3 # Copyright (c) 2008,2009 Citrix Systems, Inc. All rights reserved.
4 # Copyright (c) 2009 Nicira Networks.
8 %(command-name)s --session <SESSION-REF> --pif <PIF-REF> [up|down|rewrite]
9 %(command-name)s --force <BRIDGE> [up|down|rewrite <CONFIG>]
10 %(command-name)s --force all down
13 <CONFIG> = --device=<INTERFACE> --mode=dhcp
14 <CONFIG> = --device=<INTERFACE> --mode=static --ip=<IPADDR> --netmask=<NM> [--gateway=<GW>]
17 --session A session reference to use to access the xapi DB
18 --pif A PIF reference.
19 --force-interface An interface name. Mutually exclusive with --session/--pif.
21 Either both --session and --pif or just --pif-uuid.
23 <ACTION> is either "up" or "down" or "rewrite"
27 # Undocumented parameters for test & dev:
29 # --output-directory=<DIR> Write configuration to <DIR>. Also disables actually
30 # raising/lowering the interfaces
31 # --pif-uuid A PIF UUID, use instead of --session/--pif.
36 # 1. Every pif belongs to exactly one network
37 # 2. Every network has zero or one pifs
38 # 3. A network may have an associated bridge, allowing vifs to be attached
39 # 4. A network may be bridgeless (there's no point having a bridge over a storage pif)
41 # XXX: --force-interface=all down
43 # XXX: --force-interface rewrite
45 # XXX: Sometimes this leaves "orphaned" datapaths, e.g. a datapath whose
46 # only port is the local port. Should delete those.
48 # XXX: This can leave crud in ovs-vswitchd.conf in this scenario:
49 # - Create bond in XenCenter.
50 # - Create VLAN on bond in XenCenter.
51 # - Attempt to delete bond in XenCenter (this will fail because there
52 # is a VLAN on the bond, although the error may not be reported
53 # until the next step)
54 # - Delete VLAN in XenCenter.
55 # - Delete bond in XenCenter.
56 # At this point there will still be some configuration data for the bond
57 # or the VLAN in ovs-vswitchd.conf.
60 import os, sys, getopt, time, signal
68 output_directory = None
73 dbcache_file = "/etc/ovs-vswitch.dbcache"
74 vswitch_config_dir = "/etc/openvswitch"
76 class Usage(Exception):
77 def __init__(self, msg):
78 Exception.__init__(self)
81 class Error(Exception):
82 def __init__(self, msg):
83 Exception.__init__(self)
86 class ConfigurationFile(object):
87 """Write a file, tracking old and new versions.
89 Supports writing a new version of a file and applying and
90 reverting those changes.
93 __STATE = {"OPEN":"OPEN",
94 "NOT-APPLIED":"NOT-APPLIED", "APPLIED":"APPLIED",
95 "REVERTED":"REVERTED", "COMMITTED": "COMMITTED"}
97 def __init__(self, fname, path="/etc/sysconfig/network-scripts"):
99 self.__state = self.__STATE['OPEN']
104 dirname = output_directory
108 self.__path = os.path.join(dirname, fname)
109 self.__oldpath = os.path.join(dirname, "." + fname + ".xapi-old")
110 self.__newpath = os.path.join(dirname, "." + fname + ".xapi-new")
111 self.__unlink = False
113 self.__f = open(self.__newpath, "w")
115 def attach_child(self, child):
116 self.__children.append(child)
123 return open(self.path()).readlines()
127 def write(self, args):
128 if self.__state != self.__STATE['OPEN']:
129 raise Error("Attempt to write to file in state %s" % self.__state)
133 if self.__state != self.__STATE['OPEN']:
134 raise Error("Attempt to unlink file in state %s" % self.__state)
137 self.__state = self.__STATE['NOT-APPLIED']
140 if self.__state != self.__STATE['OPEN']:
141 raise Error("Attempt to close file in state %s" % self.__state)
144 self.__state = self.__STATE['NOT-APPLIED']
147 if self.__state != self.__STATE['NOT-APPLIED']:
148 raise Error("Attempt to compare file in state %s" % self.__state)
153 if self.__state != self.__STATE['NOT-APPLIED']:
154 raise Error("Attempt to apply configuration from state %s" % self.__state)
156 for child in self.__children:
159 log("Applying changes to %s configuration" % self.__fname)
161 # Remove previous backup.
162 if os.access(self.__oldpath, os.F_OK):
163 os.unlink(self.__oldpath)
165 # Save current configuration.
166 if os.access(self.__path, os.F_OK):
167 os.link(self.__path, self.__oldpath)
168 os.unlink(self.__path)
170 # Apply new configuration.
171 assert(os.path.exists(self.__newpath))
172 if not self.__unlink:
173 os.link(self.__newpath, self.__path)
175 pass # implicit unlink of original file
177 # Remove temporary file.
178 os.unlink(self.__newpath)
180 self.__state = self.__STATE['APPLIED']
183 if self.__state != self.__STATE['APPLIED']:
184 raise Error("Attempt to revert configuration from state %s" % self.__state)
186 for child in self.__children:
189 log("Reverting changes to %s configuration" % self.__fname)
191 # Remove existing new configuration
192 if os.access(self.__newpath, os.F_OK):
193 os.unlink(self.__newpath)
195 # Revert new configuration.
196 if os.access(self.__path, os.F_OK):
197 os.link(self.__path, self.__newpath)
198 os.unlink(self.__path)
200 # Revert to old configuration.
201 if os.access(self.__oldpath, os.F_OK):
202 os.link(self.__oldpath, self.__path)
203 os.unlink(self.__oldpath)
205 # Leave .*.xapi-new as an aid to debugging.
207 self.__state = self.__STATE['REVERTED']
210 if self.__state != self.__STATE['APPLIED']:
211 raise Error("Attempt to commit configuration from state %s" % self.__state)
213 for child in self.__children:
216 log("Committing changes to %s configuration" % self.__fname)
218 if os.access(self.__oldpath, os.F_OK):
219 os.unlink(self.__oldpath)
220 if os.access(self.__newpath, os.F_OK):
221 os.unlink(self.__newpath)
223 self.__state = self.__STATE['COMMITTED']
226 return output_directory is not None
230 print >>sys.stderr, s
234 def check_allowed(pif):
235 pifrec = db.get_pif_record(pif)
237 f = open("/proc/ardence")
238 macline = filter(lambda x: x.startswith("HWaddr:"), f.readlines())
240 if len(macline) == 1:
241 p = re.compile(".*\s%(MAC)s\s.*" % pifrec, re.IGNORECASE)
242 if p.match(macline[0]):
243 log("Skipping PVS device %(device)s (%(MAC)s)" % pifrec)
249 def interface_exists(i):
250 return os.path.exists("/sys/class/net/" + i)
252 def get_netdev_mac(device):
254 return read_first_line_of_file("/sys/class/net/%s/address" % device)
256 # Probably no such device.
259 def get_netdev_tx_queue_len(device):
261 return int(read_first_line_of_file("/sys/class/net/%s/tx_queue_len"
264 # Probably no such device.
267 def get_netdev_by_mac(mac):
269 for device in os.listdir("/sys/class/net"):
270 dev_mac = get_netdev_by_mac(device)
271 if dev_mac and mac.lower() == dev_mac.lower():
272 if get_netdev_tx_queue_len(device):
275 # Probably a datapath internal port.
279 class DatabaseCache(object):
280 def __init__(self, session_ref=None, cache_file=None):
281 if session_ref and cache_file:
282 raise Error("can't specify session reference and cache file")
284 if cache_file == None:
285 session = XenAPI.xapi_local()
288 log("No session ref given on command line, logging in.")
289 session.xenapi.login_with_password("root", "")
291 session._session = session_ref
294 self.__vlans = session.xenapi.VLAN.get_all_records()
295 self.__bonds = session.xenapi.Bond.get_all_records()
296 self.__pifs = session.xenapi.PIF.get_all_records()
297 self.__networks = session.xenapi.network.get_all_records()
300 session.xenapi.session.logout()
302 log("Loading xapi database cache from %s" % cache_file)
303 f = open(cache_file, 'r')
304 members = pickle.load(f)
305 self.extras = pickle.load(f)
308 self.__vlans = members['vlans']
309 self.__bonds = members['bonds']
310 self.__pifs = members['pifs']
311 self.__networks = members['networks']
313 def save(self, cache_file, extras):
314 f = open(cache_file, 'w')
315 pickle.dump({'vlans': self.__vlans,
316 'bonds': self.__bonds,
318 'networks': self.__networks}, f)
319 pickle.dump(extras, f)
322 def get_pif_by_uuid(self, uuid):
323 pifs = map(lambda (ref,rec): ref,
324 filter(lambda (ref,rec): uuid == rec['uuid'],
325 self.__pifs.items()))
327 raise Error("Unknown PIF \"%s\"" % uuid)
329 raise Error("Non-unique PIF \"%s\"" % uuid)
333 def get_pifs_by_record(self, record):
334 """record is partial pif record.
335 Get the pif(s) whose record matches.
339 if record[key] != pifrec[key]:
343 return map(lambda (ref,rec): ref,
344 filter(lambda (ref,rec): match(rec),
345 self.__pifs.items()))
347 def get_pif_by_record(self, record):
348 """record is partial pif record.
349 Get the pif whose record matches.
351 pifs = self.get_pifs_by_record(record)
353 raise Error("No matching PIF \"%s\"" % str(record))
355 raise Error("Multiple matching PIFs \"%s\"" % str(record))
359 def get_pif_by_bridge(self, host, bridge):
360 networks = map(lambda (ref,rec): ref,
361 filter(lambda (ref,rec): rec['bridge'] == bridge,
362 self.__networks.items()))
363 if len(networks) == 0:
364 raise Error("No matching network \"%s\"")
367 for network in networks:
368 nwrec = self.get_network_record(network)
369 for pif in nwrec['PIFs']:
370 pifrec = self.get_pif_record(pif)
371 if pifrec['host'] != host:
374 raise Error("Multiple PIFs on %s for network %s" % (host, bridge))
377 raise Error("No PIF on %s for network %s" % (host, bridge))
380 def get_pif_record(self, pif):
381 if self.__pifs.has_key(pif):
382 return self.__pifs[pif]
383 raise Error("Unknown PIF \"%s\"" % pif)
384 def get_all_pifs(self):
386 def pif_exists(self, pif):
387 return self.__pifs.has_key(pif)
389 def get_management_pif(self, host):
390 """ Returns the management pif on host
392 all = self.get_all_pifs()
394 pifrec = self.get_pif_record(pif)
395 if pifrec['management'] and pifrec['host'] == host :
399 def get_network_record(self, network):
400 if self.__networks.has_key(network):
401 return self.__networks[network]
402 raise Error("Unknown network \"%s\"" % network)
403 def get_all_networks(self):
404 return self.__networks
406 def get_bond_record(self, bond):
407 if self.__bonds.has_key(bond):
408 return self.__bonds[bond]
412 def get_vlan_record(self, vlan):
413 if self.__vlans.has_key(vlan):
414 return self.__vlans[vlan]
418 def bridge_name(pif):
419 """Return the bridge name associated with pif, or None if network is bridgeless"""
420 pifrec = db.get_pif_record(pif)
421 nwrec = db.get_network_record(pifrec['network'])
424 # TODO: sanity check that nwrec['bridgeless'] != 'true'
425 return nwrec['bridge']
427 # TODO: sanity check that nwrec['bridgeless'] == 'true'
430 def interface_name(pif):
431 """Construct an interface name from the given PIF record."""
433 pifrec = db.get_pif_record(pif)
435 if pifrec['VLAN'] == '-1':
436 return pifrec['device']
438 return "%(device)s.%(VLAN)s" % pifrec
440 def datapath_name(pif):
441 """Return the OpenFlow datapath name associated with pif.
442 For a non-VLAN PIF, the datapath name is the bridge name.
443 For a VLAN PIF, the datapath name is the bridge name for the PIF's VLAN slave.
444 (xapi will create a datapath named with the bridge name even though we won't
448 pifrec = db.get_pif_record(pif)
450 if pifrec['VLAN'] == '-1':
451 return bridge_name(pif)
453 return bridge_name(get_vlan_slave_of_pif(pif))
456 """Return the the name of the network device that carries the
457 IP configuration (if any) associated with pif.
458 The ipdev name is the same as the bridge name.
461 pifrec = db.get_pif_record(pif)
462 return bridge_name(pif)
464 def physdev_pifs(pif):
465 """Return the PIFs for the physical network device(s) associated with pif.
466 For a VLAN PIF, this is the VLAN slave's physical device PIF.
467 For a bond master PIF, these are the bond slave PIFs.
468 For a non-VLAN, non-bond master PIF, the PIF is its own physical device PIF.
471 pifrec = db.get_pif_record(pif)
473 if pifrec['VLAN'] != '-1':
474 return [get_vlan_slave_of_pif(pif)]
475 elif len(pifrec['bond_master_of']) != 0:
476 return get_bond_slaves_of_pif(pif)
480 def physdev_names(pif):
481 """Return the name(s) of the physical network device(s) associated with pif.
482 For a VLAN PIF, the physical devices are the VLAN slave's physical devices.
483 For a bond master PIF, the physical devices are the bond slaves.
484 For a non-VLAN, non-bond master PIF, the physical device is the PIF itself.
487 return [db.get_pif_record(phys)['device'] for phys in physdev_pifs(pif)]
489 def log_pif_action(action, pif):
490 pifrec = db.get_pif_record(pif)
491 pifrec['action'] = action
492 pifrec['interface-name'] = interface_name(pif)
493 if action == "rewrite":
494 pifrec['message'] = "Rewrite PIF %(uuid)s configuration" % pifrec
496 pifrec['message'] = "Bring %(action)s PIF %(uuid)s" % pifrec
497 log("%(message)s: %(interface-name)s configured as %(ip_configuration_mode)s" % pifrec)
499 def get_bond_masters_of_pif(pif):
500 """Returns a list of PIFs which are bond masters of this PIF"""
502 pifrec = db.get_pif_record(pif)
504 bso = pifrec['bond_slave_of']
506 # bond-slave-of is currently a single reference but in principle a
507 # PIF could be a member of several bonds which are not
508 # concurrently attached. Be robust to this possibility.
509 if not bso or bso == "OpaqueRef:NULL":
511 elif not type(bso) == list:
514 bondrecs = [db.get_bond_record(bond) for bond in bso]
515 bondrecs = [rec for rec in bondrecs if rec]
517 return [bond['master'] for bond in bondrecs]
519 def get_bond_slaves_of_pif(pif):
520 """Returns a list of PIFs which make up the given bonded pif."""
522 pifrec = db.get_pif_record(pif)
523 host = pifrec['host']
525 bmo = pifrec['bond_master_of']
527 raise Error("Bond-master-of contains too many elements")
532 bondrec = db.get_bond_record(bmo[0])
534 raise Error("No bond record for bond master PIF")
536 return bondrec['slaves']
538 def get_vlan_slave_of_pif(pif):
539 """Find the PIF which is the VLAN slave of pif.
541 Returns the 'physical' PIF underneath the a VLAN PIF @pif."""
543 pifrec = db.get_pif_record(pif)
545 vlan = pifrec['VLAN_master_of']
546 if not vlan or vlan == "OpaqueRef:NULL":
547 raise Error("PIF is not a VLAN master")
549 vlanrec = db.get_vlan_record(vlan)
551 raise Error("No VLAN record found for PIF")
553 return vlanrec['tagged_PIF']
555 def get_vlan_masters_of_pif(pif):
556 """Returns a list of PIFs which are VLANs on top of the given pif."""
558 pifrec = db.get_pif_record(pif)
559 vlans = [db.get_vlan_record(v) for v in pifrec['VLAN_slave_of']]
560 return [v['untagged_PIF'] for v in vlans if v and db.pif_exists(v['untagged_PIF'])]
562 def interface_deconfigure_commands(interface):
563 # The use of [!0-9] keeps an interface of 'eth0' from matching
564 # VLANs attached to eth0 (such as 'eth0.123'), which are distinct
566 return ['--del-match=bridge.*.port=%s' % interface,
567 '--del-match=bonding.%s.[!0-9]*' % interface,
568 '--del-match=bonding.*.slave=%s' % interface,
569 '--del-match=vlan.%s.[!0-9]*' % interface,
570 '--del-match=port.%s.[!0-9]*' % interface,
571 '--del-match=iface.%s.[!0-9]*' % interface]
573 def run_command(command):
574 log("Running command: " + ' '.join(command))
575 if os.spawnl(os.P_WAIT, command[0], *command) != 0:
576 log("Command failed: " + ' '.join(command))
580 def rename_netdev(old_name, new_name):
581 log("Changing the name of %s to %s" % (old_name, new_name))
582 run_command(['/sbin/ifconfig', old_name, 'down'])
583 if not run_command(['/sbin/ip', 'link', 'set', old_name,
585 raise Error("Could not rename %s to %s" % (old_name, new_name))
587 # Check whether 'pif' exists and has the correct MAC.
588 # If not, try to find a device with the correct MAC and rename it.
589 # 'already_renamed' is used to avoid infinite recursion.
590 def remap_pif(pif, already_renamed=[]):
591 pifrec = db.get_pif_record(pif)
592 device = pifrec['device']
595 # Is there a network device named 'device' at all?
596 device_exists = interface_exists(device)
598 # Yes. Does it have MAC 'mac'?
599 found_mac = get_netdev_mac(device)
600 if found_mac and mac.lower() == found_mac.lower():
601 # Yes, everything checks out the way we want. Nothing to do.
604 log("No network device %s" % device)
606 # What device has MAC 'mac'?
607 cur_device = get_netdev_by_mac(mac)
609 log("No network device has MAC %s" % mac)
612 # First rename 'device', if it exists, to get it out of the way
613 # for 'cur_device' to replace it.
615 rename_netdev(device, "dev%d" % random.getrandbits(24))
617 # Rename 'cur_device' to 'device'.
618 rename_netdev(cur_device, device)
620 def read_first_line_of_file(name):
623 file = open(name, 'r')
624 return file.readline().rstrip('\n')
629 def down_netdev(interface, deconfigure=True):
630 if not interface_exists(interface):
631 log("down_netdev: interface %s does not exist, ignoring" % interface)
635 pidfile_name = '/var/run/dhclient-%s.pid' % interface
637 os.kill(int(read_first_line_of_file(pidfile_name)), signal.SIGTERM)
641 # Remove dhclient pidfile.
643 os.remove(pidfile_name)
647 run_command(["/sbin/ifconfig", interface, '0.0.0.0'])
649 run_command(["/sbin/ifconfig", interface, 'down'])
651 def up_netdev(interface):
652 run_command(["/sbin/ifconfig", interface, 'up'])
654 def find_distinguished_pifs(pif):
655 """Returns the PIFs on host that own DNS and the default route.
656 The peerdns pif will be the one with pif::other-config:peerdns=true, or the mgmt pif if none have this set.
657 The gateway pif will be the one with pif::other-config:defaultroute=true, or the mgmt pif if none have this set.
659 Note: we prune out the bond master pif (if it exists).
660 This is because when we are called to bring up an interface with a bond master, it is implicit that
661 we should bring down that master."""
663 pifrec = db.get_pif_record(pif)
664 host = pifrec['host']
666 pifs_on_host = [ __pif for __pif in db.get_all_pifs() if
667 db.get_pif_record(__pif)['host'] == host and
668 (not __pif in get_bond_masters_of_pif(pif)) ]
671 defaultroute_pif = None
673 # loop through all the pifs on this host looking for one with
674 # other-config:peerdns = true, and one with
675 # other-config:default-route=true
676 for __pif in pifs_on_host:
677 __pifrec = db.get_pif_record(__pif)
678 __oc = __pifrec['other_config']
679 if __oc.has_key('peerdns') and __oc['peerdns'] == 'true':
680 if peerdns_pif == None:
683 log('Warning: multiple pifs with "peerdns=true" - choosing %s and ignoring %s' % \
684 (db.get_pif_record(peerdns_pif)['device'], __pifrec['device']))
685 if __oc.has_key('defaultroute') and __oc['defaultroute'] == 'true':
686 if defaultroute_pif == None:
687 defaultroute_pif = __pif
689 log('Warning: multiple pifs with "defaultroute=true" - choosing %s and ignoring %s' % \
690 (db.get_pif_record(defaultroute_pif)['device'], __pifrec['device']))
692 # If no pif is explicitly specified then use the mgmt pif for peerdns/defaultroute
693 if peerdns_pif == None:
694 peerdns_pif = management_pif
695 if defaultroute_pif == None:
696 defaultroute_pif = management_pif
698 return peerdns_pif, defaultroute_pif
700 def ethtool_settings(oc):
701 # Options for "ethtool -s"
703 if oc.has_key('ethtool-speed'):
704 val = oc['ethtool-speed']
705 if val in ["10", "100", "1000"]:
706 settings += ['speed', val]
708 log("Invalid value for ethtool-speed = %s. Must be 10|100|1000." % val)
709 if oc.has_key('ethtool-duplex'):
710 val = oc['ethtool-duplex']
711 if val in ["10", "100", "1000"]:
712 settings += ['duplex', 'val']
714 log("Invalid value for ethtool-duplex = %s. Must be half|full." % val)
715 if oc.has_key('ethtool-autoneg'):
716 val = oc['ethtool-autoneg']
717 if val in ["true", "on"]:
718 settings += ['autoneg', 'on']
719 elif val in ["false", "off"]:
720 settings += ['autoneg', 'off']
722 log("Invalid value for ethtool-autoneg = %s. Must be on|true|off|false." % val)
724 # Options for "ethtool -K"
726 for opt in ("rx", "tx", "sg", "tso", "ufo", "gso"):
727 if oc.has_key("ethtool-" + opt):
728 val = oc["ethtool-" + opt]
729 if val in ["true", "on"]:
730 offload += [opt, 'on']
731 elif val in ["false", "off"]:
732 offload += [opt, 'off']
734 log("Invalid value for ethtool-%s = %s. Must be on|true|off|false." % (opt, val))
736 return settings, offload
738 def configure_netdev(pif):
739 pifrec = db.get_pif_record(pif)
740 datapath = datapath_name(pif)
741 ipdev = ipdev_name(pif)
743 host = pifrec['host']
744 nw = pifrec['network']
745 nwrec = db.get_network_record(nw)
747 ifconfig_argv = ['/sbin/ifconfig', ipdev, 'up']
749 if pifrec['ip_configuration_mode'] == "DHCP":
751 elif pifrec['ip_configuration_mode'] == "Static":
752 ifconfig_argv += [pifrec['IP']]
753 ifconfig_argv += ['netmask', pifrec['netmask']]
754 gateway = pifrec['gateway']
755 elif pifrec['ip_configuration_mode'] == "None":
759 raise Error("Unknown IP-configuration-mode %s" % pifrec['ip_configuration_mode'])
762 if pifrec.has_key('other_config'):
763 oc = pifrec['other_config']
764 if oc.has_key('mtu'):
765 int(oc['mtu']) # Check that the value is an integer
766 ifconfig_argv += ['mtu', oc['mtu']]
768 run_command(ifconfig_argv)
770 (peerdns_pif, defaultroute_pif) = find_distinguished_pifs(pif)
772 if peerdns_pif == pif:
773 f = ConfigurationFile('resolv.conf', "/etc")
774 if oc.has_key('domain'):
775 f.write("search %s\n" % oc['domain'])
776 for dns in pifrec['DNS'].split(","):
777 f.write("nameserver %s\n" % dns)
782 if defaultroute_pif == pif and gateway != '':
783 run_command(['/sbin/ip', 'route', 'replace', 'default',
784 'via', gateway, 'dev', ipdev])
786 if oc.has_key('static-routes'):
787 for line in oc['static-routes'].split(','):
788 network, masklen, gateway = line.split('/')
789 run_command(['/sbin/ip', 'route', 'add',
790 '%s/%s' % (netmask, masklen), 'via', gateway,
793 settings, offload = ethtool_settings(oc)
795 run_command(['/sbin/ethtool', '-s', ipdev] + settings)
797 run_command(['/sbin/ethtool', '-K', ipdev] + offload)
799 if pifrec['ip_configuration_mode'] == "DHCP":
801 print "Determining IP information for %s..." % ipdev,
802 argv = ['/sbin/dhclient', '-q',
803 '-lf', '/var/lib/dhclient/dhclient-%s.leases' % ipdev,
804 '-pf', '/var/run/dhclient-%s.pid' % ipdev,
806 if run_command(argv):
811 def modify_config(commands):
812 run_command(['/root/vswitch/bin/ovs-cfg-mod', '-vANY:console:emer',
813 '-F', '/etc/ovs-vswitchd.conf']
815 run_command(['/sbin/service', 'vswitch', 'reload'])
817 def is_bond_pif(pif):
818 pifrec = db.get_pif_record(pif)
819 return len(pifrec['bond_master_of']) != 0
821 def configure_bond(pif):
822 pifrec = db.get_pif_record(pif)
823 interface = interface_name(pif)
824 ipdev = ipdev_name(pif)
825 datapath = datapath_name(pif)
826 physdevs = physdev_names(pif)
828 argv = ['--del-match=bonding.%s.[!0-9]*' % interface]
829 argv += ["--add=bonding.%s.slave=%s" % (interface, slave)
830 for slave in physdevs]
832 if pifrec['MAC'] != "":
833 argv += ['--add=port.%s.mac=%s' % (interface, pifrec['MAC'])]
837 "mode": "balance-slb",
843 # override defaults with values from other-config whose keys
845 oc = pifrec['other_config']
846 overrides = filter(lambda (key,val):
847 key.startswith("bond-"), oc.items())
848 overrides = map(lambda (key,val): (key[5:], val), overrides)
849 bond_options.update(overrides)
850 for (name,val) in bond_options.items():
851 argv += ["--add=bonding.%s.%s=%s" % (interface, name, val)]
855 pifrec = db.get_pif_record(pif)
857 bridge = bridge_name(pif)
858 interface = interface_name(pif)
859 ipdev = ipdev_name(pif)
860 datapath = datapath_name(pif)
861 physdevs = physdev_names(pif)
863 if pifrec['VLAN'] != '-1':
864 vlan_slave = get_vlan_slave_of_pif(pif)
865 if vlan_slave and is_bond_pif(vlan_slave):
866 bond_master = vlan_slave
867 elif is_bond_pif(pif):
872 bond_slaves = get_bond_slaves_of_pif(bond_master)
875 bond_masters = get_bond_masters_of_pif(pif)
877 # Support "rpm -e vswitch" gracefully by keeping Centos configuration
878 # files up-to-date, even though we don't use them or need them.
879 f = configure_pif(pif)
880 mode = pifrec['ip_configuration_mode']
882 log("Configuring %s using %s configuration" % (bridge, mode))
883 br = open_network_ifcfg(pif)
884 configure_network(pif, br)
888 log("Configuring %s using %s configuration" % (interface, mode))
889 configure_network(pif, f)
891 for master in bond_masters:
892 master_bridge = bridge_name(master)
893 removed = unconfigure_pif(master)
894 f.attach_child(removed)
896 removed = open_network_ifcfg(master)
897 log("Unlinking stale file %s" % removed.path())
899 f.attach_child(removed)
901 # /etc/xensource/scripts/vif needs to know where to add VIFs.
903 if not os.path.exists(vswitch_config_dir):
904 os.mkdir(vswitch_config_dir)
905 br = ConfigurationFile("br-%s" % bridge, vswitch_config_dir)
906 br.write("VLAN_SLAVE=%s\n" % datapath)
907 br.write("VLAN_VID=%s\n" % pifrec['VLAN'])
911 # Update all configuration files (both ours and Centos's).
915 # Check the MAC address of each network device and remap if
916 # necessary to make names match our expectations.
917 for physdev_pif in physdev_pifs(pif):
918 remap_pif(physdev_pif)
920 # "ifconfig down" the network device and delete its IP address, etc.
922 for physdev in physdevs:
925 # If we are bringing up a bond, remove IP addresses from the
926 # slaves (because we are implicitly being asked to take them down).
928 # Conversely, if we are bringing up an interface that has bond
929 # masters, remove IP addresses from the bond master (because we
930 # are implicitly being asked to take it down).
931 for bond_pif in bond_slaves + bond_masters:
932 run_command(["/sbin/ifconfig", ipdev_name(bond_pif), '0.0.0.0'])
934 # Remove all keys related to pif and any bond masters linked to PIF.
935 del_ports = [ipdev] + physdevs + bond_masters
936 if vlan_slave and bond_master:
937 del_ports += [interface_name(bond_master)]
939 # What ports do we need to add to the datapath?
941 # We definitely need the ipdev, and ordinarily we want the
942 # physical devices too, but for bonds we need the bond as bridge
944 add_ports = [ipdev, datapath]
946 add_ports += physdevs
948 add_ports += [interface_name(bond_master)]
950 # What ports do we need to delete?
952 # - All the ports that we add, to avoid duplication and to drop
953 # them from another datapath in case they're misassigned.
955 # - The physical devices, since they will either be in add_ports
956 # or added to the bonding device (see below).
958 # - The bond masters for pif. (Ordinarily pif shouldn't have any
959 # bond masters. If it does then interface-reconfigure is
960 # implicitly being asked to take them down.)
961 del_ports = add_ports + physdevs + bond_masters
963 # What networks does this datapath carry?
965 # - The network corresponding to the datapath's PIF.
967 # - The networks corresponding to any VLANs attached to the
970 for nwpif in db.get_pifs_by_record({'device': pifrec['device'],
971 'host': pifrec['host']}):
972 net = db.get_pif_record(nwpif)['network']
973 network_uuids += [db.get_network_record(net)['uuid']]
975 # Bring up bond slaves early, because ovs-vswitchd initially
976 # enables or disables bond slaves based on whether carrier is
977 # detected when they are added, and a network device that is down
978 # always reports "no carrier".
979 bond_slave_physdevs = []
980 for slave in bond_slaves:
981 bond_slave_physdevs += physdev_names(slave)
982 for slave_physdev in bond_slave_physdevs:
983 up_netdev(slave_physdev)
985 # Now modify the ovs-vswitchd config file.
987 for port in set(del_ports):
988 argv += interface_deconfigure_commands(port)
989 for port in set(add_ports):
990 argv += ['--add=bridge.%s.port=%s' % (datapath, port)]
992 argv += ['--add=vlan.%s.tag=%s' % (ipdev, pifrec['VLAN'])]
993 argv += ['--add=iface.%s.internal=true' % (ipdev)]
995 # xapi creates a bridge by the name of the ipdev and requires
996 # that the IP address will be on it. We need to delete this
997 # bridge because we need that device to be a member of our
999 argv += ['--del-match=bridge.%s.[!0-9]*' % ipdev]
1001 # xapi insists that its attempts to create the bridge succeed,
1002 # so force that to happen.
1003 argv += ['--add=iface.%s.fake-bridge=true' % (ipdev)]
1006 os.unlink("%s/br-%s" % (vswitch_config_dir, bridge))
1009 argv += ['--del-match=bridge.%s.xs-network-uuids=*' % datapath]
1010 argv += ['--add=bridge.%s.xs-network-uuids=%s' % (datapath, uuid)
1011 for uuid in set(network_uuids)]
1013 argv += configure_bond(bond_master)
1016 # Configure network devices.
1017 configure_netdev(pif)
1019 # Bring up VLAN slave, plus physical devices other than bond
1020 # slaves (which we brought up earlier).
1022 up_netdev(ipdev_name(vlan_slave))
1023 for physdev in set(physdevs) - set(bond_slave_physdevs):
1026 # Update /etc/issue (which contains the IP address of the management interface)
1027 os.system("/sbin/update-issue")
1030 # There seems to be a race somewhere: without this sleep, using
1031 # XenCenter to create a bond that becomes the management interface
1032 # fails with "The underlying connection was closed: A connection that
1033 # was expected to be kept alive was closed by the server." on every
1034 # second or third try, even though /var/log/messages doesn't show
1037 # The race is probably present even without vswitch, but bringing up a
1038 # bond without vswitch involves a built-in pause of 10 seconds or more
1039 # to wait for the bond to transition from learning to forwarding state.
1042 def action_down(pif):
1043 rec = db.get_pif_record(pif)
1044 interface = interface_name(pif)
1045 bridge = bridge_name(pif)
1046 ipdev = ipdev_name(pif)
1048 # Support "rpm -e vswitch" gracefully by keeping Centos configuration
1049 # files up-to-date, even though we don't use them or need them.
1050 f = unconfigure_pif(pif)
1052 br = open_network_ifcfg(pif)
1053 log("Unlinking stale file %s" % br.path())
1060 log("action_down failed to apply changes: %s" % e.msg)
1065 if rec['VLAN'] != '-1':
1066 # Get rid of the VLAN device itself.
1068 argv += interface_deconfigure_commands(ipdev)
1070 # If the VLAN's slave is attached, stop here.
1071 slave = get_vlan_slave_of_pif(pif)
1072 if db.get_pif_record(slave)['currently_attached']:
1073 log("VLAN slave is currently attached")
1077 # If the VLAN's slave has other VLANs that are attached, stop here.
1078 masters = get_vlan_masters_of_pif(slave)
1080 if m != pif and db.get_pif_record(m)['currently_attached']:
1081 log("VLAN slave has other master %s" % interface_naem(m))
1085 # Otherwise, take down the VLAN's slave too.
1086 log("No more masters, bring down vlan slave %s" % interface_name(slave))
1089 # Stop here if this PIF has attached VLAN masters.
1090 vlan_masters = get_vlan_masters_of_pif(pif)
1091 log("VLAN masters of %s - %s" % (rec['device'], [interface_name(m) for m in vlan_masters]))
1092 for m in vlan_masters:
1093 if db.get_pif_record(m)['currently_attached']:
1094 log("Leaving %s up due to currently attached VLAN master %s" % (interface, interface_name(m)))
1097 # pif is now either a bond or a physical device which needs to be
1098 # brought down. pif might have changed so re-check all its attributes.
1099 rec = db.get_pif_record(pif)
1100 interface = interface_name(pif)
1101 bridge = bridge_name(pif)
1102 ipdev = ipdev_name(pif)
1105 bond_slaves = get_bond_slaves_of_pif(pif)
1106 log("bond slaves of %s - %s" % (rec['device'], [interface_name(s) for s in bond_slaves]))
1107 for slave in bond_slaves:
1108 slave_interface = interface_name(slave)
1109 log("bring down bond slave %s" % slave_interface)
1110 argv += interface_deconfigure_commands(slave_interface)
1111 down_netdev(slave_interface)
1113 argv += interface_deconfigure_commands(ipdev)
1116 argv += ['--del-match', 'bridge.%s.*' % datapath_name(pif)]
1117 argv += ['--del-match', 'bonding.%s.[!0-9]*' % interface]
1120 def action_rewrite(pif):
1121 # Support "rpm -e vswitch" gracefully by keeping Centos configuration
1122 # files up-to-date, even though we don't use them or need them.
1123 pifrec = db.get_pif_record(pif)
1124 f = configure_pif(pif)
1125 interface = interface_name(pif)
1126 bridge = bridge_name(pif)
1127 mode = pifrec['ip_configuration_mode']
1129 log("Configuring %s using %s configuration" % (bridge, mode))
1130 br = open_network_ifcfg(pif)
1131 configure_network(pif, br)
1135 log("Configuring %s using %s configuration" % (interface, mode))
1136 configure_network(pif, f)
1142 log("failed to apply changes: %s" % e.msg)
1146 # We have no code of our own to run here.
1149 def main(argv=None):
1150 global output_directory, management_pif
1156 force_interface = None
1157 force_management = False
1165 longops = [ "output-directory=",
1166 "pif=", "pif-uuid=",
1172 "device=", "mode=", "ip=", "netmask=", "gateway=",
1174 arglist, args = getopt.gnu_getopt(argv[1:], shortops, longops)
1175 except getopt.GetoptError, msg:
1178 force_rewrite_config = {}
1181 if o == "--output-directory":
1182 output_directory = a
1185 elif o == "--pif-uuid":
1187 elif o == "--session":
1189 elif o == "--force-interface" or o == "--force":
1191 elif o == "--management":
1192 force_management = True
1193 elif o in ["--device", "--mode", "--ip", "--netmask", "--gateway"]:
1194 force_rewrite_config[o[2:]] = a
1195 elif o == "-h" or o == "--help":
1196 print __doc__ % {'command-name': os.path.basename(argv[0])}
1199 if not debug_mode():
1200 syslog.openlog(os.path.basename(argv[0]))
1201 log("Called as " + str.join(" ", argv))
1203 raise Usage("Required option <action> not present")
1205 raise Usage("Too many arguments")
1208 # backwards compatibility
1209 if action == "rewrite-configuration": action = "rewrite"
1211 if output_directory and ( session or pif ):
1212 raise Usage("--session/--pif cannot be used with --output-directory")
1213 if ( session or pif ) and pif_uuid:
1214 raise Usage("--session/--pif and --pif-uuid are mutually exclusive.")
1215 if ( session and not pif ) or ( not session and pif ):
1216 raise Usage("--session and --pif must be used together.")
1217 if force_interface and ( session or pif or pif_uuid ):
1218 raise Usage("--force is mutually exclusive with --session, --pif and --pif-uuid")
1219 if len(force_rewrite_config) and not (force_interface and action == "rewrite"):
1220 raise Usage("\"--force rewrite\" needed for --device, --mode, --ip, --netmask, and --gateway")
1224 log("Force interface %s %s" % (force_interface, action))
1226 if action == "rewrite":
1227 action_force_rewrite(force_interface, force_rewrite_config)
1229 db = DatabaseCache(cache_file=dbcache_file)
1230 host = db.extras['host']
1231 pif = db.get_pif_by_bridge(host, force_interface)
1232 management_pif = db.get_management_pif(host)
1236 elif action == "down":
1239 raise Usage("Unknown action %s" % action)
1241 db = DatabaseCache(session_ref=session)
1244 pif = db.get_pif_by_uuid(pif_uuid)
1247 raise Usage("No PIF given")
1249 if force_management:
1250 # pif is going to be the management pif
1251 management_pif = pif
1253 # pif is not going to be the management pif.
1254 # Search DB cache for pif on same host with management=true
1255 pifrec = db.get_pif_record(pif)
1256 host = pifrec['host']
1257 management_pif = db.get_management_pif(host)
1259 log_pif_action(action, pif)
1261 if not check_allowed(pif):
1266 elif action == "down":
1268 elif action == "rewrite":
1271 raise Usage("Unknown action %s" % action)
1274 pifrec = db.get_pif_record(pif)
1275 db.save(dbcache_file, {'host': pifrec['host']})
1278 print >>sys.stderr, err.msg
1279 print >>sys.stderr, "For help use --help."
1287 # The following code allows interface-reconfigure to keep Centos
1288 # network configuration files up-to-date, even though the vswitch
1289 # never uses them. In turn, that means that "rpm -e vswitch" does not
1290 # have to update any configuration files.
1292 def configure_ethtool(oc, f):
1293 # Options for "ethtool -s"
1295 setting_opts = ["autoneg", "speed", "duplex"]
1296 # Options for "ethtool -K"
1298 offload_opts = ["rx", "tx", "sg", "tso", "ufo", "gso"]
1300 for opt in [opt for opt in setting_opts + offload_opts if oc.has_key("ethtool-" + opt)]:
1301 val = oc["ethtool-" + opt]
1303 if opt in ["speed"]:
1304 if val in ["10", "100", "1000"]:
1305 val = "speed " + val
1307 log("Invalid value for ethtool-speed = %s. Must be 10|100|1000." % val)
1309 elif opt in ["duplex"]:
1310 if val in ["half", "full"]:
1311 val = "duplex " + val
1313 log("Invalid value for ethtool-duplex = %s. Must be half|full." % val)
1315 elif opt in ["autoneg"] + offload_opts:
1316 if val in ["true", "on"]:
1318 elif val in ["false", "off"]:
1321 log("Invalid value for ethtool-%s = %s. Must be on|true|off|false." % (opt, val))
1324 if opt in setting_opts:
1325 if val and settings:
1326 settings = settings + " " + val
1329 elif opt in offload_opts:
1331 offload = offload + " " + val
1336 f.write("ETHTOOL_OPTS=\"%s\"\n" % settings)
1338 f.write("ETHTOOL_OFFLOAD_OPTS=\"%s\"\n" % offload)
1340 def configure_mtu(oc, f):
1341 if not oc.has_key('mtu'):
1345 mtu = int(oc['mtu'])
1346 f.write("MTU=%d\n" % mtu)
1347 except ValueError, x:
1348 log("Invalid value for mtu = %s" % mtu)
1350 def configure_static_routes(interface, oc, f):
1351 """Open a route-<interface> file for static routes.
1353 Opens the static routes configuration file for interface and writes one
1354 line for each route specified in the network's other config "static-routes" value.
1356 interface ( RO): xenbr1
1357 other-config (MRW): static-routes: 172.16.0.0/15/192.168.0.3,172.18.0.0/16/192.168.0.4;...
1359 Then route-xenbr1 should be
1360 172.16.0.0/15 via 192.168.0.3 dev xenbr1
1361 172.18.0.0/16 via 192.168.0.4 dev xenbr1
1363 fname = "route-%s" % interface
1364 if oc.has_key('static-routes'):
1365 # The key is present - extract comma seperates entries
1366 lines = oc['static-routes'].split(',')
1368 # The key is not present, i.e. there are no static routes
1371 child = ConfigurationFile(fname)
1372 child.write("# DO NOT EDIT: This file (%s) was autogenerated by %s\n" % \
1373 (os.path.basename(child.path()), os.path.basename(sys.argv[0])))
1377 network, masklen, gateway = l.split('/')
1378 child.write("%s/%s via %s dev %s\n" % (network, masklen, gateway, interface))
1380 f.attach_child(child)
1383 except ValueError, e:
1384 log("Error in other-config['static-routes'] format for network %s: %s" % (interface, e))
1386 def __open_ifcfg(interface):
1387 """Open a network interface configuration file.
1389 Opens the configuration file for interface, writes a header and
1390 common options and returns the file object.
1392 fname = "ifcfg-%s" % interface
1393 f = ConfigurationFile(fname)
1395 f.write("# DO NOT EDIT: This file (%s) was autogenerated by %s\n" % \
1396 (os.path.basename(f.path()), os.path.basename(sys.argv[0])))
1397 f.write("XEMANAGED=yes\n")
1398 f.write("DEVICE=%s\n" % interface)
1399 f.write("ONBOOT=no\n")
1403 def open_network_ifcfg(pif):
1404 bridge = bridge_name(pif)
1405 interface = interface_name(pif)
1407 return __open_ifcfg(bridge)
1409 return __open_ifcfg(interface)
1412 def open_pif_ifcfg(pif):
1413 pifrec = db.get_pif_record(pif)
1415 log("Configuring %s (%s)" % (interface_name(pif), pifrec['MAC']))
1417 f = __open_ifcfg(interface_name(pif))
1419 if pifrec.has_key('other_config'):
1420 configure_ethtool(pifrec['other_config'], f)
1421 configure_mtu(pifrec['other_config'], f)
1425 def configure_network(pif, f):
1426 """Write the configuration file for a network.
1428 Writes configuration derived from the network object into the relevant
1429 ifcfg file. The configuration file is passed in, but if the network is
1430 bridgeless it will be ifcfg-<interface>, otherwise it will be ifcfg-<bridge>.
1432 This routine may also write ifcfg files of the networks corresponding to other PIFs
1433 in order to maintain consistency.
1436 pif: Opaque_ref of pif
1437 f : ConfigurationFile(/path/to/ifcfg) to which we append network configuration
1440 pifrec = db.get_pif_record(pif)
1441 host = pifrec['host']
1442 nw = pifrec['network']
1443 nwrec = db.get_network_record(nw)
1445 bridge = bridge_name(pif)
1446 interface = interface_name(pif)
1452 if nwrec.has_key('other_config'):
1453 configure_ethtool(nwrec['other_config'], f)
1454 configure_mtu(nwrec['other_config'], f)
1455 configure_static_routes(device, nwrec['other_config'], f)
1458 if pifrec.has_key('other_config'):
1459 oc = pifrec['other_config']
1461 if device == bridge:
1462 f.write("TYPE=Bridge\n")
1463 f.write("DELAY=0\n")
1464 f.write("STP=off\n")
1465 f.write("PIFDEV=%s\n" % interface_name(pif))
1467 if pifrec['ip_configuration_mode'] == "DHCP":
1468 f.write("BOOTPROTO=dhcp\n")
1469 f.write("PERSISTENT_DHCLIENT=yes\n")
1470 elif pifrec['ip_configuration_mode'] == "Static":
1471 f.write("BOOTPROTO=none\n")
1472 f.write("NETMASK=%(netmask)s\n" % pifrec)
1473 f.write("IPADDR=%(IP)s\n" % pifrec)
1474 f.write("GATEWAY=%(gateway)s\n" % pifrec)
1475 elif pifrec['ip_configuration_mode'] == "None":
1476 f.write("BOOTPROTO=none\n")
1478 raise Error("Unknown ip-configuration-mode %s" % pifrec['ip_configuration_mode'])
1480 if pifrec.has_key('DNS') and pifrec['DNS'] != "":
1481 ServerList = pifrec['DNS'].split(",")
1482 for i in range(len(ServerList)): f.write("DNS%d=%s\n" % (i+1, ServerList[i]))
1483 if oc and oc.has_key('domain'):
1484 f.write("DOMAIN='%s'\n" % oc['domain'].replace(',', ' '))
1486 # We only allow one ifcfg-xenbr* to have PEERDNS=yes and there can be only one GATEWAYDEV in /etc/sysconfig/network.
1487 # The peerdns pif will be the one with pif::other-config:peerdns=true, or the mgmt pif if none have this set.
1488 # The gateway pif will be the one with pif::other-config:defaultroute=true, or the mgmt pif if none have this set.
1490 # Work out which pif on this host should be the one with PEERDNS=yes and which should be the GATEWAYDEV
1492 # Note: we prune out the bond master pif (if it exists).
1493 # This is because when we are called to bring up an interface with a bond master, it is implicit that
1494 # we should bring down that master.
1495 pifs_on_host = [ __pif for __pif in db.get_all_pifs() if
1496 db.get_pif_record(__pif)['host'] == host and
1497 (not __pif in get_bond_masters_of_pif(pif)) ]
1498 other_pifs_on_host = [ __pif for __pif in pifs_on_host if __pif != pif ]
1501 defaultroute_pif = None
1503 # loop through all the pifs on this host looking for one with
1504 # other-config:peerdns = true, and one with
1505 # other-config:default-route=true
1506 for __pif in pifs_on_host:
1507 __pifrec = db.get_pif_record(__pif)
1508 __oc = __pifrec['other_config']
1509 if __oc.has_key('peerdns') and __oc['peerdns'] == 'true':
1510 if peerdns_pif == None:
1513 log('Warning: multiple pifs with "peerdns=true" - choosing %s and ignoring %s' % \
1514 (db.get_pif_record(peerdns_pif)['device'], __pifrec['device']))
1515 if __oc.has_key('defaultroute') and __oc['defaultroute'] == 'true':
1516 if defaultroute_pif == None:
1517 defaultroute_pif = __pif
1519 log('Warning: multiple pifs with "defaultroute=true" - choosing %s and ignoring %s' % \
1520 (db.get_pif_record(defaultroute_pif)['device'], __pifrec['device']))
1522 # If no pif is explicitly specified then use the mgmt pif for peerdns/defaultroute
1523 if peerdns_pif == None:
1524 peerdns_pif = management_pif
1525 if defaultroute_pif == None:
1526 defaultroute_pif = management_pif
1528 # Update all the other network's ifcfg files and ensure consistency
1529 for __pif in other_pifs_on_host:
1530 __f = open_network_ifcfg(__pif)
1531 peerdns_line_wanted = 'PEERDNS=%s\n' % ((__pif == peerdns_pif) and 'yes' or 'no')
1532 lines = __f.readlines()
1534 if not peerdns_line_wanted in lines:
1535 # the PIF selected for DNS has changed and as a result this ifcfg file needs rewriting
1537 if not line.lstrip().startswith('PEERDNS'):
1539 log("Setting %s in %s" % (peerdns_line_wanted.strip(), __f.path()))
1540 __f.write(peerdns_line_wanted)
1545 # There is no need to change this ifcfg file. So don't attach_child.
1548 # ... and for this pif too
1549 f.write('PEERDNS=%s\n' % ((pif == peerdns_pif) and 'yes' or 'no'))
1552 fnetwork = ConfigurationFile("network", "/etc/sysconfig")
1553 for line in fnetwork.readlines():
1554 if line.lstrip().startswith('GATEWAY') :
1556 fnetwork.write(line)
1557 if defaultroute_pif:
1558 gatewaydev = bridge_name(defaultroute_pif)
1560 gatewaydev = interface_name(defaultroute_pif)
1561 fnetwork.write('GATEWAYDEV=%s\n' % gatewaydev)
1563 f.attach_child(fnetwork)
1568 def configure_physical_interface(pif):
1569 """Write the configuration for a physical interface.
1571 Writes the configuration file for the physical interface described by
1574 Returns the open file handle for the interface configuration file.
1577 pifrec = db.get_pif_record(pif)
1579 f = open_pif_ifcfg(pif)
1581 f.write("TYPE=Ethernet\n")
1582 f.write("HWADDR=%(MAC)s\n" % pifrec)
1586 def configure_bond_interface(pif):
1587 """Write the configuration for a bond interface.
1589 Writes the configuration file for the bond interface described by
1590 the pif object. Handles writing the configuration for the slave
1593 Returns the open file handle for the bond interface configuration
1597 pifrec = db.get_pif_record(pif)
1598 oc = pifrec['other_config']
1599 f = open_pif_ifcfg(pif)
1601 if pifrec['MAC'] != "":
1602 f.write("MACADDR=%s\n" % pifrec['MAC'])
1604 for slave in get_bond_slaves_of_pif(pif):
1605 s = configure_physical_interface(slave)
1606 s.write("MASTER=%(device)s\n" % pifrec)
1607 s.write("SLAVE=yes\n")
1611 # The bond option defaults
1613 "mode": "balance-slb",
1620 # override defaults with values from other-config whose keys being with "bond-"
1621 overrides = filter(lambda (key,val): key.startswith("bond-"), oc.items())
1622 overrides = map(lambda (key,val): (key[5:], val), overrides)
1623 bond_options.update(overrides)
1625 # write the bond options to ifcfg-bondX
1626 f.write('BONDING_OPTS="')
1627 for (name,val) in bond_options.items():
1628 f.write("%s=%s " % (name,val))
1632 def configure_vlan_interface(pif):
1633 """Write the configuration for a VLAN interface.
1635 Writes the configuration file for the VLAN interface described by
1636 the pif object. Handles writing the configuration for the master
1637 interface if necessary.
1639 Returns the open file handle for the VLAN interface configuration
1643 slave = configure_pif(get_vlan_slave_of_pif(pif))
1646 f = open_pif_ifcfg(pif)
1647 f.write("VLAN=yes\n")
1648 f.attach_child(slave)
1652 def configure_pif(pif):
1653 """Write the configuration for a PIF object.
1655 Writes the configuration file the PIF and all dependent
1656 interfaces (bond slaves and VLAN masters etc).
1658 Returns the open file handle for the interface configuration file.
1661 pifrec = db.get_pif_record(pif)
1663 if pifrec['VLAN'] != '-1':
1664 f = configure_vlan_interface(pif)
1665 elif len(pifrec['bond_master_of']) != 0:
1666 f = configure_bond_interface(pif)
1668 f = configure_physical_interface(pif)
1670 bridge = bridge_name(pif)
1672 f.write("BRIDGE=%s\n" % bridge)
1676 def unconfigure_pif(pif):
1677 """Clear up the files created by configure_pif"""
1678 f = open_pif_ifcfg(pif)
1679 log("Unlinking stale file %s" % f.path())
1683 if __name__ == "__main__":
1689 err = traceback.format_exception(*ex)
1693 if not debug_mode():