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cfg80211: introduce cfg80211_stop_ap

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This functionality will be reused when interface
is going down. Avoids code duplication. Also adds
missing wdev locking.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Michal Kazior 2012-06-29 12:46:56 +02:00 committed by Johannes Berg
parent b1fbd46976
commit 60771780c2
4 changed files with 50 additions and 17 deletions
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2
net/wireless/Makefile
View File

@ -10,7 +10,7 @@ obj-$(CONFIG_WEXT_SPY) += wext-spy.o
obj-$(CONFIG_WEXT_PRIV) += wext-priv.o
cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o
cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o
cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o ap.o
cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o
cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o
cfg80211-$(CONFIG_CFG80211_INTERNAL_REGDB) += regdb.o

44
net/wireless/ap.c Normal file
View File

@ -0,0 +1,44 @@
#include <linux/ieee80211.h>
#include <linux/export.h>
#include <net/cfg80211.h>
#include "nl80211.h"
#include "core.h"
static int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
struct net_device *dev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
ASSERT_WDEV_LOCK(wdev);
if (!rdev->ops->stop_ap)
return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
return -EOPNOTSUPP;
if (!wdev->beacon_interval)
return -ENOENT;
err = rdev->ops->stop_ap(&rdev->wiphy, dev);
if (!err)
wdev->beacon_interval = 0;
return err;
}
int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
struct net_device *dev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
wdev_lock(wdev);
err = __cfg80211_stop_ap(rdev, dev);
wdev_unlock(wdev);
return err;
}

4
net/wireless/core.h
View File

@ -289,6 +289,10 @@ int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev, int freq,
enum nl80211_channel_type channel_type);
/* AP */
int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
struct net_device *dev);
/* MLME */
int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
struct net_device *dev,

17
net/wireless/nl80211.c
View File

@ -2521,23 +2521,8 @@ static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
if (!rdev->ops->stop_ap)
return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
return -EOPNOTSUPP;
if (!wdev->beacon_interval)
return -ENOENT;
err = rdev->ops->stop_ap(&rdev->wiphy, dev);
if (!err)
wdev->beacon_interval = 0;
return err;
return cfg80211_stop_ap(rdev, dev);
}
static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {