1 /******************************************************************************
2 *
3 * Copyright (C) 1999-2012 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 main functions to support PAN profile
22 * commands and events.
23 *
24 *****************************************************************************/
25
26 #include "pan_api.h"
27 #include <base/logging.h>
28 #include <string.h>
29 #include "bnep_api.h"
30 #include "bt_common.h"
31 #include "bt_types.h"
32 #include "bta_sys.h"
33 #include "btm_api.h"
34 #include "hcidefs.h"
35 #include "l2c_api.h"
36 #include "pan_int.h"
37 #include "sdp_api.h"
38 #include "sdpdefs.h"
39
40 /*******************************************************************************
41 *
42 * Function PAN_Register
43 *
44 * Description This function is called by the application to register
45 * its callbacks with PAN profile. The application then
46 * should set the PAN role explicitly.
47 *
48 * Parameters: p_register - contains all callback function pointers
49 *
50 *
51 * Returns none
52 *
53 ******************************************************************************/
PAN_Register(tPAN_REGISTER * p_register)54 void PAN_Register(tPAN_REGISTER* p_register) {
55 BTM_SetDiscoverability(BTM_GENERAL_DISCOVERABLE, 0, 0);
56 BTM_SetConnectability(BTM_CONNECTABLE, 0, 0);
57
58 pan_register_with_bnep();
59
60 if (!p_register) return;
61
62 pan_cb.pan_conn_state_cb = p_register->pan_conn_state_cb;
63 pan_cb.pan_bridge_req_cb = p_register->pan_bridge_req_cb;
64 pan_cb.pan_data_buf_ind_cb = p_register->pan_data_buf_ind_cb;
65 pan_cb.pan_data_ind_cb = p_register->pan_data_ind_cb;
66 pan_cb.pan_pfilt_ind_cb = p_register->pan_pfilt_ind_cb;
67 pan_cb.pan_mfilt_ind_cb = p_register->pan_mfilt_ind_cb;
68 pan_cb.pan_tx_data_flow_cb = p_register->pan_tx_data_flow_cb;
69
70 return;
71 }
72
73 /*******************************************************************************
74 *
75 * Function PAN_Deregister
76 *
77 * Description This function is called by the application to de-register
78 * its callbacks with PAN profile. This will make the PAN to
79 * become inactive. This will deregister PAN services from SDP
80 * and close all active connections
81 *
82 * Parameters: none
83 *
84 *
85 * Returns none
86 *
87 ******************************************************************************/
PAN_Deregister(void)88 void PAN_Deregister(void) {
89 pan_cb.pan_bridge_req_cb = NULL;
90 pan_cb.pan_data_buf_ind_cb = NULL;
91 pan_cb.pan_data_ind_cb = NULL;
92 pan_cb.pan_conn_state_cb = NULL;
93 pan_cb.pan_pfilt_ind_cb = NULL;
94 pan_cb.pan_mfilt_ind_cb = NULL;
95
96 PAN_SetRole(PAN_ROLE_INACTIVE, NULL, NULL, NULL, NULL);
97 BNEP_Deregister();
98
99 return;
100 }
101
102 /*******************************************************************************
103 *
104 * Function PAN_SetRole
105 *
106 * Description This function is called by the application to set the PAN
107 * profile role. This should be called after PAN_Register.
108 * This can be called any time to change the PAN role
109 *
110 * Parameters: role - is bit map of roles to be active
111 * PAN_ROLE_CLIENT is for PANU role
112 * PAN_ROLE_GN_SERVER is for GN role
113 * PAN_ROLE_NAP_SERVER is for NAP role
114 * sec_mask - Security mask for different roles
115 * It is array of uint8_t. The bytes
116 * represent the security for roles PANU,
117 * GN and NAP in order
118 * p_user_name - Service name for PANU role
119 * p_gn_name - Service name for GN role
120 * p_nap_name - Service name for NAP role
121 * Can be NULL if user wants the default
122 *
123 * Returns PAN_SUCCESS - if the role is set successfully
124 * PAN_FAILURE - if the role is not valid
125 *
126 ******************************************************************************/
PAN_SetRole(uint8_t role,uint8_t * sec_mask,const char * p_user_name,const char * p_gn_name,const char * p_nap_name)127 tPAN_RESULT PAN_SetRole(uint8_t role, uint8_t* sec_mask,
128 const char* p_user_name, const char* p_gn_name,
129 const char* p_nap_name) {
130 const char* p_desc;
131 uint8_t security[3] = {PAN_PANU_SECURITY_LEVEL, PAN_GN_SECURITY_LEVEL,
132 PAN_NAP_SECURITY_LEVEL};
133 uint8_t* p_sec;
134
135 /* If the role is not a valid combination reject it */
136 if ((!(role &
137 (PAN_ROLE_CLIENT | PAN_ROLE_GN_SERVER | PAN_ROLE_NAP_SERVER))) &&
138 role != PAN_ROLE_INACTIVE) {
139 PAN_TRACE_ERROR("PAN role %d is invalid", role);
140 return PAN_FAILURE;
141 }
142
143 /* If the current active role is same as the role being set do nothing */
144 if (pan_cb.role == role) {
145 PAN_TRACE_EVENT("PAN role already was set to: %d", role);
146 return PAN_SUCCESS;
147 }
148
149 if (!sec_mask)
150 p_sec = security;
151 else
152 p_sec = sec_mask;
153
154 /* Register all the roles with SDP */
155 PAN_TRACE_API("PAN_SetRole() called with role 0x%x", role);
156 #if (PAN_SUPPORTS_ROLE_NAP == TRUE)
157 if (role & PAN_ROLE_NAP_SERVER) {
158 /* Check the service name */
159 if ((p_nap_name == NULL) || (*p_nap_name == 0))
160 p_nap_name = PAN_NAP_DEFAULT_SERVICE_NAME;
161
162 /* Registering for NAP service with SDP */
163 p_desc = PAN_NAP_DEFAULT_DESCRIPTION;
164
165 if (pan_cb.pan_nap_sdp_handle != 0)
166 SDP_DeleteRecord(pan_cb.pan_nap_sdp_handle);
167
168 pan_cb.pan_nap_sdp_handle =
169 pan_register_with_sdp(UUID_SERVCLASS_NAP, p_sec[2], p_nap_name, p_desc);
170 bta_sys_add_uuid(UUID_SERVCLASS_NAP);
171 }
172 /* If the NAP role is already active and now being cleared delete the record
173 */
174 else if (pan_cb.role & PAN_ROLE_NAP_SERVER) {
175 if (pan_cb.pan_nap_sdp_handle != 0) {
176 SDP_DeleteRecord(pan_cb.pan_nap_sdp_handle);
177 pan_cb.pan_nap_sdp_handle = 0;
178 bta_sys_remove_uuid(UUID_SERVCLASS_NAP);
179 }
180 }
181 #endif
182
183 #if (PAN_SUPPORTS_ROLE_GN == TRUE)
184 if (role & PAN_ROLE_GN_SERVER) {
185 /* Check the service name */
186 if ((p_gn_name == NULL) || (*p_gn_name == 0))
187 p_gn_name = PAN_GN_DEFAULT_SERVICE_NAME;
188
189 /* Registering for GN service with SDP */
190 p_desc = PAN_GN_DEFAULT_DESCRIPTION;
191
192 if (pan_cb.pan_gn_sdp_handle != 0)
193 SDP_DeleteRecord(pan_cb.pan_gn_sdp_handle);
194
195 pan_cb.pan_gn_sdp_handle =
196 pan_register_with_sdp(UUID_SERVCLASS_GN, p_sec[1], p_gn_name, p_desc);
197 bta_sys_add_uuid(UUID_SERVCLASS_GN);
198 }
199 /* If the GN role is already active and now being cleared delete the record */
200 else if (pan_cb.role & PAN_ROLE_GN_SERVER) {
201 if (pan_cb.pan_gn_sdp_handle != 0) {
202 SDP_DeleteRecord(pan_cb.pan_gn_sdp_handle);
203 pan_cb.pan_gn_sdp_handle = 0;
204 bta_sys_remove_uuid(UUID_SERVCLASS_GN);
205 }
206 }
207 #endif
208
209 #if (PAN_SUPPORTS_ROLE_PANU == TRUE)
210 if (role & PAN_ROLE_CLIENT) {
211 /* Check the service name */
212 if ((p_user_name == NULL) || (*p_user_name == 0))
213 p_user_name = PAN_PANU_DEFAULT_SERVICE_NAME;
214
215 /* Registering for PANU service with SDP */
216 p_desc = PAN_PANU_DEFAULT_DESCRIPTION;
217 if (pan_cb.pan_user_sdp_handle != 0)
218 SDP_DeleteRecord(pan_cb.pan_user_sdp_handle);
219
220 pan_cb.pan_user_sdp_handle = pan_register_with_sdp(
221 UUID_SERVCLASS_PANU, p_sec[0], p_user_name, p_desc);
222 bta_sys_add_uuid(UUID_SERVCLASS_PANU);
223 }
224 /* If the PANU role is already active and now being cleared delete the record
225 */
226 else if (pan_cb.role & PAN_ROLE_CLIENT) {
227 if (pan_cb.pan_user_sdp_handle != 0) {
228 SDP_DeleteRecord(pan_cb.pan_user_sdp_handle);
229 pan_cb.pan_user_sdp_handle = 0;
230 bta_sys_remove_uuid(UUID_SERVCLASS_PANU);
231 }
232 }
233 #endif
234
235 /* Check if it is a shutdown request */
236 if (role == PAN_ROLE_INACTIVE) pan_close_all_connections();
237
238 pan_cb.role = role;
239 PAN_TRACE_EVENT("PAN role set to: %d", role);
240 return PAN_SUCCESS;
241 }
242
243 /*******************************************************************************
244 *
245 * Function PAN_Connect
246 *
247 * Description This function is called by the application to initiate a
248 * connection to the remote device
249 *
250 * Parameters: rem_bda - BD Addr of the remote device
251 * src_role - Role of the local device for the connection
252 * dst_role - Role of the remote device for the connection
253 * PAN_ROLE_CLIENT is for PANU role
254 * PAN_ROLE_GN_SERVER is for GN role
255 * PAN_ROLE_NAP_SERVER is for NAP role
256 * *handle - Pointer for returning Handle to the connection
257 *
258 * Returns PAN_SUCCESS - if the connection is initiated
259 * successfully
260 * PAN_NO_RESOURCES - resources are not sufficent
261 * PAN_FAILURE - if the connection cannot be initiated
262 * this can be because of the combination of
263 * src and dst roles may not be valid or
264 * allowed at that point of time
265 *
266 ******************************************************************************/
PAN_Connect(const RawAddress & rem_bda,uint8_t src_role,uint8_t dst_role,uint16_t * handle)267 tPAN_RESULT PAN_Connect(const RawAddress& rem_bda, uint8_t src_role,
268 uint8_t dst_role, uint16_t* handle) {
269 tPAN_CONN* pcb;
270 tBNEP_RESULT result;
271 tBT_UUID src_uuid, dst_uuid;
272 uint32_t mx_chan_id;
273
274 /*
275 ** Initialize the handle so that in case of failure return values
276 ** the profile will not get confused
277 */
278 *handle = BNEP_INVALID_HANDLE;
279
280 /* Check if PAN is active or not */
281 if (!(pan_cb.role & src_role)) {
282 PAN_TRACE_ERROR("PAN is not active for the role %d", src_role);
283 return PAN_FAILURE;
284 }
285
286 /* Validate the parameters before proceeding */
287 if ((src_role != PAN_ROLE_CLIENT && src_role != PAN_ROLE_GN_SERVER &&
288 src_role != PAN_ROLE_NAP_SERVER) ||
289 (dst_role != PAN_ROLE_CLIENT && dst_role != PAN_ROLE_GN_SERVER &&
290 dst_role != PAN_ROLE_NAP_SERVER)) {
291 PAN_TRACE_ERROR("Either source %d or destination role %d is invalid",
292 src_role, dst_role);
293 return PAN_FAILURE;
294 }
295
296 /* Check if connection exists for this remote device */
297 pcb = pan_get_pcb_by_addr(rem_bda);
298
299 /* If we are PANU for this role validate destination role */
300 if (src_role == PAN_ROLE_CLIENT) {
301 if ((pan_cb.num_conns > 1) || (pan_cb.num_conns && (!pcb))) {
302 /*
303 ** If the request is not for existing connection reject it
304 ** because if there is already a connection we cannot accept
305 ** another connection in PANU role
306 */
307 PAN_TRACE_ERROR(
308 "Cannot make PANU connections when there are more than one "
309 "connection");
310 return PAN_INVALID_SRC_ROLE;
311 }
312
313 src_uuid.uu.uuid16 = UUID_SERVCLASS_PANU;
314 if (dst_role == PAN_ROLE_CLIENT) {
315 dst_uuid.uu.uuid16 = UUID_SERVCLASS_PANU;
316 } else if (dst_role == PAN_ROLE_GN_SERVER) {
317 dst_uuid.uu.uuid16 = UUID_SERVCLASS_GN;
318 } else {
319 dst_uuid.uu.uuid16 = UUID_SERVCLASS_NAP;
320 }
321 mx_chan_id = dst_uuid.uu.uuid16;
322 }
323 /* If destination is PANU role validate source role */
324 else if (dst_role == PAN_ROLE_CLIENT) {
325 if (pan_cb.num_conns && pan_cb.active_role == PAN_ROLE_CLIENT && !pcb) {
326 PAN_TRACE_ERROR("Device already have a connection in PANU role");
327 return PAN_INVALID_SRC_ROLE;
328 }
329
330 dst_uuid.uu.uuid16 = UUID_SERVCLASS_PANU;
331 if (src_role == PAN_ROLE_GN_SERVER) {
332 src_uuid.uu.uuid16 = UUID_SERVCLASS_GN;
333 } else {
334 src_uuid.uu.uuid16 = UUID_SERVCLASS_NAP;
335 }
336 mx_chan_id = src_uuid.uu.uuid16;
337 }
338 /* The role combination is not valid */
339 else {
340 PAN_TRACE_ERROR(
341 "Source %d and Destination roles %d are not valid combination",
342 src_role, dst_role);
343 return PAN_FAILURE;
344 }
345
346 /* Allocate control block and initiate connection */
347 if (!pcb) pcb = pan_allocate_pcb(rem_bda, BNEP_INVALID_HANDLE);
348 if (!pcb) {
349 PAN_TRACE_ERROR("PAN Connection failed because of no resources");
350 return PAN_NO_RESOURCES;
351 }
352 BTM_SetOutService(rem_bda, BTM_SEC_SERVICE_BNEP_PANU, mx_chan_id);
353
354 VLOG(0) << __func__ << " for BD Addr: " << rem_bda;
355 if (pcb->con_state == PAN_STATE_IDLE) {
356 pan_cb.num_conns++;
357 } else if (pcb->con_state == PAN_STATE_CONNECTED) {
358 pcb->con_flags |= PAN_FLAGS_CONN_COMPLETED;
359 } else
360 /* PAN connection is still in progress */
361 return PAN_WRONG_STATE;
362
363 pcb->con_state = PAN_STATE_CONN_START;
364 pcb->prv_src_uuid = pcb->src_uuid;
365 pcb->prv_dst_uuid = pcb->dst_uuid;
366
367 pcb->src_uuid = src_uuid.uu.uuid16;
368 pcb->dst_uuid = dst_uuid.uu.uuid16;
369
370 src_uuid.len = 2;
371 dst_uuid.len = 2;
372
373 result = BNEP_Connect(rem_bda, &src_uuid, &dst_uuid, &(pcb->handle));
374 if (result != BNEP_SUCCESS) {
375 pan_release_pcb(pcb);
376 return result;
377 }
378
379 PAN_TRACE_DEBUG("PAN_Connect() current active role set to %d", src_role);
380 pan_cb.prv_active_role = pan_cb.active_role;
381 pan_cb.active_role = src_role;
382 *handle = pcb->handle;
383 return PAN_SUCCESS;
384 }
385
386 /*******************************************************************************
387 *
388 * Function PAN_Disconnect
389 *
390 * Description This is used to disconnect the connection
391 *
392 * Parameters: handle - handle for the connection
393 *
394 * Returns PAN_SUCCESS - if the connection is closed successfully
395 * PAN_FAILURE - if the connection is not found or
396 * there is an error in disconnecting
397 *
398 ******************************************************************************/
PAN_Disconnect(uint16_t handle)399 tPAN_RESULT PAN_Disconnect(uint16_t handle) {
400 tPAN_CONN* pcb;
401 tBNEP_RESULT result;
402
403 /* Check if the connection exists */
404 pcb = pan_get_pcb_by_handle(handle);
405 if (!pcb) {
406 PAN_TRACE_ERROR("PAN connection not found for the handle %d", handle);
407 return PAN_FAILURE;
408 }
409
410 result = BNEP_Disconnect(pcb->handle);
411 if (pcb->con_state != PAN_STATE_IDLE) pan_cb.num_conns--;
412
413 if (pan_cb.pan_bridge_req_cb && pcb->src_uuid == UUID_SERVCLASS_NAP)
414 (*pan_cb.pan_bridge_req_cb)(pcb->rem_bda, false);
415
416 pan_release_pcb(pcb);
417
418 if (result != BNEP_SUCCESS) {
419 PAN_TRACE_EVENT("Error in closing PAN connection");
420 return PAN_FAILURE;
421 }
422
423 PAN_TRACE_EVENT("PAN connection closed");
424 return PAN_SUCCESS;
425 }
426
427 /*******************************************************************************
428 *
429 * Function PAN_Write
430 *
431 * Description This sends data over the PAN connections. If this is called
432 * on GN or NAP side and the packet is multicast or broadcast
433 * it will be sent on all the links. Otherwise the correct link
434 * is found based on the destination address and forwarded on
435 * it.
436 *
437 * Parameters: handle - handle for the connection
438 * dst - MAC or BD Addr of the destination device
439 * src - MAC or BD Addr of the source who sent this packet
440 * protocol - protocol of the ethernet packet like IP or ARP
441 * p_data - pointer to the data
442 * len - length of the data
443 * ext - to indicate that extension headers present
444 *
445 * Returns PAN_SUCCESS - if the data is sent successfully
446 * PAN_FAILURE - if the connection is not found or
447 * there is an error in sending data
448 *
449 ******************************************************************************/
PAN_Write(uint16_t handle,const RawAddress & dst,const RawAddress & src,uint16_t protocol,uint8_t * p_data,uint16_t len,bool ext)450 tPAN_RESULT PAN_Write(uint16_t handle, const RawAddress& dst,
451 const RawAddress& src, uint16_t protocol, uint8_t* p_data,
452 uint16_t len, bool ext) {
453 if (pan_cb.role == PAN_ROLE_INACTIVE || !pan_cb.num_conns) {
454 PAN_TRACE_ERROR("%s PAN is not active, data write failed.", __func__);
455 return PAN_FAILURE;
456 }
457
458 // If the packet is broadcast or multicast, we're going to have to create
459 // a copy of the packet for each connection. We can save one extra copy
460 // by fast-pathing here and calling BNEP_Write instead of placing the packet
461 // in a BT_HDR buffer, calling BNEP_Write, and then freeing the buffer.
462 if (dst.address[0] & 0x01) {
463 int i;
464 for (i = 0; i < MAX_PAN_CONNS; ++i) {
465 if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED)
466 BNEP_Write(pan_cb.pcb[i].handle, dst, p_data, len, protocol, &src, ext);
467 }
468 return PAN_SUCCESS;
469 }
470
471 BT_HDR* buffer = (BT_HDR*)osi_malloc(PAN_BUF_SIZE);
472 buffer->len = len;
473 buffer->offset = PAN_MINIMUM_OFFSET;
474 memcpy((uint8_t*)buffer + sizeof(BT_HDR) + buffer->offset, p_data,
475 buffer->len);
476
477 return PAN_WriteBuf(handle, dst, src, protocol, buffer, ext);
478 }
479
480 /*******************************************************************************
481 *
482 * Function PAN_WriteBuf
483 *
484 * Description This sends data over the PAN connections. If this is called
485 * on GN or NAP side and the packet is multicast or broadcast
486 * it will be sent on all the links. Otherwise the correct link
487 * is found based on the destination address and forwarded on
488 * it. If the return value is not PAN_SUCCESS, the application
489 * should take care of releasing the message buffer.
490 *
491 * Parameters: handle - handle for the connection
492 * dst - MAC or BD Addr of the destination device
493 * src - MAC or BD Addr of the source who sent this packet
494 * protocol - protocol of the ethernet packet like IP or ARP
495 * p_buf - pointer to the data buffer
496 * ext - to indicate that extension headers present
497 *
498 * Returns PAN_SUCCESS - if the data is sent successfully
499 * PAN_FAILURE - if the connection is not found or
500 * there is an error in sending data
501 *
502 ******************************************************************************/
PAN_WriteBuf(uint16_t handle,const RawAddress & dst,const RawAddress & src,uint16_t protocol,BT_HDR * p_buf,bool ext)503 tPAN_RESULT PAN_WriteBuf(uint16_t handle, const RawAddress& dst,
504 const RawAddress& src, uint16_t protocol,
505 BT_HDR* p_buf, bool ext) {
506 tPAN_CONN* pcb;
507 uint16_t i;
508 tBNEP_RESULT result;
509
510 if (pan_cb.role == PAN_ROLE_INACTIVE || (!(pan_cb.num_conns))) {
511 PAN_TRACE_ERROR("PAN is not active Data write failed");
512 osi_free(p_buf);
513 return PAN_FAILURE;
514 }
515
516 /* Check if it is broadcast or multicast packet */
517 if (dst.address[0] & 0x01) {
518 uint8_t* data = (uint8_t*)p_buf + sizeof(BT_HDR) + p_buf->offset;
519 for (i = 0; i < MAX_PAN_CONNS; ++i) {
520 if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED)
521 BNEP_Write(pan_cb.pcb[i].handle, dst, data, p_buf->len, protocol, &src,
522 ext);
523 }
524 osi_free(p_buf);
525 return PAN_SUCCESS;
526 }
527
528 /* Check if the data write is on PANU side */
529 if (pan_cb.active_role == PAN_ROLE_CLIENT) {
530 /* Data write is on PANU connection */
531 for (i = 0; i < MAX_PAN_CONNS; i++) {
532 if (pan_cb.pcb[i].con_state == PAN_STATE_CONNECTED &&
533 pan_cb.pcb[i].src_uuid == UUID_SERVCLASS_PANU)
534 break;
535 }
536
537 if (i == MAX_PAN_CONNS) {
538 PAN_TRACE_ERROR("PAN Don't have any user connections");
539 osi_free(p_buf);
540 return PAN_FAILURE;
541 }
542
543 result =
544 BNEP_WriteBuf(pan_cb.pcb[i].handle, dst, p_buf, protocol, &src, ext);
545 if (result == BNEP_IGNORE_CMD) {
546 PAN_TRACE_DEBUG("PAN ignored data write for PANU connection");
547 return result;
548 } else if (result != BNEP_SUCCESS) {
549 PAN_TRACE_ERROR("PAN failed to write data for the PANU connection");
550 return result;
551 }
552
553 PAN_TRACE_DEBUG("PAN successfully wrote data for the PANU connection");
554 return PAN_SUCCESS;
555 }
556
557 /* findout to which connection the data is meant for */
558 pcb = pan_get_pcb_by_handle(handle);
559 if (!pcb) {
560 PAN_TRACE_ERROR("PAN Buf write for wrong handle");
561 osi_free(p_buf);
562 return PAN_FAILURE;
563 }
564
565 if (pcb->con_state != PAN_STATE_CONNECTED) {
566 PAN_TRACE_ERROR("PAN Buf write when conn is not active");
567 osi_free(p_buf);
568 return PAN_FAILURE;
569 }
570
571 result = BNEP_WriteBuf(pcb->handle, dst, p_buf, protocol, &src, ext);
572 if (result == BNEP_IGNORE_CMD) {
573 PAN_TRACE_DEBUG("PAN ignored data buf write to PANU");
574 return result;
575 } else if (result != BNEP_SUCCESS) {
576 PAN_TRACE_ERROR("PAN failed to send data buf to the PANU");
577 return result;
578 }
579
580 PAN_TRACE_DEBUG("PAN successfully sent data buf to the PANU");
581 return PAN_SUCCESS;
582 }
583
584 /*******************************************************************************
585 *
586 * Function PAN_SetProtocolFilters
587 *
588 * Description This function is used to set protocol filters on the peer
589 *
590 * Parameters: handle - handle for the connection
591 * num_filters - number of protocol filter ranges
592 * start - array of starting protocol numbers
593 * end - array of ending protocol numbers
594 *
595 *
596 * Returns PAN_SUCCESS if protocol filters are set successfully
597 * PAN_FAILURE if connection not found or error in setting
598 *
599 ******************************************************************************/
PAN_SetProtocolFilters(uint16_t handle,uint16_t num_filters,uint16_t * p_start_array,uint16_t * p_end_array)600 tPAN_RESULT PAN_SetProtocolFilters(uint16_t handle, uint16_t num_filters,
601 uint16_t* p_start_array,
602 uint16_t* p_end_array) {
603 tPAN_CONN* pcb;
604 tPAN_RESULT result;
605
606 /* Check if the connection exists */
607 pcb = pan_get_pcb_by_handle(handle);
608 if (!pcb) {
609 PAN_TRACE_ERROR("PAN connection not found for the handle %d", handle);
610 return PAN_FAILURE;
611 }
612
613 result = BNEP_SetProtocolFilters(pcb->handle, num_filters, p_start_array,
614 p_end_array);
615 if (result != BNEP_SUCCESS) {
616 PAN_TRACE_ERROR("PAN failed to set protocol filters for handle %d", handle);
617 return result;
618 }
619
620 PAN_TRACE_API("PAN successfully sent protocol filters for handle %d", handle);
621 return PAN_SUCCESS;
622 }
623
624 /*******************************************************************************
625 *
626 * Function PAN_SetMulticastFilters
627 *
628 * Description This function is used to set multicast filters on the peer
629 *
630 * Parameters: handle - handle for the connection
631 * num_filters - number of multicast filter ranges
632 * start - array of starting multicast filter addresses
633 * end - array of ending multicast filter addresses
634 *
635 *
636 * Returns PAN_SUCCESS if multicast filters are set successfully
637 * PAN_FAILURE if connection not found or error in setting
638 *
639 ******************************************************************************/
PAN_SetMulticastFilters(uint16_t handle,uint16_t num_mcast_filters,uint8_t * p_start_array,uint8_t * p_end_array)640 tBNEP_RESULT PAN_SetMulticastFilters(uint16_t handle,
641 uint16_t num_mcast_filters,
642 uint8_t* p_start_array,
643 uint8_t* p_end_array) {
644 tPAN_CONN* pcb;
645 tPAN_RESULT result;
646
647 /* Check if the connection exists */
648 pcb = pan_get_pcb_by_handle(handle);
649 if (!pcb) {
650 PAN_TRACE_ERROR("PAN connection not found for the handle %d", handle);
651 return PAN_FAILURE;
652 }
653
654 result = BNEP_SetMulticastFilters(pcb->handle, num_mcast_filters,
655 p_start_array, p_end_array);
656 if (result != BNEP_SUCCESS) {
657 PAN_TRACE_ERROR("PAN failed to set multicast filters for handle %d",
658 handle);
659 return result;
660 }
661
662 PAN_TRACE_API("PAN successfully sent multicast filters for handle %d",
663 handle);
664 return PAN_SUCCESS;
665 }
666
667 /*******************************************************************************
668 *
669 * Function PAN_SetTraceLevel
670 *
671 * Description This function sets the trace level for PAN. If called with
672 * a value of 0xFF, it simply reads the current trace level.
673 *
674 * Returns the new (current) trace level
675 *
676 ******************************************************************************/
PAN_SetTraceLevel(uint8_t new_level)677 uint8_t PAN_SetTraceLevel(uint8_t new_level) {
678 if (new_level != 0xFF)
679 pan_cb.trace_level = new_level;
680 else
681 pan_dump_status();
682
683 return (pan_cb.trace_level);
684 }
685
686 /*******************************************************************************
687 *
688 * Function PAN_Init
689 *
690 * Description This function initializes the PAN module variables
691 *
692 * Parameters: none
693 *
694 * Returns none
695 *
696 ******************************************************************************/
PAN_Init(void)697 void PAN_Init(void) {
698 memset(&pan_cb, 0, sizeof(tPAN_CB));
699
700 #if defined(PAN_INITIAL_TRACE_LEVEL)
701 pan_cb.trace_level = PAN_INITIAL_TRACE_LEVEL;
702 #else
703 pan_cb.trace_level = BT_TRACE_LEVEL_NONE; /* No traces */
704 #endif
705 }
706