diff options
| -rw-r--r-- | python/qemu/aqmp/qmp_client.py | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/python/qemu/aqmp/qmp_client.py b/python/qemu/aqmp/qmp_client.py index d2ad7459f9..f987da02eb 100644 --- a/python/qemu/aqmp/qmp_client.py +++ b/python/qemu/aqmp/qmp_client.py @@ -9,6 +9,8 @@ accept an incoming connection from that server. import asyncio import logging +import socket +import struct from typing import ( Dict, List, @@ -624,3 +626,23 @@ class QMPClient(AsyncProtocol[Message], Events): """ msg = self.make_execute_msg(cmd, arguments, oob=oob) return await self.execute_msg(msg) + + @upper_half + @require(Runstate.RUNNING) + def send_fd_scm(self, fd: int) -> None: + """ + Send a file descriptor to the remote via SCM_RIGHTS. + """ + assert self._writer is not None + sock = self._writer.transport.get_extra_info('socket') + + if sock.family != socket.AF_UNIX: + raise AQMPError("Sending file descriptors requires a UNIX socket.") + + # Void the warranty sticker. + # Access to sendmsg in asyncio is scheduled for removal in Python 3.11. + sock = sock._sock # pylint: disable=protected-access + sock.sendmsg( + [b' '], + [(socket.SOL_SOCKET, socket.SCM_RIGHTS, struct.pack('@i', fd))] + ) |