C version of installboot(8).
Shell script version required sed, od, etc. which were too big for install media.
This commit is contained in:
minoura
parent
12c8367914
commit
6018e68205
17
sys/arch/x68k/stand/installboot/Makefile
Normal file
17
sys/arch/x68k/stand/installboot/Makefile
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@ -0,0 +1,17 @@
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# $NetBSD: Makefile,v 1.1 2001/11/24 16:26:56 minoura Exp $
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PROG= installboot
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SRCS= installboot.c
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BINDIR= /usr/mdec
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WARNS= 2
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LDSTATIC?= -static
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#MANSUBDIR= /x68k
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MKMAN= no # XXX
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DISKLABELDIR= ${.CURDIR}/../../../../../sbin/disklabel
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CPPFLAGS+= -I${DISKLABELDIR}
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.PATH: ${DISKLABELDIR}
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SRCS+= dkcksum.c
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.include <bsd.prog.mk>
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280
sys/arch/x68k/stand/installboot/installboot.c
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280
sys/arch/x68k/stand/installboot/installboot.c
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/* $NetBSD: installboot.c,v 1.1 2001/11/24 16:26:56 minoura Exp $ */
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/*
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* Copyright (c) 2001 Minoura Makoto
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <err.h>
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#include <sys/param.h>
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#include <sys/disklabel.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ffs/fs.h>
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#include "dkcksum.h"
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#define MAXBBSIZE BBSIZE
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#define LABELBYTEOFFSET (LABELSECTOR*512+LABELOFFSET)
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int nflag = 0, vflag = 0, fflag = 0, merging = 0;
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int floppy = 0;
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char rawname[PATH_MAX];
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off_t bboffset = 0;
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size_t bootprogsize;
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size_t blocksize;
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const char *progname;
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const char *bootprog;
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char *target;
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char template[] = _PATH_TMP "/installbootXXXXXX";
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u_int8_t bootblock[MAXBBSIZE];
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struct disklabel label;
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void usage(void) __attribute((__noreturn__));
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int checkbootprog(const char *);
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int checktargetdev(const char *);
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int checkparttype(const char *, int);
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void
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usage(void)
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{
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fprintf(stderr, "usage: %s [-nvf] /usr/mdec/xxboot_ufs /dev/rxx?a\n",
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progname);
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exit(1);
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/* NOTREACHED */
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}
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int
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checkbootprog(const char *name)
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{
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#if 0
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struct stat st;
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if (access(name, R_OK) < 0)
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err(1, "%s", name);
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if (stat(name, &st) < 0)
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err(1, "%s", name);
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bootprogsize = st.st_size;
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return 0;
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#else
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int fd;
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if (access(name, R_OK) < 0)
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err(1, "%s", name);
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fd = open(name, O_RDONLY);
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if (fd < 0)
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err(1, "%s", name);
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bootprogsize = lseek(fd, 0, SEEK_END);
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close(fd);
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return 0;
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#endif
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}
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int
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checktargetdev(const char *name)
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{
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struct stat st;
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if (access(name, W_OK) < 0)
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err(1, "%s", name);
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if (stat(name, &st) < 0)
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err(1, "%s", name);
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if ((st.st_mode & S_IFCHR) == 0)
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errx(1, "%s: not a character special device", name);
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if (DISKPART(st.st_rdev) > MAXPARTITIONS)
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errx(1, "%s: invalid device", name);
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strcpy(rawname, name);
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if (strncmp(name + strlen(name) - 4, "fd", 2) == 1) {
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printf("floppy\n"); /* XXX */
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floppy = 1;
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} else {
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printf("not floppy\n");
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rawname[strlen(name) - 1] = RAW_PART+'a';
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}
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if (!floppy && DISKPART(st.st_rdev) == RAW_PART)
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errx(1, "%s is the raw device", name);
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return 0;
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}
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int
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checkparttype(const char *name, int force)
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{
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struct stat st;
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int fd, part;
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fd = open(rawname, O_RDONLY | O_EXLOCK);
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if (fd < 0)
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err(1, "opening %s", name);
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if (stat(name, &st) < 0)
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err(1, "%s", name);
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if ((st.st_mode & S_IFCHR) == 0)
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errx(1, "%s: not a character special device", name);
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part = DISKPART(st.st_rdev);
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if (ioctl(fd, DIOCGDINFO, &label) < 0)
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err(1, "%s: reading disklabel", name);
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if (part >= label.d_npartitions)
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errx(1, "%s: invalid partition", name);
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blocksize = label.d_secsize;
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if (blocksize < 512)
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blocksize = 512;
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if (blocksize > MAXBBSIZE)
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errx(1, "%s: blocksize too large", name);
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if (read(fd, bootblock, blocksize) != blocksize)
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errx(1, "%s: reading the mark", name);
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close(fd);
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if (strncmp(bootblock, "X68SCSI1", 8) != 0)
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floppy = 1; /* XXX: or unformated */
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if (!force && !floppy) {
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if (label.d_partitions[part].p_fstype != FS_BSDFFS
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&& label.d_partitions[part].p_fstype != FS_BSDLFS)
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errx(1, "%s: invalid partition type", name);
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if ((label.d_partitions[part].p_offset * blocksize < 32768) &&
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label.d_partitions[part].p_offset != 0)
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errx(1, "%s: cannot make the partition bootable",
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name);
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}
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if (floppy)
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merging = 1;
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else if (label.d_partitions[part].p_offset == 0) {
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merging = 1;
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bboffset = 1024; /* adjusted below */
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}
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if (merging) {
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struct disklabel *lp;
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lp = (struct disklabel *) &bootblock[LABELBYTEOFFSET];
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memcpy(&label, lp, sizeof(struct disklabel));
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if (dkcksum(lp) != 0)
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/* there is no valid label */
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memset(&label, 0, sizeof(struct disklabel));
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}
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return 0;
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}
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int
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main(int argc, char *argv[])
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{
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int c;
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int fd;
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progname = argv[0];
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while ((c = getopt(argc, argv, "nvf")) != -1) {
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switch (c) {
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case 'n':
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nflag = 1;
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break;
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case 'v':
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vflag = 1;
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break;
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case 'f':
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fflag = 1;
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break;
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default:
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usage();
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/* NOTREACHED */
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 2)
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usage();
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bootprog = argv[0];
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target = argv[1];
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if (checkbootprog(bootprog) < 0)
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errx(1, "aborting");
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if (checktargetdev(target) < 0)
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errx(1, "aborting");
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if (checkparttype(target, fflag))
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errx(1, "aborting");
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if (merging && blocksize > bboffset)
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bboffset = blocksize;
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if (bootprogsize > MAXBBSIZE - bboffset)
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errx(1, "%s: boot block too big", bootprog);
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/* Read the boot program */
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fd = open(bootprog, O_RDONLY);
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if (fd < 0)
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err(1, "opening %s", bootprog);
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if (read(fd, bootblock + bboffset, bootprogsize) != bootprogsize)
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err(1, "reading %s", bootprog);
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close(fd);
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if (merging)
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memcpy(bootblock + LABELBYTEOFFSET, &label, sizeof(label));
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/* Write the boot block (+ disklabel if necessary) */
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if (nflag) {
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target = template;
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fd = mkstemp(target);
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if (fd < 0)
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err(1, "opening the output file");
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} else {
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int writable = 1;
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fd = open(target, O_WRONLY);
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if (fd < 0)
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err(1, "opening the disk");
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if (merging && ioctl(fd, DIOCWLABEL, &writable) < 0)
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err(1, "opening the disk");
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}
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bootprogsize = howmany(bootprogsize+bboffset, blocksize) * blocksize;
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if (write(fd, bootblock, bootprogsize) != bootprogsize) {
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warn("writing the label");
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if (!nflag && merging) {
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int writable = 0;
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ioctl(fd, DIOCWLABEL, &writable);
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}
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exit(1);
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}
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if (!nflag && merging) {
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int writable = 0;
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ioctl(fd, DIOCWLABEL, &writable);
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}
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close(fd);
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if (nflag)
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fprintf(stderr, "The bootblock is kept in %s\n", target);
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else
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fprintf(stderr, "Do not forget to copy /usr/mdec/boot"
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" to the root directory of %s.\n", target);
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return 0;
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}
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