src/WINNT/afsd/cm_freelance.c

   1 #include <afs/param.h>
   2 #include <afs/stds.h>
   3
   4 #include <windows.h>
   5 #include <winreg.h>
   6 #include <winsock2.h>
   7 #include <stdlib.h>
   8 #include <malloc.h>
   9 #include <string.h>
  10
  11 #include <WINNT/afsreg.h>
  12 #include "afsd.h"
  13 #include <rx/rx.h>
  14
  15 #ifdef AFS_FREELANCE_CLIENT
  16 #include "cm_freelance.h"
  17 #include "stdio.h"
  18
  19 extern void afsi_log(char *pattern, ...);
  20
  21 int cm_noLocalMountPoints;
  22 int cm_fakeDirSize;
  23 int cm_fakeDirCallback=0;
  24 int cm_fakeGettingCallback=0;
  25 cm_localMountPoint_t* cm_localMountPoints;
  26 osi_mutex_t cm_Freelance_Lock;
  27 int cm_localMountPointChangeFlag = 0;
  28 int cm_freelanceEnabled = 1;
  29 time_t FakeFreelanceModTime = 0x3b49f6e2;
  30
  31 static int freelance_ShutdownFlag = 0;
  32 static HANDLE hFreelanceChangeEvent = 0;
  33 static HANDLE hFreelanceSymlinkChangeEvent = 0;
  34
  35 void cm_InitFakeRootDir();
  36
  37 void cm_FreelanceChangeNotifier(void * parmp) {
  38     HKEY   hkFreelance = 0;
  39
  40     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
  41                       AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance",
  42                       0,
  43                       KEY_NOTIFY,
  44                       &hkFreelance) == ERROR_SUCCESS) {
  45
  46         hFreelanceChangeEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
  47         if (hFreelanceChangeEvent == NULL) {
  48             RegCloseKey(hkFreelance);
  49             return;
  50         }
  51     }
  52
  53     while ( TRUE ) {
  54     /* check hFreelanceChangeEvent to see if it is set.
  55      * if so, call cm_noteLocalMountPointChange()
  56      */
  57         if (RegNotifyChangeKeyValue( hkFreelance,   /* hKey */
  58                                      FALSE,         /* bWatchSubtree */
  59                                      REG_NOTIFY_CHANGE_LAST_SET, /* dwNotifyFilter */
  60                                      hFreelanceChangeEvent, /* hEvent */
  61                                      TRUE          /* fAsynchronous */
  62                                      ) != ERROR_SUCCESS) {
  63             RegCloseKey(hkFreelance);
  64             CloseHandle(hFreelanceChangeEvent);
  65             hFreelanceChangeEvent = 0;
  66             return;
  67         }
  68
  69         if (WaitForSingleObject(hFreelanceChangeEvent, INFINITE) == WAIT_OBJECT_0)
  70         {
  71             if (freelance_ShutdownFlag == 1) {
  72                 RegCloseKey(hkFreelance);
  73                 CloseHandle(hFreelanceChangeEvent);
  74                 hFreelanceChangeEvent = 0;
  75                 return;
  76             }
  77             cm_noteLocalMountPointChange();
  78         }
  79     }
  80 }
  81
  82 void cm_FreelanceSymlinkChangeNotifier(void * parmp) {
  83     HKEY   hkFreelance = 0;
  84
  85     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
  86                       AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance\\Symlinks",
  87                       0,
  88                       KEY_NOTIFY,
  89                       &hkFreelance) == ERROR_SUCCESS) {
  90
  91         hFreelanceSymlinkChangeEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
  92         if (hFreelanceSymlinkChangeEvent == NULL) {
  93             RegCloseKey(hkFreelance);
  94             return;
  95         }
  96     }
  97
  98     while ( TRUE ) {
  99     /* check hFreelanceSymlinkChangeEvent to see if it is set.
 100      * if so, call cm_noteLocalMountPointSymlinkChange()
 101      */
 102         if (RegNotifyChangeKeyValue( hkFreelance,   /* hKey */
 103                                      FALSE,         /* bWatchSubtree */
 104                                      REG_NOTIFY_CHANGE_LAST_SET, /* dwNotifyFilter */
 105                                      hFreelanceSymlinkChangeEvent, /* hEvent */
 106                                      TRUE          /* fAsynchronous */
 107                                      ) != ERROR_SUCCESS) {
 108             RegCloseKey(hkFreelance);
 109             CloseHandle(hFreelanceSymlinkChangeEvent);
 110             hFreelanceSymlinkChangeEvent = 0;
 111             return;
 112         }
 113
 114         if (WaitForSingleObject(hFreelanceSymlinkChangeEvent, INFINITE) == WAIT_OBJECT_0)
 115         {
 116             if (freelance_ShutdownFlag == 1) {
 117                 RegCloseKey(hkFreelance);
 118                 CloseHandle(hFreelanceSymlinkChangeEvent);
 119                 hFreelanceSymlinkChangeEvent = 0;
 120                 return;
 121             }
 122             cm_noteLocalMountPointChange();
 123         }
 124     }
 125 }
 126
 127 void
 128 cm_FreelanceShutdown(void)
 129 {
 130     freelance_ShutdownFlag = 1;
 131     if (hFreelanceChangeEvent != 0)
 132         thrd_SetEvent(hFreelanceChangeEvent);
 133     if (hFreelanceSymlinkChangeEvent != 0)
 134         thrd_SetEvent(hFreelanceSymlinkChangeEvent);
 135 }
 136
 137 void cm_InitFreelance() {
 138     thread_t phandle;
 139     int lpid;
 140
 141     lock_InitializeMutex(&cm_Freelance_Lock, "Freelance Lock");
 142
 143     // make sure we sync the data version to the cached root scache_t
 144     if (cm_data.rootSCachep && cm_data.rootSCachep->fid.cell == AFS_FAKE_ROOT_CELL_ID)
 145         cm_data.fakeDirVersion = cm_data.rootSCachep->dataVersion;
 146
 147     // yj: first we make a call to cm_initLocalMountPoints
 148     // to read all the local mount points from an ini file
 149     cm_InitLocalMountPoints();
 150
 151     // then we make a call to InitFakeRootDir to create
 152     // a fake root directory based on the local mount points
 153     cm_InitFakeRootDir();
 154     // --- end of yj code
 155
 156     /* Start the registry monitor */
 157     phandle = thrd_Create(NULL, 65536, (ThreadFunc) cm_FreelanceChangeNotifier,
 158                           NULL, 0, &lpid, "cm_FreelanceChangeNotifier");
 159     osi_assert(phandle != NULL);
 160     thrd_CloseHandle(phandle);
 161
 162     phandle = thrd_Create(NULL, 65536, (ThreadFunc) cm_FreelanceSymlinkChangeNotifier,
 163                           NULL, 0, &lpid, "cm_FreelanceSymlinkChangeNotifier");
 164     osi_assert(phandle != NULL);
 165     thrd_CloseHandle(phandle);
 166 }
 167
 168 /* yj: Initialization of the fake root directory */
 169 /* to be called while holding freelance lock unless during init. */
 170 void cm_InitFakeRootDir() {
 171     int i, t1, t2;
 172     char* currentPos;
 173     int noChunks;
 174
 175     // allocate space for the fake info
 176     cm_dirHeader_t fakeDirHeader;
 177     cm_dirEntry_t fakeEntry;
 178     cm_pageHeader_t fakePageHeader;
 179
 180     // i'm going to calculate how much space is needed for
 181     // this fake root directory. we have these rules:
 182     // 1. there are cm_noLocalMountPoints number of entries
 183     // 2. each page is CM_DIR_PAGESIZE in size
 184     // 3. the first 13 chunks of the first page are used for
 185     //    some header stuff
 186     // 4. the first chunk of all subsequent pages are used
 187     //    for page header stuff
 188     // 5. a max of CM_DIR_EPP entries are allowed per page
 189     // 6. each entry takes 1 or more chunks, depending on
 190     //    the size of the mount point string, as determined
 191     //    by cm_NameEntries
 192     // 7. each chunk is CM_DIR_CHUNKSIZE bytes
 193
 194     int CPP = CM_DIR_PAGESIZE / CM_DIR_CHUNKSIZE;
 195     int curChunk = 13;  // chunks 0 - 12 are used for header stuff
 196                         // of the first page in the directory
 197     int curPage = 0;
 198     int curDirEntry = 0;
 199     int curDirEntryInPage = 0;
 200     int sizeOfCurEntry;
 201     int dirSize;
 202
 203     /* Reserve 2 directory chunks for "." and ".." */
 204     curChunk += 2;
 205
 206     while (curDirEntry<cm_noLocalMountPoints) {
 207         sizeOfCurEntry = cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0);
 208         if ((curChunk + sizeOfCurEntry >= CPP) ||
 209              (curDirEntryInPage + 1 >= CM_DIR_EPP)) {
 210             curPage++;
 211             curDirEntryInPage = 0;
 212             curChunk = 1;
 213         }
 214         curChunk += sizeOfCurEntry;
 215         curDirEntry++;
 216         curDirEntryInPage++;
 217     }
 218
 219     dirSize = (curPage+1) *  CM_DIR_PAGESIZE;
 220     cm_FakeRootDir = malloc(dirSize);
 221     cm_fakeDirSize = dirSize;
 222
 223     // yj: when we get here, we've figured out how much memory we need and
 224     // allocated the appropriate space for it. we now prceed to fill
 225     // it up with entries.
 226     curPage = 0;
 227     curDirEntry = 0;
 228     curDirEntryInPage = 0;
 229     curChunk = 0;
 230
 231     // fields in the directory entry that are unused.
 232     fakeEntry.flag = 1;
 233     fakeEntry.length = 0;
 234     fakeEntry.next = 0;
 235     fakeEntry.fid.unique = htonl(1);
 236
 237     // the first page is special, it uses fakeDirHeader instead of fakePageHeader
 238     // we fill up the page with dirEntries that belong there and we make changes
 239     // to the fakeDirHeader.header.freeBitmap along the way. Then when we're done
 240     // filling up the dirEntries in this page, we copy the fakeDirHeader into
 241     // the top of the page.
 242
 243     // init the freeBitmap array
 244     for (i=0; i<8; i++)
 245         fakeDirHeader.header.freeBitmap[i]=0;
 246
 247     fakeDirHeader.header.freeBitmap[0] = 0xff;
 248     fakeDirHeader.header.freeBitmap[1] = 0x7f;
 249
 250
 251     // we start counting at 13 because the 0th to 12th chunks are used for header
 252     curChunk = 13;
 253
 254     // stick the first 2 entries "." and ".." in
 255     fakeEntry.fid.unique = htonl(1);
 256     fakeEntry.fid.vnode = htonl(1);
 257     strcpy(fakeEntry.name, ".");
 258     currentPos = cm_FakeRootDir + curPage * CM_DIR_PAGESIZE + curChunk * CM_DIR_CHUNKSIZE;
 259     memcpy(currentPos, &fakeEntry, CM_DIR_CHUNKSIZE);
 260     curChunk++; curDirEntryInPage++;
 261     strcpy(fakeEntry.name, "..");
 262     currentPos = cm_FakeRootDir + curPage * CM_DIR_PAGESIZE + curChunk * CM_DIR_CHUNKSIZE;
 263     memcpy(currentPos, &fakeEntry, CM_DIR_CHUNKSIZE);
 264     curChunk++; curDirEntryInPage++;
 265
 266     // keep putting stuff into page 0 if
 267     // 1. we're not done with all entries
 268     // 2. we have less than CM_DIR_EPP entries in page 0
 269     // 3. we're not out of chunks in page 0
 270
 271     while( (curDirEntry<cm_noLocalMountPoints) &&
 272            (curDirEntryInPage < CM_DIR_EPP) &&
 273            (curChunk + cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0) <= CPP))
 274     {
 275
 276         noChunks = cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0);
 277         fakeEntry.fid.vnode = htonl(curDirEntry + 2);
 278         currentPos = cm_FakeRootDir + curPage * CM_DIR_PAGESIZE + curChunk * CM_DIR_CHUNKSIZE;
 279
 280         memcpy(currentPos, &fakeEntry, CM_DIR_CHUNKSIZE);
 281         strcpy(currentPos + 12, (cm_localMountPoints+curDirEntry)->namep);
 282         curDirEntry++;
 283         curDirEntryInPage++;
 284         for (i=0; i<noChunks; i++) {
 285             t1 = (curChunk + i) / 8;
 286             t2 = curChunk + i - (t1*8);
 287             fakeDirHeader.header.freeBitmap[t1] |= (1 << t2);
 288         }
 289         curChunk+=noChunks;
 290     }
 291
 292     // when we get here, we're done with filling in the entries for page 0
 293     // copy in the header info
 294
 295     memcpy(cm_FakeRootDir, &fakeDirHeader, 13 * CM_DIR_CHUNKSIZE);
 296
 297     curPage++;
 298
 299     // ok, page 0's done. Move on to the next page.
 300     while (curDirEntry<cm_noLocalMountPoints) {
 301         // setup a new page
 302         curChunk = 1;                   // the zeroth chunk is reserved for page header
 303         curDirEntryInPage = 0;
 304         for (i=0; i<8; i++) {
 305             fakePageHeader.freeBitmap[i]=0;
 306         }
 307         fakePageHeader.freeCount = 0;
 308         fakePageHeader.pgcount = 0;
 309         fakePageHeader.tag = htons(1234);
 310
 311         // while we're on the same page...
 312         while ( (curDirEntry<cm_noLocalMountPoints) &&
 313                 (curDirEntryInPage < CM_DIR_EPP) &&
 314                 (curChunk + cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0) <= CPP))
 315         {
 316             // add an entry to this page
 317
 318             noChunks = cm_NameEntries((cm_localMountPoints+curDirEntry)->namep, 0);
 319             fakeEntry.fid.vnode=htonl(curDirEntry+2);
 320             currentPos = cm_FakeRootDir + curPage * CM_DIR_PAGESIZE + curChunk * CM_DIR_CHUNKSIZE;
 321             memcpy(currentPos, &fakeEntry, CM_DIR_CHUNKSIZE);
 322             strcpy(currentPos + 12, (cm_localMountPoints+curDirEntry)->namep);
 323             curDirEntry++;
 324             curDirEntryInPage++;
 325             for (i=0; i<noChunks; i++) {
 326                 t1 = (curChunk + i) / 8;
 327                 t2 = curChunk + i - (t1*8);
 328                 fakePageHeader.freeBitmap[t1] |= (1 << t2);
 329             }
 330             curChunk+=noChunks;
 331         }
 332         memcpy(cm_FakeRootDir + curPage * CM_DIR_PAGESIZE, &fakePageHeader, sizeof(fakePageHeader));
 333
 334         curPage++;
 335     }
 336
 337     // we know the fakeDir is setup properly, so we claim that we have callback
 338     osi_Log0(afsd_logp,"cm_InitFakeRootDir fakeDirCallback=1");
 339     cm_fakeDirCallback=1;
 340
 341     // when we get here, we've set up everything! done!
 342 }
 343
 344 int cm_FakeRootFid(cm_fid_t *fidp)
 345 {
 346     fidp->cell = AFS_FAKE_ROOT_CELL_ID;            /* root cell */
 347     fidp->volume = AFS_FAKE_ROOT_VOL_ID;   /* root.afs ? */
 348     fidp->vnode = 0x1;
 349     fidp->unique = 0x1;
 350     return 0;
 351 }
 352
 353 /* called directly from ioctl */
 354 /* called while not holding freelance lock */
 355 int cm_noteLocalMountPointChange(void) {
 356     lock_ObtainMutex(&cm_Freelance_Lock);
 357     cm_data.fakeDirVersion++;
 358     cm_localMountPointChangeFlag = 1;
 359     lock_ReleaseMutex(&cm_Freelance_Lock);
 360     return 1;
 361 }
 362
 363 int cm_getLocalMountPointChange() {
 364     return cm_localMountPointChangeFlag;
 365 }
 366
 367 int cm_clearLocalMountPointChange() {
 368     cm_localMountPointChangeFlag = 0;
 369     return 0;
 370 }
 371
 372 int cm_reInitLocalMountPoints() {
 373     cm_fid_t aFid;
 374     int i, hash;
 375     cm_scache_t *scp, **lscpp, *tscp;
 376
 377     osi_Log0(afsd_logp,"----- freelance reinitialization starts ----- ");
 378
 379     // first we invalidate all the SCPs that were created
 380     // for the local mount points
 381
 382     osi_Log0(afsd_logp,"Invalidating local mount point scp...  ");
 383
 384     aFid.cell = AFS_FAKE_ROOT_CELL_ID;
 385     aFid.volume=AFS_FAKE_ROOT_VOL_ID;
 386     aFid.unique=0x1;
 387     aFid.vnode=0x2;
 388
 389     lock_ObtainWrite(&cm_scacheLock);
 390     lock_ObtainMutex(&cm_Freelance_Lock);  /* always scache then freelance lock */
 391     for (i=0; i<cm_noLocalMountPoints; i++) {
 392         hash = CM_SCACHE_HASH(&aFid);
 393         for (scp=cm_data.hashTablep[hash]; scp; scp=scp->nextp) {
 394             if (scp->fid.volume == aFid.volume &&
 395                  scp->fid.vnode == aFid.vnode &&
 396                  scp->fid.unique == aFid.unique
 397                  ) {
 398
 399                 // mark the scp to be reused
 400                 cm_HoldSCacheNoLock(scp);
 401                 lock_ReleaseWrite(&cm_scacheLock);
 402                 lock_ObtainMutex(&scp->mx);
 403                 cm_DiscardSCache(scp);
 404                 lock_ReleaseMutex(&scp->mx);
 405                 cm_CallbackNotifyChange(scp);
 406                 lock_ObtainWrite(&cm_scacheLock);
 407                 cm_ReleaseSCacheNoLock(scp);
 408
 409                 // take the scp out of the hash
 410                 for (lscpp = &cm_data.hashTablep[hash], tscp = cm_data.hashTablep[hash];
 411                      tscp;
 412                      lscpp = &tscp->nextp, tscp = tscp->nextp) {
 413                     if (tscp == scp) {
 414                         *lscpp = scp->nextp;
 415                         lock_ObtainMutex(&scp->mx);
 416                         scp->flags &= ~CM_SCACHEFLAG_INHASH;
 417                         lock_ReleaseMutex(&scp->mx);
 418                         break;
 419                     }
 420                 }
 421             }
 422         }
 423         aFid.vnode = aFid.vnode + 1;
 424     }
 425     lock_ReleaseWrite(&cm_scacheLock);
 426     osi_Log0(afsd_logp,"\tall old scp cleared!");
 427
 428     // we must free the memory that was allocated in the prev
 429     // cm_InitLocalMountPoints call
 430     osi_Log0(afsd_logp,"Removing old localmountpoints...  ");
 431     free(cm_localMountPoints);
 432     osi_Log0(afsd_logp,"\tall old localmountpoints cleared!");
 433
 434     // now re-init the localmountpoints
 435     osi_Log0(afsd_logp,"Creating new localmountpoints...  ");
 436     cm_InitLocalMountPoints();
 437     osi_Log0(afsd_logp,"\tcreated new set of localmountpoints!");
 438
 439     // now we have to free the memory allocated in cm_initfakerootdir
 440     osi_Log0(afsd_logp,"Removing old fakedir...  ");
 441     free(cm_FakeRootDir);
 442     osi_Log0(afsd_logp,"\t\told fakedir removed!");
 443
 444     // then we re-create that dir
 445     osi_Log0(afsd_logp,"Creating new fakedir...  ");
 446     cm_InitFakeRootDir();
 447     osi_Log0(afsd_logp,"\t\tcreated new fakedir!");
 448
 449     lock_ReleaseMutex(&cm_Freelance_Lock);
 450
 451     osi_Log0(afsd_logp,"----- freelance reinit complete -----");
 452     return 0;
 453 }
 454
 455
 456 // yj: open up the ini file and read all the local mount
 457 // points that are stored there. Part of the initialization
 458 // process for the freelance client.
 459 /* to be called while holding freelance lock unless during init. */
 460 long cm_InitLocalMountPoints() {
 461     FILE *fp;
 462     int i;
 463     char line[512];
 464     char*t, *t2;
 465     cm_localMountPoint_t* aLocalMountPoint;
 466     char hdir[120];
 467     long code;
 468     char rootCellName[256];
 469     HKEY hkFreelance = 0, hkFreelanceSymlinks = 0;
 470     DWORD dwType, dwSize;
 471     DWORD dwMountPoints = 0;
 472     DWORD dwIndex;
 473     DWORD dwSymlinks = 0;
 474     FILETIME ftLastWriteTime;
 475
 476     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 477                       AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance",
 478                       0,
 479                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
 480                       &hkFreelance) == ERROR_SUCCESS) {
 481
 482         RegQueryInfoKey( hkFreelance,
 483                          NULL,  /* lpClass */
 484                          NULL,  /* lpcClass */
 485                          NULL,  /* lpReserved */
 486                          NULL,  /* lpcSubKeys */
 487                          NULL,  /* lpcMaxSubKeyLen */
 488                          NULL,  /* lpcMaxClassLen */
 489                          &dwMountPoints, /* lpcValues */
 490                          NULL,  /* lpcMaxValueNameLen */
 491                          NULL,  /* lpcMaxValueLen */
 492                          NULL,  /* lpcbSecurityDescriptor */
 493                          &ftLastWriteTime /* lpftLastWriteTime */
 494                          );
 495
 496         smb_UnixTimeFromLargeSearchTime(&FakeFreelanceModTime, &ftLastWriteTime);
 497
 498         if ( dwMountPoints == 0 ) {
 499             rootCellName[0] = '.';
 500             code = cm_GetRootCellName(&rootCellName[1]);
 501             if (code == 0) {
 502                 cm_FreelanceAddMount(&rootCellName[1], &rootCellName[1], "root.cell.", 0, NULL);
 503                 cm_FreelanceAddMount(rootCellName, &rootCellName[1], "root.cell.", 1, NULL);
 504                 dwMountPoints = 2;
 505             }
 506         }
 507
 508         if (RegCreateKeyEx( HKEY_LOCAL_MACHINE,
 509                           AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance\\Symlinks",
 510                           0,
 511                           NULL,
 512                           REG_OPTION_NON_VOLATILE,
 513                           KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
 514                           NULL,
 515                           &hkFreelanceSymlinks,
 516                           NULL) == ERROR_SUCCESS) {
 517
 518             RegQueryInfoKey( hkFreelanceSymlinks,
 519                              NULL,  /* lpClass */
 520                              NULL,  /* lpcClass */
 521                              NULL,  /* lpReserved */
 522                              NULL,  /* lpcSubKeys */
 523                              NULL,  /* lpcMaxSubKeyLen */
 524                              NULL,  /* lpcMaxClassLen */
 525                              &dwSymlinks, /* lpcValues */
 526                              NULL,  /* lpcMaxValueNameLen */
 527                              NULL,  /* lpcMaxValueLen */
 528                              NULL,  /* lpcbSecurityDescriptor */
 529                              NULL   /* lpftLastWriteTime */
 530                              );
 531         }
 532
 533         // get the number of entries there are from the first line
 534         // that we read
 535         cm_noLocalMountPoints = dwMountPoints + dwSymlinks;
 536
 537         // create space to store the local mount points
 538         cm_localMountPoints = malloc(sizeof(cm_localMountPoint_t) * cm_noLocalMountPoints);
 539         aLocalMountPoint = cm_localMountPoints;
 540
 541         // now we read n lines and parse them into local mount points
 542         // where n is the number of local mount points there are, as
 543         // determined above.
 544         // Each line in the ini file represents 1 local mount point and
 545         // is in the format xxx#yyy:zzz, where xxx is the directory
 546         // entry name, yyy is the cell name and zzz is the volume name.
 547         // #yyy:zzz together make up the mount point.
 548         for ( dwIndex = 0 ; dwIndex < dwMountPoints; dwIndex++ ) {
 549             TCHAR szValueName[16];
 550             DWORD dwValueSize = 16;
 551             dwSize = sizeof(line);
 552             if (RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 553                           &dwType, line, &dwSize))
 554             {
 555                 afsi_log("RegEnumValue(hkFreelance) failed");
 556                 cm_noLocalMountPoints--;
 557                 continue;
 558             }
 559
 560             afsi_log("Mountpoint[%d] = %s",dwIndex, line);
 561
 562             /* find the trailing dot; null terminate after it */
 563             t2 = strrchr(line, '.');
 564             if (t2)
 565                 *(t2+1) = '\0';
 566
 567             for ( t=line;*t;t++ ) {
 568                 if ( !isprint(*t) ) {
 569                     afsi_log("error occurred while parsing mountpoint entry [%d]: non-printable character", dwIndex);
 570                     fprintf(stderr, "error occurred while parsing mountpoint entry [%d]: non-printable character", dwIndex);
 571                     cm_noLocalMountPoints--;
 572                     continue;
 573                 }
 574             }
 575
 576             // line is not empty, so let's parse it
 577             t = strchr(line, '#');
 578             if (!t)
 579                 t = strchr(line, '%');
 580             // make sure that there is a '#' or '%' separator in the line
 581             if (!t) {
 582                 afsi_log("error occurred while parsing mountpoint entry [%d]: no # or %% separator", dwIndex);
 583                 fprintf(stderr, "error occurred while parsing mountpoint entry [%d]: no # or %% separator", dwIndex);
 584                 cm_noLocalMountPoints--;
 585                 continue;
 586             }
 587
 588             aLocalMountPoint->fileType = CM_SCACHETYPE_MOUNTPOINT;
 589             aLocalMountPoint->namep=malloc(t-line+1);
 590             strncpy(aLocalMountPoint->namep, line, t-line);
 591             aLocalMountPoint->namep[t-line] = '\0';
 592
 593             /* copy the mount point string */
 594             aLocalMountPoint->mountPointStringp=malloc(strlen(t));
 595             strncpy(aLocalMountPoint->mountPointStringp, t, strlen(t)-1);
 596             aLocalMountPoint->mountPointStringp[strlen(t)-1] = '\0';
 597
 598             osi_Log2(afsd_logp,"found mount point: name %s, string %s",
 599                       osi_LogSaveString(afsd_logp,aLocalMountPoint->namep),
 600                       osi_LogSaveString(afsd_logp,aLocalMountPoint->mountPointStringp));
 601
 602             aLocalMountPoint++;
 603         }
 604
 605         for ( dwIndex = 0 ; dwIndex < dwSymlinks; dwIndex++ ) {
 606             TCHAR szValueName[16];
 607             DWORD dwValueSize = 16;
 608             dwSize = sizeof(line);
 609             if (RegEnumValue( hkFreelanceSymlinks, dwIndex, szValueName, &dwValueSize, NULL,
 610                               &dwType, line, &dwSize))
 611             {
 612                 afsi_log("RegEnumValue(hkFreelanceSymlinks) failed");
 613                 cm_noLocalMountPoints--;
 614                 continue;
 615             }
 616
 617             afsi_log("Symlink[%d] = %s",dwIndex, line);
 618
 619             /* find the trailing dot; null terminate after it */
 620             t2 = strrchr(line, '.');
 621             if (t2)
 622                 *(t2+1) = '\0';
 623
 624             for ( t=line;*t;t++ ) {
 625                 if ( !isprint(*t) ) {
 626                     afsi_log("error occurred while parsing symlink entry [%d]: non-printable character", dwIndex);
 627                     fprintf(stderr, "error occurred while parsing symlink entry [%d]: non-printable character", dwIndex);
 628                     cm_noLocalMountPoints--;
 629                     continue;
 630                 }
 631             }
 632
 633             // line is not empty, so let's parse it
 634             t = strchr(line, ':');
 635
 636             // make sure that there is a ':' separator in the line
 637             if (!t) {
 638                 afsi_log("error occurred while parsing symlink entry [%d]: no ':' separator", dwIndex);
 639                 fprintf(stderr, "error occurred while parsing symlink entry [%d]: no ':' separator", dwIndex);
 640                 cm_noLocalMountPoints--;
 641                 continue;
 642             }
 643
 644             aLocalMountPoint->fileType = CM_SCACHETYPE_SYMLINK;
 645             aLocalMountPoint->namep=malloc(t-line+1);
 646             strncpy(aLocalMountPoint->namep, line, t-line);
 647             aLocalMountPoint->namep[t-line] = '\0';
 648
 649             /* copy the symlink string */
 650             aLocalMountPoint->mountPointStringp=malloc(strlen(t)-1);
 651             strncpy(aLocalMountPoint->mountPointStringp, t+1, strlen(t)-2);
 652             aLocalMountPoint->mountPointStringp[strlen(t)-2] = '\0';
 653
 654             osi_Log2(afsd_logp,"found symlink: name %s, string %s",
 655                       osi_LogSaveString(afsd_logp,aLocalMountPoint->namep),
 656                       osi_LogSaveString(afsd_logp,aLocalMountPoint->mountPointStringp));
 657
 658             aLocalMountPoint++;
 659         }
 660
 661         if ( hkFreelanceSymlinks )
 662             RegCloseKey( hkFreelanceSymlinks );
 663         RegCloseKey(hkFreelance);
 664         return 0;
 665     }
 666
 667     /* What follows is the old code to read freelance mount points
 668      * out of a text file modified to copy the data into the registry
 669      */
 670     cm_GetConfigDir(hdir);
 671     strcat(hdir, AFS_FREELANCE_INI);
 672     // open the ini file for reading
 673     fp = fopen(hdir, "r");
 674     if (!fp) {
 675         /* look in the Windows directory where we used to store the file */
 676         GetWindowsDirectory(hdir, sizeof(hdir));
 677         strcat(hdir,"\\");
 678         strcat(hdir, AFS_FREELANCE_INI);
 679         fp = fopen(hdir, "r");
 680     }
 681
 682     RegCreateKeyEx( HKEY_LOCAL_MACHINE,
 683                     AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance",
 684                     0,
 685                     NULL,
 686                     REG_OPTION_NON_VOLATILE,
 687                     KEY_READ|KEY_WRITE,
 688                     NULL,
 689                     &hkFreelance,
 690                     NULL);
 691     dwIndex = 0;
 692
 693     if (!fp) {
 694         RegCloseKey(hkFreelance);
 695         rootCellName[0] = '.';
 696         code = cm_GetRootCellName(&rootCellName[1]);
 697         if (code == 0) {
 698             cm_FreelanceAddMount(&rootCellName[1], &rootCellName[1], "root.cell.", 0, NULL);
 699             cm_FreelanceAddMount(rootCellName, &rootCellName[1], "root.cell.", 1, NULL);
 700         }
 701         return 0;
 702     }
 703
 704     // we successfully opened the file
 705     osi_Log0(afsd_logp,"opened afs_freelance.ini");
 706
 707     // now we read the first line to see how many entries
 708     // there are
 709     fgets(line, sizeof(line), fp);
 710
 711     // if the line is empty at any point when we're reading
 712     // we're screwed. report error and return.
 713     if (*line==0) {
 714         afsi_log("error occurred while reading afs_freelance.ini");
 715         fprintf(stderr, "error occurred while reading afs_freelance.ini");
 716         return -1;
 717     }
 718
 719     // get the number of entries there are from the first line
 720     // that we read
 721     cm_noLocalMountPoints = atoi(line);
 722
 723     if (cm_noLocalMountPoints > 0) {
 724         // create space to store the local mount points
 725         cm_localMountPoints = malloc(sizeof(cm_localMountPoint_t) * cm_noLocalMountPoints);
 726         aLocalMountPoint = cm_localMountPoints;
 727     }
 728
 729     // now we read n lines and parse them into local mount points
 730     // where n is the number of local mount points there are, as
 731     // determined above.
 732     // Each line in the ini file represents 1 local mount point and
 733     // is in the format xxx#yyy:zzz, where xxx is the directory
 734     // entry name, yyy is the cell name and zzz is the volume name.
 735     // #yyy:zzz together make up the mount point.
 736     for (i=0; i<cm_noLocalMountPoints; i++) {
 737         fgets(line, sizeof(line), fp);
 738         // check that the line is not empty
 739         if (line[0]==0) {
 740             afsi_log("error occurred while parsing entry in %s: empty line in line %d", AFS_FREELANCE_INI, i);
 741             fprintf(stderr, "error occurred while parsing entry in afs_freelance.ini: empty line in line %d", i);
 742             return -1;
 743         }
 744
 745         /* find the trailing dot; null terminate after it */
 746         t2 = strrchr(line, '.');
 747         if (t2)
 748             *(t2+1) = '\0';
 749
 750         if ( hkFreelance ) {
 751             char szIndex[16];
 752             /* we are migrating to the registry */
 753             sprintf(szIndex,"%d",dwIndex++);
 754             dwType = REG_SZ;
 755             dwSize = (DWORD)strlen(line) + 1;
 756             RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
 757         }
 758
 759         // line is not empty, so let's parse it
 760         t = strchr(line, '#');
 761         if (!t)
 762             t = strchr(line, '%');
 763         // make sure that there is a '#' or '%' separator in the line
 764         if (!t) {
 765             afsi_log("error occurred while parsing entry in %s: no # or %% separator in line %d", AFS_FREELANCE_INI, i);
 766             fprintf(stderr, "error occurred while parsing entry in afs_freelance.ini: no # or %% separator in line %d", i);
 767             return -1;
 768         }
 769         aLocalMountPoint->namep=malloc(t-line+1);
 770         memcpy(aLocalMountPoint->namep, line, t-line);
 771         *(aLocalMountPoint->namep + (t-line)) = 0;
 772
 773         aLocalMountPoint->mountPointStringp=malloc(strlen(line) - (t-line) + 1);
 774         memcpy(aLocalMountPoint->mountPointStringp, t, strlen(line)-(t-line)-1);
 775         *(aLocalMountPoint->mountPointStringp + (strlen(line)-(t-line)-1)) = 0;
 776
 777         osi_Log2(afsd_logp,"found mount point: name %s, string %s",
 778                   aLocalMountPoint->namep,
 779                   aLocalMountPoint->mountPointStringp);
 780
 781         aLocalMountPoint++;
 782     }
 783     fclose(fp);
 784     if ( hkFreelance ) {
 785         RegCloseKey(hkFreelance);
 786         DeleteFile(hdir);
 787     }
 788     return 0;
 789 }
 790
 791 int cm_getNoLocalMountPoints() {
 792     return cm_noLocalMountPoints;
 793 }
 794
 795 long cm_FreelanceMountPointExists(char * filename)
 796 {
 797     char* cp;
 798     char line[512];
 799     char shortname[200];
 800     int found = 0;
 801     HKEY hkFreelance = 0;
 802     DWORD dwType, dwSize;
 803     DWORD dwMountPoints;
 804     DWORD dwIndex;
 805
 806     lock_ObtainMutex(&cm_Freelance_Lock);
 807
 808     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 809                       AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance",
 810                       0,
 811                       KEY_READ|KEY_QUERY_VALUE,
 812                       &hkFreelance) == ERROR_SUCCESS)
 813     {
 814         RegQueryInfoKey( hkFreelance,
 815                          NULL,  /* lpClass */
 816                          NULL,  /* lpcClass */
 817                          NULL,  /* lpReserved */
 818                          NULL,  /* lpcSubKeys */
 819                          NULL,  /* lpcMaxSubKeyLen */
 820                          NULL,  /* lpcMaxClassLen */
 821                          &dwMountPoints, /* lpcValues */
 822                          NULL,  /* lpcMaxValueNameLen */
 823                          NULL,  /* lpcMaxValueLen */
 824                          NULL,  /* lpcbSecurityDescriptor */
 825                          NULL   /* lpftLastWriteTime */
 826                          );
 827
 828         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
 829             TCHAR szValueName[16];
 830             DWORD dwValueSize = 16;
 831             dwSize = sizeof(line);
 832             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 833                           &dwType, line, &dwSize);
 834
 835             cp=strchr(line, '#');
 836             if (!cp)
 837                 cp=strchr(line, '%');
 838             memcpy(shortname, line, cp-line);
 839             shortname[cp-line]=0;
 840
 841             if (!strcmp(shortname, filename)) {
 842                 found = 1;
 843                 break;
 844             }
 845         }
 846         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
 847             TCHAR szValueName[16];
 848             DWORD dwValueSize = 16;
 849             dwSize = sizeof(line);
 850             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 851                           &dwType, line, &dwSize);
 852
 853             cp=strchr(line, '#');
 854             if (!cp)
 855                 cp=strchr(line, '%');
 856             memcpy(shortname, line, cp-line);
 857             shortname[cp-line]=0;
 858
 859             if (!stricmp(shortname, filename)) {
 860                 found = 1;
 861                 break;
 862             }
 863         }
 864         RegCloseKey(hkFreelance);
 865     }
 866
 867     lock_ReleaseMutex(&cm_Freelance_Lock);
 868
 869     return found;
 870 }
 871
 872 long cm_FreelanceSymlinkExists(char * filename)
 873 {
 874     char* cp;
 875     char line[512];
 876     char shortname[200];
 877     int found = 0;
 878     HKEY hkFreelance = 0;
 879     DWORD dwType, dwSize;
 880     DWORD dwSymlinks;
 881     DWORD dwIndex;
 882
 883     lock_ObtainMutex(&cm_Freelance_Lock);
 884
 885     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 886                       AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance\\Symlinks",
 887                       0,
 888                       KEY_READ|KEY_QUERY_VALUE,
 889                       &hkFreelance) == ERROR_SUCCESS)
 890     {
 891         RegQueryInfoKey( hkFreelance,
 892                          NULL,  /* lpClass */
 893                          NULL,  /* lpcClass */
 894                          NULL,  /* lpReserved */
 895                          NULL,  /* lpcSubKeys */
 896                          NULL,  /* lpcMaxSubKeyLen */
 897                          NULL,  /* lpcMaxClassLen */
 898                          &dwSymlinks, /* lpcValues */
 899                          NULL,  /* lpcMaxValueNameLen */
 900                          NULL,  /* lpcMaxValueLen */
 901                          NULL,  /* lpcbSecurityDescriptor */
 902                          NULL   /* lpftLastWriteTime */
 903                          );
 904
 905         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
 906             TCHAR szValueName[16];
 907             DWORD dwValueSize = 16;
 908             dwSize = sizeof(line);
 909             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 910                           &dwType, line, &dwSize);
 911
 912             cp=strchr(line, ':');
 913             memcpy(shortname, line, cp-line);
 914             shortname[cp-line]=0;
 915
 916             if (!strcmp(shortname, filename)) {
 917                 found = 1;
 918                 break;
 919             }
 920         }
 921         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
 922             TCHAR szValueName[16];
 923             DWORD dwValueSize = 16;
 924             dwSize = sizeof(line);
 925             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
 926                           &dwType, line, &dwSize);
 927
 928             cp=strchr(line, ':');
 929             memcpy(shortname, line, cp-line);
 930             shortname[cp-line]=0;
 931
 932             if (!stricmp(shortname, filename)) {
 933                 found = 1;
 934                 break;
 935             }
 936         }
 937         RegCloseKey(hkFreelance);
 938     }
 939
 940     lock_ReleaseMutex(&cm_Freelance_Lock);
 941
 942     return found;
 943 }
 944
 945 long cm_FreelanceAddMount(char *filename, char *cellname, char *volume, int rw, cm_fid_t *fidp)
 946 {
 947     FILE *fp;
 948     char hfile[120];
 949     char line[512];
 950     char fullname[200];
 951     int n;
 952     int alias = 0;
 953     HKEY hkFreelance = 0;
 954     DWORD dwType, dwSize;
 955     DWORD dwMountPoints;
 956     DWORD dwIndex;
 957
 958     /* before adding, verify the cell name; if it is not a valid cell,
 959        don't add the mount point.
 960        allow partial matches as a means of poor man's alias. */
 961     /* major performance issue? */
 962     osi_Log4(afsd_logp,"Freelance Add Mount request: filename=%s cellname=%s volume=%s %s",
 963               osi_LogSaveString(afsd_logp,filename),
 964               osi_LogSaveString(afsd_logp,cellname),
 965               osi_LogSaveString(afsd_logp,volume),
 966               rw ? "rw" : "ro");
 967
 968     if ( filename[0] == '\0' || cellname[0] == '\0' || volume[0] == '\0' )
 969         return -1;
 970
 971     if (cellname[0] == '.') {
 972         if (!cm_GetCell_Gen(&cellname[1], fullname, CM_FLAG_CREATE))
 973             return -1;
 974     } else {
 975         if (!cm_GetCell_Gen(cellname, fullname, CM_FLAG_CREATE))
 976             return -1;
 977     }
 978
 979     if ( cm_FreelanceMountPointExists(filename) ||
 980          cm_FreelanceSymlinkExists(filename) )
 981         return -1;
 982
 983     osi_Log1(afsd_logp,"Freelance Adding Mount for Cell: %s",
 984               osi_LogSaveString(afsd_logp,cellname));
 985
 986     lock_ObtainMutex(&cm_Freelance_Lock);
 987
 988     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
 989                       AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance",
 990                       0,
 991                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
 992                       &hkFreelance) == ERROR_SUCCESS) {
 993
 994         RegQueryInfoKey( hkFreelance,
 995                          NULL,  /* lpClass */
 996                          NULL,  /* lpcClass */
 997                          NULL,  /* lpReserved */
 998                          NULL,  /* lpcSubKeys */
 999                          NULL,  /* lpcMaxSubKeyLen */
1000                          NULL,  /* lpcMaxClassLen */
1001                          &dwMountPoints, /* lpcValues */
1002                          NULL,  /* lpcMaxValueNameLen */
1003                          NULL,  /* lpcMaxValueLen */
1004                          NULL,  /* lpcbSecurityDescriptor */
1005                          NULL   /* lpftLastWriteTime */
1006                          );
1007
1008         if (rw)
1009             sprintf(line, "%s%%%s:%s", filename, fullname, volume);
1010         else
1011             sprintf(line, "%s#%s:%s", filename, fullname, volume);
1012
1013         /* If we are adding a new value, there must be an unused name
1014          * within the range 0 to dwMountPoints
1015          */
1016         for ( dwIndex = 0; dwIndex <= dwMountPoints; dwIndex++ ) {
1017             char szIndex[16];
1018             char szMount[1024];
1019
1020             dwSize = sizeof(szMount);
1021             sprintf(szIndex, "%d", dwIndex);
1022             if (RegQueryValueEx( hkFreelance, szIndex, 0, &dwType, szMount, &dwSize) != ERROR_SUCCESS) {
1023                 /* found an unused value */
1024                 dwType = REG_SZ;
1025                 dwSize = (DWORD)strlen(line) + 1;
1026                 RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
1027                 break;
1028             } else {
1029                 int len = (int)strlen(filename);
1030                 if ( dwType == REG_SZ && !strncmp(filename, szMount, len) &&
1031                      (szMount[len] == '%' || szMount[len] == '#')) {
1032                     /* Replace the existing value */
1033                     dwType = REG_SZ;
1034                     dwSize = (DWORD)strlen(line) + 1;
1035                     RegSetValueEx( hkFreelance, szIndex, 0, dwType, line, dwSize);
1036                     break;
1037                 }
1038             }
1039         }
1040         RegCloseKey(hkFreelance);
1041     } else
1042     {
1043         cm_GetConfigDir(hfile);
1044         strcat(hfile, AFS_FREELANCE_INI);
1045         fp = fopen(hfile, "r+");
1046         if (!fp)
1047             return CM_ERROR_INVAL;
1048         fgets(line, sizeof(line), fp);
1049         n = atoi(line);
1050         n++;
1051         fseek(fp, 0, SEEK_SET);
1052         fprintf(fp, "%d", n);
1053         fseek(fp, 0, SEEK_END);
1054         if (rw)
1055             fprintf(fp, "%s%%%s:%s\n", filename, fullname, volume);
1056         else
1057             fprintf(fp, "%s#%s:%s\n", filename, fullname, volume);
1058         fclose(fp);
1059     }
1060     lock_ReleaseMutex(&cm_Freelance_Lock);
1061
1062     /* cm_reInitLocalMountPoints(); */
1063     if (fidp) {
1064         fidp->unique = 1;
1065         fidp->vnode = cm_noLocalMountPoints + 1;   /* vnode value of last mt pt */
1066     }
1067     cm_noteLocalMountPointChange();
1068     return 0;
1069 }
1070
1071 long cm_FreelanceRemoveMount(char *toremove)
1072 {
1073     int i, n;
1074     char* cp;
1075     char line[512];
1076     char shortname[200];
1077     char hfile[120], hfile2[120];
1078     FILE *fp1, *fp2;
1079     int found=0;
1080     HKEY hkFreelance = 0;
1081     DWORD dwType, dwSize;
1082     DWORD dwMountPoints;
1083     DWORD dwIndex;
1084
1085     lock_ObtainMutex(&cm_Freelance_Lock);
1086
1087     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
1088                       AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance",
1089                       0,
1090                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1091                       &hkFreelance) == ERROR_SUCCESS) {
1092
1093         RegQueryInfoKey( hkFreelance,
1094                          NULL,  /* lpClass */
1095                          NULL,  /* lpcClass */
1096                          NULL,  /* lpReserved */
1097                          NULL,  /* lpcSubKeys */
1098                          NULL,  /* lpcMaxSubKeyLen */
1099                          NULL,  /* lpcMaxClassLen */
1100                          &dwMountPoints, /* lpcValues */
1101                          NULL,  /* lpcMaxValueNameLen */
1102                          NULL,  /* lpcMaxValueLen */
1103                          NULL,  /* lpcbSecurityDescriptor */
1104                          NULL   /* lpftLastWriteTime */
1105                          );
1106
1107         for ( dwIndex = 0; dwIndex < dwMountPoints; dwIndex++ ) {
1108             TCHAR szValueName[16];
1109             DWORD dwValueSize = 16;
1110             dwSize = sizeof(line);
1111             RegEnumValue( hkFreelance, dwIndex, szValueName, &dwValueSize, NULL,
1112                           &dwType, line, &dwSize);
1113
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)) {
1121                 RegDeleteValue( hkFreelance, szValueName );
1122                 break;
1123             }
1124         }
1125         RegCloseKey(hkFreelance);
1126     } else
1127     {
1128         cm_GetConfigDir(hfile);
1129         strcat(hfile, AFS_FREELANCE_INI);
1130         strcpy(hfile2, hfile);
1131         strcat(hfile2, "2");
1132         fp1=fopen(hfile, "r+");
1133         if (!fp1)
1134             return CM_ERROR_INVAL;
1135         fp2=fopen(hfile2, "w+");
1136         if (!fp2) {
1137             fclose(fp1);
1138             return CM_ERROR_INVAL;
1139         }
1140
1141         fgets(line, sizeof(line), fp1);
1142         n=atoi(line);
1143         fprintf(fp2, "%d\n", n-1);
1144
1145         for (i=0; i<n; i++) {
1146             fgets(line, sizeof(line), fp1);
1147             cp=strchr(line, '#');
1148             if (!cp)
1149                 cp=strchr(line, '%');
1150             memcpy(shortname, line, cp-line);
1151             shortname[cp-line]=0;
1152
1153             if (strcmp(shortname, toremove)==0) {
1154
1155             } else {
1156                 found = 1;
1157                 fputs(line, fp2);
1158             }
1159         }
1160
1161         fclose(fp1);
1162         fclose(fp2);
1163         if (!found)
1164             return CM_ERROR_NOSUCHFILE;
1165
1166         unlink(hfile);
1167         rename(hfile2, hfile);
1168     }
1169
1170     lock_ReleaseMutex(&cm_Freelance_Lock);
1171     cm_noteLocalMountPointChange();
1172     return 0;
1173 }
1174
1175 long cm_FreelanceAddSymlink(char *filename, char *destination, cm_fid_t *fidp)
1176 {
1177     char line[512];
1178     char fullname[200];
1179     int alias = 0;
1180     HKEY hkFreelanceSymlinks = 0;
1181     DWORD dwType, dwSize;
1182     DWORD dwSymlinks;
1183     DWORD dwIndex;
1184
1185     /* before adding, verify the filename.  If it is already in use, either as
1186      * as mount point or a cellname, do not permit the creation of the symlink.
1187      */
1188     osi_Log2(afsd_logp,"Freelance Add Symlink request: filename=%s destination=%s",
1189               osi_LogSaveString(afsd_logp,filename),
1190               osi_LogSaveString(afsd_logp,destination));
1191
1192     if ( filename[0] == '\0' || destination[0] == '\0' )
1193         return -1;
1194
1195     fullname[0] = '\0';
1196     if (filename[0] == '.') {
1197         cm_GetCell_Gen(&filename[1], fullname, CM_FLAG_CREATE);
1198         if (stricmp(&filename[1],fullname) == 0)
1199             return -1;
1200     } else {
1201         cm_GetCell_Gen(filename, fullname, CM_FLAG_CREATE);
1202         if (stricmp(filename,fullname) == 0)
1203             return -1;
1204     }
1205
1206     if ( cm_FreelanceMountPointExists(filename) ||
1207          cm_FreelanceSymlinkExists(filename) )
1208         return -1;
1209
1210     lock_ObtainMutex(&cm_Freelance_Lock);
1211
1212     if (RegCreateKeyEx( HKEY_LOCAL_MACHINE,
1213                         AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance\\Symlinks",
1214                         0,
1215                         NULL,
1216                         REG_OPTION_NON_VOLATILE,
1217                         KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1218                         NULL,
1219                         &hkFreelanceSymlinks,
1220                         NULL) == ERROR_SUCCESS) {
1221
1222         RegQueryInfoKey( hkFreelanceSymlinks,
1223                          NULL,  /* lpClass */
1224                          NULL,  /* lpcClass */
1225                          NULL,  /* lpReserved */
1226                          NULL,  /* lpcSubKeys */
1227                          NULL,  /* lpcMaxSubKeyLen */
1228                          NULL,  /* lpcMaxClassLen */
1229                          &dwSymlinks, /* lpcValues */
1230                          NULL,  /* lpcMaxValueNameLen */
1231                          NULL,  /* lpcMaxValueLen */
1232                          NULL,  /* lpcbSecurityDescriptor */
1233                          NULL   /* lpftLastWriteTime */
1234                          );
1235
1236         sprintf(line, "%s:%s.", filename, destination);
1237
1238         /* If we are adding a new value, there must be an unused name
1239          * within the range 0 to dwSymlinks
1240          */
1241         for ( dwIndex = 0; dwIndex <= dwSymlinks; dwIndex++ ) {
1242             char szIndex[16];
1243             char szLink[1024];
1244
1245             dwSize = sizeof(szLink);
1246             sprintf(szIndex, "%d", dwIndex);
1247             if (RegQueryValueEx( hkFreelanceSymlinks, szIndex, 0, &dwType, szLink, &dwSize) != ERROR_SUCCESS) {
1248                 /* found an unused value */
1249                 dwType = REG_SZ;
1250                 dwSize = (DWORD)strlen(line) + 1;
1251                 RegSetValueEx( hkFreelanceSymlinks, szIndex, 0, dwType, line, dwSize);
1252                 break;
1253             } else {
1254                 int len = (int)strlen(filename);
1255                 if ( dwType == REG_SZ && !strncmp(filename, szLink, len) && szLink[len] == ':') {
1256                     /* Replace the existing value */
1257                     dwType = REG_SZ;
1258                     dwSize = (DWORD)strlen(line) + 1;
1259                     RegSetValueEx( hkFreelanceSymlinks, szIndex, 0, dwType, line, dwSize);
1260                     break;
1261                 }
1262             }
1263         }
1264         RegCloseKey(hkFreelanceSymlinks);
1265     }
1266     lock_ReleaseMutex(&cm_Freelance_Lock);
1267
1268     /* cm_reInitLocalMountPoints(); */
1269     if (fidp) {
1270         fidp->unique = 1;
1271         fidp->vnode = cm_noLocalMountPoints + 1;   /* vnode value of last mt pt */
1272     }
1273     cm_noteLocalMountPointChange();
1274     return 0;
1275 }
1276
1277 long cm_FreelanceRemoveSymlink(char *toremove)
1278 {
1279     char* cp;
1280     char line[512];
1281     char shortname[200];
1282     int found=0;
1283     HKEY hkFreelanceSymlinks = 0;
1284     DWORD dwType, dwSize;
1285     DWORD dwSymlinks;
1286     DWORD dwIndex;
1287
1288     lock_ObtainMutex(&cm_Freelance_Lock);
1289
1290     if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
1291                       AFSREG_CLT_OPENAFS_SUBKEY "\\Freelance\\Symlinks",
1292                       0,
1293                       KEY_READ|KEY_WRITE|KEY_QUERY_VALUE,
1294                       &hkFreelanceSymlinks) == ERROR_SUCCESS) {
1295
1296         RegQueryInfoKey( hkFreelanceSymlinks,
1297                          NULL,  /* lpClass */
1298                          NULL,  /* lpcClass */
1299                          NULL,  /* lpReserved */
1300                          NULL,  /* lpcSubKeys */
1301                          NULL,  /* lpcMaxSubKeyLen */
1302                          NULL,  /* lpcMaxClassLen */
1303                          &dwSymlinks, /* lpcValues */
1304                          NULL,  /* lpcMaxValueNameLen */
1305                          NULL,  /* lpcMaxValueLen */
1306                          NULL,  /* lpcbSecurityDescriptor */
1307                          NULL   /* lpftLastWriteTime */
1308                          );
1309
1310         for ( dwIndex = 0; dwIndex < dwSymlinks; dwIndex++ ) {
1311             TCHAR szValueName[16];
1312             DWORD dwValueSize = 16;
1313             dwSize = sizeof(line);
1314             RegEnumValue( hkFreelanceSymlinks, dwIndex, szValueName, &dwValueSize, NULL,
1315                           &dwType, line, &dwSize);
1316
1317             cp=strchr(line, ':');
1318             memcpy(shortname, line, cp-line);
1319             shortname[cp-line]=0;
1320
1321             if (!strcmp(shortname, toremove)) {
1322                 RegDeleteValue( hkFreelanceSymlinks, szValueName );
1323                 break;
1324             }
1325         }
1326         RegCloseKey(hkFreelanceSymlinks);
1327     }
1328
1329     lock_ReleaseMutex(&cm_Freelance_Lock);
1330     cm_noteLocalMountPointChange();
1331     return 0;
1332 }
1333 #endif /* AFS_FREELANCE_CLIENT */