If an iface type is specified NEVER override it

[projects/rc-scripts.git] / lib / ifup-vlan

#!/bin/sh
#
#    ifup-vlan - Virtual LAN configuration script
#    Copyright (C) 2001 Arkadiusz Miśkiewicz <misiek@pld-linux.org>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#
PATH=/sbin:/usr/sbin:/bin:/usr/bin

cd /lib/rc-scripts
. /etc/sysconfig/network
. /etc/rc.d/init.d/functions
. /lib/rc-scripts/functions.network

CONFIG=$1
source_config

if is_no "${VLAN_NETWORKING}"; then
	exit 0
fi

if [ "foo$2" = "fooboot" ] && is_no "${ONBOOT}"; then
	exit 0
fi

if [ -z "$VLAN_DEV" ]; then
	VLAN_DEV=$(echo ${DEVICE} | awk ' { gsub(/\..*$/,NUL); print $0 } ')
fi
VLAN_ID=$(echo ${DEVICE} | awk " { gsub(/^.*\./,NUL); print \$0 } ")

if [ ! -f /etc/sysconfig/interfaces/ifcfg-${VLAN_DEV} ]; then
	nls "%s is missing. Can't continue." "ifcfg-${VLAN_DEV}"
	exit 1
fi

if ! grep -qlE "ONBOOT=[^n][^o]" /etc/sysconfig/interfaces/ifcfg-${VLAN_DEV}; then
	nls "Warning: ${VLAN_DEV} is disabled on boot."
fi

modprobe -s 8021q

if [ ! -e /proc/net/vlan/config ]; then
	nls "VLAN kernel support is missing. Can't continue."
	exit 1
fi

# set all major variables
setup_ip_param

if (LC_ALL=C ip link add type vlan help 2>&1 | grep -q "VLANID :="); then
	/sbin/ip link set ${VLAN_DEV} up
	/sbin/ip link add link ${VLAN_DEV} name ${DEVICE} type vlan id ${VLAN_ID}
	# default yes
	is_no "${VLAN_REORDER_HDR}" && VLAN_REORDER_HDR=off || VLAN_REORDER_HDR=on
	# default yes
	is_no "$VLAN_GVRP" && VLAN_GVRP=off || VLAN_GVRP=on
	/sbin/ip link set ${DEVICE} type vlan reorder_hdr ${VLAN_REORDER_HDR} gvrp ${VLAN_GVRP}
elif [ -x /sbin/vconfig ]; then
	/sbin/vconfig set_name_type DEV_PLUS_VID_NO_PAD
	/sbin/ip link set ${VLAN_DEV} up
	/sbin/vconfig add ${VLAN_DEV} ${VLAN_ID}
	/sbin/vconfig set_flag ${DEVICE} 1 ${VLAN_REORDER_HDR:-1}
else
	nls "/sbin/vconfig or iproute2 with vlan support is missing. Can't continue."
	exit 1
fi
RESULT=$?

# XXX: more VLAN specific options support

exit $RESULT