def __del_handler_validate(self, key):
"""
Validate "DEL" method parameters
:param key: a key of "DEL" message
:return: True if parameters are valid, False if parameters are invalid
"""
if not self.key_re.match(key):
log_err(
"BGPAllowListMgr::Received BGP ALLOWED 'DEL' message with invalid key: '$s'"
% key)
return False
return True
def remove_slot(self, db, table):
"""
Remove an object from the storage
:param db: db name
:param table: table name
"""
slot = self.get_slot_name(db, table)
if slot in self.data:
del self.data[slot]
else:
log_err(
"Directory: Can't remove slot '%s'. The slot doesn't exist" %
slot)
def remove(self, db, table, key):
"""
Remove a value from the storage
:param db: db name
:param table: table name
:param key: key to remove
"""
slot = self.get_slot_name(db, table)
if slot in self.data:
if key in self.data[slot]:
del self.data[slot][key]
else:
log_err(
"Directory: Can't remove key '%s' from slot '%s'. The key doesn't exist"
% (key, slot))
else:
log_err(
"Directory: Can't remove key '%s' from slot '%s'. The slot doesn't exist"
% (key, slot))
def __set_handler_validate(self, key, data):
"""
Validate parameters of a "Set" message
:param key: ket of the 'SET' message
:param data: data of the 'SET' message
:return: True if parameters are valid, False if parameters are invalid
"""
if data is None:
log_err(
"BGPAllowListMgr::Received BGP ALLOWED 'SET' message without data"
)
return False
if not self.key_re.match(key):
log_err(
"BGPAllowListMgr::Received BGP ALLOWED 'SET' message with invalid key: '%s'"
% key)
return False
prefixes_v4 = []
prefixes_v6 = []
if "prefixes_v4" in data:
prefixes_v4 = str(data["prefixes_v4"]).split(",")
if not all(
TemplateFabric.is_ipv4(prefix) for prefix in prefixes_v4):
arguments = "prefixes_v4", str(data["prefixes_v4"])
log_err(
"BGPAllowListMgr::Received BGP ALLOWED 'SET' message with invalid input[%s]:'%s'"
% arguments)
return False
if "prefixes_v6" in data:
prefixes_v6 = str(data["prefixes_v6"]).split(",")
if not all(
TemplateFabric.is_ipv6(prefix) for prefix in prefixes_v6):
arguments = "prefixes_v6", str(data["prefixes_v6"])
log_err(
"BGPAllowListMgr::Received BGP ALLOWED 'SET' message with invalid input[%s]:'%s'"
% arguments)
return False
if not prefixes_v4 and not prefixes_v6:
log_err(
"BGPAllowListMgr::Received BGP ALLOWED 'SET' message with no prefixes specified: %s"
% str(data))
return False
return True
def handler(self, key, op, data):
"""
This method is executed on each add/remove event on the table.
:param key: key of the table entry
:param op: operation on the table entry. Could be either 'SET' or 'DEL'
:param data: associated data of the event. Empty for 'DEL' operation.
"""
if op == swsscommon.SET_COMMAND:
if self.directory.available_deps(self.deps): # all required dependencies are set in the Directory?
res = self.set_handler(key, data)
if not res: # set handler returned False, which means it is not ready to process is. Save it for later.
log_debug("'SET' handler returned NOT_READY for the Manager: %s" % self.__class__)
self.set_queue.append((key, data))
else:
log_debug("Not all dependencies are met for the Manager: %s" % self.__class__)
self.set_queue.append((key, data))
elif op == swsscommon.DEL_COMMAND:
self.del_handler(key)
else:
log_err("Invalid operation '%s' for key '%s'" % (op, key))
def del_handler(self, key):
""" Placeholder for 'DEL' command """
log_err("del_handler wasn't implemented for %s" % self.__class__.__name__)
def set_handler(self, key, data):
""" Placeholder for 'SET' command """
log_err("set_handler() wasn't implemented for %s" % self.__class__.__name__)