1 /******************************************************************************
3 * Copyright (C) 1999-2012 Broadcom Corporation
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:
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 ******************************************************************************/
19 /******************************************************************************
21 * this file contains SDP discovery functions
23 ******************************************************************************/
29 #include "bt_target.h"
30 #include "bt_common.h"
42 #define SDP_DEBUG_RAW FALSE
45 /********************************************************************************/
46 /* L O C A L F U N C T I O N P R O T O T Y P E S */
47 /********************************************************************************/
48 #if SDP_CLIENT_ENABLED == TRUE
49 static void process_service_search_rsp(tCONN_CB* p_ccb, uint8_t* p_reply,
50 uint8_t* p_reply_end);
51 static void process_service_attr_rsp(tCONN_CB* p_ccb, uint8_t* p_reply,
52 uint8_t* p_reply_end);
53 static void process_service_search_attr_rsp(tCONN_CB* p_ccb, uint8_t* p_reply,
54 uint8_t* p_reply_end);
55 static UINT8 *save_attr_seq (tCONN_CB *p_ccb, UINT8 *p, UINT8 *p_msg_end);
56 static tSDP_DISC_REC *add_record (tSDP_DISCOVERY_DB *p_db, BD_ADDR p_bda);
57 static UINT8 *add_attr (UINT8 *p, tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_rec,
58 UINT16 attr_id, tSDP_DISC_ATTR *p_parent_attr, UINT8 nest_level);
60 /* Safety check in case we go crazy */
61 #define MAX_NEST_LEVELS 5
63 extern fixed_queue_t *btu_general_alarm_queue;
65 /*******************************************************************************
67 ** Function sdpu_build_uuid_seq
69 ** Description This function builds a UUID sequence from the list of
70 ** passed UUIDs. It is also passed the address of the output
73 ** Returns Pointer to next byte in the output buffer.
75 *******************************************************************************/
76 static UINT8 *sdpu_build_uuid_seq (UINT8 *p_out, UINT16 num_uuids, tSDP_UUID *p_uuid_list)
81 /* First thing is the data element header */
82 UINT8_TO_BE_STREAM (p_out, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
84 /* Remember where the length goes. Leave space for it. */
88 /* Now, loop through and put in all the UUID(s) */
89 for (xx = 0; xx < num_uuids; xx++, p_uuid_list++)
91 if (p_uuid_list->len == 2)
93 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
94 UINT16_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid16);
96 else if (p_uuid_list->len == 4)
98 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_FOUR_BYTES);
99 UINT32_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid32);
103 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_SIXTEEN_BYTES);
104 ARRAY_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid128, p_uuid_list->len);
108 /* Now, put in the length */
109 xx = (UINT16)(p_out - p_len - 1);
110 UINT8_TO_BE_STREAM (p_len, xx);
115 /*******************************************************************************
117 ** Function sdp_snd_service_search_req
119 ** Description Send a service search request to the SDP server.
123 *******************************************************************************/
124 static void sdp_snd_service_search_req(tCONN_CB *p_ccb, UINT8 cont_len, UINT8 * p_cont)
126 UINT8 *p, *p_start, *p_param_len;
127 BT_HDR *p_cmd = (BT_HDR *) osi_malloc(SDP_DATA_BUF_SIZE);
130 /* Prepare the buffer for sending the packet to L2CAP */
131 p_cmd->offset = L2CAP_MIN_OFFSET;
132 p = p_start = (UINT8 *)(p_cmd + 1) + L2CAP_MIN_OFFSET;
134 /* Build a service search request packet */
135 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_SEARCH_REQ);
136 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
137 p_ccb->transaction_id++;
139 /* Skip the length, we need to add it at the end */
143 /* Build the UID sequence. */
144 #if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
145 p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
147 p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
150 /* Set max service record count */
151 UINT16_TO_BE_STREAM (p, sdp_cb.max_recs_per_search);
153 /* Set continuation state */
154 UINT8_TO_BE_STREAM (p, cont_len);
156 /* if this is not the first request */
157 if(cont_len && p_cont)
159 memcpy(p, p_cont, cont_len);
163 /* Go back and put the parameter length into the buffer */
164 param_len = (UINT16)(p - p_param_len - 2);
165 UINT16_TO_BE_STREAM (p_param_len, param_len);
167 p_ccb->disc_state = SDP_DISC_WAIT_HANDLES;
169 /* Set the length of the SDP data in the buffer */
170 p_cmd->len = (UINT16)(p - p_start);
172 #if (SDP_DEBUG_RAW == TRUE)
173 SDP_TRACE_WARNING("sdp_snd_service_search_req cont_len :%d disc_state:%d",cont_len, p_ccb->disc_state);
177 L2CA_DataWrite (p_ccb->connection_id, p_cmd);
179 /* Start inactivity timer */
180 alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
181 sdp_conn_timer_timeout, p_ccb, btu_general_alarm_queue);
184 /*******************************************************************************
186 ** Function sdp_disc_connected
188 ** Description This function is called when an SDP discovery attempt is
193 *******************************************************************************/
194 void sdp_disc_connected (tCONN_CB *p_ccb)
196 if (p_ccb->is_attr_search)
198 p_ccb->disc_state = SDP_DISC_WAIT_SEARCH_ATTR;
200 process_service_search_attr_rsp(p_ccb, NULL, NULL);
204 /* First step is to get a list of the handles from the server. */
205 /* We are not searching for a specific attribute, so we will */
206 /* first search for the service, then get all attributes of it */
208 p_ccb->num_handles = 0;
209 sdp_snd_service_search_req(p_ccb, 0, NULL);
214 /*******************************************************************************
216 ** Function sdp_disc_server_rsp
218 ** Description This function is called when there is a response from
223 *******************************************************************************/
224 void sdp_disc_server_rsp (tCONN_CB *p_ccb, BT_HDR *p_msg)
227 BOOLEAN invalid_pdu = TRUE;
229 #if (SDP_DEBUG_RAW == TRUE)
230 SDP_TRACE_WARNING("sdp_disc_server_rsp disc_state:%d", p_ccb->disc_state);
233 /* stop inactivity timer when we receive a response */
234 alarm_cancel(p_ccb->sdp_conn_timer);
236 /* Got a reply!! Check what we got back */
237 p = (UINT8 *)(p_msg + 1) + p_msg->offset;
238 uint8_t* p_end = p + p_msg->len;
240 BE_STREAM_TO_UINT8 (rsp_pdu, p);
246 case SDP_PDU_SERVICE_SEARCH_RSP:
247 if (p_ccb->disc_state == SDP_DISC_WAIT_HANDLES)
249 process_service_search_rsp(p_ccb, p, p_end);
254 case SDP_PDU_SERVICE_ATTR_RSP:
255 if (p_ccb->disc_state == SDP_DISC_WAIT_ATTR)
257 process_service_attr_rsp(p_ccb, p, p_end);
262 case SDP_PDU_SERVICE_SEARCH_ATTR_RSP:
263 if (p_ccb->disc_state == SDP_DISC_WAIT_SEARCH_ATTR)
265 process_service_search_attr_rsp(p_ccb, p, p_end);
273 SDP_TRACE_WARNING ("SDP - Unexp. PDU: %d in state: %d", rsp_pdu, p_ccb->disc_state);
274 sdp_disconnect (p_ccb, SDP_GENERIC_ERROR);
278 /******************************************************************************
280 ** Function process_service_search_rsp
282 ** Description This function is called when there is a search response from
287 *******************************************************************************/
288 static void process_service_search_rsp(tCONN_CB *p_ccb, UINT8 *p_reply,
289 uint8_t* p_reply_end) {
291 UINT16 total, cur_handles, orig;
294 /* Skip transaction, and param len */
296 BE_STREAM_TO_UINT16 (total, p_reply);
297 BE_STREAM_TO_UINT16 (cur_handles, p_reply);
299 orig = p_ccb->num_handles;
300 p_ccb->num_handles += cur_handles;
301 if (p_ccb->num_handles == 0)
303 SDP_TRACE_WARNING ("SDP - Rcvd ServiceSearchRsp, no matches");
304 sdp_disconnect (p_ccb, SDP_NO_RECS_MATCH);
308 /* Save the handles that match. We will can only process a certain number. */
309 if (total > sdp_cb.max_recs_per_search)
310 total = sdp_cb.max_recs_per_search;
311 if (p_ccb->num_handles > sdp_cb.max_recs_per_search)
312 p_ccb->num_handles = sdp_cb.max_recs_per_search;
314 for (xx = orig; xx < p_ccb->num_handles; xx++)
315 BE_STREAM_TO_UINT32 (p_ccb->handles[xx], p_reply);
317 BE_STREAM_TO_UINT8 (cont_len, p_reply);
320 if(cont_len > SDP_MAX_CONTINUATION_LEN)
322 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
325 if (p_reply + cont_len > p_reply_end) {
326 android_errorWriteLog(0x534e4554, "68161546");
327 sdp_disconnect(p_ccb, SDP_INVALID_CONT_STATE);
330 /* stay in the same state */
331 sdp_snd_service_search_req(p_ccb, cont_len, p_reply);
336 p_ccb->disc_state = SDP_DISC_WAIT_ATTR;
338 /* Kick off the first attribute request */
339 process_service_attr_rsp(p_ccb, NULL, NULL);
343 /*******************************************************************************
345 ** Function sdp_copy_raw_data
347 ** Description copy the raw data
352 *******************************************************************************/
353 #if (SDP_RAW_DATA_INCLUDED == TRUE)
354 static void sdp_copy_raw_data (tCONN_CB *p_ccb, BOOLEAN offset)
356 unsigned int cpy_len, rem_len;
361 #if (SDP_DEBUG_RAW == TRUE)
362 UINT8 num_array[SDP_MAX_LIST_BYTE_COUNT];
365 for (i = 0; i < p_ccb->list_len; i++)
367 sprintf((char *)&num_array[i*2],"%02X",(UINT8)(p_ccb->rsp_list[i]));
369 SDP_TRACE_WARNING("result :%s",num_array);
372 if(p_ccb->p_db->raw_data)
374 cpy_len = p_ccb->p_db->raw_size - p_ccb->p_db->raw_used;
375 list_len = p_ccb->list_len;
376 p = &p_ccb->rsp_list[0];
381 p = sdpu_get_len_from_type (p, type, &list_len);
383 if(list_len < cpy_len )
387 rem_len = SDP_MAX_LIST_BYTE_COUNT - (unsigned int)(p - &p_ccb->rsp_list[0]);
388 if (cpy_len > rem_len) {
389 SDP_TRACE_WARNING("rem_len :%d less than cpy_len:%d", rem_len, cpy_len);
392 #if (SDP_DEBUG_RAW == TRUE)
393 SDP_TRACE_WARNING("list_len :%d cpy_len:%d raw_size:%d raw_used:%d",
394 list_len, cpy_len, p_ccb->p_db->raw_size, p_ccb->p_db->raw_used);
396 memcpy (&p_ccb->p_db->raw_data[p_ccb->p_db->raw_used], p, cpy_len);
397 p_ccb->p_db->raw_used += cpy_len;
402 /*******************************************************************************
404 ** Function process_service_attr_rsp
406 ** Description This function is called when there is a attribute response from
411 *******************************************************************************/
412 static void process_service_attr_rsp(tCONN_CB *p_ccb, UINT8 *p_reply,
413 uint8_t* p_reply_end) {
414 UINT8 *p_start, *p_param_len;
415 UINT16 param_len, list_byte_count;
416 BOOLEAN cont_request_needed = FALSE;
418 #if (SDP_DEBUG_RAW == TRUE)
419 SDP_TRACE_WARNING("process_service_attr_rsp raw inc:%d",
420 SDP_RAW_DATA_INCLUDED);
422 /* If p_reply is NULL, we were called after the records handles were read */
425 #if (SDP_DEBUG_RAW == TRUE)
426 SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
427 p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
429 /* Skip transaction ID and length */
432 BE_STREAM_TO_UINT16 (list_byte_count, p_reply);
433 #if (SDP_DEBUG_RAW == TRUE)
434 SDP_TRACE_WARNING("list_byte_count:%d", list_byte_count);
437 /* Copy the response to the scratchpad. First, a safety check on the length */
438 if ((p_ccb->list_len + list_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
440 sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
444 #if (SDP_DEBUG_RAW == TRUE)
445 SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
446 p_ccb->list_len, list_byte_count);
448 if (p_ccb->rsp_list == NULL)
449 p_ccb->rsp_list = (UINT8 *)osi_malloc(SDP_MAX_LIST_BYTE_COUNT);
450 memcpy(&p_ccb->rsp_list[p_ccb->list_len], p_reply, list_byte_count);
451 p_ccb->list_len += list_byte_count;
452 p_reply += list_byte_count;
453 #if (SDP_DEBUG_RAW == TRUE)
454 SDP_TRACE_WARNING("list_len: %d(attr_rsp)", p_ccb->list_len);
456 /* Check if we need to request a continuation */
457 SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
461 if (*p_reply > SDP_MAX_CONTINUATION_LEN)
463 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
466 cont_request_needed = TRUE;
471 #if (SDP_RAW_DATA_INCLUDED == TRUE)
472 SDP_TRACE_WARNING("process_service_attr_rsp");
473 sdp_copy_raw_data (p_ccb, FALSE);
476 /* Save the response in the database. Stop on any error */
477 if (!save_attr_seq (p_ccb, &p_ccb->rsp_list[0], &p_ccb->rsp_list[p_ccb->list_len]))
479 sdp_disconnect (p_ccb, SDP_DB_FULL);
487 /* Now, ask for the next handle. Re-use the buffer we just got. */
488 if (p_ccb->cur_handle < p_ccb->num_handles)
490 BT_HDR *p_msg = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
493 p_msg->offset = L2CAP_MIN_OFFSET;
494 p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
496 /* Get all the attributes from the server */
497 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_ATTR_REQ);
498 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
499 p_ccb->transaction_id++;
501 /* Skip the length, we need to add it at the end */
505 UINT32_TO_BE_STREAM (p, p_ccb->handles[p_ccb->cur_handle]);
507 /* Max attribute byte count */
508 UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
510 /* If no attribute filters, build a wildcard attribute sequence */
511 if (p_ccb->p_db->num_attr_filters)
512 p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
514 p = sdpu_build_attrib_seq (p, NULL, 0);
516 /* Was this a continuation request ? */
517 if (cont_request_needed)
519 if ((p_reply + *p_reply + 1) <= p_reply_end) {
520 memcpy(p, p_reply, *p_reply + 1);
523 android_errorWriteLog(0x534e4554, "68161546");
527 UINT8_TO_BE_STREAM (p, 0);
529 /* Go back and put the parameter length into the buffer */
530 param_len = (UINT16)(p - p_param_len - 2);
531 UINT16_TO_BE_STREAM (p_param_len, param_len);
533 /* Set the length of the SDP data in the buffer */
534 p_msg->len = (UINT16)(p - p_start);
537 L2CA_DataWrite (p_ccb->connection_id, p_msg);
539 /* Start inactivity timer */
540 alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
541 sdp_conn_timer_timeout, p_ccb,
542 btu_general_alarm_queue);
546 sdp_disconnect (p_ccb, SDP_SUCCESS);
552 /*******************************************************************************
554 ** Function process_service_search_attr_rsp
556 ** Description This function is called when there is a search attribute
557 ** response from the server.
561 *******************************************************************************/
562 static void process_service_search_attr_rsp(tCONN_CB *p_ccb, UINT8 *p_reply,
563 uint8_t* p_reply_end) {
564 UINT8 *p, *p_start, *p_end, *p_param_len;
567 UINT16 param_len, lists_byte_count = 0;
568 BOOLEAN cont_request_needed = FALSE;
570 #if (SDP_DEBUG_RAW == TRUE)
571 SDP_TRACE_WARNING("process_service_search_attr_rsp");
573 /* If p_reply is NULL, we were called for the initial read */
576 if (p_reply + 4 /* transaction ID and length */ + sizeof(lists_byte_count) >
578 android_errorWriteLog(0x534e4554, "79884292");
579 sdp_disconnect(p_ccb, SDP_INVALID_PDU_SIZE);
583 #if (SDP_DEBUG_RAW == TRUE)
584 SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
585 p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
587 /* Skip transaction ID and length */
590 BE_STREAM_TO_UINT16 (lists_byte_count, p_reply);
591 #if (SDP_DEBUG_RAW == TRUE)
592 SDP_TRACE_WARNING("lists_byte_count:%d", lists_byte_count);
595 /* Copy the response to the scratchpad. First, a safety check on the length */
596 if ((p_ccb->list_len + lists_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
598 sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
602 #if (SDP_DEBUG_RAW == TRUE)
603 SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
604 p_ccb->list_len, lists_byte_count);
607 if (p_reply + lists_byte_count + 1 /* continuation */ > p_reply_end) {
608 android_errorWriteLog(0x534e4554, "79884292");
609 sdp_disconnect(p_ccb, SDP_INVALID_PDU_SIZE);
613 if (p_ccb->rsp_list == NULL)
614 p_ccb->rsp_list = (UINT8 *)osi_malloc(SDP_MAX_LIST_BYTE_COUNT);
615 memcpy (&p_ccb->rsp_list[p_ccb->list_len], p_reply, lists_byte_count);
616 p_ccb->list_len += lists_byte_count;
617 p_reply += lists_byte_count;
618 #if (SDP_DEBUG_RAW == TRUE)
619 SDP_TRACE_WARNING("list_len: %d(search_attr_rsp)", p_ccb->list_len);
621 /* Check if we need to request a continuation */
622 SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
626 if (*p_reply > SDP_MAX_CONTINUATION_LEN)
628 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
632 cont_request_needed = TRUE;
636 #if (SDP_DEBUG_RAW == TRUE)
637 SDP_TRACE_WARNING("cont_request_needed:%d", cont_request_needed);
639 /* If continuation request (or first time request) */
640 if ((cont_request_needed) || (!p_reply))
642 BT_HDR *p_msg = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
645 p_msg->offset = L2CAP_MIN_OFFSET;
646 p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
648 /* Build a service search request packet */
649 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_SEARCH_ATTR_REQ);
650 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
651 p_ccb->transaction_id++;
653 /* Skip the length, we need to add it at the end */
657 /* Build the UID sequence. */
658 #if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
659 p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
661 p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
664 /* Max attribute byte count */
665 UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
667 /* If no attribute filters, build a wildcard attribute sequence */
668 if (p_ccb->p_db->num_attr_filters)
669 p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
671 p = sdpu_build_attrib_seq (p, NULL, 0);
673 /* No continuation for first request */
676 if ((p_reply + *p_reply + 1) <= p_reply_end) {
677 memcpy(p, p_reply, *p_reply + 1);
680 android_errorWriteLog(0x534e4554, "68161546");
684 UINT8_TO_BE_STREAM (p, 0);
686 /* Go back and put the parameter length into the buffer */
687 param_len = p - p_param_len - 2;
688 UINT16_TO_BE_STREAM (p_param_len, param_len);
690 /* Set the length of the SDP data in the buffer */
691 p_msg->len = p - p_start;
694 L2CA_DataWrite (p_ccb->connection_id, p_msg);
696 /* Start inactivity timer */
697 alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
698 sdp_conn_timer_timeout, p_ccb,
699 btu_general_alarm_queue);
705 /*******************************************************************/
706 /* We now have the full response, which is a sequence of sequences */
707 /*******************************************************************/
709 #if (SDP_RAW_DATA_INCLUDED == TRUE)
710 SDP_TRACE_WARNING("process_service_search_attr_rsp");
711 sdp_copy_raw_data (p_ccb, TRUE);
714 p = &p_ccb->rsp_list[0];
716 /* The contents is a sequence of attribute sequences */
719 if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
721 SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
724 p = sdpu_get_len_from_type (p, type, &seq_len);
726 p_end = &p_ccb->rsp_list[p_ccb->list_len];
728 if ((p + seq_len) != p_end)
730 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
736 p = save_attr_seq (p_ccb, p, &p_ccb->rsp_list[p_ccb->list_len]);
739 sdp_disconnect (p_ccb, SDP_DB_FULL);
744 /* Since we got everything we need, disconnect the call */
745 sdp_disconnect (p_ccb, SDP_SUCCESS);
748 /*******************************************************************************
750 ** Function save_attr_seq
752 ** Description This function is called when there is a response from
755 ** Returns pointer to next byte or NULL if error
757 *******************************************************************************/
758 static UINT8 *save_attr_seq (tCONN_CB *p_ccb, UINT8 *p, UINT8 *p_msg_end)
760 UINT32 seq_len, attr_len;
762 UINT8 type, *p_seq_end;
763 tSDP_DISC_REC *p_rec;
767 if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
769 SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
773 p = sdpu_get_len_from_type (p, type, &seq_len);
774 if ((p + seq_len) > p_msg_end)
776 SDP_TRACE_WARNING ("SDP - Bad len in attr_rsp %d", seq_len);
780 /* Create a record */
781 p_rec = add_record (p_ccb->p_db, p_ccb->device_address);
784 SDP_TRACE_WARNING ("SDP - DB full add_record");
788 p_seq_end = p + seq_len;
790 while (p < p_seq_end)
792 /* First get the attribute ID */
794 p = sdpu_get_len_from_type (p, type, &attr_len);
795 if (((type >> 3) != UINT_DESC_TYPE) || (attr_len != 2))
797 SDP_TRACE_WARNING ("SDP - Bad type: 0x%02x or len: %d in attr_rsp", type, attr_len);
800 BE_STREAM_TO_UINT16 (attr_id, p);
802 /* Now, add the attribute value */
803 p = add_attr (p, p_ccb->p_db, p_rec, attr_id, NULL, 0);
807 SDP_TRACE_WARNING ("SDP - DB full add_attr");
816 /*******************************************************************************
818 ** Function add_record
820 ** Description This function allocates space for a record from the DB.
822 ** Returns pointer to next byte in data stream
824 *******************************************************************************/
825 tSDP_DISC_REC *add_record (tSDP_DISCOVERY_DB *p_db, BD_ADDR p_bda)
827 tSDP_DISC_REC *p_rec;
829 /* See if there is enough space in the database */
830 if (p_db->mem_free < sizeof (tSDP_DISC_REC))
833 p_rec = (tSDP_DISC_REC *) p_db->p_free_mem;
834 p_db->p_free_mem += sizeof (tSDP_DISC_REC);
835 p_db->mem_free -= sizeof (tSDP_DISC_REC);
837 p_rec->p_first_attr = NULL;
838 p_rec->p_next_rec = NULL;
840 memcpy (p_rec->remote_bd_addr, p_bda, BD_ADDR_LEN);
842 /* Add the record to the end of chain */
843 if (!p_db->p_first_rec)
844 p_db->p_first_rec = p_rec;
847 tSDP_DISC_REC *p_rec1 = p_db->p_first_rec;
849 while (p_rec1->p_next_rec)
850 p_rec1 = p_rec1->p_next_rec;
852 p_rec1->p_next_rec = p_rec;
858 #define SDP_ADDITIONAL_LIST_MASK 0x80
859 /*******************************************************************************
863 ** Description This function allocates space for an attribute from the DB
864 ** and copies the data into it.
866 ** Returns pointer to next byte in data stream
868 *******************************************************************************/
869 static UINT8 *add_attr (UINT8 *p, tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_rec,
870 UINT16 attr_id, tSDP_DISC_ATTR *p_parent_attr, UINT8 nest_level)
872 tSDP_DISC_ATTR *p_attr;
879 UINT8 is_additional_list = nest_level & SDP_ADDITIONAL_LIST_MASK;
881 nest_level &= ~(SDP_ADDITIONAL_LIST_MASK);
884 p = sdpu_get_len_from_type (p, type, &attr_len);
886 attr_len &= SDP_DISC_ATTR_LEN_MASK;
887 attr_type = (type >> 3) & 0x0f;
889 /* See if there is enough space in the database */
891 total_len = attr_len - 4 + (UINT16)sizeof (tSDP_DISC_ATTR);
893 total_len = sizeof (tSDP_DISC_ATTR);
895 /* Ensure it is a multiple of 4 */
896 total_len = (total_len + 3) & ~3;
898 /* See if there is enough space in the database */
899 if (p_db->mem_free < total_len)
902 p_attr = (tSDP_DISC_ATTR *) p_db->p_free_mem;
903 p_attr->attr_id = attr_id;
904 p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
905 p_attr->p_next_attr = NULL;
907 /* Store the attribute value */
911 if( (is_additional_list != 0) && (attr_len == 2) )
913 BE_STREAM_TO_UINT16 (id, p);
914 if(id != ATTR_ID_PROTOCOL_DESC_LIST)
918 /* Reserve the memory for the attribute now, as we need to add sub-attributes */
919 p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
920 p_db->mem_free -= sizeof (tSDP_DISC_ATTR);
921 p_end = p + attr_len;
924 /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d(list)", nest_level); */
925 if (nest_level >= MAX_NEST_LEVELS)
927 SDP_TRACE_ERROR ("SDP - attr nesting too deep");
931 /* Now, add the list entry */
932 p = add_attr (p, p_db, p_rec, ATTR_ID_PROTOCOL_DESC_LIST, p_attr, (UINT8)(nest_level + 1));
937 /* Case falls through */
939 case TWO_COMP_INT_DESC_TYPE:
943 p_attr->attr_value.v.u8 = *p++;
946 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
949 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
952 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
961 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
964 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
965 if (p_attr->attr_value.v.u32 < 0x10000)
968 p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
969 p_attr->attr_value.v.u16 = (UINT16) p_attr->attr_value.v.u32;
974 /* See if we can compress his UUID down to 16 or 32bit UUIDs */
975 if (sdpu_is_base_uuid (p))
977 if ((p[0] == 0) && (p[1] == 0))
979 p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 2;
981 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
982 p += MAX_UUID_SIZE - 4;
986 p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 4;
987 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
988 p += MAX_UUID_SIZE - 4;
993 /* coverity[overrun-local] */
995 Event overrun-local: Overrun of static array "p_attr->attr_value.v.array" of size 4 at position 15 with index variable "ijk"
996 False-positive: SDP uses scratch buffer to hold the attribute value.
997 The actual size of tSDP_DISC_ATVAL does not matter.
998 If the array size in tSDP_DISC_ATVAL is increase, we would increase the system RAM usage unnecessarily
1000 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
1004 SDP_TRACE_WARNING ("SDP - bad len in UUID attr: %d", attr_len);
1005 return (p + attr_len);
1009 case DATA_ELE_SEQ_DESC_TYPE:
1010 case DATA_ELE_ALT_DESC_TYPE:
1011 /* Reserve the memory for the attribute now, as we need to add sub-attributes */
1012 p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
1013 p_db->mem_free -= sizeof (tSDP_DISC_ATTR);
1014 p_end = p + attr_len;
1017 /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d", nest_level); */
1018 if (nest_level >= MAX_NEST_LEVELS)
1020 SDP_TRACE_ERROR ("SDP - attr nesting too deep");
1023 if(is_additional_list != 0 || attr_id == ATTR_ID_ADDITION_PROTO_DESC_LISTS)
1024 nest_level |= SDP_ADDITIONAL_LIST_MASK;
1025 /* SDP_TRACE_DEBUG ("SDP - attr nest level:0x%x(finish)", nest_level); */
1029 /* Now, add the list entry */
1030 p = add_attr (p, p_db, p_rec, 0, p_attr, (UINT8)(nest_level + 1));
1037 case TEXT_STR_DESC_TYPE:
1039 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
1042 case BOOLEAN_DESC_TYPE:
1046 p_attr->attr_value.v.u8 = *p++;
1049 SDP_TRACE_WARNING ("SDP - bad len in boolean attr: %d", attr_len);
1050 return (p + attr_len);
1054 default: /* switch (attr_type) */
1058 p_db->p_free_mem += total_len;
1059 p_db->mem_free -= total_len;
1061 /* Add the attribute to the end of the chain */
1064 if (!p_rec->p_first_attr)
1065 p_rec->p_first_attr = p_attr;
1068 tSDP_DISC_ATTR *p_attr1 = p_rec->p_first_attr;
1070 while (p_attr1->p_next_attr)
1071 p_attr1 = p_attr1->p_next_attr;
1073 p_attr1->p_next_attr = p_attr;
1078 if (!p_parent_attr->attr_value.v.p_sub_attr)
1080 p_parent_attr->attr_value.v.p_sub_attr = p_attr;
1081 /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch:0x%x(id:%d)",
1082 p_parent_attr, p_parent_attr->attr_id, p_attr, p_attr->attr_id); */
1086 tSDP_DISC_ATTR *p_attr1 = p_parent_attr->attr_value.v.p_sub_attr;
1087 /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch1:0x%x(id:%d)",
1088 p_parent_attr, p_parent_attr->attr_id, p_attr1, p_attr1->attr_id); */
1090 while (p_attr1->p_next_attr)
1091 p_attr1 = p_attr1->p_next_attr;
1093 p_attr1->p_next_attr = p_attr;
1094 /* SDP_TRACE_DEBUG ("new ch:0x%x(id:%d)", p_attr, p_attr->attr_id); */
1101 #endif /* CLIENT_ENABLED == TRUE */