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