802.1Q VLAN support (<tis@foobar.fi>, #82593)r7-05

1 files changed, 59 insertions, 0 deletions

diff --git a/sysconfig/network-scripts/ifup b/sysconfig/network-scripts/ifup
index 4f870d16..b54abe43 100755
--- a/sysconfig/network-scripts/ifup
+++ b/sysconfig/network-scripts/ifup
@@ -62,6 +62,65 @@ else
     ISALIAS=no
 fi
 
+if [ -x /sbin/vconfig -a "${VLAN}" = "yes" ]; then
+    # 802.1q VLAN
+    if echo ${DEVICE} | LANG=C egrep -v '(:)' | LANG=C egrep -q 'eth[0-9][0-9]*\.[0-9][0-9]?[0-9]?[0-9]?' ; then
+	[ -d /proc/net/vlan ] || modprobe 8021q >/dev/null 2>&1 || {
+	    echo $"No 802.1Q VLAN support available in kernel."
+	    echo $"Error initializing device ${DEVICE}"
+	    logger -p daemon.info -t ifup \
+		$"No 802.1Q VLAN support available in kernel for device ${DEVICE}"
+	    exit 1
+	}
+
+	VID="`echo ${DEVICE} | \
+	    LANG=C egrep 'eth[0-9]+\.[0-9][0-9]?[0-9]?[0-9]?$' | \
+	    LANG=C sed 's/^[a-z0-9]*\.//g;s/^0*//'`"
+	PHYSDEV="`echo ${DEVICE} | \
+	    LANG=C egrep 'eth[0-9]+\.[0-9][0-9]?[0-9]?[0-9]?$' | \
+	    LANG=C sed 's/\.[a-z0-9]*$//g'`"
+
+	is_available ${PHYSDEV} || {
+	    if [ "$?" = "1" ] ; then
+		echo $"$alias device ${DEVICE} does not seem to be present, delaying initialization."
+		exit 1
+	    else
+		exit 0
+	    fi
+	}
+
+	# Link on Physical device needs to be up but no ip required
+	ip addr add 0.0.0.0/32 dev ${PHYSDEV}
+	ip -o link set dev ${PHYSDEV} up
+
+	if [ ! -f /proc/net/vlan/${DEVICE} ]; then
+	    /sbin/vconfig add ${PHYSDEV} ${VID} || {
+		(logger -p daemon.info -t ifup \
+		    $"ERROR: could not add vlan ${VID} as ${DEVICE} on dev ${PHYSDEV}" &)&
+		echo $"ERROR: could not add vlan ${VID} as ${DEVICE} on dev ${PHYSDEV}"
+		exit 1
+	    }
+	fi
+
+	if [ -f /proc/net/vlan/${DEVICE} ]; then
+	    case "$REORDER_HDR" in
+		yes|1)
+		    /sbin/vconfig set_flag ${DEVICE} 1 1 || {
+			(logger -p daemon.info -t ifup \
+			    "WARNING: vconfig not able to enable REORDER_HDR on ${DEVICE}" &)&
+		    }
+		    ;;
+		no|0)
+		    /sbin/vconfig set_flag ${DEVICE} 1 0 || {
+			(logger -p daemon.info -t ifup \
+			    $"WARNING: vconfig not able to disable REORDER_HDR on ${DEVICE}" &)&
+		    }
+		    ;;
+	    esac
+	fi
+    fi
+fi
+
 # Old BOOTP variable
 if [ "${BOOTP}" = "yes" ]; then
     BOOTPROTO=bootp