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Device.h
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Device.h
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//- -----------------------------------------------------------------------------------------------------------------------
// AskSin++
// 2016-10-31 papa Creative Commons - http:https://creativecommons.org/licenses/by-nc-sa/3.0/de/
//- -----------------------------------------------------------------------------------------------------------------------
#ifndef __DEVICE_H__
#define __DEVICE_H__
#include "AskSinPP.h"
#include "Sign.h"
#include "HMID.h"
#include "Channel.h"
#include "ChannelList.h"
#include "Message.h"
#include "Radio.h"
#include "Led.h"
#include "Buzzer.h"
#include "Activity.h"
#ifdef ARDUINO_ARCH_RP2040
#include "pico/unique_id.h"
#endif
#ifdef USE_HW_SERIAL
#if defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__) || defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega328PB__)
#include <avr/boot.h>
#elif defined (ARDUINO_ARCH_STM32F1)
#elif defined (ARDUINO_ARCH_STM32) && defined (STM32L1xx)
#elif defined (ARDUINO_ARCH_ESP32)
#elif defined (ARDUINO_ARCH_RP2040)
#elif defined (ARDUINO_ARCH_EFM32)
#else
#error Using Hardware serial is not supported on MCU type currently used
#endif
#endif
#if defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__) || defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__)
#define OTA_CONFIG_START 0xffe0 // start address of 16 byte config data in bootloader
#define OTA_MODEL_START 0xfff0 // start address of 2 byte model id in bootloader
#define OTA_SERIAL_START 0xfff2 // start address of 10 byte serial number in bootloader
#define OTA_HMID_START 0xfffc // start address of 3 byte device id in bootloader
#else
#define OTA_CONFIG_START 0x7fe0 // start address of 16 byte config data in bootloader
#define OTA_MODEL_START 0x7ff0 // start address of 2 byte model id in bootloader
#define OTA_SERIAL_START 0x7ff2 // start address of 10 byte serial number in bootloader
#define OTA_HMID_START 0x7ffc // start address of 3 byte device id in bootloader
#endif
namespace as {
class DeviceType {
public:
enum Types {
AlarmControl = 0x01,
Switch = 0x10,
OutputUnit = 0x12,
Dimmer = 0x20,
BlindActuator = 0x30,
ClimateControl = 0x39,
Remote = 0x40,
Sensor = 0x41,
Swi = 0x42,
PushButton = 0x43,
SingleButton = 0x44,
PowerMeter = 0x51,
Thermostat = 0x58,
KFM100 = 0x60,
THSensor = 0x70,
ThreeStateSensor = 0x80,
MotionDetector = 0x81,
KeyMatic = 0xC0,
WinMatic = 0xC1,
TipTronic = 0xC3,
SmokeDetector = 0xCD,
};
};
struct DeviceInfo {
uint8_t DeviceID[3];
char Serial[11];
uint8_t DeviceModel[2];
uint8_t Firmware;
uint8_t DeviceType;
uint8_t DeviceInfo[2];
};
template <class HalType,class List0Type=List0>
class Device {
public:
typedef typename HalType::LedType LedType;
typedef typename HalType::BatteryType BatteryType;
typedef typename HalType::RadioType RadioType;
typedef typename HalType::BuzzerType BuzzerType;
typedef List0Type List0;
private:
HalType* hal;
List0Type& list0;
uint8_t msgcount;
HMID lastdev;
uint8_t lastmsg;
#ifdef USE_HW_SERIAL
uint8_t device_id[3];
#endif
protected:
Message msg;
KeyStore kstore;
const DeviceInfo& info;
bool cfgChanged; // :1; take ~60byte more flash
uint8_t numChannels; // :7;
public:
Device (const DeviceInfo& i,uint16_t addr,List0Type& l,uint8_t ch) : hal(0), list0(l), msgcount(0), lastmsg(0), kstore(addr), info(i), cfgChanged(false), numChannels(ch) {
#ifdef USE_HW_SERIAL
device_id[0]=0x00;
#endif
}
virtual ~Device () {}
LedType& led () { return hal->led; }
BatteryType& battery () { return hal->battery; }
const BatteryType& battery () const { return hal->battery; }
RadioType& radio () { return hal->radio; }
BuzzerType& buzzer () { return hal->buzzer; }
KeyStore& keystore () { return this->kstore; }
Activity& activity () { return hal->activity; }
Message& message () { return msg; }
bool hasConfigChanged () {
bool value = cfgChanged;
cfgChanged = false;
return value;
}
void hasConfigChanged(bool c) {
cfgChanged = c;
}
void channels (uint8_t num) {
numChannels = num;
}
uint8_t channels () const {
return numChannels;
}
bool hasChannel (uint8_t number) const {
return number != 0 && number <= channels();
}
bool isRepeat(const Message& m) {
if( m.isRepeated() && lastdev == m.from() && lastmsg == m.count() ) {
return true;
}
// store last message data
lastdev = m.from();
lastmsg = m.count();
return false;
}
void setHal (HalType& h) {
hal = &h;
}
HalType& getHal () {
return *hal;
}
StorageConfig getConfigArea () {
return StorageConfig(kstore.address()-STORAGE_CFG_START);
}
uint8_t getConfigByte (uint8_t offset) {
uint8_t data=0;
#ifdef USE_OTA_BOOTLOADER
if( offset < 16 ) {
HalType::pgm_read(&data,OTA_CONFIG_START+offset,1);
}
#elif defined(DEVICE_CONFIG)
uint8_t tmp[] = {DEVICE_CONFIG};
if( offset < sizeof(tmp) ) {
data = tmp[offset];
}
#endif
return data;
}
void getDeviceID (HMID& id) {
#ifdef USE_OTA_BOOTLOADER
HalType::pgm_read((uint8_t*)&id,OTA_HMID_START,sizeof(id));
#elif defined(USE_HW_SERIAL)
if (device_id[0] == 0x00) {
#ifdef ARDUINO_ARCH_STM32F1
uint32_t crc = AskSinBase::crc24((uint8_t*)0x1FFFF7E8,12);
device_id[0] = (uint8_t)(crc & 0x000000ff);
device_id[1] = (uint8_t)(crc >> 8 & 0x000000ff);
device_id[2] = (uint8_t)(crc >> 16 & 0x000000ff);
#elif defined (ARDUINO_ARCH_STM32) && (defined STM32L1xx)
uint32_t crc = AskSinBase::crc24((uint8_t*)0x1FF80050, 12);
device_id[0] = (uint8_t)(crc & 0x000000ff);
device_id[1] = (uint8_t)(crc >> 8 & 0x000000ff);
device_id[2] = (uint8_t)(crc >> 16 & 0x000000ff);
#elif defined (ARDUINO_ARCH_EFM32) || defined (ARDUINO_ARCH_ESP32) || defined (ARDUINO_ARCH_RP2040)
#if defined (ARDUINO_ARCH_EFM32)
uint64_t chipId = SYSTEM_GetUnique();
#elif defined (ARDUINO_ARCH_ESP32)
uint64_t chipId = ESP.getEfuseMac();
#elif defined (ARDUINO_ARCH_RP2040)
pico_unique_board_id_t chipId;
pico_get_unique_board_id(&chipId);
#endif
uint8_t *chipIdArray = *reinterpret_cast<uint8_t(*)[sizeof(uint64_t)]>(&chipId);
uint32_t crc = AskSinBase::crc24(chipIdArray, 8);
device_id[0] = (uint8_t)(crc & 0x000000ff);
device_id[1] = (uint8_t)(crc >> 8 & 0x000000ff);
device_id[2] = (uint8_t)(crc >> 16 & 0x000000ff);
#else
device_id[0] = boot_signature_byte_get(21);
device_id[1] = boot_signature_byte_get(22);
device_id[2] = boot_signature_byte_get(23);
#endif
}
id = HMID(device_id);
#else
uint8_t ids[3];
memcpy_P(ids,info.DeviceID,3);
id = HMID(ids);
#endif
}
void getDeviceSerial (uint8_t* serial) {
#ifdef USE_OTA_BOOTLOADER
HalType::pgm_read((uint8_t*)serial,OTA_SERIAL_START,10);
#elif defined (USE_HW_SERIAL)
#if defined (ARDUINO_ARCH_STM32F1) || defined (ARDUINO_ARCH_EFM32) || defined (ARDUINO_ARCH_ESP32) || defined (ARDUINO_ARCH_RP2040) || (defined (ARDUINO_ARCH_STM32) && (defined STM32L1xx))
memcpy_P(serial,info.Serial,4);
uint8_t* s = serial+4;
for( int i=0; i<3; ++i ) {
uint8_t d = device_id[i];
*s++ = AskSinBase::toChar(d >> 4);
*s++ = AskSinBase::toChar(d & 0x0f);
}
#else
for (uint8_t i = 0; i < 3; i++) {
serial[i] = (boot_signature_byte_get(i + 14) % 26) + 65; // Char A-Z
}
for (uint8_t i = 3; i < 10; i++) {
serial[i] = (boot_signature_byte_get(i + 14) % 10) + 48; // Char 0-9
}
#endif
#else
memcpy_P(serial,info.Serial,10);
#endif
}
bool isDeviceSerial (const uint8_t* serial) {
uint8_t tmp[10];
getDeviceSerial(tmp);
return memcmp(serial,tmp,10) == 0;
}
bool isDeviceID(const HMID& id) {
HMID me;
getDeviceID(me);
return id == me;
}
void getDeviceModel (uint8_t* model) {
#ifdef USE_OTA_BOOTLOADER
HalType::pgm_read(model,OTA_MODEL_START,2);
#else
memcpy_P(model,info.DeviceModel,sizeof(info.DeviceModel));
#endif
}
void getDeviceInfo (uint8_t* di) {
// first byte is number of channels
#ifdef DEVICE_CHANNEL_COUNT
*di = DEVICE_CHANNEL_COUNT;
#else
*di = this->channels();
#endif
memcpy_P(di+1,info.DeviceInfo,sizeof(info.DeviceInfo));
}
HMID getMasterID () {
return list0.masterid();
}
const List0Type& getList0 () {
return list0;
}
bool pollRadio () {
uint8_t num = radio().read(msg);
// minimal msg is 10 byte
// ignore own messages from radio
if( num >= 10 && isDeviceID(msg.from()) == false ) {
return process(msg);
}
return false;
}
uint8_t nextcount () {
return ++msgcount;
}
virtual void configChanged () {}
virtual bool process(__attribute__((unused)) Message& msg) { return false; }
bool isBroadcastMsg(Message msg) {
return (msg.to() == HMID::broadcast && msg.isPairSerial()) || ( msg.isBroadcast() && (msg.isRemoteEvent() || msg.isSensorEvent()) );
}
bool send(Message& msg,const HMID& to) {
msg.to(to);
getDeviceID(msg.from());
msg.setRpten(); // has to be set always
return send(msg);
}
bool send(Message& msg) {
hal->prepareSend(msg);
bool result = false;
uint8_t maxsend = list0.transmitDevTryMax();
bool ledmode = list0.ledMode();
if( ledmode == 1 ) {
led().set(LedStates::send);
}
while( result == false && maxsend > 0 ) {
result = radio().write(msg,msg.burstRequired());
DPRINT(F("<- "));
msg.dump();
maxsend--;
if( result == true && msg.ackRequired() == true && msg.to().valid() == true ) {
Message response;
if( (result=waitResponse(msg,response,60)) ) { // 600ms
#ifdef USE_AES
if( response.isChallengeAes() == true ) {
AesChallengeMsg& cm = response.aesChallenge();
result = processChallenge(msg,cm.challenge(),cm.keyindex());
}
else
#endif
{
result = response.isAck();
// if we got a Nack - we stop trying to send again
if( response.isNack() ) {
maxsend = 0;
}
// we request wakeup
// we got the flag to stay awake
if( msg.isWakeMeUp() || response.isKeepAwake() ) {
activity().stayAwake(millis2ticks(500));
}
}
}
DPRINT(F("waitAck: ")); DHEX((uint8_t)result); DPRINTLN(F(""));
}
}
if( ledmode == 1 ) {
led().set( result == true ? LedStates::ack : LedStates::nack);
}
return result;
}
void sendAck (Message& msg,uint8_t flag=0x00) {
msg.ack().init(flag);
kstore.addAuth(msg);
send(msg,msg.from());
}
void sendAck2 (Message& msg,uint8_t flag=0x00) {
msg.ack2().init(flag);
kstore.addAuth(msg);
send(msg,msg.from());
}
void sendNack (Message& msg) {
msg.nack().init();
send(msg,msg.from());
}
template <class ChannelType>
void sendAck (Message& msg,ChannelType& ch) {
msg.ackStatus().init(ch,radio().rssi());
ch.patchStatus(msg);
kstore.addAuth(msg);
send(msg,msg.from());
ch.changed(false);
}
void sendDeviceInfo () {
sendDeviceInfo(getMasterID(),nextcount());
}
void sendDeviceInfo (const HMID& to,uint8_t count) {
DeviceInfoMsg& pm = msg.deviceInfo();
pm.init(to,count);
pm.fill(pgm_read_byte(&info.Firmware),pgm_read_byte(&info.DeviceType));
getDeviceModel(pm.model());
getDeviceSerial(pm.serial());
getDeviceInfo(pm.info());
send(msg,to);
}
void sendSerialInfo (const HMID& to,uint8_t count) {
SerialInfoMsg& pm = msg.serialInfo();
pm.init(to,count);
getDeviceSerial(pm.serial());
send(msg,to);
}
template <class ChannelType>
void sendInfoActuatorStatus (const HMID& to,uint8_t count,ChannelType& ch,bool ack=true) {
InfoActuatorStatusMsg& pm = msg.infoActuatorStatus();
pm.init(count,ch,radio().rssi());
if( ack == false ) {
pm.clearAck();
}
ch.patchStatus(msg);
send(msg,to);
ch.changed(false);
}
void sendInfoParamResponsePairs(HMID to,uint8_t count,const GenericList& list) {
InfoParamResponsePairsMsg& pm = msg.infoParamResponsePairs();
// setup message for maximal size
pm.init(count);
uint8_t current=0;
uint8_t* buf=pm.data();
for( int i=0; i<list.getSize(); ++i ) {
*buf++ = list.getRegister(i);
*buf++ = list.getByte(i);
current++;
if( current == 8 ) {
// reset to zero
current=0;
buf=pm.data();
if( send(msg,to) == false ) {
// exit loop in case of error
break;
}
}
}
*buf++ = 0;
*buf++ = 0;
current++;
pm.entries(current);
pm.clearAck();
send(msg,to);
}
template <class ChannelType>
void sendInfoPeerList (HMID to,uint8_t count,const ChannelType& channel) {
InfoPeerListMsg& pm = msg.infoPeerList();
// setup message for maximal size
pm.init(count);
uint8_t current=0;
uint8_t* buf=pm.data();
for( uint8_t i=0; i<channel.peers(); ++i ) {
Peer p = channel.peerat(i);
if( p.valid() == true ) {
memcpy(buf,&p,sizeof(Peer));
buf+=sizeof(Peer);
current++;
if( current == 4 ) {
// reset to zero
current=0;
buf=pm.data();
if( send(msg,to) == false ) {
// exit loop in case of error
break;
}
}
}
}
memset(buf,0,sizeof(Peer));
current++;
pm.entries(current);
pm.clearAck();
send(msg,to);
}
void sendMasterEvent (Message& msg) {
send(msg,getMasterID());
hal->sendPeer();
}
template <class ChannelType>
void sendPeerEvent (Message& msg,const ChannelType& ch,bool forceMessageToMaster=false) {
bool sendtopeer=false;
for( int i=0; i<ch.peers(); ++i ){
Peer p = ch.peerat(i);
if( p.valid() == true ) {
// skip if this is not the first peer of that device
if( ch.peerfor(p) < i ) {
continue;
}
if( isDeviceID(p) == true ) {
// we send to ourself - no ack needed
getDeviceID(msg.from());
msg.to(msg.from());
if( msg.ackRequired() == true ) {
msg.clearAck();
this->process(msg);
msg.setAck();
}
else {
this->process(msg);
}
}
else {
// check if burst needed for peer
typename ChannelType::List4 l4 = ch.getList4(p);
msg.burstRequired( l4.burst() );
send(msg,p);
sendtopeer = true;
}
}
}
// if we have no peer - send to master/broadcast
if( sendtopeer == false || forceMessageToMaster == true ) {
send(msg,getMasterID());
}
// signal that we have sent to peer
hal->sendPeer();
}
template <class ChannelType>
void broadcastPeerEvent (Message& msg,const ChannelType& ch) {
getDeviceID(msg.from());
msg.clearAck();
// check if we are peered to ourself
if( ch.peerfor(msg.from()) < ch.peers() ) {
msg.to(msg.from());
// simply process
this->process(msg);
}
HMID todev;
bool burst=false;
// go over all peers, get first external device
// check if one of the peers needs a burst to wakeup
for( uint8_t i=0; i<ch.peers(); ++i ) {
Peer p = ch.peerat(i);
if( p.valid() == true ) {
if( msg.from() != p ) {
if( todev.valid() == false ) {
todev = p;
}
typename ChannelType::List4 l4 = ch.getList4(p);
burst |= l4.burst();
}
}
}
// if we have no external device - send to master/broadcast
if( todev.valid() == false ) {
todev = getMasterID();
}
// DPRINT("BCAST to: ");todev.dump(); DPRINTLN("\n");
msg.burstRequired(burst);
msg.setBroadcast();
send(msg,todev);
// signal that we have send to peer
hal->sendPeer();
}
template <class ChannelType>
void broadcastEvent (Message& msg,const ChannelType& ch) {
broadcastEvent(msg);
}
void broadcastEvent (Message& msg) {
msg.clearAck();
msg.burstRequired(false);
msg.setBroadcast();
send(msg,HMID::broadcast);
hal->sendPeer();
}
void writeList (const GenericList& list,const uint8_t* data,uint8_t length) {
for( uint8_t i=0; i<length; i+=2, data+=2 ) {
list.writeRegister(*data,*(data+1));
}
}
/*
bool waitForAck(Message& msg,uint8_t timeout) {
do {
if( radio().readAck(msg) == true ) {
return true;
}
_delay_ms(10); // wait 10ms
timeout--;
}
while( timeout > 0 );
return false;
}
*/
bool waitResponse(const Message& msg,Message& response,uint8_t timeout) {
do {
uint8_t num = radio().read(response);
if( num > 0 ) {
DPRINT(F("-> ")); response.dump();
if( msg.count() == response.count() &&
msg.to() == response.from() ) {
return true;
}
}
_delay_ms(10); // wait 10ms
timeout--;
}
while( timeout > 0 );
return false;
}
#ifdef USE_AES
void sendAckAes (Message& msg,const uint8_t* data) {
msg.ackAes().init(data);
send(msg,msg.from());
}
bool requestSignature(const Message& msg) {
// no signature for internal message processing needed
if( isDeviceID(msg.from()) == true ) {
return true;
}
// signing only possible if sender requests ACK
if( msg.ackRequired() == true ) {
AesChallengeMsg signmsg;
aes128_ctx_t ctx;
signmsg.init(msg,kstore.getIndex());
kstore.challengeKey(signmsg.challenge(),kstore.getIndex(),ctx);
// TODO re-send message handling
DPRINT(F("<- ")); signmsg.dump();
radio().write(signmsg,signmsg.burstRequired());
// read answer
if( waitForAesResponse(msg.from(),signmsg,60) == true ) {
AesResponseMsg& response = signmsg.aesResponse();
uint8_t initvector[16];
// DPRINT("AES ");DHEX(response.data(),16);
// fill initial vector with message to sign
kstore.fillInitVector(msg,initvector);
// DPRINT("IV ");DHEX(iv,16);
// decrypt response
uint8_t* data = response.data();
aes128_dec(data,&ctx);
// xor encrypted data with initial vector
kstore.applyVector(data,initvector);
// store data for sending ack
kstore.storeAuth(response.count(),data);
// decrypt response
aes128_dec(data,&ctx);
// DPRINT("r "); DHEX(response.data()+6,10);
// DPRINT("s "); DHEX(msg.buffer(),10);
// compare decrypted message with original message
if( memcmp(data+6,msg.buffer(),10) == 0 ) {
DPRINTLN(F("Signature OK"));
return true;
}
else {
DPRINTLN(F("Signature FAILED"));
}
}
else {
DPRINTLN(F("waitForAesResponse failed"));
}
}
return false;
}
bool processChallenge(const Message& msg,const uint8_t* challenge,uint8_t keyidx) {
aes128_ctx_t ctx;
if( kstore.challengeKey(challenge,keyidx,ctx) == true ) {
DPRINT(F("Process Challenge - Key: "));DHEXLN(keyidx);
AesResponseMsg answer;
answer.init(msg);
uint8_t* data = answer.data();
{
uint8_t initvector[16];
// fill initial vector with message to sign
kstore.fillInitVector(msg,initvector);
for( uint8_t i=0; i<6; ++i ) {
data[i] = (uint8_t)rand();
}
memcpy(data+6,msg.buffer(),10); // TODO - check message to short possible
aes128_enc(data,&ctx);
kstore.applyVector(data,initvector);
aes128_enc(data,&ctx);
}
return send(answer,msg.to());
}
return false;
}
bool waitForAesResponse(const HMID& from,Message& answer,uint8_t timeout) {
do {
uint8_t num = radio().read(answer);
if( num > 0 ) {
DPRINT(F("-> ")); answer.dump();
if( answer.isResponseAes() && from == answer.from() ) {
return true;
}
}
_delay_ms(10); // wait 10ms
timeout--;
}
while( timeout > 0 );
return false;
}
#endif
};
}
#endif