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05ac52f075
Ticket: CM-10188, CM-10061 Reviewed By: dsa, nikhil, julien Testing Done: Tested static routes with vrf names for tables This patch does the following: - if a single vrf device is present in the config, builds the vrf map by reading vrf interfaces from the kernel (with existing link cache. Builds a shadow vrf only attribute cache) - reads existing table map and adjusts it if required - main change is the iproute2 map file on disk is updated immediately on vrf creation, so that static routes used along with the vrf slaves can use the vrf name for the table. This also helps dhclient dns hook script which may use mgmt table name directly. - cleans up default routes on down Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
93 lines
2.5 KiB
Python
93 lines
2.5 KiB
Python
#!/usr/bin/python
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#
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# Copyright 2014 Cumulus Networks, Inc. All rights reserved.
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# Author: Roopa Prabhu, roopa@cumulusnetworks.com
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#
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import pprint
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from collections import OrderedDict
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class linkCache():
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""" This class contains methods and instance variables to cache
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link info """
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_shared_state = {}
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""" { <ifacename> : { 'ifindex': <index>,
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'mtu': <mtu>,
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'state' : <state>',
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'flags' : <flags>,
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'kind' : <kind: bridge, bond, vlan>,
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'linkinfo' : {<attr1> : <attrval1>,
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<attr2> : <attrval2>,
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<ports> : {
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} """
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links = {}
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vrfs = {}
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@classmethod
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def get_attr(cls, mapList):
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return reduce(lambda d, k: d[k], mapList, linkCache.links)
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@classmethod
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def set_attr(cls, mapList, value):
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cls.get_attr(mapList[:-1])[mapList[-1]] = value
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@classmethod
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def del_attr(cls, mapList):
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try:
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del cls.get_attr(mapList[:-1])[mapList[-1]]
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except:
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pass
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@classmethod
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def update_attrdict(cls, mapList, valuedict):
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try:
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cls.get_attr(mapList[:-1])[mapList[-1]].update(valuedict)
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except:
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cls.get_attr(mapList[:-1])[mapList[-1]] = valuedict
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pass
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@classmethod
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def append_to_attrlist(cls, mapList, value):
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cls.get_attr(mapList[:-1])[mapList[-1]].append(value)
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@classmethod
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def remove_from_attrlist(cls, mapList, value):
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try:
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cls.get_attr(mapList[:-1])[mapList[-1]].remove(value)
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except:
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pass
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@classmethod
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def check_attr(cls, attrlist, value=None):
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try:
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cachedvalue = cls.get_attr(attrlist)
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if value:
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if cachedvalue == value:
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return True
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else:
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return False
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elif cachedvalue:
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return True
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else:
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return False
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except:
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return False
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@classmethod
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def invalidate(cls):
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cls.links = {}
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@classmethod
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def dump(cls):
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print 'Dumping link cache'
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pp = pprint.PrettyPrinter(indent=4)
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pp.pprint(cls.links)
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@classmethod
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def dump_link(cls, linkname):
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print 'Dumping link %s' %linkname
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pp = pprint.PrettyPrinter(indent=4)
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pp.pprint(cls.links.get(linkname))
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