From 8867d2f19cc29331670e7fbe83dc5cfd3ab36965 Mon Sep 17 00:00:00 2001
From: David Greenman <dg@FreeBSD.org>
Date: Mon, 8 Aug 1994 13:33:16 +0000
Subject: [PATCH] Added support for SIOCSIFMTU.

---
 sys/dev/ep/if_ep.c   | 14 +++++++++++++-
 sys/dev/ie/if_ie.c   | 13 ++++++++++++-
 sys/i386/isa/if_el.c | 14 +++++++++++++-
 sys/i386/isa/if_ep.c | 14 +++++++++++++-
 sys/i386/isa/if_ie.c | 13 ++++++++++++-
 sys/i386/isa/if_is.c | 14 +++++++++++++-
 6 files changed, 76 insertions(+), 6 deletions(-)

diff --git a/sys/dev/ep/if_ep.c b/sys/dev/ep/if_ep.c
index b47f829389b0..57e17691e1ac 100644
--- a/sys/dev/ep/if_ep.c
+++ b/sys/dev/ep/if_ep.c
@@ -22,7 +22,7 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  *	From: if_ep.c,v 1.9 1994/01/25 10:46:29 deraadt Exp $
- *	$Id: if_ep.c,v 1.8 1994/03/15 01:58:22 wollman Exp $
+ *	$Id: if_ep.c,v 1.10 1994/05/25 08:59:10 rgrimes Exp $
  */
 
 #include "ep.h"
@@ -818,6 +818,18 @@ epioctl(ifp, cmd, data)
 		    sizeof(sc->sc_addr));
 		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/dev/ie/if_ie.c b/sys/dev/ie/if_ie.c
index fbb1d5e11add..4499f2354525 100644
--- a/sys/dev/ie/if_ie.c
+++ b/sys/dev/ie/if_ie.c
@@ -39,7 +39,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: if_ie.c,v 1.2 1993/11/25 01:31:36 wollman Exp $
+ *	$Id: if_ie.c,v 1.6 1994/05/27 04:02:04 rgrimes Exp $
  */
 
 /*
@@ -1749,6 +1749,17 @@ ieioctl(ifp, command, data)
     break;
 #endif /* MULTICAST */
 
+  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_el.c b/sys/i386/isa/if_el.c
index c16c5dfb77c7..be1809919583 100644
--- a/sys/i386/isa/if_el.c
+++ b/sys/i386/isa/if_el.c
@@ -6,7 +6,7 @@
  *
  * Questions, comments, bug reports and fixes to kimmel@cs.umass.edu.
  * 
- * $Id$
+ * $Id: if_el.c,v 1.3 1994/08/02 07:39:32 davidg Exp $
  */
 /* Except of course for the portions of code lifted from other FreeBSD
  * drivers (mainly elread, elget and el_ioctl)
@@ -781,6 +781,18 @@ el_ioctl(ifp, command, data)
 				el_init(ifp->if_unit);
 		}
 
+	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_ep.c b/sys/i386/isa/if_ep.c
index b47f829389b0..57e17691e1ac 100644
--- a/sys/i386/isa/if_ep.c
+++ b/sys/i386/isa/if_ep.c
@@ -22,7 +22,7 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  *	From: if_ep.c,v 1.9 1994/01/25 10:46:29 deraadt Exp $
- *	$Id: if_ep.c,v 1.8 1994/03/15 01:58:22 wollman Exp $
+ *	$Id: if_ep.c,v 1.10 1994/05/25 08:59:10 rgrimes Exp $
  */
 
 #include "ep.h"
@@ -818,6 +818,18 @@ epioctl(ifp, cmd, data)
 		    sizeof(sc->sc_addr));
 		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_ie.c b/sys/i386/isa/if_ie.c
index fbb1d5e11add..4499f2354525 100644
--- a/sys/i386/isa/if_ie.c
+++ b/sys/i386/isa/if_ie.c
@@ -39,7 +39,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: if_ie.c,v 1.2 1993/11/25 01:31:36 wollman Exp $
+ *	$Id: if_ie.c,v 1.6 1994/05/27 04:02:04 rgrimes Exp $
  */
 
 /*
@@ -1749,6 +1749,17 @@ ieioctl(ifp, command, data)
     break;
 #endif /* MULTICAST */
 
+  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_is.c b/sys/i386/isa/if_is.c
index 8817a69411d0..021725539278 100644
--- a/sys/i386/isa/if_is.c
+++ b/sys/i386/isa/if_is.c
@@ -11,7 +11,7 @@
  *   of this software, nor does the author assume any responsibility
  *   for damages incurred with its use.
  *
- * $Id$
+ * $Id: if_is.c,v 1.24 1994/08/02 07:39:37 davidg Exp $
  */
 
 /* TODO
@@ -1088,6 +1088,18 @@ is_ioctl(ifp, cmd, 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;
 	}