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/*
* Merged with mainline ieee80211 . h in Aug 2004. Original ieee802_11
* remains copyright by the original authors
*
* Portions of the merged code are based on Host AP ( software wireless
* LAN access point ) driver for Intersil Prism2 / 2.5 / 3.
*
* Copyright ( c ) 2001 - 2002 , SSH Communications Security Corp and Jouni Malinen
* < jkmaline @ cc . hut . fi >
* Copyright ( c ) 2002 - 2003 , Jouni Malinen < jkmaline @ cc . hut . fi >
*
* Adaption to a generic IEEE 802.11 stack by James Ketrenos
* < jketreno @ linux . intel . com >
* Copyright ( c ) 2004 , Intel Corporation
*
* This program is free software ; you can redistribute it and / or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation . See README and COPYING for
* more details .
*/
# ifndef IEEE80211_H
# define IEEE80211_H
# include <linux/if_ether.h> /* ETH_ALEN */
# include <linux/kernel.h> /* ARRAY_SIZE */
# if WIRELESS_EXT < 17
# define IW_QUAL_QUAL_INVALID 0x10
# define IW_QUAL_LEVEL_INVALID 0x20
# define IW_QUAL_NOISE_INVALID 0x40
# define IW_QUAL_QUAL_UPDATED 0x1
# define IW_QUAL_LEVEL_UPDATED 0x2
# define IW_QUAL_NOISE_UPDATED 0x4
# endif
# define IEEE80211_DATA_LEN 2304
/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
6.2 .1 .1 .2 .
The figure in section 7.1 .2 suggests a body size of up to 2312
bytes is allowed , which is a bit confusing , I suspect this
represents the 2304 bytes of real data , plus a possible 8 bytes of
WEP IV and ICV . ( this interpretation suggested by Ramiro Barreiro ) */
# define IEEE80211_HLEN 30
# define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
struct ieee80211_hdr {
u16 frame_ctl ;
u16 duration_id ;
u8 addr1 [ ETH_ALEN ] ;
u8 addr2 [ ETH_ALEN ] ;
u8 addr3 [ ETH_ALEN ] ;
u16 seq_ctl ;
u8 addr4 [ ETH_ALEN ] ;
} __attribute__ ( ( packed ) ) ;
struct ieee80211_hdr_3addr {
u16 frame_ctl ;
u16 duration_id ;
u8 addr1 [ ETH_ALEN ] ;
u8 addr2 [ ETH_ALEN ] ;
u8 addr3 [ ETH_ALEN ] ;
u16 seq_ctl ;
} __attribute__ ( ( packed ) ) ;
enum eap_type {
EAP_PACKET = 0 ,
EAPOL_START ,
EAPOL_LOGOFF ,
EAPOL_KEY ,
EAPOL_ENCAP_ASF_ALERT
} ;
static const char * eap_types [ ] = {
[ EAP_PACKET ] = " EAP-Packet " ,
[ EAPOL_START ] = " EAPOL-Start " ,
[ EAPOL_LOGOFF ] = " EAPOL-Logoff " ,
[ EAPOL_KEY ] = " EAPOL-Key " ,
[ EAPOL_ENCAP_ASF_ALERT ] = " EAPOL-Encap-ASF-Alert "
} ;
static inline const char * eap_get_type ( int type )
{
return ( type > = ARRAY_SIZE ( eap_types ) ) ? " Unknown " : eap_types [ type ] ;
}
struct eapol {
u8 snap [ 6 ] ;
u16 ethertype ;
u8 version ;
u8 type ;
u16 length ;
} __attribute__ ( ( packed ) ) ;
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# define IEEE80211_1ADDR_LEN 10
# define IEEE80211_2ADDR_LEN 16
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# define IEEE80211_3ADDR_LEN 24
# define IEEE80211_4ADDR_LEN 30
# define IEEE80211_FCS_LEN 4
# define MIN_FRAG_THRESHOLD 256U
# define MAX_FRAG_THRESHOLD 2346U
/* Frame control field constants */
# define IEEE80211_FCTL_VERS 0x0002
# define IEEE80211_FCTL_FTYPE 0x000c
# define IEEE80211_FCTL_STYPE 0x00f0
# define IEEE80211_FCTL_TODS 0x0100
# define IEEE80211_FCTL_FROMDS 0x0200
# define IEEE80211_FCTL_MOREFRAGS 0x0400
# define IEEE80211_FCTL_RETRY 0x0800
# define IEEE80211_FCTL_PM 0x1000
# define IEEE80211_FCTL_MOREDATA 0x2000
# define IEEE80211_FCTL_WEP 0x4000
# define IEEE80211_FCTL_ORDER 0x8000
# define IEEE80211_FTYPE_MGMT 0x0000
# define IEEE80211_FTYPE_CTL 0x0004
# define IEEE80211_FTYPE_DATA 0x0008
/* management */
# define IEEE80211_STYPE_ASSOC_REQ 0x0000
# define IEEE80211_STYPE_ASSOC_RESP 0x0010
# define IEEE80211_STYPE_REASSOC_REQ 0x0020
# define IEEE80211_STYPE_REASSOC_RESP 0x0030
# define IEEE80211_STYPE_PROBE_REQ 0x0040
# define IEEE80211_STYPE_PROBE_RESP 0x0050
# define IEEE80211_STYPE_BEACON 0x0080
# define IEEE80211_STYPE_ATIM 0x0090
# define IEEE80211_STYPE_DISASSOC 0x00A0
# define IEEE80211_STYPE_AUTH 0x00B0
# define IEEE80211_STYPE_DEAUTH 0x00C0
/* control */
# define IEEE80211_STYPE_PSPOLL 0x00A0
# define IEEE80211_STYPE_RTS 0x00B0
# define IEEE80211_STYPE_CTS 0x00C0
# define IEEE80211_STYPE_ACK 0x00D0
# define IEEE80211_STYPE_CFEND 0x00E0
# define IEEE80211_STYPE_CFENDACK 0x00F0
/* data */
# define IEEE80211_STYPE_DATA 0x0000
# define IEEE80211_STYPE_DATA_CFACK 0x0010
# define IEEE80211_STYPE_DATA_CFPOLL 0x0020
# define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
# define IEEE80211_STYPE_NULLFUNC 0x0040
# define IEEE80211_STYPE_CFACK 0x0050
# define IEEE80211_STYPE_CFPOLL 0x0060
# define IEEE80211_STYPE_CFACKPOLL 0x0070
# define IEEE80211_SCTL_FRAG 0x000F
# define IEEE80211_SCTL_SEQ 0xFFF0
/* debug macros */
# ifdef CONFIG_IEEE80211_DEBUG
extern u32 ieee80211_debug_level ;
# define IEEE80211_DEBUG(level, fmt, args...) \
do { if ( ieee80211_debug_level & ( level ) ) \
printk ( KERN_DEBUG " ieee80211: %c %s " fmt , \
in_interrupt ( ) ? ' I ' : ' U ' , __FUNCTION__ , # # args ) ; } while ( 0 )
# else
# define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
# endif /* CONFIG_IEEE80211_DEBUG */
/*
* To use the debug system ;
*
* If you are defining a new debug classification , simply add it to the # define
* list here in the form of :
*
* # define IEEE80211_DL_xxxx VALUE
*
* shifting value to the left one bit from the previous entry . xxxx should be
* the name of the classification ( for example , WEP )
*
* You then need to either add a IEEE80211_xxxx_DEBUG ( ) macro definition for your
* classification , or use IEEE80211_DEBUG ( IEEE80211_DL_xxxx , . . . ) whenever you want
* to send output to that classification .
*
* To add your debug level to the list of levels seen when you perform
*
* % cat / proc / net / ipw / debug_level
*
* you simply need to add your entry to the ipw_debug_levels array .
*
* If you do not see debug_level in / proc / net / ipw then you do not have
* CONFIG_IEEE80211_DEBUG defined in your kernel configuration
*
*/
# define IEEE80211_DL_INFO (1<<0)
# define IEEE80211_DL_WX (1<<1)
# define IEEE80211_DL_SCAN (1<<2)
# define IEEE80211_DL_STATE (1<<3)
# define IEEE80211_DL_MGMT (1<<4)
# define IEEE80211_DL_FRAG (1<<5)
# define IEEE80211_DL_EAP (1<<6)
# define IEEE80211_DL_DROP (1<<7)
# define IEEE80211_DL_TX (1<<8)
# define IEEE80211_DL_RX (1<<9)
# define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
# define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
# define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
# define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
# define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
# define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
# define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
# define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
# define IEEE80211_DEBUG_EAP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_EAP, f, ## a)
# define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
# define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
# define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
# include <linux/netdevice.h>
# include <linux/wireless.h>
# include <linux/if_arp.h> /* ARPHRD_ETHER */
# ifndef WIRELESS_SPY
# define WIRELESS_SPY // enable iwspy support
# endif
# include <net/iw_handler.h> // new driver API
# ifndef ETH_P_PAE
# define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
# endif /* ETH_P_PAE */
# define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
# ifndef ETH_P_80211_RAW
# define ETH_P_80211_RAW (ETH_P_ECONET + 1)
# endif
/* IEEE 802.11 defines */
# define P80211_OUI_LEN 3
struct ieee80211_snap_hdr {
u8 dsap ; /* always 0xAA */
u8 ssap ; /* always 0xAA */
u8 ctrl ; /* always 0x03 */
u8 oui [ P80211_OUI_LEN ] ; /* organizational universal id */
} __attribute__ ( ( packed ) ) ;
# define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
# define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
# define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
# define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
# define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
/* Authentication algorithms */
# define WLAN_AUTH_OPEN 0
# define WLAN_AUTH_SHARED_KEY 1
# define WLAN_AUTH_CHALLENGE_LEN 128
# define WLAN_CAPABILITY_BSS (1<<0)
# define WLAN_CAPABILITY_IBSS (1<<1)
# define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
# define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
# define WLAN_CAPABILITY_PRIVACY (1<<4)
# define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
# define WLAN_CAPABILITY_PBCC (1<<6)
# define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
/* Status codes */
# define WLAN_STATUS_SUCCESS 0
# define WLAN_STATUS_UNSPECIFIED_FAILURE 1
# define WLAN_STATUS_CAPS_UNSUPPORTED 10
# define WLAN_STATUS_REASSOC_NO_ASSOC 11
# define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12
# define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13
# define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14
# define WLAN_STATUS_CHALLENGE_FAIL 15
# define WLAN_STATUS_AUTH_TIMEOUT 16
# define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17
# define WLAN_STATUS_ASSOC_DENIED_RATES 18
/* 802.11b */
# define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19
# define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20
# define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21
/* Reason codes */
# define WLAN_REASON_UNSPECIFIED 1
# define WLAN_REASON_PREV_AUTH_NOT_VALID 2
# define WLAN_REASON_DEAUTH_LEAVING 3
# define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4
# define WLAN_REASON_DISASSOC_AP_BUSY 5
# define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6
# define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7
# define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8
# define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
# define IEEE80211_STATMASK_SIGNAL (1<<0)
# define IEEE80211_STATMASK_RSSI (1<<1)
# define IEEE80211_STATMASK_NOISE (1<<2)
# define IEEE80211_STATMASK_RATE (1<<3)
# define IEEE80211_STATMASK_WEMASK 0x7
# define IEEE80211_CCK_MODULATION (1<<0)
# define IEEE80211_OFDM_MODULATION (1<<1)
# define IEEE80211_24GHZ_BAND (1<<0)
# define IEEE80211_52GHZ_BAND (1<<1)
# define IEEE80211_CCK_RATE_1MB 0x02
# define IEEE80211_CCK_RATE_2MB 0x04
# define IEEE80211_CCK_RATE_5MB 0x0B
# define IEEE80211_CCK_RATE_11MB 0x16
# define IEEE80211_OFDM_RATE_6MB 0x0C
# define IEEE80211_OFDM_RATE_9MB 0x12
# define IEEE80211_OFDM_RATE_12MB 0x18
# define IEEE80211_OFDM_RATE_18MB 0x24
# define IEEE80211_OFDM_RATE_24MB 0x30
# define IEEE80211_OFDM_RATE_36MB 0x48
# define IEEE80211_OFDM_RATE_48MB 0x60
# define IEEE80211_OFDM_RATE_54MB 0x6C
# define IEEE80211_BASIC_RATE_MASK 0x80
# define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
# define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
# define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
# define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
# define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
# define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
# define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
# define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
# define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
# define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
# define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
# define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
# define IEEE80211_CCK_RATES_MASK 0x0000000F
# define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
IEEE80211_CCK_RATE_2MB_MASK )
# define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
IEEE80211_CCK_RATE_5MB_MASK | \
IEEE80211_CCK_RATE_11MB_MASK )
# define IEEE80211_OFDM_RATES_MASK 0x00000FF0
# define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
IEEE80211_OFDM_RATE_12MB_MASK | \
IEEE80211_OFDM_RATE_24MB_MASK )
# define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
IEEE80211_OFDM_RATE_9MB_MASK | \
IEEE80211_OFDM_RATE_18MB_MASK | \
IEEE80211_OFDM_RATE_36MB_MASK | \
IEEE80211_OFDM_RATE_48MB_MASK | \
IEEE80211_OFDM_RATE_54MB_MASK )
# define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
IEEE80211_CCK_DEFAULT_RATES_MASK )
# define IEEE80211_NUM_OFDM_RATES 8
# define IEEE80211_NUM_CCK_RATES 4
# define IEEE80211_OFDM_SHIFT_MASK_A 4
/* NOTE: This data is for statistical purposes; not all hardware provides this
* information for frames received . Not setting these will not cause
* any adverse affects . */
struct ieee80211_rx_stats {
u32 mac_time ;
s8 rssi ;
u8 signal ;
u8 noise ;
u16 rate ; /* in 100 kbps */
u8 received_channel ;
u8 control ;
u8 mask ;
u8 freq ;
u16 len ;
} ;
/* IEEE 802.11 requires that STA supports concurrent reception of at least
* 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 ;
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#if 0 /* for later */
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# include "ieee80211_crypt.h"
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# endif
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# 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_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 WEP_KEYS 4
# define WEP_KEY_LEN 13
struct ieee80211_security {
u16 active_key : 2 ,
enabled : 1 ,
auth_mode : 2 ,
auth_algo : 4 ,
unicast_uses_group : 1 ;
u8 key_sizes [ WEP_KEYS ] ;
u8 keys [ WEP_KEYS ] [ WEP_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 */
# define MFIE_TYPE_SSID 0
# define MFIE_TYPE_RATES 1
# define MFIE_TYPE_FH_SET 2
# define MFIE_TYPE_DS_SET 3
# define MFIE_TYPE_CF_SET 4
# define MFIE_TYPE_TIM 5
# define MFIE_TYPE_IBSS_SET 6
# define MFIE_TYPE_CHALLENGE 16
# define MFIE_TYPE_RSN 48
# define MFIE_TYPE_RATES_EX 50
# define MFIE_TYPE_GENERIC 221
struct ieee80211_info_element_hdr {
u8 id ;
u8 len ;
} __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_authentication {
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struct ieee80211_hdr_3addr header ;
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u16 algorithm ;
u16 transaction ;
u16 status ;
struct ieee80211_info_element info_element ;
} __attribute__ ( ( packed ) ) ;
struct ieee80211_probe_response {
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struct ieee80211_hdr_3addr header ;
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u32 time_stamp [ 2 ] ;
u16 beacon_interval ;
u16 capability ;
struct ieee80211_info_element info_element ;
} __attribute__ ( ( packed ) ) ;
struct ieee80211_assoc_request_frame {
u16 capability ;
u16 listen_interval ;
u8 current_ap [ ETH_ALEN ] ;
struct ieee80211_info_element info_element ;
} __attribute__ ( ( packed ) ) ;
struct ieee80211_assoc_response_frame {
struct ieee80211_hdr_3addr header ;
u16 capability ;
u16 status ;
u16 aid ;
struct ieee80211_info_element info_element ; /* supported rates */
} __attribute__ ( ( packed ) ) ;
struct ieee80211_txb {
u8 nr_frags ;
u8 encrypted ;
u16 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)
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 ;
/* 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 ;
u8 flags ;
u32 last_associate ;
u32 time_stamp [ 2 ] ;
u16 beacon_interval ;
u16 listen_interval ;
u16 atim_window ;
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 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 MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
# define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
# define CFG_IEEE80211_RESERVE_FCS (1<<0)
# define CFG_IEEE80211_COMPUTE_FCS (1<<1)
struct ieee80211_device {
struct net_device * dev ;
/* Bookkeeping structures */
struct net_device_stats stats ;
struct ieee80211_stats ieee_stats ;
/* 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_*) */
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_decrypt ;
int ieee802_1x ; /* is IEEE 802.1X used */
/* WPA data */
int wpa_enabled ;
int drop_unencrypted ;
int tkip_countermeasures ;
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 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 */
/* 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_ture ; /* ABG flag */
/* 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 ( * reset_port ) ( struct net_device * dev ) ;
/* 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)
extern inline void * ieee80211_priv ( struct net_device * dev )
{
return ( ( struct ieee80211_device * ) netdev_priv ( dev ) ) - > priv ;
}
extern 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 ;
}
extern 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 ;
}
extern inline int ieee80211_get_hdrlen ( u16 fc )
{
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int hdrlen = IEEE80211_3ADDR_LEN ;
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switch ( WLAN_FC_GET_TYPE ( fc ) ) {
case IEEE80211_FTYPE_DATA :
if ( ( fc & IEEE80211_FCTL_FROMDS ) & & ( fc & IEEE80211_FCTL_TODS ) )
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hdrlen = IEEE80211_4ADDR_LEN ;
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break ;
case IEEE80211_FTYPE_CTL :
switch ( WLAN_FC_GET_STYPE ( fc ) ) {
case IEEE80211_STYPE_CTS :
case IEEE80211_STYPE_ACK :
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hdrlen = IEEE80211_1ADDR_LEN ;
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break ;
default :
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hdrlen = IEEE80211_2ADDR_LEN ;
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break ;
}
break ;
}
return hdrlen ;
}
/* 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 int ieee80211_rx ( struct ieee80211_device * ieee , struct sk_buff * skb ,
struct ieee80211_rx_stats * rx_stats ) ;
extern void ieee80211_rx_mgt ( struct ieee80211_device * ieee ,
struct ieee80211_hdr * header ,
struct ieee80211_rx_stats * stats ) ;
/* iee80211_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 inline void ieee80211_increment_scans ( struct ieee80211_device * ieee )
{
ieee - > scans + + ;
}
extern inline int ieee80211_get_scans ( struct ieee80211_device * ieee )
{
return ieee - > scans ;
}
static inline const char * escape_essid ( const char * essid , u8 essid_len ) {
static char escaped [ IW_ESSID_MAX_SIZE * 2 + 1 ] ;
const char * s = essid ;
char * d = escaped ;
if ( ieee80211_is_empty_essid ( essid , essid_len ) ) {
memcpy ( escaped , " <hidden> " , sizeof ( " <hidden> " ) ) ;
return escaped ;
}
essid_len = min ( essid_len , ( u8 ) IW_ESSID_MAX_SIZE ) ;
while ( essid_len - - ) {
if ( * s = = ' \0 ' ) {
* d + + = ' \\ ' ;
* d + + = ' 0 ' ;
s + + ;
} else {
* d + + = * s + + ;
}
}
* d = ' \0 ' ;
return escaped ;
}
# endif /* IEEE80211_H */
