Automatically load NFS and a bevy of other filesystems.

2 files changed, 30 insertions, 0 deletions

diff --git a/sbin/nfsd/nfsd.8 b/sbin/nfsd/nfsd.8
index 4ee6c4b..a54a564 100644
--- a/sbin/nfsd/nfsd.8
+++ b/sbin/nfsd/nfsd.8
@@ -100,12 +100,30 @@ server specification; see
 .%T "Network File System Protocol Specification" ,
 RFC1094.
 .Pp
+If
+.Nm nfsd
+detects that 
+.Tn NFS
+is not loaded in the running kernel, it will attempt
+to load a loadable kernel module containing
+.Tn NFS
+support using
+.Xr modload 8
+by way of
+.Xr vfsload 3 .
+If this fails, or no
+.Tn NFS
+LKM is available,
+.Nm nfsd
+will exit with an error.
+.Pp
 The
 .Nm nfsd
 utility exits 0 on success, and >0 if an error occurs.
 .Sh SEE ALSO
 .Xr nfsstat 1 ,
 .Xr nfssvc 2 ,
+.Xr modload 8 ,
 .Xr mountd 8 ,
 .Xr portmap 8
 .Sh HISTORY
diff --git a/sbin/nfsd/nfsd.c b/sbin/nfsd/nfsd.c
index 8e2d14c..9d4d226 100644
--- a/sbin/nfsd/nfsd.c
+++ b/sbin/nfsd/nfsd.c
@@ -144,6 +144,18 @@ main(argc, argv, envp)
 	int nfsdcnt, nfssvc_flag, on, reregister, sock, tcpflag, tcpsock;
 	int tp4cnt, tp4flag, tp4sock, tpipcnt, tpipflag, tpipsock, udpflag;
 	char *cp, **cpp;
+	struct vfsconf *vfc;
+
+	vfc = getvfsbyname("nfs");
+	if(!vfc && vfsisloadable("nfs")) {
+		if(vfsload("nfs"))
+			err(1, "vfsload(nfs)");
+		endvfsent();	/* flush cache */
+		vfc = getvfsbyname("nfs"); /* probably unnecessary */
+	}
+	if(!vfc) {
+		errx(1, "NFS is not available in the running kernel");
+	}
 
 	/* Save start and extent of argv for setproctitle. */
 	Argv = argv;