FreeBSD/Linux Kernel Cross Reference
sys/nfs/nfsmount.h

     /*      $OpenBSD: nfsmount.h,v 1.28 2018/04/09 09:39:53 mpi Exp $       */
     /*      $NetBSD: nfsmount.h,v 1.10 1996/02/18 11:54:03 fvdl Exp $       */
     
     /*
      * Copyright (c) 1989, 1993
      *      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. 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  8.3 (Berkeley) 3/30/95
     */
    
    
    #ifndef _NFS_NFSMOUNT_H_
    #define _NFS_NFSMOUNT_H_
    
    /*
     * Mount structure.
     * One allocated on every NFS mount.
     * Holds NFS specific information for mount.
     */
    struct  nfsmount {
            RBT_HEAD(nfs_nodetree, nfsnode)
                    nm_ntree;               /* filehandle/node tree */
            TAILQ_HEAD(reqs, nfsreq)
                    nm_reqsq;               /* request queue for this mount. */
            struct  timeout nm_rtimeout;    /* timeout (scans/resends nm_reqsq). */
            struct  mount *nm_mountp;       /* Vfs structure for this filesystem */
            struct  vnode *nm_vnode;        /* vnode of root dir */
            int     nm_flag;                /* Flags for soft/hard... */
            int     nm_numgrps;             /* Max. size of groupslist */
            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 */
            int     nm_timeo;               /* Init timer for NFSMNT_DUMBTIMR */
            int     nm_retry;               /* Max retries */
            int     nm_srtt[NFS_MAX_TIMER]; /* RTT Timers for RPCs */
            int     nm_sdrtt[NFS_MAX_TIMER];
            int     nm_sent;                /* Request send count */
            int     nm_cwnd;                /* Request send window */
            int     nm_timeouts;            /* Request timeouts */
            int     nm_rsize;               /* Max size of read rpc */
            int     nm_wsize;               /* Max size of write rpc */
            int     nm_readdirsize;         /* Size of a readdir rpc */
            int     nm_readahead;           /* Num. of blocks to readahead */
            u_char  nm_verf[NFSX_V3WRITEVERF]; /* V3 write verifier */
            u_short nm_acregmin;            /* Attr cache file recently modified */
            u_short nm_acregmax;            /* ac file not recently modified */
            u_short nm_acdirmin;            /* ac for dir recently modified */
            u_short nm_acdirmax;            /* ac for dir not recently modified */
    };
    
    #ifdef _KERNEL
    
    /* Convert mount ptr to nfsmount ptr: */
    #define VFSTONFS(mp)    ((struct nfsmount *)((mp)->mnt_data))
    
    /* Prototypes for NFS mount operations: */
    int     nfs_mount(struct mount *, const char *, void *, struct nameidata *,
                struct proc *);
    int     nfs_fsinfo(struct nfsmount *, struct vnode *, struct ucred *,
                struct proc *);
    void    nfs_init(void);
    
    #endif /* _KERNEL */
    
    #endif

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