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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
e594a3b1 LP |
2 | |
3 | #if HAVE_VALGRIND_MEMCHECK_H | |
4 | #include <valgrind/memcheck.h> | |
5 | #endif | |
6 | ||
7 | #include <fcntl.h> | |
8 | #include <getopt.h> | |
e594a3b1 LP |
9 | #include <linux/fs.h> |
10 | #include <linux/loop.h> | |
11 | #include <sys/file.h> | |
12 | #include <sys/ioctl.h> | |
13 | #include <sys/stat.h> | |
14 | ||
1a037ba2 | 15 | #include "sd-device.h" |
e594a3b1 | 16 | #include "sd-id128.h" |
309a747f | 17 | #include "sd-json.h" |
e594a3b1 LP |
18 | |
19 | #include "alloc-util.h" | |
20 | #include "blkid-util.h" | |
3a37a13a | 21 | #include "blockdev-list.h" |
e594a3b1 LP |
22 | #include "blockdev-util.h" |
23 | #include "btrfs-util.h" | |
d6b4d1c7 | 24 | #include "build.h" |
f461a28d | 25 | #include "chase.h" |
b9c0b6c0 | 26 | #include "chattr-util.h" |
e594a3b1 LP |
27 | #include "conf-files.h" |
28 | #include "conf-parser.h" | |
28db6fbf | 29 | #include "constants.h" |
1e2f3230 | 30 | #include "cryptsetup-util.h" |
ca822829 | 31 | #include "device-util.h" |
7176f06c | 32 | #include "devnum-util.h" |
5c08da58 | 33 | #include "dirent-util.h" |
e594a3b1 LP |
34 | #include "efivars.h" |
35 | #include "errno-util.h" | |
36 | #include "fd-util.h" | |
4dc07c3a | 37 | #include "fdisk-util.h" |
b9df3536 | 38 | #include "fileio.h" |
e594a3b1 LP |
39 | #include "format-table.h" |
40 | #include "format-util.h" | |
41 | #include "fs-util.h" | |
d8e32c47 | 42 | #include "glyph-util.h" |
e594a3b1 | 43 | #include "gpt.h" |
889914ef | 44 | #include "hexdecoct.h" |
ade99252 | 45 | #include "hmac.h" |
e594a3b1 | 46 | #include "id128-util.h" |
baa6a42d | 47 | #include "initrd-util.h" |
b456191d | 48 | #include "io-util.h" |
309a747f | 49 | #include "json-util.h" |
e594a3b1 | 50 | #include "list.h" |
562881c1 | 51 | #include "logarithm.h" |
53171c04 | 52 | #include "loop-util.h" |
e594a3b1 | 53 | #include "main-func.h" |
8a794850 | 54 | #include "mkdir.h" |
53171c04 | 55 | #include "mkfs-util.h" |
8a794850 | 56 | #include "mount-util.h" |
5c08da58 | 57 | #include "mountpoint-util.h" |
c0fad2d9 | 58 | #include "nulstr-util.h" |
b456191d | 59 | #include "openssl-util.h" |
614b022c | 60 | #include "parse-argument.h" |
c3eaba2d | 61 | #include "parse-helpers.h" |
e594a3b1 LP |
62 | #include "pretty-print.h" |
63 | #include "proc-cmdline.h" | |
8a794850 | 64 | #include "process-util.h" |
b9df3536 | 65 | #include "random-util.h" |
170c9823 | 66 | #include "resize-fs.h" |
95bfd3cd | 67 | #include "rm-rf.h" |
e594a3b1 | 68 | #include "sort-util.h" |
e031166e | 69 | #include "specifier.h" |
e594a3b1 | 70 | #include "stdio-util.h" |
889914ef | 71 | #include "string-table.h" |
e594a3b1 LP |
72 | #include "string-util.h" |
73 | #include "strv.h" | |
bf819d3a | 74 | #include "sync-util.h" |
e594a3b1 | 75 | #include "terminal-util.h" |
e0e1f4f7 LP |
76 | #include "tmpfile-util.h" |
77 | #include "tpm2-pcr.h" | |
889914ef | 78 | #include "tpm2-util.h" |
8a794850 | 79 | #include "user-util.h" |
e594a3b1 LP |
80 | #include "utf8.h" |
81 | ||
fb08381c | 82 | /* If not configured otherwise use a minimal partition size of 10M */ |
b262cbe8 | 83 | #define DEFAULT_MIN_SIZE (10ULL*1024ULL*1024ULL) |
fb08381c LP |
84 | |
85 | /* Hard lower limit for new partition sizes */ | |
b262cbe8 | 86 | #define HARD_MIN_SIZE 4096ULL |
fb08381c | 87 | |
b456191d | 88 | /* We know up front we're never going to put more than this in a verity sig partition. */ |
b262cbe8 | 89 | #define VERITY_SIG_SIZE (HARD_MIN_SIZE*4ULL) |
b456191d | 90 | |
69e3234d | 91 | /* libfdisk takes off slightly more than 1M of the disk size when creating a GPT disk label */ |
b262cbe8 | 92 | #define GPT_METADATA_SIZE (1044ULL*1024ULL) |
170c9823 LP |
93 | |
94 | /* LUKS2 takes off 16M of the partition size with its metadata by default */ | |
b262cbe8 | 95 | #define LUKS2_METADATA_SIZE (16ULL*1024ULL*1024ULL) |
170c9823 | 96 | |
48a09a8f DDM |
97 | /* To do LUKS2 offline encryption, we need to keep some extra free space at the end of the partition. */ |
98 | #define LUKS2_METADATA_KEEP_FREE (LUKS2_METADATA_SIZE*2ULL) | |
99 | ||
98e0456e DDM |
100 | /* LUKS2 volume key size. */ |
101 | #define VOLUME_KEY_SIZE (512ULL/8ULL) | |
102 | ||
93f125a6 DDM |
103 | /* Use 4K as the default filesystem sector size because as long as the partitions are aligned to 4K, the |
104 | * filesystems will then also be compatible with sector sizes 512, 1024 and 2048. */ | |
105 | #define DEFAULT_FILESYSTEM_SECTOR_SIZE 4096ULL | |
106 | ||
e57b7020 DDM |
107 | #define APIVFS_TMP_DIRS_NULSTR "proc\0sys\0dev\0tmp\0run\0var/tmp\0" |
108 | ||
e594a3b1 LP |
109 | /* Note: When growing and placing new partitions we always align to 4K sector size. It's how newer hard disks |
110 | * are designed, and if everything is aligned to that performance is best. And for older hard disks with 512B | |
111 | * sector size devices were generally assumed to have an even number of sectors, hence at the worst we'll | |
112 | * waste 3K per partition, which is probably fine. */ | |
113 | ||
634b8471 | 114 | typedef enum EmptyMode { |
243dd1e9 | 115 | EMPTY_UNSET, /* no choice has been made yet */ |
e594a3b1 LP |
116 | EMPTY_REFUSE, /* refuse empty disks, never create a partition table */ |
117 | EMPTY_ALLOW, /* allow empty disks, create partition table if necessary */ | |
118 | EMPTY_REQUIRE, /* require an empty disk, create a partition table */ | |
119 | EMPTY_FORCE, /* make disk empty, erase everything, create a partition table always */ | |
a26f4a49 | 120 | EMPTY_CREATE, /* create disk as loopback file, create a partition table always */ |
634b8471 LP |
121 | _EMPTY_MODE_MAX, |
122 | _EMPTY_MODE_INVALID = -EINVAL, | |
123 | } EmptyMode; | |
e594a3b1 | 124 | |
53538e33 | 125 | typedef enum FilterPartitionType { |
81d1098b DDM |
126 | FILTER_PARTITIONS_NONE, |
127 | FILTER_PARTITIONS_EXCLUDE, | |
128 | FILTER_PARTITIONS_INCLUDE, | |
129 | _FILTER_PARTITIONS_MAX, | |
130 | _FILTER_PARTITIONS_INVALID = -EINVAL, | |
131 | } FilterPartitionsType; | |
132 | ||
634b8471 | 133 | static EmptyMode arg_empty = EMPTY_UNSET; |
e594a3b1 | 134 | static bool arg_dry_run = true; |
ecb4c5a6 | 135 | static char *arg_node = NULL; |
e594a3b1 | 136 | static char *arg_root = NULL; |
252d6267 | 137 | static char *arg_image = NULL; |
224c853f | 138 | static char **arg_definitions = NULL; |
e594a3b1 LP |
139 | static bool arg_discard = true; |
140 | static bool arg_can_factory_reset = false; | |
141 | static int arg_factory_reset = -1; | |
142 | static sd_id128_t arg_seed = SD_ID128_NULL; | |
143 | static bool arg_randomize = false; | |
144 | static int arg_pretty = -1; | |
a26f4a49 | 145 | static uint64_t arg_size = UINT64_MAX; |
170c9823 | 146 | static bool arg_size_auto = false; |
309a747f | 147 | static sd_json_format_flags_t arg_json_format_flags = SD_JSON_FORMAT_OFF; |
896e678b LP |
148 | static PagerFlags arg_pager_flags = 0; |
149 | static bool arg_legend = true; | |
b9df3536 LP |
150 | static void *arg_key = NULL; |
151 | static size_t arg_key_size = 0; | |
b456191d | 152 | static EVP_PKEY *arg_private_key = NULL; |
a73144bb LB |
153 | static KeySourceType arg_private_key_source_type = OPENSSL_KEY_SOURCE_FILE; |
154 | static char *arg_private_key_source = NULL; | |
b456191d | 155 | static X509 *arg_certificate = NULL; |
889914ef | 156 | static char *arg_tpm2_device = NULL; |
78fdf0f6 LP |
157 | static uint32_t arg_tpm2_seal_key_handle = 0; |
158 | static char *arg_tpm2_device_key = NULL; | |
9e437994 DS |
159 | static Tpm2PCRValue *arg_tpm2_hash_pcr_values = NULL; |
160 | static size_t arg_tpm2_n_hash_pcr_values = 0; | |
02ef97cd | 161 | static char *arg_tpm2_public_key = NULL; |
9e437994 | 162 | static uint32_t arg_tpm2_public_key_pcr_mask = 0; |
404aea78 | 163 | static char *arg_tpm2_pcrlock = NULL; |
4cee8333 | 164 | static bool arg_split = false; |
9786dfe6 | 165 | static GptPartitionType *arg_filter_partitions = NULL; |
d989dd76 | 166 | static size_t arg_n_filter_partitions = 0; |
81d1098b | 167 | static FilterPartitionsType arg_filter_partitions_type = FILTER_PARTITIONS_NONE; |
9786dfe6 | 168 | static GptPartitionType *arg_defer_partitions = NULL; |
8275334b | 169 | static size_t arg_n_defer_partitions = 0; |
e1878ef7 | 170 | static uint64_t arg_sector_size = 0; |
84be0c71 | 171 | static ImagePolicy *arg_image_policy = NULL; |
9786dfe6 | 172 | static Architecture arg_architecture = _ARCHITECTURE_INVALID; |
fc10b158 | 173 | static int arg_offline = -1; |
e1536d1f | 174 | static char **arg_copy_from = NULL; |
607343a1 | 175 | static char *arg_copy_source = NULL; |
a121b331 | 176 | static char *arg_make_ddi = NULL; |
1a0541d4 DDM |
177 | static char *arg_generate_fstab = NULL; |
178 | static char *arg_generate_crypttab = NULL; | |
e594a3b1 | 179 | |
ecb4c5a6 | 180 | STATIC_DESTRUCTOR_REGISTER(arg_node, freep); |
e594a3b1 | 181 | STATIC_DESTRUCTOR_REGISTER(arg_root, freep); |
252d6267 | 182 | STATIC_DESTRUCTOR_REGISTER(arg_image, freep); |
224c853f | 183 | STATIC_DESTRUCTOR_REGISTER(arg_definitions, strv_freep); |
b9df3536 | 184 | STATIC_DESTRUCTOR_REGISTER(arg_key, erase_and_freep); |
b456191d | 185 | STATIC_DESTRUCTOR_REGISTER(arg_private_key, EVP_PKEY_freep); |
a73144bb | 186 | STATIC_DESTRUCTOR_REGISTER(arg_private_key_source, freep); |
b456191d | 187 | STATIC_DESTRUCTOR_REGISTER(arg_certificate, X509_freep); |
889914ef | 188 | STATIC_DESTRUCTOR_REGISTER(arg_tpm2_device, freep); |
78fdf0f6 | 189 | STATIC_DESTRUCTOR_REGISTER(arg_tpm2_device_key, freep); |
9e437994 | 190 | STATIC_DESTRUCTOR_REGISTER(arg_tpm2_hash_pcr_values, freep); |
02ef97cd | 191 | STATIC_DESTRUCTOR_REGISTER(arg_tpm2_public_key, freep); |
404aea78 | 192 | STATIC_DESTRUCTOR_REGISTER(arg_tpm2_pcrlock, freep); |
81d1098b | 193 | STATIC_DESTRUCTOR_REGISTER(arg_filter_partitions, freep); |
a81f5ffd | 194 | STATIC_DESTRUCTOR_REGISTER(arg_defer_partitions, freep); |
84be0c71 | 195 | STATIC_DESTRUCTOR_REGISTER(arg_image_policy, image_policy_freep); |
e1536d1f | 196 | STATIC_DESTRUCTOR_REGISTER(arg_copy_from, strv_freep); |
607343a1 | 197 | STATIC_DESTRUCTOR_REGISTER(arg_copy_source, freep); |
a121b331 | 198 | STATIC_DESTRUCTOR_REGISTER(arg_make_ddi, freep); |
1a0541d4 DDM |
199 | STATIC_DESTRUCTOR_REGISTER(arg_generate_fstab, freep); |
200 | STATIC_DESTRUCTOR_REGISTER(arg_generate_crypttab, freep); | |
e594a3b1 | 201 | |
e594a3b1 | 202 | typedef struct FreeArea FreeArea; |
e594a3b1 | 203 | |
889914ef LP |
204 | typedef enum EncryptMode { |
205 | ENCRYPT_OFF, | |
206 | ENCRYPT_KEY_FILE, | |
207 | ENCRYPT_TPM2, | |
208 | ENCRYPT_KEY_FILE_TPM2, | |
209 | _ENCRYPT_MODE_MAX, | |
2d93c20e | 210 | _ENCRYPT_MODE_INVALID = -EINVAL, |
889914ef LP |
211 | } EncryptMode; |
212 | ||
b5b7879a DDM |
213 | typedef enum VerityMode { |
214 | VERITY_OFF, | |
215 | VERITY_DATA, | |
216 | VERITY_HASH, | |
b456191d | 217 | VERITY_SIG, |
b5b7879a DDM |
218 | _VERITY_MODE_MAX, |
219 | _VERITY_MODE_INVALID = -EINVAL, | |
220 | } VerityMode; | |
221 | ||
5c33b686 DDM |
222 | typedef enum MinimizeMode { |
223 | MINIMIZE_OFF, | |
224 | MINIMIZE_BEST, | |
225 | MINIMIZE_GUESS, | |
226 | _MINIMIZE_MODE_MAX, | |
227 | _MINIMIZE_MODE_INVALID = -EINVAL, | |
228 | } MinimizeMode; | |
229 | ||
1a0541d4 DDM |
230 | typedef struct PartitionMountPoint { |
231 | char *where; | |
232 | char *options; | |
233 | } PartitionMountPoint; | |
234 | ||
235 | static void partition_mountpoint_free_many(PartitionMountPoint *f, size_t n) { | |
236 | assert(f || n == 0); | |
237 | ||
238 | FOREACH_ARRAY(i, f, n) { | |
239 | free(i->where); | |
240 | free(i->options); | |
241 | } | |
242 | ||
243 | free(f); | |
244 | } | |
245 | ||
246 | typedef struct PartitionEncryptedVolume { | |
247 | char *name; | |
248 | char *keyfile; | |
249 | char *options; | |
250 | } PartitionEncryptedVolume; | |
251 | ||
252 | static PartitionEncryptedVolume* partition_encrypted_volume_free(PartitionEncryptedVolume *c) { | |
253 | if (!c) | |
254 | return NULL; | |
255 | ||
256 | free(c->name); | |
257 | free(c->keyfile); | |
258 | free(c->options); | |
259 | ||
260 | return mfree(c); | |
261 | } | |
262 | ||
562881c1 DDM |
263 | typedef enum SubvolumeFlags { |
264 | SUBVOLUME_RO = 1 << 0, | |
265 | _SUBVOLUME_FLAGS_MASK = SUBVOLUME_RO, | |
266 | _SUBVOLUME_FLAGS_INVALID = -EINVAL, | |
267 | _SUBVOLUME_FLAGS_ERRNO_MAX = -ERRNO_MAX, /* Ensure the whole errno range fits into this enum */ | |
268 | } SubvolumeFlags; | |
269 | ||
270 | static SubvolumeFlags subvolume_flags_from_string_one(const char *s) { | |
271 | /* This is a bitmask (i.e. not dense), hence we don't use the "string-table.h" stuff here. */ | |
272 | ||
273 | assert(s); | |
274 | ||
275 | if (streq(s, "ro")) | |
276 | return SUBVOLUME_RO; | |
277 | ||
278 | return _SUBVOLUME_FLAGS_INVALID; | |
279 | } | |
280 | ||
281 | static SubvolumeFlags subvolume_flags_from_string(const char *s) { | |
282 | SubvolumeFlags flags = 0; | |
283 | int r; | |
284 | ||
285 | assert(s); | |
286 | ||
287 | for (;;) { | |
288 | _cleanup_free_ char *f = NULL; | |
289 | SubvolumeFlags ff; | |
290 | ||
291 | r = extract_first_word(&s, &f, ",", EXTRACT_DONT_COALESCE_SEPARATORS); | |
292 | if (r < 0) | |
293 | return r; | |
294 | if (r == 0) | |
295 | break; | |
296 | ||
297 | ff = subvolume_flags_from_string_one(f); | |
298 | if (ff < 0) | |
299 | return -EBADRQC; /* recognizable error */ | |
300 | ||
301 | flags |= ff; | |
302 | } | |
303 | ||
304 | return flags; | |
305 | } | |
306 | ||
562881c1 DDM |
307 | typedef struct Subvolume { |
308 | char *path; | |
309 | SubvolumeFlags flags; | |
310 | } Subvolume; | |
311 | ||
312 | static Subvolume* subvolume_free(Subvolume *s) { | |
313 | if (!s) | |
314 | return NULL; | |
315 | ||
316 | free(s->path); | |
317 | return mfree(s); | |
318 | } | |
319 | ||
320 | DEFINE_PRIVATE_HASH_OPS_WITH_VALUE_DESTRUCTOR(subvolume_hash_ops, char, path_hash_func, path_compare, Subvolume, subvolume_free); | |
321 | ||
448cfb7f | 322 | typedef struct Partition { |
e594a3b1 | 323 | char *definition_path; |
39fc0174 | 324 | char **drop_in_files; |
e594a3b1 | 325 | |
22e932f4 | 326 | GptPartitionType type; |
e594a3b1 | 327 | sd_id128_t current_uuid, new_uuid; |
11749b61 | 328 | bool new_uuid_is_set; |
e594a3b1 | 329 | char *current_label, *new_label; |
81e04781 VH |
330 | sd_id128_t fs_uuid, luks_uuid, verity_uuid; |
331 | uint8_t verity_salt[SHA256_DIGEST_SIZE]; | |
e594a3b1 LP |
332 | |
333 | bool dropped; | |
334 | bool factory_reset; | |
335 | int32_t priority; | |
336 | ||
337 | uint32_t weight, padding_weight; | |
338 | ||
339 | uint64_t current_size, new_size; | |
340 | uint64_t size_min, size_max; | |
341 | ||
342 | uint64_t current_padding, new_padding; | |
343 | uint64_t padding_min, padding_max; | |
344 | ||
345 | uint64_t partno; | |
346 | uint64_t offset; | |
347 | ||
348 | struct fdisk_partition *current_partition; | |
349 | struct fdisk_partition *new_partition; | |
350 | FreeArea *padding_area; | |
351 | FreeArea *allocated_to_area; | |
352 | ||
757bc2e4 | 353 | char *copy_blocks_path; |
7d07030e | 354 | bool copy_blocks_path_is_our_file; |
5c08da58 | 355 | bool copy_blocks_auto; |
585c5c75 | 356 | const char *copy_blocks_root; |
757bc2e4 | 357 | int copy_blocks_fd; |
1e46985a | 358 | uint64_t copy_blocks_offset; |
757bc2e4 | 359 | uint64_t copy_blocks_size; |
add090ea | 360 | uint64_t copy_blocks_done; |
757bc2e4 | 361 | |
53171c04 | 362 | char *format; |
8a794850 | 363 | char **copy_files; |
600bf76c DDM |
364 | char **exclude_files_source; |
365 | char **exclude_files_target; | |
d83d8048 | 366 | char **make_directories; |
c64ddefd | 367 | char **make_symlinks; |
562881c1 | 368 | OrderedHashmap *subvolumes; |
3799fa80 | 369 | char *default_subvolume; |
889914ef | 370 | EncryptMode encrypt; |
b5b7879a DDM |
371 | VerityMode verity; |
372 | char *verity_match_key; | |
5c33b686 | 373 | MinimizeMode minimize; |
c380047b MC |
374 | uint64_t verity_data_block_size; |
375 | uint64_t verity_hash_block_size; | |
27cacec9 DDM |
376 | char *compression; |
377 | char *compression_level; | |
53171c04 | 378 | |
e73309c5 | 379 | uint64_t gpt_flags; |
ff0771bf | 380 | int no_auto; |
e73309c5 | 381 | int read_only; |
1c41c1dc | 382 | int growfs; |
e73309c5 | 383 | |
6b4b40f4 | 384 | struct iovec roothash; |
b5b7879a | 385 | |
4cee8333 | 386 | char *split_name_format; |
62108348 | 387 | char *split_path; |
4cee8333 | 388 | |
1a0541d4 DDM |
389 | PartitionMountPoint *mountpoints; |
390 | size_t n_mountpoints; | |
391 | ||
392 | PartitionEncryptedVolume *encrypted_volume; | |
393 | ||
2cb9c68c AV |
394 | char *supplement_for_name; |
395 | struct Partition *supplement_for, *supplement_target_for; | |
396 | struct Partition *suppressing; | |
397 | ||
448cfb7f | 398 | struct Partition *siblings[_VERITY_MODE_MAX]; |
b5b7879a | 399 | |
448cfb7f DDM |
400 | LIST_FIELDS(struct Partition, partitions); |
401 | } Partition; | |
e594a3b1 LP |
402 | |
403 | #define PARTITION_IS_FOREIGN(p) (!(p)->definition_path) | |
404 | #define PARTITION_EXISTS(p) (!!(p)->current_partition) | |
2cb9c68c | 405 | #define PARTITION_SUPPRESSED(p) ((p)->supplement_for && (p)->supplement_for->suppressing == (p)) |
e594a3b1 LP |
406 | |
407 | struct FreeArea { | |
408 | Partition *after; | |
409 | uint64_t size; | |
410 | uint64_t allocated; | |
411 | }; | |
412 | ||
448cfb7f | 413 | typedef struct Context { |
e594a3b1 LP |
414 | LIST_HEAD(Partition, partitions); |
415 | size_t n_partitions; | |
416 | ||
417 | FreeArea **free_areas; | |
319a4f4b | 418 | size_t n_free_areas; |
e594a3b1 LP |
419 | |
420 | uint64_t start, end, total; | |
421 | ||
422 | struct fdisk_context *fdisk_context; | |
93f125a6 | 423 | uint64_t sector_size, grain_size, fs_sector_size; |
e594a3b1 LP |
424 | |
425 | sd_id128_t seed; | |
cc751c75 DDM |
426 | |
427 | char *node; | |
db1d4e6b | 428 | bool node_is_our_file; |
cc751c75 DDM |
429 | int backing_fd; |
430 | ||
431 | bool from_scratch; | |
448cfb7f | 432 | } Context; |
e594a3b1 | 433 | |
634b8471 LP |
434 | static const char *empty_mode_table[_EMPTY_MODE_MAX] = { |
435 | [EMPTY_UNSET] = "unset", | |
436 | [EMPTY_REFUSE] = "refuse", | |
437 | [EMPTY_ALLOW] = "allow", | |
438 | [EMPTY_REQUIRE] = "require", | |
439 | [EMPTY_FORCE] = "force", | |
440 | [EMPTY_CREATE] = "create", | |
441 | }; | |
442 | ||
889914ef LP |
443 | static const char *encrypt_mode_table[_ENCRYPT_MODE_MAX] = { |
444 | [ENCRYPT_OFF] = "off", | |
445 | [ENCRYPT_KEY_FILE] = "key-file", | |
446 | [ENCRYPT_TPM2] = "tpm2", | |
447 | [ENCRYPT_KEY_FILE_TPM2] = "key-file+tpm2", | |
448 | }; | |
449 | ||
b5b7879a DDM |
450 | static const char *verity_mode_table[_VERITY_MODE_MAX] = { |
451 | [VERITY_OFF] = "off", | |
452 | [VERITY_DATA] = "data", | |
453 | [VERITY_HASH] = "hash", | |
b456191d | 454 | [VERITY_SIG] = "signature", |
b5b7879a DDM |
455 | }; |
456 | ||
5c33b686 DDM |
457 | static const char *minimize_mode_table[_MINIMIZE_MODE_MAX] = { |
458 | [MINIMIZE_OFF] = "off", | |
459 | [MINIMIZE_BEST] = "best", | |
460 | [MINIMIZE_GUESS] = "guess", | |
461 | }; | |
462 | ||
634b8471 | 463 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP(empty_mode, EmptyMode); |
2709d029 | 464 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING_WITH_BOOLEAN(encrypt_mode, EncryptMode, ENCRYPT_KEY_FILE); |
86bebe38 | 465 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP(verity_mode, VerityMode); |
5c33b686 | 466 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING_WITH_BOOLEAN(minimize_mode, MinimizeMode, MINIMIZE_BEST); |
889914ef | 467 | |
e594a3b1 LP |
468 | static uint64_t round_down_size(uint64_t v, uint64_t p) { |
469 | return (v / p) * p; | |
470 | } | |
471 | ||
472 | static uint64_t round_up_size(uint64_t v, uint64_t p) { | |
473 | ||
474 | v = DIV_ROUND_UP(v, p); | |
475 | ||
476 | if (v > UINT64_MAX / p) | |
477 | return UINT64_MAX; /* overflow */ | |
478 | ||
479 | return v * p; | |
480 | } | |
481 | ||
482 | static Partition *partition_new(void) { | |
483 | Partition *p; | |
484 | ||
485 | p = new(Partition, 1); | |
486 | if (!p) | |
487 | return NULL; | |
488 | ||
489 | *p = (Partition) { | |
490 | .weight = 1000, | |
491 | .padding_weight = 0, | |
492 | .current_size = UINT64_MAX, | |
493 | .new_size = UINT64_MAX, | |
494 | .size_min = UINT64_MAX, | |
495 | .size_max = UINT64_MAX, | |
496 | .current_padding = UINT64_MAX, | |
497 | .new_padding = UINT64_MAX, | |
498 | .padding_min = UINT64_MAX, | |
499 | .padding_max = UINT64_MAX, | |
500 | .partno = UINT64_MAX, | |
501 | .offset = UINT64_MAX, | |
254d1313 | 502 | .copy_blocks_fd = -EBADF, |
1e46985a | 503 | .copy_blocks_offset = UINT64_MAX, |
757bc2e4 | 504 | .copy_blocks_size = UINT64_MAX, |
ff0771bf | 505 | .no_auto = -1, |
e73309c5 | 506 | .read_only = -1, |
1c41c1dc | 507 | .growfs = -1, |
c380047b MC |
508 | .verity_data_block_size = UINT64_MAX, |
509 | .verity_hash_block_size = UINT64_MAX, | |
e594a3b1 LP |
510 | }; |
511 | ||
512 | return p; | |
513 | } | |
514 | ||
2cb9c68c AV |
515 | static void partition_unlink_supplement(Partition *p) { |
516 | assert(p); | |
517 | ||
518 | assert(!p->supplement_for || !p->supplement_target_for); /* Can't be both */ | |
519 | ||
520 | if (p->supplement_target_for) { | |
521 | assert(p->supplement_target_for->supplement_for == p); | |
522 | ||
523 | p->supplement_target_for->supplement_for = NULL; | |
524 | } | |
525 | ||
526 | if (p->supplement_for) { | |
527 | assert(p->supplement_for->supplement_target_for == p); | |
528 | assert(!p->supplement_for->suppressing || p->supplement_for->suppressing == p); | |
529 | ||
530 | p->supplement_for->supplement_target_for = p->supplement_for->suppressing = NULL; | |
531 | } | |
532 | ||
533 | p->supplement_for_name = mfree(p->supplement_for_name); | |
534 | p->supplement_target_for = p->supplement_for = p->suppressing = NULL; | |
535 | } | |
536 | ||
e594a3b1 LP |
537 | static Partition* partition_free(Partition *p) { |
538 | if (!p) | |
539 | return NULL; | |
540 | ||
541 | free(p->current_label); | |
542 | free(p->new_label); | |
543 | free(p->definition_path); | |
39fc0174 | 544 | strv_free(p->drop_in_files); |
e594a3b1 LP |
545 | |
546 | if (p->current_partition) | |
547 | fdisk_unref_partition(p->current_partition); | |
548 | if (p->new_partition) | |
549 | fdisk_unref_partition(p->new_partition); | |
550 | ||
7d07030e DDM |
551 | if (p->copy_blocks_path_is_our_file) |
552 | unlink_and_free(p->copy_blocks_path); | |
553 | else | |
554 | free(p->copy_blocks_path); | |
757bc2e4 LP |
555 | safe_close(p->copy_blocks_fd); |
556 | ||
53171c04 | 557 | free(p->format); |
8a794850 | 558 | strv_free(p->copy_files); |
600bf76c DDM |
559 | strv_free(p->exclude_files_source); |
560 | strv_free(p->exclude_files_target); | |
d83d8048 | 561 | strv_free(p->make_directories); |
c64ddefd | 562 | strv_free(p->make_symlinks); |
562881c1 | 563 | ordered_hashmap_free(p->subvolumes); |
9f482c5a | 564 | free(p->default_subvolume); |
b5b7879a | 565 | free(p->verity_match_key); |
27cacec9 DDM |
566 | free(p->compression); |
567 | free(p->compression_level); | |
b5b7879a | 568 | |
6b4b40f4 | 569 | iovec_done(&p->roothash); |
53171c04 | 570 | |
4cee8333 | 571 | free(p->split_name_format); |
a2d7c42e | 572 | unlink_and_free(p->split_path); |
4cee8333 | 573 | |
1a0541d4 DDM |
574 | partition_mountpoint_free_many(p->mountpoints, p->n_mountpoints); |
575 | p->mountpoints = NULL; | |
576 | p->n_mountpoints = 0; | |
577 | ||
578 | partition_encrypted_volume_free(p->encrypted_volume); | |
579 | ||
2cb9c68c AV |
580 | partition_unlink_supplement(p); |
581 | ||
e594a3b1 LP |
582 | return mfree(p); |
583 | } | |
584 | ||
9ccceb9d YW |
585 | static void partition_foreignize(Partition *p) { |
586 | assert(p); | |
587 | assert(PARTITION_EXISTS(p)); | |
588 | ||
589 | /* Reset several parameters set through definition file to make the partition foreign. */ | |
590 | ||
9ccceb9d YW |
591 | p->definition_path = mfree(p->definition_path); |
592 | p->drop_in_files = strv_free(p->drop_in_files); | |
593 | ||
594 | p->copy_blocks_path = mfree(p->copy_blocks_path); | |
595 | p->copy_blocks_fd = safe_close(p->copy_blocks_fd); | |
585c5c75 | 596 | p->copy_blocks_root = NULL; |
9ccceb9d YW |
597 | |
598 | p->format = mfree(p->format); | |
599 | p->copy_files = strv_free(p->copy_files); | |
600bf76c DDM |
600 | p->exclude_files_source = strv_free(p->exclude_files_source); |
601 | p->exclude_files_target = strv_free(p->exclude_files_target); | |
9ccceb9d | 602 | p->make_directories = strv_free(p->make_directories); |
c64ddefd | 603 | p->make_symlinks = strv_free(p->make_symlinks); |
562881c1 | 604 | p->subvolumes = ordered_hashmap_free(p->subvolumes); |
9f482c5a | 605 | p->default_subvolume = mfree(p->default_subvolume); |
9ccceb9d | 606 | p->verity_match_key = mfree(p->verity_match_key); |
27cacec9 DDM |
607 | p->compression = mfree(p->compression); |
608 | p->compression_level = mfree(p->compression_level); | |
9ccceb9d | 609 | |
9ccceb9d YW |
610 | p->priority = 0; |
611 | p->weight = 1000; | |
612 | p->padding_weight = 0; | |
613 | p->size_min = UINT64_MAX; | |
614 | p->size_max = UINT64_MAX; | |
615 | p->padding_min = UINT64_MAX; | |
616 | p->padding_max = UINT64_MAX; | |
617 | p->no_auto = -1; | |
618 | p->read_only = -1; | |
619 | p->growfs = -1; | |
620 | p->verity = VERITY_OFF; | |
1a0541d4 DDM |
621 | |
622 | partition_mountpoint_free_many(p->mountpoints, p->n_mountpoints); | |
623 | p->mountpoints = NULL; | |
624 | p->n_mountpoints = 0; | |
625 | ||
626 | p->encrypted_volume = partition_encrypted_volume_free(p->encrypted_volume); | |
2cb9c68c AV |
627 | |
628 | partition_unlink_supplement(p); | |
9ccceb9d YW |
629 | } |
630 | ||
c74d50ff | 631 | static bool partition_type_exclude(const GptPartitionType *type) { |
81d1098b DDM |
632 | if (arg_filter_partitions_type == FILTER_PARTITIONS_NONE) |
633 | return false; | |
634 | ||
d989dd76 | 635 | for (size_t i = 0; i < arg_n_filter_partitions; i++) |
c74d50ff | 636 | if (sd_id128_equal(type->uuid, arg_filter_partitions[i].uuid)) |
81d1098b DDM |
637 | return arg_filter_partitions_type == FILTER_PARTITIONS_EXCLUDE; |
638 | ||
639 | return arg_filter_partitions_type == FILTER_PARTITIONS_INCLUDE; | |
640 | } | |
641 | ||
c74d50ff | 642 | static bool partition_type_defer(const GptPartitionType *type) { |
8275334b | 643 | for (size_t i = 0; i < arg_n_defer_partitions; i++) |
c74d50ff | 644 | if (sd_id128_equal(type->uuid, arg_defer_partitions[i].uuid)) |
7d505753 DDM |
645 | return true; |
646 | ||
647 | return false; | |
648 | } | |
649 | ||
e594a3b1 LP |
650 | static Partition* partition_unlink_and_free(Context *context, Partition *p) { |
651 | if (!p) | |
652 | return NULL; | |
653 | ||
654 | LIST_REMOVE(partitions, context->partitions, p); | |
655 | ||
656 | assert(context->n_partitions > 0); | |
657 | context->n_partitions--; | |
658 | ||
659 | return partition_free(p); | |
660 | } | |
661 | ||
662 | DEFINE_TRIVIAL_CLEANUP_FUNC(Partition*, partition_free); | |
663 | ||
52031044 | 664 | static Context* context_new(sd_id128_t seed) { |
e594a3b1 LP |
665 | Context *context; |
666 | ||
667 | context = new(Context, 1); | |
668 | if (!context) | |
669 | return NULL; | |
670 | ||
671 | *context = (Context) { | |
672 | .start = UINT64_MAX, | |
673 | .end = UINT64_MAX, | |
674 | .total = UINT64_MAX, | |
675 | .seed = seed, | |
676 | }; | |
677 | ||
678 | return context; | |
679 | } | |
680 | ||
681 | static void context_free_free_areas(Context *context) { | |
682 | assert(context); | |
683 | ||
684 | for (size_t i = 0; i < context->n_free_areas; i++) | |
685 | free(context->free_areas[i]); | |
686 | ||
687 | context->free_areas = mfree(context->free_areas); | |
688 | context->n_free_areas = 0; | |
e594a3b1 LP |
689 | } |
690 | ||
52031044 | 691 | static Context* context_free(Context *context) { |
e594a3b1 LP |
692 | if (!context) |
693 | return NULL; | |
694 | ||
695 | while (context->partitions) | |
696 | partition_unlink_and_free(context, context->partitions); | |
697 | assert(context->n_partitions == 0); | |
698 | ||
699 | context_free_free_areas(context); | |
700 | ||
701 | if (context->fdisk_context) | |
702 | fdisk_unref_context(context->fdisk_context); | |
703 | ||
cc751c75 | 704 | safe_close(context->backing_fd); |
db1d4e6b DDM |
705 | if (context->node_is_our_file) |
706 | unlink_and_free(context->node); | |
707 | else | |
708 | free(context->node); | |
cc751c75 | 709 | |
e594a3b1 LP |
710 | return mfree(context); |
711 | } | |
712 | ||
713 | DEFINE_TRIVIAL_CLEANUP_FUNC(Context*, context_free); | |
714 | ||
715 | static int context_add_free_area( | |
716 | Context *context, | |
717 | uint64_t size, | |
718 | Partition *after) { | |
719 | ||
720 | FreeArea *a; | |
721 | ||
722 | assert(context); | |
723 | assert(!after || !after->padding_area); | |
724 | ||
319a4f4b | 725 | if (!GREEDY_REALLOC(context->free_areas, context->n_free_areas + 1)) |
e594a3b1 LP |
726 | return -ENOMEM; |
727 | ||
728 | a = new(FreeArea, 1); | |
729 | if (!a) | |
730 | return -ENOMEM; | |
731 | ||
732 | *a = (FreeArea) { | |
733 | .size = size, | |
734 | .after = after, | |
735 | }; | |
736 | ||
737 | context->free_areas[context->n_free_areas++] = a; | |
738 | ||
739 | if (after) | |
740 | after->padding_area = a; | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
9ccceb9d YW |
745 | static void partition_drop_or_foreignize(Partition *p) { |
746 | if (!p || p->dropped || PARTITION_IS_FOREIGN(p)) | |
747 | return; | |
748 | ||
749 | if (PARTITION_EXISTS(p)) { | |
750 | log_info("Can't grow existing partition %s of priority %" PRIi32 ", ignoring.", | |
751 | strna(p->current_label ?: p->new_label), p->priority); | |
752 | ||
753 | /* Handle the partition as foreign. Do not set dropped flag. */ | |
754 | partition_foreignize(p); | |
755 | } else { | |
756 | log_info("Can't fit partition %s of priority %" PRIi32 ", dropping.", | |
757 | p->definition_path, p->priority); | |
758 | ||
759 | p->dropped = true; | |
760 | p->allocated_to_area = NULL; | |
2cb9c68c AV |
761 | |
762 | /* If a supplement partition is dropped, we don't want to merge in its settings. */ | |
763 | if (PARTITION_SUPPRESSED(p)) | |
764 | p->supplement_for->suppressing = NULL; | |
9ccceb9d YW |
765 | } |
766 | } | |
767 | ||
768 | static bool context_drop_or_foreignize_one_priority(Context *context) { | |
e594a3b1 | 769 | int32_t priority = 0; |
e594a3b1 LP |
770 | |
771 | LIST_FOREACH(partitions, p, context->partitions) { | |
772 | if (p->dropped) | |
773 | continue; | |
e594a3b1 | 774 | |
9ccceb9d | 775 | priority = MAX(priority, p->priority); |
e594a3b1 LP |
776 | } |
777 | ||
778 | /* Refuse to drop partitions with 0 or negative priorities or partitions of priorities that have at | |
779 | * least one existing priority */ | |
9ccceb9d | 780 | if (priority <= 0) |
e594a3b1 LP |
781 | return false; |
782 | ||
783 | LIST_FOREACH(partitions, p, context->partitions) { | |
784 | if (p->priority < priority) | |
785 | continue; | |
786 | ||
9ccceb9d | 787 | partition_drop_or_foreignize(p); |
b5b7879a DDM |
788 | |
789 | /* We ensure that all verity sibling partitions have the same priority, so it's safe | |
790 | * to drop all siblings here as well. */ | |
791 | ||
9ccceb9d YW |
792 | for (VerityMode mode = VERITY_OFF + 1; mode < _VERITY_MODE_MAX; mode++) |
793 | partition_drop_or_foreignize(p->siblings[mode]); | |
e594a3b1 LP |
794 | } |
795 | ||
796 | return true; | |
797 | } | |
798 | ||
a80701e6 | 799 | static uint64_t partition_min_size(const Context *context, const Partition *p) { |
2cb9c68c | 800 | uint64_t sz, override_min; |
e594a3b1 | 801 | |
994b3031 LP |
802 | assert(context); |
803 | assert(p); | |
804 | ||
e594a3b1 LP |
805 | /* Calculate the disk space we really need at minimum for this partition. If the partition already |
806 | * exists the current size is what we really need. If it doesn't exist yet refuse to allocate less | |
fb08381c LP |
807 | * than 4K. |
808 | * | |
809 | * DEFAULT_MIN_SIZE is the default SizeMin= we configure if nothing else is specified. */ | |
e594a3b1 LP |
810 | |
811 | if (PARTITION_IS_FOREIGN(p)) { | |
812 | /* Don't allow changing size of partitions not managed by us */ | |
813 | assert(p->current_size != UINT64_MAX); | |
814 | return p->current_size; | |
815 | } | |
816 | ||
e11745d0 | 817 | if (IN_SET(p->type.designator, PARTITION_ROOT_VERITY_SIG, PARTITION_USR_VERITY_SIG)) |
b456191d DDM |
818 | return VERITY_SIG_SIZE; |
819 | ||
fb08381c | 820 | sz = p->current_size != UINT64_MAX ? p->current_size : HARD_MIN_SIZE; |
757bc2e4 | 821 | |
170c9823 LP |
822 | if (!PARTITION_EXISTS(p)) { |
823 | uint64_t d = 0; | |
824 | ||
889914ef | 825 | if (p->encrypt != ENCRYPT_OFF) |
48a09a8f | 826 | d += round_up_size(LUKS2_METADATA_KEEP_FREE, context->grain_size); |
170c9823 LP |
827 | |
828 | if (p->copy_blocks_size != UINT64_MAX) | |
994b3031 | 829 | d += round_up_size(p->copy_blocks_size, context->grain_size); |
889914ef | 830 | else if (p->format || p->encrypt != ENCRYPT_OFF) { |
170c9823 LP |
831 | uint64_t f; |
832 | ||
833 | /* If we shall synthesize a file system, take minimal fs size into account (assumed to be 4K if not known) */ | |
994b3031 LP |
834 | f = p->format ? round_up_size(minimal_size_by_fs_name(p->format), context->grain_size) : UINT64_MAX; |
835 | d += f == UINT64_MAX ? context->grain_size : f; | |
170c9823 LP |
836 | } |
837 | ||
838 | if (d > sz) | |
839 | sz = d; | |
840 | } | |
757bc2e4 | 841 | |
2cb9c68c AV |
842 | override_min = p->suppressing ? MAX(p->size_min, p->suppressing->size_min) : p->size_min; |
843 | ||
844 | return MAX(round_up_size(override_min != UINT64_MAX ? override_min : DEFAULT_MIN_SIZE, context->grain_size), sz); | |
e594a3b1 LP |
845 | } |
846 | ||
994b3031 | 847 | static uint64_t partition_max_size(const Context *context, const Partition *p) { |
2cb9c68c | 848 | uint64_t sm, override_max; |
994b3031 | 849 | |
e594a3b1 LP |
850 | /* Calculate how large the partition may become at max. This is generally the configured maximum |
851 | * size, except when it already exists and is larger than that. In that case it's the existing size, | |
852 | * since we never want to shrink partitions. */ | |
853 | ||
994b3031 LP |
854 | assert(context); |
855 | assert(p); | |
856 | ||
e594a3b1 LP |
857 | if (PARTITION_IS_FOREIGN(p)) { |
858 | /* Don't allow changing size of partitions not managed by us */ | |
859 | assert(p->current_size != UINT64_MAX); | |
860 | return p->current_size; | |
861 | } | |
862 | ||
b456191d DDM |
863 | if (p->verity == VERITY_SIG) |
864 | return VERITY_SIG_SIZE; | |
865 | ||
2cb9c68c AV |
866 | override_max = p->suppressing ? MIN(p->size_max, p->suppressing->size_max) : p->size_max; |
867 | if (override_max == UINT64_MAX) | |
822d9b9a YW |
868 | return UINT64_MAX; |
869 | ||
2cb9c68c | 870 | sm = round_down_size(override_max, context->grain_size); |
994b3031 | 871 | |
e594a3b1 | 872 | if (p->current_size != UINT64_MAX) |
b0fbf90b | 873 | sm = MAX(p->current_size, sm); |
e594a3b1 | 874 | |
b0fbf90b | 875 | return MAX(partition_min_size(context, p), sm); |
e594a3b1 LP |
876 | } |
877 | ||
a801bb01 | 878 | static uint64_t partition_min_padding(const Partition *p) { |
2cb9c68c AV |
879 | uint64_t override_min; |
880 | ||
a801bb01 | 881 | assert(p); |
2cb9c68c AV |
882 | |
883 | override_min = p->suppressing ? MAX(p->padding_min, p->suppressing->padding_min) : p->padding_min; | |
884 | return override_min != UINT64_MAX ? override_min : 0; | |
a801bb01 YW |
885 | } |
886 | ||
887 | static uint64_t partition_max_padding(const Partition *p) { | |
888 | assert(p); | |
2cb9c68c | 889 | return p->suppressing ? MIN(p->padding_max, p->suppressing->padding_max) : p->padding_max; |
a801bb01 YW |
890 | } |
891 | ||
994b3031 | 892 | static uint64_t partition_min_size_with_padding(Context *context, const Partition *p) { |
e594a3b1 LP |
893 | uint64_t sz; |
894 | ||
895 | /* Calculate the disk space we need for this partition plus any free space coming after it. This | |
896 | * takes user configured padding into account as well as any additional whitespace needed to align | |
897 | * the next partition to 4K again. */ | |
898 | ||
994b3031 LP |
899 | assert(context); |
900 | assert(p); | |
901 | ||
a801bb01 | 902 | sz = partition_min_size(context, p) + partition_min_padding(p); |
e594a3b1 LP |
903 | |
904 | if (PARTITION_EXISTS(p)) { | |
905 | /* If the partition wasn't aligned, add extra space so that any we might add will be aligned */ | |
906 | assert(p->offset != UINT64_MAX); | |
994b3031 | 907 | return round_up_size(p->offset + sz, context->grain_size) - p->offset; |
e594a3b1 LP |
908 | } |
909 | ||
910 | /* If this is a new partition we'll place it aligned, hence we just need to round up the required size here */ | |
994b3031 | 911 | return round_up_size(sz, context->grain_size); |
e594a3b1 LP |
912 | } |
913 | ||
914 | static uint64_t free_area_available(const FreeArea *a) { | |
915 | assert(a); | |
916 | ||
917 | /* Determines how much of this free area is not allocated yet */ | |
918 | ||
919 | assert(a->size >= a->allocated); | |
920 | return a->size - a->allocated; | |
921 | } | |
922 | ||
58b06ac1 | 923 | static uint64_t free_area_current_end(Context *context, const FreeArea *a) { |
994b3031 LP |
924 | assert(context); |
925 | assert(a); | |
926 | ||
58b06ac1 YW |
927 | if (!a->after) |
928 | return free_area_available(a); | |
e594a3b1 | 929 | |
58b06ac1 YW |
930 | assert(a->after->offset != UINT64_MAX); |
931 | assert(a->after->current_size != UINT64_MAX); | |
e594a3b1 | 932 | |
58b06ac1 YW |
933 | /* Calculate where the free area ends, based on the offset of the partition preceding it. */ |
934 | return round_up_size(a->after->offset + a->after->current_size, context->grain_size) + free_area_available(a); | |
935 | } | |
e594a3b1 | 936 | |
58b06ac1 YW |
937 | static uint64_t free_area_min_end(Context *context, const FreeArea *a) { |
938 | assert(context); | |
939 | assert(a); | |
e594a3b1 | 940 | |
58b06ac1 YW |
941 | if (!a->after) |
942 | return 0; | |
e594a3b1 | 943 | |
58b06ac1 YW |
944 | assert(a->after->offset != UINT64_MAX); |
945 | assert(a->after->current_size != UINT64_MAX); | |
1052a114 | 946 | |
58b06ac1 YW |
947 | /* Calculate where the partition would end when we give it as much as it needs. */ |
948 | return round_up_size(a->after->offset + partition_min_size_with_padding(context, a->after), context->grain_size); | |
949 | } | |
950 | ||
951 | static uint64_t free_area_available_for_new_partitions(Context *context, const FreeArea *a) { | |
952 | assert(context); | |
953 | assert(a); | |
954 | ||
955 | /* Similar to free_area_available(), but takes into account that the required size and padding of the | |
956 | * preceding partition is honoured. */ | |
e594a3b1 | 957 | |
58b06ac1 | 958 | return LESS_BY(free_area_current_end(context, a), free_area_min_end(context, a)); |
e594a3b1 LP |
959 | } |
960 | ||
994b3031 LP |
961 | static int free_area_compare(FreeArea *const *a, FreeArea *const*b, Context *context) { |
962 | assert(context); | |
963 | ||
964 | return CMP(free_area_available_for_new_partitions(context, *a), | |
965 | free_area_available_for_new_partitions(context, *b)); | |
e594a3b1 LP |
966 | } |
967 | ||
994b3031 LP |
968 | static uint64_t charge_size(Context *context, uint64_t total, uint64_t amount) { |
969 | assert(context); | |
e594a3b1 | 970 | /* Subtract the specified amount from total, rounding up to multiple of 4K if there's room */ |
184cf99a | 971 | assert(amount <= total); |
994b3031 | 972 | return LESS_BY(total, round_up_size(amount, context->grain_size)); |
e594a3b1 LP |
973 | } |
974 | ||
975 | static uint64_t charge_weight(uint64_t total, uint64_t amount) { | |
976 | assert(amount <= total); | |
977 | return total - amount; | |
978 | } | |
979 | ||
14a4c4ed | 980 | static bool context_allocate_partitions(Context *context, uint64_t *ret_largest_free_area) { |
e594a3b1 LP |
981 | assert(context); |
982 | ||
f39cf264 YW |
983 | /* This may be called multiple times. Reset previous assignments. */ |
984 | for (size_t i = 0; i < context->n_free_areas; i++) | |
985 | context->free_areas[i]->allocated = 0; | |
986 | ||
14a4c4ed | 987 | /* Sort free areas by size, putting smallest first */ |
994b3031 | 988 | typesafe_qsort_r(context->free_areas, context->n_free_areas, free_area_compare, context); |
e594a3b1 | 989 | |
14a4c4ed LP |
990 | /* In any case return size of the largest free area (i.e. not the size of all free areas |
991 | * combined!) */ | |
992 | if (ret_largest_free_area) | |
993 | *ret_largest_free_area = | |
994 | context->n_free_areas == 0 ? 0 : | |
994b3031 | 995 | free_area_available_for_new_partitions(context, context->free_areas[context->n_free_areas-1]); |
14a4c4ed | 996 | |
cdbcc339 YW |
997 | /* Check that each existing partition can fit its area. */ |
998 | for (size_t i = 0; i < context->n_free_areas; i++) | |
999 | if (free_area_current_end(context, context->free_areas[i]) < | |
1000 | free_area_min_end(context, context->free_areas[i])) | |
1001 | return false; | |
1002 | ||
14a4c4ed | 1003 | /* A simple first-fit algorithm. We return true if we can fit the partitions in, otherwise false. */ |
e594a3b1 LP |
1004 | LIST_FOREACH(partitions, p, context->partitions) { |
1005 | bool fits = false; | |
1006 | uint64_t required; | |
1007 | FreeArea *a = NULL; | |
1008 | ||
2cb9c68c | 1009 | if (p->dropped || PARTITION_IS_FOREIGN(p) || PARTITION_SUPPRESSED(p)) |
e594a3b1 LP |
1010 | continue; |
1011 | ||
e594a3b1 | 1012 | /* How much do we need to fit? */ |
994b3031 LP |
1013 | required = partition_min_size_with_padding(context, p); |
1014 | assert(required % context->grain_size == 0); | |
e594a3b1 | 1015 | |
78e90592 AV |
1016 | /* For existing partitions, we should verify that they'll actually fit */ |
1017 | if (PARTITION_EXISTS(p)) { | |
1018 | if (p->current_size + p->current_padding < required) | |
1019 | return false; /* 😢 We won't be able to grow to the required min size! */ | |
1020 | ||
1021 | continue; | |
1022 | } | |
1023 | ||
1024 | /* For new partitions, see if there's a free area big enough */ | |
e594a3b1 LP |
1025 | for (size_t i = 0; i < context->n_free_areas; i++) { |
1026 | a = context->free_areas[i]; | |
1027 | ||
994b3031 | 1028 | if (free_area_available_for_new_partitions(context, a) >= required) { |
e594a3b1 LP |
1029 | fits = true; |
1030 | break; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | if (!fits) | |
1035 | return false; /* 😢 Oh no! We can't fit this partition into any free area! */ | |
1036 | ||
1037 | /* Assign the partition to this free area */ | |
1038 | p->allocated_to_area = a; | |
1039 | ||
1040 | /* Budget the minimal partition size */ | |
1041 | a->allocated += required; | |
1042 | } | |
1043 | ||
1044 | return true; | |
1045 | } | |
1046 | ||
2cb9c68c AV |
1047 | static bool context_unmerge_and_allocate_partitions(Context *context) { |
1048 | assert(context); | |
1049 | ||
1050 | /* This should only be called after plain context_allocate_partitions fails. This algorithm will | |
1051 | * try, in the order that minimizes the number of created supplement partitions, all combinations of | |
1052 | * un-suppressing supplement partitions until it finds one that works. */ | |
1053 | ||
1054 | /* First, let's try to un-suppress just one supplement partition and see if that gets us anywhere */ | |
1055 | LIST_FOREACH(partitions, p, context->partitions) { | |
1056 | Partition *unsuppressed; | |
1057 | ||
1058 | if (!p->suppressing) | |
1059 | continue; | |
1060 | ||
1061 | unsuppressed = TAKE_PTR(p->suppressing); | |
1062 | ||
1063 | if (context_allocate_partitions(context, NULL)) | |
1064 | return true; | |
1065 | ||
1066 | p->suppressing = unsuppressed; | |
1067 | } | |
1068 | ||
1069 | /* Looks like not. So we have to un-suppress at least two partitions. We can do this recursively */ | |
1070 | LIST_FOREACH(partitions, p, context->partitions) { | |
1071 | Partition *unsuppressed; | |
1072 | ||
1073 | if (!p->suppressing) | |
1074 | continue; | |
1075 | ||
1076 | unsuppressed = TAKE_PTR(p->suppressing); | |
1077 | ||
1078 | if (context_unmerge_and_allocate_partitions(context)) | |
1079 | return true; | |
1080 | ||
1081 | p->suppressing = unsuppressed; | |
1082 | } | |
1083 | ||
1084 | /* No combination of un-suppressed supplements made it possible to fit the partitions */ | |
1085 | return false; | |
1086 | } | |
1087 | ||
1088 | static uint32_t partition_weight(const Partition *p) { | |
1089 | assert(p); | |
1090 | return p->suppressing ? p->suppressing->weight : p->weight; | |
1091 | } | |
1092 | ||
1093 | static uint32_t partition_padding_weight(const Partition *p) { | |
1094 | assert(p); | |
1095 | return p->suppressing ? p->suppressing->padding_weight : p->padding_weight; | |
1096 | } | |
1097 | ||
e594a3b1 LP |
1098 | static int context_sum_weights(Context *context, FreeArea *a, uint64_t *ret) { |
1099 | uint64_t weight_sum = 0; | |
e594a3b1 LP |
1100 | |
1101 | assert(context); | |
1102 | assert(a); | |
1103 | assert(ret); | |
1104 | ||
1105 | /* Determine the sum of the weights of all partitions placed in or before the specified free area */ | |
1106 | ||
1107 | LIST_FOREACH(partitions, p, context->partitions) { | |
1108 | if (p->padding_area != a && p->allocated_to_area != a) | |
1109 | continue; | |
1110 | ||
2cb9c68c | 1111 | if (!INC_SAFE(&weight_sum, partition_weight(p))) |
e594a3b1 | 1112 | goto overflow_sum; |
e594a3b1 | 1113 | |
2cb9c68c | 1114 | if (!INC_SAFE(&weight_sum, partition_padding_weight(p))) |
e594a3b1 | 1115 | goto overflow_sum; |
e594a3b1 LP |
1116 | } |
1117 | ||
1118 | *ret = weight_sum; | |
1119 | return 0; | |
1120 | ||
1121 | overflow_sum: | |
da890466 | 1122 | return log_error_errno(SYNTHETIC_ERRNO(EOVERFLOW), "Combined weight of partition exceeds unsigned 64-bit range, refusing."); |
e594a3b1 LP |
1123 | } |
1124 | ||
0245e15a | 1125 | static uint64_t scale_by_weight(uint64_t value, uint64_t weight, uint64_t weight_sum) { |
e594a3b1 | 1126 | assert(weight_sum >= weight); |
e594a3b1 | 1127 | |
0245e15a YW |
1128 | for (;;) { |
1129 | if (weight == 0) | |
1130 | return 0; | |
1131 | if (weight == weight_sum) | |
1132 | return value; | |
1133 | if (value <= UINT64_MAX / weight) | |
1134 | return value * weight / weight_sum; | |
1135 | ||
1136 | /* Rescale weight and weight_sum to make not the calculation overflow. To satisfy the | |
1137 | * following conditions, 'weight_sum' is rounded up but 'weight' is rounded down: | |
1138 | * - the sum of scale_by_weight() for all weights must not be larger than the input value, | |
1139 | * - scale_by_weight() must not be larger than the ideal value (i.e. calculated with uint128_t). */ | |
1140 | weight_sum = DIV_ROUND_UP(weight_sum, 2); | |
1141 | weight /= 2; | |
e594a3b1 | 1142 | } |
e594a3b1 LP |
1143 | } |
1144 | ||
1145 | typedef enum GrowPartitionPhase { | |
bf99aed6 YW |
1146 | /* The zeroth phase: do not touch foreign partitions (i.e. those we don't manage). */ |
1147 | PHASE_FOREIGN, | |
1148 | ||
e594a3b1 LP |
1149 | /* The first phase: we charge partitions which need more (according to constraints) than their weight-based share. */ |
1150 | PHASE_OVERCHARGE, | |
1151 | ||
1152 | /* The second phase: we charge partitions which need less (according to constraints) than their weight-based share. */ | |
1153 | PHASE_UNDERCHARGE, | |
1154 | ||
1155 | /* The third phase: we distribute what remains among the remaining partitions, according to the weights */ | |
1156 | PHASE_DISTRIBUTE, | |
ae0613c6 LP |
1157 | |
1158 | _GROW_PARTITION_PHASE_MAX, | |
e594a3b1 LP |
1159 | } GrowPartitionPhase; |
1160 | ||
0245e15a | 1161 | static bool context_grow_partitions_phase( |
e594a3b1 LP |
1162 | Context *context, |
1163 | FreeArea *a, | |
1164 | GrowPartitionPhase phase, | |
1165 | uint64_t *span, | |
1166 | uint64_t *weight_sum) { | |
1167 | ||
2a503ad2 YW |
1168 | bool try_again = false; |
1169 | ||
e594a3b1 LP |
1170 | assert(context); |
1171 | assert(a); | |
0245e15a YW |
1172 | assert(span); |
1173 | assert(weight_sum); | |
e594a3b1 LP |
1174 | |
1175 | /* Now let's look at the intended weights and adjust them taking the minimum space assignments into | |
1176 | * account. i.e. if a partition has a small weight but a high minimum space value set it should not | |
1177 | * get any additional room from the left-overs. Similar, if two partitions have the same weight they | |
1178 | * should get the same space if possible, even if one has a smaller minimum size than the other. */ | |
1179 | LIST_FOREACH(partitions, p, context->partitions) { | |
e594a3b1 | 1180 | /* Look only at partitions associated with this free area, i.e. immediately |
162392b7 | 1181 | * preceding it, or allocated into it */ |
e594a3b1 LP |
1182 | if (p->allocated_to_area != a && p->padding_area != a) |
1183 | continue; | |
1184 | ||
1185 | if (p->new_size == UINT64_MAX) { | |
e594a3b1 | 1186 | uint64_t share, rsz, xsz; |
2cb9c68c | 1187 | uint32_t weight; |
2a503ad2 | 1188 | bool charge = false; |
e594a3b1 | 1189 | |
2cb9c68c AV |
1190 | weight = partition_weight(p); |
1191 | ||
e594a3b1 LP |
1192 | /* Calculate how much this space this partition needs if everyone would get |
1193 | * the weight based share */ | |
2cb9c68c | 1194 | share = scale_by_weight(*span, weight, *weight_sum); |
e594a3b1 | 1195 | |
994b3031 LP |
1196 | rsz = partition_min_size(context, p); |
1197 | xsz = partition_max_size(context, p); | |
e594a3b1 | 1198 | |
bf99aed6 YW |
1199 | if (phase == PHASE_FOREIGN && PARTITION_IS_FOREIGN(p)) { |
1200 | /* Never change of foreign partitions (i.e. those we don't manage) */ | |
1201 | ||
1202 | p->new_size = p->current_size; | |
1203 | charge = true; | |
1204 | ||
1205 | } else if (phase == PHASE_OVERCHARGE && rsz > share) { | |
e594a3b1 LP |
1206 | /* This partition needs more than its calculated share. Let's assign |
1207 | * it that, and take this partition out of all calculations and start | |
1208 | * again. */ | |
1209 | ||
1210 | p->new_size = rsz; | |
1211 | charge = try_again = true; | |
1212 | ||
822d9b9a | 1213 | } else if (phase == PHASE_UNDERCHARGE && xsz < share) { |
e594a3b1 LP |
1214 | /* This partition accepts less than its calculated |
1215 | * share. Let's assign it that, and take this partition out | |
1216 | * of all calculations and start again. */ | |
1217 | ||
1218 | p->new_size = xsz; | |
1219 | charge = try_again = true; | |
1220 | ||
1221 | } else if (phase == PHASE_DISTRIBUTE) { | |
1222 | /* This partition can accept its calculated share. Let's | |
1223 | * assign it. There's no need to restart things here since | |
1224 | * assigning this shouldn't impact the shares of the other | |
1225 | * partitions. */ | |
1226 | ||
d7c46b5e YW |
1227 | assert(share >= rsz); |
1228 | p->new_size = CLAMP(round_down_size(share, context->grain_size), rsz, xsz); | |
e594a3b1 LP |
1229 | charge = true; |
1230 | } | |
1231 | ||
1232 | if (charge) { | |
994b3031 | 1233 | *span = charge_size(context, *span, p->new_size); |
2cb9c68c | 1234 | *weight_sum = charge_weight(*weight_sum, weight); |
e594a3b1 | 1235 | } |
e594a3b1 LP |
1236 | } |
1237 | ||
1238 | if (p->new_padding == UINT64_MAX) { | |
a801bb01 | 1239 | uint64_t share, rsz, xsz; |
2cb9c68c | 1240 | uint32_t padding_weight; |
2a503ad2 | 1241 | bool charge = false; |
e594a3b1 | 1242 | |
2cb9c68c AV |
1243 | padding_weight = partition_padding_weight(p); |
1244 | ||
1245 | share = scale_by_weight(*span, padding_weight, *weight_sum); | |
e594a3b1 | 1246 | |
a801bb01 YW |
1247 | rsz = partition_min_padding(p); |
1248 | xsz = partition_max_padding(p); | |
1249 | ||
1250 | if (phase == PHASE_OVERCHARGE && rsz > share) { | |
1251 | p->new_padding = rsz; | |
e594a3b1 | 1252 | charge = try_again = true; |
a801bb01 YW |
1253 | } else if (phase == PHASE_UNDERCHARGE && xsz < share) { |
1254 | p->new_padding = xsz; | |
e594a3b1 LP |
1255 | charge = try_again = true; |
1256 | } else if (phase == PHASE_DISTRIBUTE) { | |
d7c46b5e YW |
1257 | assert(share >= rsz); |
1258 | p->new_padding = CLAMP(round_down_size(share, context->grain_size), rsz, xsz); | |
e594a3b1 LP |
1259 | charge = true; |
1260 | } | |
1261 | ||
1262 | if (charge) { | |
994b3031 | 1263 | *span = charge_size(context, *span, p->new_padding); |
2cb9c68c | 1264 | *weight_sum = charge_weight(*weight_sum, padding_weight); |
e594a3b1 | 1265 | } |
e594a3b1 LP |
1266 | } |
1267 | } | |
1268 | ||
2a503ad2 | 1269 | return !try_again; |
e594a3b1 LP |
1270 | } |
1271 | ||
19903a43 YW |
1272 | static void context_grow_partition_one(Context *context, FreeArea *a, Partition *p, uint64_t *span) { |
1273 | uint64_t m; | |
1274 | ||
1275 | assert(context); | |
1276 | assert(a); | |
1277 | assert(p); | |
1278 | assert(span); | |
1279 | ||
1280 | if (*span == 0) | |
1281 | return; | |
1282 | ||
1283 | if (p->allocated_to_area != a) | |
1284 | return; | |
1285 | ||
1286 | if (PARTITION_IS_FOREIGN(p)) | |
1287 | return; | |
1288 | ||
1289 | assert(p->new_size != UINT64_MAX); | |
1290 | ||
1291 | /* Calculate new size and align. */ | |
1292 | m = round_down_size(p->new_size + *span, context->grain_size); | |
1293 | /* But ensure this doesn't shrink the size. */ | |
1294 | m = MAX(m, p->new_size); | |
1295 | /* And ensure this doesn't exceed the maximum size. */ | |
1296 | m = MIN(m, partition_max_size(context, p)); | |
1297 | ||
1298 | assert(m >= p->new_size); | |
1299 | ||
1300 | *span = charge_size(context, *span, m - p->new_size); | |
1301 | p->new_size = m; | |
1302 | } | |
1303 | ||
e594a3b1 LP |
1304 | static int context_grow_partitions_on_free_area(Context *context, FreeArea *a) { |
1305 | uint64_t weight_sum = 0, span; | |
1306 | int r; | |
1307 | ||
1308 | assert(context); | |
1309 | assert(a); | |
1310 | ||
1311 | r = context_sum_weights(context, a, &weight_sum); | |
1312 | if (r < 0) | |
1313 | return r; | |
1314 | ||
1315 | /* Let's calculate the total area covered by this free area and the partition before it */ | |
1316 | span = a->size; | |
1317 | if (a->after) { | |
1318 | assert(a->after->offset != UINT64_MAX); | |
1319 | assert(a->after->current_size != UINT64_MAX); | |
1320 | ||
994b3031 | 1321 | span += round_up_size(a->after->offset + a->after->current_size, context->grain_size) - a->after->offset; |
e594a3b1 LP |
1322 | } |
1323 | ||
0245e15a YW |
1324 | for (GrowPartitionPhase phase = 0; phase < _GROW_PARTITION_PHASE_MAX;) |
1325 | if (context_grow_partitions_phase(context, a, phase, &span, &weight_sum)) | |
1326 | phase++; /* go to the next phase */ | |
e594a3b1 | 1327 | |
162392b7 | 1328 | /* We still have space left over? Donate to preceding partition if we have one */ |
19903a43 YW |
1329 | if (span > 0 && a->after) |
1330 | context_grow_partition_one(context, a, a->after, &span); | |
e594a3b1 | 1331 | |
162392b7 | 1332 | /* What? Even still some space left (maybe because there was no preceding partition, or it had a |
e594a3b1 | 1333 | * size limit), then let's donate it to whoever wants it. */ |
03677889 | 1334 | if (span > 0) |
e594a3b1 | 1335 | LIST_FOREACH(partitions, p, context->partitions) { |
19903a43 | 1336 | context_grow_partition_one(context, a, p, &span); |
e594a3b1 LP |
1337 | if (span == 0) |
1338 | break; | |
1339 | } | |
e594a3b1 | 1340 | |
162392b7 | 1341 | /* Yuck, still no one? Then make it padding */ |
e594a3b1 LP |
1342 | if (span > 0 && a->after) { |
1343 | assert(a->after->new_padding != UINT64_MAX); | |
1344 | a->after->new_padding += span; | |
1345 | } | |
1346 | ||
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | static int context_grow_partitions(Context *context) { | |
e594a3b1 LP |
1351 | int r; |
1352 | ||
1353 | assert(context); | |
1354 | ||
1355 | for (size_t i = 0; i < context->n_free_areas; i++) { | |
1356 | r = context_grow_partitions_on_free_area(context, context->free_areas[i]); | |
1357 | if (r < 0) | |
1358 | return r; | |
1359 | } | |
1360 | ||
1361 | /* All existing partitions that have no free space after them can't change size */ | |
1362 | LIST_FOREACH(partitions, p, context->partitions) { | |
1363 | if (p->dropped) | |
1364 | continue; | |
1365 | ||
1366 | if (!PARTITION_EXISTS(p) || p->padding_area) { | |
1367 | /* The algorithm above must have initialized this already */ | |
1368 | assert(p->new_size != UINT64_MAX); | |
1369 | continue; | |
1370 | } | |
1371 | ||
1372 | assert(p->new_size == UINT64_MAX); | |
1373 | p->new_size = p->current_size; | |
1374 | ||
1375 | assert(p->new_padding == UINT64_MAX); | |
1376 | p->new_padding = p->current_padding; | |
1377 | } | |
1378 | ||
1379 | return 0; | |
1380 | } | |
1381 | ||
00428745 | 1382 | static uint64_t find_first_unused_partno(Context *context) { |
e594a3b1 | 1383 | uint64_t partno = 0; |
e594a3b1 LP |
1384 | |
1385 | assert(context); | |
1386 | ||
5f59807d DDM |
1387 | for (partno = 0;; partno++) { |
1388 | bool found = false; | |
1389 | LIST_FOREACH(partitions, p, context->partitions) | |
1390 | if (p->partno != UINT64_MAX && p->partno == partno) | |
1391 | found = true; | |
1392 | if (!found) | |
1393 | break; | |
e594a3b1 LP |
1394 | } |
1395 | ||
00428745 DDM |
1396 | return partno; |
1397 | } | |
1398 | ||
1399 | static void context_place_partitions(Context *context) { | |
1400 | ||
1401 | assert(context); | |
1402 | ||
e594a3b1 LP |
1403 | for (size_t i = 0; i < context->n_free_areas; i++) { |
1404 | FreeArea *a = context->free_areas[i]; | |
2ea7eb00 FS |
1405 | _unused_ uint64_t left; |
1406 | uint64_t start; | |
e594a3b1 LP |
1407 | |
1408 | if (a->after) { | |
1409 | assert(a->after->offset != UINT64_MAX); | |
1410 | assert(a->after->new_size != UINT64_MAX); | |
1411 | assert(a->after->new_padding != UINT64_MAX); | |
1412 | ||
1413 | start = a->after->offset + a->after->new_size + a->after->new_padding; | |
1414 | } else | |
1415 | start = context->start; | |
1416 | ||
994b3031 | 1417 | start = round_up_size(start, context->grain_size); |
e594a3b1 LP |
1418 | left = a->size; |
1419 | ||
1420 | LIST_FOREACH(partitions, p, context->partitions) { | |
1421 | if (p->allocated_to_area != a) | |
1422 | continue; | |
1423 | ||
1424 | p->offset = start; | |
00428745 | 1425 | p->partno = find_first_unused_partno(context); |
e594a3b1 LP |
1426 | |
1427 | assert(left >= p->new_size); | |
1428 | start += p->new_size; | |
1429 | left -= p->new_size; | |
1430 | ||
1431 | assert(left >= p->new_padding); | |
1432 | start += p->new_padding; | |
1433 | left -= p->new_padding; | |
1434 | } | |
1435 | } | |
1436 | } | |
1437 | ||
e594a3b1 LP |
1438 | static int config_parse_type( |
1439 | const char *unit, | |
1440 | const char *filename, | |
1441 | unsigned line, | |
1442 | const char *section, | |
1443 | unsigned section_line, | |
1444 | const char *lvalue, | |
1445 | int ltype, | |
1446 | const char *rvalue, | |
1447 | void *data, | |
1448 | void *userdata) { | |
1449 | ||
22e932f4 | 1450 | GptPartitionType *type = ASSERT_PTR(data); |
e594a3b1 LP |
1451 | int r; |
1452 | ||
1453 | assert(rvalue); | |
e594a3b1 | 1454 | |
22e932f4 | 1455 | r = gpt_partition_type_from_string(rvalue, type); |
e594a3b1 LP |
1456 | if (r < 0) |
1457 | return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse partition type: %s", rvalue); | |
1458 | ||
9786dfe6 DDM |
1459 | if (arg_architecture >= 0) |
1460 | *type = gpt_partition_type_override_architecture(*type, arg_architecture); | |
1461 | ||
e594a3b1 LP |
1462 | return 0; |
1463 | } | |
1464 | ||
1465 | static int config_parse_label( | |
1466 | const char *unit, | |
1467 | const char *filename, | |
1468 | unsigned line, | |
1469 | const char *section, | |
1470 | unsigned section_line, | |
1471 | const char *lvalue, | |
1472 | int ltype, | |
1473 | const char *rvalue, | |
1474 | void *data, | |
1475 | void *userdata) { | |
1476 | ||
e031166e | 1477 | _cleanup_free_ char *resolved = NULL; |
99534007 | 1478 | char **label = ASSERT_PTR(data); |
e594a3b1 LP |
1479 | int r; |
1480 | ||
1481 | assert(rvalue); | |
e594a3b1 | 1482 | |
be9ce018 LP |
1483 | /* Nota bene: the empty label is a totally valid one. Let's hence not follow our usual rule of |
1484 | * assigning the empty string to reset to default here, but really accept it as label to set. */ | |
1485 | ||
de61a04b | 1486 | r = specifier_printf(rvalue, GPT_LABEL_MAX, system_and_tmp_specifier_table, arg_root, NULL, &resolved); |
e031166e | 1487 | if (r < 0) { |
e459258f | 1488 | log_syntax(unit, LOG_WARNING, filename, line, r, |
e031166e LP |
1489 | "Failed to expand specifiers in Label=, ignoring: %s", rvalue); |
1490 | return 0; | |
1491 | } | |
1492 | ||
1493 | if (!utf8_is_valid(resolved)) { | |
e594a3b1 LP |
1494 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1495 | "Partition label not valid UTF-8, ignoring: %s", rvalue); | |
1496 | return 0; | |
1497 | } | |
1498 | ||
22a0a36e LP |
1499 | r = gpt_partition_label_valid(resolved); |
1500 | if (r < 0) { | |
1501 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1502 | "Failed to check if string is valid as GPT partition label, ignoring: \"%s\" (from \"%s\")", | |
1503 | resolved, rvalue); | |
1504 | return 0; | |
1505 | } | |
1506 | if (!r) { | |
e594a3b1 | 1507 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
46072ae3 ZJS |
1508 | "Partition label too long for GPT table, ignoring: \"%s\" (from \"%s\")", |
1509 | resolved, rvalue); | |
e594a3b1 LP |
1510 | return 0; |
1511 | } | |
1512 | ||
e031166e | 1513 | free_and_replace(*label, resolved); |
e594a3b1 LP |
1514 | return 0; |
1515 | } | |
1516 | ||
1517 | static int config_parse_weight( | |
1518 | const char *unit, | |
1519 | const char *filename, | |
1520 | unsigned line, | |
1521 | const char *section, | |
1522 | unsigned section_line, | |
1523 | const char *lvalue, | |
1524 | int ltype, | |
1525 | const char *rvalue, | |
1526 | void *data, | |
1527 | void *userdata) { | |
1528 | ||
f126038f | 1529 | uint32_t *w = ASSERT_PTR(data), v; |
e594a3b1 LP |
1530 | int r; |
1531 | ||
1532 | assert(rvalue); | |
e594a3b1 LP |
1533 | |
1534 | r = safe_atou32(rvalue, &v); | |
1535 | if (r < 0) { | |
1536 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1537 | "Failed to parse weight value, ignoring: %s", rvalue); | |
1538 | return 0; | |
1539 | } | |
1540 | ||
1541 | if (v > 1000U*1000U) { | |
c8f3d767 | 1542 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
e594a3b1 LP |
1543 | "Weight needs to be in range 0…10000000, ignoring: %" PRIu32, v); |
1544 | return 0; | |
1545 | } | |
1546 | ||
f126038f | 1547 | *w = v; |
e594a3b1 LP |
1548 | return 0; |
1549 | } | |
1550 | ||
1551 | static int config_parse_size4096( | |
1552 | const char *unit, | |
1553 | const char *filename, | |
1554 | unsigned line, | |
1555 | const char *section, | |
1556 | unsigned section_line, | |
1557 | const char *lvalue, | |
1558 | int ltype, | |
1559 | const char *rvalue, | |
1560 | void *data, | |
1561 | void *userdata) { | |
1562 | ||
1563 | uint64_t *sz = data, parsed; | |
1564 | int r; | |
1565 | ||
1566 | assert(rvalue); | |
1567 | assert(data); | |
1568 | ||
1569 | r = parse_size(rvalue, 1024, &parsed); | |
1570 | if (r < 0) | |
c8f3d767 | 1571 | return log_syntax(unit, LOG_ERR, filename, line, r, |
e594a3b1 LP |
1572 | "Failed to parse size value: %s", rvalue); |
1573 | ||
1574 | if (ltype > 0) | |
1575 | *sz = round_up_size(parsed, 4096); | |
1576 | else if (ltype < 0) | |
1577 | *sz = round_down_size(parsed, 4096); | |
1578 | else | |
1579 | *sz = parsed; | |
1580 | ||
1581 | if (*sz != parsed) | |
e2341b6b DT |
1582 | log_syntax(unit, LOG_NOTICE, filename, line, r, "Rounded %s= size %" PRIu64 " %s %" PRIu64 ", a multiple of 4096.", |
1583 | lvalue, parsed, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), *sz); | |
e594a3b1 LP |
1584 | |
1585 | return 0; | |
1586 | } | |
1587 | ||
c380047b MC |
1588 | static int config_parse_block_size( |
1589 | const char *unit, | |
1590 | const char *filename, | |
1591 | unsigned line, | |
1592 | const char *section, | |
1593 | unsigned section_line, | |
1594 | const char *lvalue, | |
1595 | int ltype, | |
1596 | const char *rvalue, | |
1597 | void *data, | |
1598 | void *userdata) { | |
1599 | ||
1600 | uint64_t *blksz = ASSERT_PTR(data), parsed; | |
1601 | int r; | |
1602 | ||
1603 | assert(rvalue); | |
1604 | ||
1605 | r = parse_size(rvalue, 1024, &parsed); | |
1606 | if (r < 0) | |
1607 | return log_syntax(unit, LOG_ERR, filename, line, r, | |
1608 | "Failed to parse size value: %s", rvalue); | |
1609 | ||
1610 | if (parsed < 512 || parsed > 4096) | |
1611 | return log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EINVAL), | |
1612 | "Value not between 512 and 4096: %s", rvalue); | |
1613 | ||
1614 | if (!ISPOWEROF2(parsed)) | |
1615 | return log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EINVAL), | |
1616 | "Value not a power of 2: %s", rvalue); | |
1617 | ||
1618 | *blksz = parsed; | |
1619 | return 0; | |
1620 | } | |
1621 | ||
53171c04 LP |
1622 | static int config_parse_fstype( |
1623 | const char *unit, | |
1624 | const char *filename, | |
1625 | unsigned line, | |
1626 | const char *section, | |
1627 | unsigned section_line, | |
1628 | const char *lvalue, | |
1629 | int ltype, | |
1630 | const char *rvalue, | |
1631 | void *data, | |
1632 | void *userdata) { | |
1633 | ||
99534007 | 1634 | char **fstype = ASSERT_PTR(data); |
e59049d7 | 1635 | const char *e; |
53171c04 LP |
1636 | |
1637 | assert(rvalue); | |
53171c04 | 1638 | |
e59049d7 LP |
1639 | /* Let's provide an easy way to override the chosen fstype for file system partitions */ |
1640 | e = secure_getenv("SYSTEMD_REPART_OVERRIDE_FSTYPE"); | |
1641 | if (e && !streq(rvalue, e)) { | |
1642 | log_syntax(unit, LOG_NOTICE, filename, line, 0, | |
1643 | "Overriding defined file system type '%s' with '%s'.", rvalue, e); | |
1644 | rvalue = e; | |
1645 | } | |
1646 | ||
53171c04 LP |
1647 | if (!filename_is_valid(rvalue)) |
1648 | return log_syntax(unit, LOG_ERR, filename, line, 0, | |
1649 | "File system type is not valid, refusing: %s", rvalue); | |
1650 | ||
1651 | return free_and_strdup_warn(fstype, rvalue); | |
1652 | } | |
1653 | ||
8a794850 LP |
1654 | static int config_parse_copy_files( |
1655 | const char *unit, | |
1656 | const char *filename, | |
1657 | unsigned line, | |
1658 | const char *section, | |
1659 | unsigned section_line, | |
1660 | const char *lvalue, | |
1661 | int ltype, | |
1662 | const char *rvalue, | |
1663 | void *data, | |
1664 | void *userdata) { | |
1665 | ||
1666 | _cleanup_free_ char *source = NULL, *buffer = NULL, *resolved_source = NULL, *resolved_target = NULL; | |
1667 | const char *p = rvalue, *target; | |
de98e6a7 | 1668 | char ***copy_files = ASSERT_PTR(data); |
8a794850 LP |
1669 | int r; |
1670 | ||
1671 | assert(rvalue); | |
8a794850 LP |
1672 | |
1673 | r = extract_first_word(&p, &source, ":", EXTRACT_CUNESCAPE|EXTRACT_DONT_COALESCE_SEPARATORS); | |
1674 | if (r < 0) | |
1675 | return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract source path: %s", rvalue); | |
1676 | if (r == 0) { | |
1677 | log_syntax(unit, LOG_WARNING, filename, line, 0, "No argument specified: %s", rvalue); | |
1678 | return 0; | |
1679 | } | |
1680 | ||
1681 | r = extract_first_word(&p, &buffer, ":", EXTRACT_CUNESCAPE|EXTRACT_DONT_COALESCE_SEPARATORS); | |
1682 | if (r < 0) | |
1683 | return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract target path: %s", rvalue); | |
1684 | if (r == 0) | |
1685 | target = source; /* No target, then it's the same as the source */ | |
1686 | else | |
1687 | target = buffer; | |
1688 | ||
1689 | if (!isempty(p)) | |
1690 | return log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EINVAL), "Too many arguments: %s", rvalue); | |
1691 | ||
de61a04b | 1692 | r = specifier_printf(source, PATH_MAX-1, system_and_tmp_specifier_table, arg_root, NULL, &resolved_source); |
8a794850 LP |
1693 | if (r < 0) { |
1694 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1695 | "Failed to expand specifiers in CopyFiles= source, ignoring: %s", rvalue); | |
1696 | return 0; | |
1697 | } | |
1698 | ||
0ade2213 LP |
1699 | r = path_simplify_and_warn(resolved_source, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); |
1700 | if (r < 0) | |
8a794850 | 1701 | return 0; |
8a794850 | 1702 | |
de61a04b | 1703 | r = specifier_printf(target, PATH_MAX-1, system_and_tmp_specifier_table, arg_root, NULL, &resolved_target); |
8a794850 LP |
1704 | if (r < 0) { |
1705 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1706 | "Failed to expand specifiers in CopyFiles= target, ignoring: %s", resolved_target); | |
1707 | return 0; | |
1708 | } | |
1709 | ||
0ade2213 LP |
1710 | r = path_simplify_and_warn(resolved_target, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); |
1711 | if (r < 0) | |
8a794850 | 1712 | return 0; |
8a794850 | 1713 | |
de98e6a7 | 1714 | r = strv_consume_pair(copy_files, TAKE_PTR(resolved_source), TAKE_PTR(resolved_target)); |
8a794850 LP |
1715 | if (r < 0) |
1716 | return log_oom(); | |
1717 | ||
1718 | return 0; | |
1719 | } | |
1720 | ||
a9af8276 DDM |
1721 | static int config_parse_exclude_files( |
1722 | const char *unit, | |
1723 | const char *filename, | |
1724 | unsigned line, | |
1725 | const char *section, | |
1726 | unsigned section_line, | |
1727 | const char *lvalue, | |
1728 | int ltype, | |
1729 | const char *rvalue, | |
1730 | void *data, | |
1731 | void *userdata) { | |
81af8f99 | 1732 | |
a9af8276 | 1733 | char ***exclude_files = ASSERT_PTR(data); |
81af8f99 | 1734 | const char *p = ASSERT_PTR(rvalue); |
a9af8276 DDM |
1735 | int r; |
1736 | ||
1737 | if (isempty(rvalue)) { | |
1738 | *exclude_files = strv_free(*exclude_files); | |
1739 | return 0; | |
1740 | } | |
1741 | ||
81af8f99 DDM |
1742 | for (;;) { |
1743 | _cleanup_free_ char *word = NULL, *resolved = NULL; | |
a9af8276 | 1744 | |
81af8f99 DDM |
1745 | r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE); |
1746 | if (r == -ENOMEM) | |
1747 | return log_oom(); | |
1748 | if (r < 0) { | |
1749 | log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", p); | |
1750 | return 0; | |
1751 | } | |
1752 | if (r == 0) | |
1753 | return 0; | |
a9af8276 | 1754 | |
81af8f99 DDM |
1755 | r = specifier_printf(word, PATH_MAX-1, system_and_tmp_specifier_table, arg_root, NULL, &resolved); |
1756 | if (r < 0) { | |
1757 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1758 | "Failed to expand specifiers in %s path, ignoring: %s", lvalue, word); | |
1759 | return 0; | |
1760 | } | |
1761 | ||
1762 | r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE|PATH_KEEP_TRAILING_SLASH, unit, filename, line, lvalue); | |
1763 | if (r < 0) | |
1764 | return 0; | |
1765 | ||
1766 | if (strv_consume(exclude_files, TAKE_PTR(resolved)) < 0) | |
1767 | return log_oom(); | |
1768 | } | |
8a794850 LP |
1769 | |
1770 | return 0; | |
1771 | } | |
1772 | ||
5c08da58 LP |
1773 | static int config_parse_copy_blocks( |
1774 | const char *unit, | |
1775 | const char *filename, | |
1776 | unsigned line, | |
1777 | const char *section, | |
1778 | unsigned section_line, | |
1779 | const char *lvalue, | |
1780 | int ltype, | |
1781 | const char *rvalue, | |
1782 | void *data, | |
1783 | void *userdata) { | |
1784 | ||
1785 | _cleanup_free_ char *d = NULL; | |
99534007 | 1786 | Partition *partition = ASSERT_PTR(data); |
5c08da58 LP |
1787 | int r; |
1788 | ||
1789 | assert(rvalue); | |
5c08da58 LP |
1790 | |
1791 | if (isempty(rvalue)) { | |
1792 | partition->copy_blocks_path = mfree(partition->copy_blocks_path); | |
1793 | partition->copy_blocks_auto = false; | |
1794 | return 0; | |
1795 | } | |
1796 | ||
1797 | if (streq(rvalue, "auto")) { | |
1798 | partition->copy_blocks_path = mfree(partition->copy_blocks_path); | |
1799 | partition->copy_blocks_auto = true; | |
585c5c75 | 1800 | partition->copy_blocks_root = arg_root; |
5c08da58 LP |
1801 | return 0; |
1802 | } | |
1803 | ||
de61a04b | 1804 | r = specifier_printf(rvalue, PATH_MAX-1, system_and_tmp_specifier_table, arg_root, NULL, &d); |
5c08da58 LP |
1805 | if (r < 0) { |
1806 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1807 | "Failed to expand specifiers in CopyBlocks= source path, ignoring: %s", rvalue); | |
1808 | return 0; | |
1809 | } | |
1810 | ||
1811 | r = path_simplify_and_warn(d, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); | |
1812 | if (r < 0) | |
1813 | return 0; | |
1814 | ||
1815 | free_and_replace(partition->copy_blocks_path, d); | |
1816 | partition->copy_blocks_auto = false; | |
585c5c75 | 1817 | partition->copy_blocks_root = arg_root; |
5c08da58 LP |
1818 | return 0; |
1819 | } | |
1820 | ||
d83d8048 LP |
1821 | static int config_parse_make_dirs( |
1822 | const char *unit, | |
1823 | const char *filename, | |
1824 | unsigned line, | |
1825 | const char *section, | |
1826 | unsigned section_line, | |
1827 | const char *lvalue, | |
1828 | int ltype, | |
1829 | const char *rvalue, | |
1830 | void *data, | |
1831 | void *userdata) { | |
1832 | ||
440f805c | 1833 | char ***sv = ASSERT_PTR(data); |
99534007 | 1834 | const char *p = ASSERT_PTR(rvalue); |
d83d8048 LP |
1835 | int r; |
1836 | ||
d83d8048 LP |
1837 | for (;;) { |
1838 | _cleanup_free_ char *word = NULL, *d = NULL; | |
1839 | ||
1840 | r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE); | |
1841 | if (r == -ENOMEM) | |
1842 | return log_oom(); | |
1843 | if (r < 0) { | |
1844 | log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); | |
1845 | return 0; | |
1846 | } | |
1847 | if (r == 0) | |
1848 | return 0; | |
1849 | ||
de61a04b | 1850 | r = specifier_printf(word, PATH_MAX-1, system_and_tmp_specifier_table, arg_root, NULL, &d); |
d83d8048 LP |
1851 | if (r < 0) { |
1852 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1853 | "Failed to expand specifiers in MakeDirectories= parameter, ignoring: %s", word); | |
1854 | continue; | |
1855 | } | |
1856 | ||
1857 | r = path_simplify_and_warn(d, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); | |
1858 | if (r < 0) | |
1859 | continue; | |
1860 | ||
f75641b7 DDM |
1861 | if (strv_contains(*sv, d)) |
1862 | continue; | |
1863 | ||
440f805c | 1864 | r = strv_consume(sv, TAKE_PTR(d)); |
d83d8048 LP |
1865 | if (r < 0) |
1866 | return log_oom(); | |
1867 | } | |
1868 | } | |
1869 | ||
c64ddefd DDM |
1870 | static int config_parse_make_symlinks( |
1871 | const char *unit, | |
1872 | const char *filename, | |
1873 | unsigned line, | |
1874 | const char *section, | |
1875 | unsigned section_line, | |
1876 | const char *lvalue, | |
1877 | int ltype, | |
1878 | const char *rvalue, | |
1879 | void *data, | |
1880 | void *userdata) { | |
1881 | ||
1882 | char ***sv = ASSERT_PTR(data); | |
1883 | const char *p = ASSERT_PTR(rvalue); | |
1884 | int r; | |
1885 | ||
1886 | for (;;) { | |
1887 | _cleanup_free_ char *word = NULL, *path = NULL, *target = NULL, *d = NULL; | |
1888 | ||
1889 | r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE); | |
1890 | if (r == -ENOMEM) | |
1891 | return log_oom(); | |
1892 | if (r < 0) { | |
1893 | log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); | |
1894 | return 0; | |
1895 | } | |
1896 | if (r == 0) | |
1897 | return 0; | |
1898 | ||
1899 | const char *q = word; | |
1900 | r = extract_many_words(&q, ":", EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS, &path, &target); | |
1901 | if (r < 0) { | |
1902 | log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", q); | |
1903 | continue; | |
1904 | } | |
1905 | if (r != 2) { | |
1906 | log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL), | |
1907 | "Missing source or target in %s, ignoring", rvalue); | |
1908 | continue; | |
1909 | } | |
1910 | ||
1911 | r = specifier_printf(path, PATH_MAX-1, system_and_tmp_specifier_table, arg_root, /*userdata=*/ NULL, &d); | |
1912 | if (r < 0) { | |
1913 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1914 | "Failed to expand specifiers in Subvolumes= parameter, ignoring: %s", path); | |
1915 | continue; | |
1916 | } | |
1917 | ||
1918 | r = path_simplify_and_warn(d, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); | |
1919 | if (r < 0) | |
1920 | continue; | |
1921 | ||
1922 | r = strv_consume_pair(sv, TAKE_PTR(d), TAKE_PTR(target)); | |
1923 | if (r < 0) | |
1924 | return log_error_errno(r, "Failed to add symlink to list: %m"); | |
1925 | } | |
1926 | } | |
1927 | ||
562881c1 DDM |
1928 | static int config_parse_subvolumes( |
1929 | const char *unit, | |
1930 | const char *filename, | |
1931 | unsigned line, | |
1932 | const char *section, | |
1933 | unsigned section_line, | |
1934 | const char *lvalue, | |
1935 | int ltype, | |
1936 | const char *rvalue, | |
1937 | void *data, | |
1938 | void *userdata) { | |
1939 | ||
1940 | OrderedHashmap **subvolumes = ASSERT_PTR(data); | |
1941 | const char *p = ASSERT_PTR(rvalue); | |
1942 | int r; | |
1943 | ||
1944 | for (;;) { | |
1945 | _cleanup_free_ char *word = NULL, *path = NULL, *f = NULL, *d = NULL; | |
1946 | Subvolume *s = NULL; | |
1947 | ||
1948 | r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE); | |
1949 | if (r == -ENOMEM) | |
1950 | return log_oom(); | |
1951 | if (r < 0) { | |
1952 | log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); | |
1953 | return 0; | |
1954 | } | |
1955 | if (r == 0) | |
1956 | return 0; | |
1957 | ||
bc48bd83 DDM |
1958 | const char *q = word; |
1959 | r = extract_many_words(&q, ":", EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS, &path, &f); | |
562881c1 | 1960 | if (r < 0) { |
bc48bd83 | 1961 | log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", q); |
562881c1 DDM |
1962 | continue; |
1963 | } | |
1964 | ||
e2b0f237 | 1965 | r = specifier_printf(path, PATH_MAX-1, system_and_tmp_specifier_table, arg_root, /*userdata=*/ NULL, &d); |
562881c1 DDM |
1966 | if (r < 0) { |
1967 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
1968 | "Failed to expand specifiers in Subvolumes= parameter, ignoring: %s", path); | |
1969 | continue; | |
1970 | } | |
1971 | ||
1972 | r = path_simplify_and_warn(d, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); | |
1973 | if (r < 0) | |
1974 | continue; | |
1975 | ||
1976 | s = ordered_hashmap_get(*subvolumes, d); | |
1977 | if (!s) { | |
1978 | s = new(Subvolume, 1); | |
1979 | if (!s) | |
1980 | return log_oom(); | |
1981 | ||
1982 | *s = (Subvolume) { | |
1983 | .path = TAKE_PTR(d), | |
1984 | }; | |
1985 | ||
1986 | r = ordered_hashmap_ensure_put(subvolumes, &subvolume_hash_ops, s->path, s); | |
1987 | if (r < 0) { | |
1988 | subvolume_free(s); | |
1989 | return r; | |
1990 | } | |
1991 | } | |
1992 | ||
1993 | if (f) { | |
1994 | SubvolumeFlags flags = subvolume_flags_from_string(f); | |
1995 | if (flags == -EBADRQC) { | |
1996 | log_syntax(unit, LOG_WARNING, filename, line, r, "Unknown subvolume flag in subvolume, ignoring: %s", f); | |
1997 | continue; | |
1998 | } | |
1999 | if (flags < 0) { | |
2000 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse subvolume flags, ignoring: %s", f); | |
2001 | continue; | |
2002 | } | |
2003 | ||
2004 | s->flags = flags; | |
2005 | } | |
2006 | } | |
2007 | } | |
2008 | ||
3799fa80 DDM |
2009 | static int config_parse_default_subvolume( |
2010 | const char *unit, | |
2011 | const char *filename, | |
2012 | unsigned line, | |
2013 | const char *section, | |
2014 | unsigned section_line, | |
2015 | const char *lvalue, | |
2016 | int ltype, | |
2017 | const char *rvalue, | |
2018 | void *data, | |
2019 | void *userdata) { | |
2020 | ||
2021 | char **subvol = ASSERT_PTR(data); | |
2022 | _cleanup_free_ char *p = NULL; | |
2023 | int r; | |
2024 | ||
2025 | if (isempty(rvalue)) { | |
2026 | *subvol = mfree(*subvol); | |
2027 | return 0; | |
2028 | } | |
2029 | ||
2030 | r = specifier_printf(rvalue, PATH_MAX-1, system_and_tmp_specifier_table, arg_root, NULL, &p); | |
2031 | if (r < 0) { | |
2032 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2033 | "Failed to expand specifiers in DefaultSubvolume= parameter, ignoring: %s", rvalue); | |
2034 | return 0; | |
2035 | } | |
2036 | ||
2037 | r = path_simplify_and_warn(p, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); | |
2038 | if (r < 0) | |
2039 | return 0; | |
2040 | ||
2041 | return free_and_replace(*subvol, p); | |
2042 | } | |
2043 | ||
42efe5be | 2044 | static DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_encrypt, encrypt_mode, EncryptMode, ENCRYPT_OFF); |
889914ef | 2045 | |
e73309c5 LP |
2046 | static int config_parse_gpt_flags( |
2047 | const char *unit, | |
2048 | const char *filename, | |
2049 | unsigned line, | |
2050 | const char *section, | |
2051 | unsigned section_line, | |
2052 | const char *lvalue, | |
2053 | int ltype, | |
2054 | const char *rvalue, | |
2055 | void *data, | |
2056 | void *userdata) { | |
2057 | ||
99534007 | 2058 | uint64_t *gpt_flags = ASSERT_PTR(data); |
e73309c5 LP |
2059 | int r; |
2060 | ||
2061 | assert(rvalue); | |
e73309c5 LP |
2062 | |
2063 | r = safe_atou64(rvalue, gpt_flags); | |
2064 | if (r < 0) { | |
2065 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2066 | "Failed to parse Flags= value, ignoring: %s", rvalue); | |
2067 | return 0; | |
2068 | } | |
2069 | ||
2070 | return 0; | |
2071 | } | |
2072 | ||
11749b61 DDM |
2073 | static int config_parse_uuid( |
2074 | const char *unit, | |
2075 | const char *filename, | |
2076 | unsigned line, | |
2077 | const char *section, | |
2078 | unsigned section_line, | |
2079 | const char *lvalue, | |
2080 | int ltype, | |
2081 | const char *rvalue, | |
2082 | void *data, | |
2083 | void *userdata) { | |
2084 | ||
2085 | Partition *partition = ASSERT_PTR(data); | |
2086 | int r; | |
2087 | ||
2088 | if (isempty(rvalue)) { | |
2089 | partition->new_uuid = SD_ID128_NULL; | |
2090 | partition->new_uuid_is_set = false; | |
2091 | return 0; | |
2092 | } | |
2093 | ||
2094 | if (streq(rvalue, "null")) { | |
2095 | partition->new_uuid = SD_ID128_NULL; | |
2096 | partition->new_uuid_is_set = true; | |
2097 | return 0; | |
2098 | } | |
2099 | ||
2100 | r = sd_id128_from_string(rvalue, &partition->new_uuid); | |
2101 | if (r < 0) { | |
da890466 | 2102 | log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse 128-bit ID/UUID, ignoring: %s", rvalue); |
11749b61 DDM |
2103 | return 0; |
2104 | } | |
2105 | ||
2106 | partition->new_uuid_is_set = true; | |
2107 | ||
2108 | return 0; | |
2109 | } | |
2110 | ||
1a0541d4 DDM |
2111 | static int config_parse_mountpoint( |
2112 | const char *unit, | |
2113 | const char *filename, | |
2114 | unsigned line, | |
2115 | const char *section, | |
2116 | unsigned section_line, | |
2117 | const char *lvalue, | |
2118 | int ltype, | |
2119 | const char *rvalue, | |
2120 | void *data, | |
2121 | void *userdata) { | |
2122 | ||
2123 | _cleanup_free_ char *where = NULL, *options = NULL; | |
2124 | Partition *p = ASSERT_PTR(data); | |
2125 | int r; | |
2126 | ||
2127 | if (isempty(rvalue)) { | |
2128 | partition_mountpoint_free_many(p->mountpoints, p->n_mountpoints); | |
2129 | return 0; | |
2130 | } | |
2131 | ||
2132 | const char *q = rvalue; | |
2133 | r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_DONT_COALESCE_SEPARATORS|EXTRACT_UNQUOTE, | |
4f495126 | 2134 | &where, &options); |
1a0541d4 DDM |
2135 | if (r == -ENOMEM) |
2136 | return log_oom(); | |
2137 | if (r < 0) { | |
2138 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2139 | "Invalid syntax in %s=, ignoring: %s", lvalue, rvalue); | |
2140 | return 0; | |
2141 | } | |
2142 | if (r < 1) { | |
4e494e6a | 2143 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1a0541d4 DDM |
2144 | "Too few arguments in %s=, ignoring: %s", lvalue, rvalue); |
2145 | return 0; | |
2146 | } | |
2147 | if (!isempty(q)) { | |
4e494e6a | 2148 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1a0541d4 DDM |
2149 | "Too many arguments in %s=, ignoring: %s", lvalue, rvalue); |
2150 | return 0; | |
2151 | } | |
2152 | ||
2153 | r = path_simplify_and_warn(where, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); | |
2154 | if (r < 0) | |
2155 | return 0; | |
2156 | ||
2157 | if (!GREEDY_REALLOC(p->mountpoints, p->n_mountpoints + 1)) | |
2158 | return log_oom(); | |
2159 | ||
2160 | p->mountpoints[p->n_mountpoints++] = (PartitionMountPoint) { | |
2161 | .where = TAKE_PTR(where), | |
2162 | .options = TAKE_PTR(options), | |
2163 | }; | |
2164 | ||
2165 | return 0; | |
2166 | } | |
2167 | ||
2168 | static int config_parse_encrypted_volume( | |
2169 | const char *unit, | |
2170 | const char *filename, | |
2171 | unsigned line, | |
2172 | const char *section, | |
2173 | unsigned section_line, | |
2174 | const char *lvalue, | |
2175 | int ltype, | |
2176 | const char *rvalue, | |
2177 | void *data, | |
2178 | void *userdata) { | |
2179 | ||
2180 | _cleanup_free_ char *volume = NULL, *keyfile = NULL, *options = NULL; | |
2181 | Partition *p = ASSERT_PTR(data); | |
2182 | int r; | |
2183 | ||
2184 | if (isempty(rvalue)) { | |
2185 | p->encrypted_volume = mfree(p->encrypted_volume); | |
2186 | return 0; | |
2187 | } | |
2188 | ||
2189 | const char *q = rvalue; | |
2190 | r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_DONT_COALESCE_SEPARATORS|EXTRACT_UNQUOTE, | |
4f495126 | 2191 | &volume, &keyfile, &options); |
1a0541d4 DDM |
2192 | if (r == -ENOMEM) |
2193 | return log_oom(); | |
2194 | if (r < 0) { | |
2195 | log_syntax(unit, LOG_WARNING, filename, line, r, | |
2196 | "Invalid syntax in %s=, ignoring: %s", lvalue, rvalue); | |
2197 | return 0; | |
2198 | } | |
2199 | if (r < 1) { | |
4e494e6a | 2200 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1a0541d4 DDM |
2201 | "Too few arguments in %s=, ignoring: %s", lvalue, rvalue); |
2202 | return 0; | |
2203 | } | |
2204 | if (!isempty(q)) { | |
4e494e6a | 2205 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1a0541d4 DDM |
2206 | "Too many arguments in %s=, ignoring: %s", lvalue, rvalue); |
2207 | return 0; | |
2208 | } | |
2209 | ||
2210 | if (!filename_is_valid(volume)) { | |
4e494e6a | 2211 | log_syntax(unit, LOG_WARNING, filename, line, 0, |
1a0541d4 DDM |
2212 | "Volume name %s is not valid, ignoring", volume); |
2213 | return 0; | |
2214 | } | |
2215 | ||
2216 | partition_encrypted_volume_free(p->encrypted_volume); | |
2217 | ||
2218 | p->encrypted_volume = new(PartitionEncryptedVolume, 1); | |
2219 | if (!p->encrypted_volume) | |
2220 | return log_oom(); | |
2221 | ||
2222 | *p->encrypted_volume = (PartitionEncryptedVolume) { | |
2223 | .name = TAKE_PTR(volume), | |
2224 | .keyfile = TAKE_PTR(keyfile), | |
2225 | .options = TAKE_PTR(options), | |
2226 | }; | |
2227 | ||
2228 | return 0; | |
2229 | } | |
2230 | ||
42efe5be YW |
2231 | static DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_verity, verity_mode, VerityMode, VERITY_OFF); |
2232 | static DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_minimize, minimize_mode, MinimizeMode, MINIMIZE_OFF); | |
b5b7879a | 2233 | |
90a25577 DDM |
2234 | static int partition_finalize_fstype(Partition *p, const char *path) { |
2235 | _cleanup_free_ char *e = NULL, *upper = NULL; | |
2236 | ||
2237 | assert(p); | |
2238 | assert(path); | |
2239 | ||
2240 | if (!gpt_partition_type_has_filesystem(p->type)) | |
2241 | return 0; | |
2242 | ||
2243 | upper = strdup(partition_designator_to_string(p->type.designator)); | |
2244 | if (!upper) | |
2245 | return log_oom(); | |
2246 | ||
2247 | e = strjoin("SYSTEMD_REPART_OVERRIDE_FSTYPE_", string_replace_char(ascii_strupper(upper), '-', '_')); | |
2248 | if (!e) | |
2249 | return log_oom(); | |
2250 | ||
2251 | const char *v = secure_getenv(e); | |
2252 | if (!v || streq(p->format, v)) | |
2253 | return 0; | |
2254 | ||
2255 | log_syntax(NULL, LOG_NOTICE, path, 1, 0, | |
2256 | "Overriding defined file system type '%s' for '%s' partition with '%s'.", | |
2257 | p->format, partition_designator_to_string(p->type.designator), v); | |
2258 | ||
2259 | return free_and_strdup_warn(&p->format, v); | |
2260 | } | |
2261 | ||
22324523 DDM |
2262 | static bool partition_needs_populate(const Partition *p) { |
2263 | assert(p); | |
2cb9c68c AV |
2264 | assert(!p->supplement_for || !p->suppressing); /* Avoid infinite recursion */ |
2265 | return !strv_isempty(p->copy_files) || !strv_isempty(p->make_directories) || !strv_isempty(p->make_symlinks) || | |
2266 | (p->suppressing && partition_needs_populate(p->suppressing)); | |
22324523 DDM |
2267 | } |
2268 | ||
39fc0174 | 2269 | static int partition_read_definition(Partition *p, const char *path, const char *const *conf_file_dirs) { |
e594a3b1 LP |
2270 | |
2271 | ConfigTableItem table[] = { | |
27cacec9 DDM |
2272 | { "Partition", "Type", config_parse_type, 0, &p->type }, |
2273 | { "Partition", "Label", config_parse_label, 0, &p->new_label }, | |
2274 | { "Partition", "UUID", config_parse_uuid, 0, p }, | |
2275 | { "Partition", "Priority", config_parse_int32, 0, &p->priority }, | |
2276 | { "Partition", "Weight", config_parse_weight, 0, &p->weight }, | |
2277 | { "Partition", "PaddingWeight", config_parse_weight, 0, &p->padding_weight }, | |
2278 | { "Partition", "SizeMinBytes", config_parse_size4096, -1, &p->size_min }, | |
2279 | { "Partition", "SizeMaxBytes", config_parse_size4096, 1, &p->size_max }, | |
2280 | { "Partition", "PaddingMinBytes", config_parse_size4096, -1, &p->padding_min }, | |
2281 | { "Partition", "PaddingMaxBytes", config_parse_size4096, 1, &p->padding_max }, | |
2282 | { "Partition", "FactoryReset", config_parse_bool, 0, &p->factory_reset }, | |
2283 | { "Partition", "CopyBlocks", config_parse_copy_blocks, 0, p }, | |
2284 | { "Partition", "Format", config_parse_fstype, 0, &p->format }, | |
2285 | { "Partition", "CopyFiles", config_parse_copy_files, 0, &p->copy_files }, | |
2286 | { "Partition", "ExcludeFiles", config_parse_exclude_files, 0, &p->exclude_files_source }, | |
2287 | { "Partition", "ExcludeFilesTarget", config_parse_exclude_files, 0, &p->exclude_files_target }, | |
2288 | { "Partition", "MakeDirectories", config_parse_make_dirs, 0, &p->make_directories }, | |
c64ddefd | 2289 | { "Partition", "MakeSymlinks", config_parse_make_symlinks, 0, &p->make_symlinks }, |
27cacec9 DDM |
2290 | { "Partition", "Encrypt", config_parse_encrypt, 0, &p->encrypt }, |
2291 | { "Partition", "Verity", config_parse_verity, 0, &p->verity }, | |
2292 | { "Partition", "VerityMatchKey", config_parse_string, 0, &p->verity_match_key }, | |
2293 | { "Partition", "Flags", config_parse_gpt_flags, 0, &p->gpt_flags }, | |
2294 | { "Partition", "ReadOnly", config_parse_tristate, 0, &p->read_only }, | |
2295 | { "Partition", "NoAuto", config_parse_tristate, 0, &p->no_auto }, | |
2296 | { "Partition", "GrowFileSystem", config_parse_tristate, 0, &p->growfs }, | |
2297 | { "Partition", "SplitName", config_parse_string, 0, &p->split_name_format }, | |
2298 | { "Partition", "Minimize", config_parse_minimize, 0, &p->minimize }, | |
2299 | { "Partition", "Subvolumes", config_parse_subvolumes, 0, &p->subvolumes }, | |
2300 | { "Partition", "DefaultSubvolume", config_parse_default_subvolume, 0, &p->default_subvolume }, | |
2301 | { "Partition", "VerityDataBlockSizeBytes", config_parse_block_size, 0, &p->verity_data_block_size }, | |
2302 | { "Partition", "VerityHashBlockSizeBytes", config_parse_block_size, 0, &p->verity_hash_block_size }, | |
2303 | { "Partition", "MountPoint", config_parse_mountpoint, 0, p }, | |
2304 | { "Partition", "EncryptedVolume", config_parse_encrypted_volume, 0, p }, | |
2305 | { "Partition", "Compression", config_parse_string, CONFIG_PARSE_STRING_SAFE_AND_ASCII, &p->compression }, | |
2306 | { "Partition", "CompressionLevel", config_parse_string, CONFIG_PARSE_STRING_SAFE_AND_ASCII, &p->compression_level }, | |
2cb9c68c | 2307 | { "Partition", "SupplementFor", config_parse_string, 0, &p->supplement_for_name }, |
e594a3b1 LP |
2308 | {} |
2309 | }; | |
39fc0174 RP |
2310 | _cleanup_free_ char *filename = NULL; |
2311 | const char* dropin_dirname; | |
562881c1 | 2312 | int r; |
e594a3b1 | 2313 | |
39fc0174 RP |
2314 | r = path_extract_filename(path, &filename); |
2315 | if (r < 0) | |
bef69ae8 | 2316 | return log_error_errno(r, "Failed to extract filename from path '%s': %m", path); |
39fc0174 RP |
2317 | |
2318 | dropin_dirname = strjoina(filename, ".d"); | |
2319 | ||
2320 | r = config_parse_many( | |
2321 | STRV_MAKE_CONST(path), | |
2322 | conf_file_dirs, | |
2323 | dropin_dirname, | |
34f2fd50 | 2324 | arg_definitions ? NULL : arg_root, |
39fc0174 RP |
2325 | "Partition\0", |
2326 | config_item_table_lookup, table, | |
2327 | CONFIG_PARSE_WARN, | |
2328 | p, | |
2329 | NULL, | |
2330 | &p->drop_in_files); | |
e594a3b1 LP |
2331 | if (r < 0) |
2332 | return r; | |
2333 | ||
c74d50ff | 2334 | if (partition_type_exclude(&p->type)) |
7d505753 DDM |
2335 | return 0; |
2336 | ||
e594a3b1 LP |
2337 | if (p->size_min != UINT64_MAX && p->size_max != UINT64_MAX && p->size_min > p->size_max) |
2338 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2339 | "SizeMinBytes= larger than SizeMaxBytes=, refusing."); | |
2340 | ||
2341 | if (p->padding_min != UINT64_MAX && p->padding_max != UINT64_MAX && p->padding_min > p->padding_max) | |
2342 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2343 | "PaddingMinBytes= larger than PaddingMaxBytes=, refusing."); | |
2344 | ||
22e932f4 | 2345 | if (sd_id128_is_null(p->type.uuid)) |
e594a3b1 LP |
2346 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), |
2347 | "Type= not defined, refusing."); | |
2348 | ||
22324523 | 2349 | if ((p->copy_blocks_path || p->copy_blocks_auto) && (p->format || partition_needs_populate(p))) |
86320e62 | 2350 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), |
c64ddefd | 2351 | "Format=/CopyFiles=/MakeDirectories=/MakeSymlinks= and CopyBlocks= cannot be combined, refusing."); |
86320e62 | 2352 | |
22324523 | 2353 | if (partition_needs_populate(p) && streq_ptr(p->format, "swap")) |
8a794850 | 2354 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), |
c64ddefd | 2355 | "Format=swap and CopyFiles=/MakeDirectories=/MakeSymlinks= cannot be combined, refusing."); |
8a794850 | 2356 | |
973d6be4 DDM |
2357 | if (!p->format) { |
2358 | const char *format = NULL; | |
2359 | ||
942eba93 DDM |
2360 | if (p->type.designator == PARTITION_SWAP) |
2361 | format = "swap"; | |
2362 | else if (partition_needs_populate(p) || (p->encrypt != ENCRYPT_OFF && !(p->copy_blocks_path || p->copy_blocks_auto))) | |
973d6be4 DDM |
2363 | /* Pick "vfat" as file system for esp and xbootldr partitions, otherwise default to "ext4". */ |
2364 | format = IN_SET(p->type.designator, PARTITION_ESP, PARTITION_XBOOTLDR) ? "vfat" : "ext4"; | |
973d6be4 DDM |
2365 | |
2366 | if (format) { | |
2367 | p->format = strdup(format); | |
2368 | if (!p->format) | |
2369 | return log_oom(); | |
2370 | } | |
8a794850 LP |
2371 | } |
2372 | ||
5eef7047 | 2373 | if (p->minimize != MINIMIZE_OFF && !p->format && p->verity != VERITY_HASH) |
c4a87b76 | 2374 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), |
4e494e6a | 2375 | "Minimize= can only be enabled if Format= or Verity=hash are set."); |
c4a87b76 | 2376 | |
5eef7047 | 2377 | if (p->minimize == MINIMIZE_BEST && (p->format && !fstype_is_ro(p->format)) && p->verity != VERITY_HASH) |
5c33b686 | 2378 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), |
4e494e6a | 2379 | "Minimize=best can only be used with read-only filesystems or Verity=hash."); |
5c33b686 | 2380 | |
22324523 | 2381 | if (partition_needs_populate(p) && !mkfs_supports_root_option(p->format) && geteuid() != 0) |
6d6cefad | 2382 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EPERM), |
c64ddefd | 2383 | "Need to be root to populate %s filesystems with CopyFiles=/MakeDirectories=/MakeSymlinks=.", |
6d6cefad DDM |
2384 | p->format); |
2385 | ||
22324523 | 2386 | if (p->format && fstype_is_ro(p->format) && !partition_needs_populate(p)) |
0eb23798 | 2387 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), |
4e494e6a | 2388 | "Cannot format %s filesystem without source files, refusing.", p->format); |
0eb23798 | 2389 | |
b5b7879a DDM |
2390 | if (p->verity != VERITY_OFF || p->encrypt != ENCRYPT_OFF) { |
2391 | r = dlopen_cryptsetup(); | |
2392 | if (r < 0) | |
2393 | return log_syntax(NULL, LOG_ERR, path, 1, r, | |
2394 | "libcryptsetup not found, Verity=/Encrypt= are not supported: %m"); | |
2395 | } | |
2396 | ||
2397 | if (p->verity != VERITY_OFF && !p->verity_match_key) | |
2398 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
4e494e6a | 2399 | "VerityMatchKey= must be set if Verity=%s.", verity_mode_to_string(p->verity)); |
b5b7879a DDM |
2400 | |
2401 | if (p->verity == VERITY_OFF && p->verity_match_key) | |
2402 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
4e494e6a | 2403 | "VerityMatchKey= can only be set if Verity= is not \"%s\".", |
b5b7879a DDM |
2404 | verity_mode_to_string(p->verity)); |
2405 | ||
22324523 | 2406 | if (IN_SET(p->verity, VERITY_HASH, VERITY_SIG) && (p->copy_blocks_path || p->copy_blocks_auto || p->format || partition_needs_populate(p))) |
b5b7879a | 2407 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), |
c64ddefd | 2408 | "CopyBlocks=/CopyFiles=/Format=/MakeDirectories=/MakeSymlinks= cannot be used with Verity=%s.", |
b5b7879a DDM |
2409 | verity_mode_to_string(p->verity)); |
2410 | ||
2411 | if (p->verity != VERITY_OFF && p->encrypt != ENCRYPT_OFF) | |
2412 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
4e494e6a | 2413 | "Encrypting verity hash/data partitions is not supported."); |
b5b7879a | 2414 | |
b456191d DDM |
2415 | if (p->verity == VERITY_SIG && !arg_private_key) |
2416 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
4e494e6a | 2417 | "Verity signature partition requested but no private key provided (--private-key=)."); |
b456191d DDM |
2418 | |
2419 | if (p->verity == VERITY_SIG && !arg_certificate) | |
2420 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
4e494e6a | 2421 | "Verity signature partition requested but no PEM certificate provided (--certificate=)."); |
b456191d DDM |
2422 | |
2423 | if (p->verity == VERITY_SIG && (p->size_min != UINT64_MAX || p->size_max != UINT64_MAX)) | |
2424 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
4e494e6a | 2425 | "SizeMinBytes=/SizeMaxBytes= cannot be used with Verity=%s.", |
b456191d DDM |
2426 | verity_mode_to_string(p->verity)); |
2427 | ||
4d9ccdc9 DDM |
2428 | if (!ordered_hashmap_isempty(p->subvolumes) && arg_offline > 0) |
2429 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EOPNOTSUPP), | |
2430 | "Subvolumes= cannot be used with --offline=yes."); | |
2431 | ||
2432 | if (p->default_subvolume && arg_offline > 0) | |
2433 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EOPNOTSUPP), | |
2434 | "DefaultSubvolume= cannot be used with --offline=yes."); | |
2435 | ||
562881c1 | 2436 | if (p->default_subvolume && !ordered_hashmap_contains(p->subvolumes, p->default_subvolume)) |
3799fa80 | 2437 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), |
4e494e6a | 2438 | "DefaultSubvolume= must be one of the paths in Subvolumes=."); |
3799fa80 | 2439 | |
2cb9c68c AV |
2440 | if (p->supplement_for_name) { |
2441 | if (!filename_part_is_valid(p->supplement_for_name)) | |
2442 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2443 | "SupplementFor= is an invalid filename: %s", | |
2444 | p->supplement_for_name); | |
2445 | ||
2446 | if (p->copy_blocks_path || p->copy_blocks_auto || p->encrypt != ENCRYPT_OFF || | |
2447 | p->verity != VERITY_OFF) | |
2448 | return log_syntax(NULL, LOG_ERR, path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2449 | "SupplementFor= cannot be combined with CopyBlocks=/Encrypt=/Verity="); | |
2450 | } | |
2451 | ||
e73309c5 | 2452 | /* Verity partitions are read only, let's imply the RO flag hence, unless explicitly configured otherwise. */ |
2208d492 DDM |
2453 | if ((IN_SET(p->type.designator, |
2454 | PARTITION_ROOT_VERITY, | |
ade85cd5 | 2455 | PARTITION_USR_VERITY) || p->verity == VERITY_DATA) && p->read_only < 0) |
e73309c5 LP |
2456 | p->read_only = true; |
2457 | ||
1c41c1dc | 2458 | /* Default to "growfs" on, unless read-only */ |
22e932f4 | 2459 | if (gpt_partition_type_knows_growfs(p->type) && |
1c41c1dc LP |
2460 | p->read_only <= 0) |
2461 | p->growfs = true; | |
2462 | ||
4cee8333 DDM |
2463 | if (!p->split_name_format) { |
2464 | char *s = strdup("%t"); | |
2465 | if (!s) | |
2466 | return log_oom(); | |
2467 | ||
2468 | p->split_name_format = s; | |
2469 | } else if (streq(p->split_name_format, "-")) | |
2470 | p->split_name_format = mfree(p->split_name_format); | |
2471 | ||
90a25577 DDM |
2472 | r = partition_finalize_fstype(p, path); |
2473 | if (r < 0) | |
2474 | return r; | |
2475 | ||
7d505753 | 2476 | return 1; |
e594a3b1 LP |
2477 | } |
2478 | ||
b5b7879a DDM |
2479 | static int find_verity_sibling(Context *context, Partition *p, VerityMode mode, Partition **ret) { |
2480 | Partition *s = NULL; | |
2481 | ||
2482 | assert(p); | |
2483 | assert(p->verity != VERITY_OFF); | |
2484 | assert(p->verity_match_key); | |
2485 | assert(mode != VERITY_OFF); | |
2486 | assert(p->verity != mode); | |
2487 | assert(ret); | |
2488 | ||
2489 | /* Try to find the matching sibling partition of the given type for a verity partition. For a data | |
af3d3873 YW |
2490 | * partition, this is the corresponding hash partition with the same verity name (and vice versa for |
2491 | * the hash partition). */ | |
b5b7879a DDM |
2492 | |
2493 | LIST_FOREACH(partitions, q, context->partitions) { | |
2494 | if (p == q) | |
2495 | continue; | |
2496 | ||
2497 | if (q->verity != mode) | |
2498 | continue; | |
2499 | ||
2500 | assert(q->verity_match_key); | |
2501 | ||
2502 | if (!streq(p->verity_match_key, q->verity_match_key)) | |
2503 | continue; | |
2504 | ||
2505 | if (s) | |
2506 | return -ENOTUNIQ; | |
2507 | ||
2508 | s = q; | |
2509 | } | |
2510 | ||
2511 | if (!s) | |
2512 | return -ENXIO; | |
2513 | ||
2514 | *ret = s; | |
2515 | ||
2516 | return 0; | |
2517 | } | |
2518 | ||
3cdcf4e2 | 2519 | static int context_open_and_lock_backing_fd(const char *node, int operation, int *backing_fd) { |
1e46985a DDM |
2520 | _cleanup_close_ int fd = -EBADF; |
2521 | ||
2522 | assert(node); | |
2523 | assert(backing_fd); | |
2524 | ||
2525 | if (*backing_fd >= 0) | |
2526 | return 0; | |
2527 | ||
2528 | fd = open(node, O_RDONLY|O_CLOEXEC); | |
2529 | if (fd < 0) | |
2530 | return log_error_errno(errno, "Failed to open device '%s': %m", node); | |
2531 | ||
2532 | /* Tell udev not to interfere while we are processing the device */ | |
3cdcf4e2 | 2533 | if (flock(fd, operation) < 0) |
1e46985a DDM |
2534 | return log_error_errno(errno, "Failed to lock device '%s': %m", node); |
2535 | ||
2536 | log_debug("Device %s opened and locked.", node); | |
2537 | *backing_fd = TAKE_FD(fd); | |
2538 | return 1; | |
2539 | } | |
2540 | ||
2541 | static int determine_current_padding( | |
2542 | struct fdisk_context *c, | |
2543 | struct fdisk_table *t, | |
2544 | struct fdisk_partition *p, | |
2545 | uint64_t secsz, | |
2546 | uint64_t grainsz, | |
2547 | uint64_t *ret) { | |
2548 | ||
2549 | size_t n_partitions; | |
2550 | uint64_t offset, next = UINT64_MAX; | |
2551 | ||
2552 | assert(c); | |
2553 | assert(t); | |
2554 | assert(p); | |
2555 | assert(ret); | |
2556 | ||
2557 | if (!fdisk_partition_has_end(p)) | |
4e494e6a | 2558 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Partition has no end."); |
1e46985a DDM |
2559 | |
2560 | offset = fdisk_partition_get_end(p); | |
2561 | assert(offset < UINT64_MAX); | |
2562 | offset++; /* The end is one sector before the next partition or padding. */ | |
2563 | assert(offset < UINT64_MAX / secsz); | |
2564 | offset *= secsz; | |
2565 | ||
2566 | n_partitions = fdisk_table_get_nents(t); | |
2567 | for (size_t i = 0; i < n_partitions; i++) { | |
2568 | struct fdisk_partition *q; | |
2569 | uint64_t start; | |
2570 | ||
2571 | q = fdisk_table_get_partition(t, i); | |
2572 | if (!q) | |
4e494e6a | 2573 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to read partition metadata."); |
1e46985a DDM |
2574 | |
2575 | if (fdisk_partition_is_used(q) <= 0) | |
2576 | continue; | |
2577 | ||
2578 | if (!fdisk_partition_has_start(q)) | |
2579 | continue; | |
2580 | ||
2581 | start = fdisk_partition_get_start(q); | |
2582 | assert(start < UINT64_MAX / secsz); | |
2583 | start *= secsz; | |
2584 | ||
2585 | if (start >= offset && (next == UINT64_MAX || next > start)) | |
2586 | next = start; | |
2587 | } | |
2588 | ||
2589 | if (next == UINT64_MAX) { | |
2590 | /* No later partition? In that case check the end of the usable area */ | |
2591 | next = fdisk_get_last_lba(c); | |
2592 | assert(next < UINT64_MAX); | |
2593 | next++; /* The last LBA is one sector before the end */ | |
2594 | ||
2595 | assert(next < UINT64_MAX / secsz); | |
2596 | next *= secsz; | |
2597 | ||
2598 | if (offset > next) | |
2599 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Partition end beyond disk end."); | |
2600 | } | |
2601 | ||
2602 | assert(next >= offset); | |
2603 | offset = round_up_size(offset, grainsz); | |
2604 | next = round_down_size(next, grainsz); | |
2605 | ||
2606 | *ret = LESS_BY(next, offset); /* Saturated subtraction, rounding might have fucked things up */ | |
2607 | return 0; | |
2608 | } | |
2609 | ||
e1536d1f | 2610 | static int context_copy_from_one(Context *context, const char *src) { |
1e46985a DDM |
2611 | _cleanup_close_ int fd = -EBADF; |
2612 | _cleanup_(fdisk_unref_contextp) struct fdisk_context *c = NULL; | |
2613 | _cleanup_(fdisk_unref_tablep) struct fdisk_table *t = NULL; | |
2614 | Partition *last = NULL; | |
2615 | unsigned long secsz, grainsz; | |
2616 | size_t n_partitions; | |
2617 | int r; | |
2618 | ||
e1536d1f | 2619 | assert(src); |
1e46985a | 2620 | |
e1536d1f | 2621 | r = context_open_and_lock_backing_fd(src, LOCK_SH, &fd); |
1e46985a DDM |
2622 | if (r < 0) |
2623 | return r; | |
2624 | ||
2625 | r = fd_verify_regular(fd); | |
2626 | if (r < 0) | |
e1536d1f | 2627 | return log_error_errno(r, "%s is not a file: %m", src); |
1e46985a | 2628 | |
fd9fe57a | 2629 | r = fdisk_new_context_at(fd, /* path = */ NULL, /* read_only = */ true, /* sector_size = */ UINT32_MAX, &c); |
1e46985a DDM |
2630 | if (r < 0) |
2631 | return log_error_errno(r, "Failed to create fdisk context: %m"); | |
2632 | ||
2633 | secsz = fdisk_get_sector_size(c); | |
2634 | grainsz = fdisk_get_grain_size(c); | |
2635 | ||
2636 | /* Insist on a power of two, and that it's a multiple of 512, i.e. the traditional sector size. */ | |
2637 | if (secsz < 512 || !ISPOWEROF2(secsz)) | |
2638 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Sector size %lu is not a power of two larger than 512? Refusing.", secsz); | |
2639 | ||
2640 | if (!fdisk_is_labeltype(c, FDISK_DISKLABEL_GPT)) | |
e1536d1f | 2641 | return log_error_errno(SYNTHETIC_ERRNO(EHWPOISON), "Cannot copy from disk %s with no GPT disk label.", src); |
1e46985a DDM |
2642 | |
2643 | r = fdisk_get_partitions(c, &t); | |
2644 | if (r < 0) | |
2645 | return log_error_errno(r, "Failed to acquire partition table: %m"); | |
2646 | ||
2647 | n_partitions = fdisk_table_get_nents(t); | |
2648 | for (size_t i = 0; i < n_partitions; i++) { | |
2649 | _cleanup_(partition_freep) Partition *np = NULL; | |
2650 | _cleanup_free_ char *label_copy = NULL; | |
2651 | struct fdisk_partition *p; | |
2652 | const char *label; | |
2653 | uint64_t sz, start, padding; | |
2654 | sd_id128_t ptid, id; | |
2655 | GptPartitionType type; | |
2656 | ||
2657 | p = fdisk_table_get_partition(t, i); | |
2658 | if (!p) | |
4e494e6a | 2659 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to read partition metadata."); |
1e46985a DDM |
2660 | |
2661 | if (fdisk_partition_is_used(p) <= 0) | |
2662 | continue; | |
2663 | ||
2664 | if (fdisk_partition_has_start(p) <= 0 || | |
2665 | fdisk_partition_has_size(p) <= 0 || | |
2666 | fdisk_partition_has_partno(p) <= 0) | |
2667 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Found a partition without a position, size or number."); | |
2668 | ||
2669 | r = fdisk_partition_get_type_as_id128(p, &ptid); | |
2670 | if (r < 0) | |
2671 | return log_error_errno(r, "Failed to query partition type UUID: %m"); | |
2672 | ||
2673 | type = gpt_partition_type_from_uuid(ptid); | |
2674 | ||
2675 | r = fdisk_partition_get_uuid_as_id128(p, &id); | |
2676 | if (r < 0) | |
2677 | return log_error_errno(r, "Failed to query partition UUID: %m"); | |
2678 | ||
2679 | label = fdisk_partition_get_name(p); | |
2680 | if (!isempty(label)) { | |
2681 | label_copy = strdup(label); | |
2682 | if (!label_copy) | |
2683 | return log_oom(); | |
2684 | } | |
2685 | ||
2686 | sz = fdisk_partition_get_size(p); | |
2687 | assert(sz <= UINT64_MAX/secsz); | |
2688 | sz *= secsz; | |
2689 | ||
2690 | start = fdisk_partition_get_start(p); | |
2691 | assert(start <= UINT64_MAX/secsz); | |
2692 | start *= secsz; | |
2693 | ||
c74d50ff | 2694 | if (partition_type_exclude(&type)) |
1e46985a DDM |
2695 | continue; |
2696 | ||
2697 | np = partition_new(); | |
2698 | if (!np) | |
2699 | return log_oom(); | |
2700 | ||
2701 | np->type = type; | |
2702 | np->new_uuid = id; | |
2703 | np->new_uuid_is_set = true; | |
2704 | np->size_min = np->size_max = sz; | |
2705 | np->new_label = TAKE_PTR(label_copy); | |
2706 | ||
e1536d1f | 2707 | np->definition_path = strdup(src); |
1e46985a DDM |
2708 | if (!np->definition_path) |
2709 | return log_oom(); | |
2710 | ||
6e4d47b5 DDM |
2711 | np->split_name_format = strdup("%t"); |
2712 | if (!np->split_name_format) | |
2713 | return log_oom(); | |
2714 | ||
1e46985a DDM |
2715 | r = determine_current_padding(c, t, p, secsz, grainsz, &padding); |
2716 | if (r < 0) | |
2717 | return r; | |
2718 | ||
2719 | np->padding_min = np->padding_max = padding; | |
2720 | ||
e1536d1f | 2721 | np->copy_blocks_path = strdup(src); |
1e46985a DDM |
2722 | if (!np->copy_blocks_path) |
2723 | return log_oom(); | |
2724 | ||
2725 | np->copy_blocks_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
2726 | if (np->copy_blocks_fd < 0) | |
e1536d1f | 2727 | return log_error_errno(r, "Failed to duplicate file descriptor of %s: %m", src); |
1e46985a DDM |
2728 | |
2729 | np->copy_blocks_offset = start; | |
2730 | np->copy_blocks_size = sz; | |
2731 | ||
2732 | r = fdisk_partition_get_attrs_as_uint64(p, &np->gpt_flags); | |
2733 | if (r < 0) | |
2734 | return log_error_errno(r, "Failed to get partition flags: %m"); | |
2735 | ||
2736 | LIST_INSERT_AFTER(partitions, context->partitions, last, np); | |
2737 | last = TAKE_PTR(np); | |
2738 | context->n_partitions++; | |
2739 | } | |
2740 | ||
2741 | return 0; | |
2742 | } | |
2743 | ||
e1536d1f DDM |
2744 | static int context_copy_from(Context *context) { |
2745 | int r; | |
2746 | ||
2747 | assert(context); | |
2748 | ||
2749 | STRV_FOREACH(src, arg_copy_from) { | |
2750 | r = context_copy_from_one(context, *src); | |
2751 | if (r < 0) | |
2752 | return r; | |
2753 | } | |
2754 | ||
2755 | return 0; | |
2756 | } | |
2757 | ||
2cb9c68c AV |
2758 | static bool check_cross_def_ranges_valid(uint64_t a_min, uint64_t a_max, uint64_t b_min, uint64_t b_max) { |
2759 | if (a_min == UINT64_MAX && b_min == UINT64_MAX) | |
2760 | return true; | |
2761 | ||
2762 | if (a_max == UINT64_MAX && b_max == UINT64_MAX) | |
2763 | return true; | |
2764 | ||
2765 | return MAX(a_min != UINT64_MAX ? a_min : 0, b_min != UINT64_MAX ? b_min : 0) <= MIN(a_max, b_max); | |
2766 | } | |
2767 | ||
2768 | static int supplement_find_target(const Context *context, const Partition *supplement, Partition **ret) { | |
2769 | int r; | |
2770 | ||
2771 | assert(context); | |
2772 | assert(supplement); | |
2773 | assert(ret); | |
2774 | ||
2775 | LIST_FOREACH(partitions, p, context->partitions) { | |
2776 | _cleanup_free_ char *filename = NULL; | |
2777 | ||
2778 | if (p == supplement) | |
2779 | continue; | |
2780 | ||
2781 | r = path_extract_filename(p->definition_path, &filename); | |
2782 | if (r < 0) | |
2783 | return log_error_errno(r, | |
2784 | "Failed to extract filename from path '%s': %m", | |
2785 | p->definition_path); | |
2786 | ||
2787 | *ASSERT_PTR(endswith(filename, ".conf")) = 0; /* Remove the file extension */ | |
2788 | ||
2789 | if (!streq(supplement->supplement_for_name, filename)) | |
2790 | continue; | |
2791 | ||
2792 | if (p->supplement_for_name) | |
2793 | return log_syntax(NULL, LOG_ERR, supplement->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2794 | "SupplementFor= target is itself configured as a supplement."); | |
2795 | ||
2796 | if (p->suppressing) | |
2797 | return log_syntax(NULL, LOG_ERR, supplement->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2798 | "SupplementFor= target already has a supplement defined: %s", | |
2799 | p->suppressing->definition_path); | |
2800 | ||
2801 | *ret = p; | |
2802 | return 0; | |
2803 | } | |
2804 | ||
2805 | return log_syntax(NULL, LOG_ERR, supplement->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2806 | "Couldn't find target partition for SupplementFor=%s", | |
2807 | supplement->supplement_for_name); | |
2808 | } | |
2809 | ||
4b047310 | 2810 | static int context_read_definitions(Context *context) { |
e594a3b1 | 2811 | _cleanup_strv_free_ char **files = NULL; |
1e46985a | 2812 | Partition *last = LIST_FIND_TAIL(partitions, context->partitions); |
39fc0174 | 2813 | const char *const *dirs; |
9b05a371 | 2814 | int r; |
e594a3b1 LP |
2815 | |
2816 | assert(context); | |
2817 | ||
4b047310 | 2818 | dirs = (const char* const*) (arg_definitions ?: CONF_PATHS_STRV("repart.d")); |
39fc0174 | 2819 | |
4b047310 | 2820 | r = conf_files_list_strv(&files, ".conf", arg_definitions ? NULL : arg_root, CONF_FILES_REGULAR|CONF_FILES_FILTER_MASKED, dirs); |
e594a3b1 LP |
2821 | if (r < 0) |
2822 | return log_error_errno(r, "Failed to enumerate *.conf files: %m"); | |
2823 | ||
2824 | STRV_FOREACH(f, files) { | |
2825 | _cleanup_(partition_freep) Partition *p = NULL; | |
2826 | ||
2827 | p = partition_new(); | |
2828 | if (!p) | |
2829 | return log_oom(); | |
2830 | ||
2831 | p->definition_path = strdup(*f); | |
2832 | if (!p->definition_path) | |
2833 | return log_oom(); | |
2834 | ||
39fc0174 | 2835 | r = partition_read_definition(p, *f, dirs); |
e594a3b1 LP |
2836 | if (r < 0) |
2837 | return r; | |
7d505753 DDM |
2838 | if (r == 0) |
2839 | continue; | |
e594a3b1 LP |
2840 | |
2841 | LIST_INSERT_AFTER(partitions, context->partitions, last, p); | |
2842 | last = TAKE_PTR(p); | |
2843 | context->n_partitions++; | |
2844 | } | |
2845 | ||
b5b7879a DDM |
2846 | /* Check that each configured verity hash/data partition has a matching verity data/hash partition. */ |
2847 | ||
2848 | LIST_FOREACH(partitions, p, context->partitions) { | |
2849 | if (p->verity == VERITY_OFF) | |
2850 | continue; | |
2851 | ||
2852 | for (VerityMode mode = VERITY_OFF + 1; mode < _VERITY_MODE_MAX; mode++) { | |
b456191d | 2853 | Partition *q = NULL; |
b5b7879a DDM |
2854 | |
2855 | if (p->verity == mode) | |
2856 | continue; | |
2857 | ||
2858 | if (p->siblings[mode]) | |
2859 | continue; | |
2860 | ||
2861 | r = find_verity_sibling(context, p, mode, &q); | |
8e52ed02 DDM |
2862 | if (r == -ENXIO) { |
2863 | if (mode != VERITY_SIG) | |
2864 | return log_syntax(NULL, LOG_ERR, p->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), | |
4e494e6a | 2865 | "Missing verity %s partition for verity %s partition with VerityMatchKey=%s.", |
8e52ed02 DDM |
2866 | verity_mode_to_string(mode), verity_mode_to_string(p->verity), p->verity_match_key); |
2867 | } else if (r == -ENOTUNIQ) | |
b5b7879a | 2868 | return log_syntax(NULL, LOG_ERR, p->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), |
4e494e6a | 2869 | "Multiple verity %s partitions found for verity %s partition with VerityMatchKey=%s.", |
b5b7879a | 2870 | verity_mode_to_string(mode), verity_mode_to_string(p->verity), p->verity_match_key); |
8e52ed02 DDM |
2871 | else if (r < 0) |
2872 | return log_syntax(NULL, LOG_ERR, p->definition_path, 1, r, | |
4e494e6a | 2873 | "Failed to find verity %s partition for verity %s partition with VerityMatchKey=%s.", |
8e52ed02 | 2874 | verity_mode_to_string(mode), verity_mode_to_string(p->verity), p->verity_match_key); |
b5b7879a | 2875 | |
b456191d DDM |
2876 | if (q) { |
2877 | if (q->priority != p->priority) | |
2878 | return log_syntax(NULL, LOG_ERR, p->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), | |
4e494e6a | 2879 | "Priority mismatch (%i != %i) for verity sibling partitions with VerityMatchKey=%s.", |
9f08d7f7 | 2880 | p->priority, q->priority, p->verity_match_key); |
b5b7879a | 2881 | |
b456191d DDM |
2882 | p->siblings[mode] = q; |
2883 | } | |
b5b7879a DDM |
2884 | } |
2885 | } | |
2886 | ||
5eef7047 DDM |
2887 | LIST_FOREACH(partitions, p, context->partitions) { |
2888 | Partition *dp; | |
2889 | ||
2890 | if (p->verity != VERITY_HASH) | |
2891 | continue; | |
2892 | ||
2893 | if (p->minimize == MINIMIZE_OFF) | |
2894 | continue; | |
2895 | ||
2896 | assert_se(dp = p->siblings[VERITY_DATA]); | |
2897 | ||
5a77fbb8 | 2898 | if (dp->minimize == MINIMIZE_OFF && !(dp->copy_blocks_path || dp->copy_blocks_auto)) |
5eef7047 | 2899 | return log_syntax(NULL, LOG_ERR, p->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), |
4e494e6a | 2900 | "Minimize= set for verity hash partition but data partition does not set CopyBlocks= or Minimize=."); |
2cb9c68c | 2901 | } |
5eef7047 | 2902 | |
2cb9c68c AV |
2903 | LIST_FOREACH(partitions, p, context->partitions) { |
2904 | Partition *tgt = NULL; | |
2905 | ||
2906 | if (!p->supplement_for_name) | |
2907 | continue; | |
2908 | ||
2909 | r = supplement_find_target(context, p, &tgt); | |
2910 | if (r < 0) | |
2911 | return r; | |
2912 | ||
2913 | if (tgt->copy_blocks_path || tgt->copy_blocks_auto || tgt->encrypt != ENCRYPT_OFF || | |
2914 | tgt->verity != VERITY_OFF) | |
2915 | return log_syntax(NULL, LOG_ERR, p->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2916 | "SupplementFor= target uses CopyBlocks=/Encrypt=/Verity="); | |
2917 | ||
2918 | if (!check_cross_def_ranges_valid(p->size_min, p->size_max, tgt->size_min, tgt->size_max)) | |
2919 | return log_syntax(NULL, LOG_ERR, p->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2920 | "SizeMinBytes= larger than SizeMaxBytes= when merged with SupplementFor= target."); | |
2921 | ||
2922 | if (!check_cross_def_ranges_valid(p->padding_min, p->padding_max, tgt->padding_min, tgt->padding_max)) | |
2923 | return log_syntax(NULL, LOG_ERR, p->definition_path, 1, SYNTHETIC_ERRNO(EINVAL), | |
2924 | "PaddingMinBytes= larger than PaddingMaxBytes= when merged with SupplementFor= target."); | |
2925 | ||
2926 | p->supplement_for = tgt; | |
2927 | tgt->suppressing = tgt->supplement_target_for = p; | |
5eef7047 DDM |
2928 | } |
2929 | ||
e594a3b1 LP |
2930 | return 0; |
2931 | } | |
2932 | ||
e594a3b1 LP |
2933 | static int fdisk_ask_cb(struct fdisk_context *c, struct fdisk_ask *ask, void *data) { |
2934 | _cleanup_free_ char *ids = NULL; | |
2935 | int r; | |
2936 | ||
2937 | if (fdisk_ask_get_type(ask) != FDISK_ASKTYPE_STRING) | |
2938 | return -EINVAL; | |
2939 | ||
b7416360 | 2940 | ids = new(char, SD_ID128_UUID_STRING_MAX); |
e594a3b1 LP |
2941 | if (!ids) |
2942 | return -ENOMEM; | |
2943 | ||
b7416360 | 2944 | r = fdisk_ask_string_set_result(ask, sd_id128_to_uuid_string(*(sd_id128_t*) data, ids)); |
e594a3b1 LP |
2945 | if (r < 0) |
2946 | return r; | |
2947 | ||
2948 | TAKE_PTR(ids); | |
2949 | return 0; | |
2950 | } | |
2951 | ||
2952 | static int fdisk_set_disklabel_id_by_uuid(struct fdisk_context *c, sd_id128_t id) { | |
2953 | int r; | |
2954 | ||
2955 | r = fdisk_set_ask(c, fdisk_ask_cb, &id); | |
2956 | if (r < 0) | |
2957 | return r; | |
2958 | ||
2959 | r = fdisk_set_disklabel_id(c); | |
2960 | if (r < 0) | |
2961 | return r; | |
2962 | ||
2963 | return fdisk_set_ask(c, NULL, NULL); | |
2964 | } | |
2965 | ||
53171c04 | 2966 | static int derive_uuid(sd_id128_t base, const char *token, sd_id128_t *ret) { |
e594a3b1 | 2967 | union { |
ade99252 | 2968 | uint8_t md[SHA256_DIGEST_SIZE]; |
e594a3b1 LP |
2969 | sd_id128_t id; |
2970 | } result; | |
2971 | ||
53171c04 | 2972 | assert(token); |
e594a3b1 LP |
2973 | assert(ret); |
2974 | ||
53171c04 LP |
2975 | /* Derive a new UUID from the specified UUID in a stable and reasonably safe way. Specifically, we |
2976 | * calculate the HMAC-SHA256 of the specified token string, keyed by the supplied base (typically the | |
2977 | * machine ID). We use the machine ID as key (and not as cleartext!) of the HMAC operation since it's | |
2978 | * the machine ID we don't want to leak. */ | |
e594a3b1 | 2979 | |
ade99252 | 2980 | hmac_sha256(base.bytes, sizeof(base.bytes), token, strlen(token), result.md); |
e594a3b1 LP |
2981 | |
2982 | /* Take the first half, mark it as v4 UUID */ | |
2983 | assert_cc(sizeof(result.md) == sizeof(result.id) * 2); | |
2984 | *ret = id128_make_v4_uuid(result.id); | |
2985 | return 0; | |
2986 | } | |
2987 | ||
81e04781 VH |
2988 | static void derive_salt(sd_id128_t base, const char *token, uint8_t ret[static SHA256_DIGEST_SIZE]) { |
2989 | assert(token); | |
2990 | ||
2991 | hmac_sha256(base.bytes, sizeof(base.bytes), token, strlen(token), ret); | |
2992 | } | |
2993 | ||
cc751c75 | 2994 | static int context_load_partition_table(Context *context) { |
e594a3b1 LP |
2995 | _cleanup_(fdisk_unref_contextp) struct fdisk_context *c = NULL; |
2996 | _cleanup_(fdisk_unref_tablep) struct fdisk_table *t = NULL; | |
2997 | uint64_t left_boundary = UINT64_MAX, first_lba, last_lba, nsectors; | |
2998 | _cleanup_free_ char *disk_uuid_string = NULL; | |
2999 | bool from_scratch = false; | |
3000 | sd_id128_t disk_uuid; | |
3001 | size_t n_partitions; | |
994b3031 | 3002 | unsigned long secsz; |
93f125a6 | 3003 | uint64_t grainsz, fs_secsz = DEFAULT_FILESYSTEM_SECTOR_SIZE; |
e594a3b1 LP |
3004 | int r; |
3005 | ||
3006 | assert(context); | |
170c9823 LP |
3007 | assert(!context->fdisk_context); |
3008 | assert(!context->free_areas); | |
3009 | assert(context->start == UINT64_MAX); | |
3010 | assert(context->end == UINT64_MAX); | |
3011 | assert(context->total == UINT64_MAX); | |
e594a3b1 | 3012 | |
e1878ef7 DDM |
3013 | c = fdisk_new_context(); |
3014 | if (!c) | |
3015 | return log_oom(); | |
3016 | ||
93f125a6 | 3017 | if (arg_sector_size > 0) { |
93f125a6 | 3018 | fs_secsz = arg_sector_size; |
5f13fb0a | 3019 | r = fdisk_save_user_sector_size(c, /* phy= */ 0, arg_sector_size); |
93f125a6 | 3020 | } else { |
6c54e1d6 | 3021 | uint32_t ssz; |
93f125a6 | 3022 | struct stat st; |
6c54e1d6 | 3023 | |
a575f214 LP |
3024 | r = context_open_and_lock_backing_fd( |
3025 | context->node, | |
3026 | arg_dry_run ? LOCK_SH : LOCK_EX, | |
3027 | &context->backing_fd); | |
37734dc6 YW |
3028 | if (r < 0) |
3029 | return r; | |
6c54e1d6 | 3030 | |
93f125a6 | 3031 | if (fstat(context->backing_fd, &st) < 0) |
9f08d7f7 | 3032 | return log_error_errno(errno, "Failed to stat %s: %m", context->node); |
93f125a6 | 3033 | |
a575f214 | 3034 | if (IN_SET(arg_empty, EMPTY_REQUIRE, EMPTY_FORCE, EMPTY_CREATE) && S_ISREG(st.st_mode)) |
e53fcb09 | 3035 | /* Don't probe sector size from partition table if we are supposed to start from an empty disk */ |
d3436114 | 3036 | ssz = 512; |
a575f214 LP |
3037 | else { |
3038 | /* Auto-detect sector size if not specified. */ | |
3039 | r = probe_sector_size_prefer_ioctl(context->backing_fd, &ssz); | |
3040 | if (r < 0) | |
3041 | return log_error_errno(r, "Failed to probe sector size of '%s': %m", context->node); | |
3042 | ||
3043 | /* If we found the sector size and we're operating on a block device, use it as the file | |
3044 | * system sector size as well, as we know its the sector size of the actual block device and | |
3045 | * not just the offset at which we found the GPT header. */ | |
0e445aaa DDM |
3046 | if (r > 0 && S_ISBLK(st.st_mode)) { |
3047 | log_debug("Probed sector size of %s is %" PRIu32 " bytes.", context->node, ssz); | |
a575f214 | 3048 | fs_secsz = ssz; |
0e445aaa | 3049 | } |
a575f214 | 3050 | } |
93f125a6 | 3051 | |
6c54e1d6 | 3052 | r = fdisk_save_user_sector_size(c, /* phy= */ 0, ssz); |
e1878ef7 | 3053 | } |
6c54e1d6 LP |
3054 | if (r < 0) |
3055 | return log_error_errno(r, "Failed to set sector size: %m"); | |
e1878ef7 | 3056 | |
a26f4a49 LP |
3057 | /* libfdisk doesn't have an API to operate on arbitrary fds, hence reopen the fd going via the |
3058 | * /proc/self/fd/ magic path if we have an existing fd. Open the original file otherwise. */ | |
e1878ef7 DDM |
3059 | r = fdisk_assign_device( |
3060 | c, | |
3061 | context->backing_fd >= 0 ? FORMAT_PROC_FD_PATH(context->backing_fd) : context->node, | |
3062 | arg_dry_run); | |
170c9823 LP |
3063 | if (r == -EINVAL && arg_size_auto) { |
3064 | struct stat st; | |
3065 | ||
3066 | /* libfdisk returns EINVAL if opening a file of size zero. Let's check for that, and accept | |
3067 | * it if automatic sizing is requested. */ | |
3068 | ||
cc751c75 DDM |
3069 | if (context->backing_fd < 0) |
3070 | r = stat(context->node, &st); | |
170c9823 | 3071 | else |
cc751c75 | 3072 | r = fstat(context->backing_fd, &st); |
170c9823 | 3073 | if (r < 0) |
cc751c75 | 3074 | return log_error_errno(errno, "Failed to stat block device '%s': %m", context->node); |
170c9823 | 3075 | |
994b3031 | 3076 | if (S_ISREG(st.st_mode) && st.st_size == 0) { |
264668a8 | 3077 | /* Use the fallback values if we have no better idea */ |
93f125a6 DDM |
3078 | context->sector_size = fdisk_get_sector_size(c); |
3079 | context->fs_sector_size = fs_secsz; | |
994b3031 | 3080 | context->grain_size = 4096; |
170c9823 | 3081 | return /* from_scratch = */ true; |
994b3031 | 3082 | } |
170c9823 LP |
3083 | |
3084 | r = -EINVAL; | |
3085 | } | |
e594a3b1 | 3086 | if (r < 0) |
cc751c75 | 3087 | return log_error_errno(r, "Failed to open device '%s': %m", context->node); |
a26f4a49 | 3088 | |
cc751c75 | 3089 | if (context->backing_fd < 0) { |
a26f4a49 | 3090 | /* If we have no fd referencing the device yet, make a copy of the fd now, so that we have one */ |
3cdcf4e2 DDM |
3091 | r = context_open_and_lock_backing_fd(FORMAT_PROC_FD_PATH(fdisk_get_devfd(c)), |
3092 | arg_dry_run ? LOCK_SH : LOCK_EX, | |
3093 | &context->backing_fd); | |
37734dc6 YW |
3094 | if (r < 0) |
3095 | return r; | |
25baae50 | 3096 | } |
e594a3b1 | 3097 | |
994b3031 LP |
3098 | /* The offsets/sizes libfdisk returns to us will be in multiple of the sector size of the |
3099 | * device. This is typically 512, and sometimes 4096. Let's query libfdisk once for it, and then use | |
3100 | * it for all our needs. Note that the values we use ourselves always are in bytes though, thus mean | |
3101 | * the same thing universally. Also note that regardless what kind of sector size is in use we'll | |
3102 | * place partitions at multiples of 4K. */ | |
3103 | secsz = fdisk_get_sector_size(c); | |
3104 | ||
3105 | /* Insist on a power of two, and that it's a multiple of 512, i.e. the traditional sector size. */ | |
983ce0b5 LP |
3106 | if (secsz < 512 || !ISPOWEROF2(secsz)) |
3107 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Sector size %lu is not a power of two larger than 512? Refusing.", secsz); | |
994b3031 LP |
3108 | |
3109 | /* Use at least 4K, and ensure it's a multiple of the sector size, regardless if that is smaller or | |
3110 | * larger */ | |
3111 | grainsz = secsz < 4096 ? 4096 : secsz; | |
3112 | ||
0e445aaa | 3113 | log_debug("Sector size of device is %lu bytes. Using filesystem sector size of %" PRIu64 " and grain size of %" PRIu64 ".", secsz, fs_secsz, grainsz); |
994b3031 | 3114 | |
e594a3b1 LP |
3115 | switch (arg_empty) { |
3116 | ||
3117 | case EMPTY_REFUSE: | |
3118 | /* Refuse empty disks, insist on an existing GPT partition table */ | |
3119 | if (!fdisk_is_labeltype(c, FDISK_DISKLABEL_GPT)) | |
cc751c75 | 3120 | return log_notice_errno(SYNTHETIC_ERRNO(EHWPOISON), "Disk %s has no GPT disk label, not repartitioning.", context->node); |
e594a3b1 LP |
3121 | |
3122 | break; | |
3123 | ||
3124 | case EMPTY_REQUIRE: | |
3125 | /* Require an empty disk, refuse any existing partition table */ | |
3126 | r = fdisk_has_label(c); | |
3127 | if (r < 0) | |
cc751c75 | 3128 | return log_error_errno(r, "Failed to determine whether disk %s has a disk label: %m", context->node); |
e594a3b1 | 3129 | if (r > 0) |
cc751c75 | 3130 | return log_notice_errno(SYNTHETIC_ERRNO(EHWPOISON), "Disk %s already has a disk label, refusing.", context->node); |
e594a3b1 LP |
3131 | |
3132 | from_scratch = true; | |
3133 | break; | |
3134 | ||
3135 | case EMPTY_ALLOW: | |
3136 | /* Allow both an empty disk and an existing partition table, but only GPT */ | |
3137 | r = fdisk_has_label(c); | |
3138 | if (r < 0) | |
cc751c75 | 3139 | return log_error_errno(r, "Failed to determine whether disk %s has a disk label: %m", context->node); |
e594a3b1 LP |
3140 | if (r > 0) { |
3141 | if (!fdisk_is_labeltype(c, FDISK_DISKLABEL_GPT)) | |
cc751c75 | 3142 | return log_notice_errno(SYNTHETIC_ERRNO(EHWPOISON), "Disk %s has non-GPT disk label, not repartitioning.", context->node); |
e594a3b1 LP |
3143 | } else |
3144 | from_scratch = true; | |
3145 | ||
3146 | break; | |
3147 | ||
3148 | case EMPTY_FORCE: | |
a26f4a49 | 3149 | case EMPTY_CREATE: |
e594a3b1 LP |
3150 | /* Always reinitiaize the disk, don't consider what there was on the disk before */ |
3151 | from_scratch = true; | |
3152 | break; | |
243dd1e9 | 3153 | |
634b8471 | 3154 | default: |
243dd1e9 | 3155 | assert_not_reached(); |
e594a3b1 LP |
3156 | } |
3157 | ||
3158 | if (from_scratch) { | |
e594a3b1 LP |
3159 | r = fdisk_create_disklabel(c, "gpt"); |
3160 | if (r < 0) | |
3161 | return log_error_errno(r, "Failed to create GPT disk label: %m"); | |
3162 | ||
53171c04 | 3163 | r = derive_uuid(context->seed, "disk-uuid", &disk_uuid); |
e594a3b1 LP |
3164 | if (r < 0) |
3165 | return log_error_errno(r, "Failed to acquire disk GPT uuid: %m"); | |
3166 | ||
3167 | r = fdisk_set_disklabel_id_by_uuid(c, disk_uuid); | |
3168 | if (r < 0) | |
3169 | return log_error_errno(r, "Failed to set GPT disk label: %m"); | |
3170 | ||
3171 | goto add_initial_free_area; | |
3172 | } | |
3173 | ||
3174 | r = fdisk_get_disklabel_id(c, &disk_uuid_string); | |
3175 | if (r < 0) | |
3176 | return log_error_errno(r, "Failed to get current GPT disk label UUID: %m"); | |
3177 | ||
aea3f594 ZJS |
3178 | r = id128_from_string_nonzero(disk_uuid_string, &disk_uuid); |
3179 | if (r == -ENXIO) { | |
53171c04 | 3180 | r = derive_uuid(context->seed, "disk-uuid", &disk_uuid); |
e594a3b1 LP |
3181 | if (r < 0) |
3182 | return log_error_errno(r, "Failed to acquire disk GPT uuid: %m"); | |
3183 | ||
3184 | r = fdisk_set_disklabel_id(c); | |
3185 | if (r < 0) | |
3186 | return log_error_errno(r, "Failed to set GPT disk label: %m"); | |
aea3f594 ZJS |
3187 | } else if (r < 0) |
3188 | return log_error_errno(r, "Failed to parse current GPT disk label UUID: %m"); | |
e594a3b1 LP |
3189 | |
3190 | r = fdisk_get_partitions(c, &t); | |
3191 | if (r < 0) | |
3192 | return log_error_errno(r, "Failed to acquire partition table: %m"); | |
3193 | ||
3194 | n_partitions = fdisk_table_get_nents(t); | |
695cfd53 | 3195 | for (size_t i = 0; i < n_partitions; i++) { |
e594a3b1 | 3196 | _cleanup_free_ char *label_copy = NULL; |
03677889 | 3197 | Partition *last = NULL; |
e594a3b1 | 3198 | struct fdisk_partition *p; |
63b96eb9 | 3199 | const char *label; |
e594a3b1 LP |
3200 | uint64_t sz, start; |
3201 | bool found = false; | |
3202 | sd_id128_t ptid, id; | |
3203 | size_t partno; | |
3204 | ||
3205 | p = fdisk_table_get_partition(t, i); | |
3206 | if (!p) | |
4e494e6a | 3207 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to read partition metadata."); |
e594a3b1 LP |
3208 | |
3209 | if (fdisk_partition_is_used(p) <= 0) | |
3210 | continue; | |
3211 | ||
3212 | if (fdisk_partition_has_start(p) <= 0 || | |
3213 | fdisk_partition_has_size(p) <= 0 || | |
3214 | fdisk_partition_has_partno(p) <= 0) | |
3215 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Found a partition without a position, size or number."); | |
3216 | ||
63b96eb9 | 3217 | r = fdisk_partition_get_type_as_id128(p, &ptid); |
e594a3b1 | 3218 | if (r < 0) |
63b96eb9 | 3219 | return log_error_errno(r, "Failed to query partition type UUID: %m"); |
e594a3b1 | 3220 | |
02e32aa6 | 3221 | r = fdisk_partition_get_uuid_as_id128(p, &id); |
e594a3b1 | 3222 | if (r < 0) |
02e32aa6 | 3223 | return log_error_errno(r, "Failed to query partition UUID: %m"); |
e594a3b1 LP |
3224 | |
3225 | label = fdisk_partition_get_name(p); | |
3226 | if (!isempty(label)) { | |
3227 | label_copy = strdup(label); | |
3228 | if (!label_copy) | |
3229 | return log_oom(); | |
3230 | } | |
3231 | ||
3232 | sz = fdisk_partition_get_size(p); | |
ac33e147 | 3233 | assert(sz <= UINT64_MAX/secsz); |
994b3031 | 3234 | sz *= secsz; |
e594a3b1 LP |
3235 | |
3236 | start = fdisk_partition_get_start(p); | |
ac33e147 | 3237 | assert(start <= UINT64_MAX/secsz); |
994b3031 | 3238 | start *= secsz; |
e594a3b1 LP |
3239 | |
3240 | partno = fdisk_partition_get_partno(p); | |
3241 | ||
3242 | if (left_boundary == UINT64_MAX || left_boundary > start) | |
3243 | left_boundary = start; | |
3244 | ||
3245 | /* Assign this existing partition to the first partition of the right type that doesn't have | |
3246 | * an existing one assigned yet. */ | |
3247 | LIST_FOREACH(partitions, pp, context->partitions) { | |
3248 | last = pp; | |
3249 | ||
22e932f4 | 3250 | if (!sd_id128_equal(pp->type.uuid, ptid)) |
e594a3b1 LP |
3251 | continue; |
3252 | ||
3253 | if (!pp->current_partition) { | |
3254 | pp->current_uuid = id; | |
3255 | pp->current_size = sz; | |
3256 | pp->offset = start; | |
3257 | pp->partno = partno; | |
3258 | pp->current_label = TAKE_PTR(label_copy); | |
3259 | ||
3260 | pp->current_partition = p; | |
3261 | fdisk_ref_partition(p); | |
3262 | ||
994b3031 | 3263 | r = determine_current_padding(c, t, p, secsz, grainsz, &pp->current_padding); |
e594a3b1 LP |
3264 | if (r < 0) |
3265 | return r; | |
3266 | ||
3267 | if (pp->current_padding > 0) { | |
3268 | r = context_add_free_area(context, pp->current_padding, pp); | |
3269 | if (r < 0) | |
3270 | return r; | |
3271 | } | |
3272 | ||
3273 | found = true; | |
3274 | break; | |
3275 | } | |
3276 | } | |
3277 | ||
3278 | /* If we have no matching definition, create a new one. */ | |
3279 | if (!found) { | |
3280 | _cleanup_(partition_freep) Partition *np = NULL; | |
3281 | ||
3282 | np = partition_new(); | |
3283 | if (!np) | |
3284 | return log_oom(); | |
3285 | ||
3286 | np->current_uuid = id; | |
22e932f4 | 3287 | np->type = gpt_partition_type_from_uuid(ptid); |
e594a3b1 LP |
3288 | np->current_size = sz; |
3289 | np->offset = start; | |
3290 | np->partno = partno; | |
3291 | np->current_label = TAKE_PTR(label_copy); | |
3292 | ||
3293 | np->current_partition = p; | |
3294 | fdisk_ref_partition(p); | |
3295 | ||
994b3031 | 3296 | r = determine_current_padding(c, t, p, secsz, grainsz, &np->current_padding); |
e594a3b1 LP |
3297 | if (r < 0) |
3298 | return r; | |
3299 | ||
3300 | if (np->current_padding > 0) { | |
3301 | r = context_add_free_area(context, np->current_padding, np); | |
3302 | if (r < 0) | |
3303 | return r; | |
3304 | } | |
3305 | ||
3306 | LIST_INSERT_AFTER(partitions, context->partitions, last, TAKE_PTR(np)); | |
3307 | context->n_partitions++; | |
3308 | } | |
3309 | } | |
3310 | ||
2cb9c68c AV |
3311 | LIST_FOREACH(partitions, p, context->partitions) |
3312 | if (PARTITION_SUPPRESSED(p) && PARTITION_EXISTS(p)) | |
3313 | p->supplement_for->suppressing = NULL; | |
3314 | ||
e594a3b1 LP |
3315 | add_initial_free_area: |
3316 | nsectors = fdisk_get_nsectors(c); | |
994b3031 LP |
3317 | assert(nsectors <= UINT64_MAX/secsz); |
3318 | nsectors *= secsz; | |
e594a3b1 LP |
3319 | |
3320 | first_lba = fdisk_get_first_lba(c); | |
994b3031 LP |
3321 | assert(first_lba <= UINT64_MAX/secsz); |
3322 | first_lba *= secsz; | |
e594a3b1 LP |
3323 | |
3324 | last_lba = fdisk_get_last_lba(c); | |
3325 | assert(last_lba < UINT64_MAX); | |
3326 | last_lba++; | |
994b3031 LP |
3327 | assert(last_lba <= UINT64_MAX/secsz); |
3328 | last_lba *= secsz; | |
e594a3b1 LP |
3329 | |
3330 | assert(last_lba >= first_lba); | |
3331 | ||
3332 | if (left_boundary == UINT64_MAX) { | |
3333 | /* No partitions at all? Then the whole disk is up for grabs. */ | |
3334 | ||
994b3031 LP |
3335 | first_lba = round_up_size(first_lba, grainsz); |
3336 | last_lba = round_down_size(last_lba, grainsz); | |
e594a3b1 LP |
3337 | |
3338 | if (last_lba > first_lba) { | |
3339 | r = context_add_free_area(context, last_lba - first_lba, NULL); | |
3340 | if (r < 0) | |
3341 | return r; | |
3342 | } | |
3343 | } else { | |
3344 | /* Add space left of first partition */ | |
3345 | assert(left_boundary >= first_lba); | |
3346 | ||
994b3031 LP |
3347 | first_lba = round_up_size(first_lba, grainsz); |
3348 | left_boundary = round_down_size(left_boundary, grainsz); | |
3349 | last_lba = round_down_size(last_lba, grainsz); | |
e594a3b1 LP |
3350 | |
3351 | if (left_boundary > first_lba) { | |
3352 | r = context_add_free_area(context, left_boundary - first_lba, NULL); | |
3353 | if (r < 0) | |
3354 | return r; | |
3355 | } | |
3356 | } | |
3357 | ||
3358 | context->start = first_lba; | |
3359 | context->end = last_lba; | |
3360 | context->total = nsectors; | |
994b3031 | 3361 | context->sector_size = secsz; |
93f125a6 | 3362 | context->fs_sector_size = fs_secsz; |
994b3031 | 3363 | context->grain_size = grainsz; |
e594a3b1 LP |
3364 | context->fdisk_context = TAKE_PTR(c); |
3365 | ||
3366 | return from_scratch; | |
3367 | } | |
3368 | ||
3369 | static void context_unload_partition_table(Context *context) { | |
e594a3b1 LP |
3370 | assert(context); |
3371 | ||
80a226b2 | 3372 | LIST_FOREACH(partitions, p, context->partitions) { |
e594a3b1 LP |
3373 | |
3374 | /* Entirely remove partitions that have no configuration */ | |
3375 | if (PARTITION_IS_FOREIGN(p)) { | |
3376 | partition_unlink_and_free(context, p); | |
3377 | continue; | |
3378 | } | |
3379 | ||
3380 | /* Otherwise drop all data we read off the block device and everything we might have | |
3381 | * calculated based on it */ | |
3382 | ||
3383 | p->dropped = false; | |
3384 | p->current_size = UINT64_MAX; | |
3385 | p->new_size = UINT64_MAX; | |
3386 | p->current_padding = UINT64_MAX; | |
3387 | p->new_padding = UINT64_MAX; | |
3388 | p->partno = UINT64_MAX; | |
3389 | p->offset = UINT64_MAX; | |
3390 | ||
3391 | if (p->current_partition) { | |
3392 | fdisk_unref_partition(p->current_partition); | |
3393 | p->current_partition = NULL; | |
3394 | } | |
3395 | ||
3396 | if (p->new_partition) { | |
3397 | fdisk_unref_partition(p->new_partition); | |
3398 | p->new_partition = NULL; | |
3399 | } | |
3400 | ||
3401 | p->padding_area = NULL; | |
3402 | p->allocated_to_area = NULL; | |
3403 | ||
15d43e30 LP |
3404 | p->current_uuid = SD_ID128_NULL; |
3405 | p->current_label = mfree(p->current_label); | |
2cb9c68c AV |
3406 | |
3407 | /* A supplement partition is only ever un-suppressed if the existing partition table prevented | |
3408 | * us from suppressing it. So when unloading the partition table, we must re-suppress. */ | |
3409 | if (p->supplement_for) | |
3410 | p->supplement_for->suppressing = p; | |
e594a3b1 LP |
3411 | } |
3412 | ||
3413 | context->start = UINT64_MAX; | |
3414 | context->end = UINT64_MAX; | |
3415 | context->total = UINT64_MAX; | |
3416 | ||
3417 | if (context->fdisk_context) { | |
3418 | fdisk_unref_context(context->fdisk_context); | |
3419 | context->fdisk_context = NULL; | |
3420 | } | |
3421 | ||
3422 | context_free_free_areas(context); | |
3423 | } | |
3424 | ||
3425 | static int format_size_change(uint64_t from, uint64_t to, char **ret) { | |
2b59bf51 | 3426 | char *t; |
e594a3b1 LP |
3427 | |
3428 | if (from != UINT64_MAX) { | |
3429 | if (from == to || to == UINT64_MAX) | |
2b59bf51 | 3430 | t = strdup(FORMAT_BYTES(from)); |
e594a3b1 | 3431 | else |
fc03e80c | 3432 | t = strjoin(FORMAT_BYTES(from), " ", special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), " ", FORMAT_BYTES(to)); |
e594a3b1 | 3433 | } else if (to != UINT64_MAX) |
fc03e80c | 3434 | t = strjoin(special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), " ", FORMAT_BYTES(to)); |
e594a3b1 LP |
3435 | else { |
3436 | *ret = NULL; | |
3437 | return 0; | |
3438 | } | |
3439 | ||
2b59bf51 | 3440 | if (!t) |
e594a3b1 LP |
3441 | return log_oom(); |
3442 | ||
2b59bf51 | 3443 | *ret = t; |
e594a3b1 LP |
3444 | return 1; |
3445 | } | |
3446 | ||
3447 | static const char *partition_label(const Partition *p) { | |
3448 | assert(p); | |
3449 | ||
3450 | if (p->new_label) | |
3451 | return p->new_label; | |
3452 | ||
3453 | if (p->current_label) | |
3454 | return p->current_label; | |
3455 | ||
22e932f4 | 3456 | return gpt_partition_type_uuid_to_string(p->type.uuid); |
e594a3b1 LP |
3457 | } |
3458 | ||
cc751c75 | 3459 | static int context_dump_partitions(Context *context) { |
e594a3b1 LP |
3460 | _cleanup_(table_unrefp) Table *t = NULL; |
3461 | uint64_t sum_padding = 0, sum_size = 0; | |
e594a3b1 | 3462 | int r; |
1ffa5cfb | 3463 | const size_t roothash_col = 14, dropin_files_col = 15, split_path_col = 16; |
bf030f55 | 3464 | bool has_roothash = false, has_dropin_files = false, has_split_path = false; |
e594a3b1 | 3465 | |
309a747f | 3466 | if ((arg_json_format_flags & SD_JSON_FORMAT_OFF) && context->n_partitions == 0) { |
a015fbe7 TH |
3467 | log_info("Empty partition table."); |
3468 | return 0; | |
3469 | } | |
3470 | ||
bf030f55 DDM |
3471 | t = table_new("type", |
3472 | "label", | |
3473 | "uuid", | |
1ffa5cfb | 3474 | "partno", |
bf030f55 DDM |
3475 | "file", |
3476 | "node", | |
3477 | "offset", | |
3478 | "old size", | |
3479 | "raw size", | |
3480 | "size", | |
3481 | "old padding", | |
3482 | "raw padding", | |
3483 | "padding", | |
3484 | "activity", | |
3485 | "roothash", | |
3486 | "drop-in files", | |
3487 | "split path"); | |
e594a3b1 LP |
3488 | if (!t) |
3489 | return log_oom(); | |
3490 | ||
c82dfaf7 AV |
3491 | /* Starting in v257, these fields would be automatically formatted with underscores. This would have |
3492 | * been a breaking change, so to avoid that let's hard-code their original names. */ | |
3493 | table_set_json_field_name(t, 15, "drop-in_files"); | |
3494 | ||
a015fbe7 | 3495 | if (!DEBUG_LOGGING) { |
309a747f | 3496 | if (arg_json_format_flags & SD_JSON_FORMAT_OFF) |
a015fbe7 | 3497 | (void) table_set_display(t, (size_t) 0, (size_t) 1, (size_t) 2, (size_t) 3, (size_t) 4, |
1ffa5cfb | 3498 | (size_t) 8, (size_t) 9, (size_t) 12, roothash_col, dropin_files_col, |
bf030f55 | 3499 | split_path_col); |
a015fbe7 TH |
3500 | else |
3501 | (void) table_set_display(t, (size_t) 0, (size_t) 1, (size_t) 2, (size_t) 3, (size_t) 4, | |
1ffa5cfb DDM |
3502 | (size_t) 5, (size_t) 6, (size_t) 7, (size_t) 8, (size_t) 10, |
3503 | (size_t) 11, (size_t) 13, roothash_col, dropin_files_col, | |
bf030f55 | 3504 | split_path_col); |
a015fbe7 | 3505 | } |
e594a3b1 | 3506 | |
e594a3b1 | 3507 | (void) table_set_align_percent(t, table_get_cell(t, 0, 5), 100); |
9c07c9ec LP |
3508 | (void) table_set_align_percent(t, table_get_cell(t, 0, 6), 100); |
3509 | (void) table_set_align_percent(t, table_get_cell(t, 0, 7), 100); | |
3510 | (void) table_set_align_percent(t, table_get_cell(t, 0, 8), 100); | |
3511 | (void) table_set_align_percent(t, table_get_cell(t, 0, 9), 100); | |
3512 | (void) table_set_align_percent(t, table_get_cell(t, 0, 10), 100); | |
3513 | (void) table_set_align_percent(t, table_get_cell(t, 0, 11), 100); | |
e594a3b1 LP |
3514 | |
3515 | LIST_FOREACH(partitions, p, context->partitions) { | |
b5b7879a | 3516 | _cleanup_free_ char *size_change = NULL, *padding_change = NULL, *partname = NULL, *rh = NULL; |
b7416360 | 3517 | char uuid_buffer[SD_ID128_UUID_STRING_MAX]; |
a015fbe7 | 3518 | const char *label, *activity = NULL; |
e594a3b1 LP |
3519 | |
3520 | if (p->dropped) | |
3521 | continue; | |
3522 | ||
a015fbe7 TH |
3523 | if (p->current_size == UINT64_MAX) |
3524 | activity = "create"; | |
3525 | else if (p->current_size != p->new_size) | |
3526 | activity = "resize"; | |
3527 | ||
e594a3b1 | 3528 | label = partition_label(p); |
cc751c75 | 3529 | partname = p->partno != UINT64_MAX ? fdisk_partname(context->node, p->partno+1) : NULL; |
e594a3b1 LP |
3530 | |
3531 | r = format_size_change(p->current_size, p->new_size, &size_change); | |
3532 | if (r < 0) | |
3533 | return r; | |
3534 | ||
3535 | r = format_size_change(p->current_padding, p->new_padding, &padding_change); | |
3536 | if (r < 0) | |
3537 | return r; | |
3538 | ||
3539 | if (p->new_size != UINT64_MAX) | |
3540 | sum_size += p->new_size; | |
3541 | if (p->new_padding != UINT64_MAX) | |
3542 | sum_padding += p->new_padding; | |
3543 | ||
2ecc7a5b DDM |
3544 | if (p->verity != VERITY_OFF) { |
3545 | Partition *hp = p->verity == VERITY_HASH ? p : p->siblings[VERITY_HASH]; | |
3546 | ||
6b4b40f4 | 3547 | rh = iovec_is_set(&hp->roothash) ? hexmem(hp->roothash.iov_base, hp->roothash.iov_len) : strdup("TBD"); |
b5b7879a DDM |
3548 | if (!rh) |
3549 | return log_oom(); | |
3550 | } | |
3551 | ||
e594a3b1 LP |
3552 | r = table_add_many( |
3553 | t, | |
22e932f4 | 3554 | TABLE_STRING, gpt_partition_type_uuid_to_string_harder(p->type.uuid, uuid_buffer), |
be9ce018 | 3555 | TABLE_STRING, empty_to_null(label) ?: "-", TABLE_SET_COLOR, empty_to_null(label) ? NULL : ansi_grey(), |
11749b61 | 3556 | TABLE_UUID, p->new_uuid_is_set ? p->new_uuid : p->current_uuid, |
1ffa5cfb | 3557 | TABLE_UINT64, p->partno, |
d0242ac9 | 3558 | TABLE_PATH_BASENAME, p->definition_path, TABLE_SET_COLOR, p->definition_path ? NULL : ansi_grey(), |
a015fbe7 | 3559 | TABLE_STRING, partname ?: "-", TABLE_SET_COLOR, partname ? NULL : ansi_highlight(), |
e594a3b1 | 3560 | TABLE_UINT64, p->offset, |
a015fbe7 | 3561 | TABLE_UINT64, p->current_size == UINT64_MAX ? 0 : p->current_size, |
e594a3b1 LP |
3562 | TABLE_UINT64, p->new_size, |
3563 | TABLE_STRING, size_change, TABLE_SET_COLOR, !p->partitions_next && sum_size > 0 ? ansi_underline() : NULL, | |
a015fbe7 | 3564 | TABLE_UINT64, p->current_padding == UINT64_MAX ? 0 : p->current_padding, |
e594a3b1 | 3565 | TABLE_UINT64, p->new_padding, |
a015fbe7 | 3566 | TABLE_STRING, padding_change, TABLE_SET_COLOR, !p->partitions_next && sum_padding > 0 ? ansi_underline() : NULL, |
39fc0174 | 3567 | TABLE_STRING, activity ?: "unchanged", |
b5b7879a | 3568 | TABLE_STRING, rh, |
bf030f55 DDM |
3569 | TABLE_STRV, p->drop_in_files, |
3570 | TABLE_STRING, empty_to_null(p->split_path) ?: "-"); | |
e594a3b1 | 3571 | if (r < 0) |
f987a261 | 3572 | return table_log_add_error(r); |
39fc0174 | 3573 | |
b5b7879a | 3574 | has_roothash = has_roothash || !isempty(rh); |
3ab44dbd | 3575 | has_dropin_files = has_dropin_files || !strv_isempty(p->drop_in_files); |
bf030f55 | 3576 | has_split_path = has_split_path || !isempty(p->split_path); |
e594a3b1 LP |
3577 | } |
3578 | ||
309a747f | 3579 | if ((arg_json_format_flags & SD_JSON_FORMAT_OFF) && (sum_padding > 0 || sum_size > 0)) { |
e594a3b1 LP |
3580 | const char *a, *b; |
3581 | ||
2b59bf51 ZJS |
3582 | a = strjoina(special_glyph(SPECIAL_GLYPH_SIGMA), " = ", FORMAT_BYTES(sum_size)); |
3583 | b = strjoina(special_glyph(SPECIAL_GLYPH_SIGMA), " = ", FORMAT_BYTES(sum_padding)); | |
e594a3b1 LP |
3584 | |
3585 | r = table_add_many( | |
3586 | t, | |
3587 | TABLE_EMPTY, | |
3588 | TABLE_EMPTY, | |
3589 | TABLE_EMPTY, | |
3590 | TABLE_EMPTY, | |
3591 | TABLE_EMPTY, | |
3592 | TABLE_EMPTY, | |
3593 | TABLE_EMPTY, | |
1ffa5cfb | 3594 | TABLE_EMPTY, |
a015fbe7 | 3595 | TABLE_EMPTY, |
e594a3b1 LP |
3596 | TABLE_STRING, a, |
3597 | TABLE_EMPTY, | |
a015fbe7 TH |
3598 | TABLE_EMPTY, |
3599 | TABLE_STRING, b, | |
39fc0174 | 3600 | TABLE_EMPTY, |
b5b7879a | 3601 | TABLE_EMPTY, |
bf030f55 | 3602 | TABLE_EMPTY, |
a015fbe7 | 3603 | TABLE_EMPTY); |
e594a3b1 | 3604 | if (r < 0) |
f987a261 | 3605 | return table_log_add_error(r); |
e594a3b1 LP |
3606 | } |
3607 | ||
b5b7879a DDM |
3608 | if (!has_roothash) { |
3609 | r = table_hide_column_from_display(t, roothash_col); | |
3610 | if (r < 0) | |
3611 | return log_error_errno(r, "Failed to set columns to display: %m"); | |
3612 | } | |
3613 | ||
3ab44dbd | 3614 | if (!has_dropin_files) { |
39fc0174 RP |
3615 | r = table_hide_column_from_display(t, dropin_files_col); |
3616 | if (r < 0) | |
3617 | return log_error_errno(r, "Failed to set columns to display: %m"); | |
3618 | } | |
3619 | ||
bf030f55 DDM |
3620 | if (!has_split_path) { |
3621 | r = table_hide_column_from_display(t, split_path_col); | |
3622 | if (r < 0) | |
3623 | return log_error_errno(r, "Failed to set columns to display: %m"); | |
3624 | } | |
3625 | ||
896e678b | 3626 | return table_print_with_pager(t, arg_json_format_flags, arg_pager_flags, arg_legend); |
e594a3b1 LP |
3627 | } |
3628 | ||
f569dc6a | 3629 | static int context_bar_char_process_partition( |
e594a3b1 LP |
3630 | Context *context, |
3631 | Partition *bar[], | |
3632 | size_t n, | |
3633 | Partition *p, | |
f569dc6a FS |
3634 | size_t **start_array, |
3635 | size_t *n_start_array) { | |
e594a3b1 LP |
3636 | |
3637 | uint64_t from, to, total; | |
3638 | size_t x, y; | |
3639 | ||
3640 | assert(context); | |
3641 | assert(bar); | |
3642 | assert(n > 0); | |
3643 | assert(p); | |
f569dc6a FS |
3644 | assert(start_array); |
3645 | assert(n_start_array); | |
e594a3b1 LP |
3646 | |
3647 | if (p->dropped) | |
f569dc6a | 3648 | return 0; |
e594a3b1 LP |
3649 | |
3650 | assert(p->offset != UINT64_MAX); | |
3651 | assert(p->new_size != UINT64_MAX); | |
3652 | ||
3653 | from = p->offset; | |
3654 | to = from + p->new_size; | |
3655 | ||
d8daed09 TY |
3656 | assert(context->total > 0); |
3657 | total = context->total; | |
e594a3b1 | 3658 | |
d8daed09 TY |
3659 | assert(from <= total); |
3660 | x = from * n / total; | |
e594a3b1 | 3661 | |
d8daed09 TY |
3662 | assert(to <= total); |
3663 | y = to * n / total; | |
e594a3b1 LP |
3664 | |
3665 | assert(x <= y); | |
3666 | assert(y <= n); | |
3667 | ||
3668 | for (size_t i = x; i < y; i++) | |
3669 | bar[i] = p; | |
3670 | ||
f569dc6a FS |
3671 | if (!GREEDY_REALLOC_APPEND(*start_array, *n_start_array, &x, 1)) |
3672 | return log_oom(); | |
3673 | ||
3674 | return 1; | |
e594a3b1 LP |
3675 | } |
3676 | ||
3677 | static int partition_hint(const Partition *p, const char *node, char **ret) { | |
3678 | _cleanup_free_ char *buf = NULL; | |
e594a3b1 LP |
3679 | const char *label; |
3680 | sd_id128_t id; | |
3681 | ||
3682 | /* Tries really hard to find a suitable description for this partition */ | |
3683 | ||
7b2ffb59 LP |
3684 | if (p->definition_path) |
3685 | return path_extract_filename(p->definition_path, ret); | |
e594a3b1 LP |
3686 | |
3687 | label = partition_label(p); | |
3688 | if (!isempty(label)) { | |
3689 | buf = strdup(label); | |
3690 | goto done; | |
3691 | } | |
3692 | ||
3693 | if (p->partno != UINT64_MAX) { | |
3694 | buf = fdisk_partname(node, p->partno+1); | |
3695 | goto done; | |
3696 | } | |
3697 | ||
11749b61 | 3698 | if (p->new_uuid_is_set) |
e594a3b1 LP |
3699 | id = p->new_uuid; |
3700 | else if (!sd_id128_is_null(p->current_uuid)) | |
3701 | id = p->current_uuid; | |
3702 | else | |
22e932f4 | 3703 | id = p->type.uuid; |
e594a3b1 | 3704 | |
b7416360 | 3705 | buf = strdup(SD_ID128_TO_UUID_STRING(id)); |
e594a3b1 LP |
3706 | |
3707 | done: | |
3708 | if (!buf) | |
3709 | return -ENOMEM; | |
3710 | ||
3711 | *ret = TAKE_PTR(buf); | |
3712 | return 0; | |
3713 | } | |
3714 | ||
cc751c75 | 3715 | static int context_dump_partition_bar(Context *context) { |
e594a3b1 LP |
3716 | _cleanup_free_ Partition **bar = NULL; |
3717 | _cleanup_free_ size_t *start_array = NULL; | |
f569dc6a | 3718 | size_t n_start_array = 0; |
03677889 | 3719 | Partition *last = NULL; |
e594a3b1 LP |
3720 | bool z = false; |
3721 | size_t c, j = 0; | |
f569dc6a | 3722 | int r; |
e594a3b1 | 3723 | |
f391597c | 3724 | assert_se((c = columns()) >= 2); |
e594a3b1 LP |
3725 | c -= 2; /* We do not use the leftmost and rightmost character cell */ |
3726 | ||
3727 | bar = new0(Partition*, c); | |
3728 | if (!bar) | |
3729 | return log_oom(); | |
3730 | ||
f569dc6a FS |
3731 | LIST_FOREACH(partitions, p, context->partitions) { |
3732 | r = context_bar_char_process_partition(context, bar, c, p, &start_array, &n_start_array); | |
3733 | if (r < 0) | |
3734 | return r; | |
3735 | } | |
e594a3b1 LP |
3736 | |
3737 | putc(' ', stdout); | |
3738 | ||
3739 | for (size_t i = 0; i < c; i++) { | |
3740 | if (bar[i]) { | |
3741 | if (last != bar[i]) | |
3742 | z = !z; | |
3743 | ||
3744 | fputs(z ? ansi_green() : ansi_yellow(), stdout); | |
3745 | fputs(special_glyph(SPECIAL_GLYPH_DARK_SHADE), stdout); | |
3746 | } else { | |
3747 | fputs(ansi_normal(), stdout); | |
3748 | fputs(special_glyph(SPECIAL_GLYPH_LIGHT_SHADE), stdout); | |
3749 | } | |
3750 | ||
3751 | last = bar[i]; | |
3752 | } | |
3753 | ||
3754 | fputs(ansi_normal(), stdout); | |
3755 | putc('\n', stdout); | |
3756 | ||
f569dc6a | 3757 | for (size_t i = 0; i < n_start_array; i++) { |
e594a3b1 LP |
3758 | _cleanup_free_ char **line = NULL; |
3759 | ||
3760 | line = new0(char*, c); | |
3761 | if (!line) | |
3762 | return log_oom(); | |
3763 | ||
3764 | j = 0; | |
3765 | LIST_FOREACH(partitions, p, context->partitions) { | |
3766 | _cleanup_free_ char *d = NULL; | |
f569dc6a FS |
3767 | |
3768 | if (p->dropped) | |
3769 | continue; | |
3770 | ||
e594a3b1 LP |
3771 | j++; |
3772 | ||
f569dc6a | 3773 | if (i < n_start_array - j) { |
e594a3b1 LP |
3774 | |
3775 | if (line[start_array[j-1]]) { | |
3776 | const char *e; | |
3777 | ||
3778 | /* Upgrade final corner to the right with a branch to the right */ | |
3779 | e = startswith(line[start_array[j-1]], special_glyph(SPECIAL_GLYPH_TREE_RIGHT)); | |
3780 | if (e) { | |
3781 | d = strjoin(special_glyph(SPECIAL_GLYPH_TREE_BRANCH), e); | |
3782 | if (!d) | |
3783 | return log_oom(); | |
3784 | } | |
3785 | } | |
3786 | ||
3787 | if (!d) { | |
3788 | d = strdup(special_glyph(SPECIAL_GLYPH_TREE_VERTICAL)); | |
3789 | if (!d) | |
3790 | return log_oom(); | |
3791 | } | |
3792 | ||
f569dc6a | 3793 | } else if (i == n_start_array - j) { |
e594a3b1 LP |
3794 | _cleanup_free_ char *hint = NULL; |
3795 | ||
cc751c75 | 3796 | (void) partition_hint(p, context->node, &hint); |
e594a3b1 LP |
3797 | |
3798 | if (streq_ptr(line[start_array[j-1]], special_glyph(SPECIAL_GLYPH_TREE_VERTICAL))) | |
3799 | d = strjoin(special_glyph(SPECIAL_GLYPH_TREE_BRANCH), " ", strna(hint)); | |
3800 | else | |
3801 | d = strjoin(special_glyph(SPECIAL_GLYPH_TREE_RIGHT), " ", strna(hint)); | |
3802 | ||
3803 | if (!d) | |
3804 | return log_oom(); | |
3805 | } | |
3806 | ||
3807 | if (d) | |
3808 | free_and_replace(line[start_array[j-1]], d); | |
3809 | } | |
3810 | ||
3811 | putc(' ', stdout); | |
3812 | ||
3813 | j = 0; | |
3814 | while (j < c) { | |
3815 | if (line[j]) { | |
3816 | fputs(line[j], stdout); | |
3817 | j += utf8_console_width(line[j]); | |
3818 | } else { | |
3819 | putc(' ', stdout); | |
3820 | j++; | |
3821 | } | |
3822 | } | |
3823 | ||
3824 | putc('\n', stdout); | |
3825 | ||
3826 | for (j = 0; j < c; j++) | |
3827 | free(line[j]); | |
3828 | } | |
3829 | ||
3830 | return 0; | |
3831 | } | |
3832 | ||
b5b7879a DDM |
3833 | static bool context_has_roothash(Context *context) { |
3834 | LIST_FOREACH(partitions, p, context->partitions) | |
6b4b40f4 | 3835 | if (iovec_is_set(&p->roothash)) |
b5b7879a DDM |
3836 | return true; |
3837 | ||
3838 | return false; | |
3839 | } | |
3840 | ||
cc751c75 | 3841 | static int context_dump(Context *context, bool late) { |
a26d463d DDM |
3842 | int r; |
3843 | ||
3844 | assert(context); | |
a26d463d | 3845 | |
309a747f | 3846 | if (arg_pretty == 0 && FLAGS_SET(arg_json_format_flags, SD_JSON_FORMAT_OFF)) |
a26d463d DDM |
3847 | return 0; |
3848 | ||
b5b7879a DDM |
3849 | /* If we're outputting JSON, only dump after doing all operations so we can include the roothashes |
3850 | * in the output. */ | |
309a747f | 3851 | if (!late && !FLAGS_SET(arg_json_format_flags, SD_JSON_FORMAT_OFF)) |
b5b7879a DDM |
3852 | return 0; |
3853 | ||
3854 | /* If we're not outputting JSON, only dump again after doing all operations if there are any | |
3855 | * roothashes that we need to communicate to the user. */ | |
309a747f | 3856 | if (late && FLAGS_SET(arg_json_format_flags, SD_JSON_FORMAT_OFF) && !context_has_roothash(context)) |
b5b7879a DDM |
3857 | return 0; |
3858 | ||
cc751c75 | 3859 | r = context_dump_partitions(context); |
a26d463d DDM |
3860 | if (r < 0) |
3861 | return r; | |
3862 | ||
a954b427 ZJS |
3863 | /* Only write the partition bar once, even if we're writing the partition table twice to communicate |
3864 | * roothashes. */ | |
309a747f | 3865 | if (FLAGS_SET(arg_json_format_flags, SD_JSON_FORMAT_OFF) && !late) { |
a26d463d DDM |
3866 | putc('\n', stdout); |
3867 | ||
cc751c75 | 3868 | r = context_dump_partition_bar(context); |
a26d463d DDM |
3869 | if (r < 0) |
3870 | return r; | |
3871 | ||
3872 | putc('\n', stdout); | |
3873 | } | |
3874 | ||
3875 | fflush(stdout); | |
3876 | ||
3877 | return 0; | |
3878 | } | |
3879 | ||
3880 | ||
e594a3b1 | 3881 | static bool context_changed(const Context *context) { |
03677889 | 3882 | assert(context); |
e594a3b1 LP |
3883 | |
3884 | LIST_FOREACH(partitions, p, context->partitions) { | |
3885 | if (p->dropped) | |
3886 | continue; | |
3887 | ||
3888 | if (p->allocated_to_area) | |
3889 | return true; | |
3890 | ||
3891 | if (p->new_size != p->current_size) | |
3892 | return true; | |
3893 | } | |
3894 | ||
3895 | return false; | |
3896 | } | |
3897 | ||
81873a6b | 3898 | static int context_wipe_range(Context *context, uint64_t offset, uint64_t size) { |
e594a3b1 LP |
3899 | _cleanup_(blkid_free_probep) blkid_probe probe = NULL; |
3900 | int r; | |
3901 | ||
3902 | assert(context); | |
81873a6b LP |
3903 | assert(offset != UINT64_MAX); |
3904 | assert(size != UINT64_MAX); | |
e594a3b1 LP |
3905 | |
3906 | probe = blkid_new_probe(); | |
3907 | if (!probe) | |
3908 | return log_oom(); | |
3909 | ||
e594a3b1 | 3910 | errno = 0; |
81873a6b | 3911 | r = blkid_probe_set_device(probe, fdisk_get_devfd(context->fdisk_context), offset, size); |
e594a3b1 | 3912 | if (r < 0) |
81873a6b | 3913 | return log_error_errno(errno ?: SYNTHETIC_ERRNO(EIO), "Failed to allocate device probe for wiping."); |
e594a3b1 LP |
3914 | |
3915 | errno = 0; | |
3916 | if (blkid_probe_enable_superblocks(probe, true) < 0 || | |
3917 | blkid_probe_set_superblocks_flags(probe, BLKID_SUBLKS_MAGIC|BLKID_SUBLKS_BADCSUM) < 0 || | |
3918 | blkid_probe_enable_partitions(probe, true) < 0 || | |
3919 | blkid_probe_set_partitions_flags(probe, BLKID_PARTS_MAGIC) < 0) | |
81873a6b | 3920 | return log_error_errno(errno ?: SYNTHETIC_ERRNO(EIO), "Failed to enable superblock and partition probing."); |
e594a3b1 LP |
3921 | |
3922 | for (;;) { | |
3923 | errno = 0; | |
3924 | r = blkid_do_probe(probe); | |
3925 | if (r < 0) | |
9f08d7f7 | 3926 | return log_error_errno(errno_or_else(EIO), "Failed to probe for file systems."); |
e594a3b1 LP |
3927 | if (r > 0) |
3928 | break; | |
3929 | ||
3930 | errno = 0; | |
3931 | if (blkid_do_wipe(probe, false) < 0) | |
9f08d7f7 | 3932 | return log_error_errno(errno_or_else(EIO), "Failed to wipe file system signature."); |
e594a3b1 LP |
3933 | } |
3934 | ||
e594a3b1 LP |
3935 | return 0; |
3936 | } | |
3937 | ||
81873a6b LP |
3938 | static int context_wipe_partition(Context *context, Partition *p) { |
3939 | int r; | |
3940 | ||
3941 | assert(context); | |
3942 | assert(p); | |
3943 | assert(!PARTITION_EXISTS(p)); /* Safety check: never wipe existing partitions */ | |
3944 | ||
3945 | assert(p->offset != UINT64_MAX); | |
3946 | assert(p->new_size != UINT64_MAX); | |
3947 | ||
3948 | r = context_wipe_range(context, p->offset, p->new_size); | |
3949 | if (r < 0) | |
3950 | return r; | |
3951 | ||
3952 | log_info("Successfully wiped file system signatures from future partition %" PRIu64 ".", p->partno); | |
3953 | return 0; | |
3954 | } | |
3955 | ||
3956 | static int context_discard_range( | |
3957 | Context *context, | |
3958 | uint64_t offset, | |
3959 | uint64_t size) { | |
3960 | ||
e594a3b1 LP |
3961 | struct stat st; |
3962 | int fd; | |
3963 | ||
3964 | assert(context); | |
3965 | assert(offset != UINT64_MAX); | |
3966 | assert(size != UINT64_MAX); | |
3967 | ||
3968 | if (size <= 0) | |
3969 | return 0; | |
3970 | ||
a26f4a49 | 3971 | assert_se((fd = fdisk_get_devfd(context->fdisk_context)) >= 0); |
e594a3b1 LP |
3972 | |
3973 | if (fstat(fd, &st) < 0) | |
3974 | return -errno; | |
3975 | ||
3976 | if (S_ISREG(st.st_mode)) { | |
3977 | if (fallocate(fd, FALLOC_FL_PUNCH_HOLE|FALLOC_FL_KEEP_SIZE, offset, size) < 0) { | |
3978 | if (ERRNO_IS_NOT_SUPPORTED(errno)) | |
3979 | return -EOPNOTSUPP; | |
3980 | ||
3981 | return -errno; | |
3982 | } | |
3983 | ||
3984 | return 1; | |
3985 | } | |
3986 | ||
3987 | if (S_ISBLK(st.st_mode)) { | |
3988 | uint64_t range[2], end; | |
3989 | ||
994b3031 | 3990 | range[0] = round_up_size(offset, context->sector_size); |
e594a3b1 | 3991 | |
55d38014 LP |
3992 | if (offset > UINT64_MAX - size) |
3993 | return -ERANGE; | |
3994 | ||
e594a3b1 LP |
3995 | end = offset + size; |
3996 | if (end <= range[0]) | |
3997 | return 0; | |
3998 | ||
994b3031 | 3999 | range[1] = round_down_size(end - range[0], context->sector_size); |
e594a3b1 LP |
4000 | if (range[1] <= 0) |
4001 | return 0; | |
4002 | ||
4003 | if (ioctl(fd, BLKDISCARD, range) < 0) { | |
4004 | if (ERRNO_IS_NOT_SUPPORTED(errno)) | |
4005 | return -EOPNOTSUPP; | |
4006 | ||
4007 | return -errno; | |
4008 | } | |
4009 | ||
4010 | return 1; | |
4011 | } | |
4012 | ||
4013 | return -EOPNOTSUPP; | |
4014 | } | |
4015 | ||
4016 | static int context_discard_partition(Context *context, Partition *p) { | |
4017 | int r; | |
4018 | ||
4019 | assert(context); | |
4020 | assert(p); | |
4021 | ||
4022 | assert(p->offset != UINT64_MAX); | |
4023 | assert(p->new_size != UINT64_MAX); | |
4024 | assert(!PARTITION_EXISTS(p)); /* Safety check: never discard existing partitions */ | |
4025 | ||
4026 | if (!arg_discard) | |
4027 | return 0; | |
4028 | ||
4029 | r = context_discard_range(context, p->offset, p->new_size); | |
4030 | if (r == -EOPNOTSUPP) { | |
5b5109e2 | 4031 | log_info("Storage does not support discard, not discarding data in future partition %" PRIu64 ".", p->partno); |
e594a3b1 LP |
4032 | return 0; |
4033 | } | |
22163eb5 LP |
4034 | if (r == -EBUSY) { |
4035 | /* Let's handle this gracefully: https://bugzilla.kernel.org/show_bug.cgi?id=211167 */ | |
4036 | log_info("Block device is busy, not discarding partition %" PRIu64 " because it probably is mounted.", p->partno); | |
4037 | return 0; | |
4038 | } | |
e594a3b1 LP |
4039 | if (r == 0) { |
4040 | log_info("Partition %" PRIu64 " too short for discard, skipping.", p->partno); | |
4041 | return 0; | |
4042 | } | |
4043 | if (r < 0) | |
5b5109e2 | 4044 | return log_error_errno(r, "Failed to discard data for future partition %" PRIu64 ".", p->partno); |
e594a3b1 | 4045 | |
5b5109e2 | 4046 | log_info("Successfully discarded data from future partition %" PRIu64 ".", p->partno); |
e594a3b1 LP |
4047 | return 1; |
4048 | } | |
4049 | ||
4050 | static int context_discard_gap_after(Context *context, Partition *p) { | |
4051 | uint64_t gap, next = UINT64_MAX; | |
e594a3b1 LP |
4052 | int r; |
4053 | ||
4054 | assert(context); | |
4055 | assert(!p || (p->offset != UINT64_MAX && p->new_size != UINT64_MAX)); | |
4056 | ||
5113436b AF |
4057 | if (!arg_discard) |
4058 | return 0; | |
4059 | ||
e594a3b1 LP |
4060 | if (p) |
4061 | gap = p->offset + p->new_size; | |
4062 | else | |
771805eb SS |
4063 | /* The context start gets rounded up to grain_size, however |
4064 | * existing partitions may be before that so ensure the gap | |
4065 | * starts at the first actually usable lba | |
4066 | */ | |
4067 | gap = fdisk_get_first_lba(context->fdisk_context) * context->sector_size; | |
e594a3b1 LP |
4068 | |
4069 | LIST_FOREACH(partitions, q, context->partitions) { | |
4070 | if (q->dropped) | |
4071 | continue; | |
4072 | ||
4073 | assert(q->offset != UINT64_MAX); | |
4074 | assert(q->new_size != UINT64_MAX); | |
4075 | ||
4076 | if (q->offset < gap) | |
4077 | continue; | |
4078 | ||
4079 | if (next == UINT64_MAX || q->offset < next) | |
4080 | next = q->offset; | |
4081 | } | |
4082 | ||
4083 | if (next == UINT64_MAX) { | |
771805eb | 4084 | next = (fdisk_get_last_lba(context->fdisk_context) + 1) * context->sector_size; |
e594a3b1 LP |
4085 | if (gap > next) |
4086 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Partition end beyond disk end."); | |
4087 | } | |
4088 | ||
4089 | assert(next >= gap); | |
4090 | r = context_discard_range(context, gap, next - gap); | |
4091 | if (r == -EOPNOTSUPP) { | |
4092 | if (p) | |
5b5109e2 | 4093 | log_info("Storage does not support discard, not discarding gap after partition %" PRIu64 ".", p->partno); |
e594a3b1 | 4094 | else |
5b5109e2 | 4095 | log_info("Storage does not support discard, not discarding gap at beginning of disk."); |
e594a3b1 LP |
4096 | return 0; |
4097 | } | |
4098 | if (r == 0) /* Too short */ | |
4099 | return 0; | |
4100 | if (r < 0) { | |
4101 | if (p) | |
4102 | return log_error_errno(r, "Failed to discard gap after partition %" PRIu64 ".", p->partno); | |
4103 | else | |
4104 | return log_error_errno(r, "Failed to discard gap at beginning of disk."); | |
4105 | } | |
4106 | ||
4107 | if (p) | |
4108 | log_info("Successfully discarded gap after partition %" PRIu64 ".", p->partno); | |
4109 | else | |
4110 | log_info("Successfully discarded gap at beginning of disk."); | |
4111 | ||
4112 | return 0; | |
4113 | } | |
4114 | ||
cc751c75 | 4115 | static int context_wipe_and_discard(Context *context) { |
e594a3b1 LP |
4116 | int r; |
4117 | ||
4118 | assert(context); | |
4119 | ||
19c58989 LP |
4120 | if (arg_empty == EMPTY_CREATE) /* If we just created the image, no need to wipe */ |
4121 | return 0; | |
4122 | ||
e594a3b1 LP |
4123 | /* Wipe and discard the contents of all partitions we are about to create. We skip the discarding if |
4124 | * we were supposed to start from scratch anyway, as in that case we just discard the whole block | |
4125 | * device in one go early on. */ | |
4126 | ||
4127 | LIST_FOREACH(partitions, p, context->partitions) { | |
4128 | ||
4129 | if (!p->allocated_to_area) | |
4130 | continue; | |
4131 | ||
c74d50ff | 4132 | if (partition_type_defer(&p->type)) |
81d1098b DDM |
4133 | continue; |
4134 | ||
e594a3b1 LP |
4135 | r = context_wipe_partition(context, p); |
4136 | if (r < 0) | |
4137 | return r; | |
4138 | ||
cc751c75 | 4139 | if (!context->from_scratch) { |
f0cb1b95 LP |
4140 | r = context_discard_partition(context, p); |
4141 | if (r < 0) | |
4142 | return r; | |
4143 | ||
e594a3b1 LP |
4144 | r = context_discard_gap_after(context, p); |
4145 | if (r < 0) | |
4146 | return r; | |
4147 | } | |
4148 | } | |
4149 | ||
cc751c75 | 4150 | if (!context->from_scratch) { |
e594a3b1 LP |
4151 | r = context_discard_gap_after(context, NULL); |
4152 | if (r < 0) | |
4153 | return r; | |
4154 | } | |
4155 | ||
4156 | return 0; | |
4157 | } | |
4158 | ||
a09ae915 DDM |
4159 | typedef struct DecryptedPartitionTarget { |
4160 | int fd; | |
fd9b68d9 | 4161 | char *dm_name; |
a09ae915 DDM |
4162 | char *volume; |
4163 | struct crypt_device *device; | |
4164 | } DecryptedPartitionTarget; | |
4165 | ||
4166 | static DecryptedPartitionTarget* decrypted_partition_target_free(DecryptedPartitionTarget *t) { | |
465261bf | 4167 | #if HAVE_LIBCRYPTSETUP |
a09ae915 DDM |
4168 | int r; |
4169 | ||
4170 | if (!t) | |
4171 | return NULL; | |
4172 | ||
a09ae915 DDM |
4173 | safe_close(t->fd); |
4174 | ||
fd9b68d9 DDM |
4175 | /* udev or so might access out block device in the background while we are done. Let's hence |
4176 | * force detach the volume. We sync'ed before, hence this should be safe. */ | |
4177 | r = sym_crypt_deactivate_by_name(t->device, t->dm_name, CRYPT_DEACTIVATE_FORCE); | |
4178 | if (r < 0) | |
4179 | log_warning_errno(r, "Failed to deactivate LUKS device, ignoring: %m"); | |
a09ae915 DDM |
4180 | |
4181 | sym_crypt_free(t->device); | |
fd9b68d9 | 4182 | free(t->dm_name); |
a09ae915 DDM |
4183 | free(t->volume); |
4184 | free(t); | |
4185 | #endif | |
4186 | return NULL; | |
4187 | } | |
4188 | ||
a64769d6 DDM |
4189 | typedef struct { |
4190 | LoopDevice *loop; | |
4191 | int fd; | |
4192 | char *path; | |
4193 | int whole_fd; | |
a09ae915 | 4194 | DecryptedPartitionTarget *decrypted; |
a64769d6 DDM |
4195 | } PartitionTarget; |
4196 | ||
4197 | static int partition_target_fd(PartitionTarget *t) { | |
4198 | assert(t); | |
4199 | assert(t->loop || t->fd >= 0 || t->whole_fd >= 0); | |
a09ae915 DDM |
4200 | |
4201 | if (t->decrypted) | |
4202 | return t->decrypted->fd; | |
4203 | ||
4204 | if (t->loop) | |
4205 | return t->loop->fd; | |
4206 | ||
4207 | if (t->fd >= 0) | |
4208 | return t->fd; | |
4209 | ||
4210 | return t->whole_fd; | |
a64769d6 DDM |
4211 | } |
4212 | ||
4213 | static const char* partition_target_path(PartitionTarget *t) { | |
4214 | assert(t); | |
4215 | assert(t->loop || t->path); | |
a09ae915 DDM |
4216 | |
4217 | if (t->decrypted) | |
4218 | return t->decrypted->volume; | |
4219 | ||
4220 | if (t->loop) | |
4221 | return t->loop->node; | |
4222 | ||
4223 | return t->path; | |
a64769d6 DDM |
4224 | } |
4225 | ||
52031044 | 4226 | static PartitionTarget* partition_target_free(PartitionTarget *t) { |
a64769d6 DDM |
4227 | if (!t) |
4228 | return NULL; | |
4229 | ||
a09ae915 | 4230 | decrypted_partition_target_free(t->decrypted); |
a64769d6 DDM |
4231 | loop_device_unref(t->loop); |
4232 | safe_close(t->fd); | |
4233 | unlink_and_free(t->path); | |
4234 | ||
4235 | return mfree(t); | |
4236 | } | |
4237 | ||
4238 | DEFINE_TRIVIAL_CLEANUP_FUNC(PartitionTarget*, partition_target_free); | |
4239 | ||
b9c0b6c0 | 4240 | static int prepare_temporary_file(Context *context, PartitionTarget *t, uint64_t size) { |
d3201eb4 | 4241 | _cleanup_(unlink_and_freep) char *temp = NULL; |
254d1313 | 4242 | _cleanup_close_ int fd = -EBADF; |
d3201eb4 | 4243 | const char *vt; |
b9c0b6c0 | 4244 | unsigned attrs = 0; |
d3201eb4 DDM |
4245 | int r; |
4246 | ||
b9c0b6c0 | 4247 | assert(context); |
d3201eb4 DDM |
4248 | assert(t); |
4249 | ||
4250 | r = var_tmp_dir(&vt); | |
4251 | if (r < 0) | |
4252 | return log_error_errno(r, "Could not determine temporary directory: %m"); | |
4253 | ||
4254 | temp = path_join(vt, "repart-XXXXXX"); | |
4255 | if (!temp) | |
4256 | return log_oom(); | |
4257 | ||
4258 | fd = mkostemp_safe(temp); | |
4259 | if (fd < 0) | |
4260 | return log_error_errno(fd, "Failed to create temporary file: %m"); | |
4261 | ||
b9c0b6c0 DDM |
4262 | r = read_attr_fd(fdisk_get_devfd(context->fdisk_context), &attrs); |
4263 | if (r < 0 && !ERRNO_IS_NEG_NOT_SUPPORTED(r)) | |
4264 | return log_error_errno(r, "Failed to read file attributes of %s: %m", arg_node); | |
4265 | ||
4266 | if (FLAGS_SET(attrs, FS_NOCOW_FL)) { | |
4267 | r = chattr_fd(fd, FS_NOCOW_FL, FS_NOCOW_FL, NULL); | |
4268 | if (r < 0 && !ERRNO_IS_NOT_SUPPORTED(r)) | |
4269 | return log_error_errno(r, "Failed to disable copy-on-write on %s: %m", temp); | |
4270 | } | |
4271 | ||
d3201eb4 DDM |
4272 | if (ftruncate(fd, size) < 0) |
4273 | return log_error_errno(errno, "Failed to truncate temporary file to %s: %m", | |
9f08d7f7 | 4274 | FORMAT_BYTES(size)); |
d3201eb4 DDM |
4275 | |
4276 | t->fd = TAKE_FD(fd); | |
4277 | t->path = TAKE_PTR(temp); | |
4278 | ||
4279 | return 0; | |
4280 | } | |
4281 | ||
3799fa80 DDM |
4282 | static bool loop_device_error_is_fatal(const Partition *p, int r) { |
4283 | assert(p); | |
4d9ccdc9 | 4284 | return arg_offline == 0 || (r != -ENOENT && !ERRNO_IS_PRIVILEGE(r)) || !ordered_hashmap_isempty(p->subvolumes) || p->default_subvolume; |
3799fa80 DDM |
4285 | } |
4286 | ||
a64769d6 DDM |
4287 | static int partition_target_prepare( |
4288 | Context *context, | |
4289 | Partition *p, | |
4290 | uint64_t size, | |
4291 | bool need_path, | |
4292 | PartitionTarget **ret) { | |
4293 | ||
4294 | _cleanup_(partition_target_freep) PartitionTarget *t = NULL; | |
d3201eb4 DDM |
4295 | _cleanup_(loop_device_unrefp) LoopDevice *d = NULL; |
4296 | int whole_fd, r; | |
a64769d6 DDM |
4297 | |
4298 | assert(context); | |
4299 | assert(p); | |
4300 | assert(ret); | |
4301 | ||
4302 | assert_se((whole_fd = fdisk_get_devfd(context->fdisk_context)) >= 0); | |
4303 | ||
6b1ea55e | 4304 | t = new(PartitionTarget, 1); |
a64769d6 DDM |
4305 | if (!t) |
4306 | return log_oom(); | |
6b1ea55e | 4307 | *t = (PartitionTarget) { |
254d1313 ZJS |
4308 | .fd = -EBADF, |
4309 | .whole_fd = -EBADF, | |
6b1ea55e | 4310 | }; |
a64769d6 | 4311 | |
d3201eb4 | 4312 | if (!need_path) { |
86cbbc6d | 4313 | if (lseek(whole_fd, p->offset, SEEK_SET) < 0) |
d3201eb4 | 4314 | return log_error_errno(errno, "Failed to seek to partition offset: %m"); |
a64769d6 | 4315 | |
d3201eb4 DDM |
4316 | t->whole_fd = whole_fd; |
4317 | *ret = TAKE_PTR(t); | |
4318 | return 0; | |
4319 | } | |
a64769d6 | 4320 | |
d3201eb4 DDM |
4321 | /* Loopback block devices are not only useful to turn regular files into block devices, but |
4322 | * also to cut out sections of block devices into new block devices. */ | |
a64769d6 | 4323 | |
fc10b158 | 4324 | if (arg_offline <= 0) { |
66a8c74c | 4325 | r = loop_device_make(whole_fd, O_RDWR, p->offset, size, context->sector_size, 0, LOCK_EX, &d); |
3799fa80 | 4326 | if (r < 0 && loop_device_error_is_fatal(p, r)) |
fc10b158 DDM |
4327 | return log_error_errno(r, "Failed to make loopback device of future partition %" PRIu64 ": %m", p->partno); |
4328 | if (r >= 0) { | |
4329 | t->loop = TAKE_PTR(d); | |
4330 | *ret = TAKE_PTR(t); | |
4331 | return 0; | |
4332 | } | |
4333 | ||
4334 | log_debug_errno(r, "No access to loop devices, falling back to a regular file"); | |
d3201eb4 | 4335 | } |
a64769d6 | 4336 | |
d3201eb4 DDM |
4337 | /* If we can't allocate a loop device, let's write to a regular file that we copy into the final |
4338 | * image so we can run in containers and without needing root privileges. On filesystems with | |
4339 | * reflinking support, we can take advantage of this and just reflink the result into the image. | |
4340 | */ | |
a64769d6 | 4341 | |
b9c0b6c0 | 4342 | r = prepare_temporary_file(context, t, size); |
d3201eb4 DDM |
4343 | if (r < 0) |
4344 | return r; | |
a64769d6 DDM |
4345 | |
4346 | *ret = TAKE_PTR(t); | |
4347 | ||
4348 | return 0; | |
4349 | } | |
4350 | ||
4351 | static int partition_target_grow(PartitionTarget *t, uint64_t size) { | |
4352 | int r; | |
4353 | ||
4354 | assert(t); | |
a09ae915 | 4355 | assert(!t->decrypted); |
a64769d6 DDM |
4356 | |
4357 | if (t->loop) { | |
4358 | r = loop_device_refresh_size(t->loop, UINT64_MAX, size); | |
4359 | if (r < 0) | |
4360 | return log_error_errno(r, "Failed to refresh loopback device size: %m"); | |
4361 | } else if (t->fd >= 0) { | |
4362 | if (ftruncate(t->fd, size) < 0) | |
4363 | return log_error_errno(errno, "Failed to grow '%s' to %s by truncation: %m", | |
4364 | t->path, FORMAT_BYTES(size)); | |
4365 | } | |
4366 | ||
4367 | return 0; | |
4368 | } | |
4369 | ||
4370 | static int partition_target_sync(Context *context, Partition *p, PartitionTarget *t) { | |
4371 | int whole_fd, r; | |
4372 | ||
4373 | assert(context); | |
4374 | assert(p); | |
4375 | assert(t); | |
4376 | ||
4377 | assert_se((whole_fd = fdisk_get_devfd(context->fdisk_context)) >= 0); | |
4378 | ||
f3b8e81f DDM |
4379 | log_info("Syncing future partition %"PRIu64" contents to disk.", p->partno); |
4380 | ||
a09ae915 DDM |
4381 | if (t->decrypted && fsync(t->decrypted->fd) < 0) |
4382 | return log_error_errno(errno, "Failed to sync changes to '%s': %m", t->decrypted->volume); | |
4383 | ||
a64769d6 DDM |
4384 | if (t->loop) { |
4385 | r = loop_device_sync(t->loop); | |
4386 | if (r < 0) | |
4387 | return log_error_errno(r, "Failed to sync loopback device: %m"); | |
4388 | } else if (t->fd >= 0) { | |
e21be797 DDM |
4389 | struct stat st; |
4390 | ||
86cbbc6d | 4391 | if (lseek(whole_fd, p->offset, SEEK_SET) < 0) |
a64769d6 DDM |
4392 | return log_error_errno(errno, "Failed to seek to partition offset: %m"); |
4393 | ||
86cbbc6d | 4394 | if (lseek(t->fd, 0, SEEK_SET) < 0) |
6eccec00 DDM |
4395 | return log_error_errno(errno, "Failed to seek to start of temporary file: %m"); |
4396 | ||
e21be797 DDM |
4397 | if (fstat(t->fd, &st) < 0) |
4398 | return log_error_errno(errno, "Failed to stat temporary file: %m"); | |
4399 | ||
4400 | if (st.st_size > (off_t) p->new_size) | |
4401 | return log_error_errno(SYNTHETIC_ERRNO(ENOSPC), | |
4e494e6a | 4402 | "Partition %" PRIu64 "'s contents (%s) don't fit in the partition (%s).", |
e21be797 DDM |
4403 | p->partno, FORMAT_BYTES(st.st_size), FORMAT_BYTES(p->new_size)); |
4404 | ||
a64769d6 DDM |
4405 | r = copy_bytes(t->fd, whole_fd, UINT64_MAX, COPY_REFLINK|COPY_HOLES|COPY_FSYNC); |
4406 | if (r < 0) | |
4407 | return log_error_errno(r, "Failed to copy bytes to partition: %m"); | |
4408 | } else { | |
4409 | if (fsync(t->whole_fd) < 0) | |
4410 | return log_error_errno(errno, "Failed to sync changes: %m"); | |
4411 | } | |
4412 | ||
4413 | return 0; | |
4414 | } | |
4415 | ||
a09ae915 | 4416 | static int partition_encrypt(Context *context, Partition *p, PartitionTarget *target, bool offline) { |
b99b2941 | 4417 | #if HAVE_LIBCRYPTSETUP && HAVE_CRYPT_SET_DATA_OFFSET && HAVE_CRYPT_REENCRYPT_INIT_BY_PASSPHRASE && (HAVE_CRYPT_REENCRYPT_RUN || HAVE_CRYPT_REENCRYPT) |
a09ae915 | 4418 | const char *node = partition_target_path(target); |
48a09a8f | 4419 | struct crypt_params_luks2 luks_params = { |
922576e4 | 4420 | .label = strempty(ASSERT_PTR(p)->new_label), |
93f125a6 | 4421 | .sector_size = ASSERT_PTR(context)->fs_sector_size, |
a09ae915 | 4422 | .data_device = offline ? node : NULL, |
48a09a8f DDM |
4423 | }; |
4424 | struct crypt_params_reencrypt reencrypt_params = { | |
4425 | .mode = CRYPT_REENCRYPT_ENCRYPT, | |
4426 | .direction = CRYPT_REENCRYPT_BACKWARD, | |
4427 | .resilience = "datashift", | |
4428 | .data_shift = LUKS2_METADATA_SIZE / 512, | |
4429 | .luks2 = &luks_params, | |
4430 | .flags = CRYPT_REENCRYPT_INITIALIZE_ONLY|CRYPT_REENCRYPT_MOVE_FIRST_SEGMENT, | |
4431 | }; | |
0d12936d | 4432 | _cleanup_(sym_crypt_freep) struct crypt_device *cd = NULL; |
1d877271 | 4433 | #if HAVE_TPM2 |
48a09a8f | 4434 | _cleanup_(erase_and_freep) char *base64_encoded = NULL; |
1d877271 | 4435 | #endif |
48a09a8f | 4436 | _cleanup_fclose_ FILE *h = NULL; |
a09ae915 | 4437 | _cleanup_free_ char *hp = NULL, *vol = NULL, *dm_name = NULL; |
48a09a8f DDM |
4438 | const char *passphrase = NULL; |
4439 | size_t passphrase_size = 0; | |
0b75744d | 4440 | const char *vt; |
b9df3536 LP |
4441 | int r; |
4442 | ||
994b3031 | 4443 | assert(context); |
b9df3536 | 4444 | assert(p); |
889914ef LP |
4445 | assert(p->encrypt != ENCRYPT_OFF); |
4446 | ||
0d12936d LP |
4447 | r = dlopen_cryptsetup(); |
4448 | if (r < 0) | |
4449 | return log_error_errno(r, "libcryptsetup not found, cannot encrypt: %m"); | |
4450 | ||
b9df3536 LP |
4451 | log_info("Encrypting future partition %" PRIu64 "...", p->partno); |
4452 | ||
a09ae915 DDM |
4453 | if (offline) { |
4454 | r = var_tmp_dir(&vt); | |
4455 | if (r < 0) | |
4456 | return log_error_errno(r, "Failed to determine temporary files directory: %m"); | |
0b75744d | 4457 | |
a09ae915 DDM |
4458 | r = fopen_temporary_child(vt, &h, &hp); |
4459 | if (r < 0) | |
4460 | return log_error_errno(r, "Failed to create temporary LUKS header file: %m"); | |
48a09a8f | 4461 | |
a09ae915 DDM |
4462 | /* Weird cryptsetup requirement which requires the header file to be the size of at least one |
4463 | * sector. */ | |
9f08d7f7 MY |
4464 | if (ftruncate(fileno(h), luks_params.sector_size) < 0) |
4465 | return log_error_errno(errno, "Failed to grow temporary LUKS header file: %m"); | |
a09ae915 DDM |
4466 | } else { |
4467 | if (asprintf(&dm_name, "luks-repart-%08" PRIx64, random_u64()) < 0) | |
4468 | return log_oom(); | |
4469 | ||
4470 | vol = path_join("/dev/mapper/", dm_name); | |
4471 | if (!vol) | |
4472 | return log_oom(); | |
4473 | } | |
48a09a8f | 4474 | |
a09ae915 | 4475 | r = sym_crypt_init(&cd, offline ? hp : node); |
48a09a8f DDM |
4476 | if (r < 0) |
4477 | return log_error_errno(r, "Failed to allocate libcryptsetup context for %s: %m", hp); | |
b9df3536 LP |
4478 | |
4479 | cryptsetup_enable_logging(cd); | |
4480 | ||
a09ae915 DDM |
4481 | if (offline) { |
4482 | /* Disable kernel keyring usage by libcryptsetup as a workaround for | |
4483 | * https://gitlab.com/cryptsetup/cryptsetup/-/merge_requests/273. This makes sure that we can | |
4484 | * do offline encryption even when repart is running in a container. */ | |
4485 | r = sym_crypt_volume_key_keyring(cd, false); | |
4486 | if (r < 0) | |
4487 | return log_error_errno(r, "Failed to disable kernel keyring: %m"); | |
48a09a8f | 4488 | |
a09ae915 DDM |
4489 | r = sym_crypt_metadata_locking(cd, false); |
4490 | if (r < 0) | |
4491 | return log_error_errno(r, "Failed to disable metadata locking: %m"); | |
48a09a8f | 4492 | |
a09ae915 DDM |
4493 | r = sym_crypt_set_data_offset(cd, LUKS2_METADATA_SIZE / 512); |
4494 | if (r < 0) | |
4495 | return log_error_errno(r, "Failed to set data offset: %m"); | |
4496 | } | |
48a09a8f | 4497 | |
9f08d7f7 MY |
4498 | r = sym_crypt_format( |
4499 | cd, | |
4500 | CRYPT_LUKS2, | |
4501 | "aes", | |
4502 | "xts-plain64", | |
4503 | SD_ID128_TO_UUID_STRING(p->luks_uuid), | |
4504 | NULL, | |
4505 | VOLUME_KEY_SIZE, | |
4506 | &luks_params); | |
b9df3536 LP |
4507 | if (r < 0) |
4508 | return log_error_errno(r, "Failed to LUKS2 format future partition: %m"); | |
4509 | ||
889914ef LP |
4510 | if (IN_SET(p->encrypt, ENCRYPT_KEY_FILE, ENCRYPT_KEY_FILE_TPM2)) { |
4511 | r = sym_crypt_keyslot_add_by_volume_key( | |
4512 | cd, | |
4513 | CRYPT_ANY_SLOT, | |
98e0456e DDM |
4514 | NULL, |
4515 | VOLUME_KEY_SIZE, | |
889914ef LP |
4516 | strempty(arg_key), |
4517 | arg_key_size); | |
4518 | if (r < 0) | |
4519 | return log_error_errno(r, "Failed to add LUKS2 key: %m"); | |
48a09a8f DDM |
4520 | |
4521 | passphrase = strempty(arg_key); | |
4522 | passphrase_size = arg_key_size; | |
889914ef LP |
4523 | } |
4524 | ||
4525 | if (IN_SET(p->encrypt, ENCRYPT_TPM2, ENCRYPT_KEY_FILE_TPM2)) { | |
4526 | #if HAVE_TPM2 | |
8e658767 | 4527 | _cleanup_(iovec_done) struct iovec pubkey = {}, srk = {}; |
8d042bc4 | 4528 | _cleanup_(iovec_done_erase) struct iovec secret = {}; |
309a747f | 4529 | _cleanup_(sd_json_variant_unrefp) sd_json_variant *v = NULL; |
5e476b85 | 4530 | ssize_t base64_encoded_size; |
889914ef | 4531 | int keyslot; |
59c8afbc | 4532 | TPM2Flags flags = 0; |
889914ef | 4533 | |
02ef97cd | 4534 | if (arg_tpm2_public_key_pcr_mask != 0) { |
8d042bc4 | 4535 | r = tpm2_load_pcr_public_key(arg_tpm2_public_key, &pubkey.iov_base, &pubkey.iov_len); |
02ef97cd LP |
4536 | if (r < 0) { |
4537 | if (arg_tpm2_public_key || r != -ENOENT) | |
2e9f6072 | 4538 | return log_error_errno(r, "Failed to read TPM PCR public key: %m"); |
02ef97cd LP |
4539 | |
4540 | log_debug_errno(r, "Failed to read TPM2 PCR public key, proceeding without: %m"); | |
4541 | arg_tpm2_public_key_pcr_mask = 0; | |
4542 | } | |
4543 | } | |
4544 | ||
9e437994 | 4545 | TPM2B_PUBLIC public; |
8d042bc4 LP |
4546 | if (iovec_is_set(&pubkey)) { |
4547 | r = tpm2_tpm2b_public_from_pem(pubkey.iov_base, pubkey.iov_len, &public); | |
9e437994 DS |
4548 | if (r < 0) |
4549 | return log_error_errno(r, "Could not convert public key to TPM2B_PUBLIC: %m"); | |
4550 | } | |
4551 | ||
78fdf0f6 LP |
4552 | _cleanup_(tpm2_pcrlock_policy_done) Tpm2PCRLockPolicy pcrlock_policy = {}; |
4553 | if (arg_tpm2_pcrlock) { | |
4554 | r = tpm2_pcrlock_policy_load(arg_tpm2_pcrlock, &pcrlock_policy); | |
4555 | if (r < 0) | |
4556 | return r; | |
4557 | ||
4558 | flags |= TPM2_FLAGS_USE_PCRLOCK; | |
4559 | } | |
4560 | ||
4561 | _cleanup_(tpm2_context_unrefp) Tpm2Context *tpm2_context = NULL; | |
4562 | TPM2B_PUBLIC device_key_public = {}; | |
4563 | if (arg_tpm2_device_key) { | |
4564 | r = tpm2_load_public_key_file(arg_tpm2_device_key, &device_key_public); | |
4565 | if (r < 0) | |
4566 | return r; | |
4567 | ||
4568 | if (!tpm2_pcr_values_has_all_values(arg_tpm2_hash_pcr_values, arg_tpm2_n_hash_pcr_values)) | |
4569 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
4570 | "Must provide all PCR values when using TPM2 device key."); | |
4571 | } else { | |
21a3bc6b | 4572 | r = tpm2_context_new_or_warn(arg_tpm2_device, &tpm2_context); |
78fdf0f6 | 4573 | if (r < 0) |
21a3bc6b | 4574 | return r; |
78fdf0f6 LP |
4575 | |
4576 | if (!tpm2_pcr_values_has_all_values(arg_tpm2_hash_pcr_values, arg_tpm2_n_hash_pcr_values)) { | |
4577 | r = tpm2_pcr_read_missing_values(tpm2_context, arg_tpm2_hash_pcr_values, arg_tpm2_n_hash_pcr_values); | |
4578 | if (r < 0) | |
4579 | return log_error_errno(r, "Could not read pcr values: %m"); | |
4580 | } | |
4581 | } | |
9e437994 DS |
4582 | |
4583 | uint16_t hash_pcr_bank = 0; | |
4584 | uint32_t hash_pcr_mask = 0; | |
4585 | if (arg_tpm2_n_hash_pcr_values > 0) { | |
4586 | size_t hash_count; | |
4587 | r = tpm2_pcr_values_hash_count(arg_tpm2_hash_pcr_values, arg_tpm2_n_hash_pcr_values, &hash_count); | |
4588 | if (r < 0) | |
4589 | return log_error_errno(r, "Could not get hash count: %m"); | |
4590 | ||
4591 | if (hash_count > 1) | |
4592 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Multiple PCR banks selected."); | |
4593 | ||
4594 | hash_pcr_bank = arg_tpm2_hash_pcr_values[0].hash; | |
4595 | r = tpm2_pcr_values_to_mask(arg_tpm2_hash_pcr_values, arg_tpm2_n_hash_pcr_values, hash_pcr_bank, &hash_pcr_mask); | |
4596 | if (r < 0) | |
4597 | return log_error_errno(r, "Could not get hash mask: %m"); | |
4598 | } | |
4599 | ||
8e658767 LP |
4600 | TPM2B_DIGEST policy_hash[2] = { |
4601 | TPM2B_DIGEST_MAKE(NULL, TPM2_SHA256_DIGEST_SIZE), | |
4602 | TPM2B_DIGEST_MAKE(NULL, TPM2_SHA256_DIGEST_SIZE), | |
4603 | }; | |
4604 | size_t n_policy_hash = 1; | |
4605 | ||
4606 | /* If both PCR public key unlock and pcrlock unlock is selected, then shard the encryption key. */ | |
a4342701 LP |
4607 | r = tpm2_calculate_sealing_policy( |
4608 | arg_tpm2_hash_pcr_values, | |
4609 | arg_tpm2_n_hash_pcr_values, | |
8d042bc4 | 4610 | iovec_is_set(&pubkey) ? &public : NULL, |
a4342701 | 4611 | /* use_pin= */ false, |
8e658767 LP |
4612 | arg_tpm2_pcrlock && !iovec_is_set(&pubkey) ? &pcrlock_policy : NULL, |
4613 | policy_hash + 0); | |
9e437994 | 4614 | if (r < 0) |
8e658767 LP |
4615 | return log_error_errno(r, "Could not calculate sealing policy digest for shard 0: %m"); |
4616 | ||
4617 | if (arg_tpm2_pcrlock && iovec_is_set(&pubkey)) { | |
4618 | r = tpm2_calculate_sealing_policy( | |
4619 | arg_tpm2_hash_pcr_values, | |
4620 | arg_tpm2_n_hash_pcr_values, | |
4621 | /* pubkey= */ NULL, /* Turn this one off for the 2nd shard */ | |
4622 | /* use_pin= */ false, | |
4623 | &pcrlock_policy, /* But turn this one on */ | |
4624 | policy_hash + 1); | |
4625 | if (r < 0) | |
4626 | return log_error_errno(r, "Could not calculate sealing policy digest for shard 1: %m"); | |
4627 | ||
4628 | n_policy_hash++; | |
4629 | } | |
4630 | ||
4631 | struct iovec *blobs = NULL; | |
4632 | size_t n_blobs = 0; | |
4633 | CLEANUP_ARRAY(blobs, n_blobs, iovec_array_free); | |
4634 | ||
4635 | if (arg_tpm2_device_key) { | |
4636 | if (n_policy_hash > 1) | |
4637 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
4638 | "Combined signed PCR policies and pcrlock policies cannot be calculated offline, currently."); | |
4639 | ||
4640 | blobs = new0(struct iovec, 1); | |
4641 | if (!blobs) | |
4642 | return log_oom(); | |
4643 | ||
4644 | n_blobs = 1; | |
9e437994 | 4645 | |
78fdf0f6 LP |
4646 | r = tpm2_calculate_seal( |
4647 | arg_tpm2_seal_key_handle, | |
4648 | &device_key_public, | |
4649 | /* attributes= */ NULL, | |
8d042bc4 | 4650 | /* secret= */ NULL, |
8e658767 | 4651 | policy_hash + 0, |
78fdf0f6 | 4652 | /* pin= */ NULL, |
8d042bc4 | 4653 | &secret, |
8e658767 | 4654 | blobs + 0, |
8d042bc4 | 4655 | &srk); |
8e658767 | 4656 | } else |
78fdf0f6 LP |
4657 | r = tpm2_seal(tpm2_context, |
4658 | arg_tpm2_seal_key_handle, | |
8e658767 LP |
4659 | policy_hash, |
4660 | n_policy_hash, | |
78fdf0f6 | 4661 | /* pin= */ NULL, |
8d042bc4 | 4662 | &secret, |
8e658767 LP |
4663 | &blobs, |
4664 | &n_blobs, | |
78fdf0f6 | 4665 | /* ret_primary_alg= */ NULL, |
8d042bc4 | 4666 | &srk); |
889914ef LP |
4667 | if (r < 0) |
4668 | return log_error_errno(r, "Failed to seal to TPM2: %m"); | |
4669 | ||
8d042bc4 | 4670 | base64_encoded_size = base64mem(secret.iov_base, secret.iov_len, &base64_encoded); |
5e476b85 LP |
4671 | if (base64_encoded_size < 0) |
4672 | return log_error_errno(base64_encoded_size, "Failed to base64 encode secret key: %m"); | |
889914ef LP |
4673 | |
4674 | r = cryptsetup_set_minimal_pbkdf(cd); | |
4675 | if (r < 0) | |
4676 | return log_error_errno(r, "Failed to set minimal PBKDF: %m"); | |
4677 | ||
4678 | keyslot = sym_crypt_keyslot_add_by_volume_key( | |
4679 | cd, | |
4680 | CRYPT_ANY_SLOT, | |
78fdf0f6 LP |
4681 | /* volume_key= */ NULL, |
4682 | /* volume_key_size= */ VOLUME_KEY_SIZE, | |
889914ef | 4683 | base64_encoded, |
5e476b85 | 4684 | base64_encoded_size); |
889914ef | 4685 | if (keyslot < 0) |
48a09a8f | 4686 | return log_error_errno(keyslot, "Failed to add new TPM2 key: %m"); |
889914ef | 4687 | |
8e658767 LP |
4688 | struct iovec policy_hash_as_iovec[2] = { |
4689 | IOVEC_MAKE(policy_hash[0].buffer, policy_hash[0].size), | |
4690 | IOVEC_MAKE(policy_hash[1].buffer, policy_hash[1].size), | |
4691 | }; | |
4692 | ||
f0f4fcae LP |
4693 | r = tpm2_make_luks2_json( |
4694 | keyslot, | |
9e437994 DS |
4695 | hash_pcr_mask, |
4696 | hash_pcr_bank, | |
8d042bc4 | 4697 | &pubkey, |
02ef97cd | 4698 | arg_tpm2_public_key_pcr_mask, |
9e437994 | 4699 | /* primary_alg= */ 0, |
8e658767 LP |
4700 | blobs, |
4701 | n_blobs, | |
4702 | policy_hash_as_iovec, | |
4703 | n_policy_hash, | |
8d042bc4 LP |
4704 | /* salt= */ NULL, /* no salt because tpm2_seal has no pin */ |
4705 | &srk, | |
d37c312b | 4706 | &pcrlock_policy.nv_handle, |
78fdf0f6 | 4707 | flags, |
f0f4fcae | 4708 | &v); |
889914ef LP |
4709 | if (r < 0) |
4710 | return log_error_errno(r, "Failed to prepare TPM2 JSON token object: %m"); | |
4711 | ||
4712 | r = cryptsetup_add_token_json(cd, v); | |
4713 | if (r < 0) | |
4714 | return log_error_errno(r, "Failed to add TPM2 JSON token to LUKS2 header: %m"); | |
48a09a8f DDM |
4715 | |
4716 | passphrase = base64_encoded; | |
4717 | passphrase_size = strlen(base64_encoded); | |
889914ef LP |
4718 | #else |
4719 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
4720 | "Support for TPM2 enrollment not enabled."); | |
4721 | #endif | |
4722 | } | |
b9df3536 | 4723 | |
a09ae915 DDM |
4724 | if (offline) { |
4725 | r = sym_crypt_reencrypt_init_by_passphrase( | |
4726 | cd, | |
4727 | NULL, | |
4728 | passphrase, | |
4729 | passphrase_size, | |
4730 | CRYPT_ANY_SLOT, | |
4731 | 0, | |
4732 | sym_crypt_get_cipher(cd), | |
4733 | sym_crypt_get_cipher_mode(cd), | |
4734 | &reencrypt_params); | |
4735 | if (r < 0) | |
4736 | return log_error_errno(r, "Failed to prepare for reencryption: %m"); | |
b9df3536 | 4737 | |
a09ae915 DDM |
4738 | /* crypt_reencrypt_init_by_passphrase() doesn't actually put the LUKS header at the front, we |
4739 | * have to do that ourselves. */ | |
b9df3536 | 4740 | |
a09ae915 DDM |
4741 | sym_crypt_free(cd); |
4742 | cd = NULL; | |
b9df3536 | 4743 | |
a09ae915 DDM |
4744 | r = sym_crypt_init(&cd, node); |
4745 | if (r < 0) | |
4746 | return log_error_errno(r, "Failed to allocate libcryptsetup context for %s: %m", node); | |
b9df3536 | 4747 | |
a09ae915 DDM |
4748 | r = sym_crypt_header_restore(cd, CRYPT_LUKS2, hp); |
4749 | if (r < 0) | |
4750 | return log_error_errno(r, "Failed to place new LUKS header at head of %s: %m", node); | |
b9df3536 | 4751 | |
a09ae915 | 4752 | reencrypt_params.flags &= ~CRYPT_REENCRYPT_INITIALIZE_ONLY; |
b9df3536 | 4753 | |
a09ae915 DDM |
4754 | r = sym_crypt_reencrypt_init_by_passphrase( |
4755 | cd, | |
4756 | NULL, | |
4757 | passphrase, | |
4758 | passphrase_size, | |
4759 | CRYPT_ANY_SLOT, | |
4760 | 0, | |
4761 | NULL, | |
4762 | NULL, | |
4763 | &reencrypt_params); | |
4764 | if (r < 0) | |
4765 | return log_error_errno(r, "Failed to load reencryption context: %m"); | |
b9df3536 | 4766 | |
b99b2941 DDM |
4767 | #if HAVE_CRYPT_REENCRYPT_RUN |
4768 | r = sym_crypt_reencrypt_run(cd, NULL, NULL); | |
4769 | #else | |
a09ae915 | 4770 | r = sym_crypt_reencrypt(cd, NULL); |
b99b2941 | 4771 | #endif |
a09ae915 DDM |
4772 | if (r < 0) |
4773 | return log_error_errno(r, "Failed to encrypt %s: %m", node); | |
4774 | } else { | |
4775 | _cleanup_free_ DecryptedPartitionTarget *t = NULL; | |
4776 | _cleanup_close_ int dev_fd = -1; | |
4777 | ||
4778 | r = sym_crypt_activate_by_volume_key( | |
4779 | cd, | |
4780 | dm_name, | |
4781 | NULL, | |
4782 | VOLUME_KEY_SIZE, | |
726fc7ae | 4783 | (arg_discard ? CRYPT_ACTIVATE_ALLOW_DISCARDS : 0) | CRYPT_ACTIVATE_PRIVATE); |
a09ae915 DDM |
4784 | if (r < 0) |
4785 | return log_error_errno(r, "Failed to activate LUKS superblock: %m"); | |
4786 | ||
4787 | dev_fd = open(vol, O_RDWR|O_CLOEXEC|O_NOCTTY); | |
4788 | if (dev_fd < 0) | |
4789 | return log_error_errno(errno, "Failed to open LUKS volume '%s': %m", vol); | |
4790 | ||
4791 | if (flock(dev_fd, LOCK_EX) < 0) | |
4792 | return log_error_errno(errno, "Failed to lock '%s': %m", vol); | |
4793 | ||
4794 | t = new(DecryptedPartitionTarget, 1); | |
4795 | if (!t) | |
4796 | return log_oom(); | |
4797 | ||
4798 | *t = (DecryptedPartitionTarget) { | |
4799 | .fd = TAKE_FD(dev_fd), | |
fd9b68d9 | 4800 | .dm_name = TAKE_PTR(dm_name), |
a09ae915 DDM |
4801 | .volume = TAKE_PTR(vol), |
4802 | .device = TAKE_PTR(cd), | |
4803 | }; | |
4804 | ||
4805 | target->decrypted = TAKE_PTR(t); | |
4806 | } | |
48a09a8f DDM |
4807 | |
4808 | log_info("Successfully encrypted future partition %" PRIu64 ".", p->partno); | |
b9df3536 | 4809 | |
3dd8ae5c | 4810 | return 0; |
48a09a8f DDM |
4811 | #else |
4812 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
4e494e6a | 4813 | "libcryptsetup is not supported or is missing required symbols, cannot encrypt."); |
3dd8ae5c | 4814 | #endif |
b9df3536 LP |
4815 | } |
4816 | ||
2b392d86 DDM |
4817 | static int partition_format_verity_hash( |
4818 | Context *context, | |
4819 | Partition *p, | |
13bde177 | 4820 | const char *node, |
2b392d86 DDM |
4821 | const char *data_node) { |
4822 | ||
4823 | #if HAVE_LIBCRYPTSETUP | |
4824 | Partition *dp; | |
a64769d6 | 4825 | _cleanup_(partition_target_freep) PartitionTarget *t = NULL; |
2b392d86 | 4826 | _cleanup_(sym_crypt_freep) struct crypt_device *cd = NULL; |
cf18d96f | 4827 | _cleanup_free_ char *hint = NULL; |
a64769d6 | 4828 | int r; |
2b392d86 DDM |
4829 | |
4830 | assert(context); | |
4831 | assert(p); | |
deeae10e | 4832 | assert(p->verity == VERITY_HASH); |
2b392d86 DDM |
4833 | assert(data_node); |
4834 | ||
4835 | if (p->dropped) | |
4836 | return 0; | |
4837 | ||
4838 | if (PARTITION_EXISTS(p)) /* Never format existing partitions */ | |
4839 | return 0; | |
4840 | ||
a954b427 | 4841 | /* Minimized partitions will use the copy blocks logic so skip those here. */ |
5eef7047 DDM |
4842 | if (p->copy_blocks_fd >= 0) |
4843 | return 0; | |
4844 | ||
2b392d86 DDM |
4845 | assert_se(dp = p->siblings[VERITY_DATA]); |
4846 | assert(!dp->dropped); | |
4847 | ||
cf18d96f DDM |
4848 | (void) partition_hint(p, node, &hint); |
4849 | ||
2b392d86 DDM |
4850 | r = dlopen_cryptsetup(); |
4851 | if (r < 0) | |
4852 | return log_error_errno(r, "libcryptsetup not found, cannot setup verity: %m"); | |
4853 | ||
13bde177 DDM |
4854 | if (!node) { |
4855 | r = partition_target_prepare(context, p, p->new_size, /*need_path=*/ true, &t); | |
4856 | if (r < 0) | |
4857 | return r; | |
2b392d86 | 4858 | |
13bde177 DDM |
4859 | node = partition_target_path(t); |
4860 | } | |
4861 | ||
c380047b MC |
4862 | if (p->verity_data_block_size == UINT64_MAX) |
4863 | p->verity_data_block_size = context->fs_sector_size; | |
4864 | if (p->verity_hash_block_size == UINT64_MAX) | |
4865 | p->verity_hash_block_size = context->fs_sector_size; | |
4866 | ||
13bde177 | 4867 | r = sym_crypt_init(&cd, node); |
2b392d86 | 4868 | if (r < 0) |
cf18d96f | 4869 | return log_error_errno(r, "Failed to allocate libcryptsetup context for %s: %m", node); |
2b392d86 | 4870 | |
e21be797 DDM |
4871 | cryptsetup_enable_logging(cd); |
4872 | ||
2b392d86 | 4873 | r = sym_crypt_format( |
81e04781 | 4874 | cd, CRYPT_VERITY, NULL, NULL, SD_ID128_TO_UUID_STRING(p->verity_uuid), NULL, 0, |
2b392d86 DDM |
4875 | &(struct crypt_params_verity){ |
4876 | .data_device = data_node, | |
4877 | .flags = CRYPT_VERITY_CREATE_HASH, | |
4878 | .hash_name = "sha256", | |
4879 | .hash_type = 1, | |
c380047b MC |
4880 | .data_block_size = p->verity_data_block_size, |
4881 | .hash_block_size = p->verity_hash_block_size, | |
81e04781 VH |
4882 | .salt_size = sizeof(p->verity_salt), |
4883 | .salt = (const char*)p->verity_salt, | |
2b392d86 | 4884 | }); |
e21be797 DDM |
4885 | if (r < 0) { |
4886 | /* libcryptsetup reports non-descriptive EIO errors for every I/O failure. Luckily, it | |
4887 | * doesn't clobber errno so let's check for ENOSPC so we can report a better error if the | |
4888 | * partition is too small. */ | |
4889 | if (r == -EIO && errno == ENOSPC) | |
4890 | return log_error_errno(errno, | |
cf18d96f DDM |
4891 | "Verity hash data does not fit in partition %s with size %s", |
4892 | strna(hint), FORMAT_BYTES(p->new_size)); | |
e21be797 | 4893 | |
cf18d96f | 4894 | return log_error_errno(r, "Failed to setup verity hash data of partition %s: %m", strna(hint)); |
e21be797 | 4895 | } |
2b392d86 | 4896 | |
13bde177 DDM |
4897 | if (t) { |
4898 | r = partition_target_sync(context, p, t); | |
4899 | if (r < 0) | |
4900 | return r; | |
4901 | } | |
a64769d6 | 4902 | |
2b392d86 DDM |
4903 | r = sym_crypt_get_volume_key_size(cd); |
4904 | if (r < 0) | |
cf18d96f | 4905 | return log_error_errno(r, "Failed to determine verity root hash size of partition %s: %m", strna(hint)); |
2b392d86 | 4906 | |
6b4b40f4 LP |
4907 | _cleanup_(iovec_done) struct iovec rh = { |
4908 | .iov_base = malloc(r), | |
4909 | .iov_len = r, | |
4910 | }; | |
4911 | if (!rh.iov_base) | |
2b392d86 DDM |
4912 | return log_oom(); |
4913 | ||
6b4b40f4 | 4914 | r = sym_crypt_volume_key_get(cd, CRYPT_ANY_SLOT, (char *) rh.iov_base, &rh.iov_len, NULL, 0); |
2b392d86 | 4915 | if (r < 0) |
cf18d96f | 4916 | return log_error_errno(r, "Failed to get verity root hash of partition %s: %m", strna(hint)); |
2b392d86 | 4917 | |
6b4b40f4 | 4918 | assert(rh.iov_len >= sizeof(sd_id128_t) * 2); |
2b392d86 DDM |
4919 | |
4920 | if (!dp->new_uuid_is_set) { | |
6b4b40f4 | 4921 | memcpy_safe(dp->new_uuid.bytes, rh.iov_base, sizeof(sd_id128_t)); |
2b392d86 DDM |
4922 | dp->new_uuid_is_set = true; |
4923 | } | |
4924 | ||
4925 | if (!p->new_uuid_is_set) { | |
6b4b40f4 | 4926 | memcpy_safe(p->new_uuid.bytes, (uint8_t*) rh.iov_base + (rh.iov_len - sizeof(sd_id128_t)), sizeof(sd_id128_t)); |
2b392d86 DDM |
4927 | p->new_uuid_is_set = true; |
4928 | } | |
4929 | ||
3c9783c7 | 4930 | p->roothash = TAKE_STRUCT(rh); |
2b392d86 DDM |
4931 | |
4932 | return 0; | |
4933 | #else | |
4e494e6a | 4934 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "libcryptsetup is not supported, cannot setup verity hashes."); |
2b392d86 DDM |
4935 | #endif |
4936 | } | |
4937 | ||
4ecd39c5 | 4938 | static int sign_verity_roothash( |
6b4b40f4 LP |
4939 | const struct iovec *roothash, |
4940 | struct iovec *ret_signature) { | |
4ecd39c5 DDM |
4941 | |
4942 | #if HAVE_OPENSSL | |
4943 | _cleanup_(BIO_freep) BIO *rb = NULL; | |
4944 | _cleanup_(PKCS7_freep) PKCS7 *p7 = NULL; | |
4945 | _cleanup_free_ char *hex = NULL; | |
4946 | _cleanup_free_ uint8_t *sig = NULL; | |
4947 | int sigsz; | |
4948 | ||
4949 | assert(roothash); | |
6b4b40f4 | 4950 | assert(iovec_is_set(roothash)); |
4ecd39c5 | 4951 | assert(ret_signature); |
4ecd39c5 | 4952 | |
6b4b40f4 | 4953 | hex = hexmem(roothash->iov_base, roothash->iov_len); |
4ecd39c5 DDM |
4954 | if (!hex) |
4955 | return log_oom(); | |
4956 | ||
4957 | rb = BIO_new_mem_buf(hex, -1); | |
4958 | if (!rb) | |
4959 | return log_oom(); | |
4960 | ||
4961 | p7 = PKCS7_sign(arg_certificate, arg_private_key, NULL, rb, PKCS7_DETACHED|PKCS7_NOATTR|PKCS7_BINARY); | |
4962 | if (!p7) | |
4963 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to calculate PKCS7 signature: %s", | |
4964 | ERR_error_string(ERR_get_error(), NULL)); | |
4965 | ||
4966 | sigsz = i2d_PKCS7(p7, &sig); | |
4967 | if (sigsz < 0) | |
4968 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to convert PKCS7 signature to DER: %s", | |
4969 | ERR_error_string(ERR_get_error(), NULL)); | |
4970 | ||
c490b6dd | 4971 | *ret_signature = IOVEC_MAKE(TAKE_PTR(sig), sigsz); |
4ecd39c5 DDM |
4972 | |
4973 | return 0; | |
4974 | #else | |
4e494e6a | 4975 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "OpenSSL is not supported, cannot setup verity signature."); |
4ecd39c5 DDM |
4976 | #endif |
4977 | } | |
4978 | ||
4979 | static int partition_format_verity_sig(Context *context, Partition *p) { | |
309a747f | 4980 | _cleanup_(sd_json_variant_unrefp) sd_json_variant *v = NULL; |
7dc951ef | 4981 | _cleanup_(iovec_done) struct iovec sig = {}; |
cf18d96f | 4982 | _cleanup_free_ char *text = NULL, *hint = NULL; |
4ecd39c5 DDM |
4983 | Partition *hp; |
4984 | uint8_t fp[X509_FINGERPRINT_SIZE]; | |
4ecd39c5 DDM |
4985 | int whole_fd, r; |
4986 | ||
4987 | assert(p->verity == VERITY_SIG); | |
4988 | ||
4989 | if (p->dropped) | |
4990 | return 0; | |
4991 | ||
4992 | if (PARTITION_EXISTS(p)) | |
4993 | return 0; | |
4994 | ||
cf18d96f DDM |
4995 | (void) partition_hint(p, context->node, &hint); |
4996 | ||
4ecd39c5 DDM |
4997 | assert_se(hp = p->siblings[VERITY_HASH]); |
4998 | assert(!hp->dropped); | |
4999 | ||
5000 | assert(arg_certificate); | |
5001 | ||
5002 | assert_se((whole_fd = fdisk_get_devfd(context->fdisk_context)) >= 0); | |
5003 | ||
6b4b40f4 | 5004 | r = sign_verity_roothash(&hp->roothash, &sig); |
4ecd39c5 DDM |
5005 | if (r < 0) |
5006 | return r; | |
5007 | ||
5008 | r = x509_fingerprint(arg_certificate, fp); | |
5009 | if (r < 0) | |
5010 | return log_error_errno(r, "Unable to calculate X509 certificate fingerprint: %m"); | |
5011 | ||
be5bee2a LP |
5012 | r = sd_json_buildo( |
5013 | &v, | |
5014 | SD_JSON_BUILD_PAIR("rootHash", SD_JSON_BUILD_HEX(hp->roothash.iov_base, hp->roothash.iov_len)), | |
5015 | SD_JSON_BUILD_PAIR("certificateFingerprint", SD_JSON_BUILD_HEX(fp, sizeof(fp))), | |
5016 | SD_JSON_BUILD_PAIR("signature", JSON_BUILD_IOVEC_BASE64(&sig))); | |
4ecd39c5 | 5017 | if (r < 0) |
cf18d96f | 5018 | return log_error_errno(r, "Failed to build verity signature JSON object: %m"); |
4ecd39c5 | 5019 | |
309a747f | 5020 | r = sd_json_variant_format(v, 0, &text); |
4ecd39c5 | 5021 | if (r < 0) |
cf18d96f | 5022 | return log_error_errno(r, "Failed to format verity signature JSON object: %m"); |
4ecd39c5 | 5023 | |
3510df0a | 5024 | if (strlen(text)+1 > p->new_size) |
4e494e6a | 5025 | return log_error_errno(SYNTHETIC_ERRNO(E2BIG), "Verity signature too long for partition."); |
3510df0a | 5026 | |
d28c6ce6 | 5027 | r = strgrowpad0(&text, p->new_size); |
4ecd39c5 | 5028 | if (r < 0) |
d28c6ce6 | 5029 | return log_error_errno(r, "Failed to pad string to %s", FORMAT_BYTES(p->new_size)); |
4ecd39c5 | 5030 | |
86cbbc6d | 5031 | if (lseek(whole_fd, p->offset, SEEK_SET) < 0) |
cf18d96f | 5032 | return log_error_errno(errno, "Failed to seek to partition %s offset: %m", strna(hint)); |
4ecd39c5 | 5033 | |
e22c60a9 | 5034 | r = loop_write(whole_fd, text, p->new_size); |
4ecd39c5 | 5035 | if (r < 0) |
cf18d96f | 5036 | return log_error_errno(r, "Failed to write verity signature to partition %s: %m", strna(hint)); |
4ecd39c5 DDM |
5037 | |
5038 | if (fsync(whole_fd) < 0) | |
cf18d96f | 5039 | return log_error_errno(errno, "Failed to synchronize partition %s: %m", strna(hint)); |
4ecd39c5 DDM |
5040 | |
5041 | return 0; | |
5042 | } | |
5043 | ||
add090ea LP |
5044 | static int progress_bytes(uint64_t n_bytes, void *userdata) { |
5045 | Partition *p = ASSERT_PTR(userdata); | |
5046 | _cleanup_free_ char *s = NULL; | |
5047 | ||
5048 | p->copy_blocks_done += n_bytes; | |
5049 | ||
6e199216 | 5050 | if (asprintf(&s, "%s %s %s %s/%s", |
add090ea LP |
5051 | strna(p->copy_blocks_path), |
5052 | special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), | |
5053 | strna(p->definition_path), | |
5054 | FORMAT_BYTES(p->copy_blocks_done), | |
5055 | FORMAT_BYTES(p->copy_blocks_size)) < 0) | |
5056 | return log_oom(); | |
5057 | ||
5058 | draw_progress_bar(s, | |
5059 | p->copy_blocks_done >= p->copy_blocks_size ? 100.0 : /* catch division be zero */ | |
5060 | 100.0 * (double) p->copy_blocks_done / (double) p->copy_blocks_size); | |
5061 | return 0; | |
5062 | } | |
5063 | ||
757bc2e4 | 5064 | static int context_copy_blocks(Context *context) { |
a64769d6 | 5065 | int r; |
757bc2e4 LP |
5066 | |
5067 | assert(context); | |
5068 | ||
5069 | /* Copy in file systems on the block level */ | |
5070 | ||
5071 | LIST_FOREACH(partitions, p, context->partitions) { | |
a64769d6 | 5072 | _cleanup_(partition_target_freep) PartitionTarget *t = NULL; |
757bc2e4 LP |
5073 | |
5074 | if (p->copy_blocks_fd < 0) | |
5075 | continue; | |
5076 | ||
5077 | if (p->dropped) | |
5078 | continue; | |
5079 | ||
5080 | if (PARTITION_EXISTS(p)) /* Never copy over existing partitions */ | |
5081 | continue; | |
5082 | ||
c74d50ff | 5083 | if (partition_type_defer(&p->type)) |
81d1098b DDM |
5084 | continue; |
5085 | ||
757bc2e4 | 5086 | assert(p->new_size != UINT64_MAX); |
468d09c3 LP |
5087 | |
5088 | size_t extra = p->encrypt != ENCRYPT_OFF ? LUKS2_METADATA_KEEP_FREE : 0; | |
5089 | ||
5090 | if (p->copy_blocks_size == UINT64_MAX) | |
5091 | p->copy_blocks_size = LESS_BY(p->new_size, extra); | |
5092 | ||
5093 | assert(p->new_size >= p->copy_blocks_size + extra); | |
757bc2e4 | 5094 | |
b7786df0 LP |
5095 | usec_t start_timestamp = now(CLOCK_MONOTONIC); |
5096 | ||
a64769d6 DDM |
5097 | r = partition_target_prepare(context, p, p->new_size, |
5098 | /*need_path=*/ p->encrypt != ENCRYPT_OFF || p->siblings[VERITY_HASH], | |
5099 | &t); | |
5100 | if (r < 0) | |
5101 | return r; | |
757bc2e4 | 5102 | |
a09ae915 DDM |
5103 | if (p->encrypt != ENCRYPT_OFF && t->loop) { |
5104 | r = partition_encrypt(context, p, t, /* offline = */ false); | |
5105 | if (r < 0) | |
5106 | return r; | |
5107 | } | |
5108 | ||
a053f801 LP |
5109 | if (p->copy_blocks_offset == UINT64_MAX) |
5110 | log_info("Copying in '%s' (%s) on block level into future partition %" PRIu64 ".", | |
5111 | p->copy_blocks_path, FORMAT_BYTES(p->copy_blocks_size), p->partno); | |
5112 | else { | |
5113 | log_info("Copying in '%s' @ %" PRIu64 " (%s) on block level into future partition %" PRIu64 ".", | |
5114 | p->copy_blocks_path, p->copy_blocks_offset, FORMAT_BYTES(p->copy_blocks_size), p->partno); | |
5115 | ||
5116 | if (lseek(p->copy_blocks_fd, p->copy_blocks_offset, SEEK_SET) < 0) | |
5117 | return log_error_errno(errno, "Failed to seek to copy blocks offset in %s: %m", p->copy_blocks_path); | |
5118 | } | |
1e46985a | 5119 | |
add090ea LP |
5120 | r = copy_bytes_full(p->copy_blocks_fd, partition_target_fd(t), p->copy_blocks_size, COPY_REFLINK, /* ret_remains= */ NULL, /* ret_remains_size= */ NULL, progress_bytes, p); |
5121 | clear_progress_bar(/* prefix= */ NULL); | |
757bc2e4 LP |
5122 | if (r < 0) |
5123 | return log_error_errno(r, "Failed to copy in data from '%s': %m", p->copy_blocks_path); | |
5124 | ||
a09ae915 DDM |
5125 | log_info("Copying in of '%s' on block level completed.", p->copy_blocks_path); |
5126 | ||
5127 | if (p->encrypt != ENCRYPT_OFF && !t->loop) { | |
5128 | r = partition_encrypt(context, p, t, /* offline = */ true); | |
b9df3536 LP |
5129 | if (r < 0) |
5130 | return r; | |
b9df3536 LP |
5131 | } |
5132 | ||
a64769d6 DDM |
5133 | r = partition_target_sync(context, p, t); |
5134 | if (r < 0) | |
5135 | return r; | |
48a09a8f | 5136 | |
b7786df0 LP |
5137 | usec_t time_spent = usec_sub_unsigned(now(CLOCK_MONOTONIC), start_timestamp); |
5138 | if (time_spent > 250 * USEC_PER_MSEC) /* Show throughput, but not if we spent too little time on it, since it's just noise then */ | |
5139 | log_info("Block level copying and synchronization of partition %" PRIu64 " complete in %s (%s/s).", | |
5140 | p->partno, FORMAT_TIMESPAN(time_spent, 0), FORMAT_BYTES((uint64_t) ((double) p->copy_blocks_size / time_spent * USEC_PER_SEC))); | |
5141 | else | |
5142 | log_info("Block level copying and synchronization of partition %" PRIu64 " complete in %s.", | |
5143 | p->partno, FORMAT_TIMESPAN(time_spent, 0)); | |
5144 | ||
c74d50ff | 5145 | if (p->siblings[VERITY_HASH] && !partition_type_defer(&p->siblings[VERITY_HASH]->type)) { |
a64769d6 | 5146 | r = partition_format_verity_hash(context, p->siblings[VERITY_HASH], |
13bde177 | 5147 | /* node = */ NULL, partition_target_path(t)); |
2b392d86 DDM |
5148 | if (r < 0) |
5149 | return r; | |
5150 | } | |
4ecd39c5 | 5151 | |
c74d50ff | 5152 | if (p->siblings[VERITY_SIG] && !partition_type_defer(&p->siblings[VERITY_SIG]->type)) { |
4ecd39c5 DDM |
5153 | r = partition_format_verity_sig(context, p->siblings[VERITY_SIG]); |
5154 | if (r < 0) | |
5155 | return r; | |
5156 | } | |
757bc2e4 LP |
5157 | } |
5158 | ||
5159 | return 0; | |
5160 | } | |
5161 | ||
e57b7020 DDM |
5162 | static int add_exclude_path(const char *path, Hashmap **denylist, DenyType type) { |
5163 | _cleanup_free_ struct stat *st = NULL; | |
5164 | int r; | |
5165 | ||
5166 | assert(path); | |
5167 | assert(denylist); | |
5168 | ||
5169 | st = new(struct stat, 1); | |
5170 | if (!st) | |
5171 | return log_oom(); | |
5172 | ||
607343a1 | 5173 | r = chase_and_stat(path, arg_copy_source, CHASE_PREFIX_ROOT, NULL, st); |
e57b7020 DDM |
5174 | if (r == -ENOENT) |
5175 | return 0; | |
5176 | if (r < 0) | |
607343a1 | 5177 | return log_error_errno(r, "Failed to stat source file '%s/%s': %m", strempty(arg_copy_source), path); |
e57b7020 DDM |
5178 | |
5179 | r = hashmap_ensure_put(denylist, &inode_hash_ops, st, INT_TO_PTR(type)); | |
5180 | if (r == -EEXIST) | |
5181 | return 0; | |
5182 | if (r < 0) | |
5183 | return log_oom(); | |
5184 | if (r > 0) | |
5185 | TAKE_PTR(st); | |
5186 | ||
5187 | return 0; | |
5188 | } | |
5189 | ||
2cb9c68c AV |
5190 | static int shallow_join_strv(char ***ret, char **a, char **b) { |
5191 | _cleanup_free_ char **joined = NULL; | |
5192 | char **iter; | |
5193 | ||
5194 | assert(ret); | |
5195 | ||
5196 | joined = new(char*, strv_length(a) + strv_length(b) + 1); | |
5197 | if (!joined) | |
5198 | return log_oom(); | |
5199 | ||
5200 | iter = joined; | |
5201 | ||
5202 | STRV_FOREACH(i, a) | |
5203 | *(iter++) = *i; | |
5204 | ||
5205 | STRV_FOREACH(i, b) | |
5206 | if (!strv_contains(joined, *i)) | |
5207 | *(iter++) = *i; | |
5208 | ||
5209 | *iter = NULL; | |
5210 | ||
5211 | *ret = TAKE_PTR(joined); | |
5212 | return 0; | |
5213 | } | |
5214 | ||
e57b7020 DDM |
5215 | static int make_copy_files_denylist( |
5216 | Context *context, | |
5217 | const Partition *p, | |
5218 | const char *source, | |
5219 | const char *target, | |
5220 | Hashmap **ret) { | |
5221 | ||
5222 | _cleanup_hashmap_free_ Hashmap *denylist = NULL; | |
2cb9c68c | 5223 | _cleanup_free_ char **override_exclude_src = NULL, **override_exclude_tgt = NULL; |
e57b7020 DDM |
5224 | int r; |
5225 | ||
5226 | assert(context); | |
5227 | assert(p); | |
5228 | assert(source); | |
5229 | assert(target); | |
5230 | assert(ret); | |
5231 | ||
5232 | /* Always exclude the top level APIVFS and temporary directories since the contents of these | |
5233 | * directories are almost certainly not intended to end up in an image. */ | |
5234 | ||
5235 | NULSTR_FOREACH(s, APIVFS_TMP_DIRS_NULSTR) { | |
5236 | r = add_exclude_path(s, &denylist, DENY_CONTENTS); | |
5237 | if (r < 0) | |
5238 | return r; | |
5239 | } | |
5240 | ||
5241 | /* Add the user configured excludes. */ | |
5242 | ||
2cb9c68c AV |
5243 | if (p->suppressing) { |
5244 | r = shallow_join_strv(&override_exclude_src, | |
5245 | p->exclude_files_source, | |
5246 | p->suppressing->exclude_files_source); | |
5247 | if (r < 0) | |
5248 | return r; | |
5249 | r = shallow_join_strv(&override_exclude_tgt, | |
5250 | p->exclude_files_target, | |
5251 | p->suppressing->exclude_files_target); | |
5252 | if (r < 0) | |
5253 | return r; | |
5254 | } | |
5255 | ||
5256 | STRV_FOREACH(e, override_exclude_src ?: p->exclude_files_source) { | |
e57b7020 DDM |
5257 | r = add_exclude_path(*e, &denylist, endswith(*e, "/") ? DENY_CONTENTS : DENY_INODE); |
5258 | if (r < 0) | |
5259 | return r; | |
5260 | } | |
5261 | ||
2cb9c68c | 5262 | STRV_FOREACH(e, override_exclude_tgt ?: p->exclude_files_target) { |
600bf76c DDM |
5263 | _cleanup_free_ char *path = NULL; |
5264 | ||
5265 | const char *s = path_startswith(*e, target); | |
5266 | if (!s) | |
5267 | continue; | |
5268 | ||
5269 | path = path_join(source, s); | |
5270 | if (!path) | |
5271 | return log_oom(); | |
5272 | ||
5273 | r = add_exclude_path(path, &denylist, endswith(*e, "/") ? DENY_CONTENTS : DENY_INODE); | |
5274 | if (r < 0) | |
5275 | return r; | |
5276 | } | |
5277 | ||
e57b7020 DDM |
5278 | /* If we're populating a root partition, we don't want any files to end up under the APIVFS mount |
5279 | * points. While we already exclude <source>/proc, users could still do something such as | |
5280 | * "CopyFiles=/abc:/". Now, if /abc has a proc subdirectory with files in it, those will end up in | |
5281 | * the top level proc directory in the root partition, which we want to avoid. To deal with these | |
5282 | * cases, whenever we're populating a root partition and the target of CopyFiles= is the root | |
5283 | * directory of the root partition, we exclude all directories under the source that are named after | |
5284 | * APIVFS directories or named after mount points of other partitions that are also going to be part | |
5285 | * of the image. */ | |
5286 | ||
5287 | if (p->type.designator == PARTITION_ROOT && empty_or_root(target)) { | |
5288 | LIST_FOREACH(partitions, q, context->partitions) { | |
5289 | if (q->type.designator == PARTITION_ROOT) | |
5290 | continue; | |
5291 | ||
5292 | const char *sources = gpt_partition_type_mountpoint_nulstr(q->type); | |
5293 | if (!sources) | |
5294 | continue; | |
5295 | ||
5296 | NULSTR_FOREACH(s, sources) { | |
5297 | _cleanup_free_ char *path = NULL; | |
5298 | ||
5299 | /* Exclude only the children of partition mount points so that the nested | |
5300 | * partition mount point itself still ends up in the upper partition. */ | |
5301 | ||
5302 | path = path_join(source, s); | |
5303 | if (!path) | |
5304 | return -ENOMEM; | |
5305 | ||
5306 | r = add_exclude_path(path, &denylist, DENY_CONTENTS); | |
5307 | if (r < 0) | |
5308 | return r; | |
5309 | } | |
5310 | } | |
5311 | ||
5312 | NULSTR_FOREACH(s, APIVFS_TMP_DIRS_NULSTR) { | |
5313 | _cleanup_free_ char *path = NULL; | |
5314 | ||
5315 | path = path_join(source, s); | |
5316 | if (!path) | |
5317 | return -ENOMEM; | |
5318 | ||
5319 | r = add_exclude_path(path, &denylist, DENY_CONTENTS); | |
5320 | if (r < 0) | |
5321 | return r; | |
5322 | } | |
5323 | } | |
5324 | ||
5325 | *ret = TAKE_PTR(denylist); | |
5326 | return 0; | |
5327 | } | |
5328 | ||
440f805c DDM |
5329 | static int add_subvolume_path(const char *path, Set **subvolumes) { |
5330 | _cleanup_free_ struct stat *st = NULL; | |
5331 | int r; | |
5332 | ||
5333 | assert(path); | |
5334 | assert(subvolumes); | |
5335 | ||
5336 | st = new(struct stat, 1); | |
5337 | if (!st) | |
5338 | return log_oom(); | |
5339 | ||
607343a1 | 5340 | r = chase_and_stat(path, arg_copy_source, CHASE_PREFIX_ROOT, NULL, st); |
440f805c DDM |
5341 | if (r == -ENOENT) |
5342 | return 0; | |
5343 | if (r < 0) | |
607343a1 | 5344 | return log_error_errno(r, "Failed to stat source file '%s/%s': %m", strempty(arg_copy_source), path); |
440f805c | 5345 | |
fc159b2f | 5346 | r = set_ensure_consume(subvolumes, &inode_hash_ops, TAKE_PTR(st)); |
440f805c DDM |
5347 | if (r < 0) |
5348 | return log_oom(); | |
440f805c DDM |
5349 | |
5350 | return 0; | |
5351 | } | |
5352 | ||
562881c1 DDM |
5353 | static int make_subvolumes_strv(const Partition *p, char ***ret) { |
5354 | _cleanup_strv_free_ char **subvolumes = NULL; | |
5355 | Subvolume *subvolume; | |
2cb9c68c | 5356 | int r; |
562881c1 DDM |
5357 | |
5358 | assert(p); | |
5359 | assert(ret); | |
5360 | ||
5361 | ORDERED_HASHMAP_FOREACH(subvolume, p->subvolumes) | |
5362 | if (strv_extend(&subvolumes, subvolume->path) < 0) | |
5363 | return log_oom(); | |
5364 | ||
2cb9c68c | 5365 | if (p->suppressing) { |
a2c8652a | 5366 | char **suppressing; |
2cb9c68c AV |
5367 | |
5368 | r = make_subvolumes_strv(p->suppressing, &suppressing); | |
5369 | if (r < 0) | |
5370 | return r; | |
5371 | ||
a2c8652a | 5372 | r = strv_extend_strv_consume(&subvolumes, suppressing, /* filter_duplicates= */ true); |
2cb9c68c AV |
5373 | if (r < 0) |
5374 | return log_oom(); | |
5375 | } | |
5376 | ||
562881c1 DDM |
5377 | *ret = TAKE_PTR(subvolumes); |
5378 | return 0; | |
5379 | } | |
5380 | ||
440f805c | 5381 | static int make_subvolumes_set( |
440f805c DDM |
5382 | const Partition *p, |
5383 | const char *source, | |
5384 | const char *target, | |
5385 | Set **ret) { | |
562881c1 | 5386 | |
2cb9c68c | 5387 | _cleanup_strv_free_ char **paths = NULL; |
440f805c DDM |
5388 | _cleanup_set_free_ Set *subvolumes = NULL; |
5389 | int r; | |
5390 | ||
440f805c DDM |
5391 | assert(p); |
5392 | assert(target); | |
5393 | assert(ret); | |
5394 | ||
2cb9c68c AV |
5395 | r = make_subvolumes_strv(p, &paths); |
5396 | if (r < 0) | |
5397 | return r; | |
5398 | ||
5399 | STRV_FOREACH(subvolume, paths) { | |
440f805c DDM |
5400 | _cleanup_free_ char *path = NULL; |
5401 | ||
2cb9c68c | 5402 | const char *s = path_startswith(*subvolume, target); |
440f805c DDM |
5403 | if (!s) |
5404 | continue; | |
5405 | ||
5406 | path = path_join(source, s); | |
5407 | if (!path) | |
5408 | return log_oom(); | |
5409 | ||
5410 | r = add_subvolume_path(path, &subvolumes); | |
5411 | if (r < 0) | |
5412 | return r; | |
5413 | } | |
5414 | ||
5415 | *ret = TAKE_PTR(subvolumes); | |
5416 | return 0; | |
5417 | } | |
5418 | ||
34c3d574 MS |
5419 | static usec_t epoch_or_infinity(void) { |
5420 | static usec_t cache; | |
5421 | static bool cached = false; | |
5422 | uint64_t epoch; | |
5423 | int r; | |
5424 | ||
5425 | if (cached) | |
5426 | return cache; | |
5427 | ||
5428 | r = secure_getenv_uint64("SOURCE_DATE_EPOCH", &epoch); | |
5429 | if (r >= 0) { | |
5430 | if (epoch <= UINT64_MAX / USEC_PER_SEC) { /* Overflow check */ | |
5431 | cached = true; | |
5432 | return (cache = epoch * USEC_PER_SEC); | |
5433 | } | |
5434 | r = -ERANGE; | |
5435 | } | |
5436 | if (r != -ENXIO) | |
5437 | log_debug_errno(r, "Failed to parse $SOURCE_DATE_EPOCH, ignoring: %m"); | |
5438 | ||
5439 | cached = true; | |
5440 | return (cache = USEC_INFINITY); | |
5441 | } | |
5442 | ||
e57b7020 | 5443 | static int do_copy_files(Context *context, Partition *p, const char *root) { |
562881c1 | 5444 | _cleanup_strv_free_ char **subvolumes = NULL; |
2cb9c68c | 5445 | _cleanup_free_ char **override_copy_files = NULL; |
8a794850 LP |
5446 | int r; |
5447 | ||
5448 | assert(p); | |
92cd7e7c | 5449 | assert(root); |
8a794850 | 5450 | |
562881c1 DDM |
5451 | r = make_subvolumes_strv(p, &subvolumes); |
5452 | if (r < 0) | |
5453 | return r; | |
5454 | ||
2cb9c68c AV |
5455 | if (p->suppressing) { |
5456 | r = shallow_join_strv(&override_copy_files, p->copy_files, p->suppressing->copy_files); | |
5457 | if (r < 0) | |
5458 | return r; | |
5459 | } | |
5460 | ||
3e451460 DDM |
5461 | /* copy_tree_at() automatically copies the permissions of source directories to target directories if |
5462 | * it created them. However, the root directory is created by us, so we have to manually take care | |
5463 | * that it is initialized. We use the first source directory targeting "/" as the metadata source for | |
5464 | * the root directory. */ | |
2cb9c68c | 5465 | STRV_FOREACH_PAIR(source, target, override_copy_files ?: p->copy_files) { |
3e451460 DDM |
5466 | _cleanup_close_ int rfd = -EBADF, sfd = -EBADF; |
5467 | ||
5468 | if (!path_equal(*target, "/")) | |
5469 | continue; | |
5470 | ||
5471 | rfd = open(root, O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
5472 | if (rfd < 0) | |
9f08d7f7 | 5473 | return -errno; |
3e451460 | 5474 | |
607343a1 | 5475 | sfd = chase_and_open(*source, arg_copy_source, CHASE_PREFIX_ROOT, O_PATH|O_DIRECTORY|O_CLOEXEC|O_NOCTTY, NULL); |
3e451460 | 5476 | if (sfd < 0) |
607343a1 | 5477 | return log_error_errno(sfd, "Failed to open source file '%s%s': %m", strempty(arg_copy_source), *source); |
3e451460 DDM |
5478 | |
5479 | (void) copy_xattr(sfd, NULL, rfd, NULL, COPY_ALL_XATTRS); | |
5480 | (void) copy_access(sfd, rfd); | |
5481 | (void) copy_times(sfd, rfd, 0); | |
5482 | ||
5483 | break; | |
5484 | } | |
5485 | ||
2cb9c68c | 5486 | STRV_FOREACH_PAIR(source, target, override_copy_files ?: p->copy_files) { |
e57b7020 | 5487 | _cleanup_hashmap_free_ Hashmap *denylist = NULL; |
440f805c | 5488 | _cleanup_set_free_ Set *subvolumes_by_source_inode = NULL; |
254d1313 | 5489 | _cleanup_close_ int sfd = -EBADF, pfd = -EBADF, tfd = -EBADF; |
34c3d574 | 5490 | usec_t ts = epoch_or_infinity(); |
8a794850 | 5491 | |
e57b7020 DDM |
5492 | r = make_copy_files_denylist(context, p, *source, *target, &denylist); |
5493 | if (r < 0) | |
5494 | return r; | |
5495 | ||
9023266a | 5496 | r = make_subvolumes_set(p, *source, *target, &subvolumes_by_source_inode); |
440f805c DDM |
5497 | if (r < 0) |
5498 | return r; | |
5499 | ||
607343a1 | 5500 | sfd = chase_and_open(*source, arg_copy_source, CHASE_PREFIX_ROOT, O_CLOEXEC|O_NOCTTY, NULL); |
489b0f51 LP |
5501 | if (sfd == -ENOENT) { |
5502 | log_notice_errno(sfd, "Failed to open source file '%s%s', skipping: %m", strempty(arg_copy_source), *source); | |
5503 | continue; | |
5504 | } | |
8a794850 | 5505 | if (sfd < 0) |
607343a1 | 5506 | return log_error_errno(sfd, "Failed to open source file '%s%s': %m", strempty(arg_copy_source), *source); |
8a794850 LP |
5507 | |
5508 | r = fd_verify_regular(sfd); | |
5509 | if (r < 0) { | |
5510 | if (r != -EISDIR) | |
5511 | return log_error_errno(r, "Failed to check type of source file '%s': %m", *source); | |
5512 | ||
5513 | /* We are looking at a directory */ | |
f461a28d | 5514 | tfd = chase_and_open(*target, root, CHASE_PREFIX_ROOT, O_RDONLY|O_DIRECTORY|O_CLOEXEC, NULL); |
8a794850 | 5515 | if (tfd < 0) { |
f21a3a82 LP |
5516 | _cleanup_free_ char *dn = NULL, *fn = NULL; |
5517 | ||
8a794850 LP |
5518 | if (tfd != -ENOENT) |
5519 | return log_error_errno(tfd, "Failed to open target directory '%s': %m", *target); | |
5520 | ||
f21a3a82 LP |
5521 | r = path_extract_filename(*target, &fn); |
5522 | if (r < 0) | |
5523 | return log_error_errno(r, "Failed to extract filename from '%s': %m", *target); | |
5524 | ||
5525 | r = path_extract_directory(*target, &dn); | |
5526 | if (r < 0) | |
5527 | return log_error_errno(r, "Failed to extract directory from '%s': %m", *target); | |
5528 | ||
562881c1 | 5529 | r = mkdir_p_root_full(root, dn, UID_INVALID, GID_INVALID, 0755, ts, subvolumes); |
8a794850 LP |
5530 | if (r < 0) |
5531 | return log_error_errno(r, "Failed to create parent directory '%s': %m", dn); | |
5532 | ||
f461a28d | 5533 | pfd = chase_and_open(dn, root, CHASE_PREFIX_ROOT, O_RDONLY|O_DIRECTORY|O_CLOEXEC, NULL); |
8a794850 LP |
5534 | if (pfd < 0) |
5535 | return log_error_errno(pfd, "Failed to open parent directory of target: %m"); | |
5536 | ||
652d9040 LP |
5537 | r = copy_tree_at( |
5538 | sfd, ".", | |
6020d00d | 5539 | pfd, fn, |
ff1b55ff | 5540 | UID_INVALID, GID_INVALID, |
d850a544 | 5541 | COPY_REFLINK|COPY_HOLES|COPY_MERGE|COPY_REPLACE|COPY_SIGINT|COPY_HARDLINKS|COPY_ALL_XATTRS|COPY_GRACEFUL_WARN|COPY_TRUNCATE|COPY_RESTORE_DIRECTORY_TIMESTAMPS, |
440f805c | 5542 | denylist, subvolumes_by_source_inode); |
8a794850 | 5543 | } else |
652d9040 LP |
5544 | r = copy_tree_at( |
5545 | sfd, ".", | |
5546 | tfd, ".", | |
ff1b55ff | 5547 | UID_INVALID, GID_INVALID, |
d850a544 | 5548 | COPY_REFLINK|COPY_HOLES|COPY_MERGE|COPY_REPLACE|COPY_SIGINT|COPY_HARDLINKS|COPY_ALL_XATTRS|COPY_GRACEFUL_WARN|COPY_TRUNCATE|COPY_RESTORE_DIRECTORY_TIMESTAMPS, |
440f805c | 5549 | denylist, subvolumes_by_source_inode); |
8a794850 | 5550 | if (r < 0) |
cf2ed23c | 5551 | return log_error_errno(r, "Failed to copy '%s%s' to '%s%s': %m", |
607343a1 | 5552 | strempty(arg_copy_source), *source, strempty(root), *target); |
8a794850 | 5553 | } else { |
f21a3a82 LP |
5554 | _cleanup_free_ char *dn = NULL, *fn = NULL; |
5555 | ||
8a794850 LP |
5556 | /* We are looking at a regular file */ |
5557 | ||
f21a3a82 LP |
5558 | r = path_extract_filename(*target, &fn); |
5559 | if (r == -EADDRNOTAVAIL || r == O_DIRECTORY) | |
5560 | return log_error_errno(SYNTHETIC_ERRNO(EISDIR), | |
5561 | "Target path '%s' refers to a directory, but source path '%s' refers to regular file, can't copy.", *target, *source); | |
5562 | if (r < 0) | |
5563 | return log_error_errno(r, "Failed to extract filename from '%s': %m", *target); | |
5564 | ||
5565 | r = path_extract_directory(*target, &dn); | |
5566 | if (r < 0) | |
5567 | return log_error_errno(r, "Failed to extract directory from '%s': %m", *target); | |
5568 | ||
562881c1 | 5569 | r = mkdir_p_root_full(root, dn, UID_INVALID, GID_INVALID, 0755, ts, subvolumes); |
8a794850 LP |
5570 | if (r < 0) |
5571 | return log_error_errno(r, "Failed to create parent directory: %m"); | |
5572 | ||
f461a28d | 5573 | pfd = chase_and_open(dn, root, CHASE_PREFIX_ROOT, O_RDONLY|O_DIRECTORY|O_CLOEXEC, NULL); |
8a794850 | 5574 | if (pfd < 0) |
a0ff9971 | 5575 | return log_error_errno(pfd, "Failed to open parent directory of target: %m"); |
8a794850 | 5576 | |
e2819067 | 5577 | tfd = openat(pfd, fn, O_CREAT|O_EXCL|O_WRONLY|O_CLOEXEC, 0700); |
8a794850 LP |
5578 | if (tfd < 0) |
5579 | return log_error_errno(errno, "Failed to create target file '%s': %m", *target); | |
5580 | ||
ab645e0a | 5581 | r = copy_bytes(sfd, tfd, UINT64_MAX, COPY_REFLINK|COPY_HOLES|COPY_SIGINT|COPY_TRUNCATE); |
8a794850 | 5582 | if (r < 0) |
607343a1 | 5583 | return log_error_errno(r, "Failed to copy '%s' to '%s%s': %m", *source, strempty(arg_copy_source), *target); |
8a794850 | 5584 | |
c17cfe6e | 5585 | (void) copy_xattr(sfd, NULL, tfd, NULL, COPY_ALL_XATTRS); |
8a794850 LP |
5586 | (void) copy_access(sfd, tfd); |
5587 | (void) copy_times(sfd, tfd, 0); | |
34c3d574 | 5588 | |
8aed8587 MY |
5589 | if (ts != USEC_INFINITY) { |
5590 | struct timespec tspec; | |
5591 | timespec_store(&tspec, ts); | |
34c3d574 | 5592 | |
c876cbdd | 5593 | if (futimens(pfd, (const struct timespec[2]) { TIMESPEC_OMIT, tspec }) < 0) |
8aed8587 MY |
5594 | return -errno; |
5595 | } | |
8a794850 LP |
5596 | } |
5597 | } | |
5598 | ||
5599 | return 0; | |
5600 | } | |
5601 | ||
49fb6e97 | 5602 | static int do_make_directories(Partition *p, const char *root) { |
562881c1 | 5603 | _cleanup_strv_free_ char **subvolumes = NULL; |
2cb9c68c | 5604 | _cleanup_free_ char **override_dirs = NULL; |
d83d8048 LP |
5605 | int r; |
5606 | ||
5607 | assert(p); | |
92cd7e7c | 5608 | assert(root); |
d83d8048 | 5609 | |
562881c1 DDM |
5610 | r = make_subvolumes_strv(p, &subvolumes); |
5611 | if (r < 0) | |
5612 | return r; | |
5613 | ||
2cb9c68c AV |
5614 | if (p->suppressing) { |
5615 | r = shallow_join_strv(&override_dirs, p->make_directories, p->suppressing->make_directories); | |
5616 | if (r < 0) | |
5617 | return r; | |
5618 | } | |
5619 | ||
5620 | STRV_FOREACH(d, override_dirs ?: p->make_directories) { | |
562881c1 | 5621 | r = mkdir_p_root_full(root, *d, UID_INVALID, GID_INVALID, 0755, epoch_or_infinity(), subvolumes); |
d83d8048 LP |
5622 | if (r < 0) |
5623 | return log_error_errno(r, "Failed to create directory '%s' in file system: %m", *d); | |
5624 | } | |
5625 | ||
5626 | return 0; | |
5627 | } | |
5628 | ||
c64ddefd DDM |
5629 | static int do_make_symlinks(Partition *p, const char *root) { |
5630 | int r; | |
5631 | ||
5632 | assert(p); | |
5633 | assert(root); | |
5634 | ||
5635 | STRV_FOREACH_PAIR(path, target, p->make_symlinks) { | |
5636 | _cleanup_close_ int parent_fd = -EBADF; | |
5637 | _cleanup_free_ char *f = NULL; | |
5638 | ||
5639 | r = chase(*path, root, CHASE_PREFIX_ROOT|CHASE_PARENT|CHASE_EXTRACT_FILENAME, &f, &parent_fd); | |
5640 | if (r < 0) | |
5641 | return log_error_errno(r, "Failed to resolve %s in %s", *path, root); | |
5642 | ||
5643 | if (symlinkat(*target, parent_fd, f) < 0) | |
5644 | return log_error_errno(errno, "Failed to create symlink at %s to %s: %m", *path, *target); | |
5645 | } | |
5646 | ||
5647 | return 0; | |
5648 | } | |
5649 | ||
562881c1 DDM |
5650 | static int make_subvolumes_read_only(Partition *p, const char *root) { |
5651 | _cleanup_free_ char *path = NULL; | |
5652 | Subvolume *subvolume; | |
5653 | int r; | |
5654 | ||
5655 | ORDERED_HASHMAP_FOREACH(subvolume, p->subvolumes) { | |
5656 | if (!FLAGS_SET(subvolume->flags, SUBVOLUME_RO)) | |
5657 | continue; | |
5658 | ||
5659 | path = path_join(root, subvolume->path); | |
5660 | if (!path) | |
5661 | return log_oom(); | |
5662 | ||
5663 | r = btrfs_subvol_set_read_only(path, true); | |
5664 | if (r < 0) | |
5665 | return log_error_errno(r, "Failed to make subvolume '%s' read-only: %m", subvolume->path); | |
5666 | } | |
5667 | ||
2cb9c68c AV |
5668 | if (p->suppressing) { |
5669 | r = make_subvolumes_read_only(p->suppressing, root); | |
5670 | if (r < 0) | |
5671 | return r; | |
5672 | } | |
5673 | ||
562881c1 DDM |
5674 | return 0; |
5675 | } | |
5676 | ||
3799fa80 DDM |
5677 | static int set_default_subvolume(Partition *p, const char *root) { |
5678 | _cleanup_free_ char *path = NULL; | |
5679 | int r; | |
5680 | ||
5681 | assert(p); | |
5682 | assert(root); | |
5683 | ||
5684 | if (!p->default_subvolume) | |
5685 | return 0; | |
5686 | ||
5687 | path = path_join(root, p->default_subvolume); | |
5688 | if (!path) | |
5689 | return log_oom(); | |
5690 | ||
5691 | r = btrfs_subvol_make_default(path); | |
5692 | if (r < 0) | |
5693 | return log_error_errno(r, "Failed to make '%s' the default subvolume: %m", p->default_subvolume); | |
5694 | ||
5695 | return 0; | |
5696 | } | |
5697 | ||
e57b7020 | 5698 | static int partition_populate_directory(Context *context, Partition *p, char **ret) { |
95bfd3cd | 5699 | _cleanup_(rm_rf_physical_and_freep) char *root = NULL; |
1eb86ddd | 5700 | const char *vt; |
95bfd3cd DDM |
5701 | int r; |
5702 | ||
e59678b2 | 5703 | assert(ret); |
95bfd3cd | 5704 | |
e0258ac8 | 5705 | log_info("Preparing to populate %s filesystem.", p->format); |
b24bfd6e | 5706 | |
1eb86ddd DDM |
5707 | r = var_tmp_dir(&vt); |
5708 | if (r < 0) | |
5709 | return log_error_errno(r, "Could not determine temporary directory: %m"); | |
95bfd3cd | 5710 | |
1eb86ddd DDM |
5711 | r = tempfn_random_child(vt, "repart", &root); |
5712 | if (r < 0) | |
5713 | return log_error_errno(r, "Failed to generate temporary directory: %m"); | |
5714 | ||
5715 | r = mkdir(root, 0755); | |
5716 | if (r < 0) | |
5717 | return log_error_errno(errno, "Failed to create temporary directory: %m"); | |
0b34f351 | 5718 | |
e57b7020 | 5719 | r = do_copy_files(context, p, root); |
95bfd3cd DDM |
5720 | if (r < 0) |
5721 | return r; | |
5722 | ||
49fb6e97 | 5723 | r = do_make_directories(p, root); |
95bfd3cd DDM |
5724 | if (r < 0) |
5725 | return r; | |
5726 | ||
c64ddefd DDM |
5727 | r = do_make_symlinks(p, root); |
5728 | if (r < 0) | |
5729 | return r; | |
5730 | ||
e0258ac8 | 5731 | log_info("Ready to populate %s filesystem.", p->format); |
b24bfd6e | 5732 | |
e59678b2 | 5733 | *ret = TAKE_PTR(root); |
95bfd3cd DDM |
5734 | return 0; |
5735 | } | |
5736 | ||
e57b7020 | 5737 | static int partition_populate_filesystem(Context *context, Partition *p, const char *node) { |
8a794850 LP |
5738 | int r; |
5739 | ||
5740 | assert(p); | |
5741 | assert(node); | |
5742 | ||
b24bfd6e | 5743 | log_info("Populating %s filesystem.", p->format); |
8a794850 LP |
5744 | |
5745 | /* We copy in a child process, since we have to mount the fs for that, and we don't want that fs to | |
5746 | * appear in the host namespace. Hence we fork a child that has its own file system namespace and | |
5747 | * detached mount propagation. */ | |
5748 | ||
e9ccae31 | 5749 | r = safe_fork("(sd-copy)", FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT|FORK_NEW_MOUNTNS|FORK_MOUNTNS_SLAVE, NULL); |
8a794850 LP |
5750 | if (r < 0) |
5751 | return r; | |
5752 | if (r == 0) { | |
5753 | static const char fs[] = "/run/systemd/mount-root"; | |
5754 | /* This is a child process with its own mount namespace and propagation to host turned off */ | |
5755 | ||
5756 | r = mkdir_p(fs, 0700); | |
5757 | if (r < 0) { | |
5758 | log_error_errno(r, "Failed to create mount point: %m"); | |
5759 | _exit(EXIT_FAILURE); | |
5760 | } | |
5761 | ||
511a8cfe | 5762 | if (mount_nofollow_verbose(LOG_ERR, node, fs, p->format, MS_NOATIME|MS_NODEV|MS_NOEXEC|MS_NOSUID, NULL) < 0) |
8a794850 LP |
5763 | _exit(EXIT_FAILURE); |
5764 | ||
e57b7020 | 5765 | if (do_copy_files(context, p, fs) < 0) |
8a794850 LP |
5766 | _exit(EXIT_FAILURE); |
5767 | ||
49fb6e97 | 5768 | if (do_make_directories(p, fs) < 0) |
d83d8048 LP |
5769 | _exit(EXIT_FAILURE); |
5770 | ||
c64ddefd DDM |
5771 | if (do_make_symlinks(p, fs) < 0) |
5772 | _exit(EXIT_FAILURE); | |
5773 | ||
562881c1 DDM |
5774 | if (make_subvolumes_read_only(p, fs) < 0) |
5775 | _exit(EXIT_FAILURE); | |
5776 | ||
3799fa80 DDM |
5777 | if (set_default_subvolume(p, fs) < 0) |
5778 | _exit(EXIT_FAILURE); | |
5779 | ||
8a794850 LP |
5780 | r = syncfs_path(AT_FDCWD, fs); |
5781 | if (r < 0) { | |
5782 | log_error_errno(r, "Failed to synchronize written files: %m"); | |
5783 | _exit(EXIT_FAILURE); | |
5784 | } | |
5785 | ||
5786 | _exit(EXIT_SUCCESS); | |
5787 | } | |
5788 | ||
b24bfd6e | 5789 | log_info("Successfully populated %s filesystem.", p->format); |
8a794850 LP |
5790 | return 0; |
5791 | } | |
5792 | ||
eca3d07d | 5793 | static int finalize_extra_mkfs_options(const Partition *p, const char *root, char ***ret) { |
eca3d07d | 5794 | _cleanup_strv_free_ char **sv = NULL; |
562881c1 | 5795 | int r; |
eca3d07d DDM |
5796 | |
5797 | assert(p); | |
5798 | assert(ret); | |
5799 | ||
5800 | r = mkfs_options_from_env("REPART", p->format, &sv); | |
5801 | if (r < 0) | |
5802 | return log_error_errno(r, | |
5803 | "Failed to determine mkfs command line options for '%s': %m", | |
5804 | p->format); | |
5805 | ||
eca3d07d DDM |
5806 | *ret = TAKE_PTR(sv); |
5807 | return 0; | |
5808 | } | |
5809 | ||
53171c04 | 5810 | static int context_mkfs(Context *context) { |
a64769d6 | 5811 | int r; |
53171c04 LP |
5812 | |
5813 | assert(context); | |
5814 | ||
5815 | /* Make a file system */ | |
5816 | ||
5817 | LIST_FOREACH(partitions, p, context->partitions) { | |
e59678b2 | 5818 | _cleanup_(rm_rf_physical_and_freep) char *root = NULL; |
a64769d6 | 5819 | _cleanup_(partition_target_freep) PartitionTarget *t = NULL; |
4b8ce14f | 5820 | _cleanup_strv_free_ char **extra_mkfs_options = NULL; |
53171c04 LP |
5821 | |
5822 | if (p->dropped) | |
5823 | continue; | |
5824 | ||
5825 | if (PARTITION_EXISTS(p)) /* Never format existing partitions */ | |
5826 | continue; | |
5827 | ||
5828 | if (!p->format) | |
5829 | continue; | |
5830 | ||
a954b427 | 5831 | /* Minimized partitions will use the copy blocks logic so skip those here. */ |
c4a87b76 DDM |
5832 | if (p->copy_blocks_fd >= 0) |
5833 | continue; | |
5834 | ||
c74d50ff | 5835 | if (partition_type_defer(&p->type)) |
81d1098b DDM |
5836 | continue; |
5837 | ||
53171c04 LP |
5838 | assert(p->offset != UINT64_MAX); |
5839 | assert(p->new_size != UINT64_MAX); | |
48a09a8f | 5840 | assert(p->new_size >= (p->encrypt != ENCRYPT_OFF ? LUKS2_METADATA_KEEP_FREE : 0)); |
53171c04 | 5841 | |
a954b427 | 5842 | /* If we're doing encryption, keep free space at the end which is required |
a64769d6 DDM |
5843 | * for cryptsetup's offline encryption. */ |
5844 | r = partition_target_prepare(context, p, | |
5845 | p->new_size - (p->encrypt != ENCRYPT_OFF ? LUKS2_METADATA_KEEP_FREE : 0), | |
5846 | /*need_path=*/ true, | |
5847 | &t); | |
53171c04 | 5848 | if (r < 0) |
a64769d6 | 5849 | return r; |
53171c04 | 5850 | |
a09ae915 DDM |
5851 | if (p->encrypt != ENCRYPT_OFF && t->loop) { |
5852 | r = partition_target_grow(t, p->new_size); | |
5853 | if (r < 0) | |
5854 | return r; | |
5855 | ||
5856 | r = partition_encrypt(context, p, t, /* offline = */ false); | |
5857 | if (r < 0) | |
5858 | return log_error_errno(r, "Failed to encrypt device: %m"); | |
5859 | } | |
5860 | ||
53171c04 LP |
5861 | log_info("Formatting future partition %" PRIu64 ".", p->partno); |
5862 | ||
d3201eb4 DDM |
5863 | /* If we're not writing to a loop device or if we're populating a read-only filesystem, we |
5864 | * have to populate using the filesystem's mkfs's --root (or equivalent) option. To do that, | |
5865 | * we need to set up the final directory tree beforehand. */ | |
5866 | ||
5867 | if (partition_needs_populate(p) && (!t->loop || fstype_is_ro(p->format))) { | |
5868 | if (!mkfs_supports_root_option(p->format)) | |
5869 | return log_error_errno(SYNTHETIC_ERRNO(ENODEV), | |
5870 | "Loop device access is required to populate %s filesystems.", | |
5871 | p->format); | |
95bfd3cd | 5872 | |
e57b7020 | 5873 | r = partition_populate_directory(context, p, &root); |
143c3c08 DDM |
5874 | if (r < 0) |
5875 | return r; | |
5876 | } | |
95bfd3cd | 5877 | |
eca3d07d | 5878 | r = finalize_extra_mkfs_options(p, root, &extra_mkfs_options); |
4b8ce14f | 5879 | if (r < 0) |
eca3d07d | 5880 | return r; |
4b8ce14f | 5881 | |
a64769d6 | 5882 | r = make_filesystem(partition_target_path(t), p->format, strempty(p->new_label), root, |
93f125a6 | 5883 | p->fs_uuid, arg_discard, /* quiet = */ false, |
27cacec9 DDM |
5884 | context->fs_sector_size, p->compression, p->compression_level, |
5885 | extra_mkfs_options); | |
48a09a8f | 5886 | if (r < 0) |
53171c04 LP |
5887 | return r; |
5888 | ||
0122c7d0 | 5889 | /* The mkfs binary we invoked might have removed our temporary file when we're not operating |
a954b427 ZJS |
5890 | * on a loop device, so open the file again to make sure our file descriptor points to actual |
5891 | * new file. */ | |
0122c7d0 DDM |
5892 | |
5893 | if (t->fd >= 0 && t->path && !t->loop) { | |
5894 | safe_close(t->fd); | |
5895 | t->fd = open(t->path, O_RDWR|O_CLOEXEC); | |
5896 | if (t->fd < 0) | |
5897 | return log_error_errno(errno, "Failed to reopen temporary file: %m"); | |
5898 | } | |
5899 | ||
53171c04 LP |
5900 | log_info("Successfully formatted future partition %" PRIu64 ".", p->partno); |
5901 | ||
d3201eb4 DDM |
5902 | /* If we're writing to a loop device, we can now mount the empty filesystem and populate it. */ |
5903 | if (partition_needs_populate(p) && !root) { | |
5904 | assert(t->loop); | |
5905 | ||
a09ae915 | 5906 | r = partition_populate_filesystem(context, p, partition_target_path(t)); |
48a09a8f | 5907 | if (r < 0) |
143c3c08 | 5908 | return r; |
b9df3536 LP |
5909 | } |
5910 | ||
a09ae915 | 5911 | if (p->encrypt != ENCRYPT_OFF && !t->loop) { |
a64769d6 | 5912 | r = partition_target_grow(t, p->new_size); |
b9df3536 | 5913 | if (r < 0) |
a64769d6 | 5914 | return r; |
b9df3536 | 5915 | |
a09ae915 | 5916 | r = partition_encrypt(context, p, t, /* offline = */ true); |
48a09a8f DDM |
5917 | if (r < 0) |
5918 | return log_error_errno(r, "Failed to encrypt device: %m"); | |
b9df3536 | 5919 | } |
8a794850 | 5920 | |
48a09a8f DDM |
5921 | /* Note that we always sync explicitly here, since mkfs.fat doesn't do that on its own, and |
5922 | * if we don't sync before detaching a block device the in-flight sectors possibly won't hit | |
5923 | * the disk. */ | |
5924 | ||
a64769d6 | 5925 | r = partition_target_sync(context, p, t); |
53171c04 | 5926 | if (r < 0) |
a64769d6 | 5927 | return r; |
b5b7879a | 5928 | |
c74d50ff | 5929 | if (p->siblings[VERITY_HASH] && !partition_type_defer(&p->siblings[VERITY_HASH]->type)) { |
a64769d6 | 5930 | r = partition_format_verity_hash(context, p->siblings[VERITY_HASH], |
13bde177 | 5931 | /* node = */ NULL, partition_target_path(t)); |
2b392d86 DDM |
5932 | if (r < 0) |
5933 | return r; | |
b5b7879a | 5934 | } |
4ecd39c5 | 5935 | |
c74d50ff | 5936 | if (p->siblings[VERITY_SIG] && !partition_type_defer(&p->siblings[VERITY_SIG]->type)) { |
4ecd39c5 DDM |
5937 | r = partition_format_verity_sig(context, p->siblings[VERITY_SIG]); |
5938 | if (r < 0) | |
5939 | return r; | |
5940 | } | |
b5b7879a DDM |
5941 | } |
5942 | ||
5943 | return 0; | |
5944 | } | |
5945 | ||
b456191d DDM |
5946 | static int parse_x509_certificate(const char *certificate, size_t certificate_size, X509 **ret) { |
5947 | #if HAVE_OPENSSL | |
5948 | _cleanup_(X509_freep) X509 *cert = NULL; | |
5949 | _cleanup_(BIO_freep) BIO *cb = NULL; | |
5950 | ||
5951 | assert(certificate); | |
5952 | assert(certificate_size > 0); | |
5953 | assert(ret); | |
5954 | ||
5955 | cb = BIO_new_mem_buf(certificate, certificate_size); | |
5956 | if (!cb) | |
5957 | return log_oom(); | |
5958 | ||
5959 | cert = PEM_read_bio_X509(cb, NULL, NULL, NULL); | |
5960 | if (!cert) | |
5961 | return log_error_errno(SYNTHETIC_ERRNO(EBADMSG), "Failed to parse X.509 certificate: %s", | |
5962 | ERR_error_string(ERR_get_error(), NULL)); | |
5963 | ||
5964 | if (ret) | |
5965 | *ret = TAKE_PTR(cert); | |
5966 | ||
5967 | return 0; | |
5968 | #else | |
968d232d | 5969 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "OpenSSL is not supported, cannot parse X509 certificate."); |
b456191d DDM |
5970 | #endif |
5971 | } | |
5972 | ||
5973 | static int parse_private_key(const char *key, size_t key_size, EVP_PKEY **ret) { | |
5974 | #if HAVE_OPENSSL | |
5975 | _cleanup_(BIO_freep) BIO *kb = NULL; | |
5976 | _cleanup_(EVP_PKEY_freep) EVP_PKEY *pk = NULL; | |
5977 | ||
5978 | assert(key); | |
5979 | assert(key_size > 0); | |
5980 | assert(ret); | |
5981 | ||
5982 | kb = BIO_new_mem_buf(key, key_size); | |
5983 | if (!kb) | |
5984 | return log_oom(); | |
5985 | ||
5986 | pk = PEM_read_bio_PrivateKey(kb, NULL, NULL, NULL); | |
5987 | if (!pk) | |
5988 | return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to parse PEM private key: %s", | |
5989 | ERR_error_string(ERR_get_error(), NULL)); | |
5990 | ||
5991 | if (ret) | |
5992 | *ret = TAKE_PTR(pk); | |
5993 | ||
5994 | return 0; | |
5995 | #else | |
968d232d | 5996 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "OpenSSL is not supported, cannot parse private key."); |
b456191d DDM |
5997 | #endif |
5998 | } | |
5999 | ||
e594a3b1 LP |
6000 | static int partition_acquire_uuid(Context *context, Partition *p, sd_id128_t *ret) { |
6001 | struct { | |
6002 | sd_id128_t type_uuid; | |
6003 | uint64_t counter; | |
695cfd53 | 6004 | } _packed_ plaintext = {}; |
e594a3b1 | 6005 | union { |
ade99252 | 6006 | uint8_t md[SHA256_DIGEST_SIZE]; |
e594a3b1 LP |
6007 | sd_id128_t id; |
6008 | } result; | |
6009 | ||
6010 | uint64_t k = 0; | |
e594a3b1 LP |
6011 | int r; |
6012 | ||
6013 | assert(context); | |
6014 | assert(p); | |
6015 | assert(ret); | |
6016 | ||
6017 | /* Calculate a good UUID for the indicated partition. We want a certain degree of reproducibility, | |
6018 | * hence we won't generate the UUIDs randomly. Instead we use a cryptographic hash (precisely: | |
6019 | * HMAC-SHA256) to derive them from a single seed. The seed is generally the machine ID of the | |
6020 | * installation we are processing, but if random behaviour is desired can be random, too. We use the | |
6021 | * seed value as key for the HMAC (since the machine ID is something we generally don't want to leak) | |
6022 | * and the partition type as plaintext. The partition type is suffixed with a counter (only for the | |
6023 | * second and later partition of the same type) if we have more than one partition of the same | |
6024 | * time. Or in other words: | |
6025 | * | |
6026 | * With: | |
6027 | * SEED := /etc/machine-id | |
6028 | * | |
6029 | * If first partition instance of type TYPE_UUID: | |
6030 | * PARTITION_UUID := HMAC-SHA256(SEED, TYPE_UUID) | |
6031 | * | |
6032 | * For all later partition instances of type TYPE_UUID with INSTANCE being the LE64 encoded instance number: | |
6033 | * PARTITION_UUID := HMAC-SHA256(SEED, TYPE_UUID || INSTANCE) | |
6034 | */ | |
6035 | ||
6036 | LIST_FOREACH(partitions, q, context->partitions) { | |
6037 | if (p == q) | |
6038 | break; | |
6039 | ||
22e932f4 | 6040 | if (!sd_id128_equal(p->type.uuid, q->type.uuid)) |
e594a3b1 LP |
6041 | continue; |
6042 | ||
6043 | k++; | |
6044 | } | |
6045 | ||
22e932f4 | 6046 | plaintext.type_uuid = p->type.uuid; |
e594a3b1 LP |
6047 | plaintext.counter = htole64(k); |
6048 | ||
ade99252 KK |
6049 | hmac_sha256(context->seed.bytes, sizeof(context->seed.bytes), |
6050 | &plaintext, | |
6051 | k == 0 ? sizeof(sd_id128_t) : sizeof(plaintext), | |
6052 | result.md); | |
e594a3b1 LP |
6053 | |
6054 | /* Take the first half, mark it as v4 UUID */ | |
6055 | assert_cc(sizeof(result.md) == sizeof(result.id) * 2); | |
6056 | result.id = id128_make_v4_uuid(result.id); | |
6057 | ||
6058 | /* Ensure this partition UUID is actually unique, and there's no remaining partition from an earlier run? */ | |
6059 | LIST_FOREACH(partitions, q, context->partitions) { | |
6060 | if (p == q) | |
6061 | continue; | |
6062 | ||
580f48cc | 6063 | if (sd_id128_in_set(result.id, q->current_uuid, q->new_uuid)) { |
da1af43d | 6064 | log_warning("Partition UUID calculated from seed for partition %" PRIu64 " already used, reverting to randomized UUID.", p->partno); |
e594a3b1 LP |
6065 | |
6066 | r = sd_id128_randomize(&result.id); | |
6067 | if (r < 0) | |
6068 | return log_error_errno(r, "Failed to generate randomized UUID: %m"); | |
6069 | ||
6070 | break; | |
6071 | } | |
6072 | } | |
6073 | ||
6074 | *ret = result.id; | |
6075 | return 0; | |
6076 | } | |
6077 | ||
6078 | static int partition_acquire_label(Context *context, Partition *p, char **ret) { | |
6079 | _cleanup_free_ char *label = NULL; | |
6080 | const char *prefix; | |
6081 | unsigned k = 1; | |
6082 | ||
6083 | assert(context); | |
6084 | assert(p); | |
6085 | assert(ret); | |
6086 | ||
22e932f4 | 6087 | prefix = gpt_partition_type_uuid_to_string(p->type.uuid); |
e594a3b1 LP |
6088 | if (!prefix) |
6089 | prefix = "linux"; | |
6090 | ||
6091 | for (;;) { | |
6092 | const char *ll = label ?: prefix; | |
6093 | bool retry = false; | |
e594a3b1 LP |
6094 | |
6095 | LIST_FOREACH(partitions, q, context->partitions) { | |
6096 | if (p == q) | |
6097 | break; | |
6098 | ||
6099 | if (streq_ptr(ll, q->current_label) || | |
6100 | streq_ptr(ll, q->new_label)) { | |
6101 | retry = true; | |
6102 | break; | |
6103 | } | |
6104 | } | |
6105 | ||
6106 | if (!retry) | |
6107 | break; | |
6108 | ||
6109 | label = mfree(label); | |
e594a3b1 LP |
6110 | if (asprintf(&label, "%s-%u", prefix, ++k) < 0) |
6111 | return log_oom(); | |
6112 | } | |
6113 | ||
6114 | if (!label) { | |
6115 | label = strdup(prefix); | |
6116 | if (!label) | |
6117 | return log_oom(); | |
6118 | } | |
6119 | ||
6120 | *ret = TAKE_PTR(label); | |
6121 | return 0; | |
6122 | } | |
6123 | ||
6124 | static int context_acquire_partition_uuids_and_labels(Context *context) { | |
e594a3b1 LP |
6125 | int r; |
6126 | ||
6127 | assert(context); | |
6128 | ||
6129 | LIST_FOREACH(partitions, p, context->partitions) { | |
15cad3a2 DDM |
6130 | sd_id128_t uuid; |
6131 | ||
e594a3b1 LP |
6132 | /* Never touch foreign partitions */ |
6133 | if (PARTITION_IS_FOREIGN(p)) { | |
6134 | p->new_uuid = p->current_uuid; | |
6135 | ||
6136 | if (p->current_label) { | |
78eee6ce LP |
6137 | r = free_and_strdup_warn(&p->new_label, strempty(p->current_label)); |
6138 | if (r < 0) | |
6139 | return r; | |
e594a3b1 LP |
6140 | } |
6141 | ||
6142 | continue; | |
6143 | } | |
6144 | ||
6145 | if (!sd_id128_is_null(p->current_uuid)) | |
15cad3a2 DDM |
6146 | p->new_uuid = uuid = p->current_uuid; /* Never change initialized UUIDs */ |
6147 | else if (p->new_uuid_is_set) | |
6148 | uuid = p->new_uuid; | |
6149 | else { | |
12963533 | 6150 | /* Not explicitly set by user! */ |
15cad3a2 | 6151 | r = partition_acquire_uuid(context, p, &uuid); |
e594a3b1 LP |
6152 | if (r < 0) |
6153 | return r; | |
11749b61 | 6154 | |
15cad3a2 DDM |
6155 | /* The final verity hash/data UUIDs can only be determined after formatting the |
6156 | * verity hash partition. However, we still want to use the generated partition UUID | |
6157 | * to derive other UUIDs to keep things unique and reproducible, so we always | |
6158 | * generate a UUID if none is set, but we only use it as the actual partition UUID if | |
6159 | * verity is not configured. */ | |
6160 | if (!IN_SET(p->verity, VERITY_DATA, VERITY_HASH)) { | |
6161 | p->new_uuid = uuid; | |
6162 | p->new_uuid_is_set = true; | |
6163 | } | |
e594a3b1 LP |
6164 | } |
6165 | ||
8bbbdfd7 DDM |
6166 | /* Calculate the UUID for the file system as HMAC-SHA256 of the string "file-system-uuid", |
6167 | * keyed off the partition UUID. */ | |
15cad3a2 | 6168 | r = derive_uuid(uuid, "file-system-uuid", &p->fs_uuid); |
8bbbdfd7 DDM |
6169 | if (r < 0) |
6170 | return r; | |
6171 | ||
15cad3a2 DDM |
6172 | if (p->encrypt != ENCRYPT_OFF) { |
6173 | r = derive_uuid(uuid, "luks-uuid", &p->luks_uuid); | |
6174 | if (r < 0) | |
6175 | return r; | |
6176 | } | |
6177 | ||
81e04781 VH |
6178 | /* Derive the verity salt and verity superblock UUID from the seed to keep them reproducible */ |
6179 | if (p->verity == VERITY_HASH) { | |
6180 | derive_salt(context->seed, "verity-salt", p->verity_salt); | |
6181 | ||
6182 | r = derive_uuid(context->seed, "verity-uuid", &p->verity_uuid); | |
6183 | if (r < 0) | |
6184 | return log_error_errno(r, "Failed to acquire verity uuid: %m"); | |
6185 | } | |
6186 | ||
e594a3b1 | 6187 | if (!isempty(p->current_label)) { |
78eee6ce LP |
6188 | /* never change initialized labels */ |
6189 | r = free_and_strdup_warn(&p->new_label, p->current_label); | |
6190 | if (r < 0) | |
6191 | return r; | |
12963533 TH |
6192 | } else if (!p->new_label) { |
6193 | /* Not explicitly set by user! */ | |
6194 | ||
e594a3b1 LP |
6195 | r = partition_acquire_label(context, p, &p->new_label); |
6196 | if (r < 0) | |
6197 | return r; | |
6198 | } | |
6199 | } | |
6200 | ||
6201 | return 0; | |
6202 | } | |
6203 | ||
e73309c5 LP |
6204 | static int set_gpt_flags(struct fdisk_partition *q, uint64_t flags) { |
6205 | _cleanup_free_ char *a = NULL; | |
6206 | ||
6207 | for (unsigned i = 0; i < sizeof(flags) * 8; i++) { | |
6208 | uint64_t bit = UINT64_C(1) << i; | |
6209 | char buf[DECIMAL_STR_MAX(unsigned)+1]; | |
6210 | ||
6211 | if (!FLAGS_SET(flags, bit)) | |
6212 | continue; | |
6213 | ||
6214 | xsprintf(buf, "%u", i); | |
6215 | if (!strextend_with_separator(&a, ",", buf)) | |
6216 | return -ENOMEM; | |
6217 | } | |
6218 | ||
6219 | return fdisk_partition_set_attrs(q, a); | |
6220 | } | |
6221 | ||
1c41c1dc LP |
6222 | static uint64_t partition_merge_flags(Partition *p) { |
6223 | uint64_t f; | |
6224 | ||
6225 | assert(p); | |
6226 | ||
6227 | f = p->gpt_flags; | |
6228 | ||
ff0771bf | 6229 | if (p->no_auto >= 0) { |
22e932f4 | 6230 | if (gpt_partition_type_knows_no_auto(p->type)) |
92e72028 | 6231 | SET_FLAG(f, SD_GPT_FLAG_NO_AUTO, p->no_auto); |
ff0771bf | 6232 | else { |
b7416360 | 6233 | char buffer[SD_ID128_UUID_STRING_MAX]; |
ff0771bf LP |
6234 | log_warning("Configured NoAuto=%s for partition type '%s' that doesn't support it, ignoring.", |
6235 | yes_no(p->no_auto), | |
22e932f4 | 6236 | gpt_partition_type_uuid_to_string_harder(p->type.uuid, buffer)); |
ff0771bf LP |
6237 | } |
6238 | } | |
6239 | ||
1c41c1dc | 6240 | if (p->read_only >= 0) { |
22e932f4 | 6241 | if (gpt_partition_type_knows_read_only(p->type)) |
92e72028 | 6242 | SET_FLAG(f, SD_GPT_FLAG_READ_ONLY, p->read_only); |
1c41c1dc | 6243 | else { |
b7416360 | 6244 | char buffer[SD_ID128_UUID_STRING_MAX]; |
1c41c1dc LP |
6245 | log_warning("Configured ReadOnly=%s for partition type '%s' that doesn't support it, ignoring.", |
6246 | yes_no(p->read_only), | |
22e932f4 | 6247 | gpt_partition_type_uuid_to_string_harder(p->type.uuid, buffer)); |
1c41c1dc LP |
6248 | } |
6249 | } | |
6250 | ||
6251 | if (p->growfs >= 0) { | |
22e932f4 | 6252 | if (gpt_partition_type_knows_growfs(p->type)) |
92e72028 | 6253 | SET_FLAG(f, SD_GPT_FLAG_GROWFS, p->growfs); |
1c41c1dc | 6254 | else { |
b7416360 | 6255 | char buffer[SD_ID128_UUID_STRING_MAX]; |
1c41c1dc LP |
6256 | log_warning("Configured GrowFileSystem=%s for partition type '%s' that doesn't support it, ignoring.", |
6257 | yes_no(p->growfs), | |
22e932f4 | 6258 | gpt_partition_type_uuid_to_string_harder(p->type.uuid, buffer)); |
1c41c1dc LP |
6259 | } |
6260 | } | |
6261 | ||
6262 | return f; | |
6263 | } | |
6264 | ||
f28d4f42 | 6265 | static int context_mangle_partitions(Context *context) { |
f28d4f42 | 6266 | int r; |
e594a3b1 LP |
6267 | |
6268 | assert(context); | |
6269 | ||
e594a3b1 LP |
6270 | LIST_FOREACH(partitions, p, context->partitions) { |
6271 | if (p->dropped) | |
6272 | continue; | |
6273 | ||
c74d50ff | 6274 | if (partition_type_defer(&p->type)) |
81d1098b DDM |
6275 | continue; |
6276 | ||
e594a3b1 LP |
6277 | assert(p->new_size != UINT64_MAX); |
6278 | assert(p->offset != UINT64_MAX); | |
6279 | assert(p->partno != UINT64_MAX); | |
6280 | ||
6281 | if (PARTITION_EXISTS(p)) { | |
6282 | bool changed = false; | |
6283 | ||
6284 | assert(p->current_partition); | |
6285 | ||
6286 | if (p->new_size != p->current_size) { | |
6287 | assert(p->new_size >= p->current_size); | |
994b3031 | 6288 | assert(p->new_size % context->sector_size == 0); |
e594a3b1 LP |
6289 | |
6290 | r = fdisk_partition_size_explicit(p->current_partition, true); | |
6291 | if (r < 0) | |
6292 | return log_error_errno(r, "Failed to enable explicit sizing: %m"); | |
6293 | ||
994b3031 | 6294 | r = fdisk_partition_set_size(p->current_partition, p->new_size / context->sector_size); |
e594a3b1 LP |
6295 | if (r < 0) |
6296 | return log_error_errno(r, "Failed to grow partition: %m"); | |
6297 | ||
6298 | log_info("Growing existing partition %" PRIu64 ".", p->partno); | |
6299 | changed = true; | |
6300 | } | |
6301 | ||
6302 | if (!sd_id128_equal(p->new_uuid, p->current_uuid)) { | |
b7416360 | 6303 | r = fdisk_partition_set_uuid(p->current_partition, SD_ID128_TO_UUID_STRING(p->new_uuid)); |
e594a3b1 LP |
6304 | if (r < 0) |
6305 | return log_error_errno(r, "Failed to set partition UUID: %m"); | |
6306 | ||
6307 | log_info("Initializing UUID of existing partition %" PRIu64 ".", p->partno); | |
6308 | changed = true; | |
6309 | } | |
6310 | ||
6311 | if (!streq_ptr(p->new_label, p->current_label)) { | |
be9ce018 | 6312 | r = fdisk_partition_set_name(p->current_partition, strempty(p->new_label)); |
e594a3b1 LP |
6313 | if (r < 0) |
6314 | return log_error_errno(r, "Failed to set partition label: %m"); | |
6315 | ||
6316 | log_info("Setting partition label of existing partition %" PRIu64 ".", p->partno); | |
6317 | changed = true; | |
6318 | } | |
6319 | ||
6320 | if (changed) { | |
6321 | assert(!PARTITION_IS_FOREIGN(p)); /* never touch foreign partitions */ | |
6322 | ||
6323 | r = fdisk_set_partition(context->fdisk_context, p->partno, p->current_partition); | |
6324 | if (r < 0) | |
6325 | return log_error_errno(r, "Failed to update partition: %m"); | |
6326 | } | |
6327 | } else { | |
6328 | _cleanup_(fdisk_unref_partitionp) struct fdisk_partition *q = NULL; | |
6329 | _cleanup_(fdisk_unref_parttypep) struct fdisk_parttype *t = NULL; | |
e594a3b1 LP |
6330 | |
6331 | assert(!p->new_partition); | |
994b3031 LP |
6332 | assert(p->offset % context->sector_size == 0); |
6333 | assert(p->new_size % context->sector_size == 0); | |
be9ce018 | 6334 | assert(p->new_label); |
e594a3b1 LP |
6335 | |
6336 | t = fdisk_new_parttype(); | |
6337 | if (!t) | |
6338 | return log_oom(); | |
6339 | ||
22e932f4 | 6340 | r = fdisk_parttype_set_typestr(t, SD_ID128_TO_UUID_STRING(p->type.uuid)); |
e594a3b1 LP |
6341 | if (r < 0) |
6342 | return log_error_errno(r, "Failed to initialize partition type: %m"); | |
6343 | ||
6344 | q = fdisk_new_partition(); | |
6345 | if (!q) | |
6346 | return log_oom(); | |
6347 | ||
6348 | r = fdisk_partition_set_type(q, t); | |
6349 | if (r < 0) | |
6350 | return log_error_errno(r, "Failed to set partition type: %m"); | |
6351 | ||
6352 | r = fdisk_partition_size_explicit(q, true); | |
6353 | if (r < 0) | |
6354 | return log_error_errno(r, "Failed to enable explicit sizing: %m"); | |
6355 | ||
994b3031 | 6356 | r = fdisk_partition_set_start(q, p->offset / context->sector_size); |
e594a3b1 LP |
6357 | if (r < 0) |
6358 | return log_error_errno(r, "Failed to position partition: %m"); | |
6359 | ||
994b3031 | 6360 | r = fdisk_partition_set_size(q, p->new_size / context->sector_size); |
e594a3b1 LP |
6361 | if (r < 0) |
6362 | return log_error_errno(r, "Failed to grow partition: %m"); | |
6363 | ||
6364 | r = fdisk_partition_set_partno(q, p->partno); | |
6365 | if (r < 0) | |
6366 | return log_error_errno(r, "Failed to set partition number: %m"); | |
6367 | ||
b7416360 | 6368 | r = fdisk_partition_set_uuid(q, SD_ID128_TO_UUID_STRING(p->new_uuid)); |
e594a3b1 LP |
6369 | if (r < 0) |
6370 | return log_error_errno(r, "Failed to set partition UUID: %m"); | |
6371 | ||
be9ce018 | 6372 | r = fdisk_partition_set_name(q, strempty(p->new_label)); |
e594a3b1 LP |
6373 | if (r < 0) |
6374 | return log_error_errno(r, "Failed to set partition label: %m"); | |
6375 | ||
ff0771bf | 6376 | /* Merge the no auto + read only + growfs setting with the literal flags, and set them for the partition */ |
1c41c1dc | 6377 | r = set_gpt_flags(q, partition_merge_flags(p)); |
e73309c5 LP |
6378 | if (r < 0) |
6379 | return log_error_errno(r, "Failed to set GPT partition flags: %m"); | |
6380 | ||
5b5109e2 | 6381 | log_info("Adding new partition %" PRIu64 " to partition table.", p->partno); |
e594a3b1 LP |
6382 | |
6383 | r = fdisk_add_partition(context->fdisk_context, q, NULL); | |
6384 | if (r < 0) | |
6385 | return log_error_errno(r, "Failed to add partition: %m"); | |
6386 | ||
6387 | assert(!p->new_partition); | |
6388 | p->new_partition = TAKE_PTR(q); | |
6389 | } | |
6390 | } | |
6391 | ||
f28d4f42 LP |
6392 | return 0; |
6393 | } | |
6394 | ||
62108348 | 6395 | static int split_name_printf(Partition *p, char **ret) { |
4cee8333 DDM |
6396 | assert(p); |
6397 | ||
6398 | const Specifier table[] = { | |
22e932f4 DDM |
6399 | { 't', specifier_string, GPT_PARTITION_TYPE_UUID_TO_STRING_HARDER(p->type.uuid) }, |
6400 | { 'T', specifier_id128, &p->type.uuid }, | |
4cee8333 DDM |
6401 | { 'U', specifier_id128, &p->new_uuid }, |
6402 | { 'n', specifier_uint64, &p->partno }, | |
6403 | ||
6404 | COMMON_SYSTEM_SPECIFIERS, | |
6405 | {} | |
6406 | }; | |
6407 | ||
62108348 | 6408 | return specifier_printf(p->split_name_format, NAME_MAX, table, arg_root, p, ret); |
4cee8333 DDM |
6409 | } |
6410 | ||
62108348 DDM |
6411 | static int split_node(const char *node, char **ret_base, char **ret_ext) { |
6412 | _cleanup_free_ char *base = NULL, *ext = NULL; | |
6413 | char *e; | |
6414 | int r; | |
6415 | ||
6416 | assert(node); | |
6417 | assert(ret_base); | |
6418 | assert(ret_ext); | |
6419 | ||
6420 | r = path_extract_filename(node, &base); | |
6421 | if (r == O_DIRECTORY || r == -EADDRNOTAVAIL) | |
6422 | return log_error_errno(r, "Device node %s cannot be a directory", node); | |
6423 | if (r < 0) | |
6424 | return log_error_errno(r, "Failed to extract filename from %s: %m", node); | |
6425 | ||
6426 | e = endswith(base, ".raw"); | |
6427 | if (e) { | |
6428 | ext = strdup(e); | |
6429 | if (!ext) | |
6430 | return log_oom(); | |
6431 | ||
6432 | *e = 0; | |
6433 | } | |
6434 | ||
6435 | *ret_base = TAKE_PTR(base); | |
6436 | *ret_ext = TAKE_PTR(ext); | |
6437 | ||
6438 | return 0; | |
4cee8333 DDM |
6439 | } |
6440 | ||
6441 | static int split_name_resolve(Context *context) { | |
62108348 | 6442 | _cleanup_free_ char *parent = NULL, *base = NULL, *ext = NULL; |
4cee8333 DDM |
6443 | int r; |
6444 | ||
62108348 | 6445 | assert(context); |
62108348 | 6446 | |
cc751c75 | 6447 | r = path_extract_directory(context->node, &parent); |
62108348 | 6448 | if (r < 0 && r != -EDESTADDRREQ) |
cc751c75 | 6449 | return log_error_errno(r, "Failed to extract directory from %s: %m", context->node); |
62108348 | 6450 | |
cc751c75 | 6451 | r = split_node(context->node, &base, &ext); |
62108348 DDM |
6452 | if (r < 0) |
6453 | return r; | |
6454 | ||
4cee8333 | 6455 | LIST_FOREACH(partitions, p, context->partitions) { |
62108348 DDM |
6456 | _cleanup_free_ char *resolved = NULL; |
6457 | ||
4cee8333 DDM |
6458 | if (p->dropped) |
6459 | continue; | |
6460 | ||
6461 | if (!p->split_name_format) | |
6462 | continue; | |
6463 | ||
62108348 | 6464 | r = split_name_printf(p, &resolved); |
4cee8333 DDM |
6465 | if (r < 0) |
6466 | return log_error_errno(r, "Failed to resolve specifiers in %s: %m", p->split_name_format); | |
62108348 DDM |
6467 | |
6468 | if (parent) | |
6469 | p->split_path = strjoin(parent, "/", base, ".", resolved, ext); | |
6470 | else | |
6471 | p->split_path = strjoin(base, ".", resolved, ext); | |
6472 | if (!p->split_path) | |
6473 | return log_oom(); | |
4cee8333 DDM |
6474 | } |
6475 | ||
6476 | LIST_FOREACH(partitions, p, context->partitions) { | |
62108348 | 6477 | if (!p->split_path) |
4cee8333 DDM |
6478 | continue; |
6479 | ||
6480 | LIST_FOREACH(partitions, q, context->partitions) { | |
6481 | if (p == q) | |
6482 | continue; | |
6483 | ||
62108348 | 6484 | if (!q->split_path) |
4cee8333 DDM |
6485 | continue; |
6486 | ||
62108348 | 6487 | if (!streq(p->split_path, q->split_path)) |
4cee8333 DDM |
6488 | continue; |
6489 | ||
6490 | return log_error_errno(SYNTHETIC_ERRNO(ENOTUNIQ), | |
4e494e6a | 6491 | "%s and %s have the same resolved split name \"%s\", refusing.", |
62108348 | 6492 | p->definition_path, q->definition_path, p->split_path); |
4cee8333 DDM |
6493 | } |
6494 | } | |
6495 | ||
6496 | return 0; | |
6497 | } | |
6498 | ||
4cee8333 | 6499 | static int context_split(Context *context) { |
b9c0b6c0 | 6500 | unsigned attrs = 0; |
254d1313 | 6501 | int fd = -EBADF, r; |
4cee8333 DDM |
6502 | |
6503 | if (!arg_split) | |
6504 | return 0; | |
6505 | ||
6506 | assert(context); | |
4cee8333 DDM |
6507 | |
6508 | /* We can't do resolution earlier because the partition UUIDs for verity partitions are only filled | |
6509 | * in after they've been generated. */ | |
6510 | ||
6511 | r = split_name_resolve(context); | |
6512 | if (r < 0) | |
6513 | return r; | |
6514 | ||
4cee8333 | 6515 | LIST_FOREACH(partitions, p, context->partitions) { |
254d1313 | 6516 | _cleanup_close_ int fdt = -EBADF; |
4cee8333 DDM |
6517 | |
6518 | if (p->dropped) | |
6519 | continue; | |
6520 | ||
62108348 | 6521 | if (!p->split_path) |
4cee8333 DDM |
6522 | continue; |
6523 | ||
c74d50ff | 6524 | if (partition_type_defer(&p->type)) |
81d1098b DDM |
6525 | continue; |
6526 | ||
b9c0b6c0 DDM |
6527 | if (fd < 0) { |
6528 | assert_se((fd = fdisk_get_devfd(context->fdisk_context)) >= 0); | |
6529 | ||
6530 | r = read_attr_fd(fd, &attrs); | |
6531 | if (r < 0 && !ERRNO_IS_NEG_NOT_SUPPORTED(r)) | |
6532 | return log_error_errno(r, "Failed to read file attributes of %s: %m", arg_node); | |
6533 | } | |
6534 | ||
6535 | fdt = xopenat_full( | |
6536 | AT_FDCWD, | |
6537 | p->split_path, | |
6538 | O_WRONLY|O_NOCTTY|O_CLOEXEC|O_NOFOLLOW|O_CREAT|O_EXCL, | |
6539 | attrs & FS_NOCOW_FL ? XO_NOCOW : 0, | |
6540 | 0666); | |
4cee8333 | 6541 | if (fdt < 0) |
62108348 | 6542 | return log_error_errno(fdt, "Failed to open split partition file %s: %m", p->split_path); |
4cee8333 | 6543 | |
4cee8333 DDM |
6544 | if (lseek(fd, p->offset, SEEK_SET) < 0) |
6545 | return log_error_errno(errno, "Failed to seek to partition offset: %m"); | |
6546 | ||
ab645e0a | 6547 | r = copy_bytes(fd, fdt, p->new_size, COPY_REFLINK|COPY_HOLES|COPY_TRUNCATE); |
4cee8333 | 6548 | if (r < 0) |
62108348 | 6549 | return log_error_errno(r, "Failed to copy to split partition %s: %m", p->split_path); |
4cee8333 DDM |
6550 | } |
6551 | ||
6552 | return 0; | |
6553 | } | |
6554 | ||
cc751c75 | 6555 | static int context_write_partition_table(Context *context) { |
f28d4f42 LP |
6556 | _cleanup_(fdisk_unref_tablep) struct fdisk_table *original_table = NULL; |
6557 | int capable, r; | |
6558 | ||
6559 | assert(context); | |
6560 | ||
cc751c75 | 6561 | if (!context->from_scratch && !context_changed(context)) { |
f28d4f42 LP |
6562 | log_info("No changes."); |
6563 | return 0; | |
6564 | } | |
6565 | ||
6566 | if (arg_dry_run) { | |
6567 | log_notice("Refusing to repartition, please re-run with --dry-run=no."); | |
6568 | return 0; | |
6569 | } | |
6570 | ||
acdf6bcf | 6571 | log_info("Applying changes to %s.", context->node); |
f28d4f42 | 6572 | |
19c58989 LP |
6573 | if (context->from_scratch && arg_empty != EMPTY_CREATE) { |
6574 | /* Erase everything if we operate from scratch, except if the image was just created anyway, and thus is definitely empty. */ | |
81873a6b LP |
6575 | r = context_wipe_range(context, 0, context->total); |
6576 | if (r < 0) | |
6577 | return r; | |
6578 | ||
6579 | log_info("Wiped block device."); | |
6580 | ||
0dce448b LB |
6581 | if (arg_discard) { |
6582 | r = context_discard_range(context, 0, context->total); | |
6583 | if (r == -EOPNOTSUPP) | |
6584 | log_info("Storage does not support discard, not discarding entire block device data."); | |
6585 | else if (r < 0) | |
6586 | return log_error_errno(r, "Failed to discard entire block device: %m"); | |
6587 | else if (r > 0) | |
6588 | log_info("Discarded entire block device."); | |
6589 | } | |
f28d4f42 LP |
6590 | } |
6591 | ||
6592 | r = fdisk_get_partitions(context->fdisk_context, &original_table); | |
6593 | if (r < 0) | |
6594 | return log_error_errno(r, "Failed to acquire partition table: %m"); | |
6595 | ||
6596 | /* Wipe fs signatures and discard sectors where the new partitions are going to be placed and in the | |
6597 | * gaps between partitions, just to be sure. */ | |
cc751c75 | 6598 | r = context_wipe_and_discard(context); |
f28d4f42 LP |
6599 | if (r < 0) |
6600 | return r; | |
6601 | ||
6602 | r = context_copy_blocks(context); | |
6603 | if (r < 0) | |
6604 | return r; | |
6605 | ||
6606 | r = context_mkfs(context); | |
6607 | if (r < 0) | |
6608 | return r; | |
6609 | ||
6610 | r = context_mangle_partitions(context); | |
6611 | if (r < 0) | |
6612 | return r; | |
6613 | ||
e594a3b1 LP |
6614 | log_info("Writing new partition table."); |
6615 | ||
6616 | r = fdisk_write_disklabel(context->fdisk_context); | |
6617 | if (r < 0) | |
6618 | return log_error_errno(r, "Failed to write partition table: %m"); | |
6619 | ||
bff5d2fd | 6620 | capable = blockdev_partscan_enabled_fd(fdisk_get_devfd(context->fdisk_context)); |
9a1deb85 LP |
6621 | if (capable == -ENOTBLK) |
6622 | log_debug("Not telling kernel to reread partition table, since we are not operating on a block device."); | |
6623 | else if (capable < 0) | |
911ba624 | 6624 | return log_error_errno(capable, "Failed to check if block device supports partition scanning: %m"); |
9a1deb85 | 6625 | else if (capable > 0) { |
e594a3b1 LP |
6626 | log_info("Telling kernel to reread partition table."); |
6627 | ||
cc751c75 | 6628 | if (context->from_scratch) |
e594a3b1 LP |
6629 | r = fdisk_reread_partition_table(context->fdisk_context); |
6630 | else | |
6631 | r = fdisk_reread_changes(context->fdisk_context, original_table); | |
6632 | if (r < 0) | |
6633 | return log_error_errno(r, "Failed to reread partition table: %m"); | |
6634 | } else | |
6635 | log_notice("Not telling kernel to reread partition table, because selected image does not support kernel partition block devices."); | |
6636 | ||
6637 | log_info("All done."); | |
6638 | ||
6639 | return 0; | |
6640 | } | |
6641 | ||
6642 | static int context_read_seed(Context *context, const char *root) { | |
6643 | int r; | |
6644 | ||
6645 | assert(context); | |
6646 | ||
6647 | if (!sd_id128_is_null(context->seed)) | |
6648 | return 0; | |
6649 | ||
6650 | if (!arg_randomize) { | |
5ee37b70 YW |
6651 | r = id128_get_machine(root, &context->seed); |
6652 | if (r >= 0) | |
6653 | return 0; | |
e594a3b1 | 6654 | |
5ee37b70 YW |
6655 | if (!ERRNO_IS_MACHINE_ID_UNSET(r)) |
6656 | return log_error_errno(r, "Failed to parse machine ID of image: %m"); | |
74e795ee | 6657 | |
5ee37b70 | 6658 | log_info("No machine ID set, using randomized partition UUIDs."); |
e594a3b1 LP |
6659 | } |
6660 | ||
6661 | r = sd_id128_randomize(&context->seed); | |
6662 | if (r < 0) | |
6663 | return log_error_errno(r, "Failed to generate randomized seed: %m"); | |
6664 | ||
6665 | return 0; | |
6666 | } | |
6667 | ||
cc751c75 | 6668 | static int context_factory_reset(Context *context) { |
e594a3b1 LP |
6669 | size_t n = 0; |
6670 | int r; | |
6671 | ||
6672 | assert(context); | |
6673 | ||
6674 | if (arg_factory_reset <= 0) | |
6675 | return 0; | |
6676 | ||
cc751c75 | 6677 | if (context->from_scratch) /* Nothing to reset if we start from scratch */ |
e594a3b1 LP |
6678 | return 0; |
6679 | ||
6680 | if (arg_dry_run) { | |
6681 | log_notice("Refusing to factory reset, please re-run with --dry-run=no."); | |
6682 | return 0; | |
6683 | } | |
6684 | ||
6685 | log_info("Applying factory reset."); | |
6686 | ||
6687 | LIST_FOREACH(partitions, p, context->partitions) { | |
6688 | ||
6689 | if (!p->factory_reset || !PARTITION_EXISTS(p)) | |
6690 | continue; | |
6691 | ||
6692 | assert(p->partno != UINT64_MAX); | |
6693 | ||
6694 | log_info("Removing partition %" PRIu64 " for factory reset.", p->partno); | |
6695 | ||
6696 | r = fdisk_delete_partition(context->fdisk_context, p->partno); | |
6697 | if (r < 0) | |
6698 | return log_error_errno(r, "Failed to remove partition %" PRIu64 ": %m", p->partno); | |
6699 | ||
6700 | n++; | |
6701 | } | |
6702 | ||
6703 | if (n == 0) { | |
6704 | log_info("Factory reset requested, but no partitions to delete found."); | |
6705 | return 0; | |
6706 | } | |
6707 | ||
6708 | r = fdisk_write_disklabel(context->fdisk_context); | |
6709 | if (r < 0) | |
6710 | return log_error_errno(r, "Failed to write disk label: %m"); | |
6711 | ||
6712 | log_info("Successfully deleted %zu partitions.", n); | |
6713 | return 1; | |
6714 | } | |
6715 | ||
6716 | static int context_can_factory_reset(Context *context) { | |
e594a3b1 LP |
6717 | assert(context); |
6718 | ||
6719 | LIST_FOREACH(partitions, p, context->partitions) | |
6720 | if (p->factory_reset && PARTITION_EXISTS(p)) | |
6721 | return true; | |
6722 | ||
6723 | return false; | |
6724 | } | |
6725 | ||
5c08da58 LP |
6726 | static int resolve_copy_blocks_auto_candidate( |
6727 | dev_t partition_devno, | |
22e932f4 | 6728 | GptPartitionType partition_type, |
5c08da58 LP |
6729 | dev_t restrict_devno, |
6730 | sd_id128_t *ret_uuid) { | |
6731 | ||
6732 | _cleanup_(blkid_free_probep) blkid_probe b = NULL; | |
254d1313 | 6733 | _cleanup_close_ int fd = -EBADF; |
ca822829 YW |
6734 | _cleanup_free_ char *p = NULL; |
6735 | const char *pttype, *t; | |
5c08da58 LP |
6736 | sd_id128_t pt_parsed, u; |
6737 | blkid_partition pp; | |
6738 | dev_t whole_devno; | |
6739 | blkid_partlist pl; | |
5c08da58 LP |
6740 | int r; |
6741 | ||
6742 | /* Checks if the specified partition has the specified GPT type UUID, and is located on the specified | |
6743 | * 'restrict_devno' device. The type check is particularly relevant if we have Verity volume which is | |
6744 | * backed by two separate partitions: the data and the hash partitions, and we need to find the right | |
6745 | * one of the two. */ | |
6746 | ||
6747 | r = block_get_whole_disk(partition_devno, &whole_devno); | |
6748 | if (r < 0) | |
6749 | return log_error_errno( | |
6750 | r, | |
6751 | "Unable to determine containing block device of partition %u:%u: %m", | |
6752 | major(partition_devno), minor(partition_devno)); | |
6753 | ||
6754 | if (restrict_devno != (dev_t) -1 && | |
6755 | restrict_devno != whole_devno) | |
6756 | return log_error_errno( | |
6757 | SYNTHETIC_ERRNO(EPERM), | |
6758 | "Partition %u:%u is located outside of block device %u:%u, refusing.", | |
6759 | major(partition_devno), minor(partition_devno), | |
6760 | major(restrict_devno), minor(restrict_devno)); | |
6761 | ||
ca822829 | 6762 | fd = r = device_open_from_devnum(S_IFBLK, whole_devno, O_RDONLY|O_CLOEXEC|O_NONBLOCK, &p); |
5c08da58 | 6763 | if (r < 0) |
ca822829 YW |
6764 | return log_error_errno(r, "Failed to open block device " DEVNUM_FORMAT_STR ": %m", |
6765 | DEVNUM_FORMAT_VAL(whole_devno)); | |
5c08da58 LP |
6766 | |
6767 | b = blkid_new_probe(); | |
6768 | if (!b) | |
6769 | return log_oom(); | |
6770 | ||
6771 | errno = 0; | |
6772 | r = blkid_probe_set_device(b, fd, 0, 0); | |
6773 | if (r != 0) | |
6774 | return log_error_errno(errno_or_else(ENOMEM), "Failed to open block device '%s': %m", p); | |
6775 | ||
6776 | (void) blkid_probe_enable_partitions(b, 1); | |
6777 | (void) blkid_probe_set_partitions_flags(b, BLKID_PARTS_ENTRY_DETAILS); | |
6778 | ||
6779 | errno = 0; | |
6780 | r = blkid_do_safeprobe(b); | |
2e3944b8 LP |
6781 | if (r == _BLKID_SAFEPROBE_ERROR) |
6782 | return log_error_errno(errno_or_else(EIO), "Unable to probe for partition table of '%s': %m", p); | |
6783 | if (IN_SET(r, _BLKID_SAFEPROBE_AMBIGUOUS, _BLKID_SAFEPROBE_NOT_FOUND)) { | |
5c08da58 LP |
6784 | log_debug("Didn't find partition table on block device '%s'.", p); |
6785 | return false; | |
6786 | } | |
2e3944b8 LP |
6787 | |
6788 | assert(r == _BLKID_SAFEPROBE_FOUND); | |
5c08da58 LP |
6789 | |
6790 | (void) blkid_probe_lookup_value(b, "PTTYPE", &pttype, NULL); | |
6791 | if (!streq_ptr(pttype, "gpt")) { | |
6792 | log_debug("Didn't find a GPT partition table on '%s'.", p); | |
6793 | return false; | |
6794 | } | |
6795 | ||
6796 | errno = 0; | |
6797 | pl = blkid_probe_get_partitions(b); | |
6798 | if (!pl) | |
6799 | return log_error_errno(errno_or_else(EIO), "Unable read partition table of '%s': %m", p); | |
5c08da58 LP |
6800 | |
6801 | pp = blkid_partlist_devno_to_partition(pl, partition_devno); | |
6802 | if (!pp) { | |
6803 | log_debug("Partition %u:%u has no matching partition table entry on '%s'.", | |
6804 | major(partition_devno), minor(partition_devno), p); | |
6805 | return false; | |
6806 | } | |
6807 | ||
6808 | t = blkid_partition_get_type_string(pp); | |
6809 | if (isempty(t)) { | |
6810 | log_debug("Partition %u:%u has no type on '%s'.", | |
6811 | major(partition_devno), minor(partition_devno), p); | |
6812 | return false; | |
6813 | } | |
6814 | ||
6815 | r = sd_id128_from_string(t, &pt_parsed); | |
6816 | if (r < 0) { | |
6817 | log_debug_errno(r, "Failed to parse partition type \"%s\": %m", t); | |
6818 | return false; | |
6819 | } | |
6820 | ||
22e932f4 | 6821 | if (!sd_id128_equal(pt_parsed, partition_type.uuid)) { |
5c08da58 LP |
6822 | log_debug("Partition %u:%u has non-matching partition type " SD_ID128_FORMAT_STR " (needed: " SD_ID128_FORMAT_STR "), ignoring.", |
6823 | major(partition_devno), minor(partition_devno), | |
22e932f4 | 6824 | SD_ID128_FORMAT_VAL(pt_parsed), SD_ID128_FORMAT_VAL(partition_type.uuid)); |
5c08da58 LP |
6825 | return false; |
6826 | } | |
6827 | ||
e3b9a5ff LP |
6828 | r = blkid_partition_get_uuid_id128(pp, &u); |
6829 | if (r == -ENXIO) { | |
6830 | log_debug_errno(r, "Partition " DEVNUM_FORMAT_STR " has no UUID.", DEVNUM_FORMAT_VAL(partition_devno)); | |
5c08da58 LP |
6831 | return false; |
6832 | } | |
5c08da58 | 6833 | if (r < 0) { |
e3b9a5ff | 6834 | log_debug_errno(r, "Failed to read partition UUID of " DEVNUM_FORMAT_STR ": %m", DEVNUM_FORMAT_VAL(partition_devno)); |
5c08da58 LP |
6835 | return false; |
6836 | } | |
6837 | ||
e3b9a5ff LP |
6838 | log_debug("Automatically found partition " DEVNUM_FORMAT_STR " of right type " SD_ID128_FORMAT_STR ".", |
6839 | DEVNUM_FORMAT_VAL(partition_devno), | |
5c08da58 LP |
6840 | SD_ID128_FORMAT_VAL(pt_parsed)); |
6841 | ||
6842 | if (ret_uuid) | |
6843 | *ret_uuid = u; | |
6844 | ||
6845 | return true; | |
6846 | } | |
6847 | ||
6848 | static int find_backing_devno( | |
6849 | const char *path, | |
6850 | const char *root, | |
6851 | dev_t *ret) { | |
6852 | ||
6853 | _cleanup_free_ char *resolved = NULL; | |
6854 | int r; | |
6855 | ||
6856 | assert(path); | |
6857 | ||
f461a28d | 6858 | r = chase(path, root, CHASE_PREFIX_ROOT, &resolved, NULL); |
5c08da58 LP |
6859 | if (r < 0) |
6860 | return r; | |
6861 | ||
b409aacb | 6862 | r = path_is_mount_point(resolved); |
5c08da58 LP |
6863 | if (r < 0) |
6864 | return r; | |
6865 | if (r == 0) /* Not a mount point, then it's not a partition of its own, let's not automatically use it. */ | |
6866 | return -ENOENT; | |
6867 | ||
6868 | r = get_block_device(resolved, ret); | |
6869 | if (r < 0) | |
6870 | return r; | |
6871 | if (r == 0) /* Not backed by physical file system, we can't use this */ | |
6872 | return -ENOENT; | |
6873 | ||
6874 | return 0; | |
6875 | } | |
6876 | ||
6877 | static int resolve_copy_blocks_auto( | |
22e932f4 | 6878 | GptPartitionType type, |
5c08da58 LP |
6879 | const char *root, |
6880 | dev_t restrict_devno, | |
1a037ba2 | 6881 | dev_t *ret_devno, |
5c08da58 LP |
6882 | sd_id128_t *ret_uuid) { |
6883 | ||
6884 | const char *try1 = NULL, *try2 = NULL; | |
6885 | char p[SYS_BLOCK_PATH_MAX("/slaves")]; | |
5d2a48da | 6886 | _cleanup_closedir_ DIR *d = NULL; |
5c08da58 LP |
6887 | sd_id128_t found_uuid = SD_ID128_NULL; |
6888 | dev_t devno, found = 0; | |
6889 | int r; | |
6890 | ||
86320e62 DDM |
6891 | /* Enforce some security restrictions: CopyBlocks=auto should not be an avenue to get outside of the |
6892 | * --root=/--image= confinement. Specifically, refuse CopyBlocks= in combination with --root= at all, | |
6893 | * and restrict block device references in the --image= case to loopback block device we set up. | |
6894 | * | |
6895 | * restrict_devno contain the dev_t of the loop back device we operate on in case of --image=, and | |
6896 | * thus declares which device (and its partition subdevices) we shall limit access to. If | |
6897 | * restrict_devno is zero no device probing access shall be allowed at all (used for --root=) and if | |
6898 | * it is (dev_t) -1 then free access shall be allowed (if neither switch is used). */ | |
6899 | ||
6900 | if (restrict_devno == 0) | |
6901 | return log_error_errno(SYNTHETIC_ERRNO(EPERM), | |
6902 | "Automatic discovery of backing block devices not permitted in --root= mode, refusing."); | |
6903 | ||
5c08da58 LP |
6904 | /* Handles CopyBlocks=auto, and finds the right source partition to copy from. We look for matching |
6905 | * partitions in the host, using the appropriate directory as key and ensuring that the partition | |
6906 | * type matches. */ | |
6907 | ||
22e932f4 | 6908 | if (type.designator == PARTITION_ROOT) |
5c08da58 | 6909 | try1 = "/"; |
22e932f4 | 6910 | else if (type.designator == PARTITION_USR) |
5c08da58 | 6911 | try1 = "/usr/"; |
22e932f4 | 6912 | else if (type.designator == PARTITION_ROOT_VERITY) |
5c08da58 | 6913 | try1 = "/"; |
22e932f4 | 6914 | else if (type.designator == PARTITION_USR_VERITY) |
5c08da58 | 6915 | try1 = "/usr/"; |
22e932f4 | 6916 | else if (type.designator == PARTITION_ESP) { |
5c08da58 LP |
6917 | try1 = "/efi/"; |
6918 | try2 = "/boot/"; | |
22e932f4 | 6919 | } else if (type.designator == PARTITION_XBOOTLDR) |
5c08da58 LP |
6920 | try1 = "/boot/"; |
6921 | else | |
6922 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
6923 | "Partition type " SD_ID128_FORMAT_STR " not supported from automatic source block device discovery.", | |
22e932f4 | 6924 | SD_ID128_FORMAT_VAL(type.uuid)); |
5c08da58 LP |
6925 | |
6926 | r = find_backing_devno(try1, root, &devno); | |
6927 | if (r == -ENOENT && try2) | |
6928 | r = find_backing_devno(try2, root, &devno); | |
6929 | if (r < 0) | |
6930 | return log_error_errno(r, "Failed to resolve automatic CopyBlocks= path for partition type " SD_ID128_FORMAT_STR ", sorry: %m", | |
22e932f4 | 6931 | SD_ID128_FORMAT_VAL(type.uuid)); |
5c08da58 LP |
6932 | |
6933 | xsprintf_sys_block_path(p, "/slaves", devno); | |
6934 | d = opendir(p); | |
6935 | if (d) { | |
6936 | struct dirent *de; | |
6937 | ||
6938 | for (;;) { | |
6939 | _cleanup_free_ char *q = NULL, *t = NULL; | |
6940 | sd_id128_t u; | |
6941 | dev_t sl; | |
6942 | ||
6943 | errno = 0; | |
6944 | de = readdir_no_dot(d); | |
6945 | if (!de) { | |
6946 | if (errno != 0) | |
6947 | return log_error_errno(errno, "Failed to read directory '%s': %m", p); | |
6948 | ||
6949 | break; | |
6950 | } | |
6951 | ||
6952 | if (!IN_SET(de->d_type, DT_LNK, DT_UNKNOWN)) | |
6953 | continue; | |
6954 | ||
6955 | q = path_join(p, de->d_name, "/dev"); | |
6956 | if (!q) | |
6957 | return log_oom(); | |
6958 | ||
6959 | r = read_one_line_file(q, &t); | |
6960 | if (r < 0) | |
6961 | return log_error_errno(r, "Failed to read %s: %m", q); | |
6962 | ||
7176f06c | 6963 | r = parse_devnum(t, &sl); |
5c08da58 LP |
6964 | if (r < 0) { |
6965 | log_debug_errno(r, "Failed to parse %s, ignoring: %m", q); | |
6966 | continue; | |
6967 | } | |
6968 | if (major(sl) == 0) { | |
375ffdba | 6969 | log_debug("Device backing %s is special, ignoring.", q); |
5c08da58 LP |
6970 | continue; |
6971 | } | |
6972 | ||
22e932f4 | 6973 | r = resolve_copy_blocks_auto_candidate(sl, type, restrict_devno, &u); |
5c08da58 LP |
6974 | if (r < 0) |
6975 | return r; | |
6976 | if (r > 0) { | |
6977 | /* We found a matching one! */ | |
6978 | if (found != 0) | |
6979 | return log_error_errno(SYNTHETIC_ERRNO(ENOTUNIQ), | |
6980 | "Multiple matching partitions found, refusing."); | |
6981 | ||
6982 | found = sl; | |
6983 | found_uuid = u; | |
6984 | } | |
6985 | } | |
6986 | } else if (errno != ENOENT) | |
6987 | return log_error_errno(errno, "Failed open %s: %m", p); | |
6988 | else { | |
22e932f4 | 6989 | r = resolve_copy_blocks_auto_candidate(devno, type, restrict_devno, &found_uuid); |
5c08da58 LP |
6990 | if (r < 0) |
6991 | return r; | |
6992 | if (r > 0) | |
6993 | found = devno; | |
6994 | } | |
6995 | ||
86320e62 DDM |
6996 | if (found == 0) |
6997 | return log_error_errno(SYNTHETIC_ERRNO(ENXIO), | |
6998 | "Unable to automatically discover suitable partition to copy blocks from."); | |
6999 | ||
1a037ba2 YW |
7000 | if (ret_devno) |
7001 | *ret_devno = found; | |
5c08da58 LP |
7002 | |
7003 | if (ret_uuid) | |
7004 | *ret_uuid = found_uuid; | |
7005 | ||
86320e62 | 7006 | return 0; |
5c08da58 LP |
7007 | } |
7008 | ||
7009 | static int context_open_copy_block_paths( | |
7010 | Context *context, | |
5c08da58 LP |
7011 | dev_t restrict_devno) { |
7012 | ||
757bc2e4 LP |
7013 | int r; |
7014 | ||
7015 | assert(context); | |
7016 | ||
7017 | LIST_FOREACH(partitions, p, context->partitions) { | |
254d1313 | 7018 | _cleanup_close_ int source_fd = -EBADF; |
5c08da58 LP |
7019 | _cleanup_free_ char *opened = NULL; |
7020 | sd_id128_t uuid = SD_ID128_NULL; | |
757bc2e4 LP |
7021 | uint64_t size; |
7022 | struct stat st; | |
7023 | ||
5eef7047 DDM |
7024 | if (p->copy_blocks_fd >= 0) |
7025 | continue; | |
7026 | ||
757bc2e4 LP |
7027 | assert(p->copy_blocks_size == UINT64_MAX); |
7028 | ||
7029 | if (PARTITION_EXISTS(p)) /* Never copy over partitions that already exist! */ | |
7030 | continue; | |
7031 | ||
5c08da58 | 7032 | if (p->copy_blocks_path) { |
757bc2e4 | 7033 | |
f461a28d | 7034 | source_fd = chase_and_open(p->copy_blocks_path, p->copy_blocks_root, CHASE_PREFIX_ROOT, O_RDONLY|O_CLOEXEC|O_NONBLOCK, &opened); |
5c08da58 LP |
7035 | if (source_fd < 0) |
7036 | return log_error_errno(source_fd, "Failed to open '%s': %m", p->copy_blocks_path); | |
757bc2e4 | 7037 | |
5c08da58 LP |
7038 | if (fstat(source_fd, &st) < 0) |
7039 | return log_error_errno(errno, "Failed to stat block copy file '%s': %m", opened); | |
7040 | ||
7041 | if (!S_ISREG(st.st_mode) && restrict_devno != (dev_t) -1) | |
7042 | return log_error_errno(SYNTHETIC_ERRNO(EPERM), | |
7043 | "Copying from block device node is not permitted in --image=/--root= mode, refusing."); | |
7044 | ||
7045 | } else if (p->copy_blocks_auto) { | |
03f5e501 | 7046 | dev_t devno = 0; /* Fake initialization to appease gcc. */ |
5c08da58 | 7047 | |
22e932f4 | 7048 | r = resolve_copy_blocks_auto(p->type, p->copy_blocks_root, restrict_devno, &devno, &uuid); |
5c08da58 LP |
7049 | if (r < 0) |
7050 | return r; | |
03f5e501 | 7051 | assert(devno != 0); |
5c08da58 | 7052 | |
ca822829 | 7053 | source_fd = r = device_open_from_devnum(S_IFBLK, devno, O_RDONLY|O_CLOEXEC|O_NONBLOCK, &opened); |
1a037ba2 | 7054 | if (r < 0) |
ca822829 YW |
7055 | return log_error_errno(r, "Failed to open automatically determined source block copy device " DEVNUM_FORMAT_STR ": %m", |
7056 | DEVNUM_FORMAT_VAL(devno)); | |
5c08da58 LP |
7057 | |
7058 | if (fstat(source_fd, &st) < 0) | |
7059 | return log_error_errno(errno, "Failed to stat block copy file '%s': %m", opened); | |
1a037ba2 | 7060 | } else |
5c08da58 | 7061 | continue; |
757bc2e4 LP |
7062 | |
7063 | if (S_ISDIR(st.st_mode)) { | |
ca822829 YW |
7064 | _cleanup_free_ char *bdev = NULL; |
7065 | dev_t devt; | |
757bc2e4 LP |
7066 | |
7067 | /* If the file is a directory, automatically find the backing block device */ | |
7068 | ||
7069 | if (major(st.st_dev) != 0) | |
ca822829 | 7070 | devt = st.st_dev; |
757bc2e4 | 7071 | else { |
757bc2e4 | 7072 | /* Special support for btrfs */ |
757bc2e4 | 7073 | r = btrfs_get_block_device_fd(source_fd, &devt); |
67f0ac8c | 7074 | if (r == -EUCLEAN) |
5c08da58 | 7075 | return btrfs_log_dev_root(LOG_ERR, r, opened); |
757bc2e4 | 7076 | if (r < 0) |
5c08da58 | 7077 | return log_error_errno(r, "Unable to determine backing block device of '%s': %m", opened); |
757bc2e4 | 7078 | } |
757bc2e4 LP |
7079 | |
7080 | safe_close(source_fd); | |
7081 | ||
ca822829 YW |
7082 | source_fd = r = device_open_from_devnum(S_IFBLK, devt, O_RDONLY|O_CLOEXEC|O_NONBLOCK, &bdev); |
7083 | if (r < 0) | |
7084 | return log_error_errno(r, "Failed to open block device backing '%s': %m", opened); | |
757bc2e4 LP |
7085 | |
7086 | if (fstat(source_fd, &st) < 0) | |
7087 | return log_error_errno(errno, "Failed to stat block device '%s': %m", bdev); | |
757bc2e4 LP |
7088 | } |
7089 | ||
7090 | if (S_ISREG(st.st_mode)) | |
7091 | size = st.st_size; | |
7092 | else if (S_ISBLK(st.st_mode)) { | |
01db9c85 LP |
7093 | r = blockdev_get_device_size(source_fd, &size); |
7094 | if (r < 0) | |
7095 | return log_error_errno(r, "Failed to determine size of block device to copy from: %m"); | |
468d09c3 LP |
7096 | } else if (S_ISCHR(st.st_mode)) |
7097 | size = UINT64_MAX; | |
7098 | else | |
4e494e6a | 7099 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Specified path to copy blocks from '%s' is not a regular file, block device or directory, refusing.", opened); |
757bc2e4 | 7100 | |
468d09c3 LP |
7101 | if (size != UINT64_MAX) { |
7102 | if (size <= 0) | |
7103 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "File to copy bytes from '%s' has zero size, refusing.", opened); | |
7104 | if (size % 512 != 0) | |
7105 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "File to copy bytes from '%s' has size that is not multiple of 512, refusing.", opened); | |
7106 | } | |
757bc2e4 LP |
7107 | |
7108 | p->copy_blocks_fd = TAKE_FD(source_fd); | |
7109 | p->copy_blocks_size = size; | |
5c08da58 LP |
7110 | |
7111 | free_and_replace(p->copy_blocks_path, opened); | |
7112 | ||
7113 | /* When copying from an existing partition copy that partitions UUID if none is configured explicitly */ | |
11749b61 | 7114 | if (!p->new_uuid_is_set && !sd_id128_is_null(uuid)) { |
5c08da58 | 7115 | p->new_uuid = uuid; |
11749b61 DDM |
7116 | p->new_uuid_is_set = true; |
7117 | } | |
757bc2e4 LP |
7118 | } |
7119 | ||
7120 | return 0; | |
7121 | } | |
7122 | ||
c4a87b76 DDM |
7123 | static int fd_apparent_size(int fd, uint64_t *ret) { |
7124 | off_t initial = 0; | |
7125 | uint64_t size = 0; | |
7126 | ||
7127 | assert(fd >= 0); | |
7128 | assert(ret); | |
7129 | ||
7130 | initial = lseek(fd, 0, SEEK_CUR); | |
7131 | if (initial < 0) | |
7132 | return log_error_errno(errno, "Failed to get file offset: %m"); | |
7133 | ||
7134 | for (off_t off = 0;;) { | |
7135 | off_t r; | |
7136 | ||
7137 | r = lseek(fd, off, SEEK_DATA); | |
7138 | if (r < 0 && errno == ENXIO) | |
7139 | /* If errno == ENXIO, that means we've reached the final hole of the file and | |
7140 | * that hole isn't followed by more data. */ | |
7141 | break; | |
7142 | if (r < 0) | |
7143 | return log_error_errno(errno, "Failed to seek data in file from offset %"PRIi64": %m", off); | |
7144 | ||
7145 | off = r; /* Set the offset to the start of the data segment. */ | |
7146 | ||
7147 | /* After copying a potential hole, find the end of the data segment by looking for | |
7148 | * the next hole. If we get ENXIO, we're at EOF. */ | |
7149 | r = lseek(fd, off, SEEK_HOLE); | |
7150 | if (r < 0) { | |
7151 | if (errno == ENXIO) | |
7152 | break; | |
7153 | return log_error_errno(errno, "Failed to seek hole in file from offset %"PRIi64": %m", off); | |
7154 | } | |
7155 | ||
7156 | size += r - off; | |
7157 | off = r; | |
7158 | } | |
7159 | ||
7160 | if (lseek(fd, initial, SEEK_SET) < 0) | |
7161 | return log_error_errno(errno, "Failed to reset file offset: %m"); | |
7162 | ||
7163 | *ret = size; | |
7164 | ||
7165 | return 0; | |
7166 | } | |
7167 | ||
1a0541d4 DDM |
7168 | static bool need_fstab_one(const Partition *p) { |
7169 | assert(p); | |
7170 | ||
7171 | if (p->dropped) | |
7172 | return false; | |
7173 | ||
7174 | if (!p->format) | |
7175 | return false; | |
7176 | ||
7177 | if (p->n_mountpoints == 0) | |
7178 | return false; | |
7179 | ||
7180 | return true; | |
7181 | } | |
7182 | ||
7183 | static bool need_fstab(const Context *context) { | |
7184 | assert(context); | |
7185 | ||
7186 | LIST_FOREACH(partitions, p, context->partitions) | |
7187 | if (need_fstab_one(p)) | |
7188 | return true; | |
7189 | ||
7190 | return false; | |
7191 | } | |
7192 | ||
7193 | static int context_fstab(Context *context) { | |
7194 | _cleanup_(unlink_and_freep) char *t = NULL; | |
7195 | _cleanup_fclose_ FILE *f = NULL; | |
7196 | _cleanup_free_ char *path = NULL; | |
7197 | int r; | |
7198 | ||
7199 | assert(context); | |
7200 | ||
7201 | if (!arg_generate_fstab) | |
7202 | return false; | |
7203 | ||
7204 | if (!need_fstab(context)) { | |
1651c914 | 7205 | log_notice("MountPoint= is not specified for any eligible partitions, not generating %s", |
1a0541d4 DDM |
7206 | arg_generate_fstab); |
7207 | return 0; | |
7208 | } | |
7209 | ||
7210 | path = path_join(arg_copy_source, arg_generate_fstab); | |
7211 | if (!path) | |
7212 | return log_oom(); | |
7213 | ||
7214 | r = fopen_tmpfile_linkable(path, O_WRONLY|O_CLOEXEC, &t, &f); | |
7215 | if (r < 0) | |
7216 | return log_error_errno(r, "Failed to open temporary file for %s: %m", path); | |
7217 | ||
7218 | fprintf(f, "# Automatically generated by systemd-repart\n\n"); | |
7219 | ||
7220 | LIST_FOREACH(partitions, p, context->partitions) { | |
7221 | _cleanup_free_ char *what = NULL, *options = NULL; | |
7222 | ||
7223 | if (!need_fstab_one(p)) | |
7224 | continue; | |
7225 | ||
7226 | what = strjoin("UUID=", SD_ID128_TO_UUID_STRING(p->fs_uuid)); | |
7227 | if (!what) | |
7228 | return log_oom(); | |
7229 | ||
7230 | FOREACH_ARRAY(mountpoint, p->mountpoints, p->n_mountpoints) { | |
7231 | r = partition_pick_mount_options( | |
7232 | p->type.designator, | |
7233 | p->format, | |
7234 | /* rw= */ true, | |
7235 | /* discard= */ !IN_SET(p->type.designator, PARTITION_ESP, PARTITION_XBOOTLDR), | |
7236 | &options, | |
7237 | NULL); | |
7238 | if (r < 0) | |
7239 | return r; | |
7240 | ||
7241 | if (!strextend_with_separator(&options, ",", mountpoint->options)) | |
7242 | return log_oom(); | |
7243 | ||
7244 | fprintf(f, "%s %s %s %s 0 %i\n", | |
7245 | what, | |
7246 | mountpoint->where, | |
7247 | p->format, | |
7248 | options, | |
7249 | p->type.designator == PARTITION_ROOT ? 1 : 2); | |
7250 | } | |
7251 | } | |
7252 | ||
7253 | r = flink_tmpfile(f, t, path, 0); | |
7254 | if (r < 0) | |
7255 | return log_error_errno(r, "Failed to link temporary file to %s: %m", path); | |
7256 | ||
7257 | log_info("%s written.", path); | |
7258 | ||
7259 | return 0; | |
7260 | } | |
7261 | ||
7262 | static bool need_crypttab_one(const Partition *p) { | |
7263 | assert(p); | |
7264 | ||
7265 | if (p->dropped) | |
7266 | return false; | |
7267 | ||
7268 | if (p->encrypt == ENCRYPT_OFF) | |
7269 | return false; | |
7270 | ||
7271 | if (!p->encrypted_volume) | |
7272 | return false; | |
7273 | ||
7274 | return true; | |
7275 | } | |
7276 | ||
7277 | static bool need_crypttab(Context *context) { | |
7278 | assert(context); | |
7279 | ||
7280 | LIST_FOREACH(partitions, p, context->partitions) | |
7281 | if (need_crypttab_one(p)) | |
7282 | return true; | |
7283 | ||
7284 | return false; | |
7285 | } | |
7286 | ||
7287 | static int context_crypttab(Context *context) { | |
7288 | _cleanup_(unlink_and_freep) char *t = NULL; | |
7289 | _cleanup_fclose_ FILE *f = NULL; | |
7290 | _cleanup_free_ char *path = NULL; | |
7291 | int r; | |
7292 | ||
7293 | assert(context); | |
7294 | ||
7295 | if (!arg_generate_crypttab) | |
7296 | return false; | |
7297 | ||
7298 | if (!need_crypttab(context)) { | |
1651c914 | 7299 | log_notice("EncryptedVolume= is not specified for any eligible partitions, not generating %s", |
1a0541d4 DDM |
7300 | arg_generate_crypttab); |
7301 | return 0; | |
7302 | } | |
7303 | ||
7304 | path = path_join(arg_copy_source, arg_generate_crypttab); | |
7305 | if (!path) | |
7306 | return log_oom(); | |
7307 | ||
7308 | r = fopen_tmpfile_linkable(path, O_WRONLY|O_CLOEXEC, &t, &f); | |
7309 | if (r < 0) | |
7310 | return log_error_errno(r, "Failed to open temporary file for %s: %m", path); | |
7311 | ||
7312 | fprintf(f, "# Automatically generated by systemd-repart\n\n"); | |
7313 | ||
7314 | LIST_FOREACH(partitions, p, context->partitions) { | |
7315 | _cleanup_free_ char *volume = NULL; | |
7316 | ||
7317 | if (!need_crypttab_one(p)) | |
7318 | continue; | |
7319 | ||
7320 | if (!p->encrypted_volume->name && asprintf(&volume, "luks-%s", SD_ID128_TO_UUID_STRING(p->luks_uuid)) < 0) | |
7321 | return log_oom(); | |
7322 | ||
7323 | fprintf(f, "%s UUID=%s %s %s\n", | |
7324 | p->encrypted_volume->name ?: volume, | |
7325 | SD_ID128_TO_UUID_STRING(p->luks_uuid), | |
7326 | isempty(p->encrypted_volume->keyfile) ? "-" : p->encrypted_volume->keyfile, | |
7327 | strempty(p->encrypted_volume->options)); | |
7328 | } | |
7329 | ||
7330 | r = flink_tmpfile(f, t, path, 0); | |
7331 | if (r < 0) | |
7332 | return log_error_errno(r, "Failed to link temporary file to %s: %m", path); | |
7333 | ||
7334 | log_info("%s written.", path); | |
7335 | ||
7336 | return 0; | |
7337 | } | |
7338 | ||
c4a87b76 | 7339 | static int context_minimize(Context *context) { |
c264ec5f | 7340 | const char *vt = NULL; |
b9c0b6c0 | 7341 | unsigned attrs = 0; |
c4a87b76 DDM |
7342 | int r; |
7343 | ||
7344 | assert(context); | |
7345 | ||
b9c0b6c0 DDM |
7346 | r = read_attr_fd(context->backing_fd, &attrs); |
7347 | if (r < 0 && !ERRNO_IS_NEG_NOT_SUPPORTED(r)) | |
7348 | return log_error_errno(r, "Failed to read file attributes of %s: %m", arg_node); | |
7349 | ||
c4a87b76 | 7350 | LIST_FOREACH(partitions, p, context->partitions) { |
e59678b2 | 7351 | _cleanup_(rm_rf_physical_and_freep) char *root = NULL; |
c4a87b76 | 7352 | _cleanup_(unlink_and_freep) char *temp = NULL; |
d3201eb4 | 7353 | _cleanup_(loop_device_unrefp) LoopDevice *d = NULL; |
4b8ce14f | 7354 | _cleanup_strv_free_ char **extra_mkfs_options = NULL; |
254d1313 | 7355 | _cleanup_close_ int fd = -EBADF; |
b24bfd6e | 7356 | _cleanup_free_ char *hint = NULL; |
c4a87b76 | 7357 | sd_id128_t fs_uuid; |
6ac299e3 | 7358 | struct stat st; |
c4a87b76 DDM |
7359 | uint64_t fsz; |
7360 | ||
7361 | if (p->dropped) | |
7362 | continue; | |
7363 | ||
7364 | if (PARTITION_EXISTS(p)) /* Never format existing partitions */ | |
7365 | continue; | |
7366 | ||
7367 | if (!p->format) | |
7368 | continue; | |
7369 | ||
dea0dc7b DDM |
7370 | if (p->copy_blocks_fd >= 0) |
7371 | continue; | |
7372 | ||
5c33b686 | 7373 | if (p->minimize == MINIMIZE_OFF) |
c4a87b76 DDM |
7374 | continue; |
7375 | ||
d3201eb4 DDM |
7376 | if (!partition_needs_populate(p)) |
7377 | continue; | |
7378 | ||
c4a87b76 DDM |
7379 | assert(!p->copy_blocks_path); |
7380 | ||
b24bfd6e DDM |
7381 | (void) partition_hint(p, context->node, &hint); |
7382 | ||
7383 | log_info("Pre-populating %s filesystem of partition %s twice to calculate minimal partition size", | |
7384 | p->format, strna(hint)); | |
7385 | ||
c264ec5f ZJS |
7386 | if (!vt) { |
7387 | r = var_tmp_dir(&vt); | |
7388 | if (r < 0) | |
7389 | return log_error_errno(r, "Could not determine temporary directory: %m"); | |
7390 | } | |
7391 | ||
c4a87b76 DDM |
7392 | r = tempfn_random_child(vt, "repart", &temp); |
7393 | if (r < 0) | |
7394 | return log_error_errno(r, "Failed to generate temporary file path: %m"); | |
7395 | ||
b9c0b6c0 DDM |
7396 | fd = xopenat_full( |
7397 | AT_FDCWD, | |
7398 | temp, | |
7399 | O_CREAT|O_EXCL|O_CLOEXEC|O_RDWR|O_NOCTTY, | |
7400 | attrs & FS_NOCOW_FL ? XO_NOCOW : 0, | |
7401 | 0600); | |
7402 | if (fd < 0) | |
7403 | return log_error_errno(errno, "Failed to open temporary file %s: %m", temp); | |
7404 | ||
59e2be46 DDM |
7405 | if (fstype_is_ro(p->format)) |
7406 | fs_uuid = p->fs_uuid; | |
7407 | else { | |
c4a87b76 | 7408 | /* This may seem huge but it will be created sparse so it doesn't take up any space |
d3201eb4 | 7409 | * on disk until written to. */ |
c4a87b76 DDM |
7410 | if (ftruncate(fd, 1024ULL * 1024ULL * 1024ULL * 1024ULL) < 0) |
7411 | return log_error_errno(errno, "Failed to truncate temporary file to %s: %m", | |
7412 | FORMAT_BYTES(1024ULL * 1024ULL * 1024ULL * 1024ULL)); | |
7413 | ||
e30c6e91 | 7414 | if (arg_offline <= 0) { |
66a8c74c | 7415 | r = loop_device_make(fd, O_RDWR, 0, UINT64_MAX, context->sector_size, 0, LOCK_EX, &d); |
3799fa80 | 7416 | if (r < 0 && loop_device_error_is_fatal(p, r)) |
e30c6e91 DDM |
7417 | return log_error_errno(r, "Failed to make loopback device of %s: %m", temp); |
7418 | } | |
d3201eb4 | 7419 | |
c4a87b76 DDM |
7420 | /* We're going to populate this filesystem twice so use a random UUID the first time |
7421 | * to avoid UUID conflicts. */ | |
7422 | r = sd_id128_randomize(&fs_uuid); | |
7423 | if (r < 0) | |
7424 | return r; | |
59e2be46 DDM |
7425 | } |
7426 | ||
d3201eb4 DDM |
7427 | if (!d || fstype_is_ro(p->format)) { |
7428 | if (!mkfs_supports_root_option(p->format)) | |
7429 | return log_error_errno(SYNTHETIC_ERRNO(ENODEV), | |
4e494e6a | 7430 | "Loop device access is required to populate %s filesystems.", |
d3201eb4 DDM |
7431 | p->format); |
7432 | ||
e57b7020 | 7433 | r = partition_populate_directory(context, p, &root); |
c4a87b76 DDM |
7434 | if (r < 0) |
7435 | return r; | |
c4a87b76 DDM |
7436 | } |
7437 | ||
eca3d07d | 7438 | r = finalize_extra_mkfs_options(p, root, &extra_mkfs_options); |
4b8ce14f | 7439 | if (r < 0) |
eca3d07d | 7440 | return r; |
4b8ce14f | 7441 | |
93f125a6 DDM |
7442 | r = make_filesystem(d ? d->node : temp, |
7443 | p->format, | |
7444 | strempty(p->new_label), | |
7445 | root, | |
7446 | fs_uuid, | |
7447 | arg_discard, /* quiet = */ false, | |
7448 | context->fs_sector_size, | |
27cacec9 DDM |
7449 | p->compression, |
7450 | p->compression_level, | |
93f125a6 | 7451 | extra_mkfs_options); |
c4a87b76 DDM |
7452 | if (r < 0) |
7453 | return r; | |
7454 | ||
7455 | /* Read-only filesystems are minimal from the first try because they create and size the | |
7456 | * loopback file for us. */ | |
7457 | if (fstype_is_ro(p->format)) { | |
b9c0b6c0 | 7458 | fd = safe_close(fd); |
2843df3e | 7459 | |
dea0dc7b DDM |
7460 | fd = open(temp, O_RDONLY|O_CLOEXEC|O_NONBLOCK); |
7461 | if (fd < 0) | |
7462 | return log_error_errno(errno, "Failed to open temporary file %s: %m", temp); | |
7463 | ||
7464 | if (fstat(fd, &st) < 0) | |
b24bfd6e DDM |
7465 | return log_error_errno(errno, "Failed to stat temporary file: %m"); |
7466 | ||
7467 | log_info("Minimal partition size of %s filesystem of partition %s is %s", | |
7468 | p->format, strna(hint), FORMAT_BYTES(st.st_size)); | |
7469 | ||
c4a87b76 | 7470 | p->copy_blocks_path = TAKE_PTR(temp); |
7d07030e | 7471 | p->copy_blocks_path_is_our_file = true; |
2843df3e DDM |
7472 | p->copy_blocks_fd = TAKE_FD(fd); |
7473 | p->copy_blocks_size = st.st_size; | |
c4a87b76 DDM |
7474 | continue; |
7475 | } | |
7476 | ||
d3201eb4 DDM |
7477 | if (!root) { |
7478 | assert(d); | |
7479 | ||
e57b7020 | 7480 | r = partition_populate_filesystem(context, p, d->node); |
59e2be46 DDM |
7481 | if (r < 0) |
7482 | return r; | |
7483 | } | |
c4a87b76 DDM |
7484 | |
7485 | /* Other filesystems need to be provided with a pre-sized loopback file and will adapt to | |
7486 | * fully occupy it. Because we gave the filesystem a 1T sparse file, we need to shrink the | |
7487 | * filesystem down to a reasonable size again to fit it in the disk image. While there are | |
7488 | * some filesystems that support shrinking, it doesn't always work properly (e.g. shrinking | |
7489 | * btrfs gives us a 2.0G filesystem regardless of what we put in it). Instead, let's populate | |
7490 | * the filesystem again, but this time, instead of providing the filesystem with a 1T sparse | |
7491 | * loopback file, let's size the loopback file based on the actual data used by the | |
7492 | * filesystem in the sparse file after the first attempt. This should be a good guess of the | |
7493 | * minimal amount of space needed in the filesystem to fit all the required data. | |
7494 | */ | |
7495 | r = fd_apparent_size(fd, &fsz); | |
7496 | if (r < 0) | |
7497 | return r; | |
7498 | ||
7499 | /* Massage the size a bit because just going by actual data used in the sparse file isn't | |
7500 | * fool-proof. */ | |
7bc6c028 DDM |
7501 | uint64_t heuristic = streq(p->format, "xfs") ? fsz : fsz / 2; |
7502 | fsz = round_up_size(fsz + heuristic, context->grain_size); | |
c4a87b76 DDM |
7503 | if (minimal_size_by_fs_name(p->format) != UINT64_MAX) |
7504 | fsz = MAX(minimal_size_by_fs_name(p->format), fsz); | |
7505 | ||
b24bfd6e DDM |
7506 | log_info("Minimal partition size of %s filesystem of partition %s is %s", |
7507 | p->format, strna(hint), FORMAT_BYTES(fsz)); | |
7508 | ||
d3201eb4 DDM |
7509 | d = loop_device_unref(d); |
7510 | ||
c4a87b76 | 7511 | /* Erase the previous filesystem first. */ |
6c7f4bad | 7512 | if (ftruncate(fd, 0) < 0) |
c4a87b76 DDM |
7513 | return log_error_errno(errno, "Failed to erase temporary file: %m"); |
7514 | ||
6c7f4bad | 7515 | if (ftruncate(fd, fsz) < 0) |
c4a87b76 DDM |
7516 | return log_error_errno(errno, "Failed to truncate temporary file to %s: %m", FORMAT_BYTES(fsz)); |
7517 | ||
e30c6e91 | 7518 | if (arg_offline <= 0) { |
66a8c74c | 7519 | r = loop_device_make(fd, O_RDWR, 0, UINT64_MAX, context->sector_size, 0, LOCK_EX, &d); |
9fb5d912 | 7520 | if (r < 0 && loop_device_error_is_fatal(p, r)) |
e30c6e91 DDM |
7521 | return log_error_errno(r, "Failed to make loopback device of %s: %m", temp); |
7522 | } | |
d3201eb4 | 7523 | |
93f125a6 DDM |
7524 | r = make_filesystem(d ? d->node : temp, |
7525 | p->format, | |
7526 | strempty(p->new_label), | |
7527 | root, | |
7528 | p->fs_uuid, | |
7529 | arg_discard, | |
7530 | /* quiet = */ false, | |
7531 | context->fs_sector_size, | |
27cacec9 DDM |
7532 | p->compression, |
7533 | p->compression_level, | |
93f125a6 | 7534 | extra_mkfs_options); |
c4a87b76 DDM |
7535 | if (r < 0) |
7536 | return r; | |
7537 | ||
d3201eb4 DDM |
7538 | if (!root) { |
7539 | assert(d); | |
7540 | ||
e57b7020 | 7541 | r = partition_populate_filesystem(context, p, d->node); |
59e2be46 DDM |
7542 | if (r < 0) |
7543 | return r; | |
7544 | } | |
c4a87b76 | 7545 | |
6ac299e3 DDM |
7546 | if (fstat(fd, &st) < 0) |
7547 | return log_error_errno(errno, "Failed to stat temporary file: %m"); | |
dea0dc7b | 7548 | |
c4a87b76 | 7549 | p->copy_blocks_path = TAKE_PTR(temp); |
7d07030e | 7550 | p->copy_blocks_path_is_our_file = true; |
2843df3e | 7551 | p->copy_blocks_fd = TAKE_FD(fd); |
6ac299e3 | 7552 | p->copy_blocks_size = st.st_size; |
c4a87b76 DDM |
7553 | } |
7554 | ||
5eef7047 DDM |
7555 | /* Now that we've done the data partitions, do the verity hash partitions. We do these in a separate |
7556 | * step because they might depend on data generated in the previous step. */ | |
7557 | ||
7558 | LIST_FOREACH(partitions, p, context->partitions) { | |
7559 | _cleanup_(unlink_and_freep) char *temp = NULL; | |
7560 | _cleanup_free_ char *hint = NULL; | |
2843df3e | 7561 | _cleanup_close_ int fd = -EBADF; |
5eef7047 DDM |
7562 | struct stat st; |
7563 | Partition *dp; | |
7564 | ||
7565 | if (p->dropped) | |
7566 | continue; | |
7567 | ||
7568 | if (PARTITION_EXISTS(p)) /* Never format existing partitions */ | |
7569 | continue; | |
7570 | ||
7571 | if (p->minimize == MINIMIZE_OFF) | |
7572 | continue; | |
7573 | ||
7574 | if (p->verity != VERITY_HASH) | |
7575 | continue; | |
7576 | ||
7577 | assert_se(dp = p->siblings[VERITY_DATA]); | |
7578 | assert(!dp->dropped); | |
7579 | assert(dp->copy_blocks_path); | |
7580 | ||
7581 | (void) partition_hint(p, context->node, &hint); | |
7582 | ||
7583 | log_info("Pre-populating verity hash data of partition %s to calculate minimal partition size", | |
7584 | strna(hint)); | |
7585 | ||
c264ec5f ZJS |
7586 | if (!vt) { |
7587 | r = var_tmp_dir(&vt); | |
7588 | if (r < 0) | |
7589 | return log_error_errno(r, "Could not determine temporary directory: %m"); | |
7590 | } | |
7591 | ||
5eef7047 DDM |
7592 | r = tempfn_random_child(vt, "repart", &temp); |
7593 | if (r < 0) | |
7594 | return log_error_errno(r, "Failed to generate temporary file path: %m"); | |
7595 | ||
b9c0b6c0 DDM |
7596 | fd = xopenat_full( |
7597 | AT_FDCWD, | |
7598 | temp, | |
7599 | O_RDONLY|O_CLOEXEC|O_CREAT|O_NONBLOCK, | |
7600 | attrs & FS_NOCOW_FL ? XO_NOCOW : 0, | |
7601 | 0600); | |
7602 | if (fd < 0) | |
7603 | return log_error_errno(errno, "Failed to open temporary file %s: %m", temp); | |
5eef7047 DDM |
7604 | |
7605 | r = partition_format_verity_hash(context, p, temp, dp->copy_blocks_path); | |
7606 | if (r < 0) | |
7607 | return r; | |
7608 | ||
2843df3e | 7609 | if (fstat(fd, &st) < 0) |
9f08d7f7 | 7610 | return log_error_errno(errno, "Failed to stat temporary file: %m"); |
5eef7047 DDM |
7611 | |
7612 | log_info("Minimal partition size of verity hash partition %s is %s", | |
7613 | strna(hint), FORMAT_BYTES(st.st_size)); | |
7614 | ||
7615 | p->copy_blocks_path = TAKE_PTR(temp); | |
7616 | p->copy_blocks_path_is_our_file = true; | |
2843df3e DDM |
7617 | p->copy_blocks_fd = TAKE_FD(fd); |
7618 | p->copy_blocks_size = st.st_size; | |
5eef7047 DDM |
7619 | } |
7620 | ||
c4a87b76 DDM |
7621 | return 0; |
7622 | } | |
7623 | ||
9786dfe6 | 7624 | static int parse_partition_types(const char *p, GptPartitionType **partitions, size_t *n_partitions) { |
81d1098b DDM |
7625 | int r; |
7626 | ||
220780db DDM |
7627 | assert(partitions); |
7628 | assert(n_partitions); | |
7629 | ||
81d1098b DDM |
7630 | for (;;) { |
7631 | _cleanup_free_ char *name = NULL; | |
7632 | GptPartitionType type; | |
7633 | ||
7634 | r = extract_first_word(&p, &name, ",", EXTRACT_CUNESCAPE|EXTRACT_DONT_COALESCE_SEPARATORS); | |
7635 | if (r == 0) | |
7636 | break; | |
7637 | if (r < 0) | |
766f52f2 | 7638 | return log_error_errno(r, "Failed to extract partition type identifier or GUID: %s", p); |
81d1098b DDM |
7639 | |
7640 | r = gpt_partition_type_from_string(name, &type); | |
7641 | if (r < 0) | |
766f52f2 | 7642 | return log_error_errno(r, "'%s' is not a valid partition type identifier or GUID", name); |
81d1098b | 7643 | |
220780db | 7644 | if (!GREEDY_REALLOC(*partitions, *n_partitions + 1)) |
81d1098b DDM |
7645 | return log_oom(); |
7646 | ||
9786dfe6 | 7647 | (*partitions)[(*n_partitions)++] = type; |
81d1098b DDM |
7648 | } |
7649 | ||
7650 | return 0; | |
7651 | } | |
7652 | ||
e594a3b1 LP |
7653 | static int help(void) { |
7654 | _cleanup_free_ char *link = NULL; | |
7655 | int r; | |
7656 | ||
6dadf31d | 7657 | r = terminal_urlify_man("systemd-repart", "8", &link); |
e594a3b1 LP |
7658 | if (r < 0) |
7659 | return log_oom(); | |
7660 | ||
68debef4 LP |
7661 | printf("%1$s [OPTIONS...] [DEVICE]\n" |
7662 | "\n%5$sGrow and add partitions to a partition table, and generate disk images (DDIs).%6$s\n\n" | |
e594a3b1 LP |
7663 | " -h --help Show this help\n" |
7664 | " --version Show package version\n" | |
896e678b LP |
7665 | " --no-pager Do not pipe output into a pager\n" |
7666 | " --no-legend Do not show the headers and footers\n" | |
68debef4 | 7667 | "\n%3$sOperation:%4$s\n" |
e594a3b1 | 7668 | " --dry-run=BOOL Whether to run dry-run operation\n" |
a26f4a49 LP |
7669 | " --empty=MODE One of refuse, allow, require, force, create; controls\n" |
7670 | " how to handle empty disks lacking partition tables\n" | |
68debef4 | 7671 | " --offline=BOOL Whether to build the image offline\n" |
e594a3b1 | 7672 | " --discard=BOOL Whether to discard backing blocks for new partitions\n" |
68debef4 LP |
7673 | " --sector-size=SIZE Set the logical sector size for the image\n" |
7674 | " --architecture=ARCH Set the generic architecture for the image\n" | |
7675 | " --size=BYTES Grow loopback file to specified size\n" | |
7676 | " --seed=UUID 128-bit seed UUID to derive all UUIDs from\n" | |
7677 | " --split=BOOL Whether to generate split artifacts\n" | |
7678 | "\n%3$sOutput:%4$s\n" | |
2d2d0a57 | 7679 | " --pretty=BOOL Whether to show pretty summary before doing changes\n" |
68debef4 LP |
7680 | " --json=pretty|short|off\n" |
7681 | " Generate JSON output\n" | |
7682 | "\n%3$sFactory Reset:%4$s\n" | |
e594a3b1 LP |
7683 | " --factory-reset=BOOL Whether to remove data partitions before recreating\n" |
7684 | " them\n" | |
7685 | " --can-factory-reset Test whether factory reset is defined\n" | |
68debef4 | 7686 | "\n%3$sConfiguration & Image Control:%4$s\n" |
e594a3b1 | 7687 | " --root=PATH Operate relative to root path\n" |
252d6267 | 7688 | " --image=PATH Operate relative to image file\n" |
84be0c71 LP |
7689 | " --image-policy=POLICY\n" |
7690 | " Specify disk image dissection policy\n" | |
9d252fbb | 7691 | " --definitions=DIR Find partition definitions in specified directory\n" |
3a37a13a | 7692 | " --list-devices List candidate block devices to operate on\n" |
68debef4 | 7693 | "\n%3$sVerity:%4$s\n" |
a73144bb LB |
7694 | " --private-key=PATH|URI\n" |
7695 | " Private key to use when generating verity roothash\n" | |
7696 | " signatures, or an engine or provider specific\n" | |
4955d2e3 | 7697 | " designation if --private-key-source= is used\n" |
a73144bb | 7698 | " --private-key-source=file|provider:PROVIDER|engine:ENGINE\n" |
4955d2e3 | 7699 | " Specify how to use KEY for --private-key=. Allows\n" |
1cd53a1f ZJS |
7700 | " an OpenSSL engine/provider to be used when generating\n" |
7701 | " verity roothash signatures\n" | |
b456191d DDM |
7702 | " --certificate=PATH PEM certificate to use when generating verity\n" |
7703 | " roothash signatures\n" | |
68debef4 LP |
7704 | "\n%3$sEncryption:%4$s\n" |
7705 | " --key-file=PATH Key to use when encrypting partitions\n" | |
889914ef | 7706 | " --tpm2-device=PATH Path to TPM2 device node to use\n" |
78fdf0f6 LP |
7707 | " --tpm2-device-key=PATH\n" |
7708 | " Enroll a TPM2 device using its public key\n" | |
7709 | " --tpm2-seal-key-handle=HANDLE\n" | |
7710 | " Specify handle of key to use for sealing\n" | |
a1788a69 | 7711 | " --tpm2-pcrs=PCR1+PCR2+PCR3+…\n" |
889914ef | 7712 | " TPM2 PCR indexes to use for TPM2 enrollment\n" |
02ef97cd LP |
7713 | " --tpm2-public-key=PATH\n" |
7714 | " Enroll signed TPM2 PCR policy against PEM public key\n" | |
7715 | " --tpm2-public-key-pcrs=PCR1+PCR2+PCR3+…\n" | |
7716 | " Enroll signed TPM2 PCR policy for specified TPM2 PCRs\n" | |
fadc7d8c LP |
7717 | " --tpm2-pcrlock=PATH\n" |
7718 | " Specify pcrlock policy to lock against\n" | |
68debef4 | 7719 | "\n%3$sPartition Control:%4$s\n" |
81d1098b | 7720 | " --include-partitions=PARTITION1,PARTITION2,PARTITION3,…\n" |
7d505753 | 7721 | " Ignore partitions not of the specified types\n" |
81d1098b | 7722 | " --exclude-partitions=PARTITION1,PARTITION2,PARTITION3,…\n" |
7d505753 | 7723 | " Ignore partitions of the specified types\n" |
8275334b | 7724 | " --defer-partitions=PARTITION1,PARTITION2,PARTITION3,…\n" |
7d505753 DDM |
7725 | " Take partitions of the specified types into account\n" |
7726 | " but don't populate them yet\n" | |
68debef4 | 7727 | "\n%3$sCopying:%4$s\n" |
607343a1 | 7728 | " -s --copy-source=PATH Specify the primary source tree to copy files from\n" |
e1536d1f | 7729 | " --copy-from=IMAGE Copy partitions from the given image(s)\n" |
68debef4 | 7730 | "\n%3$sDDI Profile:%4$s\n" |
a121b331 LP |
7731 | " -S --make-ddi=sysext Make a system extension DDI\n" |
7732 | " -C --make-ddi=confext Make a configuration extension DDI\n" | |
7733 | " -P --make-ddi=portable Make a portable service DDI\n" | |
68debef4 | 7734 | "\n%3$sAuxiliary Resource Generation:%4$s\n" |
1a0541d4 DDM |
7735 | " --generate-fstab=PATH\n" |
7736 | " Write fstab configuration to the given path\n" | |
7737 | " --generate-crypttab=PATH\n" | |
7738 | " Write crypttab configuration to the given path\n" | |
68debef4 | 7739 | "\nSee the %2$s for details.\n", |
bc556335 | 7740 | program_invocation_short_name, |
68debef4 LP |
7741 | link, |
7742 | ansi_underline(), | |
bc556335 | 7743 | ansi_normal(), |
68debef4 LP |
7744 | ansi_highlight(), |
7745 | ansi_normal()); | |
e594a3b1 LP |
7746 | |
7747 | return 0; | |
7748 | } | |
7749 | ||
7750 | static int parse_argv(int argc, char *argv[]) { | |
a73144bb | 7751 | _cleanup_free_ char *private_key = NULL; |
e594a3b1 LP |
7752 | |
7753 | enum { | |
7754 | ARG_VERSION = 0x100, | |
896e678b LP |
7755 | ARG_NO_PAGER, |
7756 | ARG_NO_LEGEND, | |
e594a3b1 LP |
7757 | ARG_DRY_RUN, |
7758 | ARG_EMPTY, | |
7759 | ARG_DISCARD, | |
7760 | ARG_FACTORY_RESET, | |
7761 | ARG_CAN_FACTORY_RESET, | |
7762 | ARG_ROOT, | |
252d6267 | 7763 | ARG_IMAGE, |
06e78680 | 7764 | ARG_IMAGE_POLICY, |
e594a3b1 LP |
7765 | ARG_SEED, |
7766 | ARG_PRETTY, | |
7767 | ARG_DEFINITIONS, | |
a26f4a49 | 7768 | ARG_SIZE, |
a015fbe7 | 7769 | ARG_JSON, |
b9df3536 | 7770 | ARG_KEY_FILE, |
b456191d | 7771 | ARG_PRIVATE_KEY, |
a73144bb | 7772 | ARG_PRIVATE_KEY_SOURCE, |
b456191d | 7773 | ARG_CERTIFICATE, |
889914ef | 7774 | ARG_TPM2_DEVICE, |
78fdf0f6 LP |
7775 | ARG_TPM2_DEVICE_KEY, |
7776 | ARG_TPM2_SEAL_KEY_HANDLE, | |
889914ef | 7777 | ARG_TPM2_PCRS, |
02ef97cd LP |
7778 | ARG_TPM2_PUBLIC_KEY, |
7779 | ARG_TPM2_PUBLIC_KEY_PCRS, | |
404aea78 | 7780 | ARG_TPM2_PCRLOCK, |
4cee8333 | 7781 | ARG_SPLIT, |
81d1098b DDM |
7782 | ARG_INCLUDE_PARTITIONS, |
7783 | ARG_EXCLUDE_PARTITIONS, | |
8275334b | 7784 | ARG_DEFER_PARTITIONS, |
e1878ef7 | 7785 | ARG_SECTOR_SIZE, |
84be0c71 | 7786 | ARG_SKIP_PARTITIONS, |
9786dfe6 | 7787 | ARG_ARCHITECTURE, |
fc10b158 | 7788 | ARG_OFFLINE, |
1e46985a | 7789 | ARG_COPY_FROM, |
a121b331 | 7790 | ARG_MAKE_DDI, |
1a0541d4 DDM |
7791 | ARG_GENERATE_FSTAB, |
7792 | ARG_GENERATE_CRYPTTAB, | |
3a37a13a | 7793 | ARG_LIST_DEVICES, |
e594a3b1 LP |
7794 | }; |
7795 | ||
7796 | static const struct option options[] = { | |
02ef97cd LP |
7797 | { "help", no_argument, NULL, 'h' }, |
7798 | { "version", no_argument, NULL, ARG_VERSION }, | |
7799 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
7800 | { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, | |
7801 | { "dry-run", required_argument, NULL, ARG_DRY_RUN }, | |
7802 | { "empty", required_argument, NULL, ARG_EMPTY }, | |
7803 | { "discard", required_argument, NULL, ARG_DISCARD }, | |
7804 | { "factory-reset", required_argument, NULL, ARG_FACTORY_RESET }, | |
7805 | { "can-factory-reset", no_argument, NULL, ARG_CAN_FACTORY_RESET }, | |
7806 | { "root", required_argument, NULL, ARG_ROOT }, | |
7807 | { "image", required_argument, NULL, ARG_IMAGE }, | |
06e78680 | 7808 | { "image-policy", required_argument, NULL, ARG_IMAGE_POLICY }, |
02ef97cd LP |
7809 | { "seed", required_argument, NULL, ARG_SEED }, |
7810 | { "pretty", required_argument, NULL, ARG_PRETTY }, | |
7811 | { "definitions", required_argument, NULL, ARG_DEFINITIONS }, | |
7812 | { "size", required_argument, NULL, ARG_SIZE }, | |
7813 | { "json", required_argument, NULL, ARG_JSON }, | |
7814 | { "key-file", required_argument, NULL, ARG_KEY_FILE }, | |
b456191d | 7815 | { "private-key", required_argument, NULL, ARG_PRIVATE_KEY }, |
a73144bb | 7816 | { "private-key-source", required_argument, NULL, ARG_PRIVATE_KEY_SOURCE }, |
b456191d | 7817 | { "certificate", required_argument, NULL, ARG_CERTIFICATE }, |
02ef97cd | 7818 | { "tpm2-device", required_argument, NULL, ARG_TPM2_DEVICE }, |
78fdf0f6 LP |
7819 | { "tpm2-device-key", required_argument, NULL, ARG_TPM2_DEVICE_KEY }, |
7820 | { "tpm2-seal-key-handle", required_argument, NULL, ARG_TPM2_SEAL_KEY_HANDLE }, | |
02ef97cd LP |
7821 | { "tpm2-pcrs", required_argument, NULL, ARG_TPM2_PCRS }, |
7822 | { "tpm2-public-key", required_argument, NULL, ARG_TPM2_PUBLIC_KEY }, | |
7823 | { "tpm2-public-key-pcrs", required_argument, NULL, ARG_TPM2_PUBLIC_KEY_PCRS }, | |
404aea78 | 7824 | { "tpm2-pcrlock", required_argument, NULL, ARG_TPM2_PCRLOCK }, |
4cee8333 | 7825 | { "split", required_argument, NULL, ARG_SPLIT }, |
81d1098b DDM |
7826 | { "include-partitions", required_argument, NULL, ARG_INCLUDE_PARTITIONS }, |
7827 | { "exclude-partitions", required_argument, NULL, ARG_EXCLUDE_PARTITIONS }, | |
8275334b | 7828 | { "defer-partitions", required_argument, NULL, ARG_DEFER_PARTITIONS }, |
e1878ef7 | 7829 | { "sector-size", required_argument, NULL, ARG_SECTOR_SIZE }, |
9786dfe6 | 7830 | { "architecture", required_argument, NULL, ARG_ARCHITECTURE }, |
fc10b158 | 7831 | { "offline", required_argument, NULL, ARG_OFFLINE }, |
1e46985a | 7832 | { "copy-from", required_argument, NULL, ARG_COPY_FROM }, |
607343a1 | 7833 | { "copy-source", required_argument, NULL, 's' }, |
a121b331 | 7834 | { "make-ddi", required_argument, NULL, ARG_MAKE_DDI }, |
1a0541d4 DDM |
7835 | { "generate-fstab", required_argument, NULL, ARG_GENERATE_FSTAB }, |
7836 | { "generate-crypttab", required_argument, NULL, ARG_GENERATE_CRYPTTAB }, | |
3a37a13a | 7837 | { "list-devices", no_argument, NULL, ARG_LIST_DEVICES }, |
e594a3b1 LP |
7838 | {} |
7839 | }; | |
7840 | ||
404aea78 | 7841 | bool auto_hash_pcr_values = true, auto_public_key_pcr_mask = true, auto_pcrlock = true; |
ba6bd342 | 7842 | int c, r; |
e594a3b1 LP |
7843 | |
7844 | assert(argc >= 0); | |
7845 | assert(argv); | |
7846 | ||
a121b331 | 7847 | while ((c = getopt_long(argc, argv, "hs:SCP", options, NULL)) >= 0) |
e594a3b1 LP |
7848 | |
7849 | switch (c) { | |
7850 | ||
7851 | case 'h': | |
7852 | return help(); | |
7853 | ||
7854 | case ARG_VERSION: | |
7855 | return version(); | |
7856 | ||
896e678b LP |
7857 | case ARG_NO_PAGER: |
7858 | arg_pager_flags |= PAGER_DISABLE; | |
7859 | break; | |
7860 | ||
7861 | case ARG_NO_LEGEND: | |
7862 | arg_legend = false; | |
7863 | break; | |
7864 | ||
e594a3b1 | 7865 | case ARG_DRY_RUN: |
599c7c54 | 7866 | r = parse_boolean_argument("--dry-run=", optarg, &arg_dry_run); |
e594a3b1 | 7867 | if (r < 0) |
599c7c54 | 7868 | return r; |
e594a3b1 LP |
7869 | break; |
7870 | ||
7871 | case ARG_EMPTY: | |
634b8471 | 7872 | if (isempty(optarg)) { |
243dd1e9 | 7873 | arg_empty = EMPTY_UNSET; |
634b8471 LP |
7874 | break; |
7875 | } | |
7876 | ||
7877 | arg_empty = empty_mode_from_string(optarg); | |
7878 | if (arg_empty < 0) | |
7879 | return log_error_errno(arg_empty, "Failed to parse --empty= parameter: %s", optarg); | |
7880 | ||
e594a3b1 LP |
7881 | break; |
7882 | ||
7883 | case ARG_DISCARD: | |
599c7c54 | 7884 | r = parse_boolean_argument("--discard=", optarg, &arg_discard); |
e594a3b1 | 7885 | if (r < 0) |
599c7c54 | 7886 | return r; |
e594a3b1 LP |
7887 | break; |
7888 | ||
7889 | case ARG_FACTORY_RESET: | |
c3470872 | 7890 | r = parse_boolean_argument("--factory-reset=", optarg, NULL); |
e594a3b1 | 7891 | if (r < 0) |
c3470872 | 7892 | return r; |
e594a3b1 LP |
7893 | arg_factory_reset = r; |
7894 | break; | |
7895 | ||
7896 | case ARG_CAN_FACTORY_RESET: | |
7897 | arg_can_factory_reset = true; | |
7898 | break; | |
7899 | ||
7900 | case ARG_ROOT: | |
252d6267 LP |
7901 | r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_root); |
7902 | if (r < 0) | |
7903 | return r; | |
7904 | break; | |
7905 | ||
7906 | case ARG_IMAGE: | |
7907 | r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_image); | |
e594a3b1 LP |
7908 | if (r < 0) |
7909 | return r; | |
7910 | break; | |
7911 | ||
06e78680 YW |
7912 | case ARG_IMAGE_POLICY: |
7913 | r = parse_image_policy_argument(optarg, &arg_image_policy); | |
7914 | if (r < 0) | |
7915 | return r; | |
7916 | break; | |
7917 | ||
e594a3b1 LP |
7918 | case ARG_SEED: |
7919 | if (isempty(optarg)) { | |
7920 | arg_seed = SD_ID128_NULL; | |
7921 | arg_randomize = false; | |
7922 | } else if (streq(optarg, "random")) | |
7923 | arg_randomize = true; | |
7924 | else { | |
7925 | r = sd_id128_from_string(optarg, &arg_seed); | |
7926 | if (r < 0) | |
7927 | return log_error_errno(r, "Failed to parse seed: %s", optarg); | |
7928 | ||
7929 | arg_randomize = false; | |
7930 | } | |
7931 | ||
7932 | break; | |
7933 | ||
7934 | case ARG_PRETTY: | |
c3470872 | 7935 | r = parse_boolean_argument("--pretty=", optarg, NULL); |
e594a3b1 | 7936 | if (r < 0) |
c3470872 | 7937 | return r; |
e594a3b1 LP |
7938 | arg_pretty = r; |
7939 | break; | |
7940 | ||
224c853f RP |
7941 | case ARG_DEFINITIONS: { |
7942 | _cleanup_free_ char *path = NULL; | |
7943 | r = parse_path_argument(optarg, false, &path); | |
e594a3b1 LP |
7944 | if (r < 0) |
7945 | return r; | |
224c853f RP |
7946 | if (strv_consume(&arg_definitions, TAKE_PTR(path)) < 0) |
7947 | return log_oom(); | |
e594a3b1 | 7948 | break; |
224c853f | 7949 | } |
e594a3b1 | 7950 | |
a26f4a49 LP |
7951 | case ARG_SIZE: { |
7952 | uint64_t parsed, rounded; | |
7953 | ||
170c9823 LP |
7954 | if (streq(optarg, "auto")) { |
7955 | arg_size = UINT64_MAX; | |
7956 | arg_size_auto = true; | |
7957 | break; | |
7958 | } | |
7959 | ||
a26f4a49 LP |
7960 | r = parse_size(optarg, 1024, &parsed); |
7961 | if (r < 0) | |
7962 | return log_error_errno(r, "Failed to parse --size= parameter: %s", optarg); | |
7963 | ||
7964 | rounded = round_up_size(parsed, 4096); | |
7965 | if (rounded == 0) | |
7966 | return log_error_errno(SYNTHETIC_ERRNO(ERANGE), "Specified image size too small, refusing."); | |
7967 | if (rounded == UINT64_MAX) | |
7968 | return log_error_errno(SYNTHETIC_ERRNO(ERANGE), "Specified image size too large, refusing."); | |
7969 | ||
7970 | if (rounded != parsed) | |
e2341b6b DT |
7971 | log_warning("Specified size is not a multiple of 4096, rounding up automatically. (%" PRIu64 " %s %" PRIu64 ")", |
7972 | parsed, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), rounded); | |
a26f4a49 LP |
7973 | |
7974 | arg_size = rounded; | |
170c9823 | 7975 | arg_size_auto = false; |
a26f4a49 LP |
7976 | break; |
7977 | } | |
b9df3536 | 7978 | |
a015fbe7 | 7979 | case ARG_JSON: |
b1e8f46c | 7980 | r = parse_json_argument(optarg, &arg_json_format_flags); |
6a01ea4a LP |
7981 | if (r <= 0) |
7982 | return r; | |
a015fbe7 TH |
7983 | |
7984 | break; | |
7985 | ||
b9df3536 LP |
7986 | case ARG_KEY_FILE: { |
7987 | _cleanup_(erase_and_freep) char *k = NULL; | |
7988 | size_t n = 0; | |
7989 | ||
8b3c3a49 | 7990 | r = read_full_file_full( |
986311c2 | 7991 | AT_FDCWD, optarg, UINT64_MAX, SIZE_MAX, |
8b3c3a49 LP |
7992 | READ_FULL_FILE_SECURE|READ_FULL_FILE_WARN_WORLD_READABLE|READ_FULL_FILE_CONNECT_SOCKET, |
7993 | NULL, | |
7994 | &k, &n); | |
b9df3536 LP |
7995 | if (r < 0) |
7996 | return log_error_errno(r, "Failed to read key file '%s': %m", optarg); | |
7997 | ||
7998 | erase_and_free(arg_key); | |
7999 | arg_key = TAKE_PTR(k); | |
8000 | arg_key_size = n; | |
8001 | break; | |
8002 | } | |
a26f4a49 | 8003 | |
b456191d | 8004 | case ARG_PRIVATE_KEY: { |
0a826408 | 8005 | r = free_and_strdup_warn(&private_key, optarg); |
b456191d | 8006 | if (r < 0) |
0a826408 LB |
8007 | return r; |
8008 | break; | |
8009 | } | |
b456191d | 8010 | |
a73144bb LB |
8011 | case ARG_PRIVATE_KEY_SOURCE: |
8012 | r = parse_openssl_key_source_argument( | |
8013 | optarg, | |
8014 | &arg_private_key_source, | |
8015 | &arg_private_key_source_type); | |
b456191d DDM |
8016 | if (r < 0) |
8017 | return r; | |
8018 | break; | |
b456191d DDM |
8019 | |
8020 | case ARG_CERTIFICATE: { | |
8021 | _cleanup_free_ char *cert = NULL; | |
8022 | size_t n = 0; | |
8023 | ||
8024 | r = read_full_file_full( | |
8025 | AT_FDCWD, optarg, UINT64_MAX, SIZE_MAX, | |
8026 | READ_FULL_FILE_CONNECT_SOCKET, | |
8027 | NULL, | |
8028 | &cert, &n); | |
8029 | if (r < 0) | |
8030 | return log_error_errno(r, "Failed to read certificate file '%s': %m", optarg); | |
8031 | ||
8032 | X509_free(arg_certificate); | |
8033 | arg_certificate = NULL; | |
8034 | r = parse_x509_certificate(cert, n, &arg_certificate); | |
8035 | if (r < 0) | |
8036 | return r; | |
8037 | break; | |
8038 | } | |
8039 | ||
889914ef LP |
8040 | case ARG_TPM2_DEVICE: { |
8041 | _cleanup_free_ char *device = NULL; | |
8042 | ||
8043 | if (streq(optarg, "list")) | |
8044 | return tpm2_list_devices(); | |
8045 | ||
8046 | if (!streq(optarg, "auto")) { | |
8047 | device = strdup(optarg); | |
8048 | if (!device) | |
8049 | return log_oom(); | |
8050 | } | |
8051 | ||
8052 | free(arg_tpm2_device); | |
8053 | arg_tpm2_device = TAKE_PTR(device); | |
8054 | break; | |
8055 | } | |
8056 | ||
78fdf0f6 LP |
8057 | case ARG_TPM2_DEVICE_KEY: |
8058 | r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_tpm2_device_key); | |
8059 | if (r < 0) | |
8060 | return r; | |
8061 | ||
8062 | break; | |
8063 | ||
8064 | case ARG_TPM2_SEAL_KEY_HANDLE: | |
8065 | r = safe_atou32_full(optarg, 16, &arg_tpm2_seal_key_handle); | |
8066 | if (r < 0) | |
8067 | return log_error_errno(r, "Could not parse TPM2 seal key handle index '%s': %m", optarg); | |
8068 | ||
8069 | break; | |
8070 | ||
222a951f | 8071 | case ARG_TPM2_PCRS: |
c588cf97 | 8072 | auto_hash_pcr_values = false; |
9e437994 | 8073 | r = tpm2_parse_pcr_argument_append(optarg, &arg_tpm2_hash_pcr_values, &arg_tpm2_n_hash_pcr_values); |
889914ef LP |
8074 | if (r < 0) |
8075 | return r; | |
8076 | ||
889914ef | 8077 | break; |
889914ef | 8078 | |
02ef97cd LP |
8079 | case ARG_TPM2_PUBLIC_KEY: |
8080 | r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_tpm2_public_key); | |
8081 | if (r < 0) | |
8082 | return r; | |
8083 | ||
8084 | break; | |
8085 | ||
8086 | case ARG_TPM2_PUBLIC_KEY_PCRS: | |
c588cf97 | 8087 | auto_public_key_pcr_mask = false; |
07c04061 | 8088 | r = tpm2_parse_pcr_argument_to_mask(optarg, &arg_tpm2_public_key_pcr_mask); |
02ef97cd LP |
8089 | if (r < 0) |
8090 | return r; | |
8091 | ||
8092 | break; | |
8093 | ||
404aea78 LP |
8094 | case ARG_TPM2_PCRLOCK: |
8095 | r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_tpm2_pcrlock); | |
8096 | if (r < 0) | |
8097 | return r; | |
8098 | ||
8099 | auto_pcrlock = false; | |
8100 | break; | |
8101 | ||
4cee8333 DDM |
8102 | case ARG_SPLIT: |
8103 | r = parse_boolean_argument("--split=", optarg, NULL); | |
8104 | if (r < 0) | |
8105 | return r; | |
8106 | ||
8107 | arg_split = r; | |
8108 | break; | |
8109 | ||
81d1098b DDM |
8110 | case ARG_INCLUDE_PARTITIONS: |
8111 | if (arg_filter_partitions_type == FILTER_PARTITIONS_EXCLUDE) | |
8112 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
8113 | "Combination of --include-partitions= and --exclude-partitions= is invalid."); | |
8114 | ||
220780db | 8115 | r = parse_partition_types(optarg, &arg_filter_partitions, &arg_n_filter_partitions); |
81d1098b DDM |
8116 | if (r < 0) |
8117 | return r; | |
8118 | ||
8119 | arg_filter_partitions_type = FILTER_PARTITIONS_INCLUDE; | |
8120 | ||
8121 | break; | |
8122 | ||
8123 | case ARG_EXCLUDE_PARTITIONS: | |
8124 | if (arg_filter_partitions_type == FILTER_PARTITIONS_INCLUDE) | |
8125 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
8126 | "Combination of --include-partitions= and --exclude-partitions= is invalid."); | |
8127 | ||
220780db | 8128 | r = parse_partition_types(optarg, &arg_filter_partitions, &arg_n_filter_partitions); |
81d1098b DDM |
8129 | if (r < 0) |
8130 | return r; | |
8131 | ||
8132 | arg_filter_partitions_type = FILTER_PARTITIONS_EXCLUDE; | |
8133 | ||
8134 | break; | |
8135 | ||
8275334b DDM |
8136 | case ARG_DEFER_PARTITIONS: |
8137 | r = parse_partition_types(optarg, &arg_defer_partitions, &arg_n_defer_partitions); | |
7d505753 DDM |
8138 | if (r < 0) |
8139 | return r; | |
8140 | ||
8141 | break; | |
8142 | ||
e1878ef7 DDM |
8143 | case ARG_SECTOR_SIZE: |
8144 | r = parse_sector_size(optarg, &arg_sector_size); | |
8145 | if (r < 0) | |
8146 | return r; | |
8147 | ||
8148 | break; | |
8149 | ||
9786dfe6 DDM |
8150 | case ARG_ARCHITECTURE: |
8151 | r = architecture_from_string(optarg); | |
8152 | if (r < 0) | |
4e494e6a | 8153 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid architecture '%s'.", optarg); |
9786dfe6 DDM |
8154 | |
8155 | arg_architecture = r; | |
8156 | break; | |
8157 | ||
fc10b158 DDM |
8158 | case ARG_OFFLINE: |
8159 | if (streq(optarg, "auto")) | |
8160 | arg_offline = -1; | |
8161 | else { | |
8162 | r = parse_boolean_argument("--offline=", optarg, NULL); | |
8163 | if (r < 0) | |
8164 | return r; | |
8165 | ||
8166 | arg_offline = r; | |
8167 | } | |
8168 | ||
8169 | break; | |
8170 | ||
e1536d1f DDM |
8171 | case ARG_COPY_FROM: { |
8172 | _cleanup_free_ char *p = NULL; | |
8173 | ||
8174 | r = parse_path_argument(optarg, /* suppress_root= */ false, &p); | |
1e46985a DDM |
8175 | if (r < 0) |
8176 | return r; | |
e1536d1f DDM |
8177 | |
8178 | if (strv_consume(&arg_copy_from, TAKE_PTR(p)) < 0) | |
8179 | return log_oom(); | |
8180 | ||
1e46985a | 8181 | break; |
e1536d1f | 8182 | } |
1e46985a | 8183 | |
607343a1 LP |
8184 | case 's': |
8185 | r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_copy_source); | |
8186 | if (r < 0) | |
8187 | return r; | |
8188 | break; | |
8189 | ||
a121b331 LP |
8190 | case ARG_MAKE_DDI: |
8191 | if (!filename_is_valid(optarg)) | |
8192 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid DDI type: %s", optarg); | |
8193 | ||
8194 | r = free_and_strdup_warn(&arg_make_ddi, optarg); | |
8195 | if (r < 0) | |
8196 | return r; | |
8197 | break; | |
8198 | ||
8199 | case 'S': | |
8200 | r = free_and_strdup_warn(&arg_make_ddi, "sysext"); | |
8201 | if (r < 0) | |
8202 | return r; | |
8203 | break; | |
8204 | ||
8205 | case 'C': | |
8206 | r = free_and_strdup_warn(&arg_make_ddi, "confext"); | |
8207 | if (r < 0) | |
8208 | return r; | |
8209 | break; | |
8210 | ||
8211 | case 'P': | |
8212 | r = free_and_strdup_warn(&arg_make_ddi, "portable"); | |
8213 | if (r < 0) | |
8214 | return r; | |
8215 | break; | |
8216 | ||
1a0541d4 DDM |
8217 | case ARG_GENERATE_FSTAB: |
8218 | r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_generate_fstab); | |
8219 | if (r < 0) | |
8220 | return r; | |
8221 | break; | |
8222 | ||
8223 | case ARG_GENERATE_CRYPTTAB: | |
8224 | r = parse_path_argument(optarg, /* suppress_root= */ false, &arg_generate_crypttab); | |
8225 | if (r < 0) | |
8226 | return r; | |
8227 | break; | |
8228 | ||
3a37a13a LP |
8229 | case ARG_LIST_DEVICES: |
8230 | r = blockdev_list(BLOCKDEV_LIST_REQUIRE_PARTITION_SCANNING|BLOCKDEV_LIST_SHOW_SYMLINKS|BLOCKDEV_LIST_IGNORE_ZRAM); | |
8231 | if (r < 0) | |
8232 | return r; | |
8233 | ||
8234 | return 0; | |
8235 | ||
e594a3b1 LP |
8236 | case '?': |
8237 | return -EINVAL; | |
8238 | ||
8239 | default: | |
04499a70 | 8240 | assert_not_reached(); |
e594a3b1 LP |
8241 | } |
8242 | ||
8243 | if (argc - optind > 1) | |
8244 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
37a38788 | 8245 | "Expected at most one argument, the path to the block device or image file."); |
e594a3b1 | 8246 | |
a121b331 LP |
8247 | if (arg_make_ddi) { |
8248 | if (arg_definitions) | |
8249 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Combination of --make-ddi= and --definitions= is not supported."); | |
8250 | if (!IN_SET(arg_empty, EMPTY_UNSET, EMPTY_CREATE)) | |
634b8471 | 8251 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Combination of --make-ddi= and --empty=%s is not supported.", empty_mode_to_string(arg_empty)); |
a121b331 LP |
8252 | |
8253 | /* Imply automatic sizing in DDI mode */ | |
8254 | if (arg_size == UINT64_MAX) | |
8255 | arg_size_auto = true; | |
8256 | ||
8257 | if (!arg_copy_source) | |
8258 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No --copy-source= specified, refusing."); | |
8259 | ||
8260 | r = dir_is_empty(arg_copy_source, /* ignore_hidden_or_backup= */ false); | |
8261 | if (r < 0) | |
8262 | return log_error_errno(r, "Failed to determine if '%s' is empty: %m", arg_copy_source); | |
8263 | if (r > 0) | |
8264 | return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "Source directory '%s' is empty, refusing to create empty image.", arg_copy_source); | |
8265 | ||
8266 | if (sd_id128_is_null(arg_seed) && !arg_randomize) { | |
8267 | /* We don't want that /etc/machine-id leaks into any image built this way, hence | |
8268 | * let's randomize the seed if not specified explicitly */ | |
8269 | log_notice("No seed value specified, randomizing generated UUIDs, resulting image will not be reproducible."); | |
8270 | arg_randomize = true; | |
8271 | } | |
8272 | ||
8273 | arg_empty = EMPTY_CREATE; | |
8274 | } | |
8275 | ||
243dd1e9 LP |
8276 | if (arg_empty == EMPTY_UNSET) /* default to refuse mode, if not otherwise specified */ |
8277 | arg_empty = EMPTY_REFUSE; | |
8278 | ||
a26f4a49 | 8279 | if (arg_factory_reset > 0 && IN_SET(arg_empty, EMPTY_FORCE, EMPTY_REQUIRE, EMPTY_CREATE)) |
e594a3b1 | 8280 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
a26f4a49 | 8281 | "Combination of --factory-reset=yes and --empty=force/--empty=require/--empty=create is invalid."); |
e594a3b1 LP |
8282 | |
8283 | if (arg_can_factory_reset) | |
a26f4a49 LP |
8284 | arg_dry_run = true; /* When --can-factory-reset is specified we don't make changes, hence |
8285 | * non-dry-run mode makes no sense. Thus, imply dry run mode so that we | |
8286 | * open things strictly read-only. */ | |
ba6bd342 LP |
8287 | else if (arg_empty == EMPTY_CREATE) |
8288 | arg_dry_run = false; /* Imply --dry-run=no if we create the loopback file anew. After all we | |
8289 | * cannot really break anyone's partition tables that way. */ | |
a26f4a49 | 8290 | |
6c05395e LP |
8291 | /* Disable pager once we are not just reviewing, but doing things. */ |
8292 | if (!arg_dry_run) | |
8293 | arg_pager_flags |= PAGER_DISABLE; | |
8294 | ||
248f0186 | 8295 | if (arg_empty == EMPTY_CREATE && arg_size == UINT64_MAX && !arg_size_auto) |
a26f4a49 LP |
8296 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
8297 | "If --empty=create is specified, --size= must be specified, too."); | |
e594a3b1 | 8298 | |
252d6267 LP |
8299 | if (arg_image && arg_root) |
8300 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported."); | |
8301 | else if (!arg_image && !arg_root && in_initrd()) { | |
8f47e32a LP |
8302 | |
8303 | /* By default operate on /sysusr/ or /sysroot/ when invoked in the initrd. We prefer the | |
8304 | * former, if it is mounted, so that we have deterministic behaviour on systems where /usr/ | |
8305 | * is vendor-supplied but the root fs formatted on first boot. */ | |
b409aacb | 8306 | r = path_is_mount_point("/sysusr/usr"); |
8f47e32a LP |
8307 | if (r <= 0) { |
8308 | if (r < 0 && r != -ENOENT) | |
8309 | log_debug_errno(r, "Unable to determine whether /sysusr/usr is a mount point, assuming it is not: %m"); | |
8310 | ||
8311 | arg_root = strdup("/sysroot"); | |
8312 | } else | |
8313 | arg_root = strdup("/sysusr"); | |
252d6267 LP |
8314 | if (!arg_root) |
8315 | return log_oom(); | |
8316 | } | |
8317 | ||
ecb4c5a6 AAF |
8318 | if (argc > optind) { |
8319 | arg_node = strdup(argv[optind]); | |
8320 | if (!arg_node) | |
8321 | return log_oom(); | |
8322 | } | |
a26f4a49 | 8323 | |
252d6267 | 8324 | if (IN_SET(arg_empty, EMPTY_FORCE, EMPTY_REQUIRE, EMPTY_CREATE) && !arg_node && !arg_image) |
a26f4a49 | 8325 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
37a38788 | 8326 | "A path to a device node or image file must be specified when --make-ddi=, --empty=force, --empty=require or --empty=create are used."); |
a26f4a49 | 8327 | |
4cee8333 DDM |
8328 | if (arg_split && !arg_node) |
8329 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
37a38788 | 8330 | "A path to an image file must be specified when --split is used."); |
4cee8333 | 8331 | |
404aea78 LP |
8332 | if (auto_pcrlock) { |
8333 | assert(!arg_tpm2_pcrlock); | |
8334 | ||
8335 | r = tpm2_pcrlock_search_file(NULL, NULL, &arg_tpm2_pcrlock); | |
8336 | if (r < 0) { | |
8337 | if (r != -ENOENT) | |
8338 | log_warning_errno(r, "Search for pcrlock.json failed, assuming it does not exist: %m"); | |
8339 | } else | |
dc7e34b3 | 8340 | log_debug("Automatically using pcrlock policy '%s'.", arg_tpm2_pcrlock); |
404aea78 LP |
8341 | } |
8342 | ||
2e9f6072 | 8343 | if (auto_public_key_pcr_mask) { |
c588cf97 | 8344 | assert(arg_tpm2_public_key_pcr_mask == 0); |
2099cd62 | 8345 | arg_tpm2_public_key_pcr_mask = INDEX_TO_MASK(uint32_t, TPM2_PCR_KERNEL_BOOT); |
c588cf97 | 8346 | } |
9e437994 | 8347 | |
404aea78 | 8348 | if (auto_hash_pcr_values && !arg_tpm2_pcrlock) { /* Only lock to PCR 7 if no pcr policy is specified. */ |
c588cf97 LP |
8349 | assert(arg_tpm2_n_hash_pcr_values == 0); |
8350 | ||
8351 | if (!GREEDY_REALLOC_APPEND( | |
8352 | arg_tpm2_hash_pcr_values, | |
8353 | arg_tpm2_n_hash_pcr_values, | |
8354 | &TPM2_PCR_VALUE_MAKE(TPM2_PCR_INDEX_DEFAULT, /* hash= */ 0, /* value= */ {}), | |
8355 | 1)) | |
8356 | return log_oom(); | |
8357 | } | |
889914ef | 8358 | |
300b7e76 | 8359 | if (arg_pretty < 0 && isatty_safe(STDOUT_FILENO)) |
a26d463d DDM |
8360 | arg_pretty = true; |
8361 | ||
9786dfe6 DDM |
8362 | if (arg_architecture >= 0) { |
8363 | FOREACH_ARRAY(p, arg_filter_partitions, arg_n_filter_partitions) | |
8364 | *p = gpt_partition_type_override_architecture(*p, arg_architecture); | |
8365 | ||
8366 | FOREACH_ARRAY(p, arg_defer_partitions, arg_n_defer_partitions) | |
8367 | *p = gpt_partition_type_override_architecture(*p, arg_architecture); | |
8368 | } | |
8369 | ||
a73144bb | 8370 | if (private_key && arg_private_key_source_type == OPENSSL_KEY_SOURCE_FILE) { |
0a826408 LB |
8371 | _cleanup_(erase_and_freep) char *k = NULL; |
8372 | size_t n = 0; | |
8373 | ||
8374 | r = read_full_file_full( | |
8375 | AT_FDCWD, private_key, UINT64_MAX, SIZE_MAX, | |
8376 | READ_FULL_FILE_SECURE|READ_FULL_FILE_WARN_WORLD_READABLE|READ_FULL_FILE_CONNECT_SOCKET, | |
8377 | NULL, | |
8378 | &k, &n); | |
8379 | if (r < 0) | |
8380 | return log_error_errno(r, "Failed to read key file '%s': %m", private_key); | |
8381 | ||
8382 | r = parse_private_key(k, n, &arg_private_key); | |
8383 | if (r < 0) | |
8384 | return r; | |
a73144bb LB |
8385 | } else if (private_key && |
8386 | IN_SET(arg_private_key_source_type, OPENSSL_KEY_SOURCE_ENGINE, OPENSSL_KEY_SOURCE_PROVIDER)) { | |
0a826408 LB |
8387 | /* This must happen after parse_x509_certificate() is called above, otherwise |
8388 | * signing later will get stuck as the parsed private key won't have the | |
8389 | * certificate, so this block cannot be inline in ARG_PRIVATE_KEY. */ | |
a73144bb LB |
8390 | r = openssl_load_key_from_token( |
8391 | arg_private_key_source_type, | |
8392 | arg_private_key_source, | |
8393 | private_key, | |
8394 | &arg_private_key); | |
0a826408 LB |
8395 | if (r < 0) |
8396 | return log_error_errno( | |
8397 | r, | |
a73144bb LB |
8398 | "Failed to load key '%s' from OpenSSL private key source %s: %m", |
8399 | private_key, | |
8400 | arg_private_key_source); | |
0a826408 LB |
8401 | } |
8402 | ||
e594a3b1 LP |
8403 | return 1; |
8404 | } | |
8405 | ||
8406 | static int parse_proc_cmdline_factory_reset(void) { | |
8407 | bool b; | |
8408 | int r; | |
8409 | ||
8410 | if (arg_factory_reset >= 0) /* Never override what is specified on the process command line */ | |
8411 | return 0; | |
8412 | ||
8413 | if (!in_initrd()) /* Never honour kernel command line factory reset request outside of the initrd */ | |
8414 | return 0; | |
8415 | ||
3787934b | 8416 | r = proc_cmdline_get_bool("systemd.factory_reset", /* flags = */ 0, &b); |
e594a3b1 LP |
8417 | if (r < 0) |
8418 | return log_error_errno(r, "Failed to parse systemd.factory_reset kernel command line argument: %m"); | |
8419 | if (r > 0) { | |
8420 | arg_factory_reset = b; | |
8421 | ||
8422 | if (b) | |
8423 | log_notice("Honouring factory reset requested via kernel command line."); | |
8424 | } | |
8425 | ||
8426 | return 0; | |
8427 | } | |
8428 | ||
8429 | static int parse_efi_variable_factory_reset(void) { | |
8430 | _cleanup_free_ char *value = NULL; | |
8431 | int r; | |
8432 | ||
8433 | if (arg_factory_reset >= 0) /* Never override what is specified on the process command line */ | |
8434 | return 0; | |
8435 | ||
8436 | if (!in_initrd()) /* Never honour EFI variable factory reset request outside of the initrd */ | |
8437 | return 0; | |
8438 | ||
e6f055cb | 8439 | r = efi_get_variable_string(EFI_SYSTEMD_VARIABLE(FactoryReset), &value); |
6ce691c3 DL |
8440 | if (r < 0) { |
8441 | if (r == -ENOENT || ERRNO_IS_NOT_SUPPORTED(r)) | |
8442 | return 0; | |
e594a3b1 | 8443 | return log_error_errno(r, "Failed to read EFI variable FactoryReset: %m"); |
6ce691c3 | 8444 | } |
e594a3b1 LP |
8445 | |
8446 | r = parse_boolean(value); | |
8447 | if (r < 0) | |
8448 | return log_error_errno(r, "Failed to parse EFI variable FactoryReset: %m"); | |
8449 | ||
8450 | arg_factory_reset = r; | |
8451 | if (r) | |
111a3aae | 8452 | log_notice("Factory reset requested via EFI variable FactoryReset."); |
e594a3b1 LP |
8453 | |
8454 | return 0; | |
8455 | } | |
8456 | ||
8457 | static int remove_efi_variable_factory_reset(void) { | |
8458 | int r; | |
8459 | ||
e6f055cb | 8460 | r = efi_set_variable(EFI_SYSTEMD_VARIABLE(FactoryReset), NULL, 0); |
6ce691c3 DL |
8461 | if (r < 0) { |
8462 | if (r == -ENOENT || ERRNO_IS_NOT_SUPPORTED(r)) | |
8463 | return 0; | |
e594a3b1 | 8464 | return log_error_errno(r, "Failed to remove EFI variable FactoryReset: %m"); |
6ce691c3 | 8465 | } |
e594a3b1 LP |
8466 | |
8467 | log_info("Successfully unset EFI variable FactoryReset."); | |
8468 | return 0; | |
8469 | } | |
8470 | ||
252d6267 LP |
8471 | static int acquire_root_devno( |
8472 | const char *p, | |
8473 | const char *root, | |
8474 | int mode, | |
8475 | char **ret, | |
8476 | int *ret_fd) { | |
8477 | ||
37734dc6 | 8478 | _cleanup_free_ char *found_path = NULL, *node = NULL; |
252d6267 | 8479 | dev_t devno, fd_devno = MODE_INVALID; |
254d1313 | 8480 | _cleanup_close_ int fd = -EBADF; |
e594a3b1 | 8481 | struct stat st; |
e594a3b1 LP |
8482 | int r; |
8483 | ||
a26f4a49 LP |
8484 | assert(p); |
8485 | assert(ret); | |
8486 | assert(ret_fd); | |
8487 | ||
f461a28d | 8488 | fd = chase_and_open(p, root, CHASE_PREFIX_ROOT, mode, &found_path); |
e594a3b1 | 8489 | if (fd < 0) |
252d6267 | 8490 | return fd; |
e594a3b1 LP |
8491 | |
8492 | if (fstat(fd, &st) < 0) | |
8493 | return -errno; | |
8494 | ||
8495 | if (S_ISREG(st.st_mode)) { | |
252d6267 | 8496 | *ret = TAKE_PTR(found_path); |
a26f4a49 | 8497 | *ret_fd = TAKE_FD(fd); |
e594a3b1 LP |
8498 | return 0; |
8499 | } | |
8500 | ||
252d6267 LP |
8501 | if (S_ISBLK(st.st_mode)) { |
8502 | /* Refuse referencing explicit block devices if a root dir is specified, after all we should | |
5c08da58 | 8503 | * not be able to leave the image the root path constrains us to. */ |
252d6267 LP |
8504 | if (root) |
8505 | return -EPERM; | |
8506 | ||
a26f4a49 | 8507 | fd_devno = devno = st.st_rdev; |
252d6267 | 8508 | } else if (S_ISDIR(st.st_mode)) { |
e594a3b1 LP |
8509 | |
8510 | devno = st.st_dev; | |
a26f4a49 | 8511 | if (major(devno) == 0) { |
e594a3b1 LP |
8512 | r = btrfs_get_block_device_fd(fd, &devno); |
8513 | if (r == -ENOTTY) /* not btrfs */ | |
8514 | return -ENODEV; | |
8515 | if (r < 0) | |
8516 | return r; | |
8517 | } | |
e594a3b1 LP |
8518 | } else |
8519 | return -ENOTBLK; | |
8520 | ||
8521 | /* From dm-crypt to backing partition */ | |
8522 | r = block_get_originating(devno, &devno); | |
8e5f3cec LP |
8523 | if (r == -ENOENT) |
8524 | log_debug_errno(r, "Device '%s' has no dm-crypt/dm-verity device, no need to look for underlying block device.", p); | |
8525 | else if (r < 0) | |
e594a3b1 LP |
8526 | log_debug_errno(r, "Failed to find underlying block device for '%s', ignoring: %m", p); |
8527 | ||
8528 | /* From partition to whole disk containing it */ | |
8529 | r = block_get_whole_disk(devno, &devno); | |
8530 | if (r < 0) | |
162392b7 | 8531 | log_debug_errno(r, "Failed to find whole disk block device for '%s', ignoring: %m", p); |
e594a3b1 | 8532 | |
37734dc6 | 8533 | r = devname_from_devnum(S_IFBLK, devno, &node); |
a26f4a49 LP |
8534 | if (r < 0) |
8535 | return log_debug_errno(r, "Failed to determine canonical path for '%s': %m", p); | |
8536 | ||
6bbae9f8 | 8537 | /* Only if we still look at the same block device we can reuse the fd. Otherwise return an |
a26f4a49 | 8538 | * invalidated fd. */ |
37734dc6 YW |
8539 | if (fd_devno != MODE_INVALID && fd_devno == devno) { |
8540 | /* Tell udev not to interfere while we are processing the device */ | |
8541 | if (flock(fd, arg_dry_run ? LOCK_SH : LOCK_EX) < 0) | |
8542 | return log_error_errno(errno, "Failed to lock device '%s': %m", node); | |
8543 | ||
8544 | *ret_fd = TAKE_FD(fd); | |
8545 | } else | |
8546 | *ret_fd = -EBADF; | |
8547 | ||
8548 | *ret = TAKE_PTR(node); | |
a26f4a49 | 8549 | return 0; |
e594a3b1 LP |
8550 | } |
8551 | ||
cc751c75 | 8552 | static int find_root(Context *context) { |
54632d2e | 8553 | _cleanup_free_ char *device = NULL; |
5980d463 | 8554 | int r; |
e594a3b1 | 8555 | |
cc751c75 | 8556 | assert(context); |
a26f4a49 | 8557 | |
e594a3b1 | 8558 | if (arg_node) { |
a26f4a49 | 8559 | if (arg_empty == EMPTY_CREATE) { |
254d1313 | 8560 | _cleanup_close_ int fd = -EBADF; |
a26f4a49 LP |
8561 | _cleanup_free_ char *s = NULL; |
8562 | ||
8563 | s = strdup(arg_node); | |
8564 | if (!s) | |
8565 | return log_oom(); | |
8566 | ||
4dee4e00 | 8567 | fd = xopenat_full(AT_FDCWD, arg_node, O_RDONLY|O_CREAT|O_EXCL|O_CLOEXEC|O_NOFOLLOW, XO_NOCOW, 0666); |
a26f4a49 LP |
8568 | if (fd < 0) |
8569 | return log_error_errno(errno, "Failed to create '%s': %m", arg_node); | |
8570 | ||
cc751c75 | 8571 | context->node = TAKE_PTR(s); |
db1d4e6b | 8572 | context->node_is_our_file = true; |
cc751c75 | 8573 | context->backing_fd = TAKE_FD(fd); |
a26f4a49 LP |
8574 | return 0; |
8575 | } | |
8576 | ||
252d6267 LP |
8577 | /* Note that we don't specify a root argument here: if the user explicitly configured a node |
8578 | * we'll take it relative to the host, not the image */ | |
cc751c75 | 8579 | r = acquire_root_devno(arg_node, NULL, O_RDONLY|O_CLOEXEC, &context->node, &context->backing_fd); |
67f0ac8c LP |
8580 | if (r == -EUCLEAN) |
8581 | return btrfs_log_dev_root(LOG_ERR, r, arg_node); | |
e594a3b1 | 8582 | if (r < 0) |
aa2a74ad | 8583 | return log_error_errno(r, "Failed to open file or determine backing device of %s: %m", arg_node); |
e594a3b1 LP |
8584 | |
8585 | return 0; | |
8586 | } | |
8587 | ||
a26f4a49 LP |
8588 | assert(IN_SET(arg_empty, EMPTY_REFUSE, EMPTY_ALLOW)); |
8589 | ||
54632d2e KK |
8590 | /* If the root mount has been replaced by some form of volatile file system (overlayfs), the |
8591 | * original root block device node is symlinked in /run/systemd/volatile-root. Let's read that | |
8592 | * here. */ | |
8593 | r = readlink_malloc("/run/systemd/volatile-root", &device); | |
8594 | if (r == -ENOENT) { /* volatile-root not found */ | |
8595 | /* Let's search for the root device. We look for two cases here: first in /, and then in /usr. The | |
8596 | * latter we check for cases where / is a tmpfs and only /usr is an actual persistent block device | |
8597 | * (think: volatile setups) */ | |
e594a3b1 | 8598 | |
54632d2e | 8599 | FOREACH_STRING(p, "/", "/usr") { |
e594a3b1 | 8600 | |
cc751c75 DDM |
8601 | r = acquire_root_devno(p, arg_root, O_RDONLY|O_DIRECTORY|O_CLOEXEC, &context->node, |
8602 | &context->backing_fd); | |
54632d2e KK |
8603 | if (r < 0) { |
8604 | if (r == -EUCLEAN) | |
8605 | return btrfs_log_dev_root(LOG_ERR, r, p); | |
8606 | if (r != -ENODEV) | |
0b6891ab | 8607 | return log_error_errno(r, "Failed to determine backing device of %s%s: %m", strempty(arg_root), p); |
54632d2e KK |
8608 | } else |
8609 | return 0; | |
8610 | } | |
8611 | } else if (r < 0) | |
8612 | return log_error_errno(r, "Failed to read symlink /run/systemd/volatile-root: %m"); | |
8613 | else { | |
cc751c75 | 8614 | r = acquire_root_devno(device, NULL, O_RDONLY|O_CLOEXEC, &context->node, &context->backing_fd); |
54632d2e KK |
8615 | if (r == -EUCLEAN) |
8616 | return btrfs_log_dev_root(LOG_ERR, r, device); | |
8617 | if (r < 0) | |
8618 | return log_error_errno(r, "Failed to open file or determine backing device of %s: %m", device); | |
8619 | ||
8620 | return 0; | |
e594a3b1 LP |
8621 | } |
8622 | ||
8623 | return log_error_errno(SYNTHETIC_ERRNO(ENODEV), "Failed to discover root block device."); | |
8624 | } | |
8625 | ||
81dde3d8 | 8626 | static int resize_pt(int fd, uint64_t sector_size) { |
f9b3afae LP |
8627 | _cleanup_(fdisk_unref_contextp) struct fdisk_context *c = NULL; |
8628 | int r; | |
8629 | ||
8630 | /* After resizing the backing file we need to resize the partition table itself too, so that it takes | |
8631 | * possession of the enlarged backing file. For this it suffices to open the device with libfdisk and | |
8632 | * immediately write it again, with no changes. */ | |
8633 | ||
fd9fe57a | 8634 | r = fdisk_new_context_at(fd, /* path= */ NULL, /* read_only= */ false, sector_size, &c); |
f9b3afae | 8635 | if (r < 0) |
ddb6eeaf | 8636 | return log_error_errno(r, "Failed to open device '%s': %m", FORMAT_PROC_FD_PATH(fd)); |
f9b3afae LP |
8637 | |
8638 | r = fdisk_has_label(c); | |
8639 | if (r < 0) | |
ddb6eeaf | 8640 | return log_error_errno(r, "Failed to determine whether disk '%s' has a disk label: %m", FORMAT_PROC_FD_PATH(fd)); |
f9b3afae LP |
8641 | if (r == 0) { |
8642 | log_debug("Not resizing partition table, as there currently is none."); | |
8643 | return 0; | |
8644 | } | |
8645 | ||
8646 | r = fdisk_write_disklabel(c); | |
8647 | if (r < 0) | |
8648 | return log_error_errno(r, "Failed to write resized partition table: %m"); | |
8649 | ||
8650 | log_info("Resized partition table."); | |
8651 | return 1; | |
8652 | } | |
8653 | ||
252d6267 LP |
8654 | static int resize_backing_fd( |
8655 | const char *node, /* The primary way we access the disk image to operate on */ | |
8656 | int *fd, /* An O_RDONLY fd referring to that inode */ | |
8657 | const char *backing_file, /* If the above refers to a loopback device, the backing regular file for that, which we can grow */ | |
81dde3d8 LP |
8658 | LoopDevice *loop_device, |
8659 | uint64_t sector_size) { | |
252d6267 | 8660 | |
254d1313 | 8661 | _cleanup_close_ int writable_fd = -EBADF; |
252d6267 | 8662 | uint64_t current_size; |
a26f4a49 LP |
8663 | struct stat st; |
8664 | int r; | |
8665 | ||
8666 | assert(node); | |
8667 | assert(fd); | |
8668 | ||
8669 | if (arg_size == UINT64_MAX) /* Nothing to do */ | |
8670 | return 0; | |
8671 | ||
8672 | if (*fd < 0) { | |
8673 | /* Open the file if we haven't opened it yet. Note that we open it read-only here, just to | |
8674 | * keep a reference to the file we can pass around. */ | |
8675 | *fd = open(node, O_RDONLY|O_CLOEXEC); | |
8676 | if (*fd < 0) | |
8677 | return log_error_errno(errno, "Failed to open '%s' in order to adjust size: %m", node); | |
8678 | } | |
8679 | ||
8680 | if (fstat(*fd, &st) < 0) | |
8681 | return log_error_errno(errno, "Failed to stat '%s': %m", node); | |
8682 | ||
252d6267 LP |
8683 | if (S_ISBLK(st.st_mode)) { |
8684 | if (!backing_file) | |
8685 | return log_error_errno(SYNTHETIC_ERRNO(EBADF), "Cannot resize block device '%s'.", node); | |
8686 | ||
8687 | assert(loop_device); | |
a26f4a49 | 8688 | |
01db9c85 LP |
8689 | r = blockdev_get_device_size(*fd, ¤t_size); |
8690 | if (r < 0) | |
8691 | return log_error_errno(r, "Failed to determine size of block device %s: %m", node); | |
252d6267 LP |
8692 | } else { |
8693 | r = stat_verify_regular(&st); | |
8694 | if (r < 0) | |
8695 | return log_error_errno(r, "Specified path '%s' is not a regular file or loopback block device, cannot resize: %m", node); | |
8696 | ||
8697 | assert(!backing_file); | |
8698 | assert(!loop_device); | |
8699 | current_size = st.st_size; | |
8700 | } | |
8701 | ||
252d6267 | 8702 | if (current_size >= arg_size) { |
2b59bf51 ZJS |
8703 | log_info("File '%s' already is of requested size or larger, not growing. (%s >= %s)", |
8704 | node, FORMAT_BYTES(current_size), FORMAT_BYTES(arg_size)); | |
a26f4a49 LP |
8705 | return 0; |
8706 | } | |
8707 | ||
252d6267 LP |
8708 | if (S_ISBLK(st.st_mode)) { |
8709 | assert(backing_file); | |
8710 | ||
8711 | /* This is a loopback device. We can't really grow those directly, but we can grow the | |
8712 | * backing file, hence let's do that. */ | |
8713 | ||
8714 | writable_fd = open(backing_file, O_WRONLY|O_CLOEXEC|O_NONBLOCK); | |
8715 | if (writable_fd < 0) | |
8716 | return log_error_errno(errno, "Failed to open backing file '%s': %m", backing_file); | |
8717 | ||
8718 | if (fstat(writable_fd, &st) < 0) | |
8719 | return log_error_errno(errno, "Failed to stat() backing file '%s': %m", backing_file); | |
8720 | ||
8721 | r = stat_verify_regular(&st); | |
8722 | if (r < 0) | |
8723 | return log_error_errno(r, "Backing file '%s' of block device is not a regular file: %m", backing_file); | |
8724 | ||
8725 | if ((uint64_t) st.st_size != current_size) | |
8726 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
2b59bf51 ZJS |
8727 | "Size of backing file '%s' of loopback block device '%s' don't match, refusing.", |
8728 | node, backing_file); | |
252d6267 LP |
8729 | } else { |
8730 | assert(S_ISREG(st.st_mode)); | |
8731 | assert(!backing_file); | |
a26f4a49 | 8732 | |
252d6267 LP |
8733 | /* The file descriptor is read-only. In order to grow the file we need to have a writable fd. We |
8734 | * reopen the file for that temporarily. We keep the writable fd only open for this operation though, | |
8735 | * as fdisk can't accept it anyway. */ | |
8736 | ||
8737 | writable_fd = fd_reopen(*fd, O_WRONLY|O_CLOEXEC); | |
8738 | if (writable_fd < 0) | |
8739 | return log_error_errno(writable_fd, "Failed to reopen backing file '%s' writable: %m", node); | |
8740 | } | |
a26f4a49 LP |
8741 | |
8742 | if (!arg_discard) { | |
8743 | if (fallocate(writable_fd, 0, 0, arg_size) < 0) { | |
8744 | if (!ERRNO_IS_NOT_SUPPORTED(errno)) | |
8745 | return log_error_errno(errno, "Failed to grow '%s' from %s to %s by allocation: %m", | |
2b59bf51 | 8746 | node, FORMAT_BYTES(current_size), FORMAT_BYTES(arg_size)); |
a26f4a49 LP |
8747 | |
8748 | /* Fallback to truncation, if fallocate() is not supported. */ | |
8749 | log_debug("Backing file system does not support fallocate(), falling back to ftruncate()."); | |
8750 | } else { | |
252d6267 | 8751 | if (current_size == 0) /* Likely regular file just created by us */ |
2b59bf51 | 8752 | log_info("Allocated %s for '%s'.", FORMAT_BYTES(arg_size), node); |
a26f4a49 | 8753 | else |
2b59bf51 ZJS |
8754 | log_info("File '%s' grown from %s to %s by allocation.", |
8755 | node, FORMAT_BYTES(current_size), FORMAT_BYTES(arg_size)); | |
a26f4a49 | 8756 | |
252d6267 | 8757 | goto done; |
a26f4a49 LP |
8758 | } |
8759 | } | |
8760 | ||
8761 | if (ftruncate(writable_fd, arg_size) < 0) | |
8762 | return log_error_errno(errno, "Failed to grow '%s' from %s to %s by truncation: %m", | |
2b59bf51 | 8763 | node, FORMAT_BYTES(current_size), FORMAT_BYTES(arg_size)); |
a26f4a49 | 8764 | |
252d6267 | 8765 | if (current_size == 0) /* Likely regular file just created by us */ |
2b59bf51 | 8766 | log_info("Sized '%s' to %s.", node, FORMAT_BYTES(arg_size)); |
252d6267 | 8767 | else |
2b59bf51 ZJS |
8768 | log_info("File '%s' grown from %s to %s by truncation.", |
8769 | node, FORMAT_BYTES(current_size), FORMAT_BYTES(arg_size)); | |
252d6267 LP |
8770 | |
8771 | done: | |
81dde3d8 | 8772 | r = resize_pt(writable_fd, sector_size); |
f9b3afae LP |
8773 | if (r < 0) |
8774 | return r; | |
8775 | ||
252d6267 LP |
8776 | if (loop_device) { |
8777 | r = loop_device_refresh_size(loop_device, UINT64_MAX, arg_size); | |
8778 | if (r < 0) | |
8779 | return log_error_errno(r, "Failed to update loop device size: %m"); | |
8780 | } | |
a26f4a49 LP |
8781 | |
8782 | return 1; | |
8783 | } | |
8784 | ||
170c9823 | 8785 | static int determine_auto_size(Context *c) { |
994b3031 | 8786 | uint64_t sum; |
170c9823 | 8787 | |
ac33e147 | 8788 | assert(c); |
170c9823 | 8789 | |
994b3031 LP |
8790 | sum = round_up_size(GPT_METADATA_SIZE, 4096); |
8791 | ||
170c9823 LP |
8792 | LIST_FOREACH(partitions, p, c->partitions) { |
8793 | uint64_t m; | |
8794 | ||
2cb9c68c | 8795 | if (p->dropped || PARTITION_SUPPRESSED(p)) |
170c9823 LP |
8796 | continue; |
8797 | ||
994b3031 | 8798 | m = partition_min_size_with_padding(c, p); |
170c9823 LP |
8799 | if (m > UINT64_MAX - sum) |
8800 | return log_error_errno(SYNTHETIC_ERRNO(EOVERFLOW), "Image would grow too large, refusing."); | |
8801 | ||
8802 | sum += m; | |
8803 | } | |
8804 | ||
2b59bf51 ZJS |
8805 | if (c->total != UINT64_MAX) |
8806 | /* Image already allocated? Then show its size. */ | |
8807 | log_info("Automatically determined minimal disk image size as %s, current image size is %s.", | |
8808 | FORMAT_BYTES(sum), FORMAT_BYTES(c->total)); | |
8809 | else | |
8810 | /* If the image is being created right now, then it has no previous size, suppress any comment about it hence. */ | |
8811 | log_info("Automatically determined minimal disk image size as %s.", | |
8812 | FORMAT_BYTES(sum)); | |
170c9823 LP |
8813 | |
8814 | arg_size = sum; | |
8815 | return 0; | |
8816 | } | |
8817 | ||
e594a3b1 | 8818 | static int run(int argc, char *argv[]) { |
252d6267 | 8819 | _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL; |
a4b3e942 | 8820 | _cleanup_(umount_and_freep) char *mounted_dir = NULL; |
e594a3b1 | 8821 | _cleanup_(context_freep) Context* context = NULL; |
cc751c75 | 8822 | bool node_is_our_loop = false; |
e594a3b1 LP |
8823 | int r; |
8824 | ||
aa976d87 | 8825 | log_setup(); |
e594a3b1 | 8826 | |
e594a3b1 LP |
8827 | r = parse_argv(argc, argv); |
8828 | if (r <= 0) | |
8829 | return r; | |
8830 | ||
8831 | r = parse_proc_cmdline_factory_reset(); | |
8832 | if (r < 0) | |
8833 | return r; | |
8834 | ||
8835 | r = parse_efi_variable_factory_reset(); | |
8836 | if (r < 0) | |
8837 | return r; | |
8838 | ||
30f19400 LP |
8839 | #if HAVE_LIBCRYPTSETUP |
8840 | cryptsetup_enable_logging(NULL); | |
8841 | #endif | |
8842 | ||
252d6267 LP |
8843 | if (arg_image) { |
8844 | assert(!arg_root); | |
8845 | ||
8846 | /* Mount this strictly read-only: we shall modify the partition table, not the file | |
8847 | * systems */ | |
8848 | r = mount_image_privately_interactively( | |
8849 | arg_image, | |
84be0c71 | 8850 | arg_image_policy, |
252d6267 LP |
8851 | DISSECT_IMAGE_MOUNT_READ_ONLY | |
8852 | (arg_node ? DISSECT_IMAGE_DEVICE_READ_ONLY : 0) | /* If a different node to make changes to is specified let's open the device in read-only mode) */ | |
8853 | DISSECT_IMAGE_GPT_ONLY | | |
8854 | DISSECT_IMAGE_RELAX_VAR_CHECK | | |
8855 | DISSECT_IMAGE_USR_NO_ROOT | | |
f4a63ce2 LP |
8856 | DISSECT_IMAGE_REQUIRE_ROOT | |
8857 | DISSECT_IMAGE_ALLOW_USERSPACE_VERITY, | |
252d6267 | 8858 | &mounted_dir, |
a133d2c3 | 8859 | /* ret_dir_fd= */ NULL, |
e330f97a | 8860 | &loop_device); |
252d6267 LP |
8861 | if (r < 0) |
8862 | return r; | |
8863 | ||
8864 | arg_root = strdup(mounted_dir); | |
8865 | if (!arg_root) | |
8866 | return log_oom(); | |
8867 | ||
8868 | if (!arg_node) { | |
8869 | arg_node = strdup(loop_device->node); | |
8870 | if (!arg_node) | |
8871 | return log_oom(); | |
8872 | ||
3d62af7d | 8873 | /* Remember that the device we are about to manipulate is actually the one we |
252d6267 LP |
8874 | * allocated here, and thus to increase its backing file we know what to do */ |
8875 | node_is_our_loop = true; | |
8876 | } | |
8877 | } | |
8878 | ||
607343a1 LP |
8879 | if (!arg_copy_source && arg_root) { |
8880 | /* If no explicit copy source is specified, then use --root=/--image= */ | |
8881 | arg_copy_source = strdup(arg_root); | |
8882 | if (!arg_copy_source) | |
8883 | return log_oom(); | |
8884 | } | |
8885 | ||
e594a3b1 LP |
8886 | context = context_new(arg_seed); |
8887 | if (!context) | |
8888 | return log_oom(); | |
8889 | ||
b8a8000a YW |
8890 | r = context_read_seed(context, arg_root); |
8891 | if (r < 0) | |
8892 | return r; | |
8893 | ||
1e46985a DDM |
8894 | r = context_copy_from(context); |
8895 | if (r < 0) | |
8896 | return r; | |
8897 | ||
a121b331 LP |
8898 | if (arg_make_ddi) { |
8899 | _cleanup_free_ char *d = NULL, *dp = NULL; | |
8900 | assert(!arg_definitions); | |
8901 | ||
8902 | d = strjoin(arg_make_ddi, ".repart.d/"); | |
8903 | if (!d) | |
8904 | return log_oom(); | |
8905 | ||
76d75d8b | 8906 | r = search_and_access(d, F_OK, NULL, CONF_PATHS_STRV("systemd/repart/definitions"), &dp); |
a121b331 | 8907 | if (r < 0) |
9f08d7f7 | 8908 | return log_error_errno(r, "DDI type '%s' is not defined: %m", arg_make_ddi); |
a121b331 LP |
8909 | |
8910 | if (strv_consume(&arg_definitions, TAKE_PTR(dp)) < 0) | |
8911 | return log_oom(); | |
8912 | } else | |
8913 | strv_uniq(arg_definitions); | |
224c853f | 8914 | |
4b047310 | 8915 | r = context_read_definitions(context); |
e594a3b1 LP |
8916 | if (r < 0) |
8917 | return r; | |
8918 | ||
cc751c75 | 8919 | r = find_root(context); |
021b0ff4 DDM |
8920 | if (r == -ENODEV) |
8921 | return 76; /* Special return value which means "Root block device not found, so not doing | |
8922 | * anything". This isn't really an error when called at boot. */ | |
0ae5ffe0 YW |
8923 | if (r < 0) |
8924 | return r; | |
8925 | ||
a26f4a49 | 8926 | if (arg_size != UINT64_MAX) { |
252d6267 | 8927 | r = resize_backing_fd( |
cc751c75 DDM |
8928 | context->node, |
8929 | &context->backing_fd, | |
252d6267 | 8930 | node_is_our_loop ? arg_image : NULL, |
81dde3d8 LP |
8931 | node_is_our_loop ? loop_device : NULL, |
8932 | context->sector_size); | |
a26f4a49 LP |
8933 | if (r < 0) |
8934 | return r; | |
8935 | } | |
8936 | ||
cc751c75 | 8937 | r = context_load_partition_table(context); |
e594a3b1 LP |
8938 | if (r == -EHWPOISON) |
8939 | return 77; /* Special return value which means "Not GPT, so not doing anything". This isn't | |
8940 | * really an error when called at boot. */ | |
8941 | if (r < 0) | |
8942 | return r; | |
cc751c75 | 8943 | context->from_scratch = r > 0; /* Starting from scratch */ |
e594a3b1 LP |
8944 | |
8945 | if (arg_can_factory_reset) { | |
8946 | r = context_can_factory_reset(context); | |
8947 | if (r < 0) | |
8948 | return r; | |
8949 | if (r == 0) | |
8950 | return EXIT_FAILURE; | |
8951 | ||
8952 | return 0; | |
8953 | } | |
8954 | ||
cc751c75 | 8955 | r = context_factory_reset(context); |
e594a3b1 LP |
8956 | if (r < 0) |
8957 | return r; | |
8958 | if (r > 0) { | |
8959 | /* We actually did a factory reset! */ | |
8960 | r = remove_efi_variable_factory_reset(); | |
8961 | if (r < 0) | |
8962 | return r; | |
8963 | ||
8964 | /* Reload the reduced partition table */ | |
8965 | context_unload_partition_table(context); | |
cc751c75 | 8966 | r = context_load_partition_table(context); |
e594a3b1 LP |
8967 | if (r < 0) |
8968 | return r; | |
8969 | } | |
8970 | ||
8bbbdfd7 DDM |
8971 | /* Make sure each partition has a unique UUID and unique label */ |
8972 | r = context_acquire_partition_uuids_and_labels(context); | |
8973 | if (r < 0) | |
8974 | return r; | |
8975 | ||
757bc2e4 | 8976 | /* Open all files to copy blocks from now, since we want to take their size into consideration */ |
5c08da58 LP |
8977 | r = context_open_copy_block_paths( |
8978 | context, | |
7802194a | 8979 | loop_device ? loop_device->devno : /* if --image= is specified, only allow partitions on the loopback device */ |
5c08da58 LP |
8980 | arg_root && !arg_image ? 0 : /* if --root= is specified, don't accept any block device */ |
8981 | (dev_t) -1); /* if neither is specified, make no restrictions */ | |
757bc2e4 LP |
8982 | if (r < 0) |
8983 | return r; | |
8984 | ||
1a0541d4 DDM |
8985 | r = context_fstab(context); |
8986 | if (r < 0) | |
8987 | return r; | |
8988 | ||
8989 | r = context_crypttab(context); | |
8990 | if (r < 0) | |
8991 | return r; | |
8992 | ||
5eef7047 DDM |
8993 | r = context_minimize(context); |
8994 | if (r < 0) | |
8995 | return r; | |
8996 | ||
170c9823 LP |
8997 | if (arg_size_auto) { |
8998 | r = determine_auto_size(context); | |
8999 | if (r < 0) | |
9000 | return r; | |
9001 | ||
9002 | /* Flush out everything again, and let's grow the file first, then start fresh */ | |
9003 | context_unload_partition_table(context); | |
9004 | ||
ac33e147 | 9005 | assert(arg_size != UINT64_MAX); |
252d6267 | 9006 | r = resize_backing_fd( |
cc751c75 DDM |
9007 | context->node, |
9008 | &context->backing_fd, | |
252d6267 | 9009 | node_is_our_loop ? arg_image : NULL, |
81dde3d8 LP |
9010 | node_is_our_loop ? loop_device : NULL, |
9011 | context->sector_size); | |
170c9823 LP |
9012 | if (r < 0) |
9013 | return r; | |
9014 | ||
cc751c75 | 9015 | r = context_load_partition_table(context); |
170c9823 LP |
9016 | if (r < 0) |
9017 | return r; | |
9018 | } | |
9019 | ||
e594a3b1 LP |
9020 | /* First try to fit new partitions in, dropping by priority until it fits */ |
9021 | for (;;) { | |
14a4c4ed LP |
9022 | uint64_t largest_free_area; |
9023 | ||
9024 | if (context_allocate_partitions(context, &largest_free_area)) | |
e594a3b1 LP |
9025 | break; /* Success! */ |
9026 | ||
2cb9c68c AV |
9027 | if (context_unmerge_and_allocate_partitions(context)) |
9028 | break; /* We had to un-suppress a supplement or few, but still success! */ | |
9029 | ||
9030 | if (context_drop_or_foreignize_one_priority(context)) | |
9031 | continue; /* Still no luck. Let's drop a priority and try again. */ | |
9032 | ||
9033 | /* No more priorities left to drop. This configuration just doesn't fit on this disk... */ | |
9034 | r = log_error_errno(SYNTHETIC_ERRNO(ENOSPC), | |
9035 | "Can't fit requested partitions into available free space (%s), refusing.", | |
9036 | FORMAT_BYTES(largest_free_area)); | |
9037 | determine_auto_size(context); | |
9038 | return r; | |
9039 | } | |
9040 | ||
9041 | LIST_FOREACH(partitions, p, context->partitions) { | |
9042 | if (!p->supplement_for) | |
9043 | continue; | |
9044 | ||
9045 | if (PARTITION_SUPPRESSED(p)) { | |
9046 | assert(!p->allocated_to_area); | |
9047 | p->dropped = true; | |
9048 | ||
9049 | log_debug("Partition %s can be merged into %s, suppressing supplement.", | |
9050 | p->definition_path, p->supplement_for->definition_path); | |
9051 | } else if (PARTITION_EXISTS(p)) | |
9052 | log_info("Partition %s already exists on disk, using supplement verbatim.", | |
9053 | p->definition_path); | |
9054 | else | |
9055 | log_info("Couldn't allocate partitions with %s merged into %s, using supplement verbatim.", | |
9056 | p->definition_path, p->supplement_for->definition_path); | |
e594a3b1 LP |
9057 | } |
9058 | ||
9059 | /* Now assign free space according to the weight logic */ | |
9060 | r = context_grow_partitions(context); | |
9061 | if (r < 0) | |
9062 | return r; | |
9063 | ||
0b7f574f | 9064 | /* Now calculate where each new partition gets placed */ |
e594a3b1 LP |
9065 | context_place_partitions(context); |
9066 | ||
cc751c75 | 9067 | (void) context_dump(context, /*late=*/ false); |
a26d463d | 9068 | |
cc751c75 | 9069 | r = context_write_partition_table(context); |
e594a3b1 LP |
9070 | if (r < 0) |
9071 | return r; | |
9072 | ||
4cee8333 DDM |
9073 | r = context_split(context); |
9074 | if (r < 0) | |
9075 | return r; | |
9076 | ||
cc751c75 | 9077 | (void) context_dump(context, /*late=*/ true); |
b5b7879a | 9078 | |
db1d4e6b DDM |
9079 | context->node = mfree(context->node); |
9080 | ||
a2d7c42e DDM |
9081 | LIST_FOREACH(partitions, p, context->partitions) |
9082 | p->split_path = mfree(p->split_path); | |
b5b7879a | 9083 | |
e594a3b1 LP |
9084 | return 0; |
9085 | } | |
9086 | ||
9087 | DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run); |