fs/cifs/smb2glob.h

   1 /*
   2  *   fs/cifs/smb2glob.h
   3  *
   4  *   Definitions for various global variables and structures
   5  *
   6  *   Copyright (C) International Business Machines  Corp., 2002, 2011
   7  *                 Etersoft, 2012
   8  *   Author(s): Steve French (sfrench@us.ibm.com)
   9  *              Jeremy Allison (jra@samba.org)
  10  *              Pavel Shilovsky (pshilovsky@samba.org) 2012
  11  *
  12  *   This library is free software; you can redistribute it and/or modify
  13  *   it under the terms of the GNU Lesser General Public License as published
  14  *   by the Free Software Foundation; either version 2.1 of the License, or
  15  *   (at your option) any later version.
  16  *
  17  *   This library is distributed in the hope that it will be useful,
  18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  20  *   the GNU Lesser General Public License for more details.
  21  *
  22  */
  23 #ifndef _SMB2_GLOB_H
  24 #define _SMB2_GLOB_H
  25
  26 #define SMB2_MAGIC_NUMBER 0xFE534D42
  27
  28 /*
  29  *****************************************************************
  30  * Constants go here
  31  *****************************************************************
  32  */
  33
  34 /*
  35  * Identifiers for functions that use the open, operation, close pattern
  36  * in smb2inode.c:smb2_open_op_close()
  37  */
  38 #define SMB2_OP_SET_DELETE 1
  39 #define SMB2_OP_SET_INFO 2
  40 #define SMB2_OP_QUERY_INFO 3
  41 #define SMB2_OP_QUERY_DIR 4
  42 #define SMB2_OP_MKDIR 5
  43 #define SMB2_OP_RENAME 6
  44 #define SMB2_OP_DELETE 7
  45 #define SMB2_OP_HARDLINK 8
  46 #define SMB2_OP_SET_EOF 9
  47 #define SMB2_OP_RMDIR 10
  48
  49 /* Used when constructing chained read requests. */
  50 #define CHAINED_REQUEST 1
  51 #define START_OF_CHAIN 2
  52 #define END_OF_CHAIN 4
  53 #define RELATED_REQUEST 8
  54
  55 #define SMB2_SIGNATURE_SIZE (16)
  56 #define SMB2_NTLMV2_SESSKEY_SIZE (16)
  57 #define SMB2_HMACSHA256_SIZE (32)
  58 #define SMB2_CMACAES_SIZE (16)
  59 #define SMB3_SIGNKEY_SIZE (16)
  60
  61 /* Maximum buffer size value we can send with 1 credit */
  62 #define SMB2_MAX_BUFFER_SIZE 65536
  63
  64 static inline struct smb2_sync_hdr *get_sync_hdr(void *buf)
  65 {
  66         return &(((struct smb2_hdr *)buf)->sync_hdr);
  67 }
  68
  69 #endif  /* _SMB2_GLOB_H */