diff mbox

[5/6] batman-adv: fragment forwarded packets

Message ID 1284674410-15477-5-git-send-email-an.langer@gmx.de (mailing list archive)
State Accepted, archived
Headers

Commit Message

Andreas Langer Sept. 16, 2010, 10 p.m. UTC 
  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 at gmx.de>
---
 batman-adv/routing.c |    6 ++++++
 batman-adv/unicast.h |    2 ++
 2 files changed, 8 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/batman-adv/routing.c b/batman-adv/routing.c
index 5d17597..c763121 100644
--- a/batman-adv/routing.c
+++ b/batman-adv/routing.c
@@ -1179,6 +1179,12 @@  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/batman-adv/unicast.h b/batman-adv/unicast.h
index 5908b01..e32b786 100644
--- a/batman-adv/unicast.h
+++ b/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_ */