mirror of
https://github.com/ryan4yin/nix-config.git
synced 2026-11-13 12:13:36 +01:00
47 lines
1.3 KiB
Python
Executable File
47 lines
1.3 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Wake every homelab host whose NixOS config arms Wake-on-LAN."""
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from __future__ import annotations
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import socket
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import sys
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# Keep this list limited to hosts that actually set Wake-on: g in NixOS.
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# Add a host here only after its WoL service and BIOS setting are in place.
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HOSTS = {
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"aquamarine": "8c:32:23:36:81:84",
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}
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BROADCASTS = ("192.168.5.255", "255.255.255.255")
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PORT = 9
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PACKETS = 3
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def magic_packet(mac: str) -> bytes:
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octets = bytes.fromhex(mac.replace(":", ""))
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if len(octets) != 6:
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raise ValueError(f"invalid MAC: {mac}")
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return b"\xff" * 6 + octets * 16
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def main() -> int:
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
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failed = False
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for host, mac in HOSTS.items():
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packet = magic_packet(mac)
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print(f"waking {host} ({mac})")
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for _ in range(PACKETS):
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for broadcast in BROADCASTS:
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try:
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sock.sendto(packet, (broadcast, PORT))
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except OSError as exc:
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print(f" {broadcast}:{PORT}: {exc}", file=sys.stderr)
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failed = True
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return 1 if failed else 0
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if __name__ == "__main__":
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sys.exit(main())
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