From 07afe1ba288c04280622fa002ed385f1ac0b6fe6 Mon Sep 17 00:00:00 2001 From: Linus Lüssing Date: Thu, 7 Sep 2023 03:09:08 +0200 Subject: batman-adv: mcast: implement multicast packet reception and forwarding MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implement functionality to receive and forward a new TVLV capable multicast packet type. The new batman-adv multicast packet type allows to contain several originator destination addresses within a TVLV. Routers on the way will potentially split the batman-adv multicast packet and adjust its tracker TVLV contents. Routing decisions are still based on the selected BATMAN IV or BATMAN V routing algorithm. So this new batman-adv multicast packet type retains the same loop-free properties. Also a new OGM multicast TVLV flag is introduced to signal to other nodes that we are capable of handling a batman-adv multicast packet and multicast tracker TVLV. And that all of our hard interfaces have an MTU of at least 1280 bytes (IPv6 minimum MTU), as a simple solution for now to avoid MTU issues while forwarding. Signed-off-by: Linus Lüssing Signed-off-by: Simon Wunderlich --- net/batman-adv/originator.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/batman-adv/originator.h') diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h index ea3d69e4e670..db0c55128170 100644 --- a/net/batman-adv/originator.h +++ b/net/batman-adv/originator.h @@ -36,6 +36,9 @@ void batadv_neigh_node_release(struct kref *ref); struct batadv_neigh_node * batadv_orig_router_get(struct batadv_orig_node *orig_node, const struct batadv_hard_iface *if_outgoing); +struct batadv_neigh_node * +batadv_orig_to_router(struct batadv_priv *bat_priv, u8 *orig_addr, + struct batadv_hard_iface *if_outgoing); struct batadv_neigh_ifinfo * batadv_neigh_ifinfo_new(struct batadv_neigh_node *neigh, struct batadv_hard_iface *if_outgoing); -- cgit v1.2.3