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batman-adv: Add multicast forceflood mesh genl configuration

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The mesh interface can optimize the flooding of multicast packets based on
the content of the global translation tables. To disable this behavior and
use the broadcast-like flooding of the packets, forceflood has to be
enabled.

The BATADV_CMD_SET_MESH/BATADV_CMD_GET_MESH commands allow to set/get the
configuration of this feature using the
BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED attribute. Setting the u8 to zero
will disable this feature (allowing multicast optimizations) and setting it
to something else is enabling this feature (forcing simple flooding).

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Sven Eckelmann
2018-11-23 13:25:05 +01:00
committed by Simon Wunderlich
parent b85bd09109
commit f75b56bc91
2 changed files with 24 additions and 0 deletions
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9
include/uapi/linux/batman_adv.h
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@ -455,6 +455,15 @@ enum batadv_nl_attrs {
*/
BATADV_ATTR_LOG_LEVEL,
/**
* @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED: whether multicast
* optimizations should be replaced by simple broadcast-like flooding
* of multicast packets. If set to non-zero then all nodes in the mesh
* are going to use classic flooding for any multicast packet with no
* optimizations.
*/
BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED,
/* add attributes above here, update the policy in netlink.c */
/**