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/*-
* Copyright (c) 2002 Poul-Henning Kamp
* Copyright (c) 2002 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed for the FreeBSD Project by Poul-Henning Kamp
* and NAI Labs, the Security Research Division of Network Associates, Inc.
* under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
* DARPA CHATS research program.
*
* 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. The names of the authors 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 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 AUTHOR 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#ifndef _KERNEL
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <err.h>
#else
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/bio.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#endif
#include <sys/errno.h>
#include <geom/geom.h>
#include <geom/geom_slice.h>
#include <machine/endian.h>
#define PC98_CLASS_NAME "PC98"
struct g_pc98_softc {
int foo;
};
static int
g_pc98_start(struct bio *bp)
{
struct g_geom *gp;
struct g_pc98_softc *ms;
struct g_slicer *gsp;
gp = bp->bio_to->geom;
gsp = gp->softc;
ms = gsp->softc;
return (0);
}
static void
g_pc98_dumpconf(struct sbuf *sb, char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp)
{
g_slice_dumpconf(sb, indent, gp, cp, pp);
}
static struct g_geom *
g_pc98_taste(struct g_class *mp, struct g_provider *pp, int flags)
{
struct g_geom *gp;
struct g_consumer *cp;
struct g_provider *pp2;
int error, i, npart;
u_char *buf;
struct g_pc98_softc *ms;
u_int sectorsize, u, v;
u_int fwsect, fwhead;
off_t mediasize, start, length;
struct g_slicer *gsp;
g_trace(G_T_TOPOLOGY, "g_pc98_taste(%s,%s)", mp->name, pp->name);
g_topology_assert();
if (flags == G_TF_NORMAL &&
!strcmp(pp->geom->class->name, PC98_CLASS_NAME))
return (NULL);
gp = g_slice_new(mp, 8, pp, &cp, &ms, sizeof *ms, g_pc98_start);
if (gp == NULL)
return (NULL);
gsp = gp->softc;
g_topology_unlock();
gp->dumpconf = g_pc98_dumpconf;
npart = 0;
while (1) { /* a trick to allow us to use break */
if (gp->rank != 2 && flags == G_TF_NORMAL)
break;
error = g_getattr("GEOM::sectorsize", cp, §orsize);
if (error) {
sectorsize = 512;
printf("g_pc98_taste: error %d Sectors are %d bytes\n",
error, sectorsize);
}
error = g_getattr("GEOM::mediasize", cp, &mediasize);
if (error) {
mediasize = 0;
printf("g_error %d Mediasize is %lld bytes\n",
error, (long long)mediasize);
}
error = g_getattr("GEOM::fwsectors", cp, &fwsect);
if (error || fwsect == 0) {
fwsect = 17;
printf("g_pc98_taste: error %d guessing %d sectors\n",
error, fwsect);
}
error = g_getattr("GEOM::fwheads", cp, &fwhead);
if (error || fwhead == 0) {
fwhead = 8;
printf("g_pc98_taste: error %d guessing %d heads\n",
error, fwhead);
}
gsp->frontstuff = fwsect * sectorsize;
buf = g_read_data(cp, 0,
sectorsize < 1024 ? 1024 : sectorsize, &error);
if (buf == NULL || error != 0)
break;
if (buf[0x1fe] != 0x55 || buf[0x1ff] != 0xaa)
break;
if (buf[4] != 'I' || buf[5] != 'P' ||
buf[6] != 'L' || buf[7] != '1')
break;
for (i = 0; i < 16; i++) {
v = g_dec_le2(buf + 512 + 10 + i * 32);
u = g_dec_le2(buf + 512 + 14 + i * 32);
if (u == 0)
continue;
printf("Index: %d\n", i);
g_hexdump(buf+512 + i * 32, 32);
start = v * fwsect * fwhead * sectorsize;
length = (u - v) * fwsect * fwhead * sectorsize;
printf("c%d - c%d (%llx - %llx) = %s\n",
v, u, start, length, buf + 512 + 16 + i * 32);
npart++;
pp2 = g_slice_addslice(gp, i,
start, length,
"%ss%d", pp->name, 1 + i);
g_error_provider(pp2, 0);
}
break;
}
g_topology_lock();
error = g_access_rel(cp, -1, 0, 0);
if (npart > 0)
return (gp);
g_std_spoiled(cp);
return (NULL);
}
static struct g_class g_pc98_class = {
PC98_CLASS_NAME,
g_pc98_taste,
NULL,
G_CLASS_INITIALIZER
};
DECLARE_GEOM_CLASS(g_pc98_class, g_pc98);
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