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mac80211/cfg80211: report monitor channel in wireless extensions

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Just add API to get the channel & report it. Trivial really.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-11-09 10:30:21 +01:00 committed by John W. Linville
parent 07ef03ee8b
commit e999882a05
3 changed files with 26 additions and 0 deletions
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5
include/net/cfg80211.h
View file

@ -1342,6 +1342,9 @@ struct cfg80211_gtk_rekey_data {
* doesn't verify much. Note, however, that the passed netdev may be
* %NULL as well if the user requested changing the channel for the
* device itself, or for a monitor interface.
* @get_channel: Get the current operating channel, should return %NULL if
* there's no single defined operating channel if for example the
* device implements channel hopping for multi-channel virtual interfaces.
*
* @scan: Request to do a scan. If returning zero, the scan request is given
* the driver, and will be valid until passed to cfg80211_scan_done().
@ -1627,6 +1630,8 @@ struct cfg80211_ops {
int (*probe_client)(struct wiphy *wiphy, struct net_device *dev,
const u8 *peer, u64 *cookie);
struct ieee80211_channel *(*get_channel)(struct wiphy *wiphy);
};
/*

9
net/mac80211/cfg.c
View file

@ -2590,6 +2590,14 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
return 0;
}
static struct ieee80211_channel *
ieee80211_wiphy_get_channel(struct wiphy *wiphy)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
return local->oper_channel;
}
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@ -2656,4 +2664,5 @@ struct cfg80211_ops mac80211_config_ops = {
.tdls_oper = ieee80211_tdls_oper,
.tdls_mgmt = ieee80211_tdls_mgmt,
.probe_client = ieee80211_probe_client,
.get_channel = ieee80211_wiphy_get_channel,
};

12
net/wireless/wext-compat.c
View file

@ -818,12 +818,24 @@ static int cfg80211_wext_giwfreq(struct net_device *dev,
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;
switch (wdev->iftype) {
case NL80211_IFTYPE_STATION:
return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
case NL80211_IFTYPE_ADHOC:
return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
case NL80211_IFTYPE_MONITOR:
if (!rdev->ops->get_channel)
return -EINVAL;
chan = rdev->ops->get_channel(wdev->wiphy);
if (!chan)
return -EINVAL;
freq->m = chan->center_freq;
freq->e = 6;
return 0;
default:
if (!wdev->channel)
return -EINVAL;