83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
import socket
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import time
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import ax25
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CLIENT_CALLSIGN = "N0CALL-7"
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configured = False
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lease_expiration = None
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def parse_message(data):
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parts = data.split('|')
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return parts
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def build_request(network_name):
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return f"0.1|CRAP_REQUEST|{CLIENT_CALLSIGN}|{network_name}"
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def apply_network_config(assigned_ip, gateway, dns, lease_time):
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global configured, lease_expiration
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print("\n[Network Configuration]")
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print(f" Bringing up interface: ax0")
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print(f" Assigned IP address: {assigned_ip}")
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print(f" Default Gateway: {gateway}")
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print(f" DNS Server: {dns}")
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print(f" Lease Time: {lease_time} seconds")
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print(" Interface ax0 configured successfully! 🚀")
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print("----------------------------------------")
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configured = True
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lease_expiration = time.time() + int(lease_time)
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def main():
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global configured, lease_expiration
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sock = socket.socket(socket.AF_AX25, socket.SOCK_DGRAM)
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sock.bind((CLIENT_CALLSIGN,)) # Bind to our own callsign
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print(f"Client {CLIENT_CALLSIGN} listening for CRAPRNIAC beacons...")
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while True:
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# Check lease expiration
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if configured and lease_expiration and time.time() >= lease_expiration:
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print("\n[Lease Expired]")
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print(" Tearing down interface ax0...")
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print(" Ready to rejoin network.")
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print("----------------------------------------")
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configured = False
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lease_expiration = None
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data, addr = sock.recvfrom(1024)
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decoded = data.decode('utf-8')
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parts = parse_message(decoded)
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if len(parts) < 2:
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continue
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if parts[1] == "CRAP_BEACON":
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if not configured:
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base_callsign = parts[2]
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network_name = parts[3]
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print(f"\nHeard beacon from {base_callsign} ({addr}):")
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print(f" Network: {network_name}")
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print("Sending join request...")
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request = build_request(network_name).encode('utf-8')
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sock.sendto(request, (base_callsign,))
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elif parts[1] == "CRAP_ACCEPT":
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client_callsign = parts[2]
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network_name = parts[3]
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assigned_ip = parts[4]
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gateway = parts[5]
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dns = parts[6]
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lease_time = parts[7]
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print(f"\nReceived CRAP_ACCEPT:")
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print(f" Assigned IP: {assigned_ip}")
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print(f" Gateway: {gateway}")
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print(f" DNS Server: {dns}")
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print(f" Lease Time: {lease_time} seconds")
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apply_network_config(assigned_ip, gateway, dns, lease_time)
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if __name__ == "__main__":
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main()
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