Your Name
81 lines
2.6 KiB
Bash
81 lines
2.6 KiB
Bash
#!/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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# A list of functions which get executed for each bound DHCP lease.
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# These are configured by the files included below.
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# Shellcheck does not understand how this gets referenced
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# shellcheck disable=SC2034
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GBMC_BR_DHCP_HOOKS=()
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# A dict of outstanding items that should prevent DHCP completion
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declare -A GBMC_BR_DHCP_OUTSTANDING=()
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# SC can't find this path during repotest
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# shellcheck disable=SC1091
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source /usr/share/network/lib.sh || exit
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# SC can't find this path during repotest
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# shellcheck disable=SC1091
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source /usr/share/gbmc-br-lib.sh || exit
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# Load configurations from a known location in the filesystem to populate
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# hooks that are executed after each event.
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gbmc_br_source_dir /usr/share/gbmc-br-dhcp || exit
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# Write out the current PID and cleanup when complete
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trap 'rm -f /run/gbmc-br-dhcp.pid' EXIT
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echo "$$" >/run/gbmc-br-dhcp.pid
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if [ "$1" = bound ]; then
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# Variable is from the environment via udhcpc6
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# shellcheck disable=SC2154
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echo "DHCPv6(gbmcbr): $ipv6/128" >&2
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pfx_bytes=()
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ip_to_bytes pfx_bytes "$ipv6"
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# Ensure we are a BMC and have a suffix nibble, the 0th index is reserved
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if (( pfx_bytes[8] != 0xfd || pfx_bytes[9] & 0xf == 0 )); then
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echo "Invalid address" >&2
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exit 1
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fi
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# Ensure we don't have more than a /80 address
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for (( i = 10; i < 16; ++i )); do
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if (( pfx_bytes[i] != 0 )); then
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echo "Invalid address" >&2
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exit 1
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fi
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done
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pfx="$(ip_bytes_to_str pfx_bytes)"
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gbmc_br_set_ip "$pfx" || exit
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if [ -n "${fqdn-}" ]; then
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echo "Using hostname $fqdn" >&2
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hostnamectl set-hostname "$fqdn" || true
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fi
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gbmc_br_run_hooks GBMC_BR_DHCP_HOOKS || exit
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# If any of our hooks had expectations we should fail here
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if [ "${#GBMC_BR_DHCP_OUTSTANDING[@]}" -gt 0 ]; then
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echo "Not done with DHCP process: ${!GBMC_BR_DHCP_OUTSTANDING[*]}" >&2
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exit 1
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fi
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# Ensure that the installer knows we have completed processing DHCP by
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# running a service that reports completion
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echo 'Start DHCP Done' >&2
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systemctl start dhcp-done@DONE --no-block
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fi
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