allow BRIDGE_TYPE=NONE option

fw.py

@@ -4,8 +4,7 @@ import re
 import json
 import logging
 
-from ovs import Switch, Bridge
-from utils import (ns_exec, sudo, ADDRESSES,
+from utils import (ns_exec, sudo, ADDRESSES, get_network_type,
                    dhcp_no_free_re, dhcp_ack_re)
 
 DHCP_LOGFILE = getenv('DHCP_LOGFILE', '/var/log/syslog')
@@ -26,12 +25,6 @@ celery.conf.update(CELERY_CACHE_BACKEND=CACHE_URI,
 logger = logging.getLogger(__name__)
 
 
-if getenv('BRIDGE_TYPE', 'OVS') == 'BRIDGE':
-    network_type = Bridge
-else:
-    network_type = Switch
-
-
 @task(name="firewall.reload_firewall")
 def reload_firewall(data4, data6, save_config=True):
     try:
@@ -50,6 +43,11 @@ def reload_firewall(data4, data6, save_config=True):
 
 @task(name="firewall.reload_firewall_vlan")
 def reload_firewall_vlan(data, save_config=True):
+    network_type = get_network_type()
+    if network_type is None:
+        logger.info("Ignored reload_firewall_vlan() network type=%s",
+                    network_type)
+        return
     # Add additional addresses from config
     for k, v in ADDRESSES.items():
         data[k]['addresses'] += v

utils.py

@@ -13,6 +13,16 @@ MAC = getenv('MAC')
 ADDRESSES = json.loads(getenv('ADDRESSES', '{}'))
 HA = bool(getenv('HA', False))
 
+
+def get_network_type():
+    from ovs import Switch, Bridge
+    if getenv('BRIDGE_TYPE', 'OVS') == 'BRIDGE':
+        return Bridge
+    elif getenv('BRIDGE_TYPE', 'OVS') == 'NONE':
+        return None
+    else:
+        return Switch
+
 # 2013-06-26 12:16:59 DHCPACK on 10.4.0.14 to 5c:b5:24:e6:5c:81
 #      (android_b555bfdba7c837d) via vlan0004
 
@@ -45,5 +55,8 @@ def sudo(args, stdin=None):
 
 
 def ns_exec(args, stdin=None):
-    return sudo(('/sbin/ip', 'netns', 'exec',
-                NETNS) + args, stdin)
+    if get_network_type() is None:
+        return sudo(args, stdin)
+    else:
+        return sudo(('/sbin/ip', 'netns', 'exec',
+                    NETNS) + args, stdin)