1319 lines
38 KiB
C
1319 lines
38 KiB
C
/*
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* Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
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* remains copyright by the original authors
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*
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* Portions of the merged code are based on Host AP (software wireless
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* LAN access point) driver for Intersil Prism2/2.5/3.
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*
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* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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* <j@w1.fi>
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* Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
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*
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* Adaption to a generic IEEE 802.11 stack by James Ketrenos
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* <jketreno@linux.intel.com>
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* Copyright (c) 2004-2005, Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation. See README and COPYING for
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* more details.
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*
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* API Version History
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* 1.0.x -- Initial version
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* 1.1.x -- Added radiotap, QoS, TIM, ieee80211_geo APIs,
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* various structure changes, and crypto API init method
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*/
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#ifndef IEEE80211_H
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#define IEEE80211_H
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#include <linux/if_ether.h> /* ETH_ALEN */
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#include <linux/kernel.h> /* ARRAY_SIZE */
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#include <linux/wireless.h>
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#define IEEE80211_VERSION "git-1.1.13"
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#define IEEE80211_DATA_LEN 2304
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/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
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6.2.1.1.2.
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The figure in section 7.1.2 suggests a body size of up to 2312
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bytes is allowed, which is a bit confusing, I suspect this
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represents the 2304 bytes of real data, plus a possible 8 bytes of
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WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
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#define IEEE80211_1ADDR_LEN 10
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#define IEEE80211_2ADDR_LEN 16
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#define IEEE80211_3ADDR_LEN 24
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#define IEEE80211_4ADDR_LEN 30
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#define IEEE80211_FCS_LEN 4
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#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
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#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
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#define MIN_FRAG_THRESHOLD 256U
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#define MAX_FRAG_THRESHOLD 2346U
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/* Frame control field constants */
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#define IEEE80211_FCTL_VERS 0x0003
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#define IEEE80211_FCTL_FTYPE 0x000c
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#define IEEE80211_FCTL_STYPE 0x00f0
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#define IEEE80211_FCTL_TODS 0x0100
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#define IEEE80211_FCTL_FROMDS 0x0200
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#define IEEE80211_FCTL_MOREFRAGS 0x0400
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#define IEEE80211_FCTL_RETRY 0x0800
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#define IEEE80211_FCTL_PM 0x1000
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#define IEEE80211_FCTL_MOREDATA 0x2000
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#define IEEE80211_FCTL_PROTECTED 0x4000
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#define IEEE80211_FCTL_ORDER 0x8000
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#define IEEE80211_FTYPE_MGMT 0x0000
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#define IEEE80211_FTYPE_CTL 0x0004
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#define IEEE80211_FTYPE_DATA 0x0008
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/* management */
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#define IEEE80211_STYPE_ASSOC_REQ 0x0000
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#define IEEE80211_STYPE_ASSOC_RESP 0x0010
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#define IEEE80211_STYPE_REASSOC_REQ 0x0020
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#define IEEE80211_STYPE_REASSOC_RESP 0x0030
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#define IEEE80211_STYPE_PROBE_REQ 0x0040
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#define IEEE80211_STYPE_PROBE_RESP 0x0050
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#define IEEE80211_STYPE_BEACON 0x0080
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#define IEEE80211_STYPE_ATIM 0x0090
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#define IEEE80211_STYPE_DISASSOC 0x00A0
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#define IEEE80211_STYPE_AUTH 0x00B0
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#define IEEE80211_STYPE_DEAUTH 0x00C0
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#define IEEE80211_STYPE_ACTION 0x00D0
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/* control */
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#define IEEE80211_STYPE_PSPOLL 0x00A0
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#define IEEE80211_STYPE_RTS 0x00B0
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#define IEEE80211_STYPE_CTS 0x00C0
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#define IEEE80211_STYPE_ACK 0x00D0
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#define IEEE80211_STYPE_CFEND 0x00E0
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#define IEEE80211_STYPE_CFENDACK 0x00F0
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/* data */
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#define IEEE80211_STYPE_DATA 0x0000
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#define IEEE80211_STYPE_DATA_CFACK 0x0010
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#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
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#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
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#define IEEE80211_STYPE_NULLFUNC 0x0040
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#define IEEE80211_STYPE_CFACK 0x0050
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#define IEEE80211_STYPE_CFPOLL 0x0060
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#define IEEE80211_STYPE_CFACKPOLL 0x0070
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#define IEEE80211_STYPE_QOS_DATA 0x0080
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#define IEEE80211_SCTL_FRAG 0x000F
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#define IEEE80211_SCTL_SEQ 0xFFF0
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/* QOS control */
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#define IEEE80211_QCTL_TID 0x000F
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/* debug macros */
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#ifdef CONFIG_IEEE80211_DEBUG
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extern u32 ieee80211_debug_level;
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#define IEEE80211_DEBUG(level, fmt, args...) \
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do { if (ieee80211_debug_level & (level)) \
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printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
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in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
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static inline bool ieee80211_ratelimit_debug(u32 level)
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{
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return (ieee80211_debug_level & level) && net_ratelimit();
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}
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#else
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#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
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static inline bool ieee80211_ratelimit_debug(u32 level)
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{
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return false;
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}
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#endif /* CONFIG_IEEE80211_DEBUG */
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/* escape_essid() is intended to be used in debug (and possibly error)
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* messages. It should never be used for passing essid to user space. */
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const char *escape_essid(const char *essid, u8 essid_len);
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/*
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* To use the debug system:
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*
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* If you are defining a new debug classification, simply add it to the #define
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* list here in the form of:
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*
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* #define IEEE80211_DL_xxxx VALUE
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*
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* shifting value to the left one bit from the previous entry. xxxx should be
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* the name of the classification (for example, WEP)
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*
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* You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
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* classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
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* to send output to that classification.
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*
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* To add your debug level to the list of levels seen when you perform
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*
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* % cat /proc/net/ieee80211/debug_level
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*
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* you simply need to add your entry to the ieee80211_debug_level array.
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*
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* If you do not see debug_level in /proc/net/ieee80211 then you do not have
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* CONFIG_IEEE80211_DEBUG defined in your kernel configuration
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*
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*/
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#define IEEE80211_DL_INFO (1<<0)
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#define IEEE80211_DL_WX (1<<1)
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#define IEEE80211_DL_SCAN (1<<2)
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#define IEEE80211_DL_STATE (1<<3)
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#define IEEE80211_DL_MGMT (1<<4)
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#define IEEE80211_DL_FRAG (1<<5)
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#define IEEE80211_DL_DROP (1<<7)
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#define IEEE80211_DL_TX (1<<8)
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#define IEEE80211_DL_RX (1<<9)
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#define IEEE80211_DL_QOS (1<<31)
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#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
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#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
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#define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
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#define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
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#define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
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#define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
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#define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
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#define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
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#define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
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#define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
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#define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
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#define IEEE80211_DEBUG_QOS(f, a...) IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
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#include <linux/netdevice.h>
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#include <linux/if_arp.h> /* ARPHRD_ETHER */
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#ifndef WIRELESS_SPY
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#define WIRELESS_SPY /* enable iwspy support */
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#endif
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#include <net/iw_handler.h> /* new driver API */
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#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
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#ifndef ETH_P_80211_RAW
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#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
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#endif
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/* IEEE 802.11 defines */
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#define P80211_OUI_LEN 3
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struct ieee80211_snap_hdr {
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u8 dsap; /* always 0xAA */
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u8 ssap; /* always 0xAA */
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u8 ctrl; /* always 0x03 */
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u8 oui[P80211_OUI_LEN]; /* organizational universal id */
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} __attribute__ ((packed));
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#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
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#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
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#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
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#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
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#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
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#define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
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/* Authentication algorithms */
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#define WLAN_AUTH_OPEN 0
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#define WLAN_AUTH_SHARED_KEY 1
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#define WLAN_AUTH_LEAP 2
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#define WLAN_AUTH_CHALLENGE_LEN 128
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#define WLAN_CAPABILITY_ESS (1<<0)
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#define WLAN_CAPABILITY_IBSS (1<<1)
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#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
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#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
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#define WLAN_CAPABILITY_PRIVACY (1<<4)
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#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
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#define WLAN_CAPABILITY_PBCC (1<<6)
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#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
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#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
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#define WLAN_CAPABILITY_QOS (1<<9)
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#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
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#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
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/* 802.11g ERP information element */
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#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
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#define WLAN_ERP_USE_PROTECTION (1<<1)
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#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
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/* Status codes */
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enum ieee80211_statuscode {
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WLAN_STATUS_SUCCESS = 0,
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WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
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WLAN_STATUS_CAPS_UNSUPPORTED = 10,
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WLAN_STATUS_REASSOC_NO_ASSOC = 11,
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WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
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WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
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WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
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WLAN_STATUS_CHALLENGE_FAIL = 15,
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WLAN_STATUS_AUTH_TIMEOUT = 16,
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WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
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WLAN_STATUS_ASSOC_DENIED_RATES = 18,
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/* 802.11b */
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WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
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WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
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WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
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/* 802.11h */
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WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
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WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
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WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
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/* 802.11g */
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WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
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WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
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/* 802.11i */
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WLAN_STATUS_INVALID_IE = 40,
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WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
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WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
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WLAN_STATUS_INVALID_AKMP = 43,
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WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
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WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
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WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
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};
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/* Reason codes */
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enum ieee80211_reasoncode {
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WLAN_REASON_UNSPECIFIED = 1,
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WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
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WLAN_REASON_DEAUTH_LEAVING = 3,
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WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
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WLAN_REASON_DISASSOC_AP_BUSY = 5,
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WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
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WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
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WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
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WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
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/* 802.11h */
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WLAN_REASON_DISASSOC_BAD_POWER = 10,
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WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
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/* 802.11i */
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WLAN_REASON_INVALID_IE = 13,
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WLAN_REASON_MIC_FAILURE = 14,
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WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
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WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
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WLAN_REASON_IE_DIFFERENT = 17,
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WLAN_REASON_INVALID_GROUP_CIPHER = 18,
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WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
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WLAN_REASON_INVALID_AKMP = 20,
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WLAN_REASON_UNSUPP_RSN_VERSION = 21,
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WLAN_REASON_INVALID_RSN_IE_CAP = 22,
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WLAN_REASON_IEEE8021X_FAILED = 23,
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WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
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};
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/* Action categories - 802.11h */
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enum ieee80211_actioncategories {
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WLAN_ACTION_SPECTRUM_MGMT = 0,
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/* Reserved 1-127 */
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/* Error 128-255 */
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};
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/* Action details - 802.11h */
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enum ieee80211_actiondetails {
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WLAN_ACTION_CATEGORY_MEASURE_REQUEST = 0,
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WLAN_ACTION_CATEGORY_MEASURE_REPORT = 1,
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WLAN_ACTION_CATEGORY_TPC_REQUEST = 2,
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WLAN_ACTION_CATEGORY_TPC_REPORT = 3,
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WLAN_ACTION_CATEGORY_CHANNEL_SWITCH = 4,
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/* 5 - 255 Reserved */
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};
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#define IEEE80211_STATMASK_SIGNAL (1<<0)
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#define IEEE80211_STATMASK_RSSI (1<<1)
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#define IEEE80211_STATMASK_NOISE (1<<2)
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#define IEEE80211_STATMASK_RATE (1<<3)
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#define IEEE80211_STATMASK_WEMASK 0x7
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#define IEEE80211_CCK_MODULATION (1<<0)
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#define IEEE80211_OFDM_MODULATION (1<<1)
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#define IEEE80211_24GHZ_BAND (1<<0)
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#define IEEE80211_52GHZ_BAND (1<<1)
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#define IEEE80211_CCK_RATE_1MB 0x02
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#define IEEE80211_CCK_RATE_2MB 0x04
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#define IEEE80211_CCK_RATE_5MB 0x0B
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#define IEEE80211_CCK_RATE_11MB 0x16
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#define IEEE80211_OFDM_RATE_6MB 0x0C
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#define IEEE80211_OFDM_RATE_9MB 0x12
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#define IEEE80211_OFDM_RATE_12MB 0x18
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#define IEEE80211_OFDM_RATE_18MB 0x24
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#define IEEE80211_OFDM_RATE_24MB 0x30
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#define IEEE80211_OFDM_RATE_36MB 0x48
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#define IEEE80211_OFDM_RATE_48MB 0x60
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#define IEEE80211_OFDM_RATE_54MB 0x6C
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#define IEEE80211_BASIC_RATE_MASK 0x80
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#define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
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#define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
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#define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
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#define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
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#define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
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#define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
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#define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
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#define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
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#define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
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#define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
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#define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
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#define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
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#define IEEE80211_CCK_RATES_MASK 0x0000000F
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#define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
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IEEE80211_CCK_RATE_2MB_MASK)
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#define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
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IEEE80211_CCK_RATE_5MB_MASK | \
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IEEE80211_CCK_RATE_11MB_MASK)
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#define IEEE80211_OFDM_RATES_MASK 0x00000FF0
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#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
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IEEE80211_OFDM_RATE_12MB_MASK | \
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IEEE80211_OFDM_RATE_24MB_MASK)
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#define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
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IEEE80211_OFDM_RATE_9MB_MASK | \
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IEEE80211_OFDM_RATE_18MB_MASK | \
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IEEE80211_OFDM_RATE_36MB_MASK | \
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IEEE80211_OFDM_RATE_48MB_MASK | \
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IEEE80211_OFDM_RATE_54MB_MASK)
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#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
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IEEE80211_CCK_DEFAULT_RATES_MASK)
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#define IEEE80211_NUM_OFDM_RATES 8
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#define IEEE80211_NUM_CCK_RATES 4
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#define IEEE80211_OFDM_SHIFT_MASK_A 4
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/* NOTE: This data is for statistical purposes; not all hardware provides this
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* information for frames received.
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* For ieee80211_rx_mgt, you need to set at least the 'len' parameter.
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*/
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struct ieee80211_rx_stats {
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u32 mac_time;
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s8 rssi;
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u8 signal;
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u8 noise;
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u16 rate; /* in 100 kbps */
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u8 received_channel;
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u8 control;
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u8 mask;
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u8 freq;
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u16 len;
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u64 tsf;
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u32 beacon_time;
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};
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/* IEEE 802.11 requires that STA supports concurrent reception of at least
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* three fragmented frames. This define can be increased to support more
|
|
* concurrent frames, but it should be noted that each entry can consume about
|
|
* 2 kB of RAM and increasing cache size will slow down frame reassembly. */
|
|
#define IEEE80211_FRAG_CACHE_LEN 4
|
|
|
|
struct ieee80211_frag_entry {
|
|
unsigned long first_frag_time;
|
|
unsigned int seq;
|
|
unsigned int last_frag;
|
|
struct sk_buff *skb;
|
|
u8 src_addr[ETH_ALEN];
|
|
u8 dst_addr[ETH_ALEN];
|
|
};
|
|
|
|
struct ieee80211_stats {
|
|
unsigned int tx_unicast_frames;
|
|
unsigned int tx_multicast_frames;
|
|
unsigned int tx_fragments;
|
|
unsigned int tx_unicast_octets;
|
|
unsigned int tx_multicast_octets;
|
|
unsigned int tx_deferred_transmissions;
|
|
unsigned int tx_single_retry_frames;
|
|
unsigned int tx_multiple_retry_frames;
|
|
unsigned int tx_retry_limit_exceeded;
|
|
unsigned int tx_discards;
|
|
unsigned int rx_unicast_frames;
|
|
unsigned int rx_multicast_frames;
|
|
unsigned int rx_fragments;
|
|
unsigned int rx_unicast_octets;
|
|
unsigned int rx_multicast_octets;
|
|
unsigned int rx_fcs_errors;
|
|
unsigned int rx_discards_no_buffer;
|
|
unsigned int tx_discards_wrong_sa;
|
|
unsigned int rx_discards_undecryptable;
|
|
unsigned int rx_message_in_msg_fragments;
|
|
unsigned int rx_message_in_bad_msg_fragments;
|
|
};
|
|
|
|
struct ieee80211_device;
|
|
|
|
#include "ieee80211_crypt.h"
|
|
|
|
#define SEC_KEY_1 (1<<0)
|
|
#define SEC_KEY_2 (1<<1)
|
|
#define SEC_KEY_3 (1<<2)
|
|
#define SEC_KEY_4 (1<<3)
|
|
#define SEC_ACTIVE_KEY (1<<4)
|
|
#define SEC_AUTH_MODE (1<<5)
|
|
#define SEC_UNICAST_GROUP (1<<6)
|
|
#define SEC_LEVEL (1<<7)
|
|
#define SEC_ENABLED (1<<8)
|
|
#define SEC_ENCRYPT (1<<9)
|
|
|
|
#define SEC_LEVEL_0 0 /* None */
|
|
#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
|
|
#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
|
|
#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
|
|
#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
|
|
|
|
#define SEC_ALG_NONE 0
|
|
#define SEC_ALG_WEP 1
|
|
#define SEC_ALG_TKIP 2
|
|
#define SEC_ALG_CCMP 3
|
|
|
|
#define WEP_KEYS 4
|
|
#define WEP_KEY_LEN 13
|
|
#define SCM_KEY_LEN 32
|
|
#define SCM_TEMPORAL_KEY_LENGTH 16
|
|
|
|
struct ieee80211_security {
|
|
u16 active_key:2,
|
|
enabled:1,
|
|
auth_mode:2, auth_algo:4, unicast_uses_group:1, encrypt:1;
|
|
u8 encode_alg[WEP_KEYS];
|
|
u8 key_sizes[WEP_KEYS];
|
|
u8 keys[WEP_KEYS][SCM_KEY_LEN];
|
|
u8 level;
|
|
u16 flags;
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
|
|
802.11 data frame from AP
|
|
|
|
,-------------------------------------------------------------------.
|
|
Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
|
|
|------|------|---------|---------|---------|------|---------|------|
|
|
Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
|
|
| | tion | (BSSID) | | | ence | data | |
|
|
`-------------------------------------------------------------------'
|
|
|
|
Total: 28-2340 bytes
|
|
|
|
*/
|
|
|
|
#define BEACON_PROBE_SSID_ID_POSITION 12
|
|
|
|
/* Management Frame Information Element Types */
|
|
enum ieee80211_mfie {
|
|
MFIE_TYPE_SSID = 0,
|
|
MFIE_TYPE_RATES = 1,
|
|
MFIE_TYPE_FH_SET = 2,
|
|
MFIE_TYPE_DS_SET = 3,
|
|
MFIE_TYPE_CF_SET = 4,
|
|
MFIE_TYPE_TIM = 5,
|
|
MFIE_TYPE_IBSS_SET = 6,
|
|
MFIE_TYPE_COUNTRY = 7,
|
|
MFIE_TYPE_HOP_PARAMS = 8,
|
|
MFIE_TYPE_HOP_TABLE = 9,
|
|
MFIE_TYPE_REQUEST = 10,
|
|
MFIE_TYPE_CHALLENGE = 16,
|
|
MFIE_TYPE_POWER_CONSTRAINT = 32,
|
|
MFIE_TYPE_POWER_CAPABILITY = 33,
|
|
MFIE_TYPE_TPC_REQUEST = 34,
|
|
MFIE_TYPE_TPC_REPORT = 35,
|
|
MFIE_TYPE_SUPP_CHANNELS = 36,
|
|
MFIE_TYPE_CSA = 37,
|
|
MFIE_TYPE_MEASURE_REQUEST = 38,
|
|
MFIE_TYPE_MEASURE_REPORT = 39,
|
|
MFIE_TYPE_QUIET = 40,
|
|
MFIE_TYPE_IBSS_DFS = 41,
|
|
MFIE_TYPE_ERP_INFO = 42,
|
|
MFIE_TYPE_RSN = 48,
|
|
MFIE_TYPE_RATES_EX = 50,
|
|
MFIE_TYPE_GENERIC = 221,
|
|
MFIE_TYPE_QOS_PARAMETER = 222,
|
|
};
|
|
|
|
/* Minimal header; can be used for passing 802.11 frames with sufficient
|
|
* information to determine what type of underlying data type is actually
|
|
* stored in the data. */
|
|
struct ieee80211_hdr {
|
|
__le16 frame_ctl;
|
|
__le16 duration_id;
|
|
u8 payload[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_hdr_1addr {
|
|
__le16 frame_ctl;
|
|
__le16 duration_id;
|
|
u8 addr1[ETH_ALEN];
|
|
u8 payload[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_hdr_2addr {
|
|
__le16 frame_ctl;
|
|
__le16 duration_id;
|
|
u8 addr1[ETH_ALEN];
|
|
u8 addr2[ETH_ALEN];
|
|
u8 payload[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_hdr_3addr {
|
|
__le16 frame_ctl;
|
|
__le16 duration_id;
|
|
u8 addr1[ETH_ALEN];
|
|
u8 addr2[ETH_ALEN];
|
|
u8 addr3[ETH_ALEN];
|
|
__le16 seq_ctl;
|
|
u8 payload[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_hdr_4addr {
|
|
__le16 frame_ctl;
|
|
__le16 duration_id;
|
|
u8 addr1[ETH_ALEN];
|
|
u8 addr2[ETH_ALEN];
|
|
u8 addr3[ETH_ALEN];
|
|
__le16 seq_ctl;
|
|
u8 addr4[ETH_ALEN];
|
|
u8 payload[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_hdr_3addrqos {
|
|
__le16 frame_ctl;
|
|
__le16 duration_id;
|
|
u8 addr1[ETH_ALEN];
|
|
u8 addr2[ETH_ALEN];
|
|
u8 addr3[ETH_ALEN];
|
|
__le16 seq_ctl;
|
|
u8 payload[0];
|
|
__le16 qos_ctl;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_hdr_4addrqos {
|
|
__le16 frame_ctl;
|
|
__le16 duration_id;
|
|
u8 addr1[ETH_ALEN];
|
|
u8 addr2[ETH_ALEN];
|
|
u8 addr3[ETH_ALEN];
|
|
__le16 seq_ctl;
|
|
u8 addr4[ETH_ALEN];
|
|
u8 payload[0];
|
|
__le16 qos_ctl;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_info_element {
|
|
u8 id;
|
|
u8 len;
|
|
u8 data[0];
|
|
} __attribute__ ((packed));
|
|
|
|
/*
|
|
* These are the data types that can make up management packets
|
|
*
|
|
u16 auth_algorithm;
|
|
u16 auth_sequence;
|
|
u16 beacon_interval;
|
|
u16 capability;
|
|
u8 current_ap[ETH_ALEN];
|
|
u16 listen_interval;
|
|
struct {
|
|
u16 association_id:14, reserved:2;
|
|
} __attribute__ ((packed));
|
|
u32 time_stamp[2];
|
|
u16 reason;
|
|
u16 status;
|
|
*/
|
|
|
|
struct ieee80211_auth {
|
|
struct ieee80211_hdr_3addr header;
|
|
__le16 algorithm;
|
|
__le16 transaction;
|
|
__le16 status;
|
|
/* challenge */
|
|
struct ieee80211_info_element info_element[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_channel_switch {
|
|
u8 id;
|
|
u8 len;
|
|
u8 mode;
|
|
u8 channel;
|
|
u8 count;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_action {
|
|
struct ieee80211_hdr_3addr header;
|
|
u8 category;
|
|
u8 action;
|
|
union {
|
|
struct ieee80211_action_exchange {
|
|
u8 token;
|
|
struct ieee80211_info_element info_element[0];
|
|
} exchange;
|
|
struct ieee80211_channel_switch channel_switch;
|
|
|
|
} format;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_disassoc {
|
|
struct ieee80211_hdr_3addr header;
|
|
__le16 reason;
|
|
} __attribute__ ((packed));
|
|
|
|
/* Alias deauth for disassoc */
|
|
#define ieee80211_deauth ieee80211_disassoc
|
|
|
|
struct ieee80211_probe_request {
|
|
struct ieee80211_hdr_3addr header;
|
|
/* SSID, supported rates */
|
|
struct ieee80211_info_element info_element[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_probe_response {
|
|
struct ieee80211_hdr_3addr header;
|
|
__le32 time_stamp[2];
|
|
__le16 beacon_interval;
|
|
__le16 capability;
|
|
/* SSID, supported rates, FH params, DS params,
|
|
* CF params, IBSS params, TIM (if beacon), RSN */
|
|
struct ieee80211_info_element info_element[0];
|
|
} __attribute__ ((packed));
|
|
|
|
/* Alias beacon for probe_response */
|
|
#define ieee80211_beacon ieee80211_probe_response
|
|
|
|
struct ieee80211_assoc_request {
|
|
struct ieee80211_hdr_3addr header;
|
|
__le16 capability;
|
|
__le16 listen_interval;
|
|
/* SSID, supported rates, RSN */
|
|
struct ieee80211_info_element info_element[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_reassoc_request {
|
|
struct ieee80211_hdr_3addr header;
|
|
__le16 capability;
|
|
__le16 listen_interval;
|
|
u8 current_ap[ETH_ALEN];
|
|
struct ieee80211_info_element info_element[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_assoc_response {
|
|
struct ieee80211_hdr_3addr header;
|
|
__le16 capability;
|
|
__le16 status;
|
|
__le16 aid;
|
|
/* supported rates */
|
|
struct ieee80211_info_element info_element[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_txb {
|
|
u8 nr_frags;
|
|
u8 encrypted;
|
|
u8 rts_included;
|
|
u8 reserved;
|
|
u16 frag_size;
|
|
u16 payload_size;
|
|
struct sk_buff *fragments[0];
|
|
};
|
|
|
|
/* SWEEP TABLE ENTRIES NUMBER */
|
|
#define MAX_SWEEP_TAB_ENTRIES 42
|
|
#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
|
|
/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
|
|
* only use 8, and then use extended rates for the remaining supported
|
|
* rates. Other APs, however, stick all of their supported rates on the
|
|
* main rates information element... */
|
|
#define MAX_RATES_LENGTH ((u8)12)
|
|
#define MAX_RATES_EX_LENGTH ((u8)16)
|
|
#define MAX_NETWORK_COUNT 128
|
|
|
|
#define CRC_LENGTH 4U
|
|
|
|
#define MAX_WPA_IE_LEN 64
|
|
|
|
#define NETWORK_EMPTY_ESSID (1<<0)
|
|
#define NETWORK_HAS_OFDM (1<<1)
|
|
#define NETWORK_HAS_CCK (1<<2)
|
|
|
|
/* QoS structure */
|
|
#define NETWORK_HAS_QOS_PARAMETERS (1<<3)
|
|
#define NETWORK_HAS_QOS_INFORMATION (1<<4)
|
|
#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \
|
|
NETWORK_HAS_QOS_INFORMATION)
|
|
|
|
/* 802.11h */
|
|
#define NETWORK_HAS_POWER_CONSTRAINT (1<<5)
|
|
#define NETWORK_HAS_CSA (1<<6)
|
|
#define NETWORK_HAS_QUIET (1<<7)
|
|
#define NETWORK_HAS_IBSS_DFS (1<<8)
|
|
#define NETWORK_HAS_TPC_REPORT (1<<9)
|
|
|
|
#define NETWORK_HAS_ERP_VALUE (1<<10)
|
|
|
|
#define QOS_QUEUE_NUM 4
|
|
#define QOS_OUI_LEN 3
|
|
#define QOS_OUI_TYPE 2
|
|
#define QOS_ELEMENT_ID 221
|
|
#define QOS_OUI_INFO_SUB_TYPE 0
|
|
#define QOS_OUI_PARAM_SUB_TYPE 1
|
|
#define QOS_VERSION_1 1
|
|
#define QOS_AIFSN_MIN_VALUE 2
|
|
|
|
struct ieee80211_qos_information_element {
|
|
u8 elementID;
|
|
u8 length;
|
|
u8 qui[QOS_OUI_LEN];
|
|
u8 qui_type;
|
|
u8 qui_subtype;
|
|
u8 version;
|
|
u8 ac_info;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_qos_ac_parameter {
|
|
u8 aci_aifsn;
|
|
u8 ecw_min_max;
|
|
__le16 tx_op_limit;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_qos_parameter_info {
|
|
struct ieee80211_qos_information_element info_element;
|
|
u8 reserved;
|
|
struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_qos_parameters {
|
|
__le16 cw_min[QOS_QUEUE_NUM];
|
|
__le16 cw_max[QOS_QUEUE_NUM];
|
|
u8 aifs[QOS_QUEUE_NUM];
|
|
u8 flag[QOS_QUEUE_NUM];
|
|
__le16 tx_op_limit[QOS_QUEUE_NUM];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_qos_data {
|
|
struct ieee80211_qos_parameters parameters;
|
|
int active;
|
|
int supported;
|
|
u8 param_count;
|
|
u8 old_param_count;
|
|
};
|
|
|
|
struct ieee80211_tim_parameters {
|
|
u8 tim_count;
|
|
u8 tim_period;
|
|
} __attribute__ ((packed));
|
|
|
|
/*******************************************************/
|
|
|
|
enum { /* ieee80211_basic_report.map */
|
|
IEEE80211_BASIC_MAP_BSS = (1 << 0),
|
|
IEEE80211_BASIC_MAP_OFDM = (1 << 1),
|
|
IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2),
|
|
IEEE80211_BASIC_MAP_RADAR = (1 << 3),
|
|
IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4),
|
|
/* Bits 5-7 are reserved */
|
|
|
|
};
|
|
struct ieee80211_basic_report {
|
|
u8 channel;
|
|
__le64 start_time;
|
|
__le16 duration;
|
|
u8 map;
|
|
} __attribute__ ((packed));
|
|
|
|
enum { /* ieee80211_measurement_request.mode */
|
|
/* Bit 0 is reserved */
|
|
IEEE80211_MEASUREMENT_ENABLE = (1 << 1),
|
|
IEEE80211_MEASUREMENT_REQUEST = (1 << 2),
|
|
IEEE80211_MEASUREMENT_REPORT = (1 << 3),
|
|
/* Bits 4-7 are reserved */
|
|
};
|
|
|
|
enum {
|
|
IEEE80211_REPORT_BASIC = 0, /* required */
|
|
IEEE80211_REPORT_CCA = 1, /* optional */
|
|
IEEE80211_REPORT_RPI = 2, /* optional */
|
|
/* 3-255 reserved */
|
|
};
|
|
|
|
struct ieee80211_measurement_params {
|
|
u8 channel;
|
|
__le64 start_time;
|
|
__le16 duration;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_measurement_request {
|
|
struct ieee80211_info_element ie;
|
|
u8 token;
|
|
u8 mode;
|
|
u8 type;
|
|
struct ieee80211_measurement_params params[0];
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_measurement_report {
|
|
struct ieee80211_info_element ie;
|
|
u8 token;
|
|
u8 mode;
|
|
u8 type;
|
|
union {
|
|
struct ieee80211_basic_report basic[0];
|
|
} u;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_tpc_report {
|
|
u8 transmit_power;
|
|
u8 link_margin;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_channel_map {
|
|
u8 channel;
|
|
u8 map;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_ibss_dfs {
|
|
struct ieee80211_info_element ie;
|
|
u8 owner[ETH_ALEN];
|
|
u8 recovery_interval;
|
|
struct ieee80211_channel_map channel_map[0];
|
|
};
|
|
|
|
struct ieee80211_csa {
|
|
u8 mode;
|
|
u8 channel;
|
|
u8 count;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_quiet {
|
|
u8 count;
|
|
u8 period;
|
|
u8 duration;
|
|
u8 offset;
|
|
} __attribute__ ((packed));
|
|
|
|
struct ieee80211_network {
|
|
/* These entries are used to identify a unique network */
|
|
u8 bssid[ETH_ALEN];
|
|
u8 channel;
|
|
/* Ensure null-terminated for any debug msgs */
|
|
u8 ssid[IW_ESSID_MAX_SIZE + 1];
|
|
u8 ssid_len;
|
|
|
|
struct ieee80211_qos_data qos_data;
|
|
|
|
/* These are network statistics */
|
|
struct ieee80211_rx_stats stats;
|
|
u16 capability;
|
|
u8 rates[MAX_RATES_LENGTH];
|
|
u8 rates_len;
|
|
u8 rates_ex[MAX_RATES_EX_LENGTH];
|
|
u8 rates_ex_len;
|
|
unsigned long last_scanned;
|
|
u8 mode;
|
|
u32 flags;
|
|
u32 last_associate;
|
|
u32 time_stamp[2];
|
|
u16 beacon_interval;
|
|
u16 listen_interval;
|
|
u16 atim_window;
|
|
u8 erp_value;
|
|
u8 wpa_ie[MAX_WPA_IE_LEN];
|
|
size_t wpa_ie_len;
|
|
u8 rsn_ie[MAX_WPA_IE_LEN];
|
|
size_t rsn_ie_len;
|
|
struct ieee80211_tim_parameters tim;
|
|
|
|
/* 802.11h info */
|
|
|
|
/* Power Constraint - mandatory if spctrm mgmt required */
|
|
u8 power_constraint;
|
|
|
|
/* TPC Report - mandatory if spctrm mgmt required */
|
|
struct ieee80211_tpc_report tpc_report;
|
|
|
|
/* IBSS DFS - mandatory if spctrm mgmt required and IBSS
|
|
* NOTE: This is variable length and so must be allocated dynamically */
|
|
struct ieee80211_ibss_dfs *ibss_dfs;
|
|
|
|
/* Channel Switch Announcement - optional if spctrm mgmt required */
|
|
struct ieee80211_csa csa;
|
|
|
|
/* Quiet - optional if spctrm mgmt required */
|
|
struct ieee80211_quiet quiet;
|
|
|
|
struct list_head list;
|
|
};
|
|
|
|
enum ieee80211_state {
|
|
IEEE80211_UNINITIALIZED = 0,
|
|
IEEE80211_INITIALIZED,
|
|
IEEE80211_ASSOCIATING,
|
|
IEEE80211_ASSOCIATED,
|
|
IEEE80211_AUTHENTICATING,
|
|
IEEE80211_AUTHENTICATED,
|
|
IEEE80211_SHUTDOWN
|
|
};
|
|
|
|
#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
|
|
#define DEFAULT_FTS 2346
|
|
|
|
#define CFG_IEEE80211_RESERVE_FCS (1<<0)
|
|
#define CFG_IEEE80211_COMPUTE_FCS (1<<1)
|
|
#define CFG_IEEE80211_RTS (1<<2)
|
|
|
|
#define IEEE80211_24GHZ_MIN_CHANNEL 1
|
|
#define IEEE80211_24GHZ_MAX_CHANNEL 14
|
|
#define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \
|
|
IEEE80211_24GHZ_MIN_CHANNEL + 1)
|
|
|
|
#define IEEE80211_52GHZ_MIN_CHANNEL 34
|
|
#define IEEE80211_52GHZ_MAX_CHANNEL 165
|
|
#define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \
|
|
IEEE80211_52GHZ_MIN_CHANNEL + 1)
|
|
|
|
enum {
|
|
IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
|
|
IEEE80211_CH_80211H_RULES = (1 << 1),
|
|
IEEE80211_CH_B_ONLY = (1 << 2),
|
|
IEEE80211_CH_NO_IBSS = (1 << 3),
|
|
IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
|
|
IEEE80211_CH_RADAR_DETECT = (1 << 5),
|
|
IEEE80211_CH_INVALID = (1 << 6),
|
|
};
|
|
|
|
struct ieee80211_channel {
|
|
u32 freq; /* in MHz */
|
|
u8 channel;
|
|
u8 flags;
|
|
u8 max_power; /* in dBm */
|
|
};
|
|
|
|
struct ieee80211_geo {
|
|
u8 name[4];
|
|
u8 bg_channels;
|
|
u8 a_channels;
|
|
struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
|
|
struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
|
|
};
|
|
|
|
struct ieee80211_device {
|
|
struct net_device *dev;
|
|
struct ieee80211_security sec;
|
|
|
|
/* Bookkeeping structures */
|
|
struct net_device_stats stats;
|
|
struct ieee80211_stats ieee_stats;
|
|
|
|
struct ieee80211_geo geo;
|
|
|
|
/* Probe / Beacon management */
|
|
struct list_head network_free_list;
|
|
struct list_head network_list;
|
|
struct ieee80211_network *networks;
|
|
int scans;
|
|
int scan_age;
|
|
|
|
int iw_mode; /* operating mode (IW_MODE_*) */
|
|
struct iw_spy_data spy_data; /* iwspy support */
|
|
|
|
spinlock_t lock;
|
|
|
|
int tx_headroom; /* Set to size of any additional room needed at front
|
|
* of allocated Tx SKBs */
|
|
u32 config;
|
|
|
|
/* WEP and other encryption related settings at the device level */
|
|
int open_wep; /* Set to 1 to allow unencrypted frames */
|
|
|
|
int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
|
|
* WEP key changes */
|
|
|
|
/* If the host performs {en,de}cryption, then set to 1 */
|
|
int host_encrypt;
|
|
int host_encrypt_msdu;
|
|
int host_decrypt;
|
|
/* host performs multicast decryption */
|
|
int host_mc_decrypt;
|
|
|
|
/* host should strip IV and ICV from protected frames */
|
|
/* meaningful only when hardware decryption is being used */
|
|
int host_strip_iv_icv;
|
|
|
|
int host_open_frag;
|
|
int host_build_iv;
|
|
int ieee802_1x; /* is IEEE 802.1X used */
|
|
|
|
/* WPA data */
|
|
int wpa_enabled;
|
|
int drop_unencrypted;
|
|
int privacy_invoked;
|
|
size_t wpa_ie_len;
|
|
u8 *wpa_ie;
|
|
|
|
struct list_head crypt_deinit_list;
|
|
struct ieee80211_crypt_data *crypt[WEP_KEYS];
|
|
int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
|
|
struct timer_list crypt_deinit_timer;
|
|
int crypt_quiesced;
|
|
|
|
int bcrx_sta_key; /* use individual keys to override default keys even
|
|
* with RX of broad/multicast frames */
|
|
|
|
/* Fragmentation structures */
|
|
struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
|
|
unsigned int frag_next_idx;
|
|
u16 fts; /* Fragmentation Threshold */
|
|
u16 rts; /* RTS threshold */
|
|
|
|
/* Association info */
|
|
u8 bssid[ETH_ALEN];
|
|
|
|
enum ieee80211_state state;
|
|
|
|
int mode; /* A, B, G */
|
|
int modulation; /* CCK, OFDM */
|
|
int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
|
|
int abg_true; /* ABG flag */
|
|
|
|
int perfect_rssi;
|
|
int worst_rssi;
|
|
|
|
u16 prev_seq_ctl; /* used to drop duplicate frames */
|
|
|
|
/* Callback functions */
|
|
void (*set_security) (struct net_device * dev,
|
|
struct ieee80211_security * sec);
|
|
int (*hard_start_xmit) (struct ieee80211_txb * txb,
|
|
struct net_device * dev, int pri);
|
|
int (*reset_port) (struct net_device * dev);
|
|
int (*is_queue_full) (struct net_device * dev, int pri);
|
|
|
|
int (*handle_management) (struct net_device * dev,
|
|
struct ieee80211_network * network, u16 type);
|
|
int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
|
|
|
|
/* Typical STA methods */
|
|
int (*handle_auth) (struct net_device * dev,
|
|
struct ieee80211_auth * auth);
|
|
int (*handle_deauth) (struct net_device * dev,
|
|
struct ieee80211_deauth * auth);
|
|
int (*handle_action) (struct net_device * dev,
|
|
struct ieee80211_action * action,
|
|
struct ieee80211_rx_stats * stats);
|
|
int (*handle_disassoc) (struct net_device * dev,
|
|
struct ieee80211_disassoc * assoc);
|
|
int (*handle_beacon) (struct net_device * dev,
|
|
struct ieee80211_beacon * beacon,
|
|
struct ieee80211_network * network);
|
|
int (*handle_probe_response) (struct net_device * dev,
|
|
struct ieee80211_probe_response * resp,
|
|
struct ieee80211_network * network);
|
|
int (*handle_probe_request) (struct net_device * dev,
|
|
struct ieee80211_probe_request * req,
|
|
struct ieee80211_rx_stats * stats);
|
|
int (*handle_assoc_response) (struct net_device * dev,
|
|
struct ieee80211_assoc_response * resp,
|
|
struct ieee80211_network * network);
|
|
|
|
/* Typical AP methods */
|
|
int (*handle_assoc_request) (struct net_device * dev);
|
|
int (*handle_reassoc_request) (struct net_device * dev,
|
|
struct ieee80211_reassoc_request * req);
|
|
|
|
/* This must be the last item so that it points to the data
|
|
* allocated beyond this structure by alloc_ieee80211 */
|
|
u8 priv[0];
|
|
};
|
|
|
|
#define IEEE_A (1<<0)
|
|
#define IEEE_B (1<<1)
|
|
#define IEEE_G (1<<2)
|
|
#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
|
|
|
|
static inline void *ieee80211_priv(struct net_device *dev)
|
|
{
|
|
return ((struct ieee80211_device *)netdev_priv(dev))->priv;
|
|
}
|
|
|
|
static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
|
|
{
|
|
/* Single white space is for Linksys APs */
|
|
if (essid_len == 1 && essid[0] == ' ')
|
|
return 1;
|
|
|
|
/* Otherwise, if the entire essid is 0, we assume it is hidden */
|
|
while (essid_len) {
|
|
essid_len--;
|
|
if (essid[essid_len] != '\0')
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
|
|
int mode)
|
|
{
|
|
/*
|
|
* It is possible for both access points and our device to support
|
|
* combinations of modes, so as long as there is one valid combination
|
|
* of ap/device supported modes, then return success
|
|
*
|
|
*/
|
|
if ((mode & IEEE_A) &&
|
|
(ieee->modulation & IEEE80211_OFDM_MODULATION) &&
|
|
(ieee->freq_band & IEEE80211_52GHZ_BAND))
|
|
return 1;
|
|
|
|
if ((mode & IEEE_G) &&
|
|
(ieee->modulation & IEEE80211_OFDM_MODULATION) &&
|
|
(ieee->freq_band & IEEE80211_24GHZ_BAND))
|
|
return 1;
|
|
|
|
if ((mode & IEEE_B) &&
|
|
(ieee->modulation & IEEE80211_CCK_MODULATION) &&
|
|
(ieee->freq_band & IEEE80211_24GHZ_BAND))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int ieee80211_get_hdrlen(u16 fc)
|
|
{
|
|
int hdrlen = IEEE80211_3ADDR_LEN;
|
|
u16 stype = WLAN_FC_GET_STYPE(fc);
|
|
|
|
switch (WLAN_FC_GET_TYPE(fc)) {
|
|
case IEEE80211_FTYPE_DATA:
|
|
if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
|
|
hdrlen = IEEE80211_4ADDR_LEN;
|
|
if (stype & IEEE80211_STYPE_QOS_DATA)
|
|
hdrlen += 2;
|
|
break;
|
|
case IEEE80211_FTYPE_CTL:
|
|
switch (WLAN_FC_GET_STYPE(fc)) {
|
|
case IEEE80211_STYPE_CTS:
|
|
case IEEE80211_STYPE_ACK:
|
|
hdrlen = IEEE80211_1ADDR_LEN;
|
|
break;
|
|
default:
|
|
hdrlen = IEEE80211_2ADDR_LEN;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return hdrlen;
|
|
}
|
|
|
|
static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
|
|
{
|
|
switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) {
|
|
case IEEE80211_1ADDR_LEN:
|
|
return ((struct ieee80211_hdr_1addr *)hdr)->payload;
|
|
case IEEE80211_2ADDR_LEN:
|
|
return ((struct ieee80211_hdr_2addr *)hdr)->payload;
|
|
case IEEE80211_3ADDR_LEN:
|
|
return ((struct ieee80211_hdr_3addr *)hdr)->payload;
|
|
case IEEE80211_4ADDR_LEN:
|
|
return ((struct ieee80211_hdr_4addr *)hdr)->payload;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static inline int ieee80211_is_ofdm_rate(u8 rate)
|
|
{
|
|
switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
|
|
case IEEE80211_OFDM_RATE_6MB:
|
|
case IEEE80211_OFDM_RATE_9MB:
|
|
case IEEE80211_OFDM_RATE_12MB:
|
|
case IEEE80211_OFDM_RATE_18MB:
|
|
case IEEE80211_OFDM_RATE_24MB:
|
|
case IEEE80211_OFDM_RATE_36MB:
|
|
case IEEE80211_OFDM_RATE_48MB:
|
|
case IEEE80211_OFDM_RATE_54MB:
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline int ieee80211_is_cck_rate(u8 rate)
|
|
{
|
|
switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
|
|
case IEEE80211_CCK_RATE_1MB:
|
|
case IEEE80211_CCK_RATE_2MB:
|
|
case IEEE80211_CCK_RATE_5MB:
|
|
case IEEE80211_CCK_RATE_11MB:
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* ieee80211.c */
|
|
extern void free_ieee80211(struct net_device *dev);
|
|
extern struct net_device *alloc_ieee80211(int sizeof_priv);
|
|
|
|
extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
|
|
|
|
/* ieee80211_tx.c */
|
|
extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
|
|
extern void ieee80211_txb_free(struct ieee80211_txb *);
|
|
|
|
/* ieee80211_rx.c */
|
|
extern void ieee80211_rx_any(struct ieee80211_device *ieee,
|
|
struct sk_buff *skb, struct ieee80211_rx_stats *stats);
|
|
extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
|
|
struct ieee80211_rx_stats *rx_stats);
|
|
/* make sure to set stats->len */
|
|
extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
|
|
struct ieee80211_hdr_4addr *header,
|
|
struct ieee80211_rx_stats *stats);
|
|
extern void ieee80211_network_reset(struct ieee80211_network *network);
|
|
|
|
/* ieee80211_geo.c */
|
|
extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
|
|
*ieee);
|
|
extern int ieee80211_set_geo(struct ieee80211_device *ieee,
|
|
const struct ieee80211_geo *geo);
|
|
|
|
extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
|
|
u8 channel);
|
|
extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
|
|
u8 channel);
|
|
extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
|
|
extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee,
|
|
u8 channel);
|
|
extern const struct ieee80211_channel *ieee80211_get_channel(struct
|
|
ieee80211_device
|
|
*ieee, u8 channel);
|
|
extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee,
|
|
u8 channel);
|
|
|
|
/* ieee80211_wx.c */
|
|
extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
|
|
struct iw_request_info *info,
|
|
union iwreq_data *wrqu, char *key);
|
|
extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
|
|
struct iw_request_info *info,
|
|
union iwreq_data *wrqu, char *key);
|
|
extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
|
|
struct iw_request_info *info,
|
|
union iwreq_data *wrqu, char *key);
|
|
extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
|
|
struct iw_request_info *info,
|
|
union iwreq_data *wrqu, char *extra);
|
|
extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
|
|
struct iw_request_info *info,
|
|
union iwreq_data *wrqu, char *extra);
|
|
|
|
static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
|
|
{
|
|
ieee->scans++;
|
|
}
|
|
|
|
static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
|
|
{
|
|
return ieee->scans;
|
|
}
|
|
|
|
#endif /* IEEE80211_H */
|