1993-04-20 15:20:47 +04:00
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/*
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* Copyright (c) 1989 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rick Macklem at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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1993-05-20 07:18:35 +04:00
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* from: @(#)nfsmount.h 7.7 (Berkeley) 4/16/91
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* $Id: nfsmount.h,v 1.2 1993/05/20 03:19:09 cgd Exp $
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1993-04-20 15:20:47 +04:00
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*/
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#ifndef _NFS_NFSMOUNT_H_
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#define _NFS_NFSMOUNT_H_
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/*
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* Mount structure.
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* One allocated on every NFS mount.
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* Holds NFS specific information for mount.
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*/
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struct nfsmount {
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int nm_flag; /* Flags for soft/hard... */
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struct mount *nm_mountp; /* Vfs structure for this filesystem */
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nfsv2fh_t nm_fh; /* File handle of root dir */
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struct socket *nm_so; /* Rpc socket */
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int nm_sotype; /* Type of socket */
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int nm_soproto; /* and protocol */
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int nm_soflags; /* pr_flags for socket protocol */
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struct mbuf *nm_nam; /* Addr of server */
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short nm_retry; /* Max retry count */
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short nm_rexmit; /* Rexmit on previous request */
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short nm_rtt; /* Round trip timer ticks @ NFS_HZ */
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short nm_rto; /* Current timeout */
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short nm_srtt; /* Smoothed round trip time */
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short nm_rttvar; /* RTT variance */
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short nm_currto; /* Current rto of any nfsmount */
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short nm_currexmit; /* Max rexmit count of nfsmounts */
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short nm_sent; /* Request send count */
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short nm_window; /* Request send window (max) */
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short nm_winext; /* Window incremental value */
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short nm_ssthresh; /* Slowstart threshold */
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short nm_salen; /* Actual length of nm_sockaddr */
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int nm_rsize; /* Max size of read rpc */
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int nm_wsize; /* Max size of write rpc */
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};
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#ifdef KERNEL
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/*
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* Convert mount ptr to nfsmount ptr.
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*/
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#define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data))
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#endif /* KERNEL */
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/*
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* Prototypes for NFS mount operations
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*/
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int nfs_mount __P((
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struct mount *mp,
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char *path,
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caddr_t data,
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struct nameidata *ndp,
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struct proc *p));
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int nfs_start __P((
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struct mount *mp,
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int flags,
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struct proc *p));
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int nfs_unmount __P((
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struct mount *mp,
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int mntflags,
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struct proc *p));
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int nfs_root __P((
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struct mount *mp,
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struct vnode **vpp));
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int nfs_quotactl __P((
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struct mount *mp,
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int cmds,
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int uid, /* should be uid_t */
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caddr_t arg,
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struct proc *p));
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int nfs_statfs __P((
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struct mount *mp,
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struct statfs *sbp,
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struct proc *p));
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int nfs_sync __P((
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struct mount *mp,
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int waitfor));
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int nfs_fhtovp __P((
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struct mount *mp,
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struct fid *fhp,
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struct vnode **vpp));
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int nfs_vptofh __P((
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struct vnode *vp,
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struct fid *fhp));
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int nfs_init __P(());
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#endif /* !_NFS_NFSMOUNT_H_ */
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