forked from Minki/linux
76894f3e2f
When creating inode for symlink, the client used to send below
requests to fill it in:
* create+query_info+close (STATUS_STOPPED_ON_SYMLINK)
* create(+reparse_flag)+query_info+close (set file attrs)
* create+ioctl(get_reparse)+close (query reparse tag)
and then for every access to the symlink dentry, the ->link() method
would send another:
* create+ioctl(get_reparse)+close (parse symlink)
So, in order to improve:
(i) Get rid of unnecessary roundtrips and then resolve symlinks as
follows:
* create+query_info+close (STATUS_STOPPED_ON_SYMLINK +
parse symlink + get reparse tag)
* create(+reparse_flag)+query_info+close (set file attrs)
(ii) Set the resolved symlink target directly in inode->i_link and
use simple_get_link() for ->link() to simply return it.
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
686 lines
29 KiB
C
686 lines
29 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 */
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/*
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*
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* Copyright (c) International Business Machines Corp., 2002,2008
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* Author(s): Steve French (sfrench@us.ibm.com)
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*
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*/
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#ifndef _CIFSPROTO_H
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#define _CIFSPROTO_H
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#include <linux/nls.h>
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#include "trace.h"
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#ifdef CONFIG_CIFS_DFS_UPCALL
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#include "dfs_cache.h"
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#endif
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struct statfs;
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struct smb_rqst;
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struct smb3_fs_context;
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/*
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*****************************************************************
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* All Prototypes
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*****************************************************************
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*/
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extern struct smb_hdr *cifs_buf_get(void);
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extern void cifs_buf_release(void *);
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extern struct smb_hdr *cifs_small_buf_get(void);
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extern void cifs_small_buf_release(void *);
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extern void free_rsp_buf(int, void *);
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extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
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unsigned int /* length */);
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extern unsigned int _get_xid(void);
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extern void _free_xid(unsigned int);
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#define get_xid() \
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({ \
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unsigned int __xid = _get_xid(); \
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cifs_dbg(FYI, "VFS: in %s as Xid: %u with uid: %d\n", \
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__func__, __xid, \
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from_kuid(&init_user_ns, current_fsuid())); \
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trace_smb3_enter(__xid, __func__); \
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__xid; \
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})
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#define free_xid(curr_xid) \
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do { \
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_free_xid(curr_xid); \
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cifs_dbg(FYI, "VFS: leaving %s (xid = %u) rc = %d\n", \
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__func__, curr_xid, (int)rc); \
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if (rc) \
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trace_smb3_exit_err(curr_xid, __func__, (int)rc); \
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else \
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trace_smb3_exit_done(curr_xid, __func__); \
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} while (0)
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extern int init_cifs_idmap(void);
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extern void exit_cifs_idmap(void);
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extern int init_cifs_spnego(void);
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extern void exit_cifs_spnego(void);
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extern const char *build_path_from_dentry(struct dentry *, void *);
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extern char *build_path_from_dentry_optional_prefix(struct dentry *direntry,
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void *page, bool prefix);
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static inline void *alloc_dentry_path(void)
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{
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return __getname();
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}
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static inline void free_dentry_path(void *page)
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{
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if (page)
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__putname(page);
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}
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extern char *cifs_build_path_to_root(struct smb3_fs_context *ctx,
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struct cifs_sb_info *cifs_sb,
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struct cifs_tcon *tcon,
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int add_treename);
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extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
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extern char *cifs_compose_mount_options(const char *sb_mountdata,
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const char *fullpath, const struct dfs_info3_param *ref,
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char **devname);
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extern void delete_mid(struct mid_q_entry *mid);
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extern void release_mid(struct mid_q_entry *mid);
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extern void cifs_wake_up_task(struct mid_q_entry *mid);
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extern int cifs_handle_standard(struct TCP_Server_Info *server,
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struct mid_q_entry *mid);
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extern int smb3_parse_devname(const char *devname, struct smb3_fs_context *ctx);
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extern int smb3_parse_opt(const char *options, const char *key, char **val);
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extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
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extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
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extern int cifs_call_async(struct TCP_Server_Info *server,
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struct smb_rqst *rqst,
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mid_receive_t *receive, mid_callback_t *callback,
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mid_handle_t *handle, void *cbdata, const int flags,
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const struct cifs_credits *exist_credits);
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extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
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extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
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struct TCP_Server_Info *server,
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struct smb_rqst *rqst, int *resp_buf_type,
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const int flags, struct kvec *resp_iov);
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extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
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struct TCP_Server_Info *server,
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const int flags, const int num_rqst,
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struct smb_rqst *rqst, int *resp_buf_type,
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struct kvec *resp_iov);
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extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
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struct smb_hdr * /* input */ ,
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struct smb_hdr * /* out */ ,
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int * /* bytes returned */ , const int);
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extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
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char *in_buf, int flags);
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extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
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struct TCP_Server_Info *,
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struct smb_rqst *);
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extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
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struct smb_rqst *);
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extern int cifs_check_receive(struct mid_q_entry *mid,
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struct TCP_Server_Info *server, bool log_error);
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extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
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unsigned int size, unsigned int *num,
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struct cifs_credits *credits);
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extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
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struct kvec *, int /* nvec to send */,
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int * /* type of buf returned */, const int flags,
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struct kvec * /* resp vec */);
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extern int SendReceiveBlockingLock(const unsigned int xid,
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struct cifs_tcon *ptcon,
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struct smb_hdr *in_buf ,
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struct smb_hdr *out_buf,
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int *bytes_returned);
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void
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cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,
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bool all_channels);
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void
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cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server,
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bool mark_smb_session);
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extern int cifs_reconnect(struct TCP_Server_Info *server,
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bool mark_smb_session);
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extern int checkSMB(char *buf, unsigned int len, struct TCP_Server_Info *srvr);
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extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
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extern bool backup_cred(struct cifs_sb_info *);
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extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
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extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
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unsigned int bytes_written);
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extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
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extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
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int flags,
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struct cifsFileInfo **ret_file);
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extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
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int flags,
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struct cifsFileInfo **ret_file);
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extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
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extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
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struct cifsFileInfo **ret_file);
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extern unsigned int smbCalcSize(void *buf);
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extern int decode_negTokenInit(unsigned char *security_blob, int length,
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struct TCP_Server_Info *server);
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extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
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extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
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extern int map_smb_to_linux_error(char *buf, bool logErr);
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extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
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extern void header_assemble(struct smb_hdr *, char /* command */ ,
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const struct cifs_tcon *, int /* length of
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fixed section (word count) in two byte units */);
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extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
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struct cifs_ses *ses,
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void **request_buf);
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extern enum securityEnum select_sectype(struct TCP_Server_Info *server,
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enum securityEnum requested);
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extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
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struct TCP_Server_Info *server,
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const struct nls_table *nls_cp);
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extern struct timespec64 cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
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extern u64 cifs_UnixTimeToNT(struct timespec64);
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extern struct timespec64 cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
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int offset);
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extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
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extern int cifs_get_writer(struct cifsInodeInfo *cinode);
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extern void cifs_put_writer(struct cifsInodeInfo *cinode);
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extern void cifs_done_oplock_break(struct cifsInodeInfo *cinode);
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extern int cifs_unlock_range(struct cifsFileInfo *cfile,
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struct file_lock *flock, const unsigned int xid);
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extern int cifs_push_mandatory_locks(struct cifsFileInfo *cfile);
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extern void cifs_down_write(struct rw_semaphore *sem);
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struct cifsFileInfo *cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
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struct tcon_link *tlink, __u32 oplock,
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const char *symlink_target);
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extern int cifs_posix_open(const char *full_path, struct inode **inode,
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struct super_block *sb, int mode,
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unsigned int f_flags, __u32 *oplock, __u16 *netfid,
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unsigned int xid);
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void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
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extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
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FILE_UNIX_BASIC_INFO *info,
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struct cifs_sb_info *cifs_sb);
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extern void cifs_dir_info_to_fattr(struct cifs_fattr *, FILE_DIRECTORY_INFO *,
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struct cifs_sb_info *);
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extern int cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
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extern struct inode *cifs_iget(struct super_block *sb,
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struct cifs_fattr *fattr);
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int cifs_get_inode_info(struct inode **inode, const char *full_path,
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struct cifs_open_info_data *data, struct super_block *sb, int xid,
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const struct cifs_fid *fid);
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extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
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struct super_block *sb, unsigned int xid);
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extern int cifs_get_inode_info_unix(struct inode **pinode,
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const unsigned char *search_path,
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struct super_block *sb, unsigned int xid);
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extern int cifs_set_file_info(struct inode *inode, struct iattr *attrs,
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unsigned int xid, const char *full_path, __u32 dosattr);
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extern int cifs_rename_pending_delete(const char *full_path,
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struct dentry *dentry,
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const unsigned int xid);
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extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct cifs_sid *psid,
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struct cifs_fattr *fattr, uint sidtype);
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extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
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struct cifs_fattr *fattr, struct inode *inode,
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bool get_mode_from_special_sid,
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const char *path, const struct cifs_fid *pfid);
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extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 *pnmode,
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kuid_t uid, kgid_t gid);
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extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
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const char *, u32 *, u32);
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extern struct cifs_ntsd *get_cifs_acl_by_fid(struct cifs_sb_info *,
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const struct cifs_fid *, u32 *, u32);
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extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
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const char *, int);
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extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
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extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
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extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace);
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extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
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extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
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unsigned int to_read);
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extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server,
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size_t to_read);
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extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
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struct page *page,
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unsigned int page_offset,
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unsigned int to_read);
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extern int cifs_setup_cifs_sb(struct cifs_sb_info *cifs_sb);
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extern int cifs_match_super(struct super_block *, void *);
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extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb3_fs_context *ctx);
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extern void cifs_umount(struct cifs_sb_info *);
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extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
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extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
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extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
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__u64 length, __u8 type, __u16 flags,
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struct cifsLockInfo **conf_lock,
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int rw_check);
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extern void cifs_add_pending_open(struct cifs_fid *fid,
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struct tcon_link *tlink,
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struct cifs_pending_open *open);
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extern void cifs_add_pending_open_locked(struct cifs_fid *fid,
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struct tcon_link *tlink,
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struct cifs_pending_open *open);
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extern void cifs_del_pending_open(struct cifs_pending_open *open);
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extern bool cifs_is_deferred_close(struct cifsFileInfo *cfile,
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struct cifs_deferred_close **dclose);
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extern void cifs_add_deferred_close(struct cifsFileInfo *cfile,
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struct cifs_deferred_close *dclose);
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extern void cifs_del_deferred_close(struct cifsFileInfo *cfile);
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extern void cifs_close_deferred_file(struct cifsInodeInfo *cifs_inode);
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extern void cifs_close_all_deferred_files(struct cifs_tcon *cifs_tcon);
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extern void cifs_close_deferred_file_under_dentry(struct cifs_tcon *cifs_tcon,
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const char *path);
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extern struct TCP_Server_Info *
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cifs_get_tcp_session(struct smb3_fs_context *ctx,
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struct TCP_Server_Info *primary_server);
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extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
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int from_reconnect);
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extern void cifs_put_tcon(struct cifs_tcon *tcon);
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#if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
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extern void cifs_dfs_release_automount_timer(void);
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#else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
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#define cifs_dfs_release_automount_timer() do { } while (0)
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#endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
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void cifs_proc_init(void);
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void cifs_proc_clean(void);
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extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
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extern void cifs_free_llist(struct list_head *llist);
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extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
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extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
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const struct nls_table *nlsc);
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extern int cifs_negotiate_protocol(const unsigned int xid,
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struct cifs_ses *ses,
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struct TCP_Server_Info *server);
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extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
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struct TCP_Server_Info *server,
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struct nls_table *nls_info);
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extern int cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required);
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extern int CIFSSMBNegotiate(const unsigned int xid,
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struct cifs_ses *ses,
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struct TCP_Server_Info *server);
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extern int CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
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const char *tree, struct cifs_tcon *tcon,
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const struct nls_table *);
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extern int CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
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const char *searchName, struct cifs_sb_info *cifs_sb,
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__u16 *searchHandle, __u16 search_flags,
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struct cifs_search_info *psrch_inf,
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bool msearch);
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extern int CIFSFindNext(const unsigned int xid, struct cifs_tcon *tcon,
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__u16 searchHandle, __u16 search_flags,
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struct cifs_search_info *psrch_inf);
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extern int CIFSFindClose(const unsigned int xid, struct cifs_tcon *tcon,
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const __u16 search_handle);
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extern int CIFSSMBQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
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u16 netfid, FILE_ALL_INFO *pFindData);
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extern int CIFSSMBQPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
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const char *search_Name, FILE_ALL_INFO *data,
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int legacy /* whether to use old info level */,
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const struct nls_table *nls_codepage, int remap);
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extern int SMBQueryInformation(const unsigned int xid, struct cifs_tcon *tcon,
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const char *search_name, FILE_ALL_INFO *data,
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const struct nls_table *nls_codepage, int remap);
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extern int CIFSSMBUnixQFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
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u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
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extern int CIFSSMBUnixQPathInfo(const unsigned int xid,
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struct cifs_tcon *tcon,
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const unsigned char *searchName,
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FILE_UNIX_BASIC_INFO *pFindData,
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const struct nls_table *nls_codepage, int remap);
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extern int CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses,
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const char *search_name,
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struct dfs_info3_param **target_nodes,
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unsigned int *num_of_nodes,
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const struct nls_table *nls_codepage, int remap);
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extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
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unsigned int *num_of_nodes,
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struct dfs_info3_param **target_nodes,
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const struct nls_table *nls_codepage, int remap,
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const char *searchName, bool is_unicode);
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extern void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
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struct cifs_sb_info *cifs_sb,
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struct smb3_fs_context *ctx);
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extern int CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
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struct kstatfs *FSData);
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extern int SMBOldQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
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struct kstatfs *FSData);
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extern int CIFSSMBSetFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon,
|
|
__u64 cap);
|
|
|
|
extern int CIFSSMBQFSAttributeInfo(const unsigned int xid,
|
|
struct cifs_tcon *tcon);
|
|
extern int CIFSSMBQFSDeviceInfo(const unsigned int xid, struct cifs_tcon *tcon);
|
|
extern int CIFSSMBQFSUnixInfo(const unsigned int xid, struct cifs_tcon *tcon);
|
|
extern int CIFSSMBQFSPosixInfo(const unsigned int xid, struct cifs_tcon *tcon,
|
|
struct kstatfs *FSData);
|
|
|
|
extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *fileName, const FILE_BASIC_INFO *data,
|
|
const struct nls_table *nls_codepage,
|
|
struct cifs_sb_info *cifs_sb);
|
|
extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const FILE_BASIC_INFO *data, __u16 fid,
|
|
__u32 pid_of_opener);
|
|
extern int CIFSSMBSetFileDisposition(const unsigned int xid,
|
|
struct cifs_tcon *tcon,
|
|
bool delete_file, __u16 fid,
|
|
__u32 pid_of_opener);
|
|
extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *file_name, __u64 size,
|
|
struct cifs_sb_info *cifs_sb, bool set_allocation);
|
|
extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
|
|
struct cifsFileInfo *cfile, __u64 size,
|
|
bool set_allocation);
|
|
|
|
struct cifs_unix_set_info_args {
|
|
__u64 ctime;
|
|
__u64 atime;
|
|
__u64 mtime;
|
|
__u64 mode;
|
|
kuid_t uid;
|
|
kgid_t gid;
|
|
dev_t device;
|
|
};
|
|
|
|
extern int CIFSSMBUnixSetFileInfo(const unsigned int xid,
|
|
struct cifs_tcon *tcon,
|
|
const struct cifs_unix_set_info_args *args,
|
|
u16 fid, u32 pid_of_opener);
|
|
|
|
extern int CIFSSMBUnixSetPathInfo(const unsigned int xid,
|
|
struct cifs_tcon *tcon, const char *file_name,
|
|
const struct cifs_unix_set_info_args *args,
|
|
const struct nls_table *nls_codepage,
|
|
int remap);
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|
|
|
extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
|
|
umode_t mode, struct cifs_tcon *tcon,
|
|
const char *name, struct cifs_sb_info *cifs_sb);
|
|
extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *name, struct cifs_sb_info *cifs_sb);
|
|
extern int CIFSPOSIXDelFile(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *name, __u16 type,
|
|
const struct nls_table *nls_codepage,
|
|
int remap_special_chars);
|
|
extern int CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *name, struct cifs_sb_info *cifs_sb);
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|
extern int CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *from_name, const char *to_name,
|
|
struct cifs_sb_info *cifs_sb);
|
|
extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon,
|
|
int netfid, const char *target_name,
|
|
const struct nls_table *nls_codepage,
|
|
int remap_special_chars);
|
|
extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *from_name, const char *to_name,
|
|
struct cifs_sb_info *cifs_sb);
|
|
extern int CIFSUnixCreateHardLink(const unsigned int xid,
|
|
struct cifs_tcon *tcon,
|
|
const char *fromName, const char *toName,
|
|
const struct nls_table *nls_codepage,
|
|
int remap_special_chars);
|
|
extern int CIFSUnixCreateSymLink(const unsigned int xid,
|
|
struct cifs_tcon *tcon,
|
|
const char *fromName, const char *toName,
|
|
const struct nls_table *nls_codepage, int remap);
|
|
extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
|
|
struct cifs_tcon *tcon,
|
|
const unsigned char *searchName, char **syminfo,
|
|
const struct nls_table *nls_codepage, int remap);
|
|
extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
|
|
__u16 fid, char **symlinkinfo,
|
|
const struct nls_table *nls_codepage);
|
|
extern int CIFSSMB_set_compression(const unsigned int xid,
|
|
struct cifs_tcon *tcon, __u16 fid);
|
|
extern int CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms,
|
|
int *oplock, FILE_ALL_INFO *buf);
|
|
extern int SMBLegacyOpen(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *fileName, const int disposition,
|
|
const int access_flags, const int omode,
|
|
__u16 *netfid, int *pOplock, FILE_ALL_INFO *,
|
|
const struct nls_table *nls_codepage, int remap);
|
|
extern int CIFSPOSIXCreate(const unsigned int xid, struct cifs_tcon *tcon,
|
|
u32 posix_flags, __u64 mode, __u16 *netfid,
|
|
FILE_UNIX_BASIC_INFO *pRetData,
|
|
__u32 *pOplock, const char *name,
|
|
const struct nls_table *nls_codepage, int remap);
|
|
extern int CIFSSMBClose(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const int smb_file_id);
|
|
|
|
extern int CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const int smb_file_id);
|
|
|
|
extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
|
|
unsigned int *nbytes, char **buf,
|
|
int *return_buf_type);
|
|
extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
|
|
unsigned int *nbytes, const char *buf);
|
|
extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
|
|
unsigned int *nbytes, struct kvec *iov, const int nvec);
|
|
extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *search_name, __u64 *inode_number,
|
|
const struct nls_table *nls_codepage,
|
|
int remap);
|
|
|
|
extern int cifs_lockv(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const __u16 netfid, const __u8 lock_type,
|
|
const __u32 num_unlock, const __u32 num_lock,
|
|
LOCKING_ANDX_RANGE *buf);
|
|
extern int CIFSSMBLock(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const __u16 netfid, const __u32 netpid, const __u64 len,
|
|
const __u64 offset, const __u32 numUnlock,
|
|
const __u32 numLock, const __u8 lockType,
|
|
const bool waitFlag, const __u8 oplock_level);
|
|
extern int CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const __u16 smb_file_id, const __u32 netpid,
|
|
const loff_t start_offset, const __u64 len,
|
|
struct file_lock *, const __u16 lock_type,
|
|
const bool waitFlag);
|
|
extern int CIFSSMBTDis(const unsigned int xid, struct cifs_tcon *tcon);
|
|
extern int CIFSSMBEcho(struct TCP_Server_Info *server);
|
|
extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
|
|
|
|
extern struct cifs_ses *sesInfoAlloc(void);
|
|
extern void sesInfoFree(struct cifs_ses *);
|
|
extern struct cifs_tcon *tconInfoAlloc(void);
|
|
extern void tconInfoFree(struct cifs_tcon *);
|
|
|
|
extern int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,
|
|
__u32 *pexpected_response_sequence_number);
|
|
extern int cifs_sign_smbv(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
|
|
__u32 *);
|
|
extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
|
|
extern int cifs_verify_signature(struct smb_rqst *rqst,
|
|
struct TCP_Server_Info *server,
|
|
__u32 expected_sequence_number);
|
|
extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
|
|
extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
|
|
extern int calc_seckey(struct cifs_ses *);
|
|
extern int generate_smb30signingkey(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
extern int generate_smb311signingkey(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
|
|
#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
|
|
extern int CIFSSMBCopy(unsigned int xid,
|
|
struct cifs_tcon *source_tcon,
|
|
const char *fromName,
|
|
const __u16 target_tid,
|
|
const char *toName, const int flags,
|
|
const struct nls_table *nls_codepage,
|
|
int remap_special_chars);
|
|
extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const unsigned char *searchName,
|
|
const unsigned char *ea_name, char *EAData,
|
|
size_t bufsize, struct cifs_sb_info *cifs_sb);
|
|
extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const char *fileName, const char *ea_name,
|
|
const void *ea_value, const __u16 ea_value_len,
|
|
const struct nls_table *nls_codepage,
|
|
struct cifs_sb_info *cifs_sb);
|
|
extern int CIFSSMBGetCIFSACL(const unsigned int xid, struct cifs_tcon *tcon,
|
|
__u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
|
|
extern int CIFSSMBSetCIFSACL(const unsigned int, struct cifs_tcon *, __u16,
|
|
struct cifs_ntsd *, __u32, int);
|
|
extern int CIFSSMBGetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const unsigned char *searchName,
|
|
char *acl_inf, const int buflen, const int acl_type,
|
|
const struct nls_table *nls_codepage, int remap_special_chars);
|
|
extern int CIFSSMBSetPosixACL(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const unsigned char *fileName,
|
|
const char *local_acl, const int buflen, const int acl_type,
|
|
const struct nls_table *nls_codepage, int remap_special_chars);
|
|
extern int CIFSGetExtAttr(const unsigned int xid, struct cifs_tcon *tcon,
|
|
const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
|
|
#endif /* CIFS_ALLOW_INSECURE_LEGACY */
|
|
extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
|
|
extern bool couldbe_mf_symlink(const struct cifs_fattr *fattr);
|
|
extern int check_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
|
|
struct cifs_sb_info *cifs_sb,
|
|
struct cifs_fattr *fattr,
|
|
const unsigned char *path);
|
|
extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
|
|
const struct nls_table *codepage);
|
|
|
|
extern int
|
|
cifs_setup_volume_info(struct smb3_fs_context *ctx, const char *mntopts, const char *devname);
|
|
|
|
extern struct TCP_Server_Info *
|
|
cifs_find_tcp_session(struct smb3_fs_context *ctx);
|
|
|
|
extern void cifs_put_smb_ses(struct cifs_ses *ses);
|
|
|
|
extern struct cifs_ses *
|
|
cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx);
|
|
|
|
void cifs_readdata_release(struct kref *refcount);
|
|
int cifs_async_readv(struct cifs_readdata *rdata);
|
|
int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
|
|
|
|
int cifs_async_writev(struct cifs_writedata *wdata,
|
|
void (*release)(struct kref *kref));
|
|
void cifs_writev_complete(struct work_struct *work);
|
|
struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
|
|
work_func_t complete);
|
|
struct cifs_writedata *cifs_writedata_direct_alloc(struct page **pages,
|
|
work_func_t complete);
|
|
void cifs_writedata_release(struct kref *refcount);
|
|
int cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
|
|
struct cifs_sb_info *cifs_sb,
|
|
const unsigned char *path, char *pbuf,
|
|
unsigned int *pbytes_read);
|
|
int cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
|
|
struct cifs_sb_info *cifs_sb,
|
|
const unsigned char *path, char *pbuf,
|
|
unsigned int *pbytes_written);
|
|
int __cifs_calc_signature(struct smb_rqst *rqst,
|
|
struct TCP_Server_Info *server, char *signature,
|
|
struct shash_desc *shash);
|
|
enum securityEnum cifs_select_sectype(struct TCP_Server_Info *,
|
|
enum securityEnum);
|
|
struct cifs_aio_ctx *cifs_aio_ctx_alloc(void);
|
|
void cifs_aio_ctx_release(struct kref *refcount);
|
|
int setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw);
|
|
|
|
int cifs_alloc_hash(const char *name, struct shash_desc **sdesc);
|
|
void cifs_free_hash(struct shash_desc **sdesc);
|
|
|
|
extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
|
|
unsigned int *len, unsigned int *offset);
|
|
struct cifs_chan *
|
|
cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
|
|
int cifs_try_adding_channels(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses);
|
|
bool is_server_using_iface(struct TCP_Server_Info *server,
|
|
struct cifs_server_iface *iface);
|
|
bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
|
|
void cifs_ses_mark_for_reconnect(struct cifs_ses *ses);
|
|
|
|
unsigned int
|
|
cifs_ses_get_chan_index(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
void
|
|
cifs_chan_set_in_reconnect(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
void
|
|
cifs_chan_clear_in_reconnect(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
bool
|
|
cifs_chan_in_reconnect(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
void
|
|
cifs_chan_set_need_reconnect(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
void
|
|
cifs_chan_clear_need_reconnect(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
bool
|
|
cifs_chan_needs_reconnect(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
bool
|
|
cifs_chan_is_iface_active(struct cifs_ses *ses,
|
|
struct TCP_Server_Info *server);
|
|
int
|
|
cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server);
|
|
int
|
|
SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon, bool in_mount);
|
|
|
|
void extract_unc_hostname(const char *unc, const char **h, size_t *len);
|
|
int copy_path_name(char *dst, const char *src);
|
|
int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
|
|
int resp_buftype,
|
|
struct cifs_search_info *srch_inf);
|
|
|
|
struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
|
|
void cifs_put_tcp_super(struct super_block *sb);
|
|
int cifs_update_super_prepath(struct cifs_sb_info *cifs_sb, char *prefix);
|
|
char *extract_hostname(const char *unc);
|
|
char *extract_sharename(const char *unc);
|
|
|
|
#ifdef CONFIG_CIFS_DFS_UPCALL
|
|
static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
|
|
const char *old_path,
|
|
const struct nls_table *nls_codepage,
|
|
struct dfs_info3_param *referral, int remap)
|
|
{
|
|
return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
|
|
referral, NULL);
|
|
}
|
|
|
|
int match_target_ip(struct TCP_Server_Info *server,
|
|
const char *share, size_t share_len,
|
|
bool *result);
|
|
|
|
int cifs_dfs_query_info_nonascii_quirk(const unsigned int xid,
|
|
struct cifs_tcon *tcon,
|
|
struct cifs_sb_info *cifs_sb,
|
|
const char *dfs_link_path);
|
|
#endif
|
|
|
|
static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
|
|
{
|
|
if (cifs_sb && (backup_cred(cifs_sb)))
|
|
return options | CREATE_OPEN_BACKUP_INTENT;
|
|
else
|
|
return options;
|
|
}
|
|
|
|
struct super_block *cifs_get_tcon_super(struct cifs_tcon *tcon);
|
|
void cifs_put_tcon_super(struct super_block *sb);
|
|
|
|
#endif /* _CIFSPROTO_H */
|