[PATCH 12/12] batman-adv: enable fast client detection using unicast_4addr packets
From: Antonio Quartulli <hidden>
Date: 2012-11-07 19:12:40
Also in:
batman
Subsystem:
batman advanced, the rest · Maintainers:
Marek Lindner, Simon Wunderlich, Antonio Quartulli, Sven Eckelmann, Linus Torvalds
The "early client detection mechanism" can be extended to find new clients by means of unicast_4addr packets. The unicast_4addr packet contains as well as the broadcast packet (which is currently used in this mechanism) the address of the originating node and can therefore be used to install new entries in the Global Translation Table Signed-off-by: Antonio Quartulli <redacted> Signed-off-by: Marek Lindner <redacted> --- net/batman-adv/routing.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 3f21c09..32aa4d4 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c@@ -986,6 +986,8 @@ int batadv_recv_unicast_packet(struct sk_buff *skb, struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface); struct batadv_unicast_packet *unicast_packet; struct batadv_unicast_4addr_packet *unicast_4addr_packet; + uint8_t *orig_addr; + struct batadv_orig_node *orig_node = NULL; int hdr_size = sizeof(*unicast_packet); bool is4addr;
@@ -1005,9 +1007,12 @@ int batadv_recv_unicast_packet(struct sk_buff *skb, /* packet for me */ if (batadv_is_my_mac(unicast_packet->dest)) { - if (is4addr) + if (is4addr) { batadv_dat_inc_counter(bat_priv, unicast_4addr_packet->subtype); + orig_addr = unicast_4addr_packet->src; + orig_node = batadv_orig_hash_find(bat_priv, orig_addr); + } if (batadv_dat_snoop_incoming_arp_request(bat_priv, skb, hdr_size))
@@ -1017,9 +1022,12 @@ int batadv_recv_unicast_packet(struct sk_buff *skb, goto rx_success; batadv_interface_rx(recv_if->soft_iface, skb, recv_if, hdr_size, - NULL); + orig_node); rx_success: + if (orig_node) + batadv_orig_node_free_ref(orig_node); + return NET_RX_SUCCESS; }
--
1.8.0