mirror of
https://github.com/reactos/reactos.git
synced 2024-08-07 19:58:21 +00:00
Fix issue #4673 ("Misrepresented license in FreeLDR"), Robert Millan (rmh.reactos at aybabtu.com).
svn path=/trunk/; revision=42541
This commit is contained in:
Dmitry Gorbachev
parent
3e5c0bc6aa
commit
7c7fefd8d3
|
|
@ -45,13 +45,13 @@ BOOLEAN Ext2CopyIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInLis
|
|||
BOOLEAN Ext2CopyDoubleIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInList, ULONG BlockCount, ULONG DoubleIndirectBlock);
|
||||
BOOLEAN Ext2CopyTripleIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInList, ULONG BlockCount, ULONG TripleIndirectBlock);
|
||||
|
||||
GEOMETRY Ext2DiskGeometry; // Ext2 file system disk geometry
|
||||
GEOMETRY Ext2DiskGeometry; // Ext2 file system disk geometry
|
||||
|
||||
PEXT2_SUPER_BLOCK Ext2SuperBlock = NULL; // Ext2 file system super block
|
||||
PEXT2_GROUP_DESC Ext2GroupDescriptors = NULL; // Ext2 file system group descriptors
|
||||
|
||||
UCHAR Ext2DriveNumber = 0; // Ext2 file system drive number
|
||||
ULONGLONG Ext2VolumeStartSector = 0; // Ext2 file system starting sector
|
||||
ULONGLONG Ext2VolumeStartSector = 0; // Ext2 file system starting sector
|
||||
ULONG Ext2BlockSizeInBytes = 0; // Block size in bytes
|
||||
ULONG Ext2BlockSizeInSectors = 0; // Block size in sectors
|
||||
ULONG Ext2FragmentSizeInBytes = 0; // Fragment size in bytes
|
||||
|
|
@ -106,13 +106,13 @@ PEXT2_FILE_INFO Ext2OpenFile(PCSTR FileName)
|
|||
{
|
||||
EXT2_FILE_INFO TempExt2FileInfo;
|
||||
PEXT2_FILE_INFO FileHandle;
|
||||
CHAR SymLinkPath[EXT3_NAME_LEN];
|
||||
CHAR FullPath[EXT3_NAME_LEN * 2];
|
||||
ULONG Index;
|
||||
CHAR SymLinkPath[EXT2_NAME_LEN];
|
||||
CHAR FullPath[EXT2_NAME_LEN * 2];
|
||||
ULONG Index;
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2OpenFile() FileName = %s\n", FileName);
|
||||
|
||||
RtlZeroMemory(SymLinkPath, EXT3_NAME_LEN);
|
||||
RtlZeroMemory(SymLinkPath, sizeof(SymLinkPath));
|
||||
|
||||
// Lookup the file in the file system
|
||||
if (!Ext2LookupFile(FileName, &TempExt2FileInfo))
|
||||
|
|
@ -122,7 +122,7 @@ PEXT2_FILE_INFO Ext2OpenFile(PCSTR FileName)
|
|||
|
||||
// If we got a symbolic link then fix up the path
|
||||
// and re-call this function
|
||||
if ((TempExt2FileInfo.Inode.i_mode & EXT2_S_IFMT) == EXT2_S_IFLNK)
|
||||
if ((TempExt2FileInfo.Inode.mode & EXT2_S_IFMT) == EXT2_S_IFLNK)
|
||||
{
|
||||
DPRINTM(DPRINT_FILESYSTEM, "File is a symbolic link\n");
|
||||
|
||||
|
|
@ -207,12 +207,12 @@ PEXT2_FILE_INFO Ext2OpenFile(PCSTR FileName)
|
|||
*/
|
||||
BOOLEAN Ext2LookupFile(PCSTR FileName, PEXT2_FILE_INFO Ext2FileInfoPointer)
|
||||
{
|
||||
UINT32 i;
|
||||
ULONG NumberOfPathParts;
|
||||
CHAR PathPart[261];
|
||||
PVOID DirectoryBuffer;
|
||||
ULONG DirectoryInode = EXT3_ROOT_INO;
|
||||
EXT2_INODE InodeData;
|
||||
UINT32 i;
|
||||
ULONG NumberOfPathParts;
|
||||
CHAR PathPart[261];
|
||||
PVOID DirectoryBuffer;
|
||||
ULONG DirectoryInode = EXT2_ROOT_INO;
|
||||
EXT2_INODE InodeData;
|
||||
EXT2_DIR_ENTRY DirectoryEntry;
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2LookupFile() FileName = %s\n", FileName);
|
||||
|
|
@ -269,8 +269,8 @@ BOOLEAN Ext2LookupFile(PCSTR FileName, PEXT2_FILE_INFO Ext2FileInfoPointer)
|
|||
return FALSE;
|
||||
}
|
||||
|
||||
if (((InodeData.i_mode & EXT2_S_IFMT) != EXT2_S_IFREG) &&
|
||||
((InodeData.i_mode & EXT2_S_IFMT) != EXT2_S_IFLNK))
|
||||
if (((InodeData.mode & EXT2_S_IFMT) != EXT2_S_IFREG) &&
|
||||
((InodeData.mode & EXT2_S_IFMT) != EXT2_S_IFLNK))
|
||||
{
|
||||
FileSystemError("Inode is not a regular file or symbolic link.");
|
||||
return FALSE;
|
||||
|
|
@ -282,8 +282,8 @@ BOOLEAN Ext2LookupFile(PCSTR FileName, PEXT2_FILE_INFO Ext2FileInfoPointer)
|
|||
// If it's a regular file or a regular symbolic link
|
||||
// then get the block pointer list otherwise it must
|
||||
// be a fast symbolic link which doesn't have a block list
|
||||
if (((InodeData.i_mode & EXT2_S_IFMT) == EXT2_S_IFREG) ||
|
||||
((InodeData.i_mode & EXT2_S_IFMT) == EXT2_S_IFLNK && InodeData.i_size > FAST_SYMLINK_MAX_NAME_SIZE))
|
||||
if (((InodeData.mode & EXT2_S_IFMT) == EXT2_S_IFREG) ||
|
||||
((InodeData.mode & EXT2_S_IFMT) == EXT2_S_IFLNK && InodeData.size > FAST_SYMLINK_MAX_NAME_SIZE))
|
||||
{
|
||||
Ext2FileInfoPointer->FileBlockList = Ext2ReadBlockPointerList(&InodeData);
|
||||
|
||||
|
|
@ -306,7 +306,7 @@ BOOLEAN Ext2LookupFile(PCSTR FileName, PEXT2_FILE_INFO Ext2FileInfoPointer)
|
|||
|
||||
BOOLEAN Ext2SearchDirectoryBufferForFile(PVOID DirectoryBuffer, ULONG DirectorySize, PCHAR FileName, PEXT2_DIR_ENTRY DirectoryEntry)
|
||||
{
|
||||
ULONG CurrentOffset;
|
||||
ULONG CurrentOffset;
|
||||
PEXT2_DIR_ENTRY CurrentDirectoryEntry;
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2SearchDirectoryBufferForFile() DirectoryBuffer = 0x%x DirectorySize = %d FileName = %s\n", DirectoryBuffer, DirectorySize, FileName);
|
||||
|
|
@ -315,32 +315,32 @@ BOOLEAN Ext2SearchDirectoryBufferForFile(PVOID DirectoryBuffer, ULONG DirectoryS
|
|||
{
|
||||
CurrentDirectoryEntry = (PEXT2_DIR_ENTRY)((ULONG_PTR)DirectoryBuffer + CurrentOffset);
|
||||
|
||||
if (CurrentDirectoryEntry->rec_len == 0)
|
||||
if (CurrentDirectoryEntry->direntlen == 0)
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
if ((CurrentDirectoryEntry->rec_len + CurrentOffset) > DirectorySize)
|
||||
if ((CurrentDirectoryEntry->direntlen + CurrentOffset) > DirectorySize)
|
||||
{
|
||||
FileSystemError("Directory entry extends past end of directory file.");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Dumping directory entry at offset %d:\n", CurrentOffset);
|
||||
DbgDumpBuffer(DPRINT_FILESYSTEM, CurrentDirectoryEntry, CurrentDirectoryEntry->rec_len);
|
||||
DbgDumpBuffer(DPRINT_FILESYSTEM, CurrentDirectoryEntry, CurrentDirectoryEntry->direntlen);
|
||||
|
||||
if ((_strnicmp(FileName, CurrentDirectoryEntry->name, CurrentDirectoryEntry->name_len) == 0) &&
|
||||
(strlen(FileName) == CurrentDirectoryEntry->name_len))
|
||||
if ((_strnicmp(FileName, CurrentDirectoryEntry->name, CurrentDirectoryEntry->namelen) == 0) &&
|
||||
(strlen(FileName) == CurrentDirectoryEntry->namelen))
|
||||
{
|
||||
RtlCopyMemory(DirectoryEntry, CurrentDirectoryEntry, sizeof(EXT2_DIR_ENTRY));
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "EXT2 Directory Entry:\n");
|
||||
DPRINTM(DPRINT_FILESYSTEM, "inode = %d\n", DirectoryEntry->inode);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "rec_len = %d\n", DirectoryEntry->rec_len);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "name_len = %d\n", DirectoryEntry->name_len);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "file_type = %d\n", DirectoryEntry->file_type);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "direntlen = %d\n", DirectoryEntry->direntlen);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "namelen = %d\n", DirectoryEntry->namelen);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "filetype = %d\n", DirectoryEntry->filetype);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "name = ");
|
||||
for (CurrentOffset=0; CurrentOffset<DirectoryEntry->name_len; CurrentOffset++)
|
||||
for (CurrentOffset=0; CurrentOffset<DirectoryEntry->namelen; CurrentOffset++)
|
||||
{
|
||||
DPRINTM(DPRINT_FILESYSTEM, "%c", DirectoryEntry->name[CurrentOffset]);
|
||||
}
|
||||
|
|
@ -349,7 +349,7 @@ BOOLEAN Ext2SearchDirectoryBufferForFile(PVOID DirectoryBuffer, ULONG DirectoryS
|
|||
return TRUE;
|
||||
}
|
||||
|
||||
CurrentOffset += CurrentDirectoryEntry->rec_len;
|
||||
CurrentOffset += CurrentDirectoryEntry->direntlen;
|
||||
}
|
||||
|
||||
return FALSE;
|
||||
|
|
@ -380,7 +380,7 @@ BOOLEAN Ext2ReadFileBig(PEXT2_FILE_INFO Ext2FileInfo, ULONGLONG BytesToRead, ULO
|
|||
{
|
||||
// Block pointer list is NULL
|
||||
// so this better be a fast symbolic link or else
|
||||
if (((Ext2FileInfo->Inode.i_mode & EXT2_S_IFMT) != EXT2_S_IFLNK) ||
|
||||
if (((Ext2FileInfo->Inode.mode & EXT2_S_IFMT) != EXT2_S_IFLNK) ||
|
||||
(Ext2FileInfo->FileSize > FAST_SYMLINK_MAX_NAME_SIZE))
|
||||
{
|
||||
FileSystemError("Block pointer list is NULL and file is not a fast symbolic link.");
|
||||
|
|
@ -409,13 +409,13 @@ BOOLEAN Ext2ReadFileBig(PEXT2_FILE_INFO Ext2FileInfo, ULONGLONG BytesToRead, ULO
|
|||
|
||||
// Check if this is a fast symbolic link
|
||||
// if so then the read is easy
|
||||
if (((Ext2FileInfo->Inode.i_mode & EXT2_S_IFMT) == EXT2_S_IFLNK) &&
|
||||
if (((Ext2FileInfo->Inode.mode & EXT2_S_IFMT) == EXT2_S_IFLNK) &&
|
||||
(Ext2FileInfo->FileSize <= FAST_SYMLINK_MAX_NAME_SIZE))
|
||||
{
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Reading fast symbolic link data\n");
|
||||
|
||||
// Copy the data from the link
|
||||
RtlCopyMemory(Buffer, (PVOID)((ULONG_PTR)Ext2FileInfo->FilePointer + Ext2FileInfo->Inode.i_block), BytesToRead);
|
||||
RtlCopyMemory(Buffer, (PVOID)((ULONG_PTR)Ext2FileInfo->FilePointer + Ext2FileInfo->Inode.symlink), BytesToRead);
|
||||
|
||||
if (BytesRead != NULL)
|
||||
{
|
||||
|
|
@ -596,60 +596,47 @@ BOOLEAN Ext2ReadSuperBlock(VOID)
|
|||
RtlCopyMemory(Ext2SuperBlock, (PVOID)((ULONG_PTR)DISKREADBUFFER + 1024), 1024);
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Dumping super block:\n");
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_inodes_count: %d\n", Ext2SuperBlock->s_inodes_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_blocks_count: %d\n", Ext2SuperBlock->s_blocks_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_r_blocks_count: %d\n", Ext2SuperBlock->s_r_blocks_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_free_blocks_count: %d\n", Ext2SuperBlock->s_free_blocks_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_free_inodes_count: %d\n", Ext2SuperBlock->s_free_inodes_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_first_data_block: %d\n", Ext2SuperBlock->s_first_data_block);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_log_block_size: %d\n", Ext2SuperBlock->s_log_block_size);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_log_frag_size: %d\n", Ext2SuperBlock->s_log_frag_size);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_blocks_per_group: %d\n", Ext2SuperBlock->s_blocks_per_group);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_frags_per_group: %d\n", Ext2SuperBlock->s_frags_per_group);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_inodes_per_group: %d\n", Ext2SuperBlock->s_inodes_per_group);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_mtime: %d\n", Ext2SuperBlock->s_mtime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_wtime: %d\n", Ext2SuperBlock->s_wtime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_mnt_count: %d\n", Ext2SuperBlock->s_mnt_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_max_mnt_count: %d\n", Ext2SuperBlock->s_max_mnt_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_magic: 0x%x\n", Ext2SuperBlock->s_magic);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_state: %d\n", Ext2SuperBlock->s_state);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_errors: %d\n", Ext2SuperBlock->s_errors);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_minor_rev_level: %d\n", Ext2SuperBlock->s_minor_rev_level);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_lastcheck: %d\n", Ext2SuperBlock->s_lastcheck);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_checkinterval: %d\n", Ext2SuperBlock->s_checkinterval);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_creator_os: %d\n", Ext2SuperBlock->s_creator_os);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_rev_level: %d\n", Ext2SuperBlock->s_rev_level);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_def_resuid: %d\n", Ext2SuperBlock->s_def_resuid);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_def_resgid: %d\n", Ext2SuperBlock->s_def_resgid);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_first_ino: %d\n", Ext2SuperBlock->s_first_ino);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_inode_size: %d\n", Ext2SuperBlock->s_inode_size);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_block_group_nr: %d\n", Ext2SuperBlock->s_block_group_nr);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_feature_compat: 0x%x\n", Ext2SuperBlock->s_feature_compat);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_feature_incompat: 0x%x\n", Ext2SuperBlock->s_feature_incompat);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_feature_ro_compat: 0x%x\n", Ext2SuperBlock->s_feature_ro_compat);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_uuid[16] = 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", Ext2SuperBlock->s_uuid[0], Ext2SuperBlock->s_uuid[1], Ext2SuperBlock->s_uuid[2], Ext2SuperBlock->s_uuid[3], Ext2SuperBlock->s_uuid[4], Ext2SuperBlock->s_uuid[5], Ext2SuperBlock->s_uuid[6], Ext2SuperBlock->s_uuid[7], Ext2SuperBlock->s_uuid[8], Ext2SuperBlock->s_uuid[9], Ext2SuperBlock->s_uuid[10], Ext2SuperBlock->s_uuid[11], Ext2SuperBlock->s_uuid[12], Ext2SuperBlock->s_uuid[13], Ext2SuperBlock->s_uuid[14], Ext2SuperBlock->s_uuid[15]);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_volume_name[16] = '%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c'\n", Ext2SuperBlock->s_volume_name[0], Ext2SuperBlock->s_volume_name[1], Ext2SuperBlock->s_volume_name[2], Ext2SuperBlock->s_volume_name[3], Ext2SuperBlock->s_volume_name[4], Ext2SuperBlock->s_volume_name[5], Ext2SuperBlock->s_volume_name[6], Ext2SuperBlock->s_volume_name[7], Ext2SuperBlock->s_volume_name[8], Ext2SuperBlock->s_volume_name[9], Ext2SuperBlock->s_volume_name[10], Ext2SuperBlock->s_volume_name[11], Ext2SuperBlock->s_volume_name[12], Ext2SuperBlock->s_volume_name[13], Ext2SuperBlock->s_volume_name[14], Ext2SuperBlock->s_volume_name[15]);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_last_mounted[64]='%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c'\n", Ext2SuperBlock->s_last_mounted[0], Ext2SuperBlock->s_last_mounted[1], Ext2SuperBlock->s_last_mounted[2], Ext2SuperBlock->s_last_mounted[3], Ext2SuperBlock->s_last_mounted[4], Ext2SuperBlock->s_last_mounted[5], Ext2SuperBlock->s_last_mounted[6], Ext2SuperBlock->s_last_mounted[7], Ext2SuperBlock->s_last_mounted[8], Ext2SuperBlock->s_last_mounted[9],
|
||||
Ext2SuperBlock->s_last_mounted[10], Ext2SuperBlock->s_last_mounted[11], Ext2SuperBlock->s_last_mounted[12], Ext2SuperBlock->s_last_mounted[13], Ext2SuperBlock->s_last_mounted[14], Ext2SuperBlock->s_last_mounted[15], Ext2SuperBlock->s_last_mounted[16], Ext2SuperBlock->s_last_mounted[17], Ext2SuperBlock->s_last_mounted[18], Ext2SuperBlock->s_last_mounted[19],
|
||||
Ext2SuperBlock->s_last_mounted[20], Ext2SuperBlock->s_last_mounted[21], Ext2SuperBlock->s_last_mounted[22], Ext2SuperBlock->s_last_mounted[23], Ext2SuperBlock->s_last_mounted[24], Ext2SuperBlock->s_last_mounted[25], Ext2SuperBlock->s_last_mounted[26], Ext2SuperBlock->s_last_mounted[27], Ext2SuperBlock->s_last_mounted[28], Ext2SuperBlock->s_last_mounted[29],
|
||||
Ext2SuperBlock->s_last_mounted[30], Ext2SuperBlock->s_last_mounted[31], Ext2SuperBlock->s_last_mounted[32], Ext2SuperBlock->s_last_mounted[33], Ext2SuperBlock->s_last_mounted[34], Ext2SuperBlock->s_last_mounted[35], Ext2SuperBlock->s_last_mounted[36], Ext2SuperBlock->s_last_mounted[37], Ext2SuperBlock->s_last_mounted[38], Ext2SuperBlock->s_last_mounted[39],
|
||||
Ext2SuperBlock->s_last_mounted[40], Ext2SuperBlock->s_last_mounted[41], Ext2SuperBlock->s_last_mounted[42], Ext2SuperBlock->s_last_mounted[43], Ext2SuperBlock->s_last_mounted[44], Ext2SuperBlock->s_last_mounted[45], Ext2SuperBlock->s_last_mounted[46], Ext2SuperBlock->s_last_mounted[47], Ext2SuperBlock->s_last_mounted[48], Ext2SuperBlock->s_last_mounted[49],
|
||||
Ext2SuperBlock->s_last_mounted[50], Ext2SuperBlock->s_last_mounted[51], Ext2SuperBlock->s_last_mounted[52], Ext2SuperBlock->s_last_mounted[53], Ext2SuperBlock->s_last_mounted[54], Ext2SuperBlock->s_last_mounted[55], Ext2SuperBlock->s_last_mounted[56], Ext2SuperBlock->s_last_mounted[57], Ext2SuperBlock->s_last_mounted[58], Ext2SuperBlock->s_last_mounted[59],
|
||||
Ext2SuperBlock->s_last_mounted[60], Ext2SuperBlock->s_last_mounted[61], Ext2SuperBlock->s_last_mounted[62], Ext2SuperBlock->s_last_mounted[63]);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_algorithm_usage_bitmap = 0x%x\n", Ext2SuperBlock->s_algorithm_usage_bitmap);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_prealloc_blocks = %d\n", Ext2SuperBlock->s_prealloc_blocks);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_prealloc_dir_blocks = %d\n", Ext2SuperBlock->s_prealloc_dir_blocks);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_padding1 = %d\n", Ext2SuperBlock->s_padding1);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_journal_uuid[16] = 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", Ext2SuperBlock->s_journal_uuid[0], Ext2SuperBlock->s_journal_uuid[1], Ext2SuperBlock->s_journal_uuid[2], Ext2SuperBlock->s_journal_uuid[3], Ext2SuperBlock->s_journal_uuid[4], Ext2SuperBlock->s_journal_uuid[5], Ext2SuperBlock->s_journal_uuid[6], Ext2SuperBlock->s_journal_uuid[7], Ext2SuperBlock->s_journal_uuid[8], Ext2SuperBlock->s_journal_uuid[9], Ext2SuperBlock->s_journal_uuid[10], Ext2SuperBlock->s_journal_uuid[11], Ext2SuperBlock->s_journal_uuid[12], Ext2SuperBlock->s_journal_uuid[13], Ext2SuperBlock->s_journal_uuid[14], Ext2SuperBlock->s_journal_uuid[15]);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_journal_inum = %d\n", Ext2SuperBlock->s_journal_inum);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_journal_dev = %d\n", Ext2SuperBlock->s_journal_dev);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "s_last_orphan = %d\n", Ext2SuperBlock->s_last_orphan);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "total_inodes: %d\n", Ext2SuperBlock->total_inodes);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "total_blocks: %d\n", Ext2SuperBlock->total_blocks);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "reserved_blocks: %d\n", Ext2SuperBlock->reserved_blocks);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "free_blocks: %d\n", Ext2SuperBlock->free_blocks);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "free_inodes: %d\n", Ext2SuperBlock->free_inodes);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "first_data_block: %d\n", Ext2SuperBlock->first_data_block);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "log2_block_size: %d\n", Ext2SuperBlock->log2_block_size);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "log2_fragment_size: %d\n", Ext2SuperBlock->log2_fragment_size);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "blocks_per_group: %d\n", Ext2SuperBlock->blocks_per_group);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "fragments_per_group: %d\n", Ext2SuperBlock->fragments_per_group);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "inodes_per_group: %d\n", Ext2SuperBlock->inodes_per_group);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "mtime: %d\n", Ext2SuperBlock->mtime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "utime: %d\n", Ext2SuperBlock->utime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "mnt_count: %d\n", Ext2SuperBlock->mnt_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "max_mnt_count: %d\n", Ext2SuperBlock->max_mnt_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "magic: 0x%x\n", Ext2SuperBlock->magic);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "fs_state: %d\n", Ext2SuperBlock->fs_state);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "error_handling: %d\n", Ext2SuperBlock->error_handling);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "minor_revision_level: %d\n", Ext2SuperBlock->minor_revision_level);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "lastcheck: %d\n", Ext2SuperBlock->lastcheck);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "checkinterval: %d\n", Ext2SuperBlock->checkinterval);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "creator_os: %d\n", Ext2SuperBlock->creator_os);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "revision_level: %d\n", Ext2SuperBlock->revision_level);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "uid_reserved: %d\n", Ext2SuperBlock->uid_reserved);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "gid_reserved: %d\n", Ext2SuperBlock->gid_reserved);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "first_inode: %d\n", Ext2SuperBlock->first_inode);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "inode_size: %d\n", Ext2SuperBlock->inode_size);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "block_group_number: %d\n", Ext2SuperBlock->block_group_number);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "feature_compatibility: 0x%x\n", Ext2SuperBlock->feature_compatibility);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "feature_incompat: 0x%x\n", Ext2SuperBlock->feature_incompat);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "feature_ro_compat: 0x%x\n", Ext2SuperBlock->feature_ro_compat);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "unique_id = { 0x%x, 0x%x, 0x%x, 0x%x }\n",
|
||||
Ext2SuperBlock->unique_id[0], Ext2SuperBlock->unique_id[1], Ext2SuperBlock->unique_id[2], Ext2SuperBlock->unique_id[3]);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "volume_name = '%.16s'\n", Ext2SuperBlock->volume_name);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "last_mounted_on = '%.64s'\n", Ext2SuperBlock->last_mounted_on);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "compression_info = 0x%x\n", Ext2SuperBlock->compression_info);
|
||||
|
||||
//
|
||||
// Check the super block magic
|
||||
//
|
||||
if (Ext2SuperBlock->s_magic != EXT3_SUPER_MAGIC)
|
||||
if (Ext2SuperBlock->magic != EXT2_MAGIC)
|
||||
{
|
||||
FileSystemError("Invalid super block magic (0xef53)");
|
||||
return FALSE;
|
||||
|
|
@ -658,7 +645,7 @@ BOOLEAN Ext2ReadSuperBlock(VOID)
|
|||
//
|
||||
// Check the revision level
|
||||
//
|
||||
if (Ext2SuperBlock->s_rev_level > EXT3_DYNAMIC_REV)
|
||||
if (Ext2SuperBlock->revision_level > EXT2_DYNAMIC_REVISION)
|
||||
{
|
||||
FileSystemError("FreeLoader does not understand the revision of this EXT2/EXT3 filesystem.\nPlease update FreeLoader.");
|
||||
return FALSE;
|
||||
|
|
@ -669,33 +656,33 @@ BOOLEAN Ext2ReadSuperBlock(VOID)
|
|||
// Don't need to check the compatible or read-only compatible features
|
||||
// because we only mount the filesystem as read-only
|
||||
//
|
||||
if ((Ext2SuperBlock->s_rev_level >= EXT3_DYNAMIC_REV) &&
|
||||
if ((Ext2SuperBlock->revision_level >= EXT2_DYNAMIC_REVISION) &&
|
||||
(/*((Ext2SuperBlock->s_feature_compat & ~EXT3_FEATURE_COMPAT_SUPP) != 0) ||*/
|
||||
/*((Ext2SuperBlock->s_feature_ro_compat & ~EXT3_FEATURE_RO_COMPAT_SUPP) != 0) ||*/
|
||||
((Ext2SuperBlock->s_feature_incompat & ~EXT3_FEATURE_INCOMPAT_SUPP) != 0)))
|
||||
((Ext2SuperBlock->feature_incompat & ~EXT3_FEATURE_INCOMPAT_SUPP) != 0)))
|
||||
{
|
||||
FileSystemError("FreeLoader does not understand features of this EXT2/EXT3 filesystem.\nPlease update FreeLoader.");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
// Calculate the group count
|
||||
Ext2GroupCount = (Ext2SuperBlock->s_blocks_count - Ext2SuperBlock->s_first_data_block + Ext2SuperBlock->s_blocks_per_group - 1) / Ext2SuperBlock->s_blocks_per_group;
|
||||
Ext2GroupCount = (Ext2SuperBlock->total_blocks - Ext2SuperBlock->first_data_block + Ext2SuperBlock->blocks_per_group - 1) / Ext2SuperBlock->blocks_per_group;
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2GroupCount: %d\n", Ext2GroupCount);
|
||||
|
||||
// Calculate the block size
|
||||
Ext2BlockSizeInBytes = 1024 << Ext2SuperBlock->s_log_block_size;
|
||||
Ext2BlockSizeInBytes = 1024 << Ext2SuperBlock->log2_block_size;
|
||||
Ext2BlockSizeInSectors = Ext2BlockSizeInBytes / Ext2DiskGeometry.BytesPerSector;
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2BlockSizeInBytes: %d\n", Ext2BlockSizeInBytes);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2BlockSizeInSectors: %d\n", Ext2BlockSizeInSectors);
|
||||
|
||||
// Calculate the fragment size
|
||||
if (Ext2SuperBlock->s_log_frag_size >= 0)
|
||||
if (Ext2SuperBlock->log2_fragment_size >= 0)
|
||||
{
|
||||
Ext2FragmentSizeInBytes = 1024 << Ext2SuperBlock->s_log_frag_size;
|
||||
Ext2FragmentSizeInBytes = 1024 << Ext2SuperBlock->log2_fragment_size;
|
||||
}
|
||||
else
|
||||
{
|
||||
Ext2FragmentSizeInBytes = 1024 >> -(Ext2SuperBlock->s_log_frag_size);
|
||||
Ext2FragmentSizeInBytes = 1024 >> -(Ext2SuperBlock->log2_fragment_size);
|
||||
}
|
||||
Ext2FragmentSizeInSectors = Ext2FragmentSizeInBytes / Ext2DiskGeometry.BytesPerSector;
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2FragmentSizeInBytes: %d\n", Ext2FragmentSizeInBytes);
|
||||
|
|
@ -709,11 +696,11 @@ BOOLEAN Ext2ReadSuperBlock(VOID)
|
|||
}
|
||||
|
||||
// Calculate the number of inodes in one block
|
||||
Ext2InodesPerBlock = Ext2BlockSizeInBytes / EXT3_INODE_SIZE(Ext2SuperBlock);
|
||||
Ext2InodesPerBlock = Ext2BlockSizeInBytes / EXT2_INODE_SIZE(Ext2SuperBlock);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2InodesPerBlock: %d\n", Ext2InodesPerBlock);
|
||||
|
||||
// Calculate the number of group descriptors in one block
|
||||
Ext2GroupDescPerBlock = EXT3_DESC_PER_BLOCK(Ext2SuperBlock);
|
||||
Ext2GroupDescPerBlock = EXT2_DESC_PER_BLOCK(Ext2SuperBlock);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2GroupDescPerBlock: %d\n", Ext2GroupDescPerBlock);
|
||||
|
||||
return TRUE;
|
||||
|
|
@ -754,7 +741,7 @@ BOOLEAN Ext2ReadGroupDescriptors(VOID)
|
|||
// Now read the group descriptors
|
||||
for (CurrentGroupDescBlock=0; CurrentGroupDescBlock<GroupDescBlockCount; CurrentGroupDescBlock++)
|
||||
{
|
||||
if (!Ext2ReadBlock(Ext2SuperBlock->s_first_data_block + 1 + CurrentGroupDescBlock, (PVOID)FILESYSBUFFER))
|
||||
if (!Ext2ReadBlock(Ext2SuperBlock->first_data_block + 1 + CurrentGroupDescBlock, (PVOID)FILESYSBUFFER))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
|
@ -778,7 +765,7 @@ BOOLEAN Ext2ReadDirectory(ULONG Inode, PVOID* DirectoryBuffer, PEXT2_INODE Inode
|
|||
}
|
||||
|
||||
// Make sure it is a directory inode
|
||||
if ((InodePointer->i_mode & EXT2_S_IFMT) != EXT2_S_IFDIR)
|
||||
if ((InodePointer->mode & EXT2_S_IFMT) != EXT2_S_IFDIR)
|
||||
{
|
||||
FileSystemError("Inode is not a directory.");
|
||||
return FALSE;
|
||||
|
|
@ -826,12 +813,12 @@ BOOLEAN Ext2ReadDirectory(ULONG Inode, PVOID* DirectoryBuffer, PEXT2_INODE Inode
|
|||
|
||||
BOOLEAN Ext2ReadBlock(ULONG BlockNumber, PVOID Buffer)
|
||||
{
|
||||
CHAR ErrorString[80];
|
||||
CHAR ErrorString[80];
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2ReadBlock() BlockNumber = %d Buffer = 0x%x\n", BlockNumber, Buffer);
|
||||
|
||||
// Make sure its a valid block
|
||||
if (BlockNumber > Ext2SuperBlock->s_blocks_count)
|
||||
if (BlockNumber > Ext2SuperBlock->total_blocks)
|
||||
{
|
||||
sprintf(ErrorString, "Error reading block %d - block out of range.", (int) BlockNumber);
|
||||
FileSystemError(ErrorString);
|
||||
|
|
@ -872,7 +859,7 @@ BOOLEAN Ext2ReadPartialBlock(ULONG BlockNumber, ULONG StartingOffset, ULONG Leng
|
|||
|
||||
ULONG Ext2GetGroupDescBlockNumber(ULONG Group)
|
||||
{
|
||||
return (((Group * sizeof(EXT2_GROUP_DESC)) / Ext2GroupDescPerBlock) + Ext2SuperBlock->s_first_data_block + 1);
|
||||
return (((Group * sizeof(EXT2_GROUP_DESC)) / Ext2GroupDescPerBlock) + Ext2SuperBlock->first_data_block + 1);
|
||||
}
|
||||
|
||||
ULONG Ext2GetGroupDescOffsetInBlock(ULONG Group)
|
||||
|
|
@ -882,31 +869,31 @@ ULONG Ext2GetGroupDescOffsetInBlock(ULONG Group)
|
|||
|
||||
ULONG Ext2GetInodeGroupNumber(ULONG Inode)
|
||||
{
|
||||
return ((Inode - 1) / Ext2SuperBlock->s_inodes_per_group);
|
||||
return ((Inode - 1) / Ext2SuperBlock->inodes_per_group);
|
||||
}
|
||||
|
||||
ULONG Ext2GetInodeBlockNumber(ULONG Inode)
|
||||
{
|
||||
return (((Inode - 1) % Ext2SuperBlock->s_inodes_per_group) / Ext2InodesPerBlock);
|
||||
return (((Inode - 1) % Ext2SuperBlock->inodes_per_group) / Ext2InodesPerBlock);
|
||||
}
|
||||
|
||||
ULONG Ext2GetInodeOffsetInBlock(ULONG Inode)
|
||||
{
|
||||
return (((Inode - 1) % Ext2SuperBlock->s_inodes_per_group) % Ext2InodesPerBlock);
|
||||
return (((Inode - 1) % Ext2SuperBlock->inodes_per_group) % Ext2InodesPerBlock);
|
||||
}
|
||||
|
||||
BOOLEAN Ext2ReadInode(ULONG Inode, PEXT2_INODE InodeBuffer)
|
||||
{
|
||||
ULONG InodeGroupNumber;
|
||||
ULONG InodeBlockNumber;
|
||||
ULONG InodeOffsetInBlock;
|
||||
CHAR ErrorString[80];
|
||||
ULONG InodeGroupNumber;
|
||||
ULONG InodeBlockNumber;
|
||||
ULONG InodeOffsetInBlock;
|
||||
CHAR ErrorString[80];
|
||||
EXT2_GROUP_DESC GroupDescriptor;
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2ReadInode() Inode = %d\n", Inode);
|
||||
|
||||
// Make sure its a valid inode
|
||||
if ((Inode < 1) || (Inode > Ext2SuperBlock->s_inodes_count))
|
||||
if ((Inode < 1) || (Inode > Ext2SuperBlock->total_inodes))
|
||||
{
|
||||
sprintf(ErrorString, "Error reading inode %ld - inode out of range.", Inode);
|
||||
FileSystemError(ErrorString);
|
||||
|
|
@ -928,7 +915,7 @@ BOOLEAN Ext2ReadInode(ULONG Inode, PEXT2_INODE InodeBuffer)
|
|||
}
|
||||
|
||||
// Add the start block of the inode table to the inode block number
|
||||
InodeBlockNumber += GroupDescriptor.bg_inode_table;
|
||||
InodeBlockNumber += GroupDescriptor.inode_table_id;
|
||||
DPRINTM(DPRINT_FILESYSTEM, "InodeBlockNumber (after group desc correction) = %d\n", InodeBlockNumber);
|
||||
|
||||
// Read the block
|
||||
|
|
@ -938,29 +925,34 @@ BOOLEAN Ext2ReadInode(ULONG Inode, PEXT2_INODE InodeBuffer)
|
|||
}
|
||||
|
||||
// Copy the data to their buffer
|
||||
RtlCopyMemory(InodeBuffer, (PVOID)((ULONG_PTR)FILESYSBUFFER + (InodeOffsetInBlock * EXT3_INODE_SIZE(Ext2SuperBlock))), sizeof(EXT2_INODE));
|
||||
RtlCopyMemory(InodeBuffer, (PVOID)((ULONG_PTR)FILESYSBUFFER + (InodeOffsetInBlock * EXT2_INODE_SIZE(Ext2SuperBlock))), sizeof(EXT2_INODE));
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Dumping inode information:\n");
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_mode = 0x%x\n", InodeBuffer->i_mode);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_uid = %d\n", InodeBuffer->i_uid);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_size = %d\n", InodeBuffer->i_size);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_atime = %d\n", InodeBuffer->i_atime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_ctime = %d\n", InodeBuffer->i_ctime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_mtime = %d\n", InodeBuffer->i_mtime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_dtime = %d\n", InodeBuffer->i_dtime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_gid = %d\n", InodeBuffer->i_gid);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_links_count = %d\n", InodeBuffer->i_links_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_blocks = %d\n", InodeBuffer->i_blocks);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_flags = 0x%x\n", InodeBuffer->i_flags);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_block[EXT3_N_BLOCKS (%d)] =\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d,\n%d\n", EXT3_N_BLOCKS, InodeBuffer->i_block[0], InodeBuffer->i_block[1], InodeBuffer->i_block[2], InodeBuffer->i_block[3], InodeBuffer->i_block[4], InodeBuffer->i_block[5], InodeBuffer->i_block[6], InodeBuffer->i_block[7], InodeBuffer->i_block[8], InodeBuffer->i_block[9], InodeBuffer->i_block[10], InodeBuffer->i_block[11], InodeBuffer->i_block[12], InodeBuffer->i_block[13], InodeBuffer->i_block[14]);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_generation = %d\n", InodeBuffer->i_generation);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_file_acl = %d\n", InodeBuffer->i_file_acl);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_dir_acl = %d\n", InodeBuffer->i_dir_acl);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "i_faddr = %d\n", InodeBuffer->i_faddr);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "l_i_frag = %d\n", InodeBuffer->osd2.linux2.l_i_frag);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "l_i_fsize = %d\n", InodeBuffer->osd2.linux2.l_i_fsize);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "l_i_uid_high = %d\n", InodeBuffer->osd2.linux2.l_i_uid_high);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "l_i_gid_high = %d\n", InodeBuffer->osd2.linux2.l_i_gid_high);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "mode = 0x%x\n", InodeBuffer->mode);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "uid = %d\n", InodeBuffer->uid);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "size = %d\n", InodeBuffer->size);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "atime = %d\n", InodeBuffer->atime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "ctime = %d\n", InodeBuffer->ctime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "mtime = %d\n", InodeBuffer->mtime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "dtime = %d\n", InodeBuffer->dtime);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "gid = %d\n", InodeBuffer->gid);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "nlinks = %d\n", InodeBuffer->nlinks);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "blockcnt = %d\n", InodeBuffer->blockcnt);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "flags = 0x%x\n", InodeBuffer->flags);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "osd1 = 0x%x\n", InodeBuffer->osd1);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "dir_blocks = { %u, %u, %u, %u, %u, %u, %u, %u, %u, %u, %u, %u }\n",
|
||||
InodeBuffer->blocks.dir_blocks[0], InodeBuffer->blocks.dir_blocks[1], InodeBuffer->blocks.dir_blocks[ 2], InodeBuffer->blocks.dir_blocks[ 3],
|
||||
InodeBuffer->blocks.dir_blocks[4], InodeBuffer->blocks.dir_blocks[5], InodeBuffer->blocks.dir_blocks[ 6], InodeBuffer->blocks.dir_blocks[ 7],
|
||||
InodeBuffer->blocks.dir_blocks[8], InodeBuffer->blocks.dir_blocks[9], InodeBuffer->blocks.dir_blocks[10], InodeBuffer->blocks.dir_blocks[11]);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "indir_block = %u\n", InodeBuffer->blocks.indir_block);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "double_indir_block = %u\n", InodeBuffer->blocks.double_indir_block);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "tripple_indir_block = %u\n", InodeBuffer->blocks.tripple_indir_block);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "version = %d\n", InodeBuffer->version);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "acl = %d\n", InodeBuffer->acl);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "dir_acl = %d\n", InodeBuffer->dir_acl);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "fragment_addr = %d\n", InodeBuffer->fragment_addr);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "osd2 = { %d, %d, %d }\n",
|
||||
InodeBuffer->osd2[0], InodeBuffer->osd2[1], InodeBuffer->osd2[2]);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
@ -979,12 +971,12 @@ BOOLEAN Ext2ReadGroupDescriptor(ULONG Group, PEXT2_GROUP_DESC GroupBuffer)
|
|||
RtlCopyMemory(GroupBuffer, &Ext2GroupDescriptors[Group], sizeof(EXT2_GROUP_DESC));
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Dumping group descriptor:\n");
|
||||
DPRINTM(DPRINT_FILESYSTEM, "bg_block_bitmap = %d\n", GroupBuffer->bg_block_bitmap);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "bg_inode_bitmap = %d\n", GroupBuffer->bg_inode_bitmap);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "bg_inode_table = %d\n", GroupBuffer->bg_inode_table);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "bg_free_blocks_count = %d\n", GroupBuffer->bg_free_blocks_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "bg_free_inodes_count = %d\n", GroupBuffer->bg_free_inodes_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "bg_used_dirs_count = %d\n", GroupBuffer->bg_used_dirs_count);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "block_id = %d\n", GroupBuffer->block_id);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "inode_id = %d\n", GroupBuffer->inode_id);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "inode_table_id = %d\n", GroupBuffer->inode_table_id);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "free_blocks = %d\n", GroupBuffer->free_blocks);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "free_inodes = %d\n", GroupBuffer->free_inodes);
|
||||
DPRINTM(DPRINT_FILESYSTEM, "used_dirs = %d\n", GroupBuffer->used_dirs);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
@ -1017,19 +1009,19 @@ ULONG* Ext2ReadBlockPointerList(PEXT2_INODE Inode)
|
|||
}
|
||||
|
||||
RtlZeroMemory(BlockList, BlockCount * sizeof(ULONG));
|
||||
CurrentBlockInList = 0;
|
||||
|
||||
// Copy the direct block pointers
|
||||
for (CurrentBlock=0; CurrentBlockInList<BlockCount && CurrentBlock<EXT3_NDIR_BLOCKS; CurrentBlock++)
|
||||
for (CurrentBlockInList = CurrentBlock = 0;
|
||||
CurrentBlockInList < BlockCount && CurrentBlock < INDIRECT_BLOCKS;
|
||||
CurrentBlock++, CurrentBlockInList++)
|
||||
{
|
||||
BlockList[CurrentBlockInList] = Inode->i_block[CurrentBlock];
|
||||
CurrentBlockInList++;
|
||||
BlockList[CurrentBlockInList] = Inode->blocks.dir_blocks[CurrentBlock];
|
||||
}
|
||||
|
||||
// Copy the indirect block pointers
|
||||
if (CurrentBlockInList < BlockCount)
|
||||
{
|
||||
if (!Ext2CopyIndirectBlockPointers(BlockList, &CurrentBlockInList, BlockCount, Inode->i_block[EXT3_IND_BLOCK]))
|
||||
if (!Ext2CopyIndirectBlockPointers(BlockList, &CurrentBlockInList, BlockCount, Inode->blocks.indir_block))
|
||||
{
|
||||
MmHeapFree(BlockList);
|
||||
return FALSE;
|
||||
|
|
@ -1039,7 +1031,7 @@ ULONG* Ext2ReadBlockPointerList(PEXT2_INODE Inode)
|
|||
// Copy the double indirect block pointers
|
||||
if (CurrentBlockInList < BlockCount)
|
||||
{
|
||||
if (!Ext2CopyDoubleIndirectBlockPointers(BlockList, &CurrentBlockInList, BlockCount, Inode->i_block[EXT3_DIND_BLOCK]))
|
||||
if (!Ext2CopyDoubleIndirectBlockPointers(BlockList, &CurrentBlockInList, BlockCount, Inode->blocks.double_indir_block))
|
||||
{
|
||||
MmHeapFree(BlockList);
|
||||
return FALSE;
|
||||
|
|
@ -1049,7 +1041,7 @@ ULONG* Ext2ReadBlockPointerList(PEXT2_INODE Inode)
|
|||
// Copy the triple indirect block pointers
|
||||
if (CurrentBlockInList < BlockCount)
|
||||
{
|
||||
if (!Ext2CopyTripleIndirectBlockPointers(BlockList, &CurrentBlockInList, BlockCount, Inode->i_block[EXT3_TIND_BLOCK]))
|
||||
if (!Ext2CopyTripleIndirectBlockPointers(BlockList, &CurrentBlockInList, BlockCount, Inode->blocks.tripple_indir_block))
|
||||
{
|
||||
MmHeapFree(BlockList);
|
||||
return FALSE;
|
||||
|
|
@ -1061,21 +1053,21 @@ ULONG* Ext2ReadBlockPointerList(PEXT2_INODE Inode)
|
|||
|
||||
ULONGLONG Ext2GetInodeFileSize(PEXT2_INODE Inode)
|
||||
{
|
||||
if ((Inode->i_mode & EXT2_S_IFMT) == EXT2_S_IFDIR)
|
||||
if ((Inode->mode & EXT2_S_IFMT) == EXT2_S_IFDIR)
|
||||
{
|
||||
return (ULONGLONG)(Inode->i_size);
|
||||
return (ULONGLONG)(Inode->size);
|
||||
}
|
||||
else
|
||||
{
|
||||
return ((ULONGLONG)(Inode->i_size) | ((ULONGLONG)(Inode->i_dir_acl) << 32));
|
||||
return ((ULONGLONG)(Inode->size) | ((ULONGLONG)(Inode->dir_acl) << 32));
|
||||
}
|
||||
}
|
||||
|
||||
BOOLEAN Ext2CopyIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInList, ULONG BlockCount, ULONG IndirectBlock)
|
||||
{
|
||||
ULONG* BlockBuffer = (ULONG*)FILESYSBUFFER;
|
||||
ULONG CurrentBlock;
|
||||
ULONG BlockPointersPerBlock;
|
||||
ULONG CurrentBlock;
|
||||
ULONG BlockPointersPerBlock;
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2CopyIndirectBlockPointers() BlockCount = %d\n", BlockCount);
|
||||
|
||||
|
|
@ -1098,8 +1090,8 @@ BOOLEAN Ext2CopyIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInLis
|
|||
BOOLEAN Ext2CopyDoubleIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInList, ULONG BlockCount, ULONG DoubleIndirectBlock)
|
||||
{
|
||||
ULONG* BlockBuffer;
|
||||
ULONG CurrentBlock;
|
||||
ULONG BlockPointersPerBlock;
|
||||
ULONG CurrentBlock;
|
||||
ULONG BlockPointersPerBlock;
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2CopyDoubleIndirectBlockPointers() BlockCount = %d\n", BlockCount);
|
||||
|
||||
|
|
@ -1133,8 +1125,8 @@ BOOLEAN Ext2CopyDoubleIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBloc
|
|||
BOOLEAN Ext2CopyTripleIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInList, ULONG BlockCount, ULONG TripleIndirectBlock)
|
||||
{
|
||||
ULONG* BlockBuffer;
|
||||
ULONG CurrentBlock;
|
||||
ULONG BlockPointersPerBlock;
|
||||
ULONG CurrentBlock;
|
||||
ULONG BlockPointersPerBlock;
|
||||
|
||||
DPRINTM(DPRINT_FILESYSTEM, "Ext2CopyTripleIndirectBlockPointers() BlockCount = %d\n", BlockCount);
|
||||
|
||||
|
|
@ -1289,7 +1281,7 @@ const DEVVTBL* Ext2Mount(ULONG DeviceId)
|
|||
//
|
||||
// Check if SuperBlock is valid. If yes, return Ext2 function table
|
||||
//
|
||||
if (SuperBlock.s_magic == EXT3_SUPER_MAGIC)
|
||||
if (SuperBlock.magic == EXT2_MAGIC)
|
||||
{
|
||||
//
|
||||
// Compatibility hack as long as FS is not using underlying device DeviceId
|
||||
|
|
|
|||
|
|
@ -83,7 +83,7 @@ BOOLEAN FsRecIsExt2(ULONG DriveNumber, ULONG VolumeStartSector)
|
|||
return FALSE;
|
||||
}
|
||||
|
||||
if (SuperBlock->s_magic == EXT3_SUPER_MAGIC)
|
||||
if (SuperBlock->magic == EXT2_MAGIC)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -20,615 +20,182 @@
|
|||
#ifndef __EXT2_H
|
||||
#define __EXT2_H
|
||||
|
||||
|
||||
/*
|
||||
* linux/include/linux/ext3_fs.h
|
||||
* grub/fs/ext2.c
|
||||
*
|
||||
* Copyright (C) 1992, 1993, 1994, 1995
|
||||
* Remy Card (card@masi.ibp.fr)
|
||||
* Laboratoire MASI - Institut Blaise Pascal
|
||||
* Universite Pierre et Marie Curie (Paris VI)
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2003,2004,2005,2007 Free Software Foundation, Inc.
|
||||
*
|
||||
* from
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* linux/include/linux/minix_fs.h
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* Copyright (C) 1991, 1992 Linus Torvalds
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef _LINUX_EXT3_FS_H
|
||||
#define _LINUX_EXT3_FS_H
|
||||
/* Magic value used to identify an ext2 filesystem. */
|
||||
#define EXT2_MAGIC 0xEF53
|
||||
/* Amount of indirect blocks in an inode. */
|
||||
#define INDIRECT_BLOCKS 12
|
||||
/* Maximum lenght of a pathname. */
|
||||
#define EXT2_PATH_MAX 4096
|
||||
/* Maximum nesting of symlinks, used to prevent a loop. */
|
||||
#define EXT2_MAX_SYMLINKCNT 8
|
||||
|
||||
//#include <linux/types.h>
|
||||
/* The good old revision and the default inode size. */
|
||||
#define EXT2_GOOD_OLD_REVISION 0
|
||||
#define EXT2_DYNAMIC_REVISION 1
|
||||
#define EXT2_GOOD_OLD_INODE_SIZE 128
|
||||
|
||||
/*
|
||||
* The second extended filesystem constants/structures
|
||||
*/
|
||||
/* Filetype used in directory entry. */
|
||||
#define FILETYPE_UNKNOWN 0
|
||||
#define FILETYPE_REG 1
|
||||
#define FILETYPE_DIRECTORY 2
|
||||
#define FILETYPE_SYMLINK 7
|
||||
|
||||
/*
|
||||
* Define EXT3FS_DEBUG to produce debug messages
|
||||
*/
|
||||
#undef EXT3FS_DEBUG
|
||||
/* Filetype information as used in inodes. */
|
||||
#define FILETYPE_INO_MASK 0170000
|
||||
#define FILETYPE_INO_REG 0100000
|
||||
#define FILETYPE_INO_DIRECTORY 0040000
|
||||
#define FILETYPE_INO_SYMLINK 0120000
|
||||
|
||||
/*
|
||||
* Define EXT3_PREALLOCATE to preallocate data blocks for expanding files
|
||||
*/
|
||||
#undef EXT3_PREALLOCATE /* @@@ Fix this! */
|
||||
#define EXT3_DEFAULT_PREALLOC_BLOCKS 8
|
||||
|
||||
/*
|
||||
* The second extended file system version
|
||||
*/
|
||||
#define EXT3FS_DATE "10 Jan 2002"
|
||||
#define EXT3FS_VERSION "2.4-0.9.17"
|
||||
|
||||
/*
|
||||
* Debug code
|
||||
*/
|
||||
#ifdef EXT3FS_DEBUG
|
||||
#define ext3_debug(f, a...) \
|
||||
do { \
|
||||
printk (KERN_DEBUG "EXT3-fs DEBUG (%s, %d): %s:", \
|
||||
__FILE__, __LINE__, __FUNCTION__); \
|
||||
printk (KERN_DEBUG f, ## a); \
|
||||
} while (0)
|
||||
#else
|
||||
#ifdef __GNUC__
|
||||
#define ext3_debug(f, a...) do {} while (0)
|
||||
#else
|
||||
#define ext3_debug
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Special inodes numbers
|
||||
*/
|
||||
#define EXT3_BAD_INO 1 /* Bad blocks inode */
|
||||
#define EXT3_ROOT_INO 2 /* Root inode */
|
||||
#define EXT3_ACL_IDX_INO 3 /* ACL inode */
|
||||
#define EXT3_ACL_DATA_INO 4 /* ACL inode */
|
||||
#define EXT3_BOOT_LOADER_INO 5 /* Boot loader inode */
|
||||
#define EXT3_UNDEL_DIR_INO 6 /* Undelete directory inode */
|
||||
#define EXT3_RESIZE_INO 7 /* Reserved group descriptors inode */
|
||||
#define EXT3_JOURNAL_INO 8 /* Journal inode */
|
||||
|
||||
/* First non-reserved inode for old ext3 filesystems */
|
||||
#define EXT3_GOOD_OLD_FIRST_INO 11
|
||||
|
||||
/*
|
||||
* The second extended file system magic number
|
||||
*/
|
||||
#define EXT3_SUPER_MAGIC 0xEF53
|
||||
|
||||
/*
|
||||
* Maximal count of links to a file
|
||||
*/
|
||||
#define EXT3_LINK_MAX 32000
|
||||
|
||||
/*
|
||||
* Macro-instructions used to manage several block sizes
|
||||
*/
|
||||
#define EXT3_MIN_BLOCK_SIZE 1024
|
||||
#define EXT3_MAX_BLOCK_SIZE 4096
|
||||
#define EXT3_MIN_BLOCK_LOG_SIZE 10
|
||||
#ifdef __KERNEL__
|
||||
# define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize)
|
||||
#else
|
||||
# define EXT3_BLOCK_SIZE(s) (EXT3_MIN_BLOCK_SIZE << (s)->s_log_block_size)
|
||||
#endif
|
||||
#define EXT3_ACLE_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (struct ext3_acl_entry))
|
||||
#define EXT3_ADDR_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (ULONG))
|
||||
#ifdef __KERNEL__
|
||||
# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
|
||||
#else
|
||||
# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
|
||||
#endif
|
||||
#ifdef __KERNEL__
|
||||
#define EXT3_ADDR_PER_BLOCK_BITS(s) ((s)->u.ext3_sb.s_addr_per_block_bits)
|
||||
#define EXT3_INODE_SIZE(s) ((s)->u.ext3_sb.s_inode_size)
|
||||
#define EXT3_FIRST_INO(s) ((s)->u.ext3_sb.s_first_ino)
|
||||
#else
|
||||
#define EXT3_INODE_SIZE(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
|
||||
EXT3_GOOD_OLD_INODE_SIZE : \
|
||||
(s)->s_inode_size)
|
||||
#define EXT3_FIRST_INO(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
|
||||
EXT3_GOOD_OLD_FIRST_INO : \
|
||||
(s)->s_first_ino)
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Macro-instructions used to manage fragments
|
||||
*/
|
||||
#define EXT3_MIN_FRAG_SIZE 1024
|
||||
#define EXT3_MAX_FRAG_SIZE 4096
|
||||
#define EXT3_MIN_FRAG_LOG_SIZE 10
|
||||
#ifdef __KERNEL__
|
||||
# define EXT3_FRAG_SIZE(s) ((s)->u.ext3_sb.s_frag_size)
|
||||
# define EXT3_FRAGS_PER_BLOCK(s) ((s)->u.ext3_sb.s_frags_per_block)
|
||||
#else
|
||||
# define EXT3_FRAG_SIZE(s) (EXT3_MIN_FRAG_SIZE << (s)->s_log_frag_size)
|
||||
# define EXT3_FRAGS_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / EXT3_FRAG_SIZE(s))
|
||||
#endif
|
||||
|
||||
/*
|
||||
* ACL structures
|
||||
*/
|
||||
struct ext3_acl_header /* Header of Access Control Lists */
|
||||
/* The ext2 superblock. */
|
||||
struct ext2_sblock
|
||||
{
|
||||
ULONG aclh_size;
|
||||
ULONG aclh_file_count;
|
||||
ULONG aclh_acle_count;
|
||||
ULONG aclh_first_acle;
|
||||
ULONG total_inodes;
|
||||
ULONG total_blocks;
|
||||
ULONG reserved_blocks;
|
||||
ULONG free_blocks;
|
||||
ULONG free_inodes;
|
||||
ULONG first_data_block;
|
||||
ULONG log2_block_size;
|
||||
ULONG log2_fragment_size;
|
||||
ULONG blocks_per_group;
|
||||
ULONG fragments_per_group;
|
||||
ULONG inodes_per_group;
|
||||
ULONG mtime;
|
||||
ULONG utime;
|
||||
USHORT mnt_count;
|
||||
USHORT max_mnt_count;
|
||||
USHORT magic;
|
||||
USHORT fs_state;
|
||||
USHORT error_handling;
|
||||
USHORT minor_revision_level;
|
||||
ULONG lastcheck;
|
||||
ULONG checkinterval;
|
||||
ULONG creator_os;
|
||||
ULONG revision_level;
|
||||
USHORT uid_reserved;
|
||||
USHORT gid_reserved;
|
||||
ULONG first_inode;
|
||||
USHORT inode_size;
|
||||
USHORT block_group_number;
|
||||
ULONG feature_compatibility;
|
||||
ULONG feature_incompat;
|
||||
ULONG feature_ro_compat;
|
||||
ULONG unique_id[4];
|
||||
char volume_name[16];
|
||||
char last_mounted_on[64];
|
||||
ULONG compression_info;
|
||||
};
|
||||
|
||||
struct ext3_acl_entry /* Access Control List Entry */
|
||||
/* The ext2 blockgroup. */
|
||||
struct ext2_block_group
|
||||
{
|
||||
ULONG acle_size;
|
||||
USHORT acle_perms; /* Access permissions */
|
||||
USHORT acle_type; /* Type of entry */
|
||||
USHORT acle_tag; /* User or group identity */
|
||||
USHORT acle_pad1;
|
||||
ULONG acle_next; /* Pointer on next entry for the */
|
||||
/* same inode or on next free entry */
|
||||
ULONG block_id;
|
||||
ULONG inode_id;
|
||||
ULONG inode_table_id;
|
||||
USHORT free_blocks;
|
||||
USHORT free_inodes;
|
||||
USHORT used_dirs;
|
||||
USHORT pad;
|
||||
ULONG reserved[3];
|
||||
};
|
||||
|
||||
/*
|
||||
* Structure of a blocks group descriptor
|
||||
*/
|
||||
struct ext3_group_desc
|
||||
/* The ext2 inode. */
|
||||
struct ext2_inode
|
||||
{
|
||||
ULONG bg_block_bitmap; /* Blocks bitmap block */
|
||||
ULONG bg_inode_bitmap; /* Inodes bitmap block */
|
||||
ULONG bg_inode_table; /* Inodes table block */
|
||||
USHORT bg_free_blocks_count; /* Free blocks count */
|
||||
USHORT bg_free_inodes_count; /* Free inodes count */
|
||||
USHORT bg_used_dirs_count; /* Directories count */
|
||||
USHORT bg_pad;
|
||||
ULONG bg_reserved[3];
|
||||
USHORT mode;
|
||||
USHORT uid;
|
||||
ULONG size;
|
||||
ULONG atime;
|
||||
ULONG ctime;
|
||||
ULONG mtime;
|
||||
ULONG dtime;
|
||||
USHORT gid;
|
||||
USHORT nlinks;
|
||||
ULONG blockcnt; /* Blocks of 512 bytes!! */
|
||||
ULONG flags;
|
||||
ULONG osd1;
|
||||
union
|
||||
{
|
||||
struct datablocks
|
||||
{
|
||||
ULONG dir_blocks[INDIRECT_BLOCKS];
|
||||
ULONG indir_block;
|
||||
ULONG double_indir_block;
|
||||
ULONG tripple_indir_block;
|
||||
} blocks;
|
||||
char symlink[60];
|
||||
};
|
||||
ULONG version;
|
||||
ULONG acl;
|
||||
ULONG dir_acl;
|
||||
ULONG fragment_addr;
|
||||
ULONG osd2[3];
|
||||
};
|
||||
|
||||
/*
|
||||
* Macro-instructions used to manage group descriptors
|
||||
*/
|
||||
#ifdef __KERNEL__
|
||||
# define EXT3_BLOCKS_PER_GROUP(s) ((s)->u.ext3_sb.s_blocks_per_group)
|
||||
# define EXT3_DESC_PER_BLOCK(s) ((s)->u.ext3_sb.s_desc_per_block)
|
||||
# define EXT3_INODES_PER_GROUP(s) ((s)->u.ext3_sb.s_inodes_per_group)
|
||||
# define EXT3_DESC_PER_BLOCK_BITS(s) ((s)->u.ext3_sb.s_desc_per_block_bits)
|
||||
#else
|
||||
# define EXT3_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
|
||||
# define EXT3_DESC_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (struct ext3_group_desc))
|
||||
# define EXT3_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
|
||||
#endif
|
||||
/* The header of an ext2 directory entry. */
|
||||
#define EXT2_NAME_LEN 255
|
||||
|
||||
/*
|
||||
* Constants relative to the data blocks
|
||||
*/
|
||||
#define EXT3_NDIR_BLOCKS 12
|
||||
#define EXT3_IND_BLOCK EXT3_NDIR_BLOCKS
|
||||
#define EXT3_DIND_BLOCK (EXT3_IND_BLOCK + 1)
|
||||
#define EXT3_TIND_BLOCK (EXT3_DIND_BLOCK + 1)
|
||||
#define EXT3_N_BLOCKS (EXT3_TIND_BLOCK + 1)
|
||||
|
||||
/*
|
||||
* Inode flags
|
||||
*/
|
||||
#define EXT3_SECRM_FL 0x00000001 /* Secure deletion */
|
||||
#define EXT3_UNRM_FL 0x00000002 /* Undelete */
|
||||
#define EXT3_COMPR_FL 0x00000004 /* Compress file */
|
||||
#define EXT3_SYNC_FL 0x00000008 /* Synchronous updates */
|
||||
#define EXT3_IMMUTABLE_FL 0x00000010 /* Immutable file */
|
||||
#define EXT3_APPEND_FL 0x00000020 /* writes to file may only append */
|
||||
#define EXT3_NODUMP_FL 0x00000040 /* do not dump file */
|
||||
#define EXT3_NOATIME_FL 0x00000080 /* do not update atime */
|
||||
/* Reserved for compression usage... */
|
||||
#define EXT3_DIRTY_FL 0x00000100
|
||||
#define EXT3_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
|
||||
#define EXT3_NOCOMPR_FL 0x00000400 /* Don't compress */
|
||||
#define EXT3_ECOMPR_FL 0x00000800 /* Compression error */
|
||||
/* End compression flags --- maybe not all used */
|
||||
#define EXT3_INDEX_FL 0x00001000 /* hash-indexed directory */
|
||||
#define EXT3_IMAGIC_FL 0x00002000 /* AFS directory */
|
||||
#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
|
||||
#define EXT3_RESERVED_FL 0x80000000 /* reserved for ext3 lib */
|
||||
|
||||
#define EXT3_FL_USER_VISIBLE 0x00005FFF /* User visible flags */
|
||||
#define EXT3_FL_USER_MODIFIABLE 0x000000FF /* User modifiable flags */
|
||||
|
||||
/*
|
||||
* Inode dynamic state flags
|
||||
*/
|
||||
#define EXT3_STATE_JDATA 0x00000001 /* journaled data exists */
|
||||
#define EXT3_STATE_NEW 0x00000002 /* inode is newly created */
|
||||
|
||||
/*
|
||||
* ioctl commands
|
||||
*/
|
||||
#define EXT3_IOC_GETFLAGS _IOR('f', 1, long)
|
||||
#define EXT3_IOC_SETFLAGS _IOW('f', 2, long)
|
||||
#define EXT3_IOC_GETVERSION _IOR('f', 3, long)
|
||||
#define EXT3_IOC_SETVERSION _IOW('f', 4, long)
|
||||
#define EXT3_IOC_GETVERSION_OLD _IOR('v', 1, long)
|
||||
#define EXT3_IOC_SETVERSION_OLD _IOW('v', 2, long)
|
||||
#ifdef CONFIG_JBD_DEBUG
|
||||
#define EXT3_IOC_WAIT_FOR_READONLY _IOR('f', 99, long)
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Structure of an inode on the disk
|
||||
*/
|
||||
struct ext3_inode {
|
||||
USHORT i_mode; /* File mode */
|
||||
USHORT i_uid; /* Low 16 bits of Owner Uid */
|
||||
ULONG i_size; /* Size in bytes */
|
||||
ULONG i_atime; /* Access time */
|
||||
ULONG i_ctime; /* Creation time */
|
||||
ULONG i_mtime; /* Modification time */
|
||||
ULONG i_dtime; /* Deletion Time */
|
||||
USHORT i_gid; /* Low 16 bits of Group Id */
|
||||
USHORT i_links_count; /* Links count */
|
||||
ULONG i_blocks; /* Blocks count */
|
||||
ULONG i_flags; /* File flags */
|
||||
union {
|
||||
struct {
|
||||
ULONG l_i_reserved1;
|
||||
} linux1;
|
||||
struct {
|
||||
ULONG h_i_translator;
|
||||
} hurd1;
|
||||
struct {
|
||||
ULONG m_i_reserved1;
|
||||
} masix1;
|
||||
} osd1; /* OS dependent 1 */
|
||||
ULONG i_block[EXT3_N_BLOCKS];/* Pointers to blocks */
|
||||
ULONG i_generation; /* File version (for NFS) */
|
||||
ULONG i_file_acl; /* File ACL */
|
||||
ULONG i_dir_acl; /* Directory ACL */
|
||||
ULONG i_faddr; /* Fragment address */
|
||||
union {
|
||||
struct {
|
||||
UCHAR l_i_frag; /* Fragment number */
|
||||
UCHAR l_i_fsize; /* Fragment size */
|
||||
USHORT i_pad1;
|
||||
USHORT l_i_uid_high; /* these 2 fields */
|
||||
USHORT l_i_gid_high; /* were reserved2[0] */
|
||||
ULONG l_i_reserved2;
|
||||
} linux2;
|
||||
struct {
|
||||
UCHAR h_i_frag; /* Fragment number */
|
||||
UCHAR h_i_fsize; /* Fragment size */
|
||||
USHORT h_i_mode_high;
|
||||
USHORT h_i_uid_high;
|
||||
USHORT h_i_gid_high;
|
||||
ULONG h_i_author;
|
||||
} hurd2;
|
||||
struct {
|
||||
UCHAR m_i_frag; /* Fragment number */
|
||||
UCHAR m_i_fsize; /* Fragment size */
|
||||
USHORT m_pad1;
|
||||
ULONG m_i_reserved2[2];
|
||||
} masix2;
|
||||
} osd2; /* OS dependent 2 */
|
||||
};
|
||||
|
||||
#define i_size_high i_dir_acl
|
||||
|
||||
#if defined(__KERNEL__) || defined(__linux__)
|
||||
#define i_reserved1 osd1.linux1.l_i_reserved1
|
||||
#define i_frag osd2.linux2.l_i_frag
|
||||
#define i_fsize osd2.linux2.l_i_fsize
|
||||
#define i_uid_low i_uid
|
||||
#define i_gid_low i_gid
|
||||
#define i_uid_high osd2.linux2.l_i_uid_high
|
||||
#define i_gid_high osd2.linux2.l_i_gid_high
|
||||
#define i_reserved2 osd2.linux2.l_i_reserved2
|
||||
|
||||
#elif defined(__GNU__)
|
||||
|
||||
#define i_translator osd1.hurd1.h_i_translator
|
||||
#define i_frag osd2.hurd2.h_i_frag;
|
||||
#define i_fsize osd2.hurd2.h_i_fsize;
|
||||
#define i_uid_high osd2.hurd2.h_i_uid_high
|
||||
#define i_gid_high osd2.hurd2.h_i_gid_high
|
||||
#define i_author osd2.hurd2.h_i_author
|
||||
|
||||
#elif defined(__masix__)
|
||||
|
||||
#define i_reserved1 osd1.masix1.m_i_reserved1
|
||||
#define i_frag osd2.masix2.m_i_frag
|
||||
#define i_fsize osd2.masix2.m_i_fsize
|
||||
#define i_reserved2 osd2.masix2.m_i_reserved2
|
||||
|
||||
#endif /* defined(__KERNEL__) || defined(__linux__) */
|
||||
|
||||
/*
|
||||
* File system states
|
||||
*/
|
||||
#define EXT3_VALID_FS 0x0001 /* Unmounted cleanly */
|
||||
#define EXT3_ERROR_FS 0x0002 /* Errors detected */
|
||||
#define EXT3_ORPHAN_FS 0x0004 /* Orphans being recovered */
|
||||
|
||||
/*
|
||||
* Mount flags
|
||||
*/
|
||||
#define EXT3_MOUNT_CHECK 0x0001 /* Do mount-time checks */
|
||||
#define EXT3_MOUNT_GRPID 0x0004 /* Create files with directory's group */
|
||||
#define EXT3_MOUNT_DEBUG 0x0008 /* Some debugging messages */
|
||||
#define EXT3_MOUNT_ERRORS_CONT 0x0010 /* Continue on errors */
|
||||
#define EXT3_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */
|
||||
#define EXT3_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */
|
||||
#define EXT3_MOUNT_MINIX_DF 0x0080 /* Mimics the Minix statfs */
|
||||
#define EXT3_MOUNT_NOLOAD 0x0100 /* Don't use existing journal*/
|
||||
#define EXT3_MOUNT_ABORT 0x0200 /* Fatal error detected */
|
||||
#define EXT3_MOUNT_DATA_FLAGS 0x0C00 /* Mode for data writes: */
|
||||
#define EXT3_MOUNT_JOURNAL_DATA 0x0400 /* Write data to journal */
|
||||
#define EXT3_MOUNT_ORDERED_DATA 0x0800 /* Flush data before commit */
|
||||
#define EXT3_MOUNT_WRITEBACK_DATA 0x0C00 /* No data ordering */
|
||||
#define EXT3_MOUNT_UPDATE_JOURNAL 0x1000 /* Update the journal format */
|
||||
#define EXT3_MOUNT_NO_UID32 0x2000 /* Disable 32-bit UIDs */
|
||||
|
||||
/* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
|
||||
#ifndef _LINUX_EXT2_FS_H
|
||||
#define clear_opt(o, opt) o &= ~EXT3_MOUNT_##opt
|
||||
#define set_opt(o, opt) o |= EXT3_MOUNT_##opt
|
||||
#define test_opt(sb, opt) ((sb)->u.ext3_sb.s_mount_opt & \
|
||||
EXT3_MOUNT_##opt)
|
||||
#else
|
||||
#define EXT2_MOUNT_NOLOAD EXT3_MOUNT_NOLOAD
|
||||
#define EXT2_MOUNT_ABORT EXT3_MOUNT_ABORT
|
||||
#endif
|
||||
|
||||
#define ext3_set_bit ext2_set_bit
|
||||
#define ext3_clear_bit ext2_clear_bit
|
||||
#define ext3_test_bit ext2_test_bit
|
||||
#define ext3_find_first_zero_bit ext2_find_first_zero_bit
|
||||
#define ext3_find_next_zero_bit ext2_find_next_zero_bit
|
||||
|
||||
/*
|
||||
* Maximal mount counts between two filesystem checks
|
||||
*/
|
||||
#define EXT3_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */
|
||||
#define EXT3_DFL_CHECKINTERVAL 0 /* Don't use interval check */
|
||||
|
||||
/*
|
||||
* Behaviour when detecting errors
|
||||
*/
|
||||
#define EXT3_ERRORS_CONTINUE 1 /* Continue execution */
|
||||
#define EXT3_ERRORS_RO 2 /* Remount fs read-only */
|
||||
#define EXT3_ERRORS_PANIC 3 /* Panic */
|
||||
#define EXT3_ERRORS_DEFAULT EXT3_ERRORS_CONTINUE
|
||||
|
||||
/*
|
||||
* Structure of the super block
|
||||
*/
|
||||
struct ext3_super_block {
|
||||
/*00*/ ULONG s_inodes_count; /* Inodes count */
|
||||
ULONG s_blocks_count; /* Blocks count */
|
||||
ULONG s_r_blocks_count; /* Reserved blocks count */
|
||||
ULONG s_free_blocks_count; /* Free blocks count */
|
||||
/*10*/ ULONG s_free_inodes_count; /* Free inodes count */
|
||||
ULONG s_first_data_block; /* First Data Block */
|
||||
ULONG s_log_block_size; /* Block size */
|
||||
LONG s_log_frag_size; /* Fragment size */
|
||||
/*20*/ ULONG s_blocks_per_group; /* # Blocks per group */
|
||||
ULONG s_frags_per_group; /* # Fragments per group */
|
||||
ULONG s_inodes_per_group; /* # Inodes per group */
|
||||
ULONG s_mtime; /* Mount time */
|
||||
/*30*/ ULONG s_wtime; /* Write time */
|
||||
USHORT s_mnt_count; /* Mount count */
|
||||
SHORT s_max_mnt_count; /* Maximal mount count */
|
||||
USHORT s_magic; /* Magic signature */
|
||||
USHORT s_state; /* File system state */
|
||||
USHORT s_errors; /* Behaviour when detecting errors */
|
||||
USHORT s_minor_rev_level; /* minor revision level */
|
||||
/*40*/ ULONG s_lastcheck; /* time of last check */
|
||||
ULONG s_checkinterval; /* max. time between checks */
|
||||
ULONG s_creator_os; /* OS */
|
||||
ULONG s_rev_level; /* Revision level */
|
||||
/*50*/ USHORT s_def_resuid; /* Default uid for reserved blocks */
|
||||
USHORT s_def_resgid; /* Default gid for reserved blocks */
|
||||
/*
|
||||
* These fields are for EXT3_DYNAMIC_REV superblocks only.
|
||||
*
|
||||
* Note: the difference between the compatible feature set and
|
||||
* the incompatible feature set is that if there is a bit set
|
||||
* in the incompatible feature set that the kernel doesn't
|
||||
* know about, it should refuse to mount the filesystem.
|
||||
*
|
||||
* e2fsck's requirements are more strict; if it doesn't know
|
||||
* about a feature in either the compatible or incompatible
|
||||
* feature set, it must abort and not try to meddle with
|
||||
* things it doesn't understand...
|
||||
*/
|
||||
ULONG s_first_ino; /* First non-reserved inode */
|
||||
USHORT s_inode_size; /* size of inode structure */
|
||||
USHORT s_block_group_nr; /* block group # of this superblock */
|
||||
ULONG s_feature_compat; /* compatible feature set */
|
||||
/*60*/ ULONG s_feature_incompat; /* incompatible feature set */
|
||||
ULONG s_feature_ro_compat; /* readonly-compatible feature set */
|
||||
/*68*/ UCHAR s_uuid[16]; /* 128-bit uuid for volume */
|
||||
/*78*/ char s_volume_name[16]; /* volume name */
|
||||
/*88*/ char s_last_mounted[64]; /* directory where last mounted */
|
||||
/*C8*/ ULONG s_algorithm_usage_bitmap; /* For compression */
|
||||
/*
|
||||
* Performance hints. Directory preallocation should only
|
||||
* happen if the EXT3_FEATURE_COMPAT_DIR_PREALLOC flag is on.
|
||||
*/
|
||||
UCHAR s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
|
||||
UCHAR s_prealloc_dir_blocks; /* Nr to preallocate for dirs */
|
||||
USHORT s_padding1;
|
||||
/*
|
||||
* Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set.
|
||||
*/
|
||||
/*D0*/ UCHAR s_journal_uuid[16]; /* uuid of journal superblock */
|
||||
/*E0*/ ULONG s_journal_inum; /* inode number of journal file */
|
||||
ULONG s_journal_dev; /* device number of journal file */
|
||||
ULONG s_last_orphan; /* start of list of inodes to delete */
|
||||
|
||||
/*EC*/ ULONG s_reserved[197]; /* Padding to the end of the block */
|
||||
};
|
||||
|
||||
#ifdef __KERNEL__
|
||||
#define EXT3_SB(sb) (&((sb)->u.ext3_sb))
|
||||
#define EXT3_I(inode) (&((inode)->u.ext3_i))
|
||||
#else
|
||||
/* Assume that user mode programs are passing in an ext3fs superblock, not
|
||||
* a kernel struct super_block. This will allow us to call the feature-test
|
||||
* macros from user land. */
|
||||
#define EXT3_SB(sb) (sb)
|
||||
#endif
|
||||
|
||||
#define NEXT_ORPHAN(inode) (inode)->u.ext3_i.i_dtime
|
||||
|
||||
/*
|
||||
* Codes for operating systems
|
||||
*/
|
||||
#define EXT3_OS_LINUX 0
|
||||
#define EXT3_OS_HURD 1
|
||||
#define EXT3_OS_MASIX 2
|
||||
#define EXT3_OS_FREEBSD 3
|
||||
#define EXT3_OS_LITES 4
|
||||
|
||||
/*
|
||||
* Revision levels
|
||||
*/
|
||||
#define EXT3_GOOD_OLD_REV 0 /* The good old (original) format */
|
||||
#define EXT3_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
|
||||
|
||||
#define EXT3_CURRENT_REV EXT3_GOOD_OLD_REV
|
||||
#define EXT3_MAX_SUPP_REV EXT3_DYNAMIC_REV
|
||||
|
||||
#define EXT3_GOOD_OLD_INODE_SIZE 128
|
||||
|
||||
/*
|
||||
* Feature set definitions
|
||||
*/
|
||||
|
||||
#define EXT3_HAS_COMPAT_FEATURE(sb,mask) \
|
||||
( EXT3_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
|
||||
#define EXT3_HAS_RO_COMPAT_FEATURE(sb,mask) \
|
||||
( EXT3_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
|
||||
#define EXT3_HAS_INCOMPAT_FEATURE(sb,mask) \
|
||||
( EXT3_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
|
||||
#define EXT3_SET_COMPAT_FEATURE(sb,mask) \
|
||||
EXT3_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
|
||||
#define EXT3_SET_RO_COMPAT_FEATURE(sb,mask) \
|
||||
EXT3_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
|
||||
#define EXT3_SET_INCOMPAT_FEATURE(sb,mask) \
|
||||
EXT3_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
|
||||
#define EXT3_CLEAR_COMPAT_FEATURE(sb,mask) \
|
||||
EXT3_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
|
||||
#define EXT3_CLEAR_RO_COMPAT_FEATURE(sb,mask) \
|
||||
EXT3_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
|
||||
#define EXT3_CLEAR_INCOMPAT_FEATURE(sb,mask) \
|
||||
EXT3_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
|
||||
|
||||
#define EXT3_FEATURE_COMPAT_DIR_PREALLOC 0x0001
|
||||
#define EXT3_FEATURE_COMPAT_IMAGIC_INODES 0x0002
|
||||
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
|
||||
#define EXT3_FEATURE_COMPAT_EXT_ATTR 0x0008
|
||||
#define EXT3_FEATURE_COMPAT_RESIZE_INODE 0x0010
|
||||
#define EXT3_FEATURE_COMPAT_DIR_INDEX 0x0020
|
||||
|
||||
#define EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
|
||||
#define EXT3_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
|
||||
#define EXT3_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
|
||||
|
||||
#define EXT3_FEATURE_INCOMPAT_COMPRESSION 0x0001
|
||||
#define EXT3_FEATURE_INCOMPAT_FILETYPE 0x0002
|
||||
#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
|
||||
#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
|
||||
|
||||
#define EXT3_FEATURE_COMPAT_SUPP 0
|
||||
/*#define EXT3_FEATURE_INCOMPAT_SUPP (EXT3_FEATURE_INCOMPAT_FILETYPE| \
|
||||
EXT3_FEATURE_INCOMPAT_RECOVER)*/
|
||||
#define EXT3_FEATURE_INCOMPAT_SUPP (EXT3_FEATURE_INCOMPAT_FILETYPE)
|
||||
#define EXT3_FEATURE_RO_COMPAT_SUPP (EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER| \
|
||||
EXT3_FEATURE_RO_COMPAT_LARGE_FILE| \
|
||||
EXT3_FEATURE_RO_COMPAT_BTREE_DIR)
|
||||
|
||||
/*
|
||||
* Default values for user and/or group using reserved blocks
|
||||
*/
|
||||
#define EXT3_DEF_RESUID 0
|
||||
#define EXT3_DEF_RESGID 0
|
||||
|
||||
/*
|
||||
* Structure of a directory entry
|
||||
*/
|
||||
#define EXT3_NAME_LEN 255
|
||||
|
||||
struct ext3_dir_entry {
|
||||
ULONG inode; /* Inode number */
|
||||
USHORT rec_len; /* Directory entry length */
|
||||
USHORT name_len; /* Name length */
|
||||
CHAR name[EXT3_NAME_LEN]; /* File name */
|
||||
};
|
||||
|
||||
/*
|
||||
* The new version of the directory entry. Since EXT3 structures are
|
||||
* stored in intel byte order, and the name_len field could never be
|
||||
* bigger than 255 chars, it's safe to reclaim the extra byte for the
|
||||
* file_type field.
|
||||
*/
|
||||
struct ext3_dir_entry_2 {
|
||||
ULONG inode; /* Inode number */
|
||||
USHORT rec_len; /* Directory entry length */
|
||||
UCHAR name_len; /* Name length */
|
||||
UCHAR file_type;
|
||||
CHAR name[EXT3_NAME_LEN]; /* File name */
|
||||
};
|
||||
|
||||
/*
|
||||
* Ext3 directory file types. Only the low 3 bits are used. The
|
||||
* other bits are reserved for now.
|
||||
*/
|
||||
#define EXT3_FT_UNKNOWN 0
|
||||
#define EXT3_FT_REG_FILE 1
|
||||
#define EXT3_FT_DIR 2
|
||||
#define EXT3_FT_CHRDEV 3
|
||||
#define EXT3_FT_BLKDEV 4
|
||||
#define EXT3_FT_FIFO 5
|
||||
#define EXT3_FT_SOCK 6
|
||||
#define EXT3_FT_SYMLINK 7
|
||||
|
||||
#define EXT3_FT_MAX 8
|
||||
|
||||
/*
|
||||
* EXT3_DIR_PAD defines the directory entries boundaries
|
||||
*
|
||||
* NOTE: It must be a multiple of 4
|
||||
*/
|
||||
#define EXT3_DIR_PAD 4
|
||||
#define EXT3_DIR_ROUND (EXT3_DIR_PAD - 1)
|
||||
#define EXT3_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT3_DIR_ROUND) & \
|
||||
~EXT3_DIR_ROUND)
|
||||
|
||||
#ifdef __KERNEL__
|
||||
/*
|
||||
* Describe an inode's exact location on disk and in memory
|
||||
*/
|
||||
struct ext3_iloc
|
||||
struct ext2_dirent
|
||||
{
|
||||
struct buffer_head *bh;
|
||||
struct ext3_inode *raw_inode;
|
||||
unsigned long block_group;
|
||||
ULONG inode;
|
||||
USHORT direntlen;
|
||||
UCHAR namelen;
|
||||
UCHAR filetype;
|
||||
CHAR name[EXT2_NAME_LEN];
|
||||
};
|
||||
|
||||
/*
|
||||
* End of code from grub/fs/ext2.c
|
||||
*/
|
||||
|
||||
typedef struct ext2_sblock EXT2_SUPER_BLOCK, *PEXT2_SUPER_BLOCK;
|
||||
typedef struct ext2_inode EXT2_INODE, *PEXT2_INODE;
|
||||
typedef struct ext2_block_group EXT2_GROUP_DESC, *PEXT2_GROUP_DESC;
|
||||
typedef struct ext2_dirent EXT2_DIR_ENTRY, *PEXT2_DIR_ENTRY;
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
/* Special inode numbers. */
|
||||
#define EXT2_ROOT_INO 2
|
||||
|
||||
#endif /* _LINUX_EXT3_FS_H */
|
||||
/* Feature set definitions. */
|
||||
#define EXT3_FEATURE_INCOMPAT_SUPP 0x0002
|
||||
|
||||
/* Log2 size of ext2 block in bytes. */
|
||||
#define LOG2_BLOCK_SIZE(sb) (sb->log2_block_size + 10)
|
||||
|
||||
/* The size of an ext2 block in bytes. */
|
||||
#define EXT2_BLOCK_SIZE(sb) (1 << LOG2_BLOCK_SIZE(sb))
|
||||
|
||||
typedef struct ext3_super_block EXT2_SUPER_BLOCK, *PEXT2_SUPER_BLOCK;
|
||||
typedef struct ext3_inode EXT2_INODE, *PEXT2_INODE;
|
||||
typedef struct ext3_group_desc EXT2_GROUP_DESC, *PEXT2_GROUP_DESC;
|
||||
typedef struct ext3_dir_entry_2 EXT2_DIR_ENTRY, *PEXT2_DIR_ENTRY;
|
||||
/* The revision level. */
|
||||
#define EXT2_REVISION(sb) (sb->revision_level)
|
||||
|
||||
// EXT2_INODE::i_mode values
|
||||
/* The inode size. */
|
||||
#define EXT2_INODE_SIZE(sb) (EXT2_REVISION(sb) == EXT2_GOOD_OLD_REVISION \
|
||||
? EXT2_GOOD_OLD_INODE_SIZE \
|
||||
: sb->inode_size)
|
||||
|
||||
#define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof(struct ext2_block_group))
|
||||
|
||||
// EXT2_INODE::mode values
|
||||
#define EXT2_S_IRWXO 0x0007 // Other mask
|
||||
#define EXT2_S_IXOTH 0x0001 // ---------x execute
|
||||
#define EXT2_S_IWOTH 0x0002 // --------w- write
|
||||
|
|
@ -657,15 +224,15 @@ typedef struct ext3_dir_entry_2 EXT2_DIR_ENTRY, *PEXT2_DIR_ENTRY;
|
|||
#define EXT2_S_IFLNK 0xA000 // Symbolic link
|
||||
#define EXT2_S_IFSOCK 0xC000 // Socket
|
||||
|
||||
#define FAST_SYMLINK_MAX_NAME_SIZE (EXT3_N_BLOCKS * sizeof(ULONG)) /* 60 bytes */
|
||||
#define FAST_SYMLINK_MAX_NAME_SIZE 60
|
||||
|
||||
typedef struct
|
||||
{
|
||||
ULONGLONG FileSize; // File size
|
||||
ULONGLONG FilePointer; // File pointer
|
||||
ULONGLONG FileSize; // File size
|
||||
ULONGLONG FilePointer; // File pointer
|
||||
ULONG* FileBlockList; // File block list
|
||||
UCHAR DriveNumber; // Drive number of open file
|
||||
EXT2_INODE Inode; // File's inode
|
||||
UCHAR DriveNumber; // Drive number of open file
|
||||
EXT2_INODE Inode; // File's inode
|
||||
} EXT2_FILE_INFO, * PEXT2_FILE_INFO;
|
||||
|
||||
const DEVVTBL* Ext2Mount(ULONG DeviceId);
|
||||
|
|
|
|||
Loading…
Reference in a new issue