2 * Copyright (c)2004 The DragonFly Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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13 * the documentation and/or other materials provided with the
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17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
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
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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)
52 #include "aura/buffer.h"
53 #include "aura/dict.h"
54 #include "aura/fspred.h"
56 #include "dfui/dfui.h"
57 #include "dfui/dump.h"
58 #include "dfui/system.h"
60 #include "installer/commands.h"
61 #include "installer/diskutil.h"
62 #include "installer/functions.h"
63 #include "installer/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 const char *def_mountpt[7] = {"/", "swap", "/var", "/tmp", "/usr", "/home", NULL};
80 long def_capacity[7] = {128, 128, 128, 128, 256, -1, 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 * '8 or 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)),
130 * 8 or 16 partitions:
131 * # size offset fstype [fsize bsize bps/cpg]
132 * c: 2128833 0 unused 0 0 # (Cyl. 0 - 2111*)
135 #if defined(__FreeBSD__) && !defined(__DragonFly__)
139 command_add(cmds, "%s%s '%d partitions:' >>%sinstall.disklabel",
140 a->os_root, cmd_name(a, "ECHO"), num_partitions ,a->tmp);
141 command_add(cmds, "%s%s '%s' >>%sinstall.disklabel",
142 a->os_root, cmd_name(a, "ECHO"),
143 "# size offset fstype [fsize bsize bps/cpg]",
147 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
148 sp != NULL; sp = subpartition_next(sp)) {
149 command_add(cmds, "%s%s 'mountpoint: %s device: %s'",
150 a->os_root, cmd_name(a, "ECHO"),
151 subpartition_get_mountpoint(sp),
152 subpartition_get_device_name(sp));
157 * Write a line for each subpartition the user wants.
159 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
160 sp != NULL; sp = subpartition_next(sp)) {
161 if (subpartition_is_mfsbacked(sp)) {
164 if (subpartition_get_letter(sp) > 'c' && !copied_original) {
166 * Copy the 'c' line from the 'virgin' disklabel.
168 command_add(cmds, "%s%s '^ c:' %sinstall.disklabel.%s >>%sinstall.disklabel",
169 a->os_root, cmd_name(a, "GREP"),
171 slice_get_device_name(storage_get_selected_slice(a->s)),
175 if (subpartition_is_swap(sp)) {
176 command_add(cmds, "%s%s ' %c:\t%s\t*\tswap' >>%sinstall.disklabel",
177 a->os_root, cmd_name(a, "ECHO"),
178 subpartition_get_letter(sp),
179 capacity_to_string(subpartition_get_capacity(sp)),
182 command_add(cmds, "%s%s ' %c:\t%s\t%s\t4.2BSD\t%ld\t%ld\t99' >>%sinstall.disklabel",
183 a->os_root, cmd_name(a, "ECHO"),
184 subpartition_get_letter(sp),
185 capacity_to_string(subpartition_get_capacity(sp)),
186 subpartition_get_letter(sp) == 'a' ? "0" : "*",
187 subpartition_get_fsize(sp),
188 subpartition_get_bsize(sp),
192 if (!copied_original) {
194 * Copy the 'c' line from the 'virgin' disklabel,
195 * if we haven't yet (less than 2 subpartitions.)
197 command_add(cmds, "%s%s '^ c:' %sinstall.disklabel.%s >>%sinstall.disklabel",
198 a->os_root, cmd_name(a, "GREP"),
200 slice_get_device_name(storage_get_selected_slice(a->s)),
203 temp_file_add(a, "install.disklabel");
206 * Label the slice from the disklabel we just wove together.
208 command_add(cmds, "%s%s -R -B -r %s %sinstall.disklabel",
209 a->os_root, cmd_name(a, "DISKLABEL"),
210 slice_get_device_name(storage_get_selected_slice(a->s)),
214 * Create a snapshot of the disklabel we just created
215 * for debugging inspection in the log.
217 command_add(cmds, "%s%s %s",
218 a->os_root, cmd_name(a, "DISKLABEL"),
219 slice_get_device_name(storage_get_selected_slice(a->s)));
222 * Create filesystems on the newly-created subpartitions.
224 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
225 sp != NULL; sp = subpartition_next(sp)) {
226 if (subpartition_is_swap(sp) || subpartition_is_mfsbacked(sp))
230 * Ensure that all the needed device nodes exist.
232 command_add_ensure_dev(a, cmds,
233 disk_get_device_name(storage_get_selected_disk(a->s)));
234 command_add_ensure_dev(a, cmds,
235 slice_get_device_name(storage_get_selected_slice(a->s)));
236 command_add_ensure_dev(a, cmds,
237 subpartition_get_device_name(sp));
239 command_add(cmds, "%s%s%s %sdev/%s",
240 a->os_root, cmd_name(a, "NEWFS"),
241 subpartition_is_softupdated(sp) ? " -U" : "",
243 subpartition_get_device_name(sp));
246 result = commands_execute(a, cmds);
252 * +-------+------------+--------------+-----------------+-----------------+
253 * | Mtpt | Matt says | FreeBSD says | I got away with | A tiny system |
254 * +-------+------------+--------------+-----------------+-----------------+
255 * | / | 256M | 100M | 256M | 64M |
256 * | swap | 1G | 2 or 3 * mem | (4 * mem) 256M | (1 * mem) 64M |
257 * | /var | 256M | 50M | 256M | 12M |
258 * | /tmp | 256M | --- | 256M | --- |
259 * | /usr | [4G to] 8G | (>160M) rest | 5G | 160M |
260 * | /home | rest | --- | 3.5G | --- |
261 * +-------+------------+--------------+-----------------+-----------------+
262 * | total | 10G+ | ~430M+ | 9.5G | 300M |
263 * +-------+------------+--------------+-----------------+-----------------+
267 default_capacity(struct storage *s, int mtpt)
270 unsigned long capacity;
272 if (mtpt == MTPT_HOME)
275 capacity = slice_get_capacity(storage_get_selected_slice(s));
276 swap = 2 * storage_get_memsize(s);
277 if (storage_get_memsize(s) > (capacity / 2) || capacity < 4096)
278 swap = storage_get_memsize(s);
280 if (capacity < DISK_MIN) {
282 * For the purposes of this installer:
283 * can't be done. Sorry.
286 } else if (capacity < 523) {
288 case MTPT_ROOT: return(70);
289 case MTPT_SWAP: return(swap);
290 case MTPT_VAR: return(32);
291 case MTPT_TMP: return(32);
292 case MTPT_USR: return(174);
294 } else if (capacity < 1024) {
296 case MTPT_ROOT: return(96);
297 case MTPT_SWAP: return(swap);
298 case MTPT_VAR: return(64);
299 case MTPT_TMP: return(64);
300 case MTPT_USR: return(256);
302 } else if (capacity < 4096) {
304 case MTPT_ROOT: return(128);
305 case MTPT_SWAP: return(swap);
306 case MTPT_VAR: return(128);
307 case MTPT_TMP: return(128);
308 case MTPT_USR: return(512);
310 } else if (capacity < 10240) {
312 case MTPT_ROOT: return(256);
313 case MTPT_SWAP: return(swap);
314 case MTPT_VAR: return(256);
315 case MTPT_TMP: return(256);
316 case MTPT_USR: return(3072);
320 case MTPT_ROOT: return(256);
321 case MTPT_SWAP: return(swap);
322 case MTPT_VAR: return(256);
323 case MTPT_TMP: return(256);
324 case MTPT_USR: return(8192);
327 /* shouldn't ever happen */
332 check_capacity(struct i_fn_args *a)
334 struct subpartition *sp;
335 unsigned long min_capacity[7] = {70, 0, 8, 0, 174, 0, 0};
336 unsigned long total_capacity = 0;
339 if (subpartition_find(storage_get_selected_slice(a->s), "/usr") == NULL)
340 min_capacity[MTPT_ROOT] += min_capacity[MTPT_USR];
342 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
343 sp != NULL; sp = subpartition_next(sp)) {
344 total_capacity += subpartition_get_capacity(sp);
345 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
346 if (strcmp(subpartition_get_mountpoint(sp), def_mountpt[mtpt]) == 0 &&
347 min_capacity[mtpt] > 0 &&
348 subpartition_get_capacity(sp) < min_capacity[mtpt]) {
349 inform(a->c, _("WARNING: the %s subpartition should "
350 "be at least %dM in size or you will "
351 "risk running out of space during "
352 "the installation."),
353 subpartition_get_mountpoint(sp), min_capacity[mtpt]);
358 if (total_capacity > slice_get_capacity(storage_get_selected_slice(a->s))) {
359 inform(a->c, _("The space allocated to all of your selected "
360 "subpartitions (%dM) exceeds the total "
361 "capacity of the selected primary partition "
362 "(%dM). Remove some subpartitions or choose "
363 "a smaller size for them and try again."),
364 total_capacity, slice_get_capacity(storage_get_selected_slice(a->s)));
372 check_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
374 struct dfui_dataset *ds;
375 struct dfui_dataset *star_ds = NULL;
377 const char *mountpoint, *capstring;
381 int softupdates, mfsbacked;
384 d = aura_dict_new(1, AURA_DICT_LIST);
386 if ((ds = dfui_response_dataset_get_first(r)) == NULL) {
387 inform(a->c, _("Please set up at least one subpartition."));
391 for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
392 ds = dfui_dataset_get_next(ds)) {
394 dfui_dataset_dump(ds);
396 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
397 capstring = dfui_dataset_get_value(ds, "capacity");
401 (strcmp(dfui_dataset_get_value(ds, "softupdates"), "Y") == 0);
402 fsize = atol(dfui_dataset_get_value(ds, "fsize"));
403 bsize = atol(dfui_dataset_get_value(ds, "bsize"));
404 mfsbacked = (strcmp(dfui_dataset_get_value(ds, "mfsbacked"), "Y") == 0);
406 softupdates = (strcmp(mountpoint, "/") == 0 ? 0 : 1);
407 mfsbacked = (strcmp(mountpoint, "/tmp") == 0 ? 0 : 1);
412 if (aura_dict_exists(d, mountpoint, strlen(mountpoint) + 1)) {
413 inform(a->c, _("The same mount point cannot be specified "
414 "for two different subpartitions."));
418 if (strcmp(mountpoint, "/") == 0)
421 if (strcmp(capstring, "*") == 0) {
422 if (star_ds != NULL) {
423 inform(a->c, _("You cannot have more than one subpartition "
424 "with a '*' capacity (meaning 'use the remainder "
425 "of the primary partition'.)"));
432 if (!(!strcasecmp(mountpoint, "swap") || mountpoint[0] == '/')) {
433 inform(a->c, _("Mount point must be either 'swap', or it must "
434 "start with a '/'."));
438 if (strpbrk(mountpoint, " \\\"'`") != NULL) {
439 inform(a->c, _("Mount point may not contain the following "
440 "characters: blank space, backslash, or "
441 "single, double, or back quotes."));
445 if (strlen(capstring) == 0) {
446 inform(a->c, _("A capacity must be specified."));
450 if (!string_to_capacity(capstring, &capacity)) {
451 inform(a->c, _("Capacity must be either a '*' symbol to indicate "
452 "'use the rest of the primary partition', or it "
453 "must be a series of decimal digits ending with a "
454 "'M' (indicating megabytes) or a 'G' (indicating "
460 * If we made it through that obstacle course, all is well.
464 aura_dict_store(d, mountpoint, strlen(mountpoint) + 1, "", 1);
468 inform(a->c, _("You must include a / (root) subpartition."));
472 if (aura_dict_size(d) > 16) {
473 inform(a->c, _("You cannot have more than 16 subpartitions "
474 "on a single primary partition. Remove some "
485 save_subpartition_selections(struct dfui_response *r, struct i_fn_args *a)
487 struct dfui_dataset *ds;
489 const char *mountpoint, *capstring;
495 subpartitions_free(storage_get_selected_slice(a->s));
497 for (ds = dfui_response_dataset_get_first(r); valid && ds != NULL;
498 ds = dfui_dataset_get_next(ds)) {
499 mountpoint = dfui_dataset_get_value(ds, "mountpoint");
500 capstring = dfui_dataset_get_value(ds, "capacity");
504 (strcmp(dfui_dataset_get_value(ds, "softupdates"), "Y") == 0);
505 fsize = atol(dfui_dataset_get_value(ds, "fsize"));
506 bsize = atol(dfui_dataset_get_value(ds, "bsize"));
507 mfsbacked = (strcmp(dfui_dataset_get_value(ds, "msfbacked"), "Y") == 0);
509 softupdates = (strcmp(mountpoint, "/") == 0 ? 0 : 1);
515 if (string_to_capacity(capstring, &capacity)) {
516 subpartition_new(storage_get_selected_slice(a->s), mountpoint, capacity,
517 softupdates, fsize, bsize, mfsbacked);
523 populate_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
525 struct subpartition *sp;
526 struct dfui_dataset *ds;
531 if (slice_subpartition_first(storage_get_selected_slice(a->s)) != NULL) {
533 * The user has already given us their subpartition
534 * preferences, so use them here.
536 for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
537 sp != NULL; sp = subpartition_next(sp)) {
538 ds = dfui_dataset_new();
539 dfui_dataset_celldata_add(ds, "mountpoint",
540 subpartition_get_mountpoint(sp));
541 dfui_dataset_celldata_add(ds, "capacity",
542 capacity_to_string(subpartition_get_capacity(sp)));
544 dfui_dataset_celldata_add(ds, "softupdates",
545 subpartition_is_softupdated(sp) ? "Y" : "N");
546 dfui_dataset_celldata_add(ds, "mfsbacked",
547 subpartition_is_mfsbacked(sp) ? "Y" : "N");
548 snprintf(temp, 32, "%ld", subpartition_get_fsize(sp));
549 dfui_dataset_celldata_add(ds, "fsize",
551 snprintf(temp, 32, "%ld", subpartition_get_bsize(sp));
552 dfui_dataset_celldata_add(ds, "bsize",
555 dfui_form_dataset_add(f, ds);
559 * Otherwise, populate the form with datasets representing
560 * reasonably-calculated defaults. The defaults are chosen
561 * based on the slice's total capacity and the machine's
562 * total physical memory (for swap.)
564 for (mtpt = 0; def_mountpt[mtpt] != NULL; mtpt++) {
565 capacity = default_capacity(a->s, mtpt);
566 ds = dfui_dataset_new();
567 dfui_dataset_celldata_add(ds, "mountpoint",
569 dfui_dataset_celldata_add(ds, "capacity",
570 capacity_to_string(capacity));
572 dfui_dataset_celldata_add(ds, "softupdates",
573 strcmp(def_mountpt[mtpt], "/") != 0 ? "Y" : "N");
574 dfui_dataset_celldata_add(ds, "mfsbacked",
576 dfui_dataset_celldata_add(ds, "fsize",
577 capacity < 1024 ? "1024" : "2048");
578 dfui_dataset_celldata_add(ds, "bsize",
579 capacity < 1024 ? "8192" : "16384");
581 dfui_form_dataset_add(f, ds);
587 warn_subpartition_selections(struct i_fn_args *a)
590 struct aura_buffer *omit, *consequences;
592 omit = aura_buffer_new(2048);
593 consequences = aura_buffer_new(2048);
595 valid = check_capacity(a);
596 if (subpartition_find(storage_get_selected_slice(a->s), "/var") == NULL) {
597 aura_buffer_cat(omit, "/var ");
598 aura_buffer_cat(consequences, _("/var will be a plain dir in /\n"));
600 if (subpartition_find(storage_get_selected_slice(a->s), "/usr") == NULL) {
601 aura_buffer_cat(omit, "/usr ");
602 aura_buffer_cat(consequences, _("/usr will be a plain dir in /\n"));
604 if (subpartition_find(storage_get_selected_slice(a->s), "/tmp") == NULL) {
605 aura_buffer_cat(omit, "/tmp ");
606 aura_buffer_cat(consequences, _("/tmp will be symlinked to /var/tmp\n"));
608 if (subpartition_find(storage_get_selected_slice(a->s), "/home") == NULL) {
609 aura_buffer_cat(omit, "/home ");
610 aura_buffer_cat(consequences, _("/home will be symlinked to /usr/home\n"));
613 if (valid && aura_buffer_len(omit) > 0) {
614 switch (dfui_be_present_dialog(a->c, _("Really omit?"),
615 _("Omit Subpartition(s)|Return to Create Subpartitions"),
616 _("You have elected to not have the following "
617 "subpartition(s):\n\n%s\n\n"
618 "The ramifications of these subpartition(s) being "
619 "missing will be:\n\n%s\n"
620 "Is this really what you want to do?"),
621 aura_buffer_buf(omit), aura_buffer_buf(consequences))) {
633 aura_buffer_free(omit);
634 aura_buffer_free(consequences);
639 static struct dfui_form *
640 make_create_subpartitions_form(struct i_fn_args *a)
642 struct dfui_field *fi;
644 char msg_buf[1][1024];
646 snprintf(msg_buf[0], sizeof(msg_buf[0]),
647 _("Subpartitions further divide a primary partition for "
648 "use with %s. Some reasons you may want "
649 "a set of subpartitions are:\n\n"
650 "- you want to restrict how much data can be written "
651 "to certain parts of the primary partition, to quell "
652 "denial-of-service attacks; and\n"
653 "- you want to speed up access to data on the disk."
654 ""), OPERATING_SYSTEM_NAME);
656 f = dfui_form_create(
657 "create_subpartitions",
658 _("Create Subpartitions"),
659 _("Set up the subpartitions (also known as just `partitions' "
660 "in BSD tradition) you want to have on this primary "
662 "For Capacity, use 'M' to indicate megabytes, 'G' to "
663 "indicate gigabytes, or a single '*' to indicate "
664 "'use the remaining space on the primary partition'."),
668 "p", "special", "dfinstaller_create_subpartitions",
669 "p", "minimum_width","64",
671 "f", "mountpoint", _("Mountpoint"), "", "",
672 "f", "capacity", _("Capacity"), "", "",
674 "a", "ok", _("Accept and Create"), "", "",
676 (disk_get_formatted(storage_get_selected_disk(a->s)) ?
677 _("Return to Select Disk") :
678 _("Return to Select Primary Partition")), "", "",
679 "p", "accelerator", "ESC",
684 dfui_form_set_multiple(f, 1);
685 dfui_form_set_extensible(f, 1);
688 fi = dfui_form_field_add(f, "softupdates",
689 dfui_info_new(_("Softupdates"), "", ""));
690 dfui_field_property_set(fi, "control", "checkbox");
692 fi = dfui_form_field_add(f, "mfsbacked",
693 dfui_info_new(_("MFS"), "", ""));
694 dfui_field_property_set(fi, "control", "checkbox");
696 fi = dfui_form_field_add(f, "fsize",
697 dfui_info_new(_("Frag Sz"), "", ""));
699 fi = dfui_form_field_add(f, "bsize",
700 dfui_info_new(_("Block Sz"), "", ""));
702 dfui_form_action_add(f, "switch",
703 dfui_info_new(_("Switch to Normal Mode"), "", ""));
705 dfui_form_action_add(f, "switch",
706 dfui_info_new(_("Switch to Expert Mode"), "", ""));
714 * -1 = the form should be redisplayed
715 * 0 = failure, function is over
716 * 1 = success, function is over
719 show_create_subpartitions_form(struct dfui_form *f, struct i_fn_args *a)
721 struct dfui_dataset *ds;
722 struct dfui_response *r;
725 if (dfui_form_dataset_get_first(f) == NULL)
726 populate_create_subpartitions_form(f, a);
728 if (!dfui_be_present(a->c, f, &r))
731 if (strcmp(dfui_response_get_action_id(r), "cancel") == 0) {
732 dfui_response_free(r);
734 } else if (strcmp(dfui_response_get_action_id(r), "switch") == 0) {
735 if (check_subpartition_selections(r, a)) {
736 save_subpartition_selections(r, a);
737 expert = expert ? 0 : 1;
738 dfui_response_free(r);
742 if (check_subpartition_selections(r, a)) {
743 save_subpartition_selections(r, a);
744 if (!warn_subpartition_selections(a)) {
745 if (!create_subpartitions(a)) {
746 inform(a->c, _("The subpartitions you chose were "
747 "not correctly created, and the "
748 "primary partition may "
749 "now be in an inconsistent state. "
750 "We recommend re-formatting it "
751 "before proceeding."));
752 dfui_response_free(r);
755 dfui_response_free(r);
762 dfui_form_datasets_free(f);
763 /* dfui_form_datasets_add_from_response(f, r); */
764 for (ds = dfui_response_dataset_get_first(r); ds != NULL;
765 ds = dfui_dataset_get_next(ds)) {
766 dfui_form_dataset_add(f, dfui_dataset_dup(ds));
772 * fn_create_subpartitions: let the user specify what subpartitions they
773 * want on the disk, how large each should be, and where it should be mounted.
776 fn_create_subpartitions(struct i_fn_args *a)
783 f = make_create_subpartitions_form(a);
784 switch (show_create_subpartitions_form(f, a)) {