rtl8723cs/include/rtw_wapi.h

#ifndef __INC_WAPI_H
#define __INC_WAPI_H


#define CONFIG_WAPI_SW_SMS4
#define WAPI_DEBUG

#define SMS4_MIC_LEN                16
#define WAPI_EXT_LEN                18
#define MAX_WAPI_IE_LEN		    256
#define sMacHdrLng				24		// octets in data header, no WEP

#ifdef WAPI_DEBUG

/* WAPI trace debug */
extern u32 wapi_debug_component;

static inline void dump_buf(u8 *buf, u32 len)
{
	u32 i;
	printk("-----------------Len %d----------------\n", len);
	for(i=0; i<len; i++)
		printk("%2.2x-", *(buf+i));
	printk("\n");
}

#define WAPI_TRACE(component, x, args...) \
do { if(wapi_debug_component & (component)) \
	printk(KERN_DEBUG "WAPI" ":" x "" , \
	       ##args);\
}while(0);

#define WAPI_DATA(component, x, buf, len) \
do { if(wapi_debug_component & (component)){ \
	printk("%s:\n", x);\
	dump_buf((buf), (len));}\
}while(0);

#define RT_ASSERT_RET(_Exp)								\
		if(!(_Exp))									\
		{											\
			printk("RTWLAN: ");					\
                	printk( "Assertion failed! %s,%s,line=%d\n", \
                	#_Exp,__FUNCTION__,__LINE__);          \
			return;						\
		}
#define RT_ASSERT_RET_VALUE(_Exp,Ret)								\
		if(!(_Exp))									\
		{											\
			printk("RTWLAN: ");					\
                	printk( "Assertion failed! %s,%s,line=%d\n", \
                	#_Exp,__FUNCTION__,__LINE__);          \
			return (Ret);						\
		}

#else
#define RT_ASSERT_RET(_Exp) do {} while(0)
#define RT_ASSERT_RET_VALUE(_Exp,Ret) do {} while(0)
#define WAPI_TRACE(component, x, args...) do {} while(0)
#define WAPI_DATA(component, x, buf, len) do {} while(0)
#endif


enum WAPI_DEBUG {
	WAPI_INIT				= 1,
	WAPI_API				= 1<<1,
	WAPI_TX				= 1<<2,
	WAPI_RX				= 1<<3,
	WAPI_MLME				= 1<<4,
	WAPI_IOCTL				= 1<<5,
	WAPI_ERR		        	= 1<<31
};

#define			WAPI_MAX_BKID_NUM				4
#define			WAPI_MAX_STAINFO_NUM			4
#define			WAPI_CAM_ENTRY_NUM			14	// 28/2=14

typedef struct  _RT_WAPI_BKID
{
	struct list_head	list;
	u8				bkid[16];
}RT_WAPI_BKID,*PRT_WAPI_BKID;

typedef struct  _RT_WAPI_KEY
{
	u8			dataKey[16];
	u8			micKey[16];
	u8			keyId;
	bool			bSet;
	bool             bTxEnable;
}RT_WAPI_KEY,*PRT_WAPI_KEY;

typedef enum _RT_WAPI_PACKET_TYPE
{
	WAPI_NONE = 0,
	WAPI_PREAUTHENTICATE=1,
	WAPI_STAKEY_REQUEST=2,
	WAPI_AUTHENTICATE_ACTIVE=3,
	WAPI_ACCESS_AUTHENTICATE_REQUEST=4,
	WAPI_ACCESS_AUTHENTICATE_RESPONSE=5,
	WAPI_CERTIFICATE_AUTHENTICATE_REQUEST=6,
	WAPI_CERTIFICATE_AUTHENTICATE_RESPONSE=7,
	WAPI_USK_REQUEST=8,
	WAPI_USK_RESPONSE=9,
	WAPI_USK_CONFIRM=10,
	WAPI_MSK_NOTIFICATION=11,
	WAPI_MSK_RESPONSE=12
}RT_WAPI_PACKET_TYPE;

typedef struct	_RT_WAPI_STA_INFO
{
	struct list_head		list;
	u8					PeerMacAddr[6];
	RT_WAPI_KEY		      wapiUsk;
	RT_WAPI_KEY		      wapiUskUpdate;
	RT_WAPI_KEY		      wapiMsk;
	RT_WAPI_KEY		      wapiMskUpdate;
	u8					lastRxUnicastPN[16];
	u8					lastTxUnicastPN[16];
	u8					lastRxMulticastPN[16];
	u8					lastRxUnicastPNBEQueue[16];
	u8					lastRxUnicastPNBKQueue[16];
	u8					lastRxUnicastPNVIQueue[16];
	u8					lastRxUnicastPNVOQueue[16];
	bool					bSetkeyOk;
	bool					bAuthenticateInProgress;
	bool					bAuthenticatorInUpdata;
}RT_WAPI_STA_INFO,*PRT_WAPI_STA_INFO;

//Added for HW wapi en/decryption
typedef struct _RT_WAPI_CAM_ENTRY{
	//RT_LIST_ENTRY		list;
	u8			IsUsed;
	u8			entry_idx;//for cam entry
	u8			keyidx;	// 0 or 1,new or old key
	u8			PeerMacAddr[6];
	u8			type;	//should be 110,wapi
}RT_WAPI_CAM_ENTRY,*PRT_WAPI_CAM_ENTRY;

typedef struct _RT_WAPI_T
{
//BKID
	RT_WAPI_BKID		wapiBKID[WAPI_MAX_BKID_NUM];
	struct list_head		wapiBKIDIdleList;
	struct list_head  		wapiBKIDStoreList;
//Key for Tx Multicast/Broadcast
	RT_WAPI_KEY		      wapiTxMsk;

//sec related
	u8				lastTxMulticastPN[16];
//STA list
	RT_WAPI_STA_INFO	wapiSta[WAPI_MAX_STAINFO_NUM];
	struct list_head		wapiSTAIdleList;
	struct list_head		wapiSTAUsedList;
//
	bool				bWapiEnable;

//store WAPI IE
	u8				wapiIE[256];
	u8				wapiIELength;
	bool				bWapiPSK;
//last sequece number for wai packet
	u16				wapiSeqnumAndFragNum;
	int extra_prefix_len;
	int extra_postfix_len;

	RT_WAPI_CAM_ENTRY	wapiCamEntry[WAPI_CAM_ENTRY_NUM];
}RT_WAPI_T,*PRT_WAPI_T;

typedef struct _WLAN_HEADER_WAPI_EXTENSION
{
    u8      KeyIdx;
    u8      Reserved;
    u8      PN[16];
} WLAN_HEADER_WAPI_EXTENSION, *PWLAN_HEADER_WAPI_EXTENSION;

u32 WapiComparePN(u8 *PN1, u8 *PN2);


void rtw_wapi_init(_adapter *padapter);

void rtw_wapi_free(_adapter *padapter);

void rtw_wapi_disable_tx(_adapter *padapter);

u8 rtw_wapi_is_wai_packet(_adapter* padapter,u8 *pkt_data);

void rtw_wapi_update_info(_adapter *padapter, union recv_frame *precv_frame);

u8 rtw_wapi_check_for_drop(_adapter *padapter, union recv_frame *precv_frame);

void rtw_build_probe_resp_wapi_ie(_adapter *padapter, unsigned char *pframe, struct pkt_attrib *pattrib);

void rtw_build_beacon_wapi_ie(_adapter *padapter, unsigned char *pframe, struct pkt_attrib *pattrib);

void rtw_build_assoc_req_wapi_ie(_adapter *padapter, unsigned char *pframe, struct pkt_attrib *pattrib);

void rtw_wapi_on_assoc_ok(_adapter *padapter, PNDIS_802_11_VARIABLE_IEs pIE);

void rtw_wapi_return_one_sta_info(_adapter *padapter, u8 *MacAddr);

void rtw_wapi_return_all_sta_info(_adapter *padapter);

void rtw_wapi_clear_cam_entry(_adapter *padapter, u8 *pMacAddr);

void rtw_wapi_clear_all_cam_entry(_adapter *padapter);

void rtw_wapi_set_key(_adapter *padapter, RT_WAPI_KEY *pWapiKey, RT_WAPI_STA_INFO *pWapiSta, u8 bGroupKey, u8 bUseDefaultKey);

int rtw_wapi_create_event_send(_adapter *padapter, u8 EventId, u8 *MacAddr, u8 *Buff, u16 BufLen);

u32	rtw_sms4_encrypt(_adapter *padapter, u8 *pxmitframe);

u32	rtw_sms4_decrypt(_adapter *padapter, u8 *precvframe);

void rtw_wapi_get_iv(_adapter *padapter, u8*pRA, u8*IV);

u8 WapiIncreasePN(u8 *PN, u8 AddCount);

bool rtw_wapi_drop_for_key_absent(_adapter *padapter,u8 *pRA);

#endif