from pymin.services.util import Restorable, ConfigWriter, InitdHandler, \
TransactionalHandler, SubHandler, call, \
get_network_devices, ListComposedSubHandler, \
- DictComposedSubHandler
+ DictComposedSubHandler, Device, Address, ExecutionError
__ALL__ = ('IpHandler',)
self.net_addr = net_addr
self.prefix = prefix
self.gateway = gateway
+
def update(self, net_addr=None, prefix=None, gateway=None):
if net_addr is not None: self.net_addr = net_addr
if prefix is not None: self.prefix = prefix
if gateway is not None: self.gateway = gateway
+
def as_tuple(self):
return(self.net_addr, self.prefix, self.gateway)
+ def __cmp__(self, other):
+ if self.net_addr == other.net_addr \
+ and self.prefix == other.prefix \
+ and self.gateway == other.gateway:
+ return 0
+ return cmp(id(self), id(other))
+
class RouteHandler(ListComposedSubHandler):
handler_help = u"Manage IP routes"
_comp_subhandler_cont = 'devices'
_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)
+ @handler(u'Adds a route to : ip route add <net_addr> <prefix> <gateway> [device]')
+ def add(self, net_addr, prefix, gateway, dev=None):
+ if dev is not None:
+ ListComposedSubHandler.add(self, dev, net_addr, prefix, gateway)
+ else:
+ r = Route(net_addr, prefix, gateway)
+ if not r in self.parent.no_device_routes:
+ self.parent.no_device_routes.append(r)
+
+ @handler("Deletes a route : ip route delete <route_number_in_show> [dev]")
+ def delete(self, index, dev=None):
+ if dev is not None:
+ ListComposedSubHandler.delete(self, dev, index)
+ else:
+ i = int(index)
+ del self.parent.no_device_routes[i]
+
+ @handler("Shows routes : ip route show [dev]")
+ def show(self, dev=None):
+ if dev is not None:
+ return ListComposedSubHandler.show(self, dev)
+ else:
+ return self.parent.no_device_routes
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):
def up(self, name):
if name in self.parent.devices:
call(self.device_template.render(dev=name, action='up'), shell=True)
+ #bring up all the route asocitaed to the device
+ for route in self.parent.devices[name].routes:
+ try:
+ call(self.parent._render_config('route_add', dict(
+ dev = name,
+ net_addr = route.net_addr,
+ prefix = route.prefix,
+ gateway = route.gateway,
+ )
+ ), shell=True)
+ except ExecutionError, e:
+ print e
+ self.parent._bring_up_no_dev_routes()
+ self.parent._restart_services()
else:
raise DeviceNotFoundError(name)
def down(self, name):
if name in self.parent.devices:
call(self.device_template.render(dev=name, action='down'), shell=True)
+ self.parent._bring_up_no_dev_routes()
+ self.parent._restart_services()
else:
raise DeviceNotFoundError(name)
handler_help = u"Manage IP devices, addresses, routes and hops"
- _persistent_attrs = ('devices','hops')
+ _persistent_attrs = ('devices','hops','no_device_routes')
_restorable_defaults = dict(
- devices=dict((dev, Device(dev, mac))
- for (dev, mac) in get_network_devices().items()),
- hops = list()
+ devices=get_network_devices(),
+ hops = list(),
+ no_device_routes = list(),
)
_config_writer_files = ('device', 'ip_add', 'ip_del', 'ip_flush',
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.no_device_routes = list()
+ 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(
- dev = device.name,
+ if device.active:
+ self._write_config_for_device(device)
+ self._bring_up_no_dev_routes()
+ self._write_hops()
+
+ def _bring_up_no_dev_routes(self):
+ for route in self.no_device_routes:
+ try:
+ call(self._render_config('route_add', dict(
+ dev = None,
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 _write_hops(self):
+ r"_write_hops() -> None :: Execute all hops."
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)
+ 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,
+ )
+ ), 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
+ elif 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()
+ self._bring_up_no_dev_routes()
+ self._restart_services()
+
+ #mark inactive devices
+ for k in self.devices.keys():
+ go_down = False
+ if k not in devices:
+ self.devices[k].active = False
+ go_down = True
+ if go_down:
+ self._bring_up_no_dev_routes()
+
+ def _restart_services(self):
+ for s in self.services:
+ if s._service_running:
+ try:
+ s.stop()
+ except ExecutionError:
+ pass
+ try:
+ s.start()
+ except ExecutionError:
+ pass
+
+ #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'):
+ self.services.append(serv)
+
+
+
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