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Diffstat (limited to 'net/wireless/ibss.c')
-rw-r--r--net/wireless/ibss.c247
1 files changed, 184 insertions, 63 deletions
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index a4a1c3498ff2..4d7a084b35e2 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -7,10 +7,11 @@
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <net/cfg80211.h>
+#include "wext-compat.h"
#include "nl80211.h"
-void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
+void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_bss *bss;
@@ -24,9 +25,6 @@ void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
if (WARN_ON(!wdev->ssid_len))
return;
- if (memcmp(bssid, wdev->bssid, ETH_ALEN) == 0)
- return;
-
bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
wdev->ssid, wdev->ssid_len,
WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
@@ -36,39 +34,69 @@ void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
if (wdev->current_bss) {
cfg80211_unhold_bss(wdev->current_bss);
- cfg80211_put_bss(wdev->current_bss);
+ cfg80211_put_bss(&wdev->current_bss->pub);
}
- cfg80211_hold_bss(bss);
- wdev->current_bss = bss;
- memcpy(wdev->bssid, bssid, ETH_ALEN);
+ cfg80211_hold_bss(bss_from_pub(bss));
+ wdev->current_bss = bss_from_pub(bss);
- nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid, gfp);
+ cfg80211_upload_connect_keys(wdev);
+
+ nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid,
+ GFP_KERNEL);
#ifdef CONFIG_WIRELESS_EXT
memset(&wrqu, 0, sizeof(wrqu));
memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
#endif
}
+
+void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ struct cfg80211_event *ev;
+ unsigned long flags;
+
+ ev = kzalloc(sizeof(*ev), gfp);
+ if (!ev)
+ return;
+
+ ev->type = EVENT_IBSS_JOINED;
+ memcpy(ev->cr.bssid, bssid, ETH_ALEN);
+
+ spin_lock_irqsave(&wdev->event_lock, flags);
+ list_add_tail(&ev->list, &wdev->event_list);
+ spin_unlock_irqrestore(&wdev->event_lock, flags);
+ schedule_work(&rdev->event_work);
+}
EXPORT_SYMBOL(cfg80211_ibss_joined);
-int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
- struct net_device *dev,
- struct cfg80211_ibss_params *params)
+int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct cfg80211_ibss_params *params,
+ struct cfg80211_cached_keys *connkeys)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
+ ASSERT_WDEV_LOCK(wdev);
+
if (wdev->ssid_len)
return -EALREADY;
+ if (WARN_ON(wdev->connect_keys))
+ kfree(wdev->connect_keys);
+ wdev->connect_keys = connkeys;
+
#ifdef CONFIG_WIRELESS_EXT
wdev->wext.ibss.channel = params->channel;
#endif
err = rdev->ops->join_ibss(&rdev->wiphy, dev, params);
-
- if (err)
+ if (err) {
+ wdev->connect_keys = NULL;
return err;
+ }
memcpy(wdev->ssid, params->ssid, params->ssid_len);
wdev->ssid_len = params->ssid_len;
@@ -76,45 +104,105 @@ int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
return 0;
}
-void cfg80211_clear_ibss(struct net_device *dev, bool nowext)
+int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct cfg80211_ibss_params *params,
+ struct cfg80211_cached_keys *connkeys)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ int err;
+
+ wdev_lock(wdev);
+ err = __cfg80211_join_ibss(rdev, dev, params, connkeys);
+ wdev_unlock(wdev);
+
+ return err;
+}
+
+static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ int i;
+
+ ASSERT_WDEV_LOCK(wdev);
+
+ kfree(wdev->connect_keys);
+ wdev->connect_keys = NULL;
+
+ /*
+ * Delete all the keys ... pairwise keys can't really
+ * exist any more anyway, but default keys might.
+ */
+ if (rdev->ops->del_key)
+ for (i = 0; i < 6; i++)
+ rdev->ops->del_key(wdev->wiphy, dev, i, NULL);
if (wdev->current_bss) {
cfg80211_unhold_bss(wdev->current_bss);
- cfg80211_put_bss(wdev->current_bss);
+ cfg80211_put_bss(&wdev->current_bss->pub);
}
wdev->current_bss = NULL;
wdev->ssid_len = 0;
- memset(wdev->bssid, 0, ETH_ALEN);
#ifdef CONFIG_WIRELESS_EXT
if (!nowext)
wdev->wext.ibss.ssid_len = 0;
#endif
}
-int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
- struct net_device *dev, bool nowext)
+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);
+}
+
+static 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);
+
+ if (!wdev->ssid_len)
+ return -ENOLINK;
+
err = rdev->ops->leave_ibss(&rdev->wiphy, dev);
if (err)
return err;
- 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_WIRELESS_EXT
-static int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
- struct wireless_dev *wdev)
+int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev)
{
+ struct cfg80211_cached_keys *ck = NULL;
enum ieee80211_band band;
- int i;
+ int i, err;
+
+ ASSERT_WDEV_LOCK(wdev);
if (!wdev->wext.ibss.beacon_interval)
wdev->wext.ibss.beacon_interval = 100;
@@ -154,8 +242,24 @@ static int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
if (!netif_running(wdev->netdev))
return 0;
- return cfg80211_join_ibss(wiphy_to_dev(wdev->wiphy),
- wdev->netdev, &wdev->wext.ibss);
+ if (wdev->wext.keys)
+ wdev->wext.keys->def = wdev->wext.default_key;
+
+ wdev->wext.ibss.privacy = wdev->wext.default_key != -1;
+
+ if (wdev->wext.keys) {
+ ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
+ if (!ck)
+ return -ENOMEM;
+ for (i = 0; i < 6; i++)
+ ck->params[i].key = ck->data[i];
+ }
+ err = __cfg80211_join_ibss(rdev, wdev->netdev,
+ &wdev->wext.ibss, ck);
+ if (err)
+ kfree(ck);
+
+ return err;
}
int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
@@ -185,12 +289,15 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
if (wdev->wext.ibss.channel == chan)
return 0;
- if (wdev->ssid_len) {
- err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
- dev, true);
- if (err)
- return err;
- }
+ wdev_lock(wdev);
+ err = 0;
+ if (wdev->ssid_len)
+ err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
+ dev, true);
+ wdev_unlock(wdev);
+
+ if (err)
+ return err;
if (chan) {
wdev->wext.ibss.channel = chan;
@@ -200,10 +307,12 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
wdev->wext.ibss.channel_fixed = false;
}
- return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ wdev_lock(wdev);
+ err = cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ wdev_unlock(wdev);
+
+ return err;
}
-/* temporary symbol - mark GPL - in the future the handler won't be */
-EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_siwfreq);
int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
struct iw_request_info *info,
@@ -216,10 +325,12 @@ 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->channel;
+ chan = wdev->current_bss->pub.channel;
else if (wdev->wext.ibss.channel)
chan = wdev->wext.ibss.channel;
+ wdev_unlock(wdev);
if (chan) {
freq->m = chan->center_freq;
@@ -230,8 +341,6 @@ int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
/* no channel if not joining */
return -EINVAL;
}
-/* temporary symbol - mark GPL - in the future the handler won't be */
-EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_giwfreq);
int cfg80211_ibss_wext_siwessid(struct net_device *dev,
struct iw_request_info *info,
@@ -248,12 +357,15 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
if (!wiphy_to_dev(wdev->wiphy)->ops->join_ibss)
return -EOPNOTSUPP;
- if (wdev->ssid_len) {
- err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
- dev, true);
- if (err)
- return err;
- }
+ wdev_lock(wdev);
+ err = 0;
+ if (wdev->ssid_len)
+ err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
+ dev, true);
+ wdev_unlock(wdev);
+
+ if (err)
+ return err;
/* iwconfig uses nul termination in SSID.. */
if (len > 0 && ssid[len - 1] == '\0')
@@ -263,10 +375,12 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
memcpy(wdev->wext.ibss.ssid, ssid, len);
wdev->wext.ibss.ssid_len = len;
- return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ wdev_lock(wdev);
+ err = cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ wdev_unlock(wdev);
+
+ return err;
}
-/* temporary symbol - mark GPL - in the future the handler won't be */
-EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_siwessid);
int cfg80211_ibss_wext_giwessid(struct net_device *dev,
struct iw_request_info *info,
@@ -280,6 +394,7 @@ int cfg80211_ibss_wext_giwessid(struct net_device *dev,
data->flags = 0;
+ wdev_lock(wdev);
if (wdev->ssid_len) {
data->flags = 1;
data->length = wdev->ssid_len;
@@ -289,11 +404,10 @@ 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;
}
-/* temporary symbol - mark GPL - in the future the handler won't be */
-EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_giwessid);
int cfg80211_ibss_wext_siwap(struct net_device *dev,
struct iw_request_info *info,
@@ -326,12 +440,15 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
compare_ether_addr(bssid, wdev->wext.ibss.bssid) == 0)
return 0;
- if (wdev->ssid_len) {
- err = cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
- dev, true);
- if (err)
- return err;
- }
+ wdev_lock(wdev);
+ err = 0;
+ if (wdev->ssid_len)
+ err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
+ dev, true);
+ wdev_unlock(wdev);
+
+ if (err)
+ return err;
if (bssid) {
memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
@@ -339,10 +456,12 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
} else
wdev->wext.ibss.bssid = NULL;
- return cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ wdev_lock(wdev);
+ err = cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ wdev_unlock(wdev);
+
+ return err;
}
-/* temporary symbol - mark GPL - in the future the handler won't be */
-EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_siwap);
int cfg80211_ibss_wext_giwap(struct net_device *dev,
struct iw_request_info *info,
@@ -356,14 +475,16 @@ int cfg80211_ibss_wext_giwap(struct net_device *dev,
ap_addr->sa_family = ARPHRD_ETHER;
- if (wdev->wext.ibss.bssid) {
+ wdev_lock(wdev);
+ if (wdev->current_bss)
+ memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
+ else if (wdev->wext.ibss.bssid)
memcpy(ap_addr->sa_data, wdev->wext.ibss.bssid, ETH_ALEN);
- return 0;
- }
+ else
+ memset(ap_addr->sa_data, 0, ETH_ALEN);
+
+ wdev_unlock(wdev);
- memcpy(ap_addr->sa_data, wdev->bssid, ETH_ALEN);
return 0;
}
-/* temporary symbol - mark GPL - in the future the handler won't be */
-EXPORT_SYMBOL_GPL(cfg80211_ibss_wext_giwap);
#endif
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-23 23:08:58 +0300