def delete(self):
log.info("Deleting vnet %s", self.id)
Brctl.vif_bridge_rem({'bridge': self.bridge, 'vif': self.vnetif})
Brctl.bridge_del(self.bridge)
val = vnet_cmd(['vnet.del', self.id])
xstransact.Remove(self.dbpath)
return val
def delete(self):
log.info("Deleting vnet %s", self.id)
Brctl.vif_bridge_rem({'bridge': self.bridge, 'vif': self.vnetif})
Brctl.bridge_del(self.bridge)
val = vnet_cmd(['vnet.del', self.id])
xstransact.Remove(self.dbpath)
return val
def unplug(self):
"""Unplug the PIF from the network"""
network = XendAPIStore.get(self.network, "network")
bridge_name = network.get_name_label()
from xen.util import Brctl
Brctl.vif_bridge_rem({"bridge": bridge_name, "vif": self.get_interface_name()})
def unplug(self):
"""Unplug the PIF from the network"""
network = XendAPIStore.get(self.network, "network")
bridge_name = network.get_name_label()
from xen.util import Brctl
Brctl.vif_bridge_rem({
"bridge": bridge_name,
"vif": self.get_interface_name()
})
def destroy(self):
# check no VIFs or PIFs attached
if len(self.get_VIFs()) > 0:
raise NetworkError("Cannot destroy network with VIFs attached",
self.get_name_label())
if len(self.get_PIFs()) > 0:
raise NetworkError("Cannot destroy network with PIFs attached",
self.get_name_label())
XendBase.destroy(self)
Brctl.bridge_del(self.get_name_label())
XendNode.instance().save_networks()
def destroy(self):
# check no VIFs or PIFs attached
if len(self.get_VIFs()) > 0:
raise NetworkError("Cannot destroy network with VIFs attached",
self.get_name_label())
if len(self.get_PIFs()) > 0:
raise NetworkError("Cannot destroy network with PIFs attached",
self.get_name_label())
XendBase.destroy(self)
Brctl.bridge_del(self.get_name_label())
XendNode.instance().save_networks()
def _init_networks(self):
# Initialise networks
# First configure ones off disk
saved_networks = self.state_store.load_state('network')
if saved_networks:
for net_uuid, network in saved_networks.items():
try:
XendNetwork.recreate(network, net_uuid)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating network %s", net_uuid)
# Next discover any existing bridges and check
# they are not already configured
# 'tmpbridge' is a temporary bridge created by network-bridge script.
# Wait a couple of seconds for it to be renamed.
for i in xrange(20):
bridges = Brctl.get_state().keys()
if 'tmpbridge' in bridges:
time.sleep(0.1)
else:
break
configured_bridges = [
XendAPIStore.get(network_uuid, "network").get_name_label()
for network_uuid in XendNetwork.get_all()
]
unconfigured_bridges = [
bridge for bridge in bridges if bridge not in configured_bridges
]
for unconfigured_bridge in unconfigured_bridges:
if unconfigured_bridge != 'tmpbridge':
XendNetwork.create_phy(unconfigured_bridge)
def _init_networks(self):
# Initialise networks
# First configure ones off disk
saved_networks = self.state_store.load_state('network')
if saved_networks:
for net_uuid, network in saved_networks.items():
try:
XendNetwork.recreate(network, net_uuid)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating network %s", net_uuid)
# Next discover any existing bridges and check
# they are not already configured
# 'tmpbridge' is a temporary bridge created by network-bridge script.
# Wait a couple of seconds for it to be renamed.
for i in xrange(20):
bridges = Brctl.get_state().keys()
if 'tmpbridge' in bridges:
time.sleep(0.1)
else:
break
configured_bridges = [XendAPIStore.get(
network_uuid, "network")
.get_name_label()
for network_uuid in XendNetwork.get_all()]
unconfigured_bridges = [bridge
for bridge in bridges
if bridge not in configured_bridges]
for unconfigured_bridge in unconfigured_bridges:
if unconfigured_bridge != 'tmpbridge':
XendNetwork.create_phy(unconfigured_bridge)
def recreate(self, record, uuid):
"""
Called on xend start / restart, or machine
restart, when read from saved config.
Needs to check network exists, create it otherwise
"""
# Create instance (do this first, to check record)
network = XendNetwork(record, uuid)
# Create network if it doesn't already exist
if not bridge_exists(network.name_label):
if network.managed:
Brctl.bridge_create(network.name_label)
else:
log.info("Not recreating missing unmanaged network %s" % network.name_label)
return uuid
def recreate(self, record, uuid):
"""
Called on xend start / restart, or machine
restart, when read from saved config.
Needs to check network exists, create it otherwise
"""
# Create instance (do this first, to check record)
network = XendNetwork(record, uuid)
# Create network if it doesn't already exist
if not bridge_exists(network.name_label):
if network.managed:
Brctl.bridge_create(network.name_label)
else:
log.info("Not recreating missing unmanaged network %s" %
network.name_label)
return uuid
def create(self, record):
"""
Called from API, to create a new network
"""
# Create new uuids
uuid = genuuid.createString()
# Create instance (do this first, to check record)
network = XendNetwork(record, uuid)
# Check network doesn't already exist
name_label = network.name_label
if bridge_exists(name_label):
del network
raise UniqueNameError(name_label, "network")
# Create the bridge
Brctl.bridge_create(network.name_label)
XendNode.instance().save_networks()
return uuid
def create(self, record):
"""
Called from API, to create a new network
"""
# Create new uuids
uuid = genuuid.createString()
# Create instance (do this first, to check record)
network = XendNetwork(record, uuid)
# Check network doesn't already exist
name_label = network.name_label
if bridge_exists(name_label):
del network
raise UniqueNameError(name_label, "network")
# Create the bridge
Brctl.bridge_create(network.name_label)
XendNode.instance().save_networks()
return uuid
def _init_PIFs(self):
# Initialise PIFs
# First configure ones off disk
saved_pifs = self.state_store.load_state('pif')
if saved_pifs:
for pif_uuid, pif in saved_pifs.items():
try:
XendPIF.recreate(pif, pif_uuid)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating PIF %s", pif_uuid)
# Next discover any existing PIFs and check
# they are not already configured
configured_pifs = [XendAPIStore.get(
pif_uuid, "PIF")
.get_interface_name()
for pif_uuid in XendPIF.get_all()]
unconfigured_pifs = [(name, mtu, mac)
for name, mtu, mac in linux_get_phy_ifaces()
if name not in configured_pifs]
# Get a mapping from interface to bridge
if_to_br = dict([(i,b)
for (b,ifs) in Brctl.get_state().items()
for i in ifs])
for name, mtu, mac in unconfigured_pifs:
# Check PIF is on bridge
# if not, ignore
bridge_name = if_to_br.get(name, None)
if bridge_name is not None:
# Translate bridge name to network uuid
for network_uuid in XendNetwork.get_all():
network = XendAPIStore.get(
network_uuid, 'network')
if network.get_name_label() == bridge_name:
XendPIF.create_phy(network_uuid, name,
mac, mtu)
break
else:
log.debug("Cannot find network for bridge %s "
"when configuring PIF %s",
(bridge_name, name))
def _init_PIFs(self):
# Initialise PIFs
# First configure ones off disk
saved_pifs = self.state_store.load_state('pif')
if saved_pifs:
for pif_uuid, pif in saved_pifs.items():
try:
XendPIF.recreate(pif, pif_uuid)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating PIF %s", pif_uuid)
# Next discover any existing PIFs and check
# they are not already configured
configured_pifs = [
XendAPIStore.get(pif_uuid, "PIF").get_interface_name()
for pif_uuid in XendPIF.get_all()
]
unconfigured_pifs = [(name, mtu, mac)
for name, mtu, mac in linux_get_phy_ifaces()
if name not in configured_pifs]
# Get a mapping from interface to bridge
if_to_br = dict([(i, b) for (b, ifs) in Brctl.get_state().items()
for i in ifs])
for name, mtu, mac in unconfigured_pifs:
# Check PIF is on bridge
# if not, ignore
bridge_name = if_to_br.get(name, None)
if bridge_name is not None:
# Translate bridge name to network uuid
for network_uuid in XendNetwork.get_all():
network = XendAPIStore.get(network_uuid, 'network')
if network.get_name_label() == bridge_name:
XendPIF.create_phy(network_uuid, name, mac, mtu)
break
else:
log.debug(
"Cannot find network for bridge %s "
"when configuring PIF %s", (bridge_name, name))
def configure(self):
log.info("Configuring vnet %s", self.id)
val = vnet_cmd(['vnet.add'] + sxp.children(self.config))
Brctl.bridge_create(self.bridge)
Brctl.vif_bridge_add({'bridge': self.bridge, 'vif': self.vnetif})
return val
def bridge_exists(name):
return name in Brctl.get_state().keys()
def __init__(self):
"""Initalises the state of all host specific objects such as
* host
* host_CPU
* host_metrics
* PIF
* PIF_metrics
* network
* Storage Repository
* PPCI
"""
self.xc = xen.lowlevel.xc.xc()
self.state_store = XendStateStore(xendoptions().get_xend_state_path())
self.monitor = XendMonitor()
self.monitor.start()
# load host state from XML file
saved_host = self.state_store.load_state('host')
if saved_host and len(saved_host.keys()) == 1:
self.uuid = saved_host.keys()[0]
host = saved_host[self.uuid]
self.name = host.get('name_label', socket.gethostname())
self.desc = host.get('name_description', '')
self.host_metrics_uuid = host.get('metrics_uuid',
uuid.createString())
try:
self.other_config = eval(host['other_config'])
except:
self.other_config = {}
self.cpus = {}
else:
self.uuid = uuid.createString()
self.name = socket.gethostname()
self.desc = ''
self.other_config = {}
self.cpus = {}
self.host_metrics_uuid = uuid.createString()
# put some arbitrary params in other_config as this
# is directly exposed via XenAPI
self.other_config["xen_pagesize"] = self.xeninfo_dict()["xen_pagesize"]
self.other_config["platform_params"] = self.xeninfo_dict(
)["platform_params"]
# load CPU UUIDs
saved_cpus = self.state_store.load_state('cpu')
for cpu_uuid, cpu in saved_cpus.items():
self.cpus[cpu_uuid] = cpu
cpuinfo = osdep.get_cpuinfo()
physinfo = self.physinfo_dict()
cpu_count = physinfo['nr_cpus']
cpu_features = physinfo['hw_caps']
virt_caps = physinfo['virt_caps']
# If the number of CPUs don't match, we should just reinitialise
# the CPU UUIDs.
if cpu_count != len(self.cpus):
self.cpus = {}
for i in range(cpu_count):
u = uuid.createString()
self.cpus[u] = {'uuid': u, 'number': i}
for u in self.cpus.keys():
number = self.cpus[u]['number']
# We can run off the end of the cpuinfo list if domain0 does not
# have #vcpus == #pcpus. In that case we just replicate one that's
# in the hash table.
if not cpuinfo.has_key(number):
number = cpuinfo.keys()[0]
if arch.type == "x86":
self.cpus[u].update({
'host':
self.uuid,
'features':
cpu_features,
'virt_caps':
virt_caps,
'speed':
int(float(cpuinfo[number]['cpu MHz'])),
'vendor':
cpuinfo[number]['vendor_id'],
'modelname':
cpuinfo[number]['model name'],
'stepping':
cpuinfo[number]['stepping'],
'flags':
cpuinfo[number]['flags'],
})
elif arch.type == "ia64":
self.cpus[u].update({
'host':
self.uuid,
'features':
cpu_features,
'speed':
int(float(cpuinfo[number]['cpu MHz'])),
'vendor':
cpuinfo[number]['vendor'],
'modelname':
cpuinfo[number]['family'],
'stepping':
cpuinfo[number]['model'],
'flags':
cpuinfo[number]['features'],
})
else:
self.cpus[u].update({
'host': self.uuid,
'features': cpu_features,
})
self.srs = {}
# Initialise networks
# First configure ones off disk
saved_networks = self.state_store.load_state('network')
if saved_networks:
for net_uuid, network in saved_networks.items():
try:
XendNetwork.recreate(network, net_uuid)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating network %s", net_uuid)
# Next discover any existing bridges and check
# they are not already configured
bridges = Brctl.get_state().keys()
configured_bridges = [
XendAPIStore.get(network_uuid, "network").get_name_label()
for network_uuid in XendNetwork.get_all()
]
unconfigured_bridges = [
bridge for bridge in bridges if bridge not in configured_bridges
]
for unconfigured_bridge in unconfigured_bridges:
XendNetwork.create_phy(unconfigured_bridge)
# Initialise PIFs
# First configure ones off disk
saved_pifs = self.state_store.load_state('pif')
if saved_pifs:
for pif_uuid, pif in saved_pifs.items():
try:
XendPIF.recreate(pif, pif_uuid)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating PIF %s", pif_uuid)
# Next discover any existing PIFs and check
# they are not already configured
configured_pifs = [
XendAPIStore.get(pif_uuid, "PIF").get_interface_name()
for pif_uuid in XendPIF.get_all()
]
unconfigured_pifs = [(name, mtu, mac)
for name, mtu, mac in linux_get_phy_ifaces()
if name not in configured_pifs]
# Get a mapping from interface to bridge
if_to_br = dict([(i, b) for (b, ifs) in Brctl.get_state().items()
for i in ifs])
for name, mtu, mac in unconfigured_pifs:
# Check PIF is on bridge
# if not, ignore
bridge_name = if_to_br.get(name, None)
if bridge_name is not None:
# Translate bridge name to network uuid
for network_uuid in XendNetwork.get_all():
network = XendAPIStore.get(network_uuid, 'network')
if network.get_name_label() == bridge_name:
XendPIF.create_phy(network_uuid, name, mac, mtu)
break
else:
log.debug(
"Cannot find network for bridge %s "
"when configuring PIF %s", (bridge_name, name))
# initialise storage
saved_srs = self.state_store.load_state('sr')
if saved_srs:
for sr_uuid, sr_cfg in saved_srs.items():
if sr_cfg['type'] == 'qcow_file':
self.srs[sr_uuid] = XendQCoWStorageRepo(sr_uuid)
elif sr_cfg['type'] == 'local':
self.srs[sr_uuid] = XendLocalStorageRepo(sr_uuid)
# Create missing SRs if they don't exist
if not self.get_sr_by_type('local'):
image_sr_uuid = uuid.createString()
self.srs[image_sr_uuid] = XendLocalStorageRepo(image_sr_uuid)
if not self.get_sr_by_type('qcow_file'):
qcow_sr_uuid = uuid.createString()
self.srs[qcow_sr_uuid] = XendQCoWStorageRepo(qcow_sr_uuid)
saved_pbds = self.state_store.load_state('pbd')
if saved_pbds:
for pbd_uuid, pbd_cfg in saved_pbds.items():
try:
XendPBD.recreate(pbd_uuid, pbd_cfg)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating PBD %s", pbd_uuid)
# Initialise PPCIs
saved_ppcis = self.state_store.load_state('ppci')
saved_ppci_table = {}
if saved_ppcis:
for ppci_uuid, ppci_record in saved_ppcis.items():
try:
saved_ppci_table[ppci_record['name']] = ppci_uuid
except KeyError:
pass
for pci_dev in PciUtil.get_all_pci_devices():
ppci_record = {
'domain': pci_dev.domain,
'bus': pci_dev.bus,
'slot': pci_dev.slot,
'func': pci_dev.func,
'vendor_id': pci_dev.vendor,
'vendor_name': pci_dev.vendorname,
'device_id': pci_dev.device,
'device_name': pci_dev.devicename,
'revision_id': pci_dev.revision,
'class_code': pci_dev.classcode,
'class_name': pci_dev.classname,
'subsystem_vendor_id': pci_dev.subvendor,
'subsystem_vendor_name': pci_dev.subvendorname,
'subsystem_id': pci_dev.subdevice,
'subsystem_name': pci_dev.subdevicename,
'driver': pci_dev.driver
}
# If saved uuid exists, use it. Otherwise create one.
ppci_uuid = saved_ppci_table.get(pci_dev.name, uuid.createString())
XendPPCI(ppci_uuid, ppci_record)
def configure(self):
log.info("Configuring vnet %s", self.id)
val = vnet_cmd(['vnet.add'] + sxp.children(self.config))
Brctl.bridge_create(self.bridge)
Brctl.vif_bridge_add({'bridge': self.bridge, 'vif': self.vnetif})
return val
def bridge_exists(name):
return name in Brctl.get_state().keys()
