Annotation of /trunk/mkinitrd-magellan/grubby/grubby.c
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Revision 926 -
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Wed Oct 28 13:29:38 2009 UTC (14 years, 11 months ago) by niro
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File size: 89031 byte(s)
Wed Oct 28 13:29:38 2009 UTC (14 years, 11 months ago) by niro
File MIME type: text/plain
File size: 89031 byte(s)
-read grub options from /etc/conf.d/grub
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 | 914 | #define DEBUG 0 |
40 | niro | 532 | |
41 | niro | 914 | #if DEBUG |
42 | #define dbgPrintf(format, args...) fprintf(stderr, format , ## args) | ||
43 | #else | ||
44 | #define dbgPrintf(format, args...) | ||
45 | #endif | ||
46 | |||
47 | niro | 532 | #define _(A) (A) |
48 | |||
49 | niro | 914 | #define MAX_EXTRA_INITRDS 16 /* code segment checked by --bootloader-probe */ |
50 | niro | 532 | #define CODE_SEG_SIZE 128 /* code segment checked by --bootloader-probe */ |
51 | |||
52 | /* comments get lumped in with indention */ | ||
53 | struct lineElement { | ||
54 | char * item; | ||
55 | char * indent; | ||
56 | }; | ||
57 | |||
58 | niro | 914 | enum lineType_e { |
59 | LT_WHITESPACE = 1 << 0, | ||
60 | LT_TITLE = 1 << 1, | ||
61 | LT_KERNEL = 1 << 2, | ||
62 | LT_INITRD = 1 << 3, | ||
63 | LT_HYPER = 1 << 4, | ||
64 | LT_DEFAULT = 1 << 5, | ||
65 | LT_MBMODULE = 1 << 6, | ||
66 | LT_ROOT = 1 << 7, | ||
67 | LT_FALLBACK = 1 << 8, | ||
68 | LT_KERNELARGS = 1 << 9, | ||
69 | LT_BOOT = 1 << 10, | ||
70 | LT_BOOTROOT = 1 << 11, | ||
71 | LT_LBA = 1 << 12, | ||
72 | LT_OTHER = 1 << 13, | ||
73 | LT_GENERIC = 1 << 14, | ||
74 | LT_UNKNOWN = 1 << 15, | ||
75 | }; | ||
76 | niro | 532 | |
77 | struct singleLine { | ||
78 | char * indent; | ||
79 | int numElements; | ||
80 | struct lineElement * elements; | ||
81 | struct singleLine * next; | ||
82 | enum lineType_e type; | ||
83 | }; | ||
84 | |||
85 | struct singleEntry { | ||
86 | struct singleLine * lines; | ||
87 | int skip; | ||
88 | int multiboot; | ||
89 | struct singleEntry * next; | ||
90 | }; | ||
91 | |||
92 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) | ||
93 | |||
94 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ | ||
95 | |||
96 | niro | 914 | /* These defines are (only) used in addNewKernel() */ |
97 | #define NEED_KERNEL (1 << 0) | ||
98 | #define NEED_INITRD (1 << 1) | ||
99 | #define NEED_TITLE (1 << 2) | ||
100 | #define NEED_ARGS (1 << 3) | ||
101 | #define NEED_MB (1 << 4) | ||
102 | niro | 532 | |
103 | #define MAIN_DEFAULT (1 << 0) | ||
104 | #define DEFAULT_SAVED -2 | ||
105 | |||
106 | struct keywordTypes { | ||
107 | char * key; | ||
108 | enum lineType_e type; | ||
109 | char nextChar; | ||
110 | niro | 914 | char separatorChar; |
111 | }; | ||
112 | niro | 532 | |
113 | struct configFileInfo { | ||
114 | char * defaultConfig; | ||
115 | struct keywordTypes * keywords; | ||
116 | int defaultIsIndex; | ||
117 | int defaultSupportSaved; | ||
118 | enum lineType_e entrySeparator; | ||
119 | int needsBootPrefix; | ||
120 | int argsInQuotes; | ||
121 | int maxTitleLength; | ||
122 | int titleBracketed; | ||
123 | niro | 914 | int mbHyperFirst; |
124 | int mbInitRdIsModule; | ||
125 | int mbConcatArgs; | ||
126 | int mbAllowExtraInitRds; | ||
127 | niro | 532 | }; |
128 | |||
129 | struct keywordTypes grubKeywords[] = { | ||
130 | { "title", LT_TITLE, ' ' }, | ||
131 | { "root", LT_BOOTROOT, ' ' }, | ||
132 | { "default", LT_DEFAULT, ' ' }, | ||
133 | { "fallback", LT_FALLBACK, ' ' }, | ||
134 | { "kernel", LT_KERNEL, ' ' }, | ||
135 | niro | 914 | { "initrd", LT_INITRD, ' ', ' ' }, |
136 | niro | 532 | { "module", LT_MBMODULE, ' ' }, |
137 | niro | 914 | { "kernel", LT_HYPER, ' ' }, |
138 | niro | 532 | { NULL, 0, 0 }, |
139 | }; | ||
140 | |||
141 | struct configFileInfo grubConfigType = { | ||
142 | niro | 920 | "/boot/grub/grub.conf", /* defaultConfig */ |
143 | niro | 532 | grubKeywords, /* keywords */ |
144 | 1, /* defaultIsIndex */ | ||
145 | 1, /* defaultSupportSaved */ | ||
146 | LT_TITLE, /* entrySeparator */ | ||
147 | 1, /* needsBootPrefix */ | ||
148 | 0, /* argsInQuotes */ | ||
149 | 0, /* maxTitleLength */ | ||
150 | 0, /* titleBracketed */ | ||
151 | niro | 914 | 1, /* mbHyperFirst */ |
152 | 1, /* mbInitRdIsModule */ | ||
153 | 0, /* mbConcatArgs */ | ||
154 | 1, /* mbAllowExtraInitRds */ | ||
155 | niro | 532 | }; |
156 | |||
157 | struct keywordTypes yabootKeywords[] = { | ||
158 | { "label", LT_TITLE, '=' }, | ||
159 | { "root", LT_ROOT, '=' }, | ||
160 | { "default", LT_DEFAULT, '=' }, | ||
161 | { "image", LT_KERNEL, '=' }, | ||
162 | { "bsd", LT_GENERIC, '=' }, | ||
163 | { "macos", LT_GENERIC, '=' }, | ||
164 | { "macosx", LT_GENERIC, '=' }, | ||
165 | { "magicboot", LT_GENERIC, '=' }, | ||
166 | { "darwin", LT_GENERIC, '=' }, | ||
167 | { "timeout", LT_GENERIC, '=' }, | ||
168 | { "install", LT_GENERIC, '=' }, | ||
169 | { "fstype", LT_GENERIC, '=' }, | ||
170 | { "hfstype", LT_GENERIC, '=' }, | ||
171 | { "delay", LT_GENERIC, '=' }, | ||
172 | { "defaultos", LT_GENERIC, '=' }, | ||
173 | { "init-message", LT_GENERIC, '=' }, | ||
174 | { "enablecdboot", LT_GENERIC, ' ' }, | ||
175 | { "enableofboot", LT_GENERIC, ' ' }, | ||
176 | { "enablenetboot", LT_GENERIC, ' ' }, | ||
177 | { "nonvram", LT_GENERIC, ' ' }, | ||
178 | { "hide", LT_GENERIC, ' ' }, | ||
179 | { "protect", LT_GENERIC, ' ' }, | ||
180 | { "nobless", LT_GENERIC, ' ' }, | ||
181 | { "nonvram", LT_GENERIC, ' ' }, | ||
182 | { "brokenosx", LT_GENERIC, ' ' }, | ||
183 | { "usemount", LT_GENERIC, ' ' }, | ||
184 | { "mntpoint", LT_GENERIC, '=' }, | ||
185 | { "partition", LT_GENERIC, '=' }, | ||
186 | { "device", LT_GENERIC, '=' }, | ||
187 | { "fstype", LT_GENERIC, '=' }, | ||
188 | niro | 914 | { "initrd", LT_INITRD, '=', ';' }, |
189 | niro | 532 | { "append", LT_KERNELARGS, '=' }, |
190 | { "boot", LT_BOOT, '=' }, | ||
191 | { "lba", LT_LBA, ' ' }, | ||
192 | { NULL, 0, 0 }, | ||
193 | }; | ||
194 | |||
195 | struct keywordTypes liloKeywords[] = { | ||
196 | { "label", LT_TITLE, '=' }, | ||
197 | { "root", LT_ROOT, '=' }, | ||
198 | { "default", LT_DEFAULT, '=' }, | ||
199 | { "image", LT_KERNEL, '=' }, | ||
200 | { "other", LT_OTHER, '=' }, | ||
201 | { "initrd", LT_INITRD, '=' }, | ||
202 | { "append", LT_KERNELARGS, '=' }, | ||
203 | { "boot", LT_BOOT, '=' }, | ||
204 | { "lba", LT_LBA, ' ' }, | ||
205 | { NULL, 0, 0 }, | ||
206 | }; | ||
207 | |||
208 | niro | 914 | struct keywordTypes eliloKeywords[] = { |
209 | { "label", LT_TITLE, '=' }, | ||
210 | { "root", LT_ROOT, '=' }, | ||
211 | { "default", LT_DEFAULT, '=' }, | ||
212 | { "image", LT_KERNEL, '=' }, | ||
213 | { "initrd", LT_INITRD, '=' }, | ||
214 | { "append", LT_KERNELARGS, '=' }, | ||
215 | { "vmm", LT_HYPER, '=' }, | ||
216 | { NULL, 0, 0 }, | ||
217 | }; | ||
218 | |||
219 | niro | 532 | struct keywordTypes siloKeywords[] = { |
220 | { "label", LT_TITLE, '=' }, | ||
221 | { "root", LT_ROOT, '=' }, | ||
222 | { "default", LT_DEFAULT, '=' }, | ||
223 | { "image", LT_KERNEL, '=' }, | ||
224 | { "other", LT_OTHER, '=' }, | ||
225 | { "initrd", LT_INITRD, '=' }, | ||
226 | { "append", LT_KERNELARGS, '=' }, | ||
227 | { "boot", LT_BOOT, '=' }, | ||
228 | { NULL, 0, 0 }, | ||
229 | }; | ||
230 | |||
231 | struct keywordTypes ziplKeywords[] = { | ||
232 | { "target", LT_BOOTROOT, '=' }, | ||
233 | { "image", LT_KERNEL, '=' }, | ||
234 | { "ramdisk", LT_INITRD, '=' }, | ||
235 | { "parameters", LT_KERNELARGS, '=' }, | ||
236 | { "default", LT_DEFAULT, '=' }, | ||
237 | { NULL, 0, 0 }, | ||
238 | }; | ||
239 | |||
240 | niro | 914 | struct keywordTypes extlinuxKeywords[] = { |
241 | { "label", LT_TITLE, ' ' }, | ||
242 | { "root", LT_ROOT, ' ' }, | ||
243 | { "default", LT_DEFAULT, ' ' }, | ||
244 | { "kernel", LT_KERNEL, ' ' }, | ||
245 | { "initrd", LT_INITRD, ' ', ',' }, | ||
246 | { "append", LT_KERNELARGS, ' ' }, | ||
247 | { "prompt", LT_UNKNOWN, ' ' }, | ||
248 | { NULL, 0, 0 }, | ||
249 | }; | ||
250 | int useextlinuxmenu; | ||
251 | niro | 532 | struct configFileInfo eliloConfigType = { |
252 | "/boot/efi/EFI/redhat/elilo.conf", /* defaultConfig */ | ||
253 | niro | 914 | eliloKeywords, /* keywords */ |
254 | niro | 532 | 0, /* defaultIsIndex */ |
255 | 0, /* defaultSupportSaved */ | ||
256 | LT_KERNEL, /* entrySeparator */ | ||
257 | 1, /* needsBootPrefix */ | ||
258 | 1, /* argsInQuotes */ | ||
259 | 0, /* maxTitleLength */ | ||
260 | 0, /* titleBracketed */ | ||
261 | niro | 914 | 0, /* mbHyperFirst */ |
262 | 0, /* mbInitRdIsModule */ | ||
263 | 1, /* mbConcatArgs */ | ||
264 | 0, /* mbAllowExtraInitRds */ | ||
265 | niro | 532 | }; |
266 | |||
267 | struct configFileInfo liloConfigType = { | ||
268 | "/etc/lilo.conf", /* defaultConfig */ | ||
269 | liloKeywords, /* keywords */ | ||
270 | 0, /* defaultIsIndex */ | ||
271 | 0, /* defaultSupportSaved */ | ||
272 | LT_KERNEL, /* entrySeparator */ | ||
273 | 0, /* needsBootPrefix */ | ||
274 | 1, /* argsInQuotes */ | ||
275 | 15, /* maxTitleLength */ | ||
276 | 0, /* titleBracketed */ | ||
277 | niro | 914 | 0, /* mbHyperFirst */ |
278 | 0, /* mbInitRdIsModule */ | ||
279 | 0, /* mbConcatArgs */ | ||
280 | 0, /* mbAllowExtraInitRds */ | ||
281 | niro | 532 | }; |
282 | |||
283 | struct configFileInfo yabootConfigType = { | ||
284 | "/etc/yaboot.conf", /* defaultConfig */ | ||
285 | yabootKeywords, /* keywords */ | ||
286 | 0, /* defaultIsIndex */ | ||
287 | 0, /* defaultSupportSaved */ | ||
288 | LT_KERNEL, /* entrySeparator */ | ||
289 | 1, /* needsBootPrefix */ | ||
290 | 1, /* argsInQuotes */ | ||
291 | 15, /* maxTitleLength */ | ||
292 | 0, /* titleBracketed */ | ||
293 | niro | 914 | 0, /* mbHyperFirst */ |
294 | 0, /* mbInitRdIsModule */ | ||
295 | 0, /* mbConcatArgs */ | ||
296 | 1, /* mbAllowExtraInitRds */ | ||
297 | niro | 532 | }; |
298 | |||
299 | struct configFileInfo siloConfigType = { | ||
300 | "/etc/silo.conf", /* defaultConfig */ | ||
301 | siloKeywords, /* keywords */ | ||
302 | 0, /* defaultIsIndex */ | ||
303 | 0, /* defaultSupportSaved */ | ||
304 | LT_KERNEL, /* entrySeparator */ | ||
305 | 1, /* needsBootPrefix */ | ||
306 | 1, /* argsInQuotes */ | ||
307 | 15, /* maxTitleLength */ | ||
308 | 0, /* titleBracketed */ | ||
309 | niro | 914 | 0, /* mbHyperFirst */ |
310 | 0, /* mbInitRdIsModule */ | ||
311 | 0, /* mbConcatArgs */ | ||
312 | 0, /* mbAllowExtraInitRds */ | ||
313 | niro | 532 | }; |
314 | |||
315 | struct configFileInfo ziplConfigType = { | ||
316 | "/etc/zipl.conf", /* defaultConfig */ | ||
317 | ziplKeywords, /* keywords */ | ||
318 | 0, /* defaultIsIndex */ | ||
319 | 0, /* defaultSupportSaved */ | ||
320 | LT_TITLE, /* entrySeparator */ | ||
321 | 0, /* needsBootPrefix */ | ||
322 | 1, /* argsInQuotes */ | ||
323 | niro | 914 | 0, /* maxTitleLength */ |
324 | niro | 532 | 1, /* titleBracketed */ |
325 | niro | 914 | 0, /* mbHyperFirst */ |
326 | 0, /* mbInitRdIsModule */ | ||
327 | 0, /* mbConcatArgs */ | ||
328 | 0, /* mbAllowExtraInitRds */ | ||
329 | niro | 532 | }; |
330 | |||
331 | niro | 914 | struct configFileInfo extlinuxConfigType = { |
332 | "/boot/extlinux/extlinux.conf", /* defaultConfig */ | ||
333 | extlinuxKeywords, /* keywords */ | ||
334 | 0, /* defaultIsIndex */ | ||
335 | 0, /* defaultSupportSaved */ | ||
336 | LT_TITLE, /* entrySeparator */ | ||
337 | 1, /* needsBootPrefix */ | ||
338 | 0, /* argsInQuotes */ | ||
339 | 255, /* maxTitleLength */ | ||
340 | 0, /* titleBracketed */ | ||
341 | 0, /* mbHyperFirst */ | ||
342 | 0, /* mbInitRdIsModule */ | ||
343 | 0, /* mbConcatArgs */ | ||
344 | 1, /* mbAllowExtraInitRds */ | ||
345 | }; | ||
346 | |||
347 | niro | 532 | struct grubConfig { |
348 | struct singleLine * theLines; | ||
349 | struct singleEntry * entries; | ||
350 | char * primaryIndent; | ||
351 | char * secondaryIndent; | ||
352 | int defaultImage; /* -1 if none specified -- this value is | ||
353 | * written out, overriding original */ | ||
354 | int fallbackImage; /* just like defaultImage */ | ||
355 | int flags; | ||
356 | struct configFileInfo * cfi; | ||
357 | }; | ||
358 | |||
359 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index); | ||
360 | struct singleEntry * findEntryByPath(struct grubConfig * cfg, | ||
361 | const char * path, const char * prefix, | ||
362 | int * index); | ||
363 | static int readFile(int fd, char ** bufPtr); | ||
364 | static void lineInit(struct singleLine * line); | ||
365 | niro | 914 | struct singleLine * lineDup(struct singleLine * line); |
366 | niro | 532 | static void lineFree(struct singleLine * line); |
367 | static int lineWrite(FILE * out, struct singleLine * line, | ||
368 | struct configFileInfo * cfi); | ||
369 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
370 | struct configFileInfo * cfi); | ||
371 | static char * getRootSpecifier(char * str); | ||
372 | niro | 914 | static void insertElement(struct singleLine * line, |
373 | const char * item, int insertHere, | ||
374 | struct configFileInfo * cfi); | ||
375 | static void removeElement(struct singleLine * line, int removeHere); | ||
376 | static struct keywordTypes * getKeywordByType(enum lineType_e type, | ||
377 | struct configFileInfo * cfi); | ||
378 | static enum lineType_e getTypeByKeyword(char * keyword, | ||
379 | struct configFileInfo * cfi); | ||
380 | static struct singleLine * getLineByType(enum lineType_e type, | ||
381 | struct singleLine * line); | ||
382 | static int checkForExtLinux(struct grubConfig * config); | ||
383 | struct singleLine * addLineTmpl(struct singleEntry * entry, | ||
384 | struct singleLine * tmplLine, | ||
385 | struct singleLine * prevLine, | ||
386 | const char * val, | ||
387 | struct configFileInfo * cfi); | ||
388 | struct singleLine * addLine(struct singleEntry * entry, | ||
389 | struct configFileInfo * cfi, | ||
390 | enum lineType_e type, char * defaultIndent, | ||
391 | const char * val); | ||
392 | niro | 532 | |
393 | static char * sdupprintf(const char *format, ...) | ||
394 | #ifdef __GNUC__ | ||
395 | __attribute__ ((format (printf, 1, 2))); | ||
396 | #else | ||
397 | ; | ||
398 | #endif | ||
399 | |||
400 | static char * sdupprintf(const char *format, ...) { | ||
401 | char *buf = NULL; | ||
402 | char c; | ||
403 | va_list args; | ||
404 | size_t size = 0; | ||
405 | va_start(args, format); | ||
406 | |||
407 | /* XXX requires C99 vsnprintf behavior */ | ||
408 | size = vsnprintf(&c, 1, format, args) + 1; | ||
409 | if (size == -1) { | ||
410 | printf("ERROR: vsnprintf behavior is not C99\n"); | ||
411 | abort(); | ||
412 | } | ||
413 | |||
414 | va_end(args); | ||
415 | va_start(args, format); | ||
416 | |||
417 | buf = malloc(size); | ||
418 | if (buf == NULL) | ||
419 | return NULL; | ||
420 | vsnprintf(buf, size, format, args); | ||
421 | va_end (args); | ||
422 | |||
423 | return buf; | ||
424 | } | ||
425 | |||
426 | niro | 914 | static struct keywordTypes * getKeywordByType(enum lineType_e type, |
427 | struct configFileInfo * cfi) { | ||
428 | struct keywordTypes * kw; | ||
429 | for (kw = cfi->keywords; kw->key; kw++) { | ||
430 | if (kw->type == type) | ||
431 | return kw; | ||
432 | } | ||
433 | return NULL; | ||
434 | } | ||
435 | |||
436 | static char * getpathbyspec(char *device) { | ||
437 | static blkid_cache blkid; | ||
438 | |||
439 | if (!blkid) | ||
440 | blkid_get_cache(&blkid, NULL); | ||
441 | |||
442 | return blkid_get_devname(blkid, device, NULL); | ||
443 | } | ||
444 | |||
445 | static enum lineType_e getTypeByKeyword(char * keyword, | ||
446 | struct configFileInfo * cfi) { | ||
447 | struct keywordTypes * kw; | ||
448 | for (kw = cfi->keywords; kw->key; kw++) { | ||
449 | if (!strcmp(keyword, kw->key)) | ||
450 | return kw->type; | ||
451 | } | ||
452 | return LT_UNKNOWN; | ||
453 | } | ||
454 | |||
455 | static struct singleLine * getLineByType(enum lineType_e type, | ||
456 | struct singleLine * line) { | ||
457 | dbgPrintf("getLineByType(%d): ", type); | ||
458 | for (; line; line = line->next) { | ||
459 | dbgPrintf("%d:%s ", line->type, | ||
460 | line->numElements ? line->elements[0].item : "(empty)"); | ||
461 | if (line->type & type) break; | ||
462 | } | ||
463 | dbgPrintf(line ? "\n" : " (failed)\n"); | ||
464 | return line; | ||
465 | } | ||
466 | |||
467 | niro | 532 | static int isBracketedTitle(struct singleLine * line) { |
468 | niro | 914 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
469 | niro | 532 | int len = strlen(line->elements[0].item); |
470 | if (*(line->elements[0].item + len - 1) == ']') { | ||
471 | /* FIXME: this is a hack... */ | ||
472 | if (strcmp(line->elements[0].item, "[defaultboot]")) { | ||
473 | return 1; | ||
474 | } | ||
475 | } | ||
476 | } | ||
477 | return 0; | ||
478 | } | ||
479 | |||
480 | static int isEntrySeparator(struct singleLine * line, | ||
481 | struct configFileInfo * cfi) { | ||
482 | niro | 914 | return line->type == cfi->entrySeparator || line->type == LT_OTHER || |
483 | (cfi->titleBracketed && isBracketedTitle(line)); | ||
484 | niro | 532 | } |
485 | |||
486 | /* extract the title from within brackets (for zipl) */ | ||
487 | static char * extractTitle(struct singleLine * line) { | ||
488 | /* bracketed title... let's extract it (leaks a byte) */ | ||
489 | char * title; | ||
490 | title = strdup(line->elements[0].item); | ||
491 | title++; | ||
492 | *(title + strlen(title) - 1) = '\0'; | ||
493 | return title; | ||
494 | } | ||
495 | |||
496 | static int readFile(int fd, char ** bufPtr) { | ||
497 | int alloced = 0, size = 0, i = 0; | ||
498 | char * buf = NULL; | ||
499 | |||
500 | do { | ||
501 | size += i; | ||
502 | if ((size + 1024) > alloced) { | ||
503 | alloced += 4096; | ||
504 | buf = realloc(buf, alloced + 1); | ||
505 | } | ||
506 | } while ((i = read(fd, buf + size, 1024)) > 0); | ||
507 | |||
508 | if (i < 0) { | ||
509 | fprintf(stderr, _("error reading input: %s\n"), strerror(errno)); | ||
510 | free(buf); | ||
511 | return 1; | ||
512 | } | ||
513 | |||
514 | buf = realloc(buf, size + 2); | ||
515 | if (size == 0) | ||
516 | buf[size++] = '\n'; | ||
517 | else | ||
518 | if (buf[size - 1] != '\n') | ||
519 | buf[size++] = '\n'; | ||
520 | buf[size] = '\0'; | ||
521 | |||
522 | *bufPtr = buf; | ||
523 | |||
524 | return 0; | ||
525 | } | ||
526 | |||
527 | static void lineInit(struct singleLine * line) { | ||
528 | line->indent = NULL; | ||
529 | line->elements = NULL; | ||
530 | line->numElements = 0; | ||
531 | line->next = NULL; | ||
532 | } | ||
533 | |||
534 | niro | 914 | struct singleLine * lineDup(struct singleLine * line) { |
535 | int i; | ||
536 | struct singleLine * newLine = malloc(sizeof(*newLine)); | ||
537 | |||
538 | newLine->indent = strdup(line->indent); | ||
539 | newLine->next = NULL; | ||
540 | newLine->type = line->type; | ||
541 | newLine->numElements = line->numElements; | ||
542 | newLine->elements = malloc(sizeof(*newLine->elements) * | ||
543 | newLine->numElements); | ||
544 | |||
545 | for (i = 0; i < newLine->numElements; i++) { | ||
546 | newLine->elements[i].indent = strdup(line->elements[i].indent); | ||
547 | newLine->elements[i].item = strdup(line->elements[i].item); | ||
548 | } | ||
549 | |||
550 | return newLine; | ||
551 | } | ||
552 | |||
553 | niro | 532 | static void lineFree(struct singleLine * line) { |
554 | int i; | ||
555 | |||
556 | if (line->indent) free(line->indent); | ||
557 | |||
558 | for (i = 0; i < line->numElements; i++) { | ||
559 | free(line->elements[i].item); | ||
560 | free(line->elements[i].indent); | ||
561 | } | ||
562 | |||
563 | if (line->elements) free(line->elements); | ||
564 | lineInit(line); | ||
565 | } | ||
566 | |||
567 | static int lineWrite(FILE * out, struct singleLine * line, | ||
568 | struct configFileInfo * cfi) { | ||
569 | int i; | ||
570 | |||
571 | if (fprintf(out, "%s", line->indent) == -1) return -1; | ||
572 | |||
573 | for (i = 0; i < line->numElements; i++) { | ||
574 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) | ||
575 | if (fputc('"', out) == EOF) return -1; | ||
576 | |||
577 | if (fprintf(out, "%s", line->elements[i].item) == -1) return -1; | ||
578 | niro | 914 | if (i < line->numElements - 1) |
579 | if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1; | ||
580 | niro | 532 | } |
581 | |||
582 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) | ||
583 | if (fputc('"', out) == EOF) return -1; | ||
584 | |||
585 | if (fprintf(out, "\n") == -1) return -1; | ||
586 | |||
587 | return 0; | ||
588 | } | ||
589 | |||
590 | /* we've guaranteed that the buffer ends w/ \n\0 */ | ||
591 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
592 | struct configFileInfo * cfi) { | ||
593 | char * end; | ||
594 | char * start = *bufPtr; | ||
595 | char * chptr; | ||
596 | int elementsAlloced = 0; | ||
597 | struct lineElement * element; | ||
598 | int first = 1; | ||
599 | |||
600 | lineFree(line); | ||
601 | |||
602 | end = strchr(start, '\n'); | ||
603 | *end = '\0'; | ||
604 | *bufPtr = end + 1; | ||
605 | |||
606 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; | ||
607 | |||
608 | line->indent = strndup(start, chptr - start); | ||
609 | start = chptr; | ||
610 | |||
611 | while (start < end) { | ||
612 | /* we know !isspace(*start) */ | ||
613 | |||
614 | if (elementsAlloced == line->numElements) { | ||
615 | elementsAlloced += 5; | ||
616 | line->elements = realloc(line->elements, | ||
617 | sizeof(*line->elements) * elementsAlloced); | ||
618 | } | ||
619 | |||
620 | element = line->elements + line->numElements; | ||
621 | |||
622 | chptr = start; | ||
623 | while (*chptr && !isspace(*chptr)) { | ||
624 | if (first && *chptr == '=') break; | ||
625 | chptr++; | ||
626 | } | ||
627 | element->item = strndup(start, chptr - start); | ||
628 | start = chptr; | ||
629 | |||
630 | /* lilo actually accepts the pathological case of append = " foo " */ | ||
631 | if (*start == '=') | ||
632 | chptr = start + 1; | ||
633 | else | ||
634 | chptr = start; | ||
635 | |||
636 | do { | ||
637 | for (; *chptr && isspace(*chptr); chptr++); | ||
638 | if (*chptr == '=') | ||
639 | chptr = chptr + 1; | ||
640 | } while (isspace(*chptr)); | ||
641 | |||
642 | element->indent = strndup(start, chptr - start); | ||
643 | start = chptr; | ||
644 | |||
645 | line->numElements++; | ||
646 | first = 0; | ||
647 | } | ||
648 | |||
649 | if (!line->numElements) | ||
650 | line->type = LT_WHITESPACE; | ||
651 | else { | ||
652 | niro | 914 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
653 | if (line->type == LT_UNKNOWN) { | ||
654 | niro | 532 | /* zipl does [title] instead of something reasonable like all |
655 | * the other boot loaders. kind of ugly */ | ||
656 | if (cfi->titleBracketed && isBracketedTitle(line)) { | ||
657 | line->type = LT_TITLE; | ||
658 | } | ||
659 | |||
660 | /* this is awkward, but we need to be able to handle keywords | ||
661 | that begin with a # (specifically for #boot in grub.conf), | ||
662 | but still make comments lines with no elements (everything | ||
663 | stored in the indent */ | ||
664 | if (*line->elements[0].item == '#') { | ||
665 | char * fullLine; | ||
666 | int len; | ||
667 | int i; | ||
668 | |||
669 | len = strlen(line->indent); | ||
670 | for (i = 0; i < line->numElements; i++) | ||
671 | len += strlen(line->elements[i].item) + | ||
672 | strlen(line->elements[i].indent); | ||
673 | |||
674 | fullLine = malloc(len + 1); | ||
675 | strcpy(fullLine, line->indent); | ||
676 | free(line->indent); | ||
677 | line->indent = fullLine; | ||
678 | |||
679 | for (i = 0; i < line->numElements; i++) { | ||
680 | strcat(fullLine, line->elements[i].item); | ||
681 | strcat(fullLine, line->elements[i].indent); | ||
682 | free(line->elements[i].item); | ||
683 | free(line->elements[i].indent); | ||
684 | } | ||
685 | |||
686 | line->type = LT_WHITESPACE; | ||
687 | line->numElements = 0; | ||
688 | } | ||
689 | niro | 914 | } else { |
690 | struct keywordTypes *kw; | ||
691 | |||
692 | kw = getKeywordByType(line->type, cfi); | ||
693 | |||
694 | /* space isn't the only separator, we need to split | ||
695 | * elements up more | ||
696 | */ | ||
697 | if (!isspace(kw->separatorChar)) { | ||
698 | int i; | ||
699 | char indent[2] = ""; | ||
700 | indent[0] = kw->separatorChar; | ||
701 | for (i = 1; i < line->numElements; i++) { | ||
702 | char *p; | ||
703 | int j; | ||
704 | int numNewElements; | ||
705 | |||
706 | numNewElements = 0; | ||
707 | p = line->elements[i].item; | ||
708 | while (*p != '\0') { | ||
709 | if (*p == kw->separatorChar) | ||
710 | numNewElements++; | ||
711 | p++; | ||
712 | } | ||
713 | if (line->numElements + numNewElements >= elementsAlloced) { | ||
714 | elementsAlloced += numNewElements + 5; | ||
715 | line->elements = realloc(line->elements, | ||
716 | sizeof(*line->elements) * elementsAlloced); | ||
717 | } | ||
718 | |||
719 | for (j = line->numElements; j > i; j--) { | ||
720 | line->elements[j + numNewElements] = line->elements[j]; | ||
721 | } | ||
722 | line->numElements += numNewElements; | ||
723 | |||
724 | p = line->elements[i].item; | ||
725 | while (*p != '\0') { | ||
726 | |||
727 | while (*p != kw->separatorChar && *p != '\0') p++; | ||
728 | if (*p == '\0') { | ||
729 | break; | ||
730 | } | ||
731 | |||
732 | free(line->elements[i].indent); | ||
733 | line->elements[i].indent = strdup(indent); | ||
734 | *p++ = '\0'; | ||
735 | i++; | ||
736 | line->elements[i].item = strdup(p); | ||
737 | line->elements[i].indent = strdup(""); | ||
738 | p = line->elements[i].item; | ||
739 | } | ||
740 | } | ||
741 | } | ||
742 | niro | 532 | } |
743 | } | ||
744 | |||
745 | return 0; | ||
746 | } | ||
747 | |||
748 | static struct grubConfig * readConfig(const char * inName, | ||
749 | struct configFileInfo * cfi) { | ||
750 | int in; | ||
751 | char * incoming = NULL, * head; | ||
752 | int rc; | ||
753 | int sawEntry = 0; | ||
754 | int movedLine = 0; | ||
755 | struct grubConfig * cfg; | ||
756 | struct singleLine * last = NULL, * line, * defaultLine = NULL; | ||
757 | char * end; | ||
758 | struct singleEntry * entry = NULL; | ||
759 | int i, len; | ||
760 | char * buf; | ||
761 | |||
762 | if (!strcmp(inName, "-")) { | ||
763 | in = 0; | ||
764 | } else { | ||
765 | if ((in = open(inName, O_RDONLY)) < 0) { | ||
766 | fprintf(stderr, _("error opening %s for read: %s\n"), | ||
767 | inName, strerror(errno)); | ||
768 | return NULL; | ||
769 | } | ||
770 | } | ||
771 | |||
772 | rc = readFile(in, &incoming); | ||
773 | close(in); | ||
774 | if (rc) return NULL; | ||
775 | |||
776 | head = incoming; | ||
777 | cfg = malloc(sizeof(*cfg)); | ||
778 | cfg->primaryIndent = strdup(""); | ||
779 | cfg->secondaryIndent = strdup("\t"); | ||
780 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; | ||
781 | cfg->cfi = cfi; | ||
782 | cfg->theLines = NULL; | ||
783 | cfg->entries = NULL; | ||
784 | cfg->fallbackImage = 0; | ||
785 | |||
786 | /* copy everything we have */ | ||
787 | while (*head) { | ||
788 | line = malloc(sizeof(*line)); | ||
789 | lineInit(line); | ||
790 | |||
791 | if (getNextLine(&head, line, cfi)) { | ||
792 | free(line); | ||
793 | /* XXX memory leak of everything in cfg */ | ||
794 | return NULL; | ||
795 | } | ||
796 | |||
797 | if (!sawEntry && line->numElements) { | ||
798 | free(cfg->primaryIndent); | ||
799 | cfg->primaryIndent = strdup(line->indent); | ||
800 | } else if (line->numElements) { | ||
801 | free(cfg->secondaryIndent); | ||
802 | cfg->secondaryIndent = strdup(line->indent); | ||
803 | } | ||
804 | |||
805 | if (isEntrySeparator(line, cfi)) { | ||
806 | sawEntry = 1; | ||
807 | if (!entry) { | ||
808 | cfg->entries = malloc(sizeof(*entry)); | ||
809 | entry = cfg->entries; | ||
810 | } else { | ||
811 | entry->next = malloc(sizeof(*entry)); | ||
812 | entry = entry->next; | ||
813 | } | ||
814 | |||
815 | entry->skip = 0; | ||
816 | entry->multiboot = 0; | ||
817 | entry->lines = NULL; | ||
818 | entry->next = NULL; | ||
819 | } | ||
820 | |||
821 | if (line->type == LT_DEFAULT && line->numElements == 2) { | ||
822 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; | ||
823 | defaultLine = line; | ||
824 | niro | 914 | |
825 | } else if (line->type == LT_KERNEL) { | ||
826 | /* if by some freak chance this is multiboot and the "module" | ||
827 | * lines came earlier in the template, make sure to use LT_HYPER | ||
828 | * instead of LT_KERNEL now | ||
829 | */ | ||
830 | if (entry->multiboot) | ||
831 | line->type = LT_HYPER; | ||
832 | |||
833 | niro | 532 | } else if (line->type == LT_MBMODULE) { |
834 | niro | 914 | /* go back and fix the LT_KERNEL line to indicate LT_HYPER |
835 | * instead, now that we know this is a multiboot entry. | ||
836 | * This only applies to grub, but that's the only place we | ||
837 | * should find LT_MBMODULE lines anyway. | ||
838 | */ | ||
839 | struct singleLine * l; | ||
840 | for (l = entry->lines; l; l = l->next) { | ||
841 | if (l->type == LT_HYPER) | ||
842 | break; | ||
843 | else if (l->type == LT_KERNEL) { | ||
844 | l->type = LT_HYPER; | ||
845 | break; | ||
846 | } | ||
847 | } | ||
848 | niro | 532 | entry->multiboot = 1; |
849 | niro | 914 | |
850 | } else if (line->type == LT_HYPER) { | ||
851 | entry->multiboot = 1; | ||
852 | |||
853 | niro | 532 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
854 | cfg->fallbackImage = strtol(line->elements[1].item, &end, 10); | ||
855 | if (*end) cfg->fallbackImage = -1; | ||
856 | niro | 914 | |
857 | niro | 532 | } else if (line->type == LT_TITLE && line->numElements > 1) { |
858 | /* make the title a single argument (undoing our parsing) */ | ||
859 | len = 0; | ||
860 | for (i = 1; i < line->numElements; i++) { | ||
861 | len += strlen(line->elements[i].item); | ||
862 | len += strlen(line->elements[i].indent); | ||
863 | } | ||
864 | buf = malloc(len + 1); | ||
865 | *buf = '\0'; | ||
866 | |||
867 | for (i = 1; i < line->numElements; i++) { | ||
868 | strcat(buf, line->elements[i].item); | ||
869 | free(line->elements[i].item); | ||
870 | |||
871 | if ((i + 1) != line->numElements) { | ||
872 | strcat(buf, line->elements[i].indent); | ||
873 | free(line->elements[i].indent); | ||
874 | } | ||
875 | } | ||
876 | |||
877 | line->elements[1].indent = | ||
878 | line->elements[line->numElements - 1].indent; | ||
879 | line->elements[1].item = buf; | ||
880 | line->numElements = 2; | ||
881 | niro | 914 | |
882 | niro | 532 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
883 | /* Strip off any " which may be present; they'll be put back | ||
884 | on write. This is one of the few (the only?) places that grubby | ||
885 | canonicalizes the output */ | ||
886 | |||
887 | if (line->numElements >= 2) { | ||
888 | int last, len; | ||
889 | |||
890 | if (*line->elements[1].item == '"') | ||
891 | niro | 914 | memmove(line->elements[1].item, line->elements[1].item + 1, |
892 | strlen(line->elements[1].item + 1) + 1); | ||
893 | niro | 532 | |
894 | last = line->numElements - 1; | ||
895 | len = strlen(line->elements[last].item) - 1; | ||
896 | if (line->elements[last].item[len] == '"') | ||
897 | line->elements[last].item[len] = '\0'; | ||
898 | } | ||
899 | } | ||
900 | |||
901 | /* If we find a generic config option which should live at the | ||
902 | top of the file, move it there. Old versions of grubby were | ||
903 | probably responsible for putting new images in the wrong | ||
904 | place in front of it anyway. */ | ||
905 | if (sawEntry && line->type == LT_GENERIC) { | ||
906 | struct singleLine **l = &cfg->theLines; | ||
907 | struct singleLine **last_nonws = &cfg->theLines; | ||
908 | while (*l) { | ||
909 | if ((*l)->type != LT_WHITESPACE) | ||
910 | last_nonws = &((*l)->next); | ||
911 | l = &((*l)->next); | ||
912 | } | ||
913 | line->next = *last_nonws; | ||
914 | *last_nonws = line; | ||
915 | movedLine = 1; | ||
916 | continue; /* without setting 'last' */ | ||
917 | } | ||
918 | niro | 914 | |
919 | niro | 532 | /* If a second line of whitespace happens after a generic option |
920 | which was moved, drop it. */ | ||
921 | if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) { | ||
922 | lineFree(line); | ||
923 | free(line); | ||
924 | movedLine = 0; | ||
925 | continue; | ||
926 | } | ||
927 | movedLine = 0; | ||
928 | |||
929 | if (sawEntry) { | ||
930 | if (!entry->lines) | ||
931 | entry->lines = line; | ||
932 | else | ||
933 | last->next = line; | ||
934 | niro | 914 | dbgPrintf("readConfig added %d to %p\n", line->type, entry); |
935 | niro | 532 | } else { |
936 | if (!cfg->theLines) | ||
937 | cfg->theLines = line; | ||
938 | niro | 914 | else |
939 | niro | 532 | last->next = line; |
940 | niro | 914 | dbgPrintf("readConfig added %d to cfg\n", line->type); |
941 | niro | 532 | } |
942 | |||
943 | last = line; | ||
944 | } | ||
945 | |||
946 | free(incoming); | ||
947 | |||
948 | if (defaultLine) { | ||
949 | if (cfi->defaultSupportSaved && | ||
950 | !strncmp(defaultLine->elements[1].item, "saved", 5)) { | ||
951 | cfg->defaultImage = DEFAULT_SAVED; | ||
952 | } else if (cfi->defaultIsIndex) { | ||
953 | cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10); | ||
954 | if (*end) cfg->defaultImage = -1; | ||
955 | } else if (defaultLine->numElements >= 2) { | ||
956 | i = 0; | ||
957 | while ((entry = findEntryByIndex(cfg, i))) { | ||
958 | for (line = entry->lines; line; line = line->next) | ||
959 | if (line->type == LT_TITLE) break; | ||
960 | |||
961 | if (!cfi->titleBracketed) { | ||
962 | if (line && (line->numElements >= 2) && | ||
963 | !strcmp(defaultLine->elements[1].item, | ||
964 | line->elements[1].item)) break; | ||
965 | } else if (line) { | ||
966 | if (!strcmp(defaultLine->elements[1].item, | ||
967 | extractTitle(line))) break; | ||
968 | } | ||
969 | i++; | ||
970 | niro | 914 | entry = NULL; |
971 | niro | 532 | } |
972 | |||
973 | niro | 914 | if (entry){ |
974 | cfg->defaultImage = i; | ||
975 | }else{ | ||
976 | cfg->defaultImage = -1; | ||
977 | } | ||
978 | niro | 532 | } |
979 | niro | 914 | } else { |
980 | cfg->defaultImage = 0; | ||
981 | niro | 532 | } |
982 | |||
983 | return cfg; | ||
984 | } | ||
985 | |||
986 | static void writeDefault(FILE * out, char * indent, | ||
987 | char * separator, struct grubConfig * cfg) { | ||
988 | struct singleEntry * entry; | ||
989 | struct singleLine * line; | ||
990 | int i; | ||
991 | |||
992 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return; | ||
993 | |||
994 | if (cfg->defaultImage == DEFAULT_SAVED) | ||
995 | fprintf(out, "%sdefault%ssaved\n", indent, separator); | ||
996 | else if (cfg->defaultImage > -1) { | ||
997 | if (cfg->cfi->defaultIsIndex) { | ||
998 | fprintf(out, "%sdefault%s%d\n", indent, separator, | ||
999 | cfg->defaultImage); | ||
1000 | } else { | ||
1001 | int image = cfg->defaultImage; | ||
1002 | |||
1003 | entry = cfg->entries; | ||
1004 | while (entry && entry->skip) entry = entry->next; | ||
1005 | |||
1006 | i = 0; | ||
1007 | while (entry && i < image) { | ||
1008 | entry = entry->next; | ||
1009 | |||
1010 | while (entry && entry->skip) entry = entry->next; | ||
1011 | i++; | ||
1012 | } | ||
1013 | |||
1014 | if (!entry) return; | ||
1015 | |||
1016 | niro | 914 | line = getLineByType(LT_TITLE, entry->lines); |
1017 | niro | 532 | |
1018 | if (line && line->numElements >= 2) | ||
1019 | fprintf(out, "%sdefault%s%s\n", indent, separator, | ||
1020 | line->elements[1].item); | ||
1021 | else if (line && (line->numElements == 1) && | ||
1022 | cfg->cfi->titleBracketed) { | ||
1023 | fprintf(out, "%sdefault%s%s\n", indent, separator, | ||
1024 | extractTitle(line)); | ||
1025 | } | ||
1026 | } | ||
1027 | } | ||
1028 | } | ||
1029 | |||
1030 | static int writeConfig(struct grubConfig * cfg, char * outName, | ||
1031 | const char * prefix) { | ||
1032 | FILE * out; | ||
1033 | struct singleLine * line; | ||
1034 | struct singleEntry * entry; | ||
1035 | char * tmpOutName; | ||
1036 | int needs = MAIN_DEFAULT; | ||
1037 | struct stat sb; | ||
1038 | int i; | ||
1039 | |||
1040 | if (!strcmp(outName, "-")) { | ||
1041 | out = stdout; | ||
1042 | tmpOutName = NULL; | ||
1043 | } else { | ||
1044 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { | ||
1045 | char * buf; | ||
1046 | int len = 256; | ||
1047 | int rc; | ||
1048 | |||
1049 | /* most likely the symlink is relative, so change our | ||
1050 | niro | 914 | directory to the dir of the symlink */ |
1051 | rc = chdir(dirname(strdupa(outName))); | ||
1052 | niro | 532 | do { |
1053 | buf = alloca(len + 1); | ||
1054 | niro | 914 | rc = readlink(basename(outName), buf, len); |
1055 | niro | 532 | if (rc == len) len += 256; |
1056 | } while (rc == len); | ||
1057 | |||
1058 | if (rc < 0) { | ||
1059 | fprintf(stderr, _("grubby: error readlink link %s: %s\n"), | ||
1060 | outName, strerror(errno)); | ||
1061 | return 1; | ||
1062 | } | ||
1063 | |||
1064 | outName = buf; | ||
1065 | outName[rc] = '\0'; | ||
1066 | } | ||
1067 | |||
1068 | tmpOutName = alloca(strlen(outName) + 2); | ||
1069 | sprintf(tmpOutName, "%s-", outName); | ||
1070 | out = fopen(tmpOutName, "w"); | ||
1071 | if (!out) { | ||
1072 | fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName, | ||
1073 | strerror(errno)); | ||
1074 | return 1; | ||
1075 | } | ||
1076 | |||
1077 | if (!stat(outName, &sb)) { | ||
1078 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { | ||
1079 | fprintf(stderr, _("grubby: error setting perms on %s: %s\n"), | ||
1080 | tmpOutName, strerror(errno)); | ||
1081 | fclose(out); | ||
1082 | unlink(tmpOutName); | ||
1083 | return 1; | ||
1084 | } | ||
1085 | } | ||
1086 | } | ||
1087 | |||
1088 | line = cfg->theLines; | ||
1089 | while (line) { | ||
1090 | if (line->type == LT_DEFAULT) { | ||
1091 | writeDefault(out, line->indent, line->elements[0].indent, cfg); | ||
1092 | needs &= ~MAIN_DEFAULT; | ||
1093 | } else if (line->type == LT_FALLBACK) { | ||
1094 | if (cfg->fallbackImage > -1) | ||
1095 | fprintf(out, "%s%s%s%d\n", line->indent, | ||
1096 | line->elements[0].item, line->elements[0].indent, | ||
1097 | cfg->fallbackImage); | ||
1098 | } else { | ||
1099 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1100 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1101 | tmpOutName, strerror(errno)); | ||
1102 | fclose(out); | ||
1103 | unlink(tmpOutName); | ||
1104 | return 1; | ||
1105 | } | ||
1106 | } | ||
1107 | |||
1108 | line = line->next; | ||
1109 | } | ||
1110 | |||
1111 | if (needs & MAIN_DEFAULT) { | ||
1112 | writeDefault(out, cfg->primaryIndent, "=", cfg); | ||
1113 | needs &= ~MAIN_DEFAULT; | ||
1114 | } | ||
1115 | |||
1116 | i = 0; | ||
1117 | while ((entry = findEntryByIndex(cfg, i++))) { | ||
1118 | if (entry->skip) continue; | ||
1119 | |||
1120 | line = entry->lines; | ||
1121 | while (line) { | ||
1122 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1123 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1124 | tmpOutName, strerror(errno)); | ||
1125 | fclose(out); | ||
1126 | unlink(tmpOutName); | ||
1127 | return 1; | ||
1128 | } | ||
1129 | line = line->next; | ||
1130 | } | ||
1131 | } | ||
1132 | |||
1133 | if (tmpOutName) { | ||
1134 | if (rename(tmpOutName, outName)) { | ||
1135 | fprintf(stderr, _("grubby: error moving %s to %s: %s\n"), | ||
1136 | tmpOutName, outName, strerror(errno)); | ||
1137 | unlink(outName); | ||
1138 | return 1; | ||
1139 | } | ||
1140 | } | ||
1141 | |||
1142 | return 0; | ||
1143 | } | ||
1144 | |||
1145 | static int numEntries(struct grubConfig *cfg) { | ||
1146 | int i = 0; | ||
1147 | struct singleEntry * entry; | ||
1148 | |||
1149 | entry = cfg->entries; | ||
1150 | while (entry) { | ||
1151 | if (!entry->skip) | ||
1152 | i++; | ||
1153 | entry = entry->next; | ||
1154 | } | ||
1155 | return i; | ||
1156 | } | ||
1157 | |||
1158 | int suitableImage(struct singleEntry * entry, const char * bootPrefix, | ||
1159 | int skipRemoved, int flags) { | ||
1160 | struct singleLine * line; | ||
1161 | char * fullName; | ||
1162 | int i; | ||
1163 | struct stat sb, sb2; | ||
1164 | char * dev; | ||
1165 | char * rootspec; | ||
1166 | |||
1167 | if (skipRemoved && entry->skip) return 0; | ||
1168 | |||
1169 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1170 | if (!line || line->numElements < 2) return 0; | ||
1171 | |||
1172 | niro | 532 | if (flags & GRUBBY_BADIMAGE_OKAY) return 1; |
1173 | |||
1174 | fullName = alloca(strlen(bootPrefix) + | ||
1175 | strlen(line->elements[1].item) + 1); | ||
1176 | rootspec = getRootSpecifier(line->elements[1].item); | ||
1177 | sprintf(fullName, "%s%s", bootPrefix, | ||
1178 | niro | 914 | line->elements[1].item + (rootspec ? strlen(rootspec) : 0)); |
1179 | niro | 532 | if (access(fullName, R_OK)) return 0; |
1180 | |||
1181 | for (i = 2; i < line->numElements; i++) | ||
1182 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1183 | if (i < line->numElements) { | ||
1184 | dev = line->elements[i].item + 5; | ||
1185 | } else { | ||
1186 | /* look for a lilo style LT_ROOT line */ | ||
1187 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
1188 | niro | 532 | |
1189 | if (line && line->numElements >= 2) { | ||
1190 | dev = line->elements[1].item; | ||
1191 | } else { | ||
1192 | niro | 914 | /* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS. |
1193 | * grub+multiboot uses LT_MBMODULE for the args, so check that too. | ||
1194 | */ | ||
1195 | line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines); | ||
1196 | niro | 532 | |
1197 | /* failed to find one */ | ||
1198 | if (!line) return 0; | ||
1199 | |||
1200 | for (i = 1; i < line->numElements; i++) | ||
1201 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1202 | if (i < line->numElements) | ||
1203 | dev = line->elements[i].item + 5; | ||
1204 | else { | ||
1205 | /* it failed too... can't find root= */ | ||
1206 | return 0; | ||
1207 | } | ||
1208 | } | ||
1209 | } | ||
1210 | |||
1211 | niro | 914 | dev = getpathbyspec(dev); |
1212 | if (!dev) | ||
1213 | return 0; | ||
1214 | niro | 532 | |
1215 | niro | 914 | i = stat(dev, &sb); |
1216 | if (i) | ||
1217 | return 0; | ||
1218 | |||
1219 | niro | 532 | stat("/", &sb2); |
1220 | |||
1221 | niro | 914 | if (sb.st_rdev != sb2.st_dev) |
1222 | return 0; | ||
1223 | niro | 532 | |
1224 | return 1; | ||
1225 | } | ||
1226 | |||
1227 | /* returns the first match on or after the one pointed to by index (if index | ||
1228 | is not NULL) which is not marked as skip */ | ||
1229 | struct singleEntry * findEntryByPath(struct grubConfig * config, | ||
1230 | const char * kernel, const char * prefix, | ||
1231 | int * index) { | ||
1232 | struct singleEntry * entry = NULL; | ||
1233 | struct singleLine * line; | ||
1234 | int i; | ||
1235 | char * chptr; | ||
1236 | char * rootspec = NULL; | ||
1237 | enum lineType_e checkType = LT_KERNEL; | ||
1238 | |||
1239 | if (isdigit(*kernel)) { | ||
1240 | int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); | ||
1241 | |||
1242 | i = 0; | ||
1243 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1244 | while (*chptr == ',') { | ||
1245 | i++; | ||
1246 | kernel = chptr + 1; | ||
1247 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1248 | } | ||
1249 | |||
1250 | if (*chptr) { | ||
1251 | /* can't parse it, bail */ | ||
1252 | return NULL; | ||
1253 | } | ||
1254 | |||
1255 | indexVars[i + 1] = -1; | ||
1256 | |||
1257 | i = 0; | ||
1258 | if (index) { | ||
1259 | while (i < *index) i++; | ||
1260 | if (indexVars[i] == -1) return NULL; | ||
1261 | } | ||
1262 | |||
1263 | entry = findEntryByIndex(config, indexVars[i]); | ||
1264 | if (!entry) return NULL; | ||
1265 | |||
1266 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1267 | niro | 532 | if (!line) return NULL; |
1268 | |||
1269 | if (index) *index = indexVars[i]; | ||
1270 | return entry; | ||
1271 | } | ||
1272 | |||
1273 | if (!strcmp(kernel, "DEFAULT")) { | ||
1274 | if (index && *index > config->defaultImage) { | ||
1275 | entry = NULL; | ||
1276 | } else { | ||
1277 | entry = findEntryByIndex(config, config->defaultImage); | ||
1278 | if (entry && entry->skip) | ||
1279 | entry = NULL; | ||
1280 | else if (index) | ||
1281 | *index = config->defaultImage; | ||
1282 | } | ||
1283 | } else if (!strcmp(kernel, "ALL")) { | ||
1284 | if (index) | ||
1285 | i = *index; | ||
1286 | else | ||
1287 | i = 0; | ||
1288 | |||
1289 | while ((entry = findEntryByIndex(config, i))) { | ||
1290 | if (!entry->skip) break; | ||
1291 | i++; | ||
1292 | } | ||
1293 | |||
1294 | if (entry && index) | ||
1295 | *index = i; | ||
1296 | } else { | ||
1297 | if (index) | ||
1298 | i = *index; | ||
1299 | else | ||
1300 | i = 0; | ||
1301 | |||
1302 | if (!strncmp(kernel, "TITLE=", 6)) { | ||
1303 | prefix = ""; | ||
1304 | checkType = LT_TITLE; | ||
1305 | kernel += 6; | ||
1306 | } | ||
1307 | |||
1308 | niro | 914 | for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) { |
1309 | if (entry->skip) continue; | ||
1310 | niro | 532 | |
1311 | niro | 914 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry); |
1312 | niro | 532 | |
1313 | niro | 914 | /* check all the lines matching checkType */ |
1314 | for (line = entry->lines; line; line = line->next) { | ||
1315 | line = getLineByType(entry->multiboot && checkType == LT_KERNEL ? | ||
1316 | LT_KERNEL|LT_MBMODULE|LT_HYPER : | ||
1317 | checkType, line); | ||
1318 | if (!line) break; /* not found in this entry */ | ||
1319 | niro | 532 | |
1320 | niro | 914 | if (line && line->numElements >= 2) { |
1321 | rootspec = getRootSpecifier(line->elements[1].item); | ||
1322 | if (!strcmp(line->elements[1].item + | ||
1323 | ((rootspec != NULL) ? strlen(rootspec) : 0), | ||
1324 | kernel + strlen(prefix))) | ||
1325 | break; | ||
1326 | } | ||
1327 | } | ||
1328 | |||
1329 | /* make sure this entry has a kernel identifier; this skips | ||
1330 | * non-Linux boot entries (could find netbsd etc, though, which is | ||
1331 | * unfortunate) | ||
1332 | */ | ||
1333 | if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines)) | ||
1334 | break; /* found 'im! */ | ||
1335 | niro | 532 | } |
1336 | |||
1337 | if (index) *index = i; | ||
1338 | } | ||
1339 | |||
1340 | return entry; | ||
1341 | } | ||
1342 | |||
1343 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) { | ||
1344 | struct singleEntry * entry; | ||
1345 | |||
1346 | entry = cfg->entries; | ||
1347 | while (index && entry) { | ||
1348 | entry = entry->next; | ||
1349 | index--; | ||
1350 | } | ||
1351 | |||
1352 | return entry; | ||
1353 | } | ||
1354 | |||
1355 | /* Find a good template to use for the new kernel. An entry is | ||
1356 | * good if the kernel and mkinitrd exist (even if the entry | ||
1357 | * is going to be removed). Try and use the default entry, but | ||
1358 | * if that doesn't work just take the first. If we can't find one, | ||
1359 | * bail. */ | ||
1360 | struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix, | ||
1361 | int * indexPtr, int skipRemoved, int flags) { | ||
1362 | struct singleEntry * entry, * entry2; | ||
1363 | int index; | ||
1364 | |||
1365 | if (cfg->defaultImage > -1) { | ||
1366 | entry = findEntryByIndex(cfg, cfg->defaultImage); | ||
1367 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { | ||
1368 | if (indexPtr) *indexPtr = cfg->defaultImage; | ||
1369 | return entry; | ||
1370 | } | ||
1371 | } | ||
1372 | |||
1373 | index = 0; | ||
1374 | while ((entry = findEntryByIndex(cfg, index))) { | ||
1375 | if (suitableImage(entry, prefix, skipRemoved, flags)) { | ||
1376 | int j; | ||
1377 | for (j = 0; j < index; j++) { | ||
1378 | entry2 = findEntryByIndex(cfg, j); | ||
1379 | if (entry2->skip) index--; | ||
1380 | } | ||
1381 | if (indexPtr) *indexPtr = index; | ||
1382 | |||
1383 | return entry; | ||
1384 | } | ||
1385 | |||
1386 | index++; | ||
1387 | } | ||
1388 | |||
1389 | fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n")); | ||
1390 | |||
1391 | return NULL; | ||
1392 | } | ||
1393 | |||
1394 | char * findBootPrefix(void) { | ||
1395 | struct stat sb, sb2; | ||
1396 | |||
1397 | stat("/", &sb); | ||
1398 | #ifdef __ia64__ | ||
1399 | stat("/boot/efi/EFI/redhat/", &sb2); | ||
1400 | #else | ||
1401 | stat("/boot", &sb2); | ||
1402 | #endif | ||
1403 | |||
1404 | if (sb.st_dev == sb2.st_dev) | ||
1405 | return strdup(""); | ||
1406 | |||
1407 | #ifdef __ia64__ | ||
1408 | return strdup("/boot/efi/EFI/redhat/"); | ||
1409 | #else | ||
1410 | return strdup("/boot"); | ||
1411 | #endif | ||
1412 | } | ||
1413 | |||
1414 | void markRemovedImage(struct grubConfig * cfg, const char * image, | ||
1415 | const char * prefix) { | ||
1416 | struct singleEntry * entry; | ||
1417 | |||
1418 | if (!image) return; | ||
1419 | |||
1420 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) | ||
1421 | entry->skip = 1; | ||
1422 | } | ||
1423 | |||
1424 | void setDefaultImage(struct grubConfig * config, int hasNew, | ||
1425 | const char * defaultKernelPath, int newIsDefault, | ||
1426 | const char * prefix, int flags) { | ||
1427 | struct singleEntry * entry, * entry2, * newDefault; | ||
1428 | int i, j; | ||
1429 | |||
1430 | if (newIsDefault) { | ||
1431 | config->defaultImage = 0; | ||
1432 | return; | ||
1433 | } else if (defaultKernelPath) { | ||
1434 | i = 0; | ||
1435 | if (findEntryByPath(config, defaultKernelPath, prefix, &i)) { | ||
1436 | config->defaultImage = i; | ||
1437 | } else { | ||
1438 | config->defaultImage = -1; | ||
1439 | return; | ||
1440 | } | ||
1441 | } | ||
1442 | |||
1443 | /* defaultImage now points to what we'd like to use, but before any order | ||
1444 | changes */ | ||
1445 | if (config->defaultImage == DEFAULT_SAVED) | ||
1446 | /* default is set to saved, we don't want to change it */ | ||
1447 | return; | ||
1448 | |||
1449 | if (config->defaultImage > -1) | ||
1450 | entry = findEntryByIndex(config, config->defaultImage); | ||
1451 | else | ||
1452 | entry = NULL; | ||
1453 | |||
1454 | if (entry && !entry->skip) { | ||
1455 | /* we can preserve the default */ | ||
1456 | if (hasNew) | ||
1457 | config->defaultImage++; | ||
1458 | |||
1459 | /* count the number of entries erased before this one */ | ||
1460 | for (j = 0; j < config->defaultImage; j++) { | ||
1461 | entry2 = findEntryByIndex(config, j); | ||
1462 | if (entry2->skip) config->defaultImage--; | ||
1463 | } | ||
1464 | } else if (hasNew) { | ||
1465 | config->defaultImage = 0; | ||
1466 | } else { | ||
1467 | /* Either we just erased the default (or the default line was bad | ||
1468 | * to begin with) and didn't put a new one in. We'll use the first | ||
1469 | * valid image. */ | ||
1470 | newDefault = findTemplate(config, prefix, &config->defaultImage, 1, | ||
1471 | flags); | ||
1472 | if (!newDefault) | ||
1473 | config->defaultImage = -1; | ||
1474 | } | ||
1475 | } | ||
1476 | |||
1477 | void setFallbackImage(struct grubConfig * config, int hasNew) { | ||
1478 | struct singleEntry * entry, * entry2; | ||
1479 | int j; | ||
1480 | |||
1481 | if (config->fallbackImage == -1) return; | ||
1482 | |||
1483 | entry = findEntryByIndex(config, config->fallbackImage); | ||
1484 | if (!entry || entry->skip) { | ||
1485 | config->fallbackImage = -1; | ||
1486 | return; | ||
1487 | } | ||
1488 | |||
1489 | if (hasNew) | ||
1490 | config->fallbackImage++; | ||
1491 | |||
1492 | /* count the number of entries erased before this one */ | ||
1493 | for (j = 0; j < config->fallbackImage; j++) { | ||
1494 | entry2 = findEntryByIndex(config, j); | ||
1495 | if (entry2->skip) config->fallbackImage--; | ||
1496 | } | ||
1497 | } | ||
1498 | |||
1499 | void displayEntry(struct singleEntry * entry, const char * prefix, int index) { | ||
1500 | struct singleLine * line; | ||
1501 | char * root = NULL; | ||
1502 | int i; | ||
1503 | |||
1504 | printf("index=%d\n", index); | ||
1505 | |||
1506 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1507 | if (!line) { | ||
1508 | printf("non linux entry\n"); | ||
1509 | return; | ||
1510 | } | ||
1511 | |||
1512 | niro | 532 | printf("kernel=%s\n", line->elements[1].item); |
1513 | |||
1514 | if (line->numElements >= 3) { | ||
1515 | printf("args=\""); | ||
1516 | i = 2; | ||
1517 | while (i < line->numElements) { | ||
1518 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
1519 | root = line->elements[i].item + 5; | ||
1520 | } else { | ||
1521 | printf("%s%s", line->elements[i].item, | ||
1522 | line->elements[i].indent); | ||
1523 | } | ||
1524 | |||
1525 | i++; | ||
1526 | } | ||
1527 | printf("\"\n"); | ||
1528 | } else { | ||
1529 | niro | 914 | line = getLineByType(LT_KERNELARGS, entry->lines); |
1530 | niro | 532 | if (line) { |
1531 | char * s; | ||
1532 | |||
1533 | printf("args=\""); | ||
1534 | i = 1; | ||
1535 | while (i < line->numElements) { | ||
1536 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
1537 | root = line->elements[i].item + 5; | ||
1538 | } else { | ||
1539 | s = line->elements[i].item; | ||
1540 | |||
1541 | printf("%s%s", s, line->elements[i].indent); | ||
1542 | } | ||
1543 | |||
1544 | i++; | ||
1545 | } | ||
1546 | |||
1547 | s = line->elements[i - 1].indent; | ||
1548 | printf("\"\n"); | ||
1549 | } | ||
1550 | } | ||
1551 | |||
1552 | if (!root) { | ||
1553 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
1554 | niro | 532 | if (line && line->numElements >= 2) |
1555 | root=line->elements[1].item; | ||
1556 | } | ||
1557 | |||
1558 | if (root) { | ||
1559 | char * s = alloca(strlen(root) + 1); | ||
1560 | |||
1561 | strcpy(s, root); | ||
1562 | if (s[strlen(s) - 1] == '"') | ||
1563 | s[strlen(s) - 1] = '\0'; | ||
1564 | /* make sure the root doesn't have a trailing " */ | ||
1565 | printf("root=%s\n", s); | ||
1566 | } | ||
1567 | |||
1568 | niro | 914 | line = getLineByType(LT_INITRD, entry->lines); |
1569 | niro | 532 | |
1570 | if (line && line->numElements >= 2) { | ||
1571 | printf("initrd=%s", prefix); | ||
1572 | for (i = 1; i < line->numElements; i++) | ||
1573 | printf("%s%s", line->elements[i].item, line->elements[i].indent); | ||
1574 | printf("\n"); | ||
1575 | } | ||
1576 | } | ||
1577 | |||
1578 | int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) { | ||
1579 | FILE * in; | ||
1580 | char buf[1024]; | ||
1581 | char * chptr; | ||
1582 | char * start; | ||
1583 | char * param; | ||
1584 | |||
1585 | niro | 926 | in = fopen("/etc/conf.d/grub", "r"); |
1586 | niro | 532 | if (!in) return 1; |
1587 | |||
1588 | if (lbaPtr) *lbaPtr = 0; | ||
1589 | if (bootPtr) *bootPtr = NULL; | ||
1590 | |||
1591 | while (fgets(buf, sizeof(buf), in)) { | ||
1592 | start = buf; | ||
1593 | while (isspace(*start)) start++; | ||
1594 | if (*start == '#') continue; | ||
1595 | |||
1596 | chptr = strchr(start, '='); | ||
1597 | if (!chptr) continue; | ||
1598 | chptr--; | ||
1599 | while (*chptr && isspace(*chptr)) chptr--; | ||
1600 | chptr++; | ||
1601 | *chptr = '\0'; | ||
1602 | |||
1603 | param = chptr + 1; | ||
1604 | while (*param && isspace(*param)) param++; | ||
1605 | if (*param == '=') { | ||
1606 | param++; | ||
1607 | while (*param && isspace(*param)) param++; | ||
1608 | } | ||
1609 | |||
1610 | chptr = param; | ||
1611 | while (*chptr && !isspace(*chptr)) chptr++; | ||
1612 | *chptr = '\0'; | ||
1613 | |||
1614 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) | ||
1615 | *lbaPtr = 1; | ||
1616 | else if (!strcmp(start, "boot") && bootPtr) | ||
1617 | *bootPtr = strdup(param); | ||
1618 | } | ||
1619 | |||
1620 | fclose(in); | ||
1621 | |||
1622 | return 0; | ||
1623 | } | ||
1624 | |||
1625 | void dumpSysconfigGrub(void) { | ||
1626 | char * boot; | ||
1627 | int lba; | ||
1628 | |||
1629 | if (!parseSysconfigGrub(&lba, &boot)) { | ||
1630 | if (lba) printf("lba\n"); | ||
1631 | if (boot) printf("boot=%s\n", boot); | ||
1632 | } | ||
1633 | } | ||
1634 | |||
1635 | int displayInfo(struct grubConfig * config, char * kernel, | ||
1636 | const char * prefix) { | ||
1637 | int i = 0; | ||
1638 | struct singleEntry * entry; | ||
1639 | struct singleLine * line; | ||
1640 | |||
1641 | entry = findEntryByPath(config, kernel, prefix, &i); | ||
1642 | if (!entry) { | ||
1643 | fprintf(stderr, _("grubby: kernel not found\n")); | ||
1644 | return 1; | ||
1645 | } | ||
1646 | |||
1647 | niro | 926 | /* this is a horrible hack to support /etc/conf.d/grub; there must |
1648 | niro | 532 | be a better way */ |
1649 | if (config->cfi == &grubConfigType) { | ||
1650 | dumpSysconfigGrub(); | ||
1651 | } else { | ||
1652 | niro | 914 | line = getLineByType(LT_BOOT, config->theLines); |
1653 | niro | 532 | if (line && line->numElements >= 1) { |
1654 | printf("boot=%s\n", line->elements[1].item); | ||
1655 | } | ||
1656 | |||
1657 | niro | 914 | line = getLineByType(LT_LBA, config->theLines); |
1658 | niro | 532 | if (line) printf("lba\n"); |
1659 | } | ||
1660 | |||
1661 | displayEntry(entry, prefix, i); | ||
1662 | |||
1663 | i++; | ||
1664 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { | ||
1665 | displayEntry(entry, prefix, i); | ||
1666 | i++; | ||
1667 | } | ||
1668 | |||
1669 | return 0; | ||
1670 | } | ||
1671 | |||
1672 | niro | 914 | struct singleLine * addLineTmpl(struct singleEntry * entry, |
1673 | struct singleLine * tmplLine, | ||
1674 | struct singleLine * prevLine, | ||
1675 | const char * val, | ||
1676 | struct configFileInfo * cfi) | ||
1677 | { | ||
1678 | struct singleLine * newLine = lineDup(tmplLine); | ||
1679 | |||
1680 | if (val) { | ||
1681 | /* override the inherited value with our own. | ||
1682 | * This is a little weak because it only applies to elements[1] | ||
1683 | */ | ||
1684 | if (newLine->numElements > 1) | ||
1685 | removeElement(newLine, 1); | ||
1686 | insertElement(newLine, val, 1, cfi); | ||
1687 | |||
1688 | /* but try to keep the rootspec from the template... sigh */ | ||
1689 | if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) { | ||
1690 | char * rootspec = getRootSpecifier(tmplLine->elements[1].item); | ||
1691 | if (rootspec != NULL) { | ||
1692 | free(newLine->elements[1].item); | ||
1693 | newLine->elements[1].item = | ||
1694 | sdupprintf("%s%s", rootspec, val); | ||
1695 | } | ||
1696 | } | ||
1697 | } | ||
1698 | |||
1699 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? | ||
1700 | newLine->elements[0].item : ""); | ||
1701 | |||
1702 | if (!entry->lines) { | ||
1703 | /* first one on the list */ | ||
1704 | entry->lines = newLine; | ||
1705 | } else if (prevLine) { | ||
1706 | /* add after prevLine */ | ||
1707 | newLine->next = prevLine->next; | ||
1708 | prevLine->next = newLine; | ||
1709 | } | ||
1710 | |||
1711 | return newLine; | ||
1712 | } | ||
1713 | |||
1714 | niro | 532 | /* val may be NULL */ |
1715 | struct singleLine * addLine(struct singleEntry * entry, | ||
1716 | struct configFileInfo * cfi, | ||
1717 | niro | 914 | enum lineType_e type, char * defaultIndent, |
1718 | const char * val) { | ||
1719 | niro | 532 | struct singleLine * line, * prev; |
1720 | niro | 914 | struct keywordTypes * kw; |
1721 | struct singleLine tmpl; | ||
1722 | niro | 532 | |
1723 | niro | 914 | /* NB: This function shouldn't allocate items on the heap, rather on the |
1724 | * stack since it calls addLineTmpl which will make copies. | ||
1725 | */ | ||
1726 | niro | 532 | |
1727 | niro | 914 | if (type == LT_TITLE && cfi->titleBracketed) { |
1728 | /* we're doing a bracketed title (zipl) */ | ||
1729 | tmpl.type = type; | ||
1730 | tmpl.numElements = 1; | ||
1731 | tmpl.elements = alloca(sizeof(*tmpl.elements)); | ||
1732 | tmpl.elements[0].item = alloca(strlen(val)+3); | ||
1733 | sprintf(tmpl.elements[0].item, "[%s]", val); | ||
1734 | tmpl.elements[0].indent = ""; | ||
1735 | val = NULL; | ||
1736 | } else { | ||
1737 | kw = getKeywordByType(type, cfi); | ||
1738 | if (!kw) abort(); | ||
1739 | tmpl.type = type; | ||
1740 | tmpl.numElements = val ? 2 : 1; | ||
1741 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
1742 | tmpl.elements[0].item = kw->key; | ||
1743 | tmpl.elements[0].indent = alloca(2); | ||
1744 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
1745 | if (val) { | ||
1746 | tmpl.elements[1].item = (char *)val; | ||
1747 | tmpl.elements[1].indent = ""; | ||
1748 | } | ||
1749 | } | ||
1750 | |||
1751 | niro | 532 | /* The last non-empty line gives us the indention to us and the line |
1752 | to insert after. Note that comments are considered empty lines, which | ||
1753 | may not be ideal? If there are no lines or we are looking at the | ||
1754 | first line, we use defaultIndent (the first line is normally indented | ||
1755 | differently from the rest) */ | ||
1756 | niro | 914 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
1757 | if (line->numElements) prev = line; | ||
1758 | /* fall back on the last line if prev isn't otherwise set */ | ||
1759 | if (!line->next && !prev) prev = line; | ||
1760 | niro | 532 | } |
1761 | |||
1762 | niro | 914 | if (prev == entry->lines) |
1763 | tmpl.indent = defaultIndent ?: ""; | ||
1764 | else | ||
1765 | tmpl.indent = prev->indent; | ||
1766 | niro | 532 | |
1767 | niro | 914 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
1768 | niro | 532 | } |
1769 | |||
1770 | void removeLine(struct singleEntry * entry, struct singleLine * line) { | ||
1771 | struct singleLine * prev; | ||
1772 | int i; | ||
1773 | |||
1774 | for (i = 0; i < line->numElements; i++) { | ||
1775 | free(line->elements[i].item); | ||
1776 | free(line->elements[i].indent); | ||
1777 | } | ||
1778 | free(line->elements); | ||
1779 | free(line->indent); | ||
1780 | |||
1781 | if (line == entry->lines) { | ||
1782 | entry->lines = line->next; | ||
1783 | } else { | ||
1784 | prev = entry->lines; | ||
1785 | while (prev->next != line) prev = prev->next; | ||
1786 | prev->next = line->next; | ||
1787 | } | ||
1788 | |||
1789 | free(line); | ||
1790 | } | ||
1791 | |||
1792 | niro | 914 | static void insertElement(struct singleLine * line, |
1793 | const char * item, int insertHere, | ||
1794 | struct configFileInfo * cfi) | ||
1795 | { | ||
1796 | struct keywordTypes * kw; | ||
1797 | char indent[2] = ""; | ||
1798 | |||
1799 | /* sanity check */ | ||
1800 | if (insertHere > line->numElements) { | ||
1801 | dbgPrintf("insertElement() adjusting insertHere from %d to %d\n", | ||
1802 | insertHere, line->numElements); | ||
1803 | insertHere = line->numElements; | ||
1804 | } | ||
1805 | |||
1806 | line->elements = realloc(line->elements, (line->numElements + 1) * | ||
1807 | sizeof(*line->elements)); | ||
1808 | memmove(&line->elements[insertHere+1], | ||
1809 | &line->elements[insertHere], | ||
1810 | (line->numElements - insertHere) * | ||
1811 | sizeof(*line->elements)); | ||
1812 | line->elements[insertHere].item = strdup(item); | ||
1813 | |||
1814 | kw = getKeywordByType(line->type, cfi); | ||
1815 | |||
1816 | if (line->numElements == 0) { | ||
1817 | indent[0] = '\0'; | ||
1818 | } else if (insertHere == 0) { | ||
1819 | indent[0] = kw->nextChar; | ||
1820 | } else if (kw->separatorChar != '\0') { | ||
1821 | indent[0] = kw->separatorChar; | ||
1822 | } else { | ||
1823 | indent[0] = ' '; | ||
1824 | } | ||
1825 | |||
1826 | if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') { | ||
1827 | /* move the end-of-line forward */ | ||
1828 | line->elements[insertHere].indent = | ||
1829 | line->elements[insertHere-1].indent; | ||
1830 | line->elements[insertHere-1].indent = strdup(indent); | ||
1831 | } else { | ||
1832 | line->elements[insertHere].indent = strdup(indent); | ||
1833 | } | ||
1834 | |||
1835 | line->numElements++; | ||
1836 | |||
1837 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", | ||
1838 | line->elements[0].item, | ||
1839 | line->elements[insertHere].item, | ||
1840 | line->elements[insertHere].indent, | ||
1841 | insertHere); | ||
1842 | } | ||
1843 | |||
1844 | static void removeElement(struct singleLine * line, int removeHere) { | ||
1845 | int i; | ||
1846 | |||
1847 | /* sanity check */ | ||
1848 | if (removeHere >= line->numElements) return; | ||
1849 | |||
1850 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, | ||
1851 | removeHere, line->elements[removeHere].item); | ||
1852 | |||
1853 | free(line->elements[removeHere].item); | ||
1854 | |||
1855 | if (removeHere > 1) { | ||
1856 | /* previous argument gets this argument's post-indentation */ | ||
1857 | free(line->elements[removeHere-1].indent); | ||
1858 | line->elements[removeHere-1].indent = | ||
1859 | line->elements[removeHere].indent; | ||
1860 | } else { | ||
1861 | free(line->elements[removeHere].indent); | ||
1862 | } | ||
1863 | |||
1864 | /* now collapse the array, but don't bother to realloc smaller */ | ||
1865 | for (i = removeHere; i < line->numElements - 1; i++) | ||
1866 | line->elements[i] = line->elements[i + 1]; | ||
1867 | |||
1868 | line->numElements--; | ||
1869 | } | ||
1870 | |||
1871 | niro | 532 | int argMatch(const char * one, const char * two) { |
1872 | char * first, * second; | ||
1873 | char * chptr; | ||
1874 | |||
1875 | first = strcpy(alloca(strlen(one) + 1), one); | ||
1876 | second = strcpy(alloca(strlen(two) + 1), two); | ||
1877 | |||
1878 | chptr = strchr(first, '='); | ||
1879 | if (chptr) *chptr = '\0'; | ||
1880 | |||
1881 | chptr = strchr(second, '='); | ||
1882 | if (chptr) *chptr = '\0'; | ||
1883 | |||
1884 | return strcmp(first, second); | ||
1885 | } | ||
1886 | |||
1887 | int updateActualImage(struct grubConfig * cfg, const char * image, | ||
1888 | const char * prefix, const char * addArgs, | ||
1889 | const char * removeArgs, int multibootArgs) { | ||
1890 | struct singleEntry * entry; | ||
1891 | struct singleLine * line, * rootLine; | ||
1892 | int index = 0; | ||
1893 | niro | 914 | int i, k; |
1894 | niro | 532 | const char ** newArgs, ** oldArgs; |
1895 | const char ** arg; | ||
1896 | niro | 914 | int useKernelArgs, useRoot; |
1897 | niro | 532 | int firstElement; |
1898 | int *usedElements, *usedArgs; | ||
1899 | niro | 914 | int doreplace; |
1900 | niro | 532 | |
1901 | if (!image) return 0; | ||
1902 | |||
1903 | if (!addArgs) { | ||
1904 | newArgs = malloc(sizeof(*newArgs)); | ||
1905 | *newArgs = NULL; | ||
1906 | } else { | ||
1907 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { | ||
1908 | fprintf(stderr, | ||
1909 | _("grubby: error separating arguments '%s'\n"), addArgs); | ||
1910 | return 1; | ||
1911 | } | ||
1912 | } | ||
1913 | |||
1914 | if (!removeArgs) { | ||
1915 | oldArgs = malloc(sizeof(*oldArgs)); | ||
1916 | *oldArgs = NULL; | ||
1917 | } else { | ||
1918 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { | ||
1919 | fprintf(stderr, | ||
1920 | _("grubby: error separating arguments '%s'\n"), removeArgs); | ||
1921 | free(newArgs); | ||
1922 | return 1; | ||
1923 | } | ||
1924 | } | ||
1925 | |||
1926 | |||
1927 | niro | 914 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
1928 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); | ||
1929 | niro | 532 | |
1930 | niro | 914 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
1931 | && !multibootArgs); | ||
1932 | niro | 532 | |
1933 | niro | 914 | for (k = 0, arg = newArgs; *arg; arg++, k++) ; |
1934 | usedArgs = calloc(k, sizeof(*usedArgs)); | ||
1935 | niro | 532 | |
1936 | niro | 914 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
1937 | niro | 532 | |
1938 | niro | 914 | if (multibootArgs && !entry->multiboot) |
1939 | continue; | ||
1940 | niro | 532 | |
1941 | niro | 914 | /* Determine where to put the args. If this config supports |
1942 | * LT_KERNELARGS, use that. Otherwise use | ||
1943 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. | ||
1944 | */ | ||
1945 | if (useKernelArgs) { | ||
1946 | line = getLineByType(LT_KERNELARGS, entry->lines); | ||
1947 | if (!line) { | ||
1948 | /* no LT_KERNELARGS, need to add it */ | ||
1949 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, | ||
1950 | cfg->secondaryIndent, NULL); | ||
1951 | } | ||
1952 | firstElement = 1; | ||
1953 | niro | 532 | |
1954 | niro | 914 | } else if (multibootArgs) { |
1955 | line = getLineByType(LT_HYPER, entry->lines); | ||
1956 | if (!line) { | ||
1957 | /* a multiboot entry without LT_HYPER? */ | ||
1958 | continue; | ||
1959 | } | ||
1960 | firstElement = 2; | ||
1961 | |||
1962 | } else { | ||
1963 | line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines); | ||
1964 | if (!line) { | ||
1965 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ | ||
1966 | continue; | ||
1967 | } | ||
1968 | firstElement = 2; | ||
1969 | niro | 532 | } |
1970 | |||
1971 | niro | 914 | /* handle the elilo case which does: |
1972 | * append="hypervisor args -- kernel args" | ||
1973 | */ | ||
1974 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { | ||
1975 | /* this is a multiboot entry, make sure there's | ||
1976 | * -- on the args line | ||
1977 | */ | ||
1978 | for (i = firstElement; i < line->numElements; i++) { | ||
1979 | if (!strcmp(line->elements[i].item, "--")) | ||
1980 | break; | ||
1981 | } | ||
1982 | if (i == line->numElements) { | ||
1983 | /* assume all existing args are kernel args, | ||
1984 | * prepend -- to make it official | ||
1985 | */ | ||
1986 | insertElement(line, "--", firstElement, cfg->cfi); | ||
1987 | i = firstElement; | ||
1988 | } | ||
1989 | if (!multibootArgs) { | ||
1990 | /* kernel args start after the -- */ | ||
1991 | firstElement = i + 1; | ||
1992 | } | ||
1993 | } else if (cfg->cfi->mbConcatArgs) { | ||
1994 | /* this is a non-multiboot entry, remove hyper args */ | ||
1995 | for (i = firstElement; i < line->numElements; i++) { | ||
1996 | if (!strcmp(line->elements[i].item, "--")) | ||
1997 | break; | ||
1998 | } | ||
1999 | if (i < line->numElements) { | ||
2000 | /* remove args up to -- */ | ||
2001 | while (strcmp(line->elements[firstElement].item, "--")) | ||
2002 | removeElement(line, firstElement); | ||
2003 | /* remove -- */ | ||
2004 | removeElement(line, firstElement); | ||
2005 | } | ||
2006 | niro | 532 | } |
2007 | |||
2008 | niro | 914 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
2009 | niro | 532 | |
2010 | niro | 914 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
2011 | if (usedArgs[k]) continue; | ||
2012 | |||
2013 | doreplace = 1; | ||
2014 | niro | 532 | for (i = firstElement; i < line->numElements; i++) { |
2015 | niro | 914 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
2016 | !strcmp(line->elements[i].item, "--")) | ||
2017 | { | ||
2018 | /* reached the end of hyper args, insert here */ | ||
2019 | doreplace = 0; | ||
2020 | break; | ||
2021 | } | ||
2022 | niro | 532 | if (usedElements[i]) |
2023 | continue; | ||
2024 | if (!argMatch(line->elements[i].item, *arg)) { | ||
2025 | usedElements[i]=1; | ||
2026 | usedArgs[k]=1; | ||
2027 | break; | ||
2028 | } | ||
2029 | } | ||
2030 | |||
2031 | niro | 914 | if (i < line->numElements && doreplace) { |
2032 | /* direct replacement */ | ||
2033 | niro | 532 | free(line->elements[i].item); |
2034 | line->elements[i].item = strdup(*arg); | ||
2035 | |||
2036 | niro | 914 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
2037 | /* root= replacement */ | ||
2038 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
2039 | if (rootLine) { | ||
2040 | free(rootLine->elements[1].item); | ||
2041 | rootLine->elements[1].item = strdup(*arg + 5); | ||
2042 | niro | 532 | } else { |
2043 | niro | 914 | rootLine = addLine(entry, cfg->cfi, LT_ROOT, |
2044 | cfg->secondaryIndent, *arg + 5); | ||
2045 | niro | 532 | } |
2046 | niro | 914 | } |
2047 | niro | 532 | |
2048 | niro | 914 | else { |
2049 | /* insert/append */ | ||
2050 | insertElement(line, *arg, i, cfg->cfi); | ||
2051 | usedElements = realloc(usedElements, line->numElements * | ||
2052 | sizeof(*usedElements)); | ||
2053 | memmove(&usedElements[i + 1], &usedElements[i], | ||
2054 | line->numElements - i - 1); | ||
2055 | usedElements[i] = 1; | ||
2056 | niro | 532 | |
2057 | /* if we updated a root= here even though there is a | ||
2058 | LT_ROOT available we need to remove the LT_ROOT entry | ||
2059 | (this will happen if we switch from a device to a label) */ | ||
2060 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
2061 | niro | 914 | rootLine = getLineByType(LT_ROOT, entry->lines); |
2062 | if (rootLine) | ||
2063 | niro | 532 | removeLine(entry, rootLine); |
2064 | } | ||
2065 | } | ||
2066 | } | ||
2067 | |||
2068 | free(usedElements); | ||
2069 | |||
2070 | for (arg = oldArgs; *arg; arg++) { | ||
2071 | niro | 914 | for (i = firstElement; i < line->numElements; i++) { |
2072 | if (multibootArgs && cfg->cfi->mbConcatArgs && | ||
2073 | !strcmp(line->elements[i].item, "--")) | ||
2074 | /* reached the end of hyper args, stop here */ | ||
2075 | niro | 532 | break; |
2076 | niro | 914 | if (!argMatch(line->elements[i].item, *arg)) { |
2077 | removeElement(line, i); | ||
2078 | break; | ||
2079 | niro | 532 | } |
2080 | } | ||
2081 | niro | 914 | /* handle removing LT_ROOT line too */ |
2082 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
2083 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
2084 | if (rootLine) | ||
2085 | removeLine(entry, rootLine); | ||
2086 | } | ||
2087 | niro | 532 | } |
2088 | |||
2089 | if (line->numElements == 1) { | ||
2090 | /* don't need the line at all (note it has to be a | ||
2091 | LT_KERNELARGS for this to happen */ | ||
2092 | removeLine(entry, line); | ||
2093 | } | ||
2094 | } | ||
2095 | |||
2096 | free(usedArgs); | ||
2097 | free(newArgs); | ||
2098 | free(oldArgs); | ||
2099 | |||
2100 | return 0; | ||
2101 | } | ||
2102 | |||
2103 | int updateImage(struct grubConfig * cfg, const char * image, | ||
2104 | const char * prefix, const char * addArgs, | ||
2105 | const char * removeArgs, | ||
2106 | const char * addMBArgs, const char * removeMBArgs) { | ||
2107 | int rc = 0; | ||
2108 | |||
2109 | if (!image) return rc; | ||
2110 | |||
2111 | /* update the main args first... */ | ||
2112 | if (addArgs || removeArgs) | ||
2113 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0); | ||
2114 | if (rc) return rc; | ||
2115 | |||
2116 | /* and now any multiboot args */ | ||
2117 | if (addMBArgs || removeMBArgs) | ||
2118 | rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1); | ||
2119 | return rc; | ||
2120 | } | ||
2121 | |||
2122 | int checkDeviceBootloader(const char * device, const unsigned char * boot) { | ||
2123 | int fd; | ||
2124 | unsigned char bootSect[512]; | ||
2125 | int offset; | ||
2126 | |||
2127 | fd = open(device, O_RDONLY); | ||
2128 | if (fd < 0) { | ||
2129 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
2130 | device, strerror(errno)); | ||
2131 | return 1; | ||
2132 | } | ||
2133 | |||
2134 | if (read(fd, bootSect, 512) != 512) { | ||
2135 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2136 | device, strerror(errno)); | ||
2137 | return 1; | ||
2138 | } | ||
2139 | close(fd); | ||
2140 | |||
2141 | /* first three bytes should match, a jmp short should be in there */ | ||
2142 | if (memcmp(boot, bootSect, 3)) | ||
2143 | return 0; | ||
2144 | |||
2145 | if (boot[1] == 0xeb) { | ||
2146 | offset = boot[2] + 2; | ||
2147 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { | ||
2148 | offset = (boot[3] << 8) + boot[2] + 2; | ||
2149 | } else if (boot[0] == 0xeb) { | ||
2150 | offset = boot[1] + 2; | ||
2151 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { | ||
2152 | offset = (boot[2] << 8) + boot[1] + 2; | ||
2153 | } else { | ||
2154 | return 0; | ||
2155 | } | ||
2156 | |||
2157 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) | ||
2158 | return 0; | ||
2159 | |||
2160 | return 2; | ||
2161 | } | ||
2162 | |||
2163 | int checkLiloOnRaid(char * mdDev, const unsigned char * boot) { | ||
2164 | int fd; | ||
2165 | char buf[65536]; | ||
2166 | char * end; | ||
2167 | char * chptr; | ||
2168 | char * chptr2; | ||
2169 | int rc; | ||
2170 | |||
2171 | /* it's on raid; we need to parse /proc/mdstat and check all of the | ||
2172 | *raw* devices listed in there */ | ||
2173 | |||
2174 | if (!strncmp(mdDev, "/dev/", 5)) | ||
2175 | mdDev += 5; | ||
2176 | |||
2177 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { | ||
2178 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), | ||
2179 | strerror(errno)); | ||
2180 | return 2; | ||
2181 | } | ||
2182 | |||
2183 | rc = read(fd, buf, sizeof(buf) - 1); | ||
2184 | if (rc < 0 || rc == (sizeof(buf) - 1)) { | ||
2185 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), | ||
2186 | strerror(errno)); | ||
2187 | close(fd); | ||
2188 | return 2; | ||
2189 | } | ||
2190 | close(fd); | ||
2191 | buf[rc] = '\0'; | ||
2192 | |||
2193 | chptr = buf; | ||
2194 | while (*chptr) { | ||
2195 | end = strchr(chptr, '\n'); | ||
2196 | if (!end) break; | ||
2197 | *end = '\0'; | ||
2198 | |||
2199 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && | ||
2200 | chptr[strlen(mdDev)] == ' ') { | ||
2201 | |||
2202 | /* found the device */ | ||
2203 | while (*chptr && *chptr != ':') chptr++; | ||
2204 | chptr++; | ||
2205 | while (*chptr && isspace(*chptr)) chptr++; | ||
2206 | |||
2207 | /* skip the "active" bit */ | ||
2208 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2209 | while (*chptr && isspace(*chptr)) chptr++; | ||
2210 | |||
2211 | /* skip the raid level */ | ||
2212 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2213 | while (*chptr && isspace(*chptr)) chptr++; | ||
2214 | |||
2215 | /* everything else is partition stuff */ | ||
2216 | while (*chptr) { | ||
2217 | chptr2 = chptr; | ||
2218 | while (*chptr2 && *chptr2 != '[') chptr2++; | ||
2219 | if (!*chptr2) break; | ||
2220 | |||
2221 | /* yank off the numbers at the end */ | ||
2222 | chptr2--; | ||
2223 | while (isdigit(*chptr2) && chptr2 > chptr) chptr2--; | ||
2224 | chptr2++; | ||
2225 | *chptr2 = '\0'; | ||
2226 | |||
2227 | /* Better, now we need the /dev/ back. We're done with | ||
2228 | * everything before this point, so we can just put | ||
2229 | * the /dev/ part there. There will always be room. */ | ||
2230 | memcpy(chptr - 5, "/dev/", 5); | ||
2231 | rc = checkDeviceBootloader(chptr - 5, boot); | ||
2232 | if (rc != 2) { | ||
2233 | return rc; | ||
2234 | } | ||
2235 | |||
2236 | chptr = chptr2 + 1; | ||
2237 | /* skip the [11] bit */ | ||
2238 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2239 | /* and move to the next one */ | ||
2240 | while (*chptr && isspace(*chptr)) chptr++; | ||
2241 | } | ||
2242 | |||
2243 | /* we're good to go */ | ||
2244 | return 2; | ||
2245 | } | ||
2246 | |||
2247 | chptr = end + 1; | ||
2248 | } | ||
2249 | |||
2250 | fprintf(stderr, | ||
2251 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), | ||
2252 | mdDev); | ||
2253 | return 0; | ||
2254 | } | ||
2255 | |||
2256 | int checkForLilo(struct grubConfig * config) { | ||
2257 | int fd; | ||
2258 | unsigned char boot[512]; | ||
2259 | struct singleLine * line; | ||
2260 | |||
2261 | for (line = config->theLines; line; line = line->next) | ||
2262 | if (line->type == LT_BOOT) break; | ||
2263 | |||
2264 | if (!line) { | ||
2265 | fprintf(stderr, | ||
2266 | _("grubby: no boot line found in lilo configuration\n")); | ||
2267 | return 1; | ||
2268 | } | ||
2269 | |||
2270 | if (line->numElements != 2) return 1; | ||
2271 | |||
2272 | fd = open("/boot/boot.b", O_RDONLY); | ||
2273 | if (fd < 0) { | ||
2274 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
2275 | "/boot/boot.b", strerror(errno)); | ||
2276 | return 1; | ||
2277 | } | ||
2278 | |||
2279 | if (read(fd, boot, 512) != 512) { | ||
2280 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2281 | "/boot/boot.b", strerror(errno)); | ||
2282 | return 1; | ||
2283 | } | ||
2284 | close(fd); | ||
2285 | |||
2286 | if (!strncmp("/dev/md", line->elements[1].item, 7)) | ||
2287 | return checkLiloOnRaid(line->elements[1].item, boot); | ||
2288 | |||
2289 | return checkDeviceBootloader(line->elements[1].item, boot); | ||
2290 | } | ||
2291 | |||
2292 | int checkForGrub(struct grubConfig * config) { | ||
2293 | int fd; | ||
2294 | unsigned char bootSect[512]; | ||
2295 | char * boot; | ||
2296 | |||
2297 | if (parseSysconfigGrub(NULL, &boot)) | ||
2298 | return 0; | ||
2299 | |||
2300 | /* assume grub is not installed -- not an error condition */ | ||
2301 | if (!boot) | ||
2302 | return 0; | ||
2303 | |||
2304 | fd = open("/boot/grub/stage1", O_RDONLY); | ||
2305 | if (fd < 0) | ||
2306 | /* this doesn't exist if grub hasn't been installed */ | ||
2307 | return 0; | ||
2308 | |||
2309 | if (read(fd, bootSect, 512) != 512) { | ||
2310 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2311 | "/boot/grub/stage1", strerror(errno)); | ||
2312 | niro | 914 | close(fd); |
2313 | niro | 532 | return 1; |
2314 | } | ||
2315 | close(fd); | ||
2316 | |||
2317 | return checkDeviceBootloader(boot, bootSect); | ||
2318 | } | ||
2319 | |||
2320 | niro | 914 | int checkForExtLinux(struct grubConfig * config) { |
2321 | int fd; | ||
2322 | unsigned char bootSect[512]; | ||
2323 | char * boot; | ||
2324 | char executable[] = "/boot/extlinux/extlinux"; | ||
2325 | |||
2326 | printf("entered: checkForExtLinux()\n"); | ||
2327 | |||
2328 | if (parseSysconfigGrub(NULL, &boot)) | ||
2329 | return 0; | ||
2330 | |||
2331 | /* assume grub is not installed -- not an error condition */ | ||
2332 | if (!boot) | ||
2333 | return 0; | ||
2334 | |||
2335 | fd = open(executable, O_RDONLY); | ||
2336 | if (fd < 0) | ||
2337 | /* this doesn't exist if grub hasn't been installed */ | ||
2338 | return 0; | ||
2339 | |||
2340 | if (read(fd, bootSect, 512) != 512) { | ||
2341 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2342 | executable, strerror(errno)); | ||
2343 | return 1; | ||
2344 | } | ||
2345 | close(fd); | ||
2346 | |||
2347 | return checkDeviceBootloader(boot, bootSect); | ||
2348 | } | ||
2349 | |||
2350 | niro | 532 | static char * getRootSpecifier(char * str) { |
2351 | char * idx, * rootspec = NULL; | ||
2352 | |||
2353 | if (*str == '(') { | ||
2354 | idx = rootspec = strdup(str); | ||
2355 | while(*idx && (*idx != ')') && (!isspace(*idx))) idx++; | ||
2356 | *(++idx) = '\0'; | ||
2357 | } | ||
2358 | return rootspec; | ||
2359 | } | ||
2360 | |||
2361 | niro | 914 | static char * getInitrdVal(struct grubConfig * config, |
2362 | const char * prefix, struct singleLine *tmplLine, | ||
2363 | const char * newKernelInitrd, | ||
2364 | char ** extraInitrds, int extraInitrdCount) | ||
2365 | { | ||
2366 | char *initrdVal, *end; | ||
2367 | int i; | ||
2368 | size_t totalSize; | ||
2369 | size_t prefixLen; | ||
2370 | char separatorChar; | ||
2371 | |||
2372 | prefixLen = strlen(prefix); | ||
2373 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */; | ||
2374 | |||
2375 | for (i = 0; i < extraInitrdCount; i++) { | ||
2376 | totalSize += sizeof(separatorChar); | ||
2377 | totalSize += strlen(extraInitrds[i]) - prefixLen; | ||
2378 | } | ||
2379 | |||
2380 | initrdVal = end = malloc(totalSize); | ||
2381 | |||
2382 | end = stpcpy (end, newKernelInitrd + prefixLen); | ||
2383 | |||
2384 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; | ||
2385 | for (i = 0; i < extraInitrdCount; i++) { | ||
2386 | const char *extraInitrd; | ||
2387 | int j; | ||
2388 | |||
2389 | extraInitrd = extraInitrds[i] + prefixLen; | ||
2390 | /* Don't add entries that are already there */ | ||
2391 | if (tmplLine != NULL) { | ||
2392 | for (j = 2; j < tmplLine->numElements; j++) | ||
2393 | if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0) | ||
2394 | break; | ||
2395 | |||
2396 | if (j != tmplLine->numElements) | ||
2397 | continue; | ||
2398 | } | ||
2399 | |||
2400 | *end++ = separatorChar; | ||
2401 | end = stpcpy(end, extraInitrd); | ||
2402 | } | ||
2403 | |||
2404 | return initrdVal; | ||
2405 | } | ||
2406 | |||
2407 | niro | 532 | int addNewKernel(struct grubConfig * config, struct singleEntry * template, |
2408 | const char * prefix, | ||
2409 | char * newKernelPath, char * newKernelTitle, | ||
2410 | char * newKernelArgs, char * newKernelInitrd, | ||
2411 | niro | 914 | char ** extraInitrds, int extraInitrdCount, |
2412 | niro | 532 | char * newMBKernel, char * newMBKernelArgs) { |
2413 | struct singleEntry * new; | ||
2414 | niro | 914 | struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL; |
2415 | niro | 532 | int needs; |
2416 | char * chptr; | ||
2417 | |||
2418 | if (!newKernelPath) return 0; | ||
2419 | |||
2420 | /* if the newKernelTitle is too long silently munge it into something | ||
2421 | * we can live with. truncating is first check, then we'll just mess with | ||
2422 | * it until it looks better */ | ||
2423 | if (config->cfi->maxTitleLength && | ||
2424 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { | ||
2425 | char * buf = alloca(config->cfi->maxTitleLength + 7); | ||
2426 | char * numBuf = alloca(config->cfi->maxTitleLength + 1); | ||
2427 | int i = 1; | ||
2428 | |||
2429 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle); | ||
2430 | while (findEntryByPath(config, buf, NULL, NULL)) { | ||
2431 | sprintf(numBuf, "%d", i++); | ||
2432 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); | ||
2433 | } | ||
2434 | |||
2435 | newKernelTitle = buf + 6; | ||
2436 | } | ||
2437 | |||
2438 | new = malloc(sizeof(*new)); | ||
2439 | new->skip = 0; | ||
2440 | new->multiboot = 0; | ||
2441 | new->next = config->entries; | ||
2442 | new->lines = NULL; | ||
2443 | config->entries = new; | ||
2444 | |||
2445 | /* copy/update from the template */ | ||
2446 | niro | 914 | needs = NEED_KERNEL | NEED_TITLE; |
2447 | if (newKernelInitrd) | ||
2448 | needs |= NEED_INITRD; | ||
2449 | niro | 532 | if (newMBKernel) { |
2450 | niro | 914 | needs |= NEED_MB; |
2451 | niro | 532 | new->multiboot = 1; |
2452 | } | ||
2453 | |||
2454 | if (template) { | ||
2455 | niro | 914 | for (masterLine = template->lines; |
2456 | masterLine && (tmplLine = lineDup(masterLine)); | ||
2457 | lineFree(tmplLine), masterLine = masterLine->next) | ||
2458 | { | ||
2459 | dbgPrintf("addNewKernel processing %d\n", tmplLine->type); | ||
2460 | niro | 532 | |
2461 | /* skip comments */ | ||
2462 | chptr = tmplLine->indent; | ||
2463 | while (*chptr && isspace(*chptr)) chptr++; | ||
2464 | if (*chptr == '#') continue; | ||
2465 | |||
2466 | niro | 914 | if (tmplLine->type == LT_KERNEL && |
2467 | tmplLine->numElements >= 2) { | ||
2468 | if (!template->multiboot && (needs & NEED_MB)) { | ||
2469 | /* it's not a multiboot template and this is the kernel | ||
2470 | * line. Try to be intelligent about inserting the | ||
2471 | * hypervisor at the same time. | ||
2472 | */ | ||
2473 | if (config->cfi->mbHyperFirst) { | ||
2474 | /* insert the hypervisor first */ | ||
2475 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
2476 | tmplLine->indent, | ||
2477 | newMBKernel + strlen(prefix)); | ||
2478 | /* set up for adding the kernel line */ | ||
2479 | free(tmplLine->indent); | ||
2480 | tmplLine->indent = strdup(config->secondaryIndent); | ||
2481 | needs &= ~NEED_MB; | ||
2482 | } | ||
2483 | if (needs & NEED_KERNEL) { | ||
2484 | /* use addLineTmpl to preserve line elements, | ||
2485 | * otherwise we could just call addLine. Unfortunately | ||
2486 | * this means making some changes to the template | ||
2487 | * such as the indent change above and the type | ||
2488 | * change below. | ||
2489 | */ | ||
2490 | struct keywordTypes * mbm_kw = | ||
2491 | getKeywordByType(LT_MBMODULE, config->cfi); | ||
2492 | if (mbm_kw) { | ||
2493 | tmplLine->type = LT_MBMODULE; | ||
2494 | free(tmplLine->elements[0].item); | ||
2495 | tmplLine->elements[0].item = strdup(mbm_kw->key); | ||
2496 | } | ||
2497 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2498 | newKernelPath + strlen(prefix), config->cfi); | ||
2499 | needs &= ~NEED_KERNEL; | ||
2500 | } | ||
2501 | if (needs & NEED_MB) { /* !mbHyperFirst */ | ||
2502 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
2503 | config->secondaryIndent, | ||
2504 | newMBKernel + strlen(prefix)); | ||
2505 | needs &= ~NEED_MB; | ||
2506 | } | ||
2507 | } else if (needs & NEED_KERNEL) { | ||
2508 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2509 | newKernelPath + strlen(prefix), config->cfi); | ||
2510 | needs &= ~NEED_KERNEL; | ||
2511 | } | ||
2512 | niro | 532 | |
2513 | niro | 914 | } else if (tmplLine->type == LT_HYPER && |
2514 | tmplLine->numElements >= 2) { | ||
2515 | if (needs & NEED_MB) { | ||
2516 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2517 | newMBKernel + strlen(prefix), config->cfi); | ||
2518 | needs &= ~NEED_MB; | ||
2519 | } | ||
2520 | niro | 532 | |
2521 | niro | 914 | } else if (tmplLine->type == LT_MBMODULE && |
2522 | tmplLine->numElements >= 2) { | ||
2523 | if (new->multiboot) { | ||
2524 | if (needs & NEED_KERNEL) { | ||
2525 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2526 | newKernelPath + | ||
2527 | strlen(prefix), config->cfi); | ||
2528 | needs &= ~NEED_KERNEL; | ||
2529 | } else if (config->cfi->mbInitRdIsModule && | ||
2530 | (needs & NEED_INITRD)) { | ||
2531 | char *initrdVal; | ||
2532 | initrdVal = getInitrdVal(config, prefix, tmplLine, | ||
2533 | newKernelInitrd, extraInitrds, | ||
2534 | extraInitrdCount); | ||
2535 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2536 | initrdVal, config->cfi); | ||
2537 | free(initrdVal); | ||
2538 | needs &= ~NEED_INITRD; | ||
2539 | } | ||
2540 | } else if (needs & NEED_KERNEL) { | ||
2541 | /* template is multi but new is not, | ||
2542 | * insert the kernel in the first module slot | ||
2543 | */ | ||
2544 | tmplLine->type = LT_KERNEL; | ||
2545 | free(tmplLine->elements[0].item); | ||
2546 | tmplLine->elements[0].item = | ||
2547 | strdup(getKeywordByType(LT_KERNEL, config->cfi)->key); | ||
2548 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2549 | newKernelPath + strlen(prefix), config->cfi); | ||
2550 | needs &= ~NEED_KERNEL; | ||
2551 | } else if (needs & NEED_INITRD) { | ||
2552 | char *initrdVal; | ||
2553 | /* template is multi but new is not, | ||
2554 | * insert the initrd in the second module slot | ||
2555 | */ | ||
2556 | tmplLine->type = LT_INITRD; | ||
2557 | free(tmplLine->elements[0].item); | ||
2558 | tmplLine->elements[0].item = | ||
2559 | strdup(getKeywordByType(LT_INITRD, config->cfi)->key); | ||
2560 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
2561 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
2562 | free(initrdVal); | ||
2563 | needs &= ~NEED_INITRD; | ||
2564 | } | ||
2565 | niro | 532 | |
2566 | } else if (tmplLine->type == LT_INITRD && | ||
2567 | niro | 914 | tmplLine->numElements >= 2) { |
2568 | if (needs & NEED_INITRD && | ||
2569 | new->multiboot && !template->multiboot && | ||
2570 | config->cfi->mbInitRdIsModule) { | ||
2571 | /* make sure we don't insert the module initrd | ||
2572 | * before the module kernel... if we don't do it here, | ||
2573 | * it will be inserted following the template. | ||
2574 | */ | ||
2575 | if (!needs & NEED_KERNEL) { | ||
2576 | char *initrdVal; | ||
2577 | |||
2578 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
2579 | newLine = addLine(new, config->cfi, LT_MBMODULE, | ||
2580 | config->secondaryIndent, | ||
2581 | initrdVal); | ||
2582 | free(initrdVal); | ||
2583 | needs &= ~NEED_INITRD; | ||
2584 | } | ||
2585 | } else if (needs & NEED_INITRD) { | ||
2586 | char *initrdVal; | ||
2587 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
2588 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
2589 | free(initrdVal); | ||
2590 | needs &= ~NEED_INITRD; | ||
2591 | niro | 532 | } |
2592 | |||
2593 | } else if (tmplLine->type == LT_TITLE && | ||
2594 | niro | 914 | (needs & NEED_TITLE)) { |
2595 | if (tmplLine->numElements >= 2) { | ||
2596 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2597 | newKernelTitle, config->cfi); | ||
2598 | needs &= ~NEED_TITLE; | ||
2599 | } else if (tmplLine->numElements == 1 && | ||
2600 | config->cfi->titleBracketed) { | ||
2601 | /* addLineTmpl doesn't handle titleBracketed */ | ||
2602 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
2603 | tmplLine->indent, newKernelTitle); | ||
2604 | needs &= ~NEED_TITLE; | ||
2605 | } | ||
2606 | niro | 532 | |
2607 | niro | 914 | } else { |
2608 | /* pass through other lines from the template */ | ||
2609 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi); | ||
2610 | } | ||
2611 | niro | 532 | } |
2612 | niro | 914 | |
2613 | niro | 532 | } else { |
2614 | niro | 914 | /* don't have a template, so start the entry with the |
2615 | * appropriate starting line | ||
2616 | */ | ||
2617 | switch (config->cfi->entrySeparator) { | ||
2618 | case LT_KERNEL: | ||
2619 | if (new->multiboot && config->cfi->mbHyperFirst) { | ||
2620 | /* fall through to LT_HYPER */ | ||
2621 | } else { | ||
2622 | newLine = addLine(new, config->cfi, LT_KERNEL, | ||
2623 | config->primaryIndent, | ||
2624 | newKernelPath + strlen(prefix)); | ||
2625 | needs &= ~NEED_KERNEL; | ||
2626 | break; | ||
2627 | } | ||
2628 | |||
2629 | case LT_HYPER: | ||
2630 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
2631 | config->primaryIndent, | ||
2632 | newMBKernel + strlen(prefix)); | ||
2633 | needs &= ~NEED_MB; | ||
2634 | niro | 532 | break; |
2635 | |||
2636 | niro | 914 | case LT_TITLE: |
2637 | if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above) | ||
2638 | char * templabel; | ||
2639 | int x = 0, y = 0; | ||
2640 | |||
2641 | templabel = strdup(newKernelTitle); | ||
2642 | while( templabel[x]){ | ||
2643 | if( templabel[x] == ' ' ){ | ||
2644 | y = x; | ||
2645 | while( templabel[y] ){ | ||
2646 | templabel[y] = templabel[y+1]; | ||
2647 | y++; | ||
2648 | } | ||
2649 | } | ||
2650 | x++; | ||
2651 | } | ||
2652 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
2653 | config->primaryIndent, templabel); | ||
2654 | free(templabel); | ||
2655 | }else{ | ||
2656 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
2657 | config->primaryIndent, newKernelTitle); | ||
2658 | } | ||
2659 | needs &= ~NEED_TITLE; | ||
2660 | break; | ||
2661 | |||
2662 | default: | ||
2663 | abort(); | ||
2664 | niro | 532 | } |
2665 | } | ||
2666 | |||
2667 | niro | 914 | /* add the remainder of the lines, i.e. those that either |
2668 | * weren't present in the template, or in the case of no template, | ||
2669 | * all the lines following the entrySeparator. | ||
2670 | */ | ||
2671 | if (needs & NEED_TITLE) { | ||
2672 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
2673 | config->secondaryIndent, | ||
2674 | newKernelTitle); | ||
2675 | needs &= ~NEED_TITLE; | ||
2676 | niro | 532 | } |
2677 | niro | 914 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
2678 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
2679 | config->secondaryIndent, | ||
2680 | newMBKernel + strlen(prefix)); | ||
2681 | needs &= ~NEED_MB; | ||
2682 | } | ||
2683 | if (needs & NEED_KERNEL) { | ||
2684 | newLine = addLine(new, config->cfi, | ||
2685 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
2686 | config->cfi)) ? | ||
2687 | LT_MBMODULE : LT_KERNEL, | ||
2688 | config->secondaryIndent, | ||
2689 | newKernelPath + strlen(prefix)); | ||
2690 | needs &= ~NEED_KERNEL; | ||
2691 | } | ||
2692 | if (needs & NEED_MB) { | ||
2693 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
2694 | config->secondaryIndent, | ||
2695 | newMBKernel + strlen(prefix)); | ||
2696 | needs &= ~NEED_MB; | ||
2697 | } | ||
2698 | if (needs & NEED_INITRD) { | ||
2699 | char *initrdVal; | ||
2700 | initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
2701 | newLine = addLine(new, config->cfi, | ||
2702 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
2703 | config->cfi)) ? | ||
2704 | LT_MBMODULE : LT_INITRD, | ||
2705 | config->secondaryIndent, | ||
2706 | initrdVal); | ||
2707 | free(initrdVal); | ||
2708 | needs &= ~NEED_INITRD; | ||
2709 | } | ||
2710 | niro | 532 | |
2711 | niro | 914 | if (needs) { |
2712 | printf(_("grubby: needs=%d, aborting\n"), needs); | ||
2713 | abort(); | ||
2714 | } | ||
2715 | |||
2716 | niro | 532 | if (updateImage(config, "0", prefix, newKernelArgs, NULL, |
2717 | newMBKernelArgs, NULL)) return 1; | ||
2718 | |||
2719 | return 0; | ||
2720 | } | ||
2721 | |||
2722 | niro | 914 | static void traceback(int signum) |
2723 | { | ||
2724 | void *array[40]; | ||
2725 | size_t size; | ||
2726 | |||
2727 | signal(SIGSEGV, SIG_DFL); | ||
2728 | memset(array, '\0', sizeof (array)); | ||
2729 | size = backtrace(array, 40); | ||
2730 | |||
2731 | fprintf(stderr, "grubby recieved SIGSEGV! Backtrace (%ld):\n", | ||
2732 | (unsigned long)size); | ||
2733 | backtrace_symbols_fd(array, size, STDERR_FILENO); | ||
2734 | exit(1); | ||
2735 | } | ||
2736 | |||
2737 | niro | 532 | int main(int argc, const char ** argv) { |
2738 | poptContext optCon; | ||
2739 | char * grubConfig = NULL; | ||
2740 | char * outputFile = NULL; | ||
2741 | int arg = 0; | ||
2742 | int flags = 0; | ||
2743 | int badImageOkay = 0; | ||
2744 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; | ||
2745 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; | ||
2746 | niro | 914 | int configureExtLinux = 0; |
2747 | niro | 532 | int bootloaderProbe = 0; |
2748 | niro | 914 | int extraInitrdCount = 0; |
2749 | niro | 532 | char * updateKernelPath = NULL; |
2750 | char * newKernelPath = NULL; | ||
2751 | char * removeKernelPath = NULL; | ||
2752 | char * newKernelArgs = NULL; | ||
2753 | char * newKernelInitrd = NULL; | ||
2754 | char * newKernelTitle = NULL; | ||
2755 | char * newKernelVersion = NULL; | ||
2756 | char * newMBKernel = NULL; | ||
2757 | char * newMBKernelArgs = NULL; | ||
2758 | char * removeMBKernelArgs = NULL; | ||
2759 | char * removeMBKernel = NULL; | ||
2760 | char * bootPrefix = NULL; | ||
2761 | char * defaultKernel = NULL; | ||
2762 | char * removeArgs = NULL; | ||
2763 | char * kernelInfo = NULL; | ||
2764 | niro | 914 | char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
2765 | niro | 532 | const char * chptr = NULL; |
2766 | struct configFileInfo * cfi = NULL; | ||
2767 | struct grubConfig * config; | ||
2768 | struct singleEntry * template = NULL; | ||
2769 | int copyDefault = 0, makeDefault = 0; | ||
2770 | int displayDefault = 0; | ||
2771 | struct poptOption options[] = { | ||
2772 | { "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, | ||
2773 | _("add an entry for the specified kernel"), _("kernel-path") }, | ||
2774 | { "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, | ||
2775 | _("add an entry for the specified multiboot kernel"), NULL }, | ||
2776 | { "args", 0, POPT_ARG_STRING, &newKernelArgs, 0, | ||
2777 | _("default arguments for the new kernel or new arguments for " | ||
2778 | "kernel being updated"), _("args") }, | ||
2779 | { "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, | ||
2780 | _("default arguments for the new multiboot kernel or " | ||
2781 | "new arguments for multiboot kernel being updated"), NULL }, | ||
2782 | { "bad-image-okay", 0, 0, &badImageOkay, 0, | ||
2783 | _("don't sanity check images in boot entries (for testing only)"), | ||
2784 | NULL }, | ||
2785 | { "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, | ||
2786 | _("filestystem which contains /boot directory (for testing only)"), | ||
2787 | _("bootfs") }, | ||
2788 | #if defined(__i386__) || defined(__x86_64__) | ||
2789 | { "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, | ||
2790 | _("check if lilo is installed on lilo.conf boot sector") }, | ||
2791 | #endif | ||
2792 | { "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, | ||
2793 | _("path to grub config file to update (\"-\" for stdin)"), | ||
2794 | _("path") }, | ||
2795 | { "copy-default", 0, 0, ©Default, 0, | ||
2796 | _("use the default boot entry as a template for the new entry " | ||
2797 | "being added; if the default is not a linux image, or if " | ||
2798 | "the kernel referenced by the default image does not exist, " | ||
2799 | "the first linux entry whose kernel does exist is used as the " | ||
2800 | "template"), NULL }, | ||
2801 | { "default-kernel", 0, 0, &displayDefault, 0, | ||
2802 | _("display the path of the default kernel") }, | ||
2803 | { "elilo", 0, POPT_ARG_NONE, &configureELilo, 0, | ||
2804 | _("configure elilo bootloader") }, | ||
2805 | niro | 914 | { "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
2806 | _("configure extlinux bootloader (from syslinux)") }, | ||
2807 | niro | 532 | { "grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
2808 | _("configure grub bootloader") }, | ||
2809 | { "info", 0, POPT_ARG_STRING, &kernelInfo, 0, | ||
2810 | _("display boot information for specified kernel"), | ||
2811 | _("kernel-path") }, | ||
2812 | { "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, | ||
2813 | _("initrd image for the new kernel"), _("initrd-path") }, | ||
2814 | niro | 914 | { "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
2815 | _("auxilliary initrd image for things other than the new kernel"), _("initrd-path") }, | ||
2816 | niro | 532 | { "lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
2817 | _("configure lilo bootloader") }, | ||
2818 | { "make-default", 0, 0, &makeDefault, 0, | ||
2819 | _("make the newly added entry the default boot entry"), NULL }, | ||
2820 | { "output-file", 'o', POPT_ARG_STRING, &outputFile, 0, | ||
2821 | _("path to output updated config file (\"-\" for stdout)"), | ||
2822 | _("path") }, | ||
2823 | { "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, | ||
2824 | _("remove kernel arguments"), NULL }, | ||
2825 | { "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, | ||
2826 | _("remove multiboot kernel arguments"), NULL }, | ||
2827 | { "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, | ||
2828 | _("remove all entries for the specified kernel"), | ||
2829 | _("kernel-path") }, | ||
2830 | { "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, | ||
2831 | _("remove all entries for the specified multiboot kernel"), NULL }, | ||
2832 | { "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, | ||
2833 | _("make the first entry referencing the specified kernel " | ||
2834 | "the default"), _("kernel-path") }, | ||
2835 | { "silo", 0, POPT_ARG_NONE, &configureSilo, 0, | ||
2836 | _("configure silo bootloader") }, | ||
2837 | { "title", 0, POPT_ARG_STRING, &newKernelTitle, 0, | ||
2838 | _("title to use for the new kernel entry"), _("entry-title") }, | ||
2839 | { "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, | ||
2840 | _("updated information for the specified kernel"), | ||
2841 | _("kernel-path") }, | ||
2842 | { "version", 'v', 0, NULL, 'v', | ||
2843 | _("print the version of this program and exit"), NULL }, | ||
2844 | { "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, | ||
2845 | _("configure yaboot bootloader") }, | ||
2846 | { "zipl", 0, POPT_ARG_NONE, &configureZipl, 0, | ||
2847 | _("configure zipl bootloader") }, | ||
2848 | POPT_AUTOHELP | ||
2849 | { 0, 0, 0, 0, 0 } | ||
2850 | }; | ||
2851 | |||
2852 | niro | 914 | useextlinuxmenu=0; |
2853 | |||
2854 | signal(SIGSEGV, traceback); | ||
2855 | |||
2856 | niro | 532 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
2857 | poptReadDefaultConfig(optCon, 1); | ||
2858 | |||
2859 | while ((arg = poptGetNextOpt(optCon)) >= 0) { | ||
2860 | switch (arg) { | ||
2861 | case 'v': | ||
2862 | printf("grubby version %s\n", VERSION); | ||
2863 | exit(0); | ||
2864 | break; | ||
2865 | niro | 914 | case 'i': |
2866 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { | ||
2867 | extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon)); | ||
2868 | } else { | ||
2869 | fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount); | ||
2870 | return 1; | ||
2871 | } | ||
2872 | break; | ||
2873 | niro | 532 | } |
2874 | } | ||
2875 | |||
2876 | if (arg < -1) { | ||
2877 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), | ||
2878 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), | ||
2879 | poptStrerror(arg)); | ||
2880 | return 1; | ||
2881 | } | ||
2882 | |||
2883 | if ((chptr = poptGetArg(optCon))) { | ||
2884 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); | ||
2885 | return 1; | ||
2886 | } | ||
2887 | |||
2888 | if ((configureLilo + configureGrub + configureELilo + | ||
2889 | niro | 914 | configureYaboot + configureSilo + configureZipl + |
2890 | configureExtLinux ) > 1) { | ||
2891 | niro | 532 | fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n")); |
2892 | return 1; | ||
2893 | } else if (bootloaderProbe && grubConfig) { | ||
2894 | fprintf(stderr, | ||
2895 | _("grubby: cannot specify config file with --bootloader-probe\n")); | ||
2896 | return 1; | ||
2897 | } else if (configureLilo) { | ||
2898 | cfi = &liloConfigType; | ||
2899 | } else if (configureGrub) { | ||
2900 | cfi = &grubConfigType; | ||
2901 | } else if (configureELilo) { | ||
2902 | cfi = &eliloConfigType; | ||
2903 | } else if (configureYaboot) { | ||
2904 | cfi = &yabootConfigType; | ||
2905 | } else if (configureSilo) { | ||
2906 | cfi = &siloConfigType; | ||
2907 | } else if (configureZipl) { | ||
2908 | cfi = &ziplConfigType; | ||
2909 | niro | 914 | } else if (configureExtLinux) { |
2910 | cfi = &extlinuxConfigType; | ||
2911 | useextlinuxmenu=1; | ||
2912 | niro | 532 | } |
2913 | |||
2914 | if (!cfi) { | ||
2915 | #ifdef __ia64__ | ||
2916 | cfi = &eliloConfigType; | ||
2917 | #elif __powerpc__ | ||
2918 | cfi = &yabootConfigType; | ||
2919 | #elif __sparc__ | ||
2920 | cfi = &siloConfigType; | ||
2921 | #elif __s390__ | ||
2922 | cfi = &ziplConfigType; | ||
2923 | #elif __s390x__ | ||
2924 | cfi = &ziplConfigtype; | ||
2925 | #else | ||
2926 | cfi = &grubConfigType; | ||
2927 | #endif | ||
2928 | } | ||
2929 | |||
2930 | if (!grubConfig) | ||
2931 | grubConfig = cfi->defaultConfig; | ||
2932 | |||
2933 | if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion || | ||
2934 | newKernelPath || removeKernelPath || makeDefault || | ||
2935 | defaultKernel)) { | ||
2936 | fprintf(stderr, _("grubby: --bootloader-probe may not be used with " | ||
2937 | "specified option")); | ||
2938 | return 1; | ||
2939 | } | ||
2940 | |||
2941 | if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath || | ||
2942 | removeKernelPath)) { | ||
2943 | fprintf(stderr, _("grubby: --default-kernel and --info may not " | ||
2944 | "be used when adding or removing kernels\n")); | ||
2945 | return 1; | ||
2946 | } | ||
2947 | |||
2948 | if (newKernelPath && !newKernelTitle) { | ||
2949 | fprintf(stderr, _("grubby: kernel title must be specified\n")); | ||
2950 | return 1; | ||
2951 | } else if (!newKernelPath && (newKernelTitle || newKernelInitrd || | ||
2952 | newKernelInitrd || copyDefault || | ||
2953 | niro | 914 | makeDefault || extraInitrdCount > 0)) { |
2954 | niro | 532 | fprintf(stderr, _("grubby: kernel path expected\n")); |
2955 | return 1; | ||
2956 | } | ||
2957 | |||
2958 | if (newKernelPath && updateKernelPath) { | ||
2959 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" | ||
2960 | "not be used together")); | ||
2961 | return 1; | ||
2962 | } | ||
2963 | |||
2964 | if (makeDefault && defaultKernel) { | ||
2965 | fprintf(stderr, _("grubby: --make-default and --default-kernel " | ||
2966 | "may not be used together\n")); | ||
2967 | return 1; | ||
2968 | } else if (defaultKernel && removeKernelPath && | ||
2969 | !strcmp(defaultKernel, removeKernelPath)) { | ||
2970 | fprintf(stderr, _("grubby: cannot make removed kernel the default\n")); | ||
2971 | return 1; | ||
2972 | } else if (defaultKernel && newKernelPath && | ||
2973 | !strcmp(defaultKernel, newKernelPath)) { | ||
2974 | makeDefault = 1; | ||
2975 | defaultKernel = NULL; | ||
2976 | } | ||
2977 | |||
2978 | if (!strcmp(grubConfig, "-") && !outputFile) { | ||
2979 | fprintf(stderr, _("grubby: output file must be specified if stdin " | ||
2980 | "is used\n")); | ||
2981 | return 1; | ||
2982 | } | ||
2983 | |||
2984 | if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel | ||
2985 | && !kernelInfo && !bootloaderProbe && !updateKernelPath | ||
2986 | && !removeMBKernel) { | ||
2987 | fprintf(stderr, _("grubby: no action specified\n")); | ||
2988 | return 1; | ||
2989 | } | ||
2990 | |||
2991 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; | ||
2992 | |||
2993 | if (cfi->needsBootPrefix) { | ||
2994 | if (!bootPrefix) { | ||
2995 | bootPrefix = findBootPrefix(); | ||
2996 | if (!bootPrefix) return 1; | ||
2997 | } else { | ||
2998 | /* this shouldn't end with a / */ | ||
2999 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') | ||
3000 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; | ||
3001 | } | ||
3002 | } else { | ||
3003 | bootPrefix = ""; | ||
3004 | } | ||
3005 | |||
3006 | niro | 914 | if (!cfi->mbAllowExtraInitRds && |
3007 | extraInitrdCount > 0) { | ||
3008 | fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig); | ||
3009 | return 1; | ||
3010 | } | ||
3011 | |||
3012 | niro | 532 | if (bootloaderProbe) { |
3013 | niro | 914 | int lrc = 0, grc = 0, erc = 0; |
3014 | niro | 532 | struct grubConfig * lconfig, * gconfig; |
3015 | |||
3016 | if (!access(grubConfigType.defaultConfig, F_OK)) { | ||
3017 | gconfig = readConfig(grubConfigType.defaultConfig, &grubConfigType); | ||
3018 | if (!gconfig) | ||
3019 | grc = 1; | ||
3020 | else | ||
3021 | grc = checkForGrub(gconfig); | ||
3022 | } | ||
3023 | |||
3024 | if (!access(liloConfigType.defaultConfig, F_OK)) { | ||
3025 | lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType); | ||
3026 | if (!lconfig) | ||
3027 | lrc = 1; | ||
3028 | else | ||
3029 | lrc = checkForLilo(lconfig); | ||
3030 | } | ||
3031 | |||
3032 | niro | 914 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
3033 | lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType); | ||
3034 | if (!lconfig) | ||
3035 | erc = 1; | ||
3036 | else | ||
3037 | erc = checkForExtLinux(lconfig); | ||
3038 | } | ||
3039 | |||
3040 | niro | 532 | if (lrc == 1 || grc == 1) return 1; |
3041 | |||
3042 | if (lrc == 2) printf("lilo\n"); | ||
3043 | if (grc == 2) printf("grub\n"); | ||
3044 | niro | 914 | if (erc == 2) printf("extlinux\n"); |
3045 | niro | 532 | |
3046 | return 0; | ||
3047 | } | ||
3048 | |||
3049 | config = readConfig(grubConfig, cfi); | ||
3050 | if (!config) return 1; | ||
3051 | |||
3052 | if (displayDefault) { | ||
3053 | struct singleLine * line; | ||
3054 | struct singleEntry * entry; | ||
3055 | char * rootspec; | ||
3056 | |||
3057 | if (config->defaultImage == -1) return 0; | ||
3058 | entry = findEntryByIndex(config, config->defaultImage); | ||
3059 | if (!entry) return 0; | ||
3060 | if (!suitableImage(entry, bootPrefix, 0, flags)) return 0; | ||
3061 | |||
3062 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
3063 | niro | 532 | if (!line) return 0; |
3064 | |||
3065 | rootspec = getRootSpecifier(line->elements[1].item); | ||
3066 | printf("%s%s\n", bootPrefix, line->elements[1].item + | ||
3067 | ((rootspec != NULL) ? strlen(rootspec) : 0)); | ||
3068 | |||
3069 | return 0; | ||
3070 | } else if (kernelInfo) | ||
3071 | return displayInfo(config, kernelInfo, bootPrefix); | ||
3072 | |||
3073 | if (copyDefault) { | ||
3074 | template = findTemplate(config, bootPrefix, NULL, 0, flags); | ||
3075 | if (!template) return 1; | ||
3076 | } | ||
3077 | |||
3078 | markRemovedImage(config, removeKernelPath, bootPrefix); | ||
3079 | markRemovedImage(config, removeMBKernel, bootPrefix); | ||
3080 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault, | ||
3081 | bootPrefix, flags); | ||
3082 | setFallbackImage(config, newKernelPath != NULL); | ||
3083 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, | ||
3084 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1; | ||
3085 | if (addNewKernel(config, template, bootPrefix, newKernelPath, | ||
3086 | newKernelTitle, newKernelArgs, newKernelInitrd, | ||
3087 | niro | 914 | extraInitrds, extraInitrdCount, |
3088 | niro | 532 | newMBKernel, newMBKernelArgs)) return 1; |
3089 | |||
3090 | |||
3091 | if (numEntries(config) == 0) { | ||
3092 | fprintf(stderr, _("grubby: doing this would leave no kernel entries. " | ||
3093 | "Not writing out new config.\n")); | ||
3094 | return 1; | ||
3095 | } | ||
3096 | |||
3097 | if (!outputFile) | ||
3098 | outputFile = grubConfig; | ||
3099 | |||
3100 | return writeConfig(config, outputFile, bootPrefix); | ||
3101 | } |