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f0fa1795 MT |
1 | /*############################################################################# |
2 | # # | |
3 | # IPFire - An Open Source Firewall Distribution # | |
4 | # Copyright (C) 2014 IPFire development team # | |
5 | # # | |
6 | # This program is free software: you can redistribute it and/or modify # | |
7 | # it under the terms of the GNU General Public License as published by # | |
8 | # the Free Software Foundation, either version 3 of the License, or # | |
9 | # (at your option) any later version. # | |
10 | # # | |
11 | # This program is distributed in the hope that it will be useful, # | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
14 | # GNU General Public License for more details. # | |
15 | # # | |
16 | # You should have received a copy of the GNU General Public License # | |
17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
18 | # # | |
19 | #############################################################################*/ | |
20 | ||
25fcce25 MT |
21 | #ifndef _GNU_SOURCE |
22 | #define _GNU_SOURCE | |
23 | #endif | |
24 | ||
f0fa1795 | 25 | #include <assert.h> |
d7dd283b MT |
26 | #include <blkid/blkid.h> |
27 | #include <fcntl.h> | |
f0fa1795 | 28 | #include <libudev.h> |
d7dd283b | 29 | #include <math.h> |
f0fa1795 MT |
30 | #include <stdio.h> |
31 | #include <stdlib.h> | |
32 | #include <string.h> | |
d7dd283b | 33 | #include <sys/ioctl.h> |
f0fa1795 | 34 | #include <sys/mount.h> |
25fcce25 | 35 | #include <sys/swap.h> |
f0fa1795 MT |
36 | #include <unistd.h> |
37 | ||
d7dd283b MT |
38 | #include <linux/fs.h> |
39 | ||
f0fa1795 | 40 | #include "hw.h" |
25fcce25 MT |
41 | #include "../libsmooth/libsmooth.h" |
42 | ||
43 | const char* other_filesystems[] = { | |
44 | "/dev", | |
45 | "/proc", | |
46 | "/sys", | |
47 | NULL | |
48 | }; | |
f0fa1795 MT |
49 | |
50 | struct hw* hw_init() { | |
51 | struct hw* hw = malloc(sizeof(*hw)); | |
52 | assert(hw); | |
53 | ||
54 | // Initialize libudev | |
55 | hw->udev = udev_new(); | |
56 | if (!hw->udev) { | |
57 | fprintf(stderr, "Could not create udev instance\n"); | |
58 | exit(1); | |
59 | } | |
60 | ||
61 | return hw; | |
62 | } | |
63 | ||
64 | void hw_free(struct hw* hw) { | |
65 | if (hw->udev) | |
66 | udev_unref(hw->udev); | |
67 | ||
68 | free(hw); | |
69 | } | |
70 | ||
71 | static int strstartswith(const char* a, const char* b) { | |
72 | return (strncmp(a, b, strlen(b)) == 0); | |
73 | } | |
74 | ||
25fcce25 MT |
75 | int hw_mount(const char* source, const char* target, const char* fs, int flags) { |
76 | return mount(source, target, fs, flags, NULL); | |
f0fa1795 MT |
77 | } |
78 | ||
79 | int hw_umount(const char* target) { | |
80 | return umount2(target, MNT_DETACH); | |
81 | } | |
82 | ||
83 | static int hw_test_source_medium(const char* path) { | |
25fcce25 | 84 | int ret = hw_mount(path, SOURCE_MOUNT_PATH, "iso9660", MS_RDONLY); |
f0fa1795 MT |
85 | |
86 | // If the source could not be mounted we | |
87 | // cannot proceed. | |
88 | if (ret) | |
89 | return ret; | |
90 | ||
91 | // Check if the test file exists. | |
92 | ret = access(SOURCE_TEST_FILE, F_OK); | |
93 | ||
94 | // Umount the test device. | |
95 | hw_umount(SOURCE_MOUNT_PATH); | |
96 | ||
97 | return ret; | |
98 | } | |
99 | ||
100 | char* hw_find_source_medium(struct hw* hw) { | |
101 | char* ret = NULL; | |
102 | ||
103 | struct udev_enumerate* enumerate = udev_enumerate_new(hw->udev); | |
104 | ||
105 | udev_enumerate_add_match_subsystem(enumerate, "block"); | |
106 | udev_enumerate_scan_devices(enumerate); | |
107 | ||
108 | struct udev_list_entry* devices = udev_enumerate_get_list_entry(enumerate); | |
109 | ||
110 | struct udev_list_entry* dev_list_entry; | |
111 | udev_list_entry_foreach(dev_list_entry, devices) { | |
112 | const char* path = udev_list_entry_get_name(dev_list_entry); | |
113 | struct udev_device* dev = udev_device_new_from_syspath(hw->udev, path); | |
114 | ||
115 | const char* dev_path = udev_device_get_devnode(dev); | |
116 | ||
117 | // Skip everything what we cannot work with | |
118 | if (strstartswith(dev_path, "/dev/loop") || strstartswith(dev_path, "/dev/fd") || | |
119 | strstartswith(dev_path, "/dev/ram")) | |
120 | continue; | |
121 | ||
122 | if (hw_test_source_medium(dev_path)) { | |
123 | ret = strdup(dev_path); | |
124 | } | |
125 | ||
126 | udev_device_unref(dev); | |
127 | ||
128 | // If a suitable device was found the search will end. | |
129 | if (ret) | |
130 | break; | |
131 | } | |
132 | ||
133 | udev_enumerate_unref(enumerate); | |
134 | ||
135 | return ret; | |
136 | } | |
d7dd283b MT |
137 | |
138 | static struct hw_disk** hw_create_disks() { | |
139 | struct hw_disk** ret = malloc(sizeof(*ret) * (HW_MAX_DISKS + 1)); | |
140 | ||
141 | return ret; | |
142 | } | |
143 | ||
144 | static unsigned long long hw_block_device_get_size(const char* dev) { | |
145 | int fd = open(dev, O_RDONLY); | |
146 | if (fd < 0) | |
147 | return 0; | |
148 | ||
149 | unsigned long long size = blkid_get_dev_size(fd); | |
150 | close(fd); | |
151 | ||
152 | return size; | |
153 | } | |
154 | ||
155 | struct hw_disk** hw_find_disks(struct hw* hw) { | |
156 | struct hw_disk** ret = hw_create_disks(); | |
157 | struct hw_disk** disks = ret; | |
158 | ||
159 | struct udev_enumerate* enumerate = udev_enumerate_new(hw->udev); | |
160 | ||
161 | udev_enumerate_add_match_subsystem(enumerate, "block"); | |
162 | udev_enumerate_scan_devices(enumerate); | |
163 | ||
164 | struct udev_list_entry* devices = udev_enumerate_get_list_entry(enumerate); | |
165 | ||
166 | struct udev_list_entry* dev_list_entry; | |
167 | unsigned int i = HW_MAX_DISKS; | |
168 | udev_list_entry_foreach(dev_list_entry, devices) { | |
169 | const char* path = udev_list_entry_get_name(dev_list_entry); | |
170 | struct udev_device* dev = udev_device_new_from_syspath(hw->udev, path); | |
171 | ||
172 | const char* dev_path = udev_device_get_devnode(dev); | |
173 | ||
174 | // Skip everything what we cannot work with | |
175 | if (strstartswith(dev_path, "/dev/loop") || strstartswith(dev_path, "/dev/fd") || | |
176 | strstartswith(dev_path, "/dev/ram") || strstartswith(dev_path, "/dev/sr")) { | |
177 | udev_device_unref(dev); | |
178 | continue; | |
179 | } | |
180 | ||
181 | // DEVTYPE must be disk (otherwise we will see all sorts of partitions here) | |
182 | const char* devtype = udev_device_get_property_value(dev, "DEVTYPE"); | |
183 | if (devtype && (strcmp(devtype, "disk") != 0)) { | |
184 | udev_device_unref(dev); | |
185 | continue; | |
186 | } | |
187 | ||
188 | // Skip all source mediums | |
189 | if (hw_test_source_medium(dev_path) == 0) { | |
190 | udev_device_unref(dev); | |
191 | continue; | |
192 | } | |
193 | ||
194 | // Skip devices with a size of zero | |
195 | unsigned long long size = hw_block_device_get_size(dev_path); | |
196 | if (size == 0) { | |
197 | udev_device_unref(dev); | |
198 | continue; | |
199 | } | |
200 | ||
201 | struct hw_disk* disk = malloc(sizeof(*disk)); | |
202 | if (disk == NULL) | |
203 | return NULL; | |
204 | ||
205 | disk->ref = 1; | |
206 | ||
207 | strncpy(disk->path, dev_path, sizeof(disk->path)); | |
208 | ||
209 | disk->size = size; | |
210 | ||
211 | // Vendor | |
212 | const char* vendor = udev_device_get_property_value(dev, "ID_VENDOR"); | |
213 | if (!vendor) | |
214 | vendor = udev_device_get_sysattr_value(dev, "vendor"); | |
215 | if (!vendor) | |
216 | vendor = udev_device_get_sysattr_value(dev, "manufacturer"); | |
217 | if (!vendor) | |
218 | vendor = "N/A"; | |
219 | ||
220 | strncpy(disk->vendor, vendor, sizeof(disk->vendor)); | |
221 | ||
222 | // Model | |
223 | const char* model = udev_device_get_property_value(dev, "ID_MODEL"); | |
224 | if (!model) | |
225 | model = udev_device_get_sysattr_value(dev, "model"); | |
226 | if (!model) | |
227 | model = udev_device_get_sysattr_value(dev, "product"); | |
228 | if (!model) | |
229 | model = "N/A"; | |
230 | ||
231 | strncpy(disk->model, model, sizeof(disk->model)); | |
232 | ||
233 | snprintf(disk->description, sizeof(disk->description), | |
234 | "%4.1fGB %s - %s", (double)disk->size / pow(1024, 3), | |
235 | disk->vendor, disk->model); | |
236 | ||
237 | *disks++ = disk; | |
238 | ||
239 | if (--i == 0) | |
240 | break; | |
241 | ||
242 | udev_device_unref(dev); | |
243 | } | |
244 | ||
245 | udev_enumerate_unref(enumerate); | |
246 | ||
247 | *disks = NULL; | |
248 | ||
249 | return ret; | |
250 | } | |
251 | ||
252 | void hw_free_disks(struct hw_disk** disks) { | |
253 | struct hw_disk** disk = disks; | |
254 | ||
255 | while (*disk != NULL) { | |
256 | if (--(*disk)->ref == 0) | |
257 | free(*disk); | |
258 | ||
259 | disk++; | |
260 | } | |
261 | ||
262 | free(disks); | |
263 | } | |
264 | ||
265 | unsigned int hw_count_disks(struct hw_disk** disks) { | |
266 | unsigned int ret = 0; | |
267 | ||
268 | while (*disks++) | |
269 | ret++; | |
270 | ||
271 | return ret; | |
272 | } | |
273 | ||
274 | struct hw_disk** hw_select_disks(struct hw_disk** disks, int* selection) { | |
275 | struct hw_disk** ret = hw_create_disks(); | |
276 | struct hw_disk** selected_disks = ret; | |
277 | ||
278 | unsigned int num_disks = hw_count_disks(disks); | |
279 | ||
280 | for (unsigned int i = 0; i < num_disks; i++) { | |
281 | if (selection && selection[i]) { | |
282 | struct hw_disk *selected_disk = disks[i]; | |
283 | selected_disk->ref++; | |
284 | ||
285 | *selected_disks++ = selected_disk; | |
286 | } | |
287 | } | |
288 | ||
289 | // Set sentinel | |
290 | *selected_disks = NULL; | |
291 | ||
292 | return ret; | |
293 | } | |
294 | ||
25fcce25 MT |
295 | static unsigned long long hw_swap_size(struct hw_destination* dest) { |
296 | unsigned long long memory = hw_memory(); | |
297 | ||
298 | unsigned long long swap_size = memory / 4; | |
299 | ||
300 | // Min. swap size is 128MB | |
301 | if (swap_size < MB2BYTES(128)) | |
302 | swap_size = MB2BYTES(128); | |
303 | ||
304 | // Cap swap size to 1GB | |
305 | else if (swap_size > MB2BYTES(1024)) | |
306 | swap_size = MB2BYTES(1024); | |
307 | ||
308 | return swap_size; | |
309 | } | |
310 | ||
311 | static unsigned long long hw_root_size(struct hw_destination* dest) { | |
312 | unsigned long long root_size; | |
313 | ||
314 | if (dest->size < MB2BYTES(2048)) | |
315 | root_size = MB2BYTES(1024); | |
316 | ||
317 | else if (dest->size >= MB2BYTES(2048) && dest->size <= MB2BYTES(3072)) | |
318 | root_size = MB2BYTES(1536); | |
319 | ||
320 | else | |
321 | root_size = MB2BYTES(2048); | |
322 | ||
323 | return root_size; | |
324 | } | |
325 | ||
326 | static unsigned long long hw_boot_size(struct hw_destination* dest) { | |
327 | return MB2BYTES(64); | |
328 | } | |
329 | ||
330 | static int hw_calculate_partition_table(struct hw_destination* dest) { | |
331 | // Determine the size of the target block device | |
332 | if (dest->is_raid) { | |
333 | dest->size = (dest->disk1->size >= dest->disk2->size) ? | |
334 | dest->disk1->size : dest->disk2->size; | |
335 | } else { | |
336 | dest->size = dest->disk1->size; | |
337 | } | |
338 | ||
339 | dest->size_boot = hw_boot_size(dest); | |
340 | dest->size_swap = hw_swap_size(dest); | |
341 | dest->size_root = hw_root_size(dest); | |
342 | ||
343 | // Determine the size of the data partition. | |
344 | unsigned long long used_space = dest->size_boot + dest->size_swap + dest->size_root; | |
345 | ||
346 | // Disk is way too small | |
347 | if (used_space >= dest->size) | |
348 | return -1; | |
349 | ||
350 | dest->size_data = dest->size - used_space; | |
351 | ||
352 | // If it gets too small, we remove the swap space. | |
353 | if (dest->size_data <= MB2BYTES(256)) { | |
354 | dest->size_data += dest->size_swap; | |
355 | dest->size_swap = 0; | |
356 | } | |
357 | ||
358 | // Set partition names | |
359 | char path[DEV_SIZE]; | |
360 | int part_idx = 1; | |
361 | ||
362 | snprintf(path, sizeof(path), "%s%s", dest->path, (dest->is_raid) ? "p" : ""); | |
363 | ||
364 | if (dest->size_boot > 0) { | |
365 | dest->part_boot_idx = part_idx; | |
366 | ||
367 | snprintf(dest->part_boot, sizeof(dest->part_boot), "%s%d", path, part_idx++); | |
368 | } else | |
369 | *dest->part_boot = '\0'; | |
370 | ||
371 | if (dest->size_swap > 0) | |
372 | snprintf(dest->part_swap, sizeof(dest->part_swap), "%s%d", path, part_idx++); | |
373 | else | |
374 | *dest->part_swap = '\0'; | |
375 | ||
376 | // There is always a root partition | |
377 | if (!*dest->part_boot) | |
378 | dest->part_boot_idx = part_idx; | |
379 | ||
380 | snprintf(dest->part_root, sizeof(dest->part_root), "%s%d", path, part_idx++); | |
381 | ||
382 | if (dest->size_data > 0) | |
383 | snprintf(dest->part_data, sizeof(dest->part_data), "%s%d", path, part_idx++); | |
384 | else | |
385 | *dest->part_data = '\0'; | |
386 | ||
387 | // Determine partition table | |
388 | dest->part_table = HW_PART_TABLE_MSDOS; | |
389 | ||
390 | // Disks over 2TB need to use GPT | |
391 | if (dest->size >= MB2BYTES(2047 * 1024)) | |
392 | dest->part_table = HW_PART_TABLE_GPT; | |
393 | ||
394 | // We also use GPT on raid disks by default | |
395 | else if (dest->is_raid) | |
396 | dest->part_table = HW_PART_TABLE_GPT; | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
d7dd283b MT |
401 | struct hw_destination* hw_make_destination(int part_type, struct hw_disk** disks) { |
402 | struct hw_destination* dest = malloc(sizeof(*dest)); | |
403 | ||
404 | if (part_type == HW_PART_TYPE_NORMAL) { | |
405 | dest->disk1 = *disks; | |
406 | dest->disk2 = NULL; | |
407 | ||
408 | strncpy(dest->path, dest->disk1->path, sizeof(dest->path)); | |
409 | ||
410 | } else if (part_type == HW_PART_TYPE_RAID1) { | |
411 | dest->disk1 = *disks++; | |
412 | dest->disk2 = *disks; | |
413 | ||
414 | snprintf(dest->path, sizeof(dest->path), "/dev/md0"); | |
415 | } | |
416 | ||
417 | // Is this a RAID device? | |
418 | dest->is_raid = (part_type > HW_PART_TYPE_NORMAL); | |
419 | ||
25fcce25 MT |
420 | int r = hw_calculate_partition_table(dest); |
421 | if (r) | |
422 | return NULL; | |
d7dd283b | 423 | |
25fcce25 MT |
424 | // Set default filesystem |
425 | dest->filesystem = HW_FS_DEFAULT; | |
d7dd283b MT |
426 | |
427 | return dest; | |
428 | } | |
c4e96674 MT |
429 | |
430 | unsigned long long hw_memory() { | |
431 | FILE* handle = NULL; | |
432 | char line[STRING_SIZE]; | |
433 | ||
434 | unsigned long long memory = 0; | |
435 | ||
436 | /* Calculate amount of memory in machine */ | |
437 | if ((handle = fopen("/proc/meminfo", "r"))) { | |
438 | while (fgets(line, sizeof(line), handle)) { | |
25fcce25 | 439 | if (!sscanf (line, "MemTotal: %llu kB", &memory)) { |
c4e96674 MT |
440 | memory = 0; |
441 | } | |
442 | } | |
443 | ||
444 | fclose(handle); | |
445 | } | |
446 | ||
447 | return memory * 1024; | |
448 | } | |
25fcce25 MT |
449 | |
450 | int hw_create_partitions(struct hw_destination* dest) { | |
451 | char* cmd = NULL; | |
452 | ||
453 | asprintf(&cmd, "/usr/sbin/parted -s %s -a optimal", dest->path); | |
454 | ||
455 | // Set partition type | |
456 | if (dest->part_table == HW_PART_TABLE_MSDOS) | |
457 | asprintf(&cmd, "%s mklabel msdos", cmd); | |
458 | else if (dest->part_table == HW_PART_TABLE_GPT) | |
459 | asprintf(&cmd, "%s mklabel gpt", cmd); | |
460 | ||
461 | unsigned long long part_start = 0 * 1024 * 1024; // 1MB | |
462 | ||
463 | if (*dest->part_boot) { | |
464 | asprintf(&cmd, "%s mkpart %s ext2 %lluMB %lluMB", cmd, | |
465 | (dest->part_table == HW_PART_TABLE_GPT) ? "BOOT" : "primary", | |
466 | BYTES2MB(part_start), BYTES2MB(part_start + dest->size_boot)); | |
467 | ||
468 | part_start += dest->size_boot; | |
469 | } | |
470 | ||
471 | if (*dest->part_swap) { | |
472 | asprintf(&cmd, "%s mkpart %s linux-swap %lluMB %lluMB", cmd, | |
473 | (dest->part_table == HW_PART_TABLE_GPT) ? "SWAP" : "primary", | |
474 | BYTES2MB(part_start), BYTES2MB(part_start + dest->size_swap)); | |
475 | ||
476 | part_start += dest->size_swap; | |
477 | } | |
478 | ||
479 | if (*dest->part_root) { | |
480 | asprintf(&cmd, "%s mkpart %s ext2 %lluMB %lluMB", cmd, | |
481 | (dest->part_table == HW_PART_TABLE_GPT) ? "ROOT" : "primary", | |
482 | BYTES2MB(part_start), BYTES2MB(part_start + dest->size_root)); | |
483 | ||
484 | part_start += dest->size_root; | |
485 | } | |
486 | ||
487 | if (*dest->part_data) { | |
488 | asprintf(&cmd, "%s mkpart %s ext2 %lluMB %lluMB", cmd, | |
489 | (dest->part_table == HW_PART_TABLE_GPT) ? "DATA" : "primary", | |
490 | BYTES2MB(part_start), BYTES2MB(part_start + dest->size_data)); | |
491 | ||
492 | part_start += dest->size_data; | |
493 | } | |
494 | ||
495 | if (dest->part_table == HW_PART_TABLE_MSDOS && dest->part_boot_idx > 0) { | |
496 | asprintf(&cmd, "%s set %d boot on", cmd, dest->part_boot_idx); | |
497 | ||
498 | } else if (dest->part_table == HW_PART_TABLE_GPT) { | |
499 | asprintf(&cmd, "%s disk_set pmbr_boot on", cmd); | |
500 | } | |
501 | ||
502 | int r = mysystem(cmd); | |
503 | ||
504 | if (cmd) | |
505 | free(cmd); | |
506 | ||
507 | return r; | |
508 | } | |
509 | ||
510 | static int hw_format_filesystem(const char* path, int fs) { | |
511 | char cmd[STRING_SIZE] = "\0"; | |
512 | ||
513 | // Swap | |
514 | if (fs == HW_FS_SWAP) { | |
515 | snprintf(cmd, sizeof(cmd), "/sbin/mkswap -v1 %s &>/dev/null", path); | |
516 | // ReiserFS | |
517 | } else if (fs == HW_FS_REISERFS) { | |
518 | snprintf(cmd, sizeof(cmd), "/sbin/mkreiserfs -f %s ", path); | |
519 | ||
520 | // EXT4 | |
521 | } else if (fs == HW_FS_EXT4) { | |
522 | snprintf(cmd, sizeof(cmd), "/sbin/mke2fs -T ext4 %s", path); | |
523 | ||
524 | // EXT4 w/o journal | |
525 | } else if (fs == HW_FS_EXT4_WO_JOURNAL) { | |
526 | snprintf(cmd, sizeof(cmd), "/sbin/mke2fs -T ext4 -O ^has_journal %s", path); | |
527 | } | |
528 | ||
529 | assert(*cmd); | |
530 | ||
531 | int r = mysystem(cmd); | |
532 | ||
533 | return r; | |
534 | } | |
535 | ||
536 | int hw_create_filesystems(struct hw_destination* dest) { | |
537 | int r; | |
538 | ||
539 | // boot | |
540 | if (*dest->part_boot) { | |
541 | r = hw_format_filesystem(dest->part_boot, dest->filesystem); | |
542 | if (r) | |
543 | return r; | |
544 | } | |
545 | ||
546 | // swap | |
547 | if (*dest->part_swap) { | |
548 | r = hw_format_filesystem(dest->part_swap, HW_FS_SWAP); | |
549 | if (r) | |
550 | return r; | |
551 | } | |
552 | ||
553 | // root | |
554 | r = hw_format_filesystem(dest->part_root, dest->filesystem); | |
555 | if (r) | |
556 | return r; | |
557 | ||
558 | // data | |
559 | if (*dest->part_data) { | |
560 | r = hw_format_filesystem(dest->part_data, dest->filesystem); | |
561 | if (r) | |
562 | return r; | |
563 | } | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
568 | int hw_mount_filesystems(struct hw_destination* dest, const char* prefix) { | |
569 | char target[STRING_SIZE]; | |
570 | ||
571 | assert(*prefix == '/'); | |
572 | ||
573 | const char* filesystem; | |
574 | switch (dest->filesystem) { | |
575 | case HW_FS_REISERFS: | |
576 | filesystem = "reiserfs"; | |
577 | break; | |
578 | ||
579 | case HW_FS_EXT4: | |
580 | case HW_FS_EXT4_WO_JOURNAL: | |
581 | filesystem = "ext4"; | |
582 | break; | |
583 | ||
584 | default: | |
585 | assert(0); | |
586 | } | |
587 | ||
588 | // root | |
589 | int r = hw_mount(dest->part_root, prefix, filesystem, 0); | |
590 | if (r) | |
591 | return r; | |
592 | ||
593 | // boot | |
594 | if (*dest->part_boot) { | |
595 | snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_BOOT); | |
596 | mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO); | |
597 | ||
598 | r = hw_mount(dest->part_boot, target, filesystem, 0); | |
599 | if (r) { | |
600 | hw_umount_filesystems(dest, prefix); | |
601 | ||
602 | return r; | |
603 | } | |
604 | } | |
605 | ||
606 | // data | |
607 | if (*dest->part_data) { | |
608 | snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_DATA); | |
609 | mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO); | |
610 | ||
611 | r = hw_mount(dest->part_data, target, filesystem, 0); | |
612 | if (r) { | |
613 | hw_umount_filesystems(dest, prefix); | |
614 | ||
615 | return r; | |
616 | } | |
617 | } | |
618 | ||
619 | // swap | |
620 | if (*dest->part_swap) { | |
621 | r = swapon(dest->part_swap, 0); | |
622 | if (r) { | |
623 | hw_umount_filesystems(dest, prefix); | |
624 | ||
625 | return r; | |
626 | } | |
627 | } | |
628 | ||
629 | // bind-mount misc filesystems | |
630 | char** otherfs = other_filesystems; | |
631 | while (*otherfs) { | |
632 | snprintf(target, sizeof(target), "%s%s", prefix, *otherfs); | |
633 | ||
634 | mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO); | |
635 | r = hw_mount(*otherfs, target, NULL, MS_BIND); | |
636 | if (r) { | |
637 | hw_umount_filesystems(dest, prefix); | |
638 | ||
639 | return r; | |
640 | } | |
641 | ||
642 | otherfs++; | |
643 | } | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
648 | int hw_umount_filesystems(struct hw_destination* dest, const char* prefix) { | |
649 | // boot | |
650 | if (*dest->part_boot) { | |
651 | hw_umount(dest->part_boot); | |
652 | } | |
653 | ||
654 | // data | |
655 | if (*dest->part_data) { | |
656 | hw_umount(dest->part_data); | |
657 | } | |
658 | ||
659 | // root | |
660 | hw_umount(dest->part_root); | |
661 | ||
662 | // swap | |
663 | if (*dest->part_swap) { | |
664 | swapoff(dest->part_swap); | |
665 | } | |
666 | ||
667 | // misc filesystems | |
668 | char target[STRING_SIZE]; | |
669 | char** otherfs = other_filesystems; | |
670 | ||
671 | while (*otherfs) { | |
672 | snprintf(target, sizeof(target), "%s%s", prefix, *otherfs++); | |
673 | hw_umount(target); | |
674 | } | |
675 | ||
676 | return 0; | |
677 | } |