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