def kill_dhclient(device_name, family=4):
for pid in pgrep('dhclient'):
try:
with open('/proc/%s/cmdline' % pid) as cmdline:
args = cmdline.read().strip('\0').split('\0')
except IOError as ioe:
if ioe.errno == errno.ENOENT: # exited before we read cmdline
continue
if args[-1] != device_name: # dhclient of another device
continue
tokens = iter(args)
pid_file = '/var/run/dhclient.pid' # Default client pid location
running_family = 4
for token in tokens:
if token == '-pf':
pid_file = next(tokens)
elif token == '--no-pid':
pid_file = None
elif token == '-6':
running_family = 6
if running_family != family:
continue
logging.info('Stopping dhclient -%s before running our own on %s',
family, device_name)
kill_and_rm_pid(pid, pid_file)
# In order to be able to configure the device with dhclient again. It is
# necessary that dhclient does not find it configured with any IP address
# (except 0.0.0.0 which is fine, or IPv6 link-local address needed for
# DHCPv6).
ipwrapper.addrFlush(device_name, family)
def kill_dhclient(device_name, family=4):
for pid in pgrep('dhclient'):
try:
with open('/proc/%s/cmdline' % pid) as cmdline:
args = cmdline.read().strip('\0').split('\0')
except IOError as ioe:
if ioe.errno == errno.ENOENT: # exited before we read cmdline
continue
if args[-1] != device_name: # dhclient of another device
continue
tokens = iter(args)
pid_file = '/var/run/dhclient.pid' # Default client pid location
running_family = 4
for token in tokens:
if token == '-pf':
pid_file = next(tokens)
elif token == '--no-pid':
pid_file = None
elif token == '-6':
running_family = 6
if running_family != family:
continue
logging.info('Stopping dhclient -%s before running our own on %s',
family, device_name)
kill_and_rm_pid(pid, pid_file)
# In order to be able to configure the device with dhclient again. It is
# necessary that dhclient does not find it configured with any IP address
# (except 0.0.0.0 which is fine, or IPv6 link-local address needed for
# DHCPv6).
ipwrapper.addrFlush(device_name, family)
def shutdown(self):
try:
pid = int(open(self.pidFile).readline().strip())
except IOError as e:
if e.errno == os.errno.ENOENT:
pass
else:
raise
else:
kill_and_rm_pid(pid, self.pidFile)
def shutdown(self):
try:
pid = int(open(self.pidFile).readline().strip())
except IOError as e:
if e.errno == os.errno.ENOENT:
pass
else:
raise
else:
kill_and_rm_pid(pid, self.pidFile)
def shutdown(self):
try:
pid = int(open(self.pidFile).readline().strip())
except IOError as e:
if e.errno == os.errno.ENOENT:
pass
else:
raise
else:
logging.info('Stopping dhclient-%s on %s', self.family, self.iface)
kill_and_rm_pid(pid, self.pidFile)
if linkiface.exists(self.iface):
address.flush(self.iface)
def shutdown(self):
try:
pid = int(open(self.pidFile).readline().strip())
except IOError as e:
if e.errno == os.errno.ENOENT:
pass
else:
raise
else:
logging.info('Stopping dhclient-%s on %s', self.family, self.iface)
kill_and_rm_pid(pid, self.pidFile)
if linkiface.exists(self.iface):
address.flush(self.iface)
def kill(device_name, family=4):
if not linkiface.exists(device_name):
return
for pid, pid_file in _pid_lookup(device_name, family):
logging.info('Stopping dhclient-%s on %s', family, device_name)
kill_and_rm_pid(pid, pid_file)
def kill(device_name, family=4):
if not linkiface.exists(device_name):
return
for pid, pid_file in _pid_lookup(device_name, family):
logging.info('Stopping dhclient-%s on %s', family, device_name)
kill_and_rm_pid(pid, pid_file)
def kill(device_name, family=4):
for pid, pid_file in _pid_lookup(device_name, family):
logging.info('Stopping dhclient -%s on %s', family, device_name)
kill_and_rm_pid(pid, pid_file)
def kill(device_name, family=4):
for pid, pid_file in _pid_lookup(device_name, family):
logging.info('Stopping dhclient -%s on %s', family, device_name)
kill_and_rm_pid(pid, pid_file)
