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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
7e87c7d9 | 2 | |
ca78ad1d | 3 | #include <unistd.h> |
7e87c7d9 | 4 | |
e94830c0 | 5 | #include "bootspec-fundamental.h" |
432ce537 | 6 | #include "bootspec.h" |
7e87c7d9 | 7 | #include "conf-files.h" |
7176f06c | 8 | #include "devnum-util.h" |
5e146a75 | 9 | #include "dirent-util.h" |
0bb2f0f1 | 10 | #include "efi-loader.h" |
5e146a75 | 11 | #include "env-file.h" |
432ce537 | 12 | #include "errno-util.h" |
7e87c7d9 ZJS |
13 | #include "fd-util.h" |
14 | #include "fileio.h" | |
e94830c0 | 15 | #include "find-esp.h" |
cc7a0bfa | 16 | #include "path-util.h" |
5e146a75 | 17 | #include "pe-header.h" |
432ce537 | 18 | #include "pretty-print.h" |
d04f0331 | 19 | #include "recurse-dir.h" |
760877e9 | 20 | #include "sort-util.h" |
432ce537 | 21 | #include "string-table.h" |
7e87c7d9 | 22 | #include "strv.h" |
432ce537 | 23 | #include "terminal-util.h" |
5e146a75 | 24 | #include "unaligned.h" |
7e87c7d9 | 25 | |
432ce537 ZJS |
26 | static const char* const boot_entry_type_table[_BOOT_ENTRY_TYPE_MAX] = { |
27 | [BOOT_ENTRY_CONF] = "Boot Loader Specification Type #1 (.conf)", | |
28 | [BOOT_ENTRY_UNIFIED] = "Boot Loader Specification Type #2 (.efi)", | |
29 | [BOOT_ENTRY_LOADER] = "Reported by Boot Loader", | |
30 | [BOOT_ENTRY_LOADER_AUTO] = "Automatic", | |
31 | }; | |
32 | ||
33 | DEFINE_STRING_TABLE_LOOKUP_TO_STRING(boot_entry_type, BootEntryType); | |
34 | ||
0de2e1fd | 35 | static void boot_entry_free(BootEntry *entry) { |
4fe2ba0e | 36 | assert(entry); |
7e87c7d9 | 37 | |
12580bc3 | 38 | free(entry->id); |
15b82eec | 39 | free(entry->id_old); |
2d3bfb69 | 40 | free(entry->path); |
43b736a8 | 41 | free(entry->root); |
7e87c7d9 | 42 | free(entry->title); |
64f05708 | 43 | free(entry->show_title); |
20ec8f53 | 44 | free(entry->sort_key); |
7e87c7d9 ZJS |
45 | free(entry->version); |
46 | free(entry->machine_id); | |
47 | free(entry->architecture); | |
48 | strv_free(entry->options); | |
49 | free(entry->kernel); | |
50 | free(entry->efi); | |
51 | strv_free(entry->initrd); | |
52 | free(entry->device_tree); | |
fdc5c042 | 53 | strv_free(entry->device_tree_overlay); |
7e87c7d9 ZJS |
54 | } |
55 | ||
bb9133bb LP |
56 | static int mangle_path(const char *field, const char *p, char **ret) { |
57 | _cleanup_free_ char *c = NULL; | |
58 | ||
59 | assert(field); | |
60 | assert(p); | |
61 | assert(ret); | |
62 | ||
63 | /* Spec leaves open if prefixed with "/" or not, let's normalize that */ | |
64 | if (path_is_absolute(p)) | |
65 | c = strdup(p); | |
66 | else | |
67 | c = strjoin("/", p); | |
68 | if (!c) | |
69 | return -ENOMEM; | |
70 | ||
71 | /* We only reference files, never directories */ | |
72 | if (endswith(c, "/")) { | |
73 | log_warning("Path in field '%s' has trailing slash, ignoring: %s", field, c); | |
74 | *ret = NULL; | |
75 | return 0; | |
76 | } | |
77 | ||
78 | /* Remove duplicate "/" */ | |
79 | path_simplify(c); | |
80 | ||
81 | /* No ".." or "." or so */ | |
82 | if (!path_is_normalized(c)) { | |
83 | log_warning("Path in field '%s' is not normalized, ignoring: %s", field, c); | |
84 | *ret = NULL; | |
85 | return 0; | |
86 | } | |
87 | ||
88 | *ret = TAKE_PTR(c); | |
89 | return 1; | |
90 | } | |
91 | ||
92 | static int parse_path_one(const char *field, char **s, const char *p) { | |
93 | _cleanup_free_ char *c = NULL; | |
94 | int r; | |
95 | ||
96 | assert(field); | |
97 | assert(s); | |
98 | assert(p); | |
99 | ||
100 | r = mangle_path(field, p, &c); | |
101 | if (r <= 0) | |
102 | return r; | |
103 | ||
104 | free_and_replace(*s, c); | |
105 | return 0; | |
106 | } | |
107 | ||
108 | static int parse_path_strv(const char *field, char ***s, const char *p) { | |
109 | char *c; | |
110 | int r; | |
111 | ||
112 | assert(field); | |
113 | assert(s); | |
114 | assert(p); | |
115 | ||
116 | r = mangle_path(field, p, &c); | |
117 | if (r <= 0) | |
118 | return r; | |
119 | ||
120 | return strv_consume(s, c); | |
121 | } | |
122 | ||
123 | static int parse_path_many(const char *field, char ***s, const char *p) { | |
124 | _cleanup_strv_free_ char **l = NULL, **f = NULL; | |
125 | int r; | |
126 | ||
127 | l = strv_split(p, NULL); | |
128 | if (!l) | |
129 | return -ENOMEM; | |
130 | ||
131 | STRV_FOREACH(i, l) { | |
132 | char *c; | |
133 | ||
134 | r = mangle_path(field, *i, &c); | |
135 | if (r < 0) | |
136 | return r; | |
137 | if (r == 0) | |
138 | continue; | |
139 | ||
140 | r = strv_consume(&f, c); | |
141 | if (r < 0) | |
142 | return r; | |
143 | } | |
144 | ||
145 | return strv_extend_strv(s, f, /* filter_duplicates= */ false); | |
146 | } | |
147 | ||
85e17916 | 148 | static int boot_entry_load_type1( |
d04f0331 | 149 | FILE *f, |
43b736a8 | 150 | const char *root, |
d04f0331 LP |
151 | const char *dir, |
152 | const char *id, | |
43b736a8 LP |
153 | BootEntry *entry) { |
154 | ||
93f14ce2 LP |
155 | _cleanup_(boot_entry_free) BootEntry tmp = { |
156 | .type = BOOT_ENTRY_CONF, | |
157 | }; | |
158 | ||
7e87c7d9 | 159 | unsigned line = 1; |
736783d4 | 160 | char *c; |
7e87c7d9 ZJS |
161 | int r; |
162 | ||
d04f0331 | 163 | assert(f); |
43b736a8 | 164 | assert(root); |
d04f0331 LP |
165 | assert(dir); |
166 | assert(id); | |
4fe2ba0e LP |
167 | assert(entry); |
168 | ||
d04f0331 | 169 | /* Loads a Type #1 boot menu entry from the specified FILE* object */ |
7e87c7d9 | 170 | |
d04f0331 LP |
171 | if (!efi_loader_entry_name_valid(id)) |
172 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid loader entry name: %s", id); | |
173 | ||
174 | c = endswith_no_case(id, ".conf"); | |
736783d4 | 175 | if (!c) |
d04f0331 | 176 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid loader entry file suffix: %s", id); |
7e87c7d9 | 177 | |
d04f0331 LP |
178 | tmp.id = strdup(id); |
179 | if (!tmp.id) | |
180 | return log_oom(); | |
eed7210a | 181 | |
d04f0331 | 182 | tmp.id_old = strndup(id, c - id); /* Without .conf suffix */ |
736783d4 LP |
183 | if (!tmp.id_old) |
184 | return log_oom(); | |
185 | ||
d04f0331 | 186 | tmp.path = path_join(dir, id); |
2d3bfb69 ZJS |
187 | if (!tmp.path) |
188 | return log_oom(); | |
189 | ||
43b736a8 LP |
190 | tmp.root = strdup(root); |
191 | if (!tmp.root) | |
192 | return log_oom(); | |
193 | ||
7e87c7d9 | 194 | for (;;) { |
f99fdc3e YW |
195 | _cleanup_free_ char *buf = NULL, *field = NULL; |
196 | const char *p; | |
7e87c7d9 ZJS |
197 | |
198 | r = read_line(f, LONG_LINE_MAX, &buf); | |
199 | if (r == 0) | |
200 | break; | |
201 | if (r == -ENOBUFS) | |
d04f0331 | 202 | return log_error_errno(r, "%s:%u: Line too long", tmp.path, line); |
7e87c7d9 | 203 | if (r < 0) |
d04f0331 | 204 | return log_error_errno(r, "%s:%u: Error while reading: %m", tmp.path, line); |
7e87c7d9 ZJS |
205 | |
206 | line++; | |
207 | ||
da8f277c LP |
208 | p = strstrip(buf); |
209 | if (IN_SET(p[0], '#', '\0')) | |
7e87c7d9 ZJS |
210 | continue; |
211 | ||
da8f277c | 212 | r = extract_first_word(&p, &field, NULL, 0); |
f99fdc3e | 213 | if (r < 0) { |
d04f0331 | 214 | log_error_errno(r, "Failed to parse config file %s line %u: %m", tmp.path, line); |
f99fdc3e YW |
215 | continue; |
216 | } | |
217 | if (r == 0) { | |
d04f0331 | 218 | log_warning("%s:%u: Bad syntax", tmp.path, line); |
7e87c7d9 ZJS |
219 | continue; |
220 | } | |
7e87c7d9 | 221 | |
b6bd2562 ZJS |
222 | if (isempty(p)) { |
223 | /* Some fields can reasonably have an empty value. In other cases warn. */ | |
224 | if (!STR_IN_SET(field, "options", "devicetree-overlay")) | |
225 | log_warning("%s:%u: Field %s without value", tmp.path, line, field); | |
226 | continue; | |
227 | } | |
228 | ||
f99fdc3e | 229 | if (streq(field, "title")) |
7e87c7d9 | 230 | r = free_and_strdup(&tmp.title, p); |
20ec8f53 LP |
231 | else if (streq(field, "sort-key")) |
232 | r = free_and_strdup(&tmp.sort_key, p); | |
f99fdc3e | 233 | else if (streq(field, "version")) |
7e87c7d9 | 234 | r = free_and_strdup(&tmp.version, p); |
f99fdc3e | 235 | else if (streq(field, "machine-id")) |
7e87c7d9 | 236 | r = free_and_strdup(&tmp.machine_id, p); |
f99fdc3e | 237 | else if (streq(field, "architecture")) |
7e87c7d9 | 238 | r = free_and_strdup(&tmp.architecture, p); |
f99fdc3e | 239 | else if (streq(field, "options")) |
7e87c7d9 | 240 | r = strv_extend(&tmp.options, p); |
f99fdc3e | 241 | else if (streq(field, "linux")) |
bb9133bb | 242 | r = parse_path_one(field, &tmp.kernel, p); |
f99fdc3e | 243 | else if (streq(field, "efi")) |
bb9133bb | 244 | r = parse_path_one(field, &tmp.efi, p); |
f99fdc3e | 245 | else if (streq(field, "initrd")) |
bb9133bb | 246 | r = parse_path_strv(field, &tmp.initrd, p); |
f99fdc3e | 247 | else if (streq(field, "devicetree")) |
bb9133bb LP |
248 | r = parse_path_one(field, &tmp.device_tree, p); |
249 | else if (streq(field, "devicetree-overlay")) | |
250 | r = parse_path_many(field, &tmp.device_tree_overlay, p); | |
251 | else { | |
d04f0331 | 252 | log_notice("%s:%u: Unknown line \"%s\", ignoring.", tmp.path, line, field); |
7e87c7d9 ZJS |
253 | continue; |
254 | } | |
255 | if (r < 0) | |
d04f0331 | 256 | return log_error_errno(r, "%s:%u: Error while reading: %m", tmp.path, line); |
7e87c7d9 ZJS |
257 | } |
258 | ||
259 | *entry = tmp; | |
260 | tmp = (BootEntry) {}; | |
261 | return 0; | |
262 | } | |
263 | ||
a847b539 ZJS |
264 | int boot_config_load_type1( |
265 | BootConfig *config, | |
266 | FILE *f, | |
267 | const char *root, | |
268 | const char *dir, | |
269 | const char *id) { | |
270 | int r; | |
271 | ||
272 | assert(config); | |
273 | assert(f); | |
274 | assert(root); | |
275 | assert(dir); | |
276 | assert(id); | |
277 | ||
278 | if (!GREEDY_REALLOC0(config->entries, config->n_entries + 1)) | |
279 | return log_oom(); | |
280 | ||
281 | r = boot_entry_load_type1(f, root, dir, id, config->entries + config->n_entries); | |
282 | if (r < 0) | |
283 | return r; | |
284 | ||
285 | config->n_entries++; | |
286 | return 0; | |
287 | } | |
288 | ||
7e87c7d9 | 289 | void boot_config_free(BootConfig *config) { |
4fe2ba0e LP |
290 | assert(config); |
291 | ||
7e87c7d9 ZJS |
292 | free(config->default_pattern); |
293 | free(config->timeout); | |
294 | free(config->editor); | |
c1d4e298 JJ |
295 | free(config->auto_entries); |
296 | free(config->auto_firmware); | |
72263375 | 297 | free(config->console_mode); |
fe5a698f | 298 | free(config->random_seed_mode); |
d403d8f0 | 299 | free(config->beep); |
7e87c7d9 ZJS |
300 | |
301 | free(config->entry_oneshot); | |
302 | free(config->entry_default); | |
a78e472d | 303 | free(config->entry_selected); |
7e87c7d9 | 304 | |
9817b7db | 305 | for (size_t i = 0; i < config->n_entries; i++) |
7e87c7d9 ZJS |
306 | boot_entry_free(config->entries + i); |
307 | free(config->entries); | |
d486a0ea LP |
308 | |
309 | set_free(config->inodes_seen); | |
7e87c7d9 ZJS |
310 | } |
311 | ||
5ba1550f | 312 | int boot_loader_read_conf(BootConfig *config, FILE *file, const char *path) { |
7e87c7d9 ZJS |
313 | unsigned line = 1; |
314 | int r; | |
315 | ||
4fe2ba0e | 316 | assert(config); |
5ba1550f ZJS |
317 | assert(file); |
318 | assert(path); | |
7e87c7d9 ZJS |
319 | |
320 | for (;;) { | |
f99fdc3e YW |
321 | _cleanup_free_ char *buf = NULL, *field = NULL; |
322 | const char *p; | |
7e87c7d9 | 323 | |
5ba1550f | 324 | r = read_line(file, LONG_LINE_MAX, &buf); |
7e87c7d9 ZJS |
325 | if (r == 0) |
326 | break; | |
327 | if (r == -ENOBUFS) | |
328 | return log_error_errno(r, "%s:%u: Line too long", path, line); | |
329 | if (r < 0) | |
330 | return log_error_errno(r, "%s:%u: Error while reading: %m", path, line); | |
331 | ||
332 | line++; | |
333 | ||
da8f277c LP |
334 | p = strstrip(buf); |
335 | if (IN_SET(p[0], '#', '\0')) | |
7e87c7d9 ZJS |
336 | continue; |
337 | ||
da8f277c | 338 | r = extract_first_word(&p, &field, NULL, 0); |
f99fdc3e YW |
339 | if (r < 0) { |
340 | log_error_errno(r, "Failed to parse config file %s line %u: %m", path, line); | |
341 | continue; | |
342 | } | |
343 | if (r == 0) { | |
7e87c7d9 ZJS |
344 | log_warning("%s:%u: Bad syntax", path, line); |
345 | continue; | |
346 | } | |
7e87c7d9 | 347 | |
f99fdc3e | 348 | if (streq(field, "default")) |
7e87c7d9 | 349 | r = free_and_strdup(&config->default_pattern, p); |
f99fdc3e | 350 | else if (streq(field, "timeout")) |
7e87c7d9 | 351 | r = free_and_strdup(&config->timeout, p); |
f99fdc3e | 352 | else if (streq(field, "editor")) |
7e87c7d9 | 353 | r = free_and_strdup(&config->editor, p); |
790f84eb | 354 | else if (streq(field, "auto-entries")) |
c1d4e298 | 355 | r = free_and_strdup(&config->auto_entries, p); |
790f84eb | 356 | else if (streq(field, "auto-firmware")) |
c1d4e298 | 357 | r = free_and_strdup(&config->auto_firmware, p); |
790f84eb | 358 | else if (streq(field, "console-mode")) |
d37b0737 | 359 | r = free_and_strdup(&config->console_mode, p); |
fe5a698f YW |
360 | else if (streq(field, "random-seed-mode")) |
361 | r = free_and_strdup(&config->random_seed_mode, p); | |
d403d8f0 LP |
362 | else if (streq(field, "beep")) |
363 | r = free_and_strdup(&config->beep, p); | |
7e87c7d9 | 364 | else { |
feb41f1f | 365 | log_notice("%s:%u: Unknown line \"%s\", ignoring.", path, line, field); |
7e87c7d9 ZJS |
366 | continue; |
367 | } | |
368 | if (r < 0) | |
369 | return log_error_errno(r, "%s:%u: Error while reading: %m", path, line); | |
370 | } | |
371 | ||
f91ed3dc | 372 | return 1; |
7e87c7d9 ZJS |
373 | } |
374 | ||
5ba1550f ZJS |
375 | static int boot_loader_read_conf_path(BootConfig *config, const char *path) { |
376 | _cleanup_fclose_ FILE *f = NULL; | |
377 | ||
378 | assert(config); | |
379 | assert(path); | |
380 | ||
381 | f = fopen(path, "re"); | |
382 | if (!f) { | |
383 | if (errno == ENOENT) | |
384 | return 0; | |
385 | ||
386 | return log_error_errno(errno, "Failed to open \"%s\": %m", path); | |
387 | } | |
388 | ||
389 | return boot_loader_read_conf(config, f, path); | |
390 | } | |
391 | ||
93bab288 | 392 | static int boot_entry_compare(const BootEntry *a, const BootEntry *b) { |
20ec8f53 LP |
393 | int r; |
394 | ||
395 | assert(a); | |
396 | assert(b); | |
397 | ||
398 | r = CMP(!a->sort_key, !b->sort_key); | |
399 | if (r != 0) | |
400 | return r; | |
62a4b584 | 401 | |
20ec8f53 LP |
402 | if (a->sort_key && b->sort_key) { |
403 | r = strcmp(a->sort_key, b->sort_key); | |
404 | if (r != 0) | |
405 | return r; | |
406 | ||
407 | r = strcmp_ptr(a->machine_id, b->machine_id); | |
408 | if (r != 0) | |
409 | return r; | |
410 | ||
411 | r = -strverscmp_improved(a->version, b->version); | |
412 | if (r != 0) | |
413 | return r; | |
414 | } | |
415 | ||
62a4b584 | 416 | return -strverscmp_improved(a->id, b->id); |
7e87c7d9 ZJS |
417 | } |
418 | ||
d486a0ea LP |
419 | static void inode_hash_func(const struct stat *q, struct siphash *state) { |
420 | siphash24_compress(&q->st_dev, sizeof(q->st_dev), state); | |
421 | siphash24_compress(&q->st_ino, sizeof(q->st_ino), state); | |
422 | } | |
423 | ||
424 | static int inode_compare_func(const struct stat *a, const struct stat *b) { | |
425 | int r; | |
426 | ||
427 | r = CMP(a->st_dev, b->st_dev); | |
428 | if (r != 0) | |
429 | return r; | |
430 | ||
431 | return CMP(a->st_ino, b->st_ino); | |
432 | } | |
433 | ||
434 | DEFINE_HASH_OPS_WITH_KEY_DESTRUCTOR(inode_hash_ops, struct stat, inode_hash_func, inode_compare_func, free); | |
435 | ||
436 | static int config_check_inode_relevant_and_unseen(BootConfig *config, int fd, const char *fname) { | |
437 | _cleanup_free_ char *d = NULL; | |
438 | struct stat st; | |
439 | ||
440 | assert(config); | |
441 | assert(fd >= 0); | |
442 | assert(fname); | |
443 | ||
444 | /* So, here's the thing: because of the mess around /efi/ vs. /boot/ vs. /boot/efi/ it might be that | |
445 | * people have these dirs, or subdirs of them symlinked or bind mounted, and we might end up | |
446 | * iterating though some dirs multiple times. Let's thus rather be safe than sorry, and track the | |
447 | * inodes we already processed: let's ignore inodes we have seen already. This should be robust | |
448 | * against any form of symlinking or bind mounting, and effectively suppress any such duplicates. */ | |
449 | ||
450 | if (fstat(fd, &st) < 0) | |
451 | return log_error_errno(errno, "Failed to stat('%s'): %m", fname); | |
452 | if (!S_ISREG(st.st_mode)) { | |
453 | log_debug("File '%s' is not a reguar file, ignoring.", fname); | |
454 | return false; | |
455 | } | |
456 | ||
457 | if (set_contains(config->inodes_seen, &st)) { | |
458 | log_debug("Inode '%s' already seen before, ignoring.", fname); | |
459 | return false; | |
460 | } | |
461 | d = memdup(&st, sizeof(st)); | |
462 | if (!d) | |
463 | return log_oom(); | |
464 | if (set_ensure_put(&config->inodes_seen, &inode_hash_ops, d) < 0) | |
465 | return log_oom(); | |
466 | ||
467 | TAKE_PTR(d); | |
468 | return true; | |
469 | } | |
470 | ||
85e17916 | 471 | static int boot_entries_find_type1( |
85f4ae2f | 472 | BootConfig *config, |
43b736a8 | 473 | const char *root, |
85f4ae2f | 474 | const char *dir) { |
43b736a8 | 475 | |
d04f0331 LP |
476 | _cleanup_free_ DirectoryEntries *dentries = NULL; |
477 | _cleanup_close_ int dir_fd = -1; | |
7e87c7d9 | 478 | int r; |
7e87c7d9 | 479 | |
85f4ae2f | 480 | assert(config); |
43b736a8 | 481 | assert(root); |
4fe2ba0e | 482 | assert(dir); |
4fe2ba0e | 483 | |
d04f0331 LP |
484 | dir_fd = open(dir, O_DIRECTORY|O_CLOEXEC); |
485 | if (dir_fd < 0) { | |
486 | if (errno == ENOENT) | |
487 | return 0; | |
488 | ||
489 | return log_error_errno(errno, "Failed to open '%s': %m", dir); | |
490 | } | |
491 | ||
492 | r = readdir_all(dir_fd, RECURSE_DIR_IGNORE_DOT, &dentries); | |
7e87c7d9 | 493 | if (r < 0) |
d04f0331 LP |
494 | return log_error_errno(r, "Failed to read directory '%s': %m", dir); |
495 | ||
496 | for (size_t i = 0; i < dentries->n_entries; i++) { | |
497 | const struct dirent *de = dentries->entries[i]; | |
498 | _cleanup_fclose_ FILE *f = NULL; | |
499 | ||
500 | if (!dirent_is_file(de)) | |
501 | continue; | |
502 | ||
503 | if (!endswith_no_case(de->d_name, ".conf")) | |
504 | continue; | |
7e87c7d9 | 505 | |
d04f0331 LP |
506 | r = xfopenat(dir_fd, de->d_name, "re", 0, &f); |
507 | if (r < 0) { | |
508 | log_warning_errno(r, "Failed to open %s/%s, ignoring: %m", dir, de->d_name); | |
509 | continue; | |
510 | } | |
511 | ||
d486a0ea LP |
512 | r = config_check_inode_relevant_and_unseen(config, fileno(f), de->d_name); |
513 | if (r < 0) | |
514 | return r; | |
515 | if (r == 0) /* inode already seen or otherwise not relevant */ | |
d04f0331 | 516 | continue; |
d486a0ea | 517 | |
a847b539 ZJS |
518 | r = boot_config_load_type1(config, f, root, dir, de->d_name); |
519 | if (r == -ENOMEM) | |
520 | return r; | |
7e87c7d9 ZJS |
521 | } |
522 | ||
7e87c7d9 ZJS |
523 | return 0; |
524 | } | |
525 | ||
5e146a75 LP |
526 | static int boot_entry_load_unified( |
527 | const char *root, | |
528 | const char *path, | |
529 | const char *osrelease, | |
530 | const char *cmdline, | |
531 | BootEntry *ret) { | |
532 | ||
c2caeb5d LP |
533 | _cleanup_free_ char *os_pretty_name = NULL, *os_image_id = NULL, *os_name = NULL, *os_id = NULL, |
534 | *os_image_version = NULL, *os_version = NULL, *os_version_id = NULL, *os_build_id = NULL; | |
93f14ce2 LP |
535 | _cleanup_(boot_entry_free) BootEntry tmp = { |
536 | .type = BOOT_ENTRY_UNIFIED, | |
537 | }; | |
20ec8f53 | 538 | const char *k, *good_name, *good_version, *good_sort_key; |
5e146a75 | 539 | _cleanup_fclose_ FILE *f = NULL; |
5e146a75 LP |
540 | int r; |
541 | ||
542 | assert(root); | |
543 | assert(path); | |
544 | assert(osrelease); | |
545 | ||
546 | k = path_startswith(path, root); | |
547 | if (!k) | |
548 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Path is not below root: %s", path); | |
549 | ||
673a1e6f | 550 | f = fmemopen_unlocked((void*) osrelease, strlen(osrelease), "r"); |
5e146a75 LP |
551 | if (!f) |
552 | return log_error_errno(errno, "Failed to open os-release buffer: %m"); | |
553 | ||
15b82eec SM |
554 | r = parse_env_file(f, "os-release", |
555 | "PRETTY_NAME", &os_pretty_name, | |
c2caeb5d LP |
556 | "IMAGE_ID", &os_image_id, |
557 | "NAME", &os_name, | |
15b82eec | 558 | "ID", &os_id, |
c2caeb5d LP |
559 | "IMAGE_VERSION", &os_image_version, |
560 | "VERSION", &os_version, | |
561 | "VERSION_ID", &os_version_id, | |
562 | "BUILD_ID", &os_build_id); | |
5e146a75 LP |
563 | if (r < 0) |
564 | return log_error_errno(r, "Failed to parse os-release data from unified kernel image %s: %m", path); | |
565 | ||
20ec8f53 | 566 | if (!bootspec_pick_name_version_sort_key( |
c2caeb5d LP |
567 | os_pretty_name, |
568 | os_image_id, | |
569 | os_name, | |
570 | os_id, | |
571 | os_image_version, | |
572 | os_version, | |
573 | os_version_id, | |
574 | os_build_id, | |
575 | &good_name, | |
20ec8f53 LP |
576 | &good_version, |
577 | &good_sort_key)) | |
5e146a75 LP |
578 | return log_error_errno(SYNTHETIC_ERRNO(EBADMSG), "Missing fields in os-release data from unified kernel image %s, refusing.", path); |
579 | ||
c2caeb5d LP |
580 | r = path_extract_filename(path, &tmp.id); |
581 | if (r < 0) | |
582 | return log_error_errno(r, "Failed to extract file name from '%s': %m", path); | |
5e146a75 | 583 | |
eed7210a | 584 | if (!efi_loader_entry_name_valid(tmp.id)) |
dfc22cb4 | 585 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid loader entry name: %s", tmp.id); |
eed7210a | 586 | |
c2caeb5d LP |
587 | if (os_id && os_version_id) { |
588 | tmp.id_old = strjoin(os_id, "-", os_version_id); | |
589 | if (!tmp.id_old) | |
590 | return log_oom(); | |
591 | } | |
592 | ||
5e146a75 LP |
593 | tmp.path = strdup(path); |
594 | if (!tmp.path) | |
595 | return log_oom(); | |
596 | ||
597 | tmp.root = strdup(root); | |
598 | if (!tmp.root) | |
599 | return log_oom(); | |
600 | ||
601 | tmp.kernel = strdup(skip_leading_chars(k, "/")); | |
602 | if (!tmp.kernel) | |
603 | return log_oom(); | |
604 | ||
605 | tmp.options = strv_new(skip_leading_chars(cmdline, WHITESPACE)); | |
606 | if (!tmp.options) | |
607 | return log_oom(); | |
608 | ||
609 | delete_trailing_chars(tmp.options[0], WHITESPACE); | |
610 | ||
c2caeb5d LP |
611 | tmp.title = strdup(good_name); |
612 | if (!tmp.title) | |
613 | return log_oom(); | |
614 | ||
20ec8f53 LP |
615 | tmp.sort_key = strdup(good_sort_key); |
616 | if (!tmp.sort_key) | |
617 | return log_oom(); | |
618 | ||
87c77795 VW |
619 | if (good_version) { |
620 | tmp.version = strdup(good_version); | |
621 | if (!tmp.version) | |
622 | return log_oom(); | |
623 | } | |
5e146a75 LP |
624 | |
625 | *ret = tmp; | |
626 | tmp = (BootEntry) {}; | |
627 | return 0; | |
628 | } | |
629 | ||
630 | /* Maximum PE section we are willing to load (Note that sections we are not interested in may be larger, but | |
631 | * the ones we do care about and we are willing to load into memory have this size limit.) */ | |
632 | #define PE_SECTION_SIZE_MAX (4U*1024U*1024U) | |
633 | ||
634 | static int find_sections( | |
635 | int fd, | |
35148e8f | 636 | const char *path, |
5e146a75 LP |
637 | char **ret_osrelease, |
638 | char **ret_cmdline) { | |
639 | ||
640 | _cleanup_free_ struct PeSectionHeader *sections = NULL; | |
641 | _cleanup_free_ char *osrelease = NULL, *cmdline = NULL; | |
5e146a75 LP |
642 | ssize_t n; |
643 | ||
9817b7db | 644 | struct DosFileHeader dos; |
5e146a75 LP |
645 | n = pread(fd, &dos, sizeof(dos), 0); |
646 | if (n < 0) | |
35148e8f | 647 | return log_warning_errno(errno, "%s: Failed to read DOS header, ignoring: %m", path); |
5e146a75 | 648 | if (n != sizeof(dos)) |
35148e8f | 649 | return log_warning_errno(SYNTHETIC_ERRNO(EIO), "%s: Short read while reading DOS header, ignoring.", path); |
5e146a75 LP |
650 | |
651 | if (dos.Magic[0] != 'M' || dos.Magic[1] != 'Z') | |
35148e8f | 652 | return log_warning_errno(SYNTHETIC_ERRNO(EBADMSG), "%s: DOS executable magic missing, ignoring.", path); |
5e146a75 | 653 | |
9817b7db ZJS |
654 | uint64_t start = unaligned_read_le32(&dos.ExeHeader); |
655 | ||
656 | struct PeHeader pe; | |
5e146a75 LP |
657 | n = pread(fd, &pe, sizeof(pe), start); |
658 | if (n < 0) | |
35148e8f | 659 | return log_warning_errno(errno, "%s: Failed to read PE header, ignoring: %m", path); |
5e146a75 | 660 | if (n != sizeof(pe)) |
35148e8f | 661 | return log_warning_errno(SYNTHETIC_ERRNO(EIO), "%s: Short read while reading PE header, ignoring.", path); |
5e146a75 LP |
662 | |
663 | if (pe.Magic[0] != 'P' || pe.Magic[1] != 'E' || pe.Magic[2] != 0 || pe.Magic[3] != 0) | |
35148e8f | 664 | return log_warning_errno(SYNTHETIC_ERRNO(EBADMSG), "%s: PE executable magic missing, ignoring.", path); |
5e146a75 | 665 | |
9817b7db | 666 | size_t n_sections = unaligned_read_le16(&pe.FileHeader.NumberOfSections); |
5e146a75 | 667 | if (n_sections > 96) |
35148e8f | 668 | return log_warning_errno(SYNTHETIC_ERRNO(EBADMSG), "%s: PE header has too many sections, ignoring.", path); |
5e146a75 LP |
669 | |
670 | sections = new(struct PeSectionHeader, n_sections); | |
671 | if (!sections) | |
672 | return log_oom(); | |
673 | ||
674 | n = pread(fd, sections, | |
675 | n_sections * sizeof(struct PeSectionHeader), | |
676 | start + sizeof(pe) + unaligned_read_le16(&pe.FileHeader.SizeOfOptionalHeader)); | |
677 | if (n < 0) | |
35148e8f | 678 | return log_warning_errno(errno, "%s: Failed to read section data, ignoring: %m", path); |
5e146a75 | 679 | if ((size_t) n != n_sections * sizeof(struct PeSectionHeader)) |
35148e8f | 680 | return log_warning_errno(SYNTHETIC_ERRNO(EIO), "%s: Short read while reading sections, ignoring.", path); |
5e146a75 | 681 | |
9817b7db | 682 | for (size_t i = 0; i < n_sections; i++) { |
5e146a75 LP |
683 | _cleanup_free_ char *k = NULL; |
684 | uint32_t offset, size; | |
685 | char **b; | |
686 | ||
687 | if (strneq((char*) sections[i].Name, ".osrel", sizeof(sections[i].Name))) | |
688 | b = &osrelease; | |
689 | else if (strneq((char*) sections[i].Name, ".cmdline", sizeof(sections[i].Name))) | |
690 | b = &cmdline; | |
691 | else | |
692 | continue; | |
693 | ||
694 | if (*b) | |
35148e8f | 695 | return log_warning_errno(SYNTHETIC_ERRNO(EBADMSG), "%s: Duplicate section %s, ignoring.", path, sections[i].Name); |
5e146a75 LP |
696 | |
697 | offset = unaligned_read_le32(§ions[i].PointerToRawData); | |
698 | size = unaligned_read_le32(§ions[i].VirtualSize); | |
699 | ||
700 | if (size > PE_SECTION_SIZE_MAX) | |
35148e8f | 701 | return log_warning_errno(SYNTHETIC_ERRNO(EBADMSG), "%s: Section %s too large, ignoring.", path, sections[i].Name); |
5e146a75 LP |
702 | |
703 | k = new(char, size+1); | |
704 | if (!k) | |
705 | return log_oom(); | |
706 | ||
707 | n = pread(fd, k, size, offset); | |
708 | if (n < 0) | |
35148e8f | 709 | return log_warning_errno(errno, "%s: Failed to read section payload, ignoring: %m", path); |
a75fcef8 | 710 | if ((size_t) n != size) |
35148e8f | 711 | return log_warning_errno(SYNTHETIC_ERRNO(EIO), "%s: Short read while reading section payload, ignoring:", path); |
5e146a75 LP |
712 | |
713 | /* Allow one trailing NUL byte, but nothing more. */ | |
714 | if (size > 0 && memchr(k, 0, size - 1)) | |
35148e8f | 715 | return log_warning_errno(SYNTHETIC_ERRNO(EBADMSG), "%s: Section contains embedded NUL byte, ignoring.", path); |
5e146a75 LP |
716 | |
717 | k[size] = 0; | |
718 | *b = TAKE_PTR(k); | |
719 | } | |
720 | ||
721 | if (!osrelease) | |
35148e8f | 722 | return log_warning_errno(SYNTHETIC_ERRNO(EBADMSG), "%s: Image lacks .osrel section, ignoring.", path); |
5e146a75 LP |
723 | |
724 | if (ret_osrelease) | |
725 | *ret_osrelease = TAKE_PTR(osrelease); | |
726 | if (ret_cmdline) | |
727 | *ret_cmdline = TAKE_PTR(cmdline); | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
732 | static int boot_entries_find_unified( | |
85f4ae2f | 733 | BootConfig *config, |
5e146a75 | 734 | const char *root, |
85f4ae2f | 735 | const char *dir) { |
5e146a75 LP |
736 | |
737 | _cleanup_(closedirp) DIR *d = NULL; | |
5e146a75 LP |
738 | int r; |
739 | ||
85f4ae2f | 740 | assert(config); |
5e146a75 | 741 | assert(dir); |
5e146a75 LP |
742 | |
743 | d = opendir(dir); | |
744 | if (!d) { | |
745 | if (errno == ENOENT) | |
746 | return 0; | |
747 | ||
748 | return log_error_errno(errno, "Failed to open %s: %m", dir); | |
749 | } | |
750 | ||
751 | FOREACH_DIRENT(de, d, return log_error_errno(errno, "Failed to read %s: %m", dir)) { | |
752 | _cleanup_free_ char *j = NULL, *osrelease = NULL, *cmdline = NULL; | |
753 | _cleanup_close_ int fd = -1; | |
754 | ||
755 | if (!dirent_is_file(de)) | |
756 | continue; | |
757 | ||
758 | if (!endswith_no_case(de->d_name, ".efi")) | |
759 | continue; | |
760 | ||
85f4ae2f | 761 | if (!GREEDY_REALLOC0(config->entries, config->n_entries + 1)) |
5e146a75 LP |
762 | return log_oom(); |
763 | ||
764 | fd = openat(dirfd(d), de->d_name, O_RDONLY|O_CLOEXEC|O_NONBLOCK); | |
765 | if (fd < 0) { | |
766 | log_warning_errno(errno, "Failed to open %s/%s, ignoring: %m", dir, de->d_name); | |
767 | continue; | |
768 | } | |
769 | ||
d486a0ea LP |
770 | r = config_check_inode_relevant_and_unseen(config, fd, de->d_name); |
771 | if (r < 0) | |
772 | return r; | |
773 | if (r == 0) /* inode already seen or otherwise not relevant */ | |
5e146a75 | 774 | continue; |
5e146a75 | 775 | |
5e146a75 LP |
776 | j = path_join(dir, de->d_name); |
777 | if (!j) | |
778 | return log_oom(); | |
779 | ||
35148e8f JJ |
780 | if (find_sections(fd, j, &osrelease, &cmdline) < 0) |
781 | continue; | |
782 | ||
85f4ae2f | 783 | r = boot_entry_load_unified(root, j, osrelease, cmdline, config->entries + config->n_entries); |
5e146a75 LP |
784 | if (r < 0) |
785 | continue; | |
786 | ||
85f4ae2f | 787 | config->n_entries++; |
5e146a75 LP |
788 | } |
789 | ||
5e146a75 LP |
790 | return 0; |
791 | } | |
792 | ||
bb682057 | 793 | static bool find_nonunique(const BootEntry *entries, size_t n_entries, bool arr[]) { |
64f05708 ZJS |
794 | bool non_unique = false; |
795 | ||
4fe2ba0e LP |
796 | assert(entries || n_entries == 0); |
797 | assert(arr || n_entries == 0); | |
798 | ||
d5ac1d4e | 799 | for (size_t i = 0; i < n_entries; i++) |
64f05708 ZJS |
800 | arr[i] = false; |
801 | ||
d5ac1d4e LP |
802 | for (size_t i = 0; i < n_entries; i++) |
803 | for (size_t j = 0; j < n_entries; j++) | |
64f05708 ZJS |
804 | if (i != j && streq(boot_entry_title(entries + i), |
805 | boot_entry_title(entries + j))) | |
806 | non_unique = arr[i] = arr[j] = true; | |
807 | ||
808 | return non_unique; | |
809 | } | |
810 | ||
811 | static int boot_entries_uniquify(BootEntry *entries, size_t n_entries) { | |
d5ac1d4e | 812 | _cleanup_free_ bool *arr = NULL; |
64f05708 | 813 | char *s; |
64f05708 | 814 | |
4fe2ba0e LP |
815 | assert(entries || n_entries == 0); |
816 | ||
d5ac1d4e LP |
817 | if (n_entries == 0) |
818 | return 0; | |
819 | ||
820 | arr = new(bool, n_entries); | |
821 | if (!arr) | |
822 | return -ENOMEM; | |
823 | ||
64f05708 ZJS |
824 | /* Find _all_ non-unique titles */ |
825 | if (!find_nonunique(entries, n_entries, arr)) | |
826 | return 0; | |
827 | ||
828 | /* Add version to non-unique titles */ | |
d5ac1d4e | 829 | for (size_t i = 0; i < n_entries; i++) |
64f05708 | 830 | if (arr[i] && entries[i].version) { |
d5ac1d4e | 831 | if (asprintf(&s, "%s (%s)", boot_entry_title(entries + i), entries[i].version) < 0) |
64f05708 ZJS |
832 | return -ENOMEM; |
833 | ||
834 | free_and_replace(entries[i].show_title, s); | |
835 | } | |
836 | ||
837 | if (!find_nonunique(entries, n_entries, arr)) | |
838 | return 0; | |
839 | ||
840 | /* Add machine-id to non-unique titles */ | |
d5ac1d4e | 841 | for (size_t i = 0; i < n_entries; i++) |
64f05708 | 842 | if (arr[i] && entries[i].machine_id) { |
d5ac1d4e | 843 | if (asprintf(&s, "%s (%s)", boot_entry_title(entries + i), entries[i].machine_id) < 0) |
64f05708 ZJS |
844 | return -ENOMEM; |
845 | ||
846 | free_and_replace(entries[i].show_title, s); | |
847 | } | |
848 | ||
849 | if (!find_nonunique(entries, n_entries, arr)) | |
850 | return 0; | |
851 | ||
852 | /* Add file name to non-unique titles */ | |
d5ac1d4e | 853 | for (size_t i = 0; i < n_entries; i++) |
64f05708 | 854 | if (arr[i]) { |
d5ac1d4e | 855 | if (asprintf(&s, "%s (%s)", boot_entry_title(entries + i), entries[i].id) < 0) |
64f05708 ZJS |
856 | return -ENOMEM; |
857 | ||
858 | free_and_replace(entries[i].show_title, s); | |
859 | } | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
20ec8f53 LP |
864 | static int boot_config_find(const BootConfig *config, const char *id) { |
865 | assert(config); | |
866 | ||
867 | if (!id) | |
868 | return -1; | |
869 | ||
870 | for (size_t i = 0; i < config->n_entries; i++) | |
871 | if (fnmatch(id, config->entries[i].id, FNM_CASEFOLD) == 0) | |
872 | return i; | |
873 | ||
874 | return -1; | |
875 | } | |
876 | ||
ad1afd60 | 877 | static int boot_entries_select_default(const BootConfig *config) { |
7e87c7d9 ZJS |
878 | int i; |
879 | ||
4fe2ba0e | 880 | assert(config); |
388d2993 ZJS |
881 | assert(config->entries || config->n_entries == 0); |
882 | ||
883 | if (config->n_entries == 0) { | |
884 | log_debug("Found no default boot entry :("); | |
885 | return -1; /* -1 means "no default" */ | |
886 | } | |
4fe2ba0e | 887 | |
20ec8f53 LP |
888 | if (config->entry_oneshot) { |
889 | i = boot_config_find(config, config->entry_oneshot); | |
890 | if (i >= 0) { | |
891 | log_debug("Found default: id \"%s\" is matched by LoaderEntryOneShot", | |
892 | config->entries[i].id); | |
893 | return i; | |
894 | } | |
895 | } | |
896 | ||
897 | if (config->entry_default) { | |
898 | i = boot_config_find(config, config->entry_default); | |
899 | if (i >= 0) { | |
900 | log_debug("Found default: id \"%s\" is matched by LoaderEntryDefault", | |
901 | config->entries[i].id); | |
902 | return i; | |
903 | } | |
904 | } | |
905 | ||
906 | if (config->default_pattern) { | |
907 | i = boot_config_find(config, config->default_pattern); | |
908 | if (i >= 0) { | |
909 | log_debug("Found default: id \"%s\" is matched by pattern \"%s\"", | |
910 | config->entries[i].id, config->default_pattern); | |
911 | return i; | |
912 | } | |
913 | } | |
914 | ||
915 | log_debug("Found default: first entry \"%s\"", config->entries[0].id); | |
916 | return 0; | |
7e87c7d9 ZJS |
917 | } |
918 | ||
a78e472d | 919 | static int boot_entries_select_selected(const BootConfig *config) { |
a78e472d LP |
920 | assert(config); |
921 | assert(config->entries || config->n_entries == 0); | |
922 | ||
923 | if (!config->entry_selected || config->n_entries == 0) | |
924 | return -1; | |
925 | ||
20ec8f53 | 926 | return boot_config_find(config, config->entry_selected); |
a78e472d LP |
927 | } |
928 | ||
80a2381d | 929 | static int boot_load_efi_entry_pointers(BootConfig *config, bool skip_efivars) { |
a78e472d LP |
930 | int r; |
931 | ||
932 | assert(config); | |
933 | ||
80a2381d | 934 | if (skip_efivars || !is_efi_boot()) |
a78e472d LP |
935 | return 0; |
936 | ||
937 | /* Loads the three "pointers" to boot loader entries from their EFI variables */ | |
938 | ||
939 | r = efi_get_variable_string(EFI_LOADER_VARIABLE(LoaderEntryOneShot), &config->entry_oneshot); | |
92067ab6 LP |
940 | if (r == -ENOMEM) |
941 | return log_oom(); | |
942 | if (r < 0 && !IN_SET(r, -ENOENT, -ENODATA)) | |
943 | log_warning_errno(r, "Failed to read EFI variable \"LoaderEntryOneShot\", ignoring: %m"); | |
a78e472d LP |
944 | |
945 | r = efi_get_variable_string(EFI_LOADER_VARIABLE(LoaderEntryDefault), &config->entry_default); | |
92067ab6 LP |
946 | if (r == -ENOMEM) |
947 | return log_oom(); | |
948 | if (r < 0 && !IN_SET(r, -ENOENT, -ENODATA)) | |
949 | log_warning_errno(r, "Failed to read EFI variable \"LoaderEntryDefault\", ignoring: %m"); | |
a78e472d LP |
950 | |
951 | r = efi_get_variable_string(EFI_LOADER_VARIABLE(LoaderEntrySelected), &config->entry_selected); | |
92067ab6 LP |
952 | if (r == -ENOMEM) |
953 | return log_oom(); | |
954 | if (r < 0 && !IN_SET(r, -ENOENT, -ENODATA)) | |
955 | log_warning_errno(r, "Failed to read EFI variable \"LoaderEntrySelected\", ignoring: %m"); | |
a78e472d LP |
956 | |
957 | return 1; | |
958 | } | |
959 | ||
80a2381d | 960 | int boot_config_select_special_entries(BootConfig *config, bool skip_efivars) { |
f7a7a5e2 LP |
961 | int r; |
962 | ||
963 | assert(config); | |
964 | ||
80a2381d | 965 | r = boot_load_efi_entry_pointers(config, skip_efivars); |
f7a7a5e2 LP |
966 | if (r < 0) |
967 | return r; | |
968 | ||
969 | config->default_entry = boot_entries_select_default(config); | |
970 | config->selected_entry = boot_entries_select_selected(config); | |
971 | ||
972 | return 0; | |
973 | } | |
974 | ||
5ba1550f ZJS |
975 | int boot_config_finalize(BootConfig *config) { |
976 | int r; | |
977 | ||
978 | typesafe_qsort(config->entries, config->n_entries, boot_entry_compare); | |
979 | ||
980 | r = boot_entries_uniquify(config->entries, config->n_entries); | |
981 | if (r < 0) | |
982 | return log_error_errno(r, "Failed to uniquify boot entries: %m"); | |
983 | ||
984 | return 0; | |
985 | } | |
986 | ||
af9ae750 LP |
987 | int boot_config_load( |
988 | BootConfig *config, | |
a2f8664e | 989 | const char *esp_path, |
af9ae750 | 990 | const char *xbootldr_path) { |
a2f8664e | 991 | |
7e87c7d9 ZJS |
992 | const char *p; |
993 | int r; | |
994 | ||
4fe2ba0e LP |
995 | assert(config); |
996 | ||
a2f8664e LP |
997 | if (esp_path) { |
998 | p = strjoina(esp_path, "/loader/loader.conf"); | |
5ba1550f | 999 | r = boot_loader_read_conf_path(config, p); |
a2f8664e LP |
1000 | if (r < 0) |
1001 | return r; | |
7e87c7d9 | 1002 | |
a2f8664e | 1003 | p = strjoina(esp_path, "/loader/entries"); |
85e17916 | 1004 | r = boot_entries_find_type1(config, esp_path, p); |
a2f8664e LP |
1005 | if (r < 0) |
1006 | return r; | |
5e146a75 LP |
1007 | |
1008 | p = strjoina(esp_path, "/EFI/Linux/"); | |
85f4ae2f | 1009 | r = boot_entries_find_unified(config, esp_path, p); |
5e146a75 LP |
1010 | if (r < 0) |
1011 | return r; | |
a2f8664e LP |
1012 | } |
1013 | ||
1014 | if (xbootldr_path) { | |
1015 | p = strjoina(xbootldr_path, "/loader/entries"); | |
85e17916 | 1016 | r = boot_entries_find_type1(config, xbootldr_path, p); |
a2f8664e LP |
1017 | if (r < 0) |
1018 | return r; | |
5e146a75 LP |
1019 | |
1020 | p = strjoina(xbootldr_path, "/EFI/Linux/"); | |
85f4ae2f | 1021 | r = boot_entries_find_unified(config, xbootldr_path, p); |
5e146a75 LP |
1022 | if (r < 0) |
1023 | return r; | |
a2f8664e | 1024 | } |
7e87c7d9 | 1025 | |
5ba1550f | 1026 | return boot_config_finalize(config); |
7e87c7d9 | 1027 | } |
af918182 | 1028 | |
af9ae750 LP |
1029 | int boot_config_load_auto( |
1030 | BootConfig *config, | |
eea4ce1e | 1031 | const char *override_esp_path, |
af9ae750 | 1032 | const char *override_xbootldr_path) { |
eea4ce1e LP |
1033 | |
1034 | _cleanup_free_ char *esp_where = NULL, *xbootldr_where = NULL; | |
f63b5ad9 | 1035 | dev_t esp_devid = 0, xbootldr_devid = 0; |
eea4ce1e LP |
1036 | int r; |
1037 | ||
1038 | assert(config); | |
1039 | ||
1040 | /* This function is similar to boot_entries_load_config(), however we automatically search for the | |
1041 | * ESP and the XBOOTLDR partition unless it is explicitly specified. Also, if the user did not pass | |
1042 | * an ESP or XBOOTLDR path directly, let's see if /run/boot-loader-entries/ exists. If so, let's | |
1043 | * read data from there, as if it was an ESP (i.e. loading both entries and loader.conf data from | |
1044 | * it). This allows other boot loaders to pass boot loader entry information to our tools if they | |
1045 | * want to. */ | |
1046 | ||
1047 | if (!override_esp_path && !override_xbootldr_path) { | |
f40999f8 | 1048 | if (access("/run/boot-loader-entries/", F_OK) >= 0) |
af9ae750 | 1049 | return boot_config_load(config, "/run/boot-loader-entries/", NULL); |
eea4ce1e | 1050 | |
f40999f8 ZJS |
1051 | if (errno != ENOENT) |
1052 | return log_error_errno(errno, | |
1053 | "Failed to determine whether /run/boot-loader-entries/ exists: %m"); | |
eea4ce1e LP |
1054 | } |
1055 | ||
80a2381d | 1056 | r = find_esp_and_warn(NULL, override_esp_path, /* unprivileged_mode= */ false, &esp_where, NULL, NULL, NULL, NULL, &esp_devid); |
cc5957dc | 1057 | if (r < 0) /* we don't log about ENOKEY here, but propagate it, leaving it to the caller to log */ |
eea4ce1e LP |
1058 | return r; |
1059 | ||
80a2381d | 1060 | r = find_xbootldr_and_warn(NULL, override_xbootldr_path, /* unprivileged_mode= */ false, &xbootldr_where, NULL, &xbootldr_devid); |
eea4ce1e LP |
1061 | if (r < 0 && r != -ENOKEY) |
1062 | return r; /* It's fine if the XBOOTLDR partition doesn't exist, hence we ignore ENOKEY here */ | |
1063 | ||
f63b5ad9 | 1064 | /* If both paths actually refer to the same inode, suppress the xbootldr path */ |
7176f06c | 1065 | if (esp_where && xbootldr_where && devnum_set_and_equal(esp_devid, xbootldr_devid)) |
f63b5ad9 LP |
1066 | xbootldr_where = mfree(xbootldr_where); |
1067 | ||
af9ae750 | 1068 | return boot_config_load(config, esp_where, xbootldr_where); |
eea4ce1e LP |
1069 | } |
1070 | ||
af9ae750 | 1071 | int boot_config_augment_from_loader( |
d4bd786d | 1072 | BootConfig *config, |
9951736b LP |
1073 | char **found_by_loader, |
1074 | bool only_auto) { | |
d4bd786d LP |
1075 | |
1076 | static const char *const title_table[] = { | |
93f14ce2 LP |
1077 | /* Pretty names for a few well-known automatically discovered entries. */ |
1078 | "auto-osx", "macOS", | |
1079 | "auto-windows", "Windows Boot Manager", | |
1080 | "auto-efi-shell", "EFI Shell", | |
1081 | "auto-efi-default", "EFI Default Loader", | |
1082 | "auto-reboot-to-firmware-setup", "Reboot Into Firmware Interface", | |
d4f72d10 | 1083 | NULL, |
93f14ce2 LP |
1084 | }; |
1085 | ||
93f14ce2 LP |
1086 | assert(config); |
1087 | ||
1088 | /* Let's add the entries discovered by the boot loader to the end of our list, unless they are | |
1089 | * already included there. */ | |
1090 | ||
93f14ce2 | 1091 | STRV_FOREACH(i, found_by_loader) { |
bb682057 | 1092 | BootEntry *existing; |
ce4c4f81 | 1093 | _cleanup_free_ char *c = NULL, *t = NULL, *p = NULL; |
93f14ce2 | 1094 | |
bb682057 LP |
1095 | existing = boot_config_find_entry(config, *i); |
1096 | if (existing) { | |
1097 | existing->reported_by_loader = true; | |
93f14ce2 | 1098 | continue; |
bb682057 | 1099 | } |
93f14ce2 | 1100 | |
9951736b | 1101 | if (only_auto && !startswith(*i, "auto-")) |
93f14ce2 LP |
1102 | continue; |
1103 | ||
1104 | c = strdup(*i); | |
1105 | if (!c) | |
1106 | return log_oom(); | |
1107 | ||
2034c8b8 | 1108 | STRV_FOREACH_PAIR(a, b, title_table) |
93f14ce2 LP |
1109 | if (streq(*a, *i)) { |
1110 | t = strdup(*b); | |
1111 | if (!t) | |
1112 | return log_oom(); | |
1113 | break; | |
1114 | } | |
1115 | ||
e6f055cb | 1116 | p = strdup(EFIVAR_PATH(EFI_LOADER_VARIABLE(LoaderEntries))); |
ce4c4f81 ZJS |
1117 | if (!p) |
1118 | return log_oom(); | |
1119 | ||
319a4f4b | 1120 | if (!GREEDY_REALLOC0(config->entries, config->n_entries + 1)) |
93f14ce2 LP |
1121 | return log_oom(); |
1122 | ||
1123 | config->entries[config->n_entries++] = (BootEntry) { | |
bb682057 | 1124 | .type = startswith(*i, "auto-") ? BOOT_ENTRY_LOADER_AUTO : BOOT_ENTRY_LOADER, |
93f14ce2 LP |
1125 | .id = TAKE_PTR(c), |
1126 | .title = TAKE_PTR(t), | |
ce4c4f81 | 1127 | .path = TAKE_PTR(p), |
bb682057 | 1128 | .reported_by_loader = true, |
93f14ce2 LP |
1129 | }; |
1130 | } | |
1131 | ||
1132 | return 0; | |
1133 | } | |
3f8e42c0 | 1134 | |
432ce537 ZJS |
1135 | static int boot_entry_file_check(const char *root, const char *p) { |
1136 | _cleanup_free_ char *path = NULL; | |
1137 | ||
1138 | path = path_join(root, p); | |
1139 | if (!path) | |
1140 | return log_oom(); | |
1141 | ||
1142 | return RET_NERRNO(access(path, F_OK)); | |
1143 | } | |
1144 | ||
3f8e42c0 LP |
1145 | BootEntry* boot_config_find_entry(BootConfig *config, const char *id) { |
1146 | assert(config); | |
1147 | assert(id); | |
1148 | ||
1149 | for (size_t j = 0; j < config->n_entries; j++) | |
1150 | if (streq_ptr(config->entries[j].id, id) || | |
1151 | streq_ptr(config->entries[j].id_old, id)) | |
1152 | return config->entries + j; | |
1153 | ||
1154 | return NULL; | |
1155 | } | |
432ce537 ZJS |
1156 | |
1157 | static void boot_entry_file_list(const char *field, const char *root, const char *p, int *ret_status) { | |
1158 | int status = boot_entry_file_check(root, p); | |
1159 | ||
1160 | printf("%13s%s ", strempty(field), field ? ":" : " "); | |
1161 | if (status < 0) { | |
1162 | errno = -status; | |
1163 | printf("%s%s%s (%m)\n", ansi_highlight_red(), p, ansi_normal()); | |
1164 | } else | |
1165 | printf("%s\n", p); | |
1166 | ||
1167 | if (*ret_status == 0 && status < 0) | |
1168 | *ret_status = status; | |
1169 | } | |
1170 | ||
1171 | int show_boot_entry( | |
1172 | const BootEntry *e, | |
1173 | bool show_as_default, | |
1174 | bool show_as_selected, | |
1175 | bool show_reported) { | |
1176 | ||
1177 | int status = 0; | |
1178 | ||
1179 | /* Returns 0 on success, negative on processing error, and positive if something is wrong with the | |
1180 | boot entry itself. */ | |
1181 | ||
1182 | assert(e); | |
1183 | ||
1184 | printf(" type: %s\n", | |
1185 | boot_entry_type_to_string(e->type)); | |
1186 | ||
1187 | printf(" title: %s%s%s", | |
1188 | ansi_highlight(), boot_entry_title(e), ansi_normal()); | |
1189 | ||
1190 | if (show_as_default) | |
1191 | printf(" %s(default)%s", | |
1192 | ansi_highlight_green(), ansi_normal()); | |
1193 | ||
1194 | if (show_as_selected) | |
1195 | printf(" %s(selected)%s", | |
1196 | ansi_highlight_magenta(), ansi_normal()); | |
1197 | ||
1198 | if (show_reported) { | |
1199 | if (e->type == BOOT_ENTRY_LOADER) | |
1200 | printf(" %s(reported/absent)%s", | |
1201 | ansi_highlight_red(), ansi_normal()); | |
1202 | else if (!e->reported_by_loader && e->type != BOOT_ENTRY_LOADER_AUTO) | |
1203 | printf(" %s(not reported/new)%s", | |
1204 | ansi_highlight_green(), ansi_normal()); | |
1205 | } | |
1206 | ||
1207 | putchar('\n'); | |
1208 | ||
1209 | if (e->id) | |
1210 | printf(" id: %s\n", e->id); | |
1211 | if (e->path) { | |
1212 | _cleanup_free_ char *link = NULL; | |
1213 | ||
1214 | /* Let's urlify the link to make it easy to view in an editor, but only if it is a text | |
1215 | * file. Unified images are binary ELFs, and EFI variables are not pure text either. */ | |
1216 | if (e->type == BOOT_ENTRY_CONF) | |
1217 | (void) terminal_urlify_path(e->path, NULL, &link); | |
1218 | ||
1219 | printf(" source: %s\n", link ?: e->path); | |
1220 | } | |
1221 | if (e->sort_key) | |
1222 | printf(" sort-key: %s\n", e->sort_key); | |
1223 | if (e->version) | |
1224 | printf(" version: %s\n", e->version); | |
1225 | if (e->machine_id) | |
1226 | printf(" machine-id: %s\n", e->machine_id); | |
1227 | if (e->architecture) | |
1228 | printf(" architecture: %s\n", e->architecture); | |
1229 | if (e->kernel) | |
1230 | boot_entry_file_list("linux", e->root, e->kernel, &status); | |
1231 | ||
1232 | STRV_FOREACH(s, e->initrd) | |
1233 | boot_entry_file_list(s == e->initrd ? "initrd" : NULL, | |
1234 | e->root, | |
1235 | *s, | |
1236 | &status); | |
1237 | ||
1238 | if (!strv_isempty(e->options)) { | |
1239 | _cleanup_free_ char *t = NULL, *t2 = NULL; | |
1240 | _cleanup_strv_free_ char **ts = NULL; | |
1241 | ||
1242 | t = strv_join(e->options, " "); | |
1243 | if (!t) | |
1244 | return log_oom(); | |
1245 | ||
1246 | ts = strv_split_newlines(t); | |
1247 | if (!ts) | |
1248 | return log_oom(); | |
1249 | ||
1250 | t2 = strv_join(ts, "\n "); | |
1251 | if (!t2) | |
1252 | return log_oom(); | |
1253 | ||
1254 | printf(" options: %s\n", t2); | |
1255 | } | |
1256 | ||
1257 | if (e->device_tree) | |
1258 | boot_entry_file_list("devicetree", e->root, e->device_tree, &status); | |
1259 | ||
1260 | STRV_FOREACH(s, e->device_tree_overlay) | |
1261 | boot_entry_file_list(s == e->device_tree_overlay ? "devicetree-overlay" : NULL, | |
1262 | e->root, | |
1263 | *s, | |
1264 | &status); | |
1265 | ||
1266 | return -status; | |
1267 | } | |
1268 | ||
1269 | int show_boot_entries(const BootConfig *config, JsonFormatFlags json_format) { | |
1270 | int r; | |
1271 | ||
1272 | if (!FLAGS_SET(json_format, JSON_FORMAT_OFF)) { | |
1273 | for (size_t i = 0; i < config->n_entries; i++) { | |
1274 | _cleanup_free_ char *opts = NULL; | |
1275 | const BootEntry *e = config->entries + i; | |
1276 | _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; | |
1277 | ||
1278 | if (!strv_isempty(e->options)) { | |
1279 | opts = strv_join(e->options, " "); | |
1280 | if (!opts) | |
1281 | return log_oom(); | |
1282 | } | |
1283 | ||
1284 | r = json_build(&v, JSON_BUILD_OBJECT( | |
1285 | JSON_BUILD_PAIR_CONDITION(e->id, "id", JSON_BUILD_STRING(e->id)), | |
1286 | JSON_BUILD_PAIR_CONDITION(e->path, "path", JSON_BUILD_STRING(e->path)), | |
1287 | JSON_BUILD_PAIR_CONDITION(e->root, "root", JSON_BUILD_STRING(e->root)), | |
1288 | JSON_BUILD_PAIR_CONDITION(e->title, "title", JSON_BUILD_STRING(e->title)), | |
1289 | JSON_BUILD_PAIR_CONDITION(boot_entry_title(e), "showTitle", JSON_BUILD_STRING(boot_entry_title(e))), | |
1290 | JSON_BUILD_PAIR_CONDITION(e->sort_key, "sortKey", JSON_BUILD_STRING(e->sort_key)), | |
1291 | JSON_BUILD_PAIR_CONDITION(e->version, "version", JSON_BUILD_STRING(e->version)), | |
1292 | JSON_BUILD_PAIR_CONDITION(e->machine_id, "machineId", JSON_BUILD_STRING(e->machine_id)), | |
1293 | JSON_BUILD_PAIR_CONDITION(e->architecture, "architecture", JSON_BUILD_STRING(e->architecture)), | |
1294 | JSON_BUILD_PAIR_CONDITION(opts, "options", JSON_BUILD_STRING(opts)), | |
1295 | JSON_BUILD_PAIR_CONDITION(e->kernel, "linux", JSON_BUILD_STRING(e->kernel)), | |
1296 | JSON_BUILD_PAIR_CONDITION(e->efi, "efi", JSON_BUILD_STRING(e->efi)), | |
1297 | JSON_BUILD_PAIR_CONDITION(!strv_isempty(e->initrd), "initrd", JSON_BUILD_STRV(e->initrd)), | |
1298 | JSON_BUILD_PAIR_CONDITION(e->device_tree, "devicetree", JSON_BUILD_STRING(e->device_tree)), | |
1299 | JSON_BUILD_PAIR_CONDITION(!strv_isempty(e->device_tree_overlay), "devicetreeOverlay", JSON_BUILD_STRV(e->device_tree_overlay)))); | |
1300 | if (r < 0) | |
1301 | return log_oom(); | |
1302 | ||
1303 | json_variant_dump(v, json_format, stdout, NULL); | |
1304 | } | |
1305 | ||
1306 | } else { | |
1307 | printf("Boot Loader Entries:\n"); | |
1308 | ||
1309 | for (size_t n = 0; n < config->n_entries; n++) { | |
1310 | r = show_boot_entry( | |
1311 | config->entries + n, | |
1312 | /* show_as_default= */ n == (size_t) config->default_entry, | |
1313 | /* show_as_selected= */ n == (size_t) config->selected_entry, | |
1314 | /* show_discovered= */ true); | |
1315 | if (r < 0) | |
1316 | return r; | |
1317 | ||
1318 | if (n+1 < config->n_entries) | |
1319 | putchar('\n'); | |
1320 | } | |
1321 | } | |
1322 | ||
1323 | return 0; | |
1324 | } |