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"
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
64 /*******************************************************************************
66 ** Function sdpu_build_uuid_seq
68 ** Description This function builds a UUID sequence from the list of
69 ** passed UUIDs. It is also passed the address of the output
72 ** Returns Pointer to next byte in the output buffer.
74 *******************************************************************************/
75 static UINT8 *sdpu_build_uuid_seq (UINT8 *p_out, UINT16 num_uuids, tSDP_UUID *p_uuid_list)
80 /* First thing is the data element header */
81 UINT8_TO_BE_STREAM (p_out, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
83 /* Remember where the length goes. Leave space for it. */
87 /* Now, loop through and put in all the UUID(s) */
88 for (xx = 0; xx < num_uuids; xx++, p_uuid_list++)
90 if (p_uuid_list->len == 2)
92 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
93 UINT16_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid16);
95 else if (p_uuid_list->len == 4)
97 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_FOUR_BYTES);
98 UINT32_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid32);
102 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_SIXTEEN_BYTES);
103 ARRAY_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid128, p_uuid_list->len);
107 /* Now, put in the length */
108 xx = (UINT16)(p_out - p_len - 1);
109 UINT8_TO_BE_STREAM (p_len, xx);
114 /*******************************************************************************
116 ** Function sdp_snd_service_search_req
118 ** Description Send a service search request to the SDP server.
122 *******************************************************************************/
123 static void sdp_snd_service_search_req(tCONN_CB *p_ccb, UINT8 cont_len, UINT8 * p_cont)
125 UINT8 *p, *p_start, *p_param_len;
129 /* Get a buffer to send the packet to L2CAP */
130 if ((p_cmd = (BT_HDR *) GKI_getpoolbuf (SDP_POOL_ID)) == NULL)
132 sdp_disconnect (p_ccb, SDP_NO_RESOURCES);
136 p_cmd->offset = L2CAP_MIN_OFFSET;
137 p = p_start = (UINT8 *)(p_cmd + 1) + L2CAP_MIN_OFFSET;
139 /* Build a service search request packet */
140 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_SEARCH_REQ);
141 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
142 p_ccb->transaction_id++;
144 /* Skip the length, we need to add it at the end */
148 /* Build the UID sequence. */
149 #if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
150 p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
152 p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
155 /* Set max service record count */
156 UINT16_TO_BE_STREAM (p, sdp_cb.max_recs_per_search);
158 /* Set continuation state */
159 UINT8_TO_BE_STREAM (p, cont_len);
161 /* if this is not the first request */
162 if(cont_len && p_cont)
164 memcpy(p, p_cont, cont_len);
168 /* Go back and put the parameter length into the buffer */
169 param_len = (UINT16)(p - p_param_len - 2);
170 UINT16_TO_BE_STREAM (p_param_len, param_len);
172 p_ccb->disc_state = SDP_DISC_WAIT_HANDLES;
174 /* Set the length of the SDP data in the buffer */
175 p_cmd->len = (UINT16)(p - p_start);
177 #if (SDP_DEBUG_RAW == TRUE)
178 SDP_TRACE_WARNING("sdp_snd_service_search_req cont_len :%d disc_state:%d",cont_len, p_ccb->disc_state);
182 L2CA_DataWrite (p_ccb->connection_id, p_cmd);
184 /* Start inactivity timer */
185 btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_SDP, SDP_INACT_TIMEOUT);
189 /*******************************************************************************
191 ** Function sdp_disc_connected
193 ** Description This function is called when an SDP discovery attempt is
198 *******************************************************************************/
199 void sdp_disc_connected (tCONN_CB *p_ccb)
201 if (p_ccb->is_attr_search)
203 p_ccb->disc_state = SDP_DISC_WAIT_SEARCH_ATTR;
205 process_service_search_attr_rsp(p_ccb, NULL, NULL);
209 /* First step is to get a list of the handles from the server. */
210 /* We are not searching for a specific attribute, so we will */
211 /* first search for the service, then get all attributes of it */
213 p_ccb->num_handles = 0;
214 sdp_snd_service_search_req(p_ccb, 0, NULL);
219 /*******************************************************************************
221 ** Function sdp_disc_server_rsp
223 ** Description This function is called when there is a response from
228 *******************************************************************************/
229 void sdp_disc_server_rsp (tCONN_CB *p_ccb, BT_HDR *p_msg)
232 BOOLEAN invalid_pdu = TRUE;
234 #if (SDP_DEBUG_RAW == TRUE)
235 SDP_TRACE_WARNING("sdp_disc_server_rsp disc_state:%d", p_ccb->disc_state);
238 /* stop inactivity timer when we receive a response */
239 btu_stop_timer (&p_ccb->timer_entry);
241 /* Got a reply!! Check what we got back */
242 p = (UINT8 *)(p_msg + 1) + p_msg->offset;
243 uint8_t* p_end = p + p_msg->len;
245 BE_STREAM_TO_UINT8 (rsp_pdu, p);
251 case SDP_PDU_SERVICE_SEARCH_RSP:
252 if (p_ccb->disc_state == SDP_DISC_WAIT_HANDLES)
254 process_service_search_rsp(p_ccb, p, p_end);
259 case SDP_PDU_SERVICE_ATTR_RSP:
260 if (p_ccb->disc_state == SDP_DISC_WAIT_ATTR)
262 process_service_attr_rsp(p_ccb, p, p_end);
267 case SDP_PDU_SERVICE_SEARCH_ATTR_RSP:
268 if (p_ccb->disc_state == SDP_DISC_WAIT_SEARCH_ATTR)
270 process_service_search_attr_rsp(p_ccb, p, p_end);
278 SDP_TRACE_WARNING ("SDP - Unexp. PDU: %d in state: %d", rsp_pdu, p_ccb->disc_state);
279 sdp_disconnect (p_ccb, SDP_GENERIC_ERROR);
283 /******************************************************************************
285 ** Function process_service_search_rsp
287 ** Description This function is called when there is a search response from
292 *******************************************************************************/
293 static void process_service_search_rsp(tCONN_CB *p_ccb, UINT8 *p_reply,
294 uint8_t* p_reply_end) {
296 UINT16 total, cur_handles, orig;
299 /* Skip transaction, and param len */
301 BE_STREAM_TO_UINT16 (total, p_reply);
302 BE_STREAM_TO_UINT16 (cur_handles, p_reply);
304 orig = p_ccb->num_handles;
305 p_ccb->num_handles += cur_handles;
306 if (p_ccb->num_handles == 0)
308 SDP_TRACE_WARNING ("SDP - Rcvd ServiceSearchRsp, no matches");
309 sdp_disconnect (p_ccb, SDP_NO_RECS_MATCH);
313 /* Save the handles that match. We will can only process a certain number. */
314 if (total > sdp_cb.max_recs_per_search)
315 total = sdp_cb.max_recs_per_search;
316 if (p_ccb->num_handles > sdp_cb.max_recs_per_search)
317 p_ccb->num_handles = sdp_cb.max_recs_per_search;
319 for (xx = orig; xx < p_ccb->num_handles; xx++)
320 BE_STREAM_TO_UINT32 (p_ccb->handles[xx], p_reply);
322 BE_STREAM_TO_UINT8 (cont_len, p_reply);
325 if(cont_len > SDP_MAX_CONTINUATION_LEN)
327 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
330 if (p_reply + cont_len > p_reply_end) {
331 android_errorWriteLog(0x534e4554, "68161546");
332 sdp_disconnect(p_ccb, SDP_INVALID_CONT_STATE);
335 /* stay in the same state */
336 sdp_snd_service_search_req(p_ccb, cont_len, p_reply);
341 p_ccb->disc_state = SDP_DISC_WAIT_ATTR;
343 /* Kick off the first attribute request */
344 process_service_attr_rsp(p_ccb, NULL, NULL);
348 /*******************************************************************************
350 ** Function sdp_copy_raw_data
352 ** Description copy the raw data
357 *******************************************************************************/
358 #if (SDP_RAW_DATA_INCLUDED == TRUE)
359 static void sdp_copy_raw_data (tCONN_CB *p_ccb, BOOLEAN offset)
361 unsigned int cpy_len;
366 #if (SDP_DEBUG_RAW == TRUE)
367 UINT8 num_array[SDP_MAX_LIST_BYTE_COUNT];
370 for (i = 0; i < p_ccb->list_len; i++)
372 sprintf((char *)&num_array[i*2],"%02X",(UINT8)(p_ccb->rsp_list[i]));
374 SDP_TRACE_WARNING("result :%s",num_array);
377 if(p_ccb->p_db->raw_data)
379 cpy_len = p_ccb->p_db->raw_size - p_ccb->p_db->raw_used;
380 list_len = p_ccb->list_len;
381 p = &p_ccb->rsp_list[0];
386 p = sdpu_get_len_from_type (p, type, &list_len);
388 if(list_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)
450 p_ccb->rsp_list = (UINT8 *)GKI_getbuf (SDP_MAX_LIST_BYTE_COUNT);
451 if (p_ccb->rsp_list == NULL)
453 SDP_TRACE_ERROR ("SDP - no gki buf to save rsp");
454 sdp_disconnect (p_ccb, SDP_NO_RESOURCES);
458 memcpy (&p_ccb->rsp_list[p_ccb->list_len], p_reply, list_byte_count);
459 p_ccb->list_len += list_byte_count;
460 p_reply += list_byte_count;
461 #if (SDP_DEBUG_RAW == TRUE)
462 SDP_TRACE_WARNING("list_len: %d(attr_rsp)", p_ccb->list_len);
464 /* Check if we need to request a continuation */
465 SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
469 if (*p_reply > SDP_MAX_CONTINUATION_LEN)
471 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
474 cont_request_needed = TRUE;
479 #if (SDP_RAW_DATA_INCLUDED == TRUE)
480 SDP_TRACE_WARNING("process_service_attr_rsp");
481 sdp_copy_raw_data (p_ccb, FALSE);
484 /* Save the response in the database. Stop on any error */
485 if (!save_attr_seq (p_ccb, &p_ccb->rsp_list[0], &p_ccb->rsp_list[p_ccb->list_len]))
487 sdp_disconnect (p_ccb, SDP_DB_FULL);
495 /* Now, ask for the next handle. Re-use the buffer we just got. */
496 if (p_ccb->cur_handle < p_ccb->num_handles)
498 BT_HDR *p_msg = (BT_HDR *) GKI_getpoolbuf (SDP_POOL_ID);
503 sdp_disconnect (p_ccb, SDP_NO_RESOURCES);
507 p_msg->offset = L2CAP_MIN_OFFSET;
508 p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
510 /* Get all the attributes from the server */
511 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_ATTR_REQ);
512 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
513 p_ccb->transaction_id++;
515 /* Skip the length, we need to add it at the end */
519 UINT32_TO_BE_STREAM (p, p_ccb->handles[p_ccb->cur_handle]);
521 /* Max attribute byte count */
522 UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
524 /* If no attribute filters, build a wildcard attribute sequence */
525 if (p_ccb->p_db->num_attr_filters)
526 p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
528 p = sdpu_build_attrib_seq (p, NULL, 0);
530 /* Was this a continuation request ? */
531 if (cont_request_needed)
533 if ((p_reply + *p_reply + 1) <= p_reply_end) {
534 memcpy(p, p_reply, *p_reply + 1);
537 android_errorWriteLog(0x534e4554, "68161546");
541 UINT8_TO_BE_STREAM (p, 0);
543 /* Go back and put the parameter length into the buffer */
544 param_len = (UINT16)(p - p_param_len - 2);
545 UINT16_TO_BE_STREAM (p_param_len, param_len);
547 /* Set the length of the SDP data in the buffer */
548 p_msg->len = (UINT16)(p - p_start);
551 L2CA_DataWrite (p_ccb->connection_id, p_msg);
553 /* Start inactivity timer */
554 btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_SDP, SDP_INACT_TIMEOUT);
558 sdp_disconnect (p_ccb, SDP_SUCCESS);
564 /*******************************************************************************
566 ** Function process_service_search_attr_rsp
568 ** Description This function is called when there is a search attribute
569 ** response from the server.
573 *******************************************************************************/
574 static void process_service_search_attr_rsp(tCONN_CB *p_ccb, UINT8 *p_reply,
575 uint8_t* p_reply_end) {
576 UINT8 *p, *p_start, *p_end, *p_param_len;
579 UINT16 param_len, lists_byte_count = 0;
580 BOOLEAN cont_request_needed = FALSE;
582 #if (SDP_DEBUG_RAW == TRUE)
583 SDP_TRACE_WARNING("process_service_search_attr_rsp");
585 /* If p_reply is NULL, we were called for the initial read */
588 #if (SDP_DEBUG_RAW == TRUE)
589 SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
590 p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
592 /* Skip transaction ID and length */
595 BE_STREAM_TO_UINT16 (lists_byte_count, p_reply);
596 #if (SDP_DEBUG_RAW == TRUE)
597 SDP_TRACE_WARNING("lists_byte_count:%d", lists_byte_count);
600 /* Copy the response to the scratchpad. First, a safety check on the length */
601 if ((p_ccb->list_len + lists_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
603 sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
607 #if (SDP_DEBUG_RAW == TRUE)
608 SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
609 p_ccb->list_len, lists_byte_count);
611 if (p_ccb->rsp_list == NULL)
613 p_ccb->rsp_list = (UINT8 *)GKI_getbuf (SDP_MAX_LIST_BYTE_COUNT);
614 if (p_ccb->rsp_list == NULL)
616 SDP_TRACE_ERROR ("SDP - no gki buf to save rsp");
617 sdp_disconnect (p_ccb, SDP_NO_RESOURCES);
621 memcpy (&p_ccb->rsp_list[p_ccb->list_len], p_reply, lists_byte_count);
622 p_ccb->list_len += lists_byte_count;
623 p_reply += lists_byte_count;
624 #if (SDP_DEBUG_RAW == TRUE)
625 SDP_TRACE_WARNING("list_len: %d(search_attr_rsp)", p_ccb->list_len);
627 /* Check if we need to request a continuation */
628 SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
632 if (*p_reply > SDP_MAX_CONTINUATION_LEN)
634 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
638 cont_request_needed = TRUE;
642 #if (SDP_DEBUG_RAW == TRUE)
643 SDP_TRACE_WARNING("cont_request_needed:%d", cont_request_needed);
645 /* If continuation request (or first time request) */
646 if ((cont_request_needed) || (!p_reply))
648 BT_HDR *p_msg = (BT_HDR *) GKI_getpoolbuf (SDP_POOL_ID);
653 sdp_disconnect (p_ccb, SDP_NO_RESOURCES);
657 p_msg->offset = L2CAP_MIN_OFFSET;
658 p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
660 /* Build a service search request packet */
661 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_SEARCH_ATTR_REQ);
662 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
663 p_ccb->transaction_id++;
665 /* Skip the length, we need to add it at the end */
669 /* Build the UID sequence. */
670 #if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
671 p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
673 p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
676 /* Max attribute byte count */
677 UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
679 /* If no attribute filters, build a wildcard attribute sequence */
680 if (p_ccb->p_db->num_attr_filters)
681 p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
683 p = sdpu_build_attrib_seq (p, NULL, 0);
685 /* No continuation for first request */
688 if ((p_reply + *p_reply + 1) <= p_reply_end) {
689 memcpy(p, p_reply, *p_reply + 1);
692 android_errorWriteLog(0x534e4554, "68161546");
696 UINT8_TO_BE_STREAM (p, 0);
698 /* Go back and put the parameter length into the buffer */
699 param_len = p - p_param_len - 2;
700 UINT16_TO_BE_STREAM (p_param_len, param_len);
702 /* Set the length of the SDP data in the buffer */
703 p_msg->len = p - p_start;
706 L2CA_DataWrite (p_ccb->connection_id, p_msg);
708 /* Start inactivity timer */
709 btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_SDP, SDP_INACT_TIMEOUT);
715 /*******************************************************************/
716 /* We now have the full response, which is a sequence of sequences */
717 /*******************************************************************/
719 #if (SDP_RAW_DATA_INCLUDED == TRUE)
720 SDP_TRACE_WARNING("process_service_search_attr_rsp");
721 sdp_copy_raw_data (p_ccb, TRUE);
724 p = &p_ccb->rsp_list[0];
726 /* The contents is a sequence of attribute sequences */
729 if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
731 SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
734 p = sdpu_get_len_from_type (p, type, &seq_len);
736 p_end = &p_ccb->rsp_list[p_ccb->list_len];
738 if ((p + seq_len) != p_end)
740 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
746 p = save_attr_seq (p_ccb, p, &p_ccb->rsp_list[p_ccb->list_len]);
749 sdp_disconnect (p_ccb, SDP_DB_FULL);
754 /* Since we got everything we need, disconnect the call */
755 sdp_disconnect (p_ccb, SDP_SUCCESS);
758 /*******************************************************************************
760 ** Function save_attr_seq
762 ** Description This function is called when there is a response from
765 ** Returns pointer to next byte or NULL if error
767 *******************************************************************************/
768 static UINT8 *save_attr_seq (tCONN_CB *p_ccb, UINT8 *p, UINT8 *p_msg_end)
770 UINT32 seq_len, attr_len;
772 UINT8 type, *p_seq_end;
773 tSDP_DISC_REC *p_rec;
777 if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
779 SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
783 p = sdpu_get_len_from_type (p, type, &seq_len);
784 if ((p + seq_len) > p_msg_end)
786 SDP_TRACE_WARNING ("SDP - Bad len in attr_rsp %d", seq_len);
790 /* Create a record */
791 p_rec = add_record (p_ccb->p_db, p_ccb->device_address);
794 SDP_TRACE_WARNING ("SDP - DB full add_record");
798 p_seq_end = p + seq_len;
800 while (p < p_seq_end)
802 /* First get the attribute ID */
804 p = sdpu_get_len_from_type (p, type, &attr_len);
805 if (((type >> 3) != UINT_DESC_TYPE) || (attr_len != 2))
807 SDP_TRACE_WARNING ("SDP - Bad type: 0x%02x or len: %d in attr_rsp", type, attr_len);
810 BE_STREAM_TO_UINT16 (attr_id, p);
812 /* Now, add the attribute value */
813 p = add_attr (p, p_ccb->p_db, p_rec, attr_id, NULL, 0);
817 SDP_TRACE_WARNING ("SDP - DB full add_attr");
826 /*******************************************************************************
828 ** Function add_record
830 ** Description This function allocates space for a record from the DB.
832 ** Returns pointer to next byte in data stream
834 *******************************************************************************/
835 tSDP_DISC_REC *add_record (tSDP_DISCOVERY_DB *p_db, BD_ADDR p_bda)
837 tSDP_DISC_REC *p_rec;
839 /* See if there is enough space in the database */
840 if (p_db->mem_free < sizeof (tSDP_DISC_REC))
843 p_rec = (tSDP_DISC_REC *) p_db->p_free_mem;
844 p_db->p_free_mem += sizeof (tSDP_DISC_REC);
845 p_db->mem_free -= sizeof (tSDP_DISC_REC);
847 p_rec->p_first_attr = NULL;
848 p_rec->p_next_rec = NULL;
850 memcpy (p_rec->remote_bd_addr, p_bda, BD_ADDR_LEN);
852 /* Add the record to the end of chain */
853 if (!p_db->p_first_rec)
854 p_db->p_first_rec = p_rec;
857 tSDP_DISC_REC *p_rec1 = p_db->p_first_rec;
859 while (p_rec1->p_next_rec)
860 p_rec1 = p_rec1->p_next_rec;
862 p_rec1->p_next_rec = p_rec;
868 #define SDP_ADDITIONAL_LIST_MASK 0x80
869 /*******************************************************************************
873 ** Description This function allocates space for an attribute from the DB
874 ** and copies the data into it.
876 ** Returns pointer to next byte in data stream
878 *******************************************************************************/
879 static UINT8 *add_attr (UINT8 *p, tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_rec,
880 UINT16 attr_id, tSDP_DISC_ATTR *p_parent_attr, UINT8 nest_level)
882 tSDP_DISC_ATTR *p_attr;
889 UINT8 is_additional_list = nest_level & SDP_ADDITIONAL_LIST_MASK;
891 nest_level &= ~(SDP_ADDITIONAL_LIST_MASK);
894 p = sdpu_get_len_from_type (p, type, &attr_len);
896 attr_len &= SDP_DISC_ATTR_LEN_MASK;
897 attr_type = (type >> 3) & 0x0f;
899 /* See if there is enough space in the database */
901 total_len = attr_len - 4 + (UINT16)sizeof (tSDP_DISC_ATTR);
903 total_len = sizeof (tSDP_DISC_ATTR);
905 /* Ensure it is a multiple of 4 */
906 total_len = (total_len + 3) & ~3;
908 /* See if there is enough space in the database */
909 if (p_db->mem_free < total_len)
912 p_attr = (tSDP_DISC_ATTR *) p_db->p_free_mem;
913 p_attr->attr_id = attr_id;
914 p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
915 p_attr->p_next_attr = NULL;
917 /* Store the attribute value */
921 if( (is_additional_list != 0) && (attr_len == 2) )
923 BE_STREAM_TO_UINT16 (id, p);
924 if(id != ATTR_ID_PROTOCOL_DESC_LIST)
928 /* Reserve the memory for the attribute now, as we need to add sub-attributes */
929 p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
930 p_db->mem_free -= sizeof (tSDP_DISC_ATTR);
931 p_end = p + attr_len;
934 /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d(list)", nest_level); */
935 if (nest_level >= MAX_NEST_LEVELS)
937 SDP_TRACE_ERROR ("SDP - attr nesting too deep");
941 /* Now, add the list entry */
942 p = add_attr (p, p_db, p_rec, ATTR_ID_PROTOCOL_DESC_LIST, p_attr, (UINT8)(nest_level + 1));
947 /* Case falls through */
949 case TWO_COMP_INT_DESC_TYPE:
953 p_attr->attr_value.v.u8 = *p++;
956 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
959 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
962 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
971 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
974 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
975 if (p_attr->attr_value.v.u32 < 0x10000)
978 p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
979 p_attr->attr_value.v.u16 = (UINT16) p_attr->attr_value.v.u32;
984 /* See if we can compress his UUID down to 16 or 32bit UUIDs */
985 if (sdpu_is_base_uuid (p))
987 if ((p[0] == 0) && (p[1] == 0))
989 p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 2;
991 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
992 p += MAX_UUID_SIZE - 4;
996 p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 4;
997 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
998 p += MAX_UUID_SIZE - 4;
1003 /* coverity[overrun-local] */
1005 Event overrun-local: Overrun of static array "p_attr->attr_value.v.array" of size 4 at position 15 with index variable "ijk"
1006 False-positive: SDP uses scratch buffer to hold the attribute value.
1007 The actual size of tSDP_DISC_ATVAL does not matter.
1008 If the array size in tSDP_DISC_ATVAL is increase, we would increase the system RAM usage unnecessarily
1010 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
1014 SDP_TRACE_WARNING ("SDP - bad len in UUID attr: %d", attr_len);
1015 return (p + attr_len);
1019 case DATA_ELE_SEQ_DESC_TYPE:
1020 case DATA_ELE_ALT_DESC_TYPE:
1021 /* Reserve the memory for the attribute now, as we need to add sub-attributes */
1022 p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
1023 p_db->mem_free -= sizeof (tSDP_DISC_ATTR);
1024 p_end = p + attr_len;
1027 /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d", nest_level); */
1028 if (nest_level >= MAX_NEST_LEVELS)
1030 SDP_TRACE_ERROR ("SDP - attr nesting too deep");
1033 if(is_additional_list != 0 || attr_id == ATTR_ID_ADDITION_PROTO_DESC_LISTS)
1034 nest_level |= SDP_ADDITIONAL_LIST_MASK;
1035 /* SDP_TRACE_DEBUG ("SDP - attr nest level:0x%x(finish)", nest_level); */
1039 /* Now, add the list entry */
1040 p = add_attr (p, p_db, p_rec, 0, p_attr, (UINT8)(nest_level + 1));
1047 case TEXT_STR_DESC_TYPE:
1049 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
1052 case BOOLEAN_DESC_TYPE:
1056 p_attr->attr_value.v.u8 = *p++;
1059 SDP_TRACE_WARNING ("SDP - bad len in boolean attr: %d", attr_len);
1060 return (p + attr_len);
1064 default: /* switch (attr_type) */
1068 p_db->p_free_mem += total_len;
1069 p_db->mem_free -= total_len;
1071 /* Add the attribute to the end of the chain */
1074 if (!p_rec->p_first_attr)
1075 p_rec->p_first_attr = p_attr;
1078 tSDP_DISC_ATTR *p_attr1 = p_rec->p_first_attr;
1080 while (p_attr1->p_next_attr)
1081 p_attr1 = p_attr1->p_next_attr;
1083 p_attr1->p_next_attr = p_attr;
1088 if (!p_parent_attr->attr_value.v.p_sub_attr)
1090 p_parent_attr->attr_value.v.p_sub_attr = p_attr;
1091 /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch:0x%x(id:%d)",
1092 p_parent_attr, p_parent_attr->attr_id, p_attr, p_attr->attr_id); */
1096 tSDP_DISC_ATTR *p_attr1 = p_parent_attr->attr_value.v.p_sub_attr;
1097 /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch1:0x%x(id:%d)",
1098 p_parent_attr, p_parent_attr->attr_id, p_attr1, p_attr1->attr_id); */
1100 while (p_attr1->p_next_attr)
1101 p_attr1 = p_attr1->p_next_attr;
1103 p_attr1->p_next_attr = p_attr;
1104 /* SDP_TRACE_DEBUG ("new ch:0x%x(id:%d)", p_attr, p_attr->attr_id); */
1111 #endif /* CLIENT_ENABLED == TRUE */