unimore/kernel-hacking-2024-linux-steffo
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batman-adv: Add bonding mesh genl configuration

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The mesh interface can use multiple slave/hard-interface ports at the same
time to transport the traffic to other nodes.

The BATADV_CMD_SET_MESH/BATADV_CMD_GET_MESH commands allow to set/get the
configuration of this feature using the BATADV_ATTR_BONDING_ENABLED
attribute. Setting the u8 to zero will disable this feature and setting it
to something else is enabling this feature.

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 12:55:44 +01:00 committed by Simon Wunderlich
parent e43d16b87d
commit d7e52506b6
2 changed files with 17 additions and 0 deletions
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6
include/uapi/linux/batman_adv.h
View file

@ -375,6 +375,12 @@ enum batadv_nl_attrs {
*/
BATADV_ATTR_ISOLATION_MASK,
/**
* @BATADV_ATTR_BONDING_ENABLED: whether the data traffic going through
* the mesh will be sent using multiple interfaces at the same time.
*/
BATADV_ATTR_BONDING_ENABLED,
/* add attributes above here, update the policy in netlink.c */
/**

11
net/batman-adv/netlink.c
View file

@ -143,6 +143,7 @@ static const struct nla_policy batadv_netlink_policy[NUM_BATADV_ATTR] = {
[BATADV_ATTR_AP_ISOLATION_ENABLED] = { .type = NLA_U8 },
[BATADV_ATTR_ISOLATION_MARK] = { .type = NLA_U32 },
[BATADV_ATTR_ISOLATION_MASK] = { .type = NLA_U32 },
[BATADV_ATTR_BONDING_ENABLED] = { .type = NLA_U8 },
};
/**
@ -279,6 +280,10 @@ static int batadv_netlink_mesh_fill(struct sk_buff *msg,
bat_priv->isolation_mark_mask))
goto nla_put_failure;
if (nla_put_u8(msg, BATADV_ATTR_BONDING_ENABLED,
!!atomic_read(&bat_priv->bonding)))
goto nla_put_failure;
if (primary_if)
batadv_hardif_put(primary_if);
@ -387,6 +392,12 @@ static int batadv_netlink_set_mesh(struct sk_buff *skb, struct genl_info *info)
bat_priv->isolation_mark_mask = nla_get_u32(attr);
}
if (info->attrs[BATADV_ATTR_BONDING_ENABLED]) {
attr = info->attrs[BATADV_ATTR_BONDING_ENABLED];
atomic_set(&bat_priv->bonding, !!nla_get_u8(attr));
}
batadv_netlink_notify_mesh(bat_priv);
return 0;