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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [nfs/] [nfsdiskless.h] - Rev 359
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/* * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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 8.1 (Berkeley) 6/10/93 * $Id: nfsdiskless.h,v 1.2 2001-09-27 12:01:56 chris Exp $ */ #ifndef _NFS_NFSDISKLESS_H_ #define _NFS_NFSDISKLESS_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. * The primary bootstrap is expected to fill in the appropriate fields before * starting the kernel. 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. */ /* * I have defined a new structure that can handle an NFS Version 3 file handle * but the kernel still expects the old Version 2 one to be provided. The * changes required in nfs_vfsops.c for using the new are documented there in * comments. (I felt that breaking network booting code by changing this * structure would not be prudent at this time, since almost all servers are * still Version 2 anyhow.) */ struct nfsv3_diskless { struct ifaliasreq myif; /* Default interface */ struct sockaddr_in mygateway; /* Default gateway */ struct nfs_args swap_args; /* Mount args for swap file */ int swap_fhsize; /* Size of file handle */ u_char swap_fh[NFSX_V3FHMAX]; /* Swap file's file handle */ struct sockaddr_in swap_saddr; /* Address of swap server */ char swap_hostnam[MNAMELEN]; /* Host name for mount pt */ int swap_nblks; /* Size of server swap file */ struct ucred swap_ucred; /* Swap credentials */ struct nfs_args root_args; /* Mount args for root fs */ int root_fhsize; /* Size of root file handle */ u_char root_fh[NFSX_V3FHMAX]; /* File handle of root dir */ struct sockaddr_in root_saddr; /* Address of root server */ char root_hostnam[MNAMELEN]; /* Host name for mount pt */ long root_time; /* Timestamp of root fs */ char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */ }; struct nfs_diskless { struct ifaliasreq myif; /* Default interface */ struct sockaddr_in mygateway; /* Default gateway */ struct nfs_args swap_args; /* Mount args for swap file */ u_char swap_fh[NFSX_V2FH]; /* Swap file's file handle */ struct sockaddr_in swap_saddr; /* Address of swap server */ char swap_hostnam[MNAMELEN]; /* Host name for mount pt */ int swap_nblks; /* Size of server swap file */ struct ucred swap_ucred; /* Swap credentials */ struct nfs_args root_args; /* Mount args for root fs */ u_char root_fh[NFSX_V2FH]; /* File handle of root dir */ struct sockaddr_in root_saddr; /* Address of root server */ char root_hostnam[MNAMELEN]; /* Host name for mount pt */ long root_time; /* Timestamp of root fs */ char my_hostnam[MAXHOSTNAMELEN]; /* Client host name */ }; #endif
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