From 95bfb1ae0d2e4a8c58b45f9ff40f4a71c6bbdc6e Mon Sep 17 00:00:00 2001 From: Malcolm Priestley Date: Tue, 27 Aug 2013 12:29:10 +0100 Subject: [PATCH] staging: vt6656: rxtx.c s_vFillTxKey clean up format and white space. Signed-off-by: Malcolm Priestley Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vt6656/rxtx.c | 175 ++++++++++++++++++---------------- 1 file changed, 93 insertions(+), 82 deletions(-) diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c index 273bd5d4ff29..54aa57634104 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -190,95 +190,106 @@ static void s_vFillTxKey(struct vnt_private *pDevice, u8 *pbyBuf, struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyHdrBuf; u32 dwRevIVCounter; - //Fill TXKEY - if (pTransmitKey == NULL) - return; - - dwRevIVCounter = cpu_to_le32(pDevice->dwIVCounter); - *pdwIV = pDevice->dwIVCounter; - pDevice->byKeyIndex = pTransmitKey->dwKeyIndex & 0xf; - - if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) { - if (pTransmitKey->uKeyLength == WLAN_WEP232_KEYLEN ){ - memcpy(pDevice->abyPRNG, (u8 *)&(dwRevIVCounter), 3); - memcpy(pDevice->abyPRNG+3, pTransmitKey->abyKey, pTransmitKey->uKeyLength); - } else { - memcpy(pbyBuf, (u8 *)&(dwRevIVCounter), 3); - memcpy(pbyBuf+3, pTransmitKey->abyKey, pTransmitKey->uKeyLength); - if(pTransmitKey->uKeyLength == WLAN_WEP40_KEYLEN) { - memcpy(pbyBuf+8, (u8 *)&(dwRevIVCounter), 3); - memcpy(pbyBuf+11, pTransmitKey->abyKey, pTransmitKey->uKeyLength); - } - memcpy(pDevice->abyPRNG, pbyBuf, 16); - } - // Append IV after Mac Header - *pdwIV &= WEP_IV_MASK;//00000000 11111111 11111111 11111111 - *pdwIV |= (u32)pDevice->byKeyIndex << 30; - *pdwIV = cpu_to_le32(*pdwIV); - pDevice->dwIVCounter++; - if (pDevice->dwIVCounter > WEP_IV_MASK) { - pDevice->dwIVCounter = 0; - } - } else if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) { - pTransmitKey->wTSC15_0++; - if (pTransmitKey->wTSC15_0 == 0) { - pTransmitKey->dwTSC47_16++; - } - TKIPvMixKey(pTransmitKey->abyKey, pDevice->abyCurrentNetAddr, - pTransmitKey->wTSC15_0, pTransmitKey->dwTSC47_16, pDevice->abyPRNG); - memcpy(pbyBuf, pDevice->abyPRNG, 16); - // Make IV - memcpy(pdwIV, pDevice->abyPRNG, 3); - - *(pbyIVHead+3) = (u8)(((pDevice->byKeyIndex << 6) & 0xc0) | 0x20); // 0x20 is ExtIV - // Append IV&ExtIV after Mac Header - *pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16); - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"vFillTxKey()---- pdwExtIV: %x\n", - *pdwExtIV); - - } else if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) { - pTransmitKey->wTSC15_0++; - if (pTransmitKey->wTSC15_0 == 0) { - pTransmitKey->dwTSC47_16++; - } - memcpy(pbyBuf, pTransmitKey->abyKey, 16); - - // Make IV - *pdwIV = 0; - *(pbyIVHead+3) = (u8)(((pDevice->byKeyIndex << 6) & 0xc0) | 0x20); // 0x20 is ExtIV - *pdwIV |= cpu_to_le16((u16)(pTransmitKey->wTSC15_0)); - //Append IV&ExtIV after Mac Header - *pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16); - - if (!mic_hdr) + /* Fill TXKEY */ + if (pTransmitKey == NULL) return; - /* MICHDR0 */ - mic_hdr->id = 0x59; - mic_hdr->payload_len = cpu_to_be16(wPayloadLen); - memcpy(mic_hdr->mic_addr2, pMACHeader->addr2, ETH_ALEN); + dwRevIVCounter = cpu_to_le32(pDevice->dwIVCounter); + *pdwIV = pDevice->dwIVCounter; + pDevice->byKeyIndex = pTransmitKey->dwKeyIndex & 0xf; - mic_hdr->tsc_47_16 = cpu_to_be32(pTransmitKey->dwTSC47_16); - mic_hdr->tsc_15_0 = cpu_to_be16(pTransmitKey->wTSC15_0); - - /* MICHDR1 */ - if (pDevice->bLongHeader) - mic_hdr->hlen = cpu_to_be16(28); - else - mic_hdr->hlen = cpu_to_be16(22); + if (pTransmitKey->byCipherSuite == KEY_CTL_WEP) { + if (pTransmitKey->uKeyLength == WLAN_WEP232_KEYLEN) { + memcpy(pDevice->abyPRNG, (u8 *)&dwRevIVCounter, 3); + memcpy(pDevice->abyPRNG + 3, pTransmitKey->abyKey, + pTransmitKey->uKeyLength); + } else { + memcpy(pbyBuf, (u8 *)&dwRevIVCounter, 3); + memcpy(pbyBuf + 3, pTransmitKey->abyKey, + pTransmitKey->uKeyLength); + if (pTransmitKey->uKeyLength == WLAN_WEP40_KEYLEN) { + memcpy(pbyBuf+8, (u8 *)&dwRevIVCounter, 3); + memcpy(pbyBuf+11, pTransmitKey->abyKey, + pTransmitKey->uKeyLength); + } + + memcpy(pDevice->abyPRNG, pbyBuf, 16); + } + /* Append IV after Mac Header */ + *pdwIV &= WEP_IV_MASK; + *pdwIV |= (u32)pDevice->byKeyIndex << 30; + *pdwIV = cpu_to_le32(*pdwIV); + + pDevice->dwIVCounter++; + if (pDevice->dwIVCounter > WEP_IV_MASK) + pDevice->dwIVCounter = 0; + } else if (pTransmitKey->byCipherSuite == KEY_CTL_TKIP) { + pTransmitKey->wTSC15_0++; + if (pTransmitKey->wTSC15_0 == 0) + pTransmitKey->dwTSC47_16++; + + TKIPvMixKey(pTransmitKey->abyKey, pDevice->abyCurrentNetAddr, + pTransmitKey->wTSC15_0, pTransmitKey->dwTSC47_16, + pDevice->abyPRNG); + memcpy(pbyBuf, pDevice->abyPRNG, 16); + + /* Make IV */ + memcpy(pdwIV, pDevice->abyPRNG, 3); + + *(pbyIVHead+3) = (u8)(((pDevice->byKeyIndex << 6) & + 0xc0) | 0x20); + /* Append IV&ExtIV after Mac Header */ + *pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16); + + DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO + "vFillTxKey()---- pdwExtIV: %x\n", *pdwExtIV); + + } else if (pTransmitKey->byCipherSuite == KEY_CTL_CCMP) { + pTransmitKey->wTSC15_0++; + if (pTransmitKey->wTSC15_0 == 0) + pTransmitKey->dwTSC47_16++; + + memcpy(pbyBuf, pTransmitKey->abyKey, 16); + + /* Make IV */ + *pdwIV = 0; + *(pbyIVHead+3) = (u8)(((pDevice->byKeyIndex << 6) & + 0xc0) | 0x20); + + *pdwIV |= cpu_to_le16((u16)(pTransmitKey->wTSC15_0)); + + /* Append IV&ExtIV after Mac Header */ + *pdwExtIV = cpu_to_le32(pTransmitKey->dwTSC47_16); + + if (!mic_hdr) + return; + + /* MICHDR0 */ + mic_hdr->id = 0x59; + mic_hdr->payload_len = cpu_to_be16(wPayloadLen); + memcpy(mic_hdr->mic_addr2, pMACHeader->addr2, ETH_ALEN); + + mic_hdr->tsc_47_16 = cpu_to_be32(pTransmitKey->dwTSC47_16); + mic_hdr->tsc_15_0 = cpu_to_be16(pTransmitKey->wTSC15_0); + + /* MICHDR1 */ + if (pDevice->bLongHeader) + mic_hdr->hlen = cpu_to_be16(28); + else + mic_hdr->hlen = cpu_to_be16(22); - memcpy(mic_hdr->addr1, pMACHeader->addr1, ETH_ALEN); - memcpy(mic_hdr->addr2, pMACHeader->addr2, ETH_ALEN); + memcpy(mic_hdr->addr1, pMACHeader->addr1, ETH_ALEN); + memcpy(mic_hdr->addr2, pMACHeader->addr2, ETH_ALEN); - /* MICHDR2 */ - memcpy(mic_hdr->addr3, pMACHeader->addr3, ETH_ALEN); - mic_hdr->frame_control = cpu_to_le16(pMACHeader->frame_control + /* MICHDR2 */ + memcpy(mic_hdr->addr3, pMACHeader->addr3, ETH_ALEN); + mic_hdr->frame_control = cpu_to_le16(pMACHeader->frame_control & 0xc78f); - mic_hdr->seq_ctrl = cpu_to_le16(pMACHeader->seq_ctrl & 0xf); + mic_hdr->seq_ctrl = cpu_to_le16(pMACHeader->seq_ctrl & 0xf); - if (pDevice->bLongHeader) - memcpy(mic_hdr->addr4, pMACHeader->addr4, ETH_ALEN); - } + if (pDevice->bLongHeader) + memcpy(mic_hdr->addr4, pMACHeader->addr4, ETH_ALEN); + } } static void s_vSWencryption(struct vnt_private *pDevice, -- 2.30.2