fs/cifs/cifsproto.h

   1 /*
   2  *   fs/cifs/cifsproto.h
   3  *
   4  *   Copyright (c) International Business Machines  Corp., 2002,2007
   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
  28 /*
  29  *****************************************************************
  30  * All Prototypes
  31  *****************************************************************
  32  */
  33
  34 extern struct smb_hdr *cifs_buf_get(void);
  35 extern void cifs_buf_release(void *);
  36 extern struct smb_hdr *cifs_small_buf_get(void);
  37 extern void cifs_small_buf_release(void *);
  38 extern int smb_send(struct socket *, struct smb_hdr *,
  39                         unsigned int /* length */ , struct sockaddr *);
  40 extern unsigned int _GetXid(void);
  41 extern void _FreeXid(unsigned int);
  42 #define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__FUNCTION__, xid,current->fsuid));
  43 #define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__FUNCTION__,curr_xid,(int)rc));}
  44 extern char *build_path_from_dentry(struct dentry *);
  45 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  46 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
  47 extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
  48                         struct smb_hdr * /* input */ ,
  49                         struct smb_hdr * /* out */ ,
  50                         int * /* bytes returned */ , const int long_op);
  51 extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
  52                         struct smb_hdr *in_buf, int flags);
  53 extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
  54                         struct kvec *, int /* nvec to send */,
  55                         int * /* type of buf returned */ , const int flags);
  56 extern int SendReceiveBlockingLock(const unsigned int /* xid */ ,
  57                                         struct cifsTconInfo *,
  58                                 struct smb_hdr * /* input */ ,
  59                                 struct smb_hdr * /* out */ ,
  60                                 int * /* bytes returned */);
  61 extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
  62 extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
  63 extern int is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
  64 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
  65 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
  66 extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
  67 extern int decode_negTokenInit(unsigned char *security_blob, int length,
  68                         enum securityEnum *secType);
  69 extern int cifs_inet_pton(int, char * source, void *dst);
  70 extern int map_smb_to_linux_error(struct smb_hdr *smb);
  71 extern void header_assemble(struct smb_hdr *, char /* command */ ,
  72                             const struct cifsTconInfo *, int /* length of
  73                             fixed section (word count) in two byte units */);
  74 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
  75                                 struct cifsSesInfo *ses,
  76                                 void ** request_buf);
  77 extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
  78                              const int stage,
  79                              const struct nls_table *nls_cp);
  80 extern __u16 GetNextMid(struct TCP_Server_Info *server);
  81 extern struct oplock_q_entry * AllocOplockQEntry(struct inode *, u16,
  82                                                  struct cifsTconInfo *);
  83 extern void DeleteOplockQEntry(struct oplock_q_entry *);
  84 extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
  85 extern u64 cifs_UnixTimeToNT(struct timespec);
  86 extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);
  87 extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
  88
  89 extern int cifs_get_inode_info(struct inode **pinode,
  90                         const unsigned char *search_path,
  91                         FILE_ALL_INFO * pfile_info,
  92                         struct super_block *sb, int xid);
  93 extern int cifs_get_inode_info_unix(struct inode **pinode,
  94                         const unsigned char *search_path,
  95                         struct super_block *sb,int xid);
  96
  97 extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
  98                         const char *);
  99 extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
 100 void cifs_proc_init(void);
 101 void cifs_proc_clean(void);
 102
 103 extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
 104                         struct nls_table * nls_info);
 105 extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses);
 106
 107 extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 108                         const char *tree, struct cifsTconInfo *tcon,
 109                         const struct nls_table *);
 110
 111 extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
 112                 const char *searchName, const struct nls_table *nls_codepage,
 113                 __u16 *searchHandle, struct cifs_search_info * psrch_inf,
 114                 int map, const char dirsep);
 115
 116 extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
 117                 __u16 searchHandle, struct cifs_search_info * psrch_inf);
 118
 119 extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
 120                         const __u16 search_handle);
 121
 122 extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
 123                         const unsigned char *searchName,
 124                         FILE_ALL_INFO * findData,
 125                         int legacy /* whether to use old info level */,
 126                         const struct nls_table *nls_codepage, int remap);
 127 extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
 128                         const unsigned char *searchName,
 129                         FILE_ALL_INFO * findData,
 130                         const struct nls_table *nls_codepage, int remap);
 131
 132 extern int CIFSSMBUnixQPathInfo(const int xid,
 133                         struct cifsTconInfo *tcon,
 134                         const unsigned char *searchName,
 135                         FILE_UNIX_BASIC_INFO * pFindData,
 136                         const struct nls_table *nls_codepage, int remap);
 137
 138 extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
 139                         const unsigned char *searchName,
 140                         unsigned char **targetUNCs,
 141                         unsigned int *number_of_UNC_in_array,
 142                         const struct nls_table *nls_codepage, int remap);
 143
 144 extern int connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
 145                         const char *old_path,
 146                         const struct nls_table *nls_codepage, int remap);
 147 extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
 148                         const char *old_path,
 149                         const struct nls_table *nls_codepage,
 150                         unsigned int *pnum_referrals,
 151                         unsigned char ** preferrals,
 152                         int remap);
 153 extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
 154                                  struct super_block * sb, struct smb_vol * vol);
 155 extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
 156                         struct kstatfs *FSData);
 157 extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon,
 158                         struct kstatfs *FSData);
 159 extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon,
 160                         __u64 cap);
 161
 162 extern int CIFSSMBQFSAttributeInfo(const int xid,
 163                         struct cifsTconInfo *tcon);
 164 extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon);
 165 extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
 166 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
 167                         struct kstatfs *FSData);
 168
 169 extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon,
 170                         const char *fileName, const FILE_BASIC_INFO * data,
 171                         const struct nls_table *nls_codepage,
 172                         int remap_special_chars);
 173 extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
 174                         const FILE_BASIC_INFO * data, __u16 fid);
 175 #if 0
 176 extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
 177                         char *fileName, __u16 dos_attributes,
 178                         const struct nls_table *nls_codepage);
 179 #endif /* possibly unneeded function */
 180 extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
 181                         const char *fileName, __u64 size,
 182                         int setAllocationSizeFlag,
 183                         const struct nls_table *nls_codepage,
 184                         int remap_special_chars);
 185 extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
 186                          __u64 size, __u16 fileHandle,__u32 opener_pid,
 187                         int AllocSizeFlag);
 188 extern int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *pTcon,
 189                         char *full_path, __u64 mode, __u64 uid,
 190                         __u64 gid, dev_t dev,
 191                         const struct nls_table *nls_codepage,
 192                         int remap_special_chars);
 193
 194 extern int CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon,
 195                         const char *newName,
 196                         const struct nls_table *nls_codepage,
 197                         int remap_special_chars);
 198 extern int CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon,
 199                         const char *name, const struct nls_table *nls_codepage,
 200                         int remap_special_chars);
 201
 202 extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon,
 203                         const char *name,
 204                         const struct nls_table *nls_codepage,
 205                         int remap_special_chars);
 206 extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
 207                         const char *fromName, const char *toName,
 208                         const struct nls_table *nls_codepage,
 209                         int remap_special_chars);
 210 extern int CIFSSMBRenameOpenFile(const int xid,struct cifsTconInfo *pTcon,
 211                         int netfid, char * target_name,
 212                         const struct nls_table *nls_codepage,
 213                         int remap_special_chars);
 214 extern int CIFSCreateHardLink(const int xid,
 215                         struct cifsTconInfo *tcon,
 216                         const char *fromName, const char *toName,
 217                         const struct nls_table *nls_codepage,
 218                         int remap_special_chars);
 219 extern int CIFSUnixCreateHardLink(const int xid,
 220                         struct cifsTconInfo *tcon,
 221                         const char *fromName, const char *toName,
 222                         const struct nls_table *nls_codepage,
 223                         int remap_special_chars);
 224 extern int CIFSUnixCreateSymLink(const int xid,
 225                         struct cifsTconInfo *tcon,
 226                         const char *fromName, const char *toName,
 227                         const struct nls_table *nls_codepage);
 228 extern int CIFSSMBUnixQuerySymLink(const int xid,
 229                         struct cifsTconInfo *tcon,
 230                         const unsigned char *searchName,
 231                         char *syminfo, const int buflen,
 232                         const struct nls_table *nls_codepage);
 233 extern int CIFSSMBQueryReparseLinkInfo(const int xid,
 234                         struct cifsTconInfo *tcon,
 235                         const unsigned char *searchName,
 236                         char *symlinkinfo, const int buflen, __u16 fid,
 237                         const struct nls_table *nls_codepage);
 238
 239 extern int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
 240                         const char *fileName, const int disposition,
 241                         const int access_flags, const int omode,
 242                         __u16 * netfid, int *pOplock, FILE_ALL_INFO *,
 243                         const struct nls_table *nls_codepage, int remap);
 244 extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
 245                         const char *fileName, const int disposition,
 246                         const int access_flags, const int omode,
 247                         __u16 * netfid, int *pOplock, FILE_ALL_INFO *,
 248                         const struct nls_table *nls_codepage, int remap);
 249 extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon,
 250                         u32 posix_flags, __u64 mode, __u16 * netfid,
 251                         FILE_UNIX_BASIC_INFO *pRetData,
 252                         __u32 *pOplock, const char *name,
 253                         const struct nls_table *nls_codepage, int remap);
 254 extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon,
 255                         const int smb_file_id);
 256
 257 extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
 258                         const int netfid, unsigned int count,
 259                         const __u64 lseek, unsigned int *nbytes, char **buf,
 260                         int * return_buf_type);
 261 extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
 262                         const int netfid, const unsigned int count,
 263                         const __u64 lseek, unsigned int *nbytes,
 264                         const char *buf, const char __user *ubuf,
 265                         const int long_op);
 266 extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
 267                         const int netfid, const unsigned int count,
 268                         const __u64 offset, unsigned int *nbytes,
 269                         struct kvec *iov, const int nvec, const int long_op);
 270 extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
 271                         const unsigned char *searchName, __u64 * inode_number,
 272                         const struct nls_table *nls_codepage,
 273                         int remap_special_chars);
 274 extern int cifs_convertUCSpath(char *target, const __le16 *source, int maxlen,
 275                         const struct nls_table * codepage);
 276 extern int cifsConvertToUCS(__le16 * target, const char *source, int maxlen,
 277                         const struct nls_table * cp, int mapChars);
 278
 279 extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
 280                         const __u16 netfid, const __u64 len,
 281                         const __u64 offset, const __u32 numUnlock,
 282                         const __u32 numLock, const __u8 lockType,
 283                         const int waitFlag);
 284 extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
 285                         const __u16 smb_file_id, const int get_flag,
 286                         const __u64 len, struct file_lock *,
 287                         const __u16 lock_type, const int waitFlag);
 288 extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon);
 289 extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses);
 290
 291 extern struct cifsSesInfo *sesInfoAlloc(void);
 292 extern void sesInfoFree(struct cifsSesInfo *);
 293 extern struct cifsTconInfo *tconInfoAlloc(void);
 294 extern void tconInfoFree(struct cifsTconInfo *);
 295
 296 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *,__u32 *);
 297 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 298                           __u32 *);
 299 extern int cifs_verify_signature(struct smb_hdr *, const char * mac_key,
 300         __u32 expected_sequence_number);
 301 extern int cifs_calculate_mac_key(char * key,const char * rn,const char * pass);
 302 extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *,
 303                         const struct nls_table *);
 304 extern void CalcNTLMv2_response(const struct cifsSesInfo *, char * );
 305 extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
 306                              const struct nls_table *);
 307 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 308 extern void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key);
 309 #endif /* CIFS_WEAK_PW_HASH */
 310 extern int CIFSSMBCopy(int xid,
 311                         struct cifsTconInfo *source_tcon,
 312                         const char *fromName,
 313                         const __u16 target_tid,
 314                         const char *toName, const int flags,
 315                         const struct nls_table *nls_codepage,
 316                         int remap_special_chars);
 317 extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
 318                         const int notify_subdirs,const __u16 netfid,
 319                         __u32 filter, struct file * file, int multishot,
 320                         const struct nls_table *nls_codepage);
 321 extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
 322                         const unsigned char *searchName, char * EAData,
 323                         size_t bufsize, const struct nls_table *nls_codepage,
 324                         int remap_special_chars);
 325 extern ssize_t CIFSSMBQueryEA(const int xid,struct cifsTconInfo * tcon,
 326                 const unsigned char * searchName,const unsigned char * ea_name,
 327                 unsigned char * ea_value, size_t buf_size,
 328                 const struct nls_table *nls_codepage, int remap_special_chars);
 329 extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
 330                 const char *fileName, const char * ea_name,
 331                 const void * ea_value, const __u16 ea_value_len,
 332                 const struct nls_table *nls_codepage, int remap_special_chars);
 333 extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon,
 334                         __u16 fid, char *acl_inf, const int buflen,
 335                         const int acl_type /* ACCESS vs. DEFAULT */);
 336 extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
 337                 const unsigned char *searchName,
 338                 char *acl_inf, const int buflen,const int acl_type,
 339                 const struct nls_table *nls_codepage, int remap_special_chars);
 340 extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
 341                 const unsigned char *fileName,
 342                 const char *local_acl, const int buflen, const int acl_type,
 343                 const struct nls_table *nls_codepage, int remap_special_chars);
 344 extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
 345                 const int netfid, __u64 * pExtAttrBits, __u64 *pMask);
 346 #endif                  /* _CIFSPROTO_H */