1# Copyright 2021 Google LLC 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15[ -z "${gbmc_br_ula_lib-}" ] || return 16 17source /usr/share/network/lib.sh || exit 18 19gbmc_br_ula_init= 20gbmc_br_ula_mac= 21 22gbmc_br_ula_update() { 23 [ -n "$gbmc_br_ula_init" ] || return 24 25 echo "gBMC Bridge ULA MAC: ${gbmc_br_ula_mac:-(deleted)}" >&2 26 27 local addr= 28 contents='[Network]'$'\n' 29 if [ -n "$gbmc_br_ula_mac" ]; then 30 local sfx 31 if sfx="$(mac_to_eui64 "$gbmc_br_ula_mac")" && 32 addr="$(ip_pfx_concat "fdb5:0481:10ce::/64" "$sfx")"; then 33 contents+="Address=$addr"$'\n' 34 fi 35 fi 36 37 local netfile 38 for netfile in /run/systemd/network/{00,}-bmc-gbmcbr.network.d/60-ula.conf; do 39 mkdir -p -m 755 "$(dirname "$netfile")" 40 printf '%s' "$contents" >"$netfile" 41 done 42 43 # Ensure that systemd-networkd performs a reconfiguration as it doesn't 44 # currently check the mtime of drop-in files. 45 touch -c /lib/systemd/network/*-bmc-gbmcbr.network 46 47 if [ "$(systemctl is-active systemd-networkd)" != 'inactive' ]; then 48 networkctl reload 49 networkctl reconfigure gbmcbr 50 fi 51} 52 53gbmc_br_ula_hook() { 54 if [ "$change" = 'init' ]; then 55 gbmc_br_ula_init=1 56 gbmc_br_ula_update 57 elif [ "$change" = 'link' -a "$intf" = 'gbmcbr' ]; then 58 if [ "$action" = 'add' -a "$mac" != "$gbmc_br_ula_mac" ]; then 59 gbmc_br_ula_mac="$mac" 60 gbmc_br_ula_update 61 fi 62 if [ "$action" = 'del' -a "$mac" = "$gbmc_br_ula_mac" ]; then 63 gbmc_br_ula_mac= 64 gbmc_br_ula_update 65 fi 66 fi 67} 68 69GBMC_IP_MONITOR_HOOKS+=(gbmc_br_ula_hook) 70 71gbmc_br_ula_lib=1 72