if (bcrc32initialized == 0)
crc32_init();
- crc = 0xffffffff; /* preload shift register, per CRC-32 spec */
+ 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 */
+ return ~crc; /* transmit complement, per CRC-32 spec */
}
/* Need to consider the fragment situation */
struct arc4context mycontext;
int curfragnum, length, index;
u32 keylength;
- u8 *pframe, *payload, *iv; /* wepkey */
+ u8 *pframe, *payload, *iv; /* wepkey */
u8 wepkey[16];
u8 hw_hdr_offset = 0;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
priority[0] = pri;
/* Michael MIC pseudo header: DA, SA, 3 x 0, Priority */
- if (header[1]&1) { /* ToDS == 1 */
- rtw_secmicappend23a(&micdata, &header[16], 6); /* DA */
- if (header[1]&2) /* From Ds == 1 */
+ if (header[1]&1) { /* ToDS == 1 */
+ rtw_secmicappend23a(&micdata, &header[16], 6); /* DA */
+ if (header[1]&2) /* From Ds == 1 */
rtw_secmicappend23a(&micdata, &header[24], 6);
else
rtw_secmicappend23a(&micdata, &header[10], 6);
- } else { /* ToDS == 0 */
- rtw_secmicappend23a(&micdata, &header[4], 6); /* DA */
- if (header[1]&2) /* From Ds == 1 */
+ } else { /* ToDS == 0 */
+ rtw_secmicappend23a(&micdata, &header[4], 6); /* DA */
+ if (header[1]&2) /* From Ds == 1 */
rtw_secmicappend23a(&micdata, &header[16], 6);
else
rtw_secmicappend23a(&micdata, &header[10], 6);
#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[] */
+/* 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 */
{
int i;
- /* Initialize the 80 bits of P1K[] from IV32 and TA[0..5] */
+ /* 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[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" */
+ p1k[4] += (unsigned short) i; /* avoid "slide attacks" */
}
}
static void phase2(u8 *rc4key, const u8 *tk, const u16 *p1k, u16 iv16)
{
int i;
- u16 PPK[6]; /* temporary key for mixing */
+ u16 PPK[6]; /* temporary key for mixing */
- /* Note: all adds in the PPK[] equations below are mod 2**16 */
+ /* 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[i] = p1k[i]; /* first, copy P1K to PPK */
- PPK[5] = p1k[4] + iv16; /* next, add in IV16 */
+ 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 */
+ /* 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 */
+ /* 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[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}. */
+ /* 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[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) */
+ /* 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]);
phase2(&rc4key[0], prwskey, (u16 *)&ttkey[0], pnl);
- if ((curfragnum + 1) == pattrib->nr_frags) { /* 4 the last fragment */
+ if ((curfragnum + 1) == pattrib->nr_frags) { /* 4 the last fragment */
length = (pattrib->last_txcmdsz -
pattrib->hdrlen -
pattrib->iv_len -
"pattrib->iv_len =%x, pattrib->icv_len =%x\n",
pattrib->iv_len,
pattrib->icv_len);
- *((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));/* modified by Amy*/
+ *((u32 *)crc) = cpu_to_le32(getcrc32(payload, length)); /* modified by Amy */
arcfour_init(&mycontext, rc4key, 16);
arcfour_encrypt(&mycontext, payload, payload, length);
pattrib->iv_len -
pattrib->icv_len);
- *((u32 *)crc) = cpu_to_le32(getcrc32(payload, length));/* modified by Amy*/
+ *((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);
add1b[i] = 0x00;
}
- swap_halfs[0] = in[2]; /* Swap halfs */
+ 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[0] = in[3]; /* Rotate left 8 bits */
rotl[1] = in[0];
rotl[2] = in[1];
rotl[3] = in[2];
xor_32(in, add1bf7, rotr);
- temp[0] = rotr[0]; /* Rotate right 8 bits */
+ temp[0] = rotr[0]; /* Rotate right 8 bits */
rotr[0] = rotr[1];
rotr[1] = rotr[2];
rotr[2] = rotr[3];
mic_iv[0] = 0x59;
if (qc_exists && a4_exists)
- mic_iv[1] = mpdu[30] & 0x0f; /* QoS_TC */
+ mic_iv[1] = mpdu[30] & 0x0f; /* QoS_TC */
if (qc_exists && !a4_exists)
- mic_iv[1] = mpdu[24] & 0x0f; /* mute bits 7-4 */
+ mic_iv[1] = mpdu[24] & 0x0f; /* mute bits 7-4 */
if (!qc_exists)
mic_iv[1] = 0x00;
for (i = 2; i < 8; i++)
{
mic_header1[0] = (u8)((header_length - 2) / 256);
mic_header1[1] = (u8)((header_length - 2) % 256);
- 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[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[10] = mpdu[10]; /* A2 */
mic_header1[11] = mpdu[11];
mic_header1[12] = mpdu[12];
mic_header1[13] = mpdu[13];
}
/************************************************/
- /* construct_mic_header2() */
+/* construct_mic_header2() */
/* Builds the last MIC header block from */
/* header fields. */
/************************************************/
for (i = 0; i < 16; i++)
mic_header2[i] = 0x00;
- mic_header2[0] = mpdu[16]; /* A3 */
+ mic_header2[0] = mpdu[16]; /* A3 */
mic_header2[1] = mpdu[17];
mic_header2[2] = mpdu[18];
mic_header2[3] = mpdu[19];
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) {
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;
i = 0;
- ctr_preload[0] = 0x01; /* flag */
+ ctr_preload[0] = 0x01; /* flag */
if (qc_exists && a4_exists)
- ctr_preload[1] = mpdu[30] & 0x0f; /* QoC_Control */
+ ctr_preload[1] = mpdu[30] & 0x0f; /* QoC_Control */
if (qc_exists && !a4_exists)
ctr_preload[1] = mpdu[24] & 0x0f;
for (i = 2; i < 8; i++)
- ctr_preload[i] = mpdu[i + 8]; /* ctr_preload[2:7] = A2[0:5] = mpdu[10:15] */
+ ctr_preload[i] = mpdu[i + 8]; /* ctr_preload[2:7] = A2[0:5] = mpdu[10:15] */
for (i = 8; i < 14; i++)
- ctr_preload[i] = pn_vector[13 - i]; /* ctr_preload[8:13] = PN[5:0] */
+ ctr_preload[i] = pn_vector[13 - i]; /* ctr_preload[8:13] = PN[5:0] */
ctr_preload[14] = (unsigned char) (c / 256); /* Ctr */
ctr_preload[15] = (unsigned char) (c % 256);
int rtw_aes_encrypt23a(struct rtw_adapter *padapter,
struct xmit_frame *pxmitframe)
-{ /* exclude ICV */
+{ /* exclude ICV */
/* Intermediate Buffers */
int curfragnum, length;
u32 prwskeylen;
- u8 *pframe, *prwskey; /* *payload,*iv */
+ u8 *pframe, *prwskey; /* *payload, *iv */
u8 hw_hdr_offset = 0;
struct sta_info *stainfo;
struct pkt_attrib *pattrib = &pxmitframe->attrib;
qc_exists = 0;
}
- /* now, decrypt pframe with hdrlen offset and plen long */
+ /* now, decrypt pframe with hdrlen offset and plen long */
payload_index = hdrlen + 8; /* 8 is for extiv */
struct security_priv *psecuritypriv = &padapter->securitypriv;
struct sk_buff *skb = precvframe->pkt;
int length;
- u8 *pframe, *prwskey; /* *payload,*iv */
+ u8 *pframe, *prwskey; /* *payload, *iv */
int res = _SUCCESS;
pframe = skb->data;
"rtw_aes_decrypt23a: stainfo!= NULL!!!\n");
if (is_multicast_ether_addr(prxattrib->ra)) {
- /* in concurrent we should use sw decrypt in group key,
- so we remove this message */
+ /* in concurrent we should use sw decrypt in
+ * group key, so we remove this message
+ */
if (!psecuritypriv->binstallGrpkey) {
res = _FAIL;
DBG_8723A("%s:rx bc/mc packets, but didn't install "
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