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fs/ntfs3: Fix directory element type detection

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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
1 changed files with 5 additions and 1 deletions
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6
fs/ntfs3/dir.c
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@@ -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);
}