Commit graph

24 commits

Author SHA1 Message Date
Victor Perevertkin 34593d933b
[FORMATTING][NTOS][HAL][DRIVERS][SDK] Fix trailing spaces 2021-06-11 15:33:08 +03:00
Victor Perevertkin 1552434940 [NTFS] Do not print debug message for every function call by default 2019-06-15 19:24:27 +03:00
Pierre Schweitzer 216a2cae73
[NTFS] Use LookasideList allocations for FILE_RECORD_HEADER.
TODO: use a specific tag

This, and previous commit, should speed up a bit the driver until caching gets implemented
2017-12-31 14:14:24 +01:00
Pierre Schweitzer 7a88e3bfd4
[NTFS] Don't leak memory in case of failure while creating a directory
CID 1427065
2017-12-31 10:38:58 +01:00
Trevor Thompson 9a91a51f17 [NTFS] - Fix for C89 compliance.
svn path=/branches/GSoC_2016/NTFS/; revision=75693
2017-12-10 11:15:19 +01:00
Trevor Thompson b033f00f58 [NTFS] - Add support for directory creation. Add some helper functions, some comments, and some fixes.
+AddIndexRoot() - Creates an $INDEX_ROOT attribute and adds it to a file record.
AddNewMftEntry() - Make sure the buffer used by RtlInitializeBitmap() is ULONG-aligned, and a ULONG-multiple in size, per MSDN.
AllocateIndexNode() - Calculate BytesNeeded correctly. Read $BITMAP attribute before increasing its length, in anticipation of a future commit that will check for a free bit before assigning a new index record to the end of the allocation. Use appropriate Set*AttributeDataLength() function, as $BITMAP can be resident or non-resident.
B_TREE_FILENAME_NODE - Give two members more accurate names: change "ExistsOnDisk" member to "HasValidVCN" and rename "NodeNumber" member "VCN."
+CreateEmptyBTree() - Creates a B-Tree to represent an empty directory (for AddIndexRoot).
+NtfsCreateEmptyFileRecord() - Creates an empty file record in memory, with no attributes.
CreateIndexRootFromBTree() - Fix TotalSizeOfEntries calculation.
+NtfsCreateDirectory() - Creates a file record for an empty directory and adds it to the mft.

svn path=/branches/GSoC_2016/NTFS/; revision=75692
2017-12-10 11:15:17 +01:00
Trevor Thompson c63e7e54b5 [NTFS] - When creating files:
-Don't add a preceding backslash when creating files on root.
-Use NTFS_FILE_NAME_POSIX name type if CaseSensitive option is specified.
-Don't try to create a file when a folder is requested (folder creation is still TODO).

svn path=/branches/GSoC_2016/NTFS/; revision=75671
2017-12-10 11:15:16 +01:00
Trevor Thompson 9cef425464 [NTFS] - After creating a new file, update creation disposition before calling NtfsCreateFile() recursively. This fixes creating a file via right-clicking in a folder.
svn path=/branches/GSoC_2016/NTFS/; revision=75423
2017-12-10 11:15:03 +01:00
Trevor Thompson 935fcd1b35 [NTFS] - Fix some more issues, including remaining issues marked as "unresolved" from CR-123:
-Add define for indexed flag for resident attributes, RA_INDEXED.
-CreateBTreeFromIndex() - Don't try to read index entries beyond attribute length.
-Move NtfsAddFileNameToDirectory() from dirctl.c to mft.c (no changes to function).
-SetResidentAttributeDataLength() - Don't try to free AttribData if it hasn't been allocated. Cast IndexRecord to PUCHAR for WriteAttribute(), and cast BitmapData to PCHAR for ReadAttribute() (make gcc happy).
-Replace magic number 16 with a define, NTFS_FILE_FIRST_USER_FILE.

svn path=/branches/GSoC_2016/NTFS/; revision=75371
2017-12-10 11:15:01 +01:00
Trevor Thompson 430ce0a9e3 [NTFS] - Fix some formatting / style issues, per CR-123.
svn path=/branches/GSoC_2016/NTFS/; revision=75290
2017-12-10 11:15:00 +01:00
Trevor Thompson 5ab24a5aae [NTFS] - Add a few fixes and improvements, most from CR-123:
-Add ATTR_RECORD_ALIGNMENT define to replace magic value of 8 when we need to adjust an attribute's beginning or length.
-Don't use int's.
-GetPackedByteCount() - Remove unused "bytes" variable.

svn path=/branches/GSoC_2016/NTFS/; revision=75288
2017-12-10 11:14:58 +01:00
Trevor Thompson 39a06fae0d [NTFS] - Add some fixes and improvements to create.c, dirctl.c and fcb.c from CR-123:
-NtfsOpenFile() - Replace an ExFreePool() with ExFreePoolWithTag().
-NtfsCreateFile() - Fix broken cast with BooleanFlagOn() macro.
-NtfsAddFilenameToDirectory() - Remove an extra cast. Return an error if we fail to allocate I30IndexRoot. 
-NtfsGetNextPathElement(), NtfsWSubString(), NtfsGetFCBForFile() - Use PCWSTR in place of const PWCHAR or PWCHAR  where it makes sense.

svn path=/branches/GSoC_2016/NTFS/; revision=75281
2017-12-10 11:14:53 +01:00
Trevor Thompson 2dc4938549 [NTFS] - Fix a couple of issues spotted by Thomas: Maintain alphabetical ordering of CMakeLists.txt, fix casts to BOOLEAN with BooleanFlagOn macro.
svn path=/branches/GSoC_2016/NTFS/; revision=75224
2017-12-10 11:14:43 +01:00
Trevor Thompson 54f5c3b6ec [NTFS] - Begin to implement B-Trees. Allow for creating several new files in a directory.
NtfsAddFilenameToDirectory() - Add CaseSensitive parameter. Update to use new B-Tree code: First, the index is read and converted to a B-Tree in memory. Next, a key for the new file is inserted into the tree. Finally, the tree is converted back to an index root attribute which is written to disk.
+btree.c - Includes functions related to B-Trees (AKA B*Trees).
ntfs.h - Added several structures for representing B-Trees in memory.
Known limitations: For simplicity, only trees with a depth of one are currently supported (i.e. an ordered list of filenames). Directories that have or will require an index allocation to store all their filenames are still TODO. As a consequence, the user will only be able to create about 6 files in a directory.

svn path=/branches/GSoC_2016/NTFS/; revision=75223
2017-12-10 11:14:42 +01:00
Trevor Thompson 948e91907a [NTFS] - Fix a mistake with AddFileName() from my last commit. Also, move CaseSensitive parameter before output parameters in the parameter list of several functions.
svn path=/branches/GSoC_2016/NTFS/; revision=75191
2017-12-10 11:14:35 +01:00
Trevor Thompson 032be02954 [NTFS] - Fix POSIX rules. Fix accessing long filenames created in Windows when 8dot3 name creation is disabled.
Whether or not a filename should be interpreted as case-sensitive is dependent on a flag passed to the driver when a file is created (opened); it's separate from the namespace associated with the file being accessed.

svn path=/branches/GSoC_2016/NTFS/; revision=75178
2017-12-10 11:14:34 +01:00
Trevor Thompson 98ddf610bc [NTFS] - Fix IncreaseMftSize(); check IrpContext to see if waiting for exclusive access to the MFT is allowed. As pointed out by Pierre.
svn path=/branches/GSoC_2016/NTFS/; revision=75170
2017-12-10 11:14:32 +01:00
Trevor Thompson 9ab86116a9 [NTFS] - Add support for expanding the master file table. Fix a bug with BrowseIndexEntries(). Improve diagnostic output.
-AddNewMftEntry() - Increase size of MFT as needed. Fix math for bitmap length. Don't assign file records to MFT indices 0x10 - 0x17; In Windows, these records aren't used unless they have to be, even though they are marked as unused in the bitmap.
+IncreaseMftSize() - Adds room for additional file records in the master file table.
-BrowseIndexEntries() - allow for the rare situation when a non-system file has an MFT index of 0x10.

svn path=/branches/GSoC_2016/NTFS/; revision=75056
2017-12-10 11:14:30 +01:00
Trevor Thompson e0048b1362 [NTFS] - Add the most basic support for file creation. Expand diagnostic output, especially in NtfsDumpIndexRootAttribute(). Replace an ExFreePool() with ExFreePoolWithTag().
AddFileName() - Add a parameter to receive the Mft index of the parent directory. Fix so the name of the file will be stored in the attribute, not the name of the directory.
NtfsCreateFile() - Open a file that was successfully created, instead of assuming failure.
NtfsCreateFileRecord() - Add the filename attribute of the created file to the parent directory's index.
+NtfsAddFilenameToDirectory() - Adds a $FILE_NAME attribute to a given directory index. Presently, a file can be created in an empty directory only.
AddNewMftEntry() - Add a parameter to receive the mft index where the new entry was stored.

svn path=/branches/GSoC_2016/NTFS/; revision=74970
2017-12-10 11:14:26 +01:00
Trevor Thompson 037d88201d [NTFS] - Disable write support by default. Enable it via the registry.
[BOOTDATA] - Add a commented-out section to hivesys.inf which can add the required key to enable NTFS write support.

svn path=/branches/GSoC_2016/NTFS/; revision=74685
2017-12-10 11:14:22 +01:00
Trevor Thompson 0409b3161e [NTFS] Add support for creating new MFT entries:
+AddStandardInformation(), +AddData(), +AddFileName() - Add attributes to a file record
+NtfsCreateFileRecord() - Creates a new file record and saves it to the MFT.
+AddNewMftEntry() - Adds a file record to the MFT.
NtfsCreateFile() - Modified to create a file record on a file-creation request (file creation is still unsupported; the created file needs to be added to the parent's directory index).
+SetFileRecordEnd() - Establishes a new file record size
UpdateFileRecord() - Improved documentation
InternalSetResidentAttributeLength() - Updated to use SetFileRecordEnd().

svn path=/branches/GSoC_2016/NTFS/; revision=74321
2017-12-10 11:14:14 +01:00
Trevor Thompson 84a1280fd6 [NTFS]
Allow for an existing file to be opened with FILE_OVERWRITE, FILE_OVERWRITE_IF, or FILE_SUPERSEDE dispositions, and truncate that file. This allows for a file to be opened and saved in Notepad.exe [provided that file is non-resident and its allocation size doesn't need to change].

svn path=/branches/GSoC_2016/NTFS/; revision=71680
2017-12-10 11:13:31 +01:00
Trevor Thompson 58a13831ef [NTFS]
Added minimal write support from CORE-10998 along with updates as suggested by CR-90.

svn path=/branches/GSoC_2016/NTFS/; revision=71224
2017-12-10 11:13:19 +01:00
Colin Finck c2c66aff7d Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys. 2017-10-03 07:45:34 +00:00
Renamed from reactos/drivers/filesystems/ntfs/create.c (Browse further)