ReactOS  0.4.14-dev-606-g14ebc0b
bootsup.c
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1 /*
2  * COPYRIGHT: See COPYING in the top level directory
3  * PROJECT: ReactOS Setup Library
4  * FILE: base/setup/lib/bootsup.c
5  * PURPOSE: Bootloader support functions
6  * PROGRAMMERS: ...
7  * Hermes Belusca-Maito (hermes.belusca@sfr.fr)
8  */
9 
10 /* INCLUDES *****************************************************************/
11 
12 #include "precomp.h"
13 
14 #include "bldrsup.h"
15 #include "filesup.h"
16 #include "fsutil.h"
17 #include "partlist.h"
18 
19 #include "setuplib.h" // HAXX for IsUnattendedSetup!!
20 
21 #include "bootsup.h"
22 
23 #define NDEBUG
24 #include <debug.h>
25 
26 
27 /* TYPEDEFS *****************************************************************/
28 
29 /*
30  * BIG FIXME!!
31  * ===========
32  *
33  * All that stuff *MUST* go into the fsutil.c module.
34  * Indeed, all that relates to filesystem formatting details and as such
35  * *MUST* be abstracted out from this module (bootsup.c).
36  * However, bootsup.c can still deal with MBR code (actually it'll have
37  * at some point to share or give it to partlist.c, because when we'll
38  * support GPT disks, things will change a bit).
39  * And, bootsup.c can still manage initializing / adding boot entries
40  * into NTLDR and FREELDR, and installing the latter, and saving the old
41  * MBR / boot sectors in files.
42  */
43 #define SECTORSIZE 512
44 
45 #include <pshpack1.h>
46 typedef struct _FAT_BOOTSECTOR
47 {
48  UCHAR JumpBoot[3]; // Jump instruction to boot code
49  CHAR OemName[8]; // "MSWIN4.1" for MS formatted volumes
50  USHORT BytesPerSector; // Bytes per sector
51  UCHAR SectorsPerCluster; // Number of sectors in a cluster
52  USHORT ReservedSectors; // Reserved sectors, usually 1 (the bootsector)
53  UCHAR NumberOfFats; // Number of FAT tables
54  USHORT RootDirEntries; // Number of root directory entries (fat12/16)
55  USHORT TotalSectors; // Number of total sectors on the drive, 16-bit
56  UCHAR MediaDescriptor; // Media descriptor byte
57  USHORT SectorsPerFat; // Sectors per FAT table (fat12/16)
58  USHORT SectorsPerTrack; // Number of sectors in a track
59  USHORT NumberOfHeads; // Number of heads on the disk
60  ULONG HiddenSectors; // Hidden sectors (sectors before the partition start like the partition table)
61  ULONG TotalSectorsBig; // This field is the new 32-bit total count of sectors on the volume
62  UCHAR DriveNumber; // Int 0x13 drive number (e.g. 0x80)
63  UCHAR Reserved1; // Reserved (used by Windows NT). Code that formats FAT volumes should always set this byte to 0.
64  UCHAR BootSignature; // Extended boot signature (0x29). This is a signature byte that indicates that the following three fields in the boot sector are present.
65  ULONG VolumeSerialNumber; // Volume serial number
66  CHAR VolumeLabel[11]; // Volume label. This field matches the 11-byte volume label recorded in the root directory
67  CHAR FileSystemType[8]; // One of the strings "FAT12 ", "FAT16 ", or "FAT "
68 
69  UCHAR BootCodeAndData[448]; // The remainder of the boot sector
70 
71  USHORT BootSectorMagic; // 0xAA55
72 
73 } FAT_BOOTSECTOR, *PFAT_BOOTSECTOR;
74 
75 typedef struct _FAT32_BOOTSECTOR
76 {
77  UCHAR JumpBoot[3]; // Jump instruction to boot code
78  CHAR OemName[8]; // "MSWIN4.1" for MS formatted volumes
79  USHORT BytesPerSector; // Bytes per sector
80  UCHAR SectorsPerCluster; // Number of sectors in a cluster
81  USHORT ReservedSectors; // Reserved sectors, usually 1 (the bootsector)
82  UCHAR NumberOfFats; // Number of FAT tables
83  USHORT RootDirEntries; // Number of root directory entries (fat12/16)
84  USHORT TotalSectors; // Number of total sectors on the drive, 16-bit
85  UCHAR MediaDescriptor; // Media descriptor byte
86  USHORT SectorsPerFat; // Sectors per FAT table (fat12/16)
87  USHORT SectorsPerTrack; // Number of sectors in a track
88  USHORT NumberOfHeads; // Number of heads on the disk
89  ULONG HiddenSectors; // Hidden sectors (sectors before the partition start like the partition table)
90  ULONG TotalSectorsBig; // This field is the new 32-bit total count of sectors on the volume
91  ULONG SectorsPerFatBig; // This field is the FAT32 32-bit count of sectors occupied by ONE FAT. BPB_FATSz16 must be 0
92  USHORT ExtendedFlags; // Extended flags (fat32)
93  USHORT FileSystemVersion; // File system version (fat32)
94  ULONG RootDirStartCluster; // Starting cluster of the root directory (fat32)
95  USHORT FsInfo; // Sector number of FSINFO structure in the reserved area of the FAT32 volume. Usually 1.
96  USHORT BackupBootSector; // If non-zero, indicates the sector number in the reserved area of the volume of a copy of the boot record. Usually 6.
97  UCHAR Reserved[12]; // Reserved for future expansion
98  UCHAR DriveNumber; // Int 0x13 drive number (e.g. 0x80)
99  UCHAR Reserved1; // Reserved (used by Windows NT). Code that formats FAT volumes should always set this byte to 0.
100  UCHAR BootSignature; // Extended boot signature (0x29). This is a signature byte that indicates that the following three fields in the boot sector are present.
101  ULONG VolumeSerialNumber; // Volume serial number
102  CHAR VolumeLabel[11]; // Volume label. This field matches the 11-byte volume label recorded in the root directory
103  CHAR FileSystemType[8]; // Always set to the string "FAT32 "
104 
105  UCHAR BootCodeAndData[420]; // The remainder of the boot sector
106 
107  USHORT BootSectorMagic; // 0xAA55
108 
109 } FAT32_BOOTSECTOR, *PFAT32_BOOTSECTOR;
110 
111 typedef struct _BTRFS_BOOTSECTOR
112 {
113  UCHAR JumpBoot[3];
114  UCHAR ChunkMapSize;
115  UCHAR BootDrive;
116  ULONGLONG PartitionStartLBA;
117  UCHAR Fill[1521]; // 1536 - 15
118  USHORT BootSectorMagic;
119 } BTRFS_BOOTSECTOR, *PBTRFS_BOOTSECTOR;
120 C_ASSERT(sizeof(BTRFS_BOOTSECTOR) == 3 * 512);
121 
122 // TODO: Add more bootsector structures!
123 
124 #include <poppack.h>
125 
126 /* End of BIG FIXME!! */
127 
128 
129 /* FUNCTIONS ****************************************************************/
130 
131 static VOID
132 TrimTrailingPathSeparators_UStr(
133  IN OUT PUNICODE_STRING UnicodeString)
134 {
135  while (UnicodeString->Length >= sizeof(WCHAR) &&
136  UnicodeString->Buffer[UnicodeString->Length / sizeof(WCHAR) - 1] == OBJ_NAME_PATH_SEPARATOR)
137  {
138  UnicodeString->Length -= sizeof(WCHAR);
139  }
140 }
141 
142 
143 static VOID
144 CreateFreeLoaderReactOSEntries(
145  IN PVOID BootStoreHandle,
146  IN PCWSTR ArcPath)
147 {
148  UCHAR xxBootEntry[FIELD_OFFSET(BOOT_STORE_ENTRY, OsOptions) + sizeof(NTOS_OPTIONS)];
149  PBOOT_STORE_ENTRY BootEntry = (PBOOT_STORE_ENTRY)&xxBootEntry;
150  PNTOS_OPTIONS Options = (PNTOS_OPTIONS)&BootEntry->OsOptions;
151  BOOT_STORE_OPTIONS BootOptions;
152 
153  BootEntry->Version = FreeLdr;
154  BootEntry->BootFilePath = NULL;
155 
156  BootEntry->OsOptionsLength = sizeof(NTOS_OPTIONS);
157  RtlCopyMemory(Options->Signature,
158  NTOS_OPTIONS_SIGNATURE,
159  RTL_FIELD_SIZE(NTOS_OPTIONS, Signature));
160 
161  Options->OsLoadPath = ArcPath;
162 
163  /* ReactOS */
164  // BootEntry->BootEntryKey = MAKESTRKEY(L"ReactOS");
165  BootEntry->FriendlyName = L"\"ReactOS\"";
166  Options->OsLoadOptions = NULL; // L"";
167  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(L"ReactOS"));
168 
169  /* ReactOS_Debug */
170  // BootEntry->BootEntryKey = MAKESTRKEY(L"ReactOS_Debug");
171  BootEntry->FriendlyName = L"\"ReactOS (Debug)\"";
172  Options->OsLoadOptions = L"/DEBUG /DEBUGPORT=COM1 /BAUDRATE=115200 /SOS";
173  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(L"ReactOS_Debug"));
174 
175 #ifdef _WINKD_
176  /* ReactOS_VBoxDebug */
177  // BootEntry->BootEntryKey = MAKESTRKEY(L"ReactOS_VBoxDebug");
178  BootEntry->FriendlyName = L"\"ReactOS (VBoxDebug)\"";
179  Options->OsLoadOptions = L"/DEBUG /DEBUGPORT=VBOX /SOS";
180  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(L"ReactOS_VBoxDebug"));
181 #endif
182 #if DBG
183 #ifndef _WINKD_
184  /* ReactOS_KdSerial */
185  // BootEntry->BootEntryKey = MAKESTRKEY(L"ReactOS_KdSerial");
186  BootEntry->FriendlyName = L"\"ReactOS (RosDbg)\"";
187  Options->OsLoadOptions = L"/DEBUG /DEBUGPORT=COM1 /BAUDRATE=115200 /SOS /KDSERIAL";
188  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(L"ReactOS_KdSerial"));
189 #endif
190 
191  /* ReactOS_Screen */
192  // BootEntry->BootEntryKey = MAKESTRKEY(L"ReactOS_Screen");
193  BootEntry->FriendlyName = L"\"ReactOS (Screen)\"";
194  Options->OsLoadOptions = L"/DEBUG /DEBUGPORT=SCREEN /SOS";
195  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(L"ReactOS_Screen"));
196 
197  /* ReactOS_LogFile */
198  // BootEntry->BootEntryKey = MAKESTRKEY(L"ReactOS_LogFile");
199  BootEntry->FriendlyName = L"\"ReactOS (Log file)\"";
200  Options->OsLoadOptions = L"/DEBUG /DEBUGPORT=FILE /SOS";
201  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(L"ReactOS_LogFile"));
202 
203  /* ReactOS_Ram */
204  // BootEntry->BootEntryKey = MAKESTRKEY(L"ReactOS_Ram");
205  BootEntry->FriendlyName = L"\"ReactOS (RAM Disk)\"";
206  Options->OsLoadPath = L"ramdisk(0)\\ReactOS";
207  Options->OsLoadOptions = L"/DEBUG /DEBUGPORT=COM1 /BAUDRATE=115200 /SOS /RDPATH=reactos.img /RDIMAGEOFFSET=32256";
208  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(L"ReactOS_Ram"));
209 
210  /* ReactOS_EMS */
211  // BootEntry->BootEntryKey = MAKESTRKEY(L"ReactOS_EMS");
212  BootEntry->FriendlyName = L"\"ReactOS (Emergency Management Services)\"";
213  Options->OsLoadPath = ArcPath;
214  Options->OsLoadOptions = L"/DEBUG /DEBUGPORT=COM1 /BAUDRATE=115200 /SOS /redirect=com2 /redirectbaudrate=115200";
215  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(L"ReactOS_EMS"));
216 #endif
217 
218 
219 #if DBG
220  if (IsUnattendedSetup)
221  {
222  /* DefaultOS=ReactOS */
223 #ifndef _WINKD_
224  BootOptions.CurrentBootEntryKey = MAKESTRKEY(L"ReactOS_KdSerial");
225 #else
226  BootOptions.CurrentBootEntryKey = MAKESTRKEY(L"ReactOS_Debug");
227 #endif
228  }
229  else
230 #endif
231  {
232  /* DefaultOS=ReactOS */
233  BootOptions.CurrentBootEntryKey = MAKESTRKEY(L"ReactOS");
234  }
235 
236 #if DBG
237  if (IsUnattendedSetup)
238 #endif
239  {
240  /* Timeout=0 for unattended or non debug */
241  BootOptions.Timeout = 0;
242  }
243 #if DBG
244  else
245  {
246  /* Timeout=10 */
247  BootOptions.Timeout = 10;
248  }
249 #endif
250 
251  BootOptions.Version = FreeLdr;
252  SetBootStoreOptions(BootStoreHandle, &BootOptions, 2 | 1);
253 }
254 
255 static NTSTATUS
256 CreateFreeLoaderIniForReactOS(
257  IN PCWSTR IniPath,
258  IN PCWSTR ArcPath)
259 {
260  NTSTATUS Status;
261  PVOID BootStoreHandle;
262 
263  /* Initialize the INI file and create the common FreeLdr sections */
264  Status = OpenBootStore(&BootStoreHandle, IniPath, FreeLdr, TRUE);
265  if (!NT_SUCCESS(Status))
266  return Status;
267 
268  /* Add the ReactOS entries */
269  CreateFreeLoaderReactOSEntries(BootStoreHandle, ArcPath);
270 
271  /* Close the INI file */
272  CloseBootStore(BootStoreHandle);
273  return STATUS_SUCCESS;
274 }
275 
276 static NTSTATUS
277 CreateFreeLoaderIniForReactOSAndBootSector(
278  IN PCWSTR IniPath,
279  IN PCWSTR ArcPath,
280  IN PCWSTR Section,
281  IN PCWSTR Description,
282  IN PCWSTR BootDrive,
283  IN PCWSTR BootPartition,
284  IN PCWSTR BootSector)
285 {
286  NTSTATUS Status;
287  PVOID BootStoreHandle;
288  UCHAR xxBootEntry[FIELD_OFFSET(BOOT_STORE_ENTRY, OsOptions) + sizeof(BOOT_SECTOR_OPTIONS)];
289  PBOOT_STORE_ENTRY BootEntry = (PBOOT_STORE_ENTRY)&xxBootEntry;
290  PBOOT_SECTOR_OPTIONS Options = (PBOOT_SECTOR_OPTIONS)&BootEntry->OsOptions;
291 
292  /* Initialize the INI file and create the common FreeLdr sections */
293  Status = OpenBootStore(&BootStoreHandle, IniPath, FreeLdr, TRUE);
294  if (!NT_SUCCESS(Status))
295  return Status;
296 
297  /* Add the ReactOS entries */
298  CreateFreeLoaderReactOSEntries(BootStoreHandle, ArcPath);
299 
300  BootEntry->Version = FreeLdr;
301  BootEntry->BootFilePath = NULL;
302 
303  BootEntry->OsOptionsLength = sizeof(BOOT_SECTOR_OPTIONS);
304  RtlCopyMemory(Options->Signature,
305  BOOT_SECTOR_OPTIONS_SIGNATURE,
306  RTL_FIELD_SIZE(BOOT_SECTOR_OPTIONS, Signature));
307 
308  Options->Drive = BootDrive;
309  Options->Partition = BootPartition;
310  Options->BootSectorFileName = BootSector;
311 
312  // BootEntry->BootEntryKey = MAKESTRKEY(Section);
313  BootEntry->FriendlyName = Description;
314  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(Section));
315 
316  /* Close the INI file */
317  CloseBootStore(BootStoreHandle);
318  return STATUS_SUCCESS;
319 }
320 
321 //
322 // I think this function can be generalizable as:
323 // "find the corresponding 'ReactOS' boot entry in this loader config file
324 // (here abstraction comes there), and if none, add a new one".
325 //
326 
327 typedef struct _ENUM_REACTOS_ENTRIES_DATA
328 {
329  ULONG i;
330  BOOLEAN UseExistingEntry;
331  PCWSTR ArcPath;
332  WCHAR SectionName[80];
333  WCHAR OsName[80];
334 } ENUM_REACTOS_ENTRIES_DATA, *PENUM_REACTOS_ENTRIES_DATA;
335 
336 // PENUM_BOOT_ENTRIES_ROUTINE
337 static NTSTATUS
338 NTAPI
339 EnumerateReactOSEntries(
340  IN BOOT_STORE_TYPE Type,
341  IN PBOOT_STORE_ENTRY BootEntry,
342  IN PVOID Parameter OPTIONAL)
343 {
344  NTSTATUS Status;
345  PENUM_REACTOS_ENTRIES_DATA Data = (PENUM_REACTOS_ENTRIES_DATA)Parameter;
346  PNTOS_OPTIONS Options = (PNTOS_OPTIONS)&BootEntry->OsOptions;
347  WCHAR SystemPath[MAX_PATH];
348 
349  /* We have a boot entry */
350 
351  /* Check for supported boot type "Windows2003" */
352  if (BootEntry->OsOptionsLength < sizeof(NTOS_OPTIONS) ||
353  RtlCompareMemory(&BootEntry->OsOptions /* Signature */,
354  NTOS_OPTIONS_SIGNATURE,
355  RTL_FIELD_SIZE(NTOS_OPTIONS, Signature)) !=
356  RTL_FIELD_SIZE(NTOS_OPTIONS, Signature))
357  {
358  /* This is not a ReactOS entry */
359  // DPRINT(" An installation '%S' of unsupported type '%S'\n",
360  // BootEntry->FriendlyName, BootEntry->Version ? BootEntry->Version : L"n/a");
361  DPRINT(" An installation '%S' of unsupported type %lu\n",
362  BootEntry->FriendlyName, BootEntry->OsOptionsLength);
363  /* Continue the enumeration */
364  goto SkipThisEntry;
365  }
366 
367  /* BootType is Windows2003, now check OsLoadPath */
368  if (!Options->OsLoadPath || !*Options->OsLoadPath)
369  {
370  /* Certainly not a ReactOS installation */
371  DPRINT1(" A Win2k3 install '%S' without an ARC path?!\n", BootEntry->FriendlyName);
372  /* Continue the enumeration */
373  goto SkipThisEntry;
374  }
375 
376  if (_wcsicmp(Options->OsLoadPath, Data->ArcPath) != 0)
377  {
378  /* Not found, retry with a quoted path */
379  Status = RtlStringCchPrintfW(SystemPath, ARRAYSIZE(SystemPath), L"\"%s\"", Data->ArcPath);
380  if (!NT_SUCCESS(Status) || _wcsicmp(Options->OsLoadPath, SystemPath) != 0)
381  {
382  /*
383  * This entry is a ReactOS entry, but the SystemRoot
384  * does not match the one we are looking for.
385  */
386  /* Continue the enumeration */
387  goto SkipThisEntry;
388  }
389  }
390 
391  DPRINT(" Found a candidate Win2k3 install '%S' with ARC path '%S'\n",
392  BootEntry->FriendlyName, Options->OsLoadPath);
393  // DPRINT(" Found a Win2k3 install '%S' with ARC path '%S'\n",
394  // BootEntry->FriendlyName, Options->OsLoadPath);
395 
396  DPRINT("EnumerateReactOSEntries: OsLoadPath: '%S'\n", Options->OsLoadPath);
397 
398  Data->UseExistingEntry = TRUE;
399  RtlStringCchCopyW(Data->OsName, ARRAYSIZE(Data->OsName), BootEntry->FriendlyName);
400 
401  /* We have found our entry, stop the enumeration now! */
402  return STATUS_NO_MORE_ENTRIES;
403 
404 SkipThisEntry:
405  Data->UseExistingEntry = FALSE;
406  if (Type == FreeLdr && wcscmp(Data->SectionName, (PWSTR)BootEntry->BootEntryKey)== 0)
407  {
408  RtlStringCchPrintfW(Data->SectionName, ARRAYSIZE(Data->SectionName),
409  L"ReactOS_%lu", Data->i);
410  RtlStringCchPrintfW(Data->OsName, ARRAYSIZE(Data->OsName),
411  L"\"ReactOS %lu\"", Data->i);
412  Data->i++;
413  }
414  return STATUS_SUCCESS;
415 }
416 
417 static
418 NTSTATUS
419 UpdateFreeLoaderIni(
420  IN PCWSTR IniPath,
421  IN PCWSTR ArcPath)
422 {
423  NTSTATUS Status;
424  PVOID BootStoreHandle;
425  ENUM_REACTOS_ENTRIES_DATA Data;
426  UCHAR xxBootEntry[FIELD_OFFSET(BOOT_STORE_ENTRY, OsOptions) + sizeof(NTOS_OPTIONS)];
427  PBOOT_STORE_ENTRY BootEntry = (PBOOT_STORE_ENTRY)&xxBootEntry;
428  PNTOS_OPTIONS Options = (PNTOS_OPTIONS)&BootEntry->OsOptions;
429 
430  /* Open the INI file */
431  Status = OpenBootStore(&BootStoreHandle, IniPath, FreeLdr, /*TRUE*/ FALSE);
432  if (!NT_SUCCESS(Status))
433  return Status;
434 
435  /* Find an existing usable or an unused section name */
436  Data.UseExistingEntry = TRUE;
437  Data.i = 1;
438  Data.ArcPath = ArcPath;
439  RtlStringCchCopyW(Data.SectionName, ARRAYSIZE(Data.SectionName), L"ReactOS");
440  RtlStringCchCopyW(Data.OsName, ARRAYSIZE(Data.OsName), L"\"ReactOS\"");
441 
442  //
443  // FIXME: We temporarily use EnumerateBootStoreEntries, until
444  // both QueryBootStoreEntry and ModifyBootStoreEntry get implemented.
445  //
446  Status = EnumerateBootStoreEntries(BootStoreHandle, EnumerateReactOSEntries, &Data);
447 
448  /* Create a new "ReactOS" entry if there is none already existing that suits us */
449  if (!Data.UseExistingEntry)
450  {
451  // RtlStringCchPrintfW(Data.SectionName, ARRAYSIZE(Data.SectionName), L"ReactOS_%lu", Data.i);
452  // RtlStringCchPrintfW(Data.OsName, ARRAYSIZE(Data.OsName), L"\"ReactOS %lu\"", Data.i);
453 
454  BootEntry->Version = FreeLdr;
455  BootEntry->BootFilePath = NULL;
456 
457  BootEntry->OsOptionsLength = sizeof(NTOS_OPTIONS);
458  RtlCopyMemory(Options->Signature,
459  NTOS_OPTIONS_SIGNATURE,
460  RTL_FIELD_SIZE(NTOS_OPTIONS, Signature));
461 
462  Options->OsLoadPath = ArcPath;
463 
464  // BootEntry->BootEntryKey = MAKESTRKEY(Data.SectionName);
465  BootEntry->FriendlyName = Data.OsName;
466  Options->OsLoadOptions = NULL; // L"";
467  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(Data.SectionName));
468  }
469 
470  /* Close the INI file */
471  CloseBootStore(BootStoreHandle);
472  return STATUS_SUCCESS;
473 }
474 
475 static
476 NTSTATUS
477 UpdateBootIni(
478  IN PCWSTR IniPath,
479  IN PCWSTR EntryName, // ~= ArcPath
480  IN PCWSTR EntryValue)
481 {
482  NTSTATUS Status;
483  PVOID BootStoreHandle;
484  ENUM_REACTOS_ENTRIES_DATA Data;
485 
486  // NOTE: Technically it would be "BootSector"...
487  UCHAR xxBootEntry[FIELD_OFFSET(BOOT_STORE_ENTRY, OsOptions) + sizeof(NTOS_OPTIONS)];
488  PBOOT_STORE_ENTRY BootEntry = (PBOOT_STORE_ENTRY)&xxBootEntry;
489  PNTOS_OPTIONS Options = (PNTOS_OPTIONS)&BootEntry->OsOptions;
490 
491  /* Open the INI file */
492  Status = OpenBootStore(&BootStoreHandle, IniPath, NtLdr, FALSE);
493  if (!NT_SUCCESS(Status))
494  return Status;
495 
496  /* Find an existing usable or an unused section name */
497  Data.UseExistingEntry = TRUE;
498  // Data.i = 1;
499  Data.ArcPath = EntryName;
500  // RtlStringCchCopyW(Data.SectionName, ARRAYSIZE(Data.SectionName), L"ReactOS");
501  RtlStringCchCopyW(Data.OsName, ARRAYSIZE(Data.OsName), L"\"ReactOS\"");
502 
503  //
504  // FIXME: We temporarily use EnumerateBootStoreEntries, until
505  // both QueryBootStoreEntry and ModifyBootStoreEntry get implemented.
506  //
507  Status = EnumerateBootStoreEntries(BootStoreHandle, EnumerateReactOSEntries, &Data);
508 
509  /* If either the key was not found, or contains something else, add a new one */
510  if (!Data.UseExistingEntry /* ||
511  ( (Status == STATUS_NO_MORE_ENTRIES) && wcscmp(Data.OsName, EntryValue) ) */)
512  {
513  BootEntry->Version = NtLdr;
514  BootEntry->BootFilePath = NULL;
515 
516  BootEntry->OsOptionsLength = sizeof(NTOS_OPTIONS);
517  RtlCopyMemory(Options->Signature,
518  NTOS_OPTIONS_SIGNATURE,
519  RTL_FIELD_SIZE(NTOS_OPTIONS, Signature));
520 
521  Options->OsLoadPath = EntryName;
522 
523  // BootEntry->BootEntryKey = MAKESTRKEY(Data.SectionName);
524  // BootEntry->FriendlyName = Data.OsName;
525  BootEntry->FriendlyName = EntryValue;
526  Options->OsLoadOptions = NULL; // L"";
527  AddBootStoreEntry(BootStoreHandle, BootEntry, MAKESTRKEY(0 /*Data.SectionName*/));
528  }
529 
530  /* Close the INI file */
531  CloseBootStore(BootStoreHandle);
532  return STATUS_SUCCESS; // Status;
533 }
534 
535 
536 static
537 BOOLEAN
538 IsThereAValidBootSector(
539  IN PCWSTR RootPath)
540 {
541  /*
542  * We first demand that the bootsector has a valid signature at its end.
543  * We then check the first 3 bytes (as a ULONG) of the bootsector for a
544  * potential "valid" instruction (the BIOS starts execution of the bootsector
545  * at its beginning). Currently this criterium is that this ULONG must be
546  * non-zero. If both these tests pass, then the bootsector is valid; otherwise
547  * it is invalid and certainly needs to be overwritten.
548  */
549 
550  BOOLEAN IsValid = FALSE;
551  NTSTATUS Status;
552  UNICODE_STRING RootPartition;
553  OBJECT_ATTRIBUTES ObjectAttributes;
554  IO_STATUS_BLOCK IoStatusBlock;
555  HANDLE FileHandle;
556  LARGE_INTEGER FileOffset;
557  PUCHAR BootSector;
558 
559  /* Allocate buffer for bootsector */
560  BootSector = RtlAllocateHeap(ProcessHeap, 0, SECTORSIZE);
561  if (BootSector == NULL)
562  return FALSE; // STATUS_INSUFFICIENT_RESOURCES;
563  RtlZeroMemory(BootSector, SECTORSIZE);
564 
565  /* Open the root partition - Remove any trailing backslash if needed */
566  RtlInitUnicodeString(&RootPartition, RootPath);
567  TrimTrailingPathSeparators_UStr(&RootPartition);
568 
569  InitializeObjectAttributes(&ObjectAttributes,
570  &RootPartition,
571  OBJ_CASE_INSENSITIVE,
572  NULL,
573  NULL);
574 
575  Status = NtOpenFile(&FileHandle,
576  GENERIC_READ | SYNCHRONIZE,
577  &ObjectAttributes,
578  &IoStatusBlock,
579  FILE_SHARE_READ | FILE_SHARE_WRITE,
580  FILE_SYNCHRONOUS_IO_NONALERT);
581  if (!NT_SUCCESS(Status))
582  goto Quit;
583 
584  /* Read current boot sector into buffer */
585  FileOffset.QuadPart = 0ULL;
586  Status = NtReadFile(FileHandle,
587  NULL,
588  NULL,
589  NULL,
590  &IoStatusBlock,
591  BootSector,
592  SECTORSIZE,
593  &FileOffset,
594  NULL);
595  NtClose(FileHandle);
596  if (!NT_SUCCESS(Status))
597  goto Quit;
598 
599  /* Check for the existence of the bootsector signature */
600  IsValid = (*(PUSHORT)(BootSector + 0x1FE) == 0xAA55);
601  if (IsValid)
602  {
603  /* Check for the first instruction encoded on three bytes */
604  IsValid = (((*(PULONG)BootSector) & 0x00FFFFFF) != 0x00000000);
605  }
606 
607 Quit:
608  /* Free the boot sector */
609  RtlFreeHeap(ProcessHeap, 0, BootSector);
610  return IsValid;
611 }
612 
613 static
614 NTSTATUS
615 SaveBootSector(
616  IN PCWSTR RootPath,
617  IN PCWSTR DstPath,
618  IN ULONG Length)
619 {
620  NTSTATUS Status;
621  UNICODE_STRING Name;
622  OBJECT_ATTRIBUTES ObjectAttributes;
623  IO_STATUS_BLOCK IoStatusBlock;
624  HANDLE FileHandle;
625  LARGE_INTEGER FileOffset;
626  PUCHAR BootSector;
627 
628  /* Allocate buffer for bootsector */
629  BootSector = RtlAllocateHeap(ProcessHeap, 0, Length);
630  if (BootSector == NULL)
631  return STATUS_INSUFFICIENT_RESOURCES;
632 
633  /* Open the root partition - Remove any trailing backslash if needed */
634  RtlInitUnicodeString(&Name, RootPath);
635  TrimTrailingPathSeparators_UStr(&Name);
636 
637  InitializeObjectAttributes(&ObjectAttributes,
638  &Name,
639  OBJ_CASE_INSENSITIVE,
640  NULL,
641  NULL);
642 
643  Status = NtOpenFile(&FileHandle,
644  GENERIC_READ | SYNCHRONIZE,
645  &ObjectAttributes,
646  &IoStatusBlock,
647  FILE_SHARE_READ | FILE_SHARE_WRITE,
648  FILE_SYNCHRONOUS_IO_NONALERT);
649  if (!NT_SUCCESS(Status))
650  {
651  RtlFreeHeap(ProcessHeap, 0, BootSector);
652  return Status;
653  }
654 
655  /* Read current boot sector into buffer */
656  FileOffset.QuadPart = 0ULL;
657  Status = NtReadFile(FileHandle,
658  NULL,
659  NULL,
660  NULL,
661  &IoStatusBlock,
662  BootSector,
663  Length,
664  &FileOffset,
665  NULL);
666  NtClose(FileHandle);
667  if (!NT_SUCCESS(Status))
668  {
669  RtlFreeHeap(ProcessHeap, 0, BootSector);
670  return Status;
671  }
672 
673  /* Write bootsector to DstPath */
674  RtlInitUnicodeString(&Name, DstPath);
675  InitializeObjectAttributes(&ObjectAttributes,
676  &Name,
677  OBJ_CASE_INSENSITIVE,
678  NULL,
679  NULL);
680 
681  Status = NtCreateFile(&FileHandle,
682  GENERIC_WRITE | SYNCHRONIZE,
683  &ObjectAttributes,
684  &IoStatusBlock,
685  NULL,
686  FILE_ATTRIBUTE_NORMAL,
687  0,
688  FILE_SUPERSEDE,
689  FILE_SYNCHRONOUS_IO_NONALERT | FILE_SEQUENTIAL_ONLY,
690  NULL,
691  0);
692  if (!NT_SUCCESS(Status))
693  {
694  RtlFreeHeap(ProcessHeap, 0, BootSector);
695  return Status;
696  }
697 
698  Status = NtWriteFile(FileHandle,
699  NULL,
700  NULL,
701  NULL,
702  &IoStatusBlock,
703  BootSector,
704  Length,
705  NULL,
706  NULL);
707  NtClose(FileHandle);
708 
709  /* Free the boot sector */
710  RtlFreeHeap(ProcessHeap, 0, BootSector);
711 
712  return Status;
713 }
714 
715 
716 static
717 NTSTATUS
718 InstallMbrBootCodeToDiskHelper(
719  IN PCWSTR SrcPath,
720  IN PCWSTR RootPath)
721 {
722  NTSTATUS Status;
723  UNICODE_STRING Name;
724  OBJECT_ATTRIBUTES ObjectAttributes;
725  IO_STATUS_BLOCK IoStatusBlock;
726  HANDLE FileHandle;
727  LARGE_INTEGER FileOffset;
728  PPARTITION_SECTOR OrigBootSector;
729  PPARTITION_SECTOR NewBootSector;
730 
731  /* Allocate buffer for original bootsector */
732  OrigBootSector = RtlAllocateHeap(ProcessHeap, 0, sizeof(PARTITION_SECTOR));
733  if (OrigBootSector == NULL)
734  return STATUS_INSUFFICIENT_RESOURCES;
735 
736  /* Open the root partition - Remove any trailing backslash if needed */
737  RtlInitUnicodeString(&Name, RootPath);
738  TrimTrailingPathSeparators_UStr(&Name);
739 
740  InitializeObjectAttributes(&ObjectAttributes,
741  &Name,
742  OBJ_CASE_INSENSITIVE,
743  NULL,
744  NULL);
745 
746  Status = NtOpenFile(&FileHandle,
747  GENERIC_READ | SYNCHRONIZE,
748  &ObjectAttributes,
749  &IoStatusBlock,
750  FILE_SHARE_READ | FILE_SHARE_WRITE,
751  FILE_SYNCHRONOUS_IO_NONALERT);
752  if (!NT_SUCCESS(Status))
753  {
754  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
755  return Status;
756  }
757 
758  /* Read current boot sector into buffer */
759  FileOffset.QuadPart = 0ULL;
760  Status = NtReadFile(FileHandle,
761  NULL,
762  NULL,
763  NULL,
764  &IoStatusBlock,
765  OrigBootSector,
766  sizeof(PARTITION_SECTOR),
767  &FileOffset,
768  NULL);
769  NtClose(FileHandle);
770  if (!NT_SUCCESS(Status))
771  {
772  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
773  return Status;
774  }
775 
776  /* Allocate buffer for new bootsector */
777  NewBootSector = RtlAllocateHeap(ProcessHeap, 0, sizeof(PARTITION_SECTOR));
778  if (NewBootSector == NULL)
779  {
780  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
781  return STATUS_INSUFFICIENT_RESOURCES;
782  }
783 
784  /* Read new bootsector from SrcPath */
785  RtlInitUnicodeString(&Name, SrcPath);
786  InitializeObjectAttributes(&ObjectAttributes,
787  &Name,
788  OBJ_CASE_INSENSITIVE,
789  NULL,
790  NULL);
791 
792  Status = NtOpenFile(&FileHandle,
793  GENERIC_READ | SYNCHRONIZE,
794  &ObjectAttributes,
795  &IoStatusBlock,
796  FILE_SHARE_READ,
797  FILE_SYNCHRONOUS_IO_NONALERT);
798  if (!NT_SUCCESS(Status))
799  {
800  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
801  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
802  return Status;
803  }
804 
805  Status = NtReadFile(FileHandle,
806  NULL,
807  NULL,
808  NULL,
809  &IoStatusBlock,
810  NewBootSector,
811  sizeof(PARTITION_SECTOR),
812  NULL,
813  NULL);
814  NtClose(FileHandle);
815  if (!NT_SUCCESS(Status))
816  {
817  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
818  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
819  return Status;
820  }
821 
822  /*
823  * Copy the disk signature, the reserved fields and
824  * the partition table from the old MBR to the new one.
825  */
826  RtlCopyMemory(&NewBootSector->Signature,
827  &OrigBootSector->Signature,
828  sizeof(PARTITION_SECTOR) - offsetof(PARTITION_SECTOR, Signature)
829  /* Length of partition table */);
830 
831  /* Free the original boot sector */
832  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
833 
834  /* Open the root partition - Remove any trailing backslash if needed */
835  RtlInitUnicodeString(&Name, RootPath);
836  TrimTrailingPathSeparators_UStr(&Name);
837 
838  InitializeObjectAttributes(&ObjectAttributes,
839  &Name,
840  OBJ_CASE_INSENSITIVE,
841  NULL,
842  NULL);
843 
844  Status = NtOpenFile(&FileHandle,
845  GENERIC_WRITE | SYNCHRONIZE,
846  &ObjectAttributes,
847  &IoStatusBlock,
848  FILE_SHARE_READ | FILE_SHARE_WRITE,
849  FILE_SYNCHRONOUS_IO_NONALERT | FILE_SEQUENTIAL_ONLY);
850  if (!NT_SUCCESS(Status))
851  {
852  DPRINT1("NtOpenFile() failed (Status %lx)\n", Status);
853  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
854  return Status;
855  }
856 
857  /* Write new bootsector to RootPath */
858  FileOffset.QuadPart = 0ULL;
859  Status = NtWriteFile(FileHandle,
860  NULL,
861  NULL,
862  NULL,
863  &IoStatusBlock,
864  NewBootSector,
865  sizeof(PARTITION_SECTOR),
866  &FileOffset,
867  NULL);
868  NtClose(FileHandle);
869 
870  /* Free the new boot sector */
871  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
872 
873  return Status;
874 }
875 
876 NTSTATUS
877 InstallMbrBootCodeToDisk(
878  IN PUNICODE_STRING SystemRootPath,
879  IN PUNICODE_STRING SourceRootPath,
880  IN PCWSTR DestinationDevicePathBuffer)
881 {
882  NTSTATUS Status;
883  WCHAR SourceMbrPathBuffer[MAX_PATH];
884  WCHAR DstPath[MAX_PATH];
885 
886 #if 0
887  /*
888  * The DestinationDevicePathBuffer parameter has been built with
889  * the following instruction by the caller; I'm not yet sure whether
890  * I actually want this function to build the path instead, hence
891  * I keep this code here but disabled for now...
892  */
893  WCHAR DestinationDevicePathBuffer[MAX_PATH];
894  RtlStringCchPrintfW(DestinationDevicePathBuffer, ARRAYSIZE(DestinationDevicePathBuffer),
895  L"\\Device\\Harddisk%d\\Partition0",
896  DiskNumber);
897 #endif
898 
899  CombinePaths(SourceMbrPathBuffer, ARRAYSIZE(SourceMbrPathBuffer), 2,
900  SourceRootPath->Buffer, L"\\loader\\dosmbr.bin");
901 
902  if (IsThereAValidBootSector(DestinationDevicePathBuffer))
903  {
904  /* Save current MBR */
905  CombinePaths(DstPath, ARRAYSIZE(DstPath), 2,
906  SystemRootPath->Buffer, L"mbr.old");
907 
908  DPRINT1("Save MBR: %S ==> %S\n", DestinationDevicePathBuffer, DstPath);
909  Status = SaveBootSector(DestinationDevicePathBuffer, DstPath, sizeof(PARTITION_SECTOR));
910  if (!NT_SUCCESS(Status))
911  {
912  DPRINT1("SaveBootSector() failed (Status %lx)\n", Status);
913  // Don't care if we succeeded or not saving the old MBR, just go ahead.
914  }
915  }
916 
917  DPRINT1("Install MBR bootcode: %S ==> %S\n",
918  SourceMbrPathBuffer, DestinationDevicePathBuffer);
919 
920  return InstallMbrBootCodeToDiskHelper(SourceMbrPathBuffer,
921  DestinationDevicePathBuffer);
922 }
923 
924 
925 static
926 NTSTATUS
927 InstallFat12BootCodeToFloppy(
928  IN PCWSTR SrcPath,
929  IN PCWSTR RootPath)
930 {
931  NTSTATUS Status;
932  UNICODE_STRING Name;
933  OBJECT_ATTRIBUTES ObjectAttributes;
934  IO_STATUS_BLOCK IoStatusBlock;
935  HANDLE FileHandle;
936  LARGE_INTEGER FileOffset;
937  PFAT_BOOTSECTOR OrigBootSector;
938  PFAT_BOOTSECTOR NewBootSector;
939 
940  /* Allocate buffer for original bootsector */
941  OrigBootSector = RtlAllocateHeap(ProcessHeap, 0, SECTORSIZE);
942  if (OrigBootSector == NULL)
943  return STATUS_INSUFFICIENT_RESOURCES;
944 
945  /* Open the root partition - Remove any trailing backslash if needed */
946  RtlInitUnicodeString(&Name, RootPath);
947  TrimTrailingPathSeparators_UStr(&Name);
948 
949  InitializeObjectAttributes(&ObjectAttributes,
950  &Name,
951  OBJ_CASE_INSENSITIVE,
952  NULL,
953  NULL);
954 
955  Status = NtOpenFile(&FileHandle,
956  GENERIC_READ | SYNCHRONIZE,
957  &ObjectAttributes,
958  &IoStatusBlock,
959  FILE_SHARE_READ | FILE_SHARE_WRITE,
960  FILE_SYNCHRONOUS_IO_NONALERT);
961  if (!NT_SUCCESS(Status))
962  {
963  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
964  return Status;
965  }
966 
967  /* Read current boot sector into buffer */
968  FileOffset.QuadPart = 0ULL;
969  Status = NtReadFile(FileHandle,
970  NULL,
971  NULL,
972  NULL,
973  &IoStatusBlock,
974  OrigBootSector,
975  SECTORSIZE,
976  &FileOffset,
977  NULL);
978  NtClose(FileHandle);
979  if (!NT_SUCCESS(Status))
980  {
981  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
982  return Status;
983  }
984 
985  /* Allocate buffer for new bootsector */
986  NewBootSector = RtlAllocateHeap(ProcessHeap,
987  0,
988  SECTORSIZE);
989  if (NewBootSector == NULL)
990  {
991  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
992  return STATUS_INSUFFICIENT_RESOURCES;
993  }
994 
995  /* Read new bootsector from SrcPath */
996  RtlInitUnicodeString(&Name, SrcPath);
997 
998  InitializeObjectAttributes(&ObjectAttributes,
999  &Name,
1000  OBJ_CASE_INSENSITIVE,
1001  NULL,
1002  NULL);
1003 
1004  Status = NtOpenFile(&FileHandle,
1005  GENERIC_READ | SYNCHRONIZE,
1006  &ObjectAttributes,
1007  &IoStatusBlock,
1008  FILE_SHARE_READ,
1009  FILE_SYNCHRONOUS_IO_NONALERT);
1010  if (!NT_SUCCESS(Status))
1011  {
1012  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1013  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1014  return Status;
1015  }
1016 
1017  Status = NtReadFile(FileHandle,
1018  NULL,
1019  NULL,
1020  NULL,
1021  &IoStatusBlock,
1022  NewBootSector,
1023  SECTORSIZE,
1024  NULL,
1025  NULL);
1026  NtClose(FileHandle);
1027  if (!NT_SUCCESS(Status))
1028  {
1029  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1030  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1031  return Status;
1032  }
1033 
1034  /* Adjust bootsector (copy a part of the FAT16 BPB) */
1035  memcpy(&NewBootSector->OemName,
1036  &OrigBootSector->OemName,
1037  FIELD_OFFSET(FAT_BOOTSECTOR, BootCodeAndData) -
1038  FIELD_OFFSET(FAT_BOOTSECTOR, OemName));
1039 
1040  /* Free the original boot sector */
1041  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1042 
1043  /* Open the root partition - Remove any trailing backslash if needed */
1044  RtlInitUnicodeString(&Name, RootPath);
1045  TrimTrailingPathSeparators_UStr(&Name);
1046 
1047  InitializeObjectAttributes(&ObjectAttributes,
1048  &Name,
1049  OBJ_CASE_INSENSITIVE,
1050  NULL,
1051  NULL);
1052 
1053  Status = NtOpenFile(&FileHandle,
1054  GENERIC_WRITE | SYNCHRONIZE,
1055  &ObjectAttributes,
1056  &IoStatusBlock,
1057  FILE_SHARE_READ | FILE_SHARE_WRITE,
1058  FILE_SYNCHRONOUS_IO_NONALERT | FILE_SEQUENTIAL_ONLY);
1059  if (!NT_SUCCESS(Status))
1060  {
1061  DPRINT1("NtOpenFile() failed (Status %lx)\n", Status);
1062  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1063  return Status;
1064  }
1065 
1066  /* Write new bootsector to RootPath */
1067  FileOffset.QuadPart = 0ULL;
1068  Status = NtWriteFile(FileHandle,
1069  NULL,
1070  NULL,
1071  NULL,
1072  &IoStatusBlock,
1073  NewBootSector,
1074  SECTORSIZE,
1075  &FileOffset,
1076  NULL);
1077  NtClose(FileHandle);
1078 
1079  /* Free the new boot sector */
1080  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1081 
1082  return Status;
1083 }
1084 
1085 static
1086 NTSTATUS
1087 InstallFat16BootCode(
1088  IN PCWSTR SrcPath, // FAT16 bootsector source file (on the installation medium)
1089  IN HANDLE DstPath, // Where to save the bootsector built from the source + partition information
1090  IN HANDLE RootPartition) // Partition holding the (old) FAT16 information
1091 {
1092  NTSTATUS Status;
1093  UNICODE_STRING Name;
1094  OBJECT_ATTRIBUTES ObjectAttributes;
1095  IO_STATUS_BLOCK IoStatusBlock;
1096  HANDLE FileHandle;
1097  LARGE_INTEGER FileOffset;
1098  PFAT_BOOTSECTOR OrigBootSector;
1099  PFAT_BOOTSECTOR NewBootSector;
1100 
1101  /* Allocate a buffer for the original bootsector */
1102  OrigBootSector = RtlAllocateHeap(ProcessHeap, 0, SECTORSIZE);
1103  if (OrigBootSector == NULL)
1104  return STATUS_INSUFFICIENT_RESOURCES;
1105 
1106  /* Read the current partition boot sector into the buffer */
1107  FileOffset.QuadPart = 0ULL;
1108  Status = NtReadFile(RootPartition,
1109  NULL,
1110  NULL,
1111  NULL,
1112  &IoStatusBlock,
1113  OrigBootSector,
1114  SECTORSIZE,
1115  &FileOffset,
1116  NULL);
1117  if (!NT_SUCCESS(Status))
1118  {
1119  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1120  return Status;
1121  }
1122 
1123  /* Allocate a buffer for the new bootsector */
1124  NewBootSector = RtlAllocateHeap(ProcessHeap, 0, SECTORSIZE);
1125  if (NewBootSector == NULL)
1126  {
1127  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1128  return STATUS_INSUFFICIENT_RESOURCES;
1129  }
1130 
1131  /* Read the new bootsector from SrcPath */
1132  RtlInitUnicodeString(&Name, SrcPath);
1133  InitializeObjectAttributes(&ObjectAttributes,
1134  &Name,
1135  OBJ_CASE_INSENSITIVE,
1136  NULL,
1137  NULL);
1138 
1139  Status = NtOpenFile(&FileHandle,
1140  GENERIC_READ | SYNCHRONIZE,
1141  &ObjectAttributes,
1142  &IoStatusBlock,
1143  FILE_SHARE_READ,
1144  FILE_SYNCHRONOUS_IO_NONALERT);
1145  if (!NT_SUCCESS(Status))
1146  {
1147  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1148  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1149  return Status;
1150  }
1151 
1152  FileOffset.QuadPart = 0ULL;
1153  Status = NtReadFile(FileHandle,
1154  NULL,
1155  NULL,
1156  NULL,
1157  &IoStatusBlock,
1158  NewBootSector,
1159  SECTORSIZE,
1160  &FileOffset,
1161  NULL);
1162  NtClose(FileHandle);
1163  if (!NT_SUCCESS(Status))
1164  {
1165  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1166  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1167  return Status;
1168  }
1169 
1170  /* Adjust the bootsector (copy a part of the FAT16 BPB) */
1171  memcpy(&NewBootSector->OemName,
1172  &OrigBootSector->OemName,
1173  FIELD_OFFSET(FAT_BOOTSECTOR, BootCodeAndData) -
1174  FIELD_OFFSET(FAT_BOOTSECTOR, OemName));
1175 
1176  /* Free the original boot sector */
1177  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1178 
1179  /* Write the new bootsector to DstPath */
1180  FileOffset.QuadPart = 0ULL;
1181  Status = NtWriteFile(DstPath,
1182  NULL,
1183  NULL,
1184  NULL,
1185  &IoStatusBlock,
1186  NewBootSector,
1187  SECTORSIZE,
1188  &FileOffset,
1189  NULL);
1190 
1191  /* Free the new boot sector */
1192  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1193 
1194  return Status;
1195 }
1196 
1197 static
1198 NTSTATUS
1199 InstallFat16BootCodeToFile(
1200  IN PCWSTR SrcPath,
1201  IN PCWSTR DstPath,
1202  IN PCWSTR RootPath)
1203 {
1204  NTSTATUS Status;
1205  UNICODE_STRING Name;
1206  OBJECT_ATTRIBUTES ObjectAttributes;
1207  IO_STATUS_BLOCK IoStatusBlock;
1208  HANDLE PartitionHandle, FileHandle;
1209 
1210  /*
1211  * Open the root partition from which the boot sector
1212  * parameters will be obtained.
1213  * Remove any trailing backslash if needed.
1214  */
1215  RtlInitUnicodeString(&Name, RootPath);
1216  TrimTrailingPathSeparators_UStr(&Name);
1217 
1218  InitializeObjectAttributes(&ObjectAttributes,
1219  &Name,
1220  OBJ_CASE_INSENSITIVE,
1221  NULL,
1222  NULL);
1223 
1224  Status = NtOpenFile(&PartitionHandle,
1225  GENERIC_READ | SYNCHRONIZE,
1226  &ObjectAttributes,
1227  &IoStatusBlock,
1228  FILE_SHARE_READ | FILE_SHARE_WRITE,
1229  FILE_SYNCHRONOUS_IO_NONALERT /* | FILE_SEQUENTIAL_ONLY */);
1230  if (!NT_SUCCESS(Status))
1231  return Status;
1232 
1233  /* Open or create the file where the new bootsector will be saved */
1234  RtlInitUnicodeString(&Name, DstPath);
1235  InitializeObjectAttributes(&ObjectAttributes,
1236  &Name,
1237  OBJ_CASE_INSENSITIVE,
1238  NULL,
1239  NULL);
1240 
1241  Status = NtCreateFile(&FileHandle,
1242  GENERIC_WRITE | SYNCHRONIZE,
1243  &ObjectAttributes,
1244  &IoStatusBlock,
1245  NULL,
1246  FILE_ATTRIBUTE_NORMAL,
1247  0,
1248  FILE_OVERWRITE_IF,
1249  FILE_SYNCHRONOUS_IO_NONALERT | FILE_SEQUENTIAL_ONLY,
1250  NULL,
1251  0);
1252  if (!NT_SUCCESS(Status))
1253  {
1254  DPRINT1("NtCreateFile() failed (Status %lx)\n", Status);
1255  NtClose(PartitionHandle);
1256  return Status;
1257  }
1258 
1259  /* Install the FAT16 boot sector */
1260  Status = InstallFat16BootCode(SrcPath, FileHandle, PartitionHandle);
1261 
1262  /* Close the file and the partition */
1263  NtClose(FileHandle);
1264  NtClose(PartitionHandle);
1265 
1266  return Status;
1267 }
1268 
1269 static
1270 NTSTATUS
1271 InstallFat16BootCodeToDisk(
1272  IN PCWSTR SrcPath,
1273  IN PCWSTR RootPath)
1274 {
1275  NTSTATUS Status;
1276  UNICODE_STRING Name;
1277  OBJECT_ATTRIBUTES ObjectAttributes;
1278  IO_STATUS_BLOCK IoStatusBlock;
1279  HANDLE PartitionHandle;
1280 
1281  /*
1282  * Open the root partition from which the boot sector parameters will be
1283  * obtained; this is also where we will write the updated boot sector.
1284  * Remove any trailing backslash if needed.
1285  */
1286  RtlInitUnicodeString(&Name, RootPath);
1287  TrimTrailingPathSeparators_UStr(&Name);
1288 
1289  InitializeObjectAttributes(&ObjectAttributes,
1290  &Name,
1291  OBJ_CASE_INSENSITIVE,
1292  NULL,
1293  NULL);
1294 
1295  Status = NtOpenFile(&PartitionHandle,
1296  GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
1297  &ObjectAttributes,
1298  &IoStatusBlock,
1299  FILE_SHARE_READ | FILE_SHARE_WRITE,
1300  FILE_SYNCHRONOUS_IO_NONALERT | FILE_SEQUENTIAL_ONLY);
1301  if (!NT_SUCCESS(Status))
1302  return Status;
1303 
1304  /* Install the FAT16 boot sector */
1305  Status = InstallFat16BootCode(SrcPath, PartitionHandle, PartitionHandle);
1306 
1307  /* Close the partition */
1308  NtClose(PartitionHandle);
1309 
1310  return Status;
1311 }
1312 
1313 
1314 static
1315 NTSTATUS
1316 InstallFat32BootCode(
1317  IN PCWSTR SrcPath, // FAT32 bootsector source file (on the installation medium)
1318  IN HANDLE DstPath, // Where to save the bootsector built from the source + partition information
1319  IN HANDLE RootPartition) // Partition holding the (old) FAT32 information
1320 {
1321  NTSTATUS Status;
1322  UNICODE_STRING Name;
1323  OBJECT_ATTRIBUTES ObjectAttributes;
1324  IO_STATUS_BLOCK IoStatusBlock;
1325  HANDLE FileHandle;
1326  LARGE_INTEGER FileOffset;
1327  PFAT32_BOOTSECTOR OrigBootSector;
1328  PFAT32_BOOTSECTOR NewBootSector;
1329  USHORT BackupBootSector;
1330 
1331  /* Allocate a buffer for the original bootsector */
1332  OrigBootSector = RtlAllocateHeap(ProcessHeap, 0, SECTORSIZE);
1333  if (OrigBootSector == NULL)
1334  return STATUS_INSUFFICIENT_RESOURCES;
1335 
1336  /* Read the current boot sector into the buffer */
1337  FileOffset.QuadPart = 0ULL;
1338  Status = NtReadFile(RootPartition,
1339  NULL,
1340  NULL,
1341  NULL,
1342  &IoStatusBlock,
1343  OrigBootSector,
1344  SECTORSIZE,
1345  &FileOffset,
1346  NULL);
1347  if (!NT_SUCCESS(Status))
1348  {
1349  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1350  return Status;
1351  }
1352 
1353  /* Allocate a buffer for the new bootsector (2 sectors) */
1354  NewBootSector = RtlAllocateHeap(ProcessHeap, 0, 2 * SECTORSIZE);
1355  if (NewBootSector == NULL)
1356  {
1357  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1358  return STATUS_INSUFFICIENT_RESOURCES;
1359  }
1360 
1361  /* Read the new bootsector from SrcPath */
1362  RtlInitUnicodeString(&Name, SrcPath);
1363  InitializeObjectAttributes(&ObjectAttributes,
1364  &Name,
1365  OBJ_CASE_INSENSITIVE,
1366  NULL,
1367  NULL);
1368 
1369  Status = NtOpenFile(&FileHandle,
1370  GENERIC_READ | SYNCHRONIZE,
1371  &ObjectAttributes,
1372  &IoStatusBlock,
1373  FILE_SHARE_READ,
1374  FILE_SYNCHRONOUS_IO_NONALERT);
1375  if (!NT_SUCCESS(Status))
1376  {
1377  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1378  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1379  return Status;
1380  }
1381 
1382  FileOffset.QuadPart = 0ULL;
1383  Status = NtReadFile(FileHandle,
1384  NULL,
1385  NULL,
1386  NULL,
1387  &IoStatusBlock,
1388  NewBootSector,
1389  2 * SECTORSIZE,
1390  &FileOffset,
1391  NULL);
1392  NtClose(FileHandle);
1393  if (!NT_SUCCESS(Status))
1394  {
1395  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1396  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1397  return Status;
1398  }
1399 
1400  /* Adjust the bootsector (copy a part of the FAT32 BPB) */
1401  memcpy(&NewBootSector->OemName,
1402  &OrigBootSector->OemName,
1403  FIELD_OFFSET(FAT32_BOOTSECTOR, BootCodeAndData) -
1404  FIELD_OFFSET(FAT32_BOOTSECTOR, OemName));
1405 
1406  /*
1407  * We know we copy the boot code to a file only when DstPath != RootPartition,
1408  * otherwise the boot code is copied to the specified root partition.
1409  */
1410  if (DstPath != RootPartition)
1411  {
1412  /* Copy to a file: Disable the backup boot sector */
1413  NewBootSector->BackupBootSector = 0;
1414  }
1415  else
1416  {
1417  /* Copy to a disk: Get the location of the backup boot sector */
1418  BackupBootSector = OrigBootSector->BackupBootSector;
1419  }
1420 
1421  /* Free the original boot sector */
1422  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1423 
1424  /* Write the first sector of the new bootcode to DstPath sector 0 */
1425  FileOffset.QuadPart = 0ULL;
1426  Status = NtWriteFile(DstPath,
1427  NULL,
1428  NULL,
1429  NULL,
1430  &IoStatusBlock,
1431  NewBootSector,
1432  SECTORSIZE,
1433  &FileOffset,
1434  NULL);
1435  if (!NT_SUCCESS(Status))
1436  {
1437  DPRINT1("NtWriteFile() failed (Status %lx)\n", Status);
1438  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1439  return Status;
1440  }
1441 
1442  if (DstPath == RootPartition)
1443  {
1444  /* Copy to a disk: Write the backup boot sector */
1445  if ((BackupBootSector != 0x0000) && (BackupBootSector != 0xFFFF))
1446  {
1447  FileOffset.QuadPart = (ULONGLONG)((ULONG)BackupBootSector * SECTORSIZE);
1448  Status = NtWriteFile(DstPath,
1449  NULL,
1450  NULL,
1451  NULL,
1452  &IoStatusBlock,
1453  NewBootSector,
1454  SECTORSIZE,
1455  &FileOffset,
1456  NULL);
1457  if (!NT_SUCCESS(Status))
1458  {
1459  DPRINT1("NtWriteFile() failed (Status %lx)\n", Status);
1460  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1461  return Status;
1462  }
1463  }
1464  }
1465 
1466  /* Write the second sector of the new bootcode to boot disk sector 14 */
1467  // FileOffset.QuadPart = (ULONGLONG)(14 * SECTORSIZE);
1468  FileOffset.QuadPart = 14 * SECTORSIZE;
1469  Status = NtWriteFile(DstPath, // or really RootPartition ???
1470  NULL,
1471  NULL,
1472  NULL,
1473  &IoStatusBlock,
1474  ((PUCHAR)NewBootSector + SECTORSIZE),
1475  SECTORSIZE,
1476  &FileOffset,
1477  NULL);
1478  if (!NT_SUCCESS(Status))
1479  {
1480  DPRINT1("NtWriteFile() failed (Status %lx)\n", Status);
1481  }
1482 
1483  /* Free the new boot sector */
1484  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1485 
1486  return Status;
1487 }
1488 
1489 static
1490 NTSTATUS
1491 InstallFat32BootCodeToFile(
1492  IN PCWSTR SrcPath,
1493  IN PCWSTR DstPath,
1494  IN PCWSTR RootPath)
1495 {
1496  NTSTATUS Status;
1497  UNICODE_STRING Name;
1498  OBJECT_ATTRIBUTES ObjectAttributes;
1499  IO_STATUS_BLOCK IoStatusBlock;
1500  HANDLE PartitionHandle, FileHandle;
1501 
1502  /*
1503  * Open the root partition from which the boot sector parameters
1504  * will be obtained.
1505  * FIXME? It might be possible that we need to also open it for writing
1506  * access in case we really need to still write the second portion of
1507  * the boot sector ????
1508  *
1509  * Remove any trailing backslash if needed.
1510  */
1511  RtlInitUnicodeString(&Name, RootPath);
1512  TrimTrailingPathSeparators_UStr(&Name);
1513 
1514  InitializeObjectAttributes(&ObjectAttributes,
1515  &Name,
1516  OBJ_CASE_INSENSITIVE,
1517  NULL,
1518  NULL);
1519 
1520  Status = NtOpenFile(&PartitionHandle,
1521  GENERIC_READ | SYNCHRONIZE,
1522  &ObjectAttributes,
1523  &IoStatusBlock,
1524  FILE_SHARE_READ | FILE_SHARE_WRITE,
1525  FILE_SYNCHRONOUS_IO_NONALERT /* | FILE_SEQUENTIAL_ONLY */);
1526  if (!NT_SUCCESS(Status))
1527  return Status;
1528 
1529  /* Open or create the file where (the first sector of ????) the new bootsector will be saved */
1530  RtlInitUnicodeString(&Name, DstPath);
1531  InitializeObjectAttributes(&ObjectAttributes,
1532  &Name,
1533  OBJ_CASE_INSENSITIVE,
1534  NULL,
1535  NULL);
1536 
1537  Status = NtCreateFile(&FileHandle,
1538  GENERIC_WRITE | SYNCHRONIZE,
1539  &ObjectAttributes,
1540  &IoStatusBlock,
1541  NULL,
1542  FILE_ATTRIBUTE_NORMAL,
1543  0,
1544  FILE_SUPERSEDE, // FILE_OVERWRITE_IF, <- is used for FAT16
1545  FILE_SYNCHRONOUS_IO_NONALERT | FILE_SEQUENTIAL_ONLY,
1546  NULL,
1547  0);
1548  if (!NT_SUCCESS(Status))
1549  {
1550  DPRINT1("NtCreateFile() failed (Status %lx)\n", Status);
1551  NtClose(PartitionHandle);
1552  return Status;
1553  }
1554 
1555  /* Install the FAT32 boot sector */
1556  Status = InstallFat32BootCode(SrcPath, FileHandle, PartitionHandle);
1557 
1558  /* Close the file and the partition */
1559  NtClose(FileHandle);
1560  NtClose(PartitionHandle);
1561 
1562  return Status;
1563 }
1564 
1565 static
1566 NTSTATUS
1567 InstallFat32BootCodeToDisk(
1568  IN PCWSTR SrcPath,
1569  IN PCWSTR RootPath)
1570 {
1571  NTSTATUS Status;
1572  UNICODE_STRING Name;
1573  OBJECT_ATTRIBUTES ObjectAttributes;
1574  IO_STATUS_BLOCK IoStatusBlock;
1575  HANDLE PartitionHandle;
1576 
1577  /*
1578  * Open the root partition from which the boot sector parameters will be
1579  * obtained; this is also where we will write the updated boot sector.
1580  * Remove any trailing backslash if needed.
1581  */
1582  RtlInitUnicodeString(&Name, RootPath);
1583  TrimTrailingPathSeparators_UStr(&Name);
1584 
1585  InitializeObjectAttributes(&ObjectAttributes,
1586  &Name,
1587  OBJ_CASE_INSENSITIVE,
1588  NULL,
1589  NULL);
1590 
1591  Status = NtOpenFile(&PartitionHandle,
1592  GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE,
1593  &ObjectAttributes,
1594  &IoStatusBlock,
1595  FILE_SHARE_READ | FILE_SHARE_WRITE,
1596  FILE_SYNCHRONOUS_IO_NONALERT /* | FILE_SEQUENTIAL_ONLY */);
1597  if (!NT_SUCCESS(Status))
1598  return Status;
1599 
1600  /* Install the FAT32 boot sector */
1601  Status = InstallFat32BootCode(SrcPath, PartitionHandle, PartitionHandle);
1602 
1603  /* Close the partition */
1604  NtClose(PartitionHandle);
1605 
1606  return Status;
1607 }
1608 
1609 static
1610 NTSTATUS
1611 InstallBtrfsBootCodeToDisk(
1612  IN PCWSTR SrcPath,
1613  IN PCWSTR RootPath)
1614 {
1615  NTSTATUS Status;
1616  NTSTATUS LockStatus;
1617  UNICODE_STRING Name;
1618  OBJECT_ATTRIBUTES ObjectAttributes;
1619  IO_STATUS_BLOCK IoStatusBlock;
1620  HANDLE FileHandle;
1621  LARGE_INTEGER FileOffset;
1622 // PEXT2_BOOTSECTOR OrigBootSector;
1623  PBTRFS_BOOTSECTOR NewBootSector;
1624  // USHORT BackupBootSector;
1625  PARTITION_INFORMATION_EX PartInfo;
1626 
1627 #if 0
1628  /* Allocate buffer for original bootsector */
1629  OrigBootSector = RtlAllocateHeap(ProcessHeap, 0, SECTORSIZE);
1630  if (OrigBootSector == NULL)
1631  return STATUS_INSUFFICIENT_RESOURCES;
1632 
1633  /* Open the root partition - Remove any trailing backslash if needed */
1634  RtlInitUnicodeString(&Name, RootPath);
1635  TrimTrailingPathSeparators_UStr(&Name);
1636 
1637  InitializeObjectAttributes(&ObjectAttributes,
1638  &Name,
1639  OBJ_CASE_INSENSITIVE,
1640  NULL,
1641  NULL);
1642 
1643  Status = NtOpenFile(&FileHandle,
1644  GENERIC_READ | SYNCHRONIZE,
1645  &ObjectAttributes,
1646  &IoStatusBlock,
1647  FILE_SHARE_READ | FILE_SHARE_WRITE,
1648  FILE_SYNCHRONOUS_IO_NONALERT);
1649  if (!NT_SUCCESS(Status))
1650  {
1651  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1652  return Status;
1653  }
1654 
1655  /* Read current boot sector into buffer */
1656  FileOffset.QuadPart = 0ULL;
1657  Status = NtReadFile(FileHandle,
1658  NULL,
1659  NULL,
1660  NULL,
1661  &IoStatusBlock,
1662  OrigBootSector,
1663  SECTORSIZE,
1664  &FileOffset,
1665  NULL);
1666  NtClose(FileHandle);
1667  if (!NT_SUCCESS(Status))
1668  {
1669  RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1670  return Status;
1671  }
1672 #endif
1673 
1674  /* Allocate buffer for new bootsector */
1675  NewBootSector = RtlAllocateHeap(ProcessHeap, 0, sizeof(BTRFS_BOOTSECTOR));
1676  if (NewBootSector == NULL)
1677  {
1678  // RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1679  return STATUS_INSUFFICIENT_RESOURCES;
1680  }
1681 
1682  /* Read new bootsector from SrcPath */
1683  RtlInitUnicodeString(&Name, SrcPath);
1684 
1685  InitializeObjectAttributes(&ObjectAttributes,
1686  &Name,
1687  OBJ_CASE_INSENSITIVE,
1688  NULL,
1689  NULL);
1690 
1691  Status = NtOpenFile(&FileHandle,
1692  GENERIC_READ | SYNCHRONIZE,
1693  &ObjectAttributes,
1694  &IoStatusBlock,
1695  FILE_SHARE_READ,
1696  FILE_SYNCHRONOUS_IO_NONALERT);
1697  if (!NT_SUCCESS(Status))
1698  {
1699  // RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1700  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1701  return Status;
1702  }
1703 
1704  Status = NtReadFile(FileHandle,
1705  NULL,
1706  NULL,
1707  NULL,
1708  &IoStatusBlock,
1709  NewBootSector,
1710  sizeof(BTRFS_BOOTSECTOR),
1711  NULL,
1712  NULL);
1713  NtClose(FileHandle);
1714  if (!NT_SUCCESS(Status))
1715  {
1716  // RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1717  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1718  return Status;
1719  }
1720 
1721 #if 0
1722  /* Adjust bootsector (copy a part of the FAT32 BPB) */
1723  memcpy(&NewBootSector->OemName,
1724  &OrigBootSector->OemName,
1725  FIELD_OFFSET(FAT32_BOOTSECTOR, BootCodeAndData) -
1726  FIELD_OFFSET(FAT32_BOOTSECTOR, OemName));
1727 
1728  /* Get the location of the backup boot sector */
1729  BackupBootSector = OrigBootSector->BackupBootSector;
1730 
1731  /* Free the original boot sector */
1732  // RtlFreeHeap(ProcessHeap, 0, OrigBootSector);
1733 #endif
1734 
1735  /* Open the root partition - Remove any trailing backslash if needed */
1736  RtlInitUnicodeString(&Name, RootPath);
1737  TrimTrailingPathSeparators_UStr(&Name);
1738 
1739  InitializeObjectAttributes(&ObjectAttributes,
1740  &Name,
1741  OBJ_CASE_INSENSITIVE,
1742  NULL,
1743  NULL);
1744 
1745  Status = NtOpenFile(&FileHandle,
1746  GENERIC_WRITE | SYNCHRONIZE,
1747  &ObjectAttributes,
1748  &IoStatusBlock,
1749  FILE_SHARE_READ | FILE_SHARE_WRITE,
1750  FILE_SYNCHRONOUS_IO_NONALERT | FILE_SEQUENTIAL_ONLY);
1751  if (!NT_SUCCESS(Status))
1752  {
1753  DPRINT1("NtOpenFile() failed (Status %lx)\n", Status);
1754  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1755  return Status;
1756  }
1757 
1758  /*
1759  * The BTRFS driver requires the volume to be locked in order to modify
1760  * the first sectors of the partition, even though they are outside the
1761  * file-system space / in the reserved area (they are situated before
1762  * the super-block at 0x1000) and is in principle allowed by the NT
1763  * storage stack.
1764  * So we lock here in order to write the bootsector at sector 0.
1765  * If locking fails, we ignore and continue nonetheless.
1766  */
1767  LockStatus = NtFsControlFile(FileHandle,
1768  NULL,
1769  NULL,
1770  NULL,
1771  &IoStatusBlock,
1772  FSCTL_LOCK_VOLUME,
1773  NULL,
1774  0,
1775  NULL,
1776  0);
1777  if (!NT_SUCCESS(LockStatus))
1778  {
1779  DPRINT1("WARNING: Failed to lock BTRFS volume for writing bootsector! Operations may fail! (Status 0x%lx)\n", LockStatus);
1780  }
1781 
1782  /* Obtaining partition info and writing it to bootsector */
1783  Status = NtDeviceIoControlFile(FileHandle,
1784  NULL,
1785  NULL,
1786  NULL,
1787  &IoStatusBlock,
1788  IOCTL_DISK_GET_PARTITION_INFO_EX,
1789  NULL,
1790  0,
1791  &PartInfo,
1792  sizeof(PartInfo));
1793  if (!NT_SUCCESS(Status))
1794  {
1795  DPRINT1("IOCTL_DISK_GET_PARTITION_INFO_EX failed (Status %lx)\n", Status);
1796  goto Quit;
1797  }
1798 
1799  /* Write new bootsector to RootPath */
1800 
1801  NewBootSector->PartitionStartLBA = PartInfo.StartingOffset.QuadPart / SECTORSIZE;
1802 
1803  /* Write sector 0 */
1804  FileOffset.QuadPart = 0ULL;
1805  Status = NtWriteFile(FileHandle,
1806  NULL,
1807  NULL,
1808  NULL,
1809  &IoStatusBlock,
1810  NewBootSector,
1811  sizeof(BTRFS_BOOTSECTOR),
1812  &FileOffset,
1813  NULL);
1814  if (!NT_SUCCESS(Status))
1815  {
1816  DPRINT1("NtWriteFile() failed (Status %lx)\n", Status);
1817  goto Quit;
1818  }
1819 
1820 #if 0
1821  /* Write backup boot sector */
1822  if ((BackupBootSector != 0x0000) && (BackupBootSector != 0xFFFF))
1823  {
1824  FileOffset.QuadPart = (ULONGLONG)((ULONG)BackupBootSector * SECTORSIZE);
1825  Status = NtWriteFile(FileHandle,
1826  NULL,
1827  NULL,
1828  NULL,
1829  &IoStatusBlock,
1830  NewBootSector,
1831  SECTORSIZE,
1832  &FileOffset,
1833  NULL);
1834  if (!NT_SUCCESS(Status))
1835  {
1836  DPRINT1("NtWriteFile() failed (Status %lx)\n", Status);
1837  goto Quit;
1838  }
1839  }
1840 
1841  /* Write sector 14 */
1842  FileOffset.QuadPart = 14 * SECTORSIZE;
1843  Status = NtWriteFile(FileHandle,
1844  NULL,
1845  NULL,
1846  NULL,
1847  &IoStatusBlock,
1848  ((PUCHAR)NewBootSector + SECTORSIZE),
1849  SECTORSIZE,
1850  &FileOffset,
1851  NULL);
1852  if (!NT_SUCCESS(Status))
1853  {
1854  DPRINT1("NtWriteFile() failed (Status %lx)\n", Status);
1855  }
1856 #endif
1857 
1858 Quit:
1859  /* Unlock the volume */
1860  LockStatus = NtFsControlFile(FileHandle,
1861  NULL,
1862  NULL,
1863  NULL,
1864  &IoStatusBlock,
1865  FSCTL_UNLOCK_VOLUME,
1866  NULL,
1867  0,
1868  NULL,
1869  0);
1870  if (!NT_SUCCESS(LockStatus))
1871  {
1872  DPRINT1("Failed to unlock BTRFS volume (Status 0x%lx)\n", LockStatus);
1873  }
1874 
1875  /* Close the volume */
1876  NtClose(FileHandle);
1877 
1878  /* Free the new boot sector */
1879  RtlFreeHeap(ProcessHeap, 0, NewBootSector);
1880 
1881  return Status;
1882 }
1883 
1884 
1885 static
1886 NTSTATUS
1887 InstallFatBootcodeToPartition(
1888  IN PUNICODE_STRING SystemRootPath,
1889  IN PUNICODE_STRING SourceRootPath,
1890  IN PUNICODE_STRING DestinationArcPath,
1891  IN UCHAR PartitionType)
1892 {
1893  NTSTATUS Status;
1894  BOOLEAN DoesFreeLdrExist;
1895  WCHAR SrcPath[MAX_PATH];
1896  WCHAR DstPath[MAX_PATH];
1897 
1898  /* FAT or FAT32 partition */
1899  DPRINT("System path: '%wZ'\n", SystemRootPath);
1900 
1901  /* Copy FreeLoader to the system partition, always overwriting the older version */
1902  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\freeldr.sys");
1903  CombinePaths(DstPath, ARRAYSIZE(DstPath), 2, SystemRootPath->Buffer, L"freeldr.sys");
1904 
1905  DPRINT("Copy: %S ==> %S\n", SrcPath, DstPath);
1906  Status = SetupCopyFile(SrcPath, DstPath, FALSE);
1907  if (!NT_SUCCESS(Status))
1908  {
1909  DPRINT1("SetupCopyFile() failed (Status %lx)\n", Status);
1910  return Status;
1911  }
1912 
1913  /* Prepare for possibly updating 'freeldr.ini' */
1914  DoesFreeLdrExist = DoesFileExist_2(SystemRootPath->Buffer, L"freeldr.ini");
1915  if (DoesFreeLdrExist)
1916  {
1917  /* Update existing 'freeldr.ini' */
1918  DPRINT1("Update existing 'freeldr.ini'\n");
1919  Status = UpdateFreeLoaderIni(SystemRootPath->Buffer, DestinationArcPath->Buffer);
1920  if (!NT_SUCCESS(Status))
1921  {
1922  DPRINT1("UpdateFreeLoaderIni() failed (Status %lx)\n", Status);
1923  return Status;
1924  }
1925  }
1926 
1927  /* Check for NT and other bootloaders */
1928 
1929  // FIXME: Check for Vista+ bootloader!
1930  /*** Status = FindBootStore(PartitionHandle, NtLdr, &Version); ***/
1931  /*** Status = FindBootStore(PartitionHandle, BootMgr, &Version); ***/
1932  if (DoesFileExist_2(SystemRootPath->Buffer, L"NTLDR") == TRUE ||
1933  DoesFileExist_2(SystemRootPath->Buffer, L"BOOT.INI") == TRUE)
1934  {
1935  /* Search root directory for 'NTLDR' and 'BOOT.INI' */
1936  DPRINT1("Found Microsoft Windows NT/2000/XP boot loader\n");
1937 
1938  /* Create or update 'freeldr.ini' */
1939  if (DoesFreeLdrExist == FALSE)
1940  {
1941  /* Create new 'freeldr.ini' */
1942  DPRINT1("Create new 'freeldr.ini'\n");
1943  Status = CreateFreeLoaderIniForReactOS(SystemRootPath->Buffer, DestinationArcPath->Buffer);
1944  if (!NT_SUCCESS(Status))
1945  {
1946  DPRINT1("CreateFreeLoaderIniForReactOS() failed (Status %lx)\n", Status);
1947  return Status;
1948  }
1949 
1950  /* Install new bootcode into a file */
1951  CombinePaths(DstPath, ARRAYSIZE(DstPath), 2, SystemRootPath->Buffer, L"bootsect.ros");
1952 
1953  if (PartitionType == PARTITION_FAT32 ||
1954  PartitionType == PARTITION_FAT32_XINT13)
1955  {
1956  /* Install FAT32 bootcode */
1957  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\fat32.bin");
1958 
1959  DPRINT1("Install FAT32 bootcode: %S ==> %S\n", SrcPath, DstPath);
1960  Status = InstallFat32BootCodeToFile(SrcPath, DstPath,
1961  SystemRootPath->Buffer);
1962  if (!NT_SUCCESS(Status))
1963  {
1964  DPRINT1("InstallFat32BootCodeToFile() failed (Status %lx)\n", Status);
1965  return Status;
1966  }
1967  }
1968  else
1969  {
1970  /* Install FAT16 bootcode */
1971  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\fat.bin");
1972 
1973  DPRINT1("Install FAT bootcode: %S ==> %S\n", SrcPath, DstPath);
1974  Status = InstallFat16BootCodeToFile(SrcPath, DstPath,
1975  SystemRootPath->Buffer);
1976  if (!NT_SUCCESS(Status))
1977  {
1978  DPRINT1("InstallFat16BootCodeToFile() failed (Status %lx)\n", Status);
1979  return Status;
1980  }
1981  }
1982  }
1983 
1984  /* Update 'boot.ini' */
1985  /* Windows' NTLDR loads an external bootsector file when the specified drive
1986  letter is C:, otherwise it will interpret it as a boot DOS path specifier. */
1987  DPRINT1("Update 'boot.ini'\n");
1988  Status = UpdateBootIni(SystemRootPath->Buffer,
1989  L"C:\\bootsect.ros",
1990  L"\"ReactOS\"");
1991  if (!NT_SUCCESS(Status))
1992  {
1993  DPRINT1("UpdateBootIni() failed (Status %lx)\n", Status);
1994  return Status;
1995  }
1996  }
1997  else
1998  {
1999  /* Non-NT bootloaders: install our own bootloader */
2000 
2001  PCWSTR Section;
2002  PCWSTR Description;
2003  PCWSTR BootDrive;
2004  PCWSTR BootPartition;
2005  PCWSTR BootSector;
2006 
2007  /* Search for COMPAQ MS-DOS 1.x (1.11, 1.12, based on MS-DOS 1.25) boot loader */
2008  if (DoesFileExist_2(SystemRootPath->Buffer, L"IOSYS.COM") == TRUE ||
2009  DoesFileExist_2(SystemRootPath->Buffer, L"MSDOS.COM") == TRUE)
2010  {
2011  DPRINT1("Found COMPAQ MS-DOS 1.x (1.11, 1.12) / MS-DOS 1.25 boot loader\n");
2012 
2013  Section = L"CPQDOS";
2014  Description = L"\"COMPAQ MS-DOS 1.x / MS-DOS 1.25\"";
2015  BootDrive = L"hd0";
2016  BootPartition = L"1";
2017  BootSector = L"BOOTSECT.DOS";
2018  }
2019  else
2020  /* Search for Microsoft DOS or Windows 9x boot loader */
2021  if (DoesFileExist_2(SystemRootPath->Buffer, L"IO.SYS") == TRUE ||
2022  DoesFileExist_2(SystemRootPath->Buffer, L"MSDOS.SYS") == TRUE)
2023  // WINBOOT.SYS
2024  {
2025  DPRINT1("Found Microsoft DOS or Windows 9x boot loader\n");
2026 
2027  Section = L"MSDOS";
2028  Description = L"\"MS-DOS/Windows\"";
2029  BootDrive = L"hd0";
2030  BootPartition = L"1";
2031  BootSector = L"BOOTSECT.DOS";
2032  }
2033  else
2034  /* Search for IBM PC-DOS or DR-DOS 5.x boot loader */
2035  if (DoesFileExist_2(SystemRootPath->Buffer, L"IBMIO.COM" ) == TRUE || // Some people refer to this file instead of IBMBIO.COM...
2036  DoesFileExist_2(SystemRootPath->Buffer, L"IBMBIO.COM") == TRUE ||
2037  DoesFileExist_2(SystemRootPath->Buffer, L"IBMDOS.COM") == TRUE)
2038  {
2039  DPRINT1("Found IBM PC-DOS or DR-DOS 5.x or IBM OS/2 1.0\n");
2040 
2041  Section = L"IBMDOS";
2042  Description = L"\"IBM PC-DOS or DR-DOS 5.x or IBM OS/2 1.0\"";
2043  BootDrive = L"hd0";
2044  BootPartition = L"1";
2045  BootSector = L"BOOTSECT.DOS";
2046  }
2047  else
2048  /* Search for DR-DOS 3.x boot loader */
2049  if (DoesFileExist_2(SystemRootPath->Buffer, L"DRBIOS.SYS") == TRUE ||
2050  DoesFileExist_2(SystemRootPath->Buffer, L"DRBDOS.SYS") == TRUE)
2051  {
2052  DPRINT1("Found DR-DOS 3.x\n");
2053 
2054  Section = L"DRDOS";
2055  Description = L"\"DR-DOS 3.x\"";
2056  BootDrive = L"hd0";
2057  BootPartition = L"1";
2058  BootSector = L"BOOTSECT.DOS";
2059  }
2060  else
2061  /* Search for Dell Real-Mode Kernel (DRMK) OS */
2062  if (DoesFileExist_2(SystemRootPath->Buffer, L"DELLBIO.BIN") == TRUE ||
2063  DoesFileExist_2(SystemRootPath->Buffer, L"DELLRMK.BIN") == TRUE)
2064  {
2065  DPRINT1("Found Dell Real-Mode Kernel OS\n");
2066 
2067  Section = L"DRMK";
2068  Description = L"\"Dell Real-Mode Kernel OS\"";
2069  BootDrive = L"hd0";
2070  BootPartition = L"1";
2071  BootSector = L"BOOTSECT.DOS";
2072  }
2073  else
2074  /* Search for MS OS/2 1.x */
2075  if (DoesFileExist_2(SystemRootPath->Buffer, L"OS2BOOT.COM") == TRUE ||
2076  DoesFileExist_2(SystemRootPath->Buffer, L"OS2BIO.COM" ) == TRUE ||
2077  DoesFileExist_2(SystemRootPath->Buffer, L"OS2DOS.COM" ) == TRUE)
2078  {
2079  DPRINT1("Found MS OS/2 1.x\n");
2080 
2081  Section = L"MSOS2";
2082  Description = L"\"MS OS/2 1.x\"";
2083  BootDrive = L"hd0";
2084  BootPartition = L"1";
2085  BootSector = L"BOOTSECT.OS2";
2086  }
2087  else
2088  /* Search for MS or IBM OS/2 */
2089  if (DoesFileExist_2(SystemRootPath->Buffer, L"OS2BOOT") == TRUE ||
2090  DoesFileExist_2(SystemRootPath->Buffer, L"OS2LDR" ) == TRUE ||
2091  DoesFileExist_2(SystemRootPath->Buffer, L"OS2KRNL") == TRUE)
2092  {
2093  DPRINT1("Found MS/IBM OS/2\n");
2094 
2095  Section = L"IBMOS2";
2096  Description = L"\"MS/IBM OS/2\"";
2097  BootDrive = L"hd0";
2098  BootPartition = L"1";
2099  BootSector = L"BOOTSECT.OS2";
2100  }
2101  else
2102  /* Search for FreeDOS boot loader */
2103  if (DoesFileExist_2(SystemRootPath->Buffer, L"kernel.sys") == TRUE)
2104  {
2105  DPRINT1("Found FreeDOS boot loader\n");
2106 
2107  Section = L"FDOS";
2108  Description = L"\"FreeDOS\"";
2109  BootDrive = L"hd0";
2110  BootPartition = L"1";
2111  BootSector = L"BOOTSECT.DOS";
2112  }
2113  else
2114  {
2115  /* No or unknown boot loader */
2116  DPRINT1("No or unknown boot loader found\n");
2117 
2118  Section = L"Unknown";
2119  Description = L"\"Unknown Operating System\"";
2120  BootDrive = L"hd0";
2121  BootPartition = L"1";
2122  BootSector = L"BOOTSECT.OLD";
2123  }
2124 
2125  /* Create or update 'freeldr.ini' */
2126  if (DoesFreeLdrExist == FALSE)
2127  {
2128  /* Create new 'freeldr.ini' */
2129  DPRINT1("Create new 'freeldr.ini'\n");
2130 
2131  if (IsThereAValidBootSector(SystemRootPath->Buffer))
2132  {
2133  Status = CreateFreeLoaderIniForReactOSAndBootSector(
2134  SystemRootPath->Buffer, DestinationArcPath->Buffer,
2135  Section, Description,
2136  BootDrive, BootPartition, BootSector);
2137  if (!NT_SUCCESS(Status))
2138  {
2139  DPRINT1("CreateFreeLoaderIniForReactOSAndBootSector() failed (Status %lx)\n", Status);
2140  return Status;
2141  }
2142 
2143  /* Save current bootsector */
2144  CombinePaths(DstPath, ARRAYSIZE(DstPath), 2, SystemRootPath->Buffer, BootSector);
2145 
2146  DPRINT1("Save bootsector: %S ==> %S\n", SystemRootPath->Buffer, DstPath);
2147  Status = SaveBootSector(SystemRootPath->Buffer, DstPath, SECTORSIZE);
2148  if (!NT_SUCCESS(Status))
2149  {
2150  DPRINT1("SaveBootSector() failed (Status %lx)\n", Status);
2151  return Status;
2152  }
2153  }
2154  else
2155  {
2156  Status = CreateFreeLoaderIniForReactOS(SystemRootPath->Buffer, DestinationArcPath->Buffer);
2157  if (!NT_SUCCESS(Status))
2158  {
2159  DPRINT1("CreateFreeLoaderIniForReactOS() failed (Status %lx)\n", Status);
2160  return Status;
2161  }
2162  }
2163 
2164  /* Install new bootsector on the disk */
2165  if (PartitionType == PARTITION_FAT32 ||
2166  PartitionType == PARTITION_FAT32_XINT13)
2167  {
2168  /* Install FAT32 bootcode */
2169  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\fat32.bin");
2170 
2171  DPRINT1("Install FAT32 bootcode: %S ==> %S\n", SrcPath, SystemRootPath->Buffer);
2172  Status = InstallFat32BootCodeToDisk(SrcPath, SystemRootPath->Buffer);
2173  if (!NT_SUCCESS(Status))
2174  {
2175  DPRINT1("InstallFat32BootCodeToDisk() failed (Status %lx)\n", Status);
2176  return Status;
2177  }
2178  }
2179  else
2180  {
2181  /* Install FAT16 bootcode */
2182  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\fat.bin");
2183 
2184  DPRINT1("Install FAT16 bootcode: %S ==> %S\n", SrcPath, SystemRootPath->Buffer);
2185  Status = InstallFat16BootCodeToDisk(SrcPath, SystemRootPath->Buffer);
2186  if (!NT_SUCCESS(Status))
2187  {
2188  DPRINT1("InstallFat16BootCodeToDisk() failed (Status %lx)\n", Status);
2189  return Status;
2190  }
2191  }
2192  }
2193  }
2194 
2195  return STATUS_SUCCESS;
2196 }
2197 
2198 static
2199 NTSTATUS
2200 InstallBtrfsBootcodeToPartition(
2201  IN PUNICODE_STRING SystemRootPath,
2202  IN PUNICODE_STRING SourceRootPath,
2203  IN PUNICODE_STRING DestinationArcPath,
2204  IN UCHAR PartitionType)
2205 {
2206  NTSTATUS Status;
2207  BOOLEAN DoesFreeLdrExist;
2208  WCHAR SrcPath[MAX_PATH];
2209  WCHAR DstPath[MAX_PATH];
2210 
2211  /* BTRFS partition */
2212  DPRINT("System path: '%wZ'\n", SystemRootPath);
2213 
2214  /* Copy FreeLoader to the system partition, always overwriting the older version */
2215  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\freeldr.sys");
2216  CombinePaths(DstPath, ARRAYSIZE(DstPath), 2, SystemRootPath->Buffer, L"freeldr.sys");
2217 
2218  DPRINT("Copy: %S ==> %S\n", SrcPath, DstPath);
2219  Status = SetupCopyFile(SrcPath, DstPath, FALSE);
2220  if (!NT_SUCCESS(Status))
2221  {
2222  DPRINT1("SetupCopyFile() failed (Status %lx)\n", Status);
2223  return Status;
2224  }
2225 
2226  /* Prepare for possibly updating 'freeldr.ini' */
2227  DoesFreeLdrExist = DoesFileExist_2(SystemRootPath->Buffer, L"freeldr.ini");
2228  if (DoesFreeLdrExist)
2229  {
2230  /* Update existing 'freeldr.ini' */
2231  DPRINT1("Update existing 'freeldr.ini'\n");
2232  Status = UpdateFreeLoaderIni(SystemRootPath->Buffer, DestinationArcPath->Buffer);
2233  if (!NT_SUCCESS(Status))
2234  {
2235  DPRINT1("UpdateFreeLoaderIni() failed (Status %lx)\n", Status);
2236  return Status;
2237  }
2238  }
2239 
2240  /* Check for *nix bootloaders */
2241 
2242  /* Create or update 'freeldr.ini' */
2243  if (DoesFreeLdrExist == FALSE)
2244  {
2245  /* Create new 'freeldr.ini' */
2246  DPRINT1("Create new 'freeldr.ini'\n");
2247 
2248  /* Certainly SysLinux, GRUB, LILO... or an unknown boot loader */
2249  DPRINT1("*nix or unknown boot loader found\n");
2250 
2251  if (IsThereAValidBootSector(SystemRootPath->Buffer))
2252  {
2253  PCWSTR BootSector = L"BOOTSECT.OLD";
2254 
2255  Status = CreateFreeLoaderIniForReactOSAndBootSector(
2256  SystemRootPath->Buffer, DestinationArcPath->Buffer,
2257  L"Linux", L"\"Linux\"",
2258  L"hd0", L"1", BootSector);
2259  if (!NT_SUCCESS(Status))
2260  {
2261  DPRINT1("CreateFreeLoaderIniForReactOSAndBootSector() failed (Status %lx)\n", Status);
2262  return Status;
2263  }
2264 
2265  /* Save current bootsector */
2266  CombinePaths(DstPath, ARRAYSIZE(DstPath), 2, SystemRootPath->Buffer, BootSector);
2267 
2268  DPRINT1("Save bootsector: %S ==> %S\n", SystemRootPath->Buffer, DstPath);
2269  Status = SaveBootSector(SystemRootPath->Buffer, DstPath, sizeof(BTRFS_BOOTSECTOR));
2270  if (!NT_SUCCESS(Status))
2271  {
2272  DPRINT1("SaveBootSector() failed (Status %lx)\n", Status);
2273  return Status;
2274  }
2275  }
2276  else
2277  {
2278  Status = CreateFreeLoaderIniForReactOS(SystemRootPath->Buffer, DestinationArcPath->Buffer);
2279  if (!NT_SUCCESS(Status))
2280  {
2281  DPRINT1("CreateFreeLoaderIniForReactOS() failed (Status %lx)\n", Status);
2282  return Status;
2283  }
2284  }
2285 
2286  /* Install new bootsector on the disk */
2287  // if (PartitionType == PARTITION_EXT2)
2288  {
2289  /* Install BTRFS bootcode */
2290  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\btrfs.bin");
2291 
2292  DPRINT1("Install BTRFS bootcode: %S ==> %S\n", SrcPath, SystemRootPath->Buffer);
2293  Status = InstallBtrfsBootCodeToDisk(SrcPath, SystemRootPath->Buffer);
2294  if (!NT_SUCCESS(Status))
2295  {
2296  DPRINT1("InstallBtrfsBootCodeToDisk() failed (Status %lx)\n", Status);
2297  return Status;
2298  }
2299  }
2300  }
2301 
2302  return STATUS_SUCCESS;
2303 }
2304 
2305 
2306 NTSTATUS
2307 InstallVBRToPartition(
2308  IN PUNICODE_STRING SystemRootPath,
2309  IN PUNICODE_STRING SourceRootPath,
2310  IN PUNICODE_STRING DestinationArcPath,
2311  IN UCHAR PartitionType)
2312 {
2313  switch (PartitionType)
2314  {
2315  case PARTITION_FAT_12:
2316  case PARTITION_FAT_16:
2317  case PARTITION_HUGE:
2318  case PARTITION_XINT13:
2319  case PARTITION_FAT32:
2320  case PARTITION_FAT32_XINT13:
2321  {
2322  return InstallFatBootcodeToPartition(SystemRootPath,
2323  SourceRootPath,
2324  DestinationArcPath,
2325  PartitionType);
2326  }
2327 
2328  case PARTITION_LINUX:
2329  {
2330  return InstallBtrfsBootcodeToPartition(SystemRootPath,
2331  SourceRootPath,
2332  DestinationArcPath,
2333  PartitionType);
2334  }
2335 
2336  case PARTITION_IFS:
2337  DPRINT1("Partitions of type NTFS or HPFS are not supported yet!\n");
2338  break;
2339 
2340  default:
2341  DPRINT1("PartitionType 0x%02X unknown!\n", PartitionType);
2342  break;
2343  }
2344 
2345  return STATUS_UNSUCCESSFUL;
2346 }
2347 
2348 
2349 NTSTATUS
2350 InstallFatBootcodeToFloppy(
2351  IN PUNICODE_STRING SourceRootPath,
2352  IN PUNICODE_STRING DestinationArcPath)
2353 {
2354  static const PCWSTR FloppyDevice = L"\\Device\\Floppy0\\";
2355 
2356  NTSTATUS Status;
2357  WCHAR SrcPath[MAX_PATH];
2358  WCHAR DstPath[MAX_PATH];
2359 
2360  /* Verify that the floppy disk is accessible */
2361  if (DoesDirExist(NULL, FloppyDevice) == FALSE)
2362  return STATUS_DEVICE_NOT_READY;
2363 
2364  /* Format the floppy disk */
2365  // FormatPartition(...)
2366  Status = FormatFileSystem(FloppyDevice,
2367  L"FAT",
2368  FMIFS_FLOPPY,
2369  NULL,
2370  TRUE,
2371  0,
2372  NULL);
2373  if (!NT_SUCCESS(Status))
2374  {
2375  if (Status == STATUS_NOT_SUPPORTED)
2376  DPRINT1("FAT FS non existent on this system?!\n");
2377  else
2378  DPRINT1("VfatFormat() failed (Status %lx)\n", Status);
2379 
2380  return Status;
2381  }
2382 
2383  /* Copy FreeLoader to the boot partition */
2384  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\freeldr.sys");
2385  CombinePaths(DstPath, ARRAYSIZE(DstPath), 2, FloppyDevice, L"freeldr.sys");
2386 
2387  DPRINT("Copy: %S ==> %S\n", SrcPath, DstPath);
2388  Status = SetupCopyFile(SrcPath, DstPath, FALSE);
2389  if (!NT_SUCCESS(Status))
2390  {
2391  DPRINT1("SetupCopyFile() failed (Status %lx)\n", Status);
2392  return Status;
2393  }
2394 
2395  /* Create new 'freeldr.ini' */
2396  DPRINT("Create new 'freeldr.ini'\n");
2397  Status = CreateFreeLoaderIniForReactOS(FloppyDevice, DestinationArcPath->Buffer);
2398  if (!NT_SUCCESS(Status))
2399  {
2400  DPRINT1("CreateFreeLoaderIniForReactOS() failed (Status %lx)\n", Status);
2401  return Status;
2402  }
2403 
2404  /* Install FAT12 boosector */
2405  CombinePaths(SrcPath, ARRAYSIZE(SrcPath), 2, SourceRootPath->Buffer, L"\\loader\\fat.bin");
2406  CombinePaths(DstPath, ARRAYSIZE(DstPath), 1, FloppyDevice);
2407 
2408  DPRINT("Install FAT bootcode: %S ==> %S\n", SrcPath, DstPath);
2409  Status = InstallFat12BootCodeToFloppy(SrcPath, DstPath);
2410  if (!NT_SUCCESS(Status))
2411  {
2412  DPRINT1("InstallFat12BootCodeToFloppy() failed (Status %lx)\n", Status);
2413  return Status;
2414  }
2415 
2416  return STATUS_SUCCESS;
2417 }
2418 
2419 /* EOF */
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Definition: typedefs.h:254
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