ieee80211.h

RTL8187 for linux驱动 提供内核支持802.11g的模块

/*
 * Original code 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
 * <[e-mail]>
 * Copyright (c) 2002-2003, Jouni Malinen <[e-mail]>
 *
 * Adaption to a generic IEEE 802.11 stack by James Ketrenos 
 * <[e-mail]>
 *
 * Copyright (c) 2004, Intel Corporation
 *
 * Association logic, scanning WX and logics and net queue logic
 * added by Andrea Merello 
 * <[e-mail]>
 *
 * 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
#define DRV_NAME "ieee80211"

#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <linux/version.h>

/* Include compatibility macros for 2.4 kernels */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#include "compat24.h"
#endif

#ifndef WIRELESS_SPY
#define WIRELESS_SPY		// enable iwspy support
#endif
#include <net/iw_handler.h>	// new driver API

#define IEEE80211DMESG(x,a...) printk(KERN_INFO "IEEE802.11: " x "\n", ## a)

#define BIT(x) (1 << (x))

#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"


#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 */

#include "ieee802_11.h"

#define P80211_OUI_LEN 3

#define MAC_HTABLE_ENTRY 10

struct ieee_802_11_snap_header {

        u8    dsap;   /* always 0xAA */
        u8    ssap;   /* always 0xAA */
        u8    ctrl;   /* always 0x03 */
        u8    oui[P80211_OUI_LEN];    /* organizational universal id */

} __attribute__ ((packed));

#define ACK_LEN 10

#define SNAP_SIZE sizeof(struct ieee_802_11_snap_header)

#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE802_11_FCTL_FTYPE)
#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE802_11_FCTL_STYPE)

#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE802_11_SCTL_FRAG)
#define WLAN_GET_SEQ_SEQ(seq)  ((seq) & IEEE802_11_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 BIT(0)
#define WLAN_CAPABILITY_IBSS BIT(1)
#define WLAN_CAPABILITY_CF_POLLABLE BIT(2)
#define WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3)
#define WLAN_CAPABILITY_PRIVACY BIT(4)
#define WLAN_CAPABILITY_SHORT_PREAMBLE BIT(5)
#define WLAN_CAPABILITY_PBCC BIT(6)
#define WLAN_CAPABILITY_CHANNEL_AGILITY BIT(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


/* Information Element IDs */
#define WLAN_EID_SSID 0
#define WLAN_EID_SUPP_RATES 1
#define WLAN_EID_FH_PARAMS 2
#define WLAN_EID_DS_PARAMS 3
#define WLAN_EID_CF_PARAMS 4
#define WLAN_EID_TIM 5
#define WLAN_EID_IBSS_PARAMS 6
#define WLAN_EID_CHALLENGE 16
#define WLAN_EID_RSN 48
#define WLAN_EID_GENERIC 221

/* frame type */
#define WLAN_FC_TYPE_MGMT 0
#define WLAN_FC_TYPE_CTRL 1
#define WLAN_FC_TYPE_DATA 2
#if 0
/* management */
#define WLAN_FC_STYPE_ASSOC_REQ 0
#define WLAN_FC_STYPE_ASSOC_RESP 1
#define WLAN_FC_STYPE_REASSOC_REQ 2
#define WLAN_FC_STYPE_REASSOC_RESP 3
#define WLAN_FC_STYPE_PROBE_REQ 4
#define WLAN_FC_STYPE_PROBE_RESP 5
#define WLAN_FC_STYPE_BEACON 8
#define WLAN_FC_STYPE_ATIM 9
#define WLAN_FC_STYPE_DISASSOC 10
#define WLAN_FC_STYPE_AUTH 11
#define WLAN_FC_STYPE_DEAUTH 12
#endif
#define WLAN_FC_ISWEP BIT(14)

#define IEEE80211_MGMT_HDR_LEN 24
#define IEEE80211_DATA_HDR3_LEN 24
#define IEEE80211_DATA_HDR4_LEN 30

#define SCAN_JIFFI 6000 //FIXME: these are 8 sec on x86, make it arch ind.

/* carrier */
#define WLAN_LINK_ASSOCIATED 2
#define WLAN_LINK_ASSOCIATING 1
#define WLAN_LINK_NONE 0

/*Association states*/
#define ASSOC_REQ 0
#define ASSOC_AUTH 1
#define ASSOC_SUCCESS 2

extern const long wlan_frequencies[];


struct ieee_tx_beacon
{
	u16 frame_control;
	u16 duration_id;
	u8 addr1[6];
	u8 addr2[6];
	u8 addr3[6];
	u16 seq_ctrl;
	u64 timestamp;
	u16 interval;
	u16 capability;
	
} __attribute__ ((packed));



struct ieee80211_hdr {
	u16 frame_control;
	u16 duration_id;
	u8 addr1[6];
	u8 addr2[6];
	u8 addr3[6];
	u16 seq_ctrl;
	u8 addr4[6];
} __attribute__ ((packed));

/* 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;
	u8 signal;
	u8 noise;
	u16 rate; /* in 100 kbps */
};

/* 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_wep_undecryptable;
	unsigned int rx_message_in_msg_fragments;
	unsigned int rx_message_in_bad_msg_fragments;
	unsigned int aut_noresp;
	unsigned int ass_noresp;
	unsigned int tx_aut;
	unsigned int tx_ass;
	unsigned int rx_ass_ok;
	unsigned int rx_aut_ok;
	unsigned int rx_aut_err;
	unsigned int rx_ass_err;
	unsigned int tx_probe;
	unsigned int rx_probe;
	unsigned long swtxstop;
	unsigned long swtxawake;
	unsigned long rx_auth_rq;
	unsigned long rx_assoc_rq;
	unsigned long reassoc;
	unsigned long tx_probe_rq;
	
};

struct ieee80211_device;

#include "ieee80211_crypt.h"
 
#define SEC_KEY_1         BIT(0)
#define SEC_KEY_2         BIT(1)
#define SEC_KEY_3         BIT(2)
#define SEC_KEY_4         BIT(3)
#define SEC_ACTIVE_KEY    BIT(4)
#define SEC_AUTH_MODE     BIT(5)
#define SEC_UNICAST_GROUP BIT(6)
#define SEC_LEVEL         BIT(7)
#define SEC_ENABLED       BIT(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:1, 
            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

*/

struct ieee80211_header_data {
	u16 frame_control;
	u16 duration_id;
	u8 addr1[6];
	u8 addr2[6];
	u8 addr3[6];
	u16 seq_ctrl;
}__attribute__ ((packed));

#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

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;