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f0fa1795 MT |
1 | /*############################################################################# |
2 | # # | |
3 | # IPFire - An Open Source Firewall Distribution # | |
e404dab5 | 4 | # Copyright (C) 2007-2022 IPFire Team <info@ipfire.org> # |
f0fa1795 MT |
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 | 26 | #include <blkid/blkid.h> |
ade96ba8 | 27 | #include <errno.h> |
d7dd283b | 28 | #include <fcntl.h> |
f0fa1795 | 29 | #include <libudev.h> |
c0511f3a | 30 | #include <linux/loop.h> |
d7dd283b | 31 | #include <math.h> |
f0fa1795 MT |
32 | #include <stdio.h> |
33 | #include <stdlib.h> | |
34 | #include <string.h> | |
d7dd283b | 35 | #include <sys/ioctl.h> |
f0fa1795 | 36 | #include <sys/mount.h> |
c0511f3a | 37 | #include <sys/stat.h> |
25fcce25 | 38 | #include <sys/swap.h> |
5be66d81 | 39 | #include <sys/sysinfo.h> |
92e78233 | 40 | #include <sys/utsname.h> |
f0fa1795 MT |
41 | #include <unistd.h> |
42 | ||
5315fae6 MT |
43 | #include <libsmooth.h> |
44 | ||
f0fa1795 | 45 | #include "hw.h" |
25fcce25 | 46 | |
8e3b022a SS |
47 | extern FILE* flog; |
48 | ||
46b56e20 | 49 | static int system_chroot(const char* output, const char* path, const char* cmd) { |
f5007e9c MT |
50 | char chroot_cmd[STRING_SIZE]; |
51 | ||
52 | snprintf(chroot_cmd, sizeof(chroot_cmd), "/usr/sbin/chroot %s %s", path, cmd); | |
53 | ||
46b56e20 | 54 | return mysystem(output, chroot_cmd); |
f5007e9c MT |
55 | } |
56 | ||
0e0346cc MT |
57 | static int hw_mkdir(const char *dir) { |
58 | char tmp[STRING_SIZE]; | |
59 | char *p = NULL; | |
60 | size_t len; | |
61 | int r; | |
62 | ||
63 | snprintf(tmp, sizeof(tmp),"%s",dir); | |
64 | len = strlen(tmp); | |
65 | ||
66 | if (tmp[len - 1] == '/') { | |
67 | tmp[len - 1] = 0; | |
68 | } | |
69 | ||
70 | for (p = tmp + 1; *p; p++) { | |
71 | if (*p == '/') { | |
72 | *p = 0; | |
73 | ||
74 | // Create target if it does not exist | |
75 | if (access(tmp, X_OK) != 0) { | |
76 | r = mkdir(tmp, S_IRWXU|S_IRWXG|S_IRWXO); | |
77 | ||
78 | if (r) { | |
79 | return r; | |
80 | } | |
81 | } | |
82 | ||
83 | *p = '/'; | |
84 | } | |
85 | } | |
86 | ||
87 | // Create target if it does not exist | |
88 | if (access(tmp, X_OK) != 0) { | |
89 | r = mkdir(tmp, S_IRWXU|S_IRWXG|S_IRWXO); | |
90 | ||
91 | if (r) { | |
92 | return r; | |
93 | } | |
94 | } | |
95 | ||
96 | return 0; | |
97 | } | |
98 | ||
f0fa1795 | 99 | struct hw* hw_init() { |
5fb499f1 | 100 | struct hw* hw = calloc(1, sizeof(*hw)); |
f0fa1795 MT |
101 | assert(hw); |
102 | ||
103 | // Initialize libudev | |
104 | hw->udev = udev_new(); | |
105 | if (!hw->udev) { | |
106 | fprintf(stderr, "Could not create udev instance\n"); | |
107 | exit(1); | |
108 | } | |
109 | ||
92e78233 MT |
110 | // What architecture are we running on? |
111 | struct utsname uname_data; | |
112 | int ret = uname(&uname_data); | |
113 | if (ret == 0) | |
114 | snprintf(hw->arch, sizeof(hw->arch), "%s", uname_data.machine); | |
115 | ||
8fbadfc7 | 116 | // Should we install in EFI mode? |
7dc7880d MT |
117 | if ((strcmp(hw->arch, "x86_64") == 0) || (strcmp(hw->arch, "aarch64") == 0)) |
118 | hw->efi = 1; | |
5fb499f1 | 119 | |
f0fa1795 MT |
120 | return hw; |
121 | } | |
122 | ||
123 | void hw_free(struct hw* hw) { | |
124 | if (hw->udev) | |
125 | udev_unref(hw->udev); | |
126 | ||
127 | free(hw); | |
128 | } | |
129 | ||
130 | static int strstartswith(const char* a, const char* b) { | |
131 | return (strncmp(a, b, strlen(b)) == 0); | |
132 | } | |
133 | ||
c0511f3a MT |
134 | static int setup_loop_device(const char* source, const char* device) { |
135 | int file_fd = open(source, O_RDWR); | |
136 | if (file_fd < 0) | |
137 | goto ERROR; | |
138 | ||
139 | int device_fd = -1; | |
140 | if ((device_fd = open(device, O_RDWR)) < 0) | |
141 | goto ERROR; | |
142 | ||
143 | if (ioctl(device_fd, LOOP_SET_FD, file_fd) < 0) | |
144 | goto ERROR; | |
145 | ||
146 | close(file_fd); | |
147 | close(device_fd); | |
148 | ||
149 | return 0; | |
150 | ||
151 | ERROR: | |
152 | if (file_fd >= 0) | |
153 | close(file_fd); | |
154 | ||
155 | if (device_fd >= 0) { | |
156 | ioctl(device_fd, LOOP_CLR_FD, 0); | |
157 | close(device_fd); | |
158 | } | |
159 | ||
160 | return -1; | |
161 | } | |
162 | ||
25fcce25 | 163 | int hw_mount(const char* source, const char* target, const char* fs, int flags) { |
c0511f3a MT |
164 | const char* loop_device = "/dev/loop0"; |
165 | ||
85f2892b MT |
166 | // Create target if it does not exist |
167 | if (access(target, X_OK) != 0) | |
168 | mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO); | |
169 | ||
c0511f3a MT |
170 | struct stat st; |
171 | stat(source, &st); | |
172 | ||
173 | if (S_ISREG(st.st_mode)) { | |
174 | int r = setup_loop_device(source, loop_device); | |
175 | if (r == 0) { | |
176 | source = loop_device; | |
177 | } else { | |
178 | return -1; | |
179 | } | |
180 | } | |
181 | ||
366b40c7 | 182 | return mount(source, target, fs, flags, NULL); |
f0fa1795 MT |
183 | } |
184 | ||
ced15fdf MT |
185 | static int hw_bind_mount(const char* source, const char* prefix) { |
186 | if (!source || !prefix) { | |
187 | errno = EINVAL; | |
188 | return 1; | |
189 | } | |
190 | ||
191 | char target[PATH_MAX]; | |
192 | int r; | |
193 | ||
194 | // Format target | |
195 | r = snprintf(target, sizeof(target) - 1, "%s/%s", prefix, source); | |
196 | if (r < 0) | |
197 | return 1; | |
198 | ||
199 | // Ensure target exists | |
200 | mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO); | |
ade96ba8 | 201 | |
ced15fdf MT |
202 | return hw_mount(source, target, NULL, MS_BIND); |
203 | } | |
204 | ||
205 | int hw_umount(const char* source, const char* prefix) { | |
206 | char target[PATH_MAX]; | |
207 | int r; | |
ade96ba8 | 208 | |
ced15fdf MT |
209 | if (prefix) |
210 | r = snprintf(target, sizeof(target) - 1, "%s/%s", prefix, source); | |
211 | else | |
212 | r = snprintf(target, sizeof(target) - 1, "%s", source); | |
213 | if (r < 0) | |
214 | return r; | |
215 | ||
216 | // Perform umount | |
217 | r = umount2(target, 0); | |
218 | if (r) { | |
219 | switch (errno) { | |
220 | // Try again with force if umount wasn't successful | |
221 | case EBUSY: | |
222 | sleep(1); | |
223 | ||
224 | r = umount2(target, MNT_FORCE); | |
225 | break; | |
226 | ||
227 | // target wasn't a mountpoint. Ignore. | |
228 | case EINVAL: | |
229 | r = 0; | |
230 | break; | |
91588cb4 MT |
231 | |
232 | // target doesn't exist | |
233 | case ENOENT: | |
234 | r = 0; | |
235 | break; | |
ced15fdf | 236 | } |
ade96ba8 MT |
237 | } |
238 | ||
239 | return r; | |
f0fa1795 MT |
240 | } |
241 | ||
242 | static int hw_test_source_medium(const char* path) { | |
25fcce25 | 243 | int ret = hw_mount(path, SOURCE_MOUNT_PATH, "iso9660", MS_RDONLY); |
f0fa1795 | 244 | |
68a50dd1 AF |
245 | if (ret != 0) { |
246 | // 2nd try, ntfs for a rufus converted usb key | |
247 | ret = hw_mount(path, SOURCE_MOUNT_PATH, "ntfs3", MS_RDONLY); | |
248 | } | |
249 | if (ret != 0) { | |
250 | // 3rd try, vfat for a rufus converted usb key | |
251 | ret = hw_mount(path, SOURCE_MOUNT_PATH, "vfat", MS_RDONLY); | |
252 | } | |
253 | ||
f0fa1795 MT |
254 | // If the source could not be mounted we |
255 | // cannot proceed. | |
5315fae6 | 256 | if (ret != 0) |
f0fa1795 MT |
257 | return ret; |
258 | ||
259 | // Check if the test file exists. | |
5315fae6 | 260 | ret = access(SOURCE_TEST_FILE, R_OK); |
f0fa1795 MT |
261 | |
262 | // Umount the test device. | |
ced15fdf | 263 | hw_umount(SOURCE_MOUNT_PATH, NULL); |
f0fa1795 | 264 | |
fb76fc51 | 265 | return ret; |
f0fa1795 MT |
266 | } |
267 | ||
268 | char* hw_find_source_medium(struct hw* hw) { | |
269 | char* ret = NULL; | |
270 | ||
271 | struct udev_enumerate* enumerate = udev_enumerate_new(hw->udev); | |
272 | ||
273 | udev_enumerate_add_match_subsystem(enumerate, "block"); | |
274 | udev_enumerate_scan_devices(enumerate); | |
275 | ||
276 | struct udev_list_entry* devices = udev_enumerate_get_list_entry(enumerate); | |
277 | ||
278 | struct udev_list_entry* dev_list_entry; | |
279 | udev_list_entry_foreach(dev_list_entry, devices) { | |
280 | const char* path = udev_list_entry_get_name(dev_list_entry); | |
281 | struct udev_device* dev = udev_device_new_from_syspath(hw->udev, path); | |
282 | ||
283 | const char* dev_path = udev_device_get_devnode(dev); | |
284 | ||
285 | // Skip everything what we cannot work with | |
286 | if (strstartswith(dev_path, "/dev/loop") || strstartswith(dev_path, "/dev/fd") || | |
4a0d9bef | 287 | strstartswith(dev_path, "/dev/ram") || strstartswith(dev_path, "/dev/md")) |
f0fa1795 MT |
288 | continue; |
289 | ||
5315fae6 | 290 | if (hw_test_source_medium(dev_path) == 0) { |
f0fa1795 MT |
291 | ret = strdup(dev_path); |
292 | } | |
293 | ||
294 | udev_device_unref(dev); | |
295 | ||
296 | // If a suitable device was found the search will end. | |
297 | if (ret) | |
298 | break; | |
299 | } | |
300 | ||
301 | udev_enumerate_unref(enumerate); | |
302 | ||
303 | return ret; | |
304 | } | |
d7dd283b MT |
305 | |
306 | static struct hw_disk** hw_create_disks() { | |
307 | struct hw_disk** ret = malloc(sizeof(*ret) * (HW_MAX_DISKS + 1)); | |
308 | ||
309 | return ret; | |
310 | } | |
311 | ||
312 | static unsigned long long hw_block_device_get_size(const char* dev) { | |
313 | int fd = open(dev, O_RDONLY); | |
314 | if (fd < 0) | |
315 | return 0; | |
316 | ||
317 | unsigned long long size = blkid_get_dev_size(fd); | |
318 | close(fd); | |
319 | ||
320 | return size; | |
321 | } | |
322 | ||
ee00d203 | 323 | struct hw_disk** hw_find_disks(struct hw* hw, const char* sourcedrive) { |
d7dd283b MT |
324 | struct hw_disk** ret = hw_create_disks(); |
325 | struct hw_disk** disks = ret; | |
326 | ||
68a50dd1 | 327 | // Determine the disk device of source if it is a partition |
16640487 | 328 | const char* sourcedisk = NULL; |
68a50dd1 AF |
329 | char syssource[PATH_MAX]; |
330 | (void)snprintf(syssource, sizeof(syssource) - 1, "/sys/class/block/%s", sourcedrive + 5); | |
331 | struct udev_device* s_dev = udev_device_new_from_syspath(hw->udev, syssource); | |
332 | const char* s_devtype = udev_device_get_property_value(s_dev, "DEVTYPE"); | |
333 | if (s_devtype && (strcmp(s_devtype, "partition") == 0)) { | |
334 | struct udev_device* p_dev = udev_device_get_parent_with_subsystem_devtype(s_dev,"block","disk"); | |
335 | if (p_dev) { | |
336 | sourcedisk = udev_device_get_devnode(p_dev); | |
337 | } | |
338 | } | |
339 | if (!sourcedisk) sourcedisk = sourcedrive; | |
340 | ||
d7dd283b MT |
341 | struct udev_enumerate* enumerate = udev_enumerate_new(hw->udev); |
342 | ||
343 | udev_enumerate_add_match_subsystem(enumerate, "block"); | |
344 | udev_enumerate_scan_devices(enumerate); | |
345 | ||
346 | struct udev_list_entry* devices = udev_enumerate_get_list_entry(enumerate); | |
347 | ||
348 | struct udev_list_entry* dev_list_entry; | |
349 | unsigned int i = HW_MAX_DISKS; | |
350 | udev_list_entry_foreach(dev_list_entry, devices) { | |
351 | const char* path = udev_list_entry_get_name(dev_list_entry); | |
352 | struct udev_device* dev = udev_device_new_from_syspath(hw->udev, path); | |
353 | ||
354 | const char* dev_path = udev_device_get_devnode(dev); | |
355 | ||
356 | // Skip everything what we cannot work with | |
357 | if (strstartswith(dev_path, "/dev/loop") || strstartswith(dev_path, "/dev/fd") || | |
4a0d9bef MT |
358 | strstartswith(dev_path, "/dev/ram") || strstartswith(dev_path, "/dev/sr") || |
359 | strstartswith(dev_path, "/dev/md")) { | |
d7dd283b MT |
360 | udev_device_unref(dev); |
361 | continue; | |
362 | } | |
363 | ||
68a50dd1 AF |
364 | // Skip sourcedisk if we need to |
365 | if (sourcedisk && (strcmp(dev_path, sourcedisk) == 0)) { | |
d7dd283b MT |
366 | udev_device_unref(dev); |
367 | continue; | |
368 | } | |
369 | ||
ee00d203 MT |
370 | // DEVTYPE must be disk (otherwise we will see all sorts of partitions here) |
371 | const char* devtype = udev_device_get_property_value(dev, "DEVTYPE"); | |
372 | if (devtype && (strcmp(devtype, "disk") != 0)) { | |
d7dd283b MT |
373 | udev_device_unref(dev); |
374 | continue; | |
375 | } | |
376 | ||
377 | // Skip devices with a size of zero | |
378 | unsigned long long size = hw_block_device_get_size(dev_path); | |
379 | if (size == 0) { | |
380 | udev_device_unref(dev); | |
381 | continue; | |
382 | } | |
383 | ||
384 | struct hw_disk* disk = malloc(sizeof(*disk)); | |
385 | if (disk == NULL) | |
386 | return NULL; | |
387 | ||
388 | disk->ref = 1; | |
389 | ||
390 | strncpy(disk->path, dev_path, sizeof(disk->path)); | |
0c8b2d99 | 391 | const char* p = disk->path + 5; |
d7dd283b MT |
392 | |
393 | disk->size = size; | |
394 | ||
395 | // Vendor | |
396 | const char* vendor = udev_device_get_property_value(dev, "ID_VENDOR"); | |
397 | if (!vendor) | |
398 | vendor = udev_device_get_sysattr_value(dev, "vendor"); | |
399 | if (!vendor) | |
400 | vendor = udev_device_get_sysattr_value(dev, "manufacturer"); | |
d7dd283b | 401 | |
4c812463 MT |
402 | if (vendor) |
403 | strncpy(disk->vendor, vendor, sizeof(disk->vendor)); | |
404 | else | |
405 | *disk->vendor = '\0'; | |
d7dd283b MT |
406 | |
407 | // Model | |
408 | const char* model = udev_device_get_property_value(dev, "ID_MODEL"); | |
409 | if (!model) | |
410 | model = udev_device_get_sysattr_value(dev, "model"); | |
411 | if (!model) | |
412 | model = udev_device_get_sysattr_value(dev, "product"); | |
d7dd283b | 413 | |
4c812463 MT |
414 | if (model) |
415 | strncpy(disk->model, model, sizeof(disk->model)); | |
416 | else | |
417 | *disk->model = '\0'; | |
418 | ||
419 | // Format description | |
420 | char size_str[STRING_SIZE]; | |
421 | snprintf(size_str, sizeof(size_str), "%4.1fGB", (double)disk->size / pow(1024, 3)); | |
d7dd283b | 422 | |
4c812463 MT |
423 | if (*disk->vendor && *disk->model) { |
424 | snprintf(disk->description, sizeof(disk->description), | |
0c8b2d99 | 425 | "%s - %s - %s - %s", size_str, p, disk->vendor, disk->model); |
4c812463 MT |
426 | |
427 | } else if (*disk->vendor || *disk->model) { | |
428 | snprintf(disk->description, sizeof(disk->description), | |
0c8b2d99 | 429 | "%s - %s - %s", size_str, p, (*disk->vendor) ? disk->vendor : disk->model); |
4c812463 MT |
430 | |
431 | } else { | |
432 | snprintf(disk->description, sizeof(disk->description), | |
0c8b2d99 | 433 | "%s - %s", size_str, p); |
4c812463 | 434 | } |
d7dd283b | 435 | |
29afd408 MT |
436 | // Cut off the description string after 40 characters |
437 | disk->description[41] = '\0'; | |
438 | ||
d7dd283b MT |
439 | *disks++ = disk; |
440 | ||
441 | if (--i == 0) | |
442 | break; | |
443 | ||
444 | udev_device_unref(dev); | |
445 | } | |
446 | ||
447 | udev_enumerate_unref(enumerate); | |
448 | ||
449 | *disks = NULL; | |
450 | ||
451 | return ret; | |
452 | } | |
453 | ||
454 | void hw_free_disks(struct hw_disk** disks) { | |
455 | struct hw_disk** disk = disks; | |
456 | ||
457 | while (*disk != NULL) { | |
458 | if (--(*disk)->ref == 0) | |
459 | free(*disk); | |
460 | ||
461 | disk++; | |
462 | } | |
463 | ||
464 | free(disks); | |
465 | } | |
466 | ||
16640487 | 467 | unsigned int hw_count_disks(struct hw_disk** disks) { |
d7dd283b MT |
468 | unsigned int ret = 0; |
469 | ||
470 | while (*disks++) | |
471 | ret++; | |
472 | ||
473 | return ret; | |
474 | } | |
475 | ||
476 | struct hw_disk** hw_select_disks(struct hw_disk** disks, int* selection) { | |
477 | struct hw_disk** ret = hw_create_disks(); | |
478 | struct hw_disk** selected_disks = ret; | |
479 | ||
16640487 | 480 | unsigned int num_disks = hw_count_disks(disks); |
d7dd283b MT |
481 | |
482 | for (unsigned int i = 0; i < num_disks; i++) { | |
ee43f517 | 483 | if (!selection || selection[i]) { |
d7dd283b MT |
484 | struct hw_disk *selected_disk = disks[i]; |
485 | selected_disk->ref++; | |
486 | ||
487 | *selected_disks++ = selected_disk; | |
488 | } | |
489 | } | |
490 | ||
491 | // Set sentinel | |
492 | *selected_disks = NULL; | |
493 | ||
494 | return ret; | |
495 | } | |
496 | ||
16640487 | 497 | struct hw_disk** hw_select_first_disk(struct hw_disk** disks) { |
a3e135c8 MT |
498 | struct hw_disk** ret = hw_create_disks(); |
499 | struct hw_disk** selected_disks = ret; | |
500 | ||
501 | unsigned int num_disks = hw_count_disks(disks); | |
502 | assert(num_disks > 0); | |
503 | ||
504 | for (unsigned int i = 0; i < num_disks; i++) { | |
505 | struct hw_disk *disk = disks[i]; | |
506 | disk->ref++; | |
507 | ||
508 | *selected_disks++ = disk; | |
509 | break; | |
510 | } | |
511 | ||
512 | // Set sentinel | |
513 | *selected_disks = NULL; | |
514 | ||
515 | return ret; | |
516 | } | |
517 | ||
25fcce25 MT |
518 | static unsigned long long hw_swap_size(struct hw_destination* dest) { |
519 | unsigned long long memory = hw_memory(); | |
520 | ||
521 | unsigned long long swap_size = memory / 4; | |
522 | ||
523 | // Min. swap size is 128MB | |
524 | if (swap_size < MB2BYTES(128)) | |
525 | swap_size = MB2BYTES(128); | |
526 | ||
527 | // Cap swap size to 1GB | |
528 | else if (swap_size > MB2BYTES(1024)) | |
529 | swap_size = MB2BYTES(1024); | |
530 | ||
531 | return swap_size; | |
532 | } | |
533 | ||
25fcce25 | 534 | static unsigned long long hw_boot_size(struct hw_destination* dest) { |
ffdc6fbb | 535 | return MB2BYTES(512); |
25fcce25 MT |
536 | } |
537 | ||
a691d4b3 MT |
538 | static int hw_device_has_p_suffix(const struct hw_destination* dest) { |
539 | // All RAID devices have the p suffix. | |
540 | if (dest->is_raid) | |
541 | return 1; | |
542 | ||
543 | // Devices with a number at the end have the p suffix, too. | |
544 | // e.g. mmcblk0, cciss0 | |
126d3570 | 545 | unsigned int last_char = strlen(dest->path) - 1; |
a691d4b3 MT |
546 | if ((dest->path[last_char] >= '0') && (dest->path[last_char] <= '9')) |
547 | return 1; | |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
92e78233 | 552 | static int hw_calculate_partition_table(struct hw* hw, struct hw_destination* dest, int disable_swap) { |
48d6a112 MT |
553 | char path[DEV_SIZE]; |
554 | int part_idx = 1; | |
555 | ||
a691d4b3 MT |
556 | snprintf(path, sizeof(path), "%s%s", dest->path, |
557 | hw_device_has_p_suffix(dest) ? "p" : ""); | |
48d6a112 MT |
558 | dest->part_boot_idx = 0; |
559 | ||
25fcce25 MT |
560 | // Determine the size of the target block device |
561 | if (dest->is_raid) { | |
562 | dest->size = (dest->disk1->size >= dest->disk2->size) ? | |
5315fae6 | 563 | dest->disk2->size : dest->disk1->size; |
22581f51 MT |
564 | |
565 | // The RAID will install some metadata at the end of the disk | |
566 | // and we will save up some space for that. | |
567 | dest->size -= MB2BYTES(2); | |
25fcce25 MT |
568 | } else { |
569 | dest->size = dest->disk1->size; | |
570 | } | |
571 | ||
802a123b MT |
572 | // As we add some extra space before the beginning of the first |
573 | // partition, we need to substract that here. | |
574 | dest->size -= MB2BYTES(1); | |
575 | ||
576 | // Add some more space for partition tables, etc. | |
577 | dest->size -= MB2BYTES(1); | |
578 | ||
c577571e MT |
579 | // The disk has to have at least 2GB |
580 | if (dest->size <= MB2BYTES(2048)) | |
581 | return -1; | |
582 | ||
48d6a112 MT |
583 | // Determine partition table |
584 | dest->part_table = HW_PART_TABLE_MSDOS; | |
585 | ||
586 | // Disks over 2TB need to use GPT | |
587 | if (dest->size >= MB2BYTES(2047 * 1024)) | |
588 | dest->part_table = HW_PART_TABLE_GPT; | |
589 | ||
590 | // We also use GPT on raid disks by default | |
591 | else if (dest->is_raid) | |
592 | dest->part_table = HW_PART_TABLE_GPT; | |
593 | ||
594 | // When using GPT, GRUB2 needs a little bit of space to put | |
595 | // itself in. | |
5689fc72 | 596 | if (dest->part_table == HW_PART_TABLE_GPT) { |
48d6a112 MT |
597 | snprintf(dest->part_bootldr, sizeof(dest->part_bootldr), |
598 | "%s%d", path, part_idx); | |
599 | ||
600 | dest->size_bootldr = MB2BYTES(4); | |
601 | ||
602 | dest->part_boot_idx = part_idx++; | |
603 | } else { | |
604 | *dest->part_bootldr = '\0'; | |
605 | dest->size_bootldr = 0; | |
606 | } | |
607 | ||
58a46f0b SS |
608 | // Disable seperate boot partition for BTRFS installations. |
609 | if(dest->filesystem == HW_FS_BTRFS) { | |
610 | dest->size_boot = 0; | |
611 | } else { | |
612 | dest->size_boot = hw_boot_size(dest); | |
613 | } | |
c577571e | 614 | |
92e78233 MT |
615 | // Create an EFI partition when running in EFI mode |
616 | if (hw->efi) | |
617 | dest->size_boot_efi = MB2BYTES(32); | |
618 | else | |
619 | dest->size_boot_efi = 0; | |
620 | ||
c577571e MT |
621 | // Determine the size of the data partition. |
622 | unsigned long long space_left = dest->size - \ | |
92e78233 | 623 | (dest->size_bootldr + dest->size_boot + dest->size_boot_efi); |
c577571e MT |
624 | |
625 | // If we have less than 2GB left, we disable swap | |
626 | if (space_left <= MB2BYTES(2048)) | |
627 | disable_swap = 1; | |
25fcce25 | 628 | |
a8fca245 MT |
629 | // Should we use swap? |
630 | if (disable_swap) | |
631 | dest->size_swap = 0; | |
632 | else | |
633 | dest->size_swap = hw_swap_size(dest); | |
634 | ||
c577571e MT |
635 | // Subtract swap |
636 | space_left -= dest->size_swap; | |
25fcce25 | 637 | |
c577571e MT |
638 | // Root is getting what ever is left |
639 | dest->size_root = space_left; | |
25fcce25 MT |
640 | |
641 | // Set partition names | |
25fcce25 | 642 | if (dest->size_boot > 0) { |
48d6a112 MT |
643 | if (dest->part_boot_idx == 0) |
644 | dest->part_boot_idx = part_idx; | |
25fcce25 MT |
645 | |
646 | snprintf(dest->part_boot, sizeof(dest->part_boot), "%s%d", path, part_idx++); | |
647 | } else | |
648 | *dest->part_boot = '\0'; | |
649 | ||
92e78233 MT |
650 | if (dest->size_boot_efi > 0) { |
651 | dest->part_boot_efi_idx = part_idx; | |
652 | ||
653 | snprintf(dest->part_boot_efi, sizeof(dest->part_boot_efi), | |
654 | "%s%d", path, part_idx++); | |
58e840bd | 655 | } else { |
92e78233 | 656 | *dest->part_boot_efi = '\0'; |
58e840bd MT |
657 | dest->part_boot_efi_idx = 0; |
658 | } | |
92e78233 | 659 | |
25fcce25 MT |
660 | if (dest->size_swap > 0) |
661 | snprintf(dest->part_swap, sizeof(dest->part_swap), "%s%d", path, part_idx++); | |
662 | else | |
663 | *dest->part_swap = '\0'; | |
664 | ||
665 | // There is always a root partition | |
48d6a112 | 666 | if (dest->part_boot_idx == 0) |
25fcce25 MT |
667 | dest->part_boot_idx = part_idx; |
668 | ||
669 | snprintf(dest->part_root, sizeof(dest->part_root), "%s%d", path, part_idx++); | |
670 | ||
25fcce25 MT |
671 | return 0; |
672 | } | |
673 | ||
ad73749d SS |
674 | struct hw_destination* hw_make_destination(struct hw* hw, int part_type, struct hw_disk** disks, |
675 | int disable_swap, int filesystem) { | |
d7dd283b MT |
676 | struct hw_destination* dest = malloc(sizeof(*dest)); |
677 | ||
ad73749d SS |
678 | // Assign filesystem |
679 | dest->filesystem = filesystem; | |
680 | ||
d7dd283b MT |
681 | if (part_type == HW_PART_TYPE_NORMAL) { |
682 | dest->disk1 = *disks; | |
683 | dest->disk2 = NULL; | |
684 | ||
685 | strncpy(dest->path, dest->disk1->path, sizeof(dest->path)); | |
686 | ||
687 | } else if (part_type == HW_PART_TYPE_RAID1) { | |
688 | dest->disk1 = *disks++; | |
689 | dest->disk2 = *disks; | |
4a0d9bef | 690 | dest->raid_level = 1; |
d7dd283b MT |
691 | |
692 | snprintf(dest->path, sizeof(dest->path), "/dev/md0"); | |
693 | } | |
694 | ||
695 | // Is this a RAID device? | |
696 | dest->is_raid = (part_type > HW_PART_TYPE_NORMAL); | |
697 | ||
92e78233 | 698 | int r = hw_calculate_partition_table(hw, dest, disable_swap); |
25fcce25 MT |
699 | if (r) |
700 | return NULL; | |
d7dd283b | 701 | |
d7dd283b MT |
702 | return dest; |
703 | } | |
c4e96674 MT |
704 | |
705 | unsigned long long hw_memory() { | |
5be66d81 | 706 | struct sysinfo si; |
c4e96674 | 707 | |
5be66d81 MT |
708 | int r = sysinfo(&si); |
709 | if (r < 0) | |
710 | return 0; | |
c4e96674 | 711 | |
5be66d81 | 712 | return si.totalram; |
c4e96674 | 713 | } |
25fcce25 | 714 | |
d2f993a7 MT |
715 | static int hw_zero_out_device(const char* path, int bytes) { |
716 | char block[512]; | |
717 | memset(block, 0, sizeof(block)); | |
718 | ||
719 | int blocks = bytes / sizeof(block); | |
720 | ||
721 | int fd = open(path, O_WRONLY); | |
722 | if (fd < 0) | |
723 | return -1; | |
724 | ||
725 | unsigned int bytes_written = 0; | |
726 | while (blocks-- > 0) { | |
727 | bytes_written += write(fd, block, sizeof(block)); | |
728 | } | |
729 | ||
730 | fsync(fd); | |
731 | close(fd); | |
732 | ||
733 | return bytes_written; | |
734 | } | |
735 | ||
0e491487 MT |
736 | static int try_open(const char* path) { |
737 | FILE* f = fopen(path, "r"); | |
738 | if (f) { | |
739 | fclose(f); | |
740 | return 0; | |
741 | } | |
742 | ||
743 | return -1; | |
744 | } | |
745 | ||
46b56e20 | 746 | int hw_create_partitions(struct hw_destination* dest, const char* output) { |
d2f993a7 MT |
747 | // Before we write a new partition table to the disk, we will erase |
748 | // the first couple of megabytes at the beginning of the device to | |
749 | // get rid of all left other things like bootloaders and partition tables. | |
750 | // This solves some problems when changing from MBR to GPT partitions or | |
751 | // the other way around. | |
752 | int r = hw_zero_out_device(dest->path, MB2BYTES(10)); | |
753 | if (r <= 0) | |
754 | return r; | |
25fcce25 | 755 | |
d2f993a7 | 756 | char* cmd = NULL; |
25fcce25 MT |
757 | asprintf(&cmd, "/usr/sbin/parted -s %s -a optimal", dest->path); |
758 | ||
759 | // Set partition type | |
760 | if (dest->part_table == HW_PART_TABLE_MSDOS) | |
761 | asprintf(&cmd, "%s mklabel msdos", cmd); | |
762 | else if (dest->part_table == HW_PART_TABLE_GPT) | |
763 | asprintf(&cmd, "%s mklabel gpt", cmd); | |
764 | ||
802a123b | 765 | unsigned long long part_start = MB2BYTES(1); |
25fcce25 | 766 | |
48d6a112 | 767 | if (*dest->part_bootldr) { |
802a123b | 768 | asprintf(&cmd, "%s mkpart %s ext2 %lluB %lluB", cmd, |
48d6a112 | 769 | (dest->part_table == HW_PART_TABLE_GPT) ? "BOOTLDR" : "primary", |
802a123b | 770 | part_start, part_start + dest->size_bootldr - 1); |
48d6a112 MT |
771 | |
772 | part_start += dest->size_bootldr; | |
773 | } | |
774 | ||
25fcce25 | 775 | if (*dest->part_boot) { |
802a123b | 776 | asprintf(&cmd, "%s mkpart %s ext2 %lluB %lluB", cmd, |
25fcce25 | 777 | (dest->part_table == HW_PART_TABLE_GPT) ? "BOOT" : "primary", |
802a123b | 778 | part_start, part_start + dest->size_boot - 1); |
25fcce25 MT |
779 | |
780 | part_start += dest->size_boot; | |
781 | } | |
782 | ||
92e78233 MT |
783 | if (*dest->part_boot_efi) { |
784 | asprintf(&cmd, "%s mkpart %s fat32 %lluB %lluB", cmd, | |
785 | (dest->part_table == HW_PART_TABLE_GPT) ? "ESP" : "primary", | |
786 | part_start, part_start + dest->size_boot_efi - 1); | |
787 | ||
788 | part_start += dest->size_boot_efi; | |
789 | } | |
790 | ||
25fcce25 | 791 | if (*dest->part_swap) { |
802a123b | 792 | asprintf(&cmd, "%s mkpart %s linux-swap %lluB %lluB", cmd, |
25fcce25 | 793 | (dest->part_table == HW_PART_TABLE_GPT) ? "SWAP" : "primary", |
802a123b | 794 | part_start, part_start + dest->size_swap - 1); |
25fcce25 MT |
795 | |
796 | part_start += dest->size_swap; | |
797 | } | |
798 | ||
799 | if (*dest->part_root) { | |
802a123b | 800 | asprintf(&cmd, "%s mkpart %s ext2 %lluB %lluB", cmd, |
25fcce25 | 801 | (dest->part_table == HW_PART_TABLE_GPT) ? "ROOT" : "primary", |
802a123b | 802 | part_start, part_start + dest->size_root - 1); |
25fcce25 MT |
803 | |
804 | part_start += dest->size_root; | |
805 | } | |
806 | ||
e9cf574d | 807 | if (dest->part_boot_idx > 0) |
25fcce25 MT |
808 | asprintf(&cmd, "%s set %d boot on", cmd, dest->part_boot_idx); |
809 | ||
92e78233 MT |
810 | if (dest->part_boot_efi_idx > 0) |
811 | asprintf(&cmd, "%s set %d esp on", cmd, dest->part_boot_efi_idx); | |
812 | ||
e9cf574d | 813 | if (dest->part_table == HW_PART_TABLE_GPT) { |
48d6a112 MT |
814 | if (*dest->part_bootldr) { |
815 | asprintf(&cmd, "%s set %d bios_grub on", cmd, dest->part_boot_idx); | |
816 | } | |
25fcce25 MT |
817 | } |
818 | ||
46b56e20 | 819 | r = mysystem(output, cmd); |
25fcce25 | 820 | |
268090a8 MT |
821 | // Wait until the system re-read the partition table |
822 | if (r == 0) { | |
823 | unsigned int counter = 10; | |
824 | ||
825 | while (counter-- > 0) { | |
826 | sleep(1); | |
827 | ||
0e491487 | 828 | if (*dest->part_bootldr && (try_open(dest->part_bootldr) != 0)) |
48d6a112 MT |
829 | continue; |
830 | ||
0e491487 | 831 | if (*dest->part_boot && (try_open(dest->part_boot) != 0)) |
268090a8 MT |
832 | continue; |
833 | ||
92e78233 MT |
834 | if (*dest->part_boot_efi && (try_open(dest->part_boot_efi) != 0)) |
835 | continue; | |
836 | ||
0e491487 | 837 | if (*dest->part_swap && (try_open(dest->part_swap) != 0)) |
268090a8 MT |
838 | continue; |
839 | ||
0e491487 | 840 | if (*dest->part_root && (try_open(dest->part_root) != 0)) |
268090a8 MT |
841 | continue; |
842 | ||
268090a8 MT |
843 | // All partitions do exist, exiting the loop. |
844 | break; | |
845 | } | |
846 | } | |
847 | ||
25fcce25 MT |
848 | if (cmd) |
849 | free(cmd); | |
850 | ||
851 | return r; | |
852 | } | |
853 | ||
42849040 MT |
854 | static int hw_create_btrfs_subvolume(const char* output, const char* subvolume) { |
855 | char command [STRING_SIZE]; | |
856 | int r; | |
857 | ||
858 | // Abort if the command could not be assigned. | |
859 | r = snprintf(command, sizeof(command), "/usr/bin/btrfs subvolume create %s/%s", DESTINATION_MOUNT_PATH, subvolume); | |
860 | if (r < 0) | |
861 | return r; | |
862 | ||
863 | // Create the subvolume | |
864 | r = mysystem(output, command); | |
865 | if (r) | |
866 | return r; | |
867 | ||
868 | return 0; | |
869 | } | |
870 | ||
871 | static int hw_create_btrfs_layout(const char* path, const char* output) { | |
872 | const struct btrfs_subvolumes* subvolume = NULL; | |
873 | char cmd[STRING_SIZE]; | |
874 | char volume[STRING_SIZE]; | |
875 | int r; | |
876 | ||
877 | r = snprintf(cmd, sizeof(cmd), "/usr/bin/mkfs.btrfs -f %s", path); | |
878 | if (r < 0) | |
879 | return r; | |
880 | ||
881 | // Create the main BTRFS file system. | |
882 | r = mysystem(output, cmd); | |
883 | if (r) | |
884 | return r; | |
885 | ||
886 | // We need to mount the FS in order to create any subvolumes. | |
887 | r = hw_mount(path, DESTINATION_MOUNT_PATH, "btrfs", 0); | |
888 | if (r) | |
889 | return r; | |
890 | ||
891 | // Loop through the list of subvolumes to create. | |
892 | for ( subvolume = btrfs_subvolumes; subvolume->name; subvolume++ ) { | |
893 | r = snprintf(volume, sizeof(volume), "%s", subvolume->name); | |
894 | ||
895 | // Abort if snprintf fails. | |
896 | if (r < 0) | |
897 | return r; | |
898 | ||
899 | // Call function to create the subvolume | |
900 | r = hw_create_btrfs_subvolume(output, volume); | |
901 | if (r) | |
902 | return r; | |
903 | } | |
904 | ||
905 | // Umount the main BTRFS after subvolume creation. | |
906 | r = hw_umount(DESTINATION_MOUNT_PATH, 0); | |
907 | if (r) | |
908 | return r; | |
909 | ||
910 | return 0; | |
911 | } | |
912 | ||
46b56e20 | 913 | static int hw_format_filesystem(const char* path, int fs, const char* output) { |
25fcce25 | 914 | char cmd[STRING_SIZE] = "\0"; |
0465449e | 915 | int r; |
25fcce25 MT |
916 | |
917 | // Swap | |
918 | if (fs == HW_FS_SWAP) { | |
919 | snprintf(cmd, sizeof(cmd), "/sbin/mkswap -v1 %s &>/dev/null", path); | |
25fcce25 MT |
920 | |
921 | // EXT4 | |
922 | } else if (fs == HW_FS_EXT4) { | |
5208ceed | 923 | snprintf(cmd, sizeof(cmd), "/sbin/mke2fs -FF -T ext4 %s", path); |
25fcce25 MT |
924 | |
925 | // EXT4 w/o journal | |
926 | } else if (fs == HW_FS_EXT4_WO_JOURNAL) { | |
5208ceed | 927 | snprintf(cmd, sizeof(cmd), "/sbin/mke2fs -FF -T ext4 -O ^has_journal %s", path); |
70a44b52 MT |
928 | |
929 | // XFS | |
930 | } else if (fs == HW_FS_XFS) { | |
931 | snprintf(cmd, sizeof(cmd), "/sbin/mkfs.xfs -f %s", path); | |
92e78233 | 932 | |
130815d3 SS |
933 | // BTRFS |
934 | } else if (fs == HW_FS_BTRFS) { | |
0465449e SS |
935 | r = hw_create_btrfs_layout(path, output); |
936 | ||
937 | return r; | |
130815d3 | 938 | |
92e78233 MT |
939 | // FAT32 |
940 | } else if (fs == HW_FS_FAT32) { | |
941 | snprintf(cmd, sizeof(cmd), "/sbin/mkfs.vfat %s", path); | |
25fcce25 MT |
942 | } |
943 | ||
944 | assert(*cmd); | |
945 | ||
0465449e | 946 | r = mysystem(output, cmd); |
25fcce25 MT |
947 | |
948 | return r; | |
949 | } | |
950 | ||
46b56e20 | 951 | int hw_create_filesystems(struct hw_destination* dest, const char* output) { |
25fcce25 MT |
952 | int r; |
953 | ||
954 | // boot | |
955 | if (*dest->part_boot) { | |
46b56e20 | 956 | r = hw_format_filesystem(dest->part_boot, dest->filesystem, output); |
25fcce25 MT |
957 | if (r) |
958 | return r; | |
959 | } | |
960 | ||
92e78233 MT |
961 | // ESP |
962 | if (*dest->part_boot_efi) { | |
963 | r = hw_format_filesystem(dest->part_boot_efi, HW_FS_FAT32, output); | |
964 | if (r) | |
965 | return r; | |
966 | } | |
967 | ||
25fcce25 MT |
968 | // swap |
969 | if (*dest->part_swap) { | |
46b56e20 | 970 | r = hw_format_filesystem(dest->part_swap, HW_FS_SWAP, output); |
25fcce25 MT |
971 | if (r) |
972 | return r; | |
973 | } | |
974 | ||
975 | // root | |
46b56e20 | 976 | r = hw_format_filesystem(dest->part_root, dest->filesystem, output); |
25fcce25 MT |
977 | if (r) |
978 | return r; | |
979 | ||
25fcce25 MT |
980 | return 0; |
981 | } | |
982 | ||
42849040 | 983 | static int hw_mount_btrfs_subvolumes(const char* source) { |
0465449e | 984 | const struct btrfs_subvolumes* subvolume = NULL; |
42849040 MT |
985 | char path[STRING_SIZE]; |
986 | char options[STRING_SIZE]; | |
0465449e SS |
987 | int r; |
988 | ||
42849040 MT |
989 | // Loop through the list of known subvolumes. |
990 | for (subvolume = btrfs_subvolumes; subvolume->name; subvolume++) { | |
991 | // Assign subvolume path. | |
992 | r = snprintf(path, sizeof(path), "%s%s", DESTINATION_MOUNT_PATH, subvolume->mount_path); | |
993 | if (r < 0) | |
994 | return r; | |
0465449e | 995 | |
42849040 MT |
996 | // Assign subvolume name. |
997 | r = snprintf(options, sizeof(options), "subvol=%s,%s", subvolume->name, BTRFS_MOUNT_OPTIONS); | |
998 | if (r < 0) | |
0465449e | 999 | return r; |
0465449e | 1000 | |
42849040 | 1001 | // Create the directory. |
0e0346cc | 1002 | r = hw_mkdir(path); |
0465449e | 1003 | |
42849040 MT |
1004 | // Abort if the directory could not be created. |
1005 | if(r != 0 && errno != EEXIST) | |
0465449e | 1006 | return r; |
0465449e | 1007 | |
42849040 MT |
1008 | // Print log message |
1009 | fprintf(flog, "Mounting subvolume %s to %s\n", subvolume->name, subvolume->mount_path); | |
0465449e | 1010 | |
42849040 MT |
1011 | // Try to mount the subvolume. |
1012 | r = mount(source, path, "btrfs", NULL, options); | |
1013 | if (r) | |
1014 | return r; | |
0465449e SS |
1015 | } |
1016 | ||
1017 | return 0; | |
1018 | } | |
1019 | ||
25fcce25 MT |
1020 | int hw_mount_filesystems(struct hw_destination* dest, const char* prefix) { |
1021 | char target[STRING_SIZE]; | |
e7740eaf | 1022 | int r; |
25fcce25 MT |
1023 | |
1024 | assert(*prefix == '/'); | |
1025 | ||
1026 | const char* filesystem; | |
1027 | switch (dest->filesystem) { | |
25fcce25 MT |
1028 | case HW_FS_EXT4: |
1029 | case HW_FS_EXT4_WO_JOURNAL: | |
1030 | filesystem = "ext4"; | |
1031 | break; | |
1032 | ||
70a44b52 MT |
1033 | case HW_FS_XFS: |
1034 | filesystem = "xfs"; | |
1035 | break; | |
1036 | ||
130815d3 SS |
1037 | case HW_FS_BTRFS: |
1038 | filesystem = "btrfs"; | |
1039 | break; | |
1040 | ||
92e78233 MT |
1041 | case HW_FS_FAT32: |
1042 | filesystem = "vfat"; | |
1043 | break; | |
1044 | ||
25fcce25 MT |
1045 | default: |
1046 | assert(0); | |
1047 | } | |
1048 | ||
1049 | // root | |
e7740eaf SS |
1050 | if (dest->filesystem == HW_FS_BTRFS) { |
1051 | r = hw_mount_btrfs_subvolumes(dest->part_root); | |
e7740eaf SS |
1052 | if (r) |
1053 | return r; | |
1054 | } else { | |
1055 | r = hw_mount(dest->part_root, prefix, filesystem, 0); | |
e7740eaf SS |
1056 | if (r) |
1057 | return r; | |
1058 | } | |
25fcce25 MT |
1059 | |
1060 | // boot | |
fbeac096 SS |
1061 | snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_BOOT); |
1062 | r = mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO); | |
1063 | ||
1064 | if (r) { | |
1065 | hw_umount_filesystems(dest, prefix); | |
25fcce25 | 1066 | |
fbeac096 SS |
1067 | return r; |
1068 | } | |
1069 | ||
1070 | if (*dest->part_boot) { | |
25fcce25 MT |
1071 | r = hw_mount(dest->part_boot, target, filesystem, 0); |
1072 | if (r) { | |
1073 | hw_umount_filesystems(dest, prefix); | |
1074 | ||
1075 | return r; | |
1076 | } | |
1077 | } | |
1078 | ||
92e78233 MT |
1079 | // ESP |
1080 | if (*dest->part_boot_efi) { | |
1081 | snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_BOOT_EFI); | |
1082 | mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO); | |
1083 | ||
1084 | r = hw_mount(dest->part_boot_efi, target, "vfat", 0); | |
1085 | if (r) { | |
1086 | hw_umount_filesystems(dest, prefix); | |
1087 | ||
1088 | return r; | |
1089 | } | |
1090 | } | |
1091 | ||
25fcce25 MT |
1092 | // swap |
1093 | if (*dest->part_swap) { | |
1094 | r = swapon(dest->part_swap, 0); | |
1095 | if (r) { | |
1096 | hw_umount_filesystems(dest, prefix); | |
1097 | ||
1098 | return r; | |
1099 | } | |
1100 | } | |
1101 | ||
1102 | // bind-mount misc filesystems | |
ced15fdf MT |
1103 | r = hw_bind_mount("/dev", prefix); |
1104 | if (r) | |
1105 | return r; | |
25fcce25 | 1106 | |
ced15fdf MT |
1107 | r = hw_bind_mount("/proc", prefix); |
1108 | if (r) | |
1109 | return r; | |
25fcce25 | 1110 | |
ced15fdf MT |
1111 | r = hw_bind_mount("/sys", prefix); |
1112 | if (r) | |
1113 | return r; | |
25fcce25 | 1114 | |
ced15fdf MT |
1115 | r = hw_bind_mount("/sys/firmware/efi/efivars", prefix); |
1116 | if (r && errno != ENOENT) | |
1117 | return r; | |
25fcce25 MT |
1118 | |
1119 | return 0; | |
1120 | } | |
1121 | ||
42849040 | 1122 | static int hw_umount_btrfs_layout() { |
e7740eaf SS |
1123 | const struct btrfs_subvolumes* subvolume = NULL; |
1124 | char path[STRING_SIZE]; | |
42849040 MT |
1125 | int counter = 0; |
1126 | int retry = 1; | |
e7740eaf SS |
1127 | int r; |
1128 | ||
42849040 MT |
1129 | do { |
1130 | // Reset the retry marker | |
1131 | retry = 0; | |
e7740eaf | 1132 | |
42849040 MT |
1133 | // Loop through the list of subvolumes |
1134 | for (subvolume = btrfs_subvolumes; subvolume->name; subvolume++) { | |
1135 | // Abort if the subvolume path could not be assigned. | |
1136 | r = snprintf(path, sizeof(path), "%s%s", DESTINATION_MOUNT_PATH, subvolume->mount_path); | |
1137 | if (r < 0) | |
1138 | return r; | |
e7740eaf | 1139 | |
42849040 MT |
1140 | // Try to umount the subvolume. |
1141 | r = umount2(path, 0); | |
e7740eaf | 1142 | |
42849040 MT |
1143 | // Handle return codes. |
1144 | if (r) { | |
1145 | switch(errno) { | |
1146 | case EBUSY: | |
1147 | // Set marker to retry the umount. | |
1148 | retry = 1; | |
e7740eaf | 1149 | |
42849040 MT |
1150 | // Ignore if the subvolume could not be unmounted yet, |
1151 | // because it is still used. | |
1152 | continue; | |
e7740eaf | 1153 | |
42849040 MT |
1154 | case EINVAL: |
1155 | // Ignore if the subvolume already has been unmounted | |
1156 | continue; | |
1157 | case ENOENT: | |
1158 | // Ignore if the directory does not longer exist. | |
1159 | continue; | |
1160 | default: | |
1161 | fprintf(flog, "Could not umount %s from %s - Error: %d\n", subvolume->name, path, r); | |
1162 | return r; | |
1163 | } | |
1164 | } | |
e7740eaf | 1165 | |
42849040 MT |
1166 | // Print log message |
1167 | fprintf(flog, "Umounted %s from %s\n", subvolume->name, path); | |
e7740eaf | 1168 | } |
42849040 MT |
1169 | |
1170 | // Abort loop if all mountpoins got umounted | |
1171 | if (retry == 0) | |
1172 | return 0; | |
1173 | ||
1174 | // Abort after five failed umount attempts | |
1175 | if (counter == 5) | |
1176 | return -1; | |
1177 | ||
1178 | // Increment counter. | |
1179 | counter++; | |
1180 | } while (1); | |
e7740eaf SS |
1181 | } |
1182 | ||
25fcce25 | 1183 | int hw_umount_filesystems(struct hw_destination* dest, const char* prefix) { |
ade96ba8 | 1184 | int r; |
ade96ba8 | 1185 | |
ddd32a5c MT |
1186 | // Write all buffers to disk before umounting |
1187 | hw_sync(); | |
1188 | ||
92e78233 MT |
1189 | // ESP |
1190 | if (*dest->part_boot_efi) { | |
ced15fdf | 1191 | r = hw_umount(HW_PATH_BOOT_EFI, prefix); |
92e78233 MT |
1192 | if (r) |
1193 | return -1; | |
1194 | } | |
1195 | ||
25fcce25 MT |
1196 | // boot |
1197 | if (*dest->part_boot) { | |
ced15fdf | 1198 | r = hw_umount(HW_PATH_BOOT, prefix); |
ade96ba8 MT |
1199 | if (r) |
1200 | return -1; | |
25fcce25 MT |
1201 | } |
1202 | ||
25fcce25 MT |
1203 | // swap |
1204 | if (*dest->part_swap) { | |
1205 | swapoff(dest->part_swap); | |
1206 | } | |
1207 | ||
1208 | // misc filesystems | |
ced15fdf MT |
1209 | r = hw_umount("/sys/firmware/efi/efivars", prefix); |
1210 | if (r) | |
1211 | return -1; | |
1212 | ||
1213 | r = hw_umount("/sys", prefix); | |
1214 | if (r) | |
1215 | return -1; | |
1216 | ||
1217 | r = hw_umount("/proc", prefix); | |
1218 | if (r) | |
1219 | return -1; | |
1220 | ||
1221 | r = hw_umount("/dev", prefix); | |
1222 | if (r) | |
1223 | return -1; | |
25fcce25 | 1224 | |
ade96ba8 | 1225 | // root |
2a981396 SS |
1226 | if(dest->filesystem == HW_FS_BTRFS) { |
1227 | r = hw_umount_btrfs_layout(); | |
1228 | } else { | |
1229 | r = hw_umount(prefix, NULL); | |
1230 | } | |
1231 | ||
ade96ba8 MT |
1232 | if (r) |
1233 | return -1; | |
1234 | ||
25fcce25 MT |
1235 | return 0; |
1236 | } | |
4a0d9bef | 1237 | |
d78fffa0 | 1238 | int hw_destroy_raid_superblocks(const struct hw_destination* dest, const char* output) { |
d2fafe03 MT |
1239 | char cmd[STRING_SIZE]; |
1240 | ||
46b56e20 MT |
1241 | hw_stop_all_raid_arrays(output); |
1242 | hw_stop_all_raid_arrays(output); | |
d2fafe03 MT |
1243 | |
1244 | if (dest->disk1) { | |
46b56e20 MT |
1245 | snprintf(cmd, sizeof(cmd), "/sbin/mdadm --zero-superblock %s", dest->disk1->path); |
1246 | mysystem(output, cmd); | |
d2fafe03 MT |
1247 | } |
1248 | ||
1249 | if (dest->disk2) { | |
46b56e20 MT |
1250 | snprintf(cmd, sizeof(cmd), "/sbin/mdadm --zero-superblock %s", dest->disk2->path); |
1251 | mysystem(output, cmd); | |
d2fafe03 MT |
1252 | } |
1253 | ||
1254 | return 0; | |
1255 | } | |
1256 | ||
46b56e20 | 1257 | int hw_setup_raid(struct hw_destination* dest, const char* output) { |
4a0d9bef | 1258 | char* cmd = NULL; |
7b4790d3 | 1259 | int r; |
4a0d9bef MT |
1260 | |
1261 | assert(dest->is_raid); | |
1262 | ||
d2fafe03 MT |
1263 | // Stop all RAID arrays that might be around (again). |
1264 | // It seems that there is some sort of race-condition with udev re-enabling | |
1265 | // the raid arrays and therefore locking the disks. | |
46b56e20 | 1266 | r = hw_destroy_raid_superblocks(dest, output); |
d2fafe03 | 1267 | |
7b4790d3 MT |
1268 | asprintf(&cmd, "echo \"y\" | /sbin/mdadm --create --verbose --metadata=%s --auto=mdp %s", |
1269 | RAID_METADATA, dest->path); | |
4a0d9bef MT |
1270 | |
1271 | switch (dest->raid_level) { | |
1272 | case 1: | |
1273 | asprintf(&cmd, "%s --level=1 --raid-devices=2", cmd); | |
1274 | break; | |
1275 | ||
1276 | default: | |
1277 | assert(0); | |
1278 | } | |
1279 | ||
1280 | if (dest->disk1) { | |
1281 | asprintf(&cmd, "%s %s", cmd, dest->disk1->path); | |
d2f993a7 MT |
1282 | |
1283 | // Clear all data at the beginning | |
1284 | r = hw_zero_out_device(dest->disk1->path, MB2BYTES(10)); | |
1285 | if (r <= 0) | |
1286 | return r; | |
4a0d9bef MT |
1287 | } |
1288 | ||
1289 | if (dest->disk2) { | |
1290 | asprintf(&cmd, "%s %s", cmd, dest->disk2->path); | |
d2f993a7 MT |
1291 | |
1292 | // Clear all data at the beginning | |
1293 | r = hw_zero_out_device(dest->disk2->path, MB2BYTES(10)); | |
1294 | if (r <= 0) | |
1295 | return r; | |
4a0d9bef MT |
1296 | } |
1297 | ||
46b56e20 | 1298 | r = mysystem(output, cmd); |
4a0d9bef MT |
1299 | free(cmd); |
1300 | ||
1301 | // Wait a moment until the device has been properly brought up | |
1302 | if (r == 0) { | |
1303 | unsigned int counter = 10; | |
1304 | while (counter-- > 0) { | |
1305 | sleep(1); | |
1306 | ||
fde37387 MT |
1307 | // If the raid device has not yet been properly brought up, |
1308 | // opening it will fail with the message: Device or resource busy | |
1309 | // Hence we will wait a bit until it becomes usable. | |
0e491487 | 1310 | if (try_open(dest->path) == 0) |
4a0d9bef MT |
1311 | break; |
1312 | } | |
1313 | } | |
1314 | ||
1315 | return r; | |
1316 | } | |
1317 | ||
46b56e20 MT |
1318 | int hw_stop_all_raid_arrays(const char* output) { |
1319 | return mysystem(output, "/sbin/mdadm --stop --scan --verbose"); | |
4a0d9bef | 1320 | } |
f5007e9c | 1321 | |
92e78233 | 1322 | int hw_install_bootloader(struct hw* hw, struct hw_destination* dest, const char* output) { |
f5007e9c | 1323 | char cmd[STRING_SIZE]; |
f5007e9c | 1324 | |
12034118 MT |
1325 | snprintf(cmd, sizeof(cmd), "/usr/bin/install-bootloader %s", dest->path); |
1326 | int r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd); | |
92e78233 MT |
1327 | if (r) |
1328 | return r; | |
1329 | ||
ade96ba8 MT |
1330 | hw_sync(); |
1331 | ||
92e78233 | 1332 | return 0; |
f5007e9c | 1333 | } |
7f69d8a4 MT |
1334 | |
1335 | static char* hw_get_uuid(const char* dev) { | |
1336 | blkid_probe p = blkid_new_probe_from_filename(dev); | |
1337 | const char* buffer = NULL; | |
1338 | char* uuid = NULL; | |
1339 | ||
1340 | if (!p) | |
1341 | return NULL; | |
1342 | ||
1343 | blkid_do_probe(p); | |
1344 | blkid_probe_lookup_value(p, "UUID", &buffer, NULL); | |
1345 | ||
1346 | if (buffer) | |
1347 | uuid = strdup(buffer); | |
1348 | ||
1349 | blkid_free_probe(p); | |
1350 | ||
1351 | return uuid; | |
1352 | } | |
1353 | ||
335c5bd1 MT |
1354 | #define FSTAB_FMT "UUID=%s %-8s %-4s %-10s %d %d\n" |
1355 | ||
7f69d8a4 | 1356 | int hw_write_fstab(struct hw_destination* dest) { |
15be1e1b | 1357 | const struct btrfs_subvolumes* subvolume = NULL; |
7f69d8a4 MT |
1358 | FILE* f = fopen(DESTINATION_MOUNT_PATH "/etc/fstab", "w"); |
1359 | if (!f) | |
1360 | return -1; | |
1361 | ||
7f69d8a4 | 1362 | char* uuid = NULL; |
15be1e1b | 1363 | char mount_options[STRING_SIZE]; |
7f69d8a4 MT |
1364 | |
1365 | // boot | |
1366 | if (*dest->part_boot) { | |
1367 | uuid = hw_get_uuid(dest->part_boot); | |
1368 | ||
1369 | if (uuid) { | |
e404dab5 | 1370 | fprintf(f, FSTAB_FMT, uuid, "/boot", "auto", "defaults,nodev,noexec,nosuid", 1, 2); |
7f69d8a4 MT |
1371 | free(uuid); |
1372 | } | |
1373 | } | |
1374 | ||
92e78233 MT |
1375 | // ESP |
1376 | if (*dest->part_boot_efi) { | |
1377 | uuid = hw_get_uuid(dest->part_boot_efi); | |
1378 | ||
1379 | if (uuid) { | |
1380 | fprintf(f, FSTAB_FMT, uuid, "/boot/efi", "auto", "defaults", 1, 2); | |
1381 | free(uuid); | |
1382 | } | |
1383 | } | |
1384 | ||
1385 | ||
7f69d8a4 MT |
1386 | // swap |
1387 | if (*dest->part_swap) { | |
1388 | uuid = hw_get_uuid(dest->part_swap); | |
1389 | ||
1390 | if (uuid) { | |
335c5bd1 | 1391 | fprintf(f, FSTAB_FMT, uuid, "swap", "swap", "defaults,pri=1", 0, 0); |
7f69d8a4 MT |
1392 | free(uuid); |
1393 | } | |
1394 | } | |
1395 | ||
1396 | // root | |
1397 | uuid = hw_get_uuid(dest->part_root); | |
1398 | if (uuid) { | |
15be1e1b SS |
1399 | if(dest->filesystem == HW_FS_BTRFS) { |
1400 | // Loop through the list of subvolumes | |
1401 | for (subvolume = btrfs_subvolumes; subvolume->name; subvolume++) { | |
1402 | // Abort if the mount options could not be assigned | |
1403 | int r = snprintf(mount_options, sizeof(mount_options), "defaults,%s,subvol=%s", BTRFS_MOUNT_OPTIONS, subvolume->name); | |
1404 | if (r < 0) { | |
1405 | return r; | |
1406 | } | |
1407 | ||
1408 | // Write the entry to the file | |
1409 | fprintf(f, FSTAB_FMT, uuid, subvolume->mount_path, "btrfs", mount_options, 1, 1); | |
1410 | } | |
1411 | } else { | |
1412 | fprintf(f, FSTAB_FMT, uuid, "/", "auto", "defaults", 1, 1); | |
1413 | } | |
1414 | ||
7f69d8a4 MT |
1415 | free(uuid); |
1416 | } | |
1417 | ||
7f69d8a4 MT |
1418 | fclose(f); |
1419 | ||
1420 | return 0; | |
1421 | } | |
282ec35e MT |
1422 | |
1423 | void hw_sync() { | |
1424 | sync(); | |
1425 | sync(); | |
1426 | sync(); | |
1427 | } | |
7d114284 MT |
1428 | |
1429 | int hw_start_networking(const char* output) { | |
1430 | return mysystem(output, "/usr/bin/start-networking.sh"); | |
1431 | } | |
38c6822d MT |
1432 | |
1433 | char* hw_find_backup_file(const char* output, const char* search_path) { | |
1434 | char path[STRING_SIZE]; | |
1435 | ||
1436 | snprintf(path, sizeof(path), "%s/backup.ipf", search_path); | |
1437 | int r = access(path, R_OK); | |
1438 | ||
1439 | if (r == 0) | |
1440 | return strdup(path); | |
1441 | ||
1442 | return NULL; | |
1443 | } | |
1444 | ||
1445 | int hw_restore_backup(const char* output, const char* backup_path, const char* destination) { | |
1446 | char command[STRING_SIZE]; | |
1447 | ||
3f8e70f6 MT |
1448 | snprintf(command, sizeof(command), "/bin/tar xzpf %s -C %s " |
1449 | "--exclude-from=%s/var/ipfire/backup/exclude --exclude-from=%s/var/ipfire/backup/exclude.user", | |
1450 | backup_path, destination, destination, destination); | |
38c6822d MT |
1451 | int rc = mysystem(output, command); |
1452 | ||
1453 | if (rc) | |
1454 | return -1; | |
1455 | ||
1456 | return 0; | |
1457 | } |