linux/fs/cifs/cifsproto.h
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   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
  25struct statfs;
  26struct smb_vol;
  27struct smb_rqst;
  28
  29/*
  30 *****************************************************************
  31 * All Prototypes
  32 *****************************************************************
  33 */
  34
  35extern struct smb_hdr *cifs_buf_get(void);
  36extern void cifs_buf_release(void *);
  37extern struct smb_hdr *cifs_small_buf_get(void);
  38extern void cifs_small_buf_release(void *);
  39extern void free_rsp_buf(int, void *);
  40extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
  41                        unsigned int /* length */);
  42extern unsigned int _get_xid(void);
  43extern 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)                                      \
  54do {                                                            \
  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)
  59extern int init_cifs_idmap(void);
  60extern void exit_cifs_idmap(void);
  61extern int init_cifs_spnego(void);
  62extern void exit_cifs_spnego(void);
  63extern char *build_path_from_dentry(struct dentry *);
  64extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
  65                                                    bool prefix);
  66extern 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);
  70extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  71extern 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);*/
  75extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  76                                        struct TCP_Server_Info *server);
  77extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  78extern void cifs_delete_mid(struct mid_q_entry *mid);
  79extern void cifs_wake_up_task(struct mid_q_entry *mid);
  80extern int cifs_handle_standard(struct TCP_Server_Info *server,
  81                                struct mid_q_entry *mid);
  82extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
  83extern 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);
  87extern 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);
  90extern 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);
  94extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
  95                            char *in_buf, int flags);
  96extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
  97                                struct smb_rqst *);
  98extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
  99                                                struct smb_rqst *);
 100extern int cifs_check_receive(struct mid_q_entry *mid,
 101                        struct TCP_Server_Info *server, bool log_error);
 102extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
 103                                 unsigned int size, unsigned int *num,
 104                                 unsigned int *credits);
 105extern 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 */);
 109extern 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);
 114extern int cifs_reconnect(struct TCP_Server_Info *server);
 115extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
 116extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
 117extern bool backup_cred(struct cifs_sb_info *);
 118extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
 119extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
 120                            unsigned int bytes_written);
 121extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
 122extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
 123extern unsigned int smbCalcSize(void *buf);
 124extern int decode_negTokenInit(unsigned char *security_blob, int length,
 125                        struct TCP_Server_Info *server);
 126extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
 127extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 128extern int map_smb_to_linux_error(char *buf, bool logErr);
 129extern 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 */);
 132extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 133                                struct cifs_ses *ses,
 134                                void **request_buf);
 135extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
 136                                enum securityEnum requested);
 137extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 138                          const struct nls_table *nls_cp);
 139extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 140extern u64 cifs_UnixTimeToNT(struct timespec);
 141extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
 142                                      int offset);
 143extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 144extern int cifs_get_writer(struct cifsInodeInfo *cinode);
 145extern void cifs_put_writer(struct cifsInodeInfo *cinode);
 146extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
 147extern int cifs_unlock_range(struct cifsFileInfo *cfile,
 148                             struct file_lock *flock, const unsigned int xid);
 149extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
 150
 151extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
 152                                              struct file *file,
 153                                              struct tcon_link *tlink,
 154                                              __u32 oplock);
 155extern 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);
 159void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 160extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 161                                     FILE_UNIX_BASIC_INFO *info,
 162                                     struct cifs_sb_info *cifs_sb);
 163extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
 164                                        struct cifs_sb_info *);
 165extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 166extern struct inode *cifs_iget(struct super_block *sb,
 167                               struct cifs_fattr *fattr);
 168
 169extern 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);
 172extern int cifs_get_inode_info_unix(struct inode **pinode,
 173                        const unsigned char *search_path,
 174                        struct super_block *sb, unsigned int xid);
 175extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
 176                              unsigned int xid, char *full_path, __u32 dosattr);
 177extern int cifs_rename_pending_delete(const char *full_path,
 178                                      struct dentry *dentry,
 179                                      const unsigned int xid);
 180extern 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);
 183extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 184                                        kuid_t, kgid_t);
 185extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 186                                        const char *, u32 *);
 187extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
 188                                                const struct cifs_fid *, u32 *);
 189extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 190                                const char *, int);
 191
 192extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 193extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 194                                 unsigned int to_read);
 195extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
 196                                      struct page *page, unsigned int to_read);
 197extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 198                               struct cifs_sb_info *cifs_sb);
 199extern int cifs_match_super(struct super_block *, void *);
 200extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 201extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 202                                            const char *devname);
 203extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
 204extern void cifs_umount(struct cifs_sb_info *);
 205extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
 206extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
 207
 208extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
 209                                    __u64 length, __u8 type,
 210                                    struct cifsLockInfo **conf_lock,
 211                                    int rw_check);
 212extern void cifs_add_pending_open(struct cifs_fid *fid,
 213                                  struct tcon_link *tlink,
 214                                  struct cifs_pending_open *open);
 215extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
 216                                         struct tcon_link *tlink,
 217                                         struct cifs_pending_open *open);
 218extern void cifs_del_pending_open(struct cifs_pending_open *open);
 219extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
 220                                 int from_reconnect);
 221extern void cifs_put_tcon(struct cifs_tcon *tcon);
 222
 223#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 224extern 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
 229void cifs_proc_init(void);
 230void cifs_proc_clean(void);
 231
 232extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
 233extern void cifs_free_llist(struct list_head *llist);
 234extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
 235
 236extern int cifs_negotiate_protocol(const unsigned int xid,
 237                                   struct cifs_ses *ses);
 238extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 239                              struct nls_table *nls_info);
 240extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
 241extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 242
 243extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 244                    const char *tree, struct cifs_tcon *tcon,
 245                    const struct nls_table *);
 246
 247extern 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
 253extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 254                __u16 searchHandle, __u16 search_flags,
 255                struct cifs_search_info *psrch_inf);
 256
 257extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 258                        const __u16 search_handle);
 259
 260extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 261                        u16 netfid, FILE_ALL_INFO *pFindData);
 262extern 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);
 266extern 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
 270extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 271                        u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 272extern 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
 278extern 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
 284extern 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);
 289extern 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);
 294extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 295                                 struct cifs_sb_info *cifs_sb,
 296                                 struct smb_vol *vol);
 297extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 298                        struct kstatfs *FSData);
 299extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 300                        struct kstatfs *FSData);
 301extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 302                        __u64 cap);
 303
 304extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 305                        struct cifs_tcon *tcon);
 306extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 307extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 308extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 309                        struct kstatfs *FSData);
 310
 311extern 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);
 315extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 316                        const FILE_BASIC_INFO *data, __u16 fid,
 317                        __u32 pid_of_opener);
 318extern 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
 323extern 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 */
 327extern 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);
 330extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 331                              struct cifsFileInfo *cfile, __u64 size,
 332                              bool set_allocation);
 333
 334struct 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
 344extern 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
 349extern 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
 355extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
 356                        const char *name, struct cifs_sb_info *cifs_sb);
 357extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 358                        const char *name, struct cifs_sb_info *cifs_sb);
 359extern 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);
 363extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 364                          const char *name, struct cifs_sb_info *cifs_sb);
 365extern 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);
 368extern 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);
 372extern 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);
 375extern 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);
 380extern 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);
 384extern 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);
 388extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
 389                               __u16 fid, char **symlinkinfo,
 390                               const struct nls_table *nls_codepage);
 391extern int CIFSSMB_set_compression(const unsigned int xid,
 392                                   struct cifs_tcon *tcon, __u16 fid);
 393extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
 394                     int *oplock, FILE_ALL_INFO *buf);
 395extern 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);
 400extern 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);
 405extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 406                        const int smb_file_id);
 407
 408extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 409                        const int smb_file_id);
 410
 411extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 412                        unsigned int *nbytes, char **buf,
 413                        int *return_buf_type);
 414extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 415                        unsigned int *nbytes, const char *buf);
 416extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 417                        unsigned int *nbytes, struct kvec *iov, const int nvec);
 418extern 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
 423extern 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);
 427extern 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);
 432extern 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);
 437extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 438extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 439extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 440
 441extern struct cifs_ses *sesInfoAlloc(void);
 442extern void sesInfoFree(struct cifs_ses *);
 443extern struct cifs_tcon *tconInfoAlloc(void);
 444extern void tconInfoFree(struct cifs_tcon *);
 445
 446extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
 447                   __u32 *pexpected_response_sequence_number);
 448extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 449                          __u32 *);
 450extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 451extern int cifs_verify_signature(struct smb_rqst *rqst,
 452                                 struct TCP_Server_Info *server,
 453                                __u32 expected_sequence_number);
 454extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 455                        const struct nls_table *);
 456extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 457extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 458extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
 459extern int calc_seckey(struct cifs_ses *);
 460extern int generate_smb30signingkey(struct cifs_ses *);
 461extern int generate_smb311signingkey(struct cifs_ses *);
 462
 463#ifdef CONFIG_CIFS_WEAK_PW_HASH
 464extern 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 */
 468extern 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 */
 473extern 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);
 480extern 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);
 484extern 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,
 488                struct cifs_sb_info *cifs_sb);
 489extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 490                        __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 491extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 492                        struct cifs_ntsd *, __u32, int);
 493extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 494                const unsigned char *searchName,
 495                char *acl_inf, const int buflen, const int acl_type,
 496                const struct nls_table *nls_codepage, int remap_special_chars);
 497extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 498                const unsigned char *fileName,
 499                const char *local_acl, const int buflen, const int acl_type,
 500                const struct nls_table *nls_codepage, int remap_special_chars);
 501extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 502                        const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 503extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 504extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
 505extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 506                              struct cifs_sb_info *cifs_sb,
 507                              struct cifs_fattr *fattr,
 508                              const unsigned char *path);
 509extern int mdfour(unsigned char *, unsigned char *, int);
 510extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 511                        const struct nls_table *codepage);
 512extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 513                        unsigned char *p24);
 514
 515void cifs_readdata_release(struct kref *refcount);
 516int cifs_async_readv(struct cifs_readdata *rdata);
 517int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
 518
 519int cifs_async_writev(struct cifs_writedata *wdata,
 520                      void (*release)(struct kref *kref));
 521void cifs_writev_complete(struct work_struct *work);
 522struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 523                                                work_func_t complete);
 524void cifs_writedata_release(struct kref *refcount);
 525int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 526                          struct cifs_sb_info *cifs_sb,
 527                          const unsigned char *path, char *pbuf,
 528                          unsigned int *pbytes_read);
 529int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 530                           struct cifs_sb_info *cifs_sb,
 531                           const unsigned char *path, char *pbuf,
 532                           unsigned int *pbytes_written);
 533int __cifs_calc_signature(struct smb_rqst *rqst,
 534                        struct TCP_Server_Info *server, char *signature,
 535                        struct shash_desc *shash);
 536enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
 537                                        enum securityEnum);
 538struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
 539void cifs_aio_ctx_release(struct kref *refcount);
 540int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
 541#endif                  /* _CIFSPROTO_H */
 542