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 *cifs_build_path_to_root(struct smb_vol *vol,
  61                                      struct cifs_sb_info *cifs_sb,
  62                                      struct cifs_tcon *tcon);
  63 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  64 extern char *cifs_compose_mount_options(const char *sb_mountdata,
  65                 const char *fullpath, const struct dfs_info3_param *ref,
  66                 char **devname);
  67 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  68 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  69                                         struct TCP_Server_Info *server);
  70 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  71 extern void cifs_wake_up_task(struct mid_q_entry *mid);
  72 extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
  73                            unsigned int nvec, mid_receive_t *receive,
  74                            mid_callback_t *callback, void *cbdata,
  75                            const int flags);
  76 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
  77                         struct smb_hdr * /* input */ ,
  78                         struct smb_hdr * /* out */ ,
  79                         int * /* bytes returned */ , const int);
  80 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
  81                             char *in_buf, int flags);
  82 extern int cifs_setup_request(struct cifs_ses *, struct kvec *, unsigned int,
  83                               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(__u16 fileHandle,
 126                                 struct file *file, struct tcon_link *tlink,
 127                                 __u32 oplock);
 128 extern int cifs_posix_open(char *full_path, struct inode **inode,
 129                            struct super_block *sb, int mode,
 130                            unsigned int f_flags, __u32 *oplock, __u16 *netfid,
 131                            unsigned int xid);
 132 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 133 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 134                                      FILE_UNIX_BASIC_INFO *info,
 135                                      struct cifs_sb_info *cifs_sb);
 136 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 137 extern struct inode *cifs_iget(struct super_block *sb,
 138                                struct cifs_fattr *fattr);
 139
 140 extern int cifs_get_file_info(struct file *filp);
 141 extern int cifs_get_inode_info(struct inode **pinode,
 142                         const unsigned char *search_path,
 143                         FILE_ALL_INFO *pfile_info,
 144                         struct super_block *sb, unsigned int xid,
 145                         const __u16 *pfid);
 146 extern int cifs_get_file_info_unix(struct file *filp);
 147 extern int cifs_get_inode_info_unix(struct inode **pinode,
 148                         const unsigned char *search_path,
 149                         struct super_block *sb, unsigned int xid);
 150 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 151                               struct cifs_fattr *fattr, struct inode *inode,
 152                               const char *path, const __u16 *pfid);
 153 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 154                                         uid_t, gid_t);
 155 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 156                                         const char *, u32 *);
 157 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 158                                 const char *, int);
 159
 160 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 161 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 162                      unsigned int to_read);
 163 extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
 164                 struct kvec *iov_orig, unsigned int nr_segs,
 165                 unsigned int to_read);
 166 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 167                                struct cifs_sb_info *cifs_sb);
 168 extern int cifs_match_super(struct super_block *, void *);
 169 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 170 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 171                                             const char *devname);
 172 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
 173 extern void cifs_umount(struct cifs_sb_info *);
 174 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
 175
 176 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 177 extern void cifs_dfs_release_automount_timer(void);
 178 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 179 #define cifs_dfs_release_automount_timer()      do { } while (0)
 180 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 181
 182 void cifs_proc_init(void);
 183 void cifs_proc_clean(void);
 184
 185 extern int cifs_negotiate_protocol(const unsigned int xid,
 186                                    struct cifs_ses *ses);
 187 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 188                               struct nls_table *nls_info);
 189 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 190
 191 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 192                     const char *tree, struct cifs_tcon *tcon,
 193                     const struct nls_table *);
 194
 195 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
 196                 const char *searchName, const struct nls_table *nls_codepage,
 197                 __u16 *searchHandle, __u16 search_flags,
 198                 struct cifs_search_info *psrch_inf,
 199                 int map, const char dirsep);
 200
 201 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 202                 __u16 searchHandle, __u16 search_flags,
 203                 struct cifs_search_info *psrch_inf);
 204
 205 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 206                         const __u16 search_handle);
 207
 208 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 209                         u16 netfid, FILE_ALL_INFO *pFindData);
 210 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 211                             const char *search_Name, FILE_ALL_INFO *data,
 212                             int legacy /* whether to use old info level */,
 213                             const struct nls_table *nls_codepage, int remap);
 214 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
 215                                const char *search_name, FILE_ALL_INFO *data,
 216                                const struct nls_table *nls_codepage, int remap);
 217
 218 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 219                         u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 220 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
 221                         struct cifs_tcon *tcon,
 222                         const unsigned char *searchName,
 223                         FILE_UNIX_BASIC_INFO *pFindData,
 224                         const struct nls_table *nls_codepage, int remap);
 225
 226 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
 227                            const char *search_name,
 228                            struct dfs_info3_param **target_nodes,
 229                            unsigned int *num_of_nodes,
 230                            const struct nls_table *nls_codepage, int remap);
 231
 232 extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
 233                         const char *old_path,
 234                         const struct nls_table *nls_codepage,
 235                         unsigned int *num_referrals,
 236                         struct dfs_info3_param **referrals, int remap);
 237 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 238                                  struct cifs_sb_info *cifs_sb,
 239                                  struct smb_vol *vol);
 240 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 241                         struct kstatfs *FSData);
 242 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 243                         struct kstatfs *FSData);
 244 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 245                         __u64 cap);
 246
 247 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 248                         struct cifs_tcon *tcon);
 249 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 250 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 251 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 252                         struct kstatfs *FSData);
 253
 254 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 255                         const char *fileName, const FILE_BASIC_INFO *data,
 256                         const struct nls_table *nls_codepage,
 257                         int remap_special_chars);
 258 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 259                         const FILE_BASIC_INFO *data, __u16 fid,
 260                         __u32 pid_of_opener);
 261 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
 262                                      struct cifs_tcon *tcon,
 263                                      bool delete_file, __u16 fid,
 264                                      __u32 pid_of_opener);
 265 #if 0
 266 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
 267                         char *fileName, __u16 dos_attributes,
 268                         const struct nls_table *nls_codepage);
 269 #endif /* possibly unneeded function */
 270 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
 271                         const char *fileName, __u64 size,
 272                         bool setAllocationSizeFlag,
 273                         const struct nls_table *nls_codepage,
 274                         int remap_special_chars);
 275 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 276                          __u64 size, __u16 fileHandle, __u32 opener_pid,
 277                         bool AllocSizeFlag);
 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, char *file_name,
 296                                   const struct cifs_unix_set_info_args *args,
 297                                   const struct nls_table *nls_codepage,
 298                                   int remap_special_chars);
 299
 300 extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
 301                         const char *newName,
 302                         const struct nls_table *nls_codepage,
 303                         int remap_special_chars);
 304 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 305                         const char *name, const struct nls_table *nls_codepage,
 306                         int remap_special_chars);
 307 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 308                         const char *name, __u16 type,
 309                         const struct nls_table *nls_codepage,
 310                         int remap_special_chars);
 311 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 312                         const char *name,
 313                         const struct nls_table *nls_codepage,
 314                         int remap_special_chars);
 315 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
 316                         const char *fromName, const char *toName,
 317                         const struct nls_table *nls_codepage,
 318                         int remap_special_chars);
 319 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
 320                                  int netfid, const char *target_name,
 321                                  const struct nls_table *nls_codepage,
 322                                  int remap_special_chars);
 323 extern int CIFSCreateHardLink(const unsigned int xid,
 324                         struct cifs_tcon *tcon,
 325                         const char *fromName, const char *toName,
 326                         const struct nls_table *nls_codepage,
 327                         int remap_special_chars);
 328 extern int CIFSUnixCreateHardLink(const unsigned int xid,
 329                         struct cifs_tcon *tcon,
 330                         const char *fromName, const char *toName,
 331                         const struct nls_table *nls_codepage,
 332                         int remap_special_chars);
 333 extern int CIFSUnixCreateSymLink(const unsigned int xid,
 334                         struct cifs_tcon *tcon,
 335                         const char *fromName, const char *toName,
 336                         const struct nls_table *nls_codepage);
 337 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 338                         struct cifs_tcon *tcon,
 339                         const unsigned char *searchName, char **syminfo,
 340                         const struct nls_table *nls_codepage);
 341 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
 342 extern int CIFSSMBQueryReparseLinkInfo(const unsigned int xid,
 343                         struct cifs_tcon *tcon,
 344                         const unsigned char *searchName,
 345                         char *symlinkinfo, const int buflen, __u16 fid,
 346                         const struct nls_table *nls_codepage);
 347 #endif /* temporarily unused until cifs_symlink fixed */
 348 extern int CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon,
 349                         const char *fileName, const int disposition,
 350                         const int access_flags, const int omode,
 351                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 352                         const struct nls_table *nls_codepage, int remap);
 353 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 354                         const char *fileName, const int disposition,
 355                         const int access_flags, const int omode,
 356                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 357                         const struct nls_table *nls_codepage, int remap);
 358 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
 359                         u32 posix_flags, __u64 mode, __u16 *netfid,
 360                         FILE_UNIX_BASIC_INFO *pRetData,
 361                         __u32 *pOplock, const char *name,
 362                         const struct nls_table *nls_codepage, int remap);
 363 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 364                         const int smb_file_id);
 365
 366 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 367                         const int smb_file_id);
 368
 369 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 370                         unsigned int *nbytes, char **buf,
 371                         int *return_buf_type);
 372 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 373                         unsigned int *nbytes, const char *buf,
 374                         const char __user *ubuf, const int long_op);
 375 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 376                         unsigned int *nbytes, struct kvec *iov, const int nvec,
 377                         const int long_op);
 378 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
 379                         const unsigned char *searchName, __u64 *inode_number,
 380                         const struct nls_table *nls_codepage,
 381                         int remap_special_chars);
 382
 383 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 384                       const __u16 netfid, const __u8 lock_type,
 385                       const __u32 num_unlock, const __u32 num_lock,
 386                       LOCKING_ANDX_RANGE *buf);
 387 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
 388                         const __u16 netfid, const __u32 netpid, const __u64 len,
 389                         const __u64 offset, const __u32 numUnlock,
 390                         const __u32 numLock, const __u8 lockType,
 391                         const bool waitFlag, const __u8 oplock_level);
 392 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 393                         const __u16 smb_file_id, const __u32 netpid,
 394                         const loff_t start_offset, const __u64 len,
 395                         struct file_lock *, const __u16 lock_type,
 396                         const bool waitFlag);
 397 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 398 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 399 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 400
 401 extern struct cifs_ses *sesInfoAlloc(void);
 402 extern void sesInfoFree(struct cifs_ses *);
 403 extern struct cifs_tcon *tconInfoAlloc(void);
 404 extern void tconInfoFree(struct cifs_tcon *);
 405
 406 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 407 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 408                           __u32 *);
 409 extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
 410                                  struct TCP_Server_Info *server,
 411                                 __u32 expected_sequence_number);
 412 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 413                         const struct nls_table *);
 414 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 415 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 416 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
 417 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
 418 extern int calc_seckey(struct cifs_ses *);
 419
 420 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 421 extern int calc_lanman_hash(const char *password, const char *cryptkey,
 422                                 bool encrypt, char *lnm_session_key);
 423 #endif /* CIFS_WEAK_PW_HASH */
 424 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 425 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
 426                         const int notify_subdirs, const __u16 netfid,
 427                         __u32 filter, struct file *file, int multishot,
 428                         const struct nls_table *nls_codepage);
 429 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
 430 extern int CIFSSMBCopy(unsigned int xid,
 431                         struct cifs_tcon *source_tcon,
 432                         const char *fromName,
 433                         const __u16 target_tid,
 434                         const char *toName, const int flags,
 435                         const struct nls_table *nls_codepage,
 436                         int remap_special_chars);
 437 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 438                         const unsigned char *searchName,
 439                         const unsigned char *ea_name, char *EAData,
 440                         size_t bufsize, const struct nls_table *nls_codepage,
 441                         int remap_special_chars);
 442 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 443                 const char *fileName, const char *ea_name,
 444                 const void *ea_value, const __u16 ea_value_len,
 445                 const struct nls_table *nls_codepage, int remap_special_chars);
 446 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 447                         __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 448 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 449                         struct cifs_ntsd *, __u32, int);
 450 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 451                 const unsigned char *searchName,
 452                 char *acl_inf, const int buflen, const int acl_type,
 453                 const struct nls_table *nls_codepage, int remap_special_chars);
 454 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 455                 const unsigned char *fileName,
 456                 const char *local_acl, const int buflen, const int acl_type,
 457                 const struct nls_table *nls_codepage, int remap_special_chars);
 458 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 459                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 460 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 461 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
 462 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
 463                 const unsigned char *path,
 464                 struct cifs_sb_info *cifs_sb, unsigned int xid);
 465 extern int mdfour(unsigned char *, unsigned char *, int);
 466 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 467                         const struct nls_table *codepage);
 468 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 469                         unsigned char *p24);
 470
 471 /* asynchronous read support */
 472 struct cifs_readdata {
 473         struct kref                     refcount;
 474         struct list_head                list;
 475         struct completion               done;
 476         struct cifsFileInfo             *cfile;
 477         struct address_space            *mapping;
 478         __u64                           offset;
 479         unsigned int                    bytes;
 480         pid_t                           pid;
 481         int                             result;
 482         struct list_head                pages;
 483         struct work_struct              work;
 484         int (*marshal_iov) (struct cifs_readdata *rdata,
 485                             unsigned int remaining);
 486         unsigned int                    nr_iov;
 487         struct kvec                     iov[1];
 488 };
 489
 490 void cifs_readdata_release(struct kref *refcount);
 491 int cifs_async_readv(struct cifs_readdata *rdata);
 492
 493 /* asynchronous write support */
 494 struct cifs_writedata {
 495         struct kref                     refcount;
 496         struct list_head                list;
 497         struct completion               done;
 498         enum writeback_sync_modes       sync_mode;
 499         struct work_struct              work;
 500         struct cifsFileInfo             *cfile;
 501         __u64                           offset;
 502         pid_t                           pid;
 503         unsigned int                    bytes;
 504         int                             result;
 505         void (*marshal_iov) (struct kvec *iov,
 506                              struct cifs_writedata *wdata);
 507         unsigned int                    nr_pages;
 508         struct page                     *pages[1];
 509 };
 510
 511 int cifs_async_writev(struct cifs_writedata *wdata);
 512 void cifs_writev_complete(struct work_struct *work);
 513 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 514                                                 work_func_t complete);
 515 void cifs_writedata_release(struct kref *refcount);
 516
 517 #endif                  /* _CIFSPROTO_H */