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 8.2 (Berkeley) 3/30/95 37 * $FreeBSD: src/sys/nfs/nfsdiskless.h,v 1.11 1999/08/28 00:50:02 peter Exp $ 38 */ 39 40 41 #ifndef _NFS_NFSDISKLESS_H_ 42 #define _NFS_NFSDISKLESS_H_ 43 44 /* 45 * Structure that must be initialized for a diskless nfs client. 46 * This structure is used by nfs_mountroot() to set up the root vnode, 47 * and to do a partial ifconfig(8) and route(8) so that the critical net 48 * interface can communicate with the server. 49 * The primary bootstrap is expected to fill in the appropriate fields before 50 * starting the kernel. Whether or not the swap area is nfs mounted is 51 * determined by the value in swdevt[0]. (equal to NODEV --> swap over nfs) 52 * Currently only works for AF_INET protocols. 53 * NB: All fields are stored in net byte order to avoid hassles with 54 * client/server byte ordering differences. 55 */ 56 57 /* 58 * I have defined a new structure that can handle an NFS Version 3 file handle 59 * but the kernel still expects the old Version 2 one to be provided. The 60 * changes required in nfs_vfsops.c for using the new are documented there in 61 * comments. (I felt that breaking network booting code by changing this 62 * structure would not be prudent at this time, since almost all servers are 63 * still Version 2 anyhow.) 64 */ 65 struct nfsv3_diskless { 66 struct ifaliasreq myif; /* Default interface */ 67 struct sockaddr_in mygateway; /* Default gateway */ 68 struct nfs_args swap_args; /* Mount args for swap file */ 69 int swap_fhsize; /* Size of file handle */ 70 u_char swap_fh[NFSX_V3FHMAX]; /* Swap file's file handle */ 71 struct sockaddr_in swap_saddr; /* Address of swap server */ 72 char swap_hostnam[MNAMELEN]; /* Host name for mount pt */ 73 int swap_nblks; /* Size of server swap file */ 74 struct ucred swap_ucred; /* Swap credentials */ 75 struct nfs_args root_args; /* Mount args for root fs */ 76 int root_fhsize; /* Size of root file handle */ 77 u_char root_fh[NFSX_V3FHMAX]; /* File handle of root dir */ 78 struct sockaddr_in root_saddr; /* Address of root server */ 79 char root_hostnam[MNAMELEN]; /* Host name for mount pt */ 80 long root_time; /* Timestamp of root fs */ 81 char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */ 82 }; 83 84 /* 85 * Old arguments to mount NFS 86 */ 87 struct onfs_args { 88 struct sockaddr *addr; /* file server address */ 89 int addrlen; /* length of address */ 90 int sotype; /* Socket type */ 91 int proto; /* and Protocol */ 92 u_char *fh; /* File handle to be mounted */ 93 int fhsize; /* Size, in bytes, of fh */ 94 int flags; /* flags */ 95 int wsize; /* write size in bytes */ 96 int rsize; /* read size in bytes */ 97 int readdirsize; /* readdir size in bytes */ 98 int timeo; /* initial timeout in .1 secs */ 99 int retrans; /* times to retry send */ 100 int maxgrouplist; /* Max. size of group list */ 101 int readahead; /* # of blocks to readahead */ 102 int leaseterm; /* Term (sec) of lease */ 103 int deadthresh; /* Retrans threshold */ 104 char *hostname; /* server's name */ 105 }; 106 107 struct nfs_diskless { 108 struct ifaliasreq myif; /* Default interface */ 109 struct sockaddr_in mygateway; /* Default gateway */ 110 struct onfs_args swap_args; /* Mount args for swap file */ 111 u_char swap_fh[NFSX_V2FH]; /* Swap file's file handle */ 112 struct sockaddr_in swap_saddr; /* Address of swap server */ 113 char swap_hostnam[MNAMELEN]; /* Host name for mount pt */ 114 int swap_nblks; /* Size of server swap file */ 115 struct ucred swap_ucred; /* Swap credentials */ 116 struct onfs_args root_args; /* Mount args for root fs */ 117 u_char root_fh[NFSX_V2FH]; /* File handle of root dir */ 118 struct sockaddr_in root_saddr; /* Address of root server */ 119 char root_hostnam[MNAMELEN]; /* Host name for mount pt */ 120 long root_time; /* Timestamp of root fs */ 121 char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */ 122 }; 123 124 #endif 125