diff options
| author |   Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de> | 2013-04-25 10:37:23 +0200 |
|---|---|---|
| committer |   Antonio Quartulli <antonio@meshcoding.com> | 2013-10-09 21:22:34 +0200 |
| commit | a1f1ac5c4d045a1adc6662346733a6db3aee5a9d (patch) | |
| tree | ba32dde81ad0d35055bf8102a609e6b07c8cda9d /net/batman-adv/routing.c | |
| parent | batman-adv: add build check macros for packet member offset (diff) | |
| download | linux-dev-a1f1ac5c4d045a1adc6662346733a6db3aee5a9d.tar.xz linux-dev-a1f1ac5c4d045a1adc6662346733a6db3aee5a9d.zip | |
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.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index 2a9318bd9026..457dfef9c5fc 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) { |