batman-adv: Fix broadcast duplist for fragmentation
If the skb is fragmented, the checksum must be computed on the
individual fragments, just using skb->data may fail on fragmented
data. Instead of doing linearizing the packet, use the new
batadv_crc32 to do that more efficiently- it should not hurt
replacing the old crc16 by the new crc32.
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>
diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h
index 789cb73..196d9a0 100644
--- a/net/batman-adv/bridge_loop_avoidance.h
+++ b/net/batman-adv/bridge_loop_avoidance.h
@@ -31,8 +31,7 @@
void *offset);
int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig);
int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
- struct batadv_bcast_packet *bcast_packet,
- int hdr_size);
+ struct sk_buff *skb);
void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
struct batadv_hard_iface *primary_if,
struct batadv_hard_iface *oldif);
@@ -81,8 +80,7 @@
static inline int
batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
- struct batadv_bcast_packet *bcast_packet,
- int hdr_size)
+ struct sk_buff *skb)
{
return 0;
}