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https://github.com/CumulusNetworks/ifupdown2.git
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fa724923e1
Ticket: CM-13453 Reviewed By: Roopa, Nikhil G, Daniel W Testing Done: ifupdown2-tests We had an issue where python-nlmanager and ifupdown2's nlmanager differed When netd starts it loads ifupdown2's addons, so it also tries to do the imports. Since the current working directy is not /usr/share/ifupdown2 but netd directory it won't load ifupdown2's nlmanager first but python-nlmanager if it exists. Here we insert/hardcode /usr/share/ifupdown2/ first in the path to make sure we load the right nlmanager Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>
126 lines
5.7 KiB
Python
126 lines
5.7 KiB
Python
#!/usr/bin/python
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#
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# Copyright 2016 Cumulus Networks, Inc. All rights reserved.
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# Author: Julien Fortin, julien@cumulusnetworks.com
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#
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try:
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from ifupdownaddons.utilsbase import utilsBase
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import ifupdown.ifupdownflags as ifupdownflags
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except ImportError, e:
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raise ImportError(str(e) + "- required module not found")
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class Netlink(utilsBase):
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VXLAN_UDP_PORT = 4789
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def __init__(self, *args, **kargs):
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utilsBase.__init__(self, *args, **kargs)
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try:
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import sys
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sys.path.insert(0, '/usr/share/ifupdown2/')
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from nlmanager.nlmanager import NetlinkManager
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# this should force the use of the local nlmanager
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self._nlmanager_api = NetlinkManager(extra_debug=False)
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except Exception as e:
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self.logger.error('cannot initialize ifupdown2\'s '
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'netlink manager: %s' % str(e))
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raise
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def get_iface_index(self, ifacename):
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if ifupdownflags.flags.DRYRUN: return
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try:
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return self._nlmanager_api.get_iface_index(ifacename)
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except Exception as e:
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raise Exception('%s: netlink: %s: cannot get ifindex: %s'
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% (ifacename, ifacename, str(e)))
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def link_add_vlan(self, vlanrawdevice, ifacename, vlanid):
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self.logger.info('%s: netlink: ip link add link %s name %s type vlan id %s'
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% (ifacename, vlanrawdevice, ifacename, vlanid))
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if ifupdownflags.flags.DRYRUN: return
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ifindex = self.get_iface_index(vlanrawdevice)
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try:
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return self._nlmanager_api.link_add_vlan(ifindex, ifacename, vlanid)
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except Exception as e:
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raise Exception('netlink: %s: cannot create vlan %s: %s'
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% (vlanrawdevice, vlanid, str(e)))
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def link_add_macvlan(self, ifacename, macvlan_ifacename):
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self.logger.info('%s: netlink: ip link add link %s name %s type macvlan mode private'
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% (ifacename, ifacename, macvlan_ifacename))
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if ifupdownflags.flags.DRYRUN: return
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ifindex = self.get_iface_index(ifacename)
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try:
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return self._nlmanager_api.link_add_macvlan(ifindex, macvlan_ifacename)
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except Exception as e:
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raise Exception('netlink: %s: cannot create macvlan %s: %s'
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% (ifacename, macvlan_ifacename, str(e)))
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def link_set_updown(self, ifacename, state):
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self.logger.info('%s: netlink: ip link set dev %s %s'
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% (ifacename, ifacename, state))
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if ifupdownflags.flags.DRYRUN: return
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try:
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return self._nlmanager_api.link_set_updown(ifacename, state)
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except Exception as e:
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raise Exception('netlink: cannot set link %s %s: %s'
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% (ifacename, state, str(e)))
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def link_set_protodown(self, ifacename, state):
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self.logger.info('%s: netlink: set link %s protodown %s'
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% (ifacename, ifacename, state))
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if ifupdownflags.flags.DRYRUN: return
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try:
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return self._nlmanager_api.link_set_protodown(ifacename, state)
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except Exception as e:
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raise Exception('netlink: cannot set link %s protodown %s: %s'
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% (ifacename, state, str(e)))
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def link_add_bridge_vlan(self, ifacename, vlanid):
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self.logger.info('%s: netlink: bridge vlan add vid %s dev %s'
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% (ifacename, vlanid, ifacename))
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if ifupdownflags.flags.DRYRUN: return
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ifindex = self.get_iface_index(ifacename)
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try:
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return self._nlmanager_api.link_add_bridge_vlan(ifindex, vlanid)
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except Exception as e:
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raise Exception('netlink: %s: cannot create bridge vlan %s: %s'
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% (ifacename, vlanid, str(e)))
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def link_del_bridge_vlan(self, ifacename, vlanid):
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self.logger.info('%s: netlink: bridge vlan del vid %s dev %s'
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% (ifacename, vlanid, ifacename))
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if ifupdownflags.flags.DRYRUN: return
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ifindex = self.get_iface_index(ifacename)
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try:
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return self._nlmanager_api.link_del_bridge_vlan(ifindex, vlanid)
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except Exception as e:
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raise Exception('netlink: %s: cannot remove bridge vlan %s: %s'
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% (ifacename, vlanid, str(e)))
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def link_add_vxlan(self, ifacename, vxlanid, local=None, dstport=VXLAN_UDP_PORT,
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group=None, learning='on', ageing=None):
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cmd = 'ip link add %s type vxlan id %s dstport %s' % (ifacename,
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vxlanid,
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dstport)
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cmd += ' local %s' % local if local else ''
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cmd += ' ageing %s' % ageing if ageing else ''
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cmd += ' remote %s' % group if group else ' noremote'
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cmd += ' nolearning' if learning == 'off' else ''
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self.logger.info('%s: netlink: %s' % (ifacename, cmd))
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if ifupdownflags.flags.DRYRUN: return
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try:
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return self._nlmanager_api.link_add_vxlan(ifacename,
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vxlanid,
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dstport=dstport,
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local=local,
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group=group,
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learning=learning,
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ageing=ageing)
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except Exception as e:
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raise Exception('netlink: %s: cannot create vxlan %s: %s'
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% (ifacename, vxlanid, str(e)))
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netlink = Netlink()
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