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

     /*      $OpenBSD: nfsdiskless.h,v 1.10 2013/09/20 23:51:44 fgsch Exp $  */
     /*      $NetBSD: nfsdiskless.h,v 1.9 1996/02/18 11:54:00 fvdl Exp $     */
     
     /*
      * Copyright (c) 1991, 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.
     *
     *      @(#)nfsdiskless.h       8.2 (Berkeley) 3/30/95
     */
    
    #ifndef _NFS_DISKLESS_H_
    #define _NFS_DISKLESS_H_
    
    /*
     * Structure that must be initialized for a diskless nfs client.
     * This structure is used by nfs_mountroot() to set up the root and swap
     * vnodes plus do a partial ifconfig(8) and route(8) so that the critical
     * net interface can communicate with the server.
     * Whether or not the swap area is nfs mounted is determined
     * by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
     * Currently only works for AF_INET protocols.
     * NB: All fields are stored in net byte order to avoid hassles with
     * client/server byte ordering differences.
     */
    struct nfs_dlmount {
            struct nfs_args ndm_args;
            struct sockaddr_in ndm_saddr;           /* Address of file server */
            char            ndm_host[MNAMELEN];     /* Host name for mount pt */
            u_char          ndm_fh[NFSX_V3FHMAX];   /* The file's file handle */
    };
    struct nfs_diskless {
            struct sockaddr_in nd_boot;     /* Address of boot server */
            struct nfs_dlmount nd_root;     /* Mount info for root */
            struct nfs_dlmount nd_swap;     /* Mount info for swap */
            struct vnode       *sw_vp;
    };
    
    int nfs_boot_init(struct nfs_diskless *nd, struct proc *procp);
    int nfs_boot_getfh(struct sockaddr_in *bpsin, char *key,
                    struct nfs_dlmount *ndmntp, int retries);
    #endif  /* _NFS_DISKLESS_H_ */
    

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