/* * 802.1x EAPOL definitions * * See * IEEE Std 802.1X-2001 * IEEE 802.1X RADIUS Usage Guidelines * * Copyright 2005-2006, Broadcom Corporation * All Rights Reserved. *  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. * $Id$ */#ifndef _eapol_h_#define _eapol_h_/* enable structure packing */#if defined(__GNUC__)#define	PACKED	__attribute__((packed))#else#pragma pack(1)#define	PACKED#endif/* EAPOL for 802.3/Ethernet */typedef struct {	struct ether_header eth;	/* 802.3/Ethernet header */	unsigned char version;		/* EAPOL protocol version */	unsigned char type;		/* EAPOL type */	unsigned short length;		/* Length of body */	unsigned char body[1];		/* Body (optional) */} eapol_header_t;#define EAPOL_HEADER_LEN 18/* EAPOL version */#define WPA2_EAPOL_VERSION	2#define WPA_EAPOL_VERSION	1#define LEAP_EAPOL_VERSION	1/* EAPOL types */#define EAP_PACKET		0#define EAPOL_START		1#define EAPOL_LOGOFF		2#define EAPOL_KEY		3#define EAPOL_ASF		4/* EAPOL-Key types */#define EAPOL_RC4_KEY		1#define EAPOL_WPA_KEY		254	/* WPA *//* RC4 EAPOL-Key header field sizes */#define EAPOL_KEY_REPLAY_LEN	8#define EAPOL_KEY_IV_LEN	16#define EAPOL_KEY_SIG_LEN	16/* RC4 EAPOL-Key */typedef struct {	unsigned char type;			/* Key Descriptor Type */	unsigned short length;			/* Key Length (unaligned) */	unsigned char replay[EAPOL_KEY_REPLAY_LEN];	/* Replay Counter */	unsigned char iv[EAPOL_KEY_IV_LEN];		/* Key IV */	unsigned char index;				/* Key Flags & Index */	unsigned char signature[EAPOL_KEY_SIG_LEN];	/* Key Signature */	unsigned char key[1];				/* Key (optional) */} PACKED eapol_key_header_t;#define EAPOL_KEY_HEADER_LEN 	44/* RC4 EAPOL-Key flags */#define EAPOL_KEY_FLAGS_MASK	0x80#define EAPOL_KEY_BROADCAST	0#define EAPOL_KEY_UNICAST	0x80#define AKW_BLOCK_LEN	8/* RC4 EAPOL-Key index */#define EAPOL_KEY_INDEX_MASK	0x7f/* WPA/802.11i/WPA2 EAPOL-Key header field sizes */#define EAPOL_WPA_KEY_REPLAY_LEN	8#define EAPOL_WPA_KEY_NONCE_LEN		32#define EAPOL_WPA_KEY_IV_LEN		16#define EAPOL_WPA_KEY_RSC_LEN		8#define EAPOL_WPA_KEY_ID_LEN		8#define EAPOL_WPA_KEY_MIC_LEN		16#define EAPOL_WPA_KEY_DATA_LEN		(EAPOL_WPA_MAX_KEY_SIZE + AKW_BLOCK_LEN)#define EAPOL_WPA_MAX_KEY_SIZE		32/* WPA EAPOL-Key */typedef struct {	unsigned char type;		/* Key Descriptor Type */	unsigned short key_info;	/* Key Information (unaligned) */	unsigned short key_len;		/* Key Length (unaligned) */	unsigned char replay[EAPOL_WPA_KEY_REPLAY_LEN];	/* Replay Counter */	unsigned char nonce[EAPOL_WPA_KEY_NONCE_LEN];	/* Nonce */	unsigned char iv[EAPOL_WPA_KEY_IV_LEN];		/* Key IV */	unsigned char rsc[EAPOL_WPA_KEY_RSC_LEN];	/* Key RSC */	unsigned char id[EAPOL_WPA_KEY_ID_LEN];		/* WPA:Key ID, 802.11i/WPA2: Reserved */	unsigned char mic[EAPOL_WPA_KEY_MIC_LEN];	/* Key MIC */	unsigned short data_len;			/* Key Data Length */	unsigned char data[EAPOL_WPA_KEY_DATA_LEN];	/* Key data */} PACKED eapol_wpa_key_header_t;#define EAPOL_WPA_KEY_LEN 		95/* WPA/802.11i/WPA2 KEY KEY_INFO bits */#define WPA_KEY_DESC_V1		0x01#define WPA_KEY_DESC_V2		0x02#define WPA_KEY_PAIRWISE	0x08#define WPA_KEY_INSTALL		0x40#define WPA_KEY_ACK		0x80#define WPA_KEY_MIC		0x100#define WPA_KEY_SECURE		0x200#define WPA_KEY_ERROR		0x400#define WPA_KEY_REQ		0x800/* WPA-only KEY KEY_INFO bits */#define WPA_KEY_INDEX_0		0x00#define WPA_KEY_INDEX_1		0x10#define WPA_KEY_INDEX_2		0x20#define WPA_KEY_INDEX_3		0x30#define WPA_KEY_INDEX_MASK	0x30#define WPA_KEY_INDEX_SHIFT	0x04#undef PACKED#if !defined(__GNUC__)#pragma pack()#endif#endif /* _eapol_h_ */