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rtl8192eu-linux-driver/include/rtw_security.h
Magnus Bergmark 1387cf623d
The official RTL8192EU linux driver from D-Link Australia 
Version information: 20140812_rtl8192EU_linux_v4.3.1.1_11320
  2014-08-12
  version 4.3.1.1_11320
Source:
  ftp://files.dlink.com.au/products/DWA-131/REV_E/Drivers/DWA-131_Linux_driver_v4.3.1.1.zip

This version does not currently work on newer kernels, but it does
contain USB ID 2001:3319, which a lot of other repos in GitHub does not.
2015-08-18 21:03:11 +02:00

458 lines
14 KiB
C
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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.
*
* 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
*
*
******************************************************************************/
#ifndef __RTW_SECURITY_H_
#define __RTW_SECURITY_H_
#define _NO_PRIVACY_ 0x0
#define _WEP40_ 0x1
#define _TKIP_ 0x2
#define _TKIP_WTMIC_ 0x3
#define _AES_ 0x4
#define _WEP104_ 0x5
#define _WEP_WPA_MIXED_ 0x07 // WEP + WPA
#define _SMS4_ 0x06
#ifdef CONFIG_IEEE80211W
#define _BIP_ 0x8
#endif //CONFIG_IEEE80211W
#define is_wep_enc(alg) (((alg) == _WEP40_) || ((alg) == _WEP104_))
const char *security_type_str(u8 value);
#define _WPA_IE_ID_ 0xdd
#define _WPA2_IE_ID_ 0x30
#define SHA256_MAC_LEN 32
#define AES_BLOCK_SIZE 16
#define AES_PRIV_SIZE (4 * 44)
#define RTW_KEK_LEN 16
#define RTW_KCK_LEN 16
#define RTW_REPLAY_CTR_LEN 8
typedef enum {
ENCRYP_PROTOCOL_OPENSYS, //open system
ENCRYP_PROTOCOL_WEP, //WEP
ENCRYP_PROTOCOL_WPA, //WPA
ENCRYP_PROTOCOL_WPA2, //WPA2
ENCRYP_PROTOCOL_WAPI, //WAPI: Not support in this version
ENCRYP_PROTOCOL_MAX
}ENCRYP_PROTOCOL_E;
#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 CONFIG_LITTLE_ENDIAN
struct {
u8 TSC0;
u8 TSC1;
u8 TSC2;
u8 TSC3;
u8 TSC4;
u8 TSC5;
u8 TSC6;
u8 TSC7;
} _byte_;
#elif defined(CONFIG_BIG_ENDIAN)
struct {
u8 TSC7;
u8 TSC6;
u8 TSC5;
u8 TSC4;
u8 TSC3;
u8 TSC2;
u8 TSC1;
u8 TSC0;
} _byte_;
#endif
};
union Keytype {
u8 skey[16];
u32 lkey[4];
};
typedef struct _RT_PMKID_LIST
{
u8 bUsed;
u8 Bssid[6];
u8 PMKID[16];
u8 SsidBuf[33];
u8* ssid_octet;
u16 ssid_length;
} RT_PMKID_LIST, *PRT_PMKID_LIST;
struct security_priv
{
u32 dot11AuthAlgrthm; // 802.11 auth, could be open, shared, 8021x and authswitch
u32 dot11PrivacyAlgrthm; // This specify the privacy for shared auth. algorithm.
/* WEP */
u32 dot11PrivacyKeyIndex; // this is only valid for legendary wep, 0~3 for key id. (tx key index)
union Keytype dot11DefKey[4]; // this is only valid for def. key
u32 dot11DefKeylen[4];
u8 key_mask; /* use to restore wep key after hal_init */
u32 dot118021XGrpPrivacy; // This 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 Group Key, for 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_IEEE80211W
u32 dot11wBIPKeyid; // key id used for BIP Key ( tx key index)
union Keytype dot11wBIPKey[6]; // BIP Key, for index4 and index5
union pn48 dot11wBIPtxpn; // PN48 used for Grp Key xmit.
union pn48 dot11wBIPrxpn; // PN48 used for Grp Key recv.
#endif //CONFIG_IEEE80211W
#ifdef CONFIG_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;
u8 binstallGrpkey;
#ifdef CONFIG_GTK_OL
u8 binstallKCK_KEK;
#endif //CONFIG_GTK_OL
#ifdef CONFIG_IEEE80211W
u8 binstallBIPkey;
#endif //CONFIG_IEEE80211W
u8 busetkipkey;
//_timer tkip_timer;
u8 bcheck_grpkey;
u8 bgrpkey_handshake;
//u8 packet_cnt;//unused, removed
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.
//keeps the auth_type & enc_status from upper layer ioctl(wpa_supplicant or wzc)
u32 ndisauthtype; // NDIS_802_11_AUTHENTICATION_MODE
u32 ndisencryptstatus; // NDIS_802_11_ENCRYPTION_STATUS
WLAN_BSSID_EX sec_bss; //for joinbss (h2c buffer) usage
NDIS_802_11_WEP ndiswep;
#ifdef PLATFORM_WINDOWS
u8 KeyMaterial[16];// variable length depending on above field.
#endif
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.
//---------------------------------------------------------------------------
//u8 RegEnablePreAuth; // Default value: Pre-Authentication enabled or not, from registry "EnablePreAuth". Added by Annie, 2005-11-01.
//u8 EnablePreAuthentication; // Current Value: Pre-Authentication enabled or not.
RT_PMKID_LIST PMKIDList[NUM_PMKID_CACHE]; // Renamed from PreAuthKey[NUM_PRE_AUTH_KEY]. Annie, 2006-10-13.
u8 PMKIDIndex;
//u32 PMKIDCount; // Added by Annie, 2006-10-13.
//u8 szCapability[256]; // For WPA2-PSK using zero-config, by Annie, 2005-09-20.
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 = (u8)psecuritypriv->dot11PrivacyAlgrthm;\
break;\
case dot11AuthAlgrthm_8021X:\
if(bmcst)\
encry_algo = (u8)psecuritypriv->dot118021XGrpPrivacy;\
else\
encry_algo =(u8) psta->dot118021XPrivacy;\
break;\
case dot11AuthAlgrthm_WAPI:\
encry_algo = (u8)psecuritypriv->dot11PrivacyAlgrthm;\
break;\
}\
}while(0)
#define _AES_IV_LEN_ 8
#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;\
case _SMS4_:\
iv_len = 18;\
icv_len = 16;\
break;\
default:\
iv_len = 0;\
icv_len = 0;\
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
};
/* Various logical functions */
#define RORc(x, y) \
( ((((unsigned long) (x) & 0xFFFFFFFFUL) >> (unsigned long) ((y) & 31)) | \
((unsigned long) (x) << (unsigned long) (32 - ((y) & 31)))) & 0xFFFFFFFFUL)
#define Ch(x,y,z) (z ^ (x & (y ^ z)))
#define Maj(x,y,z) (((x | y) & z) | (x & y))
#define S(x, n) RORc((x), (n))
#define R(x, n) (((x)&0xFFFFFFFFUL)>>(n))
#define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
#define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
#define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
#define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
#ifndef MIN
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
#endif
#ifdef CONFIG_IEEE80211W
int omac1_aes_128(u8 *key, u8 *data, size_t data_len, u8 *mac);
#endif //CONFIG_IEEE80211W
void rtw_secmicsetkey(struct mic_data *pmicdata, u8 * key );
void rtw_secmicappendbyte(struct mic_data *pmicdata, u8 b );
void rtw_secmicappend(struct mic_data *pmicdata, u8 * src, u32 nBytes );
void rtw_secgetmic(struct mic_data *pmicdata, u8 * dst );
void rtw_seccalctkipmic(
u8 * key,
u8 *header,
u8 *data,
u32 data_len,
u8 *Miccode,
u8 priority);
u32 rtw_aes_encrypt(_adapter *padapter, u8 *pxmitframe);
u32 rtw_tkip_encrypt(_adapter *padapter, u8 *pxmitframe);
void rtw_wep_encrypt(_adapter *padapter, u8 *pxmitframe);
u32 rtw_aes_decrypt(_adapter *padapter, u8 *precvframe);
u32 rtw_tkip_decrypt(_adapter *padapter, u8 *precvframe);
void rtw_wep_decrypt(_adapter *padapter, u8 *precvframe);
#ifdef CONFIG_IEEE80211W
u32 rtw_BIP_verify(_adapter *padapter, u8 *precvframe);
#endif //CONFIG_IEEE80211W
#ifdef CONFIG_TDLS
void wpa_tdls_generate_tpk(_adapter *padapter, PVOID sta);
int wpa_tdls_ftie_mic(u8 *kck, u8 trans_seq,
u8 *lnkid, u8 *rsnie, u8 *timeoutie, u8 *ftie,
u8 *mic);
int tdls_verify_mic(u8 *kck, u8 trans_seq,
u8 *lnkid, u8 *rsnie, u8 *timeoutie, u8 *ftie);
#endif //CONFIG_TDLS
void rtw_use_tkipkey_handler(RTW_TIMER_HDL_ARGS);
void rtw_sec_restore_wep_key(_adapter *adapter);
u8 rtw_handle_tkip_countermeasure(_adapter* adapter, const char *caller);
#endif //__RTL871X_SECURITY_H_
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