1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include <meta.h>
31*0Sstevel@tonic-gate #include "meta_repartition.h"
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate * FUNCTION: meta_replicaslice()
37*0Sstevel@tonic-gate * INPUT: dnp - the name of the drive to check
38*0Sstevel@tonic-gate * OUTPUT: slicep - pointer to slice number
39*0Sstevel@tonic-gate * ep - pointer to an md_error_t structure in which
40*0Sstevel@tonic-gate * to return errors to the caller
41*0Sstevel@tonic-gate * RETURNS: int - 0 - value pointed to by slicep is valid
42*0Sstevel@tonic-gate * -1 - otherwise
43*0Sstevel@tonic-gate *
44*0Sstevel@tonic-gate * PURPOSE: Determine which slice of the specified drive to
45*0Sstevel@tonic-gate * reserve, presumably for metadb replica usage.
46*0Sstevel@tonic-gate *
47*0Sstevel@tonic-gate * NOTE: If slicep is NULL, the return code will indicate
48*0Sstevel@tonic-gate * whether or not the slice number could be determined
49*0Sstevel@tonic-gate */
50*0Sstevel@tonic-gate int
meta_replicaslice(mddrivename_t * dnp,uint_t * slicep,md_error_t * ep)51*0Sstevel@tonic-gate meta_replicaslice(
52*0Sstevel@tonic-gate mddrivename_t *dnp,
53*0Sstevel@tonic-gate uint_t *slicep,
54*0Sstevel@tonic-gate md_error_t *ep
55*0Sstevel@tonic-gate )
56*0Sstevel@tonic-gate {
57*0Sstevel@tonic-gate int err = 0;
58*0Sstevel@tonic-gate int ioctl_return;
59*0Sstevel@tonic-gate int fd;
60*0Sstevel@tonic-gate char *rname;
61*0Sstevel@tonic-gate struct dk_geom geom;
62*0Sstevel@tonic-gate
63*0Sstevel@tonic-gate rname = dnp->rname;
64*0Sstevel@tonic-gate if ((fd = open(rname, (O_RDONLY|O_NDELAY), 0)) < 0) {
65*0Sstevel@tonic-gate char *n;
66*0Sstevel@tonic-gate int open_errno;
67*0Sstevel@tonic-gate size_t len;
68*0Sstevel@tonic-gate
69*0Sstevel@tonic-gate if (errno != ENOENT)
70*0Sstevel@tonic-gate return (mdsyserror(ep, errno, rname));
71*0Sstevel@tonic-gate
72*0Sstevel@tonic-gate len = strlen(rname) + 3;
73*0Sstevel@tonic-gate n = Zalloc(len);
74*0Sstevel@tonic-gate (void) snprintf(n, len, "%ss0", rname);
75*0Sstevel@tonic-gate fd = open(n, (O_RDONLY|O_NDELAY), 0);
76*0Sstevel@tonic-gate open_errno = errno;
77*0Sstevel@tonic-gate Free(n);
78*0Sstevel@tonic-gate if (fd < 0) {
79*0Sstevel@tonic-gate return (mdsyserror(ep, open_errno, rname));
80*0Sstevel@tonic-gate }
81*0Sstevel@tonic-gate }
82*0Sstevel@tonic-gate
83*0Sstevel@tonic-gate /*
84*0Sstevel@tonic-gate * if our drivenamep points to a device not supporting
85*0Sstevel@tonic-gate * DKIOCGGEOM, we have an EFI label.
86*0Sstevel@tonic-gate */
87*0Sstevel@tonic-gate errno = 0;
88*0Sstevel@tonic-gate ioctl_return = ioctl(fd, DKIOCGGEOM, &geom);
89*0Sstevel@tonic-gate err = errno;
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate (void) close(fd);
92*0Sstevel@tonic-gate
93*0Sstevel@tonic-gate /*
94*0Sstevel@tonic-gate * If the DKIOCGGEOM ioctl succeeded, then the device has a
95*0Sstevel@tonic-gate * VTOC style label. In this case, we use slice 7.
96*0Sstevel@tonic-gate */
97*0Sstevel@tonic-gate if (ioctl_return == 0) {
98*0Sstevel@tonic-gate if (slicep != NULL) {
99*0Sstevel@tonic-gate *slicep = MD_SLICE7;
100*0Sstevel@tonic-gate }
101*0Sstevel@tonic-gate return (0);
102*0Sstevel@tonic-gate }
103*0Sstevel@tonic-gate
104*0Sstevel@tonic-gate /*
105*0Sstevel@tonic-gate * ENOTSUP indicates an EFI style label, in which case slice 7
106*0Sstevel@tonic-gate * cannot be used because its minor number is reserved. In
107*0Sstevel@tonic-gate * this case, use slice 6.
108*0Sstevel@tonic-gate */
109*0Sstevel@tonic-gate if (err == ENOTSUP) {
110*0Sstevel@tonic-gate if (slicep != NULL) {
111*0Sstevel@tonic-gate *slicep = MD_SLICE6;
112*0Sstevel@tonic-gate }
113*0Sstevel@tonic-gate return (0);
114*0Sstevel@tonic-gate }
115*0Sstevel@tonic-gate
116*0Sstevel@tonic-gate /*
117*0Sstevel@tonic-gate * Those are the only two cases we know how to deal with;
118*0Sstevel@tonic-gate * either the drivenamep didn't point to a disk, or the ioctl
119*0Sstevel@tonic-gate * failed for some other reason.
120*0Sstevel@tonic-gate */
121*0Sstevel@tonic-gate if (err == ENOTTY) {
122*0Sstevel@tonic-gate return (mddeverror(ep, MDE_NOT_DISK, NODEV, rname));
123*0Sstevel@tonic-gate }
124*0Sstevel@tonic-gate
125*0Sstevel@tonic-gate return (mdsyserror(ep, err, rname));
126*0Sstevel@tonic-gate }
127*0Sstevel@tonic-gate
128*0Sstevel@tonic-gate
129*0Sstevel@tonic-gate
130*0Sstevel@tonic-gate /*
131*0Sstevel@tonic-gate * FUNCTION: meta_repartition_drive()
132*0Sstevel@tonic-gate * INPUT: sp - the set name for the device to check
133*0Sstevel@tonic-gate * dnp - the name of the drive to partition
134*0Sstevel@tonic-gate * options - options (see NOTES)
135*0Sstevel@tonic-gate * OUTPUT: vtocp - pointer to an mdvtoc_t structure in which
136*0Sstevel@tonic-gate * to return the new VTOC to the caller
137*0Sstevel@tonic-gate * ep - pointer to an md_error_t structure in which
138*0Sstevel@tonic-gate * to return errors to the caller
139*0Sstevel@tonic-gate * RETURNS: int - 0 - drive was or can be repartitioned
140*0Sstevel@tonic-gate * -1 - drive could not or should not be
141*0Sstevel@tonic-gate * repartitioned
142*0Sstevel@tonic-gate * PURPOSE: Repartition a disk for use in a disk set or in order
143*0Sstevel@tonic-gate * to create soft partitions on it. Alternatively,
144*0Sstevel@tonic-gate * return the VTOC that the disk would have if it were
145*0Sstevel@tonic-gate * repartitioned without actually repartitioning it.
146*0Sstevel@tonic-gate *
147*0Sstevel@tonic-gate * NOTES:
148*0Sstevel@tonic-gate *
149*0Sstevel@tonic-gate * This routine will repartition a drive to make it suitable for
150*0Sstevel@tonic-gate * inclusion in a diskset. Specifically, it will create a
151*0Sstevel@tonic-gate * proposed VTOC that specifies a replica slice that begins at the
152*0Sstevel@tonic-gate * first valid lba, is large enough to hold a label and a metadb
153*0Sstevel@tonic-gate * replica, does not overlap any other slices, and is unmountable.
154*0Sstevel@tonic-gate * If the current replica slice already satisfies those criteria,
155*0Sstevel@tonic-gate * the routine will neither create a proposed VTOC nor repartition
156*0Sstevel@tonic-gate * the drive unless the MD_REPART_FORCE flag is passed into the
157*0Sstevel@tonic-gate * routine in the options argument. If the routine does create a
158*0Sstevel@tonic-gate * proposed VTOC, it will return the proposed VTOC in *vtocp if
159*0Sstevel@tonic-gate * vtocp isn't NULL.
160*0Sstevel@tonic-gate *
161*0Sstevel@tonic-gate * The slice to be used as the replica slice is determined by the
162*0Sstevel@tonic-gate * function meta_replicaslice().
163*0Sstevel@tonic-gate *
164*0Sstevel@tonic-gate * If the replica slice does not satisfy the above criteria or the
165*0Sstevel@tonic-gate * MD_REPART_FORCE flag is set, the proposed VTOC will specify a
166*0Sstevel@tonic-gate * replica slice that satisfies the above criteria, a slice zero
167*0Sstevel@tonic-gate * that contains the remaining space on the disk, and no other
168*0Sstevel@tonic-gate * slices. If that repartitioning would cause the replica slice
169*0Sstevel@tonic-gate * to move or shrink, and the MD_REPART_LEAVE_REP option is set,
170*0Sstevel@tonic-gate * the routine will return -1 without creating or returning a
171*0Sstevel@tonic-gate * proposed vtoc, and without repartitioning the disk. Otherwise
172*0Sstevel@tonic-gate * the routine will repartition the disk unless the
173*0Sstevel@tonic-gate * MD_REPART_DONT_LABEL flag is set in the options argument.
174*0Sstevel@tonic-gate *
175*0Sstevel@tonic-gate * If the MD_REPART_DONT_LABEL flag is set in the options argument,
176*0Sstevel@tonic-gate * but the routine would otherwise repartition the drive, the
177*0Sstevel@tonic-gate * routine won't repartition the drive, but will create a proposed
178*0Sstevel@tonic-gate * VTOC that satisfies the criteria defined above and return it
179*0Sstevel@tonic-gate * it in *vtocp if vtocp isn't NULL, The MD_REPART_DONT_LABEL
180*0Sstevel@tonic-gate * option allows calling routines to determine what the contents of
181*0Sstevel@tonic-gate * the drive's VTOC would be if the drive were repartitioned without
182*0Sstevel@tonic-gate * actually repartitioning the drive.
183*0Sstevel@tonic-gate */
184*0Sstevel@tonic-gate int
meta_repartition_drive(mdsetname_t * sp,mddrivename_t * dnp,int options,mdvtoc_t * vtocp,md_error_t * ep)185*0Sstevel@tonic-gate meta_repartition_drive(
186*0Sstevel@tonic-gate mdsetname_t *sp,
187*0Sstevel@tonic-gate mddrivename_t *dnp,
188*0Sstevel@tonic-gate int options,
189*0Sstevel@tonic-gate mdvtoc_t *vtocp,
190*0Sstevel@tonic-gate md_error_t *ep
191*0Sstevel@tonic-gate )
192*0Sstevel@tonic-gate {
193*0Sstevel@tonic-gate uint_t replicaslice;
194*0Sstevel@tonic-gate diskaddr_t first_lba, last_lba;
195*0Sstevel@tonic-gate int round_sizes = 1;
196*0Sstevel@tonic-gate unsigned long long cylsize;
197*0Sstevel@tonic-gate unsigned long long drvsize;
198*0Sstevel@tonic-gate int i;
199*0Sstevel@tonic-gate mdgeom_t *mdgp;
200*0Sstevel@tonic-gate mdvtoc_t *mdvp;
201*0Sstevel@tonic-gate mdvtoc_t proposed_vtoc;
202*0Sstevel@tonic-gate uint_t reservedcyl;
203*0Sstevel@tonic-gate ushort_t resflag;
204*0Sstevel@tonic-gate mdname_t *resnp;
205*0Sstevel@tonic-gate unsigned long long ressize;
206*0Sstevel@tonic-gate md_set_desc *sd;
207*0Sstevel@tonic-gate daddr_t dbsize;
208*0Sstevel@tonic-gate diskaddr_t replica_start;
209*0Sstevel@tonic-gate diskaddr_t replica_size;
210*0Sstevel@tonic-gate diskaddr_t replica_end;
211*0Sstevel@tonic-gate diskaddr_t data_start;
212*0Sstevel@tonic-gate diskaddr_t data_size;
213*0Sstevel@tonic-gate
214*0Sstevel@tonic-gate if (meta_replicaslice(dnp, &replicaslice, ep) != 0) {
215*0Sstevel@tonic-gate return (-1);
216*0Sstevel@tonic-gate }
217*0Sstevel@tonic-gate
218*0Sstevel@tonic-gate /* Don't round for EFI disks */
219*0Sstevel@tonic-gate if (replicaslice == MD_SLICE6)
220*0Sstevel@tonic-gate round_sizes = 0;
221*0Sstevel@tonic-gate
222*0Sstevel@tonic-gate /*
223*0Sstevel@tonic-gate * We took as argument a drive name pointer, but we need a
224*0Sstevel@tonic-gate * slice name pointer to retrieve vtoc information. So get
225*0Sstevel@tonic-gate * the name pointer for slice zero first, then use it to get
226*0Sstevel@tonic-gate * the vtoc info for the disk.
227*0Sstevel@tonic-gate */
228*0Sstevel@tonic-gate if ((resnp = metaslicename(dnp, MD_SLICE0, ep)) == NULL)
229*0Sstevel@tonic-gate return (-1);
230*0Sstevel@tonic-gate
231*0Sstevel@tonic-gate if ((mdvp = metagetvtoc(resnp, FALSE, NULL, ep)) == NULL)
232*0Sstevel@tonic-gate return (-1);
233*0Sstevel@tonic-gate
234*0Sstevel@tonic-gate /*
235*0Sstevel@tonic-gate * Determine the metadb size.
236*0Sstevel@tonic-gate */
237*0Sstevel@tonic-gate dbsize = MD_DBSIZE;
238*0Sstevel@tonic-gate if (!metaislocalset(sp)) {
239*0Sstevel@tonic-gate if ((sd = metaget_setdesc(sp, ep)) == NULL)
240*0Sstevel@tonic-gate return (-1);
241*0Sstevel@tonic-gate
242*0Sstevel@tonic-gate if (MD_MNSET_DESC(sd))
243*0Sstevel@tonic-gate dbsize = MD_MN_DBSIZE;
244*0Sstevel@tonic-gate }
245*0Sstevel@tonic-gate
246*0Sstevel@tonic-gate /* If we've got an efi disk, we better have lba info */
247*0Sstevel@tonic-gate first_lba = mdvp->first_lba;
248*0Sstevel@tonic-gate last_lba = mdvp->last_lba;
249*0Sstevel@tonic-gate ASSERT((round_sizes != 0) || (last_lba > 0));
250*0Sstevel@tonic-gate
251*0Sstevel@tonic-gate /*
252*0Sstevel@tonic-gate * At this point, ressize is used as a minimum value. Later
253*0Sstevel@tonic-gate * it will be rounded up to a cylinder boundary if
254*0Sstevel@tonic-gate * appropriate. ressize is in units of disk sectors.
255*0Sstevel@tonic-gate */
256*0Sstevel@tonic-gate ressize = dbsize + VTOC_SIZE;
257*0Sstevel@tonic-gate resflag = V_UNMNT;
258*0Sstevel@tonic-gate
259*0Sstevel@tonic-gate /*
260*0Sstevel@tonic-gate * If we're forcing the repartition, we can skip the replica
261*0Sstevel@tonic-gate * slice and overlap tests.
262*0Sstevel@tonic-gate */
263*0Sstevel@tonic-gate if (options & MD_REPART_FORCE) {
264*0Sstevel@tonic-gate goto do_repartition;
265*0Sstevel@tonic-gate }
266*0Sstevel@tonic-gate
267*0Sstevel@tonic-gate /*
268*0Sstevel@tonic-gate * Replica slice tests: it must begin at first_lba, be long
269*0Sstevel@tonic-gate * enough, have the right flags, and not overlap any other
270*0Sstevel@tonic-gate * slices. If any of these conditions is violated, we need to
271*0Sstevel@tonic-gate * repartition the disk.
272*0Sstevel@tonic-gate */
273*0Sstevel@tonic-gate if (mdvp->parts[replicaslice].start != first_lba) {
274*0Sstevel@tonic-gate goto do_repartition;
275*0Sstevel@tonic-gate }
276*0Sstevel@tonic-gate
277*0Sstevel@tonic-gate if (mdvp->parts[replicaslice].size < ressize) {
278*0Sstevel@tonic-gate goto do_repartition;
279*0Sstevel@tonic-gate }
280*0Sstevel@tonic-gate
281*0Sstevel@tonic-gate if (mdvp->parts[replicaslice].flag != resflag) {
282*0Sstevel@tonic-gate goto do_repartition;
283*0Sstevel@tonic-gate }
284*0Sstevel@tonic-gate
285*0Sstevel@tonic-gate /*
286*0Sstevel@tonic-gate * Check for overlap: this test should use the actual size of
287*0Sstevel@tonic-gate * the replica slice, as contained in the vtoc, and NOT the
288*0Sstevel@tonic-gate * minimum size calculated above.
289*0Sstevel@tonic-gate */
290*0Sstevel@tonic-gate replica_end = first_lba + mdvp->parts[replicaslice].size;
291*0Sstevel@tonic-gate for (i = 0; i < mdvp->nparts; i++) {
292*0Sstevel@tonic-gate if (i != replicaslice) {
293*0Sstevel@tonic-gate if ((mdvp->parts[i].size > 0) &&
294*0Sstevel@tonic-gate (mdvp->parts[i].start < replica_end)) {
295*0Sstevel@tonic-gate goto do_repartition;
296*0Sstevel@tonic-gate }
297*0Sstevel@tonic-gate }
298*0Sstevel@tonic-gate }
299*0Sstevel@tonic-gate
300*0Sstevel@tonic-gate /*
301*0Sstevel@tonic-gate * If we passed the above tests, then the disk is already
302*0Sstevel@tonic-gate * partitioned appropriately, and we're not being told to
303*0Sstevel@tonic-gate * force a change.
304*0Sstevel@tonic-gate */
305*0Sstevel@tonic-gate return (0);
306*0Sstevel@tonic-gate
307*0Sstevel@tonic-gate do_repartition:
308*0Sstevel@tonic-gate
309*0Sstevel@tonic-gate /* Retrieve disk geometry info and round to cylinder sizes */
310*0Sstevel@tonic-gate if (round_sizes != 0) {
311*0Sstevel@tonic-gate
312*0Sstevel@tonic-gate if ((mdgp = metagetgeom(resnp, ep)) == NULL)
313*0Sstevel@tonic-gate return (-1);
314*0Sstevel@tonic-gate
315*0Sstevel@tonic-gate /*
316*0Sstevel@tonic-gate * Both cylsize and drvsize are in units of disk
317*0Sstevel@tonic-gate * sectors.
318*0Sstevel@tonic-gate *
319*0Sstevel@tonic-gate * The intended results are of type unsigned long
320*0Sstevel@tonic-gate * long. Since each operand of the first
321*0Sstevel@tonic-gate * multiplication is of type unsigned int, we risk
322*0Sstevel@tonic-gate * overflow by multiplying and then converting the
323*0Sstevel@tonic-gate * result. Therefore we explicitly cast (at least)
324*0Sstevel@tonic-gate * one of the operands, forcing conversion BEFORE
325*0Sstevel@tonic-gate * multiplication, and avoiding overflow. The second
326*0Sstevel@tonic-gate * assignment is OK, since one of the operands is
327*0Sstevel@tonic-gate * already of the desired type.
328*0Sstevel@tonic-gate */
329*0Sstevel@tonic-gate cylsize =
330*0Sstevel@tonic-gate ((unsigned long long)mdgp->nhead) * mdgp->nsect;
331*0Sstevel@tonic-gate drvsize = cylsize * mdgp->ncyl;
332*0Sstevel@tonic-gate
333*0Sstevel@tonic-gate /*
334*0Sstevel@tonic-gate * How many cylinders must we reserve for the replica
335*0Sstevel@tonic-gate * slice to ensure that it meets the previously
336*0Sstevel@tonic-gate * calculated minimum size?
337*0Sstevel@tonic-gate */
338*0Sstevel@tonic-gate reservedcyl = (ressize + cylsize - 1) / cylsize;
339*0Sstevel@tonic-gate ressize = reservedcyl * cylsize;
340*0Sstevel@tonic-gate } else {
341*0Sstevel@tonic-gate drvsize = last_lba - first_lba;
342*0Sstevel@tonic-gate }
343*0Sstevel@tonic-gate
344*0Sstevel@tonic-gate /* Would this require a forbidden change? */
345*0Sstevel@tonic-gate if (options & MD_REPART_LEAVE_REP) {
346*0Sstevel@tonic-gate if ((mdvp->parts[replicaslice].start != first_lba) ||
347*0Sstevel@tonic-gate (mdvp->parts[replicaslice].size < ressize)) {
348*0Sstevel@tonic-gate return (mddeverror(ep, MDE_REPART_REPLICA,
349*0Sstevel@tonic-gate resnp->dev, NULL));
350*0Sstevel@tonic-gate }
351*0Sstevel@tonic-gate }
352*0Sstevel@tonic-gate
353*0Sstevel@tonic-gate /*
354*0Sstevel@tonic-gate * It seems unlikely that someone would pass us too small a
355*0Sstevel@tonic-gate * disk, but it's still worth checking for...
356*0Sstevel@tonic-gate */
357*0Sstevel@tonic-gate if (((round_sizes != 0) && (reservedcyl >= (int)mdgp->ncyl)) ||
358*0Sstevel@tonic-gate ((round_sizes == 0) && (ressize + first_lba >= last_lba))) {
359*0Sstevel@tonic-gate return (mdmddberror(ep, MDE_DB_TOOSMALL,
360*0Sstevel@tonic-gate meta_getminor(resnp->dev), sp->setno, 0, NULL));
361*0Sstevel@tonic-gate }
362*0Sstevel@tonic-gate
363*0Sstevel@tonic-gate replica_start = first_lba;
364*0Sstevel@tonic-gate replica_size = ressize;
365*0Sstevel@tonic-gate data_start = first_lba + ressize;
366*0Sstevel@tonic-gate data_size = drvsize - ressize;
367*0Sstevel@tonic-gate
368*0Sstevel@tonic-gate /*
369*0Sstevel@tonic-gate * Create the proposed VTOC. First copy the current VTOC
370*0Sstevel@tonic-gate * into the proposed VTOC to duplicate the values that don't
371*0Sstevel@tonic-gate * need to change. Then change the partition table and set
372*0Sstevel@tonic-gate * the flag value for the replica slice to resflag to reserve it
373*0Sstevel@tonic-gate * for metadata.
374*0Sstevel@tonic-gate */
375*0Sstevel@tonic-gate proposed_vtoc = *mdvp;
376*0Sstevel@tonic-gate /* We need at least replicaslice partitions in the proposed vtoc */
377*0Sstevel@tonic-gate if (replicaslice >= proposed_vtoc.nparts) {
378*0Sstevel@tonic-gate proposed_vtoc.nparts = replicaslice + 1;
379*0Sstevel@tonic-gate }
380*0Sstevel@tonic-gate for (i = 0; i < proposed_vtoc.nparts; i++) {
381*0Sstevel@tonic-gate /* don't change the reserved partition of an EFI device */
382*0Sstevel@tonic-gate if (proposed_vtoc.parts[i].tag == V_RESERVED)
383*0Sstevel@tonic-gate data_size = proposed_vtoc.parts[i].start - data_start;
384*0Sstevel@tonic-gate else
385*0Sstevel@tonic-gate (void) memset(&proposed_vtoc.parts[i], '\0',
386*0Sstevel@tonic-gate sizeof (proposed_vtoc.parts[i]));
387*0Sstevel@tonic-gate }
388*0Sstevel@tonic-gate
389*0Sstevel@tonic-gate proposed_vtoc.parts[MD_SLICE0].start = data_start;
390*0Sstevel@tonic-gate proposed_vtoc.parts[MD_SLICE0].size = data_size;
391*0Sstevel@tonic-gate proposed_vtoc.parts[MD_SLICE0].tag = V_USR;
392*0Sstevel@tonic-gate proposed_vtoc.parts[replicaslice].start = replica_start;
393*0Sstevel@tonic-gate proposed_vtoc.parts[replicaslice].size = replica_size;
394*0Sstevel@tonic-gate proposed_vtoc.parts[replicaslice].flag = resflag;
395*0Sstevel@tonic-gate proposed_vtoc.parts[replicaslice].tag = V_USR;
396*0Sstevel@tonic-gate
397*0Sstevel@tonic-gate if (!(options & MD_REPART_DONT_LABEL)) {
398*0Sstevel@tonic-gate /*
399*0Sstevel@tonic-gate * Label the disk with the proposed VTOC.
400*0Sstevel@tonic-gate */
401*0Sstevel@tonic-gate *mdvp = proposed_vtoc;
402*0Sstevel@tonic-gate if (metasetvtoc(resnp, ep) != 0) {
403*0Sstevel@tonic-gate return (-1);
404*0Sstevel@tonic-gate }
405*0Sstevel@tonic-gate }
406*0Sstevel@tonic-gate
407*0Sstevel@tonic-gate if (vtocp != NULL) {
408*0Sstevel@tonic-gate /*
409*0Sstevel@tonic-gate * Return the proposed VTOC.
410*0Sstevel@tonic-gate */
411*0Sstevel@tonic-gate *vtocp = proposed_vtoc;
412*0Sstevel@tonic-gate }
413*0Sstevel@tonic-gate
414*0Sstevel@tonic-gate return (0);
415*0Sstevel@tonic-gate }
416