Commit a1080082 authored by Sven Eckelmann's avatar Sven Eckelmann Committed by Simon Wunderlich
Browse files

batman-adv: Add elp_interval hardif genl configuration



The ELP packets are transmitted every elp_interval milliseconds on an
slave/hard-interface. This value can be changed using the configuration
interface.

The BATADV_CMD_SET_HARDIF/BATADV_CMD_GET_HARDIF commands allow to set/get
the configuration of this feature using the u32 BATADV_ATTR_ELP_INTERVAL
attribute.

Signed-off-by: default avatarSven Eckelmann <sven@narfation.org>
Signed-off-by: default avatarSimon Wunderlich <sw@simonwunderlich.de>
parent 7b751b39
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+6 −0
Original line number Diff line number Diff line
@@ -477,6 +477,12 @@ enum batadv_nl_attrs {
	 */
	BATADV_ATTR_ORIG_INTERVAL,

	/**
	 * @BATADV_ATTR_ELP_INTERVAL: defines the interval in milliseconds in
	 *  which batman emits probing packets for neighbor sensing (ELP).
	 */
	BATADV_ATTR_ELP_INTERVAL,

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

	/**
+17 −0
Original line number Diff line number Diff line
@@ -159,6 +159,7 @@ static const struct nla_policy batadv_netlink_policy[NUM_BATADV_ATTR] = {
	[BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED]	= { .type = NLA_U8 },
	[BATADV_ATTR_NETWORK_CODING_ENABLED]	= { .type = NLA_U8 },
	[BATADV_ATTR_ORIG_INTERVAL]		= { .type = NLA_U32 },
	[BATADV_ATTR_ELP_INTERVAL]		= { .type = NLA_U32 },
};

/**
@@ -825,6 +826,12 @@ static int batadv_netlink_hardif_fill(struct sk_buff *msg,
			goto nla_put_failure;
	}

#ifdef CONFIG_BATMAN_ADV_BATMAN_V
	if (nla_put_u32(msg, BATADV_ATTR_ELP_INTERVAL,
			atomic_read(&hard_iface->bat_v.elp_interval)))
		goto nla_put_failure;
#endif /* CONFIG_BATMAN_ADV_BATMAN_V */

	genlmsg_end(msg, hdr);
	return 0;

@@ -910,6 +917,16 @@ static int batadv_netlink_set_hardif(struct sk_buff *skb,
	struct batadv_hard_iface *hard_iface = info->user_ptr[1];
	struct batadv_priv *bat_priv = info->user_ptr[0];

#ifdef CONFIG_BATMAN_ADV_BATMAN_V
	struct nlattr *attr;

	if (info->attrs[BATADV_ATTR_ELP_INTERVAL]) {
		attr = info->attrs[BATADV_ATTR_ELP_INTERVAL];

		atomic_set(&hard_iface->bat_v.elp_interval, nla_get_u32(attr));
	}
#endif /* CONFIG_BATMAN_ADV_BATMAN_V */

	batadv_netlink_notify_hardif(bat_priv, hard_iface);

	return 0;