Contents of /trunk/grubby/grubby.c
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Tue Jul 7 11:12:00 2020 UTC (4 years, 2 months ago) by niro
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File size: 138257 byte(s)
Tue Jul 7 11:12:00 2020 UTC (4 years, 2 months ago) by niro
File MIME type: text/plain
File size: 138257 byte(s)
Add btrfs subvolume support for grub2
1 | /* |
2 | * grubby.c |
3 | * |
4 | * Copyright (C) 2001-2008 Red Hat, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | */ |
20 | |
21 | #ifndef _GNU_SOURCE |
22 | #define _GNU_SOURCE |
23 | #endif |
24 | #include <ctype.h> |
25 | #include <errno.h> |
26 | #include <fcntl.h> |
27 | #include <mntent.h> |
28 | #include <popt.h> |
29 | #include <stdarg.h> |
30 | #include <stdlib.h> |
31 | #include <string.h> |
32 | #include <sys/stat.h> |
33 | #include <unistd.h> |
34 | #include <libgen.h> |
35 | #include <execinfo.h> |
36 | #include <signal.h> |
37 | #include <blkid/blkid.h> |
38 | |
39 | #include "log.h" |
40 | |
41 | #ifndef DEBUG |
42 | #define DEBUG 0 |
43 | #endif |
44 | |
45 | #if DEBUG |
46 | #define dbgPrintf(format, args...) fprintf(stderr, format , ## args) |
47 | #else |
48 | #define dbgPrintf(format, args...) |
49 | #endif |
50 | |
51 | int debug = 0; /* Currently just for template debugging */ |
52 | |
53 | #define _(A) (A) |
54 | |
55 | #define MAX_EXTRA_INITRDS 16 /* code segment checked by --bootloader-probe */ |
56 | #define CODE_SEG_SIZE 128 /* code segment checked by --bootloader-probe */ |
57 | |
58 | #define NOOP_OPCODE 0x90 |
59 | #define JMP_SHORT_OPCODE 0xeb |
60 | |
61 | int isEfi = 0; |
62 | |
63 | #if defined(__aarch64__) |
64 | #define isEfiOnly 1 |
65 | #else |
66 | #define isEfiOnly 0 |
67 | #endif |
68 | |
69 | char *saved_command_line = NULL; |
70 | |
71 | const char *mounts = "/proc/mounts"; |
72 | |
73 | /* comments get lumped in with indention */ |
74 | struct lineElement { |
75 | char *item; |
76 | char *indent; |
77 | }; |
78 | |
79 | enum lineType_e { |
80 | LT_UNIDENTIFIED = 0, |
81 | LT_WHITESPACE = 1 << 0, |
82 | LT_TITLE = 1 << 1, |
83 | LT_KERNEL = 1 << 2, |
84 | LT_INITRD = 1 << 3, |
85 | LT_HYPER = 1 << 4, |
86 | LT_DEFAULT = 1 << 5, |
87 | LT_MBMODULE = 1 << 6, |
88 | LT_ROOT = 1 << 7, |
89 | LT_FALLBACK = 1 << 8, |
90 | LT_KERNELARGS = 1 << 9, |
91 | LT_BOOT = 1 << 10, |
92 | LT_BOOTROOT = 1 << 11, |
93 | LT_LBA = 1 << 12, |
94 | LT_OTHER = 1 << 13, |
95 | LT_GENERIC = 1 << 14, |
96 | LT_ECHO = 1 << 16, |
97 | LT_MENUENTRY = 1 << 17, |
98 | LT_ENTRY_END = 1 << 18, |
99 | LT_SET_VARIABLE = 1 << 19, |
100 | LT_KERNEL_EFI = 1 << 20, |
101 | LT_INITRD_EFI = 1 << 21, |
102 | LT_KERNEL_16 = 1 << 22, |
103 | LT_INITRD_16 = 1 << 23, |
104 | LT_DEVTREE = 1 << 24, |
105 | LT_UNKNOWN = 1 << 25, |
106 | }; |
107 | |
108 | struct singleLine { |
109 | char *indent; |
110 | int numElements; |
111 | struct lineElement *elements; |
112 | struct singleLine *next; |
113 | enum lineType_e type; |
114 | }; |
115 | |
116 | struct singleEntry { |
117 | struct singleLine *lines; |
118 | int skip; |
119 | int multiboot; |
120 | struct singleEntry *next; |
121 | }; |
122 | |
123 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) |
124 | |
125 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ |
126 | |
127 | /* These defines are (only) used in addNewKernel() */ |
128 | #define NEED_KERNEL (1 << 0) |
129 | #define NEED_INITRD (1 << 1) |
130 | #define NEED_TITLE (1 << 2) |
131 | #define NEED_ARGS (1 << 3) |
132 | #define NEED_MB (1 << 4) |
133 | #define NEED_END (1 << 5) |
134 | #define NEED_DEVTREE (1 << 6) |
135 | |
136 | #define MAIN_DEFAULT (1 << 0) |
137 | #define FIRST_ENTRY_INDEX 0 /* boot entry index value begin and increment |
138 | from this initial value */ |
139 | #define NO_DEFAULT_ENTRY -1 /* indicates that no specific default boot |
140 | entry was set or currently exists */ |
141 | #define DEFAULT_SAVED -2 |
142 | #define DEFAULT_SAVED_GRUB2 -3 |
143 | |
144 | struct keywordTypes { |
145 | char *key; |
146 | enum lineType_e type; |
147 | char nextChar; |
148 | char separatorChar; |
149 | }; |
150 | |
151 | struct configFileInfo; |
152 | |
153 | typedef const char *(*findConfigFunc) (struct configFileInfo *); |
154 | typedef const int (*writeLineFunc) (struct configFileInfo *, |
155 | struct singleLine * line); |
156 | typedef char *(*getEnvFunc) (struct configFileInfo *, char *name); |
157 | typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value); |
158 | |
159 | struct configFileInfo { |
160 | char *defaultConfig; |
161 | findConfigFunc findConfig; |
162 | writeLineFunc writeLine; |
163 | getEnvFunc getEnv; |
164 | setEnvFunc setEnv; |
165 | struct keywordTypes *keywords; |
166 | int caseInsensitive; |
167 | int defaultIsIndex; |
168 | int defaultIsVariable; |
169 | int defaultSupportSaved; |
170 | int defaultIsSaved; |
171 | int defaultIsUnquoted; |
172 | enum lineType_e entryStart; |
173 | enum lineType_e entryEnd; |
174 | int needsBootPrefix; |
175 | int argsInQuotes; |
176 | int maxTitleLength; |
177 | int titleBracketed; |
178 | int titlePosition; |
179 | int mbHyperFirst; |
180 | int mbInitRdIsModule; |
181 | int mbConcatArgs; |
182 | int mbAllowExtraInitRds; |
183 | char *envFile; |
184 | }; |
185 | |
186 | struct keywordTypes grubKeywords[] = { |
187 | {"title", LT_TITLE, ' '}, |
188 | {"root", LT_BOOTROOT, ' '}, |
189 | {"default", LT_DEFAULT, ' '}, |
190 | {"fallback", LT_FALLBACK, ' '}, |
191 | {"kernel", LT_KERNEL, ' '}, |
192 | {"initrd", LT_INITRD, ' ', ' '}, |
193 | {"module", LT_MBMODULE, ' '}, |
194 | {"kernel", LT_HYPER, ' '}, |
195 | {NULL, 0, 0}, |
196 | }; |
197 | |
198 | const char *grubFindConfig(struct configFileInfo *cfi) |
199 | { |
200 | static const char *configFiles[] = { |
201 | "/boot/grub/grub.conf", |
202 | "/boot/grub/menu.lst", |
203 | "/etc/grub.conf", |
204 | NULL |
205 | }; |
206 | static int i = -1; |
207 | |
208 | if (i == -1) { |
209 | for (i = 0; configFiles[i] != NULL; i++) { |
210 | dbgPrintf("Checking \"%s\": ", configFiles[i]); |
211 | if (!access(configFiles[i], R_OK)) { |
212 | dbgPrintf("found\n"); |
213 | return configFiles[i]; |
214 | } |
215 | dbgPrintf("not found\n"); |
216 | } |
217 | } |
218 | return configFiles[i]; |
219 | } |
220 | |
221 | struct configFileInfo grubConfigType = { |
222 | .findConfig = grubFindConfig, |
223 | .keywords = grubKeywords, |
224 | .defaultIsIndex = 1, |
225 | .defaultSupportSaved = 1, |
226 | .entryStart = LT_TITLE, |
227 | .needsBootPrefix = 1, |
228 | .mbHyperFirst = 1, |
229 | .mbInitRdIsModule = 1, |
230 | .mbAllowExtraInitRds = 1, |
231 | .titlePosition = 1, |
232 | }; |
233 | |
234 | struct keywordTypes grub2Keywords[] = { |
235 | {"menuentry", LT_MENUENTRY, ' '}, |
236 | {"}", LT_ENTRY_END, ' '}, |
237 | {"echo", LT_ECHO, ' '}, |
238 | {"set", LT_SET_VARIABLE, ' ', '='}, |
239 | {"root", LT_BOOTROOT, ' '}, |
240 | {"default", LT_DEFAULT, ' '}, |
241 | {"fallback", LT_FALLBACK, ' '}, |
242 | {"linux", LT_KERNEL, ' '}, |
243 | {"linuxefi", LT_KERNEL_EFI, ' '}, |
244 | {"linux16", LT_KERNEL_16, ' '}, |
245 | {"initrd", LT_INITRD, ' ', ' '}, |
246 | {"initrdefi", LT_INITRD_EFI, ' ', ' '}, |
247 | {"initrd16", LT_INITRD_16, ' ', ' '}, |
248 | {"module", LT_MBMODULE, ' '}, |
249 | {"kernel", LT_HYPER, ' '}, |
250 | {"devicetree", LT_DEVTREE, ' '}, |
251 | {NULL, 0, 0}, |
252 | }; |
253 | |
254 | const char *grub2FindConfig(struct configFileInfo *cfi) |
255 | { |
256 | static const char *configFiles[] = { |
257 | "/boot/grub/grub-efi.cfg", |
258 | "/boot/grub/grub.cfg", |
259 | "/etc/grub2-efi.cfg", |
260 | "/etc/grub2.cfg", |
261 | "/boot/grub2/grub.cfg", |
262 | "/boot/grub2-efi/grub.cfg", |
263 | NULL |
264 | }; |
265 | static int i = -1; |
266 | static const char *grub_cfg = "/boot/grub/grub.cfg"; |
267 | int rc = -1; |
268 | |
269 | if (i == -1) { |
270 | for (i = 0; configFiles[i] != NULL; i++) { |
271 | dbgPrintf("Checking \"%s\": ", configFiles[i]); |
272 | if ((rc = access(configFiles[i], R_OK))) { |
273 | if (errno == EACCES) { |
274 | printf |
275 | ("Unable to access bootloader configuration file " |
276 | "\"%s\": %m\n", configFiles[i]); |
277 | exit(1); |
278 | } |
279 | continue; |
280 | } else { |
281 | dbgPrintf("found\n"); |
282 | return configFiles[i]; |
283 | } |
284 | } |
285 | } |
286 | |
287 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory |
288 | * that isn't in grub1, and if it exists, return the config file path |
289 | * that they use. */ |
290 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { |
291 | dbgPrintf("found\n"); |
292 | return grub_cfg; |
293 | } |
294 | |
295 | dbgPrintf("not found\n"); |
296 | return configFiles[i]; |
297 | } |
298 | |
299 | /* kind of hacky. It'll give the first 1024 bytes, ish. */ |
300 | static char *grub2GetEnv(struct configFileInfo *info, char *name) |
301 | { |
302 | static char buf[1025]; |
303 | char *s = NULL; |
304 | char *ret = NULL; |
305 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
306 | int rc = |
307 | asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name); |
308 | |
309 | if (rc < 0) |
310 | return NULL; |
311 | |
312 | FILE *f = popen(s, "r"); |
313 | if (!f) |
314 | goto out; |
315 | |
316 | memset(buf, '\0', sizeof(buf)); |
317 | ret = fgets(buf, 1024, f); |
318 | pclose(f); |
319 | |
320 | if (ret) { |
321 | ret += strlen(name) + 1; |
322 | ret[strlen(ret) - 1] = '\0'; |
323 | } |
324 | dbgPrintf("grub2GetEnv(%s): %s\n", name, ret); |
325 | out: |
326 | free(s); |
327 | return ret; |
328 | } |
329 | |
330 | static int sPopCount(const char *s, const char *c) |
331 | { |
332 | int ret = 0; |
333 | if (!s) |
334 | return -1; |
335 | for (int i = 0; s[i] != '\0'; i++) |
336 | for (int j = 0; c[j] != '\0'; j++) |
337 | if (s[i] == c[j]) |
338 | ret++; |
339 | return ret; |
340 | } |
341 | |
342 | static char *shellEscape(const char *s) |
343 | { |
344 | int l = strlen(s) + sPopCount(s, "'") * 2; |
345 | |
346 | char *ret = calloc(l + 1, sizeof(*ret)); |
347 | if (!ret) |
348 | return NULL; |
349 | for (int i = 0, j = 0; s[i] != '\0'; i++, j++) { |
350 | if (s[i] == '\'') |
351 | ret[j++] = '\\'; |
352 | ret[j] = s[i]; |
353 | } |
354 | return ret; |
355 | } |
356 | |
357 | static void unquote(char *s) |
358 | { |
359 | int l = strlen(s); |
360 | |
361 | if ((s[l - 1] == '\'' && s[0] == '\'') |
362 | || (s[l - 1] == '"' && s[0] == '"')) { |
363 | memmove(s, s + 1, l - 2); |
364 | s[l - 2] = '\0'; |
365 | } |
366 | } |
367 | |
368 | static int grub2SetEnv(struct configFileInfo *info, char *name, char *value) |
369 | { |
370 | char *s = NULL; |
371 | int rc = 0; |
372 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
373 | |
374 | unquote(value); |
375 | value = shellEscape(value); |
376 | if (!value) |
377 | return -1; |
378 | |
379 | rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value); |
380 | free(value); |
381 | if (rc < 0) |
382 | return -1; |
383 | |
384 | dbgPrintf("grub2SetEnv(%s): %s\n", name, s); |
385 | rc = system(s); |
386 | free(s); |
387 | return rc; |
388 | } |
389 | |
390 | /* this is a gigantic hack to avoid clobbering grub2 variables... */ |
391 | static int is_special_grub2_variable(const char *name) |
392 | { |
393 | if (!strcmp(name, "\"${next_entry}\"")) |
394 | return 1; |
395 | if (!strcmp(name, "\"${prev_saved_entry}\"")) |
396 | return 1; |
397 | return 0; |
398 | } |
399 | |
400 | int sizeOfSingleLine(struct singleLine *line) |
401 | { |
402 | int count = 0; |
403 | |
404 | for (int i = 0; i < line->numElements; i++) { |
405 | int indentSize = 0; |
406 | |
407 | count = count + strlen(line->elements[i].item); |
408 | |
409 | indentSize = strlen(line->elements[i].indent); |
410 | if (indentSize > 0) |
411 | count = count + indentSize; |
412 | else |
413 | /* be extra safe and add room for whitespaces */ |
414 | count = count + 1; |
415 | } |
416 | |
417 | /* room for trailing terminator */ |
418 | count = count + 1; |
419 | |
420 | return count; |
421 | } |
422 | |
423 | static int isquote(char q) |
424 | { |
425 | if (q == '\'' || q == '\"') |
426 | return 1; |
427 | return 0; |
428 | } |
429 | |
430 | static int iskernel(enum lineType_e type) |
431 | { |
432 | return (type == LT_KERNEL || type == LT_KERNEL_EFI |
433 | || type == LT_KERNEL_16); |
434 | } |
435 | |
436 | static int isinitrd(enum lineType_e type) |
437 | { |
438 | return (type == LT_INITRD || type == LT_INITRD_EFI |
439 | || type == LT_INITRD_16); |
440 | } |
441 | |
442 | char *grub2ExtractTitle(struct singleLine *line) |
443 | { |
444 | char *current; |
445 | char *current_indent; |
446 | int current_len; |
447 | int current_indent_len; |
448 | int i; |
449 | |
450 | /* bail out if line does not start with menuentry */ |
451 | if (strcmp(line->elements[0].item, "menuentry")) |
452 | return NULL; |
453 | |
454 | i = 1; |
455 | current = line->elements[i].item; |
456 | current_len = strlen(current); |
457 | |
458 | /* if second word is quoted, strip the quotes and return single word */ |
459 | if (isquote(*current) && isquote(current[current_len - 1])) { |
460 | char *tmp; |
461 | |
462 | tmp = strdup(current + 1); |
463 | if (!tmp) |
464 | return NULL; |
465 | tmp[strlen(tmp) - 1] = '\0'; |
466 | return tmp; |
467 | } |
468 | |
469 | /* if no quotes, return second word verbatim */ |
470 | if (!isquote(*current)) |
471 | return current; |
472 | |
473 | /* second element start with a quote, so we have to find the element |
474 | * whose last character is also quote (assuming it's the closing one) */ |
475 | int resultMaxSize; |
476 | char *result; |
477 | /* need to ensure that ' does not match " as we search */ |
478 | char quote_char = *current; |
479 | |
480 | resultMaxSize = sizeOfSingleLine(line); |
481 | result = malloc(resultMaxSize); |
482 | snprintf(result, resultMaxSize, "%s", ++current); |
483 | |
484 | i++; |
485 | for (; i < line->numElements; ++i) { |
486 | current = line->elements[i].item; |
487 | current_len = strlen(current); |
488 | current_indent = line->elements[i].indent; |
489 | current_indent_len = strlen(current_indent); |
490 | |
491 | strncat(result, current_indent, current_indent_len); |
492 | if (current[current_len - 1] != quote_char) { |
493 | strncat(result, current, current_len); |
494 | } else { |
495 | strncat(result, current, current_len - 1); |
496 | break; |
497 | } |
498 | } |
499 | return result; |
500 | } |
501 | |
502 | struct configFileInfo grub2ConfigType = { |
503 | .findConfig = grub2FindConfig, |
504 | .getEnv = grub2GetEnv, |
505 | .setEnv = grub2SetEnv, |
506 | .keywords = grub2Keywords, |
507 | .defaultIsIndex = 1, |
508 | .defaultSupportSaved = 1, |
509 | .defaultIsVariable = 1, |
510 | .entryStart = LT_MENUENTRY, |
511 | .entryEnd = LT_ENTRY_END, |
512 | .titlePosition = 1, |
513 | .needsBootPrefix = 1, |
514 | .mbHyperFirst = 1, |
515 | .mbInitRdIsModule = 1, |
516 | .mbAllowExtraInitRds = 1, |
517 | }; |
518 | |
519 | struct keywordTypes yabootKeywords[] = { |
520 | {"label", LT_TITLE, '='}, |
521 | {"root", LT_ROOT, '='}, |
522 | {"default", LT_DEFAULT, '='}, |
523 | {"image", LT_KERNEL, '='}, |
524 | {"bsd", LT_GENERIC, '='}, |
525 | {"macos", LT_GENERIC, '='}, |
526 | {"macosx", LT_GENERIC, '='}, |
527 | {"magicboot", LT_GENERIC, '='}, |
528 | {"darwin", LT_GENERIC, '='}, |
529 | {"timeout", LT_GENERIC, '='}, |
530 | {"install", LT_GENERIC, '='}, |
531 | {"fstype", LT_GENERIC, '='}, |
532 | {"hfstype", LT_GENERIC, '='}, |
533 | {"delay", LT_GENERIC, '='}, |
534 | {"defaultos", LT_GENERIC, '='}, |
535 | {"init-message", LT_GENERIC, '='}, |
536 | {"enablecdboot", LT_GENERIC, ' '}, |
537 | {"enableofboot", LT_GENERIC, ' '}, |
538 | {"enablenetboot", LT_GENERIC, ' '}, |
539 | {"nonvram", LT_GENERIC, ' '}, |
540 | {"hide", LT_GENERIC, ' '}, |
541 | {"protect", LT_GENERIC, ' '}, |
542 | {"nobless", LT_GENERIC, ' '}, |
543 | {"nonvram", LT_GENERIC, ' '}, |
544 | {"brokenosx", LT_GENERIC, ' '}, |
545 | {"usemount", LT_GENERIC, ' '}, |
546 | {"mntpoint", LT_GENERIC, '='}, |
547 | {"partition", LT_GENERIC, '='}, |
548 | {"device", LT_GENERIC, '='}, |
549 | {"fstype", LT_GENERIC, '='}, |
550 | {"initrd", LT_INITRD, '=', ';'}, |
551 | {"append", LT_KERNELARGS, '='}, |
552 | {"boot", LT_BOOT, '='}, |
553 | {"lba", LT_LBA, ' '}, |
554 | {NULL, 0, 0}, |
555 | }; |
556 | |
557 | struct keywordTypes liloKeywords[] = { |
558 | {"label", LT_TITLE, '='}, |
559 | {"root", LT_ROOT, '='}, |
560 | {"default", LT_DEFAULT, '='}, |
561 | {"image", LT_KERNEL, '='}, |
562 | {"other", LT_OTHER, '='}, |
563 | {"initrd", LT_INITRD, '='}, |
564 | {"append", LT_KERNELARGS, '='}, |
565 | {"boot", LT_BOOT, '='}, |
566 | {"lba", LT_LBA, ' '}, |
567 | {NULL, 0, 0}, |
568 | }; |
569 | |
570 | struct keywordTypes eliloKeywords[] = { |
571 | {"label", LT_TITLE, '='}, |
572 | {"root", LT_ROOT, '='}, |
573 | {"default", LT_DEFAULT, '='}, |
574 | {"image", LT_KERNEL, '='}, |
575 | {"initrd", LT_INITRD, '='}, |
576 | {"append", LT_KERNELARGS, '='}, |
577 | {"vmm", LT_HYPER, '='}, |
578 | {NULL, 0, 0}, |
579 | }; |
580 | |
581 | struct keywordTypes siloKeywords[] = { |
582 | {"label", LT_TITLE, '='}, |
583 | {"root", LT_ROOT, '='}, |
584 | {"default", LT_DEFAULT, '='}, |
585 | {"image", LT_KERNEL, '='}, |
586 | {"other", LT_OTHER, '='}, |
587 | {"initrd", LT_INITRD, '='}, |
588 | {"append", LT_KERNELARGS, '='}, |
589 | {"boot", LT_BOOT, '='}, |
590 | {NULL, 0, 0}, |
591 | }; |
592 | |
593 | struct keywordTypes ziplKeywords[] = { |
594 | {"target", LT_BOOTROOT, '='}, |
595 | {"image", LT_KERNEL, '='}, |
596 | {"ramdisk", LT_INITRD, '='}, |
597 | {"parameters", LT_KERNELARGS, '='}, |
598 | {"default", LT_DEFAULT, '='}, |
599 | {NULL, 0, 0}, |
600 | }; |
601 | |
602 | struct keywordTypes extlinuxKeywords[] = { |
603 | {"label", LT_TITLE, ' '}, |
604 | {"root", LT_ROOT, ' '}, |
605 | {"default", LT_DEFAULT, ' '}, |
606 | {"kernel", LT_KERNEL, ' '}, |
607 | {"initrd", LT_INITRD, ' ', ','}, |
608 | {"append", LT_KERNELARGS, ' '}, |
609 | {"prompt", LT_UNKNOWN, ' '}, |
610 | {"fdt", LT_DEVTREE, ' '}, |
611 | {"fdtdir", LT_DEVTREE, ' '}, |
612 | {NULL, 0, 0}, |
613 | }; |
614 | |
615 | int useextlinuxmenu; |
616 | struct configFileInfo eliloConfigType = { |
617 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
618 | .keywords = eliloKeywords, |
619 | .entryStart = LT_KERNEL, |
620 | .needsBootPrefix = 1, |
621 | .argsInQuotes = 1, |
622 | .mbConcatArgs = 1, |
623 | .titlePosition = 1, |
624 | }; |
625 | |
626 | struct configFileInfo liloConfigType = { |
627 | .defaultConfig = "/etc/lilo.conf", |
628 | .keywords = liloKeywords, |
629 | .entryStart = LT_KERNEL, |
630 | .argsInQuotes = 1, |
631 | .maxTitleLength = 15, |
632 | .titlePosition = 1, |
633 | }; |
634 | |
635 | struct configFileInfo yabootConfigType = { |
636 | .defaultConfig = "/etc/yaboot.conf", |
637 | .keywords = yabootKeywords, |
638 | .entryStart = LT_KERNEL, |
639 | .needsBootPrefix = 1, |
640 | .argsInQuotes = 1, |
641 | .maxTitleLength = 15, |
642 | .mbAllowExtraInitRds = 1, |
643 | .titlePosition = 1, |
644 | }; |
645 | |
646 | struct configFileInfo siloConfigType = { |
647 | .defaultConfig = "/etc/silo.conf", |
648 | .keywords = siloKeywords, |
649 | .entryStart = LT_KERNEL, |
650 | .needsBootPrefix = 1, |
651 | .argsInQuotes = 1, |
652 | .maxTitleLength = 15, |
653 | .titlePosition = 1, |
654 | }; |
655 | |
656 | struct configFileInfo ziplConfigType = { |
657 | .defaultConfig = "/etc/zipl.conf", |
658 | .keywords = ziplKeywords, |
659 | .entryStart = LT_TITLE, |
660 | .argsInQuotes = 1, |
661 | .titleBracketed = 1, |
662 | }; |
663 | |
664 | struct configFileInfo extlinuxConfigType = { |
665 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
666 | .keywords = extlinuxKeywords, |
667 | .caseInsensitive = 1, |
668 | .entryStart = LT_TITLE, |
669 | .needsBootPrefix = 1, |
670 | .maxTitleLength = 255, |
671 | .mbAllowExtraInitRds = 1, |
672 | .defaultIsUnquoted = 1, |
673 | .titlePosition = 1, |
674 | }; |
675 | |
676 | struct grubConfig { |
677 | struct singleLine *theLines; |
678 | struct singleEntry *entries; |
679 | char *primaryIndent; |
680 | char *secondaryIndent; |
681 | int defaultImage; /* -1 if none specified -- this value is |
682 | * written out, overriding original */ |
683 | int fallbackImage; /* just like defaultImage */ |
684 | int flags; |
685 | struct configFileInfo *cfi; |
686 | int isModified; /* assumes only one entry added |
687 | per invocation of grubby */ |
688 | }; |
689 | |
690 | blkid_cache blkid; |
691 | |
692 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index); |
693 | struct singleEntry *findEntryByPath(struct grubConfig *cfg, |
694 | const char *path, const char *prefix, |
695 | int *index); |
696 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
697 | int *index); |
698 | static int readFile(int fd, char **bufPtr); |
699 | static void lineInit(struct singleLine *line); |
700 | struct singleLine *lineDup(struct singleLine *line); |
701 | static void lineFree(struct singleLine *line); |
702 | static int lineWrite(FILE * out, struct singleLine *line, |
703 | struct configFileInfo *cfi); |
704 | static int getNextLine(char **bufPtr, struct singleLine *line, |
705 | struct configFileInfo *cfi); |
706 | static size_t getRootSpecifier(const char *str); |
707 | static void requote(struct singleLine *line, struct configFileInfo *cfi); |
708 | static void insertElement(struct singleLine *line, |
709 | const char *item, int insertHere, |
710 | struct configFileInfo *cfi); |
711 | static void removeElement(struct singleLine *line, int removeHere); |
712 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
713 | struct configFileInfo *cfi); |
714 | static enum lineType_e getTypeByKeyword(char *keyword, |
715 | struct configFileInfo *cfi); |
716 | static struct singleLine *getLineByType(enum lineType_e type, |
717 | struct singleLine *line); |
718 | static int checkForExtLinux(struct grubConfig *config); |
719 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
720 | struct singleLine *tmplLine, |
721 | struct singleLine *prevLine, |
722 | const char *val, struct configFileInfo *cfi); |
723 | struct singleLine *addLine(struct singleEntry *entry, |
724 | struct configFileInfo *cfi, |
725 | enum lineType_e type, char *defaultIndent, |
726 | const char *val); |
727 | |
728 | static char *sdupprintf(const char *format, ...) |
729 | #ifdef __GNUC__ |
730 | __attribute__ ((format(printf, 1, 2))); |
731 | #else |
732 | ; |
733 | #endif |
734 | |
735 | static char *sdupprintf(const char *format, ...) |
736 | { |
737 | char *buf = NULL; |
738 | char c; |
739 | va_list args; |
740 | size_t size = 0; |
741 | va_start(args, format); |
742 | |
743 | /* XXX requires C99 vsnprintf behavior */ |
744 | size = vsnprintf(&c, 1, format, args) + 1; |
745 | if (size == -1) { |
746 | printf("ERROR: vsnprintf behavior is not C99\n"); |
747 | abort(); |
748 | } |
749 | |
750 | va_end(args); |
751 | va_start(args, format); |
752 | |
753 | buf = malloc(size); |
754 | if (buf == NULL) |
755 | return NULL; |
756 | vsnprintf(buf, size, format, args); |
757 | va_end(args); |
758 | |
759 | return buf; |
760 | } |
761 | |
762 | static inline int |
763 | kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive) |
764 | { |
765 | int kwl = strlen(kw->key); |
766 | int ll = strlen(label); |
767 | int rc; |
768 | int (*snc)(const char *s1, const char *s2, size_t n) = |
769 | case_insensitive ? strncasecmp : strncmp; |
770 | int (*sc)(const char *s1, const char *s2) = |
771 | case_insensitive ? strcasecmp : strcmp; |
772 | |
773 | rc = snc(kw->key, label, kwl); |
774 | if (rc) |
775 | return rc; |
776 | |
777 | for (int i = kwl; i < ll; i++) { |
778 | if (isspace(label[i])) |
779 | return 0; |
780 | if (kw->separatorChar && label[i] == kw->separatorChar) |
781 | return 0; |
782 | else if (kw->nextChar && label[i] == kw->nextChar) |
783 | return 0; |
784 | return sc(kw->key+kwl, label+kwl); |
785 | } |
786 | return 0; |
787 | } |
788 | |
789 | static enum lineType_e preferredLineType(enum lineType_e type, |
790 | struct configFileInfo *cfi) |
791 | { |
792 | if (isEfi && cfi == &grub2ConfigType) { |
793 | switch (type) { |
794 | case LT_KERNEL: |
795 | return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI; |
796 | case LT_INITRD: |
797 | return isEfiOnly ? LT_INITRD : LT_INITRD_EFI; |
798 | default: |
799 | return type; |
800 | } |
801 | #if defined(__i386__) || defined(__x86_64__) |
802 | } else if (cfi == &grub2ConfigType) { |
803 | switch (type) { |
804 | case LT_KERNEL: |
805 | return LT_KERNEL_16; |
806 | case LT_INITRD: |
807 | return LT_INITRD_16; |
808 | default: |
809 | return type; |
810 | } |
811 | #endif |
812 | } |
813 | return type; |
814 | } |
815 | |
816 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
817 | struct configFileInfo *cfi) |
818 | { |
819 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
820 | if (kw->type == type) |
821 | return kw; |
822 | } |
823 | return NULL; |
824 | } |
825 | |
826 | static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi) |
827 | { |
828 | struct keywordTypes *kt = getKeywordByType(type, cfi); |
829 | if (kt) |
830 | return kt->key; |
831 | return "unknown"; |
832 | } |
833 | |
834 | static char *getpathbyspec(char *device) |
835 | { |
836 | if (!blkid) |
837 | blkid_get_cache(&blkid, NULL); |
838 | |
839 | return blkid_get_devname(blkid, device, NULL); |
840 | } |
841 | |
842 | static char *getuuidbydev(char *device) |
843 | { |
844 | if (!blkid) |
845 | blkid_get_cache(&blkid, NULL); |
846 | |
847 | return blkid_get_tag_value(blkid, "UUID", device); |
848 | } |
849 | |
850 | static enum lineType_e getTypeByKeyword(char *keyword, |
851 | struct configFileInfo *cfi) |
852 | { |
853 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
854 | if (!kwcmp(kw, keyword, cfi->caseInsensitive)) |
855 | return kw->type; |
856 | } |
857 | return LT_UNKNOWN; |
858 | } |
859 | |
860 | static struct singleLine *getLineByType(enum lineType_e type, |
861 | struct singleLine *line) |
862 | { |
863 | dbgPrintf("getLineByType(%d): ", type); |
864 | for (; line; line = line->next) { |
865 | dbgPrintf("%d:%s ", line->type, |
866 | line->numElements ? line->elements[0]. |
867 | item : "(empty)"); |
868 | if (line->type & type) |
869 | break; |
870 | } |
871 | dbgPrintf(line ? "\n" : " (failed)\n"); |
872 | return line; |
873 | } |
874 | |
875 | static int isBracketedTitle(struct singleLine *line) |
876 | { |
877 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
878 | int len = strlen(line->elements[0].item); |
879 | if (*(line->elements[0].item + len - 1) == ']') { |
880 | /* FIXME: this is a hack... */ |
881 | if (strcmp(line->elements[0].item, "[defaultboot]")) { |
882 | return 1; |
883 | } |
884 | } |
885 | } |
886 | return 0; |
887 | } |
888 | |
889 | static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi) |
890 | { |
891 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
892 | (cfi->titleBracketed && isBracketedTitle(line)); |
893 | } |
894 | |
895 | /* extract the title from within brackets (for zipl) */ |
896 | static char *extractTitle(struct grubConfig *cfg, struct singleLine *line) |
897 | { |
898 | /* bracketed title... let's extract it */ |
899 | char *title = NULL; |
900 | if (line->type == LT_TITLE) { |
901 | char *tmp = line->elements[cfg->cfi->titlePosition].item; |
902 | if (cfg->cfi->titleBracketed) { |
903 | tmp++; |
904 | title = strdup(tmp); |
905 | *(title + strlen(title) - 1) = '\0'; |
906 | } else { |
907 | title = strdup(tmp); |
908 | } |
909 | } else if (line->type == LT_MENUENTRY) |
910 | title = strdup(line->elements[1].item); |
911 | else |
912 | return NULL; |
913 | return title; |
914 | } |
915 | |
916 | static int readFile(int fd, char **bufPtr) |
917 | { |
918 | int alloced = 0, size = 0, i = 0; |
919 | char *buf = NULL; |
920 | |
921 | do { |
922 | size += i; |
923 | if ((size + 1024) > alloced) { |
924 | alloced += 4096; |
925 | buf = realloc(buf, alloced + 1); |
926 | } |
927 | } while ((i = read(fd, buf + size, 1024)) > 0); |
928 | |
929 | if (i < 0) { |
930 | fprintf(stderr, _("error reading input: %s\n"), |
931 | strerror(errno)); |
932 | free(buf); |
933 | return 1; |
934 | } |
935 | |
936 | buf = realloc(buf, size + 2); |
937 | if (size == 0) |
938 | buf[size++] = '\n'; |
939 | else if (buf[size - 1] != '\n') |
940 | buf[size++] = '\n'; |
941 | buf[size] = '\0'; |
942 | |
943 | *bufPtr = buf; |
944 | |
945 | return 0; |
946 | } |
947 | |
948 | static void lineInit(struct singleLine *line) |
949 | { |
950 | line->type = LT_UNIDENTIFIED; |
951 | line->indent = NULL; |
952 | line->elements = NULL; |
953 | line->numElements = 0; |
954 | line->next = NULL; |
955 | } |
956 | |
957 | struct singleLine *lineDup(struct singleLine *line) |
958 | { |
959 | struct singleLine *newLine = malloc(sizeof(*newLine)); |
960 | |
961 | newLine->indent = strdup(line->indent); |
962 | newLine->next = NULL; |
963 | newLine->type = line->type; |
964 | newLine->numElements = line->numElements; |
965 | newLine->elements = malloc(sizeof(*newLine->elements) * |
966 | newLine->numElements); |
967 | |
968 | for (int i = 0; i < newLine->numElements; i++) { |
969 | newLine->elements[i].indent = strdup(line->elements[i].indent); |
970 | newLine->elements[i].item = strdup(line->elements[i].item); |
971 | } |
972 | |
973 | return newLine; |
974 | } |
975 | |
976 | static void lineFree(struct singleLine *line) |
977 | { |
978 | if (line->indent) |
979 | free(line->indent); |
980 | |
981 | for (int i = 0; i < line->numElements; i++) { |
982 | free(line->elements[i].item); |
983 | free(line->elements[i].indent); |
984 | } |
985 | |
986 | if (line->elements) |
987 | free(line->elements); |
988 | lineInit(line); |
989 | } |
990 | |
991 | static int lineWrite(FILE * out, struct singleLine *line, |
992 | struct configFileInfo *cfi) |
993 | { |
994 | if (fprintf(out, "%s", line->indent) == -1) |
995 | return -1; |
996 | |
997 | for (int i = 0; i < line->numElements; i++) { |
998 | /* Need to handle this, because we strip the quotes from |
999 | * menuentry when read it. */ |
1000 | if (line->type == LT_MENUENTRY && i == 1) { |
1001 | if (!isquote(*line->elements[i].item)) { |
1002 | int substring = 0; |
1003 | /* If the line contains nested quotes, we did |
1004 | * not strip the "interna" quotes and we must |
1005 | * use the right quotes again when writing |
1006 | * the updated file. */ |
1007 | for (int j = i; j < line->numElements; j++) { |
1008 | if (strchr(line->elements[i].item, '\'') |
1009 | != NULL) { |
1010 | substring = 1; |
1011 | fprintf(out, "\"%s\"", |
1012 | line->elements[i].item); |
1013 | break; |
1014 | } |
1015 | } |
1016 | if (!substring) |
1017 | fprintf(out, "\'%s\'", |
1018 | line->elements[i].item); |
1019 | } else { |
1020 | fprintf(out, "%s", line->elements[i].item); |
1021 | } |
1022 | fprintf(out, "%s", line->elements[i].indent); |
1023 | |
1024 | continue; |
1025 | } |
1026 | |
1027 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1028 | if (fputc('"', out) == EOF) |
1029 | return -1; |
1030 | |
1031 | if (fprintf(out, "%s", line->elements[i].item) == -1) |
1032 | return -1; |
1033 | if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE) |
1034 | if (fprintf(out, "%s", line->elements[i].indent) == -1) |
1035 | return -1; |
1036 | } |
1037 | |
1038 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1039 | if (fputc('"', out) == EOF) |
1040 | return -1; |
1041 | |
1042 | if (fprintf(out, "\n") == -1) |
1043 | return -1; |
1044 | |
1045 | return 0; |
1046 | } |
1047 | |
1048 | /* we've guaranteed that the buffer ends w/ \n\0 */ |
1049 | static int getNextLine(char **bufPtr, struct singleLine *line, |
1050 | struct configFileInfo *cfi) |
1051 | { |
1052 | char *end; |
1053 | char *start = *bufPtr; |
1054 | char *chptr; |
1055 | int elementsAlloced = 0; |
1056 | struct lineElement *element; |
1057 | int first = 1; |
1058 | |
1059 | lineFree(line); |
1060 | |
1061 | end = strchr(start, '\n'); |
1062 | *end = '\0'; |
1063 | *bufPtr = end + 1; |
1064 | |
1065 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; |
1066 | |
1067 | line->indent = strndup(start, chptr - start); |
1068 | start = chptr; |
1069 | |
1070 | while (start < end) { |
1071 | /* we know !isspace(*start) */ |
1072 | |
1073 | if (elementsAlloced == line->numElements) { |
1074 | elementsAlloced += 5; |
1075 | line->elements = realloc(line->elements, |
1076 | sizeof(*line->elements) * |
1077 | elementsAlloced); |
1078 | } |
1079 | |
1080 | element = line->elements + line->numElements; |
1081 | |
1082 | chptr = start; |
1083 | while (*chptr && !isspace(*chptr)) { |
1084 | if (first && *chptr == '=') |
1085 | break; |
1086 | chptr++; |
1087 | } |
1088 | if (line->type == LT_UNIDENTIFIED) |
1089 | line->type = getTypeByKeyword(start, cfi); |
1090 | element->item = strndup(start, chptr - start); |
1091 | start = chptr; |
1092 | |
1093 | /* lilo actually accepts the pathological case of |
1094 | * append = " foo " */ |
1095 | if (*start == '=') |
1096 | chptr = start + 1; |
1097 | else |
1098 | chptr = start; |
1099 | |
1100 | do { |
1101 | for (; *chptr && isspace(*chptr); chptr++) ; |
1102 | if (*chptr == '=') |
1103 | chptr = chptr + 1; |
1104 | } while (isspace(*chptr)); |
1105 | |
1106 | element->indent = strndup(start, chptr - start); |
1107 | start = chptr; |
1108 | |
1109 | line->numElements++; |
1110 | first = 0; |
1111 | } |
1112 | |
1113 | if (!line->numElements) |
1114 | line->type = LT_WHITESPACE; |
1115 | else { |
1116 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
1117 | if (line->type == LT_UNKNOWN) { |
1118 | /* zipl does [title] instead of something reasonable |
1119 | * like all the other boot loaders. kind of ugly */ |
1120 | if (cfi->titleBracketed && isBracketedTitle(line)) { |
1121 | line->type = LT_TITLE; |
1122 | } |
1123 | |
1124 | /* this is awkward, but we need to be able to handle |
1125 | * keywords that begin with a # (specifically for |
1126 | * #boot in grub.conf), but still make comments lines |
1127 | * with no elements (everything stored in the indent |
1128 | */ |
1129 | if (*line->elements[0].item == '#') { |
1130 | char *fullLine; |
1131 | int len; |
1132 | |
1133 | len = strlen(line->indent); |
1134 | for (int i = 0; i < line->numElements; i++) |
1135 | len += strlen(line->elements[i].item) + |
1136 | strlen(line->elements[i].indent); |
1137 | |
1138 | fullLine = malloc(len + 1); |
1139 | strcpy(fullLine, line->indent); |
1140 | free(line->indent); |
1141 | line->indent = fullLine; |
1142 | |
1143 | for (int i = 0; i < line->numElements; i++) { |
1144 | strcat(fullLine, |
1145 | line->elements[i].item); |
1146 | strcat(fullLine, |
1147 | line->elements[i].indent); |
1148 | free(line->elements[i].item); |
1149 | free(line->elements[i].indent); |
1150 | } |
1151 | |
1152 | line->type = LT_WHITESPACE; |
1153 | line->numElements = 0; |
1154 | } |
1155 | } else if (line->type == LT_INITRD) { |
1156 | struct keywordTypes *kw; |
1157 | |
1158 | kw = getKeywordByType(line->type, cfi); |
1159 | |
1160 | /* space isn't the only separator, we need to split |
1161 | * elements up more |
1162 | */ |
1163 | if (!isspace(kw->separatorChar)) { |
1164 | char indent[2] = ""; |
1165 | indent[0] = kw->separatorChar; |
1166 | for (int i = 1; i < line->numElements; i++) { |
1167 | char *p; |
1168 | int numNewElements; |
1169 | |
1170 | numNewElements = 0; |
1171 | p = line->elements[i].item; |
1172 | while (*p != '\0') { |
1173 | if (*p == kw->separatorChar) |
1174 | numNewElements++; |
1175 | p++; |
1176 | } |
1177 | if (line->numElements + |
1178 | numNewElements >= elementsAlloced) { |
1179 | elementsAlloced += |
1180 | numNewElements + 5; |
1181 | line->elements = |
1182 | realloc(line->elements, |
1183 | sizeof(*line-> |
1184 | elements) * |
1185 | elementsAlloced); |
1186 | } |
1187 | |
1188 | for (int j = line->numElements; j > i; |
1189 | j--) { |
1190 | line->elements[j + |
1191 | numNewElements] = |
1192 | line->elements[j]; |
1193 | } |
1194 | line->numElements += numNewElements; |
1195 | |
1196 | p = line->elements[i].item; |
1197 | while (*p != '\0') { |
1198 | |
1199 | while (*p != kw->separatorChar |
1200 | && *p != '\0') |
1201 | p++; |
1202 | if (*p == '\0') { |
1203 | break; |
1204 | } |
1205 | |
1206 | line->elements[i + 1].indent = |
1207 | line->elements[i].indent; |
1208 | line->elements[i].indent = |
1209 | strdup(indent); |
1210 | *p++ = '\0'; |
1211 | i++; |
1212 | line->elements[i].item = |
1213 | strdup(p); |
1214 | } |
1215 | } |
1216 | } |
1217 | } else if (line->type == LT_SET_VARIABLE) { |
1218 | /* and if it's a "set blah=" we need to split it |
1219 | * yet a third way to avoid rhbz# XXX FIXME :/ |
1220 | */ |
1221 | char *eq; |
1222 | int l; |
1223 | int numElements = line->numElements; |
1224 | struct lineElement *newElements; |
1225 | eq = strchr(line->elements[1].item, '='); |
1226 | if (!eq) |
1227 | return 0; |
1228 | l = eq - line->elements[1].item; |
1229 | if (eq[1] != 0) |
1230 | numElements++; |
1231 | newElements = calloc(numElements,sizeof (*newElements)); |
1232 | memcpy(&newElements[0], &line->elements[0], |
1233 | sizeof (newElements[0])); |
1234 | newElements[1].item = |
1235 | strndup(line->elements[1].item, l); |
1236 | newElements[1].indent = "="; |
1237 | *(eq++) = '\0'; |
1238 | newElements[2].item = strdup(eq); |
1239 | free(line->elements[1].item); |
1240 | if (line->elements[1].indent) |
1241 | newElements[2].indent = line->elements[1].indent; |
1242 | for (int i = 2; i < line->numElements; i++) { |
1243 | newElements[i+1].item = line->elements[i].item; |
1244 | newElements[i+1].indent = |
1245 | line->elements[i].indent; |
1246 | } |
1247 | free(line->elements); |
1248 | line->elements = newElements; |
1249 | line->numElements = numElements; |
1250 | } |
1251 | } |
1252 | |
1253 | return 0; |
1254 | } |
1255 | |
1256 | static int isnumber(const char *s) |
1257 | { |
1258 | int i; |
1259 | for (i = 0; s[i] != '\0'; i++) |
1260 | if (s[i] < '0' || s[i] > '9') |
1261 | return 0; |
1262 | return i; |
1263 | } |
1264 | |
1265 | static struct grubConfig *readConfig(const char *inName, |
1266 | struct configFileInfo *cfi) |
1267 | { |
1268 | int in; |
1269 | char *incoming = NULL, *head; |
1270 | int rc; |
1271 | int sawEntry = 0; |
1272 | int movedLine = 0; |
1273 | struct grubConfig *cfg; |
1274 | struct singleLine *last = NULL, *line, *defaultLine = NULL; |
1275 | char *end; |
1276 | struct singleEntry *entry = NULL; |
1277 | int len; |
1278 | char *buf; |
1279 | |
1280 | if (inName == NULL) { |
1281 | printf("Could not find bootloader configuration\n"); |
1282 | exit(1); |
1283 | } else if (!strcmp(inName, "-")) { |
1284 | in = 0; |
1285 | } else { |
1286 | if ((in = open(inName, O_RDONLY)) < 0) { |
1287 | fprintf(stderr, _("error opening %s for read: %s\n"), |
1288 | inName, strerror(errno)); |
1289 | return NULL; |
1290 | } |
1291 | } |
1292 | |
1293 | rc = readFile(in, &incoming); |
1294 | close(in); |
1295 | if (rc) |
1296 | return NULL; |
1297 | |
1298 | head = incoming; |
1299 | cfg = malloc(sizeof(*cfg)); |
1300 | cfg->primaryIndent = strdup(""); |
1301 | cfg->secondaryIndent = strdup("\t"); |
1302 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; |
1303 | cfg->cfi = cfi; |
1304 | cfg->theLines = NULL; |
1305 | cfg->entries = NULL; |
1306 | cfg->fallbackImage = 0; |
1307 | cfg->isModified = 0; |
1308 | |
1309 | /* copy everything we have */ |
1310 | while (*head) { |
1311 | line = malloc(sizeof(*line)); |
1312 | lineInit(line); |
1313 | |
1314 | if (getNextLine(&head, line, cfi)) { |
1315 | free(line); |
1316 | /* XXX memory leak of everything in cfg */ |
1317 | return NULL; |
1318 | } |
1319 | |
1320 | if (!sawEntry && line->numElements) { |
1321 | free(cfg->primaryIndent); |
1322 | cfg->primaryIndent = strdup(line->indent); |
1323 | } else if (line->numElements) { |
1324 | free(cfg->secondaryIndent); |
1325 | cfg->secondaryIndent = strdup(line->indent); |
1326 | } |
1327 | |
1328 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
1329 | sawEntry = 1; |
1330 | if (!entry) { |
1331 | cfg->entries = malloc(sizeof(*entry)); |
1332 | entry = cfg->entries; |
1333 | } else { |
1334 | entry->next = malloc(sizeof(*entry)); |
1335 | entry = entry->next; |
1336 | } |
1337 | |
1338 | entry->skip = 0; |
1339 | entry->multiboot = 0; |
1340 | entry->lines = NULL; |
1341 | entry->next = NULL; |
1342 | } |
1343 | |
1344 | if (line->type == LT_SET_VARIABLE) { |
1345 | dbgPrintf("found 'set' command (%d elements): ", |
1346 | line->numElements); |
1347 | dbgPrintf("%s", line->indent); |
1348 | for (int i = 0; i < line->numElements; i++) |
1349 | dbgPrintf("\"%s\"%s", line->elements[i].item, |
1350 | line->elements[i].indent); |
1351 | dbgPrintf("\n"); |
1352 | struct keywordTypes *kwType = |
1353 | getKeywordByType(LT_DEFAULT, cfi); |
1354 | if (kwType && line->numElements == 3 |
1355 | && !strcmp(line->elements[1].item, kwType->key) |
1356 | && !is_special_grub2_variable( |
1357 | line->elements[2].item)) { |
1358 | dbgPrintf("Line sets default config\n"); |
1359 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1360 | defaultLine = line; |
1361 | } |
1362 | } else if (iskernel(line->type)) { |
1363 | /* if by some freak chance this is multiboot and the |
1364 | * "module" lines came earlier in the template, make |
1365 | * sure to use LT_HYPER instead of LT_KERNEL now |
1366 | */ |
1367 | if (entry && entry->multiboot) |
1368 | line->type = LT_HYPER; |
1369 | |
1370 | } else if (line->type == LT_MBMODULE) { |
1371 | /* go back and fix the LT_KERNEL line to indicate |
1372 | * LT_HYPER instead, now that we know this is a |
1373 | * multiboot entry. This only applies to grub, but |
1374 | * that's the only place we should find LT_MBMODULE |
1375 | * lines anyway. |
1376 | */ |
1377 | for (struct singleLine * l = entry->lines; l; |
1378 | l = l->next) { |
1379 | if (l->type == LT_HYPER) |
1380 | break; |
1381 | else if (iskernel(l->type)) { |
1382 | l->type = LT_HYPER; |
1383 | break; |
1384 | } |
1385 | } |
1386 | entry->multiboot = 1; |
1387 | |
1388 | } else if (line->type == LT_HYPER) { |
1389 | entry->multiboot = 1; |
1390 | |
1391 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1392 | cfg->fallbackImage = |
1393 | strtol(line->elements[1].item, &end, 10); |
1394 | if (*end) |
1395 | cfg->fallbackImage = -1; |
1396 | |
1397 | } else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted) |
1398 | || (line->type == LT_TITLE |
1399 | && line->numElements > 1)) { |
1400 | /* make the title/default a single argument (undoing |
1401 | * our parsing) */ |
1402 | len = 0; |
1403 | for (int i = 1; i < line->numElements; i++) { |
1404 | len += strlen(line->elements[i].item); |
1405 | len += strlen(line->elements[i].indent); |
1406 | } |
1407 | buf = malloc(len + 1); |
1408 | *buf = '\0'; |
1409 | |
1410 | for (int i = 1; i < line->numElements; i++) { |
1411 | strcat(buf, line->elements[i].item); |
1412 | free(line->elements[i].item); |
1413 | |
1414 | if ((i + 1) != line->numElements) { |
1415 | strcat(buf, line->elements[i].indent); |
1416 | free(line->elements[i].indent); |
1417 | } |
1418 | } |
1419 | |
1420 | line->elements[1].indent = |
1421 | line->elements[line->numElements - 1].indent; |
1422 | line->elements[1].item = buf; |
1423 | line->numElements = 2; |
1424 | } else if (line->type == LT_MENUENTRY && line->numElements > 3) { |
1425 | /* let --remove-kernel="TITLE=what" work */ |
1426 | len = 0; |
1427 | char *extras; |
1428 | char *title; |
1429 | /* initially unseen value */ |
1430 | char quote_char = '\0'; |
1431 | |
1432 | for (int i = 1; i < line->numElements; i++) { |
1433 | len += strlen(line->elements[i].item); |
1434 | len += strlen(line->elements[i].indent); |
1435 | } |
1436 | buf = malloc(len + 1); |
1437 | *buf = '\0'; |
1438 | |
1439 | /* allocate mem for extra flags. */ |
1440 | extras = malloc(len + 1); |
1441 | *extras = '\0'; |
1442 | |
1443 | /* get title. */ |
1444 | for (int i = 0; i < line->numElements; i++) { |
1445 | if (!strcmp |
1446 | (line->elements[i].item, "menuentry")) |
1447 | continue; |
1448 | if (isquote(*line->elements[i].item) |
1449 | && quote_char == '\0') { |
1450 | /* ensure we properly pair off quotes */ |
1451 | quote_char = *line->elements[i].item; |
1452 | title = line->elements[i].item + 1; |
1453 | } else { |
1454 | title = line->elements[i].item; |
1455 | } |
1456 | |
1457 | len = strlen(title); |
1458 | if (title[len - 1] == quote_char) { |
1459 | strncat(buf, title, len - 1); |
1460 | break; |
1461 | } else { |
1462 | strcat(buf, title); |
1463 | strcat(buf, line->elements[i].indent); |
1464 | } |
1465 | } |
1466 | |
1467 | /* get extras */ |
1468 | int count = 0; |
1469 | quote_char = '\0'; |
1470 | for (int i = 0; i < line->numElements; i++) { |
1471 | if (count >= 2) { |
1472 | strcat(extras, line->elements[i].item); |
1473 | strcat(extras, |
1474 | line->elements[i].indent); |
1475 | } |
1476 | |
1477 | if (!strcmp |
1478 | (line->elements[i].item, "menuentry")) |
1479 | continue; |
1480 | |
1481 | /* count ' or ", there should be two in menuentry line. */ |
1482 | if (isquote(*line->elements[i].item) |
1483 | && quote_char == '\0') { |
1484 | /* ensure we properly pair off quotes */ |
1485 | quote_char = *line->elements[i].item; |
1486 | count++; |
1487 | } |
1488 | |
1489 | len = strlen(line->elements[i].item); |
1490 | |
1491 | if (line->elements[i].item[len - 1] == |
1492 | quote_char) |
1493 | count++; |
1494 | |
1495 | /* ok, we get the final ' or ", others are extras. */ |
1496 | } |
1497 | line->elements[1].indent = |
1498 | line->elements[line->numElements - 2].indent; |
1499 | line->elements[1].item = buf; |
1500 | line->elements[2].indent = |
1501 | line->elements[line->numElements - 2].indent; |
1502 | line->elements[2].item = extras; |
1503 | line->numElements = 3; |
1504 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
1505 | /* Strip off any " which may be present; they'll be |
1506 | * put back on write. This is one of the few (the |
1507 | * only?) places that grubby canonicalizes the output |
1508 | */ |
1509 | if (line->numElements >= 2) { |
1510 | int last, len; |
1511 | |
1512 | if (isquote(*line->elements[1].item)) |
1513 | memmove(line->elements[1].item, |
1514 | line->elements[1].item + 1, |
1515 | strlen(line->elements[1].item + |
1516 | 1) + 1); |
1517 | |
1518 | last = line->numElements - 1; |
1519 | len = strlen(line->elements[last].item) - 1; |
1520 | if (isquote(line->elements[last].item[len])) |
1521 | line->elements[last].item[len] = '\0'; |
1522 | } |
1523 | } |
1524 | |
1525 | if (line->type == LT_DEFAULT && line->numElements == 2) { |
1526 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1527 | defaultLine = line; |
1528 | } |
1529 | |
1530 | /* If we find a generic config option which should live at the |
1531 | top of the file, move it there. Old versions of grubby were |
1532 | probably responsible for putting new images in the wrong |
1533 | place in front of it anyway. */ |
1534 | if (sawEntry && line->type == LT_GENERIC) { |
1535 | struct singleLine **l = &cfg->theLines; |
1536 | struct singleLine **last_nonws = &cfg->theLines; |
1537 | while (*l) { |
1538 | if ((*l)->type != LT_WHITESPACE) |
1539 | last_nonws = &((*l)->next); |
1540 | l = &((*l)->next); |
1541 | } |
1542 | line->next = *last_nonws; |
1543 | *last_nonws = line; |
1544 | movedLine = 1; |
1545 | continue; /* without setting 'last' */ |
1546 | } |
1547 | |
1548 | /* If a second line of whitespace happens after a generic |
1549 | * option which was moved, drop it. */ |
1550 | if (movedLine && line->type == LT_WHITESPACE |
1551 | && last->type == LT_WHITESPACE) { |
1552 | lineFree(line); |
1553 | free(line); |
1554 | movedLine = 0; |
1555 | continue; |
1556 | } |
1557 | movedLine = 0; |
1558 | |
1559 | if (sawEntry) { |
1560 | if (!entry->lines) |
1561 | entry->lines = line; |
1562 | else |
1563 | last->next = line; |
1564 | dbgPrintf("readConfig added %s to %p\n", |
1565 | getKeyByType(line->type, cfi), entry); |
1566 | |
1567 | /* we could have seen this outside of an entry... if |
1568 | * so, we ignore it like any other line we don't grok |
1569 | */ |
1570 | if (line->type == LT_ENTRY_END && sawEntry) |
1571 | sawEntry = 0; |
1572 | } else { |
1573 | if (!cfg->theLines) |
1574 | cfg->theLines = line; |
1575 | else |
1576 | last->next = line; |
1577 | dbgPrintf("readConfig added %s to cfg\n", |
1578 | getKeyByType(line->type, cfi)); |
1579 | } |
1580 | |
1581 | last = line; |
1582 | } |
1583 | |
1584 | free(incoming); |
1585 | |
1586 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1587 | if (defaultLine) { |
1588 | if (defaultLine->numElements > 2 && |
1589 | cfi->defaultSupportSaved && |
1590 | !strncmp(defaultLine->elements[2].item, |
1591 | "\"${saved_entry}\"", 16)) { |
1592 | cfg->cfi->defaultIsSaved = 1; |
1593 | cfg->defaultImage = DEFAULT_SAVED_GRUB2; |
1594 | if (cfg->cfi->getEnv) { |
1595 | char *defTitle = |
1596 | cfi->getEnv(cfg->cfi, "saved_entry"); |
1597 | if (defTitle) { |
1598 | int index = 0; |
1599 | if (isnumber(defTitle)) { |
1600 | index = atoi(defTitle); |
1601 | entry = |
1602 | findEntryByIndex(cfg, |
1603 | index); |
1604 | } else { |
1605 | entry = |
1606 | findEntryByTitle(cfg, |
1607 | defTitle, |
1608 | &index); |
1609 | } |
1610 | if (entry) |
1611 | cfg->defaultImage = index; |
1612 | } |
1613 | } |
1614 | } else if (cfi->defaultIsVariable) { |
1615 | if (defaultLine->numElements == 2) { |
1616 | char *value = defaultLine->elements[1].item + 8; |
1617 | while (*value && (*value == '"' || |
1618 | *value == '\'' || |
1619 | *value == ' ' || |
1620 | *value == '\t')) |
1621 | value++; |
1622 | cfg->defaultImage = strtol(value, &end, 10); |
1623 | while (*end && (*end == '"' || *end == '\'' || |
1624 | *end == ' ' || *end == '\t')) |
1625 | end++; |
1626 | if (*end) |
1627 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1628 | } else if (defaultLine->numElements == 3) { |
1629 | char *value = defaultLine->elements[2].item; |
1630 | while (*value && (*value == '"' || |
1631 | *value == '\'' || |
1632 | *value == ' ' || |
1633 | *value == '\t')) |
1634 | value++; |
1635 | cfg->defaultImage = strtol(value, &end, 10); |
1636 | while (*end && (*end == '"' || *end == '\'' || |
1637 | *end == ' ' || *end == '\t')) |
1638 | end++; |
1639 | if (*end) |
1640 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1641 | } |
1642 | } else if (cfi->defaultSupportSaved && |
1643 | !strncmp(defaultLine->elements[1].item, "saved", |
1644 | 5)) { |
1645 | cfg->defaultImage = DEFAULT_SAVED; |
1646 | } else if (cfi->defaultIsIndex) { |
1647 | cfg->defaultImage = |
1648 | strtol(defaultLine->elements[1].item, &end, 10); |
1649 | if (*end) |
1650 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1651 | } else if (defaultLine->numElements >= 2) { |
1652 | int i = 0; |
1653 | while ((entry = findEntryByIndex(cfg, i))) { |
1654 | for (line = entry->lines; line; |
1655 | line = line->next) |
1656 | if (line->type == LT_TITLE) |
1657 | break; |
1658 | |
1659 | if (!cfi->titleBracketed) { |
1660 | if (line && (line->numElements >= 2) && |
1661 | !strcmp(defaultLine->elements[1]. |
1662 | item, |
1663 | line->elements[1].item)) |
1664 | break; |
1665 | } else if (line) { |
1666 | if (!strcmp |
1667 | (defaultLine->elements[1].item, |
1668 | extractTitle(cfg, line))) |
1669 | break; |
1670 | } |
1671 | i++; |
1672 | entry = NULL; |
1673 | } |
1674 | |
1675 | if (entry) { |
1676 | cfg->defaultImage = i; |
1677 | } else { |
1678 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1679 | } |
1680 | } |
1681 | } else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) { |
1682 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); |
1683 | if (defTitle) { |
1684 | int index = 0; |
1685 | if (isnumber(defTitle)) { |
1686 | index = atoi(defTitle); |
1687 | entry = findEntryByIndex(cfg, index); |
1688 | } else { |
1689 | entry = findEntryByTitle(cfg, defTitle, &index); |
1690 | } |
1691 | if (entry) |
1692 | cfg->defaultImage = index; |
1693 | } |
1694 | } else { |
1695 | cfg->defaultImage = FIRST_ENTRY_INDEX; |
1696 | } |
1697 | |
1698 | return cfg; |
1699 | } |
1700 | |
1701 | static void writeDefault(FILE * out, char *indent, |
1702 | char *separator, struct grubConfig *cfg) |
1703 | { |
1704 | struct singleEntry *entry; |
1705 | struct singleLine *line; |
1706 | int i; |
1707 | |
1708 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) |
1709 | return; |
1710 | |
1711 | if (cfg->defaultImage == DEFAULT_SAVED) |
1712 | fprintf(out, "%sdefault%ssaved\n", indent, separator); |
1713 | else if (cfg->cfi->defaultIsSaved) { |
1714 | fprintf(out, "%sset default=\"${saved_entry}\"\n", indent); |
1715 | if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) { |
1716 | char *title; |
1717 | int trueIndex, currentIndex; |
1718 | |
1719 | trueIndex = 0; |
1720 | currentIndex = 0; |
1721 | |
1722 | while ((entry = findEntryByIndex(cfg, currentIndex))) { |
1723 | if (!entry->skip) { |
1724 | if (trueIndex == cfg->defaultImage) { |
1725 | break; |
1726 | } |
1727 | trueIndex++; |
1728 | } |
1729 | currentIndex++; |
1730 | } |
1731 | line = getLineByType(LT_MENUENTRY, entry->lines); |
1732 | if (!line) |
1733 | line = getLineByType(LT_TITLE, entry->lines); |
1734 | if (line) { |
1735 | title = extractTitle(cfg, line); |
1736 | if (title) |
1737 | cfg->cfi->setEnv(cfg->cfi, |
1738 | "saved_entry", title); |
1739 | } |
1740 | } |
1741 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
1742 | if (cfg->cfi->defaultIsIndex) { |
1743 | if (cfg->cfi->defaultIsVariable) { |
1744 | fprintf(out, "%sset default=\"%d\"\n", indent, |
1745 | cfg->defaultImage); |
1746 | } else { |
1747 | fprintf(out, "%sdefault%s%d\n", indent, |
1748 | separator, cfg->defaultImage); |
1749 | } |
1750 | } else { |
1751 | int image = cfg->defaultImage; |
1752 | |
1753 | entry = cfg->entries; |
1754 | while (entry && entry->skip) |
1755 | entry = entry->next; |
1756 | |
1757 | i = 0; |
1758 | while (entry && i < image) { |
1759 | entry = entry->next; |
1760 | |
1761 | while (entry && entry->skip) |
1762 | entry = entry->next; |
1763 | i++; |
1764 | } |
1765 | |
1766 | if (!entry) |
1767 | return; |
1768 | |
1769 | line = getLineByType(LT_TITLE, entry->lines); |
1770 | |
1771 | if (line && line->numElements >= 2) |
1772 | fprintf(out, "%sdefault%s%s\n", indent, |
1773 | separator, line->elements[1].item); |
1774 | else if (line && (line->numElements == 1) |
1775 | && cfg->cfi->titleBracketed) { |
1776 | char *title = extractTitle(cfg, line); |
1777 | if (title) { |
1778 | fprintf(out, "%sdefault%s%s\n", indent, |
1779 | separator, title); |
1780 | free(title); |
1781 | } |
1782 | } |
1783 | } |
1784 | } |
1785 | } |
1786 | |
1787 | static int writeConfig(struct grubConfig *cfg, char *outName, |
1788 | const char *prefix) |
1789 | { |
1790 | FILE *out; |
1791 | struct singleLine *line; |
1792 | struct singleEntry *entry; |
1793 | char *tmpOutName; |
1794 | int needs = MAIN_DEFAULT; |
1795 | struct stat sb; |
1796 | int i; |
1797 | int rc = 0; |
1798 | |
1799 | if (!strcmp(outName, "-")) { |
1800 | out = stdout; |
1801 | tmpOutName = NULL; |
1802 | } else { |
1803 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { |
1804 | char *buf; |
1805 | int len = 256; |
1806 | int rc; |
1807 | |
1808 | /* most likely the symlink is relative, so change our |
1809 | directory to the dir of the symlink */ |
1810 | char *dir = strdupa(outName); |
1811 | rc = chdir(dirname(dir)); |
1812 | do { |
1813 | buf = alloca(len + 1); |
1814 | rc = readlink(basename(outName), buf, len); |
1815 | if (rc == len) |
1816 | len += 256; |
1817 | } while (rc == len); |
1818 | |
1819 | if (rc < 0) { |
1820 | fprintf(stderr, |
1821 | _ |
1822 | ("grubby: error readlink link %s: %s\n"), |
1823 | outName, strerror(errno)); |
1824 | return 1; |
1825 | } |
1826 | |
1827 | outName = buf; |
1828 | outName[rc] = '\0'; |
1829 | } |
1830 | |
1831 | tmpOutName = alloca(strlen(outName) + 2); |
1832 | sprintf(tmpOutName, "%s-", outName); |
1833 | out = fopen(tmpOutName, "w"); |
1834 | if (!out) { |
1835 | fprintf(stderr, _("grubby: error creating %s: %s\n"), |
1836 | tmpOutName, strerror(errno)); |
1837 | return 1; |
1838 | } |
1839 | |
1840 | if (!stat(outName, &sb)) { |
1841 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { |
1842 | fprintf(stderr, |
1843 | _ |
1844 | ("grubby: error setting perms on %s: %s\n"), |
1845 | tmpOutName, strerror(errno)); |
1846 | fclose(out); |
1847 | unlink(tmpOutName); |
1848 | return 1; |
1849 | } |
1850 | } |
1851 | } |
1852 | |
1853 | line = cfg->theLines; |
1854 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1855 | while (line) { |
1856 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1857 | line->numElements == 3 && |
1858 | !strcmp(line->elements[1].item, defaultKw->key) && |
1859 | !is_special_grub2_variable(line->elements[2].item)) { |
1860 | writeDefault(out, line->indent, |
1861 | line->elements[0].indent, cfg); |
1862 | needs &= ~MAIN_DEFAULT; |
1863 | } else if (line->type == LT_DEFAULT) { |
1864 | writeDefault(out, line->indent, |
1865 | line->elements[0].indent, cfg); |
1866 | needs &= ~MAIN_DEFAULT; |
1867 | } else if (line->type == LT_FALLBACK) { |
1868 | if (cfg->fallbackImage > -1) |
1869 | fprintf(out, "%s%s%s%d\n", line->indent, |
1870 | line->elements[0].item, |
1871 | line->elements[0].indent, |
1872 | cfg->fallbackImage); |
1873 | } else { |
1874 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1875 | fprintf(stderr, |
1876 | _("grubby: error writing %s: %s\n"), |
1877 | tmpOutName, strerror(errno)); |
1878 | fclose(out); |
1879 | unlink(tmpOutName); |
1880 | return 1; |
1881 | } |
1882 | } |
1883 | |
1884 | line = line->next; |
1885 | } |
1886 | |
1887 | if (needs & MAIN_DEFAULT) { |
1888 | writeDefault(out, cfg->primaryIndent, "=", cfg); |
1889 | needs &= ~MAIN_DEFAULT; |
1890 | } |
1891 | |
1892 | i = 0; |
1893 | while ((entry = findEntryByIndex(cfg, i++))) { |
1894 | if (entry->skip) |
1895 | continue; |
1896 | |
1897 | line = entry->lines; |
1898 | while (line) { |
1899 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1900 | fprintf(stderr, |
1901 | _("grubby: error writing %s: %s\n"), |
1902 | tmpOutName, strerror(errno)); |
1903 | fclose(out); |
1904 | unlink(tmpOutName); |
1905 | return 1; |
1906 | } |
1907 | line = line->next; |
1908 | } |
1909 | } |
1910 | |
1911 | if (tmpOutName) { |
1912 | /* write userspace buffers */ |
1913 | if (fflush(out)) |
1914 | rc = 1; |
1915 | |
1916 | /* purge the write-back cache with fsync() */ |
1917 | if (fsync(fileno(out))) |
1918 | rc = 1; |
1919 | |
1920 | if (fclose(out)) |
1921 | rc = 1; |
1922 | |
1923 | if (rc == 0 && rename(tmpOutName, outName)) { |
1924 | unlink(tmpOutName); |
1925 | rc = 1; |
1926 | } |
1927 | |
1928 | /* fsync() the destination directory after rename */ |
1929 | if (rc == 0) { |
1930 | int dirfd; |
1931 | |
1932 | dirfd = open(dirname(strdupa(outName)), O_RDONLY); |
1933 | if (dirfd < 0) |
1934 | rc = 1; |
1935 | else if (fsync(dirfd)) |
1936 | rc = 1; |
1937 | |
1938 | if (dirfd >= 0) |
1939 | close(dirfd); |
1940 | } |
1941 | |
1942 | if (rc == 1) |
1943 | fprintf(stderr, |
1944 | _("grubby: error flushing data: %m\n")); |
1945 | } |
1946 | |
1947 | return rc; |
1948 | } |
1949 | |
1950 | static int numEntries(struct grubConfig *cfg) |
1951 | { |
1952 | int i = 0; |
1953 | struct singleEntry *entry; |
1954 | |
1955 | entry = cfg->entries; |
1956 | while (entry) { |
1957 | if (!entry->skip) |
1958 | i++; |
1959 | entry = entry->next; |
1960 | } |
1961 | return i; |
1962 | } |
1963 | |
1964 | static char *findDiskForRoot() |
1965 | { |
1966 | int fd; |
1967 | char buf[65536]; |
1968 | char *devname; |
1969 | char *chptr; |
1970 | int rc; |
1971 | |
1972 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { |
1973 | fprintf(stderr, "grubby: failed to open %s: %s\n", |
1974 | _PATH_MOUNTED, strerror(errno)); |
1975 | return NULL; |
1976 | } |
1977 | |
1978 | rc = read(fd, buf, sizeof(buf) - 1); |
1979 | if (rc <= 0) { |
1980 | fprintf(stderr, "grubby: failed to read %s: %s\n", |
1981 | _PATH_MOUNTED, strerror(errno)); |
1982 | close(fd); |
1983 | return NULL; |
1984 | } |
1985 | close(fd); |
1986 | buf[rc] = '\0'; |
1987 | chptr = buf; |
1988 | |
1989 | char *foundanswer = NULL; |
1990 | |
1991 | while (chptr && chptr != buf + rc) { |
1992 | devname = chptr; |
1993 | |
1994 | /* |
1995 | * The first column of a mtab entry is the device, but if the |
1996 | * entry is a special device it won't start with /, so move |
1997 | * on to the next line. |
1998 | */ |
1999 | if (*devname != '/') { |
2000 | chptr = strchr(chptr, '\n'); |
2001 | if (chptr) |
2002 | chptr++; |
2003 | continue; |
2004 | } |
2005 | |
2006 | /* Seek to the next space */ |
2007 | chptr = strchr(chptr, ' '); |
2008 | if (!chptr) { |
2009 | fprintf(stderr, "grubby: error parsing %s: %s\n", |
2010 | _PATH_MOUNTED, strerror(errno)); |
2011 | return NULL; |
2012 | } |
2013 | |
2014 | /* |
2015 | * The second column of a mtab entry is the mount point, we |
2016 | * are looking for '/' obviously. |
2017 | */ |
2018 | if (*(++chptr) == '/' && *(++chptr) == ' ') { |
2019 | /* remember the last / entry in mtab */ |
2020 | foundanswer = devname; |
2021 | } |
2022 | |
2023 | /* Next line */ |
2024 | chptr = strchr(chptr, '\n'); |
2025 | if (chptr) |
2026 | chptr++; |
2027 | } |
2028 | |
2029 | /* Return the last / entry found */ |
2030 | if (foundanswer) { |
2031 | chptr = strchr(foundanswer, ' '); |
2032 | *chptr = '\0'; |
2033 | return strdup(foundanswer); |
2034 | } |
2035 | |
2036 | return NULL; |
2037 | } |
2038 | |
2039 | void printEntry(struct singleEntry *entry, FILE * f) |
2040 | { |
2041 | int i; |
2042 | struct singleLine *line; |
2043 | |
2044 | for (line = entry->lines; line; line = line->next) { |
2045 | log_message(f, "DBG: %s", line->indent); |
2046 | for (i = 0; i < line->numElements; i++) { |
2047 | /* Need to handle this, because we strip the quotes from |
2048 | * menuentry when read it. */ |
2049 | if (line->type == LT_MENUENTRY && i == 1) { |
2050 | if (!isquote(*line->elements[i].item)) |
2051 | log_message(f, "\'%s\'", |
2052 | line->elements[i].item); |
2053 | else |
2054 | log_message(f, "%s", |
2055 | line->elements[i].item); |
2056 | log_message(f, "%s", line->elements[i].indent); |
2057 | |
2058 | continue; |
2059 | } |
2060 | |
2061 | log_message(f, "%s%s", |
2062 | line->elements[i].item, |
2063 | line->elements[i].indent); |
2064 | } |
2065 | log_message(f, "\n"); |
2066 | } |
2067 | } |
2068 | |
2069 | void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt, |
2070 | ...) |
2071 | { |
2072 | static int once; |
2073 | va_list argp, argq; |
2074 | |
2075 | va_start(argp, fmt); |
2076 | |
2077 | va_copy(argq, argp); |
2078 | if (!once) { |
2079 | log_time(NULL); |
2080 | log_message(NULL, "command line: %s\n", saved_command_line); |
2081 | } |
2082 | log_message(NULL, "DBG: Image entry %s: ", |
2083 | okay ? "succeeded" : "failed"); |
2084 | log_vmessage(NULL, fmt, argq); |
2085 | |
2086 | printEntry(entry, NULL); |
2087 | va_end(argq); |
2088 | |
2089 | if (!debug) { |
2090 | once = 1; |
2091 | va_end(argp); |
2092 | return; |
2093 | } |
2094 | |
2095 | if (okay) { |
2096 | va_end(argp); |
2097 | return; |
2098 | } |
2099 | |
2100 | if (!once) |
2101 | log_message(stderr, "DBG: command line: %s\n", |
2102 | saved_command_line); |
2103 | once = 1; |
2104 | fprintf(stderr, "DBG: Image entry failed: "); |
2105 | vfprintf(stderr, fmt, argp); |
2106 | printEntry(entry, stderr); |
2107 | va_end(argp); |
2108 | } |
2109 | |
2110 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
2111 | |
2112 | static int endswith(const char *s, char c) |
2113 | { |
2114 | int slen; |
2115 | |
2116 | if (!s || !s[0]) |
2117 | return 0; |
2118 | slen = strlen(s) - 1; |
2119 | |
2120 | return s[slen] == c; |
2121 | } |
2122 | |
2123 | typedef struct { |
2124 | const char *start; |
2125 | size_t chars; |
2126 | } field; |
2127 | |
2128 | static int iscomma(int c) |
2129 | { |
2130 | return c == ','; |
2131 | } |
2132 | |
2133 | static int isequal(int c) |
2134 | { |
2135 | return c == '='; |
2136 | } |
2137 | |
2138 | static field findField(const field *in, typeof(isspace) *isdelim, field *out) |
2139 | { |
2140 | field nxt = {}; |
2141 | size_t off = 0; |
2142 | |
2143 | while (off < in->chars && isdelim(in->start[off])) |
2144 | off++; |
2145 | |
2146 | if (off == in->chars) |
2147 | return nxt; |
2148 | |
2149 | out->start = &in->start[off]; |
2150 | out->chars = 0; |
2151 | |
2152 | while (off + out->chars < in->chars && !isdelim(out->start[out->chars])) |
2153 | out->chars++; |
2154 | |
2155 | nxt.start = out->start + out->chars; |
2156 | nxt.chars = in->chars - off - out->chars; |
2157 | return nxt; |
2158 | } |
2159 | |
2160 | static int fieldEquals(const field *in, const char *str) |
2161 | { |
2162 | return in->chars == strlen(str) && |
2163 | strncmp(in->start, str, in->chars) == 0; |
2164 | } |
2165 | |
2166 | /* Parse /proc/mounts to determine the subvolume prefix. */ |
2167 | static size_t subvolPrefix(const char *str) |
2168 | { |
2169 | FILE *file = NULL; |
2170 | char *line = NULL; |
2171 | size_t prfx = 0; |
2172 | size_t size = 0; |
2173 | |
2174 | file = fopen(mounts, "r"); |
2175 | if (!file) |
2176 | return 0; |
2177 | |
2178 | for (ssize_t s; (s = getline(&line, &size, file)) >= 0; ) { |
2179 | field nxt = { line, s }; |
2180 | field dev = {}; |
2181 | field path = {}; |
2182 | field type = {}; |
2183 | field opts = {}; |
2184 | field opt = {}; |
2185 | |
2186 | nxt = findField(&nxt, isspace, &dev); |
2187 | if (!nxt.start) |
2188 | continue; |
2189 | |
2190 | nxt = findField(&nxt, isspace, &path); |
2191 | if (!nxt.start) |
2192 | continue; |
2193 | |
2194 | nxt = findField(&nxt, isspace, &type); |
2195 | if (!nxt.start) |
2196 | continue; |
2197 | |
2198 | nxt = findField(&nxt, isspace, &opts); |
2199 | if (!nxt.start) |
2200 | continue; |
2201 | |
2202 | if (!fieldEquals(&type, "btrfs")) |
2203 | continue; |
2204 | |
2205 | /* We have found a btrfs mount point. */ |
2206 | |
2207 | nxt = opts; |
2208 | while ((nxt = findField(&nxt, iscomma, &opt)).start) { |
2209 | field key = {}; |
2210 | field val = {}; |
2211 | |
2212 | opt = findField(&opt, isequal, &key); |
2213 | if (!opt.start) |
2214 | continue; |
2215 | |
2216 | opt = findField(&opt, isequal, &val); |
2217 | if (!opt.start) |
2218 | continue; |
2219 | |
2220 | if (!fieldEquals(&key, "subvol")) |
2221 | continue; |
2222 | |
2223 | /* We have found a btrfs subvolume mount point. */ |
2224 | |
2225 | if (strncmp(val.start, str, val.chars)) |
2226 | continue; |
2227 | |
2228 | if (val.start[val.chars - 1] != '/' && |
2229 | str[val.chars] != '/') |
2230 | continue; |
2231 | |
2232 | /* The subvolume mount point matches our input. */ |
2233 | |
2234 | if (prfx < val.chars) |
2235 | prfx = val.chars; |
2236 | } |
2237 | } |
2238 | |
2239 | dbgPrintf("%s(): str: '%s', prfx: '%s'\n", __FUNCTION__, str, prfx); |
2240 | |
2241 | fclose(file); |
2242 | free(line); |
2243 | return prfx; |
2244 | } |
2245 | |
2246 | int suitableImage(struct singleEntry *entry, const char *bootPrefix, |
2247 | int skipRemoved, int flags) |
2248 | { |
2249 | struct singleLine *line; |
2250 | char *fullName; |
2251 | int i; |
2252 | char *dev; |
2253 | size_t rs; |
2254 | char *rootdev; |
2255 | |
2256 | if (skipRemoved && entry->skip) { |
2257 | notSuitablePrintf(entry, 0, "marked to skip\n"); |
2258 | return 0; |
2259 | } |
2260 | |
2261 | line = |
2262 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2263 | entry->lines); |
2264 | if (!line) { |
2265 | notSuitablePrintf(entry, 0, "no line found\n"); |
2266 | return 0; |
2267 | } |
2268 | if (line->numElements < 2) { |
2269 | notSuitablePrintf(entry, 0, "line has only %d elements\n", |
2270 | line->numElements); |
2271 | return 0; |
2272 | } |
2273 | |
2274 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
2275 | notSuitablePrintf(entry, 1, "\n"); |
2276 | return 1; |
2277 | } |
2278 | |
2279 | fullName = alloca(strlen(bootPrefix) + |
2280 | strlen(line->elements[1].item) + 1); |
2281 | rs = getRootSpecifier(line->elements[1].item); |
2282 | int hasslash = endswith(bootPrefix, '/') || |
2283 | beginswith(line->elements[1].item + rs, '/'); |
2284 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", |
2285 | line->elements[1].item + rs); |
2286 | if (access(fullName, R_OK)) { |
2287 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); |
2288 | return 0; |
2289 | } |
2290 | for (i = 2; i < line->numElements; i++) |
2291 | if (!strncasecmp(line->elements[i].item, "root=", 5)) |
2292 | break; |
2293 | if (i < line->numElements) { |
2294 | dev = line->elements[i].item + 5; |
2295 | } else { |
2296 | /* look for a lilo style LT_ROOT line */ |
2297 | line = getLineByType(LT_ROOT, entry->lines); |
2298 | |
2299 | if (line && line->numElements >= 2) { |
2300 | dev = line->elements[1].item; |
2301 | } else { |
2302 | /* didn't succeed in finding a LT_ROOT, let's try |
2303 | * LT_KERNELARGS. grub+multiboot uses LT_MBMODULE |
2304 | * for the args, so check that too. |
2305 | */ |
2306 | line = |
2307 | getLineByType(LT_KERNELARGS | LT_MBMODULE, |
2308 | entry->lines); |
2309 | |
2310 | /* failed to find one */ |
2311 | if (!line) { |
2312 | notSuitablePrintf(entry, 0, "no line found\n"); |
2313 | return 0; |
2314 | } |
2315 | |
2316 | for (i = 1; i < line->numElements; i++) |
2317 | if (!strncasecmp |
2318 | (line->elements[i].item, "root=", 5)) |
2319 | break; |
2320 | if (i < line->numElements) |
2321 | dev = line->elements[i].item + 5; |
2322 | else { |
2323 | notSuitablePrintf(entry, 0, |
2324 | "no root= entry found\n"); |
2325 | /* it failed too... can't find root= */ |
2326 | return 0; |
2327 | } |
2328 | } |
2329 | } |
2330 | |
2331 | dev = getpathbyspec(dev); |
2332 | if (!getpathbyspec(dev)) { |
2333 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", |
2334 | dev); |
2335 | return 0; |
2336 | } else |
2337 | dev = getpathbyspec(dev); |
2338 | |
2339 | rootdev = findDiskForRoot(); |
2340 | if (!rootdev) { |
2341 | notSuitablePrintf(entry, 0, "can't find root device\n"); |
2342 | return 0; |
2343 | } |
2344 | |
2345 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
2346 | notSuitablePrintf(entry, 0, |
2347 | "uuid missing: rootdev %s, dev %s\n", |
2348 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2349 | free(rootdev); |
2350 | return 0; |
2351 | } |
2352 | |
2353 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
2354 | notSuitablePrintf(entry, 0, |
2355 | "uuid mismatch: rootdev %s, dev %s\n", |
2356 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2357 | free(rootdev); |
2358 | return 0; |
2359 | } |
2360 | |
2361 | free(rootdev); |
2362 | notSuitablePrintf(entry, 1, "\n"); |
2363 | |
2364 | return 1; |
2365 | } |
2366 | |
2367 | /* returns the first match on or after the one pointed to by index (if index |
2368 | is not NULL) which is not marked as skip */ |
2369 | struct singleEntry *findEntryByPath(struct grubConfig *config, |
2370 | const char *kernel, const char *prefix, |
2371 | int *index) |
2372 | { |
2373 | struct singleEntry *entry = NULL; |
2374 | struct singleLine *line; |
2375 | int i; |
2376 | char *chptr; |
2377 | enum lineType_e checkType = LT_KERNEL; |
2378 | |
2379 | if (isdigit(*kernel)) { |
2380 | int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); |
2381 | |
2382 | i = 0; |
2383 | indexVars[i] = strtol(kernel, &chptr, 10); |
2384 | while (*chptr == ',') { |
2385 | i++; |
2386 | kernel = chptr + 1; |
2387 | indexVars[i] = strtol(kernel, &chptr, 10); |
2388 | } |
2389 | |
2390 | if (*chptr) { |
2391 | /* can't parse it, bail */ |
2392 | return NULL; |
2393 | } |
2394 | |
2395 | indexVars[i + 1] = -1; |
2396 | |
2397 | i = 0; |
2398 | if (index) { |
2399 | while (i < *index) { |
2400 | i++; |
2401 | if (indexVars[i] == -1) |
2402 | return NULL; |
2403 | } |
2404 | } |
2405 | |
2406 | entry = findEntryByIndex(config, indexVars[i]); |
2407 | if (!entry) |
2408 | return NULL; |
2409 | |
2410 | line = |
2411 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
2412 | LT_KERNEL_16, entry->lines); |
2413 | if (!line) |
2414 | return NULL; |
2415 | |
2416 | if (index) |
2417 | *index = indexVars[i]; |
2418 | return entry; |
2419 | } |
2420 | |
2421 | if (!strcmp(kernel, "DEFAULT")) { |
2422 | if (index && *index > config->defaultImage) { |
2423 | entry = NULL; |
2424 | } else { |
2425 | entry = findEntryByIndex(config, config->defaultImage); |
2426 | if (entry && entry->skip) |
2427 | entry = NULL; |
2428 | else if (index) |
2429 | *index = config->defaultImage; |
2430 | } |
2431 | } else if (!strcmp(kernel, "ALL")) { |
2432 | if (index) |
2433 | i = *index; |
2434 | else |
2435 | i = 0; |
2436 | |
2437 | while ((entry = findEntryByIndex(config, i))) { |
2438 | if (!entry->skip) |
2439 | break; |
2440 | i++; |
2441 | } |
2442 | |
2443 | if (entry && index) |
2444 | *index = i; |
2445 | } else { |
2446 | if (index) |
2447 | i = *index; |
2448 | else |
2449 | i = 0; |
2450 | |
2451 | if (!strncmp(kernel, "TITLE=", 6)) { |
2452 | prefix = ""; |
2453 | checkType = LT_TITLE | LT_MENUENTRY; |
2454 | kernel += 6; |
2455 | } |
2456 | |
2457 | for (entry = findEntryByIndex(config, i); entry; |
2458 | entry = entry->next, i++) { |
2459 | if (entry->skip) |
2460 | continue; |
2461 | |
2462 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", |
2463 | checkType, kernel, entry); |
2464 | |
2465 | /* check all the lines matching checkType */ |
2466 | for (line = entry->lines; line; line = line->next) { |
2467 | enum lineType_e ct = checkType; |
2468 | if (entry->multiboot && checkType == LT_KERNEL) |
2469 | ct = LT_KERNEL | LT_KERNEL_EFI | |
2470 | LT_MBMODULE | LT_HYPER | |
2471 | LT_KERNEL_16; |
2472 | else if (checkType & LT_KERNEL) |
2473 | ct = checkType | LT_KERNEL_EFI | |
2474 | LT_KERNEL_16; |
2475 | line = getLineByType(ct, line); |
2476 | if (!line) |
2477 | break; /* not found in this entry */ |
2478 | |
2479 | if (line && line->type != LT_MENUENTRY && |
2480 | line->numElements >= 2) { |
2481 | if (!strcmp(line->elements[1].item + |
2482 | getRootSpecifier( |
2483 | line->elements[1].item), |
2484 | kernel + strlen(prefix))) |
2485 | break; |
2486 | } |
2487 | if (line->type == LT_MENUENTRY && |
2488 | !strcmp(line->elements[1].item, kernel)) |
2489 | break; |
2490 | } |
2491 | |
2492 | /* make sure this entry has a kernel identifier; this skips |
2493 | * non-Linux boot entries (could find netbsd etc, though, which is |
2494 | * unfortunate) |
2495 | */ |
2496 | if (line |
2497 | && getLineByType(LT_KERNEL | LT_HYPER | |
2498 | LT_KERNEL_EFI | LT_KERNEL_16, |
2499 | entry->lines)) |
2500 | break; /* found 'im! */ |
2501 | } |
2502 | |
2503 | if (index) |
2504 | *index = i; |
2505 | } |
2506 | |
2507 | return entry; |
2508 | } |
2509 | |
2510 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
2511 | int *index) |
2512 | { |
2513 | struct singleEntry *entry; |
2514 | struct singleLine *line; |
2515 | int i; |
2516 | char *newtitle; |
2517 | |
2518 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { |
2519 | if (index && i < *index) |
2520 | continue; |
2521 | line = getLineByType(LT_TITLE, entry->lines); |
2522 | if (!line) |
2523 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2524 | if (!line) |
2525 | continue; |
2526 | newtitle = grub2ExtractTitle(line); |
2527 | if (!newtitle) |
2528 | continue; |
2529 | if (!strcmp(title, newtitle)) |
2530 | break; |
2531 | } |
2532 | |
2533 | if (!entry) |
2534 | return NULL; |
2535 | |
2536 | if (index) |
2537 | *index = i; |
2538 | return entry; |
2539 | } |
2540 | |
2541 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index) |
2542 | { |
2543 | struct singleEntry *entry; |
2544 | |
2545 | entry = cfg->entries; |
2546 | while (index && entry) { |
2547 | entry = entry->next; |
2548 | index--; |
2549 | } |
2550 | |
2551 | return entry; |
2552 | } |
2553 | |
2554 | /* Find a good template to use for the new kernel. An entry is |
2555 | * good if the kernel and mkinitrd exist (even if the entry |
2556 | * is going to be removed). Try and use the default entry, but |
2557 | * if that doesn't work just take the first. If we can't find one, |
2558 | * bail. */ |
2559 | struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix, |
2560 | int *indexPtr, int skipRemoved, int flags) |
2561 | { |
2562 | struct singleEntry *entry, *entry2; |
2563 | int index; |
2564 | |
2565 | if (cfg->cfi->defaultIsSaved) { |
2566 | if (cfg->cfi->getEnv) { |
2567 | char *defTitle = |
2568 | cfg->cfi->getEnv(cfg->cfi, "saved_entry"); |
2569 | if (defTitle) { |
2570 | int index = 0; |
2571 | if (isnumber(defTitle)) { |
2572 | index = atoi(defTitle); |
2573 | entry = findEntryByIndex(cfg, index); |
2574 | } else { |
2575 | entry = |
2576 | findEntryByTitle(cfg, defTitle, |
2577 | &index); |
2578 | } |
2579 | if (entry |
2580 | && suitableImage(entry, prefix, skipRemoved, |
2581 | flags)) { |
2582 | cfg->defaultImage = index; |
2583 | if (indexPtr) |
2584 | *indexPtr = index; |
2585 | return entry; |
2586 | } |
2587 | } |
2588 | } |
2589 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
2590 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2591 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { |
2592 | if (indexPtr) |
2593 | *indexPtr = cfg->defaultImage; |
2594 | return entry; |
2595 | } |
2596 | } |
2597 | |
2598 | index = 0; |
2599 | while ((entry = findEntryByIndex(cfg, index))) { |
2600 | if (suitableImage(entry, prefix, skipRemoved, flags)) { |
2601 | int j, unmodifiedIndex; |
2602 | |
2603 | unmodifiedIndex = index; |
2604 | |
2605 | for (j = 0; j < unmodifiedIndex; j++) { |
2606 | entry2 = findEntryByIndex(cfg, j); |
2607 | if (entry2->skip) |
2608 | index--; |
2609 | } |
2610 | if (indexPtr) |
2611 | *indexPtr = index; |
2612 | |
2613 | return entry; |
2614 | } |
2615 | |
2616 | index++; |
2617 | } |
2618 | |
2619 | fprintf(stderr, |
2620 | _("grubby fatal error: unable to find a suitable template\n")); |
2621 | |
2622 | return NULL; |
2623 | } |
2624 | |
2625 | char *findBootPrefix(void) |
2626 | { |
2627 | struct stat sb, sb2; |
2628 | |
2629 | stat("/", &sb); |
2630 | #ifdef __ia64__ |
2631 | stat("/boot/efi/EFI/redhat/", &sb2); |
2632 | #else |
2633 | stat("/boot", &sb2); |
2634 | #endif |
2635 | |
2636 | if (sb.st_dev == sb2.st_dev) |
2637 | return strdup(""); |
2638 | |
2639 | #ifdef __ia64__ |
2640 | return strdup("/boot/efi/EFI/redhat/"); |
2641 | #else |
2642 | return strdup("/boot"); |
2643 | #endif |
2644 | } |
2645 | |
2646 | void markRemovedImage(struct grubConfig *cfg, const char *image, |
2647 | const char *prefix) |
2648 | { |
2649 | struct singleEntry *entry; |
2650 | |
2651 | if (!image) |
2652 | return; |
2653 | |
2654 | /* check and see if we're removing the default image */ |
2655 | if (isdigit(*image)) { |
2656 | entry = findEntryByPath(cfg, image, prefix, NULL); |
2657 | if (entry) |
2658 | entry->skip = 1; |
2659 | return; |
2660 | } |
2661 | |
2662 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2663 | entry->skip = 1; |
2664 | } |
2665 | |
2666 | void setDefaultImage(struct grubConfig *config, int isAddingBootEntry, |
2667 | const char *defaultKernelPath, int newBootEntryIsDefault, |
2668 | const char *prefix, int flags, |
2669 | int newDefaultBootEntryIndex, int newBootEntryIndex) |
2670 | { |
2671 | struct singleEntry *bootEntry, *newDefault; |
2672 | int indexToVerify, firstKernelEntryIndex, currentLookupIndex; |
2673 | |
2674 | /* initialize */ |
2675 | currentLookupIndex = FIRST_ENTRY_INDEX; |
2676 | |
2677 | /* handle the two cases where the user explictly picks the default |
2678 | * boot entry index as it would exist post-modification */ |
2679 | |
2680 | /* Case 1: user chose to make the latest boot entry the default */ |
2681 | if (newBootEntryIsDefault) { |
2682 | config->defaultImage = newBootEntryIndex; |
2683 | return; |
2684 | } |
2685 | |
2686 | /* Case 2: user picked an arbitrary index as the default boot entry */ |
2687 | if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) { |
2688 | indexToVerify = newDefaultBootEntryIndex; |
2689 | |
2690 | /* user chose to make latest boot entry the default */ |
2691 | if (newDefaultBootEntryIndex == newBootEntryIndex) { |
2692 | config->defaultImage = newBootEntryIndex; |
2693 | return; |
2694 | } |
2695 | |
2696 | /* the user picks the default index based on the |
2697 | * order of the bootloader configuration after |
2698 | * modification; ensure we are checking for the |
2699 | * existence of the correct entry */ |
2700 | if (newBootEntryIndex < newDefaultBootEntryIndex) { |
2701 | if (!config->isModified) |
2702 | indexToVerify--; |
2703 | } |
2704 | |
2705 | /* verify the user selected index will exist */ |
2706 | if (findEntryByIndex(config, indexToVerify)) { |
2707 | config->defaultImage = newDefaultBootEntryIndex; |
2708 | } else { |
2709 | config->defaultImage = NO_DEFAULT_ENTRY; |
2710 | } |
2711 | |
2712 | return; |
2713 | } |
2714 | |
2715 | /* handle cases where the index value may shift */ |
2716 | |
2717 | /* check validity of existing default or first-entry-found |
2718 | selection */ |
2719 | if (defaultKernelPath) { |
2720 | /* we must initialize this */ |
2721 | firstKernelEntryIndex = 0; |
2722 | /* user requested first-entry-found */ |
2723 | if (!findEntryByPath(config, defaultKernelPath, |
2724 | prefix, &firstKernelEntryIndex)) { |
2725 | /* don't change default if can't find match */ |
2726 | config->defaultImage = NO_DEFAULT_ENTRY; |
2727 | return; |
2728 | } |
2729 | |
2730 | config->defaultImage = firstKernelEntryIndex; |
2731 | |
2732 | /* this is where we start looking for decrement later */ |
2733 | currentLookupIndex = config->defaultImage; |
2734 | |
2735 | if (isAddingBootEntry && !config->isModified && |
2736 | (newBootEntryIndex < config->defaultImage)) { |
2737 | /* increment because new entry added before default */ |
2738 | config->defaultImage++; |
2739 | } |
2740 | } else { |
2741 | /* check to see if the default is stored in the environment */ |
2742 | if (config->defaultImage < FIRST_ENTRY_INDEX) { |
2743 | if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2) |
2744 | { |
2745 | if (config->cfi->defaultIsSaved) { |
2746 | if (config->cfi->getEnv) { |
2747 | char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry"); |
2748 | |
2749 | if (defaultTitle) { |
2750 | if (isnumber(defaultTitle)) { |
2751 | currentLookupIndex = atoi(defaultTitle); |
2752 | } else { |
2753 | findEntryByTitle(config, defaultTitle, ¤tLookupIndex); |
2754 | } |
2755 | /* set the default Image to an actual index */ |
2756 | config->defaultImage = currentLookupIndex; |
2757 | } |
2758 | } |
2759 | } |
2760 | } |
2761 | } else { |
2762 | /* use pre-existing default entry from the file*/ |
2763 | currentLookupIndex = config->defaultImage; |
2764 | } |
2765 | |
2766 | if (isAddingBootEntry |
2767 | && (newBootEntryIndex <= config->defaultImage)) { |
2768 | config->defaultImage++; |
2769 | |
2770 | if (config->isModified) { |
2771 | currentLookupIndex++; |
2772 | } |
2773 | } |
2774 | } |
2775 | |
2776 | /* sanity check - is this entry index valid? */ |
2777 | bootEntry = findEntryByIndex(config, currentLookupIndex); |
2778 | |
2779 | if ((bootEntry && bootEntry->skip) || !bootEntry) { |
2780 | /* entry is to be skipped or is invalid */ |
2781 | if (isAddingBootEntry) { |
2782 | config->defaultImage = newBootEntryIndex; |
2783 | return; |
2784 | } |
2785 | newDefault = |
2786 | findTemplate(config, prefix, &config->defaultImage, 1, |
2787 | flags); |
2788 | if (!newDefault) { |
2789 | config->defaultImage = NO_DEFAULT_ENTRY; |
2790 | } |
2791 | |
2792 | return; |
2793 | } |
2794 | |
2795 | currentLookupIndex--; |
2796 | |
2797 | /* decrement index by the total number of entries deleted */ |
2798 | |
2799 | for (indexToVerify = currentLookupIndex; |
2800 | indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) { |
2801 | |
2802 | bootEntry = findEntryByIndex(config, indexToVerify); |
2803 | |
2804 | if (bootEntry && bootEntry->skip) { |
2805 | config->defaultImage--; |
2806 | } |
2807 | } |
2808 | } |
2809 | |
2810 | void setFallbackImage(struct grubConfig *config, int hasNew) |
2811 | { |
2812 | struct singleEntry *entry, *entry2; |
2813 | int j; |
2814 | |
2815 | if (config->fallbackImage == -1) |
2816 | return; |
2817 | |
2818 | entry = findEntryByIndex(config, config->fallbackImage); |
2819 | if (!entry || entry->skip) { |
2820 | config->fallbackImage = -1; |
2821 | return; |
2822 | } |
2823 | |
2824 | if (hasNew) |
2825 | config->fallbackImage++; |
2826 | |
2827 | /* count the number of entries erased before this one */ |
2828 | for (j = 0; j < config->fallbackImage; j++) { |
2829 | entry2 = findEntryByIndex(config, j); |
2830 | if (entry2->skip) |
2831 | config->fallbackImage--; |
2832 | } |
2833 | } |
2834 | |
2835 | void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index) |
2836 | { |
2837 | struct singleLine *line; |
2838 | char *root = NULL; |
2839 | int i; |
2840 | int j; |
2841 | |
2842 | printf("index=%d\n", index); |
2843 | |
2844 | line = |
2845 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2846 | entry->lines); |
2847 | if (!line) { |
2848 | printf("non linux entry\n"); |
2849 | return; |
2850 | } |
2851 | |
2852 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2853 | printf("kernel=%s\n", line->elements[1].item); |
2854 | else |
2855 | printf("kernel=%s%s\n", prefix, line->elements[1].item); |
2856 | |
2857 | if (line->numElements >= 3) { |
2858 | printf("args=\""); |
2859 | i = 2; |
2860 | while (i < line->numElements) { |
2861 | if (!strncmp(line->elements[i].item, "root=", 5)) { |
2862 | root = line->elements[i].item + 5; |
2863 | } else { |
2864 | printf("%s%s", line->elements[i].item, |
2865 | line->elements[i].indent); |
2866 | } |
2867 | |
2868 | i++; |
2869 | } |
2870 | printf("\"\n"); |
2871 | } else { |
2872 | line = getLineByType(LT_KERNELARGS, entry->lines); |
2873 | if (line) { |
2874 | char *s; |
2875 | |
2876 | printf("args=\""); |
2877 | i = 1; |
2878 | while (i < line->numElements) { |
2879 | if (!strncmp |
2880 | (line->elements[i].item, "root=", 5)) { |
2881 | root = line->elements[i].item + 5; |
2882 | } else { |
2883 | s = line->elements[i].item; |
2884 | |
2885 | printf("%s%s", s, |
2886 | line->elements[i].indent); |
2887 | } |
2888 | |
2889 | i++; |
2890 | } |
2891 | |
2892 | s = line->elements[i - 1].indent; |
2893 | printf("\"\n"); |
2894 | } |
2895 | } |
2896 | |
2897 | if (!root) { |
2898 | line = getLineByType(LT_ROOT, entry->lines); |
2899 | if (line && line->numElements >= 2) |
2900 | root = line->elements[1].item; |
2901 | } |
2902 | |
2903 | if (root) { |
2904 | char *s = alloca(strlen(root) + 1); |
2905 | |
2906 | strcpy(s, root); |
2907 | if (s[strlen(s) - 1] == '"') |
2908 | s[strlen(s) - 1] = '\0'; |
2909 | /* make sure the root doesn't have a trailing " */ |
2910 | printf("root=%s\n", s); |
2911 | } |
2912 | |
2913 | line = |
2914 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
2915 | entry->lines); |
2916 | |
2917 | if (line && line->numElements >= 2) { |
2918 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2919 | printf("initrd="); |
2920 | else |
2921 | printf("initrd=%s", prefix); |
2922 | |
2923 | for (i = 1; i < line->numElements; i++) |
2924 | printf("%s%s", line->elements[i].item, |
2925 | line->elements[i].indent); |
2926 | printf("\n"); |
2927 | } |
2928 | |
2929 | line = getLineByType(LT_TITLE, entry->lines); |
2930 | if (line) { |
2931 | char *entryTitle; |
2932 | /* if we can extractTitle, then it's a zipl config and |
2933 | * if not then we go ahead with what's existed prior */ |
2934 | entryTitle = extractTitle(config, line); |
2935 | if (!entryTitle) { |
2936 | entryTitle=line->elements[1].item; |
2937 | } |
2938 | printf("title=%s\n", entryTitle); |
2939 | } else { |
2940 | char *title; |
2941 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2942 | if (line) { |
2943 | title = grub2ExtractTitle(line); |
2944 | if (title) |
2945 | printf("title=%s\n", title); |
2946 | } |
2947 | } |
2948 | |
2949 | for (j = 0, line = entry->lines; line; line = line->next) { |
2950 | if ((line->type & LT_MBMODULE) && line->numElements >= 2) { |
2951 | if (!strncmp |
2952 | (prefix, line->elements[1].item, strlen(prefix))) |
2953 | printf("mbmodule%d=", j); |
2954 | else |
2955 | printf("mbmodule%d=%s", j, prefix); |
2956 | |
2957 | for (i = 1; i < line->numElements; i++) |
2958 | printf("%s%s", line->elements[i].item, |
2959 | line->elements[i].indent); |
2960 | printf("\n"); |
2961 | j++; |
2962 | } |
2963 | } |
2964 | } |
2965 | |
2966 | int isSuseSystem(void) |
2967 | { |
2968 | const char *path; |
2969 | const static char default_path[] = "/etc/SuSE-release"; |
2970 | |
2971 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) |
2972 | path = default_path; |
2973 | |
2974 | if (!access(path, R_OK)) |
2975 | return 1; |
2976 | return 0; |
2977 | } |
2978 | |
2979 | int isSuseGrubConf(const char *path) |
2980 | { |
2981 | FILE *grubConf; |
2982 | char *line = NULL; |
2983 | size_t len = 0, res = 0; |
2984 | |
2985 | grubConf = fopen(path, "r"); |
2986 | if (!grubConf) { |
2987 | dbgPrintf("Could not open SuSE configuration file '%s'\n", |
2988 | path); |
2989 | return 0; |
2990 | } |
2991 | |
2992 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2993 | if (!strncmp(line, "setup", 5)) { |
2994 | fclose(grubConf); |
2995 | free(line); |
2996 | return 1; |
2997 | } |
2998 | } |
2999 | |
3000 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", |
3001 | path); |
3002 | |
3003 | fclose(grubConf); |
3004 | free(line); |
3005 | return 0; |
3006 | } |
3007 | |
3008 | int suseGrubConfGetLba(const char *path, int *lbaPtr) |
3009 | { |
3010 | FILE *grubConf; |
3011 | char *line = NULL; |
3012 | size_t res = 0, len = 0; |
3013 | |
3014 | if (!path) |
3015 | return 1; |
3016 | if (!lbaPtr) |
3017 | return 1; |
3018 | |
3019 | grubConf = fopen(path, "r"); |
3020 | if (!grubConf) |
3021 | return 1; |
3022 | |
3023 | while ((res = getline(&line, &len, grubConf)) != -1) { |
3024 | if (line[res - 1] == '\n') |
3025 | line[res - 1] = '\0'; |
3026 | else if (len > res) |
3027 | line[res] = '\0'; |
3028 | else { |
3029 | line = realloc(line, res + 1); |
3030 | line[res] = '\0'; |
3031 | } |
3032 | |
3033 | if (!strncmp(line, "setup", 5)) { |
3034 | if (strstr(line, "--force-lba")) { |
3035 | *lbaPtr = 1; |
3036 | } else { |
3037 | *lbaPtr = 0; |
3038 | } |
3039 | dbgPrintf("lba: %i\n", *lbaPtr); |
3040 | break; |
3041 | } |
3042 | } |
3043 | |
3044 | free(line); |
3045 | fclose(grubConf); |
3046 | return 0; |
3047 | } |
3048 | |
3049 | int suseGrubConfGetInstallDevice(const char *path, char **devicePtr) |
3050 | { |
3051 | FILE *grubConf; |
3052 | char *line = NULL; |
3053 | size_t res = 0, len = 0; |
3054 | char *lastParamPtr = NULL; |
3055 | char *secLastParamPtr = NULL; |
3056 | char installDeviceNumber = '\0'; |
3057 | char *bounds = NULL; |
3058 | |
3059 | if (!path) |
3060 | return 1; |
3061 | if (!devicePtr) |
3062 | return 1; |
3063 | |
3064 | grubConf = fopen(path, "r"); |
3065 | if (!grubConf) |
3066 | return 1; |
3067 | |
3068 | while ((res = getline(&line, &len, grubConf)) != -1) { |
3069 | if (strncmp(line, "setup", 5)) |
3070 | continue; |
3071 | |
3072 | if (line[res - 1] == '\n') |
3073 | line[res - 1] = '\0'; |
3074 | else if (len > res) |
3075 | line[res] = '\0'; |
3076 | else { |
3077 | line = realloc(line, res + 1); |
3078 | line[res] = '\0'; |
3079 | } |
3080 | |
3081 | lastParamPtr = bounds = line + res; |
3082 | |
3083 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ |
3084 | while (!isspace(*lastParamPtr)) |
3085 | lastParamPtr--; |
3086 | lastParamPtr++; |
3087 | |
3088 | secLastParamPtr = lastParamPtr - 2; |
3089 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); |
3090 | |
3091 | if (lastParamPtr + 3 > bounds) { |
3092 | dbgPrintf("lastParamPtr going over boundary"); |
3093 | fclose(grubConf); |
3094 | free(line); |
3095 | return 1; |
3096 | } |
3097 | if (!strncmp(lastParamPtr, "(hd", 3)) |
3098 | lastParamPtr += 3; |
3099 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); |
3100 | |
3101 | /* |
3102 | * Second last parameter will decide wether last parameter is |
3103 | * an IMAGE_DEVICE or INSTALL_DEVICE |
3104 | */ |
3105 | while (!isspace(*secLastParamPtr)) |
3106 | secLastParamPtr--; |
3107 | secLastParamPtr++; |
3108 | |
3109 | if (secLastParamPtr + 3 > bounds) { |
3110 | dbgPrintf("secLastParamPtr going over boundary"); |
3111 | fclose(grubConf); |
3112 | free(line); |
3113 | return 1; |
3114 | } |
3115 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); |
3116 | if (!strncmp(secLastParamPtr, "(hd", 3)) { |
3117 | secLastParamPtr += 3; |
3118 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); |
3119 | installDeviceNumber = *secLastParamPtr; |
3120 | } else { |
3121 | installDeviceNumber = *lastParamPtr; |
3122 | } |
3123 | |
3124 | *devicePtr = malloc(6); |
3125 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); |
3126 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); |
3127 | fclose(grubConf); |
3128 | free(line); |
3129 | return 0; |
3130 | } |
3131 | |
3132 | free(line); |
3133 | fclose(grubConf); |
3134 | return 1; |
3135 | } |
3136 | |
3137 | int grubGetBootFromDeviceMap(const char *device, char **bootPtr) |
3138 | { |
3139 | FILE *deviceMap; |
3140 | char *line = NULL; |
3141 | size_t res = 0, len = 0; |
3142 | char *devicePtr; |
3143 | char *bounds = NULL; |
3144 | const char *path; |
3145 | const static char default_path[] = "/boot/grub/device.map"; |
3146 | |
3147 | if (!device) |
3148 | return 1; |
3149 | if (!bootPtr) |
3150 | return 1; |
3151 | |
3152 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) |
3153 | path = default_path; |
3154 | |
3155 | dbgPrintf("opening grub device.map file from: %s\n", path); |
3156 | deviceMap = fopen(path, "r"); |
3157 | if (!deviceMap) |
3158 | return 1; |
3159 | |
3160 | while ((res = getline(&line, &len, deviceMap)) != -1) { |
3161 | if (!strncmp(line, "#", 1)) |
3162 | continue; |
3163 | |
3164 | if (line[res - 1] == '\n') |
3165 | line[res - 1] = '\0'; |
3166 | else if (len > res) |
3167 | line[res] = '\0'; |
3168 | else { |
3169 | line = realloc(line, res + 1); |
3170 | line[res] = '\0'; |
3171 | } |
3172 | |
3173 | devicePtr = line; |
3174 | bounds = line + res; |
3175 | |
3176 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) |
3177 | devicePtr++; |
3178 | dbgPrintf("device: %s\n", devicePtr); |
3179 | |
3180 | if (!strncmp(devicePtr, device, strlen(device))) { |
3181 | devicePtr += strlen(device); |
3182 | while (isspace(*devicePtr) |
3183 | && ((devicePtr + 1) <= bounds)) |
3184 | devicePtr++; |
3185 | |
3186 | *bootPtr = strdup(devicePtr); |
3187 | break; |
3188 | } |
3189 | } |
3190 | |
3191 | free(line); |
3192 | fclose(deviceMap); |
3193 | return 0; |
3194 | } |
3195 | |
3196 | int suseGrubConfGetBoot(const char *path, char **bootPtr) |
3197 | { |
3198 | char *grubDevice; |
3199 | |
3200 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) |
3201 | dbgPrintf("error looking for grub installation device\n"); |
3202 | else |
3203 | dbgPrintf("grubby installation device: %s\n", grubDevice); |
3204 | |
3205 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) |
3206 | dbgPrintf("error looking for grub boot device\n"); |
3207 | else |
3208 | dbgPrintf("grubby boot device: %s\n", *bootPtr); |
3209 | |
3210 | free(grubDevice); |
3211 | return 0; |
3212 | } |
3213 | |
3214 | int parseSuseGrubConf(int *lbaPtr, char **bootPtr) |
3215 | { |
3216 | /* |
3217 | * This SuSE grub configuration file at this location is not your |
3218 | * average grub configuration file, but instead the grub commands |
3219 | * used to setup grub on that system. |
3220 | */ |
3221 | const char *path; |
3222 | const static char default_path[] = "/etc/grub.conf"; |
3223 | |
3224 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) |
3225 | path = default_path; |
3226 | |
3227 | if (!isSuseGrubConf(path)) |
3228 | return 1; |
3229 | |
3230 | if (lbaPtr) { |
3231 | *lbaPtr = 0; |
3232 | if (suseGrubConfGetLba(path, lbaPtr)) |
3233 | return 1; |
3234 | } |
3235 | |
3236 | if (bootPtr) { |
3237 | *bootPtr = NULL; |
3238 | suseGrubConfGetBoot(path, bootPtr); |
3239 | } |
3240 | |
3241 | return 0; |
3242 | } |
3243 | |
3244 | int parseSysconfigGrub(int *lbaPtr, char **bootPtr) |
3245 | { |
3246 | FILE *in; |
3247 | char buf[1024]; |
3248 | char *chptr; |
3249 | char *start; |
3250 | char *param; |
3251 | |
3252 | in = fopen("/etc/sysconfig/grub", "r"); |
3253 | if (!in) |
3254 | return 1; |
3255 | |
3256 | if (lbaPtr) |
3257 | *lbaPtr = 0; |
3258 | if (bootPtr) |
3259 | *bootPtr = NULL; |
3260 | |
3261 | while (fgets(buf, sizeof(buf), in)) { |
3262 | start = buf; |
3263 | while (isspace(*start)) |
3264 | start++; |
3265 | if (*start == '#') |
3266 | continue; |
3267 | |
3268 | chptr = strchr(start, '='); |
3269 | if (!chptr) |
3270 | continue; |
3271 | chptr--; |
3272 | while (*chptr && isspace(*chptr)) |
3273 | chptr--; |
3274 | chptr++; |
3275 | *chptr = '\0'; |
3276 | |
3277 | param = chptr + 1; |
3278 | while (*param && isspace(*param)) |
3279 | param++; |
3280 | if (*param == '=') { |
3281 | param++; |
3282 | while (*param && isspace(*param)) |
3283 | param++; |
3284 | } |
3285 | |
3286 | chptr = param; |
3287 | while (*chptr && !isspace(*chptr)) |
3288 | chptr++; |
3289 | *chptr = '\0'; |
3290 | |
3291 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) |
3292 | *lbaPtr = 1; |
3293 | else if (!strcmp(start, "boot") && bootPtr) |
3294 | *bootPtr = strdup(param); |
3295 | } |
3296 | |
3297 | fclose(in); |
3298 | |
3299 | return 0; |
3300 | } |
3301 | |
3302 | void dumpSysconfigGrub(void) |
3303 | { |
3304 | char *boot = NULL; |
3305 | int lba; |
3306 | |
3307 | if (isSuseSystem()) { |
3308 | if (parseSuseGrubConf(&lba, &boot)) { |
3309 | free(boot); |
3310 | return; |
3311 | } |
3312 | } else { |
3313 | if (parseSysconfigGrub(&lba, &boot)) { |
3314 | free(boot); |
3315 | return; |
3316 | } |
3317 | } |
3318 | |
3319 | if (lba) |
3320 | printf("lba\n"); |
3321 | if (boot) { |
3322 | printf("boot=%s\n", boot); |
3323 | free(boot); |
3324 | } |
3325 | } |
3326 | |
3327 | int displayInfo(struct grubConfig *config, char *kernel, const char *prefix) |
3328 | { |
3329 | int i = 0; |
3330 | struct singleEntry *entry; |
3331 | struct singleLine *line; |
3332 | |
3333 | entry = findEntryByPath(config, kernel, prefix, &i); |
3334 | if (!entry) { |
3335 | fprintf(stderr, _("grubby: kernel not found\n")); |
3336 | return 1; |
3337 | } |
3338 | |
3339 | /* this is a horrible hack to support /etc/sysconfig/grub; there must |
3340 | be a better way */ |
3341 | if (config->cfi == &grubConfigType) { |
3342 | dumpSysconfigGrub(); |
3343 | } else { |
3344 | line = getLineByType(LT_BOOT, config->theLines); |
3345 | if (line && line->numElements >= 1) { |
3346 | printf("boot=%s\n", line->elements[1].item); |
3347 | } |
3348 | |
3349 | line = getLineByType(LT_LBA, config->theLines); |
3350 | if (line) |
3351 | printf("lba\n"); |
3352 | } |
3353 | |
3354 | displayEntry(config, entry, prefix, i); |
3355 | |
3356 | i++; |
3357 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { |
3358 | displayEntry(config, entry, prefix, i); |
3359 | i++; |
3360 | } |
3361 | |
3362 | return 0; |
3363 | } |
3364 | |
3365 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
3366 | struct singleLine *tmplLine, |
3367 | struct singleLine *prevLine, |
3368 | const char *val, struct configFileInfo *cfi) |
3369 | { |
3370 | struct singleLine *newLine = lineDup(tmplLine); |
3371 | |
3372 | if (isEfi && cfi == &grub2ConfigType) { |
3373 | enum lineType_e old = newLine->type; |
3374 | newLine->type = preferredLineType(newLine->type, cfi); |
3375 | if (old != newLine->type) |
3376 | newLine->elements[0].item = |
3377 | getKeyByType(newLine->type, cfi); |
3378 | } |
3379 | |
3380 | if (val) { |
3381 | /* override the inherited value with our own. |
3382 | * This is a little weak because it only applies to elements[1] |
3383 | */ |
3384 | if (newLine->numElements > 1) |
3385 | removeElement(newLine, 1); |
3386 | insertElement(newLine, val, 1, cfi); |
3387 | |
3388 | /* but try to keep the rootspec from the template... sigh */ |
3389 | if (tmplLine-> |
3390 | type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD | |
3391 | LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 | |
3392 | LT_INITRD_16)) { |
3393 | const char *prfx = tmplLine->elements[1].item; |
3394 | size_t rs = getRootSpecifier(prfx); |
3395 | if (isinitrd(tmplLine->type)) { |
3396 | for (struct singleLine *l = entry->lines; |
3397 | rs == 0 && l; l = l->next) { |
3398 | if (iskernel(l->type)) { |
3399 | prfx = l->elements[1].item; |
3400 | rs = getRootSpecifier(prfx); |
3401 | break; |
3402 | } |
3403 | } |
3404 | } |
3405 | if (rs > 0) { |
3406 | free(newLine->elements[1].item); |
3407 | newLine->elements[1].item = sdupprintf( |
3408 | "%.*s%s", (int) rs, prfx, val); |
3409 | } |
3410 | } |
3411 | } |
3412 | |
3413 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? |
3414 | newLine->elements[0].item : ""); |
3415 | |
3416 | if (!entry->lines) { |
3417 | /* first one on the list */ |
3418 | entry->lines = newLine; |
3419 | } else if (prevLine) { |
3420 | /* add after prevLine */ |
3421 | newLine->next = prevLine->next; |
3422 | prevLine->next = newLine; |
3423 | } |
3424 | |
3425 | return newLine; |
3426 | } |
3427 | |
3428 | /* val may be NULL */ |
3429 | struct singleLine *addLine(struct singleEntry *entry, |
3430 | struct configFileInfo *cfi, |
3431 | enum lineType_e type, char *defaultIndent, |
3432 | const char *val) |
3433 | { |
3434 | struct singleLine *line, *prev; |
3435 | struct keywordTypes *kw; |
3436 | struct singleLine tmpl; |
3437 | |
3438 | /* NB: This function shouldn't allocate items on the heap, rather on |
3439 | * the stack since it calls addLineTmpl which will make copies. |
3440 | */ |
3441 | if (type == LT_TITLE && cfi->titleBracketed) { |
3442 | /* we're doing a bracketed title (zipl) */ |
3443 | tmpl.type = type; |
3444 | tmpl.numElements = 1; |
3445 | tmpl.elements = alloca(sizeof(*tmpl.elements)); |
3446 | tmpl.elements[0].item = alloca(strlen(val) + 3); |
3447 | sprintf(tmpl.elements[0].item, "[%s]", val); |
3448 | tmpl.elements[0].indent = ""; |
3449 | val = NULL; |
3450 | } else if (type == LT_MENUENTRY) { |
3451 | char *lineend = "--class gnu-linux --class gnu --class os {"; |
3452 | if (!val) { |
3453 | fprintf(stderr, |
3454 | "Line type LT_MENUENTRY requires a value\n"); |
3455 | abort(); |
3456 | } |
3457 | kw = getKeywordByType(type, cfi); |
3458 | if (!kw) { |
3459 | fprintf(stderr, |
3460 | "Looking up keyword for unknown type %d\n", |
3461 | type); |
3462 | abort(); |
3463 | } |
3464 | tmpl.indent = ""; |
3465 | tmpl.type = type; |
3466 | tmpl.numElements = 3; |
3467 | tmpl.elements = |
3468 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3469 | tmpl.elements[0].item = kw->key; |
3470 | tmpl.elements[0].indent = alloca(2); |
3471 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3472 | tmpl.elements[1].item = (char *)val; |
3473 | tmpl.elements[1].indent = alloca(2); |
3474 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); |
3475 | tmpl.elements[2].item = alloca(strlen(lineend) + 1); |
3476 | strcpy(tmpl.elements[2].item, lineend); |
3477 | tmpl.elements[2].indent = ""; |
3478 | } else { |
3479 | kw = getKeywordByType(type, cfi); |
3480 | if (!kw) { |
3481 | fprintf(stderr, |
3482 | "Looking up keyword for unknown type %d\n", |
3483 | type); |
3484 | abort(); |
3485 | } |
3486 | tmpl.type = type; |
3487 | tmpl.numElements = val ? 2 : 1; |
3488 | tmpl.elements = |
3489 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3490 | tmpl.elements[0].item = kw->key; |
3491 | tmpl.elements[0].indent = alloca(2); |
3492 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3493 | if (val) { |
3494 | tmpl.elements[1].item = (char *)val; |
3495 | tmpl.elements[1].indent = ""; |
3496 | } |
3497 | } |
3498 | |
3499 | /* The last non-empty line gives us the indention to us and the line |
3500 | * to insert after. Note that comments are considered empty lines, |
3501 | * which may not be ideal? If there are no lines or we are looking at |
3502 | * the first line, we use defaultIndent (the first line is normally |
3503 | * indented differently from the rest) */ |
3504 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
3505 | if (line->numElements) |
3506 | prev = line; |
3507 | /* fall back on the last line if prev isn't otherwise set */ |
3508 | if (!line->next && !prev) |
3509 | prev = line; |
3510 | } |
3511 | |
3512 | struct singleLine *menuEntry; |
3513 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); |
3514 | if (tmpl.type == LT_ENTRY_END) { |
3515 | if (menuEntry) |
3516 | tmpl.indent = menuEntry->indent; |
3517 | else |
3518 | tmpl.indent = defaultIndent ? : ""; |
3519 | } else if (tmpl.type != LT_MENUENTRY) { |
3520 | if (menuEntry) |
3521 | tmpl.indent = "\t"; |
3522 | else if (prev == entry->lines) |
3523 | tmpl.indent = defaultIndent ? : ""; |
3524 | else |
3525 | tmpl.indent = prev->indent; |
3526 | } |
3527 | |
3528 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
3529 | } |
3530 | |
3531 | void removeLine(struct singleEntry *entry, struct singleLine *line) |
3532 | { |
3533 | struct singleLine *prev; |
3534 | int i; |
3535 | |
3536 | for (i = 0; i < line->numElements; i++) { |
3537 | free(line->elements[i].item); |
3538 | free(line->elements[i].indent); |
3539 | } |
3540 | free(line->elements); |
3541 | free(line->indent); |
3542 | |
3543 | if (line == entry->lines) { |
3544 | entry->lines = line->next; |
3545 | } else { |
3546 | prev = entry->lines; |
3547 | while (prev->next != line) |
3548 | prev = prev->next; |
3549 | prev->next = line->next; |
3550 | } |
3551 | |
3552 | free(line); |
3553 | } |
3554 | |
3555 | static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi) |
3556 | { |
3557 | struct singleLine newLine = { |
3558 | .indent = tmplLine->indent, |
3559 | .type = tmplLine->type, |
3560 | .next = tmplLine->next, |
3561 | }; |
3562 | int firstQuotedItem = -1; |
3563 | int quoteLen = 0; |
3564 | int j; |
3565 | int element = 0; |
3566 | char *c; |
3567 | |
3568 | c = malloc(strlen(tmplLine->elements[0].item) + 1); |
3569 | strcpy(c, tmplLine->elements[0].item); |
3570 | insertElement(&newLine, c, element++, cfi); |
3571 | free(c); |
3572 | c = NULL; |
3573 | |
3574 | for (j = 1; j < tmplLine->numElements; j++) { |
3575 | if (firstQuotedItem == -1) { |
3576 | quoteLen += strlen(tmplLine->elements[j].item); |
3577 | |
3578 | if (isquote(tmplLine->elements[j].item[0])) { |
3579 | firstQuotedItem = j; |
3580 | quoteLen += |
3581 | strlen(tmplLine->elements[j].indent); |
3582 | } else { |
3583 | c = malloc(quoteLen + 1); |
3584 | strcpy(c, tmplLine->elements[j].item); |
3585 | insertElement(&newLine, c, element++, cfi); |
3586 | free(c); |
3587 | quoteLen = 0; |
3588 | } |
3589 | } else { |
3590 | int itemlen = strlen(tmplLine->elements[j].item); |
3591 | quoteLen += itemlen; |
3592 | quoteLen += strlen(tmplLine->elements[j].indent); |
3593 | |
3594 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { |
3595 | c = malloc(quoteLen + 1); |
3596 | c[0] = '\0'; |
3597 | for (int i = firstQuotedItem; i < j + 1; i++) { |
3598 | strcat(c, tmplLine->elements[i].item); |
3599 | strcat(c, tmplLine->elements[i].indent); |
3600 | } |
3601 | insertElement(&newLine, c, element++, cfi); |
3602 | free(c); |
3603 | |
3604 | firstQuotedItem = -1; |
3605 | quoteLen = 0; |
3606 | } |
3607 | } |
3608 | } |
3609 | while (tmplLine->numElements) |
3610 | removeElement(tmplLine, 0); |
3611 | if (tmplLine->elements) |
3612 | free(tmplLine->elements); |
3613 | |
3614 | tmplLine->numElements = newLine.numElements; |
3615 | tmplLine->elements = newLine.elements; |
3616 | } |
3617 | |
3618 | static void insertElement(struct singleLine *line, |
3619 | const char *item, int insertHere, |
3620 | struct configFileInfo *cfi) |
3621 | { |
3622 | struct keywordTypes *kw; |
3623 | char indent[2] = ""; |
3624 | |
3625 | /* sanity check */ |
3626 | if (insertHere > line->numElements) { |
3627 | dbgPrintf |
3628 | ("insertElement() adjusting insertHere from %d to %d\n", |
3629 | insertHere, line->numElements); |
3630 | insertHere = line->numElements; |
3631 | } |
3632 | |
3633 | line->elements = realloc(line->elements, (line->numElements + 1) * |
3634 | sizeof(*line->elements)); |
3635 | memmove(&line->elements[insertHere + 1], |
3636 | &line->elements[insertHere], |
3637 | (line->numElements - insertHere) * sizeof(*line->elements)); |
3638 | line->elements[insertHere].item = strdup(item); |
3639 | |
3640 | kw = getKeywordByType(line->type, cfi); |
3641 | |
3642 | if (line->numElements == 0) { |
3643 | indent[0] = '\0'; |
3644 | } else if (insertHere == 0) { |
3645 | indent[0] = kw->nextChar; |
3646 | } else if (kw->separatorChar != '\0') { |
3647 | indent[0] = kw->separatorChar; |
3648 | } else { |
3649 | indent[0] = ' '; |
3650 | } |
3651 | |
3652 | if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') { |
3653 | /* move the end-of-line forward */ |
3654 | line->elements[insertHere].indent = |
3655 | line->elements[insertHere - 1].indent; |
3656 | line->elements[insertHere - 1].indent = strdup(indent); |
3657 | } else { |
3658 | line->elements[insertHere].indent = strdup(indent); |
3659 | } |
3660 | |
3661 | line->numElements++; |
3662 | |
3663 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", |
3664 | line->elements[0].item, |
3665 | line->elements[insertHere].item, |
3666 | line->elements[insertHere].indent, insertHere); |
3667 | } |
3668 | |
3669 | static void removeElement(struct singleLine *line, int removeHere) |
3670 | { |
3671 | int i; |
3672 | |
3673 | /* sanity check */ |
3674 | if (removeHere >= line->numElements) |
3675 | return; |
3676 | |
3677 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, |
3678 | removeHere, line->elements[removeHere].item); |
3679 | |
3680 | free(line->elements[removeHere].item); |
3681 | |
3682 | if (removeHere > 1) { |
3683 | /* previous argument gets this argument's post-indentation */ |
3684 | free(line->elements[removeHere - 1].indent); |
3685 | line->elements[removeHere - 1].indent = |
3686 | line->elements[removeHere].indent; |
3687 | } else { |
3688 | free(line->elements[removeHere].indent); |
3689 | } |
3690 | |
3691 | /* now collapse the array, but don't bother to realloc smaller */ |
3692 | for (i = removeHere; i < line->numElements - 1; i++) |
3693 | line->elements[i] = line->elements[i + 1]; |
3694 | |
3695 | line->numElements--; |
3696 | } |
3697 | |
3698 | static int argNameMatch(const char *one, const char *two) |
3699 | { |
3700 | char *first, *second; |
3701 | char *chptra, *chptrb; |
3702 | int rc; |
3703 | |
3704 | first = strcpy(alloca(strlen(one) + 1), one); |
3705 | second = strcpy(alloca(strlen(two) + 1), two); |
3706 | |
3707 | chptra = strchr(first, '='); |
3708 | if (chptra) |
3709 | *chptra = '\0'; |
3710 | |
3711 | chptrb = strchr(second, '='); |
3712 | if (chptrb) |
3713 | *chptrb = '\0'; |
3714 | |
3715 | rc = strcmp(first, second); |
3716 | |
3717 | if (chptra) |
3718 | *chptra = '='; |
3719 | if (chptrb) |
3720 | *chptrb = '='; |
3721 | |
3722 | return rc; |
3723 | } |
3724 | |
3725 | static int argHasValue(const char *arg) |
3726 | { |
3727 | char *chptr; |
3728 | |
3729 | chptr = strchr(arg, '='); |
3730 | if (chptr) |
3731 | return 1; |
3732 | return 0; |
3733 | } |
3734 | |
3735 | static int argValueMatch(const char *one, const char *two) |
3736 | { |
3737 | char *first, *second; |
3738 | char *chptra, *chptrb; |
3739 | |
3740 | first = strcpy(alloca(strlen(one) + 1), one); |
3741 | second = strcpy(alloca(strlen(two) + 1), two); |
3742 | |
3743 | chptra = strchr(first, '='); |
3744 | if (chptra) |
3745 | chptra += 1; |
3746 | |
3747 | chptrb = strchr(second, '='); |
3748 | if (chptrb) |
3749 | chptrb += 1; |
3750 | |
3751 | if (!chptra && !chptrb) |
3752 | return 0; |
3753 | else if (!chptra) |
3754 | return *chptrb - 0; |
3755 | else if (!chptrb) |
3756 | return 0 - *chptra; |
3757 | else |
3758 | return strcmp(chptra, chptrb); |
3759 | } |
3760 | |
3761 | int updateActualImage(struct grubConfig *cfg, const char *image, |
3762 | const char *prefix, const char *addArgs, |
3763 | const char *removeArgs, int multibootArgs) |
3764 | { |
3765 | struct singleEntry *entry; |
3766 | struct singleLine *line, *rootLine; |
3767 | int index = 0; |
3768 | int i, k; |
3769 | const char **newArgs, **oldArgs; |
3770 | const char **arg; |
3771 | int useKernelArgs, useRoot; |
3772 | int firstElement; |
3773 | int *usedElements; |
3774 | int doreplace; |
3775 | |
3776 | if (!image) |
3777 | return 0; |
3778 | |
3779 | if (!addArgs) { |
3780 | newArgs = malloc(sizeof(*newArgs)); |
3781 | *newArgs = NULL; |
3782 | } else { |
3783 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { |
3784 | fprintf(stderr, |
3785 | _("grubby: error separating arguments '%s'\n"), |
3786 | addArgs); |
3787 | return 1; |
3788 | } |
3789 | } |
3790 | |
3791 | if (!removeArgs) { |
3792 | oldArgs = malloc(sizeof(*oldArgs)); |
3793 | *oldArgs = NULL; |
3794 | } else { |
3795 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { |
3796 | fprintf(stderr, |
3797 | _("grubby: error separating arguments '%s'\n"), |
3798 | removeArgs); |
3799 | free(newArgs); |
3800 | return 1; |
3801 | } |
3802 | } |
3803 | |
3804 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3805 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); |
3806 | |
3807 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3808 | && !multibootArgs); |
3809 | |
3810 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3811 | |
3812 | if (multibootArgs && !entry->multiboot) |
3813 | continue; |
3814 | |
3815 | /* Determine where to put the args. If this config supports |
3816 | * LT_KERNELARGS, use that. Otherwise use |
3817 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. |
3818 | */ |
3819 | if (useKernelArgs) { |
3820 | line = getLineByType(LT_KERNELARGS, entry->lines); |
3821 | if (!line) { |
3822 | /* no LT_KERNELARGS, need to add it */ |
3823 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, |
3824 | cfg->secondaryIndent, NULL); |
3825 | } |
3826 | firstElement = 1; |
3827 | |
3828 | } else if (multibootArgs) { |
3829 | line = getLineByType(LT_HYPER, entry->lines); |
3830 | if (!line) { |
3831 | /* a multiboot entry without LT_HYPER? */ |
3832 | continue; |
3833 | } |
3834 | firstElement = 2; |
3835 | |
3836 | } else { |
3837 | line = |
3838 | getLineByType(LT_KERNEL | LT_MBMODULE | |
3839 | LT_KERNEL_EFI | LT_KERNEL_16, |
3840 | entry->lines); |
3841 | if (!line) { |
3842 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ |
3843 | continue; |
3844 | } |
3845 | firstElement = 2; |
3846 | } |
3847 | |
3848 | /* handle the elilo case which does: |
3849 | * append="hypervisor args -- kernel args" |
3850 | */ |
3851 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { |
3852 | /* this is a multiboot entry, make sure there's |
3853 | * -- on the args line |
3854 | */ |
3855 | for (i = firstElement; i < line->numElements; i++) { |
3856 | if (!strcmp(line->elements[i].item, "--")) |
3857 | break; |
3858 | } |
3859 | if (i == line->numElements) { |
3860 | /* assume all existing args are kernel args, |
3861 | * prepend -- to make it official |
3862 | */ |
3863 | insertElement(line, "--", firstElement, |
3864 | cfg->cfi); |
3865 | i = firstElement; |
3866 | } |
3867 | if (!multibootArgs) { |
3868 | /* kernel args start after the -- */ |
3869 | firstElement = i + 1; |
3870 | } |
3871 | } else if (cfg->cfi->mbConcatArgs) { |
3872 | /* this is a non-multiboot entry, remove hyper args */ |
3873 | for (i = firstElement; i < line->numElements; i++) { |
3874 | if (!strcmp(line->elements[i].item, "--")) |
3875 | break; |
3876 | } |
3877 | if (i < line->numElements) { |
3878 | /* remove args up to -- */ |
3879 | while (strcmp |
3880 | (line->elements[firstElement].item, |
3881 | "--")) |
3882 | removeElement(line, firstElement); |
3883 | /* remove -- */ |
3884 | removeElement(line, firstElement); |
3885 | } |
3886 | } |
3887 | |
3888 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3889 | |
3890 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3891 | |
3892 | doreplace = 1; |
3893 | for (i = firstElement; i < line->numElements; i++) { |
3894 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3895 | !strcmp(line->elements[i].item, "--")) { |
3896 | /* reached the end of hyper args, insert here */ |
3897 | doreplace = 0; |
3898 | break; |
3899 | } |
3900 | if (usedElements[i]) |
3901 | continue; |
3902 | if (!argNameMatch(line->elements[i].item, *arg)) { |
3903 | usedElements[i] = 1; |
3904 | break; |
3905 | } |
3906 | } |
3907 | |
3908 | if (i < line->numElements && doreplace) { |
3909 | /* direct replacement */ |
3910 | free(line->elements[i].item); |
3911 | line->elements[i].item = strdup(*arg); |
3912 | |
3913 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3914 | /* root= replacement */ |
3915 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3916 | if (rootLine) { |
3917 | free(rootLine->elements[1].item); |
3918 | rootLine->elements[1].item = |
3919 | strdup(*arg + 5); |
3920 | } else { |
3921 | rootLine = |
3922 | addLine(entry, cfg->cfi, LT_ROOT, |
3923 | cfg->secondaryIndent, |
3924 | *arg + 5); |
3925 | } |
3926 | } |
3927 | |
3928 | else { |
3929 | /* insert/append */ |
3930 | insertElement(line, *arg, i, cfg->cfi); |
3931 | usedElements = |
3932 | realloc(usedElements, |
3933 | line->numElements * |
3934 | sizeof(*usedElements)); |
3935 | memmove(&usedElements[i + 1], &usedElements[i], |
3936 | line->numElements - i - 1); |
3937 | usedElements[i] = 1; |
3938 | |
3939 | /* if we updated a root= here even though |
3940 | * there is a LT_ROOT available we need to |
3941 | * remove the LT_ROOT entry (this will happen |
3942 | * if we switch from a device to a label) */ |
3943 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3944 | rootLine = |
3945 | getLineByType(LT_ROOT, |
3946 | entry->lines); |
3947 | if (rootLine) |
3948 | removeLine(entry, rootLine); |
3949 | } |
3950 | } |
3951 | } |
3952 | |
3953 | free(usedElements); |
3954 | |
3955 | for (arg = oldArgs; *arg; arg++) { |
3956 | for (i = firstElement; i < line->numElements; i++) { |
3957 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3958 | !strcmp(line->elements[i].item, "--")) |
3959 | /* reached the end of hyper args, stop here */ |
3960 | break; |
3961 | if (!argNameMatch(line->elements[i].item, *arg)) { |
3962 | if (!argHasValue(*arg) || |
3963 | !argValueMatch(line->elements[i].item, *arg)) { |
3964 | removeElement(line, i); |
3965 | break; |
3966 | } |
3967 | } |
3968 | } |
3969 | /* handle removing LT_ROOT line too */ |
3970 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3971 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3972 | if (rootLine) |
3973 | removeLine(entry, rootLine); |
3974 | } |
3975 | } |
3976 | |
3977 | if (line->numElements == 1) { |
3978 | /* don't need the line at all (note it has to be a |
3979 | LT_KERNELARGS for this to happen */ |
3980 | removeLine(entry, line); |
3981 | } |
3982 | } |
3983 | |
3984 | free(newArgs); |
3985 | free(oldArgs); |
3986 | |
3987 | return 0; |
3988 | } |
3989 | |
3990 | int updateImage(struct grubConfig *cfg, const char *image, |
3991 | const char *prefix, const char *addArgs, |
3992 | const char *removeArgs, |
3993 | const char *addMBArgs, const char *removeMBArgs) |
3994 | { |
3995 | int rc = 0; |
3996 | |
3997 | if (!image) |
3998 | return rc; |
3999 | |
4000 | /* update the main args first... */ |
4001 | if (addArgs || removeArgs) |
4002 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, |
4003 | 0); |
4004 | if (rc) |
4005 | return rc; |
4006 | |
4007 | /* and now any multiboot args */ |
4008 | if (addMBArgs || removeMBArgs) |
4009 | rc = updateActualImage(cfg, image, prefix, addMBArgs, |
4010 | removeMBArgs, 1); |
4011 | return rc; |
4012 | } |
4013 | |
4014 | int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel, |
4015 | const char *image, const char *prefix, const char *initrd, |
4016 | const char *title) |
4017 | { |
4018 | struct singleEntry *entry; |
4019 | struct singleLine *line, *kernelLine, *endLine = NULL; |
4020 | int index = 0; |
4021 | |
4022 | if (!image) |
4023 | return 0; |
4024 | |
4025 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
4026 | kernelLine = getLineByType(LT_MBMODULE, entry->lines); |
4027 | if (!kernelLine) |
4028 | continue; |
4029 | |
4030 | /* if title is supplied, the entry's title must match it. */ |
4031 | if (title) { |
4032 | char *linetitle; |
4033 | |
4034 | line = |
4035 | getLineByType(LT_TITLE | LT_MENUENTRY, |
4036 | entry->lines); |
4037 | if (!line) |
4038 | continue; |
4039 | |
4040 | linetitle = extractTitle(cfg, line); |
4041 | if (!linetitle) |
4042 | continue; |
4043 | if (strcmp(title, linetitle)) { |
4044 | free(linetitle); |
4045 | continue; |
4046 | } |
4047 | free(linetitle); |
4048 | } |
4049 | |
4050 | if (prefix) { |
4051 | int prefixLen = strlen(prefix); |
4052 | if (!strncmp(initrd, prefix, prefixLen)) |
4053 | initrd += prefixLen; |
4054 | } |
4055 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
4056 | if (endLine) |
4057 | removeLine(entry, endLine); |
4058 | line = |
4059 | addLine(entry, cfg->cfi, |
4060 | preferredLineType(LT_MBMODULE, cfg->cfi), |
4061 | kernelLine->indent, initrd); |
4062 | if (!line) |
4063 | return 1; |
4064 | if (endLine) { |
4065 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
4066 | if (!line) |
4067 | return 1; |
4068 | } |
4069 | |
4070 | break; |
4071 | } |
4072 | |
4073 | return 0; |
4074 | } |
4075 | |
4076 | int updateInitrd(struct grubConfig *cfg, const char *image, |
4077 | const char *prefix, const char *initrd, const char *title) |
4078 | { |
4079 | struct singleEntry *entry; |
4080 | struct singleLine *line, *kernelLine, *endLine = NULL; |
4081 | int index = 0; |
4082 | |
4083 | if (!image) |
4084 | return 0; |
4085 | |
4086 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
4087 | kernelLine = |
4088 | getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16, |
4089 | entry->lines); |
4090 | if (!kernelLine) |
4091 | continue; |
4092 | |
4093 | /* if title is supplied, the entry's title must match it. */ |
4094 | if (title) { |
4095 | char *linetitle; |
4096 | |
4097 | line = |
4098 | getLineByType(LT_TITLE | LT_MENUENTRY, |
4099 | entry->lines); |
4100 | if (!line) |
4101 | continue; |
4102 | |
4103 | linetitle = extractTitle(cfg, line); |
4104 | if (!linetitle) |
4105 | continue; |
4106 | if (strcmp(title, linetitle)) { |
4107 | free(linetitle); |
4108 | continue; |
4109 | } |
4110 | free(linetitle); |
4111 | } |
4112 | |
4113 | line = |
4114 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
4115 | entry->lines); |
4116 | if (line) |
4117 | removeLine(entry, line); |
4118 | if (prefix) { |
4119 | int prefixLen = strlen(prefix); |
4120 | if (!strncmp(initrd, prefix, prefixLen)) |
4121 | initrd += prefixLen; |
4122 | } |
4123 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
4124 | if (endLine) |
4125 | removeLine(entry, endLine); |
4126 | enum lineType_e lt; |
4127 | switch (kernelLine->type) { |
4128 | case LT_KERNEL: |
4129 | lt = LT_INITRD; |
4130 | break; |
4131 | case LT_KERNEL_EFI: |
4132 | lt = LT_INITRD_EFI; |
4133 | break; |
4134 | case LT_KERNEL_16: |
4135 | lt = LT_INITRD_16; |
4136 | break; |
4137 | default: |
4138 | lt = preferredLineType(LT_INITRD, cfg->cfi); |
4139 | } |
4140 | line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd); |
4141 | if (!line) |
4142 | return 1; |
4143 | if (endLine) { |
4144 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
4145 | if (!line) |
4146 | return 1; |
4147 | } |
4148 | |
4149 | break; |
4150 | } |
4151 | |
4152 | return 0; |
4153 | } |
4154 | |
4155 | int checkDeviceBootloader(const char *device, const unsigned char *boot) |
4156 | { |
4157 | int fd; |
4158 | unsigned char bootSect[512]; |
4159 | int offset; |
4160 | |
4161 | fd = open(device, O_RDONLY); |
4162 | if (fd < 0) { |
4163 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
4164 | device, strerror(errno)); |
4165 | return 1; |
4166 | } |
4167 | |
4168 | if (read(fd, bootSect, 512) != 512) { |
4169 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4170 | device, strerror(errno)); |
4171 | return 1; |
4172 | } |
4173 | close(fd); |
4174 | |
4175 | /* first three bytes should match, a jmp short should be in there */ |
4176 | if (memcmp(boot, bootSect, 3)) |
4177 | return 0; |
4178 | |
4179 | if (boot[1] == JMP_SHORT_OPCODE) { |
4180 | offset = boot[2] + 2; |
4181 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { |
4182 | offset = (boot[3] << 8) + boot[2] + 2; |
4183 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
4184 | offset = boot[1] + 2; |
4185 | /* |
4186 | * it looks like grub, when copying stage1 into the mbr, |
4187 | * patches stage1 right after the JMP location, replacing |
4188 | * other instructions such as JMPs for NOOPs. So, relax the |
4189 | * check a little bit by skipping those different bytes. |
4190 | */ |
4191 | if ((bootSect[offset + 1] == NOOP_OPCODE) |
4192 | && (bootSect[offset + 2] == NOOP_OPCODE)) { |
4193 | offset = offset + 3; |
4194 | } |
4195 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
4196 | offset = (boot[2] << 8) + boot[1] + 2; |
4197 | } else { |
4198 | return 0; |
4199 | } |
4200 | |
4201 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) |
4202 | return 0; |
4203 | |
4204 | return 2; |
4205 | } |
4206 | |
4207 | int checkLiloOnRaid(char *mdDev, const unsigned char *boot) |
4208 | { |
4209 | int fd; |
4210 | char buf[65536]; |
4211 | char *end; |
4212 | char *chptr; |
4213 | char *chptr2; |
4214 | int rc; |
4215 | |
4216 | /* it's on raid; we need to parse /proc/mdstat and check all of the |
4217 | *raw* devices listed in there */ |
4218 | |
4219 | if (!strncmp(mdDev, "/dev/", 5)) |
4220 | mdDev += 5; |
4221 | |
4222 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { |
4223 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), |
4224 | strerror(errno)); |
4225 | return 2; |
4226 | } |
4227 | |
4228 | rc = read(fd, buf, sizeof(buf) - 1); |
4229 | if (rc < 0 || rc == (sizeof(buf) - 1)) { |
4230 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), |
4231 | strerror(errno)); |
4232 | close(fd); |
4233 | return 2; |
4234 | } |
4235 | close(fd); |
4236 | buf[rc] = '\0'; |
4237 | |
4238 | chptr = buf; |
4239 | while (*chptr) { |
4240 | end = strchr(chptr, '\n'); |
4241 | if (!end) |
4242 | break; |
4243 | *end = '\0'; |
4244 | |
4245 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && |
4246 | chptr[strlen(mdDev)] == ' ') { |
4247 | |
4248 | /* found the device */ |
4249 | while (*chptr && *chptr != ':') |
4250 | chptr++; |
4251 | chptr++; |
4252 | while (*chptr && isspace(*chptr)) |
4253 | chptr++; |
4254 | |
4255 | /* skip the "active" bit */ |
4256 | while (*chptr && !isspace(*chptr)) |
4257 | chptr++; |
4258 | while (*chptr && isspace(*chptr)) |
4259 | chptr++; |
4260 | |
4261 | /* skip the raid level */ |
4262 | while (*chptr && !isspace(*chptr)) |
4263 | chptr++; |
4264 | while (*chptr && isspace(*chptr)) |
4265 | chptr++; |
4266 | |
4267 | /* everything else is partition stuff */ |
4268 | while (*chptr) { |
4269 | chptr2 = chptr; |
4270 | while (*chptr2 && *chptr2 != '[') |
4271 | chptr2++; |
4272 | if (!*chptr2) |
4273 | break; |
4274 | |
4275 | /* yank off the numbers at the end */ |
4276 | chptr2--; |
4277 | while (isdigit(*chptr2) && chptr2 > chptr) |
4278 | chptr2--; |
4279 | chptr2++; |
4280 | *chptr2 = '\0'; |
4281 | |
4282 | /* Better, now we need the /dev/ back. We're |
4283 | * done with everything before this point, so |
4284 | * we can just put the /dev/ part there. |
4285 | * There will always be room. */ |
4286 | memcpy(chptr - 5, "/dev/", 5); |
4287 | rc = checkDeviceBootloader(chptr - 5, boot); |
4288 | if (rc != 2) { |
4289 | return rc; |
4290 | } |
4291 | |
4292 | chptr = chptr2 + 1; |
4293 | /* skip the [11] bit */ |
4294 | while (*chptr && !isspace(*chptr)) |
4295 | chptr++; |
4296 | /* and move to the next one */ |
4297 | while (*chptr && isspace(*chptr)) |
4298 | chptr++; |
4299 | } |
4300 | |
4301 | /* we're good to go */ |
4302 | return 2; |
4303 | } |
4304 | |
4305 | chptr = end + 1; |
4306 | } |
4307 | |
4308 | fprintf(stderr, |
4309 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), |
4310 | mdDev); |
4311 | return 0; |
4312 | } |
4313 | |
4314 | int checkForLilo(struct grubConfig *config) |
4315 | { |
4316 | int fd; |
4317 | unsigned char boot[512]; |
4318 | struct singleLine *line; |
4319 | |
4320 | for (line = config->theLines; line; line = line->next) |
4321 | if (line->type == LT_BOOT) |
4322 | break; |
4323 | |
4324 | if (!line) { |
4325 | fprintf(stderr, |
4326 | _ |
4327 | ("grubby: no boot line found in lilo configuration\n")); |
4328 | return 1; |
4329 | } |
4330 | |
4331 | if (line->numElements != 2) |
4332 | return 1; |
4333 | |
4334 | fd = open("/boot/boot.b", O_RDONLY); |
4335 | if (fd < 0) { |
4336 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
4337 | "/boot/boot.b", strerror(errno)); |
4338 | return 1; |
4339 | } |
4340 | |
4341 | if (read(fd, boot, 512) != 512) { |
4342 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4343 | "/boot/boot.b", strerror(errno)); |
4344 | return 1; |
4345 | } |
4346 | close(fd); |
4347 | |
4348 | if (!strncmp("/dev/md", line->elements[1].item, 7)) |
4349 | return checkLiloOnRaid(line->elements[1].item, boot); |
4350 | |
4351 | return checkDeviceBootloader(line->elements[1].item, boot); |
4352 | } |
4353 | |
4354 | int checkForGrub2(struct grubConfig *config) |
4355 | { |
4356 | if (!access("/etc/grub.d/", R_OK)) |
4357 | return 2; |
4358 | |
4359 | return 1; |
4360 | } |
4361 | |
4362 | int checkForGrub(struct grubConfig *config) |
4363 | { |
4364 | int fd; |
4365 | unsigned char bootSect[512]; |
4366 | char *boot; |
4367 | int onSuse = isSuseSystem(); |
4368 | |
4369 | if (onSuse) { |
4370 | if (parseSuseGrubConf(NULL, &boot)) |
4371 | return 0; |
4372 | } else { |
4373 | if (parseSysconfigGrub(NULL, &boot)) |
4374 | return 0; |
4375 | } |
4376 | |
4377 | /* assume grub is not installed -- not an error condition */ |
4378 | if (!boot) |
4379 | return 0; |
4380 | |
4381 | fd = open("/boot/grub/stage1", O_RDONLY); |
4382 | if (fd < 0) |
4383 | /* this doesn't exist if grub hasn't been installed */ |
4384 | return 0; |
4385 | |
4386 | if (read(fd, bootSect, 512) != 512) { |
4387 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4388 | "/boot/grub/stage1", strerror(errno)); |
4389 | close(fd); |
4390 | return 1; |
4391 | } |
4392 | close(fd); |
4393 | |
4394 | /* The more elaborate checks do not work on SuSE. The checks done |
4395 | * seem to be reasonble (at least for now), so just return success |
4396 | */ |
4397 | if (onSuse) |
4398 | return 2; |
4399 | |
4400 | return checkDeviceBootloader(boot, bootSect); |
4401 | } |
4402 | |
4403 | int checkForExtLinux(struct grubConfig *config) |
4404 | { |
4405 | int fd; |
4406 | unsigned char bootSect[512]; |
4407 | char *boot; |
4408 | char executable[] = "/boot/extlinux/extlinux"; |
4409 | |
4410 | printf("entered: checkForExtLinux()\n"); |
4411 | |
4412 | if (parseSysconfigGrub(NULL, &boot)) |
4413 | return 0; |
4414 | |
4415 | /* assume grub is not installed -- not an error condition */ |
4416 | if (!boot) |
4417 | return 0; |
4418 | |
4419 | fd = open(executable, O_RDONLY); |
4420 | if (fd < 0) |
4421 | /* this doesn't exist if grub hasn't been installed */ |
4422 | return 0; |
4423 | |
4424 | if (read(fd, bootSect, 512) != 512) { |
4425 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4426 | executable, strerror(errno)); |
4427 | return 1; |
4428 | } |
4429 | close(fd); |
4430 | |
4431 | return checkDeviceBootloader(boot, bootSect); |
4432 | } |
4433 | |
4434 | int checkForYaboot(struct grubConfig *config) |
4435 | { |
4436 | /* |
4437 | * This is a simplistic check that we consider good enough for own puporses |
4438 | * |
4439 | * If we were to properly check if yaboot is *installed* we'd need to: |
4440 | * 1) get the system boot device (LT_BOOT) |
4441 | * 2) considering it's a raw filesystem, check if the yaboot binary matches |
4442 | * the content on the boot device |
4443 | * 3) if not, copy the binary to a temporary file and run "addnote" on it |
4444 | * 4) check again if binary and boot device contents match |
4445 | */ |
4446 | if (!access("/etc/yaboot.conf", R_OK)) |
4447 | return 2; |
4448 | |
4449 | return 1; |
4450 | } |
4451 | |
4452 | int checkForElilo(struct grubConfig *config) |
4453 | { |
4454 | if (!access("/etc/elilo.conf", R_OK)) |
4455 | return 2; |
4456 | |
4457 | return 1; |
4458 | } |
4459 | |
4460 | static size_t getRootSpecifier(const char *str) |
4461 | { |
4462 | size_t rs = 0; |
4463 | |
4464 | if (*str == '(') { |
4465 | for (; str[rs] != ')' && !isspace(str[rs]); rs++) { |
4466 | if (!str[rs]) |
4467 | return rs; |
4468 | } |
4469 | rs++; |
4470 | } |
4471 | |
4472 | return rs + subvolPrefix(str + rs); |
4473 | } |
4474 | |
4475 | static char *getInitrdVal(struct grubConfig *config, |
4476 | const char *prefix, struct singleLine *tmplLine, |
4477 | const char *newKernelInitrd, |
4478 | const char **extraInitrds, int extraInitrdCount) |
4479 | { |
4480 | char *initrdVal, *end; |
4481 | int i; |
4482 | size_t totalSize; |
4483 | size_t prefixLen; |
4484 | char separatorChar; |
4485 | |
4486 | prefixLen = strlen(prefix); |
4487 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ; |
4488 | |
4489 | for (i = 0; i < extraInitrdCount; i++) { |
4490 | totalSize += sizeof(separatorChar); |
4491 | totalSize += strlen(extraInitrds[i]) - prefixLen; |
4492 | } |
4493 | |
4494 | initrdVal = end = malloc(totalSize); |
4495 | |
4496 | end = stpcpy(end, newKernelInitrd + prefixLen); |
4497 | |
4498 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; |
4499 | for (i = 0; i < extraInitrdCount; i++) { |
4500 | const char *extraInitrd; |
4501 | int j; |
4502 | |
4503 | extraInitrd = extraInitrds[i] + prefixLen; |
4504 | /* Don't add entries that are already there */ |
4505 | if (tmplLine != NULL) { |
4506 | for (j = 2; j < tmplLine->numElements; j++) |
4507 | if (strcmp |
4508 | (extraInitrd, |
4509 | tmplLine->elements[j].item) == 0) |
4510 | break; |
4511 | |
4512 | if (j != tmplLine->numElements) |
4513 | continue; |
4514 | } |
4515 | |
4516 | *end++ = separatorChar; |
4517 | end = stpcpy(end, extraInitrd); |
4518 | } |
4519 | |
4520 | return initrdVal; |
4521 | } |
4522 | |
4523 | int addNewKernel(struct grubConfig *config, struct singleEntry *template, |
4524 | const char *prefix, |
4525 | const char *newKernelPath, const char *newKernelTitle, |
4526 | const char *newKernelArgs, const char *newKernelInitrd, |
4527 | const char **extraInitrds, int extraInitrdCount, |
4528 | const char *newMBKernel, const char *newMBKernelArgs, |
4529 | const char *newDevTreePath, int newIndex) |
4530 | { |
4531 | struct singleEntry *new, *entry, *prev = NULL; |
4532 | struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL; |
4533 | int needs; |
4534 | char *indexs; |
4535 | char *chptr; |
4536 | int rc; |
4537 | |
4538 | if (!newKernelPath) |
4539 | return 0; |
4540 | |
4541 | rc = asprintf(&indexs, "%d", newIndex); |
4542 | if (rc < 0) |
4543 | return 1; |
4544 | |
4545 | /* if the newKernelTitle is too long silently munge it into something |
4546 | * we can live with. truncating is first check, then we'll just mess with |
4547 | * it until it looks better */ |
4548 | if (config->cfi->maxTitleLength && |
4549 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { |
4550 | char *buf = alloca(config->cfi->maxTitleLength + 7); |
4551 | char *numBuf = alloca(config->cfi->maxTitleLength + 1); |
4552 | int i = 1; |
4553 | |
4554 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, |
4555 | newKernelTitle); |
4556 | while (findEntryByPath(config, buf, NULL, NULL)) { |
4557 | sprintf(numBuf, "%d", i++); |
4558 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); |
4559 | } |
4560 | |
4561 | newKernelTitle = buf + 6; |
4562 | } |
4563 | |
4564 | new = malloc(sizeof(*new)); |
4565 | new->skip = 0; |
4566 | new->multiboot = 0; |
4567 | new->lines = NULL; |
4568 | entry = config->entries; |
4569 | for (unsigned int i = 0; i < newIndex; i++) { |
4570 | if (!entry) |
4571 | break; |
4572 | prev = entry; |
4573 | entry = entry->next; |
4574 | } |
4575 | new->next = entry; |
4576 | |
4577 | if (prev) |
4578 | prev->next = new; |
4579 | else |
4580 | config->entries = new; |
4581 | |
4582 | /* copy/update from the template */ |
4583 | needs = NEED_KERNEL | NEED_TITLE; |
4584 | if (newKernelInitrd) |
4585 | needs |= NEED_INITRD; |
4586 | if (newMBKernel) { |
4587 | needs |= NEED_MB; |
4588 | new->multiboot = 1; |
4589 | } |
4590 | if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi)) |
4591 | needs |= NEED_DEVTREE; |
4592 | |
4593 | if (template) { |
4594 | for (masterLine = template->lines; |
4595 | masterLine && (tmplLine = lineDup(masterLine)); |
4596 | lineFree(tmplLine), masterLine = masterLine->next) { |
4597 | dbgPrintf("addNewKernel processing %d\n", |
4598 | tmplLine->type); |
4599 | |
4600 | /* skip comments */ |
4601 | chptr = tmplLine->indent; |
4602 | while (*chptr && isspace(*chptr)) |
4603 | chptr++; |
4604 | if (*chptr == '#') |
4605 | continue; |
4606 | |
4607 | if (iskernel(tmplLine->type) |
4608 | && tmplLine->numElements >= 2) { |
4609 | if (!template->multiboot && (needs & NEED_MB)) { |
4610 | /* it's not a multiboot template and |
4611 | * this is the kernel line. Try to |
4612 | * be intelligent about inserting the |
4613 | * hypervisor at the same time. |
4614 | */ |
4615 | if (config->cfi->mbHyperFirst) { |
4616 | /* insert the hypervisor first */ |
4617 | newLine = |
4618 | addLine(new, config->cfi, |
4619 | LT_HYPER, |
4620 | tmplLine->indent, |
4621 | newMBKernel + |
4622 | strlen(prefix)); |
4623 | /* set up for adding the |
4624 | * kernel line */ |
4625 | free(tmplLine->indent); |
4626 | tmplLine->indent = |
4627 | strdup(config-> |
4628 | secondaryIndent); |
4629 | needs &= ~NEED_MB; |
4630 | } |
4631 | if (needs & NEED_KERNEL) { |
4632 | /* use addLineTmpl to |
4633 | * preserve line elements, |
4634 | * otherwise we could just |
4635 | * call addLine. |
4636 | * Unfortunately this means |
4637 | * making some changes to the |
4638 | * template such as the |
4639 | * indent change above and |
4640 | * the type change below. |
4641 | */ |
4642 | struct keywordTypes *mbm_kw = |
4643 | getKeywordByType |
4644 | (LT_MBMODULE, config->cfi); |
4645 | if (mbm_kw) { |
4646 | tmplLine->type = |
4647 | LT_MBMODULE; |
4648 | free(tmplLine-> |
4649 | elements[0].item); |
4650 | tmplLine->elements[0]. |
4651 | item = |
4652 | strdup(mbm_kw->key); |
4653 | } |
4654 | newLine = |
4655 | addLineTmpl(new, tmplLine, |
4656 | newLine, |
4657 | newKernelPath + |
4658 | strlen(prefix), |
4659 | config->cfi); |
4660 | needs &= ~NEED_KERNEL; |
4661 | } |
4662 | if (needs & NEED_MB) { /* !mbHyperFirst */ |
4663 | newLine = |
4664 | addLine(new, config->cfi, |
4665 | LT_HYPER, |
4666 | config-> |
4667 | secondaryIndent, |
4668 | newMBKernel + |
4669 | strlen(prefix)); |
4670 | needs &= ~NEED_MB; |
4671 | } |
4672 | } else if (needs & NEED_KERNEL) { |
4673 | newLine = |
4674 | addLineTmpl(new, tmplLine, newLine, |
4675 | newKernelPath + |
4676 | strlen(prefix), |
4677 | config->cfi); |
4678 | needs &= ~NEED_KERNEL; |
4679 | } |
4680 | |
4681 | } else if (tmplLine->type == LT_HYPER && |
4682 | tmplLine->numElements >= 2) { |
4683 | if (needs & NEED_MB) { |
4684 | newLine = |
4685 | addLineTmpl(new, tmplLine, newLine, |
4686 | newMBKernel + |
4687 | strlen(prefix), |
4688 | config->cfi); |
4689 | needs &= ~NEED_MB; |
4690 | } |
4691 | |
4692 | } else if (tmplLine->type == LT_MBMODULE && |
4693 | tmplLine->numElements >= 2) { |
4694 | if (new->multiboot) { |
4695 | if (needs & NEED_KERNEL) { |
4696 | newLine = |
4697 | addLineTmpl(new, tmplLine, |
4698 | newLine, |
4699 | newKernelPath + |
4700 | strlen(prefix), |
4701 | config->cfi); |
4702 | needs &= ~NEED_KERNEL; |
4703 | } else if (config->cfi->mbInitRdIsModule |
4704 | && (needs & NEED_INITRD)) { |
4705 | char *initrdVal; |
4706 | initrdVal = |
4707 | getInitrdVal(config, prefix, |
4708 | tmplLine, |
4709 | newKernelInitrd, |
4710 | extraInitrds, |
4711 | extraInitrdCount); |
4712 | newLine = |
4713 | addLineTmpl(new, tmplLine, |
4714 | newLine, |
4715 | initrdVal, |
4716 | config->cfi); |
4717 | free(initrdVal); |
4718 | needs &= ~NEED_INITRD; |
4719 | } |
4720 | } else if (needs & NEED_KERNEL) { |
4721 | /* template is multi but new is not, |
4722 | * insert the kernel in the first |
4723 | * module slot |
4724 | */ |
4725 | tmplLine->type = |
4726 | preferredLineType(LT_KERNEL, |
4727 | config->cfi); |
4728 | free(tmplLine->elements[0].item); |
4729 | tmplLine->elements[0].item = |
4730 | strdup(getKeywordByType |
4731 | (tmplLine->type, |
4732 | config->cfi)->key); |
4733 | newLine = |
4734 | addLineTmpl(new, tmplLine, newLine, |
4735 | newKernelPath + |
4736 | strlen(prefix), |
4737 | config->cfi); |
4738 | needs &= ~NEED_KERNEL; |
4739 | } else if (needs & NEED_INITRD) { |
4740 | char *initrdVal; |
4741 | /* template is multi but new is not, |
4742 | * insert the initrd in the second |
4743 | * module slot |
4744 | */ |
4745 | tmplLine->type = |
4746 | preferredLineType(LT_INITRD, |
4747 | config->cfi); |
4748 | free(tmplLine->elements[0].item); |
4749 | tmplLine->elements[0].item = |
4750 | strdup(getKeywordByType |
4751 | (tmplLine->type, |
4752 | config->cfi)->key); |
4753 | initrdVal = |
4754 | getInitrdVal(config, prefix, |
4755 | tmplLine, |
4756 | newKernelInitrd, |
4757 | extraInitrds, |
4758 | extraInitrdCount); |
4759 | newLine = |
4760 | addLineTmpl(new, tmplLine, newLine, |
4761 | initrdVal, config->cfi); |
4762 | free(initrdVal); |
4763 | needs &= ~NEED_INITRD; |
4764 | } |
4765 | |
4766 | } else if (isinitrd(tmplLine->type) |
4767 | && tmplLine->numElements >= 2) { |
4768 | if (needs & NEED_INITRD && new->multiboot |
4769 | && !template->multiboot |
4770 | && config->cfi->mbInitRdIsModule) { |
4771 | /* make sure we don't insert the |
4772 | * module initrd before the module |
4773 | * kernel... if we don't do it here, |
4774 | * it will be inserted following the |
4775 | * template. |
4776 | */ |
4777 | if (!needs & NEED_KERNEL) { |
4778 | char *initrdVal; |
4779 | |
4780 | initrdVal = |
4781 | getInitrdVal(config, prefix, |
4782 | tmplLine, |
4783 | newKernelInitrd, |
4784 | extraInitrds, |
4785 | extraInitrdCount); |
4786 | newLine = |
4787 | addLine(new, config->cfi, |
4788 | LT_MBMODULE, |
4789 | config-> |
4790 | secondaryIndent, |
4791 | initrdVal); |
4792 | free(initrdVal); |
4793 | needs &= ~NEED_INITRD; |
4794 | } |
4795 | } else if (needs & NEED_INITRD) { |
4796 | char *initrdVal; |
4797 | initrdVal = |
4798 | getInitrdVal(config, prefix, |
4799 | tmplLine, |
4800 | newKernelInitrd, |
4801 | extraInitrds, |
4802 | extraInitrdCount); |
4803 | newLine = |
4804 | addLineTmpl(new, tmplLine, newLine, |
4805 | initrdVal, config->cfi); |
4806 | free(initrdVal); |
4807 | needs &= ~NEED_INITRD; |
4808 | } |
4809 | |
4810 | } else if (tmplLine->type == LT_MENUENTRY && |
4811 | (needs & NEED_TITLE)) { |
4812 | requote(tmplLine, config->cfi); |
4813 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4814 | strcpy(nkt, "'"); |
4815 | strcat(nkt, newKernelTitle); |
4816 | strcat(nkt, "'"); |
4817 | newLine = |
4818 | addLineTmpl(new, tmplLine, newLine, nkt, |
4819 | config->cfi); |
4820 | free(nkt); |
4821 | needs &= ~NEED_TITLE; |
4822 | } else if (tmplLine->type == LT_TITLE && |
4823 | (needs & NEED_TITLE)) { |
4824 | if (tmplLine->numElements >= 2) { |
4825 | newLine = |
4826 | addLineTmpl(new, tmplLine, newLine, |
4827 | newKernelTitle, |
4828 | config->cfi); |
4829 | needs &= ~NEED_TITLE; |
4830 | } else if (tmplLine->numElements == 1 && |
4831 | config->cfi->titleBracketed) { |
4832 | /* addLineTmpl doesn't handle |
4833 | * titleBracketed */ |
4834 | newLine = |
4835 | addLine(new, config->cfi, LT_TITLE, |
4836 | tmplLine->indent, |
4837 | newKernelTitle); |
4838 | needs &= ~NEED_TITLE; |
4839 | } |
4840 | } else if (tmplLine->type == LT_ECHO) { |
4841 | requote(tmplLine, config->cfi); |
4842 | static const char *prefix = "'Loading "; |
4843 | if (tmplLine->numElements > 1 && |
4844 | strstr(tmplLine->elements[1].item, prefix) |
4845 | && masterLine->next |
4846 | && iskernel(masterLine->next->type)) { |
4847 | char *newTitle = |
4848 | malloc(strlen(prefix) + |
4849 | strlen(newKernelTitle) + 2); |
4850 | |
4851 | strcpy(newTitle, prefix); |
4852 | strcat(newTitle, newKernelTitle); |
4853 | strcat(newTitle, "'"); |
4854 | newLine = |
4855 | addLine(new, config->cfi, LT_ECHO, |
4856 | tmplLine->indent, newTitle); |
4857 | free(newTitle); |
4858 | } else { |
4859 | /* pass through other lines from the |
4860 | * template */ |
4861 | newLine = |
4862 | addLineTmpl(new, tmplLine, newLine, |
4863 | NULL, config->cfi); |
4864 | } |
4865 | } else if (tmplLine->type == LT_DEVTREE && |
4866 | tmplLine->numElements == 2 |
4867 | && newDevTreePath) { |
4868 | newLine = |
4869 | addLineTmpl(new, tmplLine, newLine, |
4870 | newDevTreePath + strlen(prefix), |
4871 | config->cfi); |
4872 | needs &= ~NEED_DEVTREE; |
4873 | } else if (tmplLine->type == LT_ENTRY_END |
4874 | && needs & NEED_DEVTREE) { |
4875 | const char *ndtp = newDevTreePath; |
4876 | if (!strncmp |
4877 | (newDevTreePath, prefix, strlen(prefix))) |
4878 | ndtp += strlen(prefix); |
4879 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4880 | config->secondaryIndent, |
4881 | ndtp); |
4882 | needs &= ~NEED_DEVTREE; |
4883 | newLine = |
4884 | addLineTmpl(new, tmplLine, newLine, NULL, |
4885 | config->cfi); |
4886 | } else { |
4887 | /* pass through other lines from the template */ |
4888 | newLine = |
4889 | addLineTmpl(new, tmplLine, newLine, NULL, |
4890 | config->cfi); |
4891 | } |
4892 | } |
4893 | |
4894 | } else { |
4895 | /* don't have a template, so start the entry with the |
4896 | * appropriate starting line |
4897 | */ |
4898 | switch (config->cfi->entryStart) { |
4899 | case LT_KERNEL: |
4900 | case LT_KERNEL_EFI: |
4901 | case LT_KERNEL_16: |
4902 | if (new->multiboot && config->cfi->mbHyperFirst) { |
4903 | /* fall through to LT_HYPER */ |
4904 | } else { |
4905 | newLine = addLine(new, config->cfi, |
4906 | preferredLineType(LT_KERNEL, |
4907 | config-> |
4908 | cfi), |
4909 | config->primaryIndent, |
4910 | newKernelPath + |
4911 | strlen(prefix)); |
4912 | needs &= ~NEED_KERNEL; |
4913 | break; |
4914 | } |
4915 | |
4916 | case LT_HYPER: |
4917 | newLine = addLine(new, config->cfi, LT_HYPER, |
4918 | config->primaryIndent, |
4919 | newMBKernel + strlen(prefix)); |
4920 | needs &= ~NEED_MB; |
4921 | break; |
4922 | |
4923 | case LT_MENUENTRY:{ |
4924 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4925 | strcpy(nkt, "'"); |
4926 | strcat(nkt, newKernelTitle); |
4927 | strcat(nkt, "'"); |
4928 | newLine = |
4929 | addLine(new, config->cfi, LT_MENUENTRY, |
4930 | config->primaryIndent, nkt); |
4931 | free(nkt); |
4932 | needs &= ~NEED_TITLE; |
4933 | needs |= NEED_END; |
4934 | break; |
4935 | } |
4936 | case LT_TITLE: |
4937 | if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above) |
4938 | char *templabel; |
4939 | int x = 0, y = 0; |
4940 | |
4941 | templabel = strdup(newKernelTitle); |
4942 | while (templabel[x]) { |
4943 | if (templabel[x] == ' ') { |
4944 | y = x; |
4945 | while (templabel[y]) { |
4946 | templabel[y] = |
4947 | templabel[y + 1]; |
4948 | y++; |
4949 | } |
4950 | } |
4951 | x++; |
4952 | } |
4953 | newLine = addLine(new, config->cfi, LT_TITLE, |
4954 | config->primaryIndent, |
4955 | templabel); |
4956 | free(templabel); |
4957 | } else { |
4958 | newLine = addLine(new, config->cfi, LT_TITLE, |
4959 | config->primaryIndent, |
4960 | newKernelTitle); |
4961 | } |
4962 | needs &= ~NEED_TITLE; |
4963 | break; |
4964 | |
4965 | default: |
4966 | abort(); |
4967 | } |
4968 | } |
4969 | |
4970 | struct singleLine *endLine = NULL; |
4971 | endLine = getLineByType(LT_ENTRY_END, new->lines); |
4972 | if (endLine) { |
4973 | removeLine(new, endLine); |
4974 | needs |= NEED_END; |
4975 | } |
4976 | |
4977 | /* add the remainder of the lines, i.e. those that either |
4978 | * weren't present in the template, or in the case of no template, |
4979 | * all the lines following the entryStart. |
4980 | */ |
4981 | if (needs & NEED_TITLE) { |
4982 | newLine = addLine(new, config->cfi, LT_TITLE, |
4983 | config->secondaryIndent, newKernelTitle); |
4984 | needs &= ~NEED_TITLE; |
4985 | } |
4986 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
4987 | newLine = addLine(new, config->cfi, LT_HYPER, |
4988 | config->secondaryIndent, |
4989 | newMBKernel + strlen(prefix)); |
4990 | needs &= ~NEED_MB; |
4991 | } |
4992 | if (needs & NEED_KERNEL) { |
4993 | newLine = addLine(new, config->cfi, |
4994 | (new->multiboot |
4995 | && getKeywordByType(LT_MBMODULE, |
4996 | config->cfi)) |
4997 | ? LT_MBMODULE : preferredLineType(LT_KERNEL, |
4998 | config-> |
4999 | cfi), |
5000 | config->secondaryIndent, |
5001 | newKernelPath + strlen(prefix)); |
5002 | needs &= ~NEED_KERNEL; |
5003 | } |
5004 | if (needs & NEED_MB) { |
5005 | newLine = addLine(new, config->cfi, LT_HYPER, |
5006 | config->secondaryIndent, |
5007 | newMBKernel + strlen(prefix)); |
5008 | needs &= ~NEED_MB; |
5009 | } |
5010 | if (needs & NEED_INITRD) { |
5011 | char *initrdVal; |
5012 | initrdVal = |
5013 | getInitrdVal(config, prefix, NULL, newKernelInitrd, |
5014 | extraInitrds, extraInitrdCount); |
5015 | newLine = |
5016 | addLine(new, config->cfi, |
5017 | (new->multiboot |
5018 | && getKeywordByType(LT_MBMODULE, config->cfi)) |
5019 | ? LT_MBMODULE : preferredLineType(LT_INITRD, |
5020 | config->cfi), |
5021 | config->secondaryIndent, initrdVal); |
5022 | free(initrdVal); |
5023 | needs &= ~NEED_INITRD; |
5024 | } |
5025 | if (needs & NEED_DEVTREE) { |
5026 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
5027 | config->secondaryIndent, newDevTreePath); |
5028 | needs &= ~NEED_DEVTREE; |
5029 | } |
5030 | |
5031 | /* NEEDS_END must be last on bootloaders that need it... */ |
5032 | if (needs & NEED_END) { |
5033 | newLine = addLine(new, config->cfi, LT_ENTRY_END, |
5034 | config->secondaryIndent, NULL); |
5035 | needs &= ~NEED_END; |
5036 | } |
5037 | |
5038 | if (needs) { |
5039 | printf(_("grubby: needs=%d, aborting\n"), needs); |
5040 | abort(); |
5041 | } |
5042 | |
5043 | if (updateImage(config, indexs, prefix, newKernelArgs, NULL, |
5044 | newMBKernelArgs, NULL)) { |
5045 | config->isModified = 1; |
5046 | return 1; |
5047 | } |
5048 | |
5049 | return 0; |
5050 | } |
5051 | |
5052 | int main(int argc, const char **argv) |
5053 | { |
5054 | poptContext optCon; |
5055 | const char *grubConfig = NULL; |
5056 | char *outputFile = NULL; |
5057 | int arg = 0; |
5058 | int flags = 0; |
5059 | int badImageOkay = 0; |
5060 | int configureGrub2 = 0; |
5061 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
5062 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; |
5063 | int configureExtLinux = 0; |
5064 | int bootloaderProbe = 0; |
5065 | int extraInitrdCount = 0; |
5066 | char *updateKernelPath = NULL; |
5067 | char *newKernelPath = NULL; |
5068 | char *removeKernelPath = NULL; |
5069 | char *newKernelArgs = NULL; |
5070 | char *newKernelInitrd = NULL; |
5071 | char *newKernelTitle = NULL; |
5072 | char *newDevTreePath = NULL; |
5073 | char *newMBKernel = NULL; |
5074 | char *newMBKernelArgs = NULL; |
5075 | int newIndex = 0; |
5076 | char *removeMBKernelArgs = NULL; |
5077 | char *removeMBKernel = NULL; |
5078 | char *bootPrefix = NULL; |
5079 | char *defaultKernel = NULL; |
5080 | char *removeArgs = NULL; |
5081 | char *kernelInfo = NULL; |
5082 | char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
5083 | char *envPath = NULL; |
5084 | const char *chptr = NULL; |
5085 | struct configFileInfo *cfi = NULL; |
5086 | struct grubConfig *config; |
5087 | struct singleEntry *template = NULL; |
5088 | int copyDefault = 0, makeDefault = 0; |
5089 | int displayDefault = 0; |
5090 | int displayDefaultIndex = 0; |
5091 | int displayDefaultTitle = 0; |
5092 | int defaultIndex = -1; |
5093 | struct poptOption options[] = { |
5094 | {"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, |
5095 | _("add an entry for the specified kernel"), _("kernel-path")}, |
5096 | {"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, |
5097 | _("add an entry for the specified multiboot kernel"), NULL}, |
5098 | {"args", 0, POPT_ARG_STRING, &newKernelArgs, 0, |
5099 | _("default arguments for the new kernel or new arguments for " |
5100 | "kernel being updated"), _("args")}, |
5101 | {"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, |
5102 | _("default arguments for the new multiboot kernel or " |
5103 | "new arguments for multiboot kernel being updated"), NULL}, |
5104 | {"mounts", 0, POPT_ARG_STRING, &mounts, 0, |
5105 | _("path to fake /proc/mounts file (for testing only)"), |
5106 | _("mounts")}, |
5107 | {"bad-image-okay", 0, 0, &badImageOkay, 0, |
5108 | _ |
5109 | ("don't sanity check images in boot entries (for testing only)"), |
5110 | NULL}, |
5111 | {"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, |
5112 | _ |
5113 | ("filesystem which contains /boot directory (for testing only)"), |
5114 | _("bootfs")}, |
5115 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
5116 | {"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
5117 | _("check which bootloader is installed on boot sector")}, |
5118 | #endif |
5119 | {"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, |
5120 | _("path to grub config file to update (\"-\" for stdin)"), |
5121 | _("path")}, |
5122 | {"copy-default", 0, 0, ©Default, 0, |
5123 | _("use the default boot entry as a template for the new entry " |
5124 | "being added; if the default is not a linux image, or if " |
5125 | "the kernel referenced by the default image does not exist, " |
5126 | "the first linux entry whose kernel does exist is used as the " |
5127 | "template"), NULL}, |
5128 | {"debug", 0, 0, &debug, 0, |
5129 | _("print debugging information for failures")}, |
5130 | {"default-kernel", 0, 0, &displayDefault, 0, |
5131 | _("display the path of the default kernel")}, |
5132 | {"default-index", 0, 0, &displayDefaultIndex, 0, |
5133 | _("display the index of the default kernel")}, |
5134 | {"default-title", 0, 0, &displayDefaultTitle, 0, |
5135 | _("display the title of the default kernel")}, |
5136 | {"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
5137 | _("device tree file for new stanza"), _("dtb-path")}, |
5138 | {"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
5139 | _("device tree directory for new stanza"), _("dtb-path")}, |
5140 | {"elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
5141 | _("configure elilo bootloader")}, |
5142 | {"efi", 0, POPT_ARG_NONE, &isEfi, 0, |
5143 | _("force grub2 stanzas to use efi")}, |
5144 | {"env", 0, POPT_ARG_STRING, &envPath, 0, |
5145 | _("path for environment data"), |
5146 | _("path")}, |
5147 | {"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
5148 | _("configure extlinux bootloader (from syslinux)")}, |
5149 | {"grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
5150 | _("configure grub bootloader")}, |
5151 | {"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
5152 | _("configure grub2 bootloader")}, |
5153 | {"info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
5154 | _("display boot information for specified kernel"), |
5155 | _("kernel-path")}, |
5156 | {"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, |
5157 | _("initrd image for the new kernel"), _("initrd-path")}, |
5158 | {"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
5159 | _ |
5160 | ("auxiliary initrd image for things other than the new kernel"), |
5161 | _("initrd-path")}, |
5162 | {"lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
5163 | _("configure lilo bootloader")}, |
5164 | {"make-default", 0, 0, &makeDefault, 0, |
5165 | _("make the newly added entry the default boot entry"), NULL}, |
5166 | {"output-file", 'o', POPT_ARG_STRING, &outputFile, 0, |
5167 | _("path to output updated config file (\"-\" for stdout)"), |
5168 | _("path")}, |
5169 | {"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, |
5170 | _("remove kernel arguments"), NULL}, |
5171 | {"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, |
5172 | _("remove multiboot kernel arguments"), NULL}, |
5173 | {"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, |
5174 | _("remove all entries for the specified kernel"), |
5175 | _("kernel-path")}, |
5176 | {"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, |
5177 | _("remove all entries for the specified multiboot kernel"), |
5178 | NULL}, |
5179 | {"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, |
5180 | _("make the first entry referencing the specified kernel " |
5181 | "the default"), _("kernel-path")}, |
5182 | {"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, |
5183 | _("make the given entry index the default entry"), |
5184 | _("entry-index")}, |
5185 | {"set-index", 0, POPT_ARG_INT, &newIndex, 0, |
5186 | _("use the given index when creating a new entry"), |
5187 | _("entry-index")}, |
5188 | {"silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
5189 | _("configure silo bootloader")}, |
5190 | {"title", 0, POPT_ARG_STRING, &newKernelTitle, 0, |
5191 | _("title to use for the new kernel entry"), _("entry-title")}, |
5192 | {"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, |
5193 | _("updated information for the specified kernel"), |
5194 | _("kernel-path")}, |
5195 | {"version", 'v', 0, NULL, 'v', |
5196 | _("print the version of this program and exit"), NULL}, |
5197 | {"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, |
5198 | _("configure yaboot bootloader")}, |
5199 | {"zipl", 0, POPT_ARG_NONE, &configureZipl, 0, |
5200 | _("configure zipl bootloader")}, |
5201 | POPT_AUTOHELP {0, 0, 0, 0, 0} |
5202 | }; |
5203 | |
5204 | useextlinuxmenu = 0; |
5205 | |
5206 | int i = 0; |
5207 | for (int j = 1; j < argc; j++) |
5208 | i += strlen(argv[j]) + 1; |
5209 | saved_command_line = malloc(i); |
5210 | if (!saved_command_line) { |
5211 | fprintf(stderr, "grubby: %m\n"); |
5212 | exit(1); |
5213 | } |
5214 | saved_command_line[0] = '\0'; |
5215 | for (int j = 1; j < argc; j++) { |
5216 | strcat(saved_command_line, argv[j]); |
5217 | strncat(saved_command_line, j == argc - 1 ? "" : " ", 1); |
5218 | } |
5219 | |
5220 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
5221 | poptReadDefaultConfig(optCon, 1); |
5222 | |
5223 | while ((arg = poptGetNextOpt(optCon)) >= 0) { |
5224 | switch (arg) { |
5225 | case 'v': |
5226 | printf("grubby version %s\n", VERSION); |
5227 | exit(0); |
5228 | break; |
5229 | case 'i': |
5230 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { |
5231 | extraInitrds[extraInitrdCount++] = |
5232 | strdup(poptGetOptArg(optCon)); |
5233 | } else { |
5234 | fprintf(stderr, |
5235 | _ |
5236 | ("grubby: extra initrd maximum is %d\n"), |
5237 | extraInitrdCount); |
5238 | return 1; |
5239 | } |
5240 | break; |
5241 | } |
5242 | } |
5243 | |
5244 | if (arg < -1) { |
5245 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), |
5246 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), |
5247 | poptStrerror(arg)); |
5248 | return 1; |
5249 | } |
5250 | |
5251 | if ((chptr = poptGetArg(optCon))) { |
5252 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); |
5253 | return 1; |
5254 | } |
5255 | |
5256 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
5257 | configureYaboot + configureSilo + configureZipl + |
5258 | configureExtLinux) > 1) { |
5259 | fprintf(stderr, |
5260 | _("grubby: cannot specify multiple bootloaders\n")); |
5261 | return 1; |
5262 | } else if (bootloaderProbe && grubConfig) { |
5263 | fprintf(stderr, |
5264 | _ |
5265 | ("grubby: cannot specify config file with --bootloader-probe\n")); |
5266 | return 1; |
5267 | } else if (configureGrub2) { |
5268 | cfi = &grub2ConfigType; |
5269 | if (envPath) |
5270 | cfi->envFile = envPath; |
5271 | } else if (configureLilo) { |
5272 | cfi = &liloConfigType; |
5273 | } else if (configureGrub) { |
5274 | cfi = &grubConfigType; |
5275 | } else if (configureELilo) { |
5276 | cfi = &eliloConfigType; |
5277 | } else if (configureYaboot) { |
5278 | cfi = &yabootConfigType; |
5279 | } else if (configureSilo) { |
5280 | cfi = &siloConfigType; |
5281 | } else if (configureZipl) { |
5282 | cfi = &ziplConfigType; |
5283 | } else if (configureExtLinux) { |
5284 | cfi = &extlinuxConfigType; |
5285 | useextlinuxmenu = 1; |
5286 | } |
5287 | |
5288 | if (!cfi) { |
5289 | if (grub2FindConfig(&grub2ConfigType)) { |
5290 | cfi = &grub2ConfigType; |
5291 | configureGrub2 = 1; |
5292 | if (envPath) |
5293 | cfi->envFile = envPath; |
5294 | } else { |
5295 | #ifdef __ia64__ |
5296 | cfi = &eliloConfigType; |
5297 | configureLilo = 1; |
5298 | #elif defined(__powerpc__) |
5299 | cfi = &yabootConfigType; |
5300 | configureYaboot = 1; |
5301 | #elif defined(__sparc__) |
5302 | cfi = &siloConfigType; |
5303 | configureSilo = 1; |
5304 | #elif defined(__s390__) || defined(__s390x__) |
5305 | cfi = &ziplConfigType; |
5306 | configureZipl = 1; |
5307 | #else |
5308 | cfi = &grubConfigType; |
5309 | configureGrub = 1; |
5310 | #endif |
5311 | } |
5312 | } |
5313 | |
5314 | if (!grubConfig) { |
5315 | if (cfi->findConfig) |
5316 | grubConfig = cfi->findConfig(cfi); |
5317 | if (!grubConfig) |
5318 | grubConfig = cfi->defaultConfig; |
5319 | } |
5320 | |
5321 | if (bootloaderProbe && (displayDefault || kernelInfo || |
5322 | newKernelPath || removeKernelPath || makeDefault |
5323 | || defaultKernel || displayDefaultIndex |
5324 | || displayDefaultTitle |
5325 | || (defaultIndex >= 0))) { |
5326 | fprintf(stderr, |
5327 | _("grubby: --bootloader-probe may not be used with " |
5328 | "specified option")); |
5329 | return 1; |
5330 | } |
5331 | |
5332 | if ((displayDefault || kernelInfo) && (newKernelPath || |
5333 | removeKernelPath)) { |
5334 | fprintf(stderr, _("grubby: --default-kernel and --info may not " |
5335 | "be used when adding or removing kernels\n")); |
5336 | return 1; |
5337 | } |
5338 | |
5339 | if (newKernelPath && !newKernelTitle) { |
5340 | fprintf(stderr, _("grubby: kernel title must be specified\n")); |
5341 | return 1; |
5342 | } else if (!newKernelPath && (copyDefault || |
5343 | (newKernelInitrd && !updateKernelPath) || |
5344 | makeDefault || extraInitrdCount > 0)) { |
5345 | fprintf(stderr, _("grubby: kernel path expected\n")); |
5346 | return 1; |
5347 | } |
5348 | |
5349 | if (newKernelPath && updateKernelPath) { |
5350 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" |
5351 | "not be used together")); |
5352 | return 1; |
5353 | } |
5354 | |
5355 | if (makeDefault && defaultKernel) { |
5356 | fprintf(stderr, _("grubby: --make-default and --default-kernel " |
5357 | "may not be used together\n")); |
5358 | return 1; |
5359 | } else if (defaultKernel && removeKernelPath && |
5360 | !strcmp(defaultKernel, removeKernelPath)) { |
5361 | fprintf(stderr, |
5362 | _("grubby: cannot make removed kernel the default\n")); |
5363 | return 1; |
5364 | } else if (defaultKernel && newKernelPath && |
5365 | !strcmp(defaultKernel, newKernelPath)) { |
5366 | makeDefault = 1; |
5367 | defaultKernel = NULL; |
5368 | } else if (defaultKernel && (defaultIndex >= 0)) { |
5369 | fprintf(stderr, |
5370 | _("grubby: --set-default and --set-default-index " |
5371 | "may not be used together\n")); |
5372 | return 1; |
5373 | } |
5374 | |
5375 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
5376 | fprintf(stderr, |
5377 | _("grubby: output file must be specified if stdin " |
5378 | "is used\n")); |
5379 | return 1; |
5380 | } |
5381 | |
5382 | if (!removeKernelPath && !newKernelPath && !displayDefault |
5383 | && !defaultKernel && !kernelInfo && !bootloaderProbe |
5384 | && !updateKernelPath && !removeMBKernel && !displayDefaultIndex |
5385 | && !displayDefaultTitle && (defaultIndex == -1)) { |
5386 | fprintf(stderr, _("grubby: no action specified\n")); |
5387 | return 1; |
5388 | } |
5389 | |
5390 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; |
5391 | |
5392 | if (cfi->needsBootPrefix) { |
5393 | if (!bootPrefix) { |
5394 | bootPrefix = findBootPrefix(); |
5395 | if (!bootPrefix) |
5396 | return 1; |
5397 | } else { |
5398 | /* this shouldn't end with a / */ |
5399 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') |
5400 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; |
5401 | } |
5402 | } else { |
5403 | bootPrefix = ""; |
5404 | } |
5405 | |
5406 | if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) { |
5407 | fprintf(stderr, |
5408 | _("grubby: %s doesn't allow multiple initrds\n"), |
5409 | cfi->defaultConfig); |
5410 | return 1; |
5411 | } |
5412 | |
5413 | if (bootloaderProbe) { |
5414 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; |
5415 | struct grubConfig *lconfig, *gconfig, *yconfig, *econfig; |
5416 | |
5417 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
5418 | if (grub2config) { |
5419 | gconfig = readConfig(grub2config, &grub2ConfigType); |
5420 | if (!gconfig) |
5421 | gr2c = 1; |
5422 | else |
5423 | gr2c = checkForGrub2(gconfig); |
5424 | } |
5425 | |
5426 | const char *grubconfig = grubFindConfig(&grubConfigType); |
5427 | if (!access(grubconfig, F_OK)) { |
5428 | gconfig = readConfig(grubconfig, &grubConfigType); |
5429 | if (!gconfig) |
5430 | grc = 1; |
5431 | else |
5432 | grc = checkForGrub(gconfig); |
5433 | } |
5434 | |
5435 | if (!access(liloConfigType.defaultConfig, F_OK)) { |
5436 | lconfig = |
5437 | readConfig(liloConfigType.defaultConfig, |
5438 | &liloConfigType); |
5439 | if (!lconfig) |
5440 | lrc = 1; |
5441 | else |
5442 | lrc = checkForLilo(lconfig); |
5443 | } |
5444 | |
5445 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
5446 | econfig = readConfig(eliloConfigType.defaultConfig, |
5447 | &eliloConfigType); |
5448 | if (!econfig) |
5449 | erc = 1; |
5450 | else |
5451 | erc = checkForElilo(econfig); |
5452 | } |
5453 | |
5454 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
5455 | lconfig = |
5456 | readConfig(extlinuxConfigType.defaultConfig, |
5457 | &extlinuxConfigType); |
5458 | if (!lconfig) |
5459 | extrc = 1; |
5460 | else |
5461 | extrc = checkForExtLinux(lconfig); |
5462 | } |
5463 | |
5464 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
5465 | yconfig = readConfig(yabootConfigType.defaultConfig, |
5466 | &yabootConfigType); |
5467 | if (!yconfig) |
5468 | yrc = 1; |
5469 | else |
5470 | yrc = checkForYaboot(yconfig); |
5471 | } |
5472 | |
5473 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 |
5474 | || erc == 1) |
5475 | return 1; |
5476 | |
5477 | if (lrc == 2) |
5478 | printf("lilo\n"); |
5479 | if (gr2c == 2) |
5480 | printf("grub2\n"); |
5481 | if (grc == 2) |
5482 | printf("grub\n"); |
5483 | if (extrc == 2) |
5484 | printf("extlinux\n"); |
5485 | if (yrc == 2) |
5486 | printf("yaboot\n"); |
5487 | if (erc == 2) |
5488 | printf("elilo\n"); |
5489 | |
5490 | return 0; |
5491 | } |
5492 | |
5493 | if (grubConfig == NULL) { |
5494 | printf("Could not find bootloader configuration file.\n"); |
5495 | exit(1); |
5496 | } |
5497 | |
5498 | config = readConfig(grubConfig, cfi); |
5499 | if (!config) |
5500 | return 1; |
5501 | |
5502 | if (displayDefault) { |
5503 | struct singleLine *line; |
5504 | struct singleEntry *entry; |
5505 | size_t rs; |
5506 | |
5507 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5508 | return 0; |
5509 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5510 | cfi->defaultIsSaved) |
5511 | config->defaultImage = FIRST_ENTRY_INDEX; |
5512 | entry = findEntryByIndex(config, config->defaultImage); |
5513 | if (!entry) |
5514 | return 0; |
5515 | if (!suitableImage(entry, bootPrefix, 0, flags)) |
5516 | return 0; |
5517 | |
5518 | line = |
5519 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
5520 | LT_KERNEL_16, entry->lines); |
5521 | if (!line) |
5522 | return 0; |
5523 | |
5524 | rs = getRootSpecifier(line->elements[1].item); |
5525 | printf("%s%s\n", bootPrefix, line->elements[1].item + rs); |
5526 | |
5527 | return 0; |
5528 | |
5529 | } else if (displayDefaultTitle) { |
5530 | struct singleLine *line; |
5531 | struct singleEntry *entry; |
5532 | |
5533 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5534 | return 0; |
5535 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5536 | cfi->defaultIsSaved) |
5537 | config->defaultImage = FIRST_ENTRY_INDEX; |
5538 | entry = findEntryByIndex(config, config->defaultImage); |
5539 | if (!entry) |
5540 | return 0; |
5541 | |
5542 | if (!configureGrub2) { |
5543 | char *title; |
5544 | line = getLineByType(LT_TITLE, entry->lines); |
5545 | if (!line) |
5546 | return 0; |
5547 | title = extractTitle(config, line); |
5548 | if (!title) |
5549 | return 0; |
5550 | printf("%s\n", title); |
5551 | free(title); |
5552 | } else { |
5553 | char *title; |
5554 | |
5555 | dbgPrintf |
5556 | ("This is GRUB2, default title is embeded in menuentry\n"); |
5557 | line = getLineByType(LT_MENUENTRY, entry->lines); |
5558 | if (!line) |
5559 | return 0; |
5560 | title = grub2ExtractTitle(line); |
5561 | if (title) |
5562 | printf("%s\n", title); |
5563 | } |
5564 | return 0; |
5565 | |
5566 | } else if (displayDefaultIndex) { |
5567 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5568 | return 0; |
5569 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5570 | cfi->defaultIsSaved) |
5571 | config->defaultImage = FIRST_ENTRY_INDEX; |
5572 | printf("%i\n", config->defaultImage); |
5573 | return 0; |
5574 | |
5575 | } else if (kernelInfo) |
5576 | return displayInfo(config, kernelInfo, bootPrefix); |
5577 | |
5578 | if (copyDefault) { |
5579 | template = findTemplate(config, bootPrefix, NULL, 0, flags); |
5580 | if (!template) |
5581 | return 1; |
5582 | } |
5583 | |
5584 | markRemovedImage(config, removeKernelPath, bootPrefix); |
5585 | markRemovedImage(config, removeMBKernel, bootPrefix); |
5586 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, |
5587 | makeDefault, bootPrefix, flags, defaultIndex, |
5588 | newIndex); |
5589 | setFallbackImage(config, newKernelPath != NULL); |
5590 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, |
5591 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) |
5592 | return 1; |
5593 | if (updateKernelPath && newKernelInitrd) { |
5594 | if (newMBKernel) { |
5595 | if (addMBInitrd(config, newMBKernel, updateKernelPath, |
5596 | bootPrefix, newKernelInitrd, |
5597 | newKernelTitle)) |
5598 | return 1; |
5599 | } else { |
5600 | if (updateInitrd(config, updateKernelPath, bootPrefix, |
5601 | newKernelInitrd, newKernelTitle)) |
5602 | return 1; |
5603 | } |
5604 | } |
5605 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
5606 | newKernelTitle, newKernelArgs, newKernelInitrd, |
5607 | (const char **)extraInitrds, extraInitrdCount, |
5608 | newMBKernel, newMBKernelArgs, newDevTreePath, |
5609 | newIndex)) |
5610 | return 1; |
5611 | |
5612 | if (numEntries(config) == 0) { |
5613 | fprintf(stderr, |
5614 | _("grubby: doing this would leave no kernel entries. " |
5615 | "Not writing out new config.\n")); |
5616 | return 1; |
5617 | } |
5618 | |
5619 | if (!outputFile) |
5620 | outputFile = (char *)grubConfig; |
5621 | |
5622 | return writeConfig(config, outputFile, bootPrefix); |
5623 | } |