[Bug 1903470] Re: qemu 5.1.0: Add UNIX socket support for netdev socket

[Mark Karpelès]

Despite what is said in an earlier comment, qemu(1) has no information
on -netdev stream or -netdev dgram.

The best help I could find comes from the patch description:

https://patchew.org/QEMU/20221021090922.170074-1-lvivier@redhat.com/

Example use:

-netdev stream,id=socket0,server=off,addr.type=unix,addr.path=/tmp/qemu0

Also useful to note that the reconnect argument is only going to be
available in qemu 8.0.0 (not released yet)

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https://bugs.launchpad.net/bugs/1903470

Title:
  qemu 5.1.0: Add UNIX socket support for netdev socket

Status in QEMU:
  Expired

Bug description:
  Note: this is a feature request.

  qemu has a way to connect instances using a socket:

  -netdev socket,id=str[,fd=h][,listen=[host]:port][,connect=host:port]

  This can also be used to connect a qemu instance to something else
  using a socket connection, however there is no authentication or
  security to the connection, so rather than using a port which can be
  accessed by any user on the machine, having the ability to use or
  connect to UNIX sockets would be helpful, and adding this option
  should be fairly trivial.

  UNIX sockets can be found in various parts of qemu (monitor, etc) so I
  believe having this on network would make sense.

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