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      1 /******************************************************************************
      2  *
      3  *  Copyright 2009-2013 Broadcom Corporation
      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 #define LOG_TAG "bt_btif_gatt"
     20 
     21 #include "btif_gatt_util.h"
     22 
     23 #include <errno.h>
     24 #include <stdio.h>
     25 #include <stdlib.h>
     26 #include <string.h>
     27 
     28 #include <hardware/bluetooth.h>
     29 #include <hardware/bt_gatt.h>
     30 
     31 #include "bt_common.h"
     32 #include "bta_api.h"
     33 #include "bta_gatt_api.h"
     34 #include "bta_jv_api.h"
     35 #include "btif_common.h"
     36 #include "btif_config.h"
     37 #include "btif_dm.h"
     38 #include "btif_gatt.h"
     39 #include "btif_storage.h"
     40 #include "btif_util.h"
     41 #include "osi/include/osi.h"
     42 
     43 using bluetooth::Uuid;
     44 
     45 /*******************************************************************************
     46  * BTIF -> BTA conversion functions
     47  ******************************************************************************/
     48 void btif_to_bta_response(tGATTS_RSP* p_dest, btgatt_response_t* p_src) {
     49   p_dest->attr_value.auth_req = p_src->attr_value.auth_req;
     50   p_dest->attr_value.handle = p_src->attr_value.handle;
     51   p_dest->attr_value.len = p_src->attr_value.len;
     52   p_dest->attr_value.offset = p_src->attr_value.offset;
     53   memcpy(p_dest->attr_value.value, p_src->attr_value.value, GATT_MAX_ATTR_LEN);
     54 }
     55 
     56 /*******************************************************************************
     57  * Encrypted link map handling
     58  ******************************************************************************/
     59 
     60 #if (BLE_DELAY_REQUEST_ENC == FALSE)
     61 static bool btif_gatt_is_link_encrypted(const RawAddress& bd_addr) {
     62   return BTA_JvIsEncrypted(bd_addr);
     63 }
     64 
     65 static void btif_gatt_set_encryption_cb(UNUSED_ATTR const RawAddress& bd_addr,
     66                                         UNUSED_ATTR tBTA_TRANSPORT transport,
     67                                         tBTA_STATUS result) {
     68   if (result != BTA_SUCCESS && result != BTA_BUSY) {
     69     BTIF_TRACE_WARNING("%s() - Encryption failed (%d)", __func__, result);
     70   }
     71 }
     72 #endif
     73 
     74 #if (BLE_DELAY_REQUEST_ENC == FALSE)
     75 void btif_gatt_check_encrypted_link(RawAddress bd_addr,
     76                                     tGATT_TRANSPORT transport_link) {
     77   tBTM_LE_PENC_KEYS key;
     78   if ((btif_storage_get_ble_bonding_key(
     79            &bd_addr, BTIF_DM_LE_KEY_PENC, (uint8_t*)&key,
     80            sizeof(tBTM_LE_PENC_KEYS)) == BT_STATUS_SUCCESS) &&
     81       !btif_gatt_is_link_encrypted(bd_addr)) {
     82     BTIF_TRACE_DEBUG("%s: transport = %d", __func__, transport_link);
     83     BTA_DmSetEncryption(bd_addr, transport_link, &btif_gatt_set_encryption_cb,
     84                         BTM_BLE_SEC_ENCRYPT);
     85   }
     86 }
     87 #else
     88 void btif_gatt_check_encrypted_link(UNUSED_ATTR RawAddress bd_addr,
     89                                     UNUSED_ATTR tGATT_TRANSPORT
     90                                         transport_link) {}
     91 #endif
     92 
     93 void btif_gatt_move_track_adv_data(btgatt_track_adv_info_t* p_dest,
     94                                    btgatt_track_adv_info_t* p_src) {
     95   memset(p_dest, 0, sizeof(btgatt_track_adv_info_t));
     96 
     97   memcpy(p_dest, p_src, sizeof(btgatt_track_adv_info_t));
     98 
     99   if (p_src->adv_pkt_len > 0) {
    100     p_dest->p_adv_pkt_data = (uint8_t*)osi_malloc(p_src->adv_pkt_len);
    101     memcpy(p_dest->p_adv_pkt_data, p_src->p_adv_pkt_data, p_src->adv_pkt_len);
    102     osi_free_and_reset((void**)&p_src->p_adv_pkt_data);
    103   }
    104 
    105   if (p_src->scan_rsp_len > 0) {
    106     p_dest->p_scan_rsp_data = (uint8_t*)osi_malloc(p_src->scan_rsp_len);
    107     memcpy(p_dest->p_scan_rsp_data, p_src->p_scan_rsp_data,
    108            p_src->scan_rsp_len);
    109     osi_free_and_reset((void**)&p_src->p_scan_rsp_data);
    110   }
    111 }
    112