This is a note to let you know that I've just added the patch titled
smb: client: fix FSCTL_GET_REPARSE_POINT against NetApp
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
smb-client-fix-fsctl_get_reparse_point-against-netap.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bea9b6c0e7a5a4119297070b10ca0c2ed9d01794
Author: Paulo Alcantara <pc@xxxxxxxxxxxxx>
Date: Thu Aug 1 18:12:39 2024 -0300
smb: client: fix FSCTL_GET_REPARSE_POINT against NetApp
[ Upstream commit ddecea00f87f0c46e9c8339a7c89fb2ff891521a ]
NetApp server requires the file to be open with FILE_READ_EA access in
order to support FSCTL_GET_REPARSE_POINT, otherwise it will return
STATUS_INVALID_DEVICE_REQUEST. It doesn't make any sense because
there's no requirement for FILE_READ_EA bit to be set nor
STATUS_INVALID_DEVICE_REQUEST being used for something other than
"unsupported reparse points" in MS-FSA.
To fix it and improve compatibility, set FILE_READ_EA & SYNCHRONIZE
bits to match what Windows client currently does.
Tested-by: Sebastian Steinbeisser <Sebastian.Steinbeisser@xxxxxx>
Acked-by: Tom Talpey <tom@xxxxxxxxxx>
Signed-off-by: Paulo Alcantara (Red Hat) <pc@xxxxxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c
index 28031c7ba6b19..15cbfec4c28c7 100644
--- a/fs/smb/client/smb2inode.c
+++ b/fs/smb/client/smb2inode.c
@@ -950,7 +950,8 @@ int smb2_query_path_info(const unsigned int xid,
cmds[num_cmds++] = SMB2_OP_GET_REPARSE;
oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
- FILE_READ_ATTRIBUTES | FILE_READ_EA,
+ FILE_READ_ATTRIBUTES |
+ FILE_READ_EA | SYNCHRONIZE,
FILE_OPEN, create_options |
OPEN_REPARSE_POINT, ACL_NO_MODE);
cifs_get_readable_path(tcon, full_path, &cfile);
@@ -1258,7 +1259,8 @@ int smb2_query_reparse_point(const unsigned int xid,
cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
cifs_get_readable_path(tcon, full_path, &cfile);
- oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_READ_ATTRIBUTES,
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
+ FILE_READ_ATTRIBUTES | FILE_READ_EA | SYNCHRONIZE,
FILE_OPEN, OPEN_REPARSE_POINT, ACL_NO_MODE);
rc = smb2_compound_op(xid, tcon, cifs_sb,
full_path, &oparms, &in_iov,
