def _isLibvirtInterface(device):
try:
networks = libvirt.networks()
except libvirtError: # libvirt might not be started or it just fails
logging.error('Libvirt failed to answer. It might be the case that'
' this script is being run before libvirt startup. '
' Thus, check if vdsm owns %s an alternative way' %
device)
return DynamicSourceRoute._isLibvirtInterfaceFallback(device)
trackedInterfaces = [network.get('bridge') or network.get('iface')
for network in networks.itervalues()]
return device in trackedInterfaces
def _get(vdsmnets=None):
"""
Generate a networking report for all devices, including data managed by
libvirt.
In case vdsmnets is provided, it is used in the report instead of
retrieving data from libvirt.
:return: Dict of networking devices with all their details.
"""
networking = {
'bondings': {},
'bridges': {},
'networks': {},
'nics': {},
'vlans': {},
'dnss': get_host_nameservers()
}
paddr = bonding.permanent_address()
ipaddrs = getIpAddrs()
routes = get_routes()
if vdsmnets is None:
libvirt_nets = libvirt.networks()
networking['networks'] = libvirtNets2vdsm(libvirt_nets, routes,
ipaddrs)
else:
networking['networks'] = vdsmnets
for dev in (link for link in getLinks() if not link.isHidden()):
if dev.isBRIDGE():
devinfo = networking['bridges'][dev.name] = bridges.info(dev)
elif dev.isNICLike():
devinfo = networking['nics'][dev.name] = nics.info(dev, paddr)
devinfo.update(bonding.get_bond_slave_agg_info(dev.name))
elif dev.isBOND():
devinfo = networking['bondings'][dev.name] = bonding.info(dev)
devinfo.update(bonding.get_bond_agg_info(dev.name))
devinfo.update(LEGACY_SWITCH)
elif dev.isVLAN():
devinfo = networking['vlans'][dev.name] = vlans.info(dev)
else:
continue
devinfo.update(_devinfo(dev, routes, ipaddrs))
for network_name, network_info in six.iteritems(networking['networks']):
updates = propose_updates_to_reported_dhcp(network_info, networking)
update_reported_dhcp(updates, networking)
networking['networks'][network_name].update(LEGACY_SWITCH)
report_network_qos(networking)
networking['supportsIPv6'] = ipv6_supported()
return networking
def ifaceUsed(iface):
"""Lightweight implementation of bool(Netinfo.ifaceUsers()) that does not
require a NetInfo object."""
if os.path.exists(os.path.join(netinfo.NET_PATH, iface, 'brport')):
return True # Is it a port
for linkDict in nl_link.iter_links():
if linkDict['name'] == iface and 'master' in linkDict: # Is it a slave
return True
if linkDict.get('device') == iface and linkDict.get('type') == 'vlan':
return True # it backs a VLAN
for net_attr in six.itervalues(libvirt.networks()):
if net_attr.get('iface') == iface:
return True
return False
def ifaceUsed(iface):
"""Lightweight implementation of bool(Netinfo.ifaceUsers()) that does not
require a NetInfo object."""
if os.path.exists(os.path.join(netinfo.NET_PATH, iface, 'brport')):
return True # Is it a port
for linkDict in nl_link.iter_links():
if linkDict['name'] == iface and 'master' in linkDict: # Is it a slave
return True
if linkDict.get('device') == iface and linkDict.get('type') == 'vlan':
return True # it backs a VLAN
for net_attr in six.itervalues(libvirt.networks()):
if net_attr.get('iface') == iface:
return True
return False
def _isLibvirtInterface(device):
try:
networks = libvirt.networks()
except libvirtError: # libvirt might not be started or it just fails
logging.error('Libvirt failed to answer. It might be the case that'
' this script is being run before libvirt startup. '
' Thus, check if vdsm owns %s an alternative way' %
device)
return DynamicSourceRoute._isLibvirtInterfaceFallback(device)
trackedInterfaces = [
network.get('bridge') or network.get('iface')
for network in networks.itervalues()
]
return device in trackedInterfaces
def _networks_report(vdsmnets, routes, ipaddrs, devices_info):
if vdsmnets is None:
nets_info = libvirtNets2vdsm(libvirt.networks(), routes, ipaddrs)
else:
nets_info = vdsmnets
ifaces = {net_info["iface"] for net_info in six.itervalues(nets_info)}
dhcp_info = dhclient.dhcp_info(ifaces)
for network_info in six.itervalues(nets_info):
network_info.update(dhcp_info[network_info["iface"]])
network_info.update(LEGACY_SWITCH)
report_network_qos(nets_info, devices_info)
return nets_info
def _get(vdsmnets=None):
"""
Generate a networking report for all devices, including data managed by
libvirt.
In case vdsmnets is provided, it is used in the report instead of
retrieving data from libvirt.
:return: Dict of networking devices with all their details.
"""
networking = {'bondings': {}, 'bridges': {}, 'networks': {}, 'nics': {},
'vlans': {}, 'dnss': get_host_nameservers()}
paddr = bonding.permanent_address()
ipaddrs = getIpAddrs()
routes = get_routes()
if vdsmnets is None:
libvirt_nets = libvirt.networks()
networking['networks'] = libvirtNets2vdsm(libvirt_nets, routes,
ipaddrs)
else:
networking['networks'] = vdsmnets
for dev in (link for link in getLinks() if not link.isHidden()):
if dev.isBRIDGE():
devinfo = networking['bridges'][dev.name] = bridges.info(dev)
elif dev.isNICLike():
devinfo = networking['nics'][dev.name] = nics.info(dev, paddr)
devinfo.update(bonding.get_bond_slave_agg_info(dev.name))
elif dev.isBOND():
devinfo = networking['bondings'][dev.name] = bonding.info(dev)
devinfo.update(bonding.get_bond_agg_info(dev.name))
devinfo.update(LEGACY_SWITCH)
elif dev.isVLAN():
devinfo = networking['vlans'][dev.name] = vlans.info(dev)
else:
continue
devinfo.update(_devinfo(dev, routes, ipaddrs))
for network_name, network_info in six.iteritems(networking['networks']):
updates = propose_updates_to_reported_dhcp(network_info, networking)
update_reported_dhcp(updates, networking)
networking['networks'][network_name].update(LEGACY_SWITCH)
report_network_qos(networking)
networking['supportsIPv6'] = ipv6_supported()
return networking
def libvirt_networks():
"""Report libvirt known networks"""
return libvirt.networks()
def libvirt_networks():
"""Report libvirt known networks"""
return libvirt.networks()
