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mac80211: Add support for SIOCGIWRATE ioctl

PATCH New John W. Linville 1 participant 1 message May 31, 2007

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Networking Network drivers mac80211
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John W. Linville

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PATCH 1/1 mac80211: Add support for SIOCGIWRATE ioctl

From: Larry Finger <[email protected]>

At present, transmission rate information for mac80211 is available only if verbose debugging is turned on, and then only in the logs. This patch implements the SIOCGIWRATE ioctl, which adds the current transmission rate to the output of iwconfig.

Signed-off-by Larry Finger <[email protected]>
Signed-off-by John W. Linville <[email protected]>
---
 net/mac80211/ieee80211_ioctl.c |   25 ++++++++++++++++++++++++-
 1 files changed, 24 insertions(+), 1 deletions(-)
net/mac80211/ieee80211_ioctl.c +24 -1
index 352f03b..66e8a97 100644
@@ -838,6 +838,29 @@ static int ieee80211_ioctl_giwscan(struct net_device *dev,
 }
 
 
+static int ieee80211_ioctl_giwrate(struct net_device *dev,
+				  struct iw_request_info *info,
+				  struct iw_param *rate, char *extra)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct sta_info *sta;
+	struct ieee80211_sub_if_data *sdata;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	if (sdata->type == IEEE80211_IF_TYPE_STA)
+		sta = sta_info_get(local, sdata->u.sta.bssid);
+	else
+		return -EOPNOTSUPP;
+	if (!sta)
+		return -ENODEV;
+	if (sta->txrate < local->oper_hw_mode->num_rates)
+		rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
+	else
+		rate->value = 0;
+	sta_info_put(sta);
+	return 0;
+}
+
 static int ieee80211_ioctl_siwrts(struct net_device *dev,
 				  struct iw_request_info *info,
 				  struct iw_param *rts, char *extra)

@@ -1779,7 +1802,7 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) NULL,				/* -- hole -- */
 	(iw_handler) NULL,				/* -- hole -- */
 	(iw_handler) NULL,				/* SIOCSIWRATE */
-	(iw_handler) NULL,				/* SIOCGIWRATE */
+	(iw_handler) ieee80211_ioctl_giwrate,		/* SIOCGIWRATE */
 	(iw_handler) ieee80211_ioctl_siwrts,		/* SIOCSIWRTS */
 	(iw_handler) ieee80211_ioctl_giwrts,		/* SIOCGIWRTS */
 	(iw_handler) ieee80211_ioctl_siwfrag,		/* SIOCSIWFRAG */
Signature · 5 lines
1.5.0.6

-- 
John W. Linville
[email protected]