installer: Remove some unused variables and code.
[dragonfly.git] / usr.sbin / installer / dfuibe_installer / fn_subpart_ufs.c
1 /*
2  * Copyright (c)2004 The DragonFly Project.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  *   Redistributions of source code must retain the above copyright
9  *   notice, this list of conditions and the following disclaimer.
10  *
11  *   Redistributions in binary form must reproduce the above copyright
12  *   notice, this list of conditions and the following disclaimer in
13  *   the documentation and/or other materials provided with the
14  *   distribution.
15  *
16  *   Neither the name of the DragonFly Project nor the names of its
17  *   contributors may be used to endorse or promote products derived
18  *   from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
31  * OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33
34 /*
35  * fn_subpart.c
36  * Installer Function : Create Subpartitions.
37  * $Id: fn_subpart.c,v 1.50 2005/04/07 20:22:40 cpressey Exp $
38  */
39
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43
44 #ifdef ENABLE_NLS
45 #include <libintl.h>
46 #define _(String) gettext (String)
47 #else
48 #define _(String) (String)
49 #endif
50
51 #include "libaura/mem.h"
52 #include "libaura/buffer.h"
53 #include "libaura/dict.h"
54 #include "libaura/fspred.h"
55
56 #include "libdfui/dfui.h"
57 #include "libdfui/dump.h"
58 #include "libdfui/system.h"
59
60 #include "libinstaller/commands.h"
61 #include "libinstaller/diskutil.h"
62 #include "libinstaller/functions.h"
63 #include "libinstaller/uiutil.h"
64
65 #include "fn.h"
66 #include "flow.h"
67 #include "pathnames.h"
68
69 static int      create_subpartitions(struct i_fn_args *);
70 static long     default_capacity(struct storage *, int);
71 static int      check_capacity(struct i_fn_args *);
72 static int      check_subpartition_selections(struct dfui_response *, struct i_fn_args *);
73 static void     save_subpartition_selections(struct dfui_response *, struct i_fn_args *);
74 static void     populate_create_subpartitions_form(struct dfui_form *, struct i_fn_args *);
75 static int      warn_subpartition_selections(struct i_fn_args *);
76 static int      warn_encrypted_root(struct i_fn_args *);
77 static struct dfui_form *make_create_subpartitions_form(struct i_fn_args *);
78 static int      show_create_subpartitions_form(struct dfui_form *, struct i_fn_args *);
79
80 static const char *def_mountpt[]  = {"/", "swap", "/var", "/tmp", "/usr", "/home", NULL};
81 static int expert = 0;
82
83 /*
84  * Given a set of subpartitions-to-be in the selected slice,
85  * create them.
86  */
87 static int
88 create_subpartitions(struct i_fn_args *a)
89 {
90         struct subpartition *sp;
91         struct commands *cmds;
92         int result = 0;
93         int num_partitions;
94
95         cmds = commands_new();
96         if (!is_file("%sinstall.disklabel.%s",
97             a->tmp,
98             slice_get_device_name(storage_get_selected_slice(a->s)))) {
99                 /*
100                  * Get a copy of the 'virgin' disklabel.
101                  * XXX It might make more sense for this to
102                  * happen right after format_slice() instead.
103                  */
104                 command_add(cmds, "%s%s -r %s >%sinstall.disklabel.%s",
105                     a->os_root, cmd_name(a, "DISKLABEL64"),
106                     slice_get_device_name(storage_get_selected_slice(a->s)),
107                     a->tmp,
108                     slice_get_device_name(storage_get_selected_slice(a->s)));
109         }
110
111         /*
112          * Weave together a new disklabel out the of the 'virgin'
113          * disklabel, and the user's subpartition choices.
114          */
115
116         /*
117          * Take everything from the 'virgin' disklabel up until the
118          * '16 partitions' line.
119          */
120         num_partitions = 16;
121         command_add(cmds, "%s%s '$2==\"partitions:\" || cut { cut = 1 } !cut { print $0 }' <%sinstall.disklabel.%s >%sinstall.disklabel",
122             a->os_root, cmd_name(a, "AWK"),
123             a->tmp,
124             slice_get_device_name(storage_get_selected_slice(a->s)),
125             a->tmp);
126
127         /*
128          * 16 partitions:
129          * #          size     offset    fstype
130          *   c:   16383969          0    unused #    7999.985MB
131          */
132
133         command_add(cmds, "%s%s '%d partitions:' >>%sinstall.disklabel",
134             a->os_root, cmd_name(a, "ECHO"), num_partitions ,a->tmp);
135         command_add(cmds, "%s%s '%s' >>%sinstall.disklabel",
136             a->os_root, cmd_name(a, "ECHO"),
137             "#          size     offset    fstype",
138             a->tmp);
139
140 #ifdef DEBUG
141         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
142              sp != NULL; sp = subpartition_next(sp)) {
143                 command_add(cmds, "%s%s 'mountpoint: %s device: %s'",
144                      a->os_root, cmd_name(a, "ECHO"),
145                      subpartition_get_mountpoint(sp),
146                      subpartition_get_device_name(sp));
147         }
148 #endif
149
150         /*
151          * Write a line for each subpartition the user wants.
152          */
153         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
154              sp != NULL; sp = subpartition_next(sp)) {
155                 if (subpartition_is_tmpfsbacked(sp)) {
156                         continue;
157                 }
158                 if (subpartition_is_swap(sp)) {
159                         command_add(cmds, "%s%s '  %c:\t%s\t*\tswap' >>%sinstall.disklabel",
160                             a->os_root, cmd_name(a, "ECHO"),
161                             subpartition_get_letter(sp),
162                             capacity_to_string(subpartition_get_capacity(sp)),
163                             a->tmp);
164                 } else {
165                         command_add(cmds, "%s%s '  %c:\t%s\t%s\t4.2BSD' >>%sinstall.disklabel",
166                             a->os_root, cmd_name(a, "ECHO"),
167                             subpartition_get_letter(sp),
168                             capacity_to_string(subpartition_get_capacity(sp)),
169                             subpartition_get_letter(sp) == 'a' ? "0" : "*",
170                             a->tmp);
171                 }
172         }
173         temp_file_add(a, "install.disklabel");
174
175         /*
176          * Label the slice from the disklabel we just wove together.
177          */
178         command_add(cmds, "%s%s -R -B -r %s %sinstall.disklabel",
179             a->os_root, cmd_name(a, "DISKLABEL64"),
180             slice_get_device_name(storage_get_selected_slice(a->s)),
181             a->tmp);
182
183         /*
184          * Create a snapshot of the disklabel we just created
185          * for debugging inspection in the log.
186          */
187         command_add(cmds, "%s%s %s",
188             a->os_root, cmd_name(a, "DISKLABEL64"),
189             slice_get_device_name(storage_get_selected_slice(a->s)));
190
191         /*
192          * If encryption was specified, load dm(4).
193          */
194         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
195              sp != NULL; sp = subpartition_next(sp)) {
196                 if (subpartition_is_encrypted(sp)) {
197                         fn_get_passphrase(a);
198                         break;
199                 }
200         }
201
202         /*
203          * Create filesystems on the newly-created subpartitions.
204          */
205         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
206              sp != NULL; sp = subpartition_next(sp)) {
207                 if (subpartition_is_swap(sp) || subpartition_is_tmpfsbacked(sp)) {
208                         if (subpartition_is_swap(sp) &&
209                             subpartition_is_encrypted(sp)) {
210                                 command_add(cmds,
211                                     "%s%s -d /tmp/t1 luksFormat %sdev/%s",
212                                     a->os_root, cmd_name(a, "CRYPTSETUP"),
213                                     a->os_root,
214                                     subpartition_get_device_name(sp));
215                                 command_add(cmds,
216                                     "%s%s -d /tmp/t1 luksOpen %sdev/%s swap",
217                                     a->os_root, cmd_name(a, "CRYPTSETUP"),
218                                     a->os_root,
219                                     subpartition_get_device_name(sp));
220                         }
221                         continue;
222                 }
223
224                 if (subpartition_is_encrypted(sp) &&
225                     strcmp(subpartition_get_mountpoint(sp), "/") != 0) {
226                         command_add(cmds,
227                             "%s%s -d /tmp/t1 luksFormat %sdev/%s",
228                             a->os_root, cmd_name(a, "CRYPTSETUP"),
229                             a->os_root,
230                             subpartition_get_device_name(sp));
231                         command_add(cmds,
232                             "%s%s -d /tmp/t1 luksOpen %sdev/%s %s",
233                             a->os_root, cmd_name(a, "CRYPTSETUP"),
234                             a->os_root,
235                             subpartition_get_device_name(sp),
236                             subpartition_get_mountpoint(sp) + 1);
237                         command_add(cmds, "%s%s%s -b %ld -f %ld %sdev/mapper/%s",
238                             a->os_root, cmd_name(a, "NEWFS"),
239                             subpartition_is_softupdated(sp) ? " -U" : "",
240                             subpartition_get_bsize(sp),
241                             subpartition_get_fsize(sp),
242                             a->os_root,
243                             subpartition_get_mountpoint(sp) + 1);
244                 } else {
245                         command_add(cmds, "%s%s%s -b %ld -f %ld %sdev/%s",
246                             a->os_root, cmd_name(a, "NEWFS"),
247                             subpartition_is_softupdated(sp) ? " -U" : "",
248                             subpartition_get_bsize(sp),
249                             subpartition_get_fsize(sp),
250                             a->os_root,
251                             subpartition_get_device_name(sp));
252                 }
253         }
254
255         result = commands_execute(a, cmds);
256         commands_free(cmds);
257         return(result);
258 }
259
260 static long
261 default_capacity(struct storage *s, int mtpt)
262 {
263         unsigned long swap;
264         unsigned long capacity;
265         unsigned long mem;
266
267         if (mtpt == MTPT_HOME)
268                 return(-1);
269
270         capacity = slice_get_capacity(storage_get_selected_slice(s));
271         mem = storage_get_memsize(s);
272         swap = 2 * mem;
273         if (mem > (capacity / 2) || capacity < 4096)
274                 swap = mem;
275         if (mem > capacity)
276                 swap = capacity / 2;
277         if (swap > SWAP_MAX)
278                 swap = SWAP_MAX;
279
280         if (capacity < DISK_MIN) {
281                 /*
282                  * For the purposes of this installer:
283                  * can't be done.  Sorry.
284                  */
285                 return(-1);
286         } else if (capacity < 4096) {
287                 switch (mtpt) {
288                 case MTPT_ROOT: return(320);
289                 case MTPT_SWAP: return(swap);
290                 case MTPT_VAR:  return(128);
291                 case MTPT_TMP:  return(128);
292                 case MTPT_USR:  return(1472);
293                 }
294         } else if (capacity < 10240) {
295                 switch (mtpt) {
296                 case MTPT_ROOT: return(640);
297                 case MTPT_SWAP: return(swap);
298                 case MTPT_VAR:  return(256);
299                 case MTPT_TMP:  return(256);
300                 case MTPT_USR:  return(2688);
301                 }
302         } else {
303                 switch (mtpt) {
304                 case MTPT_ROOT: return(768);
305                 case MTPT_SWAP: return(swap);
306                 case MTPT_VAR:  return(256);
307                 case MTPT_TMP:  return(256);
308                 case MTPT_USR:  return(7680);
309                 }
310         }
311         /* shouldn't ever happen */
312         return(-1);
313 }
314
315 static int
316 check_capacity(struct i_fn_args *a)
317 {
318         struct subpartition *sp;
319         long min_capacity[] = {320, 0, 16, 0, 1472, 0, 0};
320         unsigned long total_capacity = 0;
321         int mtpt;
322
323         if (subpartition_find(storage_get_selected_slice(a->s), "/usr") == NULL)
324                 min_capacity[MTPT_ROOT] += min_capacity[MTPT_USR];
325
326         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
327              sp != NULL; sp = subpartition_next(sp)) {
328                 long subpart_capacity = subpartition_get_capacity(sp);
329                 const char *mountpt = subpartition_get_mountpoint(sp);
330
331                 if (subpart_capacity == -1)
332                         total_capacity++;
333                 else
334                         total_capacity += subpart_capacity;
335                 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
336                         if (strcmp(mountpt, def_mountpt[mtpt]) == 0 &&
337                             subpart_capacity < min_capacity[mtpt] &&
338                             subpart_capacity != -1) {
339                                 inform(a->c, _("WARNING: The size (%ldM) specified for "
340                                     "the %s subpartition is too small. It "
341                                     "should be at least %ldM or you will "
342                                     "risk running out of space during "
343                                     "the installation."),
344                                     subpart_capacity, mountpt,
345                                     min_capacity[mtpt]);
346                         }
347                 }
348         }
349
350         if (total_capacity > slice_get_capacity(storage_get_selected_slice(a->s))) {
351                 inform(a->c, _("The space allocated to all of your selected "
352                     "subpartitions (%luM) exceeds the total "
353                     "capacity of the selected primary partition "
354                     "(%luM). Remove some subpartitions or choose "
355                     "a smaller size for them and try again."),
356                     total_capacity, slice_get_capacity(storage_get_selected_slice(a->s)));
357                 return(0);
358         }
359
360         return(1);
361 }
362
363 static int
364 check_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
365 {
366         struct dfui_dataset *ds;
367         struct dfui_dataset *star_ds = NULL;
368         struct aura_dict *d;
369         const char *mountpoint, *capstring;
370         long capacity = 0;
371         int found_root = 0;
372         int valid = 1;
373
374         d = aura_dict_new(1, AURA_DICT_LIST);
375
376         if ((ds = dfui_response_dataset_get_first(r)) == NULL) {
377                 inform(a->c, _("Please set up at least one subpartition."));
378                 valid = 0;
379         }
380
381         for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
382             ds = dfui_dataset_get_next(ds)) {
383 #ifdef DEBUG
384                 dfui_dataset_dump(ds);
385 #endif
386                 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
387                 capstring = dfui_dataset_get_value(ds, "capacity");
388
389                 if (expert) {
390                         int tmpfsbacked;
391
392                         tmpfsbacked = (strcmp(dfui_dataset_get_value(ds, "tmpfsbacked"), "Y") == 0);
393                         if (tmpfsbacked && strcmp(mountpoint, "/") == 0) {
394                                 inform(a->c, _("/ cannot be TMPFS backed."));
395                                 valid = 0;
396                         }
397                 }
398
399                 if (aura_dict_exists(d, mountpoint, strlen(mountpoint) + 1)) {
400                         inform(a->c, _("The same mount point cannot be specified "
401                             "for two different subpartitions."));
402                         valid = 0;
403                 }
404
405                 if (strcmp(mountpoint, "/") == 0)
406                         found_root = 1;
407
408                 if (strcmp(capstring, "*") == 0) {
409                         if (star_ds != NULL) {
410                                 inform(a->c, _("You cannot have more than one subpartition "
411                                     "with a '*' capacity (meaning 'use the remainder "
412                                     "of the primary partition'.)"));
413                                 valid = 0;
414                         } else {
415                                 star_ds = ds;
416                         }
417                 }
418
419                 if (!(!strcasecmp(mountpoint, "swap") || mountpoint[0] == '/')) {
420                         inform(a->c, _("Mount point must be either 'swap', or it must "
421                             "start with a '/'."));
422                         valid = 0;
423                 }
424
425                 if (strpbrk(mountpoint, " \\\"'`") != NULL) {
426                         inform(a->c, _("Mount point may not contain the following "
427                             "characters: blank space, backslash, or "
428                             "single, double, or back quotes."));
429                         valid = 0;
430                 }
431
432                 if (strlen(capstring) == 0) {
433                         inform(a->c, _("A capacity must be specified."));
434                         valid = 0;
435                 }
436
437                 if (!string_to_capacity(capstring, &capacity)) {
438                         inform(a->c, _("Capacity must be either a '*' symbol to indicate "
439                             "'use the rest of the primary partition', or it "
440                             "must be a series of decimal digits ending with a "
441                             "'M' (indicating megabytes) or a 'G' (indicating "
442                             "gigabytes.)"));
443                         valid = 0;
444                 }
445
446                 /*
447                  * Maybe remove this limit entirely?
448                  */
449                 if ((strcasecmp(mountpoint, "swap") == 0) &&
450                     (capacity > SWAP_MAX)) {
451                         inform(a->c, _("Swap capacity is limited to %dG."),
452                             SWAP_MAX / 1024);
453                         valid = 0;
454                 }
455
456                 /*
457                  * If we made it through that obstacle course, all is well.
458                  */
459
460                 if (valid)
461                         aura_dict_store(d, mountpoint, strlen(mountpoint) + 1, "", 1);
462         }
463
464         if (!found_root) {
465                 inform(a->c, _("You must include a / (root) subpartition."));
466                 valid = 0;
467         }
468
469         if (aura_dict_size(d) > 16) {
470                 inform(a->c, _("You cannot have more than 16 subpartitions "
471                     "on a single primary partition.  Remove some "
472                     "and try again."));
473                 valid = 0;
474         }
475
476         aura_dict_free(d);
477
478         return(valid);
479 }
480
481 static void
482 save_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
483 {
484         struct dfui_dataset *ds;
485         char tmpfsbacked;
486         const char *mountpoint, *capstring;
487         long capacity;
488         long bsize, fsize;
489         int softupdates;
490         int valid = 1;
491
492         subpartitions_free(storage_get_selected_slice(a->s));
493
494         for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
495             ds = dfui_dataset_get_next(ds)) {
496                 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
497                 capstring = dfui_dataset_get_value(ds, "capacity");
498
499                 if (expert) {
500                         softupdates =
501                             (strcmp(dfui_dataset_get_value(ds, "softupdates"), "Y") == 0);
502                         fsize = atol(dfui_dataset_get_value(ds, "fsize"));
503                         bsize = atol(dfui_dataset_get_value(ds, "bsize"));
504                         tmpfsbacked = (strcmp(dfui_dataset_get_value(ds, "tmpfsbacked"), "Y") == 0);
505                 } else {
506                         softupdates = (strcmp(mountpoint, "/") == 0 ? 0 : 1);
507                         tmpfsbacked = 0;
508                         fsize = -1;
509                         bsize = -1;
510                 }
511
512                 if (string_to_capacity(capstring, &capacity)) {
513                         subpartition_new_ufs(storage_get_selected_slice(a->s),
514                             mountpoint, capacity,
515                             strcasecmp(dfui_dataset_get_value(ds, "encrypted"), "Y") == 0,
516                             softupdates, fsize, bsize, tmpfsbacked);
517                 }
518         }
519 }
520
521 static void
522 populate_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
523 {
524         struct subpartition *sp;
525         struct dfui_dataset *ds;
526         char temp[32];
527         int mtpt;
528         long capacity;
529
530         if (slice_subpartition_first(storage_get_selected_slice(a->s)) != NULL) {
531                 /*
532                  * The user has already given us their subpartition
533                  * preferences, so use them here.
534                  */
535                 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
536                      sp != NULL; sp = subpartition_next(sp)) {
537                         ds = dfui_dataset_new();
538                         dfui_dataset_celldata_add(ds, "mountpoint",
539                             subpartition_get_mountpoint(sp));
540                         dfui_dataset_celldata_add(ds, "capacity",
541                             capacity_to_string(subpartition_get_capacity(sp)));
542                         dfui_dataset_celldata_add(ds, "encrypted",
543                             subpartition_is_encrypted(sp) ? "Y" : "N");
544                         if (expert) {
545                                 dfui_dataset_celldata_add(ds, "softupdates",
546                                     subpartition_is_softupdated(sp) ? "Y" : "N");
547                                 dfui_dataset_celldata_add(ds, "tmpfsbacked",
548                                     subpartition_is_tmpfsbacked(sp) ? "Y" : "N");
549                                 snprintf(temp, 32, "%ld", subpartition_get_fsize(sp));
550                                 dfui_dataset_celldata_add(ds, "fsize",
551                                     temp);
552                                 snprintf(temp, 32, "%ld", subpartition_get_bsize(sp));
553                                 dfui_dataset_celldata_add(ds, "bsize",
554                                     temp);
555                         }
556                         dfui_form_dataset_add(f, ds);
557                 }
558         } else {
559                 /*
560                  * Otherwise, populate the form with datasets representing
561                  * reasonably-calculated defaults.  The defaults are chosen
562                  * based on the slice's total capacity and the machine's
563                  * total physical memory (for swap.)
564                  */
565                 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
566                         capacity = default_capacity(a->s, mtpt);
567                         ds = dfui_dataset_new();
568                         dfui_dataset_celldata_add(ds, "mountpoint",
569                             def_mountpt[mtpt]);
570                         dfui_dataset_celldata_add(ds, "capacity",
571                             capacity_to_string(capacity));
572                         dfui_dataset_celldata_add(ds, "encrypted", "N");
573                         if (expert) {
574                                 dfui_dataset_celldata_add(ds, "softupdates",
575                                     strcmp(def_mountpt[mtpt], "/") != 0 ? "Y" : "N");
576                                 dfui_dataset_celldata_add(ds, "tmpfsbacked",
577                                     "N");
578                                 dfui_dataset_celldata_add(ds, "fsize",
579                                     capacity < 1024 ? "1024" : "2048");
580                                 dfui_dataset_celldata_add(ds, "bsize",
581                                     capacity < 1024 ? "8192" : "16384");
582                         }
583                         dfui_form_dataset_add(f, ds);
584                 }
585         }
586 }
587
588 static int
589 warn_subpartition_selections(struct i_fn_args *a)
590 {
591         int valid = 0;
592         struct aura_buffer *omit, *consequences;
593
594         omit = aura_buffer_new(2048);
595         consequences = aura_buffer_new(2048);
596
597         valid = check_capacity(a);
598         if (subpartition_find(storage_get_selected_slice(a->s), "/var") == NULL) {
599                 aura_buffer_cat(omit, "/var ");
600                 aura_buffer_cat(consequences, _("/var will be a plain dir in /\n"));
601         }
602         if (subpartition_find(storage_get_selected_slice(a->s), "/usr") == NULL) {
603                 aura_buffer_cat(omit, "/usr ");
604                 aura_buffer_cat(consequences, _("/usr will be a plain dir in /\n"));
605         }
606         if (subpartition_find(storage_get_selected_slice(a->s), "/tmp") == NULL) {
607                 aura_buffer_cat(omit, "/tmp ");
608                 aura_buffer_cat(consequences, _("/tmp will be symlinked to /var/tmp\n"));
609         }
610         if (subpartition_find(storage_get_selected_slice(a->s), "/home") == NULL) {
611                 aura_buffer_cat(omit, "/home ");
612                 aura_buffer_cat(consequences, _("/home will be symlinked to /usr/home\n"));
613         }
614
615         if (valid && aura_buffer_len(omit) > 0) {
616                 switch (dfui_be_present_dialog(a->c, _("Really omit?"),
617                     _("Omit Subpartition(s)|Return to Create Subpartitions"),
618                     _("You have elected to not have the following "
619                     "subpartition(s):\n\n%s\n\n"
620                     "The ramifications of these subpartition(s) being "
621                     "missing will be:\n\n%s\n"
622                     "Is this really what you want to do?"),
623                     aura_buffer_buf(omit), aura_buffer_buf(consequences))) {
624                 case 1:
625                         valid = 1;
626                         break;
627                 case 2:
628                         valid = 0;
629                         break;
630                 default:
631                         abort_backend();
632                 }
633         }
634
635         aura_buffer_free(omit);
636         aura_buffer_free(consequences);
637
638         return(!valid);
639 }
640
641 static int
642 warn_encrypted_root(struct i_fn_args *a)
643 {
644         int valid = 1;
645         struct subpartition *sp;
646
647         sp = subpartition_find(storage_get_selected_slice(a->s), "/");
648         if (sp == NULL)
649                 return(!valid);
650
651         if (subpartition_is_encrypted(sp)) {
652                 switch (dfui_be_present_dialog(a->c, _("root cannot be encrypted"),
653                     _("Leave root unencrypted|Return to Create Subpartitions"),
654                     _("You have selected encryption for the root partition which "
655                     "is not supported."))) {
656                 case 1:
657                         subpartition_clr_encrypted(sp);
658                         valid = 1;
659                         break;
660                 case 2:
661                         valid = 0;
662                         break;
663                 default:
664                         abort_backend();
665                 }
666         }
667
668         return(!valid);
669 }
670
671 static struct dfui_form *
672 make_create_subpartitions_form(struct i_fn_args *a)
673 {
674         struct dfui_field *fi;
675         struct dfui_form *f;
676         char msg_buf[1][1024];
677
678         snprintf(msg_buf[0], sizeof(msg_buf[0]),
679             _("Subpartitions further divide a primary partition for "
680             "use with %s.  Some reasons you may want "
681             "a set of subpartitions are:\n\n"
682             "- you want to restrict how much data can be written "
683             "to certain parts of the primary partition, to quell "
684             "denial-of-service attacks; and\n"
685             "- you want to speed up access to data on the disk."
686             ""), OPERATING_SYSTEM_NAME);
687
688         f = dfui_form_create(
689             "create_subpartitions",
690             _("Create Subpartitions"),
691             _("Set up the subpartitions (also known as just `partitions' "
692             "in BSD tradition) you want to have on this primary "
693             "partition.\n\n"
694             "For Capacity, use 'M' to indicate megabytes, 'G' to "
695             "indicate gigabytes, or a single '*' to indicate "
696             "'use the remaining space on the primary partition'."),
697
698             msg_buf[0],
699
700             "p", "special", "dfinstaller_create_subpartitions",
701             "p", "minimum_width","64",
702
703             "f", "mountpoint", _("Mountpoint"), "", "",
704             "f", "capacity", _("Capacity"), "", "",
705
706             "f", "encrypted", _("Encrypted"), "", "",
707             "p", "control", "checkbox",
708
709             "a", "ok", _("Accept and Create"), "", "",
710             "a", "cancel",
711             (disk_get_formatted(storage_get_selected_disk(a->s)) ?
712             _("Return to Select Disk") :
713             _("Return to Select Primary Partition")), "", "",
714             "p", "accelerator", "ESC",
715
716             NULL
717         );
718
719         dfui_form_set_multiple(f, 1);
720         dfui_form_set_extensible(f, 1);
721
722         if (expert) {
723                 fi = dfui_form_field_add(f, "softupdates",
724                     dfui_info_new(_("Softupdates"), "", ""));
725                 dfui_field_property_set(fi, "control", "checkbox");
726
727                 fi = dfui_form_field_add(f, "tmpfsbacked",
728                     dfui_info_new(_("TMPFS"), "", ""));
729                 dfui_field_property_set(fi, "control", "checkbox");
730
731                 fi = dfui_form_field_add(f, "fsize",
732                     dfui_info_new(_("Frag Sz"), "", ""));
733
734                 fi = dfui_form_field_add(f, "bsize",
735                     dfui_info_new(_("Block Sz"), "", ""));
736
737                 dfui_form_action_add(f, "switch",
738                     dfui_info_new(_("Switch to Normal Mode"), "", ""));
739         } else {
740                 dfui_form_action_add(f, "switch",
741                     dfui_info_new(_("Switch to Expert Mode"), "", ""));
742         }
743
744         return(f);
745 }
746
747 /*
748  * Returns:
749  *      -1 = the form should be redisplayed
750  *       0 = failure, function is over
751  *       1 = success, function is over
752  */
753 static int
754 show_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
755 {
756         struct dfui_dataset *ds;
757         struct dfui_response *r;
758
759         for (;;) {
760                 if (dfui_form_dataset_get_first(f) == NULL)
761                         populate_create_subpartitions_form(f, a);
762
763                 if (!dfui_be_present(a->c, f, &r))
764                         abort_backend();
765
766                 if (strcmp(dfui_response_get_action_id(r), "cancel") == 0) {
767                         dfui_response_free(r);
768                         return(0);
769                 } else if (strcmp(dfui_response_get_action_id(r), "switch") == 0) {
770                         if (check_subpartition_selections(r, a)) {
771                                 save_subpartition_selections(r, a);
772                                 expert = expert ? 0 : 1;
773                                 dfui_response_free(r);
774                                 return(-1);
775                         }
776                 } else {
777                         if (check_subpartition_selections(r, a)) {
778                                 save_subpartition_selections(r, a);
779                                 if (!warn_subpartition_selections(a) &&
780                                     !warn_encrypted_root(a)) {
781                                         if (!create_subpartitions(a)) {
782                                                 inform(a->c, _("The subpartitions you chose were "
783                                                         "not correctly created, and the "
784                                                         "primary partition may "
785                                                         "now be in an inconsistent state. "
786                                                         "We recommend re-formatting it "
787                                                         "before proceeding."));
788                                                 dfui_response_free(r);
789                                                 return(0);
790                                         } else {
791                                                 dfui_response_free(r);
792                                                 return(1);
793                                         }
794                                 }
795                         }
796                 }
797
798                 dfui_form_datasets_free(f);
799                 /* dfui_form_datasets_add_from_response(f, r); */
800                 for (ds = dfui_response_dataset_get_first(r); ds != NULL;
801                     ds = dfui_dataset_get_next(ds)) {
802                         dfui_form_dataset_add(f, dfui_dataset_dup(ds));
803                 }
804         }
805 }
806
807 void
808 fn_create_subpartitions_ufs(struct i_fn_args *a)
809 {
810         struct dfui_form *f;
811         int done = 0;
812
813         a->result = 0;
814         while (!done) {
815                 f = make_create_subpartitions_form(a);
816                 switch (show_create_subpartitions_form(f, a)) {
817                 case -1:
818                         done = 0;
819                         break;
820                 case 0:
821                         done = 1;
822                         a->result = 0;
823                         break;
824                 case 1:
825                         done = 1;
826                         a->result = 1;
827                         break;
828                 }
829                 dfui_form_free(f);
830         }
831 }