def attach(self, sr_uuid):
if not self._checkmount():
self.validate_remotepath(False)
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
io_timeout = util.get_nfs_timeout(self.session, sr_uuid)
self.mount_remotepath(sr_uuid, io_timeout)
self.attached = True
def create(self, sr_uuid, size):
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
self.validate_remotepath(True)
if self._checkmount():
raise xs_errors.XenError('NFSAttached')
# Set the target path temporarily to the base dir
# so that we can create the target SR directory
self.remotepath = self.dconf['serverpath'].encode('utf-8')
try:
self.mount_remotepath(sr_uuid)
except Exception as exn:
try:
os.rmdir(self.path)
except:
pass
raise exn
if not self.nosubdir:
newpath = os.path.join(self.path, sr_uuid)
if util.ioretry(lambda: util.pathexists(newpath)):
if len(util.ioretry(lambda: util.listdir(newpath))) != 0:
self.detach(sr_uuid)
raise xs_errors.XenError('SRExists')
else:
try:
util.ioretry(lambda: util.makedirs(newpath))
except util.CommandException as inst:
if inst.code != errno.EEXIST:
self.detach(sr_uuid)
raise xs_errors.XenError(
'NFSCreate',
opterr='remote directory creation error is %d' %
inst.code)
self.detach(sr_uuid)
def attach(self, sr_uuid):
if not self._checkmount():
self.validate_remotepath(False)
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
io_timeout = util.get_nfs_timeout(self.session, sr_uuid)
self.mount_remotepath(sr_uuid, io_timeout)
self.attached = True
def attach(self, sr_uuid):
self.validate_remotepath(False)
#self.remotepath = os.path.join(self.dconf['serverpath'], sr_uuid)
self.remotepath = self.dconf['serverpath']
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
self.mount_remotepath(sr_uuid)
def attach(self, sr_uuid):
self.validate_remotepath(False)
#self.remotepath = os.path.join(self.dconf['serverpath'], sr_uuid)
self.remotepath = self.dconf['serverpath']
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
self.mount_remotepath(sr_uuid)
def attach(self, sr_uuid):
if not self._checkmount():
self.validate_remotepath(False)
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
#Extract timeout and retrans values, if any
io_timeout = nfs.get_nfs_timeout(self.other_config)
io_retrans = nfs.get_nfs_retrans(self.other_config)
self.mount_remotepath(sr_uuid, timeout=io_timeout,
retrans=io_retrans)
self.attached = True
def attach(self, sr_uuid):
if not self._checkmount():
self.validate_remotepath(False)
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
#Extract timeout and retrans values, if any
io_timeout = nfs.get_nfs_timeout(self.other_config)
io_retrans = nfs.get_nfs_retrans(self.other_config)
self.mount_remotepath(sr_uuid, timeout=io_timeout,
retrans=io_retrans)
self.attached = True
def _scan_IQNs(self):
# Verify iSCSI target and port
util._testHost(self.target, self.port, 'ISCSITarget')
# Test and set the initiatorname file
iscsilib.ensure_daemon_running_ok(self.localIQN)
map = iscsilib.discovery(self.target, self.port, self.chapuser, self.chappassword)
map.append(("%s:%d" % (self.targetlist,self.port),"0","*"))
self.print_entries(map)
def attach(self, sr_uuid):
dbg_prt("[rbdsr] attach")
### Getting MON list using admin key above
ceph_mon_list_xml = self._getCEPH_response('ceph mon_status -f xml')
ceph_mon_list = self._formatMON_list(ceph_mon_list_xml)
# We got accurate list of monitor addresses, need pass that list of IPs to rbd add srting
accurate_address_string = ''
''' TODO: very long list-to-string conversion,
should be something like: address_string = ''.join(ceph_mon_list).replace('\n',',') if len(ceph_mon_list) >= 1'''
if len(ceph_mon_list) >= 1:
address_string = ''
for address in ceph_mon_list:
address_string += address.replace('\n', ',')
self.dconf['targetlist'] = address_string[:-1]
accurate_address_string = address_string[:-1]
else:
accurate_address_string = ceph_mon_list
### Getting admin key using ssh command
if self.dconf.has_key('SCSIid') and self.dconf['SCSIid']:
util._testHost(self.dconf['target'].split(',')[0],
long(self.dconf['port']), 'RBD Monitor')
rbd_auth_output = self._getCEPH_response(
'ceph auth list| grep admin -A1| grep key')
rbd_auth_key = self._formatCEPH_key(rbd_auth_output)
rbd_image_name = self.dconf['SCSIid']
dbg_prt("[rbdsr] rbd image name: %s", rbd_image_name)
attach_string = '%s name=admin,secret=%s %s %s' % (
accurate_address_string, rbd_auth_key, self.dconf['targetIQN'],
rbd_image_name)
if not os.path.exists('/sys/bus/rbd'):
os.execlp("modprobe", "modprobe", "rbd")
rbd_disk_path = '/dev/disk/by-id/scsi-%s' % rbd_image_name
rbd_scsi_path = '/dev/disk/by-scsid/%s' % rbd_image_name
rbd_block_index = self._getRBD_index(rbd_image_name)
if not os.path.exists(rbd_disk_path) and not rbd_block_index:
dbg_prt("[rbdsr] add rbd device begin:")
try:
rbd_add = open('/sys/bus/rbd/add', 'w')
rbd_add.write(attach_string)
rbd_add.close()
rbd_image_index = str(self._getRBD_index(rbd_image_name))
os.symlink('/dev/rbd%s' % rbd_image_index, rbd_disk_path)
os.makedirs(rbd_scsi_path)
os.symlink('../../../rbd%s' % rbd_image_index,
'%s/rbd%s' % (rbd_scsi_path, rbd_image_index))
self.attached = True
except IOError, e:
util.SMlog('the error is %s' % e)
self.attached = False
else:
dbg_prt("[rbdsr] rbd_disk_path:%s , rbd_block_index:%s",
rbd_disk_path, rbd_block_index)
def _scan_IQNs(self):
# Verify iSCSI target and port
util._testHost(self.target, self.port, 'ISCSITarget')
# Test and set the initiatorname file
iscsilib.ensure_daemon_running_ok(self.localIQN)
map = iscsilib.discovery(self.target, self.port, self.chapuser,
self.chappassword)
map.append(("%s:%d" % (self.targetlist, self.port), "0", "*"))
self.print_entries(map)
def attach(self, sr_uuid):
dbg_prt("[rbdsr] attach")
### Getting MON list using admin key above
ceph_mon_list_xml = self._getCEPH_response('ceph mon_status -f xml')
ceph_mon_list = self._formatMON_list(ceph_mon_list_xml)
# We got accurate list of monitor addresses, need pass that list of IPs to rbd add srting
accurate_address_string = ''
''' TODO: very long list-to-string conversion,
should be something like: address_string = ''.join(ceph_mon_list).replace('\n',',') if len(ceph_mon_list) >= 1'''
if len(ceph_mon_list) >= 1:
address_string = ''
for address in ceph_mon_list:
address_string += address.replace('\n',',')
self.dconf['targetlist'] = address_string[:-1]
accurate_address_string = address_string[:-1]
else:
accurate_address_string = ceph_mon_list
### Getting admin key using ssh command
if self.dconf.has_key('SCSIid') and self.dconf['SCSIid']:
util._testHost(self.dconf['target'].split(',')[0], long(self.dconf['port']), 'RBD Monitor')
rbd_auth_output = self._getCEPH_response('ceph auth list| grep admin -A1| grep key')
rbd_auth_key = self._formatCEPH_key(rbd_auth_output)
rbd_image_name = self.dconf['SCSIid']
dbg_prt("[rbdsr] rbd image name: %s",rbd_image_name)
attach_string = '%s name=admin,secret=%s %s %s' % (accurate_address_string, rbd_auth_key, self.dconf['targetIQN'], rbd_image_name)
if not os.path.exists('/sys/bus/rbd'):
os.execlp("modprobe", "modprobe", "rbd")
rbd_disk_path = '/dev/disk/by-id/scsi-%s' % rbd_image_name
rbd_scsi_path = '/dev/disk/by-scsid/%s' % rbd_image_name
rbd_block_index = self._getRBD_index(rbd_image_name)
if not os.path.exists(rbd_disk_path) and not rbd_block_index:
dbg_prt("[rbdsr] add rbd device begin:")
try:
rbd_add = open('/sys/bus/rbd/add','w')
rbd_add.write(attach_string)
rbd_add.close()
rbd_image_index = str(self._getRBD_index(rbd_image_name))
os.symlink('/dev/rbd%s' % rbd_image_index , rbd_disk_path)
os.makedirs(rbd_scsi_path)
os.symlink('../../../rbd%s' % rbd_image_index, '%s/rbd%s' % (rbd_scsi_path,rbd_image_index))
self.attached = True
except IOError, e:
util.SMlog('the error is %s' % e)
self.attached = False
else:
dbg_prt("[rbdsr] rbd_disk_path:%s , rbd_block_index:%s",rbd_disk_path,rbd_block_index)
def attach(self, sr_uuid):
rbd_index = self._getRBDIndex(self.dconf['image'])
if self.dconf.has_key('image') and \
self.dconf['image'] and \
os.path.exists('/dev/rbd%s' % rbd_index):
self.attached = True
return
if self.dconf.has_key('image') and self.dconf['image']:
rbd_image = self.dconf['image']
for target in self.dconf['target'].split(','):
util._testHost(target, long(self.dconf['port']), 'RBD Monitor')
attach_string = '{targets} name={user},secret={secret} {pool} {image}'
attach_values = {
'targets': self.dconf['targetlist'],
'user': self.dconf['user'],
'secret': '<protected>',
'pool': self.dconf['pool'],
'image': rbd_image
}
util.SMlog('Attach string: %s' %
attach_string.format(**attach_values))
attach_values['secret'] = self.dconf['auth']
if not os.path.exists('/sys/bus/rbd'):
os.execlp('modprobe', 'modprobe', 'rbd')
rbd_disk_path = '/dev/disk/by-id/scsi-%s' % rbd_image
rbd_scsi_path = '/dev/disk/by-scsid/%s' % rbd_image
if not os.path.exists(rbd_disk_path) and not rbd_index:
try:
with open('/sys/bus/rbd/add', 'w') as rbd_add:
rbd_add.write(attach_string.format(**attach_values))
#
# update rbd_index after attaching
#
rbd_index = self._getRBDIndex(self.dconf['image'])
os.symlink('/dev/rbd%s' % rbd_index, rbd_disk_path)
os.makedirs(rbd_scsi_path)
os.symlink('../../../rbd%s' % rbd_index,
'%s/rbd%s' % (rbd_scsi_path, rbd_index))
self.attached = True
self.SCSIid = rbd_index
except IOError, e:
util.SMlog('Attach thrown exception and the error is %s' %
e)
self.attached = False
def create(self, sr_uuid, size):
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
self.validate_remotepath(True)
if self._checkmount():
raise xs_errors.XenError('NFSAttached')
# Set the target path temporarily to the base dir
# so that we can create the target SR directory
self.remotepath = self.dconf['serverpath']
try:
self.mount_remotepath(sr_uuid)
except Exception, exn:
try:
os.rmdir(self.path)
except:
pass
raise exn
def probe(self):
# Verify NFS target and port
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
self.validate_remotepath(True)
self.check_server()
temppath = os.path.join(SR.MOUNT_BASE, PROBE_MOUNTPOINT)
self.mount(temppath, self.dconf['serverpath'])
try:
return nfs.scan_srlist(temppath)
finally:
try:
nfs.unmount(temppath, True)
except:
pass
def probe(self):
# Verify NFS target and port
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
self.validate_remotepath(True)
self.check_server()
temppath = os.path.join(SR.MOUNT_BASE, PROBE_MOUNTPOINT)
self.mount(temppath, self.remotepath)
try:
return nfs.scan_srlist(temppath, self.dconf)
finally:
try:
nfs.unmount(temppath, True)
except:
pass
def create(self, sr_uuid, size):
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
self.validate_remotepath(True)
if self._checkmount():
raise xs_errors.XenError('NFSAttached')
# Set the target path temporarily to the base dir
# so that we can create the target SR directory
self.remotepath = self.dconf['serverpath'].encode('utf-8')
try:
self.mount_remotepath(sr_uuid)
except Exception, exn:
try:
os.rmdir(self.path)
except:
pass
raise exn
def attach(self, sr_uuid):
self._mpathHandle()
npaths = 0
if not self.attached:
# Verify iSCSI target and port
if self.dconf.has_key('multihomelist'
) and not self.dconf.has_key('multiSession'):
targetlist = self.dconf['multihomelist'].split(',')
else:
targetlist = ['%s:%d' % (self.target, self.port)]
conn = False
for val in targetlist:
(target, port) = iscsilib.parse_IP_port(val)
try:
util._testHost(target, long(port), 'ISCSITarget')
self.target = target
self.port = long(port)
conn = True
break
except:
pass
if not conn:
raise xs_errors.XenError('ISCSITarget')
# Test and set the initiatorname file
iscsilib.ensure_daemon_running_ok(self.localIQN)
# Check to see if auto attach was set
if not iscsilib._checkTGT(self.targetIQN):
try:
map = []
if 'any' != self.targetIQN:
try:
map = iscsilib.get_node_records(self.targetIQN)
except:
# Pass the exception that is thrown, when there
# are no nodes
pass
if len(map) == 0:
map = iscsilib.discovery(self.target, self.port,
self.chapuser,
self.chappassword,
self.targetIQN,
self._get_iscsi_interfaces())
if len(map) == 0:
self._scan_IQNs()
raise xs_errors.XenError(
'ISCSIDiscovery', opterr='check target settings')
for i in range(0, len(map)):
(portal, tpgt, iqn) = map[i]
try:
(ipaddr, port) = iscsilib.parse_IP_port(portal)
if not self.multihomed and ipaddr != self.target:
continue
util._testHost(ipaddr, long(port), 'ISCSITarget')
util.SMlog("Logging in to [%s:%s]" %
(ipaddr, port))
iscsilib.login(portal, iqn, self.chapuser,
self.chappassword,
self.incoming_chapuser,
self.incoming_chappassword,
self.mpath == "true")
npaths = npaths + 1
except Exception, e:
# Exceptions thrown in login are acknowledged,
# the rest of exceptions are ignored since some of the
# paths in multipath may not be reachable
if str(
e
) == 'ISCSI login failed, verify CHAP credentials':
raise
else:
pass
if not iscsilib._checkTGT(self.targetIQN):
raise xs_errors.XenError('ISCSIDevice', \
opterr='during login')
# Allow the devices to settle
time.sleep(5)
except util.CommandException, inst:
raise xs_errors.XenError('ISCSILogin', \
opterr='code is %d' % inst.code)
def attach(self, sr_uuid):
self.validate_remotepath(False)
self.remotepath = os.path.join(self.dconf['serverpath'], sr_uuid)
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
io_timeout = util.get_nfs_timeout(self.session, sr_uuid)
self.mount_remotepath(sr_uuid, io_timeout)
def load(self, sr_uuid):
if not sr_uuid:
# This is a probe call, generate a temp sr_uuid
sr_uuid = util.gen_uuid()
driver = SR.driver('iscsi')
if self.original_srcmd.dconf.has_key('target'):
self.original_srcmd.dconf['targetlist'] = self.original_srcmd.dconf['target']
iscsi = driver(self.original_srcmd, sr_uuid)
self.iscsiSRs = []
self.iscsiSRs.append(iscsi)
if self.dconf['target'].find(',') == 0 or self.dconf['targetIQN'] == "*":
# Instantiate multiple sessions
self.iscsiSRs = []
if self.dconf['targetIQN'] == "*":
IQN = "any"
else:
IQN = self.dconf['targetIQN']
dict = {}
IQNstring = ""
IQNs = []
try:
if self.dconf.has_key('multiSession'):
IQNs = self.dconf['multiSession'].split("|")
for IQN in IQNs:
if IQN:
dict[IQN] = ""
else:
try:
IQNs.remove(IQN)
except:
# Exceptions are not expected but just in case
pass
# Order in multiSession must be preserved. It is important for dual-controllers.
# IQNstring cannot be built with a dictionary iteration because of this
IQNstring = self.dconf['multiSession']
else:
for tgt in self.dconf['target'].split(','):
try:
tgt_ip = util._convertDNS(tgt)
except:
raise xs_errors.XenError('DNSError')
iscsilib.ensure_daemon_running_ok(iscsi.localIQN)
map = iscsilib.discovery(tgt_ip,iscsi.port,iscsi.chapuser,iscsi.chappassword,targetIQN=IQN)
util.SMlog("Discovery for IP %s returned %s" % (tgt,map))
for i in range(0,len(map)):
(portal,tpgt,iqn) = map[i]
(ipaddr, port) = iscsilib.parse_IP_port(portal)
try:
util._testHost(ipaddr, long(port), 'ISCSITarget')
except:
util.SMlog("Target Not reachable: (%s:%s)" % (ipaddr, port))
continue
key = "%s,%s,%s" % (ipaddr,port,iqn)
dict[key] = ""
# Again, do not mess up with IQNs order. Dual controllers will benefit from that
if IQNstring == "":
# Compose the IQNstring first
for key in dict.iterkeys(): IQNstring += "%s|" % key
# Reinitialize and store iterator
key_iterator = dict.iterkeys()
else:
key_iterator = IQNs
# Now load the individual iSCSI base classes
for key in key_iterator:
(ipaddr,port,iqn) = key.split(',')
srcmd_copy = copy.deepcopy(self.original_srcmd)
srcmd_copy.dconf['target'] = ipaddr
srcmd_copy.dconf['targetIQN'] = iqn
srcmd_copy.dconf['multiSession'] = IQNstring
util.SMlog("Setting targetlist: %s" % srcmd_copy.dconf['targetlist'])
self.iscsiSRs.append(driver(srcmd_copy, sr_uuid))
pbd = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
if pbd <> None and not self.dconf.has_key('multiSession'):
dconf = self.session.xenapi.PBD.get_device_config(pbd)
dconf['multiSession'] = IQNstring
self.session.xenapi.PBD.set_device_config(pbd, dconf)
except:
util.logException("LVHDoISCSISR.load")
self.iscsi = self.iscsiSRs[0]
# Be extremely careful not to throw exceptions here since this function
# is the main one used by all operations including probing and creating
pbd = None
try:
pbd = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
except:
pass
# Apart from the upgrade case, user must specify a SCSIid
if not self.dconf.has_key('SCSIid'):
# Dual controller issue
self.LUNs = {} # Dict for LUNs from all the iscsi objects
for ii in range(0, len(self.iscsiSRs)):
self.iscsi = self.iscsiSRs[ii]
self._LUNprint(sr_uuid)
for key in self.iscsi.LUNs:
self.LUNs[key] = self.iscsi.LUNs[key]
self.print_LUNs_XML()
self.iscsi = self.iscsiSRs[0] # back to original value
raise xs_errors.XenError('ConfigSCSIid')
self.SCSIid = self.dconf['SCSIid']
# This block checks if the first iscsi target contains the right SCSIid.
# If not it scans the other iscsi targets because chances are that more
# than one controller is present
dev_match = False
forced_login = False
# No need to check if only one iscsi target is present
if len(self.iscsiSRs) == 1:
pass
else:
target_success = False
attempt_discovery = False
for iii in range(0, len(self.iscsiSRs)):
# Check we didn't leave any iscsi session open
# If exceptions happened before, the cleanup function has worked on the right target.
if forced_login == True:
try:
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
iscsilib.logout(self.iscsi.target, self.iscsi.targetIQN)
forced_login = False
except:
raise xs_errors.XenError('ISCSILogout')
self.iscsi = self.iscsiSRs[iii]
util.SMlog("path %s" %self.iscsi.path)
util.SMlog("iscsci data: targetIQN %s, portal %s" % (self.iscsi.targetIQN, self.iscsi.target))
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
if not iscsilib._checkTGT(self.iscsi.targetIQN):
attempt_discovery = True
try:
# Ensure iscsi db has been populated
map = iscsilib.discovery(
self.iscsi.target,
self.iscsi.port,
self.iscsi.chapuser,
self.iscsi.chappassword,
targetIQN=self.iscsi.targetIQN)
if len(map) == 0:
util.SMlog("Discovery for iscsi data targetIQN %s,"
" portal %s returned empty list"
" Trying another path if available" %
(self.iscsi.targetIQN,
self.iscsi.target))
continue
except:
util.SMlog("Discovery failed for iscsi data targetIQN"
" %s, portal %s. Trying another path if"
" available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
try:
iscsilib.login(self.iscsi.target,
self.iscsi.targetIQN,
self.iscsi.chapuser,
self.iscsi.chappassword,
self.iscsi.incoming_chapuser,
self.iscsi.incoming_chappassword,
self.mpath == "true")
except:
util.SMlog("Login failed for iscsi data targetIQN %s,"
" portal %s. Trying another path"
" if available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
target_success = True;
forced_login = True
# A session should be active.
if not util.wait_for_path(self.iscsi.path, ISCSISR.MAX_TIMEOUT):
util.SMlog("%s has no associated LUNs" % self.iscsi.targetIQN)
continue
scsiid_path = "/dev/disk/by-id/scsi-" + self.SCSIid
if not util.wait_for_path(scsiid_path, ISCSISR.MAX_TIMEOUT):
util.SMlog("%s not found" %scsiid_path)
continue
for file in filter(self.iscsi.match_lun, util.listdir(self.iscsi.path)):
lun_path = os.path.join(self.iscsi.path,file)
lun_dev = scsiutil.getdev(lun_path)
try:
lun_scsiid = scsiutil.getSCSIid(lun_dev)
except:
util.SMlog("getSCSIid failed on %s in iscsi %s: LUN"
" offline or iscsi path down" %
(lun_dev, self.iscsi.path))
continue
util.SMlog("dev from lun %s %s" %(lun_dev, lun_scsiid))
if lun_scsiid == self.SCSIid:
util.SMlog("lun match in %s" %self.iscsi.path)
dev_match = True
# No more need to raise ISCSITarget exception.
# Resetting attempt_discovery
attempt_discovery = False
break
if dev_match:
if iii == 0:
break
util.SMlog("IQN reordering needed")
new_iscsiSRs = []
IQNs = {}
IQNstring = ""
# iscsiSRs can be seen as a circular buffer: the head now is the matching one
for kkk in range(iii, len(self.iscsiSRs)) + range(0, iii):
new_iscsiSRs.append(self.iscsiSRs[kkk])
ipaddr = self.iscsiSRs[kkk].target
port = self.iscsiSRs[kkk].port
iqn = self.iscsiSRs[kkk].targetIQN
key = "%s,%s,%s" % (ipaddr,port,iqn)
# The final string must preserve the order without repetition
if not IQNs.has_key(key):
IQNs[key] = ""
IQNstring += "%s|" % key
util.SMlog("IQNstring is now %s" %IQNstring)
self.iscsiSRs = new_iscsiSRs
util.SMlog("iqn %s is leading now" %self.iscsiSRs[0].targetIQN)
# Updating pbd entry, if any
try:
pbd = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
if pbd <> None and self.dconf.has_key('multiSession'):
util.SMlog("Updating multiSession in PBD")
dconf = self.session.xenapi.PBD.get_device_config(pbd)
dconf['multiSession'] = IQNstring
self.session.xenapi.PBD.set_device_config(pbd, dconf)
except:
pass
break
if not target_success and attempt_discovery:
raise xs_errors.XenError('ISCSITarget')
# Check for any unneeded open iscsi sessions
if forced_login == True:
try:
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
iscsilib.logout(self.iscsi.target, self.iscsi.targetIQN)
forced_login = False
except:
raise xs_errors.XenError('ISCSILogout')
self._pathrefresh(LVHDoISCSISR, load = False)
LVHDSR.LVHDSR.load(self, sr_uuid)
def attach(self, sr_uuid):
self._mpathHandle()
multiTargets = False
npaths = 0
try:
pbdref = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
if pbdref:
other_config = self.session.xenapi.PBD.get_other_config(pbdref)
multiTargets = util.sessions_less_than_targets(
other_config, self.dconf)
except:
pass
if not self.attached or multiTargets:
# Verify iSCSI target and port
if 'multihomelist' in self.dconf and 'multiSession' not in self.dconf:
targetlist = self.dconf['multihomelist'].split(',')
else:
targetlist = ['%s:%d' % (self.target, self.port)]
conn = False
for val in targetlist:
(target, port) = iscsilib.parse_IP_port(val)
try:
util._testHost(target, long(port), 'ISCSITarget')
self.target = target
self.port = long(port)
conn = True
break
except:
pass
if not conn:
raise xs_errors.XenError('ISCSITarget')
# Test and set the initiatorname file
iscsilib.ensure_daemon_running_ok(self.localIQN)
# Check to see if auto attach was set
if not iscsilib._checkTGT(self.targetIQN) or multiTargets:
try:
map = []
if 'any' != self.targetIQN:
try:
map = iscsilib.get_node_records(self.targetIQN)
except:
# Pass the exception that is thrown, when there
# are no nodes
pass
if len(map) == 0:
map = iscsilib.discovery(
self.target, self.port, self.chapuser,
self.chappassword, self.targetIQN,
iscsilib.get_iscsi_interfaces())
if len(map) == 0:
self._scan_IQNs()
raise xs_errors.XenError(
'ISCSIDiscovery', opterr='check target settings')
for i in range(0, len(map)):
(portal, tpgt, iqn) = map[i]
try:
(ipaddr, port) = iscsilib.parse_IP_port(portal)
if not self.multihomed and ipaddr != self.target:
continue
util._testHost(ipaddr, long(port), 'ISCSITarget')
util.SMlog("Logging in to [%s:%s]" %
(ipaddr, port))
iscsilib.login(portal, iqn, self.chapuser,
self.chappassword,
self.incoming_chapuser,
self.incoming_chappassword,
self.mpath == "true")
npaths = npaths + 1
except Exception as e:
# Exceptions thrown in login are acknowledged,
# the rest of exceptions are ignored since some of the
# paths in multipath may not be reachable
if str(e).startswith('ISCSI login'):
raise
else:
pass
if not iscsilib._checkTGT(self.targetIQN):
raise xs_errors.XenError('ISCSIDevice', \
opterr='during login')
# Allow the devices to settle
time.sleep(5)
except util.CommandException as inst:
raise xs_errors.XenError('ISCSILogin', \
opterr='code is %d' % inst.code)
self.attached = True
self._initPaths()
util._incr_iscsiSR_refcount(self.targetIQN, sr_uuid)
IQNs = []
if "multiSession" in self.dconf:
IQNs = ""
for iqn in self.dconf['multiSession'].split("|"):
if len(iqn): IQNs += iqn.split(',')[2]
else:
IQNs.append(self.targetIQN)
sessions = 0
paths = iscsilib.get_IQN_paths()
for path in paths:
try:
if util.get_single_entry(os.path.join(path,
'targetname')) in IQNs:
sessions += 1
util.SMlog("IQN match. Incrementing sessions to %d" %
sessions)
except:
util.SMlog("Failed to read targetname path," \
+ "iscsi_sessions value may be incorrect")
if pbdref:
# Just to be safe in case of garbage left during crashes
# we remove the key and add it
self.session.xenapi.PBD.remove_from_other_config(
pbdref, "iscsi_sessions")
self.session.xenapi.PBD.add_to_other_config(
pbdref, "iscsi_sessions", str(sessions))
if 'SCSIid' in self.dconf:
if self.mpath == 'true':
self.mpathmodule.refresh(self.dconf['SCSIid'], 0)
devs = os.listdir("/dev/disk/by-scsid/%s" % self.dconf['SCSIid'])
for dev in devs:
realdev = os.path.realpath("/dev/disk/by-scsid/%s/%s" %
(self.dconf['SCSIid'], dev))
util.set_scheduler(realdev.split("/")[-1], "noop")
def attach(self, sr_uuid):
self.validate_remotepath(False)
self.remotepath = os.path.join(self.dconf['serverpath'], sr_uuid)
util._testHost(self.dconf['server'], NFSPORT, 'NFSTarget')
io_timeout = util.get_nfs_timeout(self.session, sr_uuid)
self.mount_remotepath(sr_uuid, io_timeout)
def attach(self, sr_uuid):
"""Std. attach"""
# Very-Legacy mode means the ISOs are in the local fs - so no need to attach.
if 'legacy_mode' in self.dconf:
# Verify path exists
if not os.path.exists(self.mountpoint):
raise xs_errors.XenError('ISOLocalPath')
return
# Check whether we're already mounted
if self._checkmount():
return
# Create the mountpoint if it's not already there
if not util.isdir(self.mountpoint):
util.makedirs(self.mountpoint)
mountcmd = []
location = util.to_plain_string(self.dconf['location'])
# TODO: Have XC standardise iso type string
protocol = 'nfs_iso'
options = ''
if 'type' in self.dconf:
protocol = self.dconf['type']
elif ":/" not in location:
protocol = 'cifs'
if 'options' in self.dconf:
options = self.dconf['options'].split(' ')
if protocol == 'cifs':
options = filter(lambda x: x != "", options)
else:
options = self.getNFSOptions(options)
# SMB options are passed differently for create via
# XC/xe sr-create and create via xe-mount-iso-sr
# In both cases check if SMB version is passed are not.
# If not use self.smbversion.
if protocol == 'cifs':
if 'type' in self.dconf:
# Create via XC or sr-create
# Check for username and password
mountcmd = ["mount.cifs", location, self.mountpoint]
if 'vers' in self.dconf:
self.is_smbversion_specified = True
self.smbversion = self.dconf['vers']
util.SMlog("self.dconf['vers'] = %s" % self.dconf['vers'])
self.appendCIFSMountOptions(mountcmd)
else:
# Creation via xe-mount-iso-sr
try:
mountcmd = ["mount", location, self.mountpoint]
if options and options[0] == '-o':
pos = options[1].find('vers=')
if pos == -1:
options[1] += ',' + self.getSMBVersion()
else:
self.smbversion = self.getSMBVersionFromOptions(
options[1])
self.is_smbversion_specified = True
else:
raise ValueError
mountcmd.extend(options)
except ValueError:
raise xs_errors.XenError('ISOInvalidXeMountOptions')
# Check the validity of 'smbversion'.
# Raise an exception for any invalid version.
if self.smbversion not in [SMB_VERSION_1, SMB_VERSION_3]:
raise xs_errors.XenError('ISOInvalidSMBversion')
# Attempt mounting
try:
if protocol == 'nfs_iso':
# For NFS, do a soft mount with tcp as protocol. Since ISO SR is
# going to be r-only, a failure in nfs link can be reported back
# to the process waiting.
serv_path = location.split(':')
util._testHost(serv_path[0], NFSPORT, 'NFSTarget')
nfs.soft_mount(self.mountpoint,
serv_path[0],
serv_path[1],
'tcp',
useroptions=options,
nfsversion=self.nfsversion)
else:
smb3_fail_reason = None
if self.smbversion in SMB_VERSION_3:
util.SMlog('ISOSR mount over smb 3.0')
try:
self.mountOverSMB(mountcmd)
except util.CommandException as inst:
if not self.is_smbversion_specified:
util.SMlog('Retrying ISOSR mount over smb 1.0')
smb3_fail_reason = inst.reason
# mountcmd is constructed such that the last two
# items will contain -o argument and its value.
del mountcmd[-2:]
self.smbversion = SMB_VERSION_1
if not options:
self.appendCIFSMountOptions(mountcmd)
else:
if options[0] == '-o':
# regex can be used here since we have
# already validated version entry
options[1] = re.sub(
'vers=3.0', 'vers=1.0', options[1])
mountcmd.extend(options)
self.mountOverSMB(mountcmd)
else:
raise xs_errors.XenError('ISOMountFailure',
opterr=inst.reason)
else:
util.SMlog('ISOSR mount over smb 1.0')
self.mountOverSMB(mountcmd)
except util.CommandException as inst:
if not self.is_smbversion_specified:
raise xs_errors.XenError('ISOMountFailure',
opterr=smb3_fail_reason)
else:
raise xs_errors.XenError('ISOMountFailure', opterr=inst.reason)
# Check the iso_path is accessible
if not self._checkmount():
self.detach(sr_uuid)
raise xs_errors.XenError('ISOSharenameFailure')
def attach(self, sr_uuid):
self._mpathHandle()
npaths=0
if not self.attached:
# Verify iSCSI target and port
if self.dconf.has_key('multihomelist') and not self.dconf.has_key('multiSession'):
targetlist = self.dconf['multihomelist'].split(',')
else:
targetlist = ['%s:%d' % (self.target,self.port)]
conn = False
for val in targetlist:
(target,port) = val.split(':')
try:
util._testHost(target, long(port), 'ISCSITarget')
self.target = target
self.port = long(port)
conn = True
break
except:
pass
if not conn:
raise xs_errors.XenError('ISCSITarget')
# Test and set the initiatorname file
iscsilib.ensure_daemon_running_ok(self.localIQN)
# Check to see if auto attach was set
if not iscsilib._checkTGT(self.targetIQN):
try:
map = iscsilib.discovery(self.target, self.port, self.chapuser, \
self.chappassword, targetIQN=self.targetIQN)
iqn = ''
if len(map) == 0:
self._scan_IQNs()
raise xs_errors.XenError('ISCSIDiscovery',
opterr='check target settings')
for i in range(0,len(map)):
(portal,tpgt,iqn) = map[i]
try:
(ipaddr,port) = portal.split(',')[0].split(':')
if not self.multihomed and ipaddr != self.target:
continue
util._testHost(ipaddr, long(port), 'ISCSITarget')
util.SMlog("Logging in to [%s:%s]" % (ipaddr,port))
iscsilib.login(portal, iqn, self.chapuser, self.chappassword, self.incoming_chapuser, self.incoming_chappassword)
npaths = npaths + 1
except:
pass
if not iscsilib._checkTGT(self.targetIQN):
raise xs_errors.XenError('ISCSIDevice', \
opterr='during login')
# Allow the devices to settle
time.sleep(5)
except util.CommandException, inst:
raise xs_errors.XenError('ISCSILogin', \
opterr='code is %d' % inst.code)
self.attached = True
def load(self, sr_uuid):
if not sr_uuid:
# This is a probe call, generate a temp sr_uuid
sr_uuid = util.gen_uuid()
driver = SR.driver('iscsi')
if self.original_srcmd.dconf.has_key('target'):
self.original_srcmd.dconf[
'targetlist'] = self.original_srcmd.dconf['target']
iscsi = driver(self.original_srcmd, sr_uuid)
self.iscsiSRs = []
self.iscsiSRs.append(iscsi)
if self.dconf['target'].find(
',') == 0 or self.dconf['targetIQN'] == "*":
# Instantiate multiple sessions
self.iscsiSRs = []
if self.dconf['targetIQN'] == "*":
IQN = "any"
else:
IQN = self.dconf['targetIQN']
dict = {}
IQNstring = ""
IQNs = []
try:
if self.dconf.has_key('multiSession'):
IQNs = self.dconf['multiSession'].split("|")
for IQN in IQNs:
if IQN:
dict[IQN] = ""
else:
try:
IQNs.remove(IQN)
except:
# Exceptions are not expected but just in case
pass
# Order in multiSession must be preserved. It is important for dual-controllers.
# IQNstring cannot be built with a dictionary iteration because of this
IQNstring = self.dconf['multiSession']
else:
for tgt in self.dconf['target'].split(','):
try:
tgt_ip = util._convertDNS(tgt)
except:
raise xs_errors.XenError('DNSError')
iscsilib.ensure_daemon_running_ok(iscsi.localIQN)
map = iscsilib.discovery(tgt_ip,
iscsi.port,
iscsi.chapuser,
iscsi.chappassword,
targetIQN=IQN)
util.SMlog("Discovery for IP %s returned %s" %
(tgt, map))
for i in range(0, len(map)):
(portal, tpgt, iqn) = map[i]
(ipaddr, port) = iscsilib.parse_IP_port(portal)
try:
util._testHost(ipaddr, long(port),
'ISCSITarget')
except:
util.SMlog("Target Not reachable: (%s:%s)" %
(ipaddr, port))
continue
key = "%s,%s,%s" % (ipaddr, port, iqn)
dict[key] = ""
# Again, do not mess up with IQNs order. Dual controllers will benefit from that
if IQNstring == "":
# Compose the IQNstring first
for key in dict.iterkeys():
IQNstring += "%s|" % key
# Reinitialize and store iterator
key_iterator = dict.iterkeys()
else:
key_iterator = IQNs
# Now load the individual iSCSI base classes
for key in key_iterator:
(ipaddr, port, iqn) = key.split(',')
srcmd_copy = copy.deepcopy(self.original_srcmd)
srcmd_copy.dconf['target'] = ipaddr
srcmd_copy.dconf['targetIQN'] = iqn
srcmd_copy.dconf['multiSession'] = IQNstring
util.SMlog("Setting targetlist: %s" %
srcmd_copy.dconf['targetlist'])
self.iscsiSRs.append(driver(srcmd_copy, sr_uuid))
pbd = util.find_my_pbd(self.session, self.host_ref,
self.sr_ref)
if pbd <> None and not self.dconf.has_key('multiSession'):
dconf = self.session.xenapi.PBD.get_device_config(pbd)
dconf['multiSession'] = IQNstring
self.session.xenapi.PBD.set_device_config(pbd, dconf)
except:
util.logException("OCFSoISCSISR.load")
self.iscsi = self.iscsiSRs[0]
# Be extremely careful not to throw exceptions here since this function
# is the main one used by all operations including probing and creating
pbd = None
try:
pbd = util.find_my_pbd(self.session, self.host_ref, self.sr_ref)
except:
pass
# Apart from the upgrade case, user must specify a SCSIid
if not self.dconf.has_key('SCSIid'):
# Dual controller issue
self.LUNs = {} # Dict for LUNs from all the iscsi objects
for ii in range(0, len(self.iscsiSRs)):
self.iscsi = self.iscsiSRs[ii]
self._LUNprint(sr_uuid)
for key in self.iscsi.LUNs:
self.LUNs[key] = self.iscsi.LUNs[key]
self.print_LUNs_XML()
self.iscsi = self.iscsiSRs[0] # back to original value
raise xs_errors.XenError('ConfigSCSIid')
self.SCSIid = self.dconf['SCSIid']
# This block checks if the first iscsi target contains the right SCSIid.
# If not it scans the other iscsi targets because chances are that more
# than one controller is present
dev_match = False
forced_login = False
# No need to check if only one iscsi target is present
if len(self.iscsiSRs) == 1:
pass
else:
target_success = False
attempt_discovery = False
for iii in range(0, len(self.iscsiSRs)):
# Check we didn't leave any iscsi session open
# If exceptions happened before, the cleanup function has worked on the right target.
if forced_login == True:
try:
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
iscsilib.logout(self.iscsi.target,
self.iscsi.targetIQN)
forced_login = False
except:
raise xs_errors.XenError('ISCSILogout')
self.iscsi = self.iscsiSRs[iii]
util.SMlog("path %s" % self.iscsi.path)
util.SMlog("iscsci data: targetIQN %s, portal %s" %
(self.iscsi.targetIQN, self.iscsi.target))
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
if not iscsilib._checkTGT(self.iscsi.targetIQN):
attempt_discovery = True
try:
# Ensure iscsi db has been populated
map = iscsilib.discovery(
self.iscsi.target,
self.iscsi.port,
self.iscsi.chapuser,
self.iscsi.chappassword,
targetIQN=self.iscsi.targetIQN)
if len(map) == 0:
util.SMlog(
"Discovery for iscsi data targetIQN %s,"
" portal %s returned empty list"
" Trying another path if available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
except:
util.SMlog("Discovery failed for iscsi data targetIQN"
" %s, portal %s. Trying another path if"
" available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
try:
iscsilib.login(self.iscsi.target, self.iscsi.targetIQN,
self.iscsi.chapuser,
self.iscsi.chappassword,
self.iscsi.incoming_chapuser,
self.iscsi.incoming_chappassword,
self.mpath == "true")
except:
util.SMlog("Login failed for iscsi data targetIQN %s,"
" portal %s. Trying another path"
" if available" %
(self.iscsi.targetIQN, self.iscsi.target))
continue
target_success = True
forced_login = True
# A session should be active.
if not util.wait_for_path(self.iscsi.path,
ISCSISR.MAX_TIMEOUT):
util.SMlog("%s has no associated LUNs" %
self.iscsi.targetIQN)
continue
scsiid_path = "/dev/disk/by-id/scsi-" + self.SCSIid
if not util.wait_for_path(scsiid_path, ISCSISR.MAX_TIMEOUT):
util.SMlog("%s not found" % scsiid_path)
continue
for file in filter(self.iscsi.match_lun,
util.listdir(self.iscsi.path)):
lun_path = os.path.join(self.iscsi.path, file)
lun_dev = scsiutil.getdev(lun_path)
try:
lun_scsiid = scsiutil.getSCSIid(lun_dev)
except:
util.SMlog("getSCSIid failed on %s in iscsi %s: LUN"
" offline or iscsi path down" %
(lun_dev, self.iscsi.path))
continue
util.SMlog("dev from lun %s %s" % (lun_dev, lun_scsiid))
if lun_scsiid == self.SCSIid:
util.SMlog("lun match in %s" % self.iscsi.path)
dev_match = True
# No more need to raise ISCSITarget exception.
# Resetting attempt_discovery
attempt_discovery = False
break
if dev_match:
if iii == 0:
break
util.SMlog("IQN reordering needed")
new_iscsiSRs = []
IQNs = {}
IQNstring = ""
# iscsiSRs can be seen as a circular buffer: the head now is the matching one
for kkk in range(iii, len(self.iscsiSRs)) + range(0, iii):
new_iscsiSRs.append(self.iscsiSRs[kkk])
ipaddr = self.iscsiSRs[kkk].target
port = self.iscsiSRs[kkk].port
iqn = self.iscsiSRs[kkk].targetIQN
key = "%s,%s,%s" % (ipaddr, port, iqn)
# The final string must preserve the order without repetition
if not IQNs.has_key(key):
IQNs[key] = ""
IQNstring += "%s|" % key
util.SMlog("IQNstring is now %s" % IQNstring)
self.iscsiSRs = new_iscsiSRs
util.SMlog("iqn %s is leading now" %
self.iscsiSRs[0].targetIQN)
# Updating pbd entry, if any
try:
pbd = util.find_my_pbd(self.session, self.host_ref,
self.sr_ref)
if pbd <> None and self.dconf.has_key('multiSession'):
util.SMlog("Updating multiSession in PBD")
dconf = self.session.xenapi.PBD.get_device_config(
pbd)
dconf['multiSession'] = IQNstring
self.session.xenapi.PBD.set_device_config(
pbd, dconf)
except:
pass
break
if not target_success and attempt_discovery:
raise xs_errors.XenError('ISCSITarget')
# Check for any unneeded open iscsi sessions
if forced_login == True:
try:
iscsilib.ensure_daemon_running_ok(self.iscsi.localIQN)
iscsilib.logout(self.iscsi.target, self.iscsi.targetIQN)
forced_login = False
except:
raise xs_errors.XenError('ISCSILogout')
self._pathrefresh(OCFSoISCSISR, load=False)
OCFSSR.OCFSSR.load(self, sr_uuid)
def attach(self, sr_uuid):
self._mpathHandle()
npaths=0
if not self.attached:
# Verify iSCSI target and port
if self.dconf.has_key('multihomelist') and not self.dconf.has_key('multiSession'):
targetlist = self.dconf['multihomelist'].split(',')
else:
targetlist = ['%s:%d' % (self.target,self.port)]
conn = False
for val in targetlist:
(target, port) = iscsilib.parse_IP_port(val)
try:
util._testHost(target, long(port), 'ISCSITarget')
self.target = target
self.port = long(port)
conn = True
break
except:
pass
if not conn:
raise xs_errors.XenError('ISCSITarget')
# Test and set the initiatorname file
iscsilib.ensure_daemon_running_ok(self.localIQN)
# Check to see if auto attach was set
if not iscsilib._checkTGT(self.targetIQN):
try:
map = []
if 'any' != self.targetIQN:
try:
map = iscsilib.get_node_records(self.targetIQN)
except:
# Pass the exception that is thrown, when there
# are no nodes
pass
if len(map) == 0:
map = iscsilib.discovery(self.target, self.port,
self.chapuser, self.chappassword,
self.targetIQN,
self._get_iscsi_interfaces())
if len(map) == 0:
self._scan_IQNs()
raise xs_errors.XenError('ISCSIDiscovery',
opterr='check target settings')
for i in range(0,len(map)):
(portal,tpgt,iqn) = map[i]
try:
(ipaddr, port) = iscsilib.parse_IP_port(portal)
if not self.multihomed and ipaddr != self.target:
continue
util._testHost(ipaddr, long(port), 'ISCSITarget')
util.SMlog("Logging in to [%s:%s]" % (ipaddr,port))
iscsilib.login(portal, iqn, self.chapuser, self.chappassword, self.incoming_chapuser, self.incoming_chappassword)
npaths = npaths + 1
except Exception, e:
# Exceptions thrown in login are acknowledged,
# the rest of exceptions are ignored since some of the
# paths in multipath may not be reachable
if str(e) == 'ISCSI login failed, verify CHAP credentials':
raise
else:
pass
if not iscsilib._checkTGT(self.targetIQN):
raise xs_errors.XenError('ISCSIDevice', \
opterr='during login')
# Allow the devices to settle
time.sleep(5)
except util.CommandException, inst:
raise xs_errors.XenError('ISCSILogin', \
opterr='code is %d' % inst.code)
def attach(self, sr_uuid):
self._mpathHandle()
npaths = 0
if not self.attached:
# Verify iSCSI target and port
if self.dconf.has_key('multihomelist'
) and not self.dconf.has_key('multiSession'):
targetlist = self.dconf['multihomelist'].split(',')
else:
targetlist = ['%s:%d' % (self.target, self.port)]
conn = False
for val in targetlist:
(target, port) = val.split(':')
try:
util._testHost(target, long(port), 'ISCSITarget')
self.target = target
self.port = long(port)
conn = True
break
except:
pass
if not conn:
raise xs_errors.XenError('ISCSITarget')
# Test and set the initiatorname file
iscsilib.ensure_daemon_running_ok(self.localIQN)
# Check to see if auto attach was set
if not iscsilib._checkTGT(self.targetIQN):
try:
map = iscsilib.discovery(self.target, self.port, self.chapuser, \
self.chappassword, targetIQN=self.targetIQN)
iqn = ''
if len(map) == 0:
self._scan_IQNs()
raise xs_errors.XenError(
'ISCSIDiscovery', opterr='check target settings')
for i in range(0, len(map)):
(portal, tpgt, iqn) = map[i]
try:
(ipaddr, port) = portal.split(',')[0].split(':')
if not self.multihomed and ipaddr != self.target:
continue
util._testHost(ipaddr, long(port), 'ISCSITarget')
util.SMlog("Logging in to [%s:%s]" %
(ipaddr, port))
iscsilib.login(portal, iqn, self.chapuser,
self.chappassword,
self.incoming_chapuser,
self.incoming_chappassword)
npaths = npaths + 1
except:
pass
if not iscsilib._checkTGT(self.targetIQN):
raise xs_errors.XenError('ISCSIDevice', \
opterr='during login')
# Allow the devices to settle
time.sleep(5)
except util.CommandException, inst:
raise xs_errors.XenError('ISCSILogin', \
opterr='code is %d' % inst.code)
self.attached = True