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added net client to consolidate bridge and interface creation

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bharnden 2019-09-26 15:20:32 -07:00
parent bdf288ff1d
commit b449729a31
6 changed files with 113 additions and 64 deletions
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74
daemon/core/nodes/netclient.py Normal file
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"""
Clients for dealing with bridge and interface commands.
"""
import abc
import os
from core import constants, utils
class NetworkClient(object):
__metaclass__ = abc.ABCMeta
@abc.abstractmethod
def create_bridge(self, name):
return NotImplemented
class BrctlClient(object):
def create_bridge(self, name):
utils.check_cmd([constants.BRCTL_BIN, "addbr", name])
# disable spanning tree protocol and set forward delay to 0
utils.check_cmd([constants.BRCTL_BIN, "stp", name, "off"])
utils.check_cmd([constants.BRCTL_BIN, "setfd", name, "0"])
utils.check_cmd([constants.IP_BIN, "link", "set", name, "up"])
# turn off multicast snooping so forwarding occurs w/o IGMP joins
snoop = "/sys/devices/virtual/net/%s/bridge/multicast_snooping" % name
if os.path.exists(snoop):
with open(snoop, "w") as f:
f.write("0")
def delete_bridge(self, name):
utils.check_cmd([constants.IP_BIN, "link", "set", name, "down"])
utils.check_cmd([constants.BRCTL_BIN, "delbr", name])
def create_interface(self, bridge_name, interface_name):
utils.check_cmd([constants.BRCTL_BIN, "addif", bridge_name, interface_name])
utils.check_cmd([constants.IP_BIN, "link", "set", interface_name, "up"])
def delete_interface(self, bridge_name, interface_name):
utils.check_cmd([constants.BRCTL_BIN, "delif", bridge_name, interface_name])
def get_bridges(self):
return utils.check_cmd([constants.OVS_BIN, "list-br"])
def disable_mac_learning(self, name):
utils.check_cmd([constants.BRCTL_BIN, "setageing", name, "0"])
class OvsClient(object):
def create_bridge(self, name):
# turn off spanning tree protocol and forwarding delay
# TODO: verify stp and rstp are always off by default
# TODO: ovs only supports rstp forward delay and again it's off by default
utils.check_cmd([constants.OVS_BIN, "add-br", name])
utils.check_cmd([constants.IP_BIN, "link", "set", name, "up"])
def delete_bridge(self, name):
utils.check_cmd([constants.IP_BIN, "link", "set", name, "down"])
utils.check_cmd([constants.OVS_BIN, "del-br", name])
def create_interface(self, bridge_name, interface_name):
utils.check_cmd([constants.OVS_BIN, "add-port", bridge_name, interface_name])
utils.check_cmd([constants.IP_BIN, "link", "set", interface_name, "up"])
def delete_interface(self, bridge_name, interface_name):
utils.check_cmd([constants.OVS_BIN, "del-port", bridge_name, interface_name])
def get_bridges(self):
utils.check_cmd([constants.BRCTL_BIN, "show"])
def disable_mac_learning(self, name):
pass