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Reticulum/RNS/Interfaces/RNodeMultiInterface.py
Mark Qvist 823bfd537c Refactored processIncoming to process_incoming
2024-11-22 14:39:27 +01:00

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# MIT License
#
# Copyright (c) 2024 Jacob Eva. Adapted from the RNodeInterface by Mark Qvist / unsigned.io
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
from .Interface import Interface
from time import sleep
import sys
import threading
import time
import math
import RNS
class KISS():
FEND = 0xC0
FESC = 0xDB
TFEND = 0xDC
TFESC = 0xDD
CMD_UNKNOWN = 0xFE
CMD_FREQUENCY = 0x01
CMD_BANDWIDTH = 0x02
CMD_TXPOWER = 0x03
CMD_SF = 0x04
CMD_CR = 0x05
CMD_RADIO_STATE = 0x06
CMD_RADIO_LOCK = 0x07
CMD_ST_ALOCK = 0x0B
CMD_LT_ALOCK = 0x0C
CMD_DETECT = 0x08
CMD_LEAVE = 0x0A
CMD_READY = 0x0F
CMD_STAT_RX = 0x21
CMD_STAT_TX = 0x22
CMD_STAT_RSSI = 0x23
CMD_STAT_SNR = 0x24
CMD_STAT_CHTM = 0x25
CMD_STAT_PHYPRM = 0x26
CMD_BLINK = 0x30
CMD_RANDOM = 0x40
CMD_FB_EXT = 0x41
CMD_FB_READ = 0x42
CMD_FB_WRITE = 0x43
CMD_BT_CTRL = 0x46
CMD_PLATFORM = 0x48
CMD_MCU = 0x49
CMD_FW_VERSION = 0x50
CMD_ROM_READ = 0x51
CMD_RESET = 0x55
CMD_INTERFACES = 0x64
CMD_INT0_DATA = 0x00
CMD_INT1_DATA = 0x10
CMD_INT2_DATA = 0x20
CMD_INT3_DATA = 0x70
CMD_INT4_DATA = 0x75
CMD_INT5_DATA = 0x90
CMD_INT6_DATA = 0xA0
CMD_INT7_DATA = 0xB0
CMD_INT8_DATA = 0xC0
CMD_INT9_DATA = 0xD0
CMD_INT10_DATA = 0xE0
CMD_INT11_DATA = 0xF0
CMD_SEL_INT0 = 0x1E
CMD_SEL_INT1 = 0x1F
CMD_SEL_INT2 = 0x2F
CMD_SEL_INT3 = 0x74
CMD_SEL_INT4 = 0x7F
CMD_SEL_INT5 = 0x9F
CMD_SEL_INT6 = 0xAF
CMD_SEL_INT7 = 0xBF
CMD_SEL_INT8 = 0xCF
CMD_SEL_INT9 = 0xDF
CMD_SEL_INT10 = 0xEF
CMD_SEL_INT11 = 0xFF
DETECT_REQ = 0x73
DETECT_RESP = 0x46
RADIO_STATE_OFF = 0x00
RADIO_STATE_ON = 0x01
RADIO_STATE_ASK = 0xFF
CMD_ERROR = 0x90
ERROR_INITRADIO = 0x01
ERROR_TXFAILED = 0x02
ERROR_EEPROM_LOCKED = 0x03
PLATFORM_AVR = 0x90
PLATFORM_ESP32 = 0x80
PLATFORM_NRF52 = 0x70
SX127X = 0x00
SX1276 = 0x01
SX1278 = 0x02
SX126X = 0x10
SX1262 = 0x11
SX128X = 0x20
SX1280 = 0x21
def int_data_cmd_to_index(int_data_cmd):
if int_data_cmd == KISS.CMD_INT0_DATA:
return 0
elif int_data_cmd == KISS.CMD_INT1_DATA:
return 1
elif int_data_cmd == KISS.CMD_INT2_DATA:
return 2
elif int_data_cmd == KISS.CMD_INT3_DATA:
return 3
elif int_data_cmd == KISS.CMD_INT4_DATA:
return 4
elif int_data_cmd == KISS.CMD_INT5_DATA:
return 5
elif int_data_cmd == KISS.CMD_INT6_DATA:
return 6
elif int_data_cmd == KISS.CMD_INT7_DATA:
return 7
elif int_data_cmd == KISS.CMD_INT8_DATA:
return 8
elif int_data_cmd == KISS.CMD_INT9_DATA:
return 9
elif int_data_cmd == KISS.CMD_INT10_DATA:
return 10
elif int_data_cmd == KISS.CMD_INT11_DATA:
return 11
else:
return 0
def interface_type_to_str(interface_type):
if interface_type == KISS.SX126X or interface_type == KISS.SX1262:
return "SX126X"
elif interface_type == KISS.SX127X or interface_type == KISS.SX1276 or interface_type == KISS.SX1278:
return "SX127X"
elif interface_type == KISS.SX128X or interface_type == KISS.SX1280:
return "SX128X"
else:
return "SX127X"
@staticmethod
def escape(data):
data = data.replace(bytes([0xdb]), bytes([0xdb, 0xdd]))
data = data.replace(bytes([0xc0]), bytes([0xdb, 0xdc]))
return data
class RNodeMultiInterface(Interface):
MAX_CHUNK = 32768
DEFAULT_IFAC_SIZE = 8
CALLSIGN_MAX_LEN = 32
REQUIRED_FW_VER_MAJ = 1
REQUIRED_FW_VER_MIN = 74
RECONNECT_WAIT = 5
MAX_SUBINTERFACES = 11
def __init__(self, owner, configuration):
if RNS.vendor.platformutils.is_android():
raise SystemError("Invalid interface type. The Android-specific RNode interface must be used on Android")
import importlib
if importlib.util.find_spec('serial') != None:
import serial
else:
RNS.log("Using the RNode interface requires a serial communication module to be installed.", RNS.LOG_CRITICAL)
RNS.log("You can install one with the command: python3 -m pip install pyserial", RNS.LOG_CRITICAL)
RNS.panic()
super().__init__()
c = Interface.get_config_obj(configuration)
name = c["name"]
count = 0
enabled_count = 0
# Count how many interfaces are in the file
for subinterface in c:
# if the retrieved entry is not a string, it must be a dictionary, which is what we want
if not isinstance(c[subinterface], str):
count += 1
# Count how many interfaces are enabled to allow for appropriate matrix sizing
for subinterface in c:
# if the retrieved entry is not a string, it must be a dictionary, which is what we want
if not isinstance(c[subinterface], str):
subinterface_config = self.config["interfaces"][name][subinterface]
if (("interface_enabled" in subinterface_config) and subinterface_config.as_bool("interface_enabled") == True) or (("enabled" in c) and c.as_bool("enabled") == True):
enabled_count += 1
# Create an array with a row for each subinterface
subint_config = [[0 for x in range(11)] for y in range(enabled_count)]
subint_index = 0
for subinterface in c:
# If the retrieved entry is not a string, it must be a dictionary, which is what we want
if not isinstance(c[subinterface], str):
subinterface_config = self.config["interfaces"][name][subinterface]
if (("interface_enabled" in subinterface_config) and subinterface_config.as_bool("interface_enabled") == True) or (("enabled" in c) and c.as_bool("enabled") == True):
subint_config[subint_index][0] = subinterface
subint_vport = subinterface_config["vport"] if "vport" in subinterface_config else None
subint_config[subint_index][1] = subint_vport
frequency = int(subinterface_config["frequency"]) if "frequency" in subinterface_config else None
subint_config[subint_index][2] = frequency
bandwidth = int(subinterface_config["bandwidth"]) if "bandwidth" in subinterface_config else None
subint_config[subint_index][3] = bandwidth
txpower = int(subinterface_config["txpower"]) if "txpower" in subinterface_config else None
subint_config[subint_index][4] = txpower
spreadingfactor = int(subinterface_config["spreadingfactor"]) if "spreadingfactor" in subinterface_config else None
subint_config[subint_index][5] = spreadingfactor
codingrate = int(subinterface_config["codingrate"]) if "codingrate" in subinterface_config else None
subint_config[subint_index][6] = codingrate
flow_control = subinterface_config.as_bool("flow_control") if "flow_control" in subinterface_config else False
subint_config[subint_index][7] = flow_control
st_alock = float(subinterface_config["airtime_limit_short"]) if "airtime_limit_short" in subinterface_config else None
subint_config[subint_index][8] = st_alock
lt_alock = float(subinterface_config["airtime_limit_long"]) if "airtime_limit_long" in subinterface_config else None
subint_config[subint_index][9] = lt_alock
if "outgoing" in subinterface_config and subinterface_config.as_bool("outgoing") == False:
subint_config[subint_index][10] = False
else:
subint_config[subint_index][10] = True
subint_index += 1
# if no subinterfaces are defined
if count == 0:
raise ValueError("No subinterfaces configured for "+name)
# if no subinterfaces are enabled
elif enabled_count == 0:
raise ValueError("No subinterfaces enabled for "+name)
id_interval = int(c["id_interval"]) if "id_interval" in c else None
id_callsign = c["id_callsign"] if "id_callsign" in c else None
port = c["port"] if "port" in c else None
if port == None:
raise ValueError("No port specified for "+name)
self.HW_MTU = 508
self.clients = 0
self.pyserial = serial
self.serial = None
self.selected_index = 0
self.owner = owner
self.name = name
self.port = port
self.speed = 115200
self.databits = 8
self.stopbits = 1
self.timeout = 100
self.online = False
self.detached = False
self.reconnecting= False
self.bitrate = 0
self.platform = None
self.display = None
self.mcu = None
self.detected = False
self.firmware_ok = False
self.maj_version = 0
self.min_version = 0
self.mode = RNS.Interfaces.Interface.Interface.MODE_FULL
self.last_id = 0
self.first_tx = None
self.reconnect_w = RNodeMultiInterface.RECONNECT_WAIT
self.subinterfaces = [0] * RNodeMultiInterface.MAX_SUBINTERFACES
self.subinterface_types = []
self.subint_config = subint_config
self.r_stat_rx = None
self.r_stat_tx = None
self.r_stat_rssi = None
self.r_stat_snr = None
self.r_st_alock = None
self.r_lt_alock = None
self.r_random = None
self.packet_queue = []
self.interface_ready = False
self.announce_rate_target = None
self.validcfg = True
if id_interval != None and id_callsign != None:
if (len(id_callsign.encode("utf-8")) <= RNodeMultiInterface.CALLSIGN_MAX_LEN):
self.should_id = True
self.id_callsign = id_callsign.encode("utf-8")
self.id_interval = id_interval
else:
RNS.log("The encoded ID callsign for "+str(self)+" exceeds the max length of "+str(RNodeMultiInterface.CALLSIGN_MAX_LEN)+" bytes.", RNS.LOG_ERROR)
self.validcfg = False
else:
self.id_interval = None
self.id_callsign = None
if (not self.validcfg):
raise ValueError("The configuration for "+str(self)+" contains errors, interface is offline")
def start(self):
try:
self.open_port()
if self.serial.is_open:
self.configure_device()
else:
raise IOError("Could not open serial port")
except Exception as e:
RNS.log("Could not open serial port for interface "+str(self), RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
RNS.log("Reticulum will attempt to bring up this interface periodically", RNS.LOG_ERROR)
if not self.detached and not self.reconnecting:
thread = threading.Thread(target=self.reconnect_port)
thread.daemon = True
thread.start()
def open_port(self):
RNS.log("Opening serial port "+self.port+"...")
self.serial = self.pyserial.Serial(
port = self.port,
baudrate = self.speed,
bytesize = self.databits,
parity = self.pyserial.PARITY_NONE,
stopbits = self.stopbits,
xonxoff = False,
rtscts = False,
timeout = 0,
inter_byte_timeout = None,
write_timeout = None,
dsrdtr = False,
)
def configure_device(self):
sleep(2.0)
thread = threading.Thread(target=self.readLoop)
thread.daemon = True
thread.start()
self.detect()
sleep(0.2)
if not self.detected:
RNS.log("Could not detect device for "+str(self), RNS.LOG_ERROR)
self.serial.close()
else:
if self.platform == KISS.PLATFORM_ESP32 or self.platform == KISS.PLATFORM_NRF52:
self.display = True
RNS.log("Serial port "+self.port+" is now open")
RNS.log("Creating subinterfaces...", RNS.LOG_VERBOSE)
for subint in self.subint_config:
subint_vport = int(subint[1])
# check if index of vport exists in interface types array (the index corresponds to the vport for that interface)
if len(self.subinterface_types) >= (subint_vport+1):
# interface will add itself to the subinterfaces list automatically
interface = RNodeSubInterface(
RNS.Transport,
subint[0],
self,
subint_vport,
self.subinterface_types[subint_vport],
frequency = subint[2],
bandwidth = subint[3],
txpower = subint[4],
sf = subint[5],
cr = subint[6],
flow_control=subint[7],
st_alock=subint[8],
lt_alock=subint[9]
)
interface.OUT = subint[10]
interface.IN = True
interface.announce_rate_target = self.announce_rate_target
interface.mode = self.mode
interface.HW_MTU = self.HW_MTU
interface.detected = True
RNS.Transport.interfaces.append(interface)
RNS.log("Spawned new RNode subinterface: "+str(interface), RNS.LOG_VERBOSE)
self.clients += 1
else:
raise ValueError("Virtual port \""+subint[1]+"\" for subinterface "+subint[0]+" does not exist on "+self.name)
self.online = True
def detect(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_DETECT, KISS.DETECT_REQ, KISS.FEND, KISS.CMD_FW_VERSION, 0x00, KISS.FEND, KISS.CMD_PLATFORM, 0x00, KISS.FEND, KISS.CMD_MCU, 0x00, KISS.FEND, KISS.CMD_INTERFACES, 0x00, KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while detecting hardware for "+str(self))
def leave(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_LEAVE, 0xFF, KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while sending host left command to device")
def enable_external_framebuffer(self):
if self.display != None:
kiss_command = bytes([KISS.FEND, KISS.CMD_FB_EXT, 0x01, KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while enabling external framebuffer on device")
def disable_external_framebuffer(self):
if self.display != None:
kiss_command = bytes([KISS.FEND, KISS.CMD_FB_EXT, 0x00, KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while disabling external framebuffer on device")
FB_PIXEL_WIDTH = 64
FB_BITS_PER_PIXEL = 1
FB_PIXELS_PER_BYTE = 8//FB_BITS_PER_PIXEL
FB_BYTES_PER_LINE = FB_PIXEL_WIDTH//FB_PIXELS_PER_BYTE
def display_image(self, imagedata):
if self.display != None:
lines = len(imagedata)//8
for line in range(lines):
line_start = line*RNodeMultiInterface.FB_BYTES_PER_LINE
line_end = line_start+RNodeMultiInterface.FB_BYTES_PER_LINE
line_data = bytes(imagedata[line_start:line_end])
self.write_framebuffer(line, line_data)
def write_framebuffer(self, line, line_data):
if self.display != None:
line_byte = line.to_bytes(1, byteorder="big", signed=False)
data = line_byte+line_data
escaped_data = KISS.escape(data)
kiss_command = bytes([KISS.FEND])+bytes([KISS.CMD_FB_WRITE])+escaped_data+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while writing framebuffer data device")
def hard_reset(self):
kiss_command = bytes([KISS.FEND, KISS.CMD_RESET, 0xf8, KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while restarting device")
sleep(2.25);
def setFrequency(self, frequency, interface):
c1 = frequency >> 24
c2 = frequency >> 16 & 0xFF
c3 = frequency >> 8 & 0xFF
c4 = frequency & 0xFF
data = KISS.escape(bytes([c1])+bytes([c2])+bytes([c3])+bytes([c4]))
kiss_command = bytes([KISS.FEND])+bytes([interface.sel_cmd])+bytes([KISS.FEND])+bytes([KISS.FEND])+bytes([KISS.CMD_FREQUENCY])+data+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring frequency for "+str(self))
self.selected_index = interface.index
def setBandwidth(self, bandwidth, interface):
c1 = bandwidth >> 24
c2 = bandwidth >> 16 & 0xFF
c3 = bandwidth >> 8 & 0xFF
c4 = bandwidth & 0xFF
data = KISS.escape(bytes([c1])+bytes([c2])+bytes([c3])+bytes([c4]))
kiss_command = bytes([KISS.FEND])+bytes([interface.sel_cmd])+bytes([KISS.FEND])+bytes([KISS.FEND])+bytes([KISS.CMD_BANDWIDTH])+data+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring bandwidth for "+str(self))
self.selected_index = interface.index
def setTXPower(self, txpower, interface):
txp = txpower.to_bytes(1, byteorder="big", signed=True)
kiss_command = bytes([KISS.FEND])+bytes([interface.sel_cmd])+bytes([KISS.FEND])+bytes([KISS.FEND])+bytes([KISS.CMD_TXPOWER])+txp+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring TX power for "+str(self))
self.selected_index = interface.index
def setSpreadingFactor(self, sf, interface):
sf = bytes([sf])
kiss_command = bytes([KISS.FEND])+bytes([interface.sel_cmd])+bytes([KISS.FEND])+bytes([KISS.FEND])+bytes([KISS.CMD_SF])+sf+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring spreading factor for "+str(self))
self.selected_index = interface.index
def setCodingRate(self, cr, interface):
cr = bytes([cr])
kiss_command = bytes([KISS.FEND])+bytes([interface.sel_cmd])+bytes([KISS.FEND])+bytes([KISS.FEND])+bytes([KISS.CMD_CR])+cr+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring coding rate for "+str(self))
self.selected_index = interface.index
def setSTALock(self, st_alock, interface):
if st_alock != None:
at = int(st_alock*100)
c1 = at >> 8 & 0xFF
c2 = at & 0xFF
data = KISS.escape(bytes([c1])+bytes([c2]))
kiss_command = bytes([KISS.FEND])+bytes([interface.sel_cmd])+bytes([KISS.FEND])+bytes([KISS.FEND])+bytes([KISS.CMD_ST_ALOCK])+data+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring short-term airtime limit for "+str(self))
self.selected_index = interface.index
def setLTALock(self, lt_alock, interface):
if lt_alock != None:
at = int(lt_alock*100)
c1 = at >> 8 & 0xFF
c2 = at & 0xFF
data = KISS.escape(bytes([c1])+bytes([c2]))
kiss_command = bytes([KISS.FEND])+bytes([interface.sel_cmd])+bytes([KISS.FEND])+bytes([KISS.FEND])+bytes([KISS.CMD_LT_ALOCK])+data+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring long-term airtime limit for "+str(self))
self.selected_index = interface.index
def setRadioState(self, state, interface):
#self.state = state
kiss_command = bytes([KISS.FEND])+bytes([interface.sel_cmd])+bytes([KISS.FEND])+bytes([KISS.FEND])+bytes([KISS.CMD_RADIO_STATE])+bytes([state])+bytes([KISS.FEND])
written = self.serial.write(kiss_command)
if written != len(kiss_command):
raise IOError("An IO error occurred while configuring radio state for "+str(self))
self.selected_index = interface.index
def validate_firmware(self):
if (self.maj_version >= RNodeMultiInterface.REQUIRED_FW_VER_MAJ):
if (self.min_version >= RNodeMultiInterface.REQUIRED_FW_VER_MIN):
self.firmware_ok = True
if self.firmware_ok:
return
RNS.log("The firmware version of the connected RNode is "+str(self.maj_version)+"."+str(self.min_version), RNS.LOG_ERROR)
RNS.log("This version of Reticulum requires at least version "+str(RNodeMultiInterface.REQUIRED_FW_VER_MAJ)+"."+str(RNodeMultiInterface.REQUIRED_FW_VER_MIN), RNS.LOG_ERROR)
RNS.log("Please update your RNode firmware with rnodeconf from https://github.com/markqvist/Reticulum/RNS/Utilities/rnodeconf.py")
RNS.panic()
def process_outgoing(self, data, interface = None):
if interface is None:
# do nothing if RNS tries to transmit on this interface directly
pass
else:
data = KISS.escape(data)
frame = bytes([0xc0])+bytes([interface.data_cmd])+data+bytes([0xc0])
written = self.serial.write(frame)
self.txb += len(data)
if written != len(frame):
raise IOError("Serial interface only wrote "+str(written)+" bytes of "+str(len(data)))
def received_announce(self, from_spawned=False):
if from_spawned: self.ia_freq_deque.append(time.time())
def sent_announce(self, from_spawned=False):
if from_spawned: self.oa_freq_deque.append(time.time())
def readLoop(self):
try:
in_frame = False
escape = False
command = KISS.CMD_UNKNOWN
data_buffer = b""
command_buffer = b""
last_read_ms = int(time.time()*1000)
while self.serial.is_open:
if self.serial.in_waiting:
byte = ord(self.serial.read(1))
last_read_ms = int(time.time()*1000)
if (in_frame and byte == KISS.FEND and
(command == KISS.CMD_INT0_DATA or
command == KISS.CMD_INT1_DATA or
command == KISS.CMD_INT2_DATA or
command == KISS.CMD_INT3_DATA or
command == KISS.CMD_INT4_DATA or
command == KISS.CMD_INT5_DATA or
command == KISS.CMD_INT6_DATA or
command == KISS.CMD_INT7_DATA or
command == KISS.CMD_INT8_DATA or
command == KISS.CMD_INT9_DATA or
command == KISS.CMD_INT10_DATA or
command == KISS.CMD_INT11_DATA)):
in_frame = False
self.subinterfaces[KISS.int_data_cmd_to_index(command)].process_incoming(data_buffer)
self.selected_index = KISS.int_data_cmd_to_index(command)
data_buffer = b""
command_buffer = b""
elif (byte == KISS.FEND):
in_frame = True
command = KISS.CMD_UNKNOWN
data_buffer = b""
command_buffer = b""
elif (in_frame and len(data_buffer) < self.HW_MTU):
if (len(data_buffer) == 0 and command == KISS.CMD_UNKNOWN):
command = byte
elif (command == KISS.CMD_INT0_DATA or
command == KISS.CMD_INT1_DATA or
command == KISS.CMD_INT2_DATA or
command == KISS.CMD_INT3_DATA or
command == KISS.CMD_INT4_DATA or
command == KISS.CMD_INT5_DATA or
command == KISS.CMD_INT6_DATA or
command == KISS.CMD_INT7_DATA or
command == KISS.CMD_INT8_DATA or
command == KISS.CMD_INT9_DATA or
command == KISS.CMD_INT10_DATA or
command == KISS.CMD_INT11_DATA):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
data_buffer = data_buffer+bytes([byte])
elif (command == KISS.CMD_FREQUENCY):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 4):
self.subinterfaces[self.selected_index].r_frequency = command_buffer[0] << 24 | command_buffer[1] << 16 | command_buffer[2] << 8 | command_buffer[3]
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting frequency is "+str(self.subinterfaces[self.selected_index].r_frequency/1000000.0)+" MHz", RNS.LOG_DEBUG)
self.subinterfaces[self.selected_index].updateBitrate()
elif (command == KISS.CMD_BANDWIDTH):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 4):
self.subinterfaces[self.selected_index].r_bandwidth = command_buffer[0] << 24 | command_buffer[1] << 16 | command_buffer[2] << 8 | command_buffer[3]
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting bandwidth is "+str(self.subinterfaces[self.selected_index].r_bandwidth/1000.0)+" KHz", RNS.LOG_DEBUG)
self.subinterfaces[self.selected_index].updateBitrate()
elif (command == KISS.CMD_TXPOWER):
txp = byte - 256 if byte > 127 else byte
self.subinterfaces[self.selected_index].r_txpower = txp
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting TX power is "+str(self.subinterfaces[self.selected_index].r_txpower)+" dBm", RNS.LOG_DEBUG)
elif (command == KISS.CMD_SF):
self.subinterfaces[self.selected_index].r_sf = byte
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting spreading factor is "+str(self.subinterfaces[self.selected_index].r_sf), RNS.LOG_DEBUG)
self.subinterfaces[self.selected_index].updateBitrate()
elif (command == KISS.CMD_CR):
self.subinterfaces[self.selected_index].r_cr = byte
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting coding rate is "+str(self.subinterfaces[self.selected_index].r_cr), RNS.LOG_DEBUG)
self.subinterfaces[self.selected_index].updateBitrate()
elif (command == KISS.CMD_RADIO_STATE):
self.subinterfaces[self.selected_index].r_state = byte
if self.subinterfaces[self.selected_index].r_state:
pass
#RNS.log(str(self)+" Radio reporting state is online", RNS.LOG_DEBUG)
else:
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting state is offline", RNS.LOG_DEBUG)
elif (command == KISS.CMD_RADIO_LOCK):
self.subinterfaces[self.selected_index].r_lock = byte
elif (command == KISS.CMD_FW_VERSION):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 2):
self.maj_version = int(command_buffer[0])
self.min_version = int(command_buffer[1])
self.validate_firmware()
# not implemented in RNode_Firmware yet
#elif (command == KISS.CMD_STAT_RX):
# if (byte == KISS.FESC):
# escape = True
# else:
# if (escape):
# if (byte == KISS.TFEND):
# byte = KISS.FEND
# if (byte == KISS.TFESC):
# byte = KISS.FESC
# escape = False
# command_buffer = command_buffer+bytes([byte])
# if (len(command_buffer) == 4):
# self.r_stat_rx = ord(command_buffer[0]) << 24 | ord(command_buffer[1]) << 16 | ord(command_buffer[2]) << 8 | ord(command_buffer[3])
#elif (command == KISS.CMD_STAT_TX):
# if (byte == KISS.FESC):
# escape = True
# else:
# if (escape):
# if (byte == KISS.TFEND):
# byte = KISS.FEND
# if (byte == KISS.TFESC):
# byte = KISS.FESC
# escape = False
# command_buffer = command_buffer+bytes([byte])
# if (len(command_buffer) == 4):
# self.r_stat_tx = ord(command_buffer[0]) << 24 | ord(command_buffer[1]) << 16 | ord(command_buffer[2]) << 8 | ord(command_buffer[3])
elif (command == KISS.CMD_STAT_RSSI):
self.subinterfaces[self.selected_index].r_stat_rssi = byte-RNodeSubInterface.RSSI_OFFSET
elif (command == KISS.CMD_STAT_SNR):
self.subinterfaces[self.selected_index].r_stat_snr = int.from_bytes(bytes([byte]), byteorder="big", signed=True) * 0.25
try:
sfs = self.subinterfaces[self.selected_index].r_sf-7
snr = self.subinterfaces[self.selected_index].r_stat_snr
q_snr_min = RNodeSubInterface.Q_SNR_MIN_BASE-sfs*RNodeSubInterface.Q_SNR_STEP
q_snr_max = RNodeSubInterface.Q_SNR_MAX
q_snr_span = q_snr_max-q_snr_min
quality = round(((snr-q_snr_min)/(q_snr_span))*100,1)
if quality > 100.0: quality = 100.0
if quality < 0.0: quality = 0.0
self.subinterfaces[self.selected_index].r_stat_q = quality
except:
pass
elif (command == KISS.CMD_ST_ALOCK):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 2):
at = command_buffer[0] << 8 | command_buffer[1]
self.subinterfaces[self.selected_index].r_st_alock = at/100.0
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting short-term airtime limit is "+str(self.subinterfaces[self.selected_index].r_st_alock)+"%", RNS.LOG_DEBUG)
elif (command == KISS.CMD_LT_ALOCK):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 2):
at = command_buffer[0] << 8 | command_buffer[1]
self.subinterfaces[self.selected_index].r_lt_alock = at/100.0
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting long-term airtime limit is "+str(self.subinterfaces[self.selected_index].r_lt_alock)+"%", RNS.LOG_DEBUG)
elif (command == KISS.CMD_STAT_CHTM):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 8):
ats = command_buffer[0] << 8 | command_buffer[1]
atl = command_buffer[2] << 8 | command_buffer[3]
cus = command_buffer[4] << 8 | command_buffer[5]
cul = command_buffer[6] << 8 | command_buffer[7]
self.r_airtime_short = ats/100.0
self.r_airtime_long = atl/100.0
self.r_channel_load_short = cus/100.0
self.r_channel_load_long = cul/100.0
elif (command == KISS.CMD_STAT_PHYPRM):
if (byte == KISS.FESC):
escape = True
else:
if (escape):
if (byte == KISS.TFEND):
byte = KISS.FEND
if (byte == KISS.TFESC):
byte = KISS.FESC
escape = False
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 10):
lst = (command_buffer[0] << 8 | command_buffer[1])/1000.0
lsr = command_buffer[2] << 8 | command_buffer[3]
prs = command_buffer[4] << 8 | command_buffer[5]
prt = command_buffer[6] << 8 | command_buffer[7]
cst = command_buffer[8] << 8 | command_buffer[9]
if lst != self.subinterfaces[self.selected_index].r_symbol_time_ms or lsr != self.subinterfaces[self.selected_index].r_symbol_rate or prs != self.subinterfaces[self.selected_index].r_preamble_symbols or prt != self.subinterfaces[self.selected_index].r_premable_time_ms or cst != self.subinterfaces[self.selected_index].r_csma_slot_time_ms:
self.subinterfaces[self.selected_index].r_symbol_time_ms = lst
self.subinterfaces[self.selected_index].r_symbol_rate = lsr
self.subinterfaces[self.selected_index].r_preamble_symbols = prs
self.subinterfaces[self.selected_index].r_premable_time_ms = prt
self.subinterfaces[self.selected_index].r_csma_slot_time_ms = cst
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting symbol time is "+str(round(self.subinterfaces[self.selected_index].r_symbol_time_ms,2))+"ms (at "+str(self.subinterfaces[self.selected_index].r_symbol_rate)+" baud)", RNS.LOG_DEBUG)
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting preamble is "+str(self.subinterfaces[self.selected_index].r_preamble_symbols)+" symbols ("+str(self.subinterfaces[self.selected_index].r_premable_time_ms)+"ms)", RNS.LOG_DEBUG)
RNS.log(str(self.subinterfaces[self.selected_index])+" Radio reporting CSMA slot time is "+str(self.subinterfaces[self.selected_index].r_csma_slot_time_ms)+"ms", RNS.LOG_DEBUG)
elif (command == KISS.CMD_RANDOM):
self.r_random = byte
elif (command == KISS.CMD_PLATFORM):
self.platform = byte
elif (command == KISS.CMD_MCU):
self.mcu = byte
elif (command == KISS.CMD_ERROR):
if (byte == KISS.ERROR_INITRADIO):
RNS.log(str(self)+" hardware initialisation error (code "+RNS.hexrep(byte)+")", RNS.LOG_ERROR)
raise IOError("Radio initialisation failure")
elif (byte == KISS.ERROR_TXFAILED):
RNS.log(str(self)+" hardware TX error (code "+RNS.hexrep(byte)+")", RNS.LOG_ERROR)
raise IOError("Hardware transmit failure")
else:
RNS.log(str(self)+" hardware error (code "+RNS.hexrep(byte)+")", RNS.LOG_ERROR)
raise IOError("Unknown hardware failure")
elif (command == KISS.CMD_RESET):
if (byte == 0xF8):
if self.platform == KISS.PLATFORM_ESP32:
if self.online:
RNS.log("Detected reset while device was online, reinitialising device...", RNS.LOG_ERROR)
raise IOError("ESP32 reset")
elif (command == KISS.CMD_READY):
self.process_queue()
elif (command == KISS.CMD_DETECT):
if byte == KISS.DETECT_RESP:
self.detected = True
else:
self.detected = False
elif (command == KISS.CMD_INTERFACES):
command_buffer = command_buffer+bytes([byte])
if (len(command_buffer) == 2):
# add the interface to the back of the list, they're all given from vport 0 and up in order
self.subinterface_types.append(KISS.interface_type_to_str(command_buffer[1]))
command_buffer = b""
else:
time_since_last = int(time.time()*1000) - last_read_ms
if len(data_buffer) > 0 and time_since_last > self.timeout:
RNS.log(str(self)+" serial read timeout in command "+str(command), RNS.LOG_WARNING)
data_buffer = b""
in_frame = False
command = KISS.CMD_UNKNOWN
escape = False
if self.id_interval != None and self.id_callsign != None:
if self.first_tx != None:
if time.time() > self.first_tx + self.id_interval:
interface_available = False
for interface in self.subinterfaces:
if interface != 0 and interface.online:
interface_available = True
self.subinterfaces[interface.index].process_outgoing(self.id_callsign)
if interface_available:
RNS.log("Interface "+str(self)+" is transmitting beacon data on all subinterfaces: "+str(self.id_callsign.decode("utf-8")), RNS.LOG_DEBUG)
sleep(0.08)
except Exception as e:
self.online = False
RNS.log("A serial port error occurred, the contained exception was: "+str(e), RNS.LOG_ERROR)
RNS.log("The interface "+str(self)+" experienced an unrecoverable error and is now offline.", RNS.LOG_ERROR)
if RNS.Reticulum.panic_on_interface_error:
RNS.panic()
RNS.log("Reticulum will attempt to reconnect the interface periodically.", RNS.LOG_ERROR)
self.teardown_subinterfaces()
self.online = False
try:
self.serial.close()
except Exception as e:
pass
if not self.detached and not self.reconnecting:
self.reconnect_port()
def reconnect_port(self):
self.reconnecting = True
while not self.online and not self.detached:
try:
time.sleep(5)
RNS.log("Attempting to reconnect serial port "+str(self.port)+" for "+str(self)+"...", RNS.LOG_VERBOSE)
self.open_port()
if self.serial.is_open:
self.configure_device()
except Exception as e:
RNS.log("Error while reconnecting port, the contained exception was: "+str(e), RNS.LOG_ERROR)
self.reconnecting = False
if self.online:
RNS.log("Reconnected serial port for "+str(self))
def detach(self):
self.detached = True
self.disable_external_framebuffer()
for interface in self.subinterfaces:
if interface != 0:
self.setRadioState(KISS.RADIO_STATE_OFF, interface)
self.leave()
def teardown_subinterfaces(self):
for interface in self.subinterfaces:
if interface != 0:
if interface in RNS.Transport.interfaces:
RNS.Transport.interfaces.remove(interface)
self.subinterfaces[interface.index] = 0
def should_ingress_limit(self):
return False
def process_queue(self):
for interface in self.subinterfaces:
if interface != 0:
interface.process_queue()
def __str__(self):
return "RNodeMultiInterface["+str(self.name)+"]"
class RNodeSubInterface(Interface):
LOW_FREQ_MIN = 137000000
LOW_FREQ_MAX = 1000000000
HIGH_FREQ_MIN = 2200000000
HIGH_FREQ_MAX = 2600000000
RSSI_OFFSET = 157
Q_SNR_MIN_BASE = -9
Q_SNR_MAX = 6
Q_SNR_STEP = 2
def __init__(self, owner, name, parent_interface, index, interface_type, frequency = None, bandwidth = None, txpower = None, sf = None, cr = None, flow_control = False, st_alock = None, lt_alock = None,):
if RNS.vendor.platformutils.is_android():
raise SystemError("Invalid interface type. The Android-specific RNode interface must be used on Android")
import importlib
if importlib.util.find_spec('serial') != None:
import serial
else:
RNS.log("Using the RNode interface requires a serial communication module to be installed.", RNS.LOG_CRITICAL)
RNS.log("You can install one with the command: python3 -m pip install pyserial", RNS.LOG_CRITICAL)
RNS.panic()
super().__init__()
if index == 0:
sel_cmd = KISS.CMD_SEL_INT0
data_cmd= KISS.CMD_INT0_DATA
elif index == 1:
sel_cmd = KISS.CMD_SEL_INT1
data_cmd= KISS.CMD_INT1_DATA
elif index == 2:
sel_cmd = KISS.CMD_SEL_INT2
data_cmd= KISS.CMD_INT2_DATA
elif index == 3:
sel_cmd = KISS.CMD_SEL_INT3
data_cmd= KISS.CMD_INT3_DATA
elif index == 4:
sel_cmd = KISS.CMD_SEL_INT4
data_cmd= KISS.CMD_INT4_DATA
elif index == 5:
sel_cmd = KISS.CMD_SEL_INT5
data_cmd= KISS.CMD_INT5_DATA
elif index == 6:
sel_cmd = KISS.CMD_SEL_INT6
data_cmd= KISS.CMD_INT6_DATA
elif index == 7:
sel_cmd = KISS.CMD_SEL_INT7
data_cmd= KISS.CMD_INT7_DATA
elif index == 8:
sel_cmd = KISS.CMD_SEL_INT8
data_cmd= KISS.CMD_INT8_DATA
elif index == 9:
sel_cmd = KISS.CMD_SEL_INT9
data_cmd= KISS.CMD_INT9_DATA
elif index == 10:
sel_cmd = KISS.CMD_SEL_INT10
data_cmd= KISS.CMD_INT10_DATA
elif index == 11:
sel_cmd = KISS.CMD_SEL_INT11
data_cmd= KISS.CMD_INT11_DATA
else:
sel_cmd = KISS.CMD_SEL_INT0
data_cmd= KISS.CMD_INT0_DATA
self.owner = owner
self.name = name
self.index = index
self.sel_cmd = sel_cmd
self.data_cmd = data_cmd
self.interface_type= interface_type
self.flow_control= flow_control
self.online = False
self.frequency = frequency
self.bandwidth = bandwidth
self.txpower = txpower
self.sf = sf
self.cr = cr
self.state = KISS.RADIO_STATE_OFF
self.bitrate = 0
self.st_alock = st_alock
self.lt_alock = lt_alock
self.platform = None
self.display = None
self.mcu = None
self.r_frequency = None
self.r_bandwidth = None
self.r_txpower = None
self.r_sf = None
self.r_cr = None
self.r_state = None
self.r_lock = None
self.r_stat_rx = None
self.r_stat_tx = None
self.r_stat_rssi = None
self.r_stat_snr = None
self.r_st_alock = None
self.r_lt_alock = None
self.r_airtime_short = 0.0
self.r_airtime_long = 0.0
self.r_channel_load_short = 0.0
self.r_channel_load_long = 0.0
self.r_symbol_time_ms = None
self.r_symbol_rate = None
self.r_preamble_symbols = None
self.r_premable_time_ms = None
self.packet_queue = []
self.interface_ready = False
self.parent_interface = parent_interface
self.announce_rate_target = None
self.mode = None
self.announce_cap = None
self.bitrate = None
self.ifac_size = None
# add this interface to the subinterfaces array
self.parent_interface.subinterfaces[index] = self
self.validcfg = True
if (self.interface_type == "SX126X" or self.interface_type == "SX127X"):
if (self.frequency < RNodeSubInterface.LOW_FREQ_MIN or self.frequency > RNodeSubInterface.LOW_FREQ_MAX):
RNS.log("Invalid frequency configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
elif (self.interface_type == "SX128X"):
if (self.frequency < RNodeSubInterface.HIGH_FREQ_MIN or self.frequency > RNodeSubInterface.HIGH_FREQ_MAX):
RNS.log("Invalid frequency configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
else:
RNS.log("Invalid interface type configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.txpower < -9 or self.txpower > 27):
RNS.log("Invalid TX power configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.bandwidth < 7800 or self.bandwidth > 1625000):
RNS.log("Invalid bandwidth configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.sf < 5 or self.sf > 12):
RNS.log("Invalid spreading factor configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.cr < 5 or self.cr > 8):
RNS.log("Invalid coding rate configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.st_alock and (self.st_alock < 0.0 or self.st_alock > 100.0)):
RNS.log("Invalid short-term airtime limit configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (self.lt_alock and (self.lt_alock < 0.0 or self.lt_alock > 100.0)):
RNS.log("Invalid long-term airtime limit configured for "+str(self), RNS.LOG_ERROR)
self.validcfg = False
if (not self.validcfg):
raise ValueError("The configuration for "+str(self)+" contains errors, interface is offline")
self.configure_device()
def configure_device(self):
self.r_frequency = None
self.r_bandwidth = None
self.r_txpower = None
self.r_sf = None
self.r_cr = None
self.r_state = None
self.r_lock = None
sleep(2.0)
RNS.log("Configuring RNode subinterface "+str(self)+"...", RNS.LOG_VERBOSE)
self.initRadio()
if (self.validateRadioState()):
self.interface_ready = True
RNS.log(str(self)+" is configured and powered up")
sleep(0.3)
self.online = True
else:
RNS.log("After configuring "+str(self)+", the reported radio parameters did not match your configuration.", RNS.LOG_ERROR)
RNS.log("Make sure that your hardware actually supports the parameters specified in the configuration", RNS.LOG_ERROR)
RNS.log("Aborting RNode startup", RNS.LOG_ERROR)
def initRadio(self):
self.parent_interface.setFrequency(self.frequency, self)
self.parent_interface.setBandwidth(self.bandwidth, self)
self.parent_interface.setTXPower(self.txpower, self)
self.parent_interface.setSpreadingFactor(self.sf, self)
self.parent_interface.setCodingRate(self.cr, self)
self.parent_interface.setSTALock(self.st_alock, self)
self.parent_interface.setLTALock(self.lt_alock, self)
self.parent_interface.setRadioState(KISS.RADIO_STATE_ON, self)
self.state = KISS.RADIO_STATE_ON
def validateRadioState(self):
RNS.log("Waiting for radio configuration validation for "+str(self)+"...", RNS.LOG_VERBOSE)
sleep(0.25);
self.validcfg = True
if (self.r_frequency != None and abs(self.frequency - int(self.r_frequency)) > 100):
RNS.log("Frequency mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.bandwidth != self.r_bandwidth):
RNS.log("Bandwidth mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.txpower != self.r_txpower):
RNS.log("TX power mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.sf != self.r_sf):
RNS.log("Spreading factor mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.state != self.r_state):
RNS.log("Radio state mismatch", RNS.LOG_ERROR)
self.validcfg = False
if (self.validcfg):
return True
else:
return False
def updateBitrate(self):
try:
self.bitrate = self.r_sf * ( (4.0/self.r_cr) / (math.pow(2,self.r_sf)/(self.r_bandwidth/1000)) ) * 1000
self.bitrate_kbps = round(self.bitrate/1000.0, 2)
RNS.log(str(self)+" On-air bitrate is now "+str(self.bitrate_kbps)+ " kbps", RNS.LOG_VERBOSE)
except:
self.bitrate = 0
def process_incoming(self, data):
self.rxb += len(data)
self.owner.inbound(data, self)
self.r_stat_rssi = None
self.r_stat_snr = None
def process_outgoing(self,data):
if self.online:
if self.interface_ready:
if self.flow_control:
self.interface_ready = False
if data == self.parent_interface.id_callsign:
self.parent_interface.first_tx = None
else:
if self.parent_interface.first_tx == None:
self.parent_interface.first_tx = time.time()
self.txb += len(data)
self.parent_interface.process_outgoing(data, self)
else:
self.queue(data)
def queue(self, data):
self.packet_queue.append(data)
def process_queue(self):
if len(self.packet_queue) > 0:
data = self.packet_queue.pop(0)
self.interface_ready = True
self.process_outgoing(data)
elif len(self.packet_queue) == 0:
self.interface_ready = True
def __str__(self):
return self.parent_interface.name+"["+self.name+"]"
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