From 48850bc1bc0a714fbabba8080ba2c26e56ce00cd Mon Sep 17 00:00:00 2001 From: or3st3s Date: Sat, 13 Oct 2007 17:04:31 +0000 Subject: [PATCH] Se agrega soporto para balanceo de carga. Se agrega en el comando hop que permite agregar distintos gateways para hacer balanceo de carga. --- pymin/services/ip/__init__.py | 154 ++++++++++++++++++---- pymin/services/ip/templates/hop | 5 + pymin/services/ppp/templates/chap-secrets | 3 + 3 files changed, 139 insertions(+), 23 deletions(-) create mode 100644 pymin/services/ip/templates/hop create mode 100644 pymin/services/ppp/templates/chap-secrets diff --git a/pymin/services/ip/__init__.py b/pymin/services/ip/__init__.py index db29c77..46966c6 100644 --- a/pymin/services/ip/__init__.py +++ b/pymin/services/ip/__init__.py @@ -63,6 +63,79 @@ class RouteAlreadyExistsError(RouteError): def __init__(self, route): self.message = u'Route already exists : "%s"' % route +class HopError(Error): + + def __init__(self, hop): + self.message = u'Hop error : "%s"' % hop + +class HopNotFoundError(HopError): + + def __init__(self, hop): + self.message = u'Hop not found : "%s"' % hop + +class HopAlreadyExistsError(HopError): + + def __init__(self, hop): + self.message = u'Hop already exists : "%s"' % hop + + +class Hop(Sequence): + + def __init__(self, gateway, device): + self.gateway = gateway + self.device = device + + def as_tuple(self): + return (self.gateway, self.device) + + def __cmp__(self, other): + if self.gateway == other.gateway \ + and self.device == other.device: + return 0 + return cmp(id(self), id(other)) + +class HopHandler(Handler): + + def __init__(self, parent): + self.parent = parent + + @handler('Adds a hop : add ') + def add(self, gw, dev): + if not dev in self.parent.devices: + raise DeviceNotFoundError(device) + h = Hop(gw, dev) + try: + self.parent.hops.index(h) + raise HopAlreadyExistsError(gw + '->' + dev) + except ValueError: + self.parent.hops.append(h) + + @handler(u'Deletes a hop : delete ') + def delete(self, gw, dev): + if not dev in self.parent.devices: + raise DeviceNotFoundError(device) + h = Hop(gw, dev) + try: + self.parent.hops.remove(h) + except ValueError: + raise HopNotFoundError(gw + '->' + dev) + + @handler(u'Lists hops : list ') + def list(self, device): + try: + k = self.parent.hops.keys() + except ValueError: + k = list() + return k + + @handler(u'Get information about all hops: show ') + def show(self, device): + try: + k = self.parent.hops.values() + except ValueError: + k = list() + return k + class Route(Sequence): @@ -125,7 +198,7 @@ class RouteHandler(Handler): return k @handler(u'Get information about all routes') - def show(self): + def show(self, device): try: k = self.parent.devices[device].routes.values() except ValueError: @@ -214,25 +287,27 @@ class DeviceHandler(Handler): @handler(u'Bring the device up') def up(self, name): - if name in self.devices: - call(self.device_template.render(dev=name, action='up'), shell=True) + if name in self.parent.devices: + #call(self.device_template.render(dev=name, action='up'), shell=True) + print self.device_template.render(dev=name, action='up') else: raise DeviceNotFoundError(name) @handler(u'Bring the device down') def down(self, name): - if name in self.devices: - call(self.device_template.render(dev=name, action='down'), shell=True) + if name in self.parent.devices: + #call(self.device_template.render(dev=name, action='down'), shell=True) + print self.device_template.render(dev=name, action='down') else: raise DeviceNotFoundError(name) @handler(u'List all devices') def list(self): - return self.devices.keys() + return self.parent.devices.keys() @handler(u'Get information about a device') def show(self): - return self.devices.items() + return self.parent.devices.items() def get_devices(): @@ -251,14 +326,21 @@ def get_devices(): class IpHandler(Restorable, ConfigWriter, TransactionalHandler): - handler_help = u"Manage IP devices, addresses and routes" + handler_help = u"Manage IP devices, addresses, routes and hops" + + _persistent_attrs = ('devices','hops') - _persistent_attrs = 'devices' + devs = dict(); + devs['eth0'] = Device('eth0','00:00:00:00') + devs['eth1'] = Device('eth1','00:00:00:00') - _restorable_defaults = dict(devices=get_devices()) + _restorable_defaults = dict( + devices=devs, + hops = list() + ) _config_writer_files = ('device', 'ip_add', 'ip_del', 'ip_flush', - 'route_add', 'route_del', 'route_flush') + 'route_add', 'route_del', 'route_flush', 'hop') _config_writer_tpl_dir = path.join(path.dirname(__file__), 'templates') def __init__(self, pickle_dir='.', config_dir='.'): @@ -270,34 +352,63 @@ class IpHandler(Restorable, ConfigWriter, TransactionalHandler): self.addr = AddressHandler(self) self.route = RouteHandler(self) self.dev = DeviceHandler(self) + self.hop = HopHandler(self) 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) - call(self._render_config('ip_flush', dict(dev=device.name)), shell=True) + #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(): - call(self._render_config('ip_add', dict( + print self._render_config('ip_add', dict( dev = device.name, addr = address.ip, prefix = address.prefix, broadcast = address.broadcast, - ) - ), shell=True) + )) + #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: - call(self._render_config('route_add', dict( + print self._render_config('route_add', dict( dev = device.name, net_addr = route.net_addr, prefix = route.prefix, gateway = route.gateway, - ) - ), shell=True) + )) + #call(self._render_config('route_add', dict( + #dev = device.name, + #net_addr = route.net_addr, + #prefix = route.prefix, + #gateway = route.gateway, + #) + #), shell=True) + + 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() print '----------------------' + ip.hop.add('201.21.32.53','eth0') + ip.hop.add('205.65.65.25','eth1') + ip.commit() ip.dev.up('eth0') ip.addr.add('eth0','192.168.0.23','24','192.168.255.255') ip.addr.add('eth0','192.168.0.26','24') @@ -305,11 +416,8 @@ if __name__ == '__main__': ip.route.add('eth0','192.168.0.0','24','192.168.0.1') ip.route.add('eth0','192.168.0.5','24','192.168.0.1') ip.commit() - ip.route.flush('eth0') + ip.hop.delete('201.21.32.53','eth0') ip.commit() - ip.addr.delete('eth0','192.168.0.23') - ip.commit() - diff --git a/pymin/services/ip/templates/hop b/pymin/services/ip/templates/hop new file mode 100644 index 0000000..2c086dc --- /dev/null +++ b/pymin/services/ip/templates/hop @@ -0,0 +1,5 @@ +ip route add default \ +% for hop in hops: +nexthop via ${hop.gateway} dev ${hop.device} weight 1 \ +% endfor +; diff --git a/pymin/services/ppp/templates/chap-secrets b/pymin/services/ppp/templates/chap-secrets new file mode 100644 index 0000000..7c4d3cb --- /dev/null +++ b/pymin/services/ppp/templates/chap-secrets @@ -0,0 +1,3 @@ +% for conn in conns.values(): +${conn.username} PPTP ${conn.password} +% endfor \ No newline at end of file -- 2.43.0