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;
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 && list_len < cpy_len )
387 #if (SDP_DEBUG_RAW == TRUE)
388 SDP_TRACE_WARNING("list_len :%d cpy_len:%d raw_size:%d raw_used:%d",
389 list_len, cpy_len, p_ccb->p_db->raw_size, p_ccb->p_db->raw_used);
391 memcpy (&p_ccb->p_db->raw_data[p_ccb->p_db->raw_used], p, cpy_len);
392 p_ccb->p_db->raw_used += cpy_len;
397 /*******************************************************************************
399 ** Function process_service_attr_rsp
401 ** Description This function is called when there is a attribute response from
406 *******************************************************************************/
407 static void process_service_attr_rsp(tCONN_CB *p_ccb, UINT8 *p_reply,
408 uint8_t* p_reply_end) {
409 UINT8 *p_start, *p_param_len;
410 UINT16 param_len, list_byte_count;
411 BOOLEAN cont_request_needed = FALSE;
413 #if (SDP_DEBUG_RAW == TRUE)
414 SDP_TRACE_WARNING("process_service_attr_rsp raw inc:%d",
415 SDP_RAW_DATA_INCLUDED);
417 /* If p_reply is NULL, we were called after the records handles were read */
420 #if (SDP_DEBUG_RAW == TRUE)
421 SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
422 p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
424 /* Skip transaction ID and length */
427 BE_STREAM_TO_UINT16 (list_byte_count, p_reply);
428 #if (SDP_DEBUG_RAW == TRUE)
429 SDP_TRACE_WARNING("list_byte_count:%d", list_byte_count);
432 /* Copy the response to the scratchpad. First, a safety check on the length */
433 if ((p_ccb->list_len + list_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
435 sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
439 #if (SDP_DEBUG_RAW == TRUE)
440 SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
441 p_ccb->list_len, list_byte_count);
443 if (p_ccb->rsp_list == NULL)
444 p_ccb->rsp_list = (UINT8 *)osi_malloc(SDP_MAX_LIST_BYTE_COUNT);
445 memcpy(&p_ccb->rsp_list[p_ccb->list_len], p_reply, list_byte_count);
446 p_ccb->list_len += list_byte_count;
447 p_reply += list_byte_count;
448 #if (SDP_DEBUG_RAW == TRUE)
449 SDP_TRACE_WARNING("list_len: %d(attr_rsp)", p_ccb->list_len);
451 /* Check if we need to request a continuation */
452 SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
456 if (*p_reply > SDP_MAX_CONTINUATION_LEN)
458 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
461 cont_request_needed = TRUE;
466 #if (SDP_RAW_DATA_INCLUDED == TRUE)
467 SDP_TRACE_WARNING("process_service_attr_rsp");
468 sdp_copy_raw_data (p_ccb, FALSE);
471 /* Save the response in the database. Stop on any error */
472 if (!save_attr_seq (p_ccb, &p_ccb->rsp_list[0], &p_ccb->rsp_list[p_ccb->list_len]))
474 sdp_disconnect (p_ccb, SDP_DB_FULL);
482 /* Now, ask for the next handle. Re-use the buffer we just got. */
483 if (p_ccb->cur_handle < p_ccb->num_handles)
485 BT_HDR *p_msg = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
488 p_msg->offset = L2CAP_MIN_OFFSET;
489 p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
491 /* Get all the attributes from the server */
492 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_ATTR_REQ);
493 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
494 p_ccb->transaction_id++;
496 /* Skip the length, we need to add it at the end */
500 UINT32_TO_BE_STREAM (p, p_ccb->handles[p_ccb->cur_handle]);
502 /* Max attribute byte count */
503 UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
505 /* If no attribute filters, build a wildcard attribute sequence */
506 if (p_ccb->p_db->num_attr_filters)
507 p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
509 p = sdpu_build_attrib_seq (p, NULL, 0);
511 /* Was this a continuation request ? */
512 if (cont_request_needed)
514 if ((p_reply + *p_reply + 1) <= p_reply_end) {
515 memcpy(p, p_reply, *p_reply + 1);
518 android_errorWriteLog(0x534e4554, "68161546");
522 UINT8_TO_BE_STREAM (p, 0);
524 /* Go back and put the parameter length into the buffer */
525 param_len = (UINT16)(p - p_param_len - 2);
526 UINT16_TO_BE_STREAM (p_param_len, param_len);
528 /* Set the length of the SDP data in the buffer */
529 p_msg->len = (UINT16)(p - p_start);
532 L2CA_DataWrite (p_ccb->connection_id, p_msg);
534 /* Start inactivity timer */
535 alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
536 sdp_conn_timer_timeout, p_ccb,
537 btu_general_alarm_queue);
541 sdp_disconnect (p_ccb, SDP_SUCCESS);
547 /*******************************************************************************
549 ** Function process_service_search_attr_rsp
551 ** Description This function is called when there is a search attribute
552 ** response from the server.
556 *******************************************************************************/
557 static void process_service_search_attr_rsp(tCONN_CB *p_ccb, UINT8 *p_reply,
558 uint8_t* p_reply_end) {
559 UINT8 *p, *p_start, *p_end, *p_param_len;
562 UINT16 param_len, lists_byte_count = 0;
563 BOOLEAN cont_request_needed = FALSE;
565 #if (SDP_DEBUG_RAW == TRUE)
566 SDP_TRACE_WARNING("process_service_search_attr_rsp");
568 /* If p_reply is NULL, we were called for the initial read */
571 #if (SDP_DEBUG_RAW == TRUE)
572 SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
573 p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
575 /* Skip transaction ID and length */
578 BE_STREAM_TO_UINT16 (lists_byte_count, p_reply);
579 #if (SDP_DEBUG_RAW == TRUE)
580 SDP_TRACE_WARNING("lists_byte_count:%d", lists_byte_count);
583 /* Copy the response to the scratchpad. First, a safety check on the length */
584 if ((p_ccb->list_len + lists_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
586 sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
590 #if (SDP_DEBUG_RAW == TRUE)
591 SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
592 p_ccb->list_len, lists_byte_count);
594 if (p_ccb->rsp_list == NULL)
595 p_ccb->rsp_list = (UINT8 *)osi_malloc(SDP_MAX_LIST_BYTE_COUNT);
596 memcpy (&p_ccb->rsp_list[p_ccb->list_len], p_reply, lists_byte_count);
597 p_ccb->list_len += lists_byte_count;
598 p_reply += lists_byte_count;
599 #if (SDP_DEBUG_RAW == TRUE)
600 SDP_TRACE_WARNING("list_len: %d(search_attr_rsp)", p_ccb->list_len);
602 /* Check if we need to request a continuation */
603 SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
607 if (*p_reply > SDP_MAX_CONTINUATION_LEN)
609 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
613 cont_request_needed = TRUE;
617 #if (SDP_DEBUG_RAW == TRUE)
618 SDP_TRACE_WARNING("cont_request_needed:%d", cont_request_needed);
620 /* If continuation request (or first time request) */
621 if ((cont_request_needed) || (!p_reply))
623 BT_HDR *p_msg = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
626 p_msg->offset = L2CAP_MIN_OFFSET;
627 p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
629 /* Build a service search request packet */
630 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_SEARCH_ATTR_REQ);
631 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
632 p_ccb->transaction_id++;
634 /* Skip the length, we need to add it at the end */
638 /* Build the UID sequence. */
639 #if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
640 p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
642 p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
645 /* Max attribute byte count */
646 UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
648 /* If no attribute filters, build a wildcard attribute sequence */
649 if (p_ccb->p_db->num_attr_filters)
650 p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
652 p = sdpu_build_attrib_seq (p, NULL, 0);
654 /* No continuation for first request */
657 if ((p_reply + *p_reply + 1) <= p_reply_end) {
658 memcpy(p, p_reply, *p_reply + 1);
661 android_errorWriteLog(0x534e4554, "68161546");
665 UINT8_TO_BE_STREAM (p, 0);
667 /* Go back and put the parameter length into the buffer */
668 param_len = p - p_param_len - 2;
669 UINT16_TO_BE_STREAM (p_param_len, param_len);
671 /* Set the length of the SDP data in the buffer */
672 p_msg->len = p - p_start;
675 L2CA_DataWrite (p_ccb->connection_id, p_msg);
677 /* Start inactivity timer */
678 alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
679 sdp_conn_timer_timeout, p_ccb,
680 btu_general_alarm_queue);
686 /*******************************************************************/
687 /* We now have the full response, which is a sequence of sequences */
688 /*******************************************************************/
690 #if (SDP_RAW_DATA_INCLUDED == TRUE)
691 SDP_TRACE_WARNING("process_service_search_attr_rsp");
692 sdp_copy_raw_data (p_ccb, TRUE);
695 p = &p_ccb->rsp_list[0];
697 /* The contents is a sequence of attribute sequences */
700 if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
702 SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
705 p = sdpu_get_len_from_type (p, type, &seq_len);
707 p_end = &p_ccb->rsp_list[p_ccb->list_len];
709 if ((p + seq_len) != p_end)
711 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
717 p = save_attr_seq (p_ccb, p, &p_ccb->rsp_list[p_ccb->list_len]);
720 sdp_disconnect (p_ccb, SDP_DB_FULL);
725 /* Since we got everything we need, disconnect the call */
726 sdp_disconnect (p_ccb, SDP_SUCCESS);
729 /*******************************************************************************
731 ** Function save_attr_seq
733 ** Description This function is called when there is a response from
736 ** Returns pointer to next byte or NULL if error
738 *******************************************************************************/
739 static UINT8 *save_attr_seq (tCONN_CB *p_ccb, UINT8 *p, UINT8 *p_msg_end)
741 UINT32 seq_len, attr_len;
743 UINT8 type, *p_seq_end;
744 tSDP_DISC_REC *p_rec;
748 if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
750 SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
754 p = sdpu_get_len_from_type (p, type, &seq_len);
755 if ((p + seq_len) > p_msg_end)
757 SDP_TRACE_WARNING ("SDP - Bad len in attr_rsp %d", seq_len);
761 /* Create a record */
762 p_rec = add_record (p_ccb->p_db, p_ccb->device_address);
765 SDP_TRACE_WARNING ("SDP - DB full add_record");
769 p_seq_end = p + seq_len;
771 while (p < p_seq_end)
773 /* First get the attribute ID */
775 p = sdpu_get_len_from_type (p, type, &attr_len);
776 if (((type >> 3) != UINT_DESC_TYPE) || (attr_len != 2))
778 SDP_TRACE_WARNING ("SDP - Bad type: 0x%02x or len: %d in attr_rsp", type, attr_len);
781 BE_STREAM_TO_UINT16 (attr_id, p);
783 /* Now, add the attribute value */
784 p = add_attr (p, p_ccb->p_db, p_rec, attr_id, NULL, 0);
788 SDP_TRACE_WARNING ("SDP - DB full add_attr");
797 /*******************************************************************************
799 ** Function add_record
801 ** Description This function allocates space for a record from the DB.
803 ** Returns pointer to next byte in data stream
805 *******************************************************************************/
806 tSDP_DISC_REC *add_record (tSDP_DISCOVERY_DB *p_db, BD_ADDR p_bda)
808 tSDP_DISC_REC *p_rec;
810 /* See if there is enough space in the database */
811 if (p_db->mem_free < sizeof (tSDP_DISC_REC))
814 p_rec = (tSDP_DISC_REC *) p_db->p_free_mem;
815 p_db->p_free_mem += sizeof (tSDP_DISC_REC);
816 p_db->mem_free -= sizeof (tSDP_DISC_REC);
818 p_rec->p_first_attr = NULL;
819 p_rec->p_next_rec = NULL;
821 memcpy (p_rec->remote_bd_addr, p_bda, BD_ADDR_LEN);
823 /* Add the record to the end of chain */
824 if (!p_db->p_first_rec)
825 p_db->p_first_rec = p_rec;
828 tSDP_DISC_REC *p_rec1 = p_db->p_first_rec;
830 while (p_rec1->p_next_rec)
831 p_rec1 = p_rec1->p_next_rec;
833 p_rec1->p_next_rec = p_rec;
839 #define SDP_ADDITIONAL_LIST_MASK 0x80
840 /*******************************************************************************
844 ** Description This function allocates space for an attribute from the DB
845 ** and copies the data into it.
847 ** Returns pointer to next byte in data stream
849 *******************************************************************************/
850 static UINT8 *add_attr (UINT8 *p, tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_rec,
851 UINT16 attr_id, tSDP_DISC_ATTR *p_parent_attr, UINT8 nest_level)
853 tSDP_DISC_ATTR *p_attr;
860 UINT8 is_additional_list = nest_level & SDP_ADDITIONAL_LIST_MASK;
862 nest_level &= ~(SDP_ADDITIONAL_LIST_MASK);
865 p = sdpu_get_len_from_type (p, type, &attr_len);
867 attr_len &= SDP_DISC_ATTR_LEN_MASK;
868 attr_type = (type >> 3) & 0x0f;
870 /* See if there is enough space in the database */
872 total_len = attr_len - 4 + (UINT16)sizeof (tSDP_DISC_ATTR);
874 total_len = sizeof (tSDP_DISC_ATTR);
876 /* Ensure it is a multiple of 4 */
877 total_len = (total_len + 3) & ~3;
879 /* See if there is enough space in the database */
880 if (p_db->mem_free < total_len)
883 p_attr = (tSDP_DISC_ATTR *) p_db->p_free_mem;
884 p_attr->attr_id = attr_id;
885 p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
886 p_attr->p_next_attr = NULL;
888 /* Store the attribute value */
892 if( (is_additional_list != 0) && (attr_len == 2) )
894 BE_STREAM_TO_UINT16 (id, p);
895 if(id != ATTR_ID_PROTOCOL_DESC_LIST)
899 /* Reserve the memory for the attribute now, as we need to add sub-attributes */
900 p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
901 p_db->mem_free -= sizeof (tSDP_DISC_ATTR);
902 p_end = p + attr_len;
905 /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d(list)", nest_level); */
906 if (nest_level >= MAX_NEST_LEVELS)
908 SDP_TRACE_ERROR ("SDP - attr nesting too deep");
912 /* Now, add the list entry */
913 p = add_attr (p, p_db, p_rec, ATTR_ID_PROTOCOL_DESC_LIST, p_attr, (UINT8)(nest_level + 1));
918 /* Case falls through */
920 case TWO_COMP_INT_DESC_TYPE:
924 p_attr->attr_value.v.u8 = *p++;
927 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
930 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
933 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
942 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
945 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
946 if (p_attr->attr_value.v.u32 < 0x10000)
949 p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
950 p_attr->attr_value.v.u16 = (UINT16) p_attr->attr_value.v.u32;
955 /* See if we can compress his UUID down to 16 or 32bit UUIDs */
956 if (sdpu_is_base_uuid (p))
958 if ((p[0] == 0) && (p[1] == 0))
960 p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 2;
962 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
963 p += MAX_UUID_SIZE - 4;
967 p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 4;
968 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
969 p += MAX_UUID_SIZE - 4;
974 /* coverity[overrun-local] */
976 Event overrun-local: Overrun of static array "p_attr->attr_value.v.array" of size 4 at position 15 with index variable "ijk"
977 False-positive: SDP uses scratch buffer to hold the attribute value.
978 The actual size of tSDP_DISC_ATVAL does not matter.
979 If the array size in tSDP_DISC_ATVAL is increase, we would increase the system RAM usage unnecessarily
981 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
985 SDP_TRACE_WARNING ("SDP - bad len in UUID attr: %d", attr_len);
986 return (p + attr_len);
990 case DATA_ELE_SEQ_DESC_TYPE:
991 case DATA_ELE_ALT_DESC_TYPE:
992 /* Reserve the memory for the attribute now, as we need to add sub-attributes */
993 p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
994 p_db->mem_free -= sizeof (tSDP_DISC_ATTR);
995 p_end = p + attr_len;
998 /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d", nest_level); */
999 if (nest_level >= MAX_NEST_LEVELS)
1001 SDP_TRACE_ERROR ("SDP - attr nesting too deep");
1004 if(is_additional_list != 0 || attr_id == ATTR_ID_ADDITION_PROTO_DESC_LISTS)
1005 nest_level |= SDP_ADDITIONAL_LIST_MASK;
1006 /* SDP_TRACE_DEBUG ("SDP - attr nest level:0x%x(finish)", nest_level); */
1010 /* Now, add the list entry */
1011 p = add_attr (p, p_db, p_rec, 0, p_attr, (UINT8)(nest_level + 1));
1018 case TEXT_STR_DESC_TYPE:
1020 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
1023 case BOOLEAN_DESC_TYPE:
1027 p_attr->attr_value.v.u8 = *p++;
1030 SDP_TRACE_WARNING ("SDP - bad len in boolean attr: %d", attr_len);
1031 return (p + attr_len);
1035 default: /* switch (attr_type) */
1039 p_db->p_free_mem += total_len;
1040 p_db->mem_free -= total_len;
1042 /* Add the attribute to the end of the chain */
1045 if (!p_rec->p_first_attr)
1046 p_rec->p_first_attr = p_attr;
1049 tSDP_DISC_ATTR *p_attr1 = p_rec->p_first_attr;
1051 while (p_attr1->p_next_attr)
1052 p_attr1 = p_attr1->p_next_attr;
1054 p_attr1->p_next_attr = p_attr;
1059 if (!p_parent_attr->attr_value.v.p_sub_attr)
1061 p_parent_attr->attr_value.v.p_sub_attr = p_attr;
1062 /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch:0x%x(id:%d)",
1063 p_parent_attr, p_parent_attr->attr_id, p_attr, p_attr->attr_id); */
1067 tSDP_DISC_ATTR *p_attr1 = p_parent_attr->attr_value.v.p_sub_attr;
1068 /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch1:0x%x(id:%d)",
1069 p_parent_attr, p_parent_attr->attr_id, p_attr1, p_attr1->attr_id); */
1071 while (p_attr1->p_next_attr)
1072 p_attr1 = p_attr1->p_next_attr;
1074 p_attr1->p_next_attr = p_attr;
1075 /* SDP_TRACE_DEBUG ("new ch:0x%x(id:%d)", p_attr, p_attr->attr_id); */
1082 #endif /* CLIENT_ENABLED == TRUE */