From: Andreas Langer <an.langer@xxxxxx>
If a packet is too big to be forwarded over an interface it will be
fragmented on-the-fly (if fragmentation is enabled).
Signed-off-by: Andreas Langer <an.langer@xxxxxx>
Signed-off-by: Sven Eckelmann <sven.eckelmann@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/staging/batman-adv/routing.c | 6 ++++++
drivers/staging/batman-adv/unicast.c | 4 ++--
drivers/staging/batman-adv/unicast.h | 2 ++
3 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/batman-adv/routing.c b/drivers/staging/batman-adv/routing.c
index 9b61d6b..1e10111 100644
--- a/drivers/staging/batman-adv/routing.c
+++ b/drivers/staging/batman-adv/routing.c
@@ -1165,6 +1165,12 @@ static int route_unicast_packet(struct sk_buff *skb,
unicast_packet = (struct unicast_packet *)skb->data;
+ if (unicast_packet->packet_type == BAT_UNICAST &&
+ atomic_read(&bat_priv->frag_enabled) &&
+ skb->len > batman_if->net_dev->mtu)
+ return frag_send_skb(skb, bat_priv, batman_if,
+ dstaddr);
+
/* decrement ttl */
unicast_packet->ttl--;
diff --git a/drivers/staging/batman-adv/unicast.c b/drivers/staging/batman-adv/unicast.c
index 57fe2de..12afae6 100644
--- a/drivers/staging/batman-adv/unicast.c
+++ b/drivers/staging/batman-adv/unicast.c
@@ -206,8 +206,8 @@ out:
return ret;
}
-static int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
- struct batman_if *batman_if, uint8_t dstaddr[])
+int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
+ struct batman_if *batman_if, uint8_t dstaddr[])
{
struct unicast_packet tmp_uc, *unicast_packet;
struct sk_buff *frag_skb;
diff --git a/drivers/staging/batman-adv/unicast.h b/drivers/staging/batman-adv/unicast.h
index 5908b01..e32b786 100644
--- a/drivers/staging/batman-adv/unicast.h
+++ b/drivers/staging/batman-adv/unicast.h
@@ -29,5 +29,7 @@ int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
struct sk_buff **new_skb);
void frag_list_free(struct list_head *head);
int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv);
+int frag_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
+ struct batman_if *batman_if, uint8_t dstaddr[]);
#endif /* _NET_BATMAN_ADV_UNICAST_H_ */
--
1.7.3.2
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