Commit 7b751b39 authored by Sven Eckelmann's avatar Sven Eckelmann Committed by Simon Wunderlich
Browse files

batman-adv: Add orig_interval mesh genl configuration 



The OGM packets are transmitted every orig_interval milliseconds. This
value can be changed using the configuration interface.

The BATADV_CMD_SET_MESH/BATADV_CMD_GET_MESH commands allow to set/get the
configuration of this feature using the u32 BATADV_ATTR_ORIG_INTERVAL
attribute.

Signed-off-by: default avatarSven Eckelmann <sven@narfation.org>
Signed-off-by: default avatarSimon Wunderlich <sw@simonwunderlich.de>
parent 6c57cde6

include/uapi/linux/batman_adv.h

+6 −0
Original line number Diff line number Diff line
@@ -471,6 +471,12 @@ enum batadv_nl_attrs { 
	 */

	BATADV_ATTR_NETWORK_CODING_ENABLED,



	/**

	 * @BATADV_ATTR_ORIG_INTERVAL: defines the interval in milliseconds in

	 *  which batman sends its protocol messages.

	 */

	BATADV_ATTR_ORIG_INTERVAL,



	/* add attributes above here, update the policy in netlink.c */



	/**

net/batman-adv/netlink.c

+17 −0
Original line number Diff line number Diff line
@@ -158,6 +158,7 @@ static const struct nla_policy batadv_netlink_policy[NUM_BATADV_ATTR] = { 
	[BATADV_ATTR_LOG_LEVEL]			= { .type = NLA_U32 },

	[BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED]	= { .type = NLA_U8 },

	[BATADV_ATTR_NETWORK_CODING_ENABLED]	= { .type = NLA_U8 },

	[BATADV_ATTR_ORIG_INTERVAL]		= { .type = NLA_U32 },

};



/**
@@ -358,6 +359,10 @@ static int batadv_netlink_mesh_fill(struct sk_buff *msg, 
		goto nla_put_failure;

#endif /* CONFIG_BATMAN_ADV_NC */



	if (nla_put_u32(msg, BATADV_ATTR_ORIG_INTERVAL,

			atomic_read(&bat_priv->orig_interval)))

		goto nla_put_failure;



	if (primary_if)

		batadv_hardif_put(primary_if);
@@ -596,6 +601,18 @@ static int batadv_netlink_set_mesh(struct sk_buff *skb, struct genl_info *info) 
	}

#endif /* CONFIG_BATMAN_ADV_NC */



	if (info->attrs[BATADV_ATTR_ORIG_INTERVAL]) {

		u32 orig_interval;



		attr = info->attrs[BATADV_ATTR_ORIG_INTERVAL];

		orig_interval = nla_get_u32(attr);



		orig_interval = min_t(u32, orig_interval, INT_MAX);

		orig_interval = max_t(u32, orig_interval, 2 * BATADV_JITTER);



		atomic_set(&bat_priv->orig_interval, orig_interval);

	}



	batadv_netlink_notify_mesh(bat_priv);



	return 0;

CRA Git | Maintained and supported by SUSTech CRA and CCSE