/drivers/staging/rtl8712/rtl871x_security.h

  1#ifndef __RTL871X_SECURITY_H_
  2#define __RTL871X_SECURITY_H_
  3
  4#include "osdep_service.h"
  5#include "drv_types.h"
  6
  7#define _NO_PRIVACY_	0x0
  8#define _WEP40_		0x1
  9#define _TKIP_		0x2
 10#define _TKIP_WTMIC_	0x3
 11#define _AES_		0x4
 12#define _WEP104_	0x5
 13
 14#define _WPA_IE_ID_	0xdd
 15#define _WPA2_IE_ID_	0x30
 16
 17#ifndef Ndis802_11AuthModeWPA2
 18#define Ndis802_11AuthModeWPA2 (Ndis802_11AuthModeWPANone + 1)
 19#endif
 20
 21#ifndef Ndis802_11AuthModeWPA2PSK
 22#define Ndis802_11AuthModeWPA2PSK (Ndis802_11AuthModeWPANone + 2)
 23#endif
 24
 25union pn48 {
 26	u64 val;
 27#if defined(__BIG_ENDIAN)
 28	struct {
 29		u8 TSC7;
 30		u8 TSC6;
 31		u8 TSC5;
 32		u8 TSC4;
 33		u8 TSC3;
 34		u8 TSC2;
 35		u8 TSC1;
 36		u8 TSC0;
 37	} _byte_;
 38#else
 39	struct {
 40		u8 TSC0;
 41		u8 TSC1;
 42		u8 TSC2;
 43		u8 TSC3;
 44		u8 TSC4;
 45		u8 TSC5;
 46		u8 TSC6;
 47		u8 TSC7;
 48	} _byte_;
 49#endif
 50};
 51
 52union Keytype {
 53	u8 skey[16];
 54	u32 lkey[4];
 55};
 56
 57struct RT_PMKID_LIST {
 58	u8 bUsed;
 59	u8 Bssid[6];
 60	u8 PMKID[16];
 61	u8 SsidBuf[33];
 62	u8 *ssid_octet;
 63	u16 ssid_length;
 64};
 65
 66struct security_priv {
 67	u32 AuthAlgrthm;		/* 802.11 auth, could be open, shared,
 68					 * 8021x and authswitch */
 69	u32 PrivacyAlgrthm;		/* This specify the privacy for shared
 70					 * auth. algorithm. */
 71	u32 PrivacyKeyIndex;		/* this is only valid for legendary
 72					 * wep, 0~3 for key id. */
 73	union Keytype DefKey[4];	/* this is only valid for def. key */
 74	u32 DefKeylen[4];
 75	u32 XGrpPrivacy;		/* This specify the privacy algthm.
 76					 * used for Grp key */
 77	u32 XGrpKeyid;			/* key id used for Grp Key */
 78	union Keytype	XGrpKey[2];	/* 802.1x Group Key, for
 79					 * inx0 and inx1 */
 80	union Keytype	XGrptxmickey[2];
 81	union Keytype	XGrprxmickey[2];
 82	union pn48 Grptxpn;		/* PN48 used for Grp Key xmit. */
 83	union pn48 Grprxpn;		/* PN48 used for Grp Key recv. */
 84	u8 wps_hw_pbc_pressed;/*for hw pbc pressed*/
 85	u8 wps_phase;/*for wps*/
 86	u8 wps_ie[MAX_WPA_IE_LEN<<2];
 87	int wps_ie_len;
 88	u8	binstallGrpkey;
 89	u8	busetkipkey;
 90	struct timer_list tkip_timer;
 91	u8	bcheck_grpkey;
 92	u8	bgrpkey_handshake;
 93	s32	sw_encrypt;	/* from registry_priv */
 94	s32	sw_decrypt;	/* from registry_priv */
 95	s32	hw_decrypted;	/* if the rx packets is hw_decrypted==false,
 96				 * it means the hw has not been ready. */
 97	u32 ndisauthtype;	/* keeps the auth_type & enc_status from upper
 98				 * layer ioctl(wpa_supplicant or wzc) */
 99	u32 ndisencryptstatus;
100	struct wlan_bssid_ex sec_bss;  /* for joinbss (h2c buffer) usage */
101	struct NDIS_802_11_WEP ndiswep;
102	u8 assoc_info[600];
103	u8 szofcapability[256]; /* for wpa2 usage */
104	u8 oidassociation[512]; /* for wpa/wpa2 usage */
105	u8 authenticator_ie[256];  /* store ap security information element */
106	u8 supplicant_ie[256];  /* store sta security information element */
107	/* for tkip countermeasure */
108	u32 last_mic_err_time;
109	u8	btkip_countermeasure;
110	u8	btkip_wait_report;
111	u32 btkip_countermeasure_time;
112	/*-------------------------------------------------------------------
113	 * For WPA2 Pre-Authentication.
114	 *------------------------------------------------------------------ */
115	struct RT_PMKID_LIST		PMKIDList[NUM_PMKID_CACHE];
116	u8				PMKIDIndex;
117};
118
119#define GET_ENCRY_ALGO(psecuritypriv, psta, encry_algo, bmcst) \
120do { \
121	switch (psecuritypriv->AuthAlgrthm) { \
122	case 0: \
123	case 1: \
124	case 3: \
125		encry_algo = (u8)psecuritypriv->PrivacyAlgrthm; \
126		break; \
127	case 2: \
128		if (bmcst) \
129			encry_algo = (u8)psecuritypriv->XGrpPrivacy; \
130		else \
131			encry_algo = (u8)psta->XPrivacy; \
132		break; \
133	} \
134} while (0)
135#define SET_ICE_IV_LEN(iv_len, icv_len, encrypt)\
136do {\
137	switch (encrypt) { \
138	case _WEP40_: \
139	case _WEP104_: \
140		iv_len = 4; \
141		icv_len = 4; \
142		break; \
143	case _TKIP_: \
144		iv_len = 8; \
145		icv_len = 4; \
146		break; \
147	case _AES_: \
148		iv_len = 8; \
149		icv_len = 8; \
150		break; \
151	default: \
152		iv_len = 0; \
153		icv_len = 0; \
154		break; \
155	} \
156} while (0)
157#define GET_TKIP_PN(iv, txpn) \
158do {\
159	txpn._byte_.TSC0 = iv[2];\
160	txpn._byte_.TSC1 = iv[0];\
161	txpn._byte_.TSC2 = iv[4];\
162	txpn._byte_.TSC3 = iv[5];\
163	txpn._byte_.TSC4 = iv[6];\
164	txpn._byte_.TSC5 = iv[7];\
165} while (0)
166
167#define ROL32(A, n) (((A) << (n)) | (((A)>>(32-(n)))  & ((1UL << (n)) - 1)))
168#define ROR32(A, n) ROL32((A), 32 - (n))
169
170struct mic_data {
171	u32  K0, K1;         /* Key */
172	u32  L, R;           /* Current state */
173	u32  M;              /* Message accumulator (single word) */
174	u32  nBytesInM;      /* # bytes in M */
175};
176
177void seccalctkipmic(
178	u8  *key,
179	u8  *header,
180	u8  *data,
181	u32  data_len,
182	u8  *Miccode,
183	u8   priority);
184
185void r8712_secmicsetkey(struct mic_data *pmicdata, u8 * key);
186void r8712_secmicappend(struct mic_data *pmicdata, u8 * src, u32 nBytes);
187void r8712_secgetmic(struct mic_data *pmicdata, u8 * dst);
188u32 r8712_aes_encrypt(struct _adapter *padapter, u8 *pxmitframe);
189u32 r8712_tkip_encrypt(struct _adapter *padapter, u8 *pxmitframe);
190void r8712_wep_encrypt(struct _adapter *padapter, u8  *pxmitframe);
191u32 r8712_aes_decrypt(struct _adapter *padapter, u8  *precvframe);
192u32 r8712_tkip_decrypt(struct _adapter *padapter, u8  *precvframe);
193void r8712_wep_decrypt(struct _adapter *padapter, u8  *precvframe);
194void r8712_use_tkipkey_handler(void *FunctionContext);
195
196#endif	/*__RTL871X_SECURITY_H_ */
197