This commit adds the ability to also forward a received multicast tracker packet (if necessary). It also makes use of the same splitting methods introduced with one of the previous commits, in case of multiple next hop destinations.
Signed-off-by: Linus Lüssing <[email protected]> --- hard-interface.c | 5 +++++ routing.c | 20 ++++++++++++++++++++ routing.h | 1 + 3 files changed, 26 insertions(+), 0 deletions(-) diff --git a/batman-adv/hard-interface.c b/batman-adv/hard-interface.c index 1455e7f..8fa8ff7 100644 --- a/batman-adv/hard-interface.c +++ b/batman-adv/hard-interface.c @@ -631,6 +631,11 @@ static int batman_skb_recv(struct sk_buff *skb, struct net_device *dev, ret = recv_bcast_packet(skb, batman_if); break; + /* multicast tracker packet */ + case BAT_MCAST_TRACKER: + ret = recv_mcast_tracker_packet(skb, batman_if); + break; + /* vis packet */ case BAT_VIS: ret = recv_vis_packet(skb, batman_if); diff --git a/batman-adv/routing.c b/batman-adv/routing.c index 81719d9..60dcf39 100644 --- a/batman-adv/routing.c +++ b/batman-adv/routing.c @@ -35,6 +35,7 @@ #include "gateway_common.h" #include "gateway_client.h" #include "unicast.h" +#include "multicast.h" void slide_own_bcast_window(struct batman_if *batman_if) { @@ -1496,6 +1497,25 @@ out: return ret; } +int recv_mcast_tracker_packet(struct sk_buff *skb, struct batman_if *recv_if) +{ + struct bat_priv *bat_priv = netdev_priv(recv_if->soft_iface); + int hdr_size = sizeof(struct mcast_tracker_packet); + + /* keep skb linear */ + if (skb_linearize(skb) < 0) + return NET_RX_DROP; + + if (check_unicast_packet(skb, hdr_size) < 0) + return NET_RX_DROP; + + route_mcast_tracker_packet(skb, bat_priv); + + dev_kfree_skb(skb); + + return NET_RX_SUCCESS; +} + int recv_vis_packet(struct sk_buff *skb, struct batman_if *recv_if) { struct vis_packet *vis_packet; diff --git a/batman-adv/routing.h b/batman-adv/routing.h index d138644..83f2752 100644 --- a/batman-adv/routing.h +++ b/batman-adv/routing.h @@ -38,6 +38,7 @@ int recv_icmp_packet(struct sk_buff *skb, struct batman_if *recv_if); int recv_unicast_packet(struct sk_buff *skb, struct batman_if *recv_if); int recv_ucast_frag_packet(struct sk_buff *skb, struct batman_if *recv_if); int recv_bcast_packet(struct sk_buff *skb, struct batman_if *recv_if); +int recv_mcast_tracker_packet(struct sk_buff *skb, struct batman_if *recv_if); int recv_vis_packet(struct sk_buff *skb, struct batman_if *recv_if); int recv_bat_packet(struct sk_buff *skb, struct batman_if *recv_if); struct neigh_node *find_router(struct bat_priv *bat_priv, -- 1.7.2.3
