fs/cifs/cifsproto.h

   1 /*
   2  *   fs/cifs/cifsproto.h
   3  *
   4  *   Copyright (c) International Business Machines  Corp., 2002,2008
   5  *   Author(s): Steve French (sfrench@us.ibm.com)
   6  *
   7  *   This library is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU Lesser General Public License as published
   9  *   by the Free Software Foundation; either version 2.1 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This library is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  15  *   the GNU Lesser General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU Lesser General Public License
  18  *   along with this library; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20  */
  21 #ifndef _CIFSPROTO_H
  22 #define _CIFSPROTO_H
  23 #include <linux/nls.h>
  24
  25 struct statfs;
  26 struct smb_vol;
  27
  28 /*
  29  *****************************************************************
  30  * All Prototypes
  31  *****************************************************************
  32  */
  33
  34 extern struct smb_hdr *cifs_buf_get(void);
  35 extern void cifs_buf_release(void *);
  36 extern struct smb_hdr *cifs_small_buf_get(void);
  37 extern void cifs_small_buf_release(void *);
  38 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
  39                         unsigned int /* length */);
  40 extern unsigned int _get_xid(void);
  41 extern void _free_xid(unsigned int);
  42 #define get_xid()                                               \
  43 ({                                                              \
  44         unsigned int __xid = _get_xid();                                \
  45         cFYI(1, "CIFS VFS: in %s as Xid: %u with uid: %d",      \
  46              __func__, __xid, current_fsuid());                 \
  47         __xid;                                                  \
  48 })
  49
  50 #define free_xid(curr_xid)                                      \
  51 do {                                                            \
  52         _free_xid(curr_xid);                                    \
  53         cFYI(1, "CIFS VFS: leaving %s (xid = %u) rc = %d",      \
  54              __func__, curr_xid, (int)rc);                      \
  55 } while (0)
  56 extern int init_cifs_idmap(void);
  57 extern void exit_cifs_idmap(void);
  58 extern void cifs_destroy_idmaptrees(void);
  59 extern char *build_path_from_dentry(struct dentry *);
  60 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  61 extern char *cifs_compose_mount_options(const char *sb_mountdata,
  62                 const char *fullpath, const struct dfs_info3_param *ref,
  63                 char **devname);
  64 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  65 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  66                                         struct TCP_Server_Info *server);
  67 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  68 extern void cifs_wake_up_task(struct mid_q_entry *mid);
  69 extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
  70                            unsigned int nvec, mid_receive_t *receive,
  71                            mid_callback_t *callback, void *cbdata,
  72                            const int flags);
  73 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
  74                         struct smb_hdr * /* input */ ,
  75                         struct smb_hdr * /* out */ ,
  76                         int * /* bytes returned */ , const int);
  77 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
  78                             char *in_buf, int flags);
  79 extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
  80                               struct mid_q_entry **);
  81 extern int cifs_setup_async_request(struct TCP_Server_Info *, struct kvec *,
  82                                     unsigned int, struct mid_q_entry **);
  83 extern int cifs_check_receive(struct mid_q_entry *mid,
  84                         struct TCP_Server_Info *server, bool log_error);
  85 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
  86                         struct kvec *, int /* nvec to send */,
  87                         int * /* type of buf returned */ , const int flags);
  88 extern int SendReceiveBlockingLock(const unsigned int xid,
  89                         struct cifs_tcon *ptcon,
  90                         struct smb_hdr *in_buf ,
  91                         struct smb_hdr *out_buf,
  92                         int *bytes_returned);
  93 extern int cifs_reconnect(struct TCP_Server_Info *server);
  94 extern int checkSMB(char *buf, unsigned int length);
  95 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
  96 extern bool backup_cred(struct cifs_sb_info *);
  97 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
  98 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
  99                             unsigned int bytes_written);
 100 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
 101 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
 102 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
 103 extern int decode_negTokenInit(unsigned char *security_blob, int length,
 104                         struct TCP_Server_Info *server);
 105 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
 106 extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 107 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
 108                                 const unsigned short int port);
 109 extern int map_smb_to_linux_error(char *buf, bool logErr);
 110 extern void header_assemble(struct smb_hdr *, char /* command */ ,
 111                             const struct cifs_tcon *, int /* length of
 112                             fixed section (word count) in two byte units */);
 113 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 114                                 struct cifs_ses *ses,
 115                                 void **request_buf);
 116 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 117                           const struct nls_table *nls_cp);
 118 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 119 extern u64 cifs_UnixTimeToNT(struct timespec);
 120 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
 121                                       int offset);
 122 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 123
 124 extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
 125                                 struct file *file, struct tcon_link *tlink,
 126                                 __u32 oplock);
 127 extern int cifs_posix_open(char *full_path, struct inode **inode,
 128                            struct super_block *sb, int mode,
 129                            unsigned int f_flags, __u32 *oplock, __u16 *netfid,
 130                            unsigned int xid);
 131 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 132 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 133                                      FILE_UNIX_BASIC_INFO *info,
 134                                      struct cifs_sb_info *cifs_sb);
 135 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 136 extern struct inode *cifs_iget(struct super_block *sb,
 137                                struct cifs_fattr *fattr);
 138
 139 extern int cifs_get_file_info(struct file *filp);
 140 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
 141                                FILE_ALL_INFO *data, struct super_block *sb,
 142                                int xid, const __u16 *fid);
 143 extern int cifs_get_file_info_unix(struct file *filp);
 144 extern int cifs_get_inode_info_unix(struct inode **pinode,
 145                         const unsigned char *search_path,
 146                         struct super_block *sb, unsigned int xid);
 147 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 148                               struct cifs_fattr *fattr, struct inode *inode,
 149                               const char *path, const __u16 *pfid);
 150 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 151                                         uid_t, gid_t);
 152 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 153                                         const char *, u32 *);
 154 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 155                                 const char *, int);
 156
 157 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 158 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 159                      unsigned int to_read);
 160 extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
 161                 struct kvec *iov_orig, unsigned int nr_segs,
 162                 unsigned int to_read);
 163 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 164                                struct cifs_sb_info *cifs_sb);
 165 extern int cifs_match_super(struct super_block *, void *);
 166 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 167 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 168                                             const char *devname);
 169 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
 170 extern void cifs_umount(struct cifs_sb_info *);
 171 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
 172
 173 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 174 extern void cifs_dfs_release_automount_timer(void);
 175 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 176 #define cifs_dfs_release_automount_timer()      do { } while (0)
 177 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 178
 179 void cifs_proc_init(void);
 180 void cifs_proc_clean(void);
 181
 182 extern int cifs_negotiate_protocol(const unsigned int xid,
 183                                    struct cifs_ses *ses);
 184 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 185                               struct nls_table *nls_info);
 186 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 187
 188 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 189                     const char *tree, struct cifs_tcon *tcon,
 190                     const struct nls_table *);
 191
 192 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
 193                 const char *searchName, const struct nls_table *nls_codepage,
 194                 __u16 *searchHandle, __u16 search_flags,
 195                 struct cifs_search_info *psrch_inf,
 196                 int map, const char dirsep);
 197
 198 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 199                 __u16 searchHandle, __u16 search_flags,
 200                 struct cifs_search_info *psrch_inf);
 201
 202 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 203                         const __u16 search_handle);
 204
 205 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 206                         u16 netfid, FILE_ALL_INFO *pFindData);
 207 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 208                             const char *search_Name, FILE_ALL_INFO *data,
 209                             int legacy /* whether to use old info level */,
 210                             const struct nls_table *nls_codepage, int remap);
 211 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
 212                                const char *search_name, FILE_ALL_INFO *data,
 213                                const struct nls_table *nls_codepage, int remap);
 214
 215 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 216                         u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 217 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
 218                         struct cifs_tcon *tcon,
 219                         const unsigned char *searchName,
 220                         FILE_UNIX_BASIC_INFO *pFindData,
 221                         const struct nls_table *nls_codepage, int remap);
 222
 223 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
 224                            const char *search_name,
 225                            struct dfs_info3_param **target_nodes,
 226                            unsigned int *num_of_nodes,
 227                            const struct nls_table *nls_codepage, int remap);
 228
 229 extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
 230                         const char *old_path,
 231                         const struct nls_table *nls_codepage,
 232                         unsigned int *num_referrals,
 233                         struct dfs_info3_param **referrals, int remap);
 234 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 235                                  struct cifs_sb_info *cifs_sb,
 236                                  struct smb_vol *vol);
 237 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 238                         struct kstatfs *FSData);
 239 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 240                         struct kstatfs *FSData);
 241 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 242                         __u64 cap);
 243
 244 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 245                         struct cifs_tcon *tcon);
 246 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 247 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 248 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 249                         struct kstatfs *FSData);
 250
 251 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 252                         const char *fileName, const FILE_BASIC_INFO *data,
 253                         const struct nls_table *nls_codepage,
 254                         int remap_special_chars);
 255 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 256                         const FILE_BASIC_INFO *data, __u16 fid,
 257                         __u32 pid_of_opener);
 258 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
 259                                      struct cifs_tcon *tcon,
 260                                      bool delete_file, __u16 fid,
 261                                      __u32 pid_of_opener);
 262 #if 0
 263 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
 264                         char *fileName, __u16 dos_attributes,
 265                         const struct nls_table *nls_codepage);
 266 #endif /* possibly unneeded function */
 267 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
 268                         const char *fileName, __u64 size,
 269                         bool setAllocationSizeFlag,
 270                         const struct nls_table *nls_codepage,
 271                         int remap_special_chars);
 272 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 273                          __u64 size, __u16 fileHandle, __u32 opener_pid,
 274                         bool AllocSizeFlag);
 275
 276 struct cifs_unix_set_info_args {
 277         __u64   ctime;
 278         __u64   atime;
 279         __u64   mtime;
 280         __u64   mode;
 281         __u64   uid;
 282         __u64   gid;
 283         dev_t   device;
 284 };
 285
 286 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
 287                                   struct cifs_tcon *tcon,
 288                                   const struct cifs_unix_set_info_args *args,
 289                                   u16 fid, u32 pid_of_opener);
 290
 291 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
 292                                   struct cifs_tcon *tcon, const char *file_name,
 293                                   const struct cifs_unix_set_info_args *args,
 294                                   const struct nls_table *nls_codepage,
 295                                   int remap);
 296
 297 extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
 298                         const char *name, struct cifs_sb_info *cifs_sb);
 299 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 300                         const char *name, struct cifs_sb_info *cifs_sb);
 301 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 302                         const char *name, __u16 type,
 303                         const struct nls_table *nls_codepage,
 304                         int remap_special_chars);
 305 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 306                         const char *name,
 307                         const struct nls_table *nls_codepage,
 308                         int remap_special_chars);
 309 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
 310                         const char *fromName, const char *toName,
 311                         const struct nls_table *nls_codepage,
 312                         int remap_special_chars);
 313 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
 314                                  int netfid, const char *target_name,
 315                                  const struct nls_table *nls_codepage,
 316                                  int remap_special_chars);
 317 extern int CIFSCreateHardLink(const unsigned int xid,
 318                         struct cifs_tcon *tcon,
 319                         const char *fromName, const char *toName,
 320                         const struct nls_table *nls_codepage,
 321                         int remap_special_chars);
 322 extern int CIFSUnixCreateHardLink(const unsigned int xid,
 323                         struct cifs_tcon *tcon,
 324                         const char *fromName, const char *toName,
 325                         const struct nls_table *nls_codepage,
 326                         int remap_special_chars);
 327 extern int CIFSUnixCreateSymLink(const unsigned int xid,
 328                         struct cifs_tcon *tcon,
 329                         const char *fromName, const char *toName,
 330                         const struct nls_table *nls_codepage);
 331 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 332                         struct cifs_tcon *tcon,
 333                         const unsigned char *searchName, char **syminfo,
 334                         const struct nls_table *nls_codepage);
 335 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
 336 extern int CIFSSMBQueryReparseLinkInfo(const unsigned int xid,
 337                         struct cifs_tcon *tcon,
 338                         const unsigned char *searchName,
 339                         char *symlinkinfo, const int buflen, __u16 fid,
 340                         const struct nls_table *nls_codepage);
 341 #endif /* temporarily unused until cifs_symlink fixed */
 342 extern int CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon,
 343                         const char *fileName, const int disposition,
 344                         const int access_flags, const int omode,
 345                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 346                         const struct nls_table *nls_codepage, int remap);
 347 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 348                         const char *fileName, const int disposition,
 349                         const int access_flags, const int omode,
 350                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 351                         const struct nls_table *nls_codepage, int remap);
 352 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
 353                         u32 posix_flags, __u64 mode, __u16 *netfid,
 354                         FILE_UNIX_BASIC_INFO *pRetData,
 355                         __u32 *pOplock, const char *name,
 356                         const struct nls_table *nls_codepage, int remap);
 357 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 358                         const int smb_file_id);
 359
 360 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 361                         const int smb_file_id);
 362
 363 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 364                         unsigned int *nbytes, char **buf,
 365                         int *return_buf_type);
 366 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 367                         unsigned int *nbytes, const char *buf,
 368                         const char __user *ubuf, const int long_op);
 369 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 370                         unsigned int *nbytes, struct kvec *iov, const int nvec,
 371                         const int long_op);
 372 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
 373                                  const char *search_name, __u64 *inode_number,
 374                                  const struct nls_table *nls_codepage,
 375                                  int remap);
 376
 377 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 378                       const __u16 netfid, const __u8 lock_type,
 379                       const __u32 num_unlock, const __u32 num_lock,
 380                       LOCKING_ANDX_RANGE *buf);
 381 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
 382                         const __u16 netfid, const __u32 netpid, const __u64 len,
 383                         const __u64 offset, const __u32 numUnlock,
 384                         const __u32 numLock, const __u8 lockType,
 385                         const bool waitFlag, const __u8 oplock_level);
 386 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 387                         const __u16 smb_file_id, const __u32 netpid,
 388                         const loff_t start_offset, const __u64 len,
 389                         struct file_lock *, const __u16 lock_type,
 390                         const bool waitFlag);
 391 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 392 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 393 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 394
 395 extern struct cifs_ses *sesInfoAlloc(void);
 396 extern void sesInfoFree(struct cifs_ses *);
 397 extern struct cifs_tcon *tconInfoAlloc(void);
 398 extern void tconInfoFree(struct cifs_tcon *);
 399
 400 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 401 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 402                           __u32 *);
 403 extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
 404                                  struct TCP_Server_Info *server,
 405                                 __u32 expected_sequence_number);
 406 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 407                         const struct nls_table *);
 408 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 409 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 410 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
 411 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
 412 extern int calc_seckey(struct cifs_ses *);
 413
 414 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 415 extern int calc_lanman_hash(const char *password, const char *cryptkey,
 416                                 bool encrypt, char *lnm_session_key);
 417 #endif /* CIFS_WEAK_PW_HASH */
 418 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 419 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
 420                         const int notify_subdirs, const __u16 netfid,
 421                         __u32 filter, struct file *file, int multishot,
 422                         const struct nls_table *nls_codepage);
 423 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
 424 extern int CIFSSMBCopy(unsigned int xid,
 425                         struct cifs_tcon *source_tcon,
 426                         const char *fromName,
 427                         const __u16 target_tid,
 428                         const char *toName, const int flags,
 429                         const struct nls_table *nls_codepage,
 430                         int remap_special_chars);
 431 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 432                         const unsigned char *searchName,
 433                         const unsigned char *ea_name, char *EAData,
 434                         size_t bufsize, const struct nls_table *nls_codepage,
 435                         int remap_special_chars);
 436 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 437                 const char *fileName, const char *ea_name,
 438                 const void *ea_value, const __u16 ea_value_len,
 439                 const struct nls_table *nls_codepage, int remap_special_chars);
 440 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 441                         __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 442 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 443                         struct cifs_ntsd *, __u32, int);
 444 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 445                 const unsigned char *searchName,
 446                 char *acl_inf, const int buflen, const int acl_type,
 447                 const struct nls_table *nls_codepage, int remap_special_chars);
 448 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 449                 const unsigned char *fileName,
 450                 const char *local_acl, const int buflen, const int acl_type,
 451                 const struct nls_table *nls_codepage, int remap_special_chars);
 452 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 453                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 454 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 455 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
 456 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
 457                 const unsigned char *path,
 458                 struct cifs_sb_info *cifs_sb, unsigned int xid);
 459 extern int mdfour(unsigned char *, unsigned char *, int);
 460 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 461                         const struct nls_table *codepage);
 462 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 463                         unsigned char *p24);
 464
 465 /* asynchronous read support */
 466 struct cifs_readdata {
 467         struct kref                     refcount;
 468         struct list_head                list;
 469         struct completion               done;
 470         struct cifsFileInfo             *cfile;
 471         struct address_space            *mapping;
 472         __u64                           offset;
 473         unsigned int                    bytes;
 474         pid_t                           pid;
 475         int                             result;
 476         struct list_head                pages;
 477         struct work_struct              work;
 478         int (*marshal_iov) (struct cifs_readdata *rdata,
 479                             unsigned int remaining);
 480         unsigned int                    nr_iov;
 481         struct kvec                     iov[1];
 482 };
 483
 484 void cifs_readdata_release(struct kref *refcount);
 485 int cifs_async_readv(struct cifs_readdata *rdata);
 486
 487 /* asynchronous write support */
 488 struct cifs_writedata {
 489         struct kref                     refcount;
 490         struct list_head                list;
 491         struct completion               done;
 492         enum writeback_sync_modes       sync_mode;
 493         struct work_struct              work;
 494         struct cifsFileInfo             *cfile;
 495         __u64                           offset;
 496         pid_t                           pid;
 497         unsigned int                    bytes;
 498         int                             result;
 499         void (*marshal_iov) (struct kvec *iov,
 500                              struct cifs_writedata *wdata);
 501         unsigned int                    nr_pages;
 502         struct page                     *pages[1];
 503 };
 504
 505 int cifs_async_writev(struct cifs_writedata *wdata);
 506 void cifs_writev_complete(struct work_struct *work);
 507 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 508                                                 work_func_t complete);
 509 void cifs_writedata_release(struct kref *refcount);
 510
 511 #endif                  /* _CIFSPROTO_H */