def _cleanup_definitions(self, vfab_id, vlanid, ports, config, mac,
commit=False):
"""Cleanup existing LAG/VLAN/interface definitions.
@param self CFABdriver's instance
@param vfab_id the string of VFAB ID
@param vlanid the string of VLAN ID
@param ports string of the ports which is separated by ','
@param config string of candidate-config
@param mac string of the MAC address
@param commit the boolean whether executes commit or not
@return A string of modified ifgroups for vfab vlan or None
"""
self._dissociate_mac_from_port_profile(vfab_id, vlanid, mac,
config=config,
do_not_commit=True)
lag_id = _get_associated_lag_id(ports, config)
commit_interface = True if (commit and not lag_id) else False
self._clear_interfaces(ports, commit=commit_interface)
if commit_interface:
LOG.debug(_('Skip clearing VLAN and LAG.'))
return None
modified = self._clear_vlans(vfab_id, ports, config, lag_id=lag_id)
if lag_id:
LOG.debug(_('Found LAG%s definiton and clear.'), lag_id)
self._clear_lag(vfab_id, lag_id, ports, config, commit=commit)
return modified.get(str(vlanid), None)
def _validate_pprofile_prefix(self):
if len(self._pprofile_prefix) > (28 if self._share_pprofile else 15):
raise ValueError(_("pprofile_prefix is too long."))
if (self._pprofile_prefix.find('"') >= 0 or
self._pprofile_prefix.find("|") >= 0 or
self._pprofile_prefix.find("?") >= 0):
raise ValueError(_("pprofile_prefix contains illegal character."))
def _setup_vfab_vlan(self, vfab_id, vlanid, ifgroup_id, config, ifg=None,
port_type=_EP, vlan_type='untag', commit=False):
"""Setup VFAB VLAN configuration."""
# Judge the result of cleanup process.
# ifg is None
# 'ifgroup' for vfab vlan hasn't changed at all.
# ifg is ''(Empty string)
# The definition of vfab vlan has been deleted in cleanup.
# ifg is String(Not empty)
# 'ifgroup' for vfab vlan has been changed in cleanup.
modified = True if ifg is not None else False
ifgroups = ifg if modified else _get_ifgroups_of_vfab_vlan(
vfab_id, vlanid, config)
# Need to re-define for the vfab vlan.
if modified and ifg is '':
ifgroups = None
if _is_ifgroup_included(ifgroup_id, ifgroups):
LOG.debug(_("ifgroup %(if_id)s has already configured"
"in %(ifgs)s"), dict(if_id=ifgroup_id, ifgs=ifgroups))
elif ifgroups is None:
ifgroups = str(ifgroup_id)
else:
ifgroups += "," + str(ifgroup_id)
cmds = [
"vfab {vfab} vlan {vlan} {port_type} {vlan_type} {ifgroup}".format(
vfab=vfab_id, vlan=vlanid, port_type=port_type,
vlan_type=vlan_type, ifgroup=ifgroups)]
self.mgr.configure(cmds, commit=commit)
def _get_all_vfab_vlans_and_ifgroups(vfab_id, config, vlan_type='untag'):
"""Gets all VFAB VLAN definitions and ifgroups.
@param vfab_id the string of VFAB ID
@param config the string of candidate-config
@param vlan_type 'untag(default)' or 'tag'.
@return the string of ifgroups otherwise None
"""
match = re.findall(_VFAB_VLANS.format(v=vfab_id, vlan_type=vlan_type),
config, re.MULTILINE)
result = dict(match)
if result:
LOG.debug(_('VFAB(%(vfab)s){VLANID: ifgroups}:%(result)s'),
dict(vfab=vfab_id, result=result))
else:
LOG.debug(_('VLAN and ifgroups not found.'))
return result
def _clear_vlans(self, vfab_id, ports, config, port_type=_EP,
vlan_type='untag', lag_id=None, commit=False):
"""Clear all VLAN definitions with specified ports.
@param self CFABdriver's instance
@param vfab_id the string of VFAB ID
@param ports a string of the ports which is separated by ','
@param config a string of a candidate-config
@return None or string of the modified ifgroups separated by ','
"""
# (yushiro): ifgroup won't delete because it can not determine
# whether ifgroup is created by plugin or not.
indices = search_ifgroup_indices(ports, config, lag_id=lag_id)
vlan_ifgs = _get_all_vfab_vlans_and_ifgroups(vfab_id, config,
vlan_type='untag')
updated_vlan_ifgs = copy.deepcopy(vlan_ifgs)
cmds = []
for vlanid in sorted(vlan_ifgs.keys()):
vlan = str(vlanid)
is_delete = False
# Target ifgroup_ids exists but vfab vlan definition does not exist
# or ifgroup_id doesn't exist but vfab vlan definition exists.
if None in [vlan_ifgs[vlan]] or not indices:
LOG.debug(_("ifgroup with %(p)s for VLAN(%(v)s)has already"
"deleted. Skip clear_vlan."), dict(p=ports,
v=vlanid))
continue
eliminated = fj_util.eliminate_val(vlan_ifgs[vlan], indices)
updated_vlan_ifgs[vlan] = eliminated
# VLAN is configured with the only ifgroup_id
if not eliminated:
is_delete = True
common_def = "vfab {vfab} vlan {vlan} {port_type} {vlan_type}"
# Delete VFAB VLAN definition
if is_delete:
command = "no" + " " + common_def
cmds.append(command.format(vfab=vfab_id, vlan=vlanid,
port_type=port_type,
vlan_type=vlan_type))
# Reject ifgroup_id from VFAB VLAN definition
else:
command = common_def + " " + "{ifgroup}"
cmds.append(command.format(vfab=vfab_id, vlan=vlanid,
port_type=port_type,
vlan_type=vlan_type,
ifgroup=eliminated))
self.mgr.configure(cmds, commit=commit)
return updated_vlan_ifgs
def search_ifgroup_indices(ports, candidate_config, lag_id=None):
"""Search ifgroup ids with specified ports."""
reg = r"^ifgroup\s+(\d+)\s+ether\s+{ports}$".format(ports=ports)
if lag_id:
domain_id = _get_domain_id(ports)
reg = r"^ifgroup\s+(\d+)\s+{if_type}\s+{domain_id}\s+{lag_id}$".format(
if_type=_LAG, domain_id=domain_id, lag_id=lag_id)
match = re.findall(reg, candidate_config, re.MULTILINE)
if match:
ifgroup_indices = sorted([int(m) for m in match])
LOG.debug(_('Found ifgroup for port(%(p)s):%(ifg)s'),
dict(p=ports, ifg=ifgroup_indices))
return ifgroup_indices
return []
def _get_associated_lag_id(ports, config):
"""Get lag_id which is associated to the ports."""
ids = []
interfaces = ports.split(",")
for port in interfaces:
match = re.search(
r'^interface\s+{port}$\n((?:\s+.+\n)'
r'*(\s+type\s+{port_type}\s+(\d+))(?:\s+.+\n)*)\s+exit$'.format(
port=port, port_type='linkaggregation'), config, re.MULTILINE)
if match:
ids.append(match.group(3))
lag_ids = list(set(ids))
if not lag_ids:
return None
if len(lag_ids) > 1:
LOG.warning(
_LW("Each port%(ports)s has different LAG ids(%(lag_ids)s)"),
dict(ports=ports, lag_ids=lag_ids))
LOG.debug(_("Associated LAG%(lag_ids)s with interfaces:%(ports)s"),
dict(lag_ids=lag_ids, ports=ports))
return sorted(lag_ids)[0]
def eliminate_val(source, reject):
"""Eliminate specified value from range value.
ex. source='1,2,3-10', reject=[1], result: '2,3-10'
@param source a string of range definition separated with ","
ex. "1,2,3" or "1-5"(same as "1,2,3,4,5")
@param reject a list of integer to reject. ex. [1, 2]
@return eliminated a string of eliminated value separated with ","
"""
if source is None:
return
values = [str(i) for i in reject]
rejected = source.split(',')
found = False
for val in values:
for target in rejected:
m = RANGE_DEFINITION.match(target)
if m:
low = m.group(1)
high = m.group(2)
if val in target:
rejected.remove(target)
# matches the lowest one
if (val == low):
# Case: source is "1-2" and target is "1"
if ((int(val) + 1) == int(high)):
rejected.append(high)
else:
rejected.append(str(int(val) + 1) + "-" + high)
found = True
break
# matches the highest one
else:
# Ex. source is "1-2" and target is "2"
if ((int(val) - 1) == int(low)):
rejected.append(low)
else:
rejected.append(low + "-" + str(int(val) - 1))
found = True
break
# matches between lower one and higher one
elif (int(low) < int(val) and int(val) < int(high)):
rejected.remove(target)
# Ex. source is "1-n" and target is "2"
if ((int(val) - 1) == int(low)):
rejected.append(low)
# Ex. source is "1-3" and target is "2"
if ((int(val) + 1) == int(high)):
rejected.append(high)
# Ex. source is "1-4" and target is "2"
else:
rejected.append(str(int(val) + 1) + "-" + high)
# Ex. source is "n-5" and target is "4"(n is NOT "3")
elif ((int(val) + 1) == int(high)):
rejected.append(high)
rejected.append(low + "-" + str(int(val) - 1))
# Ex. source is "1-5" and target is "3"
else:
rejected.append(low + "-" + str(int(val) - 1))
rejected.append(str(int(val) + 1) + "-" + high)
found = True
break
# source is not defined with range "-"
elif val == target:
rejected.remove(target)
found = True
break
if not found:
LOG.debug(_('Reject target doesn\'t exist.'))
return ','.join(rejected)
