diff options
| -rw-r--r-- | sys/conf/files | 1 | ||||
| -rw-r--r-- | sys/geom/geom_pc98.c | 189 |
2 files changed, 190 insertions, 0 deletions
diff --git a/sys/conf/files b/sys/conf/files index b09adfc..2ec6957 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -695,6 +695,7 @@ geom/geom_event.c optional geom geom/geom_io.c optional geom geom/geom_kern.c optional geom geom/geom_mbr.c optional geom +geom/geom_pc98.c optional geom geom/geom_slice.c optional geom geom/geom_subr.c optional geom geom/geom_sunlabel.c optional geom diff --git a/sys/geom/geom_pc98.c b/sys/geom/geom_pc98.c new file mode 100644 index 0000000..ce7e9e4 --- /dev/null +++ b/sys/geom/geom_pc98.c @@ -0,0 +1,189 @@ +/*- + * 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-class" + +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, j, npart; + u_char *buf; + struct g_pc98_softc *ms; + u_int secsize, u, v; + u_int fwsect, fwhead; + off_t mediasize, start, length; + + 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); + 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; + j = sizeof secsize; + error = g_io_getattr("GEOM::sectorsize", cp, &j, &secsize); + if (error) { + secsize = 512; + printf("g_pc98_taste: error %d Sectors are %d bytes\n", + error, secsize); + } + j = sizeof mediasize; + error = g_io_getattr("GEOM::mediasize", cp, &j, &mediasize); + if (error) { + mediasize = 0; + printf("g_error %d Mediasize is %lld bytes\n", + error, (long long)mediasize); + } + j = sizeof fwsect; + error = g_io_getattr("GEOM::fwsectors", cp, &j, &fwsect); + if (error || fwsect == 0) { + fwsect = 17; + printf("g_pc98_taste: error %d guessing %d sectors\n", + error, fwsect); + } + j = sizeof fwhead; + error = g_io_getattr("GEOM::fwheads", cp, &j, &fwhead); + if (error || fwhead == 0) { + fwhead = 8; + printf("g_pc98_taste: error %d guessing %d heads\n", + error, fwhead); + } + buf = g_read_data(cp, 0, + secsize < 1024 ? 1024 : secsize, &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 * secsize; + length = (u - v) * fwsect * fwhead * secsize; + 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, + g_slice_access, + g_slice_orphan, + NULL, + G_CLASS_INITSTUFF +}; + +DECLARE_GEOM_CLASS(g_pc98_class, g_pc98); |
