def get_device_mapping_from_network(self,
initiator_wwn_list,
target_wwn_list):
"""Provides the initiator/target map for available SAN contexts.
Looks up fcns database of each fc SAN configured to find logged in
devices and returns a map of initiator and target port WWNs for each
fabric.
:param initiator_wwn_list: List of initiator port WWN
:param target_wwn_list: List of target port WWN
:returns: List -- device wwn map in following format
{
<San name>: {
'initiator_port_wwn_list':
('200000051e55a100', '200000051e55a121'..)
'target_port_wwn_list':
('100000051e55a100', '100000051e55a121'..)
}
}
:raises: Exception when connection to fabric is failed
"""
device_map = {}
formatted_target_list = []
formatted_initiator_list = []
fabric_map = {}
fabric_names = self.configuration.fc_fabric_names
if not fabric_names:
raise exception.InvalidParameterValue(
err=_("Missing Fibre Channel SAN configuration "
"param - fc_fabric_names"))
fabrics = [x.strip() for x in fabric_names.split(',')]
LOG.debug("FC Fabric List: %s", fabrics)
if fabrics:
for t in target_wwn_list:
formatted_target_list.append(zm_utils.get_formatted_wwn(t))
for i in initiator_wwn_list:
formatted_initiator_list.append(zm_utils.get_formatted_wwn(i))
for fabric_name in fabrics:
self.switch_ip = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_address')
self.switch_user = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_user')
self.switch_pwd = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_password')
self.switch_port = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_port')
zoning_vsan = self.fabric_configs[fabric_name].safe_get(
'cisco_zoning_vsan')
# Get name server data from fabric and find the targets
# logged in
nsinfo = ''
LOG.debug("show fcns database for vsan %s", zoning_vsan)
nsinfo = self.get_nameserver_info(zoning_vsan)
LOG.debug("Lookup service:fcnsdatabase-%s", nsinfo)
LOG.debug("Lookup service:initiator list from caller-%s",
formatted_initiator_list)
LOG.debug("Lookup service:target list from caller-%s",
formatted_target_list)
visible_targets = [x for x in nsinfo
if x in formatted_target_list]
visible_initiators = [x for x in nsinfo
if x in formatted_initiator_list]
if visible_targets:
LOG.debug("Filtered targets is: %s", visible_targets)
# getting rid of the : before returning
for idx, elem in enumerate(visible_targets):
elem = str(elem).replace(':', '')
visible_targets[idx] = elem
else:
LOG.debug("No targets are in the fcns database"
" for vsan %s", zoning_vsan)
if visible_initiators:
# getting rid of the : before returning ~sk
for idx, elem in enumerate(visible_initiators):
elem = str(elem).replace(':', '')
visible_initiators[idx] = elem
else:
LOG.debug("No initiators are in the fcns database"
" for vsan %s", zoning_vsan)
fabric_map = {'initiator_port_wwn_list': visible_initiators,
'target_port_wwn_list': visible_targets
}
device_map[zoning_vsan] = fabric_map
LOG.debug("Device map for SAN context: %s", device_map)
return device_map
def delete_connection(self, fabric, initiator_target_map, host_name=None,
storage_system=None):
"""Concrete implementation of delete_connection.
Based on zoning policy and state of each I-T pair, list of zones
are created for deletion. The zones are either updated deleted based
on the policy and attach/detach state of each I-T pair.
:param fabric: Fabric name from storage.conf file
:param initiator_target_map: Mapping of initiator to list of targets
"""
LOG.debug("Delete connection for fabric: %s", fabric)
LOG.info(_LI("CiscoFCZoneDriver - Delete connection for I-T map: %s"),
initiator_target_map)
fabric_ip = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_address')
fabric_user = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_user')
fabric_pwd = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_password')
fabric_port = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_port')
zoning_policy = self.configuration.zoning_policy
zoning_policy_fab = self.fabric_configs[fabric].safe_get(
'cisco_zoning_policy')
if zoning_policy_fab:
zoning_policy = zoning_policy_fab
zoning_vsan = self.fabric_configs[fabric].safe_get('cisco_zoning_vsan')
LOG.info(_LI("Zoning policy for fabric %s"), zoning_policy)
statusmap_from_fabric = self.get_zoning_status(
fabric_ip, fabric_user, fabric_pwd, fabric_port, zoning_vsan)
if statusmap_from_fabric.get('session') == 'none':
cfgmap_from_fabric = self.get_active_zone_set(
fabric_ip, fabric_user, fabric_pwd, fabric_port, zoning_vsan)
zone_names = []
if cfgmap_from_fabric.get('zones'):
zone_names = cfgmap_from_fabric['zones'].keys()
# Based on zoning policy, get zone member list and push
# changes to fabric. This operation could result in an update
# for zone config with new member list or deleting zones from
# active cfg.
LOG.debug("zone config from Fabric: %s", cfgmap_from_fabric)
for initiator_key in initiator_target_map.keys():
initiator = initiator_key.lower()
formatted_initiator = zm_utils.get_formatted_wwn(initiator)
zone_map = {}
zones_to_delete = []
t_list = initiator_target_map[initiator_key]
if zoning_policy == 'initiator-target':
# In this case, zone needs to be deleted.
for t in t_list:
target = t.lower()
zone_name = (
driver_utils.get_friendly_zone_name(
zoning_policy,
initiator,
target,
host_name,
storage_system,
self.configuration.cisco_zone_name_prefix,
SUPPORTED_CHARS))
LOG.debug("Zone name to del: %s", zone_name)
if (len(zone_names) > 0 and (zone_name in zone_names)):
# delete zone.
LOG.debug("Added zone to delete to list: %s",
zone_name)
zones_to_delete.append(zone_name)
elif zoning_policy == 'initiator':
zone_members = [formatted_initiator]
for t in t_list:
target = t.lower()
zone_members.append(
zm_utils.get_formatted_wwn(target))
zone_name = driver_utils.get_friendly_zone_name(
zoning_policy,
initiator,
target,
host_name,
storage_system,
self.configuration.cisco_zone_name_prefix,
SUPPORTED_CHARS)
if (zone_names and (zone_name in zone_names)):
filtered_members = filter(
lambda x: x not in zone_members,
cfgmap_from_fabric['zones'][zone_name])
# The assumption here is that initiator is always
# there in the zone as it is 'initiator' policy.
# We find the filtered list and if it is non-empty,
# add initiator to it and update zone if filtered
# list is empty, we remove that zone.
LOG.debug("Zone delete - I mode: filtered targets: %s",
filtered_members)
if filtered_members:
filtered_members.append(formatted_initiator)
LOG.debug("Filtered zone members to update: %s",
filtered_members)
zone_map[zone_name] = filtered_members
LOG.debug("Filtered zone Map to update: %s",
zone_map)
else:
zones_to_delete.append(zone_name)
else:
LOG.info(_LI("Zoning Policy: %s, not recognized"),
zoning_policy)
LOG.debug("Final Zone map to update: %s", zone_map)
LOG.debug("Final Zone list to delete: %s", zones_to_delete)
conn = None
try:
conn = importutils.import_object(
self.configuration.cisco_sb_connector,
ipaddress=fabric_ip,
username=fabric_user,
password=fabric_pwd,
port=fabric_port,
vsan=zoning_vsan)
# Update zone membership.
if zone_map:
conn.add_zones(
zone_map, self.configuration.cisco_zone_activate,
zoning_vsan, cfgmap_from_fabric,
statusmap_from_fabric)
# Delete zones ~sk.
if zones_to_delete:
zone_name_string = ''
num_zones = len(zones_to_delete)
for i in range(0, num_zones):
if i == 0:
zone_name_string = ('%s%s' % (
zone_name_string,
zones_to_delete[i]))
else:
zone_name_string = ('%s%s%s' % (
zone_name_string, ';',
zones_to_delete[i]))
conn.delete_zones(zone_name_string,
self.configuration.
cisco_zone_activate,
zoning_vsan, cfgmap_from_fabric,
statusmap_from_fabric)
conn.cleanup()
except Exception:
msg = _("Failed to update or delete zoning configuration")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
LOG.debug("Zones deleted successfully: %s", zone_map)
else:
LOG.debug("Zoning session exists VSAN: %s", zoning_vsan)
def get_san_context(self, target_wwn_list):
"""Lookup SAN context for visible end devices.
Look up each SAN configured and return a map of SAN (fabric IP) to
list of target WWNs visible to the fabric.
"""
formatted_target_list = []
fabric_map = {}
fabrics = [x.strip() for x in self.
configuration.fc_fabric_names.split(',')]
LOG.debug("Fabric List: %s", fabrics)
LOG.debug("Target wwn List: %s", target_wwn_list)
if len(fabrics) > 0:
for t in target_wwn_list:
formatted_target_list.append(
zm_utils.get_formatted_wwn(t.lower()))
LOG.debug("Formatted Target wwn List: %s", formatted_target_list)
for fabric_name in fabrics:
fabric_ip = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_address')
fabric_user = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_user')
fabric_pwd = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_password')
fabric_port = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_port')
zoning_vsan = self.fabric_configs[fabric_name].safe_get(
'cisco_zoning_vsan')
# Get name server data from fabric and get the targets
# logged in.
nsinfo = None
try:
conn = importutils.import_object(
self.configuration.cisco_sb_connector,
ipaddress=fabric_ip,
username=fabric_user,
password=fabric_pwd, port=fabric_port,
vsan=zoning_vsan)
nsinfo = conn.get_nameserver_info()
LOG.debug("show fcns database info from fabric: %s",
nsinfo)
conn.cleanup()
except exception.CiscoZoningCliException:
with excutils.save_and_reraise_exception():
LOG.exception(_LE("Error getting show fcns database "
"info."))
except Exception:
msg = _("Failed to get show fcns database info.")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
visible_targets = filter(
lambda x: x in formatted_target_list, nsinfo)
if visible_targets:
LOG.info(_LI("Filtered targets for SAN is: %s"),
{fabric_name: visible_targets})
# getting rid of the ':' before returning
for idx, elem in enumerate(visible_targets):
visible_targets[idx] = six.text_type(
visible_targets[idx]).replace(':', '')
fabric_map[fabric_name] = visible_targets
else:
LOG.debug("No targets are in the fcns info for SAN %s",
fabric_name)
LOG.debug("Return SAN context output: %s", fabric_map)
return fabric_map
def get_device_mapping_from_network(self, initiator_wwn_list,
target_wwn_list):
"""Provides the initiator/target map for available SAN contexts.
Looks up fcns database of each fc SAN configured to find logged in
devices and returns a map of initiator and target port WWNs for each
fabric.
:param initiator_wwn_list: List of initiator port WWN
:param target_wwn_list: List of target port WWN
:returns: List -- device wwn map in following format
{
<San name>: {
'initiator_port_wwn_list':
('200000051e55a100', '200000051e55a121'..)
'target_port_wwn_list':
('100000051e55a100', '100000051e55a121'..)
}
}
:raises: Exception when connection to fabric is failed
"""
device_map = {}
formatted_target_list = []
formatted_initiator_list = []
fabric_map = {}
fabric_names = self.configuration.fc_fabric_names
if not fabric_names:
raise exception.InvalidParameterValue(
err=_("Missing Fibre Channel SAN configuration "
"param - fc_fabric_names"))
fabrics = [x.strip() for x in fabric_names.split(',')]
LOG.debug("FC Fabric List: %s", fabrics)
if fabrics:
for t in target_wwn_list:
formatted_target_list.append(zm_utils.get_formatted_wwn(t))
for i in initiator_wwn_list:
formatted_initiator_list.append(zm_utils.get_formatted_wwn(i))
for fabric_name in fabrics:
self.switch_ip = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_address')
self.switch_user = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_user')
self.switch_pwd = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_password')
self.switch_port = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_port')
zoning_vsan = self.fabric_configs[fabric_name].safe_get(
'cisco_zoning_vsan')
# Get name server data from fabric and find the targets
# logged in
nsinfo = ''
LOG.debug("show fcns database for vsan %s", zoning_vsan)
nsinfo = self.get_nameserver_info(zoning_vsan)
LOG.debug("Lookup service:fcnsdatabase-%s", nsinfo)
LOG.debug("Lookup service:initiator list from caller-%s",
formatted_initiator_list)
LOG.debug("Lookup service:target list from caller-%s",
formatted_target_list)
visible_targets = [
x for x in nsinfo if x in formatted_target_list
]
visible_initiators = [
x for x in nsinfo if x in formatted_initiator_list
]
if visible_targets:
LOG.debug("Filtered targets is: %s", visible_targets)
# getting rid of the : before returning
for idx, elem in enumerate(visible_targets):
elem = str(elem).replace(':', '')
visible_targets[idx] = elem
else:
LOG.debug(
"No targets are in the fcns database"
" for vsan %s", zoning_vsan)
if visible_initiators:
# getting rid of the : before returning ~sk
for idx, elem in enumerate(visible_initiators):
elem = str(elem).replace(':', '')
visible_initiators[idx] = elem
else:
LOG.debug(
"No initiators are in the fcns database"
" for vsan %s", zoning_vsan)
fabric_map = {
'initiator_port_wwn_list': visible_initiators,
'target_port_wwn_list': visible_targets
}
device_map[zoning_vsan] = fabric_map
LOG.debug("Device map for SAN context: %s", device_map)
return device_map
def add_connection(self, fabric, initiator_target_map, host_name=None,
storage_system=None):
"""Concrete implementation of add_connection.
Based on zoning policy and state of each I-T pair, list of zone
members are created and pushed to the fabric to add zones. The
new zones created or zones updated are activated based on isActivate
flag set in storage.conf returned by volume driver after attach
operation.
:param fabric: Fabric name from storage.conf file
:param initiator_target_map: Mapping of initiator to list of targets
"""
LOG.debug("Add connection for Fabric: %s", fabric)
LOG.info(_LI("CiscoFCZoneDriver - Add connection "
"for I-T map: %s"), initiator_target_map)
fabric_ip = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_address')
fabric_user = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_user')
fabric_pwd = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_password')
fabric_port = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_port')
zoning_policy = self.configuration.zoning_policy
zoning_policy_fab = self.fabric_configs[fabric].safe_get(
'cisco_zoning_policy')
if zoning_policy_fab:
zoning_policy = zoning_policy_fab
zoning_vsan = self.fabric_configs[fabric].safe_get('cisco_zoning_vsan')
LOG.info(_LI("Zoning policy for Fabric %s"), zoning_policy)
statusmap_from_fabric = self.get_zoning_status(
fabric_ip, fabric_user, fabric_pwd, fabric_port, zoning_vsan)
if statusmap_from_fabric.get('session') == 'none':
cfgmap_from_fabric = self.get_active_zone_set(
fabric_ip, fabric_user, fabric_pwd, fabric_port, zoning_vsan)
zone_names = []
if cfgmap_from_fabric.get('zones'):
zone_names = cfgmap_from_fabric['zones'].keys()
# based on zoning policy, create zone member list and
# push changes to fabric.
for initiator_key in initiator_target_map.keys():
zone_map = {}
initiator = initiator_key.lower()
t_list = initiator_target_map[initiator_key]
if zoning_policy == 'initiator-target':
for t in t_list:
target = t.lower()
zone_members = [
zm_utils.get_formatted_wwn(initiator),
zm_utils.get_formatted_wwn(target)]
zone_name = (
driver_utils.get_friendly_zone_name(
zoning_policy,
initiator,
target,
host_name,
storage_system,
self.configuration.cisco_zone_name_prefix,
SUPPORTED_CHARS))
if (len(cfgmap_from_fabric) == 0 or (
zone_name not in zone_names)):
zone_map[zone_name] = zone_members
else:
# This is I-T zoning, skip if zone exists.
LOG.info(_LI("Zone exists in I-T mode. "
"Skipping zone creation %s"),
zone_name)
elif zoning_policy == 'initiator':
zone_members = [
zm_utils.get_formatted_wwn(initiator)]
for t in t_list:
target = t.lower()
zone_members.append(
zm_utils.get_formatted_wwn(target))
zone_name = (
driver_utils.get_friendly_zone_name(
zoning_policy,
initiator,
target,
host_name,
storage_system,
self.configuration.cisco_zone_name_prefix,
SUPPORTED_CHARS))
if len(zone_names) > 0 and (zone_name in zone_names):
zone_members = zone_members + filter(
lambda x: x not in zone_members,
cfgmap_from_fabric['zones'][zone_name])
zone_map[zone_name] = zone_members
else:
msg = _("Zoning Policy: %s, not"
" recognized") % zoning_policy
LOG.error(msg)
raise exception.FCZoneDriverException(msg)
LOG.info(_LI("Zone map to add: %s"), zone_map)
if len(zone_map) > 0:
conn = None
try:
conn = importutils.import_object(
self.configuration.cisco_sb_connector,
ipaddress=fabric_ip,
username=fabric_user,
password=fabric_pwd,
port=fabric_port,
vsan=zoning_vsan)
conn.add_zones(
zone_map, self.configuration.cisco_zone_activate,
zoning_vsan, cfgmap_from_fabric,
statusmap_from_fabric)
conn.cleanup()
except exception.CiscoZoningCliException as cisco_ex:
msg = _("Exception: %s") % six.text_type(cisco_ex)
raise exception.FCZoneDriverException(msg)
except Exception:
msg = _("Failed to add zoning configuration.")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
LOG.debug("Zones added successfully: %s", zone_map)
else:
LOG.debug("Zoning session exists VSAN: %s", zoning_vsan)
def get_san_context(self, target_wwn_list):
"""Lookup SAN context for visible end devices.
Look up each SAN configured and return a map of SAN (fabric IP) to
list of target WWNs visible to the fabric.
"""
formatted_target_list = []
fabric_map = {}
fabrics = [
x.strip() for x in self.configuration.fc_fabric_names.split(',')
]
LOG.debug("Fabric List: %s", fabrics)
LOG.debug("Target wwn List: %s", target_wwn_list)
if len(fabrics) > 0:
for t in target_wwn_list:
formatted_target_list.append(
zm_utils.get_formatted_wwn(t.lower()))
LOG.debug("Formatted Target wwn List: %s", formatted_target_list)
for fabric_name in fabrics:
fabric_ip = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_address')
fabric_user = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_user')
fabric_pwd = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_password')
fabric_port = self.fabric_configs[fabric_name].safe_get(
'cisco_fc_fabric_port')
zoning_vsan = self.fabric_configs[fabric_name].safe_get(
'cisco_zoning_vsan')
# Get name server data from fabric and get the targets
# logged in.
nsinfo = None
try:
conn = importutils.import_object(
self.configuration.cisco_sb_connector,
ipaddress=fabric_ip,
username=fabric_user,
password=fabric_pwd,
port=fabric_port,
vsan=zoning_vsan)
nsinfo = conn.get_nameserver_info()
LOG.debug("show fcns database info from fabric: %s",
nsinfo)
conn.cleanup()
except exception.CiscoZoningCliException:
with excutils.save_and_reraise_exception():
LOG.exception(
_LE("Error getting show fcns database "
"info."))
except Exception:
msg = _("Failed to get show fcns database info.")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
visible_targets = filter(lambda x: x in formatted_target_list,
nsinfo)
if visible_targets:
LOG.info(_LI("Filtered targets for SAN is: %s"),
{fabric_name: visible_targets})
# getting rid of the ':' before returning
for idx, elem in enumerate(visible_targets):
visible_targets[idx] = six.text_type(
visible_targets[idx]).replace(':', '')
fabric_map[fabric_name] = visible_targets
else:
LOG.debug("No targets are in the fcns info for SAN %s",
fabric_name)
LOG.debug("Return SAN context output: %s", fabric_map)
return fabric_map
def get_device_mapping_from_network(self, initiator_wwn_list,
target_wwn_list):
"""Provides the initiator/target map for available SAN contexts.
Looks up nameserver of each fc SAN configured to find logged in devices
and returns a map of initiator and target port WWNs for each fabric.
:param initiator_wwn_list: List of initiator port WWN
:param target_wwn_list: List of target port WWN
:returns: List -- device wwn map in following format
{
<San name>: {
'initiator_port_wwn_list':
('200000051e55a100', '200000051e55a121'..)
'target_port_wwn_list':
('100000051e55a100', '100000051e55a121'..)
}
}
:raises: Exception when connection to fabric is failed
"""
device_map = {}
formatted_target_list = []
formatted_initiator_list = []
fabric_map = {}
fabric_names = self.configuration.fc_fabric_names
fabrics = None
if not fabric_names:
raise exception.InvalidParameterValue(
err=_("Missing Fibre Channel SAN configuration "
"param - fc_fabric_names"))
fabrics = [x.strip() for x in fabric_names.split(',')]
LOG.debug("FC Fabric List: %s", fabrics)
if fabrics:
for t in target_wwn_list:
formatted_target_list.append(fczm_utils.get_formatted_wwn(t))
for i in initiator_wwn_list:
formatted_initiator_list.append(
fczm_utils.get_formatted_wwn(i))
for fabric_name in fabrics:
fabric_ip = self.fabric_configs[fabric_name].safe_get(
'fc_fabric_address')
# Get name server data from fabric and find the targets
# logged in
nsinfo = ''
try:
LOG.debug("Getting name server data for "
"fabric %s", fabric_ip)
conn = self._get_southbound_client(fabric_name)
nsinfo = conn.get_nameserver_info()
except exception.FCSanLookupServiceException:
with excutils.save_and_reraise_exception():
LOG.error(
_LE("Failed collecting name server info from"
" fabric %s"), fabric_ip)
except Exception as e:
msg = _("SSH connection failed "
"for %(fabric)s with error: %(err)s") % {
'fabric': fabric_ip,
'err': e
}
LOG.error(msg)
raise exception.FCSanLookupServiceException(message=msg)
LOG.debug("Lookup service:nsinfo-%s", nsinfo)
LOG.debug("Lookup service:initiator list from "
"caller-%s", formatted_initiator_list)
LOG.debug("Lookup service:target list from "
"caller-%s", formatted_target_list)
visible_targets = [
x for x in nsinfo if x in formatted_target_list
]
visible_initiators = [
x for x in nsinfo if x in formatted_initiator_list
]
if visible_targets:
LOG.debug("Filtered targets is: %s", visible_targets)
# getting rid of the : before returning
for idx, elem in enumerate(visible_targets):
elem = str(elem).replace(':', '')
visible_targets[idx] = elem
else:
LOG.debug("No targets are in the nameserver for SAN %s",
fabric_name)
if visible_initiators:
# getting rid of the : before returning ~sk
for idx, elem in enumerate(visible_initiators):
elem = str(elem).replace(':', '')
visible_initiators[idx] = elem
else:
LOG.debug(
"No initiators are in the nameserver "
"for SAN %s", fabric_name)
fabric_map = {
'initiator_port_wwn_list': visible_initiators,
'target_port_wwn_list': visible_targets
}
device_map[fabric_name] = fabric_map
LOG.debug("Device map for SAN context: %s", device_map)
return device_map
def delete_connection(self,
fabric,
initiator_target_map,
host_name=None,
storage_system=None):
"""Concrete implementation of delete_connection.
Based on zoning policy and state of each I-T pair, list of zones
are created for deletion. The zones are either updated deleted based
on the policy and attach/detach state of each I-T pair.
:param fabric: Fabric name from storage.conf file
:param initiator_target_map: Mapping of initiator to list of targets
"""
LOG.debug("Delete connection for fabric: %s", fabric)
LOG.info(_LI("CiscoFCZoneDriver - Delete connection for I-T map: %s"),
initiator_target_map)
fabric_ip = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_address')
fabric_user = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_user')
fabric_pwd = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_password')
fabric_port = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_port')
zoning_policy = self.configuration.zoning_policy
zoning_policy_fab = self.fabric_configs[fabric].safe_get(
'cisco_zoning_policy')
if zoning_policy_fab:
zoning_policy = zoning_policy_fab
zoning_vsan = self.fabric_configs[fabric].safe_get('cisco_zoning_vsan')
LOG.info(_LI("Zoning policy for fabric %s"), zoning_policy)
statusmap_from_fabric = self.get_zoning_status(fabric_ip, fabric_user,
fabric_pwd, fabric_port,
zoning_vsan)
if statusmap_from_fabric.get('session') == 'none':
cfgmap_from_fabric = self.get_active_zone_set(
fabric_ip, fabric_user, fabric_pwd, fabric_port, zoning_vsan)
zone_names = []
if cfgmap_from_fabric.get('zones'):
zone_names = cfgmap_from_fabric['zones'].keys()
# Based on zoning policy, get zone member list and push
# changes to fabric. This operation could result in an update
# for zone config with new member list or deleting zones from
# active cfg.
LOG.debug("zone config from Fabric: %s", cfgmap_from_fabric)
for initiator_key in initiator_target_map.keys():
initiator = initiator_key.lower()
formatted_initiator = zm_utils.get_formatted_wwn(initiator)
zone_map = {}
zones_to_delete = []
t_list = initiator_target_map[initiator_key]
if zoning_policy == 'initiator-target':
# In this case, zone needs to be deleted.
for t in t_list:
target = t.lower()
zone_name = (driver_utils.get_friendly_zone_name(
zoning_policy, initiator, target, host_name,
storage_system,
self.configuration.cisco_zone_name_prefix,
SUPPORTED_CHARS))
LOG.debug("Zone name to del: %s", zone_name)
if (len(zone_names) > 0 and (zone_name in zone_names)):
# delete zone.
LOG.debug("Added zone to delete to list: %s",
zone_name)
zones_to_delete.append(zone_name)
elif zoning_policy == 'initiator':
zone_members = [formatted_initiator]
for t in t_list:
target = t.lower()
zone_members.append(zm_utils.get_formatted_wwn(target))
zone_name = driver_utils.get_friendly_zone_name(
zoning_policy, initiator, target, host_name,
storage_system,
self.configuration.cisco_zone_name_prefix,
SUPPORTED_CHARS)
if (zone_names and (zone_name in zone_names)):
filtered_members = filter(
lambda x: x not in zone_members,
cfgmap_from_fabric['zones'][zone_name])
# The assumption here is that initiator is always
# there in the zone as it is 'initiator' policy.
# We find the filtered list and if it is non-empty,
# add initiator to it and update zone if filtered
# list is empty, we remove that zone.
LOG.debug("Zone delete - I mode: filtered targets: %s",
filtered_members)
if filtered_members:
filtered_members.append(formatted_initiator)
LOG.debug("Filtered zone members to update: %s",
filtered_members)
zone_map[zone_name] = filtered_members
LOG.debug("Filtered zone Map to update: %s",
zone_map)
else:
zones_to_delete.append(zone_name)
else:
LOG.info(_LI("Zoning Policy: %s, not recognized"),
zoning_policy)
LOG.debug("Final Zone map to update: %s", zone_map)
LOG.debug("Final Zone list to delete: %s", zones_to_delete)
conn = None
try:
conn = importutils.import_object(
self.configuration.cisco_sb_connector,
ipaddress=fabric_ip,
username=fabric_user,
password=fabric_pwd,
port=fabric_port,
vsan=zoning_vsan)
# Update zone membership.
if zone_map:
conn.add_zones(zone_map,
self.configuration.cisco_zone_activate,
zoning_vsan, cfgmap_from_fabric,
statusmap_from_fabric)
# Delete zones ~sk.
if zones_to_delete:
zone_name_string = ''
num_zones = len(zones_to_delete)
for i in range(0, num_zones):
if i == 0:
zone_name_string = (
'%s%s' %
(zone_name_string, zones_to_delete[i]))
else:
zone_name_string = ('%s%s%s' %
(zone_name_string, ';',
zones_to_delete[i]))
conn.delete_zones(
zone_name_string,
self.configuration.cisco_zone_activate,
zoning_vsan, cfgmap_from_fabric,
statusmap_from_fabric)
conn.cleanup()
except Exception:
msg = _("Failed to update or delete zoning configuration")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
LOG.debug("Zones deleted successfully: %s", zone_map)
else:
LOG.debug("Zoning session exists VSAN: %s", zoning_vsan)
def add_connection(self,
fabric,
initiator_target_map,
host_name=None,
storage_system=None):
"""Concrete implementation of add_connection.
Based on zoning policy and state of each I-T pair, list of zone
members are created and pushed to the fabric to add zones. The
new zones created or zones updated are activated based on isActivate
flag set in storage.conf returned by volume driver after attach
operation.
:param fabric: Fabric name from storage.conf file
:param initiator_target_map: Mapping of initiator to list of targets
"""
LOG.debug("Add connection for Fabric: %s", fabric)
LOG.info(_LI("CiscoFCZoneDriver - Add connection "
"for I-T map: %s"), initiator_target_map)
fabric_ip = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_address')
fabric_user = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_user')
fabric_pwd = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_password')
fabric_port = self.fabric_configs[fabric].safe_get(
'cisco_fc_fabric_port')
zoning_policy = self.configuration.zoning_policy
zoning_policy_fab = self.fabric_configs[fabric].safe_get(
'cisco_zoning_policy')
if zoning_policy_fab:
zoning_policy = zoning_policy_fab
zoning_vsan = self.fabric_configs[fabric].safe_get('cisco_zoning_vsan')
LOG.info(_LI("Zoning policy for Fabric %s"), zoning_policy)
statusmap_from_fabric = self.get_zoning_status(fabric_ip, fabric_user,
fabric_pwd, fabric_port,
zoning_vsan)
if statusmap_from_fabric.get('session') == 'none':
cfgmap_from_fabric = self.get_active_zone_set(
fabric_ip, fabric_user, fabric_pwd, fabric_port, zoning_vsan)
zone_names = []
if cfgmap_from_fabric.get('zones'):
zone_names = cfgmap_from_fabric['zones'].keys()
# based on zoning policy, create zone member list and
# push changes to fabric.
for initiator_key in initiator_target_map.keys():
zone_map = {}
initiator = initiator_key.lower()
t_list = initiator_target_map[initiator_key]
if zoning_policy == 'initiator-target':
for t in t_list:
target = t.lower()
zone_members = [
zm_utils.get_formatted_wwn(initiator),
zm_utils.get_formatted_wwn(target)
]
zone_name = (driver_utils.get_friendly_zone_name(
zoning_policy, initiator, target, host_name,
storage_system,
self.configuration.cisco_zone_name_prefix,
SUPPORTED_CHARS))
if (len(cfgmap_from_fabric) == 0
or (zone_name not in zone_names)):
zone_map[zone_name] = zone_members
else:
# This is I-T zoning, skip if zone exists.
LOG.info(
_LI("Zone exists in I-T mode. "
"Skipping zone creation %s"),
zone_name)
elif zoning_policy == 'initiator':
zone_members = [zm_utils.get_formatted_wwn(initiator)]
for t in t_list:
target = t.lower()
zone_members.append(
zm_utils.get_formatted_wwn(target))
zone_name = (driver_utils.get_friendly_zone_name(
zoning_policy, initiator, target, host_name,
storage_system,
self.configuration.cisco_zone_name_prefix,
SUPPORTED_CHARS))
if len(zone_names) > 0 and (zone_name in zone_names):
zone_members = zone_members + filter(
lambda x: x not in zone_members,
cfgmap_from_fabric['zones'][zone_name])
zone_map[zone_name] = zone_members
else:
msg = _("Zoning Policy: %s, not"
" recognized") % zoning_policy
LOG.error(msg)
raise exception.FCZoneDriverException(msg)
LOG.info(_LI("Zone map to add: %s"), zone_map)
if len(zone_map) > 0:
conn = None
try:
conn = importutils.import_object(
self.configuration.cisco_sb_connector,
ipaddress=fabric_ip,
username=fabric_user,
password=fabric_pwd,
port=fabric_port,
vsan=zoning_vsan)
conn.add_zones(zone_map,
self.configuration.cisco_zone_activate,
zoning_vsan, cfgmap_from_fabric,
statusmap_from_fabric)
conn.cleanup()
except exception.CiscoZoningCliException as cisco_ex:
msg = _("Exception: %s") % six.text_type(cisco_ex)
raise exception.FCZoneDriverException(msg)
except Exception:
msg = _("Failed to add zoning configuration.")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
LOG.debug("Zones added successfully: %s", zone_map)
else:
LOG.debug("Zoning session exists VSAN: %s", zoning_vsan)
def get_san_context(self, target_wwn_list):
"""Lookup SAN context for visible end devices.
Look up each SAN configured and return a map of SAN (fabric IP) to
list of target WWNs visible to the fabric.
"""
formatted_target_list = []
fabric_map = {}
fc_fabric_names = self.configuration.fc_fabric_names
fabrics = [x.strip() for x in fc_fabric_names.split(',')]
LOG.debug("Fabric List: %(fabrics)s", {'fabrics': fabrics})
LOG.debug("Target WWN list: %(targetwwns)s",
{'targetwwns': target_wwn_list})
if len(fabrics) > 0:
for t in target_wwn_list:
formatted_target_list.append(utils.get_formatted_wwn(t))
LOG.debug("Formatted target WWN list: %(targetlist)s",
{'targetlist': formatted_target_list})
for fabric_name in fabrics:
conn = self._get_southbound_client(fabric_name)
# Get name server data from fabric and get the targets
# logged in.
nsinfo = None
try:
nsinfo = conn.get_nameserver_info()
LOG.debug("Name server info from fabric: %(nsinfo)s",
{'nsinfo': nsinfo})
except (exception.BrocadeZoningCliException,
exception.BrocadeZoningHttpException):
if not conn.is_supported_firmware():
msg = _("Unsupported firmware on switch %s. Make sure "
"switch is running firmware v6.4 or higher"
) % conn.switch_ip
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
with excutils.save_and_reraise_exception():
LOG.exception(_LE("Error getting name server info."))
except Exception:
msg = _("Failed to get name server info.")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
finally:
conn.cleanup()
visible_targets = filter(
lambda x: x in formatted_target_list,
nsinfo)
if visible_targets:
LOG.info(_LI("Filtered targets for SAN is: %(targets)s"),
{'targets': visible_targets})
# getting rid of the ':' before returning
for idx, elem in enumerate(visible_targets):
visible_targets[idx] = str(
visible_targets[idx]).replace(':', '')
fabric_map[fabric_name] = visible_targets
else:
LOG.debug("No targets found in the nameserver "
"for fabric: %(fabric)s",
{'fabric': fabric_name})
LOG.debug("Return SAN context output: %(fabricmap)s",
{'fabricmap': fabric_map})
return fabric_map
def delete_connection(self, fabric, initiator_target_map, host_name=None,
storage_system=None):
"""Concrete implementation of delete_connection.
Based on zoning policy and state of each I-T pair, list of zones
are created for deletion. The zones are either updated deleted based
on the policy and attach/detach state of each I-T pair.
:param fabric: Fabric name from storage.conf file
:param initiator_target_map: Mapping of initiator to list of targets
"""
LOG.info(_LI("BrcdFCZoneDriver - Delete connection for fabric "
"%(fabric)s for I-T map: %(i_t_map)s"),
{'fabric': fabric,
'i_t_map': initiator_target_map})
zoning_policy = self.configuration.zoning_policy
zoning_policy_fab = self.fabric_configs[fabric].safe_get(
'zoning_policy')
zone_name_prefix = self.fabric_configs[fabric].safe_get(
'zone_name_prefix')
zone_activate = self.fabric_configs[fabric].safe_get(
'zone_activate')
if zoning_policy_fab:
zoning_policy = zoning_policy_fab
LOG.info(_LI("Zoning policy for fabric %(policy)s"),
{'policy': zoning_policy})
conn = self._get_southbound_client(fabric)
cfgmap_from_fabric = self._get_active_zone_set(conn)
zone_names = []
if cfgmap_from_fabric.get('zones'):
zone_names = cfgmap_from_fabric['zones'].keys()
# Based on zoning policy, get zone member list and push changes to
# fabric. This operation could result in an update for zone config
# with new member list or deleting zones from active cfg.
LOG.debug("zone config from Fabric: %(cfgmap)s",
{'cfgmap': cfgmap_from_fabric})
for initiator_key in initiator_target_map.keys():
initiator = initiator_key.lower()
formatted_initiator = utils.get_formatted_wwn(initiator)
zone_map = {}
zones_to_delete = []
t_list = initiator_target_map[initiator_key]
if zoning_policy == 'initiator-target':
# In this case, zone needs to be deleted.
for t in t_list:
target = t.lower()
zone_name = driver_utils.get_friendly_zone_name(
zoning_policy,
initiator,
target,
host_name,
storage_system,
zone_name_prefix,
SUPPORTED_CHARS)
LOG.debug("Zone name to delete: %(zonename)s",
{'zonename': zone_name})
if len(zone_names) > 0 and (zone_name in zone_names):
# delete zone.
LOG.debug("Added zone to delete to list: %(zonename)s",
{'zonename': zone_name})
zones_to_delete.append(zone_name)
elif zoning_policy == 'initiator':
zone_members = [formatted_initiator]
for t in t_list:
target = t.lower()
zone_members.append(utils.get_formatted_wwn(target))
zone_name = driver_utils.get_friendly_zone_name(
zoning_policy,
initiator,
target,
host_name,
storage_system,
zone_name_prefix,
SUPPORTED_CHARS)
if (zone_names and (zone_name in zone_names)):
filtered_members = filter(
lambda x: x not in zone_members,
cfgmap_from_fabric['zones'][zone_name])
# The assumption here is that initiator is always there
# in the zone as it is 'initiator' policy. We find the
# filtered list and if it is non-empty, add initiator
# to it and update zone if filtered list is empty, we
# remove that zone.
LOG.debug("Zone delete - initiator mode: "
"filtered targets: %(targets)s",
{'targets': filtered_members})
if filtered_members:
filtered_members.append(formatted_initiator)
LOG.debug("Filtered zone members to update: "
"%(members)s", {'members': filtered_members})
zone_map[zone_name] = filtered_members
LOG.debug("Filtered zone map to update: %(zonemap)s",
{'zonemap': zone_map})
else:
zones_to_delete.append(zone_name)
else:
LOG.warning(_LW("Zoning policy not recognized: %(policy)s"),
{'policy': zoning_policy})
LOG.debug("Final zone map to update: %(zonemap)s",
{'zonemap': zone_map})
LOG.debug("Final zone list to delete: %(zones)s",
{'zones': zones_to_delete})
try:
# Update zone membership.
if zone_map:
conn.add_zones(
zone_map, zone_activate,
cfgmap_from_fabric)
# Delete zones ~sk.
if zones_to_delete:
zone_name_string = ''
num_zones = len(zones_to_delete)
for i in range(0, num_zones):
if i == 0:
zone_name_string = (
'%s%s' % (
zone_name_string, zones_to_delete[i]))
else:
zone_name_string = '%s;%s' % (
zone_name_string, zones_to_delete[i])
conn.delete_zones(
zone_name_string, zone_activate,
cfgmap_from_fabric)
except (exception.BrocadeZoningCliException,
exception.BrocadeZoningHttpException) as brocade_ex:
raise exception.FCZoneDriverException(brocade_ex)
except Exception:
msg = _("Failed to update or delete zoning "
"configuration.")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
finally:
conn.cleanup()
def add_connection(self, fabric, initiator_target_map, host_name=None,
storage_system=None):
"""Concrete implementation of add_connection.
Based on zoning policy and state of each I-T pair, list of zone
members are created and pushed to the fabric to add zones. The
new zones created or zones updated are activated based on isActivate
flag set in storage.conf returned by volume driver after attach
operation.
:param fabric: Fabric name from storage.conf file
:param initiator_target_map: Mapping of initiator to list of targets
"""
LOG.info(_LI("BrcdFCZoneDriver - Add connection for fabric "
"%(fabric)s for I-T map: %(i_t_map)s"),
{'fabric': fabric,
'i_t_map': initiator_target_map})
zoning_policy = self.configuration.zoning_policy
zoning_policy_fab = self.fabric_configs[fabric].safe_get(
'zoning_policy')
zone_name_prefix = self.fabric_configs[fabric].safe_get(
'zone_name_prefix')
zone_activate = self.fabric_configs[fabric].safe_get(
'zone_activate')
if zoning_policy_fab:
zoning_policy = zoning_policy_fab
LOG.info(_LI("Zoning policy for Fabric %(policy)s"),
{'policy': zoning_policy})
if (zoning_policy != 'initiator'
and zoning_policy != 'initiator-target'):
LOG.info(_LI("Zoning policy is not valid, "
"no zoning will be performed."))
return
client = self._get_southbound_client(fabric)
cfgmap_from_fabric = self._get_active_zone_set(client)
zone_names = []
if cfgmap_from_fabric.get('zones'):
zone_names = cfgmap_from_fabric['zones'].keys()
# based on zoning policy, create zone member list and
# push changes to fabric.
for initiator_key in initiator_target_map.keys():
zone_map = {}
initiator = initiator_key.lower()
target_list = initiator_target_map[initiator_key]
if zoning_policy == 'initiator-target':
for target in target_list:
zone_members = [utils.get_formatted_wwn(initiator),
utils.get_formatted_wwn(target)]
zone_name = driver_utils.get_friendly_zone_name(
zoning_policy,
initiator,
target,
host_name,
storage_system,
zone_name_prefix,
SUPPORTED_CHARS)
if (len(cfgmap_from_fabric) == 0 or (
zone_name not in zone_names)):
zone_map[zone_name] = zone_members
else:
# This is I-T zoning, skip if zone already exists.
LOG.info(_LI("Zone exists in I-T mode. Skipping "
"zone creation for %(zonename)s"),
{'zonename': zone_name})
elif zoning_policy == 'initiator':
zone_members = [utils.get_formatted_wwn(initiator)]
for target in target_list:
zone_members.append(utils.get_formatted_wwn(target))
zone_name = driver_utils.get_friendly_zone_name(
zoning_policy,
initiator,
target,
host_name,
storage_system,
zone_name_prefix,
SUPPORTED_CHARS)
if len(zone_names) > 0 and (zone_name in zone_names):
zone_members = zone_members + filter(
lambda x: x not in zone_members,
cfgmap_from_fabric['zones'][zone_name])
zone_map[zone_name] = zone_members
LOG.info(_LI("Zone map to add: %(zonemap)s"),
{'zonemap': zone_map})
if len(zone_map) > 0:
try:
client.add_zones(
zone_map, zone_activate,
cfgmap_from_fabric)
except (exception.BrocadeZoningCliException,
exception.BrocadeZoningHttpException) as brocade_ex:
raise exception.FCZoneDriverException(brocade_ex)
except Exception:
msg = _("Failed to add zoning configuration.")
LOG.exception(msg)
raise exception.FCZoneDriverException(msg)
LOG.debug("Zones added successfully: %(zonemap)s",
{'zonemap': zone_map})
client.cleanup()