mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
3924ad705e
test is built to test GEOM as running in the kernel. This commit is basically "unifdef -D_KERNEL" to remove the mainly #include related code to support the userland-harness.
268 lines
6.3 KiB
C
268 lines
6.3 KiB
C
/*-
|
|
*
|
|
* Copyright (c) 2002 Peter Grehan.
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* GEOM module for Apple Partition Maps
|
|
* As described in 'Inside Macintosh Vol 3: About the SCSI Manager -
|
|
* The Structure of Block Devices"
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/endian.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/bio.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
|
|
#include <sys/sbuf.h>
|
|
#include <geom/geom.h>
|
|
#include <geom/geom_slice.h>
|
|
|
|
#define APPLE_CLASS_NAME "APPLE"
|
|
|
|
#define NAPMPART 16 /* Max partitions */
|
|
|
|
struct apm_partition {
|
|
char am_sig[2];
|
|
u_int32_t am_mapcnt;
|
|
u_int32_t am_start;
|
|
u_int32_t am_partcnt;
|
|
char am_name[32];
|
|
char am_type[32];
|
|
};
|
|
|
|
struct g_apple_softc {
|
|
u_int16_t dd_bsiz;
|
|
u_int32_t dd_blkcnt;
|
|
u_int16_t dd_drvrcnt;
|
|
u_int32_t am_mapcnt0;
|
|
struct apm_partition apmpart[NAPMPART];
|
|
};
|
|
|
|
static void
|
|
g_dec_drvrdesc(u_char *ptr, struct g_apple_softc *sc)
|
|
{
|
|
sc->dd_bsiz = be16dec(ptr + 2);
|
|
sc->dd_blkcnt = be32dec(ptr + 4);
|
|
sc->dd_drvrcnt = be32dec(ptr + 16);
|
|
}
|
|
|
|
static void
|
|
g_dec_apple_partition(u_char *ptr, struct apm_partition *d)
|
|
{
|
|
d->am_sig[0] = ptr[0];
|
|
d->am_sig[1] = ptr[1];
|
|
d->am_mapcnt = be32dec(ptr + 4);
|
|
d->am_start = be32dec(ptr + 8);
|
|
d->am_partcnt = be32dec(ptr + 12);
|
|
memcpy(d->am_name, ptr + 16, 32);
|
|
memcpy(d->am_type, ptr + 48, 32);
|
|
}
|
|
|
|
static int
|
|
g_apple_start(struct bio *bp)
|
|
{
|
|
struct g_provider *pp;
|
|
struct g_geom *gp;
|
|
struct g_apm_softc *mp;
|
|
struct g_slicer *gsp;
|
|
|
|
pp = bp->bio_to;
|
|
gp = pp->geom;
|
|
gsp = gp->softc;
|
|
mp = gsp->softc;
|
|
if (bp->bio_cmd == BIO_GETATTR) {
|
|
if (g_handleattr_off_t(bp, "APM::offset",
|
|
gsp->slices[pp->index].offset))
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
g_apple_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp,
|
|
struct g_consumer *cp __unused, struct g_provider *pp)
|
|
{
|
|
struct g_apple_softc *mp;
|
|
struct g_slicer *gsp;
|
|
|
|
gsp = gp->softc;
|
|
mp = gsp->softc;
|
|
g_slice_dumpconf(sb, indent, gp, cp, pp);
|
|
if (pp != NULL) {
|
|
if (indent == NULL)
|
|
sbuf_printf(sb, " n %s ty %s",
|
|
mp->apmpart[pp->index].am_name,
|
|
mp->apmpart[pp->index].am_type);
|
|
else {
|
|
sbuf_printf(sb, "%s<name>%s</name>\n", indent,
|
|
mp->apmpart[pp->index].am_name);
|
|
sbuf_printf(sb, "%s<type>%s</type>\n", indent,
|
|
mp->apmpart[pp->index].am_type);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
static void
|
|
g_apple_print()
|
|
{
|
|
|
|
/* XXX */
|
|
}
|
|
#endif
|
|
|
|
static struct g_geom *
|
|
g_apple_taste(struct g_class *mp, struct g_provider *pp, int insist)
|
|
{
|
|
struct g_geom *gp;
|
|
struct g_consumer *cp;
|
|
int error, i, npart;
|
|
struct g_apple_softc *ms;
|
|
struct g_slicer *gsp;
|
|
struct apm_partition *apm;
|
|
u_int sectorsize;
|
|
u_char *buf;
|
|
|
|
g_trace(G_T_TOPOLOGY, "apple_taste(%s,%s)", mp->name, pp->name);
|
|
g_topology_assert();
|
|
gp = g_slice_new(mp, NAPMPART, pp, &cp, &ms, sizeof *ms, g_apple_start);
|
|
if (gp == NULL)
|
|
return (NULL);
|
|
gsp = gp->softc;
|
|
g_topology_unlock();
|
|
gp->dumpconf = g_apple_dumpconf;
|
|
npart = 0;
|
|
do {
|
|
if (gp->rank != 2 && insist == 0)
|
|
break;
|
|
|
|
sectorsize = cp->provider->sectorsize;
|
|
if (sectorsize != 512)
|
|
break;
|
|
|
|
buf = g_read_data(cp, 0, sectorsize, &error);
|
|
if (buf == NULL || error != 0)
|
|
break;
|
|
|
|
/*
|
|
* Test for the sector 0 driver record signature, and
|
|
* validate sector and disk size
|
|
*/
|
|
if (buf[0] != 'E' && buf[1] != 'R') {
|
|
g_free(buf);
|
|
break;
|
|
}
|
|
g_dec_drvrdesc(buf, ms);
|
|
g_free(buf);
|
|
|
|
if (ms->dd_bsiz != 512) {
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Read in the first partition map
|
|
*/
|
|
buf = g_read_data(cp, sectorsize, sectorsize, &error);
|
|
if (buf == NULL || error != 0)
|
|
break;
|
|
|
|
/*
|
|
* Decode the first partition: it's another indication of
|
|
* validity, as well as giving the size of the partition
|
|
* map
|
|
*/
|
|
apm = &ms->apmpart[0];
|
|
g_dec_apple_partition(buf, apm);
|
|
g_free(buf);
|
|
|
|
if (apm->am_sig[0] != 'P' || apm->am_sig[1] != 'M')
|
|
break;
|
|
ms->am_mapcnt0 = apm->am_mapcnt;
|
|
|
|
buf = g_read_data(cp, 2 * sectorsize,
|
|
(NAPMPART - 1) * sectorsize, &error);
|
|
if (buf == NULL || error != 0)
|
|
break;
|
|
|
|
for (i = 1; i < NAPMPART; i++) {
|
|
g_dec_apple_partition(buf + ((i - 1) * sectorsize),
|
|
&ms->apmpart[i]);
|
|
}
|
|
|
|
npart = 0;
|
|
for (i = 0; i < NAPMPART; i++) {
|
|
apm = &ms->apmpart[i];
|
|
|
|
/*
|
|
* Validate partition sig and global mapcount
|
|
*/
|
|
if (apm->am_sig[0] != 'P' ||
|
|
apm->am_sig[1] != 'M')
|
|
continue;
|
|
if (apm->am_mapcnt != ms->am_mapcnt0)
|
|
continue;
|
|
|
|
if (bootverbose) {
|
|
printf("APM Slice %d (%s/%s) on %s:\n",
|
|
i + 1, apm->am_name, apm->am_type,
|
|
gp->name);
|
|
/* g_apple_print(i, dp + i); */
|
|
}
|
|
npart++;
|
|
g_topology_lock();
|
|
g_slice_config(gp, i, G_SLICE_CONFIG_SET,
|
|
(off_t)apm->am_start << 9ULL,
|
|
(off_t)apm->am_partcnt << 9ULL,
|
|
sectorsize,
|
|
"%ss%d", gp->name, i + 1);
|
|
g_topology_unlock();
|
|
}
|
|
break;
|
|
} while(0);
|
|
g_topology_lock();
|
|
g_access_rel(cp, -1, 0, 0);
|
|
if (LIST_EMPTY(&gp->provider)) {
|
|
g_std_spoiled(cp);
|
|
return (NULL);
|
|
}
|
|
return (gp);
|
|
}
|
|
|
|
|
|
static struct g_class g_apple_class = {
|
|
.name = APPLE_CLASS_NAME,
|
|
.taste = g_apple_taste,
|
|
G_CLASS_INITIALIZER
|
|
};
|
|
|
|
DECLARE_GEOM_CLASS(g_apple_class, g_apple);
|