1029 lines
34 KiB
C
Executable file
1029 lines
34 KiB
C
Executable file
/******************************************************************************
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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 controller based privacy.
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*
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******************************************************************************/
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#include <string.h>
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#include "bt_target.h"
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#if (BLE_INCLUDED == TRUE && BLE_PRIVACY_SPT == TRUE)
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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 "vendor_hcidefs.h"
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#include "btm_int.h"
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#include "controller.h"
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#include "hcidefs.h"
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#define HCI_VENDOR_BLE_RPA_VSC (0x0155 | HCI_GRP_VENDOR_SPECIFIC)
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/* RPA offload VSC specifics */
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#define BTM_BLE_META_IRK_ENABLE 0x01
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#define BTM_BLE_META_ADD_IRK_ENTRY 0x02
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#define BTM_BLE_META_REMOVE_IRK_ENTRY 0x03
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#define BTM_BLE_META_CLEAR_IRK_LIST 0x04
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#define BTM_BLE_META_READ_IRK_ENTRY 0x05
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#define BTM_BLE_META_CS_RESOLVE_ADDR 0x00000001
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#define BTM_BLE_IRK_ENABLE_LEN 2
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#define BTM_BLE_META_ADD_IRK_LEN 24
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#define BTM_BLE_META_REMOVE_IRK_LEN 8
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#define BTM_BLE_META_CLEAR_IRK_LEN 1
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#define BTM_BLE_META_READ_IRK_LEN 2
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#define BTM_BLE_META_ADD_WL_ATTR_LEN 9
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/*******************************************************************************
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** Functions implemented controller based privacy using Resolving List
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*******************************************************************************/
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/*******************************************************************************
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**
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** Function btm_ble_enq_resolving_list_pending
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**
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** Description add target address into resolving pending operation queue
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**
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** Parameters target_bda: target device address
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** add_entry: TRUE for add entry, FALSE for remove entry
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**
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** Returns void
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**
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*******************************************************************************/
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void btm_ble_enq_resolving_list_pending(BD_ADDR pseudo_bda, UINT8 op_code)
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{
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tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
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memcpy(p_q->resolve_q_random_pseudo[p_q->q_next], pseudo_bda, BD_ADDR_LEN);
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p_q->resolve_q_action[p_q->q_next] = op_code;
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p_q->q_next ++;
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p_q->q_next %= controller_get_interface()->get_ble_resolving_list_max_size();
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}
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/*******************************************************************************
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**
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** Function btm_ble_brcm_find_resolving_pending_entry
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**
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** Description check to see if the action is in pending list
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**
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** Parameters TRUE: action pending;
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** FALSE: new action
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**
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** Returns void
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**
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*******************************************************************************/
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BOOLEAN btm_ble_brcm_find_resolving_pending_entry(BD_ADDR pseudo_addr, UINT8 action)
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{
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tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
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for (UINT8 i = p_q->q_pending; i != p_q->q_next;)
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{
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if (memcmp(p_q->resolve_q_random_pseudo[i], pseudo_addr, BD_ADDR_LEN) == 0 &&
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action == p_q->resolve_q_action[i])
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return TRUE;
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i ++;
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i %= controller_get_interface()->get_ble_resolving_list_max_size();
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}
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return FALSE;
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}
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/*******************************************************************************
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**
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** Function btm_ble_deq_resolving_pending
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**
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** Description dequeue target address from resolving pending operation queue
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**
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** Parameters pseudo_addr: pseudo_addr device address
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**
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** Returns void
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**
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*******************************************************************************/
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BOOLEAN btm_ble_deq_resolving_pending(BD_ADDR pseudo_addr)
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{
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tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
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if (p_q->q_next != p_q->q_pending)
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{
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memcpy(pseudo_addr, p_q->resolve_q_random_pseudo[p_q->q_pending], BD_ADDR_LEN);
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memset(p_q->resolve_q_random_pseudo[p_q->q_pending], 0, BD_ADDR_LEN);
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p_q->q_pending ++;
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p_q->q_pending %= controller_get_interface()->get_ble_resolving_list_max_size();
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return TRUE;
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}
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return FALSE;
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}
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/*******************************************************************************
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**
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** Function btm_ble_clear_irk_index
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**
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** Description clear IRK list index mask for availability
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**
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** Returns none
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**
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*******************************************************************************/
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void btm_ble_clear_irk_index(UINT8 index)
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{
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UINT8 byte;
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UINT8 bit;
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if (index < controller_get_interface()->get_ble_resolving_list_max_size())
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{
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byte = index / 8;
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bit = index % 8;
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btm_cb.ble_ctr_cb.irk_list_mask[byte] &= (~(1 << bit));
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}
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}
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/*******************************************************************************
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**
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** Function btm_ble_find_irk_index
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**
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** Description find the first available IRK list index
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**
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** Returns index from 0 ~ max (127 default)
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**
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*******************************************************************************/
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UINT8 btm_ble_find_irk_index(void)
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{
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UINT8 i = 0;
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UINT8 byte;
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UINT8 bit;
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while (i < controller_get_interface()->get_ble_resolving_list_max_size())
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{
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byte = i / 8;
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bit = i % 8;
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if ((btm_cb.ble_ctr_cb.irk_list_mask[byte] & (1 << bit)) == 0)
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{
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btm_cb.ble_ctr_cb.irk_list_mask[byte] |= (1 << bit);
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return i;
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}
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i++;
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}
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BTM_TRACE_ERROR ("%s failed, list full", __func__);
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return i;
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}
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/*******************************************************************************
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**
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** Function btm_ble_update_resolving_list
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**
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** Description update resolving list entry in host maintained record
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**
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** Returns void
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**
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*******************************************************************************/
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void btm_ble_update_resolving_list(BD_ADDR pseudo_bda, BOOLEAN add)
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{
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tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev(pseudo_bda);
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if (p_dev_rec == NULL)
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return;
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if (add)
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{
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p_dev_rec->ble.in_controller_list |= BTM_RESOLVING_LIST_BIT;
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if (!controller_get_interface()->supports_ble_privacy())
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p_dev_rec->ble.resolving_list_index = btm_ble_find_irk_index();
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}
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else
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{
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p_dev_rec->ble.in_controller_list &= ~BTM_RESOLVING_LIST_BIT;
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if (!controller_get_interface()->supports_ble_privacy())
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{
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/* clear IRK list index mask */
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btm_ble_clear_irk_index(p_dev_rec->ble.resolving_list_index);
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p_dev_rec->ble.resolving_list_index = 0;
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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_ble_clear_resolving_list_complete
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**
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** Description This function is called when command complete for
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** clear resolving list
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**
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** Returns void
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**
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*******************************************************************************/
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void btm_ble_clear_resolving_list_complete(UINT8 *p, UINT16 evt_len)
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{
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UINT8 status = 0;
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STREAM_TO_UINT8(status, p);
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BTM_TRACE_DEBUG("%s status=%d", __func__, status);
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if (status == HCI_SUCCESS)
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{
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if (evt_len >= 3)
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{
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/* VSC complete has one extra byte for op code and list size, skip it here */
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p ++;
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/* updated the available list size, and current list size */
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uint8_t irk_list_sz_max = 0;
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STREAM_TO_UINT8(irk_list_sz_max, p);
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if (controller_get_interface()->get_ble_resolving_list_max_size() == 0)
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btm_ble_resolving_list_init(irk_list_sz_max);
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uint8_t irk_mask_size = (irk_list_sz_max % 8) ?
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(irk_list_sz_max / 8 + 1) : (irk_list_sz_max / 8);
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memset(btm_cb.ble_ctr_cb.irk_list_mask, 0, irk_mask_size);
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}
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btm_cb.ble_ctr_cb.resolving_list_avail_size =
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controller_get_interface()->get_ble_resolving_list_max_size();
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BTM_TRACE_DEBUG("%s resolving_list_avail_size=%d",
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__func__, btm_cb.ble_ctr_cb.resolving_list_avail_size);
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for (UINT8 i = 0; i < BTM_SEC_MAX_DEVICE_RECORDS; ++i)
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btm_cb.sec_dev_rec[i].ble.in_controller_list &= ~BTM_RESOLVING_LIST_BIT;
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}
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}
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/*******************************************************************************
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**
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** Function btm_ble_add_resolving_list_entry_complete
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**
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** Description This function is called when command complete for
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** add resolving list entry
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**
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** Returns void
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**
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*******************************************************************************/
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void btm_ble_add_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len)
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{
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UINT8 status;
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STREAM_TO_UINT8(status, p);
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BTM_TRACE_DEBUG("%s status = %d", __func__, status);
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BD_ADDR pseudo_bda;
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if (!btm_ble_deq_resolving_pending(pseudo_bda))
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{
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BTM_TRACE_DEBUG("no pending resolving list operation");
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return;
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}
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if (status == HCI_SUCCESS)
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{
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/* privacy 1.2 command complete does not have these extra byte */
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if (evt_len > 2)
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{
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/* VSC complete has one extra byte for op code, skip it here */
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p ++;
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STREAM_TO_UINT8(btm_cb.ble_ctr_cb.resolving_list_avail_size, p);
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}
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else
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btm_cb.ble_ctr_cb.resolving_list_avail_size --;
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}
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else if (status == HCI_ERR_MEMORY_FULL) /* BT_ERROR_CODE_MEMORY_CAPACITY_EXCEEDED */
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{
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btm_cb.ble_ctr_cb.resolving_list_avail_size = 0;
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BTM_TRACE_DEBUG("%s Resolving list Full ", __func__);
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}
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}
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/*******************************************************************************
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**
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** Function btm_ble_remove_resolving_list_entry_complete
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**
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** Description This function is called when command complete for
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** remove resolving list entry
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**
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** Returns void
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**
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*******************************************************************************/
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void btm_ble_remove_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len)
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{
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BD_ADDR pseudo_bda;
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UINT8 status;
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STREAM_TO_UINT8(status, p);
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BTM_TRACE_DEBUG("%s status = %d", __func__, status);
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if (!btm_ble_deq_resolving_pending(pseudo_bda))
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{
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BTM_TRACE_ERROR("%s no pending resolving list operation", __func__);
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return;
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}
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if (status == HCI_SUCCESS)
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{
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/* proprietary: spec does not have these extra bytes */
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if (evt_len > 2)
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{
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p ++; /* skip opcode */
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STREAM_TO_UINT8(btm_cb.ble_ctr_cb.resolving_list_avail_size, p);
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}
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else
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btm_cb.ble_ctr_cb.resolving_list_avail_size++;
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}
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}
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/*******************************************************************************
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**
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** Function btm_ble_read_resolving_list_entry_complete
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**
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** Description This function is called when command complete for
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** remove resolving list entry
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**
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** Returns void
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**
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*******************************************************************************/
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void btm_ble_read_resolving_list_entry_complete(UINT8 *p, UINT16 evt_len)
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{
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UINT8 status, rra_type = BTM_BLE_ADDR_PSEUDO;
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BD_ADDR rra, pseudo_bda;
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STREAM_TO_UINT8 (status, p);
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BTM_TRACE_DEBUG("%s status = %d", __func__, status);
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if (!btm_ble_deq_resolving_pending(pseudo_bda))
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{
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BTM_TRACE_ERROR("no pending resolving list operation");
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return;
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}
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if (status == HCI_SUCCESS)
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{
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/* proprietary spec has extra bytes */
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if (evt_len > 8)
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{
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p += (2 + 16 + 1 + 6); /* skip subcode, index, IRK value, address type, identity addr type */
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STREAM_TO_BDADDR(rra, p);
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BTM_TRACE_ERROR("%s peer_addr: %02x:%02x:%02x:%02x:%02x:%02x",
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__func__, rra[0], rra[1], rra[2], rra[3], rra[4], rra[5]);
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}
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else
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{
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STREAM_TO_BDADDR(rra, p);
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}
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btm_ble_refresh_peer_resolvable_private_addr(pseudo_bda, rra, rra_type);
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}
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}
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/*******************************************************************************
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VSC that implement controller based privacy
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********************************************************************************/
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/*******************************************************************************
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**
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** Function btm_ble_resolving_list_vsc_op_cmpl
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**
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** Description IRK operation VSC complete handler
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**
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** Parameters
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**
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** Returns void
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**
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*******************************************************************************/
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void btm_ble_resolving_list_vsc_op_cmpl (tBTM_VSC_CMPL *p_params)
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{
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UINT8 *p = p_params->p_param_buf, op_subcode;
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UINT16 evt_len = p_params->param_len;
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op_subcode = *(p + 1);
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BTM_TRACE_DEBUG("%s op_subcode = %d", __func__, op_subcode);
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if (op_subcode == BTM_BLE_META_CLEAR_IRK_LIST)
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{
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btm_ble_clear_resolving_list_complete(p, evt_len);
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}
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else if (op_subcode == BTM_BLE_META_ADD_IRK_ENTRY)
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{
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btm_ble_add_resolving_list_entry_complete(p, evt_len);
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}
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else if (op_subcode == BTM_BLE_META_REMOVE_IRK_ENTRY)
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{
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btm_ble_remove_resolving_list_entry_complete(p, evt_len);
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}
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else if (op_subcode == BTM_BLE_META_READ_IRK_ENTRY)
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{
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btm_ble_read_resolving_list_entry_complete(p, evt_len);
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}
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else if (op_subcode == BTM_BLE_META_IRK_ENABLE)
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{
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/* RPA offloading enable/disabled */
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}
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}
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/*******************************************************************************
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**
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** Function btm_ble_remove_resolving_list_entry
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**
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** Description This function to remove an IRK entry from the list
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**
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** Parameters ble_addr_type: address type
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** ble_addr: LE adddress
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**
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** Returns status
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**
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*******************************************************************************/
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tBTM_STATUS btm_ble_remove_resolving_list_entry(tBTM_SEC_DEV_REC *p_dev_rec)
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{
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/* if controller does not support RPA offloading or privacy 1.2, skip */
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if (controller_get_interface()->get_ble_resolving_list_max_size() == 0)
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return BTM_WRONG_MODE;
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tBTM_STATUS st = BTM_NO_RESOURCES;
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if (controller_get_interface()->supports_ble_privacy())
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{
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if (btsnd_hcic_ble_rm_device_resolving_list(p_dev_rec->ble.static_addr_type,
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p_dev_rec->ble.static_addr))
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st = BTM_CMD_STARTED;
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}
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else
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{
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UINT8 param[20]= {0};
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UINT8 *p = param;
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UINT8_TO_STREAM(p, BTM_BLE_META_REMOVE_IRK_ENTRY);
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UINT8_TO_STREAM(p, p_dev_rec->ble.static_addr_type);
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BDADDR_TO_STREAM(p, p_dev_rec->ble.static_addr);
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st = BTM_VendorSpecificCommand(HCI_VENDOR_BLE_RPA_VSC,
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BTM_BLE_META_REMOVE_IRK_LEN,
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param,
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btm_ble_resolving_list_vsc_op_cmpl);
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}
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if (st == BTM_CMD_STARTED)
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btm_ble_enq_resolving_list_pending( p_dev_rec->bd_addr, BTM_BLE_META_REMOVE_IRK_ENTRY);
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return st;
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}
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|
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/*******************************************************************************
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**
|
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** Function btm_ble_clear_resolving_list
|
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**
|
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** Description This function clears the resolving list
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**
|
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** Parameters None.
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**
|
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** Returns status
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**
|
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*******************************************************************************/
|
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tBTM_STATUS btm_ble_clear_resolving_list(void)
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{
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tBTM_STATUS st = BTM_NO_RESOURCES;
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|
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if (controller_get_interface()->supports_ble_privacy())
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{
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if (btsnd_hcic_ble_clear_resolving_list())
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st = BTM_SUCCESS;
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}
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else
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{
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UINT8 param[20] = {0};
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UINT8 *p = param;
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|
|
UINT8_TO_STREAM(p, BTM_BLE_META_CLEAR_IRK_LIST);
|
|
st = BTM_VendorSpecificCommand (HCI_VENDOR_BLE_RPA_VSC,
|
|
BTM_BLE_META_CLEAR_IRK_LEN,
|
|
param,
|
|
btm_ble_resolving_list_vsc_op_cmpl);
|
|
}
|
|
|
|
return st;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_read_resolving_list_entry
|
|
**
|
|
** Description This function read an IRK entry by index
|
|
**
|
|
** Parameters entry index.
|
|
**
|
|
** Returns status
|
|
**
|
|
*******************************************************************************/
|
|
tBTM_STATUS btm_ble_read_resolving_list_entry(tBTM_SEC_DEV_REC *p_dev_rec)
|
|
{
|
|
tBTM_STATUS st = BTM_NO_RESOURCES;
|
|
|
|
if (!(p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT))
|
|
return BTM_WRONG_MODE;
|
|
|
|
if (controller_get_interface()->supports_ble_privacy())
|
|
{
|
|
if (btsnd_hcic_ble_read_resolvable_addr_peer(p_dev_rec->ble.static_addr_type,
|
|
p_dev_rec->ble.static_addr))
|
|
st = BTM_CMD_STARTED;
|
|
}
|
|
else
|
|
{
|
|
UINT8 param[20] = {0};
|
|
UINT8 *p = param;
|
|
|
|
UINT8_TO_STREAM(p, BTM_BLE_META_READ_IRK_ENTRY);
|
|
UINT8_TO_STREAM(p, p_dev_rec->ble.resolving_list_index);
|
|
|
|
st = BTM_VendorSpecificCommand (HCI_VENDOR_BLE_RPA_VSC,
|
|
BTM_BLE_META_READ_IRK_LEN,
|
|
param,
|
|
btm_ble_resolving_list_vsc_op_cmpl);
|
|
}
|
|
|
|
if (st == BTM_CMD_STARTED)
|
|
btm_ble_enq_resolving_list_pending(p_dev_rec->bd_addr,
|
|
BTM_BLE_META_READ_IRK_ENTRY);
|
|
|
|
return st;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_suspend_resolving_list_activity
|
|
**
|
|
** Description This function suspends all resolving list activity, including
|
|
** scan, initiating, and advertising, if resolving list is being
|
|
** enabled.
|
|
**
|
|
** Parameters
|
|
**
|
|
** Returns TRUE if suspended; FALSE otherwise
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN btm_ble_suspend_resolving_list_activity(void)
|
|
{
|
|
tBTM_BLE_CB *p_ble_cb = &btm_cb.ble_ctr_cb;
|
|
|
|
/* if resolving list is not enabled, do not need to terminate any activity */
|
|
/* if asking for stop all activity */
|
|
/* if already suspended */
|
|
if (p_ble_cb->suspended_rl_state != BTM_BLE_RL_IDLE)
|
|
return TRUE;
|
|
|
|
/* direct connection active, wait until it completed */
|
|
if (btm_ble_get_conn_st() == BLE_DIR_CONN)
|
|
{
|
|
BTM_TRACE_ERROR("resolving list can not be edited, EnQ now");
|
|
return FALSE;
|
|
}
|
|
|
|
p_ble_cb->suspended_rl_state = BTM_BLE_RL_IDLE;
|
|
|
|
if (p_ble_cb->inq_var.adv_mode == BTM_BLE_ADV_ENABLE)
|
|
{
|
|
btm_ble_stop_adv();
|
|
p_ble_cb->suspended_rl_state |= BTM_BLE_RL_ADV;
|
|
}
|
|
|
|
if (BTM_BLE_IS_SCAN_ACTIVE(p_ble_cb->scan_activity))
|
|
{
|
|
btm_ble_stop_scan();
|
|
p_ble_cb->suspended_rl_state |= BTM_BLE_RL_SCAN;
|
|
}
|
|
|
|
if (btm_ble_suspend_bg_conn())
|
|
p_ble_cb->suspended_rl_state |= BTM_BLE_RL_INIT;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_resume_resolving_list_activity
|
|
**
|
|
** Description This function resumes the resolving list activity, including
|
|
** scanning, initiating, and advertising, if any of these
|
|
** activities has been suspended earlier.
|
|
**
|
|
** Returns none
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_resume_resolving_list_activity(void)
|
|
{
|
|
tBTM_BLE_CB *p_ble_cb = &btm_cb.ble_ctr_cb;
|
|
|
|
if (p_ble_cb->suspended_rl_state & BTM_BLE_RL_ADV)
|
|
btm_ble_start_adv();
|
|
|
|
if (p_ble_cb->suspended_rl_state & BTM_BLE_RL_SCAN)
|
|
btm_ble_start_scan();
|
|
|
|
if (p_ble_cb->suspended_rl_state & BTM_BLE_RL_INIT)
|
|
btm_ble_resume_bg_conn();
|
|
|
|
p_ble_cb->suspended_rl_state = BTM_BLE_RL_IDLE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_vendor_enable_irk_feature
|
|
**
|
|
** Description This function is called to enable or disable the RRA
|
|
** offloading feature.
|
|
**
|
|
** Parameters enable: enable or disable the RRA offloading feature
|
|
**
|
|
** Returns BTM_SUCCESS if successful
|
|
**
|
|
*******************************************************************************/
|
|
tBTM_STATUS btm_ble_vendor_enable_irk_feature(BOOLEAN enable)
|
|
{
|
|
UINT8 param[20], *p;
|
|
tBTM_STATUS st = BTM_MODE_UNSUPPORTED;
|
|
|
|
p = param;
|
|
memset(param, 0, 20);
|
|
|
|
/* select feature based on control block settings */
|
|
UINT8_TO_STREAM(p, BTM_BLE_META_IRK_ENABLE);
|
|
UINT8_TO_STREAM(p, enable ? 0x01 : 0x00);
|
|
|
|
st = BTM_VendorSpecificCommand (HCI_VENDOR_BLE_RPA_VSC, BTM_BLE_IRK_ENABLE_LEN,
|
|
param, btm_ble_resolving_list_vsc_op_cmpl);
|
|
|
|
return st;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_exe_disable_resolving_list
|
|
**
|
|
** Description execute resolving list disable
|
|
**
|
|
** Returns none
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN btm_ble_exe_disable_resolving_list(void)
|
|
{
|
|
if (!btm_ble_suspend_resolving_list_activity())
|
|
return FALSE;
|
|
|
|
if (!controller_get_interface()->supports_ble_privacy())
|
|
btm_ble_vendor_enable_irk_feature(FALSE);
|
|
else
|
|
btsnd_hcic_ble_set_addr_resolution_enable(FALSE);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_exe_enable_resolving_list
|
|
**
|
|
** Description enable LE resolve address list
|
|
**
|
|
** Returns none
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_exe_enable_resolving_list(void)
|
|
{
|
|
if (!btm_ble_suspend_resolving_list_activity())
|
|
return;
|
|
|
|
if (!controller_get_interface()->supports_ble_privacy())
|
|
btm_ble_vendor_enable_irk_feature(TRUE);
|
|
else
|
|
btsnd_hcic_ble_set_addr_resolution_enable(TRUE);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_disable_resolving_list
|
|
**
|
|
** Description Disable LE Address resolution
|
|
**
|
|
** Returns none
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN btm_ble_disable_resolving_list(UINT8 rl_mask, BOOLEAN to_resume )
|
|
{
|
|
UINT8 rl_state = btm_cb.ble_ctr_cb.rl_state;
|
|
|
|
/* if controller does not support RPA offloading or privacy 1.2, skip */
|
|
if (controller_get_interface()->get_ble_resolving_list_max_size()== 0)
|
|
return FALSE;
|
|
|
|
btm_cb.ble_ctr_cb.rl_state &= ~rl_mask;
|
|
|
|
if (rl_state != BTM_BLE_RL_IDLE && btm_cb.ble_ctr_cb.rl_state == BTM_BLE_RL_IDLE)
|
|
{
|
|
if (btm_ble_exe_disable_resolving_list())
|
|
{
|
|
if (to_resume)
|
|
btm_ble_resume_resolving_list_activity();
|
|
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_resolving_list_load_dev
|
|
**
|
|
** Description This function add a device which is using RPA into white list
|
|
**
|
|
** Parameters pointer to device security record
|
|
**
|
|
** Returns TRUE if device added, otherwise falase.
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN btm_ble_resolving_list_load_dev(tBTM_SEC_DEV_REC *p_dev_rec)
|
|
{
|
|
BOOLEAN rt = FALSE;
|
|
UINT8 rl_mask = btm_cb.ble_ctr_cb.rl_state;
|
|
|
|
BTM_TRACE_DEBUG("%s btm_cb.ble_ctr_cb.privacy_mode = %d\n", __func__,
|
|
btm_cb.ble_ctr_cb.privacy_mode);
|
|
|
|
/* if controller does not support RPA offloading or privacy 1.2, skip */
|
|
if (controller_get_interface()->get_ble_resolving_list_max_size() == 0)
|
|
return FALSE;
|
|
|
|
BTM_TRACE_DEBUG("%s btm_cb.ble_ctr_cb.privacy_mode = %d\n",
|
|
__func__, btm_cb.ble_ctr_cb.privacy_mode);
|
|
|
|
/* only add RPA enabled device into resolving list */
|
|
if (p_dev_rec != NULL && /* RPA is being used and PID is known */
|
|
(p_dev_rec->sec_flags & BTM_SEC_IN_USE) != 0 &&
|
|
((p_dev_rec->ble.key_type & BTM_LE_KEY_PID) != 0 ||
|
|
(p_dev_rec->ble.key_type & BTM_LE_KEY_LID) != 0))
|
|
{
|
|
if (!(p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) &&
|
|
btm_ble_brcm_find_resolving_pending_entry(p_dev_rec->bd_addr,
|
|
BTM_BLE_META_ADD_IRK_ENTRY) == FALSE)
|
|
{
|
|
if (btm_cb.ble_ctr_cb.resolving_list_avail_size > 0)
|
|
{
|
|
if (rl_mask)
|
|
{
|
|
if (!btm_ble_disable_resolving_list (rl_mask, FALSE))
|
|
return FALSE;
|
|
}
|
|
|
|
btm_ble_update_resolving_list(p_dev_rec->bd_addr, TRUE);
|
|
if (controller_get_interface()->supports_ble_privacy())
|
|
{
|
|
BD_ADDR dummy_bda = {0};
|
|
UINT8 *peer_irk = p_dev_rec->ble.keys.irk;
|
|
UINT8 *local_irk = btm_cb.devcb.id_keys.irk;
|
|
|
|
if (memcmp(p_dev_rec->ble.static_addr, dummy_bda, BD_ADDR_LEN) == 0)
|
|
{
|
|
memcpy(p_dev_rec->ble.static_addr, p_dev_rec->bd_addr, BD_ADDR_LEN);
|
|
p_dev_rec->ble.static_addr_type = p_dev_rec->ble.ble_addr_type;
|
|
}
|
|
|
|
BTM_TRACE_DEBUG("%s:adding device to controller resolving list\n", __func__);
|
|
// use identical IRK for now
|
|
rt = btsnd_hcic_ble_add_device_resolving_list(p_dev_rec->ble.static_addr_type,
|
|
p_dev_rec->ble.static_addr, peer_irk, local_irk);
|
|
}
|
|
else
|
|
{
|
|
UINT8 param[40] = {0};
|
|
UINT8 *p = param;
|
|
|
|
UINT8_TO_STREAM(p, BTM_BLE_META_ADD_IRK_ENTRY);
|
|
ARRAY_TO_STREAM(p, p_dev_rec->ble.keys.irk, BT_OCTET16_LEN);
|
|
UINT8_TO_STREAM(p, p_dev_rec->ble.static_addr_type);
|
|
BDADDR_TO_STREAM(p,p_dev_rec->ble.static_addr);
|
|
|
|
if (BTM_VendorSpecificCommand (HCI_VENDOR_BLE_RPA_VSC,
|
|
BTM_BLE_META_ADD_IRK_LEN,
|
|
param,
|
|
btm_ble_resolving_list_vsc_op_cmpl)
|
|
== BTM_CMD_STARTED)
|
|
rt = TRUE;
|
|
}
|
|
|
|
if (rt)
|
|
btm_ble_enq_resolving_list_pending(p_dev_rec->bd_addr,
|
|
BTM_BLE_META_ADD_IRK_ENTRY);
|
|
|
|
/* if resolving list has been turned on, re-enable it */
|
|
if (rl_mask)
|
|
btm_ble_enable_resolving_list(rl_mask);
|
|
else
|
|
btm_ble_enable_resolving_list(BTM_BLE_RL_INIT);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BTM_TRACE_ERROR("Device already in Resolving list\n");
|
|
rt = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BTM_TRACE_DEBUG("Device not a RPA enabled device\n");
|
|
}
|
|
return rt;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_resolving_list_remove_dev
|
|
**
|
|
** Description This function removes the device from resolving list
|
|
**
|
|
** Parameters
|
|
**
|
|
** Returns status
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_resolving_list_remove_dev(tBTM_SEC_DEV_REC *p_dev_rec)
|
|
{
|
|
UINT8 rl_mask = btm_cb.ble_ctr_cb.rl_state;
|
|
|
|
BTM_TRACE_EVENT ("%s\n", __func__);
|
|
if (rl_mask)
|
|
{
|
|
if (!btm_ble_disable_resolving_list (rl_mask, FALSE))
|
|
return;
|
|
}
|
|
|
|
if ((p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) &&
|
|
btm_ble_brcm_find_resolving_pending_entry(p_dev_rec->bd_addr,
|
|
BTM_BLE_META_REMOVE_IRK_ENTRY) == FALSE)
|
|
{
|
|
btm_ble_update_resolving_list( p_dev_rec->bd_addr, FALSE);
|
|
btm_ble_remove_resolving_list_entry(p_dev_rec);
|
|
}
|
|
else
|
|
{
|
|
BTM_TRACE_DEBUG("Device not in resolving list\n");
|
|
}
|
|
|
|
/* if resolving list has been turned on, re-enable it */
|
|
if (rl_mask)
|
|
btm_ble_enable_resolving_list(rl_mask);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_enable_resolving_list
|
|
**
|
|
** Description enable LE resolve address list
|
|
**
|
|
** Returns none
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_enable_resolving_list(UINT8 rl_mask)
|
|
{
|
|
UINT8 rl_state = btm_cb.ble_ctr_cb.rl_state;
|
|
|
|
btm_cb.ble_ctr_cb.rl_state |= rl_mask;
|
|
if (rl_state == BTM_BLE_RL_IDLE &&
|
|
btm_cb.ble_ctr_cb.rl_state != BTM_BLE_RL_IDLE &&
|
|
controller_get_interface()->get_ble_resolving_list_max_size() != 0)
|
|
{
|
|
btm_ble_exe_enable_resolving_list();
|
|
btm_ble_resume_resolving_list_activity();
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_resolving_list_empty
|
|
**
|
|
** Description check to see if resoving list is empty or not
|
|
**
|
|
** Returns TRUE: empty; FALSE non-empty
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN btm_ble_resolving_list_empty(void)
|
|
{
|
|
return (controller_get_interface()->get_ble_resolving_list_max_size() ==
|
|
btm_cb.ble_ctr_cb.resolving_list_avail_size);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_enable_resolving_list_for_platform
|
|
**
|
|
** Description enable/disable resolving list feature depending on if any
|
|
** resolving list is empty and whitelist is involoved in the
|
|
** operation.
|
|
**
|
|
** Returns none
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_enable_resolving_list_for_platform (UINT8 rl_mask)
|
|
{
|
|
/* if controller does not support, skip */
|
|
if (controller_get_interface()->get_ble_resolving_list_max_size() == 0)
|
|
return;
|
|
|
|
if (btm_cb.ble_ctr_cb.wl_state == BTM_BLE_WL_IDLE)
|
|
{
|
|
if (controller_get_interface()->get_ble_resolving_list_max_size() >
|
|
btm_cb.ble_ctr_cb.resolving_list_avail_size)
|
|
btm_ble_enable_resolving_list(rl_mask);
|
|
else
|
|
btm_ble_disable_resolving_list(rl_mask, TRUE);
|
|
return;
|
|
}
|
|
|
|
tBTM_SEC_DEV_REC *p_dev = &btm_cb.sec_dev_rec[0];
|
|
for (UINT8 i = 0; i < BTM_SEC_MAX_DEVICE_RECORDS; i ++, p_dev ++)
|
|
{
|
|
if ((p_dev->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) &&
|
|
(p_dev->ble.in_controller_list & BTM_WHITE_LIST_BIT))
|
|
{
|
|
btm_ble_enable_resolving_list(rl_mask);
|
|
return;
|
|
}
|
|
}
|
|
btm_ble_disable_resolving_list(rl_mask, TRUE);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_resolving_list_init
|
|
**
|
|
** Description Initialize resolving list in host stack
|
|
**
|
|
** Parameters Max resolving list size
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_resolving_list_init(UINT8 max_irk_list_sz)
|
|
{
|
|
tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
|
|
UINT8 irk_mask_size = (max_irk_list_sz % 8) ?
|
|
(max_irk_list_sz/8 + 1) : (max_irk_list_sz/8);
|
|
|
|
if (max_irk_list_sz > 0)
|
|
{
|
|
p_q->resolve_q_random_pseudo = (BD_ADDR *)GKI_getbuf(sizeof(BD_ADDR) * max_irk_list_sz);
|
|
p_q->resolve_q_action = (UINT8 *)GKI_getbuf(max_irk_list_sz);
|
|
|
|
/* RPA offloading feature */
|
|
if (btm_cb.ble_ctr_cb.irk_list_mask == NULL)
|
|
btm_cb.ble_ctr_cb.irk_list_mask = (UINT8 *)GKI_getbuf(irk_mask_size);
|
|
|
|
BTM_TRACE_DEBUG ("%s max_irk_list_sz = %d", __func__, max_irk_list_sz);
|
|
}
|
|
|
|
controller_get_interface()->set_ble_resolving_list_max_size(max_irk_list_sz);
|
|
btm_ble_clear_resolving_list();
|
|
btm_cb.ble_ctr_cb.resolving_list_avail_size = max_irk_list_sz;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function btm_ble_resolving_list_cleanup
|
|
**
|
|
** Description Cleanup resolving list dynamic memory
|
|
**
|
|
** Parameters
|
|
**
|
|
** Returns void
|
|
**
|
|
*******************************************************************************/
|
|
void btm_ble_resolving_list_cleanup(void)
|
|
{
|
|
tBTM_BLE_RESOLVE_Q *p_q = &btm_cb.ble_ctr_cb.resolving_list_pend_q;
|
|
|
|
if (p_q->resolve_q_random_pseudo)
|
|
GKI_freebuf(p_q->resolve_q_random_pseudo);
|
|
|
|
if (p_q->resolve_q_action)
|
|
GKI_freebuf(p_q->resolve_q_action);
|
|
|
|
controller_get_interface()->set_ble_resolving_list_max_size(0);
|
|
if (btm_cb.ble_ctr_cb.irk_list_mask)
|
|
GKI_freebuf(btm_cb.ble_ctr_cb.irk_list_mask);
|
|
|
|
btm_cb.ble_ctr_cb.irk_list_mask = NULL;
|
|
}
|
|
#endif
|