File: [local] / sys / arch / alpha / stand / installboot.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:48 2008 UTC (16 years, 4 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: installboot.c,v 1.14 2007/06/06 17:15:11 deraadt Exp $ */
/* $NetBSD: installboot.c,v 1.2 1997/04/06 08:41:12 cgd Exp $ */
/*
* Copyright (c) 1997 Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1994 Paul Kranenburg
* 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 Paul Kranenburg.
* 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.
*/
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ufs/dir.h>
#include <ufs/ffs/fs.h>
#include <sys/disklabel.h>
#include <sys/dkio.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <util.h>
#include "bbinfo.h"
#ifndef ISO_DEFAULT_BLOCK_SIZE
#define ISO_DEFAULT_BLOCK_SIZE 2048
#endif
int verbose, nowrite, hflag;
char *boot, *proto, *dev;
struct bbinfoloc *bbinfolocp;
struct bbinfo *bbinfop;
int max_block_count;
char *loadprotoblocks(char *, long *);
int loadblocknums(char *, int, unsigned long);
static void devread(int, void *, daddr_t, size_t, char *);
static void usage(void);
int main(int, char *[]);
int isofsblk = 0;
int isofseblk = 0;
static void
usage(void)
{
(void)fprintf(stderr,
"usage: installboot [-n] [-v] [-s isofsblk -e isofseblk] "
"<boot> <proto> <device>\n");
exit(1);
}
int
main(int argc, char *argv[])
{
int c, devfd;
char *protostore;
long protosize;
struct stat disksb, bootsb;
struct disklabel dl;
daddr64_t partoffset;
#define BBPAD 0x1e0
struct bb {
char bb_pad[BBPAD]; /* disklabel lives in here, actually */
long bb_secsize; /* size of secondary boot block */
long bb_secstart; /* start of secondary boot block */
long bb_flags; /* unknown; always zero */
long bb_cksum; /* checksum of the boot block, as longs. */
} bb;
long *lp, *ep;
while ((c = getopt(argc, argv, "vns:e:")) != -1) {
switch (c) {
case 'n':
/* Do not actually write the bootblock to disk */
nowrite = 1;
break;
case 'v':
/* Chat */
verbose = 1;
break;
case 's':
isofsblk = atoi(optarg);
break;
case 'e':
isofseblk = atoi(optarg);
break;
default:
usage();
}
}
if (argc - optind < 3)
usage();
boot = argv[optind];
proto = argv[optind + 1];
dev = argv[optind + 2];
if (verbose) {
(void)printf("boot: %s\n", boot);
(void)printf("proto: %s\n", proto);
(void)printf("device: %s\n", dev);
}
/* Load proto blocks into core */
if ((protostore = loadprotoblocks(proto, &protosize)) == NULL)
exit(1);
/* Open and check raw disk device */
if ((devfd = opendev(dev, O_RDONLY, OPENDEV_PART, &dev)) < 0)
err(1, "open: %s", dev);
if (fstat(devfd, &disksb) == -1)
err(1, "fstat: %s", dev);
if (!S_ISCHR(disksb.st_mode))
errx(1, "%s must be a character device node", dev);
if ((minor(disksb.st_rdev) % getmaxpartitions()) != getrawpartition())
errx(1, "%s must be the raw partition", dev);
/* Extract and load block numbers */
if (stat(boot, &bootsb) == -1)
err(1, "stat: %s", boot);
if (!S_ISREG(bootsb.st_mode))
errx(1, "%s must be a regular file", boot);
if ((minor(disksb.st_rdev) / getmaxpartitions()) !=
(minor(bootsb.st_dev) / getmaxpartitions()))
errx(1, "%s must be somewhere on %s", boot, dev);
/*
* Find the offset of the secondary boot block's partition
* into the disk. If disklabels not supported, assume zero.
*/
if (ioctl(devfd, DIOCGDINFO, &dl) != -1) {
partoffset = DL_GETPOFFSET(&dl.d_partitions[minor(bootsb.st_dev) %
getmaxpartitions()]);
} else {
if (errno != ENOTTY)
err(1, "read disklabel: %s", dev);
warnx("couldn't read label from %s, using part offset of 0",
dev);
partoffset = 0;
}
if (verbose)
(void)printf("%s partition offset = 0x%lx\n", boot, partoffset);
/* Sync filesystems (make sure boot's block numbers are stable) */
sync();
sleep(2);
sync();
sleep(2);
if (loadblocknums(boot, devfd, partoffset) != 0)
exit(1);
(void)close(devfd);
if (nowrite)
return 0;
#if 0
/* Write patched proto bootblocks into the superblock */
if (protosize > SBSIZE - DEV_BSIZE)
errx(1, "proto bootblocks too big");
#endif
if ((devfd = opendev(dev, O_RDWR, OPENDEV_PART, &dev)) < 0)
err(1, "open: %s", dev);
if (lseek(devfd, DEV_BSIZE, SEEK_SET) != DEV_BSIZE)
err(1, "lseek bootstrap");
if (write(devfd, protostore, protosize) != protosize)
err(1, "write bootstrap");
if (lseek(devfd, 0, SEEK_SET) != 0)
err(1, "lseek label");
if (read(devfd, &bb, sizeof (bb)) != sizeof (bb))
err(1, "read label");
bb.bb_secsize = 15;
bb.bb_secstart = 1;
bb.bb_flags = 0;
bb.bb_cksum = 0;
for (lp = (long *)&bb, ep = &bb.bb_cksum; lp < ep; lp++)
bb.bb_cksum += *lp;
if (lseek(devfd, 0, SEEK_SET) != 0)
err(1, "lseek label 2");
if (write(devfd, &bb, sizeof bb) != sizeof bb)
err(1, "write label ");
(void)close(devfd);
return 0;
}
char *
loadprotoblocks(char *fname, long *size)
{
int fd, sz;
char *bp;
struct stat statbuf;
u_int64_t *matchp;
/*
* Read the prototype boot block into memory.
*/
if ((fd = open(fname, O_RDONLY)) < 0) {
warn("open: %s", fname);
return NULL;
}
if (fstat(fd, &statbuf) != 0) {
warn("fstat: %s", fname);
close(fd);
return NULL;
}
sz = roundup(statbuf.st_size, DEV_BSIZE);
if ((bp = calloc(sz, 1)) == NULL) {
warnx("malloc: %s: no memory", fname);
close(fd);
return NULL;
}
if (read(fd, bp, statbuf.st_size) != statbuf.st_size) {
warn("read: %s", fname);
free(bp);
close(fd);
return NULL;
}
close(fd);
/*
* Find the magic area of the program, and figure out where
* the 'blocks' struct is, from that.
*/
bbinfolocp = NULL;
for (matchp = (u_int64_t *)bp; (char *)matchp < bp + sz; matchp++) {
if (*matchp != 0xbabefacedeadbeef)
continue;
bbinfolocp = (struct bbinfoloc *)matchp;
if (bbinfolocp->magic1 == 0xbabefacedeadbeef &&
bbinfolocp->magic2 == 0xdeadbeeffacebabe)
break;
bbinfolocp = NULL;
}
if (bbinfolocp == NULL) {
warnx("%s: not a valid boot block?", fname);
return NULL;
}
bbinfop = (struct bbinfo *)(bp + bbinfolocp->end - bbinfolocp->start);
memset(bbinfop, 0, sz - (bbinfolocp->end - bbinfolocp->start));
max_block_count =
((char *)bbinfop->blocks - bp) / sizeof (bbinfop->blocks[0]);
if (verbose) {
(void)printf("boot block info locator at offset 0x%x\n",
(char *)bbinfolocp - bp);
(void)printf("boot block info at offset 0x%x\n",
(char *)bbinfop - bp);
(void)printf("max number of blocks: %d\n", max_block_count);
}
*size = sz;
return (bp);
}
static void
devread(int fd, void *buf, daddr_t blk, size_t size, char *msg)
{
if (lseek(fd, dbtob(blk), SEEK_SET) != dbtob(blk))
err(1, "%s: devread: lseek", msg);
if (read(fd, buf, size) != size)
err(1, "%s: devread: read", msg);
}
static char sblock[SBSIZE];
int
loadblocknums(char *boot, int devfd, unsigned long partoffset)
{
int i, fd, ndb;
struct stat statbuf;
struct statfs statfsbuf;
struct fs *fs;
char *buf;
daddr_t blk, *ap;
struct ufs1_dinode *ip;
int32_t cksum;
/*
* Open 2nd-level boot program and record the block numbers
* it occupies on the filesystem represented by `devfd'.
*/
if ((fd = open(boot, O_RDONLY)) < 0)
err(1, "open: %s", boot);
if (fstatfs(fd, &statfsbuf) != 0)
err(1, "statfs: %s", boot);
if (isofsblk) {
bbinfop->bsize = ISO_DEFAULT_BLOCK_SIZE;
bbinfop->nblocks = isofseblk - isofsblk + 1;
if (bbinfop->nblocks > max_block_count)
errx(1, "%s: Too many blocks", boot);
if (verbose)
(void)printf("%s: starting block %d (%d total):\n\t",
boot, isofsblk, bbinfop->nblocks);
for (i = 0; i < bbinfop->nblocks; i++) {
blk = (isofsblk + i) * (bbinfop->bsize / DEV_BSIZE);
bbinfop->blocks[i] = blk;
if (verbose)
(void)printf("%d ", blk);
}
if (verbose)
(void)printf("\n");
cksum = 0;
for (i = 0; i < bbinfop->nblocks +
(sizeof(*bbinfop) / sizeof(bbinfop->blocks[0])) - 1; i++)
cksum += ((int32_t *)bbinfop)[i];
bbinfop->cksum = -cksum;
return 0;
}
if (strncmp(statfsbuf.f_fstypename, MOUNT_FFS, MFSNAMELEN))
errx(1, "%s: must be on a FFS filesystem", boot);
if (fsync(fd) != 0)
err(1, "fsync: %s", boot);
if (fstat(fd, &statbuf) != 0)
err(1, "fstat: %s", boot);
close(fd);
/* Read superblock */
devread(devfd, sblock, btodb(SBOFF) + partoffset, SBSIZE,
"superblock");
fs = (struct fs *)sblock;
/* Read inode */
if ((buf = malloc(fs->fs_bsize)) == NULL)
errx(1, "No memory for filesystem block");
blk = fsbtodb(fs, ino_to_fsba(fs, statbuf.st_ino));
devread(devfd, buf, blk + partoffset, fs->fs_bsize, "inode");
ip = (struct ufs1_dinode *)(buf) + ino_to_fsbo(fs, statbuf.st_ino);
/*
* Register filesystem block size.
*/
bbinfop->bsize = fs->fs_bsize;
/*
* Get the block numbers; we don't handle fragments
*/
ndb = howmany(ip->di_size, fs->fs_bsize);
if (ndb > max_block_count)
errx(1, "%s: Too many blocks", boot);
/*
* Register block count.
*/
bbinfop->nblocks = ndb;
if (verbose)
(void)printf("%s: block numbers: ", boot);
ap = ip->di_db;
for (i = 0; i < NDADDR && *ap && ndb; i++, ap++, ndb--) {
blk = fsbtodb(fs, *ap);
bbinfop->blocks[i] = blk + partoffset;
if (verbose)
(void)printf("%d ", bbinfop->blocks[i]);
}
if (verbose)
(void)printf("\n");
if (ndb == 0)
goto checksum;
/*
* Just one level of indirections; there isn't much room
* for more in the 1st-level bootblocks anyway.
*/
if (verbose)
(void)printf("%s: block numbers (indirect): ", boot);
blk = ip->di_ib[0];
devread(devfd, buf, blk + partoffset, fs->fs_bsize,
"indirect block");
ap = (daddr_t *)buf;
for (; i < NINDIR(fs) && *ap && ndb; i++, ap++, ndb--) {
blk = fsbtodb(fs, *ap);
bbinfop->blocks[i] = blk + partoffset;
if (verbose)
(void)printf("%d ", bbinfop->blocks[i]);
}
if (verbose)
(void)printf("\n");
if (ndb)
errx(1, "%s: Too many blocks", boot);
checksum:
cksum = 0;
for (i = 0; i < bbinfop->nblocks +
(sizeof (*bbinfop) / sizeof (bbinfop->blocks[0])) - 1; i++)
cksum += ((int32_t *)bbinfop)[i];
bbinfop->cksum = -cksum;
return 0;
}