NetBSD/sys/boot/nfsboot.c

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/*
* Copyright (c) 1993 Adam Glass
* All rights reserved.
*
* A lot of this code is derived material from the LBL bootbootp release,
* thus their copyright below.
*
* 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 Adam Glass.
* 4. The name of the Author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Adam Glass ``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.
*
* $Header: /cvsroot/src/sys/boot/Attic/nfsboot.c,v 1.1 1993/10/12 06:02:38 glass Exp $
*/
/*
* Copyright (c) 1992 Regents of the University of California.
* All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratory 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.
*
* @(#) $Header: /cvsroot/src/sys/boot/Attic/nfsboot.c,v 1.1 1993/10/12 06:02:38 glass Exp $ (LBL)
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/cdefs.h>
#include <sys/mount.h>
#include <time.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <nfs/rpcv2.h>
#include <nfs/nfsv2.h>
#include "netboot.h"
#include "config.h"
#include "bootbootp.h"
#include "bootp.h"
#include "netif.h"
/* Globals */
u_char bcea[6] = BA; /* broadcast ethernet address */
char rootpath[FNAME_SIZE]; /* root mount path */
char swappath[FNAME_SIZE]; /* swap mount path */
char ifname[IFNAME_SIZE]; /* name of interface (e.g. "le0") */
n_long rootip; /* root ip address */
n_long swapip; /* swap ip address */
n_long gateip; /* swap ip address */
n_long smask; /* subnet mask */
n_long nmask; /* net mask */
n_long mask; /* subnet or net mask */
time_t bot; /* beginning of time in seconds */
#ifdef DEBUG
int debug = 1;
#else
int debug = 0;
#endif
static u_char rootfh[NFS_FHSIZE];
static u_char swapfh[NFS_FHSIZE];
static u_long swapblks;
static time_t roottime;
void nfs_setup(desc)
struct iodesc *desc;
{
u_long ftype, bytes;
bcopy(&desc->myea[4], &desc->myport, 2);
printf("myip: %s", intoa(desc->myip));
if (gateip)
printf(", gateip: %s", intoa(gateip));
if (mask)
printf(", mask: %s", intoa(mask));
printf("\n");
printf("root: %s:%s\n", intoa(rootip), rootpath);
printf("swap: %s:%s\n", intoa(swapip), swappath);
/* Get root file handle and timestamp */
desc->destip = rootip;
getnfsfh(desc, rootpath, rootfh);
desc->fh = rootfh;
getnfsinfo(desc, &roottime, NULL, &ftype);
if (ftype != NFDIR)
panic("bad root ftype %d", ftype);
if (debug)
printf("nfs_setup: got root fh\n");
desc->destip = swapip;
getnfsfh(desc, swappath, swapfh);
desc->fh = swapfh;
getnfsinfo(desc, NULL, &bytes, &ftype);
if (bytes % 512)
printf("warning: swap is odd sized\n");
if (ftype != NFREG)
panic("bad swap ftype %d\n", ftype);
swapblks = bytes / 512;
if (debug)
printf("nfs_setup: got swap fh\n");
printf("swap: %d (%d blocks)\n", bytes, swapblks);
desc->destip = rootip;
desc->fh = rootfh;
}
unsigned int nfs_boot(kernel_override, machdep_hint)
char *kernel_override;
void *machdep_hint;
{
/*
* 0. get common ether addr if exists
* 1. choose interface
* 2. set up interface
* 3. bootp or bootparam
* 4. get filesystem fh information
* 5. get swap information
* 6. load kernel
* 7. if nfs_diskless crud, do the right thign
* 8. run kernel
*/
struct iodesc *desc;
struct iodesc desc_store;
struct netif *nif;
desc = &desc_store;
netif_init();
while (1) {
bzero(desc, sizeof(*desc));
#ifdef COMMON_ETHERADDR
machdep_common_ether(desc->myea);
#endif
nif = netif_select(machdep_hint);
if (!nif)
panic("netboot: no interfaces left untried");
if (netif_probe(nif, machdep_hint)) {
printf("netboot: couldn't probe %s%d\n",
nif->netif_bname, nif->netif_unit);
continue;
}
netif_attach(nif, desc, machdep_hint);
get_bootinfo(desc);
nfs_setup(desc);
nfs_exec(desc, kernel_override);
failed: netif_detach(nif);
}
}