usr.sbin/installer/dfuibe_installer/fn_subpart_hammer.c

   1 /*
   2  * Copyright (c) 2008 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_hammer.c
  36  * Installer Function : Create HAMMER Subpartitions.
  37  */
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42
  43 #ifdef ENABLE_NLS
  44 #include <libintl.h>
  45 #define _(String) gettext (String)
  46 #else
  47 #define _(String) (String)
  48 #endif
  49
  50 #include "libaura/mem.h"
  51 #include "libaura/buffer.h"
  52 #include "libaura/dict.h"
  53 #include "libaura/fspred.h"
  54
  55 #include "libdfui/dfui.h"
  56 #include "libdfui/dump.h"
  57 #include "libdfui/system.h"
  58
  59 #include "libinstaller/commands.h"
  60 #include "libinstaller/diskutil.h"
  61 #include "libinstaller/functions.h"
  62 #include "libinstaller/uiutil.h"
  63
  64 #include "fn.h"
  65 #include "flow.h"
  66 #include "pathnames.h"
  67
  68 static int      create_subpartitions(struct i_fn_args *);
  69 static long     default_capacity(struct storage *, const char *);
  70 static int      check_capacity(struct i_fn_args *);
  71 static int      check_subpartition_selections(struct dfui_response *, struct i_fn_args *);
  72 static void     save_subpartition_selections(struct dfui_response *, struct i_fn_args *);
  73 static void     populate_create_subpartitions_form(struct dfui_form *, struct i_fn_args *);
  74 static int      warn_subpartition_selections(struct i_fn_args *);
  75 static int      warn_encrypted_boot(struct i_fn_args *);
  76 static struct dfui_form *make_create_subpartitions_form(struct i_fn_args *);
  77 static int      show_create_subpartitions_form(struct dfui_form *, struct i_fn_args *);
  78
  79 static const char *def_mountpt[]  = {"/boot", "swap", "/", NULL};
  80 static int expert = 0;
  81
  82 /*
  83  * Given a set of subpartitions-to-be in the selected slice,
  84  * create them.
  85  */
  86 static int
  87 create_subpartitions(struct i_fn_args *a)
  88 {
  89         struct subpartition *sp;
  90         struct commands *cmds;
  91         int result = 0;
  92         int num_partitions;
  93
  94         cmds = commands_new();
  95         if (!is_file("%sinstall.disklabel.%s",
  96             a->tmp,
  97             slice_get_device_name(storage_get_selected_slice(a->s)))) {
  98                 /*
  99                  * Get a copy of the 'virgin' disklabel.
 100                  * XXX It might make more sense for this to
 101                  * happen right after format_slice() instead.
 102                  */
 103                 command_add(cmds, "%s%s -r %s >%sinstall.disklabel.%s",
 104                     a->os_root, cmd_name(a, "DISKLABEL64"),
 105                     slice_get_device_name(storage_get_selected_slice(a->s)),
 106                     a->tmp,
 107                     slice_get_device_name(storage_get_selected_slice(a->s)));
 108         }
 109
 110         /*
 111          * Weave together a new disklabel out the of the 'virgin'
 112          * disklabel, and the user's subpartition choices.
 113          */
 114
 115         /*
 116          * Take everything from the 'virgin' disklabel up until the
 117          * '16 partitions' line.
 118          */
 119         num_partitions = 16;
 120         command_add(cmds, "%s%s '$2==\"partitions:\" || cut { cut = 1 } !cut { print $0 }' <%sinstall.disklabel.%s >%sinstall.disklabel",
 121             a->os_root, cmd_name(a, "AWK"),
 122             a->tmp,
 123             slice_get_device_name(storage_get_selected_slice(a->s)),
 124             a->tmp);
 125
 126         /*
 127          * 16 partitions:
 128          * #          size     offset    fstype
 129          *   c:   16383969          0    unused #    7999.985MB
 130          */
 131
 132         command_add(cmds, "%s%s '%d partitions:' >>%sinstall.disklabel",
 133             a->os_root, cmd_name(a, "ECHO"), num_partitions ,a->tmp);
 134         command_add(cmds, "%s%s '%s' >>%sinstall.disklabel",
 135             a->os_root, cmd_name(a, "ECHO"),
 136             "#          size     offset    fstype",
 137             a->tmp);
 138
 139 #ifdef DEBUG
 140         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 141              sp != NULL; sp = subpartition_next(sp)) {
 142                 command_add(cmds, "%s%s 'mountpoint: %s device: %s'",
 143                      a->os_root, cmd_name(a, "ECHO"),
 144                      subpartition_get_mountpoint(sp),
 145                      subpartition_get_device_name(sp));
 146         }
 147 #endif
 148
 149         /*
 150          * Write a line for each subpartition the user wants.
 151          */
 152         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 153              sp != NULL; sp = subpartition_next(sp)) {
 154                 if (subpartition_is_tmpfsbacked(sp)) {
 155                         continue;
 156                 }
 157                 if (subpartition_is_swap(sp)) {
 158                         command_add(cmds, "%s%s '  %c:\t%s\t*\tswap' >>%sinstall.disklabel",
 159                             a->os_root, cmd_name(a, "ECHO"),
 160                             subpartition_get_letter(sp),
 161                             capacity_to_string(subpartition_get_capacity(sp)),
 162                             a->tmp);
 163                 } else if (strcmp(subpartition_get_mountpoint(sp), "/boot") == 0) {
 164                         command_add(cmds, "%s%s '  %c:\t%s\t0\t4.2BSD' >>%sinstall.disklabel",
 165                             a->os_root, cmd_name(a, "ECHO"),
 166                             subpartition_get_letter(sp),
 167                             capacity_to_string(subpartition_get_capacity(sp)),
 168                             a->tmp);
 169                 } else {
 170                         command_add(cmds, "%s%s '  %c:\t%s\t*\tHAMMER' >>%sinstall.disklabel",
 171                             a->os_root, cmd_name(a, "ECHO"),
 172                             subpartition_get_letter(sp),
 173                             capacity_to_string(subpartition_get_capacity(sp)),
 174                             a->tmp);
 175                 }
 176         }
 177         temp_file_add(a, "install.disklabel");
 178
 179         /*
 180          * Label the slice from the disklabel we just wove together.
 181          */
 182         command_add(cmds, "%s%s -R -B -r %s %sinstall.disklabel",
 183             a->os_root, cmd_name(a, "DISKLABEL64"),
 184             slice_get_device_name(storage_get_selected_slice(a->s)),
 185             a->tmp);
 186
 187         /*
 188          * Create a snapshot of the disklabel we just created
 189          * for debugging inspection in the log.
 190          */
 191         command_add(cmds, "%s%s %s",
 192             a->os_root, cmd_name(a, "DISKLABEL64"),
 193             slice_get_device_name(storage_get_selected_slice(a->s)));
 194
 195         /*
 196          * If encryption was specified, load dm(4).
 197          */
 198         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 199              sp != NULL; sp = subpartition_next(sp)) {
 200                 if (subpartition_is_encrypted(sp)) {
 201                         fn_get_passphrase(a);
 202                         break;
 203                 }
 204         }
 205
 206         /*
 207          * Create filesystems on the newly-created subpartitions.
 208          */
 209         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 210              sp != NULL; sp = subpartition_next(sp)) {
 211                 if (subpartition_is_swap(sp) || subpartition_is_tmpfsbacked(sp)) {
 212                         if (subpartition_is_swap(sp) &&
 213                             subpartition_is_encrypted(sp)) {
 214                                 command_add(cmds,
 215                                     "%s%s -d /tmp/t1 luksFormat %sdev/%s",
 216                                     a->os_root, cmd_name(a, "CRYPTSETUP"),
 217                                     a->os_root,
 218                                     subpartition_get_device_name(sp));
 219                                 command_add(cmds,
 220                                     "%s%s -d /tmp/t1 luksOpen %sdev/%s swap",
 221                                     a->os_root, cmd_name(a, "CRYPTSETUP"),
 222                                     a->os_root,
 223                                     subpartition_get_device_name(sp));
 224                         }
 225                         continue;
 226                 }
 227
 228                 if (strcmp(subpartition_get_mountpoint(sp), "/boot") == 0) {
 229                         command_add(cmds, "%s%s %sdev/%s",
 230                             a->os_root, cmd_name(a, "NEWFS"),
 231                             a->os_root,
 232                             subpartition_get_device_name(sp));
 233                 } else {
 234                         if (subpartition_is_encrypted(sp)) {
 235                                 command_add(cmds,
 236                                     "%s%s -d /tmp/t1 luksFormat %sdev/%s",
 237                                     a->os_root, cmd_name(a, "CRYPTSETUP"),
 238                                     a->os_root,
 239                                     subpartition_get_device_name(sp));
 240                                 command_add(cmds,
 241                                     "%s%s -d /tmp/t1 luksOpen %sdev/%s root",
 242                                     a->os_root, cmd_name(a, "CRYPTSETUP"),
 243                                     a->os_root,
 244                                     subpartition_get_device_name(sp));
 245                         }
 246                         command_add(cmds, "%s%s -f -L ROOT %sdev/%s",
 247                             a->os_root, cmd_name(a, "NEWFS_HAMMER"),
 248                             a->os_root,
 249                             subpartition_is_encrypted(sp) ?
 250                             "mapper/root" : subpartition_get_device_name(sp));
 251                 }
 252         }
 253
 254         result = commands_execute(a, cmds);
 255         commands_free(cmds);
 256         return(result);
 257 }
 258
 259 static long
 260 default_capacity(struct storage *s, const char *mtpt)
 261 {
 262         unsigned long boot, root, swap;
 263         unsigned long capacity;
 264         unsigned long mem;
 265
 266         capacity = slice_get_capacity(storage_get_selected_slice(s));
 267         mem = storage_get_memsize(s);
 268
 269         /*
 270          * Try to get 768M for /boot, but if space is tight go down to 128M
 271          * in 128M steps.
 272          * For swap, start with 2*mem but take less if space is tight
 273          * (minimum is 384).
 274          * Rest goes to / (which is at least 75% slice size).
 275          */
 276
 277         root = capacity / 4 * 3;
 278         swap = 2 * mem;
 279         if (swap > 8192)
 280                 swap = 8192;
 281         boot = 768;
 282         while (boot + root > capacity - 384)
 283                 boot -= 128;
 284         if (boot + root + swap > capacity)
 285                 swap = capacity - boot - root;
 286
 287         if (capacity < DISK_MIN)
 288                 return(-1);
 289         else if (strcmp(mtpt, "/boot") == 0)
 290                 return(boot);
 291         else if (strcmp(mtpt, "swap") == 0)
 292                 return(swap);
 293         else if (strcmp(mtpt, "/") == 0)
 294                 return(-1);
 295
 296         /* shouldn't ever happen */
 297         return(-1);
 298 }
 299
 300 static int
 301 check_capacity(struct i_fn_args *a)
 302 {
 303         struct subpartition *sp;
 304         long min_capacity[] = {128, 0, DISK_MIN - 128, 0};
 305         unsigned long total_capacity = 0;
 306         unsigned long remaining_capacity;
 307         int mtpt, warn_smallpart = 0;
 308
 309         remaining_capacity = slice_get_capacity(storage_get_selected_slice(a->s));
 310         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 311              sp != NULL; sp = subpartition_next(sp)) {
 312                 if (subpartition_get_capacity(sp) != -1)
 313                         remaining_capacity -= subpartition_get_capacity(sp);
 314         }
 315
 316         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 317              sp != NULL; sp = subpartition_next(sp)) {
 318                 long subpart_capacity = subpartition_get_capacity(sp);
 319                 const char *mountpt = subpartition_get_mountpoint(sp);
 320
 321                 if (subpart_capacity == -1)
 322                         total_capacity++;
 323                 else
 324                         total_capacity += subpart_capacity;
 325                 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
 326                         if (strcmp(mountpt, def_mountpt[mtpt]) == 0 &&
 327                             subpart_capacity < min_capacity[mtpt] &&
 328                             subpart_capacity != -1) {
 329                                 inform(a->c, _("WARNING: The size (%ldM) specified for "
 330                                     "the %s subpartition is too small. It "
 331                                     "should be at least %ldM or you will "
 332                                     "risk running out of space during "
 333                                     "the installation."),
 334                                     subpart_capacity, mountpt,
 335                                     min_capacity[mtpt]);
 336                         }
 337                 }
 338                 if (strcmp(mountpt, "/boot") != 0 &&
 339                     strcmp(mountpt, "swap") != 0) {
 340                         if ((subpart_capacity == -1 && remaining_capacity < HAMMER_MIN) ||
 341                             (subpart_capacity != -1 && subpart_capacity < HAMMER_MIN))
 342                                 warn_smallpart++;
 343                 }
 344         }
 345
 346         if (total_capacity > slice_get_capacity(storage_get_selected_slice(a->s))) {
 347                 inform(a->c, _("The space allocated to all of your selected "
 348                     "subpartitions (%luM) exceeds the total "
 349                     "capacity of the selected primary partition "
 350                     "(%luM). Remove some subpartitions or choose "
 351                     "a smaller size for them and try again."),
 352                     total_capacity, slice_get_capacity(storage_get_selected_slice(a->s)));
 353                 return(0);
 354         }
 355
 356         if (warn_smallpart)
 357                 return (confirm_dangerous_action(a->c,
 358                     _("WARNING: HAMMER filesystems less than 50GB are "
 359                     "not recommended!\n"
 360                     "You may have to run 'hammer prune-everything' and "
 361                     "'hammer reblock'\n"
 362                     "quite often, even if using a nohistory mount.")));
 363
 364         return(1);
 365 }
 366
 367 static int
 368 check_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
 369 {
 370         struct dfui_dataset *ds;
 371         struct dfui_dataset *star_ds = NULL;
 372         struct aura_dict *d;
 373         const char *mountpoint, *capstring;
 374         long capacity = 0;
 375         int found_root = 0;
 376         int valid = 1;
 377
 378         d = aura_dict_new(1, AURA_DICT_LIST);
 379
 380         if ((ds = dfui_response_dataset_get_first(r)) == NULL) {
 381                 inform(a->c, _("Please set up at least one subpartition."));
 382                 valid = 0;
 383         }
 384
 385         for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
 386             ds = dfui_dataset_get_next(ds)) {
 387 #ifdef DEBUG
 388                 dfui_dataset_dump(ds);
 389 #endif
 390                 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
 391                 capstring = dfui_dataset_get_value(ds, "capacity");
 392
 393                 if (aura_dict_exists(d, mountpoint, strlen(mountpoint) + 1)) {
 394                         inform(a->c, _("The same mount point cannot be specified "
 395                             "for two different subpartitions."));
 396                         valid = 0;
 397                 }
 398
 399                 if (strcmp(mountpoint, "/") == 0)
 400                         found_root = 1;
 401
 402                 if (strcmp(capstring, "*") == 0) {
 403                         if (star_ds != NULL) {
 404                                 inform(a->c, _("You cannot have more than one subpartition "
 405                                     "with a '*' capacity (meaning 'use the remainder "
 406                                     "of the primary partition'.)"));
 407                                 valid = 0;
 408                         } else {
 409                                 star_ds = ds;
 410                         }
 411                 }
 412
 413                 if (!(!strcasecmp(mountpoint, "swap") || mountpoint[0] == '/')) {
 414                         inform(a->c, _("Mount point must be either 'swap', or it must "
 415                             "start with a '/'."));
 416                         valid = 0;
 417                 }
 418
 419                 if (strpbrk(mountpoint, " \\\"'`") != NULL) {
 420                         inform(a->c, _("Mount point may not contain the following "
 421                             "characters: blank space, backslash, or "
 422                             "single, double, or back quotes."));
 423                         valid = 0;
 424                 }
 425
 426                 if (strlen(capstring) == 0) {
 427                         inform(a->c, _("A capacity must be specified."));
 428                         valid = 0;
 429                 }
 430
 431                 if (!string_to_capacity(capstring, &capacity)) {
 432                         inform(a->c, _("Capacity must be either a '*' symbol to indicate "
 433                             "'use the rest of the primary partition', or it "
 434                             "must be a series of decimal digits ending with a "
 435                             "'M' (indicating megabytes) or a 'G' (indicating "
 436                             "gigabytes.)"));
 437                         valid = 0;
 438                 }
 439
 440                 if ((strcasecmp(mountpoint, "swap") == 0) && (capacity > 8192)) {
 441                         inform(a->c, _("Swap capacity is limited to 8G."));
 442                         valid = 0;
 443                 }
 444
 445                 /*
 446                  * If we made it through that obstacle course, all is well.
 447                  */
 448
 449                 if (valid)
 450                         aura_dict_store(d, mountpoint, strlen(mountpoint) + 1, "", 1);
 451         }
 452
 453         if (!found_root) {
 454                 inform(a->c, _("You must include a / (root) subpartition."));
 455                 valid = 0;
 456         }
 457
 458         if (aura_dict_size(d) > 16) {
 459                 inform(a->c, _("You cannot have more than 16 subpartitions "
 460                     "on a single primary partition.  Remove some "
 461                     "and try again."));
 462                 valid = 0;
 463         }
 464
 465         aura_dict_free(d);
 466
 467         return(valid);
 468 }
 469
 470 static void
 471 save_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
 472 {
 473         struct dfui_dataset *ds;
 474         const char *mountpoint, *capstring;
 475         long capacity;
 476         int valid = 1;
 477
 478         subpartitions_free(storage_get_selected_slice(a->s));
 479
 480         for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
 481             ds = dfui_dataset_get_next(ds)) {
 482                 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
 483                 capstring = dfui_dataset_get_value(ds, "capacity");
 484
 485                 if (string_to_capacity(capstring, &capacity)) {
 486                         subpartition_new_hammer(storage_get_selected_slice(a->s),
 487                             mountpoint, capacity,
 488                             strcasecmp(dfui_dataset_get_value(ds, "encrypted"), "Y") == 0);
 489                 }
 490         }
 491 }
 492
 493 static void
 494 populate_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
 495 {
 496         struct subpartition *sp;
 497         struct dfui_dataset *ds;
 498         int i;
 499         long capacity;
 500
 501         if (slice_subpartition_first(storage_get_selected_slice(a->s)) != NULL) {
 502                 /*
 503                  * The user has already given us their subpartition
 504                  * preferences, so use them here.
 505                  */
 506                 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 507                      sp != NULL; sp = subpartition_next(sp)) {
 508                         ds = dfui_dataset_new();
 509                         dfui_dataset_celldata_add(ds, "mountpoint",
 510                             subpartition_get_mountpoint(sp));
 511                         dfui_dataset_celldata_add(ds, "capacity",
 512                             capacity_to_string(subpartition_get_capacity(sp)));
 513                         dfui_dataset_celldata_add(ds, "encrypted",
 514                             subpartition_is_encrypted(sp) ? "Y" : "N");
 515                         dfui_form_dataset_add(f, ds);
 516                 }
 517         } else {
 518                 /*
 519                  * Otherwise, populate the form with datasets representing
 520                  * reasonably-calculated defaults.  The defaults are chosen
 521                  * based on the slice's total capacity and the machine's
 522                  * total physical memory (for swap.)
 523                  */
 524                 for (i = 0; def_mountpt[i] != NULL; i++) {
 525                         capacity = default_capacity(a->s, def_mountpt[i]);
 526                         ds = dfui_dataset_new();
 527                         dfui_dataset_celldata_add(ds, "mountpoint",
 528                             def_mountpt[i]);
 529                         dfui_dataset_celldata_add(ds, "capacity",
 530                             capacity_to_string(capacity));
 531                         dfui_dataset_celldata_add(ds, "encrypted", "N");
 532                         dfui_form_dataset_add(f, ds);
 533                 }
 534         }
 535 }
 536
 537 static int
 538 warn_subpartition_selections(struct i_fn_args *a)
 539 {
 540         int valid = 0;
 541
 542         if (subpartition_find(storage_get_selected_slice(a->s), "/boot") == NULL) {
 543                 inform(a->c, _("The /boot partition must not be omitted."));
 544         } else if (subpartition_find(storage_get_selected_slice(a->s), "/home") != NULL ||
 545             subpartition_find(storage_get_selected_slice(a->s), "/tmp") != NULL ||
 546             subpartition_find(storage_get_selected_slice(a->s), "/usr") != NULL ||
 547             subpartition_find(storage_get_selected_slice(a->s), "/usr/obj") != NULL ||
 548             subpartition_find(storage_get_selected_slice(a->s), "/var") != NULL ||
 549             subpartition_find(storage_get_selected_slice(a->s), "/var/crash") != NULL ||
 550             subpartition_find(storage_get_selected_slice(a->s), "/var/tmp") != NULL) {
 551                 inform(a->c, _("Pseudo filesystems will automatically be created "
 552                         "for /home, /tmp, /usr, /usr/obj, /var, /var/crash "
 553                         "and /var/tmp and must not be specified."));
 554         } else {
 555                 valid = check_capacity(a);
 556         }
 557
 558         return(!valid);
 559 }
 560
 561 static int
 562 warn_encrypted_boot(struct i_fn_args *a)
 563 {
 564         int valid = 1;
 565
 566         struct subpartition *sp;
 567
 568         sp = subpartition_find(storage_get_selected_slice(a->s), "/boot");
 569         if (sp == NULL)
 570                 return(!valid);
 571
 572         if (subpartition_is_encrypted(sp)) {
 573                 switch (dfui_be_present_dialog(a->c, _("/boot cannot be encrypted"),
 574                     _("Leave /boot unencrypted|Return to Create Subpartitions"),
 575                     _("You have selected encryption for the /boot partition which "
 576                     "is not supported."))) {
 577                 case 1:
 578                         subpartition_clr_encrypted(sp);
 579                         valid = 1;
 580                         break;
 581                 case 2:
 582                         valid = 0;
 583                         break;
 584                 default:
 585                         abort_backend();
 586                 }
 587         }
 588
 589         return(!valid);
 590 }
 591
 592 static struct dfui_form *
 593 make_create_subpartitions_form(struct i_fn_args *a)
 594 {
 595         struct dfui_form *f;
 596         char msg_buf[1][1024];
 597
 598         snprintf(msg_buf[0], sizeof(msg_buf[0]),
 599             _("Subpartitions further divide a primary partition for "
 600             "use with %s.  Some reasons you may want "
 601             "a set of subpartitions are:\n\n"
 602             "- you want to restrict how much data can be written "
 603             "to certain parts of the primary partition, to quell "
 604             "denial-of-service attacks; and\n"
 605             "- you want to speed up access to data on the disk."
 606             ""), OPERATING_SYSTEM_NAME);
 607
 608         f = dfui_form_create(
 609             "create_subpartitions",
 610             _("Create Subpartitions"),
 611             _("Set up the subpartitions (also known as just `partitions' "
 612             "in BSD tradition) you want to have on this primary "
 613             "partition. In most cases you should be fine with "
 614             "the default settings.\n\n"
 615             "For Capacity, use 'M' to indicate megabytes, 'G' to "
 616             "indicate gigabytes, or a single '*' to indicate "
 617             "'use the remaining space on the primary partition'."),
 618
 619             msg_buf[0],
 620
 621             "p", "special", "dfinstaller_create_subpartitions",
 622             "p", "minimum_width","64",
 623
 624             "f", "mountpoint", _("Mountpoint"), "", "",
 625             "f", "capacity", _("Capacity"), "", "",
 626
 627             "f", "encrypted", _("Encrypted"), "", "",
 628             "p", "control", "checkbox",
 629
 630             "a", "ok", _("Accept and Create"), "", "",
 631             "a", "cancel",
 632             (disk_get_formatted(storage_get_selected_disk(a->s)) ?
 633             _("Return to Select Disk") :
 634             _("Return to Select Primary Partition")), "", "",
 635             "p", "accelerator", "ESC",
 636
 637             NULL
 638         );
 639
 640         dfui_form_set_multiple(f, 1);
 641         dfui_form_set_extensible(f, 1);
 642         /*
 643          * Remove ATM until HAMMER installer support is better
 644          * dfui_form_set_extensible(f, 1);
 645          */
 646 #if 0
 647         if (expert) {
 648                 fi = dfui_form_field_add(f, "softupdates",
 649                     dfui_info_new(_("Softupdates"), "", ""));
 650                 dfui_field_property_set(fi, "control", "checkbox");
 651
 652                 fi = dfui_form_field_add(f, "tmpfsbacked",
 653                     dfui_info_new(_("TMPFS"), "", ""));
 654                 dfui_field_property_set(fi, "control", "checkbox");
 655
 656                 fi = dfui_form_field_add(f, "fsize",
 657                     dfui_info_new(_("Frag Sz"), "", ""));
 658
 659                 fi = dfui_form_field_add(f, "bsize",
 660                     dfui_info_new(_("Block Sz"), "", ""));
 661
 662                 dfui_form_action_add(f, "switch",
 663                     dfui_info_new(_("Switch to Normal Mode"), "", ""));
 664         } else {
 665                 dfui_form_action_add(f, "switch",
 666                     dfui_info_new(_("Switch to Expert Mode"), "", ""));
 667         }
 668 #endif
 669         return(f);
 670 }
 671
 672 /*
 673  * Returns:
 674  *      -1 = the form should be redisplayed
 675  *       0 = failure, function is over
 676  *       1 = success, function is over
 677  */
 678 static int
 679 show_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
 680 {
 681         struct dfui_dataset *ds;
 682         struct dfui_response *r;
 683
 684         for (;;) {
 685                 if (dfui_form_dataset_get_first(f) == NULL)
 686                         populate_create_subpartitions_form(f, a);
 687
 688                 if (!dfui_be_present(a->c, f, &r))
 689                         abort_backend();
 690
 691                 if (strcmp(dfui_response_get_action_id(r), "cancel") == 0) {
 692                         dfui_response_free(r);
 693                         return(0);
 694                 } else if (strcmp(dfui_response_get_action_id(r), "switch") == 0) {
 695                         if (check_subpartition_selections(r, a)) {
 696                                 save_subpartition_selections(r, a);
 697                                 expert = expert ? 0 : 1;
 698                                 dfui_response_free(r);
 699                                 return(-1);
 700                         }
 701                 } else {
 702                         if (check_subpartition_selections(r, a)) {
 703                                 save_subpartition_selections(r, a);
 704                                 if (!warn_subpartition_selections(a) &&
 705                                     !warn_encrypted_boot(a)) {
 706                                         if (!create_subpartitions(a)) {
 707                                                 inform(a->c, _("The subpartitions you chose were "
 708                                                         "not correctly created, and the "
 709                                                         "primary partition may "
 710                                                         "now be in an inconsistent state. "
 711                                                         "We recommend re-formatting it "
 712                                                         "before proceeding."));
 713                                                 dfui_response_free(r);
 714                                                 return(0);
 715                                         } else {
 716                                                 dfui_response_free(r);
 717                                                 return(1);
 718                                         }
 719                                 }
 720                         }
 721                 }
 722
 723                 dfui_form_datasets_free(f);
 724                 /* dfui_form_datasets_add_from_response(f, r); */
 725                 for (ds = dfui_response_dataset_get_first(r); ds != NULL;
 726                     ds = dfui_dataset_get_next(ds)) {
 727                         dfui_form_dataset_add(f, dfui_dataset_dup(ds));
 728                 }
 729         }
 730 }
 731
 732 /*
 733  * fn_create_subpartitions_hammer: let the user specify what subpartitions they
 734  * want on the disk, how large each should be, and where it should be mounted.
 735  */
 736 void
 737 fn_create_subpartitions_hammer(struct i_fn_args *a)
 738 {
 739         struct dfui_form *f;
 740         int done = 0;
 741
 742         a->result = 0;
 743         while (!done) {
 744                 f = make_create_subpartitions_form(a);
 745                 switch (show_create_subpartitions_form(f, a)) {
 746                 case -1:
 747                         done = 0;
 748                         break;
 749                 case 0:
 750                         done = 1;
 751                         a->result = 0;
 752                         break;
 753                 case 1:
 754                         done = 1;
 755                         a->result = 1;
 756                         break;
 757                 }
 758                 dfui_form_free(f);
 759         }
 760 }