LXR linux/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
  25struct statfs;
  26struct smb_vol;
  27
  28/*
  29 *****************************************************************
  30 * All Prototypes
  31 *****************************************************************
  32 */
  33
  34extern struct smb_hdr *cifs_buf_get(void);
  35extern void cifs_buf_release(void *);
  36extern struct smb_hdr *cifs_small_buf_get(void);
  37extern void cifs_small_buf_release(void *);
  38extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
  39                        unsigned int /* length */);
  40extern unsigned int _GetXid(void);
  41extern void _FreeXid(unsigned int);
  42#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__func__, xid,current_fsuid()));
  43#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__func__,curr_xid,(int)rc));}
  44extern char *build_path_from_dentry(struct dentry *);
  45extern char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb);
  46extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
  47extern char *cifs_compose_mount_options(const char *sb_mountdata,
  48                const char *fullpath, const struct dfs_info3_param *ref,
  49                char **devname);
  50/* extern void renew_parental_timestamps(struct dentry *direntry);*/
  51extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
  52                        struct smb_hdr * /* input */ ,
  53                        struct smb_hdr * /* out */ ,
  54                        int * /* bytes returned */ , const int long_op);
  55extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
  56                        struct smb_hdr *in_buf, int flags);
  57extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
  58                        struct kvec *, int /* nvec to send */,
  59                        int * /* type of buf returned */ , const int flags);
  60extern int SendReceiveBlockingLock(const unsigned int xid,
  61                        struct cifsTconInfo *ptcon,
  62                        struct smb_hdr *in_buf ,
  63                        struct smb_hdr *out_buf,
  64                        int *bytes_returned);
  65extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
  66extern bool is_valid_oplock_break(struct smb_hdr *smb,
  67                                  struct TCP_Server_Info *);
  68extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
  69extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
  70#ifdef CONFIG_CIFS_EXPERIMENTAL
  71extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *);
  72#endif
  73extern unsigned int smbCalcSize(struct smb_hdr *ptr);
  74extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
  75extern int decode_negTokenInit(unsigned char *security_blob, int length,
  76                        enum securityEnum *secType);
  77extern int cifs_convert_address(char *src, void *dst);
  78extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr);
  79extern void header_assemble(struct smb_hdr *, char /* command */ ,
  80                            const struct cifsTconInfo *, int /* length of
  81                            fixed section (word count) in two byte units */);
  82extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
  83                                struct cifsSesInfo *ses,
  84                                void **request_buf);
  85extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
  86                             const int stage,
  87                             const struct nls_table *nls_cp);
  88extern __u16 GetNextMid(struct TCP_Server_Info *server);
  89extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
  90extern u64 cifs_UnixTimeToNT(struct timespec);
  91extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
  92                                      int offset);
  93
  94extern struct cifsFileInfo *cifs_new_fileinfo(struct inode *newinode,
  95                                __u16 fileHandle, struct file *file,
  96                                struct vfsmount *mnt, unsigned int oflags);
  97extern int cifs_posix_open(char *full_path, struct inode **pinode,
  98                           struct vfsmount *mnt, int mode, int oflags,
  99                           __u32 *poplock, __u16 *pnetfid, int xid);
 100extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
 101                                     FILE_UNIX_BASIC_INFO *info,
 102                                     struct cifs_sb_info *cifs_sb);
 103extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
 104extern struct inode *cifs_iget(struct super_block *sb,
 105                               struct cifs_fattr *fattr);
 106
 107extern int cifs_get_inode_info(struct inode **pinode,
 108                        const unsigned char *search_path,
 109                        FILE_ALL_INFO *pfile_info,
 110                        struct super_block *sb, int xid, const __u16 *pfid);
 111extern int cifs_get_inode_info_unix(struct inode **pinode,
 112                        const unsigned char *search_path,
 113                        struct super_block *sb, int xid);
 114extern void cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
 115                              struct cifs_fattr *fattr, struct inode *inode,
 116                              const char *path, const __u16 *pfid);
 117extern int mode_to_acl(struct inode *inode, const char *path, __u64);
 118
 119extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
 120                        const char *);
 121extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
 122extern void cifs_dfs_release_automount_timer(void);
 123void cifs_proc_init(void);
 124void cifs_proc_clean(void);
 125
 126extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
 127                        struct nls_table *nls_info);
 128extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses);
 129
 130extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 131                        const char *tree, struct cifsTconInfo *tcon,
 132                        const struct nls_table *);
 133
 134extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
 135                const char *searchName, const struct nls_table *nls_codepage,
 136                __u16 *searchHandle, struct cifs_search_info *psrch_inf,
 137                int map, const char dirsep);
 138
 139extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
 140                __u16 searchHandle, struct cifs_search_info *psrch_inf);
 141
 142extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
 143                        const __u16 search_handle);
 144
 145extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
 146                        const unsigned char *searchName,
 147                        FILE_ALL_INFO *findData,
 148                        int legacy /* whether to use old info level */,
 149                        const struct nls_table *nls_codepage, int remap);
 150extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
 151                        const unsigned char *searchName,
 152                        FILE_ALL_INFO *findData,
 153                        const struct nls_table *nls_codepage, int remap);
 154
 155extern int CIFSSMBUnixQPathInfo(const int xid,
 156                        struct cifsTconInfo *tcon,
 157                        const unsigned char *searchName,
 158                        FILE_UNIX_BASIC_INFO *pFindData,
 159                        const struct nls_table *nls_codepage, int remap);
 160
 161extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
 162                        const unsigned char *searchName,
 163                        struct dfs_info3_param **target_nodes,
 164                        unsigned int *number_of_nodes_in_array,
 165                        const struct nls_table *nls_codepage, int remap);
 166
 167extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
 168                        const char *old_path,
 169                        const struct nls_table *nls_codepage,
 170                        unsigned int *pnum_referrals,
 171                        struct dfs_info3_param **preferrals,
 172                        int remap);
 173extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
 174                                 struct super_block *sb, struct smb_vol *vol);
 175extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
 176                        struct kstatfs *FSData);
 177extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon,
 178                        struct kstatfs *FSData);
 179extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon,
 180                        __u64 cap);
 181
 182extern int CIFSSMBQFSAttributeInfo(const int xid,
 183                        struct cifsTconInfo *tcon);
 184extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon);
 185extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
 186extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
 187                        struct kstatfs *FSData);
 188
 189extern int CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
 190                        const char *fileName, const FILE_BASIC_INFO *data,
 191                        const struct nls_table *nls_codepage,
 192                        int remap_special_chars);
 193extern int CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
 194                        const FILE_BASIC_INFO *data, __u16 fid,
 195                        __u32 pid_of_opener);
 196extern int CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon,
 197                        bool delete_file, __u16 fid, __u32 pid_of_opener);
 198#if 0
 199extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
 200                        char *fileName, __u16 dos_attributes,
 201                        const struct nls_table *nls_codepage);
 202#endif /* possibly unneeded function */
 203extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
 204                        const char *fileName, __u64 size,
 205                        bool setAllocationSizeFlag,
 206                        const struct nls_table *nls_codepage,
 207                        int remap_special_chars);
 208extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
 209                         __u64 size, __u16 fileHandle, __u32 opener_pid,
 210                        bool AllocSizeFlag);
 211
 212struct cifs_unix_set_info_args {
 213        __u64   ctime;
 214        __u64   atime;
 215        __u64   mtime;
 216        __u64   mode;
 217        __u64   uid;
 218        __u64   gid;
 219        dev_t   device;
 220};
 221
 222extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon,
 223                                  const struct cifs_unix_set_info_args *args,
 224                                  u16 fid, u32 pid_of_opener);
 225
 226extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *pTcon,
 227                        char *fileName,
 228                        const struct cifs_unix_set_info_args *args,
 229                        const struct nls_table *nls_codepage,
 230                        int remap_special_chars);
 231
 232extern int CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon,
 233                        const char *newName,
 234                        const struct nls_table *nls_codepage,
 235                        int remap_special_chars);
 236extern int CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon,
 237                        const char *name, const struct nls_table *nls_codepage,
 238                        int remap_special_chars);
 239extern int CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon,
 240                        const char *name, __u16 type,
 241                        const struct nls_table *nls_codepage,
 242                        int remap_special_chars);
 243extern int CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon,
 244                        const char *name,
 245                        const struct nls_table *nls_codepage,
 246                        int remap_special_chars);
 247extern int CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
 248                        const char *fromName, const char *toName,
 249                        const struct nls_table *nls_codepage,
 250                        int remap_special_chars);
 251extern int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
 252                        int netfid, const char *target_name,
 253                        const struct nls_table *nls_codepage,
 254                        int remap_special_chars);
 255extern int CIFSCreateHardLink(const int xid,
 256                        struct cifsTconInfo *tcon,
 257                        const char *fromName, const char *toName,
 258                        const struct nls_table *nls_codepage,
 259                        int remap_special_chars);
 260extern int CIFSUnixCreateHardLink(const int xid,
 261                        struct cifsTconInfo *tcon,
 262                        const char *fromName, const char *toName,
 263                        const struct nls_table *nls_codepage,
 264                        int remap_special_chars);
 265extern int CIFSUnixCreateSymLink(const int xid,
 266                        struct cifsTconInfo *tcon,
 267                        const char *fromName, const char *toName,
 268                        const struct nls_table *nls_codepage);
 269extern int CIFSSMBUnixQuerySymLink(const int xid,
 270                        struct cifsTconInfo *tcon,
 271                        const unsigned char *searchName, char **syminfo,
 272                        const struct nls_table *nls_codepage);
 273extern int CIFSSMBQueryReparseLinkInfo(const int xid,
 274                        struct cifsTconInfo *tcon,
 275                        const unsigned char *searchName,
 276                        char *symlinkinfo, const int buflen, __u16 fid,
 277                        const struct nls_table *nls_codepage);
 278
 279extern int CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon,
 280                        const char *fileName, const int disposition,
 281                        const int access_flags, const int omode,
 282                        __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 283                        const struct nls_table *nls_codepage, int remap);
 284extern int SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon,
 285                        const char *fileName, const int disposition,
 286                        const int access_flags, const int omode,
 287                        __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
 288                        const struct nls_table *nls_codepage, int remap);
 289extern int CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon,
 290                        u32 posix_flags, __u64 mode, __u16 *netfid,
 291                        FILE_UNIX_BASIC_INFO *pRetData,
 292                        __u32 *pOplock, const char *name,
 293                        const struct nls_table *nls_codepage, int remap);
 294extern int CIFSSMBClose(const int xid, struct cifsTconInfo *tcon,
 295                        const int smb_file_id);
 296
 297extern int CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon,
 298                        const int smb_file_id);
 299
 300extern int CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
 301                        const int netfid, unsigned int count,
 302                        const __u64 lseek, unsigned int *nbytes, char **buf,
 303                        int *return_buf_type);
 304extern int CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon,
 305                        const int netfid, const unsigned int count,
 306                        const __u64 lseek, unsigned int *nbytes,
 307                        const char *buf, const char __user *ubuf,
 308                        const int long_op);
 309extern int CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
 310                        const int netfid, const unsigned int count,
 311                        const __u64 offset, unsigned int *nbytes,
 312                        struct kvec *iov, const int nvec, const int long_op);
 313extern int CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon,
 314                        const unsigned char *searchName, __u64 *inode_number,
 315                        const struct nls_table *nls_codepage,
 316                        int remap_special_chars);
 317extern int cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
 318                        const struct nls_table *cp, int mapChars);
 319
 320extern int CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
 321                        const __u16 netfid, const __u64 len,
 322                        const __u64 offset, const __u32 numUnlock,
 323                        const __u32 numLock, const __u8 lockType,
 324                        const bool waitFlag);
 325extern int CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
 326                        const __u16 smb_file_id, const int get_flag,
 327                        const __u64 len, struct file_lock *,
 328                        const __u16 lock_type, const bool waitFlag);
 329extern int CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon);
 330extern int CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses);
 331
 332extern struct cifsSesInfo *sesInfoAlloc(void);
 333extern void sesInfoFree(struct cifsSesInfo *);
 334extern struct cifsTconInfo *tconInfoAlloc(void);
 335extern void tconInfoFree(struct cifsTconInfo *);
 336
 337extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
 338extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
 339                          __u32 *);
 340extern int cifs_verify_signature(struct smb_hdr *,
 341                                 const struct mac_key *mac_key,
 342                                __u32 expected_sequence_number);
 343extern int cifs_calculate_mac_key(struct mac_key *key, const char *rn,
 344                                 const char *pass);
 345extern int CalcNTLMv2_partial_mac_key(struct cifsSesInfo *,
 346                        const struct nls_table *);
 347extern void CalcNTLMv2_response(const struct cifsSesInfo *, char *);
 348extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
 349                             const struct nls_table *);
 350#ifdef CONFIG_CIFS_WEAK_PW_HASH
 351extern void calc_lanman_hash(const char *password, const char *cryptkey,
 352                                bool encrypt, char *lnm_session_key);
 353#endif /* CIFS_WEAK_PW_HASH */
 354extern int CIFSSMBCopy(int xid,
 355                        struct cifsTconInfo *source_tcon,
 356                        const char *fromName,
 357                        const __u16 target_tid,
 358                        const char *toName, const int flags,
 359                        const struct nls_table *nls_codepage,
 360                        int remap_special_chars);
 361extern int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
 362                        const int notify_subdirs, const __u16 netfid,
 363                        __u32 filter, struct file *file, int multishot,
 364                        const struct nls_table *nls_codepage);
 365extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
 366                        const unsigned char *searchName, char *EAData,
 367                        size_t bufsize, const struct nls_table *nls_codepage,
 368                        int remap_special_chars);
 369extern ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon,
 370                const unsigned char *searchName, const unsigned char *ea_name,
 371                unsigned char *ea_value, size_t buf_size,
 372                const struct nls_table *nls_codepage, int remap_special_chars);
 373extern int CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon,
 374                const char *fileName, const char *ea_name,
 375                const void *ea_value, const __u16 ea_value_len,
 376                const struct nls_table *nls_codepage, int remap_special_chars);
 377extern int CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon,
 378                        __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
 379extern int CIFSSMBSetCIFSACL(const int, struct cifsTconInfo *, __u16,
 380                        struct cifs_ntsd *, __u32);
 381extern int CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon,
 382                const unsigned char *searchName,
 383                char *acl_inf, const int buflen, const int acl_type,
 384                const struct nls_table *nls_codepage, int remap_special_chars);
 385extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
 386                const unsigned char *fileName,
 387                const char *local_acl, const int buflen, const int acl_type,
 388                const struct nls_table *nls_codepage, int remap_special_chars);
 389extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
 390                        const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
 391extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 392#endif                  /* _CIFSPROTO_H */
 393