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batman-adv: retrieve B.A.T.M.A.N. V WiFi neighbor stats from real interface

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Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
[sven.eckelmann@open-mesh.com: re-add batadv_get_real_netdev to take rtnl
 semaphore for batadv_get_real_netdevice]
Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Marek Lindner 2016-09-30 15:21:05 +02:00 committed by Simon Wunderlich
parent 5ed4a460a1
commit 1942de1bba
3 changed files with 31 additions and 2 deletions
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10
net/batman-adv/bat_v_elp.c
View File

@ -75,6 +75,7 @@ static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh)
{
struct batadv_hard_iface *hard_iface = neigh->if_incoming;
struct ethtool_link_ksettings link_settings;
struct net_device *real_netdev;
struct station_info sinfo;
u32 throughput;
int ret;
@ -94,8 +95,13 @@ static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh)
/* unsupported WiFi driver version */
goto default_throughput;
ret = cfg80211_get_station(hard_iface->net_dev,
neigh->addr, &sinfo);
real_netdev = batadv_get_real_netdev(hard_iface->net_dev);
if (!real_netdev)
goto default_throughput;
ret = cfg80211_get_station(real_netdev, neigh->addr, &sinfo);
dev_put(real_netdev);
if (ret == -ENOENT) {
/* Node is not associated anymore! It would be
* possible to delete this neighbor. For now set

22
net/batman-adv/hard-interface.c
View File

@ -206,6 +206,9 @@ static bool batadv_is_valid_iface(const struct net_device *net_dev)
* interface on top of another 'real' interface
* @netdev: the device to check
*
* Callers must hold the rtnl semaphore. You may want batadv_get_real_netdev()
* instead of this.
*
* Return: the 'real' net device or the original net device and NULL in case
* of an error.
*/
@ -242,6 +245,25 @@ out:
return real_netdev;
}
/**
* batadv_get_real_netdev - check if the given net_device struct is a virtual
* interface on top of another 'real' interface
* @net_device: the device to check
*
* Return: the 'real' net device or the original net device and NULL in case
* of an error.
*/
struct net_device *batadv_get_real_netdev(struct net_device *net_device)
{
struct net_device *real_netdev;
rtnl_lock();
real_netdev = batadv_get_real_netdevice(net_device);
rtnl_unlock();
return real_netdev;
}
/**
* batadv_is_wext_netdev - check if the given net_device struct is a
* wext wifi interface

1
net/batman-adv/hard-interface.h
View File

@ -65,6 +65,7 @@ enum batadv_hard_if_cleanup {
extern struct notifier_block batadv_hard_if_notifier;
struct net_device *batadv_get_real_netdev(struct net_device *net_device);
bool batadv_is_cfg80211_hardif(struct batadv_hard_iface *hard_iface);
bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface);
struct batadv_hard_iface*