base/setup/usetup/filesup.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2002 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19 /* COPYRIGHT:       See COPYING in the top level directory
  20  * PROJECT:         ReactOS text-mode setup
  21  * FILE:            base/setup/usetup/filesup.c
  22  * PURPOSE:         File support functions
  23  * PROGRAMMER:      Eric Kohl
  24  *                  Casper S. Hornstrup (chorns@users.sourceforge.net)
  25  */
  26
  27 /* INCLUDES *****************************************************************/
  28
  29 #include "usetup.h"
  30
  31 #define NDEBUG
  32 #include <debug.h>
  33
  34 /* FUNCTIONS ****************************************************************/
  35
  36 static BOOLEAN HasCurrentCabinet = FALSE;
  37 static WCHAR CurrentCabinetName[MAX_PATH];
  38 static CAB_SEARCH Search;
  39
  40 static
  41 NTSTATUS
  42 SetupCreateSingleDirectory(
  43     PWCHAR DirectoryName)
  44 {
  45     OBJECT_ATTRIBUTES ObjectAttributes;
  46     IO_STATUS_BLOCK IoStatusBlock;
  47     UNICODE_STRING PathName;
  48     HANDLE DirectoryHandle;
  49     NTSTATUS Status;
  50
  51     if(!RtlCreateUnicodeString(&PathName, DirectoryName))
  52         return STATUS_NO_MEMORY;
  53
  54     if (PathName.Length > sizeof(WCHAR) &&
  55         PathName.Buffer[PathName.Length / sizeof(WCHAR) - 2] == L'\\' &&
  56         PathName.Buffer[PathName.Length / sizeof(WCHAR) - 1] == L'.')
  57     {
  58         PathName.Length -= sizeof(WCHAR);
  59         PathName.Buffer[PathName.Length / sizeof(WCHAR)] = 0;
  60     }
  61
  62     if (PathName.Length > sizeof(WCHAR) &&
  63         PathName.Buffer[PathName.Length / sizeof(WCHAR) - 1] == L'\\')
  64     {
  65         PathName.Length -= sizeof(WCHAR);
  66         PathName.Buffer[PathName.Length / sizeof(WCHAR)] = 0;
  67     }
  68
  69     InitializeObjectAttributes(&ObjectAttributes,
  70                                &PathName,
  71                                OBJ_CASE_INSENSITIVE | OBJ_INHERIT,
  72                                NULL,
  73                                NULL);
  74
  75     Status = NtCreateFile(&DirectoryHandle,
  76                           DIRECTORY_ALL_ACCESS,
  77                           &ObjectAttributes,
  78                           &IoStatusBlock,
  79                           NULL,
  80                           FILE_ATTRIBUTE_DIRECTORY,
  81                           FILE_SHARE_READ | FILE_SHARE_WRITE,
  82                           FILE_OPEN_IF,
  83                           FILE_DIRECTORY_FILE,
  84                           NULL,
  85                           0);
  86     if (NT_SUCCESS(Status))
  87     {
  88         NtClose(DirectoryHandle);
  89     }
  90
  91     RtlFreeUnicodeString(&PathName);
  92
  93     return Status;
  94 }
  95
  96
  97 static
  98 BOOLEAN
  99 DoesPathExist(
 100     PWSTR PathName)
 101 {
 102     OBJECT_ATTRIBUTES ObjectAttributes;
 103     IO_STATUS_BLOCK IoStatusBlock;
 104     UNICODE_STRING Name;
 105     HANDLE FileHandle;
 106     NTSTATUS Status;
 107
 108     RtlInitUnicodeString(&Name,
 109                          PathName);
 110
 111     InitializeObjectAttributes(&ObjectAttributes,
 112                                &Name,
 113                                OBJ_CASE_INSENSITIVE,
 114                                NULL,
 115                                NULL);
 116
 117     Status = NtOpenFile(&FileHandle,
 118                         GENERIC_READ | SYNCHRONIZE,
 119                         &ObjectAttributes,
 120                         &IoStatusBlock,
 121                         0,
 122                         FILE_SYNCHRONOUS_IO_NONALERT);
 123     if (!NT_SUCCESS(Status))
 124     {
 125         return FALSE;
 126     }
 127
 128     NtClose(FileHandle);
 129
 130     return TRUE;
 131 }
 132
 133
 134 BOOLEAN
 135 IsValidPath(
 136     PWCHAR InstallDir,
 137     ULONG Length)
 138 {
 139     UINT i;
 140
 141     // TODO: Add check for 8.3 too.
 142
 143     /* Check for whitespaces */
 144     for (i = 0; i < Length; i++)
 145     {
 146         if (isspace(InstallDir[i]))
 147             return FALSE;
 148     }
 149
 150     return TRUE;
 151 }
 152
 153
 154 NTSTATUS
 155 SetupCreateDirectory(
 156     PWCHAR PathName)
 157 {
 158     PWCHAR PathBuffer = NULL;
 159     PWCHAR Ptr, EndPtr;
 160     ULONG BackslashCount;
 161     ULONG Size;
 162     NTSTATUS Status = STATUS_SUCCESS;
 163
 164     Size = (wcslen(PathName) + 1) * sizeof(WCHAR);
 165     PathBuffer = RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, Size);
 166     if (PathBuffer == NULL)
 167         return STATUS_INSUFFICIENT_RESOURCES;
 168
 169     wcscpy(PathBuffer, PathName);
 170     EndPtr = PathBuffer + wcslen(PathName);
 171
 172     Ptr = PathBuffer;
 173
 174     /* Skip the '\Device\HarddiskX\PartitionY\ part */
 175     BackslashCount = 0;
 176     while (Ptr < EndPtr && BackslashCount < 4)
 177     {
 178         if (*Ptr == L'\\')
 179             BackslashCount++;
 180
 181         Ptr++;
 182     }
 183
 184     while (Ptr < EndPtr)
 185     {
 186         if (*Ptr == L'\\')
 187         {
 188             *Ptr = 0;
 189
 190             DPRINT("PathBuffer: %S\n", PathBuffer);
 191             if (!DoesPathExist(PathBuffer))
 192             {
 193                 DPRINT("Create: %S\n", PathBuffer);
 194                 Status = SetupCreateSingleDirectory(PathBuffer);
 195                 if (!NT_SUCCESS(Status))
 196                     goto done;
 197             }
 198
 199             *Ptr = L'\\';
 200         }
 201
 202         Ptr++;
 203     }
 204
 205     if (!DoesPathExist(PathBuffer))
 206     {
 207         DPRINT("Create: %S\n", PathBuffer);
 208         Status = SetupCreateSingleDirectory(PathBuffer);
 209         if (!NT_SUCCESS(Status))
 210             goto done;
 211     }
 212
 213 done:
 214     DPRINT("Done.\n");
 215     if (PathBuffer != NULL)
 216         RtlFreeHeap(RtlGetProcessHeap(), 0, PathBuffer);
 217
 218     return Status;
 219 }
 220
 221
 222 NTSTATUS
 223 SetupCopyFile(
 224     PWCHAR SourceFileName,
 225     PWCHAR DestinationFileName)
 226 {
 227     OBJECT_ATTRIBUTES ObjectAttributes;
 228     HANDLE FileHandleSource;
 229     HANDLE FileHandleDest;
 230     static IO_STATUS_BLOCK IoStatusBlock;
 231     FILE_STANDARD_INFORMATION FileStandard;
 232     FILE_BASIC_INFORMATION FileBasic;
 233     ULONG RegionSize;
 234     UNICODE_STRING FileName;
 235     NTSTATUS Status;
 236     PVOID SourceFileMap = 0;
 237     HANDLE SourceFileSection;
 238     SIZE_T SourceSectionSize = 0;
 239     LARGE_INTEGER ByteOffset;
 240
 241 #ifdef __REACTOS__
 242     RtlInitUnicodeString(&FileName,
 243                          SourceFileName);
 244
 245     InitializeObjectAttributes(&ObjectAttributes,
 246                                &FileName,
 247                                OBJ_CASE_INSENSITIVE,
 248                                NULL,
 249                                NULL);
 250
 251     Status = NtOpenFile(&FileHandleSource,
 252                         GENERIC_READ,
 253                         &ObjectAttributes,
 254                         &IoStatusBlock,
 255                         FILE_SHARE_READ,
 256                         FILE_SEQUENTIAL_ONLY);
 257     if (!NT_SUCCESS(Status))
 258     {
 259         DPRINT1("NtOpenFile failed: %x, %wZ\n", Status, &FileName);
 260         goto done;
 261     }
 262 #else
 263     FileHandleSource = CreateFileW(SourceFileName,
 264                                    GENERIC_READ,
 265                                    FILE_SHARE_READ,
 266                                    NULL,
 267                                    OPEN_EXISTING,
 268                                    0,
 269                                    NULL);
 270     if (FileHandleSource == INVALID_HANDLE_VALUE)
 271     {
 272         Status = STATUS_UNSUCCESSFUL;
 273         goto done;
 274     }
 275 #endif
 276
 277     Status = NtQueryInformationFile(FileHandleSource,
 278                                     &IoStatusBlock,
 279                                     &FileStandard,
 280                                     sizeof(FILE_STANDARD_INFORMATION),
 281                                     FileStandardInformation);
 282     if (!NT_SUCCESS(Status))
 283     {
 284         DPRINT1("NtQueryInformationFile failed: %x\n", Status);
 285         goto closesrc;
 286     }
 287
 288     Status = NtQueryInformationFile(FileHandleSource,
 289                                     &IoStatusBlock,&FileBasic,
 290                                     sizeof(FILE_BASIC_INFORMATION),
 291                                     FileBasicInformation);
 292     if (!NT_SUCCESS(Status))
 293     {
 294         DPRINT1("NtQueryInformationFile failed: %x\n", Status);
 295         goto closesrc;
 296     }
 297
 298     Status = NtCreateSection(&SourceFileSection,
 299                              SECTION_MAP_READ,
 300                              NULL,
 301                              NULL,
 302                              PAGE_READONLY,
 303                              SEC_COMMIT,
 304                              FileHandleSource);
 305     if (!NT_SUCCESS(Status))
 306     {
 307       DPRINT1("NtCreateSection failed: %x, %S\n", Status, SourceFileName);
 308       goto closesrc;
 309     }
 310
 311     Status = NtMapViewOfSection(SourceFileSection,
 312                                 NtCurrentProcess(),
 313                                 &SourceFileMap,
 314                                 0,
 315                                 0,
 316                                 NULL,
 317                                 &SourceSectionSize,
 318                                 ViewUnmap,
 319                                 0,
 320                                 PAGE_READONLY );
 321     if (!NT_SUCCESS(Status))
 322     {
 323         DPRINT1("NtMapViewOfSection failed: %x, %S\n", Status, SourceFileName);
 324         goto closesrcsec;
 325     }
 326
 327     RtlInitUnicodeString(&FileName,
 328                          DestinationFileName);
 329
 330     InitializeObjectAttributes(&ObjectAttributes,
 331                                &FileName,
 332                                OBJ_CASE_INSENSITIVE,
 333                                NULL,
 334                                NULL);
 335
 336     Status = NtCreateFile(&FileHandleDest,
 337                           GENERIC_WRITE | SYNCHRONIZE,
 338                           &ObjectAttributes,
 339                           &IoStatusBlock,
 340                           NULL,
 341                           FILE_ATTRIBUTE_NORMAL,
 342                           0,
 343                           FILE_OVERWRITE_IF,
 344                           FILE_NO_INTERMEDIATE_BUFFERING |
 345                           FILE_SEQUENTIAL_ONLY |
 346                           FILE_SYNCHRONOUS_IO_NONALERT,
 347                           NULL,
 348                           0);
 349     if (!NT_SUCCESS(Status))
 350     {
 351         DPRINT1("NtCreateFile failed: %x, %wZ\n", Status, &FileName);
 352         goto unmapsrcsec;
 353     }
 354
 355     RegionSize = (ULONG)PAGE_ROUND_UP(FileStandard.EndOfFile.u.LowPart);
 356     IoStatusBlock.Status = 0;
 357     ByteOffset.QuadPart = 0ULL;
 358     Status = NtWriteFile(FileHandleDest,
 359                          NULL,
 360                          NULL,
 361                          NULL,
 362                          &IoStatusBlock,
 363                          SourceFileMap,
 364                          RegionSize,
 365                          &ByteOffset,
 366                          NULL);
 367     if (!NT_SUCCESS(Status))
 368     {
 369         DPRINT1("NtWriteFile failed: %x:%x, iosb: %p src: %p, size: %x\n", Status, IoStatusBlock.Status, &IoStatusBlock, SourceFileMap, RegionSize);
 370         goto closedest;
 371     }
 372
 373     /* Copy file date/time from source file */
 374     Status = NtSetInformationFile(FileHandleDest,
 375                                   &IoStatusBlock,
 376                                   &FileBasic,
 377                                   sizeof(FILE_BASIC_INFORMATION),
 378                                   FileBasicInformation);
 379     if (!NT_SUCCESS(Status))
 380     {
 381         DPRINT1("NtSetInformationFile failed: %x\n", Status);
 382         goto closedest;
 383     }
 384
 385     /* shorten the file back to it's real size after completing the write */
 386     Status = NtSetInformationFile(FileHandleDest,
 387                                   &IoStatusBlock,
 388                                   &FileStandard.EndOfFile,
 389                                   sizeof(FILE_END_OF_FILE_INFORMATION),
 390                                   FileEndOfFileInformation);
 391     if (!NT_SUCCESS(Status))
 392     {
 393         DPRINT1("NtSetInformationFile failed: %x\n", Status);
 394     }
 395
 396 closedest:
 397     NtClose(FileHandleDest);
 398
 399 unmapsrcsec:
 400     NtUnmapViewOfSection(NtCurrentProcess(), SourceFileMap);
 401
 402 closesrcsec:
 403     NtClose(SourceFileSection);
 404
 405 closesrc:
 406     NtClose(FileHandleSource);
 407
 408 done:
 409     return Status;
 410 }
 411
 412 #ifdef __REACTOS__
 413 NTSTATUS
 414 SetupExtractFile(
 415     PWCHAR CabinetFileName,
 416     PWCHAR SourceFileName,
 417     PWCHAR DestinationPathName)
 418 {
 419     ULONG CabStatus;
 420
 421     DPRINT("SetupExtractFile(CabinetFileName %S, SourceFileName %S, DestinationPathName %S)\n",
 422            CabinetFileName, SourceFileName, DestinationPathName);
 423
 424     if (HasCurrentCabinet)
 425     {
 426         DPRINT("CurrentCabinetName: %S\n", CurrentCabinetName);
 427     }
 428
 429     if ((HasCurrentCabinet) && (wcscmp(CabinetFileName, CurrentCabinetName) == 0))
 430     {
 431         DPRINT("Using same cabinet as last time\n");
 432
 433         /* Use our last location because the files should be sequential */
 434         CabStatus = CabinetFindNextFileSequential(SourceFileName, &Search);
 435         if (CabStatus != CAB_STATUS_SUCCESS)
 436         {
 437             DPRINT("Sequential miss on file: %S\n", SourceFileName);
 438
 439             /* Looks like we got unlucky */
 440             CabStatus = CabinetFindFirst(SourceFileName, &Search);
 441         }
 442     }
 443     else
 444     {
 445         DPRINT("Using new cabinet\n");
 446
 447         if (HasCurrentCabinet)
 448         {
 449             CabinetCleanup();
 450         }
 451
 452         wcscpy(CurrentCabinetName, CabinetFileName);
 453
 454         CabinetInitialize();
 455         CabinetSetEventHandlers(NULL, NULL, NULL);
 456         CabinetSetCabinetName(CabinetFileName);
 457
 458         CabStatus = CabinetOpen();
 459         if (CabStatus == CAB_STATUS_SUCCESS)
 460         {
 461             DPRINT("Opened cabinet %S\n", CabinetGetCabinetName());
 462             HasCurrentCabinet = TRUE;
 463         }
 464         else
 465         {
 466             DPRINT("Cannot open cabinet (%d)\n", CabStatus);
 467             return STATUS_UNSUCCESSFUL;
 468         }
 469
 470         /* We have to start at the beginning here */
 471         CabStatus = CabinetFindFirst(SourceFileName, &Search);
 472     }
 473
 474     if (CabStatus != CAB_STATUS_SUCCESS)
 475     {
 476         DPRINT1("Unable to find '%S' in cabinet '%S'\n", SourceFileName, CabinetGetCabinetName());
 477         return STATUS_UNSUCCESSFUL;
 478     }
 479
 480     CabinetSetDestinationPath(DestinationPathName);
 481     CabStatus = CabinetExtractFile(&Search);
 482     if (CabStatus != CAB_STATUS_SUCCESS)
 483     {
 484         DPRINT("Cannot extract file %S (%d)\n", SourceFileName, CabStatus);
 485         return STATUS_UNSUCCESSFUL;
 486     }
 487
 488     return STATUS_SUCCESS;
 489 }
 490 #endif
 491
 492 BOOLEAN
 493 DoesFileExist(
 494     PWSTR PathName,
 495     PWSTR FileName)
 496 {
 497     OBJECT_ATTRIBUTES ObjectAttributes;
 498     IO_STATUS_BLOCK IoStatusBlock;
 499     UNICODE_STRING Name;
 500     WCHAR FullName[MAX_PATH];
 501     HANDLE FileHandle;
 502     NTSTATUS Status;
 503
 504     wcscpy(FullName, PathName);
 505     if (FileName != NULL)
 506     {
 507         if (FileName[0] != L'\\')
 508             wcscat(FullName, L"\\");
 509         wcscat(FullName, FileName);
 510     }
 511
 512     RtlInitUnicodeString(&Name,
 513                          FullName);
 514
 515     InitializeObjectAttributes(&ObjectAttributes,
 516                                &Name,
 517                                OBJ_CASE_INSENSITIVE,
 518                                NULL,
 519                                NULL);
 520
 521     Status = NtOpenFile(&FileHandle,
 522                         GENERIC_READ | SYNCHRONIZE,
 523                         &ObjectAttributes,
 524                         &IoStatusBlock,
 525                         0,
 526                         FILE_SYNCHRONOUS_IO_NONALERT);
 527     if (!NT_SUCCESS(Status))
 528     {
 529       return FALSE;
 530     }
 531
 532     NtClose(FileHandle);
 533
 534     return TRUE;
 535 }
 536
 537 /* EOF */