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 #include "trace.h"
  25 #ifdef CONFIG_CIFS_DFS_UPCALL
  26 #include "dfs_cache.h"
  27 #endif
  28
  29 struct statfs;
  30 struct smb_vol;
  31 struct smb_rqst;
  32
  33 /*
  34  *****************************************************************
  35  * All Prototypes
  36  *****************************************************************
  37  */
  38
  39 extern struct smb_hdr *cifs_buf_get(void);
  40 extern void cifs_buf_release(void *);
  41 extern struct smb_hdr *cifs_small_buf_get(void);
  42 extern void cifs_small_buf_release(void *);
  43 extern void free_rsp_buf(int, void *);
  44 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
  45                         unsigned int /* length */);
  46 extern unsigned int _get_xid(void);
  47 extern void _free_xid(unsigned int);
  48 #define get_xid()                                               \
  49 ({                                                              \
  50         unsigned int __xid = _get_xid();                                \
  51         cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n",      \
  52                  __func__, __xid,                                       \
  53                  from_kuid(&init_user_ns, current_fsuid()));            \
  54         trace_smb3_enter(__xid, __func__);                      \
  55         __xid;                                                  \
  56 })
  57
  58 #define free_xid(curr_xid)                                      \
  59 do {                                                            \
  60         _free_xid(curr_xid);                                    \
  61         cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n",      \
  62                  __func__, curr_xid, (int)rc);                  \
  63         if (rc)                                                 \
  64                 trace_smb3_exit_err(curr_xid, __func__, (int)rc);       \
  65         else                                                    \
  66                 trace_smb3_exit_done(curr_xid, __func__);       \
  67 } while (0)
  68 extern int init_cifs_idmap(void);
  69 extern void exit_cifs_idmap(void);
  70 extern int init_cifs_spnego(void);
  71 extern void exit_cifs_spnego(void);
  72 extern char *build_path_from_dentry(struct dentry *);
  73 extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
  74                                                     bool prefix);
  75 extern char *cifs_build_path_to_root(struct smb_vol *vol,
  76                                      struct cifs_sb_info *cifs_sb,
  77                                      struct cifs_tcon *tcon,
  78                                      int add_treename);
  79 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  80 extern char *cifs_compose_mount_options(const char *sb_mountdata,
  81                 const char *fullpath, const struct dfs_info3_param *ref,
  82                 char **devname);
  83 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  84 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
  85                                         struct TCP_Server_Info *server);
  86 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
  87 extern void cifs_delete_mid(struct mid_q_entry *mid);
  88 extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry);
  89 extern void cifs_wake_up_task(struct mid_q_entry *mid);
  90 extern int cifs_handle_standard(struct TCP_Server_Info *server,
  91                                 struct mid_q_entry *mid);
  92 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
  93 extern int cifs_call_async(struct TCP_Server_Info *server,
  94                         struct smb_rqst *rqst,
  95                         mid_receive_t *receive, mid_callback_t *callback,
  96                         mid_handle_t *handle, void *cbdata, const int flags,
  97                         const struct cifs_credits *exist_credits);
  98 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
  99                           struct smb_rqst *rqst, int *resp_buf_type,
 100                           const int flags, struct kvec *resp_iov);
 101 extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
 102                               const int flags, const int num_rqst,
 103                               struct smb_rqst *rqst, int *resp_buf_type,
 104                               struct kvec *resp_iov);
 105 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
 106                         struct smb_hdr * /* input */ ,
 107                         struct smb_hdr * /* out */ ,
 108                         int * /* bytes returned */ , const int);
 109 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
 110                             char *in_buf, int flags);
 111 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
 112                                 struct TCP_Server_Info *,
 113                                 struct smb_rqst *);
 114 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
 115                                                 struct smb_rqst *);
 116 extern int cifs_check_receive(struct mid_q_entry *mid,
 117                         struct TCP_Server_Info *server, bool log_error);
 118 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
 119                                  unsigned int size, unsigned int *num,
 120                                  struct cifs_credits *credits);
 121 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
 122                         struct kvec *, int /* nvec to send */,
 123                         int * /* type of buf returned */, const int flags,
 124                         struct kvec * /* resp vec */);
 125 extern int SendReceiveBlockingLock(const unsigned int xid,
 126                         struct cifs_tcon *ptcon,
 127                         struct smb_hdr *in_buf ,
 128                         struct smb_hdr *out_buf,
 129                         int *bytes_returned);
 130 extern int cifs_reconnect(struct TCP_Server_Info *server);
 131 extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
 132 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
 133 extern bool backup_cred(struct cifs_sb_info *);
 134 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
 135 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
 136                             unsigned int bytes_written);
 137 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
 138 extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
 139                                   int flags,
 140                                   struct cifsFileInfo **ret_file);
 141 extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
 142                                   int flags,
 143                                   struct cifsFileInfo **ret_file);
 144 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
 145 extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
 146                                   struct cifsFileInfo **ret_file);
 147 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
 148 extern int decode_negTokenInit(unsigned char *security_blob, int length,
 149                         struct TCP_Server_Info *server);
 150 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
 151 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
 152 extern int map_smb_to_linux_error(char *buf, bool logErr);
 153 extern void header_assemble(struct smb_hdr *, char /* command */ ,
 154                             const struct cifs_tcon *, int /* length of
 155                             fixed section (word count) in two byte units */);
 156 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
 157                                 struct cifs_ses *ses,
 158                                 void **request_buf);
 159 extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
 160                                 enum securityEnum requested);
 161 extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
 162                           const struct nls_table *nls_cp);
 163 extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 164 extern u64 cifs_UnixTimeToNT(struct timespec64);
 165 extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
 166                                       int offset);
 167 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
 168 extern int cifs_get_writer(struct cifsInodeInfo *cinode);
 169 extern void cifs_put_writer(struct cifsInodeInfo *cinode);
 170 extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
 171 extern int cifs_unlock_range(struct cifsFileInfo *cfile,
 172                              struct file_lock *flock, const unsigned int xid);
 173 extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
 174
 175 extern void cifs_down_write(struct rw_semaphore *sem);
 176 extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
 177                                               struct file *file,
 178                                               struct tcon_link *tlink,
 179                                               __u32 oplock);
 180 extern int cifs_posix_open(char *full_path, struct inode **inode,
 181                            struct super_block *sb, int mode,
 182                            unsigned int f_flags, __u32 *oplock, __u16 *netfid,
 183                            unsigned int xid);
 184 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
 185 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 186                                      FILE_UNIX_BASIC_INFO *info,
 187                                      struct cifs_sb_info *cifs_sb);
 188 extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
 189                                         struct cifs_sb_info *);
 190 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 191 extern struct inode *cifs_iget(struct super_block *sb,
 192                                struct cifs_fattr *fattr);
 193
 194 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
 195                                FILE_ALL_INFO *data, struct super_block *sb,
 196                                int xid, const struct cifs_fid *fid);
 197 extern int cifs_get_inode_info_unix(struct inode **pinode,
 198                         const unsigned char *search_path,
 199                         struct super_block *sb, unsigned int xid);
 200 extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
 201                               unsigned int xid, char *full_path, __u32 dosattr);
 202 extern int cifs_rename_pending_delete(const char *full_path,
 203                                       struct dentry *dentry,
 204                                       const unsigned int xid);
 205 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 206                               struct cifs_fattr *fattr, struct inode *inode,
 207                               bool get_mode_from_special_sid,
 208                               const char *path, const struct cifs_fid *pfid);
 209 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
 210                                         kuid_t, kgid_t);
 211 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
 212                                         const char *, u32 *);
 213 extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
 214                                                 const struct cifs_fid *, u32 *);
 215 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 216                                 const char *, int);
 217 extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
 218 extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
 219
 220 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
 221 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
 222                                  unsigned int to_read);
 223 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
 224                                         struct page *page,
 225                                         unsigned int page_offset,
 226                                         unsigned int to_read);
 227 extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
 228                                struct cifs_sb_info *cifs_sb);
 229 extern int cifs_match_super(struct super_block *, void *);
 230 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
 231 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
 232                                             const char *devname, bool is_smb3);
 233 extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol);
 234 extern void cifs_umount(struct cifs_sb_info *);
 235 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
 236 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
 237
 238 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
 239                                     __u64 length, __u8 type, __u16 flags,
 240                                     struct cifsLockInfo **conf_lock,
 241                                     int rw_check);
 242 extern void cifs_add_pending_open(struct cifs_fid *fid,
 243                                   struct tcon_link *tlink,
 244                                   struct cifs_pending_open *open);
 245 extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
 246                                          struct tcon_link *tlink,
 247                                          struct cifs_pending_open *open);
 248 extern void cifs_del_pending_open(struct cifs_pending_open *open);
 249 extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb_vol *vol);
 250 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
 251                                  int from_reconnect);
 252 extern void cifs_put_tcon(struct cifs_tcon *tcon);
 253
 254 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 255 extern void cifs_dfs_release_automount_timer(void);
 256 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 257 #define cifs_dfs_release_automount_timer()      do { } while (0)
 258 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
 259
 260 void cifs_proc_init(void);
 261 void cifs_proc_clean(void);
 262
 263 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
 264 extern void cifs_free_llist(struct list_head *llist);
 265 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
 266
 267 extern int cifs_negotiate_protocol(const unsigned int xid,
 268                                    struct cifs_ses *ses);
 269 extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 270                               struct nls_table *nls_info);
 271 extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
 272 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 273
 274 extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 275                     const char *tree, struct cifs_tcon *tcon,
 276                     const struct nls_table *);
 277
 278 extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
 279                 const char *searchName, struct cifs_sb_info *cifs_sb,
 280                 __u16 *searchHandle, __u16 search_flags,
 281                 struct cifs_search_info *psrch_inf,
 282                 bool msearch);
 283
 284 extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
 285                 __u16 searchHandle, __u16 search_flags,
 286                 struct cifs_search_info *psrch_inf);
 287
 288 extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
 289                         const __u16 search_handle);
 290
 291 extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 292                         u16 netfid, FILE_ALL_INFO *pFindData);
 293 extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 294                             const char *search_Name, FILE_ALL_INFO *data,
 295                             int legacy /* whether to use old info level */,
 296                             const struct nls_table *nls_codepage, int remap);
 297 extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
 298                                const char *search_name, FILE_ALL_INFO *data,
 299                                const struct nls_table *nls_codepage, int remap);
 300
 301 extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 302                         u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
 303 extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
 304                         struct cifs_tcon *tcon,
 305                         const unsigned char *searchName,
 306                         FILE_UNIX_BASIC_INFO *pFindData,
 307                         const struct nls_table *nls_codepage, int remap);
 308
 309 extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
 310                            const char *search_name,
 311                            struct dfs_info3_param **target_nodes,
 312                            unsigned int *num_of_nodes,
 313                            const struct nls_table *nls_codepage, int remap);
 314
 315 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
 316                                unsigned int *num_of_nodes,
 317                                struct dfs_info3_param **target_nodes,
 318                                const struct nls_table *nls_codepage, int remap,
 319                                const char *searchName, bool is_unicode);
 320 extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
 321                                  struct cifs_sb_info *cifs_sb,
 322                                  struct smb_vol *vol);
 323 extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 324                         struct kstatfs *FSData);
 325 extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 326                         struct kstatfs *FSData);
 327 extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 328                         __u64 cap);
 329
 330 extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
 331                         struct cifs_tcon *tcon);
 332 extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
 333 extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
 334 extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
 335                         struct kstatfs *FSData);
 336
 337 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
 338                         const char *fileName, const FILE_BASIC_INFO *data,
 339                         const struct nls_table *nls_codepage,
 340                         int remap_special_chars);
 341 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
 342                         const FILE_BASIC_INFO *data, __u16 fid,
 343                         __u32 pid_of_opener);
 344 extern int CIFSSMBSetFileDisposition(const unsigned int xid,
 345                                      struct cifs_tcon *tcon,
 346                                      bool delete_file, __u16 fid,
 347                                      __u32 pid_of_opener);
 348 #if 0
 349 extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
 350                         char *fileName, __u16 dos_attributes,
 351                         const struct nls_table *nls_codepage);
 352 #endif /* possibly unneeded function */
 353 extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
 354                          const char *file_name, __u64 size,
 355                          struct cifs_sb_info *cifs_sb, bool set_allocation);
 356 extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
 357                               struct cifsFileInfo *cfile, __u64 size,
 358                               bool set_allocation);
 359
 360 struct cifs_unix_set_info_args {
 361         __u64   ctime;
 362         __u64   atime;
 363         __u64   mtime;
 364         __u64   mode;
 365         kuid_t  uid;
 366         kgid_t  gid;
 367         dev_t   device;
 368 };
 369
 370 extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
 371                                   struct cifs_tcon *tcon,
 372                                   const struct cifs_unix_set_info_args *args,
 373                                   u16 fid, u32 pid_of_opener);
 374
 375 extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
 376                                   struct cifs_tcon *tcon, const char *file_name,
 377                                   const struct cifs_unix_set_info_args *args,
 378                                   const struct nls_table *nls_codepage,
 379                                   int remap);
 380
 381 extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
 382                         umode_t mode, struct cifs_tcon *tcon,
 383                         const char *name, struct cifs_sb_info *cifs_sb);
 384 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
 385                         const char *name, struct cifs_sb_info *cifs_sb);
 386 extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 387                         const char *name, __u16 type,
 388                         const struct nls_table *nls_codepage,
 389                         int remap_special_chars);
 390 extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
 391                           const char *name, struct cifs_sb_info *cifs_sb);
 392 extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
 393                          const char *from_name, const char *to_name,
 394                          struct cifs_sb_info *cifs_sb);
 395 extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
 396                                  int netfid, const char *target_name,
 397                                  const struct nls_table *nls_codepage,
 398                                  int remap_special_chars);
 399 extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
 400                               const char *from_name, const char *to_name,
 401                               struct cifs_sb_info *cifs_sb);
 402 extern int CIFSUnixCreateHardLink(const unsigned int xid,
 403                         struct cifs_tcon *tcon,
 404                         const char *fromName, const char *toName,
 405                         const struct nls_table *nls_codepage,
 406                         int remap_special_chars);
 407 extern int CIFSUnixCreateSymLink(const unsigned int xid,
 408                         struct cifs_tcon *tcon,
 409                         const char *fromName, const char *toName,
 410                         const struct nls_table *nls_codepage, int remap);
 411 extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 412                         struct cifs_tcon *tcon,
 413                         const unsigned char *searchName, char **syminfo,
 414                         const struct nls_table *nls_codepage, int remap);
 415 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
 416                                __u16 fid, char **symlinkinfo,
 417                                const struct nls_table *nls_codepage);
 418 extern int CIFSSMB_set_compression(const unsigned int xid,
 419                                    struct cifs_tcon *tcon, __u16 fid);
 420 extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
 421                      int *oplock, FILE_ALL_INFO *buf);
 422 extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
 423                         const char *fileName, const int disposition,
 424                         const int access_flags, const int omode,
 425                         __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 426                         const struct nls_table *nls_codepage, int remap);
 427 extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
 428                         u32 posix_flags, __u64 mode, __u16 *netfid,
 429                         FILE_UNIX_BASIC_INFO *pRetData,
 430                         __u32 *pOplock, const char *name,
 431                         const struct nls_table *nls_codepage, int remap);
 432 extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
 433                         const int smb_file_id);
 434
 435 extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
 436                         const int smb_file_id);
 437
 438 extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 439                         unsigned int *nbytes, char **buf,
 440                         int *return_buf_type);
 441 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 442                         unsigned int *nbytes, const char *buf);
 443 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 444                         unsigned int *nbytes, struct kvec *iov, const int nvec);
 445 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
 446                                  const char *search_name, __u64 *inode_number,
 447                                  const struct nls_table *nls_codepage,
 448                                  int remap);
 449
 450 extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 451                       const __u16 netfid, const __u8 lock_type,
 452                       const __u32 num_unlock, const __u32 num_lock,
 453                       LOCKING_ANDX_RANGE *buf);
 454 extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
 455                         const __u16 netfid, const __u32 netpid, const __u64 len,
 456                         const __u64 offset, const __u32 numUnlock,
 457                         const __u32 numLock, const __u8 lockType,
 458                         const bool waitFlag, const __u8 oplock_level);
 459 extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 460                         const __u16 smb_file_id, const __u32 netpid,
 461                         const loff_t start_offset, const __u64 len,
 462                         struct file_lock *, const __u16 lock_type,
 463                         const bool waitFlag);
 464 extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
 465 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
 466 extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 467
 468 extern struct cifs_ses *sesInfoAlloc(void);
 469 extern void sesInfoFree(struct cifs_ses *);
 470 extern struct cifs_tcon *tconInfoAlloc(void);
 471 extern void tconInfoFree(struct cifs_tcon *);
 472
 473 extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
 474                    __u32 *pexpected_response_sequence_number);
 475 extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 476                           __u32 *);
 477 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 478 extern int cifs_verify_signature(struct smb_rqst *rqst,
 479                                  struct TCP_Server_Info *server,
 480                                 __u32 expected_sequence_number);
 481 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
 482                         const struct nls_table *);
 483 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
 484 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
 485 extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
 486 extern int calc_seckey(struct cifs_ses *);
 487 extern int generate_smb30signingkey(struct cifs_ses *);
 488 extern int generate_smb311signingkey(struct cifs_ses *);
 489
 490 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 491 extern int calc_lanman_hash(const char *password, const char *cryptkey,
 492                                 bool encrypt, char *lnm_session_key);
 493 #endif /* CIFS_WEAK_PW_HASH */
 494 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
 495 extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
 496                         const int notify_subdirs, const __u16 netfid,
 497                         __u32 filter, struct file *file, int multishot,
 498                         const struct nls_table *nls_codepage);
 499 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
 500 extern int CIFSSMBCopy(unsigned int xid,
 501                         struct cifs_tcon *source_tcon,
 502                         const char *fromName,
 503                         const __u16 target_tid,
 504                         const char *toName, const int flags,
 505                         const struct nls_table *nls_codepage,
 506                         int remap_special_chars);
 507 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 508                         const unsigned char *searchName,
 509                         const unsigned char *ea_name, char *EAData,
 510                         size_t bufsize, struct cifs_sb_info *cifs_sb);
 511 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 512                 const char *fileName, const char *ea_name,
 513                 const void *ea_value, const __u16 ea_value_len,
 514                 const struct nls_table *nls_codepage,
 515                 struct cifs_sb_info *cifs_sb);
 516 extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
 517                         __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 518 extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
 519                         struct cifs_ntsd *, __u32, int);
 520 extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 521                 const unsigned char *searchName,
 522                 char *acl_inf, const int buflen, const int acl_type,
 523                 const struct nls_table *nls_codepage, int remap_special_chars);
 524 extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
 525                 const unsigned char *fileName,
 526                 const char *local_acl, const int buflen, const int acl_type,
 527                 const struct nls_table *nls_codepage, int remap_special_chars);
 528 extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
 529                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 530 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 531 extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
 532 extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 533                               struct cifs_sb_info *cifs_sb,
 534                               struct cifs_fattr *fattr,
 535                               const unsigned char *path);
 536 extern int mdfour(unsigned char *, unsigned char *, int);
 537 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
 538                         const struct nls_table *codepage);
 539 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
 540                         unsigned char *p24);
 541
 542 extern int
 543 cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data,
 544                        const char *devname, bool is_smb3);
 545 extern void
 546 cifs_cleanup_volume_info_contents(struct smb_vol *volume_info);
 547
 548 extern struct TCP_Server_Info *
 549 cifs_find_tcp_session(struct smb_vol *vol);
 550
 551 extern void cifs_put_smb_ses(struct cifs_ses *ses);
 552
 553 extern struct cifs_ses *
 554 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info);
 555
 556 void cifs_readdata_release(struct kref *refcount);
 557 int cifs_async_readv(struct cifs_readdata *rdata);
 558 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
 559
 560 int cifs_async_writev(struct cifs_writedata *wdata,
 561                       void (*release)(struct kref *kref));
 562 void cifs_writev_complete(struct work_struct *work);
 563 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
 564                                                 work_func_t complete);
 565 struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
 566                                                 work_func_t complete);
 567 void cifs_writedata_release(struct kref *refcount);
 568 int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 569                           struct cifs_sb_info *cifs_sb,
 570                           const unsigned char *path, char *pbuf,
 571                           unsigned int *pbytes_read);
 572 int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 573                            struct cifs_sb_info *cifs_sb,
 574                            const unsigned char *path, char *pbuf,
 575                            unsigned int *pbytes_written);
 576 int __cifs_calc_signature(struct smb_rqst *rqst,
 577                         struct TCP_Server_Info *server, char *signature,
 578                         struct shash_desc *shash);
 579 enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
 580                                         enum securityEnum);
 581 struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
 582 void cifs_aio_ctx_release(struct kref *refcount);
 583 int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
 584 void smb2_cached_lease_break(struct work_struct *work);
 585
 586 int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
 587                     struct sdesc **sdesc);
 588 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
 589
 590 extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
 591                                 unsigned int *len, unsigned int *offset);
 592 int cifs_try_adding_channels(struct cifs_ses *ses);
 593 int cifs_ses_add_channel(struct cifs_ses *ses,
 594                                 struct cifs_server_iface *iface);
 595 bool is_server_using_iface(struct TCP_Server_Info *server,
 596                            struct cifs_server_iface *iface);
 597 bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
 598
 599 void extract_unc_hostname(const char *unc, const char **h, size_t *len);
 600 int copy_path_name(char *dst, const char *src);
 601 int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
 602                                int resp_buftype,
 603                                struct cifs_search_info *srch_inf);
 604
 605 #ifdef CONFIG_CIFS_DFS_UPCALL
 606 static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
 607                                const char *old_path,
 608                                const struct nls_table *nls_codepage,
 609                                struct dfs_info3_param *referral, int remap)
 610 {
 611         return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
 612                               referral, NULL);
 613 }
 614 #endif
 615
 616 static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
 617 {
 618         if (cifs_sb && (backup_cred(cifs_sb)))
 619                 return options | CREATE_OPEN_BACKUP_INTENT;
 620         else
 621                 return options;
 622 }
 623
 624 #endif                  /* _CIFSPROTO_H */