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authorMichal Kazior <michal.kazior@tieto.com>2012-06-29 12:46:58 +0200
committerJohannes Berg <johannes.berg@intel.com>2012-06-29 13:39:15 +0200
commitf4489ebeffa436c8427a20e2f05004e783708cde (patch)
treef113512858b0114cc108375b81cab004e8a8369b
parentac800140c20e7ae51117e71289065bedd4930fc2 (diff)
cfg80211: add channel tracking for AP and mesh
We need to know which channel is used by a running AP and mesh for channel context accounting and finding matching/active interface combination. STA/IBSS have current_bss already which allows us to check which channel a vif is tuned to. Non-fixed channel IBSS can be handled with additional changes. Monitor mode is going to be handled differently. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--include/net/cfg80211.h3
-rw-r--r--net/wireless/ap.c4
-rw-r--r--net/wireless/mesh.c18
-rw-r--r--net/wireless/mlme.c1
-rw-r--r--net/wireless/nl80211.c1
5 files changed, 22 insertions, 5 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 1fc89c4f930c..c62bc7864adf 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2408,6 +2408,9 @@ struct wireless_dev {
struct ieee80211_channel *preset_chan;
enum nl80211_channel_type preset_chantype;
+ /* for AP and mesh channel tracking */
+ struct ieee80211_channel *channel;
+
bool ps;
int ps_timeout;
diff --git a/net/wireless/ap.c b/net/wireless/ap.c
index 45199cca63d5..fcc60d8dbefa 100644
--- a/net/wireless/ap.c
+++ b/net/wireless/ap.c
@@ -24,8 +24,10 @@ static int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
return -ENOENT;
err = rdev->ops->stop_ap(&rdev->wiphy, dev);
- if (!err)
+ if (!err) {
wdev->beacon_interval = 0;
+ wdev->channel = NULL;
+ }
return err;
}
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 3b73b07486cf..bab381344723 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -159,6 +159,7 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
if (!err) {
memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len);
wdev->mesh_id_len = setup->mesh_id_len;
+ wdev->channel = setup->channel;
}
return err;
@@ -184,6 +185,7 @@ int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev,
enum nl80211_channel_type channel_type)
{
struct ieee80211_channel *channel;
+ int err;
channel = rdev_freq_to_chan(rdev, freq, channel_type);
if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
@@ -205,9 +207,14 @@ int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev,
if (!netif_running(wdev->netdev))
return -ENETDOWN;
- return rdev->ops->libertas_set_mesh_channel(&rdev->wiphy,
- wdev->netdev,
- channel);
+
+ err = rdev->ops->libertas_set_mesh_channel(&rdev->wiphy,
+ wdev->netdev,
+ channel);
+ if (!err)
+ wdev->channel = channel;
+
+ return err;
}
if (wdev->mesh_id_len)
@@ -249,8 +256,11 @@ static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
return -ENOTCONN;
err = rdev->ops->leave_mesh(&rdev->wiphy, dev);
- if (!err)
+ if (!err) {
wdev->mesh_id_len = 0;
+ wdev->channel = NULL;
+ }
+
return err;
}
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index da4406f11929..a7882eb8c46e 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -947,6 +947,7 @@ void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
if (WARN_ON(!chan))
goto out;
+ wdev->channel = chan;
nl80211_ch_switch_notify(rdev, dev, freq, type, GFP_KERNEL);
out:
wdev_unlock(wdev);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 20d0fd6d1286..12096b4ebf62 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2488,6 +2488,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
wdev->preset_chan = params.channel;
wdev->preset_chantype = params.channel_type;
wdev->beacon_interval = params.beacon_interval;
+ wdev->channel = params.channel;
}
return err;
}