NetBSD/usr.sbin/installboot/installboot.c

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/* $NetBSD: installboot.c,v 1.6 2002/04/19 07:08:52 lukem Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Luke Mewburn of Wasabi Systems.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(__lint)
__RCSID("$NetBSD: installboot.c,v 1.6 2002/04/19 07:08:52 lukem Exp $");
#endif /* !__lint */
#include <sys/utsname.h>
#include <assert.h>
#include <err.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "installboot.h"
int main(int, char *[]);
static int getmachine(ib_params *, const char *, const char *);
static int getfstype(ib_params *, const char *, const char *);
static void usage(void);
static ib_params installboot_params;
int
main(int argc, char *argv[])
{
struct utsname utsname;
ib_params *params;
unsigned long lval;
int ch, rv, mode;
char *p;
const char *op;
setprogname(argv[0]);
params = &installboot_params;
memset(params, 0, sizeof(*params));
if ((p = getenv("MACHINE")) != NULL)
if (! getmachine(params, p, "$MACHINE"))
exit(1);
while ((ch = getopt(argc, argv, "b:cm:no:t:v")) != -1) {
switch (ch) {
case 'b':
if (*optarg == '\0')
goto badblock;
lval = strtoul(optarg, &p, 0);
if (lval > UINT32_MAX || *p != '\0') {
badblock:
errx(1, "Invalid block number `%s'", optarg);
}
params->startblock = (uint32_t)lval;
params->flags |= IB_STARTBLOCK;
break;
case 'c':
params->flags |= IB_CLEAR;
break;
case 'm':
if (! getmachine(params, optarg, "-m"))
exit(1);
break;
case 'n':
params->flags |= IB_NOWRITE;
break;
case 'o':
if (params->machine == NULL)
errx(1,
"Machine needs to be specified before -o");
while ((p = strsep(&optarg, ",")) != NULL) {
if (*p == '\0')
errx(1, "Empty `-o' option");
if (! params->machine->parseopt(params, p))
exit(1);
}
break;
case 't':
if (! getfstype(params, optarg, "-t"))
exit(1);
break;
case 'v':
params->flags |= IB_VERBOSE;
break;
case '?':
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (((params->flags & IB_CLEAR) != 0 && argc != 1) ||
((params->flags & IB_CLEAR) == 0 && (argc < 2 || argc > 3)))
usage();
/* set missing defaults */
if (params->machine == NULL) {
if (uname(&utsname) == -1)
err(1, "Determine uname");
if (! getmachine(params, utsname.machine, "uname()"))
exit(1);
}
params->filesystem = argv[0];
if (params->flags & IB_NOWRITE) {
op = "only";
mode = O_RDONLY;
} else {
op = "write";
mode = O_RDWR;
}
if ((params->fsfd = open(params->filesystem, mode, 0600)) == -1)
err(1, "Opening file system `%s' read-%s",
params->filesystem, op);
if (params->fstype != NULL) {
if (! params->fstype->match(params))
err(1, "File system `%s' is not of type %s",
params->filesystem, params->fstype->name);
} else {
params->fstype = &fstypes[0];
while (params->fstype->name != NULL &&
! params->fstype->match(params))
params->fstype++;
if (params->fstype->name == NULL)
err(1, "File system `%s' is of an unknown type",
params->filesystem);
}
if (argc >= 2) {
params->stage1 = argv[1];
if ((params->s1fd = open(params->stage1, O_RDONLY, 0600))
== -1)
err(1, "Opening primary bootstrap `%s'",
params->stage1);
}
if (argc == 3) {
params->stage2 = argv[2];
}
assert(params->machine != NULL);
if (params->flags & IB_VERBOSE) {
printf("File system: %s\n", params->filesystem);
printf("Primary bootstrap: %s\n",
(params->flags & IB_CLEAR) ? "(to be cleared)"
: params->stage1);
if (params->stage2 != NULL)
printf("Secondary bootstrap: %s\n", params->stage2);
}
if (params->flags & IB_CLEAR) {
op = "Clear";
rv = params->machine->clearboot(params);
} else {
op = "Set";
rv = params->machine->setboot(params);
}
if (rv == 0)
errx(1, "%s bootstrap operation failed", op);
2002-04-12 07:15:20 +04:00
if (fsync(params->fsfd) == -1)
err(1, "Synchronising file system `%s'", params->filesystem);
if (close(params->fsfd) == -1)
err(1, "Closing file system `%s'", params->filesystem);
if (argc == 2)
if (close(params->s1fd) == -1)
err(1, "Closing primary bootstrap `%s'",
params->stage1);
exit(0);
/* NOTREACHED */
}
int
parseoptionflag(ib_params *params, const char *option, ib_flags wantflags)
{
struct {
const char *name;
ib_flags flag;
} flags[] = {
{ "alphasum", IB_ALPHASUM },
{ "append", IB_APPEND },
{ "sunsum", IB_SUNSUM },
{ NULL, 0 },
};
int i;
assert(params != NULL);
assert(option != NULL);
for (i = 0; flags[i].name != NULL; i++) {
if ((strcmp(flags[i].name, option) == 0) &&
(wantflags & flags[i].flag)) {
params->flags |= flags[i].flag;
return (1);
}
}
return (0);
}
int
no_parseopt(ib_params *params, const char *option)
{
/* all options are unsupported */
warnx("Unsupported -o option `%s'", option);
return (0);
}
int
no_setboot(ib_params *params)
{
/* bootstrap installation is not supported */
warnx("%s: bootstrap installation is not supported",
params->machine->name);
return (0);
}
int
no_clearboot(ib_params *params)
{
/* bootstrap removal is not supported */
warnx("%s: bootstrap removal is not supported",
params->machine->name);
return (0);
}
static int
getmachine(ib_params *param, const char *mach, const char *provider)
{
int i;
assert(param != NULL);
assert(mach != NULL);
for (i = 0; machines[i].name != NULL; i++) {
if (strcmp(machines[i].name, mach) == 0) {
param->machine = &machines[i];
return (1);
}
}
warnx("Invalid machine `%s' from %s", mach, provider);
warnx("Supported machines are:");
#define MACHS_PER_LINE 10
for (i = 0; machines[i].name != NULL; i++) {
fputs((i % MACHS_PER_LINE) ? ", " : "\t", stderr);
fputs(machines[i].name, stderr);
if ((i % MACHS_PER_LINE) == (MACHS_PER_LINE - 1))
fputs("\n", stderr);
}
if ((i % MACHS_PER_LINE) != 0)
fputs("\n", stderr);
return (0);
}
static int
getfstype(ib_params *param, const char *fstype, const char *provider)
{
int i;
assert(param != NULL);
assert(fstype != NULL);
for (i = 0; fstypes[i].name != NULL; i++) {
if (strcmp(fstypes[i].name, fstype) == 0) {
param->fstype = &fstypes[i];
return (1);
}
}
warnx("Invalid file system type `%s' from %s", fstype, provider);
warnx("Supported file system types are:");
#define FSTYPES_PER_LINE 10
for (i = 0; fstypes[i].name != NULL; i++) {
fputs((i % FSTYPES_PER_LINE) ? ", " : "\t", stderr);
fputs(fstypes[i].name, stderr);
if ((i % FSTYPES_PER_LINE) == (FSTYPES_PER_LINE - 1))
fputs("\n", stderr);
}
if ((i % FSTYPES_PER_LINE) != 0)
fputs("\n", stderr);
return (0);
}
static void
usage(void)
{
const char *prog;
prog = getprogname();
fprintf(stderr,
"Usage: %s [-nv] [-m machine] [-o options] [-t fstype]\n"
"\t\t [-b block] filesystem primary [secondary]\n"
"Usage: %s -c [-nv] [-m machine] [-o options] [-t fstype] filesystem\n",
prog, prog);
exit(1);
}