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path: root/drivers/staging/rtl8188eu/core/rtw_security.c
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Diffstat (limited to 'drivers/staging/rtl8188eu/core/rtw_security.c')
-rw-r--r--drivers/staging/rtl8188eu/core/rtw_security.c157
1 files changed, 79 insertions, 78 deletions
diff --git a/drivers/staging/rtl8188eu/core/rtw_security.c b/drivers/staging/rtl8188eu/core/rtw_security.c
index 435c0fbec54a..78a8ac60bf3d 100644
--- a/drivers/staging/rtl8188eu/core/rtw_security.c
+++ b/drivers/staging/rtl8188eu/core/rtw_security.c
@@ -80,9 +80,9 @@ 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);
+ 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)
@@ -129,12 +129,12 @@ static __le32 getcrc32(u8 *buf, int len)
/*
Need to consider the fragment situation
*/
-void rtw_wep_encrypt(struct adapter *padapter, u8 *pxmitframe)
+void rtw_wep_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
{
int curfragnum, length;
u8 *pframe;
u8 hw_hdr_offset = 0;
- struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
+ struct pkt_attrib *pattrib = &pxmitframe->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
const int keyindex = psecuritypriv->dot11PrivacyKeyIndex;
@@ -142,16 +142,16 @@ void rtw_wep_encrypt(struct adapter *padapter, u8 *pxmitframe)
struct sk_buff *skb;
struct lib80211_crypto_ops *crypto_ops;
- if (((struct xmit_frame *)pxmitframe)->buf_addr == NULL)
+ if (pxmitframe->buf_addr == NULL)
return;
if ((pattrib->encrypt != _WEP40_) && (pattrib->encrypt != _WEP104_))
return;
hw_hdr_offset = TXDESC_SIZE +
- (((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
+ (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
- pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;
+ pframe = pxmitframe->buf_addr + hw_hdr_offset;
crypto_ops = lib80211_get_crypto_ops("WEP");
@@ -198,13 +198,13 @@ free_crypto_private:
crypto_ops->deinit(crypto_private);
}
-int rtw_wep_decrypt(struct adapter *padapter, u8 *precvframe)
+int rtw_wep_decrypt(struct adapter *padapter, struct recv_frame *precvframe)
{
- struct rx_pkt_attrib *prxattrib = &(((struct recv_frame *)precvframe)->attrib);
+ struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
if ((prxattrib->encrypt == _WEP40_) || (prxattrib->encrypt == _WEP104_)) {
struct security_priv *psecuritypriv = &padapter->securitypriv;
- struct sk_buff *skb = ((struct recv_frame *)precvframe)->pkt;
+ struct sk_buff *skb = precvframe->pkt;
u8 *pframe = skb->data;
void *crypto_private = NULL;
int status = _SUCCESS;
@@ -260,7 +260,7 @@ static u32 secmicgetuint32(u8 *p)
u32 res = 0;
for (i = 0; i < 4; i++)
- res |= ((u32)(*p++)) << (8*i);
+ res |= ((u32)(*p++)) << (8 * i);
return res;
}
@@ -296,7 +296,7 @@ void rtw_secmicsetkey(struct mic_data *pmicdata, u8 *key)
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->M |= ((unsigned long)b) << (8 * pmicdata->nBytesInM);
pmicdata->nBytesInM++;
/* Process the word if it is full. */
if (pmicdata->nBytesInM >= 4) {
@@ -337,7 +337,7 @@ void rtw_secgetmic(struct mic_data *pmicdata, u8 *dst)
rtw_secmicappendbyte(pmicdata, 0);
/* The appendByte function has already computed the result. */
secmicputuint32(dst, pmicdata->L);
- secmicputuint32(dst+4, pmicdata->R);
+ secmicputuint32(dst + 4, pmicdata->R);
/* Reset to the empty message. */
secmicclear(pmicdata);
}
@@ -351,15 +351,15 @@ void rtw_seccalctkipmic(u8 *key, u8 *header, u8 *data, u32 data_len, u8 *mic_cod
priority[0] = pri;
/* Michael MIC pseudo header: DA, SA, 3 x 0, Priority */
- if (header[1]&1) { /* ToDS == 1 */
+ if (header[1] & 1) { /* ToDS == 1 */
rtw_secmicappend(&micdata, &header[16], 6); /* DA */
- if (header[1]&2) /* From Ds == 1 */
+ 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 */
+ if (header[1] & 2) /* From Ds == 1 */
rtw_secmicappend(&micdata, &header[16], 6);
else
rtw_secmicappend(&micdata, &header[10], 6);
@@ -382,7 +382,7 @@ void rtw_seccalctkipmic(u8 *key, u8 *header, u8 *data, u32 data_len, u8 *mic_cod
#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)])
+#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)])
@@ -497,11 +497,11 @@ static void phase1(u16 *p1k, const u8 *tk, const u8 *ta, u32 iv32)
/* 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[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" */
}
}
@@ -566,13 +566,13 @@ static void phase2(u8 *rc4key, const u8 *tk, const u16 *p1k, u16 iv16)
/* 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]);
+ 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(struct adapter *padapter, u8 *pxmitframe)
+u32 rtw_tkip_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
{ /* exclude ICV */
u16 pnl;
u32 pnh;
@@ -586,17 +586,17 @@ u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe)
u8 *pframe, *payload, *iv, *prwskey;
union pn48 dot11txpn;
struct sta_info *stainfo;
- struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
+ struct pkt_attrib *pattrib = &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)
+ if (pxmitframe->buf_addr == NULL)
return _FAIL;
hw_hdr_offset = TXDESC_SIZE +
- (((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
- pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;
+ (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
+ pframe = pxmitframe->buf_addr + hw_hdr_offset;
/* 4 start to encrypt each fragment */
if (pattrib->encrypt == _TKIP_) {
if (pattrib->psta)
@@ -613,18 +613,18 @@ u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe)
prwskey = &stainfo->dot118021x_UncstKey.skey[0];
for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) {
- iv = pframe+pattrib->hdrlen;
- payload = pframe+pattrib->iv_len+pattrib->hdrlen;
+ 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);
+ 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;
+ if ((curfragnum + 1) == pattrib->nr_frags) { /* 4 the last fragment */
+ length = pattrib->last_txcmdsz - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;
RT_TRACE(_module_rtl871x_security_c_, _drv_info_,
("pattrib->iv_len=%x, pattrib->icv_len=%x\n",
pattrib->iv_len, pattrib->icv_len));
@@ -632,13 +632,13 @@ u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe)
arcfour_init(&mycontext, rc4key, 16);
arcfour_encrypt(&mycontext, payload, payload, length);
- arcfour_encrypt(&mycontext, payload+length, crc, 4);
+ arcfour_encrypt(&mycontext, payload + length, crc, 4);
} else {
- length = pxmitpriv->frag_len-pattrib->hdrlen-pattrib->iv_len-pattrib->icv_len;
+ length = pxmitpriv->frag_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;
*((__le32 *)crc) = getcrc32(payload, length);/* modified by Amy*/
arcfour_init(&mycontext, rc4key, 16);
arcfour_encrypt(&mycontext, payload, payload, length);
- arcfour_encrypt(&mycontext, payload+length, crc, 4);
+ arcfour_encrypt(&mycontext, payload + length, crc, 4);
pframe += pxmitpriv->frag_len;
pframe = (u8 *)round_up((size_t)(pframe), 4);
@@ -653,7 +653,7 @@ u32 rtw_tkip_encrypt(struct adapter *padapter, u8 *pxmitframe)
}
/* The hlen isn't include the IV */
-u32 rtw_tkip_decrypt(struct adapter *padapter, u8 *precvframe)
+u32 rtw_tkip_decrypt(struct adapter *padapter, struct recv_frame *precvframe)
{ /* exclude ICV */
u16 pnl;
u32 pnh;
@@ -666,12 +666,12 @@ u32 rtw_tkip_decrypt(struct adapter *padapter, u8 *precvframe)
u8 *pframe, *payload, *iv, *prwskey;
union pn48 dot11txpn;
struct sta_info *stainfo;
- struct rx_pkt_attrib *prxattrib = &((struct recv_frame *)precvframe)->attrib;
+ struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
u32 res = _SUCCESS;
- pframe = (unsigned char *)((struct recv_frame *)precvframe)->pkt->data;
+ pframe = (unsigned char *)precvframe->pkt->data;
/* 4 start to decrypt recvframe */
if (prxattrib->encrypt == _TKIP_) {
@@ -689,14 +689,14 @@ u32 rtw_tkip_decrypt(struct adapter *padapter, u8 *precvframe)
prwskey = &stainfo->dot118021x_UncstKey.skey[0];
}
- iv = pframe+prxattrib->hdrlen;
- payload = pframe+prxattrib->iv_len+prxattrib->hdrlen;
- length = ((struct recv_frame *)precvframe)->pkt->len-prxattrib->hdrlen-prxattrib->iv_len;
+ iv = pframe + prxattrib->hdrlen;
+ payload = pframe + prxattrib->iv_len + prxattrib->hdrlen;
+ length = precvframe->pkt->len - prxattrib->hdrlen - prxattrib->iv_len;
GET_TKIP_PN(iv, dot11txpn);
pnl = (u16)(dot11txpn.val);
- pnh = (u32)(dot11txpn.val>>16);
+ pnh = (u32)(dot11txpn.val >> 16);
phase1((u16 *)&ttkey[0], prwskey, &prxattrib->ta[0], pnh);
phase2(&rc4key[0], prwskey, (unsigned short *)&ttkey[0], pnl);
@@ -706,19 +706,19 @@ u32 rtw_tkip_decrypt(struct adapter *padapter, u8 *precvframe)
arcfour_init(&mycontext, rc4key, 16);
arcfour_encrypt(&mycontext, payload, payload, length);
- *((__le32 *)crc) = getcrc32(payload, length-4);
+ *((__le32 *)crc) = 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]) {
+ if (crc[3] != payload[length - 1] ||
+ crc[2] != payload[length - 2] ||
+ crc[1] != payload[length - 3] ||
+ crc[0] != payload[length - 4]) {
RT_TRACE(_module_rtl871x_security_c_, _drv_err_,
("rtw_wep_decrypt:icv error crc (%4ph)!=payload (%4ph)\n",
- &crc, &payload[length-4]));
+ &crc, &payload[length - 4]));
res = _FAIL;
}
} else {
- RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("rtw_tkip_decrypt: stainfo==NULL!!!\n"));
+ RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("%s: stainfo==NULL!!!\n", __func__));
res = _FAIL;
}
}
@@ -734,7 +734,7 @@ exit:
/******** SBOX Table *********/
/*****************************/
-static u8 sbox_table[256] = {
+static const 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,
@@ -817,7 +817,7 @@ static void next_key(u8 *key, int round)
{
u8 rcon;
u8 sbox_key[4];
- u8 rcon_table[12] = {
+ static const u8 rcon_table[12] = {
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
0x1b, 0x36, 0x36, 0x36
};
@@ -840,6 +840,7 @@ static void next_key(u8 *key, int round)
static void byte_sub(u8 *in, u8 *out)
{
int i;
+
for (i = 0; i < 16; i++)
out[i] = sbox(in[i]);
}
@@ -900,7 +901,7 @@ static void mix_column(u8 *in, u8 *out)
for (i = 3; i > 0; i--) { /* logical shift left 1 bit */
andf7[i] = andf7[i] << 1;
- if ((andf7[i-1] & 0x80) == 0x80)
+ if ((andf7[i - 1] & 0x80) == 0x80)
andf7[i] = (andf7[i] | 0x01);
}
andf7[0] = andf7[0] << 1;
@@ -1025,7 +1026,7 @@ static void construct_mic_header2(u8 *mic_header2, u8 *mpdu, int a4_exists, int
if (!qc_exists && a4_exists) {
for (i = 0; i < 6; i++)
- mic_header2[8+i] = mpdu[24+i]; /* A4 */
+ mic_header2[8 + i] = mpdu[24 + i]; /* A4 */
}
if (qc_exists && !a4_exists) {
@@ -1035,7 +1036,7 @@ static void construct_mic_header2(u8 *mic_header2, u8 *mpdu, int a4_exists, int
if (qc_exists && a4_exists) {
for (i = 0; i < 6; i++)
- mic_header2[8+i] = mpdu[24+i]; /* A4 */
+ mic_header2[8 + i] = mpdu[24 + i]; /* A4 */
mic_header2[14] = mpdu[30] & 0x0f;
mic_header2[15] = mpdu[31] & 0x00;
@@ -1128,11 +1129,11 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
}
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];
+ 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, plen, pn_vector);
@@ -1174,11 +1175,11 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
/* Insert MIC into payload */
for (j = 0; j < 8; j++)
- pframe[payload_index+j] = mic[j];
+ pframe[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, pn_vector, i+1);
+ construct_ctr_preload(ctr_preload, a4_exists, qc_exists, pframe, pn_vector, i + 1);
aes128k128d(key, ctr_preload, aes_out);
bitwise_xor(aes_out, &pframe[payload_index], chain_buffer);
for (j = 0; j < 16; j++)
@@ -1187,12 +1188,12 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
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);
+ construct_ctr_preload(ctr_preload, a4_exists, qc_exists, pframe, pn_vector, num_blocks + 1);
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] = 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++)
@@ -1204,7 +1205,7 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
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] = pframe[j + hdrlen + 8 + plen];
aes128k128d(key, ctr_preload, aes_out);
bitwise_xor(aes_out, padded_buffer, chain_buffer);
@@ -1213,7 +1214,7 @@ static int aes_cipher(u8 *key, uint hdrlen, u8 *pframe, uint plen)
return _SUCCESS;
}
-u32 rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe)
+u32 rtw_aes_encrypt(struct adapter *padapter, struct xmit_frame *pxmitframe)
{ /* exclude ICV */
/*static*/
@@ -1224,20 +1225,20 @@ u32 rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe)
u8 *pframe, *prwskey; /* *payload,*iv */
u8 hw_hdr_offset = 0;
struct sta_info *stainfo;
- struct pkt_attrib *pattrib = &((struct xmit_frame *)pxmitframe)->attrib;
+ struct pkt_attrib *pattrib = &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)
+ if (pxmitframe->buf_addr == NULL)
return _FAIL;
hw_hdr_offset = TXDESC_SIZE +
- (((struct xmit_frame *)pxmitframe)->pkt_offset * PACKET_OFFSET_SZ);
+ (pxmitframe->pkt_offset * PACKET_OFFSET_SZ);
- pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;
+ pframe = pxmitframe->buf_addr + hw_hdr_offset;
/* 4 start to encrypt each fragment */
if (pattrib->encrypt == _AES_) {
@@ -1254,12 +1255,12 @@ u32 rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe)
else
prwskey = &stainfo->dot118021x_UncstKey.skey[0];
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;
+ 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;
+ length = pxmitpriv->frag_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;
aes_cipher(prwskey, pattrib->hdrlen, pframe, length);
pframe += pxmitpriv->frag_len;
@@ -1275,9 +1276,9 @@ u32 rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe)
return res;
}
-u32 rtw_aes_decrypt(struct adapter *padapter, u8 *precvframe)
+u32 rtw_aes_decrypt(struct adapter *padapter, struct recv_frame *precvframe)
{
- struct rx_pkt_attrib *prxattrib = &((struct recv_frame *)precvframe)->attrib;
+ struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
u32 res = _SUCCESS;
/* 4 start to encrypt each fragment */
@@ -1287,7 +1288,7 @@ u32 rtw_aes_decrypt(struct adapter *padapter, u8 *precvframe)
if (stainfo != NULL) {
int key_idx;
const int key_length = 16, iv_len = 8, icv_len = 8;
- struct sk_buff *skb = ((struct recv_frame *)precvframe)->pkt;
+ struct sk_buff *skb = precvframe->pkt;
void *crypto_private = NULL;
u8 *key, *pframe = skb->data;
struct lib80211_crypto_ops *crypto_ops = lib80211_get_crypto_ops("CCMP");
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