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billywhizz/vsock-get-cid.py

Forked from stefano-garzarella/vsock-get-cid.py
Created July 14, 2025 00:36
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vsock: get local CID using the available ioctl
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vsock-get-cid.py
#!/usr/bin/env python3
import socket
import struct
import fcntl
with open("/dev/vsock", "rb") as fd:
r = fcntl.ioctl(fd, socket.IOCTL_VM_SOCKETS_GET_LOCAL_CID, " ")
cid = struct.unpack("I", r)[0]
print("Local CID: {}".format(cid))
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