Contents of /trunk/grubby/grubby.c
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Tue Jun 27 14:45:42 2017 UTC (7 years, 3 months ago) by niro
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File size: 134084 byte(s)
Tue Jun 27 14:45:42 2017 UTC (7 years, 3 months ago) by niro
File MIME type: text/plain
File size: 134084 byte(s)
Fix initial saved_entry read issue (#1285601)
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 | |
1796 | if (!strcmp(outName, "-")) { |
1797 | out = stdout; |
1798 | tmpOutName = NULL; |
1799 | } else { |
1800 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { |
1801 | char *buf; |
1802 | int len = 256; |
1803 | int rc; |
1804 | |
1805 | /* most likely the symlink is relative, so change our |
1806 | directory to the dir of the symlink */ |
1807 | char *dir = strdupa(outName); |
1808 | rc = chdir(dirname(dir)); |
1809 | do { |
1810 | buf = alloca(len + 1); |
1811 | rc = readlink(basename(outName), buf, len); |
1812 | if (rc == len) |
1813 | len += 256; |
1814 | } while (rc == len); |
1815 | |
1816 | if (rc < 0) { |
1817 | fprintf(stderr, |
1818 | _ |
1819 | ("grubby: error readlink link %s: %s\n"), |
1820 | outName, strerror(errno)); |
1821 | return 1; |
1822 | } |
1823 | |
1824 | outName = buf; |
1825 | outName[rc] = '\0'; |
1826 | } |
1827 | |
1828 | tmpOutName = alloca(strlen(outName) + 2); |
1829 | sprintf(tmpOutName, "%s-", outName); |
1830 | out = fopen(tmpOutName, "w"); |
1831 | if (!out) { |
1832 | fprintf(stderr, _("grubby: error creating %s: %s\n"), |
1833 | tmpOutName, strerror(errno)); |
1834 | return 1; |
1835 | } |
1836 | |
1837 | if (!stat(outName, &sb)) { |
1838 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { |
1839 | fprintf(stderr, |
1840 | _ |
1841 | ("grubby: error setting perms on %s: %s\n"), |
1842 | tmpOutName, strerror(errno)); |
1843 | fclose(out); |
1844 | unlink(tmpOutName); |
1845 | return 1; |
1846 | } |
1847 | } |
1848 | } |
1849 | |
1850 | line = cfg->theLines; |
1851 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1852 | while (line) { |
1853 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1854 | line->numElements == 3 && |
1855 | !strcmp(line->elements[1].item, defaultKw->key) && |
1856 | !is_special_grub2_variable(line->elements[2].item)) { |
1857 | writeDefault(out, line->indent, |
1858 | line->elements[0].indent, cfg); |
1859 | needs &= ~MAIN_DEFAULT; |
1860 | } else if (line->type == LT_DEFAULT) { |
1861 | writeDefault(out, line->indent, |
1862 | line->elements[0].indent, cfg); |
1863 | needs &= ~MAIN_DEFAULT; |
1864 | } else if (line->type == LT_FALLBACK) { |
1865 | if (cfg->fallbackImage > -1) |
1866 | fprintf(out, "%s%s%s%d\n", line->indent, |
1867 | line->elements[0].item, |
1868 | line->elements[0].indent, |
1869 | cfg->fallbackImage); |
1870 | } else { |
1871 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1872 | fprintf(stderr, |
1873 | _("grubby: error writing %s: %s\n"), |
1874 | tmpOutName, strerror(errno)); |
1875 | fclose(out); |
1876 | unlink(tmpOutName); |
1877 | return 1; |
1878 | } |
1879 | } |
1880 | |
1881 | line = line->next; |
1882 | } |
1883 | |
1884 | if (needs & MAIN_DEFAULT) { |
1885 | writeDefault(out, cfg->primaryIndent, "=", cfg); |
1886 | needs &= ~MAIN_DEFAULT; |
1887 | } |
1888 | |
1889 | i = 0; |
1890 | while ((entry = findEntryByIndex(cfg, i++))) { |
1891 | if (entry->skip) |
1892 | continue; |
1893 | |
1894 | line = entry->lines; |
1895 | while (line) { |
1896 | if (lineWrite(out, line, cfg->cfi) == -1) { |
1897 | fprintf(stderr, |
1898 | _("grubby: error writing %s: %s\n"), |
1899 | tmpOutName, strerror(errno)); |
1900 | fclose(out); |
1901 | unlink(tmpOutName); |
1902 | return 1; |
1903 | } |
1904 | line = line->next; |
1905 | } |
1906 | } |
1907 | |
1908 | if (tmpOutName) { |
1909 | if (rename(tmpOutName, outName)) { |
1910 | fprintf(stderr, |
1911 | _("grubby: error moving %s to %s: %s\n"), |
1912 | tmpOutName, outName, strerror(errno)); |
1913 | unlink(outName); |
1914 | return 1; |
1915 | } |
1916 | } |
1917 | |
1918 | return 0; |
1919 | } |
1920 | |
1921 | static int numEntries(struct grubConfig *cfg) |
1922 | { |
1923 | int i = 0; |
1924 | struct singleEntry *entry; |
1925 | |
1926 | entry = cfg->entries; |
1927 | while (entry) { |
1928 | if (!entry->skip) |
1929 | i++; |
1930 | entry = entry->next; |
1931 | } |
1932 | return i; |
1933 | } |
1934 | |
1935 | static char *findDiskForRoot() |
1936 | { |
1937 | int fd; |
1938 | char buf[65536]; |
1939 | char *devname; |
1940 | char *chptr; |
1941 | int rc; |
1942 | |
1943 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { |
1944 | fprintf(stderr, "grubby: failed to open %s: %s\n", |
1945 | _PATH_MOUNTED, strerror(errno)); |
1946 | return NULL; |
1947 | } |
1948 | |
1949 | rc = read(fd, buf, sizeof(buf) - 1); |
1950 | if (rc <= 0) { |
1951 | fprintf(stderr, "grubby: failed to read %s: %s\n", |
1952 | _PATH_MOUNTED, strerror(errno)); |
1953 | close(fd); |
1954 | return NULL; |
1955 | } |
1956 | close(fd); |
1957 | buf[rc] = '\0'; |
1958 | chptr = buf; |
1959 | |
1960 | char *foundanswer = NULL; |
1961 | |
1962 | while (chptr && chptr != buf + rc) { |
1963 | devname = chptr; |
1964 | |
1965 | /* |
1966 | * The first column of a mtab entry is the device, but if the |
1967 | * entry is a special device it won't start with /, so move |
1968 | * on to the next line. |
1969 | */ |
1970 | if (*devname != '/') { |
1971 | chptr = strchr(chptr, '\n'); |
1972 | if (chptr) |
1973 | chptr++; |
1974 | continue; |
1975 | } |
1976 | |
1977 | /* Seek to the next space */ |
1978 | chptr = strchr(chptr, ' '); |
1979 | if (!chptr) { |
1980 | fprintf(stderr, "grubby: error parsing %s: %s\n", |
1981 | _PATH_MOUNTED, strerror(errno)); |
1982 | return NULL; |
1983 | } |
1984 | |
1985 | /* |
1986 | * The second column of a mtab entry is the mount point, we |
1987 | * are looking for '/' obviously. |
1988 | */ |
1989 | if (*(++chptr) == '/' && *(++chptr) == ' ') { |
1990 | /* remember the last / entry in mtab */ |
1991 | foundanswer = devname; |
1992 | } |
1993 | |
1994 | /* Next line */ |
1995 | chptr = strchr(chptr, '\n'); |
1996 | if (chptr) |
1997 | chptr++; |
1998 | } |
1999 | |
2000 | /* Return the last / entry found */ |
2001 | if (foundanswer) { |
2002 | chptr = strchr(foundanswer, ' '); |
2003 | *chptr = '\0'; |
2004 | return strdup(foundanswer); |
2005 | } |
2006 | |
2007 | return NULL; |
2008 | } |
2009 | |
2010 | void printEntry(struct singleEntry *entry, FILE * f) |
2011 | { |
2012 | int i; |
2013 | struct singleLine *line; |
2014 | |
2015 | for (line = entry->lines; line; line = line->next) { |
2016 | log_message(f, "DBG: %s", line->indent); |
2017 | for (i = 0; i < line->numElements; i++) { |
2018 | /* Need to handle this, because we strip the quotes from |
2019 | * menuentry when read it. */ |
2020 | if (line->type == LT_MENUENTRY && i == 1) { |
2021 | if (!isquote(*line->elements[i].item)) |
2022 | log_message(f, "\'%s\'", |
2023 | line->elements[i].item); |
2024 | else |
2025 | log_message(f, "%s", |
2026 | line->elements[i].item); |
2027 | log_message(f, "%s", line->elements[i].indent); |
2028 | |
2029 | continue; |
2030 | } |
2031 | |
2032 | log_message(f, "%s%s", |
2033 | line->elements[i].item, |
2034 | line->elements[i].indent); |
2035 | } |
2036 | log_message(f, "\n"); |
2037 | } |
2038 | } |
2039 | |
2040 | void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt, |
2041 | ...) |
2042 | { |
2043 | static int once; |
2044 | va_list argp, argq; |
2045 | |
2046 | va_start(argp, fmt); |
2047 | |
2048 | va_copy(argq, argp); |
2049 | if (!once) { |
2050 | log_time(NULL); |
2051 | log_message(NULL, "command line: %s\n", saved_command_line); |
2052 | } |
2053 | log_message(NULL, "DBG: Image entry %s: ", |
2054 | okay ? "succeeded" : "failed"); |
2055 | log_vmessage(NULL, fmt, argq); |
2056 | |
2057 | printEntry(entry, NULL); |
2058 | va_end(argq); |
2059 | |
2060 | if (!debug) { |
2061 | once = 1; |
2062 | va_end(argp); |
2063 | return; |
2064 | } |
2065 | |
2066 | if (okay) { |
2067 | va_end(argp); |
2068 | return; |
2069 | } |
2070 | |
2071 | if (!once) |
2072 | log_message(stderr, "DBG: command line: %s\n", |
2073 | saved_command_line); |
2074 | once = 1; |
2075 | fprintf(stderr, "DBG: Image entry failed: "); |
2076 | vfprintf(stderr, fmt, argp); |
2077 | printEntry(entry, stderr); |
2078 | va_end(argp); |
2079 | } |
2080 | |
2081 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
2082 | |
2083 | static int endswith(const char *s, char c) |
2084 | { |
2085 | int slen; |
2086 | |
2087 | if (!s || !s[0]) |
2088 | return 0; |
2089 | slen = strlen(s) - 1; |
2090 | |
2091 | return s[slen] == c; |
2092 | } |
2093 | |
2094 | int suitableImage(struct singleEntry *entry, const char *bootPrefix, |
2095 | int skipRemoved, int flags) |
2096 | { |
2097 | struct singleLine *line; |
2098 | char *fullName; |
2099 | int i; |
2100 | char *dev; |
2101 | char *rootspec; |
2102 | char *rootdev; |
2103 | |
2104 | if (skipRemoved && entry->skip) { |
2105 | notSuitablePrintf(entry, 0, "marked to skip\n"); |
2106 | return 0; |
2107 | } |
2108 | |
2109 | line = |
2110 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2111 | entry->lines); |
2112 | if (!line) { |
2113 | notSuitablePrintf(entry, 0, "no line found\n"); |
2114 | return 0; |
2115 | } |
2116 | if (line->numElements < 2) { |
2117 | notSuitablePrintf(entry, 0, "line has only %d elements\n", |
2118 | line->numElements); |
2119 | return 0; |
2120 | } |
2121 | |
2122 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
2123 | notSuitablePrintf(entry, 1, "\n"); |
2124 | return 1; |
2125 | } |
2126 | |
2127 | fullName = alloca(strlen(bootPrefix) + |
2128 | strlen(line->elements[1].item) + 1); |
2129 | rootspec = getRootSpecifier(line->elements[1].item); |
2130 | int rootspec_offset = rootspec ? strlen(rootspec) : 0; |
2131 | int hasslash = endswith(bootPrefix, '/') || |
2132 | beginswith(line->elements[1].item + rootspec_offset, '/'); |
2133 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", |
2134 | line->elements[1].item + rootspec_offset); |
2135 | if (access(fullName, R_OK)) { |
2136 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); |
2137 | return 0; |
2138 | } |
2139 | for (i = 2; i < line->numElements; i++) |
2140 | if (!strncasecmp(line->elements[i].item, "root=", 5)) |
2141 | break; |
2142 | if (i < line->numElements) { |
2143 | dev = line->elements[i].item + 5; |
2144 | } else { |
2145 | /* look for a lilo style LT_ROOT line */ |
2146 | line = getLineByType(LT_ROOT, entry->lines); |
2147 | |
2148 | if (line && line->numElements >= 2) { |
2149 | dev = line->elements[1].item; |
2150 | } else { |
2151 | /* didn't succeed in finding a LT_ROOT, let's try |
2152 | * LT_KERNELARGS. grub+multiboot uses LT_MBMODULE |
2153 | * for the args, so check that too. |
2154 | */ |
2155 | line = |
2156 | getLineByType(LT_KERNELARGS | LT_MBMODULE, |
2157 | entry->lines); |
2158 | |
2159 | /* failed to find one */ |
2160 | if (!line) { |
2161 | notSuitablePrintf(entry, 0, "no line found\n"); |
2162 | return 0; |
2163 | } |
2164 | |
2165 | for (i = 1; i < line->numElements; i++) |
2166 | if (!strncasecmp |
2167 | (line->elements[i].item, "root=", 5)) |
2168 | break; |
2169 | if (i < line->numElements) |
2170 | dev = line->elements[i].item + 5; |
2171 | else { |
2172 | notSuitablePrintf(entry, 0, |
2173 | "no root= entry found\n"); |
2174 | /* it failed too... can't find root= */ |
2175 | return 0; |
2176 | } |
2177 | } |
2178 | } |
2179 | |
2180 | dev = getpathbyspec(dev); |
2181 | if (!getpathbyspec(dev)) { |
2182 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", |
2183 | dev); |
2184 | return 0; |
2185 | } else |
2186 | dev = getpathbyspec(dev); |
2187 | |
2188 | rootdev = findDiskForRoot(); |
2189 | if (!rootdev) { |
2190 | notSuitablePrintf(entry, 0, "can't find root device\n"); |
2191 | return 0; |
2192 | } |
2193 | |
2194 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
2195 | notSuitablePrintf(entry, 0, |
2196 | "uuid missing: rootdev %s, dev %s\n", |
2197 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2198 | free(rootdev); |
2199 | return 0; |
2200 | } |
2201 | |
2202 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
2203 | notSuitablePrintf(entry, 0, |
2204 | "uuid mismatch: rootdev %s, dev %s\n", |
2205 | getuuidbydev(rootdev), getuuidbydev(dev)); |
2206 | free(rootdev); |
2207 | return 0; |
2208 | } |
2209 | |
2210 | free(rootdev); |
2211 | notSuitablePrintf(entry, 1, "\n"); |
2212 | |
2213 | return 1; |
2214 | } |
2215 | |
2216 | /* returns the first match on or after the one pointed to by index (if index |
2217 | is not NULL) which is not marked as skip */ |
2218 | struct singleEntry *findEntryByPath(struct grubConfig *config, |
2219 | const char *kernel, const char *prefix, |
2220 | int *index) |
2221 | { |
2222 | struct singleEntry *entry = NULL; |
2223 | struct singleLine *line; |
2224 | int i; |
2225 | char *chptr; |
2226 | char *rootspec = NULL; |
2227 | enum lineType_e checkType = LT_KERNEL; |
2228 | |
2229 | if (isdigit(*kernel)) { |
2230 | int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); |
2231 | |
2232 | i = 0; |
2233 | indexVars[i] = strtol(kernel, &chptr, 10); |
2234 | while (*chptr == ',') { |
2235 | i++; |
2236 | kernel = chptr + 1; |
2237 | indexVars[i] = strtol(kernel, &chptr, 10); |
2238 | } |
2239 | |
2240 | if (*chptr) { |
2241 | /* can't parse it, bail */ |
2242 | return NULL; |
2243 | } |
2244 | |
2245 | indexVars[i + 1] = -1; |
2246 | |
2247 | i = 0; |
2248 | if (index) { |
2249 | while (i < *index) { |
2250 | i++; |
2251 | if (indexVars[i] == -1) |
2252 | return NULL; |
2253 | } |
2254 | } |
2255 | |
2256 | entry = findEntryByIndex(config, indexVars[i]); |
2257 | if (!entry) |
2258 | return NULL; |
2259 | |
2260 | line = |
2261 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
2262 | LT_KERNEL_16, entry->lines); |
2263 | if (!line) |
2264 | return NULL; |
2265 | |
2266 | if (index) |
2267 | *index = indexVars[i]; |
2268 | return entry; |
2269 | } |
2270 | |
2271 | if (!strcmp(kernel, "DEFAULT")) { |
2272 | if (index && *index > config->defaultImage) { |
2273 | entry = NULL; |
2274 | } else { |
2275 | entry = findEntryByIndex(config, config->defaultImage); |
2276 | if (entry && entry->skip) |
2277 | entry = NULL; |
2278 | else if (index) |
2279 | *index = config->defaultImage; |
2280 | } |
2281 | } else if (!strcmp(kernel, "ALL")) { |
2282 | if (index) |
2283 | i = *index; |
2284 | else |
2285 | i = 0; |
2286 | |
2287 | while ((entry = findEntryByIndex(config, i))) { |
2288 | if (!entry->skip) |
2289 | break; |
2290 | i++; |
2291 | } |
2292 | |
2293 | if (entry && index) |
2294 | *index = i; |
2295 | } else { |
2296 | if (index) |
2297 | i = *index; |
2298 | else |
2299 | i = 0; |
2300 | |
2301 | if (!strncmp(kernel, "TITLE=", 6)) { |
2302 | prefix = ""; |
2303 | checkType = LT_TITLE | LT_MENUENTRY; |
2304 | kernel += 6; |
2305 | } |
2306 | |
2307 | for (entry = findEntryByIndex(config, i); entry; |
2308 | entry = entry->next, i++) { |
2309 | if (entry->skip) |
2310 | continue; |
2311 | |
2312 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", |
2313 | checkType, kernel, entry); |
2314 | |
2315 | /* check all the lines matching checkType */ |
2316 | for (line = entry->lines; line; line = line->next) { |
2317 | enum lineType_e ct = checkType; |
2318 | if (entry->multiboot && checkType == LT_KERNEL) |
2319 | ct = LT_KERNEL | LT_KERNEL_EFI | |
2320 | LT_MBMODULE | LT_HYPER | |
2321 | LT_KERNEL_16; |
2322 | else if (checkType & LT_KERNEL) |
2323 | ct = checkType | LT_KERNEL_EFI | |
2324 | LT_KERNEL_16; |
2325 | line = getLineByType(ct, line); |
2326 | if (!line) |
2327 | break; /* not found in this entry */ |
2328 | |
2329 | if (line && line->type != LT_MENUENTRY && |
2330 | line->numElements >= 2) { |
2331 | rootspec = |
2332 | getRootSpecifier(line->elements[1]. |
2333 | item); |
2334 | if (!strcmp |
2335 | (line->elements[1].item + |
2336 | ((rootspec != |
2337 | NULL) ? strlen(rootspec) : 0), |
2338 | kernel + strlen(prefix))) |
2339 | break; |
2340 | } |
2341 | if (line->type == LT_MENUENTRY && |
2342 | !strcmp(line->elements[1].item, kernel)) |
2343 | break; |
2344 | } |
2345 | |
2346 | /* make sure this entry has a kernel identifier; this skips |
2347 | * non-Linux boot entries (could find netbsd etc, though, which is |
2348 | * unfortunate) |
2349 | */ |
2350 | if (line |
2351 | && getLineByType(LT_KERNEL | LT_HYPER | |
2352 | LT_KERNEL_EFI | LT_KERNEL_16, |
2353 | entry->lines)) |
2354 | break; /* found 'im! */ |
2355 | } |
2356 | |
2357 | if (index) |
2358 | *index = i; |
2359 | } |
2360 | |
2361 | return entry; |
2362 | } |
2363 | |
2364 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
2365 | int *index) |
2366 | { |
2367 | struct singleEntry *entry; |
2368 | struct singleLine *line; |
2369 | int i; |
2370 | char *newtitle; |
2371 | |
2372 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { |
2373 | if (index && i < *index) |
2374 | continue; |
2375 | line = getLineByType(LT_TITLE, entry->lines); |
2376 | if (!line) |
2377 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2378 | if (!line) |
2379 | continue; |
2380 | newtitle = grub2ExtractTitle(line); |
2381 | if (!newtitle) |
2382 | continue; |
2383 | if (!strcmp(title, newtitle)) |
2384 | break; |
2385 | } |
2386 | |
2387 | if (!entry) |
2388 | return NULL; |
2389 | |
2390 | if (index) |
2391 | *index = i; |
2392 | return entry; |
2393 | } |
2394 | |
2395 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index) |
2396 | { |
2397 | struct singleEntry *entry; |
2398 | |
2399 | entry = cfg->entries; |
2400 | while (index && entry) { |
2401 | entry = entry->next; |
2402 | index--; |
2403 | } |
2404 | |
2405 | return entry; |
2406 | } |
2407 | |
2408 | /* Find a good template to use for the new kernel. An entry is |
2409 | * good if the kernel and mkinitrd exist (even if the entry |
2410 | * is going to be removed). Try and use the default entry, but |
2411 | * if that doesn't work just take the first. If we can't find one, |
2412 | * bail. */ |
2413 | struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix, |
2414 | int *indexPtr, int skipRemoved, int flags) |
2415 | { |
2416 | struct singleEntry *entry, *entry2; |
2417 | int index; |
2418 | |
2419 | if (cfg->cfi->defaultIsSaved) { |
2420 | if (cfg->cfi->getEnv) { |
2421 | char *defTitle = |
2422 | cfg->cfi->getEnv(cfg->cfi, "saved_entry"); |
2423 | if (defTitle) { |
2424 | int index = 0; |
2425 | if (isnumber(defTitle)) { |
2426 | index = atoi(defTitle); |
2427 | entry = findEntryByIndex(cfg, index); |
2428 | } else { |
2429 | entry = |
2430 | findEntryByTitle(cfg, defTitle, |
2431 | &index); |
2432 | } |
2433 | if (entry |
2434 | && suitableImage(entry, prefix, skipRemoved, |
2435 | flags)) { |
2436 | cfg->defaultImage = index; |
2437 | if (indexPtr) |
2438 | *indexPtr = index; |
2439 | return entry; |
2440 | } |
2441 | } |
2442 | } |
2443 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
2444 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2445 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { |
2446 | if (indexPtr) |
2447 | *indexPtr = cfg->defaultImage; |
2448 | return entry; |
2449 | } |
2450 | } |
2451 | |
2452 | index = 0; |
2453 | while ((entry = findEntryByIndex(cfg, index))) { |
2454 | if (suitableImage(entry, prefix, skipRemoved, flags)) { |
2455 | int j, unmodifiedIndex; |
2456 | |
2457 | unmodifiedIndex = index; |
2458 | |
2459 | for (j = 0; j < unmodifiedIndex; j++) { |
2460 | entry2 = findEntryByIndex(cfg, j); |
2461 | if (entry2->skip) |
2462 | index--; |
2463 | } |
2464 | if (indexPtr) |
2465 | *indexPtr = index; |
2466 | |
2467 | return entry; |
2468 | } |
2469 | |
2470 | index++; |
2471 | } |
2472 | |
2473 | fprintf(stderr, |
2474 | _("grubby fatal error: unable to find a suitable template\n")); |
2475 | |
2476 | return NULL; |
2477 | } |
2478 | |
2479 | char *findBootPrefix(void) |
2480 | { |
2481 | struct stat sb, sb2; |
2482 | |
2483 | stat("/", &sb); |
2484 | #ifdef __ia64__ |
2485 | stat("/boot/efi/EFI/redhat/", &sb2); |
2486 | #else |
2487 | stat("/boot", &sb2); |
2488 | #endif |
2489 | |
2490 | if (sb.st_dev == sb2.st_dev) |
2491 | return strdup(""); |
2492 | |
2493 | #ifdef __ia64__ |
2494 | return strdup("/boot/efi/EFI/redhat/"); |
2495 | #else |
2496 | return strdup("/boot"); |
2497 | #endif |
2498 | } |
2499 | |
2500 | void markRemovedImage(struct grubConfig *cfg, const char *image, |
2501 | const char *prefix) |
2502 | { |
2503 | struct singleEntry *entry; |
2504 | |
2505 | if (!image) |
2506 | return; |
2507 | |
2508 | /* check and see if we're removing the default image */ |
2509 | if (isdigit(*image)) { |
2510 | entry = findEntryByPath(cfg, image, prefix, NULL); |
2511 | if (entry) |
2512 | entry->skip = 1; |
2513 | return; |
2514 | } |
2515 | |
2516 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2517 | entry->skip = 1; |
2518 | } |
2519 | |
2520 | void setDefaultImage(struct grubConfig *config, int isAddingBootEntry, |
2521 | const char *defaultKernelPath, int newBootEntryIsDefault, |
2522 | const char *prefix, int flags, |
2523 | int newDefaultBootEntryIndex, int newBootEntryIndex) |
2524 | { |
2525 | struct singleEntry *bootEntry, *newDefault; |
2526 | int indexToVerify, firstKernelEntryIndex, currentLookupIndex; |
2527 | |
2528 | /* initialize */ |
2529 | currentLookupIndex = FIRST_ENTRY_INDEX; |
2530 | |
2531 | /* handle the two cases where the user explictly picks the default |
2532 | * boot entry index as it would exist post-modification */ |
2533 | |
2534 | /* Case 1: user chose to make the latest boot entry the default */ |
2535 | if (newBootEntryIsDefault) { |
2536 | config->defaultImage = newBootEntryIndex; |
2537 | return; |
2538 | } |
2539 | |
2540 | /* Case 2: user picked an arbitrary index as the default boot entry */ |
2541 | if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX |
2542 | && config->cfi->defaultIsIndex) { |
2543 | indexToVerify = newDefaultBootEntryIndex; |
2544 | |
2545 | /* user chose to make latest boot entry the default */ |
2546 | if (newDefaultBootEntryIndex == newBootEntryIndex) { |
2547 | config->defaultImage = newBootEntryIndex; |
2548 | return; |
2549 | } |
2550 | |
2551 | /* the user picks the default index based on the |
2552 | * order of the bootloader configuration after |
2553 | * modification; ensure we are checking for the |
2554 | * existence of the correct entry */ |
2555 | if (newBootEntryIndex < newDefaultBootEntryIndex) { |
2556 | if (!config->isModified) |
2557 | indexToVerify--; |
2558 | } |
2559 | |
2560 | /* verify the user selected index will exist */ |
2561 | if (findEntryByIndex(config, indexToVerify)) { |
2562 | config->defaultImage = newDefaultBootEntryIndex; |
2563 | } else { |
2564 | config->defaultImage = NO_DEFAULT_ENTRY; |
2565 | } |
2566 | |
2567 | return; |
2568 | } |
2569 | |
2570 | /* handle cases where the index value may shift */ |
2571 | |
2572 | /* check validity of existing default or first-entry-found |
2573 | selection */ |
2574 | if (defaultKernelPath) { |
2575 | /* we must initialize this */ |
2576 | firstKernelEntryIndex = 0; |
2577 | /* user requested first-entry-found */ |
2578 | if (!findEntryByPath(config, defaultKernelPath, |
2579 | prefix, &firstKernelEntryIndex)) { |
2580 | /* don't change default if can't find match */ |
2581 | config->defaultImage = NO_DEFAULT_ENTRY; |
2582 | return; |
2583 | } |
2584 | |
2585 | config->defaultImage = firstKernelEntryIndex; |
2586 | |
2587 | /* this is where we start looking for decrement later */ |
2588 | currentLookupIndex = config->defaultImage; |
2589 | |
2590 | if (isAddingBootEntry && !config->isModified && |
2591 | (newBootEntryIndex < config->defaultImage)) { |
2592 | /* increment because new entry added before default */ |
2593 | config->defaultImage++; |
2594 | } |
2595 | } else { |
2596 | /* check to see if the default is stored in the environment */ |
2597 | if (config->defaultImage < FIRST_ENTRY_INDEX) { |
2598 | if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2) |
2599 | { |
2600 | if (config->cfi->defaultIsSaved) { |
2601 | if (config->cfi->getEnv) { |
2602 | char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry"); |
2603 | |
2604 | if (defaultTitle) { |
2605 | if (isnumber(defaultTitle)) { |
2606 | currentLookupIndex = atoi(defaultTitle); |
2607 | } else { |
2608 | findEntryByTitle(config, defaultTitle, ¤tLookupIndex); |
2609 | } |
2610 | /* set the default Image to an actual index */ |
2611 | config->defaultImage = currentLookupIndex; |
2612 | } |
2613 | } |
2614 | } |
2615 | } |
2616 | } else { |
2617 | /* use pre-existing default entry from the file*/ |
2618 | currentLookupIndex = config->defaultImage; |
2619 | } |
2620 | |
2621 | if (isAddingBootEntry |
2622 | && (newBootEntryIndex <= config->defaultImage)) { |
2623 | config->defaultImage++; |
2624 | |
2625 | if (config->isModified) { |
2626 | currentLookupIndex++; |
2627 | } |
2628 | } |
2629 | } |
2630 | |
2631 | /* sanity check - is this entry index valid? */ |
2632 | bootEntry = findEntryByIndex(config, currentLookupIndex); |
2633 | |
2634 | if ((bootEntry && bootEntry->skip) || !bootEntry) { |
2635 | /* entry is to be skipped or is invalid */ |
2636 | if (isAddingBootEntry) { |
2637 | config->defaultImage = newBootEntryIndex; |
2638 | return; |
2639 | } |
2640 | newDefault = |
2641 | findTemplate(config, prefix, &config->defaultImage, 1, |
2642 | flags); |
2643 | if (!newDefault) { |
2644 | config->defaultImage = NO_DEFAULT_ENTRY; |
2645 | } |
2646 | |
2647 | return; |
2648 | } |
2649 | |
2650 | currentLookupIndex--; |
2651 | |
2652 | /* decrement index by the total number of entries deleted */ |
2653 | |
2654 | for (indexToVerify = currentLookupIndex; |
2655 | indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) { |
2656 | |
2657 | bootEntry = findEntryByIndex(config, indexToVerify); |
2658 | |
2659 | if (bootEntry && bootEntry->skip) { |
2660 | config->defaultImage--; |
2661 | } |
2662 | } |
2663 | } |
2664 | |
2665 | void setFallbackImage(struct grubConfig *config, int hasNew) |
2666 | { |
2667 | struct singleEntry *entry, *entry2; |
2668 | int j; |
2669 | |
2670 | if (config->fallbackImage == -1) |
2671 | return; |
2672 | |
2673 | entry = findEntryByIndex(config, config->fallbackImage); |
2674 | if (!entry || entry->skip) { |
2675 | config->fallbackImage = -1; |
2676 | return; |
2677 | } |
2678 | |
2679 | if (hasNew) |
2680 | config->fallbackImage++; |
2681 | |
2682 | /* count the number of entries erased before this one */ |
2683 | for (j = 0; j < config->fallbackImage; j++) { |
2684 | entry2 = findEntryByIndex(config, j); |
2685 | if (entry2->skip) |
2686 | config->fallbackImage--; |
2687 | } |
2688 | } |
2689 | |
2690 | void displayEntry(struct singleEntry *entry, const char *prefix, int index) |
2691 | { |
2692 | struct singleLine *line; |
2693 | char *root = NULL; |
2694 | int i; |
2695 | int j; |
2696 | |
2697 | printf("index=%d\n", index); |
2698 | |
2699 | line = |
2700 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, |
2701 | entry->lines); |
2702 | if (!line) { |
2703 | printf("non linux entry\n"); |
2704 | return; |
2705 | } |
2706 | |
2707 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2708 | printf("kernel=%s\n", line->elements[1].item); |
2709 | else |
2710 | printf("kernel=%s%s\n", prefix, line->elements[1].item); |
2711 | |
2712 | if (line->numElements >= 3) { |
2713 | printf("args=\""); |
2714 | i = 2; |
2715 | while (i < line->numElements) { |
2716 | if (!strncmp(line->elements[i].item, "root=", 5)) { |
2717 | root = line->elements[i].item + 5; |
2718 | } else { |
2719 | printf("%s%s", line->elements[i].item, |
2720 | line->elements[i].indent); |
2721 | } |
2722 | |
2723 | i++; |
2724 | } |
2725 | printf("\"\n"); |
2726 | } else { |
2727 | line = getLineByType(LT_KERNELARGS, entry->lines); |
2728 | if (line) { |
2729 | char *s; |
2730 | |
2731 | printf("args=\""); |
2732 | i = 1; |
2733 | while (i < line->numElements) { |
2734 | if (!strncmp |
2735 | (line->elements[i].item, "root=", 5)) { |
2736 | root = line->elements[i].item + 5; |
2737 | } else { |
2738 | s = line->elements[i].item; |
2739 | |
2740 | printf("%s%s", s, |
2741 | line->elements[i].indent); |
2742 | } |
2743 | |
2744 | i++; |
2745 | } |
2746 | |
2747 | s = line->elements[i - 1].indent; |
2748 | printf("\"\n"); |
2749 | } |
2750 | } |
2751 | |
2752 | if (!root) { |
2753 | line = getLineByType(LT_ROOT, entry->lines); |
2754 | if (line && line->numElements >= 2) |
2755 | root = line->elements[1].item; |
2756 | } |
2757 | |
2758 | if (root) { |
2759 | char *s = alloca(strlen(root) + 1); |
2760 | |
2761 | strcpy(s, root); |
2762 | if (s[strlen(s) - 1] == '"') |
2763 | s[strlen(s) - 1] = '\0'; |
2764 | /* make sure the root doesn't have a trailing " */ |
2765 | printf("root=%s\n", s); |
2766 | } |
2767 | |
2768 | line = |
2769 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
2770 | entry->lines); |
2771 | |
2772 | if (line && line->numElements >= 2) { |
2773 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2774 | printf("initrd="); |
2775 | else |
2776 | printf("initrd=%s", prefix); |
2777 | |
2778 | for (i = 1; i < line->numElements; i++) |
2779 | printf("%s%s", line->elements[i].item, |
2780 | line->elements[i].indent); |
2781 | printf("\n"); |
2782 | } |
2783 | |
2784 | line = getLineByType(LT_TITLE, entry->lines); |
2785 | if (line) { |
2786 | printf("title=%s\n", line->elements[1].item); |
2787 | } else { |
2788 | char *title; |
2789 | line = getLineByType(LT_MENUENTRY, entry->lines); |
2790 | if (line) { |
2791 | title = grub2ExtractTitle(line); |
2792 | if (title) |
2793 | printf("title=%s\n", title); |
2794 | } |
2795 | } |
2796 | |
2797 | for (j = 0, line = entry->lines; line; line = line->next) { |
2798 | if ((line->type & LT_MBMODULE) && line->numElements >= 2) { |
2799 | if (!strncmp |
2800 | (prefix, line->elements[1].item, strlen(prefix))) |
2801 | printf("mbmodule%d=", j); |
2802 | else |
2803 | printf("mbmodule%d=%s", j, prefix); |
2804 | |
2805 | for (i = 1; i < line->numElements; i++) |
2806 | printf("%s%s", line->elements[i].item, |
2807 | line->elements[i].indent); |
2808 | printf("\n"); |
2809 | j++; |
2810 | } |
2811 | } |
2812 | } |
2813 | |
2814 | int isSuseSystem(void) |
2815 | { |
2816 | const char *path; |
2817 | const static char default_path[] = "/etc/SuSE-release"; |
2818 | |
2819 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) |
2820 | path = default_path; |
2821 | |
2822 | if (!access(path, R_OK)) |
2823 | return 1; |
2824 | return 0; |
2825 | } |
2826 | |
2827 | int isSuseGrubConf(const char *path) |
2828 | { |
2829 | FILE *grubConf; |
2830 | char *line = NULL; |
2831 | size_t len = 0, res = 0; |
2832 | |
2833 | grubConf = fopen(path, "r"); |
2834 | if (!grubConf) { |
2835 | dbgPrintf("Could not open SuSE configuration file '%s'\n", |
2836 | path); |
2837 | return 0; |
2838 | } |
2839 | |
2840 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2841 | if (!strncmp(line, "setup", 5)) { |
2842 | fclose(grubConf); |
2843 | free(line); |
2844 | return 1; |
2845 | } |
2846 | } |
2847 | |
2848 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", |
2849 | path); |
2850 | |
2851 | fclose(grubConf); |
2852 | free(line); |
2853 | return 0; |
2854 | } |
2855 | |
2856 | int suseGrubConfGetLba(const char *path, int *lbaPtr) |
2857 | { |
2858 | FILE *grubConf; |
2859 | char *line = NULL; |
2860 | size_t res = 0, len = 0; |
2861 | |
2862 | if (!path) |
2863 | return 1; |
2864 | if (!lbaPtr) |
2865 | return 1; |
2866 | |
2867 | grubConf = fopen(path, "r"); |
2868 | if (!grubConf) |
2869 | return 1; |
2870 | |
2871 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2872 | if (line[res - 1] == '\n') |
2873 | line[res - 1] = '\0'; |
2874 | else if (len > res) |
2875 | line[res] = '\0'; |
2876 | else { |
2877 | line = realloc(line, res + 1); |
2878 | line[res] = '\0'; |
2879 | } |
2880 | |
2881 | if (!strncmp(line, "setup", 5)) { |
2882 | if (strstr(line, "--force-lba")) { |
2883 | *lbaPtr = 1; |
2884 | } else { |
2885 | *lbaPtr = 0; |
2886 | } |
2887 | dbgPrintf("lba: %i\n", *lbaPtr); |
2888 | break; |
2889 | } |
2890 | } |
2891 | |
2892 | free(line); |
2893 | fclose(grubConf); |
2894 | return 0; |
2895 | } |
2896 | |
2897 | int suseGrubConfGetInstallDevice(const char *path, char **devicePtr) |
2898 | { |
2899 | FILE *grubConf; |
2900 | char *line = NULL; |
2901 | size_t res = 0, len = 0; |
2902 | char *lastParamPtr = NULL; |
2903 | char *secLastParamPtr = NULL; |
2904 | char installDeviceNumber = '\0'; |
2905 | char *bounds = NULL; |
2906 | |
2907 | if (!path) |
2908 | return 1; |
2909 | if (!devicePtr) |
2910 | return 1; |
2911 | |
2912 | grubConf = fopen(path, "r"); |
2913 | if (!grubConf) |
2914 | return 1; |
2915 | |
2916 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2917 | if (strncmp(line, "setup", 5)) |
2918 | continue; |
2919 | |
2920 | if (line[res - 1] == '\n') |
2921 | line[res - 1] = '\0'; |
2922 | else if (len > res) |
2923 | line[res] = '\0'; |
2924 | else { |
2925 | line = realloc(line, res + 1); |
2926 | line[res] = '\0'; |
2927 | } |
2928 | |
2929 | lastParamPtr = bounds = line + res; |
2930 | |
2931 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ |
2932 | while (!isspace(*lastParamPtr)) |
2933 | lastParamPtr--; |
2934 | lastParamPtr++; |
2935 | |
2936 | secLastParamPtr = lastParamPtr - 2; |
2937 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); |
2938 | |
2939 | if (lastParamPtr + 3 > bounds) { |
2940 | dbgPrintf("lastParamPtr going over boundary"); |
2941 | fclose(grubConf); |
2942 | free(line); |
2943 | return 1; |
2944 | } |
2945 | if (!strncmp(lastParamPtr, "(hd", 3)) |
2946 | lastParamPtr += 3; |
2947 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); |
2948 | |
2949 | /* |
2950 | * Second last parameter will decide wether last parameter is |
2951 | * an IMAGE_DEVICE or INSTALL_DEVICE |
2952 | */ |
2953 | while (!isspace(*secLastParamPtr)) |
2954 | secLastParamPtr--; |
2955 | secLastParamPtr++; |
2956 | |
2957 | if (secLastParamPtr + 3 > bounds) { |
2958 | dbgPrintf("secLastParamPtr going over boundary"); |
2959 | fclose(grubConf); |
2960 | free(line); |
2961 | return 1; |
2962 | } |
2963 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); |
2964 | if (!strncmp(secLastParamPtr, "(hd", 3)) { |
2965 | secLastParamPtr += 3; |
2966 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); |
2967 | installDeviceNumber = *secLastParamPtr; |
2968 | } else { |
2969 | installDeviceNumber = *lastParamPtr; |
2970 | } |
2971 | |
2972 | *devicePtr = malloc(6); |
2973 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); |
2974 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); |
2975 | fclose(grubConf); |
2976 | free(line); |
2977 | return 0; |
2978 | } |
2979 | |
2980 | free(line); |
2981 | fclose(grubConf); |
2982 | return 1; |
2983 | } |
2984 | |
2985 | int grubGetBootFromDeviceMap(const char *device, char **bootPtr) |
2986 | { |
2987 | FILE *deviceMap; |
2988 | char *line = NULL; |
2989 | size_t res = 0, len = 0; |
2990 | char *devicePtr; |
2991 | char *bounds = NULL; |
2992 | const char *path; |
2993 | const static char default_path[] = "/boot/grub/device.map"; |
2994 | |
2995 | if (!device) |
2996 | return 1; |
2997 | if (!bootPtr) |
2998 | return 1; |
2999 | |
3000 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) |
3001 | path = default_path; |
3002 | |
3003 | dbgPrintf("opening grub device.map file from: %s\n", path); |
3004 | deviceMap = fopen(path, "r"); |
3005 | if (!deviceMap) |
3006 | return 1; |
3007 | |
3008 | while ((res = getline(&line, &len, deviceMap)) != -1) { |
3009 | if (!strncmp(line, "#", 1)) |
3010 | continue; |
3011 | |
3012 | if (line[res - 1] == '\n') |
3013 | line[res - 1] = '\0'; |
3014 | else if (len > res) |
3015 | line[res] = '\0'; |
3016 | else { |
3017 | line = realloc(line, res + 1); |
3018 | line[res] = '\0'; |
3019 | } |
3020 | |
3021 | devicePtr = line; |
3022 | bounds = line + res; |
3023 | |
3024 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) |
3025 | devicePtr++; |
3026 | dbgPrintf("device: %s\n", devicePtr); |
3027 | |
3028 | if (!strncmp(devicePtr, device, strlen(device))) { |
3029 | devicePtr += strlen(device); |
3030 | while (isspace(*devicePtr) |
3031 | && ((devicePtr + 1) <= bounds)) |
3032 | devicePtr++; |
3033 | |
3034 | *bootPtr = strdup(devicePtr); |
3035 | break; |
3036 | } |
3037 | } |
3038 | |
3039 | free(line); |
3040 | fclose(deviceMap); |
3041 | return 0; |
3042 | } |
3043 | |
3044 | int suseGrubConfGetBoot(const char *path, char **bootPtr) |
3045 | { |
3046 | char *grubDevice; |
3047 | |
3048 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) |
3049 | dbgPrintf("error looking for grub installation device\n"); |
3050 | else |
3051 | dbgPrintf("grubby installation device: %s\n", grubDevice); |
3052 | |
3053 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) |
3054 | dbgPrintf("error looking for grub boot device\n"); |
3055 | else |
3056 | dbgPrintf("grubby boot device: %s\n", *bootPtr); |
3057 | |
3058 | free(grubDevice); |
3059 | return 0; |
3060 | } |
3061 | |
3062 | int parseSuseGrubConf(int *lbaPtr, char **bootPtr) |
3063 | { |
3064 | /* |
3065 | * This SuSE grub configuration file at this location is not your |
3066 | * average grub configuration file, but instead the grub commands |
3067 | * used to setup grub on that system. |
3068 | */ |
3069 | const char *path; |
3070 | const static char default_path[] = "/etc/grub.conf"; |
3071 | |
3072 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) |
3073 | path = default_path; |
3074 | |
3075 | if (!isSuseGrubConf(path)) |
3076 | return 1; |
3077 | |
3078 | if (lbaPtr) { |
3079 | *lbaPtr = 0; |
3080 | if (suseGrubConfGetLba(path, lbaPtr)) |
3081 | return 1; |
3082 | } |
3083 | |
3084 | if (bootPtr) { |
3085 | *bootPtr = NULL; |
3086 | suseGrubConfGetBoot(path, bootPtr); |
3087 | } |
3088 | |
3089 | return 0; |
3090 | } |
3091 | |
3092 | int parseSysconfigGrub(int *lbaPtr, char **bootPtr) |
3093 | { |
3094 | FILE *in; |
3095 | char buf[1024]; |
3096 | char *chptr; |
3097 | char *start; |
3098 | char *param; |
3099 | |
3100 | in = fopen("/etc/sysconfig/grub", "r"); |
3101 | if (!in) |
3102 | return 1; |
3103 | |
3104 | if (lbaPtr) |
3105 | *lbaPtr = 0; |
3106 | if (bootPtr) |
3107 | *bootPtr = NULL; |
3108 | |
3109 | while (fgets(buf, sizeof(buf), in)) { |
3110 | start = buf; |
3111 | while (isspace(*start)) |
3112 | start++; |
3113 | if (*start == '#') |
3114 | continue; |
3115 | |
3116 | chptr = strchr(start, '='); |
3117 | if (!chptr) |
3118 | continue; |
3119 | chptr--; |
3120 | while (*chptr && isspace(*chptr)) |
3121 | chptr--; |
3122 | chptr++; |
3123 | *chptr = '\0'; |
3124 | |
3125 | param = chptr + 1; |
3126 | while (*param && isspace(*param)) |
3127 | param++; |
3128 | if (*param == '=') { |
3129 | param++; |
3130 | while (*param && isspace(*param)) |
3131 | param++; |
3132 | } |
3133 | |
3134 | chptr = param; |
3135 | while (*chptr && !isspace(*chptr)) |
3136 | chptr++; |
3137 | *chptr = '\0'; |
3138 | |
3139 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) |
3140 | *lbaPtr = 1; |
3141 | else if (!strcmp(start, "boot") && bootPtr) |
3142 | *bootPtr = strdup(param); |
3143 | } |
3144 | |
3145 | fclose(in); |
3146 | |
3147 | return 0; |
3148 | } |
3149 | |
3150 | void dumpSysconfigGrub(void) |
3151 | { |
3152 | char *boot = NULL; |
3153 | int lba; |
3154 | |
3155 | if (isSuseSystem()) { |
3156 | if (parseSuseGrubConf(&lba, &boot)) { |
3157 | free(boot); |
3158 | return; |
3159 | } |
3160 | } else { |
3161 | if (parseSysconfigGrub(&lba, &boot)) { |
3162 | free(boot); |
3163 | return; |
3164 | } |
3165 | } |
3166 | |
3167 | if (lba) |
3168 | printf("lba\n"); |
3169 | if (boot) { |
3170 | printf("boot=%s\n", boot); |
3171 | free(boot); |
3172 | } |
3173 | } |
3174 | |
3175 | int displayInfo(struct grubConfig *config, char *kernel, const char *prefix) |
3176 | { |
3177 | int i = 0; |
3178 | struct singleEntry *entry; |
3179 | struct singleLine *line; |
3180 | |
3181 | entry = findEntryByPath(config, kernel, prefix, &i); |
3182 | if (!entry) { |
3183 | fprintf(stderr, _("grubby: kernel not found\n")); |
3184 | return 1; |
3185 | } |
3186 | |
3187 | /* this is a horrible hack to support /etc/sysconfig/grub; there must |
3188 | be a better way */ |
3189 | if (config->cfi == &grubConfigType) { |
3190 | dumpSysconfigGrub(); |
3191 | } else { |
3192 | line = getLineByType(LT_BOOT, config->theLines); |
3193 | if (line && line->numElements >= 1) { |
3194 | printf("boot=%s\n", line->elements[1].item); |
3195 | } |
3196 | |
3197 | line = getLineByType(LT_LBA, config->theLines); |
3198 | if (line) |
3199 | printf("lba\n"); |
3200 | } |
3201 | |
3202 | displayEntry(entry, prefix, i); |
3203 | |
3204 | i++; |
3205 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { |
3206 | displayEntry(entry, prefix, i); |
3207 | i++; |
3208 | } |
3209 | |
3210 | return 0; |
3211 | } |
3212 | |
3213 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
3214 | struct singleLine *tmplLine, |
3215 | struct singleLine *prevLine, |
3216 | const char *val, struct configFileInfo *cfi) |
3217 | { |
3218 | struct singleLine *newLine = lineDup(tmplLine); |
3219 | |
3220 | if (isEfi && cfi == &grub2ConfigType) { |
3221 | enum lineType_e old = newLine->type; |
3222 | newLine->type = preferredLineType(newLine->type, cfi); |
3223 | if (old != newLine->type) |
3224 | newLine->elements[0].item = |
3225 | getKeyByType(newLine->type, cfi); |
3226 | } |
3227 | |
3228 | if (val) { |
3229 | /* override the inherited value with our own. |
3230 | * This is a little weak because it only applies to elements[1] |
3231 | */ |
3232 | if (newLine->numElements > 1) |
3233 | removeElement(newLine, 1); |
3234 | insertElement(newLine, val, 1, cfi); |
3235 | |
3236 | /* but try to keep the rootspec from the template... sigh */ |
3237 | if (tmplLine-> |
3238 | type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD | |
3239 | LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 | |
3240 | LT_INITRD_16)) { |
3241 | char *rootspec = |
3242 | getRootSpecifier(tmplLine->elements[1].item); |
3243 | if (rootspec != NULL) { |
3244 | free(newLine->elements[1].item); |
3245 | newLine->elements[1].item = |
3246 | sdupprintf("%s%s", rootspec, val); |
3247 | } |
3248 | } |
3249 | } |
3250 | |
3251 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? |
3252 | newLine->elements[0].item : ""); |
3253 | |
3254 | if (!entry->lines) { |
3255 | /* first one on the list */ |
3256 | entry->lines = newLine; |
3257 | } else if (prevLine) { |
3258 | /* add after prevLine */ |
3259 | newLine->next = prevLine->next; |
3260 | prevLine->next = newLine; |
3261 | } |
3262 | |
3263 | return newLine; |
3264 | } |
3265 | |
3266 | /* val may be NULL */ |
3267 | struct singleLine *addLine(struct singleEntry *entry, |
3268 | struct configFileInfo *cfi, |
3269 | enum lineType_e type, char *defaultIndent, |
3270 | const char *val) |
3271 | { |
3272 | struct singleLine *line, *prev; |
3273 | struct keywordTypes *kw; |
3274 | struct singleLine tmpl; |
3275 | |
3276 | /* NB: This function shouldn't allocate items on the heap, rather on |
3277 | * the stack since it calls addLineTmpl which will make copies. |
3278 | */ |
3279 | if (type == LT_TITLE && cfi->titleBracketed) { |
3280 | /* we're doing a bracketed title (zipl) */ |
3281 | tmpl.type = type; |
3282 | tmpl.numElements = 1; |
3283 | tmpl.elements = alloca(sizeof(*tmpl.elements)); |
3284 | tmpl.elements[0].item = alloca(strlen(val) + 3); |
3285 | sprintf(tmpl.elements[0].item, "[%s]", val); |
3286 | tmpl.elements[0].indent = ""; |
3287 | val = NULL; |
3288 | } else if (type == LT_MENUENTRY) { |
3289 | char *lineend = "--class gnu-linux --class gnu --class os {"; |
3290 | if (!val) { |
3291 | fprintf(stderr, |
3292 | "Line type LT_MENUENTRY requires a value\n"); |
3293 | abort(); |
3294 | } |
3295 | kw = getKeywordByType(type, cfi); |
3296 | if (!kw) { |
3297 | fprintf(stderr, |
3298 | "Looking up keyword for unknown type %d\n", |
3299 | type); |
3300 | abort(); |
3301 | } |
3302 | tmpl.indent = ""; |
3303 | tmpl.type = type; |
3304 | tmpl.numElements = 3; |
3305 | tmpl.elements = |
3306 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3307 | tmpl.elements[0].item = kw->key; |
3308 | tmpl.elements[0].indent = alloca(2); |
3309 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3310 | tmpl.elements[1].item = (char *)val; |
3311 | tmpl.elements[1].indent = alloca(2); |
3312 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); |
3313 | tmpl.elements[2].item = alloca(strlen(lineend) + 1); |
3314 | strcpy(tmpl.elements[2].item, lineend); |
3315 | tmpl.elements[2].indent = ""; |
3316 | } else { |
3317 | kw = getKeywordByType(type, cfi); |
3318 | if (!kw) { |
3319 | fprintf(stderr, |
3320 | "Looking up keyword for unknown type %d\n", |
3321 | type); |
3322 | abort(); |
3323 | } |
3324 | tmpl.type = type; |
3325 | tmpl.numElements = val ? 2 : 1; |
3326 | tmpl.elements = |
3327 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); |
3328 | tmpl.elements[0].item = kw->key; |
3329 | tmpl.elements[0].indent = alloca(2); |
3330 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); |
3331 | if (val) { |
3332 | tmpl.elements[1].item = (char *)val; |
3333 | tmpl.elements[1].indent = ""; |
3334 | } |
3335 | } |
3336 | |
3337 | /* The last non-empty line gives us the indention to us and the line |
3338 | * to insert after. Note that comments are considered empty lines, |
3339 | * which may not be ideal? If there are no lines or we are looking at |
3340 | * the first line, we use defaultIndent (the first line is normally |
3341 | * indented differently from the rest) */ |
3342 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
3343 | if (line->numElements) |
3344 | prev = line; |
3345 | /* fall back on the last line if prev isn't otherwise set */ |
3346 | if (!line->next && !prev) |
3347 | prev = line; |
3348 | } |
3349 | |
3350 | struct singleLine *menuEntry; |
3351 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); |
3352 | if (tmpl.type == LT_ENTRY_END) { |
3353 | if (menuEntry) |
3354 | tmpl.indent = menuEntry->indent; |
3355 | else |
3356 | tmpl.indent = defaultIndent ? : ""; |
3357 | } else if (tmpl.type != LT_MENUENTRY) { |
3358 | if (menuEntry) |
3359 | tmpl.indent = "\t"; |
3360 | else if (prev == entry->lines) |
3361 | tmpl.indent = defaultIndent ? : ""; |
3362 | else |
3363 | tmpl.indent = prev->indent; |
3364 | } |
3365 | |
3366 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
3367 | } |
3368 | |
3369 | void removeLine(struct singleEntry *entry, struct singleLine *line) |
3370 | { |
3371 | struct singleLine *prev; |
3372 | int i; |
3373 | |
3374 | for (i = 0; i < line->numElements; i++) { |
3375 | free(line->elements[i].item); |
3376 | free(line->elements[i].indent); |
3377 | } |
3378 | free(line->elements); |
3379 | free(line->indent); |
3380 | |
3381 | if (line == entry->lines) { |
3382 | entry->lines = line->next; |
3383 | } else { |
3384 | prev = entry->lines; |
3385 | while (prev->next != line) |
3386 | prev = prev->next; |
3387 | prev->next = line->next; |
3388 | } |
3389 | |
3390 | free(line); |
3391 | } |
3392 | |
3393 | static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi) |
3394 | { |
3395 | struct singleLine newLine = { |
3396 | .indent = tmplLine->indent, |
3397 | .type = tmplLine->type, |
3398 | .next = tmplLine->next, |
3399 | }; |
3400 | int firstQuotedItem = -1; |
3401 | int quoteLen = 0; |
3402 | int j; |
3403 | int element = 0; |
3404 | char *c; |
3405 | |
3406 | c = malloc(strlen(tmplLine->elements[0].item) + 1); |
3407 | strcpy(c, tmplLine->elements[0].item); |
3408 | insertElement(&newLine, c, element++, cfi); |
3409 | free(c); |
3410 | c = NULL; |
3411 | |
3412 | for (j = 1; j < tmplLine->numElements; j++) { |
3413 | if (firstQuotedItem == -1) { |
3414 | quoteLen += strlen(tmplLine->elements[j].item); |
3415 | |
3416 | if (isquote(tmplLine->elements[j].item[0])) { |
3417 | firstQuotedItem = j; |
3418 | quoteLen += |
3419 | strlen(tmplLine->elements[j].indent); |
3420 | } else { |
3421 | c = malloc(quoteLen + 1); |
3422 | strcpy(c, tmplLine->elements[j].item); |
3423 | insertElement(&newLine, c, element++, cfi); |
3424 | free(c); |
3425 | quoteLen = 0; |
3426 | } |
3427 | } else { |
3428 | int itemlen = strlen(tmplLine->elements[j].item); |
3429 | quoteLen += itemlen; |
3430 | quoteLen += strlen(tmplLine->elements[j].indent); |
3431 | |
3432 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { |
3433 | c = malloc(quoteLen + 1); |
3434 | c[0] = '\0'; |
3435 | for (int i = firstQuotedItem; i < j + 1; i++) { |
3436 | strcat(c, tmplLine->elements[i].item); |
3437 | strcat(c, tmplLine->elements[i].indent); |
3438 | } |
3439 | insertElement(&newLine, c, element++, cfi); |
3440 | free(c); |
3441 | |
3442 | firstQuotedItem = -1; |
3443 | quoteLen = 0; |
3444 | } |
3445 | } |
3446 | } |
3447 | while (tmplLine->numElements) |
3448 | removeElement(tmplLine, 0); |
3449 | if (tmplLine->elements) |
3450 | free(tmplLine->elements); |
3451 | |
3452 | tmplLine->numElements = newLine.numElements; |
3453 | tmplLine->elements = newLine.elements; |
3454 | } |
3455 | |
3456 | static void insertElement(struct singleLine *line, |
3457 | const char *item, int insertHere, |
3458 | struct configFileInfo *cfi) |
3459 | { |
3460 | struct keywordTypes *kw; |
3461 | char indent[2] = ""; |
3462 | |
3463 | /* sanity check */ |
3464 | if (insertHere > line->numElements) { |
3465 | dbgPrintf |
3466 | ("insertElement() adjusting insertHere from %d to %d\n", |
3467 | insertHere, line->numElements); |
3468 | insertHere = line->numElements; |
3469 | } |
3470 | |
3471 | line->elements = realloc(line->elements, (line->numElements + 1) * |
3472 | sizeof(*line->elements)); |
3473 | memmove(&line->elements[insertHere + 1], |
3474 | &line->elements[insertHere], |
3475 | (line->numElements - insertHere) * sizeof(*line->elements)); |
3476 | line->elements[insertHere].item = strdup(item); |
3477 | |
3478 | kw = getKeywordByType(line->type, cfi); |
3479 | |
3480 | if (line->numElements == 0) { |
3481 | indent[0] = '\0'; |
3482 | } else if (insertHere == 0) { |
3483 | indent[0] = kw->nextChar; |
3484 | } else if (kw->separatorChar != '\0') { |
3485 | indent[0] = kw->separatorChar; |
3486 | } else { |
3487 | indent[0] = ' '; |
3488 | } |
3489 | |
3490 | if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') { |
3491 | /* move the end-of-line forward */ |
3492 | line->elements[insertHere].indent = |
3493 | line->elements[insertHere - 1].indent; |
3494 | line->elements[insertHere - 1].indent = strdup(indent); |
3495 | } else { |
3496 | line->elements[insertHere].indent = strdup(indent); |
3497 | } |
3498 | |
3499 | line->numElements++; |
3500 | |
3501 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", |
3502 | line->elements[0].item, |
3503 | line->elements[insertHere].item, |
3504 | line->elements[insertHere].indent, insertHere); |
3505 | } |
3506 | |
3507 | static void removeElement(struct singleLine *line, int removeHere) |
3508 | { |
3509 | int i; |
3510 | |
3511 | /* sanity check */ |
3512 | if (removeHere >= line->numElements) |
3513 | return; |
3514 | |
3515 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, |
3516 | removeHere, line->elements[removeHere].item); |
3517 | |
3518 | free(line->elements[removeHere].item); |
3519 | |
3520 | if (removeHere > 1) { |
3521 | /* previous argument gets this argument's post-indentation */ |
3522 | free(line->elements[removeHere - 1].indent); |
3523 | line->elements[removeHere - 1].indent = |
3524 | line->elements[removeHere].indent; |
3525 | } else { |
3526 | free(line->elements[removeHere].indent); |
3527 | } |
3528 | |
3529 | /* now collapse the array, but don't bother to realloc smaller */ |
3530 | for (i = removeHere; i < line->numElements - 1; i++) |
3531 | line->elements[i] = line->elements[i + 1]; |
3532 | |
3533 | line->numElements--; |
3534 | } |
3535 | |
3536 | int argMatch(const char *one, const char *two) |
3537 | { |
3538 | char *first, *second; |
3539 | char *chptr; |
3540 | |
3541 | first = strcpy(alloca(strlen(one) + 1), one); |
3542 | second = strcpy(alloca(strlen(two) + 1), two); |
3543 | |
3544 | chptr = strchr(first, '='); |
3545 | if (chptr) |
3546 | *chptr = '\0'; |
3547 | |
3548 | chptr = strchr(second, '='); |
3549 | if (chptr) |
3550 | *chptr = '\0'; |
3551 | |
3552 | return strcmp(first, second); |
3553 | } |
3554 | |
3555 | int updateActualImage(struct grubConfig *cfg, const char *image, |
3556 | const char *prefix, const char *addArgs, |
3557 | const char *removeArgs, int multibootArgs) |
3558 | { |
3559 | struct singleEntry *entry; |
3560 | struct singleLine *line, *rootLine; |
3561 | int index = 0; |
3562 | int i, k; |
3563 | const char **newArgs, **oldArgs; |
3564 | const char **arg; |
3565 | int useKernelArgs, useRoot; |
3566 | int firstElement; |
3567 | int *usedElements; |
3568 | int doreplace; |
3569 | |
3570 | if (!image) |
3571 | return 0; |
3572 | |
3573 | if (!addArgs) { |
3574 | newArgs = malloc(sizeof(*newArgs)); |
3575 | *newArgs = NULL; |
3576 | } else { |
3577 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { |
3578 | fprintf(stderr, |
3579 | _("grubby: error separating arguments '%s'\n"), |
3580 | addArgs); |
3581 | return 1; |
3582 | } |
3583 | } |
3584 | |
3585 | if (!removeArgs) { |
3586 | oldArgs = malloc(sizeof(*oldArgs)); |
3587 | *oldArgs = NULL; |
3588 | } else { |
3589 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { |
3590 | fprintf(stderr, |
3591 | _("grubby: error separating arguments '%s'\n"), |
3592 | removeArgs); |
3593 | free(newArgs); |
3594 | return 1; |
3595 | } |
3596 | } |
3597 | |
3598 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3599 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); |
3600 | |
3601 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3602 | && !multibootArgs); |
3603 | |
3604 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3605 | |
3606 | if (multibootArgs && !entry->multiboot) |
3607 | continue; |
3608 | |
3609 | /* Determine where to put the args. If this config supports |
3610 | * LT_KERNELARGS, use that. Otherwise use |
3611 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. |
3612 | */ |
3613 | if (useKernelArgs) { |
3614 | line = getLineByType(LT_KERNELARGS, entry->lines); |
3615 | if (!line) { |
3616 | /* no LT_KERNELARGS, need to add it */ |
3617 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, |
3618 | cfg->secondaryIndent, NULL); |
3619 | } |
3620 | firstElement = 1; |
3621 | |
3622 | } else if (multibootArgs) { |
3623 | line = getLineByType(LT_HYPER, entry->lines); |
3624 | if (!line) { |
3625 | /* a multiboot entry without LT_HYPER? */ |
3626 | continue; |
3627 | } |
3628 | firstElement = 2; |
3629 | |
3630 | } else { |
3631 | line = |
3632 | getLineByType(LT_KERNEL | LT_MBMODULE | |
3633 | LT_KERNEL_EFI | LT_KERNEL_16, |
3634 | entry->lines); |
3635 | if (!line) { |
3636 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ |
3637 | continue; |
3638 | } |
3639 | firstElement = 2; |
3640 | } |
3641 | |
3642 | /* handle the elilo case which does: |
3643 | * append="hypervisor args -- kernel args" |
3644 | */ |
3645 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { |
3646 | /* this is a multiboot entry, make sure there's |
3647 | * -- on the args line |
3648 | */ |
3649 | for (i = firstElement; i < line->numElements; i++) { |
3650 | if (!strcmp(line->elements[i].item, "--")) |
3651 | break; |
3652 | } |
3653 | if (i == line->numElements) { |
3654 | /* assume all existing args are kernel args, |
3655 | * prepend -- to make it official |
3656 | */ |
3657 | insertElement(line, "--", firstElement, |
3658 | cfg->cfi); |
3659 | i = firstElement; |
3660 | } |
3661 | if (!multibootArgs) { |
3662 | /* kernel args start after the -- */ |
3663 | firstElement = i + 1; |
3664 | } |
3665 | } else if (cfg->cfi->mbConcatArgs) { |
3666 | /* this is a non-multiboot entry, remove hyper args */ |
3667 | for (i = firstElement; i < line->numElements; i++) { |
3668 | if (!strcmp(line->elements[i].item, "--")) |
3669 | break; |
3670 | } |
3671 | if (i < line->numElements) { |
3672 | /* remove args up to -- */ |
3673 | while (strcmp |
3674 | (line->elements[firstElement].item, |
3675 | "--")) |
3676 | removeElement(line, firstElement); |
3677 | /* remove -- */ |
3678 | removeElement(line, firstElement); |
3679 | } |
3680 | } |
3681 | |
3682 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3683 | |
3684 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3685 | |
3686 | doreplace = 1; |
3687 | for (i = firstElement; i < line->numElements; i++) { |
3688 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3689 | !strcmp(line->elements[i].item, "--")) { |
3690 | /* reached the end of hyper args, insert here */ |
3691 | doreplace = 0; |
3692 | break; |
3693 | } |
3694 | if (usedElements[i]) |
3695 | continue; |
3696 | if (!argMatch(line->elements[i].item, *arg)) { |
3697 | usedElements[i] = 1; |
3698 | break; |
3699 | } |
3700 | } |
3701 | |
3702 | if (i < line->numElements && doreplace) { |
3703 | /* direct replacement */ |
3704 | free(line->elements[i].item); |
3705 | line->elements[i].item = strdup(*arg); |
3706 | |
3707 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3708 | /* root= replacement */ |
3709 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3710 | if (rootLine) { |
3711 | free(rootLine->elements[1].item); |
3712 | rootLine->elements[1].item = |
3713 | strdup(*arg + 5); |
3714 | } else { |
3715 | rootLine = |
3716 | addLine(entry, cfg->cfi, LT_ROOT, |
3717 | cfg->secondaryIndent, |
3718 | *arg + 5); |
3719 | } |
3720 | } |
3721 | |
3722 | else { |
3723 | /* insert/append */ |
3724 | insertElement(line, *arg, i, cfg->cfi); |
3725 | usedElements = |
3726 | realloc(usedElements, |
3727 | line->numElements * |
3728 | sizeof(*usedElements)); |
3729 | memmove(&usedElements[i + 1], &usedElements[i], |
3730 | line->numElements - i - 1); |
3731 | usedElements[i] = 1; |
3732 | |
3733 | /* if we updated a root= here even though |
3734 | * there is a LT_ROOT available we need to |
3735 | * remove the LT_ROOT entry (this will happen |
3736 | * if we switch from a device to a label) */ |
3737 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3738 | rootLine = |
3739 | getLineByType(LT_ROOT, |
3740 | entry->lines); |
3741 | if (rootLine) |
3742 | removeLine(entry, rootLine); |
3743 | } |
3744 | } |
3745 | } |
3746 | |
3747 | free(usedElements); |
3748 | |
3749 | for (arg = oldArgs; *arg; arg++) { |
3750 | for (i = firstElement; i < line->numElements; i++) { |
3751 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3752 | !strcmp(line->elements[i].item, "--")) |
3753 | /* reached the end of hyper args, stop here */ |
3754 | break; |
3755 | if (!argMatch(line->elements[i].item, *arg)) { |
3756 | removeElement(line, i); |
3757 | break; |
3758 | } |
3759 | } |
3760 | /* handle removing LT_ROOT line too */ |
3761 | if (useRoot && !strncmp(*arg, "root=", 5)) { |
3762 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3763 | if (rootLine) |
3764 | removeLine(entry, rootLine); |
3765 | } |
3766 | } |
3767 | |
3768 | if (line->numElements == 1) { |
3769 | /* don't need the line at all (note it has to be a |
3770 | LT_KERNELARGS for this to happen */ |
3771 | removeLine(entry, line); |
3772 | } |
3773 | } |
3774 | |
3775 | free(newArgs); |
3776 | free(oldArgs); |
3777 | |
3778 | return 0; |
3779 | } |
3780 | |
3781 | int updateImage(struct grubConfig *cfg, const char *image, |
3782 | const char *prefix, const char *addArgs, |
3783 | const char *removeArgs, |
3784 | const char *addMBArgs, const char *removeMBArgs) |
3785 | { |
3786 | int rc = 0; |
3787 | |
3788 | if (!image) |
3789 | return rc; |
3790 | |
3791 | /* update the main args first... */ |
3792 | if (addArgs || removeArgs) |
3793 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, |
3794 | 0); |
3795 | if (rc) |
3796 | return rc; |
3797 | |
3798 | /* and now any multiboot args */ |
3799 | if (addMBArgs || removeMBArgs) |
3800 | rc = updateActualImage(cfg, image, prefix, addMBArgs, |
3801 | removeMBArgs, 1); |
3802 | return rc; |
3803 | } |
3804 | |
3805 | int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel, |
3806 | const char *image, const char *prefix, const char *initrd, |
3807 | const char *title) |
3808 | { |
3809 | struct singleEntry *entry; |
3810 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3811 | int index = 0; |
3812 | |
3813 | if (!image) |
3814 | return 0; |
3815 | |
3816 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3817 | kernelLine = getLineByType(LT_MBMODULE, entry->lines); |
3818 | if (!kernelLine) |
3819 | continue; |
3820 | |
3821 | /* if title is supplied, the entry's title must match it. */ |
3822 | if (title) { |
3823 | char *linetitle; |
3824 | |
3825 | line = |
3826 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3827 | entry->lines); |
3828 | if (!line) |
3829 | continue; |
3830 | |
3831 | linetitle = extractTitle(cfg, line); |
3832 | if (!linetitle) |
3833 | continue; |
3834 | if (strcmp(title, linetitle)) { |
3835 | free(linetitle); |
3836 | continue; |
3837 | } |
3838 | free(linetitle); |
3839 | } |
3840 | |
3841 | if (prefix) { |
3842 | int prefixLen = strlen(prefix); |
3843 | if (!strncmp(initrd, prefix, prefixLen)) |
3844 | initrd += prefixLen; |
3845 | } |
3846 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3847 | if (endLine) |
3848 | removeLine(entry, endLine); |
3849 | line = |
3850 | addLine(entry, cfg->cfi, |
3851 | preferredLineType(LT_MBMODULE, cfg->cfi), |
3852 | kernelLine->indent, initrd); |
3853 | if (!line) |
3854 | return 1; |
3855 | if (endLine) { |
3856 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3857 | if (!line) |
3858 | return 1; |
3859 | } |
3860 | |
3861 | break; |
3862 | } |
3863 | |
3864 | return 0; |
3865 | } |
3866 | |
3867 | int updateInitrd(struct grubConfig *cfg, const char *image, |
3868 | const char *prefix, const char *initrd, const char *title) |
3869 | { |
3870 | struct singleEntry *entry; |
3871 | struct singleLine *line, *kernelLine, *endLine = NULL; |
3872 | int index = 0; |
3873 | |
3874 | if (!image) |
3875 | return 0; |
3876 | |
3877 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3878 | kernelLine = |
3879 | getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16, |
3880 | entry->lines); |
3881 | if (!kernelLine) |
3882 | continue; |
3883 | |
3884 | /* if title is supplied, the entry's title must match it. */ |
3885 | if (title) { |
3886 | char *linetitle; |
3887 | |
3888 | line = |
3889 | getLineByType(LT_TITLE | LT_MENUENTRY, |
3890 | entry->lines); |
3891 | if (!line) |
3892 | continue; |
3893 | |
3894 | linetitle = extractTitle(cfg, line); |
3895 | if (!linetitle) |
3896 | continue; |
3897 | if (strcmp(title, linetitle)) { |
3898 | free(linetitle); |
3899 | continue; |
3900 | } |
3901 | free(linetitle); |
3902 | } |
3903 | |
3904 | line = |
3905 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, |
3906 | entry->lines); |
3907 | if (line) |
3908 | removeLine(entry, line); |
3909 | if (prefix) { |
3910 | int prefixLen = strlen(prefix); |
3911 | if (!strncmp(initrd, prefix, prefixLen)) |
3912 | initrd += prefixLen; |
3913 | } |
3914 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3915 | if (endLine) |
3916 | removeLine(entry, endLine); |
3917 | enum lineType_e lt; |
3918 | switch (kernelLine->type) { |
3919 | case LT_KERNEL: |
3920 | lt = LT_INITRD; |
3921 | break; |
3922 | case LT_KERNEL_EFI: |
3923 | lt = LT_INITRD_EFI; |
3924 | break; |
3925 | case LT_KERNEL_16: |
3926 | lt = LT_INITRD_16; |
3927 | break; |
3928 | default: |
3929 | lt = preferredLineType(LT_INITRD, cfg->cfi); |
3930 | } |
3931 | line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd); |
3932 | if (!line) |
3933 | return 1; |
3934 | if (endLine) { |
3935 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); |
3936 | if (!line) |
3937 | return 1; |
3938 | } |
3939 | |
3940 | break; |
3941 | } |
3942 | |
3943 | return 0; |
3944 | } |
3945 | |
3946 | int checkDeviceBootloader(const char *device, const unsigned char *boot) |
3947 | { |
3948 | int fd; |
3949 | unsigned char bootSect[512]; |
3950 | int offset; |
3951 | |
3952 | fd = open(device, O_RDONLY); |
3953 | if (fd < 0) { |
3954 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
3955 | device, strerror(errno)); |
3956 | return 1; |
3957 | } |
3958 | |
3959 | if (read(fd, bootSect, 512) != 512) { |
3960 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
3961 | device, strerror(errno)); |
3962 | return 1; |
3963 | } |
3964 | close(fd); |
3965 | |
3966 | /* first three bytes should match, a jmp short should be in there */ |
3967 | if (memcmp(boot, bootSect, 3)) |
3968 | return 0; |
3969 | |
3970 | if (boot[1] == JMP_SHORT_OPCODE) { |
3971 | offset = boot[2] + 2; |
3972 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { |
3973 | offset = (boot[3] << 8) + boot[2] + 2; |
3974 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
3975 | offset = boot[1] + 2; |
3976 | /* |
3977 | * it looks like grub, when copying stage1 into the mbr, |
3978 | * patches stage1 right after the JMP location, replacing |
3979 | * other instructions such as JMPs for NOOPs. So, relax the |
3980 | * check a little bit by skipping those different bytes. |
3981 | */ |
3982 | if ((bootSect[offset + 1] == NOOP_OPCODE) |
3983 | && (bootSect[offset + 2] == NOOP_OPCODE)) { |
3984 | offset = offset + 3; |
3985 | } |
3986 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
3987 | offset = (boot[2] << 8) + boot[1] + 2; |
3988 | } else { |
3989 | return 0; |
3990 | } |
3991 | |
3992 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) |
3993 | return 0; |
3994 | |
3995 | return 2; |
3996 | } |
3997 | |
3998 | int checkLiloOnRaid(char *mdDev, const unsigned char *boot) |
3999 | { |
4000 | int fd; |
4001 | char buf[65536]; |
4002 | char *end; |
4003 | char *chptr; |
4004 | char *chptr2; |
4005 | int rc; |
4006 | |
4007 | /* it's on raid; we need to parse /proc/mdstat and check all of the |
4008 | *raw* devices listed in there */ |
4009 | |
4010 | if (!strncmp(mdDev, "/dev/", 5)) |
4011 | mdDev += 5; |
4012 | |
4013 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { |
4014 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), |
4015 | strerror(errno)); |
4016 | return 2; |
4017 | } |
4018 | |
4019 | rc = read(fd, buf, sizeof(buf) - 1); |
4020 | if (rc < 0 || rc == (sizeof(buf) - 1)) { |
4021 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), |
4022 | strerror(errno)); |
4023 | close(fd); |
4024 | return 2; |
4025 | } |
4026 | close(fd); |
4027 | buf[rc] = '\0'; |
4028 | |
4029 | chptr = buf; |
4030 | while (*chptr) { |
4031 | end = strchr(chptr, '\n'); |
4032 | if (!end) |
4033 | break; |
4034 | *end = '\0'; |
4035 | |
4036 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && |
4037 | chptr[strlen(mdDev)] == ' ') { |
4038 | |
4039 | /* found the device */ |
4040 | while (*chptr && *chptr != ':') |
4041 | chptr++; |
4042 | chptr++; |
4043 | while (*chptr && isspace(*chptr)) |
4044 | chptr++; |
4045 | |
4046 | /* skip the "active" bit */ |
4047 | while (*chptr && !isspace(*chptr)) |
4048 | chptr++; |
4049 | while (*chptr && isspace(*chptr)) |
4050 | chptr++; |
4051 | |
4052 | /* skip the raid level */ |
4053 | while (*chptr && !isspace(*chptr)) |
4054 | chptr++; |
4055 | while (*chptr && isspace(*chptr)) |
4056 | chptr++; |
4057 | |
4058 | /* everything else is partition stuff */ |
4059 | while (*chptr) { |
4060 | chptr2 = chptr; |
4061 | while (*chptr2 && *chptr2 != '[') |
4062 | chptr2++; |
4063 | if (!*chptr2) |
4064 | break; |
4065 | |
4066 | /* yank off the numbers at the end */ |
4067 | chptr2--; |
4068 | while (isdigit(*chptr2) && chptr2 > chptr) |
4069 | chptr2--; |
4070 | chptr2++; |
4071 | *chptr2 = '\0'; |
4072 | |
4073 | /* Better, now we need the /dev/ back. We're |
4074 | * done with everything before this point, so |
4075 | * we can just put the /dev/ part there. |
4076 | * There will always be room. */ |
4077 | memcpy(chptr - 5, "/dev/", 5); |
4078 | rc = checkDeviceBootloader(chptr - 5, boot); |
4079 | if (rc != 2) { |
4080 | return rc; |
4081 | } |
4082 | |
4083 | chptr = chptr2 + 1; |
4084 | /* skip the [11] bit */ |
4085 | while (*chptr && !isspace(*chptr)) |
4086 | chptr++; |
4087 | /* and move to the next one */ |
4088 | while (*chptr && isspace(*chptr)) |
4089 | chptr++; |
4090 | } |
4091 | |
4092 | /* we're good to go */ |
4093 | return 2; |
4094 | } |
4095 | |
4096 | chptr = end + 1; |
4097 | } |
4098 | |
4099 | fprintf(stderr, |
4100 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), |
4101 | mdDev); |
4102 | return 0; |
4103 | } |
4104 | |
4105 | int checkForLilo(struct grubConfig *config) |
4106 | { |
4107 | int fd; |
4108 | unsigned char boot[512]; |
4109 | struct singleLine *line; |
4110 | |
4111 | for (line = config->theLines; line; line = line->next) |
4112 | if (line->type == LT_BOOT) |
4113 | break; |
4114 | |
4115 | if (!line) { |
4116 | fprintf(stderr, |
4117 | _ |
4118 | ("grubby: no boot line found in lilo configuration\n")); |
4119 | return 1; |
4120 | } |
4121 | |
4122 | if (line->numElements != 2) |
4123 | return 1; |
4124 | |
4125 | fd = open("/boot/boot.b", O_RDONLY); |
4126 | if (fd < 0) { |
4127 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), |
4128 | "/boot/boot.b", strerror(errno)); |
4129 | return 1; |
4130 | } |
4131 | |
4132 | if (read(fd, boot, 512) != 512) { |
4133 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4134 | "/boot/boot.b", strerror(errno)); |
4135 | return 1; |
4136 | } |
4137 | close(fd); |
4138 | |
4139 | if (!strncmp("/dev/md", line->elements[1].item, 7)) |
4140 | return checkLiloOnRaid(line->elements[1].item, boot); |
4141 | |
4142 | return checkDeviceBootloader(line->elements[1].item, boot); |
4143 | } |
4144 | |
4145 | int checkForGrub2(struct grubConfig *config) |
4146 | { |
4147 | if (!access("/etc/grub.d/", R_OK)) |
4148 | return 2; |
4149 | |
4150 | return 1; |
4151 | } |
4152 | |
4153 | int checkForGrub(struct grubConfig *config) |
4154 | { |
4155 | int fd; |
4156 | unsigned char bootSect[512]; |
4157 | char *boot; |
4158 | int onSuse = isSuseSystem(); |
4159 | |
4160 | if (onSuse) { |
4161 | if (parseSuseGrubConf(NULL, &boot)) |
4162 | return 0; |
4163 | } else { |
4164 | if (parseSysconfigGrub(NULL, &boot)) |
4165 | return 0; |
4166 | } |
4167 | |
4168 | /* assume grub is not installed -- not an error condition */ |
4169 | if (!boot) |
4170 | return 0; |
4171 | |
4172 | fd = open("/boot/grub/stage1", O_RDONLY); |
4173 | if (fd < 0) |
4174 | /* this doesn't exist if grub hasn't been installed */ |
4175 | return 0; |
4176 | |
4177 | if (read(fd, bootSect, 512) != 512) { |
4178 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4179 | "/boot/grub/stage1", strerror(errno)); |
4180 | close(fd); |
4181 | return 1; |
4182 | } |
4183 | close(fd); |
4184 | |
4185 | /* The more elaborate checks do not work on SuSE. The checks done |
4186 | * seem to be reasonble (at least for now), so just return success |
4187 | */ |
4188 | if (onSuse) |
4189 | return 2; |
4190 | |
4191 | return checkDeviceBootloader(boot, bootSect); |
4192 | } |
4193 | |
4194 | int checkForExtLinux(struct grubConfig *config) |
4195 | { |
4196 | int fd; |
4197 | unsigned char bootSect[512]; |
4198 | char *boot; |
4199 | char executable[] = "/boot/extlinux/extlinux"; |
4200 | |
4201 | printf("entered: checkForExtLinux()\n"); |
4202 | |
4203 | if (parseSysconfigGrub(NULL, &boot)) |
4204 | return 0; |
4205 | |
4206 | /* assume grub is not installed -- not an error condition */ |
4207 | if (!boot) |
4208 | return 0; |
4209 | |
4210 | fd = open(executable, O_RDONLY); |
4211 | if (fd < 0) |
4212 | /* this doesn't exist if grub hasn't been installed */ |
4213 | return 0; |
4214 | |
4215 | if (read(fd, bootSect, 512) != 512) { |
4216 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), |
4217 | executable, strerror(errno)); |
4218 | return 1; |
4219 | } |
4220 | close(fd); |
4221 | |
4222 | return checkDeviceBootloader(boot, bootSect); |
4223 | } |
4224 | |
4225 | int checkForYaboot(struct grubConfig *config) |
4226 | { |
4227 | /* |
4228 | * This is a simplistic check that we consider good enough for own puporses |
4229 | * |
4230 | * If we were to properly check if yaboot is *installed* we'd need to: |
4231 | * 1) get the system boot device (LT_BOOT) |
4232 | * 2) considering it's a raw filesystem, check if the yaboot binary matches |
4233 | * the content on the boot device |
4234 | * 3) if not, copy the binary to a temporary file and run "addnote" on it |
4235 | * 4) check again if binary and boot device contents match |
4236 | */ |
4237 | if (!access("/etc/yaboot.conf", R_OK)) |
4238 | return 2; |
4239 | |
4240 | return 1; |
4241 | } |
4242 | |
4243 | int checkForElilo(struct grubConfig *config) |
4244 | { |
4245 | if (!access("/etc/elilo.conf", R_OK)) |
4246 | return 2; |
4247 | |
4248 | return 1; |
4249 | } |
4250 | |
4251 | static char *getRootSpecifier(char *str) |
4252 | { |
4253 | char *idx, *rootspec = NULL; |
4254 | |
4255 | if (*str == '(') { |
4256 | idx = rootspec = strdup(str); |
4257 | while (*idx && (*idx != ')') && (!isspace(*idx))) |
4258 | idx++; |
4259 | *(++idx) = '\0'; |
4260 | } |
4261 | return rootspec; |
4262 | } |
4263 | |
4264 | static char *getInitrdVal(struct grubConfig *config, |
4265 | const char *prefix, struct singleLine *tmplLine, |
4266 | const char *newKernelInitrd, |
4267 | const char **extraInitrds, int extraInitrdCount) |
4268 | { |
4269 | char *initrdVal, *end; |
4270 | int i; |
4271 | size_t totalSize; |
4272 | size_t prefixLen; |
4273 | char separatorChar; |
4274 | |
4275 | prefixLen = strlen(prefix); |
4276 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ; |
4277 | |
4278 | for (i = 0; i < extraInitrdCount; i++) { |
4279 | totalSize += sizeof(separatorChar); |
4280 | totalSize += strlen(extraInitrds[i]) - prefixLen; |
4281 | } |
4282 | |
4283 | initrdVal = end = malloc(totalSize); |
4284 | |
4285 | end = stpcpy(end, newKernelInitrd + prefixLen); |
4286 | |
4287 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; |
4288 | for (i = 0; i < extraInitrdCount; i++) { |
4289 | const char *extraInitrd; |
4290 | int j; |
4291 | |
4292 | extraInitrd = extraInitrds[i] + prefixLen; |
4293 | /* Don't add entries that are already there */ |
4294 | if (tmplLine != NULL) { |
4295 | for (j = 2; j < tmplLine->numElements; j++) |
4296 | if (strcmp |
4297 | (extraInitrd, |
4298 | tmplLine->elements[j].item) == 0) |
4299 | break; |
4300 | |
4301 | if (j != tmplLine->numElements) |
4302 | continue; |
4303 | } |
4304 | |
4305 | *end++ = separatorChar; |
4306 | end = stpcpy(end, extraInitrd); |
4307 | } |
4308 | |
4309 | return initrdVal; |
4310 | } |
4311 | |
4312 | int addNewKernel(struct grubConfig *config, struct singleEntry *template, |
4313 | const char *prefix, |
4314 | const char *newKernelPath, const char *newKernelTitle, |
4315 | const char *newKernelArgs, const char *newKernelInitrd, |
4316 | const char **extraInitrds, int extraInitrdCount, |
4317 | const char *newMBKernel, const char *newMBKernelArgs, |
4318 | const char *newDevTreePath, int newIndex) |
4319 | { |
4320 | struct singleEntry *new, *entry, *prev = NULL; |
4321 | struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL; |
4322 | int needs; |
4323 | char *indexs; |
4324 | char *chptr; |
4325 | int rc; |
4326 | |
4327 | if (!newKernelPath) |
4328 | return 0; |
4329 | |
4330 | rc = asprintf(&indexs, "%d", newIndex); |
4331 | if (rc < 0) |
4332 | return 1; |
4333 | |
4334 | /* if the newKernelTitle is too long silently munge it into something |
4335 | * we can live with. truncating is first check, then we'll just mess with |
4336 | * it until it looks better */ |
4337 | if (config->cfi->maxTitleLength && |
4338 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { |
4339 | char *buf = alloca(config->cfi->maxTitleLength + 7); |
4340 | char *numBuf = alloca(config->cfi->maxTitleLength + 1); |
4341 | int i = 1; |
4342 | |
4343 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, |
4344 | newKernelTitle); |
4345 | while (findEntryByPath(config, buf, NULL, NULL)) { |
4346 | sprintf(numBuf, "%d", i++); |
4347 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); |
4348 | } |
4349 | |
4350 | newKernelTitle = buf + 6; |
4351 | } |
4352 | |
4353 | new = malloc(sizeof(*new)); |
4354 | new->skip = 0; |
4355 | new->multiboot = 0; |
4356 | new->lines = NULL; |
4357 | entry = config->entries; |
4358 | for (unsigned int i = 0; i < newIndex; i++) { |
4359 | if (!entry) |
4360 | break; |
4361 | prev = entry; |
4362 | entry = entry->next; |
4363 | } |
4364 | new->next = entry; |
4365 | |
4366 | if (prev) |
4367 | prev->next = new; |
4368 | else |
4369 | config->entries = new; |
4370 | |
4371 | /* copy/update from the template */ |
4372 | needs = NEED_KERNEL | NEED_TITLE; |
4373 | if (newKernelInitrd) |
4374 | needs |= NEED_INITRD; |
4375 | if (newMBKernel) { |
4376 | needs |= NEED_MB; |
4377 | new->multiboot = 1; |
4378 | } |
4379 | if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi)) |
4380 | needs |= NEED_DEVTREE; |
4381 | |
4382 | if (template) { |
4383 | for (masterLine = template->lines; |
4384 | masterLine && (tmplLine = lineDup(masterLine)); |
4385 | lineFree(tmplLine), masterLine = masterLine->next) { |
4386 | dbgPrintf("addNewKernel processing %d\n", |
4387 | tmplLine->type); |
4388 | |
4389 | /* skip comments */ |
4390 | chptr = tmplLine->indent; |
4391 | while (*chptr && isspace(*chptr)) |
4392 | chptr++; |
4393 | if (*chptr == '#') |
4394 | continue; |
4395 | |
4396 | if (iskernel(tmplLine->type) |
4397 | && tmplLine->numElements >= 2) { |
4398 | if (!template->multiboot && (needs & NEED_MB)) { |
4399 | /* it's not a multiboot template and |
4400 | * this is the kernel line. Try to |
4401 | * be intelligent about inserting the |
4402 | * hypervisor at the same time. |
4403 | */ |
4404 | if (config->cfi->mbHyperFirst) { |
4405 | /* insert the hypervisor first */ |
4406 | newLine = |
4407 | addLine(new, config->cfi, |
4408 | LT_HYPER, |
4409 | tmplLine->indent, |
4410 | newMBKernel + |
4411 | strlen(prefix)); |
4412 | /* set up for adding the |
4413 | * kernel line */ |
4414 | free(tmplLine->indent); |
4415 | tmplLine->indent = |
4416 | strdup(config-> |
4417 | secondaryIndent); |
4418 | needs &= ~NEED_MB; |
4419 | } |
4420 | if (needs & NEED_KERNEL) { |
4421 | /* use addLineTmpl to |
4422 | * preserve line elements, |
4423 | * otherwise we could just |
4424 | * call addLine. |
4425 | * Unfortunately this means |
4426 | * making some changes to the |
4427 | * template such as the |
4428 | * indent change above and |
4429 | * the type change below. |
4430 | */ |
4431 | struct keywordTypes *mbm_kw = |
4432 | getKeywordByType |
4433 | (LT_MBMODULE, config->cfi); |
4434 | if (mbm_kw) { |
4435 | tmplLine->type = |
4436 | LT_MBMODULE; |
4437 | free(tmplLine-> |
4438 | elements[0].item); |
4439 | tmplLine->elements[0]. |
4440 | item = |
4441 | strdup(mbm_kw->key); |
4442 | } |
4443 | newLine = |
4444 | addLineTmpl(new, tmplLine, |
4445 | newLine, |
4446 | newKernelPath + |
4447 | strlen(prefix), |
4448 | config->cfi); |
4449 | needs &= ~NEED_KERNEL; |
4450 | } |
4451 | if (needs & NEED_MB) { /* !mbHyperFirst */ |
4452 | newLine = |
4453 | addLine(new, config->cfi, |
4454 | LT_HYPER, |
4455 | config-> |
4456 | secondaryIndent, |
4457 | newMBKernel + |
4458 | strlen(prefix)); |
4459 | needs &= ~NEED_MB; |
4460 | } |
4461 | } else if (needs & NEED_KERNEL) { |
4462 | newLine = |
4463 | addLineTmpl(new, tmplLine, newLine, |
4464 | newKernelPath + |
4465 | strlen(prefix), |
4466 | config->cfi); |
4467 | needs &= ~NEED_KERNEL; |
4468 | } |
4469 | |
4470 | } else if (tmplLine->type == LT_HYPER && |
4471 | tmplLine->numElements >= 2) { |
4472 | if (needs & NEED_MB) { |
4473 | newLine = |
4474 | addLineTmpl(new, tmplLine, newLine, |
4475 | newMBKernel + |
4476 | strlen(prefix), |
4477 | config->cfi); |
4478 | needs &= ~NEED_MB; |
4479 | } |
4480 | |
4481 | } else if (tmplLine->type == LT_MBMODULE && |
4482 | tmplLine->numElements >= 2) { |
4483 | if (new->multiboot) { |
4484 | if (needs & NEED_KERNEL) { |
4485 | newLine = |
4486 | addLineTmpl(new, tmplLine, |
4487 | newLine, |
4488 | newKernelPath + |
4489 | strlen(prefix), |
4490 | config->cfi); |
4491 | needs &= ~NEED_KERNEL; |
4492 | } else if (config->cfi->mbInitRdIsModule |
4493 | && (needs & NEED_INITRD)) { |
4494 | char *initrdVal; |
4495 | initrdVal = |
4496 | getInitrdVal(config, prefix, |
4497 | tmplLine, |
4498 | newKernelInitrd, |
4499 | extraInitrds, |
4500 | extraInitrdCount); |
4501 | newLine = |
4502 | addLineTmpl(new, tmplLine, |
4503 | newLine, |
4504 | initrdVal, |
4505 | config->cfi); |
4506 | free(initrdVal); |
4507 | needs &= ~NEED_INITRD; |
4508 | } |
4509 | } else if (needs & NEED_KERNEL) { |
4510 | /* template is multi but new is not, |
4511 | * insert the kernel in the first |
4512 | * module slot |
4513 | */ |
4514 | tmplLine->type = |
4515 | preferredLineType(LT_KERNEL, |
4516 | config->cfi); |
4517 | free(tmplLine->elements[0].item); |
4518 | tmplLine->elements[0].item = |
4519 | strdup(getKeywordByType |
4520 | (tmplLine->type, |
4521 | config->cfi)->key); |
4522 | newLine = |
4523 | addLineTmpl(new, tmplLine, newLine, |
4524 | newKernelPath + |
4525 | strlen(prefix), |
4526 | config->cfi); |
4527 | needs &= ~NEED_KERNEL; |
4528 | } else if (needs & NEED_INITRD) { |
4529 | char *initrdVal; |
4530 | /* template is multi but new is not, |
4531 | * insert the initrd in the second |
4532 | * module slot |
4533 | */ |
4534 | tmplLine->type = |
4535 | preferredLineType(LT_INITRD, |
4536 | config->cfi); |
4537 | free(tmplLine->elements[0].item); |
4538 | tmplLine->elements[0].item = |
4539 | strdup(getKeywordByType |
4540 | (tmplLine->type, |
4541 | config->cfi)->key); |
4542 | initrdVal = |
4543 | getInitrdVal(config, prefix, |
4544 | tmplLine, |
4545 | newKernelInitrd, |
4546 | extraInitrds, |
4547 | extraInitrdCount); |
4548 | newLine = |
4549 | addLineTmpl(new, tmplLine, newLine, |
4550 | initrdVal, config->cfi); |
4551 | free(initrdVal); |
4552 | needs &= ~NEED_INITRD; |
4553 | } |
4554 | |
4555 | } else if (isinitrd(tmplLine->type) |
4556 | && tmplLine->numElements >= 2) { |
4557 | if (needs & NEED_INITRD && new->multiboot |
4558 | && !template->multiboot |
4559 | && config->cfi->mbInitRdIsModule) { |
4560 | /* make sure we don't insert the |
4561 | * module initrd before the module |
4562 | * kernel... if we don't do it here, |
4563 | * it will be inserted following the |
4564 | * template. |
4565 | */ |
4566 | if (!needs & NEED_KERNEL) { |
4567 | char *initrdVal; |
4568 | |
4569 | initrdVal = |
4570 | getInitrdVal(config, prefix, |
4571 | tmplLine, |
4572 | newKernelInitrd, |
4573 | extraInitrds, |
4574 | extraInitrdCount); |
4575 | newLine = |
4576 | addLine(new, config->cfi, |
4577 | LT_MBMODULE, |
4578 | config-> |
4579 | secondaryIndent, |
4580 | initrdVal); |
4581 | free(initrdVal); |
4582 | needs &= ~NEED_INITRD; |
4583 | } |
4584 | } else if (needs & NEED_INITRD) { |
4585 | char *initrdVal; |
4586 | initrdVal = |
4587 | getInitrdVal(config, prefix, |
4588 | tmplLine, |
4589 | newKernelInitrd, |
4590 | extraInitrds, |
4591 | extraInitrdCount); |
4592 | newLine = |
4593 | addLineTmpl(new, tmplLine, newLine, |
4594 | initrdVal, config->cfi); |
4595 | free(initrdVal); |
4596 | needs &= ~NEED_INITRD; |
4597 | } |
4598 | |
4599 | } else if (tmplLine->type == LT_MENUENTRY && |
4600 | (needs & NEED_TITLE)) { |
4601 | requote(tmplLine, config->cfi); |
4602 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4603 | strcpy(nkt, "'"); |
4604 | strcat(nkt, newKernelTitle); |
4605 | strcat(nkt, "'"); |
4606 | newLine = |
4607 | addLineTmpl(new, tmplLine, newLine, nkt, |
4608 | config->cfi); |
4609 | free(nkt); |
4610 | needs &= ~NEED_TITLE; |
4611 | } else if (tmplLine->type == LT_TITLE && |
4612 | (needs & NEED_TITLE)) { |
4613 | if (tmplLine->numElements >= 2) { |
4614 | newLine = |
4615 | addLineTmpl(new, tmplLine, newLine, |
4616 | newKernelTitle, |
4617 | config->cfi); |
4618 | needs &= ~NEED_TITLE; |
4619 | } else if (tmplLine->numElements == 1 && |
4620 | config->cfi->titleBracketed) { |
4621 | /* addLineTmpl doesn't handle |
4622 | * titleBracketed */ |
4623 | newLine = |
4624 | addLine(new, config->cfi, LT_TITLE, |
4625 | tmplLine->indent, |
4626 | newKernelTitle); |
4627 | needs &= ~NEED_TITLE; |
4628 | } |
4629 | } else if (tmplLine->type == LT_ECHO) { |
4630 | requote(tmplLine, config->cfi); |
4631 | static const char *prefix = "'Loading "; |
4632 | if (tmplLine->numElements > 1 && |
4633 | strstr(tmplLine->elements[1].item, prefix) |
4634 | && masterLine->next |
4635 | && iskernel(masterLine->next->type)) { |
4636 | char *newTitle = |
4637 | malloc(strlen(prefix) + |
4638 | strlen(newKernelTitle) + 2); |
4639 | |
4640 | strcpy(newTitle, prefix); |
4641 | strcat(newTitle, newKernelTitle); |
4642 | strcat(newTitle, "'"); |
4643 | newLine = |
4644 | addLine(new, config->cfi, LT_ECHO, |
4645 | tmplLine->indent, newTitle); |
4646 | free(newTitle); |
4647 | } else { |
4648 | /* pass through other lines from the |
4649 | * template */ |
4650 | newLine = |
4651 | addLineTmpl(new, tmplLine, newLine, |
4652 | NULL, config->cfi); |
4653 | } |
4654 | } else if (tmplLine->type == LT_DEVTREE && |
4655 | tmplLine->numElements == 2 |
4656 | && newDevTreePath) { |
4657 | newLine = |
4658 | addLineTmpl(new, tmplLine, newLine, |
4659 | newDevTreePath + strlen(prefix), |
4660 | config->cfi); |
4661 | needs &= ~NEED_DEVTREE; |
4662 | } else if (tmplLine->type == LT_ENTRY_END |
4663 | && needs & NEED_DEVTREE) { |
4664 | const char *ndtp = newDevTreePath; |
4665 | if (!strncmp |
4666 | (newDevTreePath, prefix, strlen(prefix))) |
4667 | ndtp += strlen(prefix); |
4668 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4669 | config->secondaryIndent, |
4670 | ndtp); |
4671 | needs &= ~NEED_DEVTREE; |
4672 | newLine = |
4673 | addLineTmpl(new, tmplLine, newLine, NULL, |
4674 | config->cfi); |
4675 | } else { |
4676 | /* pass through other lines from the template */ |
4677 | newLine = |
4678 | addLineTmpl(new, tmplLine, newLine, NULL, |
4679 | config->cfi); |
4680 | } |
4681 | } |
4682 | |
4683 | } else { |
4684 | /* don't have a template, so start the entry with the |
4685 | * appropriate starting line |
4686 | */ |
4687 | switch (config->cfi->entryStart) { |
4688 | case LT_KERNEL: |
4689 | case LT_KERNEL_EFI: |
4690 | case LT_KERNEL_16: |
4691 | if (new->multiboot && config->cfi->mbHyperFirst) { |
4692 | /* fall through to LT_HYPER */ |
4693 | } else { |
4694 | newLine = addLine(new, config->cfi, |
4695 | preferredLineType(LT_KERNEL, |
4696 | config-> |
4697 | cfi), |
4698 | config->primaryIndent, |
4699 | newKernelPath + |
4700 | strlen(prefix)); |
4701 | needs &= ~NEED_KERNEL; |
4702 | break; |
4703 | } |
4704 | |
4705 | case LT_HYPER: |
4706 | newLine = addLine(new, config->cfi, LT_HYPER, |
4707 | config->primaryIndent, |
4708 | newMBKernel + strlen(prefix)); |
4709 | needs &= ~NEED_MB; |
4710 | break; |
4711 | |
4712 | case LT_MENUENTRY:{ |
4713 | char *nkt = malloc(strlen(newKernelTitle) + 3); |
4714 | strcpy(nkt, "'"); |
4715 | strcat(nkt, newKernelTitle); |
4716 | strcat(nkt, "'"); |
4717 | newLine = |
4718 | addLine(new, config->cfi, LT_MENUENTRY, |
4719 | config->primaryIndent, nkt); |
4720 | free(nkt); |
4721 | needs &= ~NEED_TITLE; |
4722 | needs |= NEED_END; |
4723 | break; |
4724 | } |
4725 | case LT_TITLE: |
4726 | if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above) |
4727 | char *templabel; |
4728 | int x = 0, y = 0; |
4729 | |
4730 | templabel = strdup(newKernelTitle); |
4731 | while (templabel[x]) { |
4732 | if (templabel[x] == ' ') { |
4733 | y = x; |
4734 | while (templabel[y]) { |
4735 | templabel[y] = |
4736 | templabel[y + 1]; |
4737 | y++; |
4738 | } |
4739 | } |
4740 | x++; |
4741 | } |
4742 | newLine = addLine(new, config->cfi, LT_TITLE, |
4743 | config->primaryIndent, |
4744 | templabel); |
4745 | free(templabel); |
4746 | } else { |
4747 | newLine = addLine(new, config->cfi, LT_TITLE, |
4748 | config->primaryIndent, |
4749 | newKernelTitle); |
4750 | } |
4751 | needs &= ~NEED_TITLE; |
4752 | break; |
4753 | |
4754 | default: |
4755 | abort(); |
4756 | } |
4757 | } |
4758 | |
4759 | struct singleLine *endLine = NULL; |
4760 | endLine = getLineByType(LT_ENTRY_END, new->lines); |
4761 | if (endLine) { |
4762 | removeLine(new, endLine); |
4763 | needs |= NEED_END; |
4764 | } |
4765 | |
4766 | /* add the remainder of the lines, i.e. those that either |
4767 | * weren't present in the template, or in the case of no template, |
4768 | * all the lines following the entryStart. |
4769 | */ |
4770 | if (needs & NEED_TITLE) { |
4771 | newLine = addLine(new, config->cfi, LT_TITLE, |
4772 | config->secondaryIndent, newKernelTitle); |
4773 | needs &= ~NEED_TITLE; |
4774 | } |
4775 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
4776 | newLine = addLine(new, config->cfi, LT_HYPER, |
4777 | config->secondaryIndent, |
4778 | newMBKernel + strlen(prefix)); |
4779 | needs &= ~NEED_MB; |
4780 | } |
4781 | if (needs & NEED_KERNEL) { |
4782 | newLine = addLine(new, config->cfi, |
4783 | (new->multiboot |
4784 | && getKeywordByType(LT_MBMODULE, |
4785 | config->cfi)) |
4786 | ? LT_MBMODULE : preferredLineType(LT_KERNEL, |
4787 | config-> |
4788 | cfi), |
4789 | config->secondaryIndent, |
4790 | newKernelPath + strlen(prefix)); |
4791 | needs &= ~NEED_KERNEL; |
4792 | } |
4793 | if (needs & NEED_MB) { |
4794 | newLine = addLine(new, config->cfi, LT_HYPER, |
4795 | config->secondaryIndent, |
4796 | newMBKernel + strlen(prefix)); |
4797 | needs &= ~NEED_MB; |
4798 | } |
4799 | if (needs & NEED_INITRD) { |
4800 | char *initrdVal; |
4801 | initrdVal = |
4802 | getInitrdVal(config, prefix, NULL, newKernelInitrd, |
4803 | extraInitrds, extraInitrdCount); |
4804 | newLine = |
4805 | addLine(new, config->cfi, |
4806 | (new->multiboot |
4807 | && getKeywordByType(LT_MBMODULE, config->cfi)) |
4808 | ? LT_MBMODULE : preferredLineType(LT_INITRD, |
4809 | config->cfi), |
4810 | config->secondaryIndent, initrdVal); |
4811 | free(initrdVal); |
4812 | needs &= ~NEED_INITRD; |
4813 | } |
4814 | if (needs & NEED_DEVTREE) { |
4815 | newLine = addLine(new, config->cfi, LT_DEVTREE, |
4816 | config->secondaryIndent, newDevTreePath); |
4817 | needs &= ~NEED_DEVTREE; |
4818 | } |
4819 | |
4820 | /* NEEDS_END must be last on bootloaders that need it... */ |
4821 | if (needs & NEED_END) { |
4822 | newLine = addLine(new, config->cfi, LT_ENTRY_END, |
4823 | config->secondaryIndent, NULL); |
4824 | needs &= ~NEED_END; |
4825 | } |
4826 | |
4827 | if (needs) { |
4828 | printf(_("grubby: needs=%d, aborting\n"), needs); |
4829 | abort(); |
4830 | } |
4831 | |
4832 | if (updateImage(config, indexs, prefix, newKernelArgs, NULL, |
4833 | newMBKernelArgs, NULL)) { |
4834 | config->isModified = 1; |
4835 | return 1; |
4836 | } |
4837 | |
4838 | return 0; |
4839 | } |
4840 | |
4841 | int main(int argc, const char **argv) |
4842 | { |
4843 | poptContext optCon; |
4844 | const char *grubConfig = NULL; |
4845 | char *outputFile = NULL; |
4846 | int arg = 0; |
4847 | int flags = 0; |
4848 | int badImageOkay = 0; |
4849 | int configureGrub2 = 0; |
4850 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
4851 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; |
4852 | int configureExtLinux = 0; |
4853 | int bootloaderProbe = 0; |
4854 | int extraInitrdCount = 0; |
4855 | char *updateKernelPath = NULL; |
4856 | char *newKernelPath = NULL; |
4857 | char *removeKernelPath = NULL; |
4858 | char *newKernelArgs = NULL; |
4859 | char *newKernelInitrd = NULL; |
4860 | char *newKernelTitle = NULL; |
4861 | char *newDevTreePath = NULL; |
4862 | char *newMBKernel = NULL; |
4863 | char *newMBKernelArgs = NULL; |
4864 | int newIndex = 0; |
4865 | char *removeMBKernelArgs = NULL; |
4866 | char *removeMBKernel = NULL; |
4867 | char *bootPrefix = NULL; |
4868 | char *defaultKernel = NULL; |
4869 | char *removeArgs = NULL; |
4870 | char *kernelInfo = NULL; |
4871 | char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
4872 | char *envPath = NULL; |
4873 | const char *chptr = NULL; |
4874 | struct configFileInfo *cfi = NULL; |
4875 | struct grubConfig *config; |
4876 | struct singleEntry *template = NULL; |
4877 | int copyDefault = 0, makeDefault = 0; |
4878 | int displayDefault = 0; |
4879 | int displayDefaultIndex = 0; |
4880 | int displayDefaultTitle = 0; |
4881 | int defaultIndex = -1; |
4882 | struct poptOption options[] = { |
4883 | {"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, |
4884 | _("add an entry for the specified kernel"), _("kernel-path")}, |
4885 | {"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, |
4886 | _("add an entry for the specified multiboot kernel"), NULL}, |
4887 | {"args", 0, POPT_ARG_STRING, &newKernelArgs, 0, |
4888 | _("default arguments for the new kernel or new arguments for " |
4889 | "kernel being updated"), _("args")}, |
4890 | {"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, |
4891 | _("default arguments for the new multiboot kernel or " |
4892 | "new arguments for multiboot kernel being updated"), NULL}, |
4893 | {"bad-image-okay", 0, 0, &badImageOkay, 0, |
4894 | _ |
4895 | ("don't sanity check images in boot entries (for testing only)"), |
4896 | NULL}, |
4897 | {"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, |
4898 | _ |
4899 | ("filesystem which contains /boot directory (for testing only)"), |
4900 | _("bootfs")}, |
4901 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
4902 | {"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
4903 | _("check which bootloader is installed on boot sector")}, |
4904 | #endif |
4905 | {"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, |
4906 | _("path to grub config file to update (\"-\" for stdin)"), |
4907 | _("path")}, |
4908 | {"copy-default", 0, 0, ©Default, 0, |
4909 | _("use the default boot entry as a template for the new entry " |
4910 | "being added; if the default is not a linux image, or if " |
4911 | "the kernel referenced by the default image does not exist, " |
4912 | "the first linux entry whose kernel does exist is used as the " |
4913 | "template"), NULL}, |
4914 | {"debug", 0, 0, &debug, 0, |
4915 | _("print debugging information for failures")}, |
4916 | {"default-kernel", 0, 0, &displayDefault, 0, |
4917 | _("display the path of the default kernel")}, |
4918 | {"default-index", 0, 0, &displayDefaultIndex, 0, |
4919 | _("display the index of the default kernel")}, |
4920 | {"default-title", 0, 0, &displayDefaultTitle, 0, |
4921 | _("display the title of the default kernel")}, |
4922 | {"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4923 | _("device tree file for new stanza"), _("dtb-path")}, |
4924 | {"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4925 | _("device tree directory for new stanza"), _("dtb-path")}, |
4926 | {"elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
4927 | _("configure elilo bootloader")}, |
4928 | {"efi", 0, POPT_ARG_NONE, &isEfi, 0, |
4929 | _("force grub2 stanzas to use efi")}, |
4930 | {"env", 0, POPT_ARG_STRING, &envPath, 0, |
4931 | _("path for environment data"), |
4932 | _("path")}, |
4933 | {"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
4934 | _("configure extlinux bootloader (from syslinux)")}, |
4935 | {"grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
4936 | _("configure grub bootloader")}, |
4937 | {"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
4938 | _("configure grub2 bootloader")}, |
4939 | {"info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
4940 | _("display boot information for specified kernel"), |
4941 | _("kernel-path")}, |
4942 | {"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, |
4943 | _("initrd image for the new kernel"), _("initrd-path")}, |
4944 | {"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
4945 | _ |
4946 | ("auxiliary initrd image for things other than the new kernel"), |
4947 | _("initrd-path")}, |
4948 | {"lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
4949 | _("configure lilo bootloader")}, |
4950 | {"make-default", 0, 0, &makeDefault, 0, |
4951 | _("make the newly added entry the default boot entry"), NULL}, |
4952 | {"output-file", 'o', POPT_ARG_STRING, &outputFile, 0, |
4953 | _("path to output updated config file (\"-\" for stdout)"), |
4954 | _("path")}, |
4955 | {"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, |
4956 | _("remove kernel arguments"), NULL}, |
4957 | {"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, |
4958 | _("remove multiboot kernel arguments"), NULL}, |
4959 | {"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, |
4960 | _("remove all entries for the specified kernel"), |
4961 | _("kernel-path")}, |
4962 | {"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, |
4963 | _("remove all entries for the specified multiboot kernel"), |
4964 | NULL}, |
4965 | {"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, |
4966 | _("make the first entry referencing the specified kernel " |
4967 | "the default"), _("kernel-path")}, |
4968 | {"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, |
4969 | _("make the given entry index the default entry"), |
4970 | _("entry-index")}, |
4971 | {"set-index", 0, POPT_ARG_INT, &newIndex, 0, |
4972 | _("use the given index when creating a new entry"), |
4973 | _("entry-index")}, |
4974 | {"silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
4975 | _("configure silo bootloader")}, |
4976 | {"title", 0, POPT_ARG_STRING, &newKernelTitle, 0, |
4977 | _("title to use for the new kernel entry"), _("entry-title")}, |
4978 | {"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, |
4979 | _("updated information for the specified kernel"), |
4980 | _("kernel-path")}, |
4981 | {"version", 'v', 0, NULL, 'v', |
4982 | _("print the version of this program and exit"), NULL}, |
4983 | {"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, |
4984 | _("configure yaboot bootloader")}, |
4985 | {"zipl", 0, POPT_ARG_NONE, &configureZipl, 0, |
4986 | _("configure zipl bootloader")}, |
4987 | POPT_AUTOHELP {0, 0, 0, 0, 0} |
4988 | }; |
4989 | |
4990 | useextlinuxmenu = 0; |
4991 | |
4992 | int i = 0; |
4993 | for (int j = 1; j < argc; j++) |
4994 | i += strlen(argv[j]) + 1; |
4995 | saved_command_line = malloc(i); |
4996 | if (!saved_command_line) { |
4997 | fprintf(stderr, "grubby: %m\n"); |
4998 | exit(1); |
4999 | } |
5000 | saved_command_line[0] = '\0'; |
5001 | for (int j = 1; j < argc; j++) { |
5002 | strcat(saved_command_line, argv[j]); |
5003 | strncat(saved_command_line, j == argc - 1 ? "" : " ", 1); |
5004 | } |
5005 | |
5006 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
5007 | poptReadDefaultConfig(optCon, 1); |
5008 | |
5009 | while ((arg = poptGetNextOpt(optCon)) >= 0) { |
5010 | switch (arg) { |
5011 | case 'v': |
5012 | printf("grubby version %s\n", VERSION); |
5013 | exit(0); |
5014 | break; |
5015 | case 'i': |
5016 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { |
5017 | extraInitrds[extraInitrdCount++] = |
5018 | strdup(poptGetOptArg(optCon)); |
5019 | } else { |
5020 | fprintf(stderr, |
5021 | _ |
5022 | ("grubby: extra initrd maximum is %d\n"), |
5023 | extraInitrdCount); |
5024 | return 1; |
5025 | } |
5026 | break; |
5027 | } |
5028 | } |
5029 | |
5030 | if (arg < -1) { |
5031 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), |
5032 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), |
5033 | poptStrerror(arg)); |
5034 | return 1; |
5035 | } |
5036 | |
5037 | if ((chptr = poptGetArg(optCon))) { |
5038 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); |
5039 | return 1; |
5040 | } |
5041 | |
5042 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
5043 | configureYaboot + configureSilo + configureZipl + |
5044 | configureExtLinux) > 1) { |
5045 | fprintf(stderr, |
5046 | _("grubby: cannot specify multiple bootloaders\n")); |
5047 | return 1; |
5048 | } else if (bootloaderProbe && grubConfig) { |
5049 | fprintf(stderr, |
5050 | _ |
5051 | ("grubby: cannot specify config file with --bootloader-probe\n")); |
5052 | return 1; |
5053 | } else if (configureGrub2) { |
5054 | cfi = &grub2ConfigType; |
5055 | if (envPath) |
5056 | cfi->envFile = envPath; |
5057 | } else if (configureLilo) { |
5058 | cfi = &liloConfigType; |
5059 | } else if (configureGrub) { |
5060 | cfi = &grubConfigType; |
5061 | } else if (configureELilo) { |
5062 | cfi = &eliloConfigType; |
5063 | } else if (configureYaboot) { |
5064 | cfi = &yabootConfigType; |
5065 | } else if (configureSilo) { |
5066 | cfi = &siloConfigType; |
5067 | } else if (configureZipl) { |
5068 | cfi = &ziplConfigType; |
5069 | } else if (configureExtLinux) { |
5070 | cfi = &extlinuxConfigType; |
5071 | useextlinuxmenu = 1; |
5072 | } |
5073 | |
5074 | if (!cfi) { |
5075 | if (grub2FindConfig(&grub2ConfigType)) { |
5076 | cfi = &grub2ConfigType; |
5077 | if (envPath) |
5078 | cfi->envFile = envPath; |
5079 | } else |
5080 | #ifdef __ia64__ |
5081 | cfi = &eliloConfigType; |
5082 | #elif __powerpc__ |
5083 | cfi = &yabootConfigType; |
5084 | #elif __sparc__ |
5085 | cfi = &siloConfigType; |
5086 | #elif __s390__ |
5087 | cfi = &ziplConfigType; |
5088 | #elif __s390x__ |
5089 | cfi = &ziplConfigtype; |
5090 | #else |
5091 | cfi = &grubConfigType; |
5092 | #endif |
5093 | } |
5094 | |
5095 | if (!grubConfig) { |
5096 | if (cfi->findConfig) |
5097 | grubConfig = cfi->findConfig(cfi); |
5098 | if (!grubConfig) |
5099 | grubConfig = cfi->defaultConfig; |
5100 | } |
5101 | |
5102 | if (bootloaderProbe && (displayDefault || kernelInfo || |
5103 | newKernelPath || removeKernelPath || makeDefault |
5104 | || defaultKernel || displayDefaultIndex |
5105 | || displayDefaultTitle |
5106 | || (defaultIndex >= 0))) { |
5107 | fprintf(stderr, |
5108 | _("grubby: --bootloader-probe may not be used with " |
5109 | "specified option")); |
5110 | return 1; |
5111 | } |
5112 | |
5113 | if ((displayDefault || kernelInfo) && (newKernelPath || |
5114 | removeKernelPath)) { |
5115 | fprintf(stderr, _("grubby: --default-kernel and --info may not " |
5116 | "be used when adding or removing kernels\n")); |
5117 | return 1; |
5118 | } |
5119 | |
5120 | if (newKernelPath && !newKernelTitle) { |
5121 | fprintf(stderr, _("grubby: kernel title must be specified\n")); |
5122 | return 1; |
5123 | } else if (!newKernelPath && (copyDefault || |
5124 | (newKernelInitrd && !updateKernelPath) || |
5125 | makeDefault || extraInitrdCount > 0)) { |
5126 | fprintf(stderr, _("grubby: kernel path expected\n")); |
5127 | return 1; |
5128 | } |
5129 | |
5130 | if (newKernelPath && updateKernelPath) { |
5131 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" |
5132 | "not be used together")); |
5133 | return 1; |
5134 | } |
5135 | |
5136 | if (makeDefault && defaultKernel) { |
5137 | fprintf(stderr, _("grubby: --make-default and --default-kernel " |
5138 | "may not be used together\n")); |
5139 | return 1; |
5140 | } else if (defaultKernel && removeKernelPath && |
5141 | !strcmp(defaultKernel, removeKernelPath)) { |
5142 | fprintf(stderr, |
5143 | _("grubby: cannot make removed kernel the default\n")); |
5144 | return 1; |
5145 | } else if (defaultKernel && newKernelPath && |
5146 | !strcmp(defaultKernel, newKernelPath)) { |
5147 | makeDefault = 1; |
5148 | defaultKernel = NULL; |
5149 | } else if (defaultKernel && (defaultIndex >= 0)) { |
5150 | fprintf(stderr, |
5151 | _("grubby: --set-default and --set-default-index " |
5152 | "may not be used together\n")); |
5153 | return 1; |
5154 | } |
5155 | |
5156 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
5157 | fprintf(stderr, |
5158 | _("grubby: output file must be specified if stdin " |
5159 | "is used\n")); |
5160 | return 1; |
5161 | } |
5162 | |
5163 | if (!removeKernelPath && !newKernelPath && !displayDefault |
5164 | && !defaultKernel && !kernelInfo && !bootloaderProbe |
5165 | && !updateKernelPath && !removeMBKernel && !displayDefaultIndex |
5166 | && !displayDefaultTitle && (defaultIndex == -1)) { |
5167 | fprintf(stderr, _("grubby: no action specified\n")); |
5168 | return 1; |
5169 | } |
5170 | |
5171 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; |
5172 | |
5173 | if (cfi->needsBootPrefix) { |
5174 | if (!bootPrefix) { |
5175 | bootPrefix = findBootPrefix(); |
5176 | if (!bootPrefix) |
5177 | return 1; |
5178 | } else { |
5179 | /* this shouldn't end with a / */ |
5180 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') |
5181 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; |
5182 | } |
5183 | } else { |
5184 | bootPrefix = ""; |
5185 | } |
5186 | |
5187 | if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) { |
5188 | fprintf(stderr, |
5189 | _("grubby: %s doesn't allow multiple initrds\n"), |
5190 | cfi->defaultConfig); |
5191 | return 1; |
5192 | } |
5193 | |
5194 | if (bootloaderProbe) { |
5195 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; |
5196 | struct grubConfig *lconfig, *gconfig, *yconfig, *econfig; |
5197 | |
5198 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
5199 | if (grub2config) { |
5200 | gconfig = readConfig(grub2config, &grub2ConfigType); |
5201 | if (!gconfig) |
5202 | gr2c = 1; |
5203 | else |
5204 | gr2c = checkForGrub2(gconfig); |
5205 | } |
5206 | |
5207 | const char *grubconfig = grubFindConfig(&grubConfigType); |
5208 | if (!access(grubconfig, F_OK)) { |
5209 | gconfig = readConfig(grubconfig, &grubConfigType); |
5210 | if (!gconfig) |
5211 | grc = 1; |
5212 | else |
5213 | grc = checkForGrub(gconfig); |
5214 | } |
5215 | |
5216 | if (!access(liloConfigType.defaultConfig, F_OK)) { |
5217 | lconfig = |
5218 | readConfig(liloConfigType.defaultConfig, |
5219 | &liloConfigType); |
5220 | if (!lconfig) |
5221 | lrc = 1; |
5222 | else |
5223 | lrc = checkForLilo(lconfig); |
5224 | } |
5225 | |
5226 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
5227 | econfig = readConfig(eliloConfigType.defaultConfig, |
5228 | &eliloConfigType); |
5229 | if (!econfig) |
5230 | erc = 1; |
5231 | else |
5232 | erc = checkForElilo(econfig); |
5233 | } |
5234 | |
5235 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
5236 | lconfig = |
5237 | readConfig(extlinuxConfigType.defaultConfig, |
5238 | &extlinuxConfigType); |
5239 | if (!lconfig) |
5240 | extrc = 1; |
5241 | else |
5242 | extrc = checkForExtLinux(lconfig); |
5243 | } |
5244 | |
5245 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
5246 | yconfig = readConfig(yabootConfigType.defaultConfig, |
5247 | &yabootConfigType); |
5248 | if (!yconfig) |
5249 | yrc = 1; |
5250 | else |
5251 | yrc = checkForYaboot(yconfig); |
5252 | } |
5253 | |
5254 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 |
5255 | || erc == 1) |
5256 | return 1; |
5257 | |
5258 | if (lrc == 2) |
5259 | printf("lilo\n"); |
5260 | if (gr2c == 2) |
5261 | printf("grub2\n"); |
5262 | if (grc == 2) |
5263 | printf("grub\n"); |
5264 | if (extrc == 2) |
5265 | printf("extlinux\n"); |
5266 | if (yrc == 2) |
5267 | printf("yaboot\n"); |
5268 | if (erc == 2) |
5269 | printf("elilo\n"); |
5270 | |
5271 | return 0; |
5272 | } |
5273 | |
5274 | if (grubConfig == NULL) { |
5275 | printf("Could not find bootloader configuration file.\n"); |
5276 | exit(1); |
5277 | } |
5278 | |
5279 | config = readConfig(grubConfig, cfi); |
5280 | if (!config) |
5281 | return 1; |
5282 | |
5283 | if (displayDefault) { |
5284 | struct singleLine *line; |
5285 | struct singleEntry *entry; |
5286 | char *rootspec; |
5287 | |
5288 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5289 | return 0; |
5290 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5291 | cfi->defaultIsSaved) |
5292 | config->defaultImage = FIRST_ENTRY_INDEX; |
5293 | entry = findEntryByIndex(config, config->defaultImage); |
5294 | if (!entry) |
5295 | return 0; |
5296 | if (!suitableImage(entry, bootPrefix, 0, flags)) |
5297 | return 0; |
5298 | |
5299 | line = |
5300 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | |
5301 | LT_KERNEL_16, entry->lines); |
5302 | if (!line) |
5303 | return 0; |
5304 | |
5305 | rootspec = getRootSpecifier(line->elements[1].item); |
5306 | printf("%s%s\n", bootPrefix, line->elements[1].item + |
5307 | ((rootspec != NULL) ? strlen(rootspec) : 0)); |
5308 | |
5309 | return 0; |
5310 | |
5311 | } else if (displayDefaultTitle) { |
5312 | struct singleLine *line; |
5313 | struct singleEntry *entry; |
5314 | |
5315 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5316 | return 0; |
5317 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5318 | cfi->defaultIsSaved) |
5319 | config->defaultImage = FIRST_ENTRY_INDEX; |
5320 | entry = findEntryByIndex(config, config->defaultImage); |
5321 | if (!entry) |
5322 | return 0; |
5323 | |
5324 | if (!configureGrub2) { |
5325 | char *title; |
5326 | line = getLineByType(LT_TITLE, entry->lines); |
5327 | if (!line) |
5328 | return 0; |
5329 | title = extractTitle(config, line); |
5330 | if (!title) |
5331 | return 0; |
5332 | printf("%s\n", title); |
5333 | free(title); |
5334 | } else { |
5335 | char *title; |
5336 | |
5337 | dbgPrintf |
5338 | ("This is GRUB2, default title is embeded in menuentry\n"); |
5339 | line = getLineByType(LT_MENUENTRY, entry->lines); |
5340 | if (!line) |
5341 | return 0; |
5342 | title = grub2ExtractTitle(line); |
5343 | if (title) |
5344 | printf("%s\n", title); |
5345 | } |
5346 | return 0; |
5347 | |
5348 | } else if (displayDefaultIndex) { |
5349 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5350 | return 0; |
5351 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
5352 | cfi->defaultIsSaved) |
5353 | config->defaultImage = FIRST_ENTRY_INDEX; |
5354 | printf("%i\n", config->defaultImage); |
5355 | return 0; |
5356 | |
5357 | } else if (kernelInfo) |
5358 | return displayInfo(config, kernelInfo, bootPrefix); |
5359 | |
5360 | if (copyDefault) { |
5361 | template = findTemplate(config, bootPrefix, NULL, 0, flags); |
5362 | if (!template) |
5363 | return 1; |
5364 | } |
5365 | |
5366 | markRemovedImage(config, removeKernelPath, bootPrefix); |
5367 | markRemovedImage(config, removeMBKernel, bootPrefix); |
5368 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, |
5369 | makeDefault, bootPrefix, flags, defaultIndex, |
5370 | newIndex); |
5371 | setFallbackImage(config, newKernelPath != NULL); |
5372 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, |
5373 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) |
5374 | return 1; |
5375 | if (updateKernelPath && newKernelInitrd) { |
5376 | if (newMBKernel) { |
5377 | if (addMBInitrd(config, newMBKernel, updateKernelPath, |
5378 | bootPrefix, newKernelInitrd, |
5379 | newKernelTitle)) |
5380 | return 1; |
5381 | } else { |
5382 | if (updateInitrd(config, updateKernelPath, bootPrefix, |
5383 | newKernelInitrd, newKernelTitle)) |
5384 | return 1; |
5385 | } |
5386 | } |
5387 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
5388 | newKernelTitle, newKernelArgs, newKernelInitrd, |
5389 | (const char **)extraInitrds, extraInitrdCount, |
5390 | newMBKernel, newMBKernelArgs, newDevTreePath, |
5391 | newIndex)) |
5392 | return 1; |
5393 | |
5394 | if (numEntries(config) == 0) { |
5395 | fprintf(stderr, |
5396 | _("grubby: doing this would leave no kernel entries. " |
5397 | "Not writing out new config.\n")); |
5398 | return 1; |
5399 | } |
5400 | |
5401 | if (!outputFile) |
5402 | outputFile = (char *)grubConfig; |
5403 | |
5404 | return writeConfig(config, outputFile, bootPrefix); |
5405 | } |