drivers/staging/vt6656/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 #include "mac.h"
  40 #include "tmacro.h"
  41 #include "key.h"
  42 #include "rndis.h"
  43 #include "control.h"
  44
  45 static int          msglevel                =MSG_LEVEL_INFO;
  46 //static int          msglevel                =MSG_LEVEL_DEBUG;
  47
  48 static void s_vCheckKeyTableValid(struct vnt_private *pDevice,
  49         PSKeyManagement pTable)
  50 {
  51         int i;
  52         u16 wLength = 0;
  53         u8 pbyData[MAX_KEY_TABLE];
  54
  55     for (i=0;i<MAX_KEY_TABLE;i++) {
  56         if ((pTable->KeyTable[i].bInUse == true) &&
  57             (pTable->KeyTable[i].PairwiseKey.bKeyValid == false) &&
  58             (pTable->KeyTable[i].GroupKey[0].bKeyValid == false) &&
  59             (pTable->KeyTable[i].GroupKey[1].bKeyValid == false) &&
  60             (pTable->KeyTable[i].GroupKey[2].bKeyValid == false) &&
  61             (pTable->KeyTable[i].GroupKey[3].bKeyValid == false)
  62             ) {
  63
  64             pTable->KeyTable[i].bInUse = false;
  65             pTable->KeyTable[i].wKeyCtl = 0;
  66             pTable->KeyTable[i].bSoftWEP = false;
  67             pbyData[wLength++] = (u8) i;
  68             //MACvDisableKeyEntry(pDevice, i);
  69         }
  70     }
  71     if ( wLength != 0 ) {
  72         CONTROLnsRequestOut(pDevice,
  73                             MESSAGE_TYPE_CLRKEYENTRY,
  74                             0,
  75                             0,
  76                             wLength,
  77                             pbyData
  78                             );
  79     }
  80
  81 }
  82
  83 /*
  84  * Description: Init Key management table
  85  *
  86  * Parameters:
  87  *  In:
  88  *      pTable          - Pointer to Key table
  89  *  Out:
  90  *      none
  91  *
  92  * Return Value: none
  93  *
  94  */
  95 void KeyvInitTable(struct vnt_private *pDevice, PSKeyManagement pTable)
  96 {
  97         int i, jj;
  98         u8 pbyData[MAX_KEY_TABLE+1];
  99
 100     spin_lock_irq(&pDevice->lock);
 101     for (i=0;i<MAX_KEY_TABLE;i++) {
 102         pTable->KeyTable[i].bInUse = false;
 103         pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
 104         pTable->KeyTable[i].PairwiseKey.pvKeyTable =
 105           (void *)&pTable->KeyTable[i];
 106         for (jj=0; jj < MAX_GROUP_KEY; jj++) {
 107             pTable->KeyTable[i].GroupKey[jj].bKeyValid = false;
 108             pTable->KeyTable[i].GroupKey[jj].pvKeyTable =
 109               (void *) &(pTable->KeyTable[i]);
 110         }
 111         pTable->KeyTable[i].wKeyCtl = 0;
 112         pTable->KeyTable[i].dwGTKeyIndex = 0;
 113         pTable->KeyTable[i].bSoftWEP = false;
 114         pbyData[i] = (u8) i;
 115     }
 116     pbyData[i] = (u8) i;
 117     CONTROLnsRequestOut(pDevice,
 118                         MESSAGE_TYPE_CLRKEYENTRY,
 119                         0,
 120                         0,
 121                         11,
 122                         pbyData
 123                         );
 124
 125     spin_unlock_irq(&pDevice->lock);
 126
 127     return;
 128 }
 129
 130 /*
 131  * Description: Get Key from table
 132  *
 133  * Parameters:
 134  *  In:
 135  *      pTable          - Pointer to Key table
 136  *      pbyBSSID        - BSSID of Key
 137  *      dwKeyIndex      - Key Index (0xFFFFFFFF means pairwise key)
 138  *  Out:
 139  *      pKey            - Key return
 140  *
 141  * Return Value: true if found otherwise false
 142  *
 143  */
 144 int KeybGetKey(PSKeyManagement pTable, u8 *pbyBSSID, u32 dwKeyIndex,
 145         PSKeyItem *pKey)
 146 {
 147         int i;
 148
 149         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetKey()\n");
 150
 151     *pKey = NULL;
 152     for (i=0;i<MAX_KEY_TABLE;i++) {
 153         if ((pTable->KeyTable[i].bInUse == true) &&
 154             ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 155             if (dwKeyIndex == 0xFFFFFFFF) {
 156                 if (pTable->KeyTable[i].PairwiseKey.bKeyValid == true) {
 157                     *pKey = &(pTable->KeyTable[i].PairwiseKey);
 158                     return (true);
 159                 }
 160                 else {
 161                     return (false);
 162                 }
 163             } else if (dwKeyIndex < MAX_GROUP_KEY) {
 164                 if (pTable->KeyTable[i].GroupKey[dwKeyIndex].bKeyValid == true) {
 165                     *pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex]);
 166                     return (true);
 167                 }
 168                 else {
 169                     return (false);
 170                 }
 171             }
 172             else {
 173                 return (false);
 174             }
 175         }
 176     }
 177     return (false);
 178 }
 179
 180 /*
 181  * Description: Set Key to table
 182  *
 183  * Parameters:
 184  *  In:
 185  *      pTable          - Pointer to Key table
 186  *      pbyBSSID        - BSSID of Key
 187  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 188  *      uKeyLength      - Key length
 189  *      KeyRSC          - Key RSC
 190  *      pbyKey          - Pointer to key
 191  *  Out:
 192  *      none
 193  *
 194  * Return Value: true if success otherwise false
 195  *
 196  */
 197 int KeybSetKey(struct vnt_private *pDevice, PSKeyManagement pTable,
 198         u8 *pbyBSSID, u32 dwKeyIndex, u32 uKeyLength, u64 *KeyRSC, u8 *pbyKey,
 199         u8 byKeyDecMode)
 200 {
 201         PSKeyItem   pKey;
 202         int i, j, ii;
 203         u32 uKeyIdx;
 204
 205         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
 206                 "Enter KeybSetKey: %X\n", dwKeyIndex);
 207
 208     j = (MAX_KEY_TABLE-1);
 209     for (i=0;i<(MAX_KEY_TABLE-1);i++) {
 210         if ((pTable->KeyTable[i].bInUse == false) &&
 211             (j == (MAX_KEY_TABLE-1))) {
 212             // found empty table
 213             j = i;
 214         }
 215         if ((pTable->KeyTable[i].bInUse == true) &&
 216             ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 217             // found table already exist
 218             if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 219                 // Pairwise key
 220                 pKey = &(pTable->KeyTable[i].PairwiseKey);
 221                 pTable->KeyTable[i].wKeyCtl &= 0xFFF0;          // clear pairwise key control filed
 222                 pTable->KeyTable[i].wKeyCtl |= byKeyDecMode;
 223                 uKeyIdx = 4;                                    // use HW key entry 4 for pairwise key
 224             } else {
 225                 // Group key
 226                 if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY)
 227                     return (false);
 228                 pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF]);
 229                 if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 230                     // Group transmit key
 231                     pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
 232                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
 233                                 "Group transmit key(R)[%X]: %d\n",
 234                                         pTable->KeyTable[i].dwGTKeyIndex, i);
 235                 }
 236                 pTable->KeyTable[i].wKeyCtl &= 0xFF0F;          // clear group key control filed
 237                 pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
 238                 pTable->KeyTable[i].wKeyCtl |= 0x0040;          // use group key for group address
 239                 uKeyIdx = (dwKeyIndex & 0x000000FF);
 240             }
 241             pTable->KeyTable[i].wKeyCtl |= 0x8000;              // enable on-fly
 242
 243             pKey->bKeyValid = true;
 244             pKey->uKeyLength = uKeyLength;
 245             pKey->dwKeyIndex = dwKeyIndex;
 246             pKey->byCipherSuite = byKeyDecMode;
 247             memcpy(pKey->abyKey, pbyKey, uKeyLength);
 248             if (byKeyDecMode == KEY_CTL_WEP) {
 249                 if (uKeyLength == WLAN_WEP40_KEYLEN)
 250                     pKey->abyKey[15] &= 0x7F;
 251                 if (uKeyLength == WLAN_WEP104_KEYLEN)
 252                     pKey->abyKey[15] |= 0x80;
 253             }
 254             MACvSetKeyEntry(pDevice, pTable->KeyTable[i].wKeyCtl, i, uKeyIdx, pbyBSSID, (u32 *)pKey->abyKey);
 255
 256                 if ((dwKeyIndex & USE_KEYRSC) == 0)
 257                         pKey->KeyRSC = 0; /* RSC set by NIC */
 258                 else
 259                         pKey->KeyRSC = *KeyRSC;
 260
 261             pKey->dwTSC47_16 = 0;
 262             pKey->wTSC15_0 = 0;
 263
 264             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 265             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 266             //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", pKey->uKeyLength);
 267             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 268             for (ii = 0; ii < pKey->uKeyLength; ii++) {
 269                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%02x ", pKey->abyKey[ii]);
 270             }
 271             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 272
 273                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %x\n ",
 274                         pKey->dwTSC47_16);
 275                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ",
 276                         pKey->wTSC15_0);
 277                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %x\n ",
 278                         pKey->dwKeyIndex);
 279
 280             return (true);
 281         }
 282     }
 283     if (j < (MAX_KEY_TABLE-1)) {
 284         memcpy(pTable->KeyTable[j].abyBSSID, pbyBSSID, ETH_ALEN);
 285         pTable->KeyTable[j].bInUse = true;
 286         if ((dwKeyIndex & PAIRWISE_KEY) != 0)  {
 287             // Pairwise key
 288             pKey = &(pTable->KeyTable[j].PairwiseKey);
 289             pTable->KeyTable[j].wKeyCtl &= 0xFFF0;          // clear pairwise key control filed
 290             pTable->KeyTable[j].wKeyCtl |= byKeyDecMode;
 291             uKeyIdx = 4;                                    // use HW key entry 4 for pairwise key
 292         } else {
 293             // Group key
 294             if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY)
 295                 return (false);
 296             pKey = &(pTable->KeyTable[j].GroupKey[dwKeyIndex & 0x000000FF]);
 297             if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 298                 // Group transmit key
 299                 pTable->KeyTable[j].dwGTKeyIndex = dwKeyIndex;
 300                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
 301                         "Group transmit key(N)[%X]: %d\n",
 302                                 pTable->KeyTable[j].dwGTKeyIndex, j);
 303             }
 304             pTable->KeyTable[j].wKeyCtl &= 0xFF0F;          // clear group key control filed
 305             pTable->KeyTable[j].wKeyCtl |= (byKeyDecMode << 4);
 306             pTable->KeyTable[j].wKeyCtl |= 0x0040;          // use group key for group address
 307             uKeyIdx = (dwKeyIndex & 0x000000FF);
 308         }
 309         pTable->KeyTable[j].wKeyCtl |= 0x8000;              // enable on-fly
 310
 311         pKey->bKeyValid = true;
 312         pKey->uKeyLength = uKeyLength;
 313         pKey->dwKeyIndex = dwKeyIndex;
 314         pKey->byCipherSuite = byKeyDecMode;
 315         memcpy(pKey->abyKey, pbyKey, uKeyLength);
 316         if (byKeyDecMode == KEY_CTL_WEP) {
 317             if (uKeyLength == WLAN_WEP40_KEYLEN)
 318                 pKey->abyKey[15] &= 0x7F;
 319             if (uKeyLength == WLAN_WEP104_KEYLEN)
 320                 pKey->abyKey[15] |= 0x80;
 321         }
 322         MACvSetKeyEntry(pDevice, pTable->KeyTable[j].wKeyCtl, j, uKeyIdx, pbyBSSID, (u32 *)pKey->abyKey);
 323
 324                 if ((dwKeyIndex & USE_KEYRSC) == 0)
 325                         pKey->KeyRSC = 0; /* RSC set by NIC */
 326                 else
 327                         pKey->KeyRSC = *KeyRSC;
 328
 329         pKey->dwTSC47_16 = 0;
 330         pKey->wTSC15_0 = 0;
 331
 332         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(N): \n");
 333         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 334         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", (int)pKey->uKeyLength);
 335         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 336         for (ii = 0; ii < pKey->uKeyLength; ii++) {
 337             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%02x ", pKey->abyKey[ii]);
 338         }
 339         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 340
 341         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %x\n ",
 342                 pKey->dwTSC47_16);
 343         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
 344         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %x\n ",
 345                 pKey->dwKeyIndex);
 346
 347         return (true);
 348     }
 349     return (false);
 350 }
 351
 352 /*
 353  * Description: Remove Key from table
 354  *
 355  * Parameters:
 356  *  In:
 357  *      pTable          - Pointer to Key table
 358  *      pbyBSSID        - BSSID of Key
 359  *      dwKeyIndex      - Key Index (reference to NDIS DDK)
 360  *  Out:
 361  *      none
 362  *
 363  * Return Value: true if success otherwise false
 364  *
 365  */
 366
 367 int KeybRemoveKey(struct vnt_private *pDevice, PSKeyManagement pTable,
 368         u8 *pbyBSSID, u32 dwKeyIndex)
 369 {
 370         int i;
 371         int bReturnValue = false;
 372
 373     if (is_broadcast_ether_addr(pbyBSSID)) {
 374         // delete all keys
 375         if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 376             for (i=0;i<MAX_KEY_TABLE;i++) {
 377                 pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
 378             }
 379             bReturnValue =  true;
 380         }
 381         else if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
 382             for (i=0;i<MAX_KEY_TABLE;i++) {
 383                 pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = false;
 384                 if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[i].dwGTKeyIndex & 0x7FFFFFFF)) {
 385                     // remove Group transmit key
 386                     pTable->KeyTable[i].dwGTKeyIndex = 0;
 387                 }
 388             }
 389             bReturnValue = true;
 390         }
 391         else {
 392             bReturnValue = false;
 393         }
 394
 395     } else {
 396         for (i=0;i<MAX_KEY_TABLE;i++) {
 397             if ( (pTable->KeyTable[i].bInUse == true) &&
 398                  ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 399
 400                 if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 401                     pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
 402                     bReturnValue = true;
 403                     break;
 404                 }
 405                 else if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
 406                     pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = false;
 407                     if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[i].dwGTKeyIndex & 0x7FFFFFFF)) {
 408                         // remove Group transmit key
 409                         pTable->KeyTable[i].dwGTKeyIndex = 0;
 410                     }
 411                     bReturnValue = true;
 412                     break;
 413                 }
 414                 else {
 415                     bReturnValue = false;
 416                     break;
 417                 }
 418             } //pTable->KeyTable[i].bInUse == true
 419         }  //for
 420         bReturnValue = true;
 421     }
 422
 423     s_vCheckKeyTableValid(pDevice,pTable);
 424     return bReturnValue;
 425
 426 }
 427
 428 /*
 429  * Description: Remove Key from table
 430  *
 431  * Parameters:
 432  *  In:
 433  *      pTable          - Pointer to Key table
 434  *      pbyBSSID        - BSSID of Key
 435  *  Out:
 436  *      none
 437  *
 438  * Return Value: true if success otherwise false
 439  *
 440  */
 441 int KeybRemoveAllKey(struct vnt_private *pDevice, PSKeyManagement pTable,
 442         u8 *pbyBSSID)
 443 {
 444         int i, u;
 445
 446     for (i=0;i<MAX_KEY_TABLE;i++) {
 447         if ((pTable->KeyTable[i].bInUse == true) &&
 448             ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 449             pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
 450             for (u = 0; u < MAX_GROUP_KEY; u++)
 451                 pTable->KeyTable[i].GroupKey[u].bKeyValid = false;
 452
 453             pTable->KeyTable[i].dwGTKeyIndex = 0;
 454             s_vCheckKeyTableValid(pDevice, pTable);
 455             return (true);
 456         }
 457     }
 458     return (false);
 459 }
 460
 461 /*
 462  * Description: Get Transmit Key from table
 463  *
 464  * Parameters:
 465  *  In:
 466  *      pTable          - Pointer to Key table
 467  *      pbyBSSID        - BSSID of Key
 468  *  Out:
 469  *      pKey            - Key return
 470  *
 471  * Return Value: true if found otherwise false
 472  *
 473  */
 474 int KeybGetTransmitKey(PSKeyManagement pTable, u8 *pbyBSSID, u32 dwKeyType,
 475         PSKeyItem *pKey)
 476 {
 477         int i, ii;
 478
 479         *pKey = NULL;
 480
 481     for (i = 0; i < MAX_KEY_TABLE; i++) {
 482         if ((pTable->KeyTable[i].bInUse == true) &&
 483             ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 484
 485             if (dwKeyType == PAIRWISE_KEY) {
 486
 487                 if (pTable->KeyTable[i].PairwiseKey.bKeyValid == true) {
 488                     *pKey = &(pTable->KeyTable[i].PairwiseKey);
 489
 490                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetTransmitKey:");
 491                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PAIRWISE_KEY: KeyTable.abyBSSID: ");
 492                     for (ii = 0; ii < 6; ii++) {
 493                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
 494                     }
 495                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 496
 497                     return (true);
 498                 }
 499                 else {
 500                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PairwiseKey.bKeyValid == false\n");
 501                     return (false);
 502                 }
 503             } // End of Type == PAIRWISE
 504             else {
 505                 if (pTable->KeyTable[i].dwGTKeyIndex == 0) {
 506                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ERROR: dwGTKeyIndex == 0 !!!\n");
 507                     return false;
 508                 }
 509                 if (pTable->KeyTable[i].GroupKey[(pTable->KeyTable[i].dwGTKeyIndex&0x000000FF)].bKeyValid == true) {
 510                     *pKey = &(pTable->KeyTable[i].GroupKey[(pTable->KeyTable[i].dwGTKeyIndex&0x000000FF)]);
 511
 512                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetTransmitKey:");
 513                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GROUP_KEY: KeyTable.abyBSSID\n");
 514                         for (ii = 0; ii < 6; ii++) {
 515                             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
 516                         }
 517                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 518                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwGTKeyIndex: %X\n",
 519                                 pTable->KeyTable[i].dwGTKeyIndex);
 520
 521                     return (true);
 522                 }
 523                 else {
 524                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GroupKey.bKeyValid == false\n");
 525                     return (false);
 526                 }
 527             } // End of Type = GROUP
 528         } // BSSID match
 529     }
 530     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ERROR: NO Match BSSID !!! ");
 531     for (ii = 0; ii < 6; ii++) {
 532         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%02x ", *(pbyBSSID+ii));
 533     }
 534     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 535     return (false);
 536 }
 537
 538 /*
 539  * Description: Set Key to table
 540  *
 541  * Parameters:
 542  *  In:
 543  *      pTable          - Pointer to Key table
 544  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 545  *      uKeyLength      - Key length
 546  *      KeyRSC          - Key RSC
 547  *      pbyKey          - Pointer to key
 548  *  Out:
 549  *      none
 550  *
 551  * Return Value: true if success otherwise false
 552  *
 553  */
 554
 555 int KeybSetDefaultKey(struct vnt_private *pDevice, PSKeyManagement pTable,
 556         u32 dwKeyIndex, u32 uKeyLength, u64 *KeyRSC, u8 *pbyKey,
 557         u8 byKeyDecMode)
 558 {
 559         int ii;
 560         PSKeyItem pKey;
 561         u32 uKeyIdx;
 562
 563     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Enter KeybSetDefaultKey: %1x, %d\n",
 564             (int) dwKeyIndex, (int) uKeyLength);
 565
 566     if ((dwKeyIndex & PAIRWISE_KEY) != 0) {                  // Pairwise key
 567         return (false);
 568     } else if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY) {
 569         return (false);
 570     }
 571
 572     if (uKeyLength > MAX_KEY_LEN)
 573             return false;
 574
 575     pTable->KeyTable[MAX_KEY_TABLE-1].bInUse = true;
 576     for (ii = 0; ii < ETH_ALEN; ii++)
 577         pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID[ii] = 0xFF;
 578
 579     // Group key
 580     pKey = &(pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF]);
 581     if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 582         // Group transmit key
 583         pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex = dwKeyIndex;
 584                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
 585                 "Group transmit key(R)[%X]: %d\n",
 586                 pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex,
 587                 MAX_KEY_TABLE-1);
 588
 589     }
 590     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl &= 0x7F00;          // clear all key control filed
 591     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= (byKeyDecMode << 4);
 592     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= (byKeyDecMode);
 593     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0x0044;          // use group key for all address
 594     uKeyIdx = (dwKeyIndex & 0x000000FF);
 595
 596     if ((uKeyLength == WLAN_WEP232_KEYLEN) &&
 597         (byKeyDecMode == KEY_CTL_WEP)) {
 598         pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0x4000;              // disable on-fly disable address match
 599         pTable->KeyTable[MAX_KEY_TABLE-1].bSoftWEP = true;
 600     } else {
 601         if (pTable->KeyTable[MAX_KEY_TABLE-1].bSoftWEP == false)
 602             pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0xC000;          // enable on-fly disable address match
 603     }
 604
 605     pKey->bKeyValid = true;
 606     pKey->uKeyLength = uKeyLength;
 607     pKey->dwKeyIndex = dwKeyIndex;
 608     pKey->byCipherSuite = byKeyDecMode;
 609     memcpy(pKey->abyKey, pbyKey, uKeyLength);
 610     if (byKeyDecMode == KEY_CTL_WEP) {
 611         if (uKeyLength == WLAN_WEP40_KEYLEN)
 612             pKey->abyKey[15] &= 0x7F;
 613         if (uKeyLength == WLAN_WEP104_KEYLEN)
 614             pKey->abyKey[15] |= 0x80;
 615     }
 616
 617     MACvSetKeyEntry(pDevice, pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl, MAX_KEY_TABLE-1, uKeyIdx, pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID, (u32 *) pKey->abyKey);
 618
 619                 if ((dwKeyIndex & USE_KEYRSC) == 0)
 620                         pKey->KeyRSC = 0; /* RSC set by NIC */
 621                 else
 622                         pKey->KeyRSC = *KeyRSC;
 623
 624     pKey->dwTSC47_16 = 0;
 625     pKey->wTSC15_0 = 0;
 626
 627     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 628     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n", pKey->bKeyValid);
 629     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n", (int)pKey->uKeyLength);
 630     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: \n");
 631     for (ii = 0; ii < pKey->uKeyLength; ii++) {
 632         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x", pKey->abyKey[ii]);
 633     }
 634     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 635
 636         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %x\n",
 637                 pKey->dwTSC47_16);
 638     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n", pKey->wTSC15_0);
 639         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %x\n",
 640                 pKey->dwKeyIndex);
 641
 642     return (true);
 643 }
 644
 645 /*
 646  * Description: Set Key to table
 647  *
 648  * Parameters:
 649  *  In:
 650  *      pTable          - Pointer to Key table
 651  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 652  *      uKeyLength      - Key length
 653  *      KeyRSC          - Key RSC
 654  *      pbyKey          - Pointer to key
 655  *  Out:
 656  *      none
 657  *
 658  * Return Value: true if success otherwise false
 659  *
 660  */
 661
 662 int KeybSetAllGroupKey(struct vnt_private *pDevice, PSKeyManagement pTable,
 663         u32 dwKeyIndex, u32 uKeyLength, u64 *KeyRSC, u8 *pbyKey,
 664         u8 byKeyDecMode)
 665 {
 666         int i, ii;
 667         PSKeyItem pKey;
 668         u32 uKeyIdx;
 669
 670         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetAllGroupKey: %X\n",
 671                 dwKeyIndex);
 672
 673     if ((dwKeyIndex & PAIRWISE_KEY) != 0) {                  // Pairwise key
 674         return (false);
 675     } else if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY) {
 676         return (false);
 677     }
 678
 679     for (i=0; i < MAX_KEY_TABLE-1; i++) {
 680         if (pTable->KeyTable[i].bInUse == true) {
 681             // found table already exist
 682             // Group key
 683             pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF]);
 684             if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 685                 // Group transmit key
 686                 pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
 687                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
 688                         "Group transmit key(R)[%X]: %d\n",
 689                         pTable->KeyTable[i].dwGTKeyIndex, i);
 690
 691             }
 692             pTable->KeyTable[i].wKeyCtl &= 0xFF0F;          // clear group key control filed
 693             pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
 694             pTable->KeyTable[i].wKeyCtl |= 0x0040;          // use group key for group address
 695             uKeyIdx = (dwKeyIndex & 0x000000FF);
 696
 697             pTable->KeyTable[i].wKeyCtl |= 0x8000;              // enable on-fly
 698
 699             pKey->bKeyValid = true;
 700             pKey->uKeyLength = uKeyLength;
 701             pKey->dwKeyIndex = dwKeyIndex;
 702             pKey->byCipherSuite = byKeyDecMode;
 703             memcpy(pKey->abyKey, pbyKey, uKeyLength);
 704             if (byKeyDecMode == KEY_CTL_WEP) {
 705                 if (uKeyLength == WLAN_WEP40_KEYLEN)
 706                     pKey->abyKey[15] &= 0x7F;
 707                 if (uKeyLength == WLAN_WEP104_KEYLEN)
 708                     pKey->abyKey[15] |= 0x80;
 709             }
 710
 711             MACvSetKeyEntry(pDevice, pTable->KeyTable[i].wKeyCtl, i, uKeyIdx, pTable->KeyTable[i].abyBSSID, (u32 *) pKey->abyKey);
 712
 713                 if ((dwKeyIndex & USE_KEYRSC) == 0)
 714                         pKey->KeyRSC = 0; /* RSC set by NIC */
 715                 else
 716                         pKey->KeyRSC = *KeyRSC;
 717
 718             pKey->dwTSC47_16 = 0;
 719             pKey->wTSC15_0 = 0;
 720
 721             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 722             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 723             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", (int)pKey->uKeyLength);
 724             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 725             for (ii = 0; ii < pKey->uKeyLength; ii++) {
 726                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%02x ", pKey->abyKey[ii]);
 727             }
 728             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 729
 730             //DBG_PRN_GRP12(("pKey->dwTSC47_16: %lX\n ", pKey->dwTSC47_16));
 731             //DBG_PRN_GRP12(("pKey->wTSC15_0: %X\n ", pKey->wTSC15_0));
 732             //DBG_PRN_GRP12(("pKey->dwKeyIndex: %lX\n ", pKey->dwKeyIndex));
 733
 734         } // (pTable->KeyTable[i].bInUse == true)
 735     }
 736     return (true);
 737 }