ieee80211_common.h

该系统是基于Linux平台的WLAN应用

#ifndef _IEEE80211_COMMON_H_
#define _IEEE80211_COMMON_H_
#include "PlatformInterface.h"
#define uint16_t u16
#define uint8_t u8
#define uint32_t u32

#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\n"

#define WLAN_FC_GET_TYPE(fc) (((fc) & (BIT(3) | BIT(2))) >> 2)
#define WLAN_FC_GET_STYPE(fc) \
	(((fc) & (BIT(7) | BIT(6) | BIT(5) | BIT(4))) >> 4)
#define WLAN_FC_GET_VERSION(fc) ( (fc) & (BIT(1) | BIT(0)) )

#define WLAN_GET_SEQ_FRAG(seq) ((seq) & (BIT(3) | BIT(2) | BIT(1) | BIT(0)))
#define WLAN_GET_SEQ_SEQ(seq) \
	(((seq) & (~(BIT(3) | BIT(2) | BIT(1) | BIT(0)))) >> 4)


/*define frame type*/
#define WLAN_MANAGEMENT_FRAME	0
#define WLAN_CONTROL_FRAME		1
#define WLAN_DATA_FRAME			2

#define WLAN_ALL_FRAME			4

/* 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

/* control */
#define WLAN_FC_STYPE_PSPOLL 10
#define WLAN_FC_STYPE_RTS 11
#define WLAN_FC_STYPE_CTS 12
#define WLAN_FC_STYPE_ACK 13
#define WLAN_FC_STYPE_CFEND 14
#define WLAN_FC_STYPE_CFENDACK 15

/* data */
#define WLAN_FC_STYPE_DATA 0
#define WLAN_FC_STYPE_DATA_CFACK 1
#define WLAN_FC_STYPE_DATA_CFPOLL 2
#define WLAN_FC_STYPE_DATA_CFACKPOLL 3
#define WLAN_FC_STYPE_NULLFUNC 4
#define WLAN_FC_STYPE_CFACK 5
#define WLAN_FC_STYPE_CFPOLL 6
#define WLAN_FC_STYPE_CFACKPOLL 7

/* Authentication algorithms */
#define WLAN_AUTH_OPEN 0
#define WLAN_AUTH_SHARED_KEY 1

#define WLAN_AUTH_CHALLENGE_LEN 128

#define WLAN_CAPABILITY_ESS 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)

/* 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
/* IEEE 802.11i */
#define WLAN_STATUS_INVALID_IE 40
#define WLAN_STATUS_GROUP_CIPHER_NOT_VALID 41
#define WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID 42
#define WLAN_STATUS_AKMP_NOT_VALID 43
#define WLAN_STATUS_UNSUPPORTED_RSN_IE_VERSION 44
#define WLAN_STATUS_INVALID_RSN_IE_CAPAB 45
#define WLAN_STATUS_CIPHER_REJECTED_PER_POLICY 46

/* 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
/* IEEE 802.11i */
#define WLAN_REASON_INVALID_IE 13
#define WLAN_REASON_MICHAEL_MIC_FAILURE 14
#define WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT 15
#define WLAN_REASON_GROUP_KEY_UPDATE_TIMEOUT 16
#define WLAN_REASON_IE_IN_4WAY_DIFFERS 17
#define WLAN_REASON_GROUP_CIPHER_NOT_VALID 18
#define WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID 19
#define WLAN_REASON_AKMP_NOT_VALID 20
#define WLAN_REASON_UNSUPPORTED_RSN_IE_VERSION 21
#define WLAN_REASON_INVALID_RSN_IE_CAPAB 22
#define WLAN_REASON_IEEE_802_1X_AUTH_FAILED 23
#define WLAN_REASON_CIPHER_SUITE_REJECTED 24


/* 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

/*define bit mask*/
#define WLAN_BITSET_PVER                ((BIT(1) | BIT(0)))
#define WLAN_BITSET_TODS                BIT(8)
#define WLAN_BITSET_FROMDS              BIT(9)
#define WLAN_BITSET_MOREFRAG            BIT(10)
#define WLAN_BITSET_RETRY               BIT(11)
#define WLAN_BITSET_PWRMGT              BIT(12)
#define WLAN_BITSET_MOREDATA            BIT(13)
#define WLAN_BITSET_ISWEP               BIT(14)
#define WLAN_BITSET_ORDER               BIT(15)


#define WLAN_FC_GET_TODS(fc) ( (fc) & BIT(0) )
#define WLAN_FC_GET_FROMDS(fc) ( ((fc) & BIT(1)) >> 1 )
#define WLAN_FC_GET_MOREFRAG(fc) ( ((fc) & BIT(2)) >> 2 )
#define WLAN_FC_GET_RETRY(fc) ( ((fc) & BIT(3)) >>3 )
#define WLAN_FC_GET_PWRMGT(fc) ( ((fc) & BIT(4)) >>4 )
#define WLAN_FC_GET_MOREDATA(fc) ( ((fc) & BIT(5)) >> 5 )
#define WLAN_FC_GET_ISWEP(fc) ( ((fc) & BIT(6)) >> 6 )
#define WLAN_FC_GET_ORDER(fc) ( ((fc) & BIT(7)) >> 7 )

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

struct platform_ieee80211_mgmt {
	union {
		struct {
			uint8_t version:2;
			uint8_t type:2;
			uint8_t subtype:4;
			uint8_t to_ds:1;
			uint8_t from_ds:1;
			uint8_t more_frag:1;
			uint8_t retry:1;
			uint8_t pwrmgmt:1;
			uint8_t more_data:1;
			uint8_t wep:1;
			uint8_t order:1;
		} __attribute__ ((packed)) fc;

		uint16_t fchdr;
	} u1;
	u16 duration;
	u8 da[6];
	u8 sa[6];
	u8 bssid[6];
	union {
                struct {
                        u16 fragment:4;
                        u16 sequence:12;
                } __attribute__ ((packed)) seq;

                u16 seqhdr;
        } u2;
	union {
		struct {
			u16 auth_alg;
			u16 auth_transaction;
			u16 status_code;
			/* possibly followed by Challenge text */
			u8 variable[0];
		} __attribute__ ((packed)) auth;
		struct {
			u16 reason_code;
		} __attribute__ ((packed)) deauth;
		struct {
			u16 capab_info;
			u16 listen_interval;
			/* followed by SSID and Supported rates */
			u8 variable[0];
		} __attribute__ ((packed)) assoc_req;
		struct {
			u16 capab_info;
			u16 status_code;
			u16 aid;
			/* followed by Supported rates */
			u8 variable[0];
		} __attribute__ ((packed)) assoc_resp, reassoc_resp;
		struct {
			u16 capab_info;
			u16 listen_interval;
			u8 current_ap[6];
			/* followed by SSID and Supported rates */
			u8 variable[0];
		} __attribute__ ((packed)) reassoc_req;
		struct {
			u16 reason_code;
		} __attribute__ ((packed)) disassoc;
		struct {
		} __attribute__ ((packed)) probe_req;
		struct {
			u8 timestamp[8];
			u16 beacon_int;
			u16 capab_info;
			/* followed by some of SSID, Supported rates,
			 * FH Params, DS Params, CF Params, IBSS Params, TIM */
			u8 variable[0];
		} __attribute__ ((packed)) beacon, probe_resp;
	} u;
} __attribute__ ((packed));

struct platform_ieee80211_control{
	union {
		struct {
			u8 version:2;
			u8 type:2;
			u8 subtype:4;
			u8 to_ds:1;
			u8 from_ds:1;
			u8 more_frag:1;
			u8 retry:1;
			u8 pwrmgmt:1;
			u8 more_data:1;
			u8 wep:1;
			u8 order:1;
		} __attribute__ ((packed)) fc;
		
		u16 fchdr;
	} u1;

	union {
		u16 duration;
		u16 aid;
	} u2;
	
	union {
		u8 ra[6];
		u8 bssid[6];
	} u3;
	
	union {
		u8 ta[6];
		u8 bssid[6];
		u8 fcs[4];//for CTS and ACK
	} u4;
	
	u8 fcs[4];
/*
	u8 addr1[6];
	u8 addr2[6];
	u8 addr3[6];

	union {
		struct {
			u16 fragment:4;
			u16 sequence:12;
		} __attribute__ ((packed)) seq;
		
		u16 seqhdr;
	} u3; 
*/
} __attribute__ ((packed));


struct platform_ieee80211_data{
	union {
                struct {
                        u8 version:2;
                        u8 type:2;
                        u8 subtype:4;
                        u8 to_ds:1;
                        u8 from_ds:1;
                        u8 more_frag:1;
                        u8 retry:1;
                        u8 pwrmgmt:1;
                        u8 more_data:1;
                        u8 wep:1;
                        u8 order:1;
                } __attribute__ ((packed)) fc;

                u16 fchdr;
        } u1;

	u16 duration;
	u8 addr1[6];
	u8 addr2[6];
	u8 addr3[6];
	union {
                struct {
                        u16 fragment:4;
                        u16 sequence:12;
                } __attribute__ ((packed)) seq;

                u16 seqhdr;
        } u2;
	u8 addr4[6];
	u8 frame_body[2312];
	u8 fcs[4];


} __attribute__ ((packed));

struct platform_ieee80211_unknown{
	union {
                struct {
                        u8 version:2;
                        u8 type:2;
                        u8 subtype:4;
                        u8 to_ds:1;
                        u8 from_ds:1;
                        u8 more_frag:1;
                        u8 retry:1;
                        u8 pwrmgmt:1;
                        u8 more_data:1;
                        u8 wep:1;
                        u8 order:1;
                } __attribute__ ((packed)) fc;

                u16 fchdr;
        } u1;
	u8 variable[0];

};
//define the relation between ie num and ie content
//must be defined in the .c file

//void frame_type_dump(int frame_type, int frame_subtype);
//int wireless_frame_parse();

#endif