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Diffstat (limited to 'net/wireless/ibss.c')
-rw-r--r--net/wireless/ibss.c84
1 files changed, 19 insertions, 65 deletions
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index edd062f104f4..1e3ed29f7cfc 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -3,7 +3,7 @@
* Some IBSS support code for cfg80211.
*
* Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
- * Copyright (C) 2020-2022 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
*/
#include <linux/etherdevice.h>
@@ -45,8 +45,7 @@ void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
cfg80211_hold_bss(bss_from_pub(bss));
wdev->u.ibss.current_bss = bss_from_pub(bss);
- if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP))
- cfg80211_upload_connect_keys(wdev);
+ cfg80211_upload_connect_keys(wdev);
nl80211_send_ibss_bssid(wiphy_to_rdev(wdev->wiphy), dev, bssid,
GFP_KERNEL);
@@ -94,7 +93,9 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
int err;
lockdep_assert_held(&rdev->wiphy.mtx);
- ASSERT_WDEV_LOCK(wdev);
+
+ if (wdev->links[0].cac_started)
+ return -EBUSY;
if (wdev->u.ibss.ssid_len)
return -EALREADY;
@@ -152,13 +153,13 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
return 0;
}
-static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext)
+void cfg80211_clear_ibss(struct net_device *dev, bool nowext)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
int i;
- ASSERT_WDEV_LOCK(wdev);
+ lockdep_assert_wiphy(wdev->wiphy);
kfree_sensitive(wdev->connect_keys);
wdev->connect_keys = NULL;
@@ -188,22 +189,13 @@ static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext)
cfg80211_sched_dfs_chan_update(rdev);
}
-void cfg80211_clear_ibss(struct net_device *dev, bool nowext)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
-
- wdev_lock(wdev);
- __cfg80211_clear_ibss(dev, nowext);
- wdev_unlock(wdev);
-}
-
-int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
- struct net_device *dev, bool nowext)
+int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, bool nowext)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
- ASSERT_WDEV_LOCK(wdev);
+ lockdep_assert_wiphy(wdev->wiphy);
if (!wdev->u.ibss.ssid_len)
return -ENOLINK;
@@ -214,24 +206,11 @@ int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
return err;
wdev->conn_owner_nlportid = 0;
- __cfg80211_clear_ibss(dev, nowext);
+ cfg80211_clear_ibss(dev, nowext);
return 0;
}
-int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
- struct net_device *dev, bool nowext)
-{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- int err;
-
- wdev_lock(wdev);
- err = __cfg80211_leave_ibss(rdev, dev, nowext);
- wdev_unlock(wdev);
-
- return err;
-}
-
#ifdef CONFIG_CFG80211_WEXT
int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev)
@@ -240,7 +219,7 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
enum nl80211_band band;
int i, err;
- ASSERT_WDEV_LOCK(wdev);
+ lockdep_assert_wiphy(wdev->wiphy);
if (!wdev->wext.ibss.beacon_interval)
wdev->wext.ibss.beacon_interval = 100;
@@ -294,7 +273,7 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
if (!ck)
return -ENOMEM;
- for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++)
+ for (i = 0; i < 4; i++)
ck->params[i].key = ck->data[i];
}
err = __cfg80211_join_ibss(rdev, wdev->netdev,
@@ -337,11 +316,9 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
if (wdev->wext.ibss.chandef.chan == chan)
return 0;
- wdev_lock(wdev);
err = 0;
if (wdev->u.ibss.ssid_len)
- err = __cfg80211_leave_ibss(rdev, dev, true);
- wdev_unlock(wdev);
+ err = cfg80211_leave_ibss(rdev, dev, true);
if (err)
return err;
@@ -355,11 +332,7 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
wdev->wext.ibss.channel_fixed = false;
}
- wdev_lock(wdev);
- err = cfg80211_ibss_wext_join(rdev, wdev);
- wdev_unlock(wdev);
-
- return err;
+ return cfg80211_ibss_wext_join(rdev, wdev);
}
int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
@@ -373,12 +346,10 @@ int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
return -EINVAL;
- wdev_lock(wdev);
if (wdev->u.ibss.current_bss)
chan = wdev->u.ibss.current_bss->pub.channel;
else if (wdev->wext.ibss.chandef.chan)
chan = wdev->wext.ibss.chandef.chan;
- wdev_unlock(wdev);
if (chan) {
freq->m = chan->center_freq;
@@ -406,11 +377,9 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
if (!rdev->ops->join_ibss)
return -EOPNOTSUPP;
- wdev_lock(wdev);
err = 0;
if (wdev->u.ibss.ssid_len)
- err = __cfg80211_leave_ibss(rdev, dev, true);
- wdev_unlock(wdev);
+ err = cfg80211_leave_ibss(rdev, dev, true);
if (err)
return err;
@@ -423,11 +392,7 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
wdev->wext.ibss.ssid = wdev->u.ibss.ssid;
wdev->wext.ibss.ssid_len = len;
- wdev_lock(wdev);
- err = cfg80211_ibss_wext_join(rdev, wdev);
- wdev_unlock(wdev);
-
- return err;
+ return cfg80211_ibss_wext_join(rdev, wdev);
}
int cfg80211_ibss_wext_giwessid(struct net_device *dev,
@@ -442,7 +407,6 @@ int cfg80211_ibss_wext_giwessid(struct net_device *dev,
data->flags = 0;
- wdev_lock(wdev);
if (wdev->u.ibss.ssid_len) {
data->flags = 1;
data->length = wdev->u.ibss.ssid_len;
@@ -452,7 +416,6 @@ int cfg80211_ibss_wext_giwessid(struct net_device *dev,
data->length = wdev->wext.ibss.ssid_len;
memcpy(ssid, wdev->wext.ibss.ssid, data->length);
}
- wdev_unlock(wdev);
return 0;
}
@@ -492,11 +455,9 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
ether_addr_equal(bssid, wdev->wext.ibss.bssid))
return 0;
- wdev_lock(wdev);
err = 0;
if (wdev->u.ibss.ssid_len)
- err = __cfg80211_leave_ibss(rdev, dev, true);
- wdev_unlock(wdev);
+ err = cfg80211_leave_ibss(rdev, dev, true);
if (err)
return err;
@@ -507,11 +468,7 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
} else
wdev->wext.ibss.bssid = NULL;
- wdev_lock(wdev);
- err = cfg80211_ibss_wext_join(rdev, wdev);
- wdev_unlock(wdev);
-
- return err;
+ return cfg80211_ibss_wext_join(rdev, wdev);
}
int cfg80211_ibss_wext_giwap(struct net_device *dev,
@@ -526,7 +483,6 @@ int cfg80211_ibss_wext_giwap(struct net_device *dev,
ap_addr->sa_family = ARPHRD_ETHER;
- wdev_lock(wdev);
if (wdev->u.ibss.current_bss)
memcpy(ap_addr->sa_data, wdev->u.ibss.current_bss->pub.bssid,
ETH_ALEN);
@@ -535,8 +491,6 @@ int cfg80211_ibss_wext_giwap(struct net_device *dev,
else
eth_zero_addr(ap_addr->sa_data);
- wdev_unlock(wdev);
-
return 0;
}
#endif
generated by cgit (git 2.34.1) at 2025-12-21 19:11:34 +0000