def _update_netlink(self, nl_msg):
if getattr(self, "_deleted"):
raise DeviceDeleted("Device was deleted.")
if self.ifindex != nl_msg['index']:
msg = "ifindex of netlink message (%s) doesn't match "\
"the device's (%s)." % (nl_msg['index'], self.ifindex)
raise DeviceError(msg)
if nl_msg['header']['type'] == RTM_NEWLINK:
self._nl_msg = nl_msg
elif nl_msg['header']['type'] == RTM_NEWADDR:
addr = ipaddress(nl_msg.get_attr('IFA_ADDRESS'),
flags=nl_msg.get_attr("IFA_FLAGS"))
addr.prefixlen = nl_msg["prefixlen"]
if addr not in self._ip_addrs:
self._ip_addrs.append(addr)
else:
old_idx = self._ip_addrs.index(addr)
addr_old = self._ip_addrs[old_idx]
if addr.flags != addr_old.flags:
self._ip_addrs.pop(old_idx)
self._ip_addrs.append(addr)
elif nl_msg['header']['type'] == RTM_DELADDR:
addr = ipaddress(nl_msg.get_attr('IFA_ADDRESS'))
addr.prefixlen = nl_msg["prefixlen"]
if addr in self._ip_addrs:
self._ip_addrs.remove(addr)
def __getattr__(self, name):
if name == "_inited":
return False
if not self._inited:
return super(RemoteDevice, self).__getattr__(name)
attr = getattr(self._dev_cls, name)
if self.deleted and not self._cached:
raise DeviceDeleted(
"This device was deleted on the slave and does not exist anymore."
)
if callable(attr):
if self._cached:
raise DeviceReadOnly(
"Can't call methods when in ReadOnly cache mode.")
def dev_method(*args, **kwargs):
return self._machine.remote_device_method(
self.ifindex, name, args, kwargs, self.netns)
return dev_method
else:
if self._cached:
return self._cache[name]
return self._machine.remote_device_getattr(self.ifindex, name,
self.netns)
def __setattr__(self, name, value):
try:
if getattr(self, "_deleted"):
raise DeviceDeleted("Device was deleted.")
except AttributeError:
pass
try:
if not getattr(self, "_enabled") and name[0] != "_":
raise DeviceDisabled(
"Can't set attributes for a disabled device.")
except AttributeError:
pass
return super(Device, self).__setattr__(name, value)
def _update_netlink(self, nl_msg):
if getattr(self, "_deleted"):
raise DeviceDeleted("Device was deleted.")
if self.ifindex != nl_msg['index']:
msg = "ifindex of netlink message (%s) doesn't match "\
"the device's (%s)." % (nl_msg['index'], self.ifindex)
raise DeviceError(msg)
if nl_msg['header']['type'] == RTM_NEWLINK:
self._nl_msg = nl_msg
elif nl_msg['header']['type'] == RTM_NEWADDR:
if nl_msg['family'] == AF_INET:
"""
from if_addr.h:
/*
* Important comment:
* IFA_ADDRESS is prefix address, rather than local interface address.
* It makes no difference for normally configured broadcast interfaces,
* but for point-to-point IFA_ADDRESS is DESTINATION address,
* local address is supplied in IFA_LOCAL attribute.
*/
"""
addr = ipaddress(nl_msg.get_attr('IFA_LOCAL'),
flags=nl_msg.get_attr("IFA_FLAGS"))
else:
addr = ipaddress(nl_msg.get_attr('IFA_ADDRESS'),
flags=nl_msg.get_attr("IFA_FLAGS"))
addr.prefixlen = nl_msg["prefixlen"]
if addr not in self._ip_addrs:
self._ip_addrs.append(addr)
else:
old_idx = self._ip_addrs.index(addr)
addr_old = self._ip_addrs[old_idx]
if addr.flags != addr_old.flags:
self._ip_addrs.pop(old_idx)
self._ip_addrs.append(addr)
elif nl_msg['header']['type'] == RTM_DELADDR:
addr = ipaddress(nl_msg.get_attr('IFA_ADDRESS'))
addr.prefixlen = nl_msg["prefixlen"]
if addr in self._ip_addrs:
self._ip_addrs.remove(addr)
def __getattribute__(self, name):
what = object.__getattribute__(self, name)
if object.__getattribute__(self, "_deleted"):
raise DeviceDeleted()
if not callable(what):
return what
else:
if (object.__getattribute__(self, "_enabled")
or name in ["enable", "disable"]):
return what
else:
def noop(*args, **kwargs):
pass
return noop
def __getattribute__(self, name):
what = super(Device, self).__getattribute__(name)
try:
if super(Device, self).__getattribute__("_deleted"):
raise DeviceDeleted("Device was deleted.")
except AttributeError:
pass
try:
if not callable(what):
return what
else:
if (super(Device, self).__getattribute__("_enabled")
or name[0] == "_"):
return what
elif not super(Device, self).__getattribute__("_enabled"):
raise DeviceDisabled(
"Can't call methods on a disabled device.")
except AttributeError:
return what