79 lines
1.6 KiB
Bash
Executable file
79 lines
1.6 KiB
Bash
Executable file
#!/bin/sh
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set -e
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[ -n "$VERBOSE" ] && set -x
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IF_LINK_OPTIONS="$IF_LINK_OPTIONS"
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[ -n "$IF_MTU" ] && IF_LINK_OPTIONS="$IF_LINK_OPTIONS mtu $IF_MTU"
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[ -n "$IF_HWADDRESS" ] && IF_LINK_OPTIONS="$IF_LINK_OPTIONS address $IF_HWADDRESS"
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is_vlan() {
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case "$IFACE" in
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*#*) return 1 ;;
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*:*) return 1 ;;
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vlan*.*) return 1 ;;
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vlan*)
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IF_VLAN_ID="${IFACE#vlan}"
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[ -n "${IF_VLAN_RAW_DEVICE:-}" ] && return 0
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return 1
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;;
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*.*)
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IF_VLAN_RAW_DEVICE="${IFACE%.*}"
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IF_VLAN_ID="${IFACE##*.}"
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return 0
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;;
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*)
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[ -z "${IF_VLAN_ID:-}" ] && return 1
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[ -z "${IF_VLAN_RAW_DEVICE:-}" ] && return 1
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return 0
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;;
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esac
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}
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case "$PHASE" in
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pre-up)
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if [ "${IF_LINK_TYPE}" = "dummy" ]; then
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if [ -d "/sys/class/net/${IFACE}" ]; then
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iface_type=$(ip -d link show dev "${IFACE}" | head -n3 | tail -n1 | awk '{ print $1 }')
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if [ "${iface_type}" = 'dummy' ]; then
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exit 0
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fi
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fi
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ip link add "${IFACE}" type dummy
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fi
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;;
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up|down)
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if is_vlan; then
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ADD_DEL="add"
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[ "$PHASE" = "down" ] && ADD_DEL="delete"
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if [ "$PHASE" = "up" -a -e /sys/class/net/$IFACE ]; then
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exit 0
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fi
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if [ -z "$MOCK" ]; then
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if ! ip link show "$IF_VLAN_RAW_DEVICE" >/dev/null; then
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echo "Device $IF_VLAN_RAW_DEVICE for $IFACE does not exist"
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exit 1
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fi
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if ! [ -d /proc/net/vlan ]; then
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echo "Loading 8021q kernel module for VLAN support"
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${MOCK} modprobe 8021q
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fi
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fi
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${MOCK} ip link $ADD_DEL link "$IF_VLAN_RAW_DEVICE" name "$IFACE" type vlan id "$IF_VLAN_ID"
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[ "$PHASE" = "down" ] && exit 0
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fi
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${MOCK} ip link set $PHASE dev $IFACE $IF_LINK_OPTIONS
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;;
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depend)
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if is_vlan; then
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echo "$IF_VLAN_RAW_DEVICE"
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fi
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;;
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esac
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