meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-ra.sh.in

#!/bin/bash
# Copyright 2024 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.

# shellcheck source=meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-lib.sh
source /usr/share/gbmc-br-lib.sh || exit

update_rtr() {
  true
}

update_fqdn() {
  (( IP_OFFSET == 0 )) && return
  default_update_fqdn "$@"
}

update_pfx() {
  local pfx="$1"
  (( IP_OFFSET == 0 )) && return
  gbmc_br_set_ip "$pfx" || true
  echo "IP $pfx set on $RA_IF" >&2
}

RA_IF=gbmcbr
IP_OFFSET=@IP_OFFSET@
# Use the lowest priority, except for kernel RA discovered routes.
# We want closer NICs to provide a default route if existing.
ROUTE_METRIC=1000

echo "Waiting for ${RA_IF} configuration" >&2

st_check_timeout=60
st_check_start=$SECONDS
while (( SECONDS - st_check_start < st_check_timeout )); do
  if_st=$(networkctl list "${RA_IF}")
  if [[ "${if_st}" =~ "configured" ]]; then
    echo "${RA_IF} is configured, doing RA" >&2
    break;
  elif [[ "${if_st}" =~ "failed" ]]; then
    echo "${RA_IF} failed, need reconfiguring" >&2
    gbmc_net_networkd_reload "${RA_IF}"
  else
    echo "${RA_IF} still configuring, retry in 2s" >&2
  fi
  sleep 2
done

# shellcheck source=meta-google/recipes-google/networking/gbmc-net-common/gbmc-ra.sh
source /usr/share/gbmc-ra.sh || exit