1133 lines
50 KiB
Python
Executable File
1133 lines
50 KiB
Python
Executable File
#!python3
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# MIT License
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#
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# Copyright (c) 2018 Mark Qvist - unsigned.io
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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from time import sleep
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import argparse
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import threading
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import os
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import os.path
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import struct
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import datetime
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import time
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import math
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from urllib.request import urlretrieve
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from importlib import util
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program_version = "1.1.0"
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rnode = None
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rnode_serial = None
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rnode_baudrate = 115200
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known_keys = [["unsigned.io", "30819f300d06092a864886f70d010101050003818d0030818902818100e5d46084e445595376bf7efd9c6ccf19d39abbc59afdb763207e4ff68b8d00ebffb63847aa2fe6dd10783d3ea63b55ac66f71ad885c20e223709f0d51ed5c6c0d0b093be9e1d165bb8a483a548b67a3f7a1e4580f50e75b306593fa6067ae259d3e297717bd7ff8c8f5b07f2bed89929a9a0321026cf3699524db98e2d18fb2d020300ff39"]]
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ranges = { 0xA4: [410000000, 525000000, 14], 0xA9: [820000000, 1020000000, 17] }
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firmware_update_url = "https://github.com/markqvist/RNode_Firmware/raw/master/Precompiled/rnode_firmware_latest.hex"
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class RNS():
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@staticmethod
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def log(msg):
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logtimefmt = "%Y-%m-%d %H:%M:%S"
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timestamp = time.time()
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logstring = "["+time.strftime(logtimefmt)+"] "+msg
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print(logstring)
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@staticmethod
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def hexrep(data, delimit=True):
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try:
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iter(data)
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except TypeError:
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data = [data]
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delimiter = ":"
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if not delimit:
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delimiter = ""
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hexrep = delimiter.join("{:02x}".format(c) for c in data)
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return hexrep
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@staticmethod
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def prettyhexrep(data):
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delimiter = ""
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hexrep = "<"+delimiter.join("{:02x}".format(c) for c in data)+">"
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return hexrep
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class KISS():
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FEND = 0xC0
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FESC = 0xDB
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TFEND = 0xDC
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TFESC = 0xDD
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CMD_UNKNOWN = 0xFE
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CMD_DATA = 0x00
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CMD_FREQUENCY = 0x01
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CMD_BANDWIDTH = 0x02
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CMD_TXPOWER = 0x03
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CMD_SF = 0x04
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CMD_CR = 0x05
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CMD_RADIO_STATE = 0x06
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CMD_RADIO_LOCK = 0x07
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CMD_DETECT = 0x08
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CMD_READY = 0x0F
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CMD_STAT_RX = 0x21
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CMD_STAT_TX = 0x22
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CMD_STAT_RSSI = 0x23
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CMD_STAT_SNR = 0x24
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CMD_BLINK = 0x30
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CMD_RANDOM = 0x40
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CMD_FW_VERSION = 0x50
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CMD_ROM_READ = 0x51
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CMD_ROM_WRITE = 0x52
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CMD_ROM_WIPE = 0x59
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CMD_CONF_SAVE = 0x53
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CMD_CONF_DELETE = 0x54
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CMD_RESET = 0x55
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DETECT_REQ = 0x73
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DETECT_RESP = 0x46
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RADIO_STATE_OFF = 0x00
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RADIO_STATE_ON = 0x01
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RADIO_STATE_ASK = 0xFF
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CMD_ERROR = 0x90
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ERROR_INITRADIO = 0x01
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ERROR_TXFAILED = 0x02
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ERROR_EEPROM_LOCKED = 0x03
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@staticmethod
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def escape(data):
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data = data.replace(bytes([0xdb]), bytes([0xdb, 0xdd]))
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data = data.replace(bytes([0xc0]), bytes([0xdb, 0xdc]))
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return data
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class ROM():
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PRODUCT_RNODE = 0x03
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MODEL_A4 = 0xA4
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MODEL_A9 = 0xA9
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ADDR_PRODUCT = 0x00
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ADDR_MODEL = 0x01
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ADDR_HW_REV = 0x02
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ADDR_SERIAL = 0x03
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ADDR_MADE = 0x07
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ADDR_CHKSUM = 0x0B
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ADDR_SIGNATURE = 0x1B
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ADDR_INFO_LOCK = 0x9B
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ADDR_CONF_SF = 0x9C
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ADDR_CONF_CR = 0x9D
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ADDR_CONF_TXP = 0x9E
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ADDR_CONF_BW = 0x9F
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ADDR_CONF_FREQ = 0xA3
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ADDR_CONF_OK = 0xA7
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INFO_LOCK_BYTE = 0x73
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CONF_OK_BYTE = 0x73
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class RNode():
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def __init__(self, serial_instance):
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self.serial = serial_instance
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self.timeout = 100
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self.r_frequency = None
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self.r_bandwidth = None
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self.r_txpower = None
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self.r_sf = None
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self.r_state = None
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self.r_lock = None
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self.sf = None
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self.cr = None
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self.txpower = None
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self.frequency = None
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self.bandwidth = None
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self.detected = None
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self.eeprom = None
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self.major_version = None
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self.minor_version = None
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self.version = None
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self.provisioned = None
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self.product = None
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self.model = None
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self.hw_rev = None
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self.made = None
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self.serialno = None
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self.checksum = None
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self.signature = None
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self.signature_valid = False
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self.locally_signed = False
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self.vendor = None
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self.min_freq = None
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self.max_freq = None
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self.max_output = None
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self.configured = None
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self.conf_sf = None
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self.conf_cr = None
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self.conf_txpower = None
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self.conf_frequency = None
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self.conf_bandwidth = None
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def readLoop(self):
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try:
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in_frame = False
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escape = False
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command = KISS.CMD_UNKNOWN
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data_buffer = b""
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command_buffer = b""
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last_read_ms = int(time.time()*1000)
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while self.serial.is_open:
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if self.serial.in_waiting:
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byte = ord(self.serial.read(1))
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last_read_ms = int(time.time()*1000)
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if (in_frame and byte == KISS.FEND and command == KISS.CMD_ROM_READ):
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self.eeprom = data_buffer
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in_frame = False
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data_buffer = b""
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command_buffer = b""
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elif (byte == KISS.FEND):
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in_frame = True
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command = KISS.CMD_UNKNOWN
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data_buffer = b""
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command_buffer = b""
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elif (in_frame and len(data_buffer) < 512):
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if (len(data_buffer) == 0 and command == KISS.CMD_UNKNOWN):
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command = byte
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elif (command == KISS.CMD_ROM_READ):
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if (byte == KISS.FESC):
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escape = True
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else:
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if (escape):
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if (byte == KISS.TFEND):
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byte = KISS.FEND
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if (byte == KISS.TFESC):
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byte = KISS.FESC
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escape = False
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data_buffer = data_buffer+bytes([byte])
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elif (command == KISS.CMD_DATA):
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if (byte == KISS.FESC):
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escape = True
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else:
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if (escape):
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if (byte == KISS.TFEND):
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byte = KISS.FEND
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if (byte == KISS.TFESC):
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byte = KISS.FESC
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escape = False
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data_buffer = data_buffer+bytes([byte])
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elif (command == KISS.CMD_FREQUENCY):
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if (byte == KISS.FESC):
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escape = True
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else:
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if (escape):
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if (byte == KISS.TFEND):
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byte = KISS.FEND
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if (byte == KISS.TFESC):
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byte = KISS.FESC
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escape = False
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command_buffer = command_buffer+bytes([byte])
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if (len(command_buffer) == 4):
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self.r_frequency = command_buffer[0] << 24 | command_buffer[1] << 16 | command_buffer[2] << 8 | command_buffer[3]
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RNS.log("Radio reporting frequency is "+str(self.r_frequency/1000000.0)+" MHz")
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self.updateBitrate()
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elif (command == KISS.CMD_BANDWIDTH):
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if (byte == KISS.FESC):
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escape = True
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else:
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if (escape):
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if (byte == KISS.TFEND):
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byte = KISS.FEND
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if (byte == KISS.TFESC):
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byte = KISS.FESC
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escape = False
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command_buffer = command_buffer+bytes([byte])
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if (len(command_buffer) == 4):
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self.r_bandwidth = command_buffer[0] << 24 | command_buffer[1] << 16 | command_buffer[2] << 8 | command_buffer[3]
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RNS.log("Radio reporting bandwidth is "+str(self.r_bandwidth/1000.0)+" KHz")
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self.updateBitrate()
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elif (command == KISS.CMD_FW_VERSION):
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if (byte == KISS.FESC):
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escape = True
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else:
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if (escape):
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if (byte == KISS.TFEND):
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byte = KISS.FEND
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if (byte == KISS.TFESC):
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byte = KISS.FESC
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escape = False
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command_buffer = command_buffer+bytes([byte])
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if (len(command_buffer) == 2):
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self.major_version = command_buffer[0]
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self.minor_version = command_buffer[1]
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self.updateVersion()
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elif (command == KISS.CMD_TXPOWER):
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self.r_txpower = byte
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RNS.log("Radio reporting TX power is "+str(self.r_txpower)+" dBm")
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elif (command == KISS.CMD_SF):
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self.r_sf = byte
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RNS.log("Radio reporting spreading factor is "+str(self.r_sf))
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self.updateBitrate()
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elif (command == KISS.CMD_CR):
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self.r_cr = byte
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RNS.log("Radio reporting coding rate is "+str(self.r_cr))
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self.updateBitrate()
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elif (command == KISS.CMD_RADIO_STATE):
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self.r_state = byte
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elif (command == KISS.CMD_RADIO_LOCK):
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self.r_lock = byte
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elif (command == KISS.CMD_STAT_RX):
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if (byte == KISS.FESC):
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escape = True
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else:
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if (escape):
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if (byte == KISS.TFEND):
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byte = KISS.FEND
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if (byte == KISS.TFESC):
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byte = KISS.FESC
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escape = False
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command_buffer = command_buffer+bytes([byte])
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if (len(command_buffer) == 4):
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self.r_stat_rx = ord(command_buffer[0]) << 24 | ord(command_buffer[1]) << 16 | ord(command_buffer[2]) << 8 | ord(command_buffer[3])
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elif (command == KISS.CMD_STAT_TX):
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if (byte == KISS.FESC):
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escape = True
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else:
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if (escape):
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if (byte == KISS.TFEND):
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byte = KISS.FEND
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if (byte == KISS.TFESC):
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byte = KISS.FESC
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escape = False
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command_buffer = command_buffer+bytes([byte])
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if (len(command_buffer) == 4):
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self.r_stat_tx = ord(command_buffer[0]) << 24 | ord(command_buffer[1]) << 16 | ord(command_buffer[2]) << 8 | ord(command_buffer[3])
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elif (command == KISS.CMD_STAT_RSSI):
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self.r_stat_rssi = byte-RNodeInterface.RSSI_OFFSET
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elif (command == KISS.CMD_STAT_SNR):
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self.r_stat_snr = int.from_bytes(bytes([byte]), byteorder="big", signed=True) * 0.25
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elif (command == KISS.CMD_RANDOM):
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self.r_random = byte
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elif (command == KISS.CMD_ERROR):
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if (byte == KISS.ERROR_INITRADIO):
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RNS.log(str(self)+" hardware initialisation error (code "+RNS.hexrep(byte)+")")
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elif (byte == KISS.ERROR_TXFAILED):
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RNS.log(str(self)+" hardware TX error (code "+RNS.hexrep(byte)+")")
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else:
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RNS.log(str(self)+" hardware error (code "+RNS.hexrep(byte)+")")
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elif (command == KISS.CMD_DETECT):
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if byte == KISS.DETECT_RESP:
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self.detected = True
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else:
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self.detected = False
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else:
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time_since_last = int(time.time()*1000) - last_read_ms
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if len(data_buffer) > 0 and time_since_last > self.timeout:
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RNS.log(str(self)+" serial read timeout")
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data_buffer = b""
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in_frame = False
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command = KISS.CMD_UNKNOWN
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escape = False
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sleep(0.08)
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except Exception as e:
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raise e
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exit()
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def updateBitrate(self):
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try:
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self.bitrate = self.r_sf * ( (4.0/self.r_cr) / (math.pow(2,self.r_sf)/(self.r_bandwidth/1000)) ) * 1000
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self.bitrate_kbps = round(self.bitrate/1000.0, 2)
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except Exception as e:
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self.bitrate = 0
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def updateVersion(self):
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minstr = str(self.minor_version)
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if len(minstr) == 1:
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minstr = "0"+minstr
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self.version = str(self.major_version)+"."+minstr
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def detect(self):
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kiss_command = bytes([KISS.FEND, KISS.CMD_DETECT, KISS.DETECT_REQ, KISS.FEND, KISS.CMD_FW_VERSION, 0x00, KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring spreading factor for "+self(str))
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def initRadio(self):
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self.setFrequency()
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self.setBandwidth()
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self.setTXPower()
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self.setSpreadingFactor()
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self.setCodingRate()
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self.setRadioState(KISS.RADIO_STATE_ON)
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def setFrequency(self):
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c1 = self.frequency >> 24
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c2 = self.frequency >> 16 & 0xFF
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c3 = self.frequency >> 8 & 0xFF
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c4 = self.frequency & 0xFF
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data = KISS.escape(bytes([c1])+bytes([c2])+bytes([c3])+bytes([c4]))
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kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_FREQUENCY])+data+bytes([KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring frequency for "+self(str))
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def setBandwidth(self):
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c1 = self.bandwidth >> 24
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c2 = self.bandwidth >> 16 & 0xFF
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c3 = self.bandwidth >> 8 & 0xFF
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c4 = self.bandwidth & 0xFF
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data = KISS.escape(bytes([c1])+bytes([c2])+bytes([c3])+bytes([c4]))
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kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_BANDWIDTH])+data+bytes([KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring bandwidth for "+self(str))
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def setTXPower(self):
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txp = bytes([self.txpower])
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kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_TXPOWER])+txp+bytes([KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring TX power for "+self(str))
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def setSpreadingFactor(self):
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sf = bytes([self.sf])
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kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_SF])+sf+bytes([KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring spreading factor for "+self(str))
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def setCodingRate(self):
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cr = bytes([self.cr])
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kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_CR])+cr+bytes([KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring coding rate for "+self(str))
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def setRadioState(self, state):
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kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_RADIO_STATE])+bytes([state])+bytes([KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring radio state for "+self(str))
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def setNormalMode(self):
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kiss_command = bytes([KISS.FEND, KISS.CMD_CONF_DELETE, 0x00, KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring device mode")
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def setTNCMode(self):
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kiss_command = bytes([KISS.FEND, KISS.CMD_CONF_SAVE, 0x00, KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while configuring device mode")
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def wipe_eeprom(self):
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kiss_command = bytes([KISS.FEND, KISS.CMD_ROM_WIPE, 0xf8, KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while wiping EEPROM")
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sleep(13);
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def hard_reset(self):
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kiss_command = bytes([KISS.FEND, KISS.CMD_RESET, 0xf8, KISS.FEND])
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written = self.serial.write(kiss_command)
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if written != len(kiss_command):
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raise IOError("An IO error occurred while restarting device")
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|
sleep(1);
|
|
|
|
def write_eeprom(self, addr, byte):
|
|
write_payload = b"" + bytes([addr, byte])
|
|
write_payload = KISS.escape(write_payload)
|
|
kiss_command = bytes([KISS.FEND, KISS.CMD_ROM_WRITE]) + write_payload + bytes([KISS.FEND])
|
|
written = self.serial.write(kiss_command)
|
|
if written != len(kiss_command):
|
|
raise IOError("An IO error occurred while writing EEPROM")
|
|
|
|
|
|
def download_eeprom(self):
|
|
kiss_command = bytes([KISS.FEND, KISS.CMD_ROM_READ, 0x00, KISS.FEND])
|
|
written = self.serial.write(kiss_command)
|
|
if written != len(kiss_command):
|
|
raise IOError("An IO error occurred while configuring radio state")
|
|
|
|
sleep(0.2)
|
|
if self.eeprom == None:
|
|
RNS.log("Could not download EEPROM from device. Is a valid firmware installed?")
|
|
exit()
|
|
else:
|
|
self.parse_eeprom()
|
|
|
|
def parse_eeprom(self):
|
|
try:
|
|
if self.eeprom[ROM.ADDR_INFO_LOCK] == ROM.INFO_LOCK_BYTE:
|
|
from cryptography.hazmat.primitives import hashes
|
|
from cryptography.hazmat.backends import default_backend
|
|
|
|
self.provisioned = True
|
|
|
|
self.product = self.eeprom[ROM.ADDR_PRODUCT]
|
|
self.model = self.eeprom[ROM.ADDR_MODEL]
|
|
self.hw_rev = self.eeprom[ROM.ADDR_HW_REV]
|
|
self.serialno = bytes([self.eeprom[ROM.ADDR_SERIAL], self.eeprom[ROM.ADDR_SERIAL+1], self.eeprom[ROM.ADDR_SERIAL+2], self.eeprom[ROM.ADDR_SERIAL+3]])
|
|
self.made = bytes([self.eeprom[ROM.ADDR_MADE], self.eeprom[ROM.ADDR_MADE+1], self.eeprom[ROM.ADDR_MADE+2], self.eeprom[ROM.ADDR_MADE+3]])
|
|
self.checksum = b""
|
|
|
|
|
|
self.min_freq = ranges[self.model][0]
|
|
self.max_freq = ranges[self.model][1]
|
|
self.max_output = ranges[self.model][2]
|
|
|
|
try:
|
|
self.min_freq = ranges[self.model][0]
|
|
self.max_freq = ranges[self.model][1]
|
|
self.max_output = ranges[self.model][2]
|
|
except Exception as e:
|
|
RNS.log("Exception")
|
|
RNS.log(str(e))
|
|
self.min_freq = 0
|
|
self.max_freq = 0
|
|
self.max_output = 0
|
|
|
|
for i in range(0,16):
|
|
self.checksum = self.checksum+bytes([self.eeprom[ROM.ADDR_CHKSUM+i]])
|
|
|
|
self.signature = b""
|
|
for i in range(0,128):
|
|
self.signature = self.signature+bytes([self.eeprom[ROM.ADDR_SIGNATURE+i]])
|
|
|
|
checksummed_info = b"" + bytes([self.product]) + bytes([self.model]) + bytes([self.hw_rev]) + self.serialno + self.made
|
|
digest = hashes.Hash(hashes.MD5(), backend=default_backend())
|
|
digest.update(checksummed_info)
|
|
checksum = digest.finalize()
|
|
|
|
if self.checksum != checksum:
|
|
self.provisioned = False
|
|
RNS.log("EEPROM checksum mismatch")
|
|
exit()
|
|
else:
|
|
RNS.log("EEPROM checksum correct")
|
|
|
|
from cryptography.hazmat.primitives import serialization
|
|
from cryptography.hazmat.primitives.serialization import load_der_public_key
|
|
from cryptography.hazmat.primitives.serialization import load_der_private_key
|
|
from cryptography.hazmat.primitives.asymmetric import padding
|
|
|
|
# Try loading local signing key for
|
|
# validation of self-signed devices
|
|
if os.path.isdir("./firmware") and os.path.isfile("./firmware/signing.key"):
|
|
private_bytes = None
|
|
try:
|
|
file = open("./firmware/signing.key", "rb")
|
|
private_bytes = file.read()
|
|
file.close()
|
|
except Exception as e:
|
|
RNS.log("Could not load local signing key")
|
|
|
|
try:
|
|
private_key = serialization.load_der_private_key(
|
|
private_bytes,
|
|
password=None,
|
|
backend=default_backend()
|
|
)
|
|
public_key = private_key.public_key()
|
|
public_bytes = public_key.public_bytes(
|
|
encoding=serialization.Encoding.DER,
|
|
format=serialization.PublicFormat.SubjectPublicKeyInfo
|
|
)
|
|
public_bytes_hex = RNS.hexrep(public_bytes, delimit=False)
|
|
|
|
vendor_keys = []
|
|
for known in known_keys:
|
|
vendor_keys.append(known[1])
|
|
|
|
if not public_bytes_hex in vendor_keys:
|
|
local_key_entry = ["LOCAL", public_bytes_hex]
|
|
known_keys.append(local_key_entry)
|
|
|
|
except Exception as e:
|
|
RNS.log("Could not deserialize local signing key")
|
|
RNS.log(str(e))
|
|
|
|
for known in known_keys:
|
|
vendor = known[0]
|
|
public_hexrep = known[1]
|
|
public_bytes = bytes.fromhex(public_hexrep)
|
|
public_key = load_der_public_key(public_bytes, backend=default_backend())
|
|
try:
|
|
public_key.verify(
|
|
self.signature,
|
|
self.checksum,
|
|
padding.PSS(
|
|
mgf=padding.MGF1(hashes.SHA256()),
|
|
salt_length=padding.PSS.MAX_LENGTH
|
|
),
|
|
hashes.SHA256())
|
|
if vendor == "LOCAL":
|
|
self.locally_signed = True
|
|
|
|
self.signature_valid = True
|
|
self.vendor = vendor
|
|
except Exception as e:
|
|
pass
|
|
|
|
if self.signature_valid:
|
|
RNS.log("Device signature validated")
|
|
else:
|
|
RNS.log("Device signature validation failed")
|
|
|
|
if self.eeprom[ROM.ADDR_CONF_OK] == ROM.CONF_OK_BYTE:
|
|
self.configured = True
|
|
self.conf_sf = self.eeprom[ROM.ADDR_CONF_SF]
|
|
self.conf_cr = self.eeprom[ROM.ADDR_CONF_CR]
|
|
self.conf_txpower = self.eeprom[ROM.ADDR_CONF_TXP]
|
|
self.conf_frequency = self.eeprom[ROM.ADDR_CONF_FREQ] << 24 | self.eeprom[ROM.ADDR_CONF_FREQ+1] << 16 | self.eeprom[ROM.ADDR_CONF_FREQ+2] << 8 | self.eeprom[ROM.ADDR_CONF_FREQ+3]
|
|
self.conf_bandwidth = self.eeprom[ROM.ADDR_CONF_BW] << 24 | self.eeprom[ROM.ADDR_CONF_BW+1] << 16 | self.eeprom[ROM.ADDR_CONF_BW+2] << 8 | self.eeprom[ROM.ADDR_CONF_BW+3]
|
|
else:
|
|
self.configured = False
|
|
else:
|
|
self.provisioned = False
|
|
except Exception as e:
|
|
self.provisioned = False
|
|
RNS.log("Invalid EEPROM data, could not parse device EEPROM.")
|
|
|
|
|
|
def device_probe(self):
|
|
sleep(2.5)
|
|
self.detect()
|
|
sleep(0.1)
|
|
if self.detected == True:
|
|
RNS.log("Device connected")
|
|
RNS.log("Firmware version: "+self.version)
|
|
return True
|
|
else:
|
|
raise IOError("Got invalid response while detecting device")
|
|
|
|
def main():
|
|
try:
|
|
if not util.find_spec("serial"):
|
|
raise ImportError("Serial module could not be found")
|
|
except ImportError:
|
|
print("")
|
|
print("RNode Config Utility needs pyserial to work.")
|
|
print("You can install it with: pip3 install pyserial")
|
|
print("")
|
|
exit()
|
|
|
|
try:
|
|
if not util.find_spec("cryptography"):
|
|
raise ImportError("Cryptography module could not be found")
|
|
except ImportError:
|
|
print("")
|
|
print("RNode Config Utility needs the cryptography module to work.")
|
|
print("You can install it with: pip3 install cryptography")
|
|
print("")
|
|
exit()
|
|
|
|
import serial
|
|
|
|
try:
|
|
parser = argparse.ArgumentParser(description="RNode Configuration and firmware utility. This program allows you to change various settings and startup modes of RNode. It can also flash and update the firmware, and manage device EEPROM.")
|
|
parser.add_argument("-i", "--info", action="store_true", help="Show device info")
|
|
parser.add_argument("-T", "--tnc", action="store_true", help="Switch device to TNC mode")
|
|
parser.add_argument("-N", "--normal", action="store_true", help="Switch device to normal mode")
|
|
parser.add_argument("-b", "--backup", action="store_true", help="Backup EEPROM to file")
|
|
parser.add_argument("-d", "--dump", action="store_true", help="Dump EEPROM to console")
|
|
parser.add_argument("-f", "--flash", action="store_true", help="Flash firmware and bootstrap EEPROM")
|
|
parser.add_argument("-r", "--rom", action="store_true", help="Bootstrap EEPROM without flashing firmware")
|
|
parser.add_argument("-u", "--update", action="store_true", help="Update firmware")
|
|
parser.add_argument("-k", "--key", action="store_true", help="Generate a new signing key and exit")
|
|
parser.add_argument("-p", "--public", action="store_true", help="Display public part of signing key")
|
|
parser.add_argument("--freq", action="store", metavar="Hz", type=int, default=None, help="Frequency in Hz for TNC mode")
|
|
parser.add_argument("--bw", action="store", metavar="Hz", type=int, default=None, help="Bandwidth in Hz for TNC mode")
|
|
parser.add_argument("--txp", action="store", metavar="dBm", type=int, default=None, help="TX power in dBm for TNC mode")
|
|
parser.add_argument("--sf", action="store", metavar="factor", type=int, default=None, help="Spreading factor for TNC mode (7 - 12)")
|
|
parser.add_argument("--cr", action="store", metavar="rate", type=int, default=None, help="Coding rate for TNC mode (5 - 8)")
|
|
parser.add_argument("--model", action="store", metavar="model", type=str, default=None, help="Model code for EEPROM bootstrap")
|
|
parser.add_argument("--hwrev", action="store", metavar="revision", type=int, default=None, help="Hardware revision EEPROM bootstrap")
|
|
parser.add_argument("--nocheck", action="store_true", help="Don't check for firmware updates online")
|
|
parser.add_argument("--eepromwipe", action="store_true", help="Unlock and wipe EEPROM")
|
|
parser.add_argument("--version", action="store_true", help="Print version and exit")
|
|
|
|
parser.add_argument("port", nargs="?", default=None, help="serial port where RNode is attached", type=str)
|
|
args = parser.parse_args()
|
|
|
|
if args.version:
|
|
print("rnodeconf "+program_version)
|
|
exit(0)
|
|
|
|
if args.public or args.key or args.flash or args.rom:
|
|
from cryptography.hazmat.primitives import hashes
|
|
from cryptography.hazmat.backends import default_backend
|
|
from cryptography.hazmat.primitives import serialization
|
|
from cryptography.hazmat.primitives.serialization import load_der_public_key
|
|
from cryptography.hazmat.primitives.serialization import load_der_private_key
|
|
from cryptography.hazmat.primitives.asymmetric import rsa
|
|
from cryptography.hazmat.primitives.asymmetric import padding
|
|
|
|
if args.public:
|
|
private_bytes = None
|
|
try:
|
|
file = open("./firmware/signing.key", "rb")
|
|
private_bytes = file.read()
|
|
file.close()
|
|
except Exception as e:
|
|
RNS.log("Could not load signing key")
|
|
|
|
try:
|
|
private_key = serialization.load_der_private_key(
|
|
private_bytes,
|
|
password=None,
|
|
backend=default_backend()
|
|
)
|
|
public_key = private_key.public_key()
|
|
public_bytes = public_key.public_bytes(
|
|
encoding=serialization.Encoding.DER,
|
|
format=serialization.PublicFormat.SubjectPublicKeyInfo
|
|
)
|
|
RNS.log("Public key:")
|
|
RNS.log(RNS.hexrep(public_bytes, delimit=False))
|
|
except Exception as e:
|
|
RNS.log("Could not deserialize signing key")
|
|
RNS.log(str(e))
|
|
|
|
exit()
|
|
|
|
if args.key:
|
|
RNS.log("Generating a new signing key...")
|
|
private_key = rsa.generate_private_key(
|
|
public_exponent=65537,
|
|
key_size=1024,
|
|
backend=default_backend()
|
|
)
|
|
private_bytes = private_key.private_bytes(
|
|
encoding=serialization.Encoding.DER,
|
|
format=serialization.PrivateFormat.PKCS8,
|
|
encryption_algorithm=serialization.NoEncryption()
|
|
)
|
|
public_key = private_key.public_key()
|
|
public_bytes = public_key.public_bytes(
|
|
encoding=serialization.Encoding.DER,
|
|
format=serialization.PublicFormat.SubjectPublicKeyInfo
|
|
)
|
|
os.makedirs("./firmware", exist_ok=True)
|
|
if os.path.isdir("./firmware"):
|
|
if os.path.isfile("./firmware/signing.key"):
|
|
RNS.log("Signing key already exists, not overwriting!")
|
|
RNS.log("Manually delete this key to create a new one.")
|
|
else:
|
|
file = open("./firmware/signing.key", "wb")
|
|
file.write(private_bytes)
|
|
file.close()
|
|
|
|
RNS.log("Wrote signing key")
|
|
RNS.log("Public key:")
|
|
RNS.log(RNS.hexrep(public_bytes, delimit=False))
|
|
else:
|
|
RNS.log("The firmware directory does not exist, can't write key!")
|
|
|
|
exit()
|
|
|
|
if args.port:
|
|
if args.update:
|
|
if not args.nocheck:
|
|
try:
|
|
RNS.log("Downloading latest firmware from GitHub...")
|
|
os.makedirs("./update", exist_ok=True)
|
|
urlretrieve(firmware_update_url, "update/rnode_update.hex")
|
|
RNS.log("Firmware download completed")
|
|
if os.path.isfile("./update/rnode_update.hex"):
|
|
try:
|
|
RNS.log("Updating RNode firmware for device on "+args.port)
|
|
from subprocess import call
|
|
flash_status = call(["avrdude", "-P", args.port, "-p", "m1284p", "-c", "arduino", "-b", "115200", "-U", "flash:w:update/rnode_update.hex"])
|
|
if flash_status == 0:
|
|
RNS.log("Firmware updated")
|
|
args.info = True
|
|
else:
|
|
exit()
|
|
|
|
except Exception as e:
|
|
RNS.log("Error while updating firmware")
|
|
RNS.log(str(e))
|
|
else:
|
|
RNS.log("Firmware update file not found")
|
|
exit()
|
|
|
|
except Exception as e:
|
|
RNS.log("Could not download firmware update")
|
|
RNS.log("The contained exception was: "+str(e))
|
|
exit()
|
|
|
|
if args.flash:
|
|
if os.path.isfile("./firmware/rnode_firmware.hex"):
|
|
try:
|
|
RNS.log("Flashing RNode firmware to device on "+args.port)
|
|
from subprocess import call
|
|
flash_status = call(["avrdude", "-P", args.port, "-p", "m1284p", "-c", "arduino", "-b", "115200", "-U", "flash:w:firmware/rnode_firmware.hex"])
|
|
if flash_status == 0:
|
|
RNS.log("Done flashing")
|
|
args.rom = True
|
|
else:
|
|
exit()
|
|
|
|
except Exception as e:
|
|
RNS.log("Error while flashing")
|
|
RNS.log(str(e))
|
|
else:
|
|
RNS.log("Firmware file not found")
|
|
exit()
|
|
|
|
RNS.log("Opening serial port "+args.port+"...")
|
|
try:
|
|
rnode_serial = serial.Serial(
|
|
port = args.port,
|
|
baudrate = rnode_baudrate,
|
|
bytesize = 8,
|
|
parity = serial.PARITY_NONE,
|
|
stopbits = 1,
|
|
xonxoff = False,
|
|
rtscts = False,
|
|
timeout = 0,
|
|
inter_byte_timeout = None,
|
|
write_timeout = None,
|
|
dsrdtr = False
|
|
)
|
|
except Exception as e:
|
|
RNS.log("Could not open the specified serial port. The contained exception was:")
|
|
RNS.log(str(e))
|
|
exit()
|
|
|
|
rnode = RNode(rnode_serial)
|
|
thread = threading.Thread(target=rnode.readLoop)
|
|
thread.setDaemon(True)
|
|
thread.start()
|
|
|
|
try:
|
|
rnode.device_probe()
|
|
except Exception as e:
|
|
RNS.log("Serial port opened, but RNode did not respond. Is a valid firmware installed?")
|
|
print(e)
|
|
exit()
|
|
|
|
RNS.log("Reading EEPROM...")
|
|
rnode.download_eeprom()
|
|
|
|
if args.eepromwipe:
|
|
RNS.log("WARNING: EEPROM is being wiped! Power down device NOW if you do not want this!")
|
|
rnode.wipe_eeprom()
|
|
|
|
if args.dump:
|
|
RNS.log("EEPROM contents:")
|
|
RNS.log(RNS.hexrep(rnode.eeprom))
|
|
exit()
|
|
|
|
if args.backup:
|
|
try:
|
|
timestamp = time.time()
|
|
filename = str(time.strftime("%Y-%m-%d_%H-%M-%S"))
|
|
path = "./eeprom/"+filename+".eeprom"
|
|
file = open(path, "wb")
|
|
file.write(rnode.eeprom)
|
|
file.close()
|
|
RNS.log("EEPROM backup written to: "+path)
|
|
except Exception as e:
|
|
RNS.log("EEPROM was successfully downloaded from device,")
|
|
RNS.log("but file could not be written to disk.")
|
|
exit()
|
|
|
|
if args.info:
|
|
if rnode.provisioned:
|
|
timestamp = struct.unpack(">I", rnode.made)[0]
|
|
timestring = datetime.datetime.fromtimestamp(timestamp).strftime("%Y-%m-%d %H:%M:%S")
|
|
sigstring = "Unverified"
|
|
if rnode.signature_valid:
|
|
if rnode.locally_signed:
|
|
sigstring = "Validated - Local signature"
|
|
else:
|
|
sigstring = "Genuine board, vendor is "+rnode.vendor
|
|
|
|
RNS.log("")
|
|
RNS.log("Device info:")
|
|
RNS.log("\tFirmware version:\t"+rnode.version)
|
|
RNS.log("\tProduct code:\t\t"+bytes([rnode.product]).hex())
|
|
RNS.log("\tModel code:\t\t"+bytes([rnode.model]).hex())
|
|
RNS.log("\tHardware revision:\t"+bytes([rnode.hw_rev]).hex())
|
|
RNS.log("\tSerial number:\t\t"+RNS.hexrep(rnode.serialno))
|
|
RNS.log("\tFrequency range:\t"+str(rnode.min_freq/1e6)+" MHz - "+str(rnode.max_freq/1e6)+" MHz")
|
|
RNS.log("\tMax TX power:\t\t"+str(rnode.max_output)+" dBm")
|
|
RNS.log("\tManufactured:\t\t"+timestring)
|
|
|
|
if rnode.configured:
|
|
rnode.bandwidth = rnode.conf_bandwidth
|
|
rnode.r_bandwidth = rnode.conf_bandwidth
|
|
rnode.sf = rnode.conf_sf
|
|
rnode.r_sf = rnode.conf_sf
|
|
rnode.cr = rnode.conf_cr
|
|
rnode.r_cr = rnode.conf_cr
|
|
rnode.updateBitrate()
|
|
txp_mw = round(pow(10, (rnode.conf_txpower/10)), 3)
|
|
RNS.log("\tDevice signature:\t"+sigstring)
|
|
RNS.log("");
|
|
RNS.log("\tDevice mode:\t\tTNC")
|
|
RNS.log("\t Frequency:\t\t"+str((rnode.conf_frequency/1000000.0))+" MHz")
|
|
RNS.log("\t Bandwidth:\t\t"+str(rnode.conf_bandwidth/1000.0)+" KHz")
|
|
RNS.log("\t TX power:\t\t"+str(rnode.conf_txpower)+" dBm ("+str(txp_mw)+" mW)")
|
|
RNS.log("\t Spreading factor:\t"+str(rnode.conf_sf))
|
|
RNS.log("\t Coding rate:\t\t"+str(rnode.conf_cr))
|
|
RNS.log("\t On-air bitrate:\t"+str(rnode.bitrate_kbps)+" kbps")
|
|
else:
|
|
RNS.log("\tDevice mode:\t\tNormal (host-controlled)")
|
|
RNS.log("\tDevice signature:\t"+sigstring)
|
|
|
|
print("")
|
|
exit()
|
|
|
|
else:
|
|
RNS.log("EEPROM is invalid, no further information available")
|
|
exit()
|
|
|
|
if args.rom:
|
|
if rnode.provisioned:
|
|
RNS.log("EEPROM bootstrap was requested, but a valid EEPROM was already present.")
|
|
RNS.log("No changes are being made.")
|
|
exit()
|
|
else:
|
|
os.makedirs("./firmware", exist_ok=True)
|
|
counter = None
|
|
counter_path = "./firmware/serial.counter"
|
|
try:
|
|
if os.path.isfile(counter_path):
|
|
file = open(counter_path, "r")
|
|
counter_str = file.read()
|
|
counter = int(counter_str)
|
|
file.close()
|
|
else:
|
|
counter = 0
|
|
except Exception as e:
|
|
RNS.log("Could not create device serial number, exiting")
|
|
RNS.log(str(e))
|
|
exit()
|
|
|
|
serialno = counter+1
|
|
model = None
|
|
hwrev = None
|
|
if args.model == "a4":
|
|
model = ROM.MODEL_A4
|
|
if args.model == "a9":
|
|
model = ROM.MODEL_A9
|
|
if args.hwrev != None and (args.hwrev > 0 and args.hwrev < 256):
|
|
hwrev = chr(args.hwrev)
|
|
|
|
if serialno > 0 and model != None and hwrev != None:
|
|
try:
|
|
from cryptography.hazmat.primitives import hashes
|
|
from cryptography.hazmat.backends import default_backend
|
|
|
|
timestamp = int(time.time())
|
|
time_bytes = struct.pack(">I", timestamp)
|
|
serial_bytes = struct.pack(">I", serialno)
|
|
file = open(counter_path, "w")
|
|
file.write(str(serialno))
|
|
file.close()
|
|
|
|
info_chunk = b"" + bytes([ROM.PRODUCT_RNODE, model, ord(hwrev)])
|
|
info_chunk += serial_bytes
|
|
info_chunk += time_bytes
|
|
digest = hashes.Hash(hashes.MD5(), backend=default_backend())
|
|
digest.update(info_chunk)
|
|
checksum = digest.finalize()
|
|
|
|
RNS.log("Loading signing key...")
|
|
signature = None
|
|
key_path = "./firmware/signing.key"
|
|
if os.path.isfile(key_path):
|
|
try:
|
|
file = open(key_path, "rb")
|
|
private_bytes = file.read()
|
|
file.close()
|
|
private_key = serialization.load_der_private_key(
|
|
private_bytes,
|
|
password=None,
|
|
backend=default_backend()
|
|
)
|
|
public_key = private_key.public_key()
|
|
public_bytes = public_key.public_bytes(
|
|
encoding=serialization.Encoding.DER,
|
|
format=serialization.PublicFormat.SubjectPublicKeyInfo
|
|
)
|
|
signature = private_key.sign(
|
|
checksum,
|
|
padding.PSS(
|
|
mgf=padding.MGF1(hashes.SHA256()),
|
|
salt_length=padding.PSS.MAX_LENGTH
|
|
),
|
|
hashes.SHA256()
|
|
)
|
|
except Exception as e:
|
|
RNS.log("Error while signing EEPROM")
|
|
RNS.log(str(e))
|
|
else:
|
|
RNS.log("No signing key found")
|
|
exit()
|
|
|
|
|
|
RNS.log("Bootstrapping device EEPROM...")
|
|
|
|
rnode.write_eeprom(ROM.ADDR_PRODUCT, ROM.PRODUCT_RNODE)
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_MODEL, model)
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_HW_REV, ord(hwrev))
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_SERIAL, serial_bytes[0])
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_SERIAL+1, serial_bytes[1])
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_SERIAL+2, serial_bytes[2])
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_SERIAL+3, serial_bytes[3])
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_MADE, time_bytes[0])
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_MADE+1, time_bytes[1])
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_MADE+2, time_bytes[2])
|
|
time.sleep(0.006)
|
|
rnode.write_eeprom(ROM.ADDR_MADE+3, time_bytes[3])
|
|
time.sleep(0.006)
|
|
|
|
for i in range(0,16):
|
|
rnode.write_eeprom(ROM.ADDR_CHKSUM+i, checksum[i])
|
|
time.sleep(0.006)
|
|
|
|
for i in range(0,128):
|
|
rnode.write_eeprom(ROM.ADDR_SIGNATURE+i, signature[i])
|
|
time.sleep(0.006)
|
|
|
|
rnode.write_eeprom(ROM.ADDR_INFO_LOCK, ROM.INFO_LOCK_BYTE)
|
|
|
|
RNS.log("EEPROM written! Validating...")
|
|
rnode.download_eeprom()
|
|
if rnode.provisioned:
|
|
RNS.log("EEPROM Bootstrapping successful!")
|
|
try:
|
|
os.makedirs("./firmware/device_db/", exist_ok=True)
|
|
file = open("./firmware/device_db/"+serial_bytes.hex(), "wb")
|
|
written = file.write(rnode.eeprom)
|
|
file.close()
|
|
except Exception as e:
|
|
RNS.log("WARNING: Could not backup device EEPROM to disk")
|
|
exit()
|
|
else:
|
|
RNS.log("EEPROM was written, but validation failed. Check your settings.")
|
|
exit()
|
|
except Exception as e:
|
|
RNS.log("An error occurred while writing EEPROM. The contained exception was:")
|
|
RNS.log(str(e))
|
|
raise e
|
|
|
|
else:
|
|
RNS.log("Invalid data specified, cancelling EEPROM write")
|
|
exit()
|
|
|
|
|
|
if rnode.provisioned:
|
|
if args.normal:
|
|
rnode.setNormalMode()
|
|
RNS.log("Device set to normal (host-controlled) operating mode")
|
|
exit()
|
|
if args.tnc:
|
|
if not (args.freq and args.bw and args.txp and args.sf and args.cr):
|
|
RNS.log("Please input startup configuration:")
|
|
|
|
print("")
|
|
if args.freq:
|
|
rnode.frequency = args.freq
|
|
else:
|
|
print("Frequency in Hz:\t", end="")
|
|
rnode.frequency = int(input())
|
|
|
|
|
|
if args.bw:
|
|
rnode.bandwidth = args.bw
|
|
else:
|
|
print("Bandwidth in Hz:\t", end="")
|
|
rnode.bandwidth = int(input())
|
|
|
|
if args.txp != None and (args.txp >= 0 and args.txp <= 17):
|
|
rnode.txpower = args.txp
|
|
else:
|
|
print("TX Power in dBm:\t", end="")
|
|
rnode.txpower = int(input())
|
|
|
|
if args.sf:
|
|
rnode.sf = args.sf
|
|
else:
|
|
print("Spreading factor:\t", end="")
|
|
rnode.sf = int(input())
|
|
|
|
if args.cr:
|
|
rnode.cr = args.cr
|
|
else:
|
|
print("Coding rate:\t\t", end="")
|
|
rnode.cr = int(input())
|
|
|
|
print("")
|
|
|
|
rnode.initRadio()
|
|
sleep(0.5)
|
|
rnode.setTNCMode()
|
|
RNS.log("Device set to TNC operating mode")
|
|
sleep(1.0)
|
|
|
|
exit()
|
|
else:
|
|
RNS.log("This device contains a valid firmware, but EEPROM is invalid.")
|
|
RNS.log("Probably the device has not been initialised, or the EEPROM has been erased.")
|
|
RNS.log("Please correctly initialise the device and try again!")
|
|
|
|
else:
|
|
print("")
|
|
parser.print_help()
|
|
print("")
|
|
exit()
|
|
|
|
|
|
except KeyboardInterrupt:
|
|
print("")
|
|
exit()
|
|
|
|
if __name__ == "__main__":
|
|
main()
|