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 "btif/include/btif_sdp.h"
32
33 #include <bluetooth/log.h>
34 #include <hardware/bluetooth.h>
35 #include <hardware/bt_sdp.h>
36 #include <stdlib.h>
37 #include <string.h>
38
39 #include "bta/include/bta_sdp_api.h"
40 #include "bta_api.h"
41 #include "btif_common.h"
42 #include "types/bluetooth/uuid.h"
43 #include "types/raw_address.h"
44
45 using bluetooth::Uuid;
46 using namespace bluetooth;
47
48 /*****************************************************************************
49 * Functions implemented in sdp_server.c
50 *****************************************************************************/
51 bt_status_t sdp_server_init();
52 void sdp_server_cleanup();
53 bt_status_t create_sdp_record(bluetooth_sdp_record* records, int* record_handles);
54 bt_status_t remove_sdp_record(int record_handle);
55 void on_create_record_event(int handle);
56 void on_remove_record_event(int handle);
57
58 // Utility functions:
59 int get_sdp_records_size(bluetooth_sdp_record* in_record, int count);
60 void copy_sdp_records(bluetooth_sdp_record* in_records, bluetooth_sdp_record* out_records,
61 int count);
62
63 /*****************************************************************************
64 * Static variables
65 *****************************************************************************/
66
67 static btsdp_callbacks_t* bt_sdp_callbacks = NULL;
68
btif_sdp_search_comp_evt(uint16_t event,char * p_param)69 static void btif_sdp_search_comp_evt(uint16_t event, char* p_param) {
70 tBTA_SDP_SEARCH_COMP* evt_data = (tBTA_SDP_SEARCH_COMP*)p_param;
71 log::verbose("event = {}", event);
72
73 if (event != BTA_SDP_SEARCH_COMP_EVT) {
74 return;
75 }
76
77 HAL_CBACK(bt_sdp_callbacks, sdp_search_cb, (bt_status_t)evt_data->status, evt_data->remote_addr,
78 evt_data->uuid, evt_data->record_count, evt_data->records);
79 }
80
sdp_search_comp_copy_cb(uint16_t event,char * p_dest,const char * p_src)81 static void sdp_search_comp_copy_cb(uint16_t event, char* p_dest, const char* p_src) {
82 tBTA_SDP_SEARCH_COMP* p_dest_data = (tBTA_SDP_SEARCH_COMP*)p_dest;
83 tBTA_SDP_SEARCH_COMP* p_src_data = (tBTA_SDP_SEARCH_COMP*)p_src;
84
85 if (!p_src) {
86 return;
87 }
88
89 if (event != BTA_SDP_SEARCH_COMP_EVT) {
90 return;
91 }
92
93 maybe_non_aligned_memcpy(p_dest_data, p_src_data, sizeof(*p_src_data));
94
95 copy_sdp_records(p_src_data->records, p_dest_data->records, p_src_data->record_count);
96 }
97
sdp_dm_cback(tBTA_SDP_EVT event,tBTA_SDP * p_data,void * user_data)98 static void sdp_dm_cback(tBTA_SDP_EVT event, tBTA_SDP* p_data, void* user_data) {
99 switch (event) {
100 case BTA_SDP_SEARCH_COMP_EVT: {
101 int size = sizeof(tBTA_SDP);
102 size += get_sdp_records_size(p_data->sdp_search_comp.records,
103 p_data->sdp_search_comp.record_count);
104
105 /* need to deep copy the record content */
106 btif_transfer_context(btif_sdp_search_comp_evt, event, (char*)p_data, size,
107 sdp_search_comp_copy_cb);
108 break;
109 }
110 case BTA_SDP_CREATE_RECORD_USER_EVT: {
111 on_create_record_event(PTR_TO_INT(user_data));
112 break;
113 }
114 case BTA_SDP_REMOVE_RECORD_USER_EVT: {
115 on_remove_record_event(PTR_TO_INT(user_data));
116 break;
117 }
118 default:
119 break;
120 }
121 }
122
init(btsdp_callbacks_t * callbacks)123 static bt_status_t init(btsdp_callbacks_t* callbacks) {
124 log::verbose("Sdp Search Init");
125
126 bt_sdp_callbacks = callbacks;
127 sdp_server_init();
128
129 btif_enable_service(BTA_SDP_SERVICE_ID);
130
131 return BT_STATUS_SUCCESS;
132 }
133
deinit()134 static bt_status_t deinit() {
135 log::verbose("Sdp Search Deinit");
136
137 bt_sdp_callbacks = NULL;
138 sdp_server_cleanup();
139 btif_disable_service(BTA_SDP_SERVICE_ID);
140
141 return BT_STATUS_SUCCESS;
142 }
143
search(RawAddress * bd_addr,const Uuid & uuid)144 static bt_status_t search(RawAddress* bd_addr, const Uuid& uuid) {
145 BTA_SdpSearch(*bd_addr, uuid);
146 return BT_STATUS_SUCCESS;
147 }
148
149 static const btsdp_interface_t sdp_if = {
150 sizeof(btsdp_interface_t), init, deinit, search, create_sdp_record, remove_sdp_record};
151
btif_sdp_get_interface(void)152 const btsdp_interface_t* btif_sdp_get_interface(void) {
153 log::verbose("");
154 return &sdp_if;
155 }
156
157 /*******************************************************************************
158 *
159 * Function btif_sdp_execute_service
160 *
161 * Description Initializes/Shuts down the service
162 *
163 * Returns BT_STATUS_SUCCESS on success, BT_STATUS_FAIL otherwise
164 *
165 ******************************************************************************/
btif_sdp_execute_service(bool b_enable)166 bt_status_t btif_sdp_execute_service(bool b_enable) {
167 log::verbose("enable:{}", b_enable);
168
169 if (b_enable) {
170 BTA_SdpEnable(sdp_dm_cback);
171 } else {
172 /* This is called on BT disable so no need to extra cleanup */
173 }
174 return BT_STATUS_SUCCESS;
175 }
176