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_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 get_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 get_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 get_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'])
761 oc = pifrec['other_config']
762 if oc.has_key('mtu'):
764 int(oc['mtu']) # Check that the value is an integer
765 ifconfig_argv += ['mtu', oc['mtu']]
766 except ValueError, x:
767 log("Invalid value for mtu = %s" % mtu)
769 run_command(ifconfig_argv)
771 (peerdns_pif, defaultroute_pif) = find_distinguished_pifs(pif)
773 if peerdns_pif == pif:
774 f = ConfigurationFile('resolv.conf', "/etc")
775 if oc.has_key('domain'):
776 f.write("search %s\n" % oc['domain'])
777 for dns in pifrec['DNS'].split(","):
778 f.write("nameserver %s\n" % dns)
783 if defaultroute_pif == pif and gateway != '':
784 run_command(['/sbin/ip', 'route', 'replace', 'default',
785 'via', gateway, 'dev', ipdev])
787 if oc.has_key('static-routes'):
788 for line in oc['static-routes'].split(','):
789 network, masklen, gateway = line.split('/')
790 run_command(['/sbin/ip', 'route', 'add',
791 '%s/%s' % (network, masklen), 'via', gateway,
794 settings, offload = ethtool_settings(oc)
796 run_command(['/sbin/ethtool', '-s', ipdev] + settings)
798 run_command(['/sbin/ethtool', '-K', ipdev] + offload)
800 if pifrec['ip_configuration_mode'] == "DHCP":
802 print "Determining IP information for %s..." % ipdev,
803 argv = ['/sbin/dhclient', '-q',
804 '-lf', '/var/lib/dhclient/dhclient-%s.leases' % ipdev,
805 '-pf', '/var/run/dhclient-%s.pid' % ipdev,
807 if run_command(argv):
812 def modify_config(commands):
813 run_command(['/root/vswitch/bin/ovs-cfg-mod', '-vANY:console:emer',
814 '-F', '/etc/ovs-vswitchd.conf']
816 run_command(['/sbin/service', 'vswitch', 'reload'])
818 def is_bond_pif(pif):
819 pifrec = db.get_pif_record(pif)
820 return len(pifrec['bond_master_of']) != 0
822 def configure_bond(pif):
823 pifrec = db.get_pif_record(pif)
824 interface = interface_name(pif)
825 ipdev = ipdev_name(pif)
826 datapath = datapath_name(pif)
827 physdev_names = get_physdev_names(pif)
829 argv = ['--del-match=bonding.%s.[!0-9]*' % interface]
830 argv += ["--add=bonding.%s.slave=%s" % (interface, slave)
831 for slave in physdev_names]
832 argv += ['--add=bonding.%s.fake-iface=true']
834 if pifrec['MAC'] != "":
835 argv += ['--add=port.%s.mac=%s' % (interface, pifrec['MAC'])]
839 "mode": "balance-slb",
845 # override defaults with values from other-config whose keys
847 oc = pifrec['other_config']
848 overrides = filter(lambda (key,val):
849 key.startswith("bond-"), oc.items())
850 overrides = map(lambda (key,val): (key[5:], val), overrides)
851 bond_options.update(overrides)
852 for (name,val) in bond_options.items():
853 argv += ["--add=bonding.%s.%s=%s" % (interface, name, val)]
857 pifrec = db.get_pif_record(pif)
859 bridge = bridge_name(pif)
860 interface = interface_name(pif)
861 ipdev = ipdev_name(pif)
862 datapath = datapath_name(pif)
863 physdev_pifs = get_physdev_pifs(pif)
864 physdev_names = get_physdev_names(pif)
866 if pifrec['VLAN'] != '-1':
867 vlan_slave = get_vlan_slave_of_pif(pif)
868 if vlan_slave and is_bond_pif(vlan_slave):
869 bond_master = vlan_slave
870 elif is_bond_pif(pif):
875 bond_slaves = get_bond_slaves_of_pif(bond_master)
878 bond_masters = get_bond_masters_of_pif(pif)
880 # Support "rpm -e vswitch" gracefully by keeping Centos configuration
881 # files up-to-date, even though we don't use them or need them.
882 f = configure_pif(pif)
883 mode = pifrec['ip_configuration_mode']
885 log("Configuring %s using %s configuration" % (bridge, mode))
886 br = open_network_ifcfg(pif)
887 configure_network(pif, br)
891 log("Configuring %s using %s configuration" % (interface, mode))
892 configure_network(pif, f)
894 for master in bond_masters:
895 master_bridge = bridge_name(master)
896 removed = unconfigure_pif(master)
897 f.attach_child(removed)
899 removed = open_network_ifcfg(master)
900 log("Unlinking stale file %s" % removed.path())
902 f.attach_child(removed)
904 # /etc/xensource/scripts/vif needs to know where to add VIFs.
906 if not os.path.exists(vswitch_config_dir):
907 os.mkdir(vswitch_config_dir)
908 br = ConfigurationFile("br-%s" % bridge, vswitch_config_dir)
909 br.write("VLAN_SLAVE=%s\n" % datapath)
910 br.write("VLAN_VID=%s\n" % pifrec['VLAN'])
914 # Update all configuration files (both ours and Centos's).
918 # Check the MAC address of each network device and remap if
919 # necessary to make names match our expectations.
920 for physdev_pif in physdev_pifs:
921 remap_pif(physdev_pif)
923 # "ifconfig down" the network device and delete its IP address, etc.
925 for physdev_name in physdev_names:
926 down_netdev(physdev_name)
928 # If we are bringing up a bond, remove IP addresses from the
929 # slaves (because we are implicitly being asked to take them down).
931 # Conversely, if we are bringing up an interface that has bond
932 # masters, remove IP addresses from the bond master (because we
933 # are implicitly being asked to take it down).
934 for bond_pif in bond_slaves + bond_masters:
935 run_command(["/sbin/ifconfig", ipdev_name(bond_pif), '0.0.0.0'])
937 # Remove all keys related to pif and any bond masters linked to PIF.
938 del_ports = [ipdev] + physdev_names + bond_masters
939 if vlan_slave and bond_master:
940 del_ports += [interface_name(bond_master)]
942 # What ports do we need to add to the datapath?
944 # We definitely need the ipdev, and ordinarily we want the
945 # physical devices too, but for bonds we need the bond as bridge
947 add_ports = [ipdev, datapath]
949 add_ports += physdev_names
951 add_ports += [interface_name(bond_master)]
953 # What ports do we need to delete?
955 # - All the ports that we add, to avoid duplication and to drop
956 # them from another datapath in case they're misassigned.
958 # - The physical devices, since they will either be in add_ports
959 # or added to the bonding device (see below).
961 # - The bond masters for pif. (Ordinarily pif shouldn't have any
962 # bond masters. If it does then interface-reconfigure is
963 # implicitly being asked to take them down.)
964 del_ports = add_ports + physdev_names + bond_masters
966 # What networks does this datapath carry?
968 # - The network corresponding to the datapath's PIF.
970 # - The networks corresponding to any VLANs attached to the
973 for nwpif in db.get_pifs_by_record({'device': pifrec['device'],
974 'host': pifrec['host']}):
975 net = db.get_pif_record(nwpif)['network']
976 network_uuids += [db.get_network_record(net)['uuid']]
978 # Bring up bond slaves early, because ovs-vswitchd initially
979 # enables or disables bond slaves based on whether carrier is
980 # detected when they are added, and a network device that is down
981 # always reports "no carrier".
982 bond_slave_physdev_names = []
983 for slave in bond_slaves:
984 bond_slave_physdev_names += physdev_names(slave)
985 for slave_physdev_name in bond_slave_physdev_names:
986 up_netdev(slave_physdev_name)
988 # Now modify the ovs-vswitchd config file.
990 for port in set(del_ports):
991 argv += interface_deconfigure_commands(port)
992 for port in set(add_ports):
993 argv += ['--add=bridge.%s.port=%s' % (datapath, port)]
995 argv += ['--add=vlan.%s.tag=%s' % (ipdev, pifrec['VLAN'])]
996 argv += ['--add=iface.%s.internal=true' % (ipdev)]
998 # xapi creates a bridge by the name of the ipdev and requires
999 # that the IP address will be on it. We need to delete this
1000 # bridge because we need that device to be a member of our
1002 argv += ['--del-match=bridge.%s.[!0-9]*' % ipdev]
1004 # xapi insists that its attempts to create the bridge succeed,
1005 # so force that to happen.
1006 argv += ['--add=iface.%s.fake-bridge=true' % (ipdev)]
1009 os.unlink("%s/br-%s" % (vswitch_config_dir, bridge))
1012 argv += ['--del-match=bridge.%s.xs-network-uuids=*' % datapath]
1013 argv += ['--add=bridge.%s.xs-network-uuids=%s' % (datapath, uuid)
1014 for uuid in set(network_uuids)]
1016 argv += configure_bond(bond_master)
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_name in set(physdev_names) - set(bond_slave_physdev_names):
1024 up_netdev(physdev_name)
1026 # Configure network devices.
1027 configure_netdev(pif)
1029 # Update /etc/issue (which contains the IP address of the management interface)
1030 os.system("/sbin/update-issue")
1033 # There seems to be a race somewhere: without this sleep, using
1034 # XenCenter to create a bond that becomes the management interface
1035 # fails with "The underlying connection was closed: A connection that
1036 # was expected to be kept alive was closed by the server." on every
1037 # second or third try, even though /var/log/messages doesn't show
1040 # The race is probably present even without vswitch, but bringing up a
1041 # bond without vswitch involves a built-in pause of 10 seconds or more
1042 # to wait for the bond to transition from learning to forwarding state.
1045 def action_down(pif):
1046 rec = db.get_pif_record(pif)
1047 interface = interface_name(pif)
1048 bridge = bridge_name(pif)
1049 ipdev = ipdev_name(pif)
1051 # Support "rpm -e vswitch" gracefully by keeping Centos configuration
1052 # files up-to-date, even though we don't use them or need them.
1053 f = unconfigure_pif(pif)
1055 br = open_network_ifcfg(pif)
1056 log("Unlinking stale file %s" % br.path())
1063 log("action_down failed to apply changes: %s" % e.msg)
1068 if rec['VLAN'] != '-1':
1069 # Get rid of the VLAN device itself.
1071 argv += interface_deconfigure_commands(ipdev)
1073 # If the VLAN's slave is attached, stop here.
1074 slave = get_vlan_slave_of_pif(pif)
1075 if db.get_pif_record(slave)['currently_attached']:
1076 log("VLAN slave is currently attached")
1080 # If the VLAN's slave has other VLANs that are attached, stop here.
1081 masters = get_vlan_masters_of_pif(slave)
1083 if m != pif and db.get_pif_record(m)['currently_attached']:
1084 log("VLAN slave has other master %s" % interface_naem(m))
1088 # Otherwise, take down the VLAN's slave too.
1089 log("No more masters, bring down vlan slave %s" % interface_name(slave))
1092 # Stop here if this PIF has attached VLAN masters.
1093 vlan_masters = get_vlan_masters_of_pif(pif)
1094 log("VLAN masters of %s - %s" % (rec['device'], [interface_name(m) for m in vlan_masters]))
1095 for m in vlan_masters:
1096 if db.get_pif_record(m)['currently_attached']:
1097 log("Leaving %s up due to currently attached VLAN master %s" % (interface, interface_name(m)))
1100 # pif is now either a bond or a physical device which needs to be
1101 # brought down. pif might have changed so re-check all its attributes.
1102 rec = db.get_pif_record(pif)
1103 interface = interface_name(pif)
1104 bridge = bridge_name(pif)
1105 ipdev = ipdev_name(pif)
1108 bond_slaves = get_bond_slaves_of_pif(pif)
1109 log("bond slaves of %s - %s" % (rec['device'], [interface_name(s) for s in bond_slaves]))
1110 for slave in bond_slaves:
1111 slave_interface = interface_name(slave)
1112 log("bring down bond slave %s" % slave_interface)
1113 argv += interface_deconfigure_commands(slave_interface)
1114 down_netdev(slave_interface)
1116 argv += interface_deconfigure_commands(ipdev)
1119 argv += ['--del-match', 'bridge.%s.*' % datapath_name(pif)]
1120 argv += ['--del-match', 'bonding.%s.[!0-9]*' % interface]
1123 def action_rewrite(pif):
1124 # Support "rpm -e vswitch" gracefully by keeping Centos configuration
1125 # files up-to-date, even though we don't use them or need them.
1126 pifrec = db.get_pif_record(pif)
1127 f = configure_pif(pif)
1128 interface = interface_name(pif)
1129 bridge = bridge_name(pif)
1130 mode = pifrec['ip_configuration_mode']
1132 log("Configuring %s using %s configuration" % (bridge, mode))
1133 br = open_network_ifcfg(pif)
1134 configure_network(pif, br)
1138 log("Configuring %s using %s configuration" % (interface, mode))
1139 configure_network(pif, f)
1145 log("failed to apply changes: %s" % e.msg)
1149 # We have no code of our own to run here.
1152 def main(argv=None):
1153 global output_directory, management_pif
1159 force_interface = None
1160 force_management = False
1168 longops = [ "output-directory=",
1169 "pif=", "pif-uuid=",
1175 "device=", "mode=", "ip=", "netmask=", "gateway=",
1177 arglist, args = getopt.gnu_getopt(argv[1:], shortops, longops)
1178 except getopt.GetoptError, msg:
1181 force_rewrite_config = {}
1184 if o == "--output-directory":
1185 output_directory = a
1188 elif o == "--pif-uuid":
1190 elif o == "--session":
1192 elif o == "--force-interface" or o == "--force":
1194 elif o == "--management":
1195 force_management = True
1196 elif o in ["--device", "--mode", "--ip", "--netmask", "--gateway"]:
1197 force_rewrite_config[o[2:]] = a
1198 elif o == "-h" or o == "--help":
1199 print __doc__ % {'command-name': os.path.basename(argv[0])}
1202 if not debug_mode():
1203 syslog.openlog(os.path.basename(argv[0]))
1204 log("Called as " + str.join(" ", argv))
1206 raise Usage("Required option <action> not present")
1208 raise Usage("Too many arguments")
1211 # backwards compatibility
1212 if action == "rewrite-configuration": action = "rewrite"
1214 if output_directory and ( session or pif ):
1215 raise Usage("--session/--pif cannot be used with --output-directory")
1216 if ( session or pif ) and pif_uuid:
1217 raise Usage("--session/--pif and --pif-uuid are mutually exclusive.")
1218 if ( session and not pif ) or ( not session and pif ):
1219 raise Usage("--session and --pif must be used together.")
1220 if force_interface and ( session or pif or pif_uuid ):
1221 raise Usage("--force is mutually exclusive with --session, --pif and --pif-uuid")
1222 if len(force_rewrite_config) and not (force_interface and action == "rewrite"):
1223 raise Usage("\"--force rewrite\" needed for --device, --mode, --ip, --netmask, and --gateway")
1227 log("Force interface %s %s" % (force_interface, action))
1229 if action == "rewrite":
1230 action_force_rewrite(force_interface, force_rewrite_config)
1232 db = DatabaseCache(cache_file=dbcache_file)
1233 host = db.extras['host']
1234 pif = db.get_pif_by_bridge(host, force_interface)
1235 management_pif = db.get_management_pif(host)
1239 elif action == "down":
1242 raise Usage("Unknown action %s" % action)
1244 db = DatabaseCache(session_ref=session)
1247 pif = db.get_pif_by_uuid(pif_uuid)
1250 raise Usage("No PIF given")
1252 if force_management:
1253 # pif is going to be the management pif
1254 management_pif = pif
1256 # pif is not going to be the management pif.
1257 # Search DB cache for pif on same host with management=true
1258 pifrec = db.get_pif_record(pif)
1259 host = pifrec['host']
1260 management_pif = db.get_management_pif(host)
1262 log_pif_action(action, pif)
1264 if not check_allowed(pif):
1269 elif action == "down":
1271 elif action == "rewrite":
1274 raise Usage("Unknown action %s" % action)
1277 pifrec = db.get_pif_record(pif)
1278 db.save(dbcache_file, {'host': pifrec['host']})
1281 print >>sys.stderr, err.msg
1282 print >>sys.stderr, "For help use --help."
1290 # The following code allows interface-reconfigure to keep Centos
1291 # network configuration files up-to-date, even though the vswitch
1292 # never uses them. In turn, that means that "rpm -e vswitch" does not
1293 # have to update any configuration files.
1295 def configure_ethtool(oc, f):
1296 # Options for "ethtool -s"
1298 setting_opts = ["autoneg", "speed", "duplex"]
1299 # Options for "ethtool -K"
1301 offload_opts = ["rx", "tx", "sg", "tso", "ufo", "gso"]
1303 for opt in [opt for opt in setting_opts + offload_opts if oc.has_key("ethtool-" + opt)]:
1304 val = oc["ethtool-" + opt]
1306 if opt in ["speed"]:
1307 if val in ["10", "100", "1000"]:
1308 val = "speed " + val
1310 log("Invalid value for ethtool-speed = %s. Must be 10|100|1000." % val)
1312 elif opt in ["duplex"]:
1313 if val in ["half", "full"]:
1314 val = "duplex " + val
1316 log("Invalid value for ethtool-duplex = %s. Must be half|full." % val)
1318 elif opt in ["autoneg"] + offload_opts:
1319 if val in ["true", "on"]:
1321 elif val in ["false", "off"]:
1324 log("Invalid value for ethtool-%s = %s. Must be on|true|off|false." % (opt, val))
1327 if opt in setting_opts:
1328 if val and settings:
1329 settings = settings + " " + val
1332 elif opt in offload_opts:
1334 offload = offload + " " + val
1339 f.write("ETHTOOL_OPTS=\"%s\"\n" % settings)
1341 f.write("ETHTOOL_OFFLOAD_OPTS=\"%s\"\n" % offload)
1343 def configure_mtu(oc, f):
1344 if not oc.has_key('mtu'):
1348 mtu = int(oc['mtu'])
1349 f.write("MTU=%d\n" % mtu)
1350 except ValueError, x:
1351 log("Invalid value for mtu = %s" % mtu)
1353 def configure_static_routes(interface, oc, f):
1354 """Open a route-<interface> file for static routes.
1356 Opens the static routes configuration file for interface and writes one
1357 line for each route specified in the network's other config "static-routes" value.
1359 interface ( RO): xenbr1
1360 other-config (MRW): static-routes: 172.16.0.0/15/192.168.0.3,172.18.0.0/16/192.168.0.4;...
1362 Then route-xenbr1 should be
1363 172.16.0.0/15 via 192.168.0.3 dev xenbr1
1364 172.18.0.0/16 via 192.168.0.4 dev xenbr1
1366 fname = "route-%s" % interface
1367 if oc.has_key('static-routes'):
1368 # The key is present - extract comma seperates entries
1369 lines = oc['static-routes'].split(',')
1371 # The key is not present, i.e. there are no static routes
1374 child = ConfigurationFile(fname)
1375 child.write("# DO NOT EDIT: This file (%s) was autogenerated by %s\n" % \
1376 (os.path.basename(child.path()), os.path.basename(sys.argv[0])))
1380 network, masklen, gateway = l.split('/')
1381 child.write("%s/%s via %s dev %s\n" % (network, masklen, gateway, interface))
1383 f.attach_child(child)
1386 except ValueError, e:
1387 log("Error in other-config['static-routes'] format for network %s: %s" % (interface, e))
1389 def __open_ifcfg(interface):
1390 """Open a network interface configuration file.
1392 Opens the configuration file for interface, writes a header and
1393 common options and returns the file object.
1395 fname = "ifcfg-%s" % interface
1396 f = ConfigurationFile(fname)
1398 f.write("# DO NOT EDIT: This file (%s) was autogenerated by %s\n" % \
1399 (os.path.basename(f.path()), os.path.basename(sys.argv[0])))
1400 f.write("XEMANAGED=yes\n")
1401 f.write("DEVICE=%s\n" % interface)
1402 f.write("ONBOOT=no\n")
1406 def open_network_ifcfg(pif):
1407 bridge = bridge_name(pif)
1408 interface = interface_name(pif)
1410 return __open_ifcfg(bridge)
1412 return __open_ifcfg(interface)
1415 def open_pif_ifcfg(pif):
1416 pifrec = db.get_pif_record(pif)
1418 log("Configuring %s (%s)" % (interface_name(pif), pifrec['MAC']))
1420 f = __open_ifcfg(interface_name(pif))
1422 if pifrec.has_key('other_config'):
1423 configure_ethtool(pifrec['other_config'], f)
1424 configure_mtu(pifrec['other_config'], f)
1428 def configure_network(pif, f):
1429 """Write the configuration file for a network.
1431 Writes configuration derived from the network object into the relevant
1432 ifcfg file. The configuration file is passed in, but if the network is
1433 bridgeless it will be ifcfg-<interface>, otherwise it will be ifcfg-<bridge>.
1435 This routine may also write ifcfg files of the networks corresponding to other PIFs
1436 in order to maintain consistency.
1439 pif: Opaque_ref of pif
1440 f : ConfigurationFile(/path/to/ifcfg) to which we append network configuration
1443 pifrec = db.get_pif_record(pif)
1444 host = pifrec['host']
1445 nw = pifrec['network']
1446 nwrec = db.get_network_record(nw)
1448 bridge = bridge_name(pif)
1449 interface = interface_name(pif)
1455 if nwrec.has_key('other_config'):
1456 configure_ethtool(nwrec['other_config'], f)
1457 configure_mtu(nwrec['other_config'], f)
1458 configure_static_routes(device, nwrec['other_config'], f)
1461 if pifrec.has_key('other_config'):
1462 oc = pifrec['other_config']
1464 if device == bridge:
1465 f.write("TYPE=Bridge\n")
1466 f.write("DELAY=0\n")
1467 f.write("STP=off\n")
1468 f.write("PIFDEV=%s\n" % interface_name(pif))
1470 if pifrec['ip_configuration_mode'] == "DHCP":
1471 f.write("BOOTPROTO=dhcp\n")
1472 f.write("PERSISTENT_DHCLIENT=yes\n")
1473 elif pifrec['ip_configuration_mode'] == "Static":
1474 f.write("BOOTPROTO=none\n")
1475 f.write("NETMASK=%(netmask)s\n" % pifrec)
1476 f.write("IPADDR=%(IP)s\n" % pifrec)
1477 f.write("GATEWAY=%(gateway)s\n" % pifrec)
1478 elif pifrec['ip_configuration_mode'] == "None":
1479 f.write("BOOTPROTO=none\n")
1481 raise Error("Unknown ip-configuration-mode %s" % pifrec['ip_configuration_mode'])
1483 if pifrec.has_key('DNS') and pifrec['DNS'] != "":
1484 ServerList = pifrec['DNS'].split(",")
1485 for i in range(len(ServerList)): f.write("DNS%d=%s\n" % (i+1, ServerList[i]))
1486 if oc and oc.has_key('domain'):
1487 f.write("DOMAIN='%s'\n" % oc['domain'].replace(',', ' '))
1489 # We only allow one ifcfg-xenbr* to have PEERDNS=yes and there can be only one GATEWAYDEV in /etc/sysconfig/network.
1490 # The peerdns pif will be the one with pif::other-config:peerdns=true, or the mgmt pif if none have this set.
1491 # The gateway pif will be the one with pif::other-config:defaultroute=true, or the mgmt pif if none have this set.
1493 # Work out which pif on this host should be the one with PEERDNS=yes and which should be the GATEWAYDEV
1495 # Note: we prune out the bond master pif (if it exists).
1496 # This is because when we are called to bring up an interface with a bond master, it is implicit that
1497 # we should bring down that master.
1498 pifs_on_host = [ __pif for __pif in db.get_all_pifs() if
1499 db.get_pif_record(__pif)['host'] == host and
1500 (not __pif in get_bond_masters_of_pif(pif)) ]
1501 other_pifs_on_host = [ __pif for __pif in pifs_on_host if __pif != pif ]
1504 defaultroute_pif = None
1506 # loop through all the pifs on this host looking for one with
1507 # other-config:peerdns = true, and one with
1508 # other-config:default-route=true
1509 for __pif in pifs_on_host:
1510 __pifrec = db.get_pif_record(__pif)
1511 __oc = __pifrec['other_config']
1512 if __oc.has_key('peerdns') and __oc['peerdns'] == 'true':
1513 if peerdns_pif == None:
1516 log('Warning: multiple pifs with "peerdns=true" - choosing %s and ignoring %s' % \
1517 (db.get_pif_record(peerdns_pif)['device'], __pifrec['device']))
1518 if __oc.has_key('defaultroute') and __oc['defaultroute'] == 'true':
1519 if defaultroute_pif == None:
1520 defaultroute_pif = __pif
1522 log('Warning: multiple pifs with "defaultroute=true" - choosing %s and ignoring %s' % \
1523 (db.get_pif_record(defaultroute_pif)['device'], __pifrec['device']))
1525 # If no pif is explicitly specified then use the mgmt pif for peerdns/defaultroute
1526 if peerdns_pif == None:
1527 peerdns_pif = management_pif
1528 if defaultroute_pif == None:
1529 defaultroute_pif = management_pif
1531 # Update all the other network's ifcfg files and ensure consistency
1532 for __pif in other_pifs_on_host:
1533 __f = open_network_ifcfg(__pif)
1534 peerdns_line_wanted = 'PEERDNS=%s\n' % ((__pif == peerdns_pif) and 'yes' or 'no')
1535 lines = __f.readlines()
1537 if not peerdns_line_wanted in lines:
1538 # the PIF selected for DNS has changed and as a result this ifcfg file needs rewriting
1540 if not line.lstrip().startswith('PEERDNS'):
1542 log("Setting %s in %s" % (peerdns_line_wanted.strip(), __f.path()))
1543 __f.write(peerdns_line_wanted)
1548 # There is no need to change this ifcfg file. So don't attach_child.
1551 # ... and for this pif too
1552 f.write('PEERDNS=%s\n' % ((pif == peerdns_pif) and 'yes' or 'no'))
1555 fnetwork = ConfigurationFile("network", "/etc/sysconfig")
1556 for line in fnetwork.readlines():
1557 if line.lstrip().startswith('GATEWAY') :
1559 fnetwork.write(line)
1560 if defaultroute_pif:
1561 gatewaydev = bridge_name(defaultroute_pif)
1563 gatewaydev = interface_name(defaultroute_pif)
1564 fnetwork.write('GATEWAYDEV=%s\n' % gatewaydev)
1566 f.attach_child(fnetwork)
1571 def configure_physical_interface(pif):
1572 """Write the configuration for a physical interface.
1574 Writes the configuration file for the physical interface described by
1577 Returns the open file handle for the interface configuration file.
1580 pifrec = db.get_pif_record(pif)
1582 f = open_pif_ifcfg(pif)
1584 f.write("TYPE=Ethernet\n")
1585 f.write("HWADDR=%(MAC)s\n" % pifrec)
1589 def configure_bond_interface(pif):
1590 """Write the configuration for a bond interface.
1592 Writes the configuration file for the bond interface described by
1593 the pif object. Handles writing the configuration for the slave
1596 Returns the open file handle for the bond interface configuration
1600 pifrec = db.get_pif_record(pif)
1601 oc = pifrec['other_config']
1602 f = open_pif_ifcfg(pif)
1604 if pifrec['MAC'] != "":
1605 f.write("MACADDR=%s\n" % pifrec['MAC'])
1607 for slave in get_bond_slaves_of_pif(pif):
1608 s = configure_physical_interface(slave)
1609 s.write("MASTER=%(device)s\n" % pifrec)
1610 s.write("SLAVE=yes\n")
1614 # The bond option defaults
1616 "mode": "balance-slb",
1623 # override defaults with values from other-config whose keys being with "bond-"
1624 overrides = filter(lambda (key,val): key.startswith("bond-"), oc.items())
1625 overrides = map(lambda (key,val): (key[5:], val), overrides)
1626 bond_options.update(overrides)
1628 # write the bond options to ifcfg-bondX
1629 f.write('BONDING_OPTS="')
1630 for (name,val) in bond_options.items():
1631 f.write("%s=%s " % (name,val))
1635 def configure_vlan_interface(pif):
1636 """Write the configuration for a VLAN interface.
1638 Writes the configuration file for the VLAN interface described by
1639 the pif object. Handles writing the configuration for the master
1640 interface if necessary.
1642 Returns the open file handle for the VLAN interface configuration
1646 slave = configure_pif(get_vlan_slave_of_pif(pif))
1649 f = open_pif_ifcfg(pif)
1650 f.write("VLAN=yes\n")
1651 f.attach_child(slave)
1655 def configure_pif(pif):
1656 """Write the configuration for a PIF object.
1658 Writes the configuration file the PIF and all dependent
1659 interfaces (bond slaves and VLAN masters etc).
1661 Returns the open file handle for the interface configuration file.
1664 pifrec = db.get_pif_record(pif)
1666 if pifrec['VLAN'] != '-1':
1667 f = configure_vlan_interface(pif)
1668 elif len(pifrec['bond_master_of']) != 0:
1669 f = configure_bond_interface(pif)
1671 f = configure_physical_interface(pif)
1673 bridge = bridge_name(pif)
1675 f.write("BRIDGE=%s\n" % bridge)
1679 def unconfigure_pif(pif):
1680 """Clear up the files created by configure_pif"""
1681 f = open_pif_ifcfg(pif)
1682 log("Unlinking stale file %s" % f.path())
1686 if __name__ == "__main__":
1692 err = traceback.format_exception(*ex)
1696 if not debug_mode():