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 *
| 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_mbr.c 93776 2002-04-04 09:54:13Z phk $
| 35 * $FreeBSD: head/sys/geom/geom_mbr.c 94287 2002-04-09 15:43:32Z phk $
|
36 */
37
38#include <sys/param.h>
39#ifndef _KERNEL
40#include <stdio.h>
41#include <string.h>
42#include <signal.h>
43#include <sys/param.h>
44#include <stdlib.h>
45#include <err.h>
46#else
47#include <sys/systm.h>
48#include <sys/kernel.h>
49#include <sys/malloc.h>
50#include <sys/bio.h>
51#include <sys/lock.h>
52#include <sys/mutex.h>
53#endif
54
55#include <sys/errno.h>
56#include <sys/disklabel.h>
57#include <sys/sbuf.h>
58#include <geom/geom.h>
59#include <geom/geom_slice.h>
60
61#define MBR_CLASS_NAME "MBR-class"
62#define MBREXT_CLASS_NAME "MBREXT-class"
63
64static void
65g_dec_dos_partition(u_char *ptr, struct dos_partition *d)
66{
67
68 d->dp_flag = ptr[0];
69 d->dp_shd = ptr[1];
70 d->dp_ssect = ptr[2];
71 d->dp_scyl = ptr[3];
72 d->dp_typ = ptr[4];
73 d->dp_ehd = ptr[5];
74 d->dp_esect = ptr[6];
75 d->dp_ecyl = ptr[7];
76 d->dp_start = g_dec_le4(ptr + 8);
77 d->dp_size = g_dec_le4(ptr + 12);
78}
79
80#if 0
81static void
82g_enc_dos_partition(u_char *ptr, struct dos_partition *d)
83{
84
85 ptr[0] = d->dp_flag;
86 ptr[1] = d->dp_shd;
87 ptr[2] = d->dp_ssect;
88 ptr[3] = d->dp_scyl;
89 ptr[4] = d->dp_typ;
90 ptr[5] = d->dp_ehd;
91 ptr[6] = d->dp_esect;
92 ptr[7] = d->dp_ecyl;
93 g_enc_le4(ptr + 8, d->dp_start);
94 g_enc_le4(ptr + 12, d->dp_size);
95}
96#endif
97
98struct g_mbr_softc {
99 int type [NDOSPART];
100 struct dos_partition dospart[NDOSPART];
101};
102
103static int
104g_mbr_start(struct bio *bp)
105{
106 struct g_provider *pp;
107 struct g_geom *gp;
108 struct g_mbr_softc *mp;
109 struct g_slicer *gsp;
110 int index;
111
112 pp = bp->bio_to;
113 index = pp->index;
114 gp = pp->geom;
115 gsp = gp->softc;
116 mp = gsp->softc;
117 if (bp->bio_cmd == BIO_GETATTR) {
118 if (g_haveattr_int(bp, "MBR::type", mp->type[index]))
119 return (1);
120 }
121 return (0);
122}
123
124static void
125g_mbr_dumpconf(struct sbuf *sb, char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp)
126{
127 struct g_mbr_softc *mp;
128 struct g_slicer *gsp;
129
130 g_slice_dumpconf(sb, indent, gp, cp, pp);
131 gsp = gp->softc;
132 mp = gsp->softc;
133 if (pp != NULL) {
134 sbuf_printf(sb, "%s<type>%d</type>\n",
135 indent, mp->type[pp->index]);
136 }
137}
138
139
140static struct dos_partition historical_bogus_partition_table[NDOSPART] = {
141 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
142 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
143 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
144 { 0x80, 0, 1, 0, DOSPTYP_386BSD, 255, 255, 255, 0, 50000, },
145};
146static struct dos_partition historical_bogus_partition_table_fixed[NDOSPART] = {
147 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
148 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
149 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
150 { 0x80, 0, 1, 0, DOSPTYP_386BSD, 254, 255, 255, 0, 50000, },
151};
152
153static void
154g_mbr_print(int i __unused, struct dos_partition *dp __unused)
155{
156
157#if 0
158 g_hexdump(dp, sizeof(dp[0]));
159 printf("[%d] f:%02x typ:%d", i, dp->dp_flag, dp->dp_typ);
160 printf(" s(CHS):%d/%d/%d", dp->dp_scyl, dp->dp_shd, dp->dp_ssect);
161 printf(" e(CHS):%d/%d/%d", dp->dp_ecyl, dp->dp_ehd, dp->dp_esect);
162 printf(" s:%d l:%d\n", dp->dp_start, dp->dp_size);
163#endif
164}
165
166static struct g_geom *
167g_mbr_taste(struct g_class *mp, struct g_provider *pp, int insist)
168{
169 struct g_geom *gp;
170 struct g_consumer *cp;
171 struct g_provider *pp2;
| 36 */
37
38#include <sys/param.h>
39#ifndef _KERNEL
40#include <stdio.h>
41#include <string.h>
42#include <signal.h>
43#include <sys/param.h>
44#include <stdlib.h>
45#include <err.h>
46#else
47#include <sys/systm.h>
48#include <sys/kernel.h>
49#include <sys/malloc.h>
50#include <sys/bio.h>
51#include <sys/lock.h>
52#include <sys/mutex.h>
53#endif
54
55#include <sys/errno.h>
56#include <sys/disklabel.h>
57#include <sys/sbuf.h>
58#include <geom/geom.h>
59#include <geom/geom_slice.h>
60
61#define MBR_CLASS_NAME "MBR-class"
62#define MBREXT_CLASS_NAME "MBREXT-class"
63
64static void
65g_dec_dos_partition(u_char *ptr, struct dos_partition *d)
66{
67
68 d->dp_flag = ptr[0];
69 d->dp_shd = ptr[1];
70 d->dp_ssect = ptr[2];
71 d->dp_scyl = ptr[3];
72 d->dp_typ = ptr[4];
73 d->dp_ehd = ptr[5];
74 d->dp_esect = ptr[6];
75 d->dp_ecyl = ptr[7];
76 d->dp_start = g_dec_le4(ptr + 8);
77 d->dp_size = g_dec_le4(ptr + 12);
78}
79
80#if 0
81static void
82g_enc_dos_partition(u_char *ptr, struct dos_partition *d)
83{
84
85 ptr[0] = d->dp_flag;
86 ptr[1] = d->dp_shd;
87 ptr[2] = d->dp_ssect;
88 ptr[3] = d->dp_scyl;
89 ptr[4] = d->dp_typ;
90 ptr[5] = d->dp_ehd;
91 ptr[6] = d->dp_esect;
92 ptr[7] = d->dp_ecyl;
93 g_enc_le4(ptr + 8, d->dp_start);
94 g_enc_le4(ptr + 12, d->dp_size);
95}
96#endif
97
98struct g_mbr_softc {
99 int type [NDOSPART];
100 struct dos_partition dospart[NDOSPART];
101};
102
103static int
104g_mbr_start(struct bio *bp)
105{
106 struct g_provider *pp;
107 struct g_geom *gp;
108 struct g_mbr_softc *mp;
109 struct g_slicer *gsp;
110 int index;
111
112 pp = bp->bio_to;
113 index = pp->index;
114 gp = pp->geom;
115 gsp = gp->softc;
116 mp = gsp->softc;
117 if (bp->bio_cmd == BIO_GETATTR) {
118 if (g_haveattr_int(bp, "MBR::type", mp->type[index]))
119 return (1);
120 }
121 return (0);
122}
123
124static void
125g_mbr_dumpconf(struct sbuf *sb, char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp)
126{
127 struct g_mbr_softc *mp;
128 struct g_slicer *gsp;
129
130 g_slice_dumpconf(sb, indent, gp, cp, pp);
131 gsp = gp->softc;
132 mp = gsp->softc;
133 if (pp != NULL) {
134 sbuf_printf(sb, "%s<type>%d</type>\n",
135 indent, mp->type[pp->index]);
136 }
137}
138
139
140static struct dos_partition historical_bogus_partition_table[NDOSPART] = {
141 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
142 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
143 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
144 { 0x80, 0, 1, 0, DOSPTYP_386BSD, 255, 255, 255, 0, 50000, },
145};
146static struct dos_partition historical_bogus_partition_table_fixed[NDOSPART] = {
147 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
148 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
149 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
150 { 0x80, 0, 1, 0, DOSPTYP_386BSD, 254, 255, 255, 0, 50000, },
151};
152
153static void
154g_mbr_print(int i __unused, struct dos_partition *dp __unused)
155{
156
157#if 0
158 g_hexdump(dp, sizeof(dp[0]));
159 printf("[%d] f:%02x typ:%d", i, dp->dp_flag, dp->dp_typ);
160 printf(" s(CHS):%d/%d/%d", dp->dp_scyl, dp->dp_shd, dp->dp_ssect);
161 printf(" e(CHS):%d/%d/%d", dp->dp_ecyl, dp->dp_ehd, dp->dp_esect);
162 printf(" s:%d l:%d\n", dp->dp_start, dp->dp_size);
163#endif
164}
165
166static struct g_geom *
167g_mbr_taste(struct g_class *mp, struct g_provider *pp, int insist)
168{
169 struct g_geom *gp;
170 struct g_consumer *cp;
171 struct g_provider *pp2;
|
172 int error, i, j, npart;
| 172 int error, i, npart;
|
173 struct dos_partition dp[NDOSPART];
174 struct g_mbr_softc *ms;
| 173 struct dos_partition dp[NDOSPART];
174 struct g_mbr_softc *ms;
|
| 175 struct g_slicer *gsp;
176 u_int fwsectors, sectorsize;
|
175 u_char *buf;
176
| 177 u_char *buf;
178
|
177 if (sizeof(struct dos_partition) != 16) {
178 printf("WARNING: struct dos_partition compiles to %d bytes, should be 16.\n",
179 (int)sizeof(struct dos_partition));
180 return (NULL);
181 }
| |
182 g_trace(G_T_TOPOLOGY, "mbr_taste(%s,%s)", mp->name, pp->name);
183 g_topology_assert();
184 gp = g_slice_new(mp, NDOSPART, pp, &cp, &ms, sizeof *ms, g_mbr_start);
185 if (gp == NULL)
186 return (NULL);
| 179 g_trace(G_T_TOPOLOGY, "mbr_taste(%s,%s)", mp->name, pp->name);
180 g_topology_assert();
181 gp = g_slice_new(mp, NDOSPART, pp, &cp, &ms, sizeof *ms, g_mbr_start);
182 if (gp == NULL)
183 return (NULL);
|
| 184 gsp = gp->softc;
|
187 g_topology_unlock();
188 gp->dumpconf = g_mbr_dumpconf;
189 npart = 0;
190 while (1) { /* a trick to allow us to use break */
191 if (gp->rank != 2 && insist == 0)
192 break;
| 185 g_topology_unlock();
186 gp->dumpconf = g_mbr_dumpconf;
187 npart = 0;
188 while (1) { /* a trick to allow us to use break */
189 if (gp->rank != 2 && insist == 0)
190 break;
|
193 j = sizeof i;
194 /* For now we only support 512 bytes sectors */
195 error = g_io_getattr("GEOM::sectorsize", cp, &j, &i);
196 if (!error && i != 512)
| 191 error = g_getattr("GEOM::fwsectors", cp, &fwsectors);
192 if (error)
193 fwsectors = 17;
194 error = g_getattr("GEOM::sectorsize", cp, §orsize);
195 if (error)
|
197 break;
| 196 break;
|
198 buf = g_read_data(cp, 0, 512, &error);
| 197 if (!error && sectorsize != 512)
198 break;
199 gsp->frontstuff = sectorsize * fwsectors;
200 buf = g_read_data(cp, 0, sectorsize, &error);
|
199 if (buf == NULL || error != 0)
200 break;
201 if (buf[0x1fe] != 0x55 && buf[0x1ff] != 0xaa) {
202 g_free(buf);
203 break;
204 }
205 for (i = 0; i < NDOSPART; i++)
206 g_dec_dos_partition(
207 buf + DOSPARTOFF + i * sizeof(struct dos_partition),
208 dp + i);
209 g_free(buf);
210 if (bcmp(dp, historical_bogus_partition_table,
211 sizeof historical_bogus_partition_table) == 0)
212 break;
213 if (bcmp(dp, historical_bogus_partition_table_fixed,
214 sizeof historical_bogus_partition_table_fixed) == 0)
215 break;
216 npart = 0;
217 for (i = 0; i < NDOSPART; i++) {
218 if (dp[i].dp_flag != 0 && dp[i].dp_flag != 0x80)
219 continue;
220 if (dp[i].dp_size == 0)
221 continue;
222 g_mbr_print(i, dp + i);
223 npart++;
224 ms->type[i] = dp[i].dp_typ;
225 pp2 = g_slice_addslice(gp, i,
226 ((off_t)dp[i].dp_start) << 9ULL,
227 ((off_t)dp[i].dp_size) << 9ULL,
228 "%ss%d", gp->name, i + 1);
229 }
230 break;
231 }
232 g_topology_lock();
233 error = g_access_rel(cp, -1, 0, 0);
234 if (npart > 0) {
235 LIST_FOREACH(pp, &gp->provider, provider)
236 g_error_provider(pp, 0);
237 return (gp);
238 }
239 g_std_spoiled(cp);
240 return (NULL);
241}
242
243
244static struct g_class g_mbr_class = {
245 MBR_CLASS_NAME,
246 g_mbr_taste,
247 NULL,
248 G_CLASS_INITSTUFF
249};
250
251DECLARE_GEOM_CLASS(g_mbr_class, g_mbr);
252
253#define NDOSEXTPART 32
254struct g_mbrext_softc {
255 int type [NDOSEXTPART];
256};
257
258static int
259g_mbrext_start(struct bio *bp)
260{
261 struct g_provider *pp;
262 struct g_geom *gp;
263 struct g_mbrext_softc *mp;
264 struct g_slicer *gsp;
265 int index;
266
267 pp = bp->bio_to;
268 index = pp->index;
269 gp = pp->geom;
270 gsp = gp->softc;
271 mp = gsp->softc;
272 if (bp->bio_cmd == BIO_GETATTR) {
273 if (g_haveattr_int(bp, "MBR::type", mp->type[index]))
274 return (1);
275 }
276 return (0);
277}
278
279static void
280g_mbrext_dumpconf(struct sbuf *sb, char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp)
281{
282 struct g_mbrext_softc *mp;
283 struct g_slicer *gsp;
284
285 g_slice_dumpconf(sb, indent, gp, cp, pp);
286 gsp = gp->softc;
287 mp = gsp->softc;
288 if (pp != NULL) {
289 sbuf_printf(sb, "%s<type>%d</type>\n",
290 indent, mp->type[pp->index]);
291 }
292}
293
294static void
295g_mbrext_print(int i, struct dos_partition *dp)
296{
297 g_hexdump(dp, sizeof(dp[0]));
298 printf("[%d] f:%02x typ:%d", i, dp->dp_flag, dp->dp_typ);
299 printf(" s(CHS):%d/%d/%d", dp->dp_scyl, dp->dp_shd, dp->dp_ssect);
300 printf(" e(CHS):%d/%d/%d", dp->dp_ecyl, dp->dp_ehd, dp->dp_esect);
301 printf(" s:%d l:%d\n", dp->dp_start, dp->dp_size);
302}
303
304static struct g_geom *
305g_mbrext_taste(struct g_class *mp, struct g_provider *pp, int insist __unused)
306{
307 struct g_geom *gp;
308 struct g_consumer *cp;
309 struct g_provider *pp2;
| 201 if (buf == NULL || error != 0)
202 break;
203 if (buf[0x1fe] != 0x55 && buf[0x1ff] != 0xaa) {
204 g_free(buf);
205 break;
206 }
207 for (i = 0; i < NDOSPART; i++)
208 g_dec_dos_partition(
209 buf + DOSPARTOFF + i * sizeof(struct dos_partition),
210 dp + i);
211 g_free(buf);
212 if (bcmp(dp, historical_bogus_partition_table,
213 sizeof historical_bogus_partition_table) == 0)
214 break;
215 if (bcmp(dp, historical_bogus_partition_table_fixed,
216 sizeof historical_bogus_partition_table_fixed) == 0)
217 break;
218 npart = 0;
219 for (i = 0; i < NDOSPART; i++) {
220 if (dp[i].dp_flag != 0 && dp[i].dp_flag != 0x80)
221 continue;
222 if (dp[i].dp_size == 0)
223 continue;
224 g_mbr_print(i, dp + i);
225 npart++;
226 ms->type[i] = dp[i].dp_typ;
227 pp2 = g_slice_addslice(gp, i,
228 ((off_t)dp[i].dp_start) << 9ULL,
229 ((off_t)dp[i].dp_size) << 9ULL,
230 "%ss%d", gp->name, i + 1);
231 }
232 break;
233 }
234 g_topology_lock();
235 error = g_access_rel(cp, -1, 0, 0);
236 if (npart > 0) {
237 LIST_FOREACH(pp, &gp->provider, provider)
238 g_error_provider(pp, 0);
239 return (gp);
240 }
241 g_std_spoiled(cp);
242 return (NULL);
243}
244
245
246static struct g_class g_mbr_class = {
247 MBR_CLASS_NAME,
248 g_mbr_taste,
249 NULL,
250 G_CLASS_INITSTUFF
251};
252
253DECLARE_GEOM_CLASS(g_mbr_class, g_mbr);
254
255#define NDOSEXTPART 32
256struct g_mbrext_softc {
257 int type [NDOSEXTPART];
258};
259
260static int
261g_mbrext_start(struct bio *bp)
262{
263 struct g_provider *pp;
264 struct g_geom *gp;
265 struct g_mbrext_softc *mp;
266 struct g_slicer *gsp;
267 int index;
268
269 pp = bp->bio_to;
270 index = pp->index;
271 gp = pp->geom;
272 gsp = gp->softc;
273 mp = gsp->softc;
274 if (bp->bio_cmd == BIO_GETATTR) {
275 if (g_haveattr_int(bp, "MBR::type", mp->type[index]))
276 return (1);
277 }
278 return (0);
279}
280
281static void
282g_mbrext_dumpconf(struct sbuf *sb, char *indent, struct g_geom *gp, struct g_consumer *cp __unused, struct g_provider *pp)
283{
284 struct g_mbrext_softc *mp;
285 struct g_slicer *gsp;
286
287 g_slice_dumpconf(sb, indent, gp, cp, pp);
288 gsp = gp->softc;
289 mp = gsp->softc;
290 if (pp != NULL) {
291 sbuf_printf(sb, "%s<type>%d</type>\n",
292 indent, mp->type[pp->index]);
293 }
294}
295
296static void
297g_mbrext_print(int i, struct dos_partition *dp)
298{
299 g_hexdump(dp, sizeof(dp[0]));
300 printf("[%d] f:%02x typ:%d", i, dp->dp_flag, dp->dp_typ);
301 printf(" s(CHS):%d/%d/%d", dp->dp_scyl, dp->dp_shd, dp->dp_ssect);
302 printf(" e(CHS):%d/%d/%d", dp->dp_ecyl, dp->dp_ehd, dp->dp_esect);
303 printf(" s:%d l:%d\n", dp->dp_start, dp->dp_size);
304}
305
306static struct g_geom *
307g_mbrext_taste(struct g_class *mp, struct g_provider *pp, int insist __unused)
308{
309 struct g_geom *gp;
310 struct g_consumer *cp;
311 struct g_provider *pp2;
|
310 int error, i, j, slice;
| 312 int error, i, slice;
|
311 struct g_mbrext_softc *ms;
312 off_t off;
313 u_char *buf;
314 struct dos_partition dp[4];
| 313 struct g_mbrext_softc *ms;
314 off_t off;
315 u_char *buf;
316 struct dos_partition dp[4];
|
| 317 u_int fwsectors, sectorsize;
318 struct g_slicer *gsp;
|
315
316 g_trace(G_T_TOPOLOGY, "g_mbrext_taste(%s,%s)", mp->name, pp->name);
317 g_topology_assert();
318 if (strcmp(pp->geom->class->name, MBR_CLASS_NAME))
319 return (NULL);
320 gp = g_slice_new(mp, NDOSEXTPART, pp, &cp, &ms, sizeof *ms, g_mbrext_start);
321 if (gp == NULL)
322 return (NULL);
| 319
320 g_trace(G_T_TOPOLOGY, "g_mbrext_taste(%s,%s)", mp->name, pp->name);
321 g_topology_assert();
322 if (strcmp(pp->geom->class->name, MBR_CLASS_NAME))
323 return (NULL);
324 gp = g_slice_new(mp, NDOSEXTPART, pp, &cp, &ms, sizeof *ms, g_mbrext_start);
325 if (gp == NULL)
326 return (NULL);
|
| 327 gsp = gp->softc;
|
323 g_topology_unlock();
324 gp->dumpconf = g_mbrext_dumpconf;
325 off = 0;
326 slice = 0;
327 while (1) { /* a trick to allow us to use break */
| 328 g_topology_unlock();
329 gp->dumpconf = g_mbrext_dumpconf;
330 off = 0;
331 slice = 0;
332 while (1) { /* a trick to allow us to use break */
|
328 j = sizeof i;
329 error = g_io_getattr("MBR::type", cp, &j, &i);
| 333 error = g_getattr("MBR::type", cp, &i);
|
330 if (error || i != DOSPTYP_EXT)
331 break;
| 334 if (error || i != DOSPTYP_EXT)
335 break;
|
| 336 error = g_getattr("GEOM::fwsectors", cp, &fwsectors);
337 if (error)
338 fwsectors = 17;
339 error = g_getattr("GEOM::sectorsize", cp, §orsize);
340 if (error)
341 break;
342 if (!error && sectorsize != 512)
343 break;
344 gsp->frontstuff = sectorsize * fwsectors;
|
332 for (;;) {
| 345 for (;;) {
|
333 buf = g_read_data(cp, off, DEV_BSIZE, &error);
| 346 buf = g_read_data(cp, off, sectorsize, &error);
|
334 if (buf == NULL || error != 0)
335 break;
336 if (buf[0x1fe] != 0x55 && buf[0x1ff] != 0xaa)
337 break;
338 for (i = 0; i < NDOSPART; i++)
339 g_dec_dos_partition(
340 buf + DOSPARTOFF + i * sizeof(struct dos_partition),
341 dp + i);
342 g_free(buf);
343 g_mbrext_print(0, dp);
344 g_mbrext_print(1, dp + 1);
345 if (dp[0].dp_flag == 0 && dp[0].dp_size != 0) {
346 pp2 = g_slice_addslice(gp, slice,
347 (((off_t)dp[0].dp_start) << 9ULL) + off,
348 ((off_t)dp[0].dp_size) << 9ULL,
349 "%*.*s%d",
350 strlen(gp->name) - 1,
351 strlen(gp->name) - 1,
352 gp->name,
353 slice + 5);
354 ms->type[slice] = dp[0].dp_typ;
355 slice++;
356 g_error_provider(pp2, 0);
357 }
358 if (dp[1].dp_flag != 0)
359 break;
360 if (dp[1].dp_typ != DOSPTYP_EXT)
361 break;
362 if (dp[1].dp_size == 0)
363 break;
364 off = ((off_t)dp[1].dp_start) << 9ULL;
365 }
366 break;
367 }
368 g_topology_lock();
369 error = g_access_rel(cp, -1, 0, 0);
370 if (slice > 0)
371 return (gp);
372
373 g_topology_assert();
374 g_std_spoiled(cp);
375 g_topology_assert();
376 return (NULL);
377}
378
379
380static struct g_class g_mbrext_class = {
381 MBREXT_CLASS_NAME,
382 g_mbrext_taste,
383 NULL,
384 G_CLASS_INITSTUFF
385};
386
387DECLARE_GEOM_CLASS(g_mbrext_class, g_mbrext);
| 347 if (buf == NULL || error != 0)
348 break;
349 if (buf[0x1fe] != 0x55 && buf[0x1ff] != 0xaa)
350 break;
351 for (i = 0; i < NDOSPART; i++)
352 g_dec_dos_partition(
353 buf + DOSPARTOFF + i * sizeof(struct dos_partition),
354 dp + i);
355 g_free(buf);
356 g_mbrext_print(0, dp);
357 g_mbrext_print(1, dp + 1);
358 if (dp[0].dp_flag == 0 && dp[0].dp_size != 0) {
359 pp2 = g_slice_addslice(gp, slice,
360 (((off_t)dp[0].dp_start) << 9ULL) + off,
361 ((off_t)dp[0].dp_size) << 9ULL,
362 "%*.*s%d",
363 strlen(gp->name) - 1,
364 strlen(gp->name) - 1,
365 gp->name,
366 slice + 5);
367 ms->type[slice] = dp[0].dp_typ;
368 slice++;
369 g_error_provider(pp2, 0);
370 }
371 if (dp[1].dp_flag != 0)
372 break;
373 if (dp[1].dp_typ != DOSPTYP_EXT)
374 break;
375 if (dp[1].dp_size == 0)
376 break;
377 off = ((off_t)dp[1].dp_start) << 9ULL;
378 }
379 break;
380 }
381 g_topology_lock();
382 error = g_access_rel(cp, -1, 0, 0);
383 if (slice > 0)
384 return (gp);
385
386 g_topology_assert();
387 g_std_spoiled(cp);
388 g_topology_assert();
389 return (NULL);
390}
391
392
393static struct g_class g_mbrext_class = {
394 MBREXT_CLASS_NAME,
395 g_mbrext_taste,
396 NULL,
397 G_CLASS_INITSTUFF
398};
399
400DECLARE_GEOM_CLASS(g_mbrext_class, g_mbrext);
|