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rdp: Allow specifying a listener fd on the command line

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We already have a way for a single RDP client connection to be
passed from a parent process to a child using a combination
of environment variable (RDP_FD) and env var (--env-socket)

This patch allows a bound socket fd (as opposed to a client
connection) to be established in a parent process and provided
to the rdp backend. WSLg uses this to set up an AF_VSOCK
socket for communication between a Windows RDP client and a
weston compositor running under a hypervisor.

Co-authored-by: Hideyuki Nagase <hideyukn@microsoft.com>
Co-authored-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Hideyuki Nagase <hideyukn@microsoft.com>
Signed-off-by: Steve Pronovost <spronovo@microsoft.com>
Signed-off-by: Brenton DeGeer <brdegeer@microsoft.com>
This commit is contained in:
Brenton DeGeer
2022-03-15 12:24:42 -05:00
committed by Derek Foreman
parent 13e62c9d18
commit 2f9319cef6
5 changed files with 40 additions and 12 deletions
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man/weston-rdp.man
+6
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@@ -59,6 +59,12 @@ to ship a file containing a certificate.
\fB\-\-rdp\-tls\-cert\fR=\fIfile\fR
The file containing the certificate for doing TLS security. To have TLS security you also need
to ship a key file.
.TP
\fB\-\-external\-listener\-fd\fR=\fIfd\fR
Specifies a file descriptor inherited from the process that launched weston
to be listened on for client connections. Only local (such as AF_VSOCK)
sockets should be used, as this will be considered to be a local connection
by the RDP backend, and TLS and RDP security will be bypassed.
.\" ***************************************************************