1 /* 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)nfsdiskless.h 8.1 (Berkeley) 6/10/93 37 * $Id$ 38 */ 39 40 /* 41 * Structure that must be initialized for a diskless nfs client. 42 * This structure is used by nfs_mountroot() to set up the root and swap 43 * vnodes plus do a partial ifconfig(8) and route(8) so that the critical net 44 * interface can communicate with the server. 45 * The primary bootstrap is expected to fill in the appropriate fields before 46 * starting vmunix. Whether or not the swap area is nfs mounted is determined 47 * by the value in swdevt[0]. (equal to NODEV --> swap over nfs) 48 * Currently only works for AF_INET protocols. 49 * NB: All fields are stored in net byte order to avoid hassles with 50 * client/server byte ordering differences. 51 */ 52 struct nfs_diskless { 53 struct ifaliasreq myif; /* Default interface */ 54 struct sockaddr_in mygateway; /* Default gateway */ 55 struct nfs_args swap_args; /* Mount args for swap file */ 56 u_char swap_fh[NFS_FHSIZE]; /* Swap file's file handle */ 57 struct sockaddr_in swap_saddr; /* Address of swap server */ 58 char swap_hostnam[MNAMELEN]; /* Host name for mount pt */ 59 int swap_nblks; /* Size of server swap file */ 60 struct ucred swap_ucred; /* Swap credentials */ 61 struct nfs_args root_args; /* Mount args for root fs */ 62 u_char root_fh[NFS_FHSIZE]; /* File handle of root dir */ 63 struct sockaddr_in root_saddr; /* Address of root server */ 64 char root_hostnam[MNAMELEN]; /* Host name for mount pt */ 65 long root_time; /* Timestamp of root fs */ 66 char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */ 67 }; 68