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,                                   \
  50              from_kuid(&init_user_ns, current_fsuid()));        \
  51         __xid;                                                  \
  52 })
  53
  54 #define free_xid(curr_xid)                                      \
  55 do {                                                            \
  56         _free_xid(curr_xid);                                    \
  57         cFYI(1, "CIFS VFS: leaving %s (xid = %u) rc = %d",      \
  58              __func__, curr_xid, (int)rc);                      \
  59 } while (0)
  60 extern int init_cifs_idmap(void);
  61 extern void exit_cifs_idmap(void);
  62 extern char *build_path_from_dentry(struct dentry *);
  63 extern char *cifs_build_path_to_root(struct smb_vol *vol,
  64                                      struct cifs_sb_info *cifs_sb,
  65                                      struct cifs_tcon *tcon);
  66 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  67 extern char *cifs_compose_mount_options(const char *sb_mountdata,
  68                 const char *fullpath, const struct dfs_info3_param *ref,
  69                 char **devname);
  70 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  71 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  72                                         struct TCP_Server_Info *server);
  73 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  74 extern void cifs_delete_mid(struct mid_q_entry *mid);
  75 extern void cifs_wake_up_task(struct mid_q_entry *mid);
  76 extern int cifs_call_async(struct TCP_Server_Info *server,
  77                         struct smb_rqst *rqst,
  78                         mid_receive_t *receive, mid_callback_t *callback,
  79                         void *cbdata, const int flags);
  80 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
  81                         struct smb_hdr * /* input */ ,
  82                         struct smb_hdr * /* out */ ,
  83                         int * /* bytes returned */ , const int);
  84 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
  85                             char *in_buf, int flags);
  86 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
  87                                 struct smb_rqst *);
  88 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
  89                                                 struct smb_rqst *);
  90 extern int cifs_check_receive(struct mid_q_entry *mid,
  91                         struct TCP_Server_Info *server, bool log_error);
  92 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
  93                         struct kvec *, int /* nvec to send */,
  94                         int * /* type of buf returned */ , const int flags);
  95 extern int SendReceiveBlockingLock(const unsigned int xid,
  96                         struct cifs_tcon *ptcon,
  97                         struct smb_hdr *in_buf ,
  98                         struct smb_hdr *out_buf,
  99                         int *bytes_returned);
 100 extern int cifs_reconnect(struct TCP_Server_Info *server);
 101 extern int checkSMB(char *buf, unsigned int length);
 102 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
 103 extern bool backup_cred(struct cifs_sb_info *);
 104 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
 105 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
 106                             unsigned int bytes_written);
 107 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
 108 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
 109 extern unsigned int smbCalcSize(void *buf);
 110 extern int decode_negTokenInit(unsigned char *security_blob, int length,
 111                         struct TCP_Server_Info *server);
 112 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
 113 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 114 extern int map_smb_to_linux_error(char *buf, bool logErr);
 115 extern void header_assemble(struct smb_hdr *, char /* command */ ,
 116                             const struct cifs_tcon *, int /* length of
 117                             fixed section (word count) in two byte units */);
 118 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 119                                 struct cifs_ses *ses,
 120                                 void **request_buf);
 121 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 122                           const struct nls_table *nls_cp);
 123 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 124 extern u64 cifs_UnixTimeToNT(struct timespec);
 125 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
 126                                       int offset);
 127 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 128 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
 129                              struct file_lock *flock, const unsigned int xid);
 130 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
 131
 132 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
 133                                               struct file *file,
 134                                               struct tcon_link *tlink,
 135                                               __u32 oplock);
 136 extern int cifs_posix_open(char *full_path, struct inode **inode,
 137                            struct super_block *sb, int mode,
 138                            unsigned int f_flags, __u32 *oplock, __u16 *netfid,
 139                            unsigned int xid);
 140 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 141 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 142                                      FILE_UNIX_BASIC_INFO *info,
 143                                      struct cifs_sb_info *cifs_sb);
 144 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
 145                                         struct cifs_sb_info *);
 146 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 147 extern struct inode *cifs_iget(struct super_block *sb,
 148                                struct cifs_fattr *fattr);
 149
 150 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
 151                                FILE_ALL_INFO *data, struct super_block *sb,
 152                                int xid, const __u16 *fid);
 153 extern int cifs_get_inode_info_unix(struct inode **pinode,
 154                         const unsigned char *search_path,
 155                         struct super_block *sb, unsigned int xid);
 156 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
 157                               unsigned int xid, char *full_path, __u32 dosattr);
 158 extern int cifs_rename_pending_delete(const char *full_path,
 159                                       struct dentry *dentry,
 160                                       const unsigned int xid);
 161 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 162                               struct cifs_fattr *fattr, struct inode *inode,
 163                               const char *path, const __u16 *pfid);
 164 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 165                                         kuid_t, kgid_t);
 166 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 167                                         const char *, u32 *);
 168 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 169                                 const char *, int);
 170
 171 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 172 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 173                      unsigned int to_read);
 174 extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
 175                 struct kvec *iov_orig, unsigned int nr_segs,
 176                 unsigned int to_read);
 177 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 178                                struct cifs_sb_info *cifs_sb);
 179 extern int cifs_match_super(struct super_block *, void *);
 180 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 181 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 182                                             const char *devname);
 183 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
 184 extern void cifs_umount(struct cifs_sb_info *);
 185 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
 186 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
 187                                     __u64 length, __u8 type,
 188                                     struct cifsLockInfo **conf_lock,
 189                                     int rw_check);
 190 extern void cifs_add_pending_open(struct cifs_fid *fid,
 191                                   struct tcon_link *tlink,
 192                                   struct cifs_pending_open *open);
 193 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
 194                                          struct tcon_link *tlink,
 195                                          struct cifs_pending_open *open);
 196 extern void cifs_del_pending_open(struct cifs_pending_open *open);
 197
 198 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 199 extern void cifs_dfs_release_automount_timer(void);
 200 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 201 #define cifs_dfs_release_automount_timer()      do { } while (0)
 202 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 203
 204 void cifs_proc_init(void);
 205 void cifs_proc_clean(void);
 206
 207 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
 208 extern void cifs_free_llist(struct list_head *llist);
 209 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
 210
 211 extern int cifs_negotiate_protocol(const unsigned int xid,
 212                                    struct cifs_ses *ses);
 213 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 214                               struct nls_table *nls_info);
 215 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 216
 217 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 218                     const char *tree, struct cifs_tcon *tcon,
 219                     const struct nls_table *);
 220
 221 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
 222                 const char *searchName, struct cifs_sb_info *cifs_sb,
 223                 __u16 *searchHandle, __u16 search_flags,
 224                 struct cifs_search_info *psrch_inf,
 225                 bool msearch);
 226
 227 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 228                 __u16 searchHandle, __u16 search_flags,
 229                 struct cifs_search_info *psrch_inf);
 230
 231 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 232                         const __u16 search_handle);
 233
 234 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 235                         u16 netfid, FILE_ALL_INFO *pFindData);
 236 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 237                             const char *search_Name, FILE_ALL_INFO *data,
 238                             int legacy /* whether to use old info level */,
 239                             const struct nls_table *nls_codepage, int remap);
 240 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
 241                                const char *search_name, FILE_ALL_INFO *data,
 242                                const struct nls_table *nls_codepage, int remap);
 243
 244 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 245                         u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 246 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
 247                         struct cifs_tcon *tcon,
 248                         const unsigned char *searchName,
 249                         FILE_UNIX_BASIC_INFO *pFindData,
 250                         const struct nls_table *nls_codepage, int remap);
 251
 252 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
 253                            const char *search_name,
 254                            struct dfs_info3_param **target_nodes,
 255                            unsigned int *num_of_nodes,
 256                            const struct nls_table *nls_codepage, int remap);
 257
 258 extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
 259                         const char *old_path,
 260                         const struct nls_table *nls_codepage,
 261                         unsigned int *num_referrals,
 262                         struct dfs_info3_param **referrals, int remap);
 263 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 264                                  struct cifs_sb_info *cifs_sb,
 265                                  struct smb_vol *vol);
 266 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 267                         struct kstatfs *FSData);
 268 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 269                         struct kstatfs *FSData);
 270 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 271                         __u64 cap);
 272
 273 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 274                         struct cifs_tcon *tcon);
 275 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 276 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 277 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 278                         struct kstatfs *FSData);
 279
 280 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 281                         const char *fileName, const FILE_BASIC_INFO *data,
 282                         const struct nls_table *nls_codepage,
 283                         int remap_special_chars);
 284 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 285                         const FILE_BASIC_INFO *data, __u16 fid,
 286                         __u32 pid_of_opener);
 287 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
 288                                      struct cifs_tcon *tcon,
 289                                      bool delete_file, __u16 fid,
 290                                      __u32 pid_of_opener);
 291 #if 0
 292 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
 293                         char *fileName, __u16 dos_attributes,
 294                         const struct nls_table *nls_codepage);
 295 #endif /* possibly unneeded function */
 296 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
 297                          const char *file_name, __u64 size,
 298                          struct cifs_sb_info *cifs_sb, bool set_allocation);
 299 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 300                               struct cifsFileInfo *cfile, __u64 size,
 301                               bool set_allocation);
 302
 303 struct cifs_unix_set_info_args {
 304         __u64   ctime;
 305         __u64   atime;
 306         __u64   mtime;
 307         __u64   mode;
 308         kuid_t  uid;
 309         kgid_t  gid;
 310         dev_t   device;
 311 };
 312
 313 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
 314                                   struct cifs_tcon *tcon,
 315                                   const struct cifs_unix_set_info_args *args,
 316                                   u16 fid, u32 pid_of_opener);
 317
 318 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
 319                                   struct cifs_tcon *tcon, const char *file_name,
 320                                   const struct cifs_unix_set_info_args *args,
 321                                   const struct nls_table *nls_codepage,
 322                                   int remap);
 323
 324 extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
 325                         const char *name, struct cifs_sb_info *cifs_sb);
 326 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 327                         const char *name, struct cifs_sb_info *cifs_sb);
 328 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 329                         const char *name, __u16 type,
 330                         const struct nls_table *nls_codepage,
 331                         int remap_special_chars);
 332 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 333                           const char *name, struct cifs_sb_info *cifs_sb);
 334 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
 335                          const char *from_name, const char *to_name,
 336                          struct cifs_sb_info *cifs_sb);
 337 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
 338                                  int netfid, const char *target_name,
 339                                  const struct nls_table *nls_codepage,
 340                                  int remap_special_chars);
 341 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
 342                               const char *from_name, const char *to_name,
 343                               struct cifs_sb_info *cifs_sb);
 344 extern int CIFSUnixCreateHardLink(const unsigned int xid,
 345                         struct cifs_tcon *tcon,
 346                         const char *fromName, const char *toName,
 347                         const struct nls_table *nls_codepage,
 348                         int remap_special_chars);
 349 extern int CIFSUnixCreateSymLink(const unsigned int xid,
 350                         struct cifs_tcon *tcon,
 351                         const char *fromName, const char *toName,
 352                         const struct nls_table *nls_codepage);
 353 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 354                         struct cifs_tcon *tcon,
 355                         const unsigned char *searchName, char **syminfo,
 356                         const struct nls_table *nls_codepage);
 357 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
 358 extern int CIFSSMBQueryReparseLinkInfo(const unsigned int xid,
 359                         struct cifs_tcon *tcon,
 360                         const unsigned char *searchName,
 361                         char *symlinkinfo, const int buflen, __u16 fid,
 362                         const struct nls_table *nls_codepage);
 363 #endif /* temporarily unused until cifs_symlink fixed */
 364 extern int CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon,
 365                         const char *fileName, const int disposition,
 366                         const int access_flags, const int omode,
 367                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 368                         const struct nls_table *nls_codepage, int remap);
 369 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 370                         const char *fileName, const int disposition,
 371                         const int access_flags, const int omode,
 372                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 373                         const struct nls_table *nls_codepage, int remap);
 374 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
 375                         u32 posix_flags, __u64 mode, __u16 *netfid,
 376                         FILE_UNIX_BASIC_INFO *pRetData,
 377                         __u32 *pOplock, const char *name,
 378                         const struct nls_table *nls_codepage, int remap);
 379 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 380                         const int smb_file_id);
 381
 382 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 383                         const int smb_file_id);
 384
 385 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 386                         unsigned int *nbytes, char **buf,
 387                         int *return_buf_type);
 388 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 389                         unsigned int *nbytes, const char *buf,
 390                         const char __user *ubuf, const int long_op);
 391 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 392                         unsigned int *nbytes, struct kvec *iov, const int nvec);
 393 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
 394                                  const char *search_name, __u64 *inode_number,
 395                                  const struct nls_table *nls_codepage,
 396                                  int remap);
 397
 398 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 399                       const __u16 netfid, const __u8 lock_type,
 400                       const __u32 num_unlock, const __u32 num_lock,
 401                       LOCKING_ANDX_RANGE *buf);
 402 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
 403                         const __u16 netfid, const __u32 netpid, const __u64 len,
 404                         const __u64 offset, const __u32 numUnlock,
 405                         const __u32 numLock, const __u8 lockType,
 406                         const bool waitFlag, const __u8 oplock_level);
 407 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 408                         const __u16 smb_file_id, const __u32 netpid,
 409                         const loff_t start_offset, const __u64 len,
 410                         struct file_lock *, const __u16 lock_type,
 411                         const bool waitFlag);
 412 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 413 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 414 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 415
 416 extern struct cifs_ses *sesInfoAlloc(void);
 417 extern void sesInfoFree(struct cifs_ses *);
 418 extern struct cifs_tcon *tconInfoAlloc(void);
 419 extern void tconInfoFree(struct cifs_tcon *);
 420
 421 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
 422                    __u32 *pexpected_response_sequence_number);
 423 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 424                           __u32 *);
 425 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 426 extern int cifs_verify_signature(struct smb_rqst *rqst,
 427                                  struct TCP_Server_Info *server,
 428                                 __u32 expected_sequence_number);
 429 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 430                         const struct nls_table *);
 431 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 432 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 433 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
 434 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
 435 extern int calc_seckey(struct cifs_ses *);
 436
 437 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 438 extern int calc_lanman_hash(const char *password, const char *cryptkey,
 439                                 bool encrypt, char *lnm_session_key);
 440 #endif /* CIFS_WEAK_PW_HASH */
 441 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 442 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
 443                         const int notify_subdirs, const __u16 netfid,
 444                         __u32 filter, struct file *file, int multishot,
 445                         const struct nls_table *nls_codepage);
 446 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
 447 extern int CIFSSMBCopy(unsigned int xid,
 448                         struct cifs_tcon *source_tcon,
 449                         const char *fromName,
 450                         const __u16 target_tid,
 451                         const char *toName, const int flags,
 452                         const struct nls_table *nls_codepage,
 453                         int remap_special_chars);
 454 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 455                         const unsigned char *searchName,
 456                         const unsigned char *ea_name, char *EAData,
 457                         size_t bufsize, const struct nls_table *nls_codepage,
 458                         int remap_special_chars);
 459 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 460                 const char *fileName, const char *ea_name,
 461                 const void *ea_value, const __u16 ea_value_len,
 462                 const struct nls_table *nls_codepage, int remap_special_chars);
 463 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 464                         __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 465 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 466                         struct cifs_ntsd *, __u32, int);
 467 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 468                 const unsigned char *searchName,
 469                 char *acl_inf, const int buflen, const int acl_type,
 470                 const struct nls_table *nls_codepage, int remap_special_chars);
 471 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 472                 const unsigned char *fileName,
 473                 const char *local_acl, const int buflen, const int acl_type,
 474                 const struct nls_table *nls_codepage, int remap_special_chars);
 475 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 476                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 477 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 478 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
 479 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
 480                 const unsigned char *path,
 481                 struct cifs_sb_info *cifs_sb, unsigned int xid);
 482 extern int mdfour(unsigned char *, unsigned char *, int);
 483 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 484                         const struct nls_table *codepage);
 485 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 486                         unsigned char *p24);
 487
 488 void cifs_readdata_release(struct kref *refcount);
 489 int cifs_async_readv(struct cifs_readdata *rdata);
 490 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
 491
 492 int cifs_async_writev(struct cifs_writedata *wdata);
 493 void cifs_writev_complete(struct work_struct *work);
 494 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 495                                                 work_func_t complete);
 496 void cifs_writedata_release(struct kref *refcount);
 497
 498 #endif                  /* _CIFSPROTO_H */