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 29struct statfs; 30struct smb_vol; 31struct smb_rqst; 32 33/* 34 ***************************************************************** 35 * All Prototypes 36 ***************************************************************** 37 */ 38 39extern struct smb_hdr *cifs_buf_get(void); 40extern void cifs_buf_release(void *); 41extern struct smb_hdr *cifs_small_buf_get(void); 42extern void cifs_small_buf_release(void *); 43extern void free_rsp_buf(int, void *); 44extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *, 45 unsigned int /* length */); 46extern unsigned int _get_xid(void); 47extern void _free_xid(unsigned int); 48#define get_xid() \ 49({ \ 50 unsigned int __xid = _get_xid(); \ 51 cifs_dbg(FYI, "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) \ 59do { \ 60 _free_xid(curr_xid); \ 61 cifs_dbg(FYI, "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) 68extern int init_cifs_idmap(void); 69extern void exit_cifs_idmap(void); 70extern int init_cifs_spnego(void); 71extern void exit_cifs_spnego(void); 72extern char *build_path_from_dentry(struct dentry *); 73extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry, 74 bool prefix); 75extern 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); 79extern char *build_wildcard_path_from_dentry(struct dentry *direntry); 80extern 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);*/ 84extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer, 85 struct TCP_Server_Info *server); 86extern void DeleteMidQEntry(struct mid_q_entry *midEntry); 87extern void cifs_delete_mid(struct mid_q_entry *mid); 88extern void cifs_mid_q_entry_release(struct mid_q_entry *midEntry); 89extern void cifs_wake_up_task(struct mid_q_entry *mid); 90extern int cifs_handle_standard(struct TCP_Server_Info *server, 91 struct mid_q_entry *mid); 92extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs); 93extern int cifs_discard_remaining_data(struct TCP_Server_Info *server); 94extern int cifs_call_async(struct TCP_Server_Info *server, 95 struct smb_rqst *rqst, 96 mid_receive_t *receive, mid_callback_t *callback, 97 mid_handle_t *handle, void *cbdata, const int flags, 98 const struct cifs_credits *exist_credits); 99extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses); 100extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses, 101 struct TCP_Server_Info *server, 102 struct smb_rqst *rqst, int *resp_buf_type, 103 const int flags, struct kvec *resp_iov); 104extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses, 105 struct TCP_Server_Info *server, 106 const int flags, const int num_rqst, 107 struct smb_rqst *rqst, int *resp_buf_type, 108 struct kvec *resp_iov); 109extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *, 110 struct smb_hdr * /* input */ , 111 struct smb_hdr * /* out */ , 112 int * /* bytes returned */ , const int); 113extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses, 114 char *in_buf, int flags); 115extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *, 116 struct TCP_Server_Info *, 117 struct smb_rqst *); 118extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *, 119 struct smb_rqst *); 120extern int cifs_check_receive(struct mid_q_entry *mid, 121 struct TCP_Server_Info *server, bool log_error); 122extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server, 123 unsigned int size, unsigned int *num, 124 struct cifs_credits *credits); 125extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *, 126 struct kvec *, int /* nvec to send */, 127 int * /* type of buf returned */, const int flags, 128 struct kvec * /* resp vec */); 129extern int SendReceiveBlockingLock(const unsigned int xid, 130 struct cifs_tcon *ptcon, 131 struct smb_hdr *in_buf , 132 struct smb_hdr *out_buf, 133 int *bytes_returned); 134extern int cifs_reconnect(struct TCP_Server_Info *server); 135extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr); 136extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *); 137extern bool backup_cred(struct cifs_sb_info *); 138extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof); 139extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset, 140 unsigned int bytes_written); 141extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int); 142extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode, 143 int flags, 144 struct cifsFileInfo **ret_file); 145extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name, 146 int flags, 147 struct cifsFileInfo **ret_file); 148extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool); 149extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name, 150 struct cifsFileInfo **ret_file); 151extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server); 152extern int decode_negTokenInit(unsigned char *security_blob, int length, 153 struct TCP_Server_Info *server); 154extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len); 155extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port); 156extern int map_smb_to_linux_error(char *buf, bool logErr); 157extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr); 158extern void header_assemble(struct smb_hdr *, char /* command */ , 159 const struct cifs_tcon *, int /* length of 160 fixed section (word count) in two byte units */); 161extern int small_smb_init_no_tc(const int smb_cmd, const int wct, 162 struct cifs_ses *ses, 163 void **request_buf); 164extern enum securityEnum select_sectype(struct TCP_Server_Info *server, 165 enum securityEnum requested); 166extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses, 167 const struct nls_table *nls_cp); 168extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601); 169extern u64 cifs_UnixTimeToNT(struct timespec64); 170extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time, 171 int offset); 172extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock); 173extern int cifs_get_writer(struct cifsInodeInfo *cinode); 174extern void cifs_put_writer(struct cifsInodeInfo *cinode); 175extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode); 176extern int cifs_unlock_range(struct cifsFileInfo *cfile, 177 struct file_lock *flock, const unsigned int xid); 178extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile); 179 180extern void cifs_down_write(struct rw_semaphore *sem); 181extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid, 182 struct file *file, 183 struct tcon_link *tlink, 184 __u32 oplock); 185extern int cifs_posix_open(char *full_path, struct inode **inode, 186 struct super_block *sb, int mode, 187 unsigned int f_flags, __u32 *oplock, __u16 *netfid, 188 unsigned int xid); 189void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr); 190extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr, 191 FILE_UNIX_BASIC_INFO *info, 192 struct cifs_sb_info *cifs_sb); 193extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *, 194 struct cifs_sb_info *); 195extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr); 196extern struct inode *cifs_iget(struct super_block *sb, 197 struct cifs_fattr *fattr); 198 199extern int cifs_get_inode_info(struct inode **inode, const char *full_path, 200 FILE_ALL_INFO *data, struct super_block *sb, 201 int xid, const struct cifs_fid *fid); 202extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path, 203 struct super_block *sb, unsigned int xid); 204extern int cifs_get_inode_info_unix(struct inode **pinode, 205 const unsigned char *search_path, 206 struct super_block *sb, unsigned int xid); 207extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs, 208 unsigned int xid, char *full_path, __u32 dosattr); 209extern int cifs_rename_pending_delete(const char *full_path, 210 struct dentry *dentry, 211 const unsigned int xid); 212extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct cifs_sid *psid, 213 struct cifs_fattr *fattr, uint sidtype); 214extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb, 215 struct cifs_fattr *fattr, struct inode *inode, 216 bool get_mode_from_special_sid, 217 const char *path, const struct cifs_fid *pfid); 218extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64, 219 kuid_t, kgid_t); 220extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *, 221 const char *, u32 *); 222extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *, 223 const struct cifs_fid *, u32 *); 224extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *, 225 const char *, int); 226extern unsigned int setup_authusers_ACE(struct cifs_ace *pace); 227extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode); 228extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace); 229 230extern void dequeue_mid(struct mid_q_entry *mid, bool malformed); 231extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf, 232 unsigned int to_read); 233extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server, 234 size_t to_read); 235extern int cifs_read_page_from_socket(struct TCP_Server_Info *server, 236 struct page *page, 237 unsigned int page_offset, 238 unsigned int to_read); 239extern int cifs_setup_cifs_sb(struct smb_vol *pvolume_info, 240 struct cifs_sb_info *cifs_sb); 241extern int cifs_match_super(struct super_block *, void *); 242extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info); 243extern struct smb_vol *cifs_get_volume_info(char *mount_data, 244 const char *devname, bool is_smb3); 245extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol); 246extern void cifs_umount(struct cifs_sb_info *); 247extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon); 248extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon); 249 250extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset, 251 __u64 length, __u8 type, __u16 flags, 252 struct cifsLockInfo **conf_lock, 253 int rw_check); 254extern void cifs_add_pending_open(struct cifs_fid *fid, 255 struct tcon_link *tlink, 256 struct cifs_pending_open *open); 257extern void cifs_add_pending_open_locked(struct cifs_fid *fid, 258 struct tcon_link *tlink, 259 struct cifs_pending_open *open); 260extern void cifs_del_pending_open(struct cifs_pending_open *open); 261extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb_vol *vol); 262extern void cifs_put_tcp_session(struct TCP_Server_Info *server, 263 int from_reconnect); 264extern void cifs_put_tcon(struct cifs_tcon *tcon); 265 266#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) 267extern void cifs_dfs_release_automount_timer(void); 268#else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */ 269#define cifs_dfs_release_automount_timer() do { } while (0) 270#endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */ 271 272void cifs_proc_init(void); 273void cifs_proc_clean(void); 274 275extern void cifs_move_llist(struct list_head *source, struct list_head *dest); 276extern void cifs_free_llist(struct list_head *llist); 277extern void cifs_del_lock_waiters(struct cifsLockInfo *lock); 278 279extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, 280 const struct nls_table *nlsc); 281 282extern int cifs_negotiate_protocol(const unsigned int xid, 283 struct cifs_ses *ses); 284extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses, 285 struct nls_table *nls_info); 286extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required); 287extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses); 288 289extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses, 290 const char *tree, struct cifs_tcon *tcon, 291 const struct nls_table *); 292 293extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon, 294 const char *searchName, struct cifs_sb_info *cifs_sb, 295 __u16 *searchHandle, __u16 search_flags, 296 struct cifs_search_info *psrch_inf, 297 bool msearch); 298 299extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon, 300 __u16 searchHandle, __u16 search_flags, 301 struct cifs_search_info *psrch_inf); 302 303extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon, 304 const __u16 search_handle); 305 306extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon, 307 u16 netfid, FILE_ALL_INFO *pFindData); 308extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon, 309 const char *search_Name, FILE_ALL_INFO *data, 310 int legacy /* whether to use old info level */, 311 const struct nls_table *nls_codepage, int remap); 312extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon, 313 const char *search_name, FILE_ALL_INFO *data, 314 const struct nls_table *nls_codepage, int remap); 315 316extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon, 317 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData); 318extern int CIFSSMBUnixQPathInfo(const unsigned int xid, 319 struct cifs_tcon *tcon, 320 const unsigned char *searchName, 321 FILE_UNIX_BASIC_INFO *pFindData, 322 const struct nls_table *nls_codepage, int remap); 323 324extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses, 325 const char *search_name, 326 struct dfs_info3_param **target_nodes, 327 unsigned int *num_of_nodes, 328 const struct nls_table *nls_codepage, int remap); 329 330extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size, 331 unsigned int *num_of_nodes, 332 struct dfs_info3_param **target_nodes, 333 const struct nls_table *nls_codepage, int remap, 334 const char *searchName, bool is_unicode); 335extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon, 336 struct cifs_sb_info *cifs_sb, 337 struct smb_vol *vol); 338extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon, 339 struct kstatfs *FSData); 340extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon, 341 struct kstatfs *FSData); 342extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon, 343 __u64 cap); 344 345extern int CIFSSMBQFSAttributeInfo(const unsigned int xid, 346 struct cifs_tcon *tcon); 347extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon); 348extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon); 349extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon, 350 struct kstatfs *FSData); 351 352extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon, 353 const char *fileName, const FILE_BASIC_INFO *data, 354 const struct nls_table *nls_codepage, 355 struct cifs_sb_info *cifs_sb); 356extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon, 357 const FILE_BASIC_INFO *data, __u16 fid, 358 __u32 pid_of_opener); 359extern int CIFSSMBSetFileDisposition(const unsigned int xid, 360 struct cifs_tcon *tcon, 361 bool delete_file, __u16 fid, 362 __u32 pid_of_opener); 363#if 0 364extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon, 365 char *fileName, __u16 dos_attributes, 366 const struct nls_table *nls_codepage); 367#endif /* possibly unneeded function */ 368extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon, 369 const char *file_name, __u64 size, 370 struct cifs_sb_info *cifs_sb, bool set_allocation); 371extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, 372 struct cifsFileInfo *cfile, __u64 size, 373 bool set_allocation); 374 375struct cifs_unix_set_info_args { 376 __u64 ctime; 377 __u64 atime; 378 __u64 mtime; 379 __u64 mode; 380 kuid_t uid; 381 kgid_t gid; 382 dev_t device; 383}; 384 385extern int CIFSSMBUnixSetFileInfo(const unsigned int xid, 386 struct cifs_tcon *tcon, 387 const struct cifs_unix_set_info_args *args, 388 u16 fid, u32 pid_of_opener); 389 390extern int CIFSSMBUnixSetPathInfo(const unsigned int xid, 391 struct cifs_tcon *tcon, const char *file_name, 392 const struct cifs_unix_set_info_args *args, 393 const struct nls_table *nls_codepage, 394 int remap); 395 396extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode, 397 umode_t mode, struct cifs_tcon *tcon, 398 const char *name, struct cifs_sb_info *cifs_sb); 399extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon, 400 const char *name, struct cifs_sb_info *cifs_sb); 401extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon, 402 const char *name, __u16 type, 403 const struct nls_table *nls_codepage, 404 int remap_special_chars); 405extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon, 406 const char *name, struct cifs_sb_info *cifs_sb); 407extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon, 408 const char *from_name, const char *to_name, 409 struct cifs_sb_info *cifs_sb); 410extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon, 411 int netfid, const char *target_name, 412 const struct nls_table *nls_codepage, 413 int remap_special_chars); 414extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon, 415 const char *from_name, const char *to_name, 416 struct cifs_sb_info *cifs_sb); 417extern int CIFSUnixCreateHardLink(const unsigned int xid, 418 struct cifs_tcon *tcon, 419 const char *fromName, const char *toName, 420 const struct nls_table *nls_codepage, 421 int remap_special_chars); 422extern int CIFSUnixCreateSymLink(const unsigned int xid, 423 struct cifs_tcon *tcon, 424 const char *fromName, const char *toName, 425 const struct nls_table *nls_codepage, int remap); 426extern int CIFSSMBUnixQuerySymLink(const unsigned int xid, 427 struct cifs_tcon *tcon, 428 const unsigned char *searchName, char **syminfo, 429 const struct nls_table *nls_codepage, int remap); 430extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon, 431 __u16 fid, char **symlinkinfo, 432 const struct nls_table *nls_codepage); 433extern int CIFSSMB_set_compression(const unsigned int xid, 434 struct cifs_tcon *tcon, __u16 fid); 435extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms, 436 int *oplock, FILE_ALL_INFO *buf); 437extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon, 438 const char *fileName, const int disposition, 439 const int access_flags, const int omode, 440 __u16 *netfid, int *pOplock, FILE_ALL_INFO *, 441 const struct nls_table *nls_codepage, int remap); 442extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon, 443 u32 posix_flags, __u64 mode, __u16 *netfid, 444 FILE_UNIX_BASIC_INFO *pRetData, 445 __u32 *pOplock, const char *name, 446 const struct nls_table *nls_codepage, int remap); 447extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon, 448 const int smb_file_id); 449 450extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon, 451 const int smb_file_id); 452 453extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms, 454 unsigned int *nbytes, char **buf, 455 int *return_buf_type); 456extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms, 457 unsigned int *nbytes, const char *buf); 458extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms, 459 unsigned int *nbytes, struct kvec *iov, const int nvec); 460extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon, 461 const char *search_name, __u64 *inode_number, 462 const struct nls_table *nls_codepage, 463 int remap); 464 465extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon, 466 const __u16 netfid, const __u8 lock_type, 467 const __u32 num_unlock, const __u32 num_lock, 468 LOCKING_ANDX_RANGE *buf); 469extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon, 470 const __u16 netfid, const __u32 netpid, const __u64 len, 471 const __u64 offset, const __u32 numUnlock, 472 const __u32 numLock, const __u8 lockType, 473 const bool waitFlag, const __u8 oplock_level); 474extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon, 475 const __u16 smb_file_id, const __u32 netpid, 476 const loff_t start_offset, const __u64 len, 477 struct file_lock *, const __u16 lock_type, 478 const bool waitFlag); 479extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon); 480extern int CIFSSMBEcho(struct TCP_Server_Info *server); 481extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses); 482 483extern struct cifs_ses *sesInfoAlloc(void); 484extern void sesInfoFree(struct cifs_ses *); 485extern struct cifs_tcon *tconInfoAlloc(void); 486extern void tconInfoFree(struct cifs_tcon *); 487 488extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server, 489 __u32 *pexpected_response_sequence_number); 490extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *, 491 __u32 *); 492extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *); 493extern int cifs_verify_signature(struct smb_rqst *rqst, 494 struct TCP_Server_Info *server, 495 __u32 expected_sequence_number); 496extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *, 497 const struct nls_table *); 498extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *); 499extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *); 500extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server); 501extern int calc_seckey(struct cifs_ses *); 502extern int generate_smb30signingkey(struct cifs_ses *); 503extern int generate_smb311signingkey(struct cifs_ses *); 504 505#ifdef CONFIG_CIFS_WEAK_PW_HASH 506extern int calc_lanman_hash(const char *password, const char *cryptkey, 507 bool encrypt, char *lnm_session_key); 508#endif /* CIFS_WEAK_PW_HASH */ 509#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */ 510extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon, 511 const int notify_subdirs, const __u16 netfid, 512 __u32 filter, struct file *file, int multishot, 513 const struct nls_table *nls_codepage); 514#endif /* was needed for dnotify, and will be needed for inotify when VFS fix */ 515extern int CIFSSMBCopy(unsigned int xid, 516 struct cifs_tcon *source_tcon, 517 const char *fromName, 518 const __u16 target_tid, 519 const char *toName, const int flags, 520 const struct nls_table *nls_codepage, 521 int remap_special_chars); 522extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon, 523 const unsigned char *searchName, 524 const unsigned char *ea_name, char *EAData, 525 size_t bufsize, struct cifs_sb_info *cifs_sb); 526extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon, 527 const char *fileName, const char *ea_name, 528 const void *ea_value, const __u16 ea_value_len, 529 const struct nls_table *nls_codepage, 530 struct cifs_sb_info *cifs_sb); 531extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon, 532 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen); 533extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16, 534 struct cifs_ntsd *, __u32, int); 535extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon, 536 const unsigned char *searchName, 537 char *acl_inf, const int buflen, const int acl_type, 538 const struct nls_table *nls_codepage, int remap_special_chars); 539extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon, 540 const unsigned char *fileName, 541 const char *local_acl, const int buflen, const int acl_type, 542 const struct nls_table *nls_codepage, int remap_special_chars); 543extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon, 544 const int netfid, __u64 *pExtAttrBits, __u64 *pMask); 545extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb); 546extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr); 547extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, 548 struct cifs_sb_info *cifs_sb, 549 struct cifs_fattr *fattr, 550 const unsigned char *path); 551extern int mdfour(unsigned char *, unsigned char *, int); 552extern int E_md4hash(const unsigned char *passwd, unsigned char *p16, 553 const struct nls_table *codepage); 554extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8, 555 unsigned char *p24); 556 557extern int 558cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data, 559 const char *devname, bool is_smb3); 560extern void 561cifs_cleanup_volume_info_contents(struct smb_vol *volume_info); 562 563extern struct TCP_Server_Info * 564cifs_find_tcp_session(struct smb_vol *vol); 565 566extern void cifs_put_smb_ses(struct cifs_ses *ses); 567 568extern struct cifs_ses * 569cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info); 570 571void cifs_readdata_release(struct kref *refcount); 572int cifs_async_readv(struct cifs_readdata *rdata); 573int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid); 574 575int cifs_async_writev(struct cifs_writedata *wdata, 576 void (*release)(struct kref *kref)); 577void cifs_writev_complete(struct work_struct *work); 578struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages, 579 work_func_t complete); 580struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages, 581 work_func_t complete); 582void cifs_writedata_release(struct kref *refcount); 583int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, 584 struct cifs_sb_info *cifs_sb, 585 const unsigned char *path, char *pbuf, 586 unsigned int *pbytes_read); 587int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, 588 struct cifs_sb_info *cifs_sb, 589 const unsigned char *path, char *pbuf, 590 unsigned int *pbytes_written); 591int __cifs_calc_signature(struct smb_rqst *rqst, 592 struct TCP_Server_Info *server, char *signature, 593 struct shash_desc *shash); 594enum securityEnum cifs_select_sectype(struct TCP_Server_Info *, 595 enum securityEnum); 596struct cifs_aio_ctx *cifs_aio_ctx_alloc(void); 597void cifs_aio_ctx_release(struct kref *refcount); 598int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw); 599void smb2_cached_lease_break(struct work_struct *work); 600 601int cifs_alloc_hash(const char *name, struct crypto_shash **shash, 602 struct sdesc **sdesc); 603void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc); 604 605void rqst_page_get_length(const struct smb_rqst *rqst, unsigned int page, 606 unsigned int *len, unsigned int *offset); 607struct cifs_chan * 608cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server); 609int cifs_try_adding_channels(struct cifs_ses *ses); 610int cifs_ses_add_channel(struct cifs_ses *ses, 611 struct cifs_server_iface *iface); 612bool is_server_using_iface(struct TCP_Server_Info *server, 613 struct cifs_server_iface *iface); 614bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface); 615 616void extract_unc_hostname(const char *unc, const char **h, size_t *len); 617int copy_path_name(char *dst, const char *src); 618int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov, 619 int resp_buftype, 620 struct cifs_search_info *srch_inf); 621 622struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server); 623void cifs_put_tcp_super(struct super_block *sb); 624int update_super_prepath(struct cifs_tcon *tcon, char *prefix); 625 626#ifdef CONFIG_CIFS_DFS_UPCALL 627static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses, 628 const char *old_path, 629 const struct nls_table *nls_codepage, 630 struct dfs_info3_param *referral, int remap) 631{ 632 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path, 633 referral, NULL); 634} 635 636int match_target_ip(struct TCP_Server_Info *server, 637 const char *share, size_t share_len, 638 bool *result); 639#endif 640 641static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options) 642{ 643 if (cifs_sb && (backup_cred(cifs_sb))) 644 return options | CREATE_OPEN_BACKUP_INTENT; 645 else 646 return options; 647} 648 649#endif /* _CIFSPROTO_H */ 650