/******************************************************************************
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* Modifications for inclusion into the Linux staging tree are
* Copyright(c) 2010 Larry Finger. All rights reserved.
*
* Contact information:
* WLAN FAE <wlanfae@realtek.com>
* Larry Finger <Larry.Finger@lwfinger.net>
*
******************************************************************************/
#ifndef __RTL871X_SECURITY_H_
#define __RTL871X_SECURITY_H_
#include "osdep_service.h"
#include "drv_types.h"
#define _NO_PRIVACY_ 0x0
#define _WEP40_ 0x1
#define _TKIP_ 0x2
#define _TKIP_WTMIC_ 0x3
#define _AES_ 0x4
#define _WEP104_ 0x5
#define _WPA_IE_ID_ 0xdd
#define _WPA2_IE_ID_ 0x30
#ifndef Ndis802_11AuthModeWPA2
#define Ndis802_11AuthModeWPA2 (Ndis802_11AuthModeWPANone + 1)
#endif
#ifndef Ndis802_11AuthModeWPA2PSK
#define Ndis802_11AuthModeWPA2PSK (Ndis802_11AuthModeWPANone + 2)
#endif
union pn48 {
u64 val;
#if defined(__BIG_ENDIAN)
struct {
u8 TSC7;
u8 TSC6;
u8 TSC5;
u8 TSC4;
u8 TSC3;
u8 TSC2;
u8 TSC1;
u8 TSC0;
} _byte_;
#else
struct {
u8 TSC0;
u8 TSC1;
u8 TSC2;
u8 TSC3;
u8 TSC4;
u8 TSC5;
u8 TSC6;
u8 TSC7;
} _byte_;
#endif
};
union Keytype {
u8 skey[16];
u32 lkey[4];
};
struct RT_PMKID_LIST {
u8 bUsed;
u8 Bssid[6];
u8 PMKID[16];
u8 SsidBuf[33];
u8 *ssid_octet;
u16 ssid_length;
};
struct security_priv {
u32 AuthAlgrthm; /* 802.11 auth, could be open, shared,
* 8021x and authswitch */
u32 PrivacyAlgrthm; /* This specify the privacy for shared
* auth. algorithm. */
u32 PrivacyKeyIndex; /* this is only valid for legendary
* wep, 0~3 for key id. */
union Keytype DefKey[4]; /* this is only valid for def. key */
u32 DefKeylen[4];
u32 XGrpPrivacy; /* This specify the privacy algthm.
* used for Grp key */
u32 XGrpKeyid; /* key id used for Grp Key */
union Keytype XGrpKey[2]; /* 802.1x Group Key, for
* inx0 and inx1 */
union Keytype XGrptxmickey[2];
union Keytype XGrprxmickey[2];
union pn48 Grptxpn; /* PN48 used for Grp Key xmit. */
union pn48 Grprxpn; /* PN48 used for Grp Key recv. */
u8 wps_hw_pbc_pressed;/*for hw pbc pressed*/
u8 wps_phase;/*for wps*/
u8 wps_ie[MAX_WPA_IE_LEN<<2];
int wps_ie_len;
u8 binstallGrpkey;
u8 busetkipkey;
struct timer_list tkip_timer;
u8 bcheck_grpkey;
u8 bgrpkey_handshake;
s32 sw_encrypt; /* from registry_priv */
s32 sw_decrypt; /* from registry_priv */
s32 hw_decrypted; /* if the rx packets is hw_decrypted==false,
* it means the hw has not been ready. */
u32 ndisauthtype; /* keeps the auth_type & enc_status from upper
* layer ioctl(wpa_supplicant or wzc) */
u32 ndisencryptstatus;
struct wlan_bssid_ex sec_bss; /* for joinbss (h2c buffer) usage */
struct NDIS_802_11_WEP ndiswep;
u8 assoc_info[600];
u8 szofcapability[256]; /* for wpa2 usage */
u8 oidassociation[512]; /* for wpa/wpa2 usage */
u8 authenticator_ie[256]; /* store ap security information element */
u8 supplicant_ie[256]; /* store sta security information element */
/* for tkip countermeasure */
u32 last_mic_err_time;
u8 btkip_countermeasure;
u8 btkip_wait_report;
u32 btkip_countermeasure_time;
/*-------------------------------------------------------------------
* For WPA2 Pre-Authentication.
*------------------------------------------------------------------ */
struct RT_PMKID_LIST PMKIDList[NUM_PMKID_CACHE];
u8 PMKIDIndex;
};
#define GET_ENCRY_ALGO(psecuritypriv, psta, encry_algo, bmcst) \
do { \
switch (psecuritypriv->AuthAlgrthm) { \
case 0: \
case 1: \
case 3: \
encry_algo = (u8)psecuritypriv->PrivacyAlgrthm; \
break; \
case 2: \
if (bmcst) \
encry_algo = (u8)psecuritypriv->XGrpPrivacy; \
else \
encry_algo = (u8)psta->XPrivacy; \
break; \
} \
} while (0)
#define SET_ICE_IV_LEN(iv_len, icv_len, encrypt)\
do {\
switch (encrypt) { \
case _WEP40_: \
case _WEP104_: \
iv_len = 4; \
icv_len = 4; \
break; \
case _TKIP_: \
iv_len = 8; \
icv_len = 4; \
break; \
case _AES_: \
iv_len = 8; \
icv_len = 8; \
break; \
default: \
iv_len = 0; \
icv_len = 0; \
break; \
} \
} while (0)
#define GET_TKIP_PN(iv, txpn) \
do {\
txpn._byte_.TSC0 = iv[2];\
txpn._byte_.TSC1 = iv[0];\
txpn._byte_.TSC2 = iv[4];\
txpn._byte_.TSC3 = iv[5];\
txpn._byte_.TSC4 = iv[6];\
txpn._byte_.TSC5 = iv[7];\
} while (0)
#define ROL32(A, n) (((A) << (n)) | (((A)>>(32-(n))) & ((1UL << (n)) - 1)))
#define ROR32(A, n) ROL32((A), 32 - (n))
struct mic_data {
u32 K0, K1; /* Key */
u32 L, R; /* Current state */
u32 M; /* Message accumulator (single word) */
u32 nBytesInM; /* # bytes in M */
};
void seccalctkipmic(
u8 *key,
u8 *header,
u8 *data,
u32 data_len,
u8 *Miccode,
u8 priority);
void r8712_secmicsetkey(struct mic_data *pmicdata, u8 * key);
void r8712_secmicappend(struct mic_data *pmicdata, u8 * src, u32 nBytes);
void r8712_secgetmic(struct mic_data *pmicdata, u8 * dst);
u32 r8712_aes_encrypt(struct _adapter *padapter, u8 *pxmitframe);
u32 r8712_tkip_encrypt(struct _adapter *padapter, u8 *pxmitframe);
void r8712_wep_encrypt(struct _adapter *padapter, u8 *pxmitframe);
u32 r8712_aes_decrypt(struct _adapter *padapter, u8 *precvframe);
u32 r8712_tkip_decrypt(struct _adapter *padapter, u8 *precvframe);
void r8712_wep_decrypt(struct _adapter *padapter, u8 *precvframe);
void r8712_use_tkipkey_handler(void *FunctionContext);
#endif /*__RTL871X_SECURITY_H_ */