Commit graph

16 commits

Author SHA1 Message Date
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
007d3d382a
[NTFS] Don't dereference NULL IRP
CID 1427057
2017-12-31 10:38:58 +01:00
Trevor Thompson
d484d91eba [NTFS] - Allow for resizing an attribute in the middle of a file record. Add a helper function and minor improvements:
AddRun() - Allow for resizing the size of the data runs when the attribute isn't the last in the file record. Fix some comments.
CreateIndexBufferFromBTreeNode(), CreateIndexRootFromBTree - Fix math of IndexSize when checking if the index buffer is too large.
InternalSetResidentAttributeLength() - Allow changing the length of an attribute in the middle of a file record. Adjust the position of every attribute after the one being resized.
+MoveAttributes() - Moves a block of attributes to a new location in the file Record.
PrintAllVCNs() - Add consideration for an index allocation with a size of 0.
WriteAttribute() - Add optional parameter for a pointer to the file record being written to. If passed a file record, WriteAttribute() will skip reading the file record from disk, and will update the file record in memory before returning. This helps callers that use the file record after writing an attribute to stay in-sync with what's on disk.

svn path=/branches/GSoC_2016/NTFS/; revision=75554
2017-12-10 11:15:13 +01:00
Trevor Thompson
4dfcd1d582 [NTFS] - Refactor to allow the copy of the attribute stored in NTFS_ATTR_CONTEXT to have a dynamic length; change Record member from an NTFS_ATTR_RECORD to a PNTFS_ATTR_RECORD. Rename it pRecord to reinforce the change. Fix some bugs related to the record size changing.
-PrepareAttributeContext() - update to allocate memory for pRecord. Don't assume allocations are succeeding.
-ReleaseAttributeContext() - update to free memory for pRecord.
-InternalSetResidentAttributeLength() - Increase size of AttrContext->pRecord as needed. Update to return an NTSTATUS.
-SetResidentAttributeDataLength() - Fix bug that could occur when migrating resident attributes to non-resident if AttrContext->pRecord is too small for the new attribute.
-AddRun() - Fix a bug by reallocating AttrContext->pRecord if the record needs to be enlarged.

svn path=/branches/GSoC_2016/NTFS/; revision=75493
2017-12-10 11:15:11 +01:00
Trevor Thompson
f2e47474f0 [NTFS] - Fix index entries storing the wrong allocated file size when the file is resident. Fix a typo in a DPRINT.
svn path=/branches/GSoC_2016/NTFS/; revision=75479
2017-12-10 11:15:09 +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
38c947b7ab [NTFS] - Add some minor fixes and improvements:
Improve, add, or fix some DPRINTs. In particular, ULONG's should use %lu, not %u. Also, don't be silent about filesystem corruption.
NtfsFindMftRecord() - move CaseSensitive parameter before output parameter in parameter list.

svn path=/branches/GSoC_2016/NTFS/; revision=75199
2017-12-10 11:14:40 +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
4ca9151300 [NTFS] - Decrease debug spam
svn path=/branches/GSoC_2016/NTFS/; revision=74694
2017-12-10 11:14:24 +01:00
Trevor Thompson
52b9f46776 [NTFS] - Commit early results of a small restructuring effort:
-Add a new member to the NTFS_ATTR_CONTEXT struct, a LARGE_MCB. This allows an attribute context to describe the cluster mapping of a non-resident file while allowing that mapping to change dynamically, without the context itself needing to be resized. This fixes problems which sometimes arose from resizing files.
-Remove hacky code from NtfsWriteFile() for dealing with "stale" contexts. This fixes that issue.
-Update SetDataAttributeLength(), PrepareAttributeContext(), ReleaseAttributeContext(), FreeClusters(), and AddRun() for the new member.
-Update ReadAttribute() and WriteAttribute() to work with the changed structure. A very-soon-to-come commit will overhaul these functions so they'll operate directly on the LARGE_MCB, instead of converting to and from a packed list of data runs. (Sparse files are broken until then.)
-Rename "RunBufferOffset" to "RunBufferSize" in several places where appropriate.
-Fix, improve, and add some comments.

svn path=/branches/GSoC_2016/NTFS/; revision=74523
2017-12-10 11:14:16 +01:00
Trevor Thompson
afe40eb054 [NTFS]
Implement AddRun(). Add support functions and documentation.
+ConvertDataRunsToLargeMCB()
+ConvertLargeMCBToDataRuns()
*SetAttributeDataLength(), *NtfsWriteFile() - Update for AddRun() implementation. Add hack to SetAttributeDataLength() to allow notepad.exe to save files until freeing clusters is implemented.

svn path=/branches/GSoC_2016/NTFS/; revision=71942
2017-12-10 11:14:03 +01:00
Trevor Thompson
f47efca89f [NTFS]
Remove unused parameter from SetAttributeDataLength.

svn path=/branches/GSoC_2016/NTFS/; revision=71677
2017-12-10 11:13:30 +01:00
Trevor Thompson
a7a2c0d734 [NTFS]
Update a file's size in the relevant $FILE_NAME attribute of the index entry in the parent directory.
+UpdateFileNameRecord() - Searches a parent directory for the proper index entry, then updates the file sizes in that entry.
+UpdateIndexEntryFileNameSize() - Recursively searches directory index and applies the size update.

svn path=/branches/GSoC_2016/NTFS/; revision=71664
2017-12-10 11:13:28 +01:00
Trevor Thompson
ba33b9faac [NTFS]
When writing to a file, increase the file size if trying to write past the end.
*FindAttribute() has been given an optional pointer to a ULONG that will receive the offset of the found attribute from the beginning of the record. This is to allow for found attributes to be written back into their file records.
+SetAttributeDataLength()
+UpdateFileRecord() - Updates a file record in the master file table at a given index.
+AddFixupArray() - Prepares a file record or directory index for writing to the disk.

svn path=/branches/GSoC_2016/NTFS/; revision=71660
2017-12-10 11:13:25 +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/rw.c (Browse further)