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authorSimon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>2013-04-25 10:37:23 +0200
committerAntonio Quartulli <antonio@meshcoding.com>2013-10-09 21:22:34 +0200
commita1f1ac5c4d045a1adc6662346733a6db3aee5a9d (patch)
treeba32dde81ad0d35055bf8102a609e6b07c8cda9d /net/batman-adv/routing.c
parent80067c8320aebab6d740e07be6ecf3dd04787f60 (diff)
downloadop-kernel-dev-a1f1ac5c4d045a1adc6662346733a6db3aee5a9d.zip
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batman-adv: reorder packet types
Reordering the packet type numbers allows us to handle unicast packets in a general way - even if we don't know the specific packet type, we can still forward it. There was already code handling this for a couple of unicast packets, and this is the more generalized version to do that. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net/batman-adv/routing.c')
-rw-r--r--net/batman-adv/routing.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 2a9318b..457dfef 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -911,6 +911,34 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
return 1;
}
+/**
+ * batadv_recv_unhandled_unicast_packet - receive and process packets which
+ * are in the unicast number space but not yet known to the implementation
+ * @skb: unicast tvlv packet to process
+ * @recv_if: pointer to interface this packet was received on
+ *
+ * Returns NET_RX_SUCCESS if the packet has been consumed or NET_RX_DROP
+ * otherwise.
+ */
+int batadv_recv_unhandled_unicast_packet(struct sk_buff *skb,
+ struct batadv_hard_iface *recv_if)
+{
+ struct batadv_unicast_packet *unicast_packet;
+ struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
+ int check, hdr_size = sizeof(*unicast_packet);
+
+ check = batadv_check_unicast_packet(bat_priv, skb, hdr_size);
+ if (check < 0)
+ return NET_RX_DROP;
+
+ /* we don't know about this type, drop it. */
+ unicast_packet = (struct batadv_unicast_packet *)skb->data;
+ if (batadv_is_my_mac(bat_priv, unicast_packet->dest))
+ return NET_RX_DROP;
+
+ return batadv_route_unicast_packet(skb, recv_if);
+}
+
int batadv_recv_unicast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if)
{
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