mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-27 13:05:03 +08:00
2365c4eaf0
SMB3 servers can respond with MaxTransactSize of more than 4M that can cause a memory allocation error returned from kmalloc in a lock codepath. Also the client doesn't support multicredit requests now and allows buffer sizes of 65536 bytes only. Set MaxTransactSize to this maximum supported value. Cc: stable@vger.kernel.org # 3.7+ Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
|
|
* fs/cifs/smb2glob.h
|
|
*
|
|
* Definitions for various global variables and structures
|
|
*
|
|
* Copyright (C) International Business Machines Corp., 2002, 2011
|
|
* Etersoft, 2012
|
|
* Author(s): Steve French (sfrench@us.ibm.com)
|
|
* Jeremy Allison (jra@samba.org)
|
|
* Pavel Shilovsky (pshilovsky@samba.org) 2012
|
|
*
|
|
* This library is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published
|
|
* by the Free Software Foundation; either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
|
* the GNU Lesser General Public License for more details.
|
|
*
|
|
*/
|
|
#ifndef _SMB2_GLOB_H
|
|
#define _SMB2_GLOB_H
|
|
|
|
#define SMB2_MAGIC_NUMBER 0xFE534D42
|
|
|
|
/*
|
|
*****************************************************************
|
|
* Constants go here
|
|
*****************************************************************
|
|
*/
|
|
|
|
/*
|
|
* Identifiers for functions that use the open, operation, close pattern
|
|
* in smb2inode.c:smb2_open_op_close()
|
|
*/
|
|
#define SMB2_OP_SET_DELETE 1
|
|
#define SMB2_OP_SET_INFO 2
|
|
#define SMB2_OP_QUERY_INFO 3
|
|
#define SMB2_OP_QUERY_DIR 4
|
|
#define SMB2_OP_MKDIR 5
|
|
#define SMB2_OP_RENAME 6
|
|
#define SMB2_OP_DELETE 7
|
|
#define SMB2_OP_HARDLINK 8
|
|
#define SMB2_OP_SET_EOF 9
|
|
|
|
/* Used when constructing chained read requests. */
|
|
#define CHAINED_REQUEST 1
|
|
#define START_OF_CHAIN 2
|
|
#define END_OF_CHAIN 4
|
|
#define RELATED_REQUEST 8
|
|
|
|
#define SMB2_SIGNATURE_SIZE (16)
|
|
#define SMB2_NTLMV2_SESSKEY_SIZE (16)
|
|
#define SMB2_HMACSHA256_SIZE (32)
|
|
#define SMB2_CMACAES_SIZE (16)
|
|
#define SMB3_SIGNKEY_SIZE (16)
|
|
|
|
/* Maximum buffer size value we can send with 1 credit */
|
|
#define SMB2_MAX_BUFFER_SIZE 65536
|
|
|
|
#endif /* _SMB2_GLOB_H */
|