socket: add new Symlinks= option for socket units

With Symlinks= we can manage one or more symlinks to AF_UNIX or FIFO
nodes in the file system, with the same lifecycle as the socket itself.

This has two benefits: first, this allows us to remove /dev/log and
/dev/initctl from /dev, thus leaving only symlinks, device nodes and
directories in the /dev tree. More importantly however, this allows us
to move /dev/log out of /dev, while still making it accessible there, so
that PrivateDevices= can provide /dev/log too.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/core/socket.h b/src/core/socket.h
index 42b1a1fe06..f6bc37df8d 100644
--- a/src/core/socket.h
+++ b/src/core/socket.h
@@ -125,6 +125,8 @@ struct Socket {
 
         SocketResult result;
 
+        char **symlinks;
+
         bool accept;
         bool remove_on_stop;