diff options
| author | Martin Hundebøll <martin@hundeboll.net> | 2013-04-20 15:54:39 +0400 |
|---|---|---|
| committer | Antonio Quartulli <ordex@autistici.org> | 2013-05-29 04:44:55 +0400 |
| commit | e91ecfc64ad691176be119e627e36cec8564f44b (patch) | |
| tree | d709428d92da6a522edca57fbec960d7c582c93f /net/batman-adv/send.c | |
| parent | 5f80df6705fcd8153f93bd0e82109dbeb7ff535b (diff) | |
| download | linux-e91ecfc64ad691176be119e627e36cec8564f44b.tar.xz | |
batman-adv: Move call to batadv_nc_skb_forward() from routing.c to send.c
The call to batadv_nc_skb_forward() fits better in
batadv_send_skb_to_orig(), as this is where the actual next hop is
looked up.
To let the caller of batadv_send_skb_to_orig() know wether the skb is
transmitted, buffered or failed, the return value is changed from
boolean to int.
Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Diffstat (limited to 'net/batman-adv/send.c')
| -rw-r--r-- | net/batman-adv/send.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index ce69f458a754..e9ff8d801201 100644 --- a/net/batman-adv/send.c +++ b/net/batman-adv/send.c @@ -96,26 +96,37 @@ send_skb_err: * host, NULL can be passed as recv_if and no interface alternating is * attempted. * - * Returns TRUE on success; FALSE otherwise. + * Returns NET_XMIT_SUCCESS on success, NET_XMIT_DROP on failure, or + * NET_XMIT_POLICED if the skb is buffered for later transmit. */ -bool batadv_send_skb_to_orig(struct sk_buff *skb, - struct batadv_orig_node *orig_node, - struct batadv_hard_iface *recv_if) +int batadv_send_skb_to_orig(struct sk_buff *skb, + struct batadv_orig_node *orig_node, + struct batadv_hard_iface *recv_if) { struct batadv_priv *bat_priv = orig_node->bat_priv; struct batadv_neigh_node *neigh_node; + int ret = NET_XMIT_DROP; /* batadv_find_router() increases neigh_nodes refcount if found. */ neigh_node = batadv_find_router(bat_priv, orig_node, recv_if); if (!neigh_node) - return false; + return ret; - /* route it */ - batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr); + /* try to network code the packet, if it is received on an interface + * (i.e. being forwarded). If the packet originates from this node or if + * network coding fails, then send the packet as usual. + */ + if (recv_if && batadv_nc_skb_forward(skb, neigh_node)) { + ret = NET_XMIT_POLICED; + } else { + batadv_send_skb_packet(skb, neigh_node->if_incoming, + neigh_node->addr); + ret = NET_XMIT_SUCCESS; + } batadv_neigh_node_free_ref(neigh_node); - return true; + return ret; } void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface) |