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_delete_mid(struct mid_q_entry *mid);
  69 extern void cifs_wake_up_task(struct mid_q_entry *mid);
  70 extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
  71                            unsigned int nvec, mid_receive_t *receive,
  72                            mid_callback_t *callback, void *cbdata,
  73                            const int flags);
  74 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
  75                         struct smb_hdr * /* input */ ,
  76                         struct smb_hdr * /* out */ ,
  77                         int * /* bytes returned */ , const int);
  78 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
  79                             char *in_buf, int flags);
  80 extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
  81                               struct mid_q_entry **);
  82 extern int cifs_setup_async_request(struct TCP_Server_Info *, struct kvec *,
  83                                     unsigned int, struct mid_q_entry **);
  84 extern int cifs_check_receive(struct mid_q_entry *mid,
  85                         struct TCP_Server_Info *server, bool log_error);
  86 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
  87                         struct kvec *, int /* nvec to send */,
  88                         int * /* type of buf returned */ , const int flags);
  89 extern int SendReceiveBlockingLock(const unsigned int xid,
  90                         struct cifs_tcon *ptcon,
  91                         struct smb_hdr *in_buf ,
  92                         struct smb_hdr *out_buf,
  93                         int *bytes_returned);
  94 extern int cifs_reconnect(struct TCP_Server_Info *server);
  95 extern int checkSMB(char *buf, unsigned int length);
  96 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
  97 extern bool backup_cred(struct cifs_sb_info *);
  98 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
  99 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
 100                             unsigned int bytes_written);
 101 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
 102 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
 103 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
 104 extern int decode_negTokenInit(unsigned char *security_blob, int length,
 105                         struct TCP_Server_Info *server);
 106 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
 107 extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 108 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
 109                                 const unsigned short int port);
 110 extern int map_smb_to_linux_error(char *buf, bool logErr);
 111 extern void header_assemble(struct smb_hdr *, char /* command */ ,
 112                             const struct cifs_tcon *, int /* length of
 113                             fixed section (word count) in two byte units */);
 114 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 115                                 struct cifs_ses *ses,
 116                                 void **request_buf);
 117 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 118                           const struct nls_table *nls_cp);
 119 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 120 extern u64 cifs_UnixTimeToNT(struct timespec);
 121 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
 122                                       int offset);
 123 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 124
 125 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
 126                                               struct file *file,
 127                                               struct tcon_link *tlink,
 128                                               __u32 oplock);
 129 extern int cifs_posix_open(char *full_path, struct inode **inode,
 130                            struct super_block *sb, int mode,
 131                            unsigned int f_flags, __u32 *oplock, __u16 *netfid,
 132                            unsigned int xid);
 133 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 134 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 135                                      FILE_UNIX_BASIC_INFO *info,
 136                                      struct cifs_sb_info *cifs_sb);
 137 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 138 extern struct inode *cifs_iget(struct super_block *sb,
 139                                struct cifs_fattr *fattr);
 140
 141 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
 142                                FILE_ALL_INFO *data, struct super_block *sb,
 143                                int xid, const __u16 *fid);
 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_set_file_info(struct inode *inode, struct iattr *attrs,
 148                               unsigned int xid, char *full_path, __u32 dosattr);
 149 extern int cifs_rename_pending_delete(const char *full_path,
 150                                       struct dentry *dentry,
 151                                       const unsigned int xid);
 152 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 153                               struct cifs_fattr *fattr, struct inode *inode,
 154                               const char *path, const __u16 *pfid);
 155 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 156                                         uid_t, gid_t);
 157 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 158                                         const char *, u32 *);
 159 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 160                                 const char *, int);
 161
 162 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 163 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 164                      unsigned int to_read);
 165 extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
 166                 struct kvec *iov_orig, unsigned int nr_segs,
 167                 unsigned int to_read);
 168 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 169                                struct cifs_sb_info *cifs_sb);
 170 extern int cifs_match_super(struct super_block *, void *);
 171 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 172 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 173                                             const char *devname);
 174 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
 175 extern void cifs_umount(struct cifs_sb_info *);
 176 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
 177
 178 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 179 extern void cifs_dfs_release_automount_timer(void);
 180 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 181 #define cifs_dfs_release_automount_timer()      do { } while (0)
 182 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 183
 184 void cifs_proc_init(void);
 185 void cifs_proc_clean(void);
 186
 187 extern int cifs_negotiate_protocol(const unsigned int xid,
 188                                    struct cifs_ses *ses);
 189 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 190                               struct nls_table *nls_info);
 191 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 192
 193 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 194                     const char *tree, struct cifs_tcon *tcon,
 195                     const struct nls_table *);
 196
 197 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
 198                 const char *searchName, const struct nls_table *nls_codepage,
 199                 __u16 *searchHandle, __u16 search_flags,
 200                 struct cifs_search_info *psrch_inf,
 201                 int map, const char dirsep);
 202
 203 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 204                 __u16 searchHandle, __u16 search_flags,
 205                 struct cifs_search_info *psrch_inf);
 206
 207 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 208                         const __u16 search_handle);
 209
 210 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 211                         u16 netfid, FILE_ALL_INFO *pFindData);
 212 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 213                             const char *search_Name, FILE_ALL_INFO *data,
 214                             int legacy /* whether to use old info level */,
 215                             const struct nls_table *nls_codepage, int remap);
 216 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
 217                                const char *search_name, FILE_ALL_INFO *data,
 218                                const struct nls_table *nls_codepage, int remap);
 219
 220 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 221                         u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 222 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
 223                         struct cifs_tcon *tcon,
 224                         const unsigned char *searchName,
 225                         FILE_UNIX_BASIC_INFO *pFindData,
 226                         const struct nls_table *nls_codepage, int remap);
 227
 228 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
 229                            const char *search_name,
 230                            struct dfs_info3_param **target_nodes,
 231                            unsigned int *num_of_nodes,
 232                            const struct nls_table *nls_codepage, int remap);
 233
 234 extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
 235                         const char *old_path,
 236                         const struct nls_table *nls_codepage,
 237                         unsigned int *num_referrals,
 238                         struct dfs_info3_param **referrals, int remap);
 239 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 240                                  struct cifs_sb_info *cifs_sb,
 241                                  struct smb_vol *vol);
 242 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 243                         struct kstatfs *FSData);
 244 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 245                         struct kstatfs *FSData);
 246 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 247                         __u64 cap);
 248
 249 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 250                         struct cifs_tcon *tcon);
 251 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 252 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 253 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 254                         struct kstatfs *FSData);
 255
 256 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 257                         const char *fileName, const FILE_BASIC_INFO *data,
 258                         const struct nls_table *nls_codepage,
 259                         int remap_special_chars);
 260 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 261                         const FILE_BASIC_INFO *data, __u16 fid,
 262                         __u32 pid_of_opener);
 263 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
 264                                      struct cifs_tcon *tcon,
 265                                      bool delete_file, __u16 fid,
 266                                      __u32 pid_of_opener);
 267 #if 0
 268 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
 269                         char *fileName, __u16 dos_attributes,
 270                         const struct nls_table *nls_codepage);
 271 #endif /* possibly unneeded function */
 272 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
 273                          const char *file_name, __u64 size,
 274                          struct cifs_sb_info *cifs_sb, bool set_allocation);
 275 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 276                               struct cifsFileInfo *cfile, __u64 size,
 277                               bool set_allocation);
 278
 279 struct cifs_unix_set_info_args {
 280         __u64   ctime;
 281         __u64   atime;
 282         __u64   mtime;
 283         __u64   mode;
 284         __u64   uid;
 285         __u64   gid;
 286         dev_t   device;
 287 };
 288
 289 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
 290                                   struct cifs_tcon *tcon,
 291                                   const struct cifs_unix_set_info_args *args,
 292                                   u16 fid, u32 pid_of_opener);
 293
 294 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
 295                                   struct cifs_tcon *tcon, const char *file_name,
 296                                   const struct cifs_unix_set_info_args *args,
 297                                   const struct nls_table *nls_codepage,
 298                                   int remap);
 299
 300 extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
 301                         const char *name, struct cifs_sb_info *cifs_sb);
 302 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 303                         const char *name, struct cifs_sb_info *cifs_sb);
 304 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 305                         const char *name, __u16 type,
 306                         const struct nls_table *nls_codepage,
 307                         int remap_special_chars);
 308 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 309                           const char *name, struct cifs_sb_info *cifs_sb);
 310 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
 311                          const char *from_name, const char *to_name,
 312                          struct cifs_sb_info *cifs_sb);
 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, struct cifs_tcon *tcon,
 318                               const char *from_name, const char *to_name,
 319                               struct cifs_sb_info *cifs_sb);
 320 extern int CIFSUnixCreateHardLink(const unsigned int xid,
 321                         struct cifs_tcon *tcon,
 322                         const char *fromName, const char *toName,
 323                         const struct nls_table *nls_codepage,
 324                         int remap_special_chars);
 325 extern int CIFSUnixCreateSymLink(const unsigned int xid,
 326                         struct cifs_tcon *tcon,
 327                         const char *fromName, const char *toName,
 328                         const struct nls_table *nls_codepage);
 329 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 330                         struct cifs_tcon *tcon,
 331                         const unsigned char *searchName, char **syminfo,
 332                         const struct nls_table *nls_codepage);
 333 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
 334 extern int CIFSSMBQueryReparseLinkInfo(const unsigned int xid,
 335                         struct cifs_tcon *tcon,
 336                         const unsigned char *searchName,
 337                         char *symlinkinfo, const int buflen, __u16 fid,
 338                         const struct nls_table *nls_codepage);
 339 #endif /* temporarily unused until cifs_symlink fixed */
 340 extern int CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon,
 341                         const char *fileName, const int disposition,
 342                         const int access_flags, const int omode,
 343                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 344                         const struct nls_table *nls_codepage, int remap);
 345 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 346                         const char *fileName, const int disposition,
 347                         const int access_flags, const int omode,
 348                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 349                         const struct nls_table *nls_codepage, int remap);
 350 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
 351                         u32 posix_flags, __u64 mode, __u16 *netfid,
 352                         FILE_UNIX_BASIC_INFO *pRetData,
 353                         __u32 *pOplock, const char *name,
 354                         const struct nls_table *nls_codepage, int remap);
 355 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 356                         const int smb_file_id);
 357
 358 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 359                         const int smb_file_id);
 360
 361 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 362                         unsigned int *nbytes, char **buf,
 363                         int *return_buf_type);
 364 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 365                         unsigned int *nbytes, const char *buf,
 366                         const char __user *ubuf, const int long_op);
 367 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 368                         unsigned int *nbytes, struct kvec *iov, const int nvec);
 369 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
 370                                  const char *search_name, __u64 *inode_number,
 371                                  const struct nls_table *nls_codepage,
 372                                  int remap);
 373
 374 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 375                       const __u16 netfid, const __u8 lock_type,
 376                       const __u32 num_unlock, const __u32 num_lock,
 377                       LOCKING_ANDX_RANGE *buf);
 378 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
 379                         const __u16 netfid, const __u32 netpid, const __u64 len,
 380                         const __u64 offset, const __u32 numUnlock,
 381                         const __u32 numLock, const __u8 lockType,
 382                         const bool waitFlag, const __u8 oplock_level);
 383 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 384                         const __u16 smb_file_id, const __u32 netpid,
 385                         const loff_t start_offset, const __u64 len,
 386                         struct file_lock *, const __u16 lock_type,
 387                         const bool waitFlag);
 388 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 389 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 390 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 391
 392 extern struct cifs_ses *sesInfoAlloc(void);
 393 extern void sesInfoFree(struct cifs_ses *);
 394 extern struct cifs_tcon *tconInfoAlloc(void);
 395 extern void tconInfoFree(struct cifs_tcon *);
 396
 397 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 398 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 399                           __u32 *);
 400 extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
 401                                  struct TCP_Server_Info *server,
 402                                 __u32 expected_sequence_number);
 403 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 404                         const struct nls_table *);
 405 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 406 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 407 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
 408 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
 409 extern int calc_seckey(struct cifs_ses *);
 410
 411 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 412 extern int calc_lanman_hash(const char *password, const char *cryptkey,
 413                                 bool encrypt, char *lnm_session_key);
 414 #endif /* CIFS_WEAK_PW_HASH */
 415 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 416 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
 417                         const int notify_subdirs, const __u16 netfid,
 418                         __u32 filter, struct file *file, int multishot,
 419                         const struct nls_table *nls_codepage);
 420 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
 421 extern int CIFSSMBCopy(unsigned int xid,
 422                         struct cifs_tcon *source_tcon,
 423                         const char *fromName,
 424                         const __u16 target_tid,
 425                         const char *toName, const int flags,
 426                         const struct nls_table *nls_codepage,
 427                         int remap_special_chars);
 428 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 429                         const unsigned char *searchName,
 430                         const unsigned char *ea_name, char *EAData,
 431                         size_t bufsize, const struct nls_table *nls_codepage,
 432                         int remap_special_chars);
 433 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 434                 const char *fileName, const char *ea_name,
 435                 const void *ea_value, const __u16 ea_value_len,
 436                 const struct nls_table *nls_codepage, int remap_special_chars);
 437 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 438                         __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 439 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 440                         struct cifs_ntsd *, __u32, int);
 441 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 442                 const unsigned char *searchName,
 443                 char *acl_inf, const int buflen, const int acl_type,
 444                 const struct nls_table *nls_codepage, int remap_special_chars);
 445 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 446                 const unsigned char *fileName,
 447                 const char *local_acl, const int buflen, const int acl_type,
 448                 const struct nls_table *nls_codepage, int remap_special_chars);
 449 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 450                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 451 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 452 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
 453 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
 454                 const unsigned char *path,
 455                 struct cifs_sb_info *cifs_sb, unsigned int xid);
 456 extern int mdfour(unsigned char *, unsigned char *, int);
 457 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 458                         const struct nls_table *codepage);
 459 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 460                         unsigned char *p24);
 461
 462 void cifs_readdata_release(struct kref *refcount);
 463 int cifs_async_readv(struct cifs_readdata *rdata);
 464 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
 465
 466 int cifs_async_writev(struct cifs_writedata *wdata);
 467 void cifs_writev_complete(struct work_struct *work);
 468 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 469                                                 work_func_t complete);
 470 void cifs_writedata_release(struct kref *refcount);
 471
 472 #endif                  /* _CIFSPROTO_H */