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