Index: sys/netgraph/ng_bridge.c
===================================================================
--- sys/netgraph/ng_bridge.c
+++ sys/netgraph/ng_bridge.c
@@ -93,6 +93,7 @@
 	u_int16_t			loopCount;	/* loop ignore timer */
 	struct ng_bridge_link_stats	stats;		/* link stats */
 };
+typedef struct ng_bridge_link const *link_cp;		/* read only access */
 
 /* Per-node private data */
 struct ng_bridge_private {
@@ -107,6 +108,7 @@
 	struct callout		timer;		/* one second periodic timer */
 };
 typedef struct ng_bridge_private *priv_p;
+typedef struct ng_bridge_private const *priv_cp;   /* read only access */
 
 /* Information about a host, stored in a hash table entry */
 struct ng_bridge_hent {
@@ -315,6 +317,12 @@
 	 * GB ethernets so it should be fixed. 
 	 * When it's fixed the process SHOULD NOT SLEEP, spinlocks please!
 	 * (and atomic ops )
+	 *
+	 * TODO:
+	 *   - revdata path works on const node data
+	 *   - modify the the host table via control messages only
+	 *   - stat used the counter framework
+	 *   - remove the WRITER limitation
 	 */
 	NG_NODE_FORCE_WRITER(node);
 	NG_NODE_SET_PRIVATE(node, priv);