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 /dev/%s",
 212                                     a->os_root, cmd_name(a, "CRYPTSETUP"),
 213                                     subpartition_get_device_name(sp));
 214                                 command_add(cmds,
 215                                     "%s%s -d /tmp/t1 luksOpen /dev/%s swap",
 216                                     a->os_root, cmd_name(a, "CRYPTSETUP"),
 217                                     subpartition_get_device_name(sp));
 218                         }
 219                         continue;
 220                 }
 221
 222                 if (subpartition_is_encrypted(sp) &&
 223                     strcmp(subpartition_get_mountpoint(sp), "/") != 0) {
 224                         command_add(cmds,
 225                             "%s%s -d /tmp/t1 luksFormat /dev/%s",
 226                             a->os_root, cmd_name(a, "CRYPTSETUP"),
 227                             subpartition_get_device_name(sp));
 228                         command_add(cmds,
 229                             "%s%s -d /tmp/t1 luksOpen /dev/%s %s",
 230                             a->os_root, cmd_name(a, "CRYPTSETUP"),
 231                             subpartition_get_device_name(sp),
 232                             subpartition_get_mountpoint(sp) + 1);
 233                         command_add(cmds, "%s%s%s -b %ld -f %ld /dev/mapper/%s",
 234                             a->os_root, cmd_name(a, "NEWFS"),
 235                             subpartition_is_softupdated(sp) ? " -U" : "",
 236                             subpartition_get_bsize(sp),
 237                             subpartition_get_fsize(sp),
 238                             subpartition_get_mountpoint(sp) + 1);
 239                 } else {
 240                         command_add(cmds, "%s%s%s -b %ld -f %ld /dev/%s",
 241                             a->os_root, cmd_name(a, "NEWFS"),
 242                             subpartition_is_softupdated(sp) ? " -U" : "",
 243                             subpartition_get_bsize(sp),
 244                             subpartition_get_fsize(sp),
 245                             subpartition_get_device_name(sp));
 246                 }
 247         }
 248
 249         result = commands_execute(a, cmds);
 250         commands_free(cmds);
 251         return(result);
 252 }
 253
 254 static long
 255 default_capacity(struct storage *s, int mtpt)
 256 {
 257         unsigned long swap;
 258         unsigned long capacity;
 259         unsigned long mem;
 260
 261         if (mtpt == MTPT_HOME)
 262                 return(-1);
 263
 264         capacity = slice_get_capacity(storage_get_selected_slice(s));
 265         mem = storage_get_memsize(s);
 266         swap = 2 * mem;
 267         if (mem > (capacity / 2) || capacity < 4096)
 268                 swap = mem;
 269         if (mem > capacity)
 270                 swap = capacity / 2;
 271         if (swap > SWAP_MAX)
 272                 swap = SWAP_MAX;
 273
 274         if (capacity < DISK_MIN) {
 275                 /*
 276                  * For the purposes of this installer:
 277                  * can't be done.  Sorry.
 278                  */
 279                 return(-1);
 280         } else if (capacity < 4096) {
 281                 switch (mtpt) {
 282                 case MTPT_ROOT: return(320);
 283                 case MTPT_SWAP: return(swap);
 284                 case MTPT_VAR:  return(128);
 285                 case MTPT_TMP:  return(128);
 286                 case MTPT_USR:  return(1472);
 287                 }
 288         } else if (capacity < 10240) {
 289                 switch (mtpt) {
 290                 case MTPT_ROOT: return(640);
 291                 case MTPT_SWAP: return(swap);
 292                 case MTPT_VAR:  return(256);
 293                 case MTPT_TMP:  return(256);
 294                 case MTPT_USR:  return(2688);
 295                 }
 296         } else {
 297                 switch (mtpt) {
 298                 case MTPT_ROOT: return(768);
 299                 case MTPT_SWAP: return(swap);
 300                 case MTPT_VAR:  return(256);
 301                 case MTPT_TMP:  return(256);
 302                 case MTPT_USR:  return(7680);
 303                 }
 304         }
 305         /* shouldn't ever happen */
 306         return(-1);
 307 }
 308
 309 static int
 310 check_capacity(struct i_fn_args *a)
 311 {
 312         struct subpartition *sp;
 313         long min_capacity[] = {320, 0, 16, 0, 1472, 0, 0};
 314         unsigned long total_capacity = 0;
 315         int mtpt;
 316
 317         if (subpartition_find(storage_get_selected_slice(a->s), "/usr") == NULL)
 318                 min_capacity[MTPT_ROOT] += min_capacity[MTPT_USR];
 319
 320         for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 321              sp != NULL; sp = subpartition_next(sp)) {
 322                 long subpart_capacity = subpartition_get_capacity(sp);
 323                 const char *mountpt = subpartition_get_mountpoint(sp);
 324
 325                 if (subpart_capacity == -1)
 326                         total_capacity++;
 327                 else
 328                         total_capacity += subpart_capacity;
 329                 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
 330                         if (strcmp(mountpt, def_mountpt[mtpt]) == 0 &&
 331                             subpart_capacity < min_capacity[mtpt] &&
 332                             subpart_capacity != -1) {
 333                                 inform(a->c, _("WARNING: The size (%ldM) specified for "
 334                                     "the %s subpartition is too small. It "
 335                                     "should be at least %ldM or you will "
 336                                     "risk running out of space during "
 337                                     "the installation."),
 338                                     subpart_capacity, mountpt,
 339                                     min_capacity[mtpt]);
 340                         }
 341                 }
 342         }
 343
 344         if (total_capacity > slice_get_capacity(storage_get_selected_slice(a->s))) {
 345                 inform(a->c, _("The space allocated to all of your selected "
 346                     "subpartitions (%luM) exceeds the total "
 347                     "capacity of the selected primary partition "
 348                     "(%luM). Remove some subpartitions or choose "
 349                     "a smaller size for them and try again."),
 350                     total_capacity, slice_get_capacity(storage_get_selected_slice(a->s)));
 351                 return(0);
 352         }
 353
 354         return(1);
 355 }
 356
 357 static int
 358 check_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
 359 {
 360         struct dfui_dataset *ds;
 361         struct dfui_dataset *star_ds = NULL;
 362         struct aura_dict *d;
 363         const char *mountpoint, *capstring;
 364         long capacity = 0;
 365         int found_root = 0;
 366         int valid = 1;
 367
 368         d = aura_dict_new(1, AURA_DICT_LIST);
 369
 370         if ((ds = dfui_response_dataset_get_first(r)) == NULL) {
 371                 inform(a->c, _("Please set up at least one subpartition."));
 372                 valid = 0;
 373         }
 374
 375         for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
 376             ds = dfui_dataset_get_next(ds)) {
 377 #ifdef DEBUG
 378                 dfui_dataset_dump(ds);
 379 #endif
 380                 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
 381                 capstring = dfui_dataset_get_value(ds, "capacity");
 382
 383                 if (expert) {
 384                         int tmpfsbacked;
 385
 386                         tmpfsbacked = (strcmp(dfui_dataset_get_value(ds, "tmpfsbacked"), "Y") == 0);
 387                         if (tmpfsbacked && strcmp(mountpoint, "/") == 0) {
 388                                 inform(a->c, _("/ cannot be TMPFS backed."));
 389                                 valid = 0;
 390                         }
 391                 }
 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 "
 433                             "to indicate 'use the rest of the primary "
 434                             "partition', or it must be a series of decimal "
 435                             "digits ending with an 'M' (indicating "
 436                             "megabytes), a 'G' (indicating gigabytes) and "
 437                             "so on (up to 'E'.)"));
 438                         valid = 0;
 439                 }
 440
 441                 /*
 442                  * Maybe remove this limit entirely?
 443                  */
 444                 if ((strcasecmp(mountpoint, "swap") == 0) &&
 445                     (capacity > SWAP_MAX)) {
 446                         inform(a->c, _("Swap capacity is limited to %dG."),
 447                             SWAP_MAX / 1024);
 448                         valid = 0;
 449                 }
 450
 451                 /*
 452                  * If we made it through that obstacle course, all is well.
 453                  */
 454
 455                 if (valid)
 456                         aura_dict_store(d, mountpoint, strlen(mountpoint) + 1, "", 1);
 457         }
 458
 459         if (!found_root) {
 460                 inform(a->c, _("You must include a / (root) subpartition."));
 461                 valid = 0;
 462         }
 463
 464         if (aura_dict_size(d) > 16) {
 465                 inform(a->c, _("You cannot have more than 16 subpartitions "
 466                     "on a single primary partition.  Remove some "
 467                     "and try again."));
 468                 valid = 0;
 469         }
 470
 471         aura_dict_free(d);
 472
 473         return(valid);
 474 }
 475
 476 static void
 477 save_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
 478 {
 479         struct dfui_dataset *ds;
 480         char tmpfsbacked;
 481         const char *mountpoint, *capstring;
 482         long capacity;
 483         long bsize, fsize;
 484         int softupdates;
 485         int valid = 1;
 486
 487         subpartitions_free(storage_get_selected_slice(a->s));
 488
 489         for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
 490             ds = dfui_dataset_get_next(ds)) {
 491                 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
 492                 capstring = dfui_dataset_get_value(ds, "capacity");
 493
 494                 if (expert) {
 495                         softupdates =
 496                             (strcmp(dfui_dataset_get_value(ds, "softupdates"), "Y") == 0);
 497                         fsize = atol(dfui_dataset_get_value(ds, "fsize"));
 498                         bsize = atol(dfui_dataset_get_value(ds, "bsize"));
 499                         tmpfsbacked = (strcmp(dfui_dataset_get_value(ds, "tmpfsbacked"), "Y") == 0);
 500                 } else {
 501                         softupdates = (strcmp(mountpoint, "/") == 0 ? 0 : 1);
 502                         tmpfsbacked = 0;
 503                         fsize = -1;
 504                         bsize = -1;
 505                 }
 506
 507                 if (string_to_capacity(capstring, &capacity)) {
 508                         subpartition_new_ufs(storage_get_selected_slice(a->s),
 509                             mountpoint, capacity,
 510                             strcasecmp(dfui_dataset_get_value(ds, "encrypted"), "Y") == 0,
 511                             softupdates, fsize, bsize, tmpfsbacked);
 512                 }
 513         }
 514 }
 515
 516 static void
 517 populate_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
 518 {
 519         struct subpartition *sp;
 520         struct dfui_dataset *ds;
 521         char temp[32];
 522         int mtpt;
 523         long capacity;
 524
 525         if (slice_subpartition_first(storage_get_selected_slice(a->s)) != NULL) {
 526                 /*
 527                  * The user has already given us their subpartition
 528                  * preferences, so use them here.
 529                  */
 530                 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
 531                      sp != NULL; sp = subpartition_next(sp)) {
 532                         ds = dfui_dataset_new();
 533                         dfui_dataset_celldata_add(ds, "mountpoint",
 534                             subpartition_get_mountpoint(sp));
 535                         dfui_dataset_celldata_add(ds, "capacity",
 536                             capacity_to_string(subpartition_get_capacity(sp)));
 537                         dfui_dataset_celldata_add(ds, "encrypted",
 538                             subpartition_is_encrypted(sp) ? "Y" : "N");
 539                         if (expert) {
 540                                 dfui_dataset_celldata_add(ds, "softupdates",
 541                                     subpartition_is_softupdated(sp) ? "Y" : "N");
 542                                 dfui_dataset_celldata_add(ds, "tmpfsbacked",
 543                                     subpartition_is_tmpfsbacked(sp) ? "Y" : "N");
 544                                 snprintf(temp, 32, "%ld", subpartition_get_fsize(sp));
 545                                 dfui_dataset_celldata_add(ds, "fsize",
 546                                     temp);
 547                                 snprintf(temp, 32, "%ld", subpartition_get_bsize(sp));
 548                                 dfui_dataset_celldata_add(ds, "bsize",
 549                                     temp);
 550                         }
 551                         dfui_form_dataset_add(f, ds);
 552                 }
 553         } else {
 554                 /*
 555                  * Otherwise, populate the form with datasets representing
 556                  * reasonably-calculated defaults.  The defaults are chosen
 557                  * based on the slice's total capacity and the machine's
 558                  * total physical memory (for swap.)
 559                  */
 560                 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
 561                         capacity = default_capacity(a->s, mtpt);
 562                         ds = dfui_dataset_new();
 563                         dfui_dataset_celldata_add(ds, "mountpoint",
 564                             def_mountpt[mtpt]);
 565                         dfui_dataset_celldata_add(ds, "capacity",
 566                             capacity_to_string(capacity));
 567                         dfui_dataset_celldata_add(ds, "encrypted", "N");
 568                         if (expert) {
 569                                 dfui_dataset_celldata_add(ds, "softupdates",
 570                                     strcmp(def_mountpt[mtpt], "/") != 0 ? "Y" : "N");
 571                                 dfui_dataset_celldata_add(ds, "tmpfsbacked",
 572                                     "N");
 573                                 dfui_dataset_celldata_add(ds, "fsize",
 574                                     capacity < 1024 ? "1024" : "2048");
 575                                 dfui_dataset_celldata_add(ds, "bsize",
 576                                     capacity < 1024 ? "8192" : "16384");
 577                         }
 578                         dfui_form_dataset_add(f, ds);
 579                 }
 580         }
 581 }
 582
 583 static int
 584 warn_subpartition_selections(struct i_fn_args *a)
 585 {
 586         int valid = 0;
 587         struct aura_buffer *omit, *consequences;
 588
 589         omit = aura_buffer_new(2048);
 590         consequences = aura_buffer_new(2048);
 591
 592         valid = check_capacity(a);
 593         if (subpartition_find(storage_get_selected_slice(a->s), "/var") == NULL) {
 594                 aura_buffer_cat(omit, "/var ");
 595                 aura_buffer_cat(consequences, _("/var will be a plain dir in /\n"));
 596         }
 597         if (subpartition_find(storage_get_selected_slice(a->s), "/usr") == NULL) {
 598                 aura_buffer_cat(omit, "/usr ");
 599                 aura_buffer_cat(consequences, _("/usr will be a plain dir in /\n"));
 600         }
 601         if (subpartition_find(storage_get_selected_slice(a->s), "/tmp") == NULL) {
 602                 aura_buffer_cat(omit, "/tmp ");
 603                 aura_buffer_cat(consequences, _("/tmp will be symlinked to /var/tmp\n"));
 604         }
 605         if (subpartition_find(storage_get_selected_slice(a->s), "/home") == NULL) {
 606                 aura_buffer_cat(omit, "/home ");
 607                 aura_buffer_cat(consequences, _("/home will be symlinked to /usr/home\n"));
 608         }
 609
 610         if (valid && aura_buffer_len(omit) > 0) {
 611                 switch (dfui_be_present_dialog(a->c, _("Really omit?"),
 612                     _("Omit Subpartition(s)|Return to Create Subpartitions"),
 613                     _("You have elected to not have the following "
 614                     "subpartition(s):\n\n%s\n\n"
 615                     "The ramifications of these subpartition(s) being "
 616                     "missing will be:\n\n%s\n"
 617                     "Is this really what you want to do?"),
 618                     aura_buffer_buf(omit), aura_buffer_buf(consequences))) {
 619                 case 1:
 620                         valid = 1;
 621                         break;
 622                 case 2:
 623                         valid = 0;
 624                         break;
 625                 default:
 626                         abort_backend();
 627                 }
 628         }
 629
 630         aura_buffer_free(omit);
 631         aura_buffer_free(consequences);
 632
 633         return(!valid);
 634 }
 635
 636 static int
 637 warn_encrypted_root(struct i_fn_args *a)
 638 {
 639         int valid = 1;
 640         struct subpartition *sp;
 641
 642         sp = subpartition_find(storage_get_selected_slice(a->s), "/");
 643         if (sp == NULL)
 644                 return(!valid);
 645
 646         if (subpartition_is_encrypted(sp)) {
 647                 switch (dfui_be_present_dialog(a->c, _("root cannot be encrypted"),
 648                     _("Leave root unencrypted|Return to Create Subpartitions"),
 649                     _("You have selected encryption for the root partition which "
 650                     "is not supported."))) {
 651                 case 1:
 652                         subpartition_clr_encrypted(sp);
 653                         valid = 1;
 654                         break;
 655                 case 2:
 656                         valid = 0;
 657                         break;
 658                 default:
 659                         abort_backend();
 660                 }
 661         }
 662
 663         return(!valid);
 664 }
 665
 666 static struct dfui_form *
 667 make_create_subpartitions_form(struct i_fn_args *a)
 668 {
 669         struct dfui_field *fi;
 670         struct dfui_form *f;
 671         char msg_buf[1][1024];
 672
 673         snprintf(msg_buf[0], sizeof(msg_buf[0]),
 674             _("Subpartitions further divide a primary partition for "
 675             "use with %s.  Some reasons you may want "
 676             "a set of subpartitions are:\n\n"
 677             "- you want to restrict how much data can be written "
 678             "to certain parts of the primary partition, to quell "
 679             "denial-of-service attacks; and\n"
 680             "- you want to speed up access to data on the disk."
 681             ""), OPERATING_SYSTEM_NAME);
 682
 683         f = dfui_form_create(
 684             "create_subpartitions",
 685             _("Create Subpartitions"),
 686             _("Set up the subpartitions (also known as just `partitions' "
 687             "in BSD tradition) you want to have on this primary "
 688             "partition.\n\n"
 689             "For Capacity, use 'M' to indicate megabytes, 'G' to "
 690             "indicate gigabytes, and so on (up to 'E'.) A single '*' "
 691             "indicates 'use the remaining space on the primary partition'."),
 692
 693             msg_buf[0],
 694
 695             "p", "special", "dfinstaller_create_subpartitions",
 696             "p", "minimum_width","64",
 697
 698             "f", "mountpoint", _("Mountpoint"), "", "",
 699             "f", "capacity", _("Capacity"), "", "",
 700
 701             "f", "encrypted", _("Encrypted"), "", "",
 702             "p", "control", "checkbox",
 703
 704             "a", "ok", _("Accept and Create"), "", "",
 705             "a", "cancel",
 706             (disk_get_formatted(storage_get_selected_disk(a->s)) ?
 707             _("Return to Select Disk") :
 708             _("Return to Select Primary Partition")), "", "",
 709             "p", "accelerator", "ESC",
 710
 711             NULL
 712         );
 713
 714         dfui_form_set_multiple(f, 1);
 715         dfui_form_set_extensible(f, 1);
 716
 717         if (expert) {
 718                 fi = dfui_form_field_add(f, "softupdates",
 719                     dfui_info_new(_("Softupdates"), "", ""));
 720                 dfui_field_property_set(fi, "control", "checkbox");
 721
 722                 fi = dfui_form_field_add(f, "tmpfsbacked",
 723                     dfui_info_new(_("TMPFS"), "", ""));
 724                 dfui_field_property_set(fi, "control", "checkbox");
 725
 726                 fi = dfui_form_field_add(f, "fsize",
 727                     dfui_info_new(_("Frag Sz"), "", ""));
 728
 729                 fi = dfui_form_field_add(f, "bsize",
 730                     dfui_info_new(_("Block Sz"), "", ""));
 731
 732                 dfui_form_action_add(f, "switch",
 733                     dfui_info_new(_("Switch to Normal Mode"), "", ""));
 734         } else {
 735                 dfui_form_action_add(f, "switch",
 736                     dfui_info_new(_("Switch to Expert Mode"), "", ""));
 737         }
 738
 739         return(f);
 740 }
 741
 742 /*
 743  * Returns:
 744  *      -1 = the form should be redisplayed
 745  *       0 = failure, function is over
 746  *       1 = success, function is over
 747  */
 748 static int
 749 show_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
 750 {
 751         struct dfui_dataset *ds;
 752         struct dfui_response *r;
 753
 754         for (;;) {
 755                 if (dfui_form_dataset_get_first(f) == NULL)
 756                         populate_create_subpartitions_form(f, a);
 757
 758                 if (!dfui_be_present(a->c, f, &r))
 759                         abort_backend();
 760
 761                 if (strcmp(dfui_response_get_action_id(r), "cancel") == 0) {
 762                         dfui_response_free(r);
 763                         return(0);
 764                 } else if (strcmp(dfui_response_get_action_id(r), "switch") == 0) {
 765                         if (check_subpartition_selections(r, a)) {
 766                                 save_subpartition_selections(r, a);
 767                                 expert = expert ? 0 : 1;
 768                                 dfui_response_free(r);
 769                                 return(-1);
 770                         }
 771                 } else {
 772                         if (check_subpartition_selections(r, a)) {
 773                                 save_subpartition_selections(r, a);
 774                                 if (!warn_subpartition_selections(a) &&
 775                                     !warn_encrypted_root(a)) {
 776                                         if (!create_subpartitions(a)) {
 777                                                 inform(a->c, _("The subpartitions you chose were "
 778                                                         "not correctly created, and the "
 779                                                         "primary partition may "
 780                                                         "now be in an inconsistent state. "
 781                                                         "We recommend re-formatting it "
 782                                                         "before proceeding."));
 783                                                 dfui_response_free(r);
 784                                                 return(0);
 785                                         } else {
 786                                                 dfui_response_free(r);
 787                                                 return(1);
 788                                         }
 789                                 }
 790                         }
 791                 }
 792
 793                 dfui_form_datasets_free(f);
 794                 /* dfui_form_datasets_add_from_response(f, r); */
 795                 for (ds = dfui_response_dataset_get_first(r); ds != NULL;
 796                     ds = dfui_dataset_get_next(ds)) {
 797                         dfui_form_dataset_add(f, dfui_dataset_dup(ds));
 798                 }
 799         }
 800 }
 801
 802 void
 803 fn_create_subpartitions_ufs(struct i_fn_args *a)
 804 {
 805         struct dfui_form *f;
 806         int done = 0;
 807
 808         a->result = 0;
 809         while (!done) {
 810                 f = make_create_subpartitions_form(a);
 811                 switch (show_create_subpartitions_form(f, a)) {
 812                 case -1:
 813                         done = 0;
 814                         break;
 815                 case 0:
 816                         done = 1;
 817                         a->result = 0;
 818                         break;
 819                 case 1:
 820                         done = 1;
 821                         a->result = 1;
 822                         break;
 823                 }
 824                 dfui_form_free(f);
 825         }
 826 }