def setup(self):
log.debug('Setting network options for media downloads')
nicChoices = userchoices.getDownloadNic()
nic = nicChoices.get('device', None)
if nic and not nic.isLinkUp:
failWithLog(('The specified network interface card (Name: %s'
' MAC Address: %s) is not plugged in.'
' Installation cannot continue as requested') %\
(nic.name, nic.macAddress))
elif not nic and not networking.getPluggedInAvailableNIC(None):
# Check for an available NIC before we go further.
# It's best to fail early and provide a descriptive error
failWithLog('This system does not have a network interface'
' card that is plugged in, or all network'
' interface cards are already claimed. '
' Installation cannot continue as requested')
# Create a netmask if it was left out
ip = nicChoices.get('ip', None)
netmask = nicChoices.get('netmask', None)
if netmask and not ip:
failWithLog('Netmask specified, but no IP given.')
if ip and not netmask:
log.warn('IP specified, but no netmask given. Guessing netmask.')
try:
netmask = networking.utils.calculateNetmask(ip)
except ValueError, ex:
msg = ((genericErr + ' A netmask could not be created.')
% ('IP Address', str(ex)))
failWithLog(msg)
nicChoices.update(netmask=netmask)
userchoices.setDownloadNic(**nicChoices)
def updateNicChoices(self, **kwargs):
self.needed = True
nicChoices = userchoices.getDownloadNic()
if not nicChoices:
# was empty - this is the first time populating it.
newArgs = dict(device='', vlanID='') #set defaults
else:
newArgs = nicChoices
newArgs.update(kwargs)
userchoices.setDownloadNic(**newArgs)
def checkExpected():
expected = {
'gateway' : '192.168.2.254',
'nameserver1' : '',
'nameserver2' : '',
'hostname' : 'localhost'
}
actual = userchoices.getDownloadNetwork()
assert actual == expected, actual
actual = userchoices.getDownloadNic()
assert actual['device'].name == 'vmnic32'
assert actual['vlanID'] == '5'
assert actual['bootProto'] == userchoices.NIC_BOOT_STATIC
assert actual['ip'] == '192.168.2.1'
assert actual['netmask'] == '255.255.255.0'
def checkExpected():
expected = {
'gateway': '192.168.2.254',
'nameserver1': '',
'nameserver2': '',
'hostname': 'localhost'
}
actual = userchoices.getDownloadNetwork()
assert actual == expected, actual
actual = userchoices.getDownloadNic()
assert actual['device'].name == 'vmnic32'
assert actual['vlanID'] == '5'
assert actual['bootProto'] == userchoices.NIC_BOOT_STATIC
assert actual['ip'] == '192.168.2.1'
assert actual['netmask'] == '255.255.255.0'
def cosConnectForInstaller(failOnWarnings=True, onlyConfiguredNics=True):
'''Like cosConnect, but it uses userchoices and if you use this
function exclusively, it will keep only one connected Vnic at a time.
Tries to make a connection in the following order, stopping after the
first successful connection is made:
1. try to use the config in userchoices.*DownloadNic and *DownloadNetwork
2. try to use the config in userchoices.*CosNic and *CosNetwork
3. try to use DHCP connections on any remaining NICs
Arguments:
failOnWarnings: if True, raise an exception on otherwise survivable
warnings
onlyConfiguredNics: if True, don't attempt any nics that haven't been
configured by the user. ie, don't try #3 above
'''
log.info('Attempting to bring up the network.')
def doRaise(msg):
raise Exception(msg)
if failOnWarnings:
logOrRaise = doRaise
else:
logOrRaise = log.warn
# ensure we're only manipulating one COS nic
disconnectDownloadNetwork()
global _connectedVNic
if _connectedVNic:
log.info('Brought down the already-enabled Virtual NIC.')
_connectedVNic = None
argsForCosConnect = []
allNicChoices = []
downloadNicChoices = userchoices.getDownloadNic()
if downloadNicChoices:
log.info('The user chose specific network settings for downloading'
'remote media. Those choices will be attempted first.')
if not downloadNicChoices['device']:
availableNIC = getPluggedInAvailableNIC(None)
if availableNIC:
downloadNicChoices.update(device=availableNIC)
allNicChoices.append(downloadNicChoices)
else:
logOrRaise('Could not find a free Physical NIC to attach to'
' download network specifications %s'
% str(downloadNicChoices))
else:
allNicChoices.append(downloadNicChoices)
cosNicChoices = userchoices.getCosNICs()
if cosNicChoices:
allNicChoices += cosNicChoices
else:
msg = 'No COS NICs have been added by the user.'
logOrRaise(msg)
for nicChoices in allNicChoices:
log.debug('nicChoices %s' %str(nicChoices))
log.debug('Setting vlan (%(vlanID)s), ipConf (%(bootProto)s, %(ip)s, %(netmask)s) '
'for NIC %(device)s' % nicChoices)
assert nicChoices['device']
nic = nicChoices['device'] # a reference to a PhysicalNicFacade
vlanID = nicChoices['vlanID']
if not vlanID:
vlanID = None #make sure it's None, not just ''
if nicChoices['bootProto'] == userchoices.NIC_BOOT_STATIC:
if not nicChoices['ip'] or not nicChoices['netmask']:
msg = ('COS NIC %s is not fully defined. Missing '
'IP address or netmask' % str(nic))
logOrRaise(msg)
ipConf = StaticIPConfig(nicChoices['ip'], nicChoices['netmask'])
elif nicChoices['bootProto'] == userchoices.NIC_BOOT_DHCP:
ipConf = DHCPIPConfig()
else:
msg = 'Unknown bootProto specified for %s' % nic
logOrRaise(msg)
ipConf = DHCPIPConfig()
argsForCosConnect.append((nic, vlanID, ipConf))
if not onlyConfiguredNics:
# we've tried all the user-configured nics, now try the rest with DHCP
configuredNics = [choices['device'] for choices in allNicChoices]
unConfiguredNics = set(getPhysicalNics()) - set(configuredNics)
# sort these for repeatability's sake.
unConfiguredNics = list(unConfiguredNics)
unConfiguredNics.sort()
for nic in unConfiguredNics:
if not nic.isLinkUp:
continue # it would be pointless to try unplugged NICs
log.info('Setting unconfigured NIC %s to use DHCP' % nic)
ipConf = DHCPIPConfig()
argsForCosConnect.append((nic, None, ipConf))
for nic, vlanID, ipConf in argsForCosConnect:
try:
log.info('Bringing up network interface for NIC %s. Using ipConf %s'
% (nic,ipConf))
vnic = cosConnect(pNic=nic, vlanID=vlanID, ipConf=ipConf)
except vmkctl.HostCtlException, ex:
msg = 'vmkctl HostCtlException:'+ ex.GetMessage()
logOrRaise(msg)
else:
log.info('COS has an enabled Virtual NIC %s.' % vnic)
_connectedVNic = vnic
break #we only need one to work