75 lines
2.7 KiB
Python
75 lines
2.7 KiB
Python
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"""
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Clients for dealing with bridge and interface commands.
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"""
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import abc
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import os
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from core import constants, utils
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class NetworkClient(object):
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__metaclass__ = abc.ABCMeta
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@abc.abstractmethod
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def create_bridge(self, name):
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return NotImplemented
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class BrctlClient(object):
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def create_bridge(self, name):
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utils.check_cmd([constants.BRCTL_BIN, "addbr", name])
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# disable spanning tree protocol and set forward delay to 0
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utils.check_cmd([constants.BRCTL_BIN, "stp", name, "off"])
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utils.check_cmd([constants.BRCTL_BIN, "setfd", name, "0"])
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utils.check_cmd([constants.IP_BIN, "link", "set", name, "up"])
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# turn off multicast snooping so forwarding occurs w/o IGMP joins
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snoop = "/sys/devices/virtual/net/%s/bridge/multicast_snooping" % name
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if os.path.exists(snoop):
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with open(snoop, "w") as f:
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f.write("0")
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def delete_bridge(self, name):
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utils.check_cmd([constants.IP_BIN, "link", "set", name, "down"])
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utils.check_cmd([constants.BRCTL_BIN, "delbr", name])
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def create_interface(self, bridge_name, interface_name):
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utils.check_cmd([constants.BRCTL_BIN, "addif", bridge_name, interface_name])
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utils.check_cmd([constants.IP_BIN, "link", "set", interface_name, "up"])
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def delete_interface(self, bridge_name, interface_name):
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utils.check_cmd([constants.BRCTL_BIN, "delif", bridge_name, interface_name])
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def get_bridges(self):
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return utils.check_cmd([constants.OVS_BIN, "list-br"])
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def disable_mac_learning(self, name):
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utils.check_cmd([constants.BRCTL_BIN, "setageing", name, "0"])
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class OvsClient(object):
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def create_bridge(self, name):
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# turn off spanning tree protocol and forwarding delay
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# TODO: verify stp and rstp are always off by default
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# TODO: ovs only supports rstp forward delay and again it's off by default
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utils.check_cmd([constants.OVS_BIN, "add-br", name])
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utils.check_cmd([constants.IP_BIN, "link", "set", name, "up"])
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def delete_bridge(self, name):
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utils.check_cmd([constants.IP_BIN, "link", "set", name, "down"])
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utils.check_cmd([constants.OVS_BIN, "del-br", name])
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def create_interface(self, bridge_name, interface_name):
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utils.check_cmd([constants.OVS_BIN, "add-port", bridge_name, interface_name])
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utils.check_cmd([constants.IP_BIN, "link", "set", interface_name, "up"])
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def delete_interface(self, bridge_name, interface_name):
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utils.check_cmd([constants.OVS_BIN, "del-port", bridge_name, interface_name])
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def get_bridges(self):
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utils.check_cmd([constants.BRCTL_BIN, "show"])
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def disable_mac_learning(self, name):
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pass
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