96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
/**
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* The MySensors Arduino library handles the wireless radio link and protocol
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* between your home built sensors/actuators and HA controller of choice.
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* The sensors forms a self healing radio network with optional repeaters. Each
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* repeater and gateway builds a routing tables in EEPROM which keeps track of the
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* network topology allowing messages to be routed to nodes.
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*
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* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
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* Copyright (C) 2013-2015 Sensnology AB
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* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
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*
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* Documentation: http://www.mysensors.org
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* Support Forum: http://forum.mysensors.org
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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*******************************
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*
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* DESCRIPTION
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* Signing support created by Patrick "Anticimex" Fallberg <patrick@fallberg.net>
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* Disabled signing backend. Does not provide any security measures.
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*
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*/
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#include "MyConfig.h"
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#include "MySigning.h"
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#include "MySigningNone.h"
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#define SIGNING_IDENTIFIER (0)
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// Uncomment this to get some useful serial debug info (Serial.print and Serial.println expected)
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//#define DEBUG_SIGNING
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#ifdef DEBUG_SIGNING
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#define DEBUG_SIGNING_PRINTLN(args) Serial.println(args)
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#else
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#define DEBUG_SIGNING_PRINTLN(args)
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#endif
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#ifdef DEBUG_SIGNING
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static void DEBUG_NONE_PRINTBUF(const __FlashStringHelper* str, uint8_t* buf, uint8_t sz)
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{
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int i;
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Serial.println(str);
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for (int i=0; i<sz; i++)
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{
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if (buf[i] < 0x10)
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{
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Serial.print('0'); // Because Serial.print does not 0-pad HEX
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}
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Serial.print(buf[i], HEX);
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}
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Serial.println();
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}
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#else
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#define DEBUG_NONE_PRINTBUF(str, buf, sz)
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#endif
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MySigningNone::MySigningNone() : MySigning() {
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}
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bool MySigningNone::getNonce(MyMessage &msg) {
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(void)msg;
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return true;
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}
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bool MySigningNone::checkTimer() {
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return true;
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}
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bool MySigningNone::putNonce(MyMessage &msg) {
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(void)msg;
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return true;
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}
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bool MySigningNone::signMsg(MyMessage &msg) {
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// If we cannot fit any signature in the message, refuse to sign it
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if (mGetLength(msg) > MAX_PAYLOAD-2) {
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DEBUG_SIGNING_PRINTLN(F("MTOL")); // Message too large for signature to fit
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return false;
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}
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mSetSigned(msg, 1); // make sure signing flag is set before signature is calculated
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msg.data[mGetLength(msg)] = SIGNING_IDENTIFIER; // Add signing identifier
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return true;
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}
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bool MySigningNone::verifyMsg(MyMessage &msg) {
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if (msg.data[mGetLength(msg)] != SIGNING_IDENTIFIER)
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return false;
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else
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return true;
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}
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