git.oblomov.eu Git - linux-2.6/blob - drivers/staging/vt6655/key.c

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *
  20  * File: key.c
  21  *
  22  * Purpose: Implement functions for 802.11i Key management
  23  *
  24  * Author: Jerry Chen
  25  *
  26  * Date: May 29, 2003
  27  *
  28  * Functions:
  29  *      KeyvInitTable - Init Key management table
  30  *      KeybGetKey - Get Key from table
  31  *      KeybSetKey - Set Key to table
  32  *      KeybRemoveKey - Remove Key from table
  33  *      KeybGetTransmitKey - Get Transmit Key from table
  34  *
  35  * Revision History:
  36  *
  37  */
  38
  39
  40 #if !defined(__TMACRO_H__)
  41 #include "tmacro.h"
  42 #endif
  43 #if !defined(__TBIT_H__)
  44 #include "tbit.h"
  45 #endif
  46 #if !defined(__KEY_H__)
  47 #include "key.h"
  48 #endif
  49 #if !defined(__UMEM_H__)
  50 #include "umem.h"
  51 #endif
  52 #if !defined(__MAC_H__)
  53 #include "mac.h"
  54 #endif
  55
  56
  57 /*---------------------  Static Definitions -------------------------*/
  58
  59 /*---------------------  Static Classes  ----------------------------*/
  60
  61 /*---------------------  Static Variables  --------------------------*/
  62 static int          msglevel                =MSG_LEVEL_INFO;
  63 //static int          msglevel                =MSG_LEVEL_DEBUG;
  64 /*---------------------  Static Functions  --------------------------*/
  65
  66 /*---------------------  Export Variables  --------------------------*/
  67
  68 /*---------------------  Static Definitions -------------------------*/
  69
  70 /*---------------------  Static Classes  ----------------------------*/
  71
  72 /*---------------------  Static Variables  --------------------------*/
  73
  74 /*---------------------  Static Functions  --------------------------*/
  75 static VOID
  76 s_vCheckKeyTableValid (PSKeyManagement pTable, DWORD_PTR dwIoBase)
  77 {
  78     int i;
  79
  80     for (i=0;i<MAX_KEY_TABLE;i++) {
  81         if ((pTable->KeyTable[i].bInUse == TRUE) &&
  82             (pTable->KeyTable[i].PairwiseKey.bKeyValid == FALSE) &&
  83             (pTable->KeyTable[i].GroupKey[0].bKeyValid == FALSE) &&
  84             (pTable->KeyTable[i].GroupKey[1].bKeyValid == FALSE) &&
  85             (pTable->KeyTable[i].GroupKey[2].bKeyValid == FALSE) &&
  86             (pTable->KeyTable[i].GroupKey[3].bKeyValid == FALSE)
  87             ) {
  88             pTable->KeyTable[i].bInUse = FALSE;
  89             pTable->KeyTable[i].wKeyCtl = 0;
  90             pTable->KeyTable[i].bSoftWEP = FALSE;
  91             MACvDisableKeyEntry(dwIoBase, i);
  92         }
  93     }
  94 }
  95
  96
  97 /*---------------------  Export Functions  --------------------------*/
  98
  99
 100 /*
 101  * Description: Init Key management table
 102  *
 103  * Parameters:
 104  *  In:
 105  *      pTable          - Pointer to Key table
 106  *  Out:
 107  *      none
 108  *
 109  * Return Value: none
 110  *
 111  */
 112 VOID KeyvInitTable (PSKeyManagement pTable, DWORD_PTR dwIoBase)
 113 {
 114     int i;
 115     int jj;
 116
 117     for (i=0;i<MAX_KEY_TABLE;i++) {
 118         pTable->KeyTable[i].bInUse = FALSE;
 119         pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
 120         pTable->KeyTable[i].PairwiseKey.pvKeyTable = (PVOID)&pTable->KeyTable[i];
 121         for (jj=0; jj < MAX_GROUP_KEY; jj++) {
 122             pTable->KeyTable[i].GroupKey[jj].bKeyValid = FALSE;
 123             pTable->KeyTable[i].GroupKey[jj].pvKeyTable = (PVOID)&pTable->KeyTable[i];
 124         }
 125         pTable->KeyTable[i].wKeyCtl = 0;
 126         pTable->KeyTable[i].dwGTKeyIndex = 0;
 127         pTable->KeyTable[i].bSoftWEP = FALSE;
 128         MACvDisableKeyEntry(dwIoBase, i);
 129     }
 130 }
 131
 132
 133 /*
 134  * Description: Get Key from table
 135  *
 136  * Parameters:
 137  *  In:
 138  *      pTable          - Pointer to Key table
 139  *      pbyBSSID        - BSSID of Key
 140  *      dwKeyIndex      - Key Index (0xFFFFFFFF means pairwise key)
 141  *  Out:
 142  *      pKey            - Key return
 143  *
 144  * Return Value: TRUE if found otherwise FALSE
 145  *
 146  */
 147 BOOL KeybGetKey (
 148     IN  PSKeyManagement pTable,
 149     IN  PBYTE           pbyBSSID,
 150     IN  DWORD           dwKeyIndex,
 151     OUT PSKeyItem       *pKey
 152     )
 153 {
 154     int i;
 155
 156     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetKey() \n");
 157
 158     *pKey = NULL;
 159     for (i=0;i<MAX_KEY_TABLE;i++) {
 160         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 161             IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
 162             if (dwKeyIndex == 0xFFFFFFFF) {
 163                 if (pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE) {
 164                     *pKey = &(pTable->KeyTable[i].PairwiseKey);
 165                     return (TRUE);
 166                 }
 167                 else {
 168                     return (FALSE);
 169                 }
 170             } else if (dwKeyIndex < MAX_GROUP_KEY) {
 171                 if (pTable->KeyTable[i].GroupKey[dwKeyIndex].bKeyValid == TRUE) {
 172                     *pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex]);
 173                     return (TRUE);
 174                 }
 175                 else {
 176                     return (FALSE);
 177                 }
 178             }
 179             else {
 180                 return (FALSE);
 181             }
 182         }
 183     }
 184     return (FALSE);
 185 }
 186
 187
 188 /*
 189  * Description: Set Key to table
 190  *
 191  * Parameters:
 192  *  In:
 193  *      pTable          - Pointer to Key table
 194  *      pbyBSSID        - BSSID of Key
 195  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 196  *      uKeyLength      - Key length
 197  *      KeyRSC          - Key RSC
 198  *      pbyKey          - Pointer to key
 199  *  Out:
 200  *      none
 201  *
 202  * Return Value: TRUE if success otherwise FALSE
 203  *
 204  */
 205 BOOL KeybSetKey (
 206     PSKeyManagement pTable,
 207     PBYTE           pbyBSSID,
 208     DWORD           dwKeyIndex,
 209     ULONG           uKeyLength,
 210     PQWORD          pKeyRSC,
 211     PBYTE           pbyKey,
 212     BYTE            byKeyDecMode,
 213     DWORD_PTR       dwIoBase,
 214     BYTE            byLocalID
 215     )
 216 {
 217     int         i,j;
 218     UINT        ii;
 219     PSKeyItem   pKey;
 220     UINT        uKeyIdx;
 221
 222     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetKey: %lX\n", dwKeyIndex);
 223
 224     j = (MAX_KEY_TABLE-1);
 225     for (i=0;i<(MAX_KEY_TABLE-1);i++) {
 226         if ((pTable->KeyTable[i].bInUse == FALSE) &&
 227             (j == (MAX_KEY_TABLE-1))) {
 228             // found empty table
 229             j = i;
 230         }
 231         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 232             IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
 233             // found table already exist
 234             if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 235                 // Pairwise key
 236                 pKey = &(pTable->KeyTable[i].PairwiseKey);
 237                 pTable->KeyTable[i].wKeyCtl &= 0xFFF0;          // clear pairwise key control filed
 238                 pTable->KeyTable[i].wKeyCtl |= byKeyDecMode;
 239                 uKeyIdx = 4;                                    // use HW key entry 4 for pairwise key
 240             } else {
 241                 // Group key
 242                 if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY)
 243                     return (FALSE);
 244                 pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF]);
 245                 if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 246                     // Group transmit key
 247                     pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
 248                     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[i].dwGTKeyIndex, i);
 249                 }
 250                 pTable->KeyTable[i].wKeyCtl &= 0xFF0F;          // clear group key control filed
 251                 pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
 252                 pTable->KeyTable[i].wKeyCtl |= 0x0040;          // use group key for group address
 253                 uKeyIdx = (dwKeyIndex & 0x000000FF);
 254             }
 255             pTable->KeyTable[i].wKeyCtl |= 0x8000;              // enable on-fly
 256
 257             pKey->bKeyValid = TRUE;
 258             pKey->uKeyLength = uKeyLength;
 259             pKey->dwKeyIndex = dwKeyIndex;
 260             pKey->byCipherSuite = byKeyDecMode;
 261             MEMvCopy(pKey->abyKey, pbyKey, uKeyLength);
 262             if (byKeyDecMode == KEY_CTL_WEP) {
 263                 if (uKeyLength == WLAN_WEP40_KEYLEN)
 264                     pKey->abyKey[15] &= 0x7F;
 265                 if (uKeyLength == WLAN_WEP104_KEYLEN)
 266                     pKey->abyKey[15] |= 0x80;
 267             }
 268             MACvSetKeyEntry(dwIoBase, pTable->KeyTable[i].wKeyCtl, i, uKeyIdx, pbyBSSID, (PDWORD)pKey->abyKey, byLocalID);
 269
 270             if ((dwKeyIndex & USE_KEYRSC) == 0) {
 271                 // RSC set by NIC
 272                 ZERO_MEMORY(&(pKey->KeyRSC), sizeof(QWORD));
 273             }
 274             else {
 275                 MEMvCopy(&(pKey->KeyRSC), pKeyRSC,  sizeof(QWORD));
 276             }
 277             pKey->dwTSC47_16 = 0;
 278             pKey->wTSC15_0 = 0;
 279
 280             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 281             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 282             //DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", pKey->uKeyLength);
 283             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 284             for (ii = 0; ii < pKey->uKeyLength; ii++) {
 285                 DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%02x ", pKey->abyKey[ii]);
 286             }
 287             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 288
 289             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n ", pKey->dwTSC47_16);
 290             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
 291             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n ", pKey->dwKeyIndex);
 292
 293             return (TRUE);
 294         }
 295     }
 296     if (j < (MAX_KEY_TABLE-1)) {
 297         MEMvCopy(pTable->KeyTable[j].abyBSSID,pbyBSSID,U_ETHER_ADDR_LEN);
 298         pTable->KeyTable[j].bInUse = TRUE;
 299         if ((dwKeyIndex & PAIRWISE_KEY) != 0)  {
 300             // Pairwise key
 301             pKey = &(pTable->KeyTable[j].PairwiseKey);
 302             pTable->KeyTable[j].wKeyCtl &= 0xFFF0;          // clear pairwise key control filed
 303             pTable->KeyTable[j].wKeyCtl |= byKeyDecMode;
 304             uKeyIdx = 4;                                    // use HW key entry 4 for pairwise key
 305         } else {
 306             // Group key
 307             if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY)
 308                 return (FALSE);
 309             pKey = &(pTable->KeyTable[j].GroupKey[dwKeyIndex & 0x000000FF]);
 310             if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 311                 // Group transmit key
 312                 pTable->KeyTable[j].dwGTKeyIndex = dwKeyIndex;
 313                 DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(N)[%lX]: %d\n", pTable->KeyTable[j].dwGTKeyIndex, j);
 314             }
 315             pTable->KeyTable[j].wKeyCtl &= 0xFF0F;          // clear group key control filed
 316             pTable->KeyTable[j].wKeyCtl |= (byKeyDecMode << 4);
 317             pTable->KeyTable[j].wKeyCtl |= 0x0040;          // use group key for group address
 318             uKeyIdx = (dwKeyIndex & 0x000000FF);
 319         }
 320         pTable->KeyTable[j].wKeyCtl |= 0x8000;              // enable on-fly
 321
 322         pKey->bKeyValid = TRUE;
 323         pKey->uKeyLength = uKeyLength;
 324         pKey->dwKeyIndex = dwKeyIndex;
 325         pKey->byCipherSuite = byKeyDecMode;
 326         MEMvCopy(pKey->abyKey, pbyKey, uKeyLength);
 327         if (byKeyDecMode == KEY_CTL_WEP) {
 328             if (uKeyLength == WLAN_WEP40_KEYLEN)
 329                 pKey->abyKey[15] &= 0x7F;
 330             if (uKeyLength == WLAN_WEP104_KEYLEN)
 331                 pKey->abyKey[15] |= 0x80;
 332         }
 333         MACvSetKeyEntry(dwIoBase, pTable->KeyTable[j].wKeyCtl, j, uKeyIdx, pbyBSSID, (PDWORD)pKey->abyKey, byLocalID);
 334
 335         if ((dwKeyIndex & USE_KEYRSC) == 0) {
 336             // RSC set by NIC
 337             ZERO_MEMORY(&(pKey->KeyRSC), sizeof(QWORD));
 338         }
 339         else {
 340             MEMvCopy(&(pKey->KeyRSC), pKeyRSC,  sizeof(QWORD));
 341         }
 342         pKey->dwTSC47_16 = 0;
 343         pKey->wTSC15_0 = 0;
 344
 345         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(N): \n");
 346         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 347         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", (int)pKey->uKeyLength);
 348         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 349         for (ii = 0; ii < pKey->uKeyLength; ii++) {
 350             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%02x ", pKey->abyKey[ii]);
 351         }
 352         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 353
 354         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n ", pKey->dwTSC47_16);
 355         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
 356         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n ", pKey->dwKeyIndex);
 357
 358         return (TRUE);
 359     }
 360     return (FALSE);
 361 }
 362
 363
 364 /*
 365  * Description: Remove Key from table
 366  *
 367  * Parameters:
 368  *  In:
 369  *      pTable          - Pointer to Key table
 370  *      pbyBSSID        - BSSID of Key
 371  *      dwKeyIndex      - Key Index (reference to NDIS DDK)
 372  *  Out:
 373  *      none
 374  *
 375  * Return Value: TRUE if success otherwise FALSE
 376  *
 377  */
 378 BOOL KeybRemoveKey (
 379     PSKeyManagement pTable,
 380     PBYTE           pbyBSSID,
 381     DWORD           dwKeyIndex,
 382     DWORD_PTR       dwIoBase
 383     )
 384 {
 385     int  i;
 386
 387     if (IS_BROADCAST_ADDRESS(pbyBSSID)) {
 388         // dealte all key
 389         if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 390             for (i=0;i<MAX_KEY_TABLE;i++) {
 391                 pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
 392             }
 393             s_vCheckKeyTableValid(pTable, dwIoBase);
 394             return TRUE;
 395         }
 396         else if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
 397             for (i=0;i<MAX_KEY_TABLE;i++) {
 398                 pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
 399                 if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[i].dwGTKeyIndex & 0x7FFFFFFF)) {
 400                     // remove Group transmit key
 401                     pTable->KeyTable[i].dwGTKeyIndex = 0;
 402                 }
 403             }
 404             s_vCheckKeyTableValid(pTable, dwIoBase);
 405             return TRUE;
 406         }
 407         else {
 408             return FALSE;
 409         }
 410     }
 411
 412     for (i=0;i<MAX_KEY_TABLE;i++) {
 413         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 414             IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
 415             if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 416                 pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
 417                 s_vCheckKeyTableValid(pTable, dwIoBase);
 418                 return (TRUE);
 419             }
 420             else if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
 421                 pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
 422                 if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[i].dwGTKeyIndex & 0x7FFFFFFF)) {
 423                     // remove Group transmit key
 424                     pTable->KeyTable[i].dwGTKeyIndex = 0;
 425                 }
 426                 s_vCheckKeyTableValid(pTable, dwIoBase);
 427                 return (TRUE);
 428             }
 429             else {
 430                 return (FALSE);
 431             }
 432         }
 433     }
 434     return (FALSE);
 435 }
 436
 437
 438 /*
 439  * Description: Remove Key from table
 440  *
 441  * Parameters:
 442  *  In:
 443  *      pTable          - Pointer to Key table
 444  *      pbyBSSID        - BSSID of Key
 445  *  Out:
 446  *      none
 447  *
 448  * Return Value: TRUE if success otherwise FALSE
 449  *
 450  */
 451 BOOL KeybRemoveAllKey (
 452     PSKeyManagement pTable,
 453     PBYTE           pbyBSSID,
 454     DWORD_PTR       dwIoBase
 455     )
 456 {
 457     int  i,u;
 458
 459     for (i=0;i<MAX_KEY_TABLE;i++) {
 460         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 461             IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
 462             pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
 463             for(u=0;u<MAX_GROUP_KEY;u++) {
 464                 pTable->KeyTable[i].GroupKey[u].bKeyValid = FALSE;
 465             }
 466             pTable->KeyTable[i].dwGTKeyIndex = 0;
 467             s_vCheckKeyTableValid(pTable, dwIoBase);
 468             return (TRUE);
 469         }
 470     }
 471     return (FALSE);
 472 }
 473
 474 /*
 475  * Description: Remove WEP Key from table
 476  *
 477  * Parameters:
 478  *  In:
 479  *      pTable          - Pointer to Key table
 480  *  Out:
 481  *      none
 482  *
 483  * Return Value: TRUE if success otherwise FALSE
 484  *
 485  */
 486 VOID KeyvRemoveWEPKey (
 487     PSKeyManagement pTable,
 488     DWORD           dwKeyIndex,
 489     DWORD_PTR       dwIoBase
 490     )
 491 {
 492
 493    if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
 494         if (pTable->KeyTable[MAX_KEY_TABLE-1].bInUse == TRUE) {
 495             if (pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF].byCipherSuite == KEY_CTL_WEP) {
 496                 pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
 497                 if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex & 0x7FFFFFFF)) {
 498                     // remove Group transmit key
 499                     pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex = 0;
 500                 }
 501             }
 502         }
 503         s_vCheckKeyTableValid(pTable, dwIoBase);
 504     }
 505     return;
 506 }
 507
 508 VOID KeyvRemoveAllWEPKey (
 509     PSKeyManagement pTable,
 510     DWORD_PTR       dwIoBase
 511     )
 512 {
 513     int i;
 514
 515     for(i=0;i<MAX_GROUP_KEY;i++) {
 516         KeyvRemoveWEPKey(pTable, i, dwIoBase);
 517     }
 518 }
 519
 520 /*
 521  * Description: Get Transmit Key from table
 522  *
 523  * Parameters:
 524  *  In:
 525  *      pTable          - Pointer to Key table
 526  *      pbyBSSID        - BSSID of Key
 527  *  Out:
 528  *      pKey            - Key return
 529  *
 530  * Return Value: TRUE if found otherwise FALSE
 531  *
 532  */
 533 BOOL KeybGetTransmitKey (
 534     IN  PSKeyManagement pTable,
 535     IN  PBYTE           pbyBSSID,
 536     IN  DWORD           dwKeyType,
 537     OUT PSKeyItem       *pKey
 538     )
 539 {
 540     int i, ii;
 541
 542     *pKey = NULL;
 543     for (i=0;i<MAX_KEY_TABLE;i++) {
 544         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 545             IS_ETH_ADDRESS_EQUAL(pTable->KeyTable[i].abyBSSID,pbyBSSID)) {
 546
 547             if (dwKeyType == PAIRWISE_KEY) {
 548
 549                 if (pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE) {
 550                     *pKey = &(pTable->KeyTable[i].PairwiseKey);
 551
 552                     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetTransmitKey:");
 553                     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PAIRWISE_KEY: KeyTable.abyBSSID: ");
 554                     for (ii = 0; ii < 6; ii++) {
 555                         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
 556                     }
 557                     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 558
 559
 560                     return (TRUE);
 561                 }
 562                 else {
 563                     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PairwiseKey.bKeyValid == FALSE\n");
 564                     return (FALSE);
 565                 }
 566             } // End of Type == PAIRWISE
 567             else {
 568                 if (pTable->KeyTable[i].dwGTKeyIndex == 0) {
 569                     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ERROR: dwGTKeyIndex == 0 !!!\n");
 570                     return FALSE;
 571                 }
 572                 if (pTable->KeyTable[i].GroupKey[(pTable->KeyTable[i].dwGTKeyIndex&0x000000FF)].bKeyValid == TRUE) {
 573                     *pKey = &(pTable->KeyTable[i].GroupKey[(pTable->KeyTable[i].dwGTKeyIndex&0x000000FF)]);
 574
 575                         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetTransmitKey:");
 576                         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GROUP_KEY: KeyTable.abyBSSID\n");
 577                         for (ii = 0; ii < 6; ii++) {
 578                             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
 579                         }
 580                         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 581                         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwGTKeyIndex: %lX\n", pTable->KeyTable[i].dwGTKeyIndex);
 582
 583                     return (TRUE);
 584                 }
 585                 else {
 586                     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GroupKey.bKeyValid == FALSE\n");
 587                     return (FALSE);
 588                 }
 589             } // End of Type = GROUP
 590         } // BSSID match
 591     }
 592     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ERROR: NO Match BSSID !!! ");
 593     for (ii = 0; ii < 6; ii++) {
 594         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%02x ", *(pbyBSSID+ii));
 595     }
 596     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 597     return (FALSE);
 598 }
 599
 600
 601 /*
 602  * Description: Check Pairewise Key
 603  *
 604  * Parameters:
 605  *  In:
 606  *      pTable          - Pointer to Key table
 607  *  Out:
 608  *      none
 609  *
 610  * Return Value: TRUE if found otherwise FALSE
 611  *
 612  */
 613 BOOL KeybCheckPairewiseKey (
 614     IN  PSKeyManagement pTable,
 615     OUT PSKeyItem       *pKey
 616     )
 617 {
 618     int i;
 619
 620     *pKey = NULL;
 621     for (i=0;i<MAX_KEY_TABLE;i++) {
 622         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 623             (pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE)) {
 624             *pKey = &(pTable->KeyTable[i].PairwiseKey);
 625             return (TRUE);
 626         }
 627     }
 628     return (FALSE);
 629 }
 630
 631 /*
 632  * Description: Set Key to table
 633  *
 634  * Parameters:
 635  *  In:
 636  *      pTable          - Pointer to Key table
 637  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 638  *      uKeyLength      - Key length
 639  *      KeyRSC          - Key RSC
 640  *      pbyKey          - Pointer to key
 641  *  Out:
 642  *      none
 643  *
 644  * Return Value: TRUE if success otherwise FALSE
 645  *
 646  */
 647 BOOL KeybSetDefaultKey (
 648     PSKeyManagement pTable,
 649     DWORD           dwKeyIndex,
 650     ULONG           uKeyLength,
 651     PQWORD          pKeyRSC,
 652     PBYTE           pbyKey,
 653     BYTE            byKeyDecMode,
 654     DWORD_PTR       dwIoBase,
 655     BYTE            byLocalID
 656     )
 657 {
 658     UINT        ii;
 659     PSKeyItem   pKey;
 660     UINT        uKeyIdx;
 661
 662     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetDefaultKey: %1x, %d \n", (int)dwKeyIndex, (int)uKeyLength);
 663
 664
 665     if ((dwKeyIndex & PAIRWISE_KEY) != 0) {                  // Pairwise key
 666         return (FALSE);
 667     } else if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY) {
 668         return (FALSE);
 669     }
 670
 671     pTable->KeyTable[MAX_KEY_TABLE-1].bInUse = TRUE;
 672     for(ii=0;ii<U_ETHER_ADDR_LEN;ii++)
 673         pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID[ii] = 0xFF;
 674
 675     // Group key
 676     pKey = &(pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF]);
 677     if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 678         // Group transmit key
 679         pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex = dwKeyIndex;
 680         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex, MAX_KEY_TABLE-1);
 681
 682     }
 683     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl &= 0x7F00;          // clear all key control filed
 684     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= (byKeyDecMode << 4);
 685     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= (byKeyDecMode);
 686     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0x0044;          // use group key for all address
 687     uKeyIdx = (dwKeyIndex & 0x000000FF);
 688
 689     if ((uKeyLength == WLAN_WEP232_KEYLEN) &&
 690         (byKeyDecMode == KEY_CTL_WEP)) {
 691         pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0x4000;              // disable on-fly disable address match
 692         pTable->KeyTable[MAX_KEY_TABLE-1].bSoftWEP = TRUE;
 693     } else {
 694         if (pTable->KeyTable[MAX_KEY_TABLE-1].bSoftWEP == FALSE)
 695             pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0xC000;          // enable on-fly disable address match
 696     }
 697
 698     pKey->bKeyValid = TRUE;
 699     pKey->uKeyLength = uKeyLength;
 700     pKey->dwKeyIndex = dwKeyIndex;
 701     pKey->byCipherSuite = byKeyDecMode;
 702     MEMvCopy(pKey->abyKey, pbyKey, uKeyLength);
 703     if (byKeyDecMode == KEY_CTL_WEP) {
 704         if (uKeyLength == WLAN_WEP40_KEYLEN)
 705             pKey->abyKey[15] &= 0x7F;
 706         if (uKeyLength == WLAN_WEP104_KEYLEN)
 707             pKey->abyKey[15] |= 0x80;
 708     }
 709     MACvSetKeyEntry(dwIoBase, pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl, MAX_KEY_TABLE-1, uKeyIdx, pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID, (PDWORD)pKey->abyKey, byLocalID);
 710
 711     if ((dwKeyIndex & USE_KEYRSC) == 0) {
 712         // RSC set by NIC
 713         ZERO_MEMORY(&(pKey->KeyRSC), sizeof(QWORD));
 714     } else {
 715         MEMvCopy(&(pKey->KeyRSC), pKeyRSC,  sizeof(QWORD));
 716     }
 717     pKey->dwTSC47_16 = 0;
 718     pKey->wTSC15_0 = 0;
 719
 720
 721     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 722     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n", pKey->bKeyValid);
 723     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n", (int)pKey->uKeyLength);
 724     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: \n");
 725     for (ii = 0; ii < pKey->uKeyLength; ii++) {
 726         DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x", pKey->abyKey[ii]);
 727     }
 728     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 729
 730     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n", pKey->dwTSC47_16);
 731     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n", pKey->wTSC15_0);
 732     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n", pKey->dwKeyIndex);
 733
 734     return (TRUE);
 735 }
 736
 737
 738 /*
 739  * Description: Set Key to table
 740  *
 741  * Parameters:
 742  *  In:
 743  *      pTable          - Pointer to Key table
 744  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 745  *      uKeyLength      - Key length
 746  *      KeyRSC          - Key RSC
 747  *      pbyKey          - Pointer to key
 748  *  Out:
 749  *      none
 750  *
 751  * Return Value: TRUE if success otherwise FALSE
 752  *
 753  */
 754 BOOL KeybSetAllGroupKey (
 755     PSKeyManagement pTable,
 756     DWORD           dwKeyIndex,
 757     ULONG           uKeyLength,
 758     PQWORD          pKeyRSC,
 759     PBYTE           pbyKey,
 760     BYTE            byKeyDecMode,
 761     DWORD_PTR       dwIoBase,
 762     BYTE            byLocalID
 763     )
 764 {
 765     int         i;
 766     UINT        ii;
 767     PSKeyItem   pKey;
 768     UINT        uKeyIdx;
 769
 770     DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetAllGroupKey: %lX\n", dwKeyIndex);
 771
 772
 773     if ((dwKeyIndex & PAIRWISE_KEY) != 0) {                  // Pairwise key
 774         return (FALSE);
 775     } else if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY) {
 776         return (FALSE);
 777     }
 778
 779     for (i=0; i < MAX_KEY_TABLE-1; i++) {
 780         if (pTable->KeyTable[i].bInUse == TRUE) {
 781             // found table already exist
 782             // Group key
 783             pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF]);
 784             if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 785                 // Group transmit key
 786                 pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
 787                 DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[i].dwGTKeyIndex, i);
 788
 789             }
 790             pTable->KeyTable[i].wKeyCtl &= 0xFF0F;          // clear group key control filed
 791             pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
 792             pTable->KeyTable[i].wKeyCtl |= 0x0040;          // use group key for group address
 793             uKeyIdx = (dwKeyIndex & 0x000000FF);
 794
 795             pTable->KeyTable[i].wKeyCtl |= 0x8000;              // enable on-fly
 796
 797             pKey->bKeyValid = TRUE;
 798             pKey->uKeyLength = uKeyLength;
 799             pKey->dwKeyIndex = dwKeyIndex;
 800             pKey->byCipherSuite = byKeyDecMode;
 801             MEMvCopy(pKey->abyKey, pbyKey, uKeyLength);
 802             if (byKeyDecMode == KEY_CTL_WEP) {
 803                 if (uKeyLength == WLAN_WEP40_KEYLEN)
 804                     pKey->abyKey[15] &= 0x7F;
 805                 if (uKeyLength == WLAN_WEP104_KEYLEN)
 806                     pKey->abyKey[15] |= 0x80;
 807             }
 808             MACvSetKeyEntry(dwIoBase, pTable->KeyTable[i].wKeyCtl, i, uKeyIdx, pTable->KeyTable[i].abyBSSID, (PDWORD)pKey->abyKey, byLocalID);
 809
 810             if ((dwKeyIndex & USE_KEYRSC) == 0) {
 811                 // RSC set by NIC
 812                 ZERO_MEMORY(&(pKey->KeyRSC), sizeof(QWORD));
 813             }
 814             else {
 815                 MEMvCopy(&(pKey->KeyRSC), pKeyRSC,  sizeof(QWORD));
 816             }
 817             pKey->dwTSC47_16 = 0;
 818             pKey->wTSC15_0 = 0;
 819
 820             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 821             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 822             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", (int)pKey->uKeyLength);
 823             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 824             for (ii = 0; ii < pKey->uKeyLength; ii++) {
 825                 DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%02x ", pKey->abyKey[ii]);
 826             }
 827             DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 828
 829             //DBG_PRN_GRP12(("pKey->dwTSC47_16: %lX\n ", pKey->dwTSC47_16));
 830             //DBG_PRN_GRP12(("pKey->wTSC15_0: %X\n ", pKey->wTSC15_0));
 831             //DBG_PRN_GRP12(("pKey->dwKeyIndex: %lX\n ", pKey->dwKeyIndex));
 832
 833         } // (pTable->KeyTable[i].bInUse == TRUE)
 834     }
 835     return (TRUE);
 836 }