The mesh interface can delay OGM messages to aggregate different ogms
together in a single OGM packet.
The BATADV_CMD_SET_MESH/BATADV_CMD_GET_MESH commands allow to set/get the
configuration of this feature using the BATADV_ATTR_AGGREGATED_OGMS_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>
---
Cc: Marek Lindner <mareklindner@neomailbox.ch>
---
include/uapi/linux/batman_adv.h | 6 ++++++
net/batman-adv/netlink.c | 12 ++++++++++++
2 files changed, 18 insertions(+)
@@ -350,6 +350,12 @@ enum batadv_nl_attrs {
*/
BATADV_ATTR_VLANID,
+ /**
+ * @BATADV_ATTR_AGGREGATED_OGMS_ENABLED: whether the batman protocol
+ * messages of the mesh interface shall be aggregated or not.
+ */
+ BATADV_ATTR_AGGREGATED_OGMS_ENABLED,
+
/* add attributes above here, update the policy in netlink.c */
/**
@@ -139,6 +139,7 @@ static const struct nla_policy batadv_netlink_policy[NUM_BATADV_ATTR] = {
[BATADV_ATTR_MCAST_FLAGS] = { .type = NLA_U32 },
[BATADV_ATTR_MCAST_FLAGS_PRIV] = { .type = NLA_U32 },
[BATADV_ATTR_VLANID] = { .type = NLA_U16 },
+ [BATADV_ATTR_AGGREGATED_OGMS_ENABLED] = { .type = NLA_U8 },
};
/**
@@ -214,6 +215,10 @@ static int batadv_netlink_mesh_fill(struct sk_buff *msg,
goto nla_put_failure;
}
+ if (nla_put_u8(msg, BATADV_ATTR_AGGREGATED_OGMS_ENABLED,
+ !!atomic_read(&bat_priv->aggregated_ogms)))
+ goto nla_put_failure;
+
if (primary_if)
batadv_hardif_put(primary_if);
@@ -296,6 +301,13 @@ static int batadv_netlink_get_mesh(struct sk_buff *skb, struct genl_info *info)
static int batadv_netlink_set_mesh(struct sk_buff *skb, struct genl_info *info)
{
struct batadv_priv *bat_priv = info->user_ptr[0];
+ struct nlattr *attr;
+
+ if (info->attrs[BATADV_ATTR_AGGREGATED_OGMS_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_AGGREGATED_OGMS_ENABLED];
+
+ atomic_set(&bat_priv->aggregated_ogms, !!nla_get_u8(attr));
+ }
batadv_netlink_notify_mesh(bat_priv);