Contents of /trunk/grubby/grubby.c
Parent Directory | Revision Log
Revision 3019 -
(show annotations)
(download)
Tue Jun 27 14:38:16 2017 UTC (7 years, 3 months ago) by niro
File MIME type: text/plain
File size: 130994 byte(s)
Tue Jun 27 14:38:16 2017 UTC (7 years, 3 months ago) by niro
File MIME type: text/plain
File size: 130994 byte(s)
Track configuration modifications
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_UNIDENTIFIED = 0, |
79 | LT_WHITESPACE = 1 << 0, |
80 | LT_TITLE = 1 << 1, |
81 | LT_KERNEL = 1 << 2, |
82 | LT_INITRD = 1 << 3, |
83 | LT_HYPER = 1 << 4, |
84 | LT_DEFAULT = 1 << 5, |
85 | LT_MBMODULE = 1 << 6, |
86 | LT_ROOT = 1 << 7, |
87 | LT_FALLBACK = 1 << 8, |
88 | LT_KERNELARGS = 1 << 9, |
89 | LT_BOOT = 1 << 10, |
90 | LT_BOOTROOT = 1 << 11, |
91 | LT_LBA = 1 << 12, |
92 | LT_OTHER = 1 << 13, |
93 | LT_GENERIC = 1 << 14, |
94 | LT_ECHO = 1 << 16, |
95 | LT_MENUENTRY = 1 << 17, |
96 | LT_ENTRY_END = 1 << 18, |
97 | LT_SET_VARIABLE = 1 << 19, |
98 | LT_KERNEL_EFI = 1 << 20, |
99 | LT_INITRD_EFI = 1 << 21, |
100 | LT_KERNEL_16 = 1 << 22, |
101 | LT_INITRD_16 = 1 << 23, |
102 | LT_DEVTREE = 1 << 24, |
103 | LT_UNKNOWN = 1 << 25, |
104 | }; |
105 | |
106 | struct singleLine { |
107 | char *indent; |
108 | int numElements; |
109 | struct lineElement *elements; |
110 | struct singleLine *next; |
111 | enum lineType_e type; |
112 | }; |
113 | |
114 | struct singleEntry { |
115 | struct singleLine *lines; |
116 | int skip; |
117 | int multiboot; |
118 | struct singleEntry *next; |
119 | }; |
120 | |
121 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) |
122 | |
123 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ |
124 | |
125 | /* These defines are (only) used in addNewKernel() */ |
126 | #define NEED_KERNEL (1 << 0) |
127 | #define NEED_INITRD (1 << 1) |
128 | #define NEED_TITLE (1 << 2) |
129 | #define NEED_ARGS (1 << 3) |
130 | #define NEED_MB (1 << 4) |
131 | #define NEED_END (1 << 5) |
132 | #define NEED_DEVTREE (1 << 6) |
133 | |
134 | #define MAIN_DEFAULT (1 << 0) |
135 | #define FIRST_ENTRY_INDEX 0 /* boot entry index value begin and increment |
136 | from this initial value */ |
137 | #define NO_DEFAULT_ENTRY -1 /* indicates that no specific default boot |
138 | entry was set or currently exists */ |
139 | #define DEFAULT_SAVED -2 |
140 | #define DEFAULT_SAVED_GRUB2 -3 |
141 | |
142 | struct keywordTypes { |
143 | char *key; |
144 | enum lineType_e type; |
145 | char nextChar; |
146 | char separatorChar; |
147 | }; |
148 | |
149 | struct configFileInfo; |
150 | |
151 | typedef const char *(*findConfigFunc) (struct configFileInfo *); |
152 | typedef const int (*writeLineFunc) (struct configFileInfo *, |
153 | struct singleLine * line); |
154 | typedef char *(*getEnvFunc) (struct configFileInfo *, char *name); |
155 | typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value); |
156 | |
157 | struct configFileInfo { |
158 | char *defaultConfig; |
159 | findConfigFunc findConfig; |
160 | writeLineFunc writeLine; |
161 | getEnvFunc getEnv; |
162 | setEnvFunc setEnv; |
163 | struct keywordTypes *keywords; |
164 | int caseInsensitive; |
165 | int defaultIsIndex; |
166 | int defaultIsVariable; |
167 | int defaultSupportSaved; |
168 | int defaultIsSaved; |
169 | int defaultIsUnquoted; |
170 | enum lineType_e entryStart; |
171 | enum lineType_e entryEnd; |
172 | int needsBootPrefix; |
173 | int argsInQuotes; |
174 | int maxTitleLength; |
175 | int titleBracketed; |
176 | int titlePosition; |
177 | int mbHyperFirst; |
178 | int mbInitRdIsModule; |
179 | int mbConcatArgs; |
180 | int mbAllowExtraInitRds; |
181 | char *envFile; |
182 | }; |
183 | |
184 | struct keywordTypes grubKeywords[] = { |
185 | {"title", LT_TITLE, ' '}, |
186 | {"root", LT_BOOTROOT, ' '}, |
187 | {"default", LT_DEFAULT, ' '}, |
188 | {"fallback", LT_FALLBACK, ' '}, |
189 | {"kernel", LT_KERNEL, ' '}, |
190 | {"initrd", LT_INITRD, ' ', ' '}, |
191 | {"module", LT_MBMODULE, ' '}, |
192 | {"kernel", LT_HYPER, ' '}, |
193 | {NULL, 0, 0}, |
194 | }; |
195 | |
196 | const char *grubFindConfig(struct configFileInfo *cfi) |
197 | { |
198 | static const char *configFiles[] = { |
199 | "/boot/grub/grub.conf", |
200 | "/boot/grub/menu.lst", |
201 | "/etc/grub.conf", |
202 | NULL |
203 | }; |
204 | static int i = -1; |
205 | |
206 | if (i == -1) { |
207 | for (i = 0; configFiles[i] != NULL; i++) { |
208 | dbgPrintf("Checking \"%s\": ", configFiles[i]); |
209 | if (!access(configFiles[i], R_OK)) { |
210 | dbgPrintf("found\n"); |
211 | return configFiles[i]; |
212 | } |
213 | dbgPrintf("not found\n"); |
214 | } |
215 | } |
216 | return configFiles[i]; |
217 | } |
218 | |
219 | struct configFileInfo grubConfigType = { |
220 | .findConfig = grubFindConfig, |
221 | .keywords = grubKeywords, |
222 | .defaultIsIndex = 1, |
223 | .defaultSupportSaved = 1, |
224 | .entryStart = LT_TITLE, |
225 | .needsBootPrefix = 1, |
226 | .mbHyperFirst = 1, |
227 | .mbInitRdIsModule = 1, |
228 | .mbAllowExtraInitRds = 1, |
229 | .titlePosition = 1, |
230 | }; |
231 | |
232 | struct keywordTypes grub2Keywords[] = { |
233 | {"menuentry", LT_MENUENTRY, ' '}, |
234 | {"}", LT_ENTRY_END, ' '}, |
235 | {"echo", LT_ECHO, ' '}, |
236 | {"set", LT_SET_VARIABLE, ' ', '='}, |
237 | {"root", LT_BOOTROOT, ' '}, |
238 | {"default", LT_DEFAULT, ' '}, |
239 | {"fallback", LT_FALLBACK, ' '}, |
240 | {"linux", LT_KERNEL, ' '}, |
241 | {"linuxefi", LT_KERNEL_EFI, ' '}, |
242 | {"linux16", LT_KERNEL_16, ' '}, |
243 | {"initrd", LT_INITRD, ' ', ' '}, |
244 | {"initrdefi", LT_INITRD_EFI, ' ', ' '}, |
245 | {"initrd16", LT_INITRD_16, ' ', ' '}, |
246 | {"module", LT_MBMODULE, ' '}, |
247 | {"kernel", LT_HYPER, ' '}, |
248 | {"devicetree", LT_DEVTREE, ' '}, |
249 | {NULL, 0, 0}, |
250 | }; |
251 | |
252 | const char *grub2FindConfig(struct configFileInfo *cfi) |
253 | { |
254 | static const char *configFiles[] = { |
255 | "/boot/grub/grub-efi.cfg", |
256 | "/boot/grub/grub.cfg", |
257 | "/etc/grub2-efi.cfg", |
258 | "/etc/grub2.cfg", |
259 | "/boot/grub2/grub.cfg", |
260 | "/boot/grub2-efi/grub.cfg", |
261 | NULL |
262 | }; |
263 | static int i = -1; |
264 | static const char *grub_cfg = "/boot/grub/grub.cfg"; |
265 | int rc = -1; |
266 | |
267 | if (i == -1) { |
268 | for (i = 0; configFiles[i] != NULL; i++) { |
269 | dbgPrintf("Checking \"%s\": ", configFiles[i]); |
270 | if ((rc = access(configFiles[i], R_OK))) { |
271 | if (errno == EACCES) { |
272 | printf |
273 | ("Unable to access bootloader configuration file " |
274 | "\"%s\": %m\n", configFiles[i]); |
275 | exit(1); |
276 | } |
277 | continue; |
278 | } else { |
279 | dbgPrintf("found\n"); |
280 | return configFiles[i]; |
281 | } |
282 | } |
283 | } |
284 | |
285 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory |
286 | * that isn't in grub1, and if it exists, return the config file path |
287 | * that they use. */ |
288 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { |
289 | dbgPrintf("found\n"); |
290 | return grub_cfg; |
291 | } |
292 | |
293 | dbgPrintf("not found\n"); |
294 | return configFiles[i]; |
295 | } |
296 | |
297 | /* kind of hacky. It'll give the first 1024 bytes, ish. */ |
298 | static char *grub2GetEnv(struct configFileInfo *info, char *name) |
299 | { |
300 | static char buf[1025]; |
301 | char *s = NULL; |
302 | char *ret = NULL; |
303 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
304 | int rc = |
305 | asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name); |
306 | |
307 | if (rc < 0) |
308 | return NULL; |
309 | |
310 | FILE *f = popen(s, "r"); |
311 | if (!f) |
312 | goto out; |
313 | |
314 | memset(buf, '\0', sizeof(buf)); |
315 | ret = fgets(buf, 1024, f); |
316 | pclose(f); |
317 | |
318 | if (ret) { |
319 | ret += strlen(name) + 1; |
320 | ret[strlen(ret) - 1] = '\0'; |
321 | } |
322 | dbgPrintf("grub2GetEnv(%s): %s\n", name, ret); |
323 | out: |
324 | free(s); |
325 | return ret; |
326 | } |
327 | |
328 | static int sPopCount(const char *s, const char *c) |
329 | { |
330 | int ret = 0; |
331 | if (!s) |
332 | return -1; |
333 | for (int i = 0; s[i] != '\0'; i++) |
334 | for (int j = 0; c[j] != '\0'; j++) |
335 | if (s[i] == c[j]) |
336 | ret++; |
337 | return ret; |
338 | } |
339 | |
340 | static char *shellEscape(const char *s) |
341 | { |
342 | int l = strlen(s) + sPopCount(s, "'") * 2; |
343 | |
344 | char *ret = calloc(l + 1, sizeof(*ret)); |
345 | if (!ret) |
346 | return NULL; |
347 | for (int i = 0, j = 0; s[i] != '\0'; i++, j++) { |
348 | if (s[i] == '\'') |
349 | ret[j++] = '\\'; |
350 | ret[j] = s[i]; |
351 | } |
352 | return ret; |
353 | } |
354 | |
355 | static void unquote(char *s) |
356 | { |
357 | int l = strlen(s); |
358 | |
359 | if ((s[l - 1] == '\'' && s[0] == '\'') |
360 | || (s[l - 1] == '"' && s[0] == '"')) { |
361 | memmove(s, s + 1, l - 2); |
362 | s[l - 2] = '\0'; |
363 | } |
364 | } |
365 | |
366 | static int grub2SetEnv(struct configFileInfo *info, char *name, char *value) |
367 | { |
368 | char *s = NULL; |
369 | int rc = 0; |
370 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
371 | |
372 | unquote(value); |
373 | value = shellEscape(value); |
374 | if (!value) |
375 | return -1; |
376 | |
377 | rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value); |
378 | free(value); |
379 | if (rc < 0) |
380 | return -1; |
381 | |
382 | dbgPrintf("grub2SetEnv(%s): %s\n", name, s); |
383 | rc = system(s); |
384 | free(s); |
385 | return rc; |
386 | } |
387 | |
388 | /* this is a gigantic hack to avoid clobbering grub2 variables... */ |
389 | static int is_special_grub2_variable(const char *name) |
390 | { |
391 | if (!strcmp(name, "\"${next_entry}\"")) |
392 | return 1; |
393 | if (!strcmp(name, "\"${prev_saved_entry}\"")) |
394 | return 1; |
395 | return 0; |
396 | } |
397 | |
398 | int sizeOfSingleLine(struct singleLine *line) |
399 | { |
400 | int count = 0; |
401 | |
402 | for (int i = 0; i < line->numElements; i++) { |
403 | int indentSize = 0; |
404 | |
405 | count = count + strlen(line->elements[i].item); |
406 | |
407 | indentSize = strlen(line->elements[i].indent); |
408 | if (indentSize > 0) |
409 | count = count + indentSize; |
410 | else |
411 | /* be extra safe and add room for whitespaces */ |
412 | count = count + 1; |
413 | } |
414 | |
415 | /* room for trailing terminator */ |
416 | count = count + 1; |
417 | |
418 | return count; |
419 | } |
420 | |
421 | static int isquote(char q) |
422 | { |
423 | if (q == '\'' || q == '\"') |
424 | return 1; |
425 | return 0; |
426 | } |
427 | |
428 | static int iskernel(enum lineType_e type) |
429 | { |
430 | return (type == LT_KERNEL || type == LT_KERNEL_EFI |
431 | || type == LT_KERNEL_16); |
432 | } |
433 | |
434 | static int isinitrd(enum lineType_e type) |
435 | { |
436 | return (type == LT_INITRD || type == LT_INITRD_EFI |
437 | || type == LT_INITRD_16); |
438 | } |
439 | |
440 | char *grub2ExtractTitle(struct singleLine *line) |
441 | { |
442 | char *current; |
443 | char *current_indent; |
444 | int current_len; |
445 | int current_indent_len; |
446 | int i; |
447 | |
448 | /* bail out if line does not start with menuentry */ |
449 | if (strcmp(line->elements[0].item, "menuentry")) |
450 | return NULL; |
451 | |
452 | i = 1; |
453 | current = line->elements[i].item; |
454 | current_len = strlen(current); |
455 | |
456 | /* if second word is quoted, strip the quotes and return single word */ |
457 | if (isquote(*current) && isquote(current[current_len - 1])) { |
458 | char *tmp; |
459 | |
460 | tmp = strdup(current + 1); |
461 | if (!tmp) |
462 | return NULL; |
463 | tmp[strlen(tmp) - 1] = '\0'; |
464 | return tmp; |
465 | } |
466 | |
467 | /* if no quotes, return second word verbatim */ |
468 | if (!isquote(*current)) |
469 | return current; |
470 | |
471 | /* second element start with a quote, so we have to find the element |
472 | * whose last character is also quote (assuming it's the closing one) */ |
473 | int resultMaxSize; |
474 | char *result; |
475 | /* need to ensure that ' does not match " as we search */ |
476 | char quote_char = *current; |
477 | |
478 | resultMaxSize = sizeOfSingleLine(line); |
479 | result = malloc(resultMaxSize); |
480 | snprintf(result, resultMaxSize, "%s", ++current); |
481 | |
482 | i++; |
483 | for (; i < line->numElements; ++i) { |
484 | current = line->elements[i].item; |
485 | current_len = strlen(current); |
486 | current_indent = line->elements[i].indent; |
487 | current_indent_len = strlen(current_indent); |
488 | |
489 | strncat(result, current_indent, current_indent_len); |
490 | if (current[current_len - 1] != quote_char) { |
491 | strncat(result, current, current_len); |
492 | } else { |
493 | strncat(result, current, current_len - 1); |
494 | break; |
495 | } |
496 | } |
497 | return result; |
498 | } |
499 | |
500 | struct configFileInfo grub2ConfigType = { |
501 | .findConfig = grub2FindConfig, |
502 | .getEnv = grub2GetEnv, |
503 | .setEnv = grub2SetEnv, |
504 | .keywords = grub2Keywords, |
505 | .defaultIsIndex = 1, |
506 | .defaultSupportSaved = 1, |
507 | .defaultIsVariable = 1, |
508 | .entryStart = LT_MENUENTRY, |
509 | .entryEnd = LT_ENTRY_END, |
510 | .titlePosition = 1, |
511 | .needsBootPrefix = 1, |
512 | .mbHyperFirst = 1, |
513 | .mbInitRdIsModule = 1, |
514 | .mbAllowExtraInitRds = 1, |
515 | }; |
516 | |
517 | struct keywordTypes yabootKeywords[] = { |
518 | {"label", LT_TITLE, '='}, |
519 | {"root", LT_ROOT, '='}, |
520 | {"default", LT_DEFAULT, '='}, |
521 | {"image", LT_KERNEL, '='}, |
522 | {"bsd", LT_GENERIC, '='}, |
523 | {"macos", LT_GENERIC, '='}, |
524 | {"macosx", LT_GENERIC, '='}, |
525 | {"magicboot", LT_GENERIC, '='}, |
526 | {"darwin", LT_GENERIC, '='}, |
527 | {"timeout", LT_GENERIC, '='}, |
528 | {"install", LT_GENERIC, '='}, |
529 | {"fstype", LT_GENERIC, '='}, |
530 | {"hfstype", LT_GENERIC, '='}, |
531 | {"delay", LT_GENERIC, '='}, |
532 | {"defaultos", LT_GENERIC, '='}, |
533 | {"init-message", LT_GENERIC, '='}, |
534 | {"enablecdboot", LT_GENERIC, ' '}, |
535 | {"enableofboot", LT_GENERIC, ' '}, |
536 | {"enablenetboot", LT_GENERIC, ' '}, |
537 | {"nonvram", LT_GENERIC, ' '}, |
538 | {"hide", LT_GENERIC, ' '}, |
539 | {"protect", LT_GENERIC, ' '}, |
540 | {"nobless", LT_GENERIC, ' '}, |
541 | {"nonvram", LT_GENERIC, ' '}, |
542 | {"brokenosx", LT_GENERIC, ' '}, |
543 | {"usemount", LT_GENERIC, ' '}, |
544 | {"mntpoint", LT_GENERIC, '='}, |
545 | {"partition", LT_GENERIC, '='}, |
546 | {"device", LT_GENERIC, '='}, |
547 | {"fstype", LT_GENERIC, '='}, |
548 | {"initrd", LT_INITRD, '=', ';'}, |
549 | {"append", LT_KERNELARGS, '='}, |
550 | {"boot", LT_BOOT, '='}, |
551 | {"lba", LT_LBA, ' '}, |
552 | {NULL, 0, 0}, |
553 | }; |
554 | |
555 | struct keywordTypes liloKeywords[] = { |
556 | {"label", LT_TITLE, '='}, |
557 | {"root", LT_ROOT, '='}, |
558 | {"default", LT_DEFAULT, '='}, |
559 | {"image", LT_KERNEL, '='}, |
560 | {"other", LT_OTHER, '='}, |
561 | {"initrd", LT_INITRD, '='}, |
562 | {"append", LT_KERNELARGS, '='}, |
563 | {"boot", LT_BOOT, '='}, |
564 | {"lba", LT_LBA, ' '}, |
565 | {NULL, 0, 0}, |
566 | }; |
567 | |
568 | struct keywordTypes eliloKeywords[] = { |
569 | {"label", LT_TITLE, '='}, |
570 | {"root", LT_ROOT, '='}, |
571 | {"default", LT_DEFAULT, '='}, |
572 | {"image", LT_KERNEL, '='}, |
573 | {"initrd", LT_INITRD, '='}, |
574 | {"append", LT_KERNELARGS, '='}, |
575 | {"vmm", LT_HYPER, '='}, |
576 | {NULL, 0, 0}, |
577 | }; |
578 | |
579 | struct keywordTypes siloKeywords[] = { |
580 | {"label", LT_TITLE, '='}, |
581 | {"root", LT_ROOT, '='}, |
582 | {"default", LT_DEFAULT, '='}, |
583 | {"image", LT_KERNEL, '='}, |
584 | {"other", LT_OTHER, '='}, |
585 | {"initrd", LT_INITRD, '='}, |
586 | {"append", LT_KERNELARGS, '='}, |
587 | {"boot", LT_BOOT, '='}, |
588 | {NULL, 0, 0}, |
589 | }; |
590 | |
591 | struct keywordTypes ziplKeywords[] = { |
592 | {"target", LT_BOOTROOT, '='}, |
593 | {"image", LT_KERNEL, '='}, |
594 | {"ramdisk", LT_INITRD, '='}, |
595 | {"parameters", LT_KERNELARGS, '='}, |
596 | {"default", LT_DEFAULT, '='}, |
597 | {NULL, 0, 0}, |
598 | }; |
599 | |
600 | struct keywordTypes extlinuxKeywords[] = { |
601 | {"label", LT_TITLE, ' '}, |
602 | {"root", LT_ROOT, ' '}, |
603 | {"default", LT_DEFAULT, ' '}, |
604 | {"kernel", LT_KERNEL, ' '}, |
605 | {"initrd", LT_INITRD, ' ', ','}, |
606 | {"append", LT_KERNELARGS, ' '}, |
607 | {"prompt", LT_UNKNOWN, ' '}, |
608 | {"fdt", LT_DEVTREE, ' '}, |
609 | {"fdtdir", LT_DEVTREE, ' '}, |
610 | {NULL, 0, 0}, |
611 | }; |
612 | |
613 | int useextlinuxmenu; |
614 | struct configFileInfo eliloConfigType = { |
615 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
616 | .keywords = eliloKeywords, |
617 | .entryStart = LT_KERNEL, |
618 | .needsBootPrefix = 1, |
619 | .argsInQuotes = 1, |
620 | .mbConcatArgs = 1, |
621 | .titlePosition = 1, |
622 | }; |
623 | |
624 | struct configFileInfo liloConfigType = { |
625 | .defaultConfig = "/etc/lilo.conf", |
626 | .keywords = liloKeywords, |
627 | .entryStart = LT_KERNEL, |
628 | .argsInQuotes = 1, |
629 | .maxTitleLength = 15, |
630 | .titlePosition = 1, |
631 | }; |
632 | |
633 | struct configFileInfo yabootConfigType = { |
634 | .defaultConfig = "/etc/yaboot.conf", |
635 | .keywords = yabootKeywords, |
636 | .entryStart = LT_KERNEL, |
637 | .needsBootPrefix = 1, |
638 | .argsInQuotes = 1, |
639 | .maxTitleLength = 15, |
640 | .mbAllowExtraInitRds = 1, |
641 | .titlePosition = 1, |
642 | }; |
643 | |
644 | struct configFileInfo siloConfigType = { |
645 | .defaultConfig = "/etc/silo.conf", |
646 | .keywords = siloKeywords, |
647 | .entryStart = LT_KERNEL, |
648 | .needsBootPrefix = 1, |
649 | .argsInQuotes = 1, |
650 | .maxTitleLength = 15, |
651 | .titlePosition = 1, |
652 | }; |
653 | |
654 | struct configFileInfo ziplConfigType = { |
655 | .defaultConfig = "/etc/zipl.conf", |
656 | .keywords = ziplKeywords, |
657 | .entryStart = LT_TITLE, |
658 | .argsInQuotes = 1, |
659 | .titleBracketed = 1, |
660 | }; |
661 | |
662 | struct configFileInfo extlinuxConfigType = { |
663 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
664 | .keywords = extlinuxKeywords, |
665 | .caseInsensitive = 1, |
666 | .entryStart = LT_TITLE, |
667 | .needsBootPrefix = 1, |
668 | .maxTitleLength = 255, |
669 | .mbAllowExtraInitRds = 1, |
670 | .defaultIsUnquoted = 1, |
671 | .titlePosition = 1, |
672 | }; |
673 | |
674 | struct grubConfig { |
675 | struct singleLine *theLines; |
676 | struct singleEntry *entries; |
677 | char *primaryIndent; |
678 | char *secondaryIndent; |
679 | int defaultImage; /* -1 if none specified -- this value is |
680 | * written out, overriding original */ |
681 | int fallbackImage; /* just like defaultImage */ |
682 | int flags; |
683 | struct configFileInfo *cfi; |
684 | int isModified; /* assumes only one entry added |
685 | per invocation of grubby */ |
686 | }; |
687 | |
688 | blkid_cache blkid; |
689 | |
690 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index); |
691 | struct singleEntry *findEntryByPath(struct grubConfig *cfg, |
692 | const char *path, const char *prefix, |
693 | int *index); |
694 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
695 | int *index); |
696 | static int readFile(int fd, char **bufPtr); |
697 | static void lineInit(struct singleLine *line); |
698 | struct singleLine *lineDup(struct singleLine *line); |
699 | static void lineFree(struct singleLine *line); |
700 | static int lineWrite(FILE * out, struct singleLine *line, |
701 | struct configFileInfo *cfi); |
702 | static int getNextLine(char **bufPtr, struct singleLine *line, |
703 | struct configFileInfo *cfi); |
704 | static char *getRootSpecifier(char *str); |
705 | static void requote(struct singleLine *line, struct configFileInfo *cfi); |
706 | static void insertElement(struct singleLine *line, |
707 | const char *item, int insertHere, |
708 | struct configFileInfo *cfi); |
709 | static void removeElement(struct singleLine *line, int removeHere); |
710 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
711 | struct configFileInfo *cfi); |
712 | static enum lineType_e getTypeByKeyword(char *keyword, |
713 | struct configFileInfo *cfi); |
714 | static struct singleLine *getLineByType(enum lineType_e type, |
715 | struct singleLine *line); |
716 | static int checkForExtLinux(struct grubConfig *config); |
717 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
718 | struct singleLine *tmplLine, |
719 | struct singleLine *prevLine, |
720 | const char *val, struct configFileInfo *cfi); |
721 | struct singleLine *addLine(struct singleEntry *entry, |
722 | struct configFileInfo *cfi, |
723 | enum lineType_e type, char *defaultIndent, |
724 | const char *val); |
725 | |
726 | static char *sdupprintf(const char *format, ...) |
727 | #ifdef __GNUC__ |
728 | __attribute__ ((format(printf, 1, 2))); |
729 | #else |
730 | ; |
731 | #endif |
732 | |
733 | static char *sdupprintf(const char *format, ...) |
734 | { |
735 | char *buf = NULL; |
736 | char c; |
737 | va_list args; |
738 | size_t size = 0; |
739 | va_start(args, format); |
740 | |
741 | /* XXX requires C99 vsnprintf behavior */ |
742 | size = vsnprintf(&c, 1, format, args) + 1; |
743 | if (size == -1) { |
744 | printf("ERROR: vsnprintf behavior is not C99\n"); |
745 | abort(); |
746 | } |
747 | |
748 | va_end(args); |
749 | va_start(args, format); |
750 | |
751 | buf = malloc(size); |
752 | if (buf == NULL) |
753 | return NULL; |
754 | vsnprintf(buf, size, format, args); |
755 | va_end(args); |
756 | |
757 | return buf; |
758 | } |
759 | |
760 | static inline int |
761 | kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive) |
762 | { |
763 | int kwl = strlen(kw->key); |
764 | int ll = strlen(label); |
765 | int rc; |
766 | int (*snc)(const char *s1, const char *s2, size_t n) = |
767 | case_insensitive ? strncasecmp : strncmp; |
768 | int (*sc)(const char *s1, const char *s2) = |
769 | case_insensitive ? strcasecmp : strcmp; |
770 | |
771 | rc = snc(kw->key, label, kwl); |
772 | if (rc) |
773 | return rc; |
774 | |
775 | for (int i = kwl; i < ll; i++) { |
776 | if (isspace(label[i])) |
777 | return 0; |
778 | if (kw->separatorChar && label[i] == kw->separatorChar) |
779 | return 0; |
780 | else if (kw->nextChar && label[i] == kw->nextChar) |
781 | return 0; |
782 | return sc(kw->key+kwl, label+kwl); |
783 | } |
784 | return 0; |
785 | } |
786 | |
787 | static enum lineType_e preferredLineType(enum lineType_e type, |
788 | struct configFileInfo *cfi) |
789 | { |
790 | if (isEfi && cfi == &grub2ConfigType) { |
791 | switch (type) { |
792 | case LT_KERNEL: |
793 | return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI; |
794 | case LT_INITRD: |
795 | return isEfiOnly ? LT_INITRD : LT_INITRD_EFI; |
796 | default: |
797 | return type; |
798 | } |
799 | #if defined(__i386__) || defined(__x86_64__) |
800 | } else if (cfi == &grub2ConfigType) { |
801 | switch (type) { |
802 | case LT_KERNEL: |
803 | return LT_KERNEL_16; |
804 | case LT_INITRD: |
805 | return LT_INITRD_16; |
806 | default: |
807 | return type; |
808 | } |
809 | #endif |
810 | } |
811 | return type; |
812 | } |
813 | |
814 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
815 | struct configFileInfo *cfi) |
816 | { |
817 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
818 | if (kw->type == type) |
819 | return kw; |
820 | } |
821 | return NULL; |
822 | } |
823 | |
824 | static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi) |
825 | { |
826 | struct keywordTypes *kt = getKeywordByType(type, cfi); |
827 | if (kt) |
828 | return kt->key; |
829 | return "unknown"; |
830 | } |
831 | |
832 | static char *getpathbyspec(char *device) |
833 | { |
834 | if (!blkid) |
835 | blkid_get_cache(&blkid, NULL); |
836 | |
837 | return blkid_get_devname(blkid, device, NULL); |
838 | } |
839 | |
840 | static char *getuuidbydev(char *device) |
841 | { |
842 | if (!blkid) |
843 | blkid_get_cache(&blkid, NULL); |
844 | |
845 | return blkid_get_tag_value(blkid, "UUID", device); |
846 | } |
847 | |
848 | static enum lineType_e getTypeByKeyword(char *keyword, |
849 | struct configFileInfo *cfi) |
850 | { |
851 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
852 | if (!kwcmp(kw, keyword, cfi->caseInsensitive)) |
853 | return kw->type; |
854 | } |
855 | return LT_UNKNOWN; |
856 | } |
857 | |
858 | static struct singleLine *getLineByType(enum lineType_e type, |
859 | struct singleLine *line) |
860 | { |
861 | dbgPrintf("getLineByType(%d): ", type); |
862 | for (; line; line = line->next) { |
863 | dbgPrintf("%d:%s ", line->type, |
864 | line->numElements ? line->elements[0]. |
865 | item : "(empty)"); |
866 | if (line->type & type) |
867 | break; |
868 | } |
869 | dbgPrintf(line ? "\n" : " (failed)\n"); |
870 | return line; |
871 | } |
872 | |
873 | static int isBracketedTitle(struct singleLine *line) |
874 | { |
875 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
876 | int len = strlen(line->elements[0].item); |
877 | if (*(line->elements[0].item + len - 1) == ']') { |
878 | /* FIXME: this is a hack... */ |
879 | if (strcmp(line->elements[0].item, "[defaultboot]")) { |
880 | return 1; |
881 | } |
882 | } |
883 | } |
884 | return 0; |
885 | } |
886 | |
887 | static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi) |
888 | { |
889 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
890 | (cfi->titleBracketed && isBracketedTitle(line)); |
891 | } |
892 | |
893 | /* extract the title from within brackets (for zipl) */ |
894 | static char *extractTitle(struct grubConfig *cfg, struct singleLine *line) |
895 | { |
896 | /* bracketed title... let's extract it */ |
897 | char *title = NULL; |
898 | if (line->type == LT_TITLE) { |
899 | char *tmp = line->elements[cfg->cfi->titlePosition].item; |
900 | if (cfg->cfi->titleBracketed) { |
901 | tmp++; |
902 | title = strdup(tmp); |
903 | *(title + strlen(title) - 1) = '\0'; |
904 | } else { |
905 | title = strdup(tmp); |
906 | } |
907 | } else if (line->type == LT_MENUENTRY) |
908 | title = strdup(line->elements[1].item); |
909 | else |
910 | return NULL; |
911 | return title; |
912 | } |
913 | |
914 | static int readFile(int fd, char **bufPtr) |
915 | { |
916 | int alloced = 0, size = 0, i = 0; |
917 | char *buf = NULL; |
918 | |
919 | do { |
920 | size += i; |
921 | if ((size + 1024) > alloced) { |
922 | alloced += 4096; |
923 | buf = realloc(buf, alloced + 1); |
924 | } |
925 | } while ((i = read(fd, buf + size, 1024)) > 0); |
926 | |
927 | if (i < 0) { |
928 | fprintf(stderr, _("error reading input: %s\n"), |
929 | strerror(errno)); |
930 | free(buf); |
931 | return 1; |
932 | } |
933 | |
934 | buf = realloc(buf, size + 2); |
935 | if (size == 0) |
936 | buf[size++] = '\n'; |
937 | else if (buf[size - 1] != '\n') |
938 | buf[size++] = '\n'; |
939 | buf[size] = '\0'; |
940 | |
941 | *bufPtr = buf; |
942 | |
943 | return 0; |
944 | } |
945 | |
946 | static void lineInit(struct singleLine *line) |
947 | { |
948 | line->type = LT_UNIDENTIFIED; |
949 | line->indent = NULL; |
950 | line->elements = NULL; |
951 | line->numElements = 0; |
952 | line->next = NULL; |
953 | } |
954 | |
955 | struct singleLine *lineDup(struct singleLine *line) |
956 | { |
957 | struct singleLine *newLine = malloc(sizeof(*newLine)); |
958 | |
959 | newLine->indent = strdup(line->indent); |
960 | newLine->next = NULL; |
961 | newLine->type = line->type; |
962 | newLine->numElements = line->numElements; |
963 | newLine->elements = malloc(sizeof(*newLine->elements) * |
964 | newLine->numElements); |
965 | |
966 | for (int i = 0; i < newLine->numElements; i++) { |
967 | newLine->elements[i].indent = strdup(line->elements[i].indent); |
968 | newLine->elements[i].item = strdup(line->elements[i].item); |
969 | } |
970 | |
971 | return newLine; |
972 | } |
973 | |
974 | static void lineFree(struct singleLine *line) |
975 | { |
976 | if (line->indent) |
977 | free(line->indent); |
978 | |
979 | for (int i = 0; i < line->numElements; i++) { |
980 | free(line->elements[i].item); |
981 | free(line->elements[i].indent); |
982 | } |
983 | |
984 | if (line->elements) |
985 | free(line->elements); |
986 | lineInit(line); |
987 | } |
988 | |
989 | static int lineWrite(FILE * out, struct singleLine *line, |
990 | struct configFileInfo *cfi) |
991 | { |
992 | if (fprintf(out, "%s", line->indent) == -1) |
993 | return -1; |
994 | |
995 | for (int i = 0; i < line->numElements; i++) { |
996 | /* Need to handle this, because we strip the quotes from |
997 | * menuentry when read it. */ |
998 | if (line->type == LT_MENUENTRY && i == 1) { |
999 | if (!isquote(*line->elements[i].item)) { |
1000 | int substring = 0; |
1001 | /* If the line contains nested quotes, we did |
1002 | * not strip the "interna" quotes and we must |
1003 | * use the right quotes again when writing |
1004 | * the updated file. */ |
1005 | for (int j = i; j < line->numElements; j++) { |
1006 | if (strchr(line->elements[i].item, '\'') |
1007 | != NULL) { |
1008 | substring = 1; |
1009 | fprintf(out, "\"%s\"", |
1010 | line->elements[i].item); |
1011 | break; |
1012 | } |
1013 | } |
1014 | if (!substring) |
1015 | fprintf(out, "\'%s\'", |
1016 | line->elements[i].item); |
1017 | } else { |
1018 | fprintf(out, "%s", line->elements[i].item); |
1019 | } |
1020 | fprintf(out, "%s", line->elements[i].indent); |
1021 | |
1022 | continue; |
1023 | } |
1024 | |
1025 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1026 | if (fputc('"', out) == EOF) |
1027 | return -1; |
1028 | |
1029 | if (fprintf(out, "%s", line->elements[i].item) == -1) |
1030 | return -1; |
1031 | if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE) |
1032 | if (fprintf(out, "%s", line->elements[i].indent) == -1) |
1033 | return -1; |
1034 | } |
1035 | |
1036 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1037 | if (fputc('"', out) == EOF) |
1038 | return -1; |
1039 | |
1040 | if (fprintf(out, "\n") == -1) |
1041 | return -1; |
1042 | |
1043 | return 0; |
1044 | } |
1045 | |
1046 | /* we've guaranteed that the buffer ends w/ \n\0 */ |
1047 | static int getNextLine(char **bufPtr, struct singleLine *line, |
1048 | struct configFileInfo *cfi) |
1049 | { |
1050 | char *end; |
1051 | char *start = *bufPtr; |
1052 | char *chptr; |
1053 | int elementsAlloced = 0; |
1054 | struct lineElement *element; |
1055 | int first = 1; |
1056 | |
1057 | lineFree(line); |
1058 | |
1059 | end = strchr(start, '\n'); |
1060 | *end = '\0'; |
1061 | *bufPtr = end + 1; |
1062 | |
1063 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; |
1064 | |
1065 | line->indent = strndup(start, chptr - start); |
1066 | start = chptr; |
1067 | |
1068 | while (start < end) { |
1069 | /* we know !isspace(*start) */ |
1070 | |
1071 | if (elementsAlloced == line->numElements) { |
1072 | elementsAlloced += 5; |
1073 | line->elements = realloc(line->elements, |
1074 | sizeof(*line->elements) * |
1075 | elementsAlloced); |
1076 | } |
1077 | |
1078 | element = line->elements + line->numElements; |
1079 | |
1080 | chptr = start; |
1081 | while (*chptr && !isspace(*chptr)) { |
1082 | if (first && *chptr == '=') |
1083 | break; |
1084 | chptr++; |
1085 | } |
1086 | if (line->type == LT_UNIDENTIFIED) |
1087 | line->type = getTypeByKeyword(start, cfi); |
1088 | element->item = strndup(start, chptr - start); |
1089 | start = chptr; |
1090 | |
1091 | /* lilo actually accepts the pathological case of |
1092 | * append = " foo " */ |
1093 | if (*start == '=') |
1094 | chptr = start + 1; |
1095 | else |
1096 | chptr = start; |
1097 | |
1098 | do { |
1099 | for (; *chptr && isspace(*chptr); chptr++) ; |
1100 | if (*chptr == '=') |
1101 | chptr = chptr + 1; |
1102 | } while (isspace(*chptr)); |
1103 | |
1104 | element->indent = strndup(start, chptr - start); |
1105 | start = chptr; |
1106 | |
1107 | line->numElements++; |
1108 | first = 0; |
1109 | } |
1110 | |
1111 | if (!line->numElements) |
1112 | line->type = LT_WHITESPACE; |
1113 | else { |
1114 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
1115 | if (line->type == LT_UNKNOWN) { |
1116 | /* zipl does [title] instead of something reasonable |
1117 | * like all the other boot loaders. kind of ugly */ |
1118 | if (cfi->titleBracketed && isBracketedTitle(line)) { |
1119 | line->type = LT_TITLE; |
1120 | } |
1121 | |
1122 | /* this is awkward, but we need to be able to handle |
1123 | * keywords that begin with a # (specifically for |
1124 | * #boot in grub.conf), but still make comments lines |
1125 | * with no elements (everything stored in the indent |
1126 | */ |
1127 | if (*line->elements[0].item == '#') { |
1128 | char *fullLine; |
1129 | int len; |
1130 | |
1131 | len = strlen(line->indent); |
1132 | for (int i = 0; i < line->numElements; i++) |
1133 | len += strlen(line->elements[i].item) + |
1134 | strlen(line->elements[i].indent); |
1135 | |
1136 | fullLine = malloc(len + 1); |
1137 | strcpy(fullLine, line->indent); |
1138 | free(line->indent); |
1139 | line->indent = fullLine; |
1140 | |
1141 | for (int i = 0; i < line->numElements; i++) { |
1142 | strcat(fullLine, |
1143 | line->elements[i].item); |
1144 | strcat(fullLine, |
1145 | line->elements[i].indent); |
1146 | free(line->elements[i].item); |
1147 | free(line->elements[i].indent); |
1148 | } |
1149 | |
1150 | line->type = LT_WHITESPACE; |
1151 | line->numElements = 0; |
1152 | } |
1153 | } else if (line->type == LT_INITRD) { |
1154 | struct keywordTypes *kw; |
1155 | |
1156 | kw = getKeywordByType(line->type, cfi); |
1157 | |
1158 | /* space isn't the only separator, we need to split |
1159 | * elements up more |
1160 | */ |
1161 | if (!isspace(kw->separatorChar)) { |
1162 | char indent[2] = ""; |
1163 | indent[0] = kw->separatorChar; |
1164 | for (int i = 1; i < line->numElements; i++) { |
1165 | char *p; |
1166 | int numNewElements; |
1167 | |
1168 | numNewElements = 0; |
1169 | p = line->elements[i].item; |
1170 | while (*p != '\0') { |
1171 | if (*p == kw->separatorChar) |
1172 | numNewElements++; |
1173 | p++; |
1174 | } |
1175 | if (line->numElements + |
1176 | numNewElements >= elementsAlloced) { |
1177 | elementsAlloced += |
1178 | numNewElements + 5; |
1179 | line->elements = |
1180 | realloc(line->elements, |
1181 | sizeof(*line-> |
1182 | elements) * |
1183 | elementsAlloced); |
1184 | } |
1185 | |
1186 | for (int j = line->numElements; j > i; |
1187 | j--) { |
1188 | line->elements[j + |
1189 | numNewElements] = |
1190 | line->elements[j]; |
1191 | } |
1192 | line->numElements += numNewElements; |
1193 | |
1194 | p = line->elements[i].item; |
1195 | while (*p != '\0') { |
1196 | |
1197 | while (*p != kw->separatorChar |
1198 | && *p != '\0') |
1199 | p++; |
1200 | if (*p == '\0') { |
1201 | break; |
1202 | } |
1203 | |
1204 | line->elements[i + 1].indent = |
1205 | line->elements[i].indent; |
1206 | line->elements[i].indent = |
1207 | strdup(indent); |
1208 | *p++ = '\0'; |
1209 | i++; |
1210 | line->elements[i].item = |
1211 | strdup(p); |
1212 | } |
1213 | } |
1214 | } |
1215 | } else if (line->type == LT_SET_VARIABLE) { |
1216 | /* and if it's a "set blah=" we need to split it |
1217 | * yet a third way to avoid rhbz# XXX FIXME :/ |
1218 | */ |
1219 | char *eq; |
1220 | int l; |
1221 | int numElements = line->numElements; |
1222 | struct lineElement *newElements; |
1223 | eq = strchr(line->elements[1].item, '='); |
1224 | if (!eq) |
1225 | return 0; |
1226 | l = eq - line->elements[1].item; |
1227 | if (eq[1] != 0) |
1228 | numElements++; |
1229 | newElements = calloc(numElements,sizeof (*newElements)); |
1230 | memcpy(&newElements[0], &line->elements[0], |
1231 | sizeof (newElements[0])); |
1232 | newElements[1].item = |
1233 | strndup(line->elements[1].item, l); |
1234 | newElements[1].indent = "="; |
1235 | *(eq++) = '\0'; |
1236 | newElements[2].item = strdup(eq); |
1237 | free(line->elements[1].item); |
1238 | if (line->elements[1].indent) |
1239 | newElements[2].indent = line->elements[1].indent; |
1240 | for (int i = 2; i < line->numElements; i++) { |
1241 | newElements[i+1].item = line->elements[i].item; |
1242 | newElements[i+1].indent = |
1243 | line->elements[i].indent; |
1244 | } |
1245 | free(line->elements); |
1246 | line->elements = newElements; |
1247 | line->numElements = numElements; |
1248 | } |
1249 | } |
1250 | |
1251 | return 0; |
1252 | } |
1253 | |
1254 | static int isnumber(const char *s) |
1255 | { |
1256 | int i; |
1257 | for (i = 0; s[i] != '\0'; i++) |
1258 | if (s[i] < '0' || s[i] > '9') |
1259 | return 0; |
1260 | return i; |
1261 | } |
1262 | |
1263 | static struct grubConfig *readConfig(const char *inName, |
1264 | struct configFileInfo *cfi) |
1265 | { |
1266 | int in; |
1267 | char *incoming = NULL, *head; |
1268 | int rc; |
1269 | int sawEntry = 0; |
1270 | int movedLine = 0; |
1271 | struct grubConfig *cfg; |
1272 | struct singleLine *last = NULL, *line, *defaultLine = NULL; |
1273 | char *end; |
1274 | struct singleEntry *entry = NULL; |
1275 | int len; |
1276 | char *buf; |
1277 | |
1278 | if (inName == NULL) { |
1279 | printf("Could not find bootloader configuration\n"); |
1280 | exit(1); |
1281 | } else if (!strcmp(inName, "-")) { |
1282 | in = 0; |
1283 | } else { |
1284 | if ((in = open(inName, O_RDONLY)) < 0) { |
1285 | fprintf(stderr, _("error opening %s for read: %s\n"), |
1286 | inName, strerror(errno)); |
1287 | return NULL; |
1288 | } |
1289 | } |
1290 | |
1291 | rc = readFile(in, &incoming); |
1292 | close(in); |
1293 | if (rc) |
1294 | return NULL; |
1295 | |
1296 | head = incoming; |
1297 | cfg = malloc(sizeof(*cfg)); |
1298 | cfg->primaryIndent = strdup(""); |
1299 | cfg->secondaryIndent = strdup("\t"); |
1300 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; |
1301 | cfg->cfi = cfi; |
1302 | cfg->theLines = NULL; |
1303 | cfg->entries = NULL; |
1304 | cfg->fallbackImage = 0; |
1305 | cfg->isModified = 0; |
1306 | |
1307 | /* copy everything we have */ |
1308 | while (*head) { |
1309 | line = malloc(sizeof(*line)); |
1310 | lineInit(line); |
1311 | |
1312 | if (getNextLine(&head, line, cfi)) { |
1313 | free(line); |
1314 | /* XXX memory leak of everything in cfg */ |
1315 | return NULL; |
1316 | } |
1317 | |
1318 | if (!sawEntry && line->numElements) { |
1319 | free(cfg->primaryIndent); |
1320 | cfg->primaryIndent = strdup(line->indent); |
1321 | } else if (line->numElements) { |
1322 | free(cfg->secondaryIndent); |
1323 | cfg->secondaryIndent = strdup(line->indent); |
1324 | } |
1325 | |
1326 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
1327 | sawEntry = 1; |
1328 | if (!entry) { |
1329 | cfg->entries = malloc(sizeof(*entry)); |
1330 | entry = cfg->entries; |
1331 | } else { |
1332 | entry->next = malloc(sizeof(*entry)); |
1333 | entry = entry->next; |
1334 | } |
1335 | |
1336 | entry->skip = 0; |
1337 | entry->multiboot = 0; |
1338 | entry->lines = NULL; |
1339 | entry->next = NULL; |
1340 | } |
1341 | |
1342 | if (line->type == LT_SET_VARIABLE) { |
1343 | dbgPrintf("found 'set' command (%d elements): ", |
1344 | line->numElements); |
1345 | dbgPrintf("%s", line->indent); |
1346 | for (int i = 0; i < line->numElements; i++) |
1347 | dbgPrintf("\"%s\"%s", line->elements[i].item, |
1348 | line->elements[i].indent); |
1349 | dbgPrintf("\n"); |
1350 | struct keywordTypes *kwType = |
1351 | getKeywordByType(LT_DEFAULT, cfi); |
1352 | if (kwType && line->numElements == 3 |
1353 | && !strcmp(line->elements[1].item, kwType->key) |
1354 | && !is_special_grub2_variable( |
1355 | line->elements[2].item)) { |
1356 | dbgPrintf("Line sets default config\n"); |
1357 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1358 | defaultLine = line; |
1359 | } |
1360 | } else if (iskernel(line->type)) { |
1361 | /* if by some freak chance this is multiboot and the |
1362 | * "module" lines came earlier in the template, make |
1363 | * sure to use LT_HYPER instead of LT_KERNEL now |
1364 | */ |
1365 | if (entry && entry->multiboot) |
1366 | line->type = LT_HYPER; |
1367 | |
1368 | } else if (line->type == LT_MBMODULE) { |
1369 | /* go back and fix the LT_KERNEL line to indicate |
1370 | * LT_HYPER instead, now that we know this is a |
1371 | * multiboot entry. This only applies to grub, but |
1372 | * that's the only place we should find LT_MBMODULE |
1373 | * lines anyway. |
1374 | */ |
1375 | for (struct singleLine * l = entry->lines; l; |
1376 | l = l->next) { |
1377 | if (l->type == LT_HYPER) |
1378 | break; |
1379 | else if (iskernel(l->type)) { |
1380 | l->type = LT_HYPER; |
1381 | break; |
1382 | } |
1383 | } |
1384 | entry->multiboot = 1; |
1385 | |
1386 | } else if (line->type == LT_HYPER) { |
1387 | entry->multiboot = 1; |
1388 | |
1389 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1390 | cfg->fallbackImage = |
1391 | strtol(line->elements[1].item, &end, 10); |
1392 | if (*end) |
1393 | cfg->fallbackImage = -1; |
1394 | |
1395 | } else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted) |
1396 | || (line->type == LT_TITLE |
1397 | && line->numElements > 1)) { |
1398 | /* make the title/default a single argument (undoing |
1399 | * our parsing) */ |
1400 | len = 0; |
1401 | for (int i = 1; i < line->numElements; i++) { |
1402 | len += strlen(line->elements[i].item); |
1403 | len += strlen(line->elements[i].indent); |
1404 | } |
1405 | buf = malloc(len + 1); |
1406 | *buf = '\0'; |
1407 | |
1408 | for (int i = 1; i < line->numElements; i++) { |
1409 | strcat(buf, line->elements[i].item); |
1410 | free(line->elements[i].item); |
1411 | |
1412 | if ((i + 1) != line->numElements) { |
1413 | strcat(buf, line->elements[i].indent); |
1414 | free(line->elements[i].indent); |
1415 | } |
1416 | } |
1417 | |
1418 | line->elements[1].indent = |
1419 | line->elements[line->numElements - 1].indent; |
1420 | line->elements[1].item = buf; |
1421 | line->numElements = 2; |
1422 | } else if (line->type == LT_MENUENTRY && line->numElements > 3) { |
1423 | /* let --remove-kernel="TITLE=what" work */ |
1424 | len = 0; |
1425 | char *extras; |
1426 | char *title; |
1427 | /* initially unseen value */ |
1428 | char quote_char = '\0'; |
1429 | |
1430 | for (int i = 1; i < line->numElements; i++) { |
1431 | len += strlen(line->elements[i].item); |
1432 | len += strlen(line->elements[i].indent); |
1433 | } |
1434 | buf = malloc(len + 1); |
1435 | *buf = '\0'; |
1436 | |
1437 | /* allocate mem for extra flags. */ |
1438 | extras = malloc(len + 1); |
1439 | *extras = '\0'; |
1440 | |
1441 | /* get title. */ |
1442 | for (int i = 0; i < line->numElements; i++) { |
1443 | if (!strcmp |
1444 | (line->elements[i].item, "menuentry")) |
1445 | continue; |
1446 | if (isquote(*line->elements[i].item) |
1447 | && quote_char == '\0') { |
1448 | /* ensure we properly pair off quotes */ |
1449 | quote_char = *line->elements[i].item; |
1450 | title = line->elements[i].item + 1; |
1451 | } else { |
1452 | title = line->elements[i].item; |
1453 | } |
1454 | |
1455 | len = strlen(title); |
1456 | if (title[len - 1] == quote_char) { |
1457 | strncat(buf, title, len - 1); |
1458 | break; |
1459 | } else { |
1460 | strcat(buf, title); |
1461 | strcat(buf, line->elements[i].indent); |
1462 | } |
1463 | } |
1464 | |
1465 | /* get extras */ |
1466 | int count = 0; |
1467 | quote_char = '\0'; |
1468 | for (int i = 0; i < line->numElements; i++) { |
1469 | if (count >= 2) { |
1470 | strcat(extras, line->elements[i].item); |
1471 | strcat(extras, |
1472 | line->elements[i].indent); |
1473 | } |
1474 | |
1475 | if (!strcmp |
1476 | (line->elements[i].item, "menuentry")) |
1477 | continue; |
1478 | |
1479 | /* count ' or ", there should be two in menuentry line. */ |
1480 | if (isquote(*line->elements[i].item) |
1481 | && quote_char == '\0') { |
1482 | /* ensure we properly pair off quotes */ |
1483 | quote_char = *line->elements[i].item; |
1484 | count++; |
1485 | } |
1486 | |
1487 | len = strlen(line->elements[i].item); |
1488 | |
1489 | if (line->elements[i].item[len - 1] == |
1490 | quote_char) |
1491 | count++; |
1492 | |
1493 | /* ok, we get the final ' or ", others are extras. */ |
1494 | } |
1495 | line->elements[1].indent = |
1496 | line->elements[line->numElements - 2].indent; |
1497 | line->elements[1].item = buf; |
1498 | line->elements[2].indent = |
1499 | line->elements[line->numElements - 2].indent; |
1500 | line->elements[2].item = extras; |
1501 | line->numElements = 3; |
1502 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
1503 | /* Strip off any " which may be present; they'll be |
1504 | * put back on write. This is one of the few (the |
1505 | * only?) places that grubby canonicalizes the output |
1506 | */ |
1507 | if (line->numElements >= 2) { |
1508 | int last, len; |
1509 | |
1510 | if (isquote(*line->elements[1].item)) |
1511 | memmove(line->elements[1].item, |
1512 | line->elements[1].item + 1, |
1513 | strlen(line->elements[1].item + |
1514 | 1) + 1); |
1515 | |
1516 | last = line->numElements - 1; |
1517 | len = strlen(line->elements[last].item) - 1; |
1518 | if (isquote(line->elements[last].item[len])) |
1519 | line->elements[last].item[len] = '\0'; |
1520 | } |
1521 | } |
1522 | |
1523 | if (line->type == LT_DEFAULT && line->numElements == 2) { |
1524 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1525 | defaultLine = line; |
1526 | } |
1527 | |
1528 | /* If we find a generic config option which should live at the |
1529 | top of the file, move it there. Old versions of grubby were |
1530 | probably responsible for putting new images in the wrong |
1531 | place in front of it anyway. */ |
1532 | if (sawEntry && line->type == LT_GENERIC) { |
1533 | struct singleLine **l = &cfg->theLines; |
1534 | struct singleLine **last_nonws = &cfg->theLines; |
1535 | while (*l) { |
1536 | if ((*l)->type != LT_WHITESPACE) |
1537 | last_nonws = &((*l)->next); |
1538 | l = &((*l)->next); |
1539 | } |
1540 | line->next = *last_nonws; |
1541 | *last_nonws = line; |
1542 | movedLine = 1; |
1543 | continue; /* without setting 'last' */ |
1544 | } |
1545 | |
1546 | /* If a second line of whitespace happens after a generic |
1547 | * option which was moved, drop it. */ |
1548 | if (movedLine && line->type == LT_WHITESPACE |
1549 | && last->type == LT_WHITESPACE) { |
1550 | lineFree(line); |
1551 | free(line); |
1552 | movedLine = 0; |
1553 | continue; |
1554 | } |
1555 | movedLine = 0; |
1556 | |
1557 | if (sawEntry) { |
1558 | if (!entry->lines) |
1559 | entry->lines = line; |
1560 | else |
1561 | last->next = line; |
1562 | dbgPrintf("readConfig added %s to %p\n", |
1563 | getKeyByType(line->type, cfi), entry); |
1564 | |
1565 | /* we could have seen this outside of an entry... if |
1566 | * so, we ignore it like any other line we don't grok |
1567 | */ |
1568 | if (line->type == LT_ENTRY_END && sawEntry) |
1569 | sawEntry = 0; |
1570 | } else { |
1571 | if (!cfg->theLines) |
1572 | cfg->theLines = line; |
1573 | else |
1574 | last->next = line; |
1575 | dbgPrintf("readConfig added %s to cfg\n", |
1576 | getKeyByType(line->type, cfi)); |
1577 | } |
1578 | |
1579 | last = line; |
1580 | } |
1581 | |
1582 | free(incoming); |
1583 | |
1584 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1585 | if (defaultLine) { |
1586 | if (defaultLine->numElements > 2 && |
1587 | cfi->defaultSupportSaved && |
1588 | !strncmp(defaultLine->elements[2].item, |
1589 | "\"${saved_entry}\"", 16)) { |
1590 | cfg->cfi->defaultIsSaved = 1; |
1591 | cfg->defaultImage = DEFAULT_SAVED_GRUB2; |
1592 | if (cfg->cfi->getEnv) { |
1593 | char *defTitle = |
1594 | cfi->getEnv(cfg->cfi, "saved_entry"); |
1595 | if (defTitle) { |
1596 | int index = 0; |
1597 | if (isnumber(defTitle)) { |
1598 | index = atoi(defTitle); |
1599 | entry = |
1600 | findEntryByIndex(cfg, |
1601 | index); |
1602 | } else { |
1603 | entry = |
1604 | findEntryByTitle(cfg, |
1605 | defTitle, |
1606 | &index); |
1607 | } |
1608 | if (entry) |
1609 | cfg->defaultImage = index; |
1610 | } |
1611 | } |
1612 | } else if (cfi->defaultIsVariable) { |
1613 | if (defaultLine->numElements == 2) { |
1614 | char *value = defaultLine->elements[1].item + 8; |
1615 | while (*value && (*value == '"' || |
1616 | *value == '\'' || |
1617 | *value == ' ' || |
1618 | *value == '\t')) |
1619 | value++; |
1620 | cfg->defaultImage = strtol(value, &end, 10); |
1621 | while (*end && (*end == '"' || *end == '\'' || |
1622 | *end == ' ' || *end == '\t')) |
1623 | end++; |
1624 | if (*end) |
1625 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1626 | } else if (defaultLine->numElements == 3) { |
1627 | char *value = defaultLine->elements[2].item; |
1628 | while (*value && (*value == '"' || |
1629 | *value == '\'' || |
1630 | *value == ' ' || |
1631 | *value == '\t')) |
1632 | value++; |
1633 | cfg->defaultImage = strtol(value, &end, 10); |
1634 | while (*end && (*end == '"' || *end == '\'' || |
1635 | *end == ' ' || *end == '\t')) |
1636 | end++; |
1637 | if (*end) |
1638 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1639 | } |
1640 | } else if (cfi->defaultSupportSaved && |
1641 | !strncmp(defaultLine->elements[1].item, "saved", |
1642 | 5)) { |
1643 | cfg->defaultImage = DEFAULT_SAVED; |
1644 | } else if (cfi->defaultIsIndex) { |
1645 | cfg->defaultImage = |
1646 | strtol(defaultLine->elements[1].item, &end, 10); |
1647 | if (*end) |
1648 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1649 | } else if (defaultLine->numElements >= 2) { |
1650 | int i = 0; |
1651 | while ((entry = findEntryByIndex(cfg, i))) { |
1652 | for (line = entry->lines; line; |
1653 | line = line->next) |
1654 | if (line->type == LT_TITLE) |
1655 | break; |
1656 | |
1657 | if (!cfi->titleBracketed) { |
1658 | if (line && (line->numElements >= 2) && |
1659 | !strcmp(defaultLine->elements[1]. |
1660 | item, |
1661 | line->elements[1].item)) |
1662 | break; |
1663 | } else if (line) { |
1664 | if (!strcmp |
1665 | (defaultLine->elements[1].item, |
1666 | extractTitle(cfg, line))) |
1667 | break; |
1668 | } |
1669 | i++; |
1670 | entry = NULL; |
1671 | } |
1672 | |
1673 | if (entry) { |
1674 | cfg->defaultImage = i; |
1675 | } else { |
1676 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1677 | } |
1678 | } |
1679 | } else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) { |
1680 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); |
1681 | if (defTitle) { |
1682 | int index = 0; |
1683 | if (isnumber(defTitle)) { |
1684 | index = atoi(defTitle); |
1685 | entry = findEntryByIndex(cfg, index); |
1686 | } else { |
1687 | entry = findEntryByTitle(cfg, defTitle, &index); |
1688 | } |
1689 | if (entry) |
1690 | cfg->defaultImage = index; |
1691 | } |
1692 | } else { |
1693 | cfg->defaultImage = FIRST_ENTRY_INDEX; |
1694 | } |
1695 | |
1696 | return cfg; |
1697 | } |
1698 | |
1699 | static void writeDefault(FILE * out, char *indent, |
1700 | char *separator, struct grubConfig *cfg) |
1701 | { |
1702 | struct singleEntry *entry; |
1703 | struct singleLine *line; |
1704 | int i; |
1705 | |
1706 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) |
1707 | return; |
1708 | |
1709 | if (cfg->defaultImage == DEFAULT_SAVED) |
1710 | fprintf(out, "%sdefault%ssaved\n", indent, separator); |
1711 | else if (cfg->cfi->defaultIsSaved) { |
1712 | fprintf(out, "%sset default=\"${saved_entry}\"\n", indent); |
1713 | if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) { |
1714 | char *title; |
1715 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
1716 | line = getLineByType(LT_MENUENTRY, entry->lines); |
1717 | if (!line) |
1718 | line = getLineByType(LT_TITLE, entry->lines); |
1719 | if (line) { |
1720 | title = extractTitle(cfg, line); |
1721 | if (title) |
1722 | cfg->cfi->setEnv(cfg->cfi, |
1723 | "saved_entry", title); |
1724 | } |
1725 | } |
1726 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
1727 | if (cfg->cfi->defaultIsIndex) { |
1728 | if (cfg->cfi->defaultIsVariable) { |
1729 | fprintf(out, "%sset default=\"%d\"\n", indent, |
1730 | cfg->defaultImage); |
1731 | } else { |
1732 | fprintf(out, "%sdefault%s%d\n", indent, |
1733 | separator, cfg->defaultImage); |
1734 | } |
1735 | } else { |
1736 | int image = cfg->defaultImage; |
1737 | |
1738 | entry = cfg->entries; |
1739 | while (entry && entry->skip) |
1740 | entry = entry->next; |
1741 | |
1742 | i = 0; |
1743 | while (entry && i < image) { |
1744 | entry = entry->next; |
1745 | |
1746 | while (entry && entry->skip) |
1747 | entry = entry->next; |
1748 | i++; |
1749 | } |
1750 | |
1751 | if (!entry) |
1752 | return; |
1753 | |
1754 | line = getLineByType(LT_TITLE, entry->lines); |
1755 | |
1756 | if (line && line->numElements >= 2) |
1757 | fprintf(out, "%sdefault%s%s\n", indent, |
1758 | separator, line->elements[1].item); |
1759 | else if (line && (line->numElements == 1) |
1760 | && cfg->cfi->titleBracketed) { |
1761 | char *title = extractTitle(cfg, line); |
1762 | if (title) { |
1763 | fprintf(out, "%sdefault%s%s\n", indent, |
1764 | separator, title); |
1765 | free(title); |
1766 | } |
1767 | } |
1768 | } |
1769 | } |
1770 | } |
1771 | |
1772 | static int writeConfig(struct grubConfig *cfg, char *outName, |
1773 | const char *prefix) |
1774 | { |
1775 | FILE *out; |
1776 | struct singleLine *line; |
1777 | struct singleEntry *entry; |
1778 | char *tmpOutName; |
1779 | int needs = MAIN_DEFAULT; |
1780 | struct stat sb; |
1781 | int i; |
1782 | |
1783 | if (!strcmp(outName, "-")) { |
1784 | out = stdout; |
1785 | tmpOutName = NULL; |
1786 | } else { |
1787 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { |
1788 | char *buf; |
1789 | int len = 256; |
1790 | int rc; |
1791 | |
1792 | /* most likely the symlink is relative, so change our |
1793 | directory to the dir of the symlink */ |
1794 | char *dir = strdupa(outName); |
1795 | rc = chdir(dirname(dir)); |
1796 | do { |
1797 | buf = alloca(len + 1); |
1798 | rc = readlink(basename(outName), buf, len); |
1799 | if (rc == len) |
1800 | len += 256; |
1801 | } while (rc == len); |
1802 | |
1803 | if (rc < 0) { |
1804 | fprintf(stderr, |
1805 | _ |
1806 | ("grubby: error readlink link %s: %s\n"), |
1807 | outName, strerror(errno)); |
1808 | return 1; |
1809 | } |
1810 | |
1811 | outName = buf; |
1812 | outName[rc] = '\0'; |
1813 | } |
1814 | |
1815 | tmpOutName = alloca(strlen(outName) + 2); |
1816 | sprintf(tmpOutName, "%s-", outName); |
1817 | out = fopen(tmpOutName, "w"); |
1818 | if (!out) { |
1819 | fprintf(stderr, _("grubby: error creating %s: %s\n"), |
1820 | tmpOutName, strerror(errno)); |
1821 | return 1; |
1822 | } |
1823 | |
1824 | if (!stat(outName, &sb)) { |
1825 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { |
1826 | fprintf(stderr, |
1827 | _ |
1828 | ("grubby: error setting perms on %s: %s\n"), |
1829 | tmpOutName, strerror(errno)); |
1830 | fclose(out); |
1831 | unlink(tmpOutName); |
1832 | return 1; |
1833 | } |
1834 | } |
1835 | } |
1836 | |
1837 | line = cfg->theLines; |
1838 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1839 | while (line) { |
1840 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1841 | line->numElements == 3 && |
1842 | !strcmp(line->elements[1].item, defaultKw->key) && |
1843 | !is_special_grub2_variable(line->elements[2].item)) { |
1844 | writeDefault(out, line->indent, |
1845 | line->elements[0].indent, cfg); |
1846 | needs &= ~MAIN_DEFAULT; |
1847 | } else if (line->type == LT_DEFAULT) { |
1848 | writeDefault(out, line->indent, |
1849 | line->elements[0].indent, cfg); |
1850 | needs &= ~MAIN_DEFAULT; |
1851 | } else if (line->type == LT_FALLBACK) { |
1852 | if (cfg->fallbackImage > -1) |
1853 | fprintf(out, "%s%s%s%d\n", line->indent, |
1854 | line->elements[0].item, |
1855 | line->elements[0].indent, |
1856 | cfg->fallbackImage); |
1857 | } else { |
1858 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1859 | fprintf(stderr, |
1860 | _("grubby: error writing %s: %s\n"), |
1861 | tmpOutName, strerror(errno)); |
1862 | fclose(out); |
1863 | unlink(tmpOutName); |
1864 | return 1; |
1865 | } |
1866 | } |
1867 | |
1868 | line = line->next; |
1869 | } |
1870 | |
1871 | if (needs & MAIN_DEFAULT) { |
1872 | writeDefault(out, cfg->primaryIndent, "=", cfg); |
1873 | needs &= ~MAIN_DEFAULT; |
1874 | } |
1875 | |
1876 | i = 0; |
1877 | while ((entry = findEntryByIndex(cfg, i++))) { |
1878 | if (entry->skip) |
1879 | continue; |
1880 | |
1881 | line = entry->lines; |
1882 | while (line) { |
1883 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1884 | fprintf(stderr, |
1885 | _("grubby: error writing %s: %s\n"), |
1886 | tmpOutName, strerror(errno)); |
1887 | fclose(out); |
1888 | unlink(tmpOutName); |
1889 | return 1; |
1890 | } |
1891 | line = line->next; |
1892 | } |
1893 | } |
1894 | |
1895 | if (tmpOutName) { |
1896 | if (rename(tmpOutName, outName)) { |
1897 | fprintf(stderr, |
1898 | _("grubby: error moving %s to %s: %s\n"), |
1899 | tmpOutName, outName, strerror(errno)); |
1900 | unlink(outName); |
1901 | return 1; |
1902 | } |
1903 | } |
1904 | |
1905 | return 0; |
1906 | } |
1907 | |
1908 | static int numEntries(struct grubConfig *cfg) |
1909 | { |
1910 | int i = 0; |
1911 | struct singleEntry *entry; |
1912 | |
1913 | entry = cfg->entries; |
1914 | while (entry) { |
1915 | if (!entry->skip) |
1916 | i++; |
1917 | entry = entry->next; |
1918 | } |
1919 | return i; |
1920 | } |
1921 | |
1922 | static char *findDiskForRoot() |
1923 | { |
1924 | int fd; |
1925 | char buf[65536]; |
1926 | char *devname; |
1927 | char *chptr; |
1928 | int rc; |
1929 | |
1930 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { |
1931 | fprintf(stderr, "grubby: failed to open %s: %s\n", |
1932 | _PATH_MOUNTED, strerror(errno)); |
1933 | return NULL; |
1934 | } |
1935 | |
1936 | rc = read(fd, buf, sizeof(buf) - 1); |
1937 | if (rc <= 0) { |
1938 | fprintf(stderr, "grubby: failed to read %s: %s\n", |
1939 | _PATH_MOUNTED, strerror(errno)); |
1940 | close(fd); |
1941 | return NULL; |
1942 | } |
1943 | close(fd); |
1944 | buf[rc] = '\0'; |
1945 | chptr = buf; |
1946 | |
1947 | char *foundanswer = NULL; |
1948 | |
1949 | while (chptr && chptr != buf + rc) { |
1950 | devname = chptr; |
1951 | |
1952 | /* |
1953 | * The first column of a mtab entry is the device, but if the |
1954 | * entry is a special device it won't start with /, so move |
1955 | * on to the next line. |
1956 | */ |
1957 | if (*devname != '/') { |
1958 | chptr = strchr(chptr, '\n'); |
1959 | if (chptr) |
1960 | chptr++; |
1961 | continue; |
1962 | } |
1963 | |
1964 | /* Seek to the next space */ |
1965 | chptr = strchr(chptr, ' '); |
1966 | if (!chptr) { |
1967 | fprintf(stderr, "grubby: error parsing %s: %s\n", |
1968 | _PATH_MOUNTED, strerror(errno)); |
1969 | return NULL; |
1970 | } |
1971 | |
1972 | /* |
1973 | * The second column of a mtab entry is the mount point, we |
1974 | * are looking for '/' obviously. |
1975 | */ |
1976 | if (*(++chptr) == '/' && *(++chptr) == ' ') { |
1977 | /* remember the last / entry in mtab */ |
1978 | foundanswer = devname; |
1979 | } |
1980 | |
1981 | /* Next line */ |
1982 | chptr = strchr(chptr, '\n'); |
1983 | if (chptr) |
1984 | chptr++; |
1985 | } |
1986 | |
1987 | /* Return the last / entry found */ |
1988 | if (foundanswer) { |
1989 | chptr = strchr(foundanswer, ' '); |
1990 | *chptr = '\0'; |
1991 | return strdup(foundanswer); |
1992 | } |
1993 | |
1994 | return NULL; |
1995 | } |
1996 | |
1997 | void printEntry(struct singleEntry *entry, FILE * f) |
1998 | { |
1999 | int i; |
2000 | struct singleLine *line; |
2001 | |
2002 | for (line = entry->lines; line; line = line->next) { |
2003 | log_message(f, "DBG: %s", line->indent); |
2004 | for (i = 0; i < line->numElements; i++) { |
2005 | /* Need to handle this, because we strip the quotes from |
2006 | * menuentry when read it. */ |
2007 | if (line->type == LT_MENUENTRY && i == 1) { |
2008 | if (!isquote(*line->elements[i].item)) |
2009 | log_message(f, "\'%s\'", |
2010 | line->elements[i].item); |
2011 | else |
2012 | log_message(f, "%s", |
2013 | line->elements[i].item); |
2014 | log_message(f, "%s", line->elements[i].indent); |
2015 | |
2016 | continue; |
2017 | } |
2018 | |
2019 | log_message(f, "%s%s", |
2020 | line->elements[i].item, |
2021 | line->elements[i].indent); |
2022 | } |
2023 | log_message(f, "\n"); |
2024 | } |
2025 | } |
2026 | |
2027 | void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt, |
2028 | ...) |
2029 | { |
2030 | static int once; |
2031 | va_list argp, argq; |
2032 | |
2033 | va_start(argp, fmt); |
2034 | |
2035 | va_copy(argq, argp); |
2036 | if (!once) { |
2037 | log_time(NULL); |
2038 | log_message(NULL, "command line: %s\n", saved_command_line); |
2039 | } |
2040 | log_message(NULL, "DBG: Image entry %s: ", |
2041 | okay ? "succeeded" : "failed"); |
2042 | log_vmessage(NULL, fmt, argq); |
2043 | |
2044 | printEntry(entry, NULL); |
2045 | va_end(argq); |
2046 | |
2047 | if (!debug) { |
2048 | once = 1; |
2049 | va_end(argp); |
2050 | return; |
2051 | } |
2052 | |
2053 | if (okay) { |
2054 | va_end(argp); |
2055 | return; |
2056 | } |
2057 | |
2058 | if (!once) |
2059 | log_message(stderr, "DBG: command line: %s\n", |
2060 | saved_command_line); |
2061 | once = 1; |
2062 | fprintf(stderr, "DBG: Image entry failed: "); |
2063 | vfprintf(stderr, fmt, argp); |
2064 | printEntry(entry, stderr); |
2065 | va_end(argp); |
2066 | } |
2067 | |
2068 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
2069 | |
2070 | static int endswith(const char *s, char c) |
2071 | { |
2072 | int slen; |
2073 | |
2074 | if (!s || !s[0]) |
2075 | return 0; |
2076 | slen = strlen(s) - 1; |
2077 | |
2078 | return s[slen] == c; |
2079 | } |
2080 | |
2081 | int suitableImage(struct singleEntry *entry, const char *bootPrefix, |
2082 | int skipRemoved, int flags) |
2083 | { |
2084 | struct singleLine *line; |
2085 | char *fullName; |
2086 | int i; |
2087 | char *dev; |
2088 | char *rootspec; |
2089 | char *rootdev; |
2090 | |
2091 | if (skipRemoved && entry->skip) { |
2092 | notSuitablePrintf(entry, 0, "marked to skip\n"); |
2093 | return 0; |
2094 | } |
2095 | |
2096 | line = |
2097 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2098 | entry->lines); |
2099 | if (!line) { |
2100 | notSuitablePrintf(entry, 0, "no line found\n"); |
2101 | return 0; |
2102 | } |
2103 | if (line->numElements < 2) { |
2104 | notSuitablePrintf(entry, 0, "line has only %d elements\n", |
2105 | line->numElements); |
2106 | return 0; |
2107 | } |
2108 | |
2109 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
2110 | notSuitablePrintf(entry, 1, "\n"); |
2111 | return 1; |
2112 | } |
2113 | |
2114 | fullName = alloca(strlen(bootPrefix) + |
2115 | strlen(line->elements[1].item) + 1); |
2116 | rootspec = getRootSpecifier(line->elements[1].item); |
2117 | int rootspec_offset = rootspec ? strlen(rootspec) : 0; |
2118 | int hasslash = endswith(bootPrefix, '/') || |
2119 | beginswith(line->elements[1].item + rootspec_offset, '/'); |
2120 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", |
2121 | line->elements[1].item + rootspec_offset); |
2122 | if (access(fullName, R_OK)) { |
2123 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); |
2124 | return 0; |
2125 | } |
2126 | for (i = 2; i < line->numElements; i++) |
2127 | if (!strncasecmp(line->elements[i].item, "root=", 5)) |
2128 | break; |
2129 | if (i < line->numElements) { |
2130 | dev = line->elements[i].item + 5; |
2131 | } else { |
2132 | /* look for a lilo style LT_ROOT line */ |
2133 | line = getLineByType(LT_ROOT, entry->lines); |
2134 | |
2135 | if (line && line->numElements >= 2) { |
2136 | dev = line->elements[1].item; |
2137 | } else { |
2138 | /* didn't succeed in finding a LT_ROOT, let's try |
2139 | * LT_KERNELARGS. grub+multiboot uses LT_MBMODULE |
2140 | * for the args, so check that too. |
2141 | */ |
2142 | line = |
2143 | getLineByType(LT_KERNELARGS | LT_MBMODULE, |
2144 | entry->lines); |
2145 | |
2146 | /* failed to find one */ |
2147 | if (!line) { |
2148 | notSuitablePrintf(entry, 0, "no line found\n"); |
2149 | return 0; |
2150 | } |
2151 | |
2152 | for (i = 1; i < line->numElements; i++) |
2153 | if (!strncasecmp |
2154 | (line->elements[i].item, "root=", 5)) |
2155 | break; |
2156 | if (i < line->numElements) |
2157 | dev = line->elements[i].item + 5; |
2158 | else { |
2159 | notSuitablePrintf(entry, 0, |
2160 | "no root= entry found\n"); |
2161 | /* it failed too... can't find root= */ |
2162 | return 0; |
2163 | } |
2164 | } |
2165 | } |
2166 | |
2167 | dev = getpathbyspec(dev); |
2168 | if (!getpathbyspec(dev)) { |
2169 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", |
2170 | dev); |
2171 | return 0; |
2172 | } else |
2173 | dev = getpathbyspec(dev); |
2174 | |
2175 | rootdev = findDiskForRoot(); |
2176 | if (!rootdev) { |
2177 | notSuitablePrintf(entry, 0, "can't find root device\n"); |
2178 | return 0; |
2179 | } |
2180 | |
2181 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
2182 | notSuitablePrintf(entry, 0, |
2183 | "uuid missing: rootdev %s, dev %s\n", |
2184 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2185 | free(rootdev); |
2186 | return 0; |
2187 | } |
2188 | |
2189 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
2190 | notSuitablePrintf(entry, 0, |
2191 | "uuid mismatch: rootdev %s, dev %s\n", |
2192 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2193 | free(rootdev); |
2194 | return 0; |
2195 | } |
2196 | |
2197 | free(rootdev); |
2198 | notSuitablePrintf(entry, 1, "\n"); |
2199 | |
2200 | return 1; |
2201 | } |
2202 | |
2203 | /* returns the first match on or after the one pointed to by index (if index |
2204 | is not NULL) which is not marked as skip */ |
2205 | struct singleEntry *findEntryByPath(struct grubConfig *config, |
2206 | const char *kernel, const char *prefix, |
2207 | int *index) |
2208 | { |
2209 | struct singleEntry *entry = NULL; |
2210 | struct singleLine *line; |
2211 | int i; |
2212 | char *chptr; |
2213 | char *rootspec = NULL; |
2214 | enum lineType_e checkType = LT_KERNEL; |
2215 | |
2216 | if (isdigit(*kernel)) { |
2217 | int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); |
2218 | |
2219 | i = 0; |
2220 | indexVars[i] = strtol(kernel, &chptr, 10); |
2221 | while (*chptr == ',') { |
2222 | i++; |
2223 | kernel = chptr + 1; |
2224 | indexVars[i] = strtol(kernel, &chptr, 10); |
2225 | } |
2226 | |
2227 | if (*chptr) { |
2228 | /* can't parse it, bail */ |
2229 | return NULL; |
2230 | } |
2231 | |
2232 | indexVars[i + 1] = -1; |
2233 | |
2234 | i = 0; |
2235 | if (index) { |
2236 | while (i < *index) { |
2237 | i++; |
2238 | if (indexVars[i] == -1) |
2239 | return NULL; |
2240 | } |
2241 | } |
2242 | |
2243 | entry = findEntryByIndex(config, indexVars[i]); |
2244 | if (!entry) |
2245 | return NULL; |
2246 | |
2247 | line = |
2248 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
2249 | LT_KERNEL_16, entry->lines); |
2250 | if (!line) |
2251 | return NULL; |
2252 | |
2253 | if (index) |
2254 | *index = indexVars[i]; |
2255 | return entry; |
2256 | } |
2257 | |
2258 | if (!strcmp(kernel, "DEFAULT")) { |
2259 | if (index && *index > config->defaultImage) { |
2260 | entry = NULL; |
2261 | } else { |
2262 | entry = findEntryByIndex(config, config->defaultImage); |
2263 | if (entry && entry->skip) |
2264 | entry = NULL; |
2265 | else if (index) |
2266 | *index = config->defaultImage; |
2267 | } |
2268 | } else if (!strcmp(kernel, "ALL")) { |
2269 | if (index) |
2270 | i = *index; |
2271 | else |
2272 | i = 0; |
2273 | |
2274 | while ((entry = findEntryByIndex(config, i))) { |
2275 | if (!entry->skip) |
2276 | break; |
2277 | i++; |
2278 | } |
2279 | |
2280 | if (entry && index) |
2281 | *index = i; |
2282 | } else { |
2283 | if (index) |
2284 | i = *index; |
2285 | else |
2286 | i = 0; |
2287 | |
2288 | if (!strncmp(kernel, "TITLE=", 6)) { |
2289 | prefix = ""; |
2290 | checkType = LT_TITLE | LT_MENUENTRY; |
2291 | kernel += 6; |
2292 | } |
2293 | |
2294 | for (entry = findEntryByIndex(config, i); entry; |
2295 | entry = entry->next, i++) { |
2296 | if (entry->skip) |
2297 | continue; |
2298 | |
2299 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", |
2300 | checkType, kernel, entry); |
2301 | |
2302 | /* check all the lines matching checkType */ |
2303 | for (line = entry->lines; line; line = line->next) { |
2304 | enum lineType_e ct = checkType; |
2305 | if (entry->multiboot && checkType == LT_KERNEL) |
2306 | ct = LT_KERNEL | LT_KERNEL_EFI | |
2307 | LT_MBMODULE | LT_HYPER | |
2308 | LT_KERNEL_16; |
2309 | else if (checkType & LT_KERNEL) |
2310 | ct = checkType | LT_KERNEL_EFI | |
2311 | LT_KERNEL_16; |
2312 | line = getLineByType(ct, line); |
2313 | if (!line) |
2314 | break; /* not found in this entry */ |
2315 | |
2316 | if (line && line->type != LT_MENUENTRY && |
2317 | line->numElements >= 2) { |
2318 | rootspec = |
2319 | getRootSpecifier(line->elements[1]. |
2320 | item); |
2321 | if (!strcmp |
2322 | (line->elements[1].item + |
2323 | ((rootspec != |
2324 | NULL) ? strlen(rootspec) : 0), |
2325 | kernel + strlen(prefix))) |
2326 | break; |
2327 | } |
2328 | if (line->type == LT_MENUENTRY && |
2329 | !strcmp(line->elements[1].item, kernel)) |
2330 | break; |
2331 | } |
2332 | |
2333 | /* make sure this entry has a kernel identifier; this skips |
2334 | * non-Linux boot entries (could find netbsd etc, though, which is |
2335 | * unfortunate) |
2336 | */ |
2337 | if (line |
2338 | && getLineByType(LT_KERNEL | LT_HYPER | |
2339 | LT_KERNEL_EFI | LT_KERNEL_16, |
2340 | entry->lines)) |
2341 | break; /* found 'im! */ |
2342 | } |
2343 | |
2344 | if (index) |
2345 | *index = i; |
2346 | } |
2347 | |
2348 | return entry; |
2349 | } |
2350 | |
2351 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
2352 | int *index) |
2353 | { |
2354 | struct singleEntry *entry; |
2355 | struct singleLine *line; |
2356 | int i; |
2357 | char *newtitle; |
2358 | |
2359 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { |
2360 | if (index && i < *index) |
2361 | continue; |
2362 | line = getLineByType(LT_TITLE, entry->lines); |
2363 | if (!line) |
2364 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2365 | if (!line) |
2366 | continue; |
2367 | newtitle = grub2ExtractTitle(line); |
2368 | if (!newtitle) |
2369 | continue; |
2370 | if (!strcmp(title, newtitle)) |
2371 | break; |
2372 | } |
2373 | |
2374 | if (!entry) |
2375 | return NULL; |
2376 | |
2377 | if (index) |
2378 | *index = i; |
2379 | return entry; |
2380 | } |
2381 | |
2382 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index) |
2383 | { |
2384 | struct singleEntry *entry; |
2385 | |
2386 | entry = cfg->entries; |
2387 | while (index && entry) { |
2388 | entry = entry->next; |
2389 | index--; |
2390 | } |
2391 | |
2392 | return entry; |
2393 | } |
2394 | |
2395 | /* Find a good template to use for the new kernel. An entry is |
2396 | * good if the kernel and mkinitrd exist (even if the entry |
2397 | * is going to be removed). Try and use the default entry, but |
2398 | * if that doesn't work just take the first. If we can't find one, |
2399 | * bail. */ |
2400 | struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix, |
2401 | int *indexPtr, int skipRemoved, int flags) |
2402 | { |
2403 | struct singleEntry *entry, *entry2; |
2404 | int index; |
2405 | |
2406 | if (cfg->cfi->defaultIsSaved) { |
2407 | if (cfg->cfi->getEnv) { |
2408 | char *defTitle = |
2409 | cfg->cfi->getEnv(cfg->cfi, "saved_entry"); |
2410 | if (defTitle) { |
2411 | int index = 0; |
2412 | if (isnumber(defTitle)) { |
2413 | index = atoi(defTitle); |
2414 | entry = findEntryByIndex(cfg, index); |
2415 | } else { |
2416 | entry = |
2417 | findEntryByTitle(cfg, defTitle, |
2418 | &index); |
2419 | } |
2420 | if (entry |
2421 | && suitableImage(entry, prefix, skipRemoved, |
2422 | flags)) { |
2423 | cfg->defaultImage = index; |
2424 | if (indexPtr) |
2425 | *indexPtr = index; |
2426 | return entry; |
2427 | } |
2428 | } |
2429 | } |
2430 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
2431 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2432 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { |
2433 | if (indexPtr) |
2434 | *indexPtr = cfg->defaultImage; |
2435 | return entry; |
2436 | } |
2437 | } |
2438 | |
2439 | index = 0; |
2440 | while ((entry = findEntryByIndex(cfg, index))) { |
2441 | if (suitableImage(entry, prefix, skipRemoved, flags)) { |
2442 | int j; |
2443 | for (j = 0; j < index; j++) { |
2444 | entry2 = findEntryByIndex(cfg, j); |
2445 | if (entry2->skip) |
2446 | index--; |
2447 | } |
2448 | if (indexPtr) |
2449 | *indexPtr = index; |
2450 | |
2451 | return entry; |
2452 | } |
2453 | |
2454 | index++; |
2455 | } |
2456 | |
2457 | fprintf(stderr, |
2458 | _("grubby fatal error: unable to find a suitable template\n")); |
2459 | |
2460 | return NULL; |
2461 | } |
2462 | |
2463 | char *findBootPrefix(void) |
2464 | { |
2465 | struct stat sb, sb2; |
2466 | |
2467 | stat("/", &sb); |
2468 | #ifdef __ia64__ |
2469 | stat("/boot/efi/EFI/redhat/", &sb2); |
2470 | #else |
2471 | stat("/boot", &sb2); |
2472 | #endif |
2473 | |
2474 | if (sb.st_dev == sb2.st_dev) |
2475 | return strdup(""); |
2476 | |
2477 | #ifdef __ia64__ |
2478 | return strdup("/boot/efi/EFI/redhat/"); |
2479 | #else |
2480 | return strdup("/boot"); |
2481 | #endif |
2482 | } |
2483 | |
2484 | void markRemovedImage(struct grubConfig *cfg, const char *image, |
2485 | const char *prefix) |
2486 | { |
2487 | struct singleEntry *entry; |
2488 | |
2489 | if (!image) |
2490 | return; |
2491 | |
2492 | /* check and see if we're removing the default image */ |
2493 | if (isdigit(*image)) { |
2494 | entry = findEntryByPath(cfg, image, prefix, NULL); |
2495 | if (entry) |
2496 | entry->skip = 1; |
2497 | return; |
2498 | } |
2499 | |
2500 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2501 | entry->skip = 1; |
2502 | } |
2503 | |
2504 | void setDefaultImage(struct grubConfig *config, int isUserSpecifiedKernelPath, |
2505 | const char *defaultKernelPath, int newBootEntryIsDefault, |
2506 | const char *prefix, int flags, int newDefaultBootEntryIndex) |
2507 | { |
2508 | struct singleEntry *entry, *entry2, *newDefault; |
2509 | int i, j; |
2510 | |
2511 | if (newBootEntryIsDefault) { |
2512 | config->defaultImage = FIRST_ENTRY_INDEX; |
2513 | return; |
2514 | } else if ((newDefaultBootEntryIndex >= 0) && config->cfi->defaultIsIndex) { |
2515 | if (findEntryByIndex(config, newDefaultBootEntryIndex)) |
2516 | config->defaultImage = newDefaultBootEntryIndex; |
2517 | else |
2518 | config->defaultImage = NO_DEFAULT_ENTRY; |
2519 | return; |
2520 | } else if (defaultKernelPath) { |
2521 | i = 0; |
2522 | if (findEntryByPath(config, defaultKernelPath, prefix, &i)) { |
2523 | config->defaultImage = i; |
2524 | } else { |
2525 | config->defaultImage = NO_DEFAULT_ENTRY; |
2526 | return; |
2527 | } |
2528 | } |
2529 | |
2530 | /* defaultImage now points to what we'd like to use, but before any |
2531 | * order changes */ |
2532 | if ((config->defaultImage == DEFAULT_SAVED) || |
2533 | (config->defaultImage == DEFAULT_SAVED_GRUB2)) |
2534 | /* default is set to saved, we don't want to change it */ |
2535 | return; |
2536 | |
2537 | if (config->defaultImage >= FIRST_ENTRY_INDEX) |
2538 | entry = findEntryByIndex(config, config->defaultImage); |
2539 | else |
2540 | entry = NULL; |
2541 | |
2542 | if (entry && !entry->skip) { |
2543 | /* we can preserve the default */ |
2544 | if (isUserSpecifiedKernelPath) |
2545 | config->defaultImage++; |
2546 | |
2547 | /* count the number of entries erased before this one */ |
2548 | for (j = 0; j < config->defaultImage; j++) { |
2549 | entry2 = findEntryByIndex(config, j); |
2550 | if (entry2->skip) |
2551 | config->defaultImage--; |
2552 | } |
2553 | } else if (isUserSpecifiedKernelPath) { |
2554 | config->defaultImage = FIRST_ENTRY_INDEX; |
2555 | } else { |
2556 | /* Either we just erased the default (or the default line was |
2557 | * bad to begin with) and didn't put a new one in. We'll use |
2558 | * the first valid image. */ |
2559 | newDefault = |
2560 | findTemplate(config, prefix, &config->defaultImage, 1, |
2561 | flags); |
2562 | if (!newDefault) |
2563 | config->defaultImage = NO_DEFAULT_ENTRY; |
2564 | } |
2565 | } |
2566 | |
2567 | void setFallbackImage(struct grubConfig *config, int hasNew) |
2568 | { |
2569 | struct singleEntry *entry, *entry2; |
2570 | int j; |
2571 | |
2572 | if (config->fallbackImage == -1) |
2573 | return; |
2574 | |
2575 | entry = findEntryByIndex(config, config->fallbackImage); |
2576 | if (!entry || entry->skip) { |
2577 | config->fallbackImage = -1; |
2578 | return; |
2579 | } |
2580 | |
2581 | if (hasNew) |
2582 | config->fallbackImage++; |
2583 | |
2584 | /* count the number of entries erased before this one */ |
2585 | for (j = 0; j < config->fallbackImage; j++) { |
2586 | entry2 = findEntryByIndex(config, j); |
2587 | if (entry2->skip) |
2588 | config->fallbackImage--; |
2589 | } |
2590 | } |
2591 | |
2592 | void displayEntry(struct singleEntry *entry, const char *prefix, int index) |
2593 | { |
2594 | struct singleLine *line; |
2595 | char *root = NULL; |
2596 | int i; |
2597 | int j; |
2598 | |
2599 | printf("index=%d\n", index); |
2600 | |
2601 | line = |
2602 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2603 | entry->lines); |
2604 | if (!line) { |
2605 | printf("non linux entry\n"); |
2606 | return; |
2607 | } |
2608 | |
2609 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2610 | printf("kernel=%s\n", line->elements[1].item); |
2611 | else |
2612 | printf("kernel=%s%s\n", prefix, line->elements[1].item); |
2613 | |
2614 | if (line->numElements >= 3) { |
2615 | printf("args=\""); |
2616 | i = 2; |
2617 | while (i < line->numElements) { |
2618 | if (!strncmp(line->elements[i].item, "root=", 5)) { |
2619 | root = line->elements[i].item + 5; |
2620 | } else { |
2621 | printf("%s%s", line->elements[i].item, |
2622 | line->elements[i].indent); |
2623 | } |
2624 | |
2625 | i++; |
2626 | } |
2627 | printf("\"\n"); |
2628 | } else { |
2629 | line = getLineByType(LT_KERNELARGS, entry->lines); |
2630 | if (line) { |
2631 | char *s; |
2632 | |
2633 | printf("args=\""); |
2634 | i = 1; |
2635 | while (i < line->numElements) { |
2636 | if (!strncmp |
2637 | (line->elements[i].item, "root=", 5)) { |
2638 | root = line->elements[i].item + 5; |
2639 | } else { |
2640 | s = line->elements[i].item; |
2641 | |
2642 | printf("%s%s", s, |
2643 | line->elements[i].indent); |
2644 | } |
2645 | |
2646 | i++; |
2647 | } |
2648 | |
2649 | s = line->elements[i - 1].indent; |
2650 | printf("\"\n"); |
2651 | } |
2652 | } |
2653 | |
2654 | if (!root) { |
2655 | line = getLineByType(LT_ROOT, entry->lines); |
2656 | if (line && line->numElements >= 2) |
2657 | root = line->elements[1].item; |
2658 | } |
2659 | |
2660 | if (root) { |
2661 | char *s = alloca(strlen(root) + 1); |
2662 | |
2663 | strcpy(s, root); |
2664 | if (s[strlen(s) - 1] == '"') |
2665 | s[strlen(s) - 1] = '\0'; |
2666 | /* make sure the root doesn't have a trailing " */ |
2667 | printf("root=%s\n", s); |
2668 | } |
2669 | |
2670 | line = |
2671 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
2672 | entry->lines); |
2673 | |
2674 | if (line && line->numElements >= 2) { |
2675 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2676 | printf("initrd="); |
2677 | else |
2678 | printf("initrd=%s", prefix); |
2679 | |
2680 | for (i = 1; i < line->numElements; i++) |
2681 | printf("%s%s", line->elements[i].item, |
2682 | line->elements[i].indent); |
2683 | printf("\n"); |
2684 | } |
2685 | |
2686 | line = getLineByType(LT_TITLE, entry->lines); |
2687 | if (line) { |
2688 | printf("title=%s\n", line->elements[1].item); |
2689 | } else { |
2690 | char *title; |
2691 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2692 | if (line) { |
2693 | title = grub2ExtractTitle(line); |
2694 | if (title) |
2695 | printf("title=%s\n", title); |
2696 | } |
2697 | } |
2698 | |
2699 | for (j = 0, line = entry->lines; line; line = line->next) { |
2700 | if ((line->type & LT_MBMODULE) && line->numElements >= 2) { |
2701 | if (!strncmp |
2702 | (prefix, line->elements[1].item, strlen(prefix))) |
2703 | printf("mbmodule%d=", j); |
2704 | else |
2705 | printf("mbmodule%d=%s", j, prefix); |
2706 | |
2707 | for (i = 1; i < line->numElements; i++) |
2708 | printf("%s%s", line->elements[i].item, |
2709 | line->elements[i].indent); |
2710 | printf("\n"); |
2711 | j++; |
2712 | } |
2713 | } |
2714 | } |
2715 | |
2716 | int isSuseSystem(void) |
2717 | { |
2718 | const char *path; |
2719 | const static char default_path[] = "/etc/SuSE-release"; |
2720 | |
2721 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) |
2722 | path = default_path; |
2723 | |
2724 | if (!access(path, R_OK)) |
2725 | return 1; |
2726 | return 0; |
2727 | } |
2728 | |
2729 | int isSuseGrubConf(const char *path) |
2730 | { |
2731 | FILE *grubConf; |
2732 | char *line = NULL; |
2733 | size_t len = 0, res = 0; |
2734 | |
2735 | grubConf = fopen(path, "r"); |
2736 | if (!grubConf) { |
2737 | dbgPrintf("Could not open SuSE configuration file '%s'\n", |
2738 | path); |
2739 | return 0; |
2740 | } |
2741 | |
2742 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2743 | if (!strncmp(line, "setup", 5)) { |
2744 | fclose(grubConf); |
2745 | free(line); |
2746 | return 1; |
2747 | } |
2748 | } |
2749 | |
2750 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", |
2751 | path); |
2752 | |
2753 | fclose(grubConf); |
2754 | free(line); |
2755 | return 0; |
2756 | } |
2757 | |
2758 | int suseGrubConfGetLba(const char *path, int *lbaPtr) |
2759 | { |
2760 | FILE *grubConf; |
2761 | char *line = NULL; |
2762 | size_t res = 0, len = 0; |
2763 | |
2764 | if (!path) |
2765 | return 1; |
2766 | if (!lbaPtr) |
2767 | return 1; |
2768 | |
2769 | grubConf = fopen(path, "r"); |
2770 | if (!grubConf) |
2771 | return 1; |
2772 | |
2773 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2774 | if (line[res - 1] == '\n') |
2775 | line[res - 1] = '\0'; |
2776 | else if (len > res) |
2777 | line[res] = '\0'; |
2778 | else { |
2779 | line = realloc(line, res + 1); |
2780 | line[res] = '\0'; |
2781 | } |
2782 | |
2783 | if (!strncmp(line, "setup", 5)) { |
2784 | if (strstr(line, "--force-lba")) { |
2785 | *lbaPtr = 1; |
2786 | } else { |
2787 | *lbaPtr = 0; |
2788 | } |
2789 | dbgPrintf("lba: %i\n", *lbaPtr); |
2790 | break; |
2791 | } |
2792 | } |
2793 | |
2794 | free(line); |
2795 | fclose(grubConf); |
2796 | return 0; |
2797 | } |
2798 | |
2799 | int suseGrubConfGetInstallDevice(const char *path, char **devicePtr) |
2800 | { |
2801 | FILE *grubConf; |
2802 | char *line = NULL; |
2803 | size_t res = 0, len = 0; |
2804 | char *lastParamPtr = NULL; |
2805 | char *secLastParamPtr = NULL; |
2806 | char installDeviceNumber = '\0'; |
2807 | char *bounds = NULL; |
2808 | |
2809 | if (!path) |
2810 | return 1; |
2811 | if (!devicePtr) |
2812 | return 1; |
2813 | |
2814 | grubConf = fopen(path, "r"); |
2815 | if (!grubConf) |
2816 | return 1; |
2817 | |
2818 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2819 | if (strncmp(line, "setup", 5)) |
2820 | continue; |
2821 | |
2822 | if (line[res - 1] == '\n') |
2823 | line[res - 1] = '\0'; |
2824 | else if (len > res) |
2825 | line[res] = '\0'; |
2826 | else { |
2827 | line = realloc(line, res + 1); |
2828 | line[res] = '\0'; |
2829 | } |
2830 | |
2831 | lastParamPtr = bounds = line + res; |
2832 | |
2833 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ |
2834 | while (!isspace(*lastParamPtr)) |
2835 | lastParamPtr--; |
2836 | lastParamPtr++; |
2837 | |
2838 | secLastParamPtr = lastParamPtr - 2; |
2839 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); |
2840 | |
2841 | if (lastParamPtr + 3 > bounds) { |
2842 | dbgPrintf("lastParamPtr going over boundary"); |
2843 | fclose(grubConf); |
2844 | free(line); |
2845 | return 1; |
2846 | } |
2847 | if (!strncmp(lastParamPtr, "(hd", 3)) |
2848 | lastParamPtr += 3; |
2849 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); |
2850 | |
2851 | /* |
2852 | * Second last parameter will decide wether last parameter is |
2853 | * an IMAGE_DEVICE or INSTALL_DEVICE |
2854 | */ |
2855 | while (!isspace(*secLastParamPtr)) |
2856 | secLastParamPtr--; |
2857 | secLastParamPtr++; |
2858 | |
2859 | if (secLastParamPtr + 3 > bounds) { |
2860 | dbgPrintf("secLastParamPtr going over boundary"); |
2861 | fclose(grubConf); |
2862 | free(line); |
2863 | return 1; |
2864 | } |
2865 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); |
2866 | if (!strncmp(secLastParamPtr, "(hd", 3)) { |
2867 | secLastParamPtr += 3; |
2868 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); |
2869 | installDeviceNumber = *secLastParamPtr; |
2870 | } else { |
2871 | installDeviceNumber = *lastParamPtr; |
2872 | } |
2873 | |
2874 | *devicePtr = malloc(6); |
2875 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); |
2876 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); |
2877 | fclose(grubConf); |
2878 | free(line); |
2879 | return 0; |
2880 | } |
2881 | |
2882 | free(line); |
2883 | fclose(grubConf); |
2884 | return 1; |
2885 | } |
2886 | |
2887 | int grubGetBootFromDeviceMap(const char *device, char **bootPtr) |
2888 | { |
2889 | FILE *deviceMap; |
2890 | char *line = NULL; |
2891 | size_t res = 0, len = 0; |
2892 | char *devicePtr; |
2893 | char *bounds = NULL; |
2894 | const char *path; |
2895 | const static char default_path[] = "/boot/grub/device.map"; |
2896 | |
2897 | if (!device) |
2898 | return 1; |
2899 | if (!bootPtr) |
2900 | return 1; |
2901 | |
2902 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) |
2903 | path = default_path; |
2904 | |
2905 | dbgPrintf("opening grub device.map file from: %s\n", path); |
2906 | deviceMap = fopen(path, "r"); |
2907 | if (!deviceMap) |
2908 | return 1; |
2909 | |
2910 | while ((res = getline(&line, &len, deviceMap)) != -1) { |
2911 | if (!strncmp(line, "#", 1)) |
2912 | continue; |
2913 | |
2914 | if (line[res - 1] == '\n') |
2915 | line[res - 1] = '\0'; |
2916 | else if (len > res) |
2917 | line[res] = '\0'; |
2918 | else { |
2919 | line = realloc(line, res + 1); |
2920 | line[res] = '\0'; |
2921 | } |
2922 | |
2923 | devicePtr = line; |
2924 | bounds = line + res; |
2925 | |
2926 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) |
2927 | devicePtr++; |
2928 | dbgPrintf("device: %s\n", devicePtr); |
2929 | |
2930 | if (!strncmp(devicePtr, device, strlen(device))) { |
2931 | devicePtr += strlen(device); |
2932 | while (isspace(*devicePtr) |
2933 | && ((devicePtr + 1) <= bounds)) |
2934 | devicePtr++; |
2935 | |
2936 | *bootPtr = strdup(devicePtr); |
2937 | break; |
2938 | } |
2939 | } |
2940 | |
2941 | free(line); |
2942 | fclose(deviceMap); |
2943 | return 0; |
2944 | } |
2945 | |
2946 | int suseGrubConfGetBoot(const char *path, char **bootPtr) |
2947 | { |
2948 | char *grubDevice; |
2949 | |
2950 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) |
2951 | dbgPrintf("error looking for grub installation device\n"); |
2952 | else |
2953 | dbgPrintf("grubby installation device: %s\n", grubDevice); |
2954 | |
2955 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) |
2956 | dbgPrintf("error looking for grub boot device\n"); |
2957 | else |
2958 | dbgPrintf("grubby boot device: %s\n", *bootPtr); |
2959 | |
2960 | free(grubDevice); |
2961 | return 0; |
2962 | } |
2963 | |
2964 | int parseSuseGrubConf(int *lbaPtr, char **bootPtr) |
2965 | { |
2966 | /* |
2967 | * This SuSE grub configuration file at this location is not your |
2968 | * average grub configuration file, but instead the grub commands |
2969 | * used to setup grub on that system. |
2970 | */ |
2971 | const char *path; |
2972 | const static char default_path[] = "/etc/grub.conf"; |
2973 | |
2974 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) |
2975 | path = default_path; |
2976 | |
2977 | if (!isSuseGrubConf(path)) |
2978 | return 1; |
2979 | |
2980 | if (lbaPtr) { |
2981 | *lbaPtr = 0; |
2982 | if (suseGrubConfGetLba(path, lbaPtr)) |
2983 | return 1; |
2984 | } |
2985 | |
2986 | if (bootPtr) { |
2987 | *bootPtr = NULL; |
2988 | suseGrubConfGetBoot(path, bootPtr); |
2989 | } |
2990 | |
2991 | return 0; |
2992 | } |
2993 | |
2994 | int parseSysconfigGrub(int *lbaPtr, char **bootPtr) |
2995 | { |
2996 | FILE *in; |
2997 | char buf[1024]; |
2998 | char *chptr; |
2999 | char *start; |
3000 | char *param; |
3001 | |
3002 | in = fopen("/etc/sysconfig/grub", "r"); |
3003 | if (!in) |
3004 | return 1; |
3005 | |
3006 | if (lbaPtr) |
3007 | *lbaPtr = 0; |
3008 | if (bootPtr) |
3009 | *bootPtr = NULL; |
3010 | |
3011 | while (fgets(buf, sizeof(buf), in)) { |
3012 | start = buf; |
3013 | while (isspace(*start)) |
3014 | start++; |
3015 | if (*start == '#') |
3016 | continue; |
3017 | |
3018 | chptr = strchr(start, '='); |
3019 | if (!chptr) |
3020 | continue; |
3021 | chptr--; |
3022 | while (*chptr && isspace(*chptr)) |
3023 | chptr--; |
3024 | chptr++; |
3025 | *chptr = '\0'; |
3026 | |
3027 | param = chptr + 1; |
3028 | while (*param && isspace(*param)) |
3029 | param++; |
3030 | if (*param == '=') { |
3031 | param++; |
3032 | while (*param && isspace(*param)) |
3033 | param++; |
3034 | } |
3035 | |
3036 | chptr = param; |
3037 | while (*chptr && !isspace(*chptr)) |
3038 | chptr++; |
3039 | *chptr = '\0'; |
3040 | |
3041 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) |
3042 | *lbaPtr = 1; |
3043 | else if (!strcmp(start, "boot") && bootPtr) |
3044 | *bootPtr = strdup(param); |
3045 | } |
3046 | |
3047 | fclose(in); |
3048 | |
3049 | return 0; |
3050 | } |
3051 | |
3052 | void dumpSysconfigGrub(void) |
3053 | { |
3054 | char *boot = NULL; |
3055 | int lba; |
3056 | |
3057 | if (isSuseSystem()) { |
3058 | if (parseSuseGrubConf(&lba, &boot)) { |
3059 | free(boot); |
3060 | return; |
3061 | } |
3062 | } else { |
3063 | if (parseSysconfigGrub(&lba, &boot)) { |
3064 | free(boot); |
3065 | return; |
3066 | } |
3067 | } |
3068 | |
3069 | if (lba) |
3070 | printf("lba\n"); |
3071 | if (boot) { |
3072 | printf("boot=%s\n", boot); |
3073 | free(boot); |
3074 | } |
3075 | } |
3076 | |
3077 | int displayInfo(struct grubConfig *config, char *kernel, const char *prefix) |
3078 | { |
3079 | int i = 0; |
3080 | struct singleEntry *entry; |
3081 | struct singleLine *line; |
3082 | |
3083 | entry = findEntryByPath(config, kernel, prefix, &i); |
3084 | if (!entry) { |
3085 | fprintf(stderr, _("grubby: kernel not found\n")); |
3086 | return 1; |
3087 | } |
3088 | |
3089 | /* this is a horrible hack to support /etc/sysconfig/grub; there must |
3090 | be a better way */ |
3091 | if (config->cfi == &grubConfigType) { |
3092 | dumpSysconfigGrub(); |
3093 | } else { |
3094 | line = getLineByType(LT_BOOT, config->theLines); |
3095 | if (line && line->numElements >= 1) { |
3096 | printf("boot=%s\n", line->elements[1].item); |
3097 | } |
3098 | |
3099 | line = getLineByType(LT_LBA, config->theLines); |
3100 | if (line) |
3101 | printf("lba\n"); |
3102 | } |
3103 | |
3104 | displayEntry(entry, prefix, i); |
3105 | |
3106 | i++; |
3107 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { |
3108 | displayEntry(entry, prefix, i); |
3109 | i++; |
3110 | } |
3111 | |
3112 | return 0; |
3113 | } |
3114 | |
3115 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
3116 | struct singleLine *tmplLine, |
3117 | struct singleLine *prevLine, |
3118 | const char *val, struct configFileInfo *cfi) |
3119 | { |
3120 | struct singleLine *newLine = lineDup(tmplLine); |
3121 | |
3122 | if (isEfi && cfi == &grub2ConfigType) { |
3123 | enum lineType_e old = newLine->type; |
3124 | newLine->type = preferredLineType(newLine->type, cfi); |
3125 | if (old != newLine->type) |
3126 | newLine->elements[0].item = |
3127 | getKeyByType(newLine->type, cfi); |
3128 | } |
3129 | |
3130 | if (val) { |
3131 | /* override the inherited value with our own. |
3132 | * This is a little weak because it only applies to elements[1] |
3133 | */ |
3134 | if (newLine->numElements > 1) |
3135 | removeElement(newLine, 1); |
3136 | insertElement(newLine, val, 1, cfi); |
3137 | |
3138 | /* but try to keep the rootspec from the template... sigh */ |
3139 | if (tmplLine-> |
3140 | type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD | |
3141 | LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 | |
3142 | LT_INITRD_16)) { |
3143 | char *rootspec = |
3144 | getRootSpecifier(tmplLine->elements[1].item); |
3145 | if (rootspec != NULL) { |
3146 | free(newLine->elements[1].item); |
3147 | newLine->elements[1].item = |
3148 | sdupprintf("%s%s", rootspec, val); |
3149 | } |
3150 | } |
3151 | } |
3152 | |
3153 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? |
3154 | newLine->elements[0].item : ""); |
3155 | |
3156 | if (!entry->lines) { |
3157 | /* first one on the list */ |
3158 | entry->lines = newLine; |
3159 | } else if (prevLine) { |
3160 | /* add after prevLine */ |
3161 | newLine->next = prevLine->next; |
3162 | prevLine->next = newLine; |
3163 | } |
3164 | |
3165 | return newLine; |
3166 | } |
3167 | |
3168 | /* val may be NULL */ |
3169 | struct singleLine *addLine(struct singleEntry *entry, |
3170 | struct configFileInfo *cfi, |
3171 | enum lineType_e type, char *defaultIndent, |
3172 | const char *val) |
3173 | { |
3174 | struct singleLine *line, *prev; |
3175 | struct keywordTypes *kw; |
3176 | struct singleLine tmpl; |
3177 | |
3178 | /* NB: This function shouldn't allocate items on the heap, rather on |
3179 | * the stack since it calls addLineTmpl which will make copies. |
3180 | */ |
3181 | if (type == LT_TITLE && cfi->titleBracketed) { |
3182 | /* we're doing a bracketed title (zipl) */ |
3183 | tmpl.type = type; |
3184 | tmpl.numElements = 1; |
3185 | tmpl.elements = alloca(sizeof(*tmpl.elements)); |
3186 | tmpl.elements[0].item = alloca(strlen(val) + 3); |
3187 | sprintf(tmpl.elements[0].item, "[%s]", val); |
3188 | tmpl.elements[0].indent = ""; |
3189 | val = NULL; |
3190 | } else if (type == LT_MENUENTRY) { |
3191 | char *lineend = "--class gnu-linux --class gnu --class os {"; |
3192 | if (!val) { |
3193 | fprintf(stderr, |
3194 | "Line type LT_MENUENTRY requires a value\n"); |
3195 | abort(); |
3196 | } |
3197 | kw = getKeywordByType(type, cfi); |
3198 | if (!kw) { |
3199 | fprintf(stderr, |
3200 | "Looking up keyword for unknown type %d\n", |
3201 | type); |
3202 | abort(); |
3203 | } |
3204 | tmpl.indent = ""; |
3205 | tmpl.type = type; |
3206 | tmpl.numElements = 3; |
3207 | tmpl.elements = |
3208 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3209 | tmpl.elements[0].item = kw->key; |
3210 | tmpl.elements[0].indent = alloca(2); |
3211 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3212 | tmpl.elements[1].item = (char *)val; |
3213 | tmpl.elements[1].indent = alloca(2); |
3214 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); |
3215 | tmpl.elements[2].item = alloca(strlen(lineend) + 1); |
3216 | strcpy(tmpl.elements[2].item, lineend); |
3217 | tmpl.elements[2].indent = ""; |
3218 | } else { |
3219 | kw = getKeywordByType(type, cfi); |
3220 | if (!kw) { |
3221 | fprintf(stderr, |
3222 | "Looking up keyword for unknown type %d\n", |
3223 | type); |
3224 | abort(); |
3225 | } |
3226 | tmpl.type = type; |
3227 | tmpl.numElements = val ? 2 : 1; |
3228 | tmpl.elements = |
3229 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3230 | tmpl.elements[0].item = kw->key; |
3231 | tmpl.elements[0].indent = alloca(2); |
3232 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3233 | if (val) { |
3234 | tmpl.elements[1].item = (char *)val; |
3235 | tmpl.elements[1].indent = ""; |
3236 | } |
3237 | } |
3238 | |
3239 | /* The last non-empty line gives us the indention to us and the line |
3240 | * to insert after. Note that comments are considered empty lines, |
3241 | * which may not be ideal? If there are no lines or we are looking at |
3242 | * the first line, we use defaultIndent (the first line is normally |
3243 | * indented differently from the rest) */ |
3244 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
3245 | if (line->numElements) |
3246 | prev = line; |
3247 | /* fall back on the last line if prev isn't otherwise set */ |
3248 | if (!line->next && !prev) |
3249 | prev = line; |
3250 | } |
3251 | |
3252 | struct singleLine *menuEntry; |
3253 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); |
3254 | if (tmpl.type == LT_ENTRY_END) { |
3255 | if (menuEntry) |
3256 | tmpl.indent = menuEntry->indent; |
3257 | else |
3258 | tmpl.indent = defaultIndent ? : ""; |
3259 | } else if (tmpl.type != LT_MENUENTRY) { |
3260 | if (menuEntry) |
3261 | tmpl.indent = "\t"; |
3262 | else if (prev == entry->lines) |
3263 | tmpl.indent = defaultIndent ? : ""; |
3264 | else |
3265 | tmpl.indent = prev->indent; |
3266 | } |
3267 | |
3268 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
3269 | } |
3270 | |
3271 | void removeLine(struct singleEntry *entry, struct singleLine *line) |
3272 | { |
3273 | struct singleLine *prev; |
3274 | int i; |
3275 | |
3276 | for (i = 0; i < line->numElements; i++) { |
3277 | free(line->elements[i].item); |
3278 | free(line->elements[i].indent); |
3279 | } |
3280 | free(line->elements); |
3281 | free(line->indent); |
3282 | |
3283 | if (line == entry->lines) { |
3284 | entry->lines = line->next; |
3285 | } else { |
3286 | prev = entry->lines; |
3287 | while (prev->next != line) |
3288 | prev = prev->next; |
3289 | prev->next = line->next; |
3290 | } |
3291 | |
3292 | free(line); |
3293 | } |
3294 | |
3295 | static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi) |
3296 | { |
3297 | struct singleLine newLine = { |
3298 | .indent = tmplLine->indent, |
3299 | .type = tmplLine->type, |
3300 | .next = tmplLine->next, |
3301 | }; |
3302 | int firstQuotedItem = -1; |
3303 | int quoteLen = 0; |
3304 | int j; |
3305 | int element = 0; |
3306 | char *c; |
3307 | |
3308 | c = malloc(strlen(tmplLine->elements[0].item) + 1); |
3309 | strcpy(c, tmplLine->elements[0].item); |
3310 | insertElement(&newLine, c, element++, cfi); |
3311 | free(c); |
3312 | c = NULL; |
3313 | |
3314 | for (j = 1; j < tmplLine->numElements; j++) { |
3315 | if (firstQuotedItem == -1) { |
3316 | quoteLen += strlen(tmplLine->elements[j].item); |
3317 | |
3318 | if (isquote(tmplLine->elements[j].item[0])) { |
3319 | firstQuotedItem = j; |
3320 | quoteLen += |
3321 | strlen(tmplLine->elements[j].indent); |
3322 | } else { |
3323 | c = malloc(quoteLen + 1); |
3324 | strcpy(c, tmplLine->elements[j].item); |
3325 | insertElement(&newLine, c, element++, cfi); |
3326 | free(c); |
3327 | quoteLen = 0; |
3328 | } |
3329 | } else { |
3330 | int itemlen = strlen(tmplLine->elements[j].item); |
3331 | quoteLen += itemlen; |
3332 | quoteLen += strlen(tmplLine->elements[j].indent); |
3333 | |
3334 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { |
3335 | c = malloc(quoteLen + 1); |
3336 | c[0] = '\0'; |
3337 | for (int i = firstQuotedItem; i < j + 1; i++) { |
3338 | strcat(c, tmplLine->elements[i].item); |
3339 | strcat(c, tmplLine->elements[i].indent); |
3340 | } |
3341 | insertElement(&newLine, c, element++, cfi); |
3342 | free(c); |
3343 | |
3344 | firstQuotedItem = -1; |
3345 | quoteLen = 0; |
3346 | } |
3347 | } |
3348 | } |
3349 | while (tmplLine->numElements) |
3350 | removeElement(tmplLine, 0); |
3351 | if (tmplLine->elements) |
3352 | free(tmplLine->elements); |
3353 | |
3354 | tmplLine->numElements = newLine.numElements; |
3355 | tmplLine->elements = newLine.elements; |
3356 | } |
3357 | |
3358 | static void insertElement(struct singleLine *line, |
3359 | const char *item, int insertHere, |
3360 | struct configFileInfo *cfi) |
3361 | { |
3362 | struct keywordTypes *kw; |
3363 | char indent[2] = ""; |
3364 | |
3365 | /* sanity check */ |
3366 | if (insertHere > line->numElements) { |
3367 | dbgPrintf |
3368 | ("insertElement() adjusting insertHere from %d to %d\n", |
3369 | insertHere, line->numElements); |
3370 | insertHere = line->numElements; |
3371 | } |
3372 | |
3373 | line->elements = realloc(line->elements, (line->numElements + 1) * |
3374 | sizeof(*line->elements)); |
3375 | memmove(&line->elements[insertHere + 1], |
3376 | &line->elements[insertHere], |
3377 | (line->numElements - insertHere) * sizeof(*line->elements)); |
3378 | line->elements[insertHere].item = strdup(item); |
3379 | |
3380 | kw = getKeywordByType(line->type, cfi); |
3381 | |
3382 | if (line->numElements == 0) { |
3383 | indent[0] = '\0'; |
3384 | } else if (insertHere == 0) { |
3385 | indent[0] = kw->nextChar; |
3386 | } else if (kw->separatorChar != '\0') { |
3387 | indent[0] = kw->separatorChar; |
3388 | } else { |
3389 | indent[0] = ' '; |
3390 | } |
3391 | |
3392 | if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') { |
3393 | /* move the end-of-line forward */ |
3394 | line->elements[insertHere].indent = |
3395 | line->elements[insertHere - 1].indent; |
3396 | line->elements[insertHere - 1].indent = strdup(indent); |
3397 | } else { |
3398 | line->elements[insertHere].indent = strdup(indent); |
3399 | } |
3400 | |
3401 | line->numElements++; |
3402 | |
3403 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", |
3404 | line->elements[0].item, |
3405 | line->elements[insertHere].item, |
3406 | line->elements[insertHere].indent, insertHere); |
3407 | } |
3408 | |
3409 | static void removeElement(struct singleLine *line, int removeHere) |
3410 | { |
3411 | int i; |
3412 | |
3413 | /* sanity check */ |
3414 | if (removeHere >= line->numElements) |
3415 | return; |
3416 | |
3417 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, |
3418 | removeHere, line->elements[removeHere].item); |
3419 | |
3420 | free(line->elements[removeHere].item); |
3421 | |
3422 | if (removeHere > 1) { |
3423 | /* previous argument gets this argument's post-indentation */ |
3424 | free(line->elements[removeHere - 1].indent); |
3425 | line->elements[removeHere - 1].indent = |
3426 | line->elements[removeHere].indent; |
3427 | } else { |
3428 | free(line->elements[removeHere].indent); |
3429 | } |
3430 | |
3431 | /* now collapse the array, but don't bother to realloc smaller */ |
3432 | for (i = removeHere; i < line->numElements - 1; i++) |
3433 | line->elements[i] = line->elements[i + 1]; |
3434 | |
3435 | line->numElements--; |
3436 | } |
3437 | |
3438 | int argMatch(const char *one, const char *two) |
3439 | { |
3440 | char *first, *second; |
3441 | char *chptr; |
3442 | |
3443 | first = strcpy(alloca(strlen(one) + 1), one); |
3444 | second = strcpy(alloca(strlen(two) + 1), two); |
3445 | |
3446 | chptr = strchr(first, '='); |
3447 | if (chptr) |
3448 | *chptr = '\0'; |
3449 | |
3450 | chptr = strchr(second, '='); |
3451 | if (chptr) |
3452 | *chptr = '\0'; |
3453 | |
3454 | return strcmp(first, second); |
3455 | } |
3456 | |
3457 | int updateActualImage(struct grubConfig *cfg, const char *image, |
3458 | const char *prefix, const char *addArgs, |
3459 | const char *removeArgs, int multibootArgs) |
3460 | { |
3461 | struct singleEntry *entry; |
3462 | struct singleLine *line, *rootLine; |
3463 | int index = 0; |
3464 | int i, k; |
3465 | const char **newArgs, **oldArgs; |
3466 | const char **arg; |
3467 | int useKernelArgs, useRoot; |
3468 | int firstElement; |
3469 | int *usedElements; |
3470 | int doreplace; |
3471 | |
3472 | if (!image) |
3473 | return 0; |
3474 | |
3475 | if (!addArgs) { |
3476 | newArgs = malloc(sizeof(*newArgs)); |
3477 | *newArgs = NULL; |
3478 | } else { |
3479 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { |
3480 | fprintf(stderr, |
3481 | _("grubby: error separating arguments '%s'\n"), |
3482 | addArgs); |
3483 | return 1; |
3484 | } |
3485 | } |
3486 | |
3487 | if (!removeArgs) { |
3488 | oldArgs = malloc(sizeof(*oldArgs)); |
3489 | *oldArgs = NULL; |
3490 | } else { |
3491 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { |
3492 | fprintf(stderr, |
3493 | _("grubby: error separating arguments '%s'\n"), |
3494 | removeArgs); |
3495 | free(newArgs); |
3496 | return 1; |
3497 | } |
3498 | } |
3499 | |
3500 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3501 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); |
3502 | |
3503 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3504 | && !multibootArgs); |
3505 | |
3506 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3507 | |
3508 | if (multibootArgs && !entry->multiboot) |
3509 | continue; |
3510 | |
3511 | /* Determine where to put the args. If this config supports |
3512 | * LT_KERNELARGS, use that. Otherwise use |
3513 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. |
3514 | */ |
3515 | if (useKernelArgs) { |
3516 | line = getLineByType(LT_KERNELARGS, entry->lines); |
3517 | if (!line) { |
3518 | /* no LT_KERNELARGS, need to add it */ |
3519 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, |
3520 | cfg->secondaryIndent, NULL); |
3521 | } |
3522 | firstElement = 1; |
3523 | |
3524 | } else if (multibootArgs) { |
3525 | line = getLineByType(LT_HYPER, entry->lines); |
3526 | if (!line) { |
3527 | /* a multiboot entry without LT_HYPER? */ |
3528 | continue; |
3529 | } |
3530 | firstElement = 2; |
3531 | |
3532 | } else { |
3533 | line = |
3534 | getLineByType(LT_KERNEL | LT_MBMODULE | |
3535 | LT_KERNEL_EFI | LT_KERNEL_16, |
3536 | entry->lines); |
3537 | if (!line) { |
3538 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ |
3539 | continue; |
3540 | } |
3541 | firstElement = 2; |
3542 | } |
3543 | |
3544 | /* handle the elilo case which does: |
3545 | * append="hypervisor args -- kernel args" |
3546 | */ |
3547 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { |
3548 | /* this is a multiboot entry, make sure there's |
3549 | * -- on the args line |
3550 | */ |
3551 | for (i = firstElement; i < line->numElements; i++) { |
3552 | if (!strcmp(line->elements[i].item, "--")) |
3553 | break; |
3554 | } |
3555 | if (i == line->numElements) { |
3556 | /* assume all existing args are kernel args, |
3557 | * prepend -- to make it official |
3558 | */ |
3559 | insertElement(line, "--", firstElement, |
3560 | cfg->cfi); |
3561 | i = firstElement; |
3562 | } |
3563 | if (!multibootArgs) { |
3564 | /* kernel args start after the -- */ |
3565 | firstElement = i + 1; |
3566 | } |
3567 | } else if (cfg->cfi->mbConcatArgs) { |
3568 | /* this is a non-multiboot entry, remove hyper args */ |
3569 | for (i = firstElement; i < line->numElements; i++) { |
3570 | if (!strcmp(line->elements[i].item, "--")) |
3571 | break; |
3572 | } |
3573 | if (i < line->numElements) { |
3574 | /* remove args up to -- */ |
3575 | while (strcmp |
3576 | (line->elements[firstElement].item, |
3577 | "--")) |
3578 | removeElement(line, firstElement); |
3579 | /* remove -- */ |
3580 | removeElement(line, firstElement); |
3581 | } |
3582 | } |
3583 | |
3584 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3585 | |
3586 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3587 | |
3588 | doreplace = 1; |
3589 | for (i = firstElement; i < line->numElements; i++) { |
3590 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3591 | !strcmp(line->elements[i].item, "--")) { |
3592 | /* reached the end of hyper args, insert here */ |
3593 | doreplace = 0; |
3594 | break; |
3595 | } |
3596 | if (usedElements[i]) |
3597 | continue; |
3598 | if (!argMatch(line->elements[i].item, *arg)) { |
3599 | usedElements[i] = 1; |
3600 | break; |
3601 | } |
3602 | } |
3603 | |
3604 | if (i < line->numElements && doreplace) { |
3605 | /* direct replacement */ |
3606 | free(line->elements[i].item); |
3607 | line->elements[i].item = strdup(*arg); |
3608 | |
3609 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3610 | /* root= replacement */ |
3611 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3612 | if (rootLine) { |
3613 | free(rootLine->elements[1].item); |
3614 | rootLine->elements[1].item = |
3615 | strdup(*arg + 5); |
3616 | } else { |
3617 | rootLine = |
3618 | addLine(entry, cfg->cfi, LT_ROOT, |
3619 | cfg->secondaryIndent, |
3620 | *arg + 5); |
3621 | } |
3622 | } |
3623 | |
3624 | else { |
3625 | /* insert/append */ |
3626 | insertElement(line, *arg, i, cfg->cfi); |
3627 | usedElements = |
3628 | realloc(usedElements, |
3629 | line->numElements * |
3630 | sizeof(*usedElements)); |
3631 | memmove(&usedElements[i + 1], &usedElements[i], |
3632 | line->numElements - i - 1); |
3633 | usedElements[i] = 1; |
3634 | |
3635 | /* if we updated a root= here even though |
3636 | * there is a LT_ROOT available we need to |
3637 | * remove the LT_ROOT entry (this will happen |
3638 | * if we switch from a device to a label) */ |
3639 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3640 | rootLine = |
3641 | getLineByType(LT_ROOT, |
3642 | entry->lines); |
3643 | if (rootLine) |
3644 | removeLine(entry, rootLine); |
3645 | } |
3646 | } |
3647 | } |
3648 | |
3649 | free(usedElements); |
3650 | |
3651 | for (arg = oldArgs; *arg; arg++) { |
3652 | for (i = firstElement; i < line->numElements; i++) { |
3653 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3654 | !strcmp(line->elements[i].item, "--")) |
3655 | /* reached the end of hyper args, stop here */ |
3656 | break; |
3657 | if (!argMatch(line->elements[i].item, *arg)) { |
3658 | removeElement(line, i); |
3659 | break; |
3660 | } |
3661 | } |
3662 | /* handle removing LT_ROOT line too */ |
3663 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3664 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3665 | if (rootLine) |
3666 | removeLine(entry, rootLine); |
3667 | } |
3668 | } |
3669 | |
3670 | if (line->numElements == 1) { |
3671 | /* don't need the line at all (note it has to be a |
3672 | LT_KERNELARGS for this to happen */ |
3673 | removeLine(entry, line); |
3674 | } |
3675 | } |
3676 | |
3677 | free(newArgs); |
3678 | free(oldArgs); |
3679 | |
3680 | return 0; |
3681 | } |
3682 | |
3683 | int updateImage(struct grubConfig *cfg, const char *image, |
3684 | const char *prefix, const char *addArgs, |
3685 | const char *removeArgs, |
3686 | const char *addMBArgs, const char *removeMBArgs) |
3687 | { |
3688 | int rc = 0; |
3689 | |
3690 | if (!image) |
3691 | return rc; |
3692 | |
3693 | /* update the main args first... */ |
3694 | if (addArgs || removeArgs) |
3695 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, |
3696 | 0); |
3697 | if (rc) |
3698 | return rc; |
3699 | |
3700 | /* and now any multiboot args */ |
3701 | if (addMBArgs || removeMBArgs) |
3702 | rc = updateActualImage(cfg, image, prefix, addMBArgs, |
3703 | removeMBArgs, 1); |
3704 | return rc; |
3705 | } |
3706 | |
3707 | int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel, |
3708 | const char *image, const char *prefix, const char *initrd, |
3709 | const char *title) |
3710 | { |
3711 | struct singleEntry *entry; |
3712 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3713 | int index = 0; |
3714 | |
3715 | if (!image) |
3716 | return 0; |
3717 | |
3718 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3719 | kernelLine = getLineByType(LT_MBMODULE, entry->lines); |
3720 | if (!kernelLine) |
3721 | continue; |
3722 | |
3723 | /* if title is supplied, the entry's title must match it. */ |
3724 | if (title) { |
3725 | char *linetitle; |
3726 | |
3727 | line = |
3728 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3729 | entry->lines); |
3730 | if (!line) |
3731 | continue; |
3732 | |
3733 | linetitle = extractTitle(cfg, line); |
3734 | if (!linetitle) |
3735 | continue; |
3736 | if (strcmp(title, linetitle)) { |
3737 | free(linetitle); |
3738 | continue; |
3739 | } |
3740 | free(linetitle); |
3741 | } |
3742 | |
3743 | if (prefix) { |
3744 | int prefixLen = strlen(prefix); |
3745 | if (!strncmp(initrd, prefix, prefixLen)) |
3746 | initrd += prefixLen; |
3747 | } |
3748 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3749 | if (endLine) |
3750 | removeLine(entry, endLine); |
3751 | line = |
3752 | addLine(entry, cfg->cfi, |
3753 | preferredLineType(LT_MBMODULE, cfg->cfi), |
3754 | kernelLine->indent, initrd); |
3755 | if (!line) |
3756 | return 1; |
3757 | if (endLine) { |
3758 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3759 | if (!line) |
3760 | return 1; |
3761 | } |
3762 | |
3763 | break; |
3764 | } |
3765 | |
3766 | return 0; |
3767 | } |
3768 | |
3769 | int updateInitrd(struct grubConfig *cfg, const char *image, |
3770 | const char *prefix, const char *initrd, const char *title) |
3771 | { |
3772 | struct singleEntry *entry; |
3773 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3774 | int index = 0; |
3775 | |
3776 | if (!image) |
3777 | return 0; |
3778 | |
3779 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3780 | kernelLine = |
3781 | getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16, |
3782 | entry->lines); |
3783 | if (!kernelLine) |
3784 | continue; |
3785 | |
3786 | /* if title is supplied, the entry's title must match it. */ |
3787 | if (title) { |
3788 | char *linetitle; |
3789 | |
3790 | line = |
3791 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3792 | entry->lines); |
3793 | if (!line) |
3794 | continue; |
3795 | |
3796 | linetitle = extractTitle(cfg, line); |
3797 | if (!linetitle) |
3798 | continue; |
3799 | if (strcmp(title, linetitle)) { |
3800 | free(linetitle); |
3801 | continue; |
3802 | } |
3803 | free(linetitle); |
3804 | } |
3805 | |
3806 | line = |
3807 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
3808 | entry->lines); |
3809 | if (line) |
3810 | removeLine(entry, line); |
3811 | if (prefix) { |
3812 | int prefixLen = strlen(prefix); |
3813 | if (!strncmp(initrd, prefix, prefixLen)) |
3814 | initrd += prefixLen; |
3815 | } |
3816 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3817 | if (endLine) |
3818 | removeLine(entry, endLine); |
3819 | enum lineType_e lt; |
3820 | switch (kernelLine->type) { |
3821 | case LT_KERNEL: |
3822 | lt = LT_INITRD; |
3823 | break; |
3824 | case LT_KERNEL_EFI: |
3825 | lt = LT_INITRD_EFI; |
3826 | break; |
3827 | case LT_KERNEL_16: |
3828 | lt = LT_INITRD_16; |
3829 | break; |
3830 | default: |
3831 | lt = preferredLineType(LT_INITRD, cfg->cfi); |
3832 | } |
3833 | line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd); |
3834 | if (!line) |
3835 | return 1; |
3836 | if (endLine) { |
3837 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3838 | if (!line) |
3839 | return 1; |
3840 | } |
3841 | |
3842 | break; |
3843 | } |
3844 | |
3845 | return 0; |
3846 | } |
3847 | |
3848 | int checkDeviceBootloader(const char *device, const unsigned char *boot) |
3849 | { |
3850 | int fd; |
3851 | unsigned char bootSect[512]; |
3852 | int offset; |
3853 | |
3854 | fd = open(device, O_RDONLY); |
3855 | if (fd < 0) { |
3856 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
3857 | device, strerror(errno)); |
3858 | return 1; |
3859 | } |
3860 | |
3861 | if (read(fd, bootSect, 512) != 512) { |
3862 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
3863 | device, strerror(errno)); |
3864 | return 1; |
3865 | } |
3866 | close(fd); |
3867 | |
3868 | /* first three bytes should match, a jmp short should be in there */ |
3869 | if (memcmp(boot, bootSect, 3)) |
3870 | return 0; |
3871 | |
3872 | if (boot[1] == JMP_SHORT_OPCODE) { |
3873 | offset = boot[2] + 2; |
3874 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { |
3875 | offset = (boot[3] << 8) + boot[2] + 2; |
3876 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
3877 | offset = boot[1] + 2; |
3878 | /* |
3879 | * it looks like grub, when copying stage1 into the mbr, |
3880 | * patches stage1 right after the JMP location, replacing |
3881 | * other instructions such as JMPs for NOOPs. So, relax the |
3882 | * check a little bit by skipping those different bytes. |
3883 | */ |
3884 | if ((bootSect[offset + 1] == NOOP_OPCODE) |
3885 | && (bootSect[offset + 2] == NOOP_OPCODE)) { |
3886 | offset = offset + 3; |
3887 | } |
3888 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
3889 | offset = (boot[2] << 8) + boot[1] + 2; |
3890 | } else { |
3891 | return 0; |
3892 | } |
3893 | |
3894 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) |
3895 | return 0; |
3896 | |
3897 | return 2; |
3898 | } |
3899 | |
3900 | int checkLiloOnRaid(char *mdDev, const unsigned char *boot) |
3901 | { |
3902 | int fd; |
3903 | char buf[65536]; |
3904 | char *end; |
3905 | char *chptr; |
3906 | char *chptr2; |
3907 | int rc; |
3908 | |
3909 | /* it's on raid; we need to parse /proc/mdstat and check all of the |
3910 | *raw* devices listed in there */ |
3911 | |
3912 | if (!strncmp(mdDev, "/dev/", 5)) |
3913 | mdDev += 5; |
3914 | |
3915 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { |
3916 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), |
3917 | strerror(errno)); |
3918 | return 2; |
3919 | } |
3920 | |
3921 | rc = read(fd, buf, sizeof(buf) - 1); |
3922 | if (rc < 0 || rc == (sizeof(buf) - 1)) { |
3923 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), |
3924 | strerror(errno)); |
3925 | close(fd); |
3926 | return 2; |
3927 | } |
3928 | close(fd); |
3929 | buf[rc] = '\0'; |
3930 | |
3931 | chptr = buf; |
3932 | while (*chptr) { |
3933 | end = strchr(chptr, '\n'); |
3934 | if (!end) |
3935 | break; |
3936 | *end = '\0'; |
3937 | |
3938 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && |
3939 | chptr[strlen(mdDev)] == ' ') { |
3940 | |
3941 | /* found the device */ |
3942 | while (*chptr && *chptr != ':') |
3943 | chptr++; |
3944 | chptr++; |
3945 | while (*chptr && isspace(*chptr)) |
3946 | chptr++; |
3947 | |
3948 | /* skip the "active" bit */ |
3949 | while (*chptr && !isspace(*chptr)) |
3950 | chptr++; |
3951 | while (*chptr && isspace(*chptr)) |
3952 | chptr++; |
3953 | |
3954 | /* skip the raid level */ |
3955 | while (*chptr && !isspace(*chptr)) |
3956 | chptr++; |
3957 | while (*chptr && isspace(*chptr)) |
3958 | chptr++; |
3959 | |
3960 | /* everything else is partition stuff */ |
3961 | while (*chptr) { |
3962 | chptr2 = chptr; |
3963 | while (*chptr2 && *chptr2 != '[') |
3964 | chptr2++; |
3965 | if (!*chptr2) |
3966 | break; |
3967 | |
3968 | /* yank off the numbers at the end */ |
3969 | chptr2--; |
3970 | while (isdigit(*chptr2) && chptr2 > chptr) |
3971 | chptr2--; |
3972 | chptr2++; |
3973 | *chptr2 = '\0'; |
3974 | |
3975 | /* Better, now we need the /dev/ back. We're |
3976 | * done with everything before this point, so |
3977 | * we can just put the /dev/ part there. |
3978 | * There will always be room. */ |
3979 | memcpy(chptr - 5, "/dev/", 5); |
3980 | rc = checkDeviceBootloader(chptr - 5, boot); |
3981 | if (rc != 2) { |
3982 | return rc; |
3983 | } |
3984 | |
3985 | chptr = chptr2 + 1; |
3986 | /* skip the [11] bit */ |
3987 | while (*chptr && !isspace(*chptr)) |
3988 | chptr++; |
3989 | /* and move to the next one */ |
3990 | while (*chptr && isspace(*chptr)) |
3991 | chptr++; |
3992 | } |
3993 | |
3994 | /* we're good to go */ |
3995 | return 2; |
3996 | } |
3997 | |
3998 | chptr = end + 1; |
3999 | } |
4000 | |
4001 | fprintf(stderr, |
4002 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), |
4003 | mdDev); |
4004 | return 0; |
4005 | } |
4006 | |
4007 | int checkForLilo(struct grubConfig *config) |
4008 | { |
4009 | int fd; |
4010 | unsigned char boot[512]; |
4011 | struct singleLine *line; |
4012 | |
4013 | for (line = config->theLines; line; line = line->next) |
4014 | if (line->type == LT_BOOT) |
4015 | break; |
4016 | |
4017 | if (!line) { |
4018 | fprintf(stderr, |
4019 | _ |
4020 | ("grubby: no boot line found in lilo configuration\n")); |
4021 | return 1; |
4022 | } |
4023 | |
4024 | if (line->numElements != 2) |
4025 | return 1; |
4026 | |
4027 | fd = open("/boot/boot.b", O_RDONLY); |
4028 | if (fd < 0) { |
4029 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
4030 | "/boot/boot.b", strerror(errno)); |
4031 | return 1; |
4032 | } |
4033 | |
4034 | if (read(fd, boot, 512) != 512) { |
4035 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4036 | "/boot/boot.b", strerror(errno)); |
4037 | return 1; |
4038 | } |
4039 | close(fd); |
4040 | |
4041 | if (!strncmp("/dev/md", line->elements[1].item, 7)) |
4042 | return checkLiloOnRaid(line->elements[1].item, boot); |
4043 | |
4044 | return checkDeviceBootloader(line->elements[1].item, boot); |
4045 | } |
4046 | |
4047 | int checkForGrub2(struct grubConfig *config) |
4048 | { |
4049 | if (!access("/etc/grub.d/", R_OK)) |
4050 | return 2; |
4051 | |
4052 | return 1; |
4053 | } |
4054 | |
4055 | int checkForGrub(struct grubConfig *config) |
4056 | { |
4057 | int fd; |
4058 | unsigned char bootSect[512]; |
4059 | char *boot; |
4060 | int onSuse = isSuseSystem(); |
4061 | |
4062 | if (onSuse) { |
4063 | if (parseSuseGrubConf(NULL, &boot)) |
4064 | return 0; |
4065 | } else { |
4066 | if (parseSysconfigGrub(NULL, &boot)) |
4067 | return 0; |
4068 | } |
4069 | |
4070 | /* assume grub is not installed -- not an error condition */ |
4071 | if (!boot) |
4072 | return 0; |
4073 | |
4074 | fd = open("/boot/grub/stage1", O_RDONLY); |
4075 | if (fd < 0) |
4076 | /* this doesn't exist if grub hasn't been installed */ |
4077 | return 0; |
4078 | |
4079 | if (read(fd, bootSect, 512) != 512) { |
4080 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4081 | "/boot/grub/stage1", strerror(errno)); |
4082 | close(fd); |
4083 | return 1; |
4084 | } |
4085 | close(fd); |
4086 | |
4087 | /* The more elaborate checks do not work on SuSE. The checks done |
4088 | * seem to be reasonble (at least for now), so just return success |
4089 | */ |
4090 | if (onSuse) |
4091 | return 2; |
4092 | |
4093 | return checkDeviceBootloader(boot, bootSect); |
4094 | } |
4095 | |
4096 | int checkForExtLinux(struct grubConfig *config) |
4097 | { |
4098 | int fd; |
4099 | unsigned char bootSect[512]; |
4100 | char *boot; |
4101 | char executable[] = "/boot/extlinux/extlinux"; |
4102 | |
4103 | printf("entered: checkForExtLinux()\n"); |
4104 | |
4105 | if (parseSysconfigGrub(NULL, &boot)) |
4106 | return 0; |
4107 | |
4108 | /* assume grub is not installed -- not an error condition */ |
4109 | if (!boot) |
4110 | return 0; |
4111 | |
4112 | fd = open(executable, O_RDONLY); |
4113 | if (fd < 0) |
4114 | /* this doesn't exist if grub hasn't been installed */ |
4115 | return 0; |
4116 | |
4117 | if (read(fd, bootSect, 512) != 512) { |
4118 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4119 | executable, strerror(errno)); |
4120 | return 1; |
4121 | } |
4122 | close(fd); |
4123 | |
4124 | return checkDeviceBootloader(boot, bootSect); |
4125 | } |
4126 | |
4127 | int checkForYaboot(struct grubConfig *config) |
4128 | { |
4129 | /* |
4130 | * This is a simplistic check that we consider good enough for own puporses |
4131 | * |
4132 | * If we were to properly check if yaboot is *installed* we'd need to: |
4133 | * 1) get the system boot device (LT_BOOT) |
4134 | * 2) considering it's a raw filesystem, check if the yaboot binary matches |
4135 | * the content on the boot device |
4136 | * 3) if not, copy the binary to a temporary file and run "addnote" on it |
4137 | * 4) check again if binary and boot device contents match |
4138 | */ |
4139 | if (!access("/etc/yaboot.conf", R_OK)) |
4140 | return 2; |
4141 | |
4142 | return 1; |
4143 | } |
4144 | |
4145 | int checkForElilo(struct grubConfig *config) |
4146 | { |
4147 | if (!access("/etc/elilo.conf", R_OK)) |
4148 | return 2; |
4149 | |
4150 | return 1; |
4151 | } |
4152 | |
4153 | static char *getRootSpecifier(char *str) |
4154 | { |
4155 | char *idx, *rootspec = NULL; |
4156 | |
4157 | if (*str == '(') { |
4158 | idx = rootspec = strdup(str); |
4159 | while (*idx && (*idx != ')') && (!isspace(*idx))) |
4160 | idx++; |
4161 | *(++idx) = '\0'; |
4162 | } |
4163 | return rootspec; |
4164 | } |
4165 | |
4166 | static char *getInitrdVal(struct grubConfig *config, |
4167 | const char *prefix, struct singleLine *tmplLine, |
4168 | const char *newKernelInitrd, |
4169 | const char **extraInitrds, int extraInitrdCount) |
4170 | { |
4171 | char *initrdVal, *end; |
4172 | int i; |
4173 | size_t totalSize; |
4174 | size_t prefixLen; |
4175 | char separatorChar; |
4176 | |
4177 | prefixLen = strlen(prefix); |
4178 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ; |
4179 | |
4180 | for (i = 0; i < extraInitrdCount; i++) { |
4181 | totalSize += sizeof(separatorChar); |
4182 | totalSize += strlen(extraInitrds[i]) - prefixLen; |
4183 | } |
4184 | |
4185 | initrdVal = end = malloc(totalSize); |
4186 | |
4187 | end = stpcpy(end, newKernelInitrd + prefixLen); |
4188 | |
4189 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; |
4190 | for (i = 0; i < extraInitrdCount; i++) { |
4191 | const char *extraInitrd; |
4192 | int j; |
4193 | |
4194 | extraInitrd = extraInitrds[i] + prefixLen; |
4195 | /* Don't add entries that are already there */ |
4196 | if (tmplLine != NULL) { |
4197 | for (j = 2; j < tmplLine->numElements; j++) |
4198 | if (strcmp |
4199 | (extraInitrd, |
4200 | tmplLine->elements[j].item) == 0) |
4201 | break; |
4202 | |
4203 | if (j != tmplLine->numElements) |
4204 | continue; |
4205 | } |
4206 | |
4207 | *end++ = separatorChar; |
4208 | end = stpcpy(end, extraInitrd); |
4209 | } |
4210 | |
4211 | return initrdVal; |
4212 | } |
4213 | |
4214 | int addNewKernel(struct grubConfig *config, struct singleEntry *template, |
4215 | const char *prefix, |
4216 | const char *newKernelPath, const char *newKernelTitle, |
4217 | const char *newKernelArgs, const char *newKernelInitrd, |
4218 | const char **extraInitrds, int extraInitrdCount, |
4219 | const char *newMBKernel, const char *newMBKernelArgs, |
4220 | const char *newDevTreePath, int newIndex) |
4221 | { |
4222 | struct singleEntry *new, *entry, *prev = NULL; |
4223 | struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL; |
4224 | int needs; |
4225 | char *indexs; |
4226 | char *chptr; |
4227 | int rc; |
4228 | |
4229 | if (!newKernelPath) |
4230 | return 0; |
4231 | |
4232 | rc = asprintf(&indexs, "%d", newIndex); |
4233 | if (rc < 0) |
4234 | return 1; |
4235 | |
4236 | /* if the newKernelTitle is too long silently munge it into something |
4237 | * we can live with. truncating is first check, then we'll just mess with |
4238 | * it until it looks better */ |
4239 | if (config->cfi->maxTitleLength && |
4240 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { |
4241 | char *buf = alloca(config->cfi->maxTitleLength + 7); |
4242 | char *numBuf = alloca(config->cfi->maxTitleLength + 1); |
4243 | int i = 1; |
4244 | |
4245 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, |
4246 | newKernelTitle); |
4247 | while (findEntryByPath(config, buf, NULL, NULL)) { |
4248 | sprintf(numBuf, "%d", i++); |
4249 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); |
4250 | } |
4251 | |
4252 | newKernelTitle = buf + 6; |
4253 | } |
4254 | |
4255 | new = malloc(sizeof(*new)); |
4256 | new->skip = 0; |
4257 | new->multiboot = 0; |
4258 | new->lines = NULL; |
4259 | entry = config->entries; |
4260 | for (unsigned int i = 0; i < newIndex; i++) { |
4261 | if (!entry) |
4262 | break; |
4263 | prev = entry; |
4264 | entry = entry->next; |
4265 | } |
4266 | new->next = entry; |
4267 | |
4268 | if (prev) |
4269 | prev->next = new; |
4270 | else |
4271 | config->entries = new; |
4272 | |
4273 | /* copy/update from the template */ |
4274 | needs = NEED_KERNEL | NEED_TITLE; |
4275 | if (newKernelInitrd) |
4276 | needs |= NEED_INITRD; |
4277 | if (newMBKernel) { |
4278 | needs |= NEED_MB; |
4279 | new->multiboot = 1; |
4280 | } |
4281 | if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi)) |
4282 | needs |= NEED_DEVTREE; |
4283 | |
4284 | if (template) { |
4285 | for (masterLine = template->lines; |
4286 | masterLine && (tmplLine = lineDup(masterLine)); |
4287 | lineFree(tmplLine), masterLine = masterLine->next) { |
4288 | dbgPrintf("addNewKernel processing %d\n", |
4289 | tmplLine->type); |
4290 | |
4291 | /* skip comments */ |
4292 | chptr = tmplLine->indent; |
4293 | while (*chptr && isspace(*chptr)) |
4294 | chptr++; |
4295 | if (*chptr == '#') |
4296 | continue; |
4297 | |
4298 | if (iskernel(tmplLine->type) |
4299 | && tmplLine->numElements >= 2) { |
4300 | if (!template->multiboot && (needs & NEED_MB)) { |
4301 | /* it's not a multiboot template and |
4302 | * this is the kernel line. Try to |
4303 | * be intelligent about inserting the |
4304 | * hypervisor at the same time. |
4305 | */ |
4306 | if (config->cfi->mbHyperFirst) { |
4307 | /* insert the hypervisor first */ |
4308 | newLine = |
4309 | addLine(new, config->cfi, |
4310 | LT_HYPER, |
4311 | tmplLine->indent, |
4312 | newMBKernel + |
4313 | strlen(prefix)); |
4314 | /* set up for adding the |
4315 | * kernel line */ |
4316 | free(tmplLine->indent); |
4317 | tmplLine->indent = |
4318 | strdup(config-> |
4319 | secondaryIndent); |
4320 | needs &= ~NEED_MB; |
4321 | } |
4322 | if (needs & NEED_KERNEL) { |
4323 | /* use addLineTmpl to |
4324 | * preserve line elements, |
4325 | * otherwise we could just |
4326 | * call addLine. |
4327 | * Unfortunately this means |
4328 | * making some changes to the |
4329 | * template such as the |
4330 | * indent change above and |
4331 | * the type change below. |
4332 | */ |
4333 | struct keywordTypes *mbm_kw = |
4334 | getKeywordByType |
4335 | (LT_MBMODULE, config->cfi); |
4336 | if (mbm_kw) { |
4337 | tmplLine->type = |
4338 | LT_MBMODULE; |
4339 | free(tmplLine-> |
4340 | elements[0].item); |
4341 | tmplLine->elements[0]. |
4342 | item = |
4343 | strdup(mbm_kw->key); |
4344 | } |
4345 | newLine = |
4346 | addLineTmpl(new, tmplLine, |
4347 | newLine, |
4348 | newKernelPath + |
4349 | strlen(prefix), |
4350 | config->cfi); |
4351 | needs &= ~NEED_KERNEL; |
4352 | } |
4353 | if (needs & NEED_MB) { /* !mbHyperFirst */ |
4354 | newLine = |
4355 | addLine(new, config->cfi, |
4356 | LT_HYPER, |
4357 | config-> |
4358 | secondaryIndent, |
4359 | newMBKernel + |
4360 | strlen(prefix)); |
4361 | needs &= ~NEED_MB; |
4362 | } |
4363 | } else if (needs & NEED_KERNEL) { |
4364 | newLine = |
4365 | addLineTmpl(new, tmplLine, newLine, |
4366 | newKernelPath + |
4367 | strlen(prefix), |
4368 | config->cfi); |
4369 | needs &= ~NEED_KERNEL; |
4370 | } |
4371 | |
4372 | } else if (tmplLine->type == LT_HYPER && |
4373 | tmplLine->numElements >= 2) { |
4374 | if (needs & NEED_MB) { |
4375 | newLine = |
4376 | addLineTmpl(new, tmplLine, newLine, |
4377 | newMBKernel + |
4378 | strlen(prefix), |
4379 | config->cfi); |
4380 | needs &= ~NEED_MB; |
4381 | } |
4382 | |
4383 | } else if (tmplLine->type == LT_MBMODULE && |
4384 | tmplLine->numElements >= 2) { |
4385 | if (new->multiboot) { |
4386 | if (needs & NEED_KERNEL) { |
4387 | newLine = |
4388 | addLineTmpl(new, tmplLine, |
4389 | newLine, |
4390 | newKernelPath + |
4391 | strlen(prefix), |
4392 | config->cfi); |
4393 | needs &= ~NEED_KERNEL; |
4394 | } else if (config->cfi->mbInitRdIsModule |
4395 | && (needs & NEED_INITRD)) { |
4396 | char *initrdVal; |
4397 | initrdVal = |
4398 | getInitrdVal(config, prefix, |
4399 | tmplLine, |
4400 | newKernelInitrd, |
4401 | extraInitrds, |
4402 | extraInitrdCount); |
4403 | newLine = |
4404 | addLineTmpl(new, tmplLine, |
4405 | newLine, |
4406 | initrdVal, |
4407 | config->cfi); |
4408 | free(initrdVal); |
4409 | needs &= ~NEED_INITRD; |
4410 | } |
4411 | } else if (needs & NEED_KERNEL) { |
4412 | /* template is multi but new is not, |
4413 | * insert the kernel in the first |
4414 | * module slot |
4415 | */ |
4416 | tmplLine->type = |
4417 | preferredLineType(LT_KERNEL, |
4418 | config->cfi); |
4419 | free(tmplLine->elements[0].item); |
4420 | tmplLine->elements[0].item = |
4421 | strdup(getKeywordByType |
4422 | (tmplLine->type, |
4423 | config->cfi)->key); |
4424 | newLine = |
4425 | addLineTmpl(new, tmplLine, newLine, |
4426 | newKernelPath + |
4427 | strlen(prefix), |
4428 | config->cfi); |
4429 | needs &= ~NEED_KERNEL; |
4430 | } else if (needs & NEED_INITRD) { |
4431 | char *initrdVal; |
4432 | /* template is multi but new is not, |
4433 | * insert the initrd in the second |
4434 | * module slot |
4435 | */ |
4436 | tmplLine->type = |
4437 | preferredLineType(LT_INITRD, |
4438 | config->cfi); |
4439 | free(tmplLine->elements[0].item); |
4440 | tmplLine->elements[0].item = |
4441 | strdup(getKeywordByType |
4442 | (tmplLine->type, |
4443 | config->cfi)->key); |
4444 | initrdVal = |
4445 | getInitrdVal(config, prefix, |
4446 | tmplLine, |
4447 | newKernelInitrd, |
4448 | extraInitrds, |
4449 | extraInitrdCount); |
4450 | newLine = |
4451 | addLineTmpl(new, tmplLine, newLine, |
4452 | initrdVal, config->cfi); |
4453 | free(initrdVal); |
4454 | needs &= ~NEED_INITRD; |
4455 | } |
4456 | |
4457 | } else if (isinitrd(tmplLine->type) |
4458 | && tmplLine->numElements >= 2) { |
4459 | if (needs & NEED_INITRD && new->multiboot |
4460 | && !template->multiboot |
4461 | && config->cfi->mbInitRdIsModule) { |
4462 | /* make sure we don't insert the |
4463 | * module initrd before the module |
4464 | * kernel... if we don't do it here, |
4465 | * it will be inserted following the |
4466 | * template. |
4467 | */ |
4468 | if (!needs & NEED_KERNEL) { |
4469 | char *initrdVal; |
4470 | |
4471 | initrdVal = |
4472 | getInitrdVal(config, prefix, |
4473 | tmplLine, |
4474 | newKernelInitrd, |
4475 | extraInitrds, |
4476 | extraInitrdCount); |
4477 | newLine = |
4478 | addLine(new, config->cfi, |
4479 | LT_MBMODULE, |
4480 | config-> |
4481 | secondaryIndent, |
4482 | initrdVal); |
4483 | free(initrdVal); |
4484 | needs &= ~NEED_INITRD; |
4485 | } |
4486 | } else if (needs & NEED_INITRD) { |
4487 | char *initrdVal; |
4488 | initrdVal = |
4489 | getInitrdVal(config, prefix, |
4490 | tmplLine, |
4491 | newKernelInitrd, |
4492 | extraInitrds, |
4493 | extraInitrdCount); |
4494 | newLine = |
4495 | addLineTmpl(new, tmplLine, newLine, |
4496 | initrdVal, config->cfi); |
4497 | free(initrdVal); |
4498 | needs &= ~NEED_INITRD; |
4499 | } |
4500 | |
4501 | } else if (tmplLine->type == LT_MENUENTRY && |
4502 | (needs & NEED_TITLE)) { |
4503 | requote(tmplLine, config->cfi); |
4504 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4505 | strcpy(nkt, "'"); |
4506 | strcat(nkt, newKernelTitle); |
4507 | strcat(nkt, "'"); |
4508 | newLine = |
4509 | addLineTmpl(new, tmplLine, newLine, nkt, |
4510 | config->cfi); |
4511 | free(nkt); |
4512 | needs &= ~NEED_TITLE; |
4513 | } else if (tmplLine->type == LT_TITLE && |
4514 | (needs & NEED_TITLE)) { |
4515 | if (tmplLine->numElements >= 2) { |
4516 | newLine = |
4517 | addLineTmpl(new, tmplLine, newLine, |
4518 | newKernelTitle, |
4519 | config->cfi); |
4520 | needs &= ~NEED_TITLE; |
4521 | } else if (tmplLine->numElements == 1 && |
4522 | config->cfi->titleBracketed) { |
4523 | /* addLineTmpl doesn't handle |
4524 | * titleBracketed */ |
4525 | newLine = |
4526 | addLine(new, config->cfi, LT_TITLE, |
4527 | tmplLine->indent, |
4528 | newKernelTitle); |
4529 | needs &= ~NEED_TITLE; |
4530 | } |
4531 | } else if (tmplLine->type == LT_ECHO) { |
4532 | requote(tmplLine, config->cfi); |
4533 | static const char *prefix = "'Loading "; |
4534 | if (tmplLine->numElements > 1 && |
4535 | strstr(tmplLine->elements[1].item, prefix) |
4536 | && masterLine->next |
4537 | && iskernel(masterLine->next->type)) { |
4538 | char *newTitle = |
4539 | malloc(strlen(prefix) + |
4540 | strlen(newKernelTitle) + 2); |
4541 | |
4542 | strcpy(newTitle, prefix); |
4543 | strcat(newTitle, newKernelTitle); |
4544 | strcat(newTitle, "'"); |
4545 | newLine = |
4546 | addLine(new, config->cfi, LT_ECHO, |
4547 | tmplLine->indent, newTitle); |
4548 | free(newTitle); |
4549 | } else { |
4550 | /* pass through other lines from the |
4551 | * template */ |
4552 | newLine = |
4553 | addLineTmpl(new, tmplLine, newLine, |
4554 | NULL, config->cfi); |
4555 | } |
4556 | } else if (tmplLine->type == LT_DEVTREE && |
4557 | tmplLine->numElements == 2 |
4558 | && newDevTreePath) { |
4559 | newLine = |
4560 | addLineTmpl(new, tmplLine, newLine, |
4561 | newDevTreePath + strlen(prefix), |
4562 | config->cfi); |
4563 | needs &= ~NEED_DEVTREE; |
4564 | } else if (tmplLine->type == LT_ENTRY_END |
4565 | && needs & NEED_DEVTREE) { |
4566 | const char *ndtp = newDevTreePath; |
4567 | if (!strncmp |
4568 | (newDevTreePath, prefix, strlen(prefix))) |
4569 | ndtp += strlen(prefix); |
4570 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4571 | config->secondaryIndent, |
4572 | ndtp); |
4573 | needs &= ~NEED_DEVTREE; |
4574 | newLine = |
4575 | addLineTmpl(new, tmplLine, newLine, NULL, |
4576 | config->cfi); |
4577 | } else { |
4578 | /* pass through other lines from the template */ |
4579 | newLine = |
4580 | addLineTmpl(new, tmplLine, newLine, NULL, |
4581 | config->cfi); |
4582 | } |
4583 | } |
4584 | |
4585 | } else { |
4586 | /* don't have a template, so start the entry with the |
4587 | * appropriate starting line |
4588 | */ |
4589 | switch (config->cfi->entryStart) { |
4590 | case LT_KERNEL: |
4591 | case LT_KERNEL_EFI: |
4592 | case LT_KERNEL_16: |
4593 | if (new->multiboot && config->cfi->mbHyperFirst) { |
4594 | /* fall through to LT_HYPER */ |
4595 | } else { |
4596 | newLine = addLine(new, config->cfi, |
4597 | preferredLineType(LT_KERNEL, |
4598 | config-> |
4599 | cfi), |
4600 | config->primaryIndent, |
4601 | newKernelPath + |
4602 | strlen(prefix)); |
4603 | needs &= ~NEED_KERNEL; |
4604 | break; |
4605 | } |
4606 | |
4607 | case LT_HYPER: |
4608 | newLine = addLine(new, config->cfi, LT_HYPER, |
4609 | config->primaryIndent, |
4610 | newMBKernel + strlen(prefix)); |
4611 | needs &= ~NEED_MB; |
4612 | break; |
4613 | |
4614 | case LT_MENUENTRY:{ |
4615 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4616 | strcpy(nkt, "'"); |
4617 | strcat(nkt, newKernelTitle); |
4618 | strcat(nkt, "'"); |
4619 | newLine = |
4620 | addLine(new, config->cfi, LT_MENUENTRY, |
4621 | config->primaryIndent, nkt); |
4622 | free(nkt); |
4623 | needs &= ~NEED_TITLE; |
4624 | needs |= NEED_END; |
4625 | break; |
4626 | } |
4627 | case LT_TITLE: |
4628 | if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above) |
4629 | char *templabel; |
4630 | int x = 0, y = 0; |
4631 | |
4632 | templabel = strdup(newKernelTitle); |
4633 | while (templabel[x]) { |
4634 | if (templabel[x] == ' ') { |
4635 | y = x; |
4636 | while (templabel[y]) { |
4637 | templabel[y] = |
4638 | templabel[y + 1]; |
4639 | y++; |
4640 | } |
4641 | } |
4642 | x++; |
4643 | } |
4644 | newLine = addLine(new, config->cfi, LT_TITLE, |
4645 | config->primaryIndent, |
4646 | templabel); |
4647 | free(templabel); |
4648 | } else { |
4649 | newLine = addLine(new, config->cfi, LT_TITLE, |
4650 | config->primaryIndent, |
4651 | newKernelTitle); |
4652 | } |
4653 | needs &= ~NEED_TITLE; |
4654 | break; |
4655 | |
4656 | default: |
4657 | abort(); |
4658 | } |
4659 | } |
4660 | |
4661 | struct singleLine *endLine = NULL; |
4662 | endLine = getLineByType(LT_ENTRY_END, new->lines); |
4663 | if (endLine) { |
4664 | removeLine(new, endLine); |
4665 | needs |= NEED_END; |
4666 | } |
4667 | |
4668 | /* add the remainder of the lines, i.e. those that either |
4669 | * weren't present in the template, or in the case of no template, |
4670 | * all the lines following the entryStart. |
4671 | */ |
4672 | if (needs & NEED_TITLE) { |
4673 | newLine = addLine(new, config->cfi, LT_TITLE, |
4674 | config->secondaryIndent, newKernelTitle); |
4675 | needs &= ~NEED_TITLE; |
4676 | } |
4677 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
4678 | newLine = addLine(new, config->cfi, LT_HYPER, |
4679 | config->secondaryIndent, |
4680 | newMBKernel + strlen(prefix)); |
4681 | needs &= ~NEED_MB; |
4682 | } |
4683 | if (needs & NEED_KERNEL) { |
4684 | newLine = addLine(new, config->cfi, |
4685 | (new->multiboot |
4686 | && getKeywordByType(LT_MBMODULE, |
4687 | config->cfi)) |
4688 | ? LT_MBMODULE : preferredLineType(LT_KERNEL, |
4689 | config-> |
4690 | cfi), |
4691 | config->secondaryIndent, |
4692 | newKernelPath + strlen(prefix)); |
4693 | needs &= ~NEED_KERNEL; |
4694 | } |
4695 | if (needs & NEED_MB) { |
4696 | newLine = addLine(new, config->cfi, LT_HYPER, |
4697 | config->secondaryIndent, |
4698 | newMBKernel + strlen(prefix)); |
4699 | needs &= ~NEED_MB; |
4700 | } |
4701 | if (needs & NEED_INITRD) { |
4702 | char *initrdVal; |
4703 | initrdVal = |
4704 | getInitrdVal(config, prefix, NULL, newKernelInitrd, |
4705 | extraInitrds, extraInitrdCount); |
4706 | newLine = |
4707 | addLine(new, config->cfi, |
4708 | (new->multiboot |
4709 | && getKeywordByType(LT_MBMODULE, config->cfi)) |
4710 | ? LT_MBMODULE : preferredLineType(LT_INITRD, |
4711 | config->cfi), |
4712 | config->secondaryIndent, initrdVal); |
4713 | free(initrdVal); |
4714 | needs &= ~NEED_INITRD; |
4715 | } |
4716 | if (needs & NEED_DEVTREE) { |
4717 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4718 | config->secondaryIndent, newDevTreePath); |
4719 | needs &= ~NEED_DEVTREE; |
4720 | } |
4721 | |
4722 | /* NEEDS_END must be last on bootloaders that need it... */ |
4723 | if (needs & NEED_END) { |
4724 | newLine = addLine(new, config->cfi, LT_ENTRY_END, |
4725 | config->secondaryIndent, NULL); |
4726 | needs &= ~NEED_END; |
4727 | } |
4728 | |
4729 | if (needs) { |
4730 | printf(_("grubby: needs=%d, aborting\n"), needs); |
4731 | abort(); |
4732 | } |
4733 | |
4734 | if (updateImage(config, indexs, prefix, newKernelArgs, NULL, |
4735 | newMBKernelArgs, NULL)) { |
4736 | config->isModified = 1; |
4737 | return 1; |
4738 | } |
4739 | |
4740 | return 0; |
4741 | } |
4742 | |
4743 | int main(int argc, const char **argv) |
4744 | { |
4745 | poptContext optCon; |
4746 | const char *grubConfig = NULL; |
4747 | char *outputFile = NULL; |
4748 | int arg = 0; |
4749 | int flags = 0; |
4750 | int badImageOkay = 0; |
4751 | int configureGrub2 = 0; |
4752 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
4753 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; |
4754 | int configureExtLinux = 0; |
4755 | int bootloaderProbe = 0; |
4756 | int extraInitrdCount = 0; |
4757 | char *updateKernelPath = NULL; |
4758 | char *newKernelPath = NULL; |
4759 | char *removeKernelPath = NULL; |
4760 | char *newKernelArgs = NULL; |
4761 | char *newKernelInitrd = NULL; |
4762 | char *newKernelTitle = NULL; |
4763 | char *newDevTreePath = NULL; |
4764 | char *newMBKernel = NULL; |
4765 | char *newMBKernelArgs = NULL; |
4766 | int newIndex = 0; |
4767 | char *removeMBKernelArgs = NULL; |
4768 | char *removeMBKernel = NULL; |
4769 | char *bootPrefix = NULL; |
4770 | char *defaultKernel = NULL; |
4771 | char *removeArgs = NULL; |
4772 | char *kernelInfo = NULL; |
4773 | char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
4774 | char *envPath = NULL; |
4775 | const char *chptr = NULL; |
4776 | struct configFileInfo *cfi = NULL; |
4777 | struct grubConfig *config; |
4778 | struct singleEntry *template = NULL; |
4779 | int copyDefault = 0, makeDefault = 0; |
4780 | int displayDefault = 0; |
4781 | int displayDefaultIndex = 0; |
4782 | int displayDefaultTitle = 0; |
4783 | int defaultIndex = -1; |
4784 | struct poptOption options[] = { |
4785 | {"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, |
4786 | _("add an entry for the specified kernel"), _("kernel-path")}, |
4787 | {"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, |
4788 | _("add an entry for the specified multiboot kernel"), NULL}, |
4789 | {"args", 0, POPT_ARG_STRING, &newKernelArgs, 0, |
4790 | _("default arguments for the new kernel or new arguments for " |
4791 | "kernel being updated"), _("args")}, |
4792 | {"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, |
4793 | _("default arguments for the new multiboot kernel or " |
4794 | "new arguments for multiboot kernel being updated"), NULL}, |
4795 | {"bad-image-okay", 0, 0, &badImageOkay, 0, |
4796 | _ |
4797 | ("don't sanity check images in boot entries (for testing only)"), |
4798 | NULL}, |
4799 | {"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, |
4800 | _ |
4801 | ("filesystem which contains /boot directory (for testing only)"), |
4802 | _("bootfs")}, |
4803 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
4804 | {"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
4805 | _("check which bootloader is installed on boot sector")}, |
4806 | #endif |
4807 | {"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, |
4808 | _("path to grub config file to update (\"-\" for stdin)"), |
4809 | _("path")}, |
4810 | {"copy-default", 0, 0, ©Default, 0, |
4811 | _("use the default boot entry as a template for the new entry " |
4812 | "being added; if the default is not a linux image, or if " |
4813 | "the kernel referenced by the default image does not exist, " |
4814 | "the first linux entry whose kernel does exist is used as the " |
4815 | "template"), NULL}, |
4816 | {"debug", 0, 0, &debug, 0, |
4817 | _("print debugging information for failures")}, |
4818 | {"default-kernel", 0, 0, &displayDefault, 0, |
4819 | _("display the path of the default kernel")}, |
4820 | {"default-index", 0, 0, &displayDefaultIndex, 0, |
4821 | _("display the index of the default kernel")}, |
4822 | {"default-title", 0, 0, &displayDefaultTitle, 0, |
4823 | _("display the title of the default kernel")}, |
4824 | {"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4825 | _("device tree file for new stanza"), _("dtb-path")}, |
4826 | {"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4827 | _("device tree directory for new stanza"), _("dtb-path")}, |
4828 | {"elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
4829 | _("configure elilo bootloader")}, |
4830 | {"efi", 0, POPT_ARG_NONE, &isEfi, 0, |
4831 | _("force grub2 stanzas to use efi")}, |
4832 | {"env", 0, POPT_ARG_STRING, &envPath, 0, |
4833 | _("path for environment data"), |
4834 | _("path")}, |
4835 | {"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
4836 | _("configure extlinux bootloader (from syslinux)")}, |
4837 | {"grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
4838 | _("configure grub bootloader")}, |
4839 | {"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
4840 | _("configure grub2 bootloader")}, |
4841 | {"info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
4842 | _("display boot information for specified kernel"), |
4843 | _("kernel-path")}, |
4844 | {"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, |
4845 | _("initrd image for the new kernel"), _("initrd-path")}, |
4846 | {"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
4847 | _ |
4848 | ("auxiliary initrd image for things other than the new kernel"), |
4849 | _("initrd-path")}, |
4850 | {"lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
4851 | _("configure lilo bootloader")}, |
4852 | {"make-default", 0, 0, &makeDefault, 0, |
4853 | _("make the newly added entry the default boot entry"), NULL}, |
4854 | {"output-file", 'o', POPT_ARG_STRING, &outputFile, 0, |
4855 | _("path to output updated config file (\"-\" for stdout)"), |
4856 | _("path")}, |
4857 | {"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, |
4858 | _("remove kernel arguments"), NULL}, |
4859 | {"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, |
4860 | _("remove multiboot kernel arguments"), NULL}, |
4861 | {"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, |
4862 | _("remove all entries for the specified kernel"), |
4863 | _("kernel-path")}, |
4864 | {"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, |
4865 | _("remove all entries for the specified multiboot kernel"), |
4866 | NULL}, |
4867 | {"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, |
4868 | _("make the first entry referencing the specified kernel " |
4869 | "the default"), _("kernel-path")}, |
4870 | {"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, |
4871 | _("make the given entry index the default entry"), |
4872 | _("entry-index")}, |
4873 | {"set-index", 0, POPT_ARG_INT, &newIndex, 0, |
4874 | _("use the given index when creating a new entry"), |
4875 | _("entry-index")}, |
4876 | {"silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
4877 | _("configure silo bootloader")}, |
4878 | {"title", 0, POPT_ARG_STRING, &newKernelTitle, 0, |
4879 | _("title to use for the new kernel entry"), _("entry-title")}, |
4880 | {"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, |
4881 | _("updated information for the specified kernel"), |
4882 | _("kernel-path")}, |
4883 | {"version", 'v', 0, NULL, 'v', |
4884 | _("print the version of this program and exit"), NULL}, |
4885 | {"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, |
4886 | _("configure yaboot bootloader")}, |
4887 | {"zipl", 0, POPT_ARG_NONE, &configureZipl, 0, |
4888 | _("configure zipl bootloader")}, |
4889 | POPT_AUTOHELP {0, 0, 0, 0, 0} |
4890 | }; |
4891 | |
4892 | useextlinuxmenu = 0; |
4893 | |
4894 | int i = 0; |
4895 | for (int j = 1; j < argc; j++) |
4896 | i += strlen(argv[j]) + 1; |
4897 | saved_command_line = malloc(i); |
4898 | if (!saved_command_line) { |
4899 | fprintf(stderr, "grubby: %m\n"); |
4900 | exit(1); |
4901 | } |
4902 | saved_command_line[0] = '\0'; |
4903 | for (int j = 1; j < argc; j++) { |
4904 | strcat(saved_command_line, argv[j]); |
4905 | strncat(saved_command_line, j == argc - 1 ? "" : " ", 1); |
4906 | } |
4907 | |
4908 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
4909 | poptReadDefaultConfig(optCon, 1); |
4910 | |
4911 | while ((arg = poptGetNextOpt(optCon)) >= 0) { |
4912 | switch (arg) { |
4913 | case 'v': |
4914 | printf("grubby version %s\n", VERSION); |
4915 | exit(0); |
4916 | break; |
4917 | case 'i': |
4918 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { |
4919 | extraInitrds[extraInitrdCount++] = |
4920 | strdup(poptGetOptArg(optCon)); |
4921 | } else { |
4922 | fprintf(stderr, |
4923 | _ |
4924 | ("grubby: extra initrd maximum is %d\n"), |
4925 | extraInitrdCount); |
4926 | return 1; |
4927 | } |
4928 | break; |
4929 | } |
4930 | } |
4931 | |
4932 | if (arg < -1) { |
4933 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), |
4934 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), |
4935 | poptStrerror(arg)); |
4936 | return 1; |
4937 | } |
4938 | |
4939 | if ((chptr = poptGetArg(optCon))) { |
4940 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); |
4941 | return 1; |
4942 | } |
4943 | |
4944 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
4945 | configureYaboot + configureSilo + configureZipl + |
4946 | configureExtLinux) > 1) { |
4947 | fprintf(stderr, |
4948 | _("grubby: cannot specify multiple bootloaders\n")); |
4949 | return 1; |
4950 | } else if (bootloaderProbe && grubConfig) { |
4951 | fprintf(stderr, |
4952 | _ |
4953 | ("grubby: cannot specify config file with --bootloader-probe\n")); |
4954 | return 1; |
4955 | } else if (configureGrub2) { |
4956 | cfi = &grub2ConfigType; |
4957 | if (envPath) |
4958 | cfi->envFile = envPath; |
4959 | } else if (configureLilo) { |
4960 | cfi = &liloConfigType; |
4961 | } else if (configureGrub) { |
4962 | cfi = &grubConfigType; |
4963 | } else if (configureELilo) { |
4964 | cfi = &eliloConfigType; |
4965 | } else if (configureYaboot) { |
4966 | cfi = &yabootConfigType; |
4967 | } else if (configureSilo) { |
4968 | cfi = &siloConfigType; |
4969 | } else if (configureZipl) { |
4970 | cfi = &ziplConfigType; |
4971 | } else if (configureExtLinux) { |
4972 | cfi = &extlinuxConfigType; |
4973 | useextlinuxmenu = 1; |
4974 | } |
4975 | |
4976 | if (!cfi) { |
4977 | if (grub2FindConfig(&grub2ConfigType)) { |
4978 | cfi = &grub2ConfigType; |
4979 | if (envPath) |
4980 | cfi->envFile = envPath; |
4981 | } else |
4982 | #ifdef __ia64__ |
4983 | cfi = &eliloConfigType; |
4984 | #elif __powerpc__ |
4985 | cfi = &yabootConfigType; |
4986 | #elif __sparc__ |
4987 | cfi = &siloConfigType; |
4988 | #elif __s390__ |
4989 | cfi = &ziplConfigType; |
4990 | #elif __s390x__ |
4991 | cfi = &ziplConfigtype; |
4992 | #else |
4993 | cfi = &grubConfigType; |
4994 | #endif |
4995 | } |
4996 | |
4997 | if (!grubConfig) { |
4998 | if (cfi->findConfig) |
4999 | grubConfig = cfi->findConfig(cfi); |
5000 | if (!grubConfig) |
5001 | grubConfig = cfi->defaultConfig; |
5002 | } |
5003 | |
5004 | if (bootloaderProbe && (displayDefault || kernelInfo || |
5005 | newKernelPath || removeKernelPath || makeDefault |
5006 | || defaultKernel || displayDefaultIndex |
5007 | || displayDefaultTitle |
5008 | || (defaultIndex >= 0))) { |
5009 | fprintf(stderr, |
5010 | _("grubby: --bootloader-probe may not be used with " |
5011 | "specified option")); |
5012 | return 1; |
5013 | } |
5014 | |
5015 | if ((displayDefault || kernelInfo) && (newKernelPath || |
5016 | removeKernelPath)) { |
5017 | fprintf(stderr, _("grubby: --default-kernel and --info may not " |
5018 | "be used when adding or removing kernels\n")); |
5019 | return 1; |
5020 | } |
5021 | |
5022 | if (newKernelPath && !newKernelTitle) { |
5023 | fprintf(stderr, _("grubby: kernel title must be specified\n")); |
5024 | return 1; |
5025 | } else if (!newKernelPath && (copyDefault || |
5026 | (newKernelInitrd && !updateKernelPath) || |
5027 | makeDefault || extraInitrdCount > 0)) { |
5028 | fprintf(stderr, _("grubby: kernel path expected\n")); |
5029 | return 1; |
5030 | } |
5031 | |
5032 | if (newKernelPath && updateKernelPath) { |
5033 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" |
5034 | "not be used together")); |
5035 | return 1; |
5036 | } |
5037 | |
5038 | if (makeDefault && defaultKernel) { |
5039 | fprintf(stderr, _("grubby: --make-default and --default-kernel " |
5040 | "may not be used together\n")); |
5041 | return 1; |
5042 | } else if (defaultKernel && removeKernelPath && |
5043 | !strcmp(defaultKernel, removeKernelPath)) { |
5044 | fprintf(stderr, |
5045 | _("grubby: cannot make removed kernel the default\n")); |
5046 | return 1; |
5047 | } else if (defaultKernel && newKernelPath && |
5048 | !strcmp(defaultKernel, newKernelPath)) { |
5049 | makeDefault = 1; |
5050 | defaultKernel = NULL; |
5051 | } else if (defaultKernel && (defaultIndex >= 0)) { |
5052 | fprintf(stderr, |
5053 | _("grubby: --set-default and --set-default-index " |
5054 | "may not be used together\n")); |
5055 | return 1; |
5056 | } |
5057 | |
5058 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
5059 | fprintf(stderr, |
5060 | _("grubby: output file must be specified if stdin " |
5061 | "is used\n")); |
5062 | return 1; |
5063 | } |
5064 | |
5065 | if (!removeKernelPath && !newKernelPath && !displayDefault |
5066 | && !defaultKernel && !kernelInfo && !bootloaderProbe |
5067 | && !updateKernelPath && !removeMBKernel && !displayDefaultIndex |
5068 | && !displayDefaultTitle && (defaultIndex == -1)) { |
5069 | fprintf(stderr, _("grubby: no action specified\n")); |
5070 | return 1; |
5071 | } |
5072 | |
5073 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; |
5074 | |
5075 | if (cfi->needsBootPrefix) { |
5076 | if (!bootPrefix) { |
5077 | bootPrefix = findBootPrefix(); |
5078 | if (!bootPrefix) |
5079 | return 1; |
5080 | } else { |
5081 | /* this shouldn't end with a / */ |
5082 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') |
5083 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; |
5084 | } |
5085 | } else { |
5086 | bootPrefix = ""; |
5087 | } |
5088 | |
5089 | if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) { |
5090 | fprintf(stderr, |
5091 | _("grubby: %s doesn't allow multiple initrds\n"), |
5092 | cfi->defaultConfig); |
5093 | return 1; |
5094 | } |
5095 | |
5096 | if (bootloaderProbe) { |
5097 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; |
5098 | struct grubConfig *lconfig, *gconfig, *yconfig, *econfig; |
5099 | |
5100 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
5101 | if (grub2config) { |
5102 | gconfig = readConfig(grub2config, &grub2ConfigType); |
5103 | if (!gconfig) |
5104 | gr2c = 1; |
5105 | else |
5106 | gr2c = checkForGrub2(gconfig); |
5107 | } |
5108 | |
5109 | const char *grubconfig = grubFindConfig(&grubConfigType); |
5110 | if (!access(grubconfig, F_OK)) { |
5111 | gconfig = readConfig(grubconfig, &grubConfigType); |
5112 | if (!gconfig) |
5113 | grc = 1; |
5114 | else |
5115 | grc = checkForGrub(gconfig); |
5116 | } |
5117 | |
5118 | if (!access(liloConfigType.defaultConfig, F_OK)) { |
5119 | lconfig = |
5120 | readConfig(liloConfigType.defaultConfig, |
5121 | &liloConfigType); |
5122 | if (!lconfig) |
5123 | lrc = 1; |
5124 | else |
5125 | lrc = checkForLilo(lconfig); |
5126 | } |
5127 | |
5128 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
5129 | econfig = readConfig(eliloConfigType.defaultConfig, |
5130 | &eliloConfigType); |
5131 | if (!econfig) |
5132 | erc = 1; |
5133 | else |
5134 | erc = checkForElilo(econfig); |
5135 | } |
5136 | |
5137 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
5138 | lconfig = |
5139 | readConfig(extlinuxConfigType.defaultConfig, |
5140 | &extlinuxConfigType); |
5141 | if (!lconfig) |
5142 | extrc = 1; |
5143 | else |
5144 | extrc = checkForExtLinux(lconfig); |
5145 | } |
5146 | |
5147 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
5148 | yconfig = readConfig(yabootConfigType.defaultConfig, |
5149 | &yabootConfigType); |
5150 | if (!yconfig) |
5151 | yrc = 1; |
5152 | else |
5153 | yrc = checkForYaboot(yconfig); |
5154 | } |
5155 | |
5156 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 |
5157 | || erc == 1) |
5158 | return 1; |
5159 | |
5160 | if (lrc == 2) |
5161 | printf("lilo\n"); |
5162 | if (gr2c == 2) |
5163 | printf("grub2\n"); |
5164 | if (grc == 2) |
5165 | printf("grub\n"); |
5166 | if (extrc == 2) |
5167 | printf("extlinux\n"); |
5168 | if (yrc == 2) |
5169 | printf("yaboot\n"); |
5170 | if (erc == 2) |
5171 | printf("elilo\n"); |
5172 | |
5173 | return 0; |
5174 | } |
5175 | |
5176 | if (grubConfig == NULL) { |
5177 | printf("Could not find bootloader configuration file.\n"); |
5178 | exit(1); |
5179 | } |
5180 | |
5181 | config = readConfig(grubConfig, cfi); |
5182 | if (!config) |
5183 | return 1; |
5184 | |
5185 | if (displayDefault) { |
5186 | struct singleLine *line; |
5187 | struct singleEntry *entry; |
5188 | char *rootspec; |
5189 | |
5190 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5191 | return 0; |
5192 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5193 | cfi->defaultIsSaved) |
5194 | config->defaultImage = FIRST_ENTRY_INDEX; |
5195 | entry = findEntryByIndex(config, config->defaultImage); |
5196 | if (!entry) |
5197 | return 0; |
5198 | if (!suitableImage(entry, bootPrefix, 0, flags)) |
5199 | return 0; |
5200 | |
5201 | line = |
5202 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
5203 | LT_KERNEL_16, entry->lines); |
5204 | if (!line) |
5205 | return 0; |
5206 | |
5207 | rootspec = getRootSpecifier(line->elements[1].item); |
5208 | printf("%s%s\n", bootPrefix, line->elements[1].item + |
5209 | ((rootspec != NULL) ? strlen(rootspec) : 0)); |
5210 | |
5211 | return 0; |
5212 | |
5213 | } else if (displayDefaultTitle) { |
5214 | struct singleLine *line; |
5215 | struct singleEntry *entry; |
5216 | |
5217 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5218 | return 0; |
5219 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5220 | cfi->defaultIsSaved) |
5221 | config->defaultImage = FIRST_ENTRY_INDEX; |
5222 | entry = findEntryByIndex(config, config->defaultImage); |
5223 | if (!entry) |
5224 | return 0; |
5225 | |
5226 | if (!configureGrub2) { |
5227 | char *title; |
5228 | line = getLineByType(LT_TITLE, entry->lines); |
5229 | if (!line) |
5230 | return 0; |
5231 | title = extractTitle(config, line); |
5232 | if (!title) |
5233 | return 0; |
5234 | printf("%s\n", title); |
5235 | free(title); |
5236 | } else { |
5237 | char *title; |
5238 | |
5239 | dbgPrintf |
5240 | ("This is GRUB2, default title is embeded in menuentry\n"); |
5241 | line = getLineByType(LT_MENUENTRY, entry->lines); |
5242 | if (!line) |
5243 | return 0; |
5244 | title = grub2ExtractTitle(line); |
5245 | if (title) |
5246 | printf("%s\n", title); |
5247 | } |
5248 | return 0; |
5249 | |
5250 | } else if (displayDefaultIndex) { |
5251 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5252 | return 0; |
5253 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5254 | cfi->defaultIsSaved) |
5255 | config->defaultImage = FIRST_ENTRY_INDEX; |
5256 | printf("%i\n", config->defaultImage); |
5257 | return 0; |
5258 | |
5259 | } else if (kernelInfo) |
5260 | return displayInfo(config, kernelInfo, bootPrefix); |
5261 | |
5262 | if (copyDefault) { |
5263 | template = findTemplate(config, bootPrefix, NULL, 0, flags); |
5264 | if (!template) |
5265 | return 1; |
5266 | } |
5267 | |
5268 | markRemovedImage(config, removeKernelPath, bootPrefix); |
5269 | markRemovedImage(config, removeMBKernel, bootPrefix); |
5270 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, |
5271 | makeDefault, bootPrefix, flags, defaultIndex); |
5272 | setFallbackImage(config, newKernelPath != NULL); |
5273 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, |
5274 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) |
5275 | return 1; |
5276 | if (updateKernelPath && newKernelInitrd) { |
5277 | if (newMBKernel) { |
5278 | if (addMBInitrd(config, newMBKernel, updateKernelPath, |
5279 | bootPrefix, newKernelInitrd, |
5280 | newKernelTitle)) |
5281 | return 1; |
5282 | } else { |
5283 | if (updateInitrd(config, updateKernelPath, bootPrefix, |
5284 | newKernelInitrd, newKernelTitle)) |
5285 | return 1; |
5286 | } |
5287 | } |
5288 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
5289 | newKernelTitle, newKernelArgs, newKernelInitrd, |
5290 | (const char **)extraInitrds, extraInitrdCount, |
5291 | newMBKernel, newMBKernelArgs, newDevTreePath, |
5292 | newIndex)) |
5293 | return 1; |
5294 | |
5295 | if (numEntries(config) == 0) { |
5296 | fprintf(stderr, |
5297 | _("grubby: doing this would leave no kernel entries. " |
5298 | "Not writing out new config.\n")); |
5299 | return 1; |
5300 | } |
5301 | |
5302 | if (!outputFile) |
5303 | outputFile = (char *)grubConfig; |
5304 | |
5305 | return writeConfig(config, outputFile, bootPrefix); |
5306 | } |