1/*-
2 * Copyright (c) 2002 Poul-Henning Kamp
3 * Copyright (c) 2002 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by Poul-Henning Kamp
7 * and NAI Labs, the Security Research Division of Network Associates, Inc.
8 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
9 * DARPA CHATS research program.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The names of the authors may not be used to endorse or promote
20 * products derived from this software without specific prior written
21 * permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $FreeBSD: head/sys/geom/geom_sunlabel.c 107953 2002-12-16 22:33:27Z phk $
36 */
37
38
39#include <sys/param.h>
40#ifndef _KERNEL
41#include <stdio.h>
42#include <string.h>
43#include <stdlib.h>
44#include <signal.h>
45#include <err.h>
46#else
47#include <sys/systm.h>
48#include <sys/kernel.h>
49#include <sys/conf.h>
50#include <sys/bio.h>
51#include <sys/malloc.h>
52#include <sys/lock.h>
53#include <sys/mutex.h>
54#endif
55#include <geom/geom.h>
56#include <geom/geom_slice.h>
57#include <machine/endian.h>
58
59#define SUNLABEL_CLASS_NAME "SUN"
60
61struct g_sunlabel_softc {
62 int nheads;
63 int nsects;
64 int nalt;
65};
66
67static int
68g_sunlabel_start(struct bio *bp)
69{
70 struct g_geom *gp;
71 struct g_sunlabel_softc *ms;
72 struct g_slicer *gsp;
73
74 gp = bp->bio_to->geom;
75 gsp = gp->softc;
76 ms = gsp->softc;
77 return (0);
78}
79
80static void
81g_sunlabel_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp)
82{
83 struct g_slicer *gsp;
84 struct g_sunlabel_softc *ms;
85
86 gsp = gp->softc;
87 ms = gsp->softc;
88 g_slice_dumpconf(sb, indent, gp, cp, pp);
89 if (indent == NULL) {
90 sbuf_printf(sb, " sc %u hd %u alt %u",
91 ms->nsects, ms->nheads, ms->nalt);
92 }
93}
94
95static struct g_geom *
96g_sunlabel_taste(struct g_class *mp, struct g_provider *pp, int flags)
97{
98 struct g_geom *gp;
99 struct g_consumer *cp;
100 struct g_provider *pp2;
101 int error, i, npart;
102 u_char *buf;
103 struct g_sunlabel_softc *ms;
104 u_int sectorsize, u, v, csize;
105 off_t mediasize;
106 struct g_slicer *gsp;
107
108 g_trace(G_T_TOPOLOGY, "g_sunlabel_taste(%s,%s)", mp->name, pp->name);
109 g_topology_assert();
110 if (flags == G_TF_NORMAL &&
111 !strcmp(pp->geom->class->name, SUNLABEL_CLASS_NAME))
112 return (NULL);
113 gp = g_slice_new(mp, 8, pp, &cp, &ms, sizeof *ms, g_sunlabel_start);
114 if (gp == NULL)
115 return (NULL);
116 gsp = gp->softc;
117 g_topology_unlock();
118 gp->dumpconf = g_sunlabel_dumpconf;
119 npart = 0;
120 while (1) { /* a trick to allow us to use break */
121 if (gp->rank != 2 && flags == G_TF_NORMAL)
122 break;
123 sectorsize = cp->provider->sectorsize;
124 if (sectorsize < 512)
125 break;
126 gsp->frontstuff = 16 * sectorsize;
127 mediasize = cp->provider->mediasize;
128 buf = g_read_data(cp, 0, sectorsize, &error);
129 if (buf == NULL || error != 0)
130 break;
131
132 /* The second last short is a magic number */
133 if (g_dec_be2(buf + 508) != 0xdabe)
134 break;
135 /* The shortword parity of the entire thing must be even */
136 u = 0;
137 for (i = 0; i < 512; i += 2)
138 u ^= g_dec_be2(buf + i);
139 if (u != 0)
140 break;
141 if (bootverbose) {
142 g_hexdump(buf, 128);
143 for (i = 0; i < 8; i++) {
144 printf("part %d %u %u\n", i,
145 g_dec_be4(buf + 444 + i * 8),
146 g_dec_be4(buf + 448 + i * 8));
147 }
148 printf("v_version = %d\n", g_dec_be4(buf + 128));
149 printf("v_nparts = %d\n", g_dec_be2(buf + 140));
150 for (i = 0; i < 8; i++) {
151 printf("v_part[%d] = %d %d\n",
152 i, g_dec_be2(buf + 142 + i * 4),
153 g_dec_be2(buf + 144 + i * 4));
154 }
155 printf("v_sanity %x\n", g_dec_be4(buf + 186));
156 printf("v_version = %d\n", g_dec_be4(buf + 128));
157 printf("v_rpm %d\n", g_dec_be2(buf + 420));
158 printf("v_totalcyl %d\n", g_dec_be2(buf + 422));
159 printf("v_cyl %d\n", g_dec_be2(buf + 432));
160 printf("v_alt %d\n", g_dec_be2(buf + 434));
161 printf("v_head %d\n", g_dec_be2(buf + 436));
162 printf("v_sec %d\n", g_dec_be2(buf + 438));
163 }
164 ms->nalt = g_dec_be2(buf + 434);
165 ms->nheads = g_dec_be2(buf + 436);
166 ms->nsects = g_dec_be2(buf + 438);
167
168 csize = ms->nheads * ms->nsects;
169
170 for (i = 0; i < 8; i++) {
171 v = g_dec_be4(buf + 444 + i * 8);
172 u = g_dec_be4(buf + 448 + i * 8);
173 if (u == 0)
174 continue;
175 npart++;
176 g_topology_lock();
177 pp2 = g_slice_addslice(gp, i,
178 ((off_t)v * csize) << 9ULL,
179 ((off_t)u) << 9ULL,
180 sectorsize,
181 "%s%c", pp->name, 'a' + i);
182 g_topology_unlock();
183 g_error_provider(pp2, 0);
184 }
185 break;
186 }
187 g_topology_lock();
188 error = g_access_rel(cp, -1, 0, 0);
189 if (npart > 0)
190 return (gp);
191 g_std_spoiled(cp);
192 return (NULL);
193}
194
195static struct g_class g_sunlabel_class = {
196 SUNLABEL_CLASS_NAME,
197 g_sunlabel_taste,
198 NULL,
199 G_CLASS_INITIALIZER
200};
201
202DECLARE_GEOM_CLASS(g_sunlabel_class, g_sunlabel);
2 * Copyright (c) 2002 Poul-Henning Kamp
3 * Copyright (c) 2002 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed for the FreeBSD Project by Poul-Henning Kamp
7 * and NAI Labs, the Security Research Division of Network Associates, Inc.
8 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
9 * DARPA CHATS research program.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The names of the authors may not be used to endorse or promote
20 * products derived from this software without specific prior written
21 * permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $FreeBSD: head/sys/geom/geom_sunlabel.c 107953 2002-12-16 22:33:27Z phk $
36 */
37
38
39#include <sys/param.h>
40#ifndef _KERNEL
41#include <stdio.h>
42#include <string.h>
43#include <stdlib.h>
44#include <signal.h>
45#include <err.h>
46#else
47#include <sys/systm.h>
48#include <sys/kernel.h>
49#include <sys/conf.h>
50#include <sys/bio.h>
51#include <sys/malloc.h>
52#include <sys/lock.h>
53#include <sys/mutex.h>
54#endif
55#include <geom/geom.h>
56#include <geom/geom_slice.h>
57#include <machine/endian.h>
58
59#define SUNLABEL_CLASS_NAME "SUN"
60
61struct g_sunlabel_softc {
62 int nheads;
63 int nsects;
64 int nalt;
65};
66
67static int
68g_sunlabel_start(struct bio *bp)
69{
70 struct g_geom *gp;
71 struct g_sunlabel_softc *ms;
72 struct g_slicer *gsp;
73
74 gp = bp->bio_to->geom;
75 gsp = gp->softc;
76 ms = gsp->softc;
77 return (0);
78}
79
80static void
81g_sunlabel_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp)
82{
83 struct g_slicer *gsp;
84 struct g_sunlabel_softc *ms;
85
86 gsp = gp->softc;
87 ms = gsp->softc;
88 g_slice_dumpconf(sb, indent, gp, cp, pp);
89 if (indent == NULL) {
90 sbuf_printf(sb, " sc %u hd %u alt %u",
91 ms->nsects, ms->nheads, ms->nalt);
92 }
93}
94
95static struct g_geom *
96g_sunlabel_taste(struct g_class *mp, struct g_provider *pp, int flags)
97{
98 struct g_geom *gp;
99 struct g_consumer *cp;
100 struct g_provider *pp2;
101 int error, i, npart;
102 u_char *buf;
103 struct g_sunlabel_softc *ms;
104 u_int sectorsize, u, v, csize;
105 off_t mediasize;
106 struct g_slicer *gsp;
107
108 g_trace(G_T_TOPOLOGY, "g_sunlabel_taste(%s,%s)", mp->name, pp->name);
109 g_topology_assert();
110 if (flags == G_TF_NORMAL &&
111 !strcmp(pp->geom->class->name, SUNLABEL_CLASS_NAME))
112 return (NULL);
113 gp = g_slice_new(mp, 8, pp, &cp, &ms, sizeof *ms, g_sunlabel_start);
114 if (gp == NULL)
115 return (NULL);
116 gsp = gp->softc;
117 g_topology_unlock();
118 gp->dumpconf = g_sunlabel_dumpconf;
119 npart = 0;
120 while (1) { /* a trick to allow us to use break */
121 if (gp->rank != 2 && flags == G_TF_NORMAL)
122 break;
123 sectorsize = cp->provider->sectorsize;
124 if (sectorsize < 512)
125 break;
126 gsp->frontstuff = 16 * sectorsize;
127 mediasize = cp->provider->mediasize;
128 buf = g_read_data(cp, 0, sectorsize, &error);
129 if (buf == NULL || error != 0)
130 break;
131
132 /* The second last short is a magic number */
133 if (g_dec_be2(buf + 508) != 0xdabe)
134 break;
135 /* The shortword parity of the entire thing must be even */
136 u = 0;
137 for (i = 0; i < 512; i += 2)
138 u ^= g_dec_be2(buf + i);
139 if (u != 0)
140 break;
141 if (bootverbose) {
142 g_hexdump(buf, 128);
143 for (i = 0; i < 8; i++) {
144 printf("part %d %u %u\n", i,
145 g_dec_be4(buf + 444 + i * 8),
146 g_dec_be4(buf + 448 + i * 8));
147 }
148 printf("v_version = %d\n", g_dec_be4(buf + 128));
149 printf("v_nparts = %d\n", g_dec_be2(buf + 140));
150 for (i = 0; i < 8; i++) {
151 printf("v_part[%d] = %d %d\n",
152 i, g_dec_be2(buf + 142 + i * 4),
153 g_dec_be2(buf + 144 + i * 4));
154 }
155 printf("v_sanity %x\n", g_dec_be4(buf + 186));
156 printf("v_version = %d\n", g_dec_be4(buf + 128));
157 printf("v_rpm %d\n", g_dec_be2(buf + 420));
158 printf("v_totalcyl %d\n", g_dec_be2(buf + 422));
159 printf("v_cyl %d\n", g_dec_be2(buf + 432));
160 printf("v_alt %d\n", g_dec_be2(buf + 434));
161 printf("v_head %d\n", g_dec_be2(buf + 436));
162 printf("v_sec %d\n", g_dec_be2(buf + 438));
163 }
164 ms->nalt = g_dec_be2(buf + 434);
165 ms->nheads = g_dec_be2(buf + 436);
166 ms->nsects = g_dec_be2(buf + 438);
167
168 csize = ms->nheads * ms->nsects;
169
170 for (i = 0; i < 8; i++) {
171 v = g_dec_be4(buf + 444 + i * 8);
172 u = g_dec_be4(buf + 448 + i * 8);
173 if (u == 0)
174 continue;
175 npart++;
176 g_topology_lock();
177 pp2 = g_slice_addslice(gp, i,
178 ((off_t)v * csize) << 9ULL,
179 ((off_t)u) << 9ULL,
180 sectorsize,
181 "%s%c", pp->name, 'a' + i);
182 g_topology_unlock();
183 g_error_provider(pp2, 0);
184 }
185 break;
186 }
187 g_topology_lock();
188 error = g_access_rel(cp, -1, 0, 0);
189 if (npart > 0)
190 return (gp);
191 g_std_spoiled(cp);
192 return (NULL);
193}
194
195static struct g_class g_sunlabel_class = {
196 SUNLABEL_CLASS_NAME,
197 g_sunlabel_taste,
198 NULL,
199 G_CLASS_INITIALIZER
200};
201
202DECLARE_GEOM_CLASS(g_sunlabel_class, g_sunlabel);