/******************************************************************************
 *
 * Copyright(c) 2007 - 2017 Realtek Corporation.
 *
 * 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.
 *
 *****************************************************************************/
#define  _RTW_SECURITY_C_

#include <drv_types.h>
#include <rtw_swcrypto.h>

static const char *_security_type_str[] = {
	"N/A",
	"WEP40",
	"TKIP",
	"TKIP_WM",
	"AES",
	"WEP104",
	"SMS4",
	"GCMP",
};

static const char *_security_type_bip_str[] = {
	"BIP_CMAC_128",
	"BIP_GMAC_128",
	"BIP_GMAC_256",
	"BIP_CMAC_256",
};

const char *security_type_str(u8 value)
{
#ifdef CONFIG_IEEE80211W
	if ((_BIP_MAX_ > value) && (value >= _BIP_CMAC_128_))
		return _security_type_bip_str[value & ~_SEC_TYPE_BIT_];
#endif

	if (_CCMP_256_ == value)
		return "CCMP_256";
	if (_GCMP_256_ == value)
		return "GCMP_256";

	if (_SEC_TYPE_MAX_ > value)
		return _security_type_str[value];

	return NULL;
}

#ifdef CONFIG_IEEE80211W
u32 security_type_bip_to_gmcs(enum security_type type)
{
	switch (type) {
	case _BIP_CMAC_128_:
		return WPA_CIPHER_BIP_CMAC_128;
	case _BIP_GMAC_128_:
		return WPA_CIPHER_BIP_GMAC_128;
	case _BIP_GMAC_256_:
		return WPA_CIPHER_BIP_GMAC_256;
	case _BIP_CMAC_256_:
		return WPA_CIPHER_BIP_CMAC_256;
	default:
		return 0;
	}
}
#endif

#ifdef DBG_SW_SEC_CNT
#define WEP_SW_ENC_CNT_INC(sec, ra) do {\
	if (is_broadcast_mac_addr(ra)) \
		sec->wep_sw_enc_cnt_bc++; \
	else if (is_multicast_mac_addr(ra)) \
		sec->wep_sw_enc_cnt_mc++; \
	else \
		sec->wep_sw_enc_cnt_uc++; \
	} while (0)

#define WEP_SW_DEC_CNT_INC(sec, ra) do {\
	if (is_broadcast_mac_addr(ra)) \
		sec->wep_sw_dec_cnt_bc++; \
	else if (is_multicast_mac_addr(ra)) \
		sec->wep_sw_dec_cnt_mc++; \
	else \
		sec->wep_sw_dec_cnt_uc++; \
	} while (0)

#define TKIP_SW_ENC_CNT_INC(sec, ra) do {\
	if (is_broadcast_mac_addr(ra)) \
		sec->tkip_sw_enc_cnt_bc++; \
	else if (is_multicast_mac_addr(ra)) \
		sec->tkip_sw_enc_cnt_mc++; \
	else \
		sec->tkip_sw_enc_cnt_uc++; \
	} while (0)

#define TKIP_SW_DEC_CNT_INC(sec, ra) do {\
	if (is_broadcast_mac_addr(ra)) \
		sec->tkip_sw_dec_cnt_bc++; \
	else if (is_multicast_mac_addr(ra)) \
		sec->tkip_sw_dec_cnt_mc++; \
	else \
		sec->tkip_sw_dec_cnt_uc++; \
	} while (0)

#define AES_SW_ENC_CNT_INC(sec, ra) do {\
	if (is_broadcast_mac_addr(ra)) \
		sec->aes_sw_enc_cnt_bc++; \
	else if (is_multicast_mac_addr(ra)) \
		sec->aes_sw_enc_cnt_mc++; \
	else \
		sec->aes_sw_enc_cnt_uc++; \
	} while (0)

#define AES_SW_DEC_CNT_INC(sec, ra) do {\
	if (is_broadcast_mac_addr(ra)) \
		sec->aes_sw_dec_cnt_bc++; \
	else if (is_multicast_mac_addr(ra)) \
		sec->aes_sw_dec_cnt_mc++; \
	else \
		sec->aes_sw_dec_cnt_uc++; \
	} while (0)

#define GCMP_SW_ENC_CNT_INC(sec, ra) do {\
	if (is_broadcast_mac_addr(ra)) \
		sec->gcmp_sw_enc_cnt_bc++; \
	else if (is_multicast_mac_addr(ra)) \
		sec->gcmp_sw_enc_cnt_mc++; \
	else \
		sec->gcmp_sw_enc_cnt_uc++; \
	} while (0)

#define GCMP_SW_DEC_CNT_INC(sec, ra) do {\
	if (is_broadcast_mac_addr(ra)) \
		sec->gcmp_sw_dec_cnt_bc++; \
	else if (is_multicast_mac_addr(ra)) \
		sec->gcmp_sw_dec_cnt_mc++; \
	else \
		sec->gcmp_sw_dec_cnt_uc++; \
	} while (0)
#else
#define WEP_SW_ENC_CNT_INC(sec, ra)
#define WEP_SW_DEC_CNT_INC(sec, ra)
#define TKIP_SW_ENC_CNT_INC(sec, ra)
#define TKIP_SW_DEC_CNT_INC(sec, ra)
#define AES_SW_ENC_CNT_INC(sec, ra)
#define AES_SW_DEC_CNT_INC(sec, ra)
#define GCMP_SW_ENC_CNT_INC(sec, ra)
#define GCMP_SW_DEC_CNT_INC(sec, ra)
#endif /* DBG_SW_SEC_CNT */

/* *****WEP related***** */

#define CRC32_POLY 0x04c11db7

struct arc4context {
	u32 x;
	u32 y;
	u8 state[256];
};


static void arcfour_init(struct arc4context	*parc4ctx, u8 *key, u32	key_len)
{
	u32	t, u;
	u32	keyindex;
	u32	stateindex;
	u8 *state;
	u32	counter;
	state = parc4ctx->state;
	parc4ctx->x = 0;
	parc4ctx->y = 0;
	for (counter = 0; counter < 256; counter++)
		state[counter] = (u8)counter;
	keyindex = 0;
	stateindex = 0;
	for (counter = 0; counter < 256; counter++) {
		t = state[counter];
		stateindex = (stateindex + key[keyindex] + t) & 0xff;
		u = state[stateindex];
		state[stateindex] = (u8)t;
		state[counter] = (u8)u;
		if (++keyindex >= key_len)
			keyindex = 0;
	}
}
static u32 arcfour_byte(struct arc4context	*parc4ctx)
{
	u32 x;
	u32 y;
	u32 sx, sy;
	u8 *state;
	state = parc4ctx->state;
	x = (parc4ctx->x + 1) & 0xff;
	sx = state[x];
	y = (sx + parc4ctx->y) & 0xff;
	sy = state[y];
	parc4ctx->x = x;
	parc4ctx->y = y;
	state[y] = (u8)sx;
	state[x] = (u8)sy;
	return state[(sx + sy) & 0xff];
}


static void arcfour_encrypt(struct arc4context	*parc4ctx,
			    u8 *dest,
			    u8 *src,
			    u32 len)
{
	u32	i;
	for (i = 0; i < len; i++)
		dest[i] = src[i] ^ (unsigned char)arcfour_byte(parc4ctx);
}

static sint bcrc32initialized = 0;
static u32 crc32_table[256];


static u8 crc32_reverseBit(u8 data)
{
	return (u8)((data << 7) & 0x80) | ((data << 5) & 0x40) | ((data << 3) & 0x20) | ((data << 1) & 0x10) | ((data >> 1) & 0x08) | ((data >> 3) & 0x04) | ((data >> 5) & 0x02) | ((
				data >> 7) & 0x01) ;
}

static void crc32_init(void)
{
	if (bcrc32initialized == 1)
		goto exit;
	else {
		sint i, j;
		u32 c;
		u8 *p = (u8 *)&c, *p1;
		u8 k;

		c = 0x12340000;

		for (i = 0; i < 256; ++i) {
			k = crc32_reverseBit((u8)i);
			for (c = ((u32)k) << 24, j = 8; j > 0; --j)
				c = c & 0x80000000 ? (c << 1) ^ CRC32_POLY : (c << 1);
			p1 = (u8 *)&crc32_table[i];

			p1[0] = crc32_reverseBit(p[3]);
			p1[1] = crc32_reverseBit(p[2]);
			p1[2] = crc32_reverseBit(p[1]);
			p1[3] = crc32_reverseBit(p[0]);
		}
		bcrc32initialized = 1;
	}
exit:
	return;
}

static u32 getcrc32(u8 *buf, sint len)
{
	u8 *p;
	u32  crc;
	if (bcrc32initialized == 0)
		crc32_init();

	crc = 0xffffffff;       /* preload shift register, per CRC-32 spec */

	for (p = buf; len > 0; ++p, --len)
		crc = crc32_table[(crc ^ *p) & 0xff] ^ (crc >> 8);
	return ~crc;    /* transmit complement, per CRC-32 spec */
}


/*
	Need to consider the fragment  situation
*/
void rtw_wep_encrypt(_adapter *padapter, u8 *pxmitframe)
{
	/* exclude ICV */

	unsigned char	crc[4];
	struct arc4context	 mycontext;

	sint	curfragnum, length;
	u32	keylength;

	u8	*pframe, *payload, *iv;   /* ,*wepkey */
	u8	wepkey[16];
	u8   hw_hdr_offset = 0;
	struct	pkt_attrib	*pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
	struct	security_priv	*psecuritypriv = &padapter->securitypriv;
	struct	xmit_priv		*pxmitpriv = &padapter->xmitpriv;



	if (((struct xmit_frame *)pxmitframe)->buf_addr == NULL)
		return;

#ifdef CONFIG_USB_TX_AGGREGATION
	hw_hdr_offset = TXDESC_SIZE +
		(((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
#else
#ifdef CONFIG_TX_EARLY_MODE
	hw_hdr_offset = TXDESC_OFFSET + EARLY_MODE_INFO_SIZE;
#else
	hw_hdr_offset = TXDESC_OFFSET;
#endif
#endif

	pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;

	/* start to encrypt each fragment */
	if ((pattrib->encrypt == _WEP40_) || (pattrib->encrypt == _WEP104_)) {
		keylength = psecuritypriv->dot11DefKeylen[psecuritypriv->dot11PrivacyKeyIndex];

		for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
			iv = pframe + pattrib->hdrlen;
			_rtw_memcpy(&wepkey[0], iv, 3);
			_rtw_memcpy(&wepkey[3], &psecuritypriv->dot11DefKey[psecuritypriv->dot11PrivacyKeyIndex].skey[0], keylength);
			payload = pframe + pattrib->iv_len + pattrib->hdrlen;

			if ((curfragnum + 1) == pattrib->nr_frags) {
				/* the last fragment */

				length = pattrib->last_txcmdsz - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;

				*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));

				arcfour_init(&mycontext, wepkey, 3 + keylength);
				arcfour_encrypt(&mycontext, payload, payload, length);
				arcfour_encrypt(&mycontext, payload + length, crc, 4);

			} else {
				length = pxmitpriv->frag_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len ;
				*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));
				arcfour_init(&mycontext, wepkey, 3 + keylength);
				arcfour_encrypt(&mycontext, payload, payload, length);
				arcfour_encrypt(&mycontext, payload + length, crc, 4);

				pframe += pxmitpriv->frag_len;
				pframe = (u8 *)RND4((SIZE_PTR)(pframe));

			}

		}

		WEP_SW_ENC_CNT_INC(psecuritypriv, pattrib->ra);
	}


}

void rtw_wep_decrypt(_adapter  *padapter, u8 *precvframe)
{
	/* exclude ICV */
	u8	crc[4];
	struct arc4context	 mycontext;
	sint	length;
	u32	keylength;
	u8	*pframe, *payload, *iv, wepkey[16];
	u8	 keyindex;
	struct	rx_pkt_attrib	*prxattrib = &(((union recv_frame *)precvframe)->u.hdr.attrib);
	struct	security_priv	*psecuritypriv = &padapter->securitypriv;


	pframe = (unsigned char *)((union recv_frame *)precvframe)->u.hdr.rx_data;

	/* start to decrypt recvframe */
	if ((prxattrib->encrypt == _WEP40_) || (prxattrib->encrypt == _WEP104_)) {
		iv = pframe + prxattrib->hdrlen;
		/* keyindex=(iv[3]&0x3); */
		keyindex = prxattrib->key_index;
		keylength = psecuritypriv->dot11DefKeylen[keyindex];
		_rtw_memcpy(&wepkey[0], iv, 3);
		/* _rtw_memcpy(&wepkey[3], &psecuritypriv->dot11DefKey[psecuritypriv->dot11PrivacyKeyIndex].skey[0],keylength); */
		_rtw_memcpy(&wepkey[3], &psecuritypriv->dot11DefKey[keyindex].skey[0], keylength);
		length = ((union recv_frame *)precvframe)->u.hdr.len - prxattrib->hdrlen - prxattrib->iv_len;

		payload = pframe + prxattrib->iv_len + prxattrib->hdrlen;

		/* decrypt payload include icv */
		arcfour_init(&mycontext, wepkey, 3 + keylength);
		arcfour_encrypt(&mycontext, payload, payload,  length);

		/* calculate icv and compare the icv */
		*((u32 *)crc) = le32_to_cpu(getcrc32(payload, length - 4));


		WEP_SW_DEC_CNT_INC(psecuritypriv, prxattrib->ra);
	}


	return;

}

/* 3		=====TKIP related===== */

static u32 secmicgetuint32(u8 *p)
/* Convert from Byte[] to Us4Byte32 in a portable way */
{
	s32 i;
	u32 res = 0;
	for (i = 0; i < 4; i++)
		res |= ((u32)(*p++)) << (8 * i);
	return res;
}

static void secmicputuint32(u8 *p, u32 val)
/* Convert from Us4Byte32 to Byte[] in a portable way */
{
	long i;
	for (i = 0; i < 4; i++) {
		*p++ = (u8)(val & 0xff);
		val >>= 8;
	}
}

static void secmicclear(struct mic_data *pmicdata)
{
	/* Reset the state to the empty message. */
	pmicdata->L = pmicdata->K0;
	pmicdata->R = pmicdata->K1;
	pmicdata->nBytesInM = 0;
	pmicdata->M = 0;
}

void rtw_secmicsetkey(struct mic_data *pmicdata, u8 *key)
{
	/* Set the key */
	pmicdata->K0 = secmicgetuint32(key);
	pmicdata->K1 = secmicgetuint32(key + 4);
	/* and reset the message */
	secmicclear(pmicdata);
}

void rtw_secmicappendbyte(struct mic_data *pmicdata, u8 b)
{
	/* Append the byte to our word-sized buffer */
	pmicdata->M |= ((unsigned long)b) << (8 * pmicdata->nBytesInM);
	pmicdata->nBytesInM++;
	/* Process the word if it is full. */
	if (pmicdata->nBytesInM >= 4) {
		pmicdata->L ^= pmicdata->M;
		pmicdata->R ^= ROL32(pmicdata->L, 17);
		pmicdata->L += pmicdata->R;
		pmicdata->R ^= ((pmicdata->L & 0xff00ff00) >> 8) | ((pmicdata->L & 0x00ff00ff) << 8);
		pmicdata->L += pmicdata->R;
		pmicdata->R ^= ROL32(pmicdata->L, 3);
		pmicdata->L += pmicdata->R;
		pmicdata->R ^= ROR32(pmicdata->L, 2);
		pmicdata->L += pmicdata->R;
		/* Clear the buffer */
		pmicdata->M = 0;
		pmicdata->nBytesInM = 0;
	}
}

void rtw_secmicappend(struct mic_data *pmicdata, u8 *src, u32 nbytes)
{
	/* This is simple */
	while (nbytes > 0) {
		rtw_secmicappendbyte(pmicdata, *src++);
		nbytes--;
	}
}

void rtw_secgetmic(struct mic_data *pmicdata, u8 *dst)
{
	/* Append the minimum padding */
	rtw_secmicappendbyte(pmicdata, 0x5a);
	rtw_secmicappendbyte(pmicdata, 0);
	rtw_secmicappendbyte(pmicdata, 0);
	rtw_secmicappendbyte(pmicdata, 0);
	rtw_secmicappendbyte(pmicdata, 0);
	/* and then zeroes until the length is a multiple of 4 */
	while (pmicdata->nBytesInM != 0)
		rtw_secmicappendbyte(pmicdata, 0);
	/* The appendByte function has already computed the result. */
	secmicputuint32(dst, pmicdata->L);
	secmicputuint32(dst + 4, pmicdata->R);
	/* Reset to the empty message. */
	secmicclear(pmicdata);
}


void rtw_seccalctkipmic(u8 *key, u8 *header, u8 *data, u32 data_len, u8 *mic_code, u8 pri)
{

	struct mic_data	micdata;
	u8 priority[4] = {0x0, 0x0, 0x0, 0x0};
	rtw_secmicsetkey(&micdata, key);
	priority[0] = pri;

	/* Michael MIC pseudo header: DA, SA, 3 x 0, Priority */
	if (header[1] & 1) { /* ToDS==1 */
		rtw_secmicappend(&micdata, &header[16], 6);  /* DA */
		if (header[1] & 2) /* From Ds==1 */
			rtw_secmicappend(&micdata, &header[24], 6);
		else
			rtw_secmicappend(&micdata, &header[10], 6);
	} else {	/* ToDS==0 */
		rtw_secmicappend(&micdata, &header[4], 6);   /* DA */
		if (header[1] & 2) /* From Ds==1 */
			rtw_secmicappend(&micdata, &header[16], 6);
		else
			rtw_secmicappend(&micdata, &header[10], 6);

	}
	rtw_secmicappend(&micdata, &priority[0], 4);


	rtw_secmicappend(&micdata, data, data_len);

	rtw_secgetmic(&micdata, mic_code);
}




/* macros for extraction/creation of unsigned char/unsigned short values */
#define RotR1(v16)   ((((v16) >> 1) & 0x7FFF) ^ (((v16) & 1) << 15))
#define   Lo8(v16)   ((u8)((v16)       & 0x00FF))
#define   Hi8(v16)   ((u8)(((v16) >> 8) & 0x00FF))
#define  Lo16(v32)   ((u16)((v32)       & 0xFFFF))
#define  Hi16(v32)   ((u16)(((v32) >> 16) & 0xFFFF))
#define  Mk16(hi, lo) ((lo) ^ (((u16)(hi)) << 8))

/* select the Nth 16-bit word of the temporal key unsigned char array TK[]  */
#define  TK16(N)     Mk16(tk[2*(N)+1], tk[2*(N)])

/* S-box lookup: 16 bits --> 16 bits */
#define _S_(v16)     (Sbox1[0][Lo8(v16)] ^ Sbox1[1][Hi8(v16)])

/* fixed algorithm "parameters" */
#define PHASE1_LOOP_CNT   8    /* this needs to be "big enough"     */
#define TA_SIZE           6    /*  48-bit transmitter address      */
#define TK_SIZE          16    /* 128-bit temporal key             */
#define P1K_SIZE         10    /*  80-bit Phase1 key               */
#define RC4_KEY_SIZE     16    /* 128-bit RC4KEY (104 bits unknown) */


/* 2-unsigned char by 2-unsigned char subset of the full AES S-box table */
static const unsigned short Sbox1[2][256] =      /* Sbox for hash (can be in ROM)    */
{ {
		0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
		0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
		0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
		0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
		0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
		0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
		0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
		0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
		0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
		0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
		0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
		0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
		0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
		0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
		0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
		0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
		0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
		0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
		0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
		0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
		0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
		0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
		0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
		0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
		0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
		0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
		0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
		0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
		0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
		0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
		0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
		0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
	},


	{  /* second half of table is unsigned char-reversed version of first! */
		0xA5C6, 0x84F8, 0x99EE, 0x8DF6, 0x0DFF, 0xBDD6, 0xB1DE, 0x5491,
		0x5060, 0x0302, 0xA9CE, 0x7D56, 0x19E7, 0x62B5, 0xE64D, 0x9AEC,
		0x458F, 0x9D1F, 0x4089, 0x87FA, 0x15EF, 0xEBB2, 0xC98E, 0x0BFB,
		0xEC41, 0x67B3, 0xFD5F, 0xEA45, 0xBF23, 0xF753, 0x96E4, 0x5B9B,
		0xC275, 0x1CE1, 0xAE3D, 0x6A4C, 0x5A6C, 0x417E, 0x02F5, 0x4F83,
		0x5C68, 0xF451, 0x34D1, 0x08F9, 0x93E2, 0x73AB, 0x5362, 0x3F2A,
		0x0C08, 0x5295, 0x6546, 0x5E9D, 0x2830, 0xA137, 0x0F0A, 0xB52F,
		0x090E, 0x3624, 0x9B1B, 0x3DDF, 0x26CD, 0x694E, 0xCD7F, 0x9FEA,
		0x1B12, 0x9E1D, 0x7458, 0x2E34, 0x2D36, 0xB2DC, 0xEEB4, 0xFB5B,
		0xF6A4, 0x4D76, 0x61B7, 0xCE7D, 0x7B52, 0x3EDD, 0x715E, 0x9713,
		0xF5A6, 0x68B9, 0x0000, 0x2CC1, 0x6040, 0x1FE3, 0xC879, 0xEDB6,
		0xBED4, 0x468D, 0xD967, 0x4B72, 0xDE94, 0xD498, 0xE8B0, 0x4A85,
		0x6BBB, 0x2AC5, 0xE54F, 0x16ED, 0xC586, 0xD79A, 0x5566, 0x9411,
		0xCF8A, 0x10E9, 0x0604, 0x81FE, 0xF0A0, 0x4478, 0xBA25, 0xE34B,
		0xF3A2, 0xFE5D, 0xC080, 0x8A05, 0xAD3F, 0xBC21, 0x4870, 0x04F1,
		0xDF63, 0xC177, 0x75AF, 0x6342, 0x3020, 0x1AE5, 0x0EFD, 0x6DBF,
		0x4C81, 0x1418, 0x3526, 0x2FC3, 0xE1BE, 0xA235, 0xCC88, 0x392E,
		0x5793, 0xF255, 0x82FC, 0x477A, 0xACC8, 0xE7BA, 0x2B32, 0x95E6,
		0xA0C0, 0x9819, 0xD19E, 0x7FA3, 0x6644, 0x7E54, 0xAB3B, 0x830B,
		0xCA8C, 0x29C7, 0xD36B, 0x3C28, 0x79A7, 0xE2BC, 0x1D16, 0x76AD,
		0x3BDB, 0x5664, 0x4E74, 0x1E14, 0xDB92, 0x0A0C, 0x6C48, 0xE4B8,
		0x5D9F, 0x6EBD, 0xEF43, 0xA6C4, 0xA839, 0xA431, 0x37D3, 0x8BF2,
		0x32D5, 0x438B, 0x596E, 0xB7DA, 0x8C01, 0x64B1, 0xD29C, 0xE049,
		0xB4D8, 0xFAAC, 0x07F3, 0x25CF, 0xAFCA, 0x8EF4, 0xE947, 0x1810,
		0xD56F, 0x88F0, 0x6F4A, 0x725C, 0x2438, 0xF157, 0xC773, 0x5197,
		0x23CB, 0x7CA1, 0x9CE8, 0x213E, 0xDD96, 0xDC61, 0x860D, 0x850F,
		0x90E0, 0x427C, 0xC471, 0xAACC, 0xD890, 0x0506, 0x01F7, 0x121C,
		0xA3C2, 0x5F6A, 0xF9AE, 0xD069, 0x9117, 0x5899, 0x273A, 0xB927,
		0x38D9, 0x13EB, 0xB32B, 0x3322, 0xBBD2, 0x70A9, 0x8907, 0xA733,
		0xB62D, 0x223C, 0x9215, 0x20C9, 0x4987, 0xFFAA, 0x7850, 0x7AA5,
		0x8F03, 0xF859, 0x8009, 0x171A, 0xDA65, 0x31D7, 0xC684, 0xB8D0,
		0xC382, 0xB029, 0x775A, 0x111E, 0xCB7B, 0xFCA8, 0xD66D, 0x3A2C,
	}
};

/*
**********************************************************************
* Routine: Phase 1 -- generate P1K, given TA, TK, IV32
*
* Inputs:
*     tk[]      = temporal key                         [128 bits]
*     ta[]      = transmitter's MAC address            [ 48 bits]
*     iv32      = upper 32 bits of IV                  [ 32 bits]
* Output:
*     p1k[]     = Phase 1 key                          [ 80 bits]
*
* Note:
*     This function only needs to be called every 2**16 packets,
*     although in theory it could be called every packet.
*
**********************************************************************
*/
static void phase1(u16 *p1k, const u8 *tk, const u8 *ta, u32 iv32)
{
	sint  i;
	/* Initialize the 80 bits of P1K[] from IV32 and TA[0..5]    */
	p1k[0]      = Lo16(iv32);
	p1k[1]      = Hi16(iv32);
	p1k[2]      = Mk16(ta[1], ta[0]); /* use TA[] as little-endian */
	p1k[3]      = Mk16(ta[3], ta[2]);
	p1k[4]      = Mk16(ta[5], ta[4]);

	/* Now compute an unbalanced Feistel cipher with 80-bit block */
	/* size on the 80-bit block P1K[], using the 128-bit key TK[] */
	for (i = 0; i < PHASE1_LOOP_CNT ; i++) {
		/* Each add operation here is mod 2**16 */
		p1k[0] += _S_(p1k[4] ^ TK16((i & 1) + 0));
		p1k[1] += _S_(p1k[0] ^ TK16((i & 1) + 2));
		p1k[2] += _S_(p1k[1] ^ TK16((i & 1) + 4));
		p1k[3] += _S_(p1k[2] ^ TK16((i & 1) + 6));
		p1k[4] += _S_(p1k[3] ^ TK16((i & 1) + 0));
		p1k[4] += (unsigned short)i;                     /* avoid "slide attacks" */
	}
}


/*
**********************************************************************
* Routine: Phase 2 -- generate RC4KEY, given TK, P1K, IV16
*
* Inputs:
*     tk[]      = Temporal key                         [128 bits]
*     p1k[]     = Phase 1 output key                   [ 80 bits]
*     iv16      = low 16 bits of IV counter            [ 16 bits]
* Output:
*     rc4key[]  = the key used to encrypt the packet   [128 bits]
*
* Note:
*     The value {TA,IV32,IV16} for Phase1/Phase2 must be unique
*     across all packets using the same key TK value. Then, for a
*     given value of TK[], this TKIP48 construction guarantees that
*     the final RC4KEY value is unique across all packets.
*
* Suggested implementation optimization: if PPK[] is "overlaid"
*     appropriately on RC4KEY[], there is no need for the final
*     for loop below that copies the PPK[] result into RC4KEY[].
*
**********************************************************************
*/
static void phase2(u8 *rc4key, const u8 *tk, const u16 *p1k, u16 iv16)
{
	sint  i;
	u16 PPK[6];                          /* temporary key for mixing   */
	/* Note: all adds in the PPK[] equations below are mod 2**16        */
	for (i = 0; i < 5; i++)
		PPK[i] = p1k[i];    /* first, copy P1K to PPK     */
	PPK[5]  =  p1k[4] + iv16;            /* next,  add in IV16         */

	/* Bijective non-linear mixing of the 96 bits of PPK[0..5]          */
	PPK[0] +=    _S_(PPK[5] ^ TK16(0));   /* Mix key in each "round"     */
	PPK[1] +=    _S_(PPK[0] ^ TK16(1));
	PPK[2] +=    _S_(PPK[1] ^ TK16(2));
	PPK[3] +=    _S_(PPK[2] ^ TK16(3));
	PPK[4] +=    _S_(PPK[3] ^ TK16(4));
	PPK[5] +=    _S_(PPK[4] ^ TK16(5));   /* Total # S-box lookups == 6 */

	/* Final sweep: bijective, "linear". Rotates kill LSB correlations   */
	PPK[0] +=  RotR1(PPK[5] ^ TK16(6));
	PPK[1] +=  RotR1(PPK[0] ^ TK16(7));   /* Use all of TK[] in Phase2  */
	PPK[2] +=  RotR1(PPK[1]);
	PPK[3] +=  RotR1(PPK[2]);
	PPK[4] +=  RotR1(PPK[3]);
	PPK[5] +=  RotR1(PPK[4]);
	/* Note: At this point, for a given key TK[0..15], the 96-bit output */
	/*       value PPK[0..5] is guaranteed to be unique, as a function  */
	/*       of the 96-bit "input" value   {TA,IV32,IV16}. That is, P1K  */
	/*       is now a keyed permutation of {TA,IV32,IV16}.              */

	/* Set RC4KEY[0..3], which includes "cleartext" portion of RC4 key   */
	rc4key[0] = Hi8(iv16);                /* RC4KEY[0..2] is the WEP IV */
	rc4key[1] = (Hi8(iv16) | 0x20) & 0x7F; /* Help avoid weak (FMS) keys */
	rc4key[2] = Lo8(iv16);
	rc4key[3] = Lo8((PPK[5] ^ TK16(0)) >> 1);


	/* Copy 96 bits of PPK[0..5] to RC4KEY[4..15]  (little-endian)      */
	for (i = 0; i < 6; i++) {
		rc4key[4 + 2 * i] = Lo8(PPK[i]);
		rc4key[5 + 2 * i] = Hi8(PPK[i]);
	}
}


/* The hlen isn't include the IV */
u32	rtw_tkip_encrypt(_adapter *padapter, u8 *pxmitframe)
{
	/* exclude ICV */
	u16	pnl;
	u32	pnh;
	u8	rc4key[16];
	u8   ttkey[16];
	u8	crc[4];
	u8   hw_hdr_offset = 0;
	struct arc4context mycontext;
	sint			curfragnum, length;
	u32	prwskeylen;

	u8	*pframe, *payload, *iv, *prwskey;
	union pn48 dot11txpn;
	/* struct	sta_info		*stainfo; */
	struct	pkt_attrib	*pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
	struct	security_priv	*psecuritypriv = &padapter->securitypriv;
	struct	xmit_priv		*pxmitpriv = &padapter->xmitpriv;
	u32	res = _SUCCESS;

	if (((struct xmit_frame *)pxmitframe)->buf_addr == NULL)
		return _FAIL;

#ifdef CONFIG_USB_TX_AGGREGATION
	hw_hdr_offset = TXDESC_SIZE +
		(((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
#else
#ifdef CONFIG_TX_EARLY_MODE
	hw_hdr_offset = TXDESC_OFFSET + EARLY_MODE_INFO_SIZE;
#else
	hw_hdr_offset = TXDESC_OFFSET;
#endif
#endif

	pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;
	/* 4 start to encrypt each fragment */
	if (pattrib->encrypt == _TKIP_) {

		/*
				if(pattrib->psta)
				{
					stainfo = pattrib->psta;
				}
				else
				{
					RTW_INFO("%s, call rtw_get_stainfo()\n", __func__);
					stainfo=rtw_get_stainfo(&padapter->stapriv ,&pattrib->ra[0] );
				}
		*/
		/* if (stainfo!=NULL) */
		{
			/*
						if(!(stainfo->state &WIFI_ASOC_STATE))
						{
							RTW_INFO("%s, psta->state(0x%x) != WIFI_ASOC_STATE\n", __func__, stainfo->state);
							return _FAIL;
						}
			*/

			if (IS_MCAST(pattrib->ra))
				prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
			else {
				/* prwskey=&stainfo->dot118021x_UncstKey.skey[0]; */
				prwskey = pattrib->dot118021x_UncstKey.skey;
			}

			prwskeylen = 16;

			for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
				iv = pframe + pattrib->hdrlen;
				payload = pframe + pattrib->iv_len + pattrib->hdrlen;

				GET_TKIP_PN(iv, dot11txpn);

				pnl = (u16)(dot11txpn.val);
				pnh = (u32)(dot11txpn.val >> 16);

				phase1((u16 *)&ttkey[0], prwskey, &pattrib->ta[0], pnh);

				phase2(&rc4key[0], prwskey, (u16 *)&ttkey[0], pnl);

				if ((curfragnum + 1) == pattrib->nr_frags) {	/* 4 the last fragment */
					length = pattrib->last_txcmdsz - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;
					*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length)); /* modified by Amy*/

					arcfour_init(&mycontext, rc4key, 16);
					arcfour_encrypt(&mycontext, payload, payload, length);
					arcfour_encrypt(&mycontext, payload + length, crc, 4);

				} else {
					length = pxmitpriv->frag_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len ;
					*((u32 *)crc) = cpu_to_le32(getcrc32(payload, length)); /* modified by Amy*/
					arcfour_init(&mycontext, rc4key, 16);
					arcfour_encrypt(&mycontext, payload, payload, length);
					arcfour_encrypt(&mycontext, payload + length, crc, 4);

					pframe += pxmitpriv->frag_len;
					pframe = (u8 *)RND4((SIZE_PTR)(pframe));

				}
			}

			TKIP_SW_ENC_CNT_INC(psecuritypriv, pattrib->ra);
		}
		/*
				else{
					RTW_INFO("%s, psta==NUL\n", __func__);
					res=_FAIL;
				}
		*/

	}
	return res;

}


/* The hlen isn't include the IV */
u32 rtw_tkip_decrypt(_adapter *padapter, u8 *precvframe)
{
	/* exclude ICV */
	u16 pnl;
	u32 pnh;
	u8   rc4key[16];
	u8   ttkey[16];
	u8	crc[4];
	struct arc4context mycontext;
	sint			length;
	u32	prwskeylen;

	u8	*pframe, *payload, *iv, *prwskey;
	union pn48 dot11txpn;
	struct	sta_info		*stainfo;
	struct	rx_pkt_attrib	*prxattrib = &((union recv_frame *)precvframe)->u.hdr.attrib;
	struct	security_priv	*psecuritypriv = &padapter->securitypriv;
	/*	struct	recv_priv		*precvpriv=&padapter->recvpriv; */
	u32		res = _SUCCESS;


	pframe = (unsigned char *)((union recv_frame *)precvframe)->u.hdr.rx_data;

	/* 4 start to decrypt recvframe */
	if (prxattrib->encrypt == _TKIP_) {

		stainfo = rtw_get_stainfo(&padapter->stapriv , &prxattrib->ta[0]);
		if (stainfo != NULL) {

			if (IS_MCAST(prxattrib->ra)) {
				static systime start = 0;
				static u32 no_gkey_bc_cnt = 0;
				static u32 no_gkey_mc_cnt = 0;

				if (psecuritypriv->binstallGrpkey == _FALSE) {
					res = _FAIL;

					if (start == 0)
						start = rtw_get_current_time();

					if (is_broadcast_mac_addr(prxattrib->ra))
						no_gkey_bc_cnt++;
					else
						no_gkey_mc_cnt++;

					if (rtw_get_passing_time_ms(start) > 1000) {
						if (no_gkey_bc_cnt || no_gkey_mc_cnt) {
							RTW_PRINT(FUNC_ADPT_FMT" no_gkey_bc_cnt:%u, no_gkey_mc_cnt:%u\n",
								FUNC_ADPT_ARG(padapter), no_gkey_bc_cnt, no_gkey_mc_cnt);
						}
						start = rtw_get_current_time();
						no_gkey_bc_cnt = 0;
						no_gkey_mc_cnt = 0;
					}
					goto exit;
				}

				if (no_gkey_bc_cnt || no_gkey_mc_cnt) {
					RTW_PRINT(FUNC_ADPT_FMT" gkey installed. no_gkey_bc_cnt:%u, no_gkey_mc_cnt:%u\n",
						FUNC_ADPT_ARG(padapter), no_gkey_bc_cnt, no_gkey_mc_cnt);
				}
				start = 0;
				no_gkey_bc_cnt = 0;
				no_gkey_mc_cnt = 0;

				/* RTW_INFO("rx bc/mc packets, to perform sw rtw_tkip_decrypt\n"); */
				/* prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey; */
				prwskey = psecuritypriv->dot118021XGrpKey[prxattrib->key_index].skey;
				prwskeylen = 16;
			} else {
				prwskey = &stainfo->dot118021x_UncstKey.skey[0];
				prwskeylen = 16;
			}

			iv = pframe + prxattrib->hdrlen;
			payload = pframe + prxattrib->iv_len + prxattrib->hdrlen;
			length = ((union recv_frame *)precvframe)->u.hdr.len - prxattrib->hdrlen - prxattrib->iv_len;

			GET_TKIP_PN(iv, dot11txpn);

			pnl = (u16)(dot11txpn.val);
			pnh = (u32)(dot11txpn.val >> 16);

			phase1((u16 *)&ttkey[0], prwskey, &prxattrib->ta[0], pnh);
			phase2(&rc4key[0], prwskey, (unsigned short *)&ttkey[0], pnl);

			/* 4 decrypt payload include icv */

			arcfour_init(&mycontext, rc4key, 16);
			arcfour_encrypt(&mycontext, payload, payload, length);

			*((u32 *)crc) = le32_to_cpu(getcrc32(payload, length - 4));

			if (crc[3] != payload[length - 1] || crc[2] != payload[length - 2] || crc[1] != payload[length - 3] || crc[0] != payload[length - 4]) {
				res = _FAIL;
			}

			TKIP_SW_DEC_CNT_INC(psecuritypriv, prxattrib->ra);
		} else {
			res = _FAIL;
		}

	}
exit:
	return res;

}


/* 3			=====AES related===== */
#if (NEW_CRYPTO == 0)

#define MAX_MSG_SIZE	2048
/*****************************/
/******** SBOX Table *********/
/*****************************/

static  u8 sbox_table[256] = {
	0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5,
	0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
	0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
	0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
	0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc,
	0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
	0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a,
	0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
	0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
	0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
	0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b,
	0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
	0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85,
	0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
	0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
	0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
	0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17,
	0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
	0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88,
	0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
	0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
	0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
	0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9,
	0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
	0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6,
	0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
	0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
	0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
	0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94,
	0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
	0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68,
	0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
};

/*****************************/
/**** Function Prototypes ****/
/*****************************/

static void bitwise_xor(u8 *ina, u8 *inb, u8 *out);
static void construct_mic_iv(
	u8 *mic_header1,
	sint qc_exists,
	sint a4_exists,
	u8 *mpdu,
	uint payload_length,
	u8 *pn_vector,
	uint frtype);/* add for CONFIG_IEEE80211W, none 11w also can use */
static void construct_mic_header1(
	u8 *mic_header1,
	sint header_length,
	u8 *mpdu,
	uint frtype);/* add for CONFIG_IEEE80211W, none 11w also can use */
static void construct_mic_header2(
	u8 *mic_header2,
	u8 *mpdu,
	sint a4_exists,
	sint qc_exists);
static void construct_ctr_preload(
	u8 *ctr_preload,
	sint a4_exists,
	sint qc_exists,
	u8 *mpdu,
	u8 *pn_vector,
	sint c,
	uint frtype);/* add for CONFIG_IEEE80211W, none 11w also can use */
static void xor_128(u8 *a, u8 *b, u8 *out);
static void xor_32(u8 *a, u8 *b, u8 *out);
static u8 sbox(u8 a);
static void next_key(u8 *key, sint round);
static void byte_sub(u8 *in, u8 *out);
static void shift_row(u8 *in, u8 *out);
static void mix_column(u8 *in, u8 *out);
static void aes128k128d(u8 *key, u8 *data, u8 *ciphertext);


/****************************************/
/* aes128k128d()                       */
/* Performs a 128 bit AES encrypt with */
/* 128 bit data.                       */
/****************************************/
static void xor_128(u8 *a, u8 *b, u8 *out)
{
	sint i;
	for (i = 0; i < 16; i++)
		out[i] = a[i] ^ b[i];
}


static void xor_32(u8 *a, u8 *b, u8 *out)
{
	sint i;
	for (i = 0; i < 4; i++)
		out[i] = a[i] ^ b[i];
}


static u8 sbox(u8 a)
{
	return sbox_table[(sint)a];
}


static void next_key(u8 *key, sint round)
{
	u8 rcon;
	u8 sbox_key[4];
	u8 rcon_table[12] = {
		0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
		0x1b, 0x36, 0x36, 0x36
	};
	sbox_key[0] = sbox(key[13]);
	sbox_key[1] = sbox(key[14]);
	sbox_key[2] = sbox(key[15]);
	sbox_key[3] = sbox(key[12]);

	rcon = rcon_table[round];

	xor_32(&key[0], sbox_key, &key[0]);
	key[0] = key[0] ^ rcon;

	xor_32(&key[4], &key[0], &key[4]);
	xor_32(&key[8], &key[4], &key[8]);
	xor_32(&key[12], &key[8], &key[12]);
}


static void byte_sub(u8 *in, u8 *out)
{
	sint i;
	for (i = 0; i < 16; i++)
		out[i] = sbox(in[i]);
}


static void shift_row(u8 *in, u8 *out)
{
	out[0] =  in[0];
	out[1] =  in[5];
	out[2] =  in[10];
	out[3] =  in[15];
	out[4] =  in[4];
	out[5] =  in[9];
	out[6] =  in[14];
	out[7] =  in[3];
	out[8] =  in[8];
	out[9] =  in[13];
	out[10] = in[2];
	out[11] = in[7];
	out[12] = in[12];
	out[13] = in[1];
	out[14] = in[6];
	out[15] = in[11];
}


static void mix_column(u8 *in, u8 *out)
{
	sint i;
	u8 add1b[4];
	u8 add1bf7[4];
	u8 rotl[4];
	u8 swap_halfs[4];
	u8 andf7[4];
	u8 rotr[4];
	u8 temp[4];
	u8 tempb[4];
	for (i = 0 ; i < 4; i++) {
		if ((in[i] & 0x80) == 0x80)
			add1b[i] = 0x1b;
		else
			add1b[i] = 0x00;
	}

	swap_halfs[0] = in[2];    /* Swap halfs */
	swap_halfs[1] = in[3];
	swap_halfs[2] = in[0];
	swap_halfs[3] = in[1];

	rotl[0] = in[3];        /* Rotate left 8 bits */
	rotl[1] = in[0];
	rotl[2] = in[1];
	rotl[3] = in[2];

	andf7[0] = in[0] & 0x7f;
	andf7[1] = in[1] & 0x7f;
	andf7[2] = in[2] & 0x7f;
	andf7[3] = in[3] & 0x7f;

	for (i = 3; i > 0; i--) { /* logical shift left 1 bit */
		andf7[i] = andf7[i] << 1;
		if ((andf7[i - 1] & 0x80) == 0x80)
			andf7[i] = (andf7[i] | 0x01);
	}
	andf7[0] = andf7[0] << 1;
	andf7[0] = andf7[0] & 0xfe;

	xor_32(add1b, andf7, add1bf7);

	xor_32(in, add1bf7, rotr);

	temp[0] = rotr[0];         /* Rotate right 8 bits */
	rotr[0] = rotr[1];
	rotr[1] = rotr[2];
	rotr[2] = rotr[3];
	rotr[3] = temp[0];

	xor_32(add1bf7, rotr, temp);
	xor_32(swap_halfs, rotl, tempb);
	xor_32(temp, tempb, out);
}


static void aes128k128d(u8 *key, u8 *data, u8 *ciphertext)
{
	sint round;
	sint i;
	u8 intermediatea[16];
	u8 intermediateb[16];
	u8 round_key[16];
	for (i = 0; i < 16; i++)
		round_key[i] = key[i];

	for (round = 0; round < 11; round++) {
		if (round == 0) {
			xor_128(round_key, data, ciphertext);
			next_key(round_key, round);
		} else if (round == 10) {
			byte_sub(ciphertext, intermediatea);
			shift_row(intermediatea, intermediateb);
			xor_128(intermediateb, round_key, ciphertext);
		} else { /* 1 - 9 */
			byte_sub(ciphertext, intermediatea);
			shift_row(intermediatea, intermediateb);
			mix_column(&intermediateb[0], &intermediatea[0]);
			mix_column(&intermediateb[4], &intermediatea[4]);
			mix_column(&intermediateb[8], &intermediatea[8]);
			mix_column(&intermediateb[12], &intermediatea[12]);
			xor_128(intermediatea, round_key, ciphertext);
			next_key(round_key, round);
		}
	}
}


/************************************************/
/* construct_mic_iv()                          */
/* Builds the MIC IV from header fields and PN */
/* Baron think the function is construct CCM   */
/* nonce                                       */
/************************************************/
static void construct_mic_iv(
	u8 *mic_iv,
	sint qc_exists,
	sint a4_exists,
	u8 *mpdu,
	uint payload_length,
	u8 *pn_vector,
	uint frtype/* add for CONFIG_IEEE80211W, none 11w also can use */
)
{
	sint i;
	mic_iv[0] = 0x59;
	if (qc_exists && a4_exists)
		mic_iv[1] = mpdu[30] & 0x0f;    /* QoS_TC          */
	if (qc_exists && !a4_exists)
		mic_iv[1] = mpdu[24] & 0x0f;   /* mute bits 7-4   */
	if (!qc_exists)
		mic_iv[1] = 0x00;
#if defined(CONFIG_IEEE80211W) || defined(CONFIG_RTW_MESH)
	/* 802.11w management frame should set management bit(4) */
	if (frtype == WIFI_MGT_TYPE)
		mic_iv[1] |= BIT(4);
#endif
	for (i = 2; i < 8; i++)
		mic_iv[i] = mpdu[i + 8];                    /* mic_iv[2:7] = A2[0:5] = mpdu[10:15] */
#ifdef CONSISTENT_PN_ORDER
	for (i = 8; i < 14; i++)
		mic_iv[i] = pn_vector[i - 8];           /* mic_iv[8:13] = PN[0:5] */
#else
	for (i = 8; i < 14; i++)
		mic_iv[i] = pn_vector[13 - i];          /* mic_iv[8:13] = PN[5:0] */
#endif
	mic_iv[14] = (unsigned char)(payload_length / 256);
	mic_iv[15] = (unsigned char)(payload_length % 256);
}


/************************************************/
/* construct_mic_header1()                     */
/* Builds the first MIC header block from      */
/* header fields.                              */
/* Build AAD SC,A1,A2                          */
/************************************************/
static void construct_mic_header1(
	u8 *mic_header1,
	sint header_length,
	u8 *mpdu,
	uint frtype/* add for CONFIG_IEEE80211W, none 11w also can use */
)
{
	mic_header1[0] = (u8)((header_length - 2) / 256);
	mic_header1[1] = (u8)((header_length - 2) % 256);
#if defined(CONFIG_IEEE80211W) || defined(CONFIG_RTW_MESH)
	/* 802.11w management frame don't AND subtype bits 4,5,6 of frame control field */
	if (frtype == WIFI_MGT_TYPE)
		mic_header1[2] = mpdu[0];
	else
#endif
		mic_header1[2] = mpdu[0] & 0xcf;    /* Mute CF poll & CF ack bits */

	mic_header1[3] = mpdu[1] & 0xc7;    /* Mute retry, more data and pwr mgt bits */
	mic_header1[4] = mpdu[4];       /* A1 */
	mic_header1[5] = mpdu[5];
	mic_header1[6] = mpdu[6];
	mic_header1[7] = mpdu[7];
	mic_header1[8] = mpdu[8];
	mic_header1[9] = mpdu[9];
	mic_header1[10] = mpdu[10];     /* A2 */
	mic_header1[11] = mpdu[11];
	mic_header1[12] = mpdu[12];
	mic_header1[13] = mpdu[13];
	mic_header1[14] = mpdu[14];
	mic_header1[15] = mpdu[15];
}


/************************************************/
/* construct_mic_header2()                     */
/* Builds the last MIC header block from       */
/* header fields.                              */
/************************************************/
static void construct_mic_header2(
	u8 *mic_header2,
	u8 *mpdu,
	sint a4_exists,
	sint qc_exists
)
{
	sint i;
	for (i = 0; i < 16; i++)
		mic_header2[i] = 0x00;

	mic_header2[0] = mpdu[16];    /* A3 */
	mic_header2[1] = mpdu[17];
	mic_header2[2] = mpdu[18];
	mic_header2[3] = mpdu[19];
	mic_header2[4] = mpdu[20];
	mic_header2[5] = mpdu[21];

	/* mic_header2[6] = mpdu[22] & 0xf0;    SC */
	mic_header2[6] = 0x00;
	mic_header2[7] = 0x00; /* mpdu[23]; */


	if (!qc_exists && a4_exists) {
		for (i = 0; i < 6; i++)
			mic_header2[8 + i] = mpdu[24 + i]; /* A4 */

	}

	if (qc_exists && !a4_exists) {
		mic_header2[8] = mpdu[24] & 0x0f; /* mute bits 15 - 4 */
		mic_header2[9] = mpdu[25] & 0x00;
	}

	if (qc_exists && a4_exists) {
		for (i = 0; i < 6; i++)
			mic_header2[8 + i] = mpdu[24 + i]; /* A4 */

		mic_header2[14] = mpdu[30] & 0x0f;
		mic_header2[15] = mpdu[31] & 0x00;
	}

}


/************************************************/
/* construct_mic_header2()                     */
/* Builds the last MIC header block from       */
/* header fields.                              */
/* Baron think the function is construct CCM   */
/* nonce                                       */
/************************************************/
static void construct_ctr_preload(
	u8 *ctr_preload,
	sint a4_exists,
	sint qc_exists,
	u8 *mpdu,
	u8 *pn_vector,
	sint c,
	uint frtype /* add for CONFIG_IEEE80211W, none 11w also can use */
)
{
	sint i = 0;
	for (i = 0; i < 16; i++)
		ctr_preload[i] = 0x00;
	i = 0;

	ctr_preload[0] = 0x01;                                  /* flag */
	if (qc_exists && a4_exists)
		ctr_preload[1] = mpdu[30] & 0x0f;   /* QoC_Control */
	if (qc_exists && !a4_exists)
		ctr_preload[1] = mpdu[24] & 0x0f;
#if defined(CONFIG_IEEE80211W) || defined(CONFIG_RTW_MESH)
	/* 802.11w management frame should set management bit(4) */
	if (frtype == WIFI_MGT_TYPE)
		ctr_preload[1] |= BIT(4);
#endif
	for (i = 2; i < 8; i++)
		ctr_preload[i] = mpdu[i + 8];                       /* ctr_preload[2:7] = A2[0:5] = mpdu[10:15] */
#ifdef CONSISTENT_PN_ORDER
	for (i = 8; i < 14; i++)
		ctr_preload[i] =    pn_vector[i - 8];           /* ctr_preload[8:13] = PN[0:5] */
#else
	for (i = 8; i < 14; i++)
		ctr_preload[i] =    pn_vector[13 - i];          /* ctr_preload[8:13] = PN[5:0] */
#endif
	ctr_preload[14] = (unsigned char)(c / 256);   /* Ctr */
	ctr_preload[15] = (unsigned char)(c % 256);
}


/************************************/
/* bitwise_xor()                   */
/* A 128 bit, bitwise exclusive or */
/************************************/
static void bitwise_xor(u8 *ina, u8 *inb, u8 *out)
{
	sint i;
	for (i = 0; i < 16; i++)
		out[i] = ina[i] ^ inb[i];
}


static sint aes_cipher(u8 *key, uint	hdrlen,
		       u8 *pframe, uint plen)
{
	/*	static unsigned char	message[MAX_MSG_SIZE]; */
	uint	qc_exists, a4_exists, i, j, payload_remainder,
		num_blocks, payload_index;

	u8 pn_vector[6];
	u8 mic_iv[16];
	u8 mic_header1[16];
	u8 mic_header2[16];
	u8 ctr_preload[16];

	/* Intermediate Buffers */
	u8 chain_buffer[16];
	u8 aes_out[16];
	u8 padded_buffer[16];
	u8 mic[8];
	/*	uint	offset = 0; */
	uint	frtype  = GetFrameType(pframe);
	uint	frsubtype  = get_frame_sub_type(pframe);

	frsubtype = frsubtype >> 4;


	_rtw_memset((void *)mic_iv, 0, 16);
	_rtw_memset((void *)mic_header1, 0, 16);
	_rtw_memset((void *)mic_header2, 0, 16);
	_rtw_memset((void *)ctr_preload, 0, 16);
	_rtw_memset((void *)chain_buffer, 0, 16);
	_rtw_memset((void *)aes_out, 0, 16);
	_rtw_memset((void *)padded_buffer, 0, 16);

	if ((hdrlen == WLAN_HDR_A3_LEN) || (hdrlen ==  WLAN_HDR_A3_QOS_LEN))
		a4_exists = 0;
	else
		a4_exists = 1;

	if (
		((frtype | frsubtype) == WIFI_DATA_CFACK) ||
		((frtype | frsubtype) == WIFI_DATA_CFPOLL) ||
		((frtype | frsubtype) == WIFI_DATA_CFACKPOLL)) {
		qc_exists = 1;
		if (hdrlen != WLAN_HDR_A3_QOS_LEN && hdrlen != WLAN_HDR_A4_QOS_LEN)
			hdrlen += 2;
	}
	/* add for CONFIG_IEEE80211W, none 11w also can use */
	else if ((frtype == WIFI_DATA) &&
		 ((frsubtype == 0x08) ||
		  (frsubtype == 0x09) ||
		  (frsubtype == 0x0a) ||
		  (frsubtype == 0x0b))) {
		if (hdrlen != WLAN_HDR_A3_QOS_LEN && hdrlen != WLAN_HDR_A4_QOS_LEN)
			hdrlen += 2;
		qc_exists = 1;
	} else
		qc_exists = 0;

	pn_vector[0] = pframe[hdrlen];
	pn_vector[1] = pframe[hdrlen + 1];
	pn_vector[2] = pframe[hdrlen + 4];
	pn_vector[3] = pframe[hdrlen + 5];
	pn_vector[4] = pframe[hdrlen + 6];
	pn_vector[5] = pframe[hdrlen + 7];

	construct_mic_iv(
		mic_iv,
		qc_exists,
		a4_exists,
		pframe,	 /* message, */
		plen,
		pn_vector,
		frtype /* add for CONFIG_IEEE80211W, none 11w also can use */
	);

	construct_mic_header1(
		mic_header1,
		hdrlen,
		pframe,	/* message */
		frtype /* add for CONFIG_IEEE80211W, none 11w also can use */
	);
	construct_mic_header2(
		mic_header2,
		pframe,	/* message, */
		a4_exists,
		qc_exists
	);


	payload_remainder = plen % 16;
	num_blocks = plen / 16;

	/* Find start of payload */
	payload_index = (hdrlen + 8);

	/* Calculate MIC */
	aes128k128d(key, mic_iv, aes_out);
	bitwise_xor(aes_out, mic_header1, chain_buffer);
	aes128k128d(key, chain_buffer, aes_out);
	bitwise_xor(aes_out, mic_header2, chain_buffer);
	aes128k128d(key, chain_buffer, aes_out);

	for (i = 0; i < num_blocks; i++) {
		bitwise_xor(aes_out, &pframe[payload_index], chain_buffer);/* bitwise_xor(aes_out, &message[payload_index], chain_buffer); */

		payload_index += 16;
		aes128k128d(key, chain_buffer, aes_out);
	}

	/* Add on the final payload block if it needs padding */
	if (payload_remainder > 0) {
		for (j = 0; j < 16; j++)
			padded_buffer[j] = 0x00;
		for (j = 0; j < payload_remainder; j++) {
			padded_buffer[j] = pframe[payload_index++];/* padded_buffer[j] = message[payload_index++]; */
		}
		bitwise_xor(aes_out, padded_buffer, chain_buffer);
		aes128k128d(key, chain_buffer, aes_out);

	}

	for (j = 0 ; j < 8; j++)
		mic[j] = aes_out[j];

	/* Insert MIC into payload */
	for (j = 0; j < 8; j++)
		pframe[payload_index + j] = mic[j];	/* message[payload_index+j] = mic[j]; */

	payload_index = hdrlen + 8;
	for (i = 0; i < num_blocks; i++) {
		construct_ctr_preload(
			ctr_preload,
			a4_exists,
			qc_exists,
			pframe,	/* message, */
			pn_vector,
			i + 1,
			frtype); /* add for CONFIG_IEEE80211W, none 11w also can use */
		aes128k128d(key, ctr_preload, aes_out);
		bitwise_xor(aes_out, &pframe[payload_index], chain_buffer);/* bitwise_xor(aes_out, &message[payload_index], chain_buffer); */
		for (j = 0; j < 16; j++)
			pframe[payload_index++] = chain_buffer[j];/* for (j=0; j<16;j++) message[payload_index++] = chain_buffer[j]; */
	}

	if (payload_remainder > 0) {        /* If there is a short final block, then pad it,*/
		/* encrypt it and copy the unpadded part back  */
		construct_ctr_preload(
			ctr_preload,
			a4_exists,
			qc_exists,
			pframe,	/* message, */
			pn_vector,
			num_blocks + 1,
			frtype); /* add for CONFIG_IEEE80211W, none 11w also can use */

		for (j = 0; j < 16; j++)
			padded_buffer[j] = 0x00;
		for (j = 0; j < payload_remainder; j++) {
			padded_buffer[j] = pframe[payload_index + j]; /* padded_buffer[j] = message[payload_index+j]; */
		}
		aes128k128d(key, ctr_preload, aes_out);
		bitwise_xor(aes_out, padded_buffer, chain_buffer);
		for (j = 0; j < payload_remainder; j++)
			pframe[payload_index++] = chain_buffer[j];/* for (j=0; j<payload_remainder;j++) message[payload_index++] = chain_buffer[j]; */
	}

	/* Encrypt the MIC */
	construct_ctr_preload(
		ctr_preload,
		a4_exists,
		qc_exists,
		pframe,	/* message, */
		pn_vector,
		0,
		frtype); /* add for CONFIG_IEEE80211W, none 11w also can use */

	for (j = 0; j < 16; j++)
		padded_buffer[j] = 0x00;
	for (j = 0; j < 8; j++) {
		padded_buffer[j] = pframe[j + hdrlen + 8 + plen]; /* padded_buffer[j] = message[j+hdrlen+8+plen]; */
	}

	aes128k128d(key, ctr_preload, aes_out);
	bitwise_xor(aes_out, padded_buffer, chain_buffer);
	for (j = 0; j < 8; j++)
		pframe[payload_index++] = chain_buffer[j];/* for (j=0; j<8;j++) message[payload_index++] = chain_buffer[j]; */
	return _SUCCESS;
}
#endif /* (NEW_CRYPTO == 0) */


#if NEW_CRYPTO
u32 rtw_aes_encrypt(_adapter *padapter, u8 *pxmitframe)
{
	/* Intermediate Buffers */
	struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
	struct security_priv *psecuritypriv = &padapter->securitypriv;
	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
	sint curfragnum, plen;
	u32 prwskeylen;
	u8 *pframe;
	u8 *prwskey;
	u8 hw_hdr_offset = 0;

	u32 res = _SUCCESS;

	if (((struct xmit_frame *)pxmitframe)->buf_addr == NULL)
		return _FAIL;

#ifdef CONFIG_USB_TX_AGGREGATION
	hw_hdr_offset = TXDESC_SIZE +
		(((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
#else
#ifdef CONFIG_TX_EARLY_MODE
	hw_hdr_offset = TXDESC_OFFSET + EARLY_MODE_INFO_SIZE;
#else
	hw_hdr_offset = TXDESC_OFFSET;
#endif
#endif

	pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;

	/* start to encrypt each fragment */
	if ((pattrib->encrypt == _AES_) ||
	    (pattrib->encrypt == _CCMP_256_)) {

		if (IS_MCAST(pattrib->ra))
			prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
		else {
			prwskey = pattrib->dot118021x_UncstKey.skey;
		}

#ifdef CONFIG_TDLS
		{
			/* Swencryption */
			struct	sta_info		*ptdls_sta;
			ptdls_sta = rtw_get_stainfo(&padapter->stapriv, &pattrib->dst[0]);
			if ((ptdls_sta != NULL) && (ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE)) {
				RTW_INFO("[%s] for tdls link\n", __FUNCTION__);
				prwskey = &ptdls_sta->tpk.tk[0];
			}
		}
#endif /* CONFIG_TDLS */

		prwskeylen = (pattrib->encrypt == _CCMP_256_) ? 32 : 16;

		for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {

			if ((curfragnum + 1) == pattrib->nr_frags) {    /* the last fragment */
				plen = pattrib->last_txcmdsz - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;

				_rtw_ccmp_encrypt(padapter, prwskey, prwskeylen, pattrib->hdrlen, pframe, plen);
			} else {
				plen = pxmitpriv->frag_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;

				_rtw_ccmp_encrypt(padapter, prwskey, prwskeylen, pattrib->hdrlen, pframe, plen);
				pframe += pxmitpriv->frag_len;
				pframe = (u8 *)RND4((SIZE_PTR)(pframe));

			}
		}

		AES_SW_ENC_CNT_INC(psecuritypriv, pattrib->ra);

	}



	return res;
}
#else
u32	rtw_aes_encrypt(_adapter *padapter, u8 *pxmitframe)
{
	/* exclude ICV */


	/*static*/
	/*	unsigned char	message[MAX_MSG_SIZE]; */

	/* Intermediate Buffers */
	sint	curfragnum, length;
	u32	prwskeylen;
	u8	*pframe, *prwskey;	/* , *payload,*iv */
	u8   hw_hdr_offset = 0;
	/* struct	sta_info		*stainfo=NULL; */
	struct	pkt_attrib	*pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
	struct	security_priv	*psecuritypriv = &padapter->securitypriv;
	struct	xmit_priv		*pxmitpriv = &padapter->xmitpriv;

	/*	uint	offset = 0; */
	u32 res = _SUCCESS;

	if (((struct xmit_frame *)pxmitframe)->buf_addr == NULL)
		return _FAIL;

#ifdef CONFIG_USB_TX_AGGREGATION
	hw_hdr_offset = TXDESC_SIZE +
		(((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
#else
#ifdef CONFIG_TX_EARLY_MODE
	hw_hdr_offset = TXDESC_OFFSET + EARLY_MODE_INFO_SIZE;
#else
	hw_hdr_offset = TXDESC_OFFSET;
#endif
#endif

	pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;

	/* 4 start to encrypt each fragment */
	if ((pattrib->encrypt == _AES_)) {
		/*
				if(pattrib->psta)
				{
					stainfo = pattrib->psta;
				}
				else
				{
					RTW_INFO("%s, call rtw_get_stainfo()\n", __func__);
					stainfo=rtw_get_stainfo(&padapter->stapriv ,&pattrib->ra[0] );
				}
		*/
		/* if (stainfo!=NULL) */
		{
			/*
						if(!(stainfo->state &WIFI_ASOC_STATE))
						{
							RTW_INFO("%s, psta->state(0x%x) != WIFI_ASOC_STATE\n", __func__, stainfo->state);
							return _FAIL;
						}
			*/

			if (IS_MCAST(pattrib->ra))
				prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
			else {
				/* prwskey=&stainfo->dot118021x_UncstKey.skey[0]; */
				prwskey = pattrib->dot118021x_UncstKey.skey;
			}

#ifdef CONFIG_TDLS
			{
				/* Swencryption */
				struct	sta_info		*ptdls_sta;
				ptdls_sta = rtw_get_stainfo(&padapter->stapriv , &pattrib->dst[0]);
				if ((ptdls_sta != NULL) && (ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE)) {
					RTW_INFO("[%s] for tdls link\n", __FUNCTION__);
					prwskey = &ptdls_sta->tpk.tk[0];
				}
			}
#endif /* CONFIG_TDLS */

			prwskeylen = 16;

			for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {

				if ((curfragnum + 1) == pattrib->nr_frags) {	/* 4 the last fragment */
					length = pattrib->last_txcmdsz - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;

					aes_cipher(prwskey, pattrib->hdrlen, pframe, length);
				} else {
					length = pxmitpriv->frag_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len ;

					aes_cipher(prwskey, pattrib->hdrlen, pframe, length);
					pframe += pxmitpriv->frag_len;
					pframe = (u8 *)RND4((SIZE_PTR)(pframe));

				}
			}

			AES_SW_ENC_CNT_INC(psecuritypriv, pattrib->ra);
		}
		/*
				else{
					RTW_INFO("%s, psta==NUL\n", __func__);
					res=_FAIL;
				}
		*/
	}



	return res;
}
#endif

#if (NEW_CRYPTO == 0)
static sint aes_decipher(u8 *key, uint	hdrlen,
			 u8 *pframe, uint plen)
{
	static u8	message[MAX_MSG_SIZE];
	uint	qc_exists, a4_exists, i, j, payload_remainder,
		num_blocks, payload_index;
	sint res = _SUCCESS;
	u8 pn_vector[6];
	u8 mic_iv[16];
	u8 mic_header1[16];
	u8 mic_header2[16];
	u8 ctr_preload[16];

	/* Intermediate Buffers */
	u8 chain_buffer[16];
	u8 aes_out[16];
	u8 padded_buffer[16];
	u8 mic[8];


	/*	uint	offset = 0; */
	uint	frtype  = GetFrameType(pframe);
	uint	frsubtype  = get_frame_sub_type(pframe);
	frsubtype = frsubtype >> 4;


	_rtw_memset((void *)mic_iv, 0, 16);
	_rtw_memset((void *)mic_header1, 0, 16);
	_rtw_memset((void *)mic_header2, 0, 16);
	_rtw_memset((void *)ctr_preload, 0, 16);
	_rtw_memset((void *)chain_buffer, 0, 16);
	_rtw_memset((void *)aes_out, 0, 16);
	_rtw_memset((void *)padded_buffer, 0, 16);

	/* start to decrypt the payload */

	num_blocks = (plen - 8) / 16; /* (plen including LLC, payload_length and mic ) */

	payload_remainder = (plen - 8) % 16;

	pn_vector[0]  = pframe[hdrlen];
	pn_vector[1]  = pframe[hdrlen + 1];
	pn_vector[2]  = pframe[hdrlen + 4];
	pn_vector[3]  = pframe[hdrlen + 5];
	pn_vector[4]  = pframe[hdrlen + 6];
	pn_vector[5]  = pframe[hdrlen + 7];

	if ((hdrlen == WLAN_HDR_A3_LEN) || (hdrlen ==  WLAN_HDR_A3_QOS_LEN))
		a4_exists = 0;
	else
		a4_exists = 1;

	if (
		((frtype | frsubtype) == WIFI_DATA_CFACK) ||
		((frtype | frsubtype) == WIFI_DATA_CFPOLL) ||
		((frtype | frsubtype) == WIFI_DATA_CFACKPOLL)) {
		qc_exists = 1;
		if (hdrlen != WLAN_HDR_A3_QOS_LEN && hdrlen != WLAN_HDR_A4_QOS_LEN)
			hdrlen += 2;
	} /* only for data packet . add for CONFIG_IEEE80211W, none 11w also can use */
	else if ((frtype == WIFI_DATA) &&
		 ((frsubtype == 0x08) ||
		  (frsubtype == 0x09) ||
		  (frsubtype == 0x0a) ||
		  (frsubtype == 0x0b))) {
		if (hdrlen != WLAN_HDR_A3_QOS_LEN && hdrlen != WLAN_HDR_A4_QOS_LEN)
			hdrlen += 2;
		qc_exists = 1;
	} else
		qc_exists = 0;


	/* now, decrypt pframe with hdrlen offset and plen long */

	payload_index = hdrlen + 8; /* 8 is for extiv */

	for (i = 0; i < num_blocks; i++) {
		construct_ctr_preload(
			ctr_preload,
			a4_exists,
			qc_exists,
			pframe,
			pn_vector,
			i + 1,
			frtype /* add for CONFIG_IEEE80211W, none 11w also can use */
		);

		aes128k128d(key, ctr_preload, aes_out);
		bitwise_xor(aes_out, &pframe[payload_index], chain_buffer);

		for (j = 0; j < 16; j++)
			pframe[payload_index++] = chain_buffer[j];
	}

	if (payload_remainder > 0) {        /* If there is a short final block, then pad it,*/
		/* encrypt it and copy the unpadded part back  */
		construct_ctr_preload(
			ctr_preload,
			a4_exists,
			qc_exists,
			pframe,
			pn_vector,
			num_blocks + 1,
			frtype /* add for CONFIG_IEEE80211W, none 11w also can use */
		);

		for (j = 0; j < 16; j++)
			padded_buffer[j] = 0x00;
		for (j = 0; j < payload_remainder; j++)
			padded_buffer[j] = pframe[payload_index + j];
		aes128k128d(key, ctr_preload, aes_out);
		bitwise_xor(aes_out, padded_buffer, chain_buffer);
		for (j = 0; j < payload_remainder; j++)
			pframe[payload_index++] = chain_buffer[j];
	}

	/* start to calculate the mic	 */
	if ((hdrlen + plen + 8) <= MAX_MSG_SIZE)
		_rtw_memcpy((void *)message, pframe, (hdrlen + plen + 8)); /* 8 is for ext iv len */


	pn_vector[0] = pframe[hdrlen];
	pn_vector[1] = pframe[hdrlen + 1];
	pn_vector[2] = pframe[hdrlen + 4];
	pn_vector[3] = pframe[hdrlen + 5];
	pn_vector[4] = pframe[hdrlen + 6];
	pn_vector[5] = pframe[hdrlen + 7];



	construct_mic_iv(
		mic_iv,
		qc_exists,
		a4_exists,
		message,
		plen - 8,
		pn_vector,
		frtype /* add for CONFIG_IEEE80211W, none 11w also can use */
	);

	construct_mic_header1(
		mic_header1,
		hdrlen,
		message,
		frtype /* add for CONFIG_IEEE80211W, none 11w also can use */
	);
	construct_mic_header2(
		mic_header2,
		message,
		a4_exists,
		qc_exists
	);


	payload_remainder = (plen - 8) % 16;
	num_blocks = (plen - 8) / 16;

	/* Find start of payload */
	payload_index = (hdrlen + 8);

	/* Calculate MIC */
	aes128k128d(key, mic_iv, aes_out);
	bitwise_xor(aes_out, mic_header1, chain_buffer);
	aes128k128d(key, chain_buffer, aes_out);
	bitwise_xor(aes_out, mic_header2, chain_buffer);
	aes128k128d(key, chain_buffer, aes_out);

	for (i = 0; i < num_blocks; i++) {
		bitwise_xor(aes_out, &message[payload_index], chain_buffer);

		payload_index += 16;
		aes128k128d(key, chain_buffer, aes_out);
	}

	/* Add on the final payload block if it needs padding */
	if (payload_remainder > 0) {
		for (j = 0; j < 16; j++)
			padded_buffer[j] = 0x00;
		for (j = 0; j < payload_remainder; j++)
			padded_buffer[j] = message[payload_index++];
		bitwise_xor(aes_out, padded_buffer, chain_buffer);
		aes128k128d(key, chain_buffer, aes_out);

	}

	for (j = 0 ; j < 8; j++)
		mic[j] = aes_out[j];

	/* Insert MIC into payload */
	for (j = 0; j < 8; j++)
		message[payload_index + j] = mic[j];

	payload_index = hdrlen + 8;
	for (i = 0; i < num_blocks; i++) {
		construct_ctr_preload(
			ctr_preload,
			a4_exists,
			qc_exists,
			message,
			pn_vector,
			i + 1,
			frtype); /* add for CONFIG_IEEE80211W, none 11w also can use */
		aes128k128d(key, ctr_preload, aes_out);
		bitwise_xor(aes_out, &message[payload_index], chain_buffer);
		for (j = 0; j < 16; j++)
			message[payload_index++] = chain_buffer[j];
	}

	if (payload_remainder > 0) {        /* If there is a short final block, then pad it,*/
		/* encrypt it and copy the unpadded part back  */
		construct_ctr_preload(
			ctr_preload,
			a4_exists,
			qc_exists,
			message,
			pn_vector,
			num_blocks + 1,
			frtype); /* add for CONFIG_IEEE80211W, none 11w also can use */

		for (j = 0; j < 16; j++)
			padded_buffer[j] = 0x00;
		for (j = 0; j < payload_remainder; j++)
			padded_buffer[j] = message[payload_index + j];
		aes128k128d(key, ctr_preload, aes_out);
		bitwise_xor(aes_out, padded_buffer, chain_buffer);
		for (j = 0; j < payload_remainder; j++)
			message[payload_index++] = chain_buffer[j];
	}

	/* Encrypt the MIC */
	construct_ctr_preload(
		ctr_preload,
		a4_exists,
		qc_exists,
		message,
		pn_vector,
		0,
		frtype); /* add for CONFIG_IEEE80211W, none 11w also can use */

	for (j = 0; j < 16; j++)
		padded_buffer[j] = 0x00;
	for (j = 0; j < 8; j++)
		padded_buffer[j] = message[j + hdrlen + 8 + plen - 8];

	aes128k128d(key, ctr_preload, aes_out);
	bitwise_xor(aes_out, padded_buffer, chain_buffer);
	for (j = 0; j < 8; j++)
		message[payload_index++] = chain_buffer[j];

	/* compare the mic */
	for (i = 0; i < 8; i++) {
		if (pframe[hdrlen + 8 + plen - 8 + i] != message[hdrlen + 8 + plen - 8 + i]) {
			RTW_INFO("aes_decipher:mic check error mic[%d]: pframe(%x) != message(%x)\n",
				i, pframe[hdrlen + 8 + plen - 8 + i], message[hdrlen + 8 + plen - 8 + i]);
			res = _FAIL;
		}
	}
	return res;
}
#endif /* (NEW_CRYPTO == 0) */

#if NEW_CRYPTO
u32 rtw_aes_decrypt(_adapter *padapter, u8 *precvframe)
{
	struct sta_info *stainfo;
	struct rx_pkt_attrib *prxattrib = &((union recv_frame *)precvframe)->u.hdr.attrib;
	struct security_priv *psecuritypriv = &padapter->securitypriv;
	u8 *pframe;
	u8 *prwskey;
	u32 res = _SUCCESS;

	pframe = (unsigned char *)((union recv_frame *)precvframe)->u.hdr.rx_data;
	/* start to encrypt each fragment */
	if ((prxattrib->encrypt == _AES_) ||
	    (prxattrib->encrypt == _CCMP_256_)) {

		stainfo = rtw_get_stainfo(&padapter->stapriv, &prxattrib->ta[0]);
		if (stainfo != NULL) {

			if (IS_MCAST(prxattrib->ra)) {
				static systime start = 0;
				static u32 no_gkey_bc_cnt = 0;
				static u32 no_gkey_mc_cnt = 0;

				if ((!MLME_IS_MESH(padapter) && psecuritypriv->binstallGrpkey == _FALSE)
					#ifdef CONFIG_RTW_MESH
					|| !(stainfo->gtk_bmp | BIT(prxattrib->key_index))
					#endif
				) {
					res = _FAIL;

					if (start == 0)
						start = rtw_get_current_time();

					if (is_broadcast_mac_addr(prxattrib->ra))
						no_gkey_bc_cnt++;
					else
						no_gkey_mc_cnt++;

					if (rtw_get_passing_time_ms(start) > 1000) {
						if (no_gkey_bc_cnt || no_gkey_mc_cnt) {
							RTW_PRINT(FUNC_ADPT_FMT" no_gkey_bc_cnt:%u, no_gkey_mc_cnt:%u\n",
								FUNC_ADPT_ARG(padapter), no_gkey_bc_cnt, no_gkey_mc_cnt);
						}
						start = rtw_get_current_time();
						no_gkey_bc_cnt = 0;
						no_gkey_mc_cnt = 0;
					}

					goto exit;
				}

				if (no_gkey_bc_cnt || no_gkey_mc_cnt) {
					RTW_PRINT(FUNC_ADPT_FMT" gkey installed. no_gkey_bc_cnt:%u, no_gkey_mc_cnt:%u\n",
						FUNC_ADPT_ARG(padapter), no_gkey_bc_cnt, no_gkey_mc_cnt);
				}
				start = 0;
				no_gkey_bc_cnt = 0;
				no_gkey_mc_cnt = 0;

				#ifdef CONFIG_RTW_MESH
				if (MLME_IS_MESH(padapter)) {
					/* TODO: multiple GK? */
					prwskey = &stainfo->gtk.skey[0];
				} else
				#endif
				{
					prwskey = psecuritypriv->dot118021XGrpKey[prxattrib->key_index].skey;
					if (psecuritypriv->dot118021XGrpKeyid != prxattrib->key_index) {
						RTW_DBG("not match packet_index=%d, install_index=%d\n"
							, prxattrib->key_index, psecuritypriv->dot118021XGrpKeyid);
						res = _FAIL;
						goto exit;
					}
				}
			} else
				prwskey = &stainfo->dot118021x_UncstKey.skey[0];

			res = _rtw_ccmp_decrypt(padapter, prwskey,
				prxattrib->encrypt == _CCMP_256_ ? 32 : 16,
				prxattrib->hdrlen, pframe,
				((union recv_frame *)precvframe)->u.hdr.len);

			AES_SW_DEC_CNT_INC(psecuritypriv, prxattrib->ra);
		} else {
			res = _FAIL;
		}

	}
exit:
	return res;
}
#else
u32	rtw_aes_decrypt(_adapter *padapter, u8 *precvframe)
{
	/* exclude ICV */


	/*static*/
	/*	unsigned char	message[MAX_MSG_SIZE]; */


	/* Intermediate Buffers */


	sint		length;
	u8	*pframe, *prwskey;	/* , *payload,*iv */
	struct	sta_info		*stainfo;
	struct	rx_pkt_attrib	*prxattrib = &((union recv_frame *)precvframe)->u.hdr.attrib;
	struct	security_priv	*psecuritypriv = &padapter->securitypriv;
	/*	struct	recv_priv		*precvpriv=&padapter->recvpriv; */
	u32	res = _SUCCESS;
	pframe = (unsigned char *)((union recv_frame *)precvframe)->u.hdr.rx_data;
	/* 4 start to encrypt each fragment */
	if ((prxattrib->encrypt == _AES_)) {

		stainfo = rtw_get_stainfo(&padapter->stapriv , &prxattrib->ta[0]);
		if (stainfo != NULL) {

			if (IS_MCAST(prxattrib->ra)) {
				static systime start = 0;
				static u32 no_gkey_bc_cnt = 0;
				static u32 no_gkey_mc_cnt = 0;

				/* RTW_INFO("rx bc/mc packets, to perform sw rtw_aes_decrypt\n"); */
				/* prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey; */
				if ((!MLME_IS_MESH(padapter) && psecuritypriv->binstallGrpkey == _FALSE)
					#ifdef CONFIG_RTW_MESH
					|| !(stainfo->gtk_bmp | BIT(prxattrib->key_index))
					#endif
				) {
					res = _FAIL;

					if (start == 0)
						start = rtw_get_current_time();

					if (is_broadcast_mac_addr(prxattrib->ra))
						no_gkey_bc_cnt++;
					else
						no_gkey_mc_cnt++;

					if (rtw_get_passing_time_ms(start) > 1000) {
						if (no_gkey_bc_cnt || no_gkey_mc_cnt) {
							RTW_PRINT(FUNC_ADPT_FMT" no_gkey_bc_cnt:%u, no_gkey_mc_cnt:%u\n",
								FUNC_ADPT_ARG(padapter), no_gkey_bc_cnt, no_gkey_mc_cnt);
						}
						start = rtw_get_current_time();
						no_gkey_bc_cnt = 0;
						no_gkey_mc_cnt = 0;
					}

					goto exit;
				}

				if (no_gkey_bc_cnt || no_gkey_mc_cnt) {
					RTW_PRINT(FUNC_ADPT_FMT" gkey installed. no_gkey_bc_cnt:%u, no_gkey_mc_cnt:%u\n",
						FUNC_ADPT_ARG(padapter), no_gkey_bc_cnt, no_gkey_mc_cnt);
				}
				start = 0;
				no_gkey_bc_cnt = 0;
				no_gkey_mc_cnt = 0;

				#ifdef CONFIG_RTW_MESH
				if (MLME_IS_MESH(padapter)) {
					/* TODO: multiple GK? */
					prwskey = &stainfo->gtk.skey[0];
				} else
				#endif
				{
					prwskey = psecuritypriv->dot118021XGrpKey[prxattrib->key_index].skey;
					if (psecuritypriv->dot118021XGrpKeyid != prxattrib->key_index) {
						RTW_DBG("not match packet_index=%d, install_index=%d\n"
							, prxattrib->key_index, psecuritypriv->dot118021XGrpKeyid);
						res = _FAIL;
						goto exit;
					}
				}
			} else
				prwskey = &stainfo->dot118021x_UncstKey.skey[0];

			length = ((union recv_frame *)precvframe)->u.hdr.len - prxattrib->hdrlen - prxattrib->iv_len;
#if 0
			/*  add for CONFIG_IEEE80211W, debug */
			if (0)
				printk("@@@@@@@@@@@@@@@@@@ length=%d, prxattrib->hdrlen=%d, prxattrib->pkt_len=%d\n"
				       , length, prxattrib->hdrlen, prxattrib->pkt_len);
			if (0) {
				int no;
				/* test print PSK */
				printk("PSK key below:\n");
				for (no = 0; no < 16; no++)
					printk(" %02x ", prwskey[no]);
				printk("\n");
			}
			if (0) {
				int no;
				/* test print PSK */
				printk("frame:\n");
				for (no = 0; no < prxattrib->pkt_len; no++)
					printk(" %02x ", pframe[no]);
				printk("\n");
			}
#endif

			res = aes_decipher(prwskey, prxattrib->hdrlen, pframe, length);

			AES_SW_DEC_CNT_INC(psecuritypriv, prxattrib->ra);
		} else {
			res = _FAIL;
		}

	}
exit:
	return res;
}
#endif

#ifdef CONFIG_RTW_MESH_AEK
/* for AES-SIV, wrapper to ase_siv_encrypt and aes_siv_decrypt */
int rtw_aes_siv_encrypt(const u8 *key, size_t key_len, const u8 *pw,
	size_t pwlen, size_t num_elem,
	const u8 *addr[], const size_t *len, u8 *out)
{
	return _aes_siv_encrypt(key, key_len, pw, pwlen,
		num_elem, addr, len, out);
}

int rtw_aes_siv_decrypt(const u8 *key, size_t key_len, const u8 *iv_crypt, size_t iv_c_len,
	size_t num_elem, const u8 *addr[], const size_t *len, u8 *out)
{
	return _aes_siv_decrypt(key, key_len, iv_crypt,
		iv_c_len, num_elem, addr, len, out);
}
#endif /* CONFIG_RTW_MESH_AEK */

#ifdef CONFIG_TDLS
void wpa_tdls_generate_tpk(_adapter *padapter, void *sta)
{
	struct sta_info *psta = (struct sta_info *)sta;
	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;

	_tdls_generate_tpk(psta, adapter_mac_addr(padapter), get_bssid(pmlmepriv));
}

/**
 * wpa_tdls_ftie_mic - Calculate TDLS FTIE MIC
 * @kck: TPK-KCK
 * @lnkid: Pointer to the beginning of Link Identifier IE
 * @rsnie: Pointer to the beginning of RSN IE used for handshake
 * @timeoutie: Pointer to the beginning of Timeout IE used for handshake
 * @ftie: Pointer to the beginning of FT IE
 * @mic: Pointer for writing MIC
 *
 * Calculate MIC for TDLS frame.
 */
int wpa_tdls_ftie_mic(u8 *kck, u8 trans_seq,
		      u8 *lnkid, u8 *rsnie, u8 *timeoutie, u8 *ftie,
		      u8 *mic)
{
	u8 *buf, *pos;
	struct wpa_tdls_ftie *_ftie;
	struct wpa_tdls_lnkid *_lnkid;
	int ret;
	int len = 2 * ETH_ALEN + 1 + 2 + lnkid[1] + 2 + rsnie[1] +
		  2 + timeoutie[1] + 2 + ftie[1];
	buf = rtw_zmalloc(len);
	if (!buf) {
		RTW_INFO("TDLS: No memory for MIC calculation\n");
		return -1;
	}

	pos = buf;
	_lnkid = (struct wpa_tdls_lnkid *) lnkid;
	/* 1) TDLS initiator STA MAC address */
	_rtw_memcpy(pos, _lnkid->init_sta, ETH_ALEN);
	pos += ETH_ALEN;
	/* 2) TDLS responder STA MAC address */
	_rtw_memcpy(pos, _lnkid->resp_sta, ETH_ALEN);
	pos += ETH_ALEN;
	/* 3) Transaction Sequence number */
	*pos++ = trans_seq;
	/* 4) Link Identifier IE */
	_rtw_memcpy(pos, lnkid, 2 + lnkid[1]);
	pos += 2 + lnkid[1];
	/* 5) RSN IE */
	_rtw_memcpy(pos, rsnie, 2 + rsnie[1]);
	pos += 2 + rsnie[1];
	/* 6) Timeout Interval IE */
	_rtw_memcpy(pos, timeoutie, 2 + timeoutie[1]);
	pos += 2 + timeoutie[1];
	/* 7) FTIE, with the MIC field of the FTIE set to 0 */
	_rtw_memcpy(pos, ftie, 2 + ftie[1]);
	_ftie = (struct wpa_tdls_ftie *) pos;
	_rtw_memset(_ftie->mic, 0, TDLS_MIC_LEN);
	pos += 2 + ftie[1];

	/* ret = omac1_aes_128(kck, buf, pos - buf, mic); */
	ret = _bip_ccmp_protect(kck, 16, buf, pos - buf, mic);
	rtw_mfree(buf, len);
	return ret;

}

/**
 * wpa_tdls_teardown_ftie_mic - Calculate TDLS TEARDOWN FTIE MIC
 * @kck: TPK-KCK
 * @lnkid: Pointer to the beginning of Link Identifier IE
 * @reason: Reason code of TDLS Teardown
 * @dialog_token: Dialog token that was used in the MIC calculation for TPK Handshake Message 3
 * @trans_seq: Transaction Sequence number (1 octet) which shall be set to the value 4
 * @ftie: Pointer to the beginning of FT IE
 * @mic: Pointer for writing MIC
 *
 * Calculate MIC for TDLS TEARDOWN frame according to Section 10.22.5 in IEEE 802.11 - 2012.
 */
int wpa_tdls_teardown_ftie_mic(u8 *kck, u8 *lnkid, u16 reason,
			       u8 dialog_token, u8 trans_seq, u8 *ftie, u8 *mic)
{
	u8 *buf, *pos;
	struct wpa_tdls_ftie *_ftie;
	int ret;
	int len = 2 + lnkid[1] + 2 + 1 + 1 + 2 + ftie[1];

	buf = rtw_zmalloc(len);
	if (!buf) {
		RTW_INFO("TDLS: No memory for MIC calculation\n");
		return -1;
	}

	pos = buf;
	/* 1) Link Identifier IE */
	_rtw_memcpy(pos, lnkid, 2 + lnkid[1]);
	pos += 2 + lnkid[1];
	/* 2) Reason Code */
	_rtw_memcpy(pos, (u8 *)&reason, 2);
	pos += 2;
	/* 3) Dialog Token */
	*pos++ = dialog_token;
	/* 4) Transaction Sequence number */
	*pos++ = trans_seq;
	/* 5) FTIE, with the MIC field of the FTIE set to 0 */
	_rtw_memcpy(pos, ftie, 2 + ftie[1]);
	_ftie = (struct wpa_tdls_ftie *) pos;
	_rtw_memset(_ftie->mic, 0, TDLS_MIC_LEN);
	pos += 2 + ftie[1];

	/* ret = omac1_aes_128(kck, buf, pos - buf, mic); */
	ret = _bip_ccmp_protect(kck, 16, buf, pos - buf, mic);
	rtw_mfree(buf, len);
	return ret;

}

int tdls_verify_mic(u8 *kck, u8 trans_seq,
		    u8 *lnkid, u8 *rsnie, u8 *timeoutie, u8 *ftie)
{
	u8 *buf, *pos;
	int len;
	u8 mic[16];
	int ret;
	u8 *rx_ftie, *tmp_ftie;

	if (lnkid == NULL || rsnie == NULL ||
	    timeoutie == NULL || ftie == NULL)
		return _FAIL;

	len = 2 * ETH_ALEN + 1 + 2 + 18 + 2 + *(rsnie + 1) + 2 + *(timeoutie + 1) + 2 + *(ftie + 1);

	buf = rtw_zmalloc(len);
	if (buf == NULL)
		return _FAIL;

	pos = buf;
	/* 1) TDLS initiator STA MAC address */
	_rtw_memcpy(pos, lnkid + ETH_ALEN + 2, ETH_ALEN);
	pos += ETH_ALEN;
	/* 2) TDLS responder STA MAC address */
	_rtw_memcpy(pos, lnkid + 2 * ETH_ALEN + 2, ETH_ALEN);
	pos += ETH_ALEN;
	/* 3) Transaction Sequence number */
	*pos++ = trans_seq;
	/* 4) Link Identifier IE */
	_rtw_memcpy(pos, lnkid, 2 + 18);
	pos += 2 + 18;
	/* 5) RSN IE */
	_rtw_memcpy(pos, rsnie, 2 + *(rsnie + 1));
	pos += 2 + *(rsnie + 1);
	/* 6) Timeout Interval IE */
	_rtw_memcpy(pos, timeoutie, 2 + *(timeoutie + 1));
	pos += 2 + *(timeoutie + 1);
	/* 7) FTIE, with the MIC field of the FTIE set to 0 */
	_rtw_memcpy(pos, ftie, 2 + *(ftie + 1));
	pos += 2;
	tmp_ftie = (u8 *)(pos + 2);
	_rtw_memset(tmp_ftie, 0, 16);
	pos += *(ftie + 1);

	/* ret = omac1_aes_128(kck, buf, pos - buf, mic); */
	ret = _bip_ccmp_protect(kck, 16, buf, pos - buf, mic);
	rtw_mfree(buf, len);
	if (ret == _FAIL)
		return _FAIL;
	rx_ftie = ftie + 4;

	if (_rtw_memcmp2(mic, rx_ftie, 16) == 0) {
		/* Valid MIC */
		return _SUCCESS;
	}

	/* Invalid MIC */
	RTW_INFO("[%s] Invalid MIC\n", __FUNCTION__);
	return _FAIL;

}
#endif /* CONFIG_TDLS */

/* Restore HW wep key setting according to key_mask */
void rtw_sec_restore_wep_key(_adapter *adapter)
{
	struct security_priv *securitypriv = &(adapter->securitypriv);
	sint keyid;

	if ((_WEP40_ == securitypriv->dot11PrivacyAlgrthm) || (_WEP104_ == securitypriv->dot11PrivacyAlgrthm)) {
		for (keyid = 0; keyid < 4; keyid++) {
			if (securitypriv->key_mask & BIT(keyid)) {
				if (keyid == securitypriv->dot11PrivacyKeyIndex)
					rtw_set_key(adapter, securitypriv, keyid, 1, _FALSE);
				else
					rtw_set_key(adapter, securitypriv, keyid, 0, _FALSE);
			}
		}
	}
}

u8 rtw_handle_tkip_countermeasure(_adapter *adapter, const char *caller)
{
	struct security_priv *securitypriv = &(adapter->securitypriv);
	u8 status = _SUCCESS;

	if (securitypriv->btkip_countermeasure == _TRUE) {
		u32 passing_ms = rtw_get_passing_time_ms(securitypriv->btkip_countermeasure_time);
		if (passing_ms > 60 * 1000) {
			RTW_PRINT("%s("ADPT_FMT") countermeasure time:%ds > 60s\n",
				  caller, ADPT_ARG(adapter), passing_ms / 1000);
			securitypriv->btkip_countermeasure = _FALSE;
			securitypriv->btkip_countermeasure_time = 0;
		} else {
			RTW_PRINT("%s("ADPT_FMT") countermeasure time:%ds < 60s\n",
				  caller, ADPT_ARG(adapter), passing_ms / 1000);
			status = _FAIL;
		}
	}

	return status;
}

#ifdef CONFIG_WOWLAN
u16 rtw_cal_crc16(u8 data, u16 crc)
{
	u8 shift_in, data_bit;
	u8 crc_bit4, crc_bit11, crc_bit15;
	u16 crc_result;
	int index;

	for (index = 0; index < 8; index++) {
		crc_bit15 = ((crc & BIT15) ? 1 : 0);
		data_bit = (data & (BIT0 << index) ? 1 : 0);
		shift_in = crc_bit15 ^ data_bit;
		/*printf("crc_bit15=%d, DataBit=%d, shift_in=%d\n",
		 * crc_bit15, data_bit, shift_in);*/

		crc_result = crc << 1;

		if (shift_in == 0)
			crc_result &= (~BIT0);
		else
			crc_result |= BIT0;
		/*printf("CRC =%x\n",CRC_Result);*/

		crc_bit11 = ((crc & BIT11) ? 1 : 0) ^ shift_in;

		if (crc_bit11 == 0)
			crc_result &= (~BIT12);
		else
			crc_result |= BIT12;

		/*printf("bit12 CRC =%x\n",CRC_Result);*/

		crc_bit4 = ((crc & BIT4) ? 1 : 0) ^ shift_in;

		if (crc_bit4 == 0)
			crc_result &= (~BIT5);
		else
			crc_result |= BIT5;

		/* printf("bit5 CRC =%x\n",CRC_Result); */
		/* repeat using the last result*/
		crc = crc_result;
	}
	return crc;
}

/*
 * function name :rtw_calc_crc
 *
 * input: char* pattern , pattern size
 *
 */
u16 rtw_calc_crc(u8  *pdata, int length)
{
	u16 crc = 0xffff;
	int i;

	for (i = 0; i < length; i++)
		crc = rtw_cal_crc16(pdata[i], crc);
	/* get 1' complement */
	crc = ~crc;

	return crc;
}
#endif /*CONFIG_WOWLAN*/

u32 rtw_calc_crc32(u8 *data, size_t len)
{
	size_t i;
	u32 crc = 0xFFFFFFFF;

	if (bcrc32initialized == 0)
		crc32_init();

	for (i = 0; i < len; i++)
		crc = crc32_table[(crc ^ data[i]) & 0xff] ^ (crc >> 8);

	/* return 1' complement */
	return ~crc;
}


/**
 * rtw_gcmp_encrypt - 
 * @padapter:
 * @pxmitframe:
 *
 */
u32 rtw_gcmp_encrypt(_adapter *padapter, u8 *pxmitframe)
{
	struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
	struct security_priv *psecuritypriv = &padapter->securitypriv;
	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
	/* Intermediate Buffers */
	sint curfragnum, plen;
	u32 prwskeylen;
	u8 *pframe = NULL;
	u8 *prwskey = NULL;
	u8 hw_hdr_offset = 0;
	u32 res = _SUCCESS;

	if (((struct xmit_frame *)pxmitframe)->buf_addr == NULL)
		return _FAIL;

#ifdef CONFIG_USB_TX_AGGREGATION
	hw_hdr_offset = TXDESC_SIZE +
		(((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
#else
#ifdef CONFIG_TX_EARLY_MODE
	hw_hdr_offset = TXDESC_OFFSET + EARLY_MODE_INFO_SIZE;
#else
	hw_hdr_offset = TXDESC_OFFSET;
#endif
#endif

	pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;

	/* start to encrypt each fragment */
	if ((pattrib->encrypt == _GCMP_) ||
		(pattrib->encrypt == _GCMP_256_)) {

		if (IS_MCAST(pattrib->ra))
			prwskey = psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey;
		else
			prwskey = pattrib->dot118021x_UncstKey.skey;

		prwskeylen = (pattrib->encrypt == _GCMP_256_) ? 32 : 16;

		for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
			if ((curfragnum + 1) == pattrib->nr_frags) {
				/* the last fragment */
				plen = pattrib->last_txcmdsz - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;

				_rtw_gcmp_encrypt(padapter, prwskey, prwskeylen, pattrib->hdrlen, pframe, plen);
			} else {
				plen = pxmitpriv->frag_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;

				_rtw_gcmp_encrypt(padapter, prwskey, prwskeylen, pattrib->hdrlen, pframe, plen);
				pframe += pxmitpriv->frag_len;
				pframe = (u8 *)RND4((SIZE_PTR)(pframe));
			}
		}

		GCMP_SW_ENC_CNT_INC(psecuritypriv, pattrib->ra);
	}

	return res;
}

u32 rtw_gcmp_decrypt(_adapter *padapter, u8 *precvframe)
{
	u32 prwskeylen;
	u8 * pframe,*prwskey;
	struct sta_info *stainfo;
	struct rx_pkt_attrib *prxattrib = &((union recv_frame *)precvframe)->u.hdr.attrib;
	struct security_priv *psecuritypriv = &padapter->securitypriv;
	u32 res = _SUCCESS;
	pframe = (unsigned char *)((union recv_frame *)precvframe)->u.hdr.rx_data;

	if ((prxattrib->encrypt == _GCMP_) ||
		(prxattrib->encrypt == _GCMP_256_)) {
		stainfo = rtw_get_stainfo(&padapter->stapriv, &prxattrib->ta[0]);
		if (stainfo != NULL) {
			if (IS_MCAST(prxattrib->ra)) {
				static systime start = 0;
				static u32 no_gkey_bc_cnt = 0;
				static u32 no_gkey_mc_cnt = 0;

				if ((!MLME_IS_MESH(padapter) && psecuritypriv->binstallGrpkey == _FALSE)
					#ifdef CONFIG_RTW_MESH
					|| !(stainfo->gtk_bmp | BIT(prxattrib->key_index))
					#endif
				) {
					res = _FAIL;

					if (start == 0)
						start = rtw_get_current_time();

					if (is_broadcast_mac_addr(prxattrib->ra))
						no_gkey_bc_cnt++;
					else
						no_gkey_mc_cnt++;

					if (rtw_get_passing_time_ms(start) > 1000) {
						if (no_gkey_bc_cnt || no_gkey_mc_cnt) {
							RTW_PRINT(FUNC_ADPT_FMT" no_gkey_bc_cnt:%u, no_gkey_mc_cnt:%u\n",
								FUNC_ADPT_ARG(padapter), no_gkey_bc_cnt, no_gkey_mc_cnt);
						}
						start = rtw_get_current_time();
						no_gkey_bc_cnt = 0;
						no_gkey_mc_cnt = 0;
					}

					goto exit;
				}

				if (no_gkey_bc_cnt || no_gkey_mc_cnt) {
					RTW_PRINT(FUNC_ADPT_FMT" gkey installed. no_gkey_bc_cnt:%u, no_gkey_mc_cnt:%u\n",
						FUNC_ADPT_ARG(padapter), no_gkey_bc_cnt, no_gkey_mc_cnt);
				}
				start = 0;
				no_gkey_bc_cnt = 0;
				no_gkey_mc_cnt = 0;

				#ifdef CONFIG_RTW_MESH
				if (MLME_IS_MESH(padapter)) {
					/* TODO: multiple GK? */
					prwskey = &stainfo->gtk.skey[0];
				} else
				#endif
				{
					prwskey = psecuritypriv->dot118021XGrpKey[prxattrib->key_index].skey;
					if (psecuritypriv->dot118021XGrpKeyid != prxattrib->key_index) {
						RTW_DBG("not match packet_index=%d, install_index=%d\n"
							, prxattrib->key_index, psecuritypriv->dot118021XGrpKeyid);
						res = _FAIL;
						goto exit;
					}
				}
			} else
				prwskey = &stainfo->dot118021x_UncstKey.skey[0];

			res = _rtw_gcmp_decrypt(padapter, prwskey,
				prxattrib->encrypt == _GCMP_256_ ? 32 : 16,
				prxattrib->hdrlen, pframe,
				((union recv_frame *)precvframe)->u.hdr.len);

			GCMP_SW_DEC_CNT_INC(psecuritypriv, prxattrib->ra);
		} else {
			res = _FAIL;
		}

	}
exit:
	return res;
}


#ifdef CONFIG_IEEE80211W
u8 rtw_calculate_bip_mic(enum security_type gmcs, u8 *whdr_pos, s32 len,
	const u8 *key, const u8 *data, size_t data_len, u8 *mic)
{
	u8 res = _SUCCESS;

	if (gmcs == _BIP_CMAC_128_) {
		if (_bip_ccmp_protect(key, 16, data, data_len, mic) == _FALSE) {
			res = _FAIL;
			RTW_ERR("%s : _bip_ccmp_protect(128) fail!", __func__);
		}
	} else if (gmcs == _BIP_CMAC_256_) {
		if (_bip_ccmp_protect(key, 32, data, data_len, mic) == _FALSE) {
			res = _FAIL;
			RTW_ERR("%s : _bip_ccmp_protect(256) fail!", __func__);
		}
	} else if (gmcs == _BIP_GMAC_128_) {
		if (_bip_gcmp_protect(whdr_pos, len, key, 16,
				data, data_len, mic) == _FALSE) {
			res = _FAIL;
			RTW_ERR("%s : _bip_gcmp_protect(128) fail!", __func__);
		}
	} else if (gmcs == _BIP_GMAC_256_) {
		if (_bip_gcmp_protect(whdr_pos, len, key, 32,
				data, data_len, mic) == _FALSE) {
			res = _FAIL;
			RTW_ERR("%s : _bip_gcmp_protect(256) fail!", __func__);
		}
	} else {
		res = _FAIL;
		RTW_ERR("%s : unsupport dot11wCipher !\n", __func__);
	}

	return res;
}


u32 rtw_bip_verify(enum security_type gmcs, u16 pkt_len,
	u8 *whdr_pos, sint flen, const u8 *key, u16 keyid, u64 *ipn)
{
	u8 * BIP_AAD,*mme;
	u32 res = _FAIL;
	uint len, ori_len;
	u16 pkt_keyid = 0;
	u64 pkt_ipn = 0;
	struct rtw_ieee80211_hdr *pwlanhdr;
	u8 mic[16];
	u8 mic_len, mme_offset;

	mic_len = (gmcs == _BIP_CMAC_128_) ? 8 : 16;

	if (flen < WLAN_HDR_A3_LEN || flen - WLAN_HDR_A3_LEN < mic_len)
		return RTW_RX_HANDLED;

	mme_offset = (mic_len == 8) ? 18 : 26;
	mme = whdr_pos + flen - mme_offset;
	if (*mme != _MME_IE_)
		return RTW_RX_HANDLED;

	/* copy key index */
	_rtw_memcpy(&pkt_keyid, mme + 2, 2);
	pkt_keyid = le16_to_cpu(pkt_keyid);
	if (pkt_keyid != keyid) {
		RTW_INFO("BIP key index error!\n");
		return _FAIL;
	}

	/* save packet number */
	_rtw_memcpy(&pkt_ipn, mme + 4, 6);
	pkt_ipn = le64_to_cpu(pkt_ipn);
	/* BIP packet number should bigger than previous BIP packet */
	if (pkt_ipn <= *ipn) { /* wrap around? */
		RTW_INFO("replay BIP packet\n");
		return _FAIL;
	}

	ori_len = flen - WLAN_HDR_A3_LEN + BIP_AAD_SIZE;
	BIP_AAD = rtw_zmalloc(ori_len);
	if (BIP_AAD == NULL) {
		RTW_INFO("BIP AAD allocate fail\n");
		return _FAIL;
	}

	/* mapping to wlan header */
	pwlanhdr = (struct rtw_ieee80211_hdr *)whdr_pos;

	/* save the frame body + MME (w/o mic) */
	_rtw_memcpy(BIP_AAD + BIP_AAD_SIZE,
		whdr_pos + WLAN_HDR_A3_LEN,
		flen - WLAN_HDR_A3_LEN - mic_len);

	/* conscruct AAD, copy frame control field */
	_rtw_memcpy(BIP_AAD, &pwlanhdr->frame_ctl, 2);
	ClearRetry(BIP_AAD);
	ClearPwrMgt(BIP_AAD);
	ClearMData(BIP_AAD);
	/* conscruct AAD, copy address 1 to address 3 */
	_rtw_memcpy(BIP_AAD + 2, GetAddr1Ptr((u8 *)pwlanhdr), 18);

	if (rtw_calculate_bip_mic(gmcs, whdr_pos,
			pkt_len, key, BIP_AAD, ori_len, mic) == _FAIL)
		goto BIP_exit;

	/* MIC field should be last 8 bytes of packet (packet without FCS) */
	if (_rtw_memcmp(mic, whdr_pos + flen - mic_len, mic_len)) {
		*ipn = pkt_ipn;
		res = _SUCCESS;
	} else
		RTW_INFO("BIP MIC error!\n");

#if 0
	/* management packet content */
	{
		int pp;
		RTW_INFO("pkt: ");
		RTW_INFO_DUMP("", whdr_pos, flen);
		RTW_INFO("\n");
		/* BIP AAD + management frame body + MME(MIC is zero) */
		RTW_INFO("AAD+PKT: ");
		RTW_INFO_DUMP("", BIP_AAD, ori_len);
		RTW_INFO("\n");
		/* show the MIC result */
		RTW_INFO("mic: ");
		RTW_INFO_DUMP("", mic, mic_len);
		RTW_INFO("\n");
	}
#endif

BIP_exit:

	rtw_mfree(BIP_AAD, ori_len);
	return res;
}

#endif /* CONFIG_IEEE80211W */

/* IV is encryption header index of packet,
 * PN is sequence number after correct mapping.
 */
u8 rtw_iv_to_pn(u8 *iv, u8 *pn, u8 *key_id, u32 enc_algo)
{
	/* iv and pn must be Little Endian format */
	switch (enc_algo) {
	case _TKIP_:
		*(pn)     = *(iv + 2);
		*(pn + 1) = *(iv);
		break;
	case _AES_:
	case _GCMP_:
	case _CCMP_256_:
	case _GCMP_256_:
		*(pn)     = *(iv);
		*(pn + 1) = *(iv + 1);
		break;
	default:
		return _FAIL;
	}

	*(pn + 2) = *(iv + 4);
	*(pn + 3) = *(iv + 5);
	*(pn + 4) = *(iv + 6);
	*(pn + 5) = *(iv + 7);

	if (key_id)
		*key_id = *(iv + 3) >> 6;

	return _SUCCESS;
}

u8 rtw_pn_to_iv(u8 *pn, u8 *iv, u8 key_id, u32 enc_algo)
{
	/* iv and pn must be Little Endian format */
	switch (enc_algo) {
	case _TKIP_:
		*(iv)     = *(pn + 1);
		*(iv + 1) = (*(pn + 1) | 0x20) & 0x7F;
		*(iv + 2) = *(pn);
		break;
	case _AES_:
	case _GCMP_:
	case _CCMP_256_:
	case _GCMP_256_:
		*(iv)     = *(pn);
		*(iv + 1) = *(pn + 1);
		*(iv + 2) = 0;
		break;
	default:
		return _FAIL;
	}

	*(iv + 3) = BIT(5) | ((key_id & 0x3) << 6);
	*(iv + 4) = *(pn + 2);
	*(iv + 5) = *(pn + 3);
	*(iv + 6) = *(pn + 4);
	*(iv + 7) = *(pn + 5);

	return _SUCCESS;
}

