diff options
author | Darrick J. Wong <djwong@kernel.org> | 2024-11-03 20:18:51 -0800 |
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committer | Darrick J. Wong <djwong@kernel.org> | 2024-11-05 13:38:31 -0800 |
commit | 7297fd0bebbd70efd12f72632a0f3ac49a8f59fe (patch) | |
tree | 946cb411a3ef830bfb2145569288c00ba6ec7507 /fs/xfs/libxfs/xfs_metafile.h | |
parent | c555dd9b8c2d8f09ee31b17fc3ce059bacb4e359 (diff) |
xfs: enforce metadata inode flag
Add checks for the metadata inode flag so that we don't ever leak
metadata inodes out to userspace, and we don't ever try to read a
regular inode as metadata.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_metafile.h')
-rw-r--r-- | fs/xfs/libxfs/xfs_metafile.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_metafile.h b/fs/xfs/libxfs/xfs_metafile.h index 60fe18906112..c66b0c51b461 100644 --- a/fs/xfs/libxfs/xfs_metafile.h +++ b/fs/xfs/libxfs/xfs_metafile.h @@ -6,6 +6,17 @@ #ifndef __XFS_METAFILE_H__ #define __XFS_METAFILE_H__ +/* All metadata files must have these flags set. */ +#define XFS_METAFILE_DIFLAGS (XFS_DIFLAG_IMMUTABLE | \ + XFS_DIFLAG_SYNC | \ + XFS_DIFLAG_NOATIME | \ + XFS_DIFLAG_NODUMP | \ + XFS_DIFLAG_NODEFRAG) + +/* All metadata directories must have these flags set. */ +#define XFS_METADIR_DIFLAGS (XFS_METAFILE_DIFLAGS | \ + XFS_DIFLAG_NOSYMLINKS) + /* Code specific to kernel/userspace; must be provided externally. */ int xfs_trans_metafile_iget(struct xfs_trans *tp, xfs_ino_t ino, |