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