def monitor(self):
# The monitoring code to collect RTNL messages
# asynchronously.
# Do **NOT** run manually.
# use a separate socket for monitoring
ip = RawIPRoute()
ip.bind(RTNLGRP_LINK)
poll = select.poll()
poll.register(ip, select.POLLIN | select.POLLPRI)
poll.register(self.cmd, select.POLLIN | select.POLLPRI)
self.event.set()
while True:
events = poll.poll()
for (fd, evt) in events:
if fd == ip.fileno():
msgs = ip.get()
for msg in msgs:
name = msg.get_attr('IFLA_IFNAME')
event = msg.get('event')
if name not in self.rtm_events:
continue
if event == 'RTM_NEWLINK':
self.rtm_events[name].set()
self.rtm_newlink[name].append(msg)
elif event == 'RTM_DELLINK':
self.rtm_dellink[name].append(msg)
else:
ip.close()
return
def monitor(event, ifname, cmd):
with RawIPRoute() as ipr:
poll = select.poll()
poll.register(ipr, select.POLLIN | select.POLLPRI)
poll.register(cmd, select.POLLIN | select.POLLPRI)
ipr.bind()
while True:
events = poll.poll()
for (fd, event) in events:
if fd == ipr.fileno():
msgs = ipr.get()
for msg in msgs:
if msg.get('event') == event and \
msg.get_attr('IFLA_IFNAME') == ifname:
return
else:
return
def set_interface_operstate(iface_index, linkmode, operstate):
"""
Set interface operational state.
https://www.kernel.org/doc/Documentation/networking/operstates.txt
"""
done = True
try:
with RawIPRoute() as rawip:
rawip.link('set',
index=iface_index,
IFLA_LINKMODE=linkmode,
IFLA_OPERSTATE=operstate)
except NetlinkError as netlink_err:
g_exception_logger.exception(netlink_err)
done = False
return done
def setup(self):
# The setup procedure for a test.
# Do **NOT** run manually.
# create the raw socket
self.ip = RawIPRoute()
