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ksmbd: Return STATUS_OBJECT_PATH_NOT_FOUND if smb2_creat() returns ENOENT

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Both Windows 10's SMB server and samba return STATUS_OBJECT_PATH_NOT_FOUND
when trying to access a nonexistent path.

This fixes Windows 10 File History tool. The latter relies on the server
returning STATUS_OBJECT_PATH_NOT_FOUND to figure out what part of the
target path needs to be created. Returning STATUS_OBJECT_NAME_INVALID
will make it stop and display an error to the user.

Signed-off-by: Marios Makassikis <mmakassikis@freebox.fr>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Marios Makassikis 2021-07-27 09:24:51 +09:00 committed by Namjae Jeon
parent 1d904eaf3f
commit d337a44e42
1 changed files with 6 additions and 1 deletions
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7
fs/ksmbd/smb2pdu.c
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@ -2768,8 +2768,13 @@ int smb2_open(struct ksmbd_work *work)
if (!file_present) {
rc = smb2_creat(work, &path, name, open_flags, posix_mode,
req->CreateOptions & FILE_DIRECTORY_FILE_LE);
if (rc)
if (rc) {
if (rc == -ENOENT) {
rc = -EIO;
rsp->hdr.Status = STATUS_OBJECT_PATH_NOT_FOUND;
}
goto err_out;
}
created = true;
user_ns = mnt_user_ns(path.mnt);