diff mbox series

[v2] ksmbd: not allow to open file if delelete on close bit is set

Message ID 20231009151153.7360-1-linkinjeon@kernel.org
State New
Headers show
Series [v2] ksmbd: not allow to open file if delelete on close bit is set | expand

Commit Message

Namjae Jeon Oct. 9, 2023, 3:11 p.m. UTC 
Cthon test fail with the following error.

check for proper open/unlink operation
nfsjunk files before unlink:
  -rwxr-xr-x 1 root root 0  9월 25 11:03 ./nfs2y8Jm9
./nfs2y8Jm9 open; unlink ret = 0
nfsjunk files after unlink:
  -rwxr-xr-x 1 root root 0  9월 25 11:03 ./nfs2y8Jm9
data compare ok
nfsjunk files after close:
  ls: cannot access './nfs2y8Jm9': No such file or directory
special tests failed

Cthon expect to second unlink failure when file is already unlinked.
ksmbd can not allow to open file if flags of ksmbd inode is set with
S_DEL_ON_CLS flags.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
---
 v2:
   return STATUS_DELETE_PENDING error response instead of STATUS_OBJECT_NAME_INVALID. 
 fs/smb/server/vfs_cache.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/fs/smb/server/vfs_cache.c b/fs/smb/server/vfs_cache.c
index c4b80ab7df74..1c5c39733652 100644
--- a/fs/smb/server/vfs_cache.c
+++ b/fs/smb/server/vfs_cache.c
@@ -106,7 +106,7 @@  int ksmbd_query_inode_status(struct inode *inode)
 	ci = __ksmbd_inode_lookup(inode);
 	if (ci) {
 		ret = KSMBD_INODE_STATUS_OK;
-		if (ci->m_flags & S_DEL_PENDING)
+		if (ci->m_flags & (S_DEL_PENDING | S_DEL_ON_CLS))
 			ret = KSMBD_INODE_STATUS_PENDING_DELETE;
 		atomic_dec(&ci->m_count);
 	}
@@ -116,7 +116,7 @@  int ksmbd_query_inode_status(struct inode *inode)
 
 bool ksmbd_inode_pending_delete(struct ksmbd_file *fp)
 {
-	return (fp->f_ci->m_flags & S_DEL_PENDING);
+	return (fp->f_ci->m_flags & (S_DEL_PENDING | S_DEL_ON_CLS));
 }
 
 void ksmbd_set_inode_pending_delete(struct ksmbd_file *fp)