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*
* Copyright(c) 2007 - 2011 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.
*
******************************************************************************/
#ifndef __RTW_SECURITY_H_
#define __RTW_SECURITY_H_
#include <osdep_service.h>
#include <drv_types.h>
#include <net/lib80211.h>
#define is_wep_enc(alg) (alg == WLAN_CIPHER_SUITE_WEP40 || \
alg == WLAN_CIPHER_SUITE_WEP104)
#define SHA256_MAC_LEN 32
#define AES_BLOCK_SIZE 16
#define AES_PRIV_SIZE (4 * 44)
enum ENCRYP_PROTOCOL {
ENCRYP_PROTOCOL_OPENSYS, /* open system */
ENCRYP_PROTOCOL_WEP, /* WEP */
ENCRYP_PROTOCOL_WPA, /* WPA */
ENCRYP_PROTOCOL_WPA2, /* WPA2 */
ENCRYP_PROTOCOL_MAX
};
#ifndef Ndis802_11AuthModeWPA2
#define Ndis802_11AuthModeWPA2 (Ndis802_11AuthModeWPANone + 1)
#endif
#ifndef Ndis802_11AuthModeWPA2PSK
#define Ndis802_11AuthModeWPA2PSK (Ndis802_11AuthModeWPANone + 2)
#endif
union pn48 {
u64 val;
#ifdef __LITTLE_ENDIAN
struct {
u8 TSC0;
u8 TSC1;
u8 TSC2;
u8 TSC3;
u8 TSC4;
u8 TSC5;
u8 TSC6;
u8 TSC7;
} _byte_;
#elif defined(__BIG_ENDIAN)
struct {
u8 TSC7;
u8 TSC6;
u8 TSC5;
u8 TSC4;
u8 TSC3;
u8 TSC2;
u8 TSC1;
u8 TSC0;
} _byte_;
#else
#error Need BIG or LITTLE endian
#endif
};
union Keytype {
u8 skey[16];
u32 lkey[4];
};
struct rtw_wep_key {
u8 key[WLAN_KEY_LEN_WEP104 + 1]; /* 14 */
u16 keylen;
};
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 dot11AuthAlgrthm; /* 802.11 auth, could be open, shared,
* 8021x and authswitch */
u32 dot11PrivacyAlgrthm; /* This specifies the privacy for
* shared auth. algorithm.
*/
/* WEP */
u32 dot11PrivacyKeyIndex; /* this is only valid for legendary
* wep, 0~3 for key id. (tx key index)
*/
struct rtw_wep_key wep_key[NUM_WEP_KEYS];
u32 dot118021XGrpPrivacy; /* specify the privacy algthm.
* used for Grp key
*/
u32 dot118021XGrpKeyid; /* key id used for Grp Key
* (tx key index)
*/
union Keytype dot118021XGrpKey[4];/* 802.1x Grp Key, inx0 and inx1 */
union Keytype dot118021XGrptxmickey[4];
union Keytype dot118021XGrprxmickey[4];
union pn48 dot11Grptxpn; /* PN48 used for Grp Key xmit.*/
union pn48 dot11Grprxpn; /* PN48 used for Grp Key recv.*/
#ifdef CONFIG_8723AU_AP_MODE
/* extend security capabilities for AP_MODE */
unsigned int dot8021xalg;/* 0:disable, 1:psk, 2:802.1x */
unsigned int wpa_psk;/* 0:disable, bit(0): WPA, bit(1):WPA2 */
unsigned int wpa_group_cipher;
unsigned int wpa2_group_cipher;
unsigned int wpa_pairwise_cipher;
unsigned int wpa2_pairwise_cipher;
#endif
u8 wps_ie[MAX_WPS_IE_LEN];/* added in assoc req */
int wps_ie_len;
unsigned int binstallGrpkey:1;
unsigned int busetkipkey:1;
unsigned int bcheck_grpkey:1;
unsigned int hw_decrypted:1;
u32 ndisauthtype; /* enum ndis_802_11_auth_mode */
u32 ndisencryptstatus; /* NDIS_802_11_ENCRYPTION_STATUS */
struct wlan_bssid_ex sec_bss; /* for joinbss (h2c buffer) usage */
u8 assoc_info[600];
u8 szofcapability[256]; /* for wpa2 usage */
u8 oidassociation[512]; /* for wpa/wpa2 usage */
u8 supplicant_ie[256]; /* store sta security information element */
/* for tkip countermeasure */
unsigned long last_mic_err_time;
u8 btkip_countermeasure;
u8 btkip_wait_report;
unsigned long btkip_countermeasure_time;
/* For WPA2 Pre-Authentication. */
struct rt_pmkid_list PMKIDList[NUM_PMKID_CACHE];
u8 PMKIDIndex;
u8 bWepDefaultKeyIdxSet;
};
struct sha256_state {
u64 length;
u32 state[8], curlen;
u8 buf[64];
};
#define GET_ENCRY_ALGO(psecuritypriv, psta, encry_algo, bmcst)\
do {\
switch (psecuritypriv->dot11AuthAlgrthm) {\
case dot11AuthAlgrthm_Open:\
case dot11AuthAlgrthm_Shared:\
case dot11AuthAlgrthm_Auto:\
encry_algo = psecuritypriv->dot11PrivacyAlgrthm;\
break;\
case dot11AuthAlgrthm_8021X:\
if (bmcst)\
encry_algo = psecuritypriv->dot118021XGrpPrivacy;\
else\
encry_algo = psta->dot118021XPrivacy;\
break;\
} \
} while (0)
#define GET_TKIP_PN(iv, dot11txpn)\
do {\
dot11txpn._byte_.TSC0 = iv[2];\
dot11txpn._byte_.TSC1 = iv[0];\
dot11txpn._byte_.TSC2 = iv[4];\
dot11txpn._byte_.TSC3 = iv[5];\
dot11txpn._byte_.TSC4 = iv[6];\
dot11txpn._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 */
};
extern const u32 Te0[256];
extern const u32 Te1[256];
extern const u32 Te2[256];
extern const u32 Te3[256];
extern const u32 Te4[256];
extern const u32 Td0[256];
extern const u32 Td1[256];
extern const u32 Td2[256];
extern const u32 Td3[256];
extern const u32 Td4[256];
extern const u32 rcon[10];
extern const u8 Td4s[256];
extern const u8 rcons[10];
#define RCON(i) (rcons[(i)] << 24)
static inline u32 rotr(u32 val, int bits)
{
return (val >> bits) | (val << (32 - bits));
}
#define TE0(i) Te0[((i) >> 24) & 0xff]
#define TE1(i) rotr(Te0[((i) >> 16) & 0xff], 8)
#define TE2(i) rotr(Te0[((i) >> 8) & 0xff], 16)
#define TE3(i) rotr(Te0[(i) & 0xff], 24)
#define TE41(i) ((Te0[((i) >> 24) & 0xff] << 8) & 0xff000000)
#define TE42(i) (Te0[((i) >> 16) & 0xff] & 0x00ff0000)
#define TE43(i) (Te0[((i) >> 8) & 0xff] & 0x0000ff00)
#define TE44(i) ((Te0[(i) & 0xff] >> 8) & 0x000000ff)
#define TE421(i) ((Te0[((i) >> 16) & 0xff] << 8) & 0xff000000)
#define TE432(i) (Te0[((i) >> 8) & 0xff] & 0x00ff0000)
#define TE443(i) (Te0[(i) & 0xff] & 0x0000ff00)
#define TE414(i) ((Te0[((i) >> 24) & 0xff] >> 8) & 0x000000ff)
#define TE4(i) ((Te0[(i)] >> 8) & 0x000000ff)
#define TD0(i) Td0[((i) >> 24) & 0xff]
#define TD1(i) rotr(Td0[((i) >> 16) & 0xff], 8)
#define TD2(i) rotr(Td0[((i) >> 8) & 0xff], 16)
#define TD3(i) rotr(Td0[(i) & 0xff], 24)
#define TD41(i) (Td4s[((i) >> 24) & 0xff] << 24)
#define TD42(i) (Td4s[((i) >> 16) & 0xff] << 16)
#define TD43(i) (Td4s[((i) >> 8) & 0xff] << 8)
#define TD44(i) (Td4s[(i) & 0xff])
#define TD0_(i) Td0[(i) & 0xff]
#define TD1_(i) rotr(Td0[(i) & 0xff], 8)
#define TD2_(i) rotr(Td0[(i) & 0xff], 16)
#define TD3_(i) rotr(Td0[(i) & 0xff], 24)
#define GETU32(pt) (((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ \
((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]))
#define PUTU32(ct, st) { \
(ct)[0] = (u8)((st) >> 24); (ct)[1] = (u8)((st) >> 16); \
(ct)[2] = (u8)((st) >> 8); (ct)[3] = (u8)(st); }
#define WPA_GET_BE32(a) ((((u32) (a)[0]) << 24) | (((u32) (a)[1]) << 16) | \
(((u32) (a)[2]) << 8) | ((u32) (a)[3]))
#define WPA_PUT_LE16(a, val) \
do { \
(a)[1] = ((u16) (val)) >> 8; \
(a)[0] = ((u16) (val)) & 0xff; \
} while (0)
#define WPA_PUT_BE32(a, val) \
do { \
(a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff); \
(a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff); \
(a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff); \
(a)[3] = (u8) (((u32) (val)) & 0xff); \
} while (0)
#define WPA_PUT_BE64(a, val) \
do { \
(a)[0] = (u8) (((u64) (val)) >> 56); \
(a)[1] = (u8) (((u64) (val)) >> 48); \
(a)[2] = (u8) (((u64) (val)) >> 40); \
(a)[3] = (u8) (((u64) (val)) >> 32); \
(a)[4] = (u8) (((u64) (val)) >> 24); \
(a)[5] = (u8) (((u64) (val)) >> 16); \
(a)[6] = (u8) (((u64) (val)) >> 8); \
(a)[7] = (u8) (((u64) (val)) & 0xff); \
} while (0)
/* ===== start - public domain SHA256 implementation ===== */
/* This is based on SHA256 implementation in LibTomCrypt that was released into
* public domain by Tom St Denis. */
/* the K array */
static const unsigned long K[64] = {
0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 0x3956c25bUL,
0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 0xd807aa98UL, 0x12835b01UL,
0x243185beUL, 0x550c7dc3UL, 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL,
0xc19bf174UL, 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL, 0x983e5152UL,
0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL, 0xc6e00bf3UL, 0xd5a79147UL,
0x06ca6351UL, 0x14292967UL, 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL,
0x53380d13UL, 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL, 0xd192e819UL,
0xd6990624UL, 0xf40e3585UL, 0x106aa070UL, 0x19a4c116UL, 0x1e376c08UL,
0x2748774cUL, 0x34b0bcb5UL, 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL,
0x682e6ff3UL, 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
};
void rtw_secmicsetkey23a(struct mic_data *pmicdata, u8 *key);
void rtw_secmicappend23abyte23a(struct mic_data *pmicdata, u8 b);
void rtw_secmicappend23a(struct mic_data *pmicdata, u8 *src, u32 nbBytes);
void rtw_secgetmic23a(struct mic_data *pmicdata, u8 *dst);
void rtw_seccalctkipmic23a(u8 *key, u8 *header, u8 *data, u32 data_len,
u8 *Miccode, u8 priorityi);
int rtw_aes_encrypt23a(struct rtw_adapter *padapter,
struct xmit_frame *pxmitframe);
int rtw_tkip_encrypt23a(struct rtw_adapter *padapter,
struct xmit_frame *pxmitframe);
void rtw_wep_encrypt23a(struct rtw_adapter *padapter,
struct xmit_frame *pxmitframe);
int rtw_aes_decrypt23a(struct rtw_adapter *padapter,
struct recv_frame *precvframe);
int rtw_tkip_decrypt23a(struct rtw_adapter *padapter,
struct recv_frame *precvframe);
void rtw_wep_decrypt23a(struct rtw_adapter *padapter, struct recv_frame *precvframe);
void rtw_use_tkipkey_handler23a(void *FunctionContext);
#endif /* __RTL871X_SECURITY_H_ */
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