fd_device: allow fd to be passed through a unix socket

[tinc] / doc / tinc.texi

diff --git a/doc/tinc.texi b/doc/tinc.texi
index 65011bd..9c45965 100644 (file)
--- a/doc/tinc.texi
+++ b/doc/tinc.texi
@@ -941,7 +941,8 @@ Also note that this can cause decrypted VPN packets to be sent out on a real net
 
 @cindex fd
 @item fd
 
 @cindex fd
 @item fd

-Use a file descriptor.
+Use a file descriptor, given directly as an integer or passed through a unix domain socket.
+On Linux, an abstract socket address can be specified by using "@" as a prefix.

 All packets are read from this interface.
 Packets received for the local node are written to it.
 
 All packets are read from this interface.
 Packets received for the local node are written to it.