X-Git-Url: https://git.llucax.com/software/pymin.git/blobdiff_plain/eefd474c44ed606a9b9afd64c31cc1fc30c8594a..09ea1d35ebdfec884409a2e567946464822a1cd3:/pymin/services/ip/__init__.py?ds=sidebyside diff --git a/pymin/services/ip/__init__.py b/pymin/services/ip/__init__.py index 881f695..b1d50b2 100644 --- a/pymin/services/ip/__init__.py +++ b/pymin/services/ip/__init__.py @@ -92,19 +92,51 @@ class Route(Sequence): 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 + @handler(u'Adds a route to : ip route add [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 [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" @@ -129,6 +161,20 @@ 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) @@ -136,6 +182,8 @@ class DeviceHandler(SubHandler): 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) @@ -151,11 +199,12 @@ class IpHandler(Restorable, ConfigWriter, TransactionalHandler): 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=get_network_devices(), - hops = list() + hops = list(), + no_device_routes = list(), ) _config_writer_files = ('device', 'ip_add', 'ip_del', 'ip_flush', @@ -173,25 +222,78 @@ class IpHandler(Restorable, ConfigWriter, TransactionalHandler): 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(): + 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, + ) + ), shell=True) + except ExecutionError, e: + print e + + 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) - for address in device.addrs.values(): - broadcast = address.broadcast - if broadcast is None: - broadcast = '+' + 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, + dev = device.name, + addr = address.ip, + netmask = address.netmask, + peer = address.peer, + broadcast = broadcast, ) ), shell=True) - for route in device.routes: + 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, @@ -199,14 +301,8 @@ class IpHandler(Restorable, ConfigWriter, TransactionalHandler): gateway = route.gateway, ) ), shell=True) - - if self.hops: - call('ip route del default', shell=True) - call(self._render_config('hop', dict( - hops = self.hops, - ) - ), shell=True) - + except ExecutionError, e: + print e def handle_timer(self): self.refresh_devices() @@ -214,14 +310,49 @@ class IpHandler(Restorable, ConfigWriter, TransactionalHandler): def refresh_devices(self): devices = get_network_devices() - #add not registered 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 - #delete dead devices + 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: - del self.devices[k] + 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) + +