Contents of /trunk/grubby/grubby.c
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Tue Jun 27 14:11:58 2017 UTC (7 years, 2 months ago) by niro
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Tue Jun 27 14:11:58 2017 UTC (7 years, 2 months ago) by niro
File MIME type: text/plain
File size: 127293 byte(s)
Lindent, dammit.
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 | /* comments get lumped in with indention */ |
72 | struct lineElement { |
73 | char *item; |
74 | char *indent; |
75 | }; |
76 | |
77 | enum lineType_e { |
78 | LT_WHITESPACE = 1 << 0, |
79 | LT_TITLE = 1 << 1, |
80 | LT_KERNEL = 1 << 2, |
81 | LT_INITRD = 1 << 3, |
82 | LT_HYPER = 1 << 4, |
83 | LT_DEFAULT = 1 << 5, |
84 | LT_MBMODULE = 1 << 6, |
85 | LT_ROOT = 1 << 7, |
86 | LT_FALLBACK = 1 << 8, |
87 | LT_KERNELARGS = 1 << 9, |
88 | LT_BOOT = 1 << 10, |
89 | LT_BOOTROOT = 1 << 11, |
90 | LT_LBA = 1 << 12, |
91 | LT_OTHER = 1 << 13, |
92 | LT_GENERIC = 1 << 14, |
93 | LT_ECHO = 1 << 16, |
94 | LT_MENUENTRY = 1 << 17, |
95 | LT_ENTRY_END = 1 << 18, |
96 | LT_SET_VARIABLE = 1 << 19, |
97 | LT_KERNEL_EFI = 1 << 20, |
98 | LT_INITRD_EFI = 1 << 21, |
99 | LT_KERNEL_16 = 1 << 22, |
100 | LT_INITRD_16 = 1 << 23, |
101 | LT_DEVTREE = 1 << 24, |
102 | LT_UNKNOWN = 1 << 25, |
103 | }; |
104 | |
105 | struct singleLine { |
106 | char *indent; |
107 | int numElements; |
108 | struct lineElement *elements; |
109 | struct singleLine *next; |
110 | enum lineType_e type; |
111 | }; |
112 | |
113 | struct singleEntry { |
114 | struct singleLine *lines; |
115 | int skip; |
116 | int multiboot; |
117 | struct singleEntry *next; |
118 | }; |
119 | |
120 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) |
121 | |
122 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ |
123 | |
124 | /* These defines are (only) used in addNewKernel() */ |
125 | #define NEED_KERNEL (1 << 0) |
126 | #define NEED_INITRD (1 << 1) |
127 | #define NEED_TITLE (1 << 2) |
128 | #define NEED_ARGS (1 << 3) |
129 | #define NEED_MB (1 << 4) |
130 | #define NEED_END (1 << 5) |
131 | #define NEED_DEVTREE (1 << 6) |
132 | |
133 | #define MAIN_DEFAULT (1 << 0) |
134 | #define DEFAULT_SAVED -2 |
135 | #define DEFAULT_SAVED_GRUB2 -3 |
136 | |
137 | struct keywordTypes { |
138 | char *key; |
139 | enum lineType_e type; |
140 | char nextChar; |
141 | char separatorChar; |
142 | }; |
143 | |
144 | struct configFileInfo; |
145 | |
146 | typedef const char *(*findConfigFunc) (struct configFileInfo *); |
147 | typedef const int (*writeLineFunc) (struct configFileInfo *, |
148 | struct singleLine * line); |
149 | typedef char *(*getEnvFunc) (struct configFileInfo *, char *name); |
150 | typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value); |
151 | |
152 | struct configFileInfo { |
153 | char *defaultConfig; |
154 | findConfigFunc findConfig; |
155 | writeLineFunc writeLine; |
156 | getEnvFunc getEnv; |
157 | setEnvFunc setEnv; |
158 | struct keywordTypes *keywords; |
159 | int caseInsensitive; |
160 | int defaultIsIndex; |
161 | int defaultIsVariable; |
162 | int defaultSupportSaved; |
163 | int defaultIsSaved; |
164 | int defaultIsUnquoted; |
165 | enum lineType_e entryStart; |
166 | enum lineType_e entryEnd; |
167 | int needsBootPrefix; |
168 | int argsInQuotes; |
169 | int maxTitleLength; |
170 | int titleBracketed; |
171 | int titlePosition; |
172 | int mbHyperFirst; |
173 | int mbInitRdIsModule; |
174 | int mbConcatArgs; |
175 | int mbAllowExtraInitRds; |
176 | char *envFile; |
177 | }; |
178 | |
179 | struct keywordTypes grubKeywords[] = { |
180 | {"title", LT_TITLE, ' '}, |
181 | {"root", LT_BOOTROOT, ' '}, |
182 | {"default", LT_DEFAULT, ' '}, |
183 | {"fallback", LT_FALLBACK, ' '}, |
184 | {"kernel", LT_KERNEL, ' '}, |
185 | {"initrd", LT_INITRD, ' ', ' '}, |
186 | {"module", LT_MBMODULE, ' '}, |
187 | {"kernel", LT_HYPER, ' '}, |
188 | {NULL, 0, 0}, |
189 | }; |
190 | |
191 | const char *grubFindConfig(struct configFileInfo *cfi) |
192 | { |
193 | static const char *configFiles[] = { |
194 | "/boot/grub/grub.conf", |
195 | "/boot/grub/menu.lst", |
196 | "/etc/grub.conf", |
197 | NULL |
198 | }; |
199 | static int i = -1; |
200 | |
201 | if (i == -1) { |
202 | for (i = 0; configFiles[i] != NULL; i++) { |
203 | dbgPrintf("Checking \"%s\": ", configFiles[i]); |
204 | if (!access(configFiles[i], R_OK)) { |
205 | dbgPrintf("found\n"); |
206 | return configFiles[i]; |
207 | } |
208 | dbgPrintf("not found\n"); |
209 | } |
210 | } |
211 | return configFiles[i]; |
212 | } |
213 | |
214 | struct configFileInfo grubConfigType = { |
215 | .findConfig = grubFindConfig, |
216 | .keywords = grubKeywords, |
217 | .defaultIsIndex = 1, |
218 | .defaultSupportSaved = 1, |
219 | .entryStart = LT_TITLE, |
220 | .needsBootPrefix = 1, |
221 | .mbHyperFirst = 1, |
222 | .mbInitRdIsModule = 1, |
223 | .mbAllowExtraInitRds = 1, |
224 | .titlePosition = 1, |
225 | }; |
226 | |
227 | struct keywordTypes grub2Keywords[] = { |
228 | {"menuentry", LT_MENUENTRY, ' '}, |
229 | {"}", LT_ENTRY_END, ' '}, |
230 | {"echo", LT_ECHO, ' '}, |
231 | {"set", LT_SET_VARIABLE, ' ', '='}, |
232 | {"root", LT_BOOTROOT, ' '}, |
233 | {"default", LT_DEFAULT, ' '}, |
234 | {"fallback", LT_FALLBACK, ' '}, |
235 | {"linux", LT_KERNEL, ' '}, |
236 | {"linuxefi", LT_KERNEL_EFI, ' '}, |
237 | {"linux16", LT_KERNEL_16, ' '}, |
238 | {"initrd", LT_INITRD, ' ', ' '}, |
239 | {"initrdefi", LT_INITRD_EFI, ' ', ' '}, |
240 | {"initrd16", LT_INITRD_16, ' ', ' '}, |
241 | {"module", LT_MBMODULE, ' '}, |
242 | {"kernel", LT_HYPER, ' '}, |
243 | {"devicetree", LT_DEVTREE, ' '}, |
244 | {NULL, 0, 0}, |
245 | }; |
246 | |
247 | const char *grub2FindConfig(struct configFileInfo *cfi) |
248 | { |
249 | static const char *configFiles[] = { |
250 | "/boot/grub/grub-efi.cfg", |
251 | "/boot/grub/grub.cfg", |
252 | "/etc/grub2-efi.cfg", |
253 | "/etc/grub2.cfg", |
254 | "/boot/grub2/grub.cfg", |
255 | "/boot/grub2-efi/grub.cfg", |
256 | NULL |
257 | }; |
258 | static int i = -1; |
259 | static const char *grub_cfg = "/boot/grub/grub.cfg"; |
260 | int rc = -1; |
261 | |
262 | if (i == -1) { |
263 | for (i = 0; configFiles[i] != NULL; i++) { |
264 | dbgPrintf("Checking \"%s\": ", configFiles[i]); |
265 | if ((rc = access(configFiles[i], R_OK))) { |
266 | if (errno == EACCES) { |
267 | printf |
268 | ("Unable to access bootloader configuration file " |
269 | "\"%s\": %m\n", configFiles[i]); |
270 | exit(1); |
271 | } |
272 | continue; |
273 | } else { |
274 | dbgPrintf("found\n"); |
275 | return configFiles[i]; |
276 | } |
277 | } |
278 | } |
279 | |
280 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory |
281 | * that isn't in grub1, and if it exists, return the config file path |
282 | * that they use. */ |
283 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { |
284 | dbgPrintf("found\n"); |
285 | return grub_cfg; |
286 | } |
287 | |
288 | dbgPrintf("not found\n"); |
289 | return configFiles[i]; |
290 | } |
291 | |
292 | /* kind of hacky. It'll give the first 1024 bytes, ish. */ |
293 | static char *grub2GetEnv(struct configFileInfo *info, char *name) |
294 | { |
295 | static char buf[1025]; |
296 | char *s = NULL; |
297 | char *ret = NULL; |
298 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
299 | int rc = |
300 | asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name); |
301 | |
302 | if (rc < 0) |
303 | return NULL; |
304 | |
305 | FILE *f = popen(s, "r"); |
306 | if (!f) |
307 | goto out; |
308 | |
309 | memset(buf, '\0', sizeof(buf)); |
310 | ret = fgets(buf, 1024, f); |
311 | pclose(f); |
312 | |
313 | if (ret) { |
314 | ret += strlen(name) + 1; |
315 | ret[strlen(ret) - 1] = '\0'; |
316 | } |
317 | dbgPrintf("grub2GetEnv(%s): %s\n", name, ret); |
318 | out: |
319 | free(s); |
320 | return ret; |
321 | } |
322 | |
323 | static int sPopCount(const char *s, const char *c) |
324 | { |
325 | int ret = 0; |
326 | if (!s) |
327 | return -1; |
328 | for (int i = 0; s[i] != '\0'; i++) |
329 | for (int j = 0; c[j] != '\0'; j++) |
330 | if (s[i] == c[j]) |
331 | ret++; |
332 | return ret; |
333 | } |
334 | |
335 | static char *shellEscape(const char *s) |
336 | { |
337 | int l = strlen(s) + sPopCount(s, "'") * 2; |
338 | |
339 | char *ret = calloc(l + 1, sizeof(*ret)); |
340 | if (!ret) |
341 | return NULL; |
342 | for (int i = 0, j = 0; s[i] != '\0'; i++, j++) { |
343 | if (s[i] == '\'') |
344 | ret[j++] = '\\'; |
345 | ret[j] = s[i]; |
346 | } |
347 | return ret; |
348 | } |
349 | |
350 | static void unquote(char *s) |
351 | { |
352 | int l = strlen(s); |
353 | |
354 | if ((s[l - 1] == '\'' && s[0] == '\'') |
355 | || (s[l - 1] == '"' && s[0] == '"')) { |
356 | memmove(s, s + 1, l - 2); |
357 | s[l - 2] = '\0'; |
358 | } |
359 | } |
360 | |
361 | static int grub2SetEnv(struct configFileInfo *info, char *name, char *value) |
362 | { |
363 | char *s = NULL; |
364 | int rc = 0; |
365 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
366 | |
367 | unquote(value); |
368 | value = shellEscape(value); |
369 | if (!value) |
370 | return -1; |
371 | |
372 | rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value); |
373 | free(value); |
374 | if (rc < 0) |
375 | return -1; |
376 | |
377 | dbgPrintf("grub2SetEnv(%s): %s\n", name, s); |
378 | rc = system(s); |
379 | free(s); |
380 | return rc; |
381 | } |
382 | |
383 | /* this is a gigantic hack to avoid clobbering grub2 variables... */ |
384 | static int is_special_grub2_variable(const char *name) |
385 | { |
386 | if (!strcmp(name, "\"${next_entry}\"")) |
387 | return 1; |
388 | if (!strcmp(name, "\"${prev_saved_entry}\"")) |
389 | return 1; |
390 | return 0; |
391 | } |
392 | |
393 | int sizeOfSingleLine(struct singleLine *line) |
394 | { |
395 | int count = 0; |
396 | |
397 | for (int i = 0; i < line->numElements; i++) { |
398 | int indentSize = 0; |
399 | |
400 | count = count + strlen(line->elements[i].item); |
401 | |
402 | indentSize = strlen(line->elements[i].indent); |
403 | if (indentSize > 0) |
404 | count = count + indentSize; |
405 | else |
406 | /* be extra safe and add room for whitespaces */ |
407 | count = count + 1; |
408 | } |
409 | |
410 | /* room for trailing terminator */ |
411 | count = count + 1; |
412 | |
413 | return count; |
414 | } |
415 | |
416 | static int isquote(char q) |
417 | { |
418 | if (q == '\'' || q == '\"') |
419 | return 1; |
420 | return 0; |
421 | } |
422 | |
423 | static int iskernel(enum lineType_e type) |
424 | { |
425 | return (type == LT_KERNEL || type == LT_KERNEL_EFI |
426 | || type == LT_KERNEL_16); |
427 | } |
428 | |
429 | static int isinitrd(enum lineType_e type) |
430 | { |
431 | return (type == LT_INITRD || type == LT_INITRD_EFI |
432 | || type == LT_INITRD_16); |
433 | } |
434 | |
435 | char *grub2ExtractTitle(struct singleLine *line) |
436 | { |
437 | char *current; |
438 | char *current_indent; |
439 | int current_len; |
440 | int current_indent_len; |
441 | int i; |
442 | |
443 | /* bail out if line does not start with menuentry */ |
444 | if (strcmp(line->elements[0].item, "menuentry")) |
445 | return NULL; |
446 | |
447 | i = 1; |
448 | current = line->elements[i].item; |
449 | current_len = strlen(current); |
450 | |
451 | /* if second word is quoted, strip the quotes and return single word */ |
452 | if (isquote(*current) && isquote(current[current_len - 1])) { |
453 | char *tmp; |
454 | |
455 | tmp = strdup(current + 1); |
456 | if (!tmp) |
457 | return NULL; |
458 | tmp[strlen(tmp) - 1] = '\0'; |
459 | return tmp; |
460 | } |
461 | |
462 | /* if no quotes, return second word verbatim */ |
463 | if (!isquote(*current)) |
464 | return current; |
465 | |
466 | /* second element start with a quote, so we have to find the element |
467 | * whose last character is also quote (assuming it's the closing one) */ |
468 | int resultMaxSize; |
469 | char *result; |
470 | /* need to ensure that ' does not match " as we search */ |
471 | char quote_char = *current; |
472 | |
473 | resultMaxSize = sizeOfSingleLine(line); |
474 | result = malloc(resultMaxSize); |
475 | snprintf(result, resultMaxSize, "%s", ++current); |
476 | |
477 | i++; |
478 | for (; i < line->numElements; ++i) { |
479 | current = line->elements[i].item; |
480 | current_len = strlen(current); |
481 | current_indent = line->elements[i].indent; |
482 | current_indent_len = strlen(current_indent); |
483 | |
484 | strncat(result, current_indent, current_indent_len); |
485 | if (current[current_len - 1] != quote_char) { |
486 | strncat(result, current, current_len); |
487 | } else { |
488 | strncat(result, current, current_len - 1); |
489 | break; |
490 | } |
491 | } |
492 | return result; |
493 | } |
494 | |
495 | struct configFileInfo grub2ConfigType = { |
496 | .findConfig = grub2FindConfig, |
497 | .getEnv = grub2GetEnv, |
498 | .setEnv = grub2SetEnv, |
499 | .keywords = grub2Keywords, |
500 | .defaultIsIndex = 1, |
501 | .defaultSupportSaved = 1, |
502 | .defaultIsVariable = 1, |
503 | .entryStart = LT_MENUENTRY, |
504 | .entryEnd = LT_ENTRY_END, |
505 | .titlePosition = 1, |
506 | .needsBootPrefix = 1, |
507 | .mbHyperFirst = 1, |
508 | .mbInitRdIsModule = 1, |
509 | .mbAllowExtraInitRds = 1, |
510 | }; |
511 | |
512 | struct keywordTypes yabootKeywords[] = { |
513 | {"label", LT_TITLE, '='}, |
514 | {"root", LT_ROOT, '='}, |
515 | {"default", LT_DEFAULT, '='}, |
516 | {"image", LT_KERNEL, '='}, |
517 | {"bsd", LT_GENERIC, '='}, |
518 | {"macos", LT_GENERIC, '='}, |
519 | {"macosx", LT_GENERIC, '='}, |
520 | {"magicboot", LT_GENERIC, '='}, |
521 | {"darwin", LT_GENERIC, '='}, |
522 | {"timeout", LT_GENERIC, '='}, |
523 | {"install", LT_GENERIC, '='}, |
524 | {"fstype", LT_GENERIC, '='}, |
525 | {"hfstype", LT_GENERIC, '='}, |
526 | {"delay", LT_GENERIC, '='}, |
527 | {"defaultos", LT_GENERIC, '='}, |
528 | {"init-message", LT_GENERIC, '='}, |
529 | {"enablecdboot", LT_GENERIC, ' '}, |
530 | {"enableofboot", LT_GENERIC, ' '}, |
531 | {"enablenetboot", LT_GENERIC, ' '}, |
532 | {"nonvram", LT_GENERIC, ' '}, |
533 | {"hide", LT_GENERIC, ' '}, |
534 | {"protect", LT_GENERIC, ' '}, |
535 | {"nobless", LT_GENERIC, ' '}, |
536 | {"nonvram", LT_GENERIC, ' '}, |
537 | {"brokenosx", LT_GENERIC, ' '}, |
538 | {"usemount", LT_GENERIC, ' '}, |
539 | {"mntpoint", LT_GENERIC, '='}, |
540 | {"partition", LT_GENERIC, '='}, |
541 | {"device", LT_GENERIC, '='}, |
542 | {"fstype", LT_GENERIC, '='}, |
543 | {"initrd", LT_INITRD, '=', ';'}, |
544 | {"append", LT_KERNELARGS, '='}, |
545 | {"boot", LT_BOOT, '='}, |
546 | {"lba", LT_LBA, ' '}, |
547 | {NULL, 0, 0}, |
548 | }; |
549 | |
550 | struct keywordTypes liloKeywords[] = { |
551 | {"label", LT_TITLE, '='}, |
552 | {"root", LT_ROOT, '='}, |
553 | {"default", LT_DEFAULT, '='}, |
554 | {"image", LT_KERNEL, '='}, |
555 | {"other", LT_OTHER, '='}, |
556 | {"initrd", LT_INITRD, '='}, |
557 | {"append", LT_KERNELARGS, '='}, |
558 | {"boot", LT_BOOT, '='}, |
559 | {"lba", LT_LBA, ' '}, |
560 | {NULL, 0, 0}, |
561 | }; |
562 | |
563 | struct keywordTypes eliloKeywords[] = { |
564 | {"label", LT_TITLE, '='}, |
565 | {"root", LT_ROOT, '='}, |
566 | {"default", LT_DEFAULT, '='}, |
567 | {"image", LT_KERNEL, '='}, |
568 | {"initrd", LT_INITRD, '='}, |
569 | {"append", LT_KERNELARGS, '='}, |
570 | {"vmm", LT_HYPER, '='}, |
571 | {NULL, 0, 0}, |
572 | }; |
573 | |
574 | struct keywordTypes siloKeywords[] = { |
575 | {"label", LT_TITLE, '='}, |
576 | {"root", LT_ROOT, '='}, |
577 | {"default", LT_DEFAULT, '='}, |
578 | {"image", LT_KERNEL, '='}, |
579 | {"other", LT_OTHER, '='}, |
580 | {"initrd", LT_INITRD, '='}, |
581 | {"append", LT_KERNELARGS, '='}, |
582 | {"boot", LT_BOOT, '='}, |
583 | {NULL, 0, 0}, |
584 | }; |
585 | |
586 | struct keywordTypes ziplKeywords[] = { |
587 | {"target", LT_BOOTROOT, '='}, |
588 | {"image", LT_KERNEL, '='}, |
589 | {"ramdisk", LT_INITRD, '='}, |
590 | {"parameters", LT_KERNELARGS, '='}, |
591 | {"default", LT_DEFAULT, '='}, |
592 | {NULL, 0, 0}, |
593 | }; |
594 | |
595 | struct keywordTypes extlinuxKeywords[] = { |
596 | {"label", LT_TITLE, ' '}, |
597 | {"root", LT_ROOT, ' '}, |
598 | {"default", LT_DEFAULT, ' '}, |
599 | {"kernel", LT_KERNEL, ' '}, |
600 | {"initrd", LT_INITRD, ' ', ','}, |
601 | {"append", LT_KERNELARGS, ' '}, |
602 | {"prompt", LT_UNKNOWN, ' '}, |
603 | {"fdt", LT_DEVTREE, ' '}, |
604 | {"fdtdir", LT_DEVTREE, ' '}, |
605 | {NULL, 0, 0}, |
606 | }; |
607 | |
608 | int useextlinuxmenu; |
609 | struct configFileInfo eliloConfigType = { |
610 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
611 | .keywords = eliloKeywords, |
612 | .entryStart = LT_KERNEL, |
613 | .needsBootPrefix = 1, |
614 | .argsInQuotes = 1, |
615 | .mbConcatArgs = 1, |
616 | .titlePosition = 1, |
617 | }; |
618 | |
619 | struct configFileInfo liloConfigType = { |
620 | .defaultConfig = "/etc/lilo.conf", |
621 | .keywords = liloKeywords, |
622 | .entryStart = LT_KERNEL, |
623 | .argsInQuotes = 1, |
624 | .maxTitleLength = 15, |
625 | .titlePosition = 1, |
626 | }; |
627 | |
628 | struct configFileInfo yabootConfigType = { |
629 | .defaultConfig = "/etc/yaboot.conf", |
630 | .keywords = yabootKeywords, |
631 | .entryStart = LT_KERNEL, |
632 | .needsBootPrefix = 1, |
633 | .argsInQuotes = 1, |
634 | .maxTitleLength = 15, |
635 | .mbAllowExtraInitRds = 1, |
636 | .titlePosition = 1, |
637 | }; |
638 | |
639 | struct configFileInfo siloConfigType = { |
640 | .defaultConfig = "/etc/silo.conf", |
641 | .keywords = siloKeywords, |
642 | .entryStart = LT_KERNEL, |
643 | .needsBootPrefix = 1, |
644 | .argsInQuotes = 1, |
645 | .maxTitleLength = 15, |
646 | .titlePosition = 1, |
647 | }; |
648 | |
649 | struct configFileInfo ziplConfigType = { |
650 | .defaultConfig = "/etc/zipl.conf", |
651 | .keywords = ziplKeywords, |
652 | .entryStart = LT_TITLE, |
653 | .argsInQuotes = 1, |
654 | .titleBracketed = 1, |
655 | }; |
656 | |
657 | struct configFileInfo extlinuxConfigType = { |
658 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
659 | .keywords = extlinuxKeywords, |
660 | .caseInsensitive = 1, |
661 | .entryStart = LT_TITLE, |
662 | .needsBootPrefix = 1, |
663 | .maxTitleLength = 255, |
664 | .mbAllowExtraInitRds = 1, |
665 | .defaultIsUnquoted = 1, |
666 | .titlePosition = 1, |
667 | }; |
668 | |
669 | struct grubConfig { |
670 | struct singleLine *theLines; |
671 | struct singleEntry *entries; |
672 | char *primaryIndent; |
673 | char *secondaryIndent; |
674 | int defaultImage; /* -1 if none specified -- this value is |
675 | * written out, overriding original */ |
676 | int fallbackImage; /* just like defaultImage */ |
677 | int flags; |
678 | struct configFileInfo *cfi; |
679 | }; |
680 | |
681 | blkid_cache blkid; |
682 | |
683 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index); |
684 | struct singleEntry *findEntryByPath(struct grubConfig *cfg, |
685 | const char *path, const char *prefix, |
686 | int *index); |
687 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
688 | int *index); |
689 | static int readFile(int fd, char **bufPtr); |
690 | static void lineInit(struct singleLine *line); |
691 | struct singleLine *lineDup(struct singleLine *line); |
692 | static void lineFree(struct singleLine *line); |
693 | static int lineWrite(FILE * out, struct singleLine *line, |
694 | struct configFileInfo *cfi); |
695 | static int getNextLine(char **bufPtr, struct singleLine *line, |
696 | struct configFileInfo *cfi); |
697 | static char *getRootSpecifier(char *str); |
698 | static void requote(struct singleLine *line, struct configFileInfo *cfi); |
699 | static void insertElement(struct singleLine *line, |
700 | const char *item, int insertHere, |
701 | struct configFileInfo *cfi); |
702 | static void removeElement(struct singleLine *line, int removeHere); |
703 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
704 | struct configFileInfo *cfi); |
705 | static enum lineType_e getTypeByKeyword(char *keyword, |
706 | struct configFileInfo *cfi); |
707 | static struct singleLine *getLineByType(enum lineType_e type, |
708 | struct singleLine *line); |
709 | static int checkForExtLinux(struct grubConfig *config); |
710 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
711 | struct singleLine *tmplLine, |
712 | struct singleLine *prevLine, |
713 | const char *val, struct configFileInfo *cfi); |
714 | struct singleLine *addLine(struct singleEntry *entry, |
715 | struct configFileInfo *cfi, |
716 | enum lineType_e type, char *defaultIndent, |
717 | const char *val); |
718 | |
719 | static char *sdupprintf(const char *format, ...) |
720 | #ifdef __GNUC__ |
721 | __attribute__ ((format(printf, 1, 2))); |
722 | #else |
723 | ; |
724 | #endif |
725 | |
726 | static char *sdupprintf(const char *format, ...) |
727 | { |
728 | char *buf = NULL; |
729 | char c; |
730 | va_list args; |
731 | size_t size = 0; |
732 | va_start(args, format); |
733 | |
734 | /* XXX requires C99 vsnprintf behavior */ |
735 | size = vsnprintf(&c, 1, format, args) + 1; |
736 | if (size == -1) { |
737 | printf("ERROR: vsnprintf behavior is not C99\n"); |
738 | abort(); |
739 | } |
740 | |
741 | va_end(args); |
742 | va_start(args, format); |
743 | |
744 | buf = malloc(size); |
745 | if (buf == NULL) |
746 | return NULL; |
747 | vsnprintf(buf, size, format, args); |
748 | va_end(args); |
749 | |
750 | return buf; |
751 | } |
752 | |
753 | static enum lineType_e preferredLineType(enum lineType_e type, |
754 | struct configFileInfo *cfi) |
755 | { |
756 | if (isEfi && cfi == &grub2ConfigType) { |
757 | switch (type) { |
758 | case LT_KERNEL: |
759 | return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI; |
760 | case LT_INITRD: |
761 | return isEfiOnly ? LT_INITRD : LT_INITRD_EFI; |
762 | default: |
763 | return type; |
764 | } |
765 | #if defined(__i386__) || defined(__x86_64__) |
766 | } else if (cfi == &grub2ConfigType) { |
767 | switch (type) { |
768 | case LT_KERNEL: |
769 | return LT_KERNEL_16; |
770 | case LT_INITRD: |
771 | return LT_INITRD_16; |
772 | default: |
773 | return type; |
774 | } |
775 | #endif |
776 | } |
777 | return type; |
778 | } |
779 | |
780 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
781 | struct configFileInfo *cfi) |
782 | { |
783 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
784 | if (kw->type == type) |
785 | return kw; |
786 | } |
787 | return NULL; |
788 | } |
789 | |
790 | static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi) |
791 | { |
792 | struct keywordTypes *kt = getKeywordByType(type, cfi); |
793 | if (kt) |
794 | return kt->key; |
795 | return "unknown"; |
796 | } |
797 | |
798 | static char *getpathbyspec(char *device) |
799 | { |
800 | if (!blkid) |
801 | blkid_get_cache(&blkid, NULL); |
802 | |
803 | return blkid_get_devname(blkid, device, NULL); |
804 | } |
805 | |
806 | static char *getuuidbydev(char *device) |
807 | { |
808 | if (!blkid) |
809 | blkid_get_cache(&blkid, NULL); |
810 | |
811 | return blkid_get_tag_value(blkid, "UUID", device); |
812 | } |
813 | |
814 | static enum lineType_e getTypeByKeyword(char *keyword, |
815 | struct configFileInfo *cfi) |
816 | { |
817 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
818 | if (cfi->caseInsensitive) { |
819 | if (!strcasecmp(keyword, kw->key)) |
820 | return kw->type; |
821 | } else { |
822 | if (!strcmp(keyword, kw->key)) |
823 | return kw->type; |
824 | } |
825 | } |
826 | return LT_UNKNOWN; |
827 | } |
828 | |
829 | static struct singleLine *getLineByType(enum lineType_e type, |
830 | struct singleLine *line) |
831 | { |
832 | dbgPrintf("getLineByType(%d): ", type); |
833 | for (; line; line = line->next) { |
834 | dbgPrintf("%d:%s ", line->type, |
835 | line->numElements ? line->elements[0]. |
836 | item : "(empty)"); |
837 | if (line->type & type) |
838 | break; |
839 | } |
840 | dbgPrintf(line ? "\n" : " (failed)\n"); |
841 | return line; |
842 | } |
843 | |
844 | static int isBracketedTitle(struct singleLine *line) |
845 | { |
846 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
847 | int len = strlen(line->elements[0].item); |
848 | if (*(line->elements[0].item + len - 1) == ']') { |
849 | /* FIXME: this is a hack... */ |
850 | if (strcmp(line->elements[0].item, "[defaultboot]")) { |
851 | return 1; |
852 | } |
853 | } |
854 | } |
855 | return 0; |
856 | } |
857 | |
858 | static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi) |
859 | { |
860 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
861 | (cfi->titleBracketed && isBracketedTitle(line)); |
862 | } |
863 | |
864 | /* extract the title from within brackets (for zipl) */ |
865 | static char *extractTitle(struct grubConfig *cfg, struct singleLine *line) |
866 | { |
867 | /* bracketed title... let's extract it */ |
868 | char *title = NULL; |
869 | if (line->type == LT_TITLE) { |
870 | char *tmp = line->elements[cfg->cfi->titlePosition].item; |
871 | if (cfg->cfi->titleBracketed) { |
872 | tmp++; |
873 | title = strdup(tmp); |
874 | *(title + strlen(title) - 1) = '\0'; |
875 | } else { |
876 | title = strdup(tmp); |
877 | } |
878 | } else if (line->type == LT_MENUENTRY) |
879 | title = strdup(line->elements[1].item); |
880 | else |
881 | return NULL; |
882 | return title; |
883 | } |
884 | |
885 | static int readFile(int fd, char **bufPtr) |
886 | { |
887 | int alloced = 0, size = 0, i = 0; |
888 | char *buf = NULL; |
889 | |
890 | do { |
891 | size += i; |
892 | if ((size + 1024) > alloced) { |
893 | alloced += 4096; |
894 | buf = realloc(buf, alloced + 1); |
895 | } |
896 | } while ((i = read(fd, buf + size, 1024)) > 0); |
897 | |
898 | if (i < 0) { |
899 | fprintf(stderr, _("error reading input: %s\n"), |
900 | strerror(errno)); |
901 | free(buf); |
902 | return 1; |
903 | } |
904 | |
905 | buf = realloc(buf, size + 2); |
906 | if (size == 0) |
907 | buf[size++] = '\n'; |
908 | else if (buf[size - 1] != '\n') |
909 | buf[size++] = '\n'; |
910 | buf[size] = '\0'; |
911 | |
912 | *bufPtr = buf; |
913 | |
914 | return 0; |
915 | } |
916 | |
917 | static void lineInit(struct singleLine *line) |
918 | { |
919 | line->indent = NULL; |
920 | line->elements = NULL; |
921 | line->numElements = 0; |
922 | line->next = NULL; |
923 | } |
924 | |
925 | struct singleLine *lineDup(struct singleLine *line) |
926 | { |
927 | struct singleLine *newLine = malloc(sizeof(*newLine)); |
928 | |
929 | newLine->indent = strdup(line->indent); |
930 | newLine->next = NULL; |
931 | newLine->type = line->type; |
932 | newLine->numElements = line->numElements; |
933 | newLine->elements = malloc(sizeof(*newLine->elements) * |
934 | newLine->numElements); |
935 | |
936 | for (int i = 0; i < newLine->numElements; i++) { |
937 | newLine->elements[i].indent = strdup(line->elements[i].indent); |
938 | newLine->elements[i].item = strdup(line->elements[i].item); |
939 | } |
940 | |
941 | return newLine; |
942 | } |
943 | |
944 | static void lineFree(struct singleLine *line) |
945 | { |
946 | if (line->indent) |
947 | free(line->indent); |
948 | |
949 | for (int i = 0; i < line->numElements; i++) { |
950 | free(line->elements[i].item); |
951 | free(line->elements[i].indent); |
952 | } |
953 | |
954 | if (line->elements) |
955 | free(line->elements); |
956 | lineInit(line); |
957 | } |
958 | |
959 | static int lineWrite(FILE * out, struct singleLine *line, |
960 | struct configFileInfo *cfi) |
961 | { |
962 | if (fprintf(out, "%s", line->indent) == -1) |
963 | return -1; |
964 | |
965 | for (int i = 0; i < line->numElements; i++) { |
966 | /* Need to handle this, because we strip the quotes from |
967 | * menuentry when read it. */ |
968 | if (line->type == LT_MENUENTRY && i == 1) { |
969 | if (!isquote(*line->elements[i].item)) { |
970 | int substring = 0; |
971 | /* If the line contains nested quotes, we did |
972 | * not strip the "interna" quotes and we must |
973 | * use the right quotes again when writing |
974 | * the updated file. */ |
975 | for (int j = i; j < line->numElements; j++) { |
976 | if (strchr(line->elements[i].item, '\'') |
977 | != NULL) { |
978 | substring = 1; |
979 | fprintf(out, "\"%s\"", |
980 | line->elements[i].item); |
981 | break; |
982 | } |
983 | } |
984 | if (!substring) |
985 | fprintf(out, "\'%s\'", |
986 | line->elements[i].item); |
987 | } else { |
988 | fprintf(out, "%s", line->elements[i].item); |
989 | } |
990 | fprintf(out, "%s", line->elements[i].indent); |
991 | |
992 | continue; |
993 | } |
994 | |
995 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) |
996 | if (fputc('"', out) == EOF) |
997 | return -1; |
998 | |
999 | if (fprintf(out, "%s", line->elements[i].item) == -1) |
1000 | return -1; |
1001 | if (i < line->numElements - 1) |
1002 | if (fprintf(out, "%s", line->elements[i].indent) == -1) |
1003 | return -1; |
1004 | } |
1005 | |
1006 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1007 | if (fputc('"', out) == EOF) |
1008 | return -1; |
1009 | |
1010 | if (fprintf(out, "\n") == -1) |
1011 | return -1; |
1012 | |
1013 | return 0; |
1014 | } |
1015 | |
1016 | /* we've guaranteed that the buffer ends w/ \n\0 */ |
1017 | static int getNextLine(char **bufPtr, struct singleLine *line, |
1018 | struct configFileInfo *cfi) |
1019 | { |
1020 | char *end; |
1021 | char *start = *bufPtr; |
1022 | char *chptr; |
1023 | int elementsAlloced = 0; |
1024 | struct lineElement *element; |
1025 | int first = 1; |
1026 | |
1027 | lineFree(line); |
1028 | |
1029 | end = strchr(start, '\n'); |
1030 | *end = '\0'; |
1031 | *bufPtr = end + 1; |
1032 | |
1033 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; |
1034 | |
1035 | line->indent = strndup(start, chptr - start); |
1036 | start = chptr; |
1037 | |
1038 | while (start < end) { |
1039 | /* we know !isspace(*start) */ |
1040 | |
1041 | if (elementsAlloced == line->numElements) { |
1042 | elementsAlloced += 5; |
1043 | line->elements = realloc(line->elements, |
1044 | sizeof(*line->elements) * |
1045 | elementsAlloced); |
1046 | } |
1047 | |
1048 | element = line->elements + line->numElements; |
1049 | |
1050 | chptr = start; |
1051 | while (*chptr && !isspace(*chptr)) { |
1052 | if (first && *chptr == '=') |
1053 | break; |
1054 | chptr++; |
1055 | } |
1056 | element->item = strndup(start, chptr - start); |
1057 | start = chptr; |
1058 | |
1059 | /* lilo actually accepts the pathological case of |
1060 | * append = " foo " */ |
1061 | if (*start == '=') |
1062 | chptr = start + 1; |
1063 | else |
1064 | chptr = start; |
1065 | |
1066 | do { |
1067 | for (; *chptr && isspace(*chptr); chptr++) ; |
1068 | if (*chptr == '=') |
1069 | chptr = chptr + 1; |
1070 | } while (isspace(*chptr)); |
1071 | |
1072 | element->indent = strndup(start, chptr - start); |
1073 | start = chptr; |
1074 | |
1075 | line->numElements++; |
1076 | first = 0; |
1077 | } |
1078 | |
1079 | if (!line->numElements) |
1080 | line->type = LT_WHITESPACE; |
1081 | else { |
1082 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
1083 | if (line->type == LT_UNKNOWN) { |
1084 | /* zipl does [title] instead of something reasonable |
1085 | * like all the other boot loaders. kind of ugly */ |
1086 | if (cfi->titleBracketed && isBracketedTitle(line)) { |
1087 | line->type = LT_TITLE; |
1088 | } |
1089 | |
1090 | /* this is awkward, but we need to be able to handle |
1091 | * keywords that begin with a # (specifically for |
1092 | * #boot in grub.conf), but still make comments lines |
1093 | * with no elements (everything stored in the indent |
1094 | */ |
1095 | if (*line->elements[0].item == '#') { |
1096 | char *fullLine; |
1097 | int len; |
1098 | |
1099 | len = strlen(line->indent); |
1100 | for (int i = 0; i < line->numElements; i++) |
1101 | len += strlen(line->elements[i].item) + |
1102 | strlen(line->elements[i].indent); |
1103 | |
1104 | fullLine = malloc(len + 1); |
1105 | strcpy(fullLine, line->indent); |
1106 | free(line->indent); |
1107 | line->indent = fullLine; |
1108 | |
1109 | for (int i = 0; i < line->numElements; i++) { |
1110 | strcat(fullLine, |
1111 | line->elements[i].item); |
1112 | strcat(fullLine, |
1113 | line->elements[i].indent); |
1114 | free(line->elements[i].item); |
1115 | free(line->elements[i].indent); |
1116 | } |
1117 | |
1118 | line->type = LT_WHITESPACE; |
1119 | line->numElements = 0; |
1120 | } |
1121 | } else { |
1122 | struct keywordTypes *kw; |
1123 | |
1124 | kw = getKeywordByType(line->type, cfi); |
1125 | |
1126 | /* space isn't the only separator, we need to split |
1127 | * elements up more |
1128 | */ |
1129 | if (!isspace(kw->separatorChar)) { |
1130 | char indent[2] = ""; |
1131 | indent[0] = kw->separatorChar; |
1132 | for (int i = 1; i < line->numElements; i++) { |
1133 | char *p; |
1134 | int numNewElements; |
1135 | |
1136 | numNewElements = 0; |
1137 | p = line->elements[i].item; |
1138 | while (*p != '\0') { |
1139 | if (*p == kw->separatorChar) |
1140 | numNewElements++; |
1141 | p++; |
1142 | } |
1143 | if (line->numElements + |
1144 | numNewElements >= elementsAlloced) { |
1145 | elementsAlloced += |
1146 | numNewElements + 5; |
1147 | line->elements = |
1148 | realloc(line->elements, |
1149 | sizeof(*line-> |
1150 | elements) * |
1151 | elementsAlloced); |
1152 | } |
1153 | |
1154 | for (int j = line->numElements; j > i; |
1155 | j--) { |
1156 | line->elements[j + |
1157 | numNewElements] = |
1158 | line->elements[j]; |
1159 | } |
1160 | line->numElements += numNewElements; |
1161 | |
1162 | p = line->elements[i].item; |
1163 | while (*p != '\0') { |
1164 | |
1165 | while (*p != kw->separatorChar |
1166 | && *p != '\0') |
1167 | p++; |
1168 | if (*p == '\0') { |
1169 | break; |
1170 | } |
1171 | |
1172 | line->elements[i + 1].indent = |
1173 | line->elements[i].indent; |
1174 | line->elements[i].indent = |
1175 | strdup(indent); |
1176 | *p++ = '\0'; |
1177 | i++; |
1178 | line->elements[i].item = |
1179 | strdup(p); |
1180 | } |
1181 | } |
1182 | } |
1183 | } |
1184 | } |
1185 | |
1186 | return 0; |
1187 | } |
1188 | |
1189 | static int isnumber(const char *s) |
1190 | { |
1191 | int i; |
1192 | for (i = 0; s[i] != '\0'; i++) |
1193 | if (s[i] < '0' || s[i] > '9') |
1194 | return 0; |
1195 | return i; |
1196 | } |
1197 | |
1198 | static struct grubConfig *readConfig(const char *inName, |
1199 | struct configFileInfo *cfi) |
1200 | { |
1201 | int in; |
1202 | char *incoming = NULL, *head; |
1203 | int rc; |
1204 | int sawEntry = 0; |
1205 | int movedLine = 0; |
1206 | struct grubConfig *cfg; |
1207 | struct singleLine *last = NULL, *line, *defaultLine = NULL; |
1208 | char *end; |
1209 | struct singleEntry *entry = NULL; |
1210 | int len; |
1211 | char *buf; |
1212 | |
1213 | if (inName == NULL) { |
1214 | printf("Could not find bootloader configuration\n"); |
1215 | exit(1); |
1216 | } else if (!strcmp(inName, "-")) { |
1217 | in = 0; |
1218 | } else { |
1219 | if ((in = open(inName, O_RDONLY)) < 0) { |
1220 | fprintf(stderr, _("error opening %s for read: %s\n"), |
1221 | inName, strerror(errno)); |
1222 | return NULL; |
1223 | } |
1224 | } |
1225 | |
1226 | rc = readFile(in, &incoming); |
1227 | close(in); |
1228 | if (rc) |
1229 | return NULL; |
1230 | |
1231 | head = incoming; |
1232 | cfg = malloc(sizeof(*cfg)); |
1233 | cfg->primaryIndent = strdup(""); |
1234 | cfg->secondaryIndent = strdup("\t"); |
1235 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; |
1236 | cfg->cfi = cfi; |
1237 | cfg->theLines = NULL; |
1238 | cfg->entries = NULL; |
1239 | cfg->fallbackImage = 0; |
1240 | |
1241 | /* copy everything we have */ |
1242 | while (*head) { |
1243 | line = malloc(sizeof(*line)); |
1244 | lineInit(line); |
1245 | |
1246 | if (getNextLine(&head, line, cfi)) { |
1247 | free(line); |
1248 | /* XXX memory leak of everything in cfg */ |
1249 | return NULL; |
1250 | } |
1251 | |
1252 | if (!sawEntry && line->numElements) { |
1253 | free(cfg->primaryIndent); |
1254 | cfg->primaryIndent = strdup(line->indent); |
1255 | } else if (line->numElements) { |
1256 | free(cfg->secondaryIndent); |
1257 | cfg->secondaryIndent = strdup(line->indent); |
1258 | } |
1259 | |
1260 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
1261 | sawEntry = 1; |
1262 | if (!entry) { |
1263 | cfg->entries = malloc(sizeof(*entry)); |
1264 | entry = cfg->entries; |
1265 | } else { |
1266 | entry->next = malloc(sizeof(*entry)); |
1267 | entry = entry->next; |
1268 | } |
1269 | |
1270 | entry->skip = 0; |
1271 | entry->multiboot = 0; |
1272 | entry->lines = NULL; |
1273 | entry->next = NULL; |
1274 | } |
1275 | |
1276 | if (line->type == LT_SET_VARIABLE) { |
1277 | dbgPrintf("found 'set' command (%d elements): ", |
1278 | line->numElements); |
1279 | dbgPrintf("%s", line->indent); |
1280 | for (int i = 0; i < line->numElements; i++) |
1281 | dbgPrintf("\"%s\"%s", line->elements[i].item, |
1282 | line->elements[i].indent); |
1283 | dbgPrintf("\n"); |
1284 | struct keywordTypes *kwType = |
1285 | getKeywordByType(LT_DEFAULT, cfi); |
1286 | if (kwType && line->numElements == 3 |
1287 | && !strcmp(line->elements[1].item, kwType->key) |
1288 | && !is_special_grub2_variable(line->elements[2]. |
1289 | item)) { |
1290 | dbgPrintf("Line sets default config\n"); |
1291 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1292 | defaultLine = line; |
1293 | } |
1294 | |
1295 | } else if (iskernel(line->type)) { |
1296 | /* if by some freak chance this is multiboot and the |
1297 | * "module" lines came earlier in the template, make |
1298 | * sure to use LT_HYPER instead of LT_KERNEL now |
1299 | */ |
1300 | if (entry && entry->multiboot) |
1301 | line->type = LT_HYPER; |
1302 | |
1303 | } else if (line->type == LT_MBMODULE) { |
1304 | /* go back and fix the LT_KERNEL line to indicate |
1305 | * LT_HYPER instead, now that we know this is a |
1306 | * multiboot entry. This only applies to grub, but |
1307 | * that's the only place we should find LT_MBMODULE |
1308 | * lines anyway. |
1309 | */ |
1310 | for (struct singleLine * l = entry->lines; l; |
1311 | l = l->next) { |
1312 | if (l->type == LT_HYPER) |
1313 | break; |
1314 | else if (iskernel(l->type)) { |
1315 | l->type = LT_HYPER; |
1316 | break; |
1317 | } |
1318 | } |
1319 | entry->multiboot = 1; |
1320 | |
1321 | } else if (line->type == LT_HYPER) { |
1322 | entry->multiboot = 1; |
1323 | |
1324 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1325 | cfg->fallbackImage = |
1326 | strtol(line->elements[1].item, &end, 10); |
1327 | if (*end) |
1328 | cfg->fallbackImage = -1; |
1329 | |
1330 | } else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted) |
1331 | || (line->type == LT_TITLE |
1332 | && line->numElements > 1)) { |
1333 | /* make the title/default a single argument (undoing |
1334 | * our parsing) */ |
1335 | len = 0; |
1336 | for (int i = 1; i < line->numElements; i++) { |
1337 | len += strlen(line->elements[i].item); |
1338 | len += strlen(line->elements[i].indent); |
1339 | } |
1340 | buf = malloc(len + 1); |
1341 | *buf = '\0'; |
1342 | |
1343 | for (int i = 1; i < line->numElements; i++) { |
1344 | strcat(buf, line->elements[i].item); |
1345 | free(line->elements[i].item); |
1346 | |
1347 | if ((i + 1) != line->numElements) { |
1348 | strcat(buf, line->elements[i].indent); |
1349 | free(line->elements[i].indent); |
1350 | } |
1351 | } |
1352 | |
1353 | line->elements[1].indent = |
1354 | line->elements[line->numElements - 1].indent; |
1355 | line->elements[1].item = buf; |
1356 | line->numElements = 2; |
1357 | } else if (line->type == LT_MENUENTRY && line->numElements > 3) { |
1358 | /* let --remove-kernel="TITLE=what" work */ |
1359 | len = 0; |
1360 | char *extras; |
1361 | char *title; |
1362 | /* initially unseen value */ |
1363 | char quote_char = '\0'; |
1364 | |
1365 | for (int i = 1; i < line->numElements; i++) { |
1366 | len += strlen(line->elements[i].item); |
1367 | len += strlen(line->elements[i].indent); |
1368 | } |
1369 | buf = malloc(len + 1); |
1370 | *buf = '\0'; |
1371 | |
1372 | /* allocate mem for extra flags. */ |
1373 | extras = malloc(len + 1); |
1374 | *extras = '\0'; |
1375 | |
1376 | /* get title. */ |
1377 | for (int i = 0; i < line->numElements; i++) { |
1378 | if (!strcmp |
1379 | (line->elements[i].item, "menuentry")) |
1380 | continue; |
1381 | if (isquote(*line->elements[i].item) |
1382 | && quote_char == '\0') { |
1383 | /* ensure we properly pair off quotes */ |
1384 | quote_char = *line->elements[i].item; |
1385 | title = line->elements[i].item + 1; |
1386 | } else { |
1387 | title = line->elements[i].item; |
1388 | } |
1389 | |
1390 | len = strlen(title); |
1391 | if (title[len - 1] == quote_char) { |
1392 | strncat(buf, title, len - 1); |
1393 | break; |
1394 | } else { |
1395 | strcat(buf, title); |
1396 | strcat(buf, line->elements[i].indent); |
1397 | } |
1398 | } |
1399 | |
1400 | /* get extras */ |
1401 | int count = 0; |
1402 | quote_char = '\0'; |
1403 | for (int i = 0; i < line->numElements; i++) { |
1404 | if (count >= 2) { |
1405 | strcat(extras, line->elements[i].item); |
1406 | strcat(extras, |
1407 | line->elements[i].indent); |
1408 | } |
1409 | |
1410 | if (!strcmp |
1411 | (line->elements[i].item, "menuentry")) |
1412 | continue; |
1413 | |
1414 | /* count ' or ", there should be two in menuentry line. */ |
1415 | if (isquote(*line->elements[i].item) |
1416 | && quote_char == '\0') { |
1417 | /* ensure we properly pair off quotes */ |
1418 | quote_char = *line->elements[i].item; |
1419 | count++; |
1420 | } |
1421 | |
1422 | len = strlen(line->elements[i].item); |
1423 | |
1424 | if (line->elements[i].item[len - 1] == |
1425 | quote_char) |
1426 | count++; |
1427 | |
1428 | /* ok, we get the final ' or ", others are extras. */ |
1429 | } |
1430 | line->elements[1].indent = |
1431 | line->elements[line->numElements - 2].indent; |
1432 | line->elements[1].item = buf; |
1433 | line->elements[2].indent = |
1434 | line->elements[line->numElements - 2].indent; |
1435 | line->elements[2].item = extras; |
1436 | line->numElements = 3; |
1437 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
1438 | /* Strip off any " which may be present; they'll be |
1439 | * put back on write. This is one of the few (the |
1440 | * only?) places that grubby canonicalizes the output |
1441 | */ |
1442 | if (line->numElements >= 2) { |
1443 | int last, len; |
1444 | |
1445 | if (isquote(*line->elements[1].item)) |
1446 | memmove(line->elements[1].item, |
1447 | line->elements[1].item + 1, |
1448 | strlen(line->elements[1].item + |
1449 | 1) + 1); |
1450 | |
1451 | last = line->numElements - 1; |
1452 | len = strlen(line->elements[last].item) - 1; |
1453 | if (isquote(line->elements[last].item[len])) |
1454 | line->elements[last].item[len] = '\0'; |
1455 | } |
1456 | } |
1457 | |
1458 | if (line->type == LT_DEFAULT && line->numElements == 2) { |
1459 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1460 | defaultLine = line; |
1461 | } |
1462 | |
1463 | /* If we find a generic config option which should live at the |
1464 | top of the file, move it there. Old versions of grubby were |
1465 | probably responsible for putting new images in the wrong |
1466 | place in front of it anyway. */ |
1467 | if (sawEntry && line->type == LT_GENERIC) { |
1468 | struct singleLine **l = &cfg->theLines; |
1469 | struct singleLine **last_nonws = &cfg->theLines; |
1470 | while (*l) { |
1471 | if ((*l)->type != LT_WHITESPACE) |
1472 | last_nonws = &((*l)->next); |
1473 | l = &((*l)->next); |
1474 | } |
1475 | line->next = *last_nonws; |
1476 | *last_nonws = line; |
1477 | movedLine = 1; |
1478 | continue; /* without setting 'last' */ |
1479 | } |
1480 | |
1481 | /* If a second line of whitespace happens after a generic |
1482 | * option which was moved, drop it. */ |
1483 | if (movedLine && line->type == LT_WHITESPACE |
1484 | && last->type == LT_WHITESPACE) { |
1485 | lineFree(line); |
1486 | free(line); |
1487 | movedLine = 0; |
1488 | continue; |
1489 | } |
1490 | movedLine = 0; |
1491 | |
1492 | if (sawEntry) { |
1493 | if (!entry->lines) |
1494 | entry->lines = line; |
1495 | else |
1496 | last->next = line; |
1497 | dbgPrintf("readConfig added %s to %p\n", |
1498 | getKeyByType(line->type, cfi), entry); |
1499 | |
1500 | /* we could have seen this outside of an entry... if |
1501 | * so, we ignore it like any other line we don't grok |
1502 | */ |
1503 | if (line->type == LT_ENTRY_END && sawEntry) |
1504 | sawEntry = 0; |
1505 | } else { |
1506 | if (!cfg->theLines) |
1507 | cfg->theLines = line; |
1508 | else |
1509 | last->next = line; |
1510 | dbgPrintf("readConfig added %s to cfg\n", |
1511 | getKeyByType(line->type, cfi)); |
1512 | } |
1513 | |
1514 | last = line; |
1515 | } |
1516 | |
1517 | free(incoming); |
1518 | |
1519 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1520 | if (defaultLine) { |
1521 | if (defaultLine->numElements > 2 && |
1522 | cfi->defaultSupportSaved && |
1523 | !strncmp(defaultLine->elements[2].item, |
1524 | "\"${saved_entry}\"", 16)) { |
1525 | cfg->cfi->defaultIsSaved = 1; |
1526 | cfg->defaultImage = DEFAULT_SAVED_GRUB2; |
1527 | if (cfg->cfi->getEnv) { |
1528 | char *defTitle = |
1529 | cfi->getEnv(cfg->cfi, "saved_entry"); |
1530 | if (defTitle) { |
1531 | int index = 0; |
1532 | if (isnumber(defTitle)) { |
1533 | index = atoi(defTitle); |
1534 | entry = |
1535 | findEntryByIndex(cfg, |
1536 | index); |
1537 | } else { |
1538 | entry = |
1539 | findEntryByTitle(cfg, |
1540 | defTitle, |
1541 | &index); |
1542 | } |
1543 | if (entry) |
1544 | cfg->defaultImage = index; |
1545 | } |
1546 | } |
1547 | } else if (cfi->defaultIsVariable) { |
1548 | char *value = defaultLine->elements[2].item; |
1549 | while (*value && (*value == '"' || *value == '\'' || |
1550 | *value == ' ' || *value == '\t')) |
1551 | value++; |
1552 | cfg->defaultImage = strtol(value, &end, 10); |
1553 | while (*end && (*end == '"' || *end == '\'' || |
1554 | *end == ' ' || *end == '\t')) |
1555 | end++; |
1556 | if (*end) |
1557 | cfg->defaultImage = -1; |
1558 | } else if (cfi->defaultSupportSaved && |
1559 | !strncmp(defaultLine->elements[1].item, "saved", |
1560 | 5)) { |
1561 | cfg->defaultImage = DEFAULT_SAVED; |
1562 | } else if (cfi->defaultIsIndex) { |
1563 | cfg->defaultImage = |
1564 | strtol(defaultLine->elements[1].item, &end, 10); |
1565 | if (*end) |
1566 | cfg->defaultImage = -1; |
1567 | } else if (defaultLine->numElements >= 2) { |
1568 | int i = 0; |
1569 | while ((entry = findEntryByIndex(cfg, i))) { |
1570 | for (line = entry->lines; line; |
1571 | line = line->next) |
1572 | if (line->type == LT_TITLE) |
1573 | break; |
1574 | |
1575 | if (!cfi->titleBracketed) { |
1576 | if (line && (line->numElements >= 2) && |
1577 | !strcmp(defaultLine->elements[1]. |
1578 | item, |
1579 | line->elements[1].item)) |
1580 | break; |
1581 | } else if (line) { |
1582 | if (!strcmp |
1583 | (defaultLine->elements[1].item, |
1584 | extractTitle(cfg, line))) |
1585 | break; |
1586 | } |
1587 | i++; |
1588 | entry = NULL; |
1589 | } |
1590 | |
1591 | if (entry) { |
1592 | cfg->defaultImage = i; |
1593 | } else { |
1594 | cfg->defaultImage = -1; |
1595 | } |
1596 | } |
1597 | } else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) { |
1598 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); |
1599 | if (defTitle) { |
1600 | int index = 0; |
1601 | if (isnumber(defTitle)) { |
1602 | index = atoi(defTitle); |
1603 | entry = findEntryByIndex(cfg, index); |
1604 | } else { |
1605 | entry = findEntryByTitle(cfg, defTitle, &index); |
1606 | } |
1607 | if (entry) |
1608 | cfg->defaultImage = index; |
1609 | } |
1610 | } else { |
1611 | cfg->defaultImage = 0; |
1612 | } |
1613 | |
1614 | return cfg; |
1615 | } |
1616 | |
1617 | static void writeDefault(FILE * out, char *indent, |
1618 | char *separator, struct grubConfig *cfg) |
1619 | { |
1620 | struct singleEntry *entry; |
1621 | struct singleLine *line; |
1622 | int i; |
1623 | |
1624 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) |
1625 | return; |
1626 | |
1627 | if (cfg->defaultImage == DEFAULT_SAVED) |
1628 | fprintf(out, "%sdefault%ssaved\n", indent, separator); |
1629 | else if (cfg->cfi->defaultIsSaved) { |
1630 | fprintf(out, "%sset default=\"${saved_entry}\"\n", indent); |
1631 | if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) { |
1632 | char *title; |
1633 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
1634 | line = getLineByType(LT_MENUENTRY, entry->lines); |
1635 | if (!line) |
1636 | line = getLineByType(LT_TITLE, entry->lines); |
1637 | if (line) { |
1638 | title = extractTitle(cfg, line); |
1639 | if (title) |
1640 | cfg->cfi->setEnv(cfg->cfi, |
1641 | "saved_entry", title); |
1642 | } |
1643 | } |
1644 | } else if (cfg->defaultImage > -1) { |
1645 | if (cfg->cfi->defaultIsIndex) { |
1646 | if (cfg->cfi->defaultIsVariable) { |
1647 | fprintf(out, "%sset default=\"%d\"\n", indent, |
1648 | cfg->defaultImage); |
1649 | } else { |
1650 | fprintf(out, "%sdefault%s%d\n", indent, |
1651 | separator, cfg->defaultImage); |
1652 | } |
1653 | } else { |
1654 | int image = cfg->defaultImage; |
1655 | |
1656 | entry = cfg->entries; |
1657 | while (entry && entry->skip) |
1658 | entry = entry->next; |
1659 | |
1660 | i = 0; |
1661 | while (entry && i < image) { |
1662 | entry = entry->next; |
1663 | |
1664 | while (entry && entry->skip) |
1665 | entry = entry->next; |
1666 | i++; |
1667 | } |
1668 | |
1669 | if (!entry) |
1670 | return; |
1671 | |
1672 | line = getLineByType(LT_TITLE, entry->lines); |
1673 | |
1674 | if (line && line->numElements >= 2) |
1675 | fprintf(out, "%sdefault%s%s\n", indent, |
1676 | separator, line->elements[1].item); |
1677 | else if (line && (line->numElements == 1) |
1678 | && cfg->cfi->titleBracketed) { |
1679 | char *title = extractTitle(cfg, line); |
1680 | if (title) { |
1681 | fprintf(out, "%sdefault%s%s\n", indent, |
1682 | separator, title); |
1683 | free(title); |
1684 | } |
1685 | } |
1686 | } |
1687 | } |
1688 | } |
1689 | |
1690 | static int writeConfig(struct grubConfig *cfg, char *outName, |
1691 | const char *prefix) |
1692 | { |
1693 | FILE *out; |
1694 | struct singleLine *line; |
1695 | struct singleEntry *entry; |
1696 | char *tmpOutName; |
1697 | int needs = MAIN_DEFAULT; |
1698 | struct stat sb; |
1699 | int i; |
1700 | |
1701 | if (!strcmp(outName, "-")) { |
1702 | out = stdout; |
1703 | tmpOutName = NULL; |
1704 | } else { |
1705 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { |
1706 | char *buf; |
1707 | int len = 256; |
1708 | int rc; |
1709 | |
1710 | /* most likely the symlink is relative, so change our |
1711 | directory to the dir of the symlink */ |
1712 | char *dir = strdupa(outName); |
1713 | rc = chdir(dirname(dir)); |
1714 | do { |
1715 | buf = alloca(len + 1); |
1716 | rc = readlink(basename(outName), buf, len); |
1717 | if (rc == len) |
1718 | len += 256; |
1719 | } while (rc == len); |
1720 | |
1721 | if (rc < 0) { |
1722 | fprintf(stderr, |
1723 | _ |
1724 | ("grubby: error readlink link %s: %s\n"), |
1725 | outName, strerror(errno)); |
1726 | return 1; |
1727 | } |
1728 | |
1729 | outName = buf; |
1730 | outName[rc] = '\0'; |
1731 | } |
1732 | |
1733 | tmpOutName = alloca(strlen(outName) + 2); |
1734 | sprintf(tmpOutName, "%s-", outName); |
1735 | out = fopen(tmpOutName, "w"); |
1736 | if (!out) { |
1737 | fprintf(stderr, _("grubby: error creating %s: %s\n"), |
1738 | tmpOutName, strerror(errno)); |
1739 | return 1; |
1740 | } |
1741 | |
1742 | if (!stat(outName, &sb)) { |
1743 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { |
1744 | fprintf(stderr, |
1745 | _ |
1746 | ("grubby: error setting perms on %s: %s\n"), |
1747 | tmpOutName, strerror(errno)); |
1748 | fclose(out); |
1749 | unlink(tmpOutName); |
1750 | return 1; |
1751 | } |
1752 | } |
1753 | } |
1754 | |
1755 | line = cfg->theLines; |
1756 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1757 | while (line) { |
1758 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1759 | line->numElements == 3 && |
1760 | !strcmp(line->elements[1].item, defaultKw->key) && |
1761 | !is_special_grub2_variable(line->elements[2].item)) { |
1762 | writeDefault(out, line->indent, |
1763 | line->elements[0].indent, cfg); |
1764 | needs &= ~MAIN_DEFAULT; |
1765 | } else if (line->type == LT_DEFAULT) { |
1766 | writeDefault(out, line->indent, |
1767 | line->elements[0].indent, cfg); |
1768 | needs &= ~MAIN_DEFAULT; |
1769 | } else if (line->type == LT_FALLBACK) { |
1770 | if (cfg->fallbackImage > -1) |
1771 | fprintf(out, "%s%s%s%d\n", line->indent, |
1772 | line->elements[0].item, |
1773 | line->elements[0].indent, |
1774 | cfg->fallbackImage); |
1775 | } else { |
1776 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1777 | fprintf(stderr, |
1778 | _("grubby: error writing %s: %s\n"), |
1779 | tmpOutName, strerror(errno)); |
1780 | fclose(out); |
1781 | unlink(tmpOutName); |
1782 | return 1; |
1783 | } |
1784 | } |
1785 | |
1786 | line = line->next; |
1787 | } |
1788 | |
1789 | if (needs & MAIN_DEFAULT) { |
1790 | writeDefault(out, cfg->primaryIndent, "=", cfg); |
1791 | needs &= ~MAIN_DEFAULT; |
1792 | } |
1793 | |
1794 | i = 0; |
1795 | while ((entry = findEntryByIndex(cfg, i++))) { |
1796 | if (entry->skip) |
1797 | continue; |
1798 | |
1799 | line = entry->lines; |
1800 | while (line) { |
1801 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1802 | fprintf(stderr, |
1803 | _("grubby: error writing %s: %s\n"), |
1804 | tmpOutName, strerror(errno)); |
1805 | fclose(out); |
1806 | unlink(tmpOutName); |
1807 | return 1; |
1808 | } |
1809 | line = line->next; |
1810 | } |
1811 | } |
1812 | |
1813 | if (tmpOutName) { |
1814 | if (rename(tmpOutName, outName)) { |
1815 | fprintf(stderr, |
1816 | _("grubby: error moving %s to %s: %s\n"), |
1817 | tmpOutName, outName, strerror(errno)); |
1818 | unlink(outName); |
1819 | return 1; |
1820 | } |
1821 | } |
1822 | |
1823 | return 0; |
1824 | } |
1825 | |
1826 | static int numEntries(struct grubConfig *cfg) |
1827 | { |
1828 | int i = 0; |
1829 | struct singleEntry *entry; |
1830 | |
1831 | entry = cfg->entries; |
1832 | while (entry) { |
1833 | if (!entry->skip) |
1834 | i++; |
1835 | entry = entry->next; |
1836 | } |
1837 | return i; |
1838 | } |
1839 | |
1840 | static char *findDiskForRoot() |
1841 | { |
1842 | int fd; |
1843 | char buf[65536]; |
1844 | char *devname; |
1845 | char *chptr; |
1846 | int rc; |
1847 | |
1848 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { |
1849 | fprintf(stderr, "grubby: failed to open %s: %s\n", |
1850 | _PATH_MOUNTED, strerror(errno)); |
1851 | return NULL; |
1852 | } |
1853 | |
1854 | rc = read(fd, buf, sizeof(buf) - 1); |
1855 | if (rc <= 0) { |
1856 | fprintf(stderr, "grubby: failed to read %s: %s\n", |
1857 | _PATH_MOUNTED, strerror(errno)); |
1858 | close(fd); |
1859 | return NULL; |
1860 | } |
1861 | close(fd); |
1862 | buf[rc] = '\0'; |
1863 | chptr = buf; |
1864 | |
1865 | char *foundanswer = NULL; |
1866 | |
1867 | while (chptr && chptr != buf + rc) { |
1868 | devname = chptr; |
1869 | |
1870 | /* |
1871 | * The first column of a mtab entry is the device, but if the |
1872 | * entry is a special device it won't start with /, so move |
1873 | * on to the next line. |
1874 | */ |
1875 | if (*devname != '/') { |
1876 | chptr = strchr(chptr, '\n'); |
1877 | if (chptr) |
1878 | chptr++; |
1879 | continue; |
1880 | } |
1881 | |
1882 | /* Seek to the next space */ |
1883 | chptr = strchr(chptr, ' '); |
1884 | if (!chptr) { |
1885 | fprintf(stderr, "grubby: error parsing %s: %s\n", |
1886 | _PATH_MOUNTED, strerror(errno)); |
1887 | return NULL; |
1888 | } |
1889 | |
1890 | /* |
1891 | * The second column of a mtab entry is the mount point, we |
1892 | * are looking for '/' obviously. |
1893 | */ |
1894 | if (*(++chptr) == '/' && *(++chptr) == ' ') { |
1895 | /* remember the last / entry in mtab */ |
1896 | foundanswer = devname; |
1897 | } |
1898 | |
1899 | /* Next line */ |
1900 | chptr = strchr(chptr, '\n'); |
1901 | if (chptr) |
1902 | chptr++; |
1903 | } |
1904 | |
1905 | /* Return the last / entry found */ |
1906 | if (foundanswer) { |
1907 | chptr = strchr(foundanswer, ' '); |
1908 | *chptr = '\0'; |
1909 | return strdup(foundanswer); |
1910 | } |
1911 | |
1912 | return NULL; |
1913 | } |
1914 | |
1915 | void printEntry(struct singleEntry *entry, FILE * f) |
1916 | { |
1917 | int i; |
1918 | struct singleLine *line; |
1919 | |
1920 | for (line = entry->lines; line; line = line->next) { |
1921 | log_message(f, "DBG: %s", line->indent); |
1922 | for (i = 0; i < line->numElements; i++) { |
1923 | /* Need to handle this, because we strip the quotes from |
1924 | * menuentry when read it. */ |
1925 | if (line->type == LT_MENUENTRY && i == 1) { |
1926 | if (!isquote(*line->elements[i].item)) |
1927 | log_message(f, "\'%s\'", |
1928 | line->elements[i].item); |
1929 | else |
1930 | log_message(f, "%s", |
1931 | line->elements[i].item); |
1932 | log_message(f, "%s", line->elements[i].indent); |
1933 | |
1934 | continue; |
1935 | } |
1936 | |
1937 | log_message(f, "%s%s", |
1938 | line->elements[i].item, |
1939 | line->elements[i].indent); |
1940 | } |
1941 | log_message(f, "\n"); |
1942 | } |
1943 | } |
1944 | |
1945 | void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt, |
1946 | ...) |
1947 | { |
1948 | static int once; |
1949 | va_list argp, argq; |
1950 | |
1951 | va_start(argp, fmt); |
1952 | |
1953 | va_copy(argq, argp); |
1954 | if (!once) { |
1955 | log_time(NULL); |
1956 | log_message(NULL, "command line: %s\n", saved_command_line); |
1957 | } |
1958 | log_message(NULL, "DBG: Image entry %s: ", |
1959 | okay ? "succeeded" : "failed"); |
1960 | log_vmessage(NULL, fmt, argq); |
1961 | |
1962 | printEntry(entry, NULL); |
1963 | va_end(argq); |
1964 | |
1965 | if (!debug) { |
1966 | once = 1; |
1967 | va_end(argp); |
1968 | return; |
1969 | } |
1970 | |
1971 | if (okay) { |
1972 | va_end(argp); |
1973 | return; |
1974 | } |
1975 | |
1976 | if (!once) |
1977 | log_message(stderr, "DBG: command line: %s\n", |
1978 | saved_command_line); |
1979 | once = 1; |
1980 | fprintf(stderr, "DBG: Image entry failed: "); |
1981 | vfprintf(stderr, fmt, argp); |
1982 | printEntry(entry, stderr); |
1983 | va_end(argp); |
1984 | } |
1985 | |
1986 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
1987 | |
1988 | static int endswith(const char *s, char c) |
1989 | { |
1990 | int slen; |
1991 | |
1992 | if (!s || !s[0]) |
1993 | return 0; |
1994 | slen = strlen(s) - 1; |
1995 | |
1996 | return s[slen] == c; |
1997 | } |
1998 | |
1999 | int suitableImage(struct singleEntry *entry, const char *bootPrefix, |
2000 | int skipRemoved, int flags) |
2001 | { |
2002 | struct singleLine *line; |
2003 | char *fullName; |
2004 | int i; |
2005 | char *dev; |
2006 | char *rootspec; |
2007 | char *rootdev; |
2008 | |
2009 | if (skipRemoved && entry->skip) { |
2010 | notSuitablePrintf(entry, 0, "marked to skip\n"); |
2011 | return 0; |
2012 | } |
2013 | |
2014 | line = |
2015 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2016 | entry->lines); |
2017 | if (!line) { |
2018 | notSuitablePrintf(entry, 0, "no line found\n"); |
2019 | return 0; |
2020 | } |
2021 | if (line->numElements < 2) { |
2022 | notSuitablePrintf(entry, 0, "line has only %d elements\n", |
2023 | line->numElements); |
2024 | return 0; |
2025 | } |
2026 | |
2027 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
2028 | notSuitablePrintf(entry, 1, "\n"); |
2029 | return 1; |
2030 | } |
2031 | |
2032 | fullName = alloca(strlen(bootPrefix) + |
2033 | strlen(line->elements[1].item) + 1); |
2034 | rootspec = getRootSpecifier(line->elements[1].item); |
2035 | int rootspec_offset = rootspec ? strlen(rootspec) : 0; |
2036 | int hasslash = endswith(bootPrefix, '/') || |
2037 | beginswith(line->elements[1].item + rootspec_offset, '/'); |
2038 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", |
2039 | line->elements[1].item + rootspec_offset); |
2040 | if (access(fullName, R_OK)) { |
2041 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); |
2042 | return 0; |
2043 | } |
2044 | for (i = 2; i < line->numElements; i++) |
2045 | if (!strncasecmp(line->elements[i].item, "root=", 5)) |
2046 | break; |
2047 | if (i < line->numElements) { |
2048 | dev = line->elements[i].item + 5; |
2049 | } else { |
2050 | /* look for a lilo style LT_ROOT line */ |
2051 | line = getLineByType(LT_ROOT, entry->lines); |
2052 | |
2053 | if (line && line->numElements >= 2) { |
2054 | dev = line->elements[1].item; |
2055 | } else { |
2056 | /* didn't succeed in finding a LT_ROOT, let's try |
2057 | * LT_KERNELARGS. grub+multiboot uses LT_MBMODULE |
2058 | * for the args, so check that too. |
2059 | */ |
2060 | line = |
2061 | getLineByType(LT_KERNELARGS | LT_MBMODULE, |
2062 | entry->lines); |
2063 | |
2064 | /* failed to find one */ |
2065 | if (!line) { |
2066 | notSuitablePrintf(entry, 0, "no line found\n"); |
2067 | return 0; |
2068 | } |
2069 | |
2070 | for (i = 1; i < line->numElements; i++) |
2071 | if (!strncasecmp |
2072 | (line->elements[i].item, "root=", 5)) |
2073 | break; |
2074 | if (i < line->numElements) |
2075 | dev = line->elements[i].item + 5; |
2076 | else { |
2077 | notSuitablePrintf(entry, 0, |
2078 | "no root= entry found\n"); |
2079 | /* it failed too... can't find root= */ |
2080 | return 0; |
2081 | } |
2082 | } |
2083 | } |
2084 | |
2085 | dev = getpathbyspec(dev); |
2086 | if (!getpathbyspec(dev)) { |
2087 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", |
2088 | dev); |
2089 | return 0; |
2090 | } else |
2091 | dev = getpathbyspec(dev); |
2092 | |
2093 | rootdev = findDiskForRoot(); |
2094 | if (!rootdev) { |
2095 | notSuitablePrintf(entry, 0, "can't find root device\n"); |
2096 | return 0; |
2097 | } |
2098 | |
2099 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
2100 | notSuitablePrintf(entry, 0, |
2101 | "uuid missing: rootdev %s, dev %s\n", |
2102 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2103 | free(rootdev); |
2104 | return 0; |
2105 | } |
2106 | |
2107 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
2108 | notSuitablePrintf(entry, 0, |
2109 | "uuid mismatch: rootdev %s, dev %s\n", |
2110 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2111 | free(rootdev); |
2112 | return 0; |
2113 | } |
2114 | |
2115 | free(rootdev); |
2116 | notSuitablePrintf(entry, 1, "\n"); |
2117 | |
2118 | return 1; |
2119 | } |
2120 | |
2121 | /* returns the first match on or after the one pointed to by index (if index |
2122 | is not NULL) which is not marked as skip */ |
2123 | struct singleEntry *findEntryByPath(struct grubConfig *config, |
2124 | const char *kernel, const char *prefix, |
2125 | int *index) |
2126 | { |
2127 | struct singleEntry *entry = NULL; |
2128 | struct singleLine *line; |
2129 | int i; |
2130 | char *chptr; |
2131 | char *rootspec = NULL; |
2132 | enum lineType_e checkType = LT_KERNEL; |
2133 | |
2134 | if (isdigit(*kernel)) { |
2135 | int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); |
2136 | |
2137 | i = 0; |
2138 | indexVars[i] = strtol(kernel, &chptr, 10); |
2139 | while (*chptr == ',') { |
2140 | i++; |
2141 | kernel = chptr + 1; |
2142 | indexVars[i] = strtol(kernel, &chptr, 10); |
2143 | } |
2144 | |
2145 | if (*chptr) { |
2146 | /* can't parse it, bail */ |
2147 | return NULL; |
2148 | } |
2149 | |
2150 | indexVars[i + 1] = -1; |
2151 | |
2152 | i = 0; |
2153 | if (index) { |
2154 | while (i < *index) { |
2155 | i++; |
2156 | if (indexVars[i] == -1) |
2157 | return NULL; |
2158 | } |
2159 | } |
2160 | |
2161 | entry = findEntryByIndex(config, indexVars[i]); |
2162 | if (!entry) |
2163 | return NULL; |
2164 | |
2165 | line = |
2166 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
2167 | LT_KERNEL_16, entry->lines); |
2168 | if (!line) |
2169 | return NULL; |
2170 | |
2171 | if (index) |
2172 | *index = indexVars[i]; |
2173 | return entry; |
2174 | } |
2175 | |
2176 | if (!strcmp(kernel, "DEFAULT")) { |
2177 | if (index && *index > config->defaultImage) { |
2178 | entry = NULL; |
2179 | } else { |
2180 | entry = findEntryByIndex(config, config->defaultImage); |
2181 | if (entry && entry->skip) |
2182 | entry = NULL; |
2183 | else if (index) |
2184 | *index = config->defaultImage; |
2185 | } |
2186 | } else if (!strcmp(kernel, "ALL")) { |
2187 | if (index) |
2188 | i = *index; |
2189 | else |
2190 | i = 0; |
2191 | |
2192 | while ((entry = findEntryByIndex(config, i))) { |
2193 | if (!entry->skip) |
2194 | break; |
2195 | i++; |
2196 | } |
2197 | |
2198 | if (entry && index) |
2199 | *index = i; |
2200 | } else { |
2201 | if (index) |
2202 | i = *index; |
2203 | else |
2204 | i = 0; |
2205 | |
2206 | if (!strncmp(kernel, "TITLE=", 6)) { |
2207 | prefix = ""; |
2208 | checkType = LT_TITLE | LT_MENUENTRY; |
2209 | kernel += 6; |
2210 | } |
2211 | |
2212 | for (entry = findEntryByIndex(config, i); entry; |
2213 | entry = entry->next, i++) { |
2214 | if (entry->skip) |
2215 | continue; |
2216 | |
2217 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", |
2218 | checkType, kernel, entry); |
2219 | |
2220 | /* check all the lines matching checkType */ |
2221 | for (line = entry->lines; line; line = line->next) { |
2222 | enum lineType_e ct = checkType; |
2223 | if (entry->multiboot && checkType == LT_KERNEL) |
2224 | ct = LT_KERNEL | LT_KERNEL_EFI | |
2225 | LT_MBMODULE | LT_HYPER | |
2226 | LT_KERNEL_16; |
2227 | else if (checkType & LT_KERNEL) |
2228 | ct = checkType | LT_KERNEL_EFI | |
2229 | LT_KERNEL_16; |
2230 | line = getLineByType(ct, line); |
2231 | if (!line) |
2232 | break; /* not found in this entry */ |
2233 | |
2234 | if (line && line->type != LT_MENUENTRY && |
2235 | line->numElements >= 2) { |
2236 | rootspec = |
2237 | getRootSpecifier(line->elements[1]. |
2238 | item); |
2239 | if (!strcmp |
2240 | (line->elements[1].item + |
2241 | ((rootspec != |
2242 | NULL) ? strlen(rootspec) : 0), |
2243 | kernel + strlen(prefix))) |
2244 | break; |
2245 | } |
2246 | if (line->type == LT_MENUENTRY && |
2247 | !strcmp(line->elements[1].item, kernel)) |
2248 | break; |
2249 | } |
2250 | |
2251 | /* make sure this entry has a kernel identifier; this skips |
2252 | * non-Linux boot entries (could find netbsd etc, though, which is |
2253 | * unfortunate) |
2254 | */ |
2255 | if (line |
2256 | && getLineByType(LT_KERNEL | LT_HYPER | |
2257 | LT_KERNEL_EFI | LT_KERNEL_16, |
2258 | entry->lines)) |
2259 | break; /* found 'im! */ |
2260 | } |
2261 | |
2262 | if (index) |
2263 | *index = i; |
2264 | } |
2265 | |
2266 | return entry; |
2267 | } |
2268 | |
2269 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
2270 | int *index) |
2271 | { |
2272 | struct singleEntry *entry; |
2273 | struct singleLine *line; |
2274 | int i; |
2275 | char *newtitle; |
2276 | |
2277 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { |
2278 | if (index && i < *index) |
2279 | continue; |
2280 | line = getLineByType(LT_TITLE, entry->lines); |
2281 | if (!line) |
2282 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2283 | if (!line) |
2284 | continue; |
2285 | newtitle = grub2ExtractTitle(line); |
2286 | if (!newtitle) |
2287 | continue; |
2288 | if (!strcmp(title, newtitle)) |
2289 | break; |
2290 | } |
2291 | |
2292 | if (!entry) |
2293 | return NULL; |
2294 | |
2295 | if (index) |
2296 | *index = i; |
2297 | return entry; |
2298 | } |
2299 | |
2300 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index) |
2301 | { |
2302 | struct singleEntry *entry; |
2303 | |
2304 | entry = cfg->entries; |
2305 | while (index && entry) { |
2306 | entry = entry->next; |
2307 | index--; |
2308 | } |
2309 | |
2310 | return entry; |
2311 | } |
2312 | |
2313 | /* Find a good template to use for the new kernel. An entry is |
2314 | * good if the kernel and mkinitrd exist (even if the entry |
2315 | * is going to be removed). Try and use the default entry, but |
2316 | * if that doesn't work just take the first. If we can't find one, |
2317 | * bail. */ |
2318 | struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix, |
2319 | int *indexPtr, int skipRemoved, int flags) |
2320 | { |
2321 | struct singleEntry *entry, *entry2; |
2322 | int index; |
2323 | |
2324 | if (cfg->cfi->defaultIsSaved) { |
2325 | if (cfg->cfi->getEnv) { |
2326 | char *defTitle = |
2327 | cfg->cfi->getEnv(cfg->cfi, "saved_entry"); |
2328 | if (defTitle) { |
2329 | int index = 0; |
2330 | if (isnumber(defTitle)) { |
2331 | index = atoi(defTitle); |
2332 | entry = findEntryByIndex(cfg, index); |
2333 | } else { |
2334 | entry = |
2335 | findEntryByTitle(cfg, defTitle, |
2336 | &index); |
2337 | } |
2338 | if (entry |
2339 | && suitableImage(entry, prefix, skipRemoved, |
2340 | flags)) { |
2341 | cfg->defaultImage = index; |
2342 | if (indexPtr) |
2343 | *indexPtr = index; |
2344 | return entry; |
2345 | } |
2346 | } |
2347 | } |
2348 | } else if (cfg->defaultImage > -1) { |
2349 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2350 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { |
2351 | if (indexPtr) |
2352 | *indexPtr = cfg->defaultImage; |
2353 | return entry; |
2354 | } |
2355 | } |
2356 | |
2357 | index = 0; |
2358 | while ((entry = findEntryByIndex(cfg, index))) { |
2359 | if (suitableImage(entry, prefix, skipRemoved, flags)) { |
2360 | int j; |
2361 | for (j = 0; j < index; j++) { |
2362 | entry2 = findEntryByIndex(cfg, j); |
2363 | if (entry2->skip) |
2364 | index--; |
2365 | } |
2366 | if (indexPtr) |
2367 | *indexPtr = index; |
2368 | |
2369 | return entry; |
2370 | } |
2371 | |
2372 | index++; |
2373 | } |
2374 | |
2375 | fprintf(stderr, |
2376 | _("grubby fatal error: unable to find a suitable template\n")); |
2377 | |
2378 | return NULL; |
2379 | } |
2380 | |
2381 | char *findBootPrefix(void) |
2382 | { |
2383 | struct stat sb, sb2; |
2384 | |
2385 | stat("/", &sb); |
2386 | #ifdef __ia64__ |
2387 | stat("/boot/efi/EFI/redhat/", &sb2); |
2388 | #else |
2389 | stat("/boot", &sb2); |
2390 | #endif |
2391 | |
2392 | if (sb.st_dev == sb2.st_dev) |
2393 | return strdup(""); |
2394 | |
2395 | #ifdef __ia64__ |
2396 | return strdup("/boot/efi/EFI/redhat/"); |
2397 | #else |
2398 | return strdup("/boot"); |
2399 | #endif |
2400 | } |
2401 | |
2402 | void markRemovedImage(struct grubConfig *cfg, const char *image, |
2403 | const char *prefix) |
2404 | { |
2405 | struct singleEntry *entry; |
2406 | |
2407 | if (!image) |
2408 | return; |
2409 | |
2410 | /* check and see if we're removing the default image */ |
2411 | if (isdigit(*image)) { |
2412 | entry = findEntryByPath(cfg, image, prefix, NULL); |
2413 | if (entry) |
2414 | entry->skip = 1; |
2415 | return; |
2416 | } |
2417 | |
2418 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2419 | entry->skip = 1; |
2420 | } |
2421 | |
2422 | void setDefaultImage(struct grubConfig *config, int hasNew, |
2423 | const char *defaultKernelPath, int newIsDefault, |
2424 | const char *prefix, int flags, int index) |
2425 | { |
2426 | struct singleEntry *entry, *entry2, *newDefault; |
2427 | int i, j; |
2428 | |
2429 | if (newIsDefault) { |
2430 | config->defaultImage = 0; |
2431 | return; |
2432 | } else if ((index >= 0) && config->cfi->defaultIsIndex) { |
2433 | if (findEntryByIndex(config, index)) |
2434 | config->defaultImage = index; |
2435 | else |
2436 | config->defaultImage = -1; |
2437 | return; |
2438 | } else if (defaultKernelPath) { |
2439 | i = 0; |
2440 | if (findEntryByPath(config, defaultKernelPath, prefix, &i)) { |
2441 | config->defaultImage = i; |
2442 | } else { |
2443 | config->defaultImage = -1; |
2444 | return; |
2445 | } |
2446 | } |
2447 | |
2448 | /* defaultImage now points to what we'd like to use, but before any |
2449 | * order changes */ |
2450 | if ((config->defaultImage == DEFAULT_SAVED) || |
2451 | (config->defaultImage == DEFAULT_SAVED_GRUB2)) |
2452 | /* default is set to saved, we don't want to change it */ |
2453 | return; |
2454 | |
2455 | if (config->defaultImage > -1) |
2456 | entry = findEntryByIndex(config, config->defaultImage); |
2457 | else |
2458 | entry = NULL; |
2459 | |
2460 | if (entry && !entry->skip) { |
2461 | /* we can preserve the default */ |
2462 | if (hasNew) |
2463 | config->defaultImage++; |
2464 | |
2465 | /* count the number of entries erased before this one */ |
2466 | for (j = 0; j < config->defaultImage; j++) { |
2467 | entry2 = findEntryByIndex(config, j); |
2468 | if (entry2->skip) |
2469 | config->defaultImage--; |
2470 | } |
2471 | } else if (hasNew) { |
2472 | config->defaultImage = 0; |
2473 | } else { |
2474 | /* Either we just erased the default (or the default line was |
2475 | * bad to begin with) and didn't put a new one in. We'll use |
2476 | * the first valid image. */ |
2477 | newDefault = |
2478 | findTemplate(config, prefix, &config->defaultImage, 1, |
2479 | flags); |
2480 | if (!newDefault) |
2481 | config->defaultImage = -1; |
2482 | } |
2483 | } |
2484 | |
2485 | void setFallbackImage(struct grubConfig *config, int hasNew) |
2486 | { |
2487 | struct singleEntry *entry, *entry2; |
2488 | int j; |
2489 | |
2490 | if (config->fallbackImage == -1) |
2491 | return; |
2492 | |
2493 | entry = findEntryByIndex(config, config->fallbackImage); |
2494 | if (!entry || entry->skip) { |
2495 | config->fallbackImage = -1; |
2496 | return; |
2497 | } |
2498 | |
2499 | if (hasNew) |
2500 | config->fallbackImage++; |
2501 | |
2502 | /* count the number of entries erased before this one */ |
2503 | for (j = 0; j < config->fallbackImage; j++) { |
2504 | entry2 = findEntryByIndex(config, j); |
2505 | if (entry2->skip) |
2506 | config->fallbackImage--; |
2507 | } |
2508 | } |
2509 | |
2510 | void displayEntry(struct singleEntry *entry, const char *prefix, int index) |
2511 | { |
2512 | struct singleLine *line; |
2513 | char *root = NULL; |
2514 | int i; |
2515 | int j; |
2516 | |
2517 | printf("index=%d\n", index); |
2518 | |
2519 | line = |
2520 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2521 | entry->lines); |
2522 | if (!line) { |
2523 | printf("non linux entry\n"); |
2524 | return; |
2525 | } |
2526 | |
2527 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2528 | printf("kernel=%s\n", line->elements[1].item); |
2529 | else |
2530 | printf("kernel=%s%s\n", prefix, line->elements[1].item); |
2531 | |
2532 | if (line->numElements >= 3) { |
2533 | printf("args=\""); |
2534 | i = 2; |
2535 | while (i < line->numElements) { |
2536 | if (!strncmp(line->elements[i].item, "root=", 5)) { |
2537 | root = line->elements[i].item + 5; |
2538 | } else { |
2539 | printf("%s%s", line->elements[i].item, |
2540 | line->elements[i].indent); |
2541 | } |
2542 | |
2543 | i++; |
2544 | } |
2545 | printf("\"\n"); |
2546 | } else { |
2547 | line = getLineByType(LT_KERNELARGS, entry->lines); |
2548 | if (line) { |
2549 | char *s; |
2550 | |
2551 | printf("args=\""); |
2552 | i = 1; |
2553 | while (i < line->numElements) { |
2554 | if (!strncmp |
2555 | (line->elements[i].item, "root=", 5)) { |
2556 | root = line->elements[i].item + 5; |
2557 | } else { |
2558 | s = line->elements[i].item; |
2559 | |
2560 | printf("%s%s", s, |
2561 | line->elements[i].indent); |
2562 | } |
2563 | |
2564 | i++; |
2565 | } |
2566 | |
2567 | s = line->elements[i - 1].indent; |
2568 | printf("\"\n"); |
2569 | } |
2570 | } |
2571 | |
2572 | if (!root) { |
2573 | line = getLineByType(LT_ROOT, entry->lines); |
2574 | if (line && line->numElements >= 2) |
2575 | root = line->elements[1].item; |
2576 | } |
2577 | |
2578 | if (root) { |
2579 | char *s = alloca(strlen(root) + 1); |
2580 | |
2581 | strcpy(s, root); |
2582 | if (s[strlen(s) - 1] == '"') |
2583 | s[strlen(s) - 1] = '\0'; |
2584 | /* make sure the root doesn't have a trailing " */ |
2585 | printf("root=%s\n", s); |
2586 | } |
2587 | |
2588 | line = |
2589 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
2590 | entry->lines); |
2591 | |
2592 | if (line && line->numElements >= 2) { |
2593 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2594 | printf("initrd="); |
2595 | else |
2596 | printf("initrd=%s", prefix); |
2597 | |
2598 | for (i = 1; i < line->numElements; i++) |
2599 | printf("%s%s", line->elements[i].item, |
2600 | line->elements[i].indent); |
2601 | printf("\n"); |
2602 | } |
2603 | |
2604 | line = getLineByType(LT_TITLE, entry->lines); |
2605 | if (line) { |
2606 | printf("title=%s\n", line->elements[1].item); |
2607 | } else { |
2608 | char *title; |
2609 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2610 | if (line) { |
2611 | title = grub2ExtractTitle(line); |
2612 | if (title) |
2613 | printf("title=%s\n", title); |
2614 | } |
2615 | } |
2616 | |
2617 | for (j = 0, line = entry->lines; line; line = line->next) { |
2618 | if ((line->type & LT_MBMODULE) && line->numElements >= 2) { |
2619 | if (!strncmp |
2620 | (prefix, line->elements[1].item, strlen(prefix))) |
2621 | printf("mbmodule%d=", j); |
2622 | else |
2623 | printf("mbmodule%d=%s", j, prefix); |
2624 | |
2625 | for (i = 1; i < line->numElements; i++) |
2626 | printf("%s%s", line->elements[i].item, |
2627 | line->elements[i].indent); |
2628 | printf("\n"); |
2629 | j++; |
2630 | } |
2631 | } |
2632 | } |
2633 | |
2634 | int isSuseSystem(void) |
2635 | { |
2636 | const char *path; |
2637 | const static char default_path[] = "/etc/SuSE-release"; |
2638 | |
2639 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) |
2640 | path = default_path; |
2641 | |
2642 | if (!access(path, R_OK)) |
2643 | return 1; |
2644 | return 0; |
2645 | } |
2646 | |
2647 | int isSuseGrubConf(const char *path) |
2648 | { |
2649 | FILE *grubConf; |
2650 | char *line = NULL; |
2651 | size_t len = 0, res = 0; |
2652 | |
2653 | grubConf = fopen(path, "r"); |
2654 | if (!grubConf) { |
2655 | dbgPrintf("Could not open SuSE configuration file '%s'\n", |
2656 | path); |
2657 | return 0; |
2658 | } |
2659 | |
2660 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2661 | if (!strncmp(line, "setup", 5)) { |
2662 | fclose(grubConf); |
2663 | free(line); |
2664 | return 1; |
2665 | } |
2666 | } |
2667 | |
2668 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", |
2669 | path); |
2670 | |
2671 | fclose(grubConf); |
2672 | free(line); |
2673 | return 0; |
2674 | } |
2675 | |
2676 | int suseGrubConfGetLba(const char *path, int *lbaPtr) |
2677 | { |
2678 | FILE *grubConf; |
2679 | char *line = NULL; |
2680 | size_t res = 0, len = 0; |
2681 | |
2682 | if (!path) |
2683 | return 1; |
2684 | if (!lbaPtr) |
2685 | return 1; |
2686 | |
2687 | grubConf = fopen(path, "r"); |
2688 | if (!grubConf) |
2689 | return 1; |
2690 | |
2691 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2692 | if (line[res - 1] == '\n') |
2693 | line[res - 1] = '\0'; |
2694 | else if (len > res) |
2695 | line[res] = '\0'; |
2696 | else { |
2697 | line = realloc(line, res + 1); |
2698 | line[res] = '\0'; |
2699 | } |
2700 | |
2701 | if (!strncmp(line, "setup", 5)) { |
2702 | if (strstr(line, "--force-lba")) { |
2703 | *lbaPtr = 1; |
2704 | } else { |
2705 | *lbaPtr = 0; |
2706 | } |
2707 | dbgPrintf("lba: %i\n", *lbaPtr); |
2708 | break; |
2709 | } |
2710 | } |
2711 | |
2712 | free(line); |
2713 | fclose(grubConf); |
2714 | return 0; |
2715 | } |
2716 | |
2717 | int suseGrubConfGetInstallDevice(const char *path, char **devicePtr) |
2718 | { |
2719 | FILE *grubConf; |
2720 | char *line = NULL; |
2721 | size_t res = 0, len = 0; |
2722 | char *lastParamPtr = NULL; |
2723 | char *secLastParamPtr = NULL; |
2724 | char installDeviceNumber = '\0'; |
2725 | char *bounds = NULL; |
2726 | |
2727 | if (!path) |
2728 | return 1; |
2729 | if (!devicePtr) |
2730 | return 1; |
2731 | |
2732 | grubConf = fopen(path, "r"); |
2733 | if (!grubConf) |
2734 | return 1; |
2735 | |
2736 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2737 | if (strncmp(line, "setup", 5)) |
2738 | continue; |
2739 | |
2740 | if (line[res - 1] == '\n') |
2741 | line[res - 1] = '\0'; |
2742 | else if (len > res) |
2743 | line[res] = '\0'; |
2744 | else { |
2745 | line = realloc(line, res + 1); |
2746 | line[res] = '\0'; |
2747 | } |
2748 | |
2749 | lastParamPtr = bounds = line + res; |
2750 | |
2751 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ |
2752 | while (!isspace(*lastParamPtr)) |
2753 | lastParamPtr--; |
2754 | lastParamPtr++; |
2755 | |
2756 | secLastParamPtr = lastParamPtr - 2; |
2757 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); |
2758 | |
2759 | if (lastParamPtr + 3 > bounds) { |
2760 | dbgPrintf("lastParamPtr going over boundary"); |
2761 | fclose(grubConf); |
2762 | free(line); |
2763 | return 1; |
2764 | } |
2765 | if (!strncmp(lastParamPtr, "(hd", 3)) |
2766 | lastParamPtr += 3; |
2767 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); |
2768 | |
2769 | /* |
2770 | * Second last parameter will decide wether last parameter is |
2771 | * an IMAGE_DEVICE or INSTALL_DEVICE |
2772 | */ |
2773 | while (!isspace(*secLastParamPtr)) |
2774 | secLastParamPtr--; |
2775 | secLastParamPtr++; |
2776 | |
2777 | if (secLastParamPtr + 3 > bounds) { |
2778 | dbgPrintf("secLastParamPtr going over boundary"); |
2779 | fclose(grubConf); |
2780 | free(line); |
2781 | return 1; |
2782 | } |
2783 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); |
2784 | if (!strncmp(secLastParamPtr, "(hd", 3)) { |
2785 | secLastParamPtr += 3; |
2786 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); |
2787 | installDeviceNumber = *secLastParamPtr; |
2788 | } else { |
2789 | installDeviceNumber = *lastParamPtr; |
2790 | } |
2791 | |
2792 | *devicePtr = malloc(6); |
2793 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); |
2794 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); |
2795 | fclose(grubConf); |
2796 | free(line); |
2797 | return 0; |
2798 | } |
2799 | |
2800 | free(line); |
2801 | fclose(grubConf); |
2802 | return 1; |
2803 | } |
2804 | |
2805 | int grubGetBootFromDeviceMap(const char *device, char **bootPtr) |
2806 | { |
2807 | FILE *deviceMap; |
2808 | char *line = NULL; |
2809 | size_t res = 0, len = 0; |
2810 | char *devicePtr; |
2811 | char *bounds = NULL; |
2812 | const char *path; |
2813 | const static char default_path[] = "/boot/grub/device.map"; |
2814 | |
2815 | if (!device) |
2816 | return 1; |
2817 | if (!bootPtr) |
2818 | return 1; |
2819 | |
2820 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) |
2821 | path = default_path; |
2822 | |
2823 | dbgPrintf("opening grub device.map file from: %s\n", path); |
2824 | deviceMap = fopen(path, "r"); |
2825 | if (!deviceMap) |
2826 | return 1; |
2827 | |
2828 | while ((res = getline(&line, &len, deviceMap)) != -1) { |
2829 | if (!strncmp(line, "#", 1)) |
2830 | continue; |
2831 | |
2832 | if (line[res - 1] == '\n') |
2833 | line[res - 1] = '\0'; |
2834 | else if (len > res) |
2835 | line[res] = '\0'; |
2836 | else { |
2837 | line = realloc(line, res + 1); |
2838 | line[res] = '\0'; |
2839 | } |
2840 | |
2841 | devicePtr = line; |
2842 | bounds = line + res; |
2843 | |
2844 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) |
2845 | devicePtr++; |
2846 | dbgPrintf("device: %s\n", devicePtr); |
2847 | |
2848 | if (!strncmp(devicePtr, device, strlen(device))) { |
2849 | devicePtr += strlen(device); |
2850 | while (isspace(*devicePtr) |
2851 | && ((devicePtr + 1) <= bounds)) |
2852 | devicePtr++; |
2853 | |
2854 | *bootPtr = strdup(devicePtr); |
2855 | break; |
2856 | } |
2857 | } |
2858 | |
2859 | free(line); |
2860 | fclose(deviceMap); |
2861 | return 0; |
2862 | } |
2863 | |
2864 | int suseGrubConfGetBoot(const char *path, char **bootPtr) |
2865 | { |
2866 | char *grubDevice; |
2867 | |
2868 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) |
2869 | dbgPrintf("error looking for grub installation device\n"); |
2870 | else |
2871 | dbgPrintf("grubby installation device: %s\n", grubDevice); |
2872 | |
2873 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) |
2874 | dbgPrintf("error looking for grub boot device\n"); |
2875 | else |
2876 | dbgPrintf("grubby boot device: %s\n", *bootPtr); |
2877 | |
2878 | free(grubDevice); |
2879 | return 0; |
2880 | } |
2881 | |
2882 | int parseSuseGrubConf(int *lbaPtr, char **bootPtr) |
2883 | { |
2884 | /* |
2885 | * This SuSE grub configuration file at this location is not your |
2886 | * average grub configuration file, but instead the grub commands |
2887 | * used to setup grub on that system. |
2888 | */ |
2889 | const char *path; |
2890 | const static char default_path[] = "/etc/grub.conf"; |
2891 | |
2892 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) |
2893 | path = default_path; |
2894 | |
2895 | if (!isSuseGrubConf(path)) |
2896 | return 1; |
2897 | |
2898 | if (lbaPtr) { |
2899 | *lbaPtr = 0; |
2900 | if (suseGrubConfGetLba(path, lbaPtr)) |
2901 | return 1; |
2902 | } |
2903 | |
2904 | if (bootPtr) { |
2905 | *bootPtr = NULL; |
2906 | suseGrubConfGetBoot(path, bootPtr); |
2907 | } |
2908 | |
2909 | return 0; |
2910 | } |
2911 | |
2912 | int parseSysconfigGrub(int *lbaPtr, char **bootPtr) |
2913 | { |
2914 | FILE *in; |
2915 | char buf[1024]; |
2916 | char *chptr; |
2917 | char *start; |
2918 | char *param; |
2919 | |
2920 | in = fopen("/etc/sysconfig/grub", "r"); |
2921 | if (!in) |
2922 | return 1; |
2923 | |
2924 | if (lbaPtr) |
2925 | *lbaPtr = 0; |
2926 | if (bootPtr) |
2927 | *bootPtr = NULL; |
2928 | |
2929 | while (fgets(buf, sizeof(buf), in)) { |
2930 | start = buf; |
2931 | while (isspace(*start)) |
2932 | start++; |
2933 | if (*start == '#') |
2934 | continue; |
2935 | |
2936 | chptr = strchr(start, '='); |
2937 | if (!chptr) |
2938 | continue; |
2939 | chptr--; |
2940 | while (*chptr && isspace(*chptr)) |
2941 | chptr--; |
2942 | chptr++; |
2943 | *chptr = '\0'; |
2944 | |
2945 | param = chptr + 1; |
2946 | while (*param && isspace(*param)) |
2947 | param++; |
2948 | if (*param == '=') { |
2949 | param++; |
2950 | while (*param && isspace(*param)) |
2951 | param++; |
2952 | } |
2953 | |
2954 | chptr = param; |
2955 | while (*chptr && !isspace(*chptr)) |
2956 | chptr++; |
2957 | *chptr = '\0'; |
2958 | |
2959 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) |
2960 | *lbaPtr = 1; |
2961 | else if (!strcmp(start, "boot") && bootPtr) |
2962 | *bootPtr = strdup(param); |
2963 | } |
2964 | |
2965 | fclose(in); |
2966 | |
2967 | return 0; |
2968 | } |
2969 | |
2970 | void dumpSysconfigGrub(void) |
2971 | { |
2972 | char *boot = NULL; |
2973 | int lba; |
2974 | |
2975 | if (isSuseSystem()) { |
2976 | if (parseSuseGrubConf(&lba, &boot)) { |
2977 | free(boot); |
2978 | return; |
2979 | } |
2980 | } else { |
2981 | if (parseSysconfigGrub(&lba, &boot)) { |
2982 | free(boot); |
2983 | return; |
2984 | } |
2985 | } |
2986 | |
2987 | if (lba) |
2988 | printf("lba\n"); |
2989 | if (boot) { |
2990 | printf("boot=%s\n", boot); |
2991 | free(boot); |
2992 | } |
2993 | } |
2994 | |
2995 | int displayInfo(struct grubConfig *config, char *kernel, const char *prefix) |
2996 | { |
2997 | int i = 0; |
2998 | struct singleEntry *entry; |
2999 | struct singleLine *line; |
3000 | |
3001 | entry = findEntryByPath(config, kernel, prefix, &i); |
3002 | if (!entry) { |
3003 | fprintf(stderr, _("grubby: kernel not found\n")); |
3004 | return 1; |
3005 | } |
3006 | |
3007 | /* this is a horrible hack to support /etc/sysconfig/grub; there must |
3008 | be a better way */ |
3009 | if (config->cfi == &grubConfigType) { |
3010 | dumpSysconfigGrub(); |
3011 | } else { |
3012 | line = getLineByType(LT_BOOT, config->theLines); |
3013 | if (line && line->numElements >= 1) { |
3014 | printf("boot=%s\n", line->elements[1].item); |
3015 | } |
3016 | |
3017 | line = getLineByType(LT_LBA, config->theLines); |
3018 | if (line) |
3019 | printf("lba\n"); |
3020 | } |
3021 | |
3022 | displayEntry(entry, prefix, i); |
3023 | |
3024 | i++; |
3025 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { |
3026 | displayEntry(entry, prefix, i); |
3027 | i++; |
3028 | } |
3029 | |
3030 | return 0; |
3031 | } |
3032 | |
3033 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
3034 | struct singleLine *tmplLine, |
3035 | struct singleLine *prevLine, |
3036 | const char *val, struct configFileInfo *cfi) |
3037 | { |
3038 | struct singleLine *newLine = lineDup(tmplLine); |
3039 | |
3040 | if (isEfi && cfi == &grub2ConfigType) { |
3041 | enum lineType_e old = newLine->type; |
3042 | newLine->type = preferredLineType(newLine->type, cfi); |
3043 | if (old != newLine->type) |
3044 | newLine->elements[0].item = |
3045 | getKeyByType(newLine->type, cfi); |
3046 | } |
3047 | |
3048 | if (val) { |
3049 | /* override the inherited value with our own. |
3050 | * This is a little weak because it only applies to elements[1] |
3051 | */ |
3052 | if (newLine->numElements > 1) |
3053 | removeElement(newLine, 1); |
3054 | insertElement(newLine, val, 1, cfi); |
3055 | |
3056 | /* but try to keep the rootspec from the template... sigh */ |
3057 | if (tmplLine-> |
3058 | type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD | |
3059 | LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 | |
3060 | LT_INITRD_16)) { |
3061 | char *rootspec = |
3062 | getRootSpecifier(tmplLine->elements[1].item); |
3063 | if (rootspec != NULL) { |
3064 | free(newLine->elements[1].item); |
3065 | newLine->elements[1].item = |
3066 | sdupprintf("%s%s", rootspec, val); |
3067 | } |
3068 | } |
3069 | } |
3070 | |
3071 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? |
3072 | newLine->elements[0].item : ""); |
3073 | |
3074 | if (!entry->lines) { |
3075 | /* first one on the list */ |
3076 | entry->lines = newLine; |
3077 | } else if (prevLine) { |
3078 | /* add after prevLine */ |
3079 | newLine->next = prevLine->next; |
3080 | prevLine->next = newLine; |
3081 | } |
3082 | |
3083 | return newLine; |
3084 | } |
3085 | |
3086 | /* val may be NULL */ |
3087 | struct singleLine *addLine(struct singleEntry *entry, |
3088 | struct configFileInfo *cfi, |
3089 | enum lineType_e type, char *defaultIndent, |
3090 | const char *val) |
3091 | { |
3092 | struct singleLine *line, *prev; |
3093 | struct keywordTypes *kw; |
3094 | struct singleLine tmpl; |
3095 | |
3096 | /* NB: This function shouldn't allocate items on the heap, rather on |
3097 | * the stack since it calls addLineTmpl which will make copies. |
3098 | */ |
3099 | if (type == LT_TITLE && cfi->titleBracketed) { |
3100 | /* we're doing a bracketed title (zipl) */ |
3101 | tmpl.type = type; |
3102 | tmpl.numElements = 1; |
3103 | tmpl.elements = alloca(sizeof(*tmpl.elements)); |
3104 | tmpl.elements[0].item = alloca(strlen(val) + 3); |
3105 | sprintf(tmpl.elements[0].item, "[%s]", val); |
3106 | tmpl.elements[0].indent = ""; |
3107 | val = NULL; |
3108 | } else if (type == LT_MENUENTRY) { |
3109 | char *lineend = "--class gnu-linux --class gnu --class os {"; |
3110 | if (!val) { |
3111 | fprintf(stderr, |
3112 | "Line type LT_MENUENTRY requires a value\n"); |
3113 | abort(); |
3114 | } |
3115 | kw = getKeywordByType(type, cfi); |
3116 | if (!kw) { |
3117 | fprintf(stderr, |
3118 | "Looking up keyword for unknown type %d\n", |
3119 | type); |
3120 | abort(); |
3121 | } |
3122 | tmpl.indent = ""; |
3123 | tmpl.type = type; |
3124 | tmpl.numElements = 3; |
3125 | tmpl.elements = |
3126 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3127 | tmpl.elements[0].item = kw->key; |
3128 | tmpl.elements[0].indent = alloca(2); |
3129 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3130 | tmpl.elements[1].item = (char *)val; |
3131 | tmpl.elements[1].indent = alloca(2); |
3132 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); |
3133 | tmpl.elements[2].item = alloca(strlen(lineend) + 1); |
3134 | strcpy(tmpl.elements[2].item, lineend); |
3135 | tmpl.elements[2].indent = ""; |
3136 | } else { |
3137 | kw = getKeywordByType(type, cfi); |
3138 | if (!kw) { |
3139 | fprintf(stderr, |
3140 | "Looking up keyword for unknown type %d\n", |
3141 | type); |
3142 | abort(); |
3143 | } |
3144 | tmpl.type = type; |
3145 | tmpl.numElements = val ? 2 : 1; |
3146 | tmpl.elements = |
3147 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3148 | tmpl.elements[0].item = kw->key; |
3149 | tmpl.elements[0].indent = alloca(2); |
3150 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3151 | if (val) { |
3152 | tmpl.elements[1].item = (char *)val; |
3153 | tmpl.elements[1].indent = ""; |
3154 | } |
3155 | } |
3156 | |
3157 | /* The last non-empty line gives us the indention to us and the line |
3158 | * to insert after. Note that comments are considered empty lines, |
3159 | * which may not be ideal? If there are no lines or we are looking at |
3160 | * the first line, we use defaultIndent (the first line is normally |
3161 | * indented differently from the rest) */ |
3162 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
3163 | if (line->numElements) |
3164 | prev = line; |
3165 | /* fall back on the last line if prev isn't otherwise set */ |
3166 | if (!line->next && !prev) |
3167 | prev = line; |
3168 | } |
3169 | |
3170 | struct singleLine *menuEntry; |
3171 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); |
3172 | if (tmpl.type == LT_ENTRY_END) { |
3173 | if (menuEntry) |
3174 | tmpl.indent = menuEntry->indent; |
3175 | else |
3176 | tmpl.indent = defaultIndent ? : ""; |
3177 | } else if (tmpl.type != LT_MENUENTRY) { |
3178 | if (menuEntry) |
3179 | tmpl.indent = "\t"; |
3180 | else if (prev == entry->lines) |
3181 | tmpl.indent = defaultIndent ? : ""; |
3182 | else |
3183 | tmpl.indent = prev->indent; |
3184 | } |
3185 | |
3186 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
3187 | } |
3188 | |
3189 | void removeLine(struct singleEntry *entry, struct singleLine *line) |
3190 | { |
3191 | struct singleLine *prev; |
3192 | int i; |
3193 | |
3194 | for (i = 0; i < line->numElements; i++) { |
3195 | free(line->elements[i].item); |
3196 | free(line->elements[i].indent); |
3197 | } |
3198 | free(line->elements); |
3199 | free(line->indent); |
3200 | |
3201 | if (line == entry->lines) { |
3202 | entry->lines = line->next; |
3203 | } else { |
3204 | prev = entry->lines; |
3205 | while (prev->next != line) |
3206 | prev = prev->next; |
3207 | prev->next = line->next; |
3208 | } |
3209 | |
3210 | free(line); |
3211 | } |
3212 | |
3213 | static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi) |
3214 | { |
3215 | struct singleLine newLine = { |
3216 | .indent = tmplLine->indent, |
3217 | .type = tmplLine->type, |
3218 | .next = tmplLine->next, |
3219 | }; |
3220 | int firstQuotedItem = -1; |
3221 | int quoteLen = 0; |
3222 | int j; |
3223 | int element = 0; |
3224 | char *c; |
3225 | |
3226 | c = malloc(strlen(tmplLine->elements[0].item) + 1); |
3227 | strcpy(c, tmplLine->elements[0].item); |
3228 | insertElement(&newLine, c, element++, cfi); |
3229 | free(c); |
3230 | c = NULL; |
3231 | |
3232 | for (j = 1; j < tmplLine->numElements; j++) { |
3233 | if (firstQuotedItem == -1) { |
3234 | quoteLen += strlen(tmplLine->elements[j].item); |
3235 | |
3236 | if (isquote(tmplLine->elements[j].item[0])) { |
3237 | firstQuotedItem = j; |
3238 | quoteLen += |
3239 | strlen(tmplLine->elements[j].indent); |
3240 | } else { |
3241 | c = malloc(quoteLen + 1); |
3242 | strcpy(c, tmplLine->elements[j].item); |
3243 | insertElement(&newLine, c, element++, cfi); |
3244 | free(c); |
3245 | quoteLen = 0; |
3246 | } |
3247 | } else { |
3248 | int itemlen = strlen(tmplLine->elements[j].item); |
3249 | quoteLen += itemlen; |
3250 | quoteLen += strlen(tmplLine->elements[j].indent); |
3251 | |
3252 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { |
3253 | c = malloc(quoteLen + 1); |
3254 | c[0] = '\0'; |
3255 | for (int i = firstQuotedItem; i < j + 1; i++) { |
3256 | strcat(c, tmplLine->elements[i].item); |
3257 | strcat(c, tmplLine->elements[i].indent); |
3258 | } |
3259 | insertElement(&newLine, c, element++, cfi); |
3260 | free(c); |
3261 | |
3262 | firstQuotedItem = -1; |
3263 | quoteLen = 0; |
3264 | } |
3265 | } |
3266 | } |
3267 | while (tmplLine->numElements) |
3268 | removeElement(tmplLine, 0); |
3269 | if (tmplLine->elements) |
3270 | free(tmplLine->elements); |
3271 | |
3272 | tmplLine->numElements = newLine.numElements; |
3273 | tmplLine->elements = newLine.elements; |
3274 | } |
3275 | |
3276 | static void insertElement(struct singleLine *line, |
3277 | const char *item, int insertHere, |
3278 | struct configFileInfo *cfi) |
3279 | { |
3280 | struct keywordTypes *kw; |
3281 | char indent[2] = ""; |
3282 | |
3283 | /* sanity check */ |
3284 | if (insertHere > line->numElements) { |
3285 | dbgPrintf |
3286 | ("insertElement() adjusting insertHere from %d to %d\n", |
3287 | insertHere, line->numElements); |
3288 | insertHere = line->numElements; |
3289 | } |
3290 | |
3291 | line->elements = realloc(line->elements, (line->numElements + 1) * |
3292 | sizeof(*line->elements)); |
3293 | memmove(&line->elements[insertHere + 1], |
3294 | &line->elements[insertHere], |
3295 | (line->numElements - insertHere) * sizeof(*line->elements)); |
3296 | line->elements[insertHere].item = strdup(item); |
3297 | |
3298 | kw = getKeywordByType(line->type, cfi); |
3299 | |
3300 | if (line->numElements == 0) { |
3301 | indent[0] = '\0'; |
3302 | } else if (insertHere == 0) { |
3303 | indent[0] = kw->nextChar; |
3304 | } else if (kw->separatorChar != '\0') { |
3305 | indent[0] = kw->separatorChar; |
3306 | } else { |
3307 | indent[0] = ' '; |
3308 | } |
3309 | |
3310 | if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') { |
3311 | /* move the end-of-line forward */ |
3312 | line->elements[insertHere].indent = |
3313 | line->elements[insertHere - 1].indent; |
3314 | line->elements[insertHere - 1].indent = strdup(indent); |
3315 | } else { |
3316 | line->elements[insertHere].indent = strdup(indent); |
3317 | } |
3318 | |
3319 | line->numElements++; |
3320 | |
3321 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", |
3322 | line->elements[0].item, |
3323 | line->elements[insertHere].item, |
3324 | line->elements[insertHere].indent, insertHere); |
3325 | } |
3326 | |
3327 | static void removeElement(struct singleLine *line, int removeHere) |
3328 | { |
3329 | int i; |
3330 | |
3331 | /* sanity check */ |
3332 | if (removeHere >= line->numElements) |
3333 | return; |
3334 | |
3335 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, |
3336 | removeHere, line->elements[removeHere].item); |
3337 | |
3338 | free(line->elements[removeHere].item); |
3339 | |
3340 | if (removeHere > 1) { |
3341 | /* previous argument gets this argument's post-indentation */ |
3342 | free(line->elements[removeHere - 1].indent); |
3343 | line->elements[removeHere - 1].indent = |
3344 | line->elements[removeHere].indent; |
3345 | } else { |
3346 | free(line->elements[removeHere].indent); |
3347 | } |
3348 | |
3349 | /* now collapse the array, but don't bother to realloc smaller */ |
3350 | for (i = removeHere; i < line->numElements - 1; i++) |
3351 | line->elements[i] = line->elements[i + 1]; |
3352 | |
3353 | line->numElements--; |
3354 | } |
3355 | |
3356 | int argMatch(const char *one, const char *two) |
3357 | { |
3358 | char *first, *second; |
3359 | char *chptr; |
3360 | |
3361 | first = strcpy(alloca(strlen(one) + 1), one); |
3362 | second = strcpy(alloca(strlen(two) + 1), two); |
3363 | |
3364 | chptr = strchr(first, '='); |
3365 | if (chptr) |
3366 | *chptr = '\0'; |
3367 | |
3368 | chptr = strchr(second, '='); |
3369 | if (chptr) |
3370 | *chptr = '\0'; |
3371 | |
3372 | return strcmp(first, second); |
3373 | } |
3374 | |
3375 | int updateActualImage(struct grubConfig *cfg, const char *image, |
3376 | const char *prefix, const char *addArgs, |
3377 | const char *removeArgs, int multibootArgs) |
3378 | { |
3379 | struct singleEntry *entry; |
3380 | struct singleLine *line, *rootLine; |
3381 | int index = 0; |
3382 | int i, k; |
3383 | const char **newArgs, **oldArgs; |
3384 | const char **arg; |
3385 | int useKernelArgs, useRoot; |
3386 | int firstElement; |
3387 | int *usedElements; |
3388 | int doreplace; |
3389 | |
3390 | if (!image) |
3391 | return 0; |
3392 | |
3393 | if (!addArgs) { |
3394 | newArgs = malloc(sizeof(*newArgs)); |
3395 | *newArgs = NULL; |
3396 | } else { |
3397 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { |
3398 | fprintf(stderr, |
3399 | _("grubby: error separating arguments '%s'\n"), |
3400 | addArgs); |
3401 | return 1; |
3402 | } |
3403 | } |
3404 | |
3405 | if (!removeArgs) { |
3406 | oldArgs = malloc(sizeof(*oldArgs)); |
3407 | *oldArgs = NULL; |
3408 | } else { |
3409 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { |
3410 | fprintf(stderr, |
3411 | _("grubby: error separating arguments '%s'\n"), |
3412 | removeArgs); |
3413 | free(newArgs); |
3414 | return 1; |
3415 | } |
3416 | } |
3417 | |
3418 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3419 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); |
3420 | |
3421 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3422 | && !multibootArgs); |
3423 | |
3424 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3425 | |
3426 | if (multibootArgs && !entry->multiboot) |
3427 | continue; |
3428 | |
3429 | /* Determine where to put the args. If this config supports |
3430 | * LT_KERNELARGS, use that. Otherwise use |
3431 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. |
3432 | */ |
3433 | if (useKernelArgs) { |
3434 | line = getLineByType(LT_KERNELARGS, entry->lines); |
3435 | if (!line) { |
3436 | /* no LT_KERNELARGS, need to add it */ |
3437 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, |
3438 | cfg->secondaryIndent, NULL); |
3439 | } |
3440 | firstElement = 1; |
3441 | |
3442 | } else if (multibootArgs) { |
3443 | line = getLineByType(LT_HYPER, entry->lines); |
3444 | if (!line) { |
3445 | /* a multiboot entry without LT_HYPER? */ |
3446 | continue; |
3447 | } |
3448 | firstElement = 2; |
3449 | |
3450 | } else { |
3451 | line = |
3452 | getLineByType(LT_KERNEL | LT_MBMODULE | |
3453 | LT_KERNEL_EFI | LT_KERNEL_16, |
3454 | entry->lines); |
3455 | if (!line) { |
3456 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ |
3457 | continue; |
3458 | } |
3459 | firstElement = 2; |
3460 | } |
3461 | |
3462 | /* handle the elilo case which does: |
3463 | * append="hypervisor args -- kernel args" |
3464 | */ |
3465 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { |
3466 | /* this is a multiboot entry, make sure there's |
3467 | * -- on the args line |
3468 | */ |
3469 | for (i = firstElement; i < line->numElements; i++) { |
3470 | if (!strcmp(line->elements[i].item, "--")) |
3471 | break; |
3472 | } |
3473 | if (i == line->numElements) { |
3474 | /* assume all existing args are kernel args, |
3475 | * prepend -- to make it official |
3476 | */ |
3477 | insertElement(line, "--", firstElement, |
3478 | cfg->cfi); |
3479 | i = firstElement; |
3480 | } |
3481 | if (!multibootArgs) { |
3482 | /* kernel args start after the -- */ |
3483 | firstElement = i + 1; |
3484 | } |
3485 | } else if (cfg->cfi->mbConcatArgs) { |
3486 | /* this is a non-multiboot entry, remove hyper args */ |
3487 | for (i = firstElement; i < line->numElements; i++) { |
3488 | if (!strcmp(line->elements[i].item, "--")) |
3489 | break; |
3490 | } |
3491 | if (i < line->numElements) { |
3492 | /* remove args up to -- */ |
3493 | while (strcmp |
3494 | (line->elements[firstElement].item, |
3495 | "--")) |
3496 | removeElement(line, firstElement); |
3497 | /* remove -- */ |
3498 | removeElement(line, firstElement); |
3499 | } |
3500 | } |
3501 | |
3502 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3503 | |
3504 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3505 | |
3506 | doreplace = 1; |
3507 | for (i = firstElement; i < line->numElements; i++) { |
3508 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3509 | !strcmp(line->elements[i].item, "--")) { |
3510 | /* reached the end of hyper args, insert here */ |
3511 | doreplace = 0; |
3512 | break; |
3513 | } |
3514 | if (usedElements[i]) |
3515 | continue; |
3516 | if (!argMatch(line->elements[i].item, *arg)) { |
3517 | usedElements[i] = 1; |
3518 | break; |
3519 | } |
3520 | } |
3521 | |
3522 | if (i < line->numElements && doreplace) { |
3523 | /* direct replacement */ |
3524 | free(line->elements[i].item); |
3525 | line->elements[i].item = strdup(*arg); |
3526 | |
3527 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3528 | /* root= replacement */ |
3529 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3530 | if (rootLine) { |
3531 | free(rootLine->elements[1].item); |
3532 | rootLine->elements[1].item = |
3533 | strdup(*arg + 5); |
3534 | } else { |
3535 | rootLine = |
3536 | addLine(entry, cfg->cfi, LT_ROOT, |
3537 | cfg->secondaryIndent, |
3538 | *arg + 5); |
3539 | } |
3540 | } |
3541 | |
3542 | else { |
3543 | /* insert/append */ |
3544 | insertElement(line, *arg, i, cfg->cfi); |
3545 | usedElements = |
3546 | realloc(usedElements, |
3547 | line->numElements * |
3548 | sizeof(*usedElements)); |
3549 | memmove(&usedElements[i + 1], &usedElements[i], |
3550 | line->numElements - i - 1); |
3551 | usedElements[i] = 1; |
3552 | |
3553 | /* if we updated a root= here even though |
3554 | * there is a LT_ROOT available we need to |
3555 | * remove the LT_ROOT entry (this will happen |
3556 | * if we switch from a device to a label) */ |
3557 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3558 | rootLine = |
3559 | getLineByType(LT_ROOT, |
3560 | entry->lines); |
3561 | if (rootLine) |
3562 | removeLine(entry, rootLine); |
3563 | } |
3564 | } |
3565 | } |
3566 | |
3567 | free(usedElements); |
3568 | |
3569 | for (arg = oldArgs; *arg; arg++) { |
3570 | for (i = firstElement; i < line->numElements; i++) { |
3571 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3572 | !strcmp(line->elements[i].item, "--")) |
3573 | /* reached the end of hyper args, stop here */ |
3574 | break; |
3575 | if (!argMatch(line->elements[i].item, *arg)) { |
3576 | removeElement(line, i); |
3577 | break; |
3578 | } |
3579 | } |
3580 | /* handle removing LT_ROOT line too */ |
3581 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3582 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3583 | if (rootLine) |
3584 | removeLine(entry, rootLine); |
3585 | } |
3586 | } |
3587 | |
3588 | if (line->numElements == 1) { |
3589 | /* don't need the line at all (note it has to be a |
3590 | LT_KERNELARGS for this to happen */ |
3591 | removeLine(entry, line); |
3592 | } |
3593 | } |
3594 | |
3595 | free(newArgs); |
3596 | free(oldArgs); |
3597 | |
3598 | return 0; |
3599 | } |
3600 | |
3601 | int updateImage(struct grubConfig *cfg, const char *image, |
3602 | const char *prefix, const char *addArgs, |
3603 | const char *removeArgs, |
3604 | const char *addMBArgs, const char *removeMBArgs) |
3605 | { |
3606 | int rc = 0; |
3607 | |
3608 | if (!image) |
3609 | return rc; |
3610 | |
3611 | /* update the main args first... */ |
3612 | if (addArgs || removeArgs) |
3613 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, |
3614 | 0); |
3615 | if (rc) |
3616 | return rc; |
3617 | |
3618 | /* and now any multiboot args */ |
3619 | if (addMBArgs || removeMBArgs) |
3620 | rc = updateActualImage(cfg, image, prefix, addMBArgs, |
3621 | removeMBArgs, 1); |
3622 | return rc; |
3623 | } |
3624 | |
3625 | int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel, |
3626 | const char *image, const char *prefix, const char *initrd, |
3627 | const char *title) |
3628 | { |
3629 | struct singleEntry *entry; |
3630 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3631 | int index = 0; |
3632 | |
3633 | if (!image) |
3634 | return 0; |
3635 | |
3636 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3637 | kernelLine = getLineByType(LT_MBMODULE, entry->lines); |
3638 | if (!kernelLine) |
3639 | continue; |
3640 | |
3641 | /* if title is supplied, the entry's title must match it. */ |
3642 | if (title) { |
3643 | char *linetitle; |
3644 | |
3645 | line = |
3646 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3647 | entry->lines); |
3648 | if (!line) |
3649 | continue; |
3650 | |
3651 | linetitle = extractTitle(cfg, line); |
3652 | if (!linetitle) |
3653 | continue; |
3654 | if (strcmp(title, linetitle)) { |
3655 | free(linetitle); |
3656 | continue; |
3657 | } |
3658 | free(linetitle); |
3659 | } |
3660 | |
3661 | if (prefix) { |
3662 | int prefixLen = strlen(prefix); |
3663 | if (!strncmp(initrd, prefix, prefixLen)) |
3664 | initrd += prefixLen; |
3665 | } |
3666 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3667 | if (endLine) |
3668 | removeLine(entry, endLine); |
3669 | line = |
3670 | addLine(entry, cfg->cfi, |
3671 | preferredLineType(LT_MBMODULE, cfg->cfi), |
3672 | kernelLine->indent, initrd); |
3673 | if (!line) |
3674 | return 1; |
3675 | if (endLine) { |
3676 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3677 | if (!line) |
3678 | return 1; |
3679 | } |
3680 | |
3681 | break; |
3682 | } |
3683 | |
3684 | return 0; |
3685 | } |
3686 | |
3687 | int updateInitrd(struct grubConfig *cfg, const char *image, |
3688 | const char *prefix, const char *initrd, const char *title) |
3689 | { |
3690 | struct singleEntry *entry; |
3691 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3692 | int index = 0; |
3693 | |
3694 | if (!image) |
3695 | return 0; |
3696 | |
3697 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3698 | kernelLine = |
3699 | getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16, |
3700 | entry->lines); |
3701 | if (!kernelLine) |
3702 | continue; |
3703 | |
3704 | /* if title is supplied, the entry's title must match it. */ |
3705 | if (title) { |
3706 | char *linetitle; |
3707 | |
3708 | line = |
3709 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3710 | entry->lines); |
3711 | if (!line) |
3712 | continue; |
3713 | |
3714 | linetitle = extractTitle(cfg, line); |
3715 | if (!linetitle) |
3716 | continue; |
3717 | if (strcmp(title, linetitle)) { |
3718 | free(linetitle); |
3719 | continue; |
3720 | } |
3721 | free(linetitle); |
3722 | } |
3723 | |
3724 | line = |
3725 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
3726 | entry->lines); |
3727 | if (line) |
3728 | removeLine(entry, line); |
3729 | if (prefix) { |
3730 | int prefixLen = strlen(prefix); |
3731 | if (!strncmp(initrd, prefix, prefixLen)) |
3732 | initrd += prefixLen; |
3733 | } |
3734 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3735 | if (endLine) |
3736 | removeLine(entry, endLine); |
3737 | enum lineType_e lt; |
3738 | switch (kernelLine->type) { |
3739 | case LT_KERNEL: |
3740 | lt = LT_INITRD; |
3741 | break; |
3742 | case LT_KERNEL_EFI: |
3743 | lt = LT_INITRD_EFI; |
3744 | break; |
3745 | case LT_KERNEL_16: |
3746 | lt = LT_INITRD_16; |
3747 | break; |
3748 | default: |
3749 | lt = preferredLineType(LT_INITRD, cfg->cfi); |
3750 | } |
3751 | line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd); |
3752 | if (!line) |
3753 | return 1; |
3754 | if (endLine) { |
3755 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3756 | if (!line) |
3757 | return 1; |
3758 | } |
3759 | |
3760 | break; |
3761 | } |
3762 | |
3763 | return 0; |
3764 | } |
3765 | |
3766 | int checkDeviceBootloader(const char *device, const unsigned char *boot) |
3767 | { |
3768 | int fd; |
3769 | unsigned char bootSect[512]; |
3770 | int offset; |
3771 | |
3772 | fd = open(device, O_RDONLY); |
3773 | if (fd < 0) { |
3774 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
3775 | device, strerror(errno)); |
3776 | return 1; |
3777 | } |
3778 | |
3779 | if (read(fd, bootSect, 512) != 512) { |
3780 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
3781 | device, strerror(errno)); |
3782 | return 1; |
3783 | } |
3784 | close(fd); |
3785 | |
3786 | /* first three bytes should match, a jmp short should be in there */ |
3787 | if (memcmp(boot, bootSect, 3)) |
3788 | return 0; |
3789 | |
3790 | if (boot[1] == JMP_SHORT_OPCODE) { |
3791 | offset = boot[2] + 2; |
3792 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { |
3793 | offset = (boot[3] << 8) + boot[2] + 2; |
3794 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
3795 | offset = boot[1] + 2; |
3796 | /* |
3797 | * it looks like grub, when copying stage1 into the mbr, |
3798 | * patches stage1 right after the JMP location, replacing |
3799 | * other instructions such as JMPs for NOOPs. So, relax the |
3800 | * check a little bit by skipping those different bytes. |
3801 | */ |
3802 | if ((bootSect[offset + 1] == NOOP_OPCODE) |
3803 | && (bootSect[offset + 2] == NOOP_OPCODE)) { |
3804 | offset = offset + 3; |
3805 | } |
3806 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
3807 | offset = (boot[2] << 8) + boot[1] + 2; |
3808 | } else { |
3809 | return 0; |
3810 | } |
3811 | |
3812 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) |
3813 | return 0; |
3814 | |
3815 | return 2; |
3816 | } |
3817 | |
3818 | int checkLiloOnRaid(char *mdDev, const unsigned char *boot) |
3819 | { |
3820 | int fd; |
3821 | char buf[65536]; |
3822 | char *end; |
3823 | char *chptr; |
3824 | char *chptr2; |
3825 | int rc; |
3826 | |
3827 | /* it's on raid; we need to parse /proc/mdstat and check all of the |
3828 | *raw* devices listed in there */ |
3829 | |
3830 | if (!strncmp(mdDev, "/dev/", 5)) |
3831 | mdDev += 5; |
3832 | |
3833 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { |
3834 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), |
3835 | strerror(errno)); |
3836 | return 2; |
3837 | } |
3838 | |
3839 | rc = read(fd, buf, sizeof(buf) - 1); |
3840 | if (rc < 0 || rc == (sizeof(buf) - 1)) { |
3841 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), |
3842 | strerror(errno)); |
3843 | close(fd); |
3844 | return 2; |
3845 | } |
3846 | close(fd); |
3847 | buf[rc] = '\0'; |
3848 | |
3849 | chptr = buf; |
3850 | while (*chptr) { |
3851 | end = strchr(chptr, '\n'); |
3852 | if (!end) |
3853 | break; |
3854 | *end = '\0'; |
3855 | |
3856 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && |
3857 | chptr[strlen(mdDev)] == ' ') { |
3858 | |
3859 | /* found the device */ |
3860 | while (*chptr && *chptr != ':') |
3861 | chptr++; |
3862 | chptr++; |
3863 | while (*chptr && isspace(*chptr)) |
3864 | chptr++; |
3865 | |
3866 | /* skip the "active" bit */ |
3867 | while (*chptr && !isspace(*chptr)) |
3868 | chptr++; |
3869 | while (*chptr && isspace(*chptr)) |
3870 | chptr++; |
3871 | |
3872 | /* skip the raid level */ |
3873 | while (*chptr && !isspace(*chptr)) |
3874 | chptr++; |
3875 | while (*chptr && isspace(*chptr)) |
3876 | chptr++; |
3877 | |
3878 | /* everything else is partition stuff */ |
3879 | while (*chptr) { |
3880 | chptr2 = chptr; |
3881 | while (*chptr2 && *chptr2 != '[') |
3882 | chptr2++; |
3883 | if (!*chptr2) |
3884 | break; |
3885 | |
3886 | /* yank off the numbers at the end */ |
3887 | chptr2--; |
3888 | while (isdigit(*chptr2) && chptr2 > chptr) |
3889 | chptr2--; |
3890 | chptr2++; |
3891 | *chptr2 = '\0'; |
3892 | |
3893 | /* Better, now we need the /dev/ back. We're |
3894 | * done with everything before this point, so |
3895 | * we can just put the /dev/ part there. |
3896 | * There will always be room. */ |
3897 | memcpy(chptr - 5, "/dev/", 5); |
3898 | rc = checkDeviceBootloader(chptr - 5, boot); |
3899 | if (rc != 2) { |
3900 | return rc; |
3901 | } |
3902 | |
3903 | chptr = chptr2 + 1; |
3904 | /* skip the [11] bit */ |
3905 | while (*chptr && !isspace(*chptr)) |
3906 | chptr++; |
3907 | /* and move to the next one */ |
3908 | while (*chptr && isspace(*chptr)) |
3909 | chptr++; |
3910 | } |
3911 | |
3912 | /* we're good to go */ |
3913 | return 2; |
3914 | } |
3915 | |
3916 | chptr = end + 1; |
3917 | } |
3918 | |
3919 | fprintf(stderr, |
3920 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), |
3921 | mdDev); |
3922 | return 0; |
3923 | } |
3924 | |
3925 | int checkForLilo(struct grubConfig *config) |
3926 | { |
3927 | int fd; |
3928 | unsigned char boot[512]; |
3929 | struct singleLine *line; |
3930 | |
3931 | for (line = config->theLines; line; line = line->next) |
3932 | if (line->type == LT_BOOT) |
3933 | break; |
3934 | |
3935 | if (!line) { |
3936 | fprintf(stderr, |
3937 | _ |
3938 | ("grubby: no boot line found in lilo configuration\n")); |
3939 | return 1; |
3940 | } |
3941 | |
3942 | if (line->numElements != 2) |
3943 | return 1; |
3944 | |
3945 | fd = open("/boot/boot.b", O_RDONLY); |
3946 | if (fd < 0) { |
3947 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
3948 | "/boot/boot.b", strerror(errno)); |
3949 | return 1; |
3950 | } |
3951 | |
3952 | if (read(fd, boot, 512) != 512) { |
3953 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
3954 | "/boot/boot.b", strerror(errno)); |
3955 | return 1; |
3956 | } |
3957 | close(fd); |
3958 | |
3959 | if (!strncmp("/dev/md", line->elements[1].item, 7)) |
3960 | return checkLiloOnRaid(line->elements[1].item, boot); |
3961 | |
3962 | return checkDeviceBootloader(line->elements[1].item, boot); |
3963 | } |
3964 | |
3965 | int checkForGrub2(struct grubConfig *config) |
3966 | { |
3967 | if (!access("/etc/grub.d/", R_OK)) |
3968 | return 2; |
3969 | |
3970 | return 1; |
3971 | } |
3972 | |
3973 | int checkForGrub(struct grubConfig *config) |
3974 | { |
3975 | int fd; |
3976 | unsigned char bootSect[512]; |
3977 | char *boot; |
3978 | int onSuse = isSuseSystem(); |
3979 | |
3980 | if (onSuse) { |
3981 | if (parseSuseGrubConf(NULL, &boot)) |
3982 | return 0; |
3983 | } else { |
3984 | if (parseSysconfigGrub(NULL, &boot)) |
3985 | return 0; |
3986 | } |
3987 | |
3988 | /* assume grub is not installed -- not an error condition */ |
3989 | if (!boot) |
3990 | return 0; |
3991 | |
3992 | fd = open("/boot/grub/stage1", O_RDONLY); |
3993 | if (fd < 0) |
3994 | /* this doesn't exist if grub hasn't been installed */ |
3995 | return 0; |
3996 | |
3997 | if (read(fd, bootSect, 512) != 512) { |
3998 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
3999 | "/boot/grub/stage1", strerror(errno)); |
4000 | close(fd); |
4001 | return 1; |
4002 | } |
4003 | close(fd); |
4004 | |
4005 | /* The more elaborate checks do not work on SuSE. The checks done |
4006 | * seem to be reasonble (at least for now), so just return success |
4007 | */ |
4008 | if (onSuse) |
4009 | return 2; |
4010 | |
4011 | return checkDeviceBootloader(boot, bootSect); |
4012 | } |
4013 | |
4014 | int checkForExtLinux(struct grubConfig *config) |
4015 | { |
4016 | int fd; |
4017 | unsigned char bootSect[512]; |
4018 | char *boot; |
4019 | char executable[] = "/boot/extlinux/extlinux"; |
4020 | |
4021 | printf("entered: checkForExtLinux()\n"); |
4022 | |
4023 | if (parseSysconfigGrub(NULL, &boot)) |
4024 | return 0; |
4025 | |
4026 | /* assume grub is not installed -- not an error condition */ |
4027 | if (!boot) |
4028 | return 0; |
4029 | |
4030 | fd = open(executable, O_RDONLY); |
4031 | if (fd < 0) |
4032 | /* this doesn't exist if grub hasn't been installed */ |
4033 | return 0; |
4034 | |
4035 | if (read(fd, bootSect, 512) != 512) { |
4036 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4037 | executable, strerror(errno)); |
4038 | return 1; |
4039 | } |
4040 | close(fd); |
4041 | |
4042 | return checkDeviceBootloader(boot, bootSect); |
4043 | } |
4044 | |
4045 | int checkForYaboot(struct grubConfig *config) |
4046 | { |
4047 | /* |
4048 | * This is a simplistic check that we consider good enough for own puporses |
4049 | * |
4050 | * If we were to properly check if yaboot is *installed* we'd need to: |
4051 | * 1) get the system boot device (LT_BOOT) |
4052 | * 2) considering it's a raw filesystem, check if the yaboot binary matches |
4053 | * the content on the boot device |
4054 | * 3) if not, copy the binary to a temporary file and run "addnote" on it |
4055 | * 4) check again if binary and boot device contents match |
4056 | */ |
4057 | if (!access("/etc/yaboot.conf", R_OK)) |
4058 | return 2; |
4059 | |
4060 | return 1; |
4061 | } |
4062 | |
4063 | int checkForElilo(struct grubConfig *config) |
4064 | { |
4065 | if (!access("/etc/elilo.conf", R_OK)) |
4066 | return 2; |
4067 | |
4068 | return 1; |
4069 | } |
4070 | |
4071 | static char *getRootSpecifier(char *str) |
4072 | { |
4073 | char *idx, *rootspec = NULL; |
4074 | |
4075 | if (*str == '(') { |
4076 | idx = rootspec = strdup(str); |
4077 | while (*idx && (*idx != ')') && (!isspace(*idx))) |
4078 | idx++; |
4079 | *(++idx) = '\0'; |
4080 | } |
4081 | return rootspec; |
4082 | } |
4083 | |
4084 | static char *getInitrdVal(struct grubConfig *config, |
4085 | const char *prefix, struct singleLine *tmplLine, |
4086 | const char *newKernelInitrd, |
4087 | const char **extraInitrds, int extraInitrdCount) |
4088 | { |
4089 | char *initrdVal, *end; |
4090 | int i; |
4091 | size_t totalSize; |
4092 | size_t prefixLen; |
4093 | char separatorChar; |
4094 | |
4095 | prefixLen = strlen(prefix); |
4096 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ; |
4097 | |
4098 | for (i = 0; i < extraInitrdCount; i++) { |
4099 | totalSize += sizeof(separatorChar); |
4100 | totalSize += strlen(extraInitrds[i]) - prefixLen; |
4101 | } |
4102 | |
4103 | initrdVal = end = malloc(totalSize); |
4104 | |
4105 | end = stpcpy(end, newKernelInitrd + prefixLen); |
4106 | |
4107 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; |
4108 | for (i = 0; i < extraInitrdCount; i++) { |
4109 | const char *extraInitrd; |
4110 | int j; |
4111 | |
4112 | extraInitrd = extraInitrds[i] + prefixLen; |
4113 | /* Don't add entries that are already there */ |
4114 | if (tmplLine != NULL) { |
4115 | for (j = 2; j < tmplLine->numElements; j++) |
4116 | if (strcmp |
4117 | (extraInitrd, |
4118 | tmplLine->elements[j].item) == 0) |
4119 | break; |
4120 | |
4121 | if (j != tmplLine->numElements) |
4122 | continue; |
4123 | } |
4124 | |
4125 | *end++ = separatorChar; |
4126 | end = stpcpy(end, extraInitrd); |
4127 | } |
4128 | |
4129 | return initrdVal; |
4130 | } |
4131 | |
4132 | int addNewKernel(struct grubConfig *config, struct singleEntry *template, |
4133 | const char *prefix, |
4134 | const char *newKernelPath, const char *newKernelTitle, |
4135 | const char *newKernelArgs, const char *newKernelInitrd, |
4136 | const char **extraInitrds, int extraInitrdCount, |
4137 | const char *newMBKernel, const char *newMBKernelArgs, |
4138 | const char *newDevTreePath) |
4139 | { |
4140 | struct singleEntry *new; |
4141 | struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL; |
4142 | int needs; |
4143 | char *chptr; |
4144 | |
4145 | if (!newKernelPath) |
4146 | return 0; |
4147 | |
4148 | /* if the newKernelTitle is too long silently munge it into something |
4149 | * we can live with. truncating is first check, then we'll just mess with |
4150 | * it until it looks better */ |
4151 | if (config->cfi->maxTitleLength && |
4152 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { |
4153 | char *buf = alloca(config->cfi->maxTitleLength + 7); |
4154 | char *numBuf = alloca(config->cfi->maxTitleLength + 1); |
4155 | int i = 1; |
4156 | |
4157 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, |
4158 | newKernelTitle); |
4159 | while (findEntryByPath(config, buf, NULL, NULL)) { |
4160 | sprintf(numBuf, "%d", i++); |
4161 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); |
4162 | } |
4163 | |
4164 | newKernelTitle = buf + 6; |
4165 | } |
4166 | |
4167 | new = malloc(sizeof(*new)); |
4168 | new->skip = 0; |
4169 | new->multiboot = 0; |
4170 | new->next = config->entries; |
4171 | new->lines = NULL; |
4172 | config->entries = new; |
4173 | |
4174 | /* copy/update from the template */ |
4175 | needs = NEED_KERNEL | NEED_TITLE; |
4176 | if (newKernelInitrd) |
4177 | needs |= NEED_INITRD; |
4178 | if (newMBKernel) { |
4179 | needs |= NEED_MB; |
4180 | new->multiboot = 1; |
4181 | } |
4182 | if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi)) |
4183 | needs |= NEED_DEVTREE; |
4184 | |
4185 | if (template) { |
4186 | for (masterLine = template->lines; |
4187 | masterLine && (tmplLine = lineDup(masterLine)); |
4188 | lineFree(tmplLine), masterLine = masterLine->next) { |
4189 | dbgPrintf("addNewKernel processing %d\n", |
4190 | tmplLine->type); |
4191 | |
4192 | /* skip comments */ |
4193 | chptr = tmplLine->indent; |
4194 | while (*chptr && isspace(*chptr)) |
4195 | chptr++; |
4196 | if (*chptr == '#') |
4197 | continue; |
4198 | |
4199 | if (iskernel(tmplLine->type) |
4200 | && tmplLine->numElements >= 2) { |
4201 | if (!template->multiboot && (needs & NEED_MB)) { |
4202 | /* it's not a multiboot template and |
4203 | * this is the kernel line. Try to |
4204 | * be intelligent about inserting the |
4205 | * hypervisor at the same time. |
4206 | */ |
4207 | if (config->cfi->mbHyperFirst) { |
4208 | /* insert the hypervisor first */ |
4209 | newLine = |
4210 | addLine(new, config->cfi, |
4211 | LT_HYPER, |
4212 | tmplLine->indent, |
4213 | newMBKernel + |
4214 | strlen(prefix)); |
4215 | /* set up for adding the |
4216 | * kernel line */ |
4217 | free(tmplLine->indent); |
4218 | tmplLine->indent = |
4219 | strdup(config-> |
4220 | secondaryIndent); |
4221 | needs &= ~NEED_MB; |
4222 | } |
4223 | if (needs & NEED_KERNEL) { |
4224 | /* use addLineTmpl to |
4225 | * preserve line elements, |
4226 | * otherwise we could just |
4227 | * call addLine. |
4228 | * Unfortunately this means |
4229 | * making some changes to the |
4230 | * template such as the |
4231 | * indent change above and |
4232 | * the type change below. |
4233 | */ |
4234 | struct keywordTypes *mbm_kw = |
4235 | getKeywordByType |
4236 | (LT_MBMODULE, config->cfi); |
4237 | if (mbm_kw) { |
4238 | tmplLine->type = |
4239 | LT_MBMODULE; |
4240 | free(tmplLine-> |
4241 | elements[0].item); |
4242 | tmplLine->elements[0]. |
4243 | item = |
4244 | strdup(mbm_kw->key); |
4245 | } |
4246 | newLine = |
4247 | addLineTmpl(new, tmplLine, |
4248 | newLine, |
4249 | newKernelPath + |
4250 | strlen(prefix), |
4251 | config->cfi); |
4252 | needs &= ~NEED_KERNEL; |
4253 | } |
4254 | if (needs & NEED_MB) { /* !mbHyperFirst */ |
4255 | newLine = |
4256 | addLine(new, config->cfi, |
4257 | LT_HYPER, |
4258 | config-> |
4259 | secondaryIndent, |
4260 | newMBKernel + |
4261 | strlen(prefix)); |
4262 | needs &= ~NEED_MB; |
4263 | } |
4264 | } else if (needs & NEED_KERNEL) { |
4265 | newLine = |
4266 | addLineTmpl(new, tmplLine, newLine, |
4267 | newKernelPath + |
4268 | strlen(prefix), |
4269 | config->cfi); |
4270 | needs &= ~NEED_KERNEL; |
4271 | } |
4272 | |
4273 | } else if (tmplLine->type == LT_HYPER && |
4274 | tmplLine->numElements >= 2) { |
4275 | if (needs & NEED_MB) { |
4276 | newLine = |
4277 | addLineTmpl(new, tmplLine, newLine, |
4278 | newMBKernel + |
4279 | strlen(prefix), |
4280 | config->cfi); |
4281 | needs &= ~NEED_MB; |
4282 | } |
4283 | |
4284 | } else if (tmplLine->type == LT_MBMODULE && |
4285 | tmplLine->numElements >= 2) { |
4286 | if (new->multiboot) { |
4287 | if (needs & NEED_KERNEL) { |
4288 | newLine = |
4289 | addLineTmpl(new, tmplLine, |
4290 | newLine, |
4291 | newKernelPath + |
4292 | strlen(prefix), |
4293 | config->cfi); |
4294 | needs &= ~NEED_KERNEL; |
4295 | } else if (config->cfi->mbInitRdIsModule |
4296 | && (needs & NEED_INITRD)) { |
4297 | char *initrdVal; |
4298 | initrdVal = |
4299 | getInitrdVal(config, prefix, |
4300 | tmplLine, |
4301 | newKernelInitrd, |
4302 | extraInitrds, |
4303 | extraInitrdCount); |
4304 | newLine = |
4305 | addLineTmpl(new, tmplLine, |
4306 | newLine, |
4307 | initrdVal, |
4308 | config->cfi); |
4309 | free(initrdVal); |
4310 | needs &= ~NEED_INITRD; |
4311 | } |
4312 | } else if (needs & NEED_KERNEL) { |
4313 | /* template is multi but new is not, |
4314 | * insert the kernel in the first |
4315 | * module slot |
4316 | */ |
4317 | tmplLine->type = |
4318 | preferredLineType(LT_KERNEL, |
4319 | config->cfi); |
4320 | free(tmplLine->elements[0].item); |
4321 | tmplLine->elements[0].item = |
4322 | strdup(getKeywordByType |
4323 | (tmplLine->type, |
4324 | config->cfi)->key); |
4325 | newLine = |
4326 | addLineTmpl(new, tmplLine, newLine, |
4327 | newKernelPath + |
4328 | strlen(prefix), |
4329 | config->cfi); |
4330 | needs &= ~NEED_KERNEL; |
4331 | } else if (needs & NEED_INITRD) { |
4332 | char *initrdVal; |
4333 | /* template is multi but new is not, |
4334 | * insert the initrd in the second |
4335 | * module slot |
4336 | */ |
4337 | tmplLine->type = |
4338 | preferredLineType(LT_INITRD, |
4339 | config->cfi); |
4340 | free(tmplLine->elements[0].item); |
4341 | tmplLine->elements[0].item = |
4342 | strdup(getKeywordByType |
4343 | (tmplLine->type, |
4344 | config->cfi)->key); |
4345 | initrdVal = |
4346 | getInitrdVal(config, prefix, |
4347 | tmplLine, |
4348 | newKernelInitrd, |
4349 | extraInitrds, |
4350 | extraInitrdCount); |
4351 | newLine = |
4352 | addLineTmpl(new, tmplLine, newLine, |
4353 | initrdVal, config->cfi); |
4354 | free(initrdVal); |
4355 | needs &= ~NEED_INITRD; |
4356 | } |
4357 | |
4358 | } else if (isinitrd(tmplLine->type) |
4359 | && tmplLine->numElements >= 2) { |
4360 | if (needs & NEED_INITRD && new->multiboot |
4361 | && !template->multiboot |
4362 | && config->cfi->mbInitRdIsModule) { |
4363 | /* make sure we don't insert the |
4364 | * module initrd before the module |
4365 | * kernel... if we don't do it here, |
4366 | * it will be inserted following the |
4367 | * template. |
4368 | */ |
4369 | if (!needs & NEED_KERNEL) { |
4370 | char *initrdVal; |
4371 | |
4372 | initrdVal = |
4373 | getInitrdVal(config, prefix, |
4374 | tmplLine, |
4375 | newKernelInitrd, |
4376 | extraInitrds, |
4377 | extraInitrdCount); |
4378 | newLine = |
4379 | addLine(new, config->cfi, |
4380 | LT_MBMODULE, |
4381 | config-> |
4382 | secondaryIndent, |
4383 | initrdVal); |
4384 | free(initrdVal); |
4385 | needs &= ~NEED_INITRD; |
4386 | } |
4387 | } else if (needs & NEED_INITRD) { |
4388 | char *initrdVal; |
4389 | initrdVal = |
4390 | getInitrdVal(config, prefix, |
4391 | tmplLine, |
4392 | newKernelInitrd, |
4393 | extraInitrds, |
4394 | extraInitrdCount); |
4395 | newLine = |
4396 | addLineTmpl(new, tmplLine, newLine, |
4397 | initrdVal, config->cfi); |
4398 | free(initrdVal); |
4399 | needs &= ~NEED_INITRD; |
4400 | } |
4401 | |
4402 | } else if (tmplLine->type == LT_MENUENTRY && |
4403 | (needs & NEED_TITLE)) { |
4404 | requote(tmplLine, config->cfi); |
4405 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4406 | strcpy(nkt, "'"); |
4407 | strcat(nkt, newKernelTitle); |
4408 | strcat(nkt, "'"); |
4409 | newLine = |
4410 | addLineTmpl(new, tmplLine, newLine, nkt, |
4411 | config->cfi); |
4412 | free(nkt); |
4413 | needs &= ~NEED_TITLE; |
4414 | } else if (tmplLine->type == LT_TITLE && |
4415 | (needs & NEED_TITLE)) { |
4416 | if (tmplLine->numElements >= 2) { |
4417 | newLine = |
4418 | addLineTmpl(new, tmplLine, newLine, |
4419 | newKernelTitle, |
4420 | config->cfi); |
4421 | needs &= ~NEED_TITLE; |
4422 | } else if (tmplLine->numElements == 1 && |
4423 | config->cfi->titleBracketed) { |
4424 | /* addLineTmpl doesn't handle |
4425 | * titleBracketed */ |
4426 | newLine = |
4427 | addLine(new, config->cfi, LT_TITLE, |
4428 | tmplLine->indent, |
4429 | newKernelTitle); |
4430 | needs &= ~NEED_TITLE; |
4431 | } |
4432 | } else if (tmplLine->type == LT_ECHO) { |
4433 | requote(tmplLine, config->cfi); |
4434 | static const char *prefix = "'Loading "; |
4435 | if (tmplLine->numElements > 1 && |
4436 | strstr(tmplLine->elements[1].item, prefix) |
4437 | && masterLine->next |
4438 | && iskernel(masterLine->next->type)) { |
4439 | char *newTitle = |
4440 | malloc(strlen(prefix) + |
4441 | strlen(newKernelTitle) + 2); |
4442 | |
4443 | strcpy(newTitle, prefix); |
4444 | strcat(newTitle, newKernelTitle); |
4445 | strcat(newTitle, "'"); |
4446 | newLine = |
4447 | addLine(new, config->cfi, LT_ECHO, |
4448 | tmplLine->indent, newTitle); |
4449 | free(newTitle); |
4450 | } else { |
4451 | /* pass through other lines from the |
4452 | * template */ |
4453 | newLine = |
4454 | addLineTmpl(new, tmplLine, newLine, |
4455 | NULL, config->cfi); |
4456 | } |
4457 | } else if (tmplLine->type == LT_DEVTREE && |
4458 | tmplLine->numElements == 2 |
4459 | && newDevTreePath) { |
4460 | newLine = |
4461 | addLineTmpl(new, tmplLine, newLine, |
4462 | newDevTreePath + strlen(prefix), |
4463 | config->cfi); |
4464 | needs &= ~NEED_DEVTREE; |
4465 | } else if (tmplLine->type == LT_ENTRY_END |
4466 | && needs & NEED_DEVTREE) { |
4467 | const char *ndtp = newDevTreePath; |
4468 | if (!strncmp |
4469 | (newDevTreePath, prefix, strlen(prefix))) |
4470 | ndtp += strlen(prefix); |
4471 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4472 | config->secondaryIndent, |
4473 | ndtp); |
4474 | needs &= ~NEED_DEVTREE; |
4475 | newLine = |
4476 | addLineTmpl(new, tmplLine, newLine, NULL, |
4477 | config->cfi); |
4478 | } else { |
4479 | /* pass through other lines from the template */ |
4480 | newLine = |
4481 | addLineTmpl(new, tmplLine, newLine, NULL, |
4482 | config->cfi); |
4483 | } |
4484 | } |
4485 | |
4486 | } else { |
4487 | /* don't have a template, so start the entry with the |
4488 | * appropriate starting line |
4489 | */ |
4490 | switch (config->cfi->entryStart) { |
4491 | case LT_KERNEL: |
4492 | case LT_KERNEL_EFI: |
4493 | case LT_KERNEL_16: |
4494 | if (new->multiboot && config->cfi->mbHyperFirst) { |
4495 | /* fall through to LT_HYPER */ |
4496 | } else { |
4497 | newLine = addLine(new, config->cfi, |
4498 | preferredLineType(LT_KERNEL, |
4499 | config-> |
4500 | cfi), |
4501 | config->primaryIndent, |
4502 | newKernelPath + |
4503 | strlen(prefix)); |
4504 | needs &= ~NEED_KERNEL; |
4505 | break; |
4506 | } |
4507 | |
4508 | case LT_HYPER: |
4509 | newLine = addLine(new, config->cfi, LT_HYPER, |
4510 | config->primaryIndent, |
4511 | newMBKernel + strlen(prefix)); |
4512 | needs &= ~NEED_MB; |
4513 | break; |
4514 | |
4515 | case LT_MENUENTRY:{ |
4516 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4517 | strcpy(nkt, "'"); |
4518 | strcat(nkt, newKernelTitle); |
4519 | strcat(nkt, "'"); |
4520 | newLine = |
4521 | addLine(new, config->cfi, LT_MENUENTRY, |
4522 | config->primaryIndent, nkt); |
4523 | free(nkt); |
4524 | needs &= ~NEED_TITLE; |
4525 | needs |= NEED_END; |
4526 | break; |
4527 | } |
4528 | case LT_TITLE: |
4529 | if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above) |
4530 | char *templabel; |
4531 | int x = 0, y = 0; |
4532 | |
4533 | templabel = strdup(newKernelTitle); |
4534 | while (templabel[x]) { |
4535 | if (templabel[x] == ' ') { |
4536 | y = x; |
4537 | while (templabel[y]) { |
4538 | templabel[y] = |
4539 | templabel[y + 1]; |
4540 | y++; |
4541 | } |
4542 | } |
4543 | x++; |
4544 | } |
4545 | newLine = addLine(new, config->cfi, LT_TITLE, |
4546 | config->primaryIndent, |
4547 | templabel); |
4548 | free(templabel); |
4549 | } else { |
4550 | newLine = addLine(new, config->cfi, LT_TITLE, |
4551 | config->primaryIndent, |
4552 | newKernelTitle); |
4553 | } |
4554 | needs &= ~NEED_TITLE; |
4555 | break; |
4556 | |
4557 | default: |
4558 | abort(); |
4559 | } |
4560 | } |
4561 | |
4562 | struct singleLine *endLine = NULL; |
4563 | endLine = getLineByType(LT_ENTRY_END, new->lines); |
4564 | if (endLine) { |
4565 | removeLine(new, endLine); |
4566 | needs |= NEED_END; |
4567 | } |
4568 | |
4569 | /* add the remainder of the lines, i.e. those that either |
4570 | * weren't present in the template, or in the case of no template, |
4571 | * all the lines following the entryStart. |
4572 | */ |
4573 | if (needs & NEED_TITLE) { |
4574 | newLine = addLine(new, config->cfi, LT_TITLE, |
4575 | config->secondaryIndent, newKernelTitle); |
4576 | needs &= ~NEED_TITLE; |
4577 | } |
4578 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
4579 | newLine = addLine(new, config->cfi, LT_HYPER, |
4580 | config->secondaryIndent, |
4581 | newMBKernel + strlen(prefix)); |
4582 | needs &= ~NEED_MB; |
4583 | } |
4584 | if (needs & NEED_KERNEL) { |
4585 | newLine = addLine(new, config->cfi, |
4586 | (new->multiboot |
4587 | && getKeywordByType(LT_MBMODULE, |
4588 | config->cfi)) |
4589 | ? LT_MBMODULE : preferredLineType(LT_KERNEL, |
4590 | config-> |
4591 | cfi), |
4592 | config->secondaryIndent, |
4593 | newKernelPath + strlen(prefix)); |
4594 | needs &= ~NEED_KERNEL; |
4595 | } |
4596 | if (needs & NEED_MB) { |
4597 | newLine = addLine(new, config->cfi, LT_HYPER, |
4598 | config->secondaryIndent, |
4599 | newMBKernel + strlen(prefix)); |
4600 | needs &= ~NEED_MB; |
4601 | } |
4602 | if (needs & NEED_INITRD) { |
4603 | char *initrdVal; |
4604 | initrdVal = |
4605 | getInitrdVal(config, prefix, NULL, newKernelInitrd, |
4606 | extraInitrds, extraInitrdCount); |
4607 | newLine = |
4608 | addLine(new, config->cfi, |
4609 | (new->multiboot |
4610 | && getKeywordByType(LT_MBMODULE, config->cfi)) |
4611 | ? LT_MBMODULE : preferredLineType(LT_INITRD, |
4612 | config->cfi), |
4613 | config->secondaryIndent, initrdVal); |
4614 | free(initrdVal); |
4615 | needs &= ~NEED_INITRD; |
4616 | } |
4617 | if (needs & NEED_DEVTREE) { |
4618 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4619 | config->secondaryIndent, newDevTreePath); |
4620 | needs &= ~NEED_DEVTREE; |
4621 | } |
4622 | |
4623 | /* NEEDS_END must be last on bootloaders that need it... */ |
4624 | if (needs & NEED_END) { |
4625 | newLine = addLine(new, config->cfi, LT_ENTRY_END, |
4626 | config->secondaryIndent, NULL); |
4627 | needs &= ~NEED_END; |
4628 | } |
4629 | |
4630 | if (needs) { |
4631 | printf(_("grubby: needs=%d, aborting\n"), needs); |
4632 | abort(); |
4633 | } |
4634 | |
4635 | if (updateImage(config, "0", prefix, newKernelArgs, NULL, |
4636 | newMBKernelArgs, NULL)) |
4637 | return 1; |
4638 | |
4639 | return 0; |
4640 | } |
4641 | |
4642 | int main(int argc, const char **argv) |
4643 | { |
4644 | poptContext optCon; |
4645 | const char *grubConfig = NULL; |
4646 | char *outputFile = NULL; |
4647 | int arg = 0; |
4648 | int flags = 0; |
4649 | int badImageOkay = 0; |
4650 | int configureGrub2 = 0; |
4651 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
4652 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; |
4653 | int configureExtLinux = 0; |
4654 | int bootloaderProbe = 0; |
4655 | int extraInitrdCount = 0; |
4656 | char *updateKernelPath = NULL; |
4657 | char *newKernelPath = NULL; |
4658 | char *removeKernelPath = NULL; |
4659 | char *newKernelArgs = NULL; |
4660 | char *newKernelInitrd = NULL; |
4661 | char *newKernelTitle = NULL; |
4662 | char *newDevTreePath = NULL; |
4663 | char *newMBKernel = NULL; |
4664 | char *newMBKernelArgs = NULL; |
4665 | char *removeMBKernelArgs = NULL; |
4666 | char *removeMBKernel = NULL; |
4667 | char *bootPrefix = NULL; |
4668 | char *defaultKernel = NULL; |
4669 | char *removeArgs = NULL; |
4670 | char *kernelInfo = NULL; |
4671 | char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
4672 | char *envPath = NULL; |
4673 | const char *chptr = NULL; |
4674 | struct configFileInfo *cfi = NULL; |
4675 | struct grubConfig *config; |
4676 | struct singleEntry *template = NULL; |
4677 | int copyDefault = 0, makeDefault = 0; |
4678 | int displayDefault = 0; |
4679 | int displayDefaultIndex = 0; |
4680 | int displayDefaultTitle = 0; |
4681 | int defaultIndex = -1; |
4682 | struct poptOption options[] = { |
4683 | {"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, |
4684 | _("add an entry for the specified kernel"), _("kernel-path")}, |
4685 | {"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, |
4686 | _("add an entry for the specified multiboot kernel"), NULL}, |
4687 | {"args", 0, POPT_ARG_STRING, &newKernelArgs, 0, |
4688 | _("default arguments for the new kernel or new arguments for " |
4689 | "kernel being updated"), _("args")}, |
4690 | {"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, |
4691 | _("default arguments for the new multiboot kernel or " |
4692 | "new arguments for multiboot kernel being updated"), NULL}, |
4693 | {"bad-image-okay", 0, 0, &badImageOkay, 0, |
4694 | _ |
4695 | ("don't sanity check images in boot entries (for testing only)"), |
4696 | NULL}, |
4697 | {"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, |
4698 | _ |
4699 | ("filestystem which contains /boot directory (for testing only)"), |
4700 | _("bootfs")}, |
4701 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
4702 | {"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
4703 | _("check which bootloader is installed on boot sector")}, |
4704 | #endif |
4705 | {"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, |
4706 | _("path to grub config file to update (\"-\" for stdin)"), |
4707 | _("path")}, |
4708 | {"copy-default", 0, 0, ©Default, 0, |
4709 | _("use the default boot entry as a template for the new entry " |
4710 | "being added; if the default is not a linux image, or if " |
4711 | "the kernel referenced by the default image does not exist, " |
4712 | "the first linux entry whose kernel does exist is used as the " |
4713 | "template"), NULL}, |
4714 | {"debug", 0, 0, &debug, 0, |
4715 | _("print debugging information for failures")}, |
4716 | {"default-kernel", 0, 0, &displayDefault, 0, |
4717 | _("display the path of the default kernel")}, |
4718 | {"default-index", 0, 0, &displayDefaultIndex, 0, |
4719 | _("display the index of the default kernel")}, |
4720 | {"default-title", 0, 0, &displayDefaultTitle, 0, |
4721 | _("display the title of the default kernel")}, |
4722 | {"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4723 | _("device tree file for new stanza"), _("dtb-path")}, |
4724 | {"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4725 | _("device tree directory for new stanza"), _("dtb-path")}, |
4726 | {"elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
4727 | _("configure elilo bootloader")}, |
4728 | {"efi", 0, POPT_ARG_NONE, &isEfi, 0, |
4729 | _("force grub2 stanzas to use efi")}, |
4730 | {"env", 0, POPT_ARG_STRING, &envPath, 0, |
4731 | _("path for environment data"), |
4732 | _("path")}, |
4733 | {"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
4734 | _("configure extlinux bootloader (from syslinux)")}, |
4735 | {"grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
4736 | _("configure grub bootloader")}, |
4737 | {"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
4738 | _("configure grub2 bootloader")}, |
4739 | {"info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
4740 | _("display boot information for specified kernel"), |
4741 | _("kernel-path")}, |
4742 | {"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, |
4743 | _("initrd image for the new kernel"), _("initrd-path")}, |
4744 | {"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
4745 | _ |
4746 | ("auxiliary initrd image for things other than the new kernel"), |
4747 | _("initrd-path")}, |
4748 | {"lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
4749 | _("configure lilo bootloader")}, |
4750 | {"make-default", 0, 0, &makeDefault, 0, |
4751 | _("make the newly added entry the default boot entry"), NULL}, |
4752 | {"output-file", 'o', POPT_ARG_STRING, &outputFile, 0, |
4753 | _("path to output updated config file (\"-\" for stdout)"), |
4754 | _("path")}, |
4755 | {"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, |
4756 | _("remove kernel arguments"), NULL}, |
4757 | {"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, |
4758 | _("remove multiboot kernel arguments"), NULL}, |
4759 | {"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, |
4760 | _("remove all entries for the specified kernel"), |
4761 | _("kernel-path")}, |
4762 | {"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, |
4763 | _("remove all entries for the specified multiboot kernel"), |
4764 | NULL}, |
4765 | {"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, |
4766 | _("make the first entry referencing the specified kernel " |
4767 | "the default"), _("kernel-path")}, |
4768 | {"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, |
4769 | _("make the given entry index the default entry"), |
4770 | _("entry-index")}, |
4771 | {"silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
4772 | _("configure silo bootloader")}, |
4773 | {"title", 0, POPT_ARG_STRING, &newKernelTitle, 0, |
4774 | _("title to use for the new kernel entry"), _("entry-title")}, |
4775 | {"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, |
4776 | _("updated information for the specified kernel"), |
4777 | _("kernel-path")}, |
4778 | {"version", 'v', 0, NULL, 'v', |
4779 | _("print the version of this program and exit"), NULL}, |
4780 | {"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, |
4781 | _("configure yaboot bootloader")}, |
4782 | {"zipl", 0, POPT_ARG_NONE, &configureZipl, 0, |
4783 | _("configure zipl bootloader")}, |
4784 | POPT_AUTOHELP {0, 0, 0, 0, 0} |
4785 | }; |
4786 | |
4787 | useextlinuxmenu = 0; |
4788 | |
4789 | int i = 0; |
4790 | for (int j = 1; j < argc; j++) |
4791 | i += strlen(argv[j]) + 1; |
4792 | saved_command_line = malloc(i); |
4793 | if (!saved_command_line) { |
4794 | fprintf(stderr, "grubby: %m\n"); |
4795 | exit(1); |
4796 | } |
4797 | saved_command_line[0] = '\0'; |
4798 | for (int j = 1; j < argc; j++) { |
4799 | strcat(saved_command_line, argv[j]); |
4800 | strncat(saved_command_line, j == argc - 1 ? "" : " ", 1); |
4801 | } |
4802 | |
4803 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
4804 | poptReadDefaultConfig(optCon, 1); |
4805 | |
4806 | while ((arg = poptGetNextOpt(optCon)) >= 0) { |
4807 | switch (arg) { |
4808 | case 'v': |
4809 | printf("grubby version %s\n", VERSION); |
4810 | exit(0); |
4811 | break; |
4812 | case 'i': |
4813 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { |
4814 | extraInitrds[extraInitrdCount++] = |
4815 | strdup(poptGetOptArg(optCon)); |
4816 | } else { |
4817 | fprintf(stderr, |
4818 | _ |
4819 | ("grubby: extra initrd maximum is %d\n"), |
4820 | extraInitrdCount); |
4821 | return 1; |
4822 | } |
4823 | break; |
4824 | } |
4825 | } |
4826 | |
4827 | if (arg < -1) { |
4828 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), |
4829 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), |
4830 | poptStrerror(arg)); |
4831 | return 1; |
4832 | } |
4833 | |
4834 | if ((chptr = poptGetArg(optCon))) { |
4835 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); |
4836 | return 1; |
4837 | } |
4838 | |
4839 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
4840 | configureYaboot + configureSilo + configureZipl + |
4841 | configureExtLinux) > 1) { |
4842 | fprintf(stderr, |
4843 | _("grubby: cannot specify multiple bootloaders\n")); |
4844 | return 1; |
4845 | } else if (bootloaderProbe && grubConfig) { |
4846 | fprintf(stderr, |
4847 | _ |
4848 | ("grubby: cannot specify config file with --bootloader-probe\n")); |
4849 | return 1; |
4850 | } else if (configureGrub2) { |
4851 | cfi = &grub2ConfigType; |
4852 | if (envPath) |
4853 | cfi->envFile = envPath; |
4854 | } else if (configureLilo) { |
4855 | cfi = &liloConfigType; |
4856 | } else if (configureGrub) { |
4857 | cfi = &grubConfigType; |
4858 | } else if (configureELilo) { |
4859 | cfi = &eliloConfigType; |
4860 | } else if (configureYaboot) { |
4861 | cfi = &yabootConfigType; |
4862 | } else if (configureSilo) { |
4863 | cfi = &siloConfigType; |
4864 | } else if (configureZipl) { |
4865 | cfi = &ziplConfigType; |
4866 | } else if (configureExtLinux) { |
4867 | cfi = &extlinuxConfigType; |
4868 | useextlinuxmenu = 1; |
4869 | } |
4870 | |
4871 | if (!cfi) { |
4872 | if (grub2FindConfig(&grub2ConfigType)) { |
4873 | cfi = &grub2ConfigType; |
4874 | if (envPath) |
4875 | cfi->envFile = envPath; |
4876 | } else |
4877 | #ifdef __ia64__ |
4878 | cfi = &eliloConfigType; |
4879 | #elif __powerpc__ |
4880 | cfi = &yabootConfigType; |
4881 | #elif __sparc__ |
4882 | cfi = &siloConfigType; |
4883 | #elif __s390__ |
4884 | cfi = &ziplConfigType; |
4885 | #elif __s390x__ |
4886 | cfi = &ziplConfigtype; |
4887 | #else |
4888 | cfi = &grubConfigType; |
4889 | #endif |
4890 | } |
4891 | |
4892 | if (!grubConfig) { |
4893 | if (cfi->findConfig) |
4894 | grubConfig = cfi->findConfig(cfi); |
4895 | if (!grubConfig) |
4896 | grubConfig = cfi->defaultConfig; |
4897 | } |
4898 | |
4899 | if (bootloaderProbe && (displayDefault || kernelInfo || |
4900 | newKernelPath || removeKernelPath || makeDefault |
4901 | || defaultKernel || displayDefaultIndex |
4902 | || displayDefaultTitle |
4903 | || (defaultIndex >= 0))) { |
4904 | fprintf(stderr, |
4905 | _("grubby: --bootloader-probe may not be used with " |
4906 | "specified option")); |
4907 | return 1; |
4908 | } |
4909 | |
4910 | if ((displayDefault || kernelInfo) && (newKernelPath || |
4911 | removeKernelPath)) { |
4912 | fprintf(stderr, _("grubby: --default-kernel and --info may not " |
4913 | "be used when adding or removing kernels\n")); |
4914 | return 1; |
4915 | } |
4916 | |
4917 | if (newKernelPath && !newKernelTitle) { |
4918 | fprintf(stderr, _("grubby: kernel title must be specified\n")); |
4919 | return 1; |
4920 | } else if (!newKernelPath && (copyDefault || |
4921 | (newKernelInitrd && !updateKernelPath) || |
4922 | makeDefault || extraInitrdCount > 0)) { |
4923 | fprintf(stderr, _("grubby: kernel path expected\n")); |
4924 | return 1; |
4925 | } |
4926 | |
4927 | if (newKernelPath && updateKernelPath) { |
4928 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" |
4929 | "not be used together")); |
4930 | return 1; |
4931 | } |
4932 | |
4933 | if (makeDefault && defaultKernel) { |
4934 | fprintf(stderr, _("grubby: --make-default and --default-kernel " |
4935 | "may not be used together\n")); |
4936 | return 1; |
4937 | } else if (defaultKernel && removeKernelPath && |
4938 | !strcmp(defaultKernel, removeKernelPath)) { |
4939 | fprintf(stderr, |
4940 | _("grubby: cannot make removed kernel the default\n")); |
4941 | return 1; |
4942 | } else if (defaultKernel && newKernelPath && |
4943 | !strcmp(defaultKernel, newKernelPath)) { |
4944 | makeDefault = 1; |
4945 | defaultKernel = NULL; |
4946 | } else if (defaultKernel && (defaultIndex >= 0)) { |
4947 | fprintf(stderr, |
4948 | _("grubby: --set-default and --set-default-index " |
4949 | "may not be used together\n")); |
4950 | return 1; |
4951 | } |
4952 | |
4953 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
4954 | fprintf(stderr, |
4955 | _("grubby: output file must be specified if stdin " |
4956 | "is used\n")); |
4957 | return 1; |
4958 | } |
4959 | |
4960 | if (!removeKernelPath && !newKernelPath && !displayDefault |
4961 | && !defaultKernel && !kernelInfo && !bootloaderProbe |
4962 | && !updateKernelPath && !removeMBKernel && !displayDefaultIndex |
4963 | && !displayDefaultTitle && (defaultIndex == -1)) { |
4964 | fprintf(stderr, _("grubby: no action specified\n")); |
4965 | return 1; |
4966 | } |
4967 | |
4968 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; |
4969 | |
4970 | if (cfi->needsBootPrefix) { |
4971 | if (!bootPrefix) { |
4972 | bootPrefix = findBootPrefix(); |
4973 | if (!bootPrefix) |
4974 | return 1; |
4975 | } else { |
4976 | /* this shouldn't end with a / */ |
4977 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') |
4978 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; |
4979 | } |
4980 | } else { |
4981 | bootPrefix = ""; |
4982 | } |
4983 | |
4984 | if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) { |
4985 | fprintf(stderr, |
4986 | _("grubby: %s doesn't allow multiple initrds\n"), |
4987 | cfi->defaultConfig); |
4988 | return 1; |
4989 | } |
4990 | |
4991 | if (bootloaderProbe) { |
4992 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; |
4993 | struct grubConfig *lconfig, *gconfig, *yconfig, *econfig; |
4994 | |
4995 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
4996 | if (grub2config) { |
4997 | gconfig = readConfig(grub2config, &grub2ConfigType); |
4998 | if (!gconfig) |
4999 | gr2c = 1; |
5000 | else |
5001 | gr2c = checkForGrub2(gconfig); |
5002 | } |
5003 | |
5004 | const char *grubconfig = grubFindConfig(&grubConfigType); |
5005 | if (!access(grubconfig, F_OK)) { |
5006 | gconfig = readConfig(grubconfig, &grubConfigType); |
5007 | if (!gconfig) |
5008 | grc = 1; |
5009 | else |
5010 | grc = checkForGrub(gconfig); |
5011 | } |
5012 | |
5013 | if (!access(liloConfigType.defaultConfig, F_OK)) { |
5014 | lconfig = |
5015 | readConfig(liloConfigType.defaultConfig, |
5016 | &liloConfigType); |
5017 | if (!lconfig) |
5018 | lrc = 1; |
5019 | else |
5020 | lrc = checkForLilo(lconfig); |
5021 | } |
5022 | |
5023 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
5024 | econfig = readConfig(eliloConfigType.defaultConfig, |
5025 | &eliloConfigType); |
5026 | if (!econfig) |
5027 | erc = 1; |
5028 | else |
5029 | erc = checkForElilo(econfig); |
5030 | } |
5031 | |
5032 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
5033 | lconfig = |
5034 | readConfig(extlinuxConfigType.defaultConfig, |
5035 | &extlinuxConfigType); |
5036 | if (!lconfig) |
5037 | extrc = 1; |
5038 | else |
5039 | extrc = checkForExtLinux(lconfig); |
5040 | } |
5041 | |
5042 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
5043 | yconfig = readConfig(yabootConfigType.defaultConfig, |
5044 | &yabootConfigType); |
5045 | if (!yconfig) |
5046 | yrc = 1; |
5047 | else |
5048 | yrc = checkForYaboot(yconfig); |
5049 | } |
5050 | |
5051 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 |
5052 | || erc == 1) |
5053 | return 1; |
5054 | |
5055 | if (lrc == 2) |
5056 | printf("lilo\n"); |
5057 | if (gr2c == 2) |
5058 | printf("grub2\n"); |
5059 | if (grc == 2) |
5060 | printf("grub\n"); |
5061 | if (extrc == 2) |
5062 | printf("extlinux\n"); |
5063 | if (yrc == 2) |
5064 | printf("yaboot\n"); |
5065 | if (erc == 2) |
5066 | printf("elilo\n"); |
5067 | |
5068 | return 0; |
5069 | } |
5070 | |
5071 | if (grubConfig == NULL) { |
5072 | printf("Could not find bootloader configuration file.\n"); |
5073 | exit(1); |
5074 | } |
5075 | |
5076 | config = readConfig(grubConfig, cfi); |
5077 | if (!config) |
5078 | return 1; |
5079 | |
5080 | if (displayDefault) { |
5081 | struct singleLine *line; |
5082 | struct singleEntry *entry; |
5083 | char *rootspec; |
5084 | |
5085 | if (config->defaultImage == -1) |
5086 | return 0; |
5087 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5088 | cfi->defaultIsSaved) |
5089 | config->defaultImage = 0; |
5090 | entry = findEntryByIndex(config, config->defaultImage); |
5091 | if (!entry) |
5092 | return 0; |
5093 | if (!suitableImage(entry, bootPrefix, 0, flags)) |
5094 | return 0; |
5095 | |
5096 | line = |
5097 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
5098 | LT_KERNEL_16, entry->lines); |
5099 | if (!line) |
5100 | return 0; |
5101 | |
5102 | rootspec = getRootSpecifier(line->elements[1].item); |
5103 | printf("%s%s\n", bootPrefix, line->elements[1].item + |
5104 | ((rootspec != NULL) ? strlen(rootspec) : 0)); |
5105 | |
5106 | return 0; |
5107 | |
5108 | } else if (displayDefaultTitle) { |
5109 | struct singleLine *line; |
5110 | struct singleEntry *entry; |
5111 | |
5112 | if (config->defaultImage == -1) |
5113 | return 0; |
5114 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5115 | cfi->defaultIsSaved) |
5116 | config->defaultImage = 0; |
5117 | entry = findEntryByIndex(config, config->defaultImage); |
5118 | if (!entry) |
5119 | return 0; |
5120 | |
5121 | if (!configureGrub2) { |
5122 | char *title; |
5123 | line = getLineByType(LT_TITLE, entry->lines); |
5124 | if (!line) |
5125 | return 0; |
5126 | title = extractTitle(config, line); |
5127 | if (!title) |
5128 | return 0; |
5129 | printf("%s\n", title); |
5130 | free(title); |
5131 | } else { |
5132 | char *title; |
5133 | |
5134 | dbgPrintf |
5135 | ("This is GRUB2, default title is embeded in menuentry\n"); |
5136 | line = getLineByType(LT_MENUENTRY, entry->lines); |
5137 | if (!line) |
5138 | return 0; |
5139 | title = grub2ExtractTitle(line); |
5140 | if (title) |
5141 | printf("%s\n", title); |
5142 | } |
5143 | return 0; |
5144 | |
5145 | } else if (displayDefaultIndex) { |
5146 | if (config->defaultImage == -1) |
5147 | return 0; |
5148 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5149 | cfi->defaultIsSaved) |
5150 | config->defaultImage = 0; |
5151 | printf("%i\n", config->defaultImage); |
5152 | return 0; |
5153 | |
5154 | } else if (kernelInfo) |
5155 | return displayInfo(config, kernelInfo, bootPrefix); |
5156 | |
5157 | if (copyDefault) { |
5158 | template = findTemplate(config, bootPrefix, NULL, 0, flags); |
5159 | if (!template) |
5160 | return 1; |
5161 | } |
5162 | |
5163 | markRemovedImage(config, removeKernelPath, bootPrefix); |
5164 | markRemovedImage(config, removeMBKernel, bootPrefix); |
5165 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, |
5166 | makeDefault, bootPrefix, flags, defaultIndex); |
5167 | setFallbackImage(config, newKernelPath != NULL); |
5168 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, |
5169 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) |
5170 | return 1; |
5171 | if (updateKernelPath && newKernelInitrd) { |
5172 | if (newMBKernel) { |
5173 | if (addMBInitrd(config, newMBKernel, updateKernelPath, |
5174 | bootPrefix, newKernelInitrd, |
5175 | newKernelTitle)) |
5176 | return 1; |
5177 | } else { |
5178 | if (updateInitrd(config, updateKernelPath, bootPrefix, |
5179 | newKernelInitrd, newKernelTitle)) |
5180 | return 1; |
5181 | } |
5182 | } |
5183 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
5184 | newKernelTitle, newKernelArgs, newKernelInitrd, |
5185 | (const char **)extraInitrds, extraInitrdCount, |
5186 | newMBKernel, newMBKernelArgs, newDevTreePath)) |
5187 | return 1; |
5188 | |
5189 | if (numEntries(config) == 0) { |
5190 | fprintf(stderr, |
5191 | _("grubby: doing this would leave no kernel entries. " |
5192 | "Not writing out new config.\n")); |
5193 | return 1; |
5194 | } |
5195 | |
5196 | if (!outputFile) |
5197 | outputFile = (char *)grubConfig; |
5198 | |
5199 | return writeConfig(config, outputFile, bootPrefix); |
5200 | } |