764 lines · c
1/* SPDX-License-Identifier: LGPL-2.1 */2/*3 *4 * Copyright (c) International Business Machines Corp., 2002,20085 * Author(s): Steve French (sfrench@us.ibm.com)6 *7 */8#ifndef _CIFSPROTO_H9#define _CIFSPROTO_H10#include <linux/nls.h>11#include <linux/ctype.h>12#include "trace.h"13#ifdef CONFIG_CIFS_DFS_UPCALL14#include "dfs_cache.h"15#endif16 17struct statfs;18struct smb_rqst;19struct smb3_fs_context;20 21/*22 *****************************************************************23 * All Prototypes24 *****************************************************************25 */26 27extern struct smb_hdr *cifs_buf_get(void);28extern void cifs_buf_release(void *);29extern struct smb_hdr *cifs_small_buf_get(void);30extern void cifs_small_buf_release(void *);31extern void free_rsp_buf(int, void *);32extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,33 unsigned int /* length */);34extern unsigned int _get_xid(void);35extern void _free_xid(unsigned int);36#define get_xid() \37({ \38 unsigned int __xid = _get_xid(); \39 cifs_dbg(FYI, "VFS: in %s as Xid: %u with uid: %d\n", \40 __func__, __xid, \41 from_kuid(&init_user_ns, current_fsuid())); \42 trace_smb3_enter(__xid, __func__); \43 __xid; \44})45 46#define free_xid(curr_xid) \47do { \48 _free_xid(curr_xid); \49 cifs_dbg(FYI, "VFS: leaving %s (xid = %u) rc = %d\n", \50 __func__, curr_xid, (int)rc); \51 if (rc) \52 trace_smb3_exit_err(curr_xid, __func__, (int)rc); \53 else \54 trace_smb3_exit_done(curr_xid, __func__); \55} while (0)56extern int init_cifs_idmap(void);57extern void exit_cifs_idmap(void);58extern int init_cifs_spnego(void);59extern void exit_cifs_spnego(void);60extern const char *build_path_from_dentry(struct dentry *, void *);61char *__build_path_from_dentry_optional_prefix(struct dentry *direntry, void *page,62 const char *tree, int tree_len,63 bool prefix);64extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,65 void *page, bool prefix);66static inline void *alloc_dentry_path(void)67{68 return __getname();69}70 71static inline void free_dentry_path(void *page)72{73 if (page)74 __putname(page);75}76 77extern char *cifs_build_path_to_root(struct smb3_fs_context *ctx,78 struct cifs_sb_info *cifs_sb,79 struct cifs_tcon *tcon,80 int add_treename);81extern char *build_wildcard_path_from_dentry(struct dentry *direntry);82char *cifs_build_devname(char *nodename, const char *prepath);83extern void delete_mid(struct mid_q_entry *mid);84void __release_mid(struct kref *refcount);85extern void cifs_wake_up_task(struct mid_q_entry *mid);86extern int cifs_handle_standard(struct TCP_Server_Info *server,87 struct mid_q_entry *mid);88extern char *smb3_fs_context_fullpath(const struct smb3_fs_context *ctx,89 char dirsep);90extern int smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx);91extern int smb3_parse_opt(const char *options, const char *key, char **val);92extern int cifs_ipaddr_cmp(struct sockaddr *srcaddr, struct sockaddr *rhs);93extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);94extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);95extern int cifs_call_async(struct TCP_Server_Info *server,96 struct smb_rqst *rqst,97 mid_receive_t *receive, mid_callback_t *callback,98 mid_handle_t *handle, void *cbdata, const int flags,99 const struct cifs_credits *exist_credits);100extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);101extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,102 struct TCP_Server_Info *server,103 struct smb_rqst *rqst, int *resp_buf_type,104 const int flags, struct kvec *resp_iov);105extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,106 struct TCP_Server_Info *server,107 const int flags, const int num_rqst,108 struct smb_rqst *rqst, int *resp_buf_type,109 struct kvec *resp_iov);110extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,111 struct smb_hdr * /* input */ ,112 struct smb_hdr * /* out */ ,113 int * /* bytes returned */ , const int);114extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,115 char *in_buf, int flags);116extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,117 struct TCP_Server_Info *,118 struct smb_rqst *);119extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,120 struct smb_rqst *);121extern int cifs_check_receive(struct mid_q_entry *mid,122 struct TCP_Server_Info *server, bool log_error);123extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,124 size_t size, size_t *num,125 struct cifs_credits *credits);126extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,127 struct kvec *, int /* nvec to send */,128 int * /* type of buf returned */, const int flags,129 struct kvec * /* resp vec */);130extern int SendReceiveBlockingLock(const unsigned int xid,131 struct cifs_tcon *ptcon,132 struct smb_hdr *in_buf,133 struct smb_hdr *out_buf,134 int *bytes_returned);135 136void137cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,138 bool all_channels);139void140cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server,141 bool mark_smb_session);142extern int cifs_reconnect(struct TCP_Server_Info *server,143 bool mark_smb_session);144extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);145extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);146extern bool backup_cred(struct cifs_sb_info *);147extern bool is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 eof,148 bool from_readdir);149extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,150 unsigned int bytes_written);151void cifs_write_subrequest_terminated(struct cifs_io_subrequest *wdata, ssize_t result,152 bool was_async);153extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);154extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,155 int flags,156 struct cifsFileInfo **ret_file);157extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,158 int flags,159 struct cifsFileInfo **ret_file);160extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);161extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,162 struct cifsFileInfo **ret_file);163extern unsigned int smbCalcSize(void *buf);164extern int decode_negTokenInit(unsigned char *security_blob, int length,165 struct TCP_Server_Info *server);166extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);167extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);168extern int map_smb_to_linux_error(char *buf, bool logErr);169extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);170extern void header_assemble(struct smb_hdr *, char /* command */ ,171 const struct cifs_tcon *, int /* length of172 fixed section (word count) in two byte units */);173extern int small_smb_init_no_tc(const int smb_cmd, const int wct,174 struct cifs_ses *ses,175 void **request_buf);176extern enum securityEnum select_sectype(struct TCP_Server_Info *server,177 enum securityEnum requested);178extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,179 struct TCP_Server_Info *server,180 const struct nls_table *nls_cp);181extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);182extern u64 cifs_UnixTimeToNT(struct timespec64);183extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,184 int offset);185extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);186extern int cifs_get_writer(struct cifsInodeInfo *cinode);187extern void cifs_put_writer(struct cifsInodeInfo *cinode);188extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);189extern int cifs_unlock_range(struct cifsFileInfo *cfile,190 struct file_lock *flock, const unsigned int xid);191extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);192 193extern void cifs_down_write(struct rw_semaphore *sem);194struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,195 struct tcon_link *tlink, __u32 oplock,196 const char *symlink_target);197extern int cifs_posix_open(const char *full_path, struct inode **inode,198 struct super_block *sb, int mode,199 unsigned int f_flags, __u32 *oplock, __u16 *netfid,200 unsigned int xid);201void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);202extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,203 FILE_UNIX_BASIC_INFO *info,204 struct cifs_sb_info *cifs_sb);205extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,206 struct cifs_sb_info *);207extern int cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr,208 bool from_readdir);209extern struct inode *cifs_iget(struct super_block *sb,210 struct cifs_fattr *fattr);211 212int cifs_get_inode_info(struct inode **inode, const char *full_path,213 struct cifs_open_info_data *data, struct super_block *sb, int xid,214 const struct cifs_fid *fid);215extern int smb311_posix_get_inode_info(struct inode **inode,216 const char *full_path,217 struct cifs_open_info_data *data,218 struct super_block *sb,219 const unsigned int xid);220extern int cifs_get_inode_info_unix(struct inode **pinode,221 const unsigned char *search_path,222 struct super_block *sb, unsigned int xid);223extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,224 unsigned int xid, const char *full_path, __u32 dosattr);225extern int cifs_rename_pending_delete(const char *full_path,226 struct dentry *dentry,227 const unsigned int xid);228extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct smb_sid *psid,229 struct cifs_fattr *fattr, uint sidtype);230extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,231 struct cifs_fattr *fattr, struct inode *inode,232 bool get_mode_from_special_sid,233 const char *path, const struct cifs_fid *pfid);234extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,235 kuid_t uid, kgid_t gid);236extern struct smb_ntsd *get_cifs_acl(struct cifs_sb_info *cifssmb, struct inode *ino,237 const char *path, u32 *plen, u32 info);238extern struct smb_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *cifssb,239 const struct cifs_fid *pfid, u32 *plen, u32 info);240extern struct posix_acl *cifs_get_acl(struct mnt_idmap *idmap,241 struct dentry *dentry, int type);242extern int cifs_set_acl(struct mnt_idmap *idmap,243 struct dentry *dentry, struct posix_acl *acl, int type);244extern int set_cifs_acl(struct smb_ntsd *pntsd, __u32 len, struct inode *ino,245 const char *path, int flag);246extern unsigned int setup_authusers_ACE(struct smb_ace *pace);247extern unsigned int setup_special_mode_ACE(struct smb_ace *pace, __u64 nmode);248extern unsigned int setup_special_user_owner_ACE(struct smb_ace *pace);249 250extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);251extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,252 unsigned int to_read);253extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server,254 size_t to_read);255int cifs_read_iter_from_socket(struct TCP_Server_Info *server,256 struct iov_iter *iter,257 unsigned int to_read);258extern int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb);259void cifs_mount_put_conns(struct cifs_mount_ctx *mnt_ctx);260int cifs_mount_get_session(struct cifs_mount_ctx *mnt_ctx);261int cifs_is_path_remote(struct cifs_mount_ctx *mnt_ctx);262int cifs_mount_get_tcon(struct cifs_mount_ctx *mnt_ctx);263extern int cifs_match_super(struct super_block *, void *);264extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx);265extern void cifs_umount(struct cifs_sb_info *);266extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);267extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);268 269extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,270 __u64 length, __u8 type, __u16 flags,271 struct cifsLockInfo **conf_lock,272 int rw_check);273extern void cifs_add_pending_open(struct cifs_fid *fid,274 struct tcon_link *tlink,275 struct cifs_pending_open *open);276extern void cifs_add_pending_open_locked(struct cifs_fid *fid,277 struct tcon_link *tlink,278 struct cifs_pending_open *open);279extern void cifs_del_pending_open(struct cifs_pending_open *open);280 281extern bool cifs_is_deferred_close(struct cifsFileInfo *cfile,282 struct cifs_deferred_close **dclose);283 284extern void cifs_add_deferred_close(struct cifsFileInfo *cfile,285 struct cifs_deferred_close *dclose);286 287extern void cifs_del_deferred_close(struct cifsFileInfo *cfile);288 289extern void cifs_close_deferred_file(struct cifsInodeInfo *cifs_inode);290 291extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);292 293extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon *cifs_tcon,294 const char *path);295 296extern void cifs_mark_open_handles_for_deleted_file(struct inode *inode,297 const char *path);298 299extern struct TCP_Server_Info *300cifs_get_tcp_session(struct smb3_fs_context *ctx,301 struct TCP_Server_Info *primary_server);302extern void cifs_put_tcp_session(struct TCP_Server_Info *server,303 int from_reconnect);304extern void cifs_put_tcon(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace);305 306extern void cifs_release_automount_timer(void);307 308void cifs_proc_init(void);309void cifs_proc_clean(void);310 311extern void cifs_move_llist(struct list_head *source, struct list_head *dest);312extern void cifs_free_llist(struct list_head *llist);313extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);314 315extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,316 const struct nls_table *nlsc);317 318extern int cifs_negotiate_protocol(const unsigned int xid,319 struct cifs_ses *ses,320 struct TCP_Server_Info *server);321extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,322 struct TCP_Server_Info *server,323 struct nls_table *nls_info);324extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);325extern int CIFSSMBNegotiate(const unsigned int xid,326 struct cifs_ses *ses,327 struct TCP_Server_Info *server);328 329extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,330 const char *tree, struct cifs_tcon *tcon,331 const struct nls_table *);332 333extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,334 const char *searchName, struct cifs_sb_info *cifs_sb,335 __u16 *searchHandle, __u16 search_flags,336 struct cifs_search_info *psrch_inf,337 bool msearch);338 339extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,340 __u16 searchHandle, __u16 search_flags,341 struct cifs_search_info *psrch_inf);342 343extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,344 const __u16 search_handle);345 346extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,347 u16 netfid, FILE_ALL_INFO *pFindData);348extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,349 const char *search_Name, FILE_ALL_INFO *data,350 int legacy /* whether to use old info level */,351 const struct nls_table *nls_codepage, int remap);352extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,353 const char *search_name, FILE_ALL_INFO *data,354 const struct nls_table *nls_codepage, int remap);355 356extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,357 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);358extern int CIFSSMBUnixQPathInfo(const unsigned int xid,359 struct cifs_tcon *tcon,360 const unsigned char *searchName,361 FILE_UNIX_BASIC_INFO *pFindData,362 const struct nls_table *nls_codepage, int remap);363 364extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,365 const char *search_name,366 struct dfs_info3_param **target_nodes,367 unsigned int *num_of_nodes,368 const struct nls_table *nls_codepage, int remap);369 370extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,371 unsigned int *num_of_nodes,372 struct dfs_info3_param **target_nodes,373 const struct nls_table *nls_codepage, int remap,374 const char *searchName, bool is_unicode);375extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,376 struct cifs_sb_info *cifs_sb,377 struct smb3_fs_context *ctx);378extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,379 struct kstatfs *FSData);380extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,381 struct kstatfs *FSData);382extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,383 __u64 cap);384 385extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,386 struct cifs_tcon *tcon);387extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);388extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);389extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,390 struct kstatfs *FSData);391 392extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,393 const char *fileName, const FILE_BASIC_INFO *data,394 const struct nls_table *nls_codepage,395 struct cifs_sb_info *cifs_sb);396extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,397 const FILE_BASIC_INFO *data, __u16 fid,398 __u32 pid_of_opener);399extern int CIFSSMBSetFileDisposition(const unsigned int xid,400 struct cifs_tcon *tcon,401 bool delete_file, __u16 fid,402 __u32 pid_of_opener);403extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,404 const char *file_name, __u64 size,405 struct cifs_sb_info *cifs_sb, bool set_allocation,406 struct dentry *dentry);407extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,408 struct cifsFileInfo *cfile, __u64 size,409 bool set_allocation);410 411struct cifs_unix_set_info_args {412 __u64 ctime;413 __u64 atime;414 __u64 mtime;415 __u64 mode;416 kuid_t uid;417 kgid_t gid;418 dev_t device;419};420 421extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,422 struct cifs_tcon *tcon,423 const struct cifs_unix_set_info_args *args,424 u16 fid, u32 pid_of_opener);425 426extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,427 struct cifs_tcon *tcon, const char *file_name,428 const struct cifs_unix_set_info_args *args,429 const struct nls_table *nls_codepage,430 int remap);431 432extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,433 umode_t mode, struct cifs_tcon *tcon,434 const char *name, struct cifs_sb_info *cifs_sb);435extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,436 const char *name, struct cifs_sb_info *cifs_sb);437extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,438 const char *name, __u16 type,439 const struct nls_table *nls_codepage,440 int remap_special_chars);441extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,442 const char *name, struct cifs_sb_info *cifs_sb,443 struct dentry *dentry);444int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,445 struct dentry *source_dentry,446 const char *from_name, const char *to_name,447 struct cifs_sb_info *cifs_sb);448extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,449 int netfid, const char *target_name,450 const struct nls_table *nls_codepage,451 int remap_special_chars);452int CIFSCreateHardLink(const unsigned int xid,453 struct cifs_tcon *tcon,454 struct dentry *source_dentry,455 const char *from_name, const char *to_name,456 struct cifs_sb_info *cifs_sb);457extern int CIFSUnixCreateHardLink(const unsigned int xid,458 struct cifs_tcon *tcon,459 const char *fromName, const char *toName,460 const struct nls_table *nls_codepage,461 int remap_special_chars);462extern int CIFSUnixCreateSymLink(const unsigned int xid,463 struct cifs_tcon *tcon,464 const char *fromName, const char *toName,465 const struct nls_table *nls_codepage, int remap);466extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,467 struct cifs_tcon *tcon,468 const unsigned char *searchName, char **syminfo,469 const struct nls_table *nls_codepage, int remap);470extern int cifs_query_reparse_point(const unsigned int xid,471 struct cifs_tcon *tcon,472 struct cifs_sb_info *cifs_sb,473 const char *full_path,474 u32 *tag, struct kvec *rsp,475 int *rsp_buftype);476extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,477 __u16 fid, char **symlinkinfo,478 const struct nls_table *nls_codepage);479extern int CIFSSMB_set_compression(const unsigned int xid,480 struct cifs_tcon *tcon, __u16 fid);481extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,482 int *oplock, FILE_ALL_INFO *buf);483extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,484 const char *fileName, const int disposition,485 const int access_flags, const int omode,486 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,487 const struct nls_table *nls_codepage, int remap);488extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,489 u32 posix_flags, __u64 mode, __u16 *netfid,490 FILE_UNIX_BASIC_INFO *pRetData,491 __u32 *pOplock, const char *name,492 const struct nls_table *nls_codepage, int remap);493extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,494 const int smb_file_id);495 496extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,497 const int smb_file_id);498 499extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,500 unsigned int *nbytes, char **buf,501 int *return_buf_type);502extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,503 unsigned int *nbytes, const char *buf);504extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,505 unsigned int *nbytes, struct kvec *iov, const int nvec);506extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,507 const char *search_name, __u64 *inode_number,508 const struct nls_table *nls_codepage,509 int remap);510 511extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,512 const __u16 netfid, const __u8 lock_type,513 const __u32 num_unlock, const __u32 num_lock,514 LOCKING_ANDX_RANGE *buf);515extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,516 const __u16 netfid, const __u32 netpid, const __u64 len,517 const __u64 offset, const __u32 numUnlock,518 const __u32 numLock, const __u8 lockType,519 const bool waitFlag, const __u8 oplock_level);520extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,521 const __u16 smb_file_id, const __u32 netpid,522 const loff_t start_offset, const __u64 len,523 struct file_lock *, const __u16 lock_type,524 const bool waitFlag);525extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);526extern int CIFSSMBEcho(struct TCP_Server_Info *server);527extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);528 529extern struct cifs_ses *sesInfoAlloc(void);530extern void sesInfoFree(struct cifs_ses *);531extern struct cifs_tcon *tcon_info_alloc(bool dir_leases_enabled,532 enum smb3_tcon_ref_trace trace);533extern void tconInfoFree(struct cifs_tcon *tcon, enum smb3_tcon_ref_trace trace);534 535extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,536 __u32 *pexpected_response_sequence_number);537extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,538 __u32 *);539extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);540extern int cifs_verify_signature(struct smb_rqst *rqst,541 struct TCP_Server_Info *server,542 __u32 expected_sequence_number);543extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);544extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);545extern int calc_seckey(struct cifs_ses *);546extern int generate_smb30signingkey(struct cifs_ses *ses,547 struct TCP_Server_Info *server);548extern int generate_smb311signingkey(struct cifs_ses *ses,549 struct TCP_Server_Info *server);550 551#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY552extern int CIFSSMBCopy(unsigned int xid,553 struct cifs_tcon *source_tcon,554 const char *fromName,555 const __u16 target_tid,556 const char *toName, const int flags,557 const struct nls_table *nls_codepage,558 int remap_special_chars);559extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,560 const unsigned char *searchName,561 const unsigned char *ea_name, char *EAData,562 size_t bufsize, struct cifs_sb_info *cifs_sb);563extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,564 const char *fileName, const char *ea_name,565 const void *ea_value, const __u16 ea_value_len,566 const struct nls_table *nls_codepage,567 struct cifs_sb_info *cifs_sb);568extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,569 __u16 fid, struct smb_ntsd **acl_inf, __u32 *buflen);570extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,571 struct smb_ntsd *pntsd, __u32 len, int aclflag);572extern int cifs_do_get_acl(const unsigned int xid, struct cifs_tcon *tcon,573 const unsigned char *searchName,574 struct posix_acl **acl, const int acl_type,575 const struct nls_table *nls_codepage, int remap);576extern int cifs_do_set_acl(const unsigned int xid, struct cifs_tcon *tcon,577 const unsigned char *fileName,578 const struct posix_acl *acl, const int acl_type,579 const struct nls_table *nls_codepage, int remap);580extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,581 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);582#endif /* CIFS_ALLOW_INSECURE_LEGACY */583extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);584extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);585extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,586 struct cifs_sb_info *cifs_sb,587 struct cifs_fattr *fattr,588 const unsigned char *path);589extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,590 const struct nls_table *codepage);591 592extern struct TCP_Server_Info *593cifs_find_tcp_session(struct smb3_fs_context *ctx);594 595void __cifs_put_smb_ses(struct cifs_ses *ses);596 597extern struct cifs_ses *598cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx);599 600int cifs_async_readv(struct cifs_io_subrequest *rdata);601int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);602 603void cifs_async_writev(struct cifs_io_subrequest *wdata);604void cifs_writev_complete(struct work_struct *work);605int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,606 struct cifs_sb_info *cifs_sb,607 const unsigned char *path, char *pbuf,608 unsigned int *pbytes_read);609int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,610 struct cifs_sb_info *cifs_sb,611 const unsigned char *path, char *pbuf,612 unsigned int *pbytes_written);613int __cifs_calc_signature(struct smb_rqst *rqst,614 struct TCP_Server_Info *server, char *signature,615 struct shash_desc *shash);616enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,617 enum securityEnum);618 619int cifs_alloc_hash(const char *name, struct shash_desc **sdesc);620void cifs_free_hash(struct shash_desc **sdesc);621 622int cifs_try_adding_channels(struct cifs_ses *ses);623bool is_server_using_iface(struct TCP_Server_Info *server,624 struct cifs_server_iface *iface);625bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);626void cifs_ses_mark_for_reconnect(struct cifs_ses *ses);627 628int629cifs_ses_get_chan_index(struct cifs_ses *ses,630 struct TCP_Server_Info *server);631void632cifs_chan_set_in_reconnect(struct cifs_ses *ses,633 struct TCP_Server_Info *server);634void635cifs_chan_clear_in_reconnect(struct cifs_ses *ses,636 struct TCP_Server_Info *server);637void638cifs_chan_set_need_reconnect(struct cifs_ses *ses,639 struct TCP_Server_Info *server);640void641cifs_chan_clear_need_reconnect(struct cifs_ses *ses,642 struct TCP_Server_Info *server);643bool644cifs_chan_needs_reconnect(struct cifs_ses *ses,645 struct TCP_Server_Info *server);646bool647cifs_chan_is_iface_active(struct cifs_ses *ses,648 struct TCP_Server_Info *server);649void650cifs_disable_secondary_channels(struct cifs_ses *ses);651void652cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server);653int654SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount);655 656void extract_unc_hostname(const char *unc, const char **h, size_t *len);657int copy_path_name(char *dst, const char *src);658int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,659 int resp_buftype,660 struct cifs_search_info *srch_inf);661 662struct super_block *cifs_get_dfs_tcon_super(struct cifs_tcon *tcon);663void cifs_put_tcp_super(struct super_block *sb);664int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix);665char *extract_hostname(const char *unc);666char *extract_sharename(const char *unc);667int parse_reparse_point(struct reparse_data_buffer *buf,668 u32 plen, struct cifs_sb_info *cifs_sb,669 bool unicode, struct cifs_open_info_data *data);670int __cifs_sfu_make_node(unsigned int xid, struct inode *inode,671 struct dentry *dentry, struct cifs_tcon *tcon,672 const char *full_path, umode_t mode, dev_t dev,673 const char *symname);674int cifs_sfu_make_node(unsigned int xid, struct inode *inode,675 struct dentry *dentry, struct cifs_tcon *tcon,676 const char *full_path, umode_t mode, dev_t dev);677 678#ifdef CONFIG_CIFS_DFS_UPCALL679static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,680 const char *old_path,681 const struct nls_table *nls_codepage,682 struct dfs_info3_param *referral, int remap)683{684 return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,685 referral, NULL);686}687 688int match_target_ip(struct TCP_Server_Info *server,689 const char *share, size_t share_len,690 bool *result);691int cifs_inval_name_dfs_link_error(const unsigned int xid,692 struct cifs_tcon *tcon,693 struct cifs_sb_info *cifs_sb,694 const char *full_path,695 bool *islink);696#else697static inline int cifs_inval_name_dfs_link_error(const unsigned int xid,698 struct cifs_tcon *tcon,699 struct cifs_sb_info *cifs_sb,700 const char *full_path,701 bool *islink)702{703 *islink = false;704 return 0;705}706#endif707 708static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)709{710 if (cifs_sb && (backup_cred(cifs_sb)))711 return options | CREATE_OPEN_BACKUP_INTENT;712 else713 return options;714}715 716int cifs_wait_for_server_reconnect(struct TCP_Server_Info *server, bool retry);717 718static inline void cifs_put_smb_ses(struct cifs_ses *ses)719{720 __cifs_put_smb_ses(ses);721}722 723/* Get an active reference of @ses and its children.724 *725 * NOTE: make sure to call this function when incrementing reference count of726 * @ses to ensure that any DFS root session attached to it (@ses->dfs_root_ses)727 * will also get its reference count incremented.728 *729 * cifs_put_smb_ses() will put all references, so call it when you're done.730 */731static inline void cifs_smb_ses_inc_refcount(struct cifs_ses *ses)732{733 lockdep_assert_held(&cifs_tcp_ses_lock);734 ses->ses_count++;735}736 737static inline bool dfs_src_pathname_equal(const char *s1, const char *s2)738{739 if (strlen(s1) != strlen(s2))740 return false;741 for (; *s1; s1++, s2++) {742 if (*s1 == '/' || *s1 == '\\') {743 if (*s2 != '/' && *s2 != '\\')744 return false;745 } else if (tolower(*s1) != tolower(*s2))746 return false;747 }748 return true;749}750 751static inline void release_mid(struct mid_q_entry *mid)752{753 kref_put(&mid->refcount, __release_mid);754}755 756static inline void cifs_free_open_info(struct cifs_open_info_data *data)757{758 kfree(data->symlink_target);759 free_rsp_buf(data->reparse.io.buftype, data->reparse.io.iov.iov_base);760 memset(data, 0, sizeof(*data));761}762 763#endif /* _CIFSPROTO_H */764