iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fs/ntfs3: Fix directory element type detection

Browse Source 
Calling stat() from userspace correctly identified junctions in an NTFS
partition as symlinks, but using readdir() and iterating through the
directory containing the same junction did not identify the junction
as a symlink.

When emitting directory contents, check FILE_ATTRIBUTE_REPARSE_POINT
attribute to detect junctions and report them as links.

Signed-off-by: Gabriel Marcano <gabemarcano@yahoo.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
This commit is contained in:
Gabriel Marcano 2023-09-12 21:50:32 -07:00 committed by Konstantin Komarov
parent 1f9b94af92
commit 85a4780dc9
No known key found for this signature in database
GPG Key ID: A9B0331F832407B6
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
fs/ntfs3/dir.c
View File

@ -309,7 +309,11 @@ static inline int ntfs_filldir(struct ntfs_sb_info *sbi, struct ntfs_inode *ni,
return 0;
}
dt_type = (fname->dup.fa & FILE_ATTRIBUTE_DIRECTORY) ? DT_DIR : DT_REG;
/* NTFS: symlinks are "dir + reparse" or "file + reparse" */
if (fname->dup.fa & FILE_ATTRIBUTE_REPARSE_POINT)
dt_type = DT_LNK;
else
dt_type = (fname->dup.fa & FILE_ATTRIBUTE_DIRECTORY) ? DT_DIR : DT_REG;
return !dir_emit(ctx, (s8 *)name, name_len, ino, dt_type);
}