn->client) {
625                     return tlsv1_client_decrypt(conn->client, wpabuf_head(in_data),
626                                                       wpabuf_len(in_data),
627                                                       need_more_data);
628           }
629 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
630 #ifdef CONFIG_TLS_INTERNAL_SERVER
631           if (conn->server) {
632                     struct wpabuf *buf;
633                     int res;
634                     buf = wpabuf_alloc((wpabuf_len(in_data) + 500) * 3);
635                     if (buf == NULL)
636                               return NULL;
637                     res = tlsv1_server_decrypt(conn->server, wpabuf_head(in_data),
638                                                      wpabuf_len(in_data),
639                                                      wpabuf_mhead(buf),
640                                                      wpabuf_size(buf));
641                     if (res < 0) {
642                               wpabuf_free(buf);
643                               return NULL;
644                     }
645                     wpabuf_put(buf, res);
646                     return buf;
647           }
648 #endif /* CONFIG_TLS_INTERNAL_SERVER */
649           return NULL;
650 }
651 
652 
tls_connection_resumed(void * tls_ctx,struct tls_connection * conn)653 int tls_connection_resumed(void *tls_ctx, struct tls_connection *conn)
654 {
655 #ifdef CONFIG_TLS_INTERNAL_CLIENT
656           if (conn->client)
657                     return tlsv1_client_resumed(conn->client);
658 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
659 #ifdef CONFIG_TLS_INTERNAL_SERVER
660           if (conn->server)
661                     return tlsv1_server_resumed(conn->server);
662 #endif /* CONFIG_TLS_INTERNAL_SERVER */
663           return -1;
664 }
665 
666 
tls_connection_set_cipher_list(void * tls_ctx,struct tls_connection * conn,u8 * ciphers)667 int tls_connection_set_cipher_list(void *tls_ctx, struct tls_connection *conn,
668                                            u8 *ciphers)
669 {
670 #ifdef CONFIG_TLS_INTERNAL_CLIENT
671           if (conn->client)
672                     return tlsv1_client_set_cipher_list(conn->client, ciphers);
673 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
674 #ifdef CONFIG_TLS_INTERNAL_SERVER
675           if (conn->server)
676                     return tlsv1_server_set_cipher_list(conn->server, ciphers);
677 #endif /* CONFIG_TLS_INTERNAL_SERVER */
678           return -1;
679 }
680 
681 
tls_get_version(void * ssl_ctx,struct tls_connection * conn,char * buf,size_t buflen)682 int tls_get_version(void *ssl_ctx, struct tls_connection *conn,
683                         char *buf, size_t buflen)
684 {
685           if (conn == NULL)
686                     return -1;
687 #ifdef CONFIG_TLS_INTERNAL_CLIENT
688           if (conn->client)
689                     return tlsv1_client_get_version(conn->client, buf, buflen);
690 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
691           return -1;
692 }
693 
694 
tls_get_cipher(void * tls_ctx,struct tls_connection * conn,char * buf,size_t buflen)695 int tls_get_cipher(void *tls_ctx, struct tls_connection *conn,
696                        char *buf, size_t buflen)
697 {
698           if (conn == NULL)
699                     return -1;
700 #ifdef CONFIG_TLS_INTERNAL_CLIENT
701           if (conn->client)
702                     return tlsv1_client_get_cipher(conn->client, buf, buflen);
703 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
704 #ifdef CONFIG_TLS_INTERNAL_SERVER
705           if (conn->server)
706                     return tlsv1_server_get_cipher(conn->server, buf, buflen);
707 #endif /* CONFIG_TLS_INTERNAL_SERVER */
708           return -1;
709 }
710 
711 
tls_connection_enable_workaround(void * tls_ctx,struct tls_connection * conn)712 int tls_connection_enable_workaround(void *tls_ctx,
713                                              struct tls_connection *conn)
714 {
715           return -1;
716 }
717 
718 
tls_connection_client_hello_ext(void * tls_ctx,struct tls_connection * conn,int ext_type,const u8 * data,size_t data_len)719 int tls_connection_client_hello_ext(void *tls_ctx, struct tls_connection *conn,
720                                             int ext_type, const u8 *data,
721                                             size_t data_len)
722 {
723 #ifdef CONFIG_TLS_INTERNAL_CLIENT
724           if (conn->client) {
725                     return tlsv1_client_hello_ext(conn->client, ext_type,
726                                                         data, data_len);
727           }
728 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
729           return -1;
730 }
731 
732 
tls_connection_get_failed(void * tls_ctx,struct tls_connection * conn)733 int tls_connection_get_failed(void *tls_ctx, struct tls_connection *conn)
734 {
735 #ifdef CONFIG_TLS_INTERNAL_SERVER
736           if (conn->server)
737                     return tlsv1_server_get_failed(conn->server);
738 #endif /* CONFIG_TLS_INTERNAL_SERVER */
739           return 0;
740 }
741 
742 
tls_connection_get_read_alerts(void * tls_ctx,struct tls_connection * conn)743 int tls_connection_get_read_alerts(void *tls_ctx, struct tls_connection *conn)
744 {
745 #ifdef CONFIG_TLS_INTERNAL_SERVER
746           if (conn->server)
747                     return tlsv1_server_get_read_alerts(conn->server);
748 #endif /* CONFIG_TLS_INTERNAL_SERVER */
749           return 0;
750 }
751 
752 
tls_connection_get_write_alerts(void * tls_ctx,struct tls_connection * conn)753 int tls_connection_get_write_alerts(void *tls_ctx,
754                                             struct tls_connection *conn)
755 {
756 #ifdef CONFIG_TLS_INTERNAL_SERVER
757           if (conn->server)
758                     return tlsv1_server_get_write_alerts(conn->server);
759 #endif /* CONFIG_TLS_INTERNAL_SERVER */
760           return 0;
761 }
762 
763 
tls_connection_set_session_ticket_cb(void * tls_ctx,struct tls_connection * conn,tls_session_ticket_cb cb,void * ctx)764 int tls_connection_set_session_ticket_cb(void *tls_ctx,
765                                                    struct tls_connection *conn,
766                                                    tls_session_ticket_cb cb,
767                                                    void *ctx)
768 {
769 #ifdef CONFIG_TLS_INTERNAL_CLIENT
770           if (conn->client) {
771                     tlsv1_client_set_session_ticket_cb(conn->client, cb, ctx);
772                     return 0;
773           }
774 #endif /* CONFIG_TLS_INTERNAL_CLIENT */
775 #ifdef CONFIG_TLS_INTERNAL_SERVER
776           if (conn->server) {
777                     tlsv1_server_set_session_ticket_cb(conn->server, cb, ctx);
778                     return 0;
779           }
780 #endif /* CONFIG_TLS_INTERNAL_SERVER */
781           return -1;
782 }
783 
784 
tls_get_library_version(char * buf,size_t buf_len)785 int tls_get_library_version(char *buf, size_t buf_len)
786 {
787           return os_snprintf(buf, buf_len, "internal");
788 }
789 
790 
tls_connection_set_success_data(struct tls_connection * conn,struct wpabuf * data)791 void tls_connection_set_success_data(struct tls_connection *conn,
792                                              struct wpabuf *data)
793 {
794 }
795 
796 
tls_connection_set_success_data_resumed(struct tls_connection * conn)797 void tls_connection_set_success_data_resumed(struct tls_connection *conn)
798 {
799 }
800 
801 
802 const struct wpabuf *
tls_connection_get_success_data(struct tls_connection * conn)803 tls_connection_get_success_data(struct tls_connection *conn)
804 {
805           return NULL;
806 }
807 
808 
tls_connection_remove_session(struct tls_connection * conn)809 void tls_connection_remove_session(struct tls_connection *conn)
810 {
811 }
812