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Staging: batman-adv: fragment forwarded packets

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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@gmx.de>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Andreas Langer 2010-11-22 00:55:49 +01:00 committed by Greg Kroah-Hartman
parent b8cd75445e
commit 9061109ab1
3 changed files with 10 additions and 2 deletions
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6
drivers/staging/batman-adv/routing.c
View File

@ -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--;

4
drivers/staging/batman-adv/unicast.c
View File

@ -206,8 +206,8 @@ int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
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;

2
drivers/staging/batman-adv/unicast.h
View File

@ -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_ */