2 * Copyright (c)2004 The DragonFly Project. All rights reserved.
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5 * modification, are permitted provided that the following conditions
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21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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36 * Installer Function : Create Subpartitions.
37 * $Id: fn_subpart.c,v 1.50 2005/04/07 20:22:40 cpressey Exp $
46 #define _(String) gettext (String)
48 #define _(String) (String)
51 #include "libaura/mem.h"
52 #include "libaura/buffer.h"
53 #include "libaura/dict.h"
54 #include "libaura/fspred.h"
56 #include "libdfui/dfui.h"
57 #include "libdfui/dump.h"
58 #include "libdfui/system.h"
60 #include "libinstaller/commands.h"
61 #include "libinstaller/diskutil.h"
62 #include "libinstaller/functions.h"
63 #include "libinstaller/uiutil.h"
67 #include "pathnames.h"
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 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 *);
79 static const char *def_mountpt[7] = {"/", "swap", "/var", "/tmp", "/usr", "/home", NULL};
80 static long def_capacity[7] = {128, 128, 128, 128, 256, -1, 0};
82 static int expert = 0;
85 * Given a set of subpartitions-to-be in the selected slice,
89 create_subpartitions(struct i_fn_args *a)
91 struct subpartition *sp;
92 struct commands *cmds;
94 int copied_original = 0;
97 cmds = commands_new();
98 if (!is_file("%sinstall.disklabel.%s",
100 slice_get_device_name(storage_get_selected_slice(a->s)))) {
102 * Get a copy of the 'virgin' disklabel.
103 * XXX It might make more sense for this to
104 * happen right after format_slice() instead.
106 command_add(cmds, "%s%s -r %s >%sinstall.disklabel.%s",
107 a->os_root, cmd_name(a, "DISKLABEL"),
108 slice_get_device_name(storage_get_selected_slice(a->s)),
110 slice_get_device_name(storage_get_selected_slice(a->s)));
114 * Weave together a new disklabel out the of the 'virgin'
115 * disklabel, and the user's subpartition choices.
119 * Take everything from the 'virgin' disklabel up until the
120 * '16 partitions' line.
123 command_add(cmds, "%s%s '$2==\"partitions:\" || cut { cut = 1 } !cut { print $0 }' <%sinstall.disklabel.%s >%sinstall.disklabel",
124 a->os_root, cmd_name(a, "AWK"),
126 slice_get_device_name(storage_get_selected_slice(a->s)),
131 * # size offset fstype
132 * c: 16383969 0 unused # 7999.985MB
135 command_add(cmds, "%s%s '%d partitions:' >>%sinstall.disklabel",
136 a->os_root, cmd_name(a, "ECHO"), num_partitions ,a->tmp);
137 command_add(cmds, "%s%s '%s' >>%sinstall.disklabel",
138 a->os_root, cmd_name(a, "ECHO"),
139 "# size offset fstype",
143 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
144 sp != NULL; sp = subpartition_next(sp)) {
145 command_add(cmds, "%s%s 'mountpoint: %s device: %s'",
146 a->os_root, cmd_name(a, "ECHO"),
147 subpartition_get_mountpoint(sp),
148 subpartition_get_device_name(sp));
153 * Write a line for each subpartition the user wants.
155 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
156 sp != NULL; sp = subpartition_next(sp)) {
157 if (subpartition_is_mfsbacked(sp)) {
160 if (subpartition_get_letter(sp) > 'c' && !copied_original) {
162 * Copy the 'c' line from the 'virgin' disklabel.
164 command_add(cmds, "%s%s '^ c:' %sinstall.disklabel.%s >>%sinstall.disklabel",
165 a->os_root, cmd_name(a, "GREP"),
167 slice_get_device_name(storage_get_selected_slice(a->s)),
171 if (subpartition_is_swap(sp)) {
172 command_add(cmds, "%s%s ' %c:\t%s\t*\tswap' >>%sinstall.disklabel",
173 a->os_root, cmd_name(a, "ECHO"),
174 subpartition_get_letter(sp),
175 capacity_to_string(subpartition_get_capacity(sp)),
178 command_add(cmds, "%s%s ' %c:\t%s\t%s\t4.2BSD' >>%sinstall.disklabel",
179 a->os_root, cmd_name(a, "ECHO"),
180 subpartition_get_letter(sp),
181 capacity_to_string(subpartition_get_capacity(sp)),
182 subpartition_get_letter(sp) == 'a' ? "0" : "*",
186 if (!copied_original) {
188 * Copy the 'c' line from the 'virgin' disklabel,
189 * if we haven't yet (less than 2 subpartitions.)
191 command_add(cmds, "%s%s '^ c:' %sinstall.disklabel.%s >>%sinstall.disklabel",
192 a->os_root, cmd_name(a, "GREP"),
194 slice_get_device_name(storage_get_selected_slice(a->s)),
197 temp_file_add(a, "install.disklabel");
200 * Label the slice from the disklabel we just wove together.
202 command_add(cmds, "%s%s -R -B -r %s %sinstall.disklabel",
203 a->os_root, cmd_name(a, "DISKLABEL"),
204 slice_get_device_name(storage_get_selected_slice(a->s)),
208 * Create a snapshot of the disklabel we just created
209 * for debugging inspection in the log.
211 command_add(cmds, "%s%s %s",
212 a->os_root, cmd_name(a, "DISKLABEL"),
213 slice_get_device_name(storage_get_selected_slice(a->s)));
216 * Create filesystems on the newly-created subpartitions.
218 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
219 sp != NULL; sp = subpartition_next(sp)) {
220 if (subpartition_is_swap(sp) || subpartition_is_mfsbacked(sp))
224 * Ensure that all the needed device nodes exist.
226 command_add_ensure_dev(a, cmds,
227 disk_get_device_name(storage_get_selected_disk(a->s)));
228 command_add_ensure_dev(a, cmds,
229 slice_get_device_name(storage_get_selected_slice(a->s)));
230 command_add_ensure_dev(a, cmds,
231 subpartition_get_device_name(sp));
233 command_add(cmds, "%s%s%s -b %ld -f %ld %sdev/%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),
239 subpartition_get_device_name(sp));
242 result = commands_execute(a, cmds);
248 * +-------+------------+--------------+-----------------+-----------------+
249 * | Mtpt | Matt says | FreeBSD says | I got away with | A tiny system |
250 * +-------+------------+--------------+-----------------+-----------------+
251 * | / | 256M | 100M | 256M | 64M |
252 * | swap | 1G | 2 or 3 * mem | (4 * mem) 256M | (1 * mem) 64M |
253 * | /var | 256M | 50M | 256M | 12M |
254 * | /tmp | 256M | --- | 256M | --- |
255 * | /usr | [4G to] 8G | (>160M) rest | 5G | 160M |
256 * | /home | rest | --- | 3.5G | --- |
257 * +-------+------------+--------------+-----------------+-----------------+
258 * | total | 10G+ | ~430M+ | 9.5G | 300M |
259 * +-------+------------+--------------+-----------------+-----------------+
263 default_capacity(struct storage *s, int mtpt)
266 unsigned long capacity;
268 if (mtpt == MTPT_HOME)
271 capacity = slice_get_capacity(storage_get_selected_slice(s));
272 swap = 2 * storage_get_memsize(s);
273 if (storage_get_memsize(s) > (capacity / 2) || capacity < 4096)
274 swap = storage_get_memsize(s);
276 if (capacity < DISK_MIN) {
278 * For the purposes of this installer:
279 * can't be done. Sorry.
282 } else if (capacity < 523) {
284 case MTPT_ROOT: return(70);
285 case MTPT_SWAP: return(swap);
286 case MTPT_VAR: return(32);
287 case MTPT_TMP: return(32);
288 case MTPT_USR: return(174);
290 } else if (capacity < 1024) {
292 case MTPT_ROOT: return(96);
293 case MTPT_SWAP: return(swap);
294 case MTPT_VAR: return(64);
295 case MTPT_TMP: return(64);
296 case MTPT_USR: return(256);
298 } else if (capacity < 4096) {
300 case MTPT_ROOT: return(128);
301 case MTPT_SWAP: return(swap);
302 case MTPT_VAR: return(128);
303 case MTPT_TMP: return(128);
304 case MTPT_USR: return(512);
306 } else if (capacity < 10240) {
308 case MTPT_ROOT: return(256);
309 case MTPT_SWAP: return(swap);
310 case MTPT_VAR: return(256);
311 case MTPT_TMP: return(256);
312 case MTPT_USR: return(3072);
316 case MTPT_ROOT: return(256);
317 case MTPT_SWAP: return(swap);
318 case MTPT_VAR: return(256);
319 case MTPT_TMP: return(256);
320 case MTPT_USR: return(8192);
323 /* shouldn't ever happen */
328 check_capacity(struct i_fn_args *a)
330 struct subpartition *sp;
331 unsigned long min_capacity[7] = {70, 0, 8, 0, 174, 0, 0};
332 unsigned long total_capacity = 0;
335 if (subpartition_find(storage_get_selected_slice(a->s), "/usr") == NULL)
336 min_capacity[MTPT_ROOT] += min_capacity[MTPT_USR];
338 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
339 sp != NULL; sp = subpartition_next(sp)) {
340 if (subpartition_get_capacity(sp) == -1)
343 total_capacity += subpartition_get_capacity(sp);
344 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
345 if (strcmp(subpartition_get_mountpoint(sp), def_mountpt[mtpt]) == 0 &&
346 min_capacity[mtpt] > 0 &&
347 subpartition_get_capacity(sp) < min_capacity[mtpt]) {
348 inform(a->c, _("WARNING: the %s subpartition should "
349 "be at least %dM in size or you will "
350 "risk running out of space during "
351 "the installation."),
352 subpartition_get_mountpoint(sp), min_capacity[mtpt]);
357 if (total_capacity > slice_get_capacity(storage_get_selected_slice(a->s))) {
358 inform(a->c, _("The space allocated to all of your selected "
359 "subpartitions (%dM) exceeds the total "
360 "capacity of the selected primary partition "
361 "(%dM). Remove some subpartitions or choose "
362 "a smaller size for them and try again."),
363 total_capacity, slice_get_capacity(storage_get_selected_slice(a->s)));
371 check_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
373 struct dfui_dataset *ds;
374 struct dfui_dataset *star_ds = NULL;
376 const char *mountpoint, *capstring;
380 int softupdates, mfsbacked;
383 d = aura_dict_new(1, AURA_DICT_LIST);
385 if ((ds = dfui_response_dataset_get_first(r)) == NULL) {
386 inform(a->c, _("Please set up at least one subpartition."));
390 for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
391 ds = dfui_dataset_get_next(ds)) {
393 dfui_dataset_dump(ds);
395 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
396 capstring = dfui_dataset_get_value(ds, "capacity");
400 (strcmp(dfui_dataset_get_value(ds, "softupdates"), "Y") == 0);
401 fsize = atol(dfui_dataset_get_value(ds, "fsize"));
402 bsize = atol(dfui_dataset_get_value(ds, "bsize"));
403 mfsbacked = (strcmp(dfui_dataset_get_value(ds, "mfsbacked"), "Y") == 0);
405 softupdates = (strcmp(mountpoint, "/") == 0 ? 0 : 1);
406 mfsbacked = (strcmp(mountpoint, "/tmp") == 0 ? 0 : 1);
411 if (aura_dict_exists(d, mountpoint, strlen(mountpoint) + 1)) {
412 inform(a->c, _("The same mount point cannot be specified "
413 "for two different subpartitions."));
417 if (strcmp(mountpoint, "/") == 0)
420 if (strcmp(capstring, "*") == 0) {
421 if (star_ds != NULL) {
422 inform(a->c, _("You cannot have more than one subpartition "
423 "with a '*' capacity (meaning 'use the remainder "
424 "of the primary partition'.)"));
431 if (!(!strcasecmp(mountpoint, "swap") || mountpoint[0] == '/')) {
432 inform(a->c, _("Mount point must be either 'swap', or it must "
433 "start with a '/'."));
437 if (strpbrk(mountpoint, " \\\"'`") != NULL) {
438 inform(a->c, _("Mount point may not contain the following "
439 "characters: blank space, backslash, or "
440 "single, double, or back quotes."));
444 if (strlen(capstring) == 0) {
445 inform(a->c, _("A capacity must be specified."));
449 if (!string_to_capacity(capstring, &capacity)) {
450 inform(a->c, _("Capacity must be either a '*' symbol to indicate "
451 "'use the rest of the primary partition', or it "
452 "must be a series of decimal digits ending with a "
453 "'M' (indicating megabytes) or a 'G' (indicating "
459 * If we made it through that obstacle course, all is well.
463 aura_dict_store(d, mountpoint, strlen(mountpoint) + 1, "", 1);
467 inform(a->c, _("You must include a / (root) subpartition."));
471 if (aura_dict_size(d) > 16) {
472 inform(a->c, _("You cannot have more than 16 subpartitions "
473 "on a single primary partition. Remove some "
484 save_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
486 struct dfui_dataset *ds;
488 const char *mountpoint, *capstring;
494 subpartitions_free(storage_get_selected_slice(a->s));
496 for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
497 ds = dfui_dataset_get_next(ds)) {
498 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
499 capstring = dfui_dataset_get_value(ds, "capacity");
503 (strcmp(dfui_dataset_get_value(ds, "softupdates"), "Y") == 0);
504 fsize = atol(dfui_dataset_get_value(ds, "fsize"));
505 bsize = atol(dfui_dataset_get_value(ds, "bsize"));
506 mfsbacked = (strcmp(dfui_dataset_get_value(ds, "msfbacked"), "Y") == 0);
508 softupdates = (strcmp(mountpoint, "/") == 0 ? 0 : 1);
514 if (string_to_capacity(capstring, &capacity)) {
515 subpartition_new(storage_get_selected_slice(a->s), mountpoint, capacity,
516 softupdates, fsize, bsize, mfsbacked);
522 populate_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
524 struct subpartition *sp;
525 struct dfui_dataset *ds;
530 if (slice_subpartition_first(storage_get_selected_slice(a->s)) != NULL) {
532 * The user has already given us their subpartition
533 * preferences, so use them here.
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)));
543 dfui_dataset_celldata_add(ds, "softupdates",
544 subpartition_is_softupdated(sp) ? "Y" : "N");
545 dfui_dataset_celldata_add(ds, "mfsbacked",
546 subpartition_is_mfsbacked(sp) ? "Y" : "N");
547 snprintf(temp, 32, "%ld", subpartition_get_fsize(sp));
548 dfui_dataset_celldata_add(ds, "fsize",
550 snprintf(temp, 32, "%ld", subpartition_get_bsize(sp));
551 dfui_dataset_celldata_add(ds, "bsize",
554 dfui_form_dataset_add(f, ds);
558 * Otherwise, populate the form with datasets representing
559 * reasonably-calculated defaults. The defaults are chosen
560 * based on the slice's total capacity and the machine's
561 * total physical memory (for swap.)
563 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
564 capacity = default_capacity(a->s, mtpt);
565 ds = dfui_dataset_new();
566 dfui_dataset_celldata_add(ds, "mountpoint",
568 dfui_dataset_celldata_add(ds, "capacity",
569 capacity_to_string(capacity));
571 dfui_dataset_celldata_add(ds, "softupdates",
572 strcmp(def_mountpt[mtpt], "/") != 0 ? "Y" : "N");
573 dfui_dataset_celldata_add(ds, "mfsbacked",
575 dfui_dataset_celldata_add(ds, "fsize",
576 capacity < 1024 ? "1024" : "2048");
577 dfui_dataset_celldata_add(ds, "bsize",
578 capacity < 1024 ? "8192" : "16384");
580 dfui_form_dataset_add(f, ds);
586 warn_subpartition_selections(struct i_fn_args *a)
589 struct aura_buffer *omit, *consequences;
591 omit = aura_buffer_new(2048);
592 consequences = aura_buffer_new(2048);
594 valid = check_capacity(a);
595 if (subpartition_find(storage_get_selected_slice(a->s), "/var") == NULL) {
596 aura_buffer_cat(omit, "/var ");
597 aura_buffer_cat(consequences, _("/var will be a plain dir in /\n"));
599 if (subpartition_find(storage_get_selected_slice(a->s), "/usr") == NULL) {
600 aura_buffer_cat(omit, "/usr ");
601 aura_buffer_cat(consequences, _("/usr will be a plain dir in /\n"));
603 if (subpartition_find(storage_get_selected_slice(a->s), "/tmp") == NULL) {
604 aura_buffer_cat(omit, "/tmp ");
605 aura_buffer_cat(consequences, _("/tmp will be symlinked to /var/tmp\n"));
607 if (subpartition_find(storage_get_selected_slice(a->s), "/home") == NULL) {
608 aura_buffer_cat(omit, "/home ");
609 aura_buffer_cat(consequences, _("/home will be symlinked to /usr/home\n"));
612 if (valid && aura_buffer_len(omit) > 0) {
613 switch (dfui_be_present_dialog(a->c, _("Really omit?"),
614 _("Omit Subpartition(s)|Return to Create Subpartitions"),
615 _("You have elected to not have the following "
616 "subpartition(s):\n\n%s\n\n"
617 "The ramifications of these subpartition(s) being "
618 "missing will be:\n\n%s\n"
619 "Is this really what you want to do?"),
620 aura_buffer_buf(omit), aura_buffer_buf(consequences))) {
632 aura_buffer_free(omit);
633 aura_buffer_free(consequences);
638 static struct dfui_form *
639 make_create_subpartitions_form(struct i_fn_args *a)
641 struct dfui_field *fi;
643 char msg_buf[1][1024];
645 snprintf(msg_buf[0], sizeof(msg_buf[0]),
646 _("Subpartitions further divide a primary partition for "
647 "use with %s. Some reasons you may want "
648 "a set of subpartitions are:\n\n"
649 "- you want to restrict how much data can be written "
650 "to certain parts of the primary partition, to quell "
651 "denial-of-service attacks; and\n"
652 "- you want to speed up access to data on the disk."
653 ""), OPERATING_SYSTEM_NAME);
655 f = dfui_form_create(
656 "create_subpartitions",
657 _("Create Subpartitions"),
658 _("Set up the subpartitions (also known as just `partitions' "
659 "in BSD tradition) you want to have on this primary "
661 "For Capacity, use 'M' to indicate megabytes, 'G' to "
662 "indicate gigabytes, or a single '*' to indicate "
663 "'use the remaining space on the primary partition'."),
667 "p", "special", "dfinstaller_create_subpartitions",
668 "p", "minimum_width","64",
670 "f", "mountpoint", _("Mountpoint"), "", "",
671 "f", "capacity", _("Capacity"), "", "",
673 "a", "ok", _("Accept and Create"), "", "",
675 (disk_get_formatted(storage_get_selected_disk(a->s)) ?
676 _("Return to Select Disk") :
677 _("Return to Select Primary Partition")), "", "",
678 "p", "accelerator", "ESC",
683 dfui_form_set_multiple(f, 1);
684 dfui_form_set_extensible(f, 1);
687 fi = dfui_form_field_add(f, "softupdates",
688 dfui_info_new(_("Softupdates"), "", ""));
689 dfui_field_property_set(fi, "control", "checkbox");
691 fi = dfui_form_field_add(f, "mfsbacked",
692 dfui_info_new(_("MFS"), "", ""));
693 dfui_field_property_set(fi, "control", "checkbox");
695 fi = dfui_form_field_add(f, "fsize",
696 dfui_info_new(_("Frag Sz"), "", ""));
698 fi = dfui_form_field_add(f, "bsize",
699 dfui_info_new(_("Block Sz"), "", ""));
701 dfui_form_action_add(f, "switch",
702 dfui_info_new(_("Switch to Normal Mode"), "", ""));
704 dfui_form_action_add(f, "switch",
705 dfui_info_new(_("Switch to Expert Mode"), "", ""));
713 * -1 = the form should be redisplayed
714 * 0 = failure, function is over
715 * 1 = success, function is over
718 show_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
720 struct dfui_dataset *ds;
721 struct dfui_response *r;
724 if (dfui_form_dataset_get_first(f) == NULL)
725 populate_create_subpartitions_form(f, a);
727 if (!dfui_be_present(a->c, f, &r))
730 if (strcmp(dfui_response_get_action_id(r), "cancel") == 0) {
731 dfui_response_free(r);
733 } else if (strcmp(dfui_response_get_action_id(r), "switch") == 0) {
734 if (check_subpartition_selections(r, a)) {
735 save_subpartition_selections(r, a);
736 expert = expert ? 0 : 1;
737 dfui_response_free(r);
741 if (check_subpartition_selections(r, a)) {
742 save_subpartition_selections(r, a);
743 if (!warn_subpartition_selections(a)) {
744 if (!create_subpartitions(a)) {
745 inform(a->c, _("The subpartitions you chose were "
746 "not correctly created, and the "
747 "primary partition may "
748 "now be in an inconsistent state. "
749 "We recommend re-formatting it "
750 "before proceeding."));
751 dfui_response_free(r);
754 dfui_response_free(r);
761 dfui_form_datasets_free(f);
762 /* dfui_form_datasets_add_from_response(f, r); */
763 for (ds = dfui_response_dataset_get_first(r); ds != NULL;
764 ds = dfui_dataset_get_next(ds)) {
765 dfui_form_dataset_add(f, dfui_dataset_dup(ds));
771 * fn_create_subpartitions: let the user specify what subpartitions they
772 * want on the disk, how large each should be, and where it should be mounted.
775 fn_create_subpartitions(struct i_fn_args *a)
777 struct commands *cmds;
779 cmds = commands_new();
782 * Auto-disklabel the slice.
783 * NB: one cannot use "/dev/adXsY" here -
784 * it must be in the form "adXsY".
786 if (use_hammer == 1) {
787 command_add(cmds, "%s%s -B -r -w %s auto",
788 a->os_root, cmd_name(a, "DISKLABEL64"),
789 slice_get_raw_device_name(storage_get_selected_slice(a->s)));
790 commands_execute(a, cmds);
792 fn_create_subpartitions_hammer(a);
794 command_add(cmds, "%s%s -B -r -w %s auto",
795 a->os_root, cmd_name(a, "DISKLABEL"),
796 slice_get_raw_device_name(storage_get_selected_slice(a->s)));
797 commands_execute(a, cmds);
799 fn_create_subpartitions_ufs(a);
804 fn_create_subpartitions_ufs(struct i_fn_args *a)
811 f = make_create_subpartitions_form(a);
812 switch (show_create_subpartitions_form(f, a)) {