On Tuesday 21 August 2007, Johannes Berg wrote:
> This patch allows drivers to indicate bad FCS/PLCP CRC to the stack and
> have the stack drop packets like that except for monitor interfaces.
>
> Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
> ---
> Changes since v1:
> * filter bad frames early in the RX code and don't count
> them nor try to get a STA for them
>
> include/net/mac80211.h | 2 ++
> net/mac80211/rx.c | 31 ++++++++++++++++++++++++++++---
> 2 files changed, 30 insertions(+), 3 deletions(-)
>
> --- wireless-dev.orig/include/net/mac80211.h 2007-08-21 16:26:46.405923881 +0200
> +++ wireless-dev/include/net/mac80211.h 2007-08-21 16:28:19.015923881 +0200
> @@ -243,6 +243,8 @@ struct ieee80211_rx_status {
> #define RX_FLAG_MMIC_ERROR (1<<0)
> #define RX_FLAG_DECRYPTED (1<<1)
> #define RX_FLAG_RADIOTAP (1<<2)
> +#define RX_FLAG_FAILED_FCS_CRC (1<<3)
> +#define RX_FLAG_FAILED_PLCP_CRC (1<<4)
> int flag;
> };
Do we need another flag to indicate ICV errors?
rt2x00 has the following fields to indicate problems during hardware decryption:
ICV error -> How to report this to mac80211?
MIC error -> The RX_FLAG_MMIC_ERROR flag can be set
invalid key -> Could best be done by just not setting RX_FLAG_DECRYPTED I assume.
Ivo
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