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      1 /*	$NetBSD: fstypes.c,v 1.14 2024/05/19 15:48:57 tsutsui Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Matt Fredette and Luke Mewburn.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #if HAVE_NBTOOL_CONFIG_H
     33 #include "nbtool_config.h"
     34 #endif
     35 
     36 #include <sys/cdefs.h>
     37 #if !defined(__lint)
     38 __RCSID("$NetBSD: fstypes.c,v 1.14 2024/05/19 15:48:57 tsutsui Exp $");
     39 #endif	/* !__lint */
     40 
     41 #include <sys/types.h>
     42 
     43 #include <assert.h>
     44 #include <err.h>
     45 #include <stdio.h>
     46 
     47 #include "installboot.h"
     48 
     49 struct ib_fs fstypes[] = {
     50 #ifndef NO_STAGE2
     51 	{
     52 		.name = "ffs",
     53 		.match = ffs_match,
     54 		.findstage2 = ffs_findstage2
     55 	},
     56 	{
     57 		.name = "raid",
     58 		.match = raid_match,
     59 		.findstage2 = ffs_findstage2
     60 	},
     61 #ifdef SUPPORT_CD9660
     62 	{
     63 		.name = "cd9660",
     64 		.match = cd9660_match,
     65 		.findstage2 = cd9660_findstage2
     66 	},
     67 #endif
     68 	/* raw_match() always matches, so raw should be at the end. */
     69 	{
     70 		.name = "raw",
     71 		.match = raw_match,
     72 		.findstage2 = raw_findstage2
     73 	},
     74 #endif
     75 	{
     76 		.name = NULL
     77 	}
     78 };
     79 
     80 #ifndef NO_STAGE2
     81 int
     82 hardcode_stage2(ib_params *params, uint32_t *maxblk, ib_block *blocks)
     83 {
     84 	struct stat	s2sb;
     85 	uint32_t	nblk, i;
     86 
     87 	assert(params != NULL);
     88 	assert(params->stage2 != NULL);
     89 	assert(maxblk != NULL);
     90 	assert(blocks != NULL);
     91 	assert((params->flags & IB_STAGE2START) != 0);
     92 	assert(params->fstype != NULL);
     93 	assert(params->fstype->blocksize != 0);
     94 
     95 	if (stat(params->stage2, &s2sb) == -1) {
     96 		warn("Examining `%s'", params->stage2);
     97 		return (0);
     98 	}
     99 	if (!S_ISREG(s2sb.st_mode)) {
    100 		warnx("`%s' must be a regular file", params->stage2);
    101 		return (0);
    102 	}
    103 
    104 	nblk = s2sb.st_size / params->fstype->blocksize;
    105 	if (s2sb.st_size % params->fstype->blocksize != 0)
    106 		nblk++;
    107 #if 0
    108 	fprintf(stderr, "for %s got size %lld blksize %u blocks %u\n",
    109 	    params->stage2, s2sb.st_size, params->fstype->blocksize, nblk);
    110 #endif
    111 	if (nblk > *maxblk) {
    112                 warnx("Secondary bootstrap `%s' has too many blocks "
    113                     "(calculated %u, maximum %u)",
    114 		    params->stage2, nblk, *maxblk);
    115                 return (0);
    116         }
    117 
    118 	for (i = 0; i < nblk; i++) {
    119 		blocks[i].block = params->s2start +
    120 		    i * (params->fstype->blocksize / params->sectorsize);
    121 		blocks[i].blocksize = params->fstype->blocksize;
    122 	}
    123 	*maxblk = nblk;
    124 
    125 	return (1);
    126 }
    127 
    128 
    129 int
    130 raw_match(ib_params *params)
    131 {
    132 
    133 	assert(params != NULL);
    134 	assert(params->fstype != NULL);
    135 
    136 	params->fstype->blocksize = 8192;		// XXX: hardcode
    137 	return (1);		/* can always write to a "raw" file system */
    138 }
    139 
    140 int
    141 raw_findstage2(ib_params *params, uint32_t *maxblk, ib_block *blocks)
    142 {
    143 
    144 	assert(params != NULL);
    145 	assert(params->stage2 != NULL);
    146 	assert(maxblk != NULL);
    147 	assert(blocks != NULL);
    148 
    149 	if ((params->flags & IB_STAGE2START) == 0) {
    150 		warnx("Need `-B bno' for raw file systems");
    151 		return (0);
    152 	}
    153 	return (hardcode_stage2(params, maxblk, blocks));
    154 }
    155 #endif
    156