100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* p80211hdr.h 200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* Macros, types, and functions for handling 802.11 MAC headers 400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. 600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* -------------------------------------------------------------------- 700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* linux-wlan 900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 1000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* The contents of this file are subject to the Mozilla Public 1100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* License Version 1.1 (the "License"); you may not use this file 1200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* except in compliance with the License. You may obtain a copy of 1300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* the License at http://www.mozilla.org/MPL/ 1400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 1500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* Software distributed under the License is distributed on an "AS 1600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 1700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* implied. See the License for the specific language governing 1800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* rights and limitations under the License. 1900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 2000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* Alternatively, the contents of this file may be used under the 2100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* terms of the GNU Public License version 2 (the "GPL"), in which 2200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* case the provisions of the GPL are applicable instead of the 2300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* above. If you wish to allow the use of your version of this file 2400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* only under the terms of the GPL and not to allow others to use 2500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* your version of this file under the MPL, indicate your decision 2600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* by deleting the provisions above and replace them with the notice 2700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* and other provisions required by the GPL. If you do not delete 2800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* the provisions above, a recipient may use your version of this 2900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* file under either the MPL or the GPL. 3000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 3100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* -------------------------------------------------------------------- 3200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 3300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* Inquiries regarding the linux-wlan Open Source project can be 3400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* made directly to: 3500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 3600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* AbsoluteValue Systems Inc. 3700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* info@linux-wlan.com 3800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* http://www.linux-wlan.com 3900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 4000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* -------------------------------------------------------------------- 4100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 4200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* Portions of the development of this software were funded by 4300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* Intersil Corporation as part of PRISM(R) chipset product development. 4400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 4500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* -------------------------------------------------------------------- 4600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 4700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* This file declares the constants and types used in the interface 4800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* between a wlan driver and the user mode utilities. 4900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 5000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* Note: 5100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* - Constant values are always in HOST byte order. To assign 5200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* values to multi-byte fields they _must_ be converted to 5300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* ieee byte order. To retrieve multi-byte values from incoming 5400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* frames, they must be converted to host order. 5500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* 5600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* All functions declared here are implemented in p80211.c 5700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman* -------------------------------------------------------------------- 5800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman*/ 5900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 6000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#ifndef _P80211HDR_H 6100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define _P80211HDR_H 6200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 6328b17a4bdf148b7591c004efd10a8850d52849ecMoritz Muehlenhoff#include <linux/if_ether.h> 6428b17a4bdf148b7591c004efd10a8850d52849ecMoritz Muehlenhoff 6500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/*--- Sizes -----------------------------------------------*/ 6600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_CRC_LEN 4 6700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_BSSID_LEN 6 6800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_HDR_A3_LEN 24 6900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_HDR_A4_LEN 30 7000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_SSID_MAXLEN 32 7100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_DATA_MAXLEN 2312 7200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_WEP_IV_LEN 4 7300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_WEP_ICV_LEN 4 7400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 7500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/*--- Frame Control Field -------------------------------------*/ 7600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* Frame Types */ 7700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FTYPE_MGMT 0x00 7800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FTYPE_CTL 0x01 7900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FTYPE_DATA 0x02 8000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 8100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* Frame subtypes */ 8200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* Management */ 8300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_ASSOCREQ 0x00 8400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_ASSOCRESP 0x01 8500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_REASSOCREQ 0x02 8600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_REASSOCRESP 0x03 8700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_PROBEREQ 0x04 8800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_PROBERESP 0x05 8900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_BEACON 0x08 9000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_ATIM 0x09 9100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_DISASSOC 0x0a 9200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_AUTHEN 0x0b 9300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_DEAUTHEN 0x0c 9400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 9500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* Control */ 9600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_BLOCKACKREQ 0x8 9793df38e593d949de83a6447d016cc4b07d392f47Edgardo Hames#define WLAN_FSTYPE_BLOCKACK 0x9 9800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_PSPOLL 0x0a 9900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_RTS 0x0b 10000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_CTS 0x0c 10100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_ACK 0x0d 10200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_CFEND 0x0e 10300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_CFENDCFACK 0x0f 10400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 10500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* Data */ 10600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_DATAONLY 0x00 10700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_DATA_CFACK 0x01 10800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_DATA_CFPOLL 0x02 10900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_DATA_CFACK_CFPOLL 0x03 11000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_NULL 0x04 11100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_CFACK 0x05 11200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_CFPOLL 0x06 11300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FSTYPE_CFACK_CFPOLL 0x07 11400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 11500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/*--- FC Macros ----------------------------------------------*/ 11600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* Macros to get/set the bitfields of the Frame Control Field */ 11700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* GET_FC_??? - takes the host byte-order value of an FC */ 11800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* and retrieves the value of one of the */ 11900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* bitfields and moves that value so its lsb is */ 12000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* in bit 0. */ 12100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* SET_FC_??? - takes a host order value for one of the FC */ 12200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* bitfields and moves it to the proper bit */ 12300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* location for ORing into a host order FC. */ 12400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* To send the FC produced from SET_FC_???, */ 12500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* one must put the bytes in IEEE order. */ 12600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* e.g. */ 12700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* printf("the frame subtype is %x", */ 12800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* GET_FC_FTYPE( ieee2host( rx.fc ))) */ 12900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* */ 13000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* tx.fc = host2ieee( SET_FC_FTYPE(WLAN_FTYP_CTL) | */ 13100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* SET_FC_FSTYPE(WLAN_FSTYPE_RTS) ); */ 13200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/*------------------------------------------------------------*/ 13300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 1347f6e0e449c00bafe1c46471409fa1b8e4222dcf2Moritz Muehlenhoff#define WLAN_GET_FC_FTYPE(n) ((((u16)(n)) & (BIT(2) | BIT(3))) >> 2) 1357f6e0e449c00bafe1c46471409fa1b8e4222dcf2Moritz Muehlenhoff#define WLAN_GET_FC_FSTYPE(n) ((((u16)(n)) & (BIT(4)|BIT(5)|BIT(6)|BIT(7))) >> 4) 13693df38e593d949de83a6447d016cc4b07d392f47Edgardo Hames#define WLAN_GET_FC_TODS(n) ((((u16)(n)) & (BIT(8))) >> 8) 1377f6e0e449c00bafe1c46471409fa1b8e4222dcf2Moritz Muehlenhoff#define WLAN_GET_FC_FROMDS(n) ((((u16)(n)) & (BIT(9))) >> 9) 1387f6e0e449c00bafe1c46471409fa1b8e4222dcf2Moritz Muehlenhoff#define WLAN_GET_FC_ISWEP(n) ((((u16)(n)) & (BIT(14))) >> 14) 139aaad430378dd128ee015c8ed6e77809317c496a5Solomon Peachy 140aaad430378dd128ee015c8ed6e77809317c496a5Solomon Peachy#define WLAN_SET_FC_FTYPE(n) (((u16)(n)) << 2) 141aaad430378dd128ee015c8ed6e77809317c496a5Solomon Peachy#define WLAN_SET_FC_FSTYPE(n) (((u16)(n)) << 4) 14293df38e593d949de83a6447d016cc4b07d392f47Edgardo Hames#define WLAN_SET_FC_TODS(n) (((u16)(n)) << 8) 143aaad430378dd128ee015c8ed6e77809317c496a5Solomon Peachy#define WLAN_SET_FC_FROMDS(n) (((u16)(n)) << 9) 144aaad430378dd128ee015c8ed6e77809317c496a5Solomon Peachy#define WLAN_SET_FC_ISWEP(n) (((u16)(n)) << 14) 14500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 1467f6e0e449c00bafe1c46471409fa1b8e4222dcf2Moritz Muehlenhoff#define DOT11_RATE5_ISBASIC_GET(r) (((u8)(r)) & BIT(7)) 14700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 14800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* Generic 802.11 Header types */ 14900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 15093df38e593d949de83a6447d016cc4b07d392f47Edgardo Hamesstruct p80211_hdr_a3 { 151d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u16 fc; 152d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u16 dur; 153d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u8 a1[ETH_ALEN]; 154d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u8 a2[ETH_ALEN]; 155d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u8 a3[ETH_ALEN]; 156d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u16 seq; 1577d3864d1f6a496108c377f5580a2125c2f8d9014Bas van den Berg} __packed; 158d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff 15993df38e593d949de83a6447d016cc4b07d392f47Edgardo Hamesstruct p80211_hdr_a4 { 160d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u16 fc; 161d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u16 dur; 162d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u8 a1[ETH_ALEN]; 163d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u8 a2[ETH_ALEN]; 164d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u8 a3[ETH_ALEN]; 165d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u16 seq; 166d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff u8 a4[ETH_ALEN]; 1677d3864d1f6a496108c377f5580a2125c2f8d9014Bas van den Berg} __packed; 168d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff 16993df38e593d949de83a6447d016cc4b07d392f47Edgardo Hamesunion p80211_hdr { 17093df38e593d949de83a6447d016cc4b07d392f47Edgardo Hames struct p80211_hdr_a3 a3; 17193df38e593d949de83a6447d016cc4b07d392f47Edgardo Hames struct p80211_hdr_a4 a4; 1727d3864d1f6a496108c377f5580a2125c2f8d9014Bas van den Berg} __packed; 173d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff 174d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff/* Frame and header length macros */ 17500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 17600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_CTL_FRAMELEN(fstype) (\ 17700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman (fstype) == WLAN_FSTYPE_BLOCKACKREQ ? 24 : \ 17893df38e593d949de83a6447d016cc4b07d392f47Edgardo Hames (fstype) == WLAN_FSTYPE_BLOCKACK ? 152 : \ 17900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman (fstype) == WLAN_FSTYPE_PSPOLL ? 20 : \ 18000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman (fstype) == WLAN_FSTYPE_RTS ? 20 : \ 18100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman (fstype) == WLAN_FSTYPE_CTS ? 14 : \ 18200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman (fstype) == WLAN_FSTYPE_ACK ? 14 : \ 18300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman (fstype) == WLAN_FSTYPE_CFEND ? 20 : \ 18400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman (fstype) == WLAN_FSTYPE_CFENDCFACK ? 20 : 4) 18500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 18600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#define WLAN_FCS_LEN 4 18700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 18800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman/* ftcl in HOST order */ 189d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoffstatic inline u16 p80211_headerlen(u16 fctl) 19000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman{ 191aaad430378dd128ee015c8ed6e77809317c496a5Solomon Peachy u16 hdrlen = 0; 19200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 193d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff switch (WLAN_GET_FC_FTYPE(fctl)) { 19400b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman case WLAN_FTYPE_MGMT: 19500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman hdrlen = WLAN_HDR_A3_LEN; 19600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman break; 19700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman case WLAN_FTYPE_DATA: 19800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman hdrlen = WLAN_HDR_A3_LEN; 199d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff if (WLAN_GET_FC_TODS(fctl) && WLAN_GET_FC_FROMDS(fctl)) 20028b17a4bdf148b7591c004efd10a8850d52849ecMoritz Muehlenhoff hdrlen += ETH_ALEN; 20100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman break; 20200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman case WLAN_FTYPE_CTL: 20300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman hdrlen = WLAN_CTL_FRAMELEN(WLAN_GET_FC_FSTYPE(fctl)) - 204d6c82d9719fea4e6e0a279913ec6f81529faad9aMoritz Muehlenhoff WLAN_FCS_LEN; 20500b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman break; 20600b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman default: 20700b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman hdrlen = WLAN_HDR_A3_LEN; 20800b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman } 20900b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 21000b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman return hdrlen; 21100b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman} 21200b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman 21300b3ed1685089ff52169a715de11106ed37df087Greg Kroah-Hartman#endif /* _P80211HDR_H */ 214