iot-ip-beacon/main.py

65 lines
1.5 KiB
Python

#!/usr/bin/env python3
from typing import Optional
import socket
import time
import fcntl
import struct
def get_ip_address(ifname: str) -> str:
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
return socket.inet_ntoa(fcntl.ioctl(s.fileno(), 0x8915, struct.pack('256s', ifname[:15].encode()))[20:24])
def get_uptime() -> float:
with open('/proc/uptime', 'r') as f:
uptime_seconds = float(f.readline().split()[0])
return uptime_seconds
def get_hostname() -> str:
return socket.gethostname()
def get_version() -> str:
try:
with open('/version', 'r') as f:
for line in f:
if line.lower().startswith("version:"):
return line.split(":", 2)[1].strip()
return "u"
except FileNotFoundError:
return "u"
def main():
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BINDTODEVICE, b"enp3s0")
while True:
ipaddr = ""
try:
ipaddr = get_ip_address("enp3s0")
except:
pass
message = f"BIRBOX|{ipaddr}|{get_hostname()}|{get_version()}|{int(get_uptime())}"
sock.sendto(message.encode("utf-8"), ('<broadcast>', 6969))
time.sleep(10)
if __name__ == "__main__":
print("Starting beacon...")
try:
main()
except KeyboardInterrupt:
pass
print("Beacon stopped.")