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Fix DECONFIG, BOUND and RENEW events

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JDierkse
2021-03-01 10:01:47 +01:00
parent b6ff5e4650
commit 9ad24be9ca
1 changed files with 26 additions and 23 deletions
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net-dhcp/network.py
+24 -21
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@@ -331,32 +331,35 @@ class ContainerDHCPManager:
self._thread.start()
def _on_event(self, dhcp, event_type, _event):
if event_type != udhcpc.EventType.RENEW or not dhcp.gateway:
return
if event_type == udhcpc.EventType.DECONFIG:
logger.info('[dhcp container] DECONFIG Event %s', _event)
logger.info('[dhcp container] Flushing IP addresses')
subprocess.check_call(['nsenter', f'-n{dhcp.netns}', '--', '/sbin/ip', 'address', 'flush', 'dev',
str(dhcp.iface['ifname'])], timeout=1, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL)
elif event_type == udhcpc.EventType.RENEW or event_type == udhcpc.EventType.BOUND:
if event_type == udhcpc.EventType.RENEW:
logger.info('[dhcp container] RENEW Event %s', _event)
elif event_type == udhcpc.EventType.BOUND:
logger.info('[dhcp container] BOUND Event %s', _event)
logger.info('[dhcp container] Flushing IP addresses')
subprocess.check_call(['nsenter', f'-n{dhcp.netns}', '--', '/sbin/ip', 'address', 'flush', 'dev',
str(dhcp.iface['ifname'])], timeout=1, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL)
logger.info('[dhcp container] Adding IP addresses %s', dhcp.ip)
subprocess.check_call(['nsenter', f'-n{dhcp.netns}', '--', '/sbin/ip', 'address', 'add', str(dhcp.ip), 'dev',
str(dhcp.iface['ifname'])], timeout=1, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL)
if dhcp.gateway:
logger.info('[dhcp container] Replacing gateway with %s', dhcp.gateway)
subprocess.check_call(['nsenter', f'-n{dhcp.netns}', '--', '/sbin/ip', 'route', 'replace', 'default', 'via',
str(dhcp.gateway)], timeout=1, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL)
# TODO: Adding default route with NDB seems to be broken (because of the dst syntax?)
#for route in ndb.routes:
# if route['type'] != rtypes['RTN_UNICAST'] or \
# route['oif'] != dhcp.iface['index'] or \
# (route['family'] == socket.AF_INET6 and not self.ipv6) or \
# route['dst'] not in ('', '/0'):
# continue
# # Needed because Route.remove() doesn't like a blank destination
# logger.info('Removing default route via %s', route['gateway'])
# route['dst'] = '::' if route['family'] == socket.AF_INET6 else '0.0.0.0'
# (route
# .remove()
# .commit())
#logger.info('Adding default route via %s', dhcp.gateway)
#(ndb.routes.add({'oif': dhcp.iface['index'], 'gateway': dhcp.gateway})
# .commit())
else:
logger.info('[dhcp container] Unhandled Event %s: %s', event_type,_event)
def run(self):
try: