text: /*
   *   fs/cifs/cifsproto.h
   *
   *   Copyright (c) International Business Machines  Corp., 2002,2008
   *   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 _CIFSPROTO_H
  #define _CIFSPROTO_H
  #include <linux/nls.h>
  
  struct statfs;
  struct smb_vol;
  struct smb_rqst;
  
  /*
   *****************************************************************
   * All Prototypes
   *****************************************************************
   */
  
  extern struct smb_hdr *cifs_buf_get(void);
  extern void cifs_buf_release(void *);
  extern struct smb_hdr *cifs_small_buf_get(void);
  extern void cifs_small_buf_release(void *);
  extern void free_rsp_buf(int, void *);
  extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
  			unsigned int /* length */);
  extern unsigned int _get_xid(void);
  extern void _free_xid(unsigned int);
  #define get_xid()						\
  ({								\
  	unsigned int __xid = _get_xid();				\
  	cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n",	\
  		 __func__, __xid,					\
  		 from_kuid(&init_user_ns, current_fsuid()));		\
  	__xid;							\
  })
  
  #define free_xid(curr_xid)					\
  do {								\
  	_free_xid(curr_xid);					\
  	cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n",	\
  		 __func__, curr_xid, (int)rc);				\
  } while (0)
  extern int init_cifs_idmap(void);
  extern void exit_cifs_idmap(void);
  extern int init_cifs_spnego(void);
  extern void exit_cifs_spnego(void);
  extern char *build_path_from_dentry(struct dentry *);
  extern char *cifs_build_path_to_root(struct smb_vol *vol,
  				     struct cifs_sb_info *cifs_sb,
  				     struct cifs_tcon *tcon);
  extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  extern char *cifs_compose_mount_options(const char *sb_mountdata,
  		const char *fullpath, const struct dfs_info3_param *ref,
  		char **devname);
  /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  					struct TCP_Server_Info *server);
  extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  extern void cifs_delete_mid(struct mid_q_entry *mid);
  extern void cifs_wake_up_task(struct mid_q_entry *mid);
  extern int cifs_call_async(struct TCP_Server_Info *server,
  			struct smb_rqst *rqst,
  			mid_receive_t *receive, mid_callback_t *callback,
  			void *cbdata, const int flags);
  extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
  			struct smb_hdr * /* input */ ,
  			struct smb_hdr * /* out */ ,
  			int * /* bytes returned */ , const int);
  extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
  			    char *in_buf, int flags);
  extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
  				struct smb_rqst *);
  extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
  						struct smb_rqst *);
  extern int cifs_check_receive(struct mid_q_entry *mid,
  			struct TCP_Server_Info *server, bool log_error);
  extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
  				 unsigned int size, unsigned int *num,
  				 unsigned int *credits);
  extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
  			struct kvec *, int /* nvec to send */,
  			int * /* type of buf returned */ , const int flags);
  extern int SendReceiveBlockingLock(const unsigned int xid,
  			struct cifs_tcon *ptcon,
  			struct smb_hdr *in_buf ,
  			struct smb_hdr *out_buf,
  			int *bytes_returned);
  extern int cifs_reconnect(struct TCP_Server_Info *server);
  extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
  extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
  extern bool backup_cred(struct cifs_sb_info *);
  extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
  extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
  			    unsigned int bytes_written);
  extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
  extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
  extern unsigned int smbCalcSize(void *buf);
  extern int decode_negTokenInit(unsigned char *security_blob, int length,
  			struct TCP_Server_Info *server);
  extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
  extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
  extern int map_smb_to_linux_error(char *buf, bool logErr);
  extern void header_assemble(struct smb_hdr *, char /* command */ ,
  			    const struct cifs_tcon *, int /* length of
  			    fixed section (word count) in two byte units */);
  extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
  				struct cifs_ses *ses,
  				void **request_buf);
  extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
  				enum securityEnum requested);
  extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
  			  const struct nls_table *nls_cp);
  extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
  extern u64 cifs_UnixTimeToNT(struct timespec);
  extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
  				      int offset);
  extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
  extern int cifs_get_writer(struct cifsInodeInfo *cinode);
  extern void cifs_put_writer(struct cifsInodeInfo *cinode);
  extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
  extern int cifs_unlock_range(struct cifsFileInfo *cfile,
  			     struct file_lock *flock, const unsigned int xid);
  extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
  
  extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
  					      struct file *file,
  					      struct tcon_link *tlink,
  					      __u32 oplock);
  extern int cifs_posix_open(char *full_path, struct inode **inode,
  			   struct super_block *sb, int mode,
  			   unsigned int f_flags, __u32 *oplock, __u16 *netfid,
  			   unsigned int xid);
  void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
  extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
  				     FILE_UNIX_BASIC_INFO *info,
  				     struct cifs_sb_info *cifs_sb);
  extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
  					struct cifs_sb_info *);
  extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
  extern struct inode *cifs_iget(struct super_block *sb,
  			       struct cifs_fattr *fattr);
  
  extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
  			       FILE_ALL_INFO *data, struct super_block *sb,
  			       int xid, const struct cifs_fid *fid);
  extern int cifs_get_inode_info_unix(struct inode **pinode,
  			const unsigned char *search_path,
  			struct super_block *sb, unsigned int xid);
  extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
  			      unsigned int xid, char *full_path, __u32 dosattr);
  extern int cifs_rename_pending_delete(const char *full_path,
  				      struct dentry *dentry,
  				      const unsigned int xid);
  extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
  			      struct cifs_fattr *fattr, struct inode *inode,
  			      const char *path, const struct cifs_fid *pfid);
  extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
  					kuid_t, kgid_t);
  extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
  					const char *, u32 *);
  extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
  						const struct cifs_fid *, u32 *);
  extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
  				const char *, int);
  
  extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
  extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
  			         unsigned int to_read);
  extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
  				      struct page *page, unsigned int to_read);
  extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
  			       struct cifs_sb_info *cifs_sb);
  extern int cifs_match_super(struct super_block *, void *);
  extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
  extern struct smb_vol *cifs_get_volume_info(char *mount_data,
  					    const char *devname);
  extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
  extern void cifs_umount(struct cifs_sb_info *);
  extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
  extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
  
  extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
  				    __u64 length, __u8 type,
  				    struct cifsLockInfo **conf_lock,
  				    int rw_check);
  extern void cifs_add_pending_open(struct cifs_fid *fid,
  				  struct tcon_link *tlink,
  				  struct cifs_pending_open *open);
  extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
  					 struct tcon_link *tlink,
  					 struct cifs_pending_open *open);
  extern void cifs_del_pending_open(struct cifs_pending_open *open);
  extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
  				 int from_reconnect);
  extern void cifs_put_tcon(struct cifs_tcon *tcon);
  
  #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
  extern void cifs_dfs_release_automount_timer(void);
  #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
  #define cifs_dfs_release_automount_timer()	do { } while (0)
  #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
  
  void cifs_proc_init(void);
  void cifs_proc_clean(void);
  
  extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
  extern void cifs_free_llist(struct list_head *llist);
  extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
  
  extern int cifs_negotiate_protocol(const unsigned int xid,
  				   struct cifs_ses *ses);
  extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
  			      struct nls_table *nls_info);
  extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
  extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
  
  extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
  		    const char *tree, struct cifs_tcon *tcon,
  		    const struct nls_table *);
  
  extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
  		const char *searchName, struct cifs_sb_info *cifs_sb,
  		__u16 *searchHandle, __u16 search_flags,
  		struct cifs_search_info *psrch_inf,
  		bool msearch);
  
  extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
  		__u16 searchHandle, __u16 search_flags,
  		struct cifs_search_info *psrch_inf);
  
  extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
  			const __u16 search_handle);
  
  extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			u16 netfid, FILE_ALL_INFO *pFindData);
  extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			    const char *search_Name, FILE_ALL_INFO *data,
  			    int legacy /* whether to use old info level */,
  			    const struct nls_table *nls_codepage, int remap);
  extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
  			       const char *search_name, FILE_ALL_INFO *data,
  			       const struct nls_table *nls_codepage, int remap);
  
  extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
  extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
  			struct cifs_tcon *tcon,
  			const unsigned char *searchName,
  			FILE_UNIX_BASIC_INFO *pFindData,
  			const struct nls_table *nls_codepage, int remap);
  
  extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
  			   const char *search_name,
  			   struct dfs_info3_param **target_nodes,
  			   unsigned int *num_of_nodes,
  			   const struct nls_table *nls_codepage, int remap);
  
  extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
  			const char *old_path,
  			const struct nls_table *nls_codepage,
  			unsigned int *num_referrals,
  			struct dfs_info3_param **referrals, int remap);
  extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
  				 struct cifs_sb_info *cifs_sb,
  				 struct smb_vol *vol);
  extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			struct kstatfs *FSData);
  extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			struct kstatfs *FSData);
  extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			__u64 cap);
  
  extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
  			struct cifs_tcon *tcon);
  extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
  extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
  extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			struct kstatfs *FSData);
  
  extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			const char *fileName, const FILE_BASIC_INFO *data,
  			const struct nls_table *nls_codepage,
  			int remap_special_chars);
  extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
  			const FILE_BASIC_INFO *data, __u16 fid,
  			__u32 pid_of_opener);
  extern int CIFSSMBSetFileDisposition(const unsigned int xid,
  				     struct cifs_tcon *tcon,
  				     bool delete_file, __u16 fid,
  				     __u32 pid_of_opener);
  #if 0
  extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
  			char *fileName, __u16 dos_attributes,
  			const struct nls_table *nls_codepage);
  #endif /* possibly unneeded function */
  extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
  			 const char *file_name, __u64 size,
  			 struct cifs_sb_info *cifs_sb, bool set_allocation);
  extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
  			      struct cifsFileInfo *cfile, __u64 size,
  			      bool set_allocation);
  
  struct cifs_unix_set_info_args {
  	__u64	ctime;
  	__u64	atime;
  	__u64	mtime;
  	__u64	mode;
  	kuid_t	uid;
  	kgid_t	gid;
  	dev_t	device;
  };
  
  extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
  				  struct cifs_tcon *tcon,
  				  const struct cifs_unix_set_info_args *args,
  				  u16 fid, u32 pid_of_opener);
  
  extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
  				  struct cifs_tcon *tcon, const char *file_name,
  				  const struct cifs_unix_set_info_args *args,
  				  const struct nls_table *nls_codepage,
  				  int remap);
  
  extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
  			const char *name, struct cifs_sb_info *cifs_sb);
  extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
  			const char *name, struct cifs_sb_info *cifs_sb);
  extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
  			const char *name, __u16 type,
  			const struct nls_table *nls_codepage,
  			int remap_special_chars);
  extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
  			  const char *name, struct cifs_sb_info *cifs_sb);
  extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
  			 const char *from_name, const char *to_name,
  			 struct cifs_sb_info *cifs_sb);
  extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
  				 int netfid, const char *target_name,
  				 const struct nls_table *nls_codepage,
  				 int remap_special_chars);
  extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
  			      const char *from_name, const char *to_name,
  			      struct cifs_sb_info *cifs_sb);
  extern int CIFSUnixCreateHardLink(const unsigned int xid,
  			struct cifs_tcon *tcon,
  			const char *fromName, const char *toName,
  			const struct nls_table *nls_codepage,
  			int remap_special_chars);
  extern int CIFSUnixCreateSymLink(const unsigned int xid,
  			struct cifs_tcon *tcon,
  			const char *fromName, const char *toName,
  			const struct nls_table *nls_codepage, int remap);
  extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
  			struct cifs_tcon *tcon,
  			const unsigned char *searchName, char **syminfo,
  			const struct nls_table *nls_codepage, int remap);
  extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
  			       __u16 fid, char **symlinkinfo,
  			       const struct nls_table *nls_codepage);
  extern int CIFSSMB_set_compression(const unsigned int xid,
  				   struct cifs_tcon *tcon, __u16 fid);
  extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
  		     int *oplock, FILE_ALL_INFO *buf);
  extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
  			const char *fileName, const int disposition,
  			const int access_flags, const int omode,
  			__u16 *netfid, int *pOplock, FILE_ALL_INFO *,
  			const struct nls_table *nls_codepage, int remap);
  extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
  			u32 posix_flags, __u64 mode, __u16 *netfid,
  			FILE_UNIX_BASIC_INFO *pRetData,
  			__u32 *pOplock, const char *name,
  			const struct nls_table *nls_codepage, int remap);
  extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
  			const int smb_file_id);
  
  extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
  			const int smb_file_id);
  
  extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
  			unsigned int *nbytes, char **buf,
  			int *return_buf_type);
  extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
  			unsigned int *nbytes, const char *buf);
  extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
  			unsigned int *nbytes, struct kvec *iov, const int nvec);
  extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
  				 const char *search_name, __u64 *inode_number,
  				 const struct nls_table *nls_codepage,
  				 int remap);
  
  extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
  		      const __u16 netfid, const __u8 lock_type,
  		      const __u32 num_unlock, const __u32 num_lock,
  		      LOCKING_ANDX_RANGE *buf);
  extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
  			const __u16 netfid, const __u32 netpid, const __u64 len,
  			const __u64 offset, const __u32 numUnlock,
  			const __u32 numLock, const __u8 lockType,
  			const bool waitFlag, const __u8 oplock_level);
  extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
  			const __u16 smb_file_id, const __u32 netpid,
  			const loff_t start_offset, const __u64 len,
  			struct file_lock *, const __u16 lock_type,
  			const bool waitFlag);
  extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
  extern int CIFSSMBEcho(struct TCP_Server_Info *server);
  extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
  
  extern struct cifs_ses *sesInfoAlloc(void);
  extern void sesInfoFree(struct cifs_ses *);
  extern struct cifs_tcon *tconInfoAlloc(void);
  extern void tconInfoFree(struct cifs_tcon *);
  
  extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
  		   __u32 *pexpected_response_sequence_number);
  extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
  			  __u32 *);
  extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
  extern int cifs_verify_signature(struct smb_rqst *rqst,
  				 struct TCP_Server_Info *server,
  				__u32 expected_sequence_number);
  extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
  			const struct nls_table *);
  extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
  extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
  extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
  extern int calc_seckey(struct cifs_ses *);
  extern int generate_smb30signingkey(struct cifs_ses *);
  extern int generate_smb311signingkey(struct cifs_ses *);
  
  #ifdef CONFIG_CIFS_WEAK_PW_HASH
  extern int calc_lanman_hash(const char *password, const char *cryptkey,
  				bool encrypt, char *lnm_session_key);
  #endif /* CIFS_WEAK_PW_HASH */
  #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
  extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
  			const int notify_subdirs, const __u16 netfid,
  			__u32 filter, struct file *file, int multishot,
  			const struct nls_table *nls_codepage);
  #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
  extern int CIFSSMBCopy(unsigned int xid,
  			struct cifs_tcon *source_tcon,
  			const char *fromName,
  			const __u16 target_tid,
  			const char *toName, const int flags,
  			const struct nls_table *nls_codepage,
  			int remap_special_chars);
  extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
  			const unsigned char *searchName,
  			const unsigned char *ea_name, char *EAData,
  			size_t bufsize, const struct nls_table *nls_codepage,
  			int remap_special_chars);
  extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
  		const char *fileName, const char *ea_name,
  		const void *ea_value, const __u16 ea_value_len,
  		const struct nls_table *nls_codepage, int remap_special_chars);
  extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
  			__u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
  extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
  			struct cifs_ntsd *, __u32, int);
  extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
  		const unsigned char *searchName,
  		char *acl_inf, const int buflen, const int acl_type,
  		const struct nls_table *nls_codepage, int remap_special_chars);
  extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
  		const unsigned char *fileName,
  		const char *local_acl, const int buflen, const int acl_type,
  		const struct nls_table *nls_codepage, int remap_special_chars);
  extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
  			const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
  extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
  extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
  extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
  			      struct cifs_sb_info *cifs_sb,
  			      struct cifs_fattr *fattr,
  			      const unsigned char *path);
  extern int mdfour(unsigned char *, unsigned char *, int);
  extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
  			const struct nls_table *codepage);
  extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
  			unsigned char *p24);
  
  void cifs_readdata_release(struct kref *refcount);
  int cifs_async_readv(struct cifs_readdata *rdata);
  int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
  
  int cifs_async_writev(struct cifs_writedata *wdata,
  		      void (*release)(struct kref *kref));
  void cifs_writev_complete(struct work_struct *work);
  struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
  						work_func_t complete);
  void cifs_writedata_release(struct kref *refcount);
  int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
  			  struct cifs_sb_info *cifs_sb,
  			  const unsigned char *path, char *pbuf,
  			  unsigned int *pbytes_read);
  int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
  			   struct cifs_sb_info *cifs_sb,
  			   const unsigned char *path, char *pbuf,
  			   unsigned int *pbytes_written);
  int __cifs_calc_signature(struct smb_rqst *rqst,
  			struct TCP_Server_Info *server, char *signature,
  			struct shash_desc *shash);
  #endif			/* _CIFSPROTO_H */
  