Annotation of /trunk/grubby/grubby.c
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Revision 1718 -
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Sat Feb 18 00:49:41 2012 UTC (12 years, 8 months ago) by niro
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File size: 99184 byte(s)
Sat Feb 18 00:49:41 2012 UTC (12 years, 8 months ago) by niro
File MIME type: text/plain
File size: 99184 byte(s)
GRUB: Fix detection by increasing offset when comparing stage1 to MBR A couple of instructions of grub's stage1 get modified when copied to the MBR (replaced by NOOPs). Check for this condition, and skip these bytes while compare stage1 and MBR. Signed-off-by: Cleber Rosa <crosa@redhat.com>
1 | niro | 914 | /* |
2 | * grubby.c | ||
3 | * | ||
4 | * Copyright (C) 2001-2008 Red Hat, Inc. | ||
5 | * All rights reserved. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
19 | */ | ||
20 | niro | 532 | |
21 | niro | 914 | #ifndef _GNU_SOURCE |
22 | #define _GNU_SOURCE | ||
23 | #endif | ||
24 | niro | 532 | #include <ctype.h> |
25 | #include <errno.h> | ||
26 | #include <fcntl.h> | ||
27 | #include <mntent.h> | ||
28 | #include <popt.h> | ||
29 | #include <stdarg.h> | ||
30 | #include <stdlib.h> | ||
31 | #include <string.h> | ||
32 | #include <sys/stat.h> | ||
33 | #include <unistd.h> | ||
34 | niro | 914 | #include <libgen.h> |
35 | #include <execinfo.h> | ||
36 | #include <signal.h> | ||
37 | #include <blkid/blkid.h> | ||
38 | niro | 532 | |
39 | niro | 1694 | #ifndef DEBUG |
40 | niro | 914 | #define DEBUG 0 |
41 | niro | 1694 | #endif |
42 | niro | 532 | |
43 | niro | 914 | #if DEBUG |
44 | #define dbgPrintf(format, args...) fprintf(stderr, format , ## args) | ||
45 | #else | ||
46 | #define dbgPrintf(format, args...) | ||
47 | #endif | ||
48 | |||
49 | niro | 532 | #define _(A) (A) |
50 | |||
51 | niro | 914 | #define MAX_EXTRA_INITRDS 16 /* code segment checked by --bootloader-probe */ |
52 | niro | 532 | #define CODE_SEG_SIZE 128 /* code segment checked by --bootloader-probe */ |
53 | |||
54 | niro | 1718 | #define NOOP_OPCODE 0x90 |
55 | #define JMP_SHORT_OPCODE 0xeb | ||
56 | |||
57 | niro | 532 | /* comments get lumped in with indention */ |
58 | struct lineElement { | ||
59 | char * item; | ||
60 | char * indent; | ||
61 | }; | ||
62 | |||
63 | niro | 914 | enum lineType_e { |
64 | niro | 1696 | LT_WHITESPACE = 1 << 0, |
65 | LT_TITLE = 1 << 1, | ||
66 | LT_KERNEL = 1 << 2, | ||
67 | LT_INITRD = 1 << 3, | ||
68 | LT_HYPER = 1 << 4, | ||
69 | LT_DEFAULT = 1 << 5, | ||
70 | LT_MBMODULE = 1 << 6, | ||
71 | LT_ROOT = 1 << 7, | ||
72 | LT_FALLBACK = 1 << 8, | ||
73 | LT_KERNELARGS = 1 << 9, | ||
74 | LT_BOOT = 1 << 10, | ||
75 | LT_BOOTROOT = 1 << 11, | ||
76 | LT_LBA = 1 << 12, | ||
77 | LT_OTHER = 1 << 13, | ||
78 | LT_GENERIC = 1 << 14, | ||
79 | LT_ECHO = 1 << 16, | ||
80 | LT_MENUENTRY = 1 << 17, | ||
81 | LT_ENTRY_END = 1 << 18, | ||
82 | LT_SET_VARIABLE = 1 << 19, | ||
83 | LT_UNKNOWN = 1 << 20, | ||
84 | niro | 914 | }; |
85 | niro | 532 | |
86 | struct singleLine { | ||
87 | char * indent; | ||
88 | int numElements; | ||
89 | struct lineElement * elements; | ||
90 | struct singleLine * next; | ||
91 | enum lineType_e type; | ||
92 | }; | ||
93 | |||
94 | struct singleEntry { | ||
95 | struct singleLine * lines; | ||
96 | int skip; | ||
97 | int multiboot; | ||
98 | struct singleEntry * next; | ||
99 | }; | ||
100 | |||
101 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) | ||
102 | |||
103 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ | ||
104 | |||
105 | niro | 914 | /* These defines are (only) used in addNewKernel() */ |
106 | #define NEED_KERNEL (1 << 0) | ||
107 | #define NEED_INITRD (1 << 1) | ||
108 | #define NEED_TITLE (1 << 2) | ||
109 | #define NEED_ARGS (1 << 3) | ||
110 | #define NEED_MB (1 << 4) | ||
111 | niro | 1696 | #define NEED_END (1 << 5) |
112 | niro | 532 | |
113 | #define MAIN_DEFAULT (1 << 0) | ||
114 | #define DEFAULT_SAVED -2 | ||
115 | |||
116 | struct keywordTypes { | ||
117 | char * key; | ||
118 | enum lineType_e type; | ||
119 | char nextChar; | ||
120 | niro | 914 | char separatorChar; |
121 | }; | ||
122 | niro | 532 | |
123 | niro | 1696 | struct configFileInfo; |
124 | |||
125 | typedef const char *(*findConfigFunc)(struct configFileInfo *); | ||
126 | typedef const int (*writeLineFunc)(struct configFileInfo *, | ||
127 | struct singleLine *line); | ||
128 | |||
129 | niro | 532 | struct configFileInfo { |
130 | char * defaultConfig; | ||
131 | niro | 1696 | findConfigFunc findConfig; |
132 | writeLineFunc writeLine; | ||
133 | niro | 532 | struct keywordTypes * keywords; |
134 | int defaultIsIndex; | ||
135 | niro | 1696 | int defaultIsVariable; |
136 | niro | 532 | int defaultSupportSaved; |
137 | niro | 1693 | enum lineType_e entryStart; |
138 | niro | 1696 | enum lineType_e entryEnd; |
139 | niro | 532 | int needsBootPrefix; |
140 | int argsInQuotes; | ||
141 | int maxTitleLength; | ||
142 | int titleBracketed; | ||
143 | niro | 1696 | int titlePosition; |
144 | niro | 914 | int mbHyperFirst; |
145 | int mbInitRdIsModule; | ||
146 | int mbConcatArgs; | ||
147 | int mbAllowExtraInitRds; | ||
148 | niro | 532 | }; |
149 | |||
150 | struct keywordTypes grubKeywords[] = { | ||
151 | { "title", LT_TITLE, ' ' }, | ||
152 | { "root", LT_BOOTROOT, ' ' }, | ||
153 | { "default", LT_DEFAULT, ' ' }, | ||
154 | { "fallback", LT_FALLBACK, ' ' }, | ||
155 | { "kernel", LT_KERNEL, ' ' }, | ||
156 | niro | 914 | { "initrd", LT_INITRD, ' ', ' ' }, |
157 | niro | 532 | { "module", LT_MBMODULE, ' ' }, |
158 | niro | 914 | { "kernel", LT_HYPER, ' ' }, |
159 | niro | 532 | { NULL, 0, 0 }, |
160 | }; | ||
161 | |||
162 | niro | 1715 | const char *grubFindConfig(struct configFileInfo *cfi) { |
163 | static const char *configFiles[] = { | ||
164 | "/etc/grub.conf", | ||
165 | "/boot/grub/grub.conf", | ||
166 | "/boot/grub/menu.lst", | ||
167 | NULL | ||
168 | }; | ||
169 | static int i = -1; | ||
170 | |||
171 | if (i == -1) { | ||
172 | for (i = 0; configFiles[i] != NULL; i++) { | ||
173 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
174 | if (!access(configFiles[i], R_OK)) { | ||
175 | dbgPrintf("found\n"); | ||
176 | return configFiles[i]; | ||
177 | } | ||
178 | dbgPrintf("not found\n"); | ||
179 | } | ||
180 | } | ||
181 | return configFiles[i]; | ||
182 | } | ||
183 | |||
184 | niro | 532 | struct configFileInfo grubConfigType = { |
185 | niro | 1715 | .findConfig = grubFindConfig, |
186 | niro | 1692 | .keywords = grubKeywords, |
187 | .defaultIsIndex = 1, | ||
188 | .defaultSupportSaved = 1, | ||
189 | niro | 1693 | .entryStart = LT_TITLE, |
190 | niro | 1692 | .needsBootPrefix = 1, |
191 | .mbHyperFirst = 1, | ||
192 | .mbInitRdIsModule = 1, | ||
193 | .mbAllowExtraInitRds = 1, | ||
194 | niro | 532 | }; |
195 | |||
196 | niro | 1696 | struct keywordTypes grub2Keywords[] = { |
197 | { "menuentry", LT_MENUENTRY, ' ' }, | ||
198 | { "}", LT_ENTRY_END, ' ' }, | ||
199 | { "echo", LT_ECHO, ' ' }, | ||
200 | { "set", LT_SET_VARIABLE,' ', '=' }, | ||
201 | { "root", LT_BOOTROOT, ' ' }, | ||
202 | { "default", LT_DEFAULT, ' ' }, | ||
203 | { "fallback", LT_FALLBACK, ' ' }, | ||
204 | { "linux", LT_KERNEL, ' ' }, | ||
205 | { "initrd", LT_INITRD, ' ', ' ' }, | ||
206 | { "module", LT_MBMODULE, ' ' }, | ||
207 | { "kernel", LT_HYPER, ' ' }, | ||
208 | { NULL, 0, 0 }, | ||
209 | }; | ||
210 | |||
211 | const char *grub2FindConfig(struct configFileInfo *cfi) { | ||
212 | static const char *configFiles[] = { | ||
213 | "/boot/grub/grub-efi.cfg", | ||
214 | "/boot/grub/grub.cfg", | ||
215 | NULL | ||
216 | }; | ||
217 | static int i = -1; | ||
218 | niro | 1714 | static const char *grub_cfg = "/boot/grub/grub.cfg"; |
219 | niro | 1696 | |
220 | if (i == -1) { | ||
221 | for (i = 0; configFiles[i] != NULL; i++) { | ||
222 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
223 | if (!access(configFiles[i], R_OK)) { | ||
224 | dbgPrintf("found\n"); | ||
225 | return configFiles[i]; | ||
226 | } | ||
227 | } | ||
228 | } | ||
229 | niro | 1714 | |
230 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory | ||
231 | * that isn't in grub1, and if it exists, return the config file path | ||
232 | * that they use. */ | ||
233 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { | ||
234 | dbgPrintf("found\n"); | ||
235 | return grub_cfg; | ||
236 | } | ||
237 | |||
238 | dbgPrintf("not found\n"); | ||
239 | niro | 1696 | return configFiles[i]; |
240 | } | ||
241 | |||
242 | struct configFileInfo grub2ConfigType = { | ||
243 | .findConfig = grub2FindConfig, | ||
244 | .keywords = grub2Keywords, | ||
245 | .defaultIsIndex = 1, | ||
246 | .defaultSupportSaved = 0, | ||
247 | .defaultIsVariable = 1, | ||
248 | .entryStart = LT_MENUENTRY, | ||
249 | .entryEnd = LT_ENTRY_END, | ||
250 | .titlePosition = 1, | ||
251 | .needsBootPrefix = 1, | ||
252 | .mbHyperFirst = 1, | ||
253 | .mbInitRdIsModule = 1, | ||
254 | .mbAllowExtraInitRds = 1, | ||
255 | }; | ||
256 | |||
257 | niro | 532 | struct keywordTypes yabootKeywords[] = { |
258 | { "label", LT_TITLE, '=' }, | ||
259 | { "root", LT_ROOT, '=' }, | ||
260 | { "default", LT_DEFAULT, '=' }, | ||
261 | { "image", LT_KERNEL, '=' }, | ||
262 | { "bsd", LT_GENERIC, '=' }, | ||
263 | { "macos", LT_GENERIC, '=' }, | ||
264 | { "macosx", LT_GENERIC, '=' }, | ||
265 | { "magicboot", LT_GENERIC, '=' }, | ||
266 | { "darwin", LT_GENERIC, '=' }, | ||
267 | { "timeout", LT_GENERIC, '=' }, | ||
268 | { "install", LT_GENERIC, '=' }, | ||
269 | { "fstype", LT_GENERIC, '=' }, | ||
270 | { "hfstype", LT_GENERIC, '=' }, | ||
271 | { "delay", LT_GENERIC, '=' }, | ||
272 | { "defaultos", LT_GENERIC, '=' }, | ||
273 | { "init-message", LT_GENERIC, '=' }, | ||
274 | { "enablecdboot", LT_GENERIC, ' ' }, | ||
275 | { "enableofboot", LT_GENERIC, ' ' }, | ||
276 | { "enablenetboot", LT_GENERIC, ' ' }, | ||
277 | { "nonvram", LT_GENERIC, ' ' }, | ||
278 | { "hide", LT_GENERIC, ' ' }, | ||
279 | { "protect", LT_GENERIC, ' ' }, | ||
280 | { "nobless", LT_GENERIC, ' ' }, | ||
281 | { "nonvram", LT_GENERIC, ' ' }, | ||
282 | { "brokenosx", LT_GENERIC, ' ' }, | ||
283 | { "usemount", LT_GENERIC, ' ' }, | ||
284 | { "mntpoint", LT_GENERIC, '=' }, | ||
285 | { "partition", LT_GENERIC, '=' }, | ||
286 | { "device", LT_GENERIC, '=' }, | ||
287 | { "fstype", LT_GENERIC, '=' }, | ||
288 | niro | 914 | { "initrd", LT_INITRD, '=', ';' }, |
289 | niro | 532 | { "append", LT_KERNELARGS, '=' }, |
290 | { "boot", LT_BOOT, '=' }, | ||
291 | { "lba", LT_LBA, ' ' }, | ||
292 | { NULL, 0, 0 }, | ||
293 | }; | ||
294 | |||
295 | struct keywordTypes liloKeywords[] = { | ||
296 | { "label", LT_TITLE, '=' }, | ||
297 | { "root", LT_ROOT, '=' }, | ||
298 | { "default", LT_DEFAULT, '=' }, | ||
299 | { "image", LT_KERNEL, '=' }, | ||
300 | { "other", LT_OTHER, '=' }, | ||
301 | { "initrd", LT_INITRD, '=' }, | ||
302 | { "append", LT_KERNELARGS, '=' }, | ||
303 | { "boot", LT_BOOT, '=' }, | ||
304 | { "lba", LT_LBA, ' ' }, | ||
305 | { NULL, 0, 0 }, | ||
306 | }; | ||
307 | |||
308 | niro | 914 | struct keywordTypes eliloKeywords[] = { |
309 | { "label", LT_TITLE, '=' }, | ||
310 | { "root", LT_ROOT, '=' }, | ||
311 | { "default", LT_DEFAULT, '=' }, | ||
312 | { "image", LT_KERNEL, '=' }, | ||
313 | { "initrd", LT_INITRD, '=' }, | ||
314 | { "append", LT_KERNELARGS, '=' }, | ||
315 | { "vmm", LT_HYPER, '=' }, | ||
316 | { NULL, 0, 0 }, | ||
317 | }; | ||
318 | |||
319 | niro | 532 | struct keywordTypes siloKeywords[] = { |
320 | { "label", LT_TITLE, '=' }, | ||
321 | { "root", LT_ROOT, '=' }, | ||
322 | { "default", LT_DEFAULT, '=' }, | ||
323 | { "image", LT_KERNEL, '=' }, | ||
324 | { "other", LT_OTHER, '=' }, | ||
325 | { "initrd", LT_INITRD, '=' }, | ||
326 | { "append", LT_KERNELARGS, '=' }, | ||
327 | { "boot", LT_BOOT, '=' }, | ||
328 | { NULL, 0, 0 }, | ||
329 | }; | ||
330 | |||
331 | struct keywordTypes ziplKeywords[] = { | ||
332 | { "target", LT_BOOTROOT, '=' }, | ||
333 | { "image", LT_KERNEL, '=' }, | ||
334 | { "ramdisk", LT_INITRD, '=' }, | ||
335 | { "parameters", LT_KERNELARGS, '=' }, | ||
336 | { "default", LT_DEFAULT, '=' }, | ||
337 | { NULL, 0, 0 }, | ||
338 | }; | ||
339 | |||
340 | niro | 914 | struct keywordTypes extlinuxKeywords[] = { |
341 | { "label", LT_TITLE, ' ' }, | ||
342 | { "root", LT_ROOT, ' ' }, | ||
343 | { "default", LT_DEFAULT, ' ' }, | ||
344 | { "kernel", LT_KERNEL, ' ' }, | ||
345 | { "initrd", LT_INITRD, ' ', ',' }, | ||
346 | { "append", LT_KERNELARGS, ' ' }, | ||
347 | { "prompt", LT_UNKNOWN, ' ' }, | ||
348 | { NULL, 0, 0 }, | ||
349 | }; | ||
350 | int useextlinuxmenu; | ||
351 | niro | 532 | struct configFileInfo eliloConfigType = { |
352 | niro | 1692 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
353 | .keywords = eliloKeywords, | ||
354 | niro | 1693 | .entryStart = LT_KERNEL, |
355 | niro | 1692 | .needsBootPrefix = 1, |
356 | .argsInQuotes = 1, | ||
357 | .mbConcatArgs = 1, | ||
358 | niro | 532 | }; |
359 | |||
360 | struct configFileInfo liloConfigType = { | ||
361 | niro | 1692 | .defaultConfig = "/etc/lilo.conf", |
362 | .keywords = liloKeywords, | ||
363 | niro | 1693 | .entryStart = LT_KERNEL, |
364 | niro | 1692 | .argsInQuotes = 1, |
365 | .maxTitleLength = 15, | ||
366 | niro | 532 | }; |
367 | |||
368 | struct configFileInfo yabootConfigType = { | ||
369 | niro | 1692 | .defaultConfig = "/etc/yaboot.conf", |
370 | .keywords = yabootKeywords, | ||
371 | niro | 1693 | .entryStart = LT_KERNEL, |
372 | niro | 1692 | .needsBootPrefix = 1, |
373 | .argsInQuotes = 1, | ||
374 | .maxTitleLength = 15, | ||
375 | .mbAllowExtraInitRds = 1, | ||
376 | niro | 532 | }; |
377 | |||
378 | struct configFileInfo siloConfigType = { | ||
379 | niro | 1692 | .defaultConfig = "/etc/silo.conf", |
380 | .keywords = siloKeywords, | ||
381 | niro | 1693 | .entryStart = LT_KERNEL, |
382 | niro | 1692 | .needsBootPrefix = 1, |
383 | .argsInQuotes = 1, | ||
384 | .maxTitleLength = 15, | ||
385 | niro | 532 | }; |
386 | |||
387 | struct configFileInfo ziplConfigType = { | ||
388 | niro | 1692 | .defaultConfig = "/etc/zipl.conf", |
389 | .keywords = ziplKeywords, | ||
390 | niro | 1693 | .entryStart = LT_TITLE, |
391 | niro | 1692 | .argsInQuotes = 1, |
392 | .titleBracketed = 1, | ||
393 | niro | 532 | }; |
394 | |||
395 | niro | 914 | struct configFileInfo extlinuxConfigType = { |
396 | niro | 1692 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
397 | .keywords = extlinuxKeywords, | ||
398 | niro | 1693 | .entryStart = LT_TITLE, |
399 | niro | 1692 | .needsBootPrefix = 1, |
400 | .maxTitleLength = 255, | ||
401 | .mbAllowExtraInitRds = 1, | ||
402 | niro | 914 | }; |
403 | |||
404 | niro | 532 | struct grubConfig { |
405 | struct singleLine * theLines; | ||
406 | struct singleEntry * entries; | ||
407 | char * primaryIndent; | ||
408 | char * secondaryIndent; | ||
409 | int defaultImage; /* -1 if none specified -- this value is | ||
410 | * written out, overriding original */ | ||
411 | int fallbackImage; /* just like defaultImage */ | ||
412 | int flags; | ||
413 | struct configFileInfo * cfi; | ||
414 | }; | ||
415 | |||
416 | niro | 1156 | blkid_cache blkid; |
417 | |||
418 | niro | 532 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index); |
419 | struct singleEntry * findEntryByPath(struct grubConfig * cfg, | ||
420 | const char * path, const char * prefix, | ||
421 | int * index); | ||
422 | static int readFile(int fd, char ** bufPtr); | ||
423 | static void lineInit(struct singleLine * line); | ||
424 | niro | 914 | struct singleLine * lineDup(struct singleLine * line); |
425 | niro | 532 | static void lineFree(struct singleLine * line); |
426 | static int lineWrite(FILE * out, struct singleLine * line, | ||
427 | struct configFileInfo * cfi); | ||
428 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
429 | struct configFileInfo * cfi); | ||
430 | static char * getRootSpecifier(char * str); | ||
431 | niro | 1696 | static void requote(struct singleLine *line, struct configFileInfo * cfi); |
432 | niro | 914 | static void insertElement(struct singleLine * line, |
433 | const char * item, int insertHere, | ||
434 | struct configFileInfo * cfi); | ||
435 | static void removeElement(struct singleLine * line, int removeHere); | ||
436 | static struct keywordTypes * getKeywordByType(enum lineType_e type, | ||
437 | struct configFileInfo * cfi); | ||
438 | static enum lineType_e getTypeByKeyword(char * keyword, | ||
439 | struct configFileInfo * cfi); | ||
440 | static struct singleLine * getLineByType(enum lineType_e type, | ||
441 | struct singleLine * line); | ||
442 | static int checkForExtLinux(struct grubConfig * config); | ||
443 | struct singleLine * addLineTmpl(struct singleEntry * entry, | ||
444 | struct singleLine * tmplLine, | ||
445 | struct singleLine * prevLine, | ||
446 | const char * val, | ||
447 | struct configFileInfo * cfi); | ||
448 | struct singleLine * addLine(struct singleEntry * entry, | ||
449 | struct configFileInfo * cfi, | ||
450 | enum lineType_e type, char * defaultIndent, | ||
451 | const char * val); | ||
452 | niro | 532 | |
453 | static char * sdupprintf(const char *format, ...) | ||
454 | #ifdef __GNUC__ | ||
455 | __attribute__ ((format (printf, 1, 2))); | ||
456 | #else | ||
457 | ; | ||
458 | #endif | ||
459 | |||
460 | static char * sdupprintf(const char *format, ...) { | ||
461 | char *buf = NULL; | ||
462 | char c; | ||
463 | va_list args; | ||
464 | size_t size = 0; | ||
465 | va_start(args, format); | ||
466 | |||
467 | /* XXX requires C99 vsnprintf behavior */ | ||
468 | size = vsnprintf(&c, 1, format, args) + 1; | ||
469 | if (size == -1) { | ||
470 | printf("ERROR: vsnprintf behavior is not C99\n"); | ||
471 | abort(); | ||
472 | } | ||
473 | |||
474 | va_end(args); | ||
475 | va_start(args, format); | ||
476 | |||
477 | buf = malloc(size); | ||
478 | if (buf == NULL) | ||
479 | return NULL; | ||
480 | vsnprintf(buf, size, format, args); | ||
481 | va_end (args); | ||
482 | |||
483 | return buf; | ||
484 | } | ||
485 | |||
486 | niro | 914 | static struct keywordTypes * getKeywordByType(enum lineType_e type, |
487 | struct configFileInfo * cfi) { | ||
488 | struct keywordTypes * kw; | ||
489 | for (kw = cfi->keywords; kw->key; kw++) { | ||
490 | if (kw->type == type) | ||
491 | return kw; | ||
492 | } | ||
493 | return NULL; | ||
494 | } | ||
495 | |||
496 | niro | 1696 | static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) { |
497 | struct keywordTypes *kt = getKeywordByType(type, cfi); | ||
498 | if (kt) | ||
499 | return kt->key; | ||
500 | return "unknown"; | ||
501 | } | ||
502 | |||
503 | niro | 914 | static char * getpathbyspec(char *device) { |
504 | if (!blkid) | ||
505 | blkid_get_cache(&blkid, NULL); | ||
506 | |||
507 | return blkid_get_devname(blkid, device, NULL); | ||
508 | } | ||
509 | |||
510 | niro | 1156 | static char * getuuidbydev(char *device) { |
511 | if (!blkid) | ||
512 | blkid_get_cache(&blkid, NULL); | ||
513 | |||
514 | return blkid_get_tag_value(blkid, "UUID", device); | ||
515 | } | ||
516 | |||
517 | niro | 914 | static enum lineType_e getTypeByKeyword(char * keyword, |
518 | struct configFileInfo * cfi) { | ||
519 | struct keywordTypes * kw; | ||
520 | for (kw = cfi->keywords; kw->key; kw++) { | ||
521 | if (!strcmp(keyword, kw->key)) | ||
522 | return kw->type; | ||
523 | } | ||
524 | return LT_UNKNOWN; | ||
525 | } | ||
526 | |||
527 | static struct singleLine * getLineByType(enum lineType_e type, | ||
528 | struct singleLine * line) { | ||
529 | dbgPrintf("getLineByType(%d): ", type); | ||
530 | for (; line; line = line->next) { | ||
531 | dbgPrintf("%d:%s ", line->type, | ||
532 | line->numElements ? line->elements[0].item : "(empty)"); | ||
533 | if (line->type & type) break; | ||
534 | } | ||
535 | dbgPrintf(line ? "\n" : " (failed)\n"); | ||
536 | return line; | ||
537 | } | ||
538 | |||
539 | niro | 532 | static int isBracketedTitle(struct singleLine * line) { |
540 | niro | 914 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
541 | niro | 532 | int len = strlen(line->elements[0].item); |
542 | if (*(line->elements[0].item + len - 1) == ']') { | ||
543 | /* FIXME: this is a hack... */ | ||
544 | if (strcmp(line->elements[0].item, "[defaultboot]")) { | ||
545 | return 1; | ||
546 | } | ||
547 | } | ||
548 | } | ||
549 | return 0; | ||
550 | } | ||
551 | |||
552 | niro | 1693 | static int isEntryStart(struct singleLine * line, |
553 | niro | 532 | struct configFileInfo * cfi) { |
554 | niro | 1693 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
555 | niro | 914 | (cfi->titleBracketed && isBracketedTitle(line)); |
556 | niro | 532 | } |
557 | |||
558 | /* extract the title from within brackets (for zipl) */ | ||
559 | static char * extractTitle(struct singleLine * line) { | ||
560 | /* bracketed title... let's extract it (leaks a byte) */ | ||
561 | char * title; | ||
562 | title = strdup(line->elements[0].item); | ||
563 | title++; | ||
564 | *(title + strlen(title) - 1) = '\0'; | ||
565 | return title; | ||
566 | } | ||
567 | |||
568 | static int readFile(int fd, char ** bufPtr) { | ||
569 | int alloced = 0, size = 0, i = 0; | ||
570 | char * buf = NULL; | ||
571 | |||
572 | do { | ||
573 | size += i; | ||
574 | if ((size + 1024) > alloced) { | ||
575 | alloced += 4096; | ||
576 | buf = realloc(buf, alloced + 1); | ||
577 | } | ||
578 | } while ((i = read(fd, buf + size, 1024)) > 0); | ||
579 | |||
580 | if (i < 0) { | ||
581 | fprintf(stderr, _("error reading input: %s\n"), strerror(errno)); | ||
582 | free(buf); | ||
583 | return 1; | ||
584 | } | ||
585 | |||
586 | buf = realloc(buf, size + 2); | ||
587 | if (size == 0) | ||
588 | buf[size++] = '\n'; | ||
589 | else | ||
590 | if (buf[size - 1] != '\n') | ||
591 | buf[size++] = '\n'; | ||
592 | buf[size] = '\0'; | ||
593 | |||
594 | *bufPtr = buf; | ||
595 | |||
596 | return 0; | ||
597 | } | ||
598 | |||
599 | static void lineInit(struct singleLine * line) { | ||
600 | line->indent = NULL; | ||
601 | line->elements = NULL; | ||
602 | line->numElements = 0; | ||
603 | line->next = NULL; | ||
604 | } | ||
605 | |||
606 | niro | 914 | struct singleLine * lineDup(struct singleLine * line) { |
607 | int i; | ||
608 | struct singleLine * newLine = malloc(sizeof(*newLine)); | ||
609 | |||
610 | newLine->indent = strdup(line->indent); | ||
611 | newLine->next = NULL; | ||
612 | newLine->type = line->type; | ||
613 | newLine->numElements = line->numElements; | ||
614 | newLine->elements = malloc(sizeof(*newLine->elements) * | ||
615 | newLine->numElements); | ||
616 | |||
617 | for (i = 0; i < newLine->numElements; i++) { | ||
618 | newLine->elements[i].indent = strdup(line->elements[i].indent); | ||
619 | newLine->elements[i].item = strdup(line->elements[i].item); | ||
620 | } | ||
621 | |||
622 | return newLine; | ||
623 | } | ||
624 | |||
625 | niro | 532 | static void lineFree(struct singleLine * line) { |
626 | int i; | ||
627 | |||
628 | if (line->indent) free(line->indent); | ||
629 | |||
630 | for (i = 0; i < line->numElements; i++) { | ||
631 | free(line->elements[i].item); | ||
632 | free(line->elements[i].indent); | ||
633 | } | ||
634 | |||
635 | if (line->elements) free(line->elements); | ||
636 | lineInit(line); | ||
637 | } | ||
638 | |||
639 | static int lineWrite(FILE * out, struct singleLine * line, | ||
640 | struct configFileInfo * cfi) { | ||
641 | int i; | ||
642 | |||
643 | if (fprintf(out, "%s", line->indent) == -1) return -1; | ||
644 | |||
645 | for (i = 0; i < line->numElements; i++) { | ||
646 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) | ||
647 | if (fputc('"', out) == EOF) return -1; | ||
648 | |||
649 | if (fprintf(out, "%s", line->elements[i].item) == -1) return -1; | ||
650 | niro | 914 | if (i < line->numElements - 1) |
651 | if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1; | ||
652 | niro | 532 | } |
653 | |||
654 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) | ||
655 | if (fputc('"', out) == EOF) return -1; | ||
656 | |||
657 | if (fprintf(out, "\n") == -1) return -1; | ||
658 | |||
659 | return 0; | ||
660 | } | ||
661 | |||
662 | /* we've guaranteed that the buffer ends w/ \n\0 */ | ||
663 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
664 | struct configFileInfo * cfi) { | ||
665 | char * end; | ||
666 | char * start = *bufPtr; | ||
667 | char * chptr; | ||
668 | int elementsAlloced = 0; | ||
669 | struct lineElement * element; | ||
670 | int first = 1; | ||
671 | |||
672 | lineFree(line); | ||
673 | |||
674 | end = strchr(start, '\n'); | ||
675 | *end = '\0'; | ||
676 | *bufPtr = end + 1; | ||
677 | |||
678 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; | ||
679 | |||
680 | line->indent = strndup(start, chptr - start); | ||
681 | start = chptr; | ||
682 | |||
683 | while (start < end) { | ||
684 | /* we know !isspace(*start) */ | ||
685 | |||
686 | if (elementsAlloced == line->numElements) { | ||
687 | elementsAlloced += 5; | ||
688 | line->elements = realloc(line->elements, | ||
689 | sizeof(*line->elements) * elementsAlloced); | ||
690 | } | ||
691 | |||
692 | element = line->elements + line->numElements; | ||
693 | |||
694 | chptr = start; | ||
695 | while (*chptr && !isspace(*chptr)) { | ||
696 | if (first && *chptr == '=') break; | ||
697 | chptr++; | ||
698 | } | ||
699 | element->item = strndup(start, chptr - start); | ||
700 | start = chptr; | ||
701 | |||
702 | /* lilo actually accepts the pathological case of append = " foo " */ | ||
703 | if (*start == '=') | ||
704 | chptr = start + 1; | ||
705 | else | ||
706 | chptr = start; | ||
707 | |||
708 | do { | ||
709 | for (; *chptr && isspace(*chptr); chptr++); | ||
710 | if (*chptr == '=') | ||
711 | chptr = chptr + 1; | ||
712 | } while (isspace(*chptr)); | ||
713 | |||
714 | element->indent = strndup(start, chptr - start); | ||
715 | start = chptr; | ||
716 | |||
717 | line->numElements++; | ||
718 | first = 0; | ||
719 | } | ||
720 | |||
721 | if (!line->numElements) | ||
722 | line->type = LT_WHITESPACE; | ||
723 | else { | ||
724 | niro | 914 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
725 | if (line->type == LT_UNKNOWN) { | ||
726 | niro | 532 | /* zipl does [title] instead of something reasonable like all |
727 | * the other boot loaders. kind of ugly */ | ||
728 | if (cfi->titleBracketed && isBracketedTitle(line)) { | ||
729 | line->type = LT_TITLE; | ||
730 | } | ||
731 | |||
732 | /* this is awkward, but we need to be able to handle keywords | ||
733 | that begin with a # (specifically for #boot in grub.conf), | ||
734 | but still make comments lines with no elements (everything | ||
735 | stored in the indent */ | ||
736 | if (*line->elements[0].item == '#') { | ||
737 | char * fullLine; | ||
738 | int len; | ||
739 | int i; | ||
740 | |||
741 | len = strlen(line->indent); | ||
742 | for (i = 0; i < line->numElements; i++) | ||
743 | len += strlen(line->elements[i].item) + | ||
744 | strlen(line->elements[i].indent); | ||
745 | |||
746 | fullLine = malloc(len + 1); | ||
747 | strcpy(fullLine, line->indent); | ||
748 | free(line->indent); | ||
749 | line->indent = fullLine; | ||
750 | |||
751 | for (i = 0; i < line->numElements; i++) { | ||
752 | strcat(fullLine, line->elements[i].item); | ||
753 | strcat(fullLine, line->elements[i].indent); | ||
754 | free(line->elements[i].item); | ||
755 | free(line->elements[i].indent); | ||
756 | } | ||
757 | |||
758 | line->type = LT_WHITESPACE; | ||
759 | line->numElements = 0; | ||
760 | } | ||
761 | niro | 914 | } else { |
762 | struct keywordTypes *kw; | ||
763 | |||
764 | kw = getKeywordByType(line->type, cfi); | ||
765 | |||
766 | /* space isn't the only separator, we need to split | ||
767 | * elements up more | ||
768 | */ | ||
769 | if (!isspace(kw->separatorChar)) { | ||
770 | int i; | ||
771 | char indent[2] = ""; | ||
772 | indent[0] = kw->separatorChar; | ||
773 | for (i = 1; i < line->numElements; i++) { | ||
774 | char *p; | ||
775 | int j; | ||
776 | int numNewElements; | ||
777 | |||
778 | numNewElements = 0; | ||
779 | p = line->elements[i].item; | ||
780 | while (*p != '\0') { | ||
781 | if (*p == kw->separatorChar) | ||
782 | numNewElements++; | ||
783 | p++; | ||
784 | } | ||
785 | if (line->numElements + numNewElements >= elementsAlloced) { | ||
786 | elementsAlloced += numNewElements + 5; | ||
787 | line->elements = realloc(line->elements, | ||
788 | sizeof(*line->elements) * elementsAlloced); | ||
789 | } | ||
790 | |||
791 | for (j = line->numElements; j > i; j--) { | ||
792 | line->elements[j + numNewElements] = line->elements[j]; | ||
793 | } | ||
794 | line->numElements += numNewElements; | ||
795 | |||
796 | p = line->elements[i].item; | ||
797 | while (*p != '\0') { | ||
798 | |||
799 | while (*p != kw->separatorChar && *p != '\0') p++; | ||
800 | if (*p == '\0') { | ||
801 | break; | ||
802 | } | ||
803 | |||
804 | free(line->elements[i].indent); | ||
805 | line->elements[i].indent = strdup(indent); | ||
806 | *p++ = '\0'; | ||
807 | i++; | ||
808 | line->elements[i].item = strdup(p); | ||
809 | line->elements[i].indent = strdup(""); | ||
810 | p = line->elements[i].item; | ||
811 | } | ||
812 | } | ||
813 | } | ||
814 | niro | 532 | } |
815 | } | ||
816 | |||
817 | return 0; | ||
818 | } | ||
819 | |||
820 | static struct grubConfig * readConfig(const char * inName, | ||
821 | struct configFileInfo * cfi) { | ||
822 | int in; | ||
823 | char * incoming = NULL, * head; | ||
824 | int rc; | ||
825 | int sawEntry = 0; | ||
826 | int movedLine = 0; | ||
827 | struct grubConfig * cfg; | ||
828 | struct singleLine * last = NULL, * line, * defaultLine = NULL; | ||
829 | char * end; | ||
830 | struct singleEntry * entry = NULL; | ||
831 | int i, len; | ||
832 | char * buf; | ||
833 | |||
834 | if (!strcmp(inName, "-")) { | ||
835 | in = 0; | ||
836 | } else { | ||
837 | if ((in = open(inName, O_RDONLY)) < 0) { | ||
838 | fprintf(stderr, _("error opening %s for read: %s\n"), | ||
839 | inName, strerror(errno)); | ||
840 | return NULL; | ||
841 | } | ||
842 | } | ||
843 | |||
844 | rc = readFile(in, &incoming); | ||
845 | close(in); | ||
846 | if (rc) return NULL; | ||
847 | |||
848 | head = incoming; | ||
849 | cfg = malloc(sizeof(*cfg)); | ||
850 | cfg->primaryIndent = strdup(""); | ||
851 | cfg->secondaryIndent = strdup("\t"); | ||
852 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; | ||
853 | cfg->cfi = cfi; | ||
854 | cfg->theLines = NULL; | ||
855 | cfg->entries = NULL; | ||
856 | cfg->fallbackImage = 0; | ||
857 | |||
858 | /* copy everything we have */ | ||
859 | while (*head) { | ||
860 | line = malloc(sizeof(*line)); | ||
861 | lineInit(line); | ||
862 | |||
863 | if (getNextLine(&head, line, cfi)) { | ||
864 | free(line); | ||
865 | /* XXX memory leak of everything in cfg */ | ||
866 | return NULL; | ||
867 | } | ||
868 | |||
869 | if (!sawEntry && line->numElements) { | ||
870 | free(cfg->primaryIndent); | ||
871 | cfg->primaryIndent = strdup(line->indent); | ||
872 | } else if (line->numElements) { | ||
873 | free(cfg->secondaryIndent); | ||
874 | cfg->secondaryIndent = strdup(line->indent); | ||
875 | } | ||
876 | |||
877 | niro | 1693 | if (isEntryStart(line, cfi)) { |
878 | niro | 532 | sawEntry = 1; |
879 | if (!entry) { | ||
880 | cfg->entries = malloc(sizeof(*entry)); | ||
881 | entry = cfg->entries; | ||
882 | } else { | ||
883 | entry->next = malloc(sizeof(*entry)); | ||
884 | entry = entry->next; | ||
885 | } | ||
886 | |||
887 | entry->skip = 0; | ||
888 | entry->multiboot = 0; | ||
889 | entry->lines = NULL; | ||
890 | entry->next = NULL; | ||
891 | } | ||
892 | |||
893 | niro | 1696 | if (line->type == LT_SET_VARIABLE) { |
894 | int i; | ||
895 | dbgPrintf("found 'set' command (%d elements): ", line->numElements); | ||
896 | dbgPrintf("%s", line->indent); | ||
897 | for (i = 0; i < line->numElements; i++) | ||
898 | dbgPrintf("%s\"%s\"", line->elements[i].indent, line->elements[i].item); | ||
899 | dbgPrintf("\n"); | ||
900 | struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi); | ||
901 | if (kwType && line->numElements == 3 && | ||
902 | !strcmp(line->elements[1].item, kwType->key)) { | ||
903 | dbgPrintf("Line sets default config\n"); | ||
904 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; | ||
905 | defaultLine = line; | ||
906 | } | ||
907 | } else if (line->type == LT_DEFAULT && line->numElements == 2) { | ||
908 | niro | 532 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
909 | defaultLine = line; | ||
910 | niro | 914 | |
911 | } else if (line->type == LT_KERNEL) { | ||
912 | /* if by some freak chance this is multiboot and the "module" | ||
913 | * lines came earlier in the template, make sure to use LT_HYPER | ||
914 | * instead of LT_KERNEL now | ||
915 | */ | ||
916 | if (entry->multiboot) | ||
917 | line->type = LT_HYPER; | ||
918 | |||
919 | niro | 532 | } else if (line->type == LT_MBMODULE) { |
920 | niro | 914 | /* go back and fix the LT_KERNEL line to indicate LT_HYPER |
921 | * instead, now that we know this is a multiboot entry. | ||
922 | * This only applies to grub, but that's the only place we | ||
923 | * should find LT_MBMODULE lines anyway. | ||
924 | */ | ||
925 | struct singleLine * l; | ||
926 | for (l = entry->lines; l; l = l->next) { | ||
927 | if (l->type == LT_HYPER) | ||
928 | break; | ||
929 | else if (l->type == LT_KERNEL) { | ||
930 | l->type = LT_HYPER; | ||
931 | break; | ||
932 | } | ||
933 | } | ||
934 | niro | 532 | entry->multiboot = 1; |
935 | niro | 914 | |
936 | } else if (line->type == LT_HYPER) { | ||
937 | entry->multiboot = 1; | ||
938 | |||
939 | niro | 532 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
940 | cfg->fallbackImage = strtol(line->elements[1].item, &end, 10); | ||
941 | if (*end) cfg->fallbackImage = -1; | ||
942 | niro | 914 | |
943 | niro | 532 | } else if (line->type == LT_TITLE && line->numElements > 1) { |
944 | /* make the title a single argument (undoing our parsing) */ | ||
945 | len = 0; | ||
946 | for (i = 1; i < line->numElements; i++) { | ||
947 | len += strlen(line->elements[i].item); | ||
948 | len += strlen(line->elements[i].indent); | ||
949 | } | ||
950 | buf = malloc(len + 1); | ||
951 | *buf = '\0'; | ||
952 | |||
953 | for (i = 1; i < line->numElements; i++) { | ||
954 | strcat(buf, line->elements[i].item); | ||
955 | free(line->elements[i].item); | ||
956 | |||
957 | if ((i + 1) != line->numElements) { | ||
958 | strcat(buf, line->elements[i].indent); | ||
959 | free(line->elements[i].indent); | ||
960 | } | ||
961 | } | ||
962 | |||
963 | line->elements[1].indent = | ||
964 | line->elements[line->numElements - 1].indent; | ||
965 | line->elements[1].item = buf; | ||
966 | line->numElements = 2; | ||
967 | niro | 914 | |
968 | niro | 532 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
969 | /* Strip off any " which may be present; they'll be put back | ||
970 | on write. This is one of the few (the only?) places that grubby | ||
971 | canonicalizes the output */ | ||
972 | |||
973 | if (line->numElements >= 2) { | ||
974 | int last, len; | ||
975 | |||
976 | if (*line->elements[1].item == '"') | ||
977 | niro | 914 | memmove(line->elements[1].item, line->elements[1].item + 1, |
978 | strlen(line->elements[1].item + 1) + 1); | ||
979 | niro | 532 | |
980 | last = line->numElements - 1; | ||
981 | len = strlen(line->elements[last].item) - 1; | ||
982 | if (line->elements[last].item[len] == '"') | ||
983 | line->elements[last].item[len] = '\0'; | ||
984 | } | ||
985 | } | ||
986 | |||
987 | /* If we find a generic config option which should live at the | ||
988 | top of the file, move it there. Old versions of grubby were | ||
989 | probably responsible for putting new images in the wrong | ||
990 | place in front of it anyway. */ | ||
991 | if (sawEntry && line->type == LT_GENERIC) { | ||
992 | struct singleLine **l = &cfg->theLines; | ||
993 | struct singleLine **last_nonws = &cfg->theLines; | ||
994 | while (*l) { | ||
995 | if ((*l)->type != LT_WHITESPACE) | ||
996 | last_nonws = &((*l)->next); | ||
997 | l = &((*l)->next); | ||
998 | } | ||
999 | line->next = *last_nonws; | ||
1000 | *last_nonws = line; | ||
1001 | movedLine = 1; | ||
1002 | continue; /* without setting 'last' */ | ||
1003 | } | ||
1004 | niro | 914 | |
1005 | niro | 532 | /* If a second line of whitespace happens after a generic option |
1006 | which was moved, drop it. */ | ||
1007 | if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) { | ||
1008 | lineFree(line); | ||
1009 | free(line); | ||
1010 | movedLine = 0; | ||
1011 | continue; | ||
1012 | } | ||
1013 | movedLine = 0; | ||
1014 | |||
1015 | if (sawEntry) { | ||
1016 | if (!entry->lines) | ||
1017 | entry->lines = line; | ||
1018 | else | ||
1019 | last->next = line; | ||
1020 | niro | 1696 | dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry); |
1021 | |||
1022 | /* we could have seen this outside of an entry... if so, we | ||
1023 | * ignore it like any other line we don't grok */ | ||
1024 | if (line->type == LT_ENTRY_END && sawEntry) | ||
1025 | sawEntry = 0; | ||
1026 | niro | 532 | } else { |
1027 | if (!cfg->theLines) | ||
1028 | cfg->theLines = line; | ||
1029 | niro | 914 | else |
1030 | niro | 532 | last->next = line; |
1031 | niro | 1696 | dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi)); |
1032 | niro | 532 | } |
1033 | |||
1034 | last = line; | ||
1035 | } | ||
1036 | |||
1037 | free(incoming); | ||
1038 | |||
1039 | niro | 1696 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1040 | niro | 532 | if (defaultLine) { |
1041 | niro | 1696 | if (cfi->defaultIsVariable) { |
1042 | char *value = defaultLine->elements[2].item; | ||
1043 | while (*value && (*value == '"' || *value == '\'' || | ||
1044 | *value == ' ' || *value == '\t')) | ||
1045 | value++; | ||
1046 | cfg->defaultImage = strtol(value, &end, 10); | ||
1047 | while (*end && (*end == '"' || *end == '\'' || | ||
1048 | *end == ' ' || *end == '\t')) | ||
1049 | end++; | ||
1050 | if (*end) cfg->defaultImage = -1; | ||
1051 | } else if (cfi->defaultSupportSaved && | ||
1052 | niro | 532 | !strncmp(defaultLine->elements[1].item, "saved", 5)) { |
1053 | cfg->defaultImage = DEFAULT_SAVED; | ||
1054 | } else if (cfi->defaultIsIndex) { | ||
1055 | cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10); | ||
1056 | if (*end) cfg->defaultImage = -1; | ||
1057 | } else if (defaultLine->numElements >= 2) { | ||
1058 | i = 0; | ||
1059 | while ((entry = findEntryByIndex(cfg, i))) { | ||
1060 | for (line = entry->lines; line; line = line->next) | ||
1061 | if (line->type == LT_TITLE) break; | ||
1062 | |||
1063 | if (!cfi->titleBracketed) { | ||
1064 | if (line && (line->numElements >= 2) && | ||
1065 | !strcmp(defaultLine->elements[1].item, | ||
1066 | line->elements[1].item)) break; | ||
1067 | } else if (line) { | ||
1068 | if (!strcmp(defaultLine->elements[1].item, | ||
1069 | extractTitle(line))) break; | ||
1070 | } | ||
1071 | i++; | ||
1072 | niro | 914 | entry = NULL; |
1073 | niro | 532 | } |
1074 | |||
1075 | niro | 914 | if (entry){ |
1076 | cfg->defaultImage = i; | ||
1077 | }else{ | ||
1078 | cfg->defaultImage = -1; | ||
1079 | } | ||
1080 | niro | 532 | } |
1081 | niro | 914 | } else { |
1082 | cfg->defaultImage = 0; | ||
1083 | niro | 532 | } |
1084 | |||
1085 | return cfg; | ||
1086 | } | ||
1087 | |||
1088 | static void writeDefault(FILE * out, char * indent, | ||
1089 | char * separator, struct grubConfig * cfg) { | ||
1090 | struct singleEntry * entry; | ||
1091 | struct singleLine * line; | ||
1092 | int i; | ||
1093 | |||
1094 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return; | ||
1095 | |||
1096 | if (cfg->defaultImage == DEFAULT_SAVED) | ||
1097 | fprintf(out, "%sdefault%ssaved\n", indent, separator); | ||
1098 | else if (cfg->defaultImage > -1) { | ||
1099 | if (cfg->cfi->defaultIsIndex) { | ||
1100 | niro | 1696 | if (cfg->cfi->defaultIsVariable) { |
1101 | fprintf(out, "%sset default=\"%d\"\n", indent, | ||
1102 | cfg->defaultImage); | ||
1103 | } else { | ||
1104 | fprintf(out, "%sdefault%s%d\n", indent, separator, | ||
1105 | cfg->defaultImage); | ||
1106 | } | ||
1107 | niro | 532 | } else { |
1108 | int image = cfg->defaultImage; | ||
1109 | |||
1110 | entry = cfg->entries; | ||
1111 | while (entry && entry->skip) entry = entry->next; | ||
1112 | |||
1113 | i = 0; | ||
1114 | while (entry && i < image) { | ||
1115 | entry = entry->next; | ||
1116 | |||
1117 | while (entry && entry->skip) entry = entry->next; | ||
1118 | i++; | ||
1119 | } | ||
1120 | |||
1121 | if (!entry) return; | ||
1122 | |||
1123 | niro | 914 | line = getLineByType(LT_TITLE, entry->lines); |
1124 | niro | 532 | |
1125 | if (line && line->numElements >= 2) | ||
1126 | fprintf(out, "%sdefault%s%s\n", indent, separator, | ||
1127 | line->elements[1].item); | ||
1128 | else if (line && (line->numElements == 1) && | ||
1129 | cfg->cfi->titleBracketed) { | ||
1130 | fprintf(out, "%sdefault%s%s\n", indent, separator, | ||
1131 | extractTitle(line)); | ||
1132 | } | ||
1133 | } | ||
1134 | } | ||
1135 | } | ||
1136 | |||
1137 | static int writeConfig(struct grubConfig * cfg, char * outName, | ||
1138 | const char * prefix) { | ||
1139 | FILE * out; | ||
1140 | struct singleLine * line; | ||
1141 | struct singleEntry * entry; | ||
1142 | char * tmpOutName; | ||
1143 | int needs = MAIN_DEFAULT; | ||
1144 | struct stat sb; | ||
1145 | int i; | ||
1146 | |||
1147 | if (!strcmp(outName, "-")) { | ||
1148 | out = stdout; | ||
1149 | tmpOutName = NULL; | ||
1150 | } else { | ||
1151 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { | ||
1152 | char * buf; | ||
1153 | int len = 256; | ||
1154 | int rc; | ||
1155 | |||
1156 | /* most likely the symlink is relative, so change our | ||
1157 | niro | 914 | directory to the dir of the symlink */ |
1158 | rc = chdir(dirname(strdupa(outName))); | ||
1159 | niro | 532 | do { |
1160 | buf = alloca(len + 1); | ||
1161 | niro | 914 | rc = readlink(basename(outName), buf, len); |
1162 | niro | 532 | if (rc == len) len += 256; |
1163 | } while (rc == len); | ||
1164 | |||
1165 | if (rc < 0) { | ||
1166 | fprintf(stderr, _("grubby: error readlink link %s: %s\n"), | ||
1167 | outName, strerror(errno)); | ||
1168 | return 1; | ||
1169 | } | ||
1170 | |||
1171 | outName = buf; | ||
1172 | outName[rc] = '\0'; | ||
1173 | } | ||
1174 | |||
1175 | tmpOutName = alloca(strlen(outName) + 2); | ||
1176 | sprintf(tmpOutName, "%s-", outName); | ||
1177 | out = fopen(tmpOutName, "w"); | ||
1178 | if (!out) { | ||
1179 | fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName, | ||
1180 | strerror(errno)); | ||
1181 | return 1; | ||
1182 | } | ||
1183 | |||
1184 | if (!stat(outName, &sb)) { | ||
1185 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { | ||
1186 | fprintf(stderr, _("grubby: error setting perms on %s: %s\n"), | ||
1187 | tmpOutName, strerror(errno)); | ||
1188 | fclose(out); | ||
1189 | unlink(tmpOutName); | ||
1190 | return 1; | ||
1191 | } | ||
1192 | } | ||
1193 | } | ||
1194 | |||
1195 | line = cfg->theLines; | ||
1196 | niro | 1696 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1197 | niro | 532 | while (line) { |
1198 | niro | 1696 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1199 | line->numElements == 3 && | ||
1200 | !strcmp(line->elements[1].item, defaultKw->key)) { | ||
1201 | niro | 532 | writeDefault(out, line->indent, line->elements[0].indent, cfg); |
1202 | needs &= ~MAIN_DEFAULT; | ||
1203 | niro | 1696 | } else if (line->type == LT_DEFAULT) { |
1204 | writeDefault(out, line->indent, line->elements[0].indent, cfg); | ||
1205 | needs &= ~MAIN_DEFAULT; | ||
1206 | niro | 532 | } else if (line->type == LT_FALLBACK) { |
1207 | if (cfg->fallbackImage > -1) | ||
1208 | fprintf(out, "%s%s%s%d\n", line->indent, | ||
1209 | line->elements[0].item, line->elements[0].indent, | ||
1210 | cfg->fallbackImage); | ||
1211 | } else { | ||
1212 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1213 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1214 | tmpOutName, strerror(errno)); | ||
1215 | fclose(out); | ||
1216 | unlink(tmpOutName); | ||
1217 | return 1; | ||
1218 | } | ||
1219 | } | ||
1220 | |||
1221 | line = line->next; | ||
1222 | } | ||
1223 | |||
1224 | if (needs & MAIN_DEFAULT) { | ||
1225 | writeDefault(out, cfg->primaryIndent, "=", cfg); | ||
1226 | needs &= ~MAIN_DEFAULT; | ||
1227 | } | ||
1228 | |||
1229 | i = 0; | ||
1230 | while ((entry = findEntryByIndex(cfg, i++))) { | ||
1231 | if (entry->skip) continue; | ||
1232 | |||
1233 | line = entry->lines; | ||
1234 | while (line) { | ||
1235 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1236 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1237 | tmpOutName, strerror(errno)); | ||
1238 | fclose(out); | ||
1239 | unlink(tmpOutName); | ||
1240 | return 1; | ||
1241 | } | ||
1242 | line = line->next; | ||
1243 | } | ||
1244 | } | ||
1245 | |||
1246 | if (tmpOutName) { | ||
1247 | if (rename(tmpOutName, outName)) { | ||
1248 | fprintf(stderr, _("grubby: error moving %s to %s: %s\n"), | ||
1249 | tmpOutName, outName, strerror(errno)); | ||
1250 | unlink(outName); | ||
1251 | return 1; | ||
1252 | } | ||
1253 | } | ||
1254 | |||
1255 | return 0; | ||
1256 | } | ||
1257 | |||
1258 | static int numEntries(struct grubConfig *cfg) { | ||
1259 | int i = 0; | ||
1260 | struct singleEntry * entry; | ||
1261 | |||
1262 | entry = cfg->entries; | ||
1263 | while (entry) { | ||
1264 | if (!entry->skip) | ||
1265 | i++; | ||
1266 | entry = entry->next; | ||
1267 | } | ||
1268 | return i; | ||
1269 | } | ||
1270 | |||
1271 | niro | 1156 | static char *findDiskForRoot() |
1272 | { | ||
1273 | int fd; | ||
1274 | char buf[65536]; | ||
1275 | char *devname; | ||
1276 | char *chptr; | ||
1277 | int rc; | ||
1278 | |||
1279 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { | ||
1280 | fprintf(stderr, "grubby: failed to open %s: %s\n", | ||
1281 | _PATH_MOUNTED, strerror(errno)); | ||
1282 | return NULL; | ||
1283 | } | ||
1284 | |||
1285 | rc = read(fd, buf, sizeof(buf) - 1); | ||
1286 | if (rc <= 0) { | ||
1287 | fprintf(stderr, "grubby: failed to read %s: %s\n", | ||
1288 | _PATH_MOUNTED, strerror(errno)); | ||
1289 | close(fd); | ||
1290 | return NULL; | ||
1291 | } | ||
1292 | close(fd); | ||
1293 | buf[rc] = '\0'; | ||
1294 | chptr = buf; | ||
1295 | |||
1296 | while (chptr && chptr != buf+rc) { | ||
1297 | devname = chptr; | ||
1298 | |||
1299 | /* | ||
1300 | * The first column of a mtab entry is the device, but if the entry is a | ||
1301 | * special device it won't start with /, so move on to the next line. | ||
1302 | */ | ||
1303 | if (*devname != '/') { | ||
1304 | chptr = strchr(chptr, '\n'); | ||
1305 | if (chptr) | ||
1306 | chptr++; | ||
1307 | continue; | ||
1308 | } | ||
1309 | |||
1310 | /* Seek to the next space */ | ||
1311 | chptr = strchr(chptr, ' '); | ||
1312 | if (!chptr) { | ||
1313 | fprintf(stderr, "grubby: error parsing %s: %s\n", | ||
1314 | _PATH_MOUNTED, strerror(errno)); | ||
1315 | return NULL; | ||
1316 | } | ||
1317 | |||
1318 | /* | ||
1319 | * The second column of a mtab entry is the mount point, we are looking | ||
1320 | * for '/' obviously. | ||
1321 | */ | ||
1322 | if (*(++chptr) == '/' && *(++chptr) == ' ') { | ||
1323 | /* | ||
1324 | * Move back 2, which is the first space after the device name, set | ||
1325 | * it to \0 so strdup will just get the devicename. | ||
1326 | */ | ||
1327 | chptr -= 2; | ||
1328 | *chptr = '\0'; | ||
1329 | return strdup(devname); | ||
1330 | } | ||
1331 | |||
1332 | /* Next line */ | ||
1333 | chptr = strchr(chptr, '\n'); | ||
1334 | if (chptr) | ||
1335 | chptr++; | ||
1336 | } | ||
1337 | |||
1338 | return NULL; | ||
1339 | } | ||
1340 | |||
1341 | niro | 532 | int suitableImage(struct singleEntry * entry, const char * bootPrefix, |
1342 | int skipRemoved, int flags) { | ||
1343 | struct singleLine * line; | ||
1344 | char * fullName; | ||
1345 | int i; | ||
1346 | char * dev; | ||
1347 | char * rootspec; | ||
1348 | niro | 1156 | char * rootdev; |
1349 | niro | 532 | |
1350 | if (skipRemoved && entry->skip) return 0; | ||
1351 | |||
1352 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1353 | if (!line || line->numElements < 2) return 0; | ||
1354 | |||
1355 | niro | 532 | if (flags & GRUBBY_BADIMAGE_OKAY) return 1; |
1356 | |||
1357 | fullName = alloca(strlen(bootPrefix) + | ||
1358 | strlen(line->elements[1].item) + 1); | ||
1359 | rootspec = getRootSpecifier(line->elements[1].item); | ||
1360 | sprintf(fullName, "%s%s", bootPrefix, | ||
1361 | niro | 914 | line->elements[1].item + (rootspec ? strlen(rootspec) : 0)); |
1362 | niro | 532 | if (access(fullName, R_OK)) return 0; |
1363 | |||
1364 | for (i = 2; i < line->numElements; i++) | ||
1365 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1366 | if (i < line->numElements) { | ||
1367 | dev = line->elements[i].item + 5; | ||
1368 | } else { | ||
1369 | /* look for a lilo style LT_ROOT line */ | ||
1370 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
1371 | niro | 532 | |
1372 | if (line && line->numElements >= 2) { | ||
1373 | dev = line->elements[1].item; | ||
1374 | } else { | ||
1375 | niro | 914 | /* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS. |
1376 | * grub+multiboot uses LT_MBMODULE for the args, so check that too. | ||
1377 | */ | ||
1378 | line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines); | ||
1379 | niro | 532 | |
1380 | /* failed to find one */ | ||
1381 | if (!line) return 0; | ||
1382 | |||
1383 | for (i = 1; i < line->numElements; i++) | ||
1384 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1385 | if (i < line->numElements) | ||
1386 | dev = line->elements[i].item + 5; | ||
1387 | else { | ||
1388 | /* it failed too... can't find root= */ | ||
1389 | return 0; | ||
1390 | } | ||
1391 | } | ||
1392 | } | ||
1393 | |||
1394 | niro | 914 | dev = getpathbyspec(dev); |
1395 | if (!dev) | ||
1396 | return 0; | ||
1397 | niro | 532 | |
1398 | niro | 1156 | rootdev = findDiskForRoot(); |
1399 | if (!rootdev) | ||
1400 | niro | 914 | return 0; |
1401 | |||
1402 | niro | 1177 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
1403 | free(rootdev); | ||
1404 | return 0; | ||
1405 | } | ||
1406 | niro | 532 | |
1407 | niro | 1156 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
1408 | free(rootdev); | ||
1409 | niro | 914 | return 0; |
1410 | niro | 1156 | } |
1411 | niro | 532 | |
1412 | niro | 1156 | free(rootdev); |
1413 | |||
1414 | niro | 532 | return 1; |
1415 | } | ||
1416 | |||
1417 | /* returns the first match on or after the one pointed to by index (if index | ||
1418 | is not NULL) which is not marked as skip */ | ||
1419 | struct singleEntry * findEntryByPath(struct grubConfig * config, | ||
1420 | const char * kernel, const char * prefix, | ||
1421 | int * index) { | ||
1422 | struct singleEntry * entry = NULL; | ||
1423 | struct singleLine * line; | ||
1424 | int i; | ||
1425 | char * chptr; | ||
1426 | char * rootspec = NULL; | ||
1427 | enum lineType_e checkType = LT_KERNEL; | ||
1428 | |||
1429 | if (isdigit(*kernel)) { | ||
1430 | int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); | ||
1431 | |||
1432 | i = 0; | ||
1433 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1434 | while (*chptr == ',') { | ||
1435 | i++; | ||
1436 | kernel = chptr + 1; | ||
1437 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1438 | } | ||
1439 | |||
1440 | if (*chptr) { | ||
1441 | /* can't parse it, bail */ | ||
1442 | return NULL; | ||
1443 | } | ||
1444 | |||
1445 | indexVars[i + 1] = -1; | ||
1446 | |||
1447 | i = 0; | ||
1448 | if (index) { | ||
1449 | while (i < *index) i++; | ||
1450 | if (indexVars[i] == -1) return NULL; | ||
1451 | } | ||
1452 | |||
1453 | entry = findEntryByIndex(config, indexVars[i]); | ||
1454 | if (!entry) return NULL; | ||
1455 | |||
1456 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1457 | niro | 532 | if (!line) return NULL; |
1458 | |||
1459 | if (index) *index = indexVars[i]; | ||
1460 | return entry; | ||
1461 | } | ||
1462 | |||
1463 | if (!strcmp(kernel, "DEFAULT")) { | ||
1464 | if (index && *index > config->defaultImage) { | ||
1465 | entry = NULL; | ||
1466 | } else { | ||
1467 | entry = findEntryByIndex(config, config->defaultImage); | ||
1468 | if (entry && entry->skip) | ||
1469 | entry = NULL; | ||
1470 | else if (index) | ||
1471 | *index = config->defaultImage; | ||
1472 | } | ||
1473 | } else if (!strcmp(kernel, "ALL")) { | ||
1474 | if (index) | ||
1475 | i = *index; | ||
1476 | else | ||
1477 | i = 0; | ||
1478 | |||
1479 | while ((entry = findEntryByIndex(config, i))) { | ||
1480 | if (!entry->skip) break; | ||
1481 | i++; | ||
1482 | } | ||
1483 | |||
1484 | if (entry && index) | ||
1485 | *index = i; | ||
1486 | } else { | ||
1487 | if (index) | ||
1488 | i = *index; | ||
1489 | else | ||
1490 | i = 0; | ||
1491 | |||
1492 | if (!strncmp(kernel, "TITLE=", 6)) { | ||
1493 | prefix = ""; | ||
1494 | checkType = LT_TITLE; | ||
1495 | kernel += 6; | ||
1496 | } | ||
1497 | |||
1498 | niro | 914 | for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) { |
1499 | if (entry->skip) continue; | ||
1500 | niro | 532 | |
1501 | niro | 914 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry); |
1502 | niro | 532 | |
1503 | niro | 914 | /* check all the lines matching checkType */ |
1504 | for (line = entry->lines; line; line = line->next) { | ||
1505 | line = getLineByType(entry->multiboot && checkType == LT_KERNEL ? | ||
1506 | LT_KERNEL|LT_MBMODULE|LT_HYPER : | ||
1507 | checkType, line); | ||
1508 | if (!line) break; /* not found in this entry */ | ||
1509 | niro | 532 | |
1510 | niro | 914 | if (line && line->numElements >= 2) { |
1511 | rootspec = getRootSpecifier(line->elements[1].item); | ||
1512 | if (!strcmp(line->elements[1].item + | ||
1513 | ((rootspec != NULL) ? strlen(rootspec) : 0), | ||
1514 | kernel + strlen(prefix))) | ||
1515 | break; | ||
1516 | } | ||
1517 | } | ||
1518 | |||
1519 | /* make sure this entry has a kernel identifier; this skips | ||
1520 | * non-Linux boot entries (could find netbsd etc, though, which is | ||
1521 | * unfortunate) | ||
1522 | */ | ||
1523 | if (line && getLineByType(LT_KERNEL|LT_HYPER, entry->lines)) | ||
1524 | break; /* found 'im! */ | ||
1525 | niro | 532 | } |
1526 | |||
1527 | if (index) *index = i; | ||
1528 | } | ||
1529 | |||
1530 | return entry; | ||
1531 | } | ||
1532 | |||
1533 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) { | ||
1534 | struct singleEntry * entry; | ||
1535 | |||
1536 | entry = cfg->entries; | ||
1537 | while (index && entry) { | ||
1538 | entry = entry->next; | ||
1539 | index--; | ||
1540 | } | ||
1541 | |||
1542 | return entry; | ||
1543 | } | ||
1544 | |||
1545 | /* Find a good template to use for the new kernel. An entry is | ||
1546 | * good if the kernel and mkinitrd exist (even if the entry | ||
1547 | * is going to be removed). Try and use the default entry, but | ||
1548 | * if that doesn't work just take the first. If we can't find one, | ||
1549 | * bail. */ | ||
1550 | struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix, | ||
1551 | int * indexPtr, int skipRemoved, int flags) { | ||
1552 | struct singleEntry * entry, * entry2; | ||
1553 | int index; | ||
1554 | |||
1555 | if (cfg->defaultImage > -1) { | ||
1556 | entry = findEntryByIndex(cfg, cfg->defaultImage); | ||
1557 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { | ||
1558 | if (indexPtr) *indexPtr = cfg->defaultImage; | ||
1559 | return entry; | ||
1560 | } | ||
1561 | } | ||
1562 | |||
1563 | index = 0; | ||
1564 | while ((entry = findEntryByIndex(cfg, index))) { | ||
1565 | if (suitableImage(entry, prefix, skipRemoved, flags)) { | ||
1566 | int j; | ||
1567 | for (j = 0; j < index; j++) { | ||
1568 | entry2 = findEntryByIndex(cfg, j); | ||
1569 | if (entry2->skip) index--; | ||
1570 | } | ||
1571 | if (indexPtr) *indexPtr = index; | ||
1572 | |||
1573 | return entry; | ||
1574 | } | ||
1575 | |||
1576 | index++; | ||
1577 | } | ||
1578 | |||
1579 | fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n")); | ||
1580 | |||
1581 | return NULL; | ||
1582 | } | ||
1583 | |||
1584 | char * findBootPrefix(void) { | ||
1585 | struct stat sb, sb2; | ||
1586 | |||
1587 | stat("/", &sb); | ||
1588 | #ifdef __ia64__ | ||
1589 | stat("/boot/efi/EFI/redhat/", &sb2); | ||
1590 | #else | ||
1591 | stat("/boot", &sb2); | ||
1592 | #endif | ||
1593 | |||
1594 | if (sb.st_dev == sb2.st_dev) | ||
1595 | return strdup(""); | ||
1596 | |||
1597 | #ifdef __ia64__ | ||
1598 | return strdup("/boot/efi/EFI/redhat/"); | ||
1599 | #else | ||
1600 | return strdup("/boot"); | ||
1601 | #endif | ||
1602 | } | ||
1603 | |||
1604 | void markRemovedImage(struct grubConfig * cfg, const char * image, | ||
1605 | const char * prefix) { | ||
1606 | struct singleEntry * entry; | ||
1607 | |||
1608 | if (!image) return; | ||
1609 | |||
1610 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) | ||
1611 | entry->skip = 1; | ||
1612 | } | ||
1613 | |||
1614 | void setDefaultImage(struct grubConfig * config, int hasNew, | ||
1615 | const char * defaultKernelPath, int newIsDefault, | ||
1616 | const char * prefix, int flags) { | ||
1617 | struct singleEntry * entry, * entry2, * newDefault; | ||
1618 | int i, j; | ||
1619 | |||
1620 | if (newIsDefault) { | ||
1621 | config->defaultImage = 0; | ||
1622 | return; | ||
1623 | } else if (defaultKernelPath) { | ||
1624 | i = 0; | ||
1625 | if (findEntryByPath(config, defaultKernelPath, prefix, &i)) { | ||
1626 | config->defaultImage = i; | ||
1627 | } else { | ||
1628 | config->defaultImage = -1; | ||
1629 | return; | ||
1630 | } | ||
1631 | } | ||
1632 | |||
1633 | /* defaultImage now points to what we'd like to use, but before any order | ||
1634 | changes */ | ||
1635 | if (config->defaultImage == DEFAULT_SAVED) | ||
1636 | /* default is set to saved, we don't want to change it */ | ||
1637 | return; | ||
1638 | |||
1639 | if (config->defaultImage > -1) | ||
1640 | entry = findEntryByIndex(config, config->defaultImage); | ||
1641 | else | ||
1642 | entry = NULL; | ||
1643 | |||
1644 | if (entry && !entry->skip) { | ||
1645 | /* we can preserve the default */ | ||
1646 | if (hasNew) | ||
1647 | config->defaultImage++; | ||
1648 | |||
1649 | /* count the number of entries erased before this one */ | ||
1650 | for (j = 0; j < config->defaultImage; j++) { | ||
1651 | entry2 = findEntryByIndex(config, j); | ||
1652 | if (entry2->skip) config->defaultImage--; | ||
1653 | } | ||
1654 | } else if (hasNew) { | ||
1655 | config->defaultImage = 0; | ||
1656 | } else { | ||
1657 | /* Either we just erased the default (or the default line was bad | ||
1658 | * to begin with) and didn't put a new one in. We'll use the first | ||
1659 | * valid image. */ | ||
1660 | newDefault = findTemplate(config, prefix, &config->defaultImage, 1, | ||
1661 | flags); | ||
1662 | if (!newDefault) | ||
1663 | config->defaultImage = -1; | ||
1664 | } | ||
1665 | } | ||
1666 | |||
1667 | void setFallbackImage(struct grubConfig * config, int hasNew) { | ||
1668 | struct singleEntry * entry, * entry2; | ||
1669 | int j; | ||
1670 | |||
1671 | if (config->fallbackImage == -1) return; | ||
1672 | |||
1673 | entry = findEntryByIndex(config, config->fallbackImage); | ||
1674 | if (!entry || entry->skip) { | ||
1675 | config->fallbackImage = -1; | ||
1676 | return; | ||
1677 | } | ||
1678 | |||
1679 | if (hasNew) | ||
1680 | config->fallbackImage++; | ||
1681 | |||
1682 | /* count the number of entries erased before this one */ | ||
1683 | for (j = 0; j < config->fallbackImage; j++) { | ||
1684 | entry2 = findEntryByIndex(config, j); | ||
1685 | if (entry2->skip) config->fallbackImage--; | ||
1686 | } | ||
1687 | } | ||
1688 | |||
1689 | void displayEntry(struct singleEntry * entry, const char * prefix, int index) { | ||
1690 | struct singleLine * line; | ||
1691 | char * root = NULL; | ||
1692 | int i; | ||
1693 | |||
1694 | printf("index=%d\n", index); | ||
1695 | |||
1696 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
1697 | if (!line) { | ||
1698 | printf("non linux entry\n"); | ||
1699 | return; | ||
1700 | } | ||
1701 | |||
1702 | niro | 532 | printf("kernel=%s\n", line->elements[1].item); |
1703 | |||
1704 | if (line->numElements >= 3) { | ||
1705 | printf("args=\""); | ||
1706 | i = 2; | ||
1707 | while (i < line->numElements) { | ||
1708 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
1709 | root = line->elements[i].item + 5; | ||
1710 | } else { | ||
1711 | printf("%s%s", line->elements[i].item, | ||
1712 | line->elements[i].indent); | ||
1713 | } | ||
1714 | |||
1715 | i++; | ||
1716 | } | ||
1717 | printf("\"\n"); | ||
1718 | } else { | ||
1719 | niro | 914 | line = getLineByType(LT_KERNELARGS, entry->lines); |
1720 | niro | 532 | if (line) { |
1721 | char * s; | ||
1722 | |||
1723 | printf("args=\""); | ||
1724 | i = 1; | ||
1725 | while (i < line->numElements) { | ||
1726 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
1727 | root = line->elements[i].item + 5; | ||
1728 | } else { | ||
1729 | s = line->elements[i].item; | ||
1730 | |||
1731 | printf("%s%s", s, line->elements[i].indent); | ||
1732 | } | ||
1733 | |||
1734 | i++; | ||
1735 | } | ||
1736 | |||
1737 | s = line->elements[i - 1].indent; | ||
1738 | printf("\"\n"); | ||
1739 | } | ||
1740 | } | ||
1741 | |||
1742 | if (!root) { | ||
1743 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
1744 | niro | 532 | if (line && line->numElements >= 2) |
1745 | root=line->elements[1].item; | ||
1746 | } | ||
1747 | |||
1748 | if (root) { | ||
1749 | char * s = alloca(strlen(root) + 1); | ||
1750 | |||
1751 | strcpy(s, root); | ||
1752 | if (s[strlen(s) - 1] == '"') | ||
1753 | s[strlen(s) - 1] = '\0'; | ||
1754 | /* make sure the root doesn't have a trailing " */ | ||
1755 | printf("root=%s\n", s); | ||
1756 | } | ||
1757 | |||
1758 | niro | 914 | line = getLineByType(LT_INITRD, entry->lines); |
1759 | niro | 532 | |
1760 | if (line && line->numElements >= 2) { | ||
1761 | printf("initrd=%s", prefix); | ||
1762 | for (i = 1; i < line->numElements; i++) | ||
1763 | printf("%s%s", line->elements[i].item, line->elements[i].indent); | ||
1764 | printf("\n"); | ||
1765 | } | ||
1766 | } | ||
1767 | |||
1768 | int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) { | ||
1769 | FILE * in; | ||
1770 | char buf[1024]; | ||
1771 | char * chptr; | ||
1772 | char * start; | ||
1773 | char * param; | ||
1774 | |||
1775 | niro | 926 | in = fopen("/etc/conf.d/grub", "r"); |
1776 | niro | 532 | if (!in) return 1; |
1777 | |||
1778 | if (lbaPtr) *lbaPtr = 0; | ||
1779 | if (bootPtr) *bootPtr = NULL; | ||
1780 | |||
1781 | while (fgets(buf, sizeof(buf), in)) { | ||
1782 | start = buf; | ||
1783 | while (isspace(*start)) start++; | ||
1784 | if (*start == '#') continue; | ||
1785 | |||
1786 | chptr = strchr(start, '='); | ||
1787 | if (!chptr) continue; | ||
1788 | chptr--; | ||
1789 | while (*chptr && isspace(*chptr)) chptr--; | ||
1790 | chptr++; | ||
1791 | *chptr = '\0'; | ||
1792 | |||
1793 | param = chptr + 1; | ||
1794 | while (*param && isspace(*param)) param++; | ||
1795 | if (*param == '=') { | ||
1796 | param++; | ||
1797 | while (*param && isspace(*param)) param++; | ||
1798 | } | ||
1799 | |||
1800 | chptr = param; | ||
1801 | while (*chptr && !isspace(*chptr)) chptr++; | ||
1802 | *chptr = '\0'; | ||
1803 | |||
1804 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) | ||
1805 | *lbaPtr = 1; | ||
1806 | else if (!strcmp(start, "boot") && bootPtr) | ||
1807 | *bootPtr = strdup(param); | ||
1808 | } | ||
1809 | |||
1810 | fclose(in); | ||
1811 | |||
1812 | return 0; | ||
1813 | } | ||
1814 | |||
1815 | void dumpSysconfigGrub(void) { | ||
1816 | char * boot; | ||
1817 | int lba; | ||
1818 | |||
1819 | if (!parseSysconfigGrub(&lba, &boot)) { | ||
1820 | if (lba) printf("lba\n"); | ||
1821 | if (boot) printf("boot=%s\n", boot); | ||
1822 | } | ||
1823 | } | ||
1824 | |||
1825 | int displayInfo(struct grubConfig * config, char * kernel, | ||
1826 | const char * prefix) { | ||
1827 | int i = 0; | ||
1828 | struct singleEntry * entry; | ||
1829 | struct singleLine * line; | ||
1830 | |||
1831 | entry = findEntryByPath(config, kernel, prefix, &i); | ||
1832 | if (!entry) { | ||
1833 | fprintf(stderr, _("grubby: kernel not found\n")); | ||
1834 | return 1; | ||
1835 | } | ||
1836 | |||
1837 | niro | 926 | /* this is a horrible hack to support /etc/conf.d/grub; there must |
1838 | niro | 532 | be a better way */ |
1839 | if (config->cfi == &grubConfigType) { | ||
1840 | dumpSysconfigGrub(); | ||
1841 | } else { | ||
1842 | niro | 914 | line = getLineByType(LT_BOOT, config->theLines); |
1843 | niro | 532 | if (line && line->numElements >= 1) { |
1844 | printf("boot=%s\n", line->elements[1].item); | ||
1845 | } | ||
1846 | |||
1847 | niro | 914 | line = getLineByType(LT_LBA, config->theLines); |
1848 | niro | 532 | if (line) printf("lba\n"); |
1849 | } | ||
1850 | |||
1851 | displayEntry(entry, prefix, i); | ||
1852 | |||
1853 | i++; | ||
1854 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { | ||
1855 | displayEntry(entry, prefix, i); | ||
1856 | i++; | ||
1857 | } | ||
1858 | |||
1859 | return 0; | ||
1860 | } | ||
1861 | |||
1862 | niro | 914 | struct singleLine * addLineTmpl(struct singleEntry * entry, |
1863 | struct singleLine * tmplLine, | ||
1864 | struct singleLine * prevLine, | ||
1865 | const char * val, | ||
1866 | struct configFileInfo * cfi) | ||
1867 | { | ||
1868 | struct singleLine * newLine = lineDup(tmplLine); | ||
1869 | |||
1870 | if (val) { | ||
1871 | /* override the inherited value with our own. | ||
1872 | * This is a little weak because it only applies to elements[1] | ||
1873 | */ | ||
1874 | if (newLine->numElements > 1) | ||
1875 | removeElement(newLine, 1); | ||
1876 | insertElement(newLine, val, 1, cfi); | ||
1877 | |||
1878 | /* but try to keep the rootspec from the template... sigh */ | ||
1879 | if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD)) { | ||
1880 | char * rootspec = getRootSpecifier(tmplLine->elements[1].item); | ||
1881 | if (rootspec != NULL) { | ||
1882 | free(newLine->elements[1].item); | ||
1883 | newLine->elements[1].item = | ||
1884 | sdupprintf("%s%s", rootspec, val); | ||
1885 | } | ||
1886 | } | ||
1887 | } | ||
1888 | |||
1889 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? | ||
1890 | newLine->elements[0].item : ""); | ||
1891 | |||
1892 | if (!entry->lines) { | ||
1893 | /* first one on the list */ | ||
1894 | entry->lines = newLine; | ||
1895 | } else if (prevLine) { | ||
1896 | /* add after prevLine */ | ||
1897 | newLine->next = prevLine->next; | ||
1898 | prevLine->next = newLine; | ||
1899 | } | ||
1900 | |||
1901 | return newLine; | ||
1902 | } | ||
1903 | |||
1904 | niro | 532 | /* val may be NULL */ |
1905 | struct singleLine * addLine(struct singleEntry * entry, | ||
1906 | struct configFileInfo * cfi, | ||
1907 | niro | 914 | enum lineType_e type, char * defaultIndent, |
1908 | const char * val) { | ||
1909 | niro | 532 | struct singleLine * line, * prev; |
1910 | niro | 914 | struct keywordTypes * kw; |
1911 | struct singleLine tmpl; | ||
1912 | niro | 532 | |
1913 | niro | 914 | /* NB: This function shouldn't allocate items on the heap, rather on the |
1914 | * stack since it calls addLineTmpl which will make copies. | ||
1915 | */ | ||
1916 | niro | 532 | |
1917 | niro | 914 | if (type == LT_TITLE && cfi->titleBracketed) { |
1918 | /* we're doing a bracketed title (zipl) */ | ||
1919 | tmpl.type = type; | ||
1920 | tmpl.numElements = 1; | ||
1921 | tmpl.elements = alloca(sizeof(*tmpl.elements)); | ||
1922 | tmpl.elements[0].item = alloca(strlen(val)+3); | ||
1923 | sprintf(tmpl.elements[0].item, "[%s]", val); | ||
1924 | tmpl.elements[0].indent = ""; | ||
1925 | val = NULL; | ||
1926 | niro | 1696 | } else if (type == LT_MENUENTRY) { |
1927 | char *lineend = "--class gnu-linux --class gnu --class os {"; | ||
1928 | if (!val) { | ||
1929 | fprintf(stderr, "Line type LT_MENUENTRY requires a value\n"); | ||
1930 | abort(); | ||
1931 | } | ||
1932 | kw = getKeywordByType(type, cfi); | ||
1933 | if (!kw) { | ||
1934 | fprintf(stderr, "Looking up keyword for unknown type %d\n", type); | ||
1935 | abort(); | ||
1936 | } | ||
1937 | tmpl.indent = ""; | ||
1938 | tmpl.type = type; | ||
1939 | tmpl.numElements = 3; | ||
1940 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
1941 | tmpl.elements[0].item = kw->key; | ||
1942 | tmpl.elements[0].indent = alloca(2); | ||
1943 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
1944 | tmpl.elements[1].item = (char *)val; | ||
1945 | tmpl.elements[1].indent = alloca(2); | ||
1946 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); | ||
1947 | tmpl.elements[2].item = alloca(strlen(lineend)+1); | ||
1948 | strcpy(tmpl.elements[2].item, lineend); | ||
1949 | tmpl.elements[2].indent = ""; | ||
1950 | niro | 914 | } else { |
1951 | kw = getKeywordByType(type, cfi); | ||
1952 | niro | 1696 | if (!kw) { |
1953 | fprintf(stderr, "Looking up keyword for unknown type %d\n", type); | ||
1954 | abort(); | ||
1955 | } | ||
1956 | niro | 914 | tmpl.type = type; |
1957 | tmpl.numElements = val ? 2 : 1; | ||
1958 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
1959 | tmpl.elements[0].item = kw->key; | ||
1960 | tmpl.elements[0].indent = alloca(2); | ||
1961 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
1962 | if (val) { | ||
1963 | tmpl.elements[1].item = (char *)val; | ||
1964 | tmpl.elements[1].indent = ""; | ||
1965 | } | ||
1966 | } | ||
1967 | |||
1968 | niro | 532 | /* The last non-empty line gives us the indention to us and the line |
1969 | to insert after. Note that comments are considered empty lines, which | ||
1970 | may not be ideal? If there are no lines or we are looking at the | ||
1971 | first line, we use defaultIndent (the first line is normally indented | ||
1972 | differently from the rest) */ | ||
1973 | niro | 914 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
1974 | if (line->numElements) prev = line; | ||
1975 | /* fall back on the last line if prev isn't otherwise set */ | ||
1976 | if (!line->next && !prev) prev = line; | ||
1977 | niro | 532 | } |
1978 | |||
1979 | niro | 1696 | struct singleLine *menuEntry; |
1980 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); | ||
1981 | if (tmpl.type == LT_ENTRY_END) { | ||
1982 | if (menuEntry) | ||
1983 | tmpl.indent = menuEntry->indent; | ||
1984 | else | ||
1985 | tmpl.indent = defaultIndent ?: ""; | ||
1986 | } else if (tmpl.type != LT_MENUENTRY) { | ||
1987 | if (menuEntry) | ||
1988 | tmpl.indent = "\t"; | ||
1989 | else if (prev == entry->lines) | ||
1990 | tmpl.indent = defaultIndent ?: ""; | ||
1991 | else | ||
1992 | tmpl.indent = prev->indent; | ||
1993 | } | ||
1994 | niro | 532 | |
1995 | niro | 914 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
1996 | niro | 532 | } |
1997 | |||
1998 | void removeLine(struct singleEntry * entry, struct singleLine * line) { | ||
1999 | struct singleLine * prev; | ||
2000 | int i; | ||
2001 | |||
2002 | for (i = 0; i < line->numElements; i++) { | ||
2003 | free(line->elements[i].item); | ||
2004 | free(line->elements[i].indent); | ||
2005 | } | ||
2006 | free(line->elements); | ||
2007 | free(line->indent); | ||
2008 | |||
2009 | if (line == entry->lines) { | ||
2010 | entry->lines = line->next; | ||
2011 | } else { | ||
2012 | prev = entry->lines; | ||
2013 | while (prev->next != line) prev = prev->next; | ||
2014 | prev->next = line->next; | ||
2015 | } | ||
2016 | |||
2017 | free(line); | ||
2018 | } | ||
2019 | |||
2020 | niro | 1696 | static int isquote(char q) |
2021 | { | ||
2022 | if (q == '\'' || q == '\"') | ||
2023 | return 1; | ||
2024 | return 0; | ||
2025 | } | ||
2026 | |||
2027 | static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi) | ||
2028 | { | ||
2029 | struct singleLine newLine = { | ||
2030 | .indent = tmplLine->indent, | ||
2031 | .type = tmplLine->type, | ||
2032 | .next = tmplLine->next, | ||
2033 | }; | ||
2034 | int firstQuotedItem = -1; | ||
2035 | int quoteLen = 0; | ||
2036 | int j; | ||
2037 | int element = 0; | ||
2038 | char *c; | ||
2039 | |||
2040 | c = malloc(strlen(tmplLine->elements[0].item) + 1); | ||
2041 | strcpy(c, tmplLine->elements[0].item); | ||
2042 | insertElement(&newLine, c, element++, cfi); | ||
2043 | free(c); | ||
2044 | c = NULL; | ||
2045 | |||
2046 | for (j = 1; j < tmplLine->numElements; j++) { | ||
2047 | if (firstQuotedItem == -1) { | ||
2048 | quoteLen += strlen(tmplLine->elements[j].item); | ||
2049 | |||
2050 | if (isquote(tmplLine->elements[j].item[0])) { | ||
2051 | firstQuotedItem = j; | ||
2052 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
2053 | } else { | ||
2054 | c = malloc(quoteLen + 1); | ||
2055 | strcpy(c, tmplLine->elements[j].item); | ||
2056 | insertElement(&newLine, c, element++, cfi); | ||
2057 | free(c); | ||
2058 | quoteLen = 0; | ||
2059 | } | ||
2060 | } else { | ||
2061 | int itemlen = strlen(tmplLine->elements[j].item); | ||
2062 | quoteLen += itemlen; | ||
2063 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
2064 | |||
2065 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { | ||
2066 | c = malloc(quoteLen + 1); | ||
2067 | c[0] = '\0'; | ||
2068 | for (int i = firstQuotedItem; i < j+1; i++) { | ||
2069 | strcat(c, tmplLine->elements[i].item); | ||
2070 | strcat(c, tmplLine->elements[i].indent); | ||
2071 | } | ||
2072 | insertElement(&newLine, c, element++, cfi); | ||
2073 | free(c); | ||
2074 | |||
2075 | firstQuotedItem = -1; | ||
2076 | quoteLen = 0; | ||
2077 | } | ||
2078 | } | ||
2079 | } | ||
2080 | while (tmplLine->numElements) | ||
2081 | removeElement(tmplLine, 0); | ||
2082 | if (tmplLine->elements) | ||
2083 | free(tmplLine->elements); | ||
2084 | |||
2085 | tmplLine->numElements = newLine.numElements; | ||
2086 | tmplLine->elements = newLine.elements; | ||
2087 | } | ||
2088 | |||
2089 | niro | 914 | static void insertElement(struct singleLine * line, |
2090 | const char * item, int insertHere, | ||
2091 | struct configFileInfo * cfi) | ||
2092 | { | ||
2093 | struct keywordTypes * kw; | ||
2094 | char indent[2] = ""; | ||
2095 | |||
2096 | /* sanity check */ | ||
2097 | if (insertHere > line->numElements) { | ||
2098 | dbgPrintf("insertElement() adjusting insertHere from %d to %d\n", | ||
2099 | insertHere, line->numElements); | ||
2100 | insertHere = line->numElements; | ||
2101 | } | ||
2102 | |||
2103 | line->elements = realloc(line->elements, (line->numElements + 1) * | ||
2104 | sizeof(*line->elements)); | ||
2105 | memmove(&line->elements[insertHere+1], | ||
2106 | &line->elements[insertHere], | ||
2107 | (line->numElements - insertHere) * | ||
2108 | sizeof(*line->elements)); | ||
2109 | line->elements[insertHere].item = strdup(item); | ||
2110 | |||
2111 | kw = getKeywordByType(line->type, cfi); | ||
2112 | |||
2113 | if (line->numElements == 0) { | ||
2114 | indent[0] = '\0'; | ||
2115 | } else if (insertHere == 0) { | ||
2116 | indent[0] = kw->nextChar; | ||
2117 | } else if (kw->separatorChar != '\0') { | ||
2118 | indent[0] = kw->separatorChar; | ||
2119 | } else { | ||
2120 | indent[0] = ' '; | ||
2121 | } | ||
2122 | |||
2123 | if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') { | ||
2124 | /* move the end-of-line forward */ | ||
2125 | line->elements[insertHere].indent = | ||
2126 | line->elements[insertHere-1].indent; | ||
2127 | line->elements[insertHere-1].indent = strdup(indent); | ||
2128 | } else { | ||
2129 | line->elements[insertHere].indent = strdup(indent); | ||
2130 | } | ||
2131 | |||
2132 | line->numElements++; | ||
2133 | |||
2134 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", | ||
2135 | line->elements[0].item, | ||
2136 | line->elements[insertHere].item, | ||
2137 | line->elements[insertHere].indent, | ||
2138 | insertHere); | ||
2139 | } | ||
2140 | |||
2141 | static void removeElement(struct singleLine * line, int removeHere) { | ||
2142 | int i; | ||
2143 | |||
2144 | /* sanity check */ | ||
2145 | if (removeHere >= line->numElements) return; | ||
2146 | |||
2147 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, | ||
2148 | removeHere, line->elements[removeHere].item); | ||
2149 | |||
2150 | free(line->elements[removeHere].item); | ||
2151 | |||
2152 | if (removeHere > 1) { | ||
2153 | /* previous argument gets this argument's post-indentation */ | ||
2154 | free(line->elements[removeHere-1].indent); | ||
2155 | line->elements[removeHere-1].indent = | ||
2156 | line->elements[removeHere].indent; | ||
2157 | } else { | ||
2158 | free(line->elements[removeHere].indent); | ||
2159 | } | ||
2160 | |||
2161 | /* now collapse the array, but don't bother to realloc smaller */ | ||
2162 | for (i = removeHere; i < line->numElements - 1; i++) | ||
2163 | line->elements[i] = line->elements[i + 1]; | ||
2164 | |||
2165 | line->numElements--; | ||
2166 | } | ||
2167 | |||
2168 | niro | 532 | int argMatch(const char * one, const char * two) { |
2169 | char * first, * second; | ||
2170 | char * chptr; | ||
2171 | |||
2172 | first = strcpy(alloca(strlen(one) + 1), one); | ||
2173 | second = strcpy(alloca(strlen(two) + 1), two); | ||
2174 | |||
2175 | chptr = strchr(first, '='); | ||
2176 | if (chptr) *chptr = '\0'; | ||
2177 | |||
2178 | chptr = strchr(second, '='); | ||
2179 | if (chptr) *chptr = '\0'; | ||
2180 | |||
2181 | return strcmp(first, second); | ||
2182 | } | ||
2183 | |||
2184 | int updateActualImage(struct grubConfig * cfg, const char * image, | ||
2185 | const char * prefix, const char * addArgs, | ||
2186 | const char * removeArgs, int multibootArgs) { | ||
2187 | struct singleEntry * entry; | ||
2188 | struct singleLine * line, * rootLine; | ||
2189 | int index = 0; | ||
2190 | niro | 914 | int i, k; |
2191 | niro | 532 | const char ** newArgs, ** oldArgs; |
2192 | const char ** arg; | ||
2193 | niro | 914 | int useKernelArgs, useRoot; |
2194 | niro | 532 | int firstElement; |
2195 | niro | 1304 | int *usedElements; |
2196 | niro | 914 | int doreplace; |
2197 | niro | 532 | |
2198 | if (!image) return 0; | ||
2199 | |||
2200 | if (!addArgs) { | ||
2201 | newArgs = malloc(sizeof(*newArgs)); | ||
2202 | *newArgs = NULL; | ||
2203 | } else { | ||
2204 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { | ||
2205 | fprintf(stderr, | ||
2206 | _("grubby: error separating arguments '%s'\n"), addArgs); | ||
2207 | return 1; | ||
2208 | } | ||
2209 | } | ||
2210 | |||
2211 | if (!removeArgs) { | ||
2212 | oldArgs = malloc(sizeof(*oldArgs)); | ||
2213 | *oldArgs = NULL; | ||
2214 | } else { | ||
2215 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { | ||
2216 | fprintf(stderr, | ||
2217 | _("grubby: error separating arguments '%s'\n"), removeArgs); | ||
2218 | free(newArgs); | ||
2219 | return 1; | ||
2220 | } | ||
2221 | } | ||
2222 | |||
2223 | |||
2224 | niro | 914 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
2225 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); | ||
2226 | niro | 532 | |
2227 | niro | 914 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
2228 | && !multibootArgs); | ||
2229 | niro | 532 | |
2230 | niro | 914 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
2231 | niro | 532 | |
2232 | niro | 914 | if (multibootArgs && !entry->multiboot) |
2233 | continue; | ||
2234 | niro | 532 | |
2235 | niro | 914 | /* Determine where to put the args. If this config supports |
2236 | * LT_KERNELARGS, use that. Otherwise use | ||
2237 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. | ||
2238 | */ | ||
2239 | if (useKernelArgs) { | ||
2240 | line = getLineByType(LT_KERNELARGS, entry->lines); | ||
2241 | if (!line) { | ||
2242 | /* no LT_KERNELARGS, need to add it */ | ||
2243 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, | ||
2244 | cfg->secondaryIndent, NULL); | ||
2245 | } | ||
2246 | firstElement = 1; | ||
2247 | niro | 532 | |
2248 | niro | 914 | } else if (multibootArgs) { |
2249 | line = getLineByType(LT_HYPER, entry->lines); | ||
2250 | if (!line) { | ||
2251 | /* a multiboot entry without LT_HYPER? */ | ||
2252 | continue; | ||
2253 | } | ||
2254 | firstElement = 2; | ||
2255 | |||
2256 | } else { | ||
2257 | line = getLineByType(LT_KERNEL|LT_MBMODULE, entry->lines); | ||
2258 | if (!line) { | ||
2259 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ | ||
2260 | continue; | ||
2261 | } | ||
2262 | firstElement = 2; | ||
2263 | niro | 532 | } |
2264 | |||
2265 | niro | 914 | /* handle the elilo case which does: |
2266 | * append="hypervisor args -- kernel args" | ||
2267 | */ | ||
2268 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { | ||
2269 | /* this is a multiboot entry, make sure there's | ||
2270 | * -- on the args line | ||
2271 | */ | ||
2272 | for (i = firstElement; i < line->numElements; i++) { | ||
2273 | if (!strcmp(line->elements[i].item, "--")) | ||
2274 | break; | ||
2275 | } | ||
2276 | if (i == line->numElements) { | ||
2277 | /* assume all existing args are kernel args, | ||
2278 | * prepend -- to make it official | ||
2279 | */ | ||
2280 | insertElement(line, "--", firstElement, cfg->cfi); | ||
2281 | i = firstElement; | ||
2282 | } | ||
2283 | if (!multibootArgs) { | ||
2284 | /* kernel args start after the -- */ | ||
2285 | firstElement = i + 1; | ||
2286 | } | ||
2287 | } else if (cfg->cfi->mbConcatArgs) { | ||
2288 | /* this is a non-multiboot entry, remove hyper args */ | ||
2289 | for (i = firstElement; i < line->numElements; i++) { | ||
2290 | if (!strcmp(line->elements[i].item, "--")) | ||
2291 | break; | ||
2292 | } | ||
2293 | if (i < line->numElements) { | ||
2294 | /* remove args up to -- */ | ||
2295 | while (strcmp(line->elements[firstElement].item, "--")) | ||
2296 | removeElement(line, firstElement); | ||
2297 | /* remove -- */ | ||
2298 | removeElement(line, firstElement); | ||
2299 | } | ||
2300 | niro | 532 | } |
2301 | |||
2302 | niro | 914 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
2303 | niro | 532 | |
2304 | niro | 914 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
2305 | |||
2306 | doreplace = 1; | ||
2307 | niro | 532 | for (i = firstElement; i < line->numElements; i++) { |
2308 | niro | 914 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
2309 | !strcmp(line->elements[i].item, "--")) | ||
2310 | { | ||
2311 | /* reached the end of hyper args, insert here */ | ||
2312 | doreplace = 0; | ||
2313 | break; | ||
2314 | } | ||
2315 | niro | 532 | if (usedElements[i]) |
2316 | continue; | ||
2317 | if (!argMatch(line->elements[i].item, *arg)) { | ||
2318 | usedElements[i]=1; | ||
2319 | break; | ||
2320 | } | ||
2321 | } | ||
2322 | |||
2323 | niro | 914 | if (i < line->numElements && doreplace) { |
2324 | /* direct replacement */ | ||
2325 | niro | 532 | free(line->elements[i].item); |
2326 | line->elements[i].item = strdup(*arg); | ||
2327 | |||
2328 | niro | 914 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
2329 | /* root= replacement */ | ||
2330 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
2331 | if (rootLine) { | ||
2332 | free(rootLine->elements[1].item); | ||
2333 | rootLine->elements[1].item = strdup(*arg + 5); | ||
2334 | niro | 532 | } else { |
2335 | niro | 914 | rootLine = addLine(entry, cfg->cfi, LT_ROOT, |
2336 | cfg->secondaryIndent, *arg + 5); | ||
2337 | niro | 532 | } |
2338 | niro | 914 | } |
2339 | niro | 532 | |
2340 | niro | 914 | else { |
2341 | /* insert/append */ | ||
2342 | insertElement(line, *arg, i, cfg->cfi); | ||
2343 | usedElements = realloc(usedElements, line->numElements * | ||
2344 | sizeof(*usedElements)); | ||
2345 | memmove(&usedElements[i + 1], &usedElements[i], | ||
2346 | line->numElements - i - 1); | ||
2347 | usedElements[i] = 1; | ||
2348 | niro | 532 | |
2349 | /* if we updated a root= here even though there is a | ||
2350 | LT_ROOT available we need to remove the LT_ROOT entry | ||
2351 | (this will happen if we switch from a device to a label) */ | ||
2352 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
2353 | niro | 914 | rootLine = getLineByType(LT_ROOT, entry->lines); |
2354 | if (rootLine) | ||
2355 | niro | 532 | removeLine(entry, rootLine); |
2356 | } | ||
2357 | } | ||
2358 | } | ||
2359 | |||
2360 | free(usedElements); | ||
2361 | |||
2362 | for (arg = oldArgs; *arg; arg++) { | ||
2363 | niro | 914 | for (i = firstElement; i < line->numElements; i++) { |
2364 | if (multibootArgs && cfg->cfi->mbConcatArgs && | ||
2365 | !strcmp(line->elements[i].item, "--")) | ||
2366 | /* reached the end of hyper args, stop here */ | ||
2367 | niro | 532 | break; |
2368 | niro | 914 | if (!argMatch(line->elements[i].item, *arg)) { |
2369 | removeElement(line, i); | ||
2370 | break; | ||
2371 | niro | 532 | } |
2372 | } | ||
2373 | niro | 914 | /* handle removing LT_ROOT line too */ |
2374 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
2375 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
2376 | if (rootLine) | ||
2377 | removeLine(entry, rootLine); | ||
2378 | } | ||
2379 | niro | 532 | } |
2380 | |||
2381 | if (line->numElements == 1) { | ||
2382 | /* don't need the line at all (note it has to be a | ||
2383 | LT_KERNELARGS for this to happen */ | ||
2384 | removeLine(entry, line); | ||
2385 | } | ||
2386 | } | ||
2387 | |||
2388 | free(newArgs); | ||
2389 | free(oldArgs); | ||
2390 | |||
2391 | return 0; | ||
2392 | } | ||
2393 | |||
2394 | int updateImage(struct grubConfig * cfg, const char * image, | ||
2395 | const char * prefix, const char * addArgs, | ||
2396 | const char * removeArgs, | ||
2397 | const char * addMBArgs, const char * removeMBArgs) { | ||
2398 | int rc = 0; | ||
2399 | |||
2400 | if (!image) return rc; | ||
2401 | |||
2402 | /* update the main args first... */ | ||
2403 | if (addArgs || removeArgs) | ||
2404 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0); | ||
2405 | if (rc) return rc; | ||
2406 | |||
2407 | /* and now any multiboot args */ | ||
2408 | if (addMBArgs || removeMBArgs) | ||
2409 | rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1); | ||
2410 | return rc; | ||
2411 | } | ||
2412 | |||
2413 | niro | 1156 | int updateInitrd(struct grubConfig * cfg, const char * image, |
2414 | const char * prefix, const char * initrd) { | ||
2415 | struct singleEntry * entry; | ||
2416 | niro | 1696 | struct singleLine * line, * kernelLine, *endLine = NULL; |
2417 | niro | 1156 | int index = 0; |
2418 | |||
2419 | if (!image) return 0; | ||
2420 | |||
2421 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { | ||
2422 | kernelLine = getLineByType(LT_KERNEL, entry->lines); | ||
2423 | if (!kernelLine) continue; | ||
2424 | |||
2425 | line = getLineByType(LT_INITRD, entry->lines); | ||
2426 | if (line) | ||
2427 | removeLine(entry, line); | ||
2428 | if (prefix) { | ||
2429 | int prefixLen = strlen(prefix); | ||
2430 | if (!strncmp(initrd, prefix, prefixLen)) | ||
2431 | initrd += prefixLen; | ||
2432 | } | ||
2433 | niro | 1696 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
2434 | if (endLine) | ||
2435 | removeLine(entry, endLine); | ||
2436 | niro | 1156 | line = addLine(entry, cfg->cfi, LT_INITRD, kernelLine->indent, initrd); |
2437 | niro | 1696 | if (!line) |
2438 | return 1; | ||
2439 | if (endLine) { | ||
2440 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); | ||
2441 | if (!line) | ||
2442 | return 1; | ||
2443 | } | ||
2444 | |||
2445 | niro | 1156 | break; |
2446 | } | ||
2447 | |||
2448 | return 0; | ||
2449 | } | ||
2450 | |||
2451 | niro | 532 | int checkDeviceBootloader(const char * device, const unsigned char * boot) { |
2452 | int fd; | ||
2453 | unsigned char bootSect[512]; | ||
2454 | int offset; | ||
2455 | |||
2456 | fd = open(device, O_RDONLY); | ||
2457 | if (fd < 0) { | ||
2458 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
2459 | device, strerror(errno)); | ||
2460 | return 1; | ||
2461 | } | ||
2462 | |||
2463 | if (read(fd, bootSect, 512) != 512) { | ||
2464 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2465 | device, strerror(errno)); | ||
2466 | return 1; | ||
2467 | } | ||
2468 | close(fd); | ||
2469 | |||
2470 | /* first three bytes should match, a jmp short should be in there */ | ||
2471 | if (memcmp(boot, bootSect, 3)) | ||
2472 | return 0; | ||
2473 | |||
2474 | niro | 1718 | if (boot[1] == JMP_SHORT_OPCODE) { |
2475 | niro | 532 | offset = boot[2] + 2; |
2476 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { | ||
2477 | offset = (boot[3] << 8) + boot[2] + 2; | ||
2478 | niro | 1718 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
2479 | offset = boot[1] + 2; | ||
2480 | /* | ||
2481 | * it looks like grub, when copying stage1 into the mbr, patches stage1 | ||
2482 | * right after the JMP location, replacing other instructions such as | ||
2483 | * JMPs for NOOPs. So, relax the check a little bit by skipping those | ||
2484 | * different bytes. | ||
2485 | */ | ||
2486 | if ((bootSect[offset + 1] == NOOP_OPCODE) | ||
2487 | && (bootSect[offset + 2] == NOOP_OPCODE)) { | ||
2488 | offset = offset + 3; | ||
2489 | } | ||
2490 | niro | 532 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
2491 | offset = (boot[2] << 8) + boot[1] + 2; | ||
2492 | } else { | ||
2493 | return 0; | ||
2494 | } | ||
2495 | |||
2496 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) | ||
2497 | return 0; | ||
2498 | |||
2499 | return 2; | ||
2500 | } | ||
2501 | |||
2502 | int checkLiloOnRaid(char * mdDev, const unsigned char * boot) { | ||
2503 | int fd; | ||
2504 | char buf[65536]; | ||
2505 | char * end; | ||
2506 | char * chptr; | ||
2507 | char * chptr2; | ||
2508 | int rc; | ||
2509 | |||
2510 | /* it's on raid; we need to parse /proc/mdstat and check all of the | ||
2511 | *raw* devices listed in there */ | ||
2512 | |||
2513 | if (!strncmp(mdDev, "/dev/", 5)) | ||
2514 | mdDev += 5; | ||
2515 | |||
2516 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { | ||
2517 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), | ||
2518 | strerror(errno)); | ||
2519 | return 2; | ||
2520 | } | ||
2521 | |||
2522 | rc = read(fd, buf, sizeof(buf) - 1); | ||
2523 | if (rc < 0 || rc == (sizeof(buf) - 1)) { | ||
2524 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), | ||
2525 | strerror(errno)); | ||
2526 | close(fd); | ||
2527 | return 2; | ||
2528 | } | ||
2529 | close(fd); | ||
2530 | buf[rc] = '\0'; | ||
2531 | |||
2532 | chptr = buf; | ||
2533 | while (*chptr) { | ||
2534 | end = strchr(chptr, '\n'); | ||
2535 | if (!end) break; | ||
2536 | *end = '\0'; | ||
2537 | |||
2538 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && | ||
2539 | chptr[strlen(mdDev)] == ' ') { | ||
2540 | |||
2541 | /* found the device */ | ||
2542 | while (*chptr && *chptr != ':') chptr++; | ||
2543 | chptr++; | ||
2544 | while (*chptr && isspace(*chptr)) chptr++; | ||
2545 | |||
2546 | /* skip the "active" bit */ | ||
2547 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2548 | while (*chptr && isspace(*chptr)) chptr++; | ||
2549 | |||
2550 | /* skip the raid level */ | ||
2551 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2552 | while (*chptr && isspace(*chptr)) chptr++; | ||
2553 | |||
2554 | /* everything else is partition stuff */ | ||
2555 | while (*chptr) { | ||
2556 | chptr2 = chptr; | ||
2557 | while (*chptr2 && *chptr2 != '[') chptr2++; | ||
2558 | if (!*chptr2) break; | ||
2559 | |||
2560 | /* yank off the numbers at the end */ | ||
2561 | chptr2--; | ||
2562 | while (isdigit(*chptr2) && chptr2 > chptr) chptr2--; | ||
2563 | chptr2++; | ||
2564 | *chptr2 = '\0'; | ||
2565 | |||
2566 | /* Better, now we need the /dev/ back. We're done with | ||
2567 | * everything before this point, so we can just put | ||
2568 | * the /dev/ part there. There will always be room. */ | ||
2569 | memcpy(chptr - 5, "/dev/", 5); | ||
2570 | rc = checkDeviceBootloader(chptr - 5, boot); | ||
2571 | if (rc != 2) { | ||
2572 | return rc; | ||
2573 | } | ||
2574 | |||
2575 | chptr = chptr2 + 1; | ||
2576 | /* skip the [11] bit */ | ||
2577 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2578 | /* and move to the next one */ | ||
2579 | while (*chptr && isspace(*chptr)) chptr++; | ||
2580 | } | ||
2581 | |||
2582 | /* we're good to go */ | ||
2583 | return 2; | ||
2584 | } | ||
2585 | |||
2586 | chptr = end + 1; | ||
2587 | } | ||
2588 | |||
2589 | fprintf(stderr, | ||
2590 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), | ||
2591 | mdDev); | ||
2592 | return 0; | ||
2593 | } | ||
2594 | |||
2595 | int checkForLilo(struct grubConfig * config) { | ||
2596 | int fd; | ||
2597 | unsigned char boot[512]; | ||
2598 | struct singleLine * line; | ||
2599 | |||
2600 | for (line = config->theLines; line; line = line->next) | ||
2601 | if (line->type == LT_BOOT) break; | ||
2602 | |||
2603 | if (!line) { | ||
2604 | fprintf(stderr, | ||
2605 | _("grubby: no boot line found in lilo configuration\n")); | ||
2606 | return 1; | ||
2607 | } | ||
2608 | |||
2609 | if (line->numElements != 2) return 1; | ||
2610 | |||
2611 | fd = open("/boot/boot.b", O_RDONLY); | ||
2612 | if (fd < 0) { | ||
2613 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
2614 | "/boot/boot.b", strerror(errno)); | ||
2615 | return 1; | ||
2616 | } | ||
2617 | |||
2618 | if (read(fd, boot, 512) != 512) { | ||
2619 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2620 | "/boot/boot.b", strerror(errno)); | ||
2621 | return 1; | ||
2622 | } | ||
2623 | close(fd); | ||
2624 | |||
2625 | if (!strncmp("/dev/md", line->elements[1].item, 7)) | ||
2626 | return checkLiloOnRaid(line->elements[1].item, boot); | ||
2627 | |||
2628 | return checkDeviceBootloader(line->elements[1].item, boot); | ||
2629 | } | ||
2630 | |||
2631 | niro | 1696 | int checkForGrub2(struct grubConfig * config) { |
2632 | niro | 1714 | if (!access("/etc/grub.d/", R_OK)) |
2633 | niro | 1696 | return 2; |
2634 | |||
2635 | return 1; | ||
2636 | } | ||
2637 | |||
2638 | niro | 532 | int checkForGrub(struct grubConfig * config) { |
2639 | int fd; | ||
2640 | unsigned char bootSect[512]; | ||
2641 | char * boot; | ||
2642 | |||
2643 | if (parseSysconfigGrub(NULL, &boot)) | ||
2644 | return 0; | ||
2645 | |||
2646 | /* assume grub is not installed -- not an error condition */ | ||
2647 | if (!boot) | ||
2648 | return 0; | ||
2649 | |||
2650 | fd = open("/boot/grub/stage1", O_RDONLY); | ||
2651 | if (fd < 0) | ||
2652 | /* this doesn't exist if grub hasn't been installed */ | ||
2653 | return 0; | ||
2654 | |||
2655 | if (read(fd, bootSect, 512) != 512) { | ||
2656 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2657 | "/boot/grub/stage1", strerror(errno)); | ||
2658 | niro | 914 | close(fd); |
2659 | niro | 532 | return 1; |
2660 | } | ||
2661 | close(fd); | ||
2662 | |||
2663 | return checkDeviceBootloader(boot, bootSect); | ||
2664 | } | ||
2665 | |||
2666 | niro | 914 | int checkForExtLinux(struct grubConfig * config) { |
2667 | int fd; | ||
2668 | unsigned char bootSect[512]; | ||
2669 | char * boot; | ||
2670 | char executable[] = "/boot/extlinux/extlinux"; | ||
2671 | |||
2672 | printf("entered: checkForExtLinux()\n"); | ||
2673 | |||
2674 | if (parseSysconfigGrub(NULL, &boot)) | ||
2675 | return 0; | ||
2676 | |||
2677 | /* assume grub is not installed -- not an error condition */ | ||
2678 | if (!boot) | ||
2679 | return 0; | ||
2680 | |||
2681 | fd = open(executable, O_RDONLY); | ||
2682 | if (fd < 0) | ||
2683 | /* this doesn't exist if grub hasn't been installed */ | ||
2684 | return 0; | ||
2685 | |||
2686 | if (read(fd, bootSect, 512) != 512) { | ||
2687 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
2688 | executable, strerror(errno)); | ||
2689 | return 1; | ||
2690 | } | ||
2691 | close(fd); | ||
2692 | |||
2693 | return checkDeviceBootloader(boot, bootSect); | ||
2694 | } | ||
2695 | |||
2696 | niro | 532 | static char * getRootSpecifier(char * str) { |
2697 | char * idx, * rootspec = NULL; | ||
2698 | |||
2699 | if (*str == '(') { | ||
2700 | idx = rootspec = strdup(str); | ||
2701 | while(*idx && (*idx != ')') && (!isspace(*idx))) idx++; | ||
2702 | *(++idx) = '\0'; | ||
2703 | } | ||
2704 | return rootspec; | ||
2705 | } | ||
2706 | |||
2707 | niro | 914 | static char * getInitrdVal(struct grubConfig * config, |
2708 | const char * prefix, struct singleLine *tmplLine, | ||
2709 | const char * newKernelInitrd, | ||
2710 | char ** extraInitrds, int extraInitrdCount) | ||
2711 | { | ||
2712 | char *initrdVal, *end; | ||
2713 | int i; | ||
2714 | size_t totalSize; | ||
2715 | size_t prefixLen; | ||
2716 | char separatorChar; | ||
2717 | |||
2718 | prefixLen = strlen(prefix); | ||
2719 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */; | ||
2720 | |||
2721 | for (i = 0; i < extraInitrdCount; i++) { | ||
2722 | totalSize += sizeof(separatorChar); | ||
2723 | totalSize += strlen(extraInitrds[i]) - prefixLen; | ||
2724 | } | ||
2725 | |||
2726 | initrdVal = end = malloc(totalSize); | ||
2727 | |||
2728 | end = stpcpy (end, newKernelInitrd + prefixLen); | ||
2729 | |||
2730 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; | ||
2731 | for (i = 0; i < extraInitrdCount; i++) { | ||
2732 | const char *extraInitrd; | ||
2733 | int j; | ||
2734 | |||
2735 | extraInitrd = extraInitrds[i] + prefixLen; | ||
2736 | /* Don't add entries that are already there */ | ||
2737 | if (tmplLine != NULL) { | ||
2738 | for (j = 2; j < tmplLine->numElements; j++) | ||
2739 | if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0) | ||
2740 | break; | ||
2741 | |||
2742 | if (j != tmplLine->numElements) | ||
2743 | continue; | ||
2744 | } | ||
2745 | |||
2746 | *end++ = separatorChar; | ||
2747 | end = stpcpy(end, extraInitrd); | ||
2748 | } | ||
2749 | |||
2750 | return initrdVal; | ||
2751 | } | ||
2752 | |||
2753 | niro | 532 | int addNewKernel(struct grubConfig * config, struct singleEntry * template, |
2754 | const char * prefix, | ||
2755 | char * newKernelPath, char * newKernelTitle, | ||
2756 | char * newKernelArgs, char * newKernelInitrd, | ||
2757 | niro | 914 | char ** extraInitrds, int extraInitrdCount, |
2758 | niro | 532 | char * newMBKernel, char * newMBKernelArgs) { |
2759 | struct singleEntry * new; | ||
2760 | niro | 914 | struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL; |
2761 | niro | 532 | int needs; |
2762 | char * chptr; | ||
2763 | |||
2764 | if (!newKernelPath) return 0; | ||
2765 | |||
2766 | /* if the newKernelTitle is too long silently munge it into something | ||
2767 | * we can live with. truncating is first check, then we'll just mess with | ||
2768 | * it until it looks better */ | ||
2769 | if (config->cfi->maxTitleLength && | ||
2770 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { | ||
2771 | char * buf = alloca(config->cfi->maxTitleLength + 7); | ||
2772 | char * numBuf = alloca(config->cfi->maxTitleLength + 1); | ||
2773 | int i = 1; | ||
2774 | |||
2775 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle); | ||
2776 | while (findEntryByPath(config, buf, NULL, NULL)) { | ||
2777 | sprintf(numBuf, "%d", i++); | ||
2778 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); | ||
2779 | } | ||
2780 | |||
2781 | newKernelTitle = buf + 6; | ||
2782 | } | ||
2783 | |||
2784 | new = malloc(sizeof(*new)); | ||
2785 | new->skip = 0; | ||
2786 | new->multiboot = 0; | ||
2787 | new->next = config->entries; | ||
2788 | new->lines = NULL; | ||
2789 | config->entries = new; | ||
2790 | |||
2791 | /* copy/update from the template */ | ||
2792 | niro | 914 | needs = NEED_KERNEL | NEED_TITLE; |
2793 | if (newKernelInitrd) | ||
2794 | needs |= NEED_INITRD; | ||
2795 | niro | 532 | if (newMBKernel) { |
2796 | niro | 914 | needs |= NEED_MB; |
2797 | niro | 532 | new->multiboot = 1; |
2798 | } | ||
2799 | |||
2800 | if (template) { | ||
2801 | niro | 914 | for (masterLine = template->lines; |
2802 | masterLine && (tmplLine = lineDup(masterLine)); | ||
2803 | lineFree(tmplLine), masterLine = masterLine->next) | ||
2804 | { | ||
2805 | dbgPrintf("addNewKernel processing %d\n", tmplLine->type); | ||
2806 | niro | 532 | |
2807 | /* skip comments */ | ||
2808 | chptr = tmplLine->indent; | ||
2809 | while (*chptr && isspace(*chptr)) chptr++; | ||
2810 | if (*chptr == '#') continue; | ||
2811 | |||
2812 | niro | 914 | if (tmplLine->type == LT_KERNEL && |
2813 | niro | 1696 | tmplLine->numElements >= 2) { |
2814 | niro | 914 | if (!template->multiboot && (needs & NEED_MB)) { |
2815 | /* it's not a multiboot template and this is the kernel | ||
2816 | * line. Try to be intelligent about inserting the | ||
2817 | * hypervisor at the same time. | ||
2818 | */ | ||
2819 | if (config->cfi->mbHyperFirst) { | ||
2820 | /* insert the hypervisor first */ | ||
2821 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
2822 | tmplLine->indent, | ||
2823 | newMBKernel + strlen(prefix)); | ||
2824 | /* set up for adding the kernel line */ | ||
2825 | free(tmplLine->indent); | ||
2826 | tmplLine->indent = strdup(config->secondaryIndent); | ||
2827 | needs &= ~NEED_MB; | ||
2828 | } | ||
2829 | if (needs & NEED_KERNEL) { | ||
2830 | /* use addLineTmpl to preserve line elements, | ||
2831 | * otherwise we could just call addLine. Unfortunately | ||
2832 | * this means making some changes to the template | ||
2833 | * such as the indent change above and the type | ||
2834 | * change below. | ||
2835 | */ | ||
2836 | struct keywordTypes * mbm_kw = | ||
2837 | getKeywordByType(LT_MBMODULE, config->cfi); | ||
2838 | if (mbm_kw) { | ||
2839 | tmplLine->type = LT_MBMODULE; | ||
2840 | free(tmplLine->elements[0].item); | ||
2841 | tmplLine->elements[0].item = strdup(mbm_kw->key); | ||
2842 | } | ||
2843 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2844 | newKernelPath + strlen(prefix), config->cfi); | ||
2845 | needs &= ~NEED_KERNEL; | ||
2846 | } | ||
2847 | if (needs & NEED_MB) { /* !mbHyperFirst */ | ||
2848 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
2849 | config->secondaryIndent, | ||
2850 | newMBKernel + strlen(prefix)); | ||
2851 | needs &= ~NEED_MB; | ||
2852 | } | ||
2853 | } else if (needs & NEED_KERNEL) { | ||
2854 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2855 | newKernelPath + strlen(prefix), config->cfi); | ||
2856 | needs &= ~NEED_KERNEL; | ||
2857 | } | ||
2858 | niro | 532 | |
2859 | niro | 914 | } else if (tmplLine->type == LT_HYPER && |
2860 | tmplLine->numElements >= 2) { | ||
2861 | if (needs & NEED_MB) { | ||
2862 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2863 | newMBKernel + strlen(prefix), config->cfi); | ||
2864 | needs &= ~NEED_MB; | ||
2865 | } | ||
2866 | niro | 532 | |
2867 | niro | 914 | } else if (tmplLine->type == LT_MBMODULE && |
2868 | tmplLine->numElements >= 2) { | ||
2869 | if (new->multiboot) { | ||
2870 | if (needs & NEED_KERNEL) { | ||
2871 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2872 | newKernelPath + | ||
2873 | strlen(prefix), config->cfi); | ||
2874 | needs &= ~NEED_KERNEL; | ||
2875 | } else if (config->cfi->mbInitRdIsModule && | ||
2876 | (needs & NEED_INITRD)) { | ||
2877 | char *initrdVal; | ||
2878 | initrdVal = getInitrdVal(config, prefix, tmplLine, | ||
2879 | newKernelInitrd, extraInitrds, | ||
2880 | extraInitrdCount); | ||
2881 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2882 | initrdVal, config->cfi); | ||
2883 | free(initrdVal); | ||
2884 | needs &= ~NEED_INITRD; | ||
2885 | } | ||
2886 | } else if (needs & NEED_KERNEL) { | ||
2887 | /* template is multi but new is not, | ||
2888 | * insert the kernel in the first module slot | ||
2889 | */ | ||
2890 | tmplLine->type = LT_KERNEL; | ||
2891 | free(tmplLine->elements[0].item); | ||
2892 | tmplLine->elements[0].item = | ||
2893 | strdup(getKeywordByType(LT_KERNEL, config->cfi)->key); | ||
2894 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2895 | newKernelPath + strlen(prefix), config->cfi); | ||
2896 | needs &= ~NEED_KERNEL; | ||
2897 | } else if (needs & NEED_INITRD) { | ||
2898 | char *initrdVal; | ||
2899 | /* template is multi but new is not, | ||
2900 | * insert the initrd in the second module slot | ||
2901 | */ | ||
2902 | tmplLine->type = LT_INITRD; | ||
2903 | free(tmplLine->elements[0].item); | ||
2904 | tmplLine->elements[0].item = | ||
2905 | strdup(getKeywordByType(LT_INITRD, config->cfi)->key); | ||
2906 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
2907 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
2908 | free(initrdVal); | ||
2909 | needs &= ~NEED_INITRD; | ||
2910 | } | ||
2911 | niro | 532 | |
2912 | } else if (tmplLine->type == LT_INITRD && | ||
2913 | niro | 914 | tmplLine->numElements >= 2) { |
2914 | if (needs & NEED_INITRD && | ||
2915 | new->multiboot && !template->multiboot && | ||
2916 | config->cfi->mbInitRdIsModule) { | ||
2917 | /* make sure we don't insert the module initrd | ||
2918 | * before the module kernel... if we don't do it here, | ||
2919 | * it will be inserted following the template. | ||
2920 | */ | ||
2921 | if (!needs & NEED_KERNEL) { | ||
2922 | char *initrdVal; | ||
2923 | |||
2924 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
2925 | newLine = addLine(new, config->cfi, LT_MBMODULE, | ||
2926 | config->secondaryIndent, | ||
2927 | initrdVal); | ||
2928 | free(initrdVal); | ||
2929 | needs &= ~NEED_INITRD; | ||
2930 | } | ||
2931 | } else if (needs & NEED_INITRD) { | ||
2932 | char *initrdVal; | ||
2933 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
2934 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
2935 | free(initrdVal); | ||
2936 | needs &= ~NEED_INITRD; | ||
2937 | niro | 532 | } |
2938 | |||
2939 | niro | 1696 | } else if (tmplLine->type == LT_MENUENTRY && |
2940 | (needs & NEED_TITLE)) { | ||
2941 | requote(tmplLine, config->cfi); | ||
2942 | char *nkt = malloc(strlen(newKernelTitle)+3); | ||
2943 | strcpy(nkt, "'"); | ||
2944 | strcat(nkt, newKernelTitle); | ||
2945 | strcat(nkt, "'"); | ||
2946 | newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi); | ||
2947 | free(nkt); | ||
2948 | needs &= ~NEED_TITLE; | ||
2949 | niro | 532 | } else if (tmplLine->type == LT_TITLE && |
2950 | niro | 914 | (needs & NEED_TITLE)) { |
2951 | if (tmplLine->numElements >= 2) { | ||
2952 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
2953 | newKernelTitle, config->cfi); | ||
2954 | needs &= ~NEED_TITLE; | ||
2955 | } else if (tmplLine->numElements == 1 && | ||
2956 | config->cfi->titleBracketed) { | ||
2957 | /* addLineTmpl doesn't handle titleBracketed */ | ||
2958 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
2959 | tmplLine->indent, newKernelTitle); | ||
2960 | needs &= ~NEED_TITLE; | ||
2961 | } | ||
2962 | niro | 1696 | } else if (tmplLine->type == LT_ECHO) { |
2963 | requote(tmplLine, config->cfi); | ||
2964 | if (tmplLine->numElements > 1 && | ||
2965 | strstr(tmplLine->elements[1].item, "'Loading Linux ")) { | ||
2966 | char *prefix = "'Loading "; | ||
2967 | char *newTitle = malloc(strlen(prefix) + | ||
2968 | strlen(newKernelTitle) + 2); | ||
2969 | niro | 532 | |
2970 | niro | 1696 | strcpy(newTitle, prefix); |
2971 | strcat(newTitle, newKernelTitle); | ||
2972 | strcat(newTitle, "'"); | ||
2973 | newLine = addLine(new, config->cfi, LT_ECHO, | ||
2974 | tmplLine->indent, newTitle); | ||
2975 | free(newTitle); | ||
2976 | } else { | ||
2977 | /* pass through other lines from the template */ | ||
2978 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, | ||
2979 | config->cfi); | ||
2980 | } | ||
2981 | niro | 914 | } else { |
2982 | /* pass through other lines from the template */ | ||
2983 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi); | ||
2984 | } | ||
2985 | niro | 532 | } |
2986 | niro | 914 | |
2987 | niro | 532 | } else { |
2988 | niro | 914 | /* don't have a template, so start the entry with the |
2989 | * appropriate starting line | ||
2990 | */ | ||
2991 | niro | 1693 | switch (config->cfi->entryStart) { |
2992 | niro | 914 | case LT_KERNEL: |
2993 | if (new->multiboot && config->cfi->mbHyperFirst) { | ||
2994 | /* fall through to LT_HYPER */ | ||
2995 | } else { | ||
2996 | newLine = addLine(new, config->cfi, LT_KERNEL, | ||
2997 | config->primaryIndent, | ||
2998 | newKernelPath + strlen(prefix)); | ||
2999 | needs &= ~NEED_KERNEL; | ||
3000 | break; | ||
3001 | } | ||
3002 | |||
3003 | case LT_HYPER: | ||
3004 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3005 | config->primaryIndent, | ||
3006 | newMBKernel + strlen(prefix)); | ||
3007 | needs &= ~NEED_MB; | ||
3008 | niro | 532 | break; |
3009 | |||
3010 | niro | 1696 | case LT_MENUENTRY: { |
3011 | char *nkt = malloc(strlen(newKernelTitle)+3); | ||
3012 | strcpy(nkt, "'"); | ||
3013 | strcat(nkt, newKernelTitle); | ||
3014 | strcat(nkt, "'"); | ||
3015 | newLine = addLine(new, config->cfi, LT_MENUENTRY, | ||
3016 | config->primaryIndent, nkt); | ||
3017 | free(nkt); | ||
3018 | needs &= ~NEED_TITLE; | ||
3019 | needs |= NEED_END; | ||
3020 | break; | ||
3021 | } | ||
3022 | niro | 914 | case LT_TITLE: |
3023 | if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above) | ||
3024 | char * templabel; | ||
3025 | int x = 0, y = 0; | ||
3026 | |||
3027 | templabel = strdup(newKernelTitle); | ||
3028 | while( templabel[x]){ | ||
3029 | if( templabel[x] == ' ' ){ | ||
3030 | y = x; | ||
3031 | while( templabel[y] ){ | ||
3032 | templabel[y] = templabel[y+1]; | ||
3033 | y++; | ||
3034 | } | ||
3035 | } | ||
3036 | x++; | ||
3037 | } | ||
3038 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3039 | config->primaryIndent, templabel); | ||
3040 | free(templabel); | ||
3041 | }else{ | ||
3042 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3043 | config->primaryIndent, newKernelTitle); | ||
3044 | } | ||
3045 | needs &= ~NEED_TITLE; | ||
3046 | break; | ||
3047 | |||
3048 | default: | ||
3049 | abort(); | ||
3050 | niro | 532 | } |
3051 | } | ||
3052 | |||
3053 | niro | 914 | /* add the remainder of the lines, i.e. those that either |
3054 | * weren't present in the template, or in the case of no template, | ||
3055 | niro | 1693 | * all the lines following the entryStart. |
3056 | niro | 914 | */ |
3057 | if (needs & NEED_TITLE) { | ||
3058 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3059 | config->secondaryIndent, | ||
3060 | newKernelTitle); | ||
3061 | needs &= ~NEED_TITLE; | ||
3062 | niro | 532 | } |
3063 | niro | 914 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
3064 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3065 | config->secondaryIndent, | ||
3066 | newMBKernel + strlen(prefix)); | ||
3067 | needs &= ~NEED_MB; | ||
3068 | } | ||
3069 | if (needs & NEED_KERNEL) { | ||
3070 | newLine = addLine(new, config->cfi, | ||
3071 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
3072 | config->cfi)) ? | ||
3073 | LT_MBMODULE : LT_KERNEL, | ||
3074 | config->secondaryIndent, | ||
3075 | newKernelPath + strlen(prefix)); | ||
3076 | needs &= ~NEED_KERNEL; | ||
3077 | } | ||
3078 | if (needs & NEED_MB) { | ||
3079 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3080 | config->secondaryIndent, | ||
3081 | newMBKernel + strlen(prefix)); | ||
3082 | needs &= ~NEED_MB; | ||
3083 | } | ||
3084 | if (needs & NEED_INITRD) { | ||
3085 | char *initrdVal; | ||
3086 | initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3087 | newLine = addLine(new, config->cfi, | ||
3088 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
3089 | config->cfi)) ? | ||
3090 | LT_MBMODULE : LT_INITRD, | ||
3091 | config->secondaryIndent, | ||
3092 | initrdVal); | ||
3093 | free(initrdVal); | ||
3094 | needs &= ~NEED_INITRD; | ||
3095 | } | ||
3096 | niro | 1696 | if (needs & NEED_END) { |
3097 | newLine = addLine(new, config->cfi, LT_ENTRY_END, | ||
3098 | config->secondaryIndent, NULL); | ||
3099 | needs &= ~NEED_END; | ||
3100 | } | ||
3101 | niro | 532 | |
3102 | niro | 914 | if (needs) { |
3103 | printf(_("grubby: needs=%d, aborting\n"), needs); | ||
3104 | abort(); | ||
3105 | } | ||
3106 | |||
3107 | niro | 532 | if (updateImage(config, "0", prefix, newKernelArgs, NULL, |
3108 | newMBKernelArgs, NULL)) return 1; | ||
3109 | |||
3110 | return 0; | ||
3111 | } | ||
3112 | |||
3113 | niro | 914 | static void traceback(int signum) |
3114 | { | ||
3115 | void *array[40]; | ||
3116 | size_t size; | ||
3117 | |||
3118 | signal(SIGSEGV, SIG_DFL); | ||
3119 | memset(array, '\0', sizeof (array)); | ||
3120 | size = backtrace(array, 40); | ||
3121 | |||
3122 | fprintf(stderr, "grubby recieved SIGSEGV! Backtrace (%ld):\n", | ||
3123 | (unsigned long)size); | ||
3124 | backtrace_symbols_fd(array, size, STDERR_FILENO); | ||
3125 | exit(1); | ||
3126 | } | ||
3127 | |||
3128 | niro | 532 | int main(int argc, const char ** argv) { |
3129 | poptContext optCon; | ||
3130 | niro | 1696 | const char * grubConfig = NULL; |
3131 | niro | 532 | char * outputFile = NULL; |
3132 | int arg = 0; | ||
3133 | int flags = 0; | ||
3134 | int badImageOkay = 0; | ||
3135 | niro | 1696 | int configureGrub2 = 0; |
3136 | niro | 532 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
3137 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; | ||
3138 | niro | 914 | int configureExtLinux = 0; |
3139 | niro | 532 | int bootloaderProbe = 0; |
3140 | niro | 914 | int extraInitrdCount = 0; |
3141 | niro | 532 | char * updateKernelPath = NULL; |
3142 | char * newKernelPath = NULL; | ||
3143 | char * removeKernelPath = NULL; | ||
3144 | char * newKernelArgs = NULL; | ||
3145 | char * newKernelInitrd = NULL; | ||
3146 | char * newKernelTitle = NULL; | ||
3147 | char * newKernelVersion = NULL; | ||
3148 | char * newMBKernel = NULL; | ||
3149 | char * newMBKernelArgs = NULL; | ||
3150 | char * removeMBKernelArgs = NULL; | ||
3151 | char * removeMBKernel = NULL; | ||
3152 | char * bootPrefix = NULL; | ||
3153 | char * defaultKernel = NULL; | ||
3154 | char * removeArgs = NULL; | ||
3155 | char * kernelInfo = NULL; | ||
3156 | niro | 914 | char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
3157 | niro | 532 | const char * chptr = NULL; |
3158 | struct configFileInfo * cfi = NULL; | ||
3159 | struct grubConfig * config; | ||
3160 | struct singleEntry * template = NULL; | ||
3161 | int copyDefault = 0, makeDefault = 0; | ||
3162 | int displayDefault = 0; | ||
3163 | struct poptOption options[] = { | ||
3164 | { "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, | ||
3165 | _("add an entry for the specified kernel"), _("kernel-path") }, | ||
3166 | { "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, | ||
3167 | _("add an entry for the specified multiboot kernel"), NULL }, | ||
3168 | { "args", 0, POPT_ARG_STRING, &newKernelArgs, 0, | ||
3169 | _("default arguments for the new kernel or new arguments for " | ||
3170 | "kernel being updated"), _("args") }, | ||
3171 | { "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, | ||
3172 | _("default arguments for the new multiboot kernel or " | ||
3173 | "new arguments for multiboot kernel being updated"), NULL }, | ||
3174 | { "bad-image-okay", 0, 0, &badImageOkay, 0, | ||
3175 | _("don't sanity check images in boot entries (for testing only)"), | ||
3176 | NULL }, | ||
3177 | { "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, | ||
3178 | _("filestystem which contains /boot directory (for testing only)"), | ||
3179 | _("bootfs") }, | ||
3180 | #if defined(__i386__) || defined(__x86_64__) | ||
3181 | { "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, | ||
3182 | _("check if lilo is installed on lilo.conf boot sector") }, | ||
3183 | #endif | ||
3184 | { "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, | ||
3185 | _("path to grub config file to update (\"-\" for stdin)"), | ||
3186 | _("path") }, | ||
3187 | { "copy-default", 0, 0, ©Default, 0, | ||
3188 | _("use the default boot entry as a template for the new entry " | ||
3189 | "being added; if the default is not a linux image, or if " | ||
3190 | "the kernel referenced by the default image does not exist, " | ||
3191 | "the first linux entry whose kernel does exist is used as the " | ||
3192 | "template"), NULL }, | ||
3193 | { "default-kernel", 0, 0, &displayDefault, 0, | ||
3194 | _("display the path of the default kernel") }, | ||
3195 | { "elilo", 0, POPT_ARG_NONE, &configureELilo, 0, | ||
3196 | _("configure elilo bootloader") }, | ||
3197 | niro | 914 | { "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
3198 | _("configure extlinux bootloader (from syslinux)") }, | ||
3199 | niro | 532 | { "grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
3200 | _("configure grub bootloader") }, | ||
3201 | niro | 1696 | { "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
3202 | _("configure grub2 bootloader") }, | ||
3203 | niro | 532 | { "info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
3204 | _("display boot information for specified kernel"), | ||
3205 | _("kernel-path") }, | ||
3206 | { "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, | ||
3207 | _("initrd image for the new kernel"), _("initrd-path") }, | ||
3208 | niro | 914 | { "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
3209 | _("auxilliary initrd image for things other than the new kernel"), _("initrd-path") }, | ||
3210 | niro | 532 | { "lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
3211 | _("configure lilo bootloader") }, | ||
3212 | { "make-default", 0, 0, &makeDefault, 0, | ||
3213 | _("make the newly added entry the default boot entry"), NULL }, | ||
3214 | { "output-file", 'o', POPT_ARG_STRING, &outputFile, 0, | ||
3215 | _("path to output updated config file (\"-\" for stdout)"), | ||
3216 | _("path") }, | ||
3217 | { "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, | ||
3218 | _("remove kernel arguments"), NULL }, | ||
3219 | { "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, | ||
3220 | _("remove multiboot kernel arguments"), NULL }, | ||
3221 | { "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, | ||
3222 | _("remove all entries for the specified kernel"), | ||
3223 | _("kernel-path") }, | ||
3224 | { "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, | ||
3225 | _("remove all entries for the specified multiboot kernel"), NULL }, | ||
3226 | { "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, | ||
3227 | _("make the first entry referencing the specified kernel " | ||
3228 | "the default"), _("kernel-path") }, | ||
3229 | { "silo", 0, POPT_ARG_NONE, &configureSilo, 0, | ||
3230 | _("configure silo bootloader") }, | ||
3231 | { "title", 0, POPT_ARG_STRING, &newKernelTitle, 0, | ||
3232 | _("title to use for the new kernel entry"), _("entry-title") }, | ||
3233 | { "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, | ||
3234 | _("updated information for the specified kernel"), | ||
3235 | _("kernel-path") }, | ||
3236 | { "version", 'v', 0, NULL, 'v', | ||
3237 | _("print the version of this program and exit"), NULL }, | ||
3238 | { "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, | ||
3239 | _("configure yaboot bootloader") }, | ||
3240 | { "zipl", 0, POPT_ARG_NONE, &configureZipl, 0, | ||
3241 | _("configure zipl bootloader") }, | ||
3242 | POPT_AUTOHELP | ||
3243 | { 0, 0, 0, 0, 0 } | ||
3244 | }; | ||
3245 | |||
3246 | niro | 914 | useextlinuxmenu=0; |
3247 | |||
3248 | signal(SIGSEGV, traceback); | ||
3249 | |||
3250 | niro | 532 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
3251 | poptReadDefaultConfig(optCon, 1); | ||
3252 | |||
3253 | while ((arg = poptGetNextOpt(optCon)) >= 0) { | ||
3254 | switch (arg) { | ||
3255 | case 'v': | ||
3256 | printf("grubby version %s\n", VERSION); | ||
3257 | exit(0); | ||
3258 | break; | ||
3259 | niro | 914 | case 'i': |
3260 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { | ||
3261 | extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon)); | ||
3262 | } else { | ||
3263 | fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount); | ||
3264 | return 1; | ||
3265 | } | ||
3266 | break; | ||
3267 | niro | 532 | } |
3268 | } | ||
3269 | |||
3270 | if (arg < -1) { | ||
3271 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), | ||
3272 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), | ||
3273 | poptStrerror(arg)); | ||
3274 | return 1; | ||
3275 | } | ||
3276 | |||
3277 | if ((chptr = poptGetArg(optCon))) { | ||
3278 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); | ||
3279 | return 1; | ||
3280 | } | ||
3281 | |||
3282 | niro | 1696 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
3283 | niro | 914 | configureYaboot + configureSilo + configureZipl + |
3284 | configureExtLinux ) > 1) { | ||
3285 | niro | 532 | fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n")); |
3286 | return 1; | ||
3287 | } else if (bootloaderProbe && grubConfig) { | ||
3288 | fprintf(stderr, | ||
3289 | _("grubby: cannot specify config file with --bootloader-probe\n")); | ||
3290 | return 1; | ||
3291 | niro | 1696 | } else if (configureGrub2) { |
3292 | cfi = &grub2ConfigType; | ||
3293 | niro | 532 | } else if (configureLilo) { |
3294 | cfi = &liloConfigType; | ||
3295 | } else if (configureGrub) { | ||
3296 | cfi = &grubConfigType; | ||
3297 | } else if (configureELilo) { | ||
3298 | cfi = &eliloConfigType; | ||
3299 | } else if (configureYaboot) { | ||
3300 | cfi = &yabootConfigType; | ||
3301 | } else if (configureSilo) { | ||
3302 | cfi = &siloConfigType; | ||
3303 | } else if (configureZipl) { | ||
3304 | cfi = &ziplConfigType; | ||
3305 | niro | 914 | } else if (configureExtLinux) { |
3306 | cfi = &extlinuxConfigType; | ||
3307 | useextlinuxmenu=1; | ||
3308 | niro | 532 | } |
3309 | |||
3310 | if (!cfi) { | ||
3311 | #ifdef __ia64__ | ||
3312 | cfi = &eliloConfigType; | ||
3313 | #elif __powerpc__ | ||
3314 | cfi = &yabootConfigType; | ||
3315 | #elif __sparc__ | ||
3316 | cfi = &siloConfigType; | ||
3317 | #elif __s390__ | ||
3318 | cfi = &ziplConfigType; | ||
3319 | #elif __s390x__ | ||
3320 | cfi = &ziplConfigtype; | ||
3321 | #else | ||
3322 | niro | 1696 | if (grub2FindConfig(&grub2ConfigType)) |
3323 | cfi = &grub2ConfigType; | ||
3324 | else | ||
3325 | cfi = &grubConfigType; | ||
3326 | niro | 532 | #endif |
3327 | } | ||
3328 | |||
3329 | niro | 1696 | if (!grubConfig) { |
3330 | if (cfi->findConfig) | ||
3331 | grubConfig = cfi->findConfig(cfi); | ||
3332 | if (!grubConfig) | ||
3333 | grubConfig = cfi->defaultConfig; | ||
3334 | } | ||
3335 | niro | 532 | |
3336 | if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion || | ||
3337 | newKernelPath || removeKernelPath || makeDefault || | ||
3338 | defaultKernel)) { | ||
3339 | fprintf(stderr, _("grubby: --bootloader-probe may not be used with " | ||
3340 | "specified option")); | ||
3341 | return 1; | ||
3342 | } | ||
3343 | |||
3344 | if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath || | ||
3345 | removeKernelPath)) { | ||
3346 | fprintf(stderr, _("grubby: --default-kernel and --info may not " | ||
3347 | "be used when adding or removing kernels\n")); | ||
3348 | return 1; | ||
3349 | } | ||
3350 | |||
3351 | if (newKernelPath && !newKernelTitle) { | ||
3352 | fprintf(stderr, _("grubby: kernel title must be specified\n")); | ||
3353 | return 1; | ||
3354 | niro | 1156 | } else if (!newKernelPath && (newKernelTitle || copyDefault || |
3355 | (newKernelInitrd && !updateKernelPath)|| | ||
3356 | niro | 914 | makeDefault || extraInitrdCount > 0)) { |
3357 | niro | 532 | fprintf(stderr, _("grubby: kernel path expected\n")); |
3358 | return 1; | ||
3359 | } | ||
3360 | |||
3361 | if (newKernelPath && updateKernelPath) { | ||
3362 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" | ||
3363 | "not be used together")); | ||
3364 | return 1; | ||
3365 | } | ||
3366 | |||
3367 | if (makeDefault && defaultKernel) { | ||
3368 | fprintf(stderr, _("grubby: --make-default and --default-kernel " | ||
3369 | "may not be used together\n")); | ||
3370 | return 1; | ||
3371 | } else if (defaultKernel && removeKernelPath && | ||
3372 | !strcmp(defaultKernel, removeKernelPath)) { | ||
3373 | fprintf(stderr, _("grubby: cannot make removed kernel the default\n")); | ||
3374 | return 1; | ||
3375 | } else if (defaultKernel && newKernelPath && | ||
3376 | !strcmp(defaultKernel, newKernelPath)) { | ||
3377 | makeDefault = 1; | ||
3378 | defaultKernel = NULL; | ||
3379 | } | ||
3380 | |||
3381 | niro | 1717 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
3382 | niro | 532 | fprintf(stderr, _("grubby: output file must be specified if stdin " |
3383 | "is used\n")); | ||
3384 | return 1; | ||
3385 | } | ||
3386 | |||
3387 | if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel | ||
3388 | && !kernelInfo && !bootloaderProbe && !updateKernelPath | ||
3389 | && !removeMBKernel) { | ||
3390 | fprintf(stderr, _("grubby: no action specified\n")); | ||
3391 | return 1; | ||
3392 | } | ||
3393 | |||
3394 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; | ||
3395 | |||
3396 | if (cfi->needsBootPrefix) { | ||
3397 | if (!bootPrefix) { | ||
3398 | bootPrefix = findBootPrefix(); | ||
3399 | if (!bootPrefix) return 1; | ||
3400 | } else { | ||
3401 | /* this shouldn't end with a / */ | ||
3402 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') | ||
3403 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; | ||
3404 | } | ||
3405 | } else { | ||
3406 | bootPrefix = ""; | ||
3407 | } | ||
3408 | |||
3409 | niro | 914 | if (!cfi->mbAllowExtraInitRds && |
3410 | extraInitrdCount > 0) { | ||
3411 | fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig); | ||
3412 | return 1; | ||
3413 | } | ||
3414 | |||
3415 | niro | 532 | if (bootloaderProbe) { |
3416 | niro | 1696 | int lrc = 0, grc = 0, gr2c = 0, erc = 0; |
3417 | niro | 532 | struct grubConfig * lconfig, * gconfig; |
3418 | |||
3419 | niro | 1696 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
3420 | if (grub2config) { | ||
3421 | gconfig = readConfig(grub2config, &grub2ConfigType); | ||
3422 | if (!gconfig) | ||
3423 | gr2c = 1; | ||
3424 | else | ||
3425 | gr2c = checkForGrub2(gconfig); | ||
3426 | } | ||
3427 | |||
3428 | niro | 1715 | const char *grubconfig = grubFindConfig(&grubConfigType); |
3429 | if (!access(grubconfig, F_OK)) { | ||
3430 | gconfig = readConfig(grubconfig, &grubConfigType); | ||
3431 | niro | 532 | if (!gconfig) |
3432 | grc = 1; | ||
3433 | else | ||
3434 | grc = checkForGrub(gconfig); | ||
3435 | } | ||
3436 | |||
3437 | if (!access(liloConfigType.defaultConfig, F_OK)) { | ||
3438 | lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType); | ||
3439 | if (!lconfig) | ||
3440 | lrc = 1; | ||
3441 | else | ||
3442 | lrc = checkForLilo(lconfig); | ||
3443 | } | ||
3444 | |||
3445 | niro | 914 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
3446 | lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType); | ||
3447 | if (!lconfig) | ||
3448 | erc = 1; | ||
3449 | else | ||
3450 | erc = checkForExtLinux(lconfig); | ||
3451 | } | ||
3452 | |||
3453 | niro | 1696 | if (lrc == 1 || grc == 1 || gr2c == 1) return 1; |
3454 | niro | 532 | |
3455 | if (lrc == 2) printf("lilo\n"); | ||
3456 | niro | 1696 | if (gr2c == 2) printf("grub2\n"); |
3457 | niro | 532 | if (grc == 2) printf("grub\n"); |
3458 | niro | 914 | if (erc == 2) printf("extlinux\n"); |
3459 | niro | 532 | |
3460 | return 0; | ||
3461 | } | ||
3462 | |||
3463 | config = readConfig(grubConfig, cfi); | ||
3464 | if (!config) return 1; | ||
3465 | |||
3466 | if (displayDefault) { | ||
3467 | struct singleLine * line; | ||
3468 | struct singleEntry * entry; | ||
3469 | char * rootspec; | ||
3470 | |||
3471 | if (config->defaultImage == -1) return 0; | ||
3472 | entry = findEntryByIndex(config, config->defaultImage); | ||
3473 | if (!entry) return 0; | ||
3474 | if (!suitableImage(entry, bootPrefix, 0, flags)) return 0; | ||
3475 | |||
3476 | niro | 914 | line = getLineByType(LT_KERNEL|LT_HYPER, entry->lines); |
3477 | niro | 532 | if (!line) return 0; |
3478 | |||
3479 | rootspec = getRootSpecifier(line->elements[1].item); | ||
3480 | printf("%s%s\n", bootPrefix, line->elements[1].item + | ||
3481 | ((rootspec != NULL) ? strlen(rootspec) : 0)); | ||
3482 | |||
3483 | return 0; | ||
3484 | } else if (kernelInfo) | ||
3485 | return displayInfo(config, kernelInfo, bootPrefix); | ||
3486 | |||
3487 | if (copyDefault) { | ||
3488 | template = findTemplate(config, bootPrefix, NULL, 0, flags); | ||
3489 | if (!template) return 1; | ||
3490 | } | ||
3491 | |||
3492 | markRemovedImage(config, removeKernelPath, bootPrefix); | ||
3493 | markRemovedImage(config, removeMBKernel, bootPrefix); | ||
3494 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault, | ||
3495 | bootPrefix, flags); | ||
3496 | setFallbackImage(config, newKernelPath != NULL); | ||
3497 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, | ||
3498 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1; | ||
3499 | niro | 1156 | if (updateKernelPath && newKernelInitrd) { |
3500 | if (updateInitrd(config, updateKernelPath, bootPrefix, | ||
3501 | newKernelInitrd)) return 1; | ||
3502 | } | ||
3503 | niro | 532 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
3504 | newKernelTitle, newKernelArgs, newKernelInitrd, | ||
3505 | niro | 914 | extraInitrds, extraInitrdCount, |
3506 | niro | 532 | newMBKernel, newMBKernelArgs)) return 1; |
3507 | |||
3508 | |||
3509 | if (numEntries(config) == 0) { | ||
3510 | fprintf(stderr, _("grubby: doing this would leave no kernel entries. " | ||
3511 | "Not writing out new config.\n")); | ||
3512 | return 1; | ||
3513 | } | ||
3514 | |||
3515 | if (!outputFile) | ||
3516 | niro | 1696 | outputFile = (char *)grubConfig; |
3517 | niro | 532 | |
3518 | return writeConfig(config, outputFile, bootPrefix); | ||
3519 | } |