317 lines
9.4 KiB
C
317 lines
9.4 KiB
C
/* $NetBSD: vax.c,v 1.13 2009/04/05 11:55:39 lukem Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Simon Burge.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1999 Christopher G. Demetriou. 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Christopher G. Demetriou
|
|
* for the NetBSD Project.
|
|
* 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 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.
|
|
*/
|
|
|
|
#if HAVE_NBTOOL_CONFIG_H
|
|
#include "nbtool_config.h"
|
|
#endif
|
|
|
|
#include <sys/cdefs.h>
|
|
#if !defined(__lint)
|
|
__RCSID("$NetBSD: vax.c,v 1.13 2009/04/05 11:55:39 lukem Exp $");
|
|
#endif /* !__lint */
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <assert.h>
|
|
#include <err.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include "installboot.h"
|
|
|
|
static int load_bootstrap(ib_params *, char **,
|
|
uint32_t *, uint32_t *, size_t *);
|
|
|
|
static int vax_clearboot(ib_params *);
|
|
static int vax_setboot(ib_params *);
|
|
|
|
struct ib_mach ib_mach_vax =
|
|
{ "vax", vax_setboot, vax_clearboot, no_editboot,
|
|
IB_STAGE1START | IB_APPEND | IB_SUNSUM };
|
|
|
|
static int
|
|
vax_clearboot(ib_params *params)
|
|
{
|
|
struct vax_boot_block bb;
|
|
ssize_t rv;
|
|
|
|
assert(params != NULL);
|
|
assert(params->fsfd != -1);
|
|
assert(params->filesystem != NULL);
|
|
assert(sizeof(struct vax_boot_block) == VAX_BOOT_BLOCK_BLOCKSIZE);
|
|
|
|
rv = pread(params->fsfd, &bb, sizeof(bb), VAX_BOOT_BLOCK_OFFSET);
|
|
if (rv == -1) {
|
|
warn("Reading `%s'", params->filesystem);
|
|
return (0);
|
|
} else if (rv != sizeof(bb)) {
|
|
warnx("Reading `%s': short read", params->filesystem);
|
|
return (0);
|
|
}
|
|
|
|
if (bb.bb_id_offset * 2 != offsetof(struct vax_boot_block, bb_magic1)
|
|
|| bb.bb_magic1 != VAX_BOOT_MAGIC1) {
|
|
warnx(
|
|
"Old boot block magic number invalid; boot block invalid");
|
|
return (0);
|
|
}
|
|
|
|
bb.bb_id_offset = 1;
|
|
bb.bb_mbone = 0;
|
|
bb.bb_lbn_hi = 0;
|
|
bb.bb_lbn_low = 0;
|
|
|
|
if (params->flags & IB_SUNSUM) {
|
|
uint16_t sum;
|
|
|
|
sum = compute_sunsum((uint16_t *)&bb);
|
|
if (! set_sunsum(params, (uint16_t *)&bb, sum))
|
|
return (0);
|
|
}
|
|
|
|
if (params->flags & IB_VERBOSE)
|
|
printf("%slearing boot block\n",
|
|
(params->flags & IB_NOWRITE) ? "Not c" : "C");
|
|
if (params->flags & IB_NOWRITE)
|
|
return (1);
|
|
|
|
rv = pwrite(params->fsfd, &bb, sizeof(bb), VAX_BOOT_BLOCK_OFFSET);
|
|
if (rv == -1) {
|
|
warn("Writing `%s'", params->filesystem);
|
|
return (0);
|
|
} else if (rv != sizeof(bb)) {
|
|
warnx("Writing `%s': short write", params->filesystem);
|
|
return (0);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
vax_setboot(ib_params *params)
|
|
{
|
|
struct stat bootstrapsb;
|
|
struct vax_boot_block bb;
|
|
uint32_t startblock;
|
|
int retval;
|
|
char *bootstrapbuf;
|
|
size_t bootstrapsize;
|
|
uint32_t bootstrapload, bootstrapexec;
|
|
ssize_t rv;
|
|
|
|
assert(params != NULL);
|
|
assert(params->fsfd != -1);
|
|
assert(params->filesystem != NULL);
|
|
assert(params->s1fd != -1);
|
|
assert(params->stage1 != NULL);
|
|
assert(sizeof(struct vax_boot_block) == VAX_BOOT_BLOCK_BLOCKSIZE);
|
|
|
|
retval = 0;
|
|
bootstrapbuf = NULL;
|
|
|
|
if (fstat(params->s1fd, &bootstrapsb) == -1) {
|
|
warn("Examining `%s'", params->stage1);
|
|
goto done;
|
|
}
|
|
if (!S_ISREG(bootstrapsb.st_mode)) {
|
|
warnx("`%s' must be a regular file", params->stage1);
|
|
goto done;
|
|
}
|
|
if (! load_bootstrap(params, &bootstrapbuf, &bootstrapload,
|
|
&bootstrapexec, &bootstrapsize))
|
|
goto done;
|
|
|
|
rv = pread(params->fsfd, &bb, sizeof(bb), VAX_BOOT_BLOCK_OFFSET);
|
|
if (rv == -1) {
|
|
warn("Reading `%s'", params->filesystem);
|
|
goto done;
|
|
} else if (rv != sizeof(bb)) {
|
|
warnx("Reading `%s': short read", params->filesystem);
|
|
goto done;
|
|
}
|
|
|
|
/* fill in the updated boot block fields */
|
|
if (params->flags & IB_APPEND) {
|
|
struct stat filesyssb;
|
|
|
|
if (fstat(params->fsfd, &filesyssb) == -1) {
|
|
warn("Examining `%s'", params->filesystem);
|
|
goto done;
|
|
}
|
|
if (!S_ISREG(filesyssb.st_mode)) {
|
|
warnx(
|
|
"`%s' must be a regular file to append a bootstrap",
|
|
params->filesystem);
|
|
goto done;
|
|
}
|
|
startblock = howmany(filesyssb.st_size,
|
|
VAX_BOOT_BLOCK_BLOCKSIZE);
|
|
} else if (params->flags & IB_STAGE1START) {
|
|
startblock = params->s1start;
|
|
} else {
|
|
startblock = VAX_BOOT_BLOCK_OFFSET / VAX_BOOT_BLOCK_BLOCKSIZE
|
|
+ 1;
|
|
}
|
|
|
|
bb.bb_id_offset = offsetof(struct vax_boot_block, bb_magic1) / 2;
|
|
bb.bb_mbone = 1;
|
|
bb.bb_lbn_hi = htole16((uint16_t) (startblock >> 16));
|
|
bb.bb_lbn_low = htole16((uint16_t) (startblock >> 0));
|
|
/*
|
|
* Now the identification block
|
|
*/
|
|
bb.bb_magic1 = VAX_BOOT_MAGIC1;
|
|
bb.bb_mbz1 = 0;
|
|
bb.bb_sum1 = ~(bb.bb_magic1 + bb.bb_mbz1 + bb.bb_pad1);
|
|
|
|
bb.bb_mbz2 = 0;
|
|
bb.bb_volinfo = VAX_BOOT_VOLINFO_NONE;
|
|
bb.bb_pad2a = 0;
|
|
bb.bb_pad2b = 0;
|
|
|
|
bb.bb_size = htole32(bootstrapsize / VAX_BOOT_BLOCK_BLOCKSIZE);
|
|
bb.bb_load = htole32(VAX_BOOT_LOAD);
|
|
bb.bb_entry = htole32(VAX_BOOT_ENTRY);
|
|
bb.bb_sum3 = htole32(le32toh(bb.bb_size) + le32toh(bb.bb_load) \
|
|
+ le32toh(bb.bb_entry));
|
|
|
|
if (params->flags & IB_SUNSUM) {
|
|
uint16_t sum;
|
|
|
|
sum = compute_sunsum((uint16_t *)&bb);
|
|
if (! set_sunsum(params, (uint16_t *)&bb, sum))
|
|
goto done;
|
|
}
|
|
|
|
if (params->flags & IB_VERBOSE) {
|
|
printf("Bootstrap start sector: %u\n", startblock);
|
|
printf("Bootstrap sector count: %u\n", le32toh(bb.bb_size));
|
|
printf("%sriting bootstrap\n",
|
|
(params->flags & IB_NOWRITE) ? "Not w" : "W");
|
|
}
|
|
if (params->flags & IB_NOWRITE) {
|
|
retval = 1;
|
|
goto done;
|
|
}
|
|
rv = pwrite(params->fsfd, bootstrapbuf, bootstrapsize,
|
|
startblock * VAX_BOOT_BLOCK_BLOCKSIZE);
|
|
if (rv == -1) {
|
|
warn("Writing `%s'", params->filesystem);
|
|
goto done;
|
|
} else if ((size_t)rv != bootstrapsize) {
|
|
warnx("Writing `%s': short write", params->filesystem);
|
|
goto done;
|
|
}
|
|
|
|
if (params->flags & IB_VERBOSE)
|
|
printf("Writing boot block\n");
|
|
rv = pwrite(params->fsfd, &bb, sizeof(bb), VAX_BOOT_BLOCK_OFFSET);
|
|
if (rv == -1) {
|
|
warn("Writing `%s'", params->filesystem);
|
|
goto done;
|
|
} else if (rv != sizeof(bb)) {
|
|
warnx("Writing `%s': short write", params->filesystem);
|
|
goto done;
|
|
} else {
|
|
retval = 1;
|
|
}
|
|
|
|
done:
|
|
if (bootstrapbuf)
|
|
free(bootstrapbuf);
|
|
return (retval);
|
|
}
|
|
|
|
static int
|
|
load_bootstrap(ib_params *params, char **data,
|
|
uint32_t *loadaddr, uint32_t *execaddr, size_t *len)
|
|
{
|
|
ssize_t cc;
|
|
size_t buflen;
|
|
|
|
buflen = 512 * (VAX_BOOT_SIZE + 1);
|
|
*data = malloc(buflen);
|
|
if (*data == NULL) {
|
|
warn("Allocating %lu bytes", (unsigned long) buflen);
|
|
return (0);
|
|
}
|
|
|
|
cc = pread(params->s1fd, *data, buflen, 0);
|
|
if (cc <= 0) {
|
|
warn("Reading `%s'", params->stage1);
|
|
return (0);
|
|
}
|
|
if (cc > 512 * VAX_BOOT_SIZE) {
|
|
warnx("`%s': too large", params->stage1);
|
|
return (0);
|
|
}
|
|
|
|
*len = roundup(cc, VAX_BOOT_BLOCK_BLOCKSIZE);
|
|
*loadaddr = VAX_BOOT_LOAD;
|
|
*execaddr = VAX_BOOT_ENTRY;
|
|
return (1);
|
|
}
|