1 /******************************************************************************
2 *
3 * Copyright 2014 Samsung System LSI
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 /*******************************************************************************
20 *
21 * Filename: btif_sdp.c
22 * Description: SDP Bluetooth Interface.
23 * Implements the generic message handling and search
24 * functionality.
25 * References btif_sdp_server.c for SDP record creation.
26 *
27 ******************************************************************************/
28
29 #define LOG_TAG "bt_btif_sdp"
30
31 #include <stdlib.h>
32 #include <string.h>
33
34 #include <hardware/bluetooth.h>
35 #include <hardware/bt_sdp.h>
36
37 #include "bta_api.h"
38 #include "bta_sdp_api.h"
39 #include "btif_common.h"
40 #include "btif_profile_queue.h"
41 #include "btif_util.h"
42
43 using bluetooth::Uuid;
44
45 /*****************************************************************************
46 * Functions implemented in sdp_server.c
47 *****************************************************************************/
48 bt_status_t sdp_server_init();
49 void sdp_server_cleanup();
50 bt_status_t create_sdp_record(bluetooth_sdp_record* records,
51 int* record_handles);
52 bt_status_t remove_sdp_record(int record_handle);
53 void on_create_record_event(int handle);
54 void on_remove_record_event(int handle);
55
56 // Utility functions:
57 int get_sdp_records_size(bluetooth_sdp_record* in_record, int count);
58 void copy_sdp_records(bluetooth_sdp_record* in_records,
59 bluetooth_sdp_record* out_records, int count);
60
61 /*****************************************************************************
62 * Static variables
63 *****************************************************************************/
64
65 static btsdp_callbacks_t* bt_sdp_callbacks = NULL;
66
btif_sdp_search_comp_evt(uint16_t event,char * p_param)67 static void btif_sdp_search_comp_evt(uint16_t event, char* p_param) {
68 tBTA_SDP_SEARCH_COMP* evt_data = (tBTA_SDP_SEARCH_COMP*)p_param;
69 BTIF_TRACE_DEBUG("%s: event = %d", __func__, event);
70
71 if (event != BTA_SDP_SEARCH_COMP_EVT) return;
72
73 HAL_CBACK(bt_sdp_callbacks, sdp_search_cb, (bt_status_t)evt_data->status,
74 evt_data->remote_addr, evt_data->uuid, evt_data->record_count,
75 evt_data->records);
76 }
77
sdp_search_comp_copy_cb(uint16_t event,char * p_dest,char * p_src)78 static void sdp_search_comp_copy_cb(uint16_t event, char* p_dest, char* p_src) {
79 tBTA_SDP_SEARCH_COMP* p_dest_data = (tBTA_SDP_SEARCH_COMP*)p_dest;
80 tBTA_SDP_SEARCH_COMP* p_src_data = (tBTA_SDP_SEARCH_COMP*)p_src;
81
82 if (!p_src) return;
83
84 if (event != BTA_SDP_SEARCH_COMP_EVT) return;
85
86 maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data));
87
88 copy_sdp_records(p_src_data->records, p_dest_data->records,
89 p_src_data->record_count);
90 }
91
sdp_dm_cback(tBTA_SDP_EVT event,tBTA_SDP * p_data,void * user_data)92 static void sdp_dm_cback(tBTA_SDP_EVT event, tBTA_SDP* p_data,
93 void* user_data) {
94 switch (event) {
95 case BTA_SDP_SEARCH_COMP_EVT: {
96 int size = sizeof(tBTA_SDP);
97 size += get_sdp_records_size(p_data->sdp_search_comp.records,
98 p_data->sdp_search_comp.record_count);
99
100 /* need to deep copy the record content */
101 btif_transfer_context(btif_sdp_search_comp_evt, event, (char*)p_data,
102 size, sdp_search_comp_copy_cb);
103 break;
104 }
105 case BTA_SDP_CREATE_RECORD_USER_EVT: {
106 on_create_record_event(PTR_TO_INT(user_data));
107 break;
108 }
109 case BTA_SDP_REMOVE_RECORD_USER_EVT: {
110 on_remove_record_event(PTR_TO_INT(user_data));
111 break;
112 }
113 default:
114 break;
115 }
116 }
117
init(btsdp_callbacks_t * callbacks)118 static bt_status_t init(btsdp_callbacks_t* callbacks) {
119 BTIF_TRACE_DEBUG("Sdp Search %s", __func__);
120
121 bt_sdp_callbacks = callbacks;
122 sdp_server_init();
123
124 btif_enable_service(BTA_SDP_SERVICE_ID);
125
126 return BT_STATUS_SUCCESS;
127 }
128
deinit()129 static bt_status_t deinit() {
130 BTIF_TRACE_DEBUG("Sdp Search %s", __func__);
131
132 bt_sdp_callbacks = NULL;
133 sdp_server_cleanup();
134 btif_disable_service(BTA_SDP_SERVICE_ID);
135
136 return BT_STATUS_SUCCESS;
137 }
138
search(RawAddress * bd_addr,const Uuid & uuid)139 static bt_status_t search(RawAddress* bd_addr, const Uuid& uuid) {
140 BTA_SdpSearch(*bd_addr, uuid);
141 return BT_STATUS_SUCCESS;
142 }
143
144 static const btsdp_interface_t sdp_if = {
145 sizeof(btsdp_interface_t), init, deinit, search, create_sdp_record,
146 remove_sdp_record};
147
btif_sdp_get_interface(void)148 const btsdp_interface_t* btif_sdp_get_interface(void) {
149 BTIF_TRACE_DEBUG("%s", __func__);
150 return &sdp_if;
151 }
152
153 /*******************************************************************************
154 *
155 * Function btif_sdp_execute_service
156 *
157 * Description Initializes/Shuts down the service
158 *
159 * Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
160 *
161 ******************************************************************************/
btif_sdp_execute_service(bool b_enable)162 bt_status_t btif_sdp_execute_service(bool b_enable) {
163 BTIF_TRACE_DEBUG("%s enable:%d", __func__, b_enable);
164
165 if (b_enable) {
166 BTA_SdpEnable(sdp_dm_cback);
167 } else {
168 /* This is called on BT disable so no need to extra cleanup */
169 }
170 return BT_STATUS_SUCCESS;
171 }
172