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 --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_ */