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Diffstat (limited to 'net/batman-adv/routing.c')
-rw-r--r--net/batman-adv/routing.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 2f1f88923df8..b27a4d792d15 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -939,7 +939,7 @@ out:
}
static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
- struct sk_buff *skb) {
+ struct sk_buff *skb, int hdr_len) {
uint8_t curr_ttvn, old_ttvn;
struct batadv_orig_node *orig_node;
struct ethhdr *ethhdr;
@@ -948,7 +948,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
int is_old_ttvn;
/* check if there is enough data before accessing it */
- if (pskb_may_pull(skb, sizeof(*unicast_packet) + ETH_HLEN) < 0)
+ if (pskb_may_pull(skb, hdr_len + ETH_HLEN) < 0)
return 0;
/* create a copy of the skb (in case of for re-routing) to modify it. */
@@ -956,7 +956,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
return 0;
unicast_packet = (struct batadv_unicast_packet *)skb->data;
- ethhdr = (struct ethhdr *)(skb->data + sizeof(*unicast_packet));
+ ethhdr = (struct ethhdr *)(skb->data + hdr_len);
/* check if the destination client was served by this node and it is now
* roaming. In this case, it means that the node has got a ROAM_ADV
@@ -1072,8 +1072,7 @@ int batadv_recv_unicast_packet(struct sk_buff *skb,
if (check < 0)
return NET_RX_DROP;
-
- if (!batadv_check_unicast_ttvn(bat_priv, skb))
+ if (!batadv_check_unicast_ttvn(bat_priv, skb, hdr_size))
return NET_RX_DROP;
/* packet for me */
@@ -1117,7 +1116,7 @@ int batadv_recv_ucast_frag_packet(struct sk_buff *skb,
if (batadv_check_unicast_packet(bat_priv, skb, hdr_size) < 0)
return NET_RX_DROP;
- if (!batadv_check_unicast_ttvn(bat_priv, skb))
+ if (!batadv_check_unicast_ttvn(bat_priv, skb, hdr_size))
return NET_RX_DROP;
unicast_packet = (struct batadv_unicast_frag_packet *)skb->data;