3 files changed, 36 insertions, 9 deletions

diff --git a/sys/dev/ed/if_ed.c b/sys/dev/ed/if_ed.c
index 77352a5e7500..35cc4b1f3f82 100644
--- a/sys/dev/ed/if_ed.c
+++ b/sys/dev/ed/if_ed.c
@@ -13,7 +13,7 @@
  *   the SMC Elite Ultra (8216), the 3Com 3c503, the NE1000 and NE2000,
  *   and a variety of similar clones.
  *
- * $Id: if_ed.c,v 1.39 1994/08/02 07:39:28 davidg Exp $
+ * $Id: if_ed.c,v 1.40 1994/08/04 17:42:33 davidg Exp $
  */
 
 #include "ed.h"
@@ -2127,8 +2127,8 @@ ed_ioctl(ifp, command, data)
 		 * Update out multicast list.
 		 */
 		error = (command == SIOCADDMULTI) ?
-		    ether_addmulti((struct ifreq *) data, &sc->arpcom) :
-		    ether_delmulti((struct ifreq *) data, &sc->arpcom);
+		    ether_addmulti(ifr, &sc->arpcom) :
+		    ether_delmulti((ifr, &sc->arpcom);
 
 		if (error == ENETRESET) {
 
@@ -2141,6 +2141,18 @@ ed_ioctl(ifp, command, data)
 		}
 		break;
 #endif
+	case SIOCSIFMTU:
+
+		/*
+		 * Set the interface MTU.
+		 */
+		if (ifr->ifr_mtu > ETHERMTU) {
+			error = EINVAL;
+		} else {
+			ifp->if_mtu = ifr->ifr_mtu;
+		}
+		break;
+
 	default:
 		error = EINVAL;
 	}
diff --git a/sys/i386/isa/if_ed.c b/sys/i386/isa/if_ed.c
index 77352a5e7500..35cc4b1f3f82 100644
--- a/sys/i386/isa/if_ed.c
+++ b/sys/i386/isa/if_ed.c
@@ -13,7 +13,7 @@
  *   the SMC Elite Ultra (8216), the 3Com 3c503, the NE1000 and NE2000,
  *   and a variety of similar clones.
  *
- * $Id: if_ed.c,v 1.39 1994/08/02 07:39:28 davidg Exp $
+ * $Id: if_ed.c,v 1.40 1994/08/04 17:42:33 davidg Exp $
  */
 
 #include "ed.h"
@@ -2127,8 +2127,8 @@ ed_ioctl(ifp, command, data)
 		 * Update out multicast list.
 		 */
 		error = (command == SIOCADDMULTI) ?
-		    ether_addmulti((struct ifreq *) data, &sc->arpcom) :
-		    ether_delmulti((struct ifreq *) data, &sc->arpcom);
+		    ether_addmulti(ifr, &sc->arpcom) :
+		    ether_delmulti((ifr, &sc->arpcom);
 
 		if (error == ENETRESET) {
 
@@ -2141,6 +2141,18 @@ ed_ioctl(ifp, command, data)
 		}
 		break;
 #endif
+	case SIOCSIFMTU:
+
+		/*
+		 * Set the interface MTU.
+		 */
+		if (ifr->ifr_mtu > ETHERMTU) {
+			error = EINVAL;
+		} else {
+			ifp->if_mtu = ifr->ifr_mtu;
+		}
+		break;
+
 	default:
 		error = EINVAL;
 	}
diff --git a/sys/net/if_loop.c b/sys/net/if_loop.c
index ff29dc054ebb..871202c07a3e 100644
--- a/sys/net/if_loop.c
+++ b/sys/net/if_loop.c
@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)if_loop.c	8.1 (Berkeley) 6/10/93
- * $Id$
+ * $Id: if_loop.c,v 1.5 1994/08/02 07:46:17 davidg Exp $
  */
 
 /*
@@ -208,7 +208,7 @@ loioctl(ifp, cmd, data)
 	caddr_t data;
 {
 	register struct ifaddr *ifa;
-	register struct ifreq *ifr;
+	register struct ifreq *ifr = (struct ifreq *)data;
 	register int error = 0;
 
 	switch (cmd) {
@@ -225,7 +225,6 @@ loioctl(ifp, cmd, data)
 
 	case SIOCADDMULTI:
 	case SIOCDELMULTI:
-		ifr = (struct ifreq *)data;
 		if (ifr == 0) {
 			error = EAFNOSUPPORT;		/* XXX */
 			break;
@@ -243,6 +242,10 @@ loioctl(ifp, cmd, data)
 		}
 		break;
 
+	case SIOCSIFMTU:
+		ifp->if_mtu = ifr->ifr_mtu;
+		break;
+
 	default:
 		error = EINVAL;
 	}