Contents of /trunk/grubby/grubby.c
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Revision 3136 -
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Tue Jul 7 11:09:37 2020 UTC (4 years, 2 months ago) by niro
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File size: 135671 byte(s)
Tue Jul 7 11:09:37 2020 UTC (4 years, 2 months ago) by niro
File MIME type: text/plain
File size: 135671 byte(s)
Fix incorrect test case and --remove-args with a value.
1 | /* |
2 | * grubby.c |
3 | * |
4 | * Copyright (C) 2001-2008 Red Hat, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | */ |
20 | |
21 | #ifndef _GNU_SOURCE |
22 | #define _GNU_SOURCE |
23 | #endif |
24 | #include <ctype.h> |
25 | #include <errno.h> |
26 | #include <fcntl.h> |
27 | #include <mntent.h> |
28 | #include <popt.h> |
29 | #include <stdarg.h> |
30 | #include <stdlib.h> |
31 | #include <string.h> |
32 | #include <sys/stat.h> |
33 | #include <unistd.h> |
34 | #include <libgen.h> |
35 | #include <execinfo.h> |
36 | #include <signal.h> |
37 | #include <blkid/blkid.h> |
38 | |
39 | #include "log.h" |
40 | |
41 | #ifndef DEBUG |
42 | #define DEBUG 0 |
43 | #endif |
44 | |
45 | #if DEBUG |
46 | #define dbgPrintf(format, args...) fprintf(stderr, format , ## args) |
47 | #else |
48 | #define dbgPrintf(format, args...) |
49 | #endif |
50 | |
51 | int debug = 0; /* Currently just for template debugging */ |
52 | |
53 | #define _(A) (A) |
54 | |
55 | #define MAX_EXTRA_INITRDS 16 /* code segment checked by --bootloader-probe */ |
56 | #define CODE_SEG_SIZE 128 /* code segment checked by --bootloader-probe */ |
57 | |
58 | #define NOOP_OPCODE 0x90 |
59 | #define JMP_SHORT_OPCODE 0xeb |
60 | |
61 | int isEfi = 0; |
62 | |
63 | #if defined(__aarch64__) |
64 | #define isEfiOnly 1 |
65 | #else |
66 | #define isEfiOnly 0 |
67 | #endif |
68 | |
69 | char *saved_command_line = NULL; |
70 | |
71 | /* comments get lumped in with indention */ |
72 | struct lineElement { |
73 | char *item; |
74 | char *indent; |
75 | }; |
76 | |
77 | enum lineType_e { |
78 | LT_UNIDENTIFIED = 0, |
79 | LT_WHITESPACE = 1 << 0, |
80 | LT_TITLE = 1 << 1, |
81 | LT_KERNEL = 1 << 2, |
82 | LT_INITRD = 1 << 3, |
83 | LT_HYPER = 1 << 4, |
84 | LT_DEFAULT = 1 << 5, |
85 | LT_MBMODULE = 1 << 6, |
86 | LT_ROOT = 1 << 7, |
87 | LT_FALLBACK = 1 << 8, |
88 | LT_KERNELARGS = 1 << 9, |
89 | LT_BOOT = 1 << 10, |
90 | LT_BOOTROOT = 1 << 11, |
91 | LT_LBA = 1 << 12, |
92 | LT_OTHER = 1 << 13, |
93 | LT_GENERIC = 1 << 14, |
94 | LT_ECHO = 1 << 16, |
95 | LT_MENUENTRY = 1 << 17, |
96 | LT_ENTRY_END = 1 << 18, |
97 | LT_SET_VARIABLE = 1 << 19, |
98 | LT_KERNEL_EFI = 1 << 20, |
99 | LT_INITRD_EFI = 1 << 21, |
100 | LT_KERNEL_16 = 1 << 22, |
101 | LT_INITRD_16 = 1 << 23, |
102 | LT_DEVTREE = 1 << 24, |
103 | LT_UNKNOWN = 1 << 25, |
104 | }; |
105 | |
106 | struct singleLine { |
107 | char *indent; |
108 | int numElements; |
109 | struct lineElement *elements; |
110 | struct singleLine *next; |
111 | enum lineType_e type; |
112 | }; |
113 | |
114 | struct singleEntry { |
115 | struct singleLine *lines; |
116 | int skip; |
117 | int multiboot; |
118 | struct singleEntry *next; |
119 | }; |
120 | |
121 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) |
122 | |
123 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ |
124 | |
125 | /* These defines are (only) used in addNewKernel() */ |
126 | #define NEED_KERNEL (1 << 0) |
127 | #define NEED_INITRD (1 << 1) |
128 | #define NEED_TITLE (1 << 2) |
129 | #define NEED_ARGS (1 << 3) |
130 | #define NEED_MB (1 << 4) |
131 | #define NEED_END (1 << 5) |
132 | #define NEED_DEVTREE (1 << 6) |
133 | |
134 | #define MAIN_DEFAULT (1 << 0) |
135 | #define FIRST_ENTRY_INDEX 0 /* boot entry index value begin and increment |
136 | from this initial value */ |
137 | #define NO_DEFAULT_ENTRY -1 /* indicates that no specific default boot |
138 | entry was set or currently exists */ |
139 | #define DEFAULT_SAVED -2 |
140 | #define DEFAULT_SAVED_GRUB2 -3 |
141 | |
142 | struct keywordTypes { |
143 | char *key; |
144 | enum lineType_e type; |
145 | char nextChar; |
146 | char separatorChar; |
147 | }; |
148 | |
149 | struct configFileInfo; |
150 | |
151 | typedef const char *(*findConfigFunc) (struct configFileInfo *); |
152 | typedef const int (*writeLineFunc) (struct configFileInfo *, |
153 | struct singleLine * line); |
154 | typedef char *(*getEnvFunc) (struct configFileInfo *, char *name); |
155 | typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value); |
156 | |
157 | struct configFileInfo { |
158 | char *defaultConfig; |
159 | findConfigFunc findConfig; |
160 | writeLineFunc writeLine; |
161 | getEnvFunc getEnv; |
162 | setEnvFunc setEnv; |
163 | struct keywordTypes *keywords; |
164 | int caseInsensitive; |
165 | int defaultIsIndex; |
166 | int defaultIsVariable; |
167 | int defaultSupportSaved; |
168 | int defaultIsSaved; |
169 | int defaultIsUnquoted; |
170 | enum lineType_e entryStart; |
171 | enum lineType_e entryEnd; |
172 | int needsBootPrefix; |
173 | int argsInQuotes; |
174 | int maxTitleLength; |
175 | int titleBracketed; |
176 | int titlePosition; |
177 | int mbHyperFirst; |
178 | int mbInitRdIsModule; |
179 | int mbConcatArgs; |
180 | int mbAllowExtraInitRds; |
181 | char *envFile; |
182 | }; |
183 | |
184 | struct keywordTypes grubKeywords[] = { |
185 | {"title", LT_TITLE, ' '}, |
186 | {"root", LT_BOOTROOT, ' '}, |
187 | {"default", LT_DEFAULT, ' '}, |
188 | {"fallback", LT_FALLBACK, ' '}, |
189 | {"kernel", LT_KERNEL, ' '}, |
190 | {"initrd", LT_INITRD, ' ', ' '}, |
191 | {"module", LT_MBMODULE, ' '}, |
192 | {"kernel", LT_HYPER, ' '}, |
193 | {NULL, 0, 0}, |
194 | }; |
195 | |
196 | const char *grubFindConfig(struct configFileInfo *cfi) |
197 | { |
198 | static const char *configFiles[] = { |
199 | "/boot/grub/grub.conf", |
200 | "/boot/grub/menu.lst", |
201 | "/etc/grub.conf", |
202 | NULL |
203 | }; |
204 | static int i = -1; |
205 | |
206 | if (i == -1) { |
207 | for (i = 0; configFiles[i] != NULL; i++) { |
208 | dbgPrintf("Checking \"%s\": ", configFiles[i]); |
209 | if (!access(configFiles[i], R_OK)) { |
210 | dbgPrintf("found\n"); |
211 | return configFiles[i]; |
212 | } |
213 | dbgPrintf("not found\n"); |
214 | } |
215 | } |
216 | return configFiles[i]; |
217 | } |
218 | |
219 | struct configFileInfo grubConfigType = { |
220 | .findConfig = grubFindConfig, |
221 | .keywords = grubKeywords, |
222 | .defaultIsIndex = 1, |
223 | .defaultSupportSaved = 1, |
224 | .entryStart = LT_TITLE, |
225 | .needsBootPrefix = 1, |
226 | .mbHyperFirst = 1, |
227 | .mbInitRdIsModule = 1, |
228 | .mbAllowExtraInitRds = 1, |
229 | .titlePosition = 1, |
230 | }; |
231 | |
232 | struct keywordTypes grub2Keywords[] = { |
233 | {"menuentry", LT_MENUENTRY, ' '}, |
234 | {"}", LT_ENTRY_END, ' '}, |
235 | {"echo", LT_ECHO, ' '}, |
236 | {"set", LT_SET_VARIABLE, ' ', '='}, |
237 | {"root", LT_BOOTROOT, ' '}, |
238 | {"default", LT_DEFAULT, ' '}, |
239 | {"fallback", LT_FALLBACK, ' '}, |
240 | {"linux", LT_KERNEL, ' '}, |
241 | {"linuxefi", LT_KERNEL_EFI, ' '}, |
242 | {"linux16", LT_KERNEL_16, ' '}, |
243 | {"initrd", LT_INITRD, ' ', ' '}, |
244 | {"initrdefi", LT_INITRD_EFI, ' ', ' '}, |
245 | {"initrd16", LT_INITRD_16, ' ', ' '}, |
246 | {"module", LT_MBMODULE, ' '}, |
247 | {"kernel", LT_HYPER, ' '}, |
248 | {"devicetree", LT_DEVTREE, ' '}, |
249 | {NULL, 0, 0}, |
250 | }; |
251 | |
252 | const char *grub2FindConfig(struct configFileInfo *cfi) |
253 | { |
254 | static const char *configFiles[] = { |
255 | "/boot/grub/grub-efi.cfg", |
256 | "/boot/grub/grub.cfg", |
257 | "/etc/grub2-efi.cfg", |
258 | "/etc/grub2.cfg", |
259 | "/boot/grub2/grub.cfg", |
260 | "/boot/grub2-efi/grub.cfg", |
261 | NULL |
262 | }; |
263 | static int i = -1; |
264 | static const char *grub_cfg = "/boot/grub/grub.cfg"; |
265 | int rc = -1; |
266 | |
267 | if (i == -1) { |
268 | for (i = 0; configFiles[i] != NULL; i++) { |
269 | dbgPrintf("Checking \"%s\": ", configFiles[i]); |
270 | if ((rc = access(configFiles[i], R_OK))) { |
271 | if (errno == EACCES) { |
272 | printf |
273 | ("Unable to access bootloader configuration file " |
274 | "\"%s\": %m\n", configFiles[i]); |
275 | exit(1); |
276 | } |
277 | continue; |
278 | } else { |
279 | dbgPrintf("found\n"); |
280 | return configFiles[i]; |
281 | } |
282 | } |
283 | } |
284 | |
285 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory |
286 | * that isn't in grub1, and if it exists, return the config file path |
287 | * that they use. */ |
288 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { |
289 | dbgPrintf("found\n"); |
290 | return grub_cfg; |
291 | } |
292 | |
293 | dbgPrintf("not found\n"); |
294 | return configFiles[i]; |
295 | } |
296 | |
297 | /* kind of hacky. It'll give the first 1024 bytes, ish. */ |
298 | static char *grub2GetEnv(struct configFileInfo *info, char *name) |
299 | { |
300 | static char buf[1025]; |
301 | char *s = NULL; |
302 | char *ret = NULL; |
303 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
304 | int rc = |
305 | asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name); |
306 | |
307 | if (rc < 0) |
308 | return NULL; |
309 | |
310 | FILE *f = popen(s, "r"); |
311 | if (!f) |
312 | goto out; |
313 | |
314 | memset(buf, '\0', sizeof(buf)); |
315 | ret = fgets(buf, 1024, f); |
316 | pclose(f); |
317 | |
318 | if (ret) { |
319 | ret += strlen(name) + 1; |
320 | ret[strlen(ret) - 1] = '\0'; |
321 | } |
322 | dbgPrintf("grub2GetEnv(%s): %s\n", name, ret); |
323 | out: |
324 | free(s); |
325 | return ret; |
326 | } |
327 | |
328 | static int sPopCount(const char *s, const char *c) |
329 | { |
330 | int ret = 0; |
331 | if (!s) |
332 | return -1; |
333 | for (int i = 0; s[i] != '\0'; i++) |
334 | for (int j = 0; c[j] != '\0'; j++) |
335 | if (s[i] == c[j]) |
336 | ret++; |
337 | return ret; |
338 | } |
339 | |
340 | static char *shellEscape(const char *s) |
341 | { |
342 | int l = strlen(s) + sPopCount(s, "'") * 2; |
343 | |
344 | char *ret = calloc(l + 1, sizeof(*ret)); |
345 | if (!ret) |
346 | return NULL; |
347 | for (int i = 0, j = 0; s[i] != '\0'; i++, j++) { |
348 | if (s[i] == '\'') |
349 | ret[j++] = '\\'; |
350 | ret[j] = s[i]; |
351 | } |
352 | return ret; |
353 | } |
354 | |
355 | static void unquote(char *s) |
356 | { |
357 | int l = strlen(s); |
358 | |
359 | if ((s[l - 1] == '\'' && s[0] == '\'') |
360 | || (s[l - 1] == '"' && s[0] == '"')) { |
361 | memmove(s, s + 1, l - 2); |
362 | s[l - 2] = '\0'; |
363 | } |
364 | } |
365 | |
366 | static int grub2SetEnv(struct configFileInfo *info, char *name, char *value) |
367 | { |
368 | char *s = NULL; |
369 | int rc = 0; |
370 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
371 | |
372 | unquote(value); |
373 | value = shellEscape(value); |
374 | if (!value) |
375 | return -1; |
376 | |
377 | rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value); |
378 | free(value); |
379 | if (rc < 0) |
380 | return -1; |
381 | |
382 | dbgPrintf("grub2SetEnv(%s): %s\n", name, s); |
383 | rc = system(s); |
384 | free(s); |
385 | return rc; |
386 | } |
387 | |
388 | /* this is a gigantic hack to avoid clobbering grub2 variables... */ |
389 | static int is_special_grub2_variable(const char *name) |
390 | { |
391 | if (!strcmp(name, "\"${next_entry}\"")) |
392 | return 1; |
393 | if (!strcmp(name, "\"${prev_saved_entry}\"")) |
394 | return 1; |
395 | return 0; |
396 | } |
397 | |
398 | int sizeOfSingleLine(struct singleLine *line) |
399 | { |
400 | int count = 0; |
401 | |
402 | for (int i = 0; i < line->numElements; i++) { |
403 | int indentSize = 0; |
404 | |
405 | count = count + strlen(line->elements[i].item); |
406 | |
407 | indentSize = strlen(line->elements[i].indent); |
408 | if (indentSize > 0) |
409 | count = count + indentSize; |
410 | else |
411 | /* be extra safe and add room for whitespaces */ |
412 | count = count + 1; |
413 | } |
414 | |
415 | /* room for trailing terminator */ |
416 | count = count + 1; |
417 | |
418 | return count; |
419 | } |
420 | |
421 | static int isquote(char q) |
422 | { |
423 | if (q == '\'' || q == '\"') |
424 | return 1; |
425 | return 0; |
426 | } |
427 | |
428 | static int iskernel(enum lineType_e type) |
429 | { |
430 | return (type == LT_KERNEL || type == LT_KERNEL_EFI |
431 | || type == LT_KERNEL_16); |
432 | } |
433 | |
434 | static int isinitrd(enum lineType_e type) |
435 | { |
436 | return (type == LT_INITRD || type == LT_INITRD_EFI |
437 | || type == LT_INITRD_16); |
438 | } |
439 | |
440 | char *grub2ExtractTitle(struct singleLine *line) |
441 | { |
442 | char *current; |
443 | char *current_indent; |
444 | int current_len; |
445 | int current_indent_len; |
446 | int i; |
447 | |
448 | /* bail out if line does not start with menuentry */ |
449 | if (strcmp(line->elements[0].item, "menuentry")) |
450 | return NULL; |
451 | |
452 | i = 1; |
453 | current = line->elements[i].item; |
454 | current_len = strlen(current); |
455 | |
456 | /* if second word is quoted, strip the quotes and return single word */ |
457 | if (isquote(*current) && isquote(current[current_len - 1])) { |
458 | char *tmp; |
459 | |
460 | tmp = strdup(current + 1); |
461 | if (!tmp) |
462 | return NULL; |
463 | tmp[strlen(tmp) - 1] = '\0'; |
464 | return tmp; |
465 | } |
466 | |
467 | /* if no quotes, return second word verbatim */ |
468 | if (!isquote(*current)) |
469 | return current; |
470 | |
471 | /* second element start with a quote, so we have to find the element |
472 | * whose last character is also quote (assuming it's the closing one) */ |
473 | int resultMaxSize; |
474 | char *result; |
475 | /* need to ensure that ' does not match " as we search */ |
476 | char quote_char = *current; |
477 | |
478 | resultMaxSize = sizeOfSingleLine(line); |
479 | result = malloc(resultMaxSize); |
480 | snprintf(result, resultMaxSize, "%s", ++current); |
481 | |
482 | i++; |
483 | for (; i < line->numElements; ++i) { |
484 | current = line->elements[i].item; |
485 | current_len = strlen(current); |
486 | current_indent = line->elements[i].indent; |
487 | current_indent_len = strlen(current_indent); |
488 | |
489 | strncat(result, current_indent, current_indent_len); |
490 | if (current[current_len - 1] != quote_char) { |
491 | strncat(result, current, current_len); |
492 | } else { |
493 | strncat(result, current, current_len - 1); |
494 | break; |
495 | } |
496 | } |
497 | return result; |
498 | } |
499 | |
500 | struct configFileInfo grub2ConfigType = { |
501 | .findConfig = grub2FindConfig, |
502 | .getEnv = grub2GetEnv, |
503 | .setEnv = grub2SetEnv, |
504 | .keywords = grub2Keywords, |
505 | .defaultIsIndex = 1, |
506 | .defaultSupportSaved = 1, |
507 | .defaultIsVariable = 1, |
508 | .entryStart = LT_MENUENTRY, |
509 | .entryEnd = LT_ENTRY_END, |
510 | .titlePosition = 1, |
511 | .needsBootPrefix = 1, |
512 | .mbHyperFirst = 1, |
513 | .mbInitRdIsModule = 1, |
514 | .mbAllowExtraInitRds = 1, |
515 | }; |
516 | |
517 | struct keywordTypes yabootKeywords[] = { |
518 | {"label", LT_TITLE, '='}, |
519 | {"root", LT_ROOT, '='}, |
520 | {"default", LT_DEFAULT, '='}, |
521 | {"image", LT_KERNEL, '='}, |
522 | {"bsd", LT_GENERIC, '='}, |
523 | {"macos", LT_GENERIC, '='}, |
524 | {"macosx", LT_GENERIC, '='}, |
525 | {"magicboot", LT_GENERIC, '='}, |
526 | {"darwin", LT_GENERIC, '='}, |
527 | {"timeout", LT_GENERIC, '='}, |
528 | {"install", LT_GENERIC, '='}, |
529 | {"fstype", LT_GENERIC, '='}, |
530 | {"hfstype", LT_GENERIC, '='}, |
531 | {"delay", LT_GENERIC, '='}, |
532 | {"defaultos", LT_GENERIC, '='}, |
533 | {"init-message", LT_GENERIC, '='}, |
534 | {"enablecdboot", LT_GENERIC, ' '}, |
535 | {"enableofboot", LT_GENERIC, ' '}, |
536 | {"enablenetboot", LT_GENERIC, ' '}, |
537 | {"nonvram", LT_GENERIC, ' '}, |
538 | {"hide", LT_GENERIC, ' '}, |
539 | {"protect", LT_GENERIC, ' '}, |
540 | {"nobless", LT_GENERIC, ' '}, |
541 | {"nonvram", LT_GENERIC, ' '}, |
542 | {"brokenosx", LT_GENERIC, ' '}, |
543 | {"usemount", LT_GENERIC, ' '}, |
544 | {"mntpoint", LT_GENERIC, '='}, |
545 | {"partition", LT_GENERIC, '='}, |
546 | {"device", LT_GENERIC, '='}, |
547 | {"fstype", LT_GENERIC, '='}, |
548 | {"initrd", LT_INITRD, '=', ';'}, |
549 | {"append", LT_KERNELARGS, '='}, |
550 | {"boot", LT_BOOT, '='}, |
551 | {"lba", LT_LBA, ' '}, |
552 | {NULL, 0, 0}, |
553 | }; |
554 | |
555 | struct keywordTypes liloKeywords[] = { |
556 | {"label", LT_TITLE, '='}, |
557 | {"root", LT_ROOT, '='}, |
558 | {"default", LT_DEFAULT, '='}, |
559 | {"image", LT_KERNEL, '='}, |
560 | {"other", LT_OTHER, '='}, |
561 | {"initrd", LT_INITRD, '='}, |
562 | {"append", LT_KERNELARGS, '='}, |
563 | {"boot", LT_BOOT, '='}, |
564 | {"lba", LT_LBA, ' '}, |
565 | {NULL, 0, 0}, |
566 | }; |
567 | |
568 | struct keywordTypes eliloKeywords[] = { |
569 | {"label", LT_TITLE, '='}, |
570 | {"root", LT_ROOT, '='}, |
571 | {"default", LT_DEFAULT, '='}, |
572 | {"image", LT_KERNEL, '='}, |
573 | {"initrd", LT_INITRD, '='}, |
574 | {"append", LT_KERNELARGS, '='}, |
575 | {"vmm", LT_HYPER, '='}, |
576 | {NULL, 0, 0}, |
577 | }; |
578 | |
579 | struct keywordTypes siloKeywords[] = { |
580 | {"label", LT_TITLE, '='}, |
581 | {"root", LT_ROOT, '='}, |
582 | {"default", LT_DEFAULT, '='}, |
583 | {"image", LT_KERNEL, '='}, |
584 | {"other", LT_OTHER, '='}, |
585 | {"initrd", LT_INITRD, '='}, |
586 | {"append", LT_KERNELARGS, '='}, |
587 | {"boot", LT_BOOT, '='}, |
588 | {NULL, 0, 0}, |
589 | }; |
590 | |
591 | struct keywordTypes ziplKeywords[] = { |
592 | {"target", LT_BOOTROOT, '='}, |
593 | {"image", LT_KERNEL, '='}, |
594 | {"ramdisk", LT_INITRD, '='}, |
595 | {"parameters", LT_KERNELARGS, '='}, |
596 | {"default", LT_DEFAULT, '='}, |
597 | {NULL, 0, 0}, |
598 | }; |
599 | |
600 | struct keywordTypes extlinuxKeywords[] = { |
601 | {"label", LT_TITLE, ' '}, |
602 | {"root", LT_ROOT, ' '}, |
603 | {"default", LT_DEFAULT, ' '}, |
604 | {"kernel", LT_KERNEL, ' '}, |
605 | {"initrd", LT_INITRD, ' ', ','}, |
606 | {"append", LT_KERNELARGS, ' '}, |
607 | {"prompt", LT_UNKNOWN, ' '}, |
608 | {"fdt", LT_DEVTREE, ' '}, |
609 | {"fdtdir", LT_DEVTREE, ' '}, |
610 | {NULL, 0, 0}, |
611 | }; |
612 | |
613 | int useextlinuxmenu; |
614 | struct configFileInfo eliloConfigType = { |
615 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
616 | .keywords = eliloKeywords, |
617 | .entryStart = LT_KERNEL, |
618 | .needsBootPrefix = 1, |
619 | .argsInQuotes = 1, |
620 | .mbConcatArgs = 1, |
621 | .titlePosition = 1, |
622 | }; |
623 | |
624 | struct configFileInfo liloConfigType = { |
625 | .defaultConfig = "/etc/lilo.conf", |
626 | .keywords = liloKeywords, |
627 | .entryStart = LT_KERNEL, |
628 | .argsInQuotes = 1, |
629 | .maxTitleLength = 15, |
630 | .titlePosition = 1, |
631 | }; |
632 | |
633 | struct configFileInfo yabootConfigType = { |
634 | .defaultConfig = "/etc/yaboot.conf", |
635 | .keywords = yabootKeywords, |
636 | .entryStart = LT_KERNEL, |
637 | .needsBootPrefix = 1, |
638 | .argsInQuotes = 1, |
639 | .maxTitleLength = 15, |
640 | .mbAllowExtraInitRds = 1, |
641 | .titlePosition = 1, |
642 | }; |
643 | |
644 | struct configFileInfo siloConfigType = { |
645 | .defaultConfig = "/etc/silo.conf", |
646 | .keywords = siloKeywords, |
647 | .entryStart = LT_KERNEL, |
648 | .needsBootPrefix = 1, |
649 | .argsInQuotes = 1, |
650 | .maxTitleLength = 15, |
651 | .titlePosition = 1, |
652 | }; |
653 | |
654 | struct configFileInfo ziplConfigType = { |
655 | .defaultConfig = "/etc/zipl.conf", |
656 | .keywords = ziplKeywords, |
657 | .entryStart = LT_TITLE, |
658 | .argsInQuotes = 1, |
659 | .titleBracketed = 1, |
660 | }; |
661 | |
662 | struct configFileInfo extlinuxConfigType = { |
663 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
664 | .keywords = extlinuxKeywords, |
665 | .caseInsensitive = 1, |
666 | .entryStart = LT_TITLE, |
667 | .needsBootPrefix = 1, |
668 | .maxTitleLength = 255, |
669 | .mbAllowExtraInitRds = 1, |
670 | .defaultIsUnquoted = 1, |
671 | .titlePosition = 1, |
672 | }; |
673 | |
674 | struct grubConfig { |
675 | struct singleLine *theLines; |
676 | struct singleEntry *entries; |
677 | char *primaryIndent; |
678 | char *secondaryIndent; |
679 | int defaultImage; /* -1 if none specified -- this value is |
680 | * written out, overriding original */ |
681 | int fallbackImage; /* just like defaultImage */ |
682 | int flags; |
683 | struct configFileInfo *cfi; |
684 | int isModified; /* assumes only one entry added |
685 | per invocation of grubby */ |
686 | }; |
687 | |
688 | blkid_cache blkid; |
689 | |
690 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index); |
691 | struct singleEntry *findEntryByPath(struct grubConfig *cfg, |
692 | const char *path, const char *prefix, |
693 | int *index); |
694 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
695 | int *index); |
696 | static int readFile(int fd, char **bufPtr); |
697 | static void lineInit(struct singleLine *line); |
698 | struct singleLine *lineDup(struct singleLine *line); |
699 | static void lineFree(struct singleLine *line); |
700 | static int lineWrite(FILE * out, struct singleLine *line, |
701 | struct configFileInfo *cfi); |
702 | static int getNextLine(char **bufPtr, struct singleLine *line, |
703 | struct configFileInfo *cfi); |
704 | static char *getRootSpecifier(char *str); |
705 | static void requote(struct singleLine *line, struct configFileInfo *cfi); |
706 | static void insertElement(struct singleLine *line, |
707 | const char *item, int insertHere, |
708 | struct configFileInfo *cfi); |
709 | static void removeElement(struct singleLine *line, int removeHere); |
710 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
711 | struct configFileInfo *cfi); |
712 | static enum lineType_e getTypeByKeyword(char *keyword, |
713 | struct configFileInfo *cfi); |
714 | static struct singleLine *getLineByType(enum lineType_e type, |
715 | struct singleLine *line); |
716 | static int checkForExtLinux(struct grubConfig *config); |
717 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
718 | struct singleLine *tmplLine, |
719 | struct singleLine *prevLine, |
720 | const char *val, struct configFileInfo *cfi); |
721 | struct singleLine *addLine(struct singleEntry *entry, |
722 | struct configFileInfo *cfi, |
723 | enum lineType_e type, char *defaultIndent, |
724 | const char *val); |
725 | |
726 | static char *sdupprintf(const char *format, ...) |
727 | #ifdef __GNUC__ |
728 | __attribute__ ((format(printf, 1, 2))); |
729 | #else |
730 | ; |
731 | #endif |
732 | |
733 | static char *sdupprintf(const char *format, ...) |
734 | { |
735 | char *buf = NULL; |
736 | char c; |
737 | va_list args; |
738 | size_t size = 0; |
739 | va_start(args, format); |
740 | |
741 | /* XXX requires C99 vsnprintf behavior */ |
742 | size = vsnprintf(&c, 1, format, args) + 1; |
743 | if (size == -1) { |
744 | printf("ERROR: vsnprintf behavior is not C99\n"); |
745 | abort(); |
746 | } |
747 | |
748 | va_end(args); |
749 | va_start(args, format); |
750 | |
751 | buf = malloc(size); |
752 | if (buf == NULL) |
753 | return NULL; |
754 | vsnprintf(buf, size, format, args); |
755 | va_end(args); |
756 | |
757 | return buf; |
758 | } |
759 | |
760 | static inline int |
761 | kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive) |
762 | { |
763 | int kwl = strlen(kw->key); |
764 | int ll = strlen(label); |
765 | int rc; |
766 | int (*snc)(const char *s1, const char *s2, size_t n) = |
767 | case_insensitive ? strncasecmp : strncmp; |
768 | int (*sc)(const char *s1, const char *s2) = |
769 | case_insensitive ? strcasecmp : strcmp; |
770 | |
771 | rc = snc(kw->key, label, kwl); |
772 | if (rc) |
773 | return rc; |
774 | |
775 | for (int i = kwl; i < ll; i++) { |
776 | if (isspace(label[i])) |
777 | return 0; |
778 | if (kw->separatorChar && label[i] == kw->separatorChar) |
779 | return 0; |
780 | else if (kw->nextChar && label[i] == kw->nextChar) |
781 | return 0; |
782 | return sc(kw->key+kwl, label+kwl); |
783 | } |
784 | return 0; |
785 | } |
786 | |
787 | static enum lineType_e preferredLineType(enum lineType_e type, |
788 | struct configFileInfo *cfi) |
789 | { |
790 | if (isEfi && cfi == &grub2ConfigType) { |
791 | switch (type) { |
792 | case LT_KERNEL: |
793 | return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI; |
794 | case LT_INITRD: |
795 | return isEfiOnly ? LT_INITRD : LT_INITRD_EFI; |
796 | default: |
797 | return type; |
798 | } |
799 | #if defined(__i386__) || defined(__x86_64__) |
800 | } else if (cfi == &grub2ConfigType) { |
801 | switch (type) { |
802 | case LT_KERNEL: |
803 | return LT_KERNEL_16; |
804 | case LT_INITRD: |
805 | return LT_INITRD_16; |
806 | default: |
807 | return type; |
808 | } |
809 | #endif |
810 | } |
811 | return type; |
812 | } |
813 | |
814 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
815 | struct configFileInfo *cfi) |
816 | { |
817 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
818 | if (kw->type == type) |
819 | return kw; |
820 | } |
821 | return NULL; |
822 | } |
823 | |
824 | static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi) |
825 | { |
826 | struct keywordTypes *kt = getKeywordByType(type, cfi); |
827 | if (kt) |
828 | return kt->key; |
829 | return "unknown"; |
830 | } |
831 | |
832 | static char *getpathbyspec(char *device) |
833 | { |
834 | if (!blkid) |
835 | blkid_get_cache(&blkid, NULL); |
836 | |
837 | return blkid_get_devname(blkid, device, NULL); |
838 | } |
839 | |
840 | static char *getuuidbydev(char *device) |
841 | { |
842 | if (!blkid) |
843 | blkid_get_cache(&blkid, NULL); |
844 | |
845 | return blkid_get_tag_value(blkid, "UUID", device); |
846 | } |
847 | |
848 | static enum lineType_e getTypeByKeyword(char *keyword, |
849 | struct configFileInfo *cfi) |
850 | { |
851 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { |
852 | if (!kwcmp(kw, keyword, cfi->caseInsensitive)) |
853 | return kw->type; |
854 | } |
855 | return LT_UNKNOWN; |
856 | } |
857 | |
858 | static struct singleLine *getLineByType(enum lineType_e type, |
859 | struct singleLine *line) |
860 | { |
861 | dbgPrintf("getLineByType(%d): ", type); |
862 | for (; line; line = line->next) { |
863 | dbgPrintf("%d:%s ", line->type, |
864 | line->numElements ? line->elements[0]. |
865 | item : "(empty)"); |
866 | if (line->type & type) |
867 | break; |
868 | } |
869 | dbgPrintf(line ? "\n" : " (failed)\n"); |
870 | return line; |
871 | } |
872 | |
873 | static int isBracketedTitle(struct singleLine *line) |
874 | { |
875 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
876 | int len = strlen(line->elements[0].item); |
877 | if (*(line->elements[0].item + len - 1) == ']') { |
878 | /* FIXME: this is a hack... */ |
879 | if (strcmp(line->elements[0].item, "[defaultboot]")) { |
880 | return 1; |
881 | } |
882 | } |
883 | } |
884 | return 0; |
885 | } |
886 | |
887 | static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi) |
888 | { |
889 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
890 | (cfi->titleBracketed && isBracketedTitle(line)); |
891 | } |
892 | |
893 | /* extract the title from within brackets (for zipl) */ |
894 | static char *extractTitle(struct grubConfig *cfg, struct singleLine *line) |
895 | { |
896 | /* bracketed title... let's extract it */ |
897 | char *title = NULL; |
898 | if (line->type == LT_TITLE) { |
899 | char *tmp = line->elements[cfg->cfi->titlePosition].item; |
900 | if (cfg->cfi->titleBracketed) { |
901 | tmp++; |
902 | title = strdup(tmp); |
903 | *(title + strlen(title) - 1) = '\0'; |
904 | } else { |
905 | title = strdup(tmp); |
906 | } |
907 | } else if (line->type == LT_MENUENTRY) |
908 | title = strdup(line->elements[1].item); |
909 | else |
910 | return NULL; |
911 | return title; |
912 | } |
913 | |
914 | static int readFile(int fd, char **bufPtr) |
915 | { |
916 | int alloced = 0, size = 0, i = 0; |
917 | char *buf = NULL; |
918 | |
919 | do { |
920 | size += i; |
921 | if ((size + 1024) > alloced) { |
922 | alloced += 4096; |
923 | buf = realloc(buf, alloced + 1); |
924 | } |
925 | } while ((i = read(fd, buf + size, 1024)) > 0); |
926 | |
927 | if (i < 0) { |
928 | fprintf(stderr, _("error reading input: %s\n"), |
929 | strerror(errno)); |
930 | free(buf); |
931 | return 1; |
932 | } |
933 | |
934 | buf = realloc(buf, size + 2); |
935 | if (size == 0) |
936 | buf[size++] = '\n'; |
937 | else if (buf[size - 1] != '\n') |
938 | buf[size++] = '\n'; |
939 | buf[size] = '\0'; |
940 | |
941 | *bufPtr = buf; |
942 | |
943 | return 0; |
944 | } |
945 | |
946 | static void lineInit(struct singleLine *line) |
947 | { |
948 | line->type = LT_UNIDENTIFIED; |
949 | line->indent = NULL; |
950 | line->elements = NULL; |
951 | line->numElements = 0; |
952 | line->next = NULL; |
953 | } |
954 | |
955 | struct singleLine *lineDup(struct singleLine *line) |
956 | { |
957 | struct singleLine *newLine = malloc(sizeof(*newLine)); |
958 | |
959 | newLine->indent = strdup(line->indent); |
960 | newLine->next = NULL; |
961 | newLine->type = line->type; |
962 | newLine->numElements = line->numElements; |
963 | newLine->elements = malloc(sizeof(*newLine->elements) * |
964 | newLine->numElements); |
965 | |
966 | for (int i = 0; i < newLine->numElements; i++) { |
967 | newLine->elements[i].indent = strdup(line->elements[i].indent); |
968 | newLine->elements[i].item = strdup(line->elements[i].item); |
969 | } |
970 | |
971 | return newLine; |
972 | } |
973 | |
974 | static void lineFree(struct singleLine *line) |
975 | { |
976 | if (line->indent) |
977 | free(line->indent); |
978 | |
979 | for (int i = 0; i < line->numElements; i++) { |
980 | free(line->elements[i].item); |
981 | free(line->elements[i].indent); |
982 | } |
983 | |
984 | if (line->elements) |
985 | free(line->elements); |
986 | lineInit(line); |
987 | } |
988 | |
989 | static int lineWrite(FILE * out, struct singleLine *line, |
990 | struct configFileInfo *cfi) |
991 | { |
992 | if (fprintf(out, "%s", line->indent) == -1) |
993 | return -1; |
994 | |
995 | for (int i = 0; i < line->numElements; i++) { |
996 | /* Need to handle this, because we strip the quotes from |
997 | * menuentry when read it. */ |
998 | if (line->type == LT_MENUENTRY && i == 1) { |
999 | if (!isquote(*line->elements[i].item)) { |
1000 | int substring = 0; |
1001 | /* If the line contains nested quotes, we did |
1002 | * not strip the "interna" quotes and we must |
1003 | * use the right quotes again when writing |
1004 | * the updated file. */ |
1005 | for (int j = i; j < line->numElements; j++) { |
1006 | if (strchr(line->elements[i].item, '\'') |
1007 | != NULL) { |
1008 | substring = 1; |
1009 | fprintf(out, "\"%s\"", |
1010 | line->elements[i].item); |
1011 | break; |
1012 | } |
1013 | } |
1014 | if (!substring) |
1015 | fprintf(out, "\'%s\'", |
1016 | line->elements[i].item); |
1017 | } else { |
1018 | fprintf(out, "%s", line->elements[i].item); |
1019 | } |
1020 | fprintf(out, "%s", line->elements[i].indent); |
1021 | |
1022 | continue; |
1023 | } |
1024 | |
1025 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1026 | if (fputc('"', out) == EOF) |
1027 | return -1; |
1028 | |
1029 | if (fprintf(out, "%s", line->elements[i].item) == -1) |
1030 | return -1; |
1031 | if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE) |
1032 | if (fprintf(out, "%s", line->elements[i].indent) == -1) |
1033 | return -1; |
1034 | } |
1035 | |
1036 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1037 | if (fputc('"', out) == EOF) |
1038 | return -1; |
1039 | |
1040 | if (fprintf(out, "\n") == -1) |
1041 | return -1; |
1042 | |
1043 | return 0; |
1044 | } |
1045 | |
1046 | /* we've guaranteed that the buffer ends w/ \n\0 */ |
1047 | static int getNextLine(char **bufPtr, struct singleLine *line, |
1048 | struct configFileInfo *cfi) |
1049 | { |
1050 | char *end; |
1051 | char *start = *bufPtr; |
1052 | char *chptr; |
1053 | int elementsAlloced = 0; |
1054 | struct lineElement *element; |
1055 | int first = 1; |
1056 | |
1057 | lineFree(line); |
1058 | |
1059 | end = strchr(start, '\n'); |
1060 | *end = '\0'; |
1061 | *bufPtr = end + 1; |
1062 | |
1063 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; |
1064 | |
1065 | line->indent = strndup(start, chptr - start); |
1066 | start = chptr; |
1067 | |
1068 | while (start < end) { |
1069 | /* we know !isspace(*start) */ |
1070 | |
1071 | if (elementsAlloced == line->numElements) { |
1072 | elementsAlloced += 5; |
1073 | line->elements = realloc(line->elements, |
1074 | sizeof(*line->elements) * |
1075 | elementsAlloced); |
1076 | } |
1077 | |
1078 | element = line->elements + line->numElements; |
1079 | |
1080 | chptr = start; |
1081 | while (*chptr && !isspace(*chptr)) { |
1082 | if (first && *chptr == '=') |
1083 | break; |
1084 | chptr++; |
1085 | } |
1086 | if (line->type == LT_UNIDENTIFIED) |
1087 | line->type = getTypeByKeyword(start, cfi); |
1088 | element->item = strndup(start, chptr - start); |
1089 | start = chptr; |
1090 | |
1091 | /* lilo actually accepts the pathological case of |
1092 | * append = " foo " */ |
1093 | if (*start == '=') |
1094 | chptr = start + 1; |
1095 | else |
1096 | chptr = start; |
1097 | |
1098 | do { |
1099 | for (; *chptr && isspace(*chptr); chptr++) ; |
1100 | if (*chptr == '=') |
1101 | chptr = chptr + 1; |
1102 | } while (isspace(*chptr)); |
1103 | |
1104 | element->indent = strndup(start, chptr - start); |
1105 | start = chptr; |
1106 | |
1107 | line->numElements++; |
1108 | first = 0; |
1109 | } |
1110 | |
1111 | if (!line->numElements) |
1112 | line->type = LT_WHITESPACE; |
1113 | else { |
1114 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
1115 | if (line->type == LT_UNKNOWN) { |
1116 | /* zipl does [title] instead of something reasonable |
1117 | * like all the other boot loaders. kind of ugly */ |
1118 | if (cfi->titleBracketed && isBracketedTitle(line)) { |
1119 | line->type = LT_TITLE; |
1120 | } |
1121 | |
1122 | /* this is awkward, but we need to be able to handle |
1123 | * keywords that begin with a # (specifically for |
1124 | * #boot in grub.conf), but still make comments lines |
1125 | * with no elements (everything stored in the indent |
1126 | */ |
1127 | if (*line->elements[0].item == '#') { |
1128 | char *fullLine; |
1129 | int len; |
1130 | |
1131 | len = strlen(line->indent); |
1132 | for (int i = 0; i < line->numElements; i++) |
1133 | len += strlen(line->elements[i].item) + |
1134 | strlen(line->elements[i].indent); |
1135 | |
1136 | fullLine = malloc(len + 1); |
1137 | strcpy(fullLine, line->indent); |
1138 | free(line->indent); |
1139 | line->indent = fullLine; |
1140 | |
1141 | for (int i = 0; i < line->numElements; i++) { |
1142 | strcat(fullLine, |
1143 | line->elements[i].item); |
1144 | strcat(fullLine, |
1145 | line->elements[i].indent); |
1146 | free(line->elements[i].item); |
1147 | free(line->elements[i].indent); |
1148 | } |
1149 | |
1150 | line->type = LT_WHITESPACE; |
1151 | line->numElements = 0; |
1152 | } |
1153 | } else if (line->type == LT_INITRD) { |
1154 | struct keywordTypes *kw; |
1155 | |
1156 | kw = getKeywordByType(line->type, cfi); |
1157 | |
1158 | /* space isn't the only separator, we need to split |
1159 | * elements up more |
1160 | */ |
1161 | if (!isspace(kw->separatorChar)) { |
1162 | char indent[2] = ""; |
1163 | indent[0] = kw->separatorChar; |
1164 | for (int i = 1; i < line->numElements; i++) { |
1165 | char *p; |
1166 | int numNewElements; |
1167 | |
1168 | numNewElements = 0; |
1169 | p = line->elements[i].item; |
1170 | while (*p != '\0') { |
1171 | if (*p == kw->separatorChar) |
1172 | numNewElements++; |
1173 | p++; |
1174 | } |
1175 | if (line->numElements + |
1176 | numNewElements >= elementsAlloced) { |
1177 | elementsAlloced += |
1178 | numNewElements + 5; |
1179 | line->elements = |
1180 | realloc(line->elements, |
1181 | sizeof(*line-> |
1182 | elements) * |
1183 | elementsAlloced); |
1184 | } |
1185 | |
1186 | for (int j = line->numElements; j > i; |
1187 | j--) { |
1188 | line->elements[j + |
1189 | numNewElements] = |
1190 | line->elements[j]; |
1191 | } |
1192 | line->numElements += numNewElements; |
1193 | |
1194 | p = line->elements[i].item; |
1195 | while (*p != '\0') { |
1196 | |
1197 | while (*p != kw->separatorChar |
1198 | && *p != '\0') |
1199 | p++; |
1200 | if (*p == '\0') { |
1201 | break; |
1202 | } |
1203 | |
1204 | line->elements[i + 1].indent = |
1205 | line->elements[i].indent; |
1206 | line->elements[i].indent = |
1207 | strdup(indent); |
1208 | *p++ = '\0'; |
1209 | i++; |
1210 | line->elements[i].item = |
1211 | strdup(p); |
1212 | } |
1213 | } |
1214 | } |
1215 | } else if (line->type == LT_SET_VARIABLE) { |
1216 | /* and if it's a "set blah=" we need to split it |
1217 | * yet a third way to avoid rhbz# XXX FIXME :/ |
1218 | */ |
1219 | char *eq; |
1220 | int l; |
1221 | int numElements = line->numElements; |
1222 | struct lineElement *newElements; |
1223 | eq = strchr(line->elements[1].item, '='); |
1224 | if (!eq) |
1225 | return 0; |
1226 | l = eq - line->elements[1].item; |
1227 | if (eq[1] != 0) |
1228 | numElements++; |
1229 | newElements = calloc(numElements,sizeof (*newElements)); |
1230 | memcpy(&newElements[0], &line->elements[0], |
1231 | sizeof (newElements[0])); |
1232 | newElements[1].item = |
1233 | strndup(line->elements[1].item, l); |
1234 | newElements[1].indent = "="; |
1235 | *(eq++) = '\0'; |
1236 | newElements[2].item = strdup(eq); |
1237 | free(line->elements[1].item); |
1238 | if (line->elements[1].indent) |
1239 | newElements[2].indent = line->elements[1].indent; |
1240 | for (int i = 2; i < line->numElements; i++) { |
1241 | newElements[i+1].item = line->elements[i].item; |
1242 | newElements[i+1].indent = |
1243 | line->elements[i].indent; |
1244 | } |
1245 | free(line->elements); |
1246 | line->elements = newElements; |
1247 | line->numElements = numElements; |
1248 | } |
1249 | } |
1250 | |
1251 | return 0; |
1252 | } |
1253 | |
1254 | static int isnumber(const char *s) |
1255 | { |
1256 | int i; |
1257 | for (i = 0; s[i] != '\0'; i++) |
1258 | if (s[i] < '0' || s[i] > '9') |
1259 | return 0; |
1260 | return i; |
1261 | } |
1262 | |
1263 | static struct grubConfig *readConfig(const char *inName, |
1264 | struct configFileInfo *cfi) |
1265 | { |
1266 | int in; |
1267 | char *incoming = NULL, *head; |
1268 | int rc; |
1269 | int sawEntry = 0; |
1270 | int movedLine = 0; |
1271 | struct grubConfig *cfg; |
1272 | struct singleLine *last = NULL, *line, *defaultLine = NULL; |
1273 | char *end; |
1274 | struct singleEntry *entry = NULL; |
1275 | int len; |
1276 | char *buf; |
1277 | |
1278 | if (inName == NULL) { |
1279 | printf("Could not find bootloader configuration\n"); |
1280 | exit(1); |
1281 | } else if (!strcmp(inName, "-")) { |
1282 | in = 0; |
1283 | } else { |
1284 | if ((in = open(inName, O_RDONLY)) < 0) { |
1285 | fprintf(stderr, _("error opening %s for read: %s\n"), |
1286 | inName, strerror(errno)); |
1287 | return NULL; |
1288 | } |
1289 | } |
1290 | |
1291 | rc = readFile(in, &incoming); |
1292 | close(in); |
1293 | if (rc) |
1294 | return NULL; |
1295 | |
1296 | head = incoming; |
1297 | cfg = malloc(sizeof(*cfg)); |
1298 | cfg->primaryIndent = strdup(""); |
1299 | cfg->secondaryIndent = strdup("\t"); |
1300 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; |
1301 | cfg->cfi = cfi; |
1302 | cfg->theLines = NULL; |
1303 | cfg->entries = NULL; |
1304 | cfg->fallbackImage = 0; |
1305 | cfg->isModified = 0; |
1306 | |
1307 | /* copy everything we have */ |
1308 | while (*head) { |
1309 | line = malloc(sizeof(*line)); |
1310 | lineInit(line); |
1311 | |
1312 | if (getNextLine(&head, line, cfi)) { |
1313 | free(line); |
1314 | /* XXX memory leak of everything in cfg */ |
1315 | return NULL; |
1316 | } |
1317 | |
1318 | if (!sawEntry && line->numElements) { |
1319 | free(cfg->primaryIndent); |
1320 | cfg->primaryIndent = strdup(line->indent); |
1321 | } else if (line->numElements) { |
1322 | free(cfg->secondaryIndent); |
1323 | cfg->secondaryIndent = strdup(line->indent); |
1324 | } |
1325 | |
1326 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
1327 | sawEntry = 1; |
1328 | if (!entry) { |
1329 | cfg->entries = malloc(sizeof(*entry)); |
1330 | entry = cfg->entries; |
1331 | } else { |
1332 | entry->next = malloc(sizeof(*entry)); |
1333 | entry = entry->next; |
1334 | } |
1335 | |
1336 | entry->skip = 0; |
1337 | entry->multiboot = 0; |
1338 | entry->lines = NULL; |
1339 | entry->next = NULL; |
1340 | } |
1341 | |
1342 | if (line->type == LT_SET_VARIABLE) { |
1343 | dbgPrintf("found 'set' command (%d elements): ", |
1344 | line->numElements); |
1345 | dbgPrintf("%s", line->indent); |
1346 | for (int i = 0; i < line->numElements; i++) |
1347 | dbgPrintf("\"%s\"%s", line->elements[i].item, |
1348 | line->elements[i].indent); |
1349 | dbgPrintf("\n"); |
1350 | struct keywordTypes *kwType = |
1351 | getKeywordByType(LT_DEFAULT, cfi); |
1352 | if (kwType && line->numElements == 3 |
1353 | && !strcmp(line->elements[1].item, kwType->key) |
1354 | && !is_special_grub2_variable( |
1355 | line->elements[2].item)) { |
1356 | dbgPrintf("Line sets default config\n"); |
1357 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1358 | defaultLine = line; |
1359 | } |
1360 | } else if (iskernel(line->type)) { |
1361 | /* if by some freak chance this is multiboot and the |
1362 | * "module" lines came earlier in the template, make |
1363 | * sure to use LT_HYPER instead of LT_KERNEL now |
1364 | */ |
1365 | if (entry && entry->multiboot) |
1366 | line->type = LT_HYPER; |
1367 | |
1368 | } else if (line->type == LT_MBMODULE) { |
1369 | /* go back and fix the LT_KERNEL line to indicate |
1370 | * LT_HYPER instead, now that we know this is a |
1371 | * multiboot entry. This only applies to grub, but |
1372 | * that's the only place we should find LT_MBMODULE |
1373 | * lines anyway. |
1374 | */ |
1375 | for (struct singleLine * l = entry->lines; l; |
1376 | l = l->next) { |
1377 | if (l->type == LT_HYPER) |
1378 | break; |
1379 | else if (iskernel(l->type)) { |
1380 | l->type = LT_HYPER; |
1381 | break; |
1382 | } |
1383 | } |
1384 | entry->multiboot = 1; |
1385 | |
1386 | } else if (line->type == LT_HYPER) { |
1387 | entry->multiboot = 1; |
1388 | |
1389 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1390 | cfg->fallbackImage = |
1391 | strtol(line->elements[1].item, &end, 10); |
1392 | if (*end) |
1393 | cfg->fallbackImage = -1; |
1394 | |
1395 | } else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted) |
1396 | || (line->type == LT_TITLE |
1397 | && line->numElements > 1)) { |
1398 | /* make the title/default a single argument (undoing |
1399 | * our parsing) */ |
1400 | len = 0; |
1401 | for (int i = 1; i < line->numElements; i++) { |
1402 | len += strlen(line->elements[i].item); |
1403 | len += strlen(line->elements[i].indent); |
1404 | } |
1405 | buf = malloc(len + 1); |
1406 | *buf = '\0'; |
1407 | |
1408 | for (int i = 1; i < line->numElements; i++) { |
1409 | strcat(buf, line->elements[i].item); |
1410 | free(line->elements[i].item); |
1411 | |
1412 | if ((i + 1) != line->numElements) { |
1413 | strcat(buf, line->elements[i].indent); |
1414 | free(line->elements[i].indent); |
1415 | } |
1416 | } |
1417 | |
1418 | line->elements[1].indent = |
1419 | line->elements[line->numElements - 1].indent; |
1420 | line->elements[1].item = buf; |
1421 | line->numElements = 2; |
1422 | } else if (line->type == LT_MENUENTRY && line->numElements > 3) { |
1423 | /* let --remove-kernel="TITLE=what" work */ |
1424 | len = 0; |
1425 | char *extras; |
1426 | char *title; |
1427 | /* initially unseen value */ |
1428 | char quote_char = '\0'; |
1429 | |
1430 | for (int i = 1; i < line->numElements; i++) { |
1431 | len += strlen(line->elements[i].item); |
1432 | len += strlen(line->elements[i].indent); |
1433 | } |
1434 | buf = malloc(len + 1); |
1435 | *buf = '\0'; |
1436 | |
1437 | /* allocate mem for extra flags. */ |
1438 | extras = malloc(len + 1); |
1439 | *extras = '\0'; |
1440 | |
1441 | /* get title. */ |
1442 | for (int i = 0; i < line->numElements; i++) { |
1443 | if (!strcmp |
1444 | (line->elements[i].item, "menuentry")) |
1445 | continue; |
1446 | if (isquote(*line->elements[i].item) |
1447 | && quote_char == '\0') { |
1448 | /* ensure we properly pair off quotes */ |
1449 | quote_char = *line->elements[i].item; |
1450 | title = line->elements[i].item + 1; |
1451 | } else { |
1452 | title = line->elements[i].item; |
1453 | } |
1454 | |
1455 | len = strlen(title); |
1456 | if (title[len - 1] == quote_char) { |
1457 | strncat(buf, title, len - 1); |
1458 | break; |
1459 | } else { |
1460 | strcat(buf, title); |
1461 | strcat(buf, line->elements[i].indent); |
1462 | } |
1463 | } |
1464 | |
1465 | /* get extras */ |
1466 | int count = 0; |
1467 | quote_char = '\0'; |
1468 | for (int i = 0; i < line->numElements; i++) { |
1469 | if (count >= 2) { |
1470 | strcat(extras, line->elements[i].item); |
1471 | strcat(extras, |
1472 | line->elements[i].indent); |
1473 | } |
1474 | |
1475 | if (!strcmp |
1476 | (line->elements[i].item, "menuentry")) |
1477 | continue; |
1478 | |
1479 | /* count ' or ", there should be two in menuentry line. */ |
1480 | if (isquote(*line->elements[i].item) |
1481 | && quote_char == '\0') { |
1482 | /* ensure we properly pair off quotes */ |
1483 | quote_char = *line->elements[i].item; |
1484 | count++; |
1485 | } |
1486 | |
1487 | len = strlen(line->elements[i].item); |
1488 | |
1489 | if (line->elements[i].item[len - 1] == |
1490 | quote_char) |
1491 | count++; |
1492 | |
1493 | /* ok, we get the final ' or ", others are extras. */ |
1494 | } |
1495 | line->elements[1].indent = |
1496 | line->elements[line->numElements - 2].indent; |
1497 | line->elements[1].item = buf; |
1498 | line->elements[2].indent = |
1499 | line->elements[line->numElements - 2].indent; |
1500 | line->elements[2].item = extras; |
1501 | line->numElements = 3; |
1502 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
1503 | /* Strip off any " which may be present; they'll be |
1504 | * put back on write. This is one of the few (the |
1505 | * only?) places that grubby canonicalizes the output |
1506 | */ |
1507 | if (line->numElements >= 2) { |
1508 | int last, len; |
1509 | |
1510 | if (isquote(*line->elements[1].item)) |
1511 | memmove(line->elements[1].item, |
1512 | line->elements[1].item + 1, |
1513 | strlen(line->elements[1].item + |
1514 | 1) + 1); |
1515 | |
1516 | last = line->numElements - 1; |
1517 | len = strlen(line->elements[last].item) - 1; |
1518 | if (isquote(line->elements[last].item[len])) |
1519 | line->elements[last].item[len] = '\0'; |
1520 | } |
1521 | } |
1522 | |
1523 | if (line->type == LT_DEFAULT && line->numElements == 2) { |
1524 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1525 | defaultLine = line; |
1526 | } |
1527 | |
1528 | /* If we find a generic config option which should live at the |
1529 | top of the file, move it there. Old versions of grubby were |
1530 | probably responsible for putting new images in the wrong |
1531 | place in front of it anyway. */ |
1532 | if (sawEntry && line->type == LT_GENERIC) { |
1533 | struct singleLine **l = &cfg->theLines; |
1534 | struct singleLine **last_nonws = &cfg->theLines; |
1535 | while (*l) { |
1536 | if ((*l)->type != LT_WHITESPACE) |
1537 | last_nonws = &((*l)->next); |
1538 | l = &((*l)->next); |
1539 | } |
1540 | line->next = *last_nonws; |
1541 | *last_nonws = line; |
1542 | movedLine = 1; |
1543 | continue; /* without setting 'last' */ |
1544 | } |
1545 | |
1546 | /* If a second line of whitespace happens after a generic |
1547 | * option which was moved, drop it. */ |
1548 | if (movedLine && line->type == LT_WHITESPACE |
1549 | && last->type == LT_WHITESPACE) { |
1550 | lineFree(line); |
1551 | free(line); |
1552 | movedLine = 0; |
1553 | continue; |
1554 | } |
1555 | movedLine = 0; |
1556 | |
1557 | if (sawEntry) { |
1558 | if (!entry->lines) |
1559 | entry->lines = line; |
1560 | else |
1561 | last->next = line; |
1562 | dbgPrintf("readConfig added %s to %p\n", |
1563 | getKeyByType(line->type, cfi), entry); |
1564 | |
1565 | /* we could have seen this outside of an entry... if |
1566 | * so, we ignore it like any other line we don't grok |
1567 | */ |
1568 | if (line->type == LT_ENTRY_END && sawEntry) |
1569 | sawEntry = 0; |
1570 | } else { |
1571 | if (!cfg->theLines) |
1572 | cfg->theLines = line; |
1573 | else |
1574 | last->next = line; |
1575 | dbgPrintf("readConfig added %s to cfg\n", |
1576 | getKeyByType(line->type, cfi)); |
1577 | } |
1578 | |
1579 | last = line; |
1580 | } |
1581 | |
1582 | free(incoming); |
1583 | |
1584 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1585 | if (defaultLine) { |
1586 | if (defaultLine->numElements > 2 && |
1587 | cfi->defaultSupportSaved && |
1588 | !strncmp(defaultLine->elements[2].item, |
1589 | "\"${saved_entry}\"", 16)) { |
1590 | cfg->cfi->defaultIsSaved = 1; |
1591 | cfg->defaultImage = DEFAULT_SAVED_GRUB2; |
1592 | if (cfg->cfi->getEnv) { |
1593 | char *defTitle = |
1594 | cfi->getEnv(cfg->cfi, "saved_entry"); |
1595 | if (defTitle) { |
1596 | int index = 0; |
1597 | if (isnumber(defTitle)) { |
1598 | index = atoi(defTitle); |
1599 | entry = |
1600 | findEntryByIndex(cfg, |
1601 | index); |
1602 | } else { |
1603 | entry = |
1604 | findEntryByTitle(cfg, |
1605 | defTitle, |
1606 | &index); |
1607 | } |
1608 | if (entry) |
1609 | cfg->defaultImage = index; |
1610 | } |
1611 | } |
1612 | } else if (cfi->defaultIsVariable) { |
1613 | if (defaultLine->numElements == 2) { |
1614 | char *value = defaultLine->elements[1].item + 8; |
1615 | while (*value && (*value == '"' || |
1616 | *value == '\'' || |
1617 | *value == ' ' || |
1618 | *value == '\t')) |
1619 | value++; |
1620 | cfg->defaultImage = strtol(value, &end, 10); |
1621 | while (*end && (*end == '"' || *end == '\'' || |
1622 | *end == ' ' || *end == '\t')) |
1623 | end++; |
1624 | if (*end) |
1625 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1626 | } else if (defaultLine->numElements == 3) { |
1627 | char *value = defaultLine->elements[2].item; |
1628 | while (*value && (*value == '"' || |
1629 | *value == '\'' || |
1630 | *value == ' ' || |
1631 | *value == '\t')) |
1632 | value++; |
1633 | cfg->defaultImage = strtol(value, &end, 10); |
1634 | while (*end && (*end == '"' || *end == '\'' || |
1635 | *end == ' ' || *end == '\t')) |
1636 | end++; |
1637 | if (*end) |
1638 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1639 | } |
1640 | } else if (cfi->defaultSupportSaved && |
1641 | !strncmp(defaultLine->elements[1].item, "saved", |
1642 | 5)) { |
1643 | cfg->defaultImage = DEFAULT_SAVED; |
1644 | } else if (cfi->defaultIsIndex) { |
1645 | cfg->defaultImage = |
1646 | strtol(defaultLine->elements[1].item, &end, 10); |
1647 | if (*end) |
1648 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1649 | } else if (defaultLine->numElements >= 2) { |
1650 | int i = 0; |
1651 | while ((entry = findEntryByIndex(cfg, i))) { |
1652 | for (line = entry->lines; line; |
1653 | line = line->next) |
1654 | if (line->type == LT_TITLE) |
1655 | break; |
1656 | |
1657 | if (!cfi->titleBracketed) { |
1658 | if (line && (line->numElements >= 2) && |
1659 | !strcmp(defaultLine->elements[1]. |
1660 | item, |
1661 | line->elements[1].item)) |
1662 | break; |
1663 | } else if (line) { |
1664 | if (!strcmp |
1665 | (defaultLine->elements[1].item, |
1666 | extractTitle(cfg, line))) |
1667 | break; |
1668 | } |
1669 | i++; |
1670 | entry = NULL; |
1671 | } |
1672 | |
1673 | if (entry) { |
1674 | cfg->defaultImage = i; |
1675 | } else { |
1676 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1677 | } |
1678 | } |
1679 | } else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) { |
1680 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); |
1681 | if (defTitle) { |
1682 | int index = 0; |
1683 | if (isnumber(defTitle)) { |
1684 | index = atoi(defTitle); |
1685 | entry = findEntryByIndex(cfg, index); |
1686 | } else { |
1687 | entry = findEntryByTitle(cfg, defTitle, &index); |
1688 | } |
1689 | if (entry) |
1690 | cfg->defaultImage = index; |
1691 | } |
1692 | } else { |
1693 | cfg->defaultImage = FIRST_ENTRY_INDEX; |
1694 | } |
1695 | |
1696 | return cfg; |
1697 | } |
1698 | |
1699 | static void writeDefault(FILE * out, char *indent, |
1700 | char *separator, struct grubConfig *cfg) |
1701 | { |
1702 | struct singleEntry *entry; |
1703 | struct singleLine *line; |
1704 | int i; |
1705 | |
1706 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) |
1707 | return; |
1708 | |
1709 | if (cfg->defaultImage == DEFAULT_SAVED) |
1710 | fprintf(out, "%sdefault%ssaved\n", indent, separator); |
1711 | else if (cfg->cfi->defaultIsSaved) { |
1712 | fprintf(out, "%sset default=\"${saved_entry}\"\n", indent); |
1713 | if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) { |
1714 | char *title; |
1715 | int trueIndex, currentIndex; |
1716 | |
1717 | trueIndex = 0; |
1718 | currentIndex = 0; |
1719 | |
1720 | while ((entry = findEntryByIndex(cfg, currentIndex))) { |
1721 | if (!entry->skip) { |
1722 | if (trueIndex == cfg->defaultImage) { |
1723 | break; |
1724 | } |
1725 | trueIndex++; |
1726 | } |
1727 | currentIndex++; |
1728 | } |
1729 | line = getLineByType(LT_MENUENTRY, entry->lines); |
1730 | if (!line) |
1731 | line = getLineByType(LT_TITLE, entry->lines); |
1732 | if (line) { |
1733 | title = extractTitle(cfg, line); |
1734 | if (title) |
1735 | cfg->cfi->setEnv(cfg->cfi, |
1736 | "saved_entry", title); |
1737 | } |
1738 | } |
1739 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
1740 | if (cfg->cfi->defaultIsIndex) { |
1741 | if (cfg->cfi->defaultIsVariable) { |
1742 | fprintf(out, "%sset default=\"%d\"\n", indent, |
1743 | cfg->defaultImage); |
1744 | } else { |
1745 | fprintf(out, "%sdefault%s%d\n", indent, |
1746 | separator, cfg->defaultImage); |
1747 | } |
1748 | } else { |
1749 | int image = cfg->defaultImage; |
1750 | |
1751 | entry = cfg->entries; |
1752 | while (entry && entry->skip) |
1753 | entry = entry->next; |
1754 | |
1755 | i = 0; |
1756 | while (entry && i < image) { |
1757 | entry = entry->next; |
1758 | |
1759 | while (entry && entry->skip) |
1760 | entry = entry->next; |
1761 | i++; |
1762 | } |
1763 | |
1764 | if (!entry) |
1765 | return; |
1766 | |
1767 | line = getLineByType(LT_TITLE, entry->lines); |
1768 | |
1769 | if (line && line->numElements >= 2) |
1770 | fprintf(out, "%sdefault%s%s\n", indent, |
1771 | separator, line->elements[1].item); |
1772 | else if (line && (line->numElements == 1) |
1773 | && cfg->cfi->titleBracketed) { |
1774 | char *title = extractTitle(cfg, line); |
1775 | if (title) { |
1776 | fprintf(out, "%sdefault%s%s\n", indent, |
1777 | separator, title); |
1778 | free(title); |
1779 | } |
1780 | } |
1781 | } |
1782 | } |
1783 | } |
1784 | |
1785 | static int writeConfig(struct grubConfig *cfg, char *outName, |
1786 | const char *prefix) |
1787 | { |
1788 | FILE *out; |
1789 | struct singleLine *line; |
1790 | struct singleEntry *entry; |
1791 | char *tmpOutName; |
1792 | int needs = MAIN_DEFAULT; |
1793 | struct stat sb; |
1794 | int i; |
1795 | int rc = 0; |
1796 | |
1797 | if (!strcmp(outName, "-")) { |
1798 | out = stdout; |
1799 | tmpOutName = NULL; |
1800 | } else { |
1801 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { |
1802 | char *buf; |
1803 | int len = 256; |
1804 | int rc; |
1805 | |
1806 | /* most likely the symlink is relative, so change our |
1807 | directory to the dir of the symlink */ |
1808 | char *dir = strdupa(outName); |
1809 | rc = chdir(dirname(dir)); |
1810 | do { |
1811 | buf = alloca(len + 1); |
1812 | rc = readlink(basename(outName), buf, len); |
1813 | if (rc == len) |
1814 | len += 256; |
1815 | } while (rc == len); |
1816 | |
1817 | if (rc < 0) { |
1818 | fprintf(stderr, |
1819 | _ |
1820 | ("grubby: error readlink link %s: %s\n"), |
1821 | outName, strerror(errno)); |
1822 | return 1; |
1823 | } |
1824 | |
1825 | outName = buf; |
1826 | outName[rc] = '\0'; |
1827 | } |
1828 | |
1829 | tmpOutName = alloca(strlen(outName) + 2); |
1830 | sprintf(tmpOutName, "%s-", outName); |
1831 | out = fopen(tmpOutName, "w"); |
1832 | if (!out) { |
1833 | fprintf(stderr, _("grubby: error creating %s: %s\n"), |
1834 | tmpOutName, strerror(errno)); |
1835 | return 1; |
1836 | } |
1837 | |
1838 | if (!stat(outName, &sb)) { |
1839 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { |
1840 | fprintf(stderr, |
1841 | _ |
1842 | ("grubby: error setting perms on %s: %s\n"), |
1843 | tmpOutName, strerror(errno)); |
1844 | fclose(out); |
1845 | unlink(tmpOutName); |
1846 | return 1; |
1847 | } |
1848 | } |
1849 | } |
1850 | |
1851 | line = cfg->theLines; |
1852 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1853 | while (line) { |
1854 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1855 | line->numElements == 3 && |
1856 | !strcmp(line->elements[1].item, defaultKw->key) && |
1857 | !is_special_grub2_variable(line->elements[2].item)) { |
1858 | writeDefault(out, line->indent, |
1859 | line->elements[0].indent, cfg); |
1860 | needs &= ~MAIN_DEFAULT; |
1861 | } else if (line->type == LT_DEFAULT) { |
1862 | writeDefault(out, line->indent, |
1863 | line->elements[0].indent, cfg); |
1864 | needs &= ~MAIN_DEFAULT; |
1865 | } else if (line->type == LT_FALLBACK) { |
1866 | if (cfg->fallbackImage > -1) |
1867 | fprintf(out, "%s%s%s%d\n", line->indent, |
1868 | line->elements[0].item, |
1869 | line->elements[0].indent, |
1870 | cfg->fallbackImage); |
1871 | } else { |
1872 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1873 | fprintf(stderr, |
1874 | _("grubby: error writing %s: %s\n"), |
1875 | tmpOutName, strerror(errno)); |
1876 | fclose(out); |
1877 | unlink(tmpOutName); |
1878 | return 1; |
1879 | } |
1880 | } |
1881 | |
1882 | line = line->next; |
1883 | } |
1884 | |
1885 | if (needs & MAIN_DEFAULT) { |
1886 | writeDefault(out, cfg->primaryIndent, "=", cfg); |
1887 | needs &= ~MAIN_DEFAULT; |
1888 | } |
1889 | |
1890 | i = 0; |
1891 | while ((entry = findEntryByIndex(cfg, i++))) { |
1892 | if (entry->skip) |
1893 | continue; |
1894 | |
1895 | line = entry->lines; |
1896 | while (line) { |
1897 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1898 | fprintf(stderr, |
1899 | _("grubby: error writing %s: %s\n"), |
1900 | tmpOutName, strerror(errno)); |
1901 | fclose(out); |
1902 | unlink(tmpOutName); |
1903 | return 1; |
1904 | } |
1905 | line = line->next; |
1906 | } |
1907 | } |
1908 | |
1909 | if (tmpOutName) { |
1910 | /* write userspace buffers */ |
1911 | if (fflush(out)) |
1912 | rc = 1; |
1913 | |
1914 | /* purge the write-back cache with fsync() */ |
1915 | if (fsync(fileno(out))) |
1916 | rc = 1; |
1917 | |
1918 | if (fclose(out)) |
1919 | rc = 1; |
1920 | |
1921 | if (rc == 0 && rename(tmpOutName, outName)) { |
1922 | unlink(tmpOutName); |
1923 | rc = 1; |
1924 | } |
1925 | |
1926 | /* fsync() the destination directory after rename */ |
1927 | if (rc == 0) { |
1928 | int dirfd; |
1929 | |
1930 | dirfd = open(dirname(strdupa(outName)), O_RDONLY); |
1931 | if (dirfd < 0) |
1932 | rc = 1; |
1933 | else if (fsync(dirfd)) |
1934 | rc = 1; |
1935 | |
1936 | if (dirfd >= 0) |
1937 | close(dirfd); |
1938 | } |
1939 | |
1940 | if (rc == 1) |
1941 | fprintf(stderr, |
1942 | _("grubby: error flushing data: %m\n")); |
1943 | } |
1944 | |
1945 | return rc; |
1946 | } |
1947 | |
1948 | static int numEntries(struct grubConfig *cfg) |
1949 | { |
1950 | int i = 0; |
1951 | struct singleEntry *entry; |
1952 | |
1953 | entry = cfg->entries; |
1954 | while (entry) { |
1955 | if (!entry->skip) |
1956 | i++; |
1957 | entry = entry->next; |
1958 | } |
1959 | return i; |
1960 | } |
1961 | |
1962 | static char *findDiskForRoot() |
1963 | { |
1964 | int fd; |
1965 | char buf[65536]; |
1966 | char *devname; |
1967 | char *chptr; |
1968 | int rc; |
1969 | |
1970 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { |
1971 | fprintf(stderr, "grubby: failed to open %s: %s\n", |
1972 | _PATH_MOUNTED, strerror(errno)); |
1973 | return NULL; |
1974 | } |
1975 | |
1976 | rc = read(fd, buf, sizeof(buf) - 1); |
1977 | if (rc <= 0) { |
1978 | fprintf(stderr, "grubby: failed to read %s: %s\n", |
1979 | _PATH_MOUNTED, strerror(errno)); |
1980 | close(fd); |
1981 | return NULL; |
1982 | } |
1983 | close(fd); |
1984 | buf[rc] = '\0'; |
1985 | chptr = buf; |
1986 | |
1987 | char *foundanswer = NULL; |
1988 | |
1989 | while (chptr && chptr != buf + rc) { |
1990 | devname = chptr; |
1991 | |
1992 | /* |
1993 | * The first column of a mtab entry is the device, but if the |
1994 | * entry is a special device it won't start with /, so move |
1995 | * on to the next line. |
1996 | */ |
1997 | if (*devname != '/') { |
1998 | chptr = strchr(chptr, '\n'); |
1999 | if (chptr) |
2000 | chptr++; |
2001 | continue; |
2002 | } |
2003 | |
2004 | /* Seek to the next space */ |
2005 | chptr = strchr(chptr, ' '); |
2006 | if (!chptr) { |
2007 | fprintf(stderr, "grubby: error parsing %s: %s\n", |
2008 | _PATH_MOUNTED, strerror(errno)); |
2009 | return NULL; |
2010 | } |
2011 | |
2012 | /* |
2013 | * The second column of a mtab entry is the mount point, we |
2014 | * are looking for '/' obviously. |
2015 | */ |
2016 | if (*(++chptr) == '/' && *(++chptr) == ' ') { |
2017 | /* remember the last / entry in mtab */ |
2018 | foundanswer = devname; |
2019 | } |
2020 | |
2021 | /* Next line */ |
2022 | chptr = strchr(chptr, '\n'); |
2023 | if (chptr) |
2024 | chptr++; |
2025 | } |
2026 | |
2027 | /* Return the last / entry found */ |
2028 | if (foundanswer) { |
2029 | chptr = strchr(foundanswer, ' '); |
2030 | *chptr = '\0'; |
2031 | return strdup(foundanswer); |
2032 | } |
2033 | |
2034 | return NULL; |
2035 | } |
2036 | |
2037 | void printEntry(struct singleEntry *entry, FILE * f) |
2038 | { |
2039 | int i; |
2040 | struct singleLine *line; |
2041 | |
2042 | for (line = entry->lines; line; line = line->next) { |
2043 | log_message(f, "DBG: %s", line->indent); |
2044 | for (i = 0; i < line->numElements; i++) { |
2045 | /* Need to handle this, because we strip the quotes from |
2046 | * menuentry when read it. */ |
2047 | if (line->type == LT_MENUENTRY && i == 1) { |
2048 | if (!isquote(*line->elements[i].item)) |
2049 | log_message(f, "\'%s\'", |
2050 | line->elements[i].item); |
2051 | else |
2052 | log_message(f, "%s", |
2053 | line->elements[i].item); |
2054 | log_message(f, "%s", line->elements[i].indent); |
2055 | |
2056 | continue; |
2057 | } |
2058 | |
2059 | log_message(f, "%s%s", |
2060 | line->elements[i].item, |
2061 | line->elements[i].indent); |
2062 | } |
2063 | log_message(f, "\n"); |
2064 | } |
2065 | } |
2066 | |
2067 | void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt, |
2068 | ...) |
2069 | { |
2070 | static int once; |
2071 | va_list argp, argq; |
2072 | |
2073 | va_start(argp, fmt); |
2074 | |
2075 | va_copy(argq, argp); |
2076 | if (!once) { |
2077 | log_time(NULL); |
2078 | log_message(NULL, "command line: %s\n", saved_command_line); |
2079 | } |
2080 | log_message(NULL, "DBG: Image entry %s: ", |
2081 | okay ? "succeeded" : "failed"); |
2082 | log_vmessage(NULL, fmt, argq); |
2083 | |
2084 | printEntry(entry, NULL); |
2085 | va_end(argq); |
2086 | |
2087 | if (!debug) { |
2088 | once = 1; |
2089 | va_end(argp); |
2090 | return; |
2091 | } |
2092 | |
2093 | if (okay) { |
2094 | va_end(argp); |
2095 | return; |
2096 | } |
2097 | |
2098 | if (!once) |
2099 | log_message(stderr, "DBG: command line: %s\n", |
2100 | saved_command_line); |
2101 | once = 1; |
2102 | fprintf(stderr, "DBG: Image entry failed: "); |
2103 | vfprintf(stderr, fmt, argp); |
2104 | printEntry(entry, stderr); |
2105 | va_end(argp); |
2106 | } |
2107 | |
2108 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
2109 | |
2110 | static int endswith(const char *s, char c) |
2111 | { |
2112 | int slen; |
2113 | |
2114 | if (!s || !s[0]) |
2115 | return 0; |
2116 | slen = strlen(s) - 1; |
2117 | |
2118 | return s[slen] == c; |
2119 | } |
2120 | |
2121 | int suitableImage(struct singleEntry *entry, const char *bootPrefix, |
2122 | int skipRemoved, int flags) |
2123 | { |
2124 | struct singleLine *line; |
2125 | char *fullName; |
2126 | int i; |
2127 | char *dev; |
2128 | char *rootspec; |
2129 | char *rootdev; |
2130 | |
2131 | if (skipRemoved && entry->skip) { |
2132 | notSuitablePrintf(entry, 0, "marked to skip\n"); |
2133 | return 0; |
2134 | } |
2135 | |
2136 | line = |
2137 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2138 | entry->lines); |
2139 | if (!line) { |
2140 | notSuitablePrintf(entry, 0, "no line found\n"); |
2141 | return 0; |
2142 | } |
2143 | if (line->numElements < 2) { |
2144 | notSuitablePrintf(entry, 0, "line has only %d elements\n", |
2145 | line->numElements); |
2146 | return 0; |
2147 | } |
2148 | |
2149 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
2150 | notSuitablePrintf(entry, 1, "\n"); |
2151 | return 1; |
2152 | } |
2153 | |
2154 | fullName = alloca(strlen(bootPrefix) + |
2155 | strlen(line->elements[1].item) + 1); |
2156 | rootspec = getRootSpecifier(line->elements[1].item); |
2157 | int rootspec_offset = rootspec ? strlen(rootspec) : 0; |
2158 | int hasslash = endswith(bootPrefix, '/') || |
2159 | beginswith(line->elements[1].item + rootspec_offset, '/'); |
2160 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", |
2161 | line->elements[1].item + rootspec_offset); |
2162 | if (access(fullName, R_OK)) { |
2163 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); |
2164 | return 0; |
2165 | } |
2166 | for (i = 2; i < line->numElements; i++) |
2167 | if (!strncasecmp(line->elements[i].item, "root=", 5)) |
2168 | break; |
2169 | if (i < line->numElements) { |
2170 | dev = line->elements[i].item + 5; |
2171 | } else { |
2172 | /* look for a lilo style LT_ROOT line */ |
2173 | line = getLineByType(LT_ROOT, entry->lines); |
2174 | |
2175 | if (line && line->numElements >= 2) { |
2176 | dev = line->elements[1].item; |
2177 | } else { |
2178 | /* didn't succeed in finding a LT_ROOT, let's try |
2179 | * LT_KERNELARGS. grub+multiboot uses LT_MBMODULE |
2180 | * for the args, so check that too. |
2181 | */ |
2182 | line = |
2183 | getLineByType(LT_KERNELARGS | LT_MBMODULE, |
2184 | entry->lines); |
2185 | |
2186 | /* failed to find one */ |
2187 | if (!line) { |
2188 | notSuitablePrintf(entry, 0, "no line found\n"); |
2189 | return 0; |
2190 | } |
2191 | |
2192 | for (i = 1; i < line->numElements; i++) |
2193 | if (!strncasecmp |
2194 | (line->elements[i].item, "root=", 5)) |
2195 | break; |
2196 | if (i < line->numElements) |
2197 | dev = line->elements[i].item + 5; |
2198 | else { |
2199 | notSuitablePrintf(entry, 0, |
2200 | "no root= entry found\n"); |
2201 | /* it failed too... can't find root= */ |
2202 | return 0; |
2203 | } |
2204 | } |
2205 | } |
2206 | |
2207 | dev = getpathbyspec(dev); |
2208 | if (!getpathbyspec(dev)) { |
2209 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", |
2210 | dev); |
2211 | return 0; |
2212 | } else |
2213 | dev = getpathbyspec(dev); |
2214 | |
2215 | rootdev = findDiskForRoot(); |
2216 | if (!rootdev) { |
2217 | notSuitablePrintf(entry, 0, "can't find root device\n"); |
2218 | return 0; |
2219 | } |
2220 | |
2221 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
2222 | notSuitablePrintf(entry, 0, |
2223 | "uuid missing: rootdev %s, dev %s\n", |
2224 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2225 | free(rootdev); |
2226 | return 0; |
2227 | } |
2228 | |
2229 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
2230 | notSuitablePrintf(entry, 0, |
2231 | "uuid mismatch: rootdev %s, dev %s\n", |
2232 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2233 | free(rootdev); |
2234 | return 0; |
2235 | } |
2236 | |
2237 | free(rootdev); |
2238 | notSuitablePrintf(entry, 1, "\n"); |
2239 | |
2240 | return 1; |
2241 | } |
2242 | |
2243 | /* returns the first match on or after the one pointed to by index (if index |
2244 | is not NULL) which is not marked as skip */ |
2245 | struct singleEntry *findEntryByPath(struct grubConfig *config, |
2246 | const char *kernel, const char *prefix, |
2247 | int *index) |
2248 | { |
2249 | struct singleEntry *entry = NULL; |
2250 | struct singleLine *line; |
2251 | int i; |
2252 | char *chptr; |
2253 | char *rootspec = NULL; |
2254 | enum lineType_e checkType = LT_KERNEL; |
2255 | |
2256 | if (isdigit(*kernel)) { |
2257 | int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); |
2258 | |
2259 | i = 0; |
2260 | indexVars[i] = strtol(kernel, &chptr, 10); |
2261 | while (*chptr == ',') { |
2262 | i++; |
2263 | kernel = chptr + 1; |
2264 | indexVars[i] = strtol(kernel, &chptr, 10); |
2265 | } |
2266 | |
2267 | if (*chptr) { |
2268 | /* can't parse it, bail */ |
2269 | return NULL; |
2270 | } |
2271 | |
2272 | indexVars[i + 1] = -1; |
2273 | |
2274 | i = 0; |
2275 | if (index) { |
2276 | while (i < *index) { |
2277 | i++; |
2278 | if (indexVars[i] == -1) |
2279 | return NULL; |
2280 | } |
2281 | } |
2282 | |
2283 | entry = findEntryByIndex(config, indexVars[i]); |
2284 | if (!entry) |
2285 | return NULL; |
2286 | |
2287 | line = |
2288 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
2289 | LT_KERNEL_16, entry->lines); |
2290 | if (!line) |
2291 | return NULL; |
2292 | |
2293 | if (index) |
2294 | *index = indexVars[i]; |
2295 | return entry; |
2296 | } |
2297 | |
2298 | if (!strcmp(kernel, "DEFAULT")) { |
2299 | if (index && *index > config->defaultImage) { |
2300 | entry = NULL; |
2301 | } else { |
2302 | entry = findEntryByIndex(config, config->defaultImage); |
2303 | if (entry && entry->skip) |
2304 | entry = NULL; |
2305 | else if (index) |
2306 | *index = config->defaultImage; |
2307 | } |
2308 | } else if (!strcmp(kernel, "ALL")) { |
2309 | if (index) |
2310 | i = *index; |
2311 | else |
2312 | i = 0; |
2313 | |
2314 | while ((entry = findEntryByIndex(config, i))) { |
2315 | if (!entry->skip) |
2316 | break; |
2317 | i++; |
2318 | } |
2319 | |
2320 | if (entry && index) |
2321 | *index = i; |
2322 | } else { |
2323 | if (index) |
2324 | i = *index; |
2325 | else |
2326 | i = 0; |
2327 | |
2328 | if (!strncmp(kernel, "TITLE=", 6)) { |
2329 | prefix = ""; |
2330 | checkType = LT_TITLE | LT_MENUENTRY; |
2331 | kernel += 6; |
2332 | } |
2333 | |
2334 | for (entry = findEntryByIndex(config, i); entry; |
2335 | entry = entry->next, i++) { |
2336 | if (entry->skip) |
2337 | continue; |
2338 | |
2339 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", |
2340 | checkType, kernel, entry); |
2341 | |
2342 | /* check all the lines matching checkType */ |
2343 | for (line = entry->lines; line; line = line->next) { |
2344 | enum lineType_e ct = checkType; |
2345 | if (entry->multiboot && checkType == LT_KERNEL) |
2346 | ct = LT_KERNEL | LT_KERNEL_EFI | |
2347 | LT_MBMODULE | LT_HYPER | |
2348 | LT_KERNEL_16; |
2349 | else if (checkType & LT_KERNEL) |
2350 | ct = checkType | LT_KERNEL_EFI | |
2351 | LT_KERNEL_16; |
2352 | line = getLineByType(ct, line); |
2353 | if (!line) |
2354 | break; /* not found in this entry */ |
2355 | |
2356 | if (line && line->type != LT_MENUENTRY && |
2357 | line->numElements >= 2) { |
2358 | rootspec = |
2359 | getRootSpecifier(line->elements[1]. |
2360 | item); |
2361 | if (!strcmp |
2362 | (line->elements[1].item + |
2363 | ((rootspec != |
2364 | NULL) ? strlen(rootspec) : 0), |
2365 | kernel + strlen(prefix))) |
2366 | break; |
2367 | } |
2368 | if (line->type == LT_MENUENTRY && |
2369 | !strcmp(line->elements[1].item, kernel)) |
2370 | break; |
2371 | } |
2372 | |
2373 | /* make sure this entry has a kernel identifier; this skips |
2374 | * non-Linux boot entries (could find netbsd etc, though, which is |
2375 | * unfortunate) |
2376 | */ |
2377 | if (line |
2378 | && getLineByType(LT_KERNEL | LT_HYPER | |
2379 | LT_KERNEL_EFI | LT_KERNEL_16, |
2380 | entry->lines)) |
2381 | break; /* found 'im! */ |
2382 | } |
2383 | |
2384 | if (index) |
2385 | *index = i; |
2386 | } |
2387 | |
2388 | return entry; |
2389 | } |
2390 | |
2391 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
2392 | int *index) |
2393 | { |
2394 | struct singleEntry *entry; |
2395 | struct singleLine *line; |
2396 | int i; |
2397 | char *newtitle; |
2398 | |
2399 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { |
2400 | if (index && i < *index) |
2401 | continue; |
2402 | line = getLineByType(LT_TITLE, entry->lines); |
2403 | if (!line) |
2404 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2405 | if (!line) |
2406 | continue; |
2407 | newtitle = grub2ExtractTitle(line); |
2408 | if (!newtitle) |
2409 | continue; |
2410 | if (!strcmp(title, newtitle)) |
2411 | break; |
2412 | } |
2413 | |
2414 | if (!entry) |
2415 | return NULL; |
2416 | |
2417 | if (index) |
2418 | *index = i; |
2419 | return entry; |
2420 | } |
2421 | |
2422 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index) |
2423 | { |
2424 | struct singleEntry *entry; |
2425 | |
2426 | entry = cfg->entries; |
2427 | while (index && entry) { |
2428 | entry = entry->next; |
2429 | index--; |
2430 | } |
2431 | |
2432 | return entry; |
2433 | } |
2434 | |
2435 | /* Find a good template to use for the new kernel. An entry is |
2436 | * good if the kernel and mkinitrd exist (even if the entry |
2437 | * is going to be removed). Try and use the default entry, but |
2438 | * if that doesn't work just take the first. If we can't find one, |
2439 | * bail. */ |
2440 | struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix, |
2441 | int *indexPtr, int skipRemoved, int flags) |
2442 | { |
2443 | struct singleEntry *entry, *entry2; |
2444 | int index; |
2445 | |
2446 | if (cfg->cfi->defaultIsSaved) { |
2447 | if (cfg->cfi->getEnv) { |
2448 | char *defTitle = |
2449 | cfg->cfi->getEnv(cfg->cfi, "saved_entry"); |
2450 | if (defTitle) { |
2451 | int index = 0; |
2452 | if (isnumber(defTitle)) { |
2453 | index = atoi(defTitle); |
2454 | entry = findEntryByIndex(cfg, index); |
2455 | } else { |
2456 | entry = |
2457 | findEntryByTitle(cfg, defTitle, |
2458 | &index); |
2459 | } |
2460 | if (entry |
2461 | && suitableImage(entry, prefix, skipRemoved, |
2462 | flags)) { |
2463 | cfg->defaultImage = index; |
2464 | if (indexPtr) |
2465 | *indexPtr = index; |
2466 | return entry; |
2467 | } |
2468 | } |
2469 | } |
2470 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
2471 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2472 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { |
2473 | if (indexPtr) |
2474 | *indexPtr = cfg->defaultImage; |
2475 | return entry; |
2476 | } |
2477 | } |
2478 | |
2479 | index = 0; |
2480 | while ((entry = findEntryByIndex(cfg, index))) { |
2481 | if (suitableImage(entry, prefix, skipRemoved, flags)) { |
2482 | int j, unmodifiedIndex; |
2483 | |
2484 | unmodifiedIndex = index; |
2485 | |
2486 | for (j = 0; j < unmodifiedIndex; j++) { |
2487 | entry2 = findEntryByIndex(cfg, j); |
2488 | if (entry2->skip) |
2489 | index--; |
2490 | } |
2491 | if (indexPtr) |
2492 | *indexPtr = index; |
2493 | |
2494 | return entry; |
2495 | } |
2496 | |
2497 | index++; |
2498 | } |
2499 | |
2500 | fprintf(stderr, |
2501 | _("grubby fatal error: unable to find a suitable template\n")); |
2502 | |
2503 | return NULL; |
2504 | } |
2505 | |
2506 | char *findBootPrefix(void) |
2507 | { |
2508 | struct stat sb, sb2; |
2509 | |
2510 | stat("/", &sb); |
2511 | #ifdef __ia64__ |
2512 | stat("/boot/efi/EFI/redhat/", &sb2); |
2513 | #else |
2514 | stat("/boot", &sb2); |
2515 | #endif |
2516 | |
2517 | if (sb.st_dev == sb2.st_dev) |
2518 | return strdup(""); |
2519 | |
2520 | #ifdef __ia64__ |
2521 | return strdup("/boot/efi/EFI/redhat/"); |
2522 | #else |
2523 | return strdup("/boot"); |
2524 | #endif |
2525 | } |
2526 | |
2527 | void markRemovedImage(struct grubConfig *cfg, const char *image, |
2528 | const char *prefix) |
2529 | { |
2530 | struct singleEntry *entry; |
2531 | |
2532 | if (!image) |
2533 | return; |
2534 | |
2535 | /* check and see if we're removing the default image */ |
2536 | if (isdigit(*image)) { |
2537 | entry = findEntryByPath(cfg, image, prefix, NULL); |
2538 | if (entry) |
2539 | entry->skip = 1; |
2540 | return; |
2541 | } |
2542 | |
2543 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2544 | entry->skip = 1; |
2545 | } |
2546 | |
2547 | void setDefaultImage(struct grubConfig *config, int isAddingBootEntry, |
2548 | const char *defaultKernelPath, int newBootEntryIsDefault, |
2549 | const char *prefix, int flags, |
2550 | int newDefaultBootEntryIndex, int newBootEntryIndex) |
2551 | { |
2552 | struct singleEntry *bootEntry, *newDefault; |
2553 | int indexToVerify, firstKernelEntryIndex, currentLookupIndex; |
2554 | |
2555 | /* initialize */ |
2556 | currentLookupIndex = FIRST_ENTRY_INDEX; |
2557 | |
2558 | /* handle the two cases where the user explictly picks the default |
2559 | * boot entry index as it would exist post-modification */ |
2560 | |
2561 | /* Case 1: user chose to make the latest boot entry the default */ |
2562 | if (newBootEntryIsDefault) { |
2563 | config->defaultImage = newBootEntryIndex; |
2564 | return; |
2565 | } |
2566 | |
2567 | /* Case 2: user picked an arbitrary index as the default boot entry */ |
2568 | if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) { |
2569 | indexToVerify = newDefaultBootEntryIndex; |
2570 | |
2571 | /* user chose to make latest boot entry the default */ |
2572 | if (newDefaultBootEntryIndex == newBootEntryIndex) { |
2573 | config->defaultImage = newBootEntryIndex; |
2574 | return; |
2575 | } |
2576 | |
2577 | /* the user picks the default index based on the |
2578 | * order of the bootloader configuration after |
2579 | * modification; ensure we are checking for the |
2580 | * existence of the correct entry */ |
2581 | if (newBootEntryIndex < newDefaultBootEntryIndex) { |
2582 | if (!config->isModified) |
2583 | indexToVerify--; |
2584 | } |
2585 | |
2586 | /* verify the user selected index will exist */ |
2587 | if (findEntryByIndex(config, indexToVerify)) { |
2588 | config->defaultImage = newDefaultBootEntryIndex; |
2589 | } else { |
2590 | config->defaultImage = NO_DEFAULT_ENTRY; |
2591 | } |
2592 | |
2593 | return; |
2594 | } |
2595 | |
2596 | /* handle cases where the index value may shift */ |
2597 | |
2598 | /* check validity of existing default or first-entry-found |
2599 | selection */ |
2600 | if (defaultKernelPath) { |
2601 | /* we must initialize this */ |
2602 | firstKernelEntryIndex = 0; |
2603 | /* user requested first-entry-found */ |
2604 | if (!findEntryByPath(config, defaultKernelPath, |
2605 | prefix, &firstKernelEntryIndex)) { |
2606 | /* don't change default if can't find match */ |
2607 | config->defaultImage = NO_DEFAULT_ENTRY; |
2608 | return; |
2609 | } |
2610 | |
2611 | config->defaultImage = firstKernelEntryIndex; |
2612 | |
2613 | /* this is where we start looking for decrement later */ |
2614 | currentLookupIndex = config->defaultImage; |
2615 | |
2616 | if (isAddingBootEntry && !config->isModified && |
2617 | (newBootEntryIndex < config->defaultImage)) { |
2618 | /* increment because new entry added before default */ |
2619 | config->defaultImage++; |
2620 | } |
2621 | } else { |
2622 | /* check to see if the default is stored in the environment */ |
2623 | if (config->defaultImage < FIRST_ENTRY_INDEX) { |
2624 | if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2) |
2625 | { |
2626 | if (config->cfi->defaultIsSaved) { |
2627 | if (config->cfi->getEnv) { |
2628 | char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry"); |
2629 | |
2630 | if (defaultTitle) { |
2631 | if (isnumber(defaultTitle)) { |
2632 | currentLookupIndex = atoi(defaultTitle); |
2633 | } else { |
2634 | findEntryByTitle(config, defaultTitle, ¤tLookupIndex); |
2635 | } |
2636 | /* set the default Image to an actual index */ |
2637 | config->defaultImage = currentLookupIndex; |
2638 | } |
2639 | } |
2640 | } |
2641 | } |
2642 | } else { |
2643 | /* use pre-existing default entry from the file*/ |
2644 | currentLookupIndex = config->defaultImage; |
2645 | } |
2646 | |
2647 | if (isAddingBootEntry |
2648 | && (newBootEntryIndex <= config->defaultImage)) { |
2649 | config->defaultImage++; |
2650 | |
2651 | if (config->isModified) { |
2652 | currentLookupIndex++; |
2653 | } |
2654 | } |
2655 | } |
2656 | |
2657 | /* sanity check - is this entry index valid? */ |
2658 | bootEntry = findEntryByIndex(config, currentLookupIndex); |
2659 | |
2660 | if ((bootEntry && bootEntry->skip) || !bootEntry) { |
2661 | /* entry is to be skipped or is invalid */ |
2662 | if (isAddingBootEntry) { |
2663 | config->defaultImage = newBootEntryIndex; |
2664 | return; |
2665 | } |
2666 | newDefault = |
2667 | findTemplate(config, prefix, &config->defaultImage, 1, |
2668 | flags); |
2669 | if (!newDefault) { |
2670 | config->defaultImage = NO_DEFAULT_ENTRY; |
2671 | } |
2672 | |
2673 | return; |
2674 | } |
2675 | |
2676 | currentLookupIndex--; |
2677 | |
2678 | /* decrement index by the total number of entries deleted */ |
2679 | |
2680 | for (indexToVerify = currentLookupIndex; |
2681 | indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) { |
2682 | |
2683 | bootEntry = findEntryByIndex(config, indexToVerify); |
2684 | |
2685 | if (bootEntry && bootEntry->skip) { |
2686 | config->defaultImage--; |
2687 | } |
2688 | } |
2689 | } |
2690 | |
2691 | void setFallbackImage(struct grubConfig *config, int hasNew) |
2692 | { |
2693 | struct singleEntry *entry, *entry2; |
2694 | int j; |
2695 | |
2696 | if (config->fallbackImage == -1) |
2697 | return; |
2698 | |
2699 | entry = findEntryByIndex(config, config->fallbackImage); |
2700 | if (!entry || entry->skip) { |
2701 | config->fallbackImage = -1; |
2702 | return; |
2703 | } |
2704 | |
2705 | if (hasNew) |
2706 | config->fallbackImage++; |
2707 | |
2708 | /* count the number of entries erased before this one */ |
2709 | for (j = 0; j < config->fallbackImage; j++) { |
2710 | entry2 = findEntryByIndex(config, j); |
2711 | if (entry2->skip) |
2712 | config->fallbackImage--; |
2713 | } |
2714 | } |
2715 | |
2716 | void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index) |
2717 | { |
2718 | struct singleLine *line; |
2719 | char *root = NULL; |
2720 | int i; |
2721 | int j; |
2722 | |
2723 | printf("index=%d\n", index); |
2724 | |
2725 | line = |
2726 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2727 | entry->lines); |
2728 | if (!line) { |
2729 | printf("non linux entry\n"); |
2730 | return; |
2731 | } |
2732 | |
2733 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2734 | printf("kernel=%s\n", line->elements[1].item); |
2735 | else |
2736 | printf("kernel=%s%s\n", prefix, line->elements[1].item); |
2737 | |
2738 | if (line->numElements >= 3) { |
2739 | printf("args=\""); |
2740 | i = 2; |
2741 | while (i < line->numElements) { |
2742 | if (!strncmp(line->elements[i].item, "root=", 5)) { |
2743 | root = line->elements[i].item + 5; |
2744 | } else { |
2745 | printf("%s%s", line->elements[i].item, |
2746 | line->elements[i].indent); |
2747 | } |
2748 | |
2749 | i++; |
2750 | } |
2751 | printf("\"\n"); |
2752 | } else { |
2753 | line = getLineByType(LT_KERNELARGS, entry->lines); |
2754 | if (line) { |
2755 | char *s; |
2756 | |
2757 | printf("args=\""); |
2758 | i = 1; |
2759 | while (i < line->numElements) { |
2760 | if (!strncmp |
2761 | (line->elements[i].item, "root=", 5)) { |
2762 | root = line->elements[i].item + 5; |
2763 | } else { |
2764 | s = line->elements[i].item; |
2765 | |
2766 | printf("%s%s", s, |
2767 | line->elements[i].indent); |
2768 | } |
2769 | |
2770 | i++; |
2771 | } |
2772 | |
2773 | s = line->elements[i - 1].indent; |
2774 | printf("\"\n"); |
2775 | } |
2776 | } |
2777 | |
2778 | if (!root) { |
2779 | line = getLineByType(LT_ROOT, entry->lines); |
2780 | if (line && line->numElements >= 2) |
2781 | root = line->elements[1].item; |
2782 | } |
2783 | |
2784 | if (root) { |
2785 | char *s = alloca(strlen(root) + 1); |
2786 | |
2787 | strcpy(s, root); |
2788 | if (s[strlen(s) - 1] == '"') |
2789 | s[strlen(s) - 1] = '\0'; |
2790 | /* make sure the root doesn't have a trailing " */ |
2791 | printf("root=%s\n", s); |
2792 | } |
2793 | |
2794 | line = |
2795 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
2796 | entry->lines); |
2797 | |
2798 | if (line && line->numElements >= 2) { |
2799 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2800 | printf("initrd="); |
2801 | else |
2802 | printf("initrd=%s", prefix); |
2803 | |
2804 | for (i = 1; i < line->numElements; i++) |
2805 | printf("%s%s", line->elements[i].item, |
2806 | line->elements[i].indent); |
2807 | printf("\n"); |
2808 | } |
2809 | |
2810 | line = getLineByType(LT_TITLE, entry->lines); |
2811 | if (line) { |
2812 | char *entryTitle; |
2813 | /* if we can extractTitle, then it's a zipl config and |
2814 | * if not then we go ahead with what's existed prior */ |
2815 | entryTitle = extractTitle(config, line); |
2816 | if (!entryTitle) { |
2817 | entryTitle=line->elements[1].item; |
2818 | } |
2819 | printf("title=%s\n", entryTitle); |
2820 | } else { |
2821 | char *title; |
2822 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2823 | if (line) { |
2824 | title = grub2ExtractTitle(line); |
2825 | if (title) |
2826 | printf("title=%s\n", title); |
2827 | } |
2828 | } |
2829 | |
2830 | for (j = 0, line = entry->lines; line; line = line->next) { |
2831 | if ((line->type & LT_MBMODULE) && line->numElements >= 2) { |
2832 | if (!strncmp |
2833 | (prefix, line->elements[1].item, strlen(prefix))) |
2834 | printf("mbmodule%d=", j); |
2835 | else |
2836 | printf("mbmodule%d=%s", j, prefix); |
2837 | |
2838 | for (i = 1; i < line->numElements; i++) |
2839 | printf("%s%s", line->elements[i].item, |
2840 | line->elements[i].indent); |
2841 | printf("\n"); |
2842 | j++; |
2843 | } |
2844 | } |
2845 | } |
2846 | |
2847 | int isSuseSystem(void) |
2848 | { |
2849 | const char *path; |
2850 | const static char default_path[] = "/etc/SuSE-release"; |
2851 | |
2852 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) |
2853 | path = default_path; |
2854 | |
2855 | if (!access(path, R_OK)) |
2856 | return 1; |
2857 | return 0; |
2858 | } |
2859 | |
2860 | int isSuseGrubConf(const char *path) |
2861 | { |
2862 | FILE *grubConf; |
2863 | char *line = NULL; |
2864 | size_t len = 0, res = 0; |
2865 | |
2866 | grubConf = fopen(path, "r"); |
2867 | if (!grubConf) { |
2868 | dbgPrintf("Could not open SuSE configuration file '%s'\n", |
2869 | path); |
2870 | return 0; |
2871 | } |
2872 | |
2873 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2874 | if (!strncmp(line, "setup", 5)) { |
2875 | fclose(grubConf); |
2876 | free(line); |
2877 | return 1; |
2878 | } |
2879 | } |
2880 | |
2881 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", |
2882 | path); |
2883 | |
2884 | fclose(grubConf); |
2885 | free(line); |
2886 | return 0; |
2887 | } |
2888 | |
2889 | int suseGrubConfGetLba(const char *path, int *lbaPtr) |
2890 | { |
2891 | FILE *grubConf; |
2892 | char *line = NULL; |
2893 | size_t res = 0, len = 0; |
2894 | |
2895 | if (!path) |
2896 | return 1; |
2897 | if (!lbaPtr) |
2898 | return 1; |
2899 | |
2900 | grubConf = fopen(path, "r"); |
2901 | if (!grubConf) |
2902 | return 1; |
2903 | |
2904 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2905 | if (line[res - 1] == '\n') |
2906 | line[res - 1] = '\0'; |
2907 | else if (len > res) |
2908 | line[res] = '\0'; |
2909 | else { |
2910 | line = realloc(line, res + 1); |
2911 | line[res] = '\0'; |
2912 | } |
2913 | |
2914 | if (!strncmp(line, "setup", 5)) { |
2915 | if (strstr(line, "--force-lba")) { |
2916 | *lbaPtr = 1; |
2917 | } else { |
2918 | *lbaPtr = 0; |
2919 | } |
2920 | dbgPrintf("lba: %i\n", *lbaPtr); |
2921 | break; |
2922 | } |
2923 | } |
2924 | |
2925 | free(line); |
2926 | fclose(grubConf); |
2927 | return 0; |
2928 | } |
2929 | |
2930 | int suseGrubConfGetInstallDevice(const char *path, char **devicePtr) |
2931 | { |
2932 | FILE *grubConf; |
2933 | char *line = NULL; |
2934 | size_t res = 0, len = 0; |
2935 | char *lastParamPtr = NULL; |
2936 | char *secLastParamPtr = NULL; |
2937 | char installDeviceNumber = '\0'; |
2938 | char *bounds = NULL; |
2939 | |
2940 | if (!path) |
2941 | return 1; |
2942 | if (!devicePtr) |
2943 | return 1; |
2944 | |
2945 | grubConf = fopen(path, "r"); |
2946 | if (!grubConf) |
2947 | return 1; |
2948 | |
2949 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2950 | if (strncmp(line, "setup", 5)) |
2951 | continue; |
2952 | |
2953 | if (line[res - 1] == '\n') |
2954 | line[res - 1] = '\0'; |
2955 | else if (len > res) |
2956 | line[res] = '\0'; |
2957 | else { |
2958 | line = realloc(line, res + 1); |
2959 | line[res] = '\0'; |
2960 | } |
2961 | |
2962 | lastParamPtr = bounds = line + res; |
2963 | |
2964 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ |
2965 | while (!isspace(*lastParamPtr)) |
2966 | lastParamPtr--; |
2967 | lastParamPtr++; |
2968 | |
2969 | secLastParamPtr = lastParamPtr - 2; |
2970 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); |
2971 | |
2972 | if (lastParamPtr + 3 > bounds) { |
2973 | dbgPrintf("lastParamPtr going over boundary"); |
2974 | fclose(grubConf); |
2975 | free(line); |
2976 | return 1; |
2977 | } |
2978 | if (!strncmp(lastParamPtr, "(hd", 3)) |
2979 | lastParamPtr += 3; |
2980 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); |
2981 | |
2982 | /* |
2983 | * Second last parameter will decide wether last parameter is |
2984 | * an IMAGE_DEVICE or INSTALL_DEVICE |
2985 | */ |
2986 | while (!isspace(*secLastParamPtr)) |
2987 | secLastParamPtr--; |
2988 | secLastParamPtr++; |
2989 | |
2990 | if (secLastParamPtr + 3 > bounds) { |
2991 | dbgPrintf("secLastParamPtr going over boundary"); |
2992 | fclose(grubConf); |
2993 | free(line); |
2994 | return 1; |
2995 | } |
2996 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); |
2997 | if (!strncmp(secLastParamPtr, "(hd", 3)) { |
2998 | secLastParamPtr += 3; |
2999 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); |
3000 | installDeviceNumber = *secLastParamPtr; |
3001 | } else { |
3002 | installDeviceNumber = *lastParamPtr; |
3003 | } |
3004 | |
3005 | *devicePtr = malloc(6); |
3006 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); |
3007 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); |
3008 | fclose(grubConf); |
3009 | free(line); |
3010 | return 0; |
3011 | } |
3012 | |
3013 | free(line); |
3014 | fclose(grubConf); |
3015 | return 1; |
3016 | } |
3017 | |
3018 | int grubGetBootFromDeviceMap(const char *device, char **bootPtr) |
3019 | { |
3020 | FILE *deviceMap; |
3021 | char *line = NULL; |
3022 | size_t res = 0, len = 0; |
3023 | char *devicePtr; |
3024 | char *bounds = NULL; |
3025 | const char *path; |
3026 | const static char default_path[] = "/boot/grub/device.map"; |
3027 | |
3028 | if (!device) |
3029 | return 1; |
3030 | if (!bootPtr) |
3031 | return 1; |
3032 | |
3033 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) |
3034 | path = default_path; |
3035 | |
3036 | dbgPrintf("opening grub device.map file from: %s\n", path); |
3037 | deviceMap = fopen(path, "r"); |
3038 | if (!deviceMap) |
3039 | return 1; |
3040 | |
3041 | while ((res = getline(&line, &len, deviceMap)) != -1) { |
3042 | if (!strncmp(line, "#", 1)) |
3043 | continue; |
3044 | |
3045 | if (line[res - 1] == '\n') |
3046 | line[res - 1] = '\0'; |
3047 | else if (len > res) |
3048 | line[res] = '\0'; |
3049 | else { |
3050 | line = realloc(line, res + 1); |
3051 | line[res] = '\0'; |
3052 | } |
3053 | |
3054 | devicePtr = line; |
3055 | bounds = line + res; |
3056 | |
3057 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) |
3058 | devicePtr++; |
3059 | dbgPrintf("device: %s\n", devicePtr); |
3060 | |
3061 | if (!strncmp(devicePtr, device, strlen(device))) { |
3062 | devicePtr += strlen(device); |
3063 | while (isspace(*devicePtr) |
3064 | && ((devicePtr + 1) <= bounds)) |
3065 | devicePtr++; |
3066 | |
3067 | *bootPtr = strdup(devicePtr); |
3068 | break; |
3069 | } |
3070 | } |
3071 | |
3072 | free(line); |
3073 | fclose(deviceMap); |
3074 | return 0; |
3075 | } |
3076 | |
3077 | int suseGrubConfGetBoot(const char *path, char **bootPtr) |
3078 | { |
3079 | char *grubDevice; |
3080 | |
3081 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) |
3082 | dbgPrintf("error looking for grub installation device\n"); |
3083 | else |
3084 | dbgPrintf("grubby installation device: %s\n", grubDevice); |
3085 | |
3086 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) |
3087 | dbgPrintf("error looking for grub boot device\n"); |
3088 | else |
3089 | dbgPrintf("grubby boot device: %s\n", *bootPtr); |
3090 | |
3091 | free(grubDevice); |
3092 | return 0; |
3093 | } |
3094 | |
3095 | int parseSuseGrubConf(int *lbaPtr, char **bootPtr) |
3096 | { |
3097 | /* |
3098 | * This SuSE grub configuration file at this location is not your |
3099 | * average grub configuration file, but instead the grub commands |
3100 | * used to setup grub on that system. |
3101 | */ |
3102 | const char *path; |
3103 | const static char default_path[] = "/etc/grub.conf"; |
3104 | |
3105 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) |
3106 | path = default_path; |
3107 | |
3108 | if (!isSuseGrubConf(path)) |
3109 | return 1; |
3110 | |
3111 | if (lbaPtr) { |
3112 | *lbaPtr = 0; |
3113 | if (suseGrubConfGetLba(path, lbaPtr)) |
3114 | return 1; |
3115 | } |
3116 | |
3117 | if (bootPtr) { |
3118 | *bootPtr = NULL; |
3119 | suseGrubConfGetBoot(path, bootPtr); |
3120 | } |
3121 | |
3122 | return 0; |
3123 | } |
3124 | |
3125 | int parseSysconfigGrub(int *lbaPtr, char **bootPtr) |
3126 | { |
3127 | FILE *in; |
3128 | char buf[1024]; |
3129 | char *chptr; |
3130 | char *start; |
3131 | char *param; |
3132 | |
3133 | in = fopen("/etc/sysconfig/grub", "r"); |
3134 | if (!in) |
3135 | return 1; |
3136 | |
3137 | if (lbaPtr) |
3138 | *lbaPtr = 0; |
3139 | if (bootPtr) |
3140 | *bootPtr = NULL; |
3141 | |
3142 | while (fgets(buf, sizeof(buf), in)) { |
3143 | start = buf; |
3144 | while (isspace(*start)) |
3145 | start++; |
3146 | if (*start == '#') |
3147 | continue; |
3148 | |
3149 | chptr = strchr(start, '='); |
3150 | if (!chptr) |
3151 | continue; |
3152 | chptr--; |
3153 | while (*chptr && isspace(*chptr)) |
3154 | chptr--; |
3155 | chptr++; |
3156 | *chptr = '\0'; |
3157 | |
3158 | param = chptr + 1; |
3159 | while (*param && isspace(*param)) |
3160 | param++; |
3161 | if (*param == '=') { |
3162 | param++; |
3163 | while (*param && isspace(*param)) |
3164 | param++; |
3165 | } |
3166 | |
3167 | chptr = param; |
3168 | while (*chptr && !isspace(*chptr)) |
3169 | chptr++; |
3170 | *chptr = '\0'; |
3171 | |
3172 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) |
3173 | *lbaPtr = 1; |
3174 | else if (!strcmp(start, "boot") && bootPtr) |
3175 | *bootPtr = strdup(param); |
3176 | } |
3177 | |
3178 | fclose(in); |
3179 | |
3180 | return 0; |
3181 | } |
3182 | |
3183 | void dumpSysconfigGrub(void) |
3184 | { |
3185 | char *boot = NULL; |
3186 | int lba; |
3187 | |
3188 | if (isSuseSystem()) { |
3189 | if (parseSuseGrubConf(&lba, &boot)) { |
3190 | free(boot); |
3191 | return; |
3192 | } |
3193 | } else { |
3194 | if (parseSysconfigGrub(&lba, &boot)) { |
3195 | free(boot); |
3196 | return; |
3197 | } |
3198 | } |
3199 | |
3200 | if (lba) |
3201 | printf("lba\n"); |
3202 | if (boot) { |
3203 | printf("boot=%s\n", boot); |
3204 | free(boot); |
3205 | } |
3206 | } |
3207 | |
3208 | int displayInfo(struct grubConfig *config, char *kernel, const char *prefix) |
3209 | { |
3210 | int i = 0; |
3211 | struct singleEntry *entry; |
3212 | struct singleLine *line; |
3213 | |
3214 | entry = findEntryByPath(config, kernel, prefix, &i); |
3215 | if (!entry) { |
3216 | fprintf(stderr, _("grubby: kernel not found\n")); |
3217 | return 1; |
3218 | } |
3219 | |
3220 | /* this is a horrible hack to support /etc/sysconfig/grub; there must |
3221 | be a better way */ |
3222 | if (config->cfi == &grubConfigType) { |
3223 | dumpSysconfigGrub(); |
3224 | } else { |
3225 | line = getLineByType(LT_BOOT, config->theLines); |
3226 | if (line && line->numElements >= 1) { |
3227 | printf("boot=%s\n", line->elements[1].item); |
3228 | } |
3229 | |
3230 | line = getLineByType(LT_LBA, config->theLines); |
3231 | if (line) |
3232 | printf("lba\n"); |
3233 | } |
3234 | |
3235 | displayEntry(config, entry, prefix, i); |
3236 | |
3237 | i++; |
3238 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { |
3239 | displayEntry(config, entry, prefix, i); |
3240 | i++; |
3241 | } |
3242 | |
3243 | return 0; |
3244 | } |
3245 | |
3246 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
3247 | struct singleLine *tmplLine, |
3248 | struct singleLine *prevLine, |
3249 | const char *val, struct configFileInfo *cfi) |
3250 | { |
3251 | struct singleLine *newLine = lineDup(tmplLine); |
3252 | |
3253 | if (isEfi && cfi == &grub2ConfigType) { |
3254 | enum lineType_e old = newLine->type; |
3255 | newLine->type = preferredLineType(newLine->type, cfi); |
3256 | if (old != newLine->type) |
3257 | newLine->elements[0].item = |
3258 | getKeyByType(newLine->type, cfi); |
3259 | } |
3260 | |
3261 | if (val) { |
3262 | /* override the inherited value with our own. |
3263 | * This is a little weak because it only applies to elements[1] |
3264 | */ |
3265 | if (newLine->numElements > 1) |
3266 | removeElement(newLine, 1); |
3267 | insertElement(newLine, val, 1, cfi); |
3268 | |
3269 | /* but try to keep the rootspec from the template... sigh */ |
3270 | if (tmplLine-> |
3271 | type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD | |
3272 | LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 | |
3273 | LT_INITRD_16)) { |
3274 | char *rootspec = |
3275 | getRootSpecifier(tmplLine->elements[1].item); |
3276 | if (rootspec != NULL) { |
3277 | free(newLine->elements[1].item); |
3278 | newLine->elements[1].item = |
3279 | sdupprintf("%s%s", rootspec, val); |
3280 | } |
3281 | } |
3282 | } |
3283 | |
3284 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? |
3285 | newLine->elements[0].item : ""); |
3286 | |
3287 | if (!entry->lines) { |
3288 | /* first one on the list */ |
3289 | entry->lines = newLine; |
3290 | } else if (prevLine) { |
3291 | /* add after prevLine */ |
3292 | newLine->next = prevLine->next; |
3293 | prevLine->next = newLine; |
3294 | } |
3295 | |
3296 | return newLine; |
3297 | } |
3298 | |
3299 | /* val may be NULL */ |
3300 | struct singleLine *addLine(struct singleEntry *entry, |
3301 | struct configFileInfo *cfi, |
3302 | enum lineType_e type, char *defaultIndent, |
3303 | const char *val) |
3304 | { |
3305 | struct singleLine *line, *prev; |
3306 | struct keywordTypes *kw; |
3307 | struct singleLine tmpl; |
3308 | |
3309 | /* NB: This function shouldn't allocate items on the heap, rather on |
3310 | * the stack since it calls addLineTmpl which will make copies. |
3311 | */ |
3312 | if (type == LT_TITLE && cfi->titleBracketed) { |
3313 | /* we're doing a bracketed title (zipl) */ |
3314 | tmpl.type = type; |
3315 | tmpl.numElements = 1; |
3316 | tmpl.elements = alloca(sizeof(*tmpl.elements)); |
3317 | tmpl.elements[0].item = alloca(strlen(val) + 3); |
3318 | sprintf(tmpl.elements[0].item, "[%s]", val); |
3319 | tmpl.elements[0].indent = ""; |
3320 | val = NULL; |
3321 | } else if (type == LT_MENUENTRY) { |
3322 | char *lineend = "--class gnu-linux --class gnu --class os {"; |
3323 | if (!val) { |
3324 | fprintf(stderr, |
3325 | "Line type LT_MENUENTRY requires a value\n"); |
3326 | abort(); |
3327 | } |
3328 | kw = getKeywordByType(type, cfi); |
3329 | if (!kw) { |
3330 | fprintf(stderr, |
3331 | "Looking up keyword for unknown type %d\n", |
3332 | type); |
3333 | abort(); |
3334 | } |
3335 | tmpl.indent = ""; |
3336 | tmpl.type = type; |
3337 | tmpl.numElements = 3; |
3338 | tmpl.elements = |
3339 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3340 | tmpl.elements[0].item = kw->key; |
3341 | tmpl.elements[0].indent = alloca(2); |
3342 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3343 | tmpl.elements[1].item = (char *)val; |
3344 | tmpl.elements[1].indent = alloca(2); |
3345 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); |
3346 | tmpl.elements[2].item = alloca(strlen(lineend) + 1); |
3347 | strcpy(tmpl.elements[2].item, lineend); |
3348 | tmpl.elements[2].indent = ""; |
3349 | } else { |
3350 | kw = getKeywordByType(type, cfi); |
3351 | if (!kw) { |
3352 | fprintf(stderr, |
3353 | "Looking up keyword for unknown type %d\n", |
3354 | type); |
3355 | abort(); |
3356 | } |
3357 | tmpl.type = type; |
3358 | tmpl.numElements = val ? 2 : 1; |
3359 | tmpl.elements = |
3360 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3361 | tmpl.elements[0].item = kw->key; |
3362 | tmpl.elements[0].indent = alloca(2); |
3363 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3364 | if (val) { |
3365 | tmpl.elements[1].item = (char *)val; |
3366 | tmpl.elements[1].indent = ""; |
3367 | } |
3368 | } |
3369 | |
3370 | /* The last non-empty line gives us the indention to us and the line |
3371 | * to insert after. Note that comments are considered empty lines, |
3372 | * which may not be ideal? If there are no lines or we are looking at |
3373 | * the first line, we use defaultIndent (the first line is normally |
3374 | * indented differently from the rest) */ |
3375 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
3376 | if (line->numElements) |
3377 | prev = line; |
3378 | /* fall back on the last line if prev isn't otherwise set */ |
3379 | if (!line->next && !prev) |
3380 | prev = line; |
3381 | } |
3382 | |
3383 | struct singleLine *menuEntry; |
3384 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); |
3385 | if (tmpl.type == LT_ENTRY_END) { |
3386 | if (menuEntry) |
3387 | tmpl.indent = menuEntry->indent; |
3388 | else |
3389 | tmpl.indent = defaultIndent ? : ""; |
3390 | } else if (tmpl.type != LT_MENUENTRY) { |
3391 | if (menuEntry) |
3392 | tmpl.indent = "\t"; |
3393 | else if (prev == entry->lines) |
3394 | tmpl.indent = defaultIndent ? : ""; |
3395 | else |
3396 | tmpl.indent = prev->indent; |
3397 | } |
3398 | |
3399 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
3400 | } |
3401 | |
3402 | void removeLine(struct singleEntry *entry, struct singleLine *line) |
3403 | { |
3404 | struct singleLine *prev; |
3405 | int i; |
3406 | |
3407 | for (i = 0; i < line->numElements; i++) { |
3408 | free(line->elements[i].item); |
3409 | free(line->elements[i].indent); |
3410 | } |
3411 | free(line->elements); |
3412 | free(line->indent); |
3413 | |
3414 | if (line == entry->lines) { |
3415 | entry->lines = line->next; |
3416 | } else { |
3417 | prev = entry->lines; |
3418 | while (prev->next != line) |
3419 | prev = prev->next; |
3420 | prev->next = line->next; |
3421 | } |
3422 | |
3423 | free(line); |
3424 | } |
3425 | |
3426 | static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi) |
3427 | { |
3428 | struct singleLine newLine = { |
3429 | .indent = tmplLine->indent, |
3430 | .type = tmplLine->type, |
3431 | .next = tmplLine->next, |
3432 | }; |
3433 | int firstQuotedItem = -1; |
3434 | int quoteLen = 0; |
3435 | int j; |
3436 | int element = 0; |
3437 | char *c; |
3438 | |
3439 | c = malloc(strlen(tmplLine->elements[0].item) + 1); |
3440 | strcpy(c, tmplLine->elements[0].item); |
3441 | insertElement(&newLine, c, element++, cfi); |
3442 | free(c); |
3443 | c = NULL; |
3444 | |
3445 | for (j = 1; j < tmplLine->numElements; j++) { |
3446 | if (firstQuotedItem == -1) { |
3447 | quoteLen += strlen(tmplLine->elements[j].item); |
3448 | |
3449 | if (isquote(tmplLine->elements[j].item[0])) { |
3450 | firstQuotedItem = j; |
3451 | quoteLen += |
3452 | strlen(tmplLine->elements[j].indent); |
3453 | } else { |
3454 | c = malloc(quoteLen + 1); |
3455 | strcpy(c, tmplLine->elements[j].item); |
3456 | insertElement(&newLine, c, element++, cfi); |
3457 | free(c); |
3458 | quoteLen = 0; |
3459 | } |
3460 | } else { |
3461 | int itemlen = strlen(tmplLine->elements[j].item); |
3462 | quoteLen += itemlen; |
3463 | quoteLen += strlen(tmplLine->elements[j].indent); |
3464 | |
3465 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { |
3466 | c = malloc(quoteLen + 1); |
3467 | c[0] = '\0'; |
3468 | for (int i = firstQuotedItem; i < j + 1; i++) { |
3469 | strcat(c, tmplLine->elements[i].item); |
3470 | strcat(c, tmplLine->elements[i].indent); |
3471 | } |
3472 | insertElement(&newLine, c, element++, cfi); |
3473 | free(c); |
3474 | |
3475 | firstQuotedItem = -1; |
3476 | quoteLen = 0; |
3477 | } |
3478 | } |
3479 | } |
3480 | while (tmplLine->numElements) |
3481 | removeElement(tmplLine, 0); |
3482 | if (tmplLine->elements) |
3483 | free(tmplLine->elements); |
3484 | |
3485 | tmplLine->numElements = newLine.numElements; |
3486 | tmplLine->elements = newLine.elements; |
3487 | } |
3488 | |
3489 | static void insertElement(struct singleLine *line, |
3490 | const char *item, int insertHere, |
3491 | struct configFileInfo *cfi) |
3492 | { |
3493 | struct keywordTypes *kw; |
3494 | char indent[2] = ""; |
3495 | |
3496 | /* sanity check */ |
3497 | if (insertHere > line->numElements) { |
3498 | dbgPrintf |
3499 | ("insertElement() adjusting insertHere from %d to %d\n", |
3500 | insertHere, line->numElements); |
3501 | insertHere = line->numElements; |
3502 | } |
3503 | |
3504 | line->elements = realloc(line->elements, (line->numElements + 1) * |
3505 | sizeof(*line->elements)); |
3506 | memmove(&line->elements[insertHere + 1], |
3507 | &line->elements[insertHere], |
3508 | (line->numElements - insertHere) * sizeof(*line->elements)); |
3509 | line->elements[insertHere].item = strdup(item); |
3510 | |
3511 | kw = getKeywordByType(line->type, cfi); |
3512 | |
3513 | if (line->numElements == 0) { |
3514 | indent[0] = '\0'; |
3515 | } else if (insertHere == 0) { |
3516 | indent[0] = kw->nextChar; |
3517 | } else if (kw->separatorChar != '\0') { |
3518 | indent[0] = kw->separatorChar; |
3519 | } else { |
3520 | indent[0] = ' '; |
3521 | } |
3522 | |
3523 | if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') { |
3524 | /* move the end-of-line forward */ |
3525 | line->elements[insertHere].indent = |
3526 | line->elements[insertHere - 1].indent; |
3527 | line->elements[insertHere - 1].indent = strdup(indent); |
3528 | } else { |
3529 | line->elements[insertHere].indent = strdup(indent); |
3530 | } |
3531 | |
3532 | line->numElements++; |
3533 | |
3534 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", |
3535 | line->elements[0].item, |
3536 | line->elements[insertHere].item, |
3537 | line->elements[insertHere].indent, insertHere); |
3538 | } |
3539 | |
3540 | static void removeElement(struct singleLine *line, int removeHere) |
3541 | { |
3542 | int i; |
3543 | |
3544 | /* sanity check */ |
3545 | if (removeHere >= line->numElements) |
3546 | return; |
3547 | |
3548 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, |
3549 | removeHere, line->elements[removeHere].item); |
3550 | |
3551 | free(line->elements[removeHere].item); |
3552 | |
3553 | if (removeHere > 1) { |
3554 | /* previous argument gets this argument's post-indentation */ |
3555 | free(line->elements[removeHere - 1].indent); |
3556 | line->elements[removeHere - 1].indent = |
3557 | line->elements[removeHere].indent; |
3558 | } else { |
3559 | free(line->elements[removeHere].indent); |
3560 | } |
3561 | |
3562 | /* now collapse the array, but don't bother to realloc smaller */ |
3563 | for (i = removeHere; i < line->numElements - 1; i++) |
3564 | line->elements[i] = line->elements[i + 1]; |
3565 | |
3566 | line->numElements--; |
3567 | } |
3568 | |
3569 | static int argNameMatch(const char *one, const char *two) |
3570 | { |
3571 | char *first, *second; |
3572 | char *chptra, *chptrb; |
3573 | int rc; |
3574 | |
3575 | first = strcpy(alloca(strlen(one) + 1), one); |
3576 | second = strcpy(alloca(strlen(two) + 1), two); |
3577 | |
3578 | chptra = strchr(first, '='); |
3579 | if (chptra) |
3580 | *chptra = '\0'; |
3581 | |
3582 | chptrb = strchr(second, '='); |
3583 | if (chptrb) |
3584 | *chptrb = '\0'; |
3585 | |
3586 | rc = strcmp(first, second); |
3587 | |
3588 | if (chptra) |
3589 | *chptra = '='; |
3590 | if (chptrb) |
3591 | *chptrb = '='; |
3592 | |
3593 | return rc; |
3594 | } |
3595 | |
3596 | static int argHasValue(const char *arg) |
3597 | { |
3598 | char *chptr; |
3599 | |
3600 | chptr = strchr(arg, '='); |
3601 | if (chptr) |
3602 | return 1; |
3603 | return 0; |
3604 | } |
3605 | |
3606 | static int argValueMatch(const char *one, const char *two) |
3607 | { |
3608 | char *first, *second; |
3609 | char *chptra, *chptrb; |
3610 | |
3611 | first = strcpy(alloca(strlen(one) + 1), one); |
3612 | second = strcpy(alloca(strlen(two) + 1), two); |
3613 | |
3614 | chptra = strchr(first, '='); |
3615 | if (chptra) |
3616 | chptra += 1; |
3617 | |
3618 | chptrb = strchr(second, '='); |
3619 | if (chptrb) |
3620 | chptrb += 1; |
3621 | |
3622 | if (!chptra && !chptrb) |
3623 | return 0; |
3624 | else if (!chptra) |
3625 | return *chptrb - 0; |
3626 | else if (!chptrb) |
3627 | return 0 - *chptra; |
3628 | else |
3629 | return strcmp(chptra, chptrb); |
3630 | } |
3631 | |
3632 | int updateActualImage(struct grubConfig *cfg, const char *image, |
3633 | const char *prefix, const char *addArgs, |
3634 | const char *removeArgs, int multibootArgs) |
3635 | { |
3636 | struct singleEntry *entry; |
3637 | struct singleLine *line, *rootLine; |
3638 | int index = 0; |
3639 | int i, k; |
3640 | const char **newArgs, **oldArgs; |
3641 | const char **arg; |
3642 | int useKernelArgs, useRoot; |
3643 | int firstElement; |
3644 | int *usedElements; |
3645 | int doreplace; |
3646 | |
3647 | if (!image) |
3648 | return 0; |
3649 | |
3650 | if (!addArgs) { |
3651 | newArgs = malloc(sizeof(*newArgs)); |
3652 | *newArgs = NULL; |
3653 | } else { |
3654 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { |
3655 | fprintf(stderr, |
3656 | _("grubby: error separating arguments '%s'\n"), |
3657 | addArgs); |
3658 | return 1; |
3659 | } |
3660 | } |
3661 | |
3662 | if (!removeArgs) { |
3663 | oldArgs = malloc(sizeof(*oldArgs)); |
3664 | *oldArgs = NULL; |
3665 | } else { |
3666 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { |
3667 | fprintf(stderr, |
3668 | _("grubby: error separating arguments '%s'\n"), |
3669 | removeArgs); |
3670 | free(newArgs); |
3671 | return 1; |
3672 | } |
3673 | } |
3674 | |
3675 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3676 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); |
3677 | |
3678 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3679 | && !multibootArgs); |
3680 | |
3681 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3682 | |
3683 | if (multibootArgs && !entry->multiboot) |
3684 | continue; |
3685 | |
3686 | /* Determine where to put the args. If this config supports |
3687 | * LT_KERNELARGS, use that. Otherwise use |
3688 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. |
3689 | */ |
3690 | if (useKernelArgs) { |
3691 | line = getLineByType(LT_KERNELARGS, entry->lines); |
3692 | if (!line) { |
3693 | /* no LT_KERNELARGS, need to add it */ |
3694 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, |
3695 | cfg->secondaryIndent, NULL); |
3696 | } |
3697 | firstElement = 1; |
3698 | |
3699 | } else if (multibootArgs) { |
3700 | line = getLineByType(LT_HYPER, entry->lines); |
3701 | if (!line) { |
3702 | /* a multiboot entry without LT_HYPER? */ |
3703 | continue; |
3704 | } |
3705 | firstElement = 2; |
3706 | |
3707 | } else { |
3708 | line = |
3709 | getLineByType(LT_KERNEL | LT_MBMODULE | |
3710 | LT_KERNEL_EFI | LT_KERNEL_16, |
3711 | entry->lines); |
3712 | if (!line) { |
3713 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ |
3714 | continue; |
3715 | } |
3716 | firstElement = 2; |
3717 | } |
3718 | |
3719 | /* handle the elilo case which does: |
3720 | * append="hypervisor args -- kernel args" |
3721 | */ |
3722 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { |
3723 | /* this is a multiboot entry, make sure there's |
3724 | * -- on the args line |
3725 | */ |
3726 | for (i = firstElement; i < line->numElements; i++) { |
3727 | if (!strcmp(line->elements[i].item, "--")) |
3728 | break; |
3729 | } |
3730 | if (i == line->numElements) { |
3731 | /* assume all existing args are kernel args, |
3732 | * prepend -- to make it official |
3733 | */ |
3734 | insertElement(line, "--", firstElement, |
3735 | cfg->cfi); |
3736 | i = firstElement; |
3737 | } |
3738 | if (!multibootArgs) { |
3739 | /* kernel args start after the -- */ |
3740 | firstElement = i + 1; |
3741 | } |
3742 | } else if (cfg->cfi->mbConcatArgs) { |
3743 | /* this is a non-multiboot entry, remove hyper args */ |
3744 | for (i = firstElement; i < line->numElements; i++) { |
3745 | if (!strcmp(line->elements[i].item, "--")) |
3746 | break; |
3747 | } |
3748 | if (i < line->numElements) { |
3749 | /* remove args up to -- */ |
3750 | while (strcmp |
3751 | (line->elements[firstElement].item, |
3752 | "--")) |
3753 | removeElement(line, firstElement); |
3754 | /* remove -- */ |
3755 | removeElement(line, firstElement); |
3756 | } |
3757 | } |
3758 | |
3759 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3760 | |
3761 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3762 | |
3763 | doreplace = 1; |
3764 | for (i = firstElement; i < line->numElements; i++) { |
3765 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3766 | !strcmp(line->elements[i].item, "--")) { |
3767 | /* reached the end of hyper args, insert here */ |
3768 | doreplace = 0; |
3769 | break; |
3770 | } |
3771 | if (usedElements[i]) |
3772 | continue; |
3773 | if (!argNameMatch(line->elements[i].item, *arg)) { |
3774 | usedElements[i] = 1; |
3775 | break; |
3776 | } |
3777 | } |
3778 | |
3779 | if (i < line->numElements && doreplace) { |
3780 | /* direct replacement */ |
3781 | free(line->elements[i].item); |
3782 | line->elements[i].item = strdup(*arg); |
3783 | |
3784 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3785 | /* root= replacement */ |
3786 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3787 | if (rootLine) { |
3788 | free(rootLine->elements[1].item); |
3789 | rootLine->elements[1].item = |
3790 | strdup(*arg + 5); |
3791 | } else { |
3792 | rootLine = |
3793 | addLine(entry, cfg->cfi, LT_ROOT, |
3794 | cfg->secondaryIndent, |
3795 | *arg + 5); |
3796 | } |
3797 | } |
3798 | |
3799 | else { |
3800 | /* insert/append */ |
3801 | insertElement(line, *arg, i, cfg->cfi); |
3802 | usedElements = |
3803 | realloc(usedElements, |
3804 | line->numElements * |
3805 | sizeof(*usedElements)); |
3806 | memmove(&usedElements[i + 1], &usedElements[i], |
3807 | line->numElements - i - 1); |
3808 | usedElements[i] = 1; |
3809 | |
3810 | /* if we updated a root= here even though |
3811 | * there is a LT_ROOT available we need to |
3812 | * remove the LT_ROOT entry (this will happen |
3813 | * if we switch from a device to a label) */ |
3814 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3815 | rootLine = |
3816 | getLineByType(LT_ROOT, |
3817 | entry->lines); |
3818 | if (rootLine) |
3819 | removeLine(entry, rootLine); |
3820 | } |
3821 | } |
3822 | } |
3823 | |
3824 | free(usedElements); |
3825 | |
3826 | for (arg = oldArgs; *arg; arg++) { |
3827 | for (i = firstElement; i < line->numElements; i++) { |
3828 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3829 | !strcmp(line->elements[i].item, "--")) |
3830 | /* reached the end of hyper args, stop here */ |
3831 | break; |
3832 | if (!argNameMatch(line->elements[i].item, *arg)) { |
3833 | if (!argHasValue(*arg) || |
3834 | !argValueMatch(line->elements[i].item, *arg)) { |
3835 | removeElement(line, i); |
3836 | break; |
3837 | } |
3838 | } |
3839 | } |
3840 | /* handle removing LT_ROOT line too */ |
3841 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3842 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3843 | if (rootLine) |
3844 | removeLine(entry, rootLine); |
3845 | } |
3846 | } |
3847 | |
3848 | if (line->numElements == 1) { |
3849 | /* don't need the line at all (note it has to be a |
3850 | LT_KERNELARGS for this to happen */ |
3851 | removeLine(entry, line); |
3852 | } |
3853 | } |
3854 | |
3855 | free(newArgs); |
3856 | free(oldArgs); |
3857 | |
3858 | return 0; |
3859 | } |
3860 | |
3861 | int updateImage(struct grubConfig *cfg, const char *image, |
3862 | const char *prefix, const char *addArgs, |
3863 | const char *removeArgs, |
3864 | const char *addMBArgs, const char *removeMBArgs) |
3865 | { |
3866 | int rc = 0; |
3867 | |
3868 | if (!image) |
3869 | return rc; |
3870 | |
3871 | /* update the main args first... */ |
3872 | if (addArgs || removeArgs) |
3873 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, |
3874 | 0); |
3875 | if (rc) |
3876 | return rc; |
3877 | |
3878 | /* and now any multiboot args */ |
3879 | if (addMBArgs || removeMBArgs) |
3880 | rc = updateActualImage(cfg, image, prefix, addMBArgs, |
3881 | removeMBArgs, 1); |
3882 | return rc; |
3883 | } |
3884 | |
3885 | int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel, |
3886 | const char *image, const char *prefix, const char *initrd, |
3887 | const char *title) |
3888 | { |
3889 | struct singleEntry *entry; |
3890 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3891 | int index = 0; |
3892 | |
3893 | if (!image) |
3894 | return 0; |
3895 | |
3896 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3897 | kernelLine = getLineByType(LT_MBMODULE, entry->lines); |
3898 | if (!kernelLine) |
3899 | continue; |
3900 | |
3901 | /* if title is supplied, the entry's title must match it. */ |
3902 | if (title) { |
3903 | char *linetitle; |
3904 | |
3905 | line = |
3906 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3907 | entry->lines); |
3908 | if (!line) |
3909 | continue; |
3910 | |
3911 | linetitle = extractTitle(cfg, line); |
3912 | if (!linetitle) |
3913 | continue; |
3914 | if (strcmp(title, linetitle)) { |
3915 | free(linetitle); |
3916 | continue; |
3917 | } |
3918 | free(linetitle); |
3919 | } |
3920 | |
3921 | if (prefix) { |
3922 | int prefixLen = strlen(prefix); |
3923 | if (!strncmp(initrd, prefix, prefixLen)) |
3924 | initrd += prefixLen; |
3925 | } |
3926 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3927 | if (endLine) |
3928 | removeLine(entry, endLine); |
3929 | line = |
3930 | addLine(entry, cfg->cfi, |
3931 | preferredLineType(LT_MBMODULE, cfg->cfi), |
3932 | kernelLine->indent, initrd); |
3933 | if (!line) |
3934 | return 1; |
3935 | if (endLine) { |
3936 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3937 | if (!line) |
3938 | return 1; |
3939 | } |
3940 | |
3941 | break; |
3942 | } |
3943 | |
3944 | return 0; |
3945 | } |
3946 | |
3947 | int updateInitrd(struct grubConfig *cfg, const char *image, |
3948 | const char *prefix, const char *initrd, const char *title) |
3949 | { |
3950 | struct singleEntry *entry; |
3951 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3952 | int index = 0; |
3953 | |
3954 | if (!image) |
3955 | return 0; |
3956 | |
3957 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3958 | kernelLine = |
3959 | getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16, |
3960 | entry->lines); |
3961 | if (!kernelLine) |
3962 | continue; |
3963 | |
3964 | /* if title is supplied, the entry's title must match it. */ |
3965 | if (title) { |
3966 | char *linetitle; |
3967 | |
3968 | line = |
3969 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3970 | entry->lines); |
3971 | if (!line) |
3972 | continue; |
3973 | |
3974 | linetitle = extractTitle(cfg, line); |
3975 | if (!linetitle) |
3976 | continue; |
3977 | if (strcmp(title, linetitle)) { |
3978 | free(linetitle); |
3979 | continue; |
3980 | } |
3981 | free(linetitle); |
3982 | } |
3983 | |
3984 | line = |
3985 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
3986 | entry->lines); |
3987 | if (line) |
3988 | removeLine(entry, line); |
3989 | if (prefix) { |
3990 | int prefixLen = strlen(prefix); |
3991 | if (!strncmp(initrd, prefix, prefixLen)) |
3992 | initrd += prefixLen; |
3993 | } |
3994 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3995 | if (endLine) |
3996 | removeLine(entry, endLine); |
3997 | enum lineType_e lt; |
3998 | switch (kernelLine->type) { |
3999 | case LT_KERNEL: |
4000 | lt = LT_INITRD; |
4001 | break; |
4002 | case LT_KERNEL_EFI: |
4003 | lt = LT_INITRD_EFI; |
4004 | break; |
4005 | case LT_KERNEL_16: |
4006 | lt = LT_INITRD_16; |
4007 | break; |
4008 | default: |
4009 | lt = preferredLineType(LT_INITRD, cfg->cfi); |
4010 | } |
4011 | line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd); |
4012 | if (!line) |
4013 | return 1; |
4014 | if (endLine) { |
4015 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
4016 | if (!line) |
4017 | return 1; |
4018 | } |
4019 | |
4020 | break; |
4021 | } |
4022 | |
4023 | return 0; |
4024 | } |
4025 | |
4026 | int checkDeviceBootloader(const char *device, const unsigned char *boot) |
4027 | { |
4028 | int fd; |
4029 | unsigned char bootSect[512]; |
4030 | int offset; |
4031 | |
4032 | fd = open(device, O_RDONLY); |
4033 | if (fd < 0) { |
4034 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
4035 | device, strerror(errno)); |
4036 | return 1; |
4037 | } |
4038 | |
4039 | if (read(fd, bootSect, 512) != 512) { |
4040 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4041 | device, strerror(errno)); |
4042 | return 1; |
4043 | } |
4044 | close(fd); |
4045 | |
4046 | /* first three bytes should match, a jmp short should be in there */ |
4047 | if (memcmp(boot, bootSect, 3)) |
4048 | return 0; |
4049 | |
4050 | if (boot[1] == JMP_SHORT_OPCODE) { |
4051 | offset = boot[2] + 2; |
4052 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { |
4053 | offset = (boot[3] << 8) + boot[2] + 2; |
4054 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
4055 | offset = boot[1] + 2; |
4056 | /* |
4057 | * it looks like grub, when copying stage1 into the mbr, |
4058 | * patches stage1 right after the JMP location, replacing |
4059 | * other instructions such as JMPs for NOOPs. So, relax the |
4060 | * check a little bit by skipping those different bytes. |
4061 | */ |
4062 | if ((bootSect[offset + 1] == NOOP_OPCODE) |
4063 | && (bootSect[offset + 2] == NOOP_OPCODE)) { |
4064 | offset = offset + 3; |
4065 | } |
4066 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
4067 | offset = (boot[2] << 8) + boot[1] + 2; |
4068 | } else { |
4069 | return 0; |
4070 | } |
4071 | |
4072 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) |
4073 | return 0; |
4074 | |
4075 | return 2; |
4076 | } |
4077 | |
4078 | int checkLiloOnRaid(char *mdDev, const unsigned char *boot) |
4079 | { |
4080 | int fd; |
4081 | char buf[65536]; |
4082 | char *end; |
4083 | char *chptr; |
4084 | char *chptr2; |
4085 | int rc; |
4086 | |
4087 | /* it's on raid; we need to parse /proc/mdstat and check all of the |
4088 | *raw* devices listed in there */ |
4089 | |
4090 | if (!strncmp(mdDev, "/dev/", 5)) |
4091 | mdDev += 5; |
4092 | |
4093 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { |
4094 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), |
4095 | strerror(errno)); |
4096 | return 2; |
4097 | } |
4098 | |
4099 | rc = read(fd, buf, sizeof(buf) - 1); |
4100 | if (rc < 0 || rc == (sizeof(buf) - 1)) { |
4101 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), |
4102 | strerror(errno)); |
4103 | close(fd); |
4104 | return 2; |
4105 | } |
4106 | close(fd); |
4107 | buf[rc] = '\0'; |
4108 | |
4109 | chptr = buf; |
4110 | while (*chptr) { |
4111 | end = strchr(chptr, '\n'); |
4112 | if (!end) |
4113 | break; |
4114 | *end = '\0'; |
4115 | |
4116 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && |
4117 | chptr[strlen(mdDev)] == ' ') { |
4118 | |
4119 | /* found the device */ |
4120 | while (*chptr && *chptr != ':') |
4121 | chptr++; |
4122 | chptr++; |
4123 | while (*chptr && isspace(*chptr)) |
4124 | chptr++; |
4125 | |
4126 | /* skip the "active" bit */ |
4127 | while (*chptr && !isspace(*chptr)) |
4128 | chptr++; |
4129 | while (*chptr && isspace(*chptr)) |
4130 | chptr++; |
4131 | |
4132 | /* skip the raid level */ |
4133 | while (*chptr && !isspace(*chptr)) |
4134 | chptr++; |
4135 | while (*chptr && isspace(*chptr)) |
4136 | chptr++; |
4137 | |
4138 | /* everything else is partition stuff */ |
4139 | while (*chptr) { |
4140 | chptr2 = chptr; |
4141 | while (*chptr2 && *chptr2 != '[') |
4142 | chptr2++; |
4143 | if (!*chptr2) |
4144 | break; |
4145 | |
4146 | /* yank off the numbers at the end */ |
4147 | chptr2--; |
4148 | while (isdigit(*chptr2) && chptr2 > chptr) |
4149 | chptr2--; |
4150 | chptr2++; |
4151 | *chptr2 = '\0'; |
4152 | |
4153 | /* Better, now we need the /dev/ back. We're |
4154 | * done with everything before this point, so |
4155 | * we can just put the /dev/ part there. |
4156 | * There will always be room. */ |
4157 | memcpy(chptr - 5, "/dev/", 5); |
4158 | rc = checkDeviceBootloader(chptr - 5, boot); |
4159 | if (rc != 2) { |
4160 | return rc; |
4161 | } |
4162 | |
4163 | chptr = chptr2 + 1; |
4164 | /* skip the [11] bit */ |
4165 | while (*chptr && !isspace(*chptr)) |
4166 | chptr++; |
4167 | /* and move to the next one */ |
4168 | while (*chptr && isspace(*chptr)) |
4169 | chptr++; |
4170 | } |
4171 | |
4172 | /* we're good to go */ |
4173 | return 2; |
4174 | } |
4175 | |
4176 | chptr = end + 1; |
4177 | } |
4178 | |
4179 | fprintf(stderr, |
4180 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), |
4181 | mdDev); |
4182 | return 0; |
4183 | } |
4184 | |
4185 | int checkForLilo(struct grubConfig *config) |
4186 | { |
4187 | int fd; |
4188 | unsigned char boot[512]; |
4189 | struct singleLine *line; |
4190 | |
4191 | for (line = config->theLines; line; line = line->next) |
4192 | if (line->type == LT_BOOT) |
4193 | break; |
4194 | |
4195 | if (!line) { |
4196 | fprintf(stderr, |
4197 | _ |
4198 | ("grubby: no boot line found in lilo configuration\n")); |
4199 | return 1; |
4200 | } |
4201 | |
4202 | if (line->numElements != 2) |
4203 | return 1; |
4204 | |
4205 | fd = open("/boot/boot.b", O_RDONLY); |
4206 | if (fd < 0) { |
4207 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
4208 | "/boot/boot.b", strerror(errno)); |
4209 | return 1; |
4210 | } |
4211 | |
4212 | if (read(fd, boot, 512) != 512) { |
4213 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4214 | "/boot/boot.b", strerror(errno)); |
4215 | return 1; |
4216 | } |
4217 | close(fd); |
4218 | |
4219 | if (!strncmp("/dev/md", line->elements[1].item, 7)) |
4220 | return checkLiloOnRaid(line->elements[1].item, boot); |
4221 | |
4222 | return checkDeviceBootloader(line->elements[1].item, boot); |
4223 | } |
4224 | |
4225 | int checkForGrub2(struct grubConfig *config) |
4226 | { |
4227 | if (!access("/etc/grub.d/", R_OK)) |
4228 | return 2; |
4229 | |
4230 | return 1; |
4231 | } |
4232 | |
4233 | int checkForGrub(struct grubConfig *config) |
4234 | { |
4235 | int fd; |
4236 | unsigned char bootSect[512]; |
4237 | char *boot; |
4238 | int onSuse = isSuseSystem(); |
4239 | |
4240 | if (onSuse) { |
4241 | if (parseSuseGrubConf(NULL, &boot)) |
4242 | return 0; |
4243 | } else { |
4244 | if (parseSysconfigGrub(NULL, &boot)) |
4245 | return 0; |
4246 | } |
4247 | |
4248 | /* assume grub is not installed -- not an error condition */ |
4249 | if (!boot) |
4250 | return 0; |
4251 | |
4252 | fd = open("/boot/grub/stage1", O_RDONLY); |
4253 | if (fd < 0) |
4254 | /* this doesn't exist if grub hasn't been installed */ |
4255 | return 0; |
4256 | |
4257 | if (read(fd, bootSect, 512) != 512) { |
4258 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4259 | "/boot/grub/stage1", strerror(errno)); |
4260 | close(fd); |
4261 | return 1; |
4262 | } |
4263 | close(fd); |
4264 | |
4265 | /* The more elaborate checks do not work on SuSE. The checks done |
4266 | * seem to be reasonble (at least for now), so just return success |
4267 | */ |
4268 | if (onSuse) |
4269 | return 2; |
4270 | |
4271 | return checkDeviceBootloader(boot, bootSect); |
4272 | } |
4273 | |
4274 | int checkForExtLinux(struct grubConfig *config) |
4275 | { |
4276 | int fd; |
4277 | unsigned char bootSect[512]; |
4278 | char *boot; |
4279 | char executable[] = "/boot/extlinux/extlinux"; |
4280 | |
4281 | printf("entered: checkForExtLinux()\n"); |
4282 | |
4283 | if (parseSysconfigGrub(NULL, &boot)) |
4284 | return 0; |
4285 | |
4286 | /* assume grub is not installed -- not an error condition */ |
4287 | if (!boot) |
4288 | return 0; |
4289 | |
4290 | fd = open(executable, O_RDONLY); |
4291 | if (fd < 0) |
4292 | /* this doesn't exist if grub hasn't been installed */ |
4293 | return 0; |
4294 | |
4295 | if (read(fd, bootSect, 512) != 512) { |
4296 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4297 | executable, strerror(errno)); |
4298 | return 1; |
4299 | } |
4300 | close(fd); |
4301 | |
4302 | return checkDeviceBootloader(boot, bootSect); |
4303 | } |
4304 | |
4305 | int checkForYaboot(struct grubConfig *config) |
4306 | { |
4307 | /* |
4308 | * This is a simplistic check that we consider good enough for own puporses |
4309 | * |
4310 | * If we were to properly check if yaboot is *installed* we'd need to: |
4311 | * 1) get the system boot device (LT_BOOT) |
4312 | * 2) considering it's a raw filesystem, check if the yaboot binary matches |
4313 | * the content on the boot device |
4314 | * 3) if not, copy the binary to a temporary file and run "addnote" on it |
4315 | * 4) check again if binary and boot device contents match |
4316 | */ |
4317 | if (!access("/etc/yaboot.conf", R_OK)) |
4318 | return 2; |
4319 | |
4320 | return 1; |
4321 | } |
4322 | |
4323 | int checkForElilo(struct grubConfig *config) |
4324 | { |
4325 | if (!access("/etc/elilo.conf", R_OK)) |
4326 | return 2; |
4327 | |
4328 | return 1; |
4329 | } |
4330 | |
4331 | static char *getRootSpecifier(char *str) |
4332 | { |
4333 | char *idx, *rootspec = NULL; |
4334 | |
4335 | if (*str == '(') { |
4336 | idx = rootspec = strdup(str); |
4337 | while (*idx && (*idx != ')') && (!isspace(*idx))) |
4338 | idx++; |
4339 | *(++idx) = '\0'; |
4340 | } |
4341 | return rootspec; |
4342 | } |
4343 | |
4344 | static char *getInitrdVal(struct grubConfig *config, |
4345 | const char *prefix, struct singleLine *tmplLine, |
4346 | const char *newKernelInitrd, |
4347 | const char **extraInitrds, int extraInitrdCount) |
4348 | { |
4349 | char *initrdVal, *end; |
4350 | int i; |
4351 | size_t totalSize; |
4352 | size_t prefixLen; |
4353 | char separatorChar; |
4354 | |
4355 | prefixLen = strlen(prefix); |
4356 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ; |
4357 | |
4358 | for (i = 0; i < extraInitrdCount; i++) { |
4359 | totalSize += sizeof(separatorChar); |
4360 | totalSize += strlen(extraInitrds[i]) - prefixLen; |
4361 | } |
4362 | |
4363 | initrdVal = end = malloc(totalSize); |
4364 | |
4365 | end = stpcpy(end, newKernelInitrd + prefixLen); |
4366 | |
4367 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; |
4368 | for (i = 0; i < extraInitrdCount; i++) { |
4369 | const char *extraInitrd; |
4370 | int j; |
4371 | |
4372 | extraInitrd = extraInitrds[i] + prefixLen; |
4373 | /* Don't add entries that are already there */ |
4374 | if (tmplLine != NULL) { |
4375 | for (j = 2; j < tmplLine->numElements; j++) |
4376 | if (strcmp |
4377 | (extraInitrd, |
4378 | tmplLine->elements[j].item) == 0) |
4379 | break; |
4380 | |
4381 | if (j != tmplLine->numElements) |
4382 | continue; |
4383 | } |
4384 | |
4385 | *end++ = separatorChar; |
4386 | end = stpcpy(end, extraInitrd); |
4387 | } |
4388 | |
4389 | return initrdVal; |
4390 | } |
4391 | |
4392 | int addNewKernel(struct grubConfig *config, struct singleEntry *template, |
4393 | const char *prefix, |
4394 | const char *newKernelPath, const char *newKernelTitle, |
4395 | const char *newKernelArgs, const char *newKernelInitrd, |
4396 | const char **extraInitrds, int extraInitrdCount, |
4397 | const char *newMBKernel, const char *newMBKernelArgs, |
4398 | const char *newDevTreePath, int newIndex) |
4399 | { |
4400 | struct singleEntry *new, *entry, *prev = NULL; |
4401 | struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL; |
4402 | int needs; |
4403 | char *indexs; |
4404 | char *chptr; |
4405 | int rc; |
4406 | |
4407 | if (!newKernelPath) |
4408 | return 0; |
4409 | |
4410 | rc = asprintf(&indexs, "%d", newIndex); |
4411 | if (rc < 0) |
4412 | return 1; |
4413 | |
4414 | /* if the newKernelTitle is too long silently munge it into something |
4415 | * we can live with. truncating is first check, then we'll just mess with |
4416 | * it until it looks better */ |
4417 | if (config->cfi->maxTitleLength && |
4418 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { |
4419 | char *buf = alloca(config->cfi->maxTitleLength + 7); |
4420 | char *numBuf = alloca(config->cfi->maxTitleLength + 1); |
4421 | int i = 1; |
4422 | |
4423 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, |
4424 | newKernelTitle); |
4425 | while (findEntryByPath(config, buf, NULL, NULL)) { |
4426 | sprintf(numBuf, "%d", i++); |
4427 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); |
4428 | } |
4429 | |
4430 | newKernelTitle = buf + 6; |
4431 | } |
4432 | |
4433 | new = malloc(sizeof(*new)); |
4434 | new->skip = 0; |
4435 | new->multiboot = 0; |
4436 | new->lines = NULL; |
4437 | entry = config->entries; |
4438 | for (unsigned int i = 0; i < newIndex; i++) { |
4439 | if (!entry) |
4440 | break; |
4441 | prev = entry; |
4442 | entry = entry->next; |
4443 | } |
4444 | new->next = entry; |
4445 | |
4446 | if (prev) |
4447 | prev->next = new; |
4448 | else |
4449 | config->entries = new; |
4450 | |
4451 | /* copy/update from the template */ |
4452 | needs = NEED_KERNEL | NEED_TITLE; |
4453 | if (newKernelInitrd) |
4454 | needs |= NEED_INITRD; |
4455 | if (newMBKernel) { |
4456 | needs |= NEED_MB; |
4457 | new->multiboot = 1; |
4458 | } |
4459 | if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi)) |
4460 | needs |= NEED_DEVTREE; |
4461 | |
4462 | if (template) { |
4463 | for (masterLine = template->lines; |
4464 | masterLine && (tmplLine = lineDup(masterLine)); |
4465 | lineFree(tmplLine), masterLine = masterLine->next) { |
4466 | dbgPrintf("addNewKernel processing %d\n", |
4467 | tmplLine->type); |
4468 | |
4469 | /* skip comments */ |
4470 | chptr = tmplLine->indent; |
4471 | while (*chptr && isspace(*chptr)) |
4472 | chptr++; |
4473 | if (*chptr == '#') |
4474 | continue; |
4475 | |
4476 | if (iskernel(tmplLine->type) |
4477 | && tmplLine->numElements >= 2) { |
4478 | if (!template->multiboot && (needs & NEED_MB)) { |
4479 | /* it's not a multiboot template and |
4480 | * this is the kernel line. Try to |
4481 | * be intelligent about inserting the |
4482 | * hypervisor at the same time. |
4483 | */ |
4484 | if (config->cfi->mbHyperFirst) { |
4485 | /* insert the hypervisor first */ |
4486 | newLine = |
4487 | addLine(new, config->cfi, |
4488 | LT_HYPER, |
4489 | tmplLine->indent, |
4490 | newMBKernel + |
4491 | strlen(prefix)); |
4492 | /* set up for adding the |
4493 | * kernel line */ |
4494 | free(tmplLine->indent); |
4495 | tmplLine->indent = |
4496 | strdup(config-> |
4497 | secondaryIndent); |
4498 | needs &= ~NEED_MB; |
4499 | } |
4500 | if (needs & NEED_KERNEL) { |
4501 | /* use addLineTmpl to |
4502 | * preserve line elements, |
4503 | * otherwise we could just |
4504 | * call addLine. |
4505 | * Unfortunately this means |
4506 | * making some changes to the |
4507 | * template such as the |
4508 | * indent change above and |
4509 | * the type change below. |
4510 | */ |
4511 | struct keywordTypes *mbm_kw = |
4512 | getKeywordByType |
4513 | (LT_MBMODULE, config->cfi); |
4514 | if (mbm_kw) { |
4515 | tmplLine->type = |
4516 | LT_MBMODULE; |
4517 | free(tmplLine-> |
4518 | elements[0].item); |
4519 | tmplLine->elements[0]. |
4520 | item = |
4521 | strdup(mbm_kw->key); |
4522 | } |
4523 | newLine = |
4524 | addLineTmpl(new, tmplLine, |
4525 | newLine, |
4526 | newKernelPath + |
4527 | strlen(prefix), |
4528 | config->cfi); |
4529 | needs &= ~NEED_KERNEL; |
4530 | } |
4531 | if (needs & NEED_MB) { /* !mbHyperFirst */ |
4532 | newLine = |
4533 | addLine(new, config->cfi, |
4534 | LT_HYPER, |
4535 | config-> |
4536 | secondaryIndent, |
4537 | newMBKernel + |
4538 | strlen(prefix)); |
4539 | needs &= ~NEED_MB; |
4540 | } |
4541 | } else if (needs & NEED_KERNEL) { |
4542 | newLine = |
4543 | addLineTmpl(new, tmplLine, newLine, |
4544 | newKernelPath + |
4545 | strlen(prefix), |
4546 | config->cfi); |
4547 | needs &= ~NEED_KERNEL; |
4548 | } |
4549 | |
4550 | } else if (tmplLine->type == LT_HYPER && |
4551 | tmplLine->numElements >= 2) { |
4552 | if (needs & NEED_MB) { |
4553 | newLine = |
4554 | addLineTmpl(new, tmplLine, newLine, |
4555 | newMBKernel + |
4556 | strlen(prefix), |
4557 | config->cfi); |
4558 | needs &= ~NEED_MB; |
4559 | } |
4560 | |
4561 | } else if (tmplLine->type == LT_MBMODULE && |
4562 | tmplLine->numElements >= 2) { |
4563 | if (new->multiboot) { |
4564 | if (needs & NEED_KERNEL) { |
4565 | newLine = |
4566 | addLineTmpl(new, tmplLine, |
4567 | newLine, |
4568 | newKernelPath + |
4569 | strlen(prefix), |
4570 | config->cfi); |
4571 | needs &= ~NEED_KERNEL; |
4572 | } else if (config->cfi->mbInitRdIsModule |
4573 | && (needs & NEED_INITRD)) { |
4574 | char *initrdVal; |
4575 | initrdVal = |
4576 | getInitrdVal(config, prefix, |
4577 | tmplLine, |
4578 | newKernelInitrd, |
4579 | extraInitrds, |
4580 | extraInitrdCount); |
4581 | newLine = |
4582 | addLineTmpl(new, tmplLine, |
4583 | newLine, |
4584 | initrdVal, |
4585 | config->cfi); |
4586 | free(initrdVal); |
4587 | needs &= ~NEED_INITRD; |
4588 | } |
4589 | } else if (needs & NEED_KERNEL) { |
4590 | /* template is multi but new is not, |
4591 | * insert the kernel in the first |
4592 | * module slot |
4593 | */ |
4594 | tmplLine->type = |
4595 | preferredLineType(LT_KERNEL, |
4596 | config->cfi); |
4597 | free(tmplLine->elements[0].item); |
4598 | tmplLine->elements[0].item = |
4599 | strdup(getKeywordByType |
4600 | (tmplLine->type, |
4601 | config->cfi)->key); |
4602 | newLine = |
4603 | addLineTmpl(new, tmplLine, newLine, |
4604 | newKernelPath + |
4605 | strlen(prefix), |
4606 | config->cfi); |
4607 | needs &= ~NEED_KERNEL; |
4608 | } else if (needs & NEED_INITRD) { |
4609 | char *initrdVal; |
4610 | /* template is multi but new is not, |
4611 | * insert the initrd in the second |
4612 | * module slot |
4613 | */ |
4614 | tmplLine->type = |
4615 | preferredLineType(LT_INITRD, |
4616 | config->cfi); |
4617 | free(tmplLine->elements[0].item); |
4618 | tmplLine->elements[0].item = |
4619 | strdup(getKeywordByType |
4620 | (tmplLine->type, |
4621 | config->cfi)->key); |
4622 | initrdVal = |
4623 | getInitrdVal(config, prefix, |
4624 | tmplLine, |
4625 | newKernelInitrd, |
4626 | extraInitrds, |
4627 | extraInitrdCount); |
4628 | newLine = |
4629 | addLineTmpl(new, tmplLine, newLine, |
4630 | initrdVal, config->cfi); |
4631 | free(initrdVal); |
4632 | needs &= ~NEED_INITRD; |
4633 | } |
4634 | |
4635 | } else if (isinitrd(tmplLine->type) |
4636 | && tmplLine->numElements >= 2) { |
4637 | if (needs & NEED_INITRD && new->multiboot |
4638 | && !template->multiboot |
4639 | && config->cfi->mbInitRdIsModule) { |
4640 | /* make sure we don't insert the |
4641 | * module initrd before the module |
4642 | * kernel... if we don't do it here, |
4643 | * it will be inserted following the |
4644 | * template. |
4645 | */ |
4646 | if (!needs & NEED_KERNEL) { |
4647 | char *initrdVal; |
4648 | |
4649 | initrdVal = |
4650 | getInitrdVal(config, prefix, |
4651 | tmplLine, |
4652 | newKernelInitrd, |
4653 | extraInitrds, |
4654 | extraInitrdCount); |
4655 | newLine = |
4656 | addLine(new, config->cfi, |
4657 | LT_MBMODULE, |
4658 | config-> |
4659 | secondaryIndent, |
4660 | initrdVal); |
4661 | free(initrdVal); |
4662 | needs &= ~NEED_INITRD; |
4663 | } |
4664 | } else if (needs & NEED_INITRD) { |
4665 | char *initrdVal; |
4666 | initrdVal = |
4667 | getInitrdVal(config, prefix, |
4668 | tmplLine, |
4669 | newKernelInitrd, |
4670 | extraInitrds, |
4671 | extraInitrdCount); |
4672 | newLine = |
4673 | addLineTmpl(new, tmplLine, newLine, |
4674 | initrdVal, config->cfi); |
4675 | free(initrdVal); |
4676 | needs &= ~NEED_INITRD; |
4677 | } |
4678 | |
4679 | } else if (tmplLine->type == LT_MENUENTRY && |
4680 | (needs & NEED_TITLE)) { |
4681 | requote(tmplLine, config->cfi); |
4682 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4683 | strcpy(nkt, "'"); |
4684 | strcat(nkt, newKernelTitle); |
4685 | strcat(nkt, "'"); |
4686 | newLine = |
4687 | addLineTmpl(new, tmplLine, newLine, nkt, |
4688 | config->cfi); |
4689 | free(nkt); |
4690 | needs &= ~NEED_TITLE; |
4691 | } else if (tmplLine->type == LT_TITLE && |
4692 | (needs & NEED_TITLE)) { |
4693 | if (tmplLine->numElements >= 2) { |
4694 | newLine = |
4695 | addLineTmpl(new, tmplLine, newLine, |
4696 | newKernelTitle, |
4697 | config->cfi); |
4698 | needs &= ~NEED_TITLE; |
4699 | } else if (tmplLine->numElements == 1 && |
4700 | config->cfi->titleBracketed) { |
4701 | /* addLineTmpl doesn't handle |
4702 | * titleBracketed */ |
4703 | newLine = |
4704 | addLine(new, config->cfi, LT_TITLE, |
4705 | tmplLine->indent, |
4706 | newKernelTitle); |
4707 | needs &= ~NEED_TITLE; |
4708 | } |
4709 | } else if (tmplLine->type == LT_ECHO) { |
4710 | requote(tmplLine, config->cfi); |
4711 | static const char *prefix = "'Loading "; |
4712 | if (tmplLine->numElements > 1 && |
4713 | strstr(tmplLine->elements[1].item, prefix) |
4714 | && masterLine->next |
4715 | && iskernel(masterLine->next->type)) { |
4716 | char *newTitle = |
4717 | malloc(strlen(prefix) + |
4718 | strlen(newKernelTitle) + 2); |
4719 | |
4720 | strcpy(newTitle, prefix); |
4721 | strcat(newTitle, newKernelTitle); |
4722 | strcat(newTitle, "'"); |
4723 | newLine = |
4724 | addLine(new, config->cfi, LT_ECHO, |
4725 | tmplLine->indent, newTitle); |
4726 | free(newTitle); |
4727 | } else { |
4728 | /* pass through other lines from the |
4729 | * template */ |
4730 | newLine = |
4731 | addLineTmpl(new, tmplLine, newLine, |
4732 | NULL, config->cfi); |
4733 | } |
4734 | } else if (tmplLine->type == LT_DEVTREE && |
4735 | tmplLine->numElements == 2 |
4736 | && newDevTreePath) { |
4737 | newLine = |
4738 | addLineTmpl(new, tmplLine, newLine, |
4739 | newDevTreePath + strlen(prefix), |
4740 | config->cfi); |
4741 | needs &= ~NEED_DEVTREE; |
4742 | } else if (tmplLine->type == LT_ENTRY_END |
4743 | && needs & NEED_DEVTREE) { |
4744 | const char *ndtp = newDevTreePath; |
4745 | if (!strncmp |
4746 | (newDevTreePath, prefix, strlen(prefix))) |
4747 | ndtp += strlen(prefix); |
4748 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4749 | config->secondaryIndent, |
4750 | ndtp); |
4751 | needs &= ~NEED_DEVTREE; |
4752 | newLine = |
4753 | addLineTmpl(new, tmplLine, newLine, NULL, |
4754 | config->cfi); |
4755 | } else { |
4756 | /* pass through other lines from the template */ |
4757 | newLine = |
4758 | addLineTmpl(new, tmplLine, newLine, NULL, |
4759 | config->cfi); |
4760 | } |
4761 | } |
4762 | |
4763 | } else { |
4764 | /* don't have a template, so start the entry with the |
4765 | * appropriate starting line |
4766 | */ |
4767 | switch (config->cfi->entryStart) { |
4768 | case LT_KERNEL: |
4769 | case LT_KERNEL_EFI: |
4770 | case LT_KERNEL_16: |
4771 | if (new->multiboot && config->cfi->mbHyperFirst) { |
4772 | /* fall through to LT_HYPER */ |
4773 | } else { |
4774 | newLine = addLine(new, config->cfi, |
4775 | preferredLineType(LT_KERNEL, |
4776 | config-> |
4777 | cfi), |
4778 | config->primaryIndent, |
4779 | newKernelPath + |
4780 | strlen(prefix)); |
4781 | needs &= ~NEED_KERNEL; |
4782 | break; |
4783 | } |
4784 | |
4785 | case LT_HYPER: |
4786 | newLine = addLine(new, config->cfi, LT_HYPER, |
4787 | config->primaryIndent, |
4788 | newMBKernel + strlen(prefix)); |
4789 | needs &= ~NEED_MB; |
4790 | break; |
4791 | |
4792 | case LT_MENUENTRY:{ |
4793 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4794 | strcpy(nkt, "'"); |
4795 | strcat(nkt, newKernelTitle); |
4796 | strcat(nkt, "'"); |
4797 | newLine = |
4798 | addLine(new, config->cfi, LT_MENUENTRY, |
4799 | config->primaryIndent, nkt); |
4800 | free(nkt); |
4801 | needs &= ~NEED_TITLE; |
4802 | needs |= NEED_END; |
4803 | break; |
4804 | } |
4805 | case LT_TITLE: |
4806 | if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above) |
4807 | char *templabel; |
4808 | int x = 0, y = 0; |
4809 | |
4810 | templabel = strdup(newKernelTitle); |
4811 | while (templabel[x]) { |
4812 | if (templabel[x] == ' ') { |
4813 | y = x; |
4814 | while (templabel[y]) { |
4815 | templabel[y] = |
4816 | templabel[y + 1]; |
4817 | y++; |
4818 | } |
4819 | } |
4820 | x++; |
4821 | } |
4822 | newLine = addLine(new, config->cfi, LT_TITLE, |
4823 | config->primaryIndent, |
4824 | templabel); |
4825 | free(templabel); |
4826 | } else { |
4827 | newLine = addLine(new, config->cfi, LT_TITLE, |
4828 | config->primaryIndent, |
4829 | newKernelTitle); |
4830 | } |
4831 | needs &= ~NEED_TITLE; |
4832 | break; |
4833 | |
4834 | default: |
4835 | abort(); |
4836 | } |
4837 | } |
4838 | |
4839 | struct singleLine *endLine = NULL; |
4840 | endLine = getLineByType(LT_ENTRY_END, new->lines); |
4841 | if (endLine) { |
4842 | removeLine(new, endLine); |
4843 | needs |= NEED_END; |
4844 | } |
4845 | |
4846 | /* add the remainder of the lines, i.e. those that either |
4847 | * weren't present in the template, or in the case of no template, |
4848 | * all the lines following the entryStart. |
4849 | */ |
4850 | if (needs & NEED_TITLE) { |
4851 | newLine = addLine(new, config->cfi, LT_TITLE, |
4852 | config->secondaryIndent, newKernelTitle); |
4853 | needs &= ~NEED_TITLE; |
4854 | } |
4855 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
4856 | newLine = addLine(new, config->cfi, LT_HYPER, |
4857 | config->secondaryIndent, |
4858 | newMBKernel + strlen(prefix)); |
4859 | needs &= ~NEED_MB; |
4860 | } |
4861 | if (needs & NEED_KERNEL) { |
4862 | newLine = addLine(new, config->cfi, |
4863 | (new->multiboot |
4864 | && getKeywordByType(LT_MBMODULE, |
4865 | config->cfi)) |
4866 | ? LT_MBMODULE : preferredLineType(LT_KERNEL, |
4867 | config-> |
4868 | cfi), |
4869 | config->secondaryIndent, |
4870 | newKernelPath + strlen(prefix)); |
4871 | needs &= ~NEED_KERNEL; |
4872 | } |
4873 | if (needs & NEED_MB) { |
4874 | newLine = addLine(new, config->cfi, LT_HYPER, |
4875 | config->secondaryIndent, |
4876 | newMBKernel + strlen(prefix)); |
4877 | needs &= ~NEED_MB; |
4878 | } |
4879 | if (needs & NEED_INITRD) { |
4880 | char *initrdVal; |
4881 | initrdVal = |
4882 | getInitrdVal(config, prefix, NULL, newKernelInitrd, |
4883 | extraInitrds, extraInitrdCount); |
4884 | newLine = |
4885 | addLine(new, config->cfi, |
4886 | (new->multiboot |
4887 | && getKeywordByType(LT_MBMODULE, config->cfi)) |
4888 | ? LT_MBMODULE : preferredLineType(LT_INITRD, |
4889 | config->cfi), |
4890 | config->secondaryIndent, initrdVal); |
4891 | free(initrdVal); |
4892 | needs &= ~NEED_INITRD; |
4893 | } |
4894 | if (needs & NEED_DEVTREE) { |
4895 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4896 | config->secondaryIndent, newDevTreePath); |
4897 | needs &= ~NEED_DEVTREE; |
4898 | } |
4899 | |
4900 | /* NEEDS_END must be last on bootloaders that need it... */ |
4901 | if (needs & NEED_END) { |
4902 | newLine = addLine(new, config->cfi, LT_ENTRY_END, |
4903 | config->secondaryIndent, NULL); |
4904 | needs &= ~NEED_END; |
4905 | } |
4906 | |
4907 | if (needs) { |
4908 | printf(_("grubby: needs=%d, aborting\n"), needs); |
4909 | abort(); |
4910 | } |
4911 | |
4912 | if (updateImage(config, indexs, prefix, newKernelArgs, NULL, |
4913 | newMBKernelArgs, NULL)) { |
4914 | config->isModified = 1; |
4915 | return 1; |
4916 | } |
4917 | |
4918 | return 0; |
4919 | } |
4920 | |
4921 | int main(int argc, const char **argv) |
4922 | { |
4923 | poptContext optCon; |
4924 | const char *grubConfig = NULL; |
4925 | char *outputFile = NULL; |
4926 | int arg = 0; |
4927 | int flags = 0; |
4928 | int badImageOkay = 0; |
4929 | int configureGrub2 = 0; |
4930 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
4931 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; |
4932 | int configureExtLinux = 0; |
4933 | int bootloaderProbe = 0; |
4934 | int extraInitrdCount = 0; |
4935 | char *updateKernelPath = NULL; |
4936 | char *newKernelPath = NULL; |
4937 | char *removeKernelPath = NULL; |
4938 | char *newKernelArgs = NULL; |
4939 | char *newKernelInitrd = NULL; |
4940 | char *newKernelTitle = NULL; |
4941 | char *newDevTreePath = NULL; |
4942 | char *newMBKernel = NULL; |
4943 | char *newMBKernelArgs = NULL; |
4944 | int newIndex = 0; |
4945 | char *removeMBKernelArgs = NULL; |
4946 | char *removeMBKernel = NULL; |
4947 | char *bootPrefix = NULL; |
4948 | char *defaultKernel = NULL; |
4949 | char *removeArgs = NULL; |
4950 | char *kernelInfo = NULL; |
4951 | char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
4952 | char *envPath = NULL; |
4953 | const char *chptr = NULL; |
4954 | struct configFileInfo *cfi = NULL; |
4955 | struct grubConfig *config; |
4956 | struct singleEntry *template = NULL; |
4957 | int copyDefault = 0, makeDefault = 0; |
4958 | int displayDefault = 0; |
4959 | int displayDefaultIndex = 0; |
4960 | int displayDefaultTitle = 0; |
4961 | int defaultIndex = -1; |
4962 | struct poptOption options[] = { |
4963 | {"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, |
4964 | _("add an entry for the specified kernel"), _("kernel-path")}, |
4965 | {"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, |
4966 | _("add an entry for the specified multiboot kernel"), NULL}, |
4967 | {"args", 0, POPT_ARG_STRING, &newKernelArgs, 0, |
4968 | _("default arguments for the new kernel or new arguments for " |
4969 | "kernel being updated"), _("args")}, |
4970 | {"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, |
4971 | _("default arguments for the new multiboot kernel or " |
4972 | "new arguments for multiboot kernel being updated"), NULL}, |
4973 | {"bad-image-okay", 0, 0, &badImageOkay, 0, |
4974 | _ |
4975 | ("don't sanity check images in boot entries (for testing only)"), |
4976 | NULL}, |
4977 | {"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, |
4978 | _ |
4979 | ("filesystem which contains /boot directory (for testing only)"), |
4980 | _("bootfs")}, |
4981 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
4982 | {"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
4983 | _("check which bootloader is installed on boot sector")}, |
4984 | #endif |
4985 | {"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, |
4986 | _("path to grub config file to update (\"-\" for stdin)"), |
4987 | _("path")}, |
4988 | {"copy-default", 0, 0, ©Default, 0, |
4989 | _("use the default boot entry as a template for the new entry " |
4990 | "being added; if the default is not a linux image, or if " |
4991 | "the kernel referenced by the default image does not exist, " |
4992 | "the first linux entry whose kernel does exist is used as the " |
4993 | "template"), NULL}, |
4994 | {"debug", 0, 0, &debug, 0, |
4995 | _("print debugging information for failures")}, |
4996 | {"default-kernel", 0, 0, &displayDefault, 0, |
4997 | _("display the path of the default kernel")}, |
4998 | {"default-index", 0, 0, &displayDefaultIndex, 0, |
4999 | _("display the index of the default kernel")}, |
5000 | {"default-title", 0, 0, &displayDefaultTitle, 0, |
5001 | _("display the title of the default kernel")}, |
5002 | {"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
5003 | _("device tree file for new stanza"), _("dtb-path")}, |
5004 | {"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
5005 | _("device tree directory for new stanza"), _("dtb-path")}, |
5006 | {"elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
5007 | _("configure elilo bootloader")}, |
5008 | {"efi", 0, POPT_ARG_NONE, &isEfi, 0, |
5009 | _("force grub2 stanzas to use efi")}, |
5010 | {"env", 0, POPT_ARG_STRING, &envPath, 0, |
5011 | _("path for environment data"), |
5012 | _("path")}, |
5013 | {"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
5014 | _("configure extlinux bootloader (from syslinux)")}, |
5015 | {"grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
5016 | _("configure grub bootloader")}, |
5017 | {"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
5018 | _("configure grub2 bootloader")}, |
5019 | {"info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
5020 | _("display boot information for specified kernel"), |
5021 | _("kernel-path")}, |
5022 | {"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, |
5023 | _("initrd image for the new kernel"), _("initrd-path")}, |
5024 | {"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
5025 | _ |
5026 | ("auxiliary initrd image for things other than the new kernel"), |
5027 | _("initrd-path")}, |
5028 | {"lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
5029 | _("configure lilo bootloader")}, |
5030 | {"make-default", 0, 0, &makeDefault, 0, |
5031 | _("make the newly added entry the default boot entry"), NULL}, |
5032 | {"output-file", 'o', POPT_ARG_STRING, &outputFile, 0, |
5033 | _("path to output updated config file (\"-\" for stdout)"), |
5034 | _("path")}, |
5035 | {"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, |
5036 | _("remove kernel arguments"), NULL}, |
5037 | {"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, |
5038 | _("remove multiboot kernel arguments"), NULL}, |
5039 | {"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, |
5040 | _("remove all entries for the specified kernel"), |
5041 | _("kernel-path")}, |
5042 | {"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, |
5043 | _("remove all entries for the specified multiboot kernel"), |
5044 | NULL}, |
5045 | {"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, |
5046 | _("make the first entry referencing the specified kernel " |
5047 | "the default"), _("kernel-path")}, |
5048 | {"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, |
5049 | _("make the given entry index the default entry"), |
5050 | _("entry-index")}, |
5051 | {"set-index", 0, POPT_ARG_INT, &newIndex, 0, |
5052 | _("use the given index when creating a new entry"), |
5053 | _("entry-index")}, |
5054 | {"silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
5055 | _("configure silo bootloader")}, |
5056 | {"title", 0, POPT_ARG_STRING, &newKernelTitle, 0, |
5057 | _("title to use for the new kernel entry"), _("entry-title")}, |
5058 | {"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, |
5059 | _("updated information for the specified kernel"), |
5060 | _("kernel-path")}, |
5061 | {"version", 'v', 0, NULL, 'v', |
5062 | _("print the version of this program and exit"), NULL}, |
5063 | {"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, |
5064 | _("configure yaboot bootloader")}, |
5065 | {"zipl", 0, POPT_ARG_NONE, &configureZipl, 0, |
5066 | _("configure zipl bootloader")}, |
5067 | POPT_AUTOHELP {0, 0, 0, 0, 0} |
5068 | }; |
5069 | |
5070 | useextlinuxmenu = 0; |
5071 | |
5072 | int i = 0; |
5073 | for (int j = 1; j < argc; j++) |
5074 | i += strlen(argv[j]) + 1; |
5075 | saved_command_line = malloc(i); |
5076 | if (!saved_command_line) { |
5077 | fprintf(stderr, "grubby: %m\n"); |
5078 | exit(1); |
5079 | } |
5080 | saved_command_line[0] = '\0'; |
5081 | for (int j = 1; j < argc; j++) { |
5082 | strcat(saved_command_line, argv[j]); |
5083 | strncat(saved_command_line, j == argc - 1 ? "" : " ", 1); |
5084 | } |
5085 | |
5086 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
5087 | poptReadDefaultConfig(optCon, 1); |
5088 | |
5089 | while ((arg = poptGetNextOpt(optCon)) >= 0) { |
5090 | switch (arg) { |
5091 | case 'v': |
5092 | printf("grubby version %s\n", VERSION); |
5093 | exit(0); |
5094 | break; |
5095 | case 'i': |
5096 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { |
5097 | extraInitrds[extraInitrdCount++] = |
5098 | strdup(poptGetOptArg(optCon)); |
5099 | } else { |
5100 | fprintf(stderr, |
5101 | _ |
5102 | ("grubby: extra initrd maximum is %d\n"), |
5103 | extraInitrdCount); |
5104 | return 1; |
5105 | } |
5106 | break; |
5107 | } |
5108 | } |
5109 | |
5110 | if (arg < -1) { |
5111 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), |
5112 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), |
5113 | poptStrerror(arg)); |
5114 | return 1; |
5115 | } |
5116 | |
5117 | if ((chptr = poptGetArg(optCon))) { |
5118 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); |
5119 | return 1; |
5120 | } |
5121 | |
5122 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
5123 | configureYaboot + configureSilo + configureZipl + |
5124 | configureExtLinux) > 1) { |
5125 | fprintf(stderr, |
5126 | _("grubby: cannot specify multiple bootloaders\n")); |
5127 | return 1; |
5128 | } else if (bootloaderProbe && grubConfig) { |
5129 | fprintf(stderr, |
5130 | _ |
5131 | ("grubby: cannot specify config file with --bootloader-probe\n")); |
5132 | return 1; |
5133 | } else if (configureGrub2) { |
5134 | cfi = &grub2ConfigType; |
5135 | if (envPath) |
5136 | cfi->envFile = envPath; |
5137 | } else if (configureLilo) { |
5138 | cfi = &liloConfigType; |
5139 | } else if (configureGrub) { |
5140 | cfi = &grubConfigType; |
5141 | } else if (configureELilo) { |
5142 | cfi = &eliloConfigType; |
5143 | } else if (configureYaboot) { |
5144 | cfi = &yabootConfigType; |
5145 | } else if (configureSilo) { |
5146 | cfi = &siloConfigType; |
5147 | } else if (configureZipl) { |
5148 | cfi = &ziplConfigType; |
5149 | } else if (configureExtLinux) { |
5150 | cfi = &extlinuxConfigType; |
5151 | useextlinuxmenu = 1; |
5152 | } |
5153 | |
5154 | if (!cfi) { |
5155 | if (grub2FindConfig(&grub2ConfigType)) { |
5156 | cfi = &grub2ConfigType; |
5157 | if (envPath) |
5158 | cfi->envFile = envPath; |
5159 | } else |
5160 | #ifdef __ia64__ |
5161 | cfi = &eliloConfigType; |
5162 | #elif __powerpc__ |
5163 | cfi = &yabootConfigType; |
5164 | #elif __sparc__ |
5165 | cfi = &siloConfigType; |
5166 | #elif __s390__ |
5167 | cfi = &ziplConfigType; |
5168 | #elif __s390x__ |
5169 | cfi = &ziplConfigtype; |
5170 | #else |
5171 | cfi = &grubConfigType; |
5172 | #endif |
5173 | } |
5174 | |
5175 | if (!grubConfig) { |
5176 | if (cfi->findConfig) |
5177 | grubConfig = cfi->findConfig(cfi); |
5178 | if (!grubConfig) |
5179 | grubConfig = cfi->defaultConfig; |
5180 | } |
5181 | |
5182 | if (bootloaderProbe && (displayDefault || kernelInfo || |
5183 | newKernelPath || removeKernelPath || makeDefault |
5184 | || defaultKernel || displayDefaultIndex |
5185 | || displayDefaultTitle |
5186 | || (defaultIndex >= 0))) { |
5187 | fprintf(stderr, |
5188 | _("grubby: --bootloader-probe may not be used with " |
5189 | "specified option")); |
5190 | return 1; |
5191 | } |
5192 | |
5193 | if ((displayDefault || kernelInfo) && (newKernelPath || |
5194 | removeKernelPath)) { |
5195 | fprintf(stderr, _("grubby: --default-kernel and --info may not " |
5196 | "be used when adding or removing kernels\n")); |
5197 | return 1; |
5198 | } |
5199 | |
5200 | if (newKernelPath && !newKernelTitle) { |
5201 | fprintf(stderr, _("grubby: kernel title must be specified\n")); |
5202 | return 1; |
5203 | } else if (!newKernelPath && (copyDefault || |
5204 | (newKernelInitrd && !updateKernelPath) || |
5205 | makeDefault || extraInitrdCount > 0)) { |
5206 | fprintf(stderr, _("grubby: kernel path expected\n")); |
5207 | return 1; |
5208 | } |
5209 | |
5210 | if (newKernelPath && updateKernelPath) { |
5211 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" |
5212 | "not be used together")); |
5213 | return 1; |
5214 | } |
5215 | |
5216 | if (makeDefault && defaultKernel) { |
5217 | fprintf(stderr, _("grubby: --make-default and --default-kernel " |
5218 | "may not be used together\n")); |
5219 | return 1; |
5220 | } else if (defaultKernel && removeKernelPath && |
5221 | !strcmp(defaultKernel, removeKernelPath)) { |
5222 | fprintf(stderr, |
5223 | _("grubby: cannot make removed kernel the default\n")); |
5224 | return 1; |
5225 | } else if (defaultKernel && newKernelPath && |
5226 | !strcmp(defaultKernel, newKernelPath)) { |
5227 | makeDefault = 1; |
5228 | defaultKernel = NULL; |
5229 | } else if (defaultKernel && (defaultIndex >= 0)) { |
5230 | fprintf(stderr, |
5231 | _("grubby: --set-default and --set-default-index " |
5232 | "may not be used together\n")); |
5233 | return 1; |
5234 | } |
5235 | |
5236 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
5237 | fprintf(stderr, |
5238 | _("grubby: output file must be specified if stdin " |
5239 | "is used\n")); |
5240 | return 1; |
5241 | } |
5242 | |
5243 | if (!removeKernelPath && !newKernelPath && !displayDefault |
5244 | && !defaultKernel && !kernelInfo && !bootloaderProbe |
5245 | && !updateKernelPath && !removeMBKernel && !displayDefaultIndex |
5246 | && !displayDefaultTitle && (defaultIndex == -1)) { |
5247 | fprintf(stderr, _("grubby: no action specified\n")); |
5248 | return 1; |
5249 | } |
5250 | |
5251 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; |
5252 | |
5253 | if (cfi->needsBootPrefix) { |
5254 | if (!bootPrefix) { |
5255 | bootPrefix = findBootPrefix(); |
5256 | if (!bootPrefix) |
5257 | return 1; |
5258 | } else { |
5259 | /* this shouldn't end with a / */ |
5260 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') |
5261 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; |
5262 | } |
5263 | } else { |
5264 | bootPrefix = ""; |
5265 | } |
5266 | |
5267 | if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) { |
5268 | fprintf(stderr, |
5269 | _("grubby: %s doesn't allow multiple initrds\n"), |
5270 | cfi->defaultConfig); |
5271 | return 1; |
5272 | } |
5273 | |
5274 | if (bootloaderProbe) { |
5275 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; |
5276 | struct grubConfig *lconfig, *gconfig, *yconfig, *econfig; |
5277 | |
5278 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
5279 | if (grub2config) { |
5280 | gconfig = readConfig(grub2config, &grub2ConfigType); |
5281 | if (!gconfig) |
5282 | gr2c = 1; |
5283 | else |
5284 | gr2c = checkForGrub2(gconfig); |
5285 | } |
5286 | |
5287 | const char *grubconfig = grubFindConfig(&grubConfigType); |
5288 | if (!access(grubconfig, F_OK)) { |
5289 | gconfig = readConfig(grubconfig, &grubConfigType); |
5290 | if (!gconfig) |
5291 | grc = 1; |
5292 | else |
5293 | grc = checkForGrub(gconfig); |
5294 | } |
5295 | |
5296 | if (!access(liloConfigType.defaultConfig, F_OK)) { |
5297 | lconfig = |
5298 | readConfig(liloConfigType.defaultConfig, |
5299 | &liloConfigType); |
5300 | if (!lconfig) |
5301 | lrc = 1; |
5302 | else |
5303 | lrc = checkForLilo(lconfig); |
5304 | } |
5305 | |
5306 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
5307 | econfig = readConfig(eliloConfigType.defaultConfig, |
5308 | &eliloConfigType); |
5309 | if (!econfig) |
5310 | erc = 1; |
5311 | else |
5312 | erc = checkForElilo(econfig); |
5313 | } |
5314 | |
5315 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
5316 | lconfig = |
5317 | readConfig(extlinuxConfigType.defaultConfig, |
5318 | &extlinuxConfigType); |
5319 | if (!lconfig) |
5320 | extrc = 1; |
5321 | else |
5322 | extrc = checkForExtLinux(lconfig); |
5323 | } |
5324 | |
5325 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
5326 | yconfig = readConfig(yabootConfigType.defaultConfig, |
5327 | &yabootConfigType); |
5328 | if (!yconfig) |
5329 | yrc = 1; |
5330 | else |
5331 | yrc = checkForYaboot(yconfig); |
5332 | } |
5333 | |
5334 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 |
5335 | || erc == 1) |
5336 | return 1; |
5337 | |
5338 | if (lrc == 2) |
5339 | printf("lilo\n"); |
5340 | if (gr2c == 2) |
5341 | printf("grub2\n"); |
5342 | if (grc == 2) |
5343 | printf("grub\n"); |
5344 | if (extrc == 2) |
5345 | printf("extlinux\n"); |
5346 | if (yrc == 2) |
5347 | printf("yaboot\n"); |
5348 | if (erc == 2) |
5349 | printf("elilo\n"); |
5350 | |
5351 | return 0; |
5352 | } |
5353 | |
5354 | if (grubConfig == NULL) { |
5355 | printf("Could not find bootloader configuration file.\n"); |
5356 | exit(1); |
5357 | } |
5358 | |
5359 | config = readConfig(grubConfig, cfi); |
5360 | if (!config) |
5361 | return 1; |
5362 | |
5363 | if (displayDefault) { |
5364 | struct singleLine *line; |
5365 | struct singleEntry *entry; |
5366 | char *rootspec; |
5367 | |
5368 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5369 | return 0; |
5370 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5371 | cfi->defaultIsSaved) |
5372 | config->defaultImage = FIRST_ENTRY_INDEX; |
5373 | entry = findEntryByIndex(config, config->defaultImage); |
5374 | if (!entry) |
5375 | return 0; |
5376 | if (!suitableImage(entry, bootPrefix, 0, flags)) |
5377 | return 0; |
5378 | |
5379 | line = |
5380 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
5381 | LT_KERNEL_16, entry->lines); |
5382 | if (!line) |
5383 | return 0; |
5384 | |
5385 | rootspec = getRootSpecifier(line->elements[1].item); |
5386 | printf("%s%s\n", bootPrefix, line->elements[1].item + |
5387 | ((rootspec != NULL) ? strlen(rootspec) : 0)); |
5388 | |
5389 | return 0; |
5390 | |
5391 | } else if (displayDefaultTitle) { |
5392 | struct singleLine *line; |
5393 | struct singleEntry *entry; |
5394 | |
5395 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5396 | return 0; |
5397 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5398 | cfi->defaultIsSaved) |
5399 | config->defaultImage = FIRST_ENTRY_INDEX; |
5400 | entry = findEntryByIndex(config, config->defaultImage); |
5401 | if (!entry) |
5402 | return 0; |
5403 | |
5404 | if (!configureGrub2) { |
5405 | char *title; |
5406 | line = getLineByType(LT_TITLE, entry->lines); |
5407 | if (!line) |
5408 | return 0; |
5409 | title = extractTitle(config, line); |
5410 | if (!title) |
5411 | return 0; |
5412 | printf("%s\n", title); |
5413 | free(title); |
5414 | } else { |
5415 | char *title; |
5416 | |
5417 | dbgPrintf |
5418 | ("This is GRUB2, default title is embeded in menuentry\n"); |
5419 | line = getLineByType(LT_MENUENTRY, entry->lines); |
5420 | if (!line) |
5421 | return 0; |
5422 | title = grub2ExtractTitle(line); |
5423 | if (title) |
5424 | printf("%s\n", title); |
5425 | } |
5426 | return 0; |
5427 | |
5428 | } else if (displayDefaultIndex) { |
5429 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5430 | return 0; |
5431 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5432 | cfi->defaultIsSaved) |
5433 | config->defaultImage = FIRST_ENTRY_INDEX; |
5434 | printf("%i\n", config->defaultImage); |
5435 | return 0; |
5436 | |
5437 | } else if (kernelInfo) |
5438 | return displayInfo(config, kernelInfo, bootPrefix); |
5439 | |
5440 | if (copyDefault) { |
5441 | template = findTemplate(config, bootPrefix, NULL, 0, flags); |
5442 | if (!template) |
5443 | return 1; |
5444 | } |
5445 | |
5446 | markRemovedImage(config, removeKernelPath, bootPrefix); |
5447 | markRemovedImage(config, removeMBKernel, bootPrefix); |
5448 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, |
5449 | makeDefault, bootPrefix, flags, defaultIndex, |
5450 | newIndex); |
5451 | setFallbackImage(config, newKernelPath != NULL); |
5452 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, |
5453 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) |
5454 | return 1; |
5455 | if (updateKernelPath && newKernelInitrd) { |
5456 | if (newMBKernel) { |
5457 | if (addMBInitrd(config, newMBKernel, updateKernelPath, |
5458 | bootPrefix, newKernelInitrd, |
5459 | newKernelTitle)) |
5460 | return 1; |
5461 | } else { |
5462 | if (updateInitrd(config, updateKernelPath, bootPrefix, |
5463 | newKernelInitrd, newKernelTitle)) |
5464 | return 1; |
5465 | } |
5466 | } |
5467 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
5468 | newKernelTitle, newKernelArgs, newKernelInitrd, |
5469 | (const char **)extraInitrds, extraInitrdCount, |
5470 | newMBKernel, newMBKernelArgs, newDevTreePath, |
5471 | newIndex)) |
5472 | return 1; |
5473 | |
5474 | if (numEntries(config) == 0) { |
5475 | fprintf(stderr, |
5476 | _("grubby: doing this would leave no kernel entries. " |
5477 | "Not writing out new config.\n")); |
5478 | return 1; |
5479 | } |
5480 | |
5481 | if (!outputFile) |
5482 | outputFile = (char *)grubConfig; |
5483 | |
5484 | return writeConfig(config, outputFile, bootPrefix); |
5485 | } |