linux-stable/arch/cris
Johannes Berg 6e3e939f3b net: add wireless TX status socket option
The 802.1X EAPOL handshake hostapd does requires
knowing whether the frame was ack'ed by the peer.
Currently, we fudge this pretty badly by not even
transmitting the frame as a normal data frame but
injecting it with radiotap and getting the status
out of radiotap monitor as well. This is rather
complex, confuses users (mon.wlan0 presence) and
doesn't work with all hardware.

To get rid of that hack, introduce a real wifi TX
status option for data frame transmissions.

This works similar to the existing TX timestamping
in that it reflects the SKB back to the socket's
error queue with a SCM_WIFI_STATUS cmsg that has
an int indicating ACK status (0/1).

Since it is possible that at some point we will
want to have TX timestamping and wifi status in a
single errqueue SKB (there's little point in not
doing that), redefine SO_EE_ORIGIN_TIMESTAMPING
to SO_EE_ORIGIN_TXSTATUS which can collect more
than just the timestamp; keep the old constant
as an alias of course. Currently the internal APIs
don't make that possible, but it wouldn't be hard
to split them up in a way that makes it possible.

Thanks to Neil Horman for helping me figure out
the functions that add the control messages.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-11-09 16:01:02 -05:00
..
arch-v10 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2011-10-25 13:25:22 +02:00
arch-v32 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2011-10-25 13:25:22 +02:00
boot Fix common misspellings 2011-03-31 11:26:23 -03:00
configs kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
include net: add wireless TX status socket option 2011-11-09 16:01:02 -05:00
kernel atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
mm mm: now that all old mmu_gather code is gone, remove the storage 2011-05-25 08:39:16 -07:00
Kconfig Fix file references in Kconfig files 2011-10-11 15:24:17 +02:00
Kconfig.debug CRIS: Add config for pausing a seg-faulting process 2010-08-04 18:28:48 +02:00
Makefile arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0 2009-09-20 12:28:22 +02:00