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authorSimon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>2012-10-15 22:38:04 +0200
committerAntonio Quartulli <ordex@autistici.org>2012-11-21 12:34:48 +0100
commitc76d15253aeaf8ee3beee932d1950296431bec96 (patch)
treeb4321a31fd8967510ead28ba157da8ee3182d7c2
parent981d8900291108eebf187fd77736f751e99b6ffd (diff)
batman-adv: fix bla compare function
The address and the VLAN VID may not be packed in the respective structs. Fix this by comparing the elements individually. Reported-by: Marek Lindner <lindner_marek@yahoo.de> Reported-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
-rw-r--r--net/batman-adv/bridge_loop_avoidance.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index bda8b1710806..7ffef8b2d4cd 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -77,8 +77,15 @@ static int batadv_compare_backbone_gw(const struct hlist_node *node,
{
const void *data1 = container_of(node, struct batadv_backbone_gw,
hash_entry);
+ const struct batadv_backbone_gw *gw1 = data1, *gw2 = data2;
- return (memcmp(data1, data2, ETH_ALEN + sizeof(short)) == 0 ? 1 : 0);
+ if (!batadv_compare_eth(gw1->orig, gw2->orig))
+ return 0;
+
+ if (gw1->vid != gw2->vid)
+ return 0;
+
+ return 1;
}
/* compares address and vid of two claims */
@@ -87,8 +94,15 @@ static int batadv_compare_claim(const struct hlist_node *node,
{
const void *data1 = container_of(node, struct batadv_claim,
hash_entry);
+ const struct batadv_claim *cl1 = data1, *cl2 = data2;
- return (memcmp(data1, data2, ETH_ALEN + sizeof(short)) == 0 ? 1 : 0);
+ if (!batadv_compare_eth(cl1->addr, cl2->addr))
+ return 0;
+
+ if (cl1->vid != cl2->vid)
+ return 0;
+
+ return 1;
}
/* free a backbone gw */