cifsproto.h

Linux内核自带的cifs模块

/*
 *   fs/cifs/cifsproto.h
 *
 *   Copyright (c) International Business Machines  Corp., 2002,2007
 *   Author(s): Steve French ([e-mail])
 *
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published
 *   by the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   This library is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 *   the GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
#ifndef _CIFSPROTO_H
#define _CIFSPROTO_H
#include <linux/nls.h>
#include <linux/version.h>

struct statfs;
struct smb_vol;

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8)
#define kvec iovec
#endif

#ifndef msleep
#define msleep(x) { set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(x * HZ / 1000); }
#endif

#ifndef __user
#define __user
#endif

/*
 *****************************************************************
 * All Prototypes
 *****************************************************************
 */

extern struct smb_hdr *cifs_buf_get(void);
extern void cifs_buf_release(void *);
extern struct smb_hdr *cifs_small_buf_get(void);
extern void cifs_small_buf_release(void *);
extern int smb_send(struct socket *, struct smb_hdr *,
			unsigned int /* length */ , struct sockaddr *);
extern unsigned int _GetXid(void);
extern void _FreeXid(unsigned int);
#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__FUNCTION__, xid,current->fsuid));
#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__FUNCTION__,curr_xid,(int)rc));}
extern char *build_path_from_dentry(struct dentry *);
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
/* extern void renew_parental_timestamps(struct dentry *direntry);*/
extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
			struct smb_hdr * /* input */ ,
			struct smb_hdr * /* out */ ,
			int * /* bytes returned */ , const int long_op);
extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
			struct kvec *, int /* nvec to send */,
			int * /* type of buf returned */ , const int long_op);
extern int SendReceiveBlockingLock(const unsigned int /* xid */ ,
					struct cifsTconInfo *,
				struct smb_hdr * /* input */ ,
				struct smb_hdr * /* out */ ,
				int * /* bytes returned */);
extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
extern int is_valid_oplock_break(struct smb_hdr *smb, struct TCP_Server_Info *);
extern int is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *);
extern unsigned int smbCalcSize(struct smb_hdr *ptr);
extern unsigned int smbCalcSize_LE(struct smb_hdr *ptr);
extern int decode_negTokenInit(unsigned char *security_blob, int length,
			enum securityEnum *secType);
extern int cifs_inet_pton(int, char *source, void *dst);
extern int map_smb_to_linux_error(struct smb_hdr *smb);
extern void header_assemble(struct smb_hdr *, char /* command */ ,
			    const struct cifsTconInfo *, int /* length of
			    fixed section (word count) in two byte units */);
extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
				struct cifsSesInfo *ses,
				void **request_buf);
extern int CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses,
			     const int stage,
			     const struct nls_table *nls_cp);
extern __u16 GetNextMid(struct TCP_Server_Info *server);
extern struct oplock_q_entry *AllocOplockQEntry(struct inode *, u16,
						 struct cifsTconInfo *);
extern void DeleteOplockQEntry(struct oplock_q_entry *);
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
extern struct timespec cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
extern u64 cifs_UnixTimeToNT(struct timespec);
extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
#else
extern u64 cifs_UnixTimeToNT(time_t);
extern time_t cifs_NTtimeToUnix(u64 /* utc nanoseconds since 1601 */ );
extern time_t cnvrtDosUnixTm(__u16 date, __u16 time);
#endif
extern __le64 cnvrtDosCifsTm(__u16 date, __u16 time);

extern int cifs_get_inode_info(struct inode **pinode,
			const unsigned char *search_path,
			FILE_ALL_INFO * pfile_info,
			struct super_block *sb, int xid);
extern int cifs_get_inode_info_unix(struct inode **pinode,
			const unsigned char *search_path,
			struct super_block *sb, int xid);

extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
			const char *);
extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
void cifs_proc_init(void);
void cifs_proc_clean(void);

extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
			struct nls_table *nls_info);
extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses);

extern int CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
			const char *tree, struct cifsTconInfo *tcon,
			const struct nls_table *);

extern int CIFSFindFirst(const int xid, struct cifsTconInfo *tcon,
		const char *searchName, const struct nls_table *nls_codepage,
		__u16 *searchHandle, struct cifs_search_info *psrch_inf,
		int map, const char dirsep);

extern int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
		__u16 searchHandle, struct cifs_search_info *psrch_inf);

extern int CIFSFindClose(const int, struct cifsTconInfo *tcon,
			const __u16 search_handle);

extern int CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
			const unsigned char *searchName,
			FILE_ALL_INFO * findData,
			int legacy /* whether to use old info level */,
			const struct nls_table *nls_codepage, int remap);
extern int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon,
			const unsigned char *searchName,
			FILE_ALL_INFO *findData,
			const struct nls_table *nls_codepage, int remap);

extern int CIFSSMBUnixQPathInfo(const int xid,
			struct cifsTconInfo *tcon,
			const unsigned char *searchName,
			FILE_UNIX_BASIC_INFO * pFindData,
			const struct nls_table *nls_codepage, int remap);

extern int CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses,
			const unsigned char *searchName,
			unsigned char **targetUNCs,
			unsigned int *number_of_UNC_in_array,
			const struct nls_table *nls_codepage, int remap);

extern int connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
			const char *old_path,
			const struct nls_table *nls_codepage, int remap);
extern int get_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
			const char *old_path,
			const struct nls_table *nls_codepage,
			unsigned int *pnum_referrals,
			unsigned char **preferrals,
			int remap);
extern void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
				 struct super_block *sb, struct smb_vol *vol);
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
			struct kstatfs *FSData);
extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon,
			struct kstatfs *FSData);
#else
extern int CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon,
                        struct statfs *FSData);
extern int SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon,
                        struct statfs *FSData);
#endif
extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon,
			__u64 cap);

extern int CIFSSMBQFSAttributeInfo(const int xid,
			struct cifsTconInfo *tcon);
extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon);
extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)
			struct kstatfs *FSData);