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Diffstat (limited to 'net/wireless/wext-sme.c')
-rw-r--r--net/wireless/wext-sme.c329
1 files changed, 329 insertions, 0 deletions
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
new file mode 100644
index 000000000000..3b531d572b69
--- /dev/null
+++ b/net/wireless/wext-sme.c
@@ -0,0 +1,329 @@
+/*
+ * cfg80211 wext compat for managed mode.
+ *
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (C) 2009 Intel Corporation. All rights reserved.
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <net/cfg80211.h>
+#include "nl80211.h"
+
+static int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev)
+{
+ int err;
+
+ if (!netif_running(wdev->netdev))
+ return 0;
+
+ wdev->wext.connect.ie = wdev->wext.ie;
+ wdev->wext.connect.ie_len = wdev->wext.ie_len;
+ wdev->wext.connect.privacy = wdev->wext.default_key != -1;
+
+ err = 0;
+ if (wdev->wext.connect.ssid_len != 0)
+ err = cfg80211_connect(rdev, wdev->netdev,
+ &wdev->wext.connect);
+
+ return err;
+}
+
+int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_freq *freq, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ struct ieee80211_channel *chan;
+ int err;
+
+ /* call only for station! */
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
+ return -EINVAL;
+
+ chan = cfg80211_wext_freq(wdev->wiphy, freq);
+ if (chan && IS_ERR(chan))
+ return PTR_ERR(chan);
+
+ if (chan && (chan->flags & IEEE80211_CHAN_DISABLED))
+ return -EINVAL;
+
+ if (wdev->wext.connect.channel == chan)
+ return 0;
+
+ if (wdev->sme_state != CFG80211_SME_IDLE) {
+ bool event = true;
+ /* if SSID set, we'll try right again, avoid event */
+ if (wdev->wext.connect.ssid_len)
+ event = false;
+ err = cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
+ dev, WLAN_REASON_DEAUTH_LEAVING,
+ event);
+ if (err)
+ return err;
+ }
+
+ wdev->wext.connect.channel = chan;
+
+ /* SSID is not set, we just want to switch channel */
+ if (wdev->wext.connect.ssid_len && chan) {
+ if (!rdev->ops->set_channel)
+ return -EOPNOTSUPP;
+
+ return rdev->ops->set_channel(wdev->wiphy, chan,
+ NL80211_CHAN_NO_HT);
+ }
+
+ return cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwfreq);
+
+int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_freq *freq, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct ieee80211_channel *chan = NULL;
+
+ /* call only for station! */
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
+ return -EINVAL;
+
+ if (wdev->current_bss)
+ chan = wdev->current_bss->channel;
+ else if (wdev->wext.connect.channel)
+ chan = wdev->wext.connect.channel;
+
+ if (chan) {
+ freq->m = chan->center_freq;
+ freq->e = 6;
+ return 0;
+ }
+
+ /* no channel if not joining */
+ return -EINVAL;
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwfreq);
+
+int cfg80211_mgd_wext_siwessid(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *ssid)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ size_t len = data->length;
+ int err;
+
+ /* call only for station! */
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
+ return -EINVAL;
+
+ if (!data->flags)
+ len = 0;
+
+ /* iwconfig uses nul termination in SSID.. */
+ if (len > 0 && ssid[len - 1] == '\0')
+ len--;
+
+ if (wdev->wext.connect.ssid && len &&
+ len == wdev->wext.connect.ssid_len &&
+ memcmp(wdev->wext.connect.ssid, ssid, len))
+ return 0;
+
+ if (wdev->sme_state != CFG80211_SME_IDLE) {
+ bool event = true;
+ /* if SSID set now, we'll try to connect, avoid event */
+ if (len)
+ event = false;
+ err = cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
+ dev, WLAN_REASON_DEAUTH_LEAVING,
+ event);
+ if (err)
+ return err;
+ }
+
+ wdev->wext.connect.ssid = wdev->wext.ssid;
+ memcpy(wdev->wext.ssid, ssid, len);
+ wdev->wext.connect.ssid_len = len;
+
+ wdev->wext.connect.crypto.control_port = false;
+
+ return cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwessid);
+
+int cfg80211_mgd_wext_giwessid(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *ssid)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+ /* call only for station! */
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
+ return -EINVAL;
+
+ data->flags = 0;
+
+ if (wdev->ssid_len) {
+ data->flags = 1;
+ data->length = wdev->ssid_len;
+ memcpy(ssid, wdev->ssid, data->length);
+ } else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
+ data->flags = 1;
+ data->length = wdev->wext.connect.ssid_len;
+ memcpy(ssid, wdev->wext.connect.ssid, data->length);
+ } else
+ data->flags = 0;
+
+ return 0;
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwessid);
+
+int cfg80211_mgd_wext_siwap(struct net_device *dev,
+ struct iw_request_info *info,
+ struct sockaddr *ap_addr, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ u8 *bssid = ap_addr->sa_data;
+ int err;
+
+ /* call only for station! */
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
+ return -EINVAL;
+
+ if (ap_addr->sa_family != ARPHRD_ETHER)
+ return -EINVAL;
+
+ /* automatic mode */
+ if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
+ bssid = NULL;
+
+ /* both automatic */
+ if (!bssid && !wdev->wext.connect.bssid)
+ return 0;
+
+ /* fixed already - and no change */
+ if (wdev->wext.connect.bssid && bssid &&
+ compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
+ return 0;
+
+ if (wdev->sme_state != CFG80211_SME_IDLE) {
+ err = cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
+ dev, WLAN_REASON_DEAUTH_LEAVING,
+ false);
+ if (err)
+ return err;
+ }
+
+ if (bssid) {
+ memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
+ wdev->wext.connect.bssid = wdev->wext.bssid;
+ } else
+ wdev->wext.connect.bssid = NULL;
+
+ return cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwap);
+
+int cfg80211_mgd_wext_giwap(struct net_device *dev,
+ struct iw_request_info *info,
+ struct sockaddr *ap_addr, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+ /* call only for station! */
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
+ return -EINVAL;
+
+ ap_addr->sa_family = ARPHRD_ETHER;
+
+ if (wdev->current_bss)
+ memcpy(ap_addr->sa_data, wdev->current_bss->bssid, ETH_ALEN);
+ else if (wdev->wext.connect.bssid)
+ memcpy(ap_addr->sa_data, wdev->wext.connect.bssid, ETH_ALEN);
+ else
+ memset(ap_addr->sa_data, 0, ETH_ALEN);
+
+ return 0;
+}
+/* temporary symbol - mark GPL - in the future the handler won't be */
+EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwap);
+
+int cfg80211_wext_siwgenie(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ u8 *ie = extra;
+ int ie_len = data->length, err;
+
+ if (wdev->iftype != NL80211_IFTYPE_STATION)
+ return -EOPNOTSUPP;
+
+ if (!ie_len)
+ ie = NULL;
+
+ /* no change */
+ if (wdev->wext.ie_len == ie_len &&
+ memcmp(wdev->wext.ie, ie, ie_len) == 0)
+ return 0;
+
+ if (ie_len) {
+ ie = kmemdup(extra, ie_len, GFP_KERNEL);
+ if (!ie)
+ return -ENOMEM;
+ } else
+ ie = NULL;
+
+ kfree(wdev->wext.ie);
+ wdev->wext.ie = ie;
+ wdev->wext.ie_len = ie_len;
+
+ if (wdev->sme_state != CFG80211_SME_IDLE) {
+ err = cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, false);
+ if (err)
+ return err;
+ }
+
+ /* userspace better not think we'll reconnect */
+ return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie);
+
+int cfg80211_wext_siwmlme(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct iw_mlme *mlme = (struct iw_mlme *)extra;
+ struct cfg80211_registered_device *rdev;
+
+ if (!wdev)
+ return -EOPNOTSUPP;
+
+ rdev = wiphy_to_dev(wdev->wiphy);
+
+ if (wdev->iftype != NL80211_IFTYPE_STATION)
+ return -EINVAL;
+
+ if (mlme->addr.sa_family != ARPHRD_ETHER)
+ return -EINVAL;
+
+ switch (mlme->cmd) {
+ case IW_MLME_DEAUTH:
+ case IW_MLME_DISASSOC:
+ return cfg80211_disconnect(rdev, dev, mlme->reason_code,
+ true);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-14 20:36:01 +0300