ipv4: udp: fix short packet and bad checksum logging
[safe/jmp/linux-2.6] / net / wireless / wext-compat.c
index e4e90e2..a60a277 100644 (file)
@@ -12,6 +12,7 @@
 #include <linux/nl80211.h>
 #include <linux/if_arp.h>
 #include <linux/etherdevice.h>
+#include <linux/slab.h>
 #include <net/iw_handler.h>
 #include <net/cfg80211.h>
 #include "wext-compat.h"
@@ -70,18 +71,8 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
        enum nl80211_iftype type;
        int ret;
 
-       if (!wdev)
-               return -EOPNOTSUPP;
-
        rdev = wiphy_to_dev(wdev->wiphy);
 
-       if (!rdev->ops->change_virtual_intf)
-               return -EOPNOTSUPP;
-
-       /* don't support changing VLANs, you just re-create them */
-       if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
-               return -EOPNOTSUPP;
-
        switch (*mode) {
        case IW_MODE_INFRA:
                type = NL80211_IFTYPE_STATION;
@@ -104,9 +95,9 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 
        memset(&vifparams, 0, sizeof(vifparams));
 
-       ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev, type,
-                                            NULL, &vifparams);
-       WARN_ON(!ret && wdev->iftype != type);
+       cfg80211_lock_rdev(rdev);
+       ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
+       cfg80211_unlock_rdev(rdev);
 
        return ret;
 }
@@ -267,39 +258,26 @@ EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
  * @wiphy: the wiphy
  * @freq: the wext freq encoding
  *
- * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
+ * Returns a frequency, or a negative error code, or 0 for auto.
  */
-struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
-                                            struct iw_freq *freq)
+int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
 {
-       struct ieee80211_channel *chan;
-       int f;
-
        /*
-        * Parse frequency - return NULL for auto and
+        * Parse frequency - return 0 for auto and
         * -EINVAL for impossible things.
         */
        if (freq->e == 0) {
                if (freq->m < 0)
-                       return NULL;
-               f = ieee80211_channel_to_frequency(freq->m);
+                       return 0;
+               return ieee80211_channel_to_frequency(freq->m);
        } else {
                int i, div = 1000000;
                for (i = 0; i < freq->e; i++)
                        div /= 10;
                if (div <= 0)
-                       return ERR_PTR(-EINVAL);
-               f = freq->m / div;
+                       return -EINVAL;
+               return freq->m / div;
        }
-
-       /*
-        * Look up channel struct and return -EINVAL when
-        * it cannot be found.
-        */
-       chan = ieee80211_get_channel(wiphy, f);
-       if (!chan)
-               return ERR_PTR(-EINVAL);
-       return chan;
 }
 
 int cfg80211_wext_siwrts(struct net_device *dev,
@@ -460,6 +438,7 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 {
        struct wireless_dev *wdev = dev->ieee80211_ptr;
        int err, i;
+       bool rejoin = false;
 
        if (!wdev->wext.keys) {
                wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
@@ -489,8 +468,25 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 
        if (remove) {
                err = 0;
-               if (wdev->current_bss)
+               if (wdev->current_bss) {
+                       /*
+                        * If removing the current TX key, we will need to
+                        * join a new IBSS without the privacy bit clear.
+                        */
+                       if (idx == wdev->wext.default_key &&
+                           wdev->iftype == NL80211_IFTYPE_ADHOC) {
+                               __cfg80211_leave_ibss(rdev, wdev->netdev, true);
+                               rejoin = true;
+                       }
                        err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
+               }
+               wdev->wext.connect.privacy = false;
+               /*
+                * Applications using wireless extensions expect to be
+                * able to delete keys that don't exist, so allow that.
+                */
+               if (err == -ENOENT)
+                       err = 0;
                if (!err) {
                        if (!addr) {
                                wdev->wext.keys->params[idx].key_len = 0;
@@ -501,12 +497,9 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
                        else if (idx == wdev->wext.default_mgmt_key)
                                wdev->wext.default_mgmt_key = -1;
                }
-               /*
-                * Applications using wireless extensions expect to be
-                * able to delete keys that don't exist, so allow that.
-                */
-               if (err == -ENOENT)
-                       return 0;
+
+               if (!err && rejoin)
+                       err = cfg80211_ibss_wext_join(rdev, wdev);
 
                return err;
        }
@@ -534,11 +527,25 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
        if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
             params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
            (tx_key || (!addr && wdev->wext.default_key == -1))) {
-               if (wdev->current_bss)
+               if (wdev->current_bss) {
+                       /*
+                        * If we are getting a new TX key from not having
+                        * had one before we need to join a new IBSS with
+                        * the privacy bit set.
+                        */
+                       if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
+                           wdev->wext.default_key == -1) {
+                               __cfg80211_leave_ibss(rdev, wdev->netdev, true);
+                               rejoin = true;
+                       }
                        err = rdev->ops->set_default_key(&rdev->wiphy,
                                                         dev, idx);
-               if (!err)
+               }
+               if (!err) {
                        wdev->wext.default_key = idx;
+                       if (rejoin)
+                               err = cfg80211_ibss_wext_join(rdev, wdev);
+               }
                return err;
        }
 
@@ -562,10 +569,13 @@ static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 {
        int err;
 
+       /* devlist mutex needed for possible IBSS re-join */
+       mutex_lock(&rdev->devlist_mtx);
        wdev_lock(dev->ieee80211_ptr);
        err = __cfg80211_set_encryption(rdev, dev, addr, remove,
                                        tx_key, idx, params);
        wdev_unlock(dev->ieee80211_ptr);
+       mutex_unlock(&rdev->devlist_mtx);
 
        return err;
 }
@@ -761,30 +771,27 @@ EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
 
 int cfg80211_wext_siwfreq(struct net_device *dev,
                          struct iw_request_info *info,
-                         struct iw_freq *freq, char *extra)
+                         struct iw_freq *wextfreq, 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;
+       int freq, err;
 
        switch (wdev->iftype) {
        case NL80211_IFTYPE_STATION:
-               return cfg80211_mgd_wext_siwfreq(dev, info, freq, extra);
+               return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
        case NL80211_IFTYPE_ADHOC:
-               return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
+               return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
        default:
-               chan = cfg80211_wext_freq(wdev->wiphy, freq);
-               if (!chan)
+               freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
+               if (freq < 0)
+                       return freq;
+               if (freq == 0)
                        return -EINVAL;
-               if (IS_ERR(chan))
-                       return PTR_ERR(chan);
-               err = rdev->ops->set_channel(wdev->wiphy, chan,
-                                            NL80211_CHAN_NO_HT);
-               if (err)
-                       return err;
-               rdev->channel = chan;
-               return 0;
+               mutex_lock(&rdev->devlist_mtx);
+               err = rdev_set_freq(rdev, NULL, freq, NL80211_CHAN_NO_HT);
+               mutex_unlock(&rdev->devlist_mtx);
+               return err;
        }
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
@@ -860,7 +867,7 @@ int cfg80211_wext_siwtxpower(struct net_device *dev,
                return 0;
        }
 
-       return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
+       return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
 
@@ -930,8 +937,6 @@ static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 
 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 {
-       wdev->wext.connect.crypto.wpa_versions = 0;
-
        if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
                             IW_AUTH_WPA_VERSION_WPA2|
                             IW_AUTH_WPA_VERSION_DISABLED))
@@ -959,8 +964,6 @@ static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 
 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 {
-       wdev->wext.connect.crypto.cipher_group = 0;
-
        if (cipher & IW_AUTH_CIPHER_WEP40)
                wdev->wext.connect.crypto.cipher_group =
                        WLAN_CIPHER_SUITE_WEP40;
@@ -976,6 +979,8 @@ static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
        else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
                wdev->wext.connect.crypto.cipher_group =
                        WLAN_CIPHER_SUITE_AES_CMAC;
+       else if (cipher & IW_AUTH_CIPHER_NONE)
+               wdev->wext.connect.crypto.cipher_group = 0;
        else
                return -EINVAL;
 
@@ -1095,8 +1100,8 @@ int cfg80211_wext_siwpower(struct net_device *dev,
 {
        struct wireless_dev *wdev = dev->ieee80211_ptr;
        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
-       bool ps = wdev->wext.ps;
-       int timeout = wdev->wext.ps_timeout;
+       bool ps = wdev->ps;
+       int timeout = wdev->ps_timeout;
        int err;
 
        if (wdev->iftype != NL80211_IFTYPE_STATION)
@@ -1129,8 +1134,8 @@ int cfg80211_wext_siwpower(struct net_device *dev,
        if (err)
                return err;
 
-       wdev->wext.ps = ps;
-       wdev->wext.ps_timeout = timeout;
+       wdev->ps = ps;
+       wdev->ps_timeout = timeout;
 
        return 0;
 
@@ -1143,7 +1148,7 @@ int cfg80211_wext_giwpower(struct net_device *dev,
 {
        struct wireless_dev *wdev = dev->ieee80211_ptr;
 
-       wrq->disabled = !wdev->wext.ps;
+       wrq->disabled = !wdev->ps;
 
        return 0;
 }
@@ -1200,21 +1205,47 @@ int cfg80211_wext_siwrate(struct net_device *dev,
        struct wireless_dev *wdev = dev->ieee80211_ptr;
        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
        struct cfg80211_bitrate_mask mask;
+       u32 fixed, maxrate;
+       struct ieee80211_supported_band *sband;
+       int band, ridx;
+       bool match = false;
 
        if (!rdev->ops->set_bitrate_mask)
                return -EOPNOTSUPP;
 
-       mask.fixed = 0;
-       mask.maxrate = 0;
+       memset(&mask, 0, sizeof(mask));
+       fixed = 0;
+       maxrate = (u32)-1;
 
        if (rate->value < 0) {
                /* nothing */
        } else if (rate->fixed) {
-               mask.fixed = rate->value / 1000; /* kbps */
+               fixed = rate->value / 100000;
        } else {
-               mask.maxrate = rate->value / 1000; /* kbps */
+               maxrate = rate->value / 100000;
+       }
+
+       for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+               sband = wdev->wiphy->bands[band];
+               if (sband == NULL)
+                       continue;
+               for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
+                       struct ieee80211_rate *srate = &sband->bitrates[ridx];
+                       if (fixed == srate->bitrate) {
+                               mask.control[band].legacy = 1 << ridx;
+                               match = true;
+                               break;
+                       }
+                       if (srate->bitrate <= maxrate) {
+                               mask.control[band].legacy |= 1 << ridx;
+                               match = true;
+                       }
+               }
        }
 
+       if (!match)
+               return -EINVAL;
+
        return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
@@ -1253,10 +1284,7 @@ int cfg80211_wext_giwrate(struct net_device *dev,
        if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
                return -EOPNOTSUPP;
 
-       rate->value = 0;
-
-       if (!(sinfo.txrate.flags & RATE_INFO_FLAGS_MCS))
-               rate->value = 100000 * sinfo.txrate.legacy;
+       rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
 
        return 0;
 }
@@ -1398,6 +1426,47 @@ int cfg80211_wext_giwessid(struct net_device *dev,
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
 
+int cfg80211_wext_siwpmksa(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);
+       struct cfg80211_pmksa cfg_pmksa;
+       struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
+
+       memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
+
+       if (wdev->iftype != NL80211_IFTYPE_STATION)
+               return -EINVAL;
+
+       cfg_pmksa.bssid = pmksa->bssid.sa_data;
+       cfg_pmksa.pmkid = pmksa->pmkid;
+
+       switch (pmksa->cmd) {
+       case IW_PMKSA_ADD:
+               if (!rdev->ops->set_pmksa)
+                       return -EOPNOTSUPP;
+
+               return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
+
+       case IW_PMKSA_REMOVE:
+               if (!rdev->ops->del_pmksa)
+                       return -EOPNOTSUPP;
+
+               return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
+
+       case IW_PMKSA_FLUSH:
+               if (!rdev->ops->flush_pmksa)
+                       return -EOPNOTSUPP;
+
+               return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
+
+       default:
+               return -EOPNOTSUPP;
+       }
+}
+
 static const iw_handler cfg80211_handlers[] = {
        [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
        [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
@@ -1430,6 +1499,7 @@ static const iw_handler cfg80211_handlers[] = {
        [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
        [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
        [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
+       [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
 };
 
 const struct iw_handler_def cfg80211_wext_handler = {