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path: root/drivers/staging/rtl8723au/core/rtw_security.c
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Diffstat (limited to 'drivers/staging/rtl8723au/core/rtw_security.c')
-rw-r--r--drivers/staging/rtl8723au/core/rtw_security.c98
1 files changed, 37 insertions, 61 deletions
diff --git a/drivers/staging/rtl8723au/core/rtw_security.c b/drivers/staging/rtl8723au/core/rtw_security.c
index 76371ae69377..715a47414bdd 100644
--- a/drivers/staging/rtl8723au/core/rtw_security.c
+++ b/drivers/staging/rtl8723au/core/rtw_security.c
@@ -23,19 +23,18 @@
#define CRC32_POLY 0x04c11db7
-struct arc4context
-{
+struct arc4context {
u32 x;
u32 y;
u8 state[256];
};
-static void arcfour_init(struct arc4context *parc4ctx, u8 * key, u32 key_len)
+static void arcfour_init(struct arc4context *parc4ctx, u8 *key, u32 key_len)
{
u32 t, u;
u32 keyindex;
u32 stateindex;
- u8 * state;
+ u8 *state;
u32 counter;
state = parc4ctx->state;
@@ -45,8 +44,7 @@ static void arcfour_init(struct arc4context *parc4ctx, u8 * key, u32 key_len)
state[counter] = (u8)counter;
keyindex = 0;
stateindex = 0;
- for (counter = 0; counter < 256; counter++)
- {
+ for (counter = 0; counter < 256; counter++) {
t = state[counter];
stateindex = (stateindex + key[keyindex] + t) & 0xff;
u = state[stateindex];
@@ -62,7 +60,7 @@ static u32 arcfour_byte( struct arc4context *parc4ctx)
u32 x;
u32 y;
u32 sx, sy;
- u8 * state;
+ u8 *state;
state = parc4ctx->state;
x = (parc4ctx->x + 1) & 0xff;
@@ -78,8 +76,8 @@ static u32 arcfour_byte( struct arc4context *parc4ctx)
}
static void arcfour_encrypt( struct arc4context *parc4ctx,
- u8 * dest,
- u8 * src,
+ u8 *dest,
+ u8 *src,
u32 len)
{
u32 i;
@@ -114,8 +112,7 @@ static void crc32_init(void)
c = 0x12340000;
- for (i = 0; i < 256; ++i)
- {
+ 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);
@@ -221,7 +218,7 @@ void rtw_wep_decrypt23a(struct rtw_adapter *padapter,
u8 keyindex;
struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
- struct sk_buff * skb = precvframe->pkt;
+ struct sk_buff *skb = precvframe->pkt;
pframe = skb->data;
@@ -260,33 +257,29 @@ void rtw_wep_decrypt23a(struct rtw_adapter *padapter,
crc[1], payload[length - 3],
crc[0], payload[length - 4]));
}
-
- return;
}
/* 3 ===== TKIP related ===== */
-static u32 secmicgetuint32(u8 * p)
+static u32 secmicgetuint32(u8 *p)
/* Convert from Byte[] to u32 in a portable way */
{
s32 i;
u32 res = 0;
- for (i = 0; i<4; i++)
- {
+ for (i = 0; i<4; i++) {
res |= ((u32)(*p++)) << (8*i);
}
return res;
}
-static void secmicputuint32(u8 * p, u32 val)
+static void secmicputuint32(u8 *p, u32 val)
/* Convert from long to Byte[] in a portable way */
{
long i;
- for (i = 0; i<4; i++)
- {
+ for (i = 0; i<4; i++) {
*p++ = (u8) (val & 0xff);
val >>= 8;
}
@@ -304,7 +297,7 @@ static void secmicclear(struct mic_data *pmicdata)
}
-void rtw_secmicsetkey23a(struct mic_data *pmicdata, u8 * key)
+void rtw_secmicsetkey23a(struct mic_data *pmicdata, u8 *key)
{
/* Set the key */
@@ -322,8 +315,7 @@ void rtw_secmicappend23abyte23a(struct mic_data *pmicdata, u8 b)
pmicdata->M |= ((unsigned long)b) << (8*pmicdata->nBytesInM);
pmicdata->nBytesInM++;
/* Process the word if it is full. */
- if (pmicdata->nBytesInM >= 4)
- {
+ if (pmicdata->nBytesInM >= 4) {
pmicdata->L ^= pmicdata->M;
pmicdata->R ^= ROL32(pmicdata->L, 17);
pmicdata->L += pmicdata->R;
@@ -340,19 +332,18 @@ void rtw_secmicappend23abyte23a(struct mic_data *pmicdata, u8 b)
}
-void rtw_secmicappend23a(struct mic_data *pmicdata, u8 * src, u32 nbytes)
+void rtw_secmicappend23a(struct mic_data *pmicdata, u8 *src, u32 nbytes)
{
/* This is simple */
- while(nbytes > 0)
- {
+ while(nbytes > 0) {
rtw_secmicappend23abyte23a(pmicdata, *src++);
nbytes--;
}
}
-void rtw_secgetmic23a(struct mic_data *pmicdata, u8 * dst)
+void rtw_secgetmic23a(struct mic_data *pmicdata, u8 *dst)
{
/* Append the minimum padding */
@@ -362,8 +353,7 @@ void rtw_secgetmic23a(struct mic_data *pmicdata, u8 * dst)
rtw_secmicappend23abyte23a(pmicdata, 0);
rtw_secmicappend23abyte23a(pmicdata, 0);
/* and then zeroes until the length is a multiple of 4 */
- while(pmicdata->nBytesInM != 0)
- {
+ while(pmicdata->nBytesInM != 0) {
rtw_secmicappend23abyte23a(pmicdata, 0);
}
/* The appendByte function has already computed the result. */
@@ -374,7 +364,8 @@ void rtw_secgetmic23a(struct mic_data *pmicdata, u8 * dst)
}
-void rtw_seccalctkipmic23a(u8 * key, u8 *header, u8 *data, u32 data_len, u8 *mic_code, u8 pri)
+void rtw_seccalctkipmic23a(u8 *key, u8 *header, u8 *data, u32 data_len,
+ u8 *mic_code, u8 pri)
{
struct mic_data micdata;
@@ -531,8 +522,8 @@ 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 */
+ 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));
@@ -602,8 +593,7 @@ static void phase2(u8 *rc4key, const u8 *tk, const u16 *p1k, u16 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++)
- {
+ for (i = 0;i<6;i++) {
rc4key[4+2*i] = Lo8(PPK[i]);
rc4key[5+2*i] = Hi8(PPK[i]);
}
@@ -649,8 +639,7 @@ int rtw_tkip_encrypt23a(struct rtw_adapter *padapter,
if (stainfo!= NULL) {
- if (!(stainfo->state &_FW_LINKED))
- {
+ if (!(stainfo->state &_FW_LINKED)) {
DBG_8723A("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, stainfo->state);
return _FAIL;
}
@@ -728,7 +717,7 @@ int rtw_tkip_decrypt23a(struct rtw_adapter *padapter,
struct sta_info *stainfo;
struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
struct security_priv *psecuritypriv = &padapter->securitypriv;
- struct sk_buff * skb = precvframe->pkt;
+ struct sk_buff *skb = precvframe->pkt;
int res = _SUCCESS;
pframe = skb->data;
@@ -887,8 +876,7 @@ static void byte_sub(u8 *in, u8 *out)
{
int i;
- for (i = 0; i< 16; i++)
- {
+ for (i = 0; i< 16; i++) {
out[i] = sbox(in[i]);
}
@@ -928,8 +916,7 @@ static void mix_column(u8 *in, u8 *out)
u8 temp[4];
u8 tempb[4];
- for (i = 0 ; i<4; i++)
- {
+ for (i = 0 ; i<4; i++) {
if ((in[i] & 0x80) == 0x80)
add1b[i] = 0x1b;
else
@@ -951,11 +938,9 @@ static void mix_column(u8 *in, u8 *out)
andf7[2] = in[2] & 0x7f;
andf7[3] = in[3] & 0x7f;
- for (i = 3; i>0; i--) /* logical shift left 1 bit */
- {
+ 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);
}
}
@@ -988,21 +973,15 @@ static void aes128k128d(u8 *key, u8 *data, u8 *ciphertext)
for (i = 0; i<16; i++) round_key[i] = key[i];
- for (round = 0; round < 11; round++)
- {
- if (round == 0)
- {
+ for (round = 0; round < 11; round++) {
+ if (round == 0) {
xor_128(round_key, data, ciphertext);
next_key(round_key, round);
- }
- else if (round == 10)
- {
+ } else if (round == 10) {
byte_sub(ciphertext, intermediatea);
shift_row(intermediatea, intermediateb);
xor_128(intermediateb, round_key, ciphertext);
- }
- else /* 1 - 9 */
- {
+ } else { /* 1 - 9 */
byte_sub(ciphertext, intermediatea);
shift_row(intermediatea, intermediateb);
mix_column(&intermediateb[0], &intermediatea[0]);
@@ -1088,20 +1067,17 @@ static void construct_mic_header2(u8 *mic_header2, u8 *mpdu, int a4_exists,
mic_header2[6] = 0x00;
mic_header2[7] = 0x00; /* mpdu[23]; */
- if (!qc_exists && a4_exists)
- {
+ if (!qc_exists && a4_exists) {
for (i = 0;i<6;i++) mic_header2[8+i] = mpdu[24+i]; /* A4 */
}
- if (qc_exists && !a4_exists)
- {
+ 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)
- {
+ 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;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.