1 /******************************************************************************
2 *
3 * Copyright (C) 2008-2012 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 the GATT server functions
22 *
23 ******************************************************************************/
24
25 #include "bt_target.h"
26 #include "bt_utils.h"
27
28 #if BLE_INCLUDED == TRUE
29 #include <string.h>
30 #include "gatt_int.h"
31 #include "l2c_api.h"
32 #include "l2c_int.h"
33 #define GATT_MTU_REQ_MIN_LEN 2
34
35
36 /*******************************************************************************
37 **
38 ** Function gatt_sr_enqueue_cmd
39 **
40 ** Description This function enqueue the request from client which needs a
41 ** application response, and update the transaction ID.
42 **
43 ** Returns void
44 **
45 *******************************************************************************/
gatt_sr_enqueue_cmd(tGATT_TCB * p_tcb,UINT8 op_code,UINT16 handle)46 UINT32 gatt_sr_enqueue_cmd (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 handle)
47 {
48 tGATT_SR_CMD *p_cmd = &p_tcb->sr_cmd;
49 UINT32 trans_id = 0;
50
51 if ( (p_cmd->op_code == 0) ||
52 (op_code == GATT_HANDLE_VALUE_CONF)) /* no pending request */
53 {
54 if (op_code == GATT_CMD_WRITE ||
55 op_code == GATT_SIGN_CMD_WRITE ||
56 op_code == GATT_REQ_MTU ||
57 op_code == GATT_HANDLE_VALUE_CONF)
58 {
59 trans_id = ++p_tcb->trans_id;
60 }
61 else
62 {
63 p_cmd->trans_id = ++p_tcb->trans_id;
64 p_cmd->op_code = op_code;
65 p_cmd->handle = handle;
66 p_cmd->status = GATT_NOT_FOUND;
67 p_tcb->trans_id %= GATT_TRANS_ID_MAX;
68 trans_id = p_cmd->trans_id;
69 }
70 }
71
72 return trans_id;
73 }
74
75 /*******************************************************************************
76 **
77 ** Function gatt_sr_cmd_empty
78 **
79 ** Description This function check the server command queue is empty or not.
80 **
81 ** Returns TRUE if empty, FALSE if there is pending command.
82 **
83 *******************************************************************************/
gatt_sr_cmd_empty(tGATT_TCB * p_tcb)84 BOOLEAN gatt_sr_cmd_empty (tGATT_TCB *p_tcb)
85 {
86 return(p_tcb->sr_cmd.op_code == 0);
87 }
88
89 /*******************************************************************************
90 **
91 ** Function gatt_dequeue_sr_cmd
92 **
93 ** Description This function dequeue the request from command queue.
94 **
95 ** Returns void
96 **
97 *******************************************************************************/
gatt_dequeue_sr_cmd(tGATT_TCB * p_tcb)98 void gatt_dequeue_sr_cmd (tGATT_TCB *p_tcb)
99 {
100 /* Double check in case any buffers are queued */
101 GATT_TRACE_DEBUG("gatt_dequeue_sr_cmd" );
102 if (p_tcb->sr_cmd.p_rsp_msg)
103 GATT_TRACE_ERROR("free p_tcb->sr_cmd.p_rsp_msg = %d", p_tcb->sr_cmd.p_rsp_msg);
104 osi_free_and_reset((void **)&p_tcb->sr_cmd.p_rsp_msg);
105
106 while (!fixed_queue_is_empty(p_tcb->sr_cmd.multi_rsp_q))
107 osi_free(fixed_queue_try_dequeue(p_tcb->sr_cmd.multi_rsp_q));
108 fixed_queue_free(p_tcb->sr_cmd.multi_rsp_q, NULL);
109 memset( &p_tcb->sr_cmd, 0, sizeof(tGATT_SR_CMD));
110 }
111
112 /*******************************************************************************
113 **
114 ** Function process_read_multi_rsp
115 **
116 ** Description This function check the read multiple response.
117 **
118 ** Returns BOOLEAN if all replies have been received
119 **
120 *******************************************************************************/
process_read_multi_rsp(tGATT_SR_CMD * p_cmd,tGATT_STATUS status,tGATTS_RSP * p_msg,UINT16 mtu)121 static BOOLEAN process_read_multi_rsp (tGATT_SR_CMD *p_cmd, tGATT_STATUS status,
122 tGATTS_RSP *p_msg, UINT16 mtu)
123 {
124 UINT16 ii, total_len, len;
125 BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(tGATTS_RSP));
126 UINT8 *p;
127 BOOLEAN is_overflow = FALSE;
128
129 GATT_TRACE_DEBUG ("process_read_multi_rsp status=%d mtu=%d", status, mtu);
130
131 /* Enqueue the response */
132 memcpy((void *)p_buf, (const void *)p_msg, sizeof(tGATTS_RSP));
133 fixed_queue_enqueue(p_cmd->multi_rsp_q, p_buf);
134
135 p_cmd->status = status;
136 if (status == GATT_SUCCESS)
137 {
138 GATT_TRACE_DEBUG("Multi read count=%d num_hdls=%d",
139 fixed_queue_length(p_cmd->multi_rsp_q),
140 p_cmd->multi_req.num_handles);
141 /* Wait till we get all the responses */
142 if (fixed_queue_length(p_cmd->multi_rsp_q) == p_cmd->multi_req.num_handles)
143 {
144 len = sizeof(BT_HDR) + L2CAP_MIN_OFFSET + mtu;
145 p_buf = (BT_HDR *)osi_calloc(len);
146 p_buf->offset = L2CAP_MIN_OFFSET;
147 p = (UINT8 *)(p_buf + 1) + p_buf->offset;
148
149 /* First byte in the response is the opcode */
150 *p++ = GATT_RSP_READ_MULTI;
151 p_buf->len = 1;
152
153 /* Now walk through the buffers puting the data into the response in order */
154 list_t *list = NULL;
155 const list_node_t *node = NULL;
156 if (! fixed_queue_is_empty(p_cmd->multi_rsp_q))
157 list = fixed_queue_get_list(p_cmd->multi_rsp_q);
158 for (ii = 0; ii < p_cmd->multi_req.num_handles; ii++)
159 {
160 tGATTS_RSP *p_rsp = NULL;
161
162 if (list != NULL) {
163 if (ii == 0)
164 node = list_begin(list);
165 else
166 node = list_next(node);
167 if (node != list_end(list))
168 p_rsp = (tGATTS_RSP *)list_node(node);
169 }
170
171 if (p_rsp != NULL)
172 {
173
174 total_len = (p_buf->len + p_rsp->attr_value.len);
175
176 if (total_len > mtu)
177 {
178 /* just send the partial response for the overflow case */
179 len = p_rsp->attr_value.len - (total_len - mtu);
180 is_overflow = TRUE;
181 GATT_TRACE_DEBUG ("multi read overflow available len=%d val_len=%d", len, p_rsp->attr_value.len );
182 }
183 else
184 {
185 len = p_rsp->attr_value.len;
186 }
187
188 if (p_rsp->attr_value.handle == p_cmd->multi_req.handles[ii])
189 {
190 memcpy (p, p_rsp->attr_value.value, len);
191 if (!is_overflow)
192 p += len;
193 p_buf->len += len;
194 }
195 else
196 {
197 p_cmd->status = GATT_NOT_FOUND;
198 break;
199 }
200
201 if (is_overflow)
202 break;
203
204 }
205 else
206 {
207 p_cmd->status = GATT_NOT_FOUND;
208 break;
209 }
210
211 } /* loop through all handles*/
212
213
214 /* Sanity check on the buffer length */
215 if (p_buf->len == 0)
216 {
217 GATT_TRACE_ERROR("process_read_multi_rsp - nothing found!!");
218 p_cmd->status = GATT_NOT_FOUND;
219 osi_free(p_buf);
220 GATT_TRACE_DEBUG("osi_free(p_buf)");
221 }
222 else if (p_cmd->p_rsp_msg != NULL)
223 {
224 osi_free(p_buf);
225 }
226 else
227 {
228 p_cmd->p_rsp_msg = p_buf;
229 }
230
231 return(TRUE);
232 }
233 }
234 else /* any handle read exception occurs, return error */
235 {
236 return(TRUE);
237 }
238
239 /* If here, still waiting */
240 return(FALSE);
241 }
242
243 /*******************************************************************************
244 **
245 ** Function gatt_sr_process_app_rsp
246 **
247 ** Description This function checks whether the response message from application
248 ** match any pending request or not.
249 **
250 ** Returns void
251 **
252 *******************************************************************************/
gatt_sr_process_app_rsp(tGATT_TCB * p_tcb,tGATT_IF gatt_if,UINT32 trans_id,UINT8 op_code,tGATT_STATUS status,tGATTS_RSP * p_msg)253 tGATT_STATUS gatt_sr_process_app_rsp (tGATT_TCB *p_tcb, tGATT_IF gatt_if,
254 UINT32 trans_id, UINT8 op_code,
255 tGATT_STATUS status, tGATTS_RSP *p_msg)
256 {
257 tGATT_STATUS ret_code = GATT_SUCCESS;
258 UNUSED(trans_id);
259
260 GATT_TRACE_DEBUG("gatt_sr_process_app_rsp gatt_if=%d", gatt_if);
261
262 gatt_sr_update_cback_cnt(p_tcb, gatt_if, FALSE, FALSE);
263
264 if (op_code == GATT_REQ_READ_MULTI)
265 {
266 /* If no error and still waiting, just return */
267 if (!process_read_multi_rsp (&p_tcb->sr_cmd, status, p_msg, p_tcb->payload_size))
268 return(GATT_SUCCESS);
269 }
270 else
271 {
272 if (op_code == GATT_REQ_PREPARE_WRITE && status == GATT_SUCCESS)
273 gatt_sr_update_prep_cnt(p_tcb, gatt_if, TRUE, FALSE);
274
275 if (op_code == GATT_REQ_EXEC_WRITE && status != GATT_SUCCESS)
276 gatt_sr_reset_cback_cnt(p_tcb);
277
278 p_tcb->sr_cmd.status = status;
279
280 if (gatt_sr_is_cback_cnt_zero(p_tcb)
281 && status == GATT_SUCCESS)
282 {
283 if (p_tcb->sr_cmd.p_rsp_msg == NULL)
284 {
285 p_tcb->sr_cmd.p_rsp_msg = attp_build_sr_msg (p_tcb, (UINT8)(op_code + 1), (tGATT_SR_MSG *)p_msg);
286 }
287 else
288 {
289 GATT_TRACE_ERROR("Exception!!! already has respond message");
290 }
291 }
292 }
293 if (gatt_sr_is_cback_cnt_zero(p_tcb))
294 {
295 if ( (p_tcb->sr_cmd.status == GATT_SUCCESS) && (p_tcb->sr_cmd.p_rsp_msg) )
296 {
297 ret_code = attp_send_sr_msg (p_tcb, p_tcb->sr_cmd.p_rsp_msg);
298 p_tcb->sr_cmd.p_rsp_msg = NULL;
299 }
300 else
301 {
302 ret_code = gatt_send_error_rsp (p_tcb, status, op_code, p_tcb->sr_cmd.handle, FALSE);
303 }
304
305 gatt_dequeue_sr_cmd(p_tcb);
306 }
307
308 GATT_TRACE_DEBUG("gatt_sr_process_app_rsp ret_code=%d", ret_code);
309
310 return ret_code;
311 }
312
313 /*******************************************************************************
314 **
315 ** Function gatt_process_exec_write_req
316 **
317 ** Description This function is called to process the execute write request
318 ** from client.
319 **
320 ** Returns void
321 **
322 *******************************************************************************/
gatt_process_exec_write_req(tGATT_TCB * p_tcb,UINT8 op_code,UINT16 len,UINT8 * p_data)323 void gatt_process_exec_write_req (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
324 {
325 UINT8 *p = p_data, flag, i = 0;
326 UINT32 trans_id = 0;
327 tGATT_IF gatt_if;
328 UINT16 conn_id;
329
330 UNUSED(len);
331
332 #if GATT_CONFORMANCE_TESTING == TRUE
333 if (gatt_cb.enable_err_rsp && gatt_cb.req_op_code == op_code)
334 {
335 GATT_TRACE_DEBUG("Conformance tst: forced err rspv for Execute Write: error status=%d",
336 gatt_cb.err_status);
337
338 gatt_send_error_rsp (p_tcb, gatt_cb.err_status, gatt_cb.req_op_code, gatt_cb.handle, FALSE);
339
340 return;
341 }
342 #endif
343
344 STREAM_TO_UINT8(flag, p);
345
346 /* mask the flag */
347 flag &= GATT_PREP_WRITE_EXEC;
348
349
350 /* no prep write is queued */
351 if (!gatt_sr_is_prep_cnt_zero(p_tcb))
352 {
353 trans_id = gatt_sr_enqueue_cmd(p_tcb, op_code, 0);
354 gatt_sr_copy_prep_cnt_to_cback_cnt(p_tcb);
355
356 for (i=0; i<GATT_MAX_APPS; i++)
357 {
358 if (p_tcb->prep_cnt[i])
359 {
360 gatt_if = (tGATT_IF) (i+1);
361 conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_if);
362 gatt_sr_send_req_callback(conn_id,
363 trans_id,
364 GATTS_REQ_TYPE_WRITE_EXEC,
365 (tGATTS_DATA *)&flag);
366 p_tcb->prep_cnt[i]= 0;
367 }
368 }
369 }
370 else /* nothing needs to be executed , send response now */
371 {
372 GATT_TRACE_ERROR("gatt_process_exec_write_req: no prepare write pending");
373 gatt_send_error_rsp(p_tcb, GATT_ERROR, GATT_REQ_EXEC_WRITE, 0, FALSE);
374 }
375 }
376
377 /*******************************************************************************
378 **
379 ** Function gatt_process_read_multi_req
380 **
381 ** Description This function is called to process the read multiple request
382 ** from client.
383 **
384 ** Returns void
385 **
386 *******************************************************************************/
gatt_process_read_multi_req(tGATT_TCB * p_tcb,UINT8 op_code,UINT16 len,UINT8 * p_data)387 void gatt_process_read_multi_req (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
388 {
389 UINT32 trans_id;
390 UINT16 handle = 0, ll = len;
391 UINT8 *p = p_data, i_rcb;
392 tGATT_STATUS err = GATT_SUCCESS;
393 UINT8 sec_flag, key_size;
394
395 GATT_TRACE_DEBUG("gatt_process_read_multi_req" );
396 p_tcb->sr_cmd.multi_req.num_handles = 0;
397
398 gatt_sr_get_sec_info(p_tcb->peer_bda,
399 p_tcb->transport,
400 &sec_flag,
401 &key_size);
402
403 #if GATT_CONFORMANCE_TESTING == TRUE
404 if (gatt_cb.enable_err_rsp && gatt_cb.req_op_code == op_code)
405 {
406 GATT_TRACE_DEBUG("Conformance tst: forced err rspvofr ReadMultiple: error status=%d", gatt_cb.err_status);
407
408 STREAM_TO_UINT16(handle, p);
409
410 gatt_send_error_rsp (p_tcb, gatt_cb.err_status, gatt_cb.req_op_code, handle, FALSE);
411
412 return;
413 }
414 #endif
415
416 while (ll >= 2 && p_tcb->sr_cmd.multi_req.num_handles < GATT_MAX_READ_MULTI_HANDLES)
417 {
418 STREAM_TO_UINT16(handle, p);
419
420 if ((i_rcb = gatt_sr_find_i_rcb_by_handle(handle)) < GATT_MAX_SR_PROFILES)
421 {
422 p_tcb->sr_cmd.multi_req.handles[p_tcb->sr_cmd.multi_req.num_handles++] = handle;
423
424 /* check read permission */
425 if ((err = gatts_read_attr_perm_check( gatt_cb.sr_reg[i_rcb].p_db,
426 FALSE,
427 handle,
428 sec_flag,
429 key_size))
430 != GATT_SUCCESS)
431 {
432 GATT_TRACE_DEBUG("read permission denied : 0x%02x", err);
433 break;
434 }
435 }
436 else
437 {
438 /* invalid handle */
439 err = GATT_INVALID_HANDLE;
440 break;
441 }
442 ll -= 2;
443 }
444
445 if (ll != 0)
446 {
447 GATT_TRACE_ERROR("max attribute handle reached in ReadMultiple Request.");
448 }
449
450 if (p_tcb->sr_cmd.multi_req.num_handles == 0)
451 err = GATT_INVALID_HANDLE;
452
453 if (err == GATT_SUCCESS)
454 {
455 if ((trans_id = gatt_sr_enqueue_cmd (p_tcb, op_code, p_tcb->sr_cmd.multi_req.handles[0])) != 0)
456 {
457 gatt_sr_reset_cback_cnt(p_tcb); /* read multiple use multi_rsp_q's count*/
458
459 for (ll = 0; ll < p_tcb->sr_cmd.multi_req.num_handles; ll ++) {
460 tGATTS_RSP *p_msg = (tGATTS_RSP *)osi_calloc(sizeof(tGATTS_RSP));
461 handle = p_tcb->sr_cmd.multi_req.handles[ll];
462 i_rcb = gatt_sr_find_i_rcb_by_handle(handle);
463
464 p_msg->attr_value.handle = handle;
465 err = gatts_read_attr_value_by_handle(p_tcb,
466 gatt_cb.sr_reg[i_rcb].p_db,
467 op_code,
468 handle,
469 0,
470 p_msg->attr_value.value,
471 &p_msg->attr_value.len,
472 GATT_MAX_ATTR_LEN,
473 sec_flag,
474 key_size,
475 trans_id);
476
477 if (err == GATT_SUCCESS) {
478 gatt_sr_process_app_rsp(p_tcb, gatt_cb.sr_reg[i_rcb].gatt_if ,trans_id, op_code, GATT_SUCCESS, p_msg);
479 }
480 /* either not using or done using the buffer, release it now */
481 osi_free(p_msg);
482 }
483 }
484 else
485 err = GATT_NO_RESOURCES;
486 }
487
488 /* in theroy BUSY is not possible(should already been checked), protected check */
489 if (err != GATT_SUCCESS && err != GATT_PENDING && err != GATT_BUSY)
490 gatt_send_error_rsp(p_tcb, err, op_code, handle, FALSE);
491 }
492
493 /*******************************************************************************
494 **
495 ** Function gatt_build_primary_service_rsp
496 **
497 ** Description Primamry service request processed internally. Theretically
498 ** only deal with ReadByTypeVAlue and ReadByGroupType.
499 **
500 ** Returns void
501 **
502 *******************************************************************************/
gatt_build_primary_service_rsp(BT_HDR * p_msg,tGATT_TCB * p_tcb,UINT8 op_code,UINT16 s_hdl,UINT16 e_hdl,UINT8 * p_data,tBT_UUID value)503 static tGATT_STATUS gatt_build_primary_service_rsp (BT_HDR *p_msg, tGATT_TCB *p_tcb,
504 UINT8 op_code, UINT16 s_hdl,
505 UINT16 e_hdl, UINT8 *p_data, tBT_UUID value)
506 {
507 tGATT_STATUS status = GATT_NOT_FOUND;
508 UINT8 handle_len =4, *p ;
509 tGATT_SR_REG *p_rcb;
510 tGATT_SRV_LIST_INFO *p_list= &gatt_cb.srv_list_info;
511 tGATT_SRV_LIST_ELEM *p_srv=NULL;
512 tBT_UUID *p_uuid;
513
514 UNUSED(p_data);
515
516 p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
517
518 p_srv = p_list->p_first;
519
520 while (p_srv)
521 {
522 p_rcb = GATT_GET_SR_REG_PTR(p_srv->i_sreg);
523
524 if (p_rcb->in_use &&
525 p_rcb->s_hdl >= s_hdl &&
526 p_rcb->s_hdl <= e_hdl &&
527 p_rcb->type == GATT_UUID_PRI_SERVICE)
528 {
529 if ((p_uuid = gatts_get_service_uuid (p_rcb->p_db)) != NULL)
530 {
531 if (op_code == GATT_REQ_READ_BY_GRP_TYPE)
532 handle_len = 4 + p_uuid->len;
533
534 /* get the length byte in the repsonse */
535 if (p_msg->offset ==0)
536 {
537 *p ++ = op_code + 1;
538 p_msg->len ++;
539 p_msg->offset = handle_len;
540
541 if (op_code == GATT_REQ_READ_BY_GRP_TYPE)
542 {
543 *p ++ = (UINT8)p_msg->offset; /* length byte */
544 p_msg->len ++;
545 }
546 }
547
548 if (p_msg->len + p_msg->offset <= p_tcb->payload_size &&
549 handle_len == p_msg->offset)
550 {
551 if (op_code != GATT_REQ_FIND_TYPE_VALUE ||
552 gatt_uuid_compare(value, *p_uuid))
553 {
554 UINT16_TO_STREAM(p, p_rcb->s_hdl);
555
556 if (p_list->p_last_primary == p_srv &&
557 p_list->p_last_primary == p_list->p_last)
558 {
559 GATT_TRACE_DEBUG("Use 0xFFFF for the last primary attribute");
560 UINT16_TO_STREAM(p, 0xFFFF); /* see GATT ERRATA 4065, 4063, ATT ERRATA 4062 */
561 }
562 else
563 {
564 UINT16_TO_STREAM(p, p_rcb->e_hdl);
565 }
566
567 if (op_code == GATT_REQ_READ_BY_GRP_TYPE)
568 gatt_build_uuid_to_stream(&p, *p_uuid);
569
570 status = GATT_SUCCESS;
571 p_msg->len += p_msg->offset;
572 }
573 }
574 else
575 break;
576 }
577 }
578 p_srv = p_srv->p_next;
579 }
580 p_msg->offset = L2CAP_MIN_OFFSET;
581
582 return status;
583 }
584
585 /*******************************************************************************
586 **
587 ** Function gatt_build_find_info_rsp
588 **
589 ** Description fill the find information response information in the given
590 ** buffer.
591 **
592 ** Returns TRUE: if data filled sucessfully.
593 ** FALSE: packet full, or format mismatch.
594 **
595 *******************************************************************************/
gatt_build_find_info_rsp(tGATT_SR_REG * p_rcb,BT_HDR * p_msg,UINT16 * p_len,UINT16 s_hdl,UINT16 e_hdl)596 static tGATT_STATUS gatt_build_find_info_rsp(tGATT_SR_REG *p_rcb, BT_HDR *p_msg, UINT16 *p_len,
597 UINT16 s_hdl, UINT16 e_hdl)
598 {
599 tGATT_STATUS status = GATT_NOT_FOUND;
600 UINT8 *p;
601 UINT16 len = *p_len;
602 tGATT_ATTR16 *p_attr = NULL;
603 UINT8 info_pair_len[2] = {4, 18};
604
605 if (!p_rcb->p_db || !p_rcb->p_db->p_attr_list)
606 return status;
607
608 /* check the attribute database */
609 p_attr = (tGATT_ATTR16 *) p_rcb->p_db->p_attr_list;
610
611 p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET + p_msg->len;
612
613 while (p_attr)
614 {
615 if (p_attr->handle > e_hdl)
616 {
617 break;
618 }
619
620 if (p_attr->handle >= s_hdl)
621 {
622 if (p_msg->offset == 0)
623 p_msg->offset = (p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16) ? GATT_INFO_TYPE_PAIR_16 : GATT_INFO_TYPE_PAIR_128;
624
625 if (len >= info_pair_len[p_msg->offset - 1])
626 {
627 if (p_msg->offset == GATT_INFO_TYPE_PAIR_16 && p_attr->uuid_type == GATT_ATTR_UUID_TYPE_16)
628 {
629 UINT16_TO_STREAM(p, p_attr->handle);
630 UINT16_TO_STREAM(p, p_attr->uuid);
631 }
632 else if (p_msg->offset == GATT_INFO_TYPE_PAIR_128 && p_attr->uuid_type == GATT_ATTR_UUID_TYPE_128 )
633 {
634 UINT16_TO_STREAM(p, p_attr->handle);
635 ARRAY_TO_STREAM (p, ((tGATT_ATTR128 *) p_attr)->uuid, LEN_UUID_128);
636 }
637 else if (p_msg->offset == GATT_INFO_TYPE_PAIR_128 && p_attr->uuid_type == GATT_ATTR_UUID_TYPE_32)
638 {
639 UINT16_TO_STREAM(p, p_attr->handle);
640 gatt_convert_uuid32_to_uuid128(p, ((tGATT_ATTR32 *) p_attr)->uuid);
641 p += LEN_UUID_128;
642 }
643 else
644 {
645 GATT_TRACE_ERROR("format mismatch");
646 status = GATT_NO_RESOURCES;
647 break;
648 /* format mismatch */
649 }
650 p_msg->len += info_pair_len[p_msg->offset - 1];
651 len -= info_pair_len[p_msg->offset - 1];
652 status = GATT_SUCCESS;
653
654 }
655 else
656 {
657 status = GATT_NO_RESOURCES;
658 break;
659 }
660 }
661 p_attr = (tGATT_ATTR16 *)p_attr->p_next;
662 }
663
664 *p_len = len;
665 return status;
666 }
667
668 /*******************************************************************************
669 **
670 ** Function gatts_internal_read_by_type_req
671 **
672 ** Description check to see if the ReadByType request can be handled internally.
673 **
674 ** Returns void
675 **
676 *******************************************************************************/
gatts_validate_packet_format(UINT8 op_code,UINT16 * p_len,UINT8 ** p_data,tBT_UUID * p_uuid_filter,UINT16 * p_s_hdl,UINT16 * p_e_hdl)677 static tGATT_STATUS gatts_validate_packet_format(UINT8 op_code, UINT16 *p_len,
678 UINT8 **p_data, tBT_UUID *p_uuid_filter,
679 UINT16 *p_s_hdl, UINT16 *p_e_hdl)
680 {
681 tGATT_STATUS reason = GATT_SUCCESS;
682 UINT16 uuid_len, s_hdl = 0, e_hdl = 0;
683 UINT16 len = *p_len;
684 UINT8 *p = *p_data;
685
686 if (len >= 4)
687 {
688 /* obtain starting handle, and ending handle */
689 STREAM_TO_UINT16(s_hdl, p);
690 STREAM_TO_UINT16(e_hdl, p);
691 len -= 4;
692
693 if (s_hdl > e_hdl || !GATT_HANDLE_IS_VALID(s_hdl) || !GATT_HANDLE_IS_VALID(e_hdl))
694 {
695 reason = GATT_INVALID_HANDLE;
696 }
697 /* for these PDUs, uuid filter must present */
698 else if (op_code == GATT_REQ_READ_BY_GRP_TYPE ||
699 op_code == GATT_REQ_FIND_TYPE_VALUE ||
700 op_code == GATT_REQ_READ_BY_TYPE)
701 {
702 if (len >= 2 && p_uuid_filter != NULL)
703 {
704 uuid_len = (op_code == GATT_REQ_FIND_TYPE_VALUE) ? 2 : len;
705
706 /* parse uuid now */
707 if (gatt_parse_uuid_from_cmd (p_uuid_filter, uuid_len, &p) == FALSE ||
708 p_uuid_filter->len == 0)
709 {
710 GATT_TRACE_DEBUG("UUID filter does not exsit");
711 reason = GATT_INVALID_PDU;
712 }
713 else
714 len -= p_uuid_filter->len;
715 }
716 else
717 reason = GATT_INVALID_PDU;
718 }
719 }
720 else
721 reason = GATT_INVALID_PDU;
722
723 *p_data = p;
724 *p_len = len;
725 *p_s_hdl = s_hdl;
726 *p_e_hdl = e_hdl;
727
728 return reason;
729 }
730
731 /*******************************************************************************
732 **
733 ** Function gatts_process_primary_service_req
734 **
735 ** Description process ReadByGroupType/ReadByTypeValue request, for discover
736 ** all primary services or discover primary service by UUID request.
737 **
738 ** Returns void
739 **
740 *******************************************************************************/
gatts_process_primary_service_req(tGATT_TCB * p_tcb,UINT8 op_code,UINT16 len,UINT8 * p_data)741 void gatts_process_primary_service_req(tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
742 {
743 UINT8 reason = GATT_INVALID_PDU;
744 UINT16 s_hdl = 0, e_hdl = 0;
745 tBT_UUID uuid, value, primary_service = {LEN_UUID_16, {GATT_UUID_PRI_SERVICE}};
746 BT_HDR *p_msg = NULL;
747 UINT16 msg_len = (UINT16)(sizeof(BT_HDR) + p_tcb->payload_size + L2CAP_MIN_OFFSET);
748
749 memset (&value, 0, sizeof(tBT_UUID));
750 reason = gatts_validate_packet_format(op_code, &len, &p_data, &uuid, &s_hdl, &e_hdl);
751
752 if (reason == GATT_SUCCESS)
753 {
754 if (gatt_uuid_compare(uuid, primary_service))
755 {
756 if (op_code == GATT_REQ_FIND_TYPE_VALUE)
757 {
758 if (gatt_parse_uuid_from_cmd(&value, len, &p_data) == FALSE)
759 reason = GATT_INVALID_PDU;
760 }
761
762 if (reason == GATT_SUCCESS) {
763 p_msg = (BT_HDR *)osi_calloc(msg_len);
764 reason = gatt_build_primary_service_rsp (p_msg, p_tcb, op_code,
765 s_hdl, e_hdl, p_data,
766 value);
767 }
768 }
769 else
770 {
771 if (op_code == GATT_REQ_READ_BY_GRP_TYPE)
772 {
773 reason = GATT_UNSUPPORT_GRP_TYPE;
774 GATT_TRACE_DEBUG("unexpected ReadByGrpType Group: 0x%04x", uuid.uu.uuid16);
775 }
776 else
777 {
778 /* we do not support ReadByTypeValue with any non-primamry_service type */
779 reason = GATT_NOT_FOUND;
780 GATT_TRACE_DEBUG("unexpected ReadByTypeValue type: 0x%04x", uuid.uu.uuid16);
781 }
782 }
783 }
784
785 if (reason != GATT_SUCCESS)
786 {
787 osi_free(p_msg);
788 gatt_send_error_rsp (p_tcb, reason, op_code, s_hdl, FALSE);
789 }
790 else
791 attp_send_sr_msg(p_tcb, p_msg);
792
793 }
794
795 /*******************************************************************************
796 **
797 ** Function gatts_process_find_info
798 **
799 ** Description process find information request, for discover character
800 ** descriptors.
801 **
802 ** Returns void
803 **
804 *******************************************************************************/
gatts_process_find_info(tGATT_TCB * p_tcb,UINT8 op_code,UINT16 len,UINT8 * p_data)805 static void gatts_process_find_info(tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
806 {
807 UINT8 reason = GATT_INVALID_PDU, *p;
808 UINT16 s_hdl = 0, e_hdl = 0, buf_len;
809 BT_HDR *p_msg = NULL;
810 tGATT_SR_REG *p_rcb;
811 tGATT_SRV_LIST_INFO *p_list= &gatt_cb.srv_list_info;
812 tGATT_SRV_LIST_ELEM *p_srv=NULL;
813
814 reason = gatts_validate_packet_format(op_code, &len, &p_data, NULL, &s_hdl, &e_hdl);
815
816 if (reason == GATT_SUCCESS)
817 {
818 buf_len = (UINT16)(sizeof(BT_HDR) + p_tcb->payload_size + L2CAP_MIN_OFFSET);
819
820 p_msg = (BT_HDR *)osi_calloc(buf_len);
821 reason = GATT_NOT_FOUND;
822
823 p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
824 *p ++ = op_code + 1;
825 p_msg->len = 2;
826
827 buf_len = p_tcb->payload_size - 2;
828
829 p_srv = p_list->p_first;
830
831 while (p_srv) {
832 p_rcb = GATT_GET_SR_REG_PTR(p_srv->i_sreg);
833
834 if (p_rcb->in_use && !(p_rcb->s_hdl > e_hdl ||
835 p_rcb->e_hdl < s_hdl)) {
836 reason = gatt_build_find_info_rsp(p_rcb, p_msg, &buf_len,
837 s_hdl, e_hdl);
838 if (reason == GATT_NO_RESOURCES) {
839 reason = GATT_SUCCESS;
840 break;
841 }
842 }
843 p_srv = p_srv->p_next;
844 }
845 *p = (UINT8)p_msg->offset;
846
847 p_msg->offset = L2CAP_MIN_OFFSET;
848 }
849
850 if (reason != GATT_SUCCESS)
851 {
852 osi_free(p_msg);
853 gatt_send_error_rsp (p_tcb, reason, op_code, s_hdl, FALSE);
854 }
855 else
856 attp_send_sr_msg(p_tcb, p_msg);
857
858 }
859
860 /*******************************************************************************
861 **
862 ** Function gatts_process_mtu_req
863 **
864 ** Description This function is called to process excahnge MTU request.
865 ** Only used on LE.
866 **
867 ** Returns void
868 **
869 *******************************************************************************/
gatts_process_mtu_req(tGATT_TCB * p_tcb,UINT16 len,UINT8 * p_data)870 static void gatts_process_mtu_req (tGATT_TCB *p_tcb, UINT16 len, UINT8 *p_data)
871 {
872 UINT16 mtu = 0;
873 UINT8 *p = p_data, i;
874 BT_HDR *p_buf;
875 UINT16 conn_id;
876
877 /* BR/EDR conenction, send error response */
878 if (p_tcb->att_lcid != L2CAP_ATT_CID)
879 {
880 gatt_send_error_rsp (p_tcb, GATT_REQ_NOT_SUPPORTED, GATT_REQ_MTU, 0, FALSE);
881 }
882 else if (len < GATT_MTU_REQ_MIN_LEN)
883 {
884 GATT_TRACE_ERROR("invalid MTU request PDU received.");
885 gatt_send_error_rsp (p_tcb, GATT_INVALID_PDU, GATT_REQ_MTU, 0, FALSE);
886 }
887 else
888 {
889 STREAM_TO_UINT16 (mtu, p);
890 /* mtu must be greater than default MTU which is 23/48 */
891 if (mtu < GATT_DEF_BLE_MTU_SIZE)
892 p_tcb->payload_size = GATT_DEF_BLE_MTU_SIZE;
893 else if (mtu > GATT_MAX_MTU_SIZE)
894 p_tcb->payload_size = GATT_MAX_MTU_SIZE;
895 else
896 p_tcb->payload_size = mtu;
897
898 GATT_TRACE_ERROR("MTU request PDU with MTU size %d", p_tcb->payload_size);
899
900 l2cble_set_fixed_channel_tx_data_length(p_tcb->peer_bda, L2CAP_ATT_CID, p_tcb->payload_size);
901
902 if ((p_buf = attp_build_sr_msg(p_tcb, GATT_RSP_MTU, (tGATT_SR_MSG *) &p_tcb->payload_size)) != NULL)
903 {
904 attp_send_sr_msg (p_tcb, p_buf);
905
906 /* Notify all registered applicaiton with new MTU size. Us a transaction ID */
907 /* of 0, as no response is allowed from applcations */
908
909 for (i = 0; i < GATT_MAX_APPS; i ++)
910 {
911 if (gatt_cb.cl_rcb[i].in_use )
912 {
913 conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_cb.cl_rcb[i].gatt_if);
914 gatt_sr_send_req_callback(conn_id, 0, GATTS_REQ_TYPE_MTU,
915 (tGATTS_DATA *)&p_tcb->payload_size);
916 }
917 }
918
919 }
920 }
921 }
922
923 /*******************************************************************************
924 **
925 ** Function gatts_process_read_by_type_req
926 **
927 ** Description process Read By type request.
928 ** This PDU can be used to perform:
929 ** - read characteristic value
930 ** - read characteristic descriptor value
931 ** - discover characteristic
932 ** - discover characteristic by UUID
933 ** - relationship discovery
934 **
935 ** Returns void
936 **
937 *******************************************************************************/
gatts_process_read_by_type_req(tGATT_TCB * p_tcb,UINT8 op_code,UINT16 len,UINT8 * p_data)938 void gatts_process_read_by_type_req(tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, UINT8 *p_data)
939 {
940 tBT_UUID uuid;
941 tGATT_SR_REG *p_rcb;
942 size_t msg_len = sizeof(BT_HDR) + p_tcb->payload_size + L2CAP_MIN_OFFSET;
943 UINT16 buf_len, s_hdl, e_hdl, err_hdl = 0;
944 BT_HDR *p_msg = NULL;
945 tGATT_STATUS reason, ret;
946 UINT8 *p;
947 UINT8 sec_flag, key_size;
948 tGATT_SRV_LIST_INFO *p_list= &gatt_cb.srv_list_info;
949 tGATT_SRV_LIST_ELEM *p_srv=NULL;
950
951 reason = gatts_validate_packet_format(op_code, &len, &p_data, &uuid, &s_hdl, &e_hdl);
952
953 #if GATT_CONFORMANCE_TESTING == TRUE
954 if (gatt_cb.enable_err_rsp && gatt_cb.req_op_code == op_code)
955 {
956 GATT_TRACE_DEBUG("Conformance tst: forced err rsp for ReadByType: error status=%d", gatt_cb.err_status);
957
958 gatt_send_error_rsp (p_tcb, gatt_cb.err_status, gatt_cb.req_op_code, s_hdl, FALSE);
959
960 return;
961 }
962 #endif
963
964 if (reason == GATT_SUCCESS)
965 {
966 p_msg = (BT_HDR *)osi_calloc(msg_len);
967 p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
968
969 *p ++ = op_code + 1;
970 /* reserve length byte */
971 p_msg->len = 2;
972 buf_len = p_tcb->payload_size - 2;
973
974 reason = GATT_NOT_FOUND;
975
976 p_srv = p_list->p_first;
977
978 while (p_srv) {
979 p_rcb = GATT_GET_SR_REG_PTR(p_srv->i_sreg);
980
981 if (p_rcb->in_use && !(p_rcb->s_hdl > e_hdl ||
982 p_rcb->e_hdl < s_hdl)) {
983 gatt_sr_get_sec_info(p_tcb->peer_bda, p_tcb->transport,
984 &sec_flag, &key_size);
985
986 ret = gatts_db_read_attr_value_by_type(p_tcb,
987 p_rcb->p_db,
988 op_code,
989 p_msg,
990 s_hdl,
991 e_hdl,
992 uuid,
993 &buf_len,
994 sec_flag,
995 key_size,
996 0,
997 &err_hdl);
998 if (ret != GATT_NOT_FOUND) {
999 reason = ret;
1000
1001 if (ret == GATT_NO_RESOURCES)
1002 reason = GATT_SUCCESS;
1003 }
1004 if (ret != GATT_SUCCESS && ret != GATT_NOT_FOUND) {
1005 s_hdl = err_hdl;
1006 break;
1007 }
1008 }
1009 p_srv = p_srv->p_next;
1010 }
1011 *p = (UINT8)p_msg->offset;
1012 p_msg->offset = L2CAP_MIN_OFFSET;
1013 }
1014 if (reason != GATT_SUCCESS)
1015 {
1016 osi_free(p_msg);
1017
1018 /* in theroy BUSY is not possible(should already been checked), protected check */
1019 if (reason != GATT_PENDING && reason != GATT_BUSY)
1020 gatt_send_error_rsp (p_tcb, reason, op_code, s_hdl, FALSE);
1021 }
1022 else
1023 attp_send_sr_msg(p_tcb, p_msg);
1024
1025 }
1026
1027 /*******************************************************************************
1028 **
1029 ** Function gatts_process_write_req
1030 **
1031 ** Description This function is called to process the write request
1032 ** from client.
1033 **
1034 ** Returns void
1035 **
1036 *******************************************************************************/
gatts_process_write_req(tGATT_TCB * p_tcb,UINT8 i_rcb,UINT16 handle,UINT8 op_code,UINT16 len,UINT8 * p_data)1037 void gatts_process_write_req (tGATT_TCB *p_tcb, UINT8 i_rcb, UINT16 handle,
1038 UINT8 op_code, UINT16 len, UINT8 *p_data)
1039 {
1040 tGATTS_DATA sr_data;
1041 UINT32 trans_id;
1042 tGATT_STATUS status;
1043 UINT8 sec_flag, key_size, *p = p_data;
1044 tGATT_SR_REG *p_sreg;
1045 UINT16 conn_id;
1046
1047 memset(&sr_data, 0, sizeof(tGATTS_DATA));
1048
1049 switch (op_code)
1050 {
1051 case GATT_REQ_PREPARE_WRITE:
1052 if (len < 2) {
1053 GATT_TRACE_ERROR("%s: Prepare write request was invalid - missing offset, sending error response", __func__);
1054 gatt_send_error_rsp(p_tcb, GATT_INVALID_PDU, op_code, handle, FALSE);
1055 return;
1056 }
1057 sr_data.write_req.is_prep = TRUE;
1058 STREAM_TO_UINT16(sr_data.write_req.offset, p);
1059 len -= 2;
1060 /* fall through */
1061 case GATT_SIGN_CMD_WRITE:
1062 if (op_code == GATT_SIGN_CMD_WRITE)
1063 {
1064 GATT_TRACE_DEBUG("Write CMD with data sigining" );
1065 len -= GATT_AUTH_SIGN_LEN;
1066 }
1067 /* fall through */
1068 case GATT_CMD_WRITE:
1069 case GATT_REQ_WRITE:
1070 if (op_code == GATT_REQ_WRITE || op_code == GATT_REQ_PREPARE_WRITE)
1071 sr_data.write_req.need_rsp = TRUE;
1072 sr_data.write_req.handle = handle;
1073 sr_data.write_req.len = len;
1074 if (len != 0 && p != NULL)
1075 {
1076 memcpy (sr_data.write_req.value, p, len);
1077 }
1078 break;
1079 }
1080
1081 gatt_sr_get_sec_info(p_tcb->peer_bda,
1082 p_tcb->transport,
1083 &sec_flag,
1084 &key_size);
1085
1086 status = gatts_write_attr_perm_check (gatt_cb.sr_reg[i_rcb].p_db,
1087 op_code,
1088 handle,
1089 sr_data.write_req.offset,
1090 p,
1091 len,
1092 sec_flag,
1093 key_size);
1094
1095 if (status == GATT_SUCCESS)
1096 {
1097 if ((trans_id = gatt_sr_enqueue_cmd(p_tcb, op_code, handle)) != 0)
1098 {
1099 p_sreg = &gatt_cb.sr_reg[i_rcb];
1100 conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_sreg->gatt_if);
1101 gatt_sr_send_req_callback(conn_id,
1102 trans_id,
1103 GATTS_REQ_TYPE_WRITE,
1104 &sr_data);
1105
1106 status = GATT_PENDING;
1107 }
1108 else
1109 {
1110 GATT_TRACE_ERROR("max pending command, send error");
1111 status = GATT_BUSY; /* max pending command, application error */
1112 }
1113 }
1114
1115 /* in theroy BUSY is not possible(should already been checked), protected check */
1116 if (status != GATT_PENDING && status != GATT_BUSY &&
1117 (op_code == GATT_REQ_PREPARE_WRITE || op_code == GATT_REQ_WRITE))
1118 {
1119 gatt_send_error_rsp (p_tcb, status, op_code, handle, FALSE);
1120 }
1121 return;
1122 }
1123
1124 /*******************************************************************************
1125 **
1126 ** Function gatts_process_read_req
1127 **
1128 ** Description This function is called to process the read request
1129 ** from client.
1130 **
1131 ** Returns void
1132 **
1133 *******************************************************************************/
gatts_process_read_req(tGATT_TCB * p_tcb,tGATT_SR_REG * p_rcb,UINT8 op_code,UINT16 handle,UINT16 len,UINT8 * p_data)1134 static void gatts_process_read_req(tGATT_TCB *p_tcb, tGATT_SR_REG *p_rcb, UINT8 op_code,
1135 UINT16 handle, UINT16 len, UINT8 *p_data)
1136 {
1137 size_t buf_len = sizeof(BT_HDR) + p_tcb->payload_size + L2CAP_MIN_OFFSET;
1138 tGATT_STATUS reason;
1139 UINT8 sec_flag, key_size, *p;
1140 UINT16 offset = 0, value_len = 0;
1141 BT_HDR *p_msg = (BT_HDR *)osi_calloc(buf_len);
1142
1143 UNUSED(len);
1144
1145 if (op_code == GATT_REQ_READ_BLOB)
1146 STREAM_TO_UINT16(offset, p_data);
1147
1148 p = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
1149 *p ++ = op_code + 1;
1150 p_msg->len = 1;
1151 buf_len = p_tcb->payload_size - 1;
1152
1153 gatt_sr_get_sec_info(p_tcb->peer_bda, p_tcb->transport, &sec_flag,
1154 &key_size);
1155
1156 reason = gatts_read_attr_value_by_handle(p_tcb,
1157 p_rcb->p_db,
1158 op_code,
1159 handle,
1160 offset,
1161 p,
1162 &value_len,
1163 (uint16_t)buf_len,
1164 sec_flag,
1165 key_size,
1166 0);
1167
1168 p_msg->len += value_len;
1169
1170 if (reason != GATT_SUCCESS)
1171 {
1172 osi_free(p_msg);
1173
1174 /* in theroy BUSY is not possible(should already been checked), protected check */
1175 if (reason != GATT_PENDING && reason != GATT_BUSY)
1176 gatt_send_error_rsp (p_tcb, reason, op_code, handle, FALSE);
1177 }
1178 else
1179 attp_send_sr_msg(p_tcb, p_msg);
1180
1181 }
1182
1183 /*******************************************************************************
1184 **
1185 ** Function gatts_process_attribute_req
1186 **
1187 ** Description This function is called to process the per attribute handle request
1188 ** from client.
1189 **
1190 ** Returns void
1191 **
1192 *******************************************************************************/
gatts_process_attribute_req(tGATT_TCB * p_tcb,UINT8 op_code,UINT16 len,UINT8 * p_data)1193 void gatts_process_attribute_req (tGATT_TCB *p_tcb, UINT8 op_code,
1194 UINT16 len, UINT8 *p_data)
1195 {
1196 UINT16 handle = 0;
1197 UINT8 *p = p_data, i;
1198 tGATT_SR_REG *p_rcb = gatt_cb.sr_reg;
1199 tGATT_STATUS status = GATT_INVALID_HANDLE;
1200 tGATT_ATTR16 *p_attr;
1201
1202 if (len < 2)
1203 {
1204 GATT_TRACE_ERROR("Illegal PDU length, discard request");
1205 status = GATT_INVALID_PDU;
1206 }
1207 else
1208 {
1209 STREAM_TO_UINT16(handle, p);
1210 len -= 2;
1211 }
1212
1213 #if GATT_CONFORMANCE_TESTING == TRUE
1214 gatt_cb.handle = handle;
1215 if (gatt_cb.enable_err_rsp && gatt_cb.req_op_code == op_code)
1216 {
1217 GATT_TRACE_DEBUG("Conformance tst: forced err rsp: error status=%d", gatt_cb.err_status);
1218
1219 gatt_send_error_rsp (p_tcb, gatt_cb.err_status, gatt_cb.req_op_code, handle, FALSE);
1220
1221 return;
1222 }
1223 #endif
1224
1225 if (GATT_HANDLE_IS_VALID(handle))
1226 {
1227 for (i = 0; i < GATT_MAX_SR_PROFILES; i ++, p_rcb ++)
1228 {
1229 if (p_rcb->in_use && p_rcb->s_hdl <= handle && p_rcb->e_hdl >= handle)
1230 {
1231 p_attr = (tGATT_ATTR16 *)p_rcb->p_db->p_attr_list;
1232
1233 while (p_attr)
1234 {
1235 if (p_attr->handle == handle)
1236 {
1237 switch (op_code)
1238 {
1239 case GATT_REQ_READ: /* read char/char descriptor value */
1240 case GATT_REQ_READ_BLOB:
1241 gatts_process_read_req(p_tcb, p_rcb, op_code, handle, len, p);
1242 break;
1243
1244 case GATT_REQ_WRITE: /* write char/char descriptor value */
1245 case GATT_CMD_WRITE:
1246 case GATT_SIGN_CMD_WRITE:
1247 case GATT_REQ_PREPARE_WRITE:
1248 gatts_process_write_req(p_tcb, i, handle, op_code, len, p);
1249 break;
1250 default:
1251 break;
1252 }
1253 status = GATT_SUCCESS;
1254 break;
1255 }
1256 p_attr = (tGATT_ATTR16 *)p_attr->p_next;
1257 }
1258 break;
1259 }
1260 }
1261 }
1262
1263 if (status != GATT_SUCCESS && op_code != GATT_CMD_WRITE && op_code != GATT_SIGN_CMD_WRITE)
1264 gatt_send_error_rsp (p_tcb, status, op_code, handle, FALSE);
1265 }
1266
1267 /*******************************************************************************
1268 **
1269 ** Function gatts_proc_srv_chg_ind_ack
1270 **
1271 ** Description This function process the service changed indicaiton ACK
1272 **
1273 ** Returns void
1274 **
1275 *******************************************************************************/
gatts_proc_srv_chg_ind_ack(tGATT_TCB * p_tcb)1276 static void gatts_proc_srv_chg_ind_ack(tGATT_TCB *p_tcb )
1277 {
1278 tGATTS_SRV_CHG_REQ req;
1279 tGATTS_SRV_CHG *p_buf = NULL;
1280
1281 GATT_TRACE_DEBUG("gatts_proc_srv_chg_ind_ack");
1282
1283 if ((p_buf = gatt_is_bda_in_the_srv_chg_clt_list(p_tcb->peer_bda)) != NULL)
1284 {
1285 GATT_TRACE_DEBUG("NV update set srv chg = FALSE");
1286 p_buf->srv_changed = FALSE;
1287 memcpy(&req.srv_chg, p_buf, sizeof(tGATTS_SRV_CHG));
1288 if (gatt_cb.cb_info.p_srv_chg_callback)
1289 (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_UPDATE_CLIENT,&req, NULL);
1290 }
1291 }
1292
1293 /*******************************************************************************
1294 **
1295 ** Function gatts_chk_pending_ind
1296 **
1297 ** Description This function check any pending indication needs to be sent if
1298 ** there is a pending indication then sent the indication
1299 **
1300 ** Returns void
1301 **
1302 *******************************************************************************/
gatts_chk_pending_ind(tGATT_TCB * p_tcb)1303 static void gatts_chk_pending_ind(tGATT_TCB *p_tcb )
1304 {
1305 GATT_TRACE_DEBUG("%s", __func__);
1306
1307 tGATT_VALUE *p_buf = (tGATT_VALUE *)fixed_queue_try_peek_first(p_tcb->pending_ind_q);
1308 if (p_buf != NULL)
1309 {
1310 GATTS_HandleValueIndication(p_buf->conn_id,
1311 p_buf->handle,
1312 p_buf->len,
1313 p_buf->value);
1314 osi_free(fixed_queue_try_remove_from_queue(p_tcb->pending_ind_q,
1315 p_buf));
1316 }
1317 }
1318
1319 /*******************************************************************************
1320 **
1321 ** Function gatts_proc_ind_ack
1322 **
1323 ** Description This function process the Indication ack
1324 **
1325 ** Returns TRUE continue to process the indication ack by the aaplication
1326 ** if the ACk is not a Service Changed Indication Ack
1327 **
1328 *******************************************************************************/
gatts_proc_ind_ack(tGATT_TCB * p_tcb,UINT16 ack_handle)1329 static BOOLEAN gatts_proc_ind_ack(tGATT_TCB *p_tcb, UINT16 ack_handle)
1330 {
1331 BOOLEAN continue_processing = TRUE;
1332
1333 GATT_TRACE_DEBUG ("gatts_proc_ind_ack ack handle=%d", ack_handle);
1334
1335 if (ack_handle == gatt_cb.handle_of_h_r)
1336 {
1337 gatts_proc_srv_chg_ind_ack(p_tcb);
1338 /* there is no need to inform the application since srv chg is handled internally by GATT */
1339 continue_processing = FALSE;
1340 }
1341
1342 gatts_chk_pending_ind(p_tcb);
1343 return continue_processing;
1344 }
1345
1346 /*******************************************************************************
1347 **
1348 ** Function gatts_process_value_conf
1349 **
1350 ** Description This function is called to process the handle value confirmation.
1351 **
1352 ** Returns void
1353 **
1354 *******************************************************************************/
gatts_process_value_conf(tGATT_TCB * p_tcb,UINT8 op_code)1355 void gatts_process_value_conf(tGATT_TCB *p_tcb, UINT8 op_code)
1356 {
1357 UINT16 handle = p_tcb->indicate_handle;
1358 UINT32 trans_id;
1359 UINT8 i;
1360 tGATT_SR_REG *p_rcb = gatt_cb.sr_reg;
1361 BOOLEAN continue_processing;
1362 UINT16 conn_id;
1363
1364 alarm_cancel(p_tcb->conf_timer);
1365 if (GATT_HANDLE_IS_VALID(handle))
1366 {
1367 p_tcb->indicate_handle = 0;
1368 continue_processing = gatts_proc_ind_ack(p_tcb, handle);
1369
1370 if (continue_processing)
1371 {
1372 for (i = 0; i < GATT_MAX_SR_PROFILES; i ++, p_rcb ++)
1373 {
1374 if (p_rcb->in_use && p_rcb->s_hdl <= handle && p_rcb->e_hdl >= handle)
1375 {
1376 trans_id = gatt_sr_enqueue_cmd(p_tcb, op_code, handle);
1377 conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_rcb->gatt_if);
1378 gatt_sr_send_req_callback(conn_id,
1379 trans_id, GATTS_REQ_TYPE_CONF, (tGATTS_DATA *)&handle);
1380 }
1381 }
1382 }
1383 }
1384 else
1385 {
1386 GATT_TRACE_ERROR("unexpected handle value confirmation");
1387 }
1388 }
1389
1390 /*******************************************************************************
1391 **
1392 ** Function gatt_server_handle_client_req
1393 **
1394 ** Description This function is called to handle the client requests to
1395 ** server.
1396 **
1397 **
1398 ** Returns void
1399 **
1400 *******************************************************************************/
gatt_server_handle_client_req(tGATT_TCB * p_tcb,UINT8 op_code,UINT16 len,UINT8 * p_data)1401 void gatt_server_handle_client_req (tGATT_TCB *p_tcb, UINT8 op_code,
1402 UINT16 len, UINT8 *p_data)
1403 {
1404 /* there is pending command, discard this one */
1405 if (!gatt_sr_cmd_empty(p_tcb) && op_code != GATT_HANDLE_VALUE_CONF)
1406 return;
1407
1408 /* the size of the message may not be bigger than the local max PDU size*/
1409 /* The message has to be smaller than the agreed MTU, len does not include op code */
1410 if (len >= p_tcb->payload_size)
1411 {
1412 GATT_TRACE_ERROR("server receive invalid PDU size:%d pdu size:%d", len + 1, p_tcb->payload_size );
1413 /* for invalid request expecting response, send it now */
1414 if (op_code != GATT_CMD_WRITE &&
1415 op_code != GATT_SIGN_CMD_WRITE &&
1416 op_code != GATT_HANDLE_VALUE_CONF)
1417 {
1418 gatt_send_error_rsp (p_tcb, GATT_INVALID_PDU, op_code, 0, FALSE);
1419 }
1420 /* otherwise, ignore the pkt */
1421 }
1422 else
1423 {
1424 switch (op_code)
1425 {
1426 case GATT_REQ_READ_BY_GRP_TYPE: /* discover primary services */
1427 case GATT_REQ_FIND_TYPE_VALUE: /* discover service by UUID */
1428 gatts_process_primary_service_req (p_tcb, op_code, len, p_data);
1429 break;
1430
1431 case GATT_REQ_FIND_INFO:/* discover char descrptor */
1432 gatts_process_find_info(p_tcb, op_code, len, p_data);
1433 break;
1434
1435 case GATT_REQ_READ_BY_TYPE: /* read characteristic value, char descriptor value */
1436 /* discover characteristic, discover char by UUID */
1437 gatts_process_read_by_type_req(p_tcb, op_code, len, p_data);
1438 break;
1439
1440
1441 case GATT_REQ_READ: /* read char/char descriptor value */
1442 case GATT_REQ_READ_BLOB:
1443 case GATT_REQ_WRITE: /* write char/char descriptor value */
1444 case GATT_CMD_WRITE:
1445 case GATT_SIGN_CMD_WRITE:
1446 case GATT_REQ_PREPARE_WRITE:
1447 gatts_process_attribute_req (p_tcb, op_code, len, p_data);
1448 break;
1449
1450 case GATT_HANDLE_VALUE_CONF:
1451 gatts_process_value_conf (p_tcb, op_code);
1452 break;
1453
1454 case GATT_REQ_MTU:
1455 gatts_process_mtu_req (p_tcb, len, p_data);
1456 break;
1457
1458 case GATT_REQ_EXEC_WRITE:
1459 gatt_process_exec_write_req (p_tcb, op_code, len, p_data);
1460 break;
1461
1462 case GATT_REQ_READ_MULTI:
1463 gatt_process_read_multi_req (p_tcb, op_code, len, p_data);
1464 break;
1465
1466 default:
1467 break;
1468 }
1469 }
1470 }
1471
1472 #endif /* BLE_INCLUDED */
1473