installboot (from netbsd)

2 files changed, 490 insertions, 0 deletions

diff --git a/sys/arch/sparc64/stand/installboot/Makefile b/sys/arch/sparc64/stand/installboot/Makefile
new file mode 100644
index 00000000000..e14614b3363
--- /dev/null
+++ b/sys/arch/sparc64/stand/installboot/Makefile
@@ -0,0 +1,28 @@
+#	$NetBSD: Makefile,v 1.13 2000/08/16 08:24:01 mrg Exp $
+
+.include <bsd.own.mk>
+
+WARNS?=1
+PROG=	installboot
+SRCS=	installboot.c loadfile.c
+NOMAN=
+
+LIBSA_I=${.CURDIR}/../../../../lib/libsa
+
+.PATH.c: ${.CURDIR}/../../../../lib/libsa
+
+CPPFLAGS+=-I${LIBSA_I} -I. -I${.CURDIR}/../../../.. -I${.OBJDIR}
+
+LDSTATIC?=	-static
+
+.if !make(obj)
+.BEGIN:
+	@([ -h machine ] || ln -s ${.CURDIR}/../../../${MACHINE}/include machine)
+	@([ -h sparc ] || ln -s ${.CURDIR}/../../../sparc/include sparc)
+.NOPATH: machine sparc
+CLEANFILES+= machine sparc
+.endif
+
+CFLAGS+= -U_STANDALONE
+
+.include <bsd.prog.mk>
diff --git a/sys/arch/sparc64/stand/installboot/installboot.c b/sys/arch/sparc64/stand/installboot/installboot.c
new file mode 100644
index 00000000000..3cf17f10526
--- /dev/null
+++ b/sys/arch/sparc64/stand/installboot/installboot.c
@@ -0,0 +1,462 @@
+/*	$NetBSD: installboot.c,v 1.8 2001/02/19 22:48:59 cgd Exp $ */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Paul Kranenburg.
+ *
+ * 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/param.h>
+#include <sys/mount.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <sys/mman.h>
+#include <sys/utsname.h>
+#include <ufs/ufs/dinode.h>
+#include <ufs/ufs/dir.h>
+#include <ufs/ffs/fs.h>
+#include <err.h>
+#include <a.out.h>
+#include <fcntl.h>
+#include <nlist.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "loadfile.h"
+
+int	verbose, nowrite, sparc64, uflag, hflag = 1;
+char	*boot, *proto, *dev;
+
+#if 0
+#ifdef __ELF__
+#define SYMNAME(a)	a
+#else
+#define SYMNAME(a)	__CONCAT("_",a)
+#endif
+#else
+/* XXX: Hack in libc nlist works with both formats */
+#define SYMNAME(a)	__CONCAT("_",a)
+#endif
+
+struct nlist nl[] = {
+#define X_BLOCKTABLE	0
+	{ {SYMNAME("block_table")} },
+#define X_BLOCKCOUNT	1
+	{ {SYMNAME("block_count")} },
+#define X_BLOCKSIZE	2
+	{ {SYMNAME("block_size")} },
+	{ {NULL} }
+};
+daddr_t	*block_table;		/* block number array in prototype image */
+int32_t	*block_count_p;		/* size of this array */
+int32_t	*block_size_p;		/* filesystem block size */
+int32_t	max_block_count;
+
+char		*loadprotoblocks __P((char *, size_t *));
+int		loadblocknums __P((char *, int));
+static void	devread __P((int, void *, daddr_t, size_t, char *));
+static void	usage __P((void));
+int 		main __P((int, char *[]));
+
+static void
+usage()
+{
+	extern char *__progname;
+	const char *progname = __progname;
+
+	if (sparc64)
+		(void)fprintf(stderr,
+		    "Usage: %s [-nv] <bootblk> <device>\n"
+		    "       %s -U [-nv] <boot> <proto> <device>\n",
+		    progname, progname);
+	else
+		(void)fprintf(stderr,
+		    "Usage: %s [-nv] <boot> <proto> <device>\n"
+		    "       %s -u [-n] [-v] <bootblk> <device>\n",
+		    progname, progname);
+	exit(1);
+}
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	int	c;
+	int	devfd;
+	char	*protostore;
+	size_t	protosize;
+	struct	utsname utsname;
+
+	/*
+	 * For UltraSPARC machines, we turn on the uflag by default.
+	 */
+	if (uname(&utsname) == -1)
+		err(1, "uname");
+	if (strcmp(utsname.machine, "sparc64") == 0)
+		sparc64 = uflag = 1;
+
+	while ((c = getopt(argc, argv, "a:nhuUv")) != -1) {
+		switch (c) {
+		case 'a':
+			warnx("-a option is obsolete");
+			break;
+		case 'h':	/* Note: for backwards compatibility */
+			/* Don't strip a.out header */
+			warnx("-h option is obsolete");
+			break;
+		case 'n':
+			/* Do not actually write the bootblock to disk */
+			nowrite = 1;
+			break;
+		case 'u':
+			/* UltraSPARC boot block */
+			uflag = 1;
+			break;
+		case 'U':
+			/* Force non-ultrasparc */
+			uflag = 0;
+			break;
+		case 'v':
+			/* Chat */
+			verbose = 1;
+			break;
+		default:
+			usage();
+		}
+	}
+
+	if (uflag) {
+		if (argc - optind < 2)
+			usage();
+	} else {
+		if (argc - optind < 3)
+			usage();
+		boot = argv[optind++];
+	}
+
+	proto = argv[optind++];
+	dev = argv[optind];
+
+	if (verbose) {
+		if (!uflag)
+			printf("boot: %s\n", boot);
+		printf("proto: %s\n", proto);
+		printf("device: %s\n", dev);
+	}
+
+	/* Load proto blocks into core */
+	if (uflag == 0) {
+		if ((protostore = loadprotoblocks(proto, &protosize)) == NULL)
+			exit(1);
+
+		/* Open and check raw disk device */
+		if ((devfd = open(dev, O_RDONLY, 0)) < 0)
+			err(1, "open: %s", dev);
+
+		/* Extract and load block numbers */
+		if (loadblocknums(boot, devfd) != 0)
+			exit(1);
+
+		(void)close(devfd);
+	} else {
+		struct stat sb;
+		int protofd;
+		size_t blanklen;
+
+		if ((protofd = open(proto, O_RDONLY)) < 0)
+			err(1, "open: %s", proto);
+
+		if (fstat(protofd, &sb) < 0)
+			err(1, "fstat: %s", proto);
+
+		/* there must be a better way */
+		blanklen = DEV_BSIZE - ((sb.st_size + DEV_BSIZE) & (DEV_BSIZE - 1));
+		protosize = sb.st_size + blanklen;
+		if ((protostore = mmap(0, (size_t)protosize,
+		    PROT_READ|PROT_WRITE, MAP_PRIVATE,
+		    protofd, 0)) == MAP_FAILED)
+			err(1, "mmap: %s", proto);
+		/* and provide the rest of the block */
+		if (blanklen)
+			memset(protostore + sb.st_size, 0, blanklen);
+	}
+
+	if (nowrite)
+		return 0;
+
+	/* Write patched proto bootblocks into the superblock */
+	if (protosize > SBSIZE - DEV_BSIZE)
+		errx(1, "proto bootblocks too big");
+
+	if ((devfd = open(dev, O_RDWR, 0)) < 0)
+		err(1, "open: %s", dev);
+
+	if (lseek(devfd, DEV_BSIZE, SEEK_SET) != DEV_BSIZE)
+		err(1, "lseek bootstrap");
+
+	/* Sync filesystems (to clean in-memory superblock?) */
+	sync();
+
+	if (write(devfd, protostore, protosize) != protosize)
+		err(1, "write bootstrap");
+	(void)close(devfd);
+	return 0;
+}
+
+char *
+loadprotoblocks(fname, size)
+	char *fname;
+	size_t *size;
+{
+	int	fd, sz;
+	u_long	ap, bp, st, en;
+	u_long	marks[MARK_MAX];
+
+	/* Locate block number array in proto file */
+	if (nlist(fname, nl) != 0) {
+		warnx("nlist: %s: symbols not found", fname);
+		return NULL;
+	}
+	if (nl[X_BLOCKTABLE].n_type != N_DATA + N_EXT) {
+		warnx("nlist: %s: wrong type", nl[X_BLOCKTABLE].n_un.n_name);
+		return NULL;
+	}
+	if (nl[X_BLOCKCOUNT].n_type != N_DATA + N_EXT) {
+		warnx("nlist: %s: wrong type", nl[X_BLOCKCOUNT].n_un.n_name);
+		return NULL;
+	}
+	if (nl[X_BLOCKSIZE].n_type != N_DATA + N_EXT) {
+		warnx("nlist: %s: wrong type", nl[X_BLOCKSIZE].n_un.n_name);
+		return NULL;
+	}
+
+	marks[MARK_START] = 0;
+	if ((fd = loadfile(fname, marks, COUNT_TEXT|COUNT_DATA)) == -1)
+		return NULL;
+	(void)close(fd);
+
+	sz = (marks[MARK_END] - marks[MARK_START]) + (hflag ? 32 : 0);
+	sz = roundup(sz, DEV_BSIZE);
+	st = marks[MARK_START];
+	en = marks[MARK_ENTRY];
+
+	if ((ap = (u_long)malloc(sz)) == NULL) {
+		warn("malloc: %s", "");
+		return NULL;
+	}
+
+	bp = ap + (hflag ? 32 : 0);
+	marks[MARK_START] = bp - st;
+	if ((fd = loadfile(fname, marks, LOAD_TEXT|LOAD_DATA)) == -1)
+		return NULL;
+	(void)close(fd);
+
+	block_table = (daddr_t *) (bp + nl[X_BLOCKTABLE].n_value - st);
+	block_count_p = (int32_t *)(bp + nl[X_BLOCKCOUNT].n_value - st);
+	block_size_p = (int32_t *) (bp + nl[X_BLOCKSIZE].n_value - st);
+	if ((int)(u_long)block_table & 3) {
+		warn("%s: invalid address: block_table = %p",
+		     fname, block_table);
+		free((void *)bp);
+		return NULL;
+	}
+	if ((int)(u_long)block_count_p & 3) {
+		warn("%s: invalid address: block_count_p = %p",
+		     fname, block_count_p);
+		free((void *)bp);
+		return NULL;
+	}
+	if ((int)(u_long)block_size_p & 3) {
+		warn("%s: invalid address: block_size_p = %p",
+		     fname, block_size_p);
+		free((void *)bp);
+		return NULL;
+	}
+	max_block_count = *block_count_p;
+
+	if (verbose) {
+		printf("%s: entry point %#lx\n", fname, en);
+		printf("%s: a.out header %s\n", fname,
+		    hflag ? "left on" : "stripped off");
+		printf("proto bootblock size %d\n", sz);
+		printf("room for %d filesystem blocks at %#lx\n",
+		    max_block_count, nl[X_BLOCKTABLE].n_value);
+	}
+
+	if (hflag) {
+		/*
+		 * We convert the a.out header in-vitro into something that
+		 * Sun PROMs understand.
+		 * Old-style (sun4) ROMs do not expect a header at all, so
+		 * we turn the first two words into code that gets us past
+		 * the 32-byte header where the actual code begins. In assembly
+		 * speak:
+		 *	.word	MAGIC		! a NOP
+		 *	ba,a	start		!
+		 *	.skip	24		! pad
+		 * start:
+		 */
+#define SUN_MAGIC	0x01030107
+#define SUN4_BASTART	0x30800007	/* i.e.: ba,a `start' */
+		*((int *)ap) = SUN_MAGIC;
+		*((int *)ap + 1) = SUN4_BASTART;
+	}
+
+	*size = sz;
+	return (char *)ap;
+}
+
+static void
+devread(fd, buf, blk, size, msg)
+	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(boot, devfd)
+char	*boot;
+int	devfd;
+{
+	int		i, fd;
+	struct	stat	statbuf;
+	struct	statfs	statfsbuf;
+	struct fs	*fs;
+	char		*buf;
+	daddr_t		blk, *ap;
+	struct dinode	*ip;
+	int		ndb;
+
+	/*
+	 * 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 (strncmp(statfsbuf.f_fstypename, "ffs", MFSNAMELEN) &&
+	    strncmp(statfsbuf.f_fstypename, "ufs", MFSNAMELEN)) {
+		errx(1, "%s: must be on an 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), 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, fs->fs_bsize, "inode");
+	ip = (struct dinode *)(buf) + ino_to_fsbo(fs, statbuf.st_ino);
+
+	/*
+	 * Register filesystem block size.
+	 */
+	*block_size_p = 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.
+	 */
+	*block_count_p = ndb;
+
+	if (verbose)
+		printf("%s: block numbers: ", boot);
+	ap = ip->di_db;
+	for (i = 0; i < NDADDR && *ap && ndb; i++, ap++, ndb--) {
+		blk = fsbtodb(fs, *ap);
+		block_table[i] = blk;
+		if (verbose)
+			printf("%d ", blk);
+	}
+	if (verbose)
+		printf("\n");
+
+	if (ndb == 0)
+		return 0;
+
+	/*
+	 * Just one level of indirections; there isn't much room
+	 * for more in the 1st-level bootblocks anyway.
+	 */
+	if (verbose)
+		printf("%s: block numbers (indirect): ", boot);
+	blk = ip->di_ib[0];
+	devread(devfd, buf, blk, fs->fs_bsize, "indirect block");
+	ap = (daddr_t *)buf;
+	for (; i < NINDIR(fs) && *ap && ndb; i++, ap++, ndb--) {
+		blk = fsbtodb(fs, *ap);
+		block_table[i] = blk;
+		if (verbose)
+			printf("%d ", blk);
+	}
+	if (verbose)
+		printf("\n");
+
+	if (ndb)
+		errx(1, "%s: Too many blocks", boot);
+	return 0;
+}