diff options
Diffstat (limited to 'drivers/staging/vt6655/aes_ccmp.c')
| -rw-r--r-- | drivers/staging/vt6655/aes_ccmp.c | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/drivers/staging/vt6655/aes_ccmp.c b/drivers/staging/vt6655/aes_ccmp.c index 36081481c6d1..fc056fc61995 100644 --- a/drivers/staging/vt6655/aes_ccmp.c +++ b/drivers/staging/vt6655/aes_ccmp.c @@ -205,7 +205,7 @@ void AESv128(unsigned char *key, unsigned char *data, unsigned char *ciphertext) SubBytes(ciphertext, TmpdataA); ShiftRows(TmpdataA, TmpdataB); xor_128(TmpdataB, abyRoundKey, ciphertext); - } else // round 1 ~ 9 + } else /* round 1 ~ 9 */ { SubBytes(ciphertext, TmpdataA); ShiftRows(TmpdataA, TmpdataB); @@ -249,7 +249,7 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor unsigned char *pbyIV; unsigned char *pbyPayload; unsigned short wHLen = 22; - unsigned short wPayloadSize = wFrameSize - 8 - 8 - 4 - WLAN_HDR_ADDR3_LEN;//8 is IV, 8 is MIC, 4 is CRC + unsigned short wPayloadSize = wFrameSize - 8 - 8 - 4 - WLAN_HDR_ADDR3_LEN;/* 8 is IV, 8 is MIC, 4 is CRC */ bool bA4 = false; unsigned char byTmp; unsigned short wCnt; @@ -259,13 +259,13 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor if (WLAN_GET_FC_TODS(*(unsigned short *)pbyFrame) && WLAN_GET_FC_FROMDS(*(unsigned short *)pbyFrame)) { bA4 = true; - pbyIV += 6; // 6 is 802.11 address4 + pbyIV += 6; /* 6 is 802.11 address4 */ wHLen += 6; wPayloadSize -= 6; } - pbyPayload = pbyIV + 8; //IV-length + pbyPayload = pbyIV + 8; /* IV-length */ - abyNonce[0] = 0x00; //now is 0, if Qos here will be priority + abyNonce[0] = 0x00; /* now is 0, if Qos here will be priority */ memcpy(&(abyNonce[1]), pMACHeader->abyAddr2, ETH_ALEN); abyNonce[7] = pbyIV[7]; abyNonce[8] = pbyIV[6]; @@ -274,13 +274,13 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor abyNonce[11] = pbyIV[1]; abyNonce[12] = pbyIV[0]; - //MIC_IV + /* MIC_IV */ MIC_IV[0] = 0x59; memcpy(&(MIC_IV[1]), &(abyNonce[0]), 13); MIC_IV[14] = (unsigned char)(wPayloadSize >> 8); MIC_IV[15] = (unsigned char)(wPayloadSize & 0xff); - //MIC_HDR1 + /* MIC_HDR1 */ MIC_HDR1[0] = (unsigned char)(wHLen >> 8); MIC_HDR1[1] = (unsigned char)(wHLen & 0xff); byTmp = (unsigned char)(pMACHeader->wFrameCtl & 0xff); @@ -291,7 +291,7 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor memcpy(&(MIC_HDR1[4]), pMACHeader->abyAddr1, ETH_ALEN); memcpy(&(MIC_HDR1[10]), pMACHeader->abyAddr2, ETH_ALEN); - //MIC_HDR2 + /* MIC_HDR2 */ memcpy(&(MIC_HDR2[0]), pMACHeader->abyAddr3, ETH_ALEN); byTmp = (unsigned char)(pMACHeader->wSeqCtl & 0xff); MIC_HDR2[6] = byTmp & 0x0f; @@ -309,7 +309,7 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor MIC_HDR2[14] = 0x00; MIC_HDR2[15] = 0x00; - //CCMP + /* CCMP */ AESv128(pbyRxKey, MIC_IV, abyMIC); for (kk = 0; kk < 16; kk++) { abyTmp[kk] = MIC_HDR1[kk] ^ abyMIC[kk]; @@ -341,9 +341,9 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor memcpy(pbyPayload, abyPlainText, 16); wCnt++; pbyPayload += 16; - } //for wPayloadSize + } /* for wPayloadSize */ - //last payload + /* last payload */ memcpy(&(abyLastCipher[0]), pbyPayload, jj); for (ii = jj; ii < 16; ii++) { abyLastCipher[ii] = 0x00; @@ -359,7 +359,7 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor memcpy(pbyPayload, abyPlainText, jj); pbyPayload += jj; - //for MIC calculation + /* for MIC calculation */ for (ii = jj; ii < 16; ii++) { abyPlainText[ii] = 0x00; } @@ -368,8 +368,8 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor } AESv128(pbyRxKey, abyTmp, abyMIC); - //=>above is the calculate MIC - //-------------------------------------------- + /* =>above is the calculate MIC */ + /* -------------------------------------------- */ wCnt = 0; abyCTRPLD[14] = (unsigned char)(wCnt >> 8); @@ -378,12 +378,11 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor for (kk = 0; kk < 8; kk++) { abyTmp[kk] = abyTmp[kk] ^ pbyPayload[kk]; } - //=>above is the dec-MIC from packet - //-------------------------------------------- + /* =>above is the dec-MIC from packet */ + /* -------------------------------------------- */ - if (!memcmp(abyMIC, abyTmp, 8)) { + if (!memcmp(abyMIC, abyTmp, 8)) return true; - } else { + else return false; - } } |