75 lines
2.1 KiB
Bash
75 lines
2.1 KiB
Bash
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#!/bin/bash
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# Copyright 2021 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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[[ -n ${gbmc_br_ula_lib-} ]] && return
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# shellcheck source=meta-google/recipes-google/networking/network-sh/lib.sh
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source /usr/share/network/lib.sh || exit
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gbmc_br_ula_init=
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gbmc_br_ula_mac=
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gbmc_br_ula_update() {
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[[ -n $gbmc_br_ula_init ]] || return
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echo "gBMC Bridge ULA MAC: ${gbmc_br_ula_mac:-(deleted)}" >&2
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local addr=
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contents='[Network]'$'\n'
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if [[ -n $gbmc_br_ula_mac ]]; then
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local sfx
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if sfx="$(mac_to_eui64 "$gbmc_br_ula_mac")" &&
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addr="$(ip_pfx_concat "fdb5:0481:10ce::/64" "$sfx")"; then
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contents+="Address=$addr"$'\n'
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fi
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fi
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local netfile
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for netfile in /run/systemd/network/{00,}-bmc-gbmcbr.network.d/60-ula.conf; do
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mkdir -p "$(dirname "$netfile")"
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printf '%s' "$contents" >"$netfile"
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done
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# Ensure that systemd-networkd performs a reconfiguration as it doesn't
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# currently check the mtime of drop-in files.
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touch -c /lib/systemd/network/*-bmc-gbmcbr.network
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if [[ $(systemctl is-active systemd-networkd) != inactive ]]; then
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networkctl reload
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networkctl reconfigure gbmcbr
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fi
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}
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gbmc_br_ula_hook() {
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# shellcheck disable=SC2154
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if [[ $change == init ]]; then
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gbmc_br_ula_init=1
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gbmc_br_ula_update
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elif [[ $change == link && $intf == gbmcbr ]]; then
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if [[ $action == add && $mac != "$gbmc_br_ula_mac" ]]; then
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gbmc_br_ula_mac="$mac"
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gbmc_br_ula_update
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fi
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if [[ $action == del && $mac == "$gbmc_br_ula_mac" ]]; then
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gbmc_br_ula_mac=
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gbmc_br_ula_update
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fi
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fi
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}
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GBMC_IP_MONITOR_HOOKS+=(gbmc_br_ula_hook)
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gbmc_br_ula_lib=1
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