NetBSD/sys/nfs/swapnfs.c

169 lines
5.7 KiB
C

/*
* Copyright (c) 1991 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.
*
* from: @(#)nfsswapvmunix.c 7.1 (Berkeley) 3/4/91
* $Id: swapnfs.c,v 1.4 1994/01/18 01:35:15 brezak Exp $
*/
/*
* Sample NFS swapvmunix configuration file.
* This should be filled in by the bootstrap program.
* See /sys/nfs/nfsdiskless.h for details of the fields.
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/socket.h>
#include <sys/mount.h>
#include <net/if.h>
#include <nfs/nfsv2.h>
#include <nfs/nfsdiskless.h>
dev_t rootdev = NODEV;
dev_t argdev = NODEV;
dev_t dumpdev = NODEV;
struct swdevt swdevt[] = {
{ NODEV, 0, 0 },
{ 0, 0, 0 }
};
extern int nfs_mountroot();
/* We start with transfer sizes of 4K during boot */
/* as the WD8003 has problems to support 8K of back to back packets */
struct nfs_diskless nfs_diskless = {
{ 0 }, /* myif */
{ 0 }, /* mygateway */
{ /* swap_args */
0, /* addr */
0, /* sotype */
0, /* proto */
0, /* fh */
NFSMNT_WSIZE|NFSMNT_RSIZE, /* flags */
4096, /* wsize */
4096, /* rsize */
0, /* timeo */
0, /* retrans */
0 /* hostname */
},
{ 0 }, /* swap_fh */
{ 0 }, /* swap_saddr */
{ 0 }, /* swap_hostnam */
{ /* root_args */
0, /* addr */
0, /* sotype */
0, /* proto */
0, /* fh */
NFSMNT_WSIZE|NFSMNT_RSIZE, /* flags */
4096, /* wsize */
4096, /* rsize */
0, /* timeo */
0, /* retrans */
0 /* hostname */
},
{ 0 }, /* root_fh */
{ 0 }, /* root_saddr */
{ 0 } /* root_hostnam */
};
#ifndef NFSDISKLESS_HARDWIRE
int (*mountroot)() = nfs_mountroot;
#else
int nfs_hack_mountroot();
int (*mountroot)() = nfs_hack_mountroot;
#define NFS_SOCKET 2049
/* this is an egregious hack necessitated by many unfortunate circumstances*/
int nfs_hack_mountroot()
{
struct ifaliasreq diskless_if = {
"le0", /* temporarily */
NFSDISKLESS_IF_ADDR,
NFSDISKLESS_IF_BADDR,
NFSDISKLESS_IF_MASK
};
#ifdef NFSDISKLESS_GATEWAY
struct sockaddr diskless_gateway = NFSDISKLESS_GATEWAY;
#endif
u_char diskless_swap_fh[NFS_FHSIZE] = NFSDISKLESS_SWAP_FH;
struct sockaddr diskless_swap_saddr = NFSDISKLESS_SWAP_SADDR;
u_char diskless_root_fh[NFS_FHSIZE] = NFSDISKLESS_ROOT_FH;
struct sockaddr diskless_root_saddr = NFSDISKLESS_ROOT_SADDR;
char *diskless_swap_hostnam = "solipsist";
char *diskless_root_hostnam = "solipsist";
nfs_diskless.swap_saddr.sa_data[0] = nfs_diskless.root_saddr.sa_data[0]
= NFS_SOCKET >> 8;
nfs_diskless.swap_saddr.sa_data[1] = nfs_diskless.root_saddr.sa_data[1]
= NFS_SOCKET & 0x00FF;
bcopy(&diskless_if, &nfs_diskless.myif, sizeof(diskless_if));
#ifdef NFSDISKLESS_GATEWAY
bcopy(&diskless_gateway, &nfs_diskless.mygateway,
sizeof(diskless_gateway));
#endif
bcopy(&diskless_swap_saddr, &nfs_diskless.swap_saddr,
sizeof(diskless_swap_saddr));
bcopy(&diskless_root_saddr, &nfs_diskless.root_saddr,
sizeof(diskless_root_saddr));
bcopy(diskless_root_fh, nfs_diskless.root_fh, NFS_FHSIZE);
bcopy(diskless_swap_fh, nfs_diskless.swap_fh, NFS_FHSIZE);
strcpy(nfs_diskless.swap_hostnam, diskless_swap_hostnam);
strcpy(nfs_diskless.root_hostnam, diskless_root_hostnam);
nfs_diskless.swap_args.addr = &nfs_diskless.swap_saddr;
nfs_diskless.swap_args.fh = nfs_diskless.swap_fh;
nfs_diskless.swap_args.sotype = SOCK_DGRAM;
nfs_diskless.swap_args.timeo = 10;
nfs_diskless.swap_args.retrans = 100;
nfs_diskless.swap_args.hostname = nfs_diskless.swap_hostnam;
nfs_diskless.root_args.addr = &nfs_diskless.root_saddr;
nfs_diskless.root_args.fh = nfs_diskless.root_fh;
nfs_diskless.root_args.sotype = SOCK_DGRAM;
nfs_diskless.root_args.timeo = 10;
nfs_diskless.root_args.retrans = 100;
nfs_diskless.root_args.hostname = nfs_diskless.root_hostnam;
return nfs_mountroot();
}
#endif