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| author | Michal Kazior <michal.kazior@tieto.com> | 2014-01-29 14:22:27 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-04 21:58:17 +0100 |
| commit | 9e0e29615a2077be852b1245b57c5b00fa609522 (patch) | |
| tree | 73d899373e01efe1fd72a895d8e2fe2f6bc8fcb2 /net/wireless/mesh.c | |
| parent | fe94f3a4ffaa20c7470038c69ffc8e545ef5f90a (diff) | |
| download | linux-9e0e29615a2077be852b1245b57c5b00fa609522.tar.gz linux-9e0e29615a2077be852b1245b57c5b00fa609522.tar.bz2 linux-9e0e29615a2077be852b1245b57c5b00fa609522.zip | |
cfg80211: consider existing DFS interfaces
It was possible to break interface combinations in
the following way:
combo 1: iftype = AP, num_ifaces = 2, num_chans = 2,
combo 2: iftype = AP, num_ifaces = 1, num_chans = 1, radar = HT20
With the above interface combinations it was
possible to:
step 1. start AP on DFS channel by matching combo 2
step 2. start AP on non-DFS channel by matching combo 1
This was possible beacuse (step 2) did not consider
if other interfaces require radar detection.
The patch changes how cfg80211 tracks channels -
instead of channel itself now a complete chandef
is stored.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/mesh.c')
| -rw-r--r-- | net/wireless/mesh.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c index 885862447b63..d42a3fcb2f67 100644 --- a/net/wireless/mesh.c +++ b/net/wireless/mesh.c @@ -195,7 +195,7 @@ 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->chandef.chan; + wdev->chandef = setup->chandef; } return err; @@ -244,7 +244,7 @@ int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev, err = rdev_libertas_set_mesh_channel(rdev, wdev->netdev, chandef->chan); if (!err) - wdev->channel = chandef->chan; + wdev->chandef = *chandef; return err; } @@ -276,7 +276,7 @@ static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, err = rdev_leave_mesh(rdev, dev); if (!err) { wdev->mesh_id_len = 0; - wdev->channel = NULL; + memset(&wdev->chandef, 0, sizeof(wdev->chandef)); rdev_set_qos_map(rdev, dev, NULL); } |