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() {
 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             sprintf(line,"%s#%s:root.cell.\n",rootCellName,rootCellName);
 478             dwType = REG_SZ;
 479             dwSize = strlen(line) + 1;
 480             RegSetValueEx( hkFreelance, "0", 0, dwType, line, dwSize);
 481             sprintf(line,".%s%%%s:root.cell.\n",rootCellName,rootCellName);
 482             dwSize = strlen(line) + 1;
 483             RegSetValueEx( hkFreelance, "1", 0, dwType, line, dwSize);
 484             dwMountPoints = 2;
 485         }
 486
 487         if (RegCreateKeyEx( HKEY_LOCAL_MACHINE,
 488                           "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
 489                           0,
 490                           NULL,
 491                           REG_OPTION_NON_VOLATILE,
 492                           KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
 493                           NULL,
 494                           &hkFreelanceSymlinks,
 495                           NULL) == ERROR_SUCCESS) {
 496
 497             RegQueryInfoKey( hkFreelanceSymlinks,
 498                              NULL,  /* lpClass */
 499                              NULL,  /* lpcClass */
 500                              NULL,  /* lpReserved */
 501                              NULL,  /* lpcSubKeys */
 502                              NULL,  /* lpcMaxSubKeyLen */
 503                              NULL,  /* lpcMaxClassLen */
 504                              &dwSymlinks, /* lpcValues */
 505                              NULL,  /* lpcMaxValueNameLen */
 506                              NULL,  /* lpcMaxValueLen */
 507                              NULL,  /* lpcbSecurityDescriptor */
 508                              NULL   /* lpftLastWriteTime */
 509                              );
 510         }
 511
 512         // get the number of entries there are from the first line
 513         // that we read
 514         cm_noLocalMountPoints = dwMountPoints + dwSymlinks;
 515
 516         // create space to store the local mount points
 517         cm_localMountPoints = malloc(sizeof(cm_localMountPoint_t) * cm_noLocalMountPoints);
 518         aLocalMountPoint = cm_localMountPoints;
 519
 520         // now we read n lines and parse them into local mount points
 521         // where n is the number of local mount points there are, as
 522         // determined above.
 523         // Each line in the ini file represents 1 local mount point and
 524         // is in the format xxx#yyy:zzz, where xxx is the directory
 525         // entry name, yyy is the cell name and zzz is the volume name.
 526         // #yyy:zzz together make up the mount point.
 527         for ( dwIndex = 0 ; dwIndex < dwMountPoints; dwIndex++ ) {
 528             TCHAR szValueName[16];
 529             DWORD dwValueSize = 16;
 530             dwSize = sizeof(line);
 531             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 532                           &dwType, line, &dwSize);
 533
 534             /* find the trailing dot; null terminate after it */
 535             t2 = strrchr(line, '.');
 536             if (t2)
 537                 *(t2+1) = '\0';
 538
 539             // line is not empty, so let's parse it
 540             t = strchr(line, '#');
 541             if (!t)
 542                 t = strchr(line, '%');
 543             // make sure that there is a '#' or '%' separator in the line
 544             if (!t) {
 545                 afsi_log("error occurred while parsing entry in %s: no # or %% separator in line %d", AFS_FREELANCE_INI, dwIndex);
 546                 fprintf(stderr, "error occurred while parsing entry in afs_freelance.ini: no # or %% separator in line %d", dwIndex);
 547                 cm_noLocalMountPoints--;
 548                 continue;
 549             }
 550
 551             aLocalMountPoint->fileType = CM_SCACHETYPE_MOUNTPOINT;
 552             aLocalMountPoint->namep=malloc(t-line+1);
 553             strncpy(aLocalMountPoint->namep, line, t-line);
 554             aLocalMountPoint->namep[t-line] = '\0';
 555
 556             /* copy the mount point string */
 557             aLocalMountPoint->mountPointStringp=malloc(strlen(t));
 558             strncpy(aLocalMountPoint->mountPointStringp, t, strlen(t)-1);
 559             aLocalMountPoint->mountPointStringp[strlen(t)-1] = '\0';
 560
 561             osi_Log2(afsd_logp,"found mount point: name %s, string %s",
 562                       osi_LogSaveString(afsd_logp,aLocalMountPoint->namep),
 563                       osi_LogSaveString(afsd_logp,aLocalMountPoint->mountPointStringp));
 564
 565             aLocalMountPoint++;
 566         }
 567
 568         for ( dwIndex = 0 ; dwIndex < dwSymlinks; dwIndex++ ) {
 569             TCHAR szValueName[16];
 570             DWORD dwValueSize = 16;
 571             dwSize = sizeof(line);
 572             RegEnumValue( hkFreelanceSymlinks, dwIndex, szValueName, &dwValueSize, NULL,
 573                           &dwType, line, &dwSize);
 574
 575             /* find the trailing dot; null terminate after it */
 576             t2 = strrchr(line, '.');
 577             if (t2)
 578                 *(t2+1) = '\0';
 579
 580             // line is not empty, so let's parse it
 581             t = strchr(line, ':');
 582
 583             // make sure that there is a ':' separator in the line
 584             if (!t) {
 585                 afsi_log("error occurred while parsing symlink entry: no ':' separator in line %d", dwIndex);
 586                 fprintf(stderr, "error occurred while parsing symlink entry: no ':' separator in line %d", dwIndex);
 587                 cm_noLocalMountPoints--;
 588                 continue;
 589             }
 590
 591             aLocalMountPoint->fileType = CM_SCACHETYPE_SYMLINK;
 592             aLocalMountPoint->namep=malloc(t-line+1);
 593             strncpy(aLocalMountPoint->namep, line, t-line);
 594             aLocalMountPoint->namep[t-line] = '\0';
 595
 596             /* copy the symlink string */
 597             aLocalMountPoint->mountPointStringp=malloc(strlen(t)-1);
 598             strncpy(aLocalMountPoint->mountPointStringp, t+1, strlen(t)-2);
 599             aLocalMountPoint->mountPointStringp[strlen(t)-2] = '\0';
 600
 601             osi_Log2(afsd_logp,"found symlink: name %s, string %s",
 602                       osi_LogSaveString(afsd_logp,aLocalMountPoint->namep),
 603                       osi_LogSaveString(afsd_logp,aLocalMountPoint->mountPointStringp));
 604
 605             aLocalMountPoint++;
 606         }
 607
 608         if ( hkFreelanceSymlinks )
 609             RegCloseKey( hkFreelanceSymlinks );
 610         RegCloseKey(hkFreelance);
 611         return 0;
 612     }
 613 #endif
 614
 615     /* What follows is the old code to read freelance mount points
 616      * out of a text file modified to copy the data into the registry
 617      */
 618     cm_GetConfigDir(hdir);
 619     strcat(hdir, AFS_FREELANCE_INI);
 620     // open the ini file for reading
 621     fp = fopen(hdir, "r");
 622     if (!fp) {
 623         /* look in the Windows directory where we used to store the file */
 624         GetWindowsDirectory(hdir, sizeof(hdir));
 625         strcat(hdir,"\\");
 626         strcat(hdir, AFS_FREELANCE_INI);
 627         fp = fopen(hdir, "r");
 628     }
 629
 630 #if !defined(DJGPP)
 631     RegCreateKeyEx( HKEY_LOCAL_MACHINE,
 632                     "SOFTWARE\\OpenAFS\\Client\\Freelance",
 633                     0,
 634                     NULL,
 635                     REG_OPTION_NON_VOLATILE,
 636                     KEY_READ|KEY_WRITE,
 637                     NULL,
 638                     &hkFreelance,
 639                     NULL);
 640     dwIndex = 0;
 641 #endif
 642
 643     if (!fp) {
 644 #if !defined(DJGPP);
 645         RegCloseKey(hkFreelance);
 646 #endif
 647         rootCellName[0] = '.';
 648         code = cm_GetRootCellName(&rootCellName[1]);
 649         if (code == 0) {
 650             cm_FreelanceAddMount(&rootCellName[1], &rootCellName[1], "root.cell", 0, NULL);
 651             cm_FreelanceAddMount(rootCellName, &rootCellName[1], "root.cell", 1, NULL);
 652         }
 653         return 0;
 654     }
 655
 656     // we successfully opened the file
 657     osi_Log0(afsd_logp,"opened afs_freelance.ini");
 658
 659     // now we read the first line to see how many entries
 660     // there are
 661     fgets(line, sizeof(line), fp);
 662
 663     // if the line is empty at any point when we're reading
 664     // we're screwed. report error and return.
 665     if (*line==0) {
 666         afsi_log("error occurred while reading afs_freelance.ini");
 667         fprintf(stderr, "error occurred while reading afs_freelance.ini");
 668         return -1;
 669     }
 670
 671     // get the number of entries there are from the first line
 672     // that we read
 673     cm_noLocalMountPoints = atoi(line);
 674
 675     if (cm_noLocalMountPoints > 0) {
 676         // create space to store the local mount points
 677         cm_localMountPoints = malloc(sizeof(cm_localMountPoint_t) * cm_noLocalMountPoints);
 678         aLocalMountPoint = cm_localMountPoints;
 679     }
 680
 681     // now we read n lines and parse them into local mount points
 682     // where n is the number of local mount points there are, as
 683     // determined above.
 684     // Each line in the ini file represents 1 local mount point and
 685     // is in the format xxx#yyy:zzz, where xxx is the directory
 686     // entry name, yyy is the cell name and zzz is the volume name.
 687     // #yyy:zzz together make up the mount point.
 688     for (i=0; i<cm_noLocalMountPoints; i++) {
 689         fgets(line, sizeof(line), fp);
 690         // check that the line is not empty
 691         if (line[0]==0) {
 692             afsi_log("error occurred while parsing entry in %s: empty line in line %d", AFS_FREELANCE_INI, i);
 693             fprintf(stderr, "error occurred while parsing entry in afs_freelance.ini: empty line in line %d", i);
 694             return -1;
 695         }
 696
 697         /* find the trailing dot; null terminate after it */
 698         t2 = strrchr(line, '.');
 699         if (t2)
 700             *(t2+1) = '\0';
 701
 702 #if !defined(DJGPP)
 703         if ( hkFreelance ) {
 704             char szIndex[16];
 705             /* we are migrating to the registry */
 706             sprintf(szIndex,"%d",dwIndex++);
 707             dwType = REG_SZ;
 708             dwSize = strlen(line) + 1;
 709             RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
 710         }
 711 #endif
 712
 713         // line is not empty, so let's parse it
 714         t = strchr(line, '#');
 715         if (!t)
 716             t = strchr(line, '%');
 717         // make sure that there is a '#' or '%' separator in the line
 718         if (!t) {
 719             afsi_log("error occurred while parsing entry in %s: no # or %% separator in line %d", AFS_FREELANCE_INI, i);
 720             fprintf(stderr, "error occurred while parsing entry in afs_freelance.ini: no # or %% separator in line %d", i);
 721             return -1;
 722         }
 723         aLocalMountPoint->namep=malloc(t-line+1);
 724         memcpy(aLocalMountPoint->namep, line, t-line);
 725         *(aLocalMountPoint->namep + (t-line)) = 0;
 726
 727         aLocalMountPoint->mountPointStringp=malloc(strlen(line) - (t-line) + 1);
 728         memcpy(aLocalMountPoint->mountPointStringp, t, strlen(line)-(t-line)-1);
 729         *(aLocalMountPoint->mountPointStringp + (strlen(line)-(t-line)-1)) = 0;
 730
 731         osi_Log2(afsd_logp,"found mount point: name %s, string %s",
 732                   aLocalMountPoint->namep,
 733                   aLocalMountPoint->mountPointStringp);
 734
 735         aLocalMountPoint++;
 736     }
 737     fclose(fp);
 738 #if !defined(DJGPP)
 739     if ( hkFreelance ) {
 740         RegCloseKey(hkFreelance);
 741         DeleteFile(hdir);
 742     }
 743 #endif
 744     return 0;
 745 }
 746
 747 int cm_getNoLocalMountPoints() {
 748     return cm_noLocalMountPoints;
 749 }
 750
 751 #if !defined(DJGPP)
 752 long cm_FreelanceMountPointExists(char * filename)
 753 {
 754     char* cp;
 755     char line[512];
 756     char shortname[200];
 757     int found = 0;
 758     HKEY hkFreelance = 0;
 759     DWORD dwType, dwSize;
 760     DWORD dwMountPoints;
 761     DWORD dwIndex;
 762
 763     lock_ObtainMutex(&cm_Freelance_Lock);
 764
 765     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 766                       "SOFTWARE\\OpenAFS\\Client\\Freelance",
 767                       0,
 768                       KEY_READ|KEY_QUERY_VALUE,
 769                       &hkFreelance) == ERROR_SUCCESS)
 770     {
 771         RegQueryInfoKey( hkFreelance,
 772                          NULL,  /* lpClass */
 773                          NULL,  /* lpcClass */
 774                          NULL,  /* lpReserved */
 775                          NULL,  /* lpcSubKeys */
 776                          NULL,  /* lpcMaxSubKeyLen */
 777                          NULL,  /* lpcMaxClassLen */
 778                          &dwMountPoints, /* lpcValues */
 779                          NULL,  /* lpcMaxValueNameLen */
 780                          NULL,  /* lpcMaxValueLen */
 781                          NULL,  /* lpcbSecurityDescriptor */
 782                          NULL   /* lpftLastWriteTime */
 783                          );
 784
 785         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
 786             TCHAR szValueName[16];
 787             DWORD dwValueSize = 16;
 788             dwSize = sizeof(line);
 789             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 790                           &dwType, line, &dwSize);
 791
 792             cp=strchr(line, '#');
 793             if (!cp)
 794                 cp=strchr(line, '%');
 795             memcpy(shortname, line, cp-line);
 796             shortname[cp-line]=0;
 797
 798             if (!strcmp(shortname, filename)) {
 799                 found = 1;
 800                 break;
 801             }
 802         }
 803         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
 804             TCHAR szValueName[16];
 805             DWORD dwValueSize = 16;
 806             dwSize = sizeof(line);
 807             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 808                           &dwType, line, &dwSize);
 809
 810             cp=strchr(line, '#');
 811             if (!cp)
 812                 cp=strchr(line, '%');
 813             memcpy(shortname, line, cp-line);
 814             shortname[cp-line]=0;
 815
 816             if (!stricmp(shortname, filename)) {
 817                 found = 1;
 818                 break;
 819             }
 820         }
 821         RegCloseKey(hkFreelance);
 822     }
 823
 824     lock_ReleaseMutex(&cm_Freelance_Lock);
 825
 826     return found;
 827 }
 828
 829 long cm_FreelanceSymlinkExists(char * filename)
 830 {
 831     char* cp;
 832     char line[512];
 833     char shortname[200];
 834     int found = 0;
 835     HKEY hkFreelance = 0;
 836     DWORD dwType, dwSize;
 837     DWORD dwSymlinks;
 838     DWORD dwIndex;
 839
 840     lock_ObtainMutex(&cm_Freelance_Lock);
 841
 842     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 843                       "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
 844                       0,
 845                       KEY_READ|KEY_QUERY_VALUE,
 846                       &hkFreelance) == ERROR_SUCCESS)
 847     {
 848         RegQueryInfoKey( hkFreelance,
 849                          NULL,  /* lpClass */
 850                          NULL,  /* lpcClass */
 851                          NULL,  /* lpReserved */
 852                          NULL,  /* lpcSubKeys */
 853                          NULL,  /* lpcMaxSubKeyLen */
 854                          NULL,  /* lpcMaxClassLen */
 855                          &dwSymlinks, /* lpcValues */
 856                          NULL,  /* lpcMaxValueNameLen */
 857                          NULL,  /* lpcMaxValueLen */
 858                          NULL,  /* lpcbSecurityDescriptor */
 859                          NULL   /* lpftLastWriteTime */
 860                          );
 861
 862         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
 863             TCHAR szValueName[16];
 864             DWORD dwValueSize = 16;
 865             dwSize = sizeof(line);
 866             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 867                           &dwType, line, &dwSize);
 868
 869             cp=strchr(line, ':');
 870             memcpy(shortname, line, cp-line);
 871             shortname[cp-line]=0;
 872
 873             if (!strcmp(shortname, filename)) {
 874                 found = 1;
 875                 break;
 876             }
 877         }
 878         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
 879             TCHAR szValueName[16];
 880             DWORD dwValueSize = 16;
 881             dwSize = sizeof(line);
 882             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 883                           &dwType, line, &dwSize);
 884
 885             cp=strchr(line, ':');
 886             memcpy(shortname, line, cp-line);
 887             shortname[cp-line]=0;
 888
 889             if (!stricmp(shortname, filename)) {
 890                 found = 1;
 891                 break;
 892             }
 893         }
 894         RegCloseKey(hkFreelance);
 895     }
 896
 897     lock_ReleaseMutex(&cm_Freelance_Lock);
 898
 899     return found;
 900 }
 901 #endif
 902
 903 long cm_FreelanceAddMount(char *filename, char *cellname, char *volume, int rw, cm_fid_t *fidp)
 904 {
 905     FILE *fp;
 906     char hfile[120];
 907     char line[512];
 908     char fullname[200];
 909     int n;
 910     int alias = 0;
 911 #if !defined(DJGPP)
 912     HKEY hkFreelance = 0;
 913     DWORD dwType, dwSize;
 914     DWORD dwMountPoints;
 915     DWORD dwIndex;
 916 #endif
 917
 918     /* before adding, verify the cell name; if it is not a valid cell,
 919        don't add the mount point.
 920        allow partial matches as a means of poor man's alias. */
 921     /* major performance issue? */
 922     osi_Log4(afsd_logp,"Freelance Add Mount request: filename=%s cellname=%s volume=%s %s",
 923               osi_LogSaveString(afsd_logp,filename),
 924               osi_LogSaveString(afsd_logp,cellname),
 925               osi_LogSaveString(afsd_logp,volume),
 926               rw ? "rw" : "ro");
 927
 928     if ( filename[0] == '\0' || cellname[0] == '\0' || volume[0] == '\0' )
 929         return -1;
 930
 931     if (cellname[0] == '.') {
 932         if (!cm_GetCell_Gen(&cellname[1], fullname, CM_FLAG_CREATE))
 933             return -1;
 934     } else {
 935         if (!cm_GetCell_Gen(cellname, fullname, CM_FLAG_CREATE))
 936             return -1;
 937     }
 938
 939 #if !defined(DJGPP)
 940     if ( cm_FreelanceMountPointExists(filename) ||
 941          cm_FreelanceSymlinkExists(filename) )
 942         return -1;
 943 #endif
 944
 945     osi_Log1(afsd_logp,"Freelance Adding Mount for Cell: %s",
 946               osi_LogSaveString(afsd_logp,cellname));
 947
 948     lock_ObtainMutex(&cm_Freelance_Lock);
 949
 950 #if !defined(DJGPP)
 951     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 952                       "SOFTWARE\\OpenAFS\\Client\\Freelance",
 953                       0,
 954                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
 955                       &hkFreelance) == ERROR_SUCCESS) {
 956
 957         RegQueryInfoKey( hkFreelance,
 958                          NULL,  /* lpClass */
 959                          NULL,  /* lpcClass */
 960                          NULL,  /* lpReserved */
 961                          NULL,  /* lpcSubKeys */
 962                          NULL,  /* lpcMaxSubKeyLen */
 963                          NULL,  /* lpcMaxClassLen */
 964                          &dwMountPoints, /* lpcValues */
 965                          NULL,  /* lpcMaxValueNameLen */
 966                          NULL,  /* lpcMaxValueLen */
 967                          NULL,  /* lpcbSecurityDescriptor */
 968                          NULL   /* lpftLastWriteTime */
 969                          );
 970
 971         if (rw)
 972             sprintf(line, "%s%%%s:%s", filename, fullname, volume);
 973         else
 974             sprintf(line, "%s#%s:%s", filename, fullname, volume);
 975
 976         /* If we are adding a new value, there must be an unused name
 977          * within the range 0 to dwMountPoints
 978          */
 979         for ( dwIndex = 0; dwIndex <= dwMountPoints; dwIndex++ ) {
 980             char szIndex[16];
 981             char szMount[1024];
 982
 983             dwSize = sizeof(szMount);
 984             sprintf(szIndex, "%d", dwIndex);
 985             if (RegQueryValueEx( hkFreelance, szIndex, 0, &dwType, szMount, &dwSize) != ERROR_SUCCESS) {
 986                 /* found an unused value */
 987                 dwType = REG_SZ;
 988                 dwSize = strlen(line) + 1;
 989                 RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
 990                 break;
 991             } else {
 992                 int len = strlen(filename);
 993                 if ( dwType == REG_SZ && !strncmp(filename, szMount, len) &&
 994                      (szMount[len] == '%' || szMount[len] == '#')) {
 995                     /* Replace the existing value */
 996                     dwType = REG_SZ;
 997                     dwSize = strlen(line) + 1;
 998                     RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
 999                     break;
1000                 }
1001             }
1002         }
1003         RegCloseKey(hkFreelance);
1004     } else
1005 #endif
1006     {
1007         cm_GetConfigDir(hfile);
1008         strcat(hfile, AFS_FREELANCE_INI);
1009         fp = fopen(hfile, "r+");
1010         if (!fp)
1011             return CM_ERROR_INVAL;
1012         fgets(line, sizeof(line), fp);
1013         n = atoi(line);
1014         n++;
1015         fseek(fp, 0, SEEK_SET);
1016         fprintf(fp, "%d", n);
1017         fseek(fp, 0, SEEK_END);
1018         if (rw)
1019             fprintf(fp, "%s%%%s:%s\n", filename, fullname, volume);
1020         else
1021             fprintf(fp, "%s#%s:%s\n", filename, fullname, volume);
1022         fclose(fp);
1023     }
1024     lock_ReleaseMutex(&cm_Freelance_Lock);
1025
1026     /* cm_reInitLocalMountPoints(); */
1027     if (fidp) {
1028         fidp->unique = 1;
1029         fidp->vnode = cm_noLocalMountPoints + 1;   /* vnode value of last mt pt */
1030     }
1031     cm_noteLocalMountPointChange();
1032     return 0;
1033 }
1034
1035 long cm_FreelanceRemoveMount(char *toremove)
1036 {
1037     int i, n;
1038     char* cp;
1039     char line[512];
1040     char shortname[200];
1041     char hfile[120], hfile2[120];
1042     FILE *fp1, *fp2;
1043     int found=0;
1044 #if !defined(DJGPP)
1045     HKEY hkFreelance = 0;
1046     DWORD dwType, dwSize;
1047     DWORD dwMountPoints;
1048     DWORD dwIndex;
1049 #endif
1050
1051     lock_ObtainMutex(&cm_Freelance_Lock);
1052
1053 #if !defined(DJGPP)
1054     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
1055                       "SOFTWARE\\OpenAFS\\Client\\Freelance",
1056                       0,
1057                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1058                       &hkFreelance) == ERROR_SUCCESS) {
1059
1060         RegQueryInfoKey( hkFreelance,
1061                          NULL,  /* lpClass */
1062                          NULL,  /* lpcClass */
1063                          NULL,  /* lpReserved */
1064                          NULL,  /* lpcSubKeys */
1065                          NULL,  /* lpcMaxSubKeyLen */
1066                          NULL,  /* lpcMaxClassLen */
1067                          &dwMountPoints, /* lpcValues */
1068                          NULL,  /* lpcMaxValueNameLen */
1069                          NULL,  /* lpcMaxValueLen */
1070                          NULL,  /* lpcbSecurityDescriptor */
1071                          NULL   /* lpftLastWriteTime */
1072                          );
1073
1074         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
1075             TCHAR szValueName[16];
1076             DWORD dwValueSize = 16;
1077             dwSize = sizeof(line);
1078             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
1079                           &dwType, line, &dwSize);
1080
1081             cp=strchr(line, '#');
1082             if (!cp)
1083                 cp=strchr(line, '%');
1084             memcpy(shortname, line, cp-line);
1085             shortname[cp-line]=0;
1086
1087             if (!strcmp(shortname, toremove)) {
1088                 RegDeleteValue( hkFreelance, szValueName );
1089                 break;
1090             }
1091         }
1092         RegCloseKey(hkFreelance);
1093     } else
1094 #endif
1095     {
1096         cm_GetConfigDir(hfile);
1097         strcat(hfile, AFS_FREELANCE_INI);
1098         strcpy(hfile2, hfile);
1099         strcat(hfile2, "2");
1100         fp1=fopen(hfile, "r+");
1101         if (!fp1)
1102             return CM_ERROR_INVAL;
1103         fp2=fopen(hfile2, "w+");
1104         if (!fp2) {
1105             fclose(fp1);
1106             return CM_ERROR_INVAL;
1107         }
1108
1109         fgets(line, sizeof(line), fp1);
1110         n=atoi(line);
1111         fprintf(fp2, "%d\n", n-1);
1112
1113         for (i=0; i<n; i++) {
1114             fgets(line, sizeof(line), fp1);
1115             cp=strchr(line, '#');
1116             if (!cp)
1117                 cp=strchr(line, '%');
1118             memcpy(shortname, line, cp-line);
1119             shortname[cp-line]=0;
1120
1121             if (strcmp(shortname, toremove)==0) {
1122
1123             } else {
1124                 found = 1;
1125                 fputs(line, fp2);
1126             }
1127         }
1128
1129         fclose(fp1);
1130         fclose(fp2);
1131         if (!found)
1132             return CM_ERROR_NOSUCHFILE;
1133
1134         unlink(hfile);
1135         rename(hfile2, hfile);
1136     }
1137
1138     lock_ReleaseMutex(&cm_Freelance_Lock);
1139     cm_noteLocalMountPointChange();
1140     return 0;
1141 }
1142
1143 long cm_FreelanceAddSymlink(char *filename, char *destination, cm_fid_t *fidp)
1144 {
1145     FILE *fp;
1146     char hfile[120];
1147     char line[512];
1148     char fullname[200];
1149     int n;
1150     int alias = 0;
1151 #if !defined(DJGPP)
1152     HKEY hkFreelanceSymlinks = 0;
1153     DWORD dwType, dwSize;
1154     DWORD dwSymlinks;
1155     DWORD dwIndex;
1156 #endif
1157
1158     /* before adding, verify the filename.  If it is already in use, either as
1159      * as mount point or a cellname, do not permit the creation of the symlink.
1160      */
1161     osi_Log2(afsd_logp,"Freelance Add Symlink request: filename=%s destination=%s",
1162               osi_LogSaveString(afsd_logp,filename),
1163               osi_LogSaveString(afsd_logp,destination));
1164
1165     if ( filename[0] == '\0' || destination[0] == '\0' )
1166         return -1;
1167
1168     fullname[0] = '\0';
1169     if (filename[0] == '.') {
1170         cm_GetCell_Gen(&filename[1], fullname, CM_FLAG_CREATE);
1171         if (stricmp(&filename[1],fullname) == 0)
1172             return -1;
1173     } else {
1174         cm_GetCell_Gen(filename, fullname, CM_FLAG_CREATE);
1175         if (stricmp(filename,fullname) == 0)
1176             return -1;
1177     }
1178
1179 #if !defined(DJGPP)
1180     if ( cm_FreelanceMountPointExists(filename) ||
1181          cm_FreelanceSymlinkExists(filename) )
1182         return -1;
1183 #endif
1184
1185     lock_ObtainMutex(&cm_Freelance_Lock);
1186
1187 #if !defined(DJGPP)
1188     if (RegCreateKeyEx( HKEY_LOCAL_MACHINE,
1189                         "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
1190                         0,
1191                         NULL,
1192                         REG_OPTION_NON_VOLATILE,
1193                         KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1194                         NULL,
1195                         &hkFreelanceSymlinks,
1196                         NULL) == ERROR_SUCCESS) {
1197
1198         RegQueryInfoKey( hkFreelanceSymlinks,
1199                          NULL,  /* lpClass */
1200                          NULL,  /* lpcClass */
1201                          NULL,  /* lpReserved */
1202                          NULL,  /* lpcSubKeys */
1203                          NULL,  /* lpcMaxSubKeyLen */
1204                          NULL,  /* lpcMaxClassLen */
1205                          &dwSymlinks, /* lpcValues */
1206                          NULL,  /* lpcMaxValueNameLen */
1207                          NULL,  /* lpcMaxValueLen */
1208                          NULL,  /* lpcbSecurityDescriptor */
1209                          NULL   /* lpftLastWriteTime */
1210                          );
1211
1212         sprintf(line, "%s:%s.", filename, destination);
1213
1214         /* If we are adding a new value, there must be an unused name
1215          * within the range 0 to dwSymlinks
1216          */
1217         for ( dwIndex = 0; dwIndex <= dwSymlinks; dwIndex++ ) {
1218             char szIndex[16];
1219             char szLink[1024];
1220
1221             dwSize = sizeof(szLink);
1222             sprintf(szIndex, "%d", dwIndex);
1223             if (RegQueryValueEx( hkFreelanceSymlinks, szIndex, 0, &dwType, szLink, &dwSize) != ERROR_SUCCESS) {
1224                 /* found an unused value */
1225                 dwType = REG_SZ;
1226                 dwSize = strlen(line) + 1;
1227                 RegSetValueEx( hkFreelanceSymlinks, szIndex, 0, dwType, line, dwSize);
1228                 break;
1229             } else {
1230                 int len = strlen(filename);
1231                 if ( dwType == REG_SZ && !strncmp(filename, szLink, len) && szLink[len] == ':') {
1232                     /* Replace the existing value */
1233                     dwType = REG_SZ;
1234                     dwSize = strlen(line) + 1;
1235                     RegSetValueEx( hkFreelanceSymlinks, szIndex, 0, dwType, line, dwSize);
1236                     break;
1237                 }
1238             }
1239         }
1240         RegCloseKey(hkFreelanceSymlinks);
1241     }
1242 #endif
1243     lock_ReleaseMutex(&cm_Freelance_Lock);
1244
1245     /* cm_reInitLocalMountPoints(); */
1246     if (fidp) {
1247         fidp->unique = 1;
1248         fidp->vnode = cm_noLocalMountPoints + 1;   /* vnode value of last mt pt */
1249     }
1250     cm_noteLocalMountPointChange();
1251     return 0;
1252 }
1253
1254 long cm_FreelanceRemoveSymlink(char *toremove)
1255 {
1256     int i, n;
1257     char* cp;
1258     char line[512];
1259     char shortname[200];
1260     char hfile[120], hfile2[120];
1261     FILE *fp1, *fp2;
1262     int found=0;
1263 #if !defined(DJGPP)
1264     HKEY hkFreelanceSymlinks = 0;
1265     DWORD dwType, dwSize;
1266     DWORD dwSymlinks;
1267     DWORD dwIndex;
1268 #endif
1269
1270     lock_ObtainMutex(&cm_Freelance_Lock);
1271
1272 #if !defined(DJGPP)
1273     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
1274                       "SOFTWARE\\OpenAFS\\Client\\Freelance\\Symlinks",
1275                       0,
1276                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1277                       &hkFreelanceSymlinks) == ERROR_SUCCESS) {
1278
1279         RegQueryInfoKey( hkFreelanceSymlinks,
1280                          NULL,  /* lpClass */
1281                          NULL,  /* lpcClass */
1282                          NULL,  /* lpReserved */
1283                          NULL,  /* lpcSubKeys */
1284                          NULL,  /* lpcMaxSubKeyLen */
1285                          NULL,  /* lpcMaxClassLen */
1286                          &dwSymlinks, /* lpcValues */
1287                          NULL,  /* lpcMaxValueNameLen */
1288                          NULL,  /* lpcMaxValueLen */
1289                          NULL,  /* lpcbSecurityDescriptor */
1290                          NULL   /* lpftLastWriteTime */
1291                          );
1292
1293         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
1294             TCHAR szValueName[16];
1295             DWORD dwValueSize = 16;
1296             dwSize = sizeof(line);
1297             RegEnumValue( hkFreelanceSymlinks, dwIndex, szValueName, &dwValueSize, NULL,
1298                           &dwType, line, &dwSize);
1299
1300             cp=strchr(line, ':');
1301             memcpy(shortname, line, cp-line);
1302             shortname[cp-line]=0;
1303
1304             if (!strcmp(shortname, toremove)) {
1305                 RegDeleteValue( hkFreelanceSymlinks, szValueName );
1306                 break;
1307             }
1308         }
1309         RegCloseKey(hkFreelanceSymlinks);
1310     }
1311 #endif
1312
1313     lock_ReleaseMutex(&cm_Freelance_Lock);
1314     cm_noteLocalMountPointChange();
1315     return 0;
1316 }
1317 #endif /* AFS_FREELANCE_CLIENT */