NetBSD/sys/nfs/nfsmount.h

123 lines
4.1 KiB
C

/*
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rick Macklem at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)nfsmount.h 7.7 (Berkeley) 4/16/91
*/
#ifndef _NFS_NFSMOUNT_H_
#define _NFS_NFSMOUNT_H_
/*
* Mount structure.
* One allocated on every NFS mount.
* Holds NFS specific information for mount.
*/
struct nfsmount {
int nm_flag; /* Flags for soft/hard... */
struct mount *nm_mountp; /* Vfs structure for this filesystem */
nfsv2fh_t nm_fh; /* File handle of root dir */
struct socket *nm_so; /* Rpc socket */
int nm_sotype; /* Type of socket */
int nm_soproto; /* and protocol */
int nm_soflags; /* pr_flags for socket protocol */
struct mbuf *nm_nam; /* Addr of server */
short nm_retry; /* Max retry count */
short nm_rexmit; /* Rexmit on previous request */
short nm_rtt; /* Round trip timer ticks @ NFS_HZ */
short nm_rto; /* Current timeout */
short nm_srtt; /* Smoothed round trip time */
short nm_rttvar; /* RTT variance */
short nm_currto; /* Current rto of any nfsmount */
short nm_currexmit; /* Max rexmit count of nfsmounts */
short nm_sent; /* Request send count */
short nm_window; /* Request send window (max) */
short nm_winext; /* Window incremental value */
short nm_ssthresh; /* Slowstart threshold */
short nm_salen; /* Actual length of nm_sockaddr */
int nm_rsize; /* Max size of read rpc */
int nm_wsize; /* Max size of write rpc */
};
#ifdef KERNEL
/*
* Convert mount ptr to nfsmount ptr.
*/
#define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data))
#endif /* KERNEL */
/*
* Prototypes for NFS mount operations
*/
int nfs_mount __P((
struct mount *mp,
char *path,
caddr_t data,
struct nameidata *ndp,
struct proc *p));
int nfs_start __P((
struct mount *mp,
int flags,
struct proc *p));
int nfs_unmount __P((
struct mount *mp,
int mntflags,
struct proc *p));
int nfs_root __P((
struct mount *mp,
struct vnode **vpp));
int nfs_quotactl __P((
struct mount *mp,
int cmds,
int uid, /* should be uid_t */
caddr_t arg,
struct proc *p));
int nfs_statfs __P((
struct mount *mp,
struct statfs *sbp,
struct proc *p));
int nfs_sync __P((
struct mount *mp,
int waitfor));
int nfs_fhtovp __P((
struct mount *mp,
struct fid *fhp,
struct vnode **vpp));
int nfs_vptofh __P((
struct vnode *vp,
struct fid *fhp));
int nfs_init __P(());
#endif /* !_NFS_NFSMOUNT_H_ */