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 free_rsp_buf(int, void *);
  40 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
  41                         unsigned int /* length */);
  42 extern unsigned int _get_xid(void);
  43 extern void _free_xid(unsigned int);
  44 #define get_xid()                                               \
  45 ({                                                              \
  46         unsigned int __xid = _get_xid();                                \
  47         cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n",      \
  48                  __func__, __xid,                                       \
  49                  from_kuid(&init_user_ns, current_fsuid()));            \
  50         __xid;                                                  \
  51 })
  52
  53 #define free_xid(curr_xid)                                      \
  54 do {                                                            \
  55         _free_xid(curr_xid);                                    \
  56         cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n",      \
  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 int init_cifs_spnego(void);
  62 extern void exit_cifs_spnego(void);
  63 extern char *build_path_from_dentry(struct dentry *);
  64 extern char *cifs_build_path_to_root(struct smb_vol *vol,
  65                                      struct cifs_sb_info *cifs_sb,
  66                                      struct cifs_tcon *tcon,
  67                                      int add_treename);
  68 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  69 extern char *cifs_compose_mount_options(const char *sb_mountdata,
  70                 const char *fullpath, const struct dfs_info3_param *ref,
  71                 char **devname);
  72 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  73 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  74                                         struct TCP_Server_Info *server);
  75 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  76 extern void cifs_delete_mid(struct mid_q_entry *mid);
  77 extern void cifs_wake_up_task(struct mid_q_entry *mid);
  78 extern int cifs_call_async(struct TCP_Server_Info *server,
  79                         struct smb_rqst *rqst,
  80                         mid_receive_t *receive, mid_callback_t *callback,
  81                         void *cbdata, const int flags);
  82 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
  83                         struct smb_hdr * /* input */ ,
  84                         struct smb_hdr * /* out */ ,
  85                         int * /* bytes returned */ , const int);
  86 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
  87                             char *in_buf, int flags);
  88 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
  89                                 struct smb_rqst *);
  90 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
  91                                                 struct smb_rqst *);
  92 extern int cifs_check_receive(struct mid_q_entry *mid,
  93                         struct TCP_Server_Info *server, bool log_error);
  94 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
  95                                  unsigned int size, unsigned int *num,
  96                                  unsigned int *credits);
  97 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
  98                         struct kvec *, int /* nvec to send */,
  99                         int * /* type of buf returned */, const int flags,
 100                         struct kvec * /* resp vec */);
 101 extern int SendReceiveBlockingLock(const unsigned int xid,
 102                         struct cifs_tcon *ptcon,
 103                         struct smb_hdr *in_buf ,
 104                         struct smb_hdr *out_buf,
 105                         int *bytes_returned);
 106 extern int cifs_reconnect(struct TCP_Server_Info *server);
 107 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
 108 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
 109 extern bool backup_cred(struct cifs_sb_info *);
 110 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
 111 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
 112                             unsigned int bytes_written);
 113 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
 114 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
 115 extern unsigned int smbCalcSize(void *buf);
 116 extern int decode_negTokenInit(unsigned char *security_blob, int length,
 117                         struct TCP_Server_Info *server);
 118 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
 119 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 120 extern int map_smb_to_linux_error(char *buf, bool logErr);
 121 extern void header_assemble(struct smb_hdr *, char /* command */ ,
 122                             const struct cifs_tcon *, int /* length of
 123                             fixed section (word count) in two byte units */);
 124 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 125                                 struct cifs_ses *ses,
 126                                 void **request_buf);
 127 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
 128                                 enum securityEnum requested);
 129 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 130                           const struct nls_table *nls_cp);
 131 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 132 extern u64 cifs_UnixTimeToNT(struct timespec);
 133 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
 134                                       int offset);
 135 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 136 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
 137 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
 138 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
 139 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
 140                              struct file_lock *flock, const unsigned int xid);
 141 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
 142
 143 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
 144                                               struct file *file,
 145                                               struct tcon_link *tlink,
 146                                               __u32 oplock);
 147 extern int cifs_posix_open(char *full_path, struct inode **inode,
 148                            struct super_block *sb, int mode,
 149                            unsigned int f_flags, __u32 *oplock, __u16 *netfid,
 150                            unsigned int xid);
 151 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 152 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 153                                      FILE_UNIX_BASIC_INFO *info,
 154                                      struct cifs_sb_info *cifs_sb);
 155 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
 156                                         struct cifs_sb_info *);
 157 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 158 extern struct inode *cifs_iget(struct super_block *sb,
 159                                struct cifs_fattr *fattr);
 160
 161 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
 162                                FILE_ALL_INFO *data, struct super_block *sb,
 163                                int xid, const struct cifs_fid *fid);
 164 extern int cifs_get_inode_info_unix(struct inode **pinode,
 165                         const unsigned char *search_path,
 166                         struct super_block *sb, unsigned int xid);
 167 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
 168                               unsigned int xid, char *full_path, __u32 dosattr);
 169 extern int cifs_rename_pending_delete(const char *full_path,
 170                                       struct dentry *dentry,
 171                                       const unsigned int xid);
 172 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 173                               struct cifs_fattr *fattr, struct inode *inode,
 174                               const char *path, const struct cifs_fid *pfid);
 175 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 176                                         kuid_t, kgid_t);
 177 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 178                                         const char *, u32 *);
 179 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
 180                                                 const struct cifs_fid *, u32 *);
 181 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 182                                 const char *, int);
 183
 184 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 185 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 186                                  unsigned int to_read);
 187 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
 188                                       struct page *page, unsigned int to_read);
 189 extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 190                                struct cifs_sb_info *cifs_sb);
 191 extern int cifs_match_super(struct super_block *, void *);
 192 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 193 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 194                                             const char *devname);
 195 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
 196 extern void cifs_umount(struct cifs_sb_info *);
 197 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
 198 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
 199
 200 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
 201                                     __u64 length, __u8 type,
 202                                     struct cifsLockInfo **conf_lock,
 203                                     int rw_check);
 204 extern void cifs_add_pending_open(struct cifs_fid *fid,
 205                                   struct tcon_link *tlink,
 206                                   struct cifs_pending_open *open);
 207 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
 208                                          struct tcon_link *tlink,
 209                                          struct cifs_pending_open *open);
 210 extern void cifs_del_pending_open(struct cifs_pending_open *open);
 211 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
 212                                  int from_reconnect);
 213 extern void cifs_put_tcon(struct cifs_tcon *tcon);
 214
 215 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 216 extern void cifs_dfs_release_automount_timer(void);
 217 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 218 #define cifs_dfs_release_automount_timer()      do { } while (0)
 219 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 220
 221 void cifs_proc_init(void);
 222 void cifs_proc_clean(void);
 223
 224 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
 225 extern void cifs_free_llist(struct list_head *llist);
 226 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
 227
 228 extern int cifs_negotiate_protocol(const unsigned int xid,
 229                                    struct cifs_ses *ses);
 230 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 231                               struct nls_table *nls_info);
 232 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
 233 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 234
 235 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 236                     const char *tree, struct cifs_tcon *tcon,
 237                     const struct nls_table *);
 238
 239 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
 240                 const char *searchName, struct cifs_sb_info *cifs_sb,
 241                 __u16 *searchHandle, __u16 search_flags,
 242                 struct cifs_search_info *psrch_inf,
 243                 bool msearch);
 244
 245 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 246                 __u16 searchHandle, __u16 search_flags,
 247                 struct cifs_search_info *psrch_inf);
 248
 249 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 250                         const __u16 search_handle);
 251
 252 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 253                         u16 netfid, FILE_ALL_INFO *pFindData);
 254 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 255                             const char *search_Name, FILE_ALL_INFO *data,
 256                             int legacy /* whether to use old info level */,
 257                             const struct nls_table *nls_codepage, int remap);
 258 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
 259                                const char *search_name, FILE_ALL_INFO *data,
 260                                const struct nls_table *nls_codepage, int remap);
 261
 262 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 263                         u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 264 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
 265                         struct cifs_tcon *tcon,
 266                         const unsigned char *searchName,
 267                         FILE_UNIX_BASIC_INFO *pFindData,
 268                         const struct nls_table *nls_codepage, int remap);
 269
 270 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
 271                            const char *search_name,
 272                            struct dfs_info3_param **target_nodes,
 273                            unsigned int *num_of_nodes,
 274                            const struct nls_table *nls_codepage, int remap);
 275
 276 extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
 277                         const char *old_path,
 278                         const struct nls_table *nls_codepage,
 279                         unsigned int *num_referrals,
 280                         struct dfs_info3_param **referrals, int remap);
 281 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 282                                  struct cifs_sb_info *cifs_sb,
 283                                  struct smb_vol *vol);
 284 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 285                         struct kstatfs *FSData);
 286 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 287                         struct kstatfs *FSData);
 288 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 289                         __u64 cap);
 290
 291 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 292                         struct cifs_tcon *tcon);
 293 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 294 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 295 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 296                         struct kstatfs *FSData);
 297
 298 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 299                         const char *fileName, const FILE_BASIC_INFO *data,
 300                         const struct nls_table *nls_codepage,
 301                         int remap_special_chars);
 302 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 303                         const FILE_BASIC_INFO *data, __u16 fid,
 304                         __u32 pid_of_opener);
 305 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
 306                                      struct cifs_tcon *tcon,
 307                                      bool delete_file, __u16 fid,
 308                                      __u32 pid_of_opener);
 309 #if 0
 310 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
 311                         char *fileName, __u16 dos_attributes,
 312                         const struct nls_table *nls_codepage);
 313 #endif /* possibly unneeded function */
 314 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
 315                          const char *file_name, __u64 size,
 316                          struct cifs_sb_info *cifs_sb, bool set_allocation);
 317 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 318                               struct cifsFileInfo *cfile, __u64 size,
 319                               bool set_allocation);
 320
 321 struct cifs_unix_set_info_args {
 322         __u64   ctime;
 323         __u64   atime;
 324         __u64   mtime;
 325         __u64   mode;
 326         kuid_t  uid;
 327         kgid_t  gid;
 328         dev_t   device;
 329 };
 330
 331 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
 332                                   struct cifs_tcon *tcon,
 333                                   const struct cifs_unix_set_info_args *args,
 334                                   u16 fid, u32 pid_of_opener);
 335
 336 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
 337                                   struct cifs_tcon *tcon, const char *file_name,
 338                                   const struct cifs_unix_set_info_args *args,
 339                                   const struct nls_table *nls_codepage,
 340                                   int remap);
 341
 342 extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
 343                         const char *name, struct cifs_sb_info *cifs_sb);
 344 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 345                         const char *name, struct cifs_sb_info *cifs_sb);
 346 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 347                         const char *name, __u16 type,
 348                         const struct nls_table *nls_codepage,
 349                         int remap_special_chars);
 350 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 351                           const char *name, struct cifs_sb_info *cifs_sb);
 352 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
 353                          const char *from_name, const char *to_name,
 354                          struct cifs_sb_info *cifs_sb);
 355 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
 356                                  int netfid, const char *target_name,
 357                                  const struct nls_table *nls_codepage,
 358                                  int remap_special_chars);
 359 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
 360                               const char *from_name, const char *to_name,
 361                               struct cifs_sb_info *cifs_sb);
 362 extern int CIFSUnixCreateHardLink(const unsigned int xid,
 363                         struct cifs_tcon *tcon,
 364                         const char *fromName, const char *toName,
 365                         const struct nls_table *nls_codepage,
 366                         int remap_special_chars);
 367 extern int CIFSUnixCreateSymLink(const unsigned int xid,
 368                         struct cifs_tcon *tcon,
 369                         const char *fromName, const char *toName,
 370                         const struct nls_table *nls_codepage, int remap);
 371 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 372                         struct cifs_tcon *tcon,
 373                         const unsigned char *searchName, char **syminfo,
 374                         const struct nls_table *nls_codepage, int remap);
 375 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
 376                                __u16 fid, char **symlinkinfo,
 377                                const struct nls_table *nls_codepage);
 378 extern int CIFSSMB_set_compression(const unsigned int xid,
 379                                    struct cifs_tcon *tcon, __u16 fid);
 380 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
 381                      int *oplock, FILE_ALL_INFO *buf);
 382 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 383                         const char *fileName, const int disposition,
 384                         const int access_flags, const int omode,
 385                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 386                         const struct nls_table *nls_codepage, int remap);
 387 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
 388                         u32 posix_flags, __u64 mode, __u16 *netfid,
 389                         FILE_UNIX_BASIC_INFO *pRetData,
 390                         __u32 *pOplock, const char *name,
 391                         const struct nls_table *nls_codepage, int remap);
 392 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 393                         const int smb_file_id);
 394
 395 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 396                         const int smb_file_id);
 397
 398 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 399                         unsigned int *nbytes, char **buf,
 400                         int *return_buf_type);
 401 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 402                         unsigned int *nbytes, const char *buf);
 403 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 404                         unsigned int *nbytes, struct kvec *iov, const int nvec);
 405 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
 406                                  const char *search_name, __u64 *inode_number,
 407                                  const struct nls_table *nls_codepage,
 408                                  int remap);
 409
 410 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 411                       const __u16 netfid, const __u8 lock_type,
 412                       const __u32 num_unlock, const __u32 num_lock,
 413                       LOCKING_ANDX_RANGE *buf);
 414 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
 415                         const __u16 netfid, const __u32 netpid, const __u64 len,
 416                         const __u64 offset, const __u32 numUnlock,
 417                         const __u32 numLock, const __u8 lockType,
 418                         const bool waitFlag, const __u8 oplock_level);
 419 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 420                         const __u16 smb_file_id, const __u32 netpid,
 421                         const loff_t start_offset, const __u64 len,
 422                         struct file_lock *, const __u16 lock_type,
 423                         const bool waitFlag);
 424 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 425 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 426 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 427
 428 extern struct cifs_ses *sesInfoAlloc(void);
 429 extern void sesInfoFree(struct cifs_ses *);
 430 extern struct cifs_tcon *tconInfoAlloc(void);
 431 extern void tconInfoFree(struct cifs_tcon *);
 432
 433 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
 434                    __u32 *pexpected_response_sequence_number);
 435 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 436                           __u32 *);
 437 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 438 extern int cifs_verify_signature(struct smb_rqst *rqst,
 439                                  struct TCP_Server_Info *server,
 440                                 __u32 expected_sequence_number);
 441 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 442                         const struct nls_table *);
 443 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 444 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 445 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
 446 extern int calc_seckey(struct cifs_ses *);
 447 extern int generate_smb30signingkey(struct cifs_ses *);
 448 extern int generate_smb311signingkey(struct cifs_ses *);
 449
 450 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 451 extern int calc_lanman_hash(const char *password, const char *cryptkey,
 452                                 bool encrypt, char *lnm_session_key);
 453 #endif /* CIFS_WEAK_PW_HASH */
 454 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 455 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
 456                         const int notify_subdirs, const __u16 netfid,
 457                         __u32 filter, struct file *file, int multishot,
 458                         const struct nls_table *nls_codepage);
 459 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
 460 extern int CIFSSMBCopy(unsigned int xid,
 461                         struct cifs_tcon *source_tcon,
 462                         const char *fromName,
 463                         const __u16 target_tid,
 464                         const char *toName, const int flags,
 465                         const struct nls_table *nls_codepage,
 466                         int remap_special_chars);
 467 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 468                         const unsigned char *searchName,
 469                         const unsigned char *ea_name, char *EAData,
 470                         size_t bufsize, const struct nls_table *nls_codepage,
 471                         int remap_special_chars);
 472 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 473                 const char *fileName, const char *ea_name,
 474                 const void *ea_value, const __u16 ea_value_len,
 475                 const struct nls_table *nls_codepage, int remap_special_chars);
 476 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 477                         __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 478 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 479                         struct cifs_ntsd *, __u32, int);
 480 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 481                 const unsigned char *searchName,
 482                 char *acl_inf, const int buflen, const int acl_type,
 483                 const struct nls_table *nls_codepage, int remap_special_chars);
 484 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 485                 const unsigned char *fileName,
 486                 const char *local_acl, const int buflen, const int acl_type,
 487                 const struct nls_table *nls_codepage, int remap_special_chars);
 488 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 489                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 490 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 491 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
 492 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 493                               struct cifs_sb_info *cifs_sb,
 494                               struct cifs_fattr *fattr,
 495                               const unsigned char *path);
 496 extern int mdfour(unsigned char *, unsigned char *, int);
 497 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 498                         const struct nls_table *codepage);
 499 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 500                         unsigned char *p24);
 501
 502 void cifs_readdata_release(struct kref *refcount);
 503 int cifs_async_readv(struct cifs_readdata *rdata);
 504 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
 505
 506 int cifs_async_writev(struct cifs_writedata *wdata,
 507                       void (*release)(struct kref *kref));
 508 void cifs_writev_complete(struct work_struct *work);
 509 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 510                                                 work_func_t complete);
 511 void cifs_writedata_release(struct kref *refcount);
 512 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 513                           struct cifs_sb_info *cifs_sb,
 514                           const unsigned char *path, char *pbuf,
 515                           unsigned int *pbytes_read);
 516 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 517                            struct cifs_sb_info *cifs_sb,
 518                            const unsigned char *path, char *pbuf,
 519                            unsigned int *pbytes_written);
 520 int __cifs_calc_signature(struct smb_rqst *rqst,
 521                         struct TCP_Server_Info *server, char *signature,
 522                         struct shash_desc *shash);
 523 #endif                  /* _CIFSPROTO_H */