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| author | Michal Kazior <michal.kazior@tieto.com> | 2012-06-29 12:47:07 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-06-29 13:39:19 +0200 |
| commit | d4e50c5917e110451ced8f8de594cea858791f37 (patch) | |
| tree | 078ac36d0642114f90b57e50ef9b585e2f8a5be9 /net/wireless/core.h | |
| parent | 2e165b818456ecc1024dd0387eeac64745526377 (diff) | |
| download | linux-d4e50c5917e110451ced8f8de594cea858791f37.tar.gz linux-d4e50c5917e110451ced8f8de594cea858791f37.tar.bz2 linux-d4e50c5917e110451ced8f8de594cea858791f37.zip | |
cfg80211: add channel checking for iface combinations
.connect cannot be handled since the driver scans
and connects on its own. It is up to the driver
then to refuse a connection (with -EBUSY for
example).
Non-fixed channel IBSSes always take a single
channel resource. For example two non-fixed
channel IBSSes always take up 2
num_different_channels, even if they operate on
the same channel at a given point of time.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/core.h')
| -rw-r--r-- | net/wireless/core.h | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index d5efe1b0a8f7..81fef3ddb5a8 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -428,9 +428,20 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, u32 *flags, struct vif_params *params); void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev); -int cfg80211_can_change_interface(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, - enum nl80211_iftype iftype); +int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + enum nl80211_iftype iftype, + struct ieee80211_channel *chan, + enum cfg80211_chan_mode chanmode); + +static inline int +cfg80211_can_change_interface(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + enum nl80211_iftype iftype) +{ + return cfg80211_can_use_iftype_chan(rdev, wdev, iftype, NULL, + CHAN_MODE_UNDEFINED); +} static inline int cfg80211_can_add_interface(struct cfg80211_registered_device *rdev, @@ -439,6 +450,16 @@ cfg80211_can_add_interface(struct cfg80211_registered_device *rdev, return cfg80211_can_change_interface(rdev, NULL, iftype); } +static inline int +cfg80211_can_use_chan(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + struct ieee80211_channel *chan, + enum cfg80211_chan_mode chanmode) +{ + return cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, + chan, chanmode); +} + void cfg80211_get_chan_state(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev, @@ -461,6 +482,8 @@ int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev, void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev, enum nl80211_iftype iftype, int num); +#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10 + #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS #define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond) #else |