mirror of
https://github.com/kernelkit/infix.git
synced 2026-08-05 23:23:02 +02:00
Stefan SchlosserandJoachim Wiberg
60f459687c
This patch introduces a new yang yang model for DHCP server and relay, using dnsmasq to provide the functionality on a per-interface basis. Available DHCP options will be queried by confd on startup and can then be configured in a flexible manner. The DHCP option 82 feature has been realized by patching dnsmasq (see patches/dnsmasq/2.90/0000-relay-agent-info.patch). Signed-off-by: Stefan Schlosser <sgs@grmmbl.org>
80 lines
2.2 KiB
Python
80 lines
2.2 KiB
Python
from datetime import datetime
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from .host import HOST
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def lease_info(ifname):
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"""Populate DHCP leases table"""
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leases = f"/var/run/dnsmasq-{ifname}.leases"
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hosts = []
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try:
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with open(leases, 'r', encoding='utf-8') as fd:
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for line in fd:
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tokens = line.strip().split(" ")
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if len(tokens) != 5:
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continue
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host = {
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"ip-address": tokens[2],
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"hardware-address": tokens[1],
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}
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dt = datetime.utcfromtimestamp(int(tokens[0]))
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host["expires"] = dt.isoformat() + "+00:00"
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if tokens[3] != '*':
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host["hostname"] = tokens[3]
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if tokens[4] != '*':
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host["client-identifier"] = tokens[4]
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hosts.append(host)
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except (IOError, OSError, ValueError):
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pass
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return {
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"host-count": len(hosts),
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"host": hosts
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}
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def status(servers):
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"""Populate DHCP server status"""
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data = HOST.run_json(['/usr/libexec/statd/dhcp-server-status'], default=[])
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if data == []:
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return
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for entry in data:
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metrics = entry["metrics"]
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servers.append({
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"if-name": entry["if-name"],
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"packet-statistics": {
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"sent": {
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"offer-count": metrics["dhcp_offer"],
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"ack-count": metrics["dhcp_ack"],
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"nak-count": metrics["dhcp_nak"]
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},
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"received": {
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"decline-count": metrics["dhcp_decline"],
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"discover-count": metrics["dhcp_discover"],
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"request-count": metrics["dhcp_request"],
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"release-count": metrics["dhcp_release"],
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"inform-count": metrics["dhcp_inform"]
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}
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},
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"server": {
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"lease": lease_info(entry["if-name"])
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}
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})
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def operational():
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"""Return operational status for DHCP server"""
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out = {
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"infix-dhcp-server:dhcp-server": {
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"server-if": []
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}
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}
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status(out['infix-dhcp-server:dhcp-server']['server-if'])
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return out
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