2666 lines
96 KiB
C
2666 lines
96 KiB
C
/******************************************************************************
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*
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* Copyright (C) 1999-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* This file contains functions for BLE device control utilities, and LE
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* security functions.
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*
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******************************************************************************/
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#include "bt_target.h"
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#if BLE_INCLUDED == TRUE
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#include <string.h>
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#include "bt_types.h"
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#include "hcimsgs.h"
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#include "btu.h"
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#include "btm_int.h"
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#include "btm_ble_api.h"
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#include "smp_api.h"
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#include "l2c_int.h"
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#include "gap_api.h"
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//#include "bt_utils.h"
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#include "controller.h"
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//#define LOG_TAG "bt_btm_ble"
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//#include "osi/include/log.h"
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#if SMP_INCLUDED == TRUE
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// The temp variable to pass parameter between functions when in the connected event comeback.
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static BOOLEAN temp_enhanced = FALSE;
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extern BOOLEAN aes_cipher_msg_auth_code(BT_OCTET16 key, UINT8 *input, UINT16 length,
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UINT16 tlen, UINT8 *p_signature);
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extern void smp_link_encrypted(BD_ADDR bda, UINT8 encr_enable);
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extern BOOLEAN smp_proc_ltk_request(BD_ADDR bda);
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#endif
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extern void gatt_notify_enc_cmpl(BD_ADDR bd_addr);
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/*******************************************************************************/
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/* External Function to be called by other modules */
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/*******************************************************************************/
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/********************************************************
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**
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** Function BTM_SecAddBleDevice
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**
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** Description Add/modify device. This function will be normally called
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** during host startup to restore all required information
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** for a LE device stored in the NVRAM.
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**
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** Parameters: bd_addr - BD address of the peer
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** bd_name - Name of the peer device. NULL if unknown.
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** dev_type - Remote device's device type.
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** addr_type - LE device address type.
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**
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** Returns TRUE if added OK, else FALSE
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**
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*******************************************************************************/
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#if (SMP_INCLUDED == TRUE)
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BOOLEAN BTM_SecAddBleDevice (BD_ADDR bd_addr, BD_NAME bd_name, tBT_DEVICE_TYPE dev_type,
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tBLE_ADDR_TYPE addr_type)
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{
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tBTM_SEC_DEV_REC *p_dev_rec;
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UINT8 i = 0;
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tBTM_INQ_INFO *p_info = NULL;
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BTM_TRACE_DEBUG ("BTM_SecAddBleDevice dev_type=0x%x", dev_type);
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p_dev_rec = btm_find_dev (bd_addr);
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if (!p_dev_rec) {
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BTM_TRACE_DEBUG("Add a new device");
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/* There is no device record, allocate one.
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* If we can not find an empty spot for this one, let it fail. */
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for (i = 0; i < BTM_SEC_MAX_DEVICE_RECORDS; i++) {
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if (!(btm_cb.sec_dev_rec[i].sec_flags & BTM_SEC_IN_USE)) {
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BTM_TRACE_DEBUG ("allocate a new dev rec idx=0x%x ", i );
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p_dev_rec = &btm_cb.sec_dev_rec[i];
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/* Mark this record as in use and initialize */
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memset (p_dev_rec, 0, sizeof (tBTM_SEC_DEV_REC));
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p_dev_rec->sec_flags = BTM_SEC_IN_USE;
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memcpy (p_dev_rec->bd_addr, bd_addr, BD_ADDR_LEN);
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p_dev_rec->hci_handle = BTM_GetHCIConnHandle (bd_addr, BT_TRANSPORT_BR_EDR);
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p_dev_rec->ble_hci_handle = BTM_GetHCIConnHandle (bd_addr, BT_TRANSPORT_LE);
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/* update conn params, use default value for background connection params */
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p_dev_rec->conn_params.min_conn_int =
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p_dev_rec->conn_params.max_conn_int =
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p_dev_rec->conn_params.supervision_tout =
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p_dev_rec->conn_params.slave_latency = BTM_BLE_CONN_PARAM_UNDEF;
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BTM_TRACE_DEBUG ("hci_handl=0x%x ", p_dev_rec->ble_hci_handle );
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break;
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}
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}
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if (!p_dev_rec) {
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return (FALSE);
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}
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} else {
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BTM_TRACE_DEBUG("Device already exist");
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}
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memset(p_dev_rec->sec_bd_name, 0, sizeof(tBTM_BD_NAME));
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if (bd_name && bd_name[0]) {
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p_dev_rec->sec_flags |= BTM_SEC_NAME_KNOWN;
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BCM_STRNCPY_S ((char *)p_dev_rec->sec_bd_name, sizeof (p_dev_rec->sec_bd_name),
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(char *)bd_name, BTM_MAX_REM_BD_NAME_LEN);
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}
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p_dev_rec->device_type |= dev_type;
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p_dev_rec->ble.ble_addr_type = addr_type;
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memcpy (p_dev_rec->ble.pseudo_addr, bd_addr, BD_ADDR_LEN);
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/* sync up with the Inq Data base*/
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p_info = BTM_InqDbRead(bd_addr);
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if (p_info) {
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p_info->results.ble_addr_type = p_dev_rec->ble.ble_addr_type ;
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p_info->results.device_type = p_dev_rec->device_type;
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BTM_TRACE_DEBUG ("InqDb device_type =0x%x addr_type=0x%x",
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p_info->results.device_type, p_info->results.ble_addr_type);
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}
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return (TRUE);
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}
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#endif ///SMP_INCLUDED == TRUE
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/*******************************************************************************
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**
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** Function BTM_SecAddBleKey
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**
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** Description Add/modify LE device information. This function will be
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** normally called during host startup to restore all required
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** information stored in the NVRAM.
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**
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** Parameters: bd_addr - BD address of the peer
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** p_le_key - LE key values.
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** key_type - LE SMP key type.
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*
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** Returns TRUE if added OK, else FALSE
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**
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*******************************************************************************/
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#if SMP_INCLUDED == TRUE
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BOOLEAN BTM_SecAddBleKey (BD_ADDR bd_addr, tBTM_LE_KEY_VALUE *p_le_key, tBTM_LE_KEY_TYPE key_type)
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{
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tBTM_SEC_DEV_REC *p_dev_rec;
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BTM_TRACE_DEBUG ("BTM_SecAddBleKey");
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p_dev_rec = btm_find_dev (bd_addr);
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if (!p_dev_rec || !p_le_key ||
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(key_type != BTM_LE_KEY_PENC && key_type != BTM_LE_KEY_PID &&
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key_type != BTM_LE_KEY_PCSRK && key_type != BTM_LE_KEY_LENC &&
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key_type != BTM_LE_KEY_LCSRK && key_type != BTM_LE_KEY_LID)) {
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BTM_TRACE_WARNING ("BTM_SecAddBleKey() Wrong Type, or No Device record \
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for bdaddr: %08x%04x, Type: %d",
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(bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
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(bd_addr[4] << 8) + bd_addr[5], key_type);
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return (FALSE);
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}
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BTM_TRACE_DEBUG ("BTM_SecAddLeKey() BDA: %08x%04x, Type: 0x%02x",
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(bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
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(bd_addr[4] << 8) + bd_addr[5], key_type);
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btm_sec_save_le_key (bd_addr, key_type, p_le_key, FALSE);
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#if (BLE_PRIVACY_SPT == TRUE)
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if (key_type == BTM_LE_KEY_PID || key_type == BTM_LE_KEY_LID) {
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btm_ble_resolving_list_load_dev (p_dev_rec);
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}
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#endif
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return (TRUE);
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}
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#endif
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/*******************************************************************************
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**
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** Function BTM_BleLoadLocalKeys
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**
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** Description Local local identity key, encryption root or sign counter.
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**
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** Parameters: key_type: type of key, can be BTM_BLE_KEY_TYPE_ID, BTM_BLE_KEY_TYPE_ER
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** or BTM_BLE_KEY_TYPE_COUNTER.
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** p_key: pointer to the key.
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*
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** Returns non2.
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**
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*******************************************************************************/
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void BTM_BleLoadLocalKeys(UINT8 key_type, tBTM_BLE_LOCAL_KEYS *p_key)
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{
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tBTM_DEVCB *p_devcb = &btm_cb.devcb;
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BTM_TRACE_DEBUG ("%s", __func__);
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if (p_key != NULL) {
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switch (key_type) {
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case BTM_BLE_KEY_TYPE_ID:
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memcpy(&p_devcb->id_keys, &p_key->id_keys, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
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break;
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case BTM_BLE_KEY_TYPE_ER:
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memcpy(p_devcb->ble_encryption_key_value, p_key->er, sizeof(BT_OCTET16));
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break;
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default:
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BTM_TRACE_ERROR("unknow local key type: %d", key_type);
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break;
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}
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}
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}
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/*******************************************************************************
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**
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** Function BTM_GetDeviceEncRoot
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**
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** Description This function is called to read the local device encryption
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** root.
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**
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** Returns void
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** the local device ER is copied into ble_encr_key_value
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**
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*******************************************************************************/
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void BTM_GetDeviceEncRoot (BT_OCTET16 ble_encr_key_value)
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{
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BTM_TRACE_DEBUG ("%s", __func__);
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memcpy (ble_encr_key_value, btm_cb.devcb.ble_encryption_key_value, BT_OCTET16_LEN);
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}
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/*******************************************************************************
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**
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** Function BTM_GetDeviceIDRoot
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**
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** Description This function is called to read the local device identity
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** root.
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**
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** Returns void
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** the local device IR is copied into irk
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**
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*******************************************************************************/
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void BTM_GetDeviceIDRoot (BT_OCTET16 irk)
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{
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BTM_TRACE_DEBUG ("BTM_GetDeviceIDRoot ");
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memcpy (irk, btm_cb.devcb.id_keys.irk, BT_OCTET16_LEN);
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}
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/*******************************************************************************
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**
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** Function BTM_GetDeviceDHK
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**
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** Description This function is called to read the local device DHK.
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**
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** Returns void
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** the local device DHK is copied into dhk
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**
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*******************************************************************************/
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void BTM_GetDeviceDHK (BT_OCTET16 dhk)
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{
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BTM_TRACE_DEBUG ("BTM_GetDeviceDHK");
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memcpy (dhk, btm_cb.devcb.id_keys.dhk, BT_OCTET16_LEN);
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}
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/*******************************************************************************
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**
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** Function BTM_ReadConnectionAddr
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**
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** Description This function is called to get the local device address information
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** .
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**
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** Returns void
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**
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*******************************************************************************/
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void BTM_ReadConnectionAddr (BD_ADDR remote_bda, BD_ADDR local_conn_addr, tBLE_ADDR_TYPE *p_addr_type)
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{
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tACL_CONN *p_acl = btm_bda_to_acl(remote_bda, BT_TRANSPORT_LE);
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if (p_acl == NULL) {
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BTM_TRACE_ERROR("No connection exist!");
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return;
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}
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memcpy(local_conn_addr, p_acl->conn_addr, BD_ADDR_LEN);
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* p_addr_type = p_acl->conn_addr_type;
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BTM_TRACE_DEBUG ("BTM_ReadConnectionAddr address type: %d addr: 0x%02x",
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p_acl->conn_addr_type, p_acl->conn_addr[0]);
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}
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/*******************************************************************************
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**
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** Function BTM_IsBleConnection
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**
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** Description This function is called to check if the connection handle
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** for an LE link
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**
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** Returns TRUE if connection is LE link, otherwise FALSE.
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**
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*******************************************************************************/
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BOOLEAN BTM_IsBleConnection (UINT16 conn_handle)
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{
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#if (BLE_INCLUDED == TRUE)
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UINT8 xx;
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tACL_CONN *p;
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BTM_TRACE_API ("BTM_IsBleConnection: conn_handle: %d", conn_handle);
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xx = btm_handle_to_acl_index (conn_handle);
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if (xx >= MAX_L2CAP_LINKS) {
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return FALSE;
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}
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p = &btm_cb.acl_db[xx];
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return (p->transport == BT_TRANSPORT_LE);
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#else
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return FALSE;
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#endif
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}
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/*******************************************************************************
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**
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** Function BTM_ReadRemoteConnectionAddr
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**
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** Description This function is read the remote device address currently used
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**
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** Parameters pseudo_addr: pseudo random address available
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** conn_addr:connection address used
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** p_addr_type : BD Address type, Public or Random of the address used
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**
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** Returns BOOLEAN , TRUE if connection to remote device exists, else FALSE
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**
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*******************************************************************************/
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BOOLEAN BTM_ReadRemoteConnectionAddr(BD_ADDR pseudo_addr, BD_ADDR conn_addr,
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tBLE_ADDR_TYPE *p_addr_type)
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{
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BOOLEAN st = TRUE;
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#if (BLE_PRIVACY_SPT == TRUE)
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tACL_CONN *p = btm_bda_to_acl (pseudo_addr, BT_TRANSPORT_LE);
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if (p == NULL) {
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BTM_TRACE_ERROR("BTM_ReadRemoteConnectionAddr can not find connection"
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" with matching address");
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return FALSE;
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}
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memcpy(conn_addr, p->active_remote_addr, BD_ADDR_LEN);
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*p_addr_type = p->active_remote_addr_type;
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#else
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tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(pseudo_addr);
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memcpy(conn_addr, pseudo_addr, BD_ADDR_LEN);
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if (p_dev_rec != NULL) {
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*p_addr_type = p_dev_rec->ble.ble_addr_type;
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}
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#endif
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return st;
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}
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/*******************************************************************************
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**
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** Function BTM_SecurityGrant
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**
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** Description This function is called to grant security process.
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**
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** Parameters bd_addr - peer device bd address.
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** res - result of the operation BTM_SUCCESS if success.
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** Otherwise, BTM_REPEATED_ATTEMPTS is too many attempts.
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**
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** Returns None
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**
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*******************************************************************************/
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void BTM_SecurityGrant(BD_ADDR bd_addr, UINT8 res)
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{
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#if SMP_INCLUDED == TRUE
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tSMP_STATUS res_smp = (res == BTM_SUCCESS) ? SMP_SUCCESS : SMP_REPEATED_ATTEMPTS;
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BTM_TRACE_DEBUG ("BTM_SecurityGrant");
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SMP_SecurityGrant(bd_addr, res_smp);
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#endif
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}
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/*******************************************************************************
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**
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** Function BTM_BlePasskeyReply
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**
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** Description This function is called after Security Manager submitted
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** passkey request to the application.
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**
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** Parameters: bd_addr - Address of the device for which passkey was requested
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** res - result of the operation BTM_SUCCESS if success
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** key_len - length in bytes of the Passkey
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** p_passkey - pointer to array with the passkey
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** trusted_mask - bitwise OR of trusted services (array of UINT32)
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**
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*******************************************************************************/
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void BTM_BlePasskeyReply (BD_ADDR bd_addr, UINT8 res, UINT32 passkey)
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{
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#if SMP_INCLUDED == TRUE
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tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
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tSMP_STATUS res_smp = (res == BTM_SUCCESS) ? SMP_SUCCESS : SMP_PASSKEY_ENTRY_FAIL;
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if (p_dev_rec == NULL) {
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BTM_TRACE_ERROR("Passkey reply to Unknown device");
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return;
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}
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p_dev_rec->sec_flags |= BTM_SEC_LE_AUTHENTICATED;
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BTM_TRACE_DEBUG ("BTM_BlePasskeyReply");
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SMP_PasskeyReply(bd_addr, res_smp, passkey);
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#endif
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}
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/*******************************************************************************
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**
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** Function BTM_BleConfirmReply
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**
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** Description This function is called after Security Manager submitted
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** numeric comparison request to the application.
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**
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** Parameters: bd_addr - Address of the device with which numeric
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** comparison was requested
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** res - comparison result BTM_SUCCESS if success
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**
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*******************************************************************************/
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#if (SMP_INCLUDED == TRUE)
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void BTM_BleConfirmReply (BD_ADDR bd_addr, UINT8 res)
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{
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tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
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tSMP_STATUS res_smp = (res == BTM_SUCCESS) ? SMP_SUCCESS : SMP_PASSKEY_ENTRY_FAIL;
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if (p_dev_rec == NULL) {
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BTM_TRACE_ERROR("Passkey reply to Unknown device");
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return;
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}
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p_dev_rec->sec_flags |= BTM_SEC_LE_AUTHENTICATED;
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BTM_TRACE_DEBUG ("%s\n", __func__);
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SMP_ConfirmReply(bd_addr, res_smp);
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}
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#endif ///SMP_INCLUDED == TRUE
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/*******************************************************************************
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**
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** Function BTM_BleOobDataReply
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**
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** Description This function is called to provide the OOB data for
|
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** SMP in response to BTM_LE_OOB_REQ_EVT
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**
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** Parameters: bd_addr - Address of the peer device
|
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** res - result of the operation SMP_SUCCESS if success
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** p_data - simple pairing Randomizer C.
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**
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*******************************************************************************/
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void BTM_BleOobDataReply(BD_ADDR bd_addr, UINT8 res, UINT8 len, UINT8 *p_data)
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{
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#if SMP_INCLUDED == TRUE
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tSMP_STATUS res_smp = (res == BTM_SUCCESS) ? SMP_SUCCESS : SMP_OOB_FAIL;
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tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
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BTM_TRACE_DEBUG ("BTM_BleOobDataReply");
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if (p_dev_rec == NULL) {
|
|
BTM_TRACE_ERROR("BTM_BleOobDataReply() to Unknown device");
|
|
return;
|
|
}
|
|
|
|
p_dev_rec->sec_flags |= BTM_SEC_LE_AUTHENTICATED;
|
|
SMP_OobDataReply(bd_addr, res_smp, len, p_data);
|
|
#endif
|
|
}
|
|
|
|
/******************************************************************************
|
|
**
|
|
** Function BTM_BleSetConnScanParams
|
|
**
|
|
** Description Set scan parameter used in BLE connection request
|
|
**
|
|
** Parameters: scan_interval: scan interval
|
|
** scan_window: scan window
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void BTM_BleSetConnScanParams (UINT32 scan_interval, UINT32 scan_window)
|
|
{
|
|
#if SMP_INCLUDED == TRUE
|
|
tBTM_BLE_CB *p_ble_cb = &btm_cb.ble_ctr_cb;
|
|
BOOLEAN new_param = FALSE;
|
|
|
|
if (BTM_BLE_ISVALID_PARAM(scan_interval, BTM_BLE_SCAN_INT_MIN, BTM_BLE_SCAN_INT_MAX) &&
|
|
BTM_BLE_ISVALID_PARAM(scan_window, BTM_BLE_SCAN_WIN_MIN, BTM_BLE_SCAN_WIN_MAX)) {
|
|
if (p_ble_cb->scan_int != scan_interval) {
|
|
p_ble_cb->scan_int = scan_interval;
|
|
new_param = TRUE;
|
|
}
|
|
|
|
if (p_ble_cb->scan_win != scan_window) {
|
|
p_ble_cb->scan_win = scan_window;
|
|
new_param = TRUE;
|
|
}
|
|
|
|
if (new_param && p_ble_cb->conn_state == BLE_BG_CONN) {
|
|
btm_ble_suspend_bg_conn();
|
|
}
|
|
} else {
|
|
BTM_TRACE_ERROR("Illegal Connection Scan Parameters");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/********************************************************
|
|
**
|
|
** Function BTM_BleSetPrefConnParams
|
|
**
|
|
** Description Set a peripheral's preferred connection parameters
|
|
**
|
|
** Parameters: bd_addr - BD address of the peripheral
|
|
** scan_interval: scan interval
|
|
** scan_window: scan window
|
|
** min_conn_int - minimum preferred connection interval
|
|
** max_conn_int - maximum preferred connection interval
|
|
** slave_latency - preferred slave latency
|
|
** supervision_tout - preferred supervision timeout
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void BTM_BleSetPrefConnParams (BD_ADDR bd_addr,
|
|
UINT16 min_conn_int, UINT16 max_conn_int,
|
|
UINT16 slave_latency, UINT16 supervision_tout)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
|
|
|
|
BTM_TRACE_API ("BTM_BleSetPrefConnParams min: %u max: %u latency: %u \
|
|
tout: %u",
|
|
min_conn_int, max_conn_int, slave_latency, supervision_tout);
|
|
|
|
if (BTM_BLE_ISVALID_PARAM(min_conn_int, BTM_BLE_CONN_INT_MIN, BTM_BLE_CONN_INT_MAX) &&
|
|
BTM_BLE_ISVALID_PARAM(max_conn_int, BTM_BLE_CONN_INT_MIN, BTM_BLE_CONN_INT_MAX) &&
|
|
BTM_BLE_ISVALID_PARAM(supervision_tout, BTM_BLE_CONN_SUP_TOUT_MIN, BTM_BLE_CONN_SUP_TOUT_MAX) &&
|
|
(slave_latency <= BTM_BLE_CONN_LATENCY_MAX || slave_latency == BTM_BLE_CONN_PARAM_UNDEF)) {
|
|
if (p_dev_rec) {
|
|
/* expect conn int and stout and slave latency to be updated all together */
|
|
if (min_conn_int != BTM_BLE_CONN_PARAM_UNDEF || max_conn_int != BTM_BLE_CONN_PARAM_UNDEF) {
|
|
if (min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) {
|
|
p_dev_rec->conn_params.min_conn_int = min_conn_int;
|
|
} else {
|
|
p_dev_rec->conn_params.min_conn_int = max_conn_int;
|
|
}
|
|
|
|
if (max_conn_int != BTM_BLE_CONN_PARAM_UNDEF) {
|
|
p_dev_rec->conn_params.max_conn_int = max_conn_int;
|
|
} else {
|
|
p_dev_rec->conn_params.max_conn_int = min_conn_int;
|
|
}
|
|
|
|
if (slave_latency != BTM_BLE_CONN_PARAM_UNDEF) {
|
|
p_dev_rec->conn_params.slave_latency = slave_latency;
|
|
} else {
|
|
p_dev_rec->conn_params.slave_latency = BTM_BLE_CONN_SLAVE_LATENCY_DEF;
|
|
}
|
|
|
|
if (supervision_tout != BTM_BLE_CONN_PARAM_UNDEF) {
|
|
p_dev_rec->conn_params.supervision_tout = supervision_tout;
|
|
} else {
|
|
p_dev_rec->conn_params.supervision_tout = BTM_BLE_CONN_TIMEOUT_DEF;
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
BTM_TRACE_ERROR("Unknown Device, setting rejected");
|
|
}
|
|
} else {
|
|
BTM_TRACE_ERROR("Illegal Connection Parameters");
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_ReadDevInfo
|
|
**
|
|
** Description This function is called to read the device/address type
|
|
** of BD address.
|
|
**
|
|
** Parameter remote_bda: remote device address
|
|
** p_dev_type: output parameter to read the device type.
|
|
** p_addr_type: output parameter to read the address type.
|
|
**
|
|
*******************************************************************************/
|
|
void BTM_ReadDevInfo (BD_ADDR remote_bda, tBT_DEVICE_TYPE *p_dev_type, tBLE_ADDR_TYPE *p_addr_type)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (remote_bda);
|
|
tBTM_INQ_INFO *p_inq_info = BTM_InqDbRead(remote_bda);
|
|
|
|
*p_addr_type = BLE_ADDR_PUBLIC;
|
|
|
|
if (!p_dev_rec) {
|
|
*p_dev_type = BT_DEVICE_TYPE_BREDR;
|
|
/* Check with the BT manager if details about remote device are known */
|
|
if (p_inq_info != NULL) {
|
|
*p_dev_type = p_inq_info->results.device_type ;
|
|
*p_addr_type = p_inq_info->results.ble_addr_type;
|
|
} else {
|
|
/* unknown device, assume BR/EDR */
|
|
BTM_TRACE_DEBUG ("btm_find_dev_type - unknown device, BR/EDR assumed");
|
|
}
|
|
} else { /* there is a security device record exisitng */
|
|
/* new inquiry result, overwrite device type in security device record */
|
|
if (p_inq_info) {
|
|
p_dev_rec->device_type = p_inq_info->results.device_type;
|
|
p_dev_rec->ble.ble_addr_type = p_inq_info->results.ble_addr_type;
|
|
}
|
|
if (memcmp(p_dev_rec->bd_addr, remote_bda, BD_ADDR_LEN) == 0 &&
|
|
memcmp(p_dev_rec->ble.pseudo_addr, remote_bda, BD_ADDR_LEN) == 0) {
|
|
*p_dev_type = p_dev_rec->device_type;
|
|
*p_addr_type = p_dev_rec->ble.ble_addr_type;
|
|
} else if (memcmp(p_dev_rec->ble.pseudo_addr, remote_bda, BD_ADDR_LEN) == 0) {
|
|
*p_dev_type = BT_DEVICE_TYPE_BLE;
|
|
*p_addr_type = p_dev_rec->ble.ble_addr_type;
|
|
} else { /* matching static adddress only */
|
|
*p_dev_type = BT_DEVICE_TYPE_BREDR;
|
|
*p_addr_type = BLE_ADDR_PUBLIC;
|
|
}
|
|
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("btm_find_dev_type - device_type = %d addr_type = %d", *p_dev_type , *p_addr_type);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_ReadConnectedTransportAddress
|
|
**
|
|
** Description This function is called to read the paired device/address type of other device paired
|
|
** corresponding to the BD_address
|
|
**
|
|
** Parameter remote_bda: remote device address, carry out the transport address
|
|
** transport: active transport
|
|
**
|
|
** Return TRUE if an active link is identified; FALSE otherwise
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN BTM_ReadConnectedTransportAddress(BD_ADDR remote_bda, tBT_TRANSPORT transport)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(remote_bda);
|
|
|
|
/* if no device can be located, return */
|
|
if (p_dev_rec == NULL) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (transport == BT_TRANSPORT_BR_EDR) {
|
|
if (btm_bda_to_acl(p_dev_rec->bd_addr, transport) != NULL) {
|
|
memcpy(remote_bda, p_dev_rec->bd_addr, BD_ADDR_LEN);
|
|
return TRUE;
|
|
} else if (p_dev_rec->device_type & BT_DEVICE_TYPE_BREDR) {
|
|
memcpy(remote_bda, p_dev_rec->bd_addr, BD_ADDR_LEN);
|
|
} else {
|
|
memset(remote_bda, 0, BD_ADDR_LEN);
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
if (transport == BT_TRANSPORT_LE) {
|
|
memcpy(remote_bda, p_dev_rec->ble.pseudo_addr, BD_ADDR_LEN);
|
|
if (btm_bda_to_acl(p_dev_rec->ble.pseudo_addr, transport) != NULL) {
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_BleReceiverTest
|
|
**
|
|
** Description This function is called to start the LE Receiver test
|
|
**
|
|
** Parameter rx_freq - Frequency Range
|
|
** p_cmd_cmpl_cback - Command Complete callback
|
|
**
|
|
*******************************************************************************/
|
|
void BTM_BleReceiverTest(UINT8 rx_freq, tBTM_CMPL_CB *p_cmd_cmpl_cback)
|
|
{
|
|
btm_cb.devcb.p_le_test_cmd_cmpl_cb = p_cmd_cmpl_cback;
|
|
|
|
if (btsnd_hcic_ble_receiver_test(rx_freq) == FALSE) {
|
|
BTM_TRACE_ERROR("%s: Unable to Trigger LE receiver test", __FUNCTION__);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_BleTransmitterTest
|
|
**
|
|
** Description This function is called to start the LE Transmitter test
|
|
**
|
|
** Parameter tx_freq - Frequency Range
|
|
** test_data_len - Length in bytes of payload data in each packet
|
|
** packet_payload - Pattern to use in the payload
|
|
** p_cmd_cmpl_cback - Command Complete callback
|
|
**
|
|
*******************************************************************************/
|
|
void BTM_BleTransmitterTest(UINT8 tx_freq, UINT8 test_data_len,
|
|
UINT8 packet_payload, tBTM_CMPL_CB *p_cmd_cmpl_cback)
|
|
{
|
|
btm_cb.devcb.p_le_test_cmd_cmpl_cb = p_cmd_cmpl_cback;
|
|
if (btsnd_hcic_ble_transmitter_test(tx_freq, test_data_len, packet_payload) == FALSE) {
|
|
BTM_TRACE_ERROR("%s: Unable to Trigger LE transmitter test", __FUNCTION__);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_BleTestEnd
|
|
**
|
|
** Description This function is called to stop the in-progress TX or RX test
|
|
**
|
|
** Parameter p_cmd_cmpl_cback - Command complete callback
|
|
**
|
|
*******************************************************************************/
|
|
void BTM_BleTestEnd(tBTM_CMPL_CB *p_cmd_cmpl_cback)
|
|
{
|
|
btm_cb.devcb.p_le_test_cmd_cmpl_cb = p_cmd_cmpl_cback;
|
|
|
|
if (btsnd_hcic_ble_test_end() == FALSE) {
|
|
BTM_TRACE_ERROR("%s: Unable to End the LE TX/RX test", __FUNCTION__);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
** Internal Functions
|
|
*******************************************************************************/
|
|
void btm_ble_test_command_complete(UINT8 *p)
|
|
{
|
|
tBTM_CMPL_CB *p_cb = btm_cb.devcb.p_le_test_cmd_cmpl_cb;
|
|
|
|
btm_cb.devcb.p_le_test_cmd_cmpl_cb = NULL;
|
|
|
|
if (p_cb) {
|
|
(*p_cb)(p);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_UseLeLink
|
|
**
|
|
** Description This function is to select the underneath physical link to use.
|
|
**
|
|
** Returns TRUE to use LE, FALSE use BR/EDR.
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN BTM_UseLeLink (BD_ADDR bd_addr)
|
|
{
|
|
tACL_CONN *p;
|
|
tBT_DEVICE_TYPE dev_type;
|
|
tBLE_ADDR_TYPE addr_type;
|
|
BOOLEAN use_le = FALSE;
|
|
|
|
if ((p = btm_bda_to_acl(bd_addr, BT_TRANSPORT_BR_EDR)) != NULL) {
|
|
return use_le;
|
|
} else if ((p = btm_bda_to_acl(bd_addr, BT_TRANSPORT_LE)) != NULL) {
|
|
use_le = TRUE;
|
|
} else {
|
|
BTM_ReadDevInfo(bd_addr, &dev_type, &addr_type);
|
|
use_le = (dev_type == BT_DEVICE_TYPE_BLE);
|
|
}
|
|
return use_le;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_SetBleDataLength
|
|
**
|
|
** Description This function is to set maximum BLE transmission packet size
|
|
**
|
|
** Returns BTM_SUCCESS if success; otherwise failed.
|
|
**
|
|
*******************************************************************************/
|
|
tBTM_STATUS BTM_SetBleDataLength(BD_ADDR bd_addr, UINT16 tx_pdu_length)
|
|
{
|
|
tACL_CONN *p_acl = btm_bda_to_acl(bd_addr, BT_TRANSPORT_LE);
|
|
BTM_TRACE_DEBUG("%s: tx_pdu_length =%d", __FUNCTION__, tx_pdu_length);
|
|
|
|
if (!controller_get_interface()->supports_ble_packet_extension()) {
|
|
BTM_TRACE_ERROR("%s failed, request not supported", __FUNCTION__);
|
|
return BTM_CONTROL_LE_DATA_LEN_UNSUPPORTED;
|
|
}
|
|
|
|
if (!HCI_LE_DATA_LEN_EXT_SUPPORTED(p_acl->peer_le_features)) {
|
|
BTM_TRACE_DEBUG("%s failed, peer does not support request", __FUNCTION__);
|
|
return BTM_PEER_LE_DATA_LEN_UNSUPPORTED;
|
|
}
|
|
|
|
if (p_acl != NULL) {
|
|
if (tx_pdu_length > BTM_BLE_DATA_SIZE_MAX) {
|
|
tx_pdu_length = BTM_BLE_DATA_SIZE_MAX;
|
|
} else if (tx_pdu_length < BTM_BLE_DATA_SIZE_MIN) {
|
|
tx_pdu_length = BTM_BLE_DATA_SIZE_MIN;
|
|
}
|
|
|
|
/* always set the TxTime to be max, as controller does not care for now */
|
|
btsnd_hcic_ble_set_data_length(p_acl->hci_handle, tx_pdu_length,
|
|
BTM_BLE_DATA_TX_TIME_MAX);
|
|
|
|
return BTM_SUCCESS;
|
|
} else {
|
|
BTM_TRACE_ERROR("%s: Wrong mode: no LE link exist or LE not supported", __FUNCTION__);
|
|
return BTM_WRONG_MODE;
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_determine_security_act
|
|
**
|
|
** Description This function checks the security of current LE link
|
|
** and returns the appropriate action that needs to be
|
|
** taken to achieve the required security.
|
|
**
|
|
** Parameter is_originator - True if outgoing connection
|
|
** bdaddr: remote device address
|
|
** security_required: Security required for the service.
|
|
**
|
|
** Returns The appropriate security action required.
|
|
**
|
|
*******************************************************************************/
|
|
tBTM_SEC_ACTION btm_ble_determine_security_act(BOOLEAN is_originator, BD_ADDR bdaddr, UINT16 security_required)
|
|
{
|
|
tBTM_LE_AUTH_REQ auth_req = 0x00;
|
|
|
|
if (is_originator)
|
|
{
|
|
if ((security_required & BTM_SEC_OUT_FLAGS) == 0 &&
|
|
(security_required & BTM_SEC_OUT_MITM) == 0)
|
|
{
|
|
BTM_TRACE_DEBUG ("%s No security required for outgoing connection", __func__);
|
|
return BTM_SEC_OK;
|
|
}
|
|
|
|
if (security_required & BTM_SEC_OUT_MITM)
|
|
auth_req |= BTM_LE_AUTH_REQ_MITM;
|
|
}
|
|
else
|
|
{
|
|
if ((security_required & BTM_SEC_IN_FLAGS) == 0&& (security_required & BTM_SEC_IN_MITM) == 0)
|
|
{
|
|
BTM_TRACE_DEBUG ("%s No security required for incoming connection", __func__);
|
|
return BTM_SEC_OK;
|
|
}
|
|
|
|
if (security_required & BTM_SEC_IN_MITM)
|
|
auth_req |= BTM_LE_AUTH_REQ_MITM;
|
|
}
|
|
|
|
tBTM_BLE_SEC_REQ_ACT ble_sec_act;
|
|
btm_ble_link_sec_check(bdaddr, auth_req, &ble_sec_act);
|
|
|
|
BTM_TRACE_DEBUG ("%s ble_sec_act %d", __func__ , ble_sec_act);
|
|
|
|
if (ble_sec_act == BTM_BLE_SEC_REQ_ACT_DISCARD)
|
|
return BTM_SEC_ENC_PENDING;
|
|
|
|
if (ble_sec_act == BTM_BLE_SEC_REQ_ACT_NONE)
|
|
return BTM_SEC_OK;
|
|
|
|
UINT8 sec_flag = 0;
|
|
BTM_GetSecurityFlagsByTransport(bdaddr, &sec_flag, BT_TRANSPORT_LE);
|
|
|
|
BOOLEAN is_link_encrypted = FALSE;
|
|
BOOLEAN is_key_mitm = FALSE;
|
|
if (sec_flag & (BTM_SEC_FLAG_ENCRYPTED| BTM_SEC_FLAG_LKEY_KNOWN))
|
|
{
|
|
if (sec_flag & BTM_SEC_FLAG_ENCRYPTED)
|
|
is_link_encrypted = TRUE;
|
|
|
|
if (sec_flag & BTM_SEC_FLAG_LKEY_AUTHED)
|
|
is_key_mitm = TRUE;
|
|
}
|
|
|
|
if (auth_req & BTM_LE_AUTH_REQ_MITM)
|
|
{
|
|
if (!is_key_mitm)
|
|
{
|
|
return BTM_SEC_ENCRYPT_MITM;
|
|
} else {
|
|
if (is_link_encrypted)
|
|
return BTM_SEC_OK;
|
|
else
|
|
return BTM_SEC_ENCRYPT;
|
|
}
|
|
} else {
|
|
if (is_link_encrypted)
|
|
return BTM_SEC_OK;
|
|
else
|
|
return BTM_SEC_ENCRYPT_NO_MITM;
|
|
}
|
|
|
|
return BTM_SEC_OK;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_start_sec_check
|
|
**
|
|
** Description This function is to check and set the security required for
|
|
** LE link for LE COC.
|
|
**
|
|
** Parameter bdaddr: remote device address.
|
|
** psm : PSM of the LE COC sevice.
|
|
** is_originator: TRUE if outgoing connection.
|
|
** p_callback : Pointer to the callback function.
|
|
** p_ref_data : Pointer to be returned along with the callback.
|
|
**
|
|
** Returns TRUE if link already meets the required security; otherwise FALSE.
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN btm_ble_start_sec_check(BD_ADDR bd_addr, UINT16 psm, BOOLEAN is_originator,
|
|
tBTM_SEC_CALLBACK *p_callback, void *p_ref_data)
|
|
{
|
|
/* Find the service record for the PSM */
|
|
tBTM_SEC_SERV_REC *p_serv_rec = btm_sec_find_first_serv (is_originator, psm);
|
|
|
|
/* If there is no application registered with this PSM do not allow connection */
|
|
if (!p_serv_rec)
|
|
{
|
|
BTM_TRACE_WARNING ("%s PSM: %d no application registerd", __func__, psm);
|
|
(*p_callback) (bd_addr, BT_TRANSPORT_LE, p_ref_data, BTM_MODE_UNSUPPORTED);
|
|
return FALSE;
|
|
}
|
|
|
|
tBTM_SEC_ACTION sec_act = btm_ble_determine_security_act(is_originator,
|
|
bd_addr, p_serv_rec->security_flags);
|
|
|
|
tBTM_BLE_SEC_ACT ble_sec_act = BTM_BLE_SEC_NONE;
|
|
BOOLEAN status = FALSE;
|
|
|
|
switch (sec_act)
|
|
{
|
|
case BTM_SEC_OK:
|
|
BTM_TRACE_DEBUG ("%s Security met", __func__);
|
|
p_callback(bd_addr, BT_TRANSPORT_LE, p_ref_data, BTM_SUCCESS);
|
|
status = TRUE;
|
|
break;
|
|
|
|
case BTM_SEC_ENCRYPT:
|
|
BTM_TRACE_DEBUG ("%s Encryption needs to be done", __func__);
|
|
ble_sec_act = BTM_BLE_SEC_ENCRYPT;
|
|
break;
|
|
|
|
case BTM_SEC_ENCRYPT_MITM:
|
|
BTM_TRACE_DEBUG ("%s Pairing with MITM needs to be done", __func__);
|
|
ble_sec_act = BTM_BLE_SEC_ENCRYPT_MITM;
|
|
break;
|
|
|
|
case BTM_SEC_ENCRYPT_NO_MITM:
|
|
BTM_TRACE_DEBUG ("%s Pairing with No MITM needs to be done", __func__);
|
|
ble_sec_act = BTM_BLE_SEC_ENCRYPT_NO_MITM;
|
|
break;
|
|
|
|
case BTM_SEC_ENC_PENDING:
|
|
BTM_TRACE_DEBUG ("%s Ecryption pending", __func__);
|
|
break;
|
|
}
|
|
|
|
if (ble_sec_act == BTM_BLE_SEC_NONE)
|
|
return status;
|
|
|
|
tL2C_LCB *p_lcb = l2cu_find_lcb_by_bd_addr(bd_addr, BT_TRANSPORT_LE);
|
|
p_lcb->sec_act = sec_act;
|
|
BTM_SetEncryption(bd_addr, BT_TRANSPORT_LE, p_callback, p_ref_data);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_rand_enc_complete
|
|
**
|
|
** Description This function is the callback functions for HCI_Rand command
|
|
** and HCI_Encrypt command is completed.
|
|
** This message is received from the HCI.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
void btm_ble_rand_enc_complete (UINT8 *p, UINT16 op_code, tBTM_RAND_ENC_CB *p_enc_cplt_cback)
|
|
{
|
|
tBTM_RAND_ENC params;
|
|
UINT8 *p_dest = params.param_buf;
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_rand_enc_complete");
|
|
|
|
memset(¶ms, 0, sizeof(tBTM_RAND_ENC));
|
|
|
|
/* If there was a callback address for vcs complete, call it */
|
|
if (p_enc_cplt_cback && p) {
|
|
/* Pass paramters to the callback function */
|
|
STREAM_TO_UINT8(params.status, p); /* command status */
|
|
|
|
if (params.status == HCI_SUCCESS) {
|
|
params.opcode = op_code;
|
|
|
|
if (op_code == HCI_BLE_RAND) {
|
|
params.param_len = BT_OCTET8_LEN;
|
|
} else {
|
|
params.param_len = BT_OCTET16_LEN;
|
|
}
|
|
|
|
memcpy(p_dest, p, params.param_len); /* Fetch return info from HCI event message */
|
|
}
|
|
if (p_enc_cplt_cback) {
|
|
(*p_enc_cplt_cback)(¶ms); /* Call the Encryption complete callback function */
|
|
}
|
|
}
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_get_enc_key_type
|
|
**
|
|
** Description This function is to increment local sign counter
|
|
** Returns None
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
void btm_ble_increment_sign_ctr(BD_ADDR bd_addr, BOOLEAN is_local )
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec;
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_increment_sign_ctr is_local=%d", is_local);
|
|
|
|
if ((p_dev_rec = btm_find_dev (bd_addr)) != NULL) {
|
|
if (is_local) {
|
|
p_dev_rec->ble.keys.local_counter++;
|
|
} else {
|
|
p_dev_rec->ble.keys.counter++;
|
|
}
|
|
BTM_TRACE_DEBUG ("is_local=%d local sign counter=%d peer sign counter=%d",
|
|
is_local,
|
|
p_dev_rec->ble.keys.local_counter,
|
|
p_dev_rec->ble.keys.counter);
|
|
}
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_get_enc_key_type
|
|
**
|
|
** Description This function is to get the BLE key type that has been exchanged
|
|
** in betweem local device and peer device.
|
|
**
|
|
** Returns p_key_type: output parameter to carry the key type value.
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
BOOLEAN btm_ble_get_enc_key_type(BD_ADDR bd_addr, UINT8 *p_key_types)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec;
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_get_enc_key_type");
|
|
|
|
if ((p_dev_rec = btm_find_dev (bd_addr)) != NULL) {
|
|
*p_key_types = p_dev_rec->ble.key_type;
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_get_local_div
|
|
**
|
|
** Description This function is called to read the local DIV
|
|
**
|
|
** Returns TURE - if a valid DIV is availavle
|
|
*******************************************************************************/
|
|
BOOLEAN btm_get_local_div (BD_ADDR bd_addr, UINT16 *p_div)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec;
|
|
BOOLEAN status = FALSE;
|
|
BTM_TRACE_DEBUG ("btm_get_local_div");
|
|
|
|
BTM_TRACE_DEBUG("bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
|
|
bd_addr[0], bd_addr[1],
|
|
bd_addr[2], bd_addr[3],
|
|
bd_addr[4], bd_addr[5]);
|
|
|
|
*p_div = 0;
|
|
p_dev_rec = btm_find_dev (bd_addr);
|
|
|
|
if (p_dev_rec && p_dev_rec->ble.keys.div) {
|
|
status = TRUE;
|
|
*p_div = p_dev_rec->ble.keys.div;
|
|
}
|
|
BTM_TRACE_DEBUG ("btm_get_local_div status=%d (1-OK) DIV=0x%x", status, *p_div);
|
|
return status;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_sec_save_le_key
|
|
**
|
|
** Description This function is called by the SMP to update
|
|
** an BLE key. SMP is internal, whereas all the keys shall
|
|
** be sent to the application. The function is also called
|
|
** when application passes ble key stored in NVRAM to the btm_sec.
|
|
** pass_to_application parameter is false in this case.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_sec_save_le_key(BD_ADDR bd_addr, tBTM_LE_KEY_TYPE key_type, tBTM_LE_KEY_VALUE *p_keys,
|
|
BOOLEAN pass_to_application)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_rec;
|
|
tBTM_LE_EVT_DATA cb_data;
|
|
UINT8 i;
|
|
|
|
BTM_TRACE_DEBUG ("btm_sec_save_le_key key_type=0x%x pass_to_application=%d", key_type, pass_to_application);
|
|
/* Store the updated key in the device database */
|
|
|
|
BTM_TRACE_DEBUG("bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
|
|
bd_addr[0], bd_addr[1],
|
|
bd_addr[2], bd_addr[3],
|
|
bd_addr[4], bd_addr[5]);
|
|
|
|
if ((p_rec = btm_find_dev (bd_addr)) != NULL && (p_keys || key_type == BTM_LE_KEY_LID)) {
|
|
btm_ble_init_pseudo_addr (p_rec, bd_addr);
|
|
|
|
switch (key_type) {
|
|
case BTM_LE_KEY_PENC:
|
|
memcpy(p_rec->ble.keys.pltk, p_keys->penc_key.ltk, BT_OCTET16_LEN);
|
|
memcpy(p_rec->ble.keys.rand, p_keys->penc_key.rand, BT_OCTET8_LEN);
|
|
p_rec->ble.keys.sec_level = p_keys->penc_key.sec_level;
|
|
p_rec->ble.keys.ediv = p_keys->penc_key.ediv;
|
|
p_rec->ble.keys.key_size = p_keys->penc_key.key_size;
|
|
p_rec->ble.key_type |= BTM_LE_KEY_PENC;
|
|
p_rec->sec_flags |= BTM_SEC_LE_LINK_KEY_KNOWN;
|
|
if (p_keys->penc_key.sec_level == SMP_SEC_AUTHENTICATED) {
|
|
p_rec->sec_flags |= BTM_SEC_LE_LINK_KEY_AUTHED;
|
|
} else {
|
|
p_rec->sec_flags &= ~BTM_SEC_LE_LINK_KEY_AUTHED;
|
|
}
|
|
BTM_TRACE_DEBUG("BTM_LE_KEY_PENC key_type=0x%x sec_flags=0x%x sec_leve=0x%x",
|
|
p_rec->ble.key_type,
|
|
p_rec->sec_flags,
|
|
p_rec->ble.keys.sec_level);
|
|
break;
|
|
|
|
case BTM_LE_KEY_PID:
|
|
for (i = 0; i < BT_OCTET16_LEN; i++) {
|
|
p_rec->ble.keys.irk[i] = p_keys->pid_key.irk[i];
|
|
}
|
|
|
|
//memcpy( p_rec->ble.keys.irk, p_keys->pid_key, BT_OCTET16_LEN); todo will crash the system
|
|
memcpy(p_rec->ble.static_addr, p_keys->pid_key.static_addr, BD_ADDR_LEN);
|
|
p_rec->ble.static_addr_type = p_keys->pid_key.addr_type;
|
|
p_rec->ble.key_type |= BTM_LE_KEY_PID;
|
|
BTM_TRACE_DEBUG("BTM_LE_KEY_PID key_type=0x%x save peer IRK", p_rec->ble.key_type);
|
|
/* update device record address as static address */
|
|
memcpy(p_rec->bd_addr, p_keys->pid_key.static_addr, BD_ADDR_LEN);
|
|
/* combine DUMO device security record if needed */
|
|
btm_consolidate_dev(p_rec);
|
|
break;
|
|
|
|
case BTM_LE_KEY_PCSRK:
|
|
memcpy(p_rec->ble.keys.pcsrk, p_keys->pcsrk_key.csrk, BT_OCTET16_LEN);
|
|
p_rec->ble.keys.srk_sec_level = p_keys->pcsrk_key.sec_level;
|
|
p_rec->ble.keys.counter = p_keys->pcsrk_key.counter;
|
|
p_rec->ble.key_type |= BTM_LE_KEY_PCSRK;
|
|
p_rec->sec_flags |= BTM_SEC_LE_LINK_KEY_KNOWN;
|
|
if ( p_keys->pcsrk_key.sec_level == SMP_SEC_AUTHENTICATED) {
|
|
p_rec->sec_flags |= BTM_SEC_LE_LINK_KEY_AUTHED;
|
|
} else {
|
|
p_rec->sec_flags &= ~BTM_SEC_LE_LINK_KEY_AUTHED;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG("BTM_LE_KEY_PCSRK key_type=0x%x sec_flags=0x%x sec_level=0x%x peer_counter=%d",
|
|
p_rec->ble.key_type,
|
|
p_rec->sec_flags,
|
|
p_rec->ble.keys.srk_sec_level,
|
|
p_rec->ble.keys.counter );
|
|
break;
|
|
|
|
case BTM_LE_KEY_LENC:
|
|
memcpy(p_rec->ble.keys.lltk, p_keys->lenc_key.ltk, BT_OCTET16_LEN);
|
|
p_rec->ble.keys.div = p_keys->lenc_key.div; /* update DIV */
|
|
p_rec->ble.keys.sec_level = p_keys->lenc_key.sec_level;
|
|
p_rec->ble.keys.key_size = p_keys->lenc_key.key_size;
|
|
p_rec->ble.key_type |= BTM_LE_KEY_LENC;
|
|
|
|
BTM_TRACE_DEBUG("BTM_LE_KEY_LENC key_type=0x%x DIV=0x%x key_size=0x%x sec_level=0x%x",
|
|
p_rec->ble.key_type,
|
|
p_rec->ble.keys.div,
|
|
p_rec->ble.keys.key_size,
|
|
p_rec->ble.keys.sec_level );
|
|
break;
|
|
|
|
case BTM_LE_KEY_LCSRK:/* local CSRK has been delivered */
|
|
memcpy (p_rec->ble.keys.lcsrk, p_keys->lcsrk_key.csrk, BT_OCTET16_LEN);
|
|
p_rec->ble.keys.div = p_keys->lcsrk_key.div; /* update DIV */
|
|
p_rec->ble.keys.local_csrk_sec_level = p_keys->lcsrk_key.sec_level;
|
|
p_rec->ble.keys.local_counter = p_keys->lcsrk_key.counter;
|
|
p_rec->ble.key_type |= BTM_LE_KEY_LCSRK;
|
|
BTM_TRACE_DEBUG("BTM_LE_KEY_LCSRK key_type=0x%x DIV=0x%x scrk_sec_level=0x%x local_counter=%d",
|
|
p_rec->ble.key_type,
|
|
p_rec->ble.keys.div,
|
|
p_rec->ble.keys.local_csrk_sec_level,
|
|
p_rec->ble.keys.local_counter );
|
|
break;
|
|
|
|
case BTM_LE_KEY_LID:
|
|
p_rec->ble.key_type |= BTM_LE_KEY_LID;
|
|
break;
|
|
default:
|
|
BTM_TRACE_WARNING("btm_sec_save_le_key (Bad key_type 0x%02x)", key_type);
|
|
return;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("BLE key type 0x%02x updated for BDA: %08x%04x (btm_sec_save_le_key)", key_type,
|
|
(bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
|
|
(bd_addr[4] << 8) + bd_addr[5]);
|
|
|
|
/* Notify the application that one of the BLE keys has been updated
|
|
If link key is in progress, it will get sent later.*/
|
|
if (pass_to_application && btm_cb.api.p_le_callback) {
|
|
cb_data.key.p_key_value = p_keys;
|
|
cb_data.key.key_type = key_type;
|
|
|
|
(*btm_cb.api.p_le_callback) (BTM_LE_KEY_EVT, bd_addr, &cb_data);
|
|
}
|
|
return;
|
|
}
|
|
|
|
BTM_TRACE_WARNING ("BLE key type 0x%02x called for Unknown BDA or type: %08x%04x !! (btm_sec_save_le_key)", key_type,
|
|
(bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
|
|
(bd_addr[4] << 8) + bd_addr[5]);
|
|
|
|
if (p_rec) {
|
|
BTM_TRACE_DEBUG ("sec_flags=0x%x", p_rec->sec_flags);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_update_sec_key_size
|
|
**
|
|
** Description update the current lin kencryption key size
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_update_sec_key_size(BD_ADDR bd_addr, UINT8 enc_key_size)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_rec;
|
|
|
|
BTM_TRACE_DEBUG("btm_ble_update_sec_key_size enc_key_size = %d", enc_key_size);
|
|
|
|
if ((p_rec = btm_find_dev (bd_addr)) != NULL ) {
|
|
p_rec->enc_key_size = enc_key_size;
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_read_sec_key_size
|
|
**
|
|
** Description update the current lin kencryption key size
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
UINT8 btm_ble_read_sec_key_size(BD_ADDR bd_addr)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_rec;
|
|
|
|
if ((p_rec = btm_find_dev (bd_addr)) != NULL ) {
|
|
return p_rec->enc_key_size;
|
|
} else {
|
|
return 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_link_sec_check
|
|
**
|
|
** Description Check BLE link security level match.
|
|
**
|
|
** Returns TRUE: check is OK and the *p_sec_req_act contain the action
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_link_sec_check(BD_ADDR bd_addr, tBTM_LE_AUTH_REQ auth_req, tBTM_BLE_SEC_REQ_ACT *p_sec_req_act)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
|
|
UINT8 req_sec_level = BTM_LE_SEC_NONE, cur_sec_level = BTM_LE_SEC_NONE;
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_link_sec_check auth_req =0x%x", auth_req);
|
|
|
|
if (p_dev_rec == NULL) {
|
|
BTM_TRACE_ERROR ("btm_ble_link_sec_check received for unknown device");
|
|
return;
|
|
}
|
|
|
|
if (p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING ||
|
|
p_dev_rec->sec_state == BTM_SEC_STATE_AUTHENTICATING) {
|
|
/* race condition: discard the security request while master is encrypting the link */
|
|
*p_sec_req_act = BTM_BLE_SEC_REQ_ACT_DISCARD;
|
|
} else {
|
|
req_sec_level = BTM_LE_SEC_UNAUTHENTICATE;
|
|
if (auth_req & BTM_LE_AUTH_REQ_MITM) {
|
|
req_sec_level = BTM_LE_SEC_AUTHENTICATED;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("dev_rec sec_flags=0x%x", p_dev_rec->sec_flags);
|
|
|
|
/* currently encrpted */
|
|
if (p_dev_rec->sec_flags & BTM_SEC_LE_ENCRYPTED) {
|
|
if (p_dev_rec->sec_flags & BTM_SEC_LE_AUTHENTICATED) {
|
|
cur_sec_level = BTM_LE_SEC_AUTHENTICATED;
|
|
} else {
|
|
cur_sec_level = BTM_LE_SEC_UNAUTHENTICATE;
|
|
}
|
|
} else { /* unencrypted link */
|
|
/* if bonded, get the key security level */
|
|
if (p_dev_rec->ble.key_type & BTM_LE_KEY_PENC) {
|
|
cur_sec_level = p_dev_rec->ble.keys.sec_level;
|
|
} else {
|
|
cur_sec_level = BTM_LE_SEC_NONE;
|
|
}
|
|
}
|
|
|
|
if (cur_sec_level >= req_sec_level) {
|
|
/* To avoid re-encryption on an encrypted link for an equal condition encryption */
|
|
*p_sec_req_act = BTM_BLE_SEC_REQ_ACT_ENCRYPT;
|
|
} else {
|
|
*p_sec_req_act = BTM_BLE_SEC_REQ_ACT_PAIR; /* start the pariring process to upgrade the keys*/
|
|
}
|
|
}
|
|
|
|
BTM_TRACE_DEBUG("cur_sec_level=%d req_sec_level=%d sec_req_act=%d",
|
|
cur_sec_level,
|
|
req_sec_level,
|
|
*p_sec_req_act);
|
|
|
|
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_set_encryption
|
|
**
|
|
** Description This function is called to ensure that LE connection is
|
|
** encrypted. Should be called only on an open connection.
|
|
** Typically only needed for connections that first want to
|
|
** bring up unencrypted links, then later encrypt them.
|
|
**
|
|
** Returns void
|
|
** the local device ER is copied into er
|
|
**
|
|
*******************************************************************************/
|
|
tBTM_STATUS btm_ble_set_encryption (BD_ADDR bd_addr, void *p_ref_data, UINT8 link_role)
|
|
{
|
|
tBTM_STATUS cmd = BTM_NO_RESOURCES;
|
|
#if (SMP_INCLUDED == TRUE)
|
|
tBTM_BLE_SEC_ACT sec_act = *(tBTM_BLE_SEC_ACT *)p_ref_data ;
|
|
tBTM_SEC_DEV_REC *p_rec = btm_find_dev (bd_addr);
|
|
tBTM_BLE_SEC_REQ_ACT sec_req_act;
|
|
tBTM_LE_AUTH_REQ auth_req;
|
|
|
|
if (p_rec == NULL) {
|
|
BTM_TRACE_WARNING ("btm_ble_set_encryption (NULL device record!! sec_act=0x%x", sec_act);
|
|
return (BTM_WRONG_MODE);
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_set_encryption sec_act=0x%x role_master=%d", sec_act, p_rec->role_master);
|
|
|
|
if (sec_act == BTM_BLE_SEC_ENCRYPT_MITM) {
|
|
p_rec->security_required |= BTM_SEC_IN_MITM;
|
|
}
|
|
|
|
switch (sec_act) {
|
|
case BTM_BLE_SEC_ENCRYPT:
|
|
if (link_role == BTM_ROLE_MASTER) {
|
|
/* start link layer encryption using the security info stored */
|
|
cmd = btm_ble_start_encrypt(bd_addr, FALSE, NULL);
|
|
break;
|
|
}
|
|
/* if salve role then fall through to call SMP_Pair below which will send a
|
|
sec_request to request the master to encrypt the link */
|
|
case BTM_BLE_SEC_ENCRYPT_NO_MITM:
|
|
case BTM_BLE_SEC_ENCRYPT_MITM:
|
|
if (link_role == BTM_ROLE_MASTER) {
|
|
auth_req = (sec_act == BTM_BLE_SEC_ENCRYPT_NO_MITM)
|
|
? SMP_AUTH_GEN_BOND : (SMP_AUTH_GEN_BOND | SMP_AUTH_YN_BIT);
|
|
btm_ble_link_sec_check (bd_addr, auth_req, &sec_req_act);
|
|
|
|
if (sec_req_act == BTM_BLE_SEC_REQ_ACT_ENCRYPT) {
|
|
cmd = btm_ble_start_encrypt(bd_addr, FALSE, NULL);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (SMP_Pair(bd_addr) == SMP_STARTED) {
|
|
cmd = BTM_CMD_STARTED;
|
|
p_rec->sec_state = BTM_SEC_STATE_AUTHENTICATING;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
cmd = BTM_WRONG_MODE;
|
|
break;
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
return cmd;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_ltk_request
|
|
**
|
|
** Description This function is called when encryption request is received
|
|
** on a slave device.
|
|
**
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
void btm_ble_ltk_request(UINT16 handle, UINT8 rand[8], UINT16 ediv)
|
|
{
|
|
tBTM_CB *p_cb = &btm_cb;
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev_by_handle (handle);
|
|
BT_OCTET8 dummy_stk = {0};
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_ltk_request");
|
|
|
|
p_cb->ediv = ediv;
|
|
|
|
memcpy(p_cb->enc_rand, rand, BT_OCTET8_LEN);
|
|
|
|
if (p_dev_rec != NULL) {
|
|
if (!smp_proc_ltk_request(p_dev_rec->bd_addr)) {
|
|
btm_ble_ltk_request_reply(p_dev_rec->bd_addr, FALSE, dummy_stk);
|
|
}
|
|
}
|
|
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_start_encrypt
|
|
**
|
|
** Description This function is called to start LE encryption.
|
|
**
|
|
**
|
|
** Returns BTM_SUCCESS if encryption was started successfully
|
|
**
|
|
*******************************************************************************/
|
|
tBTM_STATUS btm_ble_start_encrypt(BD_ADDR bda, BOOLEAN use_stk, BT_OCTET16 stk)
|
|
{
|
|
#if (SMP_INCLUDED == TRUE)
|
|
tBTM_CB *p_cb = &btm_cb;
|
|
tBTM_SEC_DEV_REC *p_rec = btm_find_dev (bda);
|
|
BT_OCTET8 dummy_rand = {0};
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
tBTM_STATUS rt = BTM_NO_RESOURCES;
|
|
#if (SMP_INCLUDED == TRUE)
|
|
BTM_TRACE_DEBUG ("btm_ble_start_encrypt");
|
|
|
|
if (!p_rec ) {
|
|
BTM_TRACE_ERROR("Link is not active, can not encrypt!");
|
|
return BTM_WRONG_MODE;
|
|
}
|
|
|
|
if (p_rec->sec_state == BTM_SEC_STATE_ENCRYPTING) {
|
|
BTM_TRACE_WARNING("Link Encryption is active, Busy!");
|
|
return BTM_BUSY;
|
|
}
|
|
|
|
p_cb->enc_handle = p_rec->ble_hci_handle;
|
|
|
|
if (use_stk) {
|
|
if (btsnd_hcic_ble_start_enc(p_rec->ble_hci_handle, dummy_rand, 0, stk)) {
|
|
rt = BTM_CMD_STARTED;
|
|
}
|
|
} else if (p_rec->ble.key_type & BTM_LE_KEY_PENC) {
|
|
if (btsnd_hcic_ble_start_enc(p_rec->ble_hci_handle, p_rec->ble.keys.rand,
|
|
p_rec->ble.keys.ediv, p_rec->ble.keys.pltk)) {
|
|
rt = BTM_CMD_STARTED;
|
|
}
|
|
} else {
|
|
BTM_TRACE_ERROR("No key available to encrypt the link");
|
|
}
|
|
if (rt == BTM_CMD_STARTED) {
|
|
if (p_rec->sec_state == BTM_SEC_STATE_IDLE) {
|
|
p_rec->sec_state = BTM_SEC_STATE_ENCRYPTING;
|
|
}
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
return rt;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_link_encrypted
|
|
**
|
|
** Description This function is called when LE link encrption status is changed.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
void btm_ble_link_encrypted(BD_ADDR bd_addr, UINT8 encr_enable)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
|
|
BOOLEAN enc_cback;
|
|
|
|
if (!p_dev_rec) {
|
|
BTM_TRACE_WARNING ("btm_ble_link_encrypted (No Device Found!) encr_enable=%d", encr_enable);
|
|
return;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_link_encrypted encr_enable=%d", encr_enable);
|
|
|
|
enc_cback = (p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING);
|
|
|
|
smp_link_encrypted(bd_addr, encr_enable);
|
|
|
|
BTM_TRACE_DEBUG(" p_dev_rec->sec_flags=0x%x", p_dev_rec->sec_flags);
|
|
|
|
if (encr_enable && p_dev_rec->enc_key_size == 0) {
|
|
p_dev_rec->enc_key_size = p_dev_rec->ble.keys.key_size;
|
|
}
|
|
|
|
p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
|
|
if (p_dev_rec->p_callback && enc_cback) {
|
|
if (encr_enable) {
|
|
btm_sec_dev_rec_cback_event(p_dev_rec, BTM_SUCCESS, TRUE);
|
|
} else if (p_dev_rec->role_master) {
|
|
btm_sec_dev_rec_cback_event(p_dev_rec, BTM_ERR_PROCESSING, TRUE);
|
|
}
|
|
|
|
}
|
|
/* to notify GATT to send data if any request is pending */
|
|
gatt_notify_enc_cmpl(p_dev_rec->ble.pseudo_addr);
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_ltk_request_reply
|
|
**
|
|
** Description This function is called to send a LTK request reply on a slave
|
|
** device.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
void btm_ble_ltk_request_reply(BD_ADDR bda, BOOLEAN use_stk, BT_OCTET16 stk)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_rec = btm_find_dev (bda);
|
|
tBTM_CB *p_cb = &btm_cb;
|
|
|
|
if (p_rec == NULL) {
|
|
BTM_TRACE_ERROR("btm_ble_ltk_request_reply received for unknown device");
|
|
return;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_ltk_request_reply");
|
|
p_cb->enc_handle = p_rec->ble_hci_handle;
|
|
p_cb->key_size = p_rec->ble.keys.key_size;
|
|
|
|
BTM_TRACE_DEBUG("key size = %d", p_rec->ble.keys.key_size);
|
|
if (use_stk) {
|
|
btsnd_hcic_ble_ltk_req_reply(btm_cb.enc_handle, stk);
|
|
} else { /* calculate LTK using peer device */
|
|
if (p_rec->ble.key_type & BTM_LE_KEY_LENC) {
|
|
btsnd_hcic_ble_ltk_req_reply(btm_cb.enc_handle, p_rec->ble.keys.lltk);
|
|
} else {
|
|
btsnd_hcic_ble_ltk_req_neg_reply(btm_cb.enc_handle);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_io_capabilities_req
|
|
**
|
|
** Description This function is called to handle SMP get IO capability request.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
UINT8 btm_ble_io_capabilities_req(tBTM_SEC_DEV_REC *p_dev_rec, tBTM_LE_IO_REQ *p_data)
|
|
{
|
|
UINT8 callback_rc = BTM_SUCCESS;
|
|
BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req");
|
|
if (btm_cb.api.p_le_callback) {
|
|
/* the callback function implementation may change the IO capability... */
|
|
callback_rc = (*btm_cb.api.p_le_callback) (BTM_LE_IO_REQ_EVT, p_dev_rec->bd_addr, (tBTM_LE_EVT_DATA *)p_data);
|
|
}
|
|
#if BTM_OOB_INCLUDED == TRUE
|
|
if ((callback_rc == BTM_SUCCESS) || (BTM_OOB_UNKNOWN != p_data->oob_data))
|
|
#else
|
|
if (callback_rc == BTM_SUCCESS)
|
|
#endif
|
|
{
|
|
#if BTM_BLE_CONFORMANCE_TESTING == TRUE
|
|
if (btm_cb.devcb.keep_rfu_in_auth_req) {
|
|
BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req keep_rfu_in_auth_req = %u",
|
|
btm_cb.devcb.keep_rfu_in_auth_req);
|
|
p_data->auth_req &= BTM_LE_AUTH_REQ_MASK_KEEP_RFU;
|
|
btm_cb.devcb.keep_rfu_in_auth_req = FALSE;
|
|
} else {
|
|
/* default */
|
|
p_data->auth_req &= BTM_LE_AUTH_REQ_MASK;
|
|
}
|
|
#else
|
|
p_data->auth_req &= BTM_LE_AUTH_REQ_MASK;
|
|
#endif
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 1: p_dev_rec->security_required = %d auth_req:%d",
|
|
p_dev_rec->security_required, p_data->auth_req);
|
|
BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 2: i_keys=0x%x r_keys=0x%x (bit 0-LTK 1-IRK 2-CSRK)",
|
|
p_data->init_keys,
|
|
p_data->resp_keys);
|
|
|
|
/* if authentication requires MITM protection, put on the mask */
|
|
if (p_dev_rec->security_required & BTM_SEC_IN_MITM) {
|
|
p_data->auth_req |= BTM_LE_AUTH_REQ_MITM;
|
|
}
|
|
|
|
if (!(p_data->auth_req & SMP_AUTH_BOND)) {
|
|
BTM_TRACE_DEBUG("Non bonding: No keys should be exchanged");
|
|
p_data->init_keys = 0;
|
|
p_data->resp_keys = 0;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 3: auth_req:%d\n", p_data->auth_req);
|
|
BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 4: i_keys=0x%x r_keys=0x%x\n",
|
|
p_data->init_keys,
|
|
p_data->resp_keys);
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 5: p_data->io_cap = %d auth_req:%d\n",
|
|
p_data->io_cap, p_data->auth_req);
|
|
|
|
/* remove MITM protection requirement if IO cap does not allow it */
|
|
if ((p_data->io_cap == BTM_IO_CAP_NONE) && p_data->oob_data == SMP_OOB_NONE) {
|
|
p_data->auth_req &= ~BTM_LE_AUTH_REQ_MITM;
|
|
}
|
|
|
|
if (!(p_data->auth_req & SMP_SC_SUPPORT_BIT)) {
|
|
/* if Secure Connections are not supported then remove LK derivation,
|
|
** and keypress notifications.
|
|
*/
|
|
BTM_TRACE_DEBUG("%s-SC not supported -> No LK derivation, no keypress notifications",
|
|
__func__);
|
|
p_data->auth_req &= ~SMP_KP_SUPPORT_BIT;
|
|
p_data->init_keys &= ~SMP_SEC_KEY_TYPE_LK;
|
|
p_data->resp_keys &= ~SMP_SEC_KEY_TYPE_LK;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_io_capabilities_req 6: IO_CAP:%d oob_data:%d auth_req:0x%02x\n",
|
|
p_data->io_cap, p_data->oob_data, p_data->auth_req);
|
|
}
|
|
return callback_rc;
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_br_keys_req
|
|
**
|
|
** Description This function is called to handle SMP request for keys sent
|
|
** over BR/EDR.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
UINT8 btm_ble_br_keys_req(tBTM_SEC_DEV_REC *p_dev_rec, tBTM_LE_IO_REQ *p_data)
|
|
{
|
|
UINT8 callback_rc = BTM_SUCCESS;
|
|
BTM_TRACE_DEBUG ("%s\n", __func__);
|
|
if (btm_cb.api.p_le_callback) {
|
|
/* the callback function implementation may change the IO capability... */
|
|
callback_rc = (*btm_cb.api.p_le_callback) (BTM_LE_IO_REQ_EVT, p_dev_rec->bd_addr,
|
|
(tBTM_LE_EVT_DATA *)p_data);
|
|
}
|
|
return callback_rc;
|
|
}
|
|
#endif ///SMP_INCLUDED
|
|
|
|
|
|
#if (BLE_PRIVACY_SPT == TRUE )
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_resolve_random_addr_on_conn_cmpl
|
|
**
|
|
** Description resolve random address complete on connection complete event.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static void btm_ble_resolve_random_addr_on_conn_cmpl(void *p_rec, void *p_data)
|
|
{
|
|
UINT8 *p = (UINT8 *)p_data;
|
|
tBTM_SEC_DEV_REC *match_rec = (tBTM_SEC_DEV_REC *) p_rec;
|
|
UINT8 role, bda_type;
|
|
UINT16 handle;
|
|
BD_ADDR bda, local_rpa, peer_rpa;
|
|
UINT16 conn_interval, conn_latency, conn_timeout;
|
|
BOOLEAN match = FALSE;
|
|
|
|
++p;
|
|
STREAM_TO_UINT16 (handle, p);
|
|
STREAM_TO_UINT8 (role, p);
|
|
STREAM_TO_UINT8 (bda_type, p);
|
|
STREAM_TO_BDADDR (bda, p);
|
|
// if the enhanced is true, means the connection is enhanced connect,
|
|
// so the packet should include the local Resolvable Private Address and Peer Resolvable Private Address
|
|
if(temp_enhanced) {
|
|
STREAM_TO_BDADDR(local_rpa, p);
|
|
STREAM_TO_BDADDR(peer_rpa, p);
|
|
}
|
|
STREAM_TO_UINT16 (conn_interval, p);
|
|
STREAM_TO_UINT16 (conn_latency, p);
|
|
STREAM_TO_UINT16 (conn_timeout, p);
|
|
|
|
handle = HCID_GET_HANDLE (handle);
|
|
BTM_TRACE_EVENT ("%s\n", __func__);
|
|
|
|
if (match_rec) {
|
|
BTM_TRACE_DEBUG("%s matched and resolved random address", __func__);
|
|
match = TRUE;
|
|
match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA;
|
|
memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
|
|
if (!btm_ble_init_pseudo_addr (match_rec, bda)) {
|
|
/* assign the original address to be the current report address */
|
|
memcpy(bda, match_rec->ble.pseudo_addr, BD_ADDR_LEN);
|
|
} else {
|
|
memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN);
|
|
}
|
|
} else {
|
|
BTM_TRACE_DEBUG("%s unable to match and resolve random address", __func__);
|
|
}
|
|
|
|
btm_ble_connected(bda, handle, HCI_ENCRYPT_MODE_DISABLED, role, bda_type, match);
|
|
|
|
l2cble_conn_comp (handle, role, bda, bda_type, conn_interval,
|
|
conn_latency, conn_timeout);
|
|
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_connected
|
|
**
|
|
** Description This function is when a LE connection to the peer device is
|
|
** establsihed
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_connected (UINT8 *bda, UINT16 handle, UINT8 enc_mode, UINT8 role,
|
|
tBLE_ADDR_TYPE addr_type, BOOLEAN addr_matched)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bda);
|
|
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
|
|
UNUSED(addr_matched);
|
|
|
|
BTM_TRACE_EVENT ("btm_ble_connected");
|
|
|
|
/* Commenting out trace due to obf/compilation problems.
|
|
*/
|
|
#if (BT_USE_TRACES == TRUE)
|
|
if (p_dev_rec) {
|
|
BTM_TRACE_EVENT ("Security Manager: btm_ble_connected : handle:%d enc_mode:%d bda:%x RName:%s",
|
|
handle, enc_mode,
|
|
(bda[2] << 24) + (bda[3] << 16) + (bda[4] << 8) + bda[5],
|
|
p_dev_rec->sec_bd_name);
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_connected sec_flags=0x%x", p_dev_rec->sec_flags);
|
|
} else {
|
|
BTM_TRACE_EVENT ("Security Manager: btm_ble_connected: handle:%d enc_mode:%d bda:%x ",
|
|
handle, enc_mode,
|
|
(bda[2] << 24) + (bda[3] << 16) + (bda[4] << 8) + bda[5]);
|
|
}
|
|
#endif
|
|
|
|
if (!p_dev_rec) {
|
|
/* There is no device record for new connection. Allocate one */
|
|
if ((p_dev_rec = btm_sec_alloc_dev (bda)) == NULL) {
|
|
return;
|
|
}
|
|
} else { /* Update the timestamp for this device */
|
|
p_dev_rec->timestamp = btm_cb.dev_rec_count++;
|
|
}
|
|
|
|
/* update device information */
|
|
p_dev_rec->device_type |= BT_DEVICE_TYPE_BLE;
|
|
p_dev_rec->ble_hci_handle = handle;
|
|
p_dev_rec->ble.ble_addr_type = addr_type;
|
|
/* update pseudo address */
|
|
memcpy(p_dev_rec->ble.pseudo_addr, bda, BD_ADDR_LEN);
|
|
|
|
p_dev_rec->role_master = FALSE;
|
|
if (role == HCI_ROLE_MASTER) {
|
|
p_dev_rec->role_master = TRUE;
|
|
}
|
|
|
|
#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
|
|
if (!addr_matched) {
|
|
p_dev_rec->ble.active_addr_type = BTM_BLE_ADDR_PSEUDO;
|
|
}
|
|
|
|
if (p_dev_rec->ble.ble_addr_type == BLE_ADDR_RANDOM && !addr_matched) {
|
|
memcpy(p_dev_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
|
|
}
|
|
#endif
|
|
|
|
p_cb->inq_var.directed_conn = BTM_BLE_CONNECT_EVT;
|
|
|
|
return;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
** Function btm_ble_conn_complete
|
|
**
|
|
** Description LE connection complete.
|
|
**
|
|
******************************************************************************/
|
|
void btm_ble_conn_complete(UINT8 *p, UINT16 evt_len, BOOLEAN enhanced)
|
|
{
|
|
#if (BLE_PRIVACY_SPT == TRUE )
|
|
UINT8 *p_data = p, peer_addr_type;
|
|
#endif ///BLE_PRIVACY_SPT == TRUE
|
|
UINT8 role, status, bda_type;
|
|
UINT16 handle;
|
|
BD_ADDR bda;
|
|
#if (BLE_PRIVACY_SPT == TRUE)
|
|
BD_ADDR local_rpa, peer_rpa;
|
|
#endif ///BLE_PRIVACY_SPT == TRUE
|
|
UINT16 conn_interval, conn_latency, conn_timeout;
|
|
BOOLEAN match = FALSE;
|
|
UNUSED(evt_len);
|
|
STREAM_TO_UINT8 (status, p);
|
|
STREAM_TO_UINT16 (handle, p);
|
|
STREAM_TO_UINT8 (role, p);
|
|
STREAM_TO_UINT8 (bda_type, p);
|
|
STREAM_TO_BDADDR (bda, p);
|
|
BTM_TRACE_DEBUG("status = %d, handle = %d, role = %d, bda_type = %d",status,handle,role,bda_type);
|
|
if (status == 0) {
|
|
#if (BLE_PRIVACY_SPT == TRUE )
|
|
peer_addr_type = bda_type;
|
|
match = btm_identity_addr_to_random_pseudo (bda, &bda_type, TRUE);
|
|
|
|
if (enhanced) {
|
|
STREAM_TO_BDADDR (local_rpa, p);
|
|
STREAM_TO_BDADDR (peer_rpa, p);
|
|
}
|
|
|
|
/* possiblly receive connection complete with resolvable random on
|
|
slave role while the device has been paired */
|
|
if (!match && role == HCI_ROLE_SLAVE && BTM_BLE_IS_RESOLVE_BDA(bda)) {
|
|
// save the enhanced value to used in btm_ble_resolve_random_addr_on_conn_cmpl func.
|
|
temp_enhanced = enhanced;
|
|
btm_ble_resolve_random_addr(bda, btm_ble_resolve_random_addr_on_conn_cmpl, p_data);
|
|
// set back the temp enhanced to default after used.
|
|
temp_enhanced = FALSE;
|
|
} else
|
|
#endif
|
|
{
|
|
STREAM_TO_UINT16 (conn_interval, p);
|
|
STREAM_TO_UINT16 (conn_latency, p);
|
|
STREAM_TO_UINT16 (conn_timeout, p);
|
|
handle = HCID_GET_HANDLE (handle);
|
|
|
|
btm_ble_connected(bda, handle, HCI_ENCRYPT_MODE_DISABLED, role, bda_type, match);
|
|
|
|
l2cble_conn_comp (handle, role, bda, bda_type, conn_interval,
|
|
conn_latency, conn_timeout);
|
|
|
|
#if (BLE_PRIVACY_SPT == TRUE)
|
|
if (enhanced) {
|
|
btm_ble_refresh_local_resolvable_private_addr(bda, local_rpa);
|
|
|
|
if (peer_addr_type & BLE_ADDR_TYPE_ID_BIT) {
|
|
btm_ble_refresh_peer_resolvable_private_addr(bda, peer_rpa, BLE_ADDR_RANDOM);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
} else {
|
|
role = HCI_ROLE_UNKNOWN;
|
|
if (status != HCI_ERR_DIRECTED_ADVERTISING_TIMEOUT) {
|
|
btm_ble_set_conn_st(BLE_CONN_IDLE);
|
|
#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
|
|
btm_ble_disable_resolving_list(BTM_BLE_RL_INIT, TRUE);
|
|
#endif
|
|
} else {
|
|
#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
|
|
btm_cb.ble_ctr_cb.inq_var.adv_mode = BTM_BLE_ADV_DISABLE;
|
|
btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
btm_ble_update_mode_operation(role, bda, status);
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
** Function btm_ble_create_ll_conn_complete
|
|
**
|
|
** Description LE connection complete.
|
|
**
|
|
******************************************************************************/
|
|
void btm_ble_create_ll_conn_complete (UINT8 status)
|
|
{
|
|
if (status != HCI_SUCCESS) {
|
|
btm_ble_set_conn_st(BLE_CONN_IDLE);
|
|
btm_ble_update_mode_operation(HCI_ROLE_UNKNOWN, NULL, status);
|
|
}
|
|
}
|
|
/*****************************************************************************
|
|
** Function btm_proc_smp_cback
|
|
**
|
|
** Description This function is the SMP callback handler.
|
|
**
|
|
******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
UINT8 btm_proc_smp_cback(tSMP_EVT event, BD_ADDR bd_addr, tSMP_EVT_DATA *p_data)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
|
|
UINT8 res = 0;
|
|
|
|
BTM_TRACE_DEBUG ("btm_proc_smp_cback event = %d", event);
|
|
|
|
if (p_dev_rec != NULL) {
|
|
switch (event) {
|
|
case SMP_IO_CAP_REQ_EVT:
|
|
btm_ble_io_capabilities_req(p_dev_rec, (tBTM_LE_IO_REQ *)&p_data->io_req);
|
|
break;
|
|
|
|
case SMP_BR_KEYS_REQ_EVT:
|
|
btm_ble_br_keys_req(p_dev_rec, (tBTM_LE_IO_REQ *)&p_data->io_req);
|
|
break;
|
|
|
|
case SMP_PASSKEY_REQ_EVT:
|
|
case SMP_PASSKEY_NOTIF_EVT:
|
|
case SMP_OOB_REQ_EVT:
|
|
case SMP_NC_REQ_EVT:
|
|
case SMP_SC_OOB_REQ_EVT:
|
|
/* fall through */
|
|
p_dev_rec->sec_flags |= BTM_SEC_LE_AUTHENTICATED;
|
|
|
|
case SMP_SEC_REQUEST_EVT:
|
|
if (event == SMP_SEC_REQUEST_EVT && btm_cb.pairing_state != BTM_PAIR_STATE_IDLE) {
|
|
BTM_TRACE_DEBUG("%s: Ignoring SMP Security request", __func__);
|
|
break;
|
|
}
|
|
memcpy (btm_cb.pairing_bda, bd_addr, BD_ADDR_LEN);
|
|
p_dev_rec->sec_state = BTM_SEC_STATE_AUTHENTICATING;
|
|
btm_cb.pairing_flags |= BTM_PAIR_FLAGS_LE_ACTIVE;
|
|
/* fall through */
|
|
|
|
case SMP_COMPLT_EVT:
|
|
if (btm_cb.api.p_le_callback) {
|
|
/* the callback function implementation may change the IO capability... */
|
|
BTM_TRACE_DEBUG ("btm_cb.api.p_le_callback=%p", btm_cb.api.p_le_callback );
|
|
(*btm_cb.api.p_le_callback) (event, bd_addr, (tBTM_LE_EVT_DATA *)p_data);
|
|
}
|
|
|
|
if (event == SMP_COMPLT_EVT) {
|
|
BTM_TRACE_DEBUG ("evt=SMP_COMPLT_EVT before update sec_level=0x%x sec_flags=0x%x", p_data->cmplt.sec_level , p_dev_rec->sec_flags );
|
|
|
|
res = (p_data->cmplt.reason == SMP_SUCCESS) ? BTM_SUCCESS : BTM_ERR_PROCESSING;
|
|
|
|
BTM_TRACE_DEBUG ("after update result=%d sec_level=0x%x sec_flags=0x%x",
|
|
res, p_data->cmplt.sec_level , p_dev_rec->sec_flags );
|
|
|
|
if (p_data->cmplt.is_pair_cancel && btm_cb.api.p_bond_cancel_cmpl_callback ) {
|
|
BTM_TRACE_DEBUG ("Pairing Cancel completed");
|
|
(*btm_cb.api.p_bond_cancel_cmpl_callback)(BTM_SUCCESS);
|
|
}
|
|
#if BTM_BLE_CONFORMANCE_TESTING == TRUE
|
|
if (res != BTM_SUCCESS) {
|
|
if (!btm_cb.devcb.no_disc_if_pair_fail && p_data->cmplt.reason != SMP_CONN_TOUT) {
|
|
BTM_TRACE_DEBUG ("Pairing failed - prepare to remove ACL");
|
|
l2cu_start_post_bond_timer(p_dev_rec->ble_hci_handle);
|
|
} else {
|
|
BTM_TRACE_DEBUG ("Pairing failed - Not Removing ACL");
|
|
p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
|
|
}
|
|
}
|
|
#else
|
|
if (res != BTM_SUCCESS && p_data->cmplt.reason != SMP_CONN_TOUT) {
|
|
BTM_TRACE_DEBUG ("Pairing failed - prepare to remove ACL");
|
|
l2cu_start_post_bond_timer(p_dev_rec->ble_hci_handle);
|
|
}
|
|
#endif
|
|
|
|
BTM_TRACE_DEBUG ("btm_cb pairing_state=%x pairing_flags=%x pin_code_len=%x",
|
|
btm_cb.pairing_state,
|
|
btm_cb.pairing_flags,
|
|
btm_cb.pin_code_len );
|
|
BTM_TRACE_DEBUG ("btm_cb.pairing_bda %02x:%02x:%02x:%02x:%02x:%02x",
|
|
btm_cb.pairing_bda[0], btm_cb.pairing_bda[1], btm_cb.pairing_bda[2],
|
|
btm_cb.pairing_bda[3], btm_cb.pairing_bda[4], btm_cb.pairing_bda[5]);
|
|
|
|
/* Reset btm state only if the callback address matches pairing address*/
|
|
if (memcmp(bd_addr, btm_cb.pairing_bda, BD_ADDR_LEN) == 0) {
|
|
memset (btm_cb.pairing_bda, 0xff, BD_ADDR_LEN);
|
|
btm_cb.pairing_state = BTM_PAIR_STATE_IDLE;
|
|
btm_cb.pairing_flags = 0;
|
|
}
|
|
|
|
if (res == BTM_SUCCESS) {
|
|
p_dev_rec->sec_state = BTM_SEC_STATE_IDLE;
|
|
#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
|
|
/* add all bonded device into resolving list if IRK is available*/
|
|
btm_ble_resolving_list_load_dev(p_dev_rec);
|
|
#endif
|
|
}
|
|
|
|
btm_sec_dev_rec_cback_event(p_dev_rec, res, TRUE);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
BTM_TRACE_DEBUG ("unknown event = %d", event);
|
|
break;
|
|
|
|
|
|
}
|
|
} else {
|
|
BTM_TRACE_ERROR("btm_proc_smp_cback received for unknown device");
|
|
}
|
|
return 0;
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_BleDataSignature
|
|
**
|
|
** Description This function is called to sign the data using AES128 CMAC
|
|
** algorith.
|
|
**
|
|
** Parameter bd_addr: target device the data to be signed for.
|
|
** p_text: singing data
|
|
** len: length of the data to be signed.
|
|
** signature: output parameter where data signature is going to
|
|
** be stored.
|
|
**
|
|
** Returns TRUE if signing sucessul, otherwise FALSE.
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
BOOLEAN BTM_BleDataSignature (BD_ADDR bd_addr, UINT8 *p_text, UINT16 len,
|
|
BLE_SIGNATURE signature)
|
|
{
|
|
tBTM_SEC_DEV_REC *p_rec = btm_find_dev (bd_addr);
|
|
|
|
BTM_TRACE_DEBUG ("%s", __func__);
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
BOOLEAN ret = FALSE;
|
|
#if (SMP_INCLUDED == TRUE)
|
|
if (p_rec == NULL) {
|
|
BTM_TRACE_ERROR("%s-data signing can not be done from unknown device", __func__);
|
|
} else {
|
|
UINT8 *p_mac = (UINT8 *)signature;
|
|
UINT8 *p_buf, *pp;
|
|
if ((p_buf = (UINT8 *)osi_malloc((UINT16)(len + 4))) != NULL) {
|
|
BTM_TRACE_DEBUG("%s-Start to generate Local CSRK", __func__);
|
|
pp = p_buf;
|
|
/* prepare plain text */
|
|
if (p_text) {
|
|
memcpy(p_buf, p_text, len);
|
|
pp = (p_buf + len);
|
|
}
|
|
|
|
UINT32_TO_STREAM(pp, p_rec->ble.keys.local_counter);
|
|
UINT32_TO_STREAM(p_mac, p_rec->ble.keys.local_counter);
|
|
|
|
if ((ret = aes_cipher_msg_auth_code(p_rec->ble.keys.lcsrk, p_buf, (UINT16)(len + 4),
|
|
BTM_CMAC_TLEN_SIZE, p_mac)) == TRUE) {
|
|
btm_ble_increment_sign_ctr(bd_addr, TRUE);
|
|
}
|
|
|
|
BTM_TRACE_DEBUG("%s p_mac = %p", __func__, p_mac);
|
|
BTM_TRACE_DEBUG("p_mac[0] = 0x%02x p_mac[1] = 0x%02x p_mac[2] = 0x%02x p_mac[3] = 0x%02x",
|
|
*p_mac, *(p_mac + 1), *(p_mac + 2), *(p_mac + 3));
|
|
BTM_TRACE_DEBUG("p_mac[4] = 0x%02x p_mac[5] = 0x%02x p_mac[6] = 0x%02x p_mac[7] = 0x%02x",
|
|
*(p_mac + 4), *(p_mac + 5), *(p_mac + 6), *(p_mac + 7));
|
|
osi_free(p_buf);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_BleVerifySignature
|
|
**
|
|
** Description This function is called to verify the data signature
|
|
**
|
|
** Parameter bd_addr: target device the data to be signed for.
|
|
** p_orig: original data before signature.
|
|
** len: length of the signing data
|
|
** counter: counter used when doing data signing
|
|
** p_comp: signature to be compared against.
|
|
|
|
** Returns TRUE if signature verified correctly; otherwise FALSE.
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN BTM_BleVerifySignature (BD_ADDR bd_addr, UINT8 *p_orig, UINT16 len, UINT32 counter,
|
|
UINT8 *p_comp)
|
|
{
|
|
BOOLEAN verified = FALSE;
|
|
tBTM_SEC_DEV_REC *p_rec = btm_find_dev (bd_addr);
|
|
UINT8 p_mac[BTM_CMAC_TLEN_SIZE];
|
|
|
|
if (p_rec == NULL || (p_rec && !(p_rec->ble.key_type & BTM_LE_KEY_PCSRK))) {
|
|
BTM_TRACE_ERROR("can not verify signature for unknown device");
|
|
} else if (counter < p_rec->ble.keys.counter) {
|
|
BTM_TRACE_ERROR("signature received with out dated sign counter");
|
|
} else if (p_orig == NULL) {
|
|
BTM_TRACE_ERROR("No signature to verify");
|
|
} else {
|
|
BTM_TRACE_DEBUG ("%s rcv_cnt=%d >= expected_cnt=%d", __func__, counter,
|
|
p_rec->ble.keys.counter);
|
|
|
|
if (aes_cipher_msg_auth_code(p_rec->ble.keys.pcsrk, p_orig, len, BTM_CMAC_TLEN_SIZE, p_mac)) {
|
|
if (memcmp(p_mac, p_comp, BTM_CMAC_TLEN_SIZE) == 0) {
|
|
btm_ble_increment_sign_ctr(bd_addr, FALSE);
|
|
verified = TRUE;
|
|
}
|
|
}
|
|
}
|
|
return verified;
|
|
}
|
|
#endif /* SMP_INCLUDED */
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_GetLeSecurityState
|
|
**
|
|
** Description This function is called to get security mode 1 flags and
|
|
** encryption key size for LE peer.
|
|
**
|
|
** Returns BOOLEAN TRUE if LE device is found, FALSE otherwise.
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN BTM_GetLeSecurityState (BD_ADDR bd_addr, UINT8 *p_le_dev_sec_flags, UINT8 *p_le_key_size)
|
|
{
|
|
#if (BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE)
|
|
tBTM_SEC_DEV_REC *p_dev_rec;
|
|
UINT16 dev_rec_sec_flags;
|
|
#endif
|
|
|
|
*p_le_dev_sec_flags = 0;
|
|
*p_le_key_size = 0;
|
|
|
|
#if (BLE_INCLUDED == TRUE && SMP_INCLUDED == TRUE)
|
|
if ((p_dev_rec = btm_find_dev (bd_addr)) == NULL) {
|
|
BTM_TRACE_ERROR ("%s fails", __func__);
|
|
return (FALSE);
|
|
}
|
|
|
|
if (p_dev_rec->ble_hci_handle == BTM_SEC_INVALID_HANDLE) {
|
|
BTM_TRACE_ERROR ("%s-this is not LE device", __func__);
|
|
return (FALSE);
|
|
}
|
|
|
|
dev_rec_sec_flags = p_dev_rec->sec_flags;
|
|
|
|
if (dev_rec_sec_flags & BTM_SEC_LE_ENCRYPTED) {
|
|
/* link is encrypted with LTK or STK */
|
|
*p_le_key_size = p_dev_rec->enc_key_size;
|
|
*p_le_dev_sec_flags |= BTM_SEC_LE_LINK_ENCRYPTED;
|
|
|
|
*p_le_dev_sec_flags |= (dev_rec_sec_flags & BTM_SEC_LE_AUTHENTICATED)
|
|
? BTM_SEC_LE_LINK_PAIRED_WITH_MITM /* set auth LTK flag */
|
|
: BTM_SEC_LE_LINK_PAIRED_WITHOUT_MITM; /* set unauth LTK flag */
|
|
} else if (p_dev_rec->ble.key_type & BTM_LE_KEY_PENC) {
|
|
/* link is unencrypted, still LTK is available */
|
|
*p_le_key_size = p_dev_rec->ble.keys.key_size;
|
|
|
|
*p_le_dev_sec_flags |= (dev_rec_sec_flags & BTM_SEC_LE_LINK_KEY_AUTHED)
|
|
? BTM_SEC_LE_LINK_PAIRED_WITH_MITM /* set auth LTK flag */
|
|
: BTM_SEC_LE_LINK_PAIRED_WITHOUT_MITM; /* set unauth LTK flag */
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("%s - le_dev_sec_flags: 0x%02x, le_key_size: %d",
|
|
__func__, *p_le_dev_sec_flags, *p_le_key_size);
|
|
|
|
return TRUE;
|
|
#else
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_BleSecurityProcedureIsRunning
|
|
**
|
|
** Description This function indicates if LE security procedure is
|
|
** currently running with the peer.
|
|
**
|
|
** Returns BOOLEAN TRUE if security procedure is running, FALSE otherwise.
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN BTM_BleSecurityProcedureIsRunning(BD_ADDR bd_addr)
|
|
{
|
|
#if (BLE_INCLUDED == TRUE)
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
|
|
|
|
if (p_dev_rec == NULL) {
|
|
BTM_TRACE_ERROR ("%s device with BDA: %08x%04x is not found",
|
|
__func__, (bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
|
|
(bd_addr[4] << 8) + bd_addr[5]);
|
|
return FALSE;
|
|
}
|
|
|
|
return (p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING ||
|
|
p_dev_rec->sec_state == BTM_SEC_STATE_AUTHENTICATING);
|
|
#else
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function BTM_BleGetSupportedKeySize
|
|
**
|
|
** Description This function gets the maximum encryption key size in bytes
|
|
** the local device can suport.
|
|
** record.
|
|
**
|
|
** Returns the key size or 0 if the size can't be retrieved.
|
|
**
|
|
*******************************************************************************/
|
|
extern UINT8 BTM_BleGetSupportedKeySize (BD_ADDR bd_addr)
|
|
{
|
|
#ifndef L2CAP_LE_COC_INCLUDED
|
|
#define L2CAP_LE_COC_INCLUDED FALSE
|
|
#endif
|
|
#if ((BLE_INCLUDED == TRUE) && (L2CAP_LE_COC_INCLUDED == TRUE))
|
|
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr);
|
|
tBTM_LE_IO_REQ dev_io_cfg;
|
|
UINT8 callback_rc;
|
|
|
|
if (!p_dev_rec) {
|
|
BTM_TRACE_ERROR ("%s device with BDA: %08x%04x is not found",
|
|
__func__, (bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
|
|
(bd_addr[4] << 8) + bd_addr[5]);
|
|
return 0;
|
|
}
|
|
|
|
if (btm_cb.api.p_le_callback == NULL) {
|
|
BTM_TRACE_ERROR ("%s can't access supported key size", __func__);
|
|
return 0;
|
|
}
|
|
|
|
callback_rc = (*btm_cb.api.p_le_callback) (BTM_LE_IO_REQ_EVT, p_dev_rec->bd_addr,
|
|
(tBTM_LE_EVT_DATA *) &dev_io_cfg);
|
|
|
|
if (callback_rc != BTM_SUCCESS) {
|
|
BTM_TRACE_ERROR ("%s can't access supported key size", __func__);
|
|
return 0;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG ("%s device supports key size = %d", __func__, dev_io_cfg.max_key_size);
|
|
return (dev_io_cfg.max_key_size);
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
/*******************************************************************************
|
|
** Utility functions for LE device IR/ER generation
|
|
*******************************************************************************/
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_notify_new_key
|
|
**
|
|
** Description This function is to notify application new keys have been
|
|
** generated.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
#if (SMP_INCLUDED == TRUE)
|
|
static void btm_notify_new_key(UINT8 key_type)
|
|
{
|
|
tBTM_BLE_LOCAL_KEYS *p_locak_keys = NULL;
|
|
|
|
BTM_TRACE_DEBUG ("btm_notify_new_key key_type=%d", key_type);
|
|
|
|
if (btm_cb.api.p_le_key_callback) {
|
|
switch (key_type) {
|
|
case BTM_BLE_KEY_TYPE_ID:
|
|
BTM_TRACE_DEBUG ("BTM_BLE_KEY_TYPE_ID");
|
|
p_locak_keys = (tBTM_BLE_LOCAL_KEYS *)&btm_cb.devcb.id_keys;
|
|
break;
|
|
|
|
case BTM_BLE_KEY_TYPE_ER:
|
|
BTM_TRACE_DEBUG ("BTM_BLE_KEY_TYPE_ER");
|
|
p_locak_keys = (tBTM_BLE_LOCAL_KEYS *)&btm_cb.devcb.ble_encryption_key_value;
|
|
break;
|
|
|
|
default:
|
|
BTM_TRACE_ERROR("unknown key type: %d", key_type);
|
|
break;
|
|
}
|
|
if (p_locak_keys != NULL) {
|
|
(*btm_cb.api.p_le_key_callback) (key_type, p_locak_keys);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_process_er2
|
|
**
|
|
** Description This function is called when ER is generated, store it in
|
|
** local control block.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static void btm_ble_process_er2(tBTM_RAND_ENC *p)
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_process_er2");
|
|
|
|
if (p && p->opcode == HCI_BLE_RAND) {
|
|
memcpy(&btm_cb.devcb.ble_encryption_key_value[8], p->param_buf, BT_OCTET8_LEN);
|
|
btm_notify_new_key(BTM_BLE_KEY_TYPE_ER);
|
|
} else {
|
|
BTM_TRACE_ERROR("Generating ER2 exception.");
|
|
memset(&btm_cb.devcb.ble_encryption_key_value, 0, sizeof(BT_OCTET16));
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_process_er
|
|
**
|
|
** Description This function is called when ER is generated, store it in
|
|
** local control block.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static void btm_ble_process_er(tBTM_RAND_ENC *p)
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_process_er");
|
|
|
|
if (p && p->opcode == HCI_BLE_RAND) {
|
|
memcpy(&btm_cb.devcb.ble_encryption_key_value[0], p->param_buf, BT_OCTET8_LEN);
|
|
|
|
if (!btsnd_hcic_ble_rand((void *)btm_ble_process_er2)) {
|
|
memset(&btm_cb.devcb.ble_encryption_key_value, 0, sizeof(BT_OCTET16));
|
|
BTM_TRACE_ERROR("Generating ER2 failed.");
|
|
}
|
|
} else {
|
|
BTM_TRACE_ERROR("Generating ER1 exception.");
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_process_irk
|
|
**
|
|
** Description This function is called when IRK is generated, store it in
|
|
** local control block.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static void btm_ble_process_irk(tSMP_ENC *p)
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_process_irk");
|
|
if (p && p->opcode == HCI_BLE_ENCRYPT) {
|
|
memcpy(btm_cb.devcb.id_keys.irk, p->param_buf, BT_OCTET16_LEN);
|
|
btm_notify_new_key(BTM_BLE_KEY_TYPE_ID);
|
|
|
|
#if BLE_PRIVACY_SPT == TRUE
|
|
/* if privacy is enabled, new RPA should be calculated */
|
|
if (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE) {
|
|
btm_gen_resolvable_private_addr((void *)btm_gen_resolve_paddr_low);
|
|
}
|
|
#endif
|
|
} else {
|
|
BTM_TRACE_ERROR("Generating IRK exception.");
|
|
}
|
|
|
|
/* proceed generate ER */
|
|
if (!btsnd_hcic_ble_rand((void *)btm_ble_process_er)) {
|
|
BTM_TRACE_ERROR("Generating ER failed.");
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_process_dhk
|
|
**
|
|
** Description This function is called when DHK is calculated, store it in
|
|
** local control block, and proceed to generate ER, a 128-bits
|
|
** random number.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static void btm_ble_process_dhk(tSMP_ENC *p)
|
|
{
|
|
UINT8 btm_ble_irk_pt = 0x01;
|
|
tSMP_ENC output;
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_process_dhk");
|
|
|
|
if (p && p->opcode == HCI_BLE_ENCRYPT) {
|
|
memcpy(btm_cb.devcb.id_keys.dhk, p->param_buf, BT_OCTET16_LEN);
|
|
BTM_TRACE_DEBUG("BLE DHK generated.");
|
|
|
|
/* IRK = D1(IR, 1) */
|
|
if (!SMP_Encrypt(btm_cb.devcb.id_keys.ir, BT_OCTET16_LEN, &btm_ble_irk_pt,
|
|
1, &output)) {
|
|
/* reset all identity root related key */
|
|
memset(&btm_cb.devcb.id_keys, 0, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
|
|
} else {
|
|
btm_ble_process_irk(&output);
|
|
}
|
|
} else {
|
|
/* reset all identity root related key */
|
|
memset(&btm_cb.devcb.id_keys, 0, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_process_ir2
|
|
**
|
|
** Description This function is called when IR is generated, proceed to calculate
|
|
** DHK = Eir({0x03, 0, 0 ...})
|
|
**
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static void btm_ble_process_ir2(tBTM_RAND_ENC *p)
|
|
{
|
|
UINT8 btm_ble_dhk_pt = 0x03;
|
|
tSMP_ENC output;
|
|
|
|
BTM_TRACE_DEBUG ("btm_ble_process_ir2");
|
|
|
|
if (p && p->opcode == HCI_BLE_RAND) {
|
|
/* remembering in control block */
|
|
memcpy(&btm_cb.devcb.id_keys.ir[8], p->param_buf, BT_OCTET8_LEN);
|
|
/* generate DHK= Eir({0x03, 0x00, 0x00 ...}) */
|
|
|
|
|
|
SMP_Encrypt(btm_cb.devcb.id_keys.ir, BT_OCTET16_LEN, &btm_ble_dhk_pt,
|
|
1, &output);
|
|
btm_ble_process_dhk(&output);
|
|
|
|
BTM_TRACE_DEBUG("BLE IR generated.");
|
|
} else {
|
|
memset(&btm_cb.devcb.id_keys, 0, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_process_ir
|
|
**
|
|
** Description This function is called when IR is generated, proceed to calculate
|
|
** DHK = Eir({0x02, 0, 0 ...})
|
|
**
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
static void btm_ble_process_ir(tBTM_RAND_ENC *p)
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_process_ir");
|
|
|
|
if (p && p->opcode == HCI_BLE_RAND) {
|
|
/* remembering in control block */
|
|
memcpy(btm_cb.devcb.id_keys.ir, p->param_buf, BT_OCTET8_LEN);
|
|
|
|
if (!btsnd_hcic_ble_rand((void *)btm_ble_process_ir2)) {
|
|
BTM_TRACE_ERROR("Generating IR2 failed.");
|
|
memset(&btm_cb.devcb.id_keys, 0, sizeof(tBTM_BLE_LOCAL_ID_KEYS));
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_reset_id
|
|
**
|
|
** Description This function is called to reset LE device identity.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_reset_id( void )
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_reset_id");
|
|
|
|
/* regenrate Identity Root*/
|
|
if (!btsnd_hcic_ble_rand((void *)btm_ble_process_ir)) {
|
|
BTM_TRACE_DEBUG("Generating IR failed.");
|
|
}
|
|
}
|
|
#endif ///SMP_INCLUDED == TRUE
|
|
|
|
#if BTM_BLE_CONFORMANCE_TESTING == TRUE
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_set_no_disc_if_pair_fail
|
|
**
|
|
** Description This function indicates that whether no disconnect of the ACL
|
|
** should be used if pairing failed
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_set_no_disc_if_pair_fail(BOOLEAN disable_disc )
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_set_disc_enable_if_pair_fail disable_disc=%d", disable_disc);
|
|
btm_cb.devcb.no_disc_if_pair_fail = disable_disc;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_set_test_mac_value
|
|
**
|
|
** Description This function set test MAC value
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_set_test_mac_value(BOOLEAN enable, UINT8 *p_test_mac_val )
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_set_test_mac_value enable=%d", enable);
|
|
btm_cb.devcb.enable_test_mac_val = enable;
|
|
memcpy(btm_cb.devcb.test_mac, p_test_mac_val, BT_OCTET8_LEN);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_set_test_local_sign_cntr_value
|
|
**
|
|
** Description This function set test local sign counter value
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_set_test_local_sign_cntr_value(BOOLEAN enable, UINT32 test_local_sign_cntr )
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_set_test_local_sign_cntr_value enable=%d local_sign_cntr=%d",
|
|
enable, test_local_sign_cntr);
|
|
btm_cb.devcb.enable_test_local_sign_cntr = enable;
|
|
btm_cb.devcb.test_local_sign_cntr = test_local_sign_cntr;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_set_random_address
|
|
**
|
|
** Description This function set a random address to local controller.
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_set_random_address(BD_ADDR random_bda)
|
|
{
|
|
tBTM_LE_RANDOM_CB *p_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
|
|
BOOLEAN adv_mode = btm_cb.ble_ctr_cb.inq_var.adv_mode ;
|
|
|
|
BTM_TRACE_DEBUG ("btm_set_random_address");
|
|
|
|
if (adv_mode == BTM_BLE_ADV_ENABLE) {
|
|
btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE);
|
|
}
|
|
|
|
memcpy(p_cb->private_addr, random_bda, BD_ADDR_LEN);
|
|
btsnd_hcic_ble_set_random_addr(p_cb->private_addr);
|
|
|
|
if (adv_mode == BTM_BLE_ADV_ENABLE) {
|
|
btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_ENABLE);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_set_keep_rfu_in_auth_req
|
|
**
|
|
** Description This function indicates if RFU bits have to be kept as is
|
|
** (by default they have to be set to 0 by the sender).
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_set_keep_rfu_in_auth_req(BOOLEAN keep_rfu)
|
|
{
|
|
BTM_TRACE_DEBUG ("btm_ble_set_keep_rfu_in_auth_req keep_rfus=%d", keep_rfu);
|
|
btm_cb.devcb.keep_rfu_in_auth_req = keep_rfu;
|
|
}
|
|
|
|
#endif /* BTM_BLE_CONFORMANCE_TESTING */
|
|
|
|
#endif /* BLE_INCLUDED */
|