| Current File : //usr/sbin/vconfig |
#!/bin/sh -e
# Copyright (C) 2013 Andrew Shadura
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library 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 Library 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.
usage () {
cat <<EOF
Usage: add [interface-name] [vlan_id]
rem [vlan-name]
set_flag [interface-name] [flag-num] [0 | 1]
set_egress_map [vlan-name] [skb_priority] [vlan_qos]
set_ingress_map [vlan-name] [skb_priority] [vlan_qos]
set_name_type [name-type]
* The [interface-name] is the name of the ethernet card that hosts
the VLAN you are talking about.
* The vlan_id is the identifier (0-4095) of the VLAN you are operating on.
* skb_priority is the priority in the socket buffer (sk_buff).
* vlan_qos is the 3 bit priority in the VLAN header
* name-type: VLAN_PLUS_VID (vlan0005), VLAN_PLUS_VID_NO_PAD (vlan5),
DEV_PLUS_VID (eth0.0005), DEV_PLUS_VID_NO_PAD (eth0.5)
* FLAGS: 1 REORDER_HDR When this is set, the VLAN device will move the
ethernet header around to make it look exactly like a real
ethernet device. This may help programs such as DHCPd which
read the raw ethernet packet and make assumptions about the
location of bytes. If you don't need it, don't turn it on, because
there will be at least a small performance degradation. Default
is OFF.
EOF
}
ARGC=$(expr $# + 1)
STATEDIR=/run/network/vlan
echo "" >&2
echo "Warning: vconfig is deprecated and might be removed in the future, please migrate to ip(route2) as soon as possible!" >&2
echo "" >&2
if [ $ARGC -lt 3 -o $ARGC -gt 5 ]
then
echo "Expecting argc to be 3-5, inclusive. Was: $ARGC" >&2
usage
exit 1
fi
ip () {
/sbin/ip "$@"
}
condret () {
[ "$1" = "$2" ] && echo -n "$3"
}
map () {
v="$1"
shift
for pq in "$@"
do
condret "$v" $pq && return 0
done
false
}
add () {
NAME_TYPE=DEV_PLUS_VID_NO_PAD
[ -r "$STATEDIR/name-type" ] && NAME_TYPE=$(cat "$STATEDIR/name-type")
VLAN_ID="$2"
IFACE="$1"
case "$NAME_TYPE" in
VLAN_PLUS_VID)
NAME="$(printf vlan%.4d "$VLAN_ID")"
;;
VLAN_PLUS_VID_NO_PAD)
NAME="vlan$VLAN_ID"
;;
DEV_PLUS_VID)
NAME="$(printf %s.%.4d "$IFACE" "$VLAN_ID")"
;;
DEV_PLUS_VID_NO_PAD)
NAME="$IFACE.$VLAN_ID"
;;
esac
ip link add link "$IFACE" name "$NAME" type vlan id "$VLAN_ID" || exit 3
}
rem () {
ip link del "$1" || exit 4
}
set_name_type () {
mkdir -p "$STATEDIR" || exit 8
echo "$1" > "$STATEDIR/name-type" || exit 8
}
set_flag () {
echo "$@"
if FLAG=$(map "$3" "0 off" "1 on")
then
ip link set dev "$1" type vlan reorder_hdr "$FLAG" || exit 7
else
echo "Invalid flag parameter specified" >&2
exit 7
fi
}
set_ingress_map () {
ip link set dev "$1" type vlan ingress-qos-map "$2:$3" || exit 6
}
set_egress_map () {
ip link set dev "$1" type vlan egress-qos-map "$2:$3" || exit 5
}
case "$1" in
add)
add "$2" "$3"
;;
rem)
rem "$2"
;;
set_flag)
set_flag "$2" "$3" "$4"
;;
set_ingress_map)
set_ingress_map "$2" "$3" "$4"
;;
set_egress_map)
set_egress_map "$2" "$3" "$4"
;;
set_name_type)
set_name_type "$2"
;;
*)
echo "Unknown command: $1" >&2
exit 5
;;
esac