diff options
author | dheerajpdsk <p.dheeraj.srujan.kumar@intel.com> | 2022-05-06 02:48:05 +0300 |
---|---|---|
committer | GitHub <noreply@github.com> | 2022-05-06 02:48:05 +0300 |
commit | ca8d06bc610af08c2d3efc487aa9519989b743e6 (patch) | |
tree | c557da2136640a8ce48439f19fe5f7071faffeca /meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-dhcp.sh | |
parent | 7cf0c1cd0ce835d1833509b7b911e8a97380278b (diff) | |
parent | 18f97faa411078b95d042d207f5fff32bc8ece1d (diff) | |
download | openbmc-ca8d06bc610af08c2d3efc487aa9519989b743e6.tar.xz |
Update
Diffstat (limited to 'meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-dhcp.sh')
-rw-r--r-- | meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-dhcp.sh | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-dhcp.sh b/meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-dhcp.sh new file mode 100644 index 000000000..42a077d09 --- /dev/null +++ b/meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-dhcp.sh @@ -0,0 +1,101 @@ +#!/bin/bash +# 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. + +# A list of functions which get executed for each bound DHCP lease. +# These are configured by the files included below. +GBMC_BR_DHCP_HOOKS=() + +# Load configurations from a known location in the filesystem to populate +# hooks that are executed after each event. +shopt -s nullglob +for conf in /usr/share/gbmc-br-dhcp/*.sh; do + # SC doesn't like dynamic source loading + # shellcheck disable=SC1090 + source "$conf" +done + +gbmc_br_dhcp_run_hooks() { + local hook + for hook in "${GBMC_BR_DHCP_HOOKS[@]}"; do + "$hook" || continue + done +} + +# SC can't find this path during repotest +# shellcheck disable=SC1091 +source /usr/share/network/lib.sh || exit + +if [ "$1" = bound ]; then + # Variable is from the environment via udhcpc6 + # shellcheck disable=SC2154 + echo "DHCPv6(gbmcbr): $ipv6/128" >&2 + + pfx_bytes=() + ip_to_bytes pfx_bytes "$ipv6" + # Ensure we are a BMC and have a suffix nibble, the 0th index is reserved + if (( pfx_bytes[8] != 0xfd || pfx_bytes[9] & 0xf == 0 )); then + echo "Invalid address" >&2 + exit + fi + # Ensure we don't have more than a /80 address + for (( i = 10; i < 16; ++i )); do + if (( pfx_bytes[i] != 0 )); then + echo "Invalid address" >&2 + exit + fi + done + + pfx="$(ip_bytes_to_str pfx_bytes)" + (( pfx_bytes[9] &= 0xf0 )) + stateless_pfx="$(ip_bytes_to_str pfx_bytes)" + read -r -d '' contents <<EOF +[Network] +Address=$pfx/128 +IPv6PrefixDelegation=yes +[IPv6PrefixDelegation] +RouterLifetimeSec=60 +[IPv6Prefix] +Prefix=$stateless_pfx/80 +PreferredLifetimeSec=60 +ValidLifetimeSec=60 +[IPv6RoutePrefix] +Route=$pfx/80 +LifetimeSec=60 +[Route] +Destination=$stateless_pfx/76 +Type=unreachable +Metric=1024 +EOF + + for file in /etc/systemd/network/{00,}-bmc-gbmcbr.network.d/50-public.conf; do + mkdir -p "$(dirname "$file")" + printf '%s' "$contents" >"$file" + 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 [ "$(systemctl is-active systemd-networkd)" != 'inactive' ]; then + networkctl reload && networkctl reconfigure gbmcbr + fi + + if [ -n "${fqdn-}" ]; then + echo "Using hostname $fqdn" >&2 + hostnamectl set-hostname "$fqdn" || true + fi + + gbmc_br_dhcp_run_hooks +fi |