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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>
#include <sys/endian.h>
#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>
#include <geom/geom.h>
#include <geom/geom_slice.h>
#include <machine/endian.h>
#define SUNLABEL_CLASS_NAME "SUN"
struct g_sunlabel_softc {
int sectorsize;
int nheads;
int nsects;
int nalt;
};
static int
g_sunlabel_modify(struct g_geom *gp, struct g_sunlabel_softc *ms, u_char *sec0)
{
int i, error;
u_int u, v, csize;
/* The second last short is a magic number */
if (be16dec(sec0 + 508) != 0xdabe)
return (EBUSY);
/* The shortword parity of the entire thing must be even */
u = 0;
for (i = 0; i < 512; i += 2)
u ^= be16dec(sec0 + i);
if (u != 0)
return(EBUSY);
csize = be16dec(sec0 + 436) * be16dec(sec0 + 438);
for (i = 0; i < 8; i++) {
v = be32dec(sec0 + 444 + i * 8);
u = be32dec(sec0 + 448 + i * 8);
g_topology_lock();
error = g_slice_config(gp, i, G_SLICE_CONFIG_CHECK,
((off_t)v * csize) << 9ULL,
((off_t)u) << 9ULL,
ms->sectorsize,
"%s%c", gp->name, 'a' + i);
g_topology_unlock();
if (error)
return (error);
}
for (i = 0; i < 8; i++) {
v = be32dec(sec0 + 444 + i * 8);
u = be32dec(sec0 + 448 + i * 8);
g_topology_lock();
g_slice_config(gp, i, G_SLICE_CONFIG_SET,
((off_t)v * csize) << 9ULL,
((off_t)u) << 9ULL,
ms->sectorsize,
"%s%c", gp->name, 'a' + i);
g_topology_unlock();
}
ms->nalt = be16dec(sec0 + 434);
ms->nheads = be16dec(sec0 + 436);
ms->nsects = be16dec(sec0 + 438);
return (0);
}
static int
g_sunlabel_start(struct bio *bp)
{
struct g_geom *gp;
struct g_sunlabel_softc *ms;
struct g_slicer *gsp;
gp = bp->bio_to->geom;
gsp = gp->softc;
ms = gsp->softc;
return (0);
}
static void
g_sunlabel_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp)
{
struct g_slicer *gsp;
struct g_sunlabel_softc *ms;
gsp = gp->softc;
ms = gsp->softc;
g_slice_dumpconf(sb, indent, gp, cp, pp);
if (indent == NULL) {
sbuf_printf(sb, " sc %u hd %u alt %u",
ms->nsects, ms->nheads, ms->nalt);
}
}
static struct g_geom *
g_sunlabel_taste(struct g_class *mp, struct g_provider *pp, int flags)
{
struct g_geom *gp;
struct g_consumer *cp;
int error, i, npart;
u_char *buf;
struct g_sunlabel_softc *ms;
off_t mediasize;
struct g_slicer *gsp;
g_trace(G_T_TOPOLOGY, "g_sunlabel_taste(%s,%s)", mp->name, pp->name);
g_topology_assert();
if (flags == G_TF_NORMAL &&
!strcmp(pp->geom->class->name, SUNLABEL_CLASS_NAME))
return (NULL);
gp = g_slice_new(mp, 8, pp, &cp, &ms, sizeof *ms, g_sunlabel_start);
if (gp == NULL)
return (NULL);
gsp = gp->softc;
g_topology_unlock();
gp->dumpconf = g_sunlabel_dumpconf;
npart = 0;
do {
if (gp->rank != 2 && flags == G_TF_NORMAL)
break;
ms->sectorsize = cp->provider->sectorsize;
if (ms->sectorsize < 512)
break;
mediasize = cp->provider->mediasize;
buf = g_read_data(cp, 0, ms->sectorsize, &error);
if (buf == NULL || error != 0)
break;
if (bootverbose) {
g_hexdump(buf, 128);
for (i = 0; i < 8; i++) {
printf("part %d %u %u\n", i,
be32dec(buf + 444 + i * 8),
be32dec(buf + 448 + i * 8));
}
printf("v_version = %d\n", be32dec(buf + 128));
printf("v_nparts = %d\n", be16dec(buf + 140));
for (i = 0; i < 8; i++) {
printf("v_part[%d] = %d %d\n",
i, be16dec(buf + 142 + i * 4),
be16dec(buf + 144 + i * 4));
}
printf("v_sanity %x\n", be32dec(buf + 186));
printf("v_version = %d\n", be32dec(buf + 128));
printf("v_rpm %d\n", be16dec(buf + 420));
printf("v_totalcyl %d\n", be16dec(buf + 422));
printf("v_cyl %d\n", be16dec(buf + 432));
printf("v_alt %d\n", be16dec(buf + 434));
printf("v_head %d\n", be16dec(buf + 436));
printf("v_sec %d\n", be16dec(buf + 438));
}
g_sunlabel_modify(gp, ms, buf);
break;
} while (0);
g_topology_lock();
g_access_rel(cp, -1, 0, 0);
if (LIST_EMPTY(&gp->provider)) {
g_std_spoiled(cp);
return (NULL);
#ifdef notyet
} else {
g_slice_conf_hot(gp, 0, 0, ms->sectorsize);
#endif
}
return (gp);
}
static struct g_class g_sunlabel_class = {
.name = SUNLABEL_CLASS_NAME,
.taste = g_sunlabel_taste,
G_CLASS_INITIALIZER
};
DECLARE_GEOM_CLASS(g_sunlabel_class, g_sunlabel);
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