1 /* 2 * fs/cifs/cifsproto.h 3 * 4 * Copyright (c) International Business Machines Corp., 2002,2008 5 * Author(s): Steve French (sfrench@us.ibm.com) 6 * 7 * This library is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU Lesser General Public License as published 9 * by the Free Software Foundation; either version 2.1 of the License, or 10 * (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 15 * the GNU Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public License 18 * along with this library; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 #ifndef _CIFSPROTO_H 22 #define _CIFSPROTO_H 23 #include <linux/nls.h> 24 25 struct statfs; 26 struct smb_vol; 27 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 TCP_Server_Info *, struct smb_hdr *, 39 unsigned int /* length */); 40 extern unsigned int _GetXid(void); 41 extern void _FreeXid(unsigned int); 42 #define GetXid() \ 43 ({ \ 44 int __xid = (int)_GetXid(); \ 45 cFYI(1, "CIFS VFS: in %s as Xid: %d with uid: %d", \ 46 __func__, __xid, current_fsuid()); \ 47 __xid; \ 48 }) 49 50 #define FreeXid(curr_xid) \ 51 do { \ 52 _FreeXid(curr_xid); \ 53 cFYI(1, "CIFS VFS: leaving %s (xid = %d) rc = %d", \ 54 __func__, curr_xid, (int)rc); \ 55 } while (0) 56 extern int init_cifs_idmap(void); 57 extern void exit_cifs_idmap(void); 58 extern void cifs_destroy_idmaptrees(void); 59 extern char *build_path_from_dentry(struct dentry *); 60 extern char *cifs_build_path_to_root(struct smb_vol *vol, 61 struct cifs_sb_info *cifs_sb, 62 struct cifs_tcon *tcon); 63 extern char *build_wildcard_path_from_dentry(struct dentry *direntry); 64 extern char *cifs_compose_mount_options(const char *sb_mountdata, 65 const char *fullpath, const struct dfs_info3_param *ref, 66 char **devname); 67 /* extern void renew_parental_timestamps(struct dentry *direntry);*/ 68 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer, 69 struct TCP_Server_Info *server); 70 extern void DeleteMidQEntry(struct mid_q_entry *midEntry); 71 extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov, 72 unsigned int nvec, mid_receive_t *receive, 73 mid_callback_t *callback, void *cbdata, 74 bool ignore_pend); 75 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *, 76 struct smb_hdr * /* input */ , 77 struct smb_hdr * /* out */ , 78 int * /* bytes returned */ , const int long_op); 79 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses, 80 char *in_buf, int flags); 81 extern int cifs_check_receive(struct mid_q_entry *mid, 82 struct TCP_Server_Info *server, bool log_error); 83 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *, 84 struct kvec *, int /* nvec to send */, 85 int * /* type of buf returned */ , const int flags); 86 extern int SendReceiveBlockingLock(const unsigned int xid, 87 struct cifs_tcon *ptcon, 88 struct smb_hdr *in_buf , 89 struct smb_hdr *out_buf, 90 int *bytes_returned); 91 extern void cifs_add_credits(struct TCP_Server_Info *server, 92 const unsigned int add); 93 extern void cifs_set_credits(struct TCP_Server_Info *server, const int val); 94 extern int checkSMB(char *buf, unsigned int length); 95 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *); 96 extern bool backup_cred(struct cifs_sb_info *); 97 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof); 98 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset, 99 unsigned int bytes_written); 100 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool); 101 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool); 102 extern unsigned int smbCalcSize(struct smb_hdr *ptr); 103 extern int decode_negTokenInit(unsigned char *security_blob, int length, 104 struct TCP_Server_Info *server); 105 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len); 106 extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port); 107 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len, 108 const unsigned short int port); 109 extern int map_smb_to_linux_error(char *buf, bool logErr); 110 extern void header_assemble(struct smb_hdr *, char /* command */ , 111 const struct cifs_tcon *, int /* length of 112 fixed section (word count) in two byte units */); 113 extern int small_smb_init_no_tc(const int smb_cmd, const int wct, 114 struct cifs_ses *ses, 115 void **request_buf); 116 extern int CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses, 117 const struct nls_table *nls_cp); 118 extern __u64 GetNextMid(struct TCP_Server_Info *server); 119 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601); 120 extern u64 cifs_UnixTimeToNT(struct timespec); 121 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time, 122 int offset); 123 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock); 124 125 extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle, 126 struct file *file, struct tcon_link *tlink, 127 __u32 oplock); 128 extern int cifs_posix_open(char *full_path, struct inode **pinode, 129 struct super_block *sb, 130 int mode, unsigned int f_flags, 131 __u32 *poplock, __u16 *pnetfid, int xid); 132 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr); 133 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr, 134 FILE_UNIX_BASIC_INFO *info, 135 struct cifs_sb_info *cifs_sb); 136 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr); 137 extern struct inode *cifs_iget(struct super_block *sb, 138 struct cifs_fattr *fattr); 139 140 extern int cifs_get_file_info(struct file *filp); 141 extern int cifs_get_inode_info(struct inode **pinode, 142 const unsigned char *search_path, 143 FILE_ALL_INFO *pfile_info, 144 struct super_block *sb, int xid, const __u16 *pfid); 145 extern int cifs_get_file_info_unix(struct file *filp); 146 extern int cifs_get_inode_info_unix(struct inode **pinode, 147 const unsigned char *search_path, 148 struct super_block *sb, int xid); 149 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb, 150 struct cifs_fattr *fattr, struct inode *inode, 151 const char *path, const __u16 *pfid); 152 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64, 153 uid_t, gid_t); 154 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *, 155 const char *, u32 *); 156 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *, 157 const char *, int); 158 159 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed); 160 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf, 161 unsigned int to_read); 162 extern int cifs_readv_from_socket(struct TCP_Server_Info *server, 163 struct kvec *iov_orig, unsigned int nr_segs, 164 unsigned int to_read); 165 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info, 166 struct cifs_sb_info *cifs_sb); 167 extern int cifs_match_super(struct super_block *, void *); 168 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info); 169 extern struct smb_vol *cifs_get_volume_info(char *mount_data, 170 const char *devname); 171 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *); 172 extern void cifs_umount(struct cifs_sb_info *); 173 174 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) 175 extern void cifs_dfs_release_automount_timer(void); 176 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */ 177 #define cifs_dfs_release_automount_timer() do { } while (0) 178 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */ 179 180 void cifs_proc_init(void); 181 void cifs_proc_clean(void); 182 183 extern int cifs_negotiate_protocol(unsigned int xid, 184 struct cifs_ses *ses); 185 extern int cifs_setup_session(unsigned int xid, struct cifs_ses *ses, 186 struct nls_table *nls_info); 187 extern int CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses); 188 189 extern int CIFSTCon(unsigned int xid, struct cifs_ses *ses, 190 const char *tree, struct cifs_tcon *tcon, 191 const struct nls_table *); 192 193 extern int CIFSFindFirst(const int xid, struct cifs_tcon *tcon, 194 const char *searchName, const struct nls_table *nls_codepage, 195 __u16 *searchHandle, __u16 search_flags, 196 struct cifs_search_info *psrch_inf, 197 int map, const char dirsep); 198 199 extern int CIFSFindNext(const int xid, struct cifs_tcon *tcon, 200 __u16 searchHandle, __u16 search_flags, 201 struct cifs_search_info *psrch_inf); 202 203 extern int CIFSFindClose(const int, struct cifs_tcon *tcon, 204 const __u16 search_handle); 205 206 extern int CIFSSMBQFileInfo(const int xid, struct cifs_tcon *tcon, 207 u16 netfid, FILE_ALL_INFO *pFindData); 208 extern int CIFSSMBQPathInfo(const int xid, struct cifs_tcon *tcon, 209 const unsigned char *searchName, 210 FILE_ALL_INFO *findData, 211 int legacy /* whether to use old info level */, 212 const struct nls_table *nls_codepage, int remap); 213 extern int SMBQueryInformation(const int xid, struct cifs_tcon *tcon, 214 const unsigned char *searchName, 215 FILE_ALL_INFO *findData, 216 const struct nls_table *nls_codepage, int remap); 217 218 extern int CIFSSMBUnixQFileInfo(const int xid, struct cifs_tcon *tcon, 219 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData); 220 extern int CIFSSMBUnixQPathInfo(const int xid, 221 struct cifs_tcon *tcon, 222 const unsigned char *searchName, 223 FILE_UNIX_BASIC_INFO *pFindData, 224 const struct nls_table *nls_codepage, int remap); 225 226 extern int CIFSGetDFSRefer(const int xid, struct cifs_ses *ses, 227 const unsigned char *searchName, 228 struct dfs_info3_param **target_nodes, 229 unsigned int *number_of_nodes_in_array, 230 const struct nls_table *nls_codepage, int remap); 231 232 extern int get_dfs_path(int xid, struct cifs_ses *pSesInfo, 233 const char *old_path, 234 const struct nls_table *nls_codepage, 235 unsigned int *pnum_referrals, 236 struct dfs_info3_param **preferrals, 237 int remap); 238 extern void reset_cifs_unix_caps(int xid, struct cifs_tcon *tcon, 239 struct cifs_sb_info *cifs_sb, 240 struct smb_vol *vol); 241 extern int CIFSSMBQFSInfo(const int xid, struct cifs_tcon *tcon, 242 struct kstatfs *FSData); 243 extern int SMBOldQFSInfo(const int xid, struct cifs_tcon *tcon, 244 struct kstatfs *FSData); 245 extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifs_tcon *tcon, 246 __u64 cap); 247 248 extern int CIFSSMBQFSAttributeInfo(const int xid, 249 struct cifs_tcon *tcon); 250 extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifs_tcon *tcon); 251 extern int CIFSSMBQFSUnixInfo(const int xid, struct cifs_tcon *tcon); 252 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifs_tcon *tcon, 253 struct kstatfs *FSData); 254 255 extern int CIFSSMBSetPathInfo(const int xid, struct cifs_tcon *tcon, 256 const char *fileName, const FILE_BASIC_INFO *data, 257 const struct nls_table *nls_codepage, 258 int remap_special_chars); 259 extern int CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon, 260 const FILE_BASIC_INFO *data, __u16 fid, 261 __u32 pid_of_opener); 262 extern int CIFSSMBSetFileDisposition(const int xid, struct cifs_tcon *tcon, 263 bool delete_file, __u16 fid, __u32 pid_of_opener); 264 #if 0 265 extern int CIFSSMBSetAttrLegacy(int xid, struct cifs_tcon *tcon, 266 char *fileName, __u16 dos_attributes, 267 const struct nls_table *nls_codepage); 268 #endif /* possibly unneeded function */ 269 extern int CIFSSMBSetEOF(const int xid, struct cifs_tcon *tcon, 270 const char *fileName, __u64 size, 271 bool setAllocationSizeFlag, 272 const struct nls_table *nls_codepage, 273 int remap_special_chars); 274 extern int CIFSSMBSetFileSize(const int xid, struct cifs_tcon *tcon, 275 __u64 size, __u16 fileHandle, __u32 opener_pid, 276 bool AllocSizeFlag); 277 278 struct cifs_unix_set_info_args { 279 __u64 ctime; 280 __u64 atime; 281 __u64 mtime; 282 __u64 mode; 283 __u64 uid; 284 __u64 gid; 285 dev_t device; 286 }; 287 288 extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon, 289 const struct cifs_unix_set_info_args *args, 290 u16 fid, u32 pid_of_opener); 291 292 extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifs_tcon *pTcon, 293 char *fileName, 294 const struct cifs_unix_set_info_args *args, 295 const struct nls_table *nls_codepage, 296 int remap_special_chars); 297 298 extern int CIFSSMBMkDir(const int xid, struct cifs_tcon *tcon, 299 const char *newName, 300 const struct nls_table *nls_codepage, 301 int remap_special_chars); 302 extern int CIFSSMBRmDir(const int xid, struct cifs_tcon *tcon, 303 const char *name, const struct nls_table *nls_codepage, 304 int remap_special_chars); 305 extern int CIFSPOSIXDelFile(const int xid, struct cifs_tcon *tcon, 306 const char *name, __u16 type, 307 const struct nls_table *nls_codepage, 308 int remap_special_chars); 309 extern int CIFSSMBDelFile(const int xid, struct cifs_tcon *tcon, 310 const char *name, 311 const struct nls_table *nls_codepage, 312 int remap_special_chars); 313 extern int CIFSSMBRename(const int xid, struct cifs_tcon *tcon, 314 const char *fromName, const char *toName, 315 const struct nls_table *nls_codepage, 316 int remap_special_chars); 317 extern int CIFSSMBRenameOpenFile(const int xid, struct cifs_tcon *pTcon, 318 int netfid, const char *target_name, 319 const struct nls_table *nls_codepage, 320 int remap_special_chars); 321 extern int CIFSCreateHardLink(const int xid, 322 struct cifs_tcon *tcon, 323 const char *fromName, const char *toName, 324 const struct nls_table *nls_codepage, 325 int remap_special_chars); 326 extern int CIFSUnixCreateHardLink(const int xid, 327 struct cifs_tcon *tcon, 328 const char *fromName, const char *toName, 329 const struct nls_table *nls_codepage, 330 int remap_special_chars); 331 extern int CIFSUnixCreateSymLink(const int xid, 332 struct cifs_tcon *tcon, 333 const char *fromName, const char *toName, 334 const struct nls_table *nls_codepage); 335 extern int CIFSSMBUnixQuerySymLink(const int xid, 336 struct cifs_tcon *tcon, 337 const unsigned char *searchName, char **syminfo, 338 const struct nls_table *nls_codepage); 339 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL 340 extern int CIFSSMBQueryReparseLinkInfo(const int xid, 341 struct cifs_tcon *tcon, 342 const unsigned char *searchName, 343 char *symlinkinfo, const int buflen, __u16 fid, 344 const struct nls_table *nls_codepage); 345 #endif /* temporarily unused until cifs_symlink fixed */ 346 extern int CIFSSMBOpen(const int xid, struct cifs_tcon *tcon, 347 const char *fileName, const int disposition, 348 const int access_flags, const int omode, 349 __u16 *netfid, int *pOplock, FILE_ALL_INFO *, 350 const struct nls_table *nls_codepage, int remap); 351 extern int SMBLegacyOpen(const int xid, struct cifs_tcon *tcon, 352 const char *fileName, const int disposition, 353 const int access_flags, const int omode, 354 __u16 *netfid, int *pOplock, FILE_ALL_INFO *, 355 const struct nls_table *nls_codepage, int remap); 356 extern int CIFSPOSIXCreate(const int xid, struct cifs_tcon *tcon, 357 u32 posix_flags, __u64 mode, __u16 *netfid, 358 FILE_UNIX_BASIC_INFO *pRetData, 359 __u32 *pOplock, const char *name, 360 const struct nls_table *nls_codepage, int remap); 361 extern int CIFSSMBClose(const int xid, struct cifs_tcon *tcon, 362 const int smb_file_id); 363 364 extern int CIFSSMBFlush(const int xid, struct cifs_tcon *tcon, 365 const int smb_file_id); 366 367 extern int CIFSSMBRead(const int xid, struct cifs_io_parms *io_parms, 368 unsigned int *nbytes, char **buf, 369 int *return_buf_type); 370 extern int CIFSSMBWrite(const int xid, struct cifs_io_parms *io_parms, 371 unsigned int *nbytes, const char *buf, 372 const char __user *ubuf, const int long_op); 373 extern int CIFSSMBWrite2(const int xid, struct cifs_io_parms *io_parms, 374 unsigned int *nbytes, struct kvec *iov, const int nvec, 375 const int long_op); 376 extern int CIFSGetSrvInodeNumber(const int xid, struct cifs_tcon *tcon, 377 const unsigned char *searchName, __u64 *inode_number, 378 const struct nls_table *nls_codepage, 379 int remap_special_chars); 380 381 extern int cifs_lockv(const int xid, struct cifs_tcon *tcon, const __u16 netfid, 382 const __u8 lock_type, const __u32 num_unlock, 383 const __u32 num_lock, LOCKING_ANDX_RANGE *buf); 384 extern int CIFSSMBLock(const int xid, struct cifs_tcon *tcon, 385 const __u16 netfid, const __u32 netpid, const __u64 len, 386 const __u64 offset, const __u32 numUnlock, 387 const __u32 numLock, const __u8 lockType, 388 const bool waitFlag, const __u8 oplock_level); 389 extern int CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon, 390 const __u16 smb_file_id, const __u32 netpid, 391 const int get_flag, const __u64 len, struct file_lock *, 392 const __u16 lock_type, const bool waitFlag); 393 extern int CIFSSMBTDis(const int xid, struct cifs_tcon *tcon); 394 extern int CIFSSMBEcho(struct TCP_Server_Info *server); 395 extern int CIFSSMBLogoff(const int xid, struct cifs_ses *ses); 396 397 extern struct cifs_ses *sesInfoAlloc(void); 398 extern void sesInfoFree(struct cifs_ses *); 399 extern struct cifs_tcon *tconInfoAlloc(void); 400 extern void tconInfoFree(struct cifs_tcon *); 401 402 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *); 403 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *, 404 __u32 *); 405 extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov, 406 struct TCP_Server_Info *server, 407 __u32 expected_sequence_number); 408 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *, 409 const struct nls_table *); 410 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *); 411 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *); 412 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *); 413 extern void cifs_crypto_shash_release(struct TCP_Server_Info *); 414 extern int calc_seckey(struct cifs_ses *); 415 416 #ifdef CONFIG_CIFS_WEAK_PW_HASH 417 extern int calc_lanman_hash(const char *password, const char *cryptkey, 418 bool encrypt, char *lnm_session_key); 419 #endif /* CIFS_WEAK_PW_HASH */ 420 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */ 421 extern int CIFSSMBNotify(const int xid, struct cifs_tcon *tcon, 422 const int notify_subdirs, const __u16 netfid, 423 __u32 filter, struct file *file, int multishot, 424 const struct nls_table *nls_codepage); 425 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */ 426 extern int CIFSSMBCopy(int xid, 427 struct cifs_tcon *source_tcon, 428 const char *fromName, 429 const __u16 target_tid, 430 const char *toName, const int flags, 431 const struct nls_table *nls_codepage, 432 int remap_special_chars); 433 extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifs_tcon *tcon, 434 const unsigned char *searchName, 435 const unsigned char *ea_name, char *EAData, 436 size_t bufsize, const struct nls_table *nls_codepage, 437 int remap_special_chars); 438 extern int CIFSSMBSetEA(const int xid, struct cifs_tcon *tcon, 439 const char *fileName, const char *ea_name, 440 const void *ea_value, const __u16 ea_value_len, 441 const struct nls_table *nls_codepage, int remap_special_chars); 442 extern int CIFSSMBGetCIFSACL(const int xid, struct cifs_tcon *tcon, 443 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen); 444 extern int CIFSSMBSetCIFSACL(const int, struct cifs_tcon *, __u16, 445 struct cifs_ntsd *, __u32, int); 446 extern int CIFSSMBGetPosixACL(const int xid, struct cifs_tcon *tcon, 447 const unsigned char *searchName, 448 char *acl_inf, const int buflen, const int acl_type, 449 const struct nls_table *nls_codepage, int remap_special_chars); 450 extern int CIFSSMBSetPosixACL(const int xid, struct cifs_tcon *tcon, 451 const unsigned char *fileName, 452 const char *local_acl, const int buflen, const int acl_type, 453 const struct nls_table *nls_codepage, int remap_special_chars); 454 extern int CIFSGetExtAttr(const int xid, struct cifs_tcon *tcon, 455 const int netfid, __u64 *pExtAttrBits, __u64 *pMask); 456 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb); 457 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr); 458 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr, 459 const unsigned char *path, 460 struct cifs_sb_info *cifs_sb, int xid); 461 extern int mdfour(unsigned char *, unsigned char *, int); 462 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16, 463 const struct nls_table *codepage); 464 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8, 465 unsigned char *p24); 466 467 /* asynchronous read support */ 468 struct cifs_readdata { 469 struct cifsFileInfo *cfile; 470 struct address_space *mapping; 471 __u64 offset; 472 unsigned int bytes; 473 pid_t pid; 474 int result; 475 struct list_head pages; 476 struct work_struct work; 477 unsigned int nr_iov; 478 struct kvec iov[1]; 479 }; 480 481 struct cifs_readdata *cifs_readdata_alloc(unsigned int nr_pages); 482 void cifs_readdata_free(struct cifs_readdata *rdata); 483 int cifs_async_readv(struct cifs_readdata *rdata); 484 485 /* asynchronous write support */ 486 struct cifs_writedata { 487 struct kref refcount; 488 struct list_head list; 489 struct completion done; 490 enum writeback_sync_modes sync_mode; 491 struct work_struct work; 492 struct cifsFileInfo *cfile; 493 __u64 offset; 494 pid_t pid; 495 unsigned int bytes; 496 int result; 497 void (*marshal_iov) (struct kvec *iov, 498 struct cifs_writedata *wdata); 499 unsigned int nr_pages; 500 struct page *pages[1]; 501 }; 502 503 int cifs_async_writev(struct cifs_writedata *wdata); 504 void cifs_writev_complete(struct work_struct *work); 505 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages, 506 work_func_t complete); 507 void cifs_writedata_release(struct kref *refcount); 508 509 #endif /* _CIFSPROTO_H */ 510