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-rw-r--r--net/wireless/ibss.c145
1 files changed, 49 insertions, 96 deletions
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index 8f98e546becf..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) 2020-2021 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
*/
#include <linux/etherdevice.h>
@@ -28,7 +28,7 @@ void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
return;
- if (!wdev->ssid_len)
+ if (!wdev->u.ibss.ssid_len)
return;
bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, NULL, 0,
@@ -37,16 +37,15 @@ void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
if (WARN_ON(!bss))
return;
- if (wdev->current_bss) {
- cfg80211_unhold_bss(wdev->current_bss);
- cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
+ if (wdev->u.ibss.current_bss) {
+ cfg80211_unhold_bss(wdev->u.ibss.current_bss);
+ cfg80211_put_bss(wdev->wiphy, &wdev->u.ibss.current_bss->pub);
}
cfg80211_hold_bss(bss_from_pub(bss));
- wdev->current_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);
@@ -94,9 +93,11 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
int err;
lockdep_assert_held(&rdev->wiphy.mtx);
- ASSERT_WDEV_LOCK(wdev);
- if (wdev->ssid_len)
+ if (wdev->links[0].cac_started)
+ return -EBUSY;
+
+ if (wdev->u.ibss.ssid_len)
return -EALREADY;
if (!params->basic_rates) {
@@ -131,9 +132,7 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
kfree_sensitive(wdev->connect_keys);
wdev->connect_keys = connkeys;
- wdev->ibss_fixed = params->channel_fixed;
- wdev->ibss_dfs_possible = params->userspace_handles_dfs;
- wdev->chandef = params->chandef;
+ wdev->u.ibss.chandef = params->chandef;
if (connkeys) {
params->wep_keys = connkeys->params;
params->wep_tx_key = connkeys->def;
@@ -148,19 +147,19 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
return err;
}
- memcpy(wdev->ssid, params->ssid, params->ssid_len);
- wdev->ssid_len = params->ssid_len;
+ memcpy(wdev->u.ibss.ssid, params->ssid, params->ssid_len);
+ wdev->u.ibss.ssid_len = params->ssid_len;
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;
@@ -173,16 +172,16 @@ static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext)
*/
if (rdev->ops->del_key)
for (i = 0; i < 6; i++)
- rdev_del_key(rdev, dev, i, false, NULL);
+ rdev_del_key(rdev, dev, -1, i, false, NULL);
- if (wdev->current_bss) {
- cfg80211_unhold_bss(wdev->current_bss);
- cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
+ if (wdev->u.ibss.current_bss) {
+ cfg80211_unhold_bss(wdev->u.ibss.current_bss);
+ cfg80211_put_bss(wdev->wiphy, &wdev->u.ibss.current_bss->pub);
}
- wdev->current_bss = NULL;
- wdev->ssid_len = 0;
- memset(&wdev->chandef, 0, sizeof(wdev->chandef));
+ wdev->u.ibss.current_bss = NULL;
+ wdev->u.ibss.ssid_len = 0;
+ memset(&wdev->u.ibss.chandef, 0, sizeof(wdev->u.ibss.chandef));
#ifdef CONFIG_CFG80211_WEXT
if (!nowext)
wdev->wext.ibss.ssid_len = 0;
@@ -190,24 +189,15 @@ 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->ssid_len)
+ if (!wdev->u.ibss.ssid_len)
return -ENOLINK;
err = rdev_leave_ibss(rdev, dev);
@@ -216,24 +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)
@@ -242,7 +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;
@@ -296,7 +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,
@@ -339,11 +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->ssid_len)
- err = __cfg80211_leave_ibss(rdev, dev, true);
- wdev_unlock(wdev);
+ if (wdev->u.ibss.ssid_len)
+ err = cfg80211_leave_ibss(rdev, dev, true);
if (err)
return err;
@@ -357,11 +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,
@@ -375,12 +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->current_bss)
- chan = wdev->current_bss->pub.channel;
+ 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;
@@ -408,11 +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->ssid_len)
- err = __cfg80211_leave_ibss(rdev, dev, true);
- wdev_unlock(wdev);
+ if (wdev->u.ibss.ssid_len)
+ err = cfg80211_leave_ibss(rdev, dev, true);
if (err)
return err;
@@ -421,15 +388,11 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
if (len > 0 && ssid[len - 1] == '\0')
len--;
- memcpy(wdev->ssid, ssid, len);
- wdev->wext.ibss.ssid = wdev->ssid;
+ memcpy(wdev->u.ibss.ssid, ssid, len);
+ 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,
@@ -444,17 +407,15 @@ int cfg80211_ibss_wext_giwessid(struct net_device *dev,
data->flags = 0;
- wdev_lock(wdev);
- if (wdev->ssid_len) {
+ if (wdev->u.ibss.ssid_len) {
data->flags = 1;
- data->length = wdev->ssid_len;
- memcpy(ssid, wdev->ssid, data->length);
+ data->length = wdev->u.ibss.ssid_len;
+ memcpy(ssid, wdev->u.ibss.ssid, data->length);
} else if (wdev->wext.ibss.ssid && wdev->wext.ibss.ssid_len) {
data->flags = 1;
data->length = wdev->wext.ibss.ssid_len;
memcpy(ssid, wdev->wext.ibss.ssid, data->length);
}
- wdev_unlock(wdev);
return 0;
}
@@ -494,11 +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->ssid_len)
- err = __cfg80211_leave_ibss(rdev, dev, true);
- wdev_unlock(wdev);
+ if (wdev->u.ibss.ssid_len)
+ err = cfg80211_leave_ibss(rdev, dev, true);
if (err)
return err;
@@ -509,11 +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,
@@ -528,16 +483,14 @@ int cfg80211_ibss_wext_giwap(struct net_device *dev,
ap_addr->sa_family = ARPHRD_ETHER;
- wdev_lock(wdev);
- if (wdev->current_bss)
- memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
+ if (wdev->u.ibss.current_bss)
+ memcpy(ap_addr->sa_data, wdev->u.ibss.current_bss->pub.bssid,
+ ETH_ALEN);
else if (wdev->wext.ibss.bssid)
memcpy(ap_addr->sa_data, wdev->wext.ibss.bssid, ETH_ALEN);
else
eth_zero_addr(ap_addr->sa_data);
- wdev_unlock(wdev);
-
return 0;
}
#endif
generated by cgit (git 2.34.1) at 2025-12-25 09:43:06 +0000