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| author | Pontus Fuchs <pontus.fuchs@gmail.com> | 2012-06-12 14:13:19 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-06-13 10:23:21 +0200 |
| commit | ac4d82fa01c194dba10b9a7c35449ba36eb642fc (patch) | |
| tree | f4993dbd423f1ed62acb6ebcfe1f873c898d8c67 | |
| parent | e979e33c3972044e1be5e46552a02c3b9c0bc7a7 (diff) | |
| download | linux-ac4d82fa01c194dba10b9a7c35449ba36eb642fc.tar.bz2 | |
mac80211: Disallow changing chan type on monitor when CHAN_MODE_FIXED
If you add a monitor interface in parallel to a normal interface
mac80211 will let you to change the channel type on the monitor
interface even if you are connected. Add an explicit check to
disallow this.
Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
[fix typo in commit log, use sdata instead of netdev]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/mac80211/cfg.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 9a974579ba89..cd8b1fb05d42 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -689,7 +689,8 @@ static int ieee80211_set_channel(struct wiphy *wiphy, case CHAN_MODE_HOPPING: return -EBUSY; case CHAN_MODE_FIXED: - if (local->oper_channel != chan) + if (local->oper_channel != chan || + (!sdata && local->_oper_channel_type != channel_type)) return -EBUSY; if (!sdata && local->_oper_channel_type == channel_type) return 0; |