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"
41 #define SDP_DEBUG_RAW FALSE
44 /********************************************************************************/
45 /* L O C A L F U N C T I O N P R O T O T Y P E S */
46 /********************************************************************************/
47 #if SDP_CLIENT_ENABLED == TRUE
48 static void process_service_search_rsp (tCONN_CB *p_ccb, UINT8 *p_reply);
49 static void process_service_attr_rsp (tCONN_CB *p_ccb, UINT8 *p_reply);
50 static void process_service_search_attr_rsp (tCONN_CB *p_ccb, UINT8 *p_reply);
51 static UINT8 *save_attr_seq (tCONN_CB *p_ccb, UINT8 *p, UINT8 *p_msg_end);
52 static tSDP_DISC_REC *add_record (tSDP_DISCOVERY_DB *p_db, BD_ADDR p_bda);
53 static UINT8 *add_attr (UINT8 *p, tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_rec,
54 UINT16 attr_id, tSDP_DISC_ATTR *p_parent_attr, UINT8 nest_level);
56 /* Safety check in case we go crazy */
57 #define MAX_NEST_LEVELS 5
59 extern fixed_queue_t *btu_general_alarm_queue;
61 /*******************************************************************************
63 ** Function sdpu_build_uuid_seq
65 ** Description This function builds a UUID sequence from the list of
66 ** passed UUIDs. It is also passed the address of the output
69 ** Returns Pointer to next byte in the output buffer.
71 *******************************************************************************/
72 static UINT8 *sdpu_build_uuid_seq (UINT8 *p_out, UINT16 num_uuids, tSDP_UUID *p_uuid_list)
77 /* First thing is the data element header */
78 UINT8_TO_BE_STREAM (p_out, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
80 /* Remember where the length goes. Leave space for it. */
84 /* Now, loop through and put in all the UUID(s) */
85 for (xx = 0; xx < num_uuids; xx++, p_uuid_list++)
87 if (p_uuid_list->len == 2)
89 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_TWO_BYTES);
90 UINT16_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid16);
92 else if (p_uuid_list->len == 4)
94 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_FOUR_BYTES);
95 UINT32_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid32);
99 UINT8_TO_BE_STREAM (p_out, (UUID_DESC_TYPE << 3) | SIZE_SIXTEEN_BYTES);
100 ARRAY_TO_BE_STREAM (p_out, p_uuid_list->uu.uuid128, p_uuid_list->len);
104 /* Now, put in the length */
105 xx = (UINT16)(p_out - p_len - 1);
106 UINT8_TO_BE_STREAM (p_len, xx);
111 /*******************************************************************************
113 ** Function sdp_snd_service_search_req
115 ** Description Send a service search request to the SDP server.
119 *******************************************************************************/
120 static void sdp_snd_service_search_req(tCONN_CB *p_ccb, UINT8 cont_len, UINT8 * p_cont)
122 UINT8 *p, *p_start, *p_param_len;
123 BT_HDR *p_cmd = (BT_HDR *) osi_malloc(SDP_DATA_BUF_SIZE);
126 /* Prepare the buffer for sending the packet to L2CAP */
127 p_cmd->offset = L2CAP_MIN_OFFSET;
128 p = p_start = (UINT8 *)(p_cmd + 1) + L2CAP_MIN_OFFSET;
130 /* Build a service search request packet */
131 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_SEARCH_REQ);
132 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
133 p_ccb->transaction_id++;
135 /* Skip the length, we need to add it at the end */
139 /* Build the UID sequence. */
140 #if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
141 p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
143 p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
146 /* Set max service record count */
147 UINT16_TO_BE_STREAM (p, sdp_cb.max_recs_per_search);
149 /* Set continuation state */
150 UINT8_TO_BE_STREAM (p, cont_len);
152 /* if this is not the first request */
153 if(cont_len && p_cont)
155 memcpy(p, p_cont, cont_len);
159 /* Go back and put the parameter length into the buffer */
160 param_len = (UINT16)(p - p_param_len - 2);
161 UINT16_TO_BE_STREAM (p_param_len, param_len);
163 p_ccb->disc_state = SDP_DISC_WAIT_HANDLES;
165 /* Set the length of the SDP data in the buffer */
166 p_cmd->len = (UINT16)(p - p_start);
168 #if (SDP_DEBUG_RAW == TRUE)
169 SDP_TRACE_WARNING("sdp_snd_service_search_req cont_len :%d disc_state:%d",cont_len, p_ccb->disc_state);
173 L2CA_DataWrite (p_ccb->connection_id, p_cmd);
175 /* Start inactivity timer */
176 alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
177 sdp_conn_timer_timeout, p_ccb, btu_general_alarm_queue);
180 /*******************************************************************************
182 ** Function sdp_disc_connected
184 ** Description This function is called when an SDP discovery attempt is
189 *******************************************************************************/
190 void sdp_disc_connected (tCONN_CB *p_ccb)
192 if (p_ccb->is_attr_search)
194 p_ccb->disc_state = SDP_DISC_WAIT_SEARCH_ATTR;
196 process_service_search_attr_rsp (p_ccb, NULL);
200 /* First step is to get a list of the handles from the server. */
201 /* We are not searching for a specific attribute, so we will */
202 /* first search for the service, then get all attributes of it */
204 p_ccb->num_handles = 0;
205 sdp_snd_service_search_req(p_ccb, 0, NULL);
210 /*******************************************************************************
212 ** Function sdp_disc_server_rsp
214 ** Description This function is called when there is a response from
219 *******************************************************************************/
220 void sdp_disc_server_rsp (tCONN_CB *p_ccb, BT_HDR *p_msg)
223 BOOLEAN invalid_pdu = TRUE;
225 #if (SDP_DEBUG_RAW == TRUE)
226 SDP_TRACE_WARNING("sdp_disc_server_rsp disc_state:%d", p_ccb->disc_state);
229 /* stop inactivity timer when we receive a response */
230 alarm_cancel(p_ccb->sdp_conn_timer);
232 /* Got a reply!! Check what we got back */
233 p = (UINT8 *)(p_msg + 1) + p_msg->offset;
235 BE_STREAM_TO_UINT8 (rsp_pdu, p);
241 case SDP_PDU_SERVICE_SEARCH_RSP:
242 if (p_ccb->disc_state == SDP_DISC_WAIT_HANDLES)
244 process_service_search_rsp (p_ccb, p);
249 case SDP_PDU_SERVICE_ATTR_RSP:
250 if (p_ccb->disc_state == SDP_DISC_WAIT_ATTR)
252 process_service_attr_rsp (p_ccb, p);
257 case SDP_PDU_SERVICE_SEARCH_ATTR_RSP:
258 if (p_ccb->disc_state == SDP_DISC_WAIT_SEARCH_ATTR)
260 process_service_search_attr_rsp (p_ccb, p);
268 SDP_TRACE_WARNING ("SDP - Unexp. PDU: %d in state: %d", rsp_pdu, p_ccb->disc_state);
269 sdp_disconnect (p_ccb, SDP_GENERIC_ERROR);
273 /******************************************************************************
275 ** Function process_service_search_rsp
277 ** Description This function is called when there is a search response from
282 *******************************************************************************/
283 static void process_service_search_rsp (tCONN_CB *p_ccb, UINT8 *p_reply)
286 UINT16 total, cur_handles, orig;
289 /* Skip transaction, and param len */
291 BE_STREAM_TO_UINT16 (total, p_reply);
292 BE_STREAM_TO_UINT16 (cur_handles, p_reply);
294 orig = p_ccb->num_handles;
295 p_ccb->num_handles += cur_handles;
296 if (p_ccb->num_handles == 0)
298 SDP_TRACE_WARNING ("SDP - Rcvd ServiceSearchRsp, no matches");
299 sdp_disconnect (p_ccb, SDP_NO_RECS_MATCH);
303 /* Save the handles that match. We will can only process a certain number. */
304 if (total > sdp_cb.max_recs_per_search)
305 total = sdp_cb.max_recs_per_search;
306 if (p_ccb->num_handles > sdp_cb.max_recs_per_search)
307 p_ccb->num_handles = sdp_cb.max_recs_per_search;
309 for (xx = orig; xx < p_ccb->num_handles; xx++)
310 BE_STREAM_TO_UINT32 (p_ccb->handles[xx], p_reply);
312 BE_STREAM_TO_UINT8 (cont_len, p_reply);
315 if(cont_len > SDP_MAX_CONTINUATION_LEN)
317 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
320 /* stay in the same state */
321 sdp_snd_service_search_req(p_ccb, cont_len, p_reply);
326 p_ccb->disc_state = SDP_DISC_WAIT_ATTR;
328 /* Kick off the first attribute request */
329 process_service_attr_rsp (p_ccb, NULL);
333 /*******************************************************************************
335 ** Function sdp_copy_raw_data
337 ** Description copy the raw data
342 *******************************************************************************/
343 #if (SDP_RAW_DATA_INCLUDED == TRUE)
344 static void sdp_copy_raw_data (tCONN_CB *p_ccb, BOOLEAN offset)
346 unsigned int cpy_len;
351 #if (SDP_DEBUG_RAW == TRUE)
352 UINT8 num_array[SDP_MAX_LIST_BYTE_COUNT];
355 for (i = 0; i < p_ccb->list_len; i++)
357 sprintf((char *)&num_array[i*2],"%02X",(UINT8)(p_ccb->rsp_list[i]));
359 SDP_TRACE_WARNING("result :%s",num_array);
362 if(p_ccb->p_db->raw_data)
364 cpy_len = p_ccb->p_db->raw_size - p_ccb->p_db->raw_used;
365 list_len = p_ccb->list_len;
366 p = &p_ccb->rsp_list[0];
371 p = sdpu_get_len_from_type (p, type, &list_len);
373 if(list_len && list_len < cpy_len )
378 "%s: list_len:%d cpy_len:%d p:%p p_ccb:%p p_db:%p raw_size:%d "
379 "raw_used:%d raw_data:%p",
380 __func__, list_len, cpy_len, p, p_ccb, p_ccb->p_db,
381 p_ccb->p_db->raw_size, p_ccb->p_db->raw_used, p_ccb->p_db->raw_data);
382 memcpy (&p_ccb->p_db->raw_data[p_ccb->p_db->raw_used], p, cpy_len);
383 p_ccb->p_db->raw_used += cpy_len;
388 /*******************************************************************************
390 ** Function process_service_attr_rsp
392 ** Description This function is called when there is a attribute response from
397 *******************************************************************************/
398 static void process_service_attr_rsp (tCONN_CB *p_ccb, UINT8 *p_reply)
400 UINT8 *p_start, *p_param_len;
401 UINT16 param_len, list_byte_count;
402 BOOLEAN cont_request_needed = FALSE;
404 #if (SDP_DEBUG_RAW == TRUE)
405 SDP_TRACE_WARNING("process_service_attr_rsp raw inc:%d",
406 SDP_RAW_DATA_INCLUDED);
408 /* If p_reply is NULL, we were called after the records handles were read */
411 #if (SDP_DEBUG_RAW == TRUE)
412 SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
413 p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
415 /* Skip transaction ID and length */
418 BE_STREAM_TO_UINT16 (list_byte_count, p_reply);
419 #if (SDP_DEBUG_RAW == TRUE)
420 SDP_TRACE_WARNING("list_byte_count:%d", list_byte_count);
423 /* Copy the response to the scratchpad. First, a safety check on the length */
424 if ((p_ccb->list_len + list_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
426 sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
430 #if (SDP_DEBUG_RAW == TRUE)
431 SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
432 p_ccb->list_len, list_byte_count);
434 if (p_ccb->rsp_list == NULL)
435 p_ccb->rsp_list = (UINT8 *)osi_malloc(SDP_MAX_LIST_BYTE_COUNT);
436 memcpy(&p_ccb->rsp_list[p_ccb->list_len], p_reply, list_byte_count);
437 p_ccb->list_len += list_byte_count;
438 p_reply += list_byte_count;
439 #if (SDP_DEBUG_RAW == TRUE)
440 SDP_TRACE_WARNING("list_len: %d(attr_rsp)", p_ccb->list_len);
442 /* Check if we need to request a continuation */
443 SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
447 if (*p_reply > SDP_MAX_CONTINUATION_LEN)
449 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
452 cont_request_needed = TRUE;
457 #if (SDP_RAW_DATA_INCLUDED == TRUE)
458 SDP_TRACE_WARNING("process_service_attr_rsp");
459 sdp_copy_raw_data (p_ccb, FALSE);
462 /* Save the response in the database. Stop on any error */
463 if (!save_attr_seq (p_ccb, &p_ccb->rsp_list[0], &p_ccb->rsp_list[p_ccb->list_len]))
465 sdp_disconnect (p_ccb, SDP_DB_FULL);
473 /* Now, ask for the next handle. Re-use the buffer we just got. */
474 if (p_ccb->cur_handle < p_ccb->num_handles)
476 BT_HDR *p_msg = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
479 p_msg->offset = L2CAP_MIN_OFFSET;
480 p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
482 /* Get all the attributes from the server */
483 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_ATTR_REQ);
484 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
485 p_ccb->transaction_id++;
487 /* Skip the length, we need to add it at the end */
491 UINT32_TO_BE_STREAM (p, p_ccb->handles[p_ccb->cur_handle]);
493 /* Max attribute byte count */
494 UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
496 /* If no attribute filters, build a wildcard attribute sequence */
497 if (p_ccb->p_db->num_attr_filters)
498 p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
500 p = sdpu_build_attrib_seq (p, NULL, 0);
502 /* Was this a continuation request ? */
503 if (cont_request_needed)
505 memcpy (p, p_reply, *p_reply + 1);
509 UINT8_TO_BE_STREAM (p, 0);
511 /* Go back and put the parameter length into the buffer */
512 param_len = (UINT16)(p - p_param_len - 2);
513 UINT16_TO_BE_STREAM (p_param_len, param_len);
515 /* Set the length of the SDP data in the buffer */
516 p_msg->len = (UINT16)(p - p_start);
519 L2CA_DataWrite (p_ccb->connection_id, p_msg);
521 /* Start inactivity timer */
522 alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
523 sdp_conn_timer_timeout, p_ccb,
524 btu_general_alarm_queue);
528 sdp_disconnect (p_ccb, SDP_SUCCESS);
534 /*******************************************************************************
536 ** Function process_service_search_attr_rsp
538 ** Description This function is called when there is a search attribute
539 ** response from the server.
543 *******************************************************************************/
544 static void process_service_search_attr_rsp (tCONN_CB *p_ccb, UINT8 *p_reply)
546 UINT8 *p, *p_start, *p_end, *p_param_len;
549 UINT16 param_len, lists_byte_count = 0;
550 BOOLEAN cont_request_needed = FALSE;
552 #if (SDP_DEBUG_RAW == TRUE)
553 SDP_TRACE_WARNING("process_service_search_attr_rsp");
555 /* If p_reply is NULL, we were called for the initial read */
558 #if (SDP_DEBUG_RAW == TRUE)
559 SDP_TRACE_WARNING("ID & len: 0x%02x-%02x-%02x-%02x",
560 p_reply[0], p_reply[1], p_reply[2], p_reply[3]);
562 /* Skip transaction ID and length */
565 BE_STREAM_TO_UINT16 (lists_byte_count, p_reply);
566 #if (SDP_DEBUG_RAW == TRUE)
567 SDP_TRACE_WARNING("lists_byte_count:%d", lists_byte_count);
570 /* Copy the response to the scratchpad. First, a safety check on the length */
571 if ((p_ccb->list_len + lists_byte_count) > SDP_MAX_LIST_BYTE_COUNT)
573 sdp_disconnect (p_ccb, SDP_INVALID_PDU_SIZE);
577 #if (SDP_DEBUG_RAW == TRUE)
578 SDP_TRACE_WARNING("list_len: %d, list_byte_count: %d",
579 p_ccb->list_len, lists_byte_count);
581 if (p_ccb->rsp_list == NULL)
582 p_ccb->rsp_list = (UINT8 *)osi_malloc(SDP_MAX_LIST_BYTE_COUNT);
583 memcpy (&p_ccb->rsp_list[p_ccb->list_len], p_reply, lists_byte_count);
584 p_ccb->list_len += lists_byte_count;
585 p_reply += lists_byte_count;
586 #if (SDP_DEBUG_RAW == TRUE)
587 SDP_TRACE_WARNING("list_len: %d(search_attr_rsp)", p_ccb->list_len);
589 /* Check if we need to request a continuation */
590 SDP_TRACE_WARNING("*p_reply:%d(%d)", *p_reply, SDP_MAX_CONTINUATION_LEN);
594 if (*p_reply > SDP_MAX_CONTINUATION_LEN)
596 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
600 cont_request_needed = TRUE;
604 #if (SDP_DEBUG_RAW == TRUE)
605 SDP_TRACE_WARNING("cont_request_needed:%d", cont_request_needed);
607 /* If continuation request (or first time request) */
608 if ((cont_request_needed) || (!p_reply))
610 BT_HDR *p_msg = (BT_HDR *)osi_malloc(SDP_DATA_BUF_SIZE);
613 p_msg->offset = L2CAP_MIN_OFFSET;
614 p = p_start = (UINT8 *)(p_msg + 1) + L2CAP_MIN_OFFSET;
616 /* Build a service search request packet */
617 UINT8_TO_BE_STREAM (p, SDP_PDU_SERVICE_SEARCH_ATTR_REQ);
618 UINT16_TO_BE_STREAM (p, p_ccb->transaction_id);
619 p_ccb->transaction_id++;
621 /* Skip the length, we need to add it at the end */
625 /* Build the UID sequence. */
626 #if (defined(SDP_BROWSE_PLUS) && SDP_BROWSE_PLUS == TRUE)
627 p = sdpu_build_uuid_seq (p, 1, &p_ccb->p_db->uuid_filters[p_ccb->cur_uuid_idx]);
629 p = sdpu_build_uuid_seq (p, p_ccb->p_db->num_uuid_filters, p_ccb->p_db->uuid_filters);
632 /* Max attribute byte count */
633 UINT16_TO_BE_STREAM (p, sdp_cb.max_attr_list_size);
635 /* If no attribute filters, build a wildcard attribute sequence */
636 if (p_ccb->p_db->num_attr_filters)
637 p = sdpu_build_attrib_seq (p, p_ccb->p_db->attr_filters, p_ccb->p_db->num_attr_filters);
639 p = sdpu_build_attrib_seq (p, NULL, 0);
641 /* No continuation for first request */
644 memcpy (p, p_reply, *p_reply + 1);
648 UINT8_TO_BE_STREAM (p, 0);
650 /* Go back and put the parameter length into the buffer */
651 param_len = p - p_param_len - 2;
652 UINT16_TO_BE_STREAM (p_param_len, param_len);
654 /* Set the length of the SDP data in the buffer */
655 p_msg->len = p - p_start;
658 L2CA_DataWrite (p_ccb->connection_id, p_msg);
660 /* Start inactivity timer */
661 alarm_set_on_queue(p_ccb->sdp_conn_timer, SDP_INACT_TIMEOUT_MS,
662 sdp_conn_timer_timeout, p_ccb,
663 btu_general_alarm_queue);
669 /*******************************************************************/
670 /* We now have the full response, which is a sequence of sequences */
671 /*******************************************************************/
673 #if (SDP_RAW_DATA_INCLUDED == TRUE)
674 SDP_TRACE_WARNING("process_service_search_attr_rsp");
675 sdp_copy_raw_data (p_ccb, TRUE);
678 p = &p_ccb->rsp_list[0];
680 /* The contents is a sequence of attribute sequences */
683 if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
685 SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
688 p = sdpu_get_len_from_type (p, type, &seq_len);
690 p_end = &p_ccb->rsp_list[p_ccb->list_len];
692 if ((p + seq_len) != p_end)
694 sdp_disconnect (p_ccb, SDP_INVALID_CONT_STATE);
700 p = save_attr_seq (p_ccb, p, &p_ccb->rsp_list[p_ccb->list_len]);
703 sdp_disconnect (p_ccb, SDP_DB_FULL);
708 /* Since we got everything we need, disconnect the call */
709 sdp_disconnect (p_ccb, SDP_SUCCESS);
712 /*******************************************************************************
714 ** Function save_attr_seq
716 ** Description This function is called when there is a response from
719 ** Returns pointer to next byte or NULL if error
721 *******************************************************************************/
722 static UINT8 *save_attr_seq (tCONN_CB *p_ccb, UINT8 *p, UINT8 *p_msg_end)
724 UINT32 seq_len, attr_len;
726 UINT8 type, *p_seq_end;
727 tSDP_DISC_REC *p_rec;
731 if ((type >> 3) != DATA_ELE_SEQ_DESC_TYPE)
733 SDP_TRACE_WARNING ("SDP - Wrong type: 0x%02x in attr_rsp", type);
737 p = sdpu_get_len_from_type (p, type, &seq_len);
738 if ((p + seq_len) > p_msg_end)
740 SDP_TRACE_WARNING ("SDP - Bad len in attr_rsp %d", seq_len);
744 /* Create a record */
745 p_rec = add_record (p_ccb->p_db, p_ccb->device_address);
748 SDP_TRACE_WARNING ("SDP - DB full add_record");
752 p_seq_end = p + seq_len;
754 while (p < p_seq_end)
756 /* First get the attribute ID */
758 p = sdpu_get_len_from_type (p, type, &attr_len);
759 if (((type >> 3) != UINT_DESC_TYPE) || (attr_len != 2))
761 SDP_TRACE_WARNING ("SDP - Bad type: 0x%02x or len: %d in attr_rsp", type, attr_len);
764 BE_STREAM_TO_UINT16 (attr_id, p);
766 /* Now, add the attribute value */
767 p = add_attr (p, p_ccb->p_db, p_rec, attr_id, NULL, 0);
771 SDP_TRACE_WARNING ("SDP - DB full add_attr");
780 /*******************************************************************************
782 ** Function add_record
784 ** Description This function allocates space for a record from the DB.
786 ** Returns pointer to next byte in data stream
788 *******************************************************************************/
789 tSDP_DISC_REC *add_record (tSDP_DISCOVERY_DB *p_db, BD_ADDR p_bda)
791 tSDP_DISC_REC *p_rec;
793 /* See if there is enough space in the database */
794 if (p_db->mem_free < sizeof (tSDP_DISC_REC))
797 p_rec = (tSDP_DISC_REC *) p_db->p_free_mem;
798 p_db->p_free_mem += sizeof (tSDP_DISC_REC);
799 p_db->mem_free -= sizeof (tSDP_DISC_REC);
801 p_rec->p_first_attr = NULL;
802 p_rec->p_next_rec = NULL;
804 memcpy (p_rec->remote_bd_addr, p_bda, BD_ADDR_LEN);
806 /* Add the record to the end of chain */
807 if (!p_db->p_first_rec)
808 p_db->p_first_rec = p_rec;
811 tSDP_DISC_REC *p_rec1 = p_db->p_first_rec;
813 while (p_rec1->p_next_rec)
814 p_rec1 = p_rec1->p_next_rec;
816 p_rec1->p_next_rec = p_rec;
822 #define SDP_ADDITIONAL_LIST_MASK 0x80
823 /*******************************************************************************
827 ** Description This function allocates space for an attribute from the DB
828 ** and copies the data into it.
830 ** Returns pointer to next byte in data stream
832 *******************************************************************************/
833 static UINT8 *add_attr (UINT8 *p, tSDP_DISCOVERY_DB *p_db, tSDP_DISC_REC *p_rec,
834 UINT16 attr_id, tSDP_DISC_ATTR *p_parent_attr, UINT8 nest_level)
836 tSDP_DISC_ATTR *p_attr;
843 UINT8 is_additional_list = nest_level & SDP_ADDITIONAL_LIST_MASK;
845 nest_level &= ~(SDP_ADDITIONAL_LIST_MASK);
848 p = sdpu_get_len_from_type (p, type, &attr_len);
850 attr_len &= SDP_DISC_ATTR_LEN_MASK;
851 attr_type = (type >> 3) & 0x0f;
853 /* See if there is enough space in the database */
855 total_len = attr_len - 4 + (UINT16)sizeof (tSDP_DISC_ATTR);
857 total_len = sizeof (tSDP_DISC_ATTR);
859 /* Ensure it is a multiple of 4 */
860 total_len = (total_len + 3) & ~3;
862 /* See if there is enough space in the database */
863 if (p_db->mem_free < total_len)
866 p_attr = (tSDP_DISC_ATTR *) p_db->p_free_mem;
867 p_attr->attr_id = attr_id;
868 p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
869 p_attr->p_next_attr = NULL;
871 /* Store the attribute value */
875 if( (is_additional_list != 0) && (attr_len == 2) )
877 BE_STREAM_TO_UINT16 (id, p);
878 if(id != ATTR_ID_PROTOCOL_DESC_LIST)
882 /* Reserve the memory for the attribute now, as we need to add sub-attributes */
883 p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
884 p_db->mem_free -= sizeof (tSDP_DISC_ATTR);
885 p_end = p + attr_len;
888 /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d(list)", nest_level); */
889 if (nest_level >= MAX_NEST_LEVELS)
891 SDP_TRACE_ERROR ("SDP - attr nesting too deep");
895 /* Now, add the list entry */
896 p = add_attr (p, p_db, p_rec, ATTR_ID_PROTOCOL_DESC_LIST, p_attr, (UINT8)(nest_level + 1));
901 /* Case falls through */
903 case TWO_COMP_INT_DESC_TYPE:
907 p_attr->attr_value.v.u8 = *p++;
910 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
913 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
916 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
925 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
928 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
929 if (p_attr->attr_value.v.u32 < 0x10000)
932 p_attr->attr_len_type = (UINT16)attr_len | (attr_type << 12);
933 p_attr->attr_value.v.u16 = (UINT16) p_attr->attr_value.v.u32;
938 /* See if we can compress his UUID down to 16 or 32bit UUIDs */
939 if (sdpu_is_base_uuid (p))
941 if ((p[0] == 0) && (p[1] == 0))
943 p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 2;
945 BE_STREAM_TO_UINT16 (p_attr->attr_value.v.u16, p);
946 p += MAX_UUID_SIZE - 4;
950 p_attr->attr_len_type = (p_attr->attr_len_type & ~SDP_DISC_ATTR_LEN_MASK) | 4;
951 BE_STREAM_TO_UINT32 (p_attr->attr_value.v.u32, p);
952 p += MAX_UUID_SIZE - 4;
957 /* coverity[overrun-local] */
959 Event overrun-local: Overrun of static array "p_attr->attr_value.v.array" of size 4 at position 15 with index variable "ijk"
960 False-positive: SDP uses scratch buffer to hold the attribute value.
961 The actual size of tSDP_DISC_ATVAL does not matter.
962 If the array size in tSDP_DISC_ATVAL is increase, we would increase the system RAM usage unnecessarily
964 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
968 SDP_TRACE_WARNING ("SDP - bad len in UUID attr: %d", attr_len);
969 return (p + attr_len);
973 case DATA_ELE_SEQ_DESC_TYPE:
974 case DATA_ELE_ALT_DESC_TYPE:
975 /* Reserve the memory for the attribute now, as we need to add sub-attributes */
976 p_db->p_free_mem += sizeof (tSDP_DISC_ATTR);
977 p_db->mem_free -= sizeof (tSDP_DISC_ATTR);
978 p_end = p + attr_len;
981 /* SDP_TRACE_DEBUG ("SDP - attr nest level:%d", nest_level); */
982 if (nest_level >= MAX_NEST_LEVELS)
984 SDP_TRACE_ERROR ("SDP - attr nesting too deep");
987 if(is_additional_list != 0 || attr_id == ATTR_ID_ADDITION_PROTO_DESC_LISTS)
988 nest_level |= SDP_ADDITIONAL_LIST_MASK;
989 /* SDP_TRACE_DEBUG ("SDP - attr nest level:0x%x(finish)", nest_level); */
993 /* Now, add the list entry */
994 p = add_attr (p, p_db, p_rec, 0, p_attr, (UINT8)(nest_level + 1));
1001 case TEXT_STR_DESC_TYPE:
1003 BE_STREAM_TO_ARRAY (p, p_attr->attr_value.v.array, (INT32)attr_len);
1006 case BOOLEAN_DESC_TYPE:
1010 p_attr->attr_value.v.u8 = *p++;
1013 SDP_TRACE_WARNING ("SDP - bad len in boolean attr: %d", attr_len);
1014 return (p + attr_len);
1018 default: /* switch (attr_type) */
1022 p_db->p_free_mem += total_len;
1023 p_db->mem_free -= total_len;
1025 /* Add the attribute to the end of the chain */
1028 if (!p_rec->p_first_attr)
1029 p_rec->p_first_attr = p_attr;
1032 tSDP_DISC_ATTR *p_attr1 = p_rec->p_first_attr;
1034 while (p_attr1->p_next_attr)
1035 p_attr1 = p_attr1->p_next_attr;
1037 p_attr1->p_next_attr = p_attr;
1042 if (!p_parent_attr->attr_value.v.p_sub_attr)
1044 p_parent_attr->attr_value.v.p_sub_attr = p_attr;
1045 /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch:0x%x(id:%d)",
1046 p_parent_attr, p_parent_attr->attr_id, p_attr, p_attr->attr_id); */
1050 tSDP_DISC_ATTR *p_attr1 = p_parent_attr->attr_value.v.p_sub_attr;
1051 /* SDP_TRACE_DEBUG ("parent:0x%x(id:%d), ch1:0x%x(id:%d)",
1052 p_parent_attr, p_parent_attr->attr_id, p_attr1, p_attr1->attr_id); */
1054 while (p_attr1->p_next_attr)
1055 p_attr1 = p_attr1->p_next_attr;
1057 p_attr1->p_next_attr = p_attr;
1058 /* SDP_TRACE_DEBUG ("new ch:0x%x(id:%d)", p_attr, p_attr->attr_id); */
1065 #endif /* CLIENT_ENABLED == TRUE */