mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 10:19:47 +00:00
![Greg Kroah-Hartman](/assets/img/avatar_default.png)
Use the in-kernel u16 type instead. Cc: Mikko Virkkilä <mikko.virkkila@bluegiga.com> Cc: Lauri Hintsala <Lauri.Hintsala@bluegiga.com> Cc: Riku Mettälä <riku.mettala@bluegiga.com> Cc: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/*
|
|
* ---------------------------------------------------------------------------
|
|
* FILE: data_tx.c
|
|
*
|
|
* PURPOSE:
|
|
* This file provides functions to send data requests to the UniFi.
|
|
*
|
|
* Copyright (C) 2007-2009 by Cambridge Silicon Radio Ltd.
|
|
*
|
|
* Refer to LICENSE.txt included with this source code for details on
|
|
* the license terms.
|
|
*
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
#include "csr_wifi_hip_unifi.h"
|
|
#include "unifi_priv.h"
|
|
|
|
int
|
|
uf_verify_m4(unifi_priv_t *priv, const unsigned char *packet, unsigned int length)
|
|
{
|
|
const unsigned char *p = packet;
|
|
u16 keyinfo;
|
|
|
|
|
|
if (length < (4 + 5 + 8 + 32 + 16 + 8 + 8 + 16 + 1 + 8)) {
|
|
return 1;
|
|
}
|
|
|
|
p += 8;
|
|
keyinfo = p[5] << 8 | p[6]; /* big-endian */
|
|
if (
|
|
(p[0] == 1 || p[0] == 2) /* protocol version 802.1X-2001 (WPA) or -2004 (WPA2) */ &&
|
|
p[1] == 3 /* EAPOL-Key */ &&
|
|
/* don't bother checking p[2] p[3] (hh ll, packet body length) */
|
|
(p[4] == 254 || p[4] == 2) /* descriptor type P802.1i-D3.0 (WPA) or 802.11i-2004 (WPA2) */ &&
|
|
((keyinfo & 0x0007) == 1 || (keyinfo & 0x0007) == 2) /* key descriptor version */ &&
|
|
(keyinfo & ~0x0207U) == 0x0108 && /* key info for 4/4 or 4/2 -- ignore key desc version and sec bit (since varies in WPA 4/4) */
|
|
(p[4 + 5 + 8 + 32 + 16 + 8 + 8 + 16 + 0] == 0 && /* key data length (2 octets) 0 for 4/4 only */
|
|
p[4 + 5 + 8 + 32 + 16 + 8 + 8 + 16 + 1] == 0)
|
|
) {
|
|
unifi_trace(priv, UDBG1, "uf_verify_m4: M4 detected \n");
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ---------------------------------------------------------------------------
|
|
*
|
|
* Data transport signals.
|
|
*
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
|