83 lines
1.7 KiB
Bash
83 lines
1.7 KiB
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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netdev_check_for_carrier() {
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local -r dev="$1"
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for i in {1..5}; do
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carrier="$(cat /sys/class/net/${dev}/carrier)"
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if [[ "${carrier}" -ne 1 ]] ; then
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echo "carrier not ready yet..." >&2
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sleep 1
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else
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echo "carrier ready" >&2
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break
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fi
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done
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echo "${carrier}"
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}
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# Assumes that there is no existing ipvlan device on the physical device
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setup_loopback_environment() {
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local dev="$1"
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# Fail hard if cannot turn on loopback mode for current NIC
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ethtool -K "${dev}" loopback on || exit 1
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sleep 1
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# Check for the carrier
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carrier=$(netdev_check_for_carrier ${dev})
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if [[ "${carrier}" -ne 1 ]] ; then
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echo "setup_loopback_environment failed"
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exit 1
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fi
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}
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setup_macvlan_ns(){
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local -r link_dev="$1"
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local -r ns_name="$2"
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local -r ns_dev="$3"
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local -r ns_mac="$4"
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local -r addr="$5"
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ip link add link "${link_dev}" dev "${ns_dev}" \
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address "${ns_mac}" type macvlan
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exit_code=$?
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if [[ "${exit_code}" -ne 0 ]]; then
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echo "setup_macvlan_ns failed"
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exit $exit_code
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fi
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[[ -e /var/run/netns/"${ns_name}" ]] || ip netns add "${ns_name}"
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ip link set dev "${ns_dev}" netns "${ns_name}"
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ip -netns "${ns_name}" link set dev "${ns_dev}" up
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if [[ -n "${addr}" ]]; then
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ip -netns "${ns_name}" addr add dev "${ns_dev}" "${addr}"
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fi
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sleep 1
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}
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cleanup_macvlan_ns(){
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while (( $# >= 2 )); do
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ns_name="$1"
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ns_dev="$2"
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ip -netns "${ns_name}" link del dev "${ns_dev}"
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ip netns del "${ns_name}"
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shift 2
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done
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}
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cleanup_loopback(){
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local -r dev="$1"
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ethtool -K "${dev}" loopback off
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sleep 1
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# Check for the carrier
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carrier=$(netdev_check_for_carrier ${dev})
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if [[ "${carrier}" -ne 1 ]] ; then
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echo "setup_loopback_environment failed"
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exit 1
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fi
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}
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