1 /******************************************************************************
2 *
3 * Copyright (C) 2009-2012 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 /******************************************************************************
20 *
21 * this file contains functions relating to BLE management.
22 *
23 ******************************************************************************/
24
25 #include <string.h>
26 #include "common/bt_target.h"
27 //#include "bt_utils.h"
28 #include "stack/l2cdefs.h"
29 #include "l2c_int.h"
30 #include "stack/btu.h"
31 #include "btm_int.h"
32 #include "stack/hcimsgs.h"
33 #include "device/controller.h"
34
35 #if (BLE_INCLUDED == TRUE)
36
37 #if (BLE_50_FEATURE_SUPPORT == TRUE)
38 const tHCI_ExtConnParams ext_conn_params = {
39 .scan_interval = 0x40,
40 .scan_window = 0x40,
41 .conn_interval_min = 320, // 306-> 362Kbps
42 .conn_interval_max = 320,
43 .conn_latency = 0,
44 .sup_timeout = 600,
45 .min_ce_len = 0,
46 .max_ce_len = 0,
47 };
48 #define BLE_PHY_NO_PREF 0
49 #define BLE_PHY_PREF_MASK ((1 << 2) | (1 << 1) | (1 << 0))
50
51 #endif // #if (BLE_50_FEATURE_SUPPORT == TRUE)
52
53 static BOOLEAN l2cble_start_conn_update (tL2C_LCB *p_lcb);
54 extern int64_t esp_system_get_time(void);
55
56 /*******************************************************************************
57 **
58 ** Function L2CA_CancelBleConnectReq
59 **
60 ** Description Cancel a pending connection attempt to a BLE device.
61 **
62 ** Parameters: BD Address of remote
63 **
64 ** Return value: TRUE if connection was cancelled
65 **
66 *******************************************************************************/
L2CA_CancelBleConnectReq(BD_ADDR rem_bda)67 BOOLEAN L2CA_CancelBleConnectReq (BD_ADDR rem_bda)
68 {
69 tL2C_LCB *p_lcb;
70
71 /* There can be only one BLE connection request outstanding at a time */
72 if (btm_ble_get_conn_st() == BLE_CONN_IDLE) {
73 L2CAP_TRACE_WARNING ("L2CA_CancelBleConnectReq - no connection pending");
74 return (FALSE);
75 }
76
77 if (memcmp (rem_bda, l2cb.ble_connecting_bda, BD_ADDR_LEN)) {
78 L2CAP_TRACE_WARNING ("L2CA_CancelBleConnectReq - different BDA Connecting: %08x%04x Cancel: %08x%04x",
79 (l2cb.ble_connecting_bda[0] << 24) + (l2cb.ble_connecting_bda[1] << 16) + (l2cb.ble_connecting_bda[2] << 8) + l2cb.ble_connecting_bda[3],
80 (l2cb.ble_connecting_bda[4] << 8) + l2cb.ble_connecting_bda[5],
81 (rem_bda[0] << 24) + (rem_bda[1] << 16) + (rem_bda[2] << 8) + rem_bda[3], (rem_bda[4] << 8) + rem_bda[5]);
82
83 return (FALSE);
84 }
85
86 if (btsnd_hcic_ble_create_conn_cancel()) {
87 p_lcb = l2cu_find_lcb_by_bd_addr(rem_bda, BT_TRANSPORT_LE);
88 /* Do not remove lcb if an LE link is already up as a peripheral */
89 if (p_lcb != NULL &&
90 !(p_lcb->link_role == HCI_ROLE_SLAVE && BTM_ACL_IS_CONNECTED(rem_bda))) {
91 p_lcb->disc_reason = L2CAP_CONN_CANCEL;
92 l2cu_release_lcb (p_lcb);
93 }
94 /* update state to be cancel, wait for connection cancel complete */
95 btm_ble_set_conn_st (BLE_CONN_CANCEL);
96
97 return (TRUE);
98 } else {
99 return (FALSE);
100 }
101 }
102
103 /*******************************************************************************
104 **
105 ** Function L2CA_UpdateBleConnParams
106 **
107 ** Description Update BLE connection parameters.
108 **
109 ** Parameters: BD Address of remote
110 **
111 ** Return value: TRUE if update started
112 **
113 *******************************************************************************/
L2CA_UpdateBleConnParams(BD_ADDR rem_bda,UINT16 min_int,UINT16 max_int,UINT16 latency,UINT16 timeout)114 BOOLEAN L2CA_UpdateBleConnParams (BD_ADDR rem_bda, UINT16 min_int, UINT16 max_int,
115 UINT16 latency, UINT16 timeout)
116 {
117 tL2C_LCB *p_lcb;
118 tACL_CONN *p_acl_cb = btm_bda_to_acl(rem_bda, BT_TRANSPORT_LE);
119
120 /* See if we have a link control block for the remote device */
121 p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_LE);
122
123 /* If we don't have one, create one and accept the connection. */
124 if (!p_lcb || !p_acl_cb) {
125 L2CAP_TRACE_WARNING ("L2CA_UpdateBleConnParams - unknown BD_ADDR %08x%04x",
126 (rem_bda[0] << 24) + (rem_bda[1] << 16) + (rem_bda[2] << 8) + rem_bda[3],
127 (rem_bda[4] << 8) + rem_bda[5]);
128 return (FALSE);
129 }
130
131 if (p_lcb->transport != BT_TRANSPORT_LE) {
132 L2CAP_TRACE_WARNING ("L2CA_UpdateBleConnParams - BD_ADDR %08x%04x not LE",
133 (rem_bda[0] << 24) + (rem_bda[1] << 16) + (rem_bda[2] << 8) + rem_bda[3],
134 (rem_bda[4] << 8) + rem_bda[5]);
135 return (FALSE);
136 }
137
138 if (p_lcb->conn_update_mask & L2C_BLE_UPDATE_PARAM_FULL){
139 UINT8 status = HCI_ERR_ILLEGAL_COMMAND;
140 L2CAP_TRACE_ERROR("There are two connection parameter requests that are being updated, please try later ");
141 if (conn_param_update_cb.update_conn_param_cb != NULL) {
142 tBTM_LE_UPDATE_CONN_PRAMS update_param;
143 update_param.max_conn_int = max_int;
144 update_param.min_conn_int = min_int;
145 update_param.conn_int = p_lcb->current_used_conn_interval;
146 update_param.slave_latency = p_lcb->current_used_conn_latency;
147 update_param.supervision_tout = p_lcb->current_used_conn_timeout;
148 (conn_param_update_cb.update_conn_param_cb)(status, p_lcb->remote_bd_addr, &update_param);
149 }
150 return (FALSE);
151 }
152
153 p_lcb->waiting_update_conn_min_interval = min_int;
154 p_lcb->waiting_update_conn_max_interval = max_int;
155 p_lcb->waiting_update_conn_latency = latency;
156 p_lcb->waiting_update_conn_timeout = timeout;
157
158 p_lcb->conn_update_mask |= L2C_BLE_NEW_CONN_PARAM;
159
160 if(l2cble_start_conn_update(p_lcb) == TRUE) {
161 UINT32 time = CalConnectParamTimeout(p_lcb);
162 btu_start_timer(&p_lcb->upda_con_timer, BTU_TTYPE_L2CAP_UPDA_CONN_PARAMS, time);
163 }
164
165 return (TRUE);
166 }
167
168
169 /*******************************************************************************
170 **
171 ** Function L2CA_EnableUpdateBleConnParams
172 **
173 ** Description Enable or disable update based on the request from the peer
174 **
175 ** Parameters: BD Address of remote
176 **
177 ** Return value: TRUE if update started
178 **
179 *******************************************************************************/
L2CA_EnableUpdateBleConnParams(BD_ADDR rem_bda,BOOLEAN enable)180 BOOLEAN L2CA_EnableUpdateBleConnParams (BD_ADDR rem_bda, BOOLEAN enable)
181 {
182 tL2C_LCB *p_lcb;
183
184 /* See if we have a link control block for the remote device */
185 p_lcb = l2cu_find_lcb_by_bd_addr (rem_bda, BT_TRANSPORT_LE);
186
187 if (!p_lcb) {
188 L2CAP_TRACE_WARNING ("L2CA_EnableUpdateBleConnParams - unknown BD_ADDR %08x%04x",
189 (rem_bda[0] << 24) + (rem_bda[1] << 16) + (rem_bda[2] << 8) + rem_bda[3],
190 (rem_bda[4] << 8) + rem_bda[5]);
191 return (FALSE);
192 }
193
194 L2CAP_TRACE_API ("%s - BD_ADDR %08x%04x enable %d current upd state 0x%02x", __FUNCTION__,
195 (rem_bda[0] << 24) + (rem_bda[1] << 16) + (rem_bda[2] << 8) + rem_bda[3],
196 (rem_bda[4] << 8) + rem_bda[5], enable, p_lcb->conn_update_mask);
197
198 if (p_lcb->transport != BT_TRANSPORT_LE) {
199 L2CAP_TRACE_WARNING ("%s - BD_ADDR %08x%04x not LE (link role %d)", __FUNCTION__,
200 (rem_bda[0] << 24) + (rem_bda[1] << 16) + (rem_bda[2] << 8) + rem_bda[3],
201 (rem_bda[4] << 8) + rem_bda[5], p_lcb->link_role);
202 return (FALSE);
203 }
204
205 if (p_lcb->current_used_conn_interval <= BTM_BLE_CONN_INT_MAX_DEF && (p_lcb->conn_update_mask & L2C_BLE_CONN_UPDATE_DISABLE) == 0){
206 return (FALSE);
207 }
208 bool is_disable = (p_lcb->conn_update_mask & L2C_BLE_CONN_UPDATE_DISABLE);
209 if(l2cu_plcb_active_count() >1 && !(enable && is_disable)) {
210 return FALSE;
211 }
212
213 if (enable) {
214 p_lcb->conn_update_mask &= ~L2C_BLE_CONN_UPDATE_DISABLE;
215 } else {
216 p_lcb->conn_update_mask |= L2C_BLE_CONN_UPDATE_DISABLE;
217 }
218
219 if (l2cble_start_conn_update(p_lcb) == TRUE) {
220 UINT32 time = CalConnectParamTimeout(p_lcb);
221 btu_start_timer(&p_lcb->upda_con_timer, BTU_TTYPE_L2CAP_UPDA_CONN_PARAMS, time);
222 }
223
224 return (TRUE);
225 }
226
227
228 /*******************************************************************************
229 **
230 ** Function L2CA_GetBleConnRole
231 **
232 ** Description This function returns the connection role.
233 **
234 ** Returns link role.
235 **
236 *******************************************************************************/
L2CA_GetBleConnRole(BD_ADDR bd_addr)237 UINT8 L2CA_GetBleConnRole (BD_ADDR bd_addr)
238 {
239 UINT8 role = HCI_ROLE_UNKNOWN;
240
241 tL2C_LCB *p_lcb;
242
243 if ((p_lcb = l2cu_find_lcb_by_bd_addr (bd_addr, BT_TRANSPORT_LE)) != NULL) {
244 role = p_lcb->link_role;
245 }
246
247 return role;
248 }
249
250 /*******************************************************************************
251 **
252 ** Function l2cble_notify_le_connection
253 **
254 ** Description This function notifiy the l2cap connection to the app layer
255 **
256 ** Returns none
257 **
258 *******************************************************************************/
l2cble_notify_le_connection(BD_ADDR bda)259 void l2cble_notify_le_connection (BD_ADDR bda)
260 {
261 tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr (bda, BT_TRANSPORT_LE);
262 tACL_CONN *p_acl = btm_bda_to_acl(bda, BT_TRANSPORT_LE) ;
263
264 if (p_lcb != NULL && p_acl != NULL && p_lcb->link_state != LST_CONNECTED) {
265
266 if(p_acl->link_role == HCI_ROLE_SLAVE) {
267 //clear p_cb->state, controller will stop adv when ble connected.
268 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
269 if(p_cb) {
270 p_cb->adv_mode = BTM_BLE_ADV_DISABLE;
271 p_cb->state = BTM_BLE_STOP_ADV;
272 }
273 }
274 /* update link status */
275 btm_establish_continue(p_acl);
276 /* update l2cap link status and send callback */
277 p_lcb->link_state = LST_CONNECTED;
278 l2cu_process_fixed_chnl_resp (p_lcb);
279 }
280 }
281
282 /*******************************************************************************
283 **
284 ** Function l2cble_scanner_conn_comp
285 **
286 ** Description This function is called when an HCI Connection Complete
287 ** event is received while we are a scanner (so we are master).
288 **
289 ** Returns void
290 **
291 *******************************************************************************/
l2cble_scanner_conn_comp(UINT16 handle,BD_ADDR bda,tBLE_ADDR_TYPE type,UINT16 conn_interval,UINT16 conn_latency,UINT16 conn_timeout)292 void l2cble_scanner_conn_comp (UINT16 handle, BD_ADDR bda, tBLE_ADDR_TYPE type,
293 UINT16 conn_interval, UINT16 conn_latency, UINT16 conn_timeout)
294 {
295 tL2C_LCB *p_lcb;
296 tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (bda);
297
298 L2CAP_TRACE_DEBUG ("l2cble_scanner_conn_comp: HANDLE=%d addr_type=%d conn_interval=%d slave_latency=%d supervision_tout=%d",
299 handle, type, conn_interval, conn_latency, conn_timeout);
300
301 l2cb.is_ble_connecting = FALSE;
302
303 /* See if we have a link control block for the remote device */
304 p_lcb = l2cu_find_lcb_by_bd_addr (bda, BT_TRANSPORT_LE);
305
306 /* If we don't have one, create one. this is auto connection complete. */
307 if (!p_lcb) {
308 p_lcb = l2cu_allocate_lcb (bda, FALSE, BT_TRANSPORT_LE);
309 if (!p_lcb) {
310 #if (SMP_INCLUDED == TRUE)
311 btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
312 L2CAP_TRACE_ERROR ("l2cble_scanner_conn_comp - failed to allocate LCB");
313 #endif ///SMP_INCLUDED == TRUE
314 return;
315 } else {
316 if (!l2cu_initialize_fixed_ccb (p_lcb, L2CAP_ATT_CID, &l2cb.fixed_reg[L2CAP_ATT_CID - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts)) {
317 #if (SMP_INCLUDED == TRUE)
318 btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
319 L2CAP_TRACE_WARNING ("l2cble_scanner_conn_comp - LCB but no CCB");
320 #endif ///SMP_INCLUDED == TRUE
321 return ;
322 }
323 }
324 } else if (p_lcb->link_state != LST_CONNECTING) {
325 L2CAP_TRACE_ERROR ("L2CAP got BLE scanner conn_comp in bad state: %d", p_lcb->link_state);
326 return;
327 }
328 btu_stop_timer(&p_lcb->timer_entry);
329
330 /* Save the handle */
331 p_lcb->handle = handle;
332
333 /* Connected OK. Change state to connected, we were scanning so we are master */
334 p_lcb->link_role = HCI_ROLE_MASTER;
335 p_lcb->transport = BT_TRANSPORT_LE;
336
337 /* update link parameter, set slave link as non-spec default upon link up */
338 p_lcb->waiting_update_conn_min_interval = p_lcb->waiting_update_conn_max_interval = p_lcb->current_used_conn_interval = conn_interval;
339 p_lcb->waiting_update_conn_timeout = p_lcb->current_used_conn_timeout = conn_timeout;
340 p_lcb->waiting_update_conn_latency = p_lcb->current_used_conn_latency = conn_latency;
341 p_lcb->conn_update_mask = L2C_BLE_NOT_DEFAULT_PARAM;
342 p_lcb->updating_param_flag = false;
343
344 /* If there are any preferred connection parameters, set them now */
345 if ( (p_dev_rec->conn_params.min_conn_int >= BTM_BLE_CONN_INT_MIN ) &&
346 (p_dev_rec->conn_params.min_conn_int <= BTM_BLE_CONN_INT_MAX ) &&
347 (p_dev_rec->conn_params.max_conn_int >= BTM_BLE_CONN_INT_MIN ) &&
348 (p_dev_rec->conn_params.max_conn_int <= BTM_BLE_CONN_INT_MAX ) &&
349 (p_dev_rec->conn_params.slave_latency <= BTM_BLE_CONN_LATENCY_MAX ) &&
350 (p_dev_rec->conn_params.supervision_tout >= BTM_BLE_CONN_SUP_TOUT_MIN) &&
351 (p_dev_rec->conn_params.supervision_tout <= BTM_BLE_CONN_SUP_TOUT_MAX) &&
352 ((conn_interval < p_dev_rec->conn_params.min_conn_int &&
353 p_dev_rec->conn_params.min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ||
354 (conn_interval > p_dev_rec->conn_params.max_conn_int) ||
355 (conn_latency > p_dev_rec->conn_params.slave_latency) ||
356 (conn_timeout > p_dev_rec->conn_params.supervision_tout))) {
357 L2CAP_TRACE_ERROR ("upd_ll_conn_params: HANDLE=%d min_conn_int=%d max_conn_int=%d slave_latency=%d supervision_tout=%d",
358 handle, p_dev_rec->conn_params.min_conn_int, p_dev_rec->conn_params.max_conn_int,
359 p_dev_rec->conn_params.slave_latency, p_dev_rec->conn_params.supervision_tout);
360
361 p_lcb->waiting_update_conn_min_interval = p_dev_rec->conn_params.min_conn_int;
362 p_lcb->waiting_update_conn_max_interval = p_dev_rec->conn_params.max_conn_int;
363 p_lcb->waiting_update_conn_timeout = p_dev_rec->conn_params.supervision_tout;
364 p_lcb->waiting_update_conn_latency = p_dev_rec->conn_params.slave_latency;
365
366 btsnd_hcic_ble_upd_ll_conn_params (handle,
367 p_dev_rec->conn_params.min_conn_int,
368 p_dev_rec->conn_params.max_conn_int,
369 p_dev_rec->conn_params.slave_latency,
370 p_dev_rec->conn_params.supervision_tout,
371 BLE_CE_LEN_MIN, BLE_CE_LEN_MIN);
372 }
373
374 /* Tell BTM Acl management about the link */
375 btm_acl_created (bda, NULL, p_dev_rec->sec_bd_name, handle, p_lcb->link_role, BT_TRANSPORT_LE);
376
377 p_lcb->peer_chnl_mask[0] = L2CAP_FIXED_CHNL_ATT_BIT | L2CAP_FIXED_CHNL_BLE_SIG_BIT | L2CAP_FIXED_CHNL_SMP_BIT;
378
379 btm_ble_set_conn_st(BLE_CONN_IDLE);
380
381 #if BLE_PRIVACY_SPT == TRUE
382 btm_ble_disable_resolving_list(BTM_BLE_RL_INIT, TRUE);
383 #endif
384 }
385
386
387 /*******************************************************************************
388 **
389 ** Function l2cble_advertiser_conn_comp
390 **
391 ** Description This function is called when an HCI Connection Complete
392 ** event is received while we are an advertiser (so we are slave).
393 **
394 ** Returns void
395 **
396 *******************************************************************************/
l2cble_advertiser_conn_comp(UINT16 handle,BD_ADDR bda,tBLE_ADDR_TYPE type,UINT16 conn_interval,UINT16 conn_latency,UINT16 conn_timeout)397 void l2cble_advertiser_conn_comp (UINT16 handle, BD_ADDR bda, tBLE_ADDR_TYPE type,
398 UINT16 conn_interval, UINT16 conn_latency, UINT16 conn_timeout)
399 {
400 tL2C_LCB *p_lcb;
401 tBTM_SEC_DEV_REC *p_dev_rec;
402 UNUSED(type);
403 UNUSED(conn_interval);
404 UNUSED(conn_latency);
405 UNUSED(conn_timeout);
406
407 /* See if we have a link control block for the remote device */
408 p_lcb = l2cu_find_lcb_by_bd_addr (bda, BT_TRANSPORT_LE);
409
410 /* If we don't have one, create one and accept the connection. */
411 if (!p_lcb) {
412 p_lcb = l2cu_allocate_lcb (bda, FALSE, BT_TRANSPORT_LE);
413 if (!p_lcb) {
414 #if (SMP_INCLUDED == TRUE)
415 btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
416 #endif ///SMP_INCLUDED == TRUE
417 L2CAP_TRACE_ERROR ("l2cble_advertiser_conn_comp - failed to allocate LCB");
418 return;
419 } else {
420 if (!l2cu_initialize_fixed_ccb (p_lcb, L2CAP_ATT_CID, &l2cb.fixed_reg[L2CAP_ATT_CID - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts)) {
421 #if (SMP_INCLUDED == TRUE)
422 btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
423 #endif ///SMP_INCLUDED == TRUE
424 L2CAP_TRACE_WARNING ("l2cble_scanner_conn_comp - LCB but no CCB");
425 return ;
426 }
427 }
428 }
429
430 /* Save the handle */
431 p_lcb->handle = handle;
432
433 /* Connected OK. Change state to connected, we were advertising, so we are slave */
434 p_lcb->link_role = HCI_ROLE_SLAVE;
435 p_lcb->transport = BT_TRANSPORT_LE;
436
437 /* update link parameter, set slave link as non-spec default upon link up */
438 p_lcb->waiting_update_conn_min_interval = p_lcb->waiting_update_conn_max_interval = p_lcb->current_used_conn_interval = conn_interval;
439 p_lcb->waiting_update_conn_timeout = p_lcb->current_used_conn_timeout = conn_timeout;
440 p_lcb->waiting_update_conn_latency = p_lcb->current_used_conn_latency = conn_latency;
441 p_lcb->conn_update_mask = L2C_BLE_NOT_DEFAULT_PARAM;
442 p_lcb->updating_param_flag = false;
443
444 /* Tell BTM Acl management about the link */
445 p_dev_rec = btm_find_or_alloc_dev (bda);
446
447 btm_acl_created (bda, NULL, p_dev_rec->sec_bd_name, handle, p_lcb->link_role, BT_TRANSPORT_LE);
448
449 #if BLE_PRIVACY_SPT == TRUE
450 btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
451 #endif
452
453 p_lcb->peer_chnl_mask[0] = L2CAP_FIXED_CHNL_ATT_BIT | L2CAP_FIXED_CHNL_BLE_SIG_BIT | L2CAP_FIXED_CHNL_SMP_BIT;
454
455 if (!HCI_LE_SLAVE_INIT_FEAT_EXC_SUPPORTED(controller_get_interface()->get_features_ble()->as_array)) {
456 p_lcb->link_state = LST_CONNECTED;
457 l2cu_process_fixed_chnl_resp (p_lcb);
458 }
459
460 /* when adv and initiating are both active, cancel the direct connection */
461 if (l2cb.is_ble_connecting && memcmp(bda, l2cb.ble_connecting_bda, BD_ADDR_LEN) == 0) {
462 L2CA_CancelBleConnectReq(bda);
463 }
464 }
465
466 /*******************************************************************************
467 **
468 ** Function l2cble_conn_comp
469 **
470 ** Description This function is called when an HCI Connection Complete
471 ** event is received.
472 **
473 ** Returns void
474 **
475 *******************************************************************************/
l2cble_conn_comp(UINT16 handle,UINT8 role,BD_ADDR bda,tBLE_ADDR_TYPE type,UINT16 conn_interval,UINT16 conn_latency,UINT16 conn_timeout)476 void l2cble_conn_comp(UINT16 handle, UINT8 role, BD_ADDR bda, tBLE_ADDR_TYPE type,
477 UINT16 conn_interval, UINT16 conn_latency, UINT16 conn_timeout)
478 {
479 btm_ble_update_link_topology_mask(role, TRUE);
480
481 if (role == HCI_ROLE_MASTER) {
482 l2cble_scanner_conn_comp(handle, bda, type, conn_interval, conn_latency, conn_timeout);
483 } else {
484 l2cble_advertiser_conn_comp(handle, bda, type, conn_interval, conn_latency, conn_timeout);
485 }
486 }
487
488 /*******************************************************************************
489 **
490 ** Function l2cble_start_conn_update
491 **
492 ** Description start BLE connection parameter update process based on status
493 **
494 ** Parameters: lcb : l2cap link control block
495 **
496 ** Return value: true if successfully sending the request to peer device, else false.
497 **
498 *******************************************************************************/
l2cble_start_conn_update(tL2C_LCB * p_lcb)499 static BOOLEAN l2cble_start_conn_update (tL2C_LCB *p_lcb)
500 {
501 UINT16 min_conn_int, max_conn_int, slave_latency, supervision_tout;
502 #if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE) && (BLE_SLAVE_UPD_CONN_PARAMS == TRUE)
503 tACL_CONN *p_acl_cb = btm_bda_to_acl(p_lcb->remote_bd_addr, BT_TRANSPORT_LE);
504 #endif /* defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE) && (BLE_SLAVE_UPD_CONN_PARAMS == TRUE */
505
506 if (p_lcb->conn_update_mask & L2C_BLE_UPDATE_PENDING) {
507 L2CAP_TRACE_WARNING("%s, the last connection update command still pending.", __func__);
508 p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PARAM_FULL;
509 return FALSE;
510 }
511
512 if (p_lcb->conn_update_mask & L2C_BLE_CONN_UPDATE_DISABLE) {
513 /* application requests to disable parameters update.
514 If parameters are already updated, lets set them
515 up to what has been requested during connection establishement */
516 if (p_lcb->conn_update_mask & L2C_BLE_NOT_DEFAULT_PARAM &&
517 /* current connection interval is greater than default min */
518 p_lcb->current_used_conn_interval > BTM_BLE_CONN_INT_MAX_DEF) {
519 /* use 6 * 1.25 = 7.5 ms as fast connection parameter, 0 slave latency */
520 min_conn_int = max_conn_int = BTM_BLE_CONN_INT_MIN;
521 slave_latency = BTM_BLE_CONN_SLAVE_LATENCY_DEF;
522 supervision_tout = BTM_BLE_CONN_TIMEOUT_DEF;
523
524 /* if both side 4.1, or we are master device, send HCI command */
525 if (p_lcb->link_role == HCI_ROLE_MASTER
526 #if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE) && (BLE_SLAVE_UPD_CONN_PARAMS == TRUE)
527 || (HCI_LE_CONN_PARAM_REQ_SUPPORTED(controller_get_interface()->get_features_ble()->as_array) &&
528 HCI_LE_CONN_PARAM_REQ_SUPPORTED(p_acl_cb->peer_le_features))
529 #endif
530 ) {
531 btsnd_hcic_ble_upd_ll_conn_params(p_lcb->handle, min_conn_int, max_conn_int,
532 slave_latency, supervision_tout, BLE_CE_LEN_MIN, BLE_CE_LEN_MIN);
533 } else {
534 l2cu_send_peer_ble_par_req (p_lcb, min_conn_int, max_conn_int, slave_latency, supervision_tout);
535 }
536
537 //cache save
538 p_lcb->updating_conn_min_interval = min_conn_int;
539 p_lcb->updating_conn_max_interval = max_conn_int;
540 p_lcb->updating_param_flag = true;
541
542 p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PENDING;
543 p_lcb->conn_update_mask &= ~L2C_BLE_NOT_DEFAULT_PARAM;
544 p_lcb->conn_update_mask |= L2C_BLE_NEW_CONN_PARAM;
545 return TRUE;
546 }else {
547 return FALSE;
548 }
549 } else {
550 /* application allows to do update, if we were delaying one do it now */
551 if (p_lcb->conn_update_mask & L2C_BLE_NEW_CONN_PARAM) {
552 /* if both side 4.1, or we are master device, send HCI command */
553 if (p_lcb->link_role == HCI_ROLE_MASTER
554 #if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE) && (BLE_SLAVE_UPD_CONN_PARAMS == TRUE)
555 || (HCI_LE_CONN_PARAM_REQ_SUPPORTED(controller_get_interface()->get_features_ble()->as_array) &&
556 HCI_LE_CONN_PARAM_REQ_SUPPORTED(p_acl_cb->peer_le_features))
557 #endif
558 ) {
559 btsnd_hcic_ble_upd_ll_conn_params(p_lcb->handle, p_lcb->waiting_update_conn_min_interval,
560 p_lcb->waiting_update_conn_max_interval, p_lcb->waiting_update_conn_latency, p_lcb->waiting_update_conn_timeout, BLE_CE_LEN_MIN, BLE_CE_LEN_MIN);
561 } else {
562 l2cu_send_peer_ble_par_req (p_lcb, p_lcb->waiting_update_conn_min_interval, p_lcb->waiting_update_conn_max_interval,
563 p_lcb->waiting_update_conn_latency, p_lcb->waiting_update_conn_timeout);
564 }
565
566 //cache save
567 p_lcb->updating_conn_min_interval = p_lcb->waiting_update_conn_min_interval;
568 p_lcb->updating_conn_max_interval = p_lcb->waiting_update_conn_max_interval;
569 p_lcb->updating_param_flag = true;
570
571 p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PENDING;
572 p_lcb->conn_update_mask &= ~L2C_BLE_NEW_CONN_PARAM;
573 p_lcb->conn_update_mask |= L2C_BLE_NOT_DEFAULT_PARAM;
574 return TRUE;
575 } else {
576 return FALSE;
577 }
578 }
579 }
580
581 /*******************************************************************************
582 **
583 ** Function l2cble_process_conn_update_evt
584 **
585 ** Description This function enables the connection update request from remote
586 ** after a successful connection update response is received.
587 **
588 ** Returns void
589 **
590 *******************************************************************************/
l2cble_process_conn_update_evt(UINT16 handle,UINT8 status,UINT16 conn_interval,UINT16 conn_latency,UINT16 conn_timeout)591 void l2cble_process_conn_update_evt (UINT16 handle, UINT8 status, UINT16 conn_interval,
592 UINT16 conn_latency, UINT16 conn_timeout)
593 {
594 tL2C_LCB *p_lcb;
595
596 /* See if we have a link control block for the remote device */
597 p_lcb = l2cu_find_lcb_by_handle(handle);
598 if (!p_lcb) {
599 L2CAP_TRACE_WARNING("le con upd: inv hdl=%d", handle);
600 return;
601 }
602 if (status == HCI_SUCCESS){
603 p_lcb->current_used_conn_interval = conn_interval;
604 p_lcb->current_used_conn_latency = conn_latency;
605 p_lcb->current_used_conn_timeout = conn_timeout;
606 }else{
607 L2CAP_TRACE_WARNING("le con upd: err_stat=0x%x", status);
608 }
609
610 p_lcb->conn_update_mask &= ~L2C_BLE_UPDATE_PENDING;
611 p_lcb->conn_update_mask &= ~L2C_BLE_UPDATE_PARAM_FULL;
612 btu_stop_timer(&p_lcb->upda_con_timer);
613
614 if (conn_param_update_cb.update_conn_param_cb != NULL) {
615 l2c_send_update_conn_params_cb(p_lcb, status);
616 }
617
618 if (l2cble_start_conn_update(p_lcb) == TRUE) {
619 UINT32 time = CalConnectParamTimeout(p_lcb);
620 btu_start_timer(&p_lcb->upda_con_timer, BTU_TTYPE_L2CAP_UPDA_CONN_PARAMS, time);
621 }
622
623 btu_stop_timer (&p_lcb->timer_entry);
624
625 L2CAP_TRACE_DEBUG("le con upd: conn_update_mask=%d", p_lcb->conn_update_mask);
626 }
627
628 /*******************************************************************************
629 **
630 ** Function l2cble_get_conn_param_format_err_from_contoller
631 **
632 ** Description This function is called when host get illegal connection paramrters
633 ** format status from controller
634 **
635 ** Returns void
636 **
637 *******************************************************************************/
l2cble_get_conn_param_format_err_from_contoller(UINT8 status,UINT16 handle)638 void l2cble_get_conn_param_format_err_from_contoller (UINT8 status, UINT16 handle)
639 {
640 tL2C_LCB *p_lcb;
641
642 /* See if we have a link control block for the remote device */
643 p_lcb = l2cu_find_lcb_by_handle(handle);
644 if (!p_lcb) {
645 L2CAP_TRACE_ERROR("%s: Invalid handle: %d", __FUNCTION__, handle);
646 return;
647 }
648
649 p_lcb->conn_update_mask &= ~L2C_BLE_UPDATE_PENDING;
650
651 btu_stop_timer (&p_lcb->upda_con_timer);
652
653 if (conn_param_update_cb.update_conn_param_cb != NULL) {
654 l2c_send_update_conn_params_cb(p_lcb, status);
655 }
656 if ((p_lcb->conn_update_mask & L2C_BLE_UPDATE_PARAM_FULL) != 0){
657 p_lcb->conn_update_mask &= ~L2C_BLE_UPDATE_PARAM_FULL;
658 if (l2cble_start_conn_update(p_lcb) == TRUE) {
659 UINT32 time = CalConnectParamTimeout(p_lcb);
660 btu_start_timer(&p_lcb->upda_con_timer, BTU_TTYPE_L2CAP_UPDA_CONN_PARAMS, time);
661 }
662 }
663
664 }
665
666 /*******************************************************************************
667 **
668 ** Function l2cble_process_sig_cmd
669 **
670 ** Description This function is called when a signalling packet is received
671 ** on the BLE signalling CID
672 **
673 ** Returns void
674 **
675 *******************************************************************************/
l2cble_process_sig_cmd(tL2C_LCB * p_lcb,UINT8 * p,UINT16 pkt_len)676 void l2cble_process_sig_cmd (tL2C_LCB *p_lcb, UINT8 *p, UINT16 pkt_len)
677 {
678 UINT8 *p_pkt_end;
679 UINT8 cmd_code, id;
680 UINT16 cmd_len;
681 UINT16 min_interval, max_interval, latency, timeout;
682
683 p_pkt_end = p + pkt_len;
684
685 STREAM_TO_UINT8 (cmd_code, p);
686 STREAM_TO_UINT8 (id, p);
687 STREAM_TO_UINT16 (cmd_len, p);
688
689 /* Check command length does not exceed packet length */
690 if ((p + cmd_len) > p_pkt_end) {
691 L2CAP_TRACE_WARNING ("L2CAP - LE - format error, pkt_len: %d cmd_len: %d code: %d", pkt_len, cmd_len, cmd_code);
692 return;
693 }
694
695 switch (cmd_code) {
696 case L2CAP_CMD_REJECT:
697 case L2CAP_CMD_ECHO_RSP:
698 case L2CAP_CMD_INFO_RSP:
699 p += 2;
700 break;
701 case L2CAP_CMD_ECHO_REQ:
702 case L2CAP_CMD_INFO_REQ:
703 l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_NOT_UNDERSTOOD, id, 0, 0);
704 break;
705
706 case L2CAP_CMD_BLE_UPDATE_REQ:
707 STREAM_TO_UINT16 (min_interval, p); /* 0x0006 - 0x0C80 */
708 STREAM_TO_UINT16 (max_interval, p); /* 0x0006 - 0x0C80 */
709 STREAM_TO_UINT16 (latency, p); /* 0x0000 - 0x03E8 */
710 STREAM_TO_UINT16 (timeout, p); /* 0x000A - 0x0C80 */
711 /* If we are a master, the slave wants to update the parameters */
712 if (p_lcb->link_role == HCI_ROLE_MASTER) {
713 if (min_interval < BTM_BLE_CONN_INT_MIN || min_interval > BTM_BLE_CONN_INT_MAX ||
714 max_interval < BTM_BLE_CONN_INT_MIN || max_interval > BTM_BLE_CONN_INT_MAX ||
715 latency > BTM_BLE_CONN_LATENCY_MAX ||
716 timeout < BTM_BLE_CONN_SUP_TOUT_MIN || timeout > BTM_BLE_CONN_SUP_TOUT_MAX ||
717 /* The supervision_timeout parameter defines the link supervision timeout for the connection.
718 The supervision_timeout in milliseconds shall be large than (1 + latency) * max_interval * 2,
719 where max_interval is given in milliseconds. (See [Vol 6] Part B, Section 4.5.2).
720 supervision_timeout (mult of 10ms); conn_interval (mult of 1.25ms)
721 (max_interval * 1.25 * 2) replaced by ((max_interval * 5) >> 1).
722 */
723 ((timeout * 10) < ((1 + latency) *((max_interval * 5) >> 1))) ||
724 max_interval < min_interval) {
725 l2cu_send_peer_ble_par_rsp (p_lcb, L2CAP_CFG_UNACCEPTABLE_PARAMS, id);
726
727 L2CAP_TRACE_ERROR("slave connection parameters update failed, the parameters are out of range");
728
729 } else {
730
731 l2cu_send_peer_ble_par_rsp (p_lcb, L2CAP_CFG_OK, id);
732 p_lcb->waiting_update_conn_min_interval = min_interval;
733 p_lcb->waiting_update_conn_max_interval = max_interval;
734 p_lcb->waiting_update_conn_latency = latency;
735 p_lcb->waiting_update_conn_timeout = timeout;
736 p_lcb->conn_update_mask |= L2C_BLE_NEW_CONN_PARAM;
737
738 if (l2cble_start_conn_update(p_lcb) == TRUE) {
739 UINT32 time = CalConnectParamTimeout(p_lcb);
740 btu_start_timer(&p_lcb->upda_con_timer, BTU_TTYPE_L2CAP_UPDA_CONN_PARAMS, time);
741 }
742 }
743 } else {
744 l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_NOT_UNDERSTOOD, id, 0, 0);
745 }
746 break;
747
748 case L2CAP_CMD_BLE_UPDATE_RSP: {
749 UINT16 result = 0;
750 STREAM_TO_UINT16(result, p); //result = 0 connection param accepted, result = 1 connection param rejected.
751 UINT8 status = (result == 0) ? HCI_SUCCESS : HCI_ERR_PARAM_OUT_OF_RANGE;
752 if (status != HCI_SUCCESS) {
753 btu_stop_timer(&p_lcb->upda_con_timer);
754 p_lcb->conn_update_mask &= ~L2C_BLE_UPDATE_PENDING;
755 p_lcb->conn_update_mask &= ~L2C_BLE_UPDATE_PARAM_FULL;
756 l2c_send_update_conn_params_cb(p_lcb, status);
757 }
758 break;
759 }
760 default:
761 L2CAP_TRACE_WARNING ("L2CAP - LE - unknown cmd code: %d", cmd_code);
762 l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_NOT_UNDERSTOOD, id, 0, 0);
763 return;
764 }
765 }
766
767 /*******************************************************************************
768 **
769 ** Function l2cble_init_direct_conn
770 **
771 ** Description This function is to initate a direct connection
772 **
773 ** Returns TRUE connection initiated, FALSE otherwise.
774 **
775 *******************************************************************************/
l2cble_init_direct_conn(tL2C_LCB * p_lcb)776 BOOLEAN l2cble_init_direct_conn (tL2C_LCB *p_lcb)
777 {
778 #if ( (defined BLE_PRIVACY_SPT) && (BLE_PRIVACY_SPT == TRUE) && (!CONTROLLER_RPA_LIST_ENABLE))
779 //check for security device information in the cache
780 bool dev_rec_exist = true;
781 tBTM_SEC_DEV_REC *find_dev_rec = btm_find_dev (p_lcb->remote_bd_addr);
782 if(find_dev_rec == NULL) {
783 dev_rec_exist = false;
784 }
785
786 #endif // ( (defined BLE_PRIVACY_SPT) && (BLE_PRIVACY_SPT == TRUE) && (!CONTROLLER_RPA_LIST_ENABLE))
787 tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (p_lcb->remote_bd_addr);
788 tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
789 UINT16 scan_int;
790 UINT16 scan_win;
791 BD_ADDR peer_addr;
792 UINT8 peer_addr_type = BLE_ADDR_PUBLIC;
793 UINT8 own_addr_type = BLE_ADDR_PUBLIC;
794
795 /* There can be only one BLE connection request outstanding at a time */
796 if (p_dev_rec == NULL) {
797 L2CAP_TRACE_WARNING ("unknown device, can not initate connection");
798 return (FALSE);
799 }
800
801 scan_int = (p_cb->scan_int == BTM_BLE_SCAN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int;
802 scan_win = (p_cb->scan_win == BTM_BLE_SCAN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win;
803
804 peer_addr_type = p_lcb->ble_addr_type;
805 memcpy(peer_addr, p_lcb->remote_bd_addr, BD_ADDR_LEN);
806
807 #if ( (defined BLE_PRIVACY_SPT) && (BLE_PRIVACY_SPT == TRUE))
808 own_addr_type = btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type;
809 #if (!CONTROLLER_RPA_LIST_ENABLE)
810 if(dev_rec_exist) {
811 // if the current address information is valid, get the real address information
812 if(p_dev_rec->ble.current_addr_valid) {
813 peer_addr_type = p_dev_rec->ble.current_addr_type;
814 memcpy(peer_addr, p_dev_rec->ble.current_addr, 6);
815 } else {
816 /* find security device information but not find the real address information
817 * This state may be directly open without scanning. In this case, you must
818 * use the current adv address of the device to open*/
819 }
820 } else {
821 //not find security device information, We think this is a new device, connect directly
822 }
823
824 /* It will cause that scanner doesn't send scan request to advertiser
825 * which has sent IRK to us and we have stored the IRK in controller.
826 * It is a hardware limitation. The preliminary solution is not to
827 * send key to the controller, but to resolve the random address in host.
828 * so we need send the real address information to controller. */
829
830 #endif // (!CONTROLLER_RPA_LIST_ENABLE)
831
832 #if (CONTROLLER_RPA_LIST_ENABLE && CONFIG_BT_CTRL_ESP32)
833
834 if (p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) {
835 if (btm_cb.ble_ctr_cb.privacy_mode >= BTM_PRIVACY_1_2) {
836 own_addr_type |= BLE_ADDR_TYPE_ID_BIT;
837 }
838
839 //btm_ble_enable_resolving_list(BTM_BLE_RL_INIT);
840 btm_random_pseudo_to_identity_addr(peer_addr, &peer_addr_type);
841 } else {
842 btm_ble_disable_resolving_list(BTM_BLE_RL_INIT, TRUE);
843 }
844
845 #endif // CONTROLLER_RPA_LIST_ENABLE
846 #endif // (defined BLE_PRIVACY_SPT) && (BLE_PRIVACY_SPT == TRUE)
847
848 if (!btm_ble_topology_check(BTM_BLE_STATE_INIT)) {
849 l2cu_release_lcb (p_lcb);
850 L2CAP_TRACE_ERROR("initate direct connection fail, topology limitation");
851 return FALSE;
852 }
853 uint32_t link_timeout = L2CAP_BLE_LINK_CONNECT_TOUT;
854 if(GATTC_CONNECT_RETRY_COUNT) {
855 if(!p_lcb->retry_create_con) {
856 p_lcb->start_time_s = (esp_system_get_time()/1000);
857 }
858 uint32_t current_time = (esp_system_get_time()/1000);
859 link_timeout = (L2CAP_BLE_LINK_CONNECT_TOUT*1000 - (current_time - p_lcb->start_time_s))/1000;
860
861 if(link_timeout == 0 || link_timeout > L2CAP_BLE_LINK_CONNECT_TOUT) {
862 link_timeout = L2CAP_BLE_LINK_CONNECT_TOUT;
863 }
864 }
865
866 if (!p_lcb->is_aux) {
867 if (!btsnd_hcic_ble_create_ll_conn (scan_int,/* UINT16 scan_int */
868 scan_win, /* UINT16 scan_win */
869 FALSE, /* UINT8 white_list */
870 peer_addr_type, /* UINT8 addr_type_peer */
871 peer_addr, /* BD_ADDR bda_peer */
872 own_addr_type, /* UINT8 addr_type_own */
873 (UINT16) ((p_dev_rec->conn_params.min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ?
874 p_dev_rec->conn_params.min_conn_int : BTM_BLE_CONN_INT_MIN_DEF), /* UINT16 conn_int_min */
875 (UINT16) ((p_dev_rec->conn_params.max_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ?
876 p_dev_rec->conn_params.max_conn_int : BTM_BLE_CONN_INT_MAX_DEF), /* UINT16 conn_int_max */
877 (UINT16) ((p_dev_rec->conn_params.slave_latency != BTM_BLE_CONN_PARAM_UNDEF) ?
878 p_dev_rec->conn_params.slave_latency : BTM_BLE_CONN_SLAVE_LATENCY_DEF), /* UINT16 conn_latency */
879 (UINT16) ((p_dev_rec->conn_params.supervision_tout != BTM_BLE_CONN_PARAM_UNDEF) ?
880 p_dev_rec->conn_params.supervision_tout : BTM_BLE_CONN_TIMEOUT_DEF), /* conn_timeout */
881 BLE_CE_LEN_MIN, /* UINT16 min_len */
882 BLE_CE_LEN_MIN)) { /* UINT16 max_len */
883 l2cu_release_lcb (p_lcb);
884 L2CAP_TRACE_ERROR("initate direct connection fail, no resources");
885 return (FALSE);
886 } else {
887 p_lcb->link_state = LST_CONNECTING;
888 l2cb.is_ble_connecting = TRUE;
889 memcpy (l2cb.ble_connecting_bda, p_lcb->remote_bd_addr, BD_ADDR_LEN);
890 btu_start_timer (&p_lcb->timer_entry, BTU_TTYPE_L2CAP_LINK, link_timeout);
891 btm_ble_set_conn_st (BLE_DIR_CONN);
892
893 return (TRUE);
894 }
895 } else {
896 #if (BLE_50_FEATURE_SUPPORT == TRUE)
897
898 /*
899 * 0x00 Public Device Address
900 * 0x01 Random Device Address
901 * 0x02 Public Identity Address (corresponds to Resolved Private Address)
902 * 0x03 Random (static) Identity Address (corresponds to Resolved Private Address)
903 * 0xFF No address provided (anonymous advertisement)
904 */
905
906 if ((peer_addr_type & BLE_ADDR_RANDOM) == BLE_ADDR_RANDOM) {
907 peer_addr_type = BLE_ADDR_RANDOM;
908 } else {
909 peer_addr_type = BLE_ADDR_PUBLIC;
910 }
911
912 tHCI_CreatExtConn aux_conn = {0};
913 aux_conn.filter_policy = FALSE;
914 aux_conn.own_addr_type = own_addr_type;
915 aux_conn.peer_addr_type = peer_addr_type;
916 memcpy(aux_conn.peer_addr, peer_addr, sizeof(BD_ADDR));
917 if (p_dev_rec->ext_conn_params.phy_mask == BLE_PHY_NO_PREF) {
918 L2CAP_TRACE_WARNING("No extend connection parameters set, use default parameters");
919 aux_conn.init_phy_mask = BLE_PHY_PREF_MASK;
920 memcpy(&aux_conn.params[0], &ext_conn_params, sizeof(tHCI_ExtConnParams));
921 memcpy(&aux_conn.params[1], &ext_conn_params, sizeof(tHCI_ExtConnParams));
922 memcpy(&aux_conn.params[2], &ext_conn_params, sizeof(tHCI_ExtConnParams));
923 } else {
924 aux_conn.init_phy_mask = p_dev_rec->ext_conn_params.phy_mask;
925 memcpy(&aux_conn.params[0], &p_dev_rec->ext_conn_params.phy_1m_conn_params, sizeof(tHCI_ExtConnParams));
926 memcpy(&aux_conn.params[1], &p_dev_rec->ext_conn_params.phy_2m_conn_params, sizeof(tHCI_ExtConnParams));
927 memcpy(&aux_conn.params[2], &p_dev_rec->ext_conn_params.phy_coded_conn_params, sizeof(tHCI_ExtConnParams));
928 }
929 p_lcb->link_state = LST_CONNECTING;
930 l2cb.is_ble_connecting = TRUE;
931 memcpy (l2cb.ble_connecting_bda, p_lcb->remote_bd_addr, BD_ADDR_LEN);
932 btu_start_timer (&p_lcb->timer_entry, BTU_TTYPE_L2CAP_LINK, link_timeout);
933 btm_ble_set_conn_st (BLE_DIR_CONN);
934 if(!btsnd_hcic_ble_create_ext_conn(&aux_conn)) {
935 l2cu_release_lcb (p_lcb);
936 L2CAP_TRACE_ERROR("initate Aux connection failed, no resources");
937 }
938 #else
939 L2CAP_TRACE_ERROR("BLE 5.0 not support!\n");
940 #endif // #if (BLE_50_FEATURE_SUPPORT == TRUE)
941 return (TRUE);
942 }
943 }
944
945 /*******************************************************************************
946 **
947 ** Function l2cble_create_conn
948 **
949 ** Description This function initiates an acl connection via HCI
950 **
951 ** Returns TRUE if successful, FALSE if connection not started.
952 **
953 *******************************************************************************/
l2cble_create_conn(tL2C_LCB * p_lcb)954 BOOLEAN l2cble_create_conn (tL2C_LCB *p_lcb)
955 {
956 tBTM_BLE_CONN_ST conn_st = btm_ble_get_conn_st();
957 BOOLEAN rt = FALSE;
958
959 /* There can be only one BLE connection request outstanding at a time */
960 if (conn_st == BLE_CONN_IDLE) {
961 rt = l2cble_init_direct_conn(p_lcb);
962 } else {
963 L2CAP_TRACE_WARNING ("L2CAP - LE - cannot start new connection at conn st: %d", conn_st);
964
965 btm_ble_enqueue_direct_conn_req(p_lcb);
966
967 if (conn_st == BLE_BG_CONN) {
968 btm_ble_suspend_bg_conn();
969 }
970
971 rt = TRUE;
972 }
973 return rt;
974 }
975
976 /*******************************************************************************
977 **
978 ** Function l2c_link_processs_ble_num_bufs
979 **
980 ** Description This function is called when a "controller buffer size"
981 ** event is first received from the controller. It updates
982 ** the L2CAP values.
983 **
984 ** Returns void
985 **
986 *******************************************************************************/
l2c_link_processs_ble_num_bufs(UINT16 num_lm_ble_bufs)987 void l2c_link_processs_ble_num_bufs (UINT16 num_lm_ble_bufs)
988 {
989 if (num_lm_ble_bufs == 0) {
990 num_lm_ble_bufs = L2C_DEF_NUM_BLE_BUF_SHARED;
991 l2cb.num_lm_acl_bufs -= L2C_DEF_NUM_BLE_BUF_SHARED;
992 }
993 L2CAP_TRACE_DEBUG("num_lm_ble_bufs = %d",num_lm_ble_bufs);
994 l2cb.num_lm_ble_bufs = l2cb.controller_le_xmit_window = num_lm_ble_bufs;
995 }
996
997 /*******************************************************************************
998 **
999 ** Function l2c_ble_link_adjust_allocation
1000 **
1001 ** Description This function is called when a link is created or removed
1002 ** to calculate the amount of packets each link may send to
1003 ** the HCI without an ack coming back.
1004 **
1005 ** Currently, this is a simple allocation, dividing the
1006 ** number of Controller Packets by the number of links. In
1007 ** the future, QOS configuration should be examined.
1008 **
1009 ** Returns void
1010 **
1011 *******************************************************************************/
l2c_ble_link_adjust_allocation(void)1012 void l2c_ble_link_adjust_allocation (void)
1013 {
1014 UINT16 qq, yy = 0, qq_remainder;
1015 tL2C_LCB *p_lcb;
1016 UINT16 hi_quota, low_quota;
1017 UINT16 num_lowpri_links = 0;
1018 UINT16 num_hipri_links = 0;
1019 UINT16 controller_xmit_quota = l2cb.num_lm_ble_bufs;
1020 UINT16 high_pri_link_quota = L2CAP_HIGH_PRI_MIN_XMIT_QUOTA_A;
1021 list_node_t *p_node = NULL;
1022
1023 /* If no links active, reset buffer quotas and controller buffers */
1024 if (l2cb.num_ble_links_active == 0) {
1025 l2cb.controller_le_xmit_window = l2cb.num_lm_ble_bufs;
1026 l2cb.ble_round_robin_quota = l2cb.ble_round_robin_unacked = 0;
1027 return;
1028 }
1029
1030 /* First, count the links */
1031 for (p_node = list_begin(l2cb.p_lcb_pool); p_node; p_node = list_next(p_node)) {
1032 p_lcb = list_node(p_node);
1033 if (p_lcb->in_use && p_lcb->transport == BT_TRANSPORT_LE) {
1034 if (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH) {
1035 num_hipri_links++;
1036 } else {
1037 num_lowpri_links++;
1038 }
1039 }
1040 }
1041
1042 /* now adjust high priority link quota */
1043 low_quota = num_lowpri_links ? 1 : 0;
1044 while ( (num_hipri_links * high_pri_link_quota + low_quota) > controller_xmit_quota ) {
1045 high_pri_link_quota--;
1046 }
1047
1048
1049 /* Work out the xmit quota and buffer quota high and low priorities */
1050 hi_quota = num_hipri_links * high_pri_link_quota;
1051 low_quota = (hi_quota < controller_xmit_quota) ? controller_xmit_quota - hi_quota : 1;
1052
1053 /* Work out and save the HCI xmit quota for each low priority link */
1054
1055 /* If each low priority link cannot have at least one buffer */
1056 if (num_lowpri_links > low_quota) {
1057 l2cb.ble_round_robin_quota = low_quota;
1058 qq = qq_remainder = 0;
1059 }
1060 /* If each low priority link can have at least one buffer */
1061 else if (num_lowpri_links > 0) {
1062 l2cb.ble_round_robin_quota = 0;
1063 l2cb.ble_round_robin_unacked = 0;
1064 qq = low_quota / num_lowpri_links;
1065 qq_remainder = low_quota % num_lowpri_links;
1066 }
1067 /* If no low priority link */
1068 else {
1069 l2cb.ble_round_robin_quota = 0;
1070 l2cb.ble_round_robin_unacked = 0;
1071 qq = qq_remainder = 0;
1072 }
1073 L2CAP_TRACE_EVENT ("l2c_ble_link_adjust_allocation num_hipri: %u num_lowpri: %u low_quota: %u round_robin_quota: %u qq: %u",
1074 num_hipri_links, num_lowpri_links, low_quota,
1075 l2cb.ble_round_robin_quota, qq);
1076
1077 /* Now, assign the quotas to each link */
1078 p_node = NULL;
1079 for (p_node = list_begin(l2cb.p_lcb_pool); p_node; p_node = list_next(p_node)) {
1080 p_lcb = list_node(p_node);
1081 if (p_lcb->in_use && p_lcb->transport == BT_TRANSPORT_LE) {
1082 if (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH) {
1083 p_lcb->link_xmit_quota = high_pri_link_quota;
1084 } else {
1085 /* Safety check in case we switched to round-robin with something outstanding */
1086 /* if sent_not_acked is added into round_robin_unacked then don't add it again */
1087 /* l2cap keeps updating sent_not_acked for exiting from round robin */
1088 if (( p_lcb->link_xmit_quota > 0 ) && ( qq == 0 )) {
1089 l2cb.ble_round_robin_unacked += p_lcb->sent_not_acked;
1090 }
1091
1092 p_lcb->link_xmit_quota = qq;
1093 if (qq_remainder > 0) {
1094 p_lcb->link_xmit_quota++;
1095 qq_remainder--;
1096 }
1097 }
1098
1099 L2CAP_TRACE_EVENT("l2c_ble_link_adjust_allocation LCB %d Priority: %d XmitQuota: %d",
1100 yy, p_lcb->acl_priority, p_lcb->link_xmit_quota);
1101
1102 L2CAP_TRACE_EVENT(" SentNotAcked: %d RRUnacked: %d",
1103 p_lcb->sent_not_acked, l2cb.round_robin_unacked);
1104
1105 /* There is a special case where we have readjusted the link quotas and */
1106 /* this link may have sent anything but some other link sent packets so */
1107 /* so we may need a timer to kick off this link's transmissions. */
1108 if ( (p_lcb->link_state == LST_CONNECTED)
1109 && (!list_is_empty(p_lcb->link_xmit_data_q))
1110 && (p_lcb->sent_not_acked < p_lcb->link_xmit_quota) ) {
1111 btu_start_timer (&p_lcb->timer_entry, BTU_TTYPE_L2CAP_LINK, L2CAP_LINK_FLOW_CONTROL_TOUT);
1112 }
1113 }
1114 }
1115 }
1116
1117 #if (defined BLE_LLT_INCLUDED) && (BLE_LLT_INCLUDED == TRUE)
1118 /*******************************************************************************
1119 **
1120 ** Function l2cble_process_rc_param_request_evt
1121 **
1122 ** Description process LE Remote Connection Parameter Request Event.
1123 **
1124 ** Returns void
1125 **
1126 *******************************************************************************/
l2cble_process_rc_param_request_evt(UINT16 handle,UINT16 int_min,UINT16 int_max,UINT16 latency,UINT16 timeout)1127 void l2cble_process_rc_param_request_evt(UINT16 handle, UINT16 int_min, UINT16 int_max,
1128 UINT16 latency, UINT16 timeout)
1129 {
1130 tL2C_LCB *p_lcb = l2cu_find_lcb_by_handle (handle);
1131
1132 if (p_lcb != NULL) {
1133
1134 /* if update is enabled, always accept connection parameter update */
1135 if ((p_lcb->conn_update_mask & L2C_BLE_CONN_UPDATE_DISABLE) == 0) {
1136 p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PENDING;
1137 btsnd_hcic_ble_rc_param_req_reply(handle, int_min, int_max, latency, timeout, BLE_CE_LEN_MIN, BLE_CE_LEN_MIN);
1138 }else {
1139 /* always accept connection parameters request which is sent by itself */
1140 if (int_max == BTM_BLE_CONN_INT_MIN) {
1141 p_lcb->conn_update_mask |= L2C_BLE_UPDATE_PENDING;
1142 btsnd_hcic_ble_rc_param_req_reply(handle, int_min, int_max, latency, timeout, BLE_CE_LEN_MIN, BLE_CE_LEN_MIN);
1143 }else {
1144 L2CAP_TRACE_EVENT ("L2CAP - LE - update currently disabled");
1145 p_lcb->conn_update_mask |= L2C_BLE_NEW_CONN_PARAM;
1146 btsnd_hcic_ble_rc_param_req_neg_reply (handle, HCI_ERR_UNACCEPT_CONN_INTERVAL);
1147 }
1148 }
1149
1150 } else {
1151 L2CAP_TRACE_WARNING("No link to update connection parameter")
1152 }
1153 }
1154 #endif
1155
1156 /*******************************************************************************
1157 **
1158 ** Function l2cble_update_data_length
1159 **
1160 ** Description This function update link tx data length if applicable
1161 **
1162 ** Returns void
1163 **
1164 *******************************************************************************/
l2cble_update_data_length(tL2C_LCB * p_lcb)1165 void l2cble_update_data_length(tL2C_LCB *p_lcb)
1166 {
1167 UINT16 tx_mtu = 0;
1168 UINT16 i = 0;
1169
1170 L2CAP_TRACE_DEBUG("%s", __FUNCTION__);
1171
1172 /* See if we have a link control block for the connection */
1173 if (p_lcb == NULL) {
1174 return;
1175 }
1176
1177 for (i = 0; i < L2CAP_NUM_FIXED_CHNLS; i++) {
1178 if (i + L2CAP_FIRST_FIXED_CHNL != L2CAP_BLE_SIGNALLING_CID) {
1179 if ((p_lcb->p_fixed_ccbs[i] != NULL) &&
1180 (tx_mtu < (p_lcb->p_fixed_ccbs[i]->tx_data_len + L2CAP_PKT_OVERHEAD))) {
1181 tx_mtu = p_lcb->p_fixed_ccbs[i]->tx_data_len + L2CAP_PKT_OVERHEAD;
1182 }
1183 }
1184 }
1185
1186 if (tx_mtu > BTM_BLE_DATA_SIZE_MAX) {
1187 tx_mtu = BTM_BLE_DATA_SIZE_MAX;
1188 }
1189
1190 /* update TX data length if changed */
1191 if (p_lcb->tx_data_len != tx_mtu) {
1192 BTM_SetBleDataLength(p_lcb->remote_bd_addr, tx_mtu);
1193 }
1194
1195 }
1196
1197 /*******************************************************************************
1198 **
1199 ** Function l2cble_process_data_length_change_evt
1200 **
1201 ** Description This function process the data length change event
1202 **
1203 ** Returns void
1204 **
1205 *******************************************************************************/
l2cble_process_data_length_change_event(UINT16 handle,UINT16 tx_data_len,UINT16 rx_data_len)1206 void l2cble_process_data_length_change_event(UINT16 handle, UINT16 tx_data_len, UINT16 rx_data_len)
1207 {
1208 tL2C_LCB *p_lcb = l2cu_find_lcb_by_handle(handle);
1209
1210 L2CAP_TRACE_DEBUG("%s TX data len = %d", __FUNCTION__, tx_data_len);
1211 if (p_lcb == NULL) {
1212 return;
1213 }
1214
1215 if (tx_data_len > 0) {
1216 p_lcb->tx_data_len = tx_data_len;
1217 }
1218
1219 tACL_CONN *p_acl = btm_handle_to_acl(handle);
1220 if (p_acl != NULL && p_acl->p_set_pkt_data_cback){
1221 tBTM_LE_SET_PKT_DATA_LENGTH_PARAMS data_length_params;
1222 data_length_params.rx_len = tx_data_len;
1223 data_length_params.tx_len = rx_data_len;
1224 p_acl->data_length_params = data_length_params;
1225 (*p_acl->p_set_pkt_data_cback)(BTM_SUCCESS, &data_length_params);
1226 }
1227 }
1228
1229 /*******************************************************************************
1230 **
1231 ** Function l2cble_set_fixed_channel_tx_data_length
1232 **
1233 ** Description This function update max fixed channel tx data length if applicable
1234 **
1235 ** Returns void
1236 **
1237 *******************************************************************************/
l2cble_set_fixed_channel_tx_data_length(BD_ADDR remote_bda,UINT16 fix_cid,UINT16 tx_mtu)1238 void l2cble_set_fixed_channel_tx_data_length(BD_ADDR remote_bda, UINT16 fix_cid, UINT16 tx_mtu)
1239 {
1240 tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(remote_bda, BT_TRANSPORT_LE);
1241 UINT16 cid = fix_cid - L2CAP_FIRST_FIXED_CHNL;
1242
1243 L2CAP_TRACE_DEBUG("%s TX MTU = %d", __FUNCTION__, tx_mtu);
1244
1245 if (!controller_get_interface()->supports_ble_packet_extension()) {
1246 L2CAP_TRACE_WARNING("%s, request not supported", __FUNCTION__);
1247 return;
1248 }
1249
1250 /* See if we have a link control block for the connection */
1251 if (p_lcb == NULL) {
1252 return;
1253 }
1254
1255 if (p_lcb->p_fixed_ccbs[cid] != NULL) {
1256 if (tx_mtu > BTM_BLE_DATA_SIZE_MAX) {
1257 tx_mtu = BTM_BLE_DATA_SIZE_MAX;
1258 }
1259
1260 p_lcb->p_fixed_ccbs[cid]->tx_data_len = tx_mtu;
1261 }
1262
1263 l2cble_update_data_length(p_lcb);
1264 }
1265
1266
1267 /*******************************************************************************
1268 **
1269 ** Function l2c_send_update_conn_params_cb
1270 **
1271 ** Description This function send the update connection parameter callback to the uplayer.
1272 **
1273 ** Returns void
1274 **
1275 *******************************************************************************/
l2c_send_update_conn_params_cb(tL2C_LCB * p_lcb,UINT8 status)1276 void l2c_send_update_conn_params_cb(tL2C_LCB *p_lcb, UINT8 status)
1277 {
1278 if(conn_param_update_cb.update_conn_param_cb != NULL){
1279 tBTM_LE_UPDATE_CONN_PRAMS update_param;
1280 //if myself update the connection parameters
1281 if (p_lcb->updating_param_flag){
1282 update_param.max_conn_int = p_lcb->updating_conn_max_interval;
1283 update_param.min_conn_int = p_lcb->updating_conn_min_interval;
1284 p_lcb->updating_param_flag = false;
1285 }else{
1286 // remote device update the connection parameters
1287 update_param.max_conn_int = update_param.min_conn_int = 0;
1288 }
1289 // current connection parameters
1290 update_param.conn_int = p_lcb->current_used_conn_interval;
1291 update_param.slave_latency = p_lcb->current_used_conn_latency;
1292 update_param.supervision_tout = p_lcb->current_used_conn_timeout;
1293
1294 (conn_param_update_cb.update_conn_param_cb)(status, p_lcb->remote_bd_addr, &update_param);
1295 }
1296 }
1297
1298 /*******************************************************************************
1299 **
1300 ** Function CalConnectParamTimeout
1301 **
1302 ** Description This function is called to calculate the connection parameter timeout.
1303 **
1304 ** Returns timeout
1305 **
1306 *******************************************************************************/
CalConnectParamTimeout(tL2C_LCB * p_lcb)1307 UINT32 CalConnectParamTimeout(tL2C_LCB *p_lcb)
1308 {
1309 UINT32 timeout = 6;
1310 if (p_lcb != NULL){
1311 //1.25 * conn_int *(1+ latency) *32
1312 timeout = (40 * ( 1 + p_lcb->current_used_conn_latency) * p_lcb->current_used_conn_interval + 1000) / 1000;
1313 if (timeout < 1){
1314 timeout = 1;
1315 }else if (timeout > 120){
1316 timeout = 120;
1317 }
1318 }
1319 return timeout;
1320 }
1321
1322 /*******************************************************************************
1323 **
1324 ** Function l2cble_credit_based_conn_req
1325 **
1326 ** Description This function sends LE Credit Based Connection Request for
1327 ** LE connection oriented channels.
1328 **
1329 ** Returns void
1330 **
1331 *******************************************************************************/
l2cble_credit_based_conn_req(tL2C_CCB * p_ccb)1332 void l2cble_credit_based_conn_req (tL2C_CCB *p_ccb)
1333 {
1334 if (!p_ccb) {
1335 return;
1336 }
1337
1338 if (p_ccb->p_lcb && p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
1339 {
1340 L2CAP_TRACE_WARNING ("LE link doesn't exist");
1341 return;
1342 }
1343
1344 l2cu_send_peer_ble_credit_based_conn_req (p_ccb);
1345 return;
1346 }
1347
1348 /*******************************************************************************
1349 **
1350 ** Function l2cble_credit_based_conn_res
1351 **
1352 ** Description This function sends LE Credit Based Connection Response for
1353 ** LE connection oriented channels.
1354 **
1355 ** Returns void
1356 **
1357 *******************************************************************************/
l2cble_credit_based_conn_res(tL2C_CCB * p_ccb,UINT16 result)1358 void l2cble_credit_based_conn_res (tL2C_CCB *p_ccb, UINT16 result)
1359 {
1360 if (!p_ccb) {
1361 return;
1362 }
1363
1364 if (p_ccb->p_lcb && p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
1365 {
1366 L2CAP_TRACE_WARNING ("LE link doesn't exist");
1367 return;
1368 }
1369
1370 l2cu_send_peer_ble_credit_based_conn_res (p_ccb, result);
1371 return;
1372 }
1373
1374 /*******************************************************************************
1375 **
1376 ** Function l2cble_send_flow_control_credit
1377 **
1378 ** Description This function sends flow control credits for
1379 ** LE connection oriented channels.
1380 **
1381 ** Returns void
1382 **
1383 *******************************************************************************/
l2cble_send_flow_control_credit(tL2C_CCB * p_ccb,UINT16 credit_value)1384 void l2cble_send_flow_control_credit(tL2C_CCB *p_ccb, UINT16 credit_value)
1385 {
1386 if (!p_ccb) {
1387 return;
1388 }
1389
1390 if (p_ccb->p_lcb && p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
1391 {
1392 L2CAP_TRACE_WARNING ("LE link doesn't exist");
1393 return;
1394 }
1395
1396 l2cu_send_peer_ble_flow_control_credit(p_ccb, credit_value);
1397 return;
1398
1399 }
1400
1401 /*******************************************************************************
1402 **
1403 ** Function l2cble_send_peer_disc_req
1404 **
1405 ** Description This function sends disconnect request
1406 ** to the peer LE device
1407 **
1408 ** Returns void
1409 **
1410 *******************************************************************************/
l2cble_send_peer_disc_req(tL2C_CCB * p_ccb)1411 void l2cble_send_peer_disc_req(tL2C_CCB *p_ccb)
1412 {
1413 L2CAP_TRACE_DEBUG ("%s",__func__);
1414 if (!p_ccb) {
1415 return;
1416 }
1417
1418 if (p_ccb->p_lcb && p_ccb->p_lcb->transport != BT_TRANSPORT_LE)
1419 {
1420 L2CAP_TRACE_WARNING ("LE link doesn't exist");
1421 return;
1422 }
1423
1424 l2cu_send_peer_ble_credit_based_disconn_req(p_ccb);
1425 return;
1426 }
1427
1428 #if (SMP_INCLUDED == TRUE)
1429 /*******************************************************************************
1430 **
1431 ** Function l2cble_sec_comp
1432 **
1433 ** Description This function is called when security procedure for an LE COC
1434 ** link is done
1435 **
1436 ** Returns void
1437 **
1438 *******************************************************************************/
l2cble_sec_comp(BD_ADDR p_bda,tBT_TRANSPORT transport,void * p_ref_data,UINT8 status)1439 void l2cble_sec_comp(BD_ADDR p_bda, tBT_TRANSPORT transport, void *p_ref_data, UINT8 status)
1440 {
1441 tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(p_bda, BT_TRANSPORT_LE);
1442 tL2CAP_SEC_DATA *p_buf = NULL;
1443 UINT8 sec_flag;
1444 UINT8 sec_act;
1445
1446 if (!p_lcb)
1447 {
1448 L2CAP_TRACE_WARNING ("%s security complete for unknown device", __func__);
1449 return;
1450 }
1451
1452 sec_act = p_lcb->sec_act;
1453 p_lcb->sec_act = 0;
1454
1455 if (!fixed_queue_is_empty(p_lcb->le_sec_pending_q))
1456 {
1457 p_buf = (tL2CAP_SEC_DATA*) fixed_queue_dequeue(p_lcb->le_sec_pending_q, FIXED_QUEUE_MAX_TIMEOUT);
1458 if (!p_buf)
1459 {
1460 L2CAP_TRACE_WARNING ("%s Security complete for request not initiated from L2CAP",
1461 __func__);
1462 return;
1463 }
1464
1465 if (status != BTM_SUCCESS)
1466 {
1467 (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data, status);
1468 }
1469 else
1470 {
1471 if (sec_act == BTM_SEC_ENCRYPT_MITM)
1472 {
1473 BTM_GetSecurityFlagsByTransport(p_bda, &sec_flag, transport);
1474 if (sec_flag & BTM_SEC_FLAG_LKEY_AUTHED) {
1475 (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data, status);
1476 }
1477 else
1478 {
1479 L2CAP_TRACE_DEBUG ("%s MITM Protection Not present", __func__);
1480 (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data,
1481 BTM_FAILED_ON_SECURITY);
1482 }
1483 }
1484 else
1485 {
1486 L2CAP_TRACE_DEBUG ("%s MITM Protection not required sec_act = %d",
1487 __func__, p_lcb->sec_act);
1488
1489 (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data, status);
1490 }
1491 }
1492 }
1493 else
1494 {
1495 L2CAP_TRACE_WARNING ("%s Security complete for request not initiated from L2CAP", __func__);
1496 return;
1497 }
1498 osi_free(p_buf);
1499
1500 while (!fixed_queue_is_empty(p_lcb->le_sec_pending_q))
1501 {
1502 p_buf = (tL2CAP_SEC_DATA*) fixed_queue_dequeue(p_lcb->le_sec_pending_q, FIXED_QUEUE_MAX_TIMEOUT);
1503
1504 if (status != BTM_SUCCESS) {
1505 (*(p_buf->p_callback))(p_bda, BT_TRANSPORT_LE, p_buf->p_ref_data, status);
1506 } else {
1507 l2ble_sec_access_req(p_bda, p_buf->psm, p_buf->is_originator,
1508 p_buf->p_callback, p_buf->p_ref_data);
1509 }
1510
1511 osi_free(p_buf);
1512 }
1513 }
1514
1515 /*******************************************************************************
1516 **
1517 ** Function l2ble_sec_access_req
1518 **
1519 ** Description This function is called by LE COC link to meet the
1520 ** security requirement for the link
1521 **
1522 ** Returns TRUE - security procedures are started
1523 ** FALSE - failure
1524 **
1525 *******************************************************************************/
l2ble_sec_access_req(BD_ADDR bd_addr,UINT16 psm,BOOLEAN is_originator,tL2CAP_SEC_CBACK * p_callback,void * p_ref_data)1526 BOOLEAN l2ble_sec_access_req(BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator, tL2CAP_SEC_CBACK *p_callback, void *p_ref_data)
1527 {
1528 L2CAP_TRACE_DEBUG ("%s", __func__);
1529 BOOLEAN status;
1530 tL2C_LCB *p_lcb = NULL;
1531
1532 if (!p_callback)
1533 {
1534 L2CAP_TRACE_ERROR("%s No callback function", __func__);
1535 return FALSE;
1536 }
1537
1538 p_lcb = l2cu_find_lcb_by_bd_addr(bd_addr, BT_TRANSPORT_LE);
1539
1540 if (!p_lcb)
1541 {
1542 L2CAP_TRACE_ERROR ("%s Security check for unknown device", __func__);
1543 p_callback(bd_addr, BT_TRANSPORT_LE, p_ref_data, BTM_UNKNOWN_ADDR);
1544 return FALSE;
1545 }
1546
1547 tL2CAP_SEC_DATA *p_buf = (tL2CAP_SEC_DATA*) osi_malloc((UINT16)sizeof(tL2CAP_SEC_DATA));
1548 if (!p_buf)
1549 {
1550 p_callback(bd_addr, BT_TRANSPORT_LE, p_ref_data, BTM_NO_RESOURCES);
1551 return FALSE;
1552 }
1553
1554 p_buf->psm = psm;
1555 p_buf->is_originator = is_originator;
1556 p_buf->p_callback = p_callback;
1557 p_buf->p_ref_data = p_ref_data;
1558 fixed_queue_enqueue(p_lcb->le_sec_pending_q, p_buf, FIXED_QUEUE_MAX_TIMEOUT);
1559 status = btm_ble_start_sec_check(bd_addr, psm, is_originator, &l2cble_sec_comp, p_ref_data);
1560
1561 return status;
1562 }
1563 #endif /* #if (SMP_INCLUDED == TRUE) */
1564 #endif /* (BLE_INCLUDED == TRUE) */
1565 /*******************************************************************************
1566 **
1567 ** Function L2CA_GetDisconnectReason
1568 **
1569 ** Description This function returns the disconnect reason code.
1570 **
1571 ** Returns disconnect reason
1572 **
1573 *******************************************************************************/
L2CA_GetDisconnectReason(BD_ADDR remote_bda,tBT_TRANSPORT transport)1574 UINT16 L2CA_GetDisconnectReason (BD_ADDR remote_bda, tBT_TRANSPORT transport)
1575 {
1576 tL2C_LCB *p_lcb;
1577 UINT16 reason = 0;
1578
1579 if ((p_lcb = l2cu_find_lcb_by_bd_addr (remote_bda, transport)) != NULL) {
1580 reason = p_lcb->disc_reason;
1581 }
1582
1583 L2CAP_TRACE_DEBUG ("L2CA_GetDisconnectReason=%d ", reason);
1584
1585 return reason;
1586 }
1587
