[acl_loader] Fix bugs in acl_loader (#991)

- Support protocol number == 0
- Emit warning if --table_name not found in Config DB

Signed-off-by: Danny Allen <daall@microsoft.com>

acl_loader/main.py

@@ -244,6 +244,9 @@ def set_table_name(self, table_name):
  :param table_name: Table name
  :return:
  """
+ if not self.is_table_valid(table_name):
+ warning("Table \"%s\" not found" % table_name)
+
  self.current_table = table_name
 
  def set_session_name(self, session_name):
@@ -412,7 +415,7 @@ def convert_l2(self, table_name, rule_idx, rule):
  def convert_ip(self, table_name, rule_idx, rule):
  rule_props = {}
 
- if rule.ip.config.protocol:
+ if rule.ip.config.protocol or rule.ip.config.protocol == 0: # 0 is a valid protocol number
  if self.ip_protocol_map.has_key(rule.ip.config.protocol):
  rule_props["IP_PROTOCOL"] = self.ip_protocol_map[rule.ip.config.protocol]
  else: