pinebuds/services/nvrecord/nvrecord_ble.c

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2022-08-15 04:20:27 -05:00
/***************************************************************************
*
* Copyright 2015-2019 BES.
* All rights reserved. All unpublished rights reserved.
*
* No part of this work may be used or reproduced in any form or by any
* means, or stored in a database or retrieval system, without prior written
* permission of BES.
*
* Use of this work is governed by a license granted by BES.
* This work contains confidential and proprietary information of
* BES. which is protected by copyright, trade secret,
* trademark and other intellectual property rights.
*
****************************************************************************/
#if !defined(NEW_NV_RECORD_ENABLED)
#include <assert.h>
#include "nvrecord.h"
#include "nvrecord_ble.h"
#include "hal_trace.h"
#include "hal_timer.h"
#include "co_math.h"
#include "tgt_hardware.h"
#define ble_nv_debug
#ifdef ble_nv_debug
#define ble_trace TRACE
#else
#define ble_trace
#endif
extern nv_record_struct nv_record_config;
static struct Ble_nvrecord *nvrecord_ble_p = NULL;
static bool blerec_specific_value_prepare(const BleDeviceinfo* param_rec)
{
// Preparations before adding new ble record:
// 1. If not existing. Check the record count. If it's BLE_RECORD_NUM,
// move 0-(BLE_RECORD_NUM-2) right side by one slot, to discard the last one and
// leave slot 0, decrease the record number.
// If it's smaller than BLE_RECORD_NUM, move 0-(count-1) right side by one slot, leave slot 0,
// don't change the record number.
// 2. If existing already and the location is entryToFree , move 0-(entryToFree-1)
// right side by one slot, leave slot 0. Decrease the record number for adding the new one.
bool isEntryExisting = false;
uint8_t entryToFree = 0;
struct Ble_nvrecord *dest_ptr;
dest_ptr = nvrecord_ble_p;
TRACE(3,"%s start search addr %08x list_num=%d", __func__, (uint32_t)dest_ptr, dest_ptr->saved_list_num);
if (dest_ptr->saved_list_num > 0)
{
for (uint8_t i = 0; i < dest_ptr->saved_list_num; i++)
{
if (0 == memcmp(dest_ptr->ble_nv[i].LTK, param_rec->LTK, BLE_LTK_SIZE))
{
ble_trace(2,"%s Find the existing entry %d", __func__, i);
DUMP8("%02x ", (uint8_t *)param_rec, sizeof(BleDeviceinfo));
DUMP8("%02x ", (uint8_t *)&dest_ptr->ble_nv[i], sizeof(BleDeviceinfo));
if (!memcmp((uint8_t *)param_rec, (uint8_t *)&dest_ptr->ble_nv[i], sizeof(BleDeviceinfo)))
{
ble_trace(0,"The new coming BLE device info is the same as the recorded.");
return false;
}
memset(&(dest_ptr->ble_nv[i]), 0, sizeof(BleDeviceinfo));
entryToFree = i;
dest_ptr->saved_list_num--;
isEntryExisting = true;
break;
}
}
}
else
{
return true;
}
if (!isEntryExisting)
{
if (BLE_RECORD_NUM == dest_ptr->saved_list_num)
{
TRACE(0,"<=====>blerec list is full,delete the oldest and add param_rec to list");
for (uint8_t k = 0;k < BLE_RECORD_NUM - 1;k++)
{
memcpy(&(dest_ptr->ble_nv[BLE_RECORD_NUM - 1 - k]),
&(dest_ptr->ble_nv[BLE_RECORD_NUM - 2 - k]),
sizeof(BleDeviceinfo));
}
dest_ptr->saved_list_num--;
}
else
{
for (uint8_t k = 0;k < dest_ptr->saved_list_num;k++)
{
memcpy(&(dest_ptr->ble_nv[dest_ptr->saved_list_num - k]),
&(dest_ptr->ble_nv[dest_ptr->saved_list_num - 1 - k]),
sizeof(BleDeviceinfo));
}
}
return true;
}
else
{
for(uint8_t list_updata = 0;list_updata < entryToFree; list_updata++)
{
memcpy(&(dest_ptr->ble_nv[entryToFree - list_updata]),
&(dest_ptr->ble_nv[entryToFree - list_updata - 1]),
sizeof(BleDeviceinfo));
}
}
return true;
}
void nv_record_blerec_init(void)
{
if (NULL == nvrecord_ble_p)
{
nvrecord_ble_p = (struct Ble_nvrecord *)nvrec_config_get_int(nv_record_config.config,
(const char *)section_name_ble_nvds, (const char *)NV_RECORD_BLE_KEY, NVRAM_BLE_INVALID);
}
if (nvrecord_ble_p == (struct Ble_nvrecord *)NVRAM_BLE_INVALID){
nvrecord_ble_p = (struct Ble_nvrecord *)pool_malloc(sizeof(struct Ble_nvrecord));
if (!nvrecord_ble_p){
ASSERT(0,"%s ble pool_malloc failed",__func__);
return;
}
TRACE(1,"ble nv malloc addr %08x", (uint32_t)nvrecord_ble_p);
memset(nvrecord_ble_p, 0, sizeof(struct Ble_nvrecord));
nvrecord_ble_p->saved_list_num = 0;//init saved num
uint8_t index;
//avoid ble irk collision low probability
uint32_t generatedSeed = hal_sys_timer_get();
for (uint8_t index = 0; index < sizeof(bt_addr); index++)
{
generatedSeed ^= (((uint32_t)(bt_addr[index])) << (hal_sys_timer_get()&0xF));
}
srand(generatedSeed);
// generate a new IRK
for (index = 0; index < BLE_IRK_SIZE; index++)
{
nvrecord_ble_p->loc_irk[index] = (uint8_t)co_rand_word();
}
nvrec_config_set_int(nv_record_config.config, section_name_ble_nvds,
(const char *)NV_RECORD_BLE_KEY,(int)nvrecord_ble_p);
}
}
void nv_record_blerec_get_local_irk(uint8_t* pIrk)
{
memcpy(pIrk, nvrecord_ble_p->loc_irk, BLE_IRK_SIZE);
}
bool nv_record_blerec_get_bd_addr_from_irk(uint8_t* pBdAddr, uint8_t* pIrk)
{
if (nvrecord_ble_p->saved_list_num > 0)
{
for (uint8_t index = 0; index < nvrecord_ble_p->saved_list_num; index++)
{
if (!memcmp(pIrk, nvrecord_ble_p->ble_nv[index].IRK, BLE_IRK_SIZE))
{
memcpy(pBdAddr, nvrecord_ble_p->ble_nv[index].peer_bleAddr, BLE_ADDR_SIZE);
return true;
}
}
return false;
}
else
{
return false;
}
}
int nv_record_blerec_add(const BleDeviceinfo *param_rec)
{
int nRet = 0;
uint8_t isNeedToUpdateNv = true;
isNeedToUpdateNv = blerec_specific_value_prepare(param_rec);
if (isNeedToUpdateNv)
{
//add device info into nv struct
memcpy(nvrecord_ble_p->ble_nv[0].peer_bleAddr, param_rec->peer_bleAddr, BLE_ADDR_SIZE);//addr
nvrecord_ble_p->ble_nv[0].EDIV = param_rec->EDIV;//EDIV
memcpy(nvrecord_ble_p->ble_nv[0].RANDOM, param_rec->RANDOM, BLE_ENC_RANDOM_SIZE);//RANDOM
memcpy(nvrecord_ble_p->ble_nv[0].LTK, param_rec->LTK, BLE_LTK_SIZE);//LTK
memcpy(nvrecord_ble_p->ble_nv[0].IRK, param_rec->IRK, BLE_IRK_SIZE);//IRK
nvrecord_ble_p->ble_nv[0].bonded = param_rec->bonded;//bond status
nvrecord_ble_p->saved_list_num++;//updata saved num
nv_record_update_runtime_userdata();
TRACE(2,"%s CURRENT BLE LIST NUM=%d", __func__, nvrecord_ble_p->saved_list_num);
}
#ifdef ble_nv_debug
for (uint8_t k = 0;k < nvrecord_ble_p->saved_list_num;k++){
TRACE(0,"=========================================");
TRACE(1,"Num %d BLE record:", k);
TRACE(0,"BLE addr:");
DUMP8("%02x ", (uint8_t *)nvrecord_ble_p->ble_nv[k].peer_bleAddr, BLE_ADDR_SIZE);
TRACE(1,"NV EDIV %d and random is:", nvrecord_ble_p->ble_nv[k].EDIV);
DUMP8("%02x ", (uint8_t *)nvrecord_ble_p->ble_nv[k].RANDOM, BLE_ENC_RANDOM_SIZE);
TRACE(0,"NV LTK:");
DUMP8("%02x ", (uint8_t *)nvrecord_ble_p->ble_nv[k].LTK, BLE_LTK_SIZE);
TRACE(0,"NV irk:");
DUMP8("%02x ", (uint8_t *)nvrecord_ble_p->ble_nv[k].IRK, BLE_IRK_SIZE);
}
#endif
return nRet;
}
uint8_t nv_record_ble_fill_irk(uint8_t* irkToFill)
{
struct Ble_nvrecord *find_ptr;
find_ptr = (struct Ble_nvrecord *)nvrec_config_get_int(nv_record_config.config,
(const char *)section_name_ble_nvds,
(const char *)NV_RECORD_BLE_KEY,
NVRAM_BLE_INVALID);
TRACE(2,"%s find_ptr 0x%x", __FUNCTION__, (uint32_t)find_ptr);
if (((struct Ble_nvrecord *)NVRAM_BLE_INVALID == find_ptr) ||
(0 == find_ptr->saved_list_num))
{
return 0;
}
if (find_ptr->saved_list_num > 0)
{
for (uint8_t index = 0; index < find_ptr->saved_list_num; index++)
{
memcpy(irkToFill + index*BLE_IRK_SIZE, find_ptr->ble_nv[index].IRK, BLE_IRK_SIZE);
}
return find_ptr->saved_list_num;
}
else
{
return 0;
}
}
//when master send encription req,if bonded,use ltk to bonding again(skip the pair step)
bool nv_record_ble_record_find_ltk_through_static_bd_addr(uint8_t* pBdAddr, uint8_t *ltk)
{
struct Ble_nvrecord *find_ptr;
find_ptr = (struct Ble_nvrecord *)nvrec_config_get_int(nv_record_config.config, (const char *)section_name_ble_nvds,(const char *)NV_RECORD_BLE_KEY, NVRAM_BLE_INVALID);
if (find_ptr == (struct Ble_nvrecord *)NVRAM_BLE_INVALID)
{
TRACE(1,"%s find data failed",__func__);
return false;
}
for (uint8_t find_index=0; find_index<find_ptr->saved_list_num; find_index++)
{
if (!memcmp(find_ptr->ble_nv[find_index].peer_bleAddr, pBdAddr, BLE_ADDR_SIZE))
{
ble_trace(2,"%s FIND LTK IN NV SUCCESS %08x", __func__, (uint32_t)&find_ptr->ble_nv[find_index].LTK);
memcpy(ltk, find_ptr->ble_nv[find_index].LTK, BLE_LTK_SIZE);
return true;
}
}
return false;
}
bool nv_record_ble_record_Once_a_device_has_been_bonded(void)
{
struct Ble_nvrecord *find_ptr;
find_ptr=(struct Ble_nvrecord *)nvrec_config_get_int(nv_record_config.config, (const char *)section_name_ble_nvds,(const char *)NV_RECORD_BLE_KEY, NVRAM_BLE_INVALID);
if (find_ptr == (struct Ble_nvrecord *)NVRAM_BLE_INVALID){
return false;
}
for(uint8_t find_index=0;find_index<find_ptr->saved_list_num;find_index++){
if(find_ptr->ble_nv[find_index].bonded==true){
return true;
}
}
return false;
}
void nv_record_ble_delete_entry(uint8_t* pBdAddr)
{
struct Ble_nvrecord *find_ptr;
find_ptr = (struct Ble_nvrecord *)nvrec_config_get_int(nv_record_config.config,
(const char *)section_name_ble_nvds,
(const char *)NV_RECORD_BLE_KEY,
NVRAM_BLE_INVALID);
if (((struct Ble_nvrecord *)NVRAM_BLE_INVALID == find_ptr) ||
(0 == find_ptr->saved_list_num))
{
return;
}
int8_t indexToDelete = -1;
for (uint8_t find_index=0; find_index < find_ptr->saved_list_num; find_index++)
{
if (!memcmp(find_ptr->ble_nv[find_index].peer_bleAddr, pBdAddr, BLE_ADDR_SIZE))
{
indexToDelete = find_index;
break;
}
}
if (indexToDelete >= 0)
{
uint8_t index;
for (index = indexToDelete; index < find_ptr->saved_list_num - 1; index++)
{
memcpy(&(find_ptr->ble_nv[index]),
&(find_ptr->ble_nv[index + 1]),
sizeof(BleDeviceinfo));
}
memset((uint8_t *)&(find_ptr->ble_nv[index]), 0, sizeof(BleDeviceinfo));
find_ptr->saved_list_num--;
nv_record_update_runtime_userdata();
}
}
#endif // !defined(NEW_NV_RECORD_ENABLED)