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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_rqst;
31struct smb3_fs_context;
32
33
34
35
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 );
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 smb3_fs_context *ctx,
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
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 int smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx);
93extern int smb3_parse_opt(const char *options, const char *key, char **val);
94extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
95extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
96extern int cifs_call_async(struct TCP_Server_Info *server,
97 struct smb_rqst *rqst,
98 mid_receive_t *receive, mid_callback_t *callback,
99 mid_handle_t *handle, void *cbdata, const int flags,
100 const struct cifs_credits *exist_credits);
101extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
102extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
103 struct TCP_Server_Info *server,
104 struct smb_rqst *rqst, int *resp_buf_type,
105 const int flags, struct kvec *resp_iov);
106extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
107 struct TCP_Server_Info *server,
108 const int flags, const int num_rqst,
109 struct smb_rqst *rqst, int *resp_buf_type,
110 struct kvec *resp_iov);
111extern int SendReceive(const unsigned int , struct cifs_ses *,
112 struct smb_hdr * ,
113 struct smb_hdr * ,
114 int * , const int);
115extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
116 char *in_buf, int flags);
117extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
118 struct TCP_Server_Info *,
119 struct smb_rqst *);
120extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
121 struct smb_rqst *);
122extern int cifs_check_receive(struct mid_q_entry *mid,
123 struct TCP_Server_Info *server, bool log_error);
124extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
125 unsigned int size, unsigned int *num,
126 struct cifs_credits *credits);
127extern int SendReceive2(const unsigned int , struct cifs_ses *,
128 struct kvec *, int ,
129 int * , const int flags,
130 struct kvec * );
131extern int SendReceiveBlockingLock(const unsigned int xid,
132 struct cifs_tcon *ptcon,
133 struct smb_hdr *in_buf ,
134 struct smb_hdr *out_buf,
135 int *bytes_returned);
136extern int cifs_reconnect(struct TCP_Server_Info *server);
137extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
138extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
139extern bool backup_cred(struct cifs_sb_info *);
140extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
141extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
142 unsigned int bytes_written);
143extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
144extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
145 int flags,
146 struct cifsFileInfo **ret_file);
147extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
148 int flags,
149 struct cifsFileInfo **ret_file);
150extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
151extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
152 struct cifsFileInfo **ret_file);
153extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
154extern int decode_negTokenInit(unsigned char *security_blob, int length,
155 struct TCP_Server_Info *server);
156extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
157extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
158extern int map_smb_to_linux_error(char *buf, bool logErr);
159extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
160extern void header_assemble(struct smb_hdr *, char ,
161 const struct cifs_tcon *, int
162);
163extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
164 struct cifs_ses *ses,
165 void **request_buf);
166extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
167 enum securityEnum requested);
168extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
169 const struct nls_table *nls_cp);
170extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
171extern u64 cifs_UnixTimeToNT(struct timespec64);
172extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
173 int offset);
174extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
175extern int cifs_get_writer(struct cifsInodeInfo *cinode);
176extern void cifs_put_writer(struct cifsInodeInfo *cinode);
177extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
178extern int cifs_unlock_range(struct cifsFileInfo *cfile,
179 struct file_lock *flock, const unsigned int xid);
180extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
181
182extern void cifs_down_write(struct rw_semaphore *sem);
183extern struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid,
184 struct file *file,
185 struct tcon_link *tlink,
186 __u32 oplock);
187extern int cifs_posix_open(char *full_path, struct inode **inode,
188 struct super_block *sb, int mode,
189 unsigned int f_flags, __u32 *oplock, __u16 *netfid,
190 unsigned int xid);
191void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
192extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
193 FILE_UNIX_BASIC_INFO *info,
194 struct cifs_sb_info *cifs_sb);
195extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
196 struct cifs_sb_info *);
197extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
198extern struct inode *cifs_iget(struct super_block *sb,
199 struct cifs_fattr *fattr);
200
201extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
202 FILE_ALL_INFO *data, struct super_block *sb,
203 int xid, const struct cifs_fid *fid);
204extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
205 struct super_block *sb, unsigned int xid);
206extern int cifs_get_inode_info_unix(struct inode **pinode,
207 const unsigned char *search_path,
208 struct super_block *sb, unsigned int xid);
209extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
210 unsigned int xid, char *full_path, __u32 dosattr);
211extern int cifs_rename_pending_delete(const char *full_path,
212 struct dentry *dentry,
213 const unsigned int xid);
214extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct cifs_sid *psid,
215 struct cifs_fattr *fattr, uint sidtype);
216extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
217 struct cifs_fattr *fattr, struct inode *inode,
218 bool get_mode_from_special_sid,
219 const char *path, const struct cifs_fid *pfid);
220extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
221 kuid_t uid, kgid_t gid);
222extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
223 const char *, u32 *, u32);
224extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
225 const struct cifs_fid *, u32 *, u32);
226extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
227 const char *, int);
228extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
229extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
230extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace);
231
232extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
233extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
234 unsigned int to_read);
235extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server,
236 size_t to_read);
237extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
238 struct page *page,
239 unsigned int page_offset,
240 unsigned int to_read);
241extern int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb);
242extern int cifs_match_super(struct super_block *, void *);
243extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx);
244extern void cifs_umount(struct cifs_sb_info *);
245extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
246extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
247
248extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
249 __u64 length, __u8 type, __u16 flags,
250 struct cifsLockInfo **conf_lock,
251 int rw_check);
252extern void cifs_add_pending_open(struct cifs_fid *fid,
253 struct tcon_link *tlink,
254 struct cifs_pending_open *open);
255extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
256 struct tcon_link *tlink,
257 struct cifs_pending_open *open);
258extern void cifs_del_pending_open(struct cifs_pending_open *open);
259extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb3_fs_context *ctx);
260extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
261 int from_reconnect);
262extern void cifs_put_tcon(struct cifs_tcon *tcon);
263
264#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
265extern void cifs_dfs_release_automount_timer(void);
266#else
267#define cifs_dfs_release_automount_timer() do { } while (0)
268#endif
269
270void cifs_proc_init(void);
271void cifs_proc_clean(void);
272
273extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
274extern void cifs_free_llist(struct list_head *llist);
275extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
276
277extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
278 const struct nls_table *nlsc);
279
280extern int cifs_negotiate_protocol(const unsigned int xid,
281 struct cifs_ses *ses);
282extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
283 struct nls_table *nls_info);
284extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
285extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
286
287extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
288 const char *tree, struct cifs_tcon *tcon,
289 const struct nls_table *);
290
291extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
292 const char *searchName, struct cifs_sb_info *cifs_sb,
293 __u16 *searchHandle, __u16 search_flags,
294 struct cifs_search_info *psrch_inf,
295 bool msearch);
296
297extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
298 __u16 searchHandle, __u16 search_flags,
299 struct cifs_search_info *psrch_inf);
300
301extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
302 const __u16 search_handle);
303
304extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
305 u16 netfid, FILE_ALL_INFO *pFindData);
306extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
307 const char *search_Name, FILE_ALL_INFO *data,
308 int legacy ,
309 const struct nls_table *nls_codepage, int remap);
310extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
311 const char *search_name, FILE_ALL_INFO *data,
312 const struct nls_table *nls_codepage, int remap);
313
314extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
315 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
316extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
317 struct cifs_tcon *tcon,
318 const unsigned char *searchName,
319 FILE_UNIX_BASIC_INFO *pFindData,
320 const struct nls_table *nls_codepage, int remap);
321
322extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
323 const char *search_name,
324 struct dfs_info3_param **target_nodes,
325 unsigned int *num_of_nodes,
326 const struct nls_table *nls_codepage, int remap);
327
328extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
329 unsigned int *num_of_nodes,
330 struct dfs_info3_param **target_nodes,
331 const struct nls_table *nls_codepage, int remap,
332 const char *searchName, bool is_unicode);
333extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
334 struct cifs_sb_info *cifs_sb,
335 struct smb3_fs_context *ctx);
336extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
337 struct kstatfs *FSData);
338extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
339 struct kstatfs *FSData);
340extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
341 __u64 cap);
342
343extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
344 struct cifs_tcon *tcon);
345extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
346extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
347extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
348 struct kstatfs *FSData);
349
350extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
351 const char *fileName, const FILE_BASIC_INFO *data,
352 const struct nls_table *nls_codepage,
353 struct cifs_sb_info *cifs_sb);
354extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
355 const FILE_BASIC_INFO *data, __u16 fid,
356 __u32 pid_of_opener);
357extern int CIFSSMBSetFileDisposition(const unsigned int xid,
358 struct cifs_tcon *tcon,
359 bool delete_file, __u16 fid,
360 __u32 pid_of_opener);
361#if 0
362extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon,
363 char *fileName, __u16 dos_attributes,
364 const struct nls_table *nls_codepage);
365#endif
366extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
367 const char *file_name, __u64 size,
368 struct cifs_sb_info *cifs_sb, bool set_allocation);
369extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
370 struct cifsFileInfo *cfile, __u64 size,
371 bool set_allocation);
372
373struct cifs_unix_set_info_args {
374 __u64 ctime;
375 __u64 atime;
376 __u64 mtime;
377 __u64 mode;
378 kuid_t uid;
379 kgid_t gid;
380 dev_t device;
381};
382
383extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
384 struct cifs_tcon *tcon,
385 const struct cifs_unix_set_info_args *args,
386 u16 fid, u32 pid_of_opener);
387
388extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
389 struct cifs_tcon *tcon, const char *file_name,
390 const struct cifs_unix_set_info_args *args,
391 const struct nls_table *nls_codepage,
392 int remap);
393
394extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
395 umode_t mode, struct cifs_tcon *tcon,
396 const char *name, struct cifs_sb_info *cifs_sb);
397extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
398 const char *name, struct cifs_sb_info *cifs_sb);
399extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
400 const char *name, __u16 type,
401 const struct nls_table *nls_codepage,
402 int remap_special_chars);
403extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
404 const char *name, struct cifs_sb_info *cifs_sb);
405extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
406 const char *from_name, const char *to_name,
407 struct cifs_sb_info *cifs_sb);
408extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
409 int netfid, const char *target_name,
410 const struct nls_table *nls_codepage,
411 int remap_special_chars);
412extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
413 const char *from_name, const char *to_name,
414 struct cifs_sb_info *cifs_sb);
415extern int CIFSUnixCreateHardLink(const unsigned int xid,
416 struct cifs_tcon *tcon,
417 const char *fromName, const char *toName,
418 const struct nls_table *nls_codepage,
419 int remap_special_chars);
420extern int CIFSUnixCreateSymLink(const unsigned int xid,
421 struct cifs_tcon *tcon,
422 const char *fromName, const char *toName,
423 const struct nls_table *nls_codepage, int remap);
424extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
425 struct cifs_tcon *tcon,
426 const unsigned char *searchName, char **syminfo,
427 const struct nls_table *nls_codepage, int remap);
428extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
429 __u16 fid, char **symlinkinfo,
430 const struct nls_table *nls_codepage);
431extern int CIFSSMB_set_compression(const unsigned int xid,
432 struct cifs_tcon *tcon, __u16 fid);
433extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
434 int *oplock, FILE_ALL_INFO *buf);
435extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
436 const char *fileName, const int disposition,
437 const int access_flags, const int omode,
438 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
439 const struct nls_table *nls_codepage, int remap);
440extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
441 u32 posix_flags, __u64 mode, __u16 *netfid,
442 FILE_UNIX_BASIC_INFO *pRetData,
443 __u32 *pOplock, const char *name,
444 const struct nls_table *nls_codepage, int remap);
445extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
446 const int smb_file_id);
447
448extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
449 const int smb_file_id);
450
451extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
452 unsigned int *nbytes, char **buf,
453 int *return_buf_type);
454extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
455 unsigned int *nbytes, const char *buf);
456extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
457 unsigned int *nbytes, struct kvec *iov, const int nvec);
458extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
459 const char *search_name, __u64 *inode_number,
460 const struct nls_table *nls_codepage,
461 int remap);
462
463extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
464 const __u16 netfid, const __u8 lock_type,
465 const __u32 num_unlock, const __u32 num_lock,
466 LOCKING_ANDX_RANGE *buf);
467extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
468 const __u16 netfid, const __u32 netpid, const __u64 len,
469 const __u64 offset, const __u32 numUnlock,
470 const __u32 numLock, const __u8 lockType,
471 const bool waitFlag, const __u8 oplock_level);
472extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
473 const __u16 smb_file_id, const __u32 netpid,
474 const loff_t start_offset, const __u64 len,
475 struct file_lock *, const __u16 lock_type,
476 const bool waitFlag);
477extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
478extern int CIFSSMBEcho(struct TCP_Server_Info *server);
479extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
480
481extern struct cifs_ses *sesInfoAlloc(void);
482extern void sesInfoFree(struct cifs_ses *);
483extern struct cifs_tcon *tconInfoAlloc(void);
484extern void tconInfoFree(struct cifs_tcon *);
485
486extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
487 __u32 *pexpected_response_sequence_number);
488extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
489 __u32 *);
490extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
491extern int cifs_verify_signature(struct smb_rqst *rqst,
492 struct TCP_Server_Info *server,
493 __u32 expected_sequence_number);
494extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
495 const struct nls_table *);
496extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
497extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
498extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
499extern int calc_seckey(struct cifs_ses *);
500extern int generate_smb30signingkey(struct cifs_ses *);
501extern int generate_smb311signingkey(struct cifs_ses *);
502
503#ifdef CONFIG_CIFS_WEAK_PW_HASH
504extern int calc_lanman_hash(const char *password, const char *cryptkey,
505 bool encrypt, char *lnm_session_key);
506#endif
507#ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL
508extern int CIFSSMBNotify(const unsigned int xid, struct cifs_tcon *tcon,
509 const int notify_subdirs, const __u16 netfid,
510 __u32 filter, struct file *file, int multishot,
511 const struct nls_table *nls_codepage);
512#endif
513extern int CIFSSMBCopy(unsigned int xid,
514 struct cifs_tcon *source_tcon,
515 const char *fromName,
516 const __u16 target_tid,
517 const char *toName, const int flags,
518 const struct nls_table *nls_codepage,
519 int remap_special_chars);
520extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
521 const unsigned char *searchName,
522 const unsigned char *ea_name, char *EAData,
523 size_t bufsize, struct cifs_sb_info *cifs_sb);
524extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
525 const char *fileName, const char *ea_name,
526 const void *ea_value, const __u16 ea_value_len,
527 const struct nls_table *nls_codepage,
528 struct cifs_sb_info *cifs_sb);
529extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
530 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
531extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
532 struct cifs_ntsd *, __u32, int);
533extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
534 const unsigned char *searchName,
535 char *acl_inf, const int buflen, const int acl_type,
536 const struct nls_table *nls_codepage, int remap_special_chars);
537extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
538 const unsigned char *fileName,
539 const char *local_acl, const int buflen, const int acl_type,
540 const struct nls_table *nls_codepage, int remap_special_chars);
541extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
542 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
543extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
544extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
545extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
546 struct cifs_sb_info *cifs_sb,
547 struct cifs_fattr *fattr,
548 const unsigned char *path);
549extern int mdfour(unsigned char *, unsigned char *, int);
550extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
551 const struct nls_table *codepage);
552extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
553 unsigned char *p24);
554
555extern int
556cifs_setup_volume_info(struct smb3_fs_context *ctx, const char *mntopts, const char *devname);
557
558extern struct TCP_Server_Info *
559cifs_find_tcp_session(struct smb3_fs_context *ctx);
560
561extern void cifs_put_smb_ses(struct cifs_ses *ses);
562
563extern struct cifs_ses *
564cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx);
565
566void cifs_readdata_release(struct kref *refcount);
567int cifs_async_readv(struct cifs_readdata *rdata);
568int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
569
570int cifs_async_writev(struct cifs_writedata *wdata,
571 void (*release)(struct kref *kref));
572void cifs_writev_complete(struct work_struct *work);
573struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
574 work_func_t complete);
575struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
576 work_func_t complete);
577void cifs_writedata_release(struct kref *refcount);
578int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
579 struct cifs_sb_info *cifs_sb,
580 const unsigned char *path, char *pbuf,
581 unsigned int *pbytes_read);
582int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
583 struct cifs_sb_info *cifs_sb,
584 const unsigned char *path, char *pbuf,
585 unsigned int *pbytes_written);
586int __cifs_calc_signature(struct smb_rqst *rqst,
587 struct TCP_Server_Info *server, char *signature,
588 struct shash_desc *shash);
589enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
590 enum securityEnum);
591struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
592void cifs_aio_ctx_release(struct kref *refcount);
593int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
594void smb2_cached_lease_break(struct work_struct *work);
595
596int cifs_alloc_hash(const char *name, struct crypto_shash **shash,
597 struct sdesc **sdesc);
598void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
599
600extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
601 unsigned int *len, unsigned int *offset);
602struct cifs_chan *
603cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
604int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses);
605bool is_server_using_iface(struct TCP_Server_Info *server,
606 struct cifs_server_iface *iface);
607bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
608
609void extract_unc_hostname(const char *unc, const char **h, size_t *len);
610int copy_path_name(char *dst, const char *src);
611int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
612 int resp_buftype,
613 struct cifs_search_info *srch_inf);
614
615struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
616void cifs_put_tcp_super(struct super_block *sb);
617int update_super_prepath(struct cifs_tcon *tcon, char *prefix);
618char *extract_hostname(const char *unc);
619char *extract_sharename(const char *unc);
620
621#ifdef CONFIG_CIFS_DFS_UPCALL
622static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
623 const char *old_path,
624 const struct nls_table *nls_codepage,
625 struct dfs_info3_param *referral, int remap)
626{
627 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
628 referral, NULL);
629}
630
631int match_target_ip(struct TCP_Server_Info *server,
632 const char *share, size_t share_len,
633 bool *result);
634#endif
635
636static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
637{
638 if (cifs_sb && (backup_cred(cifs_sb)))
639 return options | CREATE_OPEN_BACKUP_INTENT;
640 else
641 return options;
642}
643
644#endif
645
