bcmwpa.h

wi-fi sources for asus wl138g v2 pci card

/*
 * bcmwpa.h - interface definitions of shared WPA-related functions
 *
 * 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 _BCMWPA_H_
#define _BCMWPA_H_

#include <proto/wpa.h>
#ifdef BCMWPA2
#include <proto/eapol.h>
#endif
#include <proto/802.11.h>
#include <wlioctl.h>

/* Field sizes for WPA key hierarchy */
#define WPA_MIC_KEY_LEN		16
#define WPA_ENCR_KEY_LEN	16
#define WPA_TEMP_ENCR_KEY_LEN	16
#define WPA_TEMP_TX_KEY_LEN	8
#define WPA_TEMP_RX_KEY_LEN	8

#define PMK_LEN			32
#define TKIP_PTK_LEN		64
#define TKIP_TK_LEN		32
#define AES_PTK_LEN		48
#define AES_TK_LEN		16

/* limits for pre-shared key lengths */
#define WPA_MIN_PSK_LEN		8
#define WPA_MAX_PSK_LEN		64

#define WLC_SW_KEYS(wlc) ((((wlc)->wsec_swkeys) || ((wlc)->bsscfg[0]->wsec & WSEC_SWFLAG)))
#define WLC_HW_KEYS(wlc) (!WLC_SW_KEYS(wlc))

#define WSEC_WEP_ENABLED(wsec)	((wsec) & WEP_ENABLED)
#define WSEC_TKIP_ENABLED(wsec)	((wsec) & TKIP_ENABLED)
#define WSEC_AES_ENABLED(wsec)	((wsec) & AES_ENABLED)
#define WSEC_ENABLED(wsec)	((wsec) & (WEP_ENABLED | TKIP_ENABLED | AES_ENABLED))

#define IS_WPA_AUTH(auth)	((auth) == WPA_AUTH_NONE || \
				 (auth) == WPA_AUTH_UNSPECIFIED || \
				 (auth) == WPA_AUTH_PSK)
#define INCLUDES_WPA_AUTH(auth)	\
			((auth) & (WPA_AUTH_NONE | WPA_AUTH_UNSPECIFIED | WPA_AUTH_PSK))

#define IS_WPA_AKM(akm) ((akm) == RSN_AKM_NONE || \
                                 (akm) == RSN_AKM_UNSPECIFIED || \
                                 (akm) == RSN_AKM_PSK)
#ifdef BCMWPA2

#define IS_WPA2_AUTH(auth)      ((auth) == WPA2_AUTH_UNSPECIFIED || \
                                 (auth) == WPA2_AUTH_PSK)

#define INCLUDES_WPA2_AUTH(auth) \
                        ((auth) & (WPA2_AUTH_UNSPECIFIED | WPA2_AUTH_PSK))

#define IS_WPA2_AKM(akm)        ((akm) == RSN_AKM_UNSPECIFIED || \
                                 (akm) == RSN_AKM_PSK)

#endif /* BCMWPA2 */

#define MAX_ARRAY 1
#define MIN_ARRAY 0

/* convert wsec to WPA mcast cipher. algo is needed only when WEP is enabled. */
#define WPA_MCAST_CIPHER(wsec, algo)	(WSEC_WEP_ENABLED(wsec) ? \
		((algo) == CRYPTO_ALGO_WEP128 ? WPA_CIPHER_WEP_104 : WPA_CIPHER_WEP_40) : \
			WSEC_TKIP_ENABLED(wsec) ? WPA_CIPHER_TKIP : \
			WSEC_AES_ENABLED(wsec) ? WPA_CIPHER_AES_CCM : \
			WPA_CIPHER_NONE)

/* Return address of max or min array depending first argument.
 * Return first array addr in case of a draw.
 */
extern uchar *wpa_array_cmp(int max, uint8 *x, uint8 *y, int len);

/* Increment the array argument */
extern void wpa_incr_array(uint8 *array, int len);

/* Convert WPA IE cipher suite to locally used value */
extern bool wpa_cipher(wpa_suite_t *suite, ushort *cipher, bool wep_ok);

/* Look for a WPA IE; return it's address if found, NULL otherwise */
extern wpa_ie_fixed_t *bcm_find_wpaie(uint8 *parse, uint len);

/* Check whether pointed-to IE looks like WPA. */
extern bool bcm_is_wpa_ie(uint8 *ie, uint8 **tlvs, uint *tlvs_len);



extern bool bcmwpa_akm2WPAauth(uint8 *akm, uint32 *auth);
extern bool bcmwpa_cipher2wsec(uint8 *cipher, uint32 *wsec);

#endif	/* _BCMWPA_H_ */