Contents of /trunk/grubby/grubby.c
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Revision 3018 -
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Tue Jun 27 14:37:30 2017 UTC (7 years, 3 months ago) by niro
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File size: 130856 byte(s)
Tue Jun 27 14:37:30 2017 UTC (7 years, 3 months ago) by niro
File MIME type: text/plain
File size: 130856 byte(s)
Add index constant definitions instead of open-coded values.
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 | }; |
685 | |
686 | blkid_cache blkid; |
687 | |
688 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index); |
689 | struct singleEntry *findEntryByPath(struct grubConfig *cfg, |
690 | const char *path, const char *prefix, |
691 | int *index); |
692 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
693 | int *index); |
694 | static int readFile(int fd, char **bufPtr); |
695 | static void lineInit(struct singleLine *line); |
696 | struct singleLine *lineDup(struct singleLine *line); |
697 | static void lineFree(struct singleLine *line); |
698 | static int lineWrite(FILE * out, struct singleLine *line, |
699 | struct configFileInfo *cfi); |
700 | static int getNextLine(char **bufPtr, struct singleLine *line, |
701 | struct configFileInfo *cfi); |
702 | static char *getRootSpecifier(char *str); |
703 | static void requote(struct singleLine *line, struct configFileInfo *cfi); |
704 | static void insertElement(struct singleLine *line, |
705 | const char *item, int insertHere, |
706 | struct configFileInfo *cfi); |
707 | static void removeElement(struct singleLine *line, int removeHere); |
708 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
709 | struct configFileInfo *cfi); |
710 | static enum lineType_e getTypeByKeyword(char *keyword, |
711 | struct configFileInfo *cfi); |
712 | static struct singleLine *getLineByType(enum lineType_e type, |
713 | struct singleLine *line); |
714 | static int checkForExtLinux(struct grubConfig *config); |
715 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
716 | struct singleLine *tmplLine, |
717 | struct singleLine *prevLine, |
718 | const char *val, struct configFileInfo *cfi); |
719 | struct singleLine *addLine(struct singleEntry *entry, |
720 | struct configFileInfo *cfi, |
721 | enum lineType_e type, char *defaultIndent, |
722 | const char *val); |
723 | |
724 | static char *sdupprintf(const char *format, ...) |
725 | #ifdef __GNUC__ |
726 | __attribute__ ((format(printf, 1, 2))); |
727 | #else |
728 | ; |
729 | #endif |
730 | |
731 | static char *sdupprintf(const char *format, ...) |
732 | { |
733 | char *buf = NULL; |
734 | char c; |
735 | va_list args; |
736 | size_t size = 0; |
737 | va_start(args, format); |
738 | |
739 | /* XXX requires C99 vsnprintf behavior */ |
740 | size = vsnprintf(&c, 1, format, args) + 1; |
741 | if (size == -1) { |
742 | printf("ERROR: vsnprintf behavior is not C99\n"); |
743 | abort(); |
744 | } |
745 | |
746 | va_end(args); |
747 | va_start(args, format); |
748 | |
749 | buf = malloc(size); |
750 | if (buf == NULL) |
751 | return NULL; |
752 | vsnprintf(buf, size, format, args); |
753 | va_end(args); |
754 | |
755 | return buf; |
756 | } |
757 | |
758 | static inline int |
759 | kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive) |
760 | { |
761 | int kwl = strlen(kw->key); |
762 | int ll = strlen(label); |
763 | int rc; |
764 | int (*snc)(const char *s1, const char *s2, size_t n) = |
765 | case_insensitive ? strncasecmp : strncmp; |
766 | int (*sc)(const char *s1, const char *s2) = |
767 | case_insensitive ? strcasecmp : strcmp; |
768 | |
769 | rc = snc(kw->key, label, kwl); |
770 | if (rc) |
771 | return rc; |
772 | |
773 | for (int i = kwl; i < ll; i++) { |
774 | if (isspace(label[i])) |
775 | return 0; |
776 | if (kw->separatorChar && label[i] == kw->separatorChar) |
777 | return 0; |
778 | else if (kw->nextChar && label[i] == kw->nextChar) |
779 | return 0; |
780 | return sc(kw->key+kwl, label+kwl); |
781 | } |
782 | return 0; |
783 | } |
784 | |
785 | static enum lineType_e preferredLineType(enum lineType_e type, |
786 | struct configFileInfo *cfi) |
787 | { |
788 | if (isEfi && cfi == &grub2ConfigType) { |
789 | switch (type) { |
790 | case LT_KERNEL: |
791 | return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI; |
792 | case LT_INITRD: |
793 | return isEfiOnly ? LT_INITRD : LT_INITRD_EFI; |
794 | default: |
795 | return type; |
796 | } |
797 | #if defined(__i386__) || defined(__x86_64__) |
798 | } else if (cfi == &grub2ConfigType) { |
799 | switch (type) { |
800 | case LT_KERNEL: |
801 | return LT_KERNEL_16; |
802 | case LT_INITRD: |
803 | return LT_INITRD_16; |
804 | default: |
805 | return type; |
806 | } |
807 | #endif |
808 | } |
809 | return type; |
810 | } |
811 | |
812 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
813 | struct configFileInfo *cfi) |
814 | { |
815 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
816 | if (kw->type == type) |
817 | return kw; |
818 | } |
819 | return NULL; |
820 | } |
821 | |
822 | static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi) |
823 | { |
824 | struct keywordTypes *kt = getKeywordByType(type, cfi); |
825 | if (kt) |
826 | return kt->key; |
827 | return "unknown"; |
828 | } |
829 | |
830 | static char *getpathbyspec(char *device) |
831 | { |
832 | if (!blkid) |
833 | blkid_get_cache(&blkid, NULL); |
834 | |
835 | return blkid_get_devname(blkid, device, NULL); |
836 | } |
837 | |
838 | static char *getuuidbydev(char *device) |
839 | { |
840 | if (!blkid) |
841 | blkid_get_cache(&blkid, NULL); |
842 | |
843 | return blkid_get_tag_value(blkid, "UUID", device); |
844 | } |
845 | |
846 | static enum lineType_e getTypeByKeyword(char *keyword, |
847 | struct configFileInfo *cfi) |
848 | { |
849 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
850 | if (!kwcmp(kw, keyword, cfi->caseInsensitive)) |
851 | return kw->type; |
852 | } |
853 | return LT_UNKNOWN; |
854 | } |
855 | |
856 | static struct singleLine *getLineByType(enum lineType_e type, |
857 | struct singleLine *line) |
858 | { |
859 | dbgPrintf("getLineByType(%d): ", type); |
860 | for (; line; line = line->next) { |
861 | dbgPrintf("%d:%s ", line->type, |
862 | line->numElements ? line->elements[0]. |
863 | item : "(empty)"); |
864 | if (line->type & type) |
865 | break; |
866 | } |
867 | dbgPrintf(line ? "\n" : " (failed)\n"); |
868 | return line; |
869 | } |
870 | |
871 | static int isBracketedTitle(struct singleLine *line) |
872 | { |
873 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
874 | int len = strlen(line->elements[0].item); |
875 | if (*(line->elements[0].item + len - 1) == ']') { |
876 | /* FIXME: this is a hack... */ |
877 | if (strcmp(line->elements[0].item, "[defaultboot]")) { |
878 | return 1; |
879 | } |
880 | } |
881 | } |
882 | return 0; |
883 | } |
884 | |
885 | static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi) |
886 | { |
887 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
888 | (cfi->titleBracketed && isBracketedTitle(line)); |
889 | } |
890 | |
891 | /* extract the title from within brackets (for zipl) */ |
892 | static char *extractTitle(struct grubConfig *cfg, struct singleLine *line) |
893 | { |
894 | /* bracketed title... let's extract it */ |
895 | char *title = NULL; |
896 | if (line->type == LT_TITLE) { |
897 | char *tmp = line->elements[cfg->cfi->titlePosition].item; |
898 | if (cfg->cfi->titleBracketed) { |
899 | tmp++; |
900 | title = strdup(tmp); |
901 | *(title + strlen(title) - 1) = '\0'; |
902 | } else { |
903 | title = strdup(tmp); |
904 | } |
905 | } else if (line->type == LT_MENUENTRY) |
906 | title = strdup(line->elements[1].item); |
907 | else |
908 | return NULL; |
909 | return title; |
910 | } |
911 | |
912 | static int readFile(int fd, char **bufPtr) |
913 | { |
914 | int alloced = 0, size = 0, i = 0; |
915 | char *buf = NULL; |
916 | |
917 | do { |
918 | size += i; |
919 | if ((size + 1024) > alloced) { |
920 | alloced += 4096; |
921 | buf = realloc(buf, alloced + 1); |
922 | } |
923 | } while ((i = read(fd, buf + size, 1024)) > 0); |
924 | |
925 | if (i < 0) { |
926 | fprintf(stderr, _("error reading input: %s\n"), |
927 | strerror(errno)); |
928 | free(buf); |
929 | return 1; |
930 | } |
931 | |
932 | buf = realloc(buf, size + 2); |
933 | if (size == 0) |
934 | buf[size++] = '\n'; |
935 | else if (buf[size - 1] != '\n') |
936 | buf[size++] = '\n'; |
937 | buf[size] = '\0'; |
938 | |
939 | *bufPtr = buf; |
940 | |
941 | return 0; |
942 | } |
943 | |
944 | static void lineInit(struct singleLine *line) |
945 | { |
946 | line->type = LT_UNIDENTIFIED; |
947 | line->indent = NULL; |
948 | line->elements = NULL; |
949 | line->numElements = 0; |
950 | line->next = NULL; |
951 | } |
952 | |
953 | struct singleLine *lineDup(struct singleLine *line) |
954 | { |
955 | struct singleLine *newLine = malloc(sizeof(*newLine)); |
956 | |
957 | newLine->indent = strdup(line->indent); |
958 | newLine->next = NULL; |
959 | newLine->type = line->type; |
960 | newLine->numElements = line->numElements; |
961 | newLine->elements = malloc(sizeof(*newLine->elements) * |
962 | newLine->numElements); |
963 | |
964 | for (int i = 0; i < newLine->numElements; i++) { |
965 | newLine->elements[i].indent = strdup(line->elements[i].indent); |
966 | newLine->elements[i].item = strdup(line->elements[i].item); |
967 | } |
968 | |
969 | return newLine; |
970 | } |
971 | |
972 | static void lineFree(struct singleLine *line) |
973 | { |
974 | if (line->indent) |
975 | free(line->indent); |
976 | |
977 | for (int i = 0; i < line->numElements; i++) { |
978 | free(line->elements[i].item); |
979 | free(line->elements[i].indent); |
980 | } |
981 | |
982 | if (line->elements) |
983 | free(line->elements); |
984 | lineInit(line); |
985 | } |
986 | |
987 | static int lineWrite(FILE * out, struct singleLine *line, |
988 | struct configFileInfo *cfi) |
989 | { |
990 | if (fprintf(out, "%s", line->indent) == -1) |
991 | return -1; |
992 | |
993 | for (int i = 0; i < line->numElements; i++) { |
994 | /* Need to handle this, because we strip the quotes from |
995 | * menuentry when read it. */ |
996 | if (line->type == LT_MENUENTRY && i == 1) { |
997 | if (!isquote(*line->elements[i].item)) { |
998 | int substring = 0; |
999 | /* If the line contains nested quotes, we did |
1000 | * not strip the "interna" quotes and we must |
1001 | * use the right quotes again when writing |
1002 | * the updated file. */ |
1003 | for (int j = i; j < line->numElements; j++) { |
1004 | if (strchr(line->elements[i].item, '\'') |
1005 | != NULL) { |
1006 | substring = 1; |
1007 | fprintf(out, "\"%s\"", |
1008 | line->elements[i].item); |
1009 | break; |
1010 | } |
1011 | } |
1012 | if (!substring) |
1013 | fprintf(out, "\'%s\'", |
1014 | line->elements[i].item); |
1015 | } else { |
1016 | fprintf(out, "%s", line->elements[i].item); |
1017 | } |
1018 | fprintf(out, "%s", line->elements[i].indent); |
1019 | |
1020 | continue; |
1021 | } |
1022 | |
1023 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1024 | if (fputc('"', out) == EOF) |
1025 | return -1; |
1026 | |
1027 | if (fprintf(out, "%s", line->elements[i].item) == -1) |
1028 | return -1; |
1029 | if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE) |
1030 | if (fprintf(out, "%s", line->elements[i].indent) == -1) |
1031 | return -1; |
1032 | } |
1033 | |
1034 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1035 | if (fputc('"', out) == EOF) |
1036 | return -1; |
1037 | |
1038 | if (fprintf(out, "\n") == -1) |
1039 | return -1; |
1040 | |
1041 | return 0; |
1042 | } |
1043 | |
1044 | /* we've guaranteed that the buffer ends w/ \n\0 */ |
1045 | static int getNextLine(char **bufPtr, struct singleLine *line, |
1046 | struct configFileInfo *cfi) |
1047 | { |
1048 | char *end; |
1049 | char *start = *bufPtr; |
1050 | char *chptr; |
1051 | int elementsAlloced = 0; |
1052 | struct lineElement *element; |
1053 | int first = 1; |
1054 | |
1055 | lineFree(line); |
1056 | |
1057 | end = strchr(start, '\n'); |
1058 | *end = '\0'; |
1059 | *bufPtr = end + 1; |
1060 | |
1061 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; |
1062 | |
1063 | line->indent = strndup(start, chptr - start); |
1064 | start = chptr; |
1065 | |
1066 | while (start < end) { |
1067 | /* we know !isspace(*start) */ |
1068 | |
1069 | if (elementsAlloced == line->numElements) { |
1070 | elementsAlloced += 5; |
1071 | line->elements = realloc(line->elements, |
1072 | sizeof(*line->elements) * |
1073 | elementsAlloced); |
1074 | } |
1075 | |
1076 | element = line->elements + line->numElements; |
1077 | |
1078 | chptr = start; |
1079 | while (*chptr && !isspace(*chptr)) { |
1080 | if (first && *chptr == '=') |
1081 | break; |
1082 | chptr++; |
1083 | } |
1084 | if (line->type == LT_UNIDENTIFIED) |
1085 | line->type = getTypeByKeyword(start, cfi); |
1086 | element->item = strndup(start, chptr - start); |
1087 | start = chptr; |
1088 | |
1089 | /* lilo actually accepts the pathological case of |
1090 | * append = " foo " */ |
1091 | if (*start == '=') |
1092 | chptr = start + 1; |
1093 | else |
1094 | chptr = start; |
1095 | |
1096 | do { |
1097 | for (; *chptr && isspace(*chptr); chptr++) ; |
1098 | if (*chptr == '=') |
1099 | chptr = chptr + 1; |
1100 | } while (isspace(*chptr)); |
1101 | |
1102 | element->indent = strndup(start, chptr - start); |
1103 | start = chptr; |
1104 | |
1105 | line->numElements++; |
1106 | first = 0; |
1107 | } |
1108 | |
1109 | if (!line->numElements) |
1110 | line->type = LT_WHITESPACE; |
1111 | else { |
1112 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
1113 | if (line->type == LT_UNKNOWN) { |
1114 | /* zipl does [title] instead of something reasonable |
1115 | * like all the other boot loaders. kind of ugly */ |
1116 | if (cfi->titleBracketed && isBracketedTitle(line)) { |
1117 | line->type = LT_TITLE; |
1118 | } |
1119 | |
1120 | /* this is awkward, but we need to be able to handle |
1121 | * keywords that begin with a # (specifically for |
1122 | * #boot in grub.conf), but still make comments lines |
1123 | * with no elements (everything stored in the indent |
1124 | */ |
1125 | if (*line->elements[0].item == '#') { |
1126 | char *fullLine; |
1127 | int len; |
1128 | |
1129 | len = strlen(line->indent); |
1130 | for (int i = 0; i < line->numElements; i++) |
1131 | len += strlen(line->elements[i].item) + |
1132 | strlen(line->elements[i].indent); |
1133 | |
1134 | fullLine = malloc(len + 1); |
1135 | strcpy(fullLine, line->indent); |
1136 | free(line->indent); |
1137 | line->indent = fullLine; |
1138 | |
1139 | for (int i = 0; i < line->numElements; i++) { |
1140 | strcat(fullLine, |
1141 | line->elements[i].item); |
1142 | strcat(fullLine, |
1143 | line->elements[i].indent); |
1144 | free(line->elements[i].item); |
1145 | free(line->elements[i].indent); |
1146 | } |
1147 | |
1148 | line->type = LT_WHITESPACE; |
1149 | line->numElements = 0; |
1150 | } |
1151 | } else if (line->type == LT_INITRD) { |
1152 | struct keywordTypes *kw; |
1153 | |
1154 | kw = getKeywordByType(line->type, cfi); |
1155 | |
1156 | /* space isn't the only separator, we need to split |
1157 | * elements up more |
1158 | */ |
1159 | if (!isspace(kw->separatorChar)) { |
1160 | char indent[2] = ""; |
1161 | indent[0] = kw->separatorChar; |
1162 | for (int i = 1; i < line->numElements; i++) { |
1163 | char *p; |
1164 | int numNewElements; |
1165 | |
1166 | numNewElements = 0; |
1167 | p = line->elements[i].item; |
1168 | while (*p != '\0') { |
1169 | if (*p == kw->separatorChar) |
1170 | numNewElements++; |
1171 | p++; |
1172 | } |
1173 | if (line->numElements + |
1174 | numNewElements >= elementsAlloced) { |
1175 | elementsAlloced += |
1176 | numNewElements + 5; |
1177 | line->elements = |
1178 | realloc(line->elements, |
1179 | sizeof(*line-> |
1180 | elements) * |
1181 | elementsAlloced); |
1182 | } |
1183 | |
1184 | for (int j = line->numElements; j > i; |
1185 | j--) { |
1186 | line->elements[j + |
1187 | numNewElements] = |
1188 | line->elements[j]; |
1189 | } |
1190 | line->numElements += numNewElements; |
1191 | |
1192 | p = line->elements[i].item; |
1193 | while (*p != '\0') { |
1194 | |
1195 | while (*p != kw->separatorChar |
1196 | && *p != '\0') |
1197 | p++; |
1198 | if (*p == '\0') { |
1199 | break; |
1200 | } |
1201 | |
1202 | line->elements[i + 1].indent = |
1203 | line->elements[i].indent; |
1204 | line->elements[i].indent = |
1205 | strdup(indent); |
1206 | *p++ = '\0'; |
1207 | i++; |
1208 | line->elements[i].item = |
1209 | strdup(p); |
1210 | } |
1211 | } |
1212 | } |
1213 | } else if (line->type == LT_SET_VARIABLE) { |
1214 | /* and if it's a "set blah=" we need to split it |
1215 | * yet a third way to avoid rhbz# XXX FIXME :/ |
1216 | */ |
1217 | char *eq; |
1218 | int l; |
1219 | int numElements = line->numElements; |
1220 | struct lineElement *newElements; |
1221 | eq = strchr(line->elements[1].item, '='); |
1222 | if (!eq) |
1223 | return 0; |
1224 | l = eq - line->elements[1].item; |
1225 | if (eq[1] != 0) |
1226 | numElements++; |
1227 | newElements = calloc(numElements,sizeof (*newElements)); |
1228 | memcpy(&newElements[0], &line->elements[0], |
1229 | sizeof (newElements[0])); |
1230 | newElements[1].item = |
1231 | strndup(line->elements[1].item, l); |
1232 | newElements[1].indent = "="; |
1233 | *(eq++) = '\0'; |
1234 | newElements[2].item = strdup(eq); |
1235 | free(line->elements[1].item); |
1236 | if (line->elements[1].indent) |
1237 | newElements[2].indent = line->elements[1].indent; |
1238 | for (int i = 2; i < line->numElements; i++) { |
1239 | newElements[i+1].item = line->elements[i].item; |
1240 | newElements[i+1].indent = |
1241 | line->elements[i].indent; |
1242 | } |
1243 | free(line->elements); |
1244 | line->elements = newElements; |
1245 | line->numElements = numElements; |
1246 | } |
1247 | } |
1248 | |
1249 | return 0; |
1250 | } |
1251 | |
1252 | static int isnumber(const char *s) |
1253 | { |
1254 | int i; |
1255 | for (i = 0; s[i] != '\0'; i++) |
1256 | if (s[i] < '0' || s[i] > '9') |
1257 | return 0; |
1258 | return i; |
1259 | } |
1260 | |
1261 | static struct grubConfig *readConfig(const char *inName, |
1262 | struct configFileInfo *cfi) |
1263 | { |
1264 | int in; |
1265 | char *incoming = NULL, *head; |
1266 | int rc; |
1267 | int sawEntry = 0; |
1268 | int movedLine = 0; |
1269 | struct grubConfig *cfg; |
1270 | struct singleLine *last = NULL, *line, *defaultLine = NULL; |
1271 | char *end; |
1272 | struct singleEntry *entry = NULL; |
1273 | int len; |
1274 | char *buf; |
1275 | |
1276 | if (inName == NULL) { |
1277 | printf("Could not find bootloader configuration\n"); |
1278 | exit(1); |
1279 | } else if (!strcmp(inName, "-")) { |
1280 | in = 0; |
1281 | } else { |
1282 | if ((in = open(inName, O_RDONLY)) < 0) { |
1283 | fprintf(stderr, _("error opening %s for read: %s\n"), |
1284 | inName, strerror(errno)); |
1285 | return NULL; |
1286 | } |
1287 | } |
1288 | |
1289 | rc = readFile(in, &incoming); |
1290 | close(in); |
1291 | if (rc) |
1292 | return NULL; |
1293 | |
1294 | head = incoming; |
1295 | cfg = malloc(sizeof(*cfg)); |
1296 | cfg->primaryIndent = strdup(""); |
1297 | cfg->secondaryIndent = strdup("\t"); |
1298 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; |
1299 | cfg->cfi = cfi; |
1300 | cfg->theLines = NULL; |
1301 | cfg->entries = NULL; |
1302 | cfg->fallbackImage = 0; |
1303 | |
1304 | /* copy everything we have */ |
1305 | while (*head) { |
1306 | line = malloc(sizeof(*line)); |
1307 | lineInit(line); |
1308 | |
1309 | if (getNextLine(&head, line, cfi)) { |
1310 | free(line); |
1311 | /* XXX memory leak of everything in cfg */ |
1312 | return NULL; |
1313 | } |
1314 | |
1315 | if (!sawEntry && line->numElements) { |
1316 | free(cfg->primaryIndent); |
1317 | cfg->primaryIndent = strdup(line->indent); |
1318 | } else if (line->numElements) { |
1319 | free(cfg->secondaryIndent); |
1320 | cfg->secondaryIndent = strdup(line->indent); |
1321 | } |
1322 | |
1323 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
1324 | sawEntry = 1; |
1325 | if (!entry) { |
1326 | cfg->entries = malloc(sizeof(*entry)); |
1327 | entry = cfg->entries; |
1328 | } else { |
1329 | entry->next = malloc(sizeof(*entry)); |
1330 | entry = entry->next; |
1331 | } |
1332 | |
1333 | entry->skip = 0; |
1334 | entry->multiboot = 0; |
1335 | entry->lines = NULL; |
1336 | entry->next = NULL; |
1337 | } |
1338 | |
1339 | if (line->type == LT_SET_VARIABLE) { |
1340 | dbgPrintf("found 'set' command (%d elements): ", |
1341 | line->numElements); |
1342 | dbgPrintf("%s", line->indent); |
1343 | for (int i = 0; i < line->numElements; i++) |
1344 | dbgPrintf("\"%s\"%s", line->elements[i].item, |
1345 | line->elements[i].indent); |
1346 | dbgPrintf("\n"); |
1347 | struct keywordTypes *kwType = |
1348 | getKeywordByType(LT_DEFAULT, cfi); |
1349 | if (kwType && line->numElements == 3 |
1350 | && !strcmp(line->elements[1].item, kwType->key) |
1351 | && !is_special_grub2_variable( |
1352 | line->elements[2].item)) { |
1353 | dbgPrintf("Line sets default config\n"); |
1354 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1355 | defaultLine = line; |
1356 | } |
1357 | } else if (iskernel(line->type)) { |
1358 | /* if by some freak chance this is multiboot and the |
1359 | * "module" lines came earlier in the template, make |
1360 | * sure to use LT_HYPER instead of LT_KERNEL now |
1361 | */ |
1362 | if (entry && entry->multiboot) |
1363 | line->type = LT_HYPER; |
1364 | |
1365 | } else if (line->type == LT_MBMODULE) { |
1366 | /* go back and fix the LT_KERNEL line to indicate |
1367 | * LT_HYPER instead, now that we know this is a |
1368 | * multiboot entry. This only applies to grub, but |
1369 | * that's the only place we should find LT_MBMODULE |
1370 | * lines anyway. |
1371 | */ |
1372 | for (struct singleLine * l = entry->lines; l; |
1373 | l = l->next) { |
1374 | if (l->type == LT_HYPER) |
1375 | break; |
1376 | else if (iskernel(l->type)) { |
1377 | l->type = LT_HYPER; |
1378 | break; |
1379 | } |
1380 | } |
1381 | entry->multiboot = 1; |
1382 | |
1383 | } else if (line->type == LT_HYPER) { |
1384 | entry->multiboot = 1; |
1385 | |
1386 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1387 | cfg->fallbackImage = |
1388 | strtol(line->elements[1].item, &end, 10); |
1389 | if (*end) |
1390 | cfg->fallbackImage = -1; |
1391 | |
1392 | } else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted) |
1393 | || (line->type == LT_TITLE |
1394 | && line->numElements > 1)) { |
1395 | /* make the title/default a single argument (undoing |
1396 | * our parsing) */ |
1397 | len = 0; |
1398 | for (int i = 1; i < line->numElements; i++) { |
1399 | len += strlen(line->elements[i].item); |
1400 | len += strlen(line->elements[i].indent); |
1401 | } |
1402 | buf = malloc(len + 1); |
1403 | *buf = '\0'; |
1404 | |
1405 | for (int i = 1; i < line->numElements; i++) { |
1406 | strcat(buf, line->elements[i].item); |
1407 | free(line->elements[i].item); |
1408 | |
1409 | if ((i + 1) != line->numElements) { |
1410 | strcat(buf, line->elements[i].indent); |
1411 | free(line->elements[i].indent); |
1412 | } |
1413 | } |
1414 | |
1415 | line->elements[1].indent = |
1416 | line->elements[line->numElements - 1].indent; |
1417 | line->elements[1].item = buf; |
1418 | line->numElements = 2; |
1419 | } else if (line->type == LT_MENUENTRY && line->numElements > 3) { |
1420 | /* let --remove-kernel="TITLE=what" work */ |
1421 | len = 0; |
1422 | char *extras; |
1423 | char *title; |
1424 | /* initially unseen value */ |
1425 | char quote_char = '\0'; |
1426 | |
1427 | for (int i = 1; i < line->numElements; i++) { |
1428 | len += strlen(line->elements[i].item); |
1429 | len += strlen(line->elements[i].indent); |
1430 | } |
1431 | buf = malloc(len + 1); |
1432 | *buf = '\0'; |
1433 | |
1434 | /* allocate mem for extra flags. */ |
1435 | extras = malloc(len + 1); |
1436 | *extras = '\0'; |
1437 | |
1438 | /* get title. */ |
1439 | for (int i = 0; i < line->numElements; i++) { |
1440 | if (!strcmp |
1441 | (line->elements[i].item, "menuentry")) |
1442 | continue; |
1443 | if (isquote(*line->elements[i].item) |
1444 | && quote_char == '\0') { |
1445 | /* ensure we properly pair off quotes */ |
1446 | quote_char = *line->elements[i].item; |
1447 | title = line->elements[i].item + 1; |
1448 | } else { |
1449 | title = line->elements[i].item; |
1450 | } |
1451 | |
1452 | len = strlen(title); |
1453 | if (title[len - 1] == quote_char) { |
1454 | strncat(buf, title, len - 1); |
1455 | break; |
1456 | } else { |
1457 | strcat(buf, title); |
1458 | strcat(buf, line->elements[i].indent); |
1459 | } |
1460 | } |
1461 | |
1462 | /* get extras */ |
1463 | int count = 0; |
1464 | quote_char = '\0'; |
1465 | for (int i = 0; i < line->numElements; i++) { |
1466 | if (count >= 2) { |
1467 | strcat(extras, line->elements[i].item); |
1468 | strcat(extras, |
1469 | line->elements[i].indent); |
1470 | } |
1471 | |
1472 | if (!strcmp |
1473 | (line->elements[i].item, "menuentry")) |
1474 | continue; |
1475 | |
1476 | /* count ' or ", there should be two in menuentry line. */ |
1477 | if (isquote(*line->elements[i].item) |
1478 | && quote_char == '\0') { |
1479 | /* ensure we properly pair off quotes */ |
1480 | quote_char = *line->elements[i].item; |
1481 | count++; |
1482 | } |
1483 | |
1484 | len = strlen(line->elements[i].item); |
1485 | |
1486 | if (line->elements[i].item[len - 1] == |
1487 | quote_char) |
1488 | count++; |
1489 | |
1490 | /* ok, we get the final ' or ", others are extras. */ |
1491 | } |
1492 | line->elements[1].indent = |
1493 | line->elements[line->numElements - 2].indent; |
1494 | line->elements[1].item = buf; |
1495 | line->elements[2].indent = |
1496 | line->elements[line->numElements - 2].indent; |
1497 | line->elements[2].item = extras; |
1498 | line->numElements = 3; |
1499 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
1500 | /* Strip off any " which may be present; they'll be |
1501 | * put back on write. This is one of the few (the |
1502 | * only?) places that grubby canonicalizes the output |
1503 | */ |
1504 | if (line->numElements >= 2) { |
1505 | int last, len; |
1506 | |
1507 | if (isquote(*line->elements[1].item)) |
1508 | memmove(line->elements[1].item, |
1509 | line->elements[1].item + 1, |
1510 | strlen(line->elements[1].item + |
1511 | 1) + 1); |
1512 | |
1513 | last = line->numElements - 1; |
1514 | len = strlen(line->elements[last].item) - 1; |
1515 | if (isquote(line->elements[last].item[len])) |
1516 | line->elements[last].item[len] = '\0'; |
1517 | } |
1518 | } |
1519 | |
1520 | if (line->type == LT_DEFAULT && line->numElements == 2) { |
1521 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1522 | defaultLine = line; |
1523 | } |
1524 | |
1525 | /* If we find a generic config option which should live at the |
1526 | top of the file, move it there. Old versions of grubby were |
1527 | probably responsible for putting new images in the wrong |
1528 | place in front of it anyway. */ |
1529 | if (sawEntry && line->type == LT_GENERIC) { |
1530 | struct singleLine **l = &cfg->theLines; |
1531 | struct singleLine **last_nonws = &cfg->theLines; |
1532 | while (*l) { |
1533 | if ((*l)->type != LT_WHITESPACE) |
1534 | last_nonws = &((*l)->next); |
1535 | l = &((*l)->next); |
1536 | } |
1537 | line->next = *last_nonws; |
1538 | *last_nonws = line; |
1539 | movedLine = 1; |
1540 | continue; /* without setting 'last' */ |
1541 | } |
1542 | |
1543 | /* If a second line of whitespace happens after a generic |
1544 | * option which was moved, drop it. */ |
1545 | if (movedLine && line->type == LT_WHITESPACE |
1546 | && last->type == LT_WHITESPACE) { |
1547 | lineFree(line); |
1548 | free(line); |
1549 | movedLine = 0; |
1550 | continue; |
1551 | } |
1552 | movedLine = 0; |
1553 | |
1554 | if (sawEntry) { |
1555 | if (!entry->lines) |
1556 | entry->lines = line; |
1557 | else |
1558 | last->next = line; |
1559 | dbgPrintf("readConfig added %s to %p\n", |
1560 | getKeyByType(line->type, cfi), entry); |
1561 | |
1562 | /* we could have seen this outside of an entry... if |
1563 | * so, we ignore it like any other line we don't grok |
1564 | */ |
1565 | if (line->type == LT_ENTRY_END && sawEntry) |
1566 | sawEntry = 0; |
1567 | } else { |
1568 | if (!cfg->theLines) |
1569 | cfg->theLines = line; |
1570 | else |
1571 | last->next = line; |
1572 | dbgPrintf("readConfig added %s to cfg\n", |
1573 | getKeyByType(line->type, cfi)); |
1574 | } |
1575 | |
1576 | last = line; |
1577 | } |
1578 | |
1579 | free(incoming); |
1580 | |
1581 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1582 | if (defaultLine) { |
1583 | if (defaultLine->numElements > 2 && |
1584 | cfi->defaultSupportSaved && |
1585 | !strncmp(defaultLine->elements[2].item, |
1586 | "\"${saved_entry}\"", 16)) { |
1587 | cfg->cfi->defaultIsSaved = 1; |
1588 | cfg->defaultImage = DEFAULT_SAVED_GRUB2; |
1589 | if (cfg->cfi->getEnv) { |
1590 | char *defTitle = |
1591 | cfi->getEnv(cfg->cfi, "saved_entry"); |
1592 | if (defTitle) { |
1593 | int index = 0; |
1594 | if (isnumber(defTitle)) { |
1595 | index = atoi(defTitle); |
1596 | entry = |
1597 | findEntryByIndex(cfg, |
1598 | index); |
1599 | } else { |
1600 | entry = |
1601 | findEntryByTitle(cfg, |
1602 | defTitle, |
1603 | &index); |
1604 | } |
1605 | if (entry) |
1606 | cfg->defaultImage = index; |
1607 | } |
1608 | } |
1609 | } else if (cfi->defaultIsVariable) { |
1610 | if (defaultLine->numElements == 2) { |
1611 | char *value = defaultLine->elements[1].item + 8; |
1612 | while (*value && (*value == '"' || |
1613 | *value == '\'' || |
1614 | *value == ' ' || |
1615 | *value == '\t')) |
1616 | value++; |
1617 | cfg->defaultImage = strtol(value, &end, 10); |
1618 | while (*end && (*end == '"' || *end == '\'' || |
1619 | *end == ' ' || *end == '\t')) |
1620 | end++; |
1621 | if (*end) |
1622 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1623 | } else if (defaultLine->numElements == 3) { |
1624 | char *value = defaultLine->elements[2].item; |
1625 | while (*value && (*value == '"' || |
1626 | *value == '\'' || |
1627 | *value == ' ' || |
1628 | *value == '\t')) |
1629 | value++; |
1630 | cfg->defaultImage = strtol(value, &end, 10); |
1631 | while (*end && (*end == '"' || *end == '\'' || |
1632 | *end == ' ' || *end == '\t')) |
1633 | end++; |
1634 | if (*end) |
1635 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1636 | } |
1637 | } else if (cfi->defaultSupportSaved && |
1638 | !strncmp(defaultLine->elements[1].item, "saved", |
1639 | 5)) { |
1640 | cfg->defaultImage = DEFAULT_SAVED; |
1641 | } else if (cfi->defaultIsIndex) { |
1642 | cfg->defaultImage = |
1643 | strtol(defaultLine->elements[1].item, &end, 10); |
1644 | if (*end) |
1645 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1646 | } else if (defaultLine->numElements >= 2) { |
1647 | int i = 0; |
1648 | while ((entry = findEntryByIndex(cfg, i))) { |
1649 | for (line = entry->lines; line; |
1650 | line = line->next) |
1651 | if (line->type == LT_TITLE) |
1652 | break; |
1653 | |
1654 | if (!cfi->titleBracketed) { |
1655 | if (line && (line->numElements >= 2) && |
1656 | !strcmp(defaultLine->elements[1]. |
1657 | item, |
1658 | line->elements[1].item)) |
1659 | break; |
1660 | } else if (line) { |
1661 | if (!strcmp |
1662 | (defaultLine->elements[1].item, |
1663 | extractTitle(cfg, line))) |
1664 | break; |
1665 | } |
1666 | i++; |
1667 | entry = NULL; |
1668 | } |
1669 | |
1670 | if (entry) { |
1671 | cfg->defaultImage = i; |
1672 | } else { |
1673 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1674 | } |
1675 | } |
1676 | } else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) { |
1677 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); |
1678 | if (defTitle) { |
1679 | int index = 0; |
1680 | if (isnumber(defTitle)) { |
1681 | index = atoi(defTitle); |
1682 | entry = findEntryByIndex(cfg, index); |
1683 | } else { |
1684 | entry = findEntryByTitle(cfg, defTitle, &index); |
1685 | } |
1686 | if (entry) |
1687 | cfg->defaultImage = index; |
1688 | } |
1689 | } else { |
1690 | cfg->defaultImage = FIRST_ENTRY_INDEX; |
1691 | } |
1692 | |
1693 | return cfg; |
1694 | } |
1695 | |
1696 | static void writeDefault(FILE * out, char *indent, |
1697 | char *separator, struct grubConfig *cfg) |
1698 | { |
1699 | struct singleEntry *entry; |
1700 | struct singleLine *line; |
1701 | int i; |
1702 | |
1703 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) |
1704 | return; |
1705 | |
1706 | if (cfg->defaultImage == DEFAULT_SAVED) |
1707 | fprintf(out, "%sdefault%ssaved\n", indent, separator); |
1708 | else if (cfg->cfi->defaultIsSaved) { |
1709 | fprintf(out, "%sset default=\"${saved_entry}\"\n", indent); |
1710 | if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) { |
1711 | char *title; |
1712 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
1713 | line = getLineByType(LT_MENUENTRY, entry->lines); |
1714 | if (!line) |
1715 | line = getLineByType(LT_TITLE, entry->lines); |
1716 | if (line) { |
1717 | title = extractTitle(cfg, line); |
1718 | if (title) |
1719 | cfg->cfi->setEnv(cfg->cfi, |
1720 | "saved_entry", title); |
1721 | } |
1722 | } |
1723 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
1724 | if (cfg->cfi->defaultIsIndex) { |
1725 | if (cfg->cfi->defaultIsVariable) { |
1726 | fprintf(out, "%sset default=\"%d\"\n", indent, |
1727 | cfg->defaultImage); |
1728 | } else { |
1729 | fprintf(out, "%sdefault%s%d\n", indent, |
1730 | separator, cfg->defaultImage); |
1731 | } |
1732 | } else { |
1733 | int image = cfg->defaultImage; |
1734 | |
1735 | entry = cfg->entries; |
1736 | while (entry && entry->skip) |
1737 | entry = entry->next; |
1738 | |
1739 | i = 0; |
1740 | while (entry && i < image) { |
1741 | entry = entry->next; |
1742 | |
1743 | while (entry && entry->skip) |
1744 | entry = entry->next; |
1745 | i++; |
1746 | } |
1747 | |
1748 | if (!entry) |
1749 | return; |
1750 | |
1751 | line = getLineByType(LT_TITLE, entry->lines); |
1752 | |
1753 | if (line && line->numElements >= 2) |
1754 | fprintf(out, "%sdefault%s%s\n", indent, |
1755 | separator, line->elements[1].item); |
1756 | else if (line && (line->numElements == 1) |
1757 | && cfg->cfi->titleBracketed) { |
1758 | char *title = extractTitle(cfg, line); |
1759 | if (title) { |
1760 | fprintf(out, "%sdefault%s%s\n", indent, |
1761 | separator, title); |
1762 | free(title); |
1763 | } |
1764 | } |
1765 | } |
1766 | } |
1767 | } |
1768 | |
1769 | static int writeConfig(struct grubConfig *cfg, char *outName, |
1770 | const char *prefix) |
1771 | { |
1772 | FILE *out; |
1773 | struct singleLine *line; |
1774 | struct singleEntry *entry; |
1775 | char *tmpOutName; |
1776 | int needs = MAIN_DEFAULT; |
1777 | struct stat sb; |
1778 | int i; |
1779 | |
1780 | if (!strcmp(outName, "-")) { |
1781 | out = stdout; |
1782 | tmpOutName = NULL; |
1783 | } else { |
1784 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { |
1785 | char *buf; |
1786 | int len = 256; |
1787 | int rc; |
1788 | |
1789 | /* most likely the symlink is relative, so change our |
1790 | directory to the dir of the symlink */ |
1791 | char *dir = strdupa(outName); |
1792 | rc = chdir(dirname(dir)); |
1793 | do { |
1794 | buf = alloca(len + 1); |
1795 | rc = readlink(basename(outName), buf, len); |
1796 | if (rc == len) |
1797 | len += 256; |
1798 | } while (rc == len); |
1799 | |
1800 | if (rc < 0) { |
1801 | fprintf(stderr, |
1802 | _ |
1803 | ("grubby: error readlink link %s: %s\n"), |
1804 | outName, strerror(errno)); |
1805 | return 1; |
1806 | } |
1807 | |
1808 | outName = buf; |
1809 | outName[rc] = '\0'; |
1810 | } |
1811 | |
1812 | tmpOutName = alloca(strlen(outName) + 2); |
1813 | sprintf(tmpOutName, "%s-", outName); |
1814 | out = fopen(tmpOutName, "w"); |
1815 | if (!out) { |
1816 | fprintf(stderr, _("grubby: error creating %s: %s\n"), |
1817 | tmpOutName, strerror(errno)); |
1818 | return 1; |
1819 | } |
1820 | |
1821 | if (!stat(outName, &sb)) { |
1822 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { |
1823 | fprintf(stderr, |
1824 | _ |
1825 | ("grubby: error setting perms on %s: %s\n"), |
1826 | tmpOutName, strerror(errno)); |
1827 | fclose(out); |
1828 | unlink(tmpOutName); |
1829 | return 1; |
1830 | } |
1831 | } |
1832 | } |
1833 | |
1834 | line = cfg->theLines; |
1835 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1836 | while (line) { |
1837 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1838 | line->numElements == 3 && |
1839 | !strcmp(line->elements[1].item, defaultKw->key) && |
1840 | !is_special_grub2_variable(line->elements[2].item)) { |
1841 | writeDefault(out, line->indent, |
1842 | line->elements[0].indent, cfg); |
1843 | needs &= ~MAIN_DEFAULT; |
1844 | } else if (line->type == LT_DEFAULT) { |
1845 | writeDefault(out, line->indent, |
1846 | line->elements[0].indent, cfg); |
1847 | needs &= ~MAIN_DEFAULT; |
1848 | } else if (line->type == LT_FALLBACK) { |
1849 | if (cfg->fallbackImage > -1) |
1850 | fprintf(out, "%s%s%s%d\n", line->indent, |
1851 | line->elements[0].item, |
1852 | line->elements[0].indent, |
1853 | cfg->fallbackImage); |
1854 | } else { |
1855 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1856 | fprintf(stderr, |
1857 | _("grubby: error writing %s: %s\n"), |
1858 | tmpOutName, strerror(errno)); |
1859 | fclose(out); |
1860 | unlink(tmpOutName); |
1861 | return 1; |
1862 | } |
1863 | } |
1864 | |
1865 | line = line->next; |
1866 | } |
1867 | |
1868 | if (needs & MAIN_DEFAULT) { |
1869 | writeDefault(out, cfg->primaryIndent, "=", cfg); |
1870 | needs &= ~MAIN_DEFAULT; |
1871 | } |
1872 | |
1873 | i = 0; |
1874 | while ((entry = findEntryByIndex(cfg, i++))) { |
1875 | if (entry->skip) |
1876 | continue; |
1877 | |
1878 | line = entry->lines; |
1879 | while (line) { |
1880 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1881 | fprintf(stderr, |
1882 | _("grubby: error writing %s: %s\n"), |
1883 | tmpOutName, strerror(errno)); |
1884 | fclose(out); |
1885 | unlink(tmpOutName); |
1886 | return 1; |
1887 | } |
1888 | line = line->next; |
1889 | } |
1890 | } |
1891 | |
1892 | if (tmpOutName) { |
1893 | if (rename(tmpOutName, outName)) { |
1894 | fprintf(stderr, |
1895 | _("grubby: error moving %s to %s: %s\n"), |
1896 | tmpOutName, outName, strerror(errno)); |
1897 | unlink(outName); |
1898 | return 1; |
1899 | } |
1900 | } |
1901 | |
1902 | return 0; |
1903 | } |
1904 | |
1905 | static int numEntries(struct grubConfig *cfg) |
1906 | { |
1907 | int i = 0; |
1908 | struct singleEntry *entry; |
1909 | |
1910 | entry = cfg->entries; |
1911 | while (entry) { |
1912 | if (!entry->skip) |
1913 | i++; |
1914 | entry = entry->next; |
1915 | } |
1916 | return i; |
1917 | } |
1918 | |
1919 | static char *findDiskForRoot() |
1920 | { |
1921 | int fd; |
1922 | char buf[65536]; |
1923 | char *devname; |
1924 | char *chptr; |
1925 | int rc; |
1926 | |
1927 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { |
1928 | fprintf(stderr, "grubby: failed to open %s: %s\n", |
1929 | _PATH_MOUNTED, strerror(errno)); |
1930 | return NULL; |
1931 | } |
1932 | |
1933 | rc = read(fd, buf, sizeof(buf) - 1); |
1934 | if (rc <= 0) { |
1935 | fprintf(stderr, "grubby: failed to read %s: %s\n", |
1936 | _PATH_MOUNTED, strerror(errno)); |
1937 | close(fd); |
1938 | return NULL; |
1939 | } |
1940 | close(fd); |
1941 | buf[rc] = '\0'; |
1942 | chptr = buf; |
1943 | |
1944 | char *foundanswer = NULL; |
1945 | |
1946 | while (chptr && chptr != buf + rc) { |
1947 | devname = chptr; |
1948 | |
1949 | /* |
1950 | * The first column of a mtab entry is the device, but if the |
1951 | * entry is a special device it won't start with /, so move |
1952 | * on to the next line. |
1953 | */ |
1954 | if (*devname != '/') { |
1955 | chptr = strchr(chptr, '\n'); |
1956 | if (chptr) |
1957 | chptr++; |
1958 | continue; |
1959 | } |
1960 | |
1961 | /* Seek to the next space */ |
1962 | chptr = strchr(chptr, ' '); |
1963 | if (!chptr) { |
1964 | fprintf(stderr, "grubby: error parsing %s: %s\n", |
1965 | _PATH_MOUNTED, strerror(errno)); |
1966 | return NULL; |
1967 | } |
1968 | |
1969 | /* |
1970 | * The second column of a mtab entry is the mount point, we |
1971 | * are looking for '/' obviously. |
1972 | */ |
1973 | if (*(++chptr) == '/' && *(++chptr) == ' ') { |
1974 | /* remember the last / entry in mtab */ |
1975 | foundanswer = devname; |
1976 | } |
1977 | |
1978 | /* Next line */ |
1979 | chptr = strchr(chptr, '\n'); |
1980 | if (chptr) |
1981 | chptr++; |
1982 | } |
1983 | |
1984 | /* Return the last / entry found */ |
1985 | if (foundanswer) { |
1986 | chptr = strchr(foundanswer, ' '); |
1987 | *chptr = '\0'; |
1988 | return strdup(foundanswer); |
1989 | } |
1990 | |
1991 | return NULL; |
1992 | } |
1993 | |
1994 | void printEntry(struct singleEntry *entry, FILE * f) |
1995 | { |
1996 | int i; |
1997 | struct singleLine *line; |
1998 | |
1999 | for (line = entry->lines; line; line = line->next) { |
2000 | log_message(f, "DBG: %s", line->indent); |
2001 | for (i = 0; i < line->numElements; i++) { |
2002 | /* Need to handle this, because we strip the quotes from |
2003 | * menuentry when read it. */ |
2004 | if (line->type == LT_MENUENTRY && i == 1) { |
2005 | if (!isquote(*line->elements[i].item)) |
2006 | log_message(f, "\'%s\'", |
2007 | line->elements[i].item); |
2008 | else |
2009 | log_message(f, "%s", |
2010 | line->elements[i].item); |
2011 | log_message(f, "%s", line->elements[i].indent); |
2012 | |
2013 | continue; |
2014 | } |
2015 | |
2016 | log_message(f, "%s%s", |
2017 | line->elements[i].item, |
2018 | line->elements[i].indent); |
2019 | } |
2020 | log_message(f, "\n"); |
2021 | } |
2022 | } |
2023 | |
2024 | void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt, |
2025 | ...) |
2026 | { |
2027 | static int once; |
2028 | va_list argp, argq; |
2029 | |
2030 | va_start(argp, fmt); |
2031 | |
2032 | va_copy(argq, argp); |
2033 | if (!once) { |
2034 | log_time(NULL); |
2035 | log_message(NULL, "command line: %s\n", saved_command_line); |
2036 | } |
2037 | log_message(NULL, "DBG: Image entry %s: ", |
2038 | okay ? "succeeded" : "failed"); |
2039 | log_vmessage(NULL, fmt, argq); |
2040 | |
2041 | printEntry(entry, NULL); |
2042 | va_end(argq); |
2043 | |
2044 | if (!debug) { |
2045 | once = 1; |
2046 | va_end(argp); |
2047 | return; |
2048 | } |
2049 | |
2050 | if (okay) { |
2051 | va_end(argp); |
2052 | return; |
2053 | } |
2054 | |
2055 | if (!once) |
2056 | log_message(stderr, "DBG: command line: %s\n", |
2057 | saved_command_line); |
2058 | once = 1; |
2059 | fprintf(stderr, "DBG: Image entry failed: "); |
2060 | vfprintf(stderr, fmt, argp); |
2061 | printEntry(entry, stderr); |
2062 | va_end(argp); |
2063 | } |
2064 | |
2065 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
2066 | |
2067 | static int endswith(const char *s, char c) |
2068 | { |
2069 | int slen; |
2070 | |
2071 | if (!s || !s[0]) |
2072 | return 0; |
2073 | slen = strlen(s) - 1; |
2074 | |
2075 | return s[slen] == c; |
2076 | } |
2077 | |
2078 | int suitableImage(struct singleEntry *entry, const char *bootPrefix, |
2079 | int skipRemoved, int flags) |
2080 | { |
2081 | struct singleLine *line; |
2082 | char *fullName; |
2083 | int i; |
2084 | char *dev; |
2085 | char *rootspec; |
2086 | char *rootdev; |
2087 | |
2088 | if (skipRemoved && entry->skip) { |
2089 | notSuitablePrintf(entry, 0, "marked to skip\n"); |
2090 | return 0; |
2091 | } |
2092 | |
2093 | line = |
2094 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2095 | entry->lines); |
2096 | if (!line) { |
2097 | notSuitablePrintf(entry, 0, "no line found\n"); |
2098 | return 0; |
2099 | } |
2100 | if (line->numElements < 2) { |
2101 | notSuitablePrintf(entry, 0, "line has only %d elements\n", |
2102 | line->numElements); |
2103 | return 0; |
2104 | } |
2105 | |
2106 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
2107 | notSuitablePrintf(entry, 1, "\n"); |
2108 | return 1; |
2109 | } |
2110 | |
2111 | fullName = alloca(strlen(bootPrefix) + |
2112 | strlen(line->elements[1].item) + 1); |
2113 | rootspec = getRootSpecifier(line->elements[1].item); |
2114 | int rootspec_offset = rootspec ? strlen(rootspec) : 0; |
2115 | int hasslash = endswith(bootPrefix, '/') || |
2116 | beginswith(line->elements[1].item + rootspec_offset, '/'); |
2117 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", |
2118 | line->elements[1].item + rootspec_offset); |
2119 | if (access(fullName, R_OK)) { |
2120 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); |
2121 | return 0; |
2122 | } |
2123 | for (i = 2; i < line->numElements; i++) |
2124 | if (!strncasecmp(line->elements[i].item, "root=", 5)) |
2125 | break; |
2126 | if (i < line->numElements) { |
2127 | dev = line->elements[i].item + 5; |
2128 | } else { |
2129 | /* look for a lilo style LT_ROOT line */ |
2130 | line = getLineByType(LT_ROOT, entry->lines); |
2131 | |
2132 | if (line && line->numElements >= 2) { |
2133 | dev = line->elements[1].item; |
2134 | } else { |
2135 | /* didn't succeed in finding a LT_ROOT, let's try |
2136 | * LT_KERNELARGS. grub+multiboot uses LT_MBMODULE |
2137 | * for the args, so check that too. |
2138 | */ |
2139 | line = |
2140 | getLineByType(LT_KERNELARGS | LT_MBMODULE, |
2141 | entry->lines); |
2142 | |
2143 | /* failed to find one */ |
2144 | if (!line) { |
2145 | notSuitablePrintf(entry, 0, "no line found\n"); |
2146 | return 0; |
2147 | } |
2148 | |
2149 | for (i = 1; i < line->numElements; i++) |
2150 | if (!strncasecmp |
2151 | (line->elements[i].item, "root=", 5)) |
2152 | break; |
2153 | if (i < line->numElements) |
2154 | dev = line->elements[i].item + 5; |
2155 | else { |
2156 | notSuitablePrintf(entry, 0, |
2157 | "no root= entry found\n"); |
2158 | /* it failed too... can't find root= */ |
2159 | return 0; |
2160 | } |
2161 | } |
2162 | } |
2163 | |
2164 | dev = getpathbyspec(dev); |
2165 | if (!getpathbyspec(dev)) { |
2166 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", |
2167 | dev); |
2168 | return 0; |
2169 | } else |
2170 | dev = getpathbyspec(dev); |
2171 | |
2172 | rootdev = findDiskForRoot(); |
2173 | if (!rootdev) { |
2174 | notSuitablePrintf(entry, 0, "can't find root device\n"); |
2175 | return 0; |
2176 | } |
2177 | |
2178 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
2179 | notSuitablePrintf(entry, 0, |
2180 | "uuid missing: rootdev %s, dev %s\n", |
2181 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2182 | free(rootdev); |
2183 | return 0; |
2184 | } |
2185 | |
2186 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
2187 | notSuitablePrintf(entry, 0, |
2188 | "uuid mismatch: rootdev %s, dev %s\n", |
2189 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2190 | free(rootdev); |
2191 | return 0; |
2192 | } |
2193 | |
2194 | free(rootdev); |
2195 | notSuitablePrintf(entry, 1, "\n"); |
2196 | |
2197 | return 1; |
2198 | } |
2199 | |
2200 | /* returns the first match on or after the one pointed to by index (if index |
2201 | is not NULL) which is not marked as skip */ |
2202 | struct singleEntry *findEntryByPath(struct grubConfig *config, |
2203 | const char *kernel, const char *prefix, |
2204 | int *index) |
2205 | { |
2206 | struct singleEntry *entry = NULL; |
2207 | struct singleLine *line; |
2208 | int i; |
2209 | char *chptr; |
2210 | char *rootspec = NULL; |
2211 | enum lineType_e checkType = LT_KERNEL; |
2212 | |
2213 | if (isdigit(*kernel)) { |
2214 | int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); |
2215 | |
2216 | i = 0; |
2217 | indexVars[i] = strtol(kernel, &chptr, 10); |
2218 | while (*chptr == ',') { |
2219 | i++; |
2220 | kernel = chptr + 1; |
2221 | indexVars[i] = strtol(kernel, &chptr, 10); |
2222 | } |
2223 | |
2224 | if (*chptr) { |
2225 | /* can't parse it, bail */ |
2226 | return NULL; |
2227 | } |
2228 | |
2229 | indexVars[i + 1] = -1; |
2230 | |
2231 | i = 0; |
2232 | if (index) { |
2233 | while (i < *index) { |
2234 | i++; |
2235 | if (indexVars[i] == -1) |
2236 | return NULL; |
2237 | } |
2238 | } |
2239 | |
2240 | entry = findEntryByIndex(config, indexVars[i]); |
2241 | if (!entry) |
2242 | return NULL; |
2243 | |
2244 | line = |
2245 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
2246 | LT_KERNEL_16, entry->lines); |
2247 | if (!line) |
2248 | return NULL; |
2249 | |
2250 | if (index) |
2251 | *index = indexVars[i]; |
2252 | return entry; |
2253 | } |
2254 | |
2255 | if (!strcmp(kernel, "DEFAULT")) { |
2256 | if (index && *index > config->defaultImage) { |
2257 | entry = NULL; |
2258 | } else { |
2259 | entry = findEntryByIndex(config, config->defaultImage); |
2260 | if (entry && entry->skip) |
2261 | entry = NULL; |
2262 | else if (index) |
2263 | *index = config->defaultImage; |
2264 | } |
2265 | } else if (!strcmp(kernel, "ALL")) { |
2266 | if (index) |
2267 | i = *index; |
2268 | else |
2269 | i = 0; |
2270 | |
2271 | while ((entry = findEntryByIndex(config, i))) { |
2272 | if (!entry->skip) |
2273 | break; |
2274 | i++; |
2275 | } |
2276 | |
2277 | if (entry && index) |
2278 | *index = i; |
2279 | } else { |
2280 | if (index) |
2281 | i = *index; |
2282 | else |
2283 | i = 0; |
2284 | |
2285 | if (!strncmp(kernel, "TITLE=", 6)) { |
2286 | prefix = ""; |
2287 | checkType = LT_TITLE | LT_MENUENTRY; |
2288 | kernel += 6; |
2289 | } |
2290 | |
2291 | for (entry = findEntryByIndex(config, i); entry; |
2292 | entry = entry->next, i++) { |
2293 | if (entry->skip) |
2294 | continue; |
2295 | |
2296 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", |
2297 | checkType, kernel, entry); |
2298 | |
2299 | /* check all the lines matching checkType */ |
2300 | for (line = entry->lines; line; line = line->next) { |
2301 | enum lineType_e ct = checkType; |
2302 | if (entry->multiboot && checkType == LT_KERNEL) |
2303 | ct = LT_KERNEL | LT_KERNEL_EFI | |
2304 | LT_MBMODULE | LT_HYPER | |
2305 | LT_KERNEL_16; |
2306 | else if (checkType & LT_KERNEL) |
2307 | ct = checkType | LT_KERNEL_EFI | |
2308 | LT_KERNEL_16; |
2309 | line = getLineByType(ct, line); |
2310 | if (!line) |
2311 | break; /* not found in this entry */ |
2312 | |
2313 | if (line && line->type != LT_MENUENTRY && |
2314 | line->numElements >= 2) { |
2315 | rootspec = |
2316 | getRootSpecifier(line->elements[1]. |
2317 | item); |
2318 | if (!strcmp |
2319 | (line->elements[1].item + |
2320 | ((rootspec != |
2321 | NULL) ? strlen(rootspec) : 0), |
2322 | kernel + strlen(prefix))) |
2323 | break; |
2324 | } |
2325 | if (line->type == LT_MENUENTRY && |
2326 | !strcmp(line->elements[1].item, kernel)) |
2327 | break; |
2328 | } |
2329 | |
2330 | /* make sure this entry has a kernel identifier; this skips |
2331 | * non-Linux boot entries (could find netbsd etc, though, which is |
2332 | * unfortunate) |
2333 | */ |
2334 | if (line |
2335 | && getLineByType(LT_KERNEL | LT_HYPER | |
2336 | LT_KERNEL_EFI | LT_KERNEL_16, |
2337 | entry->lines)) |
2338 | break; /* found 'im! */ |
2339 | } |
2340 | |
2341 | if (index) |
2342 | *index = i; |
2343 | } |
2344 | |
2345 | return entry; |
2346 | } |
2347 | |
2348 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
2349 | int *index) |
2350 | { |
2351 | struct singleEntry *entry; |
2352 | struct singleLine *line; |
2353 | int i; |
2354 | char *newtitle; |
2355 | |
2356 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { |
2357 | if (index && i < *index) |
2358 | continue; |
2359 | line = getLineByType(LT_TITLE, entry->lines); |
2360 | if (!line) |
2361 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2362 | if (!line) |
2363 | continue; |
2364 | newtitle = grub2ExtractTitle(line); |
2365 | if (!newtitle) |
2366 | continue; |
2367 | if (!strcmp(title, newtitle)) |
2368 | break; |
2369 | } |
2370 | |
2371 | if (!entry) |
2372 | return NULL; |
2373 | |
2374 | if (index) |
2375 | *index = i; |
2376 | return entry; |
2377 | } |
2378 | |
2379 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index) |
2380 | { |
2381 | struct singleEntry *entry; |
2382 | |
2383 | entry = cfg->entries; |
2384 | while (index && entry) { |
2385 | entry = entry->next; |
2386 | index--; |
2387 | } |
2388 | |
2389 | return entry; |
2390 | } |
2391 | |
2392 | /* Find a good template to use for the new kernel. An entry is |
2393 | * good if the kernel and mkinitrd exist (even if the entry |
2394 | * is going to be removed). Try and use the default entry, but |
2395 | * if that doesn't work just take the first. If we can't find one, |
2396 | * bail. */ |
2397 | struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix, |
2398 | int *indexPtr, int skipRemoved, int flags) |
2399 | { |
2400 | struct singleEntry *entry, *entry2; |
2401 | int index; |
2402 | |
2403 | if (cfg->cfi->defaultIsSaved) { |
2404 | if (cfg->cfi->getEnv) { |
2405 | char *defTitle = |
2406 | cfg->cfi->getEnv(cfg->cfi, "saved_entry"); |
2407 | if (defTitle) { |
2408 | int index = 0; |
2409 | if (isnumber(defTitle)) { |
2410 | index = atoi(defTitle); |
2411 | entry = findEntryByIndex(cfg, index); |
2412 | } else { |
2413 | entry = |
2414 | findEntryByTitle(cfg, defTitle, |
2415 | &index); |
2416 | } |
2417 | if (entry |
2418 | && suitableImage(entry, prefix, skipRemoved, |
2419 | flags)) { |
2420 | cfg->defaultImage = index; |
2421 | if (indexPtr) |
2422 | *indexPtr = index; |
2423 | return entry; |
2424 | } |
2425 | } |
2426 | } |
2427 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
2428 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2429 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { |
2430 | if (indexPtr) |
2431 | *indexPtr = cfg->defaultImage; |
2432 | return entry; |
2433 | } |
2434 | } |
2435 | |
2436 | index = 0; |
2437 | while ((entry = findEntryByIndex(cfg, index))) { |
2438 | if (suitableImage(entry, prefix, skipRemoved, flags)) { |
2439 | int j; |
2440 | for (j = 0; j < index; j++) { |
2441 | entry2 = findEntryByIndex(cfg, j); |
2442 | if (entry2->skip) |
2443 | index--; |
2444 | } |
2445 | if (indexPtr) |
2446 | *indexPtr = index; |
2447 | |
2448 | return entry; |
2449 | } |
2450 | |
2451 | index++; |
2452 | } |
2453 | |
2454 | fprintf(stderr, |
2455 | _("grubby fatal error: unable to find a suitable template\n")); |
2456 | |
2457 | return NULL; |
2458 | } |
2459 | |
2460 | char *findBootPrefix(void) |
2461 | { |
2462 | struct stat sb, sb2; |
2463 | |
2464 | stat("/", &sb); |
2465 | #ifdef __ia64__ |
2466 | stat("/boot/efi/EFI/redhat/", &sb2); |
2467 | #else |
2468 | stat("/boot", &sb2); |
2469 | #endif |
2470 | |
2471 | if (sb.st_dev == sb2.st_dev) |
2472 | return strdup(""); |
2473 | |
2474 | #ifdef __ia64__ |
2475 | return strdup("/boot/efi/EFI/redhat/"); |
2476 | #else |
2477 | return strdup("/boot"); |
2478 | #endif |
2479 | } |
2480 | |
2481 | void markRemovedImage(struct grubConfig *cfg, const char *image, |
2482 | const char *prefix) |
2483 | { |
2484 | struct singleEntry *entry; |
2485 | |
2486 | if (!image) |
2487 | return; |
2488 | |
2489 | /* check and see if we're removing the default image */ |
2490 | if (isdigit(*image)) { |
2491 | entry = findEntryByPath(cfg, image, prefix, NULL); |
2492 | if (entry) |
2493 | entry->skip = 1; |
2494 | return; |
2495 | } |
2496 | |
2497 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2498 | entry->skip = 1; |
2499 | } |
2500 | |
2501 | void setDefaultImage(struct grubConfig *config, int isUserSpecifiedKernelPath, |
2502 | const char *defaultKernelPath, int newBootEntryIsDefault, |
2503 | const char *prefix, int flags, int newDefaultBootEntryIndex) |
2504 | { |
2505 | struct singleEntry *entry, *entry2, *newDefault; |
2506 | int i, j; |
2507 | |
2508 | if (newBootEntryIsDefault) { |
2509 | config->defaultImage = FIRST_ENTRY_INDEX; |
2510 | return; |
2511 | } else if ((newDefaultBootEntryIndex >= 0) && config->cfi->defaultIsIndex) { |
2512 | if (findEntryByIndex(config, newDefaultBootEntryIndex)) |
2513 | config->defaultImage = newDefaultBootEntryIndex; |
2514 | else |
2515 | config->defaultImage = NO_DEFAULT_ENTRY; |
2516 | return; |
2517 | } else if (defaultKernelPath) { |
2518 | i = 0; |
2519 | if (findEntryByPath(config, defaultKernelPath, prefix, &i)) { |
2520 | config->defaultImage = i; |
2521 | } else { |
2522 | config->defaultImage = NO_DEFAULT_ENTRY; |
2523 | return; |
2524 | } |
2525 | } |
2526 | |
2527 | /* defaultImage now points to what we'd like to use, but before any |
2528 | * order changes */ |
2529 | if ((config->defaultImage == DEFAULT_SAVED) || |
2530 | (config->defaultImage == DEFAULT_SAVED_GRUB2)) |
2531 | /* default is set to saved, we don't want to change it */ |
2532 | return; |
2533 | |
2534 | if (config->defaultImage >= FIRST_ENTRY_INDEX) |
2535 | entry = findEntryByIndex(config, config->defaultImage); |
2536 | else |
2537 | entry = NULL; |
2538 | |
2539 | if (entry && !entry->skip) { |
2540 | /* we can preserve the default */ |
2541 | if (isUserSpecifiedKernelPath) |
2542 | config->defaultImage++; |
2543 | |
2544 | /* count the number of entries erased before this one */ |
2545 | for (j = 0; j < config->defaultImage; j++) { |
2546 | entry2 = findEntryByIndex(config, j); |
2547 | if (entry2->skip) |
2548 | config->defaultImage--; |
2549 | } |
2550 | } else if (isUserSpecifiedKernelPath) { |
2551 | config->defaultImage = FIRST_ENTRY_INDEX; |
2552 | } else { |
2553 | /* Either we just erased the default (or the default line was |
2554 | * bad to begin with) and didn't put a new one in. We'll use |
2555 | * the first valid image. */ |
2556 | newDefault = |
2557 | findTemplate(config, prefix, &config->defaultImage, 1, |
2558 | flags); |
2559 | if (!newDefault) |
2560 | config->defaultImage = NO_DEFAULT_ENTRY; |
2561 | } |
2562 | } |
2563 | |
2564 | void setFallbackImage(struct grubConfig *config, int hasNew) |
2565 | { |
2566 | struct singleEntry *entry, *entry2; |
2567 | int j; |
2568 | |
2569 | if (config->fallbackImage == -1) |
2570 | return; |
2571 | |
2572 | entry = findEntryByIndex(config, config->fallbackImage); |
2573 | if (!entry || entry->skip) { |
2574 | config->fallbackImage = -1; |
2575 | return; |
2576 | } |
2577 | |
2578 | if (hasNew) |
2579 | config->fallbackImage++; |
2580 | |
2581 | /* count the number of entries erased before this one */ |
2582 | for (j = 0; j < config->fallbackImage; j++) { |
2583 | entry2 = findEntryByIndex(config, j); |
2584 | if (entry2->skip) |
2585 | config->fallbackImage--; |
2586 | } |
2587 | } |
2588 | |
2589 | void displayEntry(struct singleEntry *entry, const char *prefix, int index) |
2590 | { |
2591 | struct singleLine *line; |
2592 | char *root = NULL; |
2593 | int i; |
2594 | int j; |
2595 | |
2596 | printf("index=%d\n", index); |
2597 | |
2598 | line = |
2599 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2600 | entry->lines); |
2601 | if (!line) { |
2602 | printf("non linux entry\n"); |
2603 | return; |
2604 | } |
2605 | |
2606 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2607 | printf("kernel=%s\n", line->elements[1].item); |
2608 | else |
2609 | printf("kernel=%s%s\n", prefix, line->elements[1].item); |
2610 | |
2611 | if (line->numElements >= 3) { |
2612 | printf("args=\""); |
2613 | i = 2; |
2614 | while (i < line->numElements) { |
2615 | if (!strncmp(line->elements[i].item, "root=", 5)) { |
2616 | root = line->elements[i].item + 5; |
2617 | } else { |
2618 | printf("%s%s", line->elements[i].item, |
2619 | line->elements[i].indent); |
2620 | } |
2621 | |
2622 | i++; |
2623 | } |
2624 | printf("\"\n"); |
2625 | } else { |
2626 | line = getLineByType(LT_KERNELARGS, entry->lines); |
2627 | if (line) { |
2628 | char *s; |
2629 | |
2630 | printf("args=\""); |
2631 | i = 1; |
2632 | while (i < line->numElements) { |
2633 | if (!strncmp |
2634 | (line->elements[i].item, "root=", 5)) { |
2635 | root = line->elements[i].item + 5; |
2636 | } else { |
2637 | s = line->elements[i].item; |
2638 | |
2639 | printf("%s%s", s, |
2640 | line->elements[i].indent); |
2641 | } |
2642 | |
2643 | i++; |
2644 | } |
2645 | |
2646 | s = line->elements[i - 1].indent; |
2647 | printf("\"\n"); |
2648 | } |
2649 | } |
2650 | |
2651 | if (!root) { |
2652 | line = getLineByType(LT_ROOT, entry->lines); |
2653 | if (line && line->numElements >= 2) |
2654 | root = line->elements[1].item; |
2655 | } |
2656 | |
2657 | if (root) { |
2658 | char *s = alloca(strlen(root) + 1); |
2659 | |
2660 | strcpy(s, root); |
2661 | if (s[strlen(s) - 1] == '"') |
2662 | s[strlen(s) - 1] = '\0'; |
2663 | /* make sure the root doesn't have a trailing " */ |
2664 | printf("root=%s\n", s); |
2665 | } |
2666 | |
2667 | line = |
2668 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
2669 | entry->lines); |
2670 | |
2671 | if (line && line->numElements >= 2) { |
2672 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2673 | printf("initrd="); |
2674 | else |
2675 | printf("initrd=%s", prefix); |
2676 | |
2677 | for (i = 1; i < line->numElements; i++) |
2678 | printf("%s%s", line->elements[i].item, |
2679 | line->elements[i].indent); |
2680 | printf("\n"); |
2681 | } |
2682 | |
2683 | line = getLineByType(LT_TITLE, entry->lines); |
2684 | if (line) { |
2685 | printf("title=%s\n", line->elements[1].item); |
2686 | } else { |
2687 | char *title; |
2688 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2689 | if (line) { |
2690 | title = grub2ExtractTitle(line); |
2691 | if (title) |
2692 | printf("title=%s\n", title); |
2693 | } |
2694 | } |
2695 | |
2696 | for (j = 0, line = entry->lines; line; line = line->next) { |
2697 | if ((line->type & LT_MBMODULE) && line->numElements >= 2) { |
2698 | if (!strncmp |
2699 | (prefix, line->elements[1].item, strlen(prefix))) |
2700 | printf("mbmodule%d=", j); |
2701 | else |
2702 | printf("mbmodule%d=%s", j, prefix); |
2703 | |
2704 | for (i = 1; i < line->numElements; i++) |
2705 | printf("%s%s", line->elements[i].item, |
2706 | line->elements[i].indent); |
2707 | printf("\n"); |
2708 | j++; |
2709 | } |
2710 | } |
2711 | } |
2712 | |
2713 | int isSuseSystem(void) |
2714 | { |
2715 | const char *path; |
2716 | const static char default_path[] = "/etc/SuSE-release"; |
2717 | |
2718 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) |
2719 | path = default_path; |
2720 | |
2721 | if (!access(path, R_OK)) |
2722 | return 1; |
2723 | return 0; |
2724 | } |
2725 | |
2726 | int isSuseGrubConf(const char *path) |
2727 | { |
2728 | FILE *grubConf; |
2729 | char *line = NULL; |
2730 | size_t len = 0, res = 0; |
2731 | |
2732 | grubConf = fopen(path, "r"); |
2733 | if (!grubConf) { |
2734 | dbgPrintf("Could not open SuSE configuration file '%s'\n", |
2735 | path); |
2736 | return 0; |
2737 | } |
2738 | |
2739 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2740 | if (!strncmp(line, "setup", 5)) { |
2741 | fclose(grubConf); |
2742 | free(line); |
2743 | return 1; |
2744 | } |
2745 | } |
2746 | |
2747 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", |
2748 | path); |
2749 | |
2750 | fclose(grubConf); |
2751 | free(line); |
2752 | return 0; |
2753 | } |
2754 | |
2755 | int suseGrubConfGetLba(const char *path, int *lbaPtr) |
2756 | { |
2757 | FILE *grubConf; |
2758 | char *line = NULL; |
2759 | size_t res = 0, len = 0; |
2760 | |
2761 | if (!path) |
2762 | return 1; |
2763 | if (!lbaPtr) |
2764 | return 1; |
2765 | |
2766 | grubConf = fopen(path, "r"); |
2767 | if (!grubConf) |
2768 | return 1; |
2769 | |
2770 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2771 | if (line[res - 1] == '\n') |
2772 | line[res - 1] = '\0'; |
2773 | else if (len > res) |
2774 | line[res] = '\0'; |
2775 | else { |
2776 | line = realloc(line, res + 1); |
2777 | line[res] = '\0'; |
2778 | } |
2779 | |
2780 | if (!strncmp(line, "setup", 5)) { |
2781 | if (strstr(line, "--force-lba")) { |
2782 | *lbaPtr = 1; |
2783 | } else { |
2784 | *lbaPtr = 0; |
2785 | } |
2786 | dbgPrintf("lba: %i\n", *lbaPtr); |
2787 | break; |
2788 | } |
2789 | } |
2790 | |
2791 | free(line); |
2792 | fclose(grubConf); |
2793 | return 0; |
2794 | } |
2795 | |
2796 | int suseGrubConfGetInstallDevice(const char *path, char **devicePtr) |
2797 | { |
2798 | FILE *grubConf; |
2799 | char *line = NULL; |
2800 | size_t res = 0, len = 0; |
2801 | char *lastParamPtr = NULL; |
2802 | char *secLastParamPtr = NULL; |
2803 | char installDeviceNumber = '\0'; |
2804 | char *bounds = NULL; |
2805 | |
2806 | if (!path) |
2807 | return 1; |
2808 | if (!devicePtr) |
2809 | return 1; |
2810 | |
2811 | grubConf = fopen(path, "r"); |
2812 | if (!grubConf) |
2813 | return 1; |
2814 | |
2815 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2816 | if (strncmp(line, "setup", 5)) |
2817 | continue; |
2818 | |
2819 | if (line[res - 1] == '\n') |
2820 | line[res - 1] = '\0'; |
2821 | else if (len > res) |
2822 | line[res] = '\0'; |
2823 | else { |
2824 | line = realloc(line, res + 1); |
2825 | line[res] = '\0'; |
2826 | } |
2827 | |
2828 | lastParamPtr = bounds = line + res; |
2829 | |
2830 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ |
2831 | while (!isspace(*lastParamPtr)) |
2832 | lastParamPtr--; |
2833 | lastParamPtr++; |
2834 | |
2835 | secLastParamPtr = lastParamPtr - 2; |
2836 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); |
2837 | |
2838 | if (lastParamPtr + 3 > bounds) { |
2839 | dbgPrintf("lastParamPtr going over boundary"); |
2840 | fclose(grubConf); |
2841 | free(line); |
2842 | return 1; |
2843 | } |
2844 | if (!strncmp(lastParamPtr, "(hd", 3)) |
2845 | lastParamPtr += 3; |
2846 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); |
2847 | |
2848 | /* |
2849 | * Second last parameter will decide wether last parameter is |
2850 | * an IMAGE_DEVICE or INSTALL_DEVICE |
2851 | */ |
2852 | while (!isspace(*secLastParamPtr)) |
2853 | secLastParamPtr--; |
2854 | secLastParamPtr++; |
2855 | |
2856 | if (secLastParamPtr + 3 > bounds) { |
2857 | dbgPrintf("secLastParamPtr going over boundary"); |
2858 | fclose(grubConf); |
2859 | free(line); |
2860 | return 1; |
2861 | } |
2862 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); |
2863 | if (!strncmp(secLastParamPtr, "(hd", 3)) { |
2864 | secLastParamPtr += 3; |
2865 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); |
2866 | installDeviceNumber = *secLastParamPtr; |
2867 | } else { |
2868 | installDeviceNumber = *lastParamPtr; |
2869 | } |
2870 | |
2871 | *devicePtr = malloc(6); |
2872 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); |
2873 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); |
2874 | fclose(grubConf); |
2875 | free(line); |
2876 | return 0; |
2877 | } |
2878 | |
2879 | free(line); |
2880 | fclose(grubConf); |
2881 | return 1; |
2882 | } |
2883 | |
2884 | int grubGetBootFromDeviceMap(const char *device, char **bootPtr) |
2885 | { |
2886 | FILE *deviceMap; |
2887 | char *line = NULL; |
2888 | size_t res = 0, len = 0; |
2889 | char *devicePtr; |
2890 | char *bounds = NULL; |
2891 | const char *path; |
2892 | const static char default_path[] = "/boot/grub/device.map"; |
2893 | |
2894 | if (!device) |
2895 | return 1; |
2896 | if (!bootPtr) |
2897 | return 1; |
2898 | |
2899 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) |
2900 | path = default_path; |
2901 | |
2902 | dbgPrintf("opening grub device.map file from: %s\n", path); |
2903 | deviceMap = fopen(path, "r"); |
2904 | if (!deviceMap) |
2905 | return 1; |
2906 | |
2907 | while ((res = getline(&line, &len, deviceMap)) != -1) { |
2908 | if (!strncmp(line, "#", 1)) |
2909 | continue; |
2910 | |
2911 | if (line[res - 1] == '\n') |
2912 | line[res - 1] = '\0'; |
2913 | else if (len > res) |
2914 | line[res] = '\0'; |
2915 | else { |
2916 | line = realloc(line, res + 1); |
2917 | line[res] = '\0'; |
2918 | } |
2919 | |
2920 | devicePtr = line; |
2921 | bounds = line + res; |
2922 | |
2923 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) |
2924 | devicePtr++; |
2925 | dbgPrintf("device: %s\n", devicePtr); |
2926 | |
2927 | if (!strncmp(devicePtr, device, strlen(device))) { |
2928 | devicePtr += strlen(device); |
2929 | while (isspace(*devicePtr) |
2930 | && ((devicePtr + 1) <= bounds)) |
2931 | devicePtr++; |
2932 | |
2933 | *bootPtr = strdup(devicePtr); |
2934 | break; |
2935 | } |
2936 | } |
2937 | |
2938 | free(line); |
2939 | fclose(deviceMap); |
2940 | return 0; |
2941 | } |
2942 | |
2943 | int suseGrubConfGetBoot(const char *path, char **bootPtr) |
2944 | { |
2945 | char *grubDevice; |
2946 | |
2947 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) |
2948 | dbgPrintf("error looking for grub installation device\n"); |
2949 | else |
2950 | dbgPrintf("grubby installation device: %s\n", grubDevice); |
2951 | |
2952 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) |
2953 | dbgPrintf("error looking for grub boot device\n"); |
2954 | else |
2955 | dbgPrintf("grubby boot device: %s\n", *bootPtr); |
2956 | |
2957 | free(grubDevice); |
2958 | return 0; |
2959 | } |
2960 | |
2961 | int parseSuseGrubConf(int *lbaPtr, char **bootPtr) |
2962 | { |
2963 | /* |
2964 | * This SuSE grub configuration file at this location is not your |
2965 | * average grub configuration file, but instead the grub commands |
2966 | * used to setup grub on that system. |
2967 | */ |
2968 | const char *path; |
2969 | const static char default_path[] = "/etc/grub.conf"; |
2970 | |
2971 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) |
2972 | path = default_path; |
2973 | |
2974 | if (!isSuseGrubConf(path)) |
2975 | return 1; |
2976 | |
2977 | if (lbaPtr) { |
2978 | *lbaPtr = 0; |
2979 | if (suseGrubConfGetLba(path, lbaPtr)) |
2980 | return 1; |
2981 | } |
2982 | |
2983 | if (bootPtr) { |
2984 | *bootPtr = NULL; |
2985 | suseGrubConfGetBoot(path, bootPtr); |
2986 | } |
2987 | |
2988 | return 0; |
2989 | } |
2990 | |
2991 | int parseSysconfigGrub(int *lbaPtr, char **bootPtr) |
2992 | { |
2993 | FILE *in; |
2994 | char buf[1024]; |
2995 | char *chptr; |
2996 | char *start; |
2997 | char *param; |
2998 | |
2999 | in = fopen("/etc/sysconfig/grub", "r"); |
3000 | if (!in) |
3001 | return 1; |
3002 | |
3003 | if (lbaPtr) |
3004 | *lbaPtr = 0; |
3005 | if (bootPtr) |
3006 | *bootPtr = NULL; |
3007 | |
3008 | while (fgets(buf, sizeof(buf), in)) { |
3009 | start = buf; |
3010 | while (isspace(*start)) |
3011 | start++; |
3012 | if (*start == '#') |
3013 | continue; |
3014 | |
3015 | chptr = strchr(start, '='); |
3016 | if (!chptr) |
3017 | continue; |
3018 | chptr--; |
3019 | while (*chptr && isspace(*chptr)) |
3020 | chptr--; |
3021 | chptr++; |
3022 | *chptr = '\0'; |
3023 | |
3024 | param = chptr + 1; |
3025 | while (*param && isspace(*param)) |
3026 | param++; |
3027 | if (*param == '=') { |
3028 | param++; |
3029 | while (*param && isspace(*param)) |
3030 | param++; |
3031 | } |
3032 | |
3033 | chptr = param; |
3034 | while (*chptr && !isspace(*chptr)) |
3035 | chptr++; |
3036 | *chptr = '\0'; |
3037 | |
3038 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) |
3039 | *lbaPtr = 1; |
3040 | else if (!strcmp(start, "boot") && bootPtr) |
3041 | *bootPtr = strdup(param); |
3042 | } |
3043 | |
3044 | fclose(in); |
3045 | |
3046 | return 0; |
3047 | } |
3048 | |
3049 | void dumpSysconfigGrub(void) |
3050 | { |
3051 | char *boot = NULL; |
3052 | int lba; |
3053 | |
3054 | if (isSuseSystem()) { |
3055 | if (parseSuseGrubConf(&lba, &boot)) { |
3056 | free(boot); |
3057 | return; |
3058 | } |
3059 | } else { |
3060 | if (parseSysconfigGrub(&lba, &boot)) { |
3061 | free(boot); |
3062 | return; |
3063 | } |
3064 | } |
3065 | |
3066 | if (lba) |
3067 | printf("lba\n"); |
3068 | if (boot) { |
3069 | printf("boot=%s\n", boot); |
3070 | free(boot); |
3071 | } |
3072 | } |
3073 | |
3074 | int displayInfo(struct grubConfig *config, char *kernel, const char *prefix) |
3075 | { |
3076 | int i = 0; |
3077 | struct singleEntry *entry; |
3078 | struct singleLine *line; |
3079 | |
3080 | entry = findEntryByPath(config, kernel, prefix, &i); |
3081 | if (!entry) { |
3082 | fprintf(stderr, _("grubby: kernel not found\n")); |
3083 | return 1; |
3084 | } |
3085 | |
3086 | /* this is a horrible hack to support /etc/sysconfig/grub; there must |
3087 | be a better way */ |
3088 | if (config->cfi == &grubConfigType) { |
3089 | dumpSysconfigGrub(); |
3090 | } else { |
3091 | line = getLineByType(LT_BOOT, config->theLines); |
3092 | if (line && line->numElements >= 1) { |
3093 | printf("boot=%s\n", line->elements[1].item); |
3094 | } |
3095 | |
3096 | line = getLineByType(LT_LBA, config->theLines); |
3097 | if (line) |
3098 | printf("lba\n"); |
3099 | } |
3100 | |
3101 | displayEntry(entry, prefix, i); |
3102 | |
3103 | i++; |
3104 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { |
3105 | displayEntry(entry, prefix, i); |
3106 | i++; |
3107 | } |
3108 | |
3109 | return 0; |
3110 | } |
3111 | |
3112 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
3113 | struct singleLine *tmplLine, |
3114 | struct singleLine *prevLine, |
3115 | const char *val, struct configFileInfo *cfi) |
3116 | { |
3117 | struct singleLine *newLine = lineDup(tmplLine); |
3118 | |
3119 | if (isEfi && cfi == &grub2ConfigType) { |
3120 | enum lineType_e old = newLine->type; |
3121 | newLine->type = preferredLineType(newLine->type, cfi); |
3122 | if (old != newLine->type) |
3123 | newLine->elements[0].item = |
3124 | getKeyByType(newLine->type, cfi); |
3125 | } |
3126 | |
3127 | if (val) { |
3128 | /* override the inherited value with our own. |
3129 | * This is a little weak because it only applies to elements[1] |
3130 | */ |
3131 | if (newLine->numElements > 1) |
3132 | removeElement(newLine, 1); |
3133 | insertElement(newLine, val, 1, cfi); |
3134 | |
3135 | /* but try to keep the rootspec from the template... sigh */ |
3136 | if (tmplLine-> |
3137 | type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD | |
3138 | LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 | |
3139 | LT_INITRD_16)) { |
3140 | char *rootspec = |
3141 | getRootSpecifier(tmplLine->elements[1].item); |
3142 | if (rootspec != NULL) { |
3143 | free(newLine->elements[1].item); |
3144 | newLine->elements[1].item = |
3145 | sdupprintf("%s%s", rootspec, val); |
3146 | } |
3147 | } |
3148 | } |
3149 | |
3150 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? |
3151 | newLine->elements[0].item : ""); |
3152 | |
3153 | if (!entry->lines) { |
3154 | /* first one on the list */ |
3155 | entry->lines = newLine; |
3156 | } else if (prevLine) { |
3157 | /* add after prevLine */ |
3158 | newLine->next = prevLine->next; |
3159 | prevLine->next = newLine; |
3160 | } |
3161 | |
3162 | return newLine; |
3163 | } |
3164 | |
3165 | /* val may be NULL */ |
3166 | struct singleLine *addLine(struct singleEntry *entry, |
3167 | struct configFileInfo *cfi, |
3168 | enum lineType_e type, char *defaultIndent, |
3169 | const char *val) |
3170 | { |
3171 | struct singleLine *line, *prev; |
3172 | struct keywordTypes *kw; |
3173 | struct singleLine tmpl; |
3174 | |
3175 | /* NB: This function shouldn't allocate items on the heap, rather on |
3176 | * the stack since it calls addLineTmpl which will make copies. |
3177 | */ |
3178 | if (type == LT_TITLE && cfi->titleBracketed) { |
3179 | /* we're doing a bracketed title (zipl) */ |
3180 | tmpl.type = type; |
3181 | tmpl.numElements = 1; |
3182 | tmpl.elements = alloca(sizeof(*tmpl.elements)); |
3183 | tmpl.elements[0].item = alloca(strlen(val) + 3); |
3184 | sprintf(tmpl.elements[0].item, "[%s]", val); |
3185 | tmpl.elements[0].indent = ""; |
3186 | val = NULL; |
3187 | } else if (type == LT_MENUENTRY) { |
3188 | char *lineend = "--class gnu-linux --class gnu --class os {"; |
3189 | if (!val) { |
3190 | fprintf(stderr, |
3191 | "Line type LT_MENUENTRY requires a value\n"); |
3192 | abort(); |
3193 | } |
3194 | kw = getKeywordByType(type, cfi); |
3195 | if (!kw) { |
3196 | fprintf(stderr, |
3197 | "Looking up keyword for unknown type %d\n", |
3198 | type); |
3199 | abort(); |
3200 | } |
3201 | tmpl.indent = ""; |
3202 | tmpl.type = type; |
3203 | tmpl.numElements = 3; |
3204 | tmpl.elements = |
3205 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3206 | tmpl.elements[0].item = kw->key; |
3207 | tmpl.elements[0].indent = alloca(2); |
3208 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3209 | tmpl.elements[1].item = (char *)val; |
3210 | tmpl.elements[1].indent = alloca(2); |
3211 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); |
3212 | tmpl.elements[2].item = alloca(strlen(lineend) + 1); |
3213 | strcpy(tmpl.elements[2].item, lineend); |
3214 | tmpl.elements[2].indent = ""; |
3215 | } else { |
3216 | kw = getKeywordByType(type, cfi); |
3217 | if (!kw) { |
3218 | fprintf(stderr, |
3219 | "Looking up keyword for unknown type %d\n", |
3220 | type); |
3221 | abort(); |
3222 | } |
3223 | tmpl.type = type; |
3224 | tmpl.numElements = val ? 2 : 1; |
3225 | tmpl.elements = |
3226 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3227 | tmpl.elements[0].item = kw->key; |
3228 | tmpl.elements[0].indent = alloca(2); |
3229 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3230 | if (val) { |
3231 | tmpl.elements[1].item = (char *)val; |
3232 | tmpl.elements[1].indent = ""; |
3233 | } |
3234 | } |
3235 | |
3236 | /* The last non-empty line gives us the indention to us and the line |
3237 | * to insert after. Note that comments are considered empty lines, |
3238 | * which may not be ideal? If there are no lines or we are looking at |
3239 | * the first line, we use defaultIndent (the first line is normally |
3240 | * indented differently from the rest) */ |
3241 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
3242 | if (line->numElements) |
3243 | prev = line; |
3244 | /* fall back on the last line if prev isn't otherwise set */ |
3245 | if (!line->next && !prev) |
3246 | prev = line; |
3247 | } |
3248 | |
3249 | struct singleLine *menuEntry; |
3250 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); |
3251 | if (tmpl.type == LT_ENTRY_END) { |
3252 | if (menuEntry) |
3253 | tmpl.indent = menuEntry->indent; |
3254 | else |
3255 | tmpl.indent = defaultIndent ? : ""; |
3256 | } else if (tmpl.type != LT_MENUENTRY) { |
3257 | if (menuEntry) |
3258 | tmpl.indent = "\t"; |
3259 | else if (prev == entry->lines) |
3260 | tmpl.indent = defaultIndent ? : ""; |
3261 | else |
3262 | tmpl.indent = prev->indent; |
3263 | } |
3264 | |
3265 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
3266 | } |
3267 | |
3268 | void removeLine(struct singleEntry *entry, struct singleLine *line) |
3269 | { |
3270 | struct singleLine *prev; |
3271 | int i; |
3272 | |
3273 | for (i = 0; i < line->numElements; i++) { |
3274 | free(line->elements[i].item); |
3275 | free(line->elements[i].indent); |
3276 | } |
3277 | free(line->elements); |
3278 | free(line->indent); |
3279 | |
3280 | if (line == entry->lines) { |
3281 | entry->lines = line->next; |
3282 | } else { |
3283 | prev = entry->lines; |
3284 | while (prev->next != line) |
3285 | prev = prev->next; |
3286 | prev->next = line->next; |
3287 | } |
3288 | |
3289 | free(line); |
3290 | } |
3291 | |
3292 | static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi) |
3293 | { |
3294 | struct singleLine newLine = { |
3295 | .indent = tmplLine->indent, |
3296 | .type = tmplLine->type, |
3297 | .next = tmplLine->next, |
3298 | }; |
3299 | int firstQuotedItem = -1; |
3300 | int quoteLen = 0; |
3301 | int j; |
3302 | int element = 0; |
3303 | char *c; |
3304 | |
3305 | c = malloc(strlen(tmplLine->elements[0].item) + 1); |
3306 | strcpy(c, tmplLine->elements[0].item); |
3307 | insertElement(&newLine, c, element++, cfi); |
3308 | free(c); |
3309 | c = NULL; |
3310 | |
3311 | for (j = 1; j < tmplLine->numElements; j++) { |
3312 | if (firstQuotedItem == -1) { |
3313 | quoteLen += strlen(tmplLine->elements[j].item); |
3314 | |
3315 | if (isquote(tmplLine->elements[j].item[0])) { |
3316 | firstQuotedItem = j; |
3317 | quoteLen += |
3318 | strlen(tmplLine->elements[j].indent); |
3319 | } else { |
3320 | c = malloc(quoteLen + 1); |
3321 | strcpy(c, tmplLine->elements[j].item); |
3322 | insertElement(&newLine, c, element++, cfi); |
3323 | free(c); |
3324 | quoteLen = 0; |
3325 | } |
3326 | } else { |
3327 | int itemlen = strlen(tmplLine->elements[j].item); |
3328 | quoteLen += itemlen; |
3329 | quoteLen += strlen(tmplLine->elements[j].indent); |
3330 | |
3331 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { |
3332 | c = malloc(quoteLen + 1); |
3333 | c[0] = '\0'; |
3334 | for (int i = firstQuotedItem; i < j + 1; i++) { |
3335 | strcat(c, tmplLine->elements[i].item); |
3336 | strcat(c, tmplLine->elements[i].indent); |
3337 | } |
3338 | insertElement(&newLine, c, element++, cfi); |
3339 | free(c); |
3340 | |
3341 | firstQuotedItem = -1; |
3342 | quoteLen = 0; |
3343 | } |
3344 | } |
3345 | } |
3346 | while (tmplLine->numElements) |
3347 | removeElement(tmplLine, 0); |
3348 | if (tmplLine->elements) |
3349 | free(tmplLine->elements); |
3350 | |
3351 | tmplLine->numElements = newLine.numElements; |
3352 | tmplLine->elements = newLine.elements; |
3353 | } |
3354 | |
3355 | static void insertElement(struct singleLine *line, |
3356 | const char *item, int insertHere, |
3357 | struct configFileInfo *cfi) |
3358 | { |
3359 | struct keywordTypes *kw; |
3360 | char indent[2] = ""; |
3361 | |
3362 | /* sanity check */ |
3363 | if (insertHere > line->numElements) { |
3364 | dbgPrintf |
3365 | ("insertElement() adjusting insertHere from %d to %d\n", |
3366 | insertHere, line->numElements); |
3367 | insertHere = line->numElements; |
3368 | } |
3369 | |
3370 | line->elements = realloc(line->elements, (line->numElements + 1) * |
3371 | sizeof(*line->elements)); |
3372 | memmove(&line->elements[insertHere + 1], |
3373 | &line->elements[insertHere], |
3374 | (line->numElements - insertHere) * sizeof(*line->elements)); |
3375 | line->elements[insertHere].item = strdup(item); |
3376 | |
3377 | kw = getKeywordByType(line->type, cfi); |
3378 | |
3379 | if (line->numElements == 0) { |
3380 | indent[0] = '\0'; |
3381 | } else if (insertHere == 0) { |
3382 | indent[0] = kw->nextChar; |
3383 | } else if (kw->separatorChar != '\0') { |
3384 | indent[0] = kw->separatorChar; |
3385 | } else { |
3386 | indent[0] = ' '; |
3387 | } |
3388 | |
3389 | if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') { |
3390 | /* move the end-of-line forward */ |
3391 | line->elements[insertHere].indent = |
3392 | line->elements[insertHere - 1].indent; |
3393 | line->elements[insertHere - 1].indent = strdup(indent); |
3394 | } else { |
3395 | line->elements[insertHere].indent = strdup(indent); |
3396 | } |
3397 | |
3398 | line->numElements++; |
3399 | |
3400 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", |
3401 | line->elements[0].item, |
3402 | line->elements[insertHere].item, |
3403 | line->elements[insertHere].indent, insertHere); |
3404 | } |
3405 | |
3406 | static void removeElement(struct singleLine *line, int removeHere) |
3407 | { |
3408 | int i; |
3409 | |
3410 | /* sanity check */ |
3411 | if (removeHere >= line->numElements) |
3412 | return; |
3413 | |
3414 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, |
3415 | removeHere, line->elements[removeHere].item); |
3416 | |
3417 | free(line->elements[removeHere].item); |
3418 | |
3419 | if (removeHere > 1) { |
3420 | /* previous argument gets this argument's post-indentation */ |
3421 | free(line->elements[removeHere - 1].indent); |
3422 | line->elements[removeHere - 1].indent = |
3423 | line->elements[removeHere].indent; |
3424 | } else { |
3425 | free(line->elements[removeHere].indent); |
3426 | } |
3427 | |
3428 | /* now collapse the array, but don't bother to realloc smaller */ |
3429 | for (i = removeHere; i < line->numElements - 1; i++) |
3430 | line->elements[i] = line->elements[i + 1]; |
3431 | |
3432 | line->numElements--; |
3433 | } |
3434 | |
3435 | int argMatch(const char *one, const char *two) |
3436 | { |
3437 | char *first, *second; |
3438 | char *chptr; |
3439 | |
3440 | first = strcpy(alloca(strlen(one) + 1), one); |
3441 | second = strcpy(alloca(strlen(two) + 1), two); |
3442 | |
3443 | chptr = strchr(first, '='); |
3444 | if (chptr) |
3445 | *chptr = '\0'; |
3446 | |
3447 | chptr = strchr(second, '='); |
3448 | if (chptr) |
3449 | *chptr = '\0'; |
3450 | |
3451 | return strcmp(first, second); |
3452 | } |
3453 | |
3454 | int updateActualImage(struct grubConfig *cfg, const char *image, |
3455 | const char *prefix, const char *addArgs, |
3456 | const char *removeArgs, int multibootArgs) |
3457 | { |
3458 | struct singleEntry *entry; |
3459 | struct singleLine *line, *rootLine; |
3460 | int index = 0; |
3461 | int i, k; |
3462 | const char **newArgs, **oldArgs; |
3463 | const char **arg; |
3464 | int useKernelArgs, useRoot; |
3465 | int firstElement; |
3466 | int *usedElements; |
3467 | int doreplace; |
3468 | |
3469 | if (!image) |
3470 | return 0; |
3471 | |
3472 | if (!addArgs) { |
3473 | newArgs = malloc(sizeof(*newArgs)); |
3474 | *newArgs = NULL; |
3475 | } else { |
3476 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { |
3477 | fprintf(stderr, |
3478 | _("grubby: error separating arguments '%s'\n"), |
3479 | addArgs); |
3480 | return 1; |
3481 | } |
3482 | } |
3483 | |
3484 | if (!removeArgs) { |
3485 | oldArgs = malloc(sizeof(*oldArgs)); |
3486 | *oldArgs = NULL; |
3487 | } else { |
3488 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { |
3489 | fprintf(stderr, |
3490 | _("grubby: error separating arguments '%s'\n"), |
3491 | removeArgs); |
3492 | free(newArgs); |
3493 | return 1; |
3494 | } |
3495 | } |
3496 | |
3497 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3498 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); |
3499 | |
3500 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3501 | && !multibootArgs); |
3502 | |
3503 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3504 | |
3505 | if (multibootArgs && !entry->multiboot) |
3506 | continue; |
3507 | |
3508 | /* Determine where to put the args. If this config supports |
3509 | * LT_KERNELARGS, use that. Otherwise use |
3510 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. |
3511 | */ |
3512 | if (useKernelArgs) { |
3513 | line = getLineByType(LT_KERNELARGS, entry->lines); |
3514 | if (!line) { |
3515 | /* no LT_KERNELARGS, need to add it */ |
3516 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, |
3517 | cfg->secondaryIndent, NULL); |
3518 | } |
3519 | firstElement = 1; |
3520 | |
3521 | } else if (multibootArgs) { |
3522 | line = getLineByType(LT_HYPER, entry->lines); |
3523 | if (!line) { |
3524 | /* a multiboot entry without LT_HYPER? */ |
3525 | continue; |
3526 | } |
3527 | firstElement = 2; |
3528 | |
3529 | } else { |
3530 | line = |
3531 | getLineByType(LT_KERNEL | LT_MBMODULE | |
3532 | LT_KERNEL_EFI | LT_KERNEL_16, |
3533 | entry->lines); |
3534 | if (!line) { |
3535 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ |
3536 | continue; |
3537 | } |
3538 | firstElement = 2; |
3539 | } |
3540 | |
3541 | /* handle the elilo case which does: |
3542 | * append="hypervisor args -- kernel args" |
3543 | */ |
3544 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { |
3545 | /* this is a multiboot entry, make sure there's |
3546 | * -- on the args line |
3547 | */ |
3548 | for (i = firstElement; i < line->numElements; i++) { |
3549 | if (!strcmp(line->elements[i].item, "--")) |
3550 | break; |
3551 | } |
3552 | if (i == line->numElements) { |
3553 | /* assume all existing args are kernel args, |
3554 | * prepend -- to make it official |
3555 | */ |
3556 | insertElement(line, "--", firstElement, |
3557 | cfg->cfi); |
3558 | i = firstElement; |
3559 | } |
3560 | if (!multibootArgs) { |
3561 | /* kernel args start after the -- */ |
3562 | firstElement = i + 1; |
3563 | } |
3564 | } else if (cfg->cfi->mbConcatArgs) { |
3565 | /* this is a non-multiboot entry, remove hyper args */ |
3566 | for (i = firstElement; i < line->numElements; i++) { |
3567 | if (!strcmp(line->elements[i].item, "--")) |
3568 | break; |
3569 | } |
3570 | if (i < line->numElements) { |
3571 | /* remove args up to -- */ |
3572 | while (strcmp |
3573 | (line->elements[firstElement].item, |
3574 | "--")) |
3575 | removeElement(line, firstElement); |
3576 | /* remove -- */ |
3577 | removeElement(line, firstElement); |
3578 | } |
3579 | } |
3580 | |
3581 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3582 | |
3583 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3584 | |
3585 | doreplace = 1; |
3586 | for (i = firstElement; i < line->numElements; i++) { |
3587 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3588 | !strcmp(line->elements[i].item, "--")) { |
3589 | /* reached the end of hyper args, insert here */ |
3590 | doreplace = 0; |
3591 | break; |
3592 | } |
3593 | if (usedElements[i]) |
3594 | continue; |
3595 | if (!argMatch(line->elements[i].item, *arg)) { |
3596 | usedElements[i] = 1; |
3597 | break; |
3598 | } |
3599 | } |
3600 | |
3601 | if (i < line->numElements && doreplace) { |
3602 | /* direct replacement */ |
3603 | free(line->elements[i].item); |
3604 | line->elements[i].item = strdup(*arg); |
3605 | |
3606 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3607 | /* root= replacement */ |
3608 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3609 | if (rootLine) { |
3610 | free(rootLine->elements[1].item); |
3611 | rootLine->elements[1].item = |
3612 | strdup(*arg + 5); |
3613 | } else { |
3614 | rootLine = |
3615 | addLine(entry, cfg->cfi, LT_ROOT, |
3616 | cfg->secondaryIndent, |
3617 | *arg + 5); |
3618 | } |
3619 | } |
3620 | |
3621 | else { |
3622 | /* insert/append */ |
3623 | insertElement(line, *arg, i, cfg->cfi); |
3624 | usedElements = |
3625 | realloc(usedElements, |
3626 | line->numElements * |
3627 | sizeof(*usedElements)); |
3628 | memmove(&usedElements[i + 1], &usedElements[i], |
3629 | line->numElements - i - 1); |
3630 | usedElements[i] = 1; |
3631 | |
3632 | /* if we updated a root= here even though |
3633 | * there is a LT_ROOT available we need to |
3634 | * remove the LT_ROOT entry (this will happen |
3635 | * if we switch from a device to a label) */ |
3636 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3637 | rootLine = |
3638 | getLineByType(LT_ROOT, |
3639 | entry->lines); |
3640 | if (rootLine) |
3641 | removeLine(entry, rootLine); |
3642 | } |
3643 | } |
3644 | } |
3645 | |
3646 | free(usedElements); |
3647 | |
3648 | for (arg = oldArgs; *arg; arg++) { |
3649 | for (i = firstElement; i < line->numElements; i++) { |
3650 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3651 | !strcmp(line->elements[i].item, "--")) |
3652 | /* reached the end of hyper args, stop here */ |
3653 | break; |
3654 | if (!argMatch(line->elements[i].item, *arg)) { |
3655 | removeElement(line, i); |
3656 | break; |
3657 | } |
3658 | } |
3659 | /* handle removing LT_ROOT line too */ |
3660 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3661 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3662 | if (rootLine) |
3663 | removeLine(entry, rootLine); |
3664 | } |
3665 | } |
3666 | |
3667 | if (line->numElements == 1) { |
3668 | /* don't need the line at all (note it has to be a |
3669 | LT_KERNELARGS for this to happen */ |
3670 | removeLine(entry, line); |
3671 | } |
3672 | } |
3673 | |
3674 | free(newArgs); |
3675 | free(oldArgs); |
3676 | |
3677 | return 0; |
3678 | } |
3679 | |
3680 | int updateImage(struct grubConfig *cfg, const char *image, |
3681 | const char *prefix, const char *addArgs, |
3682 | const char *removeArgs, |
3683 | const char *addMBArgs, const char *removeMBArgs) |
3684 | { |
3685 | int rc = 0; |
3686 | |
3687 | if (!image) |
3688 | return rc; |
3689 | |
3690 | /* update the main args first... */ |
3691 | if (addArgs || removeArgs) |
3692 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, |
3693 | 0); |
3694 | if (rc) |
3695 | return rc; |
3696 | |
3697 | /* and now any multiboot args */ |
3698 | if (addMBArgs || removeMBArgs) |
3699 | rc = updateActualImage(cfg, image, prefix, addMBArgs, |
3700 | removeMBArgs, 1); |
3701 | return rc; |
3702 | } |
3703 | |
3704 | int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel, |
3705 | const char *image, const char *prefix, const char *initrd, |
3706 | const char *title) |
3707 | { |
3708 | struct singleEntry *entry; |
3709 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3710 | int index = 0; |
3711 | |
3712 | if (!image) |
3713 | return 0; |
3714 | |
3715 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3716 | kernelLine = getLineByType(LT_MBMODULE, entry->lines); |
3717 | if (!kernelLine) |
3718 | continue; |
3719 | |
3720 | /* if title is supplied, the entry's title must match it. */ |
3721 | if (title) { |
3722 | char *linetitle; |
3723 | |
3724 | line = |
3725 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3726 | entry->lines); |
3727 | if (!line) |
3728 | continue; |
3729 | |
3730 | linetitle = extractTitle(cfg, line); |
3731 | if (!linetitle) |
3732 | continue; |
3733 | if (strcmp(title, linetitle)) { |
3734 | free(linetitle); |
3735 | continue; |
3736 | } |
3737 | free(linetitle); |
3738 | } |
3739 | |
3740 | if (prefix) { |
3741 | int prefixLen = strlen(prefix); |
3742 | if (!strncmp(initrd, prefix, prefixLen)) |
3743 | initrd += prefixLen; |
3744 | } |
3745 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3746 | if (endLine) |
3747 | removeLine(entry, endLine); |
3748 | line = |
3749 | addLine(entry, cfg->cfi, |
3750 | preferredLineType(LT_MBMODULE, cfg->cfi), |
3751 | kernelLine->indent, initrd); |
3752 | if (!line) |
3753 | return 1; |
3754 | if (endLine) { |
3755 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3756 | if (!line) |
3757 | return 1; |
3758 | } |
3759 | |
3760 | break; |
3761 | } |
3762 | |
3763 | return 0; |
3764 | } |
3765 | |
3766 | int updateInitrd(struct grubConfig *cfg, const char *image, |
3767 | const char *prefix, const char *initrd, const char *title) |
3768 | { |
3769 | struct singleEntry *entry; |
3770 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3771 | int index = 0; |
3772 | |
3773 | if (!image) |
3774 | return 0; |
3775 | |
3776 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3777 | kernelLine = |
3778 | getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16, |
3779 | entry->lines); |
3780 | if (!kernelLine) |
3781 | continue; |
3782 | |
3783 | /* if title is supplied, the entry's title must match it. */ |
3784 | if (title) { |
3785 | char *linetitle; |
3786 | |
3787 | line = |
3788 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3789 | entry->lines); |
3790 | if (!line) |
3791 | continue; |
3792 | |
3793 | linetitle = extractTitle(cfg, line); |
3794 | if (!linetitle) |
3795 | continue; |
3796 | if (strcmp(title, linetitle)) { |
3797 | free(linetitle); |
3798 | continue; |
3799 | } |
3800 | free(linetitle); |
3801 | } |
3802 | |
3803 | line = |
3804 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
3805 | entry->lines); |
3806 | if (line) |
3807 | removeLine(entry, line); |
3808 | if (prefix) { |
3809 | int prefixLen = strlen(prefix); |
3810 | if (!strncmp(initrd, prefix, prefixLen)) |
3811 | initrd += prefixLen; |
3812 | } |
3813 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3814 | if (endLine) |
3815 | removeLine(entry, endLine); |
3816 | enum lineType_e lt; |
3817 | switch (kernelLine->type) { |
3818 | case LT_KERNEL: |
3819 | lt = LT_INITRD; |
3820 | break; |
3821 | case LT_KERNEL_EFI: |
3822 | lt = LT_INITRD_EFI; |
3823 | break; |
3824 | case LT_KERNEL_16: |
3825 | lt = LT_INITRD_16; |
3826 | break; |
3827 | default: |
3828 | lt = preferredLineType(LT_INITRD, cfg->cfi); |
3829 | } |
3830 | line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd); |
3831 | if (!line) |
3832 | return 1; |
3833 | if (endLine) { |
3834 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3835 | if (!line) |
3836 | return 1; |
3837 | } |
3838 | |
3839 | break; |
3840 | } |
3841 | |
3842 | return 0; |
3843 | } |
3844 | |
3845 | int checkDeviceBootloader(const char *device, const unsigned char *boot) |
3846 | { |
3847 | int fd; |
3848 | unsigned char bootSect[512]; |
3849 | int offset; |
3850 | |
3851 | fd = open(device, O_RDONLY); |
3852 | if (fd < 0) { |
3853 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
3854 | device, strerror(errno)); |
3855 | return 1; |
3856 | } |
3857 | |
3858 | if (read(fd, bootSect, 512) != 512) { |
3859 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
3860 | device, strerror(errno)); |
3861 | return 1; |
3862 | } |
3863 | close(fd); |
3864 | |
3865 | /* first three bytes should match, a jmp short should be in there */ |
3866 | if (memcmp(boot, bootSect, 3)) |
3867 | return 0; |
3868 | |
3869 | if (boot[1] == JMP_SHORT_OPCODE) { |
3870 | offset = boot[2] + 2; |
3871 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { |
3872 | offset = (boot[3] << 8) + boot[2] + 2; |
3873 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
3874 | offset = boot[1] + 2; |
3875 | /* |
3876 | * it looks like grub, when copying stage1 into the mbr, |
3877 | * patches stage1 right after the JMP location, replacing |
3878 | * other instructions such as JMPs for NOOPs. So, relax the |
3879 | * check a little bit by skipping those different bytes. |
3880 | */ |
3881 | if ((bootSect[offset + 1] == NOOP_OPCODE) |
3882 | && (bootSect[offset + 2] == NOOP_OPCODE)) { |
3883 | offset = offset + 3; |
3884 | } |
3885 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
3886 | offset = (boot[2] << 8) + boot[1] + 2; |
3887 | } else { |
3888 | return 0; |
3889 | } |
3890 | |
3891 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) |
3892 | return 0; |
3893 | |
3894 | return 2; |
3895 | } |
3896 | |
3897 | int checkLiloOnRaid(char *mdDev, const unsigned char *boot) |
3898 | { |
3899 | int fd; |
3900 | char buf[65536]; |
3901 | char *end; |
3902 | char *chptr; |
3903 | char *chptr2; |
3904 | int rc; |
3905 | |
3906 | /* it's on raid; we need to parse /proc/mdstat and check all of the |
3907 | *raw* devices listed in there */ |
3908 | |
3909 | if (!strncmp(mdDev, "/dev/", 5)) |
3910 | mdDev += 5; |
3911 | |
3912 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { |
3913 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), |
3914 | strerror(errno)); |
3915 | return 2; |
3916 | } |
3917 | |
3918 | rc = read(fd, buf, sizeof(buf) - 1); |
3919 | if (rc < 0 || rc == (sizeof(buf) - 1)) { |
3920 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), |
3921 | strerror(errno)); |
3922 | close(fd); |
3923 | return 2; |
3924 | } |
3925 | close(fd); |
3926 | buf[rc] = '\0'; |
3927 | |
3928 | chptr = buf; |
3929 | while (*chptr) { |
3930 | end = strchr(chptr, '\n'); |
3931 | if (!end) |
3932 | break; |
3933 | *end = '\0'; |
3934 | |
3935 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && |
3936 | chptr[strlen(mdDev)] == ' ') { |
3937 | |
3938 | /* found the device */ |
3939 | while (*chptr && *chptr != ':') |
3940 | chptr++; |
3941 | chptr++; |
3942 | while (*chptr && isspace(*chptr)) |
3943 | chptr++; |
3944 | |
3945 | /* skip the "active" bit */ |
3946 | while (*chptr && !isspace(*chptr)) |
3947 | chptr++; |
3948 | while (*chptr && isspace(*chptr)) |
3949 | chptr++; |
3950 | |
3951 | /* skip the raid level */ |
3952 | while (*chptr && !isspace(*chptr)) |
3953 | chptr++; |
3954 | while (*chptr && isspace(*chptr)) |
3955 | chptr++; |
3956 | |
3957 | /* everything else is partition stuff */ |
3958 | while (*chptr) { |
3959 | chptr2 = chptr; |
3960 | while (*chptr2 && *chptr2 != '[') |
3961 | chptr2++; |
3962 | if (!*chptr2) |
3963 | break; |
3964 | |
3965 | /* yank off the numbers at the end */ |
3966 | chptr2--; |
3967 | while (isdigit(*chptr2) && chptr2 > chptr) |
3968 | chptr2--; |
3969 | chptr2++; |
3970 | *chptr2 = '\0'; |
3971 | |
3972 | /* Better, now we need the /dev/ back. We're |
3973 | * done with everything before this point, so |
3974 | * we can just put the /dev/ part there. |
3975 | * There will always be room. */ |
3976 | memcpy(chptr - 5, "/dev/", 5); |
3977 | rc = checkDeviceBootloader(chptr - 5, boot); |
3978 | if (rc != 2) { |
3979 | return rc; |
3980 | } |
3981 | |
3982 | chptr = chptr2 + 1; |
3983 | /* skip the [11] bit */ |
3984 | while (*chptr && !isspace(*chptr)) |
3985 | chptr++; |
3986 | /* and move to the next one */ |
3987 | while (*chptr && isspace(*chptr)) |
3988 | chptr++; |
3989 | } |
3990 | |
3991 | /* we're good to go */ |
3992 | return 2; |
3993 | } |
3994 | |
3995 | chptr = end + 1; |
3996 | } |
3997 | |
3998 | fprintf(stderr, |
3999 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), |
4000 | mdDev); |
4001 | return 0; |
4002 | } |
4003 | |
4004 | int checkForLilo(struct grubConfig *config) |
4005 | { |
4006 | int fd; |
4007 | unsigned char boot[512]; |
4008 | struct singleLine *line; |
4009 | |
4010 | for (line = config->theLines; line; line = line->next) |
4011 | if (line->type == LT_BOOT) |
4012 | break; |
4013 | |
4014 | if (!line) { |
4015 | fprintf(stderr, |
4016 | _ |
4017 | ("grubby: no boot line found in lilo configuration\n")); |
4018 | return 1; |
4019 | } |
4020 | |
4021 | if (line->numElements != 2) |
4022 | return 1; |
4023 | |
4024 | fd = open("/boot/boot.b", O_RDONLY); |
4025 | if (fd < 0) { |
4026 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
4027 | "/boot/boot.b", strerror(errno)); |
4028 | return 1; |
4029 | } |
4030 | |
4031 | if (read(fd, boot, 512) != 512) { |
4032 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4033 | "/boot/boot.b", strerror(errno)); |
4034 | return 1; |
4035 | } |
4036 | close(fd); |
4037 | |
4038 | if (!strncmp("/dev/md", line->elements[1].item, 7)) |
4039 | return checkLiloOnRaid(line->elements[1].item, boot); |
4040 | |
4041 | return checkDeviceBootloader(line->elements[1].item, boot); |
4042 | } |
4043 | |
4044 | int checkForGrub2(struct grubConfig *config) |
4045 | { |
4046 | if (!access("/etc/grub.d/", R_OK)) |
4047 | return 2; |
4048 | |
4049 | return 1; |
4050 | } |
4051 | |
4052 | int checkForGrub(struct grubConfig *config) |
4053 | { |
4054 | int fd; |
4055 | unsigned char bootSect[512]; |
4056 | char *boot; |
4057 | int onSuse = isSuseSystem(); |
4058 | |
4059 | if (onSuse) { |
4060 | if (parseSuseGrubConf(NULL, &boot)) |
4061 | return 0; |
4062 | } else { |
4063 | if (parseSysconfigGrub(NULL, &boot)) |
4064 | return 0; |
4065 | } |
4066 | |
4067 | /* assume grub is not installed -- not an error condition */ |
4068 | if (!boot) |
4069 | return 0; |
4070 | |
4071 | fd = open("/boot/grub/stage1", O_RDONLY); |
4072 | if (fd < 0) |
4073 | /* this doesn't exist if grub hasn't been installed */ |
4074 | return 0; |
4075 | |
4076 | if (read(fd, bootSect, 512) != 512) { |
4077 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4078 | "/boot/grub/stage1", strerror(errno)); |
4079 | close(fd); |
4080 | return 1; |
4081 | } |
4082 | close(fd); |
4083 | |
4084 | /* The more elaborate checks do not work on SuSE. The checks done |
4085 | * seem to be reasonble (at least for now), so just return success |
4086 | */ |
4087 | if (onSuse) |
4088 | return 2; |
4089 | |
4090 | return checkDeviceBootloader(boot, bootSect); |
4091 | } |
4092 | |
4093 | int checkForExtLinux(struct grubConfig *config) |
4094 | { |
4095 | int fd; |
4096 | unsigned char bootSect[512]; |
4097 | char *boot; |
4098 | char executable[] = "/boot/extlinux/extlinux"; |
4099 | |
4100 | printf("entered: checkForExtLinux()\n"); |
4101 | |
4102 | if (parseSysconfigGrub(NULL, &boot)) |
4103 | return 0; |
4104 | |
4105 | /* assume grub is not installed -- not an error condition */ |
4106 | if (!boot) |
4107 | return 0; |
4108 | |
4109 | fd = open(executable, O_RDONLY); |
4110 | if (fd < 0) |
4111 | /* this doesn't exist if grub hasn't been installed */ |
4112 | return 0; |
4113 | |
4114 | if (read(fd, bootSect, 512) != 512) { |
4115 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4116 | executable, strerror(errno)); |
4117 | return 1; |
4118 | } |
4119 | close(fd); |
4120 | |
4121 | return checkDeviceBootloader(boot, bootSect); |
4122 | } |
4123 | |
4124 | int checkForYaboot(struct grubConfig *config) |
4125 | { |
4126 | /* |
4127 | * This is a simplistic check that we consider good enough for own puporses |
4128 | * |
4129 | * If we were to properly check if yaboot is *installed* we'd need to: |
4130 | * 1) get the system boot device (LT_BOOT) |
4131 | * 2) considering it's a raw filesystem, check if the yaboot binary matches |
4132 | * the content on the boot device |
4133 | * 3) if not, copy the binary to a temporary file and run "addnote" on it |
4134 | * 4) check again if binary and boot device contents match |
4135 | */ |
4136 | if (!access("/etc/yaboot.conf", R_OK)) |
4137 | return 2; |
4138 | |
4139 | return 1; |
4140 | } |
4141 | |
4142 | int checkForElilo(struct grubConfig *config) |
4143 | { |
4144 | if (!access("/etc/elilo.conf", R_OK)) |
4145 | return 2; |
4146 | |
4147 | return 1; |
4148 | } |
4149 | |
4150 | static char *getRootSpecifier(char *str) |
4151 | { |
4152 | char *idx, *rootspec = NULL; |
4153 | |
4154 | if (*str == '(') { |
4155 | idx = rootspec = strdup(str); |
4156 | while (*idx && (*idx != ')') && (!isspace(*idx))) |
4157 | idx++; |
4158 | *(++idx) = '\0'; |
4159 | } |
4160 | return rootspec; |
4161 | } |
4162 | |
4163 | static char *getInitrdVal(struct grubConfig *config, |
4164 | const char *prefix, struct singleLine *tmplLine, |
4165 | const char *newKernelInitrd, |
4166 | const char **extraInitrds, int extraInitrdCount) |
4167 | { |
4168 | char *initrdVal, *end; |
4169 | int i; |
4170 | size_t totalSize; |
4171 | size_t prefixLen; |
4172 | char separatorChar; |
4173 | |
4174 | prefixLen = strlen(prefix); |
4175 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ; |
4176 | |
4177 | for (i = 0; i < extraInitrdCount; i++) { |
4178 | totalSize += sizeof(separatorChar); |
4179 | totalSize += strlen(extraInitrds[i]) - prefixLen; |
4180 | } |
4181 | |
4182 | initrdVal = end = malloc(totalSize); |
4183 | |
4184 | end = stpcpy(end, newKernelInitrd + prefixLen); |
4185 | |
4186 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; |
4187 | for (i = 0; i < extraInitrdCount; i++) { |
4188 | const char *extraInitrd; |
4189 | int j; |
4190 | |
4191 | extraInitrd = extraInitrds[i] + prefixLen; |
4192 | /* Don't add entries that are already there */ |
4193 | if (tmplLine != NULL) { |
4194 | for (j = 2; j < tmplLine->numElements; j++) |
4195 | if (strcmp |
4196 | (extraInitrd, |
4197 | tmplLine->elements[j].item) == 0) |
4198 | break; |
4199 | |
4200 | if (j != tmplLine->numElements) |
4201 | continue; |
4202 | } |
4203 | |
4204 | *end++ = separatorChar; |
4205 | end = stpcpy(end, extraInitrd); |
4206 | } |
4207 | |
4208 | return initrdVal; |
4209 | } |
4210 | |
4211 | int addNewKernel(struct grubConfig *config, struct singleEntry *template, |
4212 | const char *prefix, |
4213 | const char *newKernelPath, const char *newKernelTitle, |
4214 | const char *newKernelArgs, const char *newKernelInitrd, |
4215 | const char **extraInitrds, int extraInitrdCount, |
4216 | const char *newMBKernel, const char *newMBKernelArgs, |
4217 | const char *newDevTreePath, int newIndex) |
4218 | { |
4219 | struct singleEntry *new, *entry, *prev = NULL; |
4220 | struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL; |
4221 | int needs; |
4222 | char *indexs; |
4223 | char *chptr; |
4224 | int rc; |
4225 | |
4226 | if (!newKernelPath) |
4227 | return 0; |
4228 | |
4229 | rc = asprintf(&indexs, "%d", newIndex); |
4230 | if (rc < 0) |
4231 | return 1; |
4232 | |
4233 | /* if the newKernelTitle is too long silently munge it into something |
4234 | * we can live with. truncating is first check, then we'll just mess with |
4235 | * it until it looks better */ |
4236 | if (config->cfi->maxTitleLength && |
4237 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { |
4238 | char *buf = alloca(config->cfi->maxTitleLength + 7); |
4239 | char *numBuf = alloca(config->cfi->maxTitleLength + 1); |
4240 | int i = 1; |
4241 | |
4242 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, |
4243 | newKernelTitle); |
4244 | while (findEntryByPath(config, buf, NULL, NULL)) { |
4245 | sprintf(numBuf, "%d", i++); |
4246 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); |
4247 | } |
4248 | |
4249 | newKernelTitle = buf + 6; |
4250 | } |
4251 | |
4252 | new = malloc(sizeof(*new)); |
4253 | new->skip = 0; |
4254 | new->multiboot = 0; |
4255 | new->lines = NULL; |
4256 | entry = config->entries; |
4257 | for (unsigned int i = 0; i < newIndex; i++) { |
4258 | if (!entry) |
4259 | break; |
4260 | prev = entry; |
4261 | entry = entry->next; |
4262 | } |
4263 | new->next = entry; |
4264 | |
4265 | if (prev) |
4266 | prev->next = new; |
4267 | else |
4268 | config->entries = new; |
4269 | |
4270 | /* copy/update from the template */ |
4271 | needs = NEED_KERNEL | NEED_TITLE; |
4272 | if (newKernelInitrd) |
4273 | needs |= NEED_INITRD; |
4274 | if (newMBKernel) { |
4275 | needs |= NEED_MB; |
4276 | new->multiboot = 1; |
4277 | } |
4278 | if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi)) |
4279 | needs |= NEED_DEVTREE; |
4280 | |
4281 | if (template) { |
4282 | for (masterLine = template->lines; |
4283 | masterLine && (tmplLine = lineDup(masterLine)); |
4284 | lineFree(tmplLine), masterLine = masterLine->next) { |
4285 | dbgPrintf("addNewKernel processing %d\n", |
4286 | tmplLine->type); |
4287 | |
4288 | /* skip comments */ |
4289 | chptr = tmplLine->indent; |
4290 | while (*chptr && isspace(*chptr)) |
4291 | chptr++; |
4292 | if (*chptr == '#') |
4293 | continue; |
4294 | |
4295 | if (iskernel(tmplLine->type) |
4296 | && tmplLine->numElements >= 2) { |
4297 | if (!template->multiboot && (needs & NEED_MB)) { |
4298 | /* it's not a multiboot template and |
4299 | * this is the kernel line. Try to |
4300 | * be intelligent about inserting the |
4301 | * hypervisor at the same time. |
4302 | */ |
4303 | if (config->cfi->mbHyperFirst) { |
4304 | /* insert the hypervisor first */ |
4305 | newLine = |
4306 | addLine(new, config->cfi, |
4307 | LT_HYPER, |
4308 | tmplLine->indent, |
4309 | newMBKernel + |
4310 | strlen(prefix)); |
4311 | /* set up for adding the |
4312 | * kernel line */ |
4313 | free(tmplLine->indent); |
4314 | tmplLine->indent = |
4315 | strdup(config-> |
4316 | secondaryIndent); |
4317 | needs &= ~NEED_MB; |
4318 | } |
4319 | if (needs & NEED_KERNEL) { |
4320 | /* use addLineTmpl to |
4321 | * preserve line elements, |
4322 | * otherwise we could just |
4323 | * call addLine. |
4324 | * Unfortunately this means |
4325 | * making some changes to the |
4326 | * template such as the |
4327 | * indent change above and |
4328 | * the type change below. |
4329 | */ |
4330 | struct keywordTypes *mbm_kw = |
4331 | getKeywordByType |
4332 | (LT_MBMODULE, config->cfi); |
4333 | if (mbm_kw) { |
4334 | tmplLine->type = |
4335 | LT_MBMODULE; |
4336 | free(tmplLine-> |
4337 | elements[0].item); |
4338 | tmplLine->elements[0]. |
4339 | item = |
4340 | strdup(mbm_kw->key); |
4341 | } |
4342 | newLine = |
4343 | addLineTmpl(new, tmplLine, |
4344 | newLine, |
4345 | newKernelPath + |
4346 | strlen(prefix), |
4347 | config->cfi); |
4348 | needs &= ~NEED_KERNEL; |
4349 | } |
4350 | if (needs & NEED_MB) { /* !mbHyperFirst */ |
4351 | newLine = |
4352 | addLine(new, config->cfi, |
4353 | LT_HYPER, |
4354 | config-> |
4355 | secondaryIndent, |
4356 | newMBKernel + |
4357 | strlen(prefix)); |
4358 | needs &= ~NEED_MB; |
4359 | } |
4360 | } else if (needs & NEED_KERNEL) { |
4361 | newLine = |
4362 | addLineTmpl(new, tmplLine, newLine, |
4363 | newKernelPath + |
4364 | strlen(prefix), |
4365 | config->cfi); |
4366 | needs &= ~NEED_KERNEL; |
4367 | } |
4368 | |
4369 | } else if (tmplLine->type == LT_HYPER && |
4370 | tmplLine->numElements >= 2) { |
4371 | if (needs & NEED_MB) { |
4372 | newLine = |
4373 | addLineTmpl(new, tmplLine, newLine, |
4374 | newMBKernel + |
4375 | strlen(prefix), |
4376 | config->cfi); |
4377 | needs &= ~NEED_MB; |
4378 | } |
4379 | |
4380 | } else if (tmplLine->type == LT_MBMODULE && |
4381 | tmplLine->numElements >= 2) { |
4382 | if (new->multiboot) { |
4383 | if (needs & NEED_KERNEL) { |
4384 | newLine = |
4385 | addLineTmpl(new, tmplLine, |
4386 | newLine, |
4387 | newKernelPath + |
4388 | strlen(prefix), |
4389 | config->cfi); |
4390 | needs &= ~NEED_KERNEL; |
4391 | } else if (config->cfi->mbInitRdIsModule |
4392 | && (needs & NEED_INITRD)) { |
4393 | char *initrdVal; |
4394 | initrdVal = |
4395 | getInitrdVal(config, prefix, |
4396 | tmplLine, |
4397 | newKernelInitrd, |
4398 | extraInitrds, |
4399 | extraInitrdCount); |
4400 | newLine = |
4401 | addLineTmpl(new, tmplLine, |
4402 | newLine, |
4403 | initrdVal, |
4404 | config->cfi); |
4405 | free(initrdVal); |
4406 | needs &= ~NEED_INITRD; |
4407 | } |
4408 | } else if (needs & NEED_KERNEL) { |
4409 | /* template is multi but new is not, |
4410 | * insert the kernel in the first |
4411 | * module slot |
4412 | */ |
4413 | tmplLine->type = |
4414 | preferredLineType(LT_KERNEL, |
4415 | config->cfi); |
4416 | free(tmplLine->elements[0].item); |
4417 | tmplLine->elements[0].item = |
4418 | strdup(getKeywordByType |
4419 | (tmplLine->type, |
4420 | config->cfi)->key); |
4421 | newLine = |
4422 | addLineTmpl(new, tmplLine, newLine, |
4423 | newKernelPath + |
4424 | strlen(prefix), |
4425 | config->cfi); |
4426 | needs &= ~NEED_KERNEL; |
4427 | } else if (needs & NEED_INITRD) { |
4428 | char *initrdVal; |
4429 | /* template is multi but new is not, |
4430 | * insert the initrd in the second |
4431 | * module slot |
4432 | */ |
4433 | tmplLine->type = |
4434 | preferredLineType(LT_INITRD, |
4435 | config->cfi); |
4436 | free(tmplLine->elements[0].item); |
4437 | tmplLine->elements[0].item = |
4438 | strdup(getKeywordByType |
4439 | (tmplLine->type, |
4440 | config->cfi)->key); |
4441 | initrdVal = |
4442 | getInitrdVal(config, prefix, |
4443 | tmplLine, |
4444 | newKernelInitrd, |
4445 | extraInitrds, |
4446 | extraInitrdCount); |
4447 | newLine = |
4448 | addLineTmpl(new, tmplLine, newLine, |
4449 | initrdVal, config->cfi); |
4450 | free(initrdVal); |
4451 | needs &= ~NEED_INITRD; |
4452 | } |
4453 | |
4454 | } else if (isinitrd(tmplLine->type) |
4455 | && tmplLine->numElements >= 2) { |
4456 | if (needs & NEED_INITRD && new->multiboot |
4457 | && !template->multiboot |
4458 | && config->cfi->mbInitRdIsModule) { |
4459 | /* make sure we don't insert the |
4460 | * module initrd before the module |
4461 | * kernel... if we don't do it here, |
4462 | * it will be inserted following the |
4463 | * template. |
4464 | */ |
4465 | if (!needs & NEED_KERNEL) { |
4466 | char *initrdVal; |
4467 | |
4468 | initrdVal = |
4469 | getInitrdVal(config, prefix, |
4470 | tmplLine, |
4471 | newKernelInitrd, |
4472 | extraInitrds, |
4473 | extraInitrdCount); |
4474 | newLine = |
4475 | addLine(new, config->cfi, |
4476 | LT_MBMODULE, |
4477 | config-> |
4478 | secondaryIndent, |
4479 | initrdVal); |
4480 | free(initrdVal); |
4481 | needs &= ~NEED_INITRD; |
4482 | } |
4483 | } else if (needs & NEED_INITRD) { |
4484 | char *initrdVal; |
4485 | initrdVal = |
4486 | getInitrdVal(config, prefix, |
4487 | tmplLine, |
4488 | newKernelInitrd, |
4489 | extraInitrds, |
4490 | extraInitrdCount); |
4491 | newLine = |
4492 | addLineTmpl(new, tmplLine, newLine, |
4493 | initrdVal, config->cfi); |
4494 | free(initrdVal); |
4495 | needs &= ~NEED_INITRD; |
4496 | } |
4497 | |
4498 | } else if (tmplLine->type == LT_MENUENTRY && |
4499 | (needs & NEED_TITLE)) { |
4500 | requote(tmplLine, config->cfi); |
4501 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4502 | strcpy(nkt, "'"); |
4503 | strcat(nkt, newKernelTitle); |
4504 | strcat(nkt, "'"); |
4505 | newLine = |
4506 | addLineTmpl(new, tmplLine, newLine, nkt, |
4507 | config->cfi); |
4508 | free(nkt); |
4509 | needs &= ~NEED_TITLE; |
4510 | } else if (tmplLine->type == LT_TITLE && |
4511 | (needs & NEED_TITLE)) { |
4512 | if (tmplLine->numElements >= 2) { |
4513 | newLine = |
4514 | addLineTmpl(new, tmplLine, newLine, |
4515 | newKernelTitle, |
4516 | config->cfi); |
4517 | needs &= ~NEED_TITLE; |
4518 | } else if (tmplLine->numElements == 1 && |
4519 | config->cfi->titleBracketed) { |
4520 | /* addLineTmpl doesn't handle |
4521 | * titleBracketed */ |
4522 | newLine = |
4523 | addLine(new, config->cfi, LT_TITLE, |
4524 | tmplLine->indent, |
4525 | newKernelTitle); |
4526 | needs &= ~NEED_TITLE; |
4527 | } |
4528 | } else if (tmplLine->type == LT_ECHO) { |
4529 | requote(tmplLine, config->cfi); |
4530 | static const char *prefix = "'Loading "; |
4531 | if (tmplLine->numElements > 1 && |
4532 | strstr(tmplLine->elements[1].item, prefix) |
4533 | && masterLine->next |
4534 | && iskernel(masterLine->next->type)) { |
4535 | char *newTitle = |
4536 | malloc(strlen(prefix) + |
4537 | strlen(newKernelTitle) + 2); |
4538 | |
4539 | strcpy(newTitle, prefix); |
4540 | strcat(newTitle, newKernelTitle); |
4541 | strcat(newTitle, "'"); |
4542 | newLine = |
4543 | addLine(new, config->cfi, LT_ECHO, |
4544 | tmplLine->indent, newTitle); |
4545 | free(newTitle); |
4546 | } else { |
4547 | /* pass through other lines from the |
4548 | * template */ |
4549 | newLine = |
4550 | addLineTmpl(new, tmplLine, newLine, |
4551 | NULL, config->cfi); |
4552 | } |
4553 | } else if (tmplLine->type == LT_DEVTREE && |
4554 | tmplLine->numElements == 2 |
4555 | && newDevTreePath) { |
4556 | newLine = |
4557 | addLineTmpl(new, tmplLine, newLine, |
4558 | newDevTreePath + strlen(prefix), |
4559 | config->cfi); |
4560 | needs &= ~NEED_DEVTREE; |
4561 | } else if (tmplLine->type == LT_ENTRY_END |
4562 | && needs & NEED_DEVTREE) { |
4563 | const char *ndtp = newDevTreePath; |
4564 | if (!strncmp |
4565 | (newDevTreePath, prefix, strlen(prefix))) |
4566 | ndtp += strlen(prefix); |
4567 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4568 | config->secondaryIndent, |
4569 | ndtp); |
4570 | needs &= ~NEED_DEVTREE; |
4571 | newLine = |
4572 | addLineTmpl(new, tmplLine, newLine, NULL, |
4573 | config->cfi); |
4574 | } else { |
4575 | /* pass through other lines from the template */ |
4576 | newLine = |
4577 | addLineTmpl(new, tmplLine, newLine, NULL, |
4578 | config->cfi); |
4579 | } |
4580 | } |
4581 | |
4582 | } else { |
4583 | /* don't have a template, so start the entry with the |
4584 | * appropriate starting line |
4585 | */ |
4586 | switch (config->cfi->entryStart) { |
4587 | case LT_KERNEL: |
4588 | case LT_KERNEL_EFI: |
4589 | case LT_KERNEL_16: |
4590 | if (new->multiboot && config->cfi->mbHyperFirst) { |
4591 | /* fall through to LT_HYPER */ |
4592 | } else { |
4593 | newLine = addLine(new, config->cfi, |
4594 | preferredLineType(LT_KERNEL, |
4595 | config-> |
4596 | cfi), |
4597 | config->primaryIndent, |
4598 | newKernelPath + |
4599 | strlen(prefix)); |
4600 | needs &= ~NEED_KERNEL; |
4601 | break; |
4602 | } |
4603 | |
4604 | case LT_HYPER: |
4605 | newLine = addLine(new, config->cfi, LT_HYPER, |
4606 | config->primaryIndent, |
4607 | newMBKernel + strlen(prefix)); |
4608 | needs &= ~NEED_MB; |
4609 | break; |
4610 | |
4611 | case LT_MENUENTRY:{ |
4612 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4613 | strcpy(nkt, "'"); |
4614 | strcat(nkt, newKernelTitle); |
4615 | strcat(nkt, "'"); |
4616 | newLine = |
4617 | addLine(new, config->cfi, LT_MENUENTRY, |
4618 | config->primaryIndent, nkt); |
4619 | free(nkt); |
4620 | needs &= ~NEED_TITLE; |
4621 | needs |= NEED_END; |
4622 | break; |
4623 | } |
4624 | case LT_TITLE: |
4625 | if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above) |
4626 | char *templabel; |
4627 | int x = 0, y = 0; |
4628 | |
4629 | templabel = strdup(newKernelTitle); |
4630 | while (templabel[x]) { |
4631 | if (templabel[x] == ' ') { |
4632 | y = x; |
4633 | while (templabel[y]) { |
4634 | templabel[y] = |
4635 | templabel[y + 1]; |
4636 | y++; |
4637 | } |
4638 | } |
4639 | x++; |
4640 | } |
4641 | newLine = addLine(new, config->cfi, LT_TITLE, |
4642 | config->primaryIndent, |
4643 | templabel); |
4644 | free(templabel); |
4645 | } else { |
4646 | newLine = addLine(new, config->cfi, LT_TITLE, |
4647 | config->primaryIndent, |
4648 | newKernelTitle); |
4649 | } |
4650 | needs &= ~NEED_TITLE; |
4651 | break; |
4652 | |
4653 | default: |
4654 | abort(); |
4655 | } |
4656 | } |
4657 | |
4658 | struct singleLine *endLine = NULL; |
4659 | endLine = getLineByType(LT_ENTRY_END, new->lines); |
4660 | if (endLine) { |
4661 | removeLine(new, endLine); |
4662 | needs |= NEED_END; |
4663 | } |
4664 | |
4665 | /* add the remainder of the lines, i.e. those that either |
4666 | * weren't present in the template, or in the case of no template, |
4667 | * all the lines following the entryStart. |
4668 | */ |
4669 | if (needs & NEED_TITLE) { |
4670 | newLine = addLine(new, config->cfi, LT_TITLE, |
4671 | config->secondaryIndent, newKernelTitle); |
4672 | needs &= ~NEED_TITLE; |
4673 | } |
4674 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
4675 | newLine = addLine(new, config->cfi, LT_HYPER, |
4676 | config->secondaryIndent, |
4677 | newMBKernel + strlen(prefix)); |
4678 | needs &= ~NEED_MB; |
4679 | } |
4680 | if (needs & NEED_KERNEL) { |
4681 | newLine = addLine(new, config->cfi, |
4682 | (new->multiboot |
4683 | && getKeywordByType(LT_MBMODULE, |
4684 | config->cfi)) |
4685 | ? LT_MBMODULE : preferredLineType(LT_KERNEL, |
4686 | config-> |
4687 | cfi), |
4688 | config->secondaryIndent, |
4689 | newKernelPath + strlen(prefix)); |
4690 | needs &= ~NEED_KERNEL; |
4691 | } |
4692 | if (needs & NEED_MB) { |
4693 | newLine = addLine(new, config->cfi, LT_HYPER, |
4694 | config->secondaryIndent, |
4695 | newMBKernel + strlen(prefix)); |
4696 | needs &= ~NEED_MB; |
4697 | } |
4698 | if (needs & NEED_INITRD) { |
4699 | char *initrdVal; |
4700 | initrdVal = |
4701 | getInitrdVal(config, prefix, NULL, newKernelInitrd, |
4702 | extraInitrds, extraInitrdCount); |
4703 | newLine = |
4704 | addLine(new, config->cfi, |
4705 | (new->multiboot |
4706 | && getKeywordByType(LT_MBMODULE, config->cfi)) |
4707 | ? LT_MBMODULE : preferredLineType(LT_INITRD, |
4708 | config->cfi), |
4709 | config->secondaryIndent, initrdVal); |
4710 | free(initrdVal); |
4711 | needs &= ~NEED_INITRD; |
4712 | } |
4713 | if (needs & NEED_DEVTREE) { |
4714 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4715 | config->secondaryIndent, newDevTreePath); |
4716 | needs &= ~NEED_DEVTREE; |
4717 | } |
4718 | |
4719 | /* NEEDS_END must be last on bootloaders that need it... */ |
4720 | if (needs & NEED_END) { |
4721 | newLine = addLine(new, config->cfi, LT_ENTRY_END, |
4722 | config->secondaryIndent, NULL); |
4723 | needs &= ~NEED_END; |
4724 | } |
4725 | |
4726 | if (needs) { |
4727 | printf(_("grubby: needs=%d, aborting\n"), needs); |
4728 | abort(); |
4729 | } |
4730 | |
4731 | if (updateImage(config, indexs, prefix, newKernelArgs, NULL, |
4732 | newMBKernelArgs, NULL)) |
4733 | return 1; |
4734 | |
4735 | return 0; |
4736 | } |
4737 | |
4738 | int main(int argc, const char **argv) |
4739 | { |
4740 | poptContext optCon; |
4741 | const char *grubConfig = NULL; |
4742 | char *outputFile = NULL; |
4743 | int arg = 0; |
4744 | int flags = 0; |
4745 | int badImageOkay = 0; |
4746 | int configureGrub2 = 0; |
4747 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
4748 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; |
4749 | int configureExtLinux = 0; |
4750 | int bootloaderProbe = 0; |
4751 | int extraInitrdCount = 0; |
4752 | char *updateKernelPath = NULL; |
4753 | char *newKernelPath = NULL; |
4754 | char *removeKernelPath = NULL; |
4755 | char *newKernelArgs = NULL; |
4756 | char *newKernelInitrd = NULL; |
4757 | char *newKernelTitle = NULL; |
4758 | char *newDevTreePath = NULL; |
4759 | char *newMBKernel = NULL; |
4760 | char *newMBKernelArgs = NULL; |
4761 | int newIndex = 0; |
4762 | char *removeMBKernelArgs = NULL; |
4763 | char *removeMBKernel = NULL; |
4764 | char *bootPrefix = NULL; |
4765 | char *defaultKernel = NULL; |
4766 | char *removeArgs = NULL; |
4767 | char *kernelInfo = NULL; |
4768 | char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
4769 | char *envPath = NULL; |
4770 | const char *chptr = NULL; |
4771 | struct configFileInfo *cfi = NULL; |
4772 | struct grubConfig *config; |
4773 | struct singleEntry *template = NULL; |
4774 | int copyDefault = 0, makeDefault = 0; |
4775 | int displayDefault = 0; |
4776 | int displayDefaultIndex = 0; |
4777 | int displayDefaultTitle = 0; |
4778 | int defaultIndex = -1; |
4779 | struct poptOption options[] = { |
4780 | {"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, |
4781 | _("add an entry for the specified kernel"), _("kernel-path")}, |
4782 | {"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, |
4783 | _("add an entry for the specified multiboot kernel"), NULL}, |
4784 | {"args", 0, POPT_ARG_STRING, &newKernelArgs, 0, |
4785 | _("default arguments for the new kernel or new arguments for " |
4786 | "kernel being updated"), _("args")}, |
4787 | {"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, |
4788 | _("default arguments for the new multiboot kernel or " |
4789 | "new arguments for multiboot kernel being updated"), NULL}, |
4790 | {"bad-image-okay", 0, 0, &badImageOkay, 0, |
4791 | _ |
4792 | ("don't sanity check images in boot entries (for testing only)"), |
4793 | NULL}, |
4794 | {"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, |
4795 | _ |
4796 | ("filesystem which contains /boot directory (for testing only)"), |
4797 | _("bootfs")}, |
4798 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
4799 | {"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
4800 | _("check which bootloader is installed on boot sector")}, |
4801 | #endif |
4802 | {"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, |
4803 | _("path to grub config file to update (\"-\" for stdin)"), |
4804 | _("path")}, |
4805 | {"copy-default", 0, 0, ©Default, 0, |
4806 | _("use the default boot entry as a template for the new entry " |
4807 | "being added; if the default is not a linux image, or if " |
4808 | "the kernel referenced by the default image does not exist, " |
4809 | "the first linux entry whose kernel does exist is used as the " |
4810 | "template"), NULL}, |
4811 | {"debug", 0, 0, &debug, 0, |
4812 | _("print debugging information for failures")}, |
4813 | {"default-kernel", 0, 0, &displayDefault, 0, |
4814 | _("display the path of the default kernel")}, |
4815 | {"default-index", 0, 0, &displayDefaultIndex, 0, |
4816 | _("display the index of the default kernel")}, |
4817 | {"default-title", 0, 0, &displayDefaultTitle, 0, |
4818 | _("display the title of the default kernel")}, |
4819 | {"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4820 | _("device tree file for new stanza"), _("dtb-path")}, |
4821 | {"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4822 | _("device tree directory for new stanza"), _("dtb-path")}, |
4823 | {"elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
4824 | _("configure elilo bootloader")}, |
4825 | {"efi", 0, POPT_ARG_NONE, &isEfi, 0, |
4826 | _("force grub2 stanzas to use efi")}, |
4827 | {"env", 0, POPT_ARG_STRING, &envPath, 0, |
4828 | _("path for environment data"), |
4829 | _("path")}, |
4830 | {"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
4831 | _("configure extlinux bootloader (from syslinux)")}, |
4832 | {"grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
4833 | _("configure grub bootloader")}, |
4834 | {"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
4835 | _("configure grub2 bootloader")}, |
4836 | {"info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
4837 | _("display boot information for specified kernel"), |
4838 | _("kernel-path")}, |
4839 | {"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, |
4840 | _("initrd image for the new kernel"), _("initrd-path")}, |
4841 | {"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
4842 | _ |
4843 | ("auxiliary initrd image for things other than the new kernel"), |
4844 | _("initrd-path")}, |
4845 | {"lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
4846 | _("configure lilo bootloader")}, |
4847 | {"make-default", 0, 0, &makeDefault, 0, |
4848 | _("make the newly added entry the default boot entry"), NULL}, |
4849 | {"output-file", 'o', POPT_ARG_STRING, &outputFile, 0, |
4850 | _("path to output updated config file (\"-\" for stdout)"), |
4851 | _("path")}, |
4852 | {"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, |
4853 | _("remove kernel arguments"), NULL}, |
4854 | {"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, |
4855 | _("remove multiboot kernel arguments"), NULL}, |
4856 | {"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, |
4857 | _("remove all entries for the specified kernel"), |
4858 | _("kernel-path")}, |
4859 | {"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, |
4860 | _("remove all entries for the specified multiboot kernel"), |
4861 | NULL}, |
4862 | {"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, |
4863 | _("make the first entry referencing the specified kernel " |
4864 | "the default"), _("kernel-path")}, |
4865 | {"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, |
4866 | _("make the given entry index the default entry"), |
4867 | _("entry-index")}, |
4868 | {"set-index", 0, POPT_ARG_INT, &newIndex, 0, |
4869 | _("use the given index when creating a new entry"), |
4870 | _("entry-index")}, |
4871 | {"silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
4872 | _("configure silo bootloader")}, |
4873 | {"title", 0, POPT_ARG_STRING, &newKernelTitle, 0, |
4874 | _("title to use for the new kernel entry"), _("entry-title")}, |
4875 | {"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, |
4876 | _("updated information for the specified kernel"), |
4877 | _("kernel-path")}, |
4878 | {"version", 'v', 0, NULL, 'v', |
4879 | _("print the version of this program and exit"), NULL}, |
4880 | {"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, |
4881 | _("configure yaboot bootloader")}, |
4882 | {"zipl", 0, POPT_ARG_NONE, &configureZipl, 0, |
4883 | _("configure zipl bootloader")}, |
4884 | POPT_AUTOHELP {0, 0, 0, 0, 0} |
4885 | }; |
4886 | |
4887 | useextlinuxmenu = 0; |
4888 | |
4889 | int i = 0; |
4890 | for (int j = 1; j < argc; j++) |
4891 | i += strlen(argv[j]) + 1; |
4892 | saved_command_line = malloc(i); |
4893 | if (!saved_command_line) { |
4894 | fprintf(stderr, "grubby: %m\n"); |
4895 | exit(1); |
4896 | } |
4897 | saved_command_line[0] = '\0'; |
4898 | for (int j = 1; j < argc; j++) { |
4899 | strcat(saved_command_line, argv[j]); |
4900 | strncat(saved_command_line, j == argc - 1 ? "" : " ", 1); |
4901 | } |
4902 | |
4903 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
4904 | poptReadDefaultConfig(optCon, 1); |
4905 | |
4906 | while ((arg = poptGetNextOpt(optCon)) >= 0) { |
4907 | switch (arg) { |
4908 | case 'v': |
4909 | printf("grubby version %s\n", VERSION); |
4910 | exit(0); |
4911 | break; |
4912 | case 'i': |
4913 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { |
4914 | extraInitrds[extraInitrdCount++] = |
4915 | strdup(poptGetOptArg(optCon)); |
4916 | } else { |
4917 | fprintf(stderr, |
4918 | _ |
4919 | ("grubby: extra initrd maximum is %d\n"), |
4920 | extraInitrdCount); |
4921 | return 1; |
4922 | } |
4923 | break; |
4924 | } |
4925 | } |
4926 | |
4927 | if (arg < -1) { |
4928 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), |
4929 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), |
4930 | poptStrerror(arg)); |
4931 | return 1; |
4932 | } |
4933 | |
4934 | if ((chptr = poptGetArg(optCon))) { |
4935 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); |
4936 | return 1; |
4937 | } |
4938 | |
4939 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
4940 | configureYaboot + configureSilo + configureZipl + |
4941 | configureExtLinux) > 1) { |
4942 | fprintf(stderr, |
4943 | _("grubby: cannot specify multiple bootloaders\n")); |
4944 | return 1; |
4945 | } else if (bootloaderProbe && grubConfig) { |
4946 | fprintf(stderr, |
4947 | _ |
4948 | ("grubby: cannot specify config file with --bootloader-probe\n")); |
4949 | return 1; |
4950 | } else if (configureGrub2) { |
4951 | cfi = &grub2ConfigType; |
4952 | if (envPath) |
4953 | cfi->envFile = envPath; |
4954 | } else if (configureLilo) { |
4955 | cfi = &liloConfigType; |
4956 | } else if (configureGrub) { |
4957 | cfi = &grubConfigType; |
4958 | } else if (configureELilo) { |
4959 | cfi = &eliloConfigType; |
4960 | } else if (configureYaboot) { |
4961 | cfi = &yabootConfigType; |
4962 | } else if (configureSilo) { |
4963 | cfi = &siloConfigType; |
4964 | } else if (configureZipl) { |
4965 | cfi = &ziplConfigType; |
4966 | } else if (configureExtLinux) { |
4967 | cfi = &extlinuxConfigType; |
4968 | useextlinuxmenu = 1; |
4969 | } |
4970 | |
4971 | if (!cfi) { |
4972 | if (grub2FindConfig(&grub2ConfigType)) { |
4973 | cfi = &grub2ConfigType; |
4974 | if (envPath) |
4975 | cfi->envFile = envPath; |
4976 | } else |
4977 | #ifdef __ia64__ |
4978 | cfi = &eliloConfigType; |
4979 | #elif __powerpc__ |
4980 | cfi = &yabootConfigType; |
4981 | #elif __sparc__ |
4982 | cfi = &siloConfigType; |
4983 | #elif __s390__ |
4984 | cfi = &ziplConfigType; |
4985 | #elif __s390x__ |
4986 | cfi = &ziplConfigtype; |
4987 | #else |
4988 | cfi = &grubConfigType; |
4989 | #endif |
4990 | } |
4991 | |
4992 | if (!grubConfig) { |
4993 | if (cfi->findConfig) |
4994 | grubConfig = cfi->findConfig(cfi); |
4995 | if (!grubConfig) |
4996 | grubConfig = cfi->defaultConfig; |
4997 | } |
4998 | |
4999 | if (bootloaderProbe && (displayDefault || kernelInfo || |
5000 | newKernelPath || removeKernelPath || makeDefault |
5001 | || defaultKernel || displayDefaultIndex |
5002 | || displayDefaultTitle |
5003 | || (defaultIndex >= 0))) { |
5004 | fprintf(stderr, |
5005 | _("grubby: --bootloader-probe may not be used with " |
5006 | "specified option")); |
5007 | return 1; |
5008 | } |
5009 | |
5010 | if ((displayDefault || kernelInfo) && (newKernelPath || |
5011 | removeKernelPath)) { |
5012 | fprintf(stderr, _("grubby: --default-kernel and --info may not " |
5013 | "be used when adding or removing kernels\n")); |
5014 | return 1; |
5015 | } |
5016 | |
5017 | if (newKernelPath && !newKernelTitle) { |
5018 | fprintf(stderr, _("grubby: kernel title must be specified\n")); |
5019 | return 1; |
5020 | } else if (!newKernelPath && (copyDefault || |
5021 | (newKernelInitrd && !updateKernelPath) || |
5022 | makeDefault || extraInitrdCount > 0)) { |
5023 | fprintf(stderr, _("grubby: kernel path expected\n")); |
5024 | return 1; |
5025 | } |
5026 | |
5027 | if (newKernelPath && updateKernelPath) { |
5028 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" |
5029 | "not be used together")); |
5030 | return 1; |
5031 | } |
5032 | |
5033 | if (makeDefault && defaultKernel) { |
5034 | fprintf(stderr, _("grubby: --make-default and --default-kernel " |
5035 | "may not be used together\n")); |
5036 | return 1; |
5037 | } else if (defaultKernel && removeKernelPath && |
5038 | !strcmp(defaultKernel, removeKernelPath)) { |
5039 | fprintf(stderr, |
5040 | _("grubby: cannot make removed kernel the default\n")); |
5041 | return 1; |
5042 | } else if (defaultKernel && newKernelPath && |
5043 | !strcmp(defaultKernel, newKernelPath)) { |
5044 | makeDefault = 1; |
5045 | defaultKernel = NULL; |
5046 | } else if (defaultKernel && (defaultIndex >= 0)) { |
5047 | fprintf(stderr, |
5048 | _("grubby: --set-default and --set-default-index " |
5049 | "may not be used together\n")); |
5050 | return 1; |
5051 | } |
5052 | |
5053 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
5054 | fprintf(stderr, |
5055 | _("grubby: output file must be specified if stdin " |
5056 | "is used\n")); |
5057 | return 1; |
5058 | } |
5059 | |
5060 | if (!removeKernelPath && !newKernelPath && !displayDefault |
5061 | && !defaultKernel && !kernelInfo && !bootloaderProbe |
5062 | && !updateKernelPath && !removeMBKernel && !displayDefaultIndex |
5063 | && !displayDefaultTitle && (defaultIndex == -1)) { |
5064 | fprintf(stderr, _("grubby: no action specified\n")); |
5065 | return 1; |
5066 | } |
5067 | |
5068 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; |
5069 | |
5070 | if (cfi->needsBootPrefix) { |
5071 | if (!bootPrefix) { |
5072 | bootPrefix = findBootPrefix(); |
5073 | if (!bootPrefix) |
5074 | return 1; |
5075 | } else { |
5076 | /* this shouldn't end with a / */ |
5077 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') |
5078 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; |
5079 | } |
5080 | } else { |
5081 | bootPrefix = ""; |
5082 | } |
5083 | |
5084 | if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) { |
5085 | fprintf(stderr, |
5086 | _("grubby: %s doesn't allow multiple initrds\n"), |
5087 | cfi->defaultConfig); |
5088 | return 1; |
5089 | } |
5090 | |
5091 | if (bootloaderProbe) { |
5092 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; |
5093 | struct grubConfig *lconfig, *gconfig, *yconfig, *econfig; |
5094 | |
5095 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
5096 | if (grub2config) { |
5097 | gconfig = readConfig(grub2config, &grub2ConfigType); |
5098 | if (!gconfig) |
5099 | gr2c = 1; |
5100 | else |
5101 | gr2c = checkForGrub2(gconfig); |
5102 | } |
5103 | |
5104 | const char *grubconfig = grubFindConfig(&grubConfigType); |
5105 | if (!access(grubconfig, F_OK)) { |
5106 | gconfig = readConfig(grubconfig, &grubConfigType); |
5107 | if (!gconfig) |
5108 | grc = 1; |
5109 | else |
5110 | grc = checkForGrub(gconfig); |
5111 | } |
5112 | |
5113 | if (!access(liloConfigType.defaultConfig, F_OK)) { |
5114 | lconfig = |
5115 | readConfig(liloConfigType.defaultConfig, |
5116 | &liloConfigType); |
5117 | if (!lconfig) |
5118 | lrc = 1; |
5119 | else |
5120 | lrc = checkForLilo(lconfig); |
5121 | } |
5122 | |
5123 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
5124 | econfig = readConfig(eliloConfigType.defaultConfig, |
5125 | &eliloConfigType); |
5126 | if (!econfig) |
5127 | erc = 1; |
5128 | else |
5129 | erc = checkForElilo(econfig); |
5130 | } |
5131 | |
5132 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
5133 | lconfig = |
5134 | readConfig(extlinuxConfigType.defaultConfig, |
5135 | &extlinuxConfigType); |
5136 | if (!lconfig) |
5137 | extrc = 1; |
5138 | else |
5139 | extrc = checkForExtLinux(lconfig); |
5140 | } |
5141 | |
5142 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
5143 | yconfig = readConfig(yabootConfigType.defaultConfig, |
5144 | &yabootConfigType); |
5145 | if (!yconfig) |
5146 | yrc = 1; |
5147 | else |
5148 | yrc = checkForYaboot(yconfig); |
5149 | } |
5150 | |
5151 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 |
5152 | || erc == 1) |
5153 | return 1; |
5154 | |
5155 | if (lrc == 2) |
5156 | printf("lilo\n"); |
5157 | if (gr2c == 2) |
5158 | printf("grub2\n"); |
5159 | if (grc == 2) |
5160 | printf("grub\n"); |
5161 | if (extrc == 2) |
5162 | printf("extlinux\n"); |
5163 | if (yrc == 2) |
5164 | printf("yaboot\n"); |
5165 | if (erc == 2) |
5166 | printf("elilo\n"); |
5167 | |
5168 | return 0; |
5169 | } |
5170 | |
5171 | if (grubConfig == NULL) { |
5172 | printf("Could not find bootloader configuration file.\n"); |
5173 | exit(1); |
5174 | } |
5175 | |
5176 | config = readConfig(grubConfig, cfi); |
5177 | if (!config) |
5178 | return 1; |
5179 | |
5180 | if (displayDefault) { |
5181 | struct singleLine *line; |
5182 | struct singleEntry *entry; |
5183 | char *rootspec; |
5184 | |
5185 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5186 | return 0; |
5187 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5188 | cfi->defaultIsSaved) |
5189 | config->defaultImage = FIRST_ENTRY_INDEX; |
5190 | entry = findEntryByIndex(config, config->defaultImage); |
5191 | if (!entry) |
5192 | return 0; |
5193 | if (!suitableImage(entry, bootPrefix, 0, flags)) |
5194 | return 0; |
5195 | |
5196 | line = |
5197 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
5198 | LT_KERNEL_16, entry->lines); |
5199 | if (!line) |
5200 | return 0; |
5201 | |
5202 | rootspec = getRootSpecifier(line->elements[1].item); |
5203 | printf("%s%s\n", bootPrefix, line->elements[1].item + |
5204 | ((rootspec != NULL) ? strlen(rootspec) : 0)); |
5205 | |
5206 | return 0; |
5207 | |
5208 | } else if (displayDefaultTitle) { |
5209 | struct singleLine *line; |
5210 | struct singleEntry *entry; |
5211 | |
5212 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5213 | return 0; |
5214 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5215 | cfi->defaultIsSaved) |
5216 | config->defaultImage = FIRST_ENTRY_INDEX; |
5217 | entry = findEntryByIndex(config, config->defaultImage); |
5218 | if (!entry) |
5219 | return 0; |
5220 | |
5221 | if (!configureGrub2) { |
5222 | char *title; |
5223 | line = getLineByType(LT_TITLE, entry->lines); |
5224 | if (!line) |
5225 | return 0; |
5226 | title = extractTitle(config, line); |
5227 | if (!title) |
5228 | return 0; |
5229 | printf("%s\n", title); |
5230 | free(title); |
5231 | } else { |
5232 | char *title; |
5233 | |
5234 | dbgPrintf |
5235 | ("This is GRUB2, default title is embeded in menuentry\n"); |
5236 | line = getLineByType(LT_MENUENTRY, entry->lines); |
5237 | if (!line) |
5238 | return 0; |
5239 | title = grub2ExtractTitle(line); |
5240 | if (title) |
5241 | printf("%s\n", title); |
5242 | } |
5243 | return 0; |
5244 | |
5245 | } else if (displayDefaultIndex) { |
5246 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5247 | return 0; |
5248 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5249 | cfi->defaultIsSaved) |
5250 | config->defaultImage = FIRST_ENTRY_INDEX; |
5251 | printf("%i\n", config->defaultImage); |
5252 | return 0; |
5253 | |
5254 | } else if (kernelInfo) |
5255 | return displayInfo(config, kernelInfo, bootPrefix); |
5256 | |
5257 | if (copyDefault) { |
5258 | template = findTemplate(config, bootPrefix, NULL, 0, flags); |
5259 | if (!template) |
5260 | return 1; |
5261 | } |
5262 | |
5263 | markRemovedImage(config, removeKernelPath, bootPrefix); |
5264 | markRemovedImage(config, removeMBKernel, bootPrefix); |
5265 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, |
5266 | makeDefault, bootPrefix, flags, defaultIndex); |
5267 | setFallbackImage(config, newKernelPath != NULL); |
5268 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, |
5269 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) |
5270 | return 1; |
5271 | if (updateKernelPath && newKernelInitrd) { |
5272 | if (newMBKernel) { |
5273 | if (addMBInitrd(config, newMBKernel, updateKernelPath, |
5274 | bootPrefix, newKernelInitrd, |
5275 | newKernelTitle)) |
5276 | return 1; |
5277 | } else { |
5278 | if (updateInitrd(config, updateKernelPath, bootPrefix, |
5279 | newKernelInitrd, newKernelTitle)) |
5280 | return 1; |
5281 | } |
5282 | } |
5283 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
5284 | newKernelTitle, newKernelArgs, newKernelInitrd, |
5285 | (const char **)extraInitrds, extraInitrdCount, |
5286 | newMBKernel, newMBKernelArgs, newDevTreePath, |
5287 | newIndex)) |
5288 | return 1; |
5289 | |
5290 | if (numEntries(config) == 0) { |
5291 | fprintf(stderr, |
5292 | _("grubby: doing this would leave no kernel entries. " |
5293 | "Not writing out new config.\n")); |
5294 | return 1; |
5295 | } |
5296 | |
5297 | if (!outputFile) |
5298 | outputFile = (char *)grubConfig; |
5299 | |
5300 | return writeConfig(config, outputFile, bootPrefix); |
5301 | } |