from pymin.services.util import Restorable, ConfigWriter, InitdHandler, \
TransactionalHandler, SubHandler, call, \
get_network_devices, ListComposedSubHandler, \
- DictComposedSubHandler
+ DictComposedSubHandler, Device, Address, ExecutionError
__ALL__ = ('IpHandler',)
# TODO: convertir HopHandler a ComposedSubHandler
-class HopError(Error):
+class HopError(HandlerError):
def __init__(self, hop):
self.message = u'Hop error : "%s"' % hop
_comp_subhandler_attr = 'routes'
_comp_subhandler_class = Route
-class Address(Sequence):
- def __init__(self, ip, netmask, broadcast=None):
- self.ip = ip
- self.netmask = netmask
- self.broadcast = broadcast
- def update(self, netmask=None, broadcast=None):
- if netmask is not None: self.netmask = netmask
- if broadcast is not None: self.broadcast = broadcast
- def as_tuple(self):
- return (self.ip, self.netmask, self.broadcast)
class AddressHandler(DictComposedSubHandler):
handler_help = u"Manage IP addresses"
_comp_subhandler_attr = 'addrs'
_comp_subhandler_class = Address
-class Device(Sequence):
- def __init__(self, name, mac):
- self.name = name
- self.mac = mac
- self.addrs = dict()
- self.routes = list()
- def as_tuple(self):
- return (self.name, self.mac)
class DeviceHandler(SubHandler):
_persistent_attrs = ('devices','hops')
_restorable_defaults = dict(
- devices=dict((dev, Device(dev, mac))
- for (dev, mac) in get_network_devices().items()),
+ devices=get_network_devices(),
hops = list()
)
self._config_writer_cfg_dir = config_dir
self._config_build_templates()
self._restore()
+ self._write_config()
self.addr = AddressHandler(self)
self.route = RouteHandler(self)
self.dev = DeviceHandler(self)
self.hop = HopHandler(self)
+ self.services = list()
def _write_config(self):
r"_write_config() -> None :: Execute all commands."
for device in self.devices.values():
- #call(self._render_config('route_flush', dict(dev=device.name)), shell=True)
- print self._render_config('route_flush', dict(dev=device.name))
- #call(self._render_config('ip_flush', dict(dev=device.name)), shell=True)
- print self._render_config('ip_flush', dict(dev=device.name))
- for address in device.addrs.values():
- print self._render_config('ip_add', dict(
- dev = device.name,
- addr = address.ip,
- netmask = address.netmask,
- broadcast = address.broadcast,
- ))
- #call(self._render_config('ip_add', dict(
- #dev = device.name,
- #addr = address.ip,
- #prefix = address.prefix,
- #broadcast = address.broadcast,
- #)
- #), shell=True)
- for route in device.routes:
- print self._render_config('route_add', dict(
+ if device.active:
+ self._write_config_for_device(device)
+ self._write_hops()
+
+ def _write_hops(self):
+ r"_write_hops() -> None :: Execute all hops."
+ if self.hops:
+ try:
+ call('ip route del default', shell=True)
+ except ExecutionError, e:
+ print e
+ try:
+ #get hops for active devices
+ active_hops = dict()
+ for h in self.hops:
+ if h.device in self.devices:
+ if self.devices[h.device].active
+ active_hops.append(h)
+ call(self._render_config('hop', dict(
+ hops = active_hops,
+ )
+ ), shell=True)
+ except ExecutionError, e:
+ print e
+
+ def _write_config_for_device(self, device):
+ r"_write_config_for_device(self, device) -> None :: Execute all commands for a device."
+ try:
+ call(self._render_config('route_flush', dict(dev=device.name)), shell=True)
+ except ExecutionError, e:
+ print e
+ try:
+ call(self._render_config('ip_flush', dict(dev=device.name)), shell=True)
+ except ExecutionError, e:
+ print e
+ for address in device.addrs.values():
+ broadcast = address.broadcast
+ if broadcast is None:
+ broadcast = '+'
+ try:
+ call(self._render_config('ip_add', dict(
+ dev = device.name,
+ addr = address.ip,
+ netmask = address.netmask,
+ peer = address.peer,
+ broadcast = broadcast,
+ )
+ ), shell=True)
+ except ExecutionError, e:
+ print e
+ for route in device.routes:
+ try:
+ call(self._render_config('route_add', dict(
dev = device.name,
net_addr = route.net_addr,
prefix = route.prefix,
gateway = route.gateway,
- ))
- #call(self._render_config('route_add', dict(
- #dev = device.name,
- #net_addr = route.net_addr,
- #prefix = route.prefix,
- #gateway = route.gateway,
- #)
- #), shell=True)
+ )
+ ), shell=True)
+ except ExecutionError, e:
+ print e
+
+ def handle_timer(self):
+ self.refresh_devices()
+
+
+ def refresh_devices(self):
+ devices = get_network_devices()
+ #add not registered and active devices
+ go_active = False
+ for k,v in devices.items():
+ if k not in self.devices:
+ self.devices[k] = v
+ else if not self.devices[k].active
+ self.active = True
+ go_active = True
+ self._write_config_for_device(self.devices[k])
+ if go_active:
+ self._write_hops()
+ for s in services:
+ if s._running:
+ try:
+ s.stop()
+ except ExecutionError:
+ pass
+ try:
+ s.start()
+ except ExecutionError:
+ pass
+
+ #mark inactive devices
+ for k in self.devices.keys():
+ if k not in devices:
+ self.devices[k].active = False
+
+ #hooks a service to the ip handler, so when
+ #a device is brought up one can restart the service
+ #that need to refresh their device list
+ def device_up_hook(self, serv):
+ if hasattr(serv, 'stop') and hasattr(serv, 'start')
+ services.append(serv)
+
+
- if self.hops:
- print 'ip route del default'
- #call('ip route del default', shell=True)
- print self._render_config('hop', dict(
- hops = self.hops,
- ))
- #call(self._render_config('hop', dict(
- #hops = self.hops,
- #)
- #), shell=True)
if __name__ == '__main__':
- ip = IpHandler()
+ ip = IpHanlder()
print '----------------------'
ip.hop.add('201.21.32.53','eth0')
ip.hop.add('205.65.65.25','eth1')
projects / software / pymin.git / blobdiff