Re: [PATCH v5] mac80211: do not TX injected frames when not allowed

["Luis R. Rodriguez" <lrodriguez@atheros.com>]

On Fri, Jan 30, 2009 at 08:40:36AM -0800, Luis Rodriguez wrote:
> Monitor mode is able to TX by using injected frames. We should
> not allow injected frames to be sent unless allowed by regulatory
> rules. Since AP mode uses a monitor interfaces to transmit
> management frames we have to take care to not break AP mode as
> well while resolving this. We can deal with this by allowing compliant
> APs solutions to inform mac80211 if their monitor interface is
> intended to be used for an AP by setting a cfg80211 flag for the
> monitor interface. hostapd, for example, currently does its own
> checks to ensure AP mode is not used on channels which require radar
> detection. Once such solutions are available it can can add this
> flag for monitor interfaces.
> 
> Acked-by: Johannes Berg <johannes@sipsolutions.net>
> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
> ---
> 
> This v5 leaves the AP flag out, we can add it once we have radar support.
> 
>  net/mac80211/tx.c |   22 ++++++++++++++++++++++
>  1 files changed, 22 insertions(+), 0 deletions(-)
> 
> diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
> index 7b013fb..aa5ba90 100644
> --- a/net/mac80211/tx.c
> +++ b/net/mac80211/tx.c
> @@ -1432,11 +1432,33 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
>  int ieee80211_monitor_start_xmit(struct sk_buff *skb,
>                                  struct net_device *dev)
>  {
> +       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);

unused variable now, bleh, sorry, will send v6.. hopefully the last heh.

  Luis