path: root/fs/cifs/cifsproto.h

/*
 *   fs/cifs/cifsproto.h
 *
 *   Copyright (c) International Business Machines  Corp., 2002,2008
 *   Author(s): Steve French (sfrench@us.ibm.com)
 *
 *   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>

struct statfs;
struct smb_vol;

/*
 *****************************************************************
 * 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 TCP_Server_Info *, struct smb_hdr *,
			unsigned int /* length */);
extern unsigned int _GetXid(void);
extern void _FreeXid(unsigned int);
#define GetXid()						\
({								\
	int __xid = (int)_GetXid();				\
	cFYI(1, "CIFS VFS: in %s as Xid: %d with uid: %d",	\
	     __func__, __xid, current_fsuid());			\
	__xid;							\
})

#define FreeXid(curr_xid)					\
do {								\
	_FreeXid(curr_xid);					\
	cFYI(1, "CIFS VFS: leaving %s (xid = %d) rc = %d",	\
	     __func__, curr_xid, (int)rc);			\
} while (0)
extern int init_cifs_idmap(void);
extern void exit_cifs_idmap(void);
extern void cifs_destroy_idmaptrees(void);
extern char *build_path_from_dentry(struct dentry *);
extern char *cifs_build_path_to_root(struct cifs_sb_info *cifs_sb,
					struct cifsTconInfo *tcon);
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
extern char *cifs_compose_mount_options(const char *sb_mountdata,
		const char *fullpath, const struct dfs_info3_param *ref,
		char **devname);
/* extern void renew_parental_timestamps(struct dentry *direntry);*/
extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
					struct TCP_Server_Info *server);
extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
extern int cifs_call_async(struct TCP_Server_Info *server,
			   struct smb_hdr *in_buf, mid_callback_t *callback,
			   void *cbdata);
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 SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
			struct smb_hdr *in_buf, int flags);
extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
			struct kvec *, int /* nvec to send */,
			int * /* type of buf returned */ , const int flags);
extern int SendReceiveBlockingLock(const unsigned int xid,
			struct cifsTconInfo *ptcon,
			struct smb_hdr *in_buf ,
			struct smb_hdr *out_buf,
			int *bytes_returned);
extern int checkSMB(struct smb_hdr *smb, __u16 mid, unsigned int length);
extern bool is_valid_oplock_break(struct smb_hdr *smb,
				  struct TCP_Server_Info *);
extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
			    unsigned int bytes_written);
extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
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,
			struct TCP_Server_Info *server);
extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
				const unsigned short int port);
extern int map_smb_to_linux_error(struct smb_hdr *smb, int logErr);
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 struct nls_table *nls_cp);
extern __u16 GetNextMid(struct TCP_Server_Info *server);
extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
extern u64 cifs_UnixTimeToNT(struct timespec);
extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
				      int offset);
extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);

extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
				struct file *file, struct tcon_link *tlink,
				__u32 oplock);
extern int cifs_posix_open(char *full_path, struct inode **pinode,
				struct super_block *sb,
				int mode, unsigned int f_flags,
				__u32 *poplock, __u16 *pnetfid, int xid);
void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
				     FILE_UNIX_BASIC_INFO *info,
				     struct cifs_sb_info *cifs_sb);
extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
extern struct inode *cifs_iget(struct super_block *sb,
			       struct cifs_fattr *fattr);

extern int cifs_get_file_info(struct file *filp);
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, const __u16 *pfid);
extern int cifs_get_file_info_unix(struct file *filp);
extern int cifs_get_inode_info_unix(struct inode **pinode,
			const unsigned char *search_path,
			struct super_block *sb, int xid);
extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
			      struct cifs_fattr *fattr, struct inode *inode,
			      const char *path, const __u16 *pfid);
extern int mode_to_cifs_acl(struct inode *inode, const char *path, __u64);
extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
					const char *, u32 *);
extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
				const char *);

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 *);
extern void cifs_dfs_release_automount_timer(void);
void cifs_proc_init(void);
void cifs_proc_clean(void);

extern int cifs_negotiate_protocol(unsigned int xid,
				  struct cifsSesInfo *ses);
extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *ses,
			struct nls_table *<