On Mon, Nov 02, 2015 at 08:40:28PM +0530, Chaitanya T K wrote:
> From: tkc <chaitanya.mgit@xxxxxxxxx>
>
> Before the tx_status is received for the action frame, if we
> get another request, we respond to that by freeing the memory
> for pending_action_tx, but we don't cancel the TX wait, so
> in the kernel the ROC will not be cancelled.
>
> Due to above issue, wpa_supplicant assumes that all pending
> RoC's are cancelled and proceeds with interface creation and
> connection, where as state in mac80211/driver will be roc_in_progress.
>
> This is leading to issues at driver level.
>
> Signed-off-by: Chaitanya T K <chaitanya.mgit@xxxxxxxxx>
> ---
> V2: Fix 2 from's.
> Remove the unnecessary braces.
I'm not sure I'd call that "From:" in the message body fixed (i.e., it
should have been the second one, not the first one; alternatively, it
would be fine to remove that From: line from the message body since the
one in the message header has a value matching that SOB).
> diff --git a/wpa_supplicant/offchannel.c b/wpa_supplicant/offchannel.c
> @@ -253,15 +253,9 @@ int offchannel_send_action(struct wpa_supplicant *wpa_s, unsigned int freq,
>
> wpa_s->pending_action_tx_status_cb = tx_cb;
>
> - if (wpa_s->pending_action_tx) {
> - wpa_printf(MSG_DEBUG, "Off-channel: Dropped pending Action "
> - "frame TX to " MACSTR " (pending_action_tx=%p)",
> - MAC2STR(wpa_s->pending_action_dst),
> - wpa_s->pending_action_tx);
> - wpa_hexdump_buf(MSG_MSGDUMP, "Pending TX frame",
> - wpa_s->pending_action_tx);
> - wpabuf_free(wpa_s->pending_action_tx);
> - }
> + if (wpa_s->pending_action_tx)
> + offchannel_send_action_done(wpa_s);
As noted in your reply to this, those debug prints should not be
removed.
As far as the change to offchannel_send_action_done() is concerned, I'm
not sure it is the correct thing to do in all cases. Why would we cancel
Action frame TX wait or remain-on-channel if the new frame is for the
same channel?
--
Jouni Malinen PGP id EFC895FA
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