Annotation of /trunk/grubby/grubby.c
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Revision 1747 -
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Sat Feb 18 01:06:48 2012 UTC (12 years, 8 months ago) by niro
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Sat Feb 18 01:06:48 2012 UTC (12 years, 8 months ago) by niro
File MIME type: text/plain
File size: 104462 byte(s)
Include prefix when printing kernel information When running grubby with '--info=', the initrd is displayed with the boot prefix, so, for correctness, also include it in the kernel line. Signed-off-by: Cleber Rosa <crosa@redhat.com>
1 | niro | 914 | /* |
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 | niro | 532 | |
21 | niro | 914 | #ifndef _GNU_SOURCE |
22 | #define _GNU_SOURCE | ||
23 | #endif | ||
24 | niro | 532 | #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 | niro | 914 | #include <libgen.h> |
35 | #include <execinfo.h> | ||
36 | #include <signal.h> | ||
37 | #include <blkid/blkid.h> | ||
38 | niro | 532 | |
39 | niro | 1694 | #ifndef DEBUG |
40 | niro | 914 | #define DEBUG 0 |
41 | niro | 1694 | #endif |
42 | niro | 532 | |
43 | niro | 914 | #if DEBUG |
44 | #define dbgPrintf(format, args...) fprintf(stderr, format , ## args) | ||
45 | #else | ||
46 | #define dbgPrintf(format, args...) | ||
47 | #endif | ||
48 | |||
49 | niro | 1736 | int debug = 0; /* Currently just for template debugging */ |
50 | |||
51 | niro | 532 | #define _(A) (A) |
52 | |||
53 | niro | 914 | #define MAX_EXTRA_INITRDS 16 /* code segment checked by --bootloader-probe */ |
54 | niro | 532 | #define CODE_SEG_SIZE 128 /* code segment checked by --bootloader-probe */ |
55 | |||
56 | niro | 1718 | #define NOOP_OPCODE 0x90 |
57 | #define JMP_SHORT_OPCODE 0xeb | ||
58 | |||
59 | niro | 532 | /* comments get lumped in with indention */ |
60 | struct lineElement { | ||
61 | char * item; | ||
62 | char * indent; | ||
63 | }; | ||
64 | |||
65 | niro | 914 | enum lineType_e { |
66 | niro | 1696 | LT_WHITESPACE = 1 << 0, |
67 | LT_TITLE = 1 << 1, | ||
68 | LT_KERNEL = 1 << 2, | ||
69 | LT_INITRD = 1 << 3, | ||
70 | LT_HYPER = 1 << 4, | ||
71 | LT_DEFAULT = 1 << 5, | ||
72 | LT_MBMODULE = 1 << 6, | ||
73 | LT_ROOT = 1 << 7, | ||
74 | LT_FALLBACK = 1 << 8, | ||
75 | LT_KERNELARGS = 1 << 9, | ||
76 | LT_BOOT = 1 << 10, | ||
77 | LT_BOOTROOT = 1 << 11, | ||
78 | LT_LBA = 1 << 12, | ||
79 | LT_OTHER = 1 << 13, | ||
80 | LT_GENERIC = 1 << 14, | ||
81 | LT_ECHO = 1 << 16, | ||
82 | LT_MENUENTRY = 1 << 17, | ||
83 | LT_ENTRY_END = 1 << 18, | ||
84 | LT_SET_VARIABLE = 1 << 19, | ||
85 | LT_UNKNOWN = 1 << 20, | ||
86 | niro | 914 | }; |
87 | niro | 532 | |
88 | struct singleLine { | ||
89 | char * indent; | ||
90 | int numElements; | ||
91 | struct lineElement * elements; | ||
92 | struct singleLine * next; | ||
93 | enum lineType_e type; | ||
94 | }; | ||
95 | |||
96 | struct singleEntry { | ||
97 | struct singleLine * lines; | ||
98 | int skip; | ||
99 | int multiboot; | ||
100 | struct singleEntry * next; | ||
101 | }; | ||
102 | |||
103 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) | ||
104 | |||
105 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ | ||
106 | |||
107 | niro | 914 | /* These defines are (only) used in addNewKernel() */ |
108 | #define NEED_KERNEL (1 << 0) | ||
109 | #define NEED_INITRD (1 << 1) | ||
110 | #define NEED_TITLE (1 << 2) | ||
111 | #define NEED_ARGS (1 << 3) | ||
112 | #define NEED_MB (1 << 4) | ||
113 | niro | 1696 | #define NEED_END (1 << 5) |
114 | niro | 532 | |
115 | #define MAIN_DEFAULT (1 << 0) | ||
116 | #define DEFAULT_SAVED -2 | ||
117 | |||
118 | struct keywordTypes { | ||
119 | char * key; | ||
120 | enum lineType_e type; | ||
121 | char nextChar; | ||
122 | niro | 914 | char separatorChar; |
123 | }; | ||
124 | niro | 532 | |
125 | niro | 1696 | struct configFileInfo; |
126 | |||
127 | typedef const char *(*findConfigFunc)(struct configFileInfo *); | ||
128 | typedef const int (*writeLineFunc)(struct configFileInfo *, | ||
129 | struct singleLine *line); | ||
130 | |||
131 | niro | 532 | struct configFileInfo { |
132 | char * defaultConfig; | ||
133 | niro | 1696 | findConfigFunc findConfig; |
134 | writeLineFunc writeLine; | ||
135 | niro | 532 | struct keywordTypes * keywords; |
136 | int defaultIsIndex; | ||
137 | niro | 1696 | int defaultIsVariable; |
138 | niro | 532 | int defaultSupportSaved; |
139 | niro | 1693 | enum lineType_e entryStart; |
140 | niro | 1696 | enum lineType_e entryEnd; |
141 | niro | 532 | int needsBootPrefix; |
142 | int argsInQuotes; | ||
143 | int maxTitleLength; | ||
144 | int titleBracketed; | ||
145 | niro | 1696 | int titlePosition; |
146 | niro | 914 | int mbHyperFirst; |
147 | int mbInitRdIsModule; | ||
148 | int mbConcatArgs; | ||
149 | int mbAllowExtraInitRds; | ||
150 | niro | 532 | }; |
151 | |||
152 | struct keywordTypes grubKeywords[] = { | ||
153 | { "title", LT_TITLE, ' ' }, | ||
154 | { "root", LT_BOOTROOT, ' ' }, | ||
155 | { "default", LT_DEFAULT, ' ' }, | ||
156 | { "fallback", LT_FALLBACK, ' ' }, | ||
157 | { "kernel", LT_KERNEL, ' ' }, | ||
158 | niro | 914 | { "initrd", LT_INITRD, ' ', ' ' }, |
159 | niro | 532 | { "module", LT_MBMODULE, ' ' }, |
160 | niro | 914 | { "kernel", LT_HYPER, ' ' }, |
161 | niro | 532 | { NULL, 0, 0 }, |
162 | }; | ||
163 | |||
164 | niro | 1715 | const char *grubFindConfig(struct configFileInfo *cfi) { |
165 | static const char *configFiles[] = { | ||
166 | "/etc/grub.conf", | ||
167 | "/boot/grub/grub.conf", | ||
168 | "/boot/grub/menu.lst", | ||
169 | NULL | ||
170 | }; | ||
171 | static int i = -1; | ||
172 | |||
173 | if (i == -1) { | ||
174 | for (i = 0; configFiles[i] != NULL; i++) { | ||
175 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
176 | if (!access(configFiles[i], R_OK)) { | ||
177 | dbgPrintf("found\n"); | ||
178 | return configFiles[i]; | ||
179 | } | ||
180 | dbgPrintf("not found\n"); | ||
181 | } | ||
182 | } | ||
183 | return configFiles[i]; | ||
184 | } | ||
185 | |||
186 | niro | 532 | struct configFileInfo grubConfigType = { |
187 | niro | 1715 | .findConfig = grubFindConfig, |
188 | niro | 1692 | .keywords = grubKeywords, |
189 | .defaultIsIndex = 1, | ||
190 | .defaultSupportSaved = 1, | ||
191 | niro | 1693 | .entryStart = LT_TITLE, |
192 | niro | 1692 | .needsBootPrefix = 1, |
193 | .mbHyperFirst = 1, | ||
194 | .mbInitRdIsModule = 1, | ||
195 | .mbAllowExtraInitRds = 1, | ||
196 | niro | 532 | }; |
197 | |||
198 | niro | 1696 | struct keywordTypes grub2Keywords[] = { |
199 | { "menuentry", LT_MENUENTRY, ' ' }, | ||
200 | { "}", LT_ENTRY_END, ' ' }, | ||
201 | { "echo", LT_ECHO, ' ' }, | ||
202 | { "set", LT_SET_VARIABLE,' ', '=' }, | ||
203 | { "root", LT_BOOTROOT, ' ' }, | ||
204 | { "default", LT_DEFAULT, ' ' }, | ||
205 | { "fallback", LT_FALLBACK, ' ' }, | ||
206 | { "linux", LT_KERNEL, ' ' }, | ||
207 | { "initrd", LT_INITRD, ' ', ' ' }, | ||
208 | { "module", LT_MBMODULE, ' ' }, | ||
209 | { "kernel", LT_HYPER, ' ' }, | ||
210 | { NULL, 0, 0 }, | ||
211 | }; | ||
212 | |||
213 | const char *grub2FindConfig(struct configFileInfo *cfi) { | ||
214 | static const char *configFiles[] = { | ||
215 | "/boot/grub/grub-efi.cfg", | ||
216 | "/boot/grub/grub.cfg", | ||
217 | NULL | ||
218 | }; | ||
219 | static int i = -1; | ||
220 | niro | 1714 | static const char *grub_cfg = "/boot/grub/grub.cfg"; |
221 | niro | 1696 | |
222 | if (i == -1) { | ||
223 | for (i = 0; configFiles[i] != NULL; i++) { | ||
224 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
225 | if (!access(configFiles[i], R_OK)) { | ||
226 | dbgPrintf("found\n"); | ||
227 | return configFiles[i]; | ||
228 | } | ||
229 | } | ||
230 | } | ||
231 | niro | 1714 | |
232 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory | ||
233 | * that isn't in grub1, and if it exists, return the config file path | ||
234 | * that they use. */ | ||
235 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { | ||
236 | dbgPrintf("found\n"); | ||
237 | return grub_cfg; | ||
238 | } | ||
239 | |||
240 | dbgPrintf("not found\n"); | ||
241 | niro | 1696 | return configFiles[i]; |
242 | } | ||
243 | |||
244 | niro | 1746 | int sizeOfSingleLine(struct singleLine * line) { |
245 | int i; | ||
246 | int count = 0; | ||
247 | |||
248 | for (i = 0; i < line->numElements; i++) { | ||
249 | int indentSize = 0; | ||
250 | |||
251 | count = count + strlen(line->elements[i].item); | ||
252 | |||
253 | indentSize = strlen(line->elements[i].indent); | ||
254 | if (indentSize > 0) | ||
255 | count = count + indentSize; | ||
256 | else | ||
257 | /* be extra safe and add room for whitespaces */ | ||
258 | count = count + 1; | ||
259 | } | ||
260 | |||
261 | /* room for trailing terminator */ | ||
262 | count = count + 1; | ||
263 | |||
264 | return count; | ||
265 | } | ||
266 | |||
267 | char *grub2ExtractTitle(struct singleLine * line) { | ||
268 | char * current; | ||
269 | char * current_indent; | ||
270 | int current_len; | ||
271 | int current_indent_len; | ||
272 | int i; | ||
273 | |||
274 | /* bail out if line does not start with menuentry */ | ||
275 | if (strcmp(line->elements[0].item, "menuentry")) | ||
276 | return NULL; | ||
277 | |||
278 | i = 1; | ||
279 | current = line->elements[i].item; | ||
280 | current_len = strlen(current); | ||
281 | |||
282 | /* if second word is quoted, strip the quotes and return single word */ | ||
283 | if ((*current == '\'') && (*(current + current_len - 1) == '\'')) { | ||
284 | char *tmp; | ||
285 | |||
286 | tmp = strdup(current); | ||
287 | *(tmp + current_len - 1) = '\0'; | ||
288 | return ++tmp; | ||
289 | } | ||
290 | |||
291 | /* if no quotes, return second word verbatim */ | ||
292 | if (*current != '\'') { | ||
293 | return current; | ||
294 | } | ||
295 | |||
296 | /* second element start with a quote, so we have to find the element | ||
297 | * whose last character is also quote (assuming it's the closing one) */ | ||
298 | if (*current == '\'') { | ||
299 | int resultMaxSize; | ||
300 | char * result; | ||
301 | |||
302 | resultMaxSize = sizeOfSingleLine(line); | ||
303 | result = malloc(resultMaxSize); | ||
304 | snprintf(result, resultMaxSize, "%s", ++current); | ||
305 | |||
306 | i++; | ||
307 | for (; i < line->numElements; ++i) { | ||
308 | current = line->elements[i].item; | ||
309 | current_len = strlen(current); | ||
310 | current_indent = line->elements[i].indent; | ||
311 | current_indent_len = strlen(current_indent); | ||
312 | |||
313 | strncat(result, current_indent, current_indent_len); | ||
314 | if (*(current + current_len - 1) != '\'') { | ||
315 | strncat(result, current, current_len); | ||
316 | } else { | ||
317 | strncat(result, current, current_len - 1); | ||
318 | break; | ||
319 | } | ||
320 | } | ||
321 | return result; | ||
322 | } | ||
323 | |||
324 | return NULL; | ||
325 | } | ||
326 | |||
327 | niro | 1696 | struct configFileInfo grub2ConfigType = { |
328 | .findConfig = grub2FindConfig, | ||
329 | .keywords = grub2Keywords, | ||
330 | .defaultIsIndex = 1, | ||
331 | .defaultSupportSaved = 0, | ||
332 | .defaultIsVariable = 1, | ||
333 | .entryStart = LT_MENUENTRY, | ||
334 | .entryEnd = LT_ENTRY_END, | ||
335 | .titlePosition = 1, | ||
336 | .needsBootPrefix = 1, | ||
337 | .mbHyperFirst = 1, | ||
338 | .mbInitRdIsModule = 1, | ||
339 | .mbAllowExtraInitRds = 1, | ||
340 | }; | ||
341 | |||
342 | niro | 532 | struct keywordTypes yabootKeywords[] = { |
343 | { "label", LT_TITLE, '=' }, | ||
344 | { "root", LT_ROOT, '=' }, | ||
345 | { "default", LT_DEFAULT, '=' }, | ||
346 | { "image", LT_KERNEL, '=' }, | ||
347 | { "bsd", LT_GENERIC, '=' }, | ||
348 | { "macos", LT_GENERIC, '=' }, | ||
349 | { "macosx", LT_GENERIC, '=' }, | ||
350 | { "magicboot", LT_GENERIC, '=' }, | ||
351 | { "darwin", LT_GENERIC, '=' }, | ||
352 | { "timeout", LT_GENERIC, '=' }, | ||
353 | { "install", LT_GENERIC, '=' }, | ||
354 | { "fstype", LT_GENERIC, '=' }, | ||
355 | { "hfstype", LT_GENERIC, '=' }, | ||
356 | { "delay", LT_GENERIC, '=' }, | ||
357 | { "defaultos", LT_GENERIC, '=' }, | ||
358 | { "init-message", LT_GENERIC, '=' }, | ||
359 | { "enablecdboot", LT_GENERIC, ' ' }, | ||
360 | { "enableofboot", LT_GENERIC, ' ' }, | ||
361 | { "enablenetboot", LT_GENERIC, ' ' }, | ||
362 | { "nonvram", LT_GENERIC, ' ' }, | ||
363 | { "hide", LT_GENERIC, ' ' }, | ||
364 | { "protect", LT_GENERIC, ' ' }, | ||
365 | { "nobless", LT_GENERIC, ' ' }, | ||
366 | { "nonvram", LT_GENERIC, ' ' }, | ||
367 | { "brokenosx", LT_GENERIC, ' ' }, | ||
368 | { "usemount", LT_GENERIC, ' ' }, | ||
369 | { "mntpoint", LT_GENERIC, '=' }, | ||
370 | { "partition", LT_GENERIC, '=' }, | ||
371 | { "device", LT_GENERIC, '=' }, | ||
372 | { "fstype", LT_GENERIC, '=' }, | ||
373 | niro | 914 | { "initrd", LT_INITRD, '=', ';' }, |
374 | niro | 532 | { "append", LT_KERNELARGS, '=' }, |
375 | { "boot", LT_BOOT, '=' }, | ||
376 | { "lba", LT_LBA, ' ' }, | ||
377 | { NULL, 0, 0 }, | ||
378 | }; | ||
379 | |||
380 | struct keywordTypes liloKeywords[] = { | ||
381 | { "label", LT_TITLE, '=' }, | ||
382 | { "root", LT_ROOT, '=' }, | ||
383 | { "default", LT_DEFAULT, '=' }, | ||
384 | { "image", LT_KERNEL, '=' }, | ||
385 | { "other", LT_OTHER, '=' }, | ||
386 | { "initrd", LT_INITRD, '=' }, | ||
387 | { "append", LT_KERNELARGS, '=' }, | ||
388 | { "boot", LT_BOOT, '=' }, | ||
389 | { "lba", LT_LBA, ' ' }, | ||
390 | { NULL, 0, 0 }, | ||
391 | }; | ||
392 | |||
393 | niro | 914 | struct keywordTypes eliloKeywords[] = { |
394 | { "label", LT_TITLE, '=' }, | ||
395 | { "root", LT_ROOT, '=' }, | ||
396 | { "default", LT_DEFAULT, '=' }, | ||
397 | { "image", LT_KERNEL, '=' }, | ||
398 | { "initrd", LT_INITRD, '=' }, | ||
399 | { "append", LT_KERNELARGS, '=' }, | ||
400 | { "vmm", LT_HYPER, '=' }, | ||
401 | { NULL, 0, 0 }, | ||
402 | }; | ||
403 | |||
404 | niro | 532 | struct keywordTypes siloKeywords[] = { |
405 | { "label", LT_TITLE, '=' }, | ||
406 | { "root", LT_ROOT, '=' }, | ||
407 | { "default", LT_DEFAULT, '=' }, | ||
408 | { "image", LT_KERNEL, '=' }, | ||
409 | { "other", LT_OTHER, '=' }, | ||
410 | { "initrd", LT_INITRD, '=' }, | ||
411 | { "append", LT_KERNELARGS, '=' }, | ||
412 | { "boot", LT_BOOT, '=' }, | ||
413 | { NULL, 0, 0 }, | ||
414 | }; | ||
415 | |||
416 | struct keywordTypes ziplKeywords[] = { | ||
417 | { "target", LT_BOOTROOT, '=' }, | ||
418 | { "image", LT_KERNEL, '=' }, | ||
419 | { "ramdisk", LT_INITRD, '=' }, | ||
420 | { "parameters", LT_KERNELARGS, '=' }, | ||
421 | { "default", LT_DEFAULT, '=' }, | ||
422 | { NULL, 0, 0 }, | ||
423 | }; | ||
424 | |||
425 | niro | 914 | struct keywordTypes extlinuxKeywords[] = { |
426 | { "label", LT_TITLE, ' ' }, | ||
427 | { "root", LT_ROOT, ' ' }, | ||
428 | { "default", LT_DEFAULT, ' ' }, | ||
429 | { "kernel", LT_KERNEL, ' ' }, | ||
430 | { "initrd", LT_INITRD, ' ', ',' }, | ||
431 | { "append", LT_KERNELARGS, ' ' }, | ||
432 | { "prompt", LT_UNKNOWN, ' ' }, | ||
433 | { NULL, 0, 0 }, | ||
434 | }; | ||
435 | int useextlinuxmenu; | ||
436 | niro | 532 | struct configFileInfo eliloConfigType = { |
437 | niro | 1692 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
438 | .keywords = eliloKeywords, | ||
439 | niro | 1693 | .entryStart = LT_KERNEL, |
440 | niro | 1692 | .needsBootPrefix = 1, |
441 | .argsInQuotes = 1, | ||
442 | .mbConcatArgs = 1, | ||
443 | niro | 532 | }; |
444 | |||
445 | struct configFileInfo liloConfigType = { | ||
446 | niro | 1692 | .defaultConfig = "/etc/lilo.conf", |
447 | .keywords = liloKeywords, | ||
448 | niro | 1693 | .entryStart = LT_KERNEL, |
449 | niro | 1692 | .argsInQuotes = 1, |
450 | .maxTitleLength = 15, | ||
451 | niro | 532 | }; |
452 | |||
453 | struct configFileInfo yabootConfigType = { | ||
454 | niro | 1692 | .defaultConfig = "/etc/yaboot.conf", |
455 | .keywords = yabootKeywords, | ||
456 | niro | 1693 | .entryStart = LT_KERNEL, |
457 | niro | 1692 | .needsBootPrefix = 1, |
458 | .argsInQuotes = 1, | ||
459 | .maxTitleLength = 15, | ||
460 | .mbAllowExtraInitRds = 1, | ||
461 | niro | 532 | }; |
462 | |||
463 | struct configFileInfo siloConfigType = { | ||
464 | niro | 1692 | .defaultConfig = "/etc/silo.conf", |
465 | .keywords = siloKeywords, | ||
466 | niro | 1693 | .entryStart = LT_KERNEL, |
467 | niro | 1692 | .needsBootPrefix = 1, |
468 | .argsInQuotes = 1, | ||
469 | .maxTitleLength = 15, | ||
470 | niro | 532 | }; |
471 | |||
472 | struct configFileInfo ziplConfigType = { | ||
473 | niro | 1692 | .defaultConfig = "/etc/zipl.conf", |
474 | .keywords = ziplKeywords, | ||
475 | niro | 1693 | .entryStart = LT_TITLE, |
476 | niro | 1692 | .argsInQuotes = 1, |
477 | .titleBracketed = 1, | ||
478 | niro | 532 | }; |
479 | |||
480 | niro | 914 | struct configFileInfo extlinuxConfigType = { |
481 | niro | 1692 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
482 | .keywords = extlinuxKeywords, | ||
483 | niro | 1693 | .entryStart = LT_TITLE, |
484 | niro | 1692 | .needsBootPrefix = 1, |
485 | .maxTitleLength = 255, | ||
486 | .mbAllowExtraInitRds = 1, | ||
487 | niro | 914 | }; |
488 | |||
489 | niro | 532 | struct grubConfig { |
490 | struct singleLine * theLines; | ||
491 | struct singleEntry * entries; | ||
492 | char * primaryIndent; | ||
493 | char * secondaryIndent; | ||
494 | int defaultImage; /* -1 if none specified -- this value is | ||
495 | * written out, overriding original */ | ||
496 | int fallbackImage; /* just like defaultImage */ | ||
497 | int flags; | ||
498 | struct configFileInfo * cfi; | ||
499 | }; | ||
500 | |||
501 | niro | 1156 | blkid_cache blkid; |
502 | |||
503 | niro | 532 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index); |
504 | struct singleEntry * findEntryByPath(struct grubConfig * cfg, | ||
505 | const char * path, const char * prefix, | ||
506 | int * index); | ||
507 | static int readFile(int fd, char ** bufPtr); | ||
508 | static void lineInit(struct singleLine * line); | ||
509 | niro | 914 | struct singleLine * lineDup(struct singleLine * line); |
510 | niro | 532 | static void lineFree(struct singleLine * line); |
511 | static int lineWrite(FILE * out, struct singleLine * line, | ||
512 | struct configFileInfo * cfi); | ||
513 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
514 | struct configFileInfo * cfi); | ||
515 | static char * getRootSpecifier(char * str); | ||
516 | niro | 1696 | static void requote(struct singleLine *line, struct configFileInfo * cfi); |
517 | niro | 914 | static void insertElement(struct singleLine * line, |
518 | const char * item, int insertHere, | ||
519 | struct configFileInfo * cfi); | ||
520 | static void removeElement(struct singleLine * line, int removeHere); | ||
521 | static struct keywordTypes * getKeywordByType(enum lineType_e type, | ||
522 | struct configFileInfo * cfi); | ||
523 | static enum lineType_e getTypeByKeyword(char * keyword, | ||
524 | struct configFileInfo * cfi); | ||
525 | static struct singleLine * getLineByType(enum lineType_e type, | ||
526 | struct singleLine * line); | ||
527 | static int checkForExtLinux(struct grubConfig * config); | ||
528 | struct singleLine * addLineTmpl(struct singleEntry * entry, | ||
529 | struct singleLine * tmplLine, | ||
530 | struct singleLine * prevLine, | ||
531 | const char * val, | ||
532 | struct configFileInfo * cfi); | ||
533 | struct singleLine * addLine(struct singleEntry * entry, | ||
534 | struct configFileInfo * cfi, | ||
535 | enum lineType_e type, char * defaultIndent, | ||
536 | const char * val); | ||
537 | niro | 532 | |
538 | static char * sdupprintf(const char *format, ...) | ||
539 | #ifdef __GNUC__ | ||
540 | __attribute__ ((format (printf, 1, 2))); | ||
541 | #else | ||
542 | ; | ||
543 | #endif | ||
544 | |||
545 | static char * sdupprintf(const char *format, ...) { | ||
546 | char *buf = NULL; | ||
547 | char c; | ||
548 | va_list args; | ||
549 | size_t size = 0; | ||
550 | va_start(args, format); | ||
551 | |||
552 | /* XXX requires C99 vsnprintf behavior */ | ||
553 | size = vsnprintf(&c, 1, format, args) + 1; | ||
554 | if (size == -1) { | ||
555 | printf("ERROR: vsnprintf behavior is not C99\n"); | ||
556 | abort(); | ||
557 | } | ||
558 | |||
559 | va_end(args); | ||
560 | va_start(args, format); | ||
561 | |||
562 | buf = malloc(size); | ||
563 | if (buf == NULL) | ||
564 | return NULL; | ||
565 | vsnprintf(buf, size, format, args); | ||
566 | va_end (args); | ||
567 | |||
568 | return buf; | ||
569 | } | ||
570 | |||
571 | niro | 914 | static struct keywordTypes * getKeywordByType(enum lineType_e type, |
572 | struct configFileInfo * cfi) { | ||
573 | struct keywordTypes * kw; | ||
574 | for (kw = cfi->keywords; kw->key; kw++) { | ||
575 | if (kw->type == type) | ||
576 | return kw; | ||
577 | } | ||
578 | return NULL; | ||
579 | } | ||
580 | |||
581 | niro | 1696 | static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) { |
582 | struct keywordTypes *kt = getKeywordByType(type, cfi); | ||
583 | if (kt) | ||
584 | return kt->key; | ||
585 | return "unknown"; | ||
586 | } | ||
587 | |||
588 | niro | 914 | static char * getpathbyspec(char *device) { |
589 | if (!blkid) | ||
590 | blkid_get_cache(&blkid, NULL); | ||
591 | |||
592 | return blkid_get_devname(blkid, device, NULL); | ||
593 | } | ||
594 | |||
595 | niro | 1156 | static char * getuuidbydev(char *device) { |
596 | if (!blkid) | ||
597 | blkid_get_cache(&blkid, NULL); | ||
598 | |||
599 | return blkid_get_tag_value(blkid, "UUID", device); | ||
600 | } | ||
601 | |||
602 | niro | 914 | static enum lineType_e getTypeByKeyword(char * keyword, |
603 | struct configFileInfo * cfi) { | ||
604 | struct keywordTypes * kw; | ||
605 | for (kw = cfi->keywords; kw->key; kw++) { | ||
606 | if (!strcmp(keyword, kw->key)) | ||
607 | return kw->type; | ||
608 | } | ||
609 | return LT_UNKNOWN; | ||
610 | } | ||
611 | |||
612 | static struct singleLine * getLineByType(enum lineType_e type, | ||
613 | struct singleLine * line) { | ||
614 | dbgPrintf("getLineByType(%d): ", type); | ||
615 | for (; line; line = line->next) { | ||
616 | dbgPrintf("%d:%s ", line->type, | ||
617 | line->numElements ? line->elements[0].item : "(empty)"); | ||
618 | if (line->type & type) break; | ||
619 | } | ||
620 | dbgPrintf(line ? "\n" : " (failed)\n"); | ||
621 | return line; | ||
622 | } | ||
623 | |||
624 | niro | 532 | static int isBracketedTitle(struct singleLine * line) { |
625 | niro | 914 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
626 | niro | 532 | int len = strlen(line->elements[0].item); |
627 | if (*(line->elements[0].item + len - 1) == ']') { | ||
628 | /* FIXME: this is a hack... */ | ||
629 | if (strcmp(line->elements[0].item, "[defaultboot]")) { | ||
630 | return 1; | ||
631 | } | ||
632 | } | ||
633 | } | ||
634 | return 0; | ||
635 | } | ||
636 | |||
637 | niro | 1693 | static int isEntryStart(struct singleLine * line, |
638 | niro | 532 | struct configFileInfo * cfi) { |
639 | niro | 1693 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
640 | niro | 914 | (cfi->titleBracketed && isBracketedTitle(line)); |
641 | niro | 532 | } |
642 | |||
643 | /* extract the title from within brackets (for zipl) */ | ||
644 | static char * extractTitle(struct singleLine * line) { | ||
645 | /* bracketed title... let's extract it (leaks a byte) */ | ||
646 | char * title; | ||
647 | title = strdup(line->elements[0].item); | ||
648 | title++; | ||
649 | *(title + strlen(title) - 1) = '\0'; | ||
650 | return title; | ||
651 | } | ||
652 | |||
653 | static int readFile(int fd, char ** bufPtr) { | ||
654 | int alloced = 0, size = 0, i = 0; | ||
655 | char * buf = NULL; | ||
656 | |||
657 | do { | ||
658 | size += i; | ||
659 | if ((size + 1024) > alloced) { | ||
660 | alloced += 4096; | ||
661 | buf = realloc(buf, alloced + 1); | ||
662 | } | ||
663 | } while ((i = read(fd, buf + size, 1024)) > 0); | ||
664 | |||
665 | if (i < 0) { | ||
666 | fprintf(stderr, _("error reading input: %s\n"), strerror(errno)); | ||
667 | free(buf); | ||
668 | return 1; | ||
669 | } | ||
670 | |||
671 | buf = realloc(buf, size + 2); | ||
672 | if (size == 0) | ||
673 | buf[size++] = '\n'; | ||
674 | else | ||
675 | if (buf[size - 1] != '\n') | ||
676 | buf[size++] = '\n'; | ||
677 | buf[size] = '\0'; | ||
678 | |||
679 | *bufPtr = buf; | ||
680 | |||
681 | return 0; | ||
682 | } | ||
683 | |||
684 | static void lineInit(struct singleLine * line) { | ||
685 | line->indent = NULL; | ||
686 | line->elements = NULL; | ||
687 | line->numElements = 0; | ||
688 | line->next = NULL; | ||
689 | } | ||
690 | |||
691 | niro | 914 | struct singleLine * lineDup(struct singleLine * line) { |
692 | int i; | ||
693 | struct singleLine * newLine = malloc(sizeof(*newLine)); | ||
694 | |||
695 | newLine->indent = strdup(line->indent); | ||
696 | newLine->next = NULL; | ||
697 | newLine->type = line->type; | ||
698 | newLine->numElements = line->numElements; | ||
699 | newLine->elements = malloc(sizeof(*newLine->elements) * | ||
700 | newLine->numElements); | ||
701 | |||
702 | for (i = 0; i < newLine->numElements; i++) { | ||
703 | newLine->elements[i].indent = strdup(line->elements[i].indent); | ||
704 | newLine->elements[i].item = strdup(line->elements[i].item); | ||
705 | } | ||
706 | |||
707 | return newLine; | ||
708 | } | ||
709 | |||
710 | niro | 532 | static void lineFree(struct singleLine * line) { |
711 | int i; | ||
712 | |||
713 | if (line->indent) free(line->indent); | ||
714 | |||
715 | for (i = 0; i < line->numElements; i++) { | ||
716 | free(line->elements[i].item); | ||
717 | free(line->elements[i].indent); | ||
718 | } | ||
719 | |||
720 | if (line->elements) free(line->elements); | ||
721 | lineInit(line); | ||
722 | } | ||
723 | |||
724 | static int lineWrite(FILE * out, struct singleLine * line, | ||
725 | struct configFileInfo * cfi) { | ||
726 | int i; | ||
727 | |||
728 | if (fprintf(out, "%s", line->indent) == -1) return -1; | ||
729 | |||
730 | for (i = 0; i < line->numElements; i++) { | ||
731 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) | ||
732 | if (fputc('"', out) == EOF) return -1; | ||
733 | |||
734 | if (fprintf(out, "%s", line->elements[i].item) == -1) return -1; | ||
735 | niro | 914 | if (i < line->numElements - 1) |
736 | if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1; | ||
737 | niro | 532 | } |
738 | |||
739 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) | ||
740 | if (fputc('"', out) == EOF) return -1; | ||
741 | |||
742 | if (fprintf(out, "\n") == -1) return -1; | ||
743 | |||
744 | return 0; | ||
745 | } | ||
746 | |||
747 | /* we've guaranteed that the buffer ends w/ \n\0 */ | ||
748 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
749 | struct configFileInfo * cfi) { | ||
750 | char * end; | ||
751 | char * start = *bufPtr; | ||
752 | char * chptr; | ||
753 | int elementsAlloced = 0; | ||
754 | struct lineElement * element; | ||
755 | int first = 1; | ||
756 | |||
757 | lineFree(line); | ||
758 | |||
759 | end = strchr(start, '\n'); | ||
760 | *end = '\0'; | ||
761 | *bufPtr = end + 1; | ||
762 | |||
763 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; | ||
764 | |||
765 | line->indent = strndup(start, chptr - start); | ||
766 | start = chptr; | ||
767 | |||
768 | while (start < end) { | ||
769 | /* we know !isspace(*start) */ | ||
770 | |||
771 | if (elementsAlloced == line->numElements) { | ||
772 | elementsAlloced += 5; | ||
773 | line->elements = realloc(line->elements, | ||
774 | sizeof(*line->elements) * elementsAlloced); | ||
775 | } | ||
776 | |||
777 | element = line->elements + line->numElements; | ||
778 | |||
779 | chptr = start; | ||
780 | while (*chptr && !isspace(*chptr)) { | ||
781 | if (first && *chptr == '=') break; | ||
782 | chptr++; | ||
783 | } | ||
784 | element->item = strndup(start, chptr - start); | ||
785 | start = chptr; | ||
786 | |||
787 | /* lilo actually accepts the pathological case of append = " foo " */ | ||
788 | if (*start == '=') | ||
789 | chptr = start + 1; | ||
790 | else | ||
791 | chptr = start; | ||
792 | |||
793 | do { | ||
794 | for (; *chptr && isspace(*chptr); chptr++); | ||
795 | if (*chptr == '=') | ||
796 | chptr = chptr + 1; | ||
797 | } while (isspace(*chptr)); | ||
798 | |||
799 | element->indent = strndup(start, chptr - start); | ||
800 | start = chptr; | ||
801 | |||
802 | line->numElements++; | ||
803 | first = 0; | ||
804 | } | ||
805 | |||
806 | if (!line->numElements) | ||
807 | line->type = LT_WHITESPACE; | ||
808 | else { | ||
809 | niro | 914 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
810 | if (line->type == LT_UNKNOWN) { | ||
811 | niro | 532 | /* zipl does [title] instead of something reasonable like all |
812 | * the other boot loaders. kind of ugly */ | ||
813 | if (cfi->titleBracketed && isBracketedTitle(line)) { | ||
814 | line->type = LT_TITLE; | ||
815 | } | ||
816 | |||
817 | /* this is awkward, but we need to be able to handle keywords | ||
818 | that begin with a # (specifically for #boot in grub.conf), | ||
819 | but still make comments lines with no elements (everything | ||
820 | stored in the indent */ | ||
821 | if (*line->elements[0].item == '#') { | ||
822 | char * fullLine; | ||
823 | int len; | ||
824 | int i; | ||
825 | |||
826 | len = strlen(line->indent); | ||
827 | for (i = 0; i < line->numElements; i++) | ||
828 | len += strlen(line->elements[i].item) + | ||
829 | strlen(line->elements[i].indent); | ||
830 | |||
831 | fullLine = malloc(len + 1); | ||
832 | strcpy(fullLine, line->indent); | ||
833 | free(line->indent); | ||
834 | line->indent = fullLine; | ||
835 | |||
836 | for (i = 0; i < line->numElements; i++) { | ||
837 | strcat(fullLine, line->elements[i].item); | ||
838 | strcat(fullLine, line->elements[i].indent); | ||
839 | free(line->elements[i].item); | ||
840 | free(line->elements[i].indent); | ||
841 | } | ||
842 | |||
843 | line->type = LT_WHITESPACE; | ||
844 | line->numElements = 0; | ||
845 | } | ||
846 | niro | 914 | } else { |
847 | struct keywordTypes *kw; | ||
848 | |||
849 | kw = getKeywordByType(line->type, cfi); | ||
850 | |||
851 | /* space isn't the only separator, we need to split | ||
852 | * elements up more | ||
853 | */ | ||
854 | if (!isspace(kw->separatorChar)) { | ||
855 | int i; | ||
856 | char indent[2] = ""; | ||
857 | indent[0] = kw->separatorChar; | ||
858 | for (i = 1; i < line->numElements; i++) { | ||
859 | char *p; | ||
860 | int j; | ||
861 | int numNewElements; | ||
862 | |||
863 | numNewElements = 0; | ||
864 | p = line->elements[i].item; | ||
865 | while (*p != '\0') { | ||
866 | if (*p == kw->separatorChar) | ||
867 | numNewElements++; | ||
868 | p++; | ||
869 | } | ||
870 | if (line->numElements + numNewElements >= elementsAlloced) { | ||
871 | elementsAlloced += numNewElements + 5; | ||
872 | line->elements = realloc(line->elements, | ||
873 | sizeof(*line->elements) * elementsAlloced); | ||
874 | } | ||
875 | |||
876 | for (j = line->numElements; j > i; j--) { | ||
877 | line->elements[j + numNewElements] = line->elements[j]; | ||
878 | } | ||
879 | line->numElements += numNewElements; | ||
880 | |||
881 | p = line->elements[i].item; | ||
882 | while (*p != '\0') { | ||
883 | |||
884 | while (*p != kw->separatorChar && *p != '\0') p++; | ||
885 | if (*p == '\0') { | ||
886 | break; | ||
887 | } | ||
888 | |||
889 | free(line->elements[i].indent); | ||
890 | line->elements[i].indent = strdup(indent); | ||
891 | *p++ = '\0'; | ||
892 | i++; | ||
893 | line->elements[i].item = strdup(p); | ||
894 | line->elements[i].indent = strdup(""); | ||
895 | p = line->elements[i].item; | ||
896 | } | ||
897 | } | ||
898 | } | ||
899 | niro | 532 | } |
900 | } | ||
901 | |||
902 | return 0; | ||
903 | } | ||
904 | |||
905 | static struct grubConfig * readConfig(const char * inName, | ||
906 | struct configFileInfo * cfi) { | ||
907 | int in; | ||
908 | char * incoming = NULL, * head; | ||
909 | int rc; | ||
910 | int sawEntry = 0; | ||
911 | int movedLine = 0; | ||
912 | struct grubConfig * cfg; | ||
913 | struct singleLine * last = NULL, * line, * defaultLine = NULL; | ||
914 | char * end; | ||
915 | struct singleEntry * entry = NULL; | ||
916 | int i, len; | ||
917 | char * buf; | ||
918 | |||
919 | if (!strcmp(inName, "-")) { | ||
920 | in = 0; | ||
921 | } else { | ||
922 | if ((in = open(inName, O_RDONLY)) < 0) { | ||
923 | fprintf(stderr, _("error opening %s for read: %s\n"), | ||
924 | inName, strerror(errno)); | ||
925 | return NULL; | ||
926 | } | ||
927 | } | ||
928 | |||
929 | rc = readFile(in, &incoming); | ||
930 | close(in); | ||
931 | if (rc) return NULL; | ||
932 | |||
933 | head = incoming; | ||
934 | cfg = malloc(sizeof(*cfg)); | ||
935 | cfg->primaryIndent = strdup(""); | ||
936 | cfg->secondaryIndent = strdup("\t"); | ||
937 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; | ||
938 | cfg->cfi = cfi; | ||
939 | cfg->theLines = NULL; | ||
940 | cfg->entries = NULL; | ||
941 | cfg->fallbackImage = 0; | ||
942 | |||
943 | /* copy everything we have */ | ||
944 | while (*head) { | ||
945 | line = malloc(sizeof(*line)); | ||
946 | lineInit(line); | ||
947 | |||
948 | if (getNextLine(&head, line, cfi)) { | ||
949 | free(line); | ||
950 | /* XXX memory leak of everything in cfg */ | ||
951 | return NULL; | ||
952 | } | ||
953 | |||
954 | if (!sawEntry && line->numElements) { | ||
955 | free(cfg->primaryIndent); | ||
956 | cfg->primaryIndent = strdup(line->indent); | ||
957 | } else if (line->numElements) { | ||
958 | free(cfg->secondaryIndent); | ||
959 | cfg->secondaryIndent = strdup(line->indent); | ||
960 | } | ||
961 | |||
962 | niro | 1727 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
963 | niro | 532 | sawEntry = 1; |
964 | if (!entry) { | ||
965 | cfg->entries = malloc(sizeof(*entry)); | ||
966 | entry = cfg->entries; | ||
967 | } else { | ||
968 | entry->next = malloc(sizeof(*entry)); | ||
969 | entry = entry->next; | ||
970 | } | ||
971 | |||
972 | entry->skip = 0; | ||
973 | entry->multiboot = 0; | ||
974 | entry->lines = NULL; | ||
975 | entry->next = NULL; | ||
976 | } | ||
977 | |||
978 | niro | 1696 | if (line->type == LT_SET_VARIABLE) { |
979 | int i; | ||
980 | dbgPrintf("found 'set' command (%d elements): ", line->numElements); | ||
981 | dbgPrintf("%s", line->indent); | ||
982 | for (i = 0; i < line->numElements; i++) | ||
983 | dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item); | ||
984 | dbgPrintf("\n"); | ||
985 | struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi); | ||
986 | if (kwType && line->numElements == 3 && | ||
987 | !strcmp(line->elements[1].item, kwType->key)) { | ||
988 | dbgPrintf("Line sets default config\n"); | ||
989 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; | ||
990 | defaultLine = line; | ||
991 | } | ||
992 | } else if (line->type == LT_DEFAULT && line->numElements == 2) { | ||
993 | niro | 532 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
994 | defaultLine = line; | ||
995 | niro | 914 | |
996 | } else if (line->type == LT_KERNEL) { | ||
997 | /* if by some freak chance this is multiboot and the "module" | ||
998 | * lines came earlier in the template, make sure to use LT_HYPER | ||
999 | * instead of LT_KERNEL now | ||
1000 | */ | ||
1001 | if (entry->multiboot) | ||
1002 | line->type = LT_HYPER; | ||
1003 | |||
1004 | niro | 532 | } else if (line->type == LT_MBMODULE) { |
1005 | niro | 914 | /* go back and fix the LT_KERNEL line to indicate LT_HYPER |
1006 | * instead, now that we know this is a multiboot entry. | ||
1007 | * This only applies to grub, but that's the only place we | ||
1008 | * should find LT_MBMODULE lines anyway. | ||
1009 | */ | ||
1010 | struct singleLine * l; | ||
1011 | for (l = entry->lines; l; l = l->next) { | ||
1012 | if (l->type == LT_HYPER) | ||
1013 | break; | ||
1014 | else if (l->type == LT_KERNEL) { | ||
1015 | l->type = LT_HYPER; | ||
1016 | break; | ||
1017 | } | ||
1018 | } | ||
1019 | niro | 532 | entry->multiboot = 1; |
1020 | niro | 914 | |
1021 | } else if (line->type == LT_HYPER) { | ||
1022 | entry->multiboot = 1; | ||
1023 | |||
1024 | niro | 532 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1025 | cfg->fallbackImage = strtol(line->elements[1].item, &end, 10); | ||
1026 | if (*end) cfg->fallbackImage = -1; | ||
1027 | niro | 914 | |
1028 | niro | 532 | } else if (line->type == LT_TITLE && line->numElements > 1) { |
1029 | /* make the title a single argument (undoing our parsing) */ | ||
1030 | len = 0; | ||
1031 | for (i = 1; i < line->numElements; i++) { | ||
1032 | len += strlen(line->elements[i].item); | ||
1033 | len += strlen(line->elements[i].indent); | ||
1034 | } | ||
1035 | buf = malloc(len + 1); | ||
1036 | *buf = '\0'; | ||
1037 | |||
1038 | for (i = 1; i < line->numElements; i++) { | ||
1039 | strcat(buf, line->elements[i].item); | ||
1040 | free(line->elements[i].item); | ||
1041 | |||
1042 | if ((i + 1) != line->numElements) { | ||
1043 | strcat(buf, line->elements[i].indent); | ||
1044 | free(line->elements[i].indent); | ||
1045 | } | ||
1046 | } | ||
1047 | |||
1048 | line->elements[1].indent = | ||
1049 | line->elements[line->numElements - 1].indent; | ||
1050 | line->elements[1].item = buf; | ||
1051 | line->numElements = 2; | ||
1052 | niro | 914 | |
1053 | niro | 532 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
1054 | /* Strip off any " which may be present; they'll be put back | ||
1055 | on write. This is one of the few (the only?) places that grubby | ||
1056 | canonicalizes the output */ | ||
1057 | |||
1058 | if (line->numElements >= 2) { | ||
1059 | int last, len; | ||
1060 | |||
1061 | if (*line->elements[1].item == '"') | ||
1062 | niro | 914 | memmove(line->elements[1].item, line->elements[1].item + 1, |
1063 | strlen(line->elements[1].item + 1) + 1); | ||
1064 | niro | 532 | |
1065 | last = line->numElements - 1; | ||
1066 | len = strlen(line->elements[last].item) - 1; | ||
1067 | if (line->elements[last].item[len] == '"') | ||
1068 | line->elements[last].item[len] = '\0'; | ||
1069 | } | ||
1070 | } | ||
1071 | |||
1072 | /* If we find a generic config option which should live at the | ||
1073 | top of the file, move it there. Old versions of grubby were | ||
1074 | probably responsible for putting new images in the wrong | ||
1075 | place in front of it anyway. */ | ||
1076 | if (sawEntry && line->type == LT_GENERIC) { | ||
1077 | struct singleLine **l = &cfg->theLines; | ||
1078 | struct singleLine **last_nonws = &cfg->theLines; | ||
1079 | while (*l) { | ||
1080 | if ((*l)->type != LT_WHITESPACE) | ||
1081 | last_nonws = &((*l)->next); | ||
1082 | l = &((*l)->next); | ||
1083 | } | ||
1084 | line->next = *last_nonws; | ||
1085 | *last_nonws = line; | ||
1086 | movedLine = 1; | ||
1087 | continue; /* without setting 'last' */ | ||
1088 | } | ||
1089 | niro | 914 | |
1090 | niro | 532 | /* If a second line of whitespace happens after a generic option |
1091 | which was moved, drop it. */ | ||
1092 | if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) { | ||
1093 | lineFree(line); | ||
1094 | free(line); | ||
1095 | movedLine = 0; | ||
1096 | continue; | ||
1097 | } | ||
1098 | movedLine = 0; | ||
1099 | |||
1100 | if (sawEntry) { | ||
1101 | if (!entry->lines) | ||
1102 | entry->lines = line; | ||
1103 | else | ||
1104 | last->next = line; | ||
1105 | niro | 1696 | dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry); |
1106 | |||
1107 | /* we could have seen this outside of an entry... if so, we | ||
1108 | * ignore it like any other line we don't grok */ | ||
1109 | if (line->type == LT_ENTRY_END && sawEntry) | ||
1110 | sawEntry = 0; | ||
1111 | niro | 532 | } else { |
1112 | if (!cfg->theLines) | ||
1113 | cfg->theLines = line; | ||
1114 | niro | 914 | else |
1115 | niro | 532 | last->next = line; |
1116 | niro | 1696 | dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi)); |
1117 | niro | 532 | } |
1118 | |||
1119 | last = line; | ||
1120 | } | ||
1121 | |||
1122 | free(incoming); | ||
1123 | |||
1124 | niro | 1696 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1125 | niro | 532 | if (defaultLine) { |
1126 | niro | 1696 | if (cfi->defaultIsVariable) { |
1127 | char *value = defaultLine->elements[2].item; | ||
1128 | while (*value && (*value == '"' || *value == '\'' || | ||
1129 | *value == ' ' || *value == '\t')) | ||
1130 | value++; | ||
1131 | cfg->defaultImage = strtol(value, &end, 10); | ||
1132 | while (*end && (*end == '"' || *end == '\'' || | ||
1133 | *end == ' ' || *end == '\t')) | ||
1134 | end++; | ||
1135 | if (*end) cfg->defaultImage = -1; | ||
1136 | } else if (cfi->defaultSupportSaved && | ||
1137 | niro | 532 | !strncmp(defaultLine->elements[1].item, "saved", 5)) { |
1138 | cfg->defaultImage = DEFAULT_SAVED; | ||
1139 | } else if (cfi->defaultIsIndex) { | ||
1140 | cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10); | ||
1141 | if (*end) cfg->defaultImage = -1; | ||
1142 | } else if (defaultLine->numElements >= 2) { | ||
1143 | i = 0; | ||
1144 | while ((entry = findEntryByIndex(cfg, i))) { | ||
1145 | for (line = entry->lines; line; line = line->next) | ||
1146 | if (line->type == LT_TITLE) break; | ||
1147 | |||
1148 | if (!cfi->titleBracketed) { | ||
1149 | if (line && (line->numElements >= 2) && | ||
1150 | !strcmp(defaultLine->elements[1].item, | ||
1151 | line->elements[1].item)) break; | ||
1152 | } else if (line) { | ||
1153 | if (!strcmp(defaultLine->elements[1].item, | ||
1154 | extractTitle(line))) break; | ||
1155 | } | ||
1156 | i++; | ||
1157 | niro | 914 | entry = NULL; |
1158 | niro | 532 | } |
1159 | |||
1160 | niro | 914 | if (entry){ |
1161 | cfg->defaultImage = i; | ||
1162 | }else{ | ||
1163 | cfg->defaultImage = -1; | ||
1164 | } | ||
1165 | niro | 532 | } |
1166 | niro | 914 | } else { |
1167 | cfg->defaultImage = 0; | ||
1168 | niro | 532 | } |
1169 | |||
1170 | return cfg; | ||
1171 | } | ||
1172 | |||
1173 | static void writeDefault(FILE * out, char * indent, | ||
1174 | char * separator, struct grubConfig * cfg) { | ||
1175 | struct singleEntry * entry; | ||
1176 | struct singleLine * line; | ||
1177 | int i; | ||
1178 | |||
1179 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return; | ||
1180 | |||
1181 | if (cfg->defaultImage == DEFAULT_SAVED) | ||
1182 | fprintf(out, "%sdefault%ssaved\n", indent, separator); | ||
1183 | else if (cfg->defaultImage > -1) { | ||
1184 | if (cfg->cfi->defaultIsIndex) { | ||
1185 | niro | 1696 | if (cfg->cfi->defaultIsVariable) { |
1186 | fprintf(out, "%sset default=\"%d\"\n", indent, | ||
1187 | cfg->defaultImage); | ||
1188 | } else { | ||
1189 | fprintf(out, "%sdefault%s%d\n", indent, separator, | ||
1190 | cfg->defaultImage); | ||
1191 | } | ||
1192 | niro | 532 | } else { |
1193 | int image = cfg->defaultImage; | ||
1194 | |||
1195 | entry = cfg->entries; | ||
1196 | while (entry && entry->skip) entry = entry->next; | ||
1197 | |||
1198 | i = 0; | ||
1199 | while (entry && i < image) { | ||
1200 | entry = entry->next; | ||
1201 | |||
1202 | while (entry && entry->skip) entry = entry->next; | ||
1203 | i++; | ||
1204 | } | ||
1205 | |||
1206 | if (!entry) return; | ||
1207 | |||
1208 | niro | 914 | line = getLineByType(LT_TITLE, entry->lines); |
1209 | niro | 532 | |
1210 | if (line && line->numElements >= 2) | ||
1211 | fprintf(out, "%sdefault%s%s\n", indent, separator, | ||
1212 | line->elements[1].item); | ||
1213 | else if (line && (line->numElements == 1) && | ||
1214 | cfg->cfi->titleBracketed) { | ||
1215 | fprintf(out, "%sdefault%s%s\n", indent, separator, | ||
1216 | extractTitle(line)); | ||
1217 | } | ||
1218 | } | ||
1219 | } | ||
1220 | } | ||
1221 | |||
1222 | static int writeConfig(struct grubConfig * cfg, char * outName, | ||
1223 | const char * prefix) { | ||
1224 | FILE * out; | ||
1225 | struct singleLine * line; | ||
1226 | struct singleEntry * entry; | ||
1227 | char * tmpOutName; | ||
1228 | int needs = MAIN_DEFAULT; | ||
1229 | struct stat sb; | ||
1230 | int i; | ||
1231 | |||
1232 | if (!strcmp(outName, "-")) { | ||
1233 | out = stdout; | ||
1234 | tmpOutName = NULL; | ||
1235 | } else { | ||
1236 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { | ||
1237 | char * buf; | ||
1238 | int len = 256; | ||
1239 | int rc; | ||
1240 | |||
1241 | /* most likely the symlink is relative, so change our | ||
1242 | niro | 914 | directory to the dir of the symlink */ |
1243 | rc = chdir(dirname(strdupa(outName))); | ||
1244 | niro | 532 | do { |
1245 | buf = alloca(len + 1); | ||
1246 | niro | 914 | rc = readlink(basename(outName), buf, len); |
1247 | niro | 532 | if (rc == len) len += 256; |
1248 | } while (rc == len); | ||
1249 | |||
1250 | if (rc < 0) { | ||
1251 | fprintf(stderr, _("grubby: error readlink link %s: %s\n"), | ||
1252 | outName, strerror(errno)); | ||
1253 | return 1; | ||
1254 | } | ||
1255 | |||
1256 | outName = buf; | ||
1257 | outName[rc] = '\0'; | ||
1258 | } | ||
1259 | |||
1260 | tmpOutName = alloca(strlen(outName) + 2); | ||
1261 | sprintf(tmpOutName, "%s-", outName); | ||
1262 | out = fopen(tmpOutName, "w"); | ||
1263 | if (!out) { | ||
1264 | fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName, | ||
1265 | strerror(errno)); | ||
1266 | return 1; | ||
1267 | } | ||
1268 | |||
1269 | if (!stat(outName, &sb)) { | ||
1270 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { | ||
1271 | fprintf(stderr, _("grubby: error setting perms on %s: %s\n"), | ||
1272 | tmpOutName, strerror(errno)); | ||
1273 | fclose(out); | ||
1274 | unlink(tmpOutName); | ||
1275 | return 1; | ||
1276 | } | ||
1277 | } | ||
1278 | } | ||
1279 | |||
1280 | line = cfg->theLines; | ||
1281 | niro | 1696 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1282 | niro | 532 | while (line) { |
1283 | niro | 1696 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1284 | line->numElements == 3 && | ||
1285 | !strcmp(line->elements[1].item, defaultKw->key)) { | ||
1286 | niro | 532 | writeDefault(out, line->indent, line->elements[0].indent, cfg); |
1287 | needs &= ~MAIN_DEFAULT; | ||
1288 | niro | 1696 | } else if (line->type == LT_DEFAULT) { |
1289 | writeDefault(out, line->indent, line->elements[0].indent, cfg); | ||
1290 | needs &= ~MAIN_DEFAULT; | ||
1291 | niro | 532 | } else if (line->type == LT_FALLBACK) { |
1292 | if (cfg->fallbackImage > -1) | ||
1293 | fprintf(out, "%s%s%s%d\n", line->indent, | ||
1294 | line->elements[0].item, line->elements[0].indent, | ||
1295 | cfg->fallbackImage); | ||
1296 | } else { | ||
1297 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1298 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1299 | tmpOutName, strerror(errno)); | ||
1300 | fclose(out); | ||
1301 | unlink(tmpOutName); | ||
1302 | return 1; | ||
1303 | } | ||
1304 | } | ||
1305 | |||
1306 | line = line->next; | ||
1307 | } | ||
1308 | |||
1309 | if (needs & MAIN_DEFAULT) { | ||
1310 | writeDefault(out, cfg->primaryIndent, "=", cfg); | ||
1311 | needs &= ~MAIN_DEFAULT; | ||
1312 | } | ||
1313 | |||
1314 | i = 0; | ||
1315 | while ((entry = findEntryByIndex(cfg, i++))) { | ||
1316 | if (entry->skip) continue; | ||
1317 | |||
1318 | line = entry->lines; | ||
1319 | while (line) { | ||
1320 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1321 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1322 | tmpOutName, strerror(errno)); | ||
1323 | fclose(out); | ||
1324 | unlink(tmpOutName); | ||
1325 | return 1; | ||
1326 | } | ||
1327 | line = line->next; | ||
1328 | } | ||
1329 | } | ||
1330 | |||
1331 | if (tmpOutName) { | ||
1332 | if (rename(tmpOutName, outName)) { | ||
1333 | fprintf(stderr, _("grubby: error moving %s to %s: %s\n"), | ||
1334 | tmpOutName, outName, strerror(errno)); | ||
1335 | unlink(outName); | ||
1336 | return 1; | ||
1337 | } | ||
1338 | } | ||
1339 | |||
1340 | return 0; | ||
1341 | } | ||
1342 | |||
1343 | static int numEntries(struct grubConfig *cfg) { | ||
1344 | int i = 0; | ||
1345 | struct singleEntry * entry; | ||
1346 | |||
1347 | entry = cfg->entries; | ||
1348 | while (entry) { | ||
1349 | if (!entry->skip) | ||
1350 | i++; | ||
1351 | entry = entry->next; | ||
1352 | } | ||
1353 | return i; | ||
1354 | } | ||
1355 | |||
1356 | niro | 1156 | static char *findDiskForRoot() |
1357 | { | ||
1358 | int fd; | ||
1359 | char buf[65536]; | ||
1360 | char *devname; | ||
1361 | char *chptr; | ||
1362 | int rc; | ||
1363 | |||
1364 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { | ||
1365 | fprintf(stderr, "grubby: failed to open %s: %s\n", | ||
1366 | _PATH_MOUNTED, strerror(errno)); | ||
1367 | return NULL; | ||
1368 | } | ||
1369 | |||
1370 | rc = read(fd, buf, sizeof(buf) - 1); | ||
1371 | if (rc <= 0) { | ||
1372 | fprintf(stderr, "grubby: failed to read %s: %s\n", | ||
1373 | _PATH_MOUNTED, strerror(errno)); | ||
1374 | close(fd); | ||
1375 | return NULL; | ||
1376 | } | ||
1377 | close(fd); | ||
1378 | buf[rc] = '\0'; | ||
1379 | chptr = buf; | ||
1380 | |||
1381 | while (chptr && chptr != buf+rc) { | ||
1382 | devname = chptr; | ||
1383 | |||
1384 | /* | ||
1385 | * The first column of a mtab entry is the device, but if the entry is a | ||
1386 | * special device it won't start with /, so move on to the next line. | ||
1387 | */ | ||
1388 | if (*devname != '/') { | ||
1389 | chptr = strchr(chptr, '\n'); | ||
1390 | if (chptr) | ||
1391 | chptr++; | ||
1392 | continue; | ||
1393 | } | ||
1394 | |||
1395 | /* Seek to the next space */ | ||
1396 | chptr = strchr(chptr, ' '); | ||
1397 | if (!chptr) { | ||
1398 | fprintf(stderr, "grubby: error parsing %s: %s\n", | ||
1399 | _PATH_MOUNTED, strerror(errno)); | ||
1400 | return NULL; | ||
1401 | } | ||
1402 | |||
1403 | /* | ||
1404 | * The second column of a mtab entry is the mount point, we are looking | ||
1405 | * for '/' obviously. | ||
1406 | */ | ||
1407 | if (*(++chptr) == '/' && *(++chptr) == ' ') { | ||
1408 | /* | ||
1409 | * Move back 2, which is the first space after the device name, set | ||
1410 | * it to \0 so strdup will just get the devicename. | ||
1411 | */ | ||
1412 | chptr -= 2; | ||
1413 | *chptr = '\0'; | ||
1414 | return strdup(devname); | ||
1415 | } | ||
1416 | |||
1417 | /* Next line */ | ||
1418 | chptr = strchr(chptr, '\n'); | ||
1419 | if (chptr) | ||
1420 | chptr++; | ||
1421 | } | ||
1422 | |||
1423 | return NULL; | ||
1424 | } | ||
1425 | |||
1426 | niro | 1736 | void printEntry(struct singleEntry * entry) { |
1427 | int i; | ||
1428 | struct singleLine * line; | ||
1429 | |||
1430 | for (line = entry->lines; line; line = line->next) { | ||
1431 | fprintf(stderr, "DBG: %s", line->indent); | ||
1432 | for (i = 0; i < line->numElements; i++) { | ||
1433 | fprintf(stderr, "%s%s", | ||
1434 | line->elements[i].item, line->elements[i].indent); | ||
1435 | } | ||
1436 | fprintf(stderr, "\n"); | ||
1437 | } | ||
1438 | } | ||
1439 | |||
1440 | void notSuitablePrintf(struct singleEntry * entry, const char *fmt, ...) | ||
1441 | { | ||
1442 | va_list argp; | ||
1443 | |||
1444 | if (!debug) | ||
1445 | return; | ||
1446 | |||
1447 | va_start(argp, fmt); | ||
1448 | fprintf(stderr, "DBG: Image entry failed: "); | ||
1449 | vfprintf(stderr, fmt, argp); | ||
1450 | printEntry(entry); | ||
1451 | va_end(argp); | ||
1452 | } | ||
1453 | |||
1454 | niro | 1745 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
1455 | |||
1456 | static int endswith(const char *s, char c) | ||
1457 | { | ||
1458 | int slen; | ||
1459 | |||
1460 | if (!s && !s[0]) | ||
1461 | return 0; | ||
1462 | slen = strlen(s) - 1; | ||
1463 | |||
1464 | return s[slen] == c; | ||
1465 | } | ||
1466 | |||
1467 | niro | 532 | int suitableImage(struct singleEntry * entry, const char * bootPrefix, |
1468 | int skipRemoved, int flags) { | ||
1469 | struct singleLine * line; | ||
1470 | char * fullName; | ||
1471 | int i; | ||
1472 | char * dev; | ||
1473 | char * rootspec; | ||
1474 | niro | 1156 | char * rootdev; |
1475 | niro | 532 | |
1476 | niro | 1736 | if (skipRemoved && entry->skip) { |
1477 | notSuitablePrintf(entry, "marked to skip\n"); | ||
1478 | return 0; | ||
1479 | } | ||
1480 | niro | 532 | |
1481 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1482 | niro | 1736 | if (!line) { |
1483 | notSuitablePrintf(entry, "no line found\n"); | ||
1484 | return 0; | ||
1485 | } | ||
1486 | if (line->numElements < 2) { | ||
1487 | notSuitablePrintf(entry, "line has only %d elements\n", | ||
1488 | line->numElements); | ||
1489 | return 0; | ||
1490 | } | ||
1491 | niro | 914 | |
1492 | niro | 532 | if (flags & GRUBBY_BADIMAGE_OKAY) return 1; |
1493 | |||
1494 | fullName = alloca(strlen(bootPrefix) + | ||
1495 | strlen(line->elements[1].item) + 1); | ||
1496 | rootspec = getRootSpecifier(line->elements[1].item); | ||
1497 | niro | 1745 | int rootspec_offset = rootspec ? strlen(rootspec) : 0; |
1498 | int hasslash = endswith(bootPrefix, '/') || | ||
1499 | beginswith(line->elements[1].item + rootspec_offset, '/'); | ||
1500 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", | ||
1501 | line->elements[1].item + rootspec_offset); | ||
1502 | niro | 1736 | if (access(fullName, R_OK)) { |
1503 | notSuitablePrintf(entry, "access to %s failed\n", fullName); | ||
1504 | return 0; | ||
1505 | } | ||
1506 | niro | 532 | for (i = 2; i < line->numElements; i++) |
1507 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1508 | if (i < line->numElements) { | ||
1509 | dev = line->elements[i].item + 5; | ||
1510 | } else { | ||
1511 | /* look for a lilo style LT_ROOT line */ | ||
1512 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
1513 | niro | 532 | |
1514 | if (line && line->numElements >= 2) { | ||
1515 | dev = line->elements[1].item; | ||
1516 | } else { | ||
1517 | niro | 914 | /* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS. |
1518 | * grub+multiboot uses LT_MBMODULE for the args, so check that too. | ||
1519 | */ | ||
1520 | line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines); | ||
1521 | niro | 532 | |
1522 | /* failed to find one */ | ||
1523 | niro | 1736 | if (!line) { |
1524 | notSuitablePrintf(entry, "no line found\n"); | ||
1525 | return 0; | ||
1526 | } | ||
1527 | niro | 532 | |
1528 | for (i = 1; i < line->numElements; i++) | ||
1529 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1530 | if (i < line->numElements) | ||
1531 | dev = line->elements[i].item + 5; | ||
1532 | else { | ||
1533 | niro | 1736 | notSuitablePrintf(entry, "no root= entry found\n"); |
1534 | niro | 532 | /* it failed too... can't find root= */ |
1535 | return 0; | ||
1536 | } | ||
1537 | } | ||
1538 | } | ||
1539 | |||
1540 | niro | 914 | dev = getpathbyspec(dev); |
1541 | niro | 1736 | if (!getpathbyspec(dev)) { |
1542 | notSuitablePrintf(entry, "can't find blkid entry for %s\n", dev); | ||
1543 | niro | 914 | return 0; |
1544 | niro | 1736 | } else |
1545 | dev = getpathbyspec(dev); | ||
1546 | niro | 532 | |
1547 | niro | 1156 | rootdev = findDiskForRoot(); |
1548 | niro | 1736 | if (!rootdev) { |
1549 | notSuitablePrintf(entry, "can't find root device\n"); | ||
1550 | niro | 914 | return 0; |
1551 | niro | 1736 | } |
1552 | niro | 914 | |
1553 | niro | 1177 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
1554 | niro | 1736 | notSuitablePrintf(entry, "uuid missing: rootdev %s, dev %s\n", |
1555 | getuuidbydev(rootdev), getuuidbydev(dev)); | ||
1556 | niro | 1177 | free(rootdev); |
1557 | return 0; | ||
1558 | } | ||
1559 | niro | 532 | |
1560 | niro | 1156 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
1561 | niro | 1736 | notSuitablePrintf(entry, "uuid mismatch: rootdev %s, dev %s\n", |
1562 | getuuidbydev(rootdev), getuuidbydev(dev)); | ||
1563 | niro | 1156 | free(rootdev); |
1564 | niro | 914 | return 0; |
1565 | niro | 1156 | } |
1566 | niro | 532 | |
1567 | niro | 1156 | free(rootdev); |
1568 | |||
1569 | niro | 532 | return 1; |
1570 | } | ||
1571 | |||
1572 | /* returns the first match on or after the one pointed to by index (if index | ||
1573 | is not NULL) which is not marked as skip */ | ||
1574 | struct singleEntry * findEntryByPath(struct grubConfig * config, | ||
1575 | const char * kernel, const char * prefix, | ||
1576 | int * index) { | ||
1577 | struct singleEntry * entry = NULL; | ||
1578 | struct singleLine * line; | ||
1579 | int i; | ||
1580 | char * chptr; | ||
1581 | char * rootspec = NULL; | ||
1582 | enum lineType_e checkType = LT_KERNEL; | ||
1583 | |||
1584 | if (isdigit(*kernel)) { | ||
1585 | int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); | ||
1586 | |||
1587 | i = 0; | ||
1588 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1589 | while (*chptr == ',') { | ||
1590 | i++; | ||
1591 | kernel = chptr + 1; | ||
1592 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1593 | } | ||
1594 | |||
1595 | if (*chptr) { | ||
1596 | /* can't parse it, bail */ | ||
1597 | return NULL; | ||
1598 | } | ||
1599 | |||
1600 | indexVars[i + 1] = -1; | ||
1601 | |||
1602 | i = 0; | ||
1603 | if (index) { | ||
1604 | while (i < *index) i++; | ||
1605 | if (indexVars[i] == -1) return NULL; | ||
1606 | } | ||
1607 | |||
1608 | entry = findEntryByIndex(config, indexVars[i]); | ||
1609 | if (!entry) return NULL; | ||
1610 | |||
1611 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1612 | niro | 532 | if (!line) return NULL; |
1613 | |||
1614 | if (index) *index = indexVars[i]; | ||
1615 | return entry; | ||
1616 | } | ||
1617 | |||
1618 | if (!strcmp(kernel, "DEFAULT")) { | ||
1619 | if (index && *index > config->defaultImage) { | ||
1620 | entry = NULL; | ||
1621 | } else { | ||
1622 | entry = findEntryByIndex(config, config->defaultImage); | ||
1623 | if (entry && entry->skip) | ||
1624 | entry = NULL; | ||
1625 | else if (index) | ||
1626 | *index = config->defaultImage; | ||
1627 | } | ||
1628 | } else if (!strcmp(kernel, "ALL")) { | ||
1629 | if (index) | ||
1630 | i = *index; | ||
1631 | else | ||
1632 | i = 0; | ||
1633 | |||
1634 | while ((entry = findEntryByIndex(config, i))) { | ||
1635 | if (!entry->skip) break; | ||
1636 | i++; | ||
1637 | } | ||
1638 | |||
1639 | if (entry && index) | ||
1640 | *index = i; | ||
1641 | } else { | ||
1642 | if (index) | ||
1643 | i = *index; | ||
1644 | else | ||
1645 | i = 0; | ||
1646 | |||
1647 | if (!strncmp(kernel, "TITLE=", 6)) { | ||
1648 | prefix = ""; | ||
1649 | checkType = LT_TITLE; | ||
1650 | kernel += 6; | ||
1651 | } | ||
1652 | |||
1653 | niro | 914 | for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) { |
1654 | if (entry->skip) continue; | ||
1655 | niro | 532 | |
1656 | niro | 914 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry); |
1657 | niro | 532 | |
1658 | niro | 914 | /* check all the lines matching checkType */ |
1659 | for (line = entry->lines; line; line = line->next) { | ||
1660 | line = getLineByType(entry->multiboot && checkType == LT_KERNEL ? | ||
1661 | LT_KERNEL|LT_MBMODULE|LT_HYPER : | ||
1662 | checkType, line); | ||
1663 | if (!line) break; /* not found in this entry */ | ||
1664 | niro | 532 | |
1665 | niro | 914 | if (line && line->numElements >= 2) { |
1666 | rootspec = getRootSpecifier(line->elements[1].item); | ||
1667 | if (!strcmp(line->elements[1].item + | ||
1668 | ((rootspec != NULL) ? strlen(rootspec) : 0), | ||
1669 | kernel + strlen(prefix))) | ||
1670 | break; | ||
1671 | } | ||
1672 | } | ||
1673 | |||
1674 | /* make sure this entry has a kernel identifier; this skips | ||
1675 | * non-Linux boot entries (could find netbsd etc, though, which is | ||
1676 | * unfortunate) | ||
1677 | */ | ||
1678 | if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines)) | ||
1679 | break; /* found 'im! */ | ||
1680 | niro | 532 | } |
1681 | |||
1682 | if (index) *index = i; | ||
1683 | } | ||
1684 | |||
1685 | return entry; | ||
1686 | } | ||
1687 | |||
1688 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) { | ||
1689 | struct singleEntry * entry; | ||
1690 | |||
1691 | entry = cfg->entries; | ||
1692 | while (index && entry) { | ||
1693 | entry = entry->next; | ||
1694 | index--; | ||
1695 | } | ||
1696 | |||
1697 | return entry; | ||
1698 | } | ||
1699 | |||
1700 | /* Find a good template to use for the new kernel. An entry is | ||
1701 | * good if the kernel and mkinitrd exist (even if the entry | ||
1702 | * is going to be removed). Try and use the default entry, but | ||
1703 | * if that doesn't work just take the first. If we can't find one, | ||
1704 | * bail. */ | ||
1705 | struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix, | ||
1706 | int * indexPtr, int skipRemoved, int flags) { | ||
1707 | struct singleEntry * entry, * entry2; | ||
1708 | int index; | ||
1709 | |||
1710 | if (cfg->defaultImage > -1) { | ||
1711 | entry = findEntryByIndex(cfg, cfg->defaultImage); | ||
1712 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { | ||
1713 | if (indexPtr) *indexPtr = cfg->defaultImage; | ||
1714 | return entry; | ||
1715 | } | ||
1716 | } | ||
1717 | |||
1718 | index = 0; | ||
1719 | while ((entry = findEntryByIndex(cfg, index))) { | ||
1720 | if (suitableImage(entry, prefix, skipRemoved, flags)) { | ||
1721 | int j; | ||
1722 | for (j = 0; j < index; j++) { | ||
1723 | entry2 = findEntryByIndex(cfg, j); | ||
1724 | if (entry2->skip) index--; | ||
1725 | } | ||
1726 | if (indexPtr) *indexPtr = index; | ||
1727 | |||
1728 | return entry; | ||
1729 | } | ||
1730 | |||
1731 | index++; | ||
1732 | } | ||
1733 | |||
1734 | fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n")); | ||
1735 | |||
1736 | return NULL; | ||
1737 | } | ||
1738 | |||
1739 | char * findBootPrefix(void) { | ||
1740 | struct stat sb, sb2; | ||
1741 | |||
1742 | stat("/", &sb); | ||
1743 | #ifdef __ia64__ | ||
1744 | stat("/boot/efi/EFI/redhat/", &sb2); | ||
1745 | #else | ||
1746 | stat("/boot", &sb2); | ||
1747 | #endif | ||
1748 | |||
1749 | if (sb.st_dev == sb2.st_dev) | ||
1750 | return strdup(""); | ||
1751 | |||
1752 | #ifdef __ia64__ | ||
1753 | return strdup("/boot/efi/EFI/redhat/"); | ||
1754 | #else | ||
1755 | return strdup("/boot"); | ||
1756 | #endif | ||
1757 | } | ||
1758 | |||
1759 | void markRemovedImage(struct grubConfig * cfg, const char * image, | ||
1760 | const char * prefix) { | ||
1761 | struct singleEntry * entry; | ||
1762 | |||
1763 | if (!image) return; | ||
1764 | |||
1765 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) | ||
1766 | entry->skip = 1; | ||
1767 | } | ||
1768 | |||
1769 | void setDefaultImage(struct grubConfig * config, int hasNew, | ||
1770 | const char * defaultKernelPath, int newIsDefault, | ||
1771 | const char * prefix, int flags) { | ||
1772 | struct singleEntry * entry, * entry2, * newDefault; | ||
1773 | int i, j; | ||
1774 | |||
1775 | if (newIsDefault) { | ||
1776 | config->defaultImage = 0; | ||
1777 | return; | ||
1778 | } else if (defaultKernelPath) { | ||
1779 | i = 0; | ||
1780 | if (findEntryByPath(config, defaultKernelPath, prefix, &i)) { | ||
1781 | config->defaultImage = i; | ||
1782 | } else { | ||
1783 | config->defaultImage = -1; | ||
1784 | return; | ||
1785 | } | ||
1786 | } | ||
1787 | |||
1788 | /* defaultImage now points to what we'd like to use, but before any order | ||
1789 | changes */ | ||
1790 | if (config->defaultImage == DEFAULT_SAVED) | ||
1791 | /* default is set to saved, we don't want to change it */ | ||
1792 | return; | ||
1793 | |||
1794 | if (config->defaultImage > -1) | ||
1795 | entry = findEntryByIndex(config, config->defaultImage); | ||
1796 | else | ||
1797 | entry = NULL; | ||
1798 | |||
1799 | if (entry && !entry->skip) { | ||
1800 | /* we can preserve the default */ | ||
1801 | if (hasNew) | ||
1802 | config->defaultImage++; | ||
1803 | |||
1804 | /* count the number of entries erased before this one */ | ||
1805 | for (j = 0; j < config->defaultImage; j++) { | ||
1806 | entry2 = findEntryByIndex(config, j); | ||
1807 | if (entry2->skip) config->defaultImage--; | ||
1808 | } | ||
1809 | } else if (hasNew) { | ||
1810 | config->defaultImage = 0; | ||
1811 | } else { | ||
1812 | /* Either we just erased the default (or the default line was bad | ||
1813 | * to begin with) and didn't put a new one in. We'll use the first | ||
1814 | * valid image. */ | ||
1815 | newDefault = findTemplate(config, prefix, &config->defaultImage, 1, | ||
1816 | flags); | ||
1817 | if (!newDefault) | ||
1818 | config->defaultImage = -1; | ||
1819 | } | ||
1820 | } | ||
1821 | |||
1822 | void setFallbackImage(struct grubConfig * config, int hasNew) { | ||
1823 | struct singleEntry * entry, * entry2; | ||
1824 | int j; | ||
1825 | |||
1826 | if (config->fallbackImage == -1) return; | ||
1827 | |||
1828 | entry = findEntryByIndex(config, config->fallbackImage); | ||
1829 | if (!entry || entry->skip) { | ||
1830 | config->fallbackImage = -1; | ||
1831 | return; | ||
1832 | } | ||
1833 | |||
1834 | if (hasNew) | ||
1835 | config->fallbackImage++; | ||
1836 | |||
1837 | /* count the number of entries erased before this one */ | ||
1838 | for (j = 0; j < config->fallbackImage; j++) { | ||
1839 | entry2 = findEntryByIndex(config, j); | ||
1840 | if (entry2->skip) config->fallbackImage--; | ||
1841 | } | ||
1842 | } | ||
1843 | |||
1844 | void displayEntry(struct singleEntry * entry, const char * prefix, int index) { | ||
1845 | struct singleLine * line; | ||
1846 | char * root = NULL; | ||
1847 | int i; | ||
1848 | |||
1849 | printf("index=%d\n", index); | ||
1850 | |||
1851 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1852 | if (!line) { | ||
1853 | printf("non linux entry\n"); | ||
1854 | return; | ||
1855 | } | ||
1856 | |||
1857 | niro | 1747 | printf("kernel=%s%s\n", prefix, line->elements[1].item); |
1858 | niro | 532 | |
1859 | if (line->numElements >= 3) { | ||
1860 | printf("args=\""); | ||
1861 | i = 2; | ||
1862 | while (i < line->numElements) { | ||
1863 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
1864 | root = line->elements[i].item + 5; | ||
1865 | } else { | ||
1866 | printf("%s%s", line->elements[i].item, | ||
1867 | line->elements[i].indent); | ||
1868 | } | ||
1869 | |||
1870 | i++; | ||
1871 | } | ||
1872 | printf("\"\n"); | ||
1873 | } else { | ||
1874 | niro | 914 | line = getLineByType(LT_KERNELARGS, entry->lines); |
1875 | niro | 532 | if (line) { |
1876 | char * s; | ||
1877 | |||
1878 | printf("args=\""); | ||
1879 | i = 1; | ||
1880 | while (i < line->numElements) { | ||
1881 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
1882 | root = line->elements[i].item + 5; | ||
1883 | } else { | ||
1884 | s = line->elements[i].item; | ||
1885 | |||
1886 | printf("%s%s", s, line->elements[i].indent); | ||
1887 | } | ||
1888 | |||
1889 | i++; | ||
1890 | } | ||
1891 | |||
1892 | s = line->elements[i - 1].indent; | ||
1893 | printf("\"\n"); | ||
1894 | } | ||
1895 | } | ||
1896 | |||
1897 | if (!root) { | ||
1898 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
1899 | niro | 532 | if (line && line->numElements >= 2) |
1900 | root=line->elements[1].item; | ||
1901 | } | ||
1902 | |||
1903 | if (root) { | ||
1904 | char * s = alloca(strlen(root) + 1); | ||
1905 | |||
1906 | strcpy(s, root); | ||
1907 | if (s[strlen(s) - 1] == '"') | ||
1908 | s[strlen(s) - 1] = '\0'; | ||
1909 | /* make sure the root doesn't have a trailing " */ | ||
1910 | printf("root=%s\n", s); | ||
1911 | } | ||
1912 | |||
1913 | niro | 914 | line = getLineByType(LT_INITRD, entry->lines); |
1914 | niro | 532 | |
1915 | if (line && line->numElements >= 2) { | ||
1916 | printf("initrd=%s", prefix); | ||
1917 | for (i = 1; i < line->numElements; i++) | ||
1918 | printf("%s%s", line->elements[i].item, line->elements[i].indent); | ||
1919 | printf("\n"); | ||
1920 | } | ||
1921 | } | ||
1922 | |||
1923 | int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) { | ||
1924 | FILE * in; | ||
1925 | char buf[1024]; | ||
1926 | char * chptr; | ||
1927 | char * start; | ||
1928 | char * param; | ||
1929 | |||
1930 | niro | 926 | in = fopen("/etc/conf.d/grub", "r"); |
1931 | niro | 532 | if (!in) return 1; |
1932 | |||
1933 | if (lbaPtr) *lbaPtr = 0; | ||
1934 | if (bootPtr) *bootPtr = NULL; | ||
1935 | |||
1936 | while (fgets(buf, sizeof(buf), in)) { | ||
1937 | start = buf; | ||
1938 | while (isspace(*start)) start++; | ||
1939 | if (*start == '#') continue; | ||
1940 | |||
1941 | chptr = strchr(start, '='); | ||
1942 | if (!chptr) continue; | ||
1943 | chptr--; | ||
1944 | while (*chptr && isspace(*chptr)) chptr--; | ||
1945 | chptr++; | ||
1946 | *chptr = '\0'; | ||
1947 | |||
1948 | param = chptr + 1; | ||
1949 | while (*param && isspace(*param)) param++; | ||
1950 | if (*param == '=') { | ||
1951 | param++; | ||
1952 | while (*param && isspace(*param)) param++; | ||
1953 | } | ||
1954 | |||
1955 | chptr = param; | ||
1956 | while (*chptr && !isspace(*chptr)) chptr++; | ||
1957 | *chptr = '\0'; | ||
1958 | |||
1959 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) | ||
1960 | *lbaPtr = 1; | ||
1961 | else if (!strcmp(start, "boot") && bootPtr) | ||
1962 | *bootPtr = strdup(param); | ||
1963 | } | ||
1964 | |||
1965 | fclose(in); | ||
1966 | |||
1967 | return 0; | ||
1968 | } | ||
1969 | |||
1970 | void dumpSysconfigGrub(void) { | ||
1971 | char * boot; | ||
1972 | int lba; | ||
1973 | |||
1974 | if (!parseSysconfigGrub(&lba, &boot)) { | ||
1975 | if (lba) printf("lba\n"); | ||
1976 | if (boot) printf("boot=%s\n", boot); | ||
1977 | } | ||
1978 | } | ||
1979 | |||
1980 | int displayInfo(struct grubConfig * config, char * kernel, | ||
1981 | const char * prefix) { | ||
1982 | int i = 0; | ||
1983 | struct singleEntry * entry; | ||
1984 | struct singleLine * line; | ||
1985 | |||
1986 | entry = findEntryByPath(config, kernel, prefix, &i); | ||
1987 | if (!entry) { | ||
1988 | fprintf(stderr, _("grubby: kernel not found\n")); | ||
1989 | return 1; | ||
1990 | } | ||
1991 | |||
1992 | niro | 926 | /* this is a horrible hack to support /etc/conf.d/grub; there must |
1993 | niro | 532 | be a better way */ |
1994 | if (config->cfi == &grubConfigType) { | ||
1995 | dumpSysconfigGrub(); | ||
1996 | } else { | ||
1997 | niro | 914 | line = getLineByType(LT_BOOT, config->theLines); |
1998 | niro | 532 | if (line && line->numElements >= 1) { |
1999 | printf("boot=%s\n", line->elements[1].item); | ||
2000 | } | ||
2001 | |||
2002 | niro | 914 | line = getLineByType(LT_LBA, config->theLines); |
2003 | niro | 532 | if (line) printf("lba\n"); |
2004 | } | ||
2005 | |||
2006 | displayEntry(entry, prefix, i); | ||
2007 | |||
2008 | i++; | ||
2009 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { | ||
2010 | displayEntry(entry, prefix, i); | ||
2011 | i++; | ||
2012 | } | ||
2013 | |||
2014 | return 0; | ||
2015 | } | ||
2016 | |||
2017 | niro | 914 | struct singleLine * addLineTmpl(struct singleEntry * entry, |
2018 | struct singleLine * tmplLine, | ||
2019 | struct singleLine * prevLine, | ||
2020 | const char * val, | ||
2021 | struct configFileInfo * cfi) | ||
2022 | { | ||
2023 | struct singleLine * newLine = lineDup(tmplLine); | ||
2024 | |||
2025 | if (val) { | ||
2026 | /* override the inherited value with our own. | ||
2027 | * This is a little weak because it only applies to elements[1] | ||
2028 | */ | ||
2029 | if (newLine->numElements > 1) | ||
2030 | removeElement(newLine, 1); | ||
2031 | insertElement(newLine, val, 1, cfi); | ||
2032 | |||
2033 | /* but try to keep the rootspec from the template... sigh */ | ||
2034 | if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) { | ||
2035 | char * rootspec = getRootSpecifier(tmplLine->elements[1].item); | ||
2036 | if (rootspec != NULL) { | ||
2037 | free(newLine->elements[1].item); | ||
2038 | newLine->elements[1].item = | ||
2039 | sdupprintf("%s%s", rootspec, val); | ||
2040 | } | ||
2041 | } | ||
2042 | } | ||
2043 | |||
2044 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? | ||
2045 | newLine->elements[0].item : ""); | ||
2046 | |||
2047 | if (!entry->lines) { | ||
2048 | /* first one on the list */ | ||
2049 | entry->lines = newLine; | ||
2050 | } else if (prevLine) { | ||
2051 | /* add after prevLine */ | ||
2052 | newLine->next = prevLine->next; | ||
2053 | prevLine->next = newLine; | ||
2054 | } | ||
2055 | |||
2056 | return newLine; | ||
2057 | } | ||
2058 | |||
2059 | niro | 532 | /* val may be NULL */ |
2060 | struct singleLine * addLine(struct singleEntry * entry, | ||
2061 | struct configFileInfo * cfi, | ||
2062 | niro | 914 | enum lineType_e type, char * defaultIndent, |
2063 | const char * val) { | ||
2064 | niro | 532 | struct singleLine * line, * prev; |
2065 | niro | 914 | struct keywordTypes * kw; |
2066 | struct singleLine tmpl; | ||
2067 | niro | 532 | |
2068 | niro | 914 | /* NB: This function shouldn't allocate items on the heap, rather on the |
2069 | * stack since it calls addLineTmpl which will make copies. | ||
2070 | */ | ||
2071 | niro | 532 | |
2072 | niro | 914 | if (type == LT_TITLE && cfi->titleBracketed) { |
2073 | /* we're doing a bracketed title (zipl) */ | ||
2074 | tmpl.type = type; | ||
2075 | tmpl.numElements = 1; | ||
2076 | tmpl.elements = alloca(sizeof(*tmpl.elements)); | ||
2077 | tmpl.elements[0].item = alloca(strlen(val)+3); | ||
2078 | sprintf(tmpl.elements[0].item, "[%s]", val); | ||
2079 | tmpl.elements[0].indent = ""; | ||
2080 | val = NULL; | ||
2081 | niro | 1696 | } else if (type == LT_MENUENTRY) { |
2082 | char *lineend = "--class gnu-linux --class gnu --class os {"; | ||
2083 | if (!val) { | ||
2084 | fprintf(stderr, "Line type LT_MENUENTRY requires a value\n"); | ||
2085 | abort(); | ||
2086 | } | ||
2087 | kw = getKeywordByType(type, cfi); | ||
2088 | if (!kw) { | ||
2089 | fprintf(stderr, "Looking up keyword for unknown type %d\n", type); | ||
2090 | abort(); | ||
2091 | } | ||
2092 | tmpl.indent = ""; | ||
2093 | tmpl.type = type; | ||
2094 | tmpl.numElements = 3; | ||
2095 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
2096 | tmpl.elements[0].item = kw->key; | ||
2097 | tmpl.elements[0].indent = alloca(2); | ||
2098 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
2099 | tmpl.elements[1].item = (char *)val; | ||
2100 | tmpl.elements[1].indent = alloca(2); | ||
2101 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); | ||
2102 | tmpl.elements[2].item = alloca(strlen(lineend)+1); | ||
2103 | strcpy(tmpl.elements[2].item, lineend); | ||
2104 | tmpl.elements[2].indent = ""; | ||
2105 | niro | 914 | } else { |
2106 | kw = getKeywordByType(type, cfi); | ||
2107 | niro | 1696 | if (!kw) { |
2108 | fprintf(stderr, "Looking up keyword for unknown type %d\n", type); | ||
2109 | abort(); | ||
2110 | } | ||
2111 | niro | 914 | tmpl.type = type; |
2112 | tmpl.numElements = val ? 2 : 1; | ||
2113 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
2114 | tmpl.elements[0].item = kw->key; | ||
2115 | tmpl.elements[0].indent = alloca(2); | ||
2116 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
2117 | if (val) { | ||
2118 | tmpl.elements[1].item = (char *)val; | ||
2119 | tmpl.elements[1].indent = ""; | ||
2120 | } | ||
2121 | } | ||
2122 | |||
2123 | niro | 532 | /* The last non-empty line gives us the indention to us and the line |
2124 | to insert after. Note that comments are considered empty lines, which | ||
2125 | may not be ideal? If there are no lines or we are looking at the | ||
2126 | first line, we use defaultIndent (the first line is normally indented | ||
2127 | differently from the rest) */ | ||
2128 | niro | 914 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
2129 | if (line->numElements) prev = line; | ||
2130 | /* fall back on the last line if prev isn't otherwise set */ | ||
2131 | if (!line->next && !prev) prev = line; | ||
2132 | niro | 532 | } |
2133 | |||
2134 | niro | 1696 | struct singleLine *menuEntry; |
2135 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); | ||
2136 | if (tmpl.type == LT_ENTRY_END) { | ||
2137 | if (menuEntry) | ||
2138 | tmpl.indent = menuEntry->indent; | ||
2139 | else | ||
2140 | tmpl.indent = defaultIndent ?: ""; | ||
2141 | } else if (tmpl.type != LT_MENUENTRY) { | ||
2142 | if (menuEntry) | ||
2143 | tmpl.indent = "\t"; | ||
2144 | else if (prev == entry->lines) | ||
2145 | tmpl.indent = defaultIndent ?: ""; | ||
2146 | else | ||
2147 | tmpl.indent = prev->indent; | ||
2148 | } | ||
2149 | niro | 532 | |
2150 | niro | 914 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
2151 | niro | 532 | } |
2152 | |||
2153 | void removeLine(struct singleEntry * entry, struct singleLine * line) { | ||
2154 | struct singleLine * prev; | ||
2155 | int i; | ||
2156 | |||
2157 | for (i = 0; i < line->numElements; i++) { | ||
2158 | free(line->elements[i].item); | ||
2159 | free(line->elements[i].indent); | ||
2160 | } | ||
2161 | free(line->elements); | ||
2162 | free(line->indent); | ||
2163 | |||
2164 | if (line == entry->lines) { | ||
2165 | entry->lines = line->next; | ||
2166 | } else { | ||
2167 | prev = entry->lines; | ||
2168 | while (prev->next != line) prev = prev->next; | ||
2169 | prev->next = line->next; | ||
2170 | } | ||
2171 | |||
2172 | free(line); | ||
2173 | } | ||
2174 | |||
2175 | niro | 1696 | static int isquote(char q) |
2176 | { | ||
2177 | if (q == '\'' || q == '\"') | ||
2178 | return 1; | ||
2179 | return 0; | ||
2180 | } | ||
2181 | |||
2182 | static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi) | ||
2183 | { | ||
2184 | struct singleLine newLine = { | ||
2185 | .indent = tmplLine->indent, | ||
2186 | .type = tmplLine->type, | ||
2187 | .next = tmplLine->next, | ||
2188 | }; | ||
2189 | int firstQuotedItem = -1; | ||
2190 | int quoteLen = 0; | ||
2191 | int j; | ||
2192 | int element = 0; | ||
2193 | char *c; | ||
2194 | |||
2195 | c = malloc(strlen(tmplLine->elements[0].item) + 1); | ||
2196 | strcpy(c, tmplLine->elements[0].item); | ||
2197 | insertElement(&newLine, c, element++, cfi); | ||
2198 | free(c); | ||
2199 | c = NULL; | ||
2200 | |||
2201 | for (j = 1; j < tmplLine->numElements; j++) { | ||
2202 | if (firstQuotedItem == -1) { | ||
2203 | quoteLen += strlen(tmplLine->elements[j].item); | ||
2204 | |||
2205 | if (isquote(tmplLine->elements[j].item[0])) { | ||
2206 | firstQuotedItem = j; | ||
2207 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
2208 | } else { | ||
2209 | c = malloc(quoteLen + 1); | ||
2210 | strcpy(c, tmplLine->elements[j].item); | ||
2211 | insertElement(&newLine, c, element++, cfi); | ||
2212 | free(c); | ||
2213 | quoteLen = 0; | ||
2214 | } | ||
2215 | } else { | ||
2216 | int itemlen = strlen(tmplLine->elements[j].item); | ||
2217 | quoteLen += itemlen; | ||
2218 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
2219 | |||
2220 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { | ||
2221 | c = malloc(quoteLen + 1); | ||
2222 | c[0] = '\0'; | ||
2223 | for (int i = firstQuotedItem; i < j+1; i++) { | ||
2224 | strcat(c, tmplLine->elements[i].item); | ||
2225 | strcat(c, tmplLine->elements[i].indent); | ||
2226 | } | ||
2227 | insertElement(&newLine, c, element++, cfi); | ||
2228 | free(c); | ||
2229 | |||
2230 | firstQuotedItem = -1; | ||
2231 | quoteLen = 0; | ||
2232 | } | ||
2233 | } | ||
2234 | } | ||
2235 | while (tmplLine->numElements) | ||
2236 | removeElement(tmplLine, 0); | ||
2237 | if (tmplLine->elements) | ||
2238 | free(tmplLine->elements); | ||
2239 | |||
2240 | tmplLine->numElements = newLine.numElements; | ||
2241 | tmplLine->elements = newLine.elements; | ||
2242 | } | ||
2243 | |||
2244 | niro | 914 | static void insertElement(struct singleLine * line, |
2245 | const char * item, int insertHere, | ||
2246 | struct configFileInfo * cfi) | ||
2247 | { | ||
2248 | struct keywordTypes * kw; | ||
2249 | char indent[2] = ""; | ||
2250 | |||
2251 | /* sanity check */ | ||
2252 | if (insertHere > line->numElements) { | ||
2253 | dbgPrintf("insertElement() adjusting insertHere from %d to %d\n", | ||
2254 | insertHere, line->numElements); | ||
2255 | insertHere = line->numElements; | ||
2256 | } | ||
2257 | |||
2258 | line->elements = realloc(line->elements, (line->numElements + 1) * | ||
2259 | sizeof(*line->elements)); | ||
2260 | memmove(&line->elements[insertHere+1], | ||
2261 | &line->elements[insertHere], | ||
2262 | (line->numElements - insertHere) * | ||
2263 | sizeof(*line->elements)); | ||
2264 | line->elements[insertHere].item = strdup(item); | ||
2265 | |||
2266 | kw = getKeywordByType(line->type, cfi); | ||
2267 | |||
2268 | if (line->numElements == 0) { | ||
2269 | indent[0] = '\0'; | ||
2270 | } else if (insertHere == 0) { | ||
2271 | indent[0] = kw->nextChar; | ||
2272 | } else if (kw->separatorChar != '\0') { | ||
2273 | indent[0] = kw->separatorChar; | ||
2274 | } else { | ||
2275 | indent[0] = ' '; | ||
2276 | } | ||
2277 | |||
2278 | if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') { | ||
2279 | /* move the end-of-line forward */ | ||
2280 | line->elements[insertHere].indent = | ||
2281 | line->elements[insertHere-1].indent; | ||
2282 | line->elements[insertHere-1].indent = strdup(indent); | ||
2283 | } else { | ||
2284 | line->elements[insertHere].indent = strdup(indent); | ||
2285 | } | ||
2286 | |||
2287 | line->numElements++; | ||
2288 | |||
2289 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", | ||
2290 | line->elements[0].item, | ||
2291 | line->elements[insertHere].item, | ||
2292 | line->elements[insertHere].indent, | ||
2293 | insertHere); | ||
2294 | } | ||
2295 | |||
2296 | static void removeElement(struct singleLine * line, int removeHere) { | ||
2297 | int i; | ||
2298 | |||
2299 | /* sanity check */ | ||
2300 | if (removeHere >= line->numElements) return; | ||
2301 | |||
2302 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, | ||
2303 | removeHere, line->elements[removeHere].item); | ||
2304 | |||
2305 | free(line->elements[removeHere].item); | ||
2306 | |||
2307 | if (removeHere > 1) { | ||
2308 | /* previous argument gets this argument's post-indentation */ | ||
2309 | free(line->elements[removeHere-1].indent); | ||
2310 | line->elements[removeHere-1].indent = | ||
2311 | line->elements[removeHere].indent; | ||
2312 | } else { | ||
2313 | free(line->elements[removeHere].indent); | ||
2314 | } | ||
2315 | |||
2316 | /* now collapse the array, but don't bother to realloc smaller */ | ||
2317 | for (i = removeHere; i < line->numElements - 1; i++) | ||
2318 | line->elements[i] = line->elements[i + 1]; | ||
2319 | |||
2320 | line->numElements--; | ||
2321 | } | ||
2322 | |||
2323 | niro | 532 | int argMatch(const char * one, const char * two) { |
2324 | char * first, * second; | ||
2325 | char * chptr; | ||
2326 | |||
2327 | first = strcpy(alloca(strlen(one) + 1), one); | ||
2328 | second = strcpy(alloca(strlen(two) + 1), two); | ||
2329 | |||
2330 | chptr = strchr(first, '='); | ||
2331 | if (chptr) *chptr = '\0'; | ||
2332 | |||
2333 | chptr = strchr(second, '='); | ||
2334 | if (chptr) *chptr = '\0'; | ||
2335 | |||
2336 | return strcmp(first, second); | ||
2337 | } | ||
2338 | |||
2339 | int updateActualImage(struct grubConfig * cfg, const char * image, | ||
2340 | const char * prefix, const char * addArgs, | ||
2341 | const char * removeArgs, int multibootArgs) { | ||
2342 | struct singleEntry * entry; | ||
2343 | struct singleLine * line, * rootLine; | ||
2344 | int index = 0; | ||
2345 | niro | 914 | int i, k; |
2346 | niro | 532 | const char ** newArgs, ** oldArgs; |
2347 | const char ** arg; | ||
2348 | niro | 914 | int useKernelArgs, useRoot; |
2349 | niro | 532 | int firstElement; |
2350 | niro | 1304 | int *usedElements; |
2351 | niro | 914 | int doreplace; |
2352 | niro | 532 | |
2353 | if (!image) return 0; | ||
2354 | |||
2355 | if (!addArgs) { | ||
2356 | newArgs = malloc(sizeof(*newArgs)); | ||
2357 | *newArgs = NULL; | ||
2358 | } else { | ||
2359 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { | ||
2360 | fprintf(stderr, | ||
2361 | _("grubby: error separating arguments '%s'\n"), addArgs); | ||
2362 | return 1; | ||
2363 | } | ||
2364 | } | ||
2365 | |||
2366 | if (!removeArgs) { | ||
2367 | oldArgs = malloc(sizeof(*oldArgs)); | ||
2368 | *oldArgs = NULL; | ||
2369 | } else { | ||
2370 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { | ||
2371 | fprintf(stderr, | ||
2372 | _("grubby: error separating arguments '%s'\n"), removeArgs); | ||
2373 | free(newArgs); | ||
2374 | return 1; | ||
2375 | } | ||
2376 | } | ||
2377 | |||
2378 | |||
2379 | niro | 914 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
2380 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); | ||
2381 | niro | 532 | |
2382 | niro | 914 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
2383 | && !multibootArgs); | ||
2384 | niro | 532 | |
2385 | niro | 914 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
2386 | niro | 532 | |
2387 | niro | 914 | if (multibootArgs && !entry->multiboot) |
2388 | continue; | ||
2389 | niro | 532 | |
2390 | niro | 914 | /* Determine where to put the args. If this config supports |
2391 | * LT_KERNELARGS, use that. Otherwise use | ||
2392 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. | ||
2393 | */ | ||
2394 | if (useKernelArgs) { | ||
2395 | line = getLineByType(LT_KERNELARGS, entry->lines); | ||
2396 | if (!line) { | ||
2397 | /* no LT_KERNELARGS, need to add it */ | ||
2398 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, | ||
2399 | cfg->secondaryIndent, NULL); | ||
2400 | } | ||
2401 | firstElement = 1; | ||
2402 | niro | 532 | |
2403 | niro | 914 | } else if (multibootArgs) { |
2404 | line = getLineByType(LT_HYPER, entry->lines); | ||
2405 | if (!line) { | ||
2406 | /* a multiboot entry without LT_HYPER? */ | ||
2407 | continue; | ||
2408 | } | ||
2409 | firstElement = 2; | ||
2410 | |||
2411 | } else { | ||
2412 | line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines); | ||
2413 | if (!line) { | ||
2414 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ | ||
2415 | continue; | ||
2416 | } | ||
2417 | firstElement = 2; | ||
2418 | niro | 532 | } |
2419 | |||
2420 | niro | 914 | /* handle the elilo case which does: |
2421 | * append="hypervisor args -- kernel args" | ||
2422 | */ | ||
2423 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { | ||
2424 | /* this is a multiboot entry, make sure there's | ||
2425 | * -- on the args line | ||
2426 | */ | ||
2427 | for (i = firstElement; i < line->numElements; i++) { | ||
2428 | if (!strcmp(line->elements[i].item, "--")) | ||
2429 | break; | ||
2430 | } | ||
2431 | if (i == line->numElements) { | ||
2432 | /* assume all existing args are kernel args, | ||
2433 | * prepend -- to make it official | ||
2434 | */ | ||
2435 | insertElement(line, "--", firstElement, cfg->cfi); | ||
2436 | i = firstElement; | ||
2437 | } | ||
2438 | if (!multibootArgs) { | ||
2439 | /* kernel args start after the -- */ | ||
2440 | firstElement = i + 1; | ||
2441 | } | ||
2442 | } else if (cfg->cfi->mbConcatArgs) { | ||
2443 | /* this is a non-multiboot entry, remove hyper args */ | ||
2444 | for (i = firstElement; i < line->numElements; i++) { | ||
2445 | if (!strcmp(line->elements[i].item, "--")) | ||
2446 | break; | ||
2447 | } | ||
2448 | if (i < line->numElements) { | ||
2449 | /* remove args up to -- */ | ||
2450 | while (strcmp(line->elements[firstElement].item, "--")) | ||
2451 | removeElement(line, firstElement); | ||
2452 | /* remove -- */ | ||
2453 | removeElement(line, firstElement); | ||
2454 | } | ||
2455 | niro | 532 | } |
2456 | |||
2457 | niro | 914 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
2458 | niro | 532 | |
2459 | niro | 914 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
2460 | |||
2461 | doreplace = 1; | ||
2462 | niro | 532 | for (i = firstElement; i < line->numElements; i++) { |
2463 | niro | 914 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
2464 | !strcmp(line->elements[i].item, "--")) | ||
2465 | { | ||
2466 | /* reached the end of hyper args, insert here */ | ||
2467 | doreplace = 0; | ||
2468 | break; | ||
2469 | } | ||
2470 | niro | 532 | if (usedElements[i]) |
2471 | continue; | ||
2472 | if (!argMatch(line->elements[i].item, *arg)) { | ||
2473 | usedElements[i]=1; | ||
2474 | break; | ||
2475 | } | ||
2476 | } | ||
2477 | |||
2478 | niro | 914 | if (i < line->numElements && doreplace) { |
2479 | /* direct replacement */ | ||
2480 | niro | 532 | free(line->elements[i].item); |
2481 | line->elements[i].item = strdup(*arg); | ||
2482 | |||
2483 | niro | 914 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
2484 | /* root= replacement */ | ||
2485 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
2486 | if (rootLine) { | ||
2487 | free(rootLine->elements[1].item); | ||
2488 | rootLine->elements[1].item = strdup(*arg + 5); | ||
2489 | niro | 532 | } else { |
2490 | niro | 914 | rootLine = addLine(entry, cfg->cfi, LT_ROOT, |
2491 | cfg->secondaryIndent, *arg + 5); | ||
2492 | niro | 532 | } |
2493 | niro | 914 | } |
2494 | niro | 532 | |
2495 | niro | 914 | else { |
2496 | /* insert/append */ | ||
2497 | insertElement(line, *arg, i, cfg->cfi); | ||
2498 | usedElements = realloc(usedElements, line->numElements * | ||
2499 | sizeof(*usedElements)); | ||
2500 | memmove(&usedElements[i + 1], &usedElements[i], | ||
2501 | line->numElements - i - 1); | ||
2502 | usedElements[i] = 1; | ||
2503 | niro | 532 | |
2504 | /* if we updated a root= here even though there is a | ||
2505 | LT_ROOT available we need to remove the LT_ROOT entry | ||
2506 | (this will happen if we switch from a device to a label) */ | ||
2507 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
2508 | niro | 914 | rootLine = getLineByType(LT_ROOT, entry->lines); |
2509 | if (rootLine) | ||
2510 | niro | 532 | removeLine(entry, rootLine); |
2511 | } | ||
2512 | } | ||
2513 | } | ||
2514 | |||
2515 | free(usedElements); | ||
2516 | |||
2517 | for (arg = oldArgs; *arg; arg++) { | ||
2518 | niro | 914 | for (i = firstElement; i < line->numElements; i++) { |
2519 | if (multibootArgs && cfg->cfi->mbConcatArgs && | ||
2520 | !strcmp(line->elements[i].item, "--")) | ||
2521 | /* reached the end of hyper args, stop here */ | ||
2522 | niro | 532 | break; |
2523 | niro | 914 | if (!argMatch(line->elements[i].item, *arg)) { |
2524 | removeElement(line, i); | ||
2525 | break; | ||
2526 | niro | 532 | } |
2527 | } | ||
2528 | niro | 914 | /* handle removing LT_ROOT line too */ |
2529 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
2530 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
2531 | if (rootLine) | ||
2532 | removeLine(entry, rootLine); | ||
2533 | } | ||
2534 | niro | 532 | } |
2535 | |||
2536 | if (line->numElements == 1) { | ||
2537 | /* don't need the line at all (note it has to be a | ||
2538 | LT_KERNELARGS for this to happen */ | ||
2539 | removeLine(entry, line); | ||
2540 | } | ||
2541 | } | ||
2542 | |||
2543 | free(newArgs); | ||
2544 | free(oldArgs); | ||
2545 | |||
2546 | return 0; | ||
2547 | } | ||
2548 | |||
2549 | int updateImage(struct grubConfig * cfg, const char * image, | ||
2550 | const char * prefix, const char * addArgs, | ||
2551 | const char * removeArgs, | ||
2552 | const char * addMBArgs, const char * removeMBArgs) { | ||
2553 | int rc = 0; | ||
2554 | |||
2555 | if (!image) return rc; | ||
2556 | |||
2557 | /* update the main args first... */ | ||
2558 | if (addArgs || removeArgs) | ||
2559 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0); | ||
2560 | if (rc) return rc; | ||
2561 | |||
2562 | /* and now any multiboot args */ | ||
2563 | if (addMBArgs || removeMBArgs) | ||
2564 | rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1); | ||
2565 | return rc; | ||
2566 | } | ||
2567 | |||
2568 | niro | 1156 | int updateInitrd(struct grubConfig * cfg, const char * image, |
2569 | const char * prefix, const char * initrd) { | ||
2570 | struct singleEntry * entry; | ||
2571 | niro | 1696 | struct singleLine * line, * kernelLine, *endLine = NULL; |
2572 | niro | 1156 | int index = 0; |
2573 | |||
2574 | if (!image) return 0; | ||
2575 | |||
2576 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { | ||
2577 | kernelLine = getLineByType(LT_KERNEL, entry->lines); | ||
2578 | if (!kernelLine) continue; | ||
2579 | |||
2580 | line = getLineByType(LT_INITRD, entry->lines); | ||
2581 | if (line) | ||
2582 | removeLine(entry, line); | ||
2583 | if (prefix) { | ||
2584 | int prefixLen = strlen(prefix); | ||
2585 | if (!strncmp(initrd, prefix, prefixLen)) | ||
2586 | initrd += prefixLen; | ||
2587 | } | ||
2588 | niro | 1696 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
2589 | if (endLine) | ||
2590 | removeLine(entry, endLine); | ||
2591 | niro | 1156 | line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd); |
2592 | niro | 1696 | if (!line) |
2593 | return 1; | ||
2594 | if (endLine) { | ||
2595 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); | ||
2596 | if (!line) | ||
2597 | return 1; | ||
2598 | } | ||
2599 | |||
2600 | niro | 1156 | break; |
2601 | } | ||
2602 | |||
2603 | return 0; | ||
2604 | } | ||
2605 | |||
2606 | niro | 532 | int checkDeviceBootloader(const char * device, const unsigned char * boot) { |
2607 | int fd; | ||
2608 | unsigned char bootSect[512]; | ||
2609 | int offset; | ||
2610 | |||
2611 | fd = open(device, O_RDONLY); | ||
2612 | if (fd < 0) { | ||
2613 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
2614 | device, strerror(errno)); | ||
2615 | return 1; | ||
2616 | } | ||
2617 | |||
2618 | if (read(fd, bootSect, 512) != 512) { | ||
2619 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2620 | device, strerror(errno)); | ||
2621 | return 1; | ||
2622 | } | ||
2623 | close(fd); | ||
2624 | |||
2625 | /* first three bytes should match, a jmp short should be in there */ | ||
2626 | if (memcmp(boot, bootSect, 3)) | ||
2627 | return 0; | ||
2628 | |||
2629 | niro | 1718 | if (boot[1] == JMP_SHORT_OPCODE) { |
2630 | niro | 532 | offset = boot[2] + 2; |
2631 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { | ||
2632 | offset = (boot[3] << 8) + boot[2] + 2; | ||
2633 | niro | 1718 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
2634 | offset = boot[1] + 2; | ||
2635 | /* | ||
2636 | * it looks like grub, when copying stage1 into the mbr, patches stage1 | ||
2637 | * right after the JMP location, replacing other instructions such as | ||
2638 | * JMPs for NOOPs. So, relax the check a little bit by skipping those | ||
2639 | * different bytes. | ||
2640 | */ | ||
2641 | if ((bootSect[offset + 1] == NOOP_OPCODE) | ||
2642 | && (bootSect[offset + 2] == NOOP_OPCODE)) { | ||
2643 | offset = offset + 3; | ||
2644 | } | ||
2645 | niro | 532 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
2646 | offset = (boot[2] << 8) + boot[1] + 2; | ||
2647 | } else { | ||
2648 | return 0; | ||
2649 | } | ||
2650 | |||
2651 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) | ||
2652 | return 0; | ||
2653 | |||
2654 | return 2; | ||
2655 | } | ||
2656 | |||
2657 | int checkLiloOnRaid(char * mdDev, const unsigned char * boot) { | ||
2658 | int fd; | ||
2659 | char buf[65536]; | ||
2660 | char * end; | ||
2661 | char * chptr; | ||
2662 | char * chptr2; | ||
2663 | int rc; | ||
2664 | |||
2665 | /* it's on raid; we need to parse /proc/mdstat and check all of the | ||
2666 | *raw* devices listed in there */ | ||
2667 | |||
2668 | if (!strncmp(mdDev, "/dev/", 5)) | ||
2669 | mdDev += 5; | ||
2670 | |||
2671 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { | ||
2672 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), | ||
2673 | strerror(errno)); | ||
2674 | return 2; | ||
2675 | } | ||
2676 | |||
2677 | rc = read(fd, buf, sizeof(buf) - 1); | ||
2678 | if (rc < 0 || rc == (sizeof(buf) - 1)) { | ||
2679 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), | ||
2680 | strerror(errno)); | ||
2681 | close(fd); | ||
2682 | return 2; | ||
2683 | } | ||
2684 | close(fd); | ||
2685 | buf[rc] = '\0'; | ||
2686 | |||
2687 | chptr = buf; | ||
2688 | while (*chptr) { | ||
2689 | end = strchr(chptr, '\n'); | ||
2690 | if (!end) break; | ||
2691 | *end = '\0'; | ||
2692 | |||
2693 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && | ||
2694 | chptr[strlen(mdDev)] == ' ') { | ||
2695 | |||
2696 | /* found the device */ | ||
2697 | while (*chptr && *chptr != ':') chptr++; | ||
2698 | chptr++; | ||
2699 | while (*chptr && isspace(*chptr)) chptr++; | ||
2700 | |||
2701 | /* skip the "active" bit */ | ||
2702 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2703 | while (*chptr && isspace(*chptr)) chptr++; | ||
2704 | |||
2705 | /* skip the raid level */ | ||
2706 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2707 | while (*chptr && isspace(*chptr)) chptr++; | ||
2708 | |||
2709 | /* everything else is partition stuff */ | ||
2710 | while (*chptr) { | ||
2711 | chptr2 = chptr; | ||
2712 | while (*chptr2 && *chptr2 != '[') chptr2++; | ||
2713 | if (!*chptr2) break; | ||
2714 | |||
2715 | /* yank off the numbers at the end */ | ||
2716 | chptr2--; | ||
2717 | while (isdigit(*chptr2) && chptr2 > chptr) chptr2--; | ||
2718 | chptr2++; | ||
2719 | *chptr2 = '\0'; | ||
2720 | |||
2721 | /* Better, now we need the /dev/ back. We're done with | ||
2722 | * everything before this point, so we can just put | ||
2723 | * the /dev/ part there. There will always be room. */ | ||
2724 | memcpy(chptr - 5, "/dev/", 5); | ||
2725 | rc = checkDeviceBootloader(chptr - 5, boot); | ||
2726 | if (rc != 2) { | ||
2727 | return rc; | ||
2728 | } | ||
2729 | |||
2730 | chptr = chptr2 + 1; | ||
2731 | /* skip the [11] bit */ | ||
2732 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2733 | /* and move to the next one */ | ||
2734 | while (*chptr && isspace(*chptr)) chptr++; | ||
2735 | } | ||
2736 | |||
2737 | /* we're good to go */ | ||
2738 | return 2; | ||
2739 | } | ||
2740 | |||
2741 | chptr = end + 1; | ||
2742 | } | ||
2743 | |||
2744 | fprintf(stderr, | ||
2745 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), | ||
2746 | mdDev); | ||
2747 | return 0; | ||
2748 | } | ||
2749 | |||
2750 | int checkForLilo(struct grubConfig * config) { | ||
2751 | int fd; | ||
2752 | unsigned char boot[512]; | ||
2753 | struct singleLine * line; | ||
2754 | |||
2755 | for (line = config->theLines; line; line = line->next) | ||
2756 | if (line->type == LT_BOOT) break; | ||
2757 | |||
2758 | if (!line) { | ||
2759 | fprintf(stderr, | ||
2760 | _("grubby: no boot line found in lilo configuration\n")); | ||
2761 | return 1; | ||
2762 | } | ||
2763 | |||
2764 | if (line->numElements != 2) return 1; | ||
2765 | |||
2766 | fd = open("/boot/boot.b", O_RDONLY); | ||
2767 | if (fd < 0) { | ||
2768 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
2769 | "/boot/boot.b", strerror(errno)); | ||
2770 | return 1; | ||
2771 | } | ||
2772 | |||
2773 | if (read(fd, boot, 512) != 512) { | ||
2774 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2775 | "/boot/boot.b", strerror(errno)); | ||
2776 | return 1; | ||
2777 | } | ||
2778 | close(fd); | ||
2779 | |||
2780 | if (!strncmp("/dev/md", line->elements[1].item, 7)) | ||
2781 | return checkLiloOnRaid(line->elements[1].item, boot); | ||
2782 | |||
2783 | return checkDeviceBootloader(line->elements[1].item, boot); | ||
2784 | } | ||
2785 | |||
2786 | niro | 1696 | int checkForGrub2(struct grubConfig * config) { |
2787 | niro | 1714 | if (!access("/etc/grub.d/", R_OK)) |
2788 | niro | 1696 | return 2; |
2789 | |||
2790 | return 1; | ||
2791 | } | ||
2792 | |||
2793 | niro | 532 | int checkForGrub(struct grubConfig * config) { |
2794 | int fd; | ||
2795 | unsigned char bootSect[512]; | ||
2796 | char * boot; | ||
2797 | |||
2798 | if (parseSysconfigGrub(NULL, &boot)) | ||
2799 | return 0; | ||
2800 | |||
2801 | /* assume grub is not installed -- not an error condition */ | ||
2802 | if (!boot) | ||
2803 | return 0; | ||
2804 | |||
2805 | fd = open("/boot/grub/stage1", O_RDONLY); | ||
2806 | if (fd < 0) | ||
2807 | /* this doesn't exist if grub hasn't been installed */ | ||
2808 | return 0; | ||
2809 | |||
2810 | if (read(fd, bootSect, 512) != 512) { | ||
2811 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2812 | "/boot/grub/stage1", strerror(errno)); | ||
2813 | niro | 914 | close(fd); |
2814 | niro | 532 | return 1; |
2815 | } | ||
2816 | close(fd); | ||
2817 | |||
2818 | return checkDeviceBootloader(boot, bootSect); | ||
2819 | } | ||
2820 | |||
2821 | niro | 914 | int checkForExtLinux(struct grubConfig * config) { |
2822 | int fd; | ||
2823 | unsigned char bootSect[512]; | ||
2824 | char * boot; | ||
2825 | char executable[] = "/boot/extlinux/extlinux"; | ||
2826 | |||
2827 | printf("entered: checkForExtLinux()\n"); | ||
2828 | |||
2829 | if (parseSysconfigGrub(NULL, &boot)) | ||
2830 | return 0; | ||
2831 | |||
2832 | /* assume grub is not installed -- not an error condition */ | ||
2833 | if (!boot) | ||
2834 | return 0; | ||
2835 | |||
2836 | fd = open(executable, O_RDONLY); | ||
2837 | if (fd < 0) | ||
2838 | /* this doesn't exist if grub hasn't been installed */ | ||
2839 | return 0; | ||
2840 | |||
2841 | if (read(fd, bootSect, 512) != 512) { | ||
2842 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2843 | executable, strerror(errno)); | ||
2844 | return 1; | ||
2845 | } | ||
2846 | close(fd); | ||
2847 | |||
2848 | return checkDeviceBootloader(boot, bootSect); | ||
2849 | } | ||
2850 | |||
2851 | niro | 532 | static char * getRootSpecifier(char * str) { |
2852 | char * idx, * rootspec = NULL; | ||
2853 | |||
2854 | if (*str == '(') { | ||
2855 | idx = rootspec = strdup(str); | ||
2856 | while(*idx && (*idx != ')') && (!isspace(*idx))) idx++; | ||
2857 | *(++idx) = '\0'; | ||
2858 | } | ||
2859 | return rootspec; | ||
2860 | } | ||
2861 | |||
2862 | niro | 914 | static char * getInitrdVal(struct grubConfig * config, |
2863 | const char * prefix, struct singleLine *tmplLine, | ||
2864 | const char * newKernelInitrd, | ||
2865 | char ** extraInitrds, int extraInitrdCount) | ||
2866 | { | ||
2867 | char *initrdVal, *end; | ||
2868 | int i; | ||
2869 | size_t totalSize; | ||
2870 | size_t prefixLen; | ||
2871 | char separatorChar; | ||
2872 | |||
2873 | prefixLen = strlen(prefix); | ||
2874 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */; | ||
2875 | |||
2876 | for (i = 0; i < extraInitrdCount; i++) { | ||
2877 | totalSize += sizeof(separatorChar); | ||
2878 | totalSize += strlen(extraInitrds[i]) - prefixLen; | ||
2879 | } | ||
2880 | |||
2881 | initrdVal = end = malloc(totalSize); | ||
2882 | |||
2883 | end = stpcpy (end, newKernelInitrd + prefixLen); | ||
2884 | |||
2885 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; | ||
2886 | for (i = 0; i < extraInitrdCount; i++) { | ||
2887 | const char *extraInitrd; | ||
2888 | int j; | ||
2889 | |||
2890 | extraInitrd = extraInitrds[i] + prefixLen; | ||
2891 | /* Don't add entries that are already there */ | ||
2892 | if (tmplLine != NULL) { | ||
2893 | for (j = 2; j < tmplLine->numElements; j++) | ||
2894 | if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0) | ||
2895 | break; | ||
2896 | |||
2897 | if (j != tmplLine->numElements) | ||
2898 | continue; | ||
2899 | } | ||
2900 | |||
2901 | *end++ = separatorChar; | ||
2902 | end = stpcpy(end, extraInitrd); | ||
2903 | } | ||
2904 | |||
2905 | return initrdVal; | ||
2906 | } | ||
2907 | |||
2908 | niro | 532 | int addNewKernel(struct grubConfig * config, struct singleEntry * template, |
2909 | const char * prefix, | ||
2910 | char * newKernelPath, char * newKernelTitle, | ||
2911 | char * newKernelArgs, char * newKernelInitrd, | ||
2912 | niro | 914 | char ** extraInitrds, int extraInitrdCount, |
2913 | niro | 532 | char * newMBKernel, char * newMBKernelArgs) { |
2914 | struct singleEntry * new; | ||
2915 | niro | 914 | struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL; |
2916 | niro | 532 | int needs; |
2917 | char * chptr; | ||
2918 | |||
2919 | if (!newKernelPath) return 0; | ||
2920 | |||
2921 | /* if the newKernelTitle is too long silently munge it into something | ||
2922 | * we can live with. truncating is first check, then we'll just mess with | ||
2923 | * it until it looks better */ | ||
2924 | if (config->cfi->maxTitleLength && | ||
2925 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { | ||
2926 | char * buf = alloca(config->cfi->maxTitleLength + 7); | ||
2927 | char * numBuf = alloca(config->cfi->maxTitleLength + 1); | ||
2928 | int i = 1; | ||
2929 | |||
2930 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle); | ||
2931 | while (findEntryByPath(config, buf, NULL, NULL)) { | ||
2932 | sprintf(numBuf, "%d", i++); | ||
2933 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); | ||
2934 | } | ||
2935 | |||
2936 | newKernelTitle = buf + 6; | ||
2937 | } | ||
2938 | |||
2939 | new = malloc(sizeof(*new)); | ||
2940 | new->skip = 0; | ||
2941 | new->multiboot = 0; | ||
2942 | new->next = config->entries; | ||
2943 | new->lines = NULL; | ||
2944 | config->entries = new; | ||
2945 | |||
2946 | /* copy/update from the template */ | ||
2947 | niro | 914 | needs = NEED_KERNEL | NEED_TITLE; |
2948 | if (newKernelInitrd) | ||
2949 | needs |= NEED_INITRD; | ||
2950 | niro | 532 | if (newMBKernel) { |
2951 | niro | 914 | needs |= NEED_MB; |
2952 | niro | 532 | new->multiboot = 1; |
2953 | } | ||
2954 | |||
2955 | if (template) { | ||
2956 | niro | 914 | for (masterLine = template->lines; |
2957 | masterLine && (tmplLine = lineDup(masterLine)); | ||
2958 | lineFree(tmplLine), masterLine = masterLine->next) | ||
2959 | { | ||
2960 | dbgPrintf("addNewKernel processing %d\n", tmplLine->type); | ||
2961 | niro | 532 | |
2962 | /* skip comments */ | ||
2963 | chptr = tmplLine->indent; | ||
2964 | while (*chptr && isspace(*chptr)) chptr++; | ||
2965 | if (*chptr == '#') continue; | ||
2966 | |||
2967 | niro | 914 | if (tmplLine->type == LT_KERNEL && |
2968 | niro | 1696 | tmplLine->numElements >= 2) { |
2969 | niro | 914 | if (!template->multiboot && (needs & NEED_MB)) { |
2970 | /* it's not a multiboot template and this is the kernel | ||
2971 | * line. Try to be intelligent about inserting the | ||
2972 | * hypervisor at the same time. | ||
2973 | */ | ||
2974 | if (config->cfi->mbHyperFirst) { | ||
2975 | /* insert the hypervisor first */ | ||
2976 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
2977 | tmplLine->indent, | ||
2978 | newMBKernel + strlen(prefix)); | ||
2979 | /* set up for adding the kernel line */ | ||
2980 | free(tmplLine->indent); | ||
2981 | tmplLine->indent = strdup(config->secondaryIndent); | ||
2982 | needs &= ~NEED_MB; | ||
2983 | } | ||
2984 | if (needs & NEED_KERNEL) { | ||
2985 | /* use addLineTmpl to preserve line elements, | ||
2986 | * otherwise we could just call addLine. Unfortunately | ||
2987 | * this means making some changes to the template | ||
2988 | * such as the indent change above and the type | ||
2989 | * change below. | ||
2990 | */ | ||
2991 | struct keywordTypes * mbm_kw = | ||
2992 | getKeywordByType(LT_MBMODULE, config->cfi); | ||
2993 | if (mbm_kw) { | ||
2994 | tmplLine->type = LT_MBMODULE; | ||
2995 | free(tmplLine->elements[0].item); | ||
2996 | tmplLine->elements[0].item = strdup(mbm_kw->key); | ||
2997 | } | ||
2998 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2999 | newKernelPath + strlen(prefix), config->cfi); | ||
3000 | needs &= ~NEED_KERNEL; | ||
3001 | } | ||
3002 | if (needs & NEED_MB) { /* !mbHyperFirst */ | ||
3003 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3004 | config->secondaryIndent, | ||
3005 | newMBKernel + strlen(prefix)); | ||
3006 | needs &= ~NEED_MB; | ||
3007 | } | ||
3008 | } else if (needs & NEED_KERNEL) { | ||
3009 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3010 | newKernelPath + strlen(prefix), config->cfi); | ||
3011 | needs &= ~NEED_KERNEL; | ||
3012 | } | ||
3013 | niro | 532 | |
3014 | niro | 914 | } else if (tmplLine->type == LT_HYPER && |
3015 | tmplLine->numElements >= 2) { | ||
3016 | if (needs & NEED_MB) { | ||
3017 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3018 | newMBKernel + strlen(prefix), config->cfi); | ||
3019 | needs &= ~NEED_MB; | ||
3020 | } | ||
3021 | niro | 532 | |
3022 | niro | 914 | } else if (tmplLine->type == LT_MBMODULE && |
3023 | tmplLine->numElements >= 2) { | ||
3024 | if (new->multiboot) { | ||
3025 | if (needs & NEED_KERNEL) { | ||
3026 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3027 | newKernelPath + | ||
3028 | strlen(prefix), config->cfi); | ||
3029 | needs &= ~NEED_KERNEL; | ||
3030 | } else if (config->cfi->mbInitRdIsModule && | ||
3031 | (needs & NEED_INITRD)) { | ||
3032 | char *initrdVal; | ||
3033 | initrdVal = getInitrdVal(config, prefix, tmplLine, | ||
3034 | newKernelInitrd, extraInitrds, | ||
3035 | extraInitrdCount); | ||
3036 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3037 | initrdVal, config->cfi); | ||
3038 | free(initrdVal); | ||
3039 | needs &= ~NEED_INITRD; | ||
3040 | } | ||
3041 | } else if (needs & NEED_KERNEL) { | ||
3042 | /* template is multi but new is not, | ||
3043 | * insert the kernel in the first module slot | ||
3044 | */ | ||
3045 | tmplLine->type = LT_KERNEL; | ||
3046 | free(tmplLine->elements[0].item); | ||
3047 | tmplLine->elements[0].item = | ||
3048 | strdup(getKeywordByType(LT_KERNEL, config->cfi)->key); | ||
3049 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3050 | newKernelPath + strlen(prefix), config->cfi); | ||
3051 | needs &= ~NEED_KERNEL; | ||
3052 | } else if (needs & NEED_INITRD) { | ||
3053 | char *initrdVal; | ||
3054 | /* template is multi but new is not, | ||
3055 | * insert the initrd in the second module slot | ||
3056 | */ | ||
3057 | tmplLine->type = LT_INITRD; | ||
3058 | free(tmplLine->elements[0].item); | ||
3059 | tmplLine->elements[0].item = | ||
3060 | strdup(getKeywordByType(LT_INITRD, config->cfi)->key); | ||
3061 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3062 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
3063 | free(initrdVal); | ||
3064 | needs &= ~NEED_INITRD; | ||
3065 | } | ||
3066 | niro | 532 | |
3067 | } else if (tmplLine->type == LT_INITRD && | ||
3068 | niro | 914 | tmplLine->numElements >= 2) { |
3069 | if (needs & NEED_INITRD && | ||
3070 | new->multiboot && !template->multiboot && | ||
3071 | config->cfi->mbInitRdIsModule) { | ||
3072 | /* make sure we don't insert the module initrd | ||
3073 | * before the module kernel... if we don't do it here, | ||
3074 | * it will be inserted following the template. | ||
3075 | */ | ||
3076 | if (!needs & NEED_KERNEL) { | ||
3077 | char *initrdVal; | ||
3078 | |||
3079 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3080 | newLine = addLine(new, config->cfi, LT_MBMODULE, | ||
3081 | config->secondaryIndent, | ||
3082 | initrdVal); | ||
3083 | free(initrdVal); | ||
3084 | needs &= ~NEED_INITRD; | ||
3085 | } | ||
3086 | } else if (needs & NEED_INITRD) { | ||
3087 | char *initrdVal; | ||
3088 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3089 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
3090 | free(initrdVal); | ||
3091 | needs &= ~NEED_INITRD; | ||
3092 | niro | 532 | } |
3093 | |||
3094 | niro | 1696 | } else if (tmplLine->type == LT_MENUENTRY && |
3095 | (needs & NEED_TITLE)) { | ||
3096 | requote(tmplLine, config->cfi); | ||
3097 | char *nkt = malloc(strlen(newKernelTitle)+3); | ||
3098 | strcpy(nkt, "'"); | ||
3099 | strcat(nkt, newKernelTitle); | ||
3100 | strcat(nkt, "'"); | ||
3101 | newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi); | ||
3102 | free(nkt); | ||
3103 | needs &= ~NEED_TITLE; | ||
3104 | niro | 532 | } else if (tmplLine->type == LT_TITLE && |
3105 | niro | 914 | (needs & NEED_TITLE)) { |
3106 | if (tmplLine->numElements >= 2) { | ||
3107 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3108 | newKernelTitle, config->cfi); | ||
3109 | needs &= ~NEED_TITLE; | ||
3110 | } else if (tmplLine->numElements == 1 && | ||
3111 | config->cfi->titleBracketed) { | ||
3112 | /* addLineTmpl doesn't handle titleBracketed */ | ||
3113 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3114 | tmplLine->indent, newKernelTitle); | ||
3115 | needs &= ~NEED_TITLE; | ||
3116 | } | ||
3117 | niro | 1696 | } else if (tmplLine->type == LT_ECHO) { |
3118 | requote(tmplLine, config->cfi); | ||
3119 | niro | 1722 | static const char *prefix = "'Loading "; |
3120 | niro | 1696 | if (tmplLine->numElements > 1 && |
3121 | niro | 1722 | strstr(tmplLine->elements[1].item, prefix) && |
3122 | masterLine->next && masterLine->next->type == LT_KERNEL) { | ||
3123 | niro | 1696 | char *newTitle = malloc(strlen(prefix) + |
3124 | strlen(newKernelTitle) + 2); | ||
3125 | niro | 532 | |
3126 | niro | 1696 | strcpy(newTitle, prefix); |
3127 | strcat(newTitle, newKernelTitle); | ||
3128 | strcat(newTitle, "'"); | ||
3129 | newLine = addLine(new, config->cfi, LT_ECHO, | ||
3130 | tmplLine->indent, newTitle); | ||
3131 | free(newTitle); | ||
3132 | } else { | ||
3133 | /* pass through other lines from the template */ | ||
3134 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, | ||
3135 | config->cfi); | ||
3136 | } | ||
3137 | niro | 914 | } else { |
3138 | /* pass through other lines from the template */ | ||
3139 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi); | ||
3140 | } | ||
3141 | niro | 532 | } |
3142 | niro | 914 | |
3143 | niro | 532 | } else { |
3144 | niro | 914 | /* don't have a template, so start the entry with the |
3145 | * appropriate starting line | ||
3146 | */ | ||
3147 | niro | 1693 | switch (config->cfi->entryStart) { |
3148 | niro | 914 | case LT_KERNEL: |
3149 | if (new->multiboot && config->cfi->mbHyperFirst) { | ||
3150 | /* fall through to LT_HYPER */ | ||
3151 | } else { | ||
3152 | newLine = addLine(new, config->cfi, LT_KERNEL, | ||
3153 | config->primaryIndent, | ||
3154 | newKernelPath + strlen(prefix)); | ||
3155 | needs &= ~NEED_KERNEL; | ||
3156 | break; | ||
3157 | } | ||
3158 | |||
3159 | case LT_HYPER: | ||
3160 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3161 | config->primaryIndent, | ||
3162 | newMBKernel + strlen(prefix)); | ||
3163 | needs &= ~NEED_MB; | ||
3164 | niro | 532 | break; |
3165 | |||
3166 | niro | 1696 | case LT_MENUENTRY: { |
3167 | char *nkt = malloc(strlen(newKernelTitle)+3); | ||
3168 | strcpy(nkt, "'"); | ||
3169 | strcat(nkt, newKernelTitle); | ||
3170 | strcat(nkt, "'"); | ||
3171 | newLine = addLine(new, config->cfi, LT_MENUENTRY, | ||
3172 | config->primaryIndent, nkt); | ||
3173 | free(nkt); | ||
3174 | needs &= ~NEED_TITLE; | ||
3175 | needs |= NEED_END; | ||
3176 | break; | ||
3177 | } | ||
3178 | niro | 914 | case LT_TITLE: |
3179 | if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above) | ||
3180 | char * templabel; | ||
3181 | int x = 0, y = 0; | ||
3182 | |||
3183 | templabel = strdup(newKernelTitle); | ||
3184 | while( templabel[x]){ | ||
3185 | if( templabel[x] == ' ' ){ | ||
3186 | y = x; | ||
3187 | while( templabel[y] ){ | ||
3188 | templabel[y] = templabel[y+1]; | ||
3189 | y++; | ||
3190 | } | ||
3191 | } | ||
3192 | x++; | ||
3193 | } | ||
3194 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3195 | config->primaryIndent, templabel); | ||
3196 | free(templabel); | ||
3197 | }else{ | ||
3198 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3199 | config->primaryIndent, newKernelTitle); | ||
3200 | } | ||
3201 | needs &= ~NEED_TITLE; | ||
3202 | break; | ||
3203 | |||
3204 | default: | ||
3205 | abort(); | ||
3206 | niro | 532 | } |
3207 | } | ||
3208 | |||
3209 | niro | 914 | /* add the remainder of the lines, i.e. those that either |
3210 | * weren't present in the template, or in the case of no template, | ||
3211 | niro | 1693 | * all the lines following the entryStart. |
3212 | niro | 914 | */ |
3213 | if (needs & NEED_TITLE) { | ||
3214 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3215 | config->secondaryIndent, | ||
3216 | newKernelTitle); | ||
3217 | needs &= ~NEED_TITLE; | ||
3218 | niro | 532 | } |
3219 | niro | 914 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
3220 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3221 | config->secondaryIndent, | ||
3222 | newMBKernel + strlen(prefix)); | ||
3223 | needs &= ~NEED_MB; | ||
3224 | } | ||
3225 | if (needs & NEED_KERNEL) { | ||
3226 | newLine = addLine(new, config->cfi, | ||
3227 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
3228 | config->cfi)) ? | ||
3229 | LT_MBMODULE : LT_KERNEL, | ||
3230 | config->secondaryIndent, | ||
3231 | newKernelPath + strlen(prefix)); | ||
3232 | needs &= ~NEED_KERNEL; | ||
3233 | } | ||
3234 | if (needs & NEED_MB) { | ||
3235 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3236 | config->secondaryIndent, | ||
3237 | newMBKernel + strlen(prefix)); | ||
3238 | needs &= ~NEED_MB; | ||
3239 | } | ||
3240 | if (needs & NEED_INITRD) { | ||
3241 | char *initrdVal; | ||
3242 | initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3243 | newLine = addLine(new, config->cfi, | ||
3244 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
3245 | config->cfi)) ? | ||
3246 | LT_MBMODULE : LT_INITRD, | ||
3247 | config->secondaryIndent, | ||
3248 | initrdVal); | ||
3249 | free(initrdVal); | ||
3250 | needs &= ~NEED_INITRD; | ||
3251 | } | ||
3252 | niro | 1696 | if (needs & NEED_END) { |
3253 | newLine = addLine(new, config->cfi, LT_ENTRY_END, | ||
3254 | config->secondaryIndent, NULL); | ||
3255 | needs &= ~NEED_END; | ||
3256 | } | ||
3257 | niro | 532 | |
3258 | niro | 914 | if (needs) { |
3259 | printf(_("grubby: needs=%d, aborting\n"), needs); | ||
3260 | abort(); | ||
3261 | } | ||
3262 | |||
3263 | niro | 532 | if (updateImage(config, "0", prefix, newKernelArgs, NULL, |
3264 | newMBKernelArgs, NULL)) return 1; | ||
3265 | |||
3266 | return 0; | ||
3267 | } | ||
3268 | |||
3269 | niro | 914 | static void traceback(int signum) |
3270 | { | ||
3271 | void *array[40]; | ||
3272 | size_t size; | ||
3273 | |||
3274 | signal(SIGSEGV, SIG_DFL); | ||
3275 | memset(array, '\0', sizeof (array)); | ||
3276 | size = backtrace(array, 40); | ||
3277 | |||
3278 | fprintf(stderr, "grubby recieved SIGSEGV! Backtrace (%ld):\n", | ||
3279 | (unsigned long)size); | ||
3280 | backtrace_symbols_fd(array, size, STDERR_FILENO); | ||
3281 | exit(1); | ||
3282 | } | ||
3283 | |||
3284 | niro | 532 | int main(int argc, const char ** argv) { |
3285 | poptContext optCon; | ||
3286 | niro | 1696 | const char * grubConfig = NULL; |
3287 | niro | 532 | char * outputFile = NULL; |
3288 | int arg = 0; | ||
3289 | int flags = 0; | ||
3290 | int badImageOkay = 0; | ||
3291 | niro | 1696 | int configureGrub2 = 0; |
3292 | niro | 532 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
3293 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; | ||
3294 | niro | 914 | int configureExtLinux = 0; |
3295 | niro | 532 | int bootloaderProbe = 0; |
3296 | niro | 914 | int extraInitrdCount = 0; |
3297 | niro | 532 | char * updateKernelPath = NULL; |
3298 | char * newKernelPath = NULL; | ||
3299 | char * removeKernelPath = NULL; | ||
3300 | char * newKernelArgs = NULL; | ||
3301 | char * newKernelInitrd = NULL; | ||
3302 | char * newKernelTitle = NULL; | ||
3303 | char * newKernelVersion = NULL; | ||
3304 | char * newMBKernel = NULL; | ||
3305 | char * newMBKernelArgs = NULL; | ||
3306 | char * removeMBKernelArgs = NULL; | ||
3307 | char * removeMBKernel = NULL; | ||
3308 | char * bootPrefix = NULL; | ||
3309 | char * defaultKernel = NULL; | ||
3310 | char * removeArgs = NULL; | ||
3311 | char * kernelInfo = NULL; | ||
3312 | niro | 914 | char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
3313 | niro | 532 | const char * chptr = NULL; |
3314 | struct configFileInfo * cfi = NULL; | ||
3315 | struct grubConfig * config; | ||
3316 | struct singleEntry * template = NULL; | ||
3317 | int copyDefault = 0, makeDefault = 0; | ||
3318 | int displayDefault = 0; | ||
3319 | niro | 1720 | int displayDefaultIndex = 0; |
3320 | niro | 1721 | int displayDefaultTitle = 0; |
3321 | niro | 532 | struct poptOption options[] = { |
3322 | { "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, | ||
3323 | _("add an entry for the specified kernel"), _("kernel-path") }, | ||
3324 | { "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, | ||
3325 | _("add an entry for the specified multiboot kernel"), NULL }, | ||
3326 | { "args", 0, POPT_ARG_STRING, &newKernelArgs, 0, | ||
3327 | _("default arguments for the new kernel or new arguments for " | ||
3328 | "kernel being updated"), _("args") }, | ||
3329 | { "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, | ||
3330 | _("default arguments for the new multiboot kernel or " | ||
3331 | "new arguments for multiboot kernel being updated"), NULL }, | ||
3332 | { "bad-image-okay", 0, 0, &badImageOkay, 0, | ||
3333 | _("don't sanity check images in boot entries (for testing only)"), | ||
3334 | NULL }, | ||
3335 | { "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, | ||
3336 | _("filestystem which contains /boot directory (for testing only)"), | ||
3337 | _("bootfs") }, | ||
3338 | #if defined(__i386__) || defined(__x86_64__) | ||
3339 | { "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, | ||
3340 | _("check if lilo is installed on lilo.conf boot sector") }, | ||
3341 | #endif | ||
3342 | { "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, | ||
3343 | _("path to grub config file to update (\"-\" for stdin)"), | ||
3344 | _("path") }, | ||
3345 | { "copy-default", 0, 0, ©Default, 0, | ||
3346 | _("use the default boot entry as a template for the new entry " | ||
3347 | "being added; if the default is not a linux image, or if " | ||
3348 | "the kernel referenced by the default image does not exist, " | ||
3349 | "the first linux entry whose kernel does exist is used as the " | ||
3350 | "template"), NULL }, | ||
3351 | niro | 1736 | { "debug", 0, 0, &debug, 0, |
3352 | _("print debugging information for failures") }, | ||
3353 | niro | 532 | { "default-kernel", 0, 0, &displayDefault, 0, |
3354 | _("display the path of the default kernel") }, | ||
3355 | niro | 1720 | { "default-index", 0, 0, &displayDefaultIndex, 0, |
3356 | _("display the index of the default kernel") }, | ||
3357 | niro | 1721 | { "default-title", 0, 0, &displayDefaultTitle, 0, |
3358 | _("display the title of the default kernel") }, | ||
3359 | niro | 532 | { "elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
3360 | _("configure elilo bootloader") }, | ||
3361 | niro | 914 | { "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
3362 | _("configure extlinux bootloader (from syslinux)") }, | ||
3363 | niro | 532 | { "grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
3364 | _("configure grub bootloader") }, | ||
3365 | niro | 1696 | { "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
3366 | _("configure grub2 bootloader") }, | ||
3367 | niro | 532 | { "info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
3368 | _("display boot information for specified kernel"), | ||
3369 | _("kernel-path") }, | ||
3370 | { "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, | ||
3371 | _("initrd image for the new kernel"), _("initrd-path") }, | ||
3372 | niro | 914 | { "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
3373 | _("auxilliary initrd image for things other than the new kernel"), _("initrd-path") }, | ||
3374 | niro | 532 | { "lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
3375 | _("configure lilo bootloader") }, | ||
3376 | { "make-default", 0, 0, &makeDefault, 0, | ||
3377 | _("make the newly added entry the default boot entry"), NULL }, | ||
3378 | { "output-file", 'o', POPT_ARG_STRING, &outputFile, 0, | ||
3379 | _("path to output updated config file (\"-\" for stdout)"), | ||
3380 | _("path") }, | ||
3381 | { "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, | ||
3382 | _("remove kernel arguments"), NULL }, | ||
3383 | { "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, | ||
3384 | _("remove multiboot kernel arguments"), NULL }, | ||
3385 | { "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, | ||
3386 | _("remove all entries for the specified kernel"), | ||
3387 | _("kernel-path") }, | ||
3388 | { "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, | ||
3389 | _("remove all entries for the specified multiboot kernel"), NULL }, | ||
3390 | { "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, | ||
3391 | _("make the first entry referencing the specified kernel " | ||
3392 | "the default"), _("kernel-path") }, | ||
3393 | { "silo", 0, POPT_ARG_NONE, &configureSilo, 0, | ||
3394 | _("configure silo bootloader") }, | ||
3395 | { "title", 0, POPT_ARG_STRING, &newKernelTitle, 0, | ||
3396 | _("title to use for the new kernel entry"), _("entry-title") }, | ||
3397 | { "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, | ||
3398 | _("updated information for the specified kernel"), | ||
3399 | _("kernel-path") }, | ||
3400 | { "version", 'v', 0, NULL, 'v', | ||
3401 | _("print the version of this program and exit"), NULL }, | ||
3402 | { "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, | ||
3403 | _("configure yaboot bootloader") }, | ||
3404 | { "zipl", 0, POPT_ARG_NONE, &configureZipl, 0, | ||
3405 | _("configure zipl bootloader") }, | ||
3406 | POPT_AUTOHELP | ||
3407 | { 0, 0, 0, 0, 0 } | ||
3408 | }; | ||
3409 | |||
3410 | niro | 914 | useextlinuxmenu=0; |
3411 | |||
3412 | signal(SIGSEGV, traceback); | ||
3413 | |||
3414 | niro | 532 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
3415 | poptReadDefaultConfig(optCon, 1); | ||
3416 | |||
3417 | while ((arg = poptGetNextOpt(optCon)) >= 0) { | ||
3418 | switch (arg) { | ||
3419 | case 'v': | ||
3420 | printf("grubby version %s\n", VERSION); | ||
3421 | exit(0); | ||
3422 | break; | ||
3423 | niro | 914 | case 'i': |
3424 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { | ||
3425 | extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon)); | ||
3426 | } else { | ||
3427 | fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount); | ||
3428 | return 1; | ||
3429 | } | ||
3430 | break; | ||
3431 | niro | 532 | } |
3432 | } | ||
3433 | |||
3434 | if (arg < -1) { | ||
3435 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), | ||
3436 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), | ||
3437 | poptStrerror(arg)); | ||
3438 | return 1; | ||
3439 | } | ||
3440 | |||
3441 | if ((chptr = poptGetArg(optCon))) { | ||
3442 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); | ||
3443 | return 1; | ||
3444 | } | ||
3445 | |||
3446 | niro | 1696 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
3447 | niro | 914 | configureYaboot + configureSilo + configureZipl + |
3448 | configureExtLinux ) > 1) { | ||
3449 | niro | 532 | fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n")); |
3450 | return 1; | ||
3451 | } else if (bootloaderProbe && grubConfig) { | ||
3452 | fprintf(stderr, | ||
3453 | _("grubby: cannot specify config file with --bootloader-probe\n")); | ||
3454 | return 1; | ||
3455 | niro | 1696 | } else if (configureGrub2) { |
3456 | cfi = &grub2ConfigType; | ||
3457 | niro | 532 | } else if (configureLilo) { |
3458 | cfi = &liloConfigType; | ||
3459 | } else if (configureGrub) { | ||
3460 | cfi = &grubConfigType; | ||
3461 | } else if (configureELilo) { | ||
3462 | cfi = &eliloConfigType; | ||
3463 | } else if (configureYaboot) { | ||
3464 | cfi = &yabootConfigType; | ||
3465 | } else if (configureSilo) { | ||
3466 | cfi = &siloConfigType; | ||
3467 | } else if (configureZipl) { | ||
3468 | cfi = &ziplConfigType; | ||
3469 | niro | 914 | } else if (configureExtLinux) { |
3470 | cfi = &extlinuxConfigType; | ||
3471 | useextlinuxmenu=1; | ||
3472 | niro | 532 | } |
3473 | |||
3474 | if (!cfi) { | ||
3475 | #ifdef __ia64__ | ||
3476 | cfi = &eliloConfigType; | ||
3477 | #elif __powerpc__ | ||
3478 | cfi = &yabootConfigType; | ||
3479 | #elif __sparc__ | ||
3480 | cfi = &siloConfigType; | ||
3481 | #elif __s390__ | ||
3482 | cfi = &ziplConfigType; | ||
3483 | #elif __s390x__ | ||
3484 | cfi = &ziplConfigtype; | ||
3485 | #else | ||
3486 | niro | 1696 | if (grub2FindConfig(&grub2ConfigType)) |
3487 | cfi = &grub2ConfigType; | ||
3488 | else | ||
3489 | cfi = &grubConfigType; | ||
3490 | niro | 532 | #endif |
3491 | } | ||
3492 | |||
3493 | niro | 1696 | if (!grubConfig) { |
3494 | if (cfi->findConfig) | ||
3495 | grubConfig = cfi->findConfig(cfi); | ||
3496 | if (!grubConfig) | ||
3497 | grubConfig = cfi->defaultConfig; | ||
3498 | } | ||
3499 | niro | 532 | |
3500 | if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion || | ||
3501 | newKernelPath || removeKernelPath || makeDefault || | ||
3502 | niro | 1721 | defaultKernel || displayDefaultIndex || displayDefaultTitle)) { |
3503 | niro | 532 | fprintf(stderr, _("grubby: --bootloader-probe may not be used with " |
3504 | "specified option")); | ||
3505 | return 1; | ||
3506 | } | ||
3507 | |||
3508 | if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath || | ||
3509 | removeKernelPath)) { | ||
3510 | fprintf(stderr, _("grubby: --default-kernel and --info may not " | ||
3511 | "be used when adding or removing kernels\n")); | ||
3512 | return 1; | ||
3513 | } | ||
3514 | |||
3515 | if (newKernelPath && !newKernelTitle) { | ||
3516 | fprintf(stderr, _("grubby: kernel title must be specified\n")); | ||
3517 | return 1; | ||
3518 | niro | 1156 | } else if (!newKernelPath && (newKernelTitle || copyDefault || |
3519 | (newKernelInitrd && !updateKernelPath)|| | ||
3520 | niro | 914 | makeDefault || extraInitrdCount > 0)) { |
3521 | niro | 532 | fprintf(stderr, _("grubby: kernel path expected\n")); |
3522 | return 1; | ||
3523 | } | ||
3524 | |||
3525 | if (newKernelPath && updateKernelPath) { | ||
3526 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" | ||
3527 | "not be used together")); | ||
3528 | return 1; | ||
3529 | } | ||
3530 | |||
3531 | if (makeDefault && defaultKernel) { | ||
3532 | fprintf(stderr, _("grubby: --make-default and --default-kernel " | ||
3533 | "may not be used together\n")); | ||
3534 | return 1; | ||
3535 | } else if (defaultKernel && removeKernelPath && | ||
3536 | !strcmp(defaultKernel, removeKernelPath)) { | ||
3537 | fprintf(stderr, _("grubby: cannot make removed kernel the default\n")); | ||
3538 | return 1; | ||
3539 | } else if (defaultKernel && newKernelPath && | ||
3540 | !strcmp(defaultKernel, newKernelPath)) { | ||
3541 | makeDefault = 1; | ||
3542 | defaultKernel = NULL; | ||
3543 | } | ||
3544 | |||
3545 | niro | 1717 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
3546 | niro | 532 | fprintf(stderr, _("grubby: output file must be specified if stdin " |
3547 | "is used\n")); | ||
3548 | return 1; | ||
3549 | } | ||
3550 | |||
3551 | if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel | ||
3552 | && !kernelInfo && !bootloaderProbe && !updateKernelPath | ||
3553 | niro | 1721 | && !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle) { |
3554 | niro | 532 | fprintf(stderr, _("grubby: no action specified\n")); |
3555 | return 1; | ||
3556 | } | ||
3557 | |||
3558 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; | ||
3559 | |||
3560 | if (cfi->needsBootPrefix) { | ||
3561 | if (!bootPrefix) { | ||
3562 | bootPrefix = findBootPrefix(); | ||
3563 | if (!bootPrefix) return 1; | ||
3564 | } else { | ||
3565 | /* this shouldn't end with a / */ | ||
3566 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') | ||
3567 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; | ||
3568 | } | ||
3569 | } else { | ||
3570 | bootPrefix = ""; | ||
3571 | } | ||
3572 | |||
3573 | niro | 914 | if (!cfi->mbAllowExtraInitRds && |
3574 | extraInitrdCount > 0) { | ||
3575 | fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig); | ||
3576 | return 1; | ||
3577 | } | ||
3578 | |||
3579 | niro | 532 | if (bootloaderProbe) { |
3580 | niro | 1696 | int lrc = 0, grc = 0, gr2c = 0, erc = 0; |
3581 | niro | 532 | struct grubConfig * lconfig, * gconfig; |
3582 | |||
3583 | niro | 1696 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
3584 | if (grub2config) { | ||
3585 | gconfig = readConfig(grub2config, &grub2ConfigType); | ||
3586 | if (!gconfig) | ||
3587 | gr2c = 1; | ||
3588 | else | ||
3589 | gr2c = checkForGrub2(gconfig); | ||
3590 | } | ||
3591 | |||
3592 | niro | 1715 | const char *grubconfig = grubFindConfig(&grubConfigType); |
3593 | if (!access(grubconfig, F_OK)) { | ||
3594 | gconfig = readConfig(grubconfig, &grubConfigType); | ||
3595 | niro | 532 | if (!gconfig) |
3596 | grc = 1; | ||
3597 | else | ||
3598 | grc = checkForGrub(gconfig); | ||
3599 | } | ||
3600 | |||
3601 | if (!access(liloConfigType.defaultConfig, F_OK)) { | ||
3602 | lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType); | ||
3603 | if (!lconfig) | ||
3604 | lrc = 1; | ||
3605 | else | ||
3606 | lrc = checkForLilo(lconfig); | ||
3607 | } | ||
3608 | |||
3609 | niro | 914 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
3610 | lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType); | ||
3611 | if (!lconfig) | ||
3612 | erc = 1; | ||
3613 | else | ||
3614 | erc = checkForExtLinux(lconfig); | ||
3615 | } | ||
3616 | |||
3617 | niro | 1696 | if (lrc == 1 || grc == 1 || gr2c == 1) return 1; |
3618 | niro | 532 | |
3619 | if (lrc == 2) printf("lilo\n"); | ||
3620 | niro | 1696 | if (gr2c == 2) printf("grub2\n"); |
3621 | niro | 532 | if (grc == 2) printf("grub\n"); |
3622 | niro | 914 | if (erc == 2) printf("extlinux\n"); |
3623 | niro | 532 | |
3624 | return 0; | ||
3625 | } | ||
3626 | |||
3627 | config = readConfig(grubConfig, cfi); | ||
3628 | if (!config) return 1; | ||
3629 | |||
3630 | if (displayDefault) { | ||
3631 | struct singleLine * line; | ||
3632 | struct singleEntry * entry; | ||
3633 | char * rootspec; | ||
3634 | |||
3635 | if (config->defaultImage == -1) return 0; | ||
3636 | entry = findEntryByIndex(config, config->defaultImage); | ||
3637 | if (!entry) return 0; | ||
3638 | if (!suitableImage(entry, bootPrefix, 0, flags)) return 0; | ||
3639 | |||
3640 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
3641 | niro | 532 | if (!line) return 0; |
3642 | |||
3643 | rootspec = getRootSpecifier(line->elements[1].item); | ||
3644 | printf("%s%s\n", bootPrefix, line->elements[1].item + | ||
3645 | ((rootspec != NULL) ? strlen(rootspec) : 0)); | ||
3646 | |||
3647 | return 0; | ||
3648 | niro | 1720 | |
3649 | niro | 1721 | } else if (displayDefaultTitle) { |
3650 | struct singleLine * line; | ||
3651 | struct singleEntry * entry; | ||
3652 | |||
3653 | if (config->defaultImage == -1) return 0; | ||
3654 | entry = findEntryByIndex(config, config->defaultImage); | ||
3655 | if (!entry) return 0; | ||
3656 | |||
3657 | if (!configureGrub2) { | ||
3658 | line = getLineByType(LT_TITLE, entry->lines); | ||
3659 | if (!line) return 0; | ||
3660 | printf("%s\n", line->elements[1].item); | ||
3661 | |||
3662 | } else { | ||
3663 | niro | 1746 | char * title; |
3664 | niro | 1721 | |
3665 | dbgPrintf("This is GRUB2, default title is embeded in menuentry\n"); | ||
3666 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
3667 | if (!line) return 0; | ||
3668 | niro | 1746 | title = grub2ExtractTitle(line); |
3669 | if (title) | ||
3670 | printf("%s\n", title); | ||
3671 | niro | 1721 | } |
3672 | return 0; | ||
3673 | |||
3674 | niro | 1720 | } else if (displayDefaultIndex) { |
3675 | if (config->defaultImage == -1) return 0; | ||
3676 | printf("%i\n", config->defaultImage); | ||
3677 | |||
3678 | niro | 532 | } else if (kernelInfo) |
3679 | return displayInfo(config, kernelInfo, bootPrefix); | ||
3680 | |||
3681 | if (copyDefault) { | ||
3682 | template = findTemplate(config, bootPrefix, NULL, 0, flags); | ||
3683 | if (!template) return 1; | ||
3684 | } | ||
3685 | |||
3686 | markRemovedImage(config, removeKernelPath, bootPrefix); | ||
3687 | markRemovedImage(config, removeMBKernel, bootPrefix); | ||
3688 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault, | ||
3689 | bootPrefix, flags); | ||
3690 | setFallbackImage(config, newKernelPath != NULL); | ||
3691 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, | ||
3692 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1; | ||
3693 | niro | 1156 | if (updateKernelPath && newKernelInitrd) { |
3694 | if (updateInitrd(config, updateKernelPath, bootPrefix, | ||
3695 | newKernelInitrd)) return 1; | ||
3696 | } | ||
3697 | niro | 532 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
3698 | newKernelTitle, newKernelArgs, newKernelInitrd, | ||
3699 | niro | 914 | extraInitrds, extraInitrdCount, |
3700 | niro | 532 | newMBKernel, newMBKernelArgs)) return 1; |
3701 | |||
3702 | |||
3703 | if (numEntries(config) == 0) { | ||
3704 | fprintf(stderr, _("grubby: doing this would leave no kernel entries. " | ||
3705 | "Not writing out new config.\n")); | ||
3706 | return 1; | ||
3707 | } | ||
3708 | |||
3709 | if (!outputFile) | ||
3710 | niro | 1696 | outputFile = (char *)grubConfig; |
3711 | niro | 532 | |
3712 | return writeConfig(config, outputFile, bootPrefix); | ||
3713 | } |