Staging: Add pristine upstream vt6656 driver sources to drivers/staging/vt6656.

Add pristine upstream vt6656 driver sources to drivers/staging/vt6656.  These
files were copied from the driver directory in the upstream source archive,
available here:

  http://www.viaarena.com/Driver/VT6656_Linux_src_v1.19_12_x86.zip

After copying, trailing whitespace was stripped.  This is GPL-licensed code.

Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 339 insertions, 0 deletions

diff --git a/drivers/staging/vt6656/wpa.c b/drivers/staging/vt6656/wpa.c
new file mode 100644
index 00000000000..754b9989ec0
--- /dev/null
+++ b/drivers/staging/vt6656/wpa.c
@@ -0,0 +1,339 @@
+/*
+ * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *
+ * File: wpa.c
+ *
+ * Purpose: Handles the Basic Service Set & Node Database functions
+ *
+ * Functions:
+ *      WPA_ParseRSN - Parse RSN IE.
+ *
+ * Revision History:
+ *
+ * Author: Kyle Hsu
+ *
+ * Date: July 14, 2003
+ *
+ */
+
+
+#if !defined(__TTYPE_H__)
+#include "ttype.h"
+#endif
+#if !defined(__UMEM_H__)
+#include "umem.h"
+#endif
+#if !defined(__TMACRO_H__)
+#include "tmacro.h"
+#endif
+#if !defined(__TETHER_H__)
+#include "tether.h"
+#endif
+#if !defined(__DEVICE_H__)
+#include "device.h"
+#endif
+#if !defined(__80211HDR_H__)
+#include "80211hdr.h"
+#endif
+#if !defined(__BSSDB_H__)
+#include "bssdb.h"
+#endif
+#if !defined(__WMGR_H__)
+#include "wmgr.h"
+#endif
+#if !defined(__WPA_H__)
+#include "wpa.h"
+#endif
+#if !defined(__80211MGR_H__)
+#include "80211mgr.h"
+#endif
+
+
+/*---------------------  Static Variables  --------------------------*/
+static int          msglevel                =MSG_LEVEL_INFO;
+
+const BYTE abyOUI00[4] = { 0x00, 0x50, 0xf2, 0x00 };
+const BYTE abyOUI01[4] = { 0x00, 0x50, 0xf2, 0x01 };
+const BYTE abyOUI02[4] = { 0x00, 0x50, 0xf2, 0x02 };
+const BYTE abyOUI03[4] = { 0x00, 0x50, 0xf2, 0x03 };
+const BYTE abyOUI04[4] = { 0x00, 0x50, 0xf2, 0x04 };
+const BYTE abyOUI05[4] = { 0x00, 0x50, 0xf2, 0x05 };
+
+
+/*+
+ *
+ * Description:
+ *    Clear RSN information in BSSList.
+ *
+ * Parameters:
+ *  In:
+ *      pBSSList - BSS list.
+ *  Out:
+ *      none
+ *
+ * Return Value: none.
+ *
+-*/
+
+VOID
+WPA_ClearRSN (
+    IN PKnownBSS        pBSSList
+    )
+{
+    int ii;
+    pBSSList->byGKType = WPA_TKIP;
+    for (ii=0; ii < 4; ii ++)
+        pBSSList->abyPKType[ii] = WPA_TKIP;
+    pBSSList->wPKCount = 0;
+    for (ii=0; ii < 4; ii ++)
+        pBSSList->abyAuthType[ii] = WPA_AUTH_IEEE802_1X;
+    pBSSList->wAuthCount = 0;
+    pBSSList->byDefaultK_as_PK = 0;
+    pBSSList->byReplayIdx = 0;
+    pBSSList->sRSNCapObj.bRSNCapExist = FALSE;
+    pBSSList->sRSNCapObj.wRSNCap = 0;
+    pBSSList->bWPAValid = FALSE;
+}
+
+
+/*+
+ *
+ * Description:
+ *    Parse RSN IE.
+ *
+ * Parameters:
+ *  In:
+ *      pBSSList - BSS list.
+ *      pRSN - Pointer to the RSN IE.
+ *  Out:
+ *      none
+ *
+ * Return Value: none.
+ *
+-*/
+VOID
+WPA_ParseRSN (
+    IN PKnownBSS        pBSSList,
+    IN PWLAN_IE_RSN_EXT pRSN
+    )
+{
+    PWLAN_IE_RSN_AUTH  pIE_RSN_Auth = NULL;
+    int                i, j, m, n = 0;
+    PBYTE              pbyCaps;
+
+    WPA_ClearRSN(pBSSList);
+
+    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"WPA_ParseRSN: [%d]\n", pRSN->len);
+
+    // information element header makes sense
+    if ((pRSN->len >= 6) // oui1(4)+ver(2)
+         && (pRSN->byElementID == WLAN_EID_RSN_WPA) && MEMEqualMemory(pRSN->abyOUI, abyOUI01, 4)
+         && (pRSN->wVersion == 1)) {
+
+        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Legal RSN\n");
+        // update each variable if pRSN is long enough to contain the variable
+        if (pRSN->len >= 10) //oui1(4)+ver(2)+GKSuite(4)
+        {
+            if (MEMEqualMemory(pRSN->abyMulticast, abyOUI01, 4))
+                pBSSList->byGKType = WPA_WEP40;
+            else if (MEMEqualMemory(pRSN->abyMulticast, abyOUI02, 4))
+                pBSSList->byGKType = WPA_TKIP;
+            else if (MEMEqualMemory(pRSN->abyMulticast, abyOUI03, 4))
+                pBSSList->byGKType = WPA_AESWRAP;
+            else if (MEMEqualMemory(pRSN->abyMulticast, abyOUI04, 4))
+                pBSSList->byGKType = WPA_AESCCMP;
+            else if (MEMEqualMemory(pRSN->abyMulticast, abyOUI05, 4))
+                pBSSList->byGKType = WPA_WEP104;
+            else
+                // any vendor checks here
+                pBSSList->byGKType = WPA_NONE;
+
+            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"byGKType: %x\n", pBSSList->byGKType);
+        }
+
+        if (pRSN->len >= 12) //oui1(4)+ver(2)+GKS(4)+PKSCnt(2)
+        {
+            j = 0;
+            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wPKCount: %d, sizeof(pBSSList->abyPKType): %d\n", pRSN->wPKCount, sizeof(pBSSList->abyPKType));
+            for(i = 0; (i < pRSN->wPKCount) && (j < sizeof(pBSSList->abyPKType)/sizeof(BYTE)); i++) {
+                if(pRSN->len >= 12+i*4+4) { //oui1(4)+ver(2)+GKS(4)+PKSCnt(2)+PKS(4*i)
+                    if (MEMEqualMemory(pRSN->PKSList[i].abyOUI, abyOUI00, 4))
+                        pBSSList->abyPKType[j++] = WPA_NONE;
+                    else if (MEMEqualMemory(pRSN->PKSList[i].abyOUI, abyOUI02, 4))
+                        pBSSList->abyPKType[j++] = WPA_TKIP;
+                    else if (MEMEqualMemory(pRSN->PKSList[i].abyOUI, abyOUI03, 4))
+                        pBSSList->abyPKType[j++] = WPA_AESWRAP;
+                    else if (MEMEqualMemory(pRSN->PKSList[i].abyOUI, abyOUI04, 4))
+                        pBSSList->abyPKType[j++] = WPA_AESCCMP;
+                    else
+                        // any vendor checks here
+                        ;
+                }
+                else
+                    break;
+                //DBG_PRN_GRP14(("abyPKType[%d]: %X\n", j-1, pBSSList->abyPKType[j-1]));
+            } //for
+            pBSSList->wPKCount = (WORD)j;
+            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wPKCount: %d\n", pBSSList->wPKCount);
+        }
+
+        m = pRSN->wPKCount;
+        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"m: %d\n", m);
+        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"14+m*4: %d\n", 14+m*4);
+
+        if (pRSN->len >= 14+m*4) { //oui1(4)+ver(2)+GKS(4)+PKSCnt(2)+PKS(4*m)+AKC(2)
+            // overlay IE_RSN_Auth structure into correct place
+            pIE_RSN_Auth = (PWLAN_IE_RSN_AUTH) pRSN->PKSList[m].abyOUI;
+            j = 0;
+            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wAuthCount: %d, sizeof(pBSSList->abyAuthType): %d\n",
+                          pIE_RSN_Auth->wAuthCount, sizeof(pBSSList->abyAuthType));
+            for(i = 0; (i < pIE_RSN_Auth->wAuthCount) && (j < sizeof(pBSSList->abyAuthType)/sizeof(BYTE)); i++) {
+                if(pRSN->len >= 14+4+(m+i)*4) { //oui1(4)+ver(2)+GKS(4)+PKSCnt(2)+PKS(4*m)+AKC(2)+AKS(4*i)
+                    if (MEMEqualMemory(pIE_RSN_Auth->AuthKSList[i].abyOUI, abyOUI01, 4))
+                        pBSSList->abyAuthType[j++] = WPA_AUTH_IEEE802_1X;
+                    else if (MEMEqualMemory(pIE_RSN_Auth->AuthKSList[i].abyOUI, abyOUI02, 4))
+                        pBSSList->abyAuthType[j++] = WPA_AUTH_PSK;
+                    else
+                    // any vendor checks here
+                    ;
+                }
+                else
+                    break;
+                //DBG_PRN_GRP14(("abyAuthType[%d]: %X\n", j-1, pBSSList->abyAuthType[j-1]));
+            }
+            if(j > 0)
+                pBSSList->wAuthCount = (WORD)j;
+            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"wAuthCount: %d\n", pBSSList->wAuthCount);
+        }
+
+        if (pIE_RSN_Auth != NULL) {
+
+            n = pIE_RSN_Auth->wAuthCount;
+
+            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"n: %d\n", n);
+            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"14+4+(m+n)*4: %d\n", 14+4+(m+n)*4);
+
+            if(pRSN->len+2 >= 14+4+(m+n)*4) { //oui1(4)+ver(2)+GKS(4)+PKSCnt(2)+PKS(4*m)+AKC(2)+AKS(4*n)+Cap(2)
+                pbyCaps = (PBYTE)pIE_RSN_Auth->AuthKSList[n].abyOUI;
+                pBSSList->byDefaultK_as_PK = (*pbyCaps) & WPA_GROUPFLAG;
+                pBSSList->byReplayIdx = 2 << ((*pbyCaps >> WPA_REPLAYBITSSHIFT) & WPA_REPLAYBITS);
+                pBSSList->sRSNCapObj.bRSNCapExist = TRUE;
+                pBSSList->sRSNCapObj.wRSNCap = *(PWORD)pbyCaps;
+                //DBG_PRN_GRP14(("pbyCaps: %X\n", *pbyCaps));
+                //DBG_PRN_GRP14(("byDefaultK_as_PK: %X\n", pBSSList->byDefaultK_as_PK));
+                //DBG_PRN_GRP14(("byReplayIdx: %X\n", pBSSList->byReplayIdx));
+            }
+        }
+        pBSSList->bWPAValid = TRUE;
+    }
+}
+
+/*+
+ *
+ * Description:
+ *    Search RSN information in BSSList.
+ *
+ * Parameters:
+ *  In:
+ *      byCmd    - Search type
+ *      byEncrypt- Encrcypt Type
+ *      pBSSList - BSS list
+ *  Out:
+ *      none
+ *
+ * Return Value: none.
+ *
+-*/
+BOOL
+WPA_SearchRSN (
+    BYTE                byCmd,
+    BYTE                byEncrypt,
+    IN PKnownBSS        pBSSList
+    )
+{
+    int ii;
+    BYTE byPKType = WPA_NONE;
+
+    if (pBSSList->bWPAValid == FALSE)
+        return FALSE;
+
+    switch(byCmd) {
+    case 0:
+
+        if (byEncrypt != pBSSList->byGKType)
+            return FALSE;
+
+        if (pBSSList->wPKCount > 0) {
+            for (ii = 0; ii < pBSSList->wPKCount; ii ++) {
+                if (pBSSList->abyPKType[ii] == WPA_AESCCMP)
+                    byPKType = WPA_AESCCMP;
+                else if ((pBSSList->abyPKType[ii] == WPA_TKIP) && (byPKType != WPA_AESCCMP))
+                     byPKType = WPA_TKIP;
+                else if ((pBSSList->abyPKType[ii] == WPA_WEP40) && (byPKType != WPA_AESCCMP) && (byPKType != WPA_TKIP))
+                     byPKType = WPA_WEP40;
+                else if ((pBSSList->abyPKType[ii] == WPA_WEP104) && (byPKType != WPA_AESCCMP) && (byPKType != WPA_TKIP))
+                     byPKType = WPA_WEP104;
+            }
+            if (byEncrypt != byPKType)
+                return FALSE;
+        }
+        return TRUE;
+//        if (pBSSList->wAuthCount > 0)
+//            for (ii=0; ii < pBSSList->wAuthCount; ii ++)
+//                if (byAuth == pBSSList->abyAuthType[ii])
+//                    break;
+        break;
+
+    default:
+        break;
+    }
+    return FALSE;
+}
+
+/*+
+ *
+ * Description:
+ *    Check if RSN IE makes sense.
+ *
+ * Parameters:
+ *  In:
+ *      pRSN - Pointer to the RSN IE.
+ *  Out:
+ *      none
+ *
+ * Return Value: none.
+ *
+-*/
+BOOL
+WPAb_Is_RSN (
+    IN PWLAN_IE_RSN_EXT pRSN
+    )
+{
+    if (pRSN == NULL)
+        return FALSE;
+
+    if ((pRSN->len >= 6) && // oui1(4)+ver(2)
+        (pRSN->byElementID == WLAN_EID_RSN_WPA) && MEMEqualMemory(pRSN->abyOUI, abyOUI01, 4) &&
+        (pRSN->wVersion == 1)) {
+        return TRUE;
+    }
+    else
+        return FALSE;
+}
+