src/WINNT/afsd/cm_freelance.c

   1 #include <afs/param.h>
   2 #include <afs/stds.h>
   3
   4 #ifndef DJGPP
   5 #include <windows.h>
   6 #include <winreg.h>
   7 #include <winsock2.h>
   8 #else
   9 #include <netdb.h>
  10 #endif /* !DJGPP */
  11 #include <stdlib.h>
  12 #include <malloc.h>
  13 #include <string.h>
  14
  15 #include <rx/rx.h>
  16
  17 #include "afsd.h"
  18 #ifdef AFS_FREELANCE_CLIENT
  19 #include "cm_freelance.h"
  20 #include "stdio.h"
  21
  22 extern void afsi_log(char *pattern, ...);
  23
  24 int cm_noLocalMountPoints;
  25 int cm_fakeDirSize;
  26 int cm_fakeDirCallback=0;
  27 int cm_fakeGettingCallback=0;
  28 int cm_fakeDirVersion = 0x8;
  29 cm_localMountPoint_t* cm_localMountPoints;
  30 osi_mutex_t cm_Freelance_Lock;
  31 int cm_localMountPointChangeFlag = 0;
  32 int cm_freelanceEnabled = 0;
  33 time_t FakeFreelanceModTime = 0x3b49f6e2;
  34
  35 void cm_InitFakeRootDir();
  36
  37 #if !defined(DJGPP)
  38 void cm_FreelanceChangeNotifier(void * parmp) {
  39     HANDLE hFreelanceChangeEvent = 0;
  40     HKEY   hkFreelance = 0;
  41
  42     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
  43                       "SOFTWARE\\OpenAFS\\Client\\Freelance",
  44                       0,
  45                       KEY_NOTIFY,
  46                       &hkFreelance) == ERROR_SUCCESS) {
  47
  48         hFreelanceChangeEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
  49         if (hFreelanceChangeEvent == NULL) {
  50             RegCloseKey(hkFreelance);
  51             return;
  52         }
  53     }
  54
  55     while ( TRUE ) {
  56     /* check hFreelanceChangeEvent to see if it is set.
  57      * if so, call cm_noteLocalMountPointChange()
  58      */
  59         if (RegNotifyChangeKeyValue( hkFreelance,   /* hKey */
  60                                      FALSE,         /* bWatchSubtree */
  61                                      REG_NOTIFY_CHANGE_LAST_SET, /* dwNotifyFilter */
  62                                      hFreelanceChangeEvent, /* hEvent */
  63                                      TRUE          /* fAsynchronous */
  64                                      ) != ERROR_SUCCESS) {
  65             RegCloseKey(hkFreelance);
  66             CloseHandle(hFreelanceChangeEvent);
  67             return;
  68         }
  69
  70         if (WaitForSingleObject(hFreelanceChangeEvent, INFINITE) == WAIT_OBJECT_0)
  71         {
  72             cm_noteLocalMountPointChange();
  73         }
  74     }
  75 }
  76
  77 void cm_FreelanceSymlinkChangeNotifier(void * parmp) {
  78     HANDLE hFreelanceSymlinkChangeEvent = 0;
  79     HKEY   hkFreelance = 0;
  80
  81     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
  82                       "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
  83                       0,
  84                       KEY_NOTIFY,
  85                       &hkFreelance) == ERROR_SUCCESS) {
  86
  87         hFreelanceSymlinkChangeEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
  88         if (hFreelanceSymlinkChangeEvent == NULL) {
  89             RegCloseKey(hkFreelance);
  90             return;
  91         }
  92     }
  93
  94     while ( TRUE ) {
  95     /* check hFreelanceSymlinkChangeEvent to see if it is set.
  96      * if so, call cm_noteLocalMountPointSymlinkChange()
  97      */
  98         if (RegNotifyChangeKeyValue( hkFreelance,   /* hKey */
  99                                      FALSE,         /* bWatchSubtree */
 100                                      REG_NOTIFY_CHANGE_LAST_SET, /* dwNotifyFilter */
 101                                      hFreelanceSymlinkChangeEvent, /* hEvent */
 102                                      TRUE          /* fAsynchronous */
 103                                      ) != ERROR_SUCCESS) {
 104             RegCloseKey(hkFreelance);
 105             CloseHandle(hFreelanceSymlinkChangeEvent);
 106             return;
 107         }
 108
 109         if (WaitForSingleObject(hFreelanceSymlinkChangeEvent, INFINITE) == WAIT_OBJECT_0)
 110         {
 111             cm_noteLocalMountPointChange();
 112         }
 113     }
 114 }
 115 #endif
 116
 117 void cm_InitFreelance() {
 118 #if !defined(DJGPP)
 119     thread_t phandle;
 120     int lpid;
 121 #endif
 122
 123     lock_InitializeMutex(&cm_Freelance_Lock, "Freelance Lock");
 124
 125     // yj: first we make a call to cm_initLocalMountPoints
 126     // to read all the local mount points from an ini file
 127     cm_InitLocalMountPoints();
 128
 129     // then we make a call to InitFakeRootDir to create
 130     // a fake root directory based on the local mount points
 131     cm_InitFakeRootDir();
 132     // --- end of yj code
 133
 134 #if !defined(DJGPP)
 135     /* Start the registry monitor */
 136     phandle = thrd_Create(NULL, 65536, (ThreadFunc) cm_FreelanceChangeNotifier,
 137                           NULL, 0, &lpid, "cm_FreelanceChangeNotifier");
 138     osi_assert(phandle != NULL);
 139     thrd_CloseHandle(phandle);
 140
 141     phandle = thrd_Create(NULL, 65536, (ThreadFunc) cm_FreelanceSymlinkChangeNotifier,
 142                           NULL, 0, &lpid, "cm_FreelanceSymlinkChangeNotifier");
 143     osi_assert(phandle != NULL);
 144     thrd_CloseHandle(phandle);
 145 #endif
 146 }
 147
 148 /* yj: Initialization of the fake root directory */
 149 /* to be called while holding freelance lock unless during init. */
 150 void cm_InitFakeRootDir() {
 151     int i, t1, t2;
 152     char* currentPos;
 153     int noChunks;
 154
 155     // allocate space for the fake info
 156     cm_dirHeader_t fakeDirHeader;
 157     cm_dirEntry_t fakeEntry;
 158     cm_pageHeader_t fakePageHeader;
 159
 160     // i'm going to calculate how much space is needed for
 161     // this fake root directory. we have these rules:
 162     // 1. there are cm_noLocalMountPoints number of entries
 163     // 2. each page is CM_DIR_PAGESIZE in size
 164     // 3. the first 13 chunks of the first page are used for
 165     //    some header stuff
 166     // 4. the first chunk of all subsequent pages are used
 167     //    for page header stuff
 168     // 5. a max of CM_DIR_EPP entries are allowed per page
 169     // 6. each entry takes 1 or more chunks, depending on
 170     //    the size of the mount point string, as determined
 171     //    by cm_NameEntries
 172     // 7. each chunk is CM_DIR_CHUNKSIZE bytes
 173
 174     int CPP = CM_DIR_PAGESIZE / CM_DIR_CHUNKSIZE;
 175     int curChunk = 13;  // chunks 0 - 12 are used for header stuff
 176                         // of the first page in the directory
 177     int curPage = 0;
 178     int curDirEntry = 0;
 179     int curDirEntryInPage = 0;
 180     int sizeOfCurEntry;
 181     int dirSize;
 182
 183     /* Reserve 2 directory chunks for "." and ".." */
 184     curChunk += 2;
 185
 186     while (curDirEntry!=cm_noLocalMountPoints) {
 187         sizeOfCurEntry = cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0);
 188         if ((curChunk + sizeOfCurEntry >= CPP) ||
 189              (curDirEntryInPage + 1 >= CM_DIR_EPP)) {
 190             curPage++;
 191             curDirEntryInPage = 0;
 192             curChunk = 1;
 193         }
 194         curChunk += sizeOfCurEntry;
 195         curDirEntry++;
 196         curDirEntryInPage++;
 197     }
 198
 199     dirSize = (curPage+1) *  CM_DIR_PAGESIZE;
 200     cm_FakeRootDir = malloc(dirSize);
 201     cm_fakeDirSize = dirSize;
 202
 203     // yj: when we get here, we've figured out how much memory we need and
 204     // allocated the appropriate space for it. we now prceed to fill
 205     // it up with entries.
 206     curPage = 0;
 207     curDirEntry = 0;
 208     curDirEntryInPage = 0;
 209     curChunk = 0;
 210
 211     // fields in the directory entry that are unused.
 212     fakeEntry.flag = 1;
 213     fakeEntry.length = 0;
 214     fakeEntry.next = 0;
 215     fakeEntry.fid.unique = htonl(1);
 216
 217     // the first page is special, it uses fakeDirHeader instead of fakePageHeader
 218     // we fill up the page with dirEntries that belong there and we make changes
 219     // to the fakeDirHeader.header.freeBitmap along the way. Then when we're done
 220     // filling up the dirEntries in this page, we copy the fakeDirHeader into
 221     // the top of the page.
 222
 223     // init the freeBitmap array
 224     for (i=0; i<8; i++)
 225         fakeDirHeader.header.freeBitmap[i]=0;
 226
 227     fakeDirHeader.header.freeBitmap[0] = 0xff;
 228     fakeDirHeader.header.freeBitmap[1] = 0x7f;
 229
 230
 231     // we start counting at 13 because the 0th to 12th chunks are used for header
 232     curChunk = 13;
 233
 234     // stick the first 2 entries "." and ".." in
 235     fakeEntry.fid.unique = htonl(1);
 236     fakeEntry.fid.vnode = htonl(1);
 237     strcpy(fakeEntry.name, ".");
 238     currentPos = cm_FakeRootDir + curPage * CM_DIR_PAGESIZE + curChunk * CM_DIR_CHUNKSIZE;
 239     memcpy(currentPos, &fakeEntry, CM_DIR_CHUNKSIZE);
 240     curChunk++; curDirEntryInPage++;
 241     strcpy(fakeEntry.name, "..");
 242     currentPos = cm_FakeRootDir + curPage * CM_DIR_PAGESIZE + curChunk * CM_DIR_CHUNKSIZE;
 243     memcpy(currentPos, &fakeEntry, CM_DIR_CHUNKSIZE);
 244     curChunk++; curDirEntryInPage++;
 245
 246     // keep putting stuff into page 0 if
 247     // 1. we're not done with all entries
 248     // 2. we have less than CM_DIR_EPP entries in page 0
 249     // 3. we're not out of chunks in page 0
 250
 251     while( (curDirEntry!=cm_noLocalMountPoints) &&
 252            (curDirEntryInPage < CM_DIR_EPP) &&
 253            (curChunk + cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0) <= CPP))
 254     {
 255
 256         noChunks = cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0);
 257         fakeEntry.fid.vnode = htonl(curDirEntry + 2);
 258         currentPos = cm_FakeRootDir + curPage * CM_DIR_PAGESIZE + curChunk * CM_DIR_CHUNKSIZE;
 259
 260         memcpy(currentPos, &fakeEntry, CM_DIR_CHUNKSIZE);
 261         strcpy(currentPos + 12, (cm_localMountPoints+curDirEntry)->namep);
 262         curDirEntry++;
 263         curDirEntryInPage++;
 264         for (i=0; i<noChunks; i++) {
 265             t1 = (curChunk + i) / 8;
 266             t2 = curChunk + i - (t1*8);
 267             fakeDirHeader.header.freeBitmap[t1] |= (1 << t2);
 268         }
 269         curChunk+=noChunks;
 270     }
 271
 272     // when we get here, we're done with filling in the entries for page 0
 273     // copy in the header info
 274
 275     memcpy(cm_FakeRootDir, &fakeDirHeader, 13 * CM_DIR_CHUNKSIZE);
 276
 277     curPage++;
 278
 279     // ok, page 0's done. Move on to the next page.
 280     while (curDirEntry!=cm_noLocalMountPoints) {
 281         // setup a new page
 282         curChunk = 1;                   // the zeroth chunk is reserved for page header
 283         curDirEntryInPage = 0;
 284         for (i=0; i<8; i++) {
 285             fakePageHeader.freeBitmap[i]=0;
 286         }
 287         fakePageHeader.freeCount = 0;
 288         fakePageHeader.pgcount = 0;
 289         fakePageHeader.tag = htons(1234);
 290
 291         // while we're on the same page...
 292         while ( (curDirEntry!=cm_noLocalMountPoints) &&
 293                 (curDirEntryInPage < CM_DIR_EPP) &&
 294                 (curChunk + cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0) <= CPP))
 295         {
 296             // add an entry to this page
 297
 298             noChunks = cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0);
 299             fakeEntry.fid.vnode=htonl(curDirEntry+2);
 300             currentPos = cm_FakeRootDir + curPage * CM_DIR_PAGESIZE + curChunk * CM_DIR_CHUNKSIZE;
 301             memcpy(currentPos, &fakeEntry, CM_DIR_CHUNKSIZE);
 302             strcpy(currentPos + 12, (cm_localMountPoints+curDirEntry)->namep);
 303             curDirEntry++;
 304             curDirEntryInPage++;
 305             for (i=0; i<noChunks; i++) {
 306                 t1 = (curChunk + i) / 8;
 307                 t2 = curChunk + i - (t1*8);
 308                 fakePageHeader.freeBitmap[t1] |= (1 << t2);
 309             }
 310             curChunk+=noChunks;
 311         }
 312         memcpy(cm_FakeRootDir + curPage * CM_DIR_PAGESIZE, &fakePageHeader, sizeof(fakePageHeader));
 313
 314         curPage++;
 315     }
 316
 317     // we know the fakeDir is setup properly, so we claim that we have callback
 318     osi_Log0(afsd_logp,"cm_InitFakeRootDir fakeDirCallback=1");
 319     cm_fakeDirCallback=1;
 320
 321     // when we get here, we've set up everything! done!
 322 }
 323
 324 int cm_FakeRootFid(cm_fid_t *fidp)
 325 {
 326     fidp->cell = AFS_FAKE_ROOT_CELL_ID;            /* root cell */
 327     fidp->volume = AFS_FAKE_ROOT_VOL_ID;   /* root.afs ? */
 328     fidp->vnode = 0x1;
 329     fidp->unique = 0x1;
 330     return 0;
 331 }
 332
 333 /* called directly from ioctl */
 334 /* called while not holding freelance lock */
 335 int cm_noteLocalMountPointChange(void) {
 336     lock_ObtainMutex(&cm_Freelance_Lock);
 337     cm_fakeDirVersion++;
 338     cm_localMountPointChangeFlag = 1;
 339     lock_ReleaseMutex(&cm_Freelance_Lock);
 340     return 1;
 341 }
 342
 343 int cm_getLocalMountPointChange() {
 344     return cm_localMountPointChangeFlag;
 345 }
 346
 347 int cm_clearLocalMountPointChange() {
 348     cm_localMountPointChangeFlag = 0;
 349     return 0;
 350 }
 351
 352 int cm_reInitLocalMountPoints() {
 353     cm_fid_t aFid;
 354     int i, hash;
 355     cm_scache_t *scp, **lscpp, *tscp;
 356
 357     osi_Log0(afsd_logp,"----- freelance reinitialization starts ----- ");
 358
 359     // first we invalidate all the SCPs that were created
 360     // for the local mount points
 361
 362     osi_Log0(afsd_logp,"Invalidating local mount point scp...  ");
 363
 364     aFid.cell = AFS_FAKE_ROOT_CELL_ID;
 365     aFid.volume=AFS_FAKE_ROOT_VOL_ID;
 366     aFid.unique=0x1;
 367     aFid.vnode=0x2;
 368
 369     lock_ObtainWrite(&cm_scacheLock);
 370     lock_ObtainMutex(&cm_Freelance_Lock);  /* always scache then freelance lock */
 371     for (i=0; i<cm_noLocalMountPoints; i++) {
 372         hash = CM_SCACHE_HASH(&aFid);
 373         for (scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
 374             if (scp->fid.volume == aFid.volume &&
 375                  scp->fid.vnode == aFid.vnode &&
 376                  scp->fid.unique == aFid.unique
 377                  ) {
 378
 379                 // mark the scp to be reused
 380                 cm_HoldSCacheNoLock(scp);
 381                 lock_ReleaseWrite(&cm_scacheLock);
 382                 lock_ObtainMutex(&scp->mx);
 383                 cm_DiscardSCache(scp);
 384                 lock_ReleaseMutex(&scp->mx);
 385                 cm_CallbackNotifyChange(scp);
 386                 lock_ObtainWrite(&cm_scacheLock);
 387                 cm_ReleaseSCacheNoLock(scp);
 388
 389                 // take the scp out of the hash
 390                 lscpp = &cm_hashTablep[hash];
 391                 for (tscp=*lscpp; tscp; lscpp = &tscp->nextp, tscp = *lscpp) {
 392                     if (tscp == scp) break;
 393                 }
 394                 *lscpp = scp->nextp;
 395                 scp->flags &= ~CM_SCACHEFLAG_INHASH;
 396             }
 397         }
 398         aFid.vnode = aFid.vnode + 1;
 399     }
 400     lock_ReleaseWrite(&cm_scacheLock);
 401     osi_Log0(afsd_logp,"\tall old scp cleared!");
 402
 403     // we must free the memory that was allocated in the prev
 404     // cm_InitLocalMountPoints call
 405     osi_Log0(afsd_logp,"Removing old localmountpoints...  ");
 406     free(cm_localMountPoints);
 407     osi_Log0(afsd_logp,"\tall old localmountpoints cleared!");
 408
 409     // now re-init the localmountpoints
 410     osi_Log0(afsd_logp,"Creating new localmountpoints...  ");
 411     cm_InitLocalMountPoints();
 412     osi_Log0(afsd_logp,"\tcreated new set of localmountpoints!");
 413
 414     // now we have to free the memory allocated in cm_initfakerootdir
 415     osi_Log0(afsd_logp,"Removing old fakedir...  ");
 416     free(cm_FakeRootDir);
 417     osi_Log0(afsd_logp,"\t\told fakedir removed!");
 418
 419     // then we re-create that dir
 420     osi_Log0(afsd_logp,"Creating new fakedir...  ");
 421     cm_InitFakeRootDir();
 422     osi_Log0(afsd_logp,"\t\tcreated new fakedir!");
 423
 424     lock_ReleaseMutex(&cm_Freelance_Lock);
 425
 426     osi_Log0(afsd_logp,"----- freelance reinit complete -----");
 427     return 0;
 428 }
 429
 430
 431 // yj: open up the ini file and read all the local mount
 432 // points that are stored there. Part of the initialization
 433 // process for the freelance client.
 434 /* to be called while holding freelance lock unless during init. */
 435 long cm_InitLocalMountPoints() {
 436     FILE *fp;
 437     int i;
 438     char line[512];
 439     char*t, *t2;
 440     cm_localMountPoint_t* aLocalMountPoint;
 441     char hdir[120];
 442     long code;
 443     char rootCellName[256];
 444 #if !defined(DJGPP)
 445     HKEY hkFreelance = 0, hkFreelanceSymlinks = 0;
 446     DWORD dwType, dwSize;
 447     DWORD dwMountPoints = 0;
 448     DWORD dwIndex;
 449     DWORD dwSymlinks = 0;
 450     FILETIME ftLastWriteTime;
 451 #endif
 452
 453 #if !defined(DJGPP)
 454     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 455                       "SOFTWARE\\OpenAFS\\Client\\Freelance",
 456                       0,
 457                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
 458                       &hkFreelance) == ERROR_SUCCESS) {
 459
 460         RegQueryInfoKey( hkFreelance,
 461                          NULL,  /* lpClass */
 462                          NULL,  /* lpcClass */
 463                          NULL,  /* lpReserved */
 464                          NULL,  /* lpcSubKeys */
 465                          NULL,  /* lpcMaxSubKeyLen */
 466                          NULL,  /* lpcMaxClassLen */
 467                          &dwMountPoints, /* lpcValues */
 468                          NULL,  /* lpcMaxValueNameLen */
 469                          NULL,  /* lpcMaxValueLen */
 470                          NULL,  /* lpcbSecurityDescriptor */
 471                          &ftLastWriteTime /* lpftLastWriteTime */
 472                          );
 473
 474         smb_UnixTimeFromLargeSearchTime(&FakeFreelanceModTime, &ftLastWriteTime);
 475
 476         if ( dwMountPoints == 0 ) {
 477             rootCellName[0] = '.';
 478             code = cm_GetRootCellName(&rootCellName[1]);
 479             if (code == 0) {
 480                 cm_FreelanceAddMount(&rootCellName[1], &rootCellName[1], "root.cell", 0, NULL);
 481                 cm_FreelanceAddMount(rootCellName, &rootCellName[1], "root.cell", 1, NULL);
 482                 dwMountPoints = 2;
 483             }
 484         }
 485
 486         if (RegCreateKeyEx( HKEY_LOCAL_MACHINE,
 487                           "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
 488                           0,
 489                           NULL,
 490                           REG_OPTION_NON_VOLATILE,
 491                           KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
 492                           NULL,
 493                           &hkFreelanceSymlinks,
 494                           NULL) == ERROR_SUCCESS) {
 495
 496             RegQueryInfoKey( hkFreelanceSymlinks,
 497                              NULL,  /* lpClass */
 498                              NULL,  /* lpcClass */
 499                              NULL,  /* lpReserved */
 500                              NULL,  /* lpcSubKeys */
 501                              NULL,  /* lpcMaxSubKeyLen */
 502                              NULL,  /* lpcMaxClassLen */
 503                              &dwSymlinks, /* lpcValues */
 504                              NULL,  /* lpcMaxValueNameLen */
 505                              NULL,  /* lpcMaxValueLen */
 506                              NULL,  /* lpcbSecurityDescriptor */
 507                              NULL   /* lpftLastWriteTime */
 508                              );
 509         }
 510
 511         // get the number of entries there are from the first line
 512         // that we read
 513         cm_noLocalMountPoints = dwMountPoints + dwSymlinks;
 514
 515         // create space to store the local mount points
 516         cm_localMountPoints = malloc(sizeof(cm_localMountPoint_t) * cm_noLocalMountPoints);
 517         aLocalMountPoint = cm_localMountPoints;
 518
 519         // now we read n lines and parse them into local mount points
 520         // where n is the number of local mount points there are, as
 521         // determined above.
 522         // Each line in the ini file represents 1 local mount point and
 523         // is in the format xxx#yyy:zzz, where xxx is the directory
 524         // entry name, yyy is the cell name and zzz is the volume name.
 525         // #yyy:zzz together make up the mount point.
 526         for ( dwIndex = 0 ; dwIndex < dwMountPoints; dwIndex++ ) {
 527             TCHAR szValueName[16];
 528             DWORD dwValueSize = 16;
 529             dwSize = sizeof(line);
 530             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 531                           &dwType, line, &dwSize);
 532
 533             /* find the trailing dot; null terminate after it */
 534             t2 = strrchr(line, '.');
 535             if (t2)
 536                 *(t2+1) = '\0';
 537
 538             // line is not empty, so let's parse it
 539             t = strchr(line, '#');
 540             if (!t)
 541                 t = strchr(line, '%');
 542             // make sure that there is a '#' or '%' separator in the line
 543             if (!t) {
 544                 afsi_log("error occurred while parsing entry in %s: no # or %% separator in line %d", AFS_FREELANCE_INI, dwIndex);
 545                 fprintf(stderr, "error occurred while parsing entry in afs_freelance.ini: no # or %% separator in line %d", dwIndex);
 546                 cm_noLocalMountPoints--;
 547                 continue;
 548             }
 549
 550             aLocalMountPoint->fileType = CM_SCACHETYPE_MOUNTPOINT;
 551             aLocalMountPoint->namep=malloc(t-line+1);
 552             strncpy(aLocalMountPoint->namep, line, t-line);
 553             aLocalMountPoint->namep[t-line] = '\0';
 554
 555             /* copy the mount point string */
 556             aLocalMountPoint->mountPointStringp=malloc(strlen(t));
 557             strncpy(aLocalMountPoint->mountPointStringp, t, strlen(t)-1);
 558             aLocalMountPoint->mountPointStringp[strlen(t)-1] = '\0';
 559
 560             osi_Log2(afsd_logp,"found mount point: name %s, string %s",
 561                       osi_LogSaveString(afsd_logp,aLocalMountPoint->namep),
 562                       osi_LogSaveString(afsd_logp,aLocalMountPoint->mountPointStringp));
 563
 564             aLocalMountPoint++;
 565         }
 566
 567         for ( dwIndex = 0 ; dwIndex < dwSymlinks; dwIndex++ ) {
 568             TCHAR szValueName[16];
 569             DWORD dwValueSize = 16;
 570             dwSize = sizeof(line);
 571             RegEnumValue( hkFreelanceSymlinks, dwIndex, szValueName, &dwValueSize, NULL,
 572                           &dwType, line, &dwSize);
 573
 574             /* find the trailing dot; null terminate after it */
 575             t2 = strrchr(line, '.');
 576             if (t2)
 577                 *(t2+1) = '\0';
 578
 579             // line is not empty, so let's parse it
 580             t = strchr(line, ':');
 581
 582             // make sure that there is a ':' separator in the line
 583             if (!t) {
 584                 afsi_log("error occurred while parsing symlink entry: no ':' separator in line %d", dwIndex);
 585                 fprintf(stderr, "error occurred while parsing symlink entry: no ':' separator in line %d", dwIndex);
 586                 cm_noLocalMountPoints--;
 587                 continue;
 588             }
 589
 590             aLocalMountPoint->fileType = CM_SCACHETYPE_SYMLINK;
 591             aLocalMountPoint->namep=malloc(t-line+1);
 592             strncpy(aLocalMountPoint->namep, line, t-line);
 593             aLocalMountPoint->namep[t-line] = '\0';
 594
 595             /* copy the symlink string */
 596             aLocalMountPoint->mountPointStringp=malloc(strlen(t)-1);
 597             strncpy(aLocalMountPoint->mountPointStringp, t+1, strlen(t)-2);
 598             aLocalMountPoint->mountPointStringp[strlen(t)-2] = '\0';
 599
 600             osi_Log2(afsd_logp,"found symlink: name %s, string %s",
 601                       osi_LogSaveString(afsd_logp,aLocalMountPoint->namep),
 602                       osi_LogSaveString(afsd_logp,aLocalMountPoint->mountPointStringp));
 603
 604             aLocalMountPoint++;
 605         }
 606
 607         if ( hkFreelanceSymlinks )
 608             RegCloseKey( hkFreelanceSymlinks );
 609         RegCloseKey(hkFreelance);
 610         return 0;
 611     }
 612 #endif
 613
 614     /* What follows is the old code to read freelance mount points
 615      * out of a text file modified to copy the data into the registry
 616      */
 617     cm_GetConfigDir(hdir);
 618     strcat(hdir, AFS_FREELANCE_INI);
 619     // open the ini file for reading
 620     fp = fopen(hdir, "r");
 621     if (!fp) {
 622         /* look in the Windows directory where we used to store the file */
 623         GetWindowsDirectory(hdir, sizeof(hdir));
 624         strcat(hdir,"\\");
 625         strcat(hdir, AFS_FREELANCE_INI);
 626         fp = fopen(hdir, "r");
 627     }
 628
 629 #if !defined(DJGPP)
 630     RegCreateKeyEx( HKEY_LOCAL_MACHINE,
 631                     "SOFTWARE\\OpenAFS\\Client\\Freelance",
 632                     0,
 633                     NULL,
 634                     REG_OPTION_NON_VOLATILE,
 635                     KEY_READ|KEY_WRITE,
 636                     NULL,
 637                     &hkFreelance,
 638                     NULL);
 639     dwIndex = 0;
 640 #endif
 641
 642     if (!fp) {
 643 #if !defined(DJGPP)
 644         RegCloseKey(hkFreelance);
 645 #endif
 646         rootCellName[0] = '.';
 647         code = cm_GetRootCellName(&rootCellName[1]);
 648         if (code == 0) {
 649             cm_FreelanceAddMount(&rootCellName[1], &rootCellName[1], "root.cell", 0, NULL);
 650             cm_FreelanceAddMount(rootCellName, &rootCellName[1], "root.cell", 1, NULL);
 651         }
 652         return 0;
 653     }
 654
 655     // we successfully opened the file
 656     osi_Log0(afsd_logp,"opened afs_freelance.ini");
 657
 658     // now we read the first line to see how many entries
 659     // there are
 660     fgets(line, sizeof(line), fp);
 661
 662     // if the line is empty at any point when we're reading
 663     // we're screwed. report error and return.
 664     if (*line==0) {
 665         afsi_log("error occurred while reading afs_freelance.ini");
 666         fprintf(stderr, "error occurred while reading afs_freelance.ini");
 667         return -1;
 668     }
 669
 670     // get the number of entries there are from the first line
 671     // that we read
 672     cm_noLocalMountPoints = atoi(line);
 673
 674     if (cm_noLocalMountPoints > 0) {
 675         // create space to store the local mount points
 676         cm_localMountPoints = malloc(sizeof(cm_localMountPoint_t) * cm_noLocalMountPoints);
 677         aLocalMountPoint = cm_localMountPoints;
 678     }
 679
 680     // now we read n lines and parse them into local mount points
 681     // where n is the number of local mount points there are, as
 682     // determined above.
 683     // Each line in the ini file represents 1 local mount point and
 684     // is in the format xxx#yyy:zzz, where xxx is the directory
 685     // entry name, yyy is the cell name and zzz is the volume name.
 686     // #yyy:zzz together make up the mount point.
 687     for (i=0; i<cm_noLocalMountPoints; i++) {
 688         fgets(line, sizeof(line), fp);
 689         // check that the line is not empty
 690         if (line[0]==0) {
 691             afsi_log("error occurred while parsing entry in %s: empty line in line %d", AFS_FREELANCE_INI, i);
 692             fprintf(stderr, "error occurred while parsing entry in afs_freelance.ini: empty line in line %d", i);
 693             return -1;
 694         }
 695
 696         /* find the trailing dot; null terminate after it */
 697         t2 = strrchr(line, '.');
 698         if (t2)
 699             *(t2+1) = '\0';
 700
 701 #if !defined(DJGPP)
 702         if ( hkFreelance ) {
 703             char szIndex[16];
 704             /* we are migrating to the registry */
 705             sprintf(szIndex,"%d",dwIndex++);
 706             dwType = REG_SZ;
 707             dwSize = strlen(line) + 1;
 708             RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
 709         }
 710 #endif
 711
 712         // line is not empty, so let's parse it
 713         t = strchr(line, '#');
 714         if (!t)
 715             t = strchr(line, '%');
 716         // make sure that there is a '#' or '%' separator in the line
 717         if (!t) {
 718             afsi_log("error occurred while parsing entry in %s: no # or %% separator in line %d", AFS_FREELANCE_INI, i);
 719             fprintf(stderr, "error occurred while parsing entry in afs_freelance.ini: no # or %% separator in line %d", i);
 720             return -1;
 721         }
 722         aLocalMountPoint->namep=malloc(t-line+1);
 723         memcpy(aLocalMountPoint->namep, line, t-line);
 724         *(aLocalMountPoint->namep + (t-line)) = 0;
 725
 726         aLocalMountPoint->mountPointStringp=malloc(strlen(line) - (t-line) + 1);
 727         memcpy(aLocalMountPoint->mountPointStringp, t, strlen(line)-(t-line)-1);
 728         *(aLocalMountPoint->mountPointStringp + (strlen(line)-(t-line)-1)) = 0;
 729
 730         osi_Log2(afsd_logp,"found mount point: name %s, string %s",
 731                   aLocalMountPoint->namep,
 732                   aLocalMountPoint->mountPointStringp);
 733
 734         aLocalMountPoint++;
 735     }
 736     fclose(fp);
 737 #if !defined(DJGPP)
 738     if ( hkFreelance ) {
 739         RegCloseKey(hkFreelance);
 740         DeleteFile(hdir);
 741     }
 742 #endif
 743     return 0;
 744 }
 745
 746 int cm_getNoLocalMountPoints() {
 747     return cm_noLocalMountPoints;
 748 }
 749
 750 #if !defined(DJGPP)
 751 long cm_FreelanceMountPointExists(char * filename)
 752 {
 753     char* cp;
 754     char line[512];
 755     char shortname[200];
 756     int found = 0;
 757     HKEY hkFreelance = 0;
 758     DWORD dwType, dwSize;
 759     DWORD dwMountPoints;
 760     DWORD dwIndex;
 761
 762     lock_ObtainMutex(&cm_Freelance_Lock);
 763
 764     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 765                       "SOFTWARE\\OpenAFS\\Client\\Freelance",
 766                       0,
 767                       KEY_READ|KEY_QUERY_VALUE,
 768                       &hkFreelance) == ERROR_SUCCESS)
 769     {
 770         RegQueryInfoKey( hkFreelance,
 771                          NULL,  /* lpClass */
 772                          NULL,  /* lpcClass */
 773                          NULL,  /* lpReserved */
 774                          NULL,  /* lpcSubKeys */
 775                          NULL,  /* lpcMaxSubKeyLen */
 776                          NULL,  /* lpcMaxClassLen */
 777                          &dwMountPoints, /* lpcValues */
 778                          NULL,  /* lpcMaxValueNameLen */
 779                          NULL,  /* lpcMaxValueLen */
 780                          NULL,  /* lpcbSecurityDescriptor */
 781                          NULL   /* lpftLastWriteTime */
 782                          );
 783
 784         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
 785             TCHAR szValueName[16];
 786             DWORD dwValueSize = 16;
 787             dwSize = sizeof(line);
 788             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 789                           &dwType, line, &dwSize);
 790
 791             cp=strchr(line, '#');
 792             if (!cp)
 793                 cp=strchr(line, '%');
 794             memcpy(shortname, line, cp-line);
 795             shortname[cp-line]=0;
 796
 797             if (!strcmp(shortname, filename)) {
 798                 found = 1;
 799                 break;
 800             }
 801         }
 802         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
 803             TCHAR szValueName[16];
 804             DWORD dwValueSize = 16;
 805             dwSize = sizeof(line);
 806             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 807                           &dwType, line, &dwSize);
 808
 809             cp=strchr(line, '#');
 810             if (!cp)
 811                 cp=strchr(line, '%');
 812             memcpy(shortname, line, cp-line);
 813             shortname[cp-line]=0;
 814
 815             if (!stricmp(shortname, filename)) {
 816                 found = 1;
 817                 break;
 818             }
 819         }
 820         RegCloseKey(hkFreelance);
 821     }
 822
 823     lock_ReleaseMutex(&cm_Freelance_Lock);
 824
 825     return found;
 826 }
 827
 828 long cm_FreelanceSymlinkExists(char * filename)
 829 {
 830     char* cp;
 831     char line[512];
 832     char shortname[200];
 833     int found = 0;
 834     HKEY hkFreelance = 0;
 835     DWORD dwType, dwSize;
 836     DWORD dwSymlinks;
 837     DWORD dwIndex;
 838
 839     lock_ObtainMutex(&cm_Freelance_Lock);
 840
 841     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 842                       "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
 843                       0,
 844                       KEY_READ|KEY_QUERY_VALUE,
 845                       &hkFreelance) == ERROR_SUCCESS)
 846     {
 847         RegQueryInfoKey( hkFreelance,
 848                          NULL,  /* lpClass */
 849                          NULL,  /* lpcClass */
 850                          NULL,  /* lpReserved */
 851                          NULL,  /* lpcSubKeys */
 852                          NULL,  /* lpcMaxSubKeyLen */
 853                          NULL,  /* lpcMaxClassLen */
 854                          &dwSymlinks, /* lpcValues */
 855                          NULL,  /* lpcMaxValueNameLen */
 856                          NULL,  /* lpcMaxValueLen */
 857                          NULL,  /* lpcbSecurityDescriptor */
 858                          NULL   /* lpftLastWriteTime */
 859                          );
 860
 861         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
 862             TCHAR szValueName[16];
 863             DWORD dwValueSize = 16;
 864             dwSize = sizeof(line);
 865             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 866                           &dwType, line, &dwSize);
 867
 868             cp=strchr(line, ':');
 869             memcpy(shortname, line, cp-line);
 870             shortname[cp-line]=0;
 871
 872             if (!strcmp(shortname, filename)) {
 873                 found = 1;
 874                 break;
 875             }
 876         }
 877         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
 878             TCHAR szValueName[16];
 879             DWORD dwValueSize = 16;
 880             dwSize = sizeof(line);
 881             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 882                           &dwType, line, &dwSize);
 883
 884             cp=strchr(line, ':');
 885             memcpy(shortname, line, cp-line);
 886             shortname[cp-line]=0;
 887
 888             if (!stricmp(shortname, filename)) {
 889                 found = 1;
 890                 break;
 891             }
 892         }
 893         RegCloseKey(hkFreelance);
 894     }
 895
 896     lock_ReleaseMutex(&cm_Freelance_Lock);
 897
 898     return found;
 899 }
 900 #endif
 901
 902 long cm_FreelanceAddMount(char *filename, char *cellname, char *volume, int rw, cm_fid_t *fidp)
 903 {
 904     FILE *fp;
 905     char hfile[120];
 906     char line[512];
 907     char fullname[200];
 908     int n;
 909     int alias = 0;
 910 #if !defined(DJGPP)
 911     HKEY hkFreelance = 0;
 912     DWORD dwType, dwSize;
 913     DWORD dwMountPoints;
 914     DWORD dwIndex;
 915 #endif
 916
 917     /* before adding, verify the cell name; if it is not a valid cell,
 918        don't add the mount point.
 919        allow partial matches as a means of poor man's alias. */
 920     /* major performance issue? */
 921     osi_Log4(afsd_logp,"Freelance Add Mount request: filename=%s cellname=%s volume=%s %s",
 922               osi_LogSaveString(afsd_logp,filename),
 923               osi_LogSaveString(afsd_logp,cellname),
 924               osi_LogSaveString(afsd_logp,volume),
 925               rw ? "rw" : "ro");
 926
 927     if ( filename[0] == '\0' || cellname[0] == '\0' || volume[0] == '\0' )
 928         return -1;
 929
 930     if (cellname[0] == '.') {
 931         if (!cm_GetCell_Gen(&cellname[1], fullname, CM_FLAG_CREATE))
 932             return -1;
 933     } else {
 934         if (!cm_GetCell_Gen(cellname, fullname, CM_FLAG_CREATE))
 935             return -1;
 936     }
 937
 938 #if !defined(DJGPP)
 939     if ( cm_FreelanceMountPointExists(filename) ||
 940          cm_FreelanceSymlinkExists(filename) )
 941         return -1;
 942 #endif
 943
 944     osi_Log1(afsd_logp,"Freelance Adding Mount for Cell: %s",
 945               osi_LogSaveString(afsd_logp,cellname));
 946
 947     lock_ObtainMutex(&cm_Freelance_Lock);
 948
 949 #if !defined(DJGPP)
 950     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 951                       "SOFTWARE\\OpenAFS\\Client\\Freelance",
 952                       0,
 953                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
 954                       &hkFreelance) == ERROR_SUCCESS) {
 955
 956         RegQueryInfoKey( hkFreelance,
 957                          NULL,  /* lpClass */
 958                          NULL,  /* lpcClass */
 959                          NULL,  /* lpReserved */
 960                          NULL,  /* lpcSubKeys */
 961                          NULL,  /* lpcMaxSubKeyLen */
 962                          NULL,  /* lpcMaxClassLen */
 963                          &dwMountPoints, /* lpcValues */
 964                          NULL,  /* lpcMaxValueNameLen */
 965                          NULL,  /* lpcMaxValueLen */
 966                          NULL,  /* lpcbSecurityDescriptor */
 967                          NULL   /* lpftLastWriteTime */
 968                          );
 969
 970         if (rw)
 971             sprintf(line, "%s%%%s:%s", filename, fullname, volume);
 972         else
 973             sprintf(line, "%s#%s:%s", filename, fullname, volume);
 974
 975         /* If we are adding a new value, there must be an unused name
 976          * within the range 0 to dwMountPoints
 977          */
 978         for ( dwIndex = 0; dwIndex <= dwMountPoints; dwIndex++ ) {
 979             char szIndex[16];
 980             char szMount[1024];
 981
 982             dwSize = sizeof(szMount);
 983             sprintf(szIndex, "%d", dwIndex);
 984             if (RegQueryValueEx( hkFreelance, szIndex, 0, &dwType, szMount, &dwSize) != ERROR_SUCCESS) {
 985                 /* found an unused value */
 986                 dwType = REG_SZ;
 987                 dwSize = strlen(line) + 1;
 988                 RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
 989                 break;
 990             } else {
 991                 int len = strlen(filename);
 992                 if ( dwType == REG_SZ && !strncmp(filename, szMount, len) &&
 993                      (szMount[len] == '%' || szMount[len] == '#')) {
 994                     /* Replace the existing value */
 995                     dwType = REG_SZ;
 996                     dwSize = strlen(line) + 1;
 997                     RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
 998                     break;
 999                 }
1000             }
1001         }
1002         RegCloseKey(hkFreelance);
1003     } else
1004 #endif
1005     {
1006         cm_GetConfigDir(hfile);
1007         strcat(hfile, AFS_FREELANCE_INI);
1008         fp = fopen(hfile, "r+");
1009         if (!fp)
1010             return CM_ERROR_INVAL;
1011         fgets(line, sizeof(line), fp);
1012         n = atoi(line);
1013         n++;
1014         fseek(fp, 0, SEEK_SET);
1015         fprintf(fp, "%d", n);
1016         fseek(fp, 0, SEEK_END);
1017         if (rw)
1018             fprintf(fp, "%s%%%s:%s\n", filename, fullname, volume);
1019         else
1020             fprintf(fp, "%s#%s:%s\n", filename, fullname, volume);
1021         fclose(fp);
1022     }
1023     lock_ReleaseMutex(&cm_Freelance_Lock);
1024
1025     /* cm_reInitLocalMountPoints(); */
1026     if (fidp) {
1027         fidp->unique = 1;
1028         fidp->vnode = cm_noLocalMountPoints + 1;   /* vnode value of last mt pt */
1029     }
1030     cm_noteLocalMountPointChange();
1031     return 0;
1032 }
1033
1034 long cm_FreelanceRemoveMount(char *toremove)
1035 {
1036     int i, n;
1037     char* cp;
1038     char line[512];
1039     char shortname[200];
1040     char hfile[120], hfile2[120];
1041     FILE *fp1, *fp2;
1042     int found=0;
1043 #if !defined(DJGPP)
1044     HKEY hkFreelance = 0;
1045     DWORD dwType, dwSize;
1046     DWORD dwMountPoints;
1047     DWORD dwIndex;
1048 #endif
1049
1050     lock_ObtainMutex(&cm_Freelance_Lock);
1051
1052 #if !defined(DJGPP)
1053     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
1054                       "SOFTWARE\\OpenAFS\\Client\\Freelance",
1055                       0,
1056                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1057                       &hkFreelance) == ERROR_SUCCESS) {
1058
1059         RegQueryInfoKey( hkFreelance,
1060                          NULL,  /* lpClass */
1061                          NULL,  /* lpcClass */
1062                          NULL,  /* lpReserved */
1063                          NULL,  /* lpcSubKeys */
1064                          NULL,  /* lpcMaxSubKeyLen */
1065                          NULL,  /* lpcMaxClassLen */
1066                          &dwMountPoints, /* lpcValues */
1067                          NULL,  /* lpcMaxValueNameLen */
1068                          NULL,  /* lpcMaxValueLen */
1069                          NULL,  /* lpcbSecurityDescriptor */
1070                          NULL   /* lpftLastWriteTime */
1071                          );
1072
1073         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
1074             TCHAR szValueName[16];
1075             DWORD dwValueSize = 16;
1076             dwSize = sizeof(line);
1077             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
1078                           &dwType, line, &dwSize);
1079
1080             cp=strchr(line, '#');
1081             if (!cp)
1082                 cp=strchr(line, '%');
1083             memcpy(shortname, line, cp-line);
1084             shortname[cp-line]=0;
1085
1086             if (!strcmp(shortname, toremove)) {
1087                 RegDeleteValue( hkFreelance, szValueName );
1088                 break;
1089             }
1090         }
1091         RegCloseKey(hkFreelance);
1092     } else
1093 #endif
1094     {
1095         cm_GetConfigDir(hfile);
1096         strcat(hfile, AFS_FREELANCE_INI);
1097         strcpy(hfile2, hfile);
1098         strcat(hfile2, "2");
1099         fp1=fopen(hfile, "r+");
1100         if (!fp1)
1101             return CM_ERROR_INVAL;
1102         fp2=fopen(hfile2, "w+");
1103         if (!fp2) {
1104             fclose(fp1);
1105             return CM_ERROR_INVAL;
1106         }
1107
1108         fgets(line, sizeof(line), fp1);
1109         n=atoi(line);
1110         fprintf(fp2, "%d\n", n-1);
1111
1112         for (i=0; i<n; i++) {
1113             fgets(line, sizeof(line), fp1);
1114             cp=strchr(line, '#');
1115             if (!cp)
1116                 cp=strchr(line, '%');
1117             memcpy(shortname, line, cp-line);
1118             shortname[cp-line]=0;
1119
1120             if (strcmp(shortname, toremove)==0) {
1121
1122             } else {
1123                 found = 1;
1124                 fputs(line, fp2);
1125             }
1126         }
1127
1128         fclose(fp1);
1129         fclose(fp2);
1130         if (!found)
1131             return CM_ERROR_NOSUCHFILE;
1132
1133         unlink(hfile);
1134         rename(hfile2, hfile);
1135     }
1136
1137     lock_ReleaseMutex(&cm_Freelance_Lock);
1138     cm_noteLocalMountPointChange();
1139     return 0;
1140 }
1141
1142 long cm_FreelanceAddSymlink(char *filename, char *destination, cm_fid_t *fidp)
1143 {
1144     char line[512];
1145     char fullname[200];
1146     int alias = 0;
1147 #if !defined(DJGPP)
1148     HKEY hkFreelanceSymlinks = 0;
1149     DWORD dwType, dwSize;
1150     DWORD dwSymlinks;
1151     DWORD dwIndex;
1152 #endif
1153
1154     /* before adding, verify the filename.  If it is already in use, either as
1155      * as mount point or a cellname, do not permit the creation of the symlink.
1156      */
1157     osi_Log2(afsd_logp,"Freelance Add Symlink request: filename=%s destination=%s",
1158               osi_LogSaveString(afsd_logp,filename),
1159               osi_LogSaveString(afsd_logp,destination));
1160
1161     if ( filename[0] == '\0' || destination[0] == '\0' )
1162         return -1;
1163
1164     fullname[0] = '\0';
1165     if (filename[0] == '.') {
1166         cm_GetCell_Gen(&filename[1], fullname, CM_FLAG_CREATE);
1167         if (stricmp(&filename[1],fullname) == 0)
1168             return -1;
1169     } else {
1170         cm_GetCell_Gen(filename, fullname, CM_FLAG_CREATE);
1171         if (stricmp(filename,fullname) == 0)
1172             return -1;
1173     }
1174
1175 #if !defined(DJGPP)
1176     if ( cm_FreelanceMountPointExists(filename) ||
1177          cm_FreelanceSymlinkExists(filename) )
1178         return -1;
1179 #endif
1180
1181     lock_ObtainMutex(&cm_Freelance_Lock);
1182
1183 #if !defined(DJGPP)
1184     if (RegCreateKeyEx( HKEY_LOCAL_MACHINE,
1185                         "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
1186                         0,
1187                         NULL,
1188                         REG_OPTION_NON_VOLATILE,
1189                         KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1190                         NULL,
1191                         &hkFreelanceSymlinks,
1192                         NULL) == ERROR_SUCCESS) {
1193
1194         RegQueryInfoKey( hkFreelanceSymlinks,
1195                          NULL,  /* lpClass */
1196                          NULL,  /* lpcClass */
1197                          NULL,  /* lpReserved */
1198                          NULL,  /* lpcSubKeys */
1199                          NULL,  /* lpcMaxSubKeyLen */
1200                          NULL,  /* lpcMaxClassLen */
1201                          &dwSymlinks, /* lpcValues */
1202                          NULL,  /* lpcMaxValueNameLen */
1203                          NULL,  /* lpcMaxValueLen */
1204                          NULL,  /* lpcbSecurityDescriptor */
1205                          NULL   /* lpftLastWriteTime */
1206                          );
1207
1208         sprintf(line, "%s:%s.", filename, destination);
1209
1210         /* If we are adding a new value, there must be an unused name
1211          * within the range 0 to dwSymlinks
1212          */
1213         for ( dwIndex = 0; dwIndex <= dwSymlinks; dwIndex++ ) {
1214             char szIndex[16];
1215             char szLink[1024];
1216
1217             dwSize = sizeof(szLink);
1218             sprintf(szIndex, "%d", dwIndex);
1219             if (RegQueryValueEx( hkFreelanceSymlinks, szIndex, 0, &dwType, szLink, &dwSize) != ERROR_SUCCESS) {
1220                 /* found an unused value */
1221                 dwType = REG_SZ;
1222                 dwSize = strlen(line) + 1;
1223                 RegSetValueEx( hkFreelanceSymlinks, szIndex, 0, dwType, line, dwSize);
1224                 break;
1225             } else {
1226                 int len = strlen(filename);
1227                 if ( dwType == REG_SZ && !strncmp(filename, szLink, len) && szLink[len] == ':') {
1228                     /* Replace the existing value */
1229                     dwType = REG_SZ;
1230                     dwSize = strlen(line) + 1;
1231                     RegSetValueEx( hkFreelanceSymlinks, szIndex, 0, dwType, line, dwSize);
1232                     break;
1233                 }
1234             }
1235         }
1236         RegCloseKey(hkFreelanceSymlinks);
1237     }
1238 #endif
1239     lock_ReleaseMutex(&cm_Freelance_Lock);
1240
1241     /* cm_reInitLocalMountPoints(); */
1242     if (fidp) {
1243         fidp->unique = 1;
1244         fidp->vnode = cm_noLocalMountPoints + 1;   /* vnode value of last mt pt */
1245     }
1246     cm_noteLocalMountPointChange();
1247     return 0;
1248 }
1249
1250 long cm_FreelanceRemoveSymlink(char *toremove)
1251 {
1252     char* cp;
1253     char line[512];
1254     char shortname[200];
1255     int found=0;
1256 #if !defined(DJGPP)
1257     HKEY hkFreelanceSymlinks = 0;
1258     DWORD dwType, dwSize;
1259     DWORD dwSymlinks;
1260     DWORD dwIndex;
1261 #endif
1262
1263     lock_ObtainMutex(&cm_Freelance_Lock);
1264
1265 #if !defined(DJGPP)
1266     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
1267                       "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
1268                       0,
1269                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1270                       &hkFreelanceSymlinks) == ERROR_SUCCESS) {
1271
1272         RegQueryInfoKey( hkFreelanceSymlinks,
1273                          NULL,  /* lpClass */
1274                          NULL,  /* lpcClass */
1275                          NULL,  /* lpReserved */
1276                          NULL,  /* lpcSubKeys */
1277                          NULL,  /* lpcMaxSubKeyLen */
1278                          NULL,  /* lpcMaxClassLen */
1279                          &dwSymlinks, /* lpcValues */
1280                          NULL,  /* lpcMaxValueNameLen */
1281                          NULL,  /* lpcMaxValueLen */
1282                          NULL,  /* lpcbSecurityDescriptor */
1283                          NULL   /* lpftLastWriteTime */
1284                          );
1285
1286         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
1287             TCHAR szValueName[16];
1288             DWORD dwValueSize = 16;
1289             dwSize = sizeof(line);
1290             RegEnumValue( hkFreelanceSymlinks, dwIndex, szValueName, &dwValueSize, NULL,
1291                           &dwType, line, &dwSize);
1292
1293             cp=strchr(line, ':');
1294             memcpy(shortname, line, cp-line);
1295             shortname[cp-line]=0;
1296
1297             if (!strcmp(shortname, toremove)) {
1298                 RegDeleteValue( hkFreelanceSymlinks, szValueName );
1299                 break;
1300             }
1301         }
1302         RegCloseKey(hkFreelanceSymlinks);
1303     }
1304 #endif
1305
1306     lock_ReleaseMutex(&cm_Freelance_Lock);
1307     cm_noteLocalMountPointChange();
1308     return 0;
1309 }
1310 #endif /* AFS_FREELANCE_CLIENT */