1 files changed, 593 insertions, 7 deletions

diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 0fd1db6e95bb..d030c5315672 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -5,13 +5,14 @@
  * into cfg80211, when that happens all the exports here go away and
  * we directly assign the wireless handlers of wireless interfaces.
  *
- * Copyright 2008	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2008-2009	Johannes Berg <johannes@sipsolutions.net>
  */
 
 #include <linux/wireless.h>
 #include <linux/nl80211.h>
+#include <linux/if_arp.h>
+#include <linux/etherdevice.h>
 #include <net/iw_handler.h>
-#include <net/wireless.h>
 #include <net/cfg80211.h>
 #include "core.h"
 
@@ -57,7 +58,7 @@ int cfg80211_wext_giwname(struct net_device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL(cfg80211_wext_giwname);
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
 
 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 			  u32 *mode, char *extra)
@@ -108,7 +109,7 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 
 	return ret;
 }
-EXPORT_SYMBOL(cfg80211_wext_siwmode);
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 
 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 			  u32 *mode, char *extra)
@@ -143,7 +144,7 @@ int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 	}
 	return 0;
 }
-EXPORT_SYMBOL(cfg80211_wext_giwmode);
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
 
 
 int cfg80211_wext_giwrange(struct net_device *dev,
@@ -206,7 +207,6 @@ int cfg80211_wext_giwrange(struct net_device *dev,
 	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 			  IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
 
-
 	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
 		int i;
 		struct ieee80211_supported_band *sband;
@@ -240,4 +240,590 @@ int cfg80211_wext_giwrange(struct net_device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL(cfg80211_wext_giwrange);
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
+
+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;
+	union {
+		struct cfg80211_disassoc_request disassoc;
+		struct cfg80211_deauth_request deauth;
+	} cmd;
+
+	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;
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	switch (mlme->cmd) {
+	case IW_MLME_DEAUTH:
+		if (!rdev->ops->deauth)
+			return -EOPNOTSUPP;
+		cmd.deauth.peer_addr = mlme->addr.sa_data;
+		cmd.deauth.reason_code = mlme->reason_code;
+		return rdev->ops->deauth(wdev->wiphy, dev, &cmd.deauth);
+	case IW_MLME_DISASSOC:
+		if (!rdev->ops->disassoc)
+			return -EOPNOTSUPP;
+		cmd.disassoc.peer_addr = mlme->addr.sa_data;
+		cmd.disassoc.reason_code = mlme->reason_code;
+		return rdev->ops->disassoc(wdev->wiphy, dev, &cmd.disassoc);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);
+
+
+/**
+ * cfg80211_wext_freq - get wext frequency for non-"auto"
+ * @wiphy: the wiphy
+ * @freq: the wext freq encoding
+ *
+ * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
+ */
+struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
+					     struct iw_freq *freq)
+{
+	struct ieee80211_channel *chan;
+	int f;
+
+	/*
+	 * Parse frequency - return NULL for auto and
+	 * -EINVAL for impossible things.
+	 */
+	if (freq->e == 0) {
+		if (freq->m < 0)
+			return NULL;
+		f = 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;
+	}
+
+	/*
+	 * 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;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_freq);
+
+int cfg80211_wext_siwrts(struct net_device *dev,
+			 struct iw_request_info *info,
+			 struct iw_param *rts, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	u32 orts = wdev->wiphy->rts_threshold;
+	int err;
+
+	if (rts->disabled || !rts->fixed)
+		wdev->wiphy->rts_threshold = (u32) -1;
+	else if (rts->value < 0)
+		return -EINVAL;
+	else
+		wdev->wiphy->rts_threshold = rts->value;
+
+	err = rdev->ops->set_wiphy_params(wdev->wiphy,
+					  WIPHY_PARAM_RTS_THRESHOLD);
+	if (err)
+		wdev->wiphy->rts_threshold = orts;
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
+
+int cfg80211_wext_giwrts(struct net_device *dev,
+			 struct iw_request_info *info,
+			 struct iw_param *rts, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	rts->value = wdev->wiphy->rts_threshold;
+	rts->disabled = rts->value == (u32) -1;
+	rts->fixed = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
+
+int cfg80211_wext_siwfrag(struct net_device *dev,
+			  struct iw_request_info *info,
+			  struct iw_param *frag, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	u32 ofrag = wdev->wiphy->frag_threshold;
+	int err;
+
+	if (frag->disabled || !frag->fixed)
+		wdev->wiphy->frag_threshold = (u32) -1;
+	else if (frag->value < 256)
+		return -EINVAL;
+	else {
+		/* Fragment length must be even, so strip LSB. */
+		wdev->wiphy->frag_threshold = frag->value & ~0x1;
+	}
+
+	err = rdev->ops->set_wiphy_params(wdev->wiphy,
+					  WIPHY_PARAM_FRAG_THRESHOLD);
+	if (err)
+		wdev->wiphy->frag_threshold = ofrag;
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
+
+int cfg80211_wext_giwfrag(struct net_device *dev,
+			  struct iw_request_info *info,
+			  struct iw_param *frag, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	frag->value = wdev->wiphy->frag_threshold;
+	frag->disabled = frag->value == (u32) -1;
+	frag->fixed = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
+
+int cfg80211_wext_siwretry(struct net_device *dev,
+			   struct iw_request_info *info,
+			   struct iw_param *retry, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	u32 changed = 0;
+	u8 olong = wdev->wiphy->retry_long;
+	u8 oshort = wdev->wiphy->retry_short;
+	int err;
+
+	if (retry->disabled ||
+	    (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
+		return -EINVAL;
+
+	if (retry->flags & IW_RETRY_LONG) {
+		wdev->wiphy->retry_long = retry->value;
+		changed |= WIPHY_PARAM_RETRY_LONG;
+	} else if (retry->flags & IW_RETRY_SHORT) {
+		wdev->wiphy->retry_short = retry->value;
+		changed |= WIPHY_PARAM_RETRY_SHORT;
+	} else {
+		wdev->wiphy->retry_short = retry->value;
+		wdev->wiphy->retry_long = retry->value;
+		changed |= WIPHY_PARAM_RETRY_LONG;
+		changed |= WIPHY_PARAM_RETRY_SHORT;
+	}
+
+	if (!changed)
+		return 0;
+
+	err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
+	if (err) {
+		wdev->wiphy->retry_short = oshort;
+		wdev->wiphy->retry_long = olong;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
+
+int cfg80211_wext_giwretry(struct net_device *dev,
+			   struct iw_request_info *info,
+			   struct iw_param *retry, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	retry->disabled = 0;
+
+	if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
+		/*
+		 * First return short value, iwconfig will ask long value
+		 * later if needed
+		 */
+		retry->flags |= IW_RETRY_LIMIT;
+		retry->value = wdev->wiphy->retry_short;
+		if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
+			retry->flags |= IW_RETRY_LONG;
+
+		return 0;
+	}
+
+	if (retry->flags & IW_RETRY_LONG) {
+		retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
+		retry->value = wdev->wiphy->retry_long;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
+
+static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
+				   struct net_device *dev, const u8 *addr,
+				   bool remove, bool tx_key, int idx,
+				   struct key_params *params)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
+		if (!rdev->ops->set_default_mgmt_key)
+			return -EOPNOTSUPP;
+
+		if (idx < 4 || idx > 5)
+			return -EINVAL;
+	} else if (idx < 0 || idx > 3)
+		return -EINVAL;
+
+	if (remove) {
+		err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
+		if (!err) {
+			if (idx == wdev->wext.default_key)
+				wdev->wext.default_key = -1;
+			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;
+
+		return err;
+	} else {
+		if (addr)
+			tx_key = false;
+
+		if (cfg80211_validate_key_settings(params, idx, addr))
+			return -EINVAL;
+
+		err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
+		if (err)
+			return err;
+
+		if (tx_key || (!addr && wdev->wext.default_key == -1)) {
+			err = rdev->ops->set_default_key(&rdev->wiphy,
+							 dev, idx);
+			if (!err)
+				wdev->wext.default_key = idx;
+			return err;
+		}
+
+		if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
+		    (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
+			err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
+							      dev, idx);
+			if (!err)
+				wdev->wext.default_mgmt_key = idx;
+			return err;
+		}
+
+		return 0;
+	}
+}
+
+int cfg80211_wext_siwencode(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_point *erq, char *keybuf)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int idx, err;
+	bool remove = false;
+	struct key_params params;
+
+	/* no use -- only MFP (set_default_mgmt_key) is optional */
+	if (!rdev->ops->del_key ||
+	    !rdev->ops->add_key ||
+	    !rdev->ops->set_default_key)
+		return -EOPNOTSUPP;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (idx == 0) {
+		idx = wdev->wext.default_key;
+		if (idx < 0)
+			idx = 0;
+	} else if (idx < 1 || idx > 4)
+		return -EINVAL;
+	else
+		idx--;
+
+	if (erq->flags & IW_ENCODE_DISABLED)
+		remove = true;
+	else if (erq->length == 0) {
+		/* No key data - just set the default TX key index */
+		err = rdev->ops->set_default_key(&rdev->wiphy, dev, idx);
+		if (!err)
+			wdev->wext.default_key = idx;
+		return err;
+	}
+
+	memset(&params, 0, sizeof(params));
+	params.key = keybuf;
+	params.key_len = erq->length;
+	if (erq->length == 5)
+		params.cipher = WLAN_CIPHER_SUITE_WEP40;
+	else if (erq->length == 13)
+		params.cipher = WLAN_CIPHER_SUITE_WEP104;
+	else if (!remove)
+		return -EINVAL;
+
+	return cfg80211_set_encryption(rdev, dev, NULL, remove,
+				       wdev->wext.default_key == -1,
+				       idx, &params);
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
+
+int cfg80211_wext_siwencodeext(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct iw_point *erq, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
+	const u8 *addr;
+	int idx;
+	bool remove = false;
+	struct key_params params;
+	u32 cipher;
+
+	/* no use -- only MFP (set_default_mgmt_key) is optional */
+	if (!rdev->ops->del_key ||
+	    !rdev->ops->add_key ||
+	    !rdev->ops->set_default_key)
+		return -EOPNOTSUPP;
+
+	switch (ext->alg) {
+	case IW_ENCODE_ALG_NONE:
+		remove = true;
+		cipher = 0;
+		break;
+	case IW_ENCODE_ALG_WEP:
+		if (ext->key_len == 5)
+			cipher = WLAN_CIPHER_SUITE_WEP40;
+		else if (ext->key_len == 13)
+			cipher = WLAN_CIPHER_SUITE_WEP104;
+		else
+			return -EINVAL;
+		break;
+	case IW_ENCODE_ALG_TKIP:
+		cipher = WLAN_CIPHER_SUITE_TKIP;
+		break;
+	case IW_ENCODE_ALG_CCMP:
+		cipher = WLAN_CIPHER_SUITE_CCMP;
+		break;
+	case IW_ENCODE_ALG_AES_CMAC:
+		cipher = WLAN_CIPHER_SUITE_AES_CMAC;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	if (erq->flags & IW_ENCODE_DISABLED)
+		remove = true;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
+		if (idx < 4 || idx > 5) {
+			idx = wdev->wext.default_mgmt_key;
+			if (idx < 0)
+				return -EINVAL;
+		} else
+			idx--;
+	} else {
+		if (idx < 1 || idx > 4) {
+			idx = wdev->wext.default_key;
+			if (idx < 0)
+				return -EINVAL;
+		} else
+			idx--;
+	}
+
+	addr = ext->addr.sa_data;
+	if (is_broadcast_ether_addr(addr))
+		addr = NULL;
+
+	memset(&params, 0, sizeof(params));
+	params.key = ext->key;
+	params.key_len = ext->key_len;
+	params.cipher = cipher;
+
+	if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
+		params.seq = ext->rx_seq;
+		params.seq_len = 6;
+	}
+
+	return cfg80211_set_encryption(
+			rdev, dev, addr, remove,
+			ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
+			idx, &params);
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
+
+struct giwencode_cookie {
+	size_t buflen;
+	char *keybuf;
+};
+
+static void giwencode_get_key_cb(void *cookie, struct key_params *params)
+{
+	struct giwencode_cookie *data = cookie;
+
+	if (!params->key) {
+		data->buflen = 0;
+		return;
+	}
+
+	data->buflen = min_t(size_t, data->buflen, params->key_len);
+	memcpy(data->keybuf, params->key, data->buflen);
+}
+
+int cfg80211_wext_giwencode(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_point *erq, char *keybuf)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int idx, err;
+	struct giwencode_cookie data = {
+		.keybuf = keybuf,
+		.buflen = erq->length,
+	};
+
+	if (!rdev->ops->get_key)
+		return -EOPNOTSUPP;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (idx == 0) {
+		idx = wdev->wext.default_key;
+		if (idx < 0)
+			idx = 0;
+	} else if (idx < 1 || idx > 4)
+		return -EINVAL;
+	else
+		idx--;
+
+	erq->flags = idx + 1;
+
+	err = rdev->ops->get_key(&rdev->wiphy, dev, idx, NULL, &data,
+				 giwencode_get_key_cb);
+	if (!err) {
+		erq->length = data.buflen;
+		erq->flags |= IW_ENCODE_ENABLED;
+		return 0;
+	}
+
+	if (err == -ENOENT) {
+		erq->flags |= IW_ENCODE_DISABLED;
+		erq->length = 0;
+		return 0;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
+
+int cfg80211_wext_siwtxpower(struct net_device *dev,
+			     struct iw_request_info *info,
+			     union iwreq_data *data, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	enum tx_power_setting type;
+	int dbm = 0;
+
+	if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+		return -EINVAL;
+	if (data->txpower.flags & IW_TXPOW_RANGE)
+		return -EINVAL;
+
+	if (!rdev->ops->set_tx_power)
+		return -EOPNOTSUPP;
+
+	/* only change when not disabling */
+	if (!data->txpower.disabled) {
+		rfkill_set_sw_state(rdev->rfkill, false);
+
+		if (data->txpower.fixed) {
+			/*
+			 * wext doesn't support negative values, see
+			 * below where it's for automatic
+			 */
+			if (data->txpower.value < 0)
+				return -EINVAL;
+			dbm = data->txpower.value;
+			type = TX_POWER_FIXED;
+			/* TODO: do regulatory check! */
+		} else {
+			/*
+			 * Automatic power level setting, max being the value
+			 * passed in from userland.
+			 */
+			if (data->txpower.value < 0) {
+				type = TX_POWER_AUTOMATIC;
+			} else {
+				dbm = data->txpower.value;
+				type = TX_POWER_LIMITED;
+			}
+		}
+	} else {
+		rfkill_set_sw_state(rdev->rfkill, true);
+		schedule_work(&rdev->rfkill_sync);
+		return 0;
+	}
+
+	return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
+
+int cfg80211_wext_giwtxpower(struct net_device *dev,
+			     struct iw_request_info *info,
+			     union iwreq_data *data, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int err, val;
+
+	if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+		return -EINVAL;
+	if (data->txpower.flags & IW_TXPOW_RANGE)
+		return -EINVAL;
+
+	if (!rdev->ops->get_tx_power)
+		return -EOPNOTSUPP;
+
+	err = rdev->ops->get_tx_power(wdev->wiphy, &val);
+	if (err)
+		return err;
+
+	/* well... oh well */
+	data->txpower.fixed = 1;
+	data->txpower.disabled = rfkill_blocked(rdev->rfkill);
+	data->txpower.value = val;
+	data->txpower.flags = IW_TXPOW_DBM;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);