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/* SPDX-License-Identifier: GPL-2.0 */
/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
******************************************************************************/
#ifndef __RTW_SECURITY_H_
#define __RTW_SECURITY_H_
#include <crypto/arc4.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
#define _BIP_ 0x8
#define is_wep_enc(alg) (((alg) == _WEP40_) || ((alg) == _WEP104_))
const char *security_type_str(u8 value);
#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
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
};
#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_;
#else
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];
};
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 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[BIP_MAX_KEYID]; /* 802.1x Group Key, for inx0 and inx1 */
union Keytype dot118021XGrptxmickey[BIP_MAX_KEYID];
union Keytype dot118021XGrprxmickey[BIP_MAX_KEYID];
union pn48 dot11Grptxpn; /* PN48 used for Grp Key xmit. */
union pn48 dot11Grprxpn; /* PN48 used for Grp Key recv. */
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. */
/* 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;
u8 wps_ie[MAX_WPS_IE_LEN];/* added in assoc req */
int wps_ie_len;
struct arc4_ctx xmit_arc4_ctx;
struct arc4_ctx recv_arc4_ctx;
u8 binstallGrpkey;
u8 binstallBIPkey;
u8 busetkipkey;
/* _timer 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. */
/* keeps the auth_type & enc_status from upper layer ioctl(wpa_supplicant or wzc) */
u32 ndisauthtype; /* enum ndis_802_11_authentication_mode */
u32 ndisencryptstatus; /* NDIS_802_11_ENCRYPTION_STATUS */
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 */
unsigned long 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]; /* Renamed from PreAuthKey[NUM_PRE_AUTH_KEY]. Annie, 2006-10-13. */
u8 PMKIDIndex;
u8 bWepDefaultKeyIdxSet;
};
#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 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 */
};
/* ===== start - public domain SHA256 implementation ===== */
/* This is based on SHA256 implementation in LibTomCrypt that was released into
* public domain by Tom St Denis. */
int omac1_aes_128(u8 *key, u8 *data, size_t data_len, u8 *mac);
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(struct adapter *padapter, u8 *pxmitframe);
u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe);
void rtw_wep_encrypt(struct adapter *padapter, u8 *pxmitframe);
u32 rtw_aes_decrypt(struct adapter *padapter, u8 *precvframe);
u32 rtw_tkip_decrypt(struct adapter *padapter, u8 *precvframe);
void rtw_wep_decrypt(struct adapter *padapter, u8 *precvframe);
u32 rtw_BIP_verify(struct adapter *padapter, u8 *precvframe);
void rtw_sec_restore_wep_key(struct adapter *adapter);
u8 rtw_handle_tkip_countermeasure(struct adapter *adapter, const char *caller);
#endif /* __RTL871X_SECURITY_H_ */
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