svn commit: r195190 - projects/mesh11s/sys/net80211

[Rui Paulo]

Author: rpaulo
Date: Tue Jun 30 13:38:14 2009
New Revision: 195190
URL: http://svn.freebsd.org/changeset/base/195190

Log:
  Add a helper function to detect duplicates.
  
  Sponsored by:	The FreeBSD Foundation

Modified:
  projects/mesh11s/sys/net80211/ieee80211_hwmp.c
  projects/mesh11s/sys/net80211/ieee80211_hwmp.h

Modified: projects/mesh11s/sys/net80211/ieee80211_hwmp.c
==============================================================================
--- projects/mesh11s/sys/net80211/ieee80211_hwmp.c	Tue Jun 30 12:35:47 2009	(r195189)
+++ projects/mesh11s/sys/net80211/ieee80211_hwmp.c	Tue Jun 30 13:38:14 2009	(r195190)
@@ -1165,6 +1165,26 @@ ieee80211_hwmp_find_txnode(struct ieee80
 	return ieee80211_find_txnode(vap, rt->rt_nexthop);
 }
 
+int
+ieee80211_hwmp_checkpseq(struct ieee80211vap *vap,
+    uint8_t source[IEEE80211_ADDR_LEN], uint32_t seq)
+{
+	struct ieee80211_hwmp_route *rt;
+
+	rt = hwmp_rt_find(vap, source);
+	if (rt == NULL) {
+		rt = hwmp_rt_add(vap, source);
+		rt->rt_lastpseq = seq;
+		return 0;
+	}
+	if (rt->rt_lastpseq >= seq)
+		return 1;
+	else {
+		rt->rt_lastpseq = seq;
+		return 0;
+	}
+}
+
 static int
 hwmp_ioctl_get80211(struct ieee80211vap *vap, struct ieee80211req *ireq)
 {

Modified: projects/mesh11s/sys/net80211/ieee80211_hwmp.h
==============================================================================
--- projects/mesh11s/sys/net80211/ieee80211_hwmp.h	Tue Jun 30 12:35:47 2009	(r195189)
+++ projects/mesh11s/sys/net80211/ieee80211_hwmp.h	Tue Jun 30 13:38:14 2009	(r195190)
@@ -48,6 +48,8 @@ struct ieee80211_hwmp_route {
 	uint8_t			rt_prevhop[IEEE80211_ADDR_LEN];
 	uint32_t		rt_lifetime;
 	int			rt_preqretries;
+	uint32_t		rt_lastpseq;	/* last mesh seq number
+						   from this node */
 };
 
 #ifdef _KERNEL
@@ -76,8 +78,10 @@ void	ieee80211_hwmp_recv_action(struct i
 struct ieee80211_node *ieee80211_hwmp_discover(struct ieee80211vap *,
     uint8_t [IEEE80211_ADDR_LEN], struct mbuf *);
 struct ieee80211_node *
-ieee80211_hwmp_find_txnode(struct ieee80211vap *vap,
+	ieee80211_hwmp_find_txnode(struct ieee80211vap *vap,
     uint8_t dest[IEEE80211_ADDR_LEN]);
+int	ieee80211_hwmp_checkpseq(struct ieee80211vap *,
+        uint8_t [IEEE80211_ADDR_LEN], uint32_t);
 void	ieee80211_hwmp_peerdown(struct ieee80211_node *);
 #endif /* _KERNEL */