NetBSD-5.0.2/distrib/cdrom/macppc_installboot/installboot.c
/* $NetBSD: installboot.c,v 1.3 2008/05/14 13:29:27 tsutsui Exp $ */
/*-
* Copyright (c) 2005 Izumi Tsutsui. All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "installboot.h"
#define BSIZE 512
#define MAX_SB_SIZE (64 * 1024) /* XXX */
#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
static void usage(void);
static ib_params installboot_params;
int
main(int argc, char **argv)
{
ib_params *params;
uint8_t *bb;
struct apple_part_map_entry pme;
size_t bbi;
struct shared_bbinfo *bbinfop;
off_t partoff;
uint32_t nblk, maxblk, blk_i;
int rv;
ib_block *blocks;
setprogname(argv[0]);
params = &installboot_params;
memset(params, 0, sizeof(*params));
params->fsfd = -1;
params->s1fd = -1;
if (argc != 4)
usage();
params->filesystem = argv[1];
if ((params->fsfd = open(params->filesystem, O_RDWR, 0600)) == -1)
err(1, "Opening file system `%s' read", params->filesystem);
if (fstat(params->fsfd, ¶ms->fsstat) == -1)
err(1, "Examining file system `%s'", params->filesystem);
#ifdef DEBUG
printf("file system: %s, %ld bytes\n",
params->filesystem, (long)params->fsstat.st_size);
#endif
/*
* Find space for primary boot from the second (NetBSD_BootBlock)
* partition.
*/
if (pread(params->fsfd, &pme, sizeof pme, BSIZE * 2) != sizeof(pme))
err(1, "read pme from file system `%s'", params->filesystem);
if (strcmp(pme.pmPartName, "NetBSD_BootBlock"))
err(1, "invalid partition map in file system `%s'",
params->filesystem);
/* pmPyPartStart is written by mkisofs */
partoff = BSIZE * be32toh(pme.pmPyPartStart);
#ifdef DEBUG
printf("NetBSD partition offset = %ld\n", (long)partoff);
#endif
params->stage1 = argv[2];
if ((params->s1fd = open(params->stage1, O_RDONLY, 0600)) == -1)
err(1, "Opening primary bootstrap `%s'", params->stage1);
if (fstat(params->s1fd, ¶ms->s1stat) == -1)
err(1, "Examining primary bootstrap `%s'", params->stage1);
if (!S_ISREG(params->s1stat.st_mode))
err(1, "`%s' must be a regular file", params->stage1);
if (params->s1stat.st_size > MACPPC_BOOT_BLOCK_MAX_SIZE)
err(1, "primary bootrap `%s' too large (%ld bytes)",
params->stage1, (long)params->s1stat.st_size);
#ifdef DEBUG
printf("primary boot: %s, %ld bytes\n",
params->stage1, (long)params->s1stat.st_size);
#endif
params->stage2 = argv[3];
bb = malloc(MACPPC_BOOT_BLOCK_MAX_SIZE);
if (bb == NULL)
err(1, "Allocating %ul bytes for bbinfo",
MACPPC_BOOT_BLOCK_MAX_SIZE);
memset(bb, 0, sizeof(bb));
rv = read(params->s1fd, bb, params->s1stat.st_size);
if (rv == -1)
err(1, "Reading `%s'", params->stage1);
if (memcmp(bb + 1, "ELF", strlen("ELF")) == 0) {
warnx("`%s' is an ELF executable; need raw binary",
params->stage1);
}
/* look for the bbinfo structure */
for (bbi = 0; bbi < MACPPC_BOOT_BLOCK_MAX_SIZE;
bbi += sizeof(uint32_t)) {
bbinfop = (void *)(bb + bbi);
if (memcmp(bbinfop->bbi_magic, MACPPC_BBINFO_MAGIC,
sizeof(bbinfop->bbi_magic)) == 0) {
#ifdef DEBUG
printf("magic found: %s\n", bbinfop->bbi_magic);
#endif
break;
}
}
if (bbi >= MACPPC_BOOT_BLOCK_MAX_SIZE)
err(1, "bbinfo structure not found in `%s'", params->stage1);
maxblk = be32toh(bbinfop->bbi_block_count);
if (maxblk == 0 ||
maxblk > (MACPPC_BOOT_BLOCK_MAX_SIZE / sizeof(uint32_t)))
err(1, "bbinfo structure in `%s' has preposterous size `%u'",
params->stage1, maxblk);
blocks = malloc(sizeof(*blocks) * maxblk);
if (blocks == NULL) {
err(1, "Allocating %lu bytes for blocks",
(unsigned long)sizeof(*blocks) * maxblk);
}
if (S_ISREG(params->fsstat.st_mode)) {
if (fsync(params->fsfd) == -1)
err(1, "Synchronising file system `%s'",
params->filesystem);
}
nblk = maxblk;
if (!cd9660_findstage2(params, &nblk, blocks)) {
exit(1);
}
bbinfop->bbi_block_count = htobe32(nblk);
bbinfop->bbi_block_size = htobe32(blocks[0].blocksize);
for (blk_i = 0; blk_i < nblk; blk_i++) {
bbinfop->bbi_block_table[blk_i] = htobe32(blocks[blk_i].block);
if (blocks[blk_i].blocksize < blocks[0].blocksize &&
blk_i + 1 != nblk) {
warnx("Secondary bootstrap `%s' blocks do not have "
"a uniform size", params->stage2);
exit(1);
}
}
/* XXX no write option */
if (pwrite(params->fsfd, bb, MACPPC_BOOT_BLOCK_MAX_SIZE, partoff) !=
MACPPC_BOOT_BLOCK_MAX_SIZE)
err(1, "write bootblock");
if (S_ISREG(params->fsstat.st_mode)) {
if (fsync(params->fsfd) == -1)
err(1, "Synchronising file system `%s'",
params->filesystem);
}
free(bb);
if (close(params->fsfd) == -1)
err(1, "Closing file system `%s'", params->filesystem);
if (close(params->s1fd) == -1)
err(1, "Closing primary bootstrap `%s'", params->stage1);
return 0;
}
static void
usage(void)
{
const char *prog;
prog = getprogname();
fprintf(stderr, "usage: %s hybrid-cd-image primary secondary\n", prog);
exit(1);
}