diff options
| author | Linus Lüssing <linus.luessing@web.de> | 2014-02-15 17:47:52 +0100 |
|---|---|---|
| committer | Antonio Quartulli <antonio@meshcoding.com> | 2014-03-22 09:18:57 +0100 |
| commit | 1d8ab8d3c176d31530b3ffd4547cf731018e2a45 (patch) | |
| tree | b62208972cdfb70a853ff5177c29154fd165bea7 /net/batman-adv/types.h | |
| parent | 60432d756cf06e597ef9da511402dd059b112447 (diff) | |
batman-adv: Modified forwarding behaviour for multicast packets
With this patch a multicast packet is not always simply flooded anymore,
the behaviour for the following cases is changed to reduce
unnecessary overhead:
If all nodes within the horizon of a certain node have signalized
multicast listener announcement capability then an IPv6 multicast packet
with a destination of IPv6 link-local scope (excluding ff02::1) coming
from the upstream of this node...
* ...is dropped if there is no according multicast listener in the
translation table,
* ...is forwarded via unicast if there is a single node with interested
multicast listeners
* ...and otherwise still gets flooded.
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net/batman-adv/types.h')
| -rw-r--r-- | net/batman-adv/types.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h index 96ee0d2b11d9..c28fc4a403a3 100644 --- a/net/batman-adv/types.h +++ b/net/batman-adv/types.h @@ -696,6 +696,8 @@ struct batadv_softif_vlan { * enabled * @distributed_arp_table: bool indicating whether distributed ARP table is * enabled + * @multicast_mode: Enable or disable multicast optimizations on this node's + * sender/originating side * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes) * @gw_sel_class: gateway selection class (applies if gw_mode client) * @orig_interval: OGM broadcast interval in milliseconds @@ -746,6 +748,9 @@ struct batadv_priv { #ifdef CONFIG_BATMAN_ADV_DAT atomic_t distributed_arp_table; #endif +#ifdef CONFIG_BATMAN_ADV_MCAST + atomic_t multicast_mode; +#endif atomic_t gw_mode; atomic_t gw_sel_class; atomic_t orig_interval; @@ -909,12 +914,14 @@ struct batadv_tt_local_entry { * struct batadv_tt_global_entry - translation table global entry data * @common: general translation table data * @orig_list: list of orig nodes announcing this non-mesh client + * @orig_list_count: number of items in the orig_list * @list_lock: lock protecting orig_list * @roam_at: time at which TT_GLOBAL_ROAM was set */ struct batadv_tt_global_entry { struct batadv_tt_common_entry common; struct hlist_head orig_list; + atomic_t orig_list_count; spinlock_t list_lock; /* protects orig_list */ unsigned long roam_at; }; |