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# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
[ -z "${gbmc_br_ula_lib-}" ] || return
source /usr/share/network/lib.sh || exit
gbmc_br_ula_init=
gbmc_br_ula_mac=
gbmc_br_ula_update() {
[ -n "$gbmc_br_ula_init" ] || return
echo "gBMC Bridge ULA MAC: ${gbmc_br_ula_mac:-(deleted)}" >&2
local addr=
contents='[Network]'$'\n'
if [ -n "$gbmc_br_ula_mac" ]; then
local sfx
if sfx="$(mac_to_eui64 "$gbmc_br_ula_mac")" &&
addr="$(ip_pfx_concat "fdb5:0481:10ce::/64" "$sfx")"; then
contents+="Address=$addr"$'\n'
fi
fi
local netfile
for netfile in /run/systemd/network/{00,}-bmc-gbmcbr.network.d/60-ula.conf; do
mkdir -p -m 755 "$(dirname "$netfile")"
printf '%s' "$contents" >"$netfile"
done
# Ensure that systemd-networkd performs a reconfiguration as it doesn't
# currently check the mtime of drop-in files.
touch -c /lib/systemd/network/*-bmc-gbmcbr.network
if [ "$(systemctl is-active systemd-networkd)" != 'inactive' ]; then
networkctl reload
networkctl reconfigure gbmcbr
fi
}
gbmc_br_ula_hook() {
if [ "$change" = 'init' ]; then
gbmc_br_ula_init=1
gbmc_br_ula_update
elif [ "$change" = 'link' -a "$intf" = 'gbmcbr' ]; then
if [ "$action" = 'add' -a "$mac" != "$gbmc_br_ula_mac" ]; then
gbmc_br_ula_mac="$mac"
gbmc_br_ula_update
fi
if [ "$action" = 'del' -a "$mac" = "$gbmc_br_ula_mac" ]; then
gbmc_br_ula_mac=
gbmc_br_ula_update
fi
fi
}
GBMC_IP_MONITOR_HOOKS+=(gbmc_br_ula_hook)
gbmc_br_ula_lib=1
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