Automatically load NFS and a bevy of other filesystems.

2 files changed, 34 insertions, 2 deletions

diff --git a/sbin/nfsiod/nfsiod.8 b/sbin/nfsiod/nfsiod.8
index 2acd365..e2ccc67 100644
--- a/sbin/nfsiod/nfsiod.8
+++ b/sbin/nfsiod/nfsiod.8
@@ -29,9 +29,10 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     @(#)nfsiod.8	8.2 (Berkeley) 2/22/94
+.\"     From: @(#)nfsiod.8	8.2 (Berkeley) 2/22/94
+.\"	$Id$
 .\"
-.Dd February 22, 1994
+.Dd September 22, 1994
 .Dt NFSIOD 8
 .Os
 .Sh NAME
@@ -60,12 +61,29 @@ Specify how many servers are to be started.
 A client should run enough daemons to handle its maximum
 level of concurrency, typically four to six.
 .Pp
+If
+.Nm nfsiod
+detects that the running kernel does not include
+.Tn NFS
+support, it will attempt to load a loadable kernel module containing
+.Tn NFS
+code, using
+.Xr modload 8
+by way of
+.Xr vfsload 3 .
+If this fails, or no
+.Tn NFS
+LKM was available,
+.Nm nfsiod
+exits with an error.
+.Pp
 The
 .Nm nfsiod
 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/nfsiod/nfsiod.c b/sbin/nfsiod/nfsiod.c
index b742fdc..d066329 100644
--- a/sbin/nfsiod/nfsiod.c
+++ b/sbin/nfsiod/nfsiod.c
@@ -49,6 +49,7 @@ static char sccsid[] = "@(#)nfsiod.c	8.3 (Berkeley) 2/22/94";
 #include <sys/syslog.h>
 #include <sys/ucred.h>
 #include <sys/wait.h>
+#include <sys/mount.h>
 
 #include <nfs/nfsv2.h>
 #include <nfs/nfs.h>
@@ -83,6 +84,19 @@ main(argc, argv)
 	char *argv[];
 {
 	int ch, num_servers;
+	struct vfsconf *vfc;
+
+	vfc = getvfsbyname("nfs");
+	if(!vfc && vfsisloadable("nfs")) {
+		if(vfsload("nfs"))
+			err(1, "vfsload(nfs)");
+		endvfsent();	/* flush cache */
+		vfc = getvfsbyname("nfs");
+	}
+
+	if(!vfc) {
+		errx(1, "NFS support is not available in the running kernel");
+	}
 
 #define	MAXNFSDCNT      20
 #define	DEFNFSDCNT       1