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 void cifs_rqst_page_to_kvec(struct smb_rqst *rqst, unsigned int idx,
  41                                         struct kvec *iov);
  42 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
  43                         unsigned int /* length */);
  44 extern unsigned int _get_xid(void);
  45 extern void _free_xid(unsigned int);
  46 #define get_xid()                                               \
  47 ({                                                              \
  48         unsigned int __xid = _get_xid();                                \
  49         cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n",      \
  50                  __func__, __xid,                                       \
  51                  from_kuid(&init_user_ns, current_fsuid()));            \
  52         __xid;                                                  \
  53 })
  54
  55 #define free_xid(curr_xid)                                      \
  56 do {                                                            \
  57         _free_xid(curr_xid);                                    \
  58         cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n",      \
  59                  __func__, curr_xid, (int)rc);                          \
  60 } while (0)
  61 extern int init_cifs_idmap(void);
  62 extern void exit_cifs_idmap(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 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  68 extern char *cifs_compose_mount_options(const char *sb_mountdata,
  69                 const char *fullpath, const struct dfs_info3_param *ref,
  70                 char **devname);
  71 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  72 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  73                                         struct TCP_Server_Info *server);
  74 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  75 extern void cifs_delete_mid(struct mid_q_entry *mid);
  76 extern void cifs_wake_up_task(struct mid_q_entry *mid);
  77 extern int cifs_call_async(struct TCP_Server_Info *server,
  78                         struct smb_rqst *rqst,
  79                         mid_receive_t *receive, mid_callback_t *callback,
  80                         void *cbdata, const int flags);
  81 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
  82                         struct smb_hdr * /* input */ ,
  83                         struct smb_hdr * /* out */ ,
  84                         int * /* bytes returned */ , const int);
  85 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
  86                             char *in_buf, int flags);
  87 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
  88                                 struct smb_rqst *);
  89 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
  90                                                 struct smb_rqst *);
  91 extern int cifs_check_receive(struct mid_q_entry *mid,
  92                         struct TCP_Server_Info *server, bool log_error);
  93 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
  94                                  unsigned int size, unsigned int *num,
  95                                  unsigned int *credits);
  96 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
  97                         struct kvec *, int /* nvec to send */,
  98                         int * /* type of buf returned */ , const int flags);
  99 extern int SendReceiveBlockingLock(const unsigned int xid,
 100                         struct cifs_tcon *ptcon,
 101                         struct smb_hdr *in_buf ,
 102                         struct smb_hdr *out_buf,
 103                         int *bytes_returned);
 104 extern int cifs_reconnect(struct TCP_Server_Info *server);
 105 extern int checkSMB(char *buf, unsigned int length);
 106 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
 107 extern bool backup_cred(struct cifs_sb_info *);
 108 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
 109 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
 110                             unsigned int bytes_written);
 111 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
 112 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
 113 extern unsigned int smbCalcSize(void *buf);
 114 extern int decode_negTokenInit(unsigned char *security_blob, int length,
 115                         struct TCP_Server_Info *server);
 116 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
 117 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 118 extern int map_smb_to_linux_error(char *buf, bool logErr);
 119 extern void header_assemble(struct smb_hdr *, char /* command */ ,
 120                             const struct cifs_tcon *, int /* length of
 121                             fixed section (word count) in two byte units */);
 122 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 123                                 struct cifs_ses *ses,
 124                                 void **request_buf);
 125 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
 126                                 enum securityEnum requested);
 127 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 128                           const struct nls_table *nls_cp);
 129 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 130 extern u64 cifs_UnixTimeToNT(struct timespec);
 131 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
 132                                       int offset);
 133 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 134 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
 135 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
 136 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
 137 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
 138                              struct file_lock *flock, const unsigned int xid);
 139 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
 140
 141 extern void cifs_down_write(struct rw_semaphore *sem);
 142 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
 143                                               struct file *file,
 144                                               struct tcon_link *tlink,
 145                                               __u32 oplock);
 146 extern int cifs_posix_open(char *full_path, struct inode **inode,
 147                            struct super_block *sb, int mode,
 148                            unsigned int f_flags, __u32 *oplock, __u16 *netfid,
 149                            unsigned int xid);
 150 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 151 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 152                                      FILE_UNIX_BASIC_INFO *info,
 153                                      struct cifs_sb_info *cifs_sb);
 154 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
 155                                         struct cifs_sb_info *);
 156 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 157 extern struct inode *cifs_iget(struct super_block *sb,
 158                                struct cifs_fattr *fattr);
 159
 160 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
 161                                FILE_ALL_INFO *data, struct super_block *sb,
 162                                int xid, const struct cifs_fid *fid);
 163 extern int cifs_get_inode_info_unix(struct inode **pinode,
 164                         const unsigned char *search_path,
 165                         struct super_block *sb, unsigned int xid);
 166 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
 167                               unsigned int xid, char *full_path, __u32 dosattr);
 168 extern int cifs_rename_pending_delete(const char *full_path,
 169                                       struct dentry *dentry,
 170                                       const unsigned int xid);
 171 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 172                               struct cifs_fattr *fattr, struct inode *inode,
 173                               const char *path, const struct cifs_fid *pfid);
 174 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 175                                         kuid_t, kgid_t);
 176 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 177                                         const char *, u32 *);
 178 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
 179                                                 const struct cifs_fid *, u32 *);
 180 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 181                                 const char *, int);
 182
 183 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 184 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 185                      unsigned int to_read);
 186 extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
 187                 struct kvec *iov_orig, unsigned int nr_segs,
 188                 unsigned int to_read);
 189 extern void 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 bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
 199                                     __u64 length, __u8 type,
 200                                     struct cifsLockInfo **conf_lock,
 201                                     int rw_check);
 202 extern void cifs_add_pending_open(struct cifs_fid *fid,
 203                                   struct tcon_link *tlink,
 204                                   struct cifs_pending_open *open);
 205 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
 206                                          struct tcon_link *tlink,
 207                                          struct cifs_pending_open *open);
 208 extern void cifs_del_pending_open(struct cifs_pending_open *open);
 209 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
 210                                  int from_reconnect);
 211 extern void cifs_put_tcon(struct cifs_tcon *tcon);
 212
 213 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 214 extern void cifs_dfs_release_automount_timer(void);
 215 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 216 #define cifs_dfs_release_automount_timer()      do { } while (0)
 217 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 218
 219 void cifs_proc_init(void);
 220 void cifs_proc_clean(void);
 221
 222 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
 223 extern void cifs_free_llist(struct list_head *llist);
 224 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
 225
 226 extern int cifs_negotiate_protocol(const unsigned int xid,
 227                                    struct cifs_ses *ses);
 228 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 229                               struct nls_table *nls_info);
 230 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
 231 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 232
 233 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 234                     const char *tree, struct cifs_tcon *tcon,
 235                     const struct nls_table *);
 236
 237 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
 238                 const char *searchName, struct cifs_sb_info *cifs_sb,
 239                 __u16 *searchHandle, __u16 search_flags,
 240                 struct cifs_search_info *psrch_inf,
 241                 bool msearch);
 242
 243 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 244                 __u16 searchHandle, __u16 search_flags,
 245                 struct cifs_search_info *psrch_inf);
 246
 247 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 248                         const __u16 search_handle);
 249
 250 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 251                         u16 netfid, FILE_ALL_INFO *pFindData);
 252 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 253                             const char *search_Name, FILE_ALL_INFO *data,
 254                             int legacy /* whether to use old info level */,
 255                             const struct nls_table *nls_codepage, int remap);
 256 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
 257                                const char *search_name, FILE_ALL_INFO *data,
 258                                const struct nls_table *nls_codepage, int remap);
 259
 260 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 261                         u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 262 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
 263                         struct cifs_tcon *tcon,
 264                         const unsigned char *searchName,
 265                         FILE_UNIX_BASIC_INFO *pFindData,
 266                         const struct nls_table *nls_codepage, int remap);
 267
 268 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
 269                            const char *search_name,
 270                            struct dfs_info3_param **target_nodes,
 271                            unsigned int *num_of_nodes,
 272                            const struct nls_table *nls_codepage, int remap);
 273
 274 extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
 275                         const char *old_path,
 276                         const struct nls_table *nls_codepage,
 277                         unsigned int *num_referrals,
 278                         struct dfs_info3_param **referrals, int remap);
 279 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 280                                  struct cifs_sb_info *cifs_sb,
 281                                  struct smb_vol *vol);
 282 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 283                         struct kstatfs *FSData);
 284 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 285                         struct kstatfs *FSData);
 286 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 287                         __u64 cap);
 288
 289 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 290                         struct cifs_tcon *tcon);
 291 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 292 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 293 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 294                         struct kstatfs *FSData);
 295
 296 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 297                         const char *fileName, const FILE_BASIC_INFO *data,
 298                         const struct nls_table *nls_codepage,
 299                         int remap_special_chars);
 300 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 301                         const FILE_BASIC_INFO *data, __u16 fid,
 302                         __u32 pid_of_opener);
 303 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
 304                                      struct cifs_tcon *tcon,
 305                                      bool delete_file, __u16 fid,
 306                                      __u32 pid_of_opener);
 307 #if 0
 308 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
 309                         char *fileName, __u16 dos_attributes,
 310                         const struct nls_table *nls_codepage);
 311 #endif /* possibly unneeded function */
 312 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
 313                          const char *file_name, __u64 size,
 314                          struct cifs_sb_info *cifs_sb, bool set_allocation);
 315 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 316                               struct cifsFileInfo *cfile, __u64 size,
 317                               bool set_allocation);
 318
 319 struct cifs_unix_set_info_args {
 320         __u64   ctime;
 321         __u64   atime;
 322         __u64   mtime;
 323         __u64   mode;
 324         kuid_t  uid;
 325         kgid_t  gid;
 326         dev_t   device;
 327 };
 328
 329 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
 330                                   struct cifs_tcon *tcon,
 331                                   const struct cifs_unix_set_info_args *args,
 332                                   u16 fid, u32 pid_of_opener);
 333
 334 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
 335                                   struct cifs_tcon *tcon, const char *file_name,
 336                                   const struct cifs_unix_set_info_args *args,
 337                                   const struct nls_table *nls_codepage,
 338                                   int remap);
 339
 340 extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
 341                         const char *name, struct cifs_sb_info *cifs_sb);
 342 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 343                         const char *name, struct cifs_sb_info *cifs_sb);
 344 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 345                         const char *name, __u16 type,
 346                         const struct nls_table *nls_codepage,
 347                         int remap_special_chars);
 348 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 349                           const char *name, struct cifs_sb_info *cifs_sb);
 350 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
 351                          const char *from_name, const char *to_name,
 352                          struct cifs_sb_info *cifs_sb);
 353 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
 354                                  int netfid, const char *target_name,
 355                                  const struct nls_table *nls_codepage,
 356                                  int remap_special_chars);
 357 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
 358                               const char *from_name, const char *to_name,
 359                               struct cifs_sb_info *cifs_sb);
 360 extern int CIFSUnixCreateHardLink(const unsigned int xid,
 361                         struct cifs_tcon *tcon,
 362                         const char *fromName, const char *toName,
 363                         const struct nls_table *nls_codepage,
 364                         int remap_special_chars);
 365 extern int CIFSUnixCreateSymLink(const unsigned int xid,
 366                         struct cifs_tcon *tcon,
 367                         const char *fromName, const char *toName,
 368                         const struct nls_table *nls_codepage, int remap);
 369 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 370                         struct cifs_tcon *tcon,
 371                         const unsigned char *searchName, char **syminfo,
 372                         const struct nls_table *nls_codepage, int remap);
 373 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
 374                                __u16 fid, char **symlinkinfo,
 375                                const struct nls_table *nls_codepage);
 376 extern int CIFSSMB_set_compression(const unsigned int xid,
 377                                    struct cifs_tcon *tcon, __u16 fid);
 378 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
 379                      int *oplock, FILE_ALL_INFO *buf);
 380 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 381                         const char *fileName, const int disposition,
 382                         const int access_flags, const int omode,
 383                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 384                         const struct nls_table *nls_codepage, int remap);
 385 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
 386                         u32 posix_flags, __u64 mode, __u16 *netfid,
 387                         FILE_UNIX_BASIC_INFO *pRetData,
 388                         __u32 *pOplock, const char *name,
 389                         const struct nls_table *nls_codepage, int remap);
 390 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 391                         const int smb_file_id);
 392
 393 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 394                         const int smb_file_id);
 395
 396 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 397                         unsigned int *nbytes, char **buf,
 398                         int *return_buf_type);
 399 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 400                         unsigned int *nbytes, const char *buf,
 401                         const char __user *ubuf, const int long_op);
 402 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 403                         unsigned int *nbytes, struct kvec *iov, const int nvec);
 404 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
 405                                  const char *search_name, __u64 *inode_number,
 406                                  const struct nls_table *nls_codepage,
 407                                  int remap);
 408
 409 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 410                       const __u16 netfid, const __u8 lock_type,
 411                       const __u32 num_unlock, const __u32 num_lock,
 412                       LOCKING_ANDX_RANGE *buf);
 413 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
 414                         const __u16 netfid, const __u32 netpid, const __u64 len,
 415                         const __u64 offset, const __u32 numUnlock,
 416                         const __u32 numLock, const __u8 lockType,
 417                         const bool waitFlag, const __u8 oplock_level);
 418 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 419                         const __u16 smb_file_id, const __u32 netpid,
 420                         const loff_t start_offset, const __u64 len,
 421                         struct file_lock *, const __u16 lock_type,
 422                         const bool waitFlag);
 423 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 424 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 425 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 426
 427 extern struct cifs_ses *sesInfoAlloc(void);
 428 extern void sesInfoFree(struct cifs_ses *);
 429 extern struct cifs_tcon *tconInfoAlloc(void);
 430 extern void tconInfoFree(struct cifs_tcon *);
 431
 432 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
 433                    __u32 *pexpected_response_sequence_number);
 434 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 435                           __u32 *);
 436 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 437 extern int cifs_verify_signature(struct smb_rqst *rqst,
 438                                  struct TCP_Server_Info *server,
 439                                 __u32 expected_sequence_number);
 440 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 441                         const struct nls_table *);
 442 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 443 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 444 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
 445 extern int calc_seckey(struct cifs_ses *);
 446 extern int generate_smb3signingkey(struct cifs_ses *);
 447
 448 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 449 extern int calc_lanman_hash(const char *password, const char *cryptkey,
 450                                 bool encrypt, char *lnm_session_key);
 451 #endif /* CIFS_WEAK_PW_HASH */
 452 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 453 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
 454                         const int notify_subdirs, const __u16 netfid,
 455                         __u32 filter, struct file *file, int multishot,
 456                         const struct nls_table *nls_codepage);
 457 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
 458 extern int CIFSSMBCopy(unsigned int xid,
 459                         struct cifs_tcon *source_tcon,
 460                         const char *fromName,
 461                         const __u16 target_tid,
 462                         const char *toName, const int flags,
 463                         const struct nls_table *nls_codepage,
 464                         int remap_special_chars);
 465 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 466                         const unsigned char *searchName,
 467                         const unsigned char *ea_name, char *EAData,
 468                         size_t bufsize, const struct nls_table *nls_codepage,
 469                         int remap_special_chars);
 470 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 471                 const char *fileName, const char *ea_name,
 472                 const void *ea_value, const __u16 ea_value_len,
 473                 const struct nls_table *nls_codepage, int remap_special_chars);
 474 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 475                         __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 476 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 477                         struct cifs_ntsd *, __u32, int);
 478 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 479                 const unsigned char *searchName,
 480                 char *acl_inf, const int buflen, const int acl_type,
 481                 const struct nls_table *nls_codepage, int remap_special_chars);
 482 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 483                 const unsigned char *fileName,
 484                 const char *local_acl, const int buflen, const int acl_type,
 485                 const struct nls_table *nls_codepage, int remap_special_chars);
 486 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 487                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 488 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 489 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
 490 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 491                               struct cifs_sb_info *cifs_sb,
 492                               struct cifs_fattr *fattr,
 493                               const unsigned char *path);
 494 extern int mdfour(unsigned char *, unsigned char *, int);
 495 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 496                         const struct nls_table *codepage);
 497 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 498                         unsigned char *p24);
 499
 500 void cifs_readdata_release(struct kref *refcount);
 501 int cifs_async_readv(struct cifs_readdata *rdata);
 502 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
 503
 504 int cifs_async_writev(struct cifs_writedata *wdata,
 505                       void (*release)(struct kref *kref));
 506 void cifs_writev_complete(struct work_struct *work);
 507 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 508                                                 work_func_t complete);
 509 void cifs_writedata_release(struct kref *refcount);
 510 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 511                           struct cifs_sb_info *cifs_sb,
 512                           const unsigned char *path, char *pbuf,
 513                           unsigned int *pbytes_read);
 514 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 515                            struct cifs_sb_info *cifs_sb,
 516                            const unsigned char *path, char *pbuf,
 517                            unsigned int *pbytes_written);
 518 #endif                  /* _CIFSPROTO_H */