def get_iproute(namespace):
# From iproute.py:
# `IPRoute` -- RTNL API to the current network namespace
# `NetNS` -- RTNL API to another network namespace
if namespace:
# do not try and create the namespace
return pyroute2.NetNS(namespace, flags=0, libc=priv_linux.get_cdll())
else:
return pyroute2.IPRoute()
def remove_netns(name, **kwargs):
"""Remove a network namespace.
:param name: The name of the namespace to remove
"""
try:
netns.remove(name, libc=priv_linux.get_cdll())
except OSError as e:
if e.errno != errno.ENOENT:
raise
def create_netns(name, **kwargs):
"""Create a network namespace.
:param name: The name of the namespace to create
"""
try:
netns.create(name, libc=priv_linux.get_cdll())
except OSError as e:
if e.errno != errno.EEXIST:
raise
def create_netns(name, **kwargs):
"""Create a network namespace.
:param name: The name of the namespace to create
"""
pid = os.fork()
if pid == 0:
try:
netns._create(name, libc=priv_linux.get_cdll())
except OSError as e:
if e.errno != errno.EEXIST:
os._exit(1)
except Exception:
os._exit(1)
os._exit(0)
else:
if os.waitpid(pid, 0)[1]:
raise RuntimeError(_('Error creating namespace %s' % name))
