Annotation of /trunk/grubby/grubby.c
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Mon Oct 21 14:01:48 2013 UTC (10 years, 11 months ago) by niro
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Mon Oct 21 14:01:48 2013 UTC (10 years, 11 months ago) by niro
File MIME type: text/plain
File size: 124814 byte(s)
Attempt to compensate for shell quoting in grub names.
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 | 2236 | #include "log.h" |
40 | |||
41 | niro | 1694 | #ifndef DEBUG |
42 | niro | 914 | #define DEBUG 0 |
43 | niro | 1694 | #endif |
44 | niro | 532 | |
45 | niro | 914 | #if DEBUG |
46 | #define dbgPrintf(format, args...) fprintf(stderr, format , ## args) | ||
47 | #else | ||
48 | #define dbgPrintf(format, args...) | ||
49 | #endif | ||
50 | |||
51 | niro | 1736 | int debug = 0; /* Currently just for template debugging */ |
52 | |||
53 | niro | 532 | #define _(A) (A) |
54 | |||
55 | niro | 914 | #define MAX_EXTRA_INITRDS 16 /* code segment checked by --bootloader-probe */ |
56 | niro | 532 | #define CODE_SEG_SIZE 128 /* code segment checked by --bootloader-probe */ |
57 | |||
58 | niro | 1718 | #define NOOP_OPCODE 0x90 |
59 | #define JMP_SHORT_OPCODE 0xeb | ||
60 | |||
61 | niro | 1940 | int isEfi = 0; |
62 | |||
63 | niro | 2236 | char *saved_command_line = NULL; |
64 | |||
65 | niro | 532 | /* comments get lumped in with indention */ |
66 | struct lineElement { | ||
67 | char * item; | ||
68 | char * indent; | ||
69 | }; | ||
70 | |||
71 | niro | 914 | enum lineType_e { |
72 | niro | 1696 | LT_WHITESPACE = 1 << 0, |
73 | LT_TITLE = 1 << 1, | ||
74 | LT_KERNEL = 1 << 2, | ||
75 | LT_INITRD = 1 << 3, | ||
76 | LT_HYPER = 1 << 4, | ||
77 | LT_DEFAULT = 1 << 5, | ||
78 | LT_MBMODULE = 1 << 6, | ||
79 | LT_ROOT = 1 << 7, | ||
80 | LT_FALLBACK = 1 << 8, | ||
81 | LT_KERNELARGS = 1 << 9, | ||
82 | LT_BOOT = 1 << 10, | ||
83 | LT_BOOTROOT = 1 << 11, | ||
84 | LT_LBA = 1 << 12, | ||
85 | LT_OTHER = 1 << 13, | ||
86 | LT_GENERIC = 1 << 14, | ||
87 | LT_ECHO = 1 << 16, | ||
88 | LT_MENUENTRY = 1 << 17, | ||
89 | LT_ENTRY_END = 1 << 18, | ||
90 | LT_SET_VARIABLE = 1 << 19, | ||
91 | niro | 1940 | LT_KERNEL_EFI = 1 << 20, |
92 | LT_INITRD_EFI = 1 << 21, | ||
93 | LT_UNKNOWN = 1 << 22, | ||
94 | niro | 914 | }; |
95 | niro | 532 | |
96 | struct singleLine { | ||
97 | char * indent; | ||
98 | int numElements; | ||
99 | struct lineElement * elements; | ||
100 | struct singleLine * next; | ||
101 | enum lineType_e type; | ||
102 | }; | ||
103 | |||
104 | struct singleEntry { | ||
105 | struct singleLine * lines; | ||
106 | int skip; | ||
107 | int multiboot; | ||
108 | struct singleEntry * next; | ||
109 | }; | ||
110 | |||
111 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) | ||
112 | |||
113 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ | ||
114 | |||
115 | niro | 914 | /* These defines are (only) used in addNewKernel() */ |
116 | #define NEED_KERNEL (1 << 0) | ||
117 | #define NEED_INITRD (1 << 1) | ||
118 | #define NEED_TITLE (1 << 2) | ||
119 | #define NEED_ARGS (1 << 3) | ||
120 | #define NEED_MB (1 << 4) | ||
121 | niro | 1696 | #define NEED_END (1 << 5) |
122 | niro | 532 | |
123 | #define MAIN_DEFAULT (1 << 0) | ||
124 | #define DEFAULT_SAVED -2 | ||
125 | niro | 1748 | #define DEFAULT_SAVED_GRUB2 -3 |
126 | niro | 532 | |
127 | struct keywordTypes { | ||
128 | char * key; | ||
129 | enum lineType_e type; | ||
130 | char nextChar; | ||
131 | niro | 914 | char separatorChar; |
132 | }; | ||
133 | niro | 532 | |
134 | niro | 1696 | struct configFileInfo; |
135 | |||
136 | typedef const char *(*findConfigFunc)(struct configFileInfo *); | ||
137 | typedef const int (*writeLineFunc)(struct configFileInfo *, | ||
138 | struct singleLine *line); | ||
139 | niro | 2252 | typedef char *(*getEnvFunc)(struct configFileInfo *, char *name); |
140 | typedef int (*setEnvFunc)(struct configFileInfo *, char *name, char *value); | ||
141 | niro | 1696 | |
142 | niro | 532 | struct configFileInfo { |
143 | char * defaultConfig; | ||
144 | niro | 1696 | findConfigFunc findConfig; |
145 | writeLineFunc writeLine; | ||
146 | niro | 2252 | getEnvFunc getEnv; |
147 | setEnvFunc setEnv; | ||
148 | niro | 532 | struct keywordTypes * keywords; |
149 | niro | 2056 | int caseInsensitive; |
150 | niro | 532 | int defaultIsIndex; |
151 | niro | 1696 | int defaultIsVariable; |
152 | niro | 532 | int defaultSupportSaved; |
153 | niro | 2252 | int defaultIsSaved; |
154 | niro | 1693 | enum lineType_e entryStart; |
155 | niro | 1696 | enum lineType_e entryEnd; |
156 | niro | 532 | int needsBootPrefix; |
157 | int argsInQuotes; | ||
158 | int maxTitleLength; | ||
159 | int titleBracketed; | ||
160 | niro | 1696 | int titlePosition; |
161 | niro | 914 | int mbHyperFirst; |
162 | int mbInitRdIsModule; | ||
163 | int mbConcatArgs; | ||
164 | int mbAllowExtraInitRds; | ||
165 | niro | 2252 | char *envFile; |
166 | niro | 532 | }; |
167 | |||
168 | struct keywordTypes grubKeywords[] = { | ||
169 | { "title", LT_TITLE, ' ' }, | ||
170 | { "root", LT_BOOTROOT, ' ' }, | ||
171 | { "default", LT_DEFAULT, ' ' }, | ||
172 | { "fallback", LT_FALLBACK, ' ' }, | ||
173 | { "kernel", LT_KERNEL, ' ' }, | ||
174 | niro | 914 | { "initrd", LT_INITRD, ' ', ' ' }, |
175 | niro | 532 | { "module", LT_MBMODULE, ' ' }, |
176 | niro | 914 | { "kernel", LT_HYPER, ' ' }, |
177 | niro | 532 | { NULL, 0, 0 }, |
178 | }; | ||
179 | |||
180 | niro | 1715 | const char *grubFindConfig(struct configFileInfo *cfi) { |
181 | static const char *configFiles[] = { | ||
182 | "/boot/grub/grub.conf", | ||
183 | "/boot/grub/menu.lst", | ||
184 | niro | 1852 | "/etc/grub.conf", |
185 | niro | 1715 | NULL |
186 | }; | ||
187 | static int i = -1; | ||
188 | |||
189 | if (i == -1) { | ||
190 | for (i = 0; configFiles[i] != NULL; i++) { | ||
191 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
192 | if (!access(configFiles[i], R_OK)) { | ||
193 | dbgPrintf("found\n"); | ||
194 | return configFiles[i]; | ||
195 | } | ||
196 | dbgPrintf("not found\n"); | ||
197 | } | ||
198 | } | ||
199 | return configFiles[i]; | ||
200 | } | ||
201 | |||
202 | niro | 532 | struct configFileInfo grubConfigType = { |
203 | niro | 1715 | .findConfig = grubFindConfig, |
204 | niro | 1692 | .keywords = grubKeywords, |
205 | .defaultIsIndex = 1, | ||
206 | .defaultSupportSaved = 1, | ||
207 | niro | 1693 | .entryStart = LT_TITLE, |
208 | niro | 1692 | .needsBootPrefix = 1, |
209 | .mbHyperFirst = 1, | ||
210 | .mbInitRdIsModule = 1, | ||
211 | .mbAllowExtraInitRds = 1, | ||
212 | niro | 532 | }; |
213 | |||
214 | niro | 1696 | struct keywordTypes grub2Keywords[] = { |
215 | { "menuentry", LT_MENUENTRY, ' ' }, | ||
216 | { "}", LT_ENTRY_END, ' ' }, | ||
217 | { "echo", LT_ECHO, ' ' }, | ||
218 | { "set", LT_SET_VARIABLE,' ', '=' }, | ||
219 | { "root", LT_BOOTROOT, ' ' }, | ||
220 | { "default", LT_DEFAULT, ' ' }, | ||
221 | { "fallback", LT_FALLBACK, ' ' }, | ||
222 | { "linux", LT_KERNEL, ' ' }, | ||
223 | niro | 1940 | { "linuxefi", LT_KERNEL_EFI, ' ' }, |
224 | niro | 1696 | { "initrd", LT_INITRD, ' ', ' ' }, |
225 | niro | 1940 | { "initrdefi", LT_INITRD_EFI, ' ', ' ' }, |
226 | niro | 1696 | { "module", LT_MBMODULE, ' ' }, |
227 | { "kernel", LT_HYPER, ' ' }, | ||
228 | { NULL, 0, 0 }, | ||
229 | }; | ||
230 | |||
231 | const char *grub2FindConfig(struct configFileInfo *cfi) { | ||
232 | static const char *configFiles[] = { | ||
233 | "/boot/grub/grub-efi.cfg", | ||
234 | "/boot/grub/grub.cfg", | ||
235 | NULL | ||
236 | }; | ||
237 | static int i = -1; | ||
238 | niro | 1714 | static const char *grub_cfg = "/boot/grub/grub.cfg"; |
239 | niro | 2246 | int rc = -1; |
240 | niro | 1696 | |
241 | if (i == -1) { | ||
242 | for (i = 0; configFiles[i] != NULL; i++) { | ||
243 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
244 | niro | 2246 | if ((rc = access(configFiles[i], R_OK))) { |
245 | if (errno == EACCES) { | ||
246 | printf("Unable to access bootloader configuration file " | ||
247 | "\"%s\": %m\n", configFiles[i]); | ||
248 | exit(1); | ||
249 | } | ||
250 | continue; | ||
251 | } else { | ||
252 | niro | 1696 | dbgPrintf("found\n"); |
253 | return configFiles[i]; | ||
254 | } | ||
255 | } | ||
256 | } | ||
257 | niro | 1714 | |
258 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory | ||
259 | * that isn't in grub1, and if it exists, return the config file path | ||
260 | * that they use. */ | ||
261 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { | ||
262 | dbgPrintf("found\n"); | ||
263 | return grub_cfg; | ||
264 | } | ||
265 | |||
266 | dbgPrintf("not found\n"); | ||
267 | niro | 1696 | return configFiles[i]; |
268 | } | ||
269 | |||
270 | niro | 2252 | /* kind of hacky. It'll give the first 1024 bytes, ish. */ |
271 | static char *grub2GetEnv(struct configFileInfo *info, char *name) | ||
272 | { | ||
273 | static char buf[1025]; | ||
274 | char *s = NULL; | ||
275 | char *ret = NULL; | ||
276 | char *envFile = info->envFile ? info->envFile : "/boot/grub2/grubenv"; | ||
277 | int rc = asprintf(&s, "grub2-editenv %s list | grep '^%s='", envFile, name); | ||
278 | |||
279 | if (rc < 0) | ||
280 | return NULL; | ||
281 | |||
282 | FILE *f = popen(s, "r"); | ||
283 | if (!f) | ||
284 | goto out; | ||
285 | |||
286 | memset(buf, '\0', sizeof (buf)); | ||
287 | ret = fgets(buf, 1024, f); | ||
288 | pclose(f); | ||
289 | |||
290 | if (ret) { | ||
291 | ret += strlen(name) + 1; | ||
292 | ret[strlen(ret) - 1] = '\0'; | ||
293 | } | ||
294 | dbgPrintf("grub2GetEnv(%s): %s\n", name, ret); | ||
295 | out: | ||
296 | free(s); | ||
297 | return ret; | ||
298 | } | ||
299 | |||
300 | niro | 2257 | static int sPopCount(const char *s, const char *c) |
301 | { | ||
302 | int ret = 0; | ||
303 | if (!s) | ||
304 | return -1; | ||
305 | for (int i = 0; s[i] != '\0'; i++) | ||
306 | for (int j = 0; c[j] != '\0'; j++) | ||
307 | if (s[i] == c[j]) | ||
308 | ret++; | ||
309 | return ret; | ||
310 | } | ||
311 | |||
312 | static char *shellEscape(const char *s) | ||
313 | { | ||
314 | int l = strlen(s) + sPopCount(s, "'") * 2; | ||
315 | |||
316 | char *ret = calloc(l+1, sizeof (*ret)); | ||
317 | if (!ret) | ||
318 | return NULL; | ||
319 | for (int i = 0, j = 0; s[i] != '\0'; i++, j++) { | ||
320 | if (s[i] == '\'') | ||
321 | ret[j++] = '\\'; | ||
322 | ret[j] = s[i]; | ||
323 | } | ||
324 | return ret; | ||
325 | } | ||
326 | |||
327 | static void unquote(char *s) | ||
328 | { | ||
329 | int l = strlen(s); | ||
330 | |||
331 | if ((s[l-1] == '\'' && s[0] == '\'') || (s[l-1] == '"' && s[0] == '"')) { | ||
332 | memmove(s, s+1, l-2); | ||
333 | s[l-2] = '\0'; | ||
334 | } | ||
335 | } | ||
336 | |||
337 | niro | 2252 | static int grub2SetEnv(struct configFileInfo *info, char *name, char *value) |
338 | { | ||
339 | char *s = NULL; | ||
340 | int rc = 0; | ||
341 | char *envFile = info->envFile ? info->envFile : "/boot/grub2/grubenv"; | ||
342 | |||
343 | niro | 2257 | unquote(value); |
344 | value = shellEscape(value); | ||
345 | if (!value) | ||
346 | return -1; | ||
347 | |||
348 | niro | 2252 | rc = asprintf(&s, "grub2-editenv %s set '%s=%s'", envFile, name, value); |
349 | niro | 2257 | free(value); |
350 | niro | 2252 | if (rc <0) |
351 | return -1; | ||
352 | |||
353 | dbgPrintf("grub2SetEnv(%s): %s\n", name, s); | ||
354 | rc = system(s); | ||
355 | free(s); | ||
356 | return rc; | ||
357 | } | ||
358 | |||
359 | /* this is a gigantic hack to avoid clobbering grub2 variables... */ | ||
360 | static int is_special_grub2_variable(const char *name) | ||
361 | { | ||
362 | if (!strcmp(name,"\"${next_entry}\"")) | ||
363 | return 1; | ||
364 | if (!strcmp(name,"\"${prev_saved_entry}\"")) | ||
365 | return 1; | ||
366 | return 0; | ||
367 | } | ||
368 | |||
369 | niro | 1746 | int sizeOfSingleLine(struct singleLine * line) { |
370 | int count = 0; | ||
371 | |||
372 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
373 | niro | 1746 | int indentSize = 0; |
374 | |||
375 | count = count + strlen(line->elements[i].item); | ||
376 | |||
377 | indentSize = strlen(line->elements[i].indent); | ||
378 | if (indentSize > 0) | ||
379 | count = count + indentSize; | ||
380 | else | ||
381 | /* be extra safe and add room for whitespaces */ | ||
382 | count = count + 1; | ||
383 | } | ||
384 | |||
385 | /* room for trailing terminator */ | ||
386 | count = count + 1; | ||
387 | |||
388 | return count; | ||
389 | } | ||
390 | |||
391 | niro | 1800 | static int isquote(char q) |
392 | { | ||
393 | if (q == '\'' || q == '\"') | ||
394 | return 1; | ||
395 | return 0; | ||
396 | } | ||
397 | |||
398 | niro | 1940 | static int iskernel(enum lineType_e type) { |
399 | return (type == LT_KERNEL || type == LT_KERNEL_EFI); | ||
400 | } | ||
401 | |||
402 | static int isinitrd(enum lineType_e type) { | ||
403 | return (type == LT_INITRD || type == LT_INITRD_EFI); | ||
404 | } | ||
405 | |||
406 | niro | 1746 | char *grub2ExtractTitle(struct singleLine * line) { |
407 | char * current; | ||
408 | char * current_indent; | ||
409 | int current_len; | ||
410 | int current_indent_len; | ||
411 | int i; | ||
412 | |||
413 | /* bail out if line does not start with menuentry */ | ||
414 | if (strcmp(line->elements[0].item, "menuentry")) | ||
415 | return NULL; | ||
416 | |||
417 | i = 1; | ||
418 | current = line->elements[i].item; | ||
419 | current_len = strlen(current); | ||
420 | |||
421 | /* if second word is quoted, strip the quotes and return single word */ | ||
422 | niro | 1800 | if (isquote(*current) && isquote(current[current_len - 1])) { |
423 | char *tmp; | ||
424 | |||
425 | tmp = strdup(current); | ||
426 | *(tmp + current_len - 1) = '\0'; | ||
427 | return ++tmp; | ||
428 | niro | 1746 | } |
429 | |||
430 | /* if no quotes, return second word verbatim */ | ||
431 | niro | 1800 | if (!isquote(*current)) |
432 | return current; | ||
433 | niro | 1746 | |
434 | /* second element start with a quote, so we have to find the element | ||
435 | * whose last character is also quote (assuming it's the closing one) */ | ||
436 | niro | 1800 | int resultMaxSize; |
437 | char * result; | ||
438 | |||
439 | resultMaxSize = sizeOfSingleLine(line); | ||
440 | result = malloc(resultMaxSize); | ||
441 | snprintf(result, resultMaxSize, "%s", ++current); | ||
442 | |||
443 | i++; | ||
444 | for (; i < line->numElements; ++i) { | ||
445 | niro | 1746 | current = line->elements[i].item; |
446 | current_len = strlen(current); | ||
447 | current_indent = line->elements[i].indent; | ||
448 | current_indent_len = strlen(current_indent); | ||
449 | |||
450 | strncat(result, current_indent, current_indent_len); | ||
451 | niro | 1800 | if (!isquote(current[current_len-1])) { |
452 | strncat(result, current, current_len); | ||
453 | niro | 1746 | } else { |
454 | niro | 1800 | strncat(result, current, current_len - 1); |
455 | break; | ||
456 | niro | 1746 | } |
457 | } | ||
458 | niro | 1800 | return result; |
459 | niro | 1746 | } |
460 | |||
461 | niro | 1696 | struct configFileInfo grub2ConfigType = { |
462 | .findConfig = grub2FindConfig, | ||
463 | niro | 2252 | .getEnv = grub2GetEnv, |
464 | .setEnv = grub2SetEnv, | ||
465 | niro | 1696 | .keywords = grub2Keywords, |
466 | .defaultIsIndex = 1, | ||
467 | niro | 1748 | .defaultSupportSaved = 1, |
468 | niro | 1696 | .defaultIsVariable = 1, |
469 | .entryStart = LT_MENUENTRY, | ||
470 | .entryEnd = LT_ENTRY_END, | ||
471 | .titlePosition = 1, | ||
472 | .needsBootPrefix = 1, | ||
473 | .mbHyperFirst = 1, | ||
474 | .mbInitRdIsModule = 1, | ||
475 | .mbAllowExtraInitRds = 1, | ||
476 | }; | ||
477 | |||
478 | niro | 532 | struct keywordTypes yabootKeywords[] = { |
479 | { "label", LT_TITLE, '=' }, | ||
480 | { "root", LT_ROOT, '=' }, | ||
481 | { "default", LT_DEFAULT, '=' }, | ||
482 | { "image", LT_KERNEL, '=' }, | ||
483 | { "bsd", LT_GENERIC, '=' }, | ||
484 | { "macos", LT_GENERIC, '=' }, | ||
485 | { "macosx", LT_GENERIC, '=' }, | ||
486 | { "magicboot", LT_GENERIC, '=' }, | ||
487 | { "darwin", LT_GENERIC, '=' }, | ||
488 | { "timeout", LT_GENERIC, '=' }, | ||
489 | { "install", LT_GENERIC, '=' }, | ||
490 | { "fstype", LT_GENERIC, '=' }, | ||
491 | { "hfstype", LT_GENERIC, '=' }, | ||
492 | { "delay", LT_GENERIC, '=' }, | ||
493 | { "defaultos", LT_GENERIC, '=' }, | ||
494 | { "init-message", LT_GENERIC, '=' }, | ||
495 | { "enablecdboot", LT_GENERIC, ' ' }, | ||
496 | { "enableofboot", LT_GENERIC, ' ' }, | ||
497 | { "enablenetboot", LT_GENERIC, ' ' }, | ||
498 | { "nonvram", LT_GENERIC, ' ' }, | ||
499 | { "hide", LT_GENERIC, ' ' }, | ||
500 | { "protect", LT_GENERIC, ' ' }, | ||
501 | { "nobless", LT_GENERIC, ' ' }, | ||
502 | { "nonvram", LT_GENERIC, ' ' }, | ||
503 | { "brokenosx", LT_GENERIC, ' ' }, | ||
504 | { "usemount", LT_GENERIC, ' ' }, | ||
505 | { "mntpoint", LT_GENERIC, '=' }, | ||
506 | { "partition", LT_GENERIC, '=' }, | ||
507 | { "device", LT_GENERIC, '=' }, | ||
508 | { "fstype", LT_GENERIC, '=' }, | ||
509 | niro | 914 | { "initrd", LT_INITRD, '=', ';' }, |
510 | niro | 532 | { "append", LT_KERNELARGS, '=' }, |
511 | { "boot", LT_BOOT, '=' }, | ||
512 | { "lba", LT_LBA, ' ' }, | ||
513 | { NULL, 0, 0 }, | ||
514 | }; | ||
515 | |||
516 | struct keywordTypes liloKeywords[] = { | ||
517 | { "label", LT_TITLE, '=' }, | ||
518 | { "root", LT_ROOT, '=' }, | ||
519 | { "default", LT_DEFAULT, '=' }, | ||
520 | { "image", LT_KERNEL, '=' }, | ||
521 | { "other", LT_OTHER, '=' }, | ||
522 | { "initrd", LT_INITRD, '=' }, | ||
523 | { "append", LT_KERNELARGS, '=' }, | ||
524 | { "boot", LT_BOOT, '=' }, | ||
525 | { "lba", LT_LBA, ' ' }, | ||
526 | { NULL, 0, 0 }, | ||
527 | }; | ||
528 | |||
529 | niro | 914 | struct keywordTypes eliloKeywords[] = { |
530 | { "label", LT_TITLE, '=' }, | ||
531 | { "root", LT_ROOT, '=' }, | ||
532 | { "default", LT_DEFAULT, '=' }, | ||
533 | { "image", LT_KERNEL, '=' }, | ||
534 | { "initrd", LT_INITRD, '=' }, | ||
535 | { "append", LT_KERNELARGS, '=' }, | ||
536 | { "vmm", LT_HYPER, '=' }, | ||
537 | { NULL, 0, 0 }, | ||
538 | }; | ||
539 | |||
540 | niro | 532 | struct keywordTypes siloKeywords[] = { |
541 | { "label", LT_TITLE, '=' }, | ||
542 | { "root", LT_ROOT, '=' }, | ||
543 | { "default", LT_DEFAULT, '=' }, | ||
544 | { "image", LT_KERNEL, '=' }, | ||
545 | { "other", LT_OTHER, '=' }, | ||
546 | { "initrd", LT_INITRD, '=' }, | ||
547 | { "append", LT_KERNELARGS, '=' }, | ||
548 | { "boot", LT_BOOT, '=' }, | ||
549 | { NULL, 0, 0 }, | ||
550 | }; | ||
551 | |||
552 | struct keywordTypes ziplKeywords[] = { | ||
553 | { "target", LT_BOOTROOT, '=' }, | ||
554 | { "image", LT_KERNEL, '=' }, | ||
555 | { "ramdisk", LT_INITRD, '=' }, | ||
556 | { "parameters", LT_KERNELARGS, '=' }, | ||
557 | { "default", LT_DEFAULT, '=' }, | ||
558 | { NULL, 0, 0 }, | ||
559 | }; | ||
560 | |||
561 | niro | 914 | struct keywordTypes extlinuxKeywords[] = { |
562 | { "label", LT_TITLE, ' ' }, | ||
563 | { "root", LT_ROOT, ' ' }, | ||
564 | { "default", LT_DEFAULT, ' ' }, | ||
565 | { "kernel", LT_KERNEL, ' ' }, | ||
566 | { "initrd", LT_INITRD, ' ', ',' }, | ||
567 | { "append", LT_KERNELARGS, ' ' }, | ||
568 | { "prompt", LT_UNKNOWN, ' ' }, | ||
569 | { NULL, 0, 0 }, | ||
570 | }; | ||
571 | int useextlinuxmenu; | ||
572 | niro | 532 | struct configFileInfo eliloConfigType = { |
573 | niro | 1692 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
574 | .keywords = eliloKeywords, | ||
575 | niro | 1693 | .entryStart = LT_KERNEL, |
576 | niro | 1692 | .needsBootPrefix = 1, |
577 | .argsInQuotes = 1, | ||
578 | .mbConcatArgs = 1, | ||
579 | niro | 532 | }; |
580 | |||
581 | struct configFileInfo liloConfigType = { | ||
582 | niro | 1692 | .defaultConfig = "/etc/lilo.conf", |
583 | .keywords = liloKeywords, | ||
584 | niro | 1693 | .entryStart = LT_KERNEL, |
585 | niro | 1692 | .argsInQuotes = 1, |
586 | .maxTitleLength = 15, | ||
587 | niro | 532 | }; |
588 | |||
589 | struct configFileInfo yabootConfigType = { | ||
590 | niro | 1692 | .defaultConfig = "/etc/yaboot.conf", |
591 | .keywords = yabootKeywords, | ||
592 | niro | 1693 | .entryStart = LT_KERNEL, |
593 | niro | 1692 | .needsBootPrefix = 1, |
594 | .argsInQuotes = 1, | ||
595 | .maxTitleLength = 15, | ||
596 | .mbAllowExtraInitRds = 1, | ||
597 | niro | 532 | }; |
598 | |||
599 | struct configFileInfo siloConfigType = { | ||
600 | niro | 1692 | .defaultConfig = "/etc/silo.conf", |
601 | .keywords = siloKeywords, | ||
602 | niro | 1693 | .entryStart = LT_KERNEL, |
603 | niro | 1692 | .needsBootPrefix = 1, |
604 | .argsInQuotes = 1, | ||
605 | .maxTitleLength = 15, | ||
606 | niro | 532 | }; |
607 | |||
608 | struct configFileInfo ziplConfigType = { | ||
609 | niro | 1692 | .defaultConfig = "/etc/zipl.conf", |
610 | .keywords = ziplKeywords, | ||
611 | niro | 1693 | .entryStart = LT_TITLE, |
612 | niro | 1692 | .argsInQuotes = 1, |
613 | .titleBracketed = 1, | ||
614 | niro | 532 | }; |
615 | |||
616 | niro | 914 | struct configFileInfo extlinuxConfigType = { |
617 | niro | 1692 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
618 | .keywords = extlinuxKeywords, | ||
619 | niro | 2056 | .caseInsensitive = 1, |
620 | niro | 1693 | .entryStart = LT_TITLE, |
621 | niro | 1692 | .needsBootPrefix = 1, |
622 | .maxTitleLength = 255, | ||
623 | .mbAllowExtraInitRds = 1, | ||
624 | niro | 914 | }; |
625 | |||
626 | niro | 532 | struct grubConfig { |
627 | struct singleLine * theLines; | ||
628 | struct singleEntry * entries; | ||
629 | char * primaryIndent; | ||
630 | char * secondaryIndent; | ||
631 | int defaultImage; /* -1 if none specified -- this value is | ||
632 | * written out, overriding original */ | ||
633 | int fallbackImage; /* just like defaultImage */ | ||
634 | int flags; | ||
635 | struct configFileInfo * cfi; | ||
636 | }; | ||
637 | |||
638 | niro | 1156 | blkid_cache blkid; |
639 | |||
640 | niro | 532 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index); |
641 | struct singleEntry * findEntryByPath(struct grubConfig * cfg, | ||
642 | const char * path, const char * prefix, | ||
643 | int * index); | ||
644 | niro | 2252 | struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title, |
645 | int * index); | ||
646 | niro | 532 | static int readFile(int fd, char ** bufPtr); |
647 | static void lineInit(struct singleLine * line); | ||
648 | niro | 914 | struct singleLine * lineDup(struct singleLine * line); |
649 | niro | 532 | static void lineFree(struct singleLine * line); |
650 | static int lineWrite(FILE * out, struct singleLine * line, | ||
651 | struct configFileInfo * cfi); | ||
652 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
653 | struct configFileInfo * cfi); | ||
654 | static char * getRootSpecifier(char * str); | ||
655 | niro | 1696 | static void requote(struct singleLine *line, struct configFileInfo * cfi); |
656 | niro | 914 | static void insertElement(struct singleLine * line, |
657 | const char * item, int insertHere, | ||
658 | struct configFileInfo * cfi); | ||
659 | static void removeElement(struct singleLine * line, int removeHere); | ||
660 | static struct keywordTypes * getKeywordByType(enum lineType_e type, | ||
661 | struct configFileInfo * cfi); | ||
662 | static enum lineType_e getTypeByKeyword(char * keyword, | ||
663 | struct configFileInfo * cfi); | ||
664 | static struct singleLine * getLineByType(enum lineType_e type, | ||
665 | struct singleLine * line); | ||
666 | static int checkForExtLinux(struct grubConfig * config); | ||
667 | struct singleLine * addLineTmpl(struct singleEntry * entry, | ||
668 | struct singleLine * tmplLine, | ||
669 | struct singleLine * prevLine, | ||
670 | const char * val, | ||
671 | struct configFileInfo * cfi); | ||
672 | struct singleLine * addLine(struct singleEntry * entry, | ||
673 | struct configFileInfo * cfi, | ||
674 | enum lineType_e type, char * defaultIndent, | ||
675 | const char * val); | ||
676 | niro | 532 | |
677 | static char * sdupprintf(const char *format, ...) | ||
678 | #ifdef __GNUC__ | ||
679 | __attribute__ ((format (printf, 1, 2))); | ||
680 | #else | ||
681 | ; | ||
682 | #endif | ||
683 | |||
684 | static char * sdupprintf(const char *format, ...) { | ||
685 | char *buf = NULL; | ||
686 | char c; | ||
687 | va_list args; | ||
688 | size_t size = 0; | ||
689 | va_start(args, format); | ||
690 | |||
691 | /* XXX requires C99 vsnprintf behavior */ | ||
692 | size = vsnprintf(&c, 1, format, args) + 1; | ||
693 | if (size == -1) { | ||
694 | printf("ERROR: vsnprintf behavior is not C99\n"); | ||
695 | abort(); | ||
696 | } | ||
697 | |||
698 | va_end(args); | ||
699 | va_start(args, format); | ||
700 | |||
701 | buf = malloc(size); | ||
702 | if (buf == NULL) | ||
703 | return NULL; | ||
704 | vsnprintf(buf, size, format, args); | ||
705 | va_end (args); | ||
706 | |||
707 | return buf; | ||
708 | } | ||
709 | |||
710 | niro | 1940 | static enum lineType_e preferredLineType(enum lineType_e type, |
711 | struct configFileInfo *cfi) { | ||
712 | if (isEfi && cfi == &grub2ConfigType) { | ||
713 | switch (type) { | ||
714 | case LT_KERNEL: | ||
715 | return LT_KERNEL_EFI; | ||
716 | case LT_INITRD: | ||
717 | return LT_INITRD_EFI; | ||
718 | default: | ||
719 | return type; | ||
720 | } | ||
721 | } | ||
722 | return type; | ||
723 | } | ||
724 | |||
725 | niro | 914 | static struct keywordTypes * getKeywordByType(enum lineType_e type, |
726 | struct configFileInfo * cfi) { | ||
727 | niro | 1846 | for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) { |
728 | niro | 914 | if (kw->type == type) |
729 | return kw; | ||
730 | } | ||
731 | return NULL; | ||
732 | } | ||
733 | |||
734 | niro | 1696 | static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) { |
735 | struct keywordTypes *kt = getKeywordByType(type, cfi); | ||
736 | if (kt) | ||
737 | return kt->key; | ||
738 | return "unknown"; | ||
739 | } | ||
740 | |||
741 | niro | 914 | static char * getpathbyspec(char *device) { |
742 | if (!blkid) | ||
743 | blkid_get_cache(&blkid, NULL); | ||
744 | |||
745 | return blkid_get_devname(blkid, device, NULL); | ||
746 | } | ||
747 | |||
748 | niro | 1156 | static char * getuuidbydev(char *device) { |
749 | if (!blkid) | ||
750 | blkid_get_cache(&blkid, NULL); | ||
751 | |||
752 | return blkid_get_tag_value(blkid, "UUID", device); | ||
753 | } | ||
754 | |||
755 | niro | 914 | static enum lineType_e getTypeByKeyword(char * keyword, |
756 | struct configFileInfo * cfi) { | ||
757 | niro | 1846 | for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) { |
758 | niro | 2056 | if (cfi->caseInsensitive) { |
759 | if (!strcasecmp(keyword, kw->key)) | ||
760 | return kw->type; | ||
761 | } else { | ||
762 | if (!strcmp(keyword, kw->key)) | ||
763 | return kw->type; | ||
764 | } | ||
765 | niro | 914 | } |
766 | return LT_UNKNOWN; | ||
767 | } | ||
768 | |||
769 | static struct singleLine * getLineByType(enum lineType_e type, | ||
770 | struct singleLine * line) { | ||
771 | dbgPrintf("getLineByType(%d): ", type); | ||
772 | for (; line; line = line->next) { | ||
773 | dbgPrintf("%d:%s ", line->type, | ||
774 | line->numElements ? line->elements[0].item : "(empty)"); | ||
775 | if (line->type & type) break; | ||
776 | } | ||
777 | dbgPrintf(line ? "\n" : " (failed)\n"); | ||
778 | return line; | ||
779 | } | ||
780 | |||
781 | niro | 532 | static int isBracketedTitle(struct singleLine * line) { |
782 | niro | 914 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
783 | niro | 532 | int len = strlen(line->elements[0].item); |
784 | if (*(line->elements[0].item + len - 1) == ']') { | ||
785 | /* FIXME: this is a hack... */ | ||
786 | if (strcmp(line->elements[0].item, "[defaultboot]")) { | ||
787 | return 1; | ||
788 | } | ||
789 | } | ||
790 | } | ||
791 | return 0; | ||
792 | } | ||
793 | |||
794 | niro | 1693 | static int isEntryStart(struct singleLine * line, |
795 | niro | 532 | struct configFileInfo * cfi) { |
796 | niro | 1693 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
797 | niro | 914 | (cfi->titleBracketed && isBracketedTitle(line)); |
798 | niro | 532 | } |
799 | |||
800 | /* extract the title from within brackets (for zipl) */ | ||
801 | static char * extractTitle(struct singleLine * line) { | ||
802 | /* bracketed title... let's extract it (leaks a byte) */ | ||
803 | niro | 2252 | char * title = NULL; |
804 | if (line->type == LT_TITLE) { | ||
805 | title = strdup(line->elements[0].item); | ||
806 | title++; | ||
807 | *(title + strlen(title) - 1) = '\0'; | ||
808 | } else if (line->type == LT_MENUENTRY) | ||
809 | title = strdup(line->elements[1].item); | ||
810 | else | ||
811 | return NULL; | ||
812 | niro | 532 | return title; |
813 | } | ||
814 | |||
815 | static int readFile(int fd, char ** bufPtr) { | ||
816 | int alloced = 0, size = 0, i = 0; | ||
817 | char * buf = NULL; | ||
818 | |||
819 | do { | ||
820 | size += i; | ||
821 | if ((size + 1024) > alloced) { | ||
822 | alloced += 4096; | ||
823 | buf = realloc(buf, alloced + 1); | ||
824 | } | ||
825 | } while ((i = read(fd, buf + size, 1024)) > 0); | ||
826 | |||
827 | if (i < 0) { | ||
828 | fprintf(stderr, _("error reading input: %s\n"), strerror(errno)); | ||
829 | free(buf); | ||
830 | return 1; | ||
831 | } | ||
832 | |||
833 | buf = realloc(buf, size + 2); | ||
834 | if (size == 0) | ||
835 | buf[size++] = '\n'; | ||
836 | else | ||
837 | if (buf[size - 1] != '\n') | ||
838 | buf[size++] = '\n'; | ||
839 | buf[size] = '\0'; | ||
840 | |||
841 | *bufPtr = buf; | ||
842 | |||
843 | return 0; | ||
844 | } | ||
845 | |||
846 | static void lineInit(struct singleLine * line) { | ||
847 | line->indent = NULL; | ||
848 | line->elements = NULL; | ||
849 | line->numElements = 0; | ||
850 | line->next = NULL; | ||
851 | } | ||
852 | |||
853 | niro | 914 | struct singleLine * lineDup(struct singleLine * line) { |
854 | struct singleLine * newLine = malloc(sizeof(*newLine)); | ||
855 | |||
856 | newLine->indent = strdup(line->indent); | ||
857 | newLine->next = NULL; | ||
858 | newLine->type = line->type; | ||
859 | newLine->numElements = line->numElements; | ||
860 | newLine->elements = malloc(sizeof(*newLine->elements) * | ||
861 | newLine->numElements); | ||
862 | |||
863 | niro | 1846 | for (int i = 0; i < newLine->numElements; i++) { |
864 | niro | 914 | newLine->elements[i].indent = strdup(line->elements[i].indent); |
865 | newLine->elements[i].item = strdup(line->elements[i].item); | ||
866 | } | ||
867 | |||
868 | return newLine; | ||
869 | } | ||
870 | |||
871 | niro | 532 | static void lineFree(struct singleLine * line) { |
872 | if (line->indent) free(line->indent); | ||
873 | |||
874 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
875 | niro | 532 | free(line->elements[i].item); |
876 | free(line->elements[i].indent); | ||
877 | } | ||
878 | |||
879 | if (line->elements) free(line->elements); | ||
880 | lineInit(line); | ||
881 | } | ||
882 | |||
883 | static int lineWrite(FILE * out, struct singleLine * line, | ||
884 | struct configFileInfo * cfi) { | ||
885 | if (fprintf(out, "%s", line->indent) == -1) return -1; | ||
886 | |||
887 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
888 | niro | 1801 | /* Need to handle this, because we strip the quotes from |
889 | * menuentry when read it. */ | ||
890 | if (line->type == LT_MENUENTRY && i == 1) { | ||
891 | if(!isquote(*line->elements[i].item)) | ||
892 | fprintf(out, "\'%s\'", line->elements[i].item); | ||
893 | else | ||
894 | fprintf(out, "%s", line->elements[i].item); | ||
895 | fprintf(out, "%s", line->elements[i].indent); | ||
896 | |||
897 | continue; | ||
898 | } | ||
899 | |||
900 | niro | 532 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) |
901 | if (fputc('"', out) == EOF) return -1; | ||
902 | |||
903 | if (fprintf(out, "%s", line->elements[i].item) == -1) return -1; | ||
904 | niro | 914 | if (i < line->numElements - 1) |
905 | if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1; | ||
906 | niro | 532 | } |
907 | |||
908 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) | ||
909 | if (fputc('"', out) == EOF) return -1; | ||
910 | |||
911 | if (fprintf(out, "\n") == -1) return -1; | ||
912 | |||
913 | return 0; | ||
914 | } | ||
915 | |||
916 | /* we've guaranteed that the buffer ends w/ \n\0 */ | ||
917 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
918 | struct configFileInfo * cfi) { | ||
919 | char * end; | ||
920 | char * start = *bufPtr; | ||
921 | char * chptr; | ||
922 | int elementsAlloced = 0; | ||
923 | struct lineElement * element; | ||
924 | int first = 1; | ||
925 | |||
926 | lineFree(line); | ||
927 | |||
928 | end = strchr(start, '\n'); | ||
929 | *end = '\0'; | ||
930 | *bufPtr = end + 1; | ||
931 | |||
932 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; | ||
933 | |||
934 | line->indent = strndup(start, chptr - start); | ||
935 | start = chptr; | ||
936 | |||
937 | while (start < end) { | ||
938 | /* we know !isspace(*start) */ | ||
939 | |||
940 | if (elementsAlloced == line->numElements) { | ||
941 | elementsAlloced += 5; | ||
942 | line->elements = realloc(line->elements, | ||
943 | sizeof(*line->elements) * elementsAlloced); | ||
944 | } | ||
945 | |||
946 | element = line->elements + line->numElements; | ||
947 | |||
948 | chptr = start; | ||
949 | while (*chptr && !isspace(*chptr)) { | ||
950 | if (first && *chptr == '=') break; | ||
951 | chptr++; | ||
952 | } | ||
953 | element->item = strndup(start, chptr - start); | ||
954 | start = chptr; | ||
955 | |||
956 | /* lilo actually accepts the pathological case of append = " foo " */ | ||
957 | if (*start == '=') | ||
958 | chptr = start + 1; | ||
959 | else | ||
960 | chptr = start; | ||
961 | |||
962 | do { | ||
963 | for (; *chptr && isspace(*chptr); chptr++); | ||
964 | if (*chptr == '=') | ||
965 | chptr = chptr + 1; | ||
966 | } while (isspace(*chptr)); | ||
967 | |||
968 | element->indent = strndup(start, chptr - start); | ||
969 | start = chptr; | ||
970 | |||
971 | line->numElements++; | ||
972 | first = 0; | ||
973 | } | ||
974 | |||
975 | if (!line->numElements) | ||
976 | line->type = LT_WHITESPACE; | ||
977 | else { | ||
978 | niro | 914 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
979 | if (line->type == LT_UNKNOWN) { | ||
980 | niro | 532 | /* zipl does [title] instead of something reasonable like all |
981 | * the other boot loaders. kind of ugly */ | ||
982 | if (cfi->titleBracketed && isBracketedTitle(line)) { | ||
983 | line->type = LT_TITLE; | ||
984 | } | ||
985 | |||
986 | /* this is awkward, but we need to be able to handle keywords | ||
987 | that begin with a # (specifically for #boot in grub.conf), | ||
988 | but still make comments lines with no elements (everything | ||
989 | stored in the indent */ | ||
990 | if (*line->elements[0].item == '#') { | ||
991 | char * fullLine; | ||
992 | int len; | ||
993 | |||
994 | len = strlen(line->indent); | ||
995 | niro | 1846 | for (int i = 0; i < line->numElements; i++) |
996 | niro | 532 | len += strlen(line->elements[i].item) + |
997 | strlen(line->elements[i].indent); | ||
998 | |||
999 | fullLine = malloc(len + 1); | ||
1000 | strcpy(fullLine, line->indent); | ||
1001 | free(line->indent); | ||
1002 | line->indent = fullLine; | ||
1003 | |||
1004 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
1005 | niro | 532 | strcat(fullLine, line->elements[i].item); |
1006 | strcat(fullLine, line->elements[i].indent); | ||
1007 | free(line->elements[i].item); | ||
1008 | free(line->elements[i].indent); | ||
1009 | } | ||
1010 | |||
1011 | line->type = LT_WHITESPACE; | ||
1012 | line->numElements = 0; | ||
1013 | } | ||
1014 | niro | 914 | } else { |
1015 | struct keywordTypes *kw; | ||
1016 | |||
1017 | kw = getKeywordByType(line->type, cfi); | ||
1018 | |||
1019 | /* space isn't the only separator, we need to split | ||
1020 | * elements up more | ||
1021 | */ | ||
1022 | if (!isspace(kw->separatorChar)) { | ||
1023 | char indent[2] = ""; | ||
1024 | indent[0] = kw->separatorChar; | ||
1025 | niro | 1846 | for (int i = 1; i < line->numElements; i++) { |
1026 | niro | 914 | char *p; |
1027 | int numNewElements; | ||
1028 | |||
1029 | numNewElements = 0; | ||
1030 | p = line->elements[i].item; | ||
1031 | while (*p != '\0') { | ||
1032 | if (*p == kw->separatorChar) | ||
1033 | numNewElements++; | ||
1034 | p++; | ||
1035 | } | ||
1036 | if (line->numElements + numNewElements >= elementsAlloced) { | ||
1037 | elementsAlloced += numNewElements + 5; | ||
1038 | line->elements = realloc(line->elements, | ||
1039 | sizeof(*line->elements) * elementsAlloced); | ||
1040 | } | ||
1041 | |||
1042 | niro | 1846 | for (int j = line->numElements; j > i; j--) { |
1043 | niro | 914 | line->elements[j + numNewElements] = line->elements[j]; |
1044 | } | ||
1045 | line->numElements += numNewElements; | ||
1046 | |||
1047 | p = line->elements[i].item; | ||
1048 | while (*p != '\0') { | ||
1049 | |||
1050 | while (*p != kw->separatorChar && *p != '\0') p++; | ||
1051 | if (*p == '\0') { | ||
1052 | break; | ||
1053 | } | ||
1054 | |||
1055 | niro | 1840 | line->elements[i + 1].indent = line->elements[i].indent; |
1056 | niro | 914 | line->elements[i].indent = strdup(indent); |
1057 | *p++ = '\0'; | ||
1058 | i++; | ||
1059 | line->elements[i].item = strdup(p); | ||
1060 | } | ||
1061 | } | ||
1062 | } | ||
1063 | niro | 532 | } |
1064 | } | ||
1065 | |||
1066 | return 0; | ||
1067 | } | ||
1068 | |||
1069 | static struct grubConfig * readConfig(const char * inName, | ||
1070 | struct configFileInfo * cfi) { | ||
1071 | int in; | ||
1072 | char * incoming = NULL, * head; | ||
1073 | int rc; | ||
1074 | int sawEntry = 0; | ||
1075 | int movedLine = 0; | ||
1076 | struct grubConfig * cfg; | ||
1077 | struct singleLine * last = NULL, * line, * defaultLine = NULL; | ||
1078 | char * end; | ||
1079 | struct singleEntry * entry = NULL; | ||
1080 | niro | 1846 | int len; |
1081 | niro | 532 | char * buf; |
1082 | |||
1083 | niro | 2246 | if (inName == NULL) { |
1084 | printf("Could not find bootloader configuration\n"); | ||
1085 | exit(1); | ||
1086 | } else if (!strcmp(inName, "-")) { | ||
1087 | niro | 532 | in = 0; |
1088 | } else { | ||
1089 | if ((in = open(inName, O_RDONLY)) < 0) { | ||
1090 | fprintf(stderr, _("error opening %s for read: %s\n"), | ||
1091 | inName, strerror(errno)); | ||
1092 | return NULL; | ||
1093 | } | ||
1094 | } | ||
1095 | |||
1096 | rc = readFile(in, &incoming); | ||
1097 | close(in); | ||
1098 | if (rc) return NULL; | ||
1099 | |||
1100 | head = incoming; | ||
1101 | cfg = malloc(sizeof(*cfg)); | ||
1102 | cfg->primaryIndent = strdup(""); | ||
1103 | cfg->secondaryIndent = strdup("\t"); | ||
1104 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; | ||
1105 | cfg->cfi = cfi; | ||
1106 | cfg->theLines = NULL; | ||
1107 | cfg->entries = NULL; | ||
1108 | cfg->fallbackImage = 0; | ||
1109 | |||
1110 | /* copy everything we have */ | ||
1111 | while (*head) { | ||
1112 | line = malloc(sizeof(*line)); | ||
1113 | lineInit(line); | ||
1114 | |||
1115 | if (getNextLine(&head, line, cfi)) { | ||
1116 | free(line); | ||
1117 | /* XXX memory leak of everything in cfg */ | ||
1118 | return NULL; | ||
1119 | } | ||
1120 | |||
1121 | if (!sawEntry && line->numElements) { | ||
1122 | free(cfg->primaryIndent); | ||
1123 | cfg->primaryIndent = strdup(line->indent); | ||
1124 | } else if (line->numElements) { | ||
1125 | free(cfg->secondaryIndent); | ||
1126 | cfg->secondaryIndent = strdup(line->indent); | ||
1127 | } | ||
1128 | |||
1129 | niro | 1727 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
1130 | niro | 532 | sawEntry = 1; |
1131 | if (!entry) { | ||
1132 | cfg->entries = malloc(sizeof(*entry)); | ||
1133 | entry = cfg->entries; | ||
1134 | } else { | ||
1135 | entry->next = malloc(sizeof(*entry)); | ||
1136 | entry = entry->next; | ||
1137 | } | ||
1138 | |||
1139 | entry->skip = 0; | ||
1140 | entry->multiboot = 0; | ||
1141 | entry->lines = NULL; | ||
1142 | entry->next = NULL; | ||
1143 | } | ||
1144 | |||
1145 | niro | 1696 | if (line->type == LT_SET_VARIABLE) { |
1146 | dbgPrintf("found 'set' command (%d elements): ", line->numElements); | ||
1147 | dbgPrintf("%s", line->indent); | ||
1148 | niro | 1846 | for (int i = 0; i < line->numElements; i++) |
1149 | niro | 1840 | dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent); |
1150 | niro | 1696 | dbgPrintf("\n"); |
1151 | struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi); | ||
1152 | if (kwType && line->numElements == 3 && | ||
1153 | niro | 2252 | !strcmp(line->elements[1].item, kwType->key) && |
1154 | !is_special_grub2_variable(line->elements[2].item)) { | ||
1155 | niro | 1696 | dbgPrintf("Line sets default config\n"); |
1156 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; | ||
1157 | defaultLine = line; | ||
1158 | } | ||
1159 | } else if (line->type == LT_DEFAULT && line->numElements == 2) { | ||
1160 | niro | 532 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; |
1161 | defaultLine = line; | ||
1162 | niro | 914 | |
1163 | niro | 1940 | } else if (iskernel(line->type)) { |
1164 | niro | 914 | /* if by some freak chance this is multiboot and the "module" |
1165 | * lines came earlier in the template, make sure to use LT_HYPER | ||
1166 | * instead of LT_KERNEL now | ||
1167 | */ | ||
1168 | if (entry->multiboot) | ||
1169 | line->type = LT_HYPER; | ||
1170 | |||
1171 | niro | 532 | } else if (line->type == LT_MBMODULE) { |
1172 | niro | 914 | /* go back and fix the LT_KERNEL line to indicate LT_HYPER |
1173 | * instead, now that we know this is a multiboot entry. | ||
1174 | * This only applies to grub, but that's the only place we | ||
1175 | * should find LT_MBMODULE lines anyway. | ||
1176 | */ | ||
1177 | niro | 1846 | for (struct singleLine *l = entry->lines; l; l = l->next) { |
1178 | niro | 914 | if (l->type == LT_HYPER) |
1179 | break; | ||
1180 | niro | 1940 | else if (iskernel(l->type)) { |
1181 | niro | 914 | l->type = LT_HYPER; |
1182 | break; | ||
1183 | } | ||
1184 | } | ||
1185 | niro | 532 | entry->multiboot = 1; |
1186 | niro | 914 | |
1187 | } else if (line->type == LT_HYPER) { | ||
1188 | entry->multiboot = 1; | ||
1189 | |||
1190 | niro | 532 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1191 | cfg->fallbackImage = strtol(line->elements[1].item, &end, 10); | ||
1192 | if (*end) cfg->fallbackImage = -1; | ||
1193 | niro | 914 | |
1194 | niro | 532 | } else if (line->type == LT_TITLE && line->numElements > 1) { |
1195 | /* make the title a single argument (undoing our parsing) */ | ||
1196 | len = 0; | ||
1197 | niro | 1846 | for (int i = 1; i < line->numElements; i++) { |
1198 | niro | 532 | len += strlen(line->elements[i].item); |
1199 | len += strlen(line->elements[i].indent); | ||
1200 | } | ||
1201 | buf = malloc(len + 1); | ||
1202 | *buf = '\0'; | ||
1203 | |||
1204 | niro | 1846 | for (int i = 1; i < line->numElements; i++) { |
1205 | niro | 532 | strcat(buf, line->elements[i].item); |
1206 | free(line->elements[i].item); | ||
1207 | |||
1208 | if ((i + 1) != line->numElements) { | ||
1209 | strcat(buf, line->elements[i].indent); | ||
1210 | free(line->elements[i].indent); | ||
1211 | } | ||
1212 | } | ||
1213 | |||
1214 | line->elements[1].indent = | ||
1215 | line->elements[line->numElements - 1].indent; | ||
1216 | line->elements[1].item = buf; | ||
1217 | line->numElements = 2; | ||
1218 | niro | 1801 | } else if (line->type == LT_MENUENTRY && line->numElements > 3) { |
1219 | /* let --remove-kernel="TITLE=what" work */ | ||
1220 | len = 0; | ||
1221 | char *extras; | ||
1222 | char *title; | ||
1223 | niro | 914 | |
1224 | niro | 1846 | for (int i = 1; i < line->numElements; i++) { |
1225 | niro | 1801 | len += strlen(line->elements[i].item); |
1226 | len += strlen(line->elements[i].indent); | ||
1227 | } | ||
1228 | buf = malloc(len + 1); | ||
1229 | *buf = '\0'; | ||
1230 | |||
1231 | /* allocate mem for extra flags. */ | ||
1232 | extras = malloc(len + 1); | ||
1233 | *extras = '\0'; | ||
1234 | |||
1235 | /* get title. */ | ||
1236 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
1237 | niro | 1801 | if (!strcmp(line->elements[i].item, "menuentry")) |
1238 | continue; | ||
1239 | if (isquote(*line->elements[i].item)) | ||
1240 | title = line->elements[i].item + 1; | ||
1241 | else | ||
1242 | title = line->elements[i].item; | ||
1243 | |||
1244 | len = strlen(title); | ||
1245 | if (isquote(title[len-1])) { | ||
1246 | strncat(buf, title,len-1); | ||
1247 | break; | ||
1248 | } else { | ||
1249 | strcat(buf, title); | ||
1250 | strcat(buf, line->elements[i].indent); | ||
1251 | } | ||
1252 | } | ||
1253 | |||
1254 | /* get extras */ | ||
1255 | int count = 0; | ||
1256 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
1257 | niro | 1837 | if (count >= 2) { |
1258 | niro | 1801 | strcat(extras, line->elements[i].item); |
1259 | strcat(extras, line->elements[i].indent); | ||
1260 | } | ||
1261 | |||
1262 | if (!strcmp(line->elements[i].item, "menuentry")) | ||
1263 | continue; | ||
1264 | |||
1265 | /* count ' or ", there should be two in menuentry line. */ | ||
1266 | if (isquote(*line->elements[i].item)) | ||
1267 | count++; | ||
1268 | |||
1269 | len = strlen(line->elements[i].item); | ||
1270 | |||
1271 | if (isquote(line->elements[i].item[len -1])) | ||
1272 | count++; | ||
1273 | |||
1274 | /* ok, we get the final ' or ", others are extras. */ | ||
1275 | } | ||
1276 | line->elements[1].indent = | ||
1277 | line->elements[line->numElements - 2].indent; | ||
1278 | line->elements[1].item = buf; | ||
1279 | line->elements[2].indent = | ||
1280 | line->elements[line->numElements - 2].indent; | ||
1281 | line->elements[2].item = extras; | ||
1282 | line->numElements = 3; | ||
1283 | niro | 532 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
1284 | /* Strip off any " which may be present; they'll be put back | ||
1285 | on write. This is one of the few (the only?) places that grubby | ||
1286 | canonicalizes the output */ | ||
1287 | |||
1288 | if (line->numElements >= 2) { | ||
1289 | int last, len; | ||
1290 | |||
1291 | niro | 1801 | if (isquote(*line->elements[1].item)) |
1292 | niro | 914 | memmove(line->elements[1].item, line->elements[1].item + 1, |
1293 | strlen(line->elements[1].item + 1) + 1); | ||
1294 | niro | 532 | |
1295 | last = line->numElements - 1; | ||
1296 | len = strlen(line->elements[last].item) - 1; | ||
1297 | niro | 1801 | if (isquote(line->elements[last].item[len])) |
1298 | niro | 532 | line->elements[last].item[len] = '\0'; |
1299 | } | ||
1300 | } | ||
1301 | |||
1302 | /* If we find a generic config option which should live at the | ||
1303 | top of the file, move it there. Old versions of grubby were | ||
1304 | probably responsible for putting new images in the wrong | ||
1305 | place in front of it anyway. */ | ||
1306 | if (sawEntry && line->type == LT_GENERIC) { | ||
1307 | struct singleLine **l = &cfg->theLines; | ||
1308 | struct singleLine **last_nonws = &cfg->theLines; | ||
1309 | while (*l) { | ||
1310 | if ((*l)->type != LT_WHITESPACE) | ||
1311 | last_nonws = &((*l)->next); | ||
1312 | l = &((*l)->next); | ||
1313 | } | ||
1314 | line->next = *last_nonws; | ||
1315 | *last_nonws = line; | ||
1316 | movedLine = 1; | ||
1317 | continue; /* without setting 'last' */ | ||
1318 | } | ||
1319 | niro | 914 | |
1320 | niro | 532 | /* If a second line of whitespace happens after a generic option |
1321 | which was moved, drop it. */ | ||
1322 | if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) { | ||
1323 | lineFree(line); | ||
1324 | free(line); | ||
1325 | movedLine = 0; | ||
1326 | continue; | ||
1327 | } | ||
1328 | movedLine = 0; | ||
1329 | |||
1330 | if (sawEntry) { | ||
1331 | if (!entry->lines) | ||
1332 | entry->lines = line; | ||
1333 | else | ||
1334 | last->next = line; | ||
1335 | niro | 1696 | dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry); |
1336 | |||
1337 | /* we could have seen this outside of an entry... if so, we | ||
1338 | * ignore it like any other line we don't grok */ | ||
1339 | if (line->type == LT_ENTRY_END && sawEntry) | ||
1340 | sawEntry = 0; | ||
1341 | niro | 532 | } else { |
1342 | if (!cfg->theLines) | ||
1343 | cfg->theLines = line; | ||
1344 | niro | 914 | else |
1345 | niro | 532 | last->next = line; |
1346 | niro | 1696 | dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi)); |
1347 | niro | 532 | } |
1348 | |||
1349 | last = line; | ||
1350 | } | ||
1351 | |||
1352 | free(incoming); | ||
1353 | |||
1354 | niro | 1696 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1355 | niro | 532 | if (defaultLine) { |
1356 | niro | 1748 | if (defaultLine->numElements > 2 && |
1357 | cfi->defaultSupportSaved && | ||
1358 | !strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) { | ||
1359 | niro | 2252 | cfg->cfi->defaultIsSaved = 1; |
1360 | cfg->defaultImage = DEFAULT_SAVED_GRUB2; | ||
1361 | if (cfg->cfi->getEnv) { | ||
1362 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); | ||
1363 | if (defTitle) { | ||
1364 | int index = 0; | ||
1365 | entry = findEntryByTitle(cfg, defTitle, &index); | ||
1366 | if (entry) | ||
1367 | cfg->defaultImage = index; | ||
1368 | } | ||
1369 | } | ||
1370 | niro | 1748 | } else if (cfi->defaultIsVariable) { |
1371 | niro | 1696 | char *value = defaultLine->elements[2].item; |
1372 | while (*value && (*value == '"' || *value == '\'' || | ||
1373 | *value == ' ' || *value == '\t')) | ||
1374 | value++; | ||
1375 | cfg->defaultImage = strtol(value, &end, 10); | ||
1376 | while (*end && (*end == '"' || *end == '\'' || | ||
1377 | *end == ' ' || *end == '\t')) | ||
1378 | end++; | ||
1379 | if (*end) cfg->defaultImage = -1; | ||
1380 | } else if (cfi->defaultSupportSaved && | ||
1381 | niro | 532 | !strncmp(defaultLine->elements[1].item, "saved", 5)) { |
1382 | cfg->defaultImage = DEFAULT_SAVED; | ||
1383 | } else if (cfi->defaultIsIndex) { | ||
1384 | cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10); | ||
1385 | if (*end) cfg->defaultImage = -1; | ||
1386 | } else if (defaultLine->numElements >= 2) { | ||
1387 | niro | 1846 | int i = 0; |
1388 | niro | 532 | while ((entry = findEntryByIndex(cfg, i))) { |
1389 | for (line = entry->lines; line; line = line->next) | ||
1390 | if (line->type == LT_TITLE) break; | ||
1391 | |||
1392 | if (!cfi->titleBracketed) { | ||
1393 | if (line && (line->numElements >= 2) && | ||
1394 | !strcmp(defaultLine->elements[1].item, | ||
1395 | line->elements[1].item)) break; | ||
1396 | } else if (line) { | ||
1397 | if (!strcmp(defaultLine->elements[1].item, | ||
1398 | extractTitle(line))) break; | ||
1399 | } | ||
1400 | i++; | ||
1401 | niro | 914 | entry = NULL; |
1402 | niro | 532 | } |
1403 | |||
1404 | niro | 914 | if (entry){ |
1405 | cfg->defaultImage = i; | ||
1406 | }else{ | ||
1407 | cfg->defaultImage = -1; | ||
1408 | } | ||
1409 | niro | 532 | } |
1410 | niro | 2252 | } else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) { |
1411 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); | ||
1412 | if (defTitle) { | ||
1413 | int index = 0; | ||
1414 | entry = findEntryByTitle(cfg, defTitle, &index); | ||
1415 | if (entry) | ||
1416 | cfg->defaultImage = index; | ||
1417 | } | ||
1418 | niro | 914 | } else { |
1419 | cfg->defaultImage = 0; | ||
1420 | niro | 532 | } |
1421 | |||
1422 | return cfg; | ||
1423 | } | ||
1424 | |||
1425 | static void writeDefault(FILE * out, char * indent, | ||
1426 | char * separator, struct grubConfig * cfg) { | ||
1427 | struct singleEntry * entry; | ||
1428 | struct singleLine * line; | ||
1429 | int i; | ||
1430 | |||
1431 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) return; | ||
1432 | |||
1433 | if (cfg->defaultImage == DEFAULT_SAVED) | ||
1434 | fprintf(out, "%sdefault%ssaved\n", indent, separator); | ||
1435 | niro | 2252 | else if (cfg->cfi->defaultIsSaved) { |
1436 | niro | 1748 | fprintf(out, "%sset default=\"${saved_entry}\"\n", indent); |
1437 | niro | 2252 | if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) { |
1438 | char *title; | ||
1439 | entry = findEntryByIndex(cfg, cfg->defaultImage); | ||
1440 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
1441 | if (!line) | ||
1442 | line = getLineByType(LT_TITLE, entry->lines); | ||
1443 | if (line) { | ||
1444 | title = extractTitle(line); | ||
1445 | if (title) | ||
1446 | cfg->cfi->setEnv(cfg->cfi, "saved_entry", title); | ||
1447 | } | ||
1448 | } | ||
1449 | } else if (cfg->defaultImage > -1) { | ||
1450 | niro | 532 | if (cfg->cfi->defaultIsIndex) { |
1451 | niro | 1696 | if (cfg->cfi->defaultIsVariable) { |
1452 | fprintf(out, "%sset default=\"%d\"\n", indent, | ||
1453 | cfg->defaultImage); | ||
1454 | } else { | ||
1455 | fprintf(out, "%sdefault%s%d\n", indent, separator, | ||
1456 | cfg->defaultImage); | ||
1457 | } | ||
1458 | niro | 532 | } else { |
1459 | int image = cfg->defaultImage; | ||
1460 | |||
1461 | entry = cfg->entries; | ||
1462 | while (entry && entry->skip) entry = entry->next; | ||
1463 | |||
1464 | i = 0; | ||
1465 | while (entry && i < image) { | ||
1466 | entry = entry->next; | ||
1467 | |||
1468 | while (entry && entry->skip) entry = entry->next; | ||
1469 | i++; | ||
1470 | } | ||
1471 | |||
1472 | if (!entry) return; | ||
1473 | |||
1474 | niro | 914 | line = getLineByType(LT_TITLE, entry->lines); |
1475 | niro | 532 | |
1476 | if (line && line->numElements >= 2) | ||
1477 | fprintf(out, "%sdefault%s%s\n", indent, separator, | ||
1478 | line->elements[1].item); | ||
1479 | else if (line && (line->numElements == 1) && | ||
1480 | cfg->cfi->titleBracketed) { | ||
1481 | fprintf(out, "%sdefault%s%s\n", indent, separator, | ||
1482 | extractTitle(line)); | ||
1483 | } | ||
1484 | } | ||
1485 | } | ||
1486 | } | ||
1487 | |||
1488 | static int writeConfig(struct grubConfig * cfg, char * outName, | ||
1489 | const char * prefix) { | ||
1490 | FILE * out; | ||
1491 | struct singleLine * line; | ||
1492 | struct singleEntry * entry; | ||
1493 | char * tmpOutName; | ||
1494 | int needs = MAIN_DEFAULT; | ||
1495 | struct stat sb; | ||
1496 | int i; | ||
1497 | |||
1498 | if (!strcmp(outName, "-")) { | ||
1499 | out = stdout; | ||
1500 | tmpOutName = NULL; | ||
1501 | } else { | ||
1502 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { | ||
1503 | char * buf; | ||
1504 | int len = 256; | ||
1505 | int rc; | ||
1506 | |||
1507 | /* most likely the symlink is relative, so change our | ||
1508 | niro | 914 | directory to the dir of the symlink */ |
1509 | niro | 1868 | char *dir = strdupa(outName); |
1510 | niro | 1934 | rc = chdir(dirname(dir)); |
1511 | niro | 532 | do { |
1512 | buf = alloca(len + 1); | ||
1513 | niro | 914 | rc = readlink(basename(outName), buf, len); |
1514 | niro | 532 | if (rc == len) len += 256; |
1515 | } while (rc == len); | ||
1516 | |||
1517 | if (rc < 0) { | ||
1518 | fprintf(stderr, _("grubby: error readlink link %s: %s\n"), | ||
1519 | outName, strerror(errno)); | ||
1520 | return 1; | ||
1521 | } | ||
1522 | |||
1523 | outName = buf; | ||
1524 | outName[rc] = '\0'; | ||
1525 | } | ||
1526 | |||
1527 | tmpOutName = alloca(strlen(outName) + 2); | ||
1528 | sprintf(tmpOutName, "%s-", outName); | ||
1529 | out = fopen(tmpOutName, "w"); | ||
1530 | if (!out) { | ||
1531 | fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName, | ||
1532 | strerror(errno)); | ||
1533 | return 1; | ||
1534 | } | ||
1535 | |||
1536 | if (!stat(outName, &sb)) { | ||
1537 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { | ||
1538 | fprintf(stderr, _("grubby: error setting perms on %s: %s\n"), | ||
1539 | tmpOutName, strerror(errno)); | ||
1540 | fclose(out); | ||
1541 | unlink(tmpOutName); | ||
1542 | return 1; | ||
1543 | } | ||
1544 | } | ||
1545 | } | ||
1546 | |||
1547 | line = cfg->theLines; | ||
1548 | niro | 1696 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1549 | niro | 532 | while (line) { |
1550 | niro | 1696 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1551 | line->numElements == 3 && | ||
1552 | niro | 2252 | !strcmp(line->elements[1].item, defaultKw->key) && |
1553 | !is_special_grub2_variable(line->elements[2].item)) { | ||
1554 | niro | 532 | writeDefault(out, line->indent, line->elements[0].indent, cfg); |
1555 | needs &= ~MAIN_DEFAULT; | ||
1556 | niro | 1696 | } else if (line->type == LT_DEFAULT) { |
1557 | writeDefault(out, line->indent, line->elements[0].indent, cfg); | ||
1558 | needs &= ~MAIN_DEFAULT; | ||
1559 | niro | 532 | } else if (line->type == LT_FALLBACK) { |
1560 | if (cfg->fallbackImage > -1) | ||
1561 | fprintf(out, "%s%s%s%d\n", line->indent, | ||
1562 | line->elements[0].item, line->elements[0].indent, | ||
1563 | cfg->fallbackImage); | ||
1564 | } else { | ||
1565 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1566 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1567 | tmpOutName, strerror(errno)); | ||
1568 | fclose(out); | ||
1569 | unlink(tmpOutName); | ||
1570 | return 1; | ||
1571 | } | ||
1572 | } | ||
1573 | |||
1574 | line = line->next; | ||
1575 | } | ||
1576 | |||
1577 | if (needs & MAIN_DEFAULT) { | ||
1578 | writeDefault(out, cfg->primaryIndent, "=", cfg); | ||
1579 | needs &= ~MAIN_DEFAULT; | ||
1580 | } | ||
1581 | |||
1582 | i = 0; | ||
1583 | while ((entry = findEntryByIndex(cfg, i++))) { | ||
1584 | if (entry->skip) continue; | ||
1585 | |||
1586 | line = entry->lines; | ||
1587 | while (line) { | ||
1588 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1589 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1590 | tmpOutName, strerror(errno)); | ||
1591 | fclose(out); | ||
1592 | unlink(tmpOutName); | ||
1593 | return 1; | ||
1594 | } | ||
1595 | line = line->next; | ||
1596 | } | ||
1597 | } | ||
1598 | |||
1599 | if (tmpOutName) { | ||
1600 | if (rename(tmpOutName, outName)) { | ||
1601 | fprintf(stderr, _("grubby: error moving %s to %s: %s\n"), | ||
1602 | tmpOutName, outName, strerror(errno)); | ||
1603 | unlink(outName); | ||
1604 | return 1; | ||
1605 | } | ||
1606 | } | ||
1607 | |||
1608 | return 0; | ||
1609 | } | ||
1610 | |||
1611 | static int numEntries(struct grubConfig *cfg) { | ||
1612 | int i = 0; | ||
1613 | struct singleEntry * entry; | ||
1614 | |||
1615 | entry = cfg->entries; | ||
1616 | while (entry) { | ||
1617 | if (!entry->skip) | ||
1618 | i++; | ||
1619 | entry = entry->next; | ||
1620 | } | ||
1621 | return i; | ||
1622 | } | ||
1623 | |||
1624 | niro | 1156 | static char *findDiskForRoot() |
1625 | { | ||
1626 | int fd; | ||
1627 | char buf[65536]; | ||
1628 | char *devname; | ||
1629 | char *chptr; | ||
1630 | int rc; | ||
1631 | |||
1632 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { | ||
1633 | fprintf(stderr, "grubby: failed to open %s: %s\n", | ||
1634 | _PATH_MOUNTED, strerror(errno)); | ||
1635 | return NULL; | ||
1636 | } | ||
1637 | |||
1638 | rc = read(fd, buf, sizeof(buf) - 1); | ||
1639 | if (rc <= 0) { | ||
1640 | fprintf(stderr, "grubby: failed to read %s: %s\n", | ||
1641 | _PATH_MOUNTED, strerror(errno)); | ||
1642 | close(fd); | ||
1643 | return NULL; | ||
1644 | } | ||
1645 | close(fd); | ||
1646 | buf[rc] = '\0'; | ||
1647 | chptr = buf; | ||
1648 | |||
1649 | niro | 1841 | char *foundanswer = NULL; |
1650 | |||
1651 | niro | 1156 | while (chptr && chptr != buf+rc) { |
1652 | devname = chptr; | ||
1653 | |||
1654 | /* | ||
1655 | * The first column of a mtab entry is the device, but if the entry is a | ||
1656 | * special device it won't start with /, so move on to the next line. | ||
1657 | */ | ||
1658 | if (*devname != '/') { | ||
1659 | chptr = strchr(chptr, '\n'); | ||
1660 | if (chptr) | ||
1661 | chptr++; | ||
1662 | continue; | ||
1663 | } | ||
1664 | |||
1665 | /* Seek to the next space */ | ||
1666 | chptr = strchr(chptr, ' '); | ||
1667 | if (!chptr) { | ||
1668 | fprintf(stderr, "grubby: error parsing %s: %s\n", | ||
1669 | _PATH_MOUNTED, strerror(errno)); | ||
1670 | return NULL; | ||
1671 | } | ||
1672 | |||
1673 | /* | ||
1674 | * The second column of a mtab entry is the mount point, we are looking | ||
1675 | * for '/' obviously. | ||
1676 | */ | ||
1677 | if (*(++chptr) == '/' && *(++chptr) == ' ') { | ||
1678 | niro | 1841 | /* remember the last / entry in mtab */ |
1679 | foundanswer = devname; | ||
1680 | niro | 1156 | } |
1681 | |||
1682 | /* Next line */ | ||
1683 | chptr = strchr(chptr, '\n'); | ||
1684 | if (chptr) | ||
1685 | chptr++; | ||
1686 | } | ||
1687 | |||
1688 | niro | 1841 | /* Return the last / entry found */ |
1689 | if (foundanswer) { | ||
1690 | chptr = strchr(foundanswer, ' '); | ||
1691 | *chptr = '\0'; | ||
1692 | return strdup(foundanswer); | ||
1693 | } | ||
1694 | |||
1695 | niro | 1156 | return NULL; |
1696 | } | ||
1697 | |||
1698 | niro | 2236 | void printEntry(struct singleEntry * entry, FILE *f) { |
1699 | niro | 1736 | int i; |
1700 | struct singleLine * line; | ||
1701 | |||
1702 | for (line = entry->lines; line; line = line->next) { | ||
1703 | niro | 2236 | log_message(f, "DBG: %s", line->indent); |
1704 | niro | 1736 | for (i = 0; i < line->numElements; i++) { |
1705 | niro | 1801 | /* Need to handle this, because we strip the quotes from |
1706 | * menuentry when read it. */ | ||
1707 | if (line->type == LT_MENUENTRY && i == 1) { | ||
1708 | if(!isquote(*line->elements[i].item)) | ||
1709 | niro | 2236 | log_message(f, "\'%s\'", line->elements[i].item); |
1710 | niro | 1801 | else |
1711 | niro | 2236 | log_message(f, "%s", line->elements[i].item); |
1712 | log_message(f, "%s", line->elements[i].indent); | ||
1713 | niro | 1801 | |
1714 | continue; | ||
1715 | } | ||
1716 | |||
1717 | niro | 2236 | log_message(f, "%s%s", |
1718 | niro | 1736 | line->elements[i].item, line->elements[i].indent); |
1719 | } | ||
1720 | niro | 2236 | log_message(f, "\n"); |
1721 | niro | 1736 | } |
1722 | } | ||
1723 | |||
1724 | niro | 2236 | void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...) |
1725 | niro | 1736 | { |
1726 | niro | 2236 | static int once; |
1727 | va_list argp, argq; | ||
1728 | niro | 1736 | |
1729 | niro | 2236 | va_start(argp, fmt); |
1730 | |||
1731 | va_copy(argq, argp); | ||
1732 | if (!once) { | ||
1733 | log_time(NULL); | ||
1734 | log_message(NULL, "command line: %s\n", saved_command_line); | ||
1735 | } | ||
1736 | log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed"); | ||
1737 | log_vmessage(NULL, fmt, argq); | ||
1738 | |||
1739 | printEntry(entry, NULL); | ||
1740 | va_end(argq); | ||
1741 | |||
1742 | if (!debug) { | ||
1743 | once = 1; | ||
1744 | va_end(argp); | ||
1745 | niro | 1736 | return; |
1746 | niro | 2236 | } |
1747 | niro | 1736 | |
1748 | niro | 2236 | if (okay) { |
1749 | va_end(argp); | ||
1750 | return; | ||
1751 | } | ||
1752 | |||
1753 | if (!once) | ||
1754 | log_message(stderr, "DBG: command line: %s\n", saved_command_line); | ||
1755 | once = 1; | ||
1756 | niro | 1736 | fprintf(stderr, "DBG: Image entry failed: "); |
1757 | vfprintf(stderr, fmt, argp); | ||
1758 | niro | 2236 | printEntry(entry, stderr); |
1759 | niro | 1736 | va_end(argp); |
1760 | } | ||
1761 | |||
1762 | niro | 1745 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
1763 | |||
1764 | static int endswith(const char *s, char c) | ||
1765 | { | ||
1766 | int slen; | ||
1767 | |||
1768 | niro | 1750 | if (!s || !s[0]) |
1769 | niro | 1745 | return 0; |
1770 | slen = strlen(s) - 1; | ||
1771 | |||
1772 | return s[slen] == c; | ||
1773 | } | ||
1774 | |||
1775 | niro | 532 | int suitableImage(struct singleEntry * entry, const char * bootPrefix, |
1776 | int skipRemoved, int flags) { | ||
1777 | struct singleLine * line; | ||
1778 | char * fullName; | ||
1779 | int i; | ||
1780 | char * dev; | ||
1781 | char * rootspec; | ||
1782 | niro | 1156 | char * rootdev; |
1783 | niro | 532 | |
1784 | niro | 1736 | if (skipRemoved && entry->skip) { |
1785 | niro | 2236 | notSuitablePrintf(entry, 0, "marked to skip\n"); |
1786 | niro | 1736 | return 0; |
1787 | } | ||
1788 | niro | 532 | |
1789 | niro | 1940 | line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines); |
1790 | niro | 1736 | if (!line) { |
1791 | niro | 2236 | notSuitablePrintf(entry, 0, "no line found\n"); |
1792 | niro | 1736 | return 0; |
1793 | } | ||
1794 | if (line->numElements < 2) { | ||
1795 | niro | 2236 | notSuitablePrintf(entry, 0, "line has only %d elements\n", |
1796 | niro | 1736 | line->numElements); |
1797 | return 0; | ||
1798 | } | ||
1799 | niro | 914 | |
1800 | niro | 2236 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
1801 | notSuitablePrintf(entry, 1, "\n"); | ||
1802 | return 1; | ||
1803 | } | ||
1804 | niro | 532 | |
1805 | fullName = alloca(strlen(bootPrefix) + | ||
1806 | strlen(line->elements[1].item) + 1); | ||
1807 | rootspec = getRootSpecifier(line->elements[1].item); | ||
1808 | niro | 1745 | int rootspec_offset = rootspec ? strlen(rootspec) : 0; |
1809 | int hasslash = endswith(bootPrefix, '/') || | ||
1810 | beginswith(line->elements[1].item + rootspec_offset, '/'); | ||
1811 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", | ||
1812 | line->elements[1].item + rootspec_offset); | ||
1813 | niro | 1736 | if (access(fullName, R_OK)) { |
1814 | niro | 2236 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); |
1815 | niro | 1736 | return 0; |
1816 | } | ||
1817 | niro | 532 | for (i = 2; i < line->numElements; i++) |
1818 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1819 | if (i < line->numElements) { | ||
1820 | dev = line->elements[i].item + 5; | ||
1821 | } else { | ||
1822 | /* look for a lilo style LT_ROOT line */ | ||
1823 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
1824 | niro | 532 | |
1825 | if (line && line->numElements >= 2) { | ||
1826 | dev = line->elements[1].item; | ||
1827 | } else { | ||
1828 | niro | 914 | /* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS. |
1829 | * grub+multiboot uses LT_MBMODULE for the args, so check that too. | ||
1830 | */ | ||
1831 | line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines); | ||
1832 | niro | 532 | |
1833 | /* failed to find one */ | ||
1834 | niro | 1736 | if (!line) { |
1835 | niro | 2236 | notSuitablePrintf(entry, 0, "no line found\n"); |
1836 | niro | 1736 | return 0; |
1837 | } | ||
1838 | niro | 532 | |
1839 | for (i = 1; i < line->numElements; i++) | ||
1840 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1841 | if (i < line->numElements) | ||
1842 | dev = line->elements[i].item + 5; | ||
1843 | else { | ||
1844 | niro | 2236 | notSuitablePrintf(entry, 0, "no root= entry found\n"); |
1845 | niro | 532 | /* it failed too... can't find root= */ |
1846 | return 0; | ||
1847 | } | ||
1848 | } | ||
1849 | } | ||
1850 | |||
1851 | niro | 914 | dev = getpathbyspec(dev); |
1852 | niro | 1736 | if (!getpathbyspec(dev)) { |
1853 | niro | 2236 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", dev); |
1854 | niro | 914 | return 0; |
1855 | niro | 1736 | } else |
1856 | dev = getpathbyspec(dev); | ||
1857 | niro | 532 | |
1858 | niro | 1156 | rootdev = findDiskForRoot(); |
1859 | niro | 1736 | if (!rootdev) { |
1860 | niro | 2236 | notSuitablePrintf(entry, 0, "can't find root device\n"); |
1861 | niro | 914 | return 0; |
1862 | niro | 1736 | } |
1863 | niro | 914 | |
1864 | niro | 1177 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
1865 | niro | 2236 | notSuitablePrintf(entry, 0, "uuid missing: rootdev %s, dev %s\n", |
1866 | niro | 1736 | getuuidbydev(rootdev), getuuidbydev(dev)); |
1867 | niro | 1177 | free(rootdev); |
1868 | return 0; | ||
1869 | } | ||
1870 | niro | 532 | |
1871 | niro | 1156 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
1872 | niro | 2236 | notSuitablePrintf(entry, 0, "uuid mismatch: rootdev %s, dev %s\n", |
1873 | niro | 1736 | getuuidbydev(rootdev), getuuidbydev(dev)); |
1874 | niro | 1156 | free(rootdev); |
1875 | niro | 914 | return 0; |
1876 | niro | 1156 | } |
1877 | niro | 532 | |
1878 | niro | 1156 | free(rootdev); |
1879 | niro | 2236 | notSuitablePrintf(entry, 1, "\n"); |
1880 | niro | 1156 | |
1881 | niro | 532 | return 1; |
1882 | } | ||
1883 | |||
1884 | /* returns the first match on or after the one pointed to by index (if index | ||
1885 | is not NULL) which is not marked as skip */ | ||
1886 | struct singleEntry * findEntryByPath(struct grubConfig * config, | ||
1887 | const char * kernel, const char * prefix, | ||
1888 | int * index) { | ||
1889 | struct singleEntry * entry = NULL; | ||
1890 | struct singleLine * line; | ||
1891 | int i; | ||
1892 | char * chptr; | ||
1893 | char * rootspec = NULL; | ||
1894 | enum lineType_e checkType = LT_KERNEL; | ||
1895 | |||
1896 | if (isdigit(*kernel)) { | ||
1897 | int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); | ||
1898 | |||
1899 | i = 0; | ||
1900 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1901 | while (*chptr == ',') { | ||
1902 | i++; | ||
1903 | kernel = chptr + 1; | ||
1904 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1905 | } | ||
1906 | |||
1907 | if (*chptr) { | ||
1908 | /* can't parse it, bail */ | ||
1909 | return NULL; | ||
1910 | } | ||
1911 | |||
1912 | indexVars[i + 1] = -1; | ||
1913 | |||
1914 | i = 0; | ||
1915 | if (index) { | ||
1916 | while (i < *index) i++; | ||
1917 | if (indexVars[i] == -1) return NULL; | ||
1918 | } | ||
1919 | |||
1920 | entry = findEntryByIndex(config, indexVars[i]); | ||
1921 | if (!entry) return NULL; | ||
1922 | |||
1923 | niro | 1940 | line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines); |
1924 | niro | 532 | if (!line) return NULL; |
1925 | |||
1926 | if (index) *index = indexVars[i]; | ||
1927 | return entry; | ||
1928 | } | ||
1929 | |||
1930 | if (!strcmp(kernel, "DEFAULT")) { | ||
1931 | if (index && *index > config->defaultImage) { | ||
1932 | entry = NULL; | ||
1933 | } else { | ||
1934 | entry = findEntryByIndex(config, config->defaultImage); | ||
1935 | if (entry && entry->skip) | ||
1936 | entry = NULL; | ||
1937 | else if (index) | ||
1938 | *index = config->defaultImage; | ||
1939 | } | ||
1940 | } else if (!strcmp(kernel, "ALL")) { | ||
1941 | if (index) | ||
1942 | i = *index; | ||
1943 | else | ||
1944 | i = 0; | ||
1945 | |||
1946 | while ((entry = findEntryByIndex(config, i))) { | ||
1947 | if (!entry->skip) break; | ||
1948 | i++; | ||
1949 | } | ||
1950 | |||
1951 | if (entry && index) | ||
1952 | *index = i; | ||
1953 | } else { | ||
1954 | if (index) | ||
1955 | i = *index; | ||
1956 | else | ||
1957 | i = 0; | ||
1958 | |||
1959 | if (!strncmp(kernel, "TITLE=", 6)) { | ||
1960 | prefix = ""; | ||
1961 | niro | 1801 | checkType = LT_TITLE|LT_MENUENTRY; |
1962 | niro | 532 | kernel += 6; |
1963 | } | ||
1964 | |||
1965 | niro | 914 | for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) { |
1966 | if (entry->skip) continue; | ||
1967 | niro | 532 | |
1968 | niro | 914 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry); |
1969 | niro | 532 | |
1970 | niro | 914 | /* check all the lines matching checkType */ |
1971 | for (line = entry->lines; line; line = line->next) { | ||
1972 | niro | 2052 | enum lineType_e ct = checkType; |
1973 | if (entry->multiboot && checkType == LT_KERNEL) | ||
1974 | ct = LT_KERNEL|LT_KERNEL_EFI|LT_MBMODULE|LT_HYPER; | ||
1975 | else if (checkType & LT_KERNEL) | ||
1976 | ct = checkType | LT_KERNEL_EFI; | ||
1977 | line = getLineByType(ct, line); | ||
1978 | if (!line) | ||
1979 | break; /* not found in this entry */ | ||
1980 | niro | 532 | |
1981 | niro | 1801 | if (line && line->type != LT_MENUENTRY && |
1982 | line->numElements >= 2) { | ||
1983 | niro | 914 | rootspec = getRootSpecifier(line->elements[1].item); |
1984 | if (!strcmp(line->elements[1].item + | ||
1985 | ((rootspec != NULL) ? strlen(rootspec) : 0), | ||
1986 | kernel + strlen(prefix))) | ||
1987 | break; | ||
1988 | } | ||
1989 | niro | 1801 | if(line->type == LT_MENUENTRY && |
1990 | !strcmp(line->elements[1].item, kernel)) | ||
1991 | break; | ||
1992 | niro | 914 | } |
1993 | |||
1994 | /* make sure this entry has a kernel identifier; this skips | ||
1995 | * non-Linux boot entries (could find netbsd etc, though, which is | ||
1996 | * unfortunate) | ||
1997 | */ | ||
1998 | niro | 1940 | if (line && getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines)) |
1999 | niro | 914 | break; /* found 'im! */ |
2000 | niro | 532 | } |
2001 | |||
2002 | if (index) *index = i; | ||
2003 | } | ||
2004 | |||
2005 | return entry; | ||
2006 | } | ||
2007 | |||
2008 | niro | 2252 | struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title, |
2009 | int * index) { | ||
2010 | struct singleEntry * entry; | ||
2011 | struct singleLine * line; | ||
2012 | int i; | ||
2013 | char * newtitle; | ||
2014 | |||
2015 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { | ||
2016 | if (index && i < *index) | ||
2017 | continue; | ||
2018 | line = getLineByType(LT_TITLE, entry->lines); | ||
2019 | if (!line) | ||
2020 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
2021 | if (!line) | ||
2022 | continue; | ||
2023 | newtitle = grub2ExtractTitle(line); | ||
2024 | if (!newtitle) | ||
2025 | continue; | ||
2026 | if (!strcmp(title, newtitle)) | ||
2027 | break; | ||
2028 | } | ||
2029 | |||
2030 | if (!entry) | ||
2031 | return NULL; | ||
2032 | |||
2033 | if (index) | ||
2034 | *index = i; | ||
2035 | return entry; | ||
2036 | } | ||
2037 | |||
2038 | niro | 532 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) { |
2039 | struct singleEntry * entry; | ||
2040 | |||
2041 | entry = cfg->entries; | ||
2042 | while (index && entry) { | ||
2043 | entry = entry->next; | ||
2044 | index--; | ||
2045 | } | ||
2046 | |||
2047 | return entry; | ||
2048 | } | ||
2049 | |||
2050 | /* Find a good template to use for the new kernel. An entry is | ||
2051 | * good if the kernel and mkinitrd exist (even if the entry | ||
2052 | * is going to be removed). Try and use the default entry, but | ||
2053 | * if that doesn't work just take the first. If we can't find one, | ||
2054 | * bail. */ | ||
2055 | struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix, | ||
2056 | int * indexPtr, int skipRemoved, int flags) { | ||
2057 | struct singleEntry * entry, * entry2; | ||
2058 | int index; | ||
2059 | |||
2060 | niro | 2252 | if (cfg->cfi->defaultIsSaved) { |
2061 | if (cfg->cfi->getEnv) { | ||
2062 | char *defTitle = cfg->cfi->getEnv(cfg->cfi, "saved_entry"); | ||
2063 | if (defTitle) { | ||
2064 | int index = 0; | ||
2065 | entry = findEntryByTitle(cfg, defTitle, &index); | ||
2066 | } | ||
2067 | } | ||
2068 | } else if (cfg->defaultImage > -1) { | ||
2069 | niro | 532 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2070 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { | ||
2071 | if (indexPtr) *indexPtr = cfg->defaultImage; | ||
2072 | return entry; | ||
2073 | } | ||
2074 | } | ||
2075 | |||
2076 | index = 0; | ||
2077 | while ((entry = findEntryByIndex(cfg, index))) { | ||
2078 | if (suitableImage(entry, prefix, skipRemoved, flags)) { | ||
2079 | int j; | ||
2080 | for (j = 0; j < index; j++) { | ||
2081 | entry2 = findEntryByIndex(cfg, j); | ||
2082 | if (entry2->skip) index--; | ||
2083 | } | ||
2084 | if (indexPtr) *indexPtr = index; | ||
2085 | |||
2086 | return entry; | ||
2087 | } | ||
2088 | |||
2089 | index++; | ||
2090 | } | ||
2091 | |||
2092 | fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n")); | ||
2093 | |||
2094 | return NULL; | ||
2095 | } | ||
2096 | |||
2097 | char * findBootPrefix(void) { | ||
2098 | struct stat sb, sb2; | ||
2099 | |||
2100 | stat("/", &sb); | ||
2101 | #ifdef __ia64__ | ||
2102 | stat("/boot/efi/EFI/redhat/", &sb2); | ||
2103 | #else | ||
2104 | stat("/boot", &sb2); | ||
2105 | #endif | ||
2106 | |||
2107 | if (sb.st_dev == sb2.st_dev) | ||
2108 | return strdup(""); | ||
2109 | |||
2110 | #ifdef __ia64__ | ||
2111 | return strdup("/boot/efi/EFI/redhat/"); | ||
2112 | #else | ||
2113 | return strdup("/boot"); | ||
2114 | #endif | ||
2115 | } | ||
2116 | |||
2117 | void markRemovedImage(struct grubConfig * cfg, const char * image, | ||
2118 | const char * prefix) { | ||
2119 | struct singleEntry * entry; | ||
2120 | |||
2121 | niro | 1801 | if (!image) |
2122 | return; | ||
2123 | niro | 532 | |
2124 | niro | 1801 | /* check and see if we're removing the default image */ |
2125 | if (isdigit(*image)) { | ||
2126 | entry = findEntryByPath(cfg, image, prefix, NULL); | ||
2127 | if(entry) | ||
2128 | entry->skip = 1; | ||
2129 | return; | ||
2130 | } | ||
2131 | |||
2132 | niro | 532 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2133 | entry->skip = 1; | ||
2134 | } | ||
2135 | |||
2136 | void setDefaultImage(struct grubConfig * config, int hasNew, | ||
2137 | const char * defaultKernelPath, int newIsDefault, | ||
2138 | niro | 1859 | const char * prefix, int flags, int index) { |
2139 | niro | 532 | struct singleEntry * entry, * entry2, * newDefault; |
2140 | int i, j; | ||
2141 | |||
2142 | if (newIsDefault) { | ||
2143 | config->defaultImage = 0; | ||
2144 | return; | ||
2145 | niro | 1859 | } else if ((index >= 0) && config->cfi->defaultIsIndex) { |
2146 | if (findEntryByIndex(config, index)) | ||
2147 | config->defaultImage = index; | ||
2148 | else | ||
2149 | config->defaultImage = -1; | ||
2150 | return; | ||
2151 | niro | 532 | } else if (defaultKernelPath) { |
2152 | i = 0; | ||
2153 | if (findEntryByPath(config, defaultKernelPath, prefix, &i)) { | ||
2154 | config->defaultImage = i; | ||
2155 | } else { | ||
2156 | config->defaultImage = -1; | ||
2157 | return; | ||
2158 | } | ||
2159 | } | ||
2160 | |||
2161 | /* defaultImage now points to what we'd like to use, but before any order | ||
2162 | changes */ | ||
2163 | niro | 1748 | if ((config->defaultImage == DEFAULT_SAVED) || |
2164 | (config->defaultImage == DEFAULT_SAVED_GRUB2)) | ||
2165 | niro | 532 | /* default is set to saved, we don't want to change it */ |
2166 | return; | ||
2167 | |||
2168 | if (config->defaultImage > -1) | ||
2169 | entry = findEntryByIndex(config, config->defaultImage); | ||
2170 | else | ||
2171 | entry = NULL; | ||
2172 | |||
2173 | if (entry && !entry->skip) { | ||
2174 | /* we can preserve the default */ | ||
2175 | if (hasNew) | ||
2176 | config->defaultImage++; | ||
2177 | |||
2178 | /* count the number of entries erased before this one */ | ||
2179 | for (j = 0; j < config->defaultImage; j++) { | ||
2180 | entry2 = findEntryByIndex(config, j); | ||
2181 | if (entry2->skip) config->defaultImage--; | ||
2182 | } | ||
2183 | } else if (hasNew) { | ||
2184 | config->defaultImage = 0; | ||
2185 | } else { | ||
2186 | /* Either we just erased the default (or the default line was bad | ||
2187 | * to begin with) and didn't put a new one in. We'll use the first | ||
2188 | * valid image. */ | ||
2189 | newDefault = findTemplate(config, prefix, &config->defaultImage, 1, | ||
2190 | flags); | ||
2191 | if (!newDefault) | ||
2192 | config->defaultImage = -1; | ||
2193 | } | ||
2194 | } | ||
2195 | |||
2196 | void setFallbackImage(struct grubConfig * config, int hasNew) { | ||
2197 | struct singleEntry * entry, * entry2; | ||
2198 | int j; | ||
2199 | |||
2200 | if (config->fallbackImage == -1) return; | ||
2201 | |||
2202 | entry = findEntryByIndex(config, config->fallbackImage); | ||
2203 | if (!entry || entry->skip) { | ||
2204 | config->fallbackImage = -1; | ||
2205 | return; | ||
2206 | } | ||
2207 | |||
2208 | if (hasNew) | ||
2209 | config->fallbackImage++; | ||
2210 | |||
2211 | /* count the number of entries erased before this one */ | ||
2212 | for (j = 0; j < config->fallbackImage; j++) { | ||
2213 | entry2 = findEntryByIndex(config, j); | ||
2214 | if (entry2->skip) config->fallbackImage--; | ||
2215 | } | ||
2216 | } | ||
2217 | |||
2218 | void displayEntry(struct singleEntry * entry, const char * prefix, int index) { | ||
2219 | struct singleLine * line; | ||
2220 | char * root = NULL; | ||
2221 | int i; | ||
2222 | |||
2223 | printf("index=%d\n", index); | ||
2224 | |||
2225 | niro | 1940 | line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines); |
2226 | niro | 914 | if (!line) { |
2227 | printf("non linux entry\n"); | ||
2228 | return; | ||
2229 | } | ||
2230 | |||
2231 | niro | 1849 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2232 | printf("kernel=%s\n", line->elements[1].item); | ||
2233 | else | ||
2234 | printf("kernel=%s%s\n", prefix, line->elements[1].item); | ||
2235 | niro | 532 | |
2236 | if (line->numElements >= 3) { | ||
2237 | printf("args=\""); | ||
2238 | i = 2; | ||
2239 | while (i < line->numElements) { | ||
2240 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
2241 | root = line->elements[i].item + 5; | ||
2242 | } else { | ||
2243 | printf("%s%s", line->elements[i].item, | ||
2244 | line->elements[i].indent); | ||
2245 | } | ||
2246 | |||
2247 | i++; | ||
2248 | } | ||
2249 | printf("\"\n"); | ||
2250 | } else { | ||
2251 | niro | 914 | line = getLineByType(LT_KERNELARGS, entry->lines); |
2252 | niro | 532 | if (line) { |
2253 | char * s; | ||
2254 | |||
2255 | printf("args=\""); | ||
2256 | i = 1; | ||
2257 | while (i < line->numElements) { | ||
2258 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
2259 | root = line->elements[i].item + 5; | ||
2260 | } else { | ||
2261 | s = line->elements[i].item; | ||
2262 | |||
2263 | printf("%s%s", s, line->elements[i].indent); | ||
2264 | } | ||
2265 | |||
2266 | i++; | ||
2267 | } | ||
2268 | |||
2269 | s = line->elements[i - 1].indent; | ||
2270 | printf("\"\n"); | ||
2271 | } | ||
2272 | } | ||
2273 | |||
2274 | if (!root) { | ||
2275 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
2276 | niro | 532 | if (line && line->numElements >= 2) |
2277 | root=line->elements[1].item; | ||
2278 | } | ||
2279 | |||
2280 | if (root) { | ||
2281 | char * s = alloca(strlen(root) + 1); | ||
2282 | |||
2283 | strcpy(s, root); | ||
2284 | if (s[strlen(s) - 1] == '"') | ||
2285 | s[strlen(s) - 1] = '\0'; | ||
2286 | /* make sure the root doesn't have a trailing " */ | ||
2287 | printf("root=%s\n", s); | ||
2288 | } | ||
2289 | |||
2290 | niro | 1940 | line = getLineByType(LT_INITRD|LT_INITRD_EFI, entry->lines); |
2291 | niro | 532 | |
2292 | if (line && line->numElements >= 2) { | ||
2293 | niro | 1849 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2294 | printf("initrd="); | ||
2295 | else | ||
2296 | printf("initrd=%s", prefix); | ||
2297 | |||
2298 | niro | 532 | for (i = 1; i < line->numElements; i++) |
2299 | printf("%s%s", line->elements[i].item, line->elements[i].indent); | ||
2300 | printf("\n"); | ||
2301 | } | ||
2302 | niro | 1751 | |
2303 | line = getLineByType(LT_TITLE, entry->lines); | ||
2304 | if (line) { | ||
2305 | printf("title=%s\n", line->elements[1].item); | ||
2306 | } else { | ||
2307 | char * title; | ||
2308 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
2309 | title = grub2ExtractTitle(line); | ||
2310 | if (title) | ||
2311 | printf("title=%s\n", title); | ||
2312 | } | ||
2313 | niro | 532 | } |
2314 | |||
2315 | niro | 1850 | int isSuseSystem(void) { |
2316 | const char * path; | ||
2317 | const static char default_path[] = "/etc/SuSE-release"; | ||
2318 | |||
2319 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) | ||
2320 | path = default_path; | ||
2321 | |||
2322 | if (!access(path, R_OK)) | ||
2323 | return 1; | ||
2324 | return 0; | ||
2325 | } | ||
2326 | |||
2327 | int isSuseGrubConf(const char * path) { | ||
2328 | FILE * grubConf; | ||
2329 | char * line = NULL; | ||
2330 | size_t len = 0, res = 0; | ||
2331 | |||
2332 | grubConf = fopen(path, "r"); | ||
2333 | if (!grubConf) { | ||
2334 | dbgPrintf("Could not open SuSE configuration file '%s'\n", path); | ||
2335 | return 0; | ||
2336 | } | ||
2337 | |||
2338 | while ((res = getline(&line, &len, grubConf)) != -1) { | ||
2339 | if (!strncmp(line, "setup", 5)) { | ||
2340 | fclose(grubConf); | ||
2341 | free(line); | ||
2342 | return 1; | ||
2343 | } | ||
2344 | } | ||
2345 | |||
2346 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", | ||
2347 | path); | ||
2348 | |||
2349 | fclose(grubConf); | ||
2350 | free(line); | ||
2351 | return 0; | ||
2352 | } | ||
2353 | |||
2354 | int suseGrubConfGetLba(const char * path, int * lbaPtr) { | ||
2355 | FILE * grubConf; | ||
2356 | char * line = NULL; | ||
2357 | size_t res = 0, len = 0; | ||
2358 | |||
2359 | if (!path) return 1; | ||
2360 | if (!lbaPtr) return 1; | ||
2361 | |||
2362 | grubConf = fopen(path, "r"); | ||
2363 | if (!grubConf) return 1; | ||
2364 | |||
2365 | while ((res = getline(&line, &len, grubConf)) != -1) { | ||
2366 | if (line[res - 1] == '\n') | ||
2367 | line[res - 1] = '\0'; | ||
2368 | else if (len > res) | ||
2369 | line[res] = '\0'; | ||
2370 | else { | ||
2371 | line = realloc(line, res + 1); | ||
2372 | line[res] = '\0'; | ||
2373 | } | ||
2374 | |||
2375 | if (!strncmp(line, "setup", 5)) { | ||
2376 | if (strstr(line, "--force-lba")) { | ||
2377 | *lbaPtr = 1; | ||
2378 | } else { | ||
2379 | *lbaPtr = 0; | ||
2380 | } | ||
2381 | dbgPrintf("lba: %i\n", *lbaPtr); | ||
2382 | break; | ||
2383 | } | ||
2384 | } | ||
2385 | |||
2386 | free(line); | ||
2387 | fclose(grubConf); | ||
2388 | return 0; | ||
2389 | } | ||
2390 | |||
2391 | int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) { | ||
2392 | FILE * grubConf; | ||
2393 | char * line = NULL; | ||
2394 | size_t res = 0, len = 0; | ||
2395 | char * lastParamPtr = NULL; | ||
2396 | char * secLastParamPtr = NULL; | ||
2397 | char installDeviceNumber = '\0'; | ||
2398 | char * bounds = NULL; | ||
2399 | |||
2400 | if (!path) return 1; | ||
2401 | if (!devicePtr) return 1; | ||
2402 | |||
2403 | grubConf = fopen(path, "r"); | ||
2404 | if (!grubConf) return 1; | ||
2405 | |||
2406 | while ((res = getline(&line, &len, grubConf)) != -1) { | ||
2407 | if (strncmp(line, "setup", 5)) | ||
2408 | continue; | ||
2409 | |||
2410 | if (line[res - 1] == '\n') | ||
2411 | line[res - 1] = '\0'; | ||
2412 | else if (len > res) | ||
2413 | line[res] = '\0'; | ||
2414 | else { | ||
2415 | line = realloc(line, res + 1); | ||
2416 | line[res] = '\0'; | ||
2417 | } | ||
2418 | |||
2419 | lastParamPtr = bounds = line + res; | ||
2420 | |||
2421 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ | ||
2422 | while (!isspace(*lastParamPtr)) | ||
2423 | lastParamPtr--; | ||
2424 | lastParamPtr++; | ||
2425 | |||
2426 | secLastParamPtr = lastParamPtr - 2; | ||
2427 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); | ||
2428 | |||
2429 | if (lastParamPtr + 3 > bounds) { | ||
2430 | dbgPrintf("lastParamPtr going over boundary"); | ||
2431 | fclose(grubConf); | ||
2432 | free(line); | ||
2433 | return 1; | ||
2434 | } | ||
2435 | if (!strncmp(lastParamPtr, "(hd", 3)) | ||
2436 | lastParamPtr += 3; | ||
2437 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); | ||
2438 | |||
2439 | /* | ||
2440 | * Second last parameter will decide wether last parameter is | ||
2441 | * an IMAGE_DEVICE or INSTALL_DEVICE | ||
2442 | */ | ||
2443 | while (!isspace(*secLastParamPtr)) | ||
2444 | secLastParamPtr--; | ||
2445 | secLastParamPtr++; | ||
2446 | |||
2447 | if (secLastParamPtr + 3 > bounds) { | ||
2448 | dbgPrintf("secLastParamPtr going over boundary"); | ||
2449 | fclose(grubConf); | ||
2450 | free(line); | ||
2451 | return 1; | ||
2452 | } | ||
2453 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); | ||
2454 | if (!strncmp(secLastParamPtr, "(hd", 3)) { | ||
2455 | secLastParamPtr += 3; | ||
2456 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); | ||
2457 | installDeviceNumber = *secLastParamPtr; | ||
2458 | } else { | ||
2459 | installDeviceNumber = *lastParamPtr; | ||
2460 | } | ||
2461 | |||
2462 | *devicePtr = malloc(6); | ||
2463 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); | ||
2464 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); | ||
2465 | fclose(grubConf); | ||
2466 | free(line); | ||
2467 | return 0; | ||
2468 | } | ||
2469 | |||
2470 | free(line); | ||
2471 | fclose(grubConf); | ||
2472 | return 1; | ||
2473 | } | ||
2474 | |||
2475 | int grubGetBootFromDeviceMap(const char * device, | ||
2476 | char ** bootPtr) { | ||
2477 | FILE * deviceMap; | ||
2478 | char * line = NULL; | ||
2479 | size_t res = 0, len = 0; | ||
2480 | char * devicePtr; | ||
2481 | char * bounds = NULL; | ||
2482 | const char * path; | ||
2483 | const static char default_path[] = "/boot/grub/device.map"; | ||
2484 | |||
2485 | if (!device) return 1; | ||
2486 | if (!bootPtr) return 1; | ||
2487 | |||
2488 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) | ||
2489 | path = default_path; | ||
2490 | |||
2491 | dbgPrintf("opening grub device.map file from: %s\n", path); | ||
2492 | deviceMap = fopen(path, "r"); | ||
2493 | if (!deviceMap) | ||
2494 | return 1; | ||
2495 | |||
2496 | while ((res = getline(&line, &len, deviceMap)) != -1) { | ||
2497 | if (!strncmp(line, "#", 1)) | ||
2498 | continue; | ||
2499 | |||
2500 | if (line[res - 1] == '\n') | ||
2501 | line[res - 1] = '\0'; | ||
2502 | else if (len > res) | ||
2503 | line[res] = '\0'; | ||
2504 | else { | ||
2505 | line = realloc(line, res + 1); | ||
2506 | line[res] = '\0'; | ||
2507 | } | ||
2508 | |||
2509 | devicePtr = line; | ||
2510 | bounds = line + res; | ||
2511 | |||
2512 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) | ||
2513 | devicePtr++; | ||
2514 | dbgPrintf("device: %s\n", devicePtr); | ||
2515 | |||
2516 | if (!strncmp(devicePtr, device, strlen(device))) { | ||
2517 | devicePtr += strlen(device); | ||
2518 | while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds)) | ||
2519 | devicePtr++; | ||
2520 | |||
2521 | *bootPtr = strdup(devicePtr); | ||
2522 | break; | ||
2523 | } | ||
2524 | } | ||
2525 | |||
2526 | free(line); | ||
2527 | fclose(deviceMap); | ||
2528 | return 0; | ||
2529 | } | ||
2530 | |||
2531 | int suseGrubConfGetBoot(const char * path, char ** bootPtr) { | ||
2532 | char * grubDevice; | ||
2533 | |||
2534 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) | ||
2535 | dbgPrintf("error looking for grub installation device\n"); | ||
2536 | else | ||
2537 | dbgPrintf("grubby installation device: %s\n", grubDevice); | ||
2538 | |||
2539 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) | ||
2540 | dbgPrintf("error looking for grub boot device\n"); | ||
2541 | else | ||
2542 | dbgPrintf("grubby boot device: %s\n", *bootPtr); | ||
2543 | |||
2544 | free(grubDevice); | ||
2545 | return 0; | ||
2546 | } | ||
2547 | |||
2548 | int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) { | ||
2549 | /* | ||
2550 | * This SuSE grub configuration file at this location is not your average | ||
2551 | * grub configuration file, but instead the grub commands used to setup | ||
2552 | * grub on that system. | ||
2553 | */ | ||
2554 | const char * path; | ||
2555 | const static char default_path[] = "/etc/grub.conf"; | ||
2556 | |||
2557 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) | ||
2558 | path = default_path; | ||
2559 | |||
2560 | if (!isSuseGrubConf(path)) return 1; | ||
2561 | |||
2562 | if (lbaPtr) { | ||
2563 | *lbaPtr = 0; | ||
2564 | if (suseGrubConfGetLba(path, lbaPtr)) | ||
2565 | return 1; | ||
2566 | } | ||
2567 | |||
2568 | if (bootPtr) { | ||
2569 | *bootPtr = NULL; | ||
2570 | suseGrubConfGetBoot(path, bootPtr); | ||
2571 | } | ||
2572 | |||
2573 | return 0; | ||
2574 | } | ||
2575 | |||
2576 | niro | 532 | int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) { |
2577 | FILE * in; | ||
2578 | char buf[1024]; | ||
2579 | char * chptr; | ||
2580 | char * start; | ||
2581 | char * param; | ||
2582 | |||
2583 | niro | 926 | in = fopen("/etc/conf.d/grub", "r"); |
2584 | niro | 532 | if (!in) return 1; |
2585 | |||
2586 | if (lbaPtr) *lbaPtr = 0; | ||
2587 | if (bootPtr) *bootPtr = NULL; | ||
2588 | |||
2589 | while (fgets(buf, sizeof(buf), in)) { | ||
2590 | start = buf; | ||
2591 | while (isspace(*start)) start++; | ||
2592 | if (*start == '#') continue; | ||
2593 | |||
2594 | chptr = strchr(start, '='); | ||
2595 | if (!chptr) continue; | ||
2596 | chptr--; | ||
2597 | while (*chptr && isspace(*chptr)) chptr--; | ||
2598 | chptr++; | ||
2599 | *chptr = '\0'; | ||
2600 | |||
2601 | param = chptr + 1; | ||
2602 | while (*param && isspace(*param)) param++; | ||
2603 | if (*param == '=') { | ||
2604 | param++; | ||
2605 | while (*param && isspace(*param)) param++; | ||
2606 | } | ||
2607 | |||
2608 | chptr = param; | ||
2609 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2610 | *chptr = '\0'; | ||
2611 | |||
2612 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) | ||
2613 | *lbaPtr = 1; | ||
2614 | else if (!strcmp(start, "boot") && bootPtr) | ||
2615 | *bootPtr = strdup(param); | ||
2616 | } | ||
2617 | |||
2618 | fclose(in); | ||
2619 | |||
2620 | return 0; | ||
2621 | } | ||
2622 | |||
2623 | void dumpSysconfigGrub(void) { | ||
2624 | niro | 1850 | char * boot = NULL; |
2625 | niro | 532 | int lba; |
2626 | |||
2627 | niro | 1851 | if (isSuseSystem()) { |
2628 | if (parseSuseGrubConf(&lba, &boot)) { | ||
2629 | niro | 1850 | free(boot); |
2630 | return; | ||
2631 | } | ||
2632 | } else { | ||
2633 | niro | 1851 | if (parseSysconfigGrub(&lba, &boot)) { |
2634 | niro | 1850 | free(boot); |
2635 | return; | ||
2636 | } | ||
2637 | niro | 532 | } |
2638 | niro | 1850 | |
2639 | if (lba) printf("lba\n"); | ||
2640 | if (boot) { | ||
2641 | printf("boot=%s\n", boot); | ||
2642 | free(boot); | ||
2643 | } | ||
2644 | niro | 532 | } |
2645 | |||
2646 | int displayInfo(struct grubConfig * config, char * kernel, | ||
2647 | const char * prefix) { | ||
2648 | int i = 0; | ||
2649 | struct singleEntry * entry; | ||
2650 | struct singleLine * line; | ||
2651 | |||
2652 | entry = findEntryByPath(config, kernel, prefix, &i); | ||
2653 | if (!entry) { | ||
2654 | fprintf(stderr, _("grubby: kernel not found\n")); | ||
2655 | return 1; | ||
2656 | } | ||
2657 | |||
2658 | niro | 926 | /* this is a horrible hack to support /etc/conf.d/grub; there must |
2659 | niro | 532 | be a better way */ |
2660 | if (config->cfi == &grubConfigType) { | ||
2661 | dumpSysconfigGrub(); | ||
2662 | } else { | ||
2663 | niro | 914 | line = getLineByType(LT_BOOT, config->theLines); |
2664 | niro | 532 | if (line && line->numElements >= 1) { |
2665 | printf("boot=%s\n", line->elements[1].item); | ||
2666 | } | ||
2667 | |||
2668 | niro | 914 | line = getLineByType(LT_LBA, config->theLines); |
2669 | niro | 532 | if (line) printf("lba\n"); |
2670 | } | ||
2671 | |||
2672 | displayEntry(entry, prefix, i); | ||
2673 | |||
2674 | i++; | ||
2675 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { | ||
2676 | displayEntry(entry, prefix, i); | ||
2677 | i++; | ||
2678 | } | ||
2679 | |||
2680 | return 0; | ||
2681 | } | ||
2682 | |||
2683 | niro | 914 | struct singleLine * addLineTmpl(struct singleEntry * entry, |
2684 | struct singleLine * tmplLine, | ||
2685 | struct singleLine * prevLine, | ||
2686 | const char * val, | ||
2687 | struct configFileInfo * cfi) | ||
2688 | { | ||
2689 | struct singleLine * newLine = lineDup(tmplLine); | ||
2690 | |||
2691 | niro | 1940 | if (isEfi && cfi == &grub2ConfigType) { |
2692 | enum lineType_e old = newLine->type; | ||
2693 | newLine->type = preferredLineType(newLine->type, cfi); | ||
2694 | if (old != newLine->type) | ||
2695 | newLine->elements[0].item = getKeyByType(newLine->type, cfi); | ||
2696 | } | ||
2697 | |||
2698 | niro | 914 | if (val) { |
2699 | /* override the inherited value with our own. | ||
2700 | * This is a little weak because it only applies to elements[1] | ||
2701 | */ | ||
2702 | if (newLine->numElements > 1) | ||
2703 | removeElement(newLine, 1); | ||
2704 | insertElement(newLine, val, 1, cfi); | ||
2705 | |||
2706 | /* but try to keep the rootspec from the template... sigh */ | ||
2707 | niro | 1940 | if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD|LT_KERNEL_EFI|LT_INITRD_EFI)) { |
2708 | niro | 914 | char * rootspec = getRootSpecifier(tmplLine->elements[1].item); |
2709 | if (rootspec != NULL) { | ||
2710 | free(newLine->elements[1].item); | ||
2711 | newLine->elements[1].item = | ||
2712 | sdupprintf("%s%s", rootspec, val); | ||
2713 | } | ||
2714 | } | ||
2715 | } | ||
2716 | |||
2717 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? | ||
2718 | newLine->elements[0].item : ""); | ||
2719 | |||
2720 | if (!entry->lines) { | ||
2721 | /* first one on the list */ | ||
2722 | entry->lines = newLine; | ||
2723 | } else if (prevLine) { | ||
2724 | /* add after prevLine */ | ||
2725 | newLine->next = prevLine->next; | ||
2726 | prevLine->next = newLine; | ||
2727 | } | ||
2728 | |||
2729 | return newLine; | ||
2730 | } | ||
2731 | |||
2732 | niro | 532 | /* val may be NULL */ |
2733 | struct singleLine * addLine(struct singleEntry * entry, | ||
2734 | struct configFileInfo * cfi, | ||
2735 | niro | 914 | enum lineType_e type, char * defaultIndent, |
2736 | const char * val) { | ||
2737 | niro | 532 | struct singleLine * line, * prev; |
2738 | niro | 914 | struct keywordTypes * kw; |
2739 | struct singleLine tmpl; | ||
2740 | niro | 532 | |
2741 | niro | 914 | /* NB: This function shouldn't allocate items on the heap, rather on the |
2742 | * stack since it calls addLineTmpl which will make copies. | ||
2743 | */ | ||
2744 | if (type == LT_TITLE && cfi->titleBracketed) { | ||
2745 | /* we're doing a bracketed title (zipl) */ | ||
2746 | tmpl.type = type; | ||
2747 | tmpl.numElements = 1; | ||
2748 | tmpl.elements = alloca(sizeof(*tmpl.elements)); | ||
2749 | tmpl.elements[0].item = alloca(strlen(val)+3); | ||
2750 | sprintf(tmpl.elements[0].item, "[%s]", val); | ||
2751 | tmpl.elements[0].indent = ""; | ||
2752 | val = NULL; | ||
2753 | niro | 1696 | } else if (type == LT_MENUENTRY) { |
2754 | char *lineend = "--class gnu-linux --class gnu --class os {"; | ||
2755 | if (!val) { | ||
2756 | fprintf(stderr, "Line type LT_MENUENTRY requires a value\n"); | ||
2757 | abort(); | ||
2758 | } | ||
2759 | kw = getKeywordByType(type, cfi); | ||
2760 | if (!kw) { | ||
2761 | fprintf(stderr, "Looking up keyword for unknown type %d\n", type); | ||
2762 | abort(); | ||
2763 | } | ||
2764 | tmpl.indent = ""; | ||
2765 | tmpl.type = type; | ||
2766 | tmpl.numElements = 3; | ||
2767 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
2768 | tmpl.elements[0].item = kw->key; | ||
2769 | tmpl.elements[0].indent = alloca(2); | ||
2770 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
2771 | tmpl.elements[1].item = (char *)val; | ||
2772 | tmpl.elements[1].indent = alloca(2); | ||
2773 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); | ||
2774 | tmpl.elements[2].item = alloca(strlen(lineend)+1); | ||
2775 | strcpy(tmpl.elements[2].item, lineend); | ||
2776 | tmpl.elements[2].indent = ""; | ||
2777 | niro | 914 | } else { |
2778 | kw = getKeywordByType(type, cfi); | ||
2779 | niro | 1696 | if (!kw) { |
2780 | fprintf(stderr, "Looking up keyword for unknown type %d\n", type); | ||
2781 | abort(); | ||
2782 | } | ||
2783 | niro | 914 | tmpl.type = type; |
2784 | tmpl.numElements = val ? 2 : 1; | ||
2785 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
2786 | tmpl.elements[0].item = kw->key; | ||
2787 | tmpl.elements[0].indent = alloca(2); | ||
2788 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
2789 | if (val) { | ||
2790 | tmpl.elements[1].item = (char *)val; | ||
2791 | tmpl.elements[1].indent = ""; | ||
2792 | } | ||
2793 | } | ||
2794 | |||
2795 | niro | 532 | /* The last non-empty line gives us the indention to us and the line |
2796 | to insert after. Note that comments are considered empty lines, which | ||
2797 | may not be ideal? If there are no lines or we are looking at the | ||
2798 | first line, we use defaultIndent (the first line is normally indented | ||
2799 | differently from the rest) */ | ||
2800 | niro | 914 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
2801 | if (line->numElements) prev = line; | ||
2802 | /* fall back on the last line if prev isn't otherwise set */ | ||
2803 | if (!line->next && !prev) prev = line; | ||
2804 | niro | 532 | } |
2805 | |||
2806 | niro | 1696 | struct singleLine *menuEntry; |
2807 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); | ||
2808 | if (tmpl.type == LT_ENTRY_END) { | ||
2809 | if (menuEntry) | ||
2810 | tmpl.indent = menuEntry->indent; | ||
2811 | else | ||
2812 | tmpl.indent = defaultIndent ?: ""; | ||
2813 | } else if (tmpl.type != LT_MENUENTRY) { | ||
2814 | if (menuEntry) | ||
2815 | tmpl.indent = "\t"; | ||
2816 | else if (prev == entry->lines) | ||
2817 | tmpl.indent = defaultIndent ?: ""; | ||
2818 | else | ||
2819 | tmpl.indent = prev->indent; | ||
2820 | } | ||
2821 | niro | 532 | |
2822 | niro | 914 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
2823 | niro | 532 | } |
2824 | |||
2825 | void removeLine(struct singleEntry * entry, struct singleLine * line) { | ||
2826 | struct singleLine * prev; | ||
2827 | int i; | ||
2828 | |||
2829 | for (i = 0; i < line->numElements; i++) { | ||
2830 | free(line->elements[i].item); | ||
2831 | free(line->elements[i].indent); | ||
2832 | } | ||
2833 | free(line->elements); | ||
2834 | free(line->indent); | ||
2835 | |||
2836 | if (line == entry->lines) { | ||
2837 | entry->lines = line->next; | ||
2838 | } else { | ||
2839 | prev = entry->lines; | ||
2840 | while (prev->next != line) prev = prev->next; | ||
2841 | prev->next = line->next; | ||
2842 | } | ||
2843 | |||
2844 | free(line); | ||
2845 | } | ||
2846 | |||
2847 | niro | 1696 | static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi) |
2848 | { | ||
2849 | struct singleLine newLine = { | ||
2850 | .indent = tmplLine->indent, | ||
2851 | .type = tmplLine->type, | ||
2852 | .next = tmplLine->next, | ||
2853 | }; | ||
2854 | int firstQuotedItem = -1; | ||
2855 | int quoteLen = 0; | ||
2856 | int j; | ||
2857 | int element = 0; | ||
2858 | char *c; | ||
2859 | |||
2860 | c = malloc(strlen(tmplLine->elements[0].item) + 1); | ||
2861 | strcpy(c, tmplLine->elements[0].item); | ||
2862 | insertElement(&newLine, c, element++, cfi); | ||
2863 | free(c); | ||
2864 | c = NULL; | ||
2865 | |||
2866 | for (j = 1; j < tmplLine->numElements; j++) { | ||
2867 | if (firstQuotedItem == -1) { | ||
2868 | quoteLen += strlen(tmplLine->elements[j].item); | ||
2869 | |||
2870 | if (isquote(tmplLine->elements[j].item[0])) { | ||
2871 | firstQuotedItem = j; | ||
2872 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
2873 | } else { | ||
2874 | c = malloc(quoteLen + 1); | ||
2875 | strcpy(c, tmplLine->elements[j].item); | ||
2876 | insertElement(&newLine, c, element++, cfi); | ||
2877 | free(c); | ||
2878 | quoteLen = 0; | ||
2879 | } | ||
2880 | } else { | ||
2881 | int itemlen = strlen(tmplLine->elements[j].item); | ||
2882 | quoteLen += itemlen; | ||
2883 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
2884 | |||
2885 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { | ||
2886 | c = malloc(quoteLen + 1); | ||
2887 | c[0] = '\0'; | ||
2888 | for (int i = firstQuotedItem; i < j+1; i++) { | ||
2889 | strcat(c, tmplLine->elements[i].item); | ||
2890 | strcat(c, tmplLine->elements[i].indent); | ||
2891 | } | ||
2892 | insertElement(&newLine, c, element++, cfi); | ||
2893 | free(c); | ||
2894 | |||
2895 | firstQuotedItem = -1; | ||
2896 | quoteLen = 0; | ||
2897 | } | ||
2898 | } | ||
2899 | } | ||
2900 | while (tmplLine->numElements) | ||
2901 | removeElement(tmplLine, 0); | ||
2902 | if (tmplLine->elements) | ||
2903 | free(tmplLine->elements); | ||
2904 | |||
2905 | tmplLine->numElements = newLine.numElements; | ||
2906 | tmplLine->elements = newLine.elements; | ||
2907 | } | ||
2908 | |||
2909 | niro | 914 | static void insertElement(struct singleLine * line, |
2910 | const char * item, int insertHere, | ||
2911 | struct configFileInfo * cfi) | ||
2912 | { | ||
2913 | struct keywordTypes * kw; | ||
2914 | char indent[2] = ""; | ||
2915 | |||
2916 | /* sanity check */ | ||
2917 | if (insertHere > line->numElements) { | ||
2918 | dbgPrintf("insertElement() adjusting insertHere from %d to %d\n", | ||
2919 | insertHere, line->numElements); | ||
2920 | insertHere = line->numElements; | ||
2921 | } | ||
2922 | |||
2923 | line->elements = realloc(line->elements, (line->numElements + 1) * | ||
2924 | sizeof(*line->elements)); | ||
2925 | memmove(&line->elements[insertHere+1], | ||
2926 | &line->elements[insertHere], | ||
2927 | (line->numElements - insertHere) * | ||
2928 | sizeof(*line->elements)); | ||
2929 | line->elements[insertHere].item = strdup(item); | ||
2930 | |||
2931 | kw = getKeywordByType(line->type, cfi); | ||
2932 | |||
2933 | if (line->numElements == 0) { | ||
2934 | indent[0] = '\0'; | ||
2935 | } else if (insertHere == 0) { | ||
2936 | indent[0] = kw->nextChar; | ||
2937 | } else if (kw->separatorChar != '\0') { | ||
2938 | indent[0] = kw->separatorChar; | ||
2939 | } else { | ||
2940 | indent[0] = ' '; | ||
2941 | } | ||
2942 | |||
2943 | if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') { | ||
2944 | /* move the end-of-line forward */ | ||
2945 | line->elements[insertHere].indent = | ||
2946 | line->elements[insertHere-1].indent; | ||
2947 | line->elements[insertHere-1].indent = strdup(indent); | ||
2948 | } else { | ||
2949 | line->elements[insertHere].indent = strdup(indent); | ||
2950 | } | ||
2951 | |||
2952 | line->numElements++; | ||
2953 | |||
2954 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", | ||
2955 | line->elements[0].item, | ||
2956 | line->elements[insertHere].item, | ||
2957 | line->elements[insertHere].indent, | ||
2958 | insertHere); | ||
2959 | } | ||
2960 | |||
2961 | static void removeElement(struct singleLine * line, int removeHere) { | ||
2962 | int i; | ||
2963 | |||
2964 | /* sanity check */ | ||
2965 | if (removeHere >= line->numElements) return; | ||
2966 | |||
2967 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, | ||
2968 | removeHere, line->elements[removeHere].item); | ||
2969 | |||
2970 | free(line->elements[removeHere].item); | ||
2971 | |||
2972 | if (removeHere > 1) { | ||
2973 | /* previous argument gets this argument's post-indentation */ | ||
2974 | free(line->elements[removeHere-1].indent); | ||
2975 | line->elements[removeHere-1].indent = | ||
2976 | line->elements[removeHere].indent; | ||
2977 | } else { | ||
2978 | free(line->elements[removeHere].indent); | ||
2979 | } | ||
2980 | |||
2981 | /* now collapse the array, but don't bother to realloc smaller */ | ||
2982 | for (i = removeHere; i < line->numElements - 1; i++) | ||
2983 | line->elements[i] = line->elements[i + 1]; | ||
2984 | |||
2985 | line->numElements--; | ||
2986 | } | ||
2987 | |||
2988 | niro | 532 | int argMatch(const char * one, const char * two) { |
2989 | char * first, * second; | ||
2990 | char * chptr; | ||
2991 | |||
2992 | first = strcpy(alloca(strlen(one) + 1), one); | ||
2993 | second = strcpy(alloca(strlen(two) + 1), two); | ||
2994 | |||
2995 | chptr = strchr(first, '='); | ||
2996 | if (chptr) *chptr = '\0'; | ||
2997 | |||
2998 | chptr = strchr(second, '='); | ||
2999 | if (chptr) *chptr = '\0'; | ||
3000 | |||
3001 | return strcmp(first, second); | ||
3002 | } | ||
3003 | |||
3004 | int updateActualImage(struct grubConfig * cfg, const char * image, | ||
3005 | const char * prefix, const char * addArgs, | ||
3006 | const char * removeArgs, int multibootArgs) { | ||
3007 | struct singleEntry * entry; | ||
3008 | struct singleLine * line, * rootLine; | ||
3009 | int index = 0; | ||
3010 | niro | 914 | int i, k; |
3011 | niro | 532 | const char ** newArgs, ** oldArgs; |
3012 | const char ** arg; | ||
3013 | niro | 914 | int useKernelArgs, useRoot; |
3014 | niro | 532 | int firstElement; |
3015 | niro | 1304 | int *usedElements; |
3016 | niro | 914 | int doreplace; |
3017 | niro | 532 | |
3018 | if (!image) return 0; | ||
3019 | |||
3020 | if (!addArgs) { | ||
3021 | newArgs = malloc(sizeof(*newArgs)); | ||
3022 | *newArgs = NULL; | ||
3023 | } else { | ||
3024 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { | ||
3025 | fprintf(stderr, | ||
3026 | _("grubby: error separating arguments '%s'\n"), addArgs); | ||
3027 | return 1; | ||
3028 | } | ||
3029 | } | ||
3030 | |||
3031 | if (!removeArgs) { | ||
3032 | oldArgs = malloc(sizeof(*oldArgs)); | ||
3033 | *oldArgs = NULL; | ||
3034 | } else { | ||
3035 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { | ||
3036 | fprintf(stderr, | ||
3037 | _("grubby: error separating arguments '%s'\n"), removeArgs); | ||
3038 | free(newArgs); | ||
3039 | return 1; | ||
3040 | } | ||
3041 | } | ||
3042 | |||
3043 | |||
3044 | niro | 914 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3045 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); | ||
3046 | niro | 532 | |
3047 | niro | 914 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3048 | && !multibootArgs); | ||
3049 | niro | 532 | |
3050 | niro | 914 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3051 | niro | 532 | |
3052 | niro | 914 | if (multibootArgs && !entry->multiboot) |
3053 | continue; | ||
3054 | niro | 532 | |
3055 | niro | 914 | /* Determine where to put the args. If this config supports |
3056 | * LT_KERNELARGS, use that. Otherwise use | ||
3057 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. | ||
3058 | */ | ||
3059 | if (useKernelArgs) { | ||
3060 | line = getLineByType(LT_KERNELARGS, entry->lines); | ||
3061 | if (!line) { | ||
3062 | /* no LT_KERNELARGS, need to add it */ | ||
3063 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, | ||
3064 | cfg->secondaryIndent, NULL); | ||
3065 | } | ||
3066 | firstElement = 1; | ||
3067 | niro | 532 | |
3068 | niro | 914 | } else if (multibootArgs) { |
3069 | line = getLineByType(LT_HYPER, entry->lines); | ||
3070 | if (!line) { | ||
3071 | /* a multiboot entry without LT_HYPER? */ | ||
3072 | continue; | ||
3073 | } | ||
3074 | firstElement = 2; | ||
3075 | |||
3076 | } else { | ||
3077 | niro | 1940 | line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI, entry->lines); |
3078 | niro | 914 | if (!line) { |
3079 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ | ||
3080 | continue; | ||
3081 | } | ||
3082 | firstElement = 2; | ||
3083 | niro | 532 | } |
3084 | |||
3085 | niro | 914 | /* handle the elilo case which does: |
3086 | * append="hypervisor args -- kernel args" | ||
3087 | */ | ||
3088 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { | ||
3089 | /* this is a multiboot entry, make sure there's | ||
3090 | * -- on the args line | ||
3091 | */ | ||
3092 | for (i = firstElement; i < line->numElements; i++) { | ||
3093 | if (!strcmp(line->elements[i].item, "--")) | ||
3094 | break; | ||
3095 | } | ||
3096 | if (i == line->numElements) { | ||
3097 | /* assume all existing args are kernel args, | ||
3098 | * prepend -- to make it official | ||
3099 | */ | ||
3100 | insertElement(line, "--", firstElement, cfg->cfi); | ||
3101 | i = firstElement; | ||
3102 | } | ||
3103 | if (!multibootArgs) { | ||
3104 | /* kernel args start after the -- */ | ||
3105 | firstElement = i + 1; | ||
3106 | } | ||
3107 | } else if (cfg->cfi->mbConcatArgs) { | ||
3108 | /* this is a non-multiboot entry, remove hyper args */ | ||
3109 | for (i = firstElement; i < line->numElements; i++) { | ||
3110 | if (!strcmp(line->elements[i].item, "--")) | ||
3111 | break; | ||
3112 | } | ||
3113 | if (i < line->numElements) { | ||
3114 | /* remove args up to -- */ | ||
3115 | while (strcmp(line->elements[firstElement].item, "--")) | ||
3116 | removeElement(line, firstElement); | ||
3117 | /* remove -- */ | ||
3118 | removeElement(line, firstElement); | ||
3119 | } | ||
3120 | niro | 532 | } |
3121 | |||
3122 | niro | 914 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3123 | niro | 532 | |
3124 | niro | 914 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3125 | |||
3126 | doreplace = 1; | ||
3127 | niro | 532 | for (i = firstElement; i < line->numElements; i++) { |
3128 | niro | 914 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3129 | !strcmp(line->elements[i].item, "--")) | ||
3130 | { | ||
3131 | /* reached the end of hyper args, insert here */ | ||
3132 | doreplace = 0; | ||
3133 | break; | ||
3134 | } | ||
3135 | niro | 532 | if (usedElements[i]) |
3136 | continue; | ||
3137 | if (!argMatch(line->elements[i].item, *arg)) { | ||
3138 | usedElements[i]=1; | ||
3139 | break; | ||
3140 | } | ||
3141 | } | ||
3142 | |||
3143 | niro | 914 | if (i < line->numElements && doreplace) { |
3144 | /* direct replacement */ | ||
3145 | niro | 532 | free(line->elements[i].item); |
3146 | line->elements[i].item = strdup(*arg); | ||
3147 | |||
3148 | niro | 914 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3149 | /* root= replacement */ | ||
3150 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
3151 | if (rootLine) { | ||
3152 | free(rootLine->elements[1].item); | ||
3153 | rootLine->elements[1].item = strdup(*arg + 5); | ||
3154 | niro | 532 | } else { |
3155 | niro | 914 | rootLine = addLine(entry, cfg->cfi, LT_ROOT, |
3156 | cfg->secondaryIndent, *arg + 5); | ||
3157 | niro | 532 | } |
3158 | niro | 914 | } |
3159 | niro | 532 | |
3160 | niro | 914 | else { |
3161 | /* insert/append */ | ||
3162 | insertElement(line, *arg, i, cfg->cfi); | ||
3163 | usedElements = realloc(usedElements, line->numElements * | ||
3164 | sizeof(*usedElements)); | ||
3165 | memmove(&usedElements[i + 1], &usedElements[i], | ||
3166 | line->numElements - i - 1); | ||
3167 | usedElements[i] = 1; | ||
3168 | niro | 532 | |
3169 | /* if we updated a root= here even though there is a | ||
3170 | LT_ROOT available we need to remove the LT_ROOT entry | ||
3171 | (this will happen if we switch from a device to a label) */ | ||
3172 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
3173 | niro | 914 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3174 | if (rootLine) | ||
3175 | niro | 532 | removeLine(entry, rootLine); |
3176 | } | ||
3177 | } | ||
3178 | } | ||
3179 | |||
3180 | free(usedElements); | ||
3181 | |||
3182 | for (arg = oldArgs; *arg; arg++) { | ||
3183 | niro | 914 | for (i = firstElement; i < line->numElements; i++) { |
3184 | if (multibootArgs && cfg->cfi->mbConcatArgs && | ||
3185 | !strcmp(line->elements[i].item, "--")) | ||
3186 | /* reached the end of hyper args, stop here */ | ||
3187 | niro | 532 | break; |
3188 | niro | 914 | if (!argMatch(line->elements[i].item, *arg)) { |
3189 | removeElement(line, i); | ||
3190 | break; | ||
3191 | niro | 532 | } |
3192 | } | ||
3193 | niro | 914 | /* handle removing LT_ROOT line too */ |
3194 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
3195 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
3196 | if (rootLine) | ||
3197 | removeLine(entry, rootLine); | ||
3198 | } | ||
3199 | niro | 532 | } |
3200 | |||
3201 | if (line->numElements == 1) { | ||
3202 | /* don't need the line at all (note it has to be a | ||
3203 | LT_KERNELARGS for this to happen */ | ||
3204 | removeLine(entry, line); | ||
3205 | } | ||
3206 | } | ||
3207 | |||
3208 | free(newArgs); | ||
3209 | free(oldArgs); | ||
3210 | |||
3211 | return 0; | ||
3212 | } | ||
3213 | |||
3214 | int updateImage(struct grubConfig * cfg, const char * image, | ||
3215 | const char * prefix, const char * addArgs, | ||
3216 | const char * removeArgs, | ||
3217 | const char * addMBArgs, const char * removeMBArgs) { | ||
3218 | int rc = 0; | ||
3219 | |||
3220 | if (!image) return rc; | ||
3221 | |||
3222 | /* update the main args first... */ | ||
3223 | if (addArgs || removeArgs) | ||
3224 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0); | ||
3225 | if (rc) return rc; | ||
3226 | |||
3227 | /* and now any multiboot args */ | ||
3228 | if (addMBArgs || removeMBArgs) | ||
3229 | rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1); | ||
3230 | return rc; | ||
3231 | } | ||
3232 | |||
3233 | niro | 1156 | int updateInitrd(struct grubConfig * cfg, const char * image, |
3234 | const char * prefix, const char * initrd) { | ||
3235 | struct singleEntry * entry; | ||
3236 | niro | 1696 | struct singleLine * line, * kernelLine, *endLine = NULL; |
3237 | niro | 1156 | int index = 0; |
3238 | |||
3239 | if (!image) return 0; | ||
3240 | |||
3241 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { | ||
3242 | niro | 1940 | kernelLine = getLineByType(LT_KERNEL|LT_KERNEL_EFI, entry->lines); |
3243 | niro | 1156 | if (!kernelLine) continue; |
3244 | |||
3245 | niro | 1940 | line = getLineByType(LT_INITRD|LT_INITRD_EFI, entry->lines); |
3246 | niro | 1156 | if (line) |
3247 | removeLine(entry, line); | ||
3248 | if (prefix) { | ||
3249 | int prefixLen = strlen(prefix); | ||
3250 | if (!strncmp(initrd, prefix, prefixLen)) | ||
3251 | initrd += prefixLen; | ||
3252 | } | ||
3253 | niro | 1696 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3254 | if (endLine) | ||
3255 | removeLine(entry, endLine); | ||
3256 | niro | 1940 | line = addLine(entry, cfg->cfi, preferredLineType(LT_INITRD, cfg->cfi), |
3257 | kernelLine->indent, initrd); | ||
3258 | niro | 1696 | if (!line) |
3259 | return 1; | ||
3260 | if (endLine) { | ||
3261 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); | ||
3262 | if (!line) | ||
3263 | return 1; | ||
3264 | } | ||
3265 | |||
3266 | niro | 1156 | break; |
3267 | } | ||
3268 | |||
3269 | return 0; | ||
3270 | } | ||
3271 | |||
3272 | niro | 532 | int checkDeviceBootloader(const char * device, const unsigned char * boot) { |
3273 | int fd; | ||
3274 | unsigned char bootSect[512]; | ||
3275 | int offset; | ||
3276 | |||
3277 | fd = open(device, O_RDONLY); | ||
3278 | if (fd < 0) { | ||
3279 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
3280 | device, strerror(errno)); | ||
3281 | return 1; | ||
3282 | } | ||
3283 | |||
3284 | if (read(fd, bootSect, 512) != 512) { | ||
3285 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
3286 | device, strerror(errno)); | ||
3287 | return 1; | ||
3288 | } | ||
3289 | close(fd); | ||
3290 | |||
3291 | /* first three bytes should match, a jmp short should be in there */ | ||
3292 | if (memcmp(boot, bootSect, 3)) | ||
3293 | return 0; | ||
3294 | |||
3295 | niro | 1718 | if (boot[1] == JMP_SHORT_OPCODE) { |
3296 | niro | 532 | offset = boot[2] + 2; |
3297 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { | ||
3298 | offset = (boot[3] << 8) + boot[2] + 2; | ||
3299 | niro | 1718 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
3300 | offset = boot[1] + 2; | ||
3301 | /* | ||
3302 | * it looks like grub, when copying stage1 into the mbr, patches stage1 | ||
3303 | * right after the JMP location, replacing other instructions such as | ||
3304 | * JMPs for NOOPs. So, relax the check a little bit by skipping those | ||
3305 | * different bytes. | ||
3306 | */ | ||
3307 | if ((bootSect[offset + 1] == NOOP_OPCODE) | ||
3308 | && (bootSect[offset + 2] == NOOP_OPCODE)) { | ||
3309 | offset = offset + 3; | ||
3310 | } | ||
3311 | niro | 532 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
3312 | offset = (boot[2] << 8) + boot[1] + 2; | ||
3313 | } else { | ||
3314 | return 0; | ||
3315 | } | ||
3316 | |||
3317 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) | ||
3318 | return 0; | ||
3319 | |||
3320 | return 2; | ||
3321 | } | ||
3322 | |||
3323 | int checkLiloOnRaid(char * mdDev, const unsigned char * boot) { | ||
3324 | int fd; | ||
3325 | char buf[65536]; | ||
3326 | char * end; | ||
3327 | char * chptr; | ||
3328 | char * chptr2; | ||
3329 | int rc; | ||
3330 | |||
3331 | /* it's on raid; we need to parse /proc/mdstat and check all of the | ||
3332 | *raw* devices listed in there */ | ||
3333 | |||
3334 | if (!strncmp(mdDev, "/dev/", 5)) | ||
3335 | mdDev += 5; | ||
3336 | |||
3337 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { | ||
3338 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), | ||
3339 | strerror(errno)); | ||
3340 | return 2; | ||
3341 | } | ||
3342 | |||
3343 | rc = read(fd, buf, sizeof(buf) - 1); | ||
3344 | if (rc < 0 || rc == (sizeof(buf) - 1)) { | ||
3345 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), | ||
3346 | strerror(errno)); | ||
3347 | close(fd); | ||
3348 | return 2; | ||
3349 | } | ||
3350 | close(fd); | ||
3351 | buf[rc] = '\0'; | ||
3352 | |||
3353 | chptr = buf; | ||
3354 | while (*chptr) { | ||
3355 | end = strchr(chptr, '\n'); | ||
3356 | if (!end) break; | ||
3357 | *end = '\0'; | ||
3358 | |||
3359 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && | ||
3360 | chptr[strlen(mdDev)] == ' ') { | ||
3361 | |||
3362 | /* found the device */ | ||
3363 | while (*chptr && *chptr != ':') chptr++; | ||
3364 | chptr++; | ||
3365 | while (*chptr && isspace(*chptr)) chptr++; | ||
3366 | |||
3367 | /* skip the "active" bit */ | ||
3368 | while (*chptr && !isspace(*chptr)) chptr++; | ||
3369 | while (*chptr && isspace(*chptr)) chptr++; | ||
3370 | |||
3371 | /* skip the raid level */ | ||
3372 | while (*chptr && !isspace(*chptr)) chptr++; | ||
3373 | while (*chptr && isspace(*chptr)) chptr++; | ||
3374 | |||
3375 | /* everything else is partition stuff */ | ||
3376 | while (*chptr) { | ||
3377 | chptr2 = chptr; | ||
3378 | while (*chptr2 && *chptr2 != '[') chptr2++; | ||
3379 | if (!*chptr2) break; | ||
3380 | |||
3381 | /* yank off the numbers at the end */ | ||
3382 | chptr2--; | ||
3383 | while (isdigit(*chptr2) && chptr2 > chptr) chptr2--; | ||
3384 | chptr2++; | ||
3385 | *chptr2 = '\0'; | ||
3386 | |||
3387 | /* Better, now we need the /dev/ back. We're done with | ||
3388 | * everything before this point, so we can just put | ||
3389 | * the /dev/ part there. There will always be room. */ | ||
3390 | memcpy(chptr - 5, "/dev/", 5); | ||
3391 | rc = checkDeviceBootloader(chptr - 5, boot); | ||
3392 | if (rc != 2) { | ||
3393 | return rc; | ||
3394 | } | ||
3395 | |||
3396 | chptr = chptr2 + 1; | ||
3397 | /* skip the [11] bit */ | ||
3398 | while (*chptr && !isspace(*chptr)) chptr++; | ||
3399 | /* and move to the next one */ | ||
3400 | while (*chptr && isspace(*chptr)) chptr++; | ||
3401 | } | ||
3402 | |||
3403 | /* we're good to go */ | ||
3404 | return 2; | ||
3405 | } | ||
3406 | |||
3407 | chptr = end + 1; | ||
3408 | } | ||
3409 | |||
3410 | fprintf(stderr, | ||
3411 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), | ||
3412 | mdDev); | ||
3413 | return 0; | ||
3414 | } | ||
3415 | |||
3416 | int checkForLilo(struct grubConfig * config) { | ||
3417 | int fd; | ||
3418 | unsigned char boot[512]; | ||
3419 | struct singleLine * line; | ||
3420 | |||
3421 | for (line = config->theLines; line; line = line->next) | ||
3422 | if (line->type == LT_BOOT) break; | ||
3423 | |||
3424 | if (!line) { | ||
3425 | fprintf(stderr, | ||
3426 | _("grubby: no boot line found in lilo configuration\n")); | ||
3427 | return 1; | ||
3428 | } | ||
3429 | |||
3430 | if (line->numElements != 2) return 1; | ||
3431 | |||
3432 | fd = open("/boot/boot.b", O_RDONLY); | ||
3433 | if (fd < 0) { | ||
3434 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
3435 | "/boot/boot.b", strerror(errno)); | ||
3436 | return 1; | ||
3437 | } | ||
3438 | |||
3439 | if (read(fd, boot, 512) != 512) { | ||
3440 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
3441 | "/boot/boot.b", strerror(errno)); | ||
3442 | return 1; | ||
3443 | } | ||
3444 | close(fd); | ||
3445 | |||
3446 | if (!strncmp("/dev/md", line->elements[1].item, 7)) | ||
3447 | return checkLiloOnRaid(line->elements[1].item, boot); | ||
3448 | |||
3449 | return checkDeviceBootloader(line->elements[1].item, boot); | ||
3450 | } | ||
3451 | |||
3452 | niro | 1696 | int checkForGrub2(struct grubConfig * config) { |
3453 | niro | 1714 | if (!access("/etc/grub.d/", R_OK)) |
3454 | niro | 1696 | return 2; |
3455 | |||
3456 | return 1; | ||
3457 | } | ||
3458 | |||
3459 | niro | 532 | int checkForGrub(struct grubConfig * config) { |
3460 | int fd; | ||
3461 | unsigned char bootSect[512]; | ||
3462 | char * boot; | ||
3463 | niro | 1851 | int onSuse = isSuseSystem(); |
3464 | niro | 532 | |
3465 | niro | 1851 | |
3466 | if (onSuse) { | ||
3467 | if (parseSuseGrubConf(NULL, &boot)) | ||
3468 | return 0; | ||
3469 | niro | 1850 | } else { |
3470 | niro | 1851 | if (parseSysconfigGrub(NULL, &boot)) |
3471 | return 0; | ||
3472 | niro | 1850 | } |
3473 | niro | 532 | |
3474 | /* assume grub is not installed -- not an error condition */ | ||
3475 | if (!boot) | ||
3476 | return 0; | ||
3477 | |||
3478 | fd = open("/boot/grub/stage1", O_RDONLY); | ||
3479 | if (fd < 0) | ||
3480 | /* this doesn't exist if grub hasn't been installed */ | ||
3481 | return 0; | ||
3482 | |||
3483 | if (read(fd, bootSect, 512) != 512) { | ||
3484 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
3485 | "/boot/grub/stage1", strerror(errno)); | ||
3486 | niro | 914 | close(fd); |
3487 | niro | 532 | return 1; |
3488 | } | ||
3489 | close(fd); | ||
3490 | |||
3491 | niro | 1851 | /* The more elaborate checks do not work on SuSE. The checks done |
3492 | * seem to be reasonble (at least for now), so just return success | ||
3493 | */ | ||
3494 | if (onSuse) | ||
3495 | niro | 1850 | return 2; |
3496 | niro | 1851 | |
3497 | return checkDeviceBootloader(boot, bootSect); | ||
3498 | niro | 532 | } |
3499 | |||
3500 | niro | 914 | int checkForExtLinux(struct grubConfig * config) { |
3501 | int fd; | ||
3502 | unsigned char bootSect[512]; | ||
3503 | char * boot; | ||
3504 | char executable[] = "/boot/extlinux/extlinux"; | ||
3505 | |||
3506 | printf("entered: checkForExtLinux()\n"); | ||
3507 | |||
3508 | if (parseSysconfigGrub(NULL, &boot)) | ||
3509 | return 0; | ||
3510 | |||
3511 | /* assume grub is not installed -- not an error condition */ | ||
3512 | if (!boot) | ||
3513 | return 0; | ||
3514 | |||
3515 | fd = open(executable, O_RDONLY); | ||
3516 | if (fd < 0) | ||
3517 | /* this doesn't exist if grub hasn't been installed */ | ||
3518 | return 0; | ||
3519 | |||
3520 | if (read(fd, bootSect, 512) != 512) { | ||
3521 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
3522 | executable, strerror(errno)); | ||
3523 | return 1; | ||
3524 | } | ||
3525 | close(fd); | ||
3526 | |||
3527 | return checkDeviceBootloader(boot, bootSect); | ||
3528 | } | ||
3529 | |||
3530 | niro | 1853 | int checkForYaboot(struct grubConfig * config) { |
3531 | /* | ||
3532 | * This is a simplistic check that we consider good enough for own puporses | ||
3533 | * | ||
3534 | * If we were to properly check if yaboot is *installed* we'd need to: | ||
3535 | * 1) get the system boot device (LT_BOOT) | ||
3536 | * 2) considering it's a raw filesystem, check if the yaboot binary matches | ||
3537 | * the content on the boot device | ||
3538 | * 3) if not, copy the binary to a temporary file and run "addnote" on it | ||
3539 | * 4) check again if binary and boot device contents match | ||
3540 | */ | ||
3541 | if (!access("/etc/yaboot.conf", R_OK)) | ||
3542 | return 2; | ||
3543 | |||
3544 | return 1; | ||
3545 | } | ||
3546 | |||
3547 | niro | 1854 | int checkForElilo(struct grubConfig * config) { |
3548 | if (!access("/etc/elilo.conf", R_OK)) | ||
3549 | return 2; | ||
3550 | |||
3551 | return 1; | ||
3552 | } | ||
3553 | |||
3554 | niro | 532 | static char * getRootSpecifier(char * str) { |
3555 | char * idx, * rootspec = NULL; | ||
3556 | |||
3557 | if (*str == '(') { | ||
3558 | idx = rootspec = strdup(str); | ||
3559 | while(*idx && (*idx != ')') && (!isspace(*idx))) idx++; | ||
3560 | *(++idx) = '\0'; | ||
3561 | } | ||
3562 | return rootspec; | ||
3563 | } | ||
3564 | |||
3565 | niro | 914 | static char * getInitrdVal(struct grubConfig * config, |
3566 | const char * prefix, struct singleLine *tmplLine, | ||
3567 | const char * newKernelInitrd, | ||
3568 | niro | 1844 | const char ** extraInitrds, int extraInitrdCount) |
3569 | niro | 914 | { |
3570 | char *initrdVal, *end; | ||
3571 | int i; | ||
3572 | size_t totalSize; | ||
3573 | size_t prefixLen; | ||
3574 | char separatorChar; | ||
3575 | |||
3576 | prefixLen = strlen(prefix); | ||
3577 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */; | ||
3578 | |||
3579 | for (i = 0; i < extraInitrdCount; i++) { | ||
3580 | totalSize += sizeof(separatorChar); | ||
3581 | totalSize += strlen(extraInitrds[i]) - prefixLen; | ||
3582 | } | ||
3583 | |||
3584 | initrdVal = end = malloc(totalSize); | ||
3585 | |||
3586 | end = stpcpy (end, newKernelInitrd + prefixLen); | ||
3587 | |||
3588 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; | ||
3589 | for (i = 0; i < extraInitrdCount; i++) { | ||
3590 | const char *extraInitrd; | ||
3591 | int j; | ||
3592 | |||
3593 | extraInitrd = extraInitrds[i] + prefixLen; | ||
3594 | /* Don't add entries that are already there */ | ||
3595 | if (tmplLine != NULL) { | ||
3596 | for (j = 2; j < tmplLine->numElements; j++) | ||
3597 | if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0) | ||
3598 | break; | ||
3599 | |||
3600 | if (j != tmplLine->numElements) | ||
3601 | continue; | ||
3602 | } | ||
3603 | |||
3604 | *end++ = separatorChar; | ||
3605 | end = stpcpy(end, extraInitrd); | ||
3606 | } | ||
3607 | |||
3608 | return initrdVal; | ||
3609 | } | ||
3610 | |||
3611 | niro | 532 | int addNewKernel(struct grubConfig * config, struct singleEntry * template, |
3612 | const char * prefix, | ||
3613 | niro | 1844 | const char * newKernelPath, const char * newKernelTitle, |
3614 | const char * newKernelArgs, const char * newKernelInitrd, | ||
3615 | const char ** extraInitrds, int extraInitrdCount, | ||
3616 | const char * newMBKernel, const char * newMBKernelArgs) { | ||
3617 | niro | 532 | struct singleEntry * new; |
3618 | niro | 914 | struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL; |
3619 | niro | 532 | int needs; |
3620 | char * chptr; | ||
3621 | |||
3622 | if (!newKernelPath) return 0; | ||
3623 | |||
3624 | /* if the newKernelTitle is too long silently munge it into something | ||
3625 | * we can live with. truncating is first check, then we'll just mess with | ||
3626 | * it until it looks better */ | ||
3627 | if (config->cfi->maxTitleLength && | ||
3628 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { | ||
3629 | char * buf = alloca(config->cfi->maxTitleLength + 7); | ||
3630 | char * numBuf = alloca(config->cfi->maxTitleLength + 1); | ||
3631 | int i = 1; | ||
3632 | |||
3633 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle); | ||
3634 | while (findEntryByPath(config, buf, NULL, NULL)) { | ||
3635 | sprintf(numBuf, "%d", i++); | ||
3636 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); | ||
3637 | } | ||
3638 | |||
3639 | newKernelTitle = buf + 6; | ||
3640 | } | ||
3641 | |||
3642 | new = malloc(sizeof(*new)); | ||
3643 | new->skip = 0; | ||
3644 | new->multiboot = 0; | ||
3645 | new->next = config->entries; | ||
3646 | new->lines = NULL; | ||
3647 | config->entries = new; | ||
3648 | |||
3649 | /* copy/update from the template */ | ||
3650 | niro | 914 | needs = NEED_KERNEL | NEED_TITLE; |
3651 | if (newKernelInitrd) | ||
3652 | needs |= NEED_INITRD; | ||
3653 | niro | 532 | if (newMBKernel) { |
3654 | niro | 914 | needs |= NEED_MB; |
3655 | niro | 532 | new->multiboot = 1; |
3656 | } | ||
3657 | |||
3658 | if (template) { | ||
3659 | niro | 914 | for (masterLine = template->lines; |
3660 | masterLine && (tmplLine = lineDup(masterLine)); | ||
3661 | lineFree(tmplLine), masterLine = masterLine->next) | ||
3662 | { | ||
3663 | dbgPrintf("addNewKernel processing %d\n", tmplLine->type); | ||
3664 | niro | 532 | |
3665 | /* skip comments */ | ||
3666 | chptr = tmplLine->indent; | ||
3667 | while (*chptr && isspace(*chptr)) chptr++; | ||
3668 | if (*chptr == '#') continue; | ||
3669 | |||
3670 | niro | 1940 | if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) { |
3671 | niro | 914 | if (!template->multiboot && (needs & NEED_MB)) { |
3672 | /* it's not a multiboot template and this is the kernel | ||
3673 | * line. Try to be intelligent about inserting the | ||
3674 | * hypervisor at the same time. | ||
3675 | */ | ||
3676 | if (config->cfi->mbHyperFirst) { | ||
3677 | /* insert the hypervisor first */ | ||
3678 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3679 | tmplLine->indent, | ||
3680 | newMBKernel + strlen(prefix)); | ||
3681 | /* set up for adding the kernel line */ | ||
3682 | free(tmplLine->indent); | ||
3683 | tmplLine->indent = strdup(config->secondaryIndent); | ||
3684 | needs &= ~NEED_MB; | ||
3685 | } | ||
3686 | if (needs & NEED_KERNEL) { | ||
3687 | /* use addLineTmpl to preserve line elements, | ||
3688 | * otherwise we could just call addLine. Unfortunately | ||
3689 | * this means making some changes to the template | ||
3690 | * such as the indent change above and the type | ||
3691 | * change below. | ||
3692 | */ | ||
3693 | struct keywordTypes * mbm_kw = | ||
3694 | getKeywordByType(LT_MBMODULE, config->cfi); | ||
3695 | if (mbm_kw) { | ||
3696 | tmplLine->type = LT_MBMODULE; | ||
3697 | free(tmplLine->elements[0].item); | ||
3698 | tmplLine->elements[0].item = strdup(mbm_kw->key); | ||
3699 | } | ||
3700 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3701 | newKernelPath + strlen(prefix), config->cfi); | ||
3702 | needs &= ~NEED_KERNEL; | ||
3703 | } | ||
3704 | if (needs & NEED_MB) { /* !mbHyperFirst */ | ||
3705 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3706 | config->secondaryIndent, | ||
3707 | newMBKernel + strlen(prefix)); | ||
3708 | needs &= ~NEED_MB; | ||
3709 | } | ||
3710 | } else if (needs & NEED_KERNEL) { | ||
3711 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3712 | newKernelPath + strlen(prefix), config->cfi); | ||
3713 | needs &= ~NEED_KERNEL; | ||
3714 | } | ||
3715 | niro | 532 | |
3716 | niro | 914 | } else if (tmplLine->type == LT_HYPER && |
3717 | tmplLine->numElements >= 2) { | ||
3718 | if (needs & NEED_MB) { | ||
3719 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3720 | newMBKernel + strlen(prefix), config->cfi); | ||
3721 | needs &= ~NEED_MB; | ||
3722 | } | ||
3723 | niro | 532 | |
3724 | niro | 914 | } else if (tmplLine->type == LT_MBMODULE && |
3725 | tmplLine->numElements >= 2) { | ||
3726 | if (new->multiboot) { | ||
3727 | if (needs & NEED_KERNEL) { | ||
3728 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3729 | newKernelPath + | ||
3730 | strlen(prefix), config->cfi); | ||
3731 | needs &= ~NEED_KERNEL; | ||
3732 | } else if (config->cfi->mbInitRdIsModule && | ||
3733 | (needs & NEED_INITRD)) { | ||
3734 | char *initrdVal; | ||
3735 | initrdVal = getInitrdVal(config, prefix, tmplLine, | ||
3736 | newKernelInitrd, extraInitrds, | ||
3737 | extraInitrdCount); | ||
3738 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3739 | initrdVal, config->cfi); | ||
3740 | free(initrdVal); | ||
3741 | needs &= ~NEED_INITRD; | ||
3742 | } | ||
3743 | } else if (needs & NEED_KERNEL) { | ||
3744 | /* template is multi but new is not, | ||
3745 | * insert the kernel in the first module slot | ||
3746 | */ | ||
3747 | niro | 1940 | tmplLine->type = preferredLineType(LT_KERNEL, config->cfi); |
3748 | niro | 914 | free(tmplLine->elements[0].item); |
3749 | tmplLine->elements[0].item = | ||
3750 | niro | 1940 | strdup(getKeywordByType(tmplLine->type, |
3751 | config->cfi)->key); | ||
3752 | niro | 914 | newLine = addLineTmpl(new, tmplLine, newLine, |
3753 | niro | 1940 | newKernelPath + strlen(prefix), |
3754 | config->cfi); | ||
3755 | niro | 914 | needs &= ~NEED_KERNEL; |
3756 | } else if (needs & NEED_INITRD) { | ||
3757 | char *initrdVal; | ||
3758 | /* template is multi but new is not, | ||
3759 | * insert the initrd in the second module slot | ||
3760 | */ | ||
3761 | niro | 1940 | tmplLine->type = preferredLineType(LT_INITRD, config->cfi); |
3762 | niro | 914 | free(tmplLine->elements[0].item); |
3763 | tmplLine->elements[0].item = | ||
3764 | niro | 1940 | strdup(getKeywordByType(tmplLine->type, |
3765 | config->cfi)->key); | ||
3766 | niro | 914 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); |
3767 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
3768 | free(initrdVal); | ||
3769 | needs &= ~NEED_INITRD; | ||
3770 | } | ||
3771 | niro | 532 | |
3772 | niro | 1940 | } else if (isinitrd(tmplLine->type) && tmplLine->numElements >= 2) { |
3773 | niro | 914 | if (needs & NEED_INITRD && |
3774 | new->multiboot && !template->multiboot && | ||
3775 | config->cfi->mbInitRdIsModule) { | ||
3776 | /* make sure we don't insert the module initrd | ||
3777 | * before the module kernel... if we don't do it here, | ||
3778 | * it will be inserted following the template. | ||
3779 | */ | ||
3780 | if (!needs & NEED_KERNEL) { | ||
3781 | char *initrdVal; | ||
3782 | |||
3783 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3784 | newLine = addLine(new, config->cfi, LT_MBMODULE, | ||
3785 | config->secondaryIndent, | ||
3786 | initrdVal); | ||
3787 | free(initrdVal); | ||
3788 | needs &= ~NEED_INITRD; | ||
3789 | } | ||
3790 | } else if (needs & NEED_INITRD) { | ||
3791 | char *initrdVal; | ||
3792 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3793 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
3794 | free(initrdVal); | ||
3795 | needs &= ~NEED_INITRD; | ||
3796 | niro | 532 | } |
3797 | |||
3798 | niro | 1696 | } else if (tmplLine->type == LT_MENUENTRY && |
3799 | (needs & NEED_TITLE)) { | ||
3800 | requote(tmplLine, config->cfi); | ||
3801 | char *nkt = malloc(strlen(newKernelTitle)+3); | ||
3802 | strcpy(nkt, "'"); | ||
3803 | strcat(nkt, newKernelTitle); | ||
3804 | strcat(nkt, "'"); | ||
3805 | newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi); | ||
3806 | free(nkt); | ||
3807 | needs &= ~NEED_TITLE; | ||
3808 | niro | 532 | } else if (tmplLine->type == LT_TITLE && |
3809 | niro | 914 | (needs & NEED_TITLE)) { |
3810 | if (tmplLine->numElements >= 2) { | ||
3811 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3812 | newKernelTitle, config->cfi); | ||
3813 | needs &= ~NEED_TITLE; | ||
3814 | } else if (tmplLine->numElements == 1 && | ||
3815 | config->cfi->titleBracketed) { | ||
3816 | /* addLineTmpl doesn't handle titleBracketed */ | ||
3817 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3818 | tmplLine->indent, newKernelTitle); | ||
3819 | needs &= ~NEED_TITLE; | ||
3820 | } | ||
3821 | niro | 1696 | } else if (tmplLine->type == LT_ECHO) { |
3822 | requote(tmplLine, config->cfi); | ||
3823 | niro | 1722 | static const char *prefix = "'Loading "; |
3824 | niro | 1696 | if (tmplLine->numElements > 1 && |
3825 | niro | 1722 | strstr(tmplLine->elements[1].item, prefix) && |
3826 | niro | 1940 | masterLine->next && |
3827 | iskernel(masterLine->next->type)) { | ||
3828 | niro | 1696 | char *newTitle = malloc(strlen(prefix) + |
3829 | strlen(newKernelTitle) + 2); | ||
3830 | niro | 532 | |
3831 | niro | 1696 | strcpy(newTitle, prefix); |
3832 | strcat(newTitle, newKernelTitle); | ||
3833 | strcat(newTitle, "'"); | ||
3834 | newLine = addLine(new, config->cfi, LT_ECHO, | ||
3835 | tmplLine->indent, newTitle); | ||
3836 | free(newTitle); | ||
3837 | } else { | ||
3838 | /* pass through other lines from the template */ | ||
3839 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, | ||
3840 | config->cfi); | ||
3841 | } | ||
3842 | niro | 914 | } else { |
3843 | /* pass through other lines from the template */ | ||
3844 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi); | ||
3845 | } | ||
3846 | niro | 532 | } |
3847 | niro | 914 | |
3848 | niro | 532 | } else { |
3849 | niro | 914 | /* don't have a template, so start the entry with the |
3850 | * appropriate starting line | ||
3851 | */ | ||
3852 | niro | 1693 | switch (config->cfi->entryStart) { |
3853 | niro | 914 | case LT_KERNEL: |
3854 | niro | 1940 | case LT_KERNEL_EFI: |
3855 | niro | 914 | if (new->multiboot && config->cfi->mbHyperFirst) { |
3856 | /* fall through to LT_HYPER */ | ||
3857 | } else { | ||
3858 | niro | 1940 | newLine = addLine(new, config->cfi, |
3859 | preferredLineType(LT_KERNEL, config->cfi), | ||
3860 | niro | 914 | config->primaryIndent, |
3861 | newKernelPath + strlen(prefix)); | ||
3862 | needs &= ~NEED_KERNEL; | ||
3863 | break; | ||
3864 | } | ||
3865 | |||
3866 | case LT_HYPER: | ||
3867 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3868 | config->primaryIndent, | ||
3869 | newMBKernel + strlen(prefix)); | ||
3870 | needs &= ~NEED_MB; | ||
3871 | niro | 532 | break; |
3872 | |||
3873 | niro | 1696 | case LT_MENUENTRY: { |
3874 | char *nkt = malloc(strlen(newKernelTitle)+3); | ||
3875 | strcpy(nkt, "'"); | ||
3876 | strcat(nkt, newKernelTitle); | ||
3877 | strcat(nkt, "'"); | ||
3878 | newLine = addLine(new, config->cfi, LT_MENUENTRY, | ||
3879 | config->primaryIndent, nkt); | ||
3880 | free(nkt); | ||
3881 | needs &= ~NEED_TITLE; | ||
3882 | needs |= NEED_END; | ||
3883 | break; | ||
3884 | } | ||
3885 | niro | 914 | case LT_TITLE: |
3886 | if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above) | ||
3887 | char * templabel; | ||
3888 | int x = 0, y = 0; | ||
3889 | |||
3890 | templabel = strdup(newKernelTitle); | ||
3891 | while( templabel[x]){ | ||
3892 | if( templabel[x] == ' ' ){ | ||
3893 | y = x; | ||
3894 | while( templabel[y] ){ | ||
3895 | templabel[y] = templabel[y+1]; | ||
3896 | y++; | ||
3897 | } | ||
3898 | } | ||
3899 | x++; | ||
3900 | } | ||
3901 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3902 | config->primaryIndent, templabel); | ||
3903 | free(templabel); | ||
3904 | }else{ | ||
3905 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3906 | config->primaryIndent, newKernelTitle); | ||
3907 | } | ||
3908 | needs &= ~NEED_TITLE; | ||
3909 | break; | ||
3910 | |||
3911 | default: | ||
3912 | abort(); | ||
3913 | niro | 532 | } |
3914 | } | ||
3915 | |||
3916 | niro | 914 | /* add the remainder of the lines, i.e. those that either |
3917 | * weren't present in the template, or in the case of no template, | ||
3918 | niro | 1693 | * all the lines following the entryStart. |
3919 | niro | 914 | */ |
3920 | if (needs & NEED_TITLE) { | ||
3921 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
3922 | config->secondaryIndent, | ||
3923 | newKernelTitle); | ||
3924 | needs &= ~NEED_TITLE; | ||
3925 | niro | 532 | } |
3926 | niro | 914 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
3927 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3928 | config->secondaryIndent, | ||
3929 | newMBKernel + strlen(prefix)); | ||
3930 | needs &= ~NEED_MB; | ||
3931 | } | ||
3932 | if (needs & NEED_KERNEL) { | ||
3933 | newLine = addLine(new, config->cfi, | ||
3934 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
3935 | niro | 1940 | config->cfi)) |
3936 | ? LT_MBMODULE | ||
3937 | : preferredLineType(LT_KERNEL, config->cfi), | ||
3938 | niro | 914 | config->secondaryIndent, |
3939 | newKernelPath + strlen(prefix)); | ||
3940 | needs &= ~NEED_KERNEL; | ||
3941 | } | ||
3942 | if (needs & NEED_MB) { | ||
3943 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3944 | config->secondaryIndent, | ||
3945 | newMBKernel + strlen(prefix)); | ||
3946 | needs &= ~NEED_MB; | ||
3947 | } | ||
3948 | if (needs & NEED_INITRD) { | ||
3949 | char *initrdVal; | ||
3950 | initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3951 | newLine = addLine(new, config->cfi, | ||
3952 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
3953 | niro | 1940 | config->cfi)) |
3954 | ? LT_MBMODULE | ||
3955 | : preferredLineType(LT_INITRD, config->cfi), | ||
3956 | niro | 914 | config->secondaryIndent, |
3957 | initrdVal); | ||
3958 | free(initrdVal); | ||
3959 | needs &= ~NEED_INITRD; | ||
3960 | } | ||
3961 | niro | 1696 | if (needs & NEED_END) { |
3962 | newLine = addLine(new, config->cfi, LT_ENTRY_END, | ||
3963 | config->secondaryIndent, NULL); | ||
3964 | needs &= ~NEED_END; | ||
3965 | } | ||
3966 | niro | 532 | |
3967 | niro | 914 | if (needs) { |
3968 | printf(_("grubby: needs=%d, aborting\n"), needs); | ||
3969 | abort(); | ||
3970 | } | ||
3971 | |||
3972 | niro | 532 | if (updateImage(config, "0", prefix, newKernelArgs, NULL, |
3973 | newMBKernelArgs, NULL)) return 1; | ||
3974 | |||
3975 | return 0; | ||
3976 | } | ||
3977 | |||
3978 | niro | 914 | static void traceback(int signum) |
3979 | { | ||
3980 | void *array[40]; | ||
3981 | size_t size; | ||
3982 | |||
3983 | signal(SIGSEGV, SIG_DFL); | ||
3984 | memset(array, '\0', sizeof (array)); | ||
3985 | size = backtrace(array, 40); | ||
3986 | |||
3987 | niro | 2058 | fprintf(stderr, "grubby received SIGSEGV! Backtrace (%ld):\n", |
3988 | niro | 914 | (unsigned long)size); |
3989 | backtrace_symbols_fd(array, size, STDERR_FILENO); | ||
3990 | exit(1); | ||
3991 | } | ||
3992 | |||
3993 | niro | 532 | int main(int argc, const char ** argv) { |
3994 | poptContext optCon; | ||
3995 | niro | 1696 | const char * grubConfig = NULL; |
3996 | niro | 532 | char * outputFile = NULL; |
3997 | int arg = 0; | ||
3998 | int flags = 0; | ||
3999 | int badImageOkay = 0; | ||
4000 | niro | 1696 | int configureGrub2 = 0; |
4001 | niro | 532 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
4002 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; | ||
4003 | niro | 914 | int configureExtLinux = 0; |
4004 | niro | 532 | int bootloaderProbe = 0; |
4005 | niro | 914 | int extraInitrdCount = 0; |
4006 | niro | 532 | char * updateKernelPath = NULL; |
4007 | char * newKernelPath = NULL; | ||
4008 | char * removeKernelPath = NULL; | ||
4009 | char * newKernelArgs = NULL; | ||
4010 | char * newKernelInitrd = NULL; | ||
4011 | char * newKernelTitle = NULL; | ||
4012 | char * newKernelVersion = NULL; | ||
4013 | char * newMBKernel = NULL; | ||
4014 | char * newMBKernelArgs = NULL; | ||
4015 | char * removeMBKernelArgs = NULL; | ||
4016 | char * removeMBKernel = NULL; | ||
4017 | char * bootPrefix = NULL; | ||
4018 | char * defaultKernel = NULL; | ||
4019 | char * removeArgs = NULL; | ||
4020 | char * kernelInfo = NULL; | ||
4021 | niro | 914 | char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
4022 | niro | 2252 | char * envPath = NULL; |
4023 | niro | 532 | const char * chptr = NULL; |
4024 | struct configFileInfo * cfi = NULL; | ||
4025 | struct grubConfig * config; | ||
4026 | struct singleEntry * template = NULL; | ||
4027 | int copyDefault = 0, makeDefault = 0; | ||
4028 | int displayDefault = 0; | ||
4029 | niro | 1720 | int displayDefaultIndex = 0; |
4030 | niro | 1721 | int displayDefaultTitle = 0; |
4031 | niro | 1859 | int defaultIndex = -1; |
4032 | niro | 532 | struct poptOption options[] = { |
4033 | { "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, | ||
4034 | _("add an entry for the specified kernel"), _("kernel-path") }, | ||
4035 | { "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, | ||
4036 | _("add an entry for the specified multiboot kernel"), NULL }, | ||
4037 | { "args", 0, POPT_ARG_STRING, &newKernelArgs, 0, | ||
4038 | _("default arguments for the new kernel or new arguments for " | ||
4039 | "kernel being updated"), _("args") }, | ||
4040 | { "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, | ||
4041 | _("default arguments for the new multiboot kernel or " | ||
4042 | "new arguments for multiboot kernel being updated"), NULL }, | ||
4043 | { "bad-image-okay", 0, 0, &badImageOkay, 0, | ||
4044 | _("don't sanity check images in boot entries (for testing only)"), | ||
4045 | NULL }, | ||
4046 | { "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, | ||
4047 | _("filestystem which contains /boot directory (for testing only)"), | ||
4048 | _("bootfs") }, | ||
4049 | niro | 1854 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
4050 | niro | 532 | { "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
4051 | niro | 1853 | _("check which bootloader is installed on boot sector") }, |
4052 | niro | 532 | #endif |
4053 | { "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, | ||
4054 | _("path to grub config file to update (\"-\" for stdin)"), | ||
4055 | _("path") }, | ||
4056 | { "copy-default", 0, 0, ©Default, 0, | ||
4057 | _("use the default boot entry as a template for the new entry " | ||
4058 | "being added; if the default is not a linux image, or if " | ||
4059 | "the kernel referenced by the default image does not exist, " | ||
4060 | "the first linux entry whose kernel does exist is used as the " | ||
4061 | "template"), NULL }, | ||
4062 | niro | 1736 | { "debug", 0, 0, &debug, 0, |
4063 | _("print debugging information for failures") }, | ||
4064 | niro | 532 | { "default-kernel", 0, 0, &displayDefault, 0, |
4065 | _("display the path of the default kernel") }, | ||
4066 | niro | 1720 | { "default-index", 0, 0, &displayDefaultIndex, 0, |
4067 | _("display the index of the default kernel") }, | ||
4068 | niro | 1721 | { "default-title", 0, 0, &displayDefaultTitle, 0, |
4069 | _("display the title of the default kernel") }, | ||
4070 | niro | 532 | { "elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
4071 | _("configure elilo bootloader") }, | ||
4072 | niro | 1940 | { "efi", 0, POPT_ARG_NONE, &isEfi, 0, |
4073 | _("force grub2 stanzas to use efi") }, | ||
4074 | niro | 2252 | { "env", 0, POPT_ARG_STRING, &envPath, 0, |
4075 | _("path for environment data"), | ||
4076 | _("path") }, | ||
4077 | niro | 914 | { "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
4078 | _("configure extlinux bootloader (from syslinux)") }, | ||
4079 | niro | 532 | { "grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
4080 | _("configure grub bootloader") }, | ||
4081 | niro | 1696 | { "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
4082 | _("configure grub2 bootloader") }, | ||
4083 | niro | 532 | { "info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
4084 | _("display boot information for specified kernel"), | ||
4085 | _("kernel-path") }, | ||
4086 | { "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, | ||
4087 | _("initrd image for the new kernel"), _("initrd-path") }, | ||
4088 | niro | 914 | { "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
4089 | niro | 2058 | _("auxiliary initrd image for things other than the new kernel"), _("initrd-path") }, |
4090 | niro | 532 | { "lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
4091 | _("configure lilo bootloader") }, | ||
4092 | { "make-default", 0, 0, &makeDefault, 0, | ||
4093 | _("make the newly added entry the default boot entry"), NULL }, | ||
4094 | { "output-file", 'o', POPT_ARG_STRING, &outputFile, 0, | ||
4095 | _("path to output updated config file (\"-\" for stdout)"), | ||
4096 | _("path") }, | ||
4097 | { "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, | ||
4098 | _("remove kernel arguments"), NULL }, | ||
4099 | { "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, | ||
4100 | _("remove multiboot kernel arguments"), NULL }, | ||
4101 | { "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, | ||
4102 | _("remove all entries for the specified kernel"), | ||
4103 | _("kernel-path") }, | ||
4104 | { "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, | ||
4105 | _("remove all entries for the specified multiboot kernel"), NULL }, | ||
4106 | { "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, | ||
4107 | _("make the first entry referencing the specified kernel " | ||
4108 | "the default"), _("kernel-path") }, | ||
4109 | niro | 1859 | { "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, |
4110 | _("make the given entry index the default entry"), | ||
4111 | _("entry-index") }, | ||
4112 | niro | 532 | { "silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
4113 | _("configure silo bootloader") }, | ||
4114 | { "title", 0, POPT_ARG_STRING, &newKernelTitle, 0, | ||
4115 | _("title to use for the new kernel entry"), _("entry-title") }, | ||
4116 | { "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, | ||
4117 | _("updated information for the specified kernel"), | ||
4118 | _("kernel-path") }, | ||
4119 | { "version", 'v', 0, NULL, 'v', | ||
4120 | _("print the version of this program and exit"), NULL }, | ||
4121 | { "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, | ||
4122 | _("configure yaboot bootloader") }, | ||
4123 | { "zipl", 0, POPT_ARG_NONE, &configureZipl, 0, | ||
4124 | _("configure zipl bootloader") }, | ||
4125 | POPT_AUTOHELP | ||
4126 | { 0, 0, 0, 0, 0 } | ||
4127 | }; | ||
4128 | |||
4129 | niro | 914 | useextlinuxmenu=0; |
4130 | |||
4131 | signal(SIGSEGV, traceback); | ||
4132 | |||
4133 | niro | 2236 | int i = 0; |
4134 | for (int j = 1; j < argc; j++) | ||
4135 | i += strlen(argv[j]) + 1; | ||
4136 | saved_command_line = malloc(i); | ||
4137 | if (!saved_command_line) { | ||
4138 | fprintf(stderr, "grubby: %m\n"); | ||
4139 | exit(1); | ||
4140 | } | ||
4141 | saved_command_line[0] = '\0'; | ||
4142 | for (int j = 1; j < argc; j++) { | ||
4143 | strcat(saved_command_line, argv[j]); | ||
4144 | strncat(saved_command_line, j == argc -1 ? "" : " ", 1); | ||
4145 | } | ||
4146 | |||
4147 | niro | 532 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
4148 | poptReadDefaultConfig(optCon, 1); | ||
4149 | |||
4150 | while ((arg = poptGetNextOpt(optCon)) >= 0) { | ||
4151 | switch (arg) { | ||
4152 | case 'v': | ||
4153 | printf("grubby version %s\n", VERSION); | ||
4154 | exit(0); | ||
4155 | break; | ||
4156 | niro | 914 | case 'i': |
4157 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { | ||
4158 | extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon)); | ||
4159 | } else { | ||
4160 | fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount); | ||
4161 | return 1; | ||
4162 | } | ||
4163 | break; | ||
4164 | niro | 532 | } |
4165 | } | ||
4166 | |||
4167 | if (arg < -1) { | ||
4168 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), | ||
4169 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), | ||
4170 | poptStrerror(arg)); | ||
4171 | return 1; | ||
4172 | } | ||
4173 | |||
4174 | if ((chptr = poptGetArg(optCon))) { | ||
4175 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); | ||
4176 | return 1; | ||
4177 | } | ||
4178 | |||
4179 | niro | 1696 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
4180 | niro | 914 | configureYaboot + configureSilo + configureZipl + |
4181 | configureExtLinux ) > 1) { | ||
4182 | niro | 532 | fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n")); |
4183 | return 1; | ||
4184 | } else if (bootloaderProbe && grubConfig) { | ||
4185 | fprintf(stderr, | ||
4186 | _("grubby: cannot specify config file with --bootloader-probe\n")); | ||
4187 | return 1; | ||
4188 | niro | 1696 | } else if (configureGrub2) { |
4189 | cfi = &grub2ConfigType; | ||
4190 | niro | 2252 | if (envPath) |
4191 | cfi->envFile = envPath; | ||
4192 | niro | 532 | } else if (configureLilo) { |
4193 | cfi = &liloConfigType; | ||
4194 | } else if (configureGrub) { | ||
4195 | cfi = &grubConfigType; | ||
4196 | } else if (configureELilo) { | ||
4197 | cfi = &eliloConfigType; | ||
4198 | } else if (configureYaboot) { | ||
4199 | cfi = &yabootConfigType; | ||
4200 | } else if (configureSilo) { | ||
4201 | cfi = &siloConfigType; | ||
4202 | } else if (configureZipl) { | ||
4203 | cfi = &ziplConfigType; | ||
4204 | niro | 914 | } else if (configureExtLinux) { |
4205 | cfi = &extlinuxConfigType; | ||
4206 | useextlinuxmenu=1; | ||
4207 | niro | 532 | } |
4208 | |||
4209 | if (!cfi) { | ||
4210 | niro | 1802 | if (grub2FindConfig(&grub2ConfigType)) |
4211 | cfi = &grub2ConfigType; | ||
4212 | else | ||
4213 | niro | 532 | #ifdef __ia64__ |
4214 | niro | 1802 | cfi = &eliloConfigType; |
4215 | niro | 532 | #elif __powerpc__ |
4216 | niro | 1802 | cfi = &yabootConfigType; |
4217 | niro | 532 | #elif __sparc__ |
4218 | niro | 1802 | cfi = &siloConfigType; |
4219 | niro | 532 | #elif __s390__ |
4220 | niro | 1802 | cfi = &ziplConfigType; |
4221 | niro | 532 | #elif __s390x__ |
4222 | niro | 1802 | cfi = &ziplConfigtype; |
4223 | niro | 532 | #else |
4224 | niro | 1696 | cfi = &grubConfigType; |
4225 | niro | 532 | #endif |
4226 | } | ||
4227 | |||
4228 | niro | 1696 | if (!grubConfig) { |
4229 | if (cfi->findConfig) | ||
4230 | grubConfig = cfi->findConfig(cfi); | ||
4231 | if (!grubConfig) | ||
4232 | grubConfig = cfi->defaultConfig; | ||
4233 | } | ||
4234 | niro | 532 | |
4235 | if (bootloaderProbe && (displayDefault || kernelInfo || newKernelVersion || | ||
4236 | niro | 1859 | newKernelPath || removeKernelPath || makeDefault || |
4237 | defaultKernel || displayDefaultIndex || displayDefaultTitle || | ||
4238 | (defaultIndex >= 0))) { | ||
4239 | niro | 532 | fprintf(stderr, _("grubby: --bootloader-probe may not be used with " |
4240 | "specified option")); | ||
4241 | return 1; | ||
4242 | } | ||
4243 | |||
4244 | if ((displayDefault || kernelInfo) && (newKernelVersion || newKernelPath || | ||
4245 | removeKernelPath)) { | ||
4246 | fprintf(stderr, _("grubby: --default-kernel and --info may not " | ||
4247 | "be used when adding or removing kernels\n")); | ||
4248 | return 1; | ||
4249 | } | ||
4250 | |||
4251 | if (newKernelPath && !newKernelTitle) { | ||
4252 | fprintf(stderr, _("grubby: kernel title must be specified\n")); | ||
4253 | return 1; | ||
4254 | niro | 1156 | } else if (!newKernelPath && (newKernelTitle || copyDefault || |
4255 | (newKernelInitrd && !updateKernelPath)|| | ||
4256 | niro | 914 | makeDefault || extraInitrdCount > 0)) { |
4257 | niro | 532 | fprintf(stderr, _("grubby: kernel path expected\n")); |
4258 | return 1; | ||
4259 | } | ||
4260 | |||
4261 | if (newKernelPath && updateKernelPath) { | ||
4262 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" | ||
4263 | "not be used together")); | ||
4264 | return 1; | ||
4265 | } | ||
4266 | |||
4267 | if (makeDefault && defaultKernel) { | ||
4268 | fprintf(stderr, _("grubby: --make-default and --default-kernel " | ||
4269 | "may not be used together\n")); | ||
4270 | return 1; | ||
4271 | } else if (defaultKernel && removeKernelPath && | ||
4272 | !strcmp(defaultKernel, removeKernelPath)) { | ||
4273 | fprintf(stderr, _("grubby: cannot make removed kernel the default\n")); | ||
4274 | return 1; | ||
4275 | } else if (defaultKernel && newKernelPath && | ||
4276 | !strcmp(defaultKernel, newKernelPath)) { | ||
4277 | makeDefault = 1; | ||
4278 | defaultKernel = NULL; | ||
4279 | } | ||
4280 | niro | 1859 | else if (defaultKernel && (defaultIndex >= 0)) { |
4281 | fprintf(stderr, _("grubby: --set-default and --set-default-index " | ||
4282 | "may not be used together\n")); | ||
4283 | return 1; | ||
4284 | } | ||
4285 | niro | 532 | |
4286 | niro | 1717 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
4287 | niro | 532 | fprintf(stderr, _("grubby: output file must be specified if stdin " |
4288 | "is used\n")); | ||
4289 | return 1; | ||
4290 | } | ||
4291 | |||
4292 | if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel | ||
4293 | niro | 1859 | && !kernelInfo && !bootloaderProbe && !updateKernelPath |
4294 | && !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle | ||
4295 | && (defaultIndex == -1)) { | ||
4296 | niro | 532 | fprintf(stderr, _("grubby: no action specified\n")); |
4297 | return 1; | ||
4298 | } | ||
4299 | |||
4300 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; | ||
4301 | |||
4302 | if (cfi->needsBootPrefix) { | ||
4303 | if (!bootPrefix) { | ||
4304 | bootPrefix = findBootPrefix(); | ||
4305 | if (!bootPrefix) return 1; | ||
4306 | } else { | ||
4307 | /* this shouldn't end with a / */ | ||
4308 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') | ||
4309 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; | ||
4310 | } | ||
4311 | } else { | ||
4312 | bootPrefix = ""; | ||
4313 | } | ||
4314 | |||
4315 | niro | 914 | if (!cfi->mbAllowExtraInitRds && |
4316 | extraInitrdCount > 0) { | ||
4317 | fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig); | ||
4318 | return 1; | ||
4319 | } | ||
4320 | |||
4321 | niro | 532 | if (bootloaderProbe) { |
4322 | niro | 1854 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; |
4323 | struct grubConfig * lconfig, * gconfig, * yconfig, * econfig; | ||
4324 | niro | 532 | |
4325 | niro | 1696 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
4326 | if (grub2config) { | ||
4327 | gconfig = readConfig(grub2config, &grub2ConfigType); | ||
4328 | if (!gconfig) | ||
4329 | gr2c = 1; | ||
4330 | else | ||
4331 | gr2c = checkForGrub2(gconfig); | ||
4332 | } | ||
4333 | |||
4334 | niro | 1715 | const char *grubconfig = grubFindConfig(&grubConfigType); |
4335 | if (!access(grubconfig, F_OK)) { | ||
4336 | gconfig = readConfig(grubconfig, &grubConfigType); | ||
4337 | niro | 532 | if (!gconfig) |
4338 | grc = 1; | ||
4339 | else | ||
4340 | grc = checkForGrub(gconfig); | ||
4341 | } | ||
4342 | |||
4343 | if (!access(liloConfigType.defaultConfig, F_OK)) { | ||
4344 | lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType); | ||
4345 | if (!lconfig) | ||
4346 | lrc = 1; | ||
4347 | else | ||
4348 | lrc = checkForLilo(lconfig); | ||
4349 | } | ||
4350 | |||
4351 | niro | 1854 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
4352 | econfig = readConfig(eliloConfigType.defaultConfig, | ||
4353 | &eliloConfigType); | ||
4354 | if (!econfig) | ||
4355 | erc = 1; | ||
4356 | else | ||
4357 | erc = checkForElilo(econfig); | ||
4358 | } | ||
4359 | |||
4360 | niro | 914 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
4361 | lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType); | ||
4362 | if (!lconfig) | ||
4363 | niro | 1854 | extrc = 1; |
4364 | niro | 914 | else |
4365 | niro | 1854 | extrc = checkForExtLinux(lconfig); |
4366 | niro | 914 | } |
4367 | |||
4368 | niro | 532 | |
4369 | niro | 1853 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
4370 | yconfig = readConfig(yabootConfigType.defaultConfig, | ||
4371 | &yabootConfigType); | ||
4372 | if (!yconfig) | ||
4373 | yrc = 1; | ||
4374 | else | ||
4375 | niro | 1864 | yrc = checkForYaboot(yconfig); |
4376 | niro | 1853 | } |
4377 | |||
4378 | niro | 1854 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 || |
4379 | niro | 1855 | erc == 1) |
4380 | niro | 1854 | return 1; |
4381 | niro | 1853 | |
4382 | niro | 532 | if (lrc == 2) printf("lilo\n"); |
4383 | niro | 1696 | if (gr2c == 2) printf("grub2\n"); |
4384 | niro | 532 | if (grc == 2) printf("grub\n"); |
4385 | niro | 1854 | if (extrc == 2) printf("extlinux\n"); |
4386 | niro | 1853 | if (yrc == 2) printf("yaboot\n"); |
4387 | niro | 1854 | if (erc == 2) printf("elilo\n"); |
4388 | niro | 532 | |
4389 | return 0; | ||
4390 | } | ||
4391 | |||
4392 | niro | 2246 | if (grubConfig == NULL) { |
4393 | printf("Could not find bootloader configuration file.\n"); | ||
4394 | exit(1); | ||
4395 | } | ||
4396 | |||
4397 | niro | 532 | config = readConfig(grubConfig, cfi); |
4398 | if (!config) return 1; | ||
4399 | |||
4400 | if (displayDefault) { | ||
4401 | struct singleLine * line; | ||
4402 | struct singleEntry * entry; | ||
4403 | char * rootspec; | ||
4404 | |||
4405 | if (config->defaultImage == -1) return 0; | ||
4406 | niro | 2255 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
4407 | cfi->defaultIsSaved) | ||
4408 | config->defaultImage = 0; | ||
4409 | niro | 532 | entry = findEntryByIndex(config, config->defaultImage); |
4410 | if (!entry) return 0; | ||
4411 | if (!suitableImage(entry, bootPrefix, 0, flags)) return 0; | ||
4412 | |||
4413 | niro | 1940 | line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI, entry->lines); |
4414 | niro | 532 | if (!line) return 0; |
4415 | |||
4416 | rootspec = getRootSpecifier(line->elements[1].item); | ||
4417 | printf("%s%s\n", bootPrefix, line->elements[1].item + | ||
4418 | ((rootspec != NULL) ? strlen(rootspec) : 0)); | ||
4419 | |||
4420 | return 0; | ||
4421 | niro | 1720 | |
4422 | niro | 1721 | } else if (displayDefaultTitle) { |
4423 | struct singleLine * line; | ||
4424 | struct singleEntry * entry; | ||
4425 | |||
4426 | if (config->defaultImage == -1) return 0; | ||
4427 | niro | 2255 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
4428 | cfi->defaultIsSaved) | ||
4429 | config->defaultImage = 0; | ||
4430 | niro | 1721 | entry = findEntryByIndex(config, config->defaultImage); |
4431 | if (!entry) return 0; | ||
4432 | |||
4433 | if (!configureGrub2) { | ||
4434 | line = getLineByType(LT_TITLE, entry->lines); | ||
4435 | if (!line) return 0; | ||
4436 | printf("%s\n", line->elements[1].item); | ||
4437 | |||
4438 | } else { | ||
4439 | niro | 1746 | char * title; |
4440 | niro | 1721 | |
4441 | dbgPrintf("This is GRUB2, default title is embeded in menuentry\n"); | ||
4442 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
4443 | if (!line) return 0; | ||
4444 | niro | 1746 | title = grub2ExtractTitle(line); |
4445 | if (title) | ||
4446 | printf("%s\n", title); | ||
4447 | niro | 1721 | } |
4448 | return 0; | ||
4449 | |||
4450 | niro | 1720 | } else if (displayDefaultIndex) { |
4451 | if (config->defaultImage == -1) return 0; | ||
4452 | niro | 2255 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
4453 | cfi->defaultIsSaved) | ||
4454 | config->defaultImage = 0; | ||
4455 | niro | 1720 | printf("%i\n", config->defaultImage); |
4456 | niro | 2250 | return 0; |
4457 | niro | 1720 | |
4458 | niro | 532 | } else if (kernelInfo) |
4459 | return displayInfo(config, kernelInfo, bootPrefix); | ||
4460 | |||
4461 | if (copyDefault) { | ||
4462 | template = findTemplate(config, bootPrefix, NULL, 0, flags); | ||
4463 | if (!template) return 1; | ||
4464 | } | ||
4465 | |||
4466 | markRemovedImage(config, removeKernelPath, bootPrefix); | ||
4467 | markRemovedImage(config, removeMBKernel, bootPrefix); | ||
4468 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault, | ||
4469 | niro | 1859 | bootPrefix, flags, defaultIndex); |
4470 | niro | 532 | setFallbackImage(config, newKernelPath != NULL); |
4471 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, | ||
4472 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1; | ||
4473 | niro | 1156 | if (updateKernelPath && newKernelInitrd) { |
4474 | if (updateInitrd(config, updateKernelPath, bootPrefix, | ||
4475 | newKernelInitrd)) return 1; | ||
4476 | } | ||
4477 | niro | 532 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
4478 | newKernelTitle, newKernelArgs, newKernelInitrd, | ||
4479 | niro | 1844 | (const char **)extraInitrds, extraInitrdCount, |
4480 | niro | 532 | newMBKernel, newMBKernelArgs)) return 1; |
4481 | |||
4482 | |||
4483 | if (numEntries(config) == 0) { | ||
4484 | fprintf(stderr, _("grubby: doing this would leave no kernel entries. " | ||
4485 | "Not writing out new config.\n")); | ||
4486 | return 1; | ||
4487 | } | ||
4488 | |||
4489 | if (!outputFile) | ||
4490 | niro | 1696 | outputFile = (char *)grubConfig; |
4491 | niro | 532 | |
4492 | return writeConfig(config, outputFile, bootPrefix); | ||
4493 | } |