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				https://github.com/CumulusNetworks/ifupdown2.git
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	Ticket: CM-11393 Reviewed By: dsa, julien, nikhil Testing Done: tested up and down of a vrf interface $ifdown -v blue ..snip .. info: executing /usr/lib/vrf/vrf-helper delete blue 1030 info: executing ip link del blue info: executing /bin/ss -aK "dev == 54" info: vrf: syncing table map to /etc/iproute2/rt_tables.d/ifupdown2_vrf_map.conf Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
		
			
				
	
	
		
			927 lines
		
	
	
		
			34 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			927 lines
		
	
	
		
			34 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 os
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import glob
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import shlex
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import signal
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import subprocess
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from ifupdown.utils import utils
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from collections import OrderedDict
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from utilsbase import *
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from systemutils import *
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from cache import *
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import ifupdown.ifupdownflags as ifupdownflags
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VXLAN_UDP_PORT = 4789
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class iproute2(utilsBase):
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    """ This class contains helper methods to cache and interact with the
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    commands in the iproute2 package """
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    _cache_fill_done = False
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    ipbatchbuf = ''
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    ipbatch = False
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    ipbatch_pause = False
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    def __init__(self, *args, **kargs):
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        utilsBase.__init__(self, *args, **kargs)
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        if ifupdownflags.flags.CACHE:
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            self._fill_cache()
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    def _fill_cache(self):
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        if not iproute2._cache_fill_done:
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            self._link_fill()
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            self._addr_fill()
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            iproute2._cache_fill_done = True
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            return True
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        return False
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    def _get_vland_id(self, citems, i, warn):
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        try:
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            sub = citems[i:]
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            index = sub.index('id')
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            int(sub[index + 1])
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            return sub[index + 1]
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        except:
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            if warn:
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                raise Exception('invalid use of \'vlan\' keyword')
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            return None
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    def _link_fill(self, ifacename=None, refresh=False):
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        """ fills cache with link information
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        if ifacename argument given, fill cache for ifacename, else
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        fill cache for all interfaces in the system
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        """
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        warn = True
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        linkout = {}
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        vxrd_running = False
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        if iproute2._cache_fill_done and not refresh: return
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        try:
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            # if ifacename already present, return
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            if (ifacename and not refresh and
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                    linkCache.get_attr([ifacename, 'ifflag'])):
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                return
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        except:
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            pass
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        cmdout = self.link_show(ifacename=ifacename)
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        if not cmdout:
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            return
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        # read vxrd.pid and cache the running state before going through
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        # every interface in the system
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        if systemUtils.is_service_running(None, '/var/run/vxrd.pid'):
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            vxrd_running = True
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        for c in cmdout.splitlines():
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            citems = c.split()
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            ifnamenlink = citems[1].split('@')
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            if len(ifnamenlink) > 1:
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                ifname = ifnamenlink[0]
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                iflink = ifnamenlink[1].strip(':')
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            else:
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                ifname = ifnamenlink[0].strip(':')
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                iflink = None
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            linkattrs = {}
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            linkattrs['link'] = iflink
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            linkattrs['ifindex'] = citems[0].strip(':')
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            flags = citems[2].strip('<>').split(',')
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            linkattrs['flags'] = flags
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            linkattrs['ifflag'] = 'UP' if 'UP' in flags else 'DOWN'
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            for i in range(0, len(citems)):
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                try:
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                    if citems[i] == 'mtu':
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                        linkattrs['mtu'] = citems[i + 1]
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                    elif citems[i] == 'state':
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                        linkattrs['state'] = citems[i + 1]
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                    elif citems[i] == 'link/ether':
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                        linkattrs['hwaddress'] = citems[i + 1]
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                    elif citems[i] == 'vlan':
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                        vlanid = self._get_vland_id(citems, i, warn)
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                        if vlanid:
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                            linkattrs['linkinfo'] = {'vlanid': vlanid}
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                            linkattrs['kind'] = 'vlan'
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                    elif citems[i] == 'dummy':
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                        linkattrs['kind'] = 'dummy'
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                    elif citems[i] == 'vxlan' and citems[i + 1] == 'id':
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                        linkattrs['kind'] = 'vxlan'
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                        vattrs = {'vxlanid': citems[i + 2],
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                                  'svcnode': None,
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                                  'remote': [],
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                                  'ageing': citems[i + 2],
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                                  'learning': 'on'}
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                        for j in range(i + 2, len(citems)):
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                            if citems[j] == 'local':
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                                vattrs['local'] = citems[j + 1]
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                            elif citems[j] == 'remote':
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                                vattrs['svcnode'] = citems[j + 1]
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                            elif citems[j] == 'ageing':
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                                vattrs['ageing'] = citems[j + 1]
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                            elif citems[j] == 'nolearning':
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                                vattrs['learning'] = 'off'
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                        # get vxlan peer nodes if provisioned by user and not by vxrd
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                        if not vxrd_running:
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                            peers = self.get_vxlan_peers(ifname, vattrs['svcnode'])
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                            if peers:
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                                vattrs['remote'] = peers
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                        linkattrs['linkinfo'] = vattrs
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                        break
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                    elif citems[i] == 'vrf' and citems[i + 1] == 'table':
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                        vattrs = {'table': citems[i + 2]}
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                        linkattrs['linkinfo'] = vattrs
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                        linkattrs['kind'] = 'vrf'
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                        linkCache.vrfs[ifname] = vattrs
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                        break
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                    elif citems[i] == 'vrf_slave':
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                        linkattrs['kind'] = 'vrf_slave'
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                        break
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                    elif citems[i] == 'macvlan' and citems[i + 1] == 'mode':
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                        linkattrs['kind'] = 'macvlan'
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                except Exception as e:
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                    if warn:
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                        self.logger.debug('%s: parsing error: id, mtu, state, link/ether, vlan, dummy, vxlan, local, remote, ageing, nolearning, vrf, table, vrf_slave are reserved keywords: %s' % (ifname, str(e)))
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                        warn = False
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            #linkattrs['alias'] = self.read_file_oneline(
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            #            '/sys/class/net/%s/ifalias' %ifname)
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            linkout[ifname] = linkattrs
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        [linkCache.update_attrdict([ifname], linkattrs)
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                    for ifname, linkattrs in linkout.items()]
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    def _addr_filter(self, ifname, addr, scope=None):
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        default_addrs = ['127.0.0.1/8', '::1/128' , '0.0.0.0']
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        if ifname == 'lo' and addr in default_addrs:
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            return True
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        if scope and scope == 'link':
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            return True
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        return False
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    def _addr_fill(self, ifacename=None, refresh=False):
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        """ fills cache with address information
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        if ifacename argument given, fill cache for ifacename, else
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        fill cache for all interfaces in the system
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        """
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        linkout = {}
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        if iproute2._cache_fill_done and not refresh: return
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        try:
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            # Check if ifacename is already full, in which case, return
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            if ifacename and not refresh:
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                linkCache.get_attr([ifacename, 'addrs'])
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                return
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        except:
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            pass
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        cmdout = self.addr_show(ifacename=ifacename)
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        if not cmdout:
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            return
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        for c in cmdout.splitlines():
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            citems = c.split()
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            ifnamenlink = citems[1].split('@')
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            if len(ifnamenlink) > 1:
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                ifname = ifnamenlink[0]
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            else:
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                ifname = ifnamenlink[0].strip(':')
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            if not linkout.get(ifname):
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                linkattrs = {}
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                linkattrs['addrs'] = OrderedDict({})
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                try:
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                    linkout[ifname].update(linkattrs)
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                except KeyError:
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                    linkout[ifname] = linkattrs
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            if citems[2] == 'inet':
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                if self._addr_filter(ifname, citems[3], scope=citems[5]):
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                    continue
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                addrattrs = {}
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                addrattrs['scope'] = citems[5]
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                addrattrs['type'] = 'inet'
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                linkout[ifname]['addrs'][citems[3]] = addrattrs
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            elif citems[2] == 'inet6':
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                if self._addr_filter(ifname, citems[3], scope=citems[5]):
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                    continue
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                if citems[5] == 'link': continue #skip 'link' addresses
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                addrattrs = {}
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                addrattrs['scope'] = citems[5]
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                addrattrs['type'] = 'inet6'
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                linkout[ifname]['addrs'][citems[3]] = addrattrs
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        [linkCache.update_attrdict([ifname], linkattrs)
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                    for ifname, linkattrs in linkout.items()]
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    def _cache_get(self, type, attrlist, refresh=False):
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        try:
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            if ifupdownflags.flags.DRYRUN:
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                return False
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            if ifupdownflags.flags.CACHE:
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                if self._fill_cache():
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                    # if we filled the cache, return new data
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                    return linkCache.get_attr(attrlist)
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                if not refresh:
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                    return linkCache.get_attr(attrlist)
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            if type == 'link':
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                self._link_fill(attrlist[0], refresh)
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            elif type == 'addr':
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                self._addr_fill(attrlist[0], refresh)
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            else:
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                self._link_fill(attrlist[0], refresh)
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                self._addr_fill(attrlist[0], refresh)
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            return linkCache.get_attr(attrlist)
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        except Exception, e:
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            self.logger.debug('_cache_get(%s) : [%s]'
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                    %(str(attrlist), str(e)))
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            pass
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        return None
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    def _cache_check(self, type, attrlist, value, refresh=False):
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        try:
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            attrvalue = self._cache_get(type, attrlist, refresh)
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            if attrvalue and attrvalue == value:
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                return True
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        except Exception, e:
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            self.logger.debug('_cache_check(%s) : [%s]'
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                    %(str(attrlist), str(e)))
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            pass
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        return False
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    def _cache_update(self, attrlist, value):
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        if ifupdownflags.flags.DRYRUN: return
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        try:
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            linkCache.add_attr(attrlist, value)
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        except:
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            pass
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    def _cache_delete(self, attrlist):
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        if ifupdownflags.flags.DRYRUN: return
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        try:
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            linkCache.del_attr(attrlist)
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        except:
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            pass
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    def _cache_invalidate(self):
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        linkCache.invalidate()
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        iproute2._cache_fill_done = False
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    def batch_start(self):
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        self.ipbatcbuf = ''
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        self.ipbatch = True
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        self.ipbatch_pause = False
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    def add_to_batch(self, cmd):
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        self.ipbatchbuf += cmd + '\n'
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    def batch_pause(self):
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        self.ipbatch_pause = True
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    def batch_resume(self):
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        self.ipbatch_pause = False
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    def batch_commit(self):
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        if not self.ipbatchbuf:
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            self.ipbatchbuf = ''
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            self.ipbatch = False
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            self.ipbatch_pause = False
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            return
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        try:
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            utils.exec_command('ip -force -batch -', stdin=self.ipbatchbuf)
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        except:
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            raise
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        finally:
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            self.ipbatchbuf = ''
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            self.ipbatch = False
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            self.ipbatch_pause = False
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    def bridge_batch_commit(self):
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        if not self.ipbatchbuf:
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            self.ipbatchbuf = ''
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            self.ipbatch = False
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            self.ipbatch_pause = False
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            return
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        try:
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            utils.exec_command('bridge -force -batch -', stdin=self.ipbatchbuf)
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        except:
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            raise
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        finally:
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            self.ipbatchbuf = ''
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            self.ipbatch = False
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            self.ipbatch_pause = False
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    def addr_show(self, ifacename=None):
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        if ifacename:
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            if not self.link_exists(ifacename):
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                return
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            return utils.exec_commandl(['ip', '-o', 'addr', 'show', 'dev',
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                                        ifacename])
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        else:
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            return utils.exec_commandl(['ip', '-o', 'addr', 'show'])
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    def link_show(self, ifacename=None):
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						|
        if ifacename:
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            return utils.exec_commandl(['ip', '-o', '-d', 'link', 'show', 'dev',
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                                        ifacename])
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						|
        else:
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            return utils.exec_commandl(['ip', '-o', '-d', 'link', 'show'])
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    def addr_add(self, ifacename, address, broadcast=None,
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                    peer=None, scope=None, preferred_lifetime=None):
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						|
        if not address:
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            return
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        cmd = 'addr add %s' %address
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						|
        if broadcast:
 | 
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            cmd += ' broadcast %s' %broadcast
 | 
						|
        if peer:
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						|
            cmd += ' peer %s' %peer
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						|
        if scope:
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						|
            cmd += ' scope %s' %scope
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						|
        if preferred_lifetime:
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						|
            cmd += ' preferred_lft %s' %preferred_lifetime
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						|
        cmd += ' dev %s' %ifacename
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						|
        if self.ipbatch and not self.ipbatch_pause:
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						|
            self.add_to_batch(cmd)
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						|
        else:
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						|
            utils.exec_command('ip %s' % cmd)
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						|
        self._cache_update([ifacename, 'addrs', address], {})
 | 
						|
 | 
						|
    def addr_del(self, ifacename, address, broadcast=None,
 | 
						|
                    peer=None, scope=None):
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						|
        """ Delete ipv4 address """
 | 
						|
        if not address:
 | 
						|
            return
 | 
						|
        if not self._cache_get('addr', [ifacename, 'addrs', address]):
 | 
						|
            return
 | 
						|
        cmd = 'addr del %s' %address
 | 
						|
        if broadcast:
 | 
						|
            cmd += 'broadcast %s' %broadcast
 | 
						|
        if peer:
 | 
						|
            cmd += 'peer %s' %peer
 | 
						|
        if scope:
 | 
						|
            cmd += 'scope %s' %scope
 | 
						|
        cmd += ' dev %s' %ifacename
 | 
						|
        utils.exec_command('ip %s' % cmd)
 | 
						|
        self._cache_delete([ifacename, 'addrs', address])
 | 
						|
 | 
						|
    def addr_flush(self, ifacename):
 | 
						|
        cmd = 'addr flush dev %s' %ifacename
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            self.add_to_batch(cmd)
 | 
						|
        else:
 | 
						|
            utils.exec_command('ip %s' % cmd)
 | 
						|
        self._cache_delete([ifacename, 'addrs'])
 | 
						|
 | 
						|
    def del_addr_all(self, ifacename, skip_addrs=[]):
 | 
						|
        if not skip_addrs: skip_addrs = []
 | 
						|
        runningaddrsdict = self.addr_get(ifacename)
 | 
						|
        try:
 | 
						|
            # XXX: ignore errors. Fix this to delete secondary addresses
 | 
						|
            # first
 | 
						|
            [self.addr_del(ifacename, a) for a in
 | 
						|
                set(runningaddrsdict.keys()).difference(skip_addrs)]
 | 
						|
        except:
 | 
						|
            # ignore errors
 | 
						|
            pass
 | 
						|
 | 
						|
    def addr_get(self, ifacename, details=True, refresh=False):
 | 
						|
        addrs = self._cache_get('addr', [ifacename, 'addrs'],
 | 
						|
                                refresh=refresh)
 | 
						|
        if not addrs:
 | 
						|
            return None
 | 
						|
        if details:
 | 
						|
            return addrs
 | 
						|
        return addrs.keys()
 | 
						|
 | 
						|
    def addr_add_multiple(self, ifacename, addrs, purge_existing=False):
 | 
						|
        # purges address
 | 
						|
        if purge_existing:
 | 
						|
            # if perfmode is not set and also if iface has no sibling
 | 
						|
            # objects, purge addresses that are not present in the new
 | 
						|
            # config
 | 
						|
            runningaddrs = self.addr_get(ifacename, details=False)
 | 
						|
            if addrs == runningaddrs:
 | 
						|
                return
 | 
						|
            try:
 | 
						|
                # if primary address is not same, there is no need to keep any.
 | 
						|
                # reset all addresses
 | 
						|
                if (addrs and runningaddrs and
 | 
						|
                        (addrs[0] != runningaddrs[0])):
 | 
						|
                    self.del_addr_all(ifacename)
 | 
						|
                else:
 | 
						|
                    self.del_addr_all(ifacename, addrs)
 | 
						|
            except Exception, e:
 | 
						|
                self.log_warn(str(e))
 | 
						|
        for a in addrs:
 | 
						|
            try:
 | 
						|
                self.addr_add(ifacename, a)
 | 
						|
            except Exception, e:
 | 
						|
                self.logger.error(str(e))
 | 
						|
 | 
						|
    def _link_set_ifflag(self, ifacename, value):
 | 
						|
        # Dont look at the cache, the cache may have stale value
 | 
						|
        # because link status can be changed by external
 | 
						|
        # entity (One such entity is ifupdown main program)
 | 
						|
        cmd = 'link set dev %s %s' %(ifacename, value.lower())
 | 
						|
        if self.ipbatch:
 | 
						|
            self.add_to_batch(cmd)
 | 
						|
        else:
 | 
						|
            utils.exec_command('ip %s' % cmd)
 | 
						|
 | 
						|
    def link_up(self, ifacename):
 | 
						|
        self._link_set_ifflag(ifacename, 'UP')
 | 
						|
 | 
						|
    def link_down(self, ifacename):
 | 
						|
        self._link_set_ifflag(ifacename, 'DOWN')
 | 
						|
 | 
						|
    def link_set(self, ifacename, key, value=None, force=False, type=None):
 | 
						|
        if not force:
 | 
						|
            if (key not in ['master', 'nomaster'] and
 | 
						|
                self._cache_check('link', [ifacename, key], value)):
 | 
						|
                return
 | 
						|
        cmd = 'link set dev %s' %ifacename
 | 
						|
        if type:
 | 
						|
            cmd += ' type %s' %type
 | 
						|
        cmd += ' %s' %key
 | 
						|
        if value:
 | 
						|
            cmd += ' %s' %value
 | 
						|
        if self.ipbatch:
 | 
						|
            self.add_to_batch(cmd)
 | 
						|
        else:
 | 
						|
            utils.exec_command('ip %s' % cmd)
 | 
						|
        if key not in ['master', 'nomaster']:
 | 
						|
            self._cache_update([ifacename, key], value)
 | 
						|
 | 
						|
    def link_set_hwaddress(self, ifacename, hwaddress, force=False):
 | 
						|
        if not force:
 | 
						|
            if self._cache_check('link', [ifacename, 'hwaddress'], hwaddress):
 | 
						|
               return
 | 
						|
        self.link_down(ifacename)
 | 
						|
        cmd = 'link set dev %s address %s' %(ifacename, hwaddress)
 | 
						|
        if self.ipbatch:
 | 
						|
            self.add_to_batch(cmd)
 | 
						|
        else:
 | 
						|
            utils.exec_command('ip %s' % cmd)
 | 
						|
        self.link_up(ifacename)
 | 
						|
        self._cache_update([ifacename, 'hwaddress'], hwaddress)
 | 
						|
 | 
						|
    def link_set_mtu(self, ifacename, mtu):
 | 
						|
        if ifupdownflags.flags.DRYRUN:
 | 
						|
            return True
 | 
						|
        if not mtu or not ifacename: return
 | 
						|
        with open('/sys/class/net/%s/mtu' % ifacename, 'w') as f:
 | 
						|
            f.write(mtu)
 | 
						|
        self._cache_update([ifacename, 'mtu'], mtu)
 | 
						|
 | 
						|
    def link_set_alias(self, ifacename, alias):
 | 
						|
        utils.exec_commandl(['ip', 'link', 'set', 'dev', ifacename,
 | 
						|
                             'alias', alias])
 | 
						|
 | 
						|
    def link_get_alias(self, ifacename):
 | 
						|
        return self.read_file_oneline('/sys/class/net/%s/ifalias'
 | 
						|
                    %ifacename)
 | 
						|
 | 
						|
    def link_isloopback(self, ifacename):
 | 
						|
        flags = self._cache_get('link', [ifacename, 'flags'])
 | 
						|
        if not flags:
 | 
						|
            return
 | 
						|
        if 'LOOPBACK' in flags:
 | 
						|
            return True
 | 
						|
        return False
 | 
						|
 | 
						|
    def link_get_status(self, ifacename):
 | 
						|
        return self._cache_get('link', [ifacename, 'ifflag'], refresh=True)
 | 
						|
 | 
						|
    def route_add_gateway(self, ifacename, gateway, vrf=None, metric=None):
 | 
						|
        if not gateway:
 | 
						|
           return
 | 
						|
        if not vrf:
 | 
						|
            cmd = 'ip route add default via %s' %gateway
 | 
						|
        else:
 | 
						|
            cmd = 'ip route add table %s default via %s' %(vrf, gateway)
 | 
						|
        # Add metric
 | 
						|
        if metric:
 | 
						|
            cmd += 'metric %s' %metric
 | 
						|
        cmd += ' dev %s' %ifacename
 | 
						|
        utils.exec_command(cmd)
 | 
						|
 | 
						|
    def route_del_gateway(self, ifacename, gateway, vrf=None, metric=None):
 | 
						|
        # delete default gw
 | 
						|
        if not gateway:
 | 
						|
            return
 | 
						|
        if not vrf:
 | 
						|
            cmd = 'ip route del default via %s' %gateway
 | 
						|
        else:
 | 
						|
            cmd = 'ip route del table %s default via %s' %(vrf, gateway)
 | 
						|
        if metric:
 | 
						|
            cmd += ' metric %s' %metric
 | 
						|
        cmd += ' dev %s' %ifacename
 | 
						|
        utils.exec_command(cmd)
 | 
						|
 | 
						|
    def route6_add_gateway(self, ifacename, gateway):
 | 
						|
        if not gateway:
 | 
						|
            return
 | 
						|
        return utils.exec_command('ip -6 route add default via %s dev %s' %
 | 
						|
                                  (gateway, ifacename))
 | 
						|
 | 
						|
    def route6_del_gateway(self, ifacename, gateway):
 | 
						|
        if not gateway:
 | 
						|
            return
 | 
						|
        return utils.exec_command('ip -6 route del default via %s dev %s' %
 | 
						|
                                  (gateway, ifacename))
 | 
						|
 | 
						|
    def link_create_vlan(self, vlan_device_name, vlan_raw_device, vlanid):
 | 
						|
        if self.link_exists(vlan_device_name):
 | 
						|
            return
 | 
						|
        utils.exec_command('ip link add link %s name %s type vlan id %d' %
 | 
						|
                           (vlan_raw_device, vlan_device_name, vlanid))
 | 
						|
        self._cache_update([vlan_device_name], {})
 | 
						|
 | 
						|
    def link_create_vlan_from_name(self, vlan_device_name):
 | 
						|
        v = vlan_device_name.split('.')
 | 
						|
        if len(v) != 2:
 | 
						|
            self.logger.warn('invalid vlan device name %s' %vlan_device_name)
 | 
						|
            return
 | 
						|
        self.link_create_vlan(vlan_device_name, v[0], v[1])
 | 
						|
 | 
						|
    def link_create_macvlan(self, name, linkdev, mode='private'):
 | 
						|
        if self.link_exists(name):
 | 
						|
            return
 | 
						|
        cmd = ('link add link %s' %linkdev +
 | 
						|
                          ' name %s' %name +
 | 
						|
                          ' type macvlan mode %s' %mode)
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            self.add_to_batch(cmd)
 | 
						|
        else:
 | 
						|
            utils.exec_command('ip %s' % cmd)
 | 
						|
        self._cache_update([name], {})
 | 
						|
 | 
						|
    def get_vxlan_peers(self, dev, svcnodeip):
 | 
						|
        cmd = 'bridge fdb show brport %s' % dev
 | 
						|
        cur_peers = []
 | 
						|
        try:
 | 
						|
            ps = subprocess.Popen(shlex.split(cmd), stdout=subprocess.PIPE, close_fds=False)
 | 
						|
            utils.enable_subprocess_signal_forwarding(ps, signal.SIGINT)
 | 
						|
            output = subprocess.check_output(('grep', '00:00:00:00:00:00'), stdin=ps.stdout)
 | 
						|
            ps.wait()
 | 
						|
            utils.disable_subprocess_signal_forwarding(signal.SIGINT)
 | 
						|
            try:
 | 
						|
                ppat = re.compile('\s+dst\s+(\d+.\d+.\d+.\d+)\s+')
 | 
						|
                for l in output.split('\n'):
 | 
						|
                    m = ppat.search(l)
 | 
						|
                    if m and m.group(1) != svcnodeip:
 | 
						|
                        cur_peers.append(m.group(1))
 | 
						|
            except:
 | 
						|
                self.logger.warn('error parsing ip link output')
 | 
						|
                pass
 | 
						|
        except subprocess.CalledProcessError as e:
 | 
						|
            if e.returncode != 1:
 | 
						|
                self.logger.error(str(e))
 | 
						|
        finally:
 | 
						|
            utils.disable_subprocess_signal_forwarding(signal.SIGINT)
 | 
						|
 | 
						|
        return cur_peers
 | 
						|
 | 
						|
    def link_create_vxlan(self, name, vxlanid,
 | 
						|
                          localtunnelip=None,
 | 
						|
                          svcnodeip=None,
 | 
						|
                          remoteips=None,
 | 
						|
                          learning='on',
 | 
						|
                          ageing=None,
 | 
						|
                          anycastip=None):
 | 
						|
        if svcnodeip and remoteips:
 | 
						|
            raise Exception("svcnodeip and remoteip is mutually exclusive")
 | 
						|
        args = ''
 | 
						|
        if svcnodeip:
 | 
						|
            args += ' remote %s' %svcnodeip
 | 
						|
        if ageing:
 | 
						|
            args += ' ageing %s' %ageing
 | 
						|
        if learning == 'off':
 | 
						|
            args += ' nolearning'
 | 
						|
 | 
						|
        if self.link_exists(name):
 | 
						|
            cmd = 'link set dev %s type vxlan dstport %d' %(name, VXLAN_UDP_PORT)
 | 
						|
            vxlanattrs = self.get_vxlandev_attrs(name)
 | 
						|
            # on ifreload do not overwrite anycast_ip to individual ip if clagd
 | 
						|
            # has modified
 | 
						|
            if vxlanattrs:
 | 
						|
                running_localtunnelip = vxlanattrs.get('local')
 | 
						|
                if anycastip and running_localtunnelip and anycastip == running_localtunnelip:
 | 
						|
                    localtunnelip = running_localtunnelip
 | 
						|
                running_svcnode = vxlanattrs.get('svcnode')
 | 
						|
                if running_svcnode and not svcnodeip:
 | 
						|
                    args += ' noremote'
 | 
						|
        else:
 | 
						|
            cmd = 'link add dev %s type vxlan id %s dstport %d' %(name, vxlanid, VXLAN_UDP_PORT)
 | 
						|
 | 
						|
        if localtunnelip:
 | 
						|
            args += ' local %s' %localtunnelip
 | 
						|
        cmd += args
 | 
						|
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            self.add_to_batch(cmd)
 | 
						|
        else:
 | 
						|
            utils.exec_command('ip %s' % cmd)
 | 
						|
 | 
						|
        # XXX: update linkinfo correctly
 | 
						|
        self._cache_update([name], {})
 | 
						|
 | 
						|
    def link_exists(self, ifacename):
 | 
						|
        if ifupdownflags.flags.DRYRUN:
 | 
						|
            return True
 | 
						|
        return os.path.exists('/sys/class/net/%s' %ifacename)
 | 
						|
 | 
						|
    def link_get_ifindex(self, ifacename):
 | 
						|
        if ifupdownflags.flags.DRYRUN:
 | 
						|
            return True
 | 
						|
        return self.read_file_oneline('/sys/class/net/%s/ifindex' %ifacename)
 | 
						|
 | 
						|
    def is_vlan_device_by_name(self, ifacename):
 | 
						|
        if re.search(r'\.', ifacename):
 | 
						|
            return True
 | 
						|
        return False
 | 
						|
 | 
						|
    def route_add(self, route):
 | 
						|
        utils.exec_command('ip route add %s' % route)
 | 
						|
 | 
						|
    def route6_add(self, route):
 | 
						|
        utils.exec_command('ip -6 route add %s' % route)
 | 
						|
 | 
						|
    def get_vlandev_attrs(self, ifacename):
 | 
						|
        return (self._cache_get('link', [ifacename, 'link']),
 | 
						|
                self._cache_get('link', [ifacename, 'linkinfo', 'vlanid']))
 | 
						|
 | 
						|
    def get_vxlandev_attrs(self, ifacename):
 | 
						|
        return self._cache_get('link', [ifacename, 'linkinfo'])
 | 
						|
 | 
						|
    def link_get_linkinfo_attrs(self, ifacename):
 | 
						|
        return self._cache_get('link', [ifacename, 'linkinfo'])
 | 
						|
 | 
						|
    def link_get_mtu(self, ifacename, refresh=False):
 | 
						|
        return self._cache_get('link', [ifacename, 'mtu'], refresh=refresh)
 | 
						|
 | 
						|
    def link_get_kind(self, ifacename):
 | 
						|
        return self._cache_get('link', [ifacename, 'kind'])
 | 
						|
 | 
						|
    def link_get_hwaddress(self, ifacename):
 | 
						|
        address = self._cache_get('link', [ifacename, 'hwaddress'])
 | 
						|
        # newly created logical interface addresses dont end up in the cache
 | 
						|
        # read hwaddress from sysfs file for these interfaces
 | 
						|
        if not address:
 | 
						|
            address = self.read_file_oneline('/sys/class/net/%s/address'
 | 
						|
                                             %ifacename)
 | 
						|
        return address
 | 
						|
 | 
						|
    def link_create(self, ifacename, type, attrs={}):
 | 
						|
        """ generic link_create function """
 | 
						|
        if self.link_exists(ifacename):
 | 
						|
            return
 | 
						|
        cmd = 'link add'
 | 
						|
        cmd += ' name %s type %s' %(ifacename, type)
 | 
						|
        if attrs:
 | 
						|
            for k, v in attrs.iteritems():
 | 
						|
                cmd += ' %s' %k
 | 
						|
                if v:
 | 
						|
                    cmd += ' %s' %v
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            self.add_to_batch(cmd)
 | 
						|
        else:
 | 
						|
            utils.exec_command('ip %s' % cmd)
 | 
						|
        self._cache_update([ifacename], {})
 | 
						|
 | 
						|
    def link_delete(self, ifacename):
 | 
						|
        if not self.link_exists(ifacename):
 | 
						|
            return
 | 
						|
        cmd = 'link del %s' %ifacename
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            self.add_to_batch(cmd)
 | 
						|
        else:
 | 
						|
            utils.exec_command('ip %s' % cmd)
 | 
						|
        self._cache_invalidate()
 | 
						|
 | 
						|
    def link_get_master(self, ifacename):
 | 
						|
        sysfs_master_path = '/sys/class/net/%s/master' %ifacename
 | 
						|
        if os.path.exists(sysfs_master_path):
 | 
						|
            link_path = os.readlink(sysfs_master_path)
 | 
						|
            if link_path:
 | 
						|
                return os.path.basename(link_path)
 | 
						|
            else:
 | 
						|
                return None
 | 
						|
        else:
 | 
						|
            return self._cache_get('link', [ifacename, 'master'])
 | 
						|
 | 
						|
    def bridge_port_vids_add(self, bridgeportname, vids):
 | 
						|
        [utils.exec_command('bridge vlan add vid %s dev %s' %
 | 
						|
                            (v, bridgeportname)) for v in vids]
 | 
						|
 | 
						|
    def bridge_port_vids_del(self, bridgeportname, vids):
 | 
						|
        if not vids:
 | 
						|
            return
 | 
						|
        [utils.exec_command('bridge vlan del vid %s dev %s' %
 | 
						|
                            (v, bridgeportname)) for v in vids]
 | 
						|
 | 
						|
    def bridge_port_vids_flush(self, bridgeportname, vid):
 | 
						|
        utils.exec_command('bridge vlan del vid %s dev %s' %
 | 
						|
                           (vid, bridgeportname))
 | 
						|
 | 
						|
    def bridge_port_vids_get(self, bridgeportname):
 | 
						|
        utils.exec_command('/sbin/bridge vlan show %s' % bridgeportname)
 | 
						|
        bridgeout = utils.exec_command('/sbin/bridge vlan show dev %s' %
 | 
						|
                                       bridgeportname)
 | 
						|
        if not bridgeout: return []
 | 
						|
        brvlanlines = bridgeout.readlines()[2:]
 | 
						|
        vids = [l.strip() for l in brvlanlines]
 | 
						|
        return [v for v in vids if v]
 | 
						|
 | 
						|
    def bridge_port_vids_get_all(self):
 | 
						|
        brvlaninfo = {}
 | 
						|
        bridgeout = utils.exec_command('/sbin/bridge -c vlan show')
 | 
						|
        if not bridgeout: return brvlaninfo
 | 
						|
        brvlanlines = bridgeout.splitlines()
 | 
						|
        brportname=None
 | 
						|
        for l in brvlanlines[1:]:
 | 
						|
            if l and not l.startswith(' ') and not l.startswith('\t'):
 | 
						|
                attrs = l.split()
 | 
						|
                brportname = attrs[0].strip()
 | 
						|
                brvlaninfo[brportname] = {'pvid' : None, 'vlan' : []}
 | 
						|
                l = ' '.join(attrs[1:])
 | 
						|
            if not brportname or not l:
 | 
						|
                continue
 | 
						|
            l = l.strip()
 | 
						|
            if 'PVID' in l:
 | 
						|
                brvlaninfo[brportname]['pvid'] = l.split()[0]
 | 
						|
            elif 'Egress Untagged' not in l:
 | 
						|
                brvlaninfo[brportname]['vlan'].append(l)
 | 
						|
        return brvlaninfo
 | 
						|
 | 
						|
    def bridge_port_vids_get_all_json(self):
 | 
						|
        brvlaninfo = {}
 | 
						|
        bridgeout = utils.exec_command('/sbin/bridge -c -json vlan show')
 | 
						|
        if not bridgeout: return brvlaninfo
 | 
						|
        try:
 | 
						|
            vlan_json_dict = json.loads(bridgeout, encoding="utf-8")
 | 
						|
        except Exception, e:
 | 
						|
            self.logger.info('json loads failed with (%s)' %str(e))
 | 
						|
            return {}
 | 
						|
        return vlan_json_dict
 | 
						|
 | 
						|
    def bridge_port_pvid_add(self, bridgeportname, pvid):
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            self.add_to_batch('vlan add vid %s untagged pvid dev %s' %
 | 
						|
                              (pvid, bridgeportname))
 | 
						|
        else:
 | 
						|
            utils.exec_command('bridge vlan add vid %s untagged pvid dev %s' %
 | 
						|
                               (pvid, bridgeportname))
 | 
						|
 | 
						|
    def bridge_port_pvid_del(self, bridgeportname, pvid):
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            self.add_to_batch('vlan del vid %s untagged pvid dev %s' %
 | 
						|
                              (pvid, bridgeportname))
 | 
						|
        else:
 | 
						|
            utils.exec_command('bridge vlan del vid %s untagged pvid dev %s' %
 | 
						|
                               (pvid, bridgeportname))
 | 
						|
 | 
						|
    def bridge_port_pvids_get(self, bridgeportname):
 | 
						|
        return self.read_file_oneline('/sys/class/net/%s/brport/pvid'
 | 
						|
                                      %bridgeportname)
 | 
						|
 | 
						|
    def bridge_vids_add(self, bridgeportname, vids, bridge=True):
 | 
						|
        target = 'self' if bridge else ''
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            [self.add_to_batch('vlan add vid %s dev %s %s' %
 | 
						|
                               (v, bridgeportname, target)) for v in vids]
 | 
						|
        else:
 | 
						|
            [utils.exec_command('bridge vlan add vid %s dev %s %s' %
 | 
						|
                                (v, bridgeportname, target)) for v in vids]
 | 
						|
 | 
						|
    def bridge_vids_del(self, bridgeportname, vids, bridge=True):
 | 
						|
        target = 'self' if bridge else ''
 | 
						|
        if self.ipbatch and not self.ipbatch_pause:
 | 
						|
            [self.add_to_batch('vlan del vid %s dev %s %s' %
 | 
						|
                               (v, bridgeportname, target)) for v in vids]
 | 
						|
        else:
 | 
						|
            [utils.exec_command('bridge vlan del vid %s dev %s %s' %
 | 
						|
                                (v, bridgeportname, target)) for v in vids]
 | 
						|
 | 
						|
    def bridge_fdb_add(self, dev, address, vlan=None, bridge=True, remote=None):
 | 
						|
        target = 'self' if bridge else ''
 | 
						|
        vlan_str = ''
 | 
						|
        if vlan:
 | 
						|
            vlan_str = 'vlan %s ' % vlan
 | 
						|
 | 
						|
        dst_str = ''
 | 
						|
        if remote:
 | 
						|
            dst_str = 'dst %s ' % remote
 | 
						|
 | 
						|
        utils.exec_command('bridge fdb replace %s dev %s %s %s %s' %
 | 
						|
                           (address, dev, vlan_str, target, dst_str))
 | 
						|
 | 
						|
    def bridge_fdb_append(self, dev, address, vlan=None, bridge=True, remote=None):
 | 
						|
        target = 'self' if bridge else ''
 | 
						|
        vlan_str = ''
 | 
						|
        if vlan:
 | 
						|
            vlan_str = 'vlan %s ' % vlan
 | 
						|
 | 
						|
        dst_str = ''
 | 
						|
        if remote:
 | 
						|
            dst_str = 'dst %s ' % remote
 | 
						|
 | 
						|
        utils.exec_command('bridge fdb append %s dev %s %s %s %s' %
 | 
						|
                           (address, dev, vlan_str, target, dst_str))
 | 
						|
 | 
						|
    def bridge_fdb_del(self, dev, address, vlan=None, bridge=True, remote=None):
 | 
						|
        target = 'self' if bridge else ''
 | 
						|
        vlan_str = ''
 | 
						|
        if vlan:
 | 
						|
            vlan_str = 'vlan %s ' % vlan
 | 
						|
 | 
						|
        dst_str = ''
 | 
						|
        if remote:
 | 
						|
            dst_str = 'dst %s ' % remote
 | 
						|
        utils.exec_command('bridge fdb del %s dev %s %s %s %s' %
 | 
						|
                           (address, dev, vlan_str, target, dst_str))
 | 
						|
 | 
						|
    def bridge_is_vlan_aware(self, bridgename):
 | 
						|
        filename = '/sys/class/net/%s/bridge/vlan_filtering' %bridgename
 | 
						|
        if os.path.exists(filename) and self.read_file_oneline(filename) == '1':
 | 
						|
            return True
 | 
						|
        return False
 | 
						|
 | 
						|
    def bridge_port_get_bridge_name(self, bridgeport):
 | 
						|
        filename = '/sys/class/net/%s/brport/bridge' %bridgeport
 | 
						|
        try:
 | 
						|
            return os.path.basename(os.readlink(filename))
 | 
						|
        except:
 | 
						|
            return None
 | 
						|
 | 
						|
    def bridge_port_exists(self, bridge, bridgeportname):
 | 
						|
        try:
 | 
						|
            return os.path.exists('/sys/class/net/%s/brif/%s'
 | 
						|
                                  %(bridge, bridgeportname))
 | 
						|
        except Exception:
 | 
						|
            return False
 | 
						|
 | 
						|
    def bridge_fdb_show_dev(self, dev):
 | 
						|
        try:
 | 
						|
            fdbs = {}
 | 
						|
            output = utils.exec_command('bridge fdb show dev %s' % dev)
 | 
						|
            if output:
 | 
						|
                for fdb_entry in output.splitlines():
 | 
						|
                    try:
 | 
						|
                        entries = fdb_entry.split()
 | 
						|
                        fdbs.setdefault(entries[2], []).append(entries[0])
 | 
						|
                    except:
 | 
						|
                        self.logger.debug('%s: invalid fdb line \'%s\''
 | 
						|
                                %(dev, fdb_entry))
 | 
						|
                        pass
 | 
						|
            return fdbs
 | 
						|
        except Exception:
 | 
						|
            return None
 | 
						|
 | 
						|
    def is_bridge(self, bridge):
 | 
						|
        return os.path.exists('/sys/class/net/%s/bridge' %bridge)
 | 
						|
 | 
						|
    def is_link_up(self, ifacename):
 | 
						|
        ret = False
 | 
						|
        try:
 | 
						|
            flags = self.read_file_oneline('/sys/class/net/%s/flags' %ifacename)
 | 
						|
            iflags = int(flags, 16)
 | 
						|
            if (iflags & 0x0001):
 | 
						|
                ret = True
 | 
						|
        except:
 | 
						|
            ret = False
 | 
						|
            pass
 | 
						|
        return ret
 | 
						|
 | 
						|
    def ip_route_get_dev(self, prefix):
 | 
						|
        try:
 | 
						|
            output = utils.exec_command('ip route get %s' % prefix)
 | 
						|
            if output:
 | 
						|
               rline = output.splitlines()[0]
 | 
						|
               if rline:
 | 
						|
                    rattrs = rline.split()
 | 
						|
                    return rattrs[rattrs.index('dev') + 1]
 | 
						|
        except Exception, e:
 | 
						|
            self.logger.debug('ip_route_get_dev: failed .. %s' %str(e))
 | 
						|
            pass
 | 
						|
        return None
 | 
						|
 | 
						|
    def link_get_lowers(self, ifacename):
 | 
						|
        try:
 | 
						|
            lowers = glob.glob("/sys/class/net/%s/lower_*" %ifacename)
 | 
						|
            if not lowers:
 | 
						|
                return []
 | 
						|
            return [os.path.basename(l)[6:] for l in lowers]
 | 
						|
        except:
 | 
						|
            return []
 | 
						|
 | 
						|
    def link_get_upper(self, ifacename):
 | 
						|
        try:
 | 
						|
            upper = glob.glob("/sys/class/net/%s/upper_*" %ifacename)
 | 
						|
            if not upper:
 | 
						|
                return None
 | 
						|
            return os.path.basename(upper[0])[6:]
 | 
						|
        except:
 | 
						|
            return None
 | 
						|
 | 
						|
    def link_get_vrfs(self):
 | 
						|
        self._fill_cache()
 | 
						|
        return linkCache.vrfs
 |