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smb: client: fix FSCTL_GET_REPARSE_POINT against NetApp

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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@lrz.de>
Acked-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Paulo Alcantara 2024-08-01 18:12:39 -03:00 committed by Steve French
parent 69ca1f5755
commit ddecea00f8
1 changed files with 4 additions and 2 deletions
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6
fs/smb/client/smb2inode.c
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@ -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,