93 lines
2 KiB
Bash
Executable file
93 lines
2 KiB
Bash
Executable file
#!/bin/sh
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set -e
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[ -n "$VERBOSE" ] && set -x
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is_vlan() {
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case "$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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echo "Interface ${IFACE} exists but is of type ${iface_type} instead of dummy"
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exit 1
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fi
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fi
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ip link add "${IFACE}" type dummy
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fi
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if is_vlan; then
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if [ -d "/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 [ ! -d "/sys/class/net/${IF_VLAN_RAW_DEVICE}" ]; then
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echo "Underlay 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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${MOCK} ip link add link "${IF_VLAN_RAW_DEVICE}" name "${IFACE}" type vlan id "${IF_VLAN_ID}"
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fi
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;;
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up)
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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 $IF_HWADDRESS"
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${MOCK} ip link set up dev "${IFACE}" ${IF_LINK_OPTIONS}
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# Set alias is configured
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if [ "${IF_ALIAS}" ]; then
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${MOCK} ip link set alias "${IF_ALIAS}" dev "${IFACE}"
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fi
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;;
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down)
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${MOCK} ip link set down dev "${IFACE}"
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;;
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post-down)
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if [ "${IF_LINK_TYPE}" = "dummy" ] || is_vlan; then
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if [ -z "${MOCK}" -a ! -d "/sys/class/net/${IFACE}" ]; then
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exit 0
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fi
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ip link del "${IFACE}"
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fi
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;;
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depend)
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if is_vlan; then
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echo "$IF_VLAN_RAW_DEVICE"
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fi
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;;
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esac
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