drivers/staging/brcm80211/include/bcmwpa.h

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef _BCMWPA_H_
  18 #define _BCMWPA_H_
  19
  20 #include <proto/wpa.h>
  21 #include <proto/802.11.h>
  22 #include <wlioctl.h>
  23
  24 /* Field sizes for WPA key hierarchy */
  25 #define WPA_MIC_KEY_LEN         16
  26 #define WPA_ENCR_KEY_LEN        16
  27 #define WPA_TEMP_ENCR_KEY_LEN   16
  28 #define WPA_TEMP_TX_KEY_LEN     8
  29 #define WPA_TEMP_RX_KEY_LEN     8
  30
  31 #define PMK_LEN                 32
  32 #define TKIP_PTK_LEN            64
  33 #define TKIP_TK_LEN             32
  34 #define AES_PTK_LEN             48
  35 #define AES_TK_LEN              16
  36
  37 /* limits for pre-shared key lengths */
  38 #define WPA_MIN_PSK_LEN         8
  39 #define WPA_MAX_PSK_LEN         64
  40
  41 #define WLC_SW_KEYS(wlc, bsscfg) ((((wlc)->wsec_swkeys) || \
  42         ((bsscfg)->wsec & WSEC_SWFLAG)))
  43
  44 #define WSEC_WEP_ENABLED(wsec)  ((wsec) & WEP_ENABLED)
  45 #define WSEC_TKIP_ENABLED(wsec) ((wsec) & TKIP_ENABLED)
  46 #define WSEC_AES_ENABLED(wsec)  ((wsec) & AES_ENABLED)
  47 #define WSEC_ENABLED(wsec)      ((wsec) & (WEP_ENABLED | TKIP_ENABLED | AES_ENABLED))
  48 #define WSEC_SES_OW_ENABLED(wsec)       ((wsec) & SES_OW_ENABLED)
  49 #define IS_WPA_AUTH(auth)       ((auth) == WPA_AUTH_NONE || \
  50                                  (auth) == WPA_AUTH_UNSPECIFIED || \
  51                                  (auth) == WPA_AUTH_PSK)
  52 #define INCLUDES_WPA_AUTH(auth) \
  53                         ((auth) & (WPA_AUTH_NONE | WPA_AUTH_UNSPECIFIED | WPA_AUTH_PSK))
  54
  55 #define IS_WPA2_AUTH(auth)      ((auth) == WPA2_AUTH_UNSPECIFIED || \
  56                                  (auth) == WPA2_AUTH_PSK)(
  57 #define INCLUDES_WPA2_AUTH(auth) \
  58                         ((auth) & (WPA2_AUTH_UNSPECIFIED | \
  59                                    WPA2_AUTH_PSK))
  60
  61 #define IS_WPA_AKM(akm) ((akm) == RSN_AKM_NONE || \
  62                                  (akm) == RSN_AKM_UNSPECIFIED || \
  63                                  (akm) == RSN_AKM_PSK)
  64 #define IS_WPA2_AKM(akm)        ((akm) == RSN_AKM_UNSPECIFIED || \
  65                                  (akm) == RSN_AKM_PSK)
  66
  67 #define MAX_ARRAY 1
  68 #define MIN_ARRAY 0
  69
  70 /* convert wsec to WPA mcast cipher. algo is needed only when WEP is enabled. */
  71 #define WPA_MCAST_CIPHER(wsec, algo)    (WSEC_WEP_ENABLED(wsec) ? \
  72                 ((algo) == CRYPTO_ALGO_WEP128 ? WPA_CIPHER_WEP_104 : WPA_CIPHER_WEP_40) : \
  73                         WSEC_TKIP_ENABLED(wsec) ? WPA_CIPHER_TKIP : \
  74                         WSEC_AES_ENABLED(wsec) ? WPA_CIPHER_AES_CCM : \
  75                         WPA_CIPHER_NONE)
  76
  77 /* Look for a WPA IE; return it's address if found, NULL otherwise */
  78 extern wpa_ie_fixed_t *BCMROMFN(bcm_find_wpaie) (uint8 *parse, uint len);
  79
  80 /* Check whether the given IE looks like WFA IE with the specific type. */
  81 extern bool bcm_is_wfa_ie(uint8 *ie, uint8 **tlvs, uint *tlvs_len,
  82                           uint8 type);
  83 /* Check whether pointed-to IE looks like WPA. */
  84 #define bcm_is_wpa_ie(ie, tlvs, len)    bcm_is_wfa_ie(ie, tlvs, len, WFA_OUI_TYPE_WPA)
  85
  86 #endif                          /* _BCMWPA_H_ */