[PATCH] wireless: Add softmac layer to the kernel

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 390 insertions, 0 deletions

diff --git a/net/ieee80211/softmac/ieee80211softmac_wx.c b/net/ieee80211/softmac/ieee80211softmac_wx.c
new file mode 100644
index 000000000000..bae5fcc11967
--- /dev/null
+++ b/net/ieee80211/softmac/ieee80211softmac_wx.c
@@ -0,0 +1,390 @@
+/*
+ * This file contains our _wx handlers. Make sure you EXPORT_SYMBOL_GPL them
+ */
+
+#include "ieee80211softmac_priv.h"
+
+#include <net/iw_handler.h>
+
+
+int
+ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
+				 struct iw_request_info *info,
+				 union iwreq_data *data,
+				 char *extra)
+{
+	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
+	return ieee80211softmac_start_scan(sm);
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan);
+
+
+int
+ieee80211softmac_wx_get_scan_results(struct net_device *net_dev,
+				     struct iw_request_info *info,
+				     union iwreq_data *data,
+				     char *extra)
+{
+	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
+	return ieee80211_wx_get_scan(sm->ieee, info, data, extra);
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results);
+
+int
+ieee80211softmac_wx_set_essid(struct net_device *net_dev,
+			      struct iw_request_info *info,
+			      union iwreq_data *data,
+			      char *extra)
+{
+	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
+	int length = 0;
+	unsigned long flags;
+	
+	spin_lock_irqsave(&sm->lock, flags);
+	
+	sm->associnfo.static_essid = 0;
+
+	if (data->essid.flags && data->essid.length && extra /*required?*/) {
+		length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE);
+		if (length) {
+			memcpy(sm->associnfo.req_essid.data, extra, length);
+			sm->associnfo.static_essid = 1;
+		}
+	}
+	sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
+
+	/* set our requested ESSID length.
+	 * If applicable, we have already copied the data in */
+	sm->associnfo.req_essid.len = length;
+
+	/* queue lower level code to do work (if necessary) */
+	queue_work(sm->workqueue, &sm->associnfo.work);
+
+	spin_unlock_irqrestore(&sm->lock, flags);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_essid);
+
+int
+ieee80211softmac_wx_get_essid(struct net_device *net_dev,
+			      struct iw_request_info *info,
+			      union iwreq_data *data,
+			      char *extra)
+{
+	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
+	unsigned long flags;
+
+	/* avoid getting inconsistent information */
+	spin_lock_irqsave(&sm->lock, flags);
+	/* If all fails, return ANY (empty) */
+	data->essid.length = 0;
+	data->essid.flags = 0;  /* active */
+	
+	/* If we have a statically configured ESSID then return it */
+	if (sm->associnfo.static_essid) {
+		data->essid.length = sm->associnfo.req_essid.len;
+		data->essid.flags = 1;  /* active */
+		memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len);
+	}
+	
+	/* If we're associating/associated, return that */
+	if (sm->associated || sm->associnfo.associating) {
+		data->essid.length = sm->associnfo.associate_essid.len;
+		data->essid.flags = 1;  /* active */
+		memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len);
+	}
+	spin_unlock_irqrestore(&sm->lock, flags);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_essid);
+
+int
+ieee80211softmac_wx_set_rate(struct net_device *net_dev,
+			     struct iw_request_info *info,
+			     union iwreq_data *data,
+			     char *extra)
+{
+	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
+	struct ieee80211_device *ieee = mac->ieee;
+	unsigned long flags;
+	s32 in_rate = data->bitrate.value;
+	u8 rate;
+	int is_ofdm = 0;
+	int err = -EINVAL;
+
+	if (in_rate == -1) {
+		/* automatic detect */
+		if (ieee->modulation & IEEE80211_OFDM_MODULATION)
+			in_rate = 54000000;
+		else
+			in_rate = 11000000;
+	}
+
+	switch (in_rate) {
+	case 1000000:
+		rate = IEEE80211_CCK_RATE_1MB;
+		break;
+	case 2000000:
+		rate = IEEE80211_CCK_RATE_2MB;
+		break;
+	case 5500000:
+		rate = IEEE80211_CCK_RATE_5MB;
+		break;
+	case 11000000:
+		rate = IEEE80211_CCK_RATE_11MB;
+		break;
+	case 6000000:
+		rate = IEEE80211_OFDM_RATE_6MB;
+		is_ofdm = 1;
+		break;
+	case 9000000:
+		rate = IEEE80211_OFDM_RATE_9MB;
+		is_ofdm = 1;
+		break;
+	case 12000000:
+		rate = IEEE80211_OFDM_RATE_12MB;
+		is_ofdm = 1;
+		break;
+	case 18000000:
+		rate = IEEE80211_OFDM_RATE_18MB;
+		is_ofdm = 1;
+		break;
+	case 24000000:
+		rate = IEEE80211_OFDM_RATE_24MB;
+		is_ofdm = 1;
+		break;
+	case 36000000:
+		rate = IEEE80211_OFDM_RATE_36MB;
+		is_ofdm = 1;
+		break;
+	case 48000000:
+		rate = IEEE80211_OFDM_RATE_48MB;
+		is_ofdm = 1;
+		break;
+	case 54000000:
+		rate = IEEE80211_OFDM_RATE_54MB;
+		is_ofdm = 1;
+		break;
+	default:
+		goto out;
+	}
+
+	spin_lock_irqsave(&mac->lock, flags);
+
+	/* Check if correct modulation for this PHY. */
+	if (is_ofdm && !(ieee->modulation & IEEE80211_OFDM_MODULATION))
+		goto out_unlock;
+
+	mac->txrates.default_rate = rate;
+	mac->txrates.default_fallback = lower_rate(mac, rate);
+	err = 0;
+
+out_unlock:	
+	spin_unlock_irqrestore(&mac->lock, flags);
+out:
+	return err;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_rate);
+
+int
+ieee80211softmac_wx_get_rate(struct net_device *net_dev,
+			     struct iw_request_info *info,
+			     union iwreq_data *data,
+			     char *extra)
+{
+	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
+	unsigned long flags;
+	int err = -EINVAL;
+
+	spin_lock_irqsave(&mac->lock, flags);
+	switch (mac->txrates.default_rate) {
+	case IEEE80211_CCK_RATE_1MB:
+		data->bitrate.value = 1000000;
+		break;
+	case IEEE80211_CCK_RATE_2MB:
+		data->bitrate.value = 2000000;
+		break;
+	case IEEE80211_CCK_RATE_5MB:
+		data->bitrate.value = 5500000;
+		break;
+	case IEEE80211_CCK_RATE_11MB:
+		data->bitrate.value = 11000000;
+		break;
+	case IEEE80211_OFDM_RATE_6MB:
+		data->bitrate.value = 6000000;
+		break;
+	case IEEE80211_OFDM_RATE_9MB:
+		data->bitrate.value = 9000000;
+		break;
+	case IEEE80211_OFDM_RATE_12MB:
+		data->bitrate.value = 12000000;
+		break;
+	case IEEE80211_OFDM_RATE_18MB:
+		data->bitrate.value = 18000000;
+		break;
+	case IEEE80211_OFDM_RATE_24MB:
+		data->bitrate.value = 24000000;
+		break;
+	case IEEE80211_OFDM_RATE_36MB:
+		data->bitrate.value = 36000000;
+		break;
+	case IEEE80211_OFDM_RATE_48MB:
+		data->bitrate.value = 48000000;
+		break;
+	case IEEE80211_OFDM_RATE_54MB:
+		data->bitrate.value = 54000000;
+		break;
+	default:
+		assert(0);
+		goto out_unlock;
+	}
+	err = 0;
+out_unlock:
+	spin_unlock_irqrestore(&mac->lock, flags);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_rate);
+
+int
+ieee80211softmac_wx_get_wap(struct net_device *net_dev,
+			    struct iw_request_info *info,
+			    union iwreq_data *data,
+			    char *extra)
+{
+	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
+	int err = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&mac->lock, flags);
+	if (mac->associnfo.bssvalid)
+		memcpy(data->ap_addr.sa_data, mac->associnfo.bssid, ETH_ALEN);
+	else
+		memset(data->ap_addr.sa_data, 0xff, ETH_ALEN);
+	data->ap_addr.sa_family = ARPHRD_ETHER;
+	spin_unlock_irqrestore(&mac->lock, flags);
+	return err;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_wap);
+
+int
+ieee80211softmac_wx_set_wap(struct net_device *net_dev,
+			    struct iw_request_info *info,
+			    union iwreq_data *data,
+			    char *extra)
+{
+	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
+	static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+	static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+	unsigned long flags;
+
+	/* sanity check */
+	if (data->ap_addr.sa_family != ARPHRD_ETHER) {
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&mac->lock, flags);
+	if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) ||
+	    !memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) {
+		queue_work(mac->workqueue, &mac->associnfo.work);
+		goto out;
+        } else {
+		if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) {
+			if (mac->associnfo.associating || mac->associated) {
+			/* bssid unchanged and associated or associating - just return */
+				goto out;
+			}
+		} else {
+			/* copy new value in data->ap_addr.sa_data to bssid */
+			memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN);
+		}	
+		/* queue associate if new bssid or (old one again and not associated) */
+		queue_work(mac->workqueue,&mac->associnfo.work);
+        }
+
+out:
+	spin_unlock_irqrestore(&mac->lock, flags);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap);
+
+int
+ieee80211softmac_wx_set_genie(struct net_device *dev,
+			      struct iw_request_info *info,
+			      union iwreq_data *wrqu,
+			      char *extra)
+{
+	struct ieee80211softmac_device *mac = ieee80211_priv(dev);
+	unsigned long flags;
+	int err = 0;
+	char *buf;
+	int i;
+	
+	spin_lock_irqsave(&mac->lock, flags);
+	/* bleh. shouldn't be locked for that kmalloc... */
+
+	if (wrqu->data.length) {
+		if ((wrqu->data.length < 2) || (extra[1]+2 != wrqu->data.length)) {
+			/* this is an IE, so the length must be
+			 * correct. Is it possible though that
+			 * more than one IE is passed in?
+			 */
+			err = -EINVAL;
+			goto out;
+		}
+		if (mac->wpa.IEbuflen <= wrqu->data.length) {
+			buf = kmalloc(wrqu->data.length, GFP_ATOMIC);
+			if (!buf) {
+				err = -ENOMEM;
+				goto out;
+			}
+			kfree(mac->wpa.IE);
+			mac->wpa.IE = buf;
+			mac->wpa.IEbuflen = wrqu->data.length;
+		}
+		memcpy(mac->wpa.IE, extra, wrqu->data.length);
+		dprintk(KERN_INFO PFX "generic IE set to ");
+		for (i=0;i<wrqu->data.length;i++)
+			dprintk("%.2x", mac->wpa.IE[i]);
+		dprintk("\n");
+		mac->wpa.IElen = wrqu->data.length;
+	} else {
+		kfree(mac->wpa.IE);
+		mac->wpa.IE = NULL;
+		mac->wpa.IElen = 0;
+		mac->wpa.IEbuflen = 0;
+	}
+
+ out:	
+	spin_unlock_irqrestore(&mac->lock, flags);
+	return err;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie);
+
+int
+ieee80211softmac_wx_get_genie(struct net_device *dev,
+			      struct iw_request_info *info,
+			      union iwreq_data *wrqu,
+			      char *extra)
+{
+	struct ieee80211softmac_device *mac = ieee80211_priv(dev);
+	unsigned long flags;
+	int err = 0;
+	int space = wrqu->data.length;
+	
+	spin_lock_irqsave(&mac->lock, flags);
+	
+	wrqu->data.length = 0;
+	
+	if (mac->wpa.IE && mac->wpa.IElen) {
+		wrqu->data.length = mac->wpa.IElen;
+		if (mac->wpa.IElen <= space)
+			memcpy(extra, mac->wpa.IE, mac->wpa.IElen);
+		else
+			err = -E2BIG;
+	}
+	spin_unlock_irqrestore(&mac->lock, flags);
+	return err;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie);
+