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

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26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/sys/geom/geom_pc98.c 119660 2003-09-01 20:45:32Z phk $");
35
36#include <sys/param.h>
37#include <sys/endian.h>
38#include <sys/systm.h>
39#include <sys/kernel.h>
40#include <sys/malloc.h>
41#include <sys/bio.h>
42#include <sys/lock.h>

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129 ms->sectorsize, "%ss%d", gp->name, i + 1);
130 }
131
132 bcopy(sec, ms->sec, sizeof (ms->sec));
133
134 return (0);
135}
136
137static int
138g_pc98_ioctl(struct g_provider *pp, u_long cmd, void *data, struct thread *td)
139{
140 struct g_geom *gp;
141 struct g_pc98_softc *ms;
142 struct g_slicer *gsp;
143 struct g_consumer *cp;
144 int error;
145
146 gp = pp->geom;
147 gsp = gp->softc;
148 ms = gsp->softc;
149
150 switch(cmd) {
151 case DIOCSPC98: {
152 DROP_GIANT();
153 g_topology_lock();
154 /* Validate and modify our slicer instance to match. */
155 error = g_pc98_modify(gp, ms, data);
156 cp = LIST_FIRST(&gp->consumer);
157 error = g_write_data(cp, 0, data, 8192);
158 g_topology_unlock();
159 PICKUP_GIANT();
160 return(error);
161 }
162 default:
163 return (ENOIOCTL);
164 }
165}
166
167static int
168g_pc98_start(struct bio *bp)
169{
170 struct g_provider *pp;
171 struct g_geom *gp;
172 struct g_pc98_softc *mp;
173 struct g_slicer *gsp;
174 int idx;
175
176 pp = bp->bio_to;
177 idx = pp->index;
178 gp = pp->geom;
179 gsp = gp->softc;
180 mp = gsp->softc;
181 if (bp->bio_cmd == BIO_GETATTR) {
182 if (g_handleattr_int(bp, "PC98::type", mp->type[idx]))
183 return (1);
184 if (g_handleattr_off_t(bp, "PC98::offset",
185 gsp->slices[idx].offset))
186 return (1);
187 }
188
189 return (0);
190}
191
192static void
193g_pc98_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp,
194 struct g_consumer *cp __unused, struct g_provider *pp)
195{
196 struct g_pc98_softc *mp;
197 struct g_slicer *gsp;

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234 if (flags == G_TF_NORMAL &&
235 !strcmp(pp->geom->class->name, PC98_CLASS_NAME))
236 return (NULL);
237 gp = g_slice_new(mp, NDOSPART, pp, &cp, &ms, sizeof *ms, g_pc98_start);
238 if (gp == NULL)
239 return (NULL);
240 g_topology_unlock();
241 gp->dumpconf = g_pc98_dumpconf;
242 gp->ioctl = g_pc98_ioctl;
243 do {
244 if (gp->rank != 2 && flags == G_TF_NORMAL)
245 break;
246 error = g_getattr("GEOM::fwsectors", cp, &fwsectors);
247 if (error || fwsectors == 0) {
248 fwsectors = 17;
249 if (bootverbose)
250 printf("g_pc98_taste: guessing %d sectors\n",

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