Outline ![]()
Files ![]()
loading (2/5)...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include "osi/osi.h"
#include "osi/allocator.h"
#include "common/bt_target.h"
#include "stack/obex_api.h"
#include "obex_int.h"
#include "obex_tl.h"
#include "obex_tl_l2cap.h"
#if (OBEX_INCLUDED == TRUE)
static inline void obex_server_to_tl_server(tOBEX_SVR_INFO *server, tOBEX_TL_SVR_INFO *tl_server)
{
if (server->tl == OBEX_OVER_L2CAP) {
tl_server->l2cap.psm = server->l2cap.psm;
tl_server->l2cap.sec_mask = server->l2cap.sec_mask;
tl_server->l2cap.pref_mtu = server->l2cap.pref_mtu;
bdcpy(tl_server->l2cap.addr, server->l2cap.addr);
}
else {
OBEX_TRACE_ERROR("Unsupported OBEX transport type\n");
assert(0);
}
}
static inline void obex_updata_packet_length(BT_HDR *p_buf, UINT16 len)
{
UINT8 *p_pkt_len = (UINT8 *)(p_buf + 1) + p_buf->offset + 1;
UINT16_TO_BE_FIELD(p_pkt_len, len);
}
/*******************************************************************************
**
** Function OBEX_Init
**
** Description Initialize OBEX Profile, must call before using any other
** OBEX APIs
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_Init(void)
{
#if (OBEX_DYNAMIC_MEMORY)
if (!obex_cb_ptr) {
obex_cb_ptr = (tOBEX_CB *)osi_malloc(sizeof(tOBEX_CB));
if (!obex_cb_ptr) {
return OBEX_NO_RESOURCES;
}
}
#endif /* #if (OBEX_DYNAMIC_MEMORY) */
memset(&obex_cb, 0, sizeof(tOBEX_CB));
obex_cb.tl_ops[OBEX_OVER_L2CAP] = obex_tl_l2cap_ops_get();
if (obex_cb.tl_ops[OBEX_OVER_L2CAP]->init != NULL) {
obex_cb.tl_ops[OBEX_OVER_L2CAP]->init(obex_tl_l2cap_callback);
}
/* Not implement yet */
/*
obex_cb.tl_ops[OBEX_OVER_RFCOMM] = obex_tl_rfcomm_ops_get();
if (obex_cb.tl_ops[OBEX_OVER_RFCOMM]->init != NULL) {
obex_cb.tl_ops[OBEX_OVER_RFCOMM]->init(obex_tl_rfcomm_callback);
}
*/
obex_cb.trace_level = BT_TRACE_LEVEL_ERROR;
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_Deinit
**
** Description Deinit OBEX profile, once deinit, can not use any other
** APIs until call OBEX_Init again
**
*******************************************************************************/
void OBEX_Deinit(void)
{
if (obex_cb.tl_ops[OBEX_OVER_L2CAP]->deinit != NULL) {
obex_cb.tl_ops[OBEX_OVER_L2CAP]->deinit();
}
/*
if (obex_cb.tl_ops[OBEX_OVER_RFCOMM]->deinit != NULL) {
obex_cb.tl_ops[OBEX_OVER_RFCOMM]->deinit();
}
*/
#if (OBEX_DYNAMIC_MEMORY)
if (obex_cb_ptr) {
osi_free(obex_cb_ptr);
obex_cb_ptr = NULL;
}
#endif /* #if (OBEX_DYNAMIC_MEMORY) */
}
/*******************************************************************************
**
** Function OBEX_CreateConn
**
** Description Start the progress of creating an OBEX connection
**
** Returns OBEX_SUCCESS if successful, otherwise failed, when the
** connection is opened, an OBEX_CONNECT_EVT will come
**
*******************************************************************************/
UINT16 OBEX_CreateConn(tOBEX_SVR_INFO *server, tOBEX_MSG_CBACK callback, UINT16 *out_handle)
{
UINT16 ret = OBEX_SUCCESS;
tOBEX_CCB *p_ccb = NULL;
do {
if (server->tl >= OBEX_NUM_TL) {
ret = OBEX_INVALID_PARAM;
break;
}
p_ccb = obex_allocate_ccb();
if (p_ccb == NULL) {
ret = OBEX_NO_RESOURCES;
break;
}
tOBEX_TL_SVR_INFO tl_server = {0};
obex_server_to_tl_server(server, &tl_server);
p_ccb->tl = server->tl;
p_ccb->tl_hdl = obex_cb.tl_ops[p_ccb->tl]->connect(&tl_server);
if (p_ccb->tl_hdl == 0) {
ret = OBEX_ERROR_TL;
break;
}
p_ccb->callback = callback;
p_ccb->role = OBEX_ROLE_CLIENT;
p_ccb->state = OBEX_STATE_OPENING;
*out_handle = p_ccb->allocated;
} while (0);
if (ret != OBEX_SUCCESS && p_ccb != NULL) {
obex_free_ccb(p_ccb);
}
return ret;
}
/*******************************************************************************
**
** Function OBEX_RemoveConn
**
** Description Remove an OBEX connection
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_RemoveConn(UINT16 handle)
{
tOBEX_CCB *p_ccb = NULL;
UINT16 ccb_idx = handle - 1;
if (ccb_idx >= OBEX_MAX_CONNECTION || !obex_cb.ccb[ccb_idx].allocated) {
return OBEX_BAD_HANDLE;
}
p_ccb = &obex_cb.ccb[ccb_idx];
obex_cb.tl_ops[p_ccb->tl]->disconnect(p_ccb->tl_hdl);
obex_free_ccb(p_ccb);
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_RegisterServer
**
** Description Register an OBEX server and listen the incoming connection
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_RegisterServer(tOBEX_SVR_INFO *server, tOBEX_MSG_CBACK callback, UINT16 *out_svr_handle)
{
UINT8 ret = OBEX_SUCCESS;
tOBEX_SCB *p_scb = NULL;
do {
if (server->tl >= OBEX_NUM_TL) {
ret = OBEX_INVALID_PARAM;
break;
}
p_scb = obex_allocate_scb();
if (p_scb == NULL) {
ret = OBEX_NO_RESOURCES;
break;
}
tOBEX_TL_SVR_INFO tl_server = {0};
obex_server_to_tl_server(server, &tl_server);
p_scb->tl = server->tl;
p_scb->tl_hdl = obex_cb.tl_ops[p_scb->tl]->bind(&tl_server);
if (p_scb->tl_hdl == 0) {
ret = OBEX_ERROR_TL;
break;
}
p_scb->callback = callback;
if (out_svr_handle) {
/* To avoid confuse with connection handle, left shift 8 bit */
*out_svr_handle = p_scb->allocated << 8;
}
} while (0);
if (ret != OBEX_SUCCESS && p_scb != NULL) {
obex_free_scb(p_scb);
}
return ret;
}
/*******************************************************************************
**
** Function OBEX_DeregisterServer
**
** Description Deregister an OBEX server, if there are still a connection
** alive, the behavior depend on the implementation of transport
** layer
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_DeregisterServer(UINT16 svr_handle)
{
tOBEX_SCB *p_scb = NULL;
UINT16 scb_idx = (svr_handle >> 8) - 1;
if (scb_idx >= OBEX_MAX_SERVER || !obex_cb.scb[scb_idx].allocated) {
return OBEX_BAD_HANDLE;
}
p_scb = &obex_cb.scb[scb_idx];
obex_cb.tl_ops[p_scb->tl]->unbind(p_scb->tl_hdl);
obex_free_scb(p_scb);
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_SendPacket
**
** Description Send a packet to peer OBEX server or client, once call
** this function, the ownership of pkt is lost, do not free
** or modify the pkt any more
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_SendPacket(UINT16 handle, BT_HDR *pkt)
{
UINT16 ret = OBEX_SUCCESS;
BOOLEAN free_pkt = true;
tOBEX_CCB *p_ccb = NULL;
do {
if (pkt == NULL) {
ret = OBEX_INVALID_PARAM;
break;
}
UINT16 ccb_idx = handle - 1;
if (ccb_idx >= OBEX_MAX_CONNECTION || !obex_cb.ccb[ccb_idx].allocated) {
ret = OBEX_BAD_HANDLE;
break;
}
p_ccb = &obex_cb.ccb[ccb_idx];
if (p_ccb->state != OBEX_STATE_OPENED) {
ret = OBEX_NOT_OPEN;
break;
}
if (pkt->len > p_ccb->tl_peer_mtu) {
ret = OBEX_PACKET_TOO_LARGE;
break;
}
ret = obex_cb.tl_ops[p_ccb->tl]->send(p_ccb->tl_hdl, pkt);
/* packet has pass to lower layer, do not free it */
free_pkt = false;
if (ret == OBEX_TL_SUCCESS || ret == OBEX_TL_CONGESTED) {
ret = OBEX_SUCCESS;
}
else {
ret = OBEX_ERROR_TL;
}
} while (0);
if (free_pkt) {
osi_free(pkt);
}
return ret;
}
/*******************************************************************************
**
** Function OBEX_BuildRequest
**
** Description Build a request packet with opcode and additional info,
** packet can free by osi_free
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_BuildRequest(tOBEX_PARSE_INFO *info, UINT16 buff_size, BT_HDR **out_pkt)
{
if (buff_size < OBEX_MIN_PACKET_SIZE || info == NULL || out_pkt == NULL) {
return OBEX_INVALID_PARAM;
}
buff_size += sizeof(BT_HDR) + OBEX_BT_HDR_MIN_OFFSET;
BT_HDR *p_buf= (BT_HDR *)osi_malloc(buff_size);
if (p_buf == NULL) {
return OBEX_NO_RESOURCES;
}
UINT16 pkt_len = OBEX_MIN_PACKET_SIZE;
p_buf->offset = OBEX_BT_HDR_MIN_OFFSET;
/* use layer_specific to store the max data length allowed */
p_buf->layer_specific = buff_size - sizeof(BT_HDR) - OBEX_BT_HDR_MIN_OFFSET;
UINT8 *p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
/* byte 0: opcode */
*p_data++ = info->opcode;
/* byte 1, 2: packet length, skip, we will update at last */
UINT8 *p_pkt_len = p_data;
p_data += 2;
switch (info->opcode)
{
case OBEX_OPCODE_CONNECT:
/* byte 3: OBEX version number */
*p_data++ = info->obex_version_number;
/* byte 4: flags */
*p_data++ = info->flags;
/* byte 5, 6: maximum OBEX packet length, recommend to set as our mtu*/
UINT16_TO_BE_FIELD(p_data, info->max_packet_length);
pkt_len += 4;
break;
case OBEX_OPCODE_SETPATH:
/* byte 3: flags */
*p_data++ = info->flags;
/* byte 4: constants, reserved, must be zero */
*p_data++ = 0;
pkt_len += 2;
break;
default:
break;
}
UINT16_TO_BE_FIELD(p_pkt_len, pkt_len);
p_buf->len = pkt_len;
*out_pkt = p_buf;
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_BuildResponse
**
** Description Build a response packet with opcode and response and additional
** info, packet can by free by osi_free
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_BuildResponse(tOBEX_PARSE_INFO *info, UINT16 buff_size, BT_HDR **out_pkt)
{
if (buff_size < OBEX_MIN_PACKET_SIZE || info == NULL || out_pkt == NULL) {
return OBEX_INVALID_PARAM;
}
buff_size += sizeof(BT_HDR) + OBEX_BT_HDR_MIN_OFFSET;
BT_HDR *p_buf= (BT_HDR *)osi_malloc(buff_size);
if (p_buf == NULL) {
return OBEX_NO_RESOURCES;
}
UINT16 pkt_len = OBEX_MIN_PACKET_SIZE;
p_buf->offset = OBEX_BT_HDR_MIN_OFFSET;
/* use layer_specific to store the max data length allowed */
p_buf->layer_specific = buff_size - sizeof(BT_HDR) - OBEX_BT_HDR_MIN_OFFSET;
UINT8 *p_data = (UINT8 *)(p_buf + 1) + p_buf->offset;
/* byte 0: response code */
*p_data++ = info->response_code;
/* byte 1, 2: packet length, skip, we will update at last */
UINT8 *p_pkt_len = p_data;
p_data += 2;
/* we need to use opcode to decide the response format */
switch (info->opcode)
{
case OBEX_OPCODE_CONNECT:
/* byte 3: OBEX version number */
*p_data++ = info->obex_version_number;
/* byte 4: flags */
*p_data++ = info->flags;
/* byte 5, 6: maximum OBEX packet length, recommend to set as our mtu */
UINT16_TO_BE_FIELD(p_data, info->max_packet_length);
pkt_len += 4;
break;
default:
break;
}
UINT16_TO_BE_FIELD(p_pkt_len, pkt_len);
p_buf->len = pkt_len;
*out_pkt = p_buf;
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_AppendHeader
**
** Description Append a header to specific packet, packet can be request
** or response, the format of header must be valid
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_AppendHeader(BT_HDR *pkt, const UINT8 *header)
{
if (pkt == NULL || header == NULL) {
return OBEX_INVALID_PARAM;
}
UINT16 header_len = 0;
UINT8 header_id = *header;
switch (header_id & OBEX_HEADER_ID_U2B_MASK)
{
case OBEX_HEADER_ID_U2B_TYPE1:
case OBEX_HEADER_ID_U2B_TYPE2:
header_len = (header[1] << 8) + header[2];
break;
case OBEX_HEADER_ID_U2B_TYPE3:
header_len = 2;
break;
case OBEX_HEADER_ID_U2B_TYPE4:
header_len = 5;
break;
default:
break;
}
if (header_len == 0) {
return OBEX_INVALID_PARAM;
}
if (pkt->layer_specific - pkt->len < header_len) {
/* the packet can not hold this header */
return OBEX_NO_RESOURCES;
}
UINT8 *p_data = (UINT8 *)(pkt + 1) + pkt->offset;
UINT8 *p_start = p_data + pkt->len;
memcpy(p_start, header, header_len);
pkt->len += header_len;
/* point to packet len */
p_data++;
UINT16_TO_BE_FIELD(p_data, pkt->len);
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_AppendHeaderRaw
**
** Description Append a header to specific packet, packet can be request
** or response, data not include 2 byte length prefixed
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_AppendHeaderRaw(BT_HDR *pkt, UINT8 header_id, const UINT8 *data, UINT16 data_len)
{
if (pkt == NULL) {
return OBEX_INVALID_PARAM;
}
if ((data == NULL && data_len != 0) || (data != NULL && data_len == 0)) {
return OBEX_INVALID_PARAM;
}
UINT16 header_len = 0;
BOOLEAN store_header_len = FALSE;
switch (header_id & OBEX_HEADER_ID_U2B_MASK)
{
case OBEX_HEADER_ID_U2B_TYPE1:
case OBEX_HEADER_ID_U2B_TYPE2:
/* header id + 2 byte length prefixed + data */
header_len = data_len + 3;
store_header_len = TRUE;
break;
case OBEX_HEADER_ID_U2B_TYPE3:
header_len = 2;
if (data_len != 1) {
return OBEX_INVALID_PARAM;
}
break;
case OBEX_HEADER_ID_U2B_TYPE4:
header_len = 5;
if (data_len != 4) {
return OBEX_INVALID_PARAM;
}
break;
default:
break;
}
if (header_len == 0) {
return OBEX_INVALID_PARAM;
}
if (pkt->layer_specific - pkt->len < header_len) {
/* the packet can not hold this header */
return OBEX_NO_RESOURCES;
}
UINT8 *p_data = (UINT8 *)(pkt + 1) + pkt->offset;
UINT8 *p_start = p_data + pkt->len;
/* store header id */
*p_start++ = header_id;
if (store_header_len) {
/* store header length */
UINT16_TO_BE_FIELD(p_start, header_len);
p_start+= 2;
}
if (data != NULL) {
/* store data */
memcpy(p_start, data, data_len);
}
pkt->len += header_len;
/* point to packet len */
p_data++;
UINT16_TO_BE_FIELD(p_data, pkt->len);
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_AppendHeaderSRM
**
** Description Append a Single Response Mode header
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_AppendHeaderSRM(BT_HDR *pkt, UINT8 value)
{
return OBEX_AppendHeaderRaw(pkt, OBEX_HEADER_ID_SRM, &value, 1);
}
/*******************************************************************************
**
** Function OBEX_AppendHeaderSRMP
**
** Description Append a Single Response Mode Parameters header
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_AppendHeaderSRMP(BT_HDR *pkt, UINT8 value)
{
return OBEX_AppendHeaderRaw(pkt, OBEX_HEADER_ID_SRM_PARAM, &value, 1);
}
/*******************************************************************************
**
** Function OBEX_GetPacketFreeSpace
**
** Description Get the current free space of a packet, use this to check
** if a packet can hold a header
**
** Returns Current free space of a packet, in bytes
**
*******************************************************************************/
UINT16 OBEX_GetPacketFreeSpace(BT_HDR *pkt)
{
if (pkt == NULL) {
return 0;
}
return pkt->layer_specific - pkt->len;
}
/*******************************************************************************
**
** Function OBEX_GetPacketLength
**
** Description Get the current packet length
**
** Returns Current packet length, in bytes
**
*******************************************************************************/
UINT16 OBEX_GetPacketLength(BT_HDR *pkt)
{
if (pkt == NULL) {
return 0;
}
return pkt->len;
}
/*******************************************************************************
**
** Function OBEX_ParseRequest
**
** Description Parse a request packet
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_ParseRequest(BT_HDR *pkt, tOBEX_PARSE_INFO *info)
{
if (pkt == NULL || info == NULL) {
return OBEX_INVALID_PARAM;
}
UINT8 *p_data = (UINT8 *)(pkt + 1) + pkt->offset;
info->opcode = *p_data;
switch (info->opcode)
{
case OBEX_OPCODE_CONNECT:
info->obex_version_number = p_data[3];
info->flags = p_data[4];
info->max_packet_length = (p_data[5] << 8) + p_data[6];
info->next_header_pos = 7;
break;
case OBEX_OPCODE_SETPATH:
info->flags = p_data[3];
info->next_header_pos = 5;
break;
default:
info->next_header_pos = 3;
break;
}
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_ParseResponse
**
** Description Parse a request response packet
**
** Returns OBEX_SUCCESS if successful, otherwise failed
**
*******************************************************************************/
UINT16 OBEX_ParseResponse(BT_HDR *pkt, UINT8 opcode, tOBEX_PARSE_INFO *info)
{
if (pkt == NULL || info == NULL) {
return OBEX_INVALID_PARAM;
}
UINT8 *p_data = (UINT8 *)(pkt + 1) + pkt->offset;
info->opcode = opcode;
info->response_code = *p_data;
switch (opcode)
{
case OBEX_OPCODE_CONNECT:
info->obex_version_number = p_data[3];
info->flags = p_data[4];
info->max_packet_length = (p_data[5] << 8) + p_data[6];
info->next_header_pos = 7;
break;
default:
info->next_header_pos = 3;
break;
}
return OBEX_SUCCESS;
}
/*******************************************************************************
**
** Function OBEX_CheckFinalBit
**
** Description Check whether a packet had set the final bit
**
** Returns TRUE if final bit set, otherwise, false
**
*******************************************************************************/
BOOLEAN OBEX_CheckFinalBit(BT_HDR *pkt)
{
if (pkt == NULL) {
return FALSE;
}
UINT8 *p_data = (UINT8 *)(pkt + 1) + pkt->offset;
return (*p_data) & OBEX_FINAL_BIT_MASK;
}
/*******************************************************************************
**
** Function OBEX_CheckContinueResponse
**
** Description Check whether a packet is continue response
**
** Returns TRUE if continue response, otherwise, false
**
*******************************************************************************/
BOOLEAN OBEX_CheckContinueResponse(BT_HDR *pkt)
{
if (pkt == NULL) {
return FALSE;
}
UINT8 *p_data = (UINT8 *)(pkt + 1) + pkt->offset;
return (*p_data == 0x90) || (*p_data == 0x10);
}
/*******************************************************************************
**
** Function OBEX_GetHeaderLength
**
** Description Get header length
**
** Returns header length
**
*******************************************************************************/
UINT16 OBEX_GetHeaderLength(UINT8 *header)
{
UINT16 header_len = 0;
UINT8 header_id = *header;
switch (header_id & OBEX_HEADER_ID_U2B_MASK)
{
case OBEX_HEADER_ID_U2B_TYPE1:
case OBEX_HEADER_ID_U2B_TYPE2:
header_len = (header[1] << 8) + header[2];
break;
case OBEX_HEADER_ID_U2B_TYPE3:
header_len = 2;
break;
case OBEX_HEADER_ID_U2B_TYPE4:
header_len = 5;
break;
default:
/* unreachable */
break;
}
return header_len;
}
/*******************************************************************************
**
** Function OBEX_GetNextHeader
**
** Description Get next header pointer from a packet
**
** Returns Pointer to start address of a header, NULL if no more header
** or failed
**
*******************************************************************************/
UINT8 *OBEX_GetNextHeader(BT_HDR *pkt, tOBEX_PARSE_INFO *info)
{
if (pkt == NULL || info == NULL) {
return NULL;
}
UINT8 *p_data = (UINT8 *)(pkt + 1) + pkt->offset;
if (info->next_header_pos == 0 || info->next_header_pos >= pkt->len) {
return NULL;
}
UINT8 *header = p_data + info->next_header_pos;
UINT16 header_len = OBEX_GetHeaderLength(header);
info->next_header_pos += header_len;
return header;
}
#endif /* #if (OBEX_INCLUDED == TRUE) */
Details ![]()
Show: from Types: Columns: ![]( "Show Project Names")
![]( "Show Locations")
![]( "Show Referring Symbols")
![]( "Show Scope")
This file uses the notable symbols shown below. Click anywhere in the file to view more details.