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Diffstat (limited to 'fs/cifs/cifspdu.h')
| -rw-r--r-- | fs/cifs/cifspdu.h | 1987 |
1 files changed, 1987 insertions, 0 deletions
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h new file mode 100644 index 000000000000..bcd4a6136f08 --- /dev/null +++ b/fs/cifs/cifspdu.h @@ -0,0 +1,1987 @@ +/* + * fs/cifs/cifspdu.h + * + * Copyright (c) International Business Machines Corp., 2002 + * 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> + +#define CIFS_PROT 0 +#define BAD_PROT CIFS_PROT+1 + +/* SMB command codes */ +/* Some commands have minimal (wct=0,bcc=0), or uninteresting, responses + (ie which include no useful data other than the SMB error code itself). + Knowing this helps 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_DELETE 0x06 /* trivial response */ +#define SMB_COM_RENAME 0x07 /* trivial response */ +#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_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_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_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 + +/* 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_HDR_SIZE 256 /* chained NTCreateXReadX will probably be biggest */ + +/* 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 session key (crypto key encrypted with the password + */ +#define CIFS_SESSION_KEY_SIZE (24) + +/* + * 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 primitives */ +#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 requested) */ +#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_IS_LONG_NAME cpu_to_le16(0x40) +#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. */ + +/* + * Invalid readdir handle + */ +#define CIFS_NO_HANDLE 0xFFFF + +/* 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 - 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 */ +#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_NOT_DIR 0x00000040 /* if set must not be directory */ +#define CREATE_RANDOM_ACCESS 0x00000800 +#define CREATE_DELETE_ON_CLOSE 0x00001000 +#define OPEN_REPARSE_POINT 0x00200000 + +/* 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 */ + +#pragma pack(1) + +struct smb_hdr { + __u32 smb_buf_length; /* big endian on wire *//* BB length is only two or three bytes - with one or two byte type preceding it but that is always zero - we could mask the type byte off just in case BB */ + __u8 Protocol[4]; + __u8 Command; + union { + struct { + __u8 ErrorClass; + __u8 Reserved; + __le16 Error; + } DosError; + __le32 CifsError; + } Status; + __u8 Flags; + __le16 Flags2; /* note: le */ + __le16 PidHigh; + union { + struct { + __le32 SequenceNumber; /* le */ + __u32 Reserved; /* zero */ + } Sequence; + __u8 SecuritySignature[8]; /* le */ + } Signature; + __u8 pad[2]; + __u16 Tid; + __le16 Pid; + __u16 Uid; + __u16 Mid; + __u8 WordCount; +}; +/* given a pointer to an smb_hdr retrieve the value of byte count */ +#define BCC(smb_var) ( *(__u16 *)((char *)smb_var + sizeof(struct smb_hdr) + (2* smb_var->WordCount) ) ) + +/* given a pointer to an smb_hdr retrieve the pointer to the byte area */ +#define pByteArea(smb_var) ((unsigned char *)smb_var + sizeof(struct smb_hdr) + (2* smb_var->WordCount) + 2 ) + +/* + * Computer Name Length + */ +#define CNLEN 15 + +/* + * Share Name Length @S8A + * Note: This length is limited by the SMB used to get @S8A + * the Share info. NetShareEnum only returns 13 @S8A + * chars, including the null termination. @S8A + */ +#define SNLEN 12 /*@S8A */ + +/* + * 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]; +} NEGOTIATE_REQ; + +typedef struct negotiate_rsp { + struct smb_hdr hdr; /* wct = 17 */ + __le16 DialectIndex; + __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]; /* if cap extended security is off */ + /* followed by Domain name - if extended security is off */ + /* followed by 16 bytes of server GUID */ + /* followed by security blob if cap_extended_security negotiated */ + struct { + unsigned char GUID[16]; + unsigned char SecurityBlob[1]; + } extended_response; + } u; +} 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_UNIX 0x00800000 +#define CAP_RESERVED 0x02000000 +#define CAP_BULK_TRANSFER 0x20000000 +#define CAP_COMPRESSED_DATA 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 */ + } 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 length */ + __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 */ + } 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; */ + } resp; /* NTLM response format (with or without extended security */ + + struct { /* request format */ + struct smb_hdr hdr; /* wct = 10 */ + __u8 AndXCommand; + __u8 AndXReserved; + __le16 AndXOffset; + __le16 MaxBufferSize; + __le16 MaxMpxCount; + __le16 VcNumber; + __u32 SessionKey; + __le16 PassswordLength; + __u32 Reserved; + __le16 ByteCount; + unsigned char AccountPassword[1]; /* followed by */ + /* STRING AccountName */ + /* STRING PrimaryDomain */ + /* STRING NativeOS */ + /* STRING NativeLanMan */ + } old_req; /* pre-NTLM (LANMAN2.1) request 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; */ + } old_resp; /* pre-NTLM (LANMAN2.1) response format */ +} SESSION_SETUP_ANDX; + +#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 (presumably 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 */ +} TCONX_REQ; + +typedef struct smb_com_tconx_rsp { + struct smb_hdr hdr; /* wct = 3 *//* note that Win2000 has sent wct=7 in some cases on responses. Four unspecified words followed OptionalSupport */ + __u8 AndXCommand; + __u8 AndXReserved; + __le16 AndXOffset; + __le16 OptionalSupport; /* see below */ + __u16 ByteCount; + unsigned char Service[1]; /* always ASCII, not Unicode */ + /* STRING NativeFileSystem */ +} TCONX_RSP; + +/* tree connect Flags */ +#define DISCONNECT_TID 0x0001 +#define TCON_EXTENDED_SECINFO 0x0008 +/* OptionalSupport bits */ +#define SMB_SUPPORT_SEARCH_BITS 0x0001 /* must have bits (exclusive searches suppt. */ +#define SMB_SHARE_IS_IN_DFS 0x0002 + +typedef struct smb_com_logoff_andx_req { + struct smb_hdr hdr; /* wct = 2 */ + __u8 AndXCommand; + __u8 AndXReserved; + __u16 AndXOffset; + __u16 ByteCount; +} LOGOFF_ANDX_REQ; + +typedef struct smb_com_logoff_andx_rsp { + struct smb_hdr hdr; /* wct = 2 */ + __u8 AndXCommand; + __u8 AndXReserved; + __u16 AndXOffset; + __u16 ByteCount; +} LOGOFF_ANDX_RSP; + +typedef union smb_com_tree_disconnect { /* as an altetnative can use flag on tree_connect PDU to effect disconnect *//* probably the simplest SMB PDU */ + struct { + struct smb_hdr hdr; /* wct = 0 */ + __u16 ByteCount; /* bcc = 0 */ + } req; + struct { + struct smb_hdr hdr; /* wct = 0 */ + __u16 ByteCount; /* bcc = 0 */ + } resp; +} TREE_DISCONNECT; + +typedef struct smb_com_close_req { + struct smb_hdr hdr; /* wct = 3 */ + __u16 FileID; + __u32 LastWriteTime; /* should be zero */ + __u16 ByteCount; /* 0 */ +} CLOSE_REQ; + +typedef struct smb_com_close_rsp { + struct smb_hdr hdr; /* wct = 0 */ + __u16 ByteCount; /* bct = 0 */ +} CLOSE_RSP; + +typedef struct smb_com_findclose_req { + struct smb_hdr hdr; /* wct = 1 */ + __u16 FileID; + __u16 ByteCount; /* 0 */ +} FINDCLOSE_REQ; + +/* OpenFlags */ +#define REQ_OPLOCK 0x00000002 +#define REQ_BATCHOPLOCK 0x00000004 +#define REQ_OPENDIRONLY 0x00000008 + +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; + __le32 RootDirectoryFid; + __le32 DesiredAccess; + __le64 AllocationSize; + __le32 FileAttributes; + __le32 ShareAccess; + __le32 CreateDisposition; + __le32 CreateOptions; + __le32 ImpersonationLevel; + __u8 SecurityFlags; + __le16 ByteCount; + char fileName[1]; +} 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 */ +} OPEN_RSP; + +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]; +} 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; +} WRITE_RSP; + +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; +} 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; + __u8 Pad; /* BB check for whether padded to DWORD boundary and optimum performance here */ + char Data[1]; +} READ_RSP; + +typedef struct locking_andx_range { + __le16 Pid; + __le16 Pad; + __le32 OffsetHigh; + __le32 OffsetLow; + __le32 LengthHigh; + __le32 LengthLow; +} 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]; +} LOCK_REQ; + +typedef struct smb_com_lock_rsp { + struct smb_hdr hdr; /* wct = 2 */ + __u8 AndXCommand; + __u8 AndXReserved; + __le16 AndXOffset; + __u16 ByteCount; +} 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 */ +} 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 */ +} 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 */ +} 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 */ +} NT_RENAME_REQ; + +typedef struct smb_com_rename_rsp { + struct smb_hdr hdr; /* wct = 0 */ + __u16 ByteCount; /* bct = 0 */ +} 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]; +} DELETE_FILE_REQ; + +typedef struct smb_com_delete_file_rsp { + struct smb_hdr hdr; /* wct = 0 */ + __u16 ByteCount; /* bct = 0 */ +} 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]; +} DELETE_DIRECTORY_REQ; + +typedef struct smb_com_delete_directory_rsp { + struct smb_hdr hdr; /* wct = 0 */ + __u16 ByteCount; /* bct = 0 */ +} 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]; +} CREATE_DIRECTORY_REQ; + +typedef struct smb_com_create_directory_rsp { + struct smb_hdr hdr; /* wct = 0 */ + __u16 ByteCount; /* bct = 0 */ +} CREATE_DIRECTORY_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]; +} SETATTR_REQ; + +typedef struct smb_com_setattr_rsp { + struct smb_hdr hdr; /* wct = 0 */ + __u16 ByteCount; /* bct = 0 */ +} SETATTR_RSP; + +/* empty wct response to setattr */ + +/***************************************************/ +/* NT Transact structure defintions follow */ +/* Currently only ioctl and notify are implemented */ +/***************************************************/ +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 share)*/ + __le16 ByteCount; + __u8 Pad[3]; + __u8 Data[1]; +} 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; + __u8 Pad[3]; +} TRANSACT_IOCTL_RSP; + +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];*/ +} TRANSACT_CHANGE_NOTIFY_REQ; + +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]; */ +} 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]; +}; + +struct reparse_data { + __u32 ReparseTag; + __u16 ReparseDataLength; + __u16 Reserved; + __u16 AltNameOffset; + __u16 AltNameLen; + __u16 TargetNameOffset; + __u16 TargetNameLen; + char LinkNamesBuf[1]; +}; + +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? */ +}; + +/* 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; +}; + +struct smb_t2_req { + struct smb_hdr hdr; + struct trans2_req t2_req; +}; + +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 */ +}; + +struct smb_t2_rsp { + struct smb_hdr hdr; + struct trans2_resp t2_rsp; +}; + +/* 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 +#define SMB_QUERY_ATTR_FLAGS 0x206 /* append,immutable etc. */ +#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_FILE_BASIC_INFO2 0x3ec +#define SMB_SET_FILE_RENAME_INFORMATION 0x3f2 /* BB check if qpathinfo level 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_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]; +} 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 reserved - present for infolevels > 100 */ +} 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]; +} 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 reserved - present for infolevels > 100 */ +} 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 */ +}; + +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; +}; + +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 */ +}; + + +/* + * 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]; +} TRANSACTION2_FFIRST_REQ; + +typedef struct smb_com_transaction2_ffirst_rsp { + struct smb_hdr hdr; /* wct = 10 */ + struct trans2_resp t2; + __u16 ByteCount; +} TRANSACTION2_FFIRST_RSP; + +typedef struct smb_com_transaction2_ffirst_rsp_parms { + __u16 SearchHandle; + __le16 SearchCount; + __le16 EndofSearch; + __le16 EAErrorOffset; + __le16 LastNameOffset; +} 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]; +} TRANSACTION2_FNEXT_REQ; + +typedef struct smb_com_transaction2_fnext_rsp { + struct smb_hdr hdr; /* wct = 10 */ + struct trans2_resp t2; + __u16 ByteCount; +} TRANSACTION2_FNEXT_RSP; + +typedef struct smb_com_transaction2_fnext_rsp_parms { + __le16 SearchCount; + __le16 EndofSearch; + __le16 EAErrorOffset; + __le16 LastNameOffset; +} 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_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; +} 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 */ +} TRANSACTION2_QFSI_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 resp length perhaps?) followed by one byte pad - doesn't seem to matter though */ + __le16 MaxReferralLevel; + char RequestFileName[1]; +} TRANSACTION2_GET_DFS_REFER_REQ; + +typedef struct dfs_referral_level_3 { + __le16 VersionNumber; + __le16 ReferralSize; + __le16 ServerType; /* 0x0001 = CIFS server */ + __le16 ReferralFlags; /* or proximity - not clear which since always set to zero - SNIA spec says 0x01 means strip off PathConsumed chars before submitting RequestFileName to remote node */ + __le16 TimeToLive; + __le16 Proximity; + __le16 DfsPathOffset; + __le16 DfsAlternatePathOffset; + __le16 NetworkAddressOffset; +} 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; + __le16 DFSFlags; + __u16 Pad2; + REFERRAL3 referrals[1]; /* array of level 3 dfs_referral structures */ + /* followed by the strings pointed to by the referral structures */ +} TRANSACTION2_GET_DFS_REFER_RSP; + +/* DFS Flags */ +#define DFSREF_REFERRAL_SERVER 0x0001 +#define DFSREF_STORAGE_SERVER 0x0002 + +/* IOCTL information */ +/* List of ioctl function codes that look to be of interest to remote clients like this. */ +/* Need to do some experimentation to make sure they all work remotely. */ +/* Some of the following such as the encryption/compression ones would be */ +/* invoked from tools via a specialized hook into the VFS rather than via the */ +/* standard vfs entry points */ +#define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000 +#define FSCTL_REQUEST_OPLOCK_LEVEL_2 0x00090004 +#define FSCTL_REQUEST_BATCH_OPLOCK 0x00090008 +#define FSCTL_LOCK_VOLUME 0x00090018 +#define FSCTL_UNLOCK_VOLUME 0x0009001C +#define FSCTL_GET_COMPRESSION 0x0009003C +#define FSCTL_SET_COMPRESSION 0x0009C040 +#define FSCTL_REQUEST_FILTER_OPLOCK 0x0009008C +#define FSCTL_FILESYS_GET_STATISTICS 0x00090090 +#define FSCTL_SET_REPARSE_POINT 0x000900A4 +#define FSCTL_GET_REPARSE_POINT 0x000900A8 +#define FSCTL_DELETE_REPARSE_POINT 0x000900AC +#define FSCTL_SET_SPARSE 0x000900C4 +#define FSCTL_SET_ZERO_DATA 0x000900C8 +#define FSCTL_SET_ENCRYPTION 0x000900D7 +#define FSCTL_ENCRYPTION_FSCTL_IO 0x000900DB +#define FSCTL_WRITE_RAW_ENCRYPTED 0x000900DF +#define FSCTL_READ_RAW_ENCRYPTED 0x000900E3 +#define FSCTL_SIS_COPYFILE 0x00090100 +#define FSCTL_SIS_LINK_FILES 0x0009C104 + +#define IO_REPARSE_TAG_MOUNT_POINT 0xA0000003 +#define IO_REPARSE_TAG_HSM 0xC0000004 +#define IO_REPARSE_TAG_SIS 0x80000007 + +/* + ************************************************************************ + * 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; +}; + +/* + * 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; +}; + +struct aliasInfo { + char aliasName[9]; + char pad; + unsigned int commentOffset; + unsigned char type[2]; +}; + +struct aliasInfo92 { + int aliasNameOffset; + int serverNameOffset; + int shareNameOffset; +}; + +typedef struct { + __le64 TotalAllocationUnits; + __le64 FreeAllocationUnits; + __le32 SectorsPerAllocationUnit; + __le32 BytesPerSector; +} FILE_SYSTEM_INFO; /* size info, level 0x103 */ + +typedef struct { + __le16 MajorVersionNumber; + __le16 MinorVersionNumber; + __le64 Capability; +} FILE_SYSTEM_UNIX_INFO; /* Unix extensions info, level 0x200 */ +/* Linux/Unix extensions capability flags */ +#define CIFS_UNIX_FCNTL_CAP 0x00000001 /* support for fcntl locks */ +#define CIFS_UNIX_POSIX_ACL_CAP 0x00000002 +#define CIFS_UNIX_XATTR_CAP 0x00000004 /*support for new namespace*/ + +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 */ +} 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; +} FILE_SYSTEM_DEVICE_INFO; /* device info, level 0x104 */ + +typedef struct { + __le32 Attributes; + __le32 MaxPathNameComponentLength; + __le32 FileSystemNameLen; + char FileSystemName[52]; /* do not really need to save this - so potentially get only subset of name */ +} 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]; +} 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; + __u64 UniqueId; + __le64 Permissions; + __le64 Nlinks; +} FILE_UNIX_BASIC_INFO; /* level 0x200 QPathInfo */ + +typedef struct { + char LinkDest[1]; +} 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; +} SMB_DATE; + +typedef struct { + __u16 TwoSeconds:5; + __u16 Minutes:6; + __u16 Hours:5; +} 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; +} FILE_INFO_STANDARD; /* level 1 SetPath/FileInfo */ + +typedef struct { + __le64 CreationTime; + __le64 LastAccessTime; + __le64 LastWriteTime; + __le64 ChangeTime; + __le32 Attributes; + __u32 Pad; +} FILE_BASIC_INFO; /* size info, level 0x101 */ + +struct file_allocation_info { + __le64 AllocationSize; /* Note old Samba srvr rounds this up too much */ +}; /* size used on disk, level 0x103 for set, 0x105 for query */ + +struct file_end_of_file_info { + __le64 FileSize; /* offset to end of file */ +}; /* size info, level 0x104 for set, 0x106 for query */ + +struct file_alt_name_info { + __u8 alt_name[1]; +}; /* 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]; +}; /* 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 */ +}; + +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[] */ +}; /* 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 */ + +struct file_internal_info { + __u64 UniqueId; /* inode number */ +}; /* level 0x3ee */ +struct file_mode_info { + __le32 Mode; +}; /* level 0x3f8 */ + +struct file_attrib_tag { + __le32 Attribute; + __le32 ReparseTag; +}; /* level 0x40b */ + + +/********************************************************/ +/* FindFirst/FindNext transact2 data buffer formats */ +/********************************************************/ + +typedef struct { + __le32 NextEntryOffset; + __u32 ResumeKey; /* as with FileIndex - no need to convert */ + __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; + __u64 UniqueId; + __le64 Permissions; + __le64 Nlinks; + char FileName[1]; +} 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]; +} FILE_DIRECTORY_INFO; /* level 0x101 FF response data area */ + +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]; +} FILE_FULL_DIRECTORY_INFO; /* level 0x102 FF response data area */ + +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; + __u64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit*/ + char FileName[1]; +} SEARCH_ID_FULL_DIR_INFO; /* level 0x105 FF response data area */ + +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]; +} FILE_BOTH_DIRECTORY_INFO; /* level 0x104 FF response data area */ + + +struct gea { + unsigned char name_len; + char name[1]; +}; + +struct gealist { + unsigned long list_len; + struct gea list[1]; +}; + +struct fea { + unsigned char EA_flags; + __u8 name_len; + __le16 value_len; + char name[1]; + /* optionally followed by value */ +}; +/* flags for _FEA.fEA */ +#define FEA_NEEDEA 0x80 /* need EA bit */ + +struct fealist { + __le32 list_len; + struct fea list[1]; +}; + +/* used to hold an arbitrary blob of data */ +struct data_blob { + __u8 *data; + size_t length; + void (*free) (struct data_blob * data_blob); +}; + + +#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) PosixQFSInfo - to return statfs info + 4) FindFirst return unique inode number - what about resume key, two forms short (matches readdir) and full (enough info to cache inodes) + 5) Mkdir - set mode + + And under consideration: + 6) FindClose2 (return nanosecond timestamp ??) + 7) Use nanosecond timestamps throughout all time fields if + corresponding attribute flag is set + 8) sendfile - handle based copy + 9) Direct i/o + 10) "POSIX ACL" support + 11) Misc fcntls? + + 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 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 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]; +}; + +typedef struct { + /* 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 */ +} FILE_XATTR_INFO; /* extended attribute, info level 205 */ + + +#endif + +#pragma pack() /* resume default structure packing */ + +#endif /* _CIFSPDU_H */ |