[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/fs/cifs/cifspdu.h b/ap/os/linux/linux-3.4.x/fs/cifs/cifspdu.h
new file mode 100644
index 0000000..3fb03e2
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/cifs/cifspdu.h
@@ -0,0 +1,2669 @@
+/*
+ *   fs/cifs/cifspdu.h
+ *
+ *   Copyright (c) International Business Machines  Corp., 2002,2009
+ *   Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ *   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.
+ *
+ *   You should have received a copy of the GNU Lesser General Public License
+ *   along with this library; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _CIFSPDU_H
+#define _CIFSPDU_H
+
+#include <net/sock.h>
+#include <asm/unaligned.h>
+#include "smbfsctl.h"
+
+#ifdef CONFIG_CIFS_WEAK_PW_HASH
+#define LANMAN_PROT 0
+#define LANMAN2_PROT 1
+#define CIFS_PROT   2
+#else
+#define CIFS_PROT   0
+#endif
+#define POSIX_PROT  (CIFS_PROT+1)
+#define BAD_PROT 0xFFFF
+
+/* SMB command codes:
+ * Note some commands have minimal (wct=0,bcc=0), or uninteresting, responses
+ * (ie which include no useful data other than the SMB error code itself).
+ * This can allow us to avoid response buffer allocations and copy in some cases
+ */
+#define SMB_COM_CREATE_DIRECTORY      0x00 /* trivial response */
+#define SMB_COM_DELETE_DIRECTORY      0x01 /* trivial response */
+#define SMB_COM_CLOSE                 0x04 /* triv req/rsp, timestamp ignored */
+#define SMB_COM_FLUSH                 0x05 /* triv req/rsp */
+#define SMB_COM_DELETE                0x06 /* trivial response */
+#define SMB_COM_RENAME                0x07 /* trivial response */
+#define SMB_COM_QUERY_INFORMATION     0x08 /* aka getattr */
+#define SMB_COM_SETATTR               0x09 /* trivial response */
+#define SMB_COM_LOCKING_ANDX          0x24 /* trivial response */
+#define SMB_COM_COPY                  0x29 /* trivial rsp, fail filename ignrd*/
+#define SMB_COM_ECHO                  0x2B /* echo request */
+#define SMB_COM_OPEN_ANDX             0x2D /* Legacy open for old servers */
+#define SMB_COM_READ_ANDX             0x2E
+#define SMB_COM_WRITE_ANDX            0x2F
+#define SMB_COM_TRANSACTION2          0x32
+#define SMB_COM_TRANSACTION2_SECONDARY 0x33
+#define SMB_COM_FIND_CLOSE2           0x34 /* trivial response */
+#define SMB_COM_TREE_DISCONNECT       0x71 /* trivial response */
+#define SMB_COM_NEGOTIATE             0x72
+#define SMB_COM_SESSION_SETUP_ANDX    0x73
+#define SMB_COM_LOGOFF_ANDX           0x74 /* trivial response */
+#define SMB_COM_TREE_CONNECT_ANDX     0x75
+#define SMB_COM_NT_TRANSACT           0xA0
+#define SMB_COM_NT_TRANSACT_SECONDARY 0xA1
+#define SMB_COM_NT_CREATE_ANDX        0xA2
+#define SMB_COM_NT_CANCEL             0xA4 /* no response */
+#define SMB_COM_NT_RENAME             0xA5 /* trivial response */
+
+/* Transact2 subcommand codes */
+#define TRANS2_OPEN                   0x00
+#define TRANS2_FIND_FIRST             0x01
+#define TRANS2_FIND_NEXT              0x02
+#define TRANS2_QUERY_FS_INFORMATION   0x03
+#define TRANS2_SET_FS_INFORMATION     0x04
+#define TRANS2_QUERY_PATH_INFORMATION 0x05
+#define TRANS2_SET_PATH_INFORMATION   0x06
+#define TRANS2_QUERY_FILE_INFORMATION 0x07
+#define TRANS2_SET_FILE_INFORMATION   0x08
+#define TRANS2_GET_DFS_REFERRAL       0x10
+#define TRANS2_REPORT_DFS_INCOSISTENCY 0x11
+
+/* SMB Transact (Named Pipe) subcommand codes */
+#define TRANS_SET_NMPIPE_STATE      0x0001
+#define TRANS_RAW_READ_NMPIPE       0x0011
+#define TRANS_QUERY_NMPIPE_STATE    0x0021
+#define TRANS_QUERY_NMPIPE_INFO     0x0022
+#define TRANS_PEEK_NMPIPE           0x0023
+#define TRANS_TRANSACT_NMPIPE       0x0026
+#define TRANS_RAW_WRITE_NMPIPE      0x0031
+#define TRANS_READ_NMPIPE           0x0036
+#define TRANS_WRITE_NMPIPE          0x0037
+#define TRANS_WAIT_NMPIPE           0x0053
+#define TRANS_CALL_NMPIPE           0x0054
+
+/* NT Transact subcommand codes */
+#define NT_TRANSACT_CREATE            0x01
+#define NT_TRANSACT_IOCTL             0x02
+#define NT_TRANSACT_SET_SECURITY_DESC 0x03
+#define NT_TRANSACT_NOTIFY_CHANGE     0x04
+#define NT_TRANSACT_RENAME            0x05
+#define NT_TRANSACT_QUERY_SECURITY_DESC 0x06
+#define NT_TRANSACT_GET_USER_QUOTA    0x07
+#define NT_TRANSACT_SET_USER_QUOTA    0x08
+
+#define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
+/* future chained NTCreateXReadX bigger, but for time being NTCreateX biggest */
+/* among the requests (NTCreateX response is bigger with wct of 34) */
+#define MAX_CIFS_HDR_SIZE 0x58 /* 4 len + 32 hdr + (2*24 wct) + 2 bct + 2 pad */
+#define CIFS_SMALL_PATH 120 /* allows for (448-88)/3 */
+
+/* internal cifs vfs structures */
+/*****************************************************************
+ * All constants go here
+ *****************************************************************
+ */
+
+/*
+ * Starting value for maximum SMB size negotiation
+ */
+#define CIFS_MAX_MSGSIZE (4*4096)
+
+/*
+ * Size of encrypted user password in bytes
+ */
+#define CIFS_ENCPWD_SIZE (16)
+
+/*
+ * Size of the crypto key returned on the negotiate SMB in bytes
+ */
+#define CIFS_CRYPTO_KEY_SIZE (8)
+
+/*
+ * Size of the ntlm client response
+ */
+#define CIFS_AUTH_RESP_SIZE (24)
+
+/*
+ * Size of the session key (crypto key encrypted with the password
+ */
+#define CIFS_SESS_KEY_SIZE (16)
+
+#define CIFS_CLIENT_CHALLENGE_SIZE (8)
+#define CIFS_SERVER_CHALLENGE_SIZE (8)
+#define CIFS_HMAC_MD5_HASH_SIZE (16)
+#define CIFS_CPHTXT_SIZE (16)
+#define CIFS_NTHASH_SIZE (16)
+
+/*
+ * Maximum user name length
+ */
+#define CIFS_UNLEN (20)
+
+/*
+ * Flags on SMB open
+ */
+#define SMBOPEN_WRITE_THROUGH 0x4000
+#define SMBOPEN_DENY_ALL      0x0010
+#define SMBOPEN_DENY_WRITE    0x0020
+#define SMBOPEN_DENY_READ     0x0030
+#define SMBOPEN_DENY_NONE     0x0040
+#define SMBOPEN_READ          0x0000
+#define SMBOPEN_WRITE         0x0001
+#define SMBOPEN_READWRITE     0x0002
+#define SMBOPEN_EXECUTE       0x0003
+
+#define SMBOPEN_OCREATE       0x0010
+#define SMBOPEN_OTRUNC        0x0002
+#define SMBOPEN_OAPPEND       0x0001
+
+/*
+ * SMB flag definitions
+ */
+#define SMBFLG_EXTD_LOCK 0x01	/* server supports lock-read write-unlock smb */
+#define SMBFLG_RCV_POSTED 0x02	/* obsolete */
+#define SMBFLG_RSVD 0x04
+#define SMBFLG_CASELESS 0x08	/* all pathnames treated as caseless (off
+				implies case sensitive file handling request) */
+#define SMBFLG_CANONICAL_PATH_FORMAT 0x10	/* obsolete */
+#define SMBFLG_OLD_OPLOCK 0x20	/* obsolete */
+#define SMBFLG_OLD_OPLOCK_NOTIFY 0x40	/* obsolete */
+#define SMBFLG_RESPONSE 0x80	/* this PDU is a response from server */
+
+/*
+ * SMB flag2 definitions
+ */
+#define SMBFLG2_KNOWS_LONG_NAMES cpu_to_le16(1)	/* can send long (non-8.3)
+						   path names in response */
+#define SMBFLG2_KNOWS_EAS cpu_to_le16(2)
+#define SMBFLG2_SECURITY_SIGNATURE cpu_to_le16(4)
+#define SMBFLG2_COMPRESSED (8)
+#define SMBFLG2_SECURITY_SIGNATURE_REQUIRED (0x10)
+#define SMBFLG2_IS_LONG_NAME cpu_to_le16(0x40)
+#define SMBFLG2_REPARSE_PATH (0x400)
+#define SMBFLG2_EXT_SEC cpu_to_le16(0x800)
+#define SMBFLG2_DFS cpu_to_le16(0x1000)
+#define SMBFLG2_PAGING_IO cpu_to_le16(0x2000)
+#define SMBFLG2_ERR_STATUS cpu_to_le16(0x4000)
+#define SMBFLG2_UNICODE cpu_to_le16(0x8000)
+
+/*
+ * These are the file access permission bits defined in CIFS for the
+ * NTCreateAndX as well as the level 0x107
+ * TRANS2_QUERY_PATH_INFORMATION API.  The level 0x107, SMB_QUERY_FILE_ALL_INFO
+ * responds with the AccessFlags.
+ * The AccessFlags specifies the access permissions a caller has to the
+ * file and can have any suitable combination of the following values:
+ */
+
+#define FILE_READ_DATA        0x00000001  /* Data can be read from the file   */
+#define FILE_WRITE_DATA       0x00000002  /* Data can be written to the file  */
+#define FILE_APPEND_DATA      0x00000004  /* Data can be appended to the file */
+#define FILE_READ_EA          0x00000008  /* Extended attributes associated   */
+					  /* with the file can be read        */
+#define FILE_WRITE_EA         0x00000010  /* Extended attributes associated   */
+					  /* with the file can be written     */
+#define FILE_EXECUTE          0x00000020  /*Data can be read into memory from */
+					  /* the file using system paging I/O */
+#define FILE_DELETE_CHILD     0x00000040
+#define FILE_READ_ATTRIBUTES  0x00000080  /* Attributes associated with the   */
+					  /* file can be read                 */
+#define FILE_WRITE_ATTRIBUTES 0x00000100  /* Attributes associated with the   */
+					  /* file can be written              */
+#define DELETE                0x00010000  /* The file can be deleted          */
+#define READ_CONTROL          0x00020000  /* The access control list and      */
+					  /* ownership associated with the    */
+					  /* file can be read                 */
+#define WRITE_DAC             0x00040000  /* The access control list and      */
+					  /* ownership associated with the    */
+					  /* file can be written.             */
+#define WRITE_OWNER           0x00080000  /* Ownership information associated */
+					  /* with the file can be written     */
+#define SYNCHRONIZE           0x00100000  /* The file handle can waited on to */
+					  /* synchronize with the completion  */
+					  /* of an input/output request       */
+#define GENERIC_ALL           0x10000000
+#define GENERIC_EXECUTE       0x20000000
+#define GENERIC_WRITE         0x40000000
+#define GENERIC_READ          0x80000000
+					 /* In summary - Relevant file       */
+					 /* access flags from CIFS are       */
+					 /* file_read_data, file_write_data  */
+					 /* file_execute, file_read_attributes*/
+					 /* write_dac, and delete.           */
+
+#define FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_READ_ATTRIBUTES)
+#define FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
+				| FILE_WRITE_EA | FILE_WRITE_ATTRIBUTES)
+#define FILE_EXEC_RIGHTS (FILE_EXECUTE)
+
+#define SET_FILE_READ_RIGHTS (FILE_READ_DATA | FILE_READ_EA | FILE_WRITE_EA \
+				| FILE_READ_ATTRIBUTES \
+				| FILE_WRITE_ATTRIBUTES \
+				| DELETE | READ_CONTROL | WRITE_DAC \
+				| WRITE_OWNER | SYNCHRONIZE)
+#define SET_FILE_WRITE_RIGHTS (FILE_WRITE_DATA | FILE_APPEND_DATA \
+				| FILE_READ_EA | FILE_WRITE_EA \
+				| FILE_DELETE_CHILD | FILE_READ_ATTRIBUTES \
+				| FILE_WRITE_ATTRIBUTES \
+				| DELETE | READ_CONTROL | WRITE_DAC \
+				| WRITE_OWNER | SYNCHRONIZE)
+#define SET_FILE_EXEC_RIGHTS (FILE_READ_EA | FILE_WRITE_EA | FILE_EXECUTE \
+				| FILE_READ_ATTRIBUTES \
+				| FILE_WRITE_ATTRIBUTES \
+				| DELETE | READ_CONTROL | WRITE_DAC \
+				| WRITE_OWNER | SYNCHRONIZE)
+
+#define SET_MINIMUM_RIGHTS (FILE_READ_EA | FILE_READ_ATTRIBUTES \
+				| READ_CONTROL | SYNCHRONIZE)
+
+
+/*
+ * Invalid readdir handle
+ */
+#define CIFS_NO_HANDLE        0xFFFF
+
+#define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
+#define NO_CHANGE_32          0xFFFFFFFFUL
+
+/* IPC$ in ASCII */
+#define CIFS_IPC_RESOURCE "\x49\x50\x43\x24"
+
+/* IPC$ in Unicode */
+#define CIFS_IPC_UNICODE_RESOURCE "\x00\x49\x00\x50\x00\x43\x00\x24\x00\x00"
+
+/* Unicode Null terminate 2 bytes of 0 */
+#define UNICODE_NULL "\x00\x00"
+#define ASCII_NULL 0x00
+
+/*
+ * Server type values (returned on EnumServer API
+ */
+#define CIFS_SV_TYPE_DC     0x00000008
+#define CIFS_SV_TYPE_BACKDC 0x00000010
+
+/*
+ * Alias type flags (From EnumAlias API call
+ */
+#define CIFS_ALIAS_TYPE_FILE 0x0001
+#define CIFS_SHARE_TYPE_FILE 0x0000
+
+/*
+ * File Attribute flags
+ */
+#define ATTR_READONLY  0x0001
+#define ATTR_HIDDEN    0x0002
+#define ATTR_SYSTEM    0x0004
+#define ATTR_VOLUME    0x0008
+#define ATTR_DIRECTORY 0x0010
+#define ATTR_ARCHIVE   0x0020
+#define ATTR_DEVICE    0x0040
+#define ATTR_NORMAL    0x0080
+#define ATTR_TEMPORARY 0x0100
+#define ATTR_SPARSE    0x0200
+#define ATTR_REPARSE   0x0400
+#define ATTR_COMPRESSED 0x0800
+#define ATTR_OFFLINE    0x1000	/* ie file not immediately available -
+					on offline storage */
+#define ATTR_NOT_CONTENT_INDEXED 0x2000
+#define ATTR_ENCRYPTED  0x4000
+#define ATTR_POSIX_SEMANTICS 0x01000000
+#define ATTR_BACKUP_SEMANTICS 0x02000000
+#define ATTR_DELETE_ON_CLOSE 0x04000000
+#define ATTR_SEQUENTIAL_SCAN 0x08000000
+#define ATTR_RANDOM_ACCESS   0x10000000
+#define ATTR_NO_BUFFERING    0x20000000
+#define ATTR_WRITE_THROUGH   0x80000000
+
+/* ShareAccess flags */
+#define FILE_NO_SHARE     0x00000000
+#define FILE_SHARE_READ   0x00000001
+#define FILE_SHARE_WRITE  0x00000002
+#define FILE_SHARE_DELETE 0x00000004
+#define FILE_SHARE_ALL    0x00000007
+
+/* CreateDisposition flags, similar to CreateAction as well */
+#define FILE_SUPERSEDE    0x00000000
+#define FILE_OPEN         0x00000001
+#define FILE_CREATE       0x00000002
+#define FILE_OPEN_IF      0x00000003
+#define FILE_OVERWRITE    0x00000004
+#define FILE_OVERWRITE_IF 0x00000005
+
+/* CreateOptions */
+#define CREATE_NOT_FILE		0x00000001	/* if set must not be file */
+#define CREATE_WRITE_THROUGH	0x00000002
+#define CREATE_SEQUENTIAL       0x00000004
+#define CREATE_NO_BUFFER        0x00000008      /* should not buffer on srv */
+#define CREATE_SYNC_ALERT       0x00000010	/* MBZ */
+#define CREATE_ASYNC_ALERT      0x00000020	/* MBZ */
+#define CREATE_NOT_DIR		0x00000040    /* if set must not be directory */
+#define CREATE_TREE_CONNECTION  0x00000080	/* should be zero */
+#define CREATE_COMPLETE_IF_OPLK 0x00000100	/* should be zero */
+#define CREATE_NO_EA_KNOWLEDGE  0x00000200
+#define CREATE_EIGHT_DOT_THREE  0x00000400	/* doc says this is obsolete
+						 "open for recovery" flag should
+						 be zero in any case */
+#define CREATE_OPEN_FOR_RECOVERY 0x00000400
+#define CREATE_RANDOM_ACCESS	0x00000800
+#define CREATE_DELETE_ON_CLOSE	0x00001000
+#define CREATE_OPEN_BY_ID       0x00002000
+#define CREATE_OPEN_BACKUP_INTENT 0x00004000
+#define CREATE_NO_COMPRESSION   0x00008000
+#define CREATE_RESERVE_OPFILTER 0x00100000	/* should be zero */
+#define OPEN_REPARSE_POINT	0x00200000
+#define OPEN_NO_RECALL          0x00400000
+#define OPEN_FREE_SPACE_QUERY   0x00800000	/* should be zero */
+#define CREATE_OPTIONS_MASK     0x007FFFFF
+#define CREATE_OPTION_READONLY	0x10000000
+#define CREATE_OPTION_SPECIAL   0x20000000   /* system. NB not sent over wire */
+
+/* ImpersonationLevel flags */
+#define SECURITY_ANONYMOUS      0
+#define SECURITY_IDENTIFICATION 1
+#define SECURITY_IMPERSONATION  2
+#define SECURITY_DELEGATION     3
+
+/* SecurityFlags */
+#define SECURITY_CONTEXT_TRACKING 0x01
+#define SECURITY_EFFECTIVE_ONLY   0x02
+
+/*
+ * Default PID value, used in all SMBs where the PID is not important
+ */
+#define CIFS_DFT_PID  0x1234
+
+/*
+ * We use the same routine for Copy and Move SMBs.  This flag is used to
+ * distinguish
+ */
+#define CIFS_COPY_OP 1
+#define CIFS_RENAME_OP 2
+
+#define GETU16(var)  (*((__u16 *)var))	/* BB check for endian issues */
+#define GETU32(var)  (*((__u32 *)var))	/* BB check for endian issues */
+
+struct smb_hdr {
+	__be32 smb_buf_length;	/* BB length is only two (rarely three) bytes,
+		with one or two byte "type" preceding it that will be
+		zero - we could mask the type byte off */
+	__u8 Protocol[4];
+	__u8 Command;
+	union {
+		struct {
+			__u8 ErrorClass;
+			__u8 Reserved;
+			__le16 Error;
+		} __attribute__((packed)) DosError;
+		__le32 CifsError;
+	} __attribute__((packed)) Status;
+	__u8 Flags;
+	__le16 Flags2;		/* note: le */
+	__le16 PidHigh;
+	union {
+		struct {
+			__le32 SequenceNumber;  /* le */
+			__u32 Reserved; /* zero */
+		} __attribute__((packed)) Sequence;
+		__u8 SecuritySignature[8];	/* le */
+	} __attribute__((packed)) Signature;
+	__u8 pad[2];
+	__u16 Tid;
+	__le16 Pid;
+	__u16 Uid;
+	__u16 Mid;
+	__u8 WordCount;
+} __attribute__((packed));
+
+/* given a pointer to an smb_hdr, retrieve a void pointer to the ByteCount */
+static inline void *
+BCC(struct smb_hdr *smb)
+{
+	return (void *)smb + sizeof(*smb) + 2 * smb->WordCount;
+}
+
+/* given a pointer to an smb_hdr retrieve the pointer to the byte area */
+#define pByteArea(smb_var) (BCC(smb_var) + 2)
+
+/* get the unconverted ByteCount for a SMB packet and return it */
+static inline __u16
+get_bcc(struct smb_hdr *hdr)
+{
+	__le16 *bc_ptr = (__le16 *)BCC(hdr);
+
+	return get_unaligned_le16(bc_ptr);
+}
+
+/* set the ByteCount for a SMB packet in little-endian */
+static inline void
+put_bcc(__u16 count, struct smb_hdr *hdr)
+{
+	__le16 *bc_ptr = (__le16 *)BCC(hdr);
+
+	put_unaligned_le16(count, bc_ptr);
+}
+
+/*
+ * Computer Name Length (since Netbios name was length 16 with last byte 0x20)
+ * No longer as important, now that TCP names are more commonly used to
+ * resolve hosts.
+ */
+#define CNLEN 15
+
+/*
+ * Share Name Length (SNLEN)
+ * Note:  This length was limited by the SMB used to get
+ *        the Share info.   NetShareEnum only returned 13
+ *        chars, including the null termination.
+ * This was removed because it no longer is limiting.
+ */
+
+/*
+ * Comment Length
+ */
+#define MAXCOMMENTLEN 40
+
+/*
+ * The OS/2 maximum path name
+ */
+#define MAX_PATHCONF 256
+
+/*
+ *  SMB frame definitions  (following must be packed structs)
+ *  See the SNIA CIFS Specification for details.
+ *
+ *  The Naming convention is the lower case version of the
+ *  smb command code name for the struct and this is typedef to the
+ *  uppercase version of the same name with the prefix SMB_ removed
+ *  for brevity.  Although typedefs are not commonly used for
+ *  structure definitions in the Linux kernel, their use in the
+ *  CIFS standards document, which this code is based on, may
+ *  make this one of the cases where typedefs for structures make
+ *  sense to improve readability for readers of the standards doc.
+ *  Typedefs can always be removed later if they are too distracting
+ *  and they are only used for the CIFSs PDUs themselves, not
+ *  internal cifs vfs structures
+ *
+ */
+
+typedef struct negotiate_req {
+	struct smb_hdr hdr;	/* wct = 0 */
+	__le16 ByteCount;
+	unsigned char DialectsArray[1];
+} __attribute__((packed)) NEGOTIATE_REQ;
+
+/* Dialect index is 13 for LANMAN */
+
+#define MIN_TZ_ADJ (15 * 60) /* minimum grid for timezones in seconds */
+
+typedef struct lanman_neg_rsp {
+	struct smb_hdr hdr;	/* wct = 13 */
+	__le16 DialectIndex;
+	__le16 SecurityMode;
+	__le16 MaxBufSize;
+	__le16 MaxMpxCount;
+	__le16 MaxNumberVcs;
+	__le16 RawMode;
+	__le32 SessionKey;
+	struct {
+		__le16 Time;
+		__le16 Date;
+	} __attribute__((packed)) SrvTime;
+	__le16 ServerTimeZone;
+	__le16 EncryptionKeyLength;
+	__le16 Reserved;
+	__u16  ByteCount;
+	unsigned char EncryptionKey[1];
+} __attribute__((packed)) LANMAN_NEG_RSP;
+
+#define READ_RAW_ENABLE 1
+#define WRITE_RAW_ENABLE 2
+#define RAW_ENABLE (READ_RAW_ENABLE | WRITE_RAW_ENABLE)
+
+typedef struct negotiate_rsp {
+	struct smb_hdr hdr;	/* wct = 17 */
+	__le16 DialectIndex; /* 0xFFFF = no dialect acceptable */
+	__u8 SecurityMode;
+	__le16 MaxMpxCount;
+	__le16 MaxNumberVcs;
+	__le32 MaxBufferSize;
+	__le32 MaxRawSize;
+	__le32 SessionKey;
+	__le32 Capabilities;	/* see below */
+	__le32 SystemTimeLow;
+	__le32 SystemTimeHigh;
+	__le16 ServerTimeZone;
+	__u8 EncryptionKeyLength;
+	__u16 ByteCount;
+	union {
+		unsigned char EncryptionKey[1];	/* cap extended security off */
+		/* followed by Domain name - if extended security is off */
+		/* followed by 16 bytes of server GUID */
+		/* then security blob if cap_extended_security negotiated */
+		struct {
+			unsigned char GUID[16];
+			unsigned char SecurityBlob[1];
+		} __attribute__((packed)) extended_response;
+	} __attribute__((packed)) u;
+} __attribute__((packed)) NEGOTIATE_RSP;
+
+/* SecurityMode bits */
+#define SECMODE_USER          0x01	/* off indicates share level security */
+#define SECMODE_PW_ENCRYPT    0x02
+#define SECMODE_SIGN_ENABLED  0x04	/* SMB security signatures enabled */
+#define SECMODE_SIGN_REQUIRED 0x08	/* SMB security signatures required */
+
+/* Negotiate response Capabilities */
+#define CAP_RAW_MODE           0x00000001
+#define CAP_MPX_MODE           0x00000002
+#define CAP_UNICODE            0x00000004
+#define CAP_LARGE_FILES        0x00000008
+#define CAP_NT_SMBS            0x00000010	/* implies CAP_NT_FIND */
+#define CAP_RPC_REMOTE_APIS    0x00000020
+#define CAP_STATUS32           0x00000040
+#define CAP_LEVEL_II_OPLOCKS   0x00000080
+#define CAP_LOCK_AND_READ      0x00000100
+#define CAP_NT_FIND            0x00000200
+#define CAP_DFS                0x00001000
+#define CAP_INFOLEVEL_PASSTHRU 0x00002000
+#define CAP_LARGE_READ_X       0x00004000
+#define CAP_LARGE_WRITE_X      0x00008000
+#define CAP_LWIO               0x00010000 /* support fctl_srv_req_resume_key */
+#define CAP_UNIX               0x00800000
+#define CAP_COMPRESSED_DATA    0x02000000
+#define CAP_DYNAMIC_REAUTH     0x20000000
+#define CAP_PERSISTENT_HANDLES 0x40000000
+#define CAP_EXTENDED_SECURITY  0x80000000
+
+typedef union smb_com_session_setup_andx {
+	struct {		/* request format */
+		struct smb_hdr hdr;	/* wct = 12 */
+		__u8 AndXCommand;
+		__u8 AndXReserved;
+		__le16 AndXOffset;
+		__le16 MaxBufferSize;
+		__le16 MaxMpxCount;
+		__le16 VcNumber;
+		__u32 SessionKey;
+		__le16 SecurityBlobLength;
+		__u32 Reserved;
+		__le32 Capabilities;	/* see below */
+		__le16 ByteCount;
+		unsigned char SecurityBlob[1];	/* followed by */
+		/* STRING NativeOS */
+		/* STRING NativeLanMan */
+	} __attribute__((packed)) req;	/* NTLM request format (with
+					extended security */
+
+	struct {		/* request format */
+		struct smb_hdr hdr;	/* wct = 13 */
+		__u8 AndXCommand;
+		__u8 AndXReserved;
+		__le16 AndXOffset;
+		__le16 MaxBufferSize;
+		__le16 MaxMpxCount;
+		__le16 VcNumber;
+		__u32 SessionKey;
+		__le16 CaseInsensitivePasswordLength; /* ASCII password len */
+		__le16 CaseSensitivePasswordLength; /* Unicode password length*/
+		__u32 Reserved;	/* see below */
+		__le32 Capabilities;
+		__le16 ByteCount;
+		unsigned char CaseInsensitivePassword[1];     /* followed by: */
+		/* unsigned char * CaseSensitivePassword; */
+		/* STRING AccountName */
+		/* STRING PrimaryDomain */
+		/* STRING NativeOS */
+		/* STRING NativeLanMan */
+	} __attribute__((packed)) req_no_secext; /* NTLM request format (without
+							extended security */
+
+	struct {		/* default (NTLM) response format */
+		struct smb_hdr hdr;	/* wct = 4 */
+		__u8 AndXCommand;
+		__u8 AndXReserved;
+		__le16 AndXOffset;
+		__le16 Action;	/* see below */
+		__le16 SecurityBlobLength;
+		__u16 ByteCount;
+		unsigned char SecurityBlob[1];	/* followed by */
+/*      unsigned char  * NativeOS;      */
+/*	unsigned char  * NativeLanMan;  */
+/*      unsigned char  * PrimaryDomain; */
+	} __attribute__((packed)) resp;	/* NTLM response
+					   (with or without extended sec) */
+
+	struct {		/* request format */
+		struct smb_hdr hdr;	/* wct = 10 */
+		__u8 AndXCommand;
+		__u8 AndXReserved;
+		__le16 AndXOffset;
+		__le16 MaxBufferSize;
+		__le16 MaxMpxCount;
+		__le16 VcNumber;
+		__u32 SessionKey;
+		__le16 PasswordLength;
+		__u32 Reserved; /* encrypt key len and offset */
+		__le16 ByteCount;
+		unsigned char AccountPassword[1];	/* followed by */
+		/* STRING AccountName */
+		/* STRING PrimaryDomain */
+		/* STRING NativeOS */
+		/* STRING NativeLanMan */
+	} __attribute__((packed)) old_req; /* pre-NTLM (LANMAN2.1) req format */
+
+	struct {		/* default (NTLM) response format */
+		struct smb_hdr hdr;	/* wct = 3 */
+		__u8 AndXCommand;
+		__u8 AndXReserved;
+		__le16 AndXOffset;
+		__le16 Action;	/* see below */
+		__u16 ByteCount;
+		unsigned char NativeOS[1];	/* followed by */
+/*	unsigned char * NativeLanMan; */
+/*      unsigned char * PrimaryDomain; */
+	} __attribute__((packed)) old_resp; /* pre-NTLM (LANMAN2.1) response */
+} __attribute__((packed)) SESSION_SETUP_ANDX;
+
+/* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
+
+#define NTLMSSP_SERVER_TYPE	1
+#define NTLMSSP_DOMAIN_TYPE	2
+#define NTLMSSP_FQ_DOMAIN_TYPE	3
+#define NTLMSSP_DNS_DOMAIN_TYPE	4
+#define NTLMSSP_DNS_PARENT_TYPE	5
+
+struct ntlmssp2_name {
+	__le16 type;
+	__le16 length;
+/*	char   name[length]; */
+} __attribute__((packed));
+
+struct ntlmv2_resp {
+	char ntlmv2_hash[CIFS_ENCPWD_SIZE];
+	__le32 blob_signature;
+	__u32  reserved;
+	__le64  time;
+	__u64  client_chal; /* random */
+	__u32  reserved2;
+	/* array of name entries could follow ending in minimum 4 byte struct */
+} __attribute__((packed));
+
+
+#define CIFS_NETWORK_OPSYS "CIFS VFS Client for Linux"
+
+/* Capabilities bits (for NTLM SessSetup request) */
+#define CAP_UNICODE            0x00000004
+#define CAP_LARGE_FILES        0x00000008
+#define CAP_NT_SMBS            0x00000010
+#define CAP_STATUS32           0x00000040
+#define CAP_LEVEL_II_OPLOCKS   0x00000080
+#define CAP_NT_FIND            0x00000200	/* reserved should be zero
+				(because NT_SMBs implies the same thing?) */
+#define CAP_BULK_TRANSFER      0x20000000
+#define CAP_EXTENDED_SECURITY  0x80000000
+
+/* Action bits */
+#define GUEST_LOGIN 1
+
+typedef struct smb_com_tconx_req {
+	struct smb_hdr hdr;	/* wct = 4 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__le16 Flags;		/* see below */
+	__le16 PasswordLength;
+	__le16 ByteCount;
+	unsigned char Password[1];	/* followed by */
+/* STRING Path    *//* \\server\share name */
+	/* STRING Service */
+} __attribute__((packed)) TCONX_REQ;
+
+typedef struct smb_com_tconx_rsp {
+	struct smb_hdr hdr;	/* wct = 3 , not extended response */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__le16 OptionalSupport;	/* see below */
+	__u16 ByteCount;
+	unsigned char Service[1];	/* always ASCII, not Unicode */
+	/* STRING NativeFileSystem */
+} __attribute__((packed)) TCONX_RSP;
+
+typedef struct smb_com_tconx_rsp_ext {
+	struct smb_hdr hdr;	/* wct = 7, extended response */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__le16 OptionalSupport;	/* see below */
+	__le32 MaximalShareAccessRights;
+	__le32 GuestMaximalShareAccessRights;
+	__u16 ByteCount;
+	unsigned char Service[1];	/* always ASCII, not Unicode */
+	/* STRING NativeFileSystem */
+} __attribute__((packed)) TCONX_RSP_EXT;
+
+
+/* tree connect Flags */
+#define DISCONNECT_TID          0x0001
+#define TCON_EXTENDED_SIGNATURES 0x0004
+#define TCON_EXTENDED_SECINFO   0x0008
+
+/* OptionalSupport bits */
+#define SMB_SUPPORT_SEARCH_BITS 0x0001	/* "must have" directory search bits
+					 (exclusive searches supported) */
+#define SMB_SHARE_IS_IN_DFS     0x0002
+#define SMB_CSC_MASK               0x000C
+/* CSC flags defined as follows */
+#define SMB_CSC_CACHE_MANUAL_REINT 0x0000
+#define SMB_CSC_CACHE_AUTO_REINT   0x0004
+#define SMB_CSC_CACHE_VDO          0x0008
+#define SMB_CSC_NO_CACHING         0x000C
+#define SMB_UNIQUE_FILE_NAME    0x0010
+#define SMB_EXTENDED_SIGNATURES 0x0020
+
+/* services
+ *
+ * A:       ie disk
+ * LPT1:    ie printer
+ * IPC      ie named pipe
+ * COMM
+ * ?????    ie any type
+ *
+ */
+
+typedef struct smb_com_echo_req {
+	struct	smb_hdr hdr;
+	__le16	EchoCount;
+	__le16	ByteCount;
+	char	Data[1];
+} __attribute__((packed)) ECHO_REQ;
+
+typedef struct smb_com_echo_rsp {
+	struct	smb_hdr hdr;
+	__le16	SequenceNumber;
+	__le16	ByteCount;
+	char	Data[1];
+} __attribute__((packed)) ECHO_RSP;
+
+typedef struct smb_com_logoff_andx_req {
+	struct smb_hdr hdr;	/* wct = 2 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__u16 AndXOffset;
+	__u16 ByteCount;
+} __attribute__((packed)) LOGOFF_ANDX_REQ;
+
+typedef struct smb_com_logoff_andx_rsp {
+	struct smb_hdr hdr;	/* wct = 2 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__u16 AndXOffset;
+	__u16 ByteCount;
+} __attribute__((packed)) LOGOFF_ANDX_RSP;
+
+typedef union smb_com_tree_disconnect {	/* as an altetnative can use flag on
+					tree_connect PDU to effect disconnect */
+					/* tdis is probably simplest SMB PDU */
+	struct {
+		struct smb_hdr hdr;	/* wct = 0 */
+		__u16 ByteCount;	/* bcc = 0 */
+	} __attribute__((packed)) req;
+	struct {
+		struct smb_hdr hdr;	/* wct = 0 */
+		__u16 ByteCount;	/* bcc = 0 */
+	} __attribute__((packed)) resp;
+} __attribute__((packed)) TREE_DISCONNECT;
+
+typedef struct smb_com_close_req {
+	struct smb_hdr hdr;	/* wct = 3 */
+	__u16 FileID;
+	__u32 LastWriteTime;	/* should be zero or -1 */
+	__u16 ByteCount;	/* 0 */
+} __attribute__((packed)) CLOSE_REQ;
+
+typedef struct smb_com_close_rsp {
+	struct smb_hdr hdr;	/* wct = 0 */
+	__u16 ByteCount;	/* bct = 0 */
+} __attribute__((packed)) CLOSE_RSP;
+
+typedef struct smb_com_flush_req {
+	struct smb_hdr hdr;	/* wct = 1 */
+	__u16 FileID;
+	__u16 ByteCount;	/* 0 */
+} __attribute__((packed)) FLUSH_REQ;
+
+typedef struct smb_com_findclose_req {
+	struct smb_hdr hdr; /* wct = 1 */
+	__u16 FileID;
+	__u16 ByteCount;    /* 0 */
+} __attribute__((packed)) FINDCLOSE_REQ;
+
+/* OpenFlags */
+#define REQ_MORE_INFO      0x00000001  /* legacy (OPEN_AND_X) only */
+#define REQ_OPLOCK         0x00000002
+#define REQ_BATCHOPLOCK    0x00000004
+#define REQ_OPENDIRONLY    0x00000008
+#define REQ_EXTENDED_INFO  0x00000010
+
+/* File type */
+#define DISK_TYPE		0x0000
+#define BYTE_PIPE_TYPE		0x0001
+#define MESSAGE_PIPE_TYPE	0x0002
+#define PRINTER_TYPE		0x0003
+#define COMM_DEV_TYPE		0x0004
+#define UNKNOWN_TYPE		0xFFFF
+
+/* Device Type or File Status Flags */
+#define NO_EAS			0x0001
+#define NO_SUBSTREAMS		0x0002
+#define NO_REPARSETAG		0x0004
+/* following flags can apply if pipe */
+#define ICOUNT_MASK		0x00FF
+#define PIPE_READ_MODE		0x0100
+#define NAMED_PIPE_TYPE		0x0400
+#define PIPE_END_POINT		0x4000
+#define BLOCKING_NAMED_PIPE	0x8000
+
+typedef struct smb_com_open_req {	/* also handles create */
+	struct smb_hdr hdr;	/* wct = 24 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u8 Reserved;		/* Must Be Zero */
+	__le16 NameLength;
+	__le32 OpenFlags;
+	__u32  RootDirectoryFid;
+	__le32 DesiredAccess;
+	__le64 AllocationSize;
+	__le32 FileAttributes;
+	__le32 ShareAccess;
+	__le32 CreateDisposition;
+	__le32 CreateOptions;
+	__le32 ImpersonationLevel;
+	__u8 SecurityFlags;
+	__le16 ByteCount;
+	char fileName[1];
+} __attribute__((packed)) OPEN_REQ;
+
+/* open response: oplock levels */
+#define OPLOCK_NONE  	 0
+#define OPLOCK_EXCLUSIVE 1
+#define OPLOCK_BATCH	 2
+#define OPLOCK_READ	 3  /* level 2 oplock */
+
+/* open response for CreateAction shifted left */
+#define CIFS_CREATE_ACTION 0x20000 /* file created */
+
+typedef struct smb_com_open_rsp {
+	struct smb_hdr hdr;	/* wct = 34 BB */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u8 OplockLevel;
+	__u16 Fid;
+	__le32 CreateAction;
+	__le64 CreationTime;
+	__le64 LastAccessTime;
+	__le64 LastWriteTime;
+	__le64 ChangeTime;
+	__le32 FileAttributes;
+	__le64 AllocationSize;
+	__le64 EndOfFile;
+	__le16 FileType;
+	__le16 DeviceState;
+	__u8 DirectoryFlag;
+	__u16 ByteCount;	/* bct = 0 */
+} __attribute__((packed)) OPEN_RSP;
+
+typedef struct smb_com_open_rsp_ext {
+	struct smb_hdr hdr;     /* wct = 42 but meaningless due to MS bug? */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u8 OplockLevel;
+	__u16 Fid;
+	__le32 CreateAction;
+	__le64 CreationTime;
+	__le64 LastAccessTime;
+	__le64 LastWriteTime;
+	__le64 ChangeTime;
+	__le32 FileAttributes;
+	__le64 AllocationSize;
+	__le64 EndOfFile;
+	__le16 FileType;
+	__le16 DeviceState;
+	__u8 DirectoryFlag;
+	__u8 VolumeGUID[16];
+	__u64 FileId; /* note no endian conversion - is opaque UniqueID */
+	__le32 MaximalAccessRights;
+	__le32 GuestMaximalAccessRights;
+	__u16 ByteCount;        /* bct = 0 */
+} __attribute__((packed)) OPEN_RSP_EXT;
+
+
+/* format of legacy open request */
+typedef struct smb_com_openx_req {
+	struct smb_hdr	hdr;	/* wct = 15 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__le16 OpenFlags;
+	__le16 Mode;
+	__le16 Sattr; /* search attributes */
+	__le16 FileAttributes;  /* dos attrs */
+	__le32 CreateTime; /* os2 format */
+	__le16 OpenFunction;
+	__le32 EndOfFile;
+	__le32 Timeout;
+	__le32 Reserved;
+	__le16  ByteCount;  /* file name follows */
+	char   fileName[1];
+} __attribute__((packed)) OPENX_REQ;
+
+typedef struct smb_com_openx_rsp {
+	struct smb_hdr	hdr;	/* wct = 15 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u16  Fid;
+	__le16 FileAttributes;
+	__le32 LastWriteTime; /* os2 format */
+	__le32 EndOfFile;
+	__le16 Access;
+	__le16 FileType;
+	__le16 IPCState;
+	__le16 Action;
+	__u32  FileId;
+	__u16  Reserved;
+	__u16  ByteCount;
+} __attribute__((packed)) OPENX_RSP;
+
+/* For encoding of POSIX Open Request - see trans2 function 0x209 data struct */
+
+/* Legacy write request for older servers */
+typedef struct smb_com_writex_req {
+	struct smb_hdr hdr;     /* wct = 12 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u16 Fid;
+	__le32 OffsetLow;
+	__u32 Reserved; /* Timeout */
+	__le16 WriteMode; /* 1 = write through */
+	__le16 Remaining;
+	__le16 Reserved2;
+	__le16 DataLengthLow;
+	__le16 DataOffset;
+	__le16 ByteCount;
+	__u8 Pad;		/* BB check for whether padded to DWORD
+				   boundary and optimum performance here */
+	char Data[0];
+} __attribute__((packed)) WRITEX_REQ;
+
+typedef struct smb_com_write_req {
+	struct smb_hdr hdr;	/* wct = 14 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u16 Fid;
+	__le32 OffsetLow;
+	__u32 Reserved;
+	__le16 WriteMode;
+	__le16 Remaining;
+	__le16 DataLengthHigh;
+	__le16 DataLengthLow;
+	__le16 DataOffset;
+	__le32 OffsetHigh;
+	__le16 ByteCount;
+	__u8 Pad;		/* BB check for whether padded to DWORD
+				   boundary and optimum performance here */
+	char Data[0];
+} __attribute__((packed)) WRITE_REQ;
+
+typedef struct smb_com_write_rsp {
+	struct smb_hdr hdr;	/* wct = 6 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__le16 Count;
+	__le16 Remaining;
+	__le16 CountHigh;
+	__u16  Reserved;
+	__u16 ByteCount;
+} __attribute__((packed)) WRITE_RSP;
+
+/* legacy read request for older servers */
+typedef struct smb_com_readx_req {
+	struct smb_hdr hdr;	/* wct = 10 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u16 Fid;
+	__le32 OffsetLow;
+	__le16 MaxCount;
+	__le16 MinCount;	/* obsolete */
+	__le32 Reserved;
+	__le16 Remaining;
+	__le16 ByteCount;
+} __attribute__((packed)) READX_REQ;
+
+typedef struct smb_com_read_req {
+	struct smb_hdr hdr;	/* wct = 12 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u16 Fid;
+	__le32 OffsetLow;
+	__le16 MaxCount;
+	__le16 MinCount;		/* obsolete */
+	__le32 MaxCountHigh;
+	__le16 Remaining;
+	__le32 OffsetHigh;
+	__le16 ByteCount;
+} __attribute__((packed)) READ_REQ;
+
+typedef struct smb_com_read_rsp {
+	struct smb_hdr hdr;	/* wct = 12 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__le16 Remaining;
+	__le16 DataCompactionMode;
+	__le16 Reserved;
+	__le16 DataLength;
+	__le16 DataOffset;
+	__le16 DataLengthHigh;
+	__u64 Reserved2;
+	__u16 ByteCount;
+	/* read response data immediately follows */
+} __attribute__((packed)) READ_RSP;
+
+typedef struct locking_andx_range {
+	__le16 Pid;
+	__le16 Pad;
+	__le32 OffsetHigh;
+	__le32 OffsetLow;
+	__le32 LengthHigh;
+	__le32 LengthLow;
+} __attribute__((packed)) LOCKING_ANDX_RANGE;
+
+#define LOCKING_ANDX_SHARED_LOCK     0x01
+#define LOCKING_ANDX_OPLOCK_RELEASE  0x02
+#define LOCKING_ANDX_CHANGE_LOCKTYPE 0x04
+#define LOCKING_ANDX_CANCEL_LOCK     0x08
+#define LOCKING_ANDX_LARGE_FILES     0x10	/* always on for us */
+
+typedef struct smb_com_lock_req {
+	struct smb_hdr hdr;	/* wct = 8 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u16 Fid;
+	__u8 LockType;
+	__u8 OplockLevel;
+	__le32 Timeout;
+	__le16 NumberOfUnlocks;
+	__le16 NumberOfLocks;
+	__le16 ByteCount;
+	LOCKING_ANDX_RANGE Locks[1];
+} __attribute__((packed)) LOCK_REQ;
+
+/* lock type */
+#define CIFS_RDLCK	0
+#define CIFS_WRLCK	1
+#define CIFS_UNLCK      2
+typedef struct cifs_posix_lock {
+	__le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
+	__le16  lock_flags; /* 1 = Wait (only valid for setlock) */
+	__le32  pid;
+	__le64	start;
+	__le64	length;
+	/* BB what about additional owner info to identify network client */
+} __attribute__((packed)) CIFS_POSIX_LOCK;
+
+typedef struct smb_com_lock_rsp {
+	struct smb_hdr hdr;	/* wct = 2 */
+	__u8 AndXCommand;
+	__u8 AndXReserved;
+	__le16 AndXOffset;
+	__u16 ByteCount;
+} __attribute__((packed)) LOCK_RSP;
+
+typedef struct smb_com_rename_req {
+	struct smb_hdr hdr;	/* wct = 1 */
+	__le16 SearchAttributes;	/* target file attributes */
+	__le16 ByteCount;
+	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
+	unsigned char OldFileName[1];
+	/* followed by __u8 BufferFormat2 */
+	/* followed by NewFileName */
+} __attribute__((packed)) RENAME_REQ;
+
+	/* copy request flags */
+#define COPY_MUST_BE_FILE      0x0001
+#define COPY_MUST_BE_DIR       0x0002
+#define COPY_TARGET_MODE_ASCII 0x0004 /* if not set, binary */
+#define COPY_SOURCE_MODE_ASCII 0x0008 /* if not set, binary */
+#define COPY_VERIFY_WRITES     0x0010
+#define COPY_TREE              0x0020
+
+typedef struct smb_com_copy_req {
+	struct smb_hdr hdr;	/* wct = 3 */
+	__u16 Tid2;
+	__le16 OpenFunction;
+	__le16 Flags;
+	__le16 ByteCount;
+	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
+	unsigned char OldFileName[1];
+	/* followed by __u8 BufferFormat2 */
+	/* followed by NewFileName string */
+} __attribute__((packed)) COPY_REQ;
+
+typedef struct smb_com_copy_rsp {
+	struct smb_hdr hdr;     /* wct = 1 */
+	__le16 CopyCount;    /* number of files copied */
+	__u16 ByteCount;    /* may be zero */
+	__u8 BufferFormat;  /* 0x04 - only present if errored file follows */
+	unsigned char ErrorFileName[1]; /* only present if error in copy */
+} __attribute__((packed)) COPY_RSP;
+
+#define CREATE_HARD_LINK		0x103
+#define MOVEFILE_COPY_ALLOWED		0x0002
+#define MOVEFILE_REPLACE_EXISTING	0x0001
+
+typedef struct smb_com_nt_rename_req {	/* A5 - also used for create hardlink */
+	struct smb_hdr hdr;	/* wct = 4 */
+	__le16 SearchAttributes;	/* target file attributes */
+	__le16 Flags;		/* spec says Information Level */
+	__le32 ClusterCount;
+	__le16 ByteCount;
+	__u8 BufferFormat;	/* 4 = ASCII or Unicode */
+	unsigned char OldFileName[1];
+	/* followed by __u8 BufferFormat2 */
+	/* followed by NewFileName */
+} __attribute__((packed)) NT_RENAME_REQ;
+
+typedef struct smb_com_rename_rsp {
+	struct smb_hdr hdr;	/* wct = 0 */
+	__u16 ByteCount;	/* bct = 0 */
+} __attribute__((packed)) RENAME_RSP;
+
+typedef struct smb_com_delete_file_req {
+	struct smb_hdr hdr;	/* wct = 1 */
+	__le16 SearchAttributes;
+	__le16 ByteCount;
+	__u8 BufferFormat;	/* 4 = ASCII */
+	unsigned char fileName[1];
+} __attribute__((packed)) DELETE_FILE_REQ;
+
+typedef struct smb_com_delete_file_rsp {
+	struct smb_hdr hdr;	/* wct = 0 */
+	__u16 ByteCount;	/* bct = 0 */
+} __attribute__((packed)) DELETE_FILE_RSP;
+
+typedef struct smb_com_delete_directory_req {
+	struct smb_hdr hdr;	/* wct = 0 */
+	__le16 ByteCount;
+	__u8 BufferFormat;	/* 4 = ASCII */
+	unsigned char DirName[1];
+} __attribute__((packed)) DELETE_DIRECTORY_REQ;
+
+typedef struct smb_com_delete_directory_rsp {
+	struct smb_hdr hdr;	/* wct = 0 */
+	__u16 ByteCount;	/* bct = 0 */
+} __attribute__((packed)) DELETE_DIRECTORY_RSP;
+
+typedef struct smb_com_create_directory_req {
+	struct smb_hdr hdr;	/* wct = 0 */
+	__le16 ByteCount;
+	__u8 BufferFormat;	/* 4 = ASCII */
+	unsigned char DirName[1];
+} __attribute__((packed)) CREATE_DIRECTORY_REQ;
+
+typedef struct smb_com_create_directory_rsp {
+	struct smb_hdr hdr;	/* wct = 0 */
+	__u16 ByteCount;	/* bct = 0 */
+} __attribute__((packed)) CREATE_DIRECTORY_RSP;
+
+typedef struct smb_com_query_information_req {
+	struct smb_hdr hdr;     /* wct = 0 */
+	__le16 ByteCount;	/* 1 + namelen + 1 */
+	__u8 BufferFormat;      /* 4 = ASCII */
+	unsigned char FileName[1];
+} __attribute__((packed)) QUERY_INFORMATION_REQ;
+
+typedef struct smb_com_query_information_rsp {
+	struct smb_hdr hdr;     /* wct = 10 */
+	__le16 attr;
+	__le32  last_write_time;
+	__le32 size;
+	__u16  reserved[5];
+	__le16 ByteCount;	/* bcc = 0 */
+} __attribute__((packed)) QUERY_INFORMATION_RSP;
+
+typedef struct smb_com_setattr_req {
+	struct smb_hdr hdr; /* wct = 8 */
+	__le16 attr;
+	__le16 time_low;
+	__le16 time_high;
+	__le16 reserved[5]; /* must be zero */
+	__u16  ByteCount;
+	__u8   BufferFormat; /* 4 = ASCII */
+	unsigned char fileName[1];
+} __attribute__((packed)) SETATTR_REQ;
+
+typedef struct smb_com_setattr_rsp {
+	struct smb_hdr hdr;     /* wct = 0 */
+	__u16 ByteCount;        /* bct = 0 */
+} __attribute__((packed)) SETATTR_RSP;
+
+/* empty wct response to setattr */
+
+/*******************************************************/
+/* NT Transact structure definitions follow            */
+/* Currently only ioctl, acl (get security descriptor) */
+/* and notify are implemented                          */
+/*******************************************************/
+typedef struct smb_com_ntransact_req {
+	struct smb_hdr hdr; /* wct >= 19 */
+	__u8 MaxSetupCount;
+	__u16 Reserved;
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 MaxParameterCount;
+	__le32 MaxDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__u8 SetupCount; /* four setup words follow subcommand */
+	/* SNIA spec incorrectly included spurious pad here */
+	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
+	/* SetupCount words follow then */
+	__le16 ByteCount;
+	__u8 Pad[3];
+	__u8 Parms[0];
+} __attribute__((packed)) NTRANSACT_REQ;
+
+typedef struct smb_com_ntransact_rsp {
+	struct smb_hdr hdr;     /* wct = 18 */
+	__u8 Reserved[3];
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 ParameterDisplacement;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__le32 DataDisplacement;
+	__u8 SetupCount;   /* 0 */
+	__u16 ByteCount;
+	/* __u8 Pad[3]; */
+	/* parms and data follow */
+} __attribute__((packed)) NTRANSACT_RSP;
+
+typedef struct smb_com_transaction_ioctl_req {
+	struct smb_hdr hdr;	/* wct = 23 */
+	__u8 MaxSetupCount;
+	__u16 Reserved;
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 MaxParameterCount;
+	__le32 MaxDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__u8 SetupCount; /* four setup words follow subcommand */
+	/* SNIA spec incorrectly included spurious pad here */
+	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
+	__le32 FunctionCode;
+	__u16 Fid;
+	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
+	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
+	__le16 ByteCount;
+	__u8 Pad[3];
+	__u8 Data[1];
+} __attribute__((packed)) TRANSACT_IOCTL_REQ;
+
+typedef struct smb_com_transaction_ioctl_rsp {
+	struct smb_hdr hdr;	/* wct = 19 */
+	__u8 Reserved[3];
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 ParameterDisplacement;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__le32 DataDisplacement;
+	__u8 SetupCount;	/* 1 */
+	__le16 ReturnedDataLen;
+	__u16 ByteCount;
+} __attribute__((packed)) TRANSACT_IOCTL_RSP;
+
+#define CIFS_ACL_OWNER 1
+#define CIFS_ACL_GROUP 2
+#define CIFS_ACL_DACL  4
+#define CIFS_ACL_SACL  8
+
+typedef struct smb_com_transaction_qsec_req {
+	struct smb_hdr hdr;     /* wct = 19 */
+	__u8 MaxSetupCount;
+	__u16 Reserved;
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 MaxParameterCount;
+	__le32 MaxDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__u8 SetupCount; /* no setup words follow subcommand */
+	/* SNIA spec incorrectly included spurious pad here */
+	__le16 SubCommand; /* 6 = QUERY_SECURITY_DESC */
+	__le16 ByteCount; /* bcc = 3 + 8 */
+	__u8 Pad[3];
+	__u16 Fid;
+	__u16 Reserved2;
+	__le32 AclFlags;
+} __attribute__((packed)) QUERY_SEC_DESC_REQ;
+
+
+typedef struct smb_com_transaction_ssec_req {
+	struct smb_hdr hdr;     /* wct = 19 */
+	__u8 MaxSetupCount;
+	__u16 Reserved;
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 MaxParameterCount;
+	__le32 MaxDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__u8 SetupCount; /* no setup words follow subcommand */
+	/* SNIA spec incorrectly included spurious pad here */
+	__le16 SubCommand; /* 3 = SET_SECURITY_DESC */
+	__le16 ByteCount; /* bcc = 3 + 8 */
+	__u8 Pad[3];
+	__u16 Fid;
+	__u16 Reserved2;
+	__le32 AclFlags;
+} __attribute__((packed)) SET_SEC_DESC_REQ;
+
+typedef struct smb_com_transaction_change_notify_req {
+	struct smb_hdr hdr;     /* wct = 23 */
+	__u8 MaxSetupCount;
+	__u16 Reserved;
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 MaxParameterCount;
+	__le32 MaxDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__u8 SetupCount; /* four setup words follow subcommand */
+	/* SNIA spec incorrectly included spurious pad here */
+	__le16 SubCommand;/* 4 = Change Notify */
+	__le32 CompletionFilter;  /* operation to monitor */
+	__u16 Fid;
+	__u8 WatchTree;  /* 1 = Monitor subdirectories */
+	__u8 Reserved2;
+	__le16 ByteCount;
+/* 	__u8 Pad[3];*/
+/*	__u8 Data[1];*/
+} __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_REQ;
+
+/* BB eventually change to use generic ntransact rsp struct
+      and validation routine */
+typedef struct smb_com_transaction_change_notify_rsp {
+	struct smb_hdr hdr;	/* wct = 18 */
+	__u8 Reserved[3];
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 ParameterDisplacement;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__le32 DataDisplacement;
+	__u8 SetupCount;   /* 0 */
+	__u16 ByteCount;
+	/* __u8 Pad[3]; */
+} __attribute__((packed)) TRANSACT_CHANGE_NOTIFY_RSP;
+/* Completion Filter flags for Notify */
+#define FILE_NOTIFY_CHANGE_FILE_NAME    0x00000001
+#define FILE_NOTIFY_CHANGE_DIR_NAME     0x00000002
+#define FILE_NOTIFY_CHANGE_NAME         0x00000003
+#define FILE_NOTIFY_CHANGE_ATTRIBUTES   0x00000004
+#define FILE_NOTIFY_CHANGE_SIZE         0x00000008
+#define FILE_NOTIFY_CHANGE_LAST_WRITE   0x00000010
+#define FILE_NOTIFY_CHANGE_LAST_ACCESS  0x00000020
+#define FILE_NOTIFY_CHANGE_CREATION     0x00000040
+#define FILE_NOTIFY_CHANGE_EA           0x00000080
+#define FILE_NOTIFY_CHANGE_SECURITY     0x00000100
+#define FILE_NOTIFY_CHANGE_STREAM_NAME  0x00000200
+#define FILE_NOTIFY_CHANGE_STREAM_SIZE  0x00000400
+#define FILE_NOTIFY_CHANGE_STREAM_WRITE 0x00000800
+
+#define FILE_ACTION_ADDED		0x00000001
+#define FILE_ACTION_REMOVED		0x00000002
+#define FILE_ACTION_MODIFIED		0x00000003
+#define FILE_ACTION_RENAMED_OLD_NAME	0x00000004
+#define FILE_ACTION_RENAMED_NEW_NAME	0x00000005
+#define FILE_ACTION_ADDED_STREAM	0x00000006
+#define FILE_ACTION_REMOVED_STREAM	0x00000007
+#define FILE_ACTION_MODIFIED_STREAM	0x00000008
+
+/* response contains array of the following structures */
+struct file_notify_information {
+	__le32 NextEntryOffset;
+	__le32 Action;
+	__le32 FileNameLength;
+	__u8  FileName[0];
+} __attribute__((packed));
+
+struct reparse_data {
+	__u32	ReparseTag;
+	__u16	ReparseDataLength;
+	__u16	Reserved;
+	__u16	AltNameOffset;
+	__u16	AltNameLen;
+	__u16	TargetNameOffset;
+	__u16	TargetNameLen;
+	char	LinkNamesBuf[1];
+} __attribute__((packed));
+
+struct cifs_quota_data {
+	__u32	rsrvd1;  /* 0 */
+	__u32	sid_size;
+	__u64	rsrvd2;  /* 0 */
+	__u64	space_used;
+	__u64	soft_limit;
+	__u64	hard_limit;
+	char	sid[1];  /* variable size? */
+} __attribute__((packed));
+
+/* quota sub commands */
+#define QUOTA_LIST_CONTINUE	    0
+#define QUOTA_LIST_START	0x100
+#define QUOTA_FOR_SID		0x101
+
+struct trans2_req {
+	/* struct smb_hdr hdr precedes. Set wct = 14+ */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__u8 SetupCount;
+	__u8 Reserved3;
+	__le16 SubCommand; /* 1st setup word - SetupCount words follow */
+	__le16 ByteCount;
+} __attribute__((packed));
+
+struct smb_t2_req {
+	struct smb_hdr hdr;
+	struct trans2_req t2_req;
+} __attribute__((packed));
+
+struct trans2_resp {
+	/* struct smb_hdr hdr precedes. Note wct = 10 + setup count */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__u16 Reserved;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 ParameterDisplacement;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__le16 DataDisplacement;
+	__u8 SetupCount;
+	__u8 Reserved1;
+	/* SetupWords[SetupCount];
+	__u16 ByteCount;
+	__u16 Reserved2;*/
+	/* data area follows */
+} __attribute__((packed));
+
+struct smb_t2_rsp {
+	struct smb_hdr hdr;
+	struct trans2_resp t2_rsp;
+} __attribute__((packed));
+
+/* PathInfo/FileInfo infolevels */
+#define SMB_INFO_STANDARD                   1
+#define SMB_SET_FILE_EA                     2
+#define SMB_QUERY_FILE_EA_SIZE              2
+#define SMB_INFO_QUERY_EAS_FROM_LIST        3
+#define SMB_INFO_QUERY_ALL_EAS              4
+#define SMB_INFO_IS_NAME_VALID              6
+#define SMB_QUERY_FILE_BASIC_INFO       0x101
+#define SMB_QUERY_FILE_STANDARD_INFO    0x102
+#define SMB_QUERY_FILE_EA_INFO          0x103
+#define SMB_QUERY_FILE_NAME_INFO        0x104
+#define SMB_QUERY_FILE_ALLOCATION_INFO  0x105
+#define SMB_QUERY_FILE_END_OF_FILEINFO  0x106
+#define SMB_QUERY_FILE_ALL_INFO         0x107
+#define SMB_QUERY_ALT_NAME_INFO         0x108
+#define SMB_QUERY_FILE_STREAM_INFO      0x109
+#define SMB_QUERY_FILE_COMPRESSION_INFO 0x10B
+#define SMB_QUERY_FILE_UNIX_BASIC       0x200
+#define SMB_QUERY_FILE_UNIX_LINK        0x201
+#define SMB_QUERY_POSIX_ACL             0x204
+#define SMB_QUERY_XATTR                 0x205  /* e.g. system EA name space */
+#define SMB_QUERY_ATTR_FLAGS            0x206  /* append,immutable etc. */
+#define SMB_QUERY_POSIX_PERMISSION      0x207
+#define SMB_QUERY_POSIX_LOCK            0x208
+/* #define SMB_POSIX_OPEN               0x209 */
+/* #define SMB_POSIX_UNLINK             0x20a */
+#define SMB_QUERY_FILE__UNIX_INFO2      0x20b
+#define SMB_QUERY_FILE_INTERNAL_INFO    0x3ee
+#define SMB_QUERY_FILE_ACCESS_INFO      0x3f0
+#define SMB_QUERY_FILE_NAME_INFO2       0x3f1 /* 0x30 bytes */
+#define SMB_QUERY_FILE_POSITION_INFO    0x3f6
+#define SMB_QUERY_FILE_MODE_INFO        0x3f8
+#define SMB_QUERY_FILE_ALGN_INFO        0x3f9
+
+
+#define SMB_SET_FILE_BASIC_INFO	        0x101
+#define SMB_SET_FILE_DISPOSITION_INFO   0x102
+#define SMB_SET_FILE_ALLOCATION_INFO    0x103
+#define SMB_SET_FILE_END_OF_FILE_INFO   0x104
+#define SMB_SET_FILE_UNIX_BASIC         0x200
+#define SMB_SET_FILE_UNIX_LINK          0x201
+#define SMB_SET_FILE_UNIX_HLINK         0x203
+#define SMB_SET_POSIX_ACL               0x204
+#define SMB_SET_XATTR                   0x205
+#define SMB_SET_ATTR_FLAGS              0x206  /* append, immutable etc. */
+#define SMB_SET_POSIX_LOCK              0x208
+#define SMB_POSIX_OPEN                  0x209
+#define SMB_POSIX_UNLINK                0x20a
+#define SMB_SET_FILE_UNIX_INFO2         0x20b
+#define SMB_SET_FILE_BASIC_INFO2        0x3ec
+#define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo too */
+#define SMB_FILE_ALL_INFO2              0x3fa
+#define SMB_SET_FILE_ALLOCATION_INFO2   0x3fb
+#define SMB_SET_FILE_END_OF_FILE_INFO2  0x3fc
+#define SMB_FILE_MOVE_CLUSTER_INFO      0x407
+#define SMB_FILE_QUOTA_INFO             0x408
+#define SMB_FILE_REPARSEPOINT_INFO      0x409
+#define SMB_FILE_MAXIMUM_INFO           0x40d
+
+/* Find File infolevels */
+#define SMB_FIND_FILE_INFO_STANDARD       0x001
+#define SMB_FIND_FILE_QUERY_EA_SIZE       0x002
+#define SMB_FIND_FILE_QUERY_EAS_FROM_LIST 0x003
+#define SMB_FIND_FILE_DIRECTORY_INFO      0x101
+#define SMB_FIND_FILE_FULL_DIRECTORY_INFO 0x102
+#define SMB_FIND_FILE_NAMES_INFO          0x103
+#define SMB_FIND_FILE_BOTH_DIRECTORY_INFO 0x104
+#define SMB_FIND_FILE_ID_FULL_DIR_INFO    0x105
+#define SMB_FIND_FILE_ID_BOTH_DIR_INFO    0x106
+#define SMB_FIND_FILE_UNIX                0x202
+
+typedef struct smb_com_transaction2_qpi_req {
+	struct smb_hdr hdr;	/* wct = 14+ */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__u8 SetupCount;
+	__u8 Reserved3;
+	__le16 SubCommand;	/* one setup word */
+	__le16 ByteCount;
+	__u8 Pad;
+	__le16 InformationLevel;
+	__u32 Reserved4;
+	char FileName[1];
+} __attribute__((packed)) TRANSACTION2_QPI_REQ;
+
+typedef struct smb_com_transaction2_qpi_rsp {
+	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
+} __attribute__((packed)) TRANSACTION2_QPI_RSP;
+
+typedef struct smb_com_transaction2_spi_req {
+	struct smb_hdr hdr;	/* wct = 15 */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__u8 SetupCount;
+	__u8 Reserved3;
+	__le16 SubCommand;	/* one setup word */
+	__le16 ByteCount;
+	__u8 Pad;
+	__u16 Pad1;
+	__le16 InformationLevel;
+	__u32 Reserved4;
+	char FileName[1];
+} __attribute__((packed)) TRANSACTION2_SPI_REQ;
+
+typedef struct smb_com_transaction2_spi_rsp {
+	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+	__u16 Reserved2; /* parameter word is present for infolevels > 100 */
+} __attribute__((packed)) TRANSACTION2_SPI_RSP;
+
+struct set_file_rename {
+	__le32 overwrite;   /* 1 = overwrite dest */
+	__u32 root_fid;   /* zero */
+	__le32 target_name_len;
+	char  target_name[0];  /* Must be unicode */
+} __attribute__((packed));
+
+struct smb_com_transaction2_sfi_req {
+	struct smb_hdr hdr;	/* wct = 15 */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__u8 SetupCount;
+	__u8 Reserved3;
+	__le16 SubCommand;	/* one setup word */
+	__le16 ByteCount;
+	__u8 Pad;
+	__u16 Pad1;
+	__u16 Fid;
+	__le16 InformationLevel;
+	__u16 Reserved4;
+} __attribute__((packed));
+
+struct smb_com_transaction2_sfi_rsp {
+	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+	__u16 Reserved2;	/* parameter word reserved -
+					present for infolevels > 100 */
+} __attribute__((packed));
+
+struct smb_t2_qfi_req {
+	struct	smb_hdr hdr;
+	struct	trans2_req t2;
+	__u8	Pad;
+	__u16	Fid;
+	__le16	InformationLevel;
+} __attribute__((packed));
+
+struct smb_t2_qfi_rsp {
+	struct smb_hdr hdr;     /* wct = 10 + SetupCount */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+	__u16 Reserved2;        /* parameter word reserved -
+				   present for infolevels > 100 */
+} __attribute__((packed));
+
+/*
+ * Flags on T2 FINDFIRST and FINDNEXT
+ */
+#define CIFS_SEARCH_CLOSE_ALWAYS  0x0001
+#define CIFS_SEARCH_CLOSE_AT_END  0x0002
+#define CIFS_SEARCH_RETURN_RESUME 0x0004
+#define CIFS_SEARCH_CONTINUE_FROM_LAST 0x0008
+#define CIFS_SEARCH_BACKUP_SEARCH 0x0010
+
+/*
+ * Size of the resume key on FINDFIRST and FINDNEXT calls
+ */
+#define CIFS_SMB_RESUME_KEY_SIZE 4
+
+typedef struct smb_com_transaction2_ffirst_req {
+	struct smb_hdr hdr;	/* wct = 15 */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__u8 SetupCount;	/* one */
+	__u8 Reserved3;
+	__le16 SubCommand;	/* TRANS2_FIND_FIRST */
+	__le16 ByteCount;
+	__u8 Pad;
+	__le16 SearchAttributes;
+	__le16 SearchCount;
+	__le16 SearchFlags;
+	__le16 InformationLevel;
+	__le32 SearchStorageType;
+	char FileName[1];
+} __attribute__((packed)) TRANSACTION2_FFIRST_REQ;
+
+typedef struct smb_com_transaction2_ffirst_rsp {
+	struct smb_hdr hdr;	/* wct = 10 */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+} __attribute__((packed)) TRANSACTION2_FFIRST_RSP;
+
+typedef struct smb_com_transaction2_ffirst_rsp_parms {
+	__u16 SearchHandle;
+	__le16 SearchCount;
+	__le16 EndofSearch;
+	__le16 EAErrorOffset;
+	__le16 LastNameOffset;
+} __attribute__((packed)) T2_FFIRST_RSP_PARMS;
+
+typedef struct smb_com_transaction2_fnext_req {
+	struct smb_hdr hdr;	/* wct = 15 */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__u8 SetupCount;	/* one */
+	__u8 Reserved3;
+	__le16 SubCommand;	/* TRANS2_FIND_NEXT */
+	__le16 ByteCount;
+	__u8 Pad;
+	__u16 SearchHandle;
+	__le16 SearchCount;
+	__le16 InformationLevel;
+	__u32 ResumeKey;
+	__le16 SearchFlags;
+	char ResumeFileName[1];
+} __attribute__((packed)) TRANSACTION2_FNEXT_REQ;
+
+typedef struct smb_com_transaction2_fnext_rsp {
+	struct smb_hdr hdr;	/* wct = 10 */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+} __attribute__((packed)) TRANSACTION2_FNEXT_RSP;
+
+typedef struct smb_com_transaction2_fnext_rsp_parms {
+	__le16 SearchCount;
+	__le16 EndofSearch;
+	__le16 EAErrorOffset;
+	__le16 LastNameOffset;
+} __attribute__((packed)) T2_FNEXT_RSP_PARMS;
+
+/* QFSInfo Levels */
+#define SMB_INFO_ALLOCATION         1
+#define SMB_INFO_VOLUME             2
+#define SMB_QUERY_FS_VOLUME_INFO    0x102
+#define SMB_QUERY_FS_SIZE_INFO      0x103
+#define SMB_QUERY_FS_DEVICE_INFO    0x104
+#define SMB_QUERY_FS_ATTRIBUTE_INFO 0x105
+#define SMB_QUERY_CIFS_UNIX_INFO    0x200
+#define SMB_QUERY_POSIX_FS_INFO     0x201
+#define SMB_QUERY_POSIX_WHO_AM_I    0x202
+#define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203
+#define SMB_QUERY_FS_PROXY          0x204 /* WAFS enabled. Returns structure
+					    FILE_SYSTEM__UNIX_INFO to tell
+					    whether new NTIOCTL available
+					    (0xACE) for WAN friendly SMB
+					    operations to be carried */
+#define SMB_QUERY_LABEL_INFO        0x3ea
+#define SMB_QUERY_FS_QUOTA_INFO     0x3ee
+#define SMB_QUERY_FS_FULL_SIZE_INFO 0x3ef
+#define SMB_QUERY_OBJECTID_INFO     0x3f0
+
+typedef struct smb_com_transaction2_qfsi_req {
+	struct smb_hdr hdr;	/* wct = 14+ */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__u8 SetupCount;
+	__u8 Reserved3;
+	__le16 SubCommand;	/* one setup word */
+	__le16 ByteCount;
+	__u8 Pad;
+	__le16 InformationLevel;
+} __attribute__((packed)) TRANSACTION2_QFSI_REQ;
+
+typedef struct smb_com_transaction_qfsi_rsp {
+	struct smb_hdr hdr;	/* wct = 10 + SetupCount */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+	__u8 Pad;	/* may be three bytes? *//* followed by data area */
+} __attribute__((packed)) TRANSACTION2_QFSI_RSP;
+
+typedef struct whoami_rsp_data { /* Query level 0x202 */
+	__u32 flags; /* 0 = Authenticated user 1 = GUEST */
+	__u32 mask; /* which flags bits server understands ie 0x0001 */
+	__u64 unix_user_id;
+	__u64 unix_user_gid;
+	__u32 number_of_supplementary_gids; /* may be zero */
+	__u32 number_of_sids; /* may be zero */
+	__u32 length_of_sid_array; /* in bytes - may be zero */
+	__u32 pad; /* reserved - MBZ */
+	/* __u64 gid_array[0]; */  /* may be empty */
+	/* __u8 * psid_list */  /* may be empty */
+} __attribute__((packed)) WHOAMI_RSP_DATA;
+
+/* SETFSInfo Levels */
+#define SMB_SET_CIFS_UNIX_INFO    0x200
+/* level 0x203 is defined above in list of QFS info levels */
+/* #define SMB_REQUEST_TRANSPORT_ENCRYPTION 0x203 */
+
+/* Level 0x200 request structure follows */
+typedef struct smb_com_transaction2_setfsi_req {
+	struct smb_hdr hdr;	/* wct = 15 */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;	/* 4 */
+	__le16 ParameterOffset;
+	__le16 DataCount;	/* 12 */
+	__le16 DataOffset;
+	__u8 SetupCount;	/* one */
+	__u8 Reserved3;
+	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
+	__le16 ByteCount;
+	__u8 Pad;
+	__u16 FileNum;		/* Parameters start. */
+	__le16 InformationLevel;/* Parameters end. */
+	__le16 ClientUnixMajor; /* Data start. */
+	__le16 ClientUnixMinor;
+	__le64 ClientUnixCap;   /* Data end */
+} __attribute__((packed)) TRANSACTION2_SETFSI_REQ;
+
+/* level 0x203 request structure follows */
+typedef struct smb_com_transaction2_setfs_enc_req {
+	struct smb_hdr hdr;	/* wct = 15 */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;	/* 4 */
+	__le16 ParameterOffset;
+	__le16 DataCount;	/* 12 */
+	__le16 DataOffset;
+	__u8 SetupCount;	/* one */
+	__u8 Reserved3;
+	__le16 SubCommand;	/* TRANS2_SET_FS_INFORMATION */
+	__le16 ByteCount;
+	__u8 Pad;
+	__u16  Reserved4;	/* Parameters start. */
+	__le16 InformationLevel;/* Parameters end. */
+	/* NTLMSSP Blob, Data start. */
+} __attribute__((packed)) TRANSACTION2_SETFSI_ENC_REQ;
+
+/* response for setfsinfo levels 0x200 and 0x203 */
+typedef struct smb_com_transaction2_setfsi_rsp {
+	struct smb_hdr hdr;	/* wct = 10 */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+} __attribute__((packed)) TRANSACTION2_SETFSI_RSP;
+
+typedef struct smb_com_transaction2_get_dfs_refer_req {
+	struct smb_hdr hdr;	/* wct = 15 */
+	__le16 TotalParameterCount;
+	__le16 TotalDataCount;
+	__le16 MaxParameterCount;
+	__le16 MaxDataCount;
+	__u8 MaxSetupCount;
+	__u8 Reserved;
+	__le16 Flags;
+	__le32 Timeout;
+	__u16 Reserved2;
+	__le16 ParameterCount;
+	__le16 ParameterOffset;
+	__le16 DataCount;
+	__le16 DataOffset;
+	__u8 SetupCount;
+	__u8 Reserved3;
+	__le16 SubCommand;	/* one setup word */
+	__le16 ByteCount;
+	__u8 Pad[3];		/* Win2K has sent 0x0F01 (max response length
+				   perhaps?) followed by one byte pad - doesn't
+				   seem to matter though */
+	__le16 MaxReferralLevel;
+	char RequestFileName[1];
+} __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_REQ;
+
+#define DFS_VERSION cpu_to_le16(0x0003)
+
+/* DFS server target type */
+#define DFS_TYPE_LINK 0x0000  /* also for sysvol targets */
+#define DFS_TYPE_ROOT 0x0001
+
+/* Referral Entry Flags */
+#define DFS_NAME_LIST_REF 0x0200 /* set for domain or DC referral responses */
+#define DFS_TARGET_SET_BOUNDARY 0x0400 /* only valid with version 4 dfs req */
+
+typedef struct dfs_referral_level_3 { /* version 4 is same, + one flag bit */
+	__le16 VersionNumber;  /* must be 3 or 4 */
+	__le16 Size;
+	__le16 ServerType; /* 0x0001 = root targets; 0x0000 = link targets */
+	__le16 ReferralEntryFlags;
+	__le32 TimeToLive;
+	__le16 DfsPathOffset;
+	__le16 DfsAlternatePathOffset;
+	__le16 NetworkAddressOffset; /* offset of the link target */
+	__u8   ServiceSiteGuid[16];  /* MBZ, ignored */
+} __attribute__((packed)) REFERRAL3;
+
+typedef struct smb_com_transaction_get_dfs_refer_rsp {
+	struct smb_hdr hdr;	/* wct = 10 */
+	struct trans2_resp t2;
+	__u16 ByteCount;
+	__u8 Pad;
+	__le16 PathConsumed;
+	__le16 NumberOfReferrals;
+	__le32 DFSFlags;
+	REFERRAL3 referrals[1];	/* array of level 3 dfs_referral structures */
+	/* followed by the strings pointed to by the referral structures */
+} __attribute__((packed)) TRANSACTION2_GET_DFS_REFER_RSP;
+
+/* DFS Flags */
+#define DFSREF_REFERRAL_SERVER  0x00000001 /* all targets are DFS roots */
+#define DFSREF_STORAGE_SERVER   0x00000002 /* no further ref requests needed */
+#define DFSREF_TARGET_FAILBACK  0x00000004 /* only for DFS referral version 4 */
+
+/*
+ ************************************************************************
+ * All structs for everything above the SMB PDUs themselves
+ * (such as the T2 level specific data) go here
+ ************************************************************************
+ */
+
+/*
+ * Information on a server
+ */
+
+struct serverInfo {
+	char name[16];
+	unsigned char versionMajor;
+	unsigned char versionMinor;
+	unsigned long type;
+	unsigned int commentOffset;
+} __attribute__((packed));
+
+/*
+ * The following structure is the format of the data returned on a NetShareEnum
+ * with level "90" (x5A)
+ */
+
+struct shareInfo {
+	char shareName[13];
+	char pad;
+	unsigned short type;
+	unsigned int commentOffset;
+} __attribute__((packed));
+
+struct aliasInfo {
+	char aliasName[9];
+	char pad;
+	unsigned int commentOffset;
+	unsigned char type[2];
+} __attribute__((packed));
+
+struct aliasInfo92 {
+	int aliasNameOffset;
+	int serverNameOffset;
+	int shareNameOffset;
+} __attribute__((packed));
+
+typedef struct {
+	__le64 TotalAllocationUnits;
+	__le64 FreeAllocationUnits;
+	__le32 SectorsPerAllocationUnit;
+	__le32 BytesPerSector;
+} __attribute__((packed)) FILE_SYSTEM_INFO;	/* size info, level 0x103 */
+
+typedef struct {
+	__le32 fsid;
+	__le32 SectorsPerAllocationUnit;
+	__le32 TotalAllocationUnits;
+	__le32 FreeAllocationUnits;
+	__le16  BytesPerSector;
+} __attribute__((packed)) FILE_SYSTEM_ALLOC_INFO;
+
+typedef struct {
+	__le16 MajorVersionNumber;
+	__le16 MinorVersionNumber;
+	__le64 Capability;
+} __attribute__((packed)) FILE_SYSTEM_UNIX_INFO; /* Unix extension level 0x200*/
+
+/* Version numbers for CIFS UNIX major and minor. */
+#define CIFS_UNIX_MAJOR_VERSION 1
+#define CIFS_UNIX_MINOR_VERSION 0
+
+/* Linux/Unix extensions capability flags */
+#define CIFS_UNIX_FCNTL_CAP             0x00000001 /* support for fcntl locks */
+#define CIFS_UNIX_POSIX_ACL_CAP         0x00000002 /* support getfacl/setfacl */
+#define CIFS_UNIX_XATTR_CAP             0x00000004 /* support new namespace   */
+#define CIFS_UNIX_EXTATTR_CAP           0x00000008 /* support chattr/chflag   */
+#define CIFS_UNIX_POSIX_PATHNAMES_CAP   0x00000010 /* Allow POSIX path chars  */
+#define CIFS_UNIX_POSIX_PATH_OPS_CAP    0x00000020 /* Allow new POSIX path based
+						      calls including posix open
+						      and posix unlink */
+#define CIFS_UNIX_LARGE_READ_CAP        0x00000040 /* support reads >128K (up
+						      to 0xFFFF00 */
+#define CIFS_UNIX_LARGE_WRITE_CAP       0x00000080
+#define CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP 0x00000100 /* can do SPNEGO crypt */
+#define CIFS_UNIX_TRANSPORT_ENCRYPTION_MANDATORY_CAP  0x00000200 /* must do  */
+#define CIFS_UNIX_PROXY_CAP             0x00000400 /* Proxy cap: 0xACE ioctl and
+						      QFS PROXY call */
+#ifdef CONFIG_CIFS_POSIX
+/* presumably don't need the 0x20 POSIX_PATH_OPS_CAP since we never send
+   LockingX instead of posix locking call on unix sess (and we do not expect
+   LockingX to use different (ie Windows) semantics than posix locking on
+   the same session (if WINE needs to do this later, we can add this cap
+   back in later */
+/* #define CIFS_UNIX_CAP_MASK              0x000000fb */
+#define CIFS_UNIX_CAP_MASK              0x000003db
+#else
+#define CIFS_UNIX_CAP_MASK              0x00000013
+#endif /* CONFIG_CIFS_POSIX */
+
+
+#define CIFS_POSIX_EXTENSIONS           0x00000010 /* support for new QFSInfo */
+
+typedef struct {
+	/* For undefined recommended transfer size return -1 in that field */
+	__le32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
+	__le32 BlockSize;
+    /* The next three fields are in terms of the block size.
+	(above). If block size is unknown, 4096 would be a
+	reasonable block size for a server to report.
+	Note that returning the blocks/blocksavail removes need
+	to make a second call (to QFSInfo level 0x103 to get this info.
+	UserBlockAvail is typically less than or equal to BlocksAvail,
+	if no distinction is made return the same value in each */
+	__le64 TotalBlocks;
+	__le64 BlocksAvail;       /* bfree */
+	__le64 UserBlocksAvail;   /* bavail */
+    /* For undefined Node fields or FSID return -1 */
+	__le64 TotalFileNodes;
+	__le64 FreeFileNodes;
+	__le64 FileSysIdentifier;   /* fsid */
+	/* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
+	/* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
+} __attribute__((packed)) FILE_SYSTEM_POSIX_INFO;
+
+/* DeviceType Flags */
+#define FILE_DEVICE_CD_ROM              0x00000002
+#define FILE_DEVICE_CD_ROM_FILE_SYSTEM  0x00000003
+#define FILE_DEVICE_DFS                 0x00000006
+#define FILE_DEVICE_DISK                0x00000007
+#define FILE_DEVICE_DISK_FILE_SYSTEM    0x00000008
+#define FILE_DEVICE_FILE_SYSTEM         0x00000009
+#define FILE_DEVICE_NAMED_PIPE          0x00000011
+#define FILE_DEVICE_NETWORK             0x00000012
+#define FILE_DEVICE_NETWORK_FILE_SYSTEM 0x00000014
+#define FILE_DEVICE_NULL                0x00000015
+#define FILE_DEVICE_PARALLEL_PORT       0x00000016
+#define FILE_DEVICE_PRINTER             0x00000018
+#define FILE_DEVICE_SERIAL_PORT         0x0000001b
+#define FILE_DEVICE_STREAMS             0x0000001e
+#define FILE_DEVICE_TAPE                0x0000001f
+#define FILE_DEVICE_TAPE_FILE_SYSTEM    0x00000020
+#define FILE_DEVICE_VIRTUAL_DISK        0x00000024
+#define FILE_DEVICE_NETWORK_REDIRECTOR  0x00000028
+
+typedef struct {
+	__le32 DeviceType;
+	__le32 DeviceCharacteristics;
+} __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
+
+typedef struct {
+	__le32 Attributes;
+	__le32 MaxPathNameComponentLength;
+	__le32 FileSystemNameLen;
+	char FileSystemName[52]; /* do not have to save this - get subset? */
+} __attribute__((packed)) FILE_SYSTEM_ATTRIBUTE_INFO;
+
+/******************************************************************************/
+/* QueryFileInfo/QueryPathinfo (also for SetPath/SetFile) data buffer formats */
+/******************************************************************************/
+typedef struct { /* data block encoding of response to level 263 QPathInfo */
+	__le64 CreationTime;
+	__le64 LastAccessTime;
+	__le64 LastWriteTime;
+	__le64 ChangeTime;
+	__le32 Attributes;
+	__u32 Pad1;
+	__le64 AllocationSize;
+	__le64 EndOfFile;	/* size ie offset to first free byte in file */
+	__le32 NumberOfLinks;	/* hard links */
+	__u8 DeletePending;
+	__u8 Directory;
+	__u16 Pad2;
+	__u64 IndexNumber;
+	__le32 EASize;
+	__le32 AccessFlags;
+	__u64 IndexNumber1;
+	__le64 CurrentByteOffset;
+	__le32 Mode;
+	__le32 AlignmentRequirement;
+	__le32 FileNameLength;
+	char FileName[1];
+} __attribute__((packed)) FILE_ALL_INFO;	/* level 0x107 QPathInfo */
+
+/* defines for enumerating possible values of the Unix type field below */
+#define UNIX_FILE      0
+#define UNIX_DIR       1
+#define UNIX_SYMLINK   2
+#define UNIX_CHARDEV   3
+#define UNIX_BLOCKDEV  4
+#define UNIX_FIFO      5
+#define UNIX_SOCKET    6
+typedef struct {
+	__le64 EndOfFile;
+	__le64 NumOfBytes;
+	__le64 LastStatusChange; /*SNIA specs DCE time for the 3 time fields */
+	__le64 LastAccessTime;
+	__le64 LastModificationTime;
+	__le64 Uid;
+	__le64 Gid;
+	__le32 Type;
+	__le64 DevMajor;
+	__le64 DevMinor;
+	__le64 UniqueId;
+	__le64 Permissions;
+	__le64 Nlinks;
+} __attribute__((packed)) FILE_UNIX_BASIC_INFO;	/* level 0x200 QPathInfo */
+
+typedef struct {
+	char LinkDest[1];
+} __attribute__((packed)) FILE_UNIX_LINK_INFO;	/* level 0x201 QPathInfo */
+
+/* The following three structures are needed only for
+	setting time to NT4 and some older servers via
+	the primitive DOS time format */
+typedef struct {
+	__u16 Day:5;
+	__u16 Month:4;
+	__u16 Year:7;
+} __attribute__((packed)) SMB_DATE;
+
+typedef struct {
+	__u16 TwoSeconds:5;
+	__u16 Minutes:6;
+	__u16 Hours:5;
+} __attribute__((packed)) SMB_TIME;
+
+typedef struct {
+	__le16 CreationDate; /* SMB Date see above */
+	__le16 CreationTime; /* SMB Time */
+	__le16 LastAccessDate;
+	__le16 LastAccessTime;
+	__le16 LastWriteDate;
+	__le16 LastWriteTime;
+	__le32 DataSize; /* File Size (EOF) */
+	__le32 AllocationSize;
+	__le16 Attributes; /* verify not u32 */
+	__le32 EASize;
+} __attribute__((packed)) FILE_INFO_STANDARD;  /* level 1 SetPath/FileInfo */
+
+typedef struct {
+	__le64 CreationTime;
+	__le64 LastAccessTime;
+	__le64 LastWriteTime;
+	__le64 ChangeTime;
+	__le32 Attributes;
+	__u32 Pad;
+} __attribute__((packed)) FILE_BASIC_INFO;	/* size info, level 0x101 */
+
+struct file_allocation_info {
+	__le64 AllocationSize; /* Note old Samba srvr rounds this up too much */
+} __attribute__((packed));	/* size used on disk, for level 0x103 for set,
+				   0x105 for query */
+
+struct file_end_of_file_info {
+	__le64 FileSize;		/* offset to end of file */
+} __attribute__((packed)); /* size info, level 0x104 for set, 0x106 for query */
+
+struct file_alt_name_info {
+	__u8   alt_name[1];
+} __attribute__((packed));      /* level 0x0108 */
+
+struct file_stream_info {
+	__le32 number_of_streams;  /* BB check sizes and verify location */
+	/* followed by info on streams themselves
+		u64 size;
+		u64 allocation_size
+		stream info */
+};      /* level 0x109 */
+
+struct file_compression_info {
+	__le64 compressed_size;
+	__le16 format;
+	__u8   unit_shift;
+	__u8   ch_shift;
+	__u8   cl_shift;
+	__u8   pad[3];
+} __attribute__((packed));      /* level 0x10b */
+
+/* POSIX ACL set/query path info structures */
+#define CIFS_ACL_VERSION 1
+struct cifs_posix_ace { /* access control entry (ACE) */
+	__u8  cifs_e_tag;
+	__u8  cifs_e_perm;
+	__le64 cifs_uid; /* or gid */
+} __attribute__((packed));
+
+struct cifs_posix_acl { /* access conrol list  (ACL) */
+	__le16	version;
+	__le16	access_entry_count;  /* access ACL - count of entries */
+	__le16	default_entry_count; /* default ACL - count of entries */
+	struct cifs_posix_ace ace_array[0];
+	/* followed by
+	struct cifs_posix_ace default_ace_arraay[] */
+} __attribute__((packed));  /* level 0x204 */
+
+/* types of access control entries already defined in posix_acl.h */
+/* #define CIFS_POSIX_ACL_USER_OBJ	 0x01
+#define CIFS_POSIX_ACL_USER      0x02
+#define CIFS_POSIX_ACL_GROUP_OBJ 0x04
+#define CIFS_POSIX_ACL_GROUP     0x08
+#define CIFS_POSIX_ACL_MASK      0x10
+#define CIFS_POSIX_ACL_OTHER     0x20 */
+
+/* types of perms */
+/* #define CIFS_POSIX_ACL_EXECUTE   0x01
+#define CIFS_POSIX_ACL_WRITE     0x02
+#define CIFS_POSIX_ACL_READ	     0x04 */
+
+/* end of POSIX ACL definitions */
+
+/* POSIX Open Flags */
+#define SMB_O_RDONLY 	 0x1
+#define SMB_O_WRONLY 	0x2
+#define SMB_O_RDWR 	0x4
+#define SMB_O_CREAT 	0x10
+#define SMB_O_EXCL 	0x20
+#define SMB_O_TRUNC 	0x40
+#define SMB_O_APPEND 	0x80
+#define SMB_O_SYNC 	0x100
+#define SMB_O_DIRECTORY 0x200
+#define SMB_O_NOFOLLOW 	0x400
+#define SMB_O_DIRECT 	0x800
+
+typedef struct {
+	__le32 OpenFlags; /* same as NT CreateX */
+	__le32 PosixOpenFlags;
+	__le64 Permissions;
+	__le16 Level; /* reply level requested (see QPathInfo levels) */
+} __attribute__((packed)) OPEN_PSX_REQ; /* level 0x209 SetPathInfo data */
+
+typedef struct {
+	__le16 OplockFlags;
+	__u16 Fid;
+	__le32 CreateAction;
+	__le16 ReturnedLevel;
+	__le16 Pad;
+	/* struct following varies based on requested level */
+} __attribute__((packed)) OPEN_PSX_RSP; /* level 0x209 SetPathInfo data */
+
+#define SMB_POSIX_UNLINK_FILE_TARGET		0
+#define SMB_POSIX_UNLINK_DIRECTORY_TARGET	1
+
+struct unlink_psx_rq { /* level 0x20a SetPathInfo */
+	__le16 type;
+} __attribute__((packed));
+
+struct file_internal_info {
+	__le64  UniqueId; /* inode number */
+} __attribute__((packed));      /* level 0x3ee */
+
+struct file_mode_info {
+	__le32	Mode;
+} __attribute__((packed));      /* level 0x3f8 */
+
+struct file_attrib_tag {
+	__le32 Attribute;
+	__le32 ReparseTag;
+} __attribute__((packed));      /* level 0x40b */
+
+
+/********************************************************/
+/*  FindFirst/FindNext transact2 data buffer formats    */
+/********************************************************/
+
+typedef struct {
+	__le32 NextEntryOffset;
+	__u32 ResumeKey; /* as with FileIndex - no need to convert */
+	FILE_UNIX_BASIC_INFO basic;
+	char FileName[1];
+} __attribute__((packed)) FILE_UNIX_INFO; /* level 0x202 */
+
+typedef struct {
+	__le32 NextEntryOffset;
+	__u32 FileIndex;
+	__le64 CreationTime;
+	__le64 LastAccessTime;
+	__le64 LastWriteTime;
+	__le64 ChangeTime;
+	__le64 EndOfFile;
+	__le64 AllocationSize;
+	__le32 ExtFileAttributes;
+	__le32 FileNameLength;
+	char FileName[1];
+} __attribute__((packed)) FILE_DIRECTORY_INFO;   /* level 0x101 FF resp data */
+
+typedef struct {
+	__le32 NextEntryOffset;
+	__u32 FileIndex;
+	__le64 CreationTime;
+	__le64 LastAccessTime;
+	__le64 LastWriteTime;
+	__le64 ChangeTime;
+	__le64 EndOfFile;
+	__le64 AllocationSize;
+	__le32 ExtFileAttributes;
+	__le32 FileNameLength;
+	__le32 EaSize; /* length of the xattrs */
+	char FileName[1];
+} __attribute__((packed)) FILE_FULL_DIRECTORY_INFO; /* level 0x102 rsp data */
+
+typedef struct {
+	__le32 NextEntryOffset;
+	__u32 FileIndex;
+	__le64 CreationTime;
+	__le64 LastAccessTime;
+	__le64 LastWriteTime;
+	__le64 ChangeTime;
+	__le64 EndOfFile;
+	__le64 AllocationSize;
+	__le32 ExtFileAttributes;
+	__le32 FileNameLength;
+	__le32 EaSize; /* EA size */
+	__le32 Reserved;
+	__le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/
+	char FileName[1];
+} __attribute__((packed)) SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF rsp data */
+
+typedef struct {
+	__le32 NextEntryOffset;
+	__u32 FileIndex;
+	__le64 CreationTime;
+	__le64 LastAccessTime;
+	__le64 LastWriteTime;
+	__le64 ChangeTime;
+	__le64 EndOfFile;
+	__le64 AllocationSize;
+	__le32 ExtFileAttributes;
+	__le32 FileNameLength;
+	__le32 EaSize; /* length of the xattrs */
+	__u8   ShortNameLength;
+	__u8   Reserved;
+	__u8   ShortName[12];
+	char FileName[1];
+} __attribute__((packed)) FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FFrsp data */
+
+typedef struct {
+	__u32  ResumeKey;
+	__le16 CreationDate; /* SMB Date */
+	__le16 CreationTime; /* SMB Time */
+	__le16 LastAccessDate;
+	__le16 LastAccessTime;
+	__le16 LastWriteDate;
+	__le16 LastWriteTime;
+	__le32 DataSize; /* File Size (EOF) */
+	__le32 AllocationSize;
+	__le16 Attributes; /* verify not u32 */
+	__u8   FileNameLength;
+	char FileName[1];
+} __attribute__((packed)) FIND_FILE_STANDARD_INFO; /* level 0x1 FF resp data */
+
+
+struct win_dev {
+	unsigned char type[8]; /* IntxCHR or IntxBLK */
+	__le64 major;
+	__le64 minor;
+} __attribute__((packed));
+
+struct gea {
+	unsigned char name_len;
+	char name[1];
+} __attribute__((packed));
+
+struct gealist {
+	unsigned long list_len;
+	struct gea list[1];
+} __attribute__((packed));
+
+struct fea {
+	unsigned char EA_flags;
+	__u8 name_len;
+	__le16 value_len;
+	char name[1];
+	/* optionally followed by value */
+} __attribute__((packed));
+/* flags for _FEA.fEA */
+#define FEA_NEEDEA         0x80	/* need EA bit */
+
+struct fealist {
+	__le32 list_len;
+	struct fea list[1];
+} __attribute__((packed));
+
+/* used to hold an arbitrary blob of data */
+struct data_blob {
+	__u8 *data;
+	size_t length;
+	void (*free) (struct data_blob *data_blob);
+} __attribute__((packed));
+
+
+#ifdef CONFIG_CIFS_POSIX
+/*
+	For better POSIX semantics from Linux client, (even better
+	than the existing CIFS Unix Extensions) we need updated PDUs for:
+
+	1) PosixCreateX - to set and return the mode, inode#, device info and
+	perhaps add a CreateDevice - to create Pipes and other special .inodes
+	Also note POSIX open flags
+	2) Close - to return the last write time to do cache across close
+		more safely
+	3) FindFirst return unique inode number - what about resume key, two
+	forms short (matches readdir) and full (enough info to cache inodes)
+	4) Mkdir - set mode
+
+	And under consideration:
+	5) FindClose2 (return nanosecond timestamp ??)
+	6) Use nanosecond timestamps throughout all time fields if
+	   corresponding attribute flag is set
+	7) sendfile - handle based copy
+
+	what about fixing 64 bit alignment
+
+	There are also various legacy SMB/CIFS requests used as is
+
+	From existing Lanman and NTLM dialects:
+	--------------------------------------
+	NEGOTIATE
+	SESSION_SETUP_ANDX (BB which?)
+	TREE_CONNECT_ANDX (BB which wct?)
+	TREE_DISCONNECT (BB add volume timestamp on response)
+	LOGOFF_ANDX
+	DELETE (note delete open file behavior)
+	DELETE_DIRECTORY
+	READ_AND_X
+	WRITE_AND_X
+	LOCKING_AND_X (note posix lock semantics)
+	RENAME (note rename across dirs and open file rename posix behaviors)
+	NT_RENAME (for hardlinks) Is this good enough for all features?
+	FIND_CLOSE2
+	TRANSACTION2 (18 cases)
+		SMB_SET_FILE_END_OF_FILE_INFO2 SMB_SET_PATH_END_OF_FILE_INFO2
+		(BB verify that never need to set allocation size)
+		SMB_SET_FILE_BASIC_INFO2 (setting times - BB can it be done via
+			 Unix ext?)
+
+	COPY (note support for copy across directories) - FUTURE, OPTIONAL
+	setting/getting OS/2 EAs - FUTURE (BB can this handle
+	setting Linux xattrs perfectly)         - OPTIONAL
+	dnotify                                 - FUTURE, OPTIONAL
+	quota                                   - FUTURE, OPTIONAL
+
+	Note that various requests implemented for NT interop such as
+		NT_TRANSACT (IOCTL) QueryReparseInfo
+	are unneeded to servers compliant with the CIFS POSIX extensions
+
+	From CIFS Unix Extensions:
+	-------------------------
+	T2 SET_PATH_INFO (SMB_SET_FILE_UNIX_LINK) for symlinks
+	T2 SET_PATH_INFO (SMB_SET_FILE_BASIC_INFO2)
+	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_LINK)
+	T2 QUERY_PATH_INFO (SMB_QUERY_FILE_UNIX_BASIC)	BB check for missing
+							inode fields
+				Actually a need QUERY_FILE_UNIX_INFO
+				since has inode num
+				BB what about a) blksize/blkbits/blocks
+							  b) i_version
+							  c) i_rdev
+							  d) notify mask?
+							  e) generation
+							  f) size_seqcount
+	T2 FIND_FIRST/FIND_NEXT FIND_FILE_UNIX
+	TRANS2_GET_DFS_REFERRAL		      - OPTIONAL but recommended
+	T2_QFS_INFO QueryDevice/AttributeInfo - OPTIONAL
+ */
+
+/* xsymlink is a symlink format (used by MacOS) that can be used
+   to save symlink info in a regular file when
+   mounted to operating systems that do not
+   support the cifs Unix extensions or EAs (for xattr
+   based symlinks).  For such a file to be recognized
+   as containing symlink data:
+
+   1) file size must be 1067,
+   2) signature must begin file data,
+   3) length field must be set to ASCII representation
+	of a number which is less than or equal to 1024,
+   4) md5 must match that of the path data */
+
+struct xsymlink {
+	/* 1067 bytes */
+	char signature[4]; /* XSym */ /* not null terminated */
+	char cr0;         /* \n */
+/* ASCII representation of length (4 bytes decimal) terminated by \n not null */
+	char length[4];
+	char cr1;         /* \n */
+/* md5 of valid subset of path ie path[0] through path[length-1] */
+	__u8 md5[32];
+	char cr2;        /* \n */
+/* if room left, then end with \n then 0x20s by convention but not required */
+	char path[1024];
+} __attribute__((packed));
+
+typedef struct file_xattr_info {
+	/* BB do we need another field for flags? BB */
+	__u32 xattr_name_len;
+	__u32 xattr_value_len;
+	char  xattr_name[0];
+	/* followed by xattr_value[xattr_value_len], no pad */
+} __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
+					      level 0x205 */
+
+
+/* flags for chattr command */
+#define EXT_SECURE_DELETE		0x00000001 /* EXT3_SECRM_FL */
+#define EXT_ENABLE_UNDELETE		0x00000002 /* EXT3_UNRM_FL */
+/* Reserved for compress file 0x4 */
+#define EXT_SYNCHRONOUS			0x00000008 /* EXT3_SYNC_FL */
+#define EXT_IMMUTABLE_FL		0x00000010 /* EXT3_IMMUTABLE_FL */
+#define EXT_OPEN_APPEND_ONLY		0x00000020 /* EXT3_APPEND_FL */
+#define EXT_DO_NOT_BACKUP		0x00000040 /* EXT3_NODUMP_FL */
+#define EXT_NO_UPDATE_ATIME		0x00000080 /* EXT3_NOATIME_FL */
+/* 0x100 through 0x800 reserved for compression flags and are GET-ONLY */
+#define EXT_HASH_TREE_INDEXED_DIR	0x00001000 /* GET-ONLY EXT3_INDEX_FL */
+/* 0x2000 reserved for IMAGIC_FL */
+#define EXT_JOURNAL_THIS_FILE	0x00004000 /* GET-ONLY EXT3_JOURNAL_DATA_FL */
+/* 0x8000 reserved for EXT3_NOTAIL_FL */
+#define EXT_SYNCHRONOUS_DIR		0x00010000 /* EXT3_DIRSYNC_FL */
+#define EXT_TOPDIR			0x00020000 /* EXT3_TOPDIR_FL */
+
+#define EXT_SET_MASK			0x000300FF
+#define EXT_GET_MASK			0x0003DFFF
+
+typedef struct file_chattr_info {
+	__le64	mask; /* list of all possible attribute bits */
+	__le64	mode; /* list of actual attribute bits on this inode */
+} __attribute__((packed)) FILE_CHATTR_INFO;  /* ext attributes
+						(chattr, chflags) level 0x206 */
+#endif 				/* POSIX */
+#endif				/* _CIFSPDU_H */