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