Annotation of /trunk/grubby/grubby.c
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Thu Jun 30 10:37:52 2016 UTC (8 years, 2 months ago) by niro
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Thu Jun 30 10:37:52 2016 UTC (8 years, 2 months ago) by niro
File MIME type: text/plain
File size: 131670 byte(s)
Don't leak from one extractTitle() call.
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 | 2700 | #if defined(__aarch64__) |
64 | niro | 2688 | #define isEfiOnly 1 |
65 | #else | ||
66 | #define isEfiOnly 0 | ||
67 | #endif | ||
68 | |||
69 | niro | 2236 | char *saved_command_line = NULL; |
70 | |||
71 | niro | 532 | /* comments get lumped in with indention */ |
72 | struct lineElement { | ||
73 | char * item; | ||
74 | char * indent; | ||
75 | }; | ||
76 | |||
77 | niro | 914 | enum lineType_e { |
78 | niro | 1696 | LT_WHITESPACE = 1 << 0, |
79 | LT_TITLE = 1 << 1, | ||
80 | LT_KERNEL = 1 << 2, | ||
81 | LT_INITRD = 1 << 3, | ||
82 | LT_HYPER = 1 << 4, | ||
83 | LT_DEFAULT = 1 << 5, | ||
84 | LT_MBMODULE = 1 << 6, | ||
85 | LT_ROOT = 1 << 7, | ||
86 | LT_FALLBACK = 1 << 8, | ||
87 | LT_KERNELARGS = 1 << 9, | ||
88 | LT_BOOT = 1 << 10, | ||
89 | LT_BOOTROOT = 1 << 11, | ||
90 | LT_LBA = 1 << 12, | ||
91 | LT_OTHER = 1 << 13, | ||
92 | LT_GENERIC = 1 << 14, | ||
93 | LT_ECHO = 1 << 16, | ||
94 | LT_MENUENTRY = 1 << 17, | ||
95 | LT_ENTRY_END = 1 << 18, | ||
96 | LT_SET_VARIABLE = 1 << 19, | ||
97 | niro | 1940 | LT_KERNEL_EFI = 1 << 20, |
98 | LT_INITRD_EFI = 1 << 21, | ||
99 | niro | 2683 | LT_KERNEL_16 = 1 << 22, |
100 | LT_INITRD_16 = 1 << 23, | ||
101 | niro | 2685 | LT_DEVTREE = 1 << 24, |
102 | LT_UNKNOWN = 1 << 25, | ||
103 | niro | 914 | }; |
104 | niro | 532 | |
105 | struct singleLine { | ||
106 | char * indent; | ||
107 | int numElements; | ||
108 | struct lineElement * elements; | ||
109 | struct singleLine * next; | ||
110 | enum lineType_e type; | ||
111 | }; | ||
112 | |||
113 | struct singleEntry { | ||
114 | struct singleLine * lines; | ||
115 | int skip; | ||
116 | int multiboot; | ||
117 | struct singleEntry * next; | ||
118 | }; | ||
119 | |||
120 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) | ||
121 | |||
122 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ | ||
123 | |||
124 | niro | 914 | /* These defines are (only) used in addNewKernel() */ |
125 | #define NEED_KERNEL (1 << 0) | ||
126 | #define NEED_INITRD (1 << 1) | ||
127 | #define NEED_TITLE (1 << 2) | ||
128 | #define NEED_ARGS (1 << 3) | ||
129 | #define NEED_MB (1 << 4) | ||
130 | niro | 1696 | #define NEED_END (1 << 5) |
131 | niro | 2685 | #define NEED_DEVTREE (1 << 6) |
132 | niro | 532 | |
133 | #define MAIN_DEFAULT (1 << 0) | ||
134 | #define DEFAULT_SAVED -2 | ||
135 | niro | 1748 | #define DEFAULT_SAVED_GRUB2 -3 |
136 | niro | 532 | |
137 | struct keywordTypes { | ||
138 | char * key; | ||
139 | enum lineType_e type; | ||
140 | char nextChar; | ||
141 | niro | 914 | char separatorChar; |
142 | }; | ||
143 | niro | 532 | |
144 | niro | 1696 | struct configFileInfo; |
145 | |||
146 | typedef const char *(*findConfigFunc)(struct configFileInfo *); | ||
147 | typedef const int (*writeLineFunc)(struct configFileInfo *, | ||
148 | struct singleLine *line); | ||
149 | niro | 2252 | typedef char *(*getEnvFunc)(struct configFileInfo *, char *name); |
150 | typedef int (*setEnvFunc)(struct configFileInfo *, char *name, char *value); | ||
151 | niro | 1696 | |
152 | niro | 532 | struct configFileInfo { |
153 | char * defaultConfig; | ||
154 | niro | 1696 | findConfigFunc findConfig; |
155 | writeLineFunc writeLine; | ||
156 | niro | 2252 | getEnvFunc getEnv; |
157 | setEnvFunc setEnv; | ||
158 | niro | 532 | struct keywordTypes * keywords; |
159 | niro | 2056 | int caseInsensitive; |
160 | niro | 532 | int defaultIsIndex; |
161 | niro | 1696 | int defaultIsVariable; |
162 | niro | 532 | int defaultSupportSaved; |
163 | niro | 2252 | int defaultIsSaved; |
164 | niro | 2692 | int defaultIsUnquoted; |
165 | niro | 1693 | enum lineType_e entryStart; |
166 | niro | 1696 | enum lineType_e entryEnd; |
167 | niro | 532 | int needsBootPrefix; |
168 | int argsInQuotes; | ||
169 | int maxTitleLength; | ||
170 | int titleBracketed; | ||
171 | niro | 1696 | int titlePosition; |
172 | niro | 914 | int mbHyperFirst; |
173 | int mbInitRdIsModule; | ||
174 | int mbConcatArgs; | ||
175 | int mbAllowExtraInitRds; | ||
176 | niro | 2252 | char *envFile; |
177 | niro | 532 | }; |
178 | |||
179 | struct keywordTypes grubKeywords[] = { | ||
180 | { "title", LT_TITLE, ' ' }, | ||
181 | { "root", LT_BOOTROOT, ' ' }, | ||
182 | { "default", LT_DEFAULT, ' ' }, | ||
183 | { "fallback", LT_FALLBACK, ' ' }, | ||
184 | { "kernel", LT_KERNEL, ' ' }, | ||
185 | niro | 914 | { "initrd", LT_INITRD, ' ', ' ' }, |
186 | niro | 532 | { "module", LT_MBMODULE, ' ' }, |
187 | niro | 914 | { "kernel", LT_HYPER, ' ' }, |
188 | niro | 532 | { NULL, 0, 0 }, |
189 | }; | ||
190 | |||
191 | niro | 1715 | const char *grubFindConfig(struct configFileInfo *cfi) { |
192 | static const char *configFiles[] = { | ||
193 | "/boot/grub/grub.conf", | ||
194 | "/boot/grub/menu.lst", | ||
195 | niro | 1852 | "/etc/grub.conf", |
196 | niro | 2262 | "/boot/grub2/grub.cfg", |
197 | "/boot/grub2-efi/grub.cfg", | ||
198 | niro | 1715 | NULL |
199 | }; | ||
200 | static int i = -1; | ||
201 | |||
202 | if (i == -1) { | ||
203 | for (i = 0; configFiles[i] != NULL; i++) { | ||
204 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
205 | if (!access(configFiles[i], R_OK)) { | ||
206 | dbgPrintf("found\n"); | ||
207 | return configFiles[i]; | ||
208 | } | ||
209 | dbgPrintf("not found\n"); | ||
210 | } | ||
211 | } | ||
212 | return configFiles[i]; | ||
213 | } | ||
214 | |||
215 | niro | 532 | struct configFileInfo grubConfigType = { |
216 | niro | 1715 | .findConfig = grubFindConfig, |
217 | niro | 1692 | .keywords = grubKeywords, |
218 | .defaultIsIndex = 1, | ||
219 | .defaultSupportSaved = 1, | ||
220 | niro | 1693 | .entryStart = LT_TITLE, |
221 | niro | 1692 | .needsBootPrefix = 1, |
222 | .mbHyperFirst = 1, | ||
223 | .mbInitRdIsModule = 1, | ||
224 | .mbAllowExtraInitRds = 1, | ||
225 | niro | 2980 | .titlePosition = 1, |
226 | niro | 532 | }; |
227 | |||
228 | niro | 1696 | struct keywordTypes grub2Keywords[] = { |
229 | { "menuentry", LT_MENUENTRY, ' ' }, | ||
230 | { "}", LT_ENTRY_END, ' ' }, | ||
231 | { "echo", LT_ECHO, ' ' }, | ||
232 | { "set", LT_SET_VARIABLE,' ', '=' }, | ||
233 | { "root", LT_BOOTROOT, ' ' }, | ||
234 | { "default", LT_DEFAULT, ' ' }, | ||
235 | { "fallback", LT_FALLBACK, ' ' }, | ||
236 | { "linux", LT_KERNEL, ' ' }, | ||
237 | niro | 1940 | { "linuxefi", LT_KERNEL_EFI, ' ' }, |
238 | niro | 2683 | { "linux16", LT_KERNEL_16, ' ' }, |
239 | niro | 1696 | { "initrd", LT_INITRD, ' ', ' ' }, |
240 | niro | 1940 | { "initrdefi", LT_INITRD_EFI, ' ', ' ' }, |
241 | niro | 2683 | { "initrd16", LT_INITRD_16, ' ', ' ' }, |
242 | niro | 1696 | { "module", LT_MBMODULE, ' ' }, |
243 | { "kernel", LT_HYPER, ' ' }, | ||
244 | niro | 2685 | { "devicetree", LT_DEVTREE, ' ' }, |
245 | niro | 1696 | { NULL, 0, 0 }, |
246 | }; | ||
247 | |||
248 | const char *grub2FindConfig(struct configFileInfo *cfi) { | ||
249 | static const char *configFiles[] = { | ||
250 | "/boot/grub/grub-efi.cfg", | ||
251 | "/boot/grub/grub.cfg", | ||
252 | NULL | ||
253 | }; | ||
254 | static int i = -1; | ||
255 | niro | 1714 | static const char *grub_cfg = "/boot/grub/grub.cfg"; |
256 | niro | 2246 | int rc = -1; |
257 | niro | 1696 | |
258 | if (i == -1) { | ||
259 | for (i = 0; configFiles[i] != NULL; i++) { | ||
260 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
261 | niro | 2246 | if ((rc = access(configFiles[i], R_OK))) { |
262 | if (errno == EACCES) { | ||
263 | printf("Unable to access bootloader configuration file " | ||
264 | "\"%s\": %m\n", configFiles[i]); | ||
265 | exit(1); | ||
266 | } | ||
267 | continue; | ||
268 | } else { | ||
269 | niro | 1696 | dbgPrintf("found\n"); |
270 | return configFiles[i]; | ||
271 | } | ||
272 | } | ||
273 | } | ||
274 | niro | 1714 | |
275 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory | ||
276 | * that isn't in grub1, and if it exists, return the config file path | ||
277 | * that they use. */ | ||
278 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { | ||
279 | dbgPrintf("found\n"); | ||
280 | return grub_cfg; | ||
281 | } | ||
282 | |||
283 | dbgPrintf("not found\n"); | ||
284 | niro | 1696 | return configFiles[i]; |
285 | } | ||
286 | |||
287 | niro | 2252 | /* kind of hacky. It'll give the first 1024 bytes, ish. */ |
288 | static char *grub2GetEnv(struct configFileInfo *info, char *name) | ||
289 | { | ||
290 | static char buf[1025]; | ||
291 | char *s = NULL; | ||
292 | char *ret = NULL; | ||
293 | niro | 2682 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
294 | int rc = asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name); | ||
295 | niro | 2252 | |
296 | if (rc < 0) | ||
297 | return NULL; | ||
298 | |||
299 | FILE *f = popen(s, "r"); | ||
300 | if (!f) | ||
301 | goto out; | ||
302 | |||
303 | memset(buf, '\0', sizeof (buf)); | ||
304 | ret = fgets(buf, 1024, f); | ||
305 | pclose(f); | ||
306 | |||
307 | if (ret) { | ||
308 | ret += strlen(name) + 1; | ||
309 | ret[strlen(ret) - 1] = '\0'; | ||
310 | } | ||
311 | dbgPrintf("grub2GetEnv(%s): %s\n", name, ret); | ||
312 | out: | ||
313 | free(s); | ||
314 | return ret; | ||
315 | } | ||
316 | |||
317 | niro | 2257 | static int sPopCount(const char *s, const char *c) |
318 | { | ||
319 | int ret = 0; | ||
320 | if (!s) | ||
321 | return -1; | ||
322 | for (int i = 0; s[i] != '\0'; i++) | ||
323 | for (int j = 0; c[j] != '\0'; j++) | ||
324 | if (s[i] == c[j]) | ||
325 | ret++; | ||
326 | return ret; | ||
327 | } | ||
328 | |||
329 | static char *shellEscape(const char *s) | ||
330 | { | ||
331 | int l = strlen(s) + sPopCount(s, "'") * 2; | ||
332 | |||
333 | char *ret = calloc(l+1, sizeof (*ret)); | ||
334 | if (!ret) | ||
335 | return NULL; | ||
336 | for (int i = 0, j = 0; s[i] != '\0'; i++, j++) { | ||
337 | if (s[i] == '\'') | ||
338 | ret[j++] = '\\'; | ||
339 | ret[j] = s[i]; | ||
340 | } | ||
341 | return ret; | ||
342 | } | ||
343 | |||
344 | static void unquote(char *s) | ||
345 | { | ||
346 | int l = strlen(s); | ||
347 | |||
348 | if ((s[l-1] == '\'' && s[0] == '\'') || (s[l-1] == '"' && s[0] == '"')) { | ||
349 | memmove(s, s+1, l-2); | ||
350 | s[l-2] = '\0'; | ||
351 | } | ||
352 | } | ||
353 | |||
354 | niro | 2252 | static int grub2SetEnv(struct configFileInfo *info, char *name, char *value) |
355 | { | ||
356 | char *s = NULL; | ||
357 | int rc = 0; | ||
358 | niro | 2682 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; |
359 | niro | 2252 | |
360 | niro | 2257 | unquote(value); |
361 | value = shellEscape(value); | ||
362 | if (!value) | ||
363 | return -1; | ||
364 | |||
365 | niro | 2682 | rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value); |
366 | niro | 2257 | free(value); |
367 | niro | 2252 | if (rc <0) |
368 | return -1; | ||
369 | |||
370 | dbgPrintf("grub2SetEnv(%s): %s\n", name, s); | ||
371 | rc = system(s); | ||
372 | free(s); | ||
373 | return rc; | ||
374 | } | ||
375 | |||
376 | /* this is a gigantic hack to avoid clobbering grub2 variables... */ | ||
377 | static int is_special_grub2_variable(const char *name) | ||
378 | { | ||
379 | if (!strcmp(name,"\"${next_entry}\"")) | ||
380 | return 1; | ||
381 | if (!strcmp(name,"\"${prev_saved_entry}\"")) | ||
382 | return 1; | ||
383 | return 0; | ||
384 | } | ||
385 | |||
386 | niro | 1746 | int sizeOfSingleLine(struct singleLine * line) { |
387 | int count = 0; | ||
388 | |||
389 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
390 | niro | 1746 | int indentSize = 0; |
391 | |||
392 | count = count + strlen(line->elements[i].item); | ||
393 | |||
394 | indentSize = strlen(line->elements[i].indent); | ||
395 | if (indentSize > 0) | ||
396 | count = count + indentSize; | ||
397 | else | ||
398 | /* be extra safe and add room for whitespaces */ | ||
399 | count = count + 1; | ||
400 | } | ||
401 | |||
402 | /* room for trailing terminator */ | ||
403 | count = count + 1; | ||
404 | |||
405 | return count; | ||
406 | } | ||
407 | |||
408 | niro | 1800 | static int isquote(char q) |
409 | { | ||
410 | if (q == '\'' || q == '\"') | ||
411 | return 1; | ||
412 | return 0; | ||
413 | } | ||
414 | |||
415 | niro | 1940 | static int iskernel(enum lineType_e type) { |
416 | niro | 2683 | return (type == LT_KERNEL || type == LT_KERNEL_EFI || type == LT_KERNEL_16); |
417 | niro | 1940 | } |
418 | |||
419 | static int isinitrd(enum lineType_e type) { | ||
420 | niro | 2683 | return (type == LT_INITRD || type == LT_INITRD_EFI || type == LT_INITRD_16); |
421 | niro | 1940 | } |
422 | |||
423 | niro | 1746 | char *grub2ExtractTitle(struct singleLine * line) { |
424 | char * current; | ||
425 | char * current_indent; | ||
426 | int current_len; | ||
427 | int current_indent_len; | ||
428 | int i; | ||
429 | |||
430 | /* bail out if line does not start with menuentry */ | ||
431 | if (strcmp(line->elements[0].item, "menuentry")) | ||
432 | niro | 2992 | return NULL; |
433 | niro | 1746 | |
434 | i = 1; | ||
435 | current = line->elements[i].item; | ||
436 | current_len = strlen(current); | ||
437 | |||
438 | /* if second word is quoted, strip the quotes and return single word */ | ||
439 | niro | 1800 | if (isquote(*current) && isquote(current[current_len - 1])) { |
440 | char *tmp; | ||
441 | niro | 2992 | |
442 | tmp = strdup(current+1); | ||
443 | if (!tmp) | ||
444 | return NULL; | ||
445 | tmp[strlen(tmp)-1] = '\0'; | ||
446 | return tmp; | ||
447 | niro | 1746 | } |
448 | |||
449 | /* if no quotes, return second word verbatim */ | ||
450 | niro | 1800 | if (!isquote(*current)) |
451 | return current; | ||
452 | niro | 1746 | |
453 | /* second element start with a quote, so we have to find the element | ||
454 | * whose last character is also quote (assuming it's the closing one) */ | ||
455 | niro | 1800 | int resultMaxSize; |
456 | char * result; | ||
457 | niro | 2989 | /* need to ensure that ' does not match " as we search */ |
458 | char quote_char = *current; | ||
459 | niro | 2992 | |
460 | niro | 1800 | resultMaxSize = sizeOfSingleLine(line); |
461 | result = malloc(resultMaxSize); | ||
462 | snprintf(result, resultMaxSize, "%s", ++current); | ||
463 | niro | 2992 | |
464 | niro | 1800 | i++; |
465 | for (; i < line->numElements; ++i) { | ||
466 | niro | 1746 | current = line->elements[i].item; |
467 | current_len = strlen(current); | ||
468 | current_indent = line->elements[i].indent; | ||
469 | current_indent_len = strlen(current_indent); | ||
470 | |||
471 | strncat(result, current_indent, current_indent_len); | ||
472 | niro | 2989 | if (current[current_len-1] != quote_char) { |
473 | niro | 1800 | strncat(result, current, current_len); |
474 | niro | 1746 | } else { |
475 | niro | 1800 | strncat(result, current, current_len - 1); |
476 | break; | ||
477 | niro | 1746 | } |
478 | } | ||
479 | niro | 1800 | return result; |
480 | niro | 1746 | } |
481 | |||
482 | niro | 1696 | struct configFileInfo grub2ConfigType = { |
483 | .findConfig = grub2FindConfig, | ||
484 | niro | 2252 | .getEnv = grub2GetEnv, |
485 | .setEnv = grub2SetEnv, | ||
486 | niro | 1696 | .keywords = grub2Keywords, |
487 | .defaultIsIndex = 1, | ||
488 | niro | 1748 | .defaultSupportSaved = 1, |
489 | niro | 1696 | .defaultIsVariable = 1, |
490 | .entryStart = LT_MENUENTRY, | ||
491 | .entryEnd = LT_ENTRY_END, | ||
492 | .titlePosition = 1, | ||
493 | .needsBootPrefix = 1, | ||
494 | .mbHyperFirst = 1, | ||
495 | .mbInitRdIsModule = 1, | ||
496 | .mbAllowExtraInitRds = 1, | ||
497 | }; | ||
498 | |||
499 | niro | 532 | struct keywordTypes yabootKeywords[] = { |
500 | { "label", LT_TITLE, '=' }, | ||
501 | { "root", LT_ROOT, '=' }, | ||
502 | { "default", LT_DEFAULT, '=' }, | ||
503 | { "image", LT_KERNEL, '=' }, | ||
504 | { "bsd", LT_GENERIC, '=' }, | ||
505 | { "macos", LT_GENERIC, '=' }, | ||
506 | { "macosx", LT_GENERIC, '=' }, | ||
507 | { "magicboot", LT_GENERIC, '=' }, | ||
508 | { "darwin", LT_GENERIC, '=' }, | ||
509 | { "timeout", LT_GENERIC, '=' }, | ||
510 | { "install", LT_GENERIC, '=' }, | ||
511 | { "fstype", LT_GENERIC, '=' }, | ||
512 | { "hfstype", LT_GENERIC, '=' }, | ||
513 | { "delay", LT_GENERIC, '=' }, | ||
514 | { "defaultos", LT_GENERIC, '=' }, | ||
515 | { "init-message", LT_GENERIC, '=' }, | ||
516 | { "enablecdboot", LT_GENERIC, ' ' }, | ||
517 | { "enableofboot", LT_GENERIC, ' ' }, | ||
518 | { "enablenetboot", LT_GENERIC, ' ' }, | ||
519 | { "nonvram", LT_GENERIC, ' ' }, | ||
520 | { "hide", LT_GENERIC, ' ' }, | ||
521 | { "protect", LT_GENERIC, ' ' }, | ||
522 | { "nobless", LT_GENERIC, ' ' }, | ||
523 | { "nonvram", LT_GENERIC, ' ' }, | ||
524 | { "brokenosx", LT_GENERIC, ' ' }, | ||
525 | { "usemount", LT_GENERIC, ' ' }, | ||
526 | { "mntpoint", LT_GENERIC, '=' }, | ||
527 | { "partition", LT_GENERIC, '=' }, | ||
528 | { "device", LT_GENERIC, '=' }, | ||
529 | { "fstype", LT_GENERIC, '=' }, | ||
530 | niro | 914 | { "initrd", LT_INITRD, '=', ';' }, |
531 | niro | 532 | { "append", LT_KERNELARGS, '=' }, |
532 | { "boot", LT_BOOT, '=' }, | ||
533 | { "lba", LT_LBA, ' ' }, | ||
534 | { NULL, 0, 0 }, | ||
535 | }; | ||
536 | |||
537 | struct keywordTypes liloKeywords[] = { | ||
538 | { "label", LT_TITLE, '=' }, | ||
539 | { "root", LT_ROOT, '=' }, | ||
540 | { "default", LT_DEFAULT, '=' }, | ||
541 | { "image", LT_KERNEL, '=' }, | ||
542 | { "other", LT_OTHER, '=' }, | ||
543 | { "initrd", LT_INITRD, '=' }, | ||
544 | { "append", LT_KERNELARGS, '=' }, | ||
545 | { "boot", LT_BOOT, '=' }, | ||
546 | { "lba", LT_LBA, ' ' }, | ||
547 | { NULL, 0, 0 }, | ||
548 | }; | ||
549 | |||
550 | niro | 914 | struct keywordTypes eliloKeywords[] = { |
551 | { "label", LT_TITLE, '=' }, | ||
552 | { "root", LT_ROOT, '=' }, | ||
553 | { "default", LT_DEFAULT, '=' }, | ||
554 | { "image", LT_KERNEL, '=' }, | ||
555 | { "initrd", LT_INITRD, '=' }, | ||
556 | { "append", LT_KERNELARGS, '=' }, | ||
557 | { "vmm", LT_HYPER, '=' }, | ||
558 | { NULL, 0, 0 }, | ||
559 | }; | ||
560 | |||
561 | niro | 532 | struct keywordTypes siloKeywords[] = { |
562 | { "label", LT_TITLE, '=' }, | ||
563 | { "root", LT_ROOT, '=' }, | ||
564 | { "default", LT_DEFAULT, '=' }, | ||
565 | { "image", LT_KERNEL, '=' }, | ||
566 | { "other", LT_OTHER, '=' }, | ||
567 | { "initrd", LT_INITRD, '=' }, | ||
568 | { "append", LT_KERNELARGS, '=' }, | ||
569 | { "boot", LT_BOOT, '=' }, | ||
570 | { NULL, 0, 0 }, | ||
571 | }; | ||
572 | |||
573 | struct keywordTypes ziplKeywords[] = { | ||
574 | { "target", LT_BOOTROOT, '=' }, | ||
575 | { "image", LT_KERNEL, '=' }, | ||
576 | { "ramdisk", LT_INITRD, '=' }, | ||
577 | { "parameters", LT_KERNELARGS, '=' }, | ||
578 | { "default", LT_DEFAULT, '=' }, | ||
579 | { NULL, 0, 0 }, | ||
580 | }; | ||
581 | |||
582 | niro | 914 | struct keywordTypes extlinuxKeywords[] = { |
583 | { "label", LT_TITLE, ' ' }, | ||
584 | { "root", LT_ROOT, ' ' }, | ||
585 | { "default", LT_DEFAULT, ' ' }, | ||
586 | { "kernel", LT_KERNEL, ' ' }, | ||
587 | { "initrd", LT_INITRD, ' ', ',' }, | ||
588 | { "append", LT_KERNELARGS, ' ' }, | ||
589 | { "prompt", LT_UNKNOWN, ' ' }, | ||
590 | niro | 2971 | { "fdt", LT_DEVTREE, ' ' }, |
591 | niro | 2972 | { "fdtdir", LT_DEVTREE, ' ' }, |
592 | niro | 914 | { NULL, 0, 0 }, |
593 | }; | ||
594 | int useextlinuxmenu; | ||
595 | niro | 532 | struct configFileInfo eliloConfigType = { |
596 | niro | 1692 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
597 | .keywords = eliloKeywords, | ||
598 | niro | 1693 | .entryStart = LT_KERNEL, |
599 | niro | 1692 | .needsBootPrefix = 1, |
600 | .argsInQuotes = 1, | ||
601 | .mbConcatArgs = 1, | ||
602 | niro | 2980 | .titlePosition = 1, |
603 | niro | 532 | }; |
604 | |||
605 | struct configFileInfo liloConfigType = { | ||
606 | niro | 1692 | .defaultConfig = "/etc/lilo.conf", |
607 | .keywords = liloKeywords, | ||
608 | niro | 1693 | .entryStart = LT_KERNEL, |
609 | niro | 1692 | .argsInQuotes = 1, |
610 | .maxTitleLength = 15, | ||
611 | niro | 2980 | .titlePosition = 1, |
612 | niro | 532 | }; |
613 | |||
614 | struct configFileInfo yabootConfigType = { | ||
615 | niro | 1692 | .defaultConfig = "/etc/yaboot.conf", |
616 | .keywords = yabootKeywords, | ||
617 | niro | 1693 | .entryStart = LT_KERNEL, |
618 | niro | 1692 | .needsBootPrefix = 1, |
619 | .argsInQuotes = 1, | ||
620 | .maxTitleLength = 15, | ||
621 | .mbAllowExtraInitRds = 1, | ||
622 | niro | 2980 | .titlePosition = 1, |
623 | niro | 532 | }; |
624 | |||
625 | struct configFileInfo siloConfigType = { | ||
626 | niro | 1692 | .defaultConfig = "/etc/silo.conf", |
627 | .keywords = siloKeywords, | ||
628 | niro | 1693 | .entryStart = LT_KERNEL, |
629 | niro | 1692 | .needsBootPrefix = 1, |
630 | .argsInQuotes = 1, | ||
631 | .maxTitleLength = 15, | ||
632 | niro | 2980 | .titlePosition = 1, |
633 | niro | 532 | }; |
634 | |||
635 | struct configFileInfo ziplConfigType = { | ||
636 | niro | 1692 | .defaultConfig = "/etc/zipl.conf", |
637 | .keywords = ziplKeywords, | ||
638 | niro | 1693 | .entryStart = LT_TITLE, |
639 | niro | 1692 | .argsInQuotes = 1, |
640 | .titleBracketed = 1, | ||
641 | niro | 532 | }; |
642 | |||
643 | niro | 914 | struct configFileInfo extlinuxConfigType = { |
644 | niro | 1692 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
645 | .keywords = extlinuxKeywords, | ||
646 | niro | 2056 | .caseInsensitive = 1, |
647 | niro | 1693 | .entryStart = LT_TITLE, |
648 | niro | 1692 | .needsBootPrefix = 1, |
649 | .maxTitleLength = 255, | ||
650 | .mbAllowExtraInitRds = 1, | ||
651 | niro | 2692 | .defaultIsUnquoted = 1, |
652 | niro | 2980 | .titlePosition = 1, |
653 | niro | 914 | }; |
654 | |||
655 | niro | 532 | struct grubConfig { |
656 | struct singleLine * theLines; | ||
657 | struct singleEntry * entries; | ||
658 | char * primaryIndent; | ||
659 | char * secondaryIndent; | ||
660 | int defaultImage; /* -1 if none specified -- this value is | ||
661 | * written out, overriding original */ | ||
662 | int fallbackImage; /* just like defaultImage */ | ||
663 | int flags; | ||
664 | struct configFileInfo * cfi; | ||
665 | }; | ||
666 | |||
667 | niro | 1156 | blkid_cache blkid; |
668 | |||
669 | niro | 532 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index); |
670 | struct singleEntry * findEntryByPath(struct grubConfig * cfg, | ||
671 | const char * path, const char * prefix, | ||
672 | int * index); | ||
673 | niro | 2252 | struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title, |
674 | int * index); | ||
675 | niro | 532 | static int readFile(int fd, char ** bufPtr); |
676 | static void lineInit(struct singleLine * line); | ||
677 | niro | 914 | struct singleLine * lineDup(struct singleLine * line); |
678 | niro | 532 | static void lineFree(struct singleLine * line); |
679 | static int lineWrite(FILE * out, struct singleLine * line, | ||
680 | struct configFileInfo * cfi); | ||
681 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
682 | struct configFileInfo * cfi); | ||
683 | static char * getRootSpecifier(char * str); | ||
684 | niro | 1696 | static void requote(struct singleLine *line, struct configFileInfo * cfi); |
685 | niro | 914 | static void insertElement(struct singleLine * line, |
686 | const char * item, int insertHere, | ||
687 | struct configFileInfo * cfi); | ||
688 | static void removeElement(struct singleLine * line, int removeHere); | ||
689 | static struct keywordTypes * getKeywordByType(enum lineType_e type, | ||
690 | struct configFileInfo * cfi); | ||
691 | static enum lineType_e getTypeByKeyword(char * keyword, | ||
692 | struct configFileInfo * cfi); | ||
693 | static struct singleLine * getLineByType(enum lineType_e type, | ||
694 | struct singleLine * line); | ||
695 | static int checkForExtLinux(struct grubConfig * config); | ||
696 | struct singleLine * addLineTmpl(struct singleEntry * entry, | ||
697 | struct singleLine * tmplLine, | ||
698 | struct singleLine * prevLine, | ||
699 | const char * val, | ||
700 | struct configFileInfo * cfi); | ||
701 | struct singleLine * addLine(struct singleEntry * entry, | ||
702 | struct configFileInfo * cfi, | ||
703 | enum lineType_e type, char * defaultIndent, | ||
704 | const char * val); | ||
705 | niro | 532 | |
706 | static char * sdupprintf(const char *format, ...) | ||
707 | #ifdef __GNUC__ | ||
708 | __attribute__ ((format (printf, 1, 2))); | ||
709 | #else | ||
710 | ; | ||
711 | #endif | ||
712 | |||
713 | static char * sdupprintf(const char *format, ...) { | ||
714 | char *buf = NULL; | ||
715 | char c; | ||
716 | va_list args; | ||
717 | size_t size = 0; | ||
718 | va_start(args, format); | ||
719 | |||
720 | /* XXX requires C99 vsnprintf behavior */ | ||
721 | size = vsnprintf(&c, 1, format, args) + 1; | ||
722 | if (size == -1) { | ||
723 | printf("ERROR: vsnprintf behavior is not C99\n"); | ||
724 | abort(); | ||
725 | } | ||
726 | |||
727 | va_end(args); | ||
728 | va_start(args, format); | ||
729 | |||
730 | buf = malloc(size); | ||
731 | if (buf == NULL) | ||
732 | return NULL; | ||
733 | vsnprintf(buf, size, format, args); | ||
734 | va_end (args); | ||
735 | |||
736 | return buf; | ||
737 | } | ||
738 | |||
739 | niro | 1940 | static enum lineType_e preferredLineType(enum lineType_e type, |
740 | struct configFileInfo *cfi) { | ||
741 | if (isEfi && cfi == &grub2ConfigType) { | ||
742 | switch (type) { | ||
743 | case LT_KERNEL: | ||
744 | niro | 2688 | return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI; |
745 | niro | 2687 | case LT_INITRD: |
746 | niro | 2688 | return isEfiOnly ? LT_INITRD : LT_INITRD_EFI; |
747 | niro | 1940 | default: |
748 | return type; | ||
749 | } | ||
750 | niro | 2683 | #if defined(__i386__) || defined(__x86_64__) |
751 | } else if (cfi == &grub2ConfigType) { | ||
752 | switch (type) { | ||
753 | case LT_KERNEL: | ||
754 | return LT_KERNEL_16; | ||
755 | case LT_INITRD: | ||
756 | return LT_INITRD_16; | ||
757 | default: | ||
758 | return type; | ||
759 | } | ||
760 | #endif | ||
761 | niro | 1940 | } |
762 | return type; | ||
763 | } | ||
764 | |||
765 | niro | 914 | static struct keywordTypes * getKeywordByType(enum lineType_e type, |
766 | struct configFileInfo * cfi) { | ||
767 | niro | 1846 | for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) { |
768 | niro | 914 | if (kw->type == type) |
769 | return kw; | ||
770 | } | ||
771 | return NULL; | ||
772 | } | ||
773 | |||
774 | niro | 1696 | static char *getKeyByType(enum lineType_e type, struct configFileInfo * cfi) { |
775 | struct keywordTypes *kt = getKeywordByType(type, cfi); | ||
776 | if (kt) | ||
777 | return kt->key; | ||
778 | return "unknown"; | ||
779 | } | ||
780 | |||
781 | niro | 914 | static char * getpathbyspec(char *device) { |
782 | if (!blkid) | ||
783 | blkid_get_cache(&blkid, NULL); | ||
784 | |||
785 | return blkid_get_devname(blkid, device, NULL); | ||
786 | } | ||
787 | |||
788 | niro | 1156 | static char * getuuidbydev(char *device) { |
789 | if (!blkid) | ||
790 | blkid_get_cache(&blkid, NULL); | ||
791 | |||
792 | return blkid_get_tag_value(blkid, "UUID", device); | ||
793 | } | ||
794 | |||
795 | niro | 914 | static enum lineType_e getTypeByKeyword(char * keyword, |
796 | struct configFileInfo * cfi) { | ||
797 | niro | 1846 | for (struct keywordTypes *kw = cfi->keywords; kw->key; kw++) { |
798 | niro | 2056 | if (cfi->caseInsensitive) { |
799 | if (!strcasecmp(keyword, kw->key)) | ||
800 | return kw->type; | ||
801 | } else { | ||
802 | if (!strcmp(keyword, kw->key)) | ||
803 | return kw->type; | ||
804 | } | ||
805 | niro | 914 | } |
806 | return LT_UNKNOWN; | ||
807 | } | ||
808 | |||
809 | static struct singleLine * getLineByType(enum lineType_e type, | ||
810 | struct singleLine * line) { | ||
811 | dbgPrintf("getLineByType(%d): ", type); | ||
812 | for (; line; line = line->next) { | ||
813 | dbgPrintf("%d:%s ", line->type, | ||
814 | line->numElements ? line->elements[0].item : "(empty)"); | ||
815 | if (line->type & type) break; | ||
816 | } | ||
817 | dbgPrintf(line ? "\n" : " (failed)\n"); | ||
818 | return line; | ||
819 | } | ||
820 | |||
821 | niro | 532 | static int isBracketedTitle(struct singleLine * line) { |
822 | niro | 914 | if (line->numElements == 1 && *line->elements[0].item == '[') { |
823 | niro | 532 | int len = strlen(line->elements[0].item); |
824 | if (*(line->elements[0].item + len - 1) == ']') { | ||
825 | /* FIXME: this is a hack... */ | ||
826 | if (strcmp(line->elements[0].item, "[defaultboot]")) { | ||
827 | return 1; | ||
828 | } | ||
829 | } | ||
830 | } | ||
831 | return 0; | ||
832 | } | ||
833 | |||
834 | niro | 1693 | static int isEntryStart(struct singleLine * line, |
835 | niro | 532 | struct configFileInfo * cfi) { |
836 | niro | 1693 | return line->type == cfi->entryStart || line->type == LT_OTHER || |
837 | niro | 914 | (cfi->titleBracketed && isBracketedTitle(line)); |
838 | niro | 532 | } |
839 | |||
840 | /* extract the title from within brackets (for zipl) */ | ||
841 | niro | 2980 | static char * extractTitle(struct grubConfig *cfg, struct singleLine * line) { |
842 | niro | 2977 | /* bracketed title... let's extract it */ |
843 | niro | 2252 | char * title = NULL; |
844 | if (line->type == LT_TITLE) { | ||
845 | niro | 2980 | char *tmp = line->elements[cfg->cfi->titlePosition].item; |
846 | if (cfg->cfi->titleBracketed) { | ||
847 | tmp++; | ||
848 | title = strdup(tmp); | ||
849 | *(title + strlen(title) - 1) = '\0'; | ||
850 | } else { | ||
851 | title = strdup(tmp); | ||
852 | } | ||
853 | niro | 2252 | } else if (line->type == LT_MENUENTRY) |
854 | title = strdup(line->elements[1].item); | ||
855 | else | ||
856 | return NULL; | ||
857 | niro | 532 | return title; |
858 | } | ||
859 | |||
860 | static int readFile(int fd, char ** bufPtr) { | ||
861 | int alloced = 0, size = 0, i = 0; | ||
862 | char * buf = NULL; | ||
863 | |||
864 | do { | ||
865 | size += i; | ||
866 | if ((size + 1024) > alloced) { | ||
867 | alloced += 4096; | ||
868 | buf = realloc(buf, alloced + 1); | ||
869 | } | ||
870 | } while ((i = read(fd, buf + size, 1024)) > 0); | ||
871 | |||
872 | if (i < 0) { | ||
873 | fprintf(stderr, _("error reading input: %s\n"), strerror(errno)); | ||
874 | free(buf); | ||
875 | return 1; | ||
876 | } | ||
877 | |||
878 | buf = realloc(buf, size + 2); | ||
879 | if (size == 0) | ||
880 | buf[size++] = '\n'; | ||
881 | else | ||
882 | if (buf[size - 1] != '\n') | ||
883 | buf[size++] = '\n'; | ||
884 | buf[size] = '\0'; | ||
885 | |||
886 | *bufPtr = buf; | ||
887 | |||
888 | return 0; | ||
889 | } | ||
890 | |||
891 | static void lineInit(struct singleLine * line) { | ||
892 | line->indent = NULL; | ||
893 | line->elements = NULL; | ||
894 | line->numElements = 0; | ||
895 | line->next = NULL; | ||
896 | } | ||
897 | |||
898 | niro | 914 | struct singleLine * lineDup(struct singleLine * line) { |
899 | struct singleLine * newLine = malloc(sizeof(*newLine)); | ||
900 | |||
901 | newLine->indent = strdup(line->indent); | ||
902 | newLine->next = NULL; | ||
903 | newLine->type = line->type; | ||
904 | newLine->numElements = line->numElements; | ||
905 | newLine->elements = malloc(sizeof(*newLine->elements) * | ||
906 | newLine->numElements); | ||
907 | |||
908 | niro | 1846 | for (int i = 0; i < newLine->numElements; i++) { |
909 | niro | 914 | newLine->elements[i].indent = strdup(line->elements[i].indent); |
910 | newLine->elements[i].item = strdup(line->elements[i].item); | ||
911 | } | ||
912 | |||
913 | return newLine; | ||
914 | } | ||
915 | |||
916 | niro | 532 | static void lineFree(struct singleLine * line) { |
917 | if (line->indent) free(line->indent); | ||
918 | |||
919 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
920 | niro | 532 | free(line->elements[i].item); |
921 | free(line->elements[i].indent); | ||
922 | } | ||
923 | |||
924 | if (line->elements) free(line->elements); | ||
925 | lineInit(line); | ||
926 | } | ||
927 | |||
928 | static int lineWrite(FILE * out, struct singleLine * line, | ||
929 | struct configFileInfo * cfi) { | ||
930 | if (fprintf(out, "%s", line->indent) == -1) return -1; | ||
931 | |||
932 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
933 | niro | 1801 | /* Need to handle this, because we strip the quotes from |
934 | * menuentry when read it. */ | ||
935 | if (line->type == LT_MENUENTRY && i == 1) { | ||
936 | niro | 2989 | if(!isquote(*line->elements[i].item)) { |
937 | int substring = 0; | ||
938 | /* If the line contains nested quotes, we did not strip | ||
939 | * the "interna" quotes and we must use the right quotes | ||
940 | * again when writing the updated file. */ | ||
941 | for (int j = i; j < line->numElements; j++) { | ||
942 | if (strchr(line->elements[i].item, '\'') != NULL) { | ||
943 | substring = 1; | ||
944 | fprintf(out, "\"%s\"", line->elements[i].item); | ||
945 | break; | ||
946 | } | ||
947 | } | ||
948 | if (!substring) | ||
949 | fprintf(out, "\'%s\'", line->elements[i].item); | ||
950 | } else { | ||
951 | niro | 1801 | fprintf(out, "%s", line->elements[i].item); |
952 | niro | 2989 | } |
953 | niro | 1801 | fprintf(out, "%s", line->elements[i].indent); |
954 | |||
955 | continue; | ||
956 | } | ||
957 | |||
958 | niro | 532 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) |
959 | if (fputc('"', out) == EOF) return -1; | ||
960 | |||
961 | if (fprintf(out, "%s", line->elements[i].item) == -1) return -1; | ||
962 | niro | 914 | if (i < line->numElements - 1) |
963 | if (fprintf(out, "%s", line->elements[i].indent) == -1) return -1; | ||
964 | niro | 532 | } |
965 | |||
966 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) | ||
967 | if (fputc('"', out) == EOF) return -1; | ||
968 | |||
969 | if (fprintf(out, "\n") == -1) return -1; | ||
970 | |||
971 | return 0; | ||
972 | } | ||
973 | |||
974 | /* we've guaranteed that the buffer ends w/ \n\0 */ | ||
975 | static int getNextLine(char ** bufPtr, struct singleLine * line, | ||
976 | struct configFileInfo * cfi) { | ||
977 | char * end; | ||
978 | char * start = *bufPtr; | ||
979 | char * chptr; | ||
980 | int elementsAlloced = 0; | ||
981 | struct lineElement * element; | ||
982 | int first = 1; | ||
983 | |||
984 | lineFree(line); | ||
985 | |||
986 | end = strchr(start, '\n'); | ||
987 | *end = '\0'; | ||
988 | *bufPtr = end + 1; | ||
989 | |||
990 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; | ||
991 | |||
992 | line->indent = strndup(start, chptr - start); | ||
993 | start = chptr; | ||
994 | |||
995 | while (start < end) { | ||
996 | /* we know !isspace(*start) */ | ||
997 | |||
998 | if (elementsAlloced == line->numElements) { | ||
999 | elementsAlloced += 5; | ||
1000 | line->elements = realloc(line->elements, | ||
1001 | sizeof(*line->elements) * elementsAlloced); | ||
1002 | } | ||
1003 | |||
1004 | element = line->elements + line->numElements; | ||
1005 | |||
1006 | chptr = start; | ||
1007 | while (*chptr && !isspace(*chptr)) { | ||
1008 | if (first && *chptr == '=') break; | ||
1009 | chptr++; | ||
1010 | } | ||
1011 | element->item = strndup(start, chptr - start); | ||
1012 | start = chptr; | ||
1013 | |||
1014 | /* lilo actually accepts the pathological case of append = " foo " */ | ||
1015 | if (*start == '=') | ||
1016 | chptr = start + 1; | ||
1017 | else | ||
1018 | chptr = start; | ||
1019 | |||
1020 | do { | ||
1021 | for (; *chptr && isspace(*chptr); chptr++); | ||
1022 | if (*chptr == '=') | ||
1023 | chptr = chptr + 1; | ||
1024 | } while (isspace(*chptr)); | ||
1025 | |||
1026 | element->indent = strndup(start, chptr - start); | ||
1027 | start = chptr; | ||
1028 | |||
1029 | line->numElements++; | ||
1030 | first = 0; | ||
1031 | } | ||
1032 | |||
1033 | if (!line->numElements) | ||
1034 | line->type = LT_WHITESPACE; | ||
1035 | else { | ||
1036 | niro | 914 | line->type = getTypeByKeyword(line->elements[0].item, cfi); |
1037 | if (line->type == LT_UNKNOWN) { | ||
1038 | niro | 532 | /* zipl does [title] instead of something reasonable like all |
1039 | * the other boot loaders. kind of ugly */ | ||
1040 | if (cfi->titleBracketed && isBracketedTitle(line)) { | ||
1041 | line->type = LT_TITLE; | ||
1042 | } | ||
1043 | |||
1044 | /* this is awkward, but we need to be able to handle keywords | ||
1045 | that begin with a # (specifically for #boot in grub.conf), | ||
1046 | but still make comments lines with no elements (everything | ||
1047 | stored in the indent */ | ||
1048 | if (*line->elements[0].item == '#') { | ||
1049 | char * fullLine; | ||
1050 | int len; | ||
1051 | |||
1052 | len = strlen(line->indent); | ||
1053 | niro | 1846 | for (int i = 0; i < line->numElements; i++) |
1054 | niro | 532 | len += strlen(line->elements[i].item) + |
1055 | strlen(line->elements[i].indent); | ||
1056 | |||
1057 | fullLine = malloc(len + 1); | ||
1058 | strcpy(fullLine, line->indent); | ||
1059 | free(line->indent); | ||
1060 | line->indent = fullLine; | ||
1061 | |||
1062 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
1063 | niro | 532 | strcat(fullLine, line->elements[i].item); |
1064 | strcat(fullLine, line->elements[i].indent); | ||
1065 | free(line->elements[i].item); | ||
1066 | free(line->elements[i].indent); | ||
1067 | } | ||
1068 | |||
1069 | line->type = LT_WHITESPACE; | ||
1070 | line->numElements = 0; | ||
1071 | } | ||
1072 | niro | 914 | } else { |
1073 | struct keywordTypes *kw; | ||
1074 | |||
1075 | kw = getKeywordByType(line->type, cfi); | ||
1076 | |||
1077 | /* space isn't the only separator, we need to split | ||
1078 | * elements up more | ||
1079 | */ | ||
1080 | if (!isspace(kw->separatorChar)) { | ||
1081 | char indent[2] = ""; | ||
1082 | indent[0] = kw->separatorChar; | ||
1083 | niro | 1846 | for (int i = 1; i < line->numElements; i++) { |
1084 | niro | 914 | char *p; |
1085 | int numNewElements; | ||
1086 | |||
1087 | numNewElements = 0; | ||
1088 | p = line->elements[i].item; | ||
1089 | while (*p != '\0') { | ||
1090 | if (*p == kw->separatorChar) | ||
1091 | numNewElements++; | ||
1092 | p++; | ||
1093 | } | ||
1094 | if (line->numElements + numNewElements >= elementsAlloced) { | ||
1095 | elementsAlloced += numNewElements + 5; | ||
1096 | line->elements = realloc(line->elements, | ||
1097 | sizeof(*line->elements) * elementsAlloced); | ||
1098 | } | ||
1099 | |||
1100 | niro | 1846 | for (int j = line->numElements; j > i; j--) { |
1101 | niro | 914 | line->elements[j + numNewElements] = line->elements[j]; |
1102 | } | ||
1103 | line->numElements += numNewElements; | ||
1104 | |||
1105 | p = line->elements[i].item; | ||
1106 | while (*p != '\0') { | ||
1107 | |||
1108 | while (*p != kw->separatorChar && *p != '\0') p++; | ||
1109 | if (*p == '\0') { | ||
1110 | break; | ||
1111 | } | ||
1112 | |||
1113 | niro | 1840 | line->elements[i + 1].indent = line->elements[i].indent; |
1114 | niro | 914 | line->elements[i].indent = strdup(indent); |
1115 | *p++ = '\0'; | ||
1116 | i++; | ||
1117 | line->elements[i].item = strdup(p); | ||
1118 | } | ||
1119 | } | ||
1120 | } | ||
1121 | niro | 532 | } |
1122 | } | ||
1123 | |||
1124 | return 0; | ||
1125 | } | ||
1126 | |||
1127 | niro | 2258 | static int isnumber(const char *s) |
1128 | { | ||
1129 | int i; | ||
1130 | for (i = 0; s[i] != '\0'; i++) | ||
1131 | if (s[i] < '0' || s[i] > '9') | ||
1132 | return 0; | ||
1133 | return i; | ||
1134 | } | ||
1135 | |||
1136 | niro | 532 | static struct grubConfig * readConfig(const char * inName, |
1137 | struct configFileInfo * cfi) { | ||
1138 | int in; | ||
1139 | char * incoming = NULL, * head; | ||
1140 | int rc; | ||
1141 | int sawEntry = 0; | ||
1142 | int movedLine = 0; | ||
1143 | struct grubConfig * cfg; | ||
1144 | struct singleLine * last = NULL, * line, * defaultLine = NULL; | ||
1145 | char * end; | ||
1146 | struct singleEntry * entry = NULL; | ||
1147 | niro | 1846 | int len; |
1148 | niro | 532 | char * buf; |
1149 | |||
1150 | niro | 2246 | if (inName == NULL) { |
1151 | printf("Could not find bootloader configuration\n"); | ||
1152 | exit(1); | ||
1153 | } else if (!strcmp(inName, "-")) { | ||
1154 | niro | 532 | in = 0; |
1155 | } else { | ||
1156 | if ((in = open(inName, O_RDONLY)) < 0) { | ||
1157 | fprintf(stderr, _("error opening %s for read: %s\n"), | ||
1158 | inName, strerror(errno)); | ||
1159 | return NULL; | ||
1160 | } | ||
1161 | } | ||
1162 | |||
1163 | rc = readFile(in, &incoming); | ||
1164 | close(in); | ||
1165 | if (rc) return NULL; | ||
1166 | |||
1167 | head = incoming; | ||
1168 | cfg = malloc(sizeof(*cfg)); | ||
1169 | cfg->primaryIndent = strdup(""); | ||
1170 | cfg->secondaryIndent = strdup("\t"); | ||
1171 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; | ||
1172 | cfg->cfi = cfi; | ||
1173 | cfg->theLines = NULL; | ||
1174 | cfg->entries = NULL; | ||
1175 | cfg->fallbackImage = 0; | ||
1176 | |||
1177 | /* copy everything we have */ | ||
1178 | while (*head) { | ||
1179 | line = malloc(sizeof(*line)); | ||
1180 | lineInit(line); | ||
1181 | |||
1182 | if (getNextLine(&head, line, cfi)) { | ||
1183 | free(line); | ||
1184 | /* XXX memory leak of everything in cfg */ | ||
1185 | return NULL; | ||
1186 | } | ||
1187 | |||
1188 | if (!sawEntry && line->numElements) { | ||
1189 | free(cfg->primaryIndent); | ||
1190 | cfg->primaryIndent = strdup(line->indent); | ||
1191 | } else if (line->numElements) { | ||
1192 | free(cfg->secondaryIndent); | ||
1193 | cfg->secondaryIndent = strdup(line->indent); | ||
1194 | } | ||
1195 | |||
1196 | niro | 1727 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
1197 | niro | 532 | sawEntry = 1; |
1198 | if (!entry) { | ||
1199 | cfg->entries = malloc(sizeof(*entry)); | ||
1200 | entry = cfg->entries; | ||
1201 | } else { | ||
1202 | entry->next = malloc(sizeof(*entry)); | ||
1203 | entry = entry->next; | ||
1204 | } | ||
1205 | |||
1206 | entry->skip = 0; | ||
1207 | entry->multiboot = 0; | ||
1208 | entry->lines = NULL; | ||
1209 | entry->next = NULL; | ||
1210 | } | ||
1211 | |||
1212 | niro | 1696 | if (line->type == LT_SET_VARIABLE) { |
1213 | dbgPrintf("found 'set' command (%d elements): ", line->numElements); | ||
1214 | dbgPrintf("%s", line->indent); | ||
1215 | niro | 1846 | for (int i = 0; i < line->numElements; i++) |
1216 | niro | 1840 | dbgPrintf("\"%s\"%s", line->elements[i].item, line->elements[i].indent); |
1217 | niro | 1696 | dbgPrintf("\n"); |
1218 | struct keywordTypes *kwType = getKeywordByType(LT_DEFAULT, cfi); | ||
1219 | if (kwType && line->numElements == 3 && | ||
1220 | niro | 2252 | !strcmp(line->elements[1].item, kwType->key) && |
1221 | !is_special_grub2_variable(line->elements[2].item)) { | ||
1222 | niro | 1696 | dbgPrintf("Line sets default config\n"); |
1223 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; | ||
1224 | defaultLine = line; | ||
1225 | } | ||
1226 | niro | 914 | |
1227 | niro | 1940 | } else if (iskernel(line->type)) { |
1228 | niro | 914 | /* if by some freak chance this is multiboot and the "module" |
1229 | * lines came earlier in the template, make sure to use LT_HYPER | ||
1230 | * instead of LT_KERNEL now | ||
1231 | */ | ||
1232 | niro | 2694 | if (entry && entry->multiboot) |
1233 | niro | 914 | line->type = LT_HYPER; |
1234 | |||
1235 | niro | 532 | } else if (line->type == LT_MBMODULE) { |
1236 | niro | 914 | /* go back and fix the LT_KERNEL line to indicate LT_HYPER |
1237 | * instead, now that we know this is a multiboot entry. | ||
1238 | * This only applies to grub, but that's the only place we | ||
1239 | * should find LT_MBMODULE lines anyway. | ||
1240 | */ | ||
1241 | niro | 1846 | for (struct singleLine *l = entry->lines; l; l = l->next) { |
1242 | niro | 914 | if (l->type == LT_HYPER) |
1243 | break; | ||
1244 | niro | 1940 | else if (iskernel(l->type)) { |
1245 | niro | 914 | l->type = LT_HYPER; |
1246 | break; | ||
1247 | } | ||
1248 | } | ||
1249 | niro | 532 | entry->multiboot = 1; |
1250 | niro | 914 | |
1251 | } else if (line->type == LT_HYPER) { | ||
1252 | entry->multiboot = 1; | ||
1253 | |||
1254 | niro | 532 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1255 | cfg->fallbackImage = strtol(line->elements[1].item, &end, 10); | ||
1256 | if (*end) cfg->fallbackImage = -1; | ||
1257 | niro | 914 | |
1258 | niro | 2692 | } else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted) || |
1259 | (line->type == LT_TITLE && line->numElements > 1)) { | ||
1260 | /* make the title/default a single argument (undoing our parsing) */ | ||
1261 | niro | 532 | len = 0; |
1262 | niro | 1846 | for (int i = 1; i < line->numElements; i++) { |
1263 | niro | 532 | len += strlen(line->elements[i].item); |
1264 | len += strlen(line->elements[i].indent); | ||
1265 | } | ||
1266 | buf = malloc(len + 1); | ||
1267 | *buf = '\0'; | ||
1268 | |||
1269 | niro | 1846 | for (int i = 1; i < line->numElements; i++) { |
1270 | niro | 532 | strcat(buf, line->elements[i].item); |
1271 | free(line->elements[i].item); | ||
1272 | |||
1273 | if ((i + 1) != line->numElements) { | ||
1274 | strcat(buf, line->elements[i].indent); | ||
1275 | free(line->elements[i].indent); | ||
1276 | } | ||
1277 | } | ||
1278 | |||
1279 | line->elements[1].indent = | ||
1280 | line->elements[line->numElements - 1].indent; | ||
1281 | line->elements[1].item = buf; | ||
1282 | line->numElements = 2; | ||
1283 | niro | 1801 | } else if (line->type == LT_MENUENTRY && line->numElements > 3) { |
1284 | /* let --remove-kernel="TITLE=what" work */ | ||
1285 | len = 0; | ||
1286 | char *extras; | ||
1287 | char *title; | ||
1288 | niro | 2989 | /* initially unseen value */ |
1289 | char quote_char = '\0'; | ||
1290 | niro | 914 | |
1291 | niro | 1846 | for (int i = 1; i < line->numElements; i++) { |
1292 | niro | 1801 | len += strlen(line->elements[i].item); |
1293 | len += strlen(line->elements[i].indent); | ||
1294 | } | ||
1295 | buf = malloc(len + 1); | ||
1296 | *buf = '\0'; | ||
1297 | |||
1298 | /* allocate mem for extra flags. */ | ||
1299 | extras = malloc(len + 1); | ||
1300 | *extras = '\0'; | ||
1301 | |||
1302 | /* get title. */ | ||
1303 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
1304 | niro | 1801 | if (!strcmp(line->elements[i].item, "menuentry")) |
1305 | continue; | ||
1306 | niro | 2989 | if (isquote(*line->elements[i].item) && quote_char == '\0') { |
1307 | /* ensure we properly pair off quotes */ | ||
1308 | quote_char = *line->elements[i].item; | ||
1309 | niro | 1801 | title = line->elements[i].item + 1; |
1310 | niro | 2989 | } else { |
1311 | niro | 1801 | title = line->elements[i].item; |
1312 | niro | 2989 | } |
1313 | niro | 1801 | |
1314 | len = strlen(title); | ||
1315 | niro | 2989 | if (title[len-1] == quote_char) { |
1316 | niro | 1801 | strncat(buf, title,len-1); |
1317 | break; | ||
1318 | } else { | ||
1319 | strcat(buf, title); | ||
1320 | strcat(buf, line->elements[i].indent); | ||
1321 | } | ||
1322 | } | ||
1323 | |||
1324 | /* get extras */ | ||
1325 | int count = 0; | ||
1326 | niro | 2989 | quote_char = '\0'; |
1327 | niro | 1846 | for (int i = 0; i < line->numElements; i++) { |
1328 | niro | 1837 | if (count >= 2) { |
1329 | niro | 1801 | strcat(extras, line->elements[i].item); |
1330 | strcat(extras, line->elements[i].indent); | ||
1331 | } | ||
1332 | |||
1333 | if (!strcmp(line->elements[i].item, "menuentry")) | ||
1334 | continue; | ||
1335 | |||
1336 | /* count ' or ", there should be two in menuentry line. */ | ||
1337 | niro | 2989 | if (isquote(*line->elements[i].item) && quote_char == '\0') { |
1338 | /* ensure we properly pair off quotes */ | ||
1339 | quote_char = *line->elements[i].item; | ||
1340 | niro | 1801 | count++; |
1341 | niro | 2989 | } |
1342 | niro | 1801 | |
1343 | len = strlen(line->elements[i].item); | ||
1344 | |||
1345 | niro | 2989 | if (line->elements[i].item[len -1] == quote_char) |
1346 | niro | 1801 | count++; |
1347 | |||
1348 | /* ok, we get the final ' or ", others are extras. */ | ||
1349 | } | ||
1350 | line->elements[1].indent = | ||
1351 | line->elements[line->numElements - 2].indent; | ||
1352 | line->elements[1].item = buf; | ||
1353 | line->elements[2].indent = | ||
1354 | line->elements[line->numElements - 2].indent; | ||
1355 | line->elements[2].item = extras; | ||
1356 | line->numElements = 3; | ||
1357 | niro | 532 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { |
1358 | /* Strip off any " which may be present; they'll be put back | ||
1359 | on write. This is one of the few (the only?) places that grubby | ||
1360 | canonicalizes the output */ | ||
1361 | |||
1362 | if (line->numElements >= 2) { | ||
1363 | int last, len; | ||
1364 | |||
1365 | niro | 1801 | if (isquote(*line->elements[1].item)) |
1366 | niro | 914 | memmove(line->elements[1].item, line->elements[1].item + 1, |
1367 | strlen(line->elements[1].item + 1) + 1); | ||
1368 | niro | 532 | |
1369 | last = line->numElements - 1; | ||
1370 | len = strlen(line->elements[last].item) - 1; | ||
1371 | niro | 1801 | if (isquote(line->elements[last].item[len])) |
1372 | niro | 532 | line->elements[last].item[len] = '\0'; |
1373 | } | ||
1374 | } | ||
1375 | |||
1376 | niro | 2692 | if (line->type == LT_DEFAULT && line->numElements == 2) { |
1377 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; | ||
1378 | defaultLine = line; | ||
1379 | } | ||
1380 | |||
1381 | niro | 532 | /* If we find a generic config option which should live at the |
1382 | top of the file, move it there. Old versions of grubby were | ||
1383 | probably responsible for putting new images in the wrong | ||
1384 | place in front of it anyway. */ | ||
1385 | if (sawEntry && line->type == LT_GENERIC) { | ||
1386 | struct singleLine **l = &cfg->theLines; | ||
1387 | struct singleLine **last_nonws = &cfg->theLines; | ||
1388 | while (*l) { | ||
1389 | if ((*l)->type != LT_WHITESPACE) | ||
1390 | last_nonws = &((*l)->next); | ||
1391 | l = &((*l)->next); | ||
1392 | } | ||
1393 | line->next = *last_nonws; | ||
1394 | *last_nonws = line; | ||
1395 | movedLine = 1; | ||
1396 | continue; /* without setting 'last' */ | ||
1397 | } | ||
1398 | niro | 914 | |
1399 | niro | 532 | /* If a second line of whitespace happens after a generic option |
1400 | which was moved, drop it. */ | ||
1401 | if (movedLine && line->type == LT_WHITESPACE && last->type == LT_WHITESPACE) { | ||
1402 | lineFree(line); | ||
1403 | free(line); | ||
1404 | movedLine = 0; | ||
1405 | continue; | ||
1406 | } | ||
1407 | movedLine = 0; | ||
1408 | |||
1409 | if (sawEntry) { | ||
1410 | if (!entry->lines) | ||
1411 | entry->lines = line; | ||
1412 | else | ||
1413 | last->next = line; | ||
1414 | niro | 1696 | dbgPrintf("readConfig added %s to %p\n", getKeyByType(line->type, cfi), entry); |
1415 | |||
1416 | /* we could have seen this outside of an entry... if so, we | ||
1417 | * ignore it like any other line we don't grok */ | ||
1418 | if (line->type == LT_ENTRY_END && sawEntry) | ||
1419 | sawEntry = 0; | ||
1420 | niro | 532 | } else { |
1421 | if (!cfg->theLines) | ||
1422 | cfg->theLines = line; | ||
1423 | niro | 914 | else |
1424 | niro | 532 | last->next = line; |
1425 | niro | 1696 | dbgPrintf("readConfig added %s to cfg\n", getKeyByType(line->type, cfi)); |
1426 | niro | 532 | } |
1427 | |||
1428 | last = line; | ||
1429 | } | ||
1430 | |||
1431 | free(incoming); | ||
1432 | |||
1433 | niro | 1696 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1434 | niro | 532 | if (defaultLine) { |
1435 | niro | 1748 | if (defaultLine->numElements > 2 && |
1436 | cfi->defaultSupportSaved && | ||
1437 | !strncmp(defaultLine->elements[2].item,"\"${saved_entry}\"", 16)) { | ||
1438 | niro | 2252 | cfg->cfi->defaultIsSaved = 1; |
1439 | cfg->defaultImage = DEFAULT_SAVED_GRUB2; | ||
1440 | if (cfg->cfi->getEnv) { | ||
1441 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); | ||
1442 | if (defTitle) { | ||
1443 | int index = 0; | ||
1444 | niro | 2258 | if (isnumber(defTitle)) { |
1445 | index = atoi(defTitle); | ||
1446 | entry = findEntryByIndex(cfg, index); | ||
1447 | } else { | ||
1448 | entry = findEntryByTitle(cfg, defTitle, &index); | ||
1449 | } | ||
1450 | niro | 2252 | if (entry) |
1451 | cfg->defaultImage = index; | ||
1452 | } | ||
1453 | } | ||
1454 | niro | 1748 | } else if (cfi->defaultIsVariable) { |
1455 | niro | 1696 | char *value = defaultLine->elements[2].item; |
1456 | while (*value && (*value == '"' || *value == '\'' || | ||
1457 | *value == ' ' || *value == '\t')) | ||
1458 | value++; | ||
1459 | cfg->defaultImage = strtol(value, &end, 10); | ||
1460 | while (*end && (*end == '"' || *end == '\'' || | ||
1461 | *end == ' ' || *end == '\t')) | ||
1462 | end++; | ||
1463 | if (*end) cfg->defaultImage = -1; | ||
1464 | } else if (cfi->defaultSupportSaved && | ||
1465 | niro | 532 | !strncmp(defaultLine->elements[1].item, "saved", 5)) { |
1466 | cfg->defaultImage = DEFAULT_SAVED; | ||
1467 | } else if (cfi->defaultIsIndex) { | ||
1468 | cfg->defaultImage = strtol(defaultLine->elements[1].item, &end, 10); | ||
1469 | if (*end) cfg->defaultImage = -1; | ||
1470 | } else if (defaultLine->numElements >= 2) { | ||
1471 | niro | 1846 | int i = 0; |
1472 | niro | 532 | while ((entry = findEntryByIndex(cfg, i))) { |
1473 | for (line = entry->lines; line; line = line->next) | ||
1474 | if (line->type == LT_TITLE) break; | ||
1475 | |||
1476 | if (!cfi->titleBracketed) { | ||
1477 | if (line && (line->numElements >= 2) && | ||
1478 | !strcmp(defaultLine->elements[1].item, | ||
1479 | line->elements[1].item)) break; | ||
1480 | } else if (line) { | ||
1481 | if (!strcmp(defaultLine->elements[1].item, | ||
1482 | niro | 2980 | extractTitle(cfg, line))) break; |
1483 | niro | 532 | } |
1484 | i++; | ||
1485 | niro | 914 | entry = NULL; |
1486 | niro | 532 | } |
1487 | |||
1488 | niro | 914 | if (entry){ |
1489 | cfg->defaultImage = i; | ||
1490 | }else{ | ||
1491 | cfg->defaultImage = -1; | ||
1492 | } | ||
1493 | niro | 532 | } |
1494 | niro | 2252 | } else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) { |
1495 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); | ||
1496 | if (defTitle) { | ||
1497 | int index = 0; | ||
1498 | niro | 2258 | if (isnumber(defTitle)) { |
1499 | index = atoi(defTitle); | ||
1500 | entry = findEntryByIndex(cfg, index); | ||
1501 | } else { | ||
1502 | entry = findEntryByTitle(cfg, defTitle, &index); | ||
1503 | } | ||
1504 | niro | 2252 | if (entry) |
1505 | cfg->defaultImage = index; | ||
1506 | } | ||
1507 | niro | 914 | } else { |
1508 | cfg->defaultImage = 0; | ||
1509 | niro | 532 | } |
1510 | |||
1511 | return cfg; | ||
1512 | } | ||
1513 | |||
1514 | niro | 2995 | static void writeDefault(FILE * out, char * indent, |
1515 | niro | 532 | char * separator, struct grubConfig * cfg) { |
1516 | struct singleEntry * entry; | ||
1517 | struct singleLine * line; | ||
1518 | int i; | ||
1519 | |||
1520 | niro | 2995 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) |
1521 | return; | ||
1522 | niro | 532 | |
1523 | if (cfg->defaultImage == DEFAULT_SAVED) | ||
1524 | fprintf(out, "%sdefault%ssaved\n", indent, separator); | ||
1525 | niro | 2252 | else if (cfg->cfi->defaultIsSaved) { |
1526 | niro | 1748 | fprintf(out, "%sset default=\"${saved_entry}\"\n", indent); |
1527 | niro | 2252 | if (cfg->defaultImage >= 0 && cfg->cfi->setEnv) { |
1528 | char *title; | ||
1529 | entry = findEntryByIndex(cfg, cfg->defaultImage); | ||
1530 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
1531 | if (!line) | ||
1532 | line = getLineByType(LT_TITLE, entry->lines); | ||
1533 | if (line) { | ||
1534 | niro | 2980 | title = extractTitle(cfg, line); |
1535 | niro | 2252 | if (title) |
1536 | cfg->cfi->setEnv(cfg->cfi, "saved_entry", title); | ||
1537 | } | ||
1538 | } | ||
1539 | } else if (cfg->defaultImage > -1) { | ||
1540 | niro | 532 | if (cfg->cfi->defaultIsIndex) { |
1541 | niro | 1696 | if (cfg->cfi->defaultIsVariable) { |
1542 | fprintf(out, "%sset default=\"%d\"\n", indent, | ||
1543 | cfg->defaultImage); | ||
1544 | } else { | ||
1545 | niro | 2995 | fprintf(out, "%sdefault%s%d\n", indent, separator, |
1546 | niro | 1696 | cfg->defaultImage); |
1547 | } | ||
1548 | niro | 532 | } else { |
1549 | int image = cfg->defaultImage; | ||
1550 | |||
1551 | entry = cfg->entries; | ||
1552 | niro | 2995 | while (entry && entry->skip) |
1553 | entry = entry->next; | ||
1554 | niro | 532 | |
1555 | i = 0; | ||
1556 | while (entry && i < image) { | ||
1557 | entry = entry->next; | ||
1558 | |||
1559 | niro | 2995 | while (entry && entry->skip) |
1560 | entry = entry->next; | ||
1561 | niro | 532 | i++; |
1562 | } | ||
1563 | |||
1564 | niro | 2995 | if (!entry) |
1565 | return; | ||
1566 | niro | 532 | |
1567 | niro | 914 | line = getLineByType(LT_TITLE, entry->lines); |
1568 | niro | 532 | |
1569 | if (line && line->numElements >= 2) | ||
1570 | niro | 2995 | fprintf(out, "%sdefault%s%s\n", indent, separator, |
1571 | niro | 532 | line->elements[1].item); |
1572 | niro | 2995 | else if (line && (line->numElements == 1) && |
1573 | niro | 532 | cfg->cfi->titleBracketed) { |
1574 | niro | 2995 | char *title = extractTitle(cfg, line); |
1575 | if (title) { | ||
1576 | fprintf(out, "%sdefault%s%s\n", indent, separator, title); | ||
1577 | free(title); | ||
1578 | } | ||
1579 | niro | 532 | } |
1580 | } | ||
1581 | } | ||
1582 | } | ||
1583 | |||
1584 | static int writeConfig(struct grubConfig * cfg, char * outName, | ||
1585 | const char * prefix) { | ||
1586 | FILE * out; | ||
1587 | struct singleLine * line; | ||
1588 | struct singleEntry * entry; | ||
1589 | char * tmpOutName; | ||
1590 | int needs = MAIN_DEFAULT; | ||
1591 | struct stat sb; | ||
1592 | int i; | ||
1593 | |||
1594 | if (!strcmp(outName, "-")) { | ||
1595 | out = stdout; | ||
1596 | tmpOutName = NULL; | ||
1597 | } else { | ||
1598 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { | ||
1599 | char * buf; | ||
1600 | int len = 256; | ||
1601 | int rc; | ||
1602 | |||
1603 | /* most likely the symlink is relative, so change our | ||
1604 | niro | 914 | directory to the dir of the symlink */ |
1605 | niro | 1868 | char *dir = strdupa(outName); |
1606 | niro | 1934 | rc = chdir(dirname(dir)); |
1607 | niro | 532 | do { |
1608 | buf = alloca(len + 1); | ||
1609 | niro | 914 | rc = readlink(basename(outName), buf, len); |
1610 | niro | 532 | if (rc == len) len += 256; |
1611 | } while (rc == len); | ||
1612 | |||
1613 | if (rc < 0) { | ||
1614 | fprintf(stderr, _("grubby: error readlink link %s: %s\n"), | ||
1615 | outName, strerror(errno)); | ||
1616 | return 1; | ||
1617 | } | ||
1618 | |||
1619 | outName = buf; | ||
1620 | outName[rc] = '\0'; | ||
1621 | } | ||
1622 | |||
1623 | tmpOutName = alloca(strlen(outName) + 2); | ||
1624 | sprintf(tmpOutName, "%s-", outName); | ||
1625 | out = fopen(tmpOutName, "w"); | ||
1626 | if (!out) { | ||
1627 | fprintf(stderr, _("grubby: error creating %s: %s\n"), tmpOutName, | ||
1628 | strerror(errno)); | ||
1629 | return 1; | ||
1630 | } | ||
1631 | |||
1632 | if (!stat(outName, &sb)) { | ||
1633 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { | ||
1634 | fprintf(stderr, _("grubby: error setting perms on %s: %s\n"), | ||
1635 | tmpOutName, strerror(errno)); | ||
1636 | fclose(out); | ||
1637 | unlink(tmpOutName); | ||
1638 | return 1; | ||
1639 | } | ||
1640 | } | ||
1641 | } | ||
1642 | |||
1643 | line = cfg->theLines; | ||
1644 | niro | 1696 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); |
1645 | niro | 532 | while (line) { |
1646 | niro | 1696 | if (line->type == LT_SET_VARIABLE && defaultKw && |
1647 | line->numElements == 3 && | ||
1648 | niro | 2252 | !strcmp(line->elements[1].item, defaultKw->key) && |
1649 | !is_special_grub2_variable(line->elements[2].item)) { | ||
1650 | niro | 532 | writeDefault(out, line->indent, line->elements[0].indent, cfg); |
1651 | needs &= ~MAIN_DEFAULT; | ||
1652 | niro | 1696 | } else if (line->type == LT_DEFAULT) { |
1653 | writeDefault(out, line->indent, line->elements[0].indent, cfg); | ||
1654 | needs &= ~MAIN_DEFAULT; | ||
1655 | niro | 532 | } else if (line->type == LT_FALLBACK) { |
1656 | if (cfg->fallbackImage > -1) | ||
1657 | fprintf(out, "%s%s%s%d\n", line->indent, | ||
1658 | line->elements[0].item, line->elements[0].indent, | ||
1659 | cfg->fallbackImage); | ||
1660 | } else { | ||
1661 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1662 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1663 | tmpOutName, strerror(errno)); | ||
1664 | fclose(out); | ||
1665 | unlink(tmpOutName); | ||
1666 | return 1; | ||
1667 | } | ||
1668 | } | ||
1669 | |||
1670 | line = line->next; | ||
1671 | } | ||
1672 | |||
1673 | if (needs & MAIN_DEFAULT) { | ||
1674 | writeDefault(out, cfg->primaryIndent, "=", cfg); | ||
1675 | needs &= ~MAIN_DEFAULT; | ||
1676 | } | ||
1677 | |||
1678 | i = 0; | ||
1679 | while ((entry = findEntryByIndex(cfg, i++))) { | ||
1680 | if (entry->skip) continue; | ||
1681 | |||
1682 | line = entry->lines; | ||
1683 | while (line) { | ||
1684 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1685 | fprintf(stderr, _("grubby: error writing %s: %s\n"), | ||
1686 | tmpOutName, strerror(errno)); | ||
1687 | fclose(out); | ||
1688 | unlink(tmpOutName); | ||
1689 | return 1; | ||
1690 | } | ||
1691 | line = line->next; | ||
1692 | } | ||
1693 | } | ||
1694 | |||
1695 | if (tmpOutName) { | ||
1696 | if (rename(tmpOutName, outName)) { | ||
1697 | fprintf(stderr, _("grubby: error moving %s to %s: %s\n"), | ||
1698 | tmpOutName, outName, strerror(errno)); | ||
1699 | unlink(outName); | ||
1700 | return 1; | ||
1701 | } | ||
1702 | } | ||
1703 | |||
1704 | return 0; | ||
1705 | } | ||
1706 | |||
1707 | static int numEntries(struct grubConfig *cfg) { | ||
1708 | int i = 0; | ||
1709 | struct singleEntry * entry; | ||
1710 | |||
1711 | entry = cfg->entries; | ||
1712 | while (entry) { | ||
1713 | if (!entry->skip) | ||
1714 | i++; | ||
1715 | entry = entry->next; | ||
1716 | } | ||
1717 | return i; | ||
1718 | } | ||
1719 | |||
1720 | niro | 1156 | static char *findDiskForRoot() |
1721 | { | ||
1722 | int fd; | ||
1723 | char buf[65536]; | ||
1724 | char *devname; | ||
1725 | char *chptr; | ||
1726 | int rc; | ||
1727 | |||
1728 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { | ||
1729 | fprintf(stderr, "grubby: failed to open %s: %s\n", | ||
1730 | _PATH_MOUNTED, strerror(errno)); | ||
1731 | return NULL; | ||
1732 | } | ||
1733 | |||
1734 | rc = read(fd, buf, sizeof(buf) - 1); | ||
1735 | if (rc <= 0) { | ||
1736 | fprintf(stderr, "grubby: failed to read %s: %s\n", | ||
1737 | _PATH_MOUNTED, strerror(errno)); | ||
1738 | close(fd); | ||
1739 | return NULL; | ||
1740 | } | ||
1741 | close(fd); | ||
1742 | buf[rc] = '\0'; | ||
1743 | chptr = buf; | ||
1744 | |||
1745 | niro | 1841 | char *foundanswer = NULL; |
1746 | |||
1747 | niro | 1156 | while (chptr && chptr != buf+rc) { |
1748 | devname = chptr; | ||
1749 | |||
1750 | /* | ||
1751 | * The first column of a mtab entry is the device, but if the entry is a | ||
1752 | * special device it won't start with /, so move on to the next line. | ||
1753 | */ | ||
1754 | if (*devname != '/') { | ||
1755 | chptr = strchr(chptr, '\n'); | ||
1756 | if (chptr) | ||
1757 | chptr++; | ||
1758 | continue; | ||
1759 | } | ||
1760 | |||
1761 | /* Seek to the next space */ | ||
1762 | chptr = strchr(chptr, ' '); | ||
1763 | if (!chptr) { | ||
1764 | fprintf(stderr, "grubby: error parsing %s: %s\n", | ||
1765 | _PATH_MOUNTED, strerror(errno)); | ||
1766 | return NULL; | ||
1767 | } | ||
1768 | |||
1769 | /* | ||
1770 | * The second column of a mtab entry is the mount point, we are looking | ||
1771 | * for '/' obviously. | ||
1772 | */ | ||
1773 | if (*(++chptr) == '/' && *(++chptr) == ' ') { | ||
1774 | niro | 1841 | /* remember the last / entry in mtab */ |
1775 | foundanswer = devname; | ||
1776 | niro | 1156 | } |
1777 | |||
1778 | /* Next line */ | ||
1779 | chptr = strchr(chptr, '\n'); | ||
1780 | if (chptr) | ||
1781 | chptr++; | ||
1782 | } | ||
1783 | |||
1784 | niro | 1841 | /* Return the last / entry found */ |
1785 | if (foundanswer) { | ||
1786 | chptr = strchr(foundanswer, ' '); | ||
1787 | *chptr = '\0'; | ||
1788 | return strdup(foundanswer); | ||
1789 | } | ||
1790 | |||
1791 | niro | 1156 | return NULL; |
1792 | } | ||
1793 | |||
1794 | niro | 2236 | void printEntry(struct singleEntry * entry, FILE *f) { |
1795 | niro | 1736 | int i; |
1796 | struct singleLine * line; | ||
1797 | |||
1798 | for (line = entry->lines; line; line = line->next) { | ||
1799 | niro | 2236 | log_message(f, "DBG: %s", line->indent); |
1800 | niro | 1736 | for (i = 0; i < line->numElements; i++) { |
1801 | niro | 1801 | /* Need to handle this, because we strip the quotes from |
1802 | * menuentry when read it. */ | ||
1803 | if (line->type == LT_MENUENTRY && i == 1) { | ||
1804 | if(!isquote(*line->elements[i].item)) | ||
1805 | niro | 2236 | log_message(f, "\'%s\'", line->elements[i].item); |
1806 | niro | 1801 | else |
1807 | niro | 2236 | log_message(f, "%s", line->elements[i].item); |
1808 | log_message(f, "%s", line->elements[i].indent); | ||
1809 | niro | 1801 | |
1810 | continue; | ||
1811 | } | ||
1812 | |||
1813 | niro | 2236 | log_message(f, "%s%s", |
1814 | niro | 1736 | line->elements[i].item, line->elements[i].indent); |
1815 | } | ||
1816 | niro | 2236 | log_message(f, "\n"); |
1817 | niro | 1736 | } |
1818 | } | ||
1819 | |||
1820 | niro | 2236 | void notSuitablePrintf(struct singleEntry * entry, int okay, const char *fmt, ...) |
1821 | niro | 1736 | { |
1822 | niro | 2236 | static int once; |
1823 | va_list argp, argq; | ||
1824 | niro | 1736 | |
1825 | niro | 2236 | va_start(argp, fmt); |
1826 | |||
1827 | va_copy(argq, argp); | ||
1828 | if (!once) { | ||
1829 | log_time(NULL); | ||
1830 | log_message(NULL, "command line: %s\n", saved_command_line); | ||
1831 | } | ||
1832 | log_message(NULL, "DBG: Image entry %s: ", okay ? "succeeded" : "failed"); | ||
1833 | log_vmessage(NULL, fmt, argq); | ||
1834 | |||
1835 | printEntry(entry, NULL); | ||
1836 | va_end(argq); | ||
1837 | |||
1838 | if (!debug) { | ||
1839 | once = 1; | ||
1840 | va_end(argp); | ||
1841 | niro | 1736 | return; |
1842 | niro | 2236 | } |
1843 | niro | 1736 | |
1844 | niro | 2236 | if (okay) { |
1845 | va_end(argp); | ||
1846 | return; | ||
1847 | } | ||
1848 | |||
1849 | if (!once) | ||
1850 | log_message(stderr, "DBG: command line: %s\n", saved_command_line); | ||
1851 | once = 1; | ||
1852 | niro | 1736 | fprintf(stderr, "DBG: Image entry failed: "); |
1853 | vfprintf(stderr, fmt, argp); | ||
1854 | niro | 2236 | printEntry(entry, stderr); |
1855 | niro | 1736 | va_end(argp); |
1856 | } | ||
1857 | |||
1858 | niro | 1745 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
1859 | |||
1860 | static int endswith(const char *s, char c) | ||
1861 | { | ||
1862 | int slen; | ||
1863 | |||
1864 | niro | 1750 | if (!s || !s[0]) |
1865 | niro | 1745 | return 0; |
1866 | slen = strlen(s) - 1; | ||
1867 | |||
1868 | return s[slen] == c; | ||
1869 | } | ||
1870 | |||
1871 | niro | 532 | int suitableImage(struct singleEntry * entry, const char * bootPrefix, |
1872 | int skipRemoved, int flags) { | ||
1873 | struct singleLine * line; | ||
1874 | char * fullName; | ||
1875 | int i; | ||
1876 | char * dev; | ||
1877 | char * rootspec; | ||
1878 | niro | 1156 | char * rootdev; |
1879 | niro | 532 | |
1880 | niro | 1736 | if (skipRemoved && entry->skip) { |
1881 | niro | 2236 | notSuitablePrintf(entry, 0, "marked to skip\n"); |
1882 | niro | 1736 | return 0; |
1883 | } | ||
1884 | niro | 532 | |
1885 | niro | 2683 | line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines); |
1886 | niro | 1736 | if (!line) { |
1887 | niro | 2236 | notSuitablePrintf(entry, 0, "no line found\n"); |
1888 | niro | 1736 | return 0; |
1889 | } | ||
1890 | if (line->numElements < 2) { | ||
1891 | niro | 2236 | notSuitablePrintf(entry, 0, "line has only %d elements\n", |
1892 | niro | 1736 | line->numElements); |
1893 | return 0; | ||
1894 | } | ||
1895 | niro | 914 | |
1896 | niro | 2236 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
1897 | notSuitablePrintf(entry, 1, "\n"); | ||
1898 | return 1; | ||
1899 | } | ||
1900 | niro | 532 | |
1901 | fullName = alloca(strlen(bootPrefix) + | ||
1902 | strlen(line->elements[1].item) + 1); | ||
1903 | rootspec = getRootSpecifier(line->elements[1].item); | ||
1904 | niro | 1745 | int rootspec_offset = rootspec ? strlen(rootspec) : 0; |
1905 | int hasslash = endswith(bootPrefix, '/') || | ||
1906 | beginswith(line->elements[1].item + rootspec_offset, '/'); | ||
1907 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", | ||
1908 | line->elements[1].item + rootspec_offset); | ||
1909 | niro | 1736 | if (access(fullName, R_OK)) { |
1910 | niro | 2236 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); |
1911 | niro | 1736 | return 0; |
1912 | } | ||
1913 | niro | 532 | for (i = 2; i < line->numElements; i++) |
1914 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1915 | if (i < line->numElements) { | ||
1916 | dev = line->elements[i].item + 5; | ||
1917 | } else { | ||
1918 | /* look for a lilo style LT_ROOT line */ | ||
1919 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
1920 | niro | 532 | |
1921 | if (line && line->numElements >= 2) { | ||
1922 | dev = line->elements[1].item; | ||
1923 | } else { | ||
1924 | niro | 914 | /* didn't succeed in finding a LT_ROOT, let's try LT_KERNELARGS. |
1925 | * grub+multiboot uses LT_MBMODULE for the args, so check that too. | ||
1926 | */ | ||
1927 | line = getLineByType(LT_KERNELARGS|LT_MBMODULE, entry->lines); | ||
1928 | niro | 532 | |
1929 | /* failed to find one */ | ||
1930 | niro | 1736 | if (!line) { |
1931 | niro | 2236 | notSuitablePrintf(entry, 0, "no line found\n"); |
1932 | niro | 1736 | return 0; |
1933 | } | ||
1934 | niro | 532 | |
1935 | for (i = 1; i < line->numElements; i++) | ||
1936 | if (!strncasecmp(line->elements[i].item, "root=", 5)) break; | ||
1937 | if (i < line->numElements) | ||
1938 | dev = line->elements[i].item + 5; | ||
1939 | else { | ||
1940 | niro | 2236 | notSuitablePrintf(entry, 0, "no root= entry found\n"); |
1941 | niro | 532 | /* it failed too... can't find root= */ |
1942 | return 0; | ||
1943 | } | ||
1944 | } | ||
1945 | } | ||
1946 | |||
1947 | niro | 914 | dev = getpathbyspec(dev); |
1948 | niro | 1736 | if (!getpathbyspec(dev)) { |
1949 | niro | 2236 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", dev); |
1950 | niro | 914 | return 0; |
1951 | niro | 1736 | } else |
1952 | dev = getpathbyspec(dev); | ||
1953 | niro | 532 | |
1954 | niro | 1156 | rootdev = findDiskForRoot(); |
1955 | niro | 1736 | if (!rootdev) { |
1956 | niro | 2236 | notSuitablePrintf(entry, 0, "can't find root device\n"); |
1957 | niro | 914 | return 0; |
1958 | niro | 1736 | } |
1959 | niro | 914 | |
1960 | niro | 1177 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
1961 | niro | 2236 | notSuitablePrintf(entry, 0, "uuid missing: rootdev %s, dev %s\n", |
1962 | niro | 1736 | getuuidbydev(rootdev), getuuidbydev(dev)); |
1963 | niro | 1177 | free(rootdev); |
1964 | return 0; | ||
1965 | } | ||
1966 | niro | 532 | |
1967 | niro | 1156 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
1968 | niro | 2236 | notSuitablePrintf(entry, 0, "uuid mismatch: rootdev %s, dev %s\n", |
1969 | niro | 1736 | getuuidbydev(rootdev), getuuidbydev(dev)); |
1970 | niro | 1156 | free(rootdev); |
1971 | niro | 914 | return 0; |
1972 | niro | 1156 | } |
1973 | niro | 532 | |
1974 | niro | 1156 | free(rootdev); |
1975 | niro | 2236 | notSuitablePrintf(entry, 1, "\n"); |
1976 | niro | 1156 | |
1977 | niro | 532 | return 1; |
1978 | } | ||
1979 | |||
1980 | /* returns the first match on or after the one pointed to by index (if index | ||
1981 | is not NULL) which is not marked as skip */ | ||
1982 | struct singleEntry * findEntryByPath(struct grubConfig * config, | ||
1983 | const char * kernel, const char * prefix, | ||
1984 | int * index) { | ||
1985 | struct singleEntry * entry = NULL; | ||
1986 | struct singleLine * line; | ||
1987 | int i; | ||
1988 | char * chptr; | ||
1989 | char * rootspec = NULL; | ||
1990 | enum lineType_e checkType = LT_KERNEL; | ||
1991 | |||
1992 | if (isdigit(*kernel)) { | ||
1993 | int * indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); | ||
1994 | |||
1995 | i = 0; | ||
1996 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
1997 | while (*chptr == ',') { | ||
1998 | i++; | ||
1999 | kernel = chptr + 1; | ||
2000 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
2001 | } | ||
2002 | |||
2003 | if (*chptr) { | ||
2004 | /* can't parse it, bail */ | ||
2005 | return NULL; | ||
2006 | } | ||
2007 | |||
2008 | indexVars[i + 1] = -1; | ||
2009 | niro | 2718 | |
2010 | niro | 532 | i = 0; |
2011 | if (index) { | ||
2012 | niro | 2718 | while (i < *index) { |
2013 | i++; | ||
2014 | if (indexVars[i] == -1) return NULL; | ||
2015 | } | ||
2016 | niro | 532 | } |
2017 | |||
2018 | entry = findEntryByIndex(config, indexVars[i]); | ||
2019 | if (!entry) return NULL; | ||
2020 | |||
2021 | niro | 2683 | line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines); |
2022 | niro | 532 | if (!line) return NULL; |
2023 | |||
2024 | if (index) *index = indexVars[i]; | ||
2025 | return entry; | ||
2026 | } | ||
2027 | |||
2028 | if (!strcmp(kernel, "DEFAULT")) { | ||
2029 | if (index && *index > config->defaultImage) { | ||
2030 | entry = NULL; | ||
2031 | } else { | ||
2032 | entry = findEntryByIndex(config, config->defaultImage); | ||
2033 | if (entry && entry->skip) | ||
2034 | entry = NULL; | ||
2035 | else if (index) | ||
2036 | *index = config->defaultImage; | ||
2037 | } | ||
2038 | } else if (!strcmp(kernel, "ALL")) { | ||
2039 | if (index) | ||
2040 | i = *index; | ||
2041 | else | ||
2042 | i = 0; | ||
2043 | |||
2044 | while ((entry = findEntryByIndex(config, i))) { | ||
2045 | if (!entry->skip) break; | ||
2046 | i++; | ||
2047 | } | ||
2048 | |||
2049 | if (entry && index) | ||
2050 | *index = i; | ||
2051 | } else { | ||
2052 | if (index) | ||
2053 | i = *index; | ||
2054 | else | ||
2055 | i = 0; | ||
2056 | |||
2057 | if (!strncmp(kernel, "TITLE=", 6)) { | ||
2058 | prefix = ""; | ||
2059 | niro | 1801 | checkType = LT_TITLE|LT_MENUENTRY; |
2060 | niro | 532 | kernel += 6; |
2061 | } | ||
2062 | |||
2063 | niro | 914 | for (entry = findEntryByIndex(config, i); entry; entry = entry->next, i++) { |
2064 | if (entry->skip) continue; | ||
2065 | niro | 532 | |
2066 | niro | 914 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", checkType, kernel, entry); |
2067 | niro | 532 | |
2068 | niro | 914 | /* check all the lines matching checkType */ |
2069 | for (line = entry->lines; line; line = line->next) { | ||
2070 | niro | 2052 | enum lineType_e ct = checkType; |
2071 | if (entry->multiboot && checkType == LT_KERNEL) | ||
2072 | niro | 2683 | ct = LT_KERNEL|LT_KERNEL_EFI|LT_MBMODULE|LT_HYPER|LT_KERNEL_16; |
2073 | niro | 2052 | else if (checkType & LT_KERNEL) |
2074 | niro | 2683 | ct = checkType | LT_KERNEL_EFI | LT_KERNEL_16; |
2075 | niro | 2052 | line = getLineByType(ct, line); |
2076 | if (!line) | ||
2077 | break; /* not found in this entry */ | ||
2078 | niro | 532 | |
2079 | niro | 1801 | if (line && line->type != LT_MENUENTRY && |
2080 | line->numElements >= 2) { | ||
2081 | niro | 914 | rootspec = getRootSpecifier(line->elements[1].item); |
2082 | if (!strcmp(line->elements[1].item + | ||
2083 | ((rootspec != NULL) ? strlen(rootspec) : 0), | ||
2084 | kernel + strlen(prefix))) | ||
2085 | break; | ||
2086 | } | ||
2087 | niro | 1801 | if(line->type == LT_MENUENTRY && |
2088 | !strcmp(line->elements[1].item, kernel)) | ||
2089 | break; | ||
2090 | niro | 914 | } |
2091 | |||
2092 | /* make sure this entry has a kernel identifier; this skips | ||
2093 | * non-Linux boot entries (could find netbsd etc, though, which is | ||
2094 | * unfortunate) | ||
2095 | */ | ||
2096 | niro | 2683 | if (line && getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines)) |
2097 | niro | 914 | break; /* found 'im! */ |
2098 | niro | 532 | } |
2099 | |||
2100 | if (index) *index = i; | ||
2101 | } | ||
2102 | |||
2103 | return entry; | ||
2104 | } | ||
2105 | |||
2106 | niro | 2252 | struct singleEntry * findEntryByTitle(struct grubConfig * cfg, char *title, |
2107 | int * index) { | ||
2108 | struct singleEntry * entry; | ||
2109 | struct singleLine * line; | ||
2110 | int i; | ||
2111 | char * newtitle; | ||
2112 | |||
2113 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { | ||
2114 | if (index && i < *index) | ||
2115 | continue; | ||
2116 | line = getLineByType(LT_TITLE, entry->lines); | ||
2117 | if (!line) | ||
2118 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
2119 | if (!line) | ||
2120 | continue; | ||
2121 | newtitle = grub2ExtractTitle(line); | ||
2122 | if (!newtitle) | ||
2123 | continue; | ||
2124 | if (!strcmp(title, newtitle)) | ||
2125 | break; | ||
2126 | } | ||
2127 | |||
2128 | if (!entry) | ||
2129 | return NULL; | ||
2130 | |||
2131 | if (index) | ||
2132 | *index = i; | ||
2133 | return entry; | ||
2134 | } | ||
2135 | |||
2136 | niro | 532 | struct singleEntry * findEntryByIndex(struct grubConfig * cfg, int index) { |
2137 | struct singleEntry * entry; | ||
2138 | |||
2139 | entry = cfg->entries; | ||
2140 | while (index && entry) { | ||
2141 | entry = entry->next; | ||
2142 | index--; | ||
2143 | } | ||
2144 | |||
2145 | return entry; | ||
2146 | } | ||
2147 | |||
2148 | /* Find a good template to use for the new kernel. An entry is | ||
2149 | * good if the kernel and mkinitrd exist (even if the entry | ||
2150 | * is going to be removed). Try and use the default entry, but | ||
2151 | * if that doesn't work just take the first. If we can't find one, | ||
2152 | * bail. */ | ||
2153 | struct singleEntry * findTemplate(struct grubConfig * cfg, const char * prefix, | ||
2154 | int * indexPtr, int skipRemoved, int flags) { | ||
2155 | struct singleEntry * entry, * entry2; | ||
2156 | int index; | ||
2157 | |||
2158 | niro | 2252 | if (cfg->cfi->defaultIsSaved) { |
2159 | if (cfg->cfi->getEnv) { | ||
2160 | char *defTitle = cfg->cfi->getEnv(cfg->cfi, "saved_entry"); | ||
2161 | if (defTitle) { | ||
2162 | int index = 0; | ||
2163 | niro | 2258 | if (isnumber(defTitle)) { |
2164 | index = atoi(defTitle); | ||
2165 | entry = findEntryByIndex(cfg, index); | ||
2166 | } else { | ||
2167 | entry = findEntryByTitle(cfg, defTitle, &index); | ||
2168 | } | ||
2169 | niro | 2959 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { |
2170 | niro | 2258 | cfg->defaultImage = index; |
2171 | niro | 2959 | if (indexPtr) |
2172 | *indexPtr = index; | ||
2173 | return entry; | ||
2174 | } | ||
2175 | niro | 2252 | } |
2176 | } | ||
2177 | } else if (cfg->defaultImage > -1) { | ||
2178 | niro | 532 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2179 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { | ||
2180 | if (indexPtr) *indexPtr = cfg->defaultImage; | ||
2181 | return entry; | ||
2182 | } | ||
2183 | } | ||
2184 | |||
2185 | index = 0; | ||
2186 | while ((entry = findEntryByIndex(cfg, index))) { | ||
2187 | if (suitableImage(entry, prefix, skipRemoved, flags)) { | ||
2188 | int j; | ||
2189 | for (j = 0; j < index; j++) { | ||
2190 | entry2 = findEntryByIndex(cfg, j); | ||
2191 | if (entry2->skip) index--; | ||
2192 | } | ||
2193 | if (indexPtr) *indexPtr = index; | ||
2194 | |||
2195 | return entry; | ||
2196 | } | ||
2197 | |||
2198 | index++; | ||
2199 | } | ||
2200 | |||
2201 | fprintf(stderr, _("grubby fatal error: unable to find a suitable template\n")); | ||
2202 | |||
2203 | return NULL; | ||
2204 | } | ||
2205 | |||
2206 | char * findBootPrefix(void) { | ||
2207 | struct stat sb, sb2; | ||
2208 | |||
2209 | stat("/", &sb); | ||
2210 | #ifdef __ia64__ | ||
2211 | stat("/boot/efi/EFI/redhat/", &sb2); | ||
2212 | #else | ||
2213 | stat("/boot", &sb2); | ||
2214 | #endif | ||
2215 | |||
2216 | if (sb.st_dev == sb2.st_dev) | ||
2217 | return strdup(""); | ||
2218 | |||
2219 | #ifdef __ia64__ | ||
2220 | return strdup("/boot/efi/EFI/redhat/"); | ||
2221 | #else | ||
2222 | return strdup("/boot"); | ||
2223 | #endif | ||
2224 | } | ||
2225 | |||
2226 | void markRemovedImage(struct grubConfig * cfg, const char * image, | ||
2227 | const char * prefix) { | ||
2228 | struct singleEntry * entry; | ||
2229 | |||
2230 | niro | 1801 | if (!image) |
2231 | return; | ||
2232 | niro | 532 | |
2233 | niro | 1801 | /* check and see if we're removing the default image */ |
2234 | if (isdigit(*image)) { | ||
2235 | entry = findEntryByPath(cfg, image, prefix, NULL); | ||
2236 | if(entry) | ||
2237 | entry->skip = 1; | ||
2238 | return; | ||
2239 | } | ||
2240 | |||
2241 | niro | 532 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2242 | entry->skip = 1; | ||
2243 | } | ||
2244 | |||
2245 | void setDefaultImage(struct grubConfig * config, int hasNew, | ||
2246 | const char * defaultKernelPath, int newIsDefault, | ||
2247 | niro | 1859 | const char * prefix, int flags, int index) { |
2248 | niro | 532 | struct singleEntry * entry, * entry2, * newDefault; |
2249 | int i, j; | ||
2250 | |||
2251 | if (newIsDefault) { | ||
2252 | config->defaultImage = 0; | ||
2253 | return; | ||
2254 | niro | 1859 | } else if ((index >= 0) && config->cfi->defaultIsIndex) { |
2255 | if (findEntryByIndex(config, index)) | ||
2256 | config->defaultImage = index; | ||
2257 | else | ||
2258 | config->defaultImage = -1; | ||
2259 | return; | ||
2260 | niro | 532 | } else if (defaultKernelPath) { |
2261 | i = 0; | ||
2262 | if (findEntryByPath(config, defaultKernelPath, prefix, &i)) { | ||
2263 | config->defaultImage = i; | ||
2264 | } else { | ||
2265 | config->defaultImage = -1; | ||
2266 | return; | ||
2267 | } | ||
2268 | } | ||
2269 | |||
2270 | /* defaultImage now points to what we'd like to use, but before any order | ||
2271 | changes */ | ||
2272 | niro | 1748 | if ((config->defaultImage == DEFAULT_SAVED) || |
2273 | (config->defaultImage == DEFAULT_SAVED_GRUB2)) | ||
2274 | niro | 532 | /* default is set to saved, we don't want to change it */ |
2275 | return; | ||
2276 | |||
2277 | if (config->defaultImage > -1) | ||
2278 | entry = findEntryByIndex(config, config->defaultImage); | ||
2279 | else | ||
2280 | entry = NULL; | ||
2281 | |||
2282 | if (entry && !entry->skip) { | ||
2283 | /* we can preserve the default */ | ||
2284 | if (hasNew) | ||
2285 | config->defaultImage++; | ||
2286 | |||
2287 | /* count the number of entries erased before this one */ | ||
2288 | for (j = 0; j < config->defaultImage; j++) { | ||
2289 | entry2 = findEntryByIndex(config, j); | ||
2290 | if (entry2->skip) config->defaultImage--; | ||
2291 | } | ||
2292 | } else if (hasNew) { | ||
2293 | config->defaultImage = 0; | ||
2294 | } else { | ||
2295 | /* Either we just erased the default (or the default line was bad | ||
2296 | * to begin with) and didn't put a new one in. We'll use the first | ||
2297 | * valid image. */ | ||
2298 | newDefault = findTemplate(config, prefix, &config->defaultImage, 1, | ||
2299 | flags); | ||
2300 | if (!newDefault) | ||
2301 | config->defaultImage = -1; | ||
2302 | } | ||
2303 | } | ||
2304 | |||
2305 | void setFallbackImage(struct grubConfig * config, int hasNew) { | ||
2306 | struct singleEntry * entry, * entry2; | ||
2307 | int j; | ||
2308 | |||
2309 | if (config->fallbackImage == -1) return; | ||
2310 | |||
2311 | entry = findEntryByIndex(config, config->fallbackImage); | ||
2312 | if (!entry || entry->skip) { | ||
2313 | config->fallbackImage = -1; | ||
2314 | return; | ||
2315 | } | ||
2316 | |||
2317 | if (hasNew) | ||
2318 | config->fallbackImage++; | ||
2319 | |||
2320 | /* count the number of entries erased before this one */ | ||
2321 | for (j = 0; j < config->fallbackImage; j++) { | ||
2322 | entry2 = findEntryByIndex(config, j); | ||
2323 | if (entry2->skip) config->fallbackImage--; | ||
2324 | } | ||
2325 | } | ||
2326 | |||
2327 | void displayEntry(struct singleEntry * entry, const char * prefix, int index) { | ||
2328 | struct singleLine * line; | ||
2329 | char * root = NULL; | ||
2330 | int i; | ||
2331 | niro | 2708 | int j; |
2332 | niro | 532 | |
2333 | printf("index=%d\n", index); | ||
2334 | |||
2335 | niro | 2683 | line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines); |
2336 | niro | 914 | if (!line) { |
2337 | printf("non linux entry\n"); | ||
2338 | return; | ||
2339 | } | ||
2340 | |||
2341 | niro | 1849 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2342 | printf("kernel=%s\n", line->elements[1].item); | ||
2343 | else | ||
2344 | printf("kernel=%s%s\n", prefix, line->elements[1].item); | ||
2345 | niro | 532 | |
2346 | if (line->numElements >= 3) { | ||
2347 | printf("args=\""); | ||
2348 | i = 2; | ||
2349 | while (i < line->numElements) { | ||
2350 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
2351 | root = line->elements[i].item + 5; | ||
2352 | } else { | ||
2353 | printf("%s%s", line->elements[i].item, | ||
2354 | line->elements[i].indent); | ||
2355 | } | ||
2356 | |||
2357 | i++; | ||
2358 | } | ||
2359 | printf("\"\n"); | ||
2360 | } else { | ||
2361 | niro | 914 | line = getLineByType(LT_KERNELARGS, entry->lines); |
2362 | niro | 532 | if (line) { |
2363 | char * s; | ||
2364 | |||
2365 | printf("args=\""); | ||
2366 | i = 1; | ||
2367 | while (i < line->numElements) { | ||
2368 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
2369 | root = line->elements[i].item + 5; | ||
2370 | } else { | ||
2371 | s = line->elements[i].item; | ||
2372 | |||
2373 | printf("%s%s", s, line->elements[i].indent); | ||
2374 | } | ||
2375 | |||
2376 | i++; | ||
2377 | } | ||
2378 | |||
2379 | s = line->elements[i - 1].indent; | ||
2380 | printf("\"\n"); | ||
2381 | } | ||
2382 | } | ||
2383 | |||
2384 | if (!root) { | ||
2385 | niro | 914 | line = getLineByType(LT_ROOT, entry->lines); |
2386 | niro | 532 | if (line && line->numElements >= 2) |
2387 | root=line->elements[1].item; | ||
2388 | } | ||
2389 | |||
2390 | if (root) { | ||
2391 | char * s = alloca(strlen(root) + 1); | ||
2392 | |||
2393 | strcpy(s, root); | ||
2394 | if (s[strlen(s) - 1] == '"') | ||
2395 | s[strlen(s) - 1] = '\0'; | ||
2396 | /* make sure the root doesn't have a trailing " */ | ||
2397 | printf("root=%s\n", s); | ||
2398 | } | ||
2399 | |||
2400 | niro | 2683 | line = getLineByType(LT_INITRD|LT_INITRD_EFI|LT_INITRD_16, entry->lines); |
2401 | niro | 532 | |
2402 | if (line && line->numElements >= 2) { | ||
2403 | niro | 1849 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2404 | printf("initrd="); | ||
2405 | else | ||
2406 | printf("initrd=%s", prefix); | ||
2407 | |||
2408 | niro | 532 | for (i = 1; i < line->numElements; i++) |
2409 | printf("%s%s", line->elements[i].item, line->elements[i].indent); | ||
2410 | printf("\n"); | ||
2411 | } | ||
2412 | niro | 1751 | |
2413 | line = getLineByType(LT_TITLE, entry->lines); | ||
2414 | if (line) { | ||
2415 | printf("title=%s\n", line->elements[1].item); | ||
2416 | } else { | ||
2417 | char * title; | ||
2418 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
2419 | niro | 2963 | if (line) { |
2420 | niro | 2962 | title = grub2ExtractTitle(line); |
2421 | if (title) | ||
2422 | printf("title=%s\n", title); | ||
2423 | } | ||
2424 | niro | 1751 | } |
2425 | niro | 2708 | |
2426 | for (j = 0, line = entry->lines; line; line = line->next) { | ||
2427 | if ((line->type & LT_MBMODULE) && line->numElements >= 2) { | ||
2428 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) | ||
2429 | printf("mbmodule%d=", j); | ||
2430 | else | ||
2431 | printf("mbmodule%d=%s", j, prefix); | ||
2432 | |||
2433 | for (i = 1; i < line->numElements; i++) | ||
2434 | printf("%s%s", line->elements[i].item, line->elements[i].indent); | ||
2435 | printf("\n"); | ||
2436 | j++; | ||
2437 | } | ||
2438 | } | ||
2439 | niro | 532 | } |
2440 | |||
2441 | niro | 1850 | int isSuseSystem(void) { |
2442 | const char * path; | ||
2443 | const static char default_path[] = "/etc/SuSE-release"; | ||
2444 | |||
2445 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) | ||
2446 | path = default_path; | ||
2447 | |||
2448 | if (!access(path, R_OK)) | ||
2449 | return 1; | ||
2450 | return 0; | ||
2451 | } | ||
2452 | |||
2453 | int isSuseGrubConf(const char * path) { | ||
2454 | FILE * grubConf; | ||
2455 | char * line = NULL; | ||
2456 | size_t len = 0, res = 0; | ||
2457 | |||
2458 | grubConf = fopen(path, "r"); | ||
2459 | if (!grubConf) { | ||
2460 | dbgPrintf("Could not open SuSE configuration file '%s'\n", path); | ||
2461 | return 0; | ||
2462 | } | ||
2463 | |||
2464 | while ((res = getline(&line, &len, grubConf)) != -1) { | ||
2465 | if (!strncmp(line, "setup", 5)) { | ||
2466 | fclose(grubConf); | ||
2467 | free(line); | ||
2468 | return 1; | ||
2469 | } | ||
2470 | } | ||
2471 | |||
2472 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", | ||
2473 | path); | ||
2474 | |||
2475 | fclose(grubConf); | ||
2476 | free(line); | ||
2477 | return 0; | ||
2478 | } | ||
2479 | |||
2480 | int suseGrubConfGetLba(const char * path, int * lbaPtr) { | ||
2481 | FILE * grubConf; | ||
2482 | char * line = NULL; | ||
2483 | size_t res = 0, len = 0; | ||
2484 | |||
2485 | if (!path) return 1; | ||
2486 | if (!lbaPtr) return 1; | ||
2487 | |||
2488 | grubConf = fopen(path, "r"); | ||
2489 | if (!grubConf) return 1; | ||
2490 | |||
2491 | while ((res = getline(&line, &len, grubConf)) != -1) { | ||
2492 | if (line[res - 1] == '\n') | ||
2493 | line[res - 1] = '\0'; | ||
2494 | else if (len > res) | ||
2495 | line[res] = '\0'; | ||
2496 | else { | ||
2497 | line = realloc(line, res + 1); | ||
2498 | line[res] = '\0'; | ||
2499 | } | ||
2500 | |||
2501 | if (!strncmp(line, "setup", 5)) { | ||
2502 | if (strstr(line, "--force-lba")) { | ||
2503 | *lbaPtr = 1; | ||
2504 | } else { | ||
2505 | *lbaPtr = 0; | ||
2506 | } | ||
2507 | dbgPrintf("lba: %i\n", *lbaPtr); | ||
2508 | break; | ||
2509 | } | ||
2510 | } | ||
2511 | |||
2512 | free(line); | ||
2513 | fclose(grubConf); | ||
2514 | return 0; | ||
2515 | } | ||
2516 | |||
2517 | int suseGrubConfGetInstallDevice(const char * path, char ** devicePtr) { | ||
2518 | FILE * grubConf; | ||
2519 | char * line = NULL; | ||
2520 | size_t res = 0, len = 0; | ||
2521 | char * lastParamPtr = NULL; | ||
2522 | char * secLastParamPtr = NULL; | ||
2523 | char installDeviceNumber = '\0'; | ||
2524 | char * bounds = NULL; | ||
2525 | |||
2526 | if (!path) return 1; | ||
2527 | if (!devicePtr) return 1; | ||
2528 | |||
2529 | grubConf = fopen(path, "r"); | ||
2530 | if (!grubConf) return 1; | ||
2531 | |||
2532 | while ((res = getline(&line, &len, grubConf)) != -1) { | ||
2533 | if (strncmp(line, "setup", 5)) | ||
2534 | continue; | ||
2535 | |||
2536 | if (line[res - 1] == '\n') | ||
2537 | line[res - 1] = '\0'; | ||
2538 | else if (len > res) | ||
2539 | line[res] = '\0'; | ||
2540 | else { | ||
2541 | line = realloc(line, res + 1); | ||
2542 | line[res] = '\0'; | ||
2543 | } | ||
2544 | |||
2545 | lastParamPtr = bounds = line + res; | ||
2546 | |||
2547 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ | ||
2548 | while (!isspace(*lastParamPtr)) | ||
2549 | lastParamPtr--; | ||
2550 | lastParamPtr++; | ||
2551 | |||
2552 | secLastParamPtr = lastParamPtr - 2; | ||
2553 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); | ||
2554 | |||
2555 | if (lastParamPtr + 3 > bounds) { | ||
2556 | dbgPrintf("lastParamPtr going over boundary"); | ||
2557 | fclose(grubConf); | ||
2558 | free(line); | ||
2559 | return 1; | ||
2560 | } | ||
2561 | if (!strncmp(lastParamPtr, "(hd", 3)) | ||
2562 | lastParamPtr += 3; | ||
2563 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); | ||
2564 | |||
2565 | /* | ||
2566 | * Second last parameter will decide wether last parameter is | ||
2567 | * an IMAGE_DEVICE or INSTALL_DEVICE | ||
2568 | */ | ||
2569 | while (!isspace(*secLastParamPtr)) | ||
2570 | secLastParamPtr--; | ||
2571 | secLastParamPtr++; | ||
2572 | |||
2573 | if (secLastParamPtr + 3 > bounds) { | ||
2574 | dbgPrintf("secLastParamPtr going over boundary"); | ||
2575 | fclose(grubConf); | ||
2576 | free(line); | ||
2577 | return 1; | ||
2578 | } | ||
2579 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); | ||
2580 | if (!strncmp(secLastParamPtr, "(hd", 3)) { | ||
2581 | secLastParamPtr += 3; | ||
2582 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); | ||
2583 | installDeviceNumber = *secLastParamPtr; | ||
2584 | } else { | ||
2585 | installDeviceNumber = *lastParamPtr; | ||
2586 | } | ||
2587 | |||
2588 | *devicePtr = malloc(6); | ||
2589 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); | ||
2590 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); | ||
2591 | fclose(grubConf); | ||
2592 | free(line); | ||
2593 | return 0; | ||
2594 | } | ||
2595 | |||
2596 | free(line); | ||
2597 | fclose(grubConf); | ||
2598 | return 1; | ||
2599 | } | ||
2600 | |||
2601 | int grubGetBootFromDeviceMap(const char * device, | ||
2602 | char ** bootPtr) { | ||
2603 | FILE * deviceMap; | ||
2604 | char * line = NULL; | ||
2605 | size_t res = 0, len = 0; | ||
2606 | char * devicePtr; | ||
2607 | char * bounds = NULL; | ||
2608 | const char * path; | ||
2609 | const static char default_path[] = "/boot/grub/device.map"; | ||
2610 | |||
2611 | if (!device) return 1; | ||
2612 | if (!bootPtr) return 1; | ||
2613 | |||
2614 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) | ||
2615 | path = default_path; | ||
2616 | |||
2617 | dbgPrintf("opening grub device.map file from: %s\n", path); | ||
2618 | deviceMap = fopen(path, "r"); | ||
2619 | if (!deviceMap) | ||
2620 | return 1; | ||
2621 | |||
2622 | while ((res = getline(&line, &len, deviceMap)) != -1) { | ||
2623 | if (!strncmp(line, "#", 1)) | ||
2624 | continue; | ||
2625 | |||
2626 | if (line[res - 1] == '\n') | ||
2627 | line[res - 1] = '\0'; | ||
2628 | else if (len > res) | ||
2629 | line[res] = '\0'; | ||
2630 | else { | ||
2631 | line = realloc(line, res + 1); | ||
2632 | line[res] = '\0'; | ||
2633 | } | ||
2634 | |||
2635 | devicePtr = line; | ||
2636 | bounds = line + res; | ||
2637 | |||
2638 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) | ||
2639 | devicePtr++; | ||
2640 | dbgPrintf("device: %s\n", devicePtr); | ||
2641 | |||
2642 | if (!strncmp(devicePtr, device, strlen(device))) { | ||
2643 | devicePtr += strlen(device); | ||
2644 | while (isspace(*devicePtr) && ((devicePtr + 1) <= bounds)) | ||
2645 | devicePtr++; | ||
2646 | |||
2647 | *bootPtr = strdup(devicePtr); | ||
2648 | break; | ||
2649 | } | ||
2650 | } | ||
2651 | |||
2652 | free(line); | ||
2653 | fclose(deviceMap); | ||
2654 | return 0; | ||
2655 | } | ||
2656 | |||
2657 | int suseGrubConfGetBoot(const char * path, char ** bootPtr) { | ||
2658 | char * grubDevice; | ||
2659 | |||
2660 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) | ||
2661 | dbgPrintf("error looking for grub installation device\n"); | ||
2662 | else | ||
2663 | dbgPrintf("grubby installation device: %s\n", grubDevice); | ||
2664 | |||
2665 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) | ||
2666 | dbgPrintf("error looking for grub boot device\n"); | ||
2667 | else | ||
2668 | dbgPrintf("grubby boot device: %s\n", *bootPtr); | ||
2669 | |||
2670 | free(grubDevice); | ||
2671 | return 0; | ||
2672 | } | ||
2673 | |||
2674 | int parseSuseGrubConf(int * lbaPtr, char ** bootPtr) { | ||
2675 | /* | ||
2676 | * This SuSE grub configuration file at this location is not your average | ||
2677 | * grub configuration file, but instead the grub commands used to setup | ||
2678 | * grub on that system. | ||
2679 | */ | ||
2680 | const char * path; | ||
2681 | const static char default_path[] = "/etc/grub.conf"; | ||
2682 | |||
2683 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) | ||
2684 | path = default_path; | ||
2685 | |||
2686 | if (!isSuseGrubConf(path)) return 1; | ||
2687 | |||
2688 | if (lbaPtr) { | ||
2689 | *lbaPtr = 0; | ||
2690 | if (suseGrubConfGetLba(path, lbaPtr)) | ||
2691 | return 1; | ||
2692 | } | ||
2693 | |||
2694 | if (bootPtr) { | ||
2695 | *bootPtr = NULL; | ||
2696 | suseGrubConfGetBoot(path, bootPtr); | ||
2697 | } | ||
2698 | |||
2699 | return 0; | ||
2700 | } | ||
2701 | |||
2702 | niro | 532 | int parseSysconfigGrub(int * lbaPtr, char ** bootPtr) { |
2703 | FILE * in; | ||
2704 | char buf[1024]; | ||
2705 | char * chptr; | ||
2706 | char * start; | ||
2707 | char * param; | ||
2708 | |||
2709 | niro | 926 | in = fopen("/etc/conf.d/grub", "r"); |
2710 | niro | 532 | if (!in) return 1; |
2711 | |||
2712 | if (lbaPtr) *lbaPtr = 0; | ||
2713 | if (bootPtr) *bootPtr = NULL; | ||
2714 | |||
2715 | while (fgets(buf, sizeof(buf), in)) { | ||
2716 | start = buf; | ||
2717 | while (isspace(*start)) start++; | ||
2718 | if (*start == '#') continue; | ||
2719 | |||
2720 | chptr = strchr(start, '='); | ||
2721 | if (!chptr) continue; | ||
2722 | chptr--; | ||
2723 | while (*chptr && isspace(*chptr)) chptr--; | ||
2724 | chptr++; | ||
2725 | *chptr = '\0'; | ||
2726 | |||
2727 | param = chptr + 1; | ||
2728 | while (*param && isspace(*param)) param++; | ||
2729 | if (*param == '=') { | ||
2730 | param++; | ||
2731 | while (*param && isspace(*param)) param++; | ||
2732 | } | ||
2733 | |||
2734 | chptr = param; | ||
2735 | while (*chptr && !isspace(*chptr)) chptr++; | ||
2736 | *chptr = '\0'; | ||
2737 | |||
2738 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) | ||
2739 | *lbaPtr = 1; | ||
2740 | else if (!strcmp(start, "boot") && bootPtr) | ||
2741 | *bootPtr = strdup(param); | ||
2742 | } | ||
2743 | |||
2744 | fclose(in); | ||
2745 | |||
2746 | return 0; | ||
2747 | } | ||
2748 | |||
2749 | void dumpSysconfigGrub(void) { | ||
2750 | niro | 1850 | char * boot = NULL; |
2751 | niro | 532 | int lba; |
2752 | |||
2753 | niro | 1851 | if (isSuseSystem()) { |
2754 | if (parseSuseGrubConf(&lba, &boot)) { | ||
2755 | niro | 1850 | free(boot); |
2756 | return; | ||
2757 | } | ||
2758 | } else { | ||
2759 | niro | 1851 | if (parseSysconfigGrub(&lba, &boot)) { |
2760 | niro | 1850 | free(boot); |
2761 | return; | ||
2762 | } | ||
2763 | niro | 532 | } |
2764 | niro | 1850 | |
2765 | if (lba) printf("lba\n"); | ||
2766 | if (boot) { | ||
2767 | printf("boot=%s\n", boot); | ||
2768 | free(boot); | ||
2769 | } | ||
2770 | niro | 532 | } |
2771 | |||
2772 | int displayInfo(struct grubConfig * config, char * kernel, | ||
2773 | const char * prefix) { | ||
2774 | int i = 0; | ||
2775 | struct singleEntry * entry; | ||
2776 | struct singleLine * line; | ||
2777 | |||
2778 | entry = findEntryByPath(config, kernel, prefix, &i); | ||
2779 | if (!entry) { | ||
2780 | fprintf(stderr, _("grubby: kernel not found\n")); | ||
2781 | return 1; | ||
2782 | } | ||
2783 | |||
2784 | niro | 926 | /* this is a horrible hack to support /etc/conf.d/grub; there must |
2785 | niro | 532 | be a better way */ |
2786 | if (config->cfi == &grubConfigType) { | ||
2787 | dumpSysconfigGrub(); | ||
2788 | } else { | ||
2789 | niro | 914 | line = getLineByType(LT_BOOT, config->theLines); |
2790 | niro | 532 | if (line && line->numElements >= 1) { |
2791 | printf("boot=%s\n", line->elements[1].item); | ||
2792 | } | ||
2793 | |||
2794 | niro | 914 | line = getLineByType(LT_LBA, config->theLines); |
2795 | niro | 532 | if (line) printf("lba\n"); |
2796 | } | ||
2797 | |||
2798 | displayEntry(entry, prefix, i); | ||
2799 | |||
2800 | i++; | ||
2801 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { | ||
2802 | displayEntry(entry, prefix, i); | ||
2803 | i++; | ||
2804 | } | ||
2805 | |||
2806 | return 0; | ||
2807 | } | ||
2808 | |||
2809 | niro | 914 | struct singleLine * addLineTmpl(struct singleEntry * entry, |
2810 | struct singleLine * tmplLine, | ||
2811 | struct singleLine * prevLine, | ||
2812 | const char * val, | ||
2813 | struct configFileInfo * cfi) | ||
2814 | { | ||
2815 | struct singleLine * newLine = lineDup(tmplLine); | ||
2816 | |||
2817 | niro | 1940 | if (isEfi && cfi == &grub2ConfigType) { |
2818 | enum lineType_e old = newLine->type; | ||
2819 | newLine->type = preferredLineType(newLine->type, cfi); | ||
2820 | if (old != newLine->type) | ||
2821 | newLine->elements[0].item = getKeyByType(newLine->type, cfi); | ||
2822 | } | ||
2823 | |||
2824 | niro | 914 | if (val) { |
2825 | /* override the inherited value with our own. | ||
2826 | * This is a little weak because it only applies to elements[1] | ||
2827 | */ | ||
2828 | if (newLine->numElements > 1) | ||
2829 | removeElement(newLine, 1); | ||
2830 | insertElement(newLine, val, 1, cfi); | ||
2831 | |||
2832 | /* but try to keep the rootspec from the template... sigh */ | ||
2833 | niro | 2683 | if (tmplLine->type & (LT_HYPER|LT_KERNEL|LT_MBMODULE|LT_INITRD|LT_KERNEL_EFI|LT_INITRD_EFI|LT_KERNEL_16|LT_INITRD_16)) { |
2834 | niro | 914 | char * rootspec = getRootSpecifier(tmplLine->elements[1].item); |
2835 | if (rootspec != NULL) { | ||
2836 | free(newLine->elements[1].item); | ||
2837 | newLine->elements[1].item = | ||
2838 | sdupprintf("%s%s", rootspec, val); | ||
2839 | } | ||
2840 | } | ||
2841 | } | ||
2842 | |||
2843 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? | ||
2844 | newLine->elements[0].item : ""); | ||
2845 | |||
2846 | if (!entry->lines) { | ||
2847 | /* first one on the list */ | ||
2848 | entry->lines = newLine; | ||
2849 | } else if (prevLine) { | ||
2850 | /* add after prevLine */ | ||
2851 | newLine->next = prevLine->next; | ||
2852 | prevLine->next = newLine; | ||
2853 | } | ||
2854 | |||
2855 | return newLine; | ||
2856 | } | ||
2857 | |||
2858 | niro | 532 | /* val may be NULL */ |
2859 | struct singleLine * addLine(struct singleEntry * entry, | ||
2860 | struct configFileInfo * cfi, | ||
2861 | niro | 914 | enum lineType_e type, char * defaultIndent, |
2862 | const char * val) { | ||
2863 | niro | 532 | struct singleLine * line, * prev; |
2864 | niro | 914 | struct keywordTypes * kw; |
2865 | struct singleLine tmpl; | ||
2866 | niro | 532 | |
2867 | niro | 914 | /* NB: This function shouldn't allocate items on the heap, rather on the |
2868 | * stack since it calls addLineTmpl which will make copies. | ||
2869 | */ | ||
2870 | if (type == LT_TITLE && cfi->titleBracketed) { | ||
2871 | /* we're doing a bracketed title (zipl) */ | ||
2872 | tmpl.type = type; | ||
2873 | tmpl.numElements = 1; | ||
2874 | tmpl.elements = alloca(sizeof(*tmpl.elements)); | ||
2875 | tmpl.elements[0].item = alloca(strlen(val)+3); | ||
2876 | sprintf(tmpl.elements[0].item, "[%s]", val); | ||
2877 | tmpl.elements[0].indent = ""; | ||
2878 | val = NULL; | ||
2879 | niro | 1696 | } else if (type == LT_MENUENTRY) { |
2880 | char *lineend = "--class gnu-linux --class gnu --class os {"; | ||
2881 | if (!val) { | ||
2882 | fprintf(stderr, "Line type LT_MENUENTRY requires a value\n"); | ||
2883 | abort(); | ||
2884 | } | ||
2885 | kw = getKeywordByType(type, cfi); | ||
2886 | if (!kw) { | ||
2887 | fprintf(stderr, "Looking up keyword for unknown type %d\n", type); | ||
2888 | abort(); | ||
2889 | } | ||
2890 | tmpl.indent = ""; | ||
2891 | tmpl.type = type; | ||
2892 | tmpl.numElements = 3; | ||
2893 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
2894 | tmpl.elements[0].item = kw->key; | ||
2895 | tmpl.elements[0].indent = alloca(2); | ||
2896 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
2897 | tmpl.elements[1].item = (char *)val; | ||
2898 | tmpl.elements[1].indent = alloca(2); | ||
2899 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); | ||
2900 | tmpl.elements[2].item = alloca(strlen(lineend)+1); | ||
2901 | strcpy(tmpl.elements[2].item, lineend); | ||
2902 | tmpl.elements[2].indent = ""; | ||
2903 | niro | 914 | } else { |
2904 | kw = getKeywordByType(type, cfi); | ||
2905 | niro | 1696 | if (!kw) { |
2906 | fprintf(stderr, "Looking up keyword for unknown type %d\n", type); | ||
2907 | abort(); | ||
2908 | } | ||
2909 | niro | 914 | tmpl.type = type; |
2910 | tmpl.numElements = val ? 2 : 1; | ||
2911 | tmpl.elements = alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
2912 | tmpl.elements[0].item = kw->key; | ||
2913 | tmpl.elements[0].indent = alloca(2); | ||
2914 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
2915 | if (val) { | ||
2916 | tmpl.elements[1].item = (char *)val; | ||
2917 | tmpl.elements[1].indent = ""; | ||
2918 | } | ||
2919 | } | ||
2920 | |||
2921 | niro | 532 | /* The last non-empty line gives us the indention to us and the line |
2922 | to insert after. Note that comments are considered empty lines, which | ||
2923 | may not be ideal? If there are no lines or we are looking at the | ||
2924 | first line, we use defaultIndent (the first line is normally indented | ||
2925 | differently from the rest) */ | ||
2926 | niro | 914 | for (line = entry->lines, prev = NULL; line; line = line->next) { |
2927 | if (line->numElements) prev = line; | ||
2928 | /* fall back on the last line if prev isn't otherwise set */ | ||
2929 | if (!line->next && !prev) prev = line; | ||
2930 | niro | 532 | } |
2931 | |||
2932 | niro | 1696 | struct singleLine *menuEntry; |
2933 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); | ||
2934 | if (tmpl.type == LT_ENTRY_END) { | ||
2935 | if (menuEntry) | ||
2936 | tmpl.indent = menuEntry->indent; | ||
2937 | else | ||
2938 | tmpl.indent = defaultIndent ?: ""; | ||
2939 | } else if (tmpl.type != LT_MENUENTRY) { | ||
2940 | if (menuEntry) | ||
2941 | tmpl.indent = "\t"; | ||
2942 | else if (prev == entry->lines) | ||
2943 | tmpl.indent = defaultIndent ?: ""; | ||
2944 | else | ||
2945 | tmpl.indent = prev->indent; | ||
2946 | } | ||
2947 | niro | 532 | |
2948 | niro | 914 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
2949 | niro | 532 | } |
2950 | |||
2951 | void removeLine(struct singleEntry * entry, struct singleLine * line) { | ||
2952 | struct singleLine * prev; | ||
2953 | int i; | ||
2954 | |||
2955 | for (i = 0; i < line->numElements; i++) { | ||
2956 | free(line->elements[i].item); | ||
2957 | free(line->elements[i].indent); | ||
2958 | } | ||
2959 | free(line->elements); | ||
2960 | free(line->indent); | ||
2961 | |||
2962 | if (line == entry->lines) { | ||
2963 | entry->lines = line->next; | ||
2964 | } else { | ||
2965 | prev = entry->lines; | ||
2966 | while (prev->next != line) prev = prev->next; | ||
2967 | prev->next = line->next; | ||
2968 | } | ||
2969 | |||
2970 | free(line); | ||
2971 | } | ||
2972 | |||
2973 | niro | 1696 | static void requote(struct singleLine *tmplLine, struct configFileInfo * cfi) |
2974 | { | ||
2975 | struct singleLine newLine = { | ||
2976 | .indent = tmplLine->indent, | ||
2977 | .type = tmplLine->type, | ||
2978 | .next = tmplLine->next, | ||
2979 | }; | ||
2980 | int firstQuotedItem = -1; | ||
2981 | int quoteLen = 0; | ||
2982 | int j; | ||
2983 | int element = 0; | ||
2984 | char *c; | ||
2985 | |||
2986 | c = malloc(strlen(tmplLine->elements[0].item) + 1); | ||
2987 | strcpy(c, tmplLine->elements[0].item); | ||
2988 | insertElement(&newLine, c, element++, cfi); | ||
2989 | free(c); | ||
2990 | c = NULL; | ||
2991 | |||
2992 | for (j = 1; j < tmplLine->numElements; j++) { | ||
2993 | if (firstQuotedItem == -1) { | ||
2994 | quoteLen += strlen(tmplLine->elements[j].item); | ||
2995 | |||
2996 | if (isquote(tmplLine->elements[j].item[0])) { | ||
2997 | firstQuotedItem = j; | ||
2998 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
2999 | } else { | ||
3000 | c = malloc(quoteLen + 1); | ||
3001 | strcpy(c, tmplLine->elements[j].item); | ||
3002 | insertElement(&newLine, c, element++, cfi); | ||
3003 | free(c); | ||
3004 | quoteLen = 0; | ||
3005 | } | ||
3006 | } else { | ||
3007 | int itemlen = strlen(tmplLine->elements[j].item); | ||
3008 | quoteLen += itemlen; | ||
3009 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
3010 | |||
3011 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { | ||
3012 | c = malloc(quoteLen + 1); | ||
3013 | c[0] = '\0'; | ||
3014 | for (int i = firstQuotedItem; i < j+1; i++) { | ||
3015 | strcat(c, tmplLine->elements[i].item); | ||
3016 | strcat(c, tmplLine->elements[i].indent); | ||
3017 | } | ||
3018 | insertElement(&newLine, c, element++, cfi); | ||
3019 | free(c); | ||
3020 | |||
3021 | firstQuotedItem = -1; | ||
3022 | quoteLen = 0; | ||
3023 | } | ||
3024 | } | ||
3025 | } | ||
3026 | while (tmplLine->numElements) | ||
3027 | removeElement(tmplLine, 0); | ||
3028 | if (tmplLine->elements) | ||
3029 | free(tmplLine->elements); | ||
3030 | |||
3031 | tmplLine->numElements = newLine.numElements; | ||
3032 | tmplLine->elements = newLine.elements; | ||
3033 | } | ||
3034 | |||
3035 | niro | 914 | static void insertElement(struct singleLine * line, |
3036 | const char * item, int insertHere, | ||
3037 | struct configFileInfo * cfi) | ||
3038 | { | ||
3039 | struct keywordTypes * kw; | ||
3040 | char indent[2] = ""; | ||
3041 | |||
3042 | /* sanity check */ | ||
3043 | if (insertHere > line->numElements) { | ||
3044 | dbgPrintf("insertElement() adjusting insertHere from %d to %d\n", | ||
3045 | insertHere, line->numElements); | ||
3046 | insertHere = line->numElements; | ||
3047 | } | ||
3048 | |||
3049 | line->elements = realloc(line->elements, (line->numElements + 1) * | ||
3050 | sizeof(*line->elements)); | ||
3051 | memmove(&line->elements[insertHere+1], | ||
3052 | &line->elements[insertHere], | ||
3053 | (line->numElements - insertHere) * | ||
3054 | sizeof(*line->elements)); | ||
3055 | line->elements[insertHere].item = strdup(item); | ||
3056 | |||
3057 | kw = getKeywordByType(line->type, cfi); | ||
3058 | |||
3059 | if (line->numElements == 0) { | ||
3060 | indent[0] = '\0'; | ||
3061 | } else if (insertHere == 0) { | ||
3062 | indent[0] = kw->nextChar; | ||
3063 | } else if (kw->separatorChar != '\0') { | ||
3064 | indent[0] = kw->separatorChar; | ||
3065 | } else { | ||
3066 | indent[0] = ' '; | ||
3067 | } | ||
3068 | |||
3069 | if (insertHere > 0 && line->elements[insertHere-1].indent[0] == '\0') { | ||
3070 | /* move the end-of-line forward */ | ||
3071 | line->elements[insertHere].indent = | ||
3072 | line->elements[insertHere-1].indent; | ||
3073 | line->elements[insertHere-1].indent = strdup(indent); | ||
3074 | } else { | ||
3075 | line->elements[insertHere].indent = strdup(indent); | ||
3076 | } | ||
3077 | |||
3078 | line->numElements++; | ||
3079 | |||
3080 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", | ||
3081 | line->elements[0].item, | ||
3082 | line->elements[insertHere].item, | ||
3083 | line->elements[insertHere].indent, | ||
3084 | insertHere); | ||
3085 | } | ||
3086 | |||
3087 | static void removeElement(struct singleLine * line, int removeHere) { | ||
3088 | int i; | ||
3089 | |||
3090 | /* sanity check */ | ||
3091 | if (removeHere >= line->numElements) return; | ||
3092 | |||
3093 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, | ||
3094 | removeHere, line->elements[removeHere].item); | ||
3095 | |||
3096 | free(line->elements[removeHere].item); | ||
3097 | |||
3098 | if (removeHere > 1) { | ||
3099 | /* previous argument gets this argument's post-indentation */ | ||
3100 | free(line->elements[removeHere-1].indent); | ||
3101 | line->elements[removeHere-1].indent = | ||
3102 | line->elements[removeHere].indent; | ||
3103 | } else { | ||
3104 | free(line->elements[removeHere].indent); | ||
3105 | } | ||
3106 | |||
3107 | /* now collapse the array, but don't bother to realloc smaller */ | ||
3108 | for (i = removeHere; i < line->numElements - 1; i++) | ||
3109 | line->elements[i] = line->elements[i + 1]; | ||
3110 | |||
3111 | line->numElements--; | ||
3112 | } | ||
3113 | |||
3114 | niro | 532 | int argMatch(const char * one, const char * two) { |
3115 | char * first, * second; | ||
3116 | char * chptr; | ||
3117 | |||
3118 | first = strcpy(alloca(strlen(one) + 1), one); | ||
3119 | second = strcpy(alloca(strlen(two) + 1), two); | ||
3120 | |||
3121 | chptr = strchr(first, '='); | ||
3122 | if (chptr) *chptr = '\0'; | ||
3123 | |||
3124 | chptr = strchr(second, '='); | ||
3125 | if (chptr) *chptr = '\0'; | ||
3126 | |||
3127 | return strcmp(first, second); | ||
3128 | } | ||
3129 | |||
3130 | int updateActualImage(struct grubConfig * cfg, const char * image, | ||
3131 | const char * prefix, const char * addArgs, | ||
3132 | const char * removeArgs, int multibootArgs) { | ||
3133 | struct singleEntry * entry; | ||
3134 | struct singleLine * line, * rootLine; | ||
3135 | int index = 0; | ||
3136 | niro | 914 | int i, k; |
3137 | niro | 532 | const char ** newArgs, ** oldArgs; |
3138 | const char ** arg; | ||
3139 | niro | 914 | int useKernelArgs, useRoot; |
3140 | niro | 532 | int firstElement; |
3141 | niro | 1304 | int *usedElements; |
3142 | niro | 914 | int doreplace; |
3143 | niro | 532 | |
3144 | if (!image) return 0; | ||
3145 | |||
3146 | if (!addArgs) { | ||
3147 | newArgs = malloc(sizeof(*newArgs)); | ||
3148 | *newArgs = NULL; | ||
3149 | } else { | ||
3150 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { | ||
3151 | fprintf(stderr, | ||
3152 | _("grubby: error separating arguments '%s'\n"), addArgs); | ||
3153 | return 1; | ||
3154 | } | ||
3155 | } | ||
3156 | |||
3157 | if (!removeArgs) { | ||
3158 | oldArgs = malloc(sizeof(*oldArgs)); | ||
3159 | *oldArgs = NULL; | ||
3160 | } else { | ||
3161 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { | ||
3162 | fprintf(stderr, | ||
3163 | _("grubby: error separating arguments '%s'\n"), removeArgs); | ||
3164 | free(newArgs); | ||
3165 | return 1; | ||
3166 | } | ||
3167 | } | ||
3168 | |||
3169 | |||
3170 | niro | 914 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3171 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); | ||
3172 | niro | 532 | |
3173 | niro | 914 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3174 | && !multibootArgs); | ||
3175 | niro | 532 | |
3176 | niro | 914 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3177 | niro | 532 | |
3178 | niro | 914 | if (multibootArgs && !entry->multiboot) |
3179 | continue; | ||
3180 | niro | 532 | |
3181 | niro | 914 | /* Determine where to put the args. If this config supports |
3182 | * LT_KERNELARGS, use that. Otherwise use | ||
3183 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. | ||
3184 | */ | ||
3185 | if (useKernelArgs) { | ||
3186 | line = getLineByType(LT_KERNELARGS, entry->lines); | ||
3187 | if (!line) { | ||
3188 | /* no LT_KERNELARGS, need to add it */ | ||
3189 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, | ||
3190 | cfg->secondaryIndent, NULL); | ||
3191 | } | ||
3192 | firstElement = 1; | ||
3193 | niro | 532 | |
3194 | niro | 914 | } else if (multibootArgs) { |
3195 | line = getLineByType(LT_HYPER, entry->lines); | ||
3196 | if (!line) { | ||
3197 | /* a multiboot entry without LT_HYPER? */ | ||
3198 | continue; | ||
3199 | } | ||
3200 | firstElement = 2; | ||
3201 | |||
3202 | } else { | ||
3203 | niro | 2683 | line = getLineByType(LT_KERNEL|LT_MBMODULE|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines); |
3204 | niro | 914 | if (!line) { |
3205 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ | ||
3206 | continue; | ||
3207 | } | ||
3208 | firstElement = 2; | ||
3209 | niro | 532 | } |
3210 | |||
3211 | niro | 914 | /* handle the elilo case which does: |
3212 | * append="hypervisor args -- kernel args" | ||
3213 | */ | ||
3214 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { | ||
3215 | /* this is a multiboot entry, make sure there's | ||
3216 | * -- on the args line | ||
3217 | */ | ||
3218 | for (i = firstElement; i < line->numElements; i++) { | ||
3219 | if (!strcmp(line->elements[i].item, "--")) | ||
3220 | break; | ||
3221 | } | ||
3222 | if (i == line->numElements) { | ||
3223 | /* assume all existing args are kernel args, | ||
3224 | * prepend -- to make it official | ||
3225 | */ | ||
3226 | insertElement(line, "--", firstElement, cfg->cfi); | ||
3227 | i = firstElement; | ||
3228 | } | ||
3229 | if (!multibootArgs) { | ||
3230 | /* kernel args start after the -- */ | ||
3231 | firstElement = i + 1; | ||
3232 | } | ||
3233 | } else if (cfg->cfi->mbConcatArgs) { | ||
3234 | /* this is a non-multiboot entry, remove hyper args */ | ||
3235 | for (i = firstElement; i < line->numElements; i++) { | ||
3236 | if (!strcmp(line->elements[i].item, "--")) | ||
3237 | break; | ||
3238 | } | ||
3239 | if (i < line->numElements) { | ||
3240 | /* remove args up to -- */ | ||
3241 | while (strcmp(line->elements[firstElement].item, "--")) | ||
3242 | removeElement(line, firstElement); | ||
3243 | /* remove -- */ | ||
3244 | removeElement(line, firstElement); | ||
3245 | } | ||
3246 | niro | 532 | } |
3247 | |||
3248 | niro | 914 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3249 | niro | 532 | |
3250 | niro | 914 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3251 | |||
3252 | doreplace = 1; | ||
3253 | niro | 532 | for (i = firstElement; i < line->numElements; i++) { |
3254 | niro | 914 | if (multibootArgs && cfg->cfi->mbConcatArgs && |
3255 | !strcmp(line->elements[i].item, "--")) | ||
3256 | { | ||
3257 | /* reached the end of hyper args, insert here */ | ||
3258 | doreplace = 0; | ||
3259 | break; | ||
3260 | } | ||
3261 | niro | 532 | if (usedElements[i]) |
3262 | continue; | ||
3263 | if (!argMatch(line->elements[i].item, *arg)) { | ||
3264 | usedElements[i]=1; | ||
3265 | break; | ||
3266 | } | ||
3267 | } | ||
3268 | |||
3269 | niro | 914 | if (i < line->numElements && doreplace) { |
3270 | /* direct replacement */ | ||
3271 | niro | 532 | free(line->elements[i].item); |
3272 | line->elements[i].item = strdup(*arg); | ||
3273 | |||
3274 | niro | 914 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3275 | /* root= replacement */ | ||
3276 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
3277 | if (rootLine) { | ||
3278 | free(rootLine->elements[1].item); | ||
3279 | rootLine->elements[1].item = strdup(*arg + 5); | ||
3280 | niro | 532 | } else { |
3281 | niro | 914 | rootLine = addLine(entry, cfg->cfi, LT_ROOT, |
3282 | cfg->secondaryIndent, *arg + 5); | ||
3283 | niro | 532 | } |
3284 | niro | 914 | } |
3285 | niro | 532 | |
3286 | niro | 914 | else { |
3287 | /* insert/append */ | ||
3288 | insertElement(line, *arg, i, cfg->cfi); | ||
3289 | usedElements = realloc(usedElements, line->numElements * | ||
3290 | sizeof(*usedElements)); | ||
3291 | memmove(&usedElements[i + 1], &usedElements[i], | ||
3292 | line->numElements - i - 1); | ||
3293 | usedElements[i] = 1; | ||
3294 | niro | 532 | |
3295 | /* if we updated a root= here even though there is a | ||
3296 | LT_ROOT available we need to remove the LT_ROOT entry | ||
3297 | (this will happen if we switch from a device to a label) */ | ||
3298 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
3299 | niro | 914 | rootLine = getLineByType(LT_ROOT, entry->lines); |
3300 | if (rootLine) | ||
3301 | niro | 532 | removeLine(entry, rootLine); |
3302 | } | ||
3303 | } | ||
3304 | } | ||
3305 | |||
3306 | free(usedElements); | ||
3307 | |||
3308 | for (arg = oldArgs; *arg; arg++) { | ||
3309 | niro | 914 | for (i = firstElement; i < line->numElements; i++) { |
3310 | if (multibootArgs && cfg->cfi->mbConcatArgs && | ||
3311 | !strcmp(line->elements[i].item, "--")) | ||
3312 | /* reached the end of hyper args, stop here */ | ||
3313 | niro | 532 | break; |
3314 | niro | 914 | if (!argMatch(line->elements[i].item, *arg)) { |
3315 | removeElement(line, i); | ||
3316 | break; | ||
3317 | niro | 532 | } |
3318 | } | ||
3319 | niro | 914 | /* handle removing LT_ROOT line too */ |
3320 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
3321 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
3322 | if (rootLine) | ||
3323 | removeLine(entry, rootLine); | ||
3324 | } | ||
3325 | niro | 532 | } |
3326 | |||
3327 | if (line->numElements == 1) { | ||
3328 | /* don't need the line at all (note it has to be a | ||
3329 | LT_KERNELARGS for this to happen */ | ||
3330 | removeLine(entry, line); | ||
3331 | } | ||
3332 | } | ||
3333 | |||
3334 | free(newArgs); | ||
3335 | free(oldArgs); | ||
3336 | |||
3337 | return 0; | ||
3338 | } | ||
3339 | |||
3340 | int updateImage(struct grubConfig * cfg, const char * image, | ||
3341 | const char * prefix, const char * addArgs, | ||
3342 | const char * removeArgs, | ||
3343 | const char * addMBArgs, const char * removeMBArgs) { | ||
3344 | int rc = 0; | ||
3345 | |||
3346 | if (!image) return rc; | ||
3347 | |||
3348 | /* update the main args first... */ | ||
3349 | if (addArgs || removeArgs) | ||
3350 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, 0); | ||
3351 | if (rc) return rc; | ||
3352 | |||
3353 | /* and now any multiboot args */ | ||
3354 | if (addMBArgs || removeMBArgs) | ||
3355 | rc = updateActualImage(cfg, image, prefix, addMBArgs, removeMBArgs, 1); | ||
3356 | return rc; | ||
3357 | } | ||
3358 | |||
3359 | niro | 2263 | int addMBInitrd(struct grubConfig * cfg, const char *newMBKernel, |
3360 | niro | 2960 | const char * image, const char * prefix, const char * initrd, |
3361 | const char * title) { | ||
3362 | niro | 2263 | struct singleEntry * entry; |
3363 | struct singleLine * line, * kernelLine, *endLine = NULL; | ||
3364 | int index = 0; | ||
3365 | |||
3366 | if (!image) return 0; | ||
3367 | |||
3368 | niro | 2957 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3369 | niro | 2263 | kernelLine = getLineByType(LT_MBMODULE, entry->lines); |
3370 | if (!kernelLine) continue; | ||
3371 | |||
3372 | niro | 2960 | /* if title is supplied, the entry's title must match it. */ |
3373 | if (title) { | ||
3374 | niro | 2962 | char *linetitle; |
3375 | |||
3376 | niro | 2960 | line = getLineByType(LT_TITLE|LT_MENUENTRY, entry->lines); |
3377 | niro | 2962 | if (!line) |
3378 | continue; | ||
3379 | niro | 2960 | |
3380 | niro | 2980 | linetitle = extractTitle(cfg, line); |
3381 | niro | 2960 | if (!linetitle) |
3382 | continue; | ||
3383 | if (strcmp(title, linetitle)) { | ||
3384 | free(linetitle); | ||
3385 | continue; | ||
3386 | } | ||
3387 | free(linetitle); | ||
3388 | } | ||
3389 | |||
3390 | niro | 2263 | if (prefix) { |
3391 | int prefixLen = strlen(prefix); | ||
3392 | if (!strncmp(initrd, prefix, prefixLen)) | ||
3393 | initrd += prefixLen; | ||
3394 | } | ||
3395 | endLine = getLineByType(LT_ENTRY_END, entry->lines); | ||
3396 | if (endLine) | ||
3397 | removeLine(entry, endLine); | ||
3398 | line = addLine(entry, cfg->cfi, preferredLineType(LT_MBMODULE,cfg->cfi), | ||
3399 | kernelLine->indent, initrd); | ||
3400 | if (!line) | ||
3401 | return 1; | ||
3402 | if (endLine) { | ||
3403 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); | ||
3404 | if (!line) | ||
3405 | return 1; | ||
3406 | } | ||
3407 | |||
3408 | break; | ||
3409 | } | ||
3410 | |||
3411 | return 0; | ||
3412 | } | ||
3413 | |||
3414 | niro | 1156 | int updateInitrd(struct grubConfig * cfg, const char * image, |
3415 | niro | 2960 | const char * prefix, const char * initrd, const char * title) { |
3416 | niro | 1156 | struct singleEntry * entry; |
3417 | niro | 1696 | struct singleLine * line, * kernelLine, *endLine = NULL; |
3418 | niro | 1156 | int index = 0; |
3419 | |||
3420 | if (!image) return 0; | ||
3421 | |||
3422 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { | ||
3423 | niro | 2683 | kernelLine = getLineByType(LT_KERNEL|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines); |
3424 | niro | 1156 | if (!kernelLine) continue; |
3425 | |||
3426 | niro | 2960 | /* if title is supplied, the entry's title must match it. */ |
3427 | if (title) { | ||
3428 | niro | 2962 | char *linetitle; |
3429 | |||
3430 | niro | 2960 | line = getLineByType(LT_TITLE|LT_MENUENTRY, entry->lines); |
3431 | niro | 2962 | if (!line) |
3432 | continue; | ||
3433 | niro | 2960 | |
3434 | niro | 2980 | linetitle = extractTitle(cfg, line); |
3435 | niro | 2960 | if (!linetitle) |
3436 | continue; | ||
3437 | if (strcmp(title, linetitle)) { | ||
3438 | free(linetitle); | ||
3439 | continue; | ||
3440 | } | ||
3441 | free(linetitle); | ||
3442 | } | ||
3443 | |||
3444 | niro | 2683 | line = getLineByType(LT_INITRD|LT_INITRD_EFI|LT_INITRD_16, entry->lines); |
3445 | niro | 1156 | if (line) |
3446 | removeLine(entry, line); | ||
3447 | if (prefix) { | ||
3448 | int prefixLen = strlen(prefix); | ||
3449 | if (!strncmp(initrd, prefix, prefixLen)) | ||
3450 | initrd += prefixLen; | ||
3451 | } | ||
3452 | niro | 1696 | endLine = getLineByType(LT_ENTRY_END, entry->lines); |
3453 | if (endLine) | ||
3454 | removeLine(entry, endLine); | ||
3455 | niro | 2683 | enum lineType_e lt; |
3456 | switch(kernelLine->type) { | ||
3457 | case LT_KERNEL: | ||
3458 | lt = LT_INITRD; | ||
3459 | break; | ||
3460 | case LT_KERNEL_EFI: | ||
3461 | lt = LT_INITRD_EFI; | ||
3462 | break; | ||
3463 | case LT_KERNEL_16: | ||
3464 | lt = LT_INITRD_16; | ||
3465 | break; | ||
3466 | default: | ||
3467 | lt = preferredLineType(LT_INITRD, cfg->cfi); | ||
3468 | } | ||
3469 | line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd); | ||
3470 | niro | 1696 | if (!line) |
3471 | return 1; | ||
3472 | if (endLine) { | ||
3473 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); | ||
3474 | if (!line) | ||
3475 | return 1; | ||
3476 | } | ||
3477 | |||
3478 | niro | 1156 | break; |
3479 | } | ||
3480 | |||
3481 | return 0; | ||
3482 | } | ||
3483 | |||
3484 | niro | 532 | int checkDeviceBootloader(const char * device, const unsigned char * boot) { |
3485 | int fd; | ||
3486 | unsigned char bootSect[512]; | ||
3487 | int offset; | ||
3488 | |||
3489 | fd = open(device, O_RDONLY); | ||
3490 | if (fd < 0) { | ||
3491 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
3492 | device, strerror(errno)); | ||
3493 | return 1; | ||
3494 | } | ||
3495 | |||
3496 | if (read(fd, bootSect, 512) != 512) { | ||
3497 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
3498 | device, strerror(errno)); | ||
3499 | return 1; | ||
3500 | } | ||
3501 | close(fd); | ||
3502 | |||
3503 | /* first three bytes should match, a jmp short should be in there */ | ||
3504 | if (memcmp(boot, bootSect, 3)) | ||
3505 | return 0; | ||
3506 | |||
3507 | niro | 1718 | if (boot[1] == JMP_SHORT_OPCODE) { |
3508 | niro | 532 | offset = boot[2] + 2; |
3509 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { | ||
3510 | offset = (boot[3] << 8) + boot[2] + 2; | ||
3511 | niro | 1718 | } else if (boot[0] == JMP_SHORT_OPCODE) { |
3512 | offset = boot[1] + 2; | ||
3513 | /* | ||
3514 | * it looks like grub, when copying stage1 into the mbr, patches stage1 | ||
3515 | * right after the JMP location, replacing other instructions such as | ||
3516 | * JMPs for NOOPs. So, relax the check a little bit by skipping those | ||
3517 | * different bytes. | ||
3518 | */ | ||
3519 | if ((bootSect[offset + 1] == NOOP_OPCODE) | ||
3520 | && (bootSect[offset + 2] == NOOP_OPCODE)) { | ||
3521 | offset = offset + 3; | ||
3522 | } | ||
3523 | niro | 532 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { |
3524 | offset = (boot[2] << 8) + boot[1] + 2; | ||
3525 | } else { | ||
3526 | return 0; | ||
3527 | } | ||
3528 | |||
3529 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) | ||
3530 | return 0; | ||
3531 | |||
3532 | return 2; | ||
3533 | } | ||
3534 | |||
3535 | int checkLiloOnRaid(char * mdDev, const unsigned char * boot) { | ||
3536 | int fd; | ||
3537 | char buf[65536]; | ||
3538 | char * end; | ||
3539 | char * chptr; | ||
3540 | char * chptr2; | ||
3541 | int rc; | ||
3542 | |||
3543 | /* it's on raid; we need to parse /proc/mdstat and check all of the | ||
3544 | *raw* devices listed in there */ | ||
3545 | |||
3546 | if (!strncmp(mdDev, "/dev/", 5)) | ||
3547 | mdDev += 5; | ||
3548 | |||
3549 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { | ||
3550 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), | ||
3551 | strerror(errno)); | ||
3552 | return 2; | ||
3553 | } | ||
3554 | |||
3555 | rc = read(fd, buf, sizeof(buf) - 1); | ||
3556 | if (rc < 0 || rc == (sizeof(buf) - 1)) { | ||
3557 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), | ||
3558 | strerror(errno)); | ||
3559 | close(fd); | ||
3560 | return 2; | ||
3561 | } | ||
3562 | close(fd); | ||
3563 | buf[rc] = '\0'; | ||
3564 | |||
3565 | chptr = buf; | ||
3566 | while (*chptr) { | ||
3567 | end = strchr(chptr, '\n'); | ||
3568 | if (!end) break; | ||
3569 | *end = '\0'; | ||
3570 | |||
3571 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && | ||
3572 | chptr[strlen(mdDev)] == ' ') { | ||
3573 | |||
3574 | /* found the device */ | ||
3575 | while (*chptr && *chptr != ':') chptr++; | ||
3576 | chptr++; | ||
3577 | while (*chptr && isspace(*chptr)) chptr++; | ||
3578 | |||
3579 | /* skip the "active" bit */ | ||
3580 | while (*chptr && !isspace(*chptr)) chptr++; | ||
3581 | while (*chptr && isspace(*chptr)) chptr++; | ||
3582 | |||
3583 | /* skip the raid level */ | ||
3584 | while (*chptr && !isspace(*chptr)) chptr++; | ||
3585 | while (*chptr && isspace(*chptr)) chptr++; | ||
3586 | |||
3587 | /* everything else is partition stuff */ | ||
3588 | while (*chptr) { | ||
3589 | chptr2 = chptr; | ||
3590 | while (*chptr2 && *chptr2 != '[') chptr2++; | ||
3591 | if (!*chptr2) break; | ||
3592 | |||
3593 | /* yank off the numbers at the end */ | ||
3594 | chptr2--; | ||
3595 | while (isdigit(*chptr2) && chptr2 > chptr) chptr2--; | ||
3596 | chptr2++; | ||
3597 | *chptr2 = '\0'; | ||
3598 | |||
3599 | /* Better, now we need the /dev/ back. We're done with | ||
3600 | * everything before this point, so we can just put | ||
3601 | * the /dev/ part there. There will always be room. */ | ||
3602 | memcpy(chptr - 5, "/dev/", 5); | ||
3603 | rc = checkDeviceBootloader(chptr - 5, boot); | ||
3604 | if (rc != 2) { | ||
3605 | return rc; | ||
3606 | } | ||
3607 | |||
3608 | chptr = chptr2 + 1; | ||
3609 | /* skip the [11] bit */ | ||
3610 | while (*chptr && !isspace(*chptr)) chptr++; | ||
3611 | /* and move to the next one */ | ||
3612 | while (*chptr && isspace(*chptr)) chptr++; | ||
3613 | } | ||
3614 | |||
3615 | /* we're good to go */ | ||
3616 | return 2; | ||
3617 | } | ||
3618 | |||
3619 | chptr = end + 1; | ||
3620 | } | ||
3621 | |||
3622 | fprintf(stderr, | ||
3623 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), | ||
3624 | mdDev); | ||
3625 | return 0; | ||
3626 | } | ||
3627 | |||
3628 | int checkForLilo(struct grubConfig * config) { | ||
3629 | int fd; | ||
3630 | unsigned char boot[512]; | ||
3631 | struct singleLine * line; | ||
3632 | |||
3633 | for (line = config->theLines; line; line = line->next) | ||
3634 | if (line->type == LT_BOOT) break; | ||
3635 | |||
3636 | if (!line) { | ||
3637 | fprintf(stderr, | ||
3638 | _("grubby: no boot line found in lilo configuration\n")); | ||
3639 | return 1; | ||
3640 | } | ||
3641 | |||
3642 | if (line->numElements != 2) return 1; | ||
3643 | |||
3644 | fd = open("/boot/boot.b", O_RDONLY); | ||
3645 | if (fd < 0) { | ||
3646 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
3647 | "/boot/boot.b", strerror(errno)); | ||
3648 | return 1; | ||
3649 | } | ||
3650 | |||
3651 | if (read(fd, boot, 512) != 512) { | ||
3652 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
3653 | "/boot/boot.b", strerror(errno)); | ||
3654 | return 1; | ||
3655 | } | ||
3656 | close(fd); | ||
3657 | |||
3658 | if (!strncmp("/dev/md", line->elements[1].item, 7)) | ||
3659 | return checkLiloOnRaid(line->elements[1].item, boot); | ||
3660 | |||
3661 | return checkDeviceBootloader(line->elements[1].item, boot); | ||
3662 | } | ||
3663 | |||
3664 | niro | 1696 | int checkForGrub2(struct grubConfig * config) { |
3665 | niro | 1714 | if (!access("/etc/grub.d/", R_OK)) |
3666 | niro | 1696 | return 2; |
3667 | |||
3668 | return 1; | ||
3669 | } | ||
3670 | |||
3671 | niro | 532 | int checkForGrub(struct grubConfig * config) { |
3672 | int fd; | ||
3673 | unsigned char bootSect[512]; | ||
3674 | char * boot; | ||
3675 | niro | 1851 | int onSuse = isSuseSystem(); |
3676 | niro | 532 | |
3677 | niro | 1851 | |
3678 | if (onSuse) { | ||
3679 | if (parseSuseGrubConf(NULL, &boot)) | ||
3680 | return 0; | ||
3681 | niro | 1850 | } else { |
3682 | niro | 1851 | if (parseSysconfigGrub(NULL, &boot)) |
3683 | return 0; | ||
3684 | niro | 1850 | } |
3685 | niro | 532 | |
3686 | /* assume grub is not installed -- not an error condition */ | ||
3687 | if (!boot) | ||
3688 | return 0; | ||
3689 | |||
3690 | fd = open("/boot/grub/stage1", O_RDONLY); | ||
3691 | if (fd < 0) | ||
3692 | /* this doesn't exist if grub hasn't been installed */ | ||
3693 | return 0; | ||
3694 | |||
3695 | if (read(fd, bootSect, 512) != 512) { | ||
3696 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
3697 | "/boot/grub/stage1", strerror(errno)); | ||
3698 | niro | 914 | close(fd); |
3699 | niro | 532 | return 1; |
3700 | } | ||
3701 | close(fd); | ||
3702 | |||
3703 | niro | 1851 | /* The more elaborate checks do not work on SuSE. The checks done |
3704 | * seem to be reasonble (at least for now), so just return success | ||
3705 | */ | ||
3706 | if (onSuse) | ||
3707 | niro | 1850 | return 2; |
3708 | niro | 1851 | |
3709 | return checkDeviceBootloader(boot, bootSect); | ||
3710 | niro | 532 | } |
3711 | |||
3712 | niro | 914 | int checkForExtLinux(struct grubConfig * config) { |
3713 | int fd; | ||
3714 | unsigned char bootSect[512]; | ||
3715 | char * boot; | ||
3716 | char executable[] = "/boot/extlinux/extlinux"; | ||
3717 | |||
3718 | printf("entered: checkForExtLinux()\n"); | ||
3719 | |||
3720 | if (parseSysconfigGrub(NULL, &boot)) | ||
3721 | return 0; | ||
3722 | |||
3723 | /* assume grub is not installed -- not an error condition */ | ||
3724 | if (!boot) | ||
3725 | return 0; | ||
3726 | |||
3727 | fd = open(executable, O_RDONLY); | ||
3728 | if (fd < 0) | ||
3729 | /* this doesn't exist if grub hasn't been installed */ | ||
3730 | return 0; | ||
3731 | |||
3732 | if (read(fd, bootSect, 512) != 512) { | ||
3733 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
3734 | executable, strerror(errno)); | ||
3735 | return 1; | ||
3736 | } | ||
3737 | close(fd); | ||
3738 | |||
3739 | return checkDeviceBootloader(boot, bootSect); | ||
3740 | } | ||
3741 | |||
3742 | niro | 1853 | int checkForYaboot(struct grubConfig * config) { |
3743 | /* | ||
3744 | * This is a simplistic check that we consider good enough for own puporses | ||
3745 | * | ||
3746 | * If we were to properly check if yaboot is *installed* we'd need to: | ||
3747 | * 1) get the system boot device (LT_BOOT) | ||
3748 | * 2) considering it's a raw filesystem, check if the yaboot binary matches | ||
3749 | * the content on the boot device | ||
3750 | * 3) if not, copy the binary to a temporary file and run "addnote" on it | ||
3751 | * 4) check again if binary and boot device contents match | ||
3752 | */ | ||
3753 | if (!access("/etc/yaboot.conf", R_OK)) | ||
3754 | return 2; | ||
3755 | |||
3756 | return 1; | ||
3757 | } | ||
3758 | |||
3759 | niro | 1854 | int checkForElilo(struct grubConfig * config) { |
3760 | if (!access("/etc/elilo.conf", R_OK)) | ||
3761 | return 2; | ||
3762 | |||
3763 | return 1; | ||
3764 | } | ||
3765 | |||
3766 | niro | 532 | static char * getRootSpecifier(char * str) { |
3767 | char * idx, * rootspec = NULL; | ||
3768 | |||
3769 | if (*str == '(') { | ||
3770 | idx = rootspec = strdup(str); | ||
3771 | while(*idx && (*idx != ')') && (!isspace(*idx))) idx++; | ||
3772 | *(++idx) = '\0'; | ||
3773 | } | ||
3774 | return rootspec; | ||
3775 | } | ||
3776 | |||
3777 | niro | 914 | static char * getInitrdVal(struct grubConfig * config, |
3778 | const char * prefix, struct singleLine *tmplLine, | ||
3779 | const char * newKernelInitrd, | ||
3780 | niro | 1844 | const char ** extraInitrds, int extraInitrdCount) |
3781 | niro | 914 | { |
3782 | char *initrdVal, *end; | ||
3783 | int i; | ||
3784 | size_t totalSize; | ||
3785 | size_t prefixLen; | ||
3786 | char separatorChar; | ||
3787 | |||
3788 | prefixLen = strlen(prefix); | ||
3789 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */; | ||
3790 | |||
3791 | for (i = 0; i < extraInitrdCount; i++) { | ||
3792 | totalSize += sizeof(separatorChar); | ||
3793 | totalSize += strlen(extraInitrds[i]) - prefixLen; | ||
3794 | } | ||
3795 | |||
3796 | initrdVal = end = malloc(totalSize); | ||
3797 | |||
3798 | end = stpcpy (end, newKernelInitrd + prefixLen); | ||
3799 | |||
3800 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; | ||
3801 | for (i = 0; i < extraInitrdCount; i++) { | ||
3802 | const char *extraInitrd; | ||
3803 | int j; | ||
3804 | |||
3805 | extraInitrd = extraInitrds[i] + prefixLen; | ||
3806 | /* Don't add entries that are already there */ | ||
3807 | if (tmplLine != NULL) { | ||
3808 | for (j = 2; j < tmplLine->numElements; j++) | ||
3809 | if (strcmp(extraInitrd, tmplLine->elements[j].item) == 0) | ||
3810 | break; | ||
3811 | |||
3812 | if (j != tmplLine->numElements) | ||
3813 | continue; | ||
3814 | } | ||
3815 | |||
3816 | *end++ = separatorChar; | ||
3817 | end = stpcpy(end, extraInitrd); | ||
3818 | } | ||
3819 | |||
3820 | return initrdVal; | ||
3821 | } | ||
3822 | |||
3823 | niro | 532 | int addNewKernel(struct grubConfig * config, struct singleEntry * template, |
3824 | const char * prefix, | ||
3825 | niro | 1844 | const char * newKernelPath, const char * newKernelTitle, |
3826 | const char * newKernelArgs, const char * newKernelInitrd, | ||
3827 | const char ** extraInitrds, int extraInitrdCount, | ||
3828 | niro | 2685 | const char * newMBKernel, const char * newMBKernelArgs, |
3829 | const char * newDevTreePath) { | ||
3830 | niro | 532 | struct singleEntry * new; |
3831 | niro | 914 | struct singleLine * newLine = NULL, * tmplLine = NULL, * masterLine = NULL; |
3832 | niro | 532 | int needs; |
3833 | char * chptr; | ||
3834 | |||
3835 | if (!newKernelPath) return 0; | ||
3836 | |||
3837 | /* if the newKernelTitle is too long silently munge it into something | ||
3838 | * we can live with. truncating is first check, then we'll just mess with | ||
3839 | * it until it looks better */ | ||
3840 | if (config->cfi->maxTitleLength && | ||
3841 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { | ||
3842 | char * buf = alloca(config->cfi->maxTitleLength + 7); | ||
3843 | char * numBuf = alloca(config->cfi->maxTitleLength + 1); | ||
3844 | int i = 1; | ||
3845 | |||
3846 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, newKernelTitle); | ||
3847 | while (findEntryByPath(config, buf, NULL, NULL)) { | ||
3848 | sprintf(numBuf, "%d", i++); | ||
3849 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); | ||
3850 | } | ||
3851 | |||
3852 | newKernelTitle = buf + 6; | ||
3853 | } | ||
3854 | |||
3855 | new = malloc(sizeof(*new)); | ||
3856 | new->skip = 0; | ||
3857 | new->multiboot = 0; | ||
3858 | new->next = config->entries; | ||
3859 | new->lines = NULL; | ||
3860 | config->entries = new; | ||
3861 | |||
3862 | /* copy/update from the template */ | ||
3863 | niro | 914 | needs = NEED_KERNEL | NEED_TITLE; |
3864 | if (newKernelInitrd) | ||
3865 | needs |= NEED_INITRD; | ||
3866 | niro | 532 | if (newMBKernel) { |
3867 | niro | 914 | needs |= NEED_MB; |
3868 | niro | 532 | new->multiboot = 1; |
3869 | } | ||
3870 | niro | 2685 | if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi)) |
3871 | needs |= NEED_DEVTREE; | ||
3872 | niro | 532 | |
3873 | if (template) { | ||
3874 | niro | 914 | for (masterLine = template->lines; |
3875 | masterLine && (tmplLine = lineDup(masterLine)); | ||
3876 | lineFree(tmplLine), masterLine = masterLine->next) | ||
3877 | { | ||
3878 | dbgPrintf("addNewKernel processing %d\n", tmplLine->type); | ||
3879 | niro | 532 | |
3880 | /* skip comments */ | ||
3881 | chptr = tmplLine->indent; | ||
3882 | while (*chptr && isspace(*chptr)) chptr++; | ||
3883 | if (*chptr == '#') continue; | ||
3884 | |||
3885 | niro | 1940 | if (iskernel(tmplLine->type) && tmplLine->numElements >= 2) { |
3886 | niro | 914 | if (!template->multiboot && (needs & NEED_MB)) { |
3887 | /* it's not a multiboot template and this is the kernel | ||
3888 | * line. Try to be intelligent about inserting the | ||
3889 | * hypervisor at the same time. | ||
3890 | */ | ||
3891 | if (config->cfi->mbHyperFirst) { | ||
3892 | /* insert the hypervisor first */ | ||
3893 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3894 | tmplLine->indent, | ||
3895 | newMBKernel + strlen(prefix)); | ||
3896 | /* set up for adding the kernel line */ | ||
3897 | free(tmplLine->indent); | ||
3898 | tmplLine->indent = strdup(config->secondaryIndent); | ||
3899 | needs &= ~NEED_MB; | ||
3900 | } | ||
3901 | if (needs & NEED_KERNEL) { | ||
3902 | /* use addLineTmpl to preserve line elements, | ||
3903 | * otherwise we could just call addLine. Unfortunately | ||
3904 | * this means making some changes to the template | ||
3905 | * such as the indent change above and the type | ||
3906 | * change below. | ||
3907 | */ | ||
3908 | struct keywordTypes * mbm_kw = | ||
3909 | getKeywordByType(LT_MBMODULE, config->cfi); | ||
3910 | if (mbm_kw) { | ||
3911 | tmplLine->type = LT_MBMODULE; | ||
3912 | free(tmplLine->elements[0].item); | ||
3913 | tmplLine->elements[0].item = strdup(mbm_kw->key); | ||
3914 | } | ||
3915 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3916 | newKernelPath + strlen(prefix), config->cfi); | ||
3917 | needs &= ~NEED_KERNEL; | ||
3918 | } | ||
3919 | if (needs & NEED_MB) { /* !mbHyperFirst */ | ||
3920 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
3921 | config->secondaryIndent, | ||
3922 | newMBKernel + strlen(prefix)); | ||
3923 | needs &= ~NEED_MB; | ||
3924 | } | ||
3925 | } else if (needs & NEED_KERNEL) { | ||
3926 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3927 | newKernelPath + strlen(prefix), config->cfi); | ||
3928 | needs &= ~NEED_KERNEL; | ||
3929 | } | ||
3930 | niro | 532 | |
3931 | niro | 914 | } else if (tmplLine->type == LT_HYPER && |
3932 | tmplLine->numElements >= 2) { | ||
3933 | if (needs & NEED_MB) { | ||
3934 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3935 | newMBKernel + strlen(prefix), config->cfi); | ||
3936 | needs &= ~NEED_MB; | ||
3937 | } | ||
3938 | niro | 532 | |
3939 | niro | 914 | } else if (tmplLine->type == LT_MBMODULE && |
3940 | tmplLine->numElements >= 2) { | ||
3941 | if (new->multiboot) { | ||
3942 | if (needs & NEED_KERNEL) { | ||
3943 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3944 | newKernelPath + | ||
3945 | strlen(prefix), config->cfi); | ||
3946 | needs &= ~NEED_KERNEL; | ||
3947 | } else if (config->cfi->mbInitRdIsModule && | ||
3948 | (needs & NEED_INITRD)) { | ||
3949 | char *initrdVal; | ||
3950 | initrdVal = getInitrdVal(config, prefix, tmplLine, | ||
3951 | newKernelInitrd, extraInitrds, | ||
3952 | extraInitrdCount); | ||
3953 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
3954 | initrdVal, config->cfi); | ||
3955 | free(initrdVal); | ||
3956 | needs &= ~NEED_INITRD; | ||
3957 | } | ||
3958 | } else if (needs & NEED_KERNEL) { | ||
3959 | /* template is multi but new is not, | ||
3960 | * insert the kernel in the first module slot | ||
3961 | */ | ||
3962 | niro | 1940 | tmplLine->type = preferredLineType(LT_KERNEL, config->cfi); |
3963 | niro | 914 | free(tmplLine->elements[0].item); |
3964 | tmplLine->elements[0].item = | ||
3965 | niro | 1940 | strdup(getKeywordByType(tmplLine->type, |
3966 | config->cfi)->key); | ||
3967 | niro | 914 | newLine = addLineTmpl(new, tmplLine, newLine, |
3968 | niro | 1940 | newKernelPath + strlen(prefix), |
3969 | config->cfi); | ||
3970 | niro | 914 | needs &= ~NEED_KERNEL; |
3971 | } else if (needs & NEED_INITRD) { | ||
3972 | char *initrdVal; | ||
3973 | /* template is multi but new is not, | ||
3974 | * insert the initrd in the second module slot | ||
3975 | */ | ||
3976 | niro | 1940 | tmplLine->type = preferredLineType(LT_INITRD, config->cfi); |
3977 | niro | 914 | free(tmplLine->elements[0].item); |
3978 | tmplLine->elements[0].item = | ||
3979 | niro | 1940 | strdup(getKeywordByType(tmplLine->type, |
3980 | config->cfi)->key); | ||
3981 | niro | 914 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); |
3982 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
3983 | free(initrdVal); | ||
3984 | needs &= ~NEED_INITRD; | ||
3985 | } | ||
3986 | niro | 532 | |
3987 | niro | 1940 | } else if (isinitrd(tmplLine->type) && tmplLine->numElements >= 2) { |
3988 | niro | 914 | if (needs & NEED_INITRD && |
3989 | new->multiboot && !template->multiboot && | ||
3990 | config->cfi->mbInitRdIsModule) { | ||
3991 | /* make sure we don't insert the module initrd | ||
3992 | * before the module kernel... if we don't do it here, | ||
3993 | * it will be inserted following the template. | ||
3994 | */ | ||
3995 | if (!needs & NEED_KERNEL) { | ||
3996 | char *initrdVal; | ||
3997 | |||
3998 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
3999 | newLine = addLine(new, config->cfi, LT_MBMODULE, | ||
4000 | config->secondaryIndent, | ||
4001 | initrdVal); | ||
4002 | free(initrdVal); | ||
4003 | needs &= ~NEED_INITRD; | ||
4004 | } | ||
4005 | } else if (needs & NEED_INITRD) { | ||
4006 | char *initrdVal; | ||
4007 | initrdVal = getInitrdVal(config, prefix, tmplLine, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
4008 | newLine = addLineTmpl(new, tmplLine, newLine, initrdVal, config->cfi); | ||
4009 | free(initrdVal); | ||
4010 | needs &= ~NEED_INITRD; | ||
4011 | niro | 532 | } |
4012 | |||
4013 | niro | 1696 | } else if (tmplLine->type == LT_MENUENTRY && |
4014 | (needs & NEED_TITLE)) { | ||
4015 | requote(tmplLine, config->cfi); | ||
4016 | char *nkt = malloc(strlen(newKernelTitle)+3); | ||
4017 | strcpy(nkt, "'"); | ||
4018 | strcat(nkt, newKernelTitle); | ||
4019 | strcat(nkt, "'"); | ||
4020 | newLine = addLineTmpl(new, tmplLine, newLine, nkt, config->cfi); | ||
4021 | free(nkt); | ||
4022 | needs &= ~NEED_TITLE; | ||
4023 | niro | 532 | } else if (tmplLine->type == LT_TITLE && |
4024 | niro | 914 | (needs & NEED_TITLE)) { |
4025 | if (tmplLine->numElements >= 2) { | ||
4026 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
4027 | newKernelTitle, config->cfi); | ||
4028 | needs &= ~NEED_TITLE; | ||
4029 | } else if (tmplLine->numElements == 1 && | ||
4030 | config->cfi->titleBracketed) { | ||
4031 | /* addLineTmpl doesn't handle titleBracketed */ | ||
4032 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
4033 | tmplLine->indent, newKernelTitle); | ||
4034 | needs &= ~NEED_TITLE; | ||
4035 | } | ||
4036 | niro | 1696 | } else if (tmplLine->type == LT_ECHO) { |
4037 | requote(tmplLine, config->cfi); | ||
4038 | niro | 1722 | static const char *prefix = "'Loading "; |
4039 | niro | 1696 | if (tmplLine->numElements > 1 && |
4040 | niro | 1722 | strstr(tmplLine->elements[1].item, prefix) && |
4041 | niro | 1940 | masterLine->next && |
4042 | iskernel(masterLine->next->type)) { | ||
4043 | niro | 1696 | char *newTitle = malloc(strlen(prefix) + |
4044 | strlen(newKernelTitle) + 2); | ||
4045 | niro | 532 | |
4046 | niro | 1696 | strcpy(newTitle, prefix); |
4047 | strcat(newTitle, newKernelTitle); | ||
4048 | strcat(newTitle, "'"); | ||
4049 | newLine = addLine(new, config->cfi, LT_ECHO, | ||
4050 | tmplLine->indent, newTitle); | ||
4051 | free(newTitle); | ||
4052 | } else { | ||
4053 | /* pass through other lines from the template */ | ||
4054 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, | ||
4055 | config->cfi); | ||
4056 | } | ||
4057 | niro | 2685 | } else if (tmplLine->type == LT_DEVTREE && |
4058 | tmplLine->numElements == 2 && newDevTreePath) { | ||
4059 | newLine = addLineTmpl(new, tmplLine, newLine, | ||
4060 | newDevTreePath + strlen(prefix), | ||
4061 | config->cfi); | ||
4062 | needs &= ~NEED_DEVTREE; | ||
4063 | } else if (tmplLine->type == LT_ENTRY_END && needs & NEED_DEVTREE) { | ||
4064 | const char *ndtp = newDevTreePath; | ||
4065 | if (!strncmp(newDevTreePath, prefix, strlen(prefix))) | ||
4066 | ndtp += strlen(prefix); | ||
4067 | newLine = addLine(new, config->cfi, LT_DEVTREE, | ||
4068 | config->secondaryIndent, | ||
4069 | ndtp); | ||
4070 | needs &= ~NEED_DEVTREE; | ||
4071 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi); | ||
4072 | niro | 914 | } else { |
4073 | /* pass through other lines from the template */ | ||
4074 | newLine = addLineTmpl(new, tmplLine, newLine, NULL, config->cfi); | ||
4075 | } | ||
4076 | niro | 532 | } |
4077 | niro | 914 | |
4078 | niro | 532 | } else { |
4079 | niro | 914 | /* don't have a template, so start the entry with the |
4080 | * appropriate starting line | ||
4081 | */ | ||
4082 | niro | 1693 | switch (config->cfi->entryStart) { |
4083 | niro | 914 | case LT_KERNEL: |
4084 | niro | 1940 | case LT_KERNEL_EFI: |
4085 | niro | 2683 | case LT_KERNEL_16: |
4086 | niro | 914 | if (new->multiboot && config->cfi->mbHyperFirst) { |
4087 | /* fall through to LT_HYPER */ | ||
4088 | } else { | ||
4089 | niro | 1940 | newLine = addLine(new, config->cfi, |
4090 | preferredLineType(LT_KERNEL, config->cfi), | ||
4091 | niro | 914 | config->primaryIndent, |
4092 | newKernelPath + strlen(prefix)); | ||
4093 | needs &= ~NEED_KERNEL; | ||
4094 | break; | ||
4095 | } | ||
4096 | |||
4097 | case LT_HYPER: | ||
4098 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
4099 | config->primaryIndent, | ||
4100 | newMBKernel + strlen(prefix)); | ||
4101 | needs &= ~NEED_MB; | ||
4102 | niro | 532 | break; |
4103 | |||
4104 | niro | 1696 | case LT_MENUENTRY: { |
4105 | char *nkt = malloc(strlen(newKernelTitle)+3); | ||
4106 | strcpy(nkt, "'"); | ||
4107 | strcat(nkt, newKernelTitle); | ||
4108 | strcat(nkt, "'"); | ||
4109 | newLine = addLine(new, config->cfi, LT_MENUENTRY, | ||
4110 | config->primaryIndent, nkt); | ||
4111 | free(nkt); | ||
4112 | needs &= ~NEED_TITLE; | ||
4113 | needs |= NEED_END; | ||
4114 | break; | ||
4115 | } | ||
4116 | niro | 914 | case LT_TITLE: |
4117 | if( useextlinuxmenu != 0 ){ // We just need useextlinuxmenu to not be zero (set above) | ||
4118 | char * templabel; | ||
4119 | int x = 0, y = 0; | ||
4120 | |||
4121 | templabel = strdup(newKernelTitle); | ||
4122 | while( templabel[x]){ | ||
4123 | if( templabel[x] == ' ' ){ | ||
4124 | y = x; | ||
4125 | while( templabel[y] ){ | ||
4126 | templabel[y] = templabel[y+1]; | ||
4127 | y++; | ||
4128 | } | ||
4129 | } | ||
4130 | x++; | ||
4131 | } | ||
4132 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
4133 | config->primaryIndent, templabel); | ||
4134 | free(templabel); | ||
4135 | }else{ | ||
4136 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
4137 | config->primaryIndent, newKernelTitle); | ||
4138 | } | ||
4139 | needs &= ~NEED_TITLE; | ||
4140 | break; | ||
4141 | |||
4142 | default: | ||
4143 | abort(); | ||
4144 | niro | 532 | } |
4145 | } | ||
4146 | |||
4147 | niro | 2709 | struct singleLine *endLine = NULL; |
4148 | endLine = getLineByType(LT_ENTRY_END, new->lines); | ||
4149 | if (endLine) { | ||
4150 | removeLine(new, endLine); | ||
4151 | needs |= NEED_END; | ||
4152 | } | ||
4153 | |||
4154 | niro | 914 | /* add the remainder of the lines, i.e. those that either |
4155 | * weren't present in the template, or in the case of no template, | ||
4156 | niro | 1693 | * all the lines following the entryStart. |
4157 | niro | 914 | */ |
4158 | if (needs & NEED_TITLE) { | ||
4159 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
4160 | config->secondaryIndent, | ||
4161 | newKernelTitle); | ||
4162 | needs &= ~NEED_TITLE; | ||
4163 | niro | 532 | } |
4164 | niro | 914 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { |
4165 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
4166 | config->secondaryIndent, | ||
4167 | newMBKernel + strlen(prefix)); | ||
4168 | needs &= ~NEED_MB; | ||
4169 | } | ||
4170 | if (needs & NEED_KERNEL) { | ||
4171 | newLine = addLine(new, config->cfi, | ||
4172 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
4173 | niro | 1940 | config->cfi)) |
4174 | ? LT_MBMODULE | ||
4175 | : preferredLineType(LT_KERNEL, config->cfi), | ||
4176 | niro | 914 | config->secondaryIndent, |
4177 | newKernelPath + strlen(prefix)); | ||
4178 | needs &= ~NEED_KERNEL; | ||
4179 | } | ||
4180 | if (needs & NEED_MB) { | ||
4181 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
4182 | config->secondaryIndent, | ||
4183 | newMBKernel + strlen(prefix)); | ||
4184 | needs &= ~NEED_MB; | ||
4185 | } | ||
4186 | if (needs & NEED_INITRD) { | ||
4187 | char *initrdVal; | ||
4188 | initrdVal = getInitrdVal(config, prefix, NULL, newKernelInitrd, extraInitrds, extraInitrdCount); | ||
4189 | newLine = addLine(new, config->cfi, | ||
4190 | (new->multiboot && getKeywordByType(LT_MBMODULE, | ||
4191 | niro | 1940 | config->cfi)) |
4192 | ? LT_MBMODULE | ||
4193 | : preferredLineType(LT_INITRD, config->cfi), | ||
4194 | niro | 914 | config->secondaryIndent, |
4195 | initrdVal); | ||
4196 | free(initrdVal); | ||
4197 | needs &= ~NEED_INITRD; | ||
4198 | } | ||
4199 | niro | 2685 | if (needs & NEED_DEVTREE) { |
4200 | newLine = addLine(new, config->cfi, LT_DEVTREE, | ||
4201 | config->secondaryIndent, | ||
4202 | newDevTreePath); | ||
4203 | needs &= ~NEED_DEVTREE; | ||
4204 | } | ||
4205 | |||
4206 | /* NEEDS_END must be last on bootloaders that need it... */ | ||
4207 | niro | 1696 | if (needs & NEED_END) { |
4208 | newLine = addLine(new, config->cfi, LT_ENTRY_END, | ||
4209 | config->secondaryIndent, NULL); | ||
4210 | needs &= ~NEED_END; | ||
4211 | } | ||
4212 | niro | 2709 | |
4213 | niro | 914 | if (needs) { |
4214 | printf(_("grubby: needs=%d, aborting\n"), needs); | ||
4215 | abort(); | ||
4216 | } | ||
4217 | |||
4218 | niro | 532 | if (updateImage(config, "0", prefix, newKernelArgs, NULL, |
4219 | newMBKernelArgs, NULL)) return 1; | ||
4220 | |||
4221 | return 0; | ||
4222 | } | ||
4223 | |||
4224 | int main(int argc, const char ** argv) { | ||
4225 | poptContext optCon; | ||
4226 | niro | 1696 | const char * grubConfig = NULL; |
4227 | niro | 532 | char * outputFile = NULL; |
4228 | int arg = 0; | ||
4229 | int flags = 0; | ||
4230 | int badImageOkay = 0; | ||
4231 | niro | 1696 | int configureGrub2 = 0; |
4232 | niro | 532 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; |
4233 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; | ||
4234 | niro | 914 | int configureExtLinux = 0; |
4235 | niro | 532 | int bootloaderProbe = 0; |
4236 | niro | 914 | int extraInitrdCount = 0; |
4237 | niro | 532 | char * updateKernelPath = NULL; |
4238 | char * newKernelPath = NULL; | ||
4239 | char * removeKernelPath = NULL; | ||
4240 | char * newKernelArgs = NULL; | ||
4241 | char * newKernelInitrd = NULL; | ||
4242 | char * newKernelTitle = NULL; | ||
4243 | niro | 2685 | char * newDevTreePath = NULL; |
4244 | niro | 532 | char * newMBKernel = NULL; |
4245 | char * newMBKernelArgs = NULL; | ||
4246 | char * removeMBKernelArgs = NULL; | ||
4247 | char * removeMBKernel = NULL; | ||
4248 | char * bootPrefix = NULL; | ||
4249 | char * defaultKernel = NULL; | ||
4250 | char * removeArgs = NULL; | ||
4251 | char * kernelInfo = NULL; | ||
4252 | niro | 914 | char * extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; |
4253 | niro | 2252 | char * envPath = NULL; |
4254 | niro | 532 | const char * chptr = NULL; |
4255 | struct configFileInfo * cfi = NULL; | ||
4256 | struct grubConfig * config; | ||
4257 | struct singleEntry * template = NULL; | ||
4258 | int copyDefault = 0, makeDefault = 0; | ||
4259 | int displayDefault = 0; | ||
4260 | niro | 1720 | int displayDefaultIndex = 0; |
4261 | niro | 1721 | int displayDefaultTitle = 0; |
4262 | niro | 1859 | int defaultIndex = -1; |
4263 | niro | 532 | struct poptOption options[] = { |
4264 | { "add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, | ||
4265 | _("add an entry for the specified kernel"), _("kernel-path") }, | ||
4266 | { "add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, | ||
4267 | _("add an entry for the specified multiboot kernel"), NULL }, | ||
4268 | { "args", 0, POPT_ARG_STRING, &newKernelArgs, 0, | ||
4269 | _("default arguments for the new kernel or new arguments for " | ||
4270 | "kernel being updated"), _("args") }, | ||
4271 | { "mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, | ||
4272 | _("default arguments for the new multiboot kernel or " | ||
4273 | "new arguments for multiboot kernel being updated"), NULL }, | ||
4274 | { "bad-image-okay", 0, 0, &badImageOkay, 0, | ||
4275 | _("don't sanity check images in boot entries (for testing only)"), | ||
4276 | NULL }, | ||
4277 | { "boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, | ||
4278 | _("filestystem which contains /boot directory (for testing only)"), | ||
4279 | _("bootfs") }, | ||
4280 | niro | 1854 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
4281 | niro | 532 | { "bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
4282 | niro | 1853 | _("check which bootloader is installed on boot sector") }, |
4283 | niro | 532 | #endif |
4284 | { "config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, | ||
4285 | _("path to grub config file to update (\"-\" for stdin)"), | ||
4286 | _("path") }, | ||
4287 | { "copy-default", 0, 0, ©Default, 0, | ||
4288 | _("use the default boot entry as a template for the new entry " | ||
4289 | "being added; if the default is not a linux image, or if " | ||
4290 | "the kernel referenced by the default image does not exist, " | ||
4291 | "the first linux entry whose kernel does exist is used as the " | ||
4292 | "template"), NULL }, | ||
4293 | niro | 1736 | { "debug", 0, 0, &debug, 0, |
4294 | _("print debugging information for failures") }, | ||
4295 | niro | 532 | { "default-kernel", 0, 0, &displayDefault, 0, |
4296 | _("display the path of the default kernel") }, | ||
4297 | niro | 1720 | { "default-index", 0, 0, &displayDefaultIndex, 0, |
4298 | _("display the index of the default kernel") }, | ||
4299 | niro | 1721 | { "default-title", 0, 0, &displayDefaultTitle, 0, |
4300 | _("display the title of the default kernel") }, | ||
4301 | niro | 2685 | { "devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4302 | _("device tree file for new stanza"), _("dtb-path") }, | ||
4303 | niro | 2972 | { "devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0, |
4304 | _("device tree directory for new stanza"), _("dtb-path") }, | ||
4305 | niro | 532 | { "elilo", 0, POPT_ARG_NONE, &configureELilo, 0, |
4306 | _("configure elilo bootloader") }, | ||
4307 | niro | 1940 | { "efi", 0, POPT_ARG_NONE, &isEfi, 0, |
4308 | _("force grub2 stanzas to use efi") }, | ||
4309 | niro | 2252 | { "env", 0, POPT_ARG_STRING, &envPath, 0, |
4310 | _("path for environment data"), | ||
4311 | _("path") }, | ||
4312 | niro | 914 | { "extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, |
4313 | _("configure extlinux bootloader (from syslinux)") }, | ||
4314 | niro | 532 | { "grub", 0, POPT_ARG_NONE, &configureGrub, 0, |
4315 | _("configure grub bootloader") }, | ||
4316 | niro | 1696 | { "grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, |
4317 | _("configure grub2 bootloader") }, | ||
4318 | niro | 532 | { "info", 0, POPT_ARG_STRING, &kernelInfo, 0, |
4319 | _("display boot information for specified kernel"), | ||
4320 | _("kernel-path") }, | ||
4321 | { "initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, | ||
4322 | _("initrd image for the new kernel"), _("initrd-path") }, | ||
4323 | niro | 914 | { "extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', |
4324 | niro | 2058 | _("auxiliary initrd image for things other than the new kernel"), _("initrd-path") }, |
4325 | niro | 532 | { "lilo", 0, POPT_ARG_NONE, &configureLilo, 0, |
4326 | _("configure lilo bootloader") }, | ||
4327 | { "make-default", 0, 0, &makeDefault, 0, | ||
4328 | _("make the newly added entry the default boot entry"), NULL }, | ||
4329 | { "output-file", 'o', POPT_ARG_STRING, &outputFile, 0, | ||
4330 | _("path to output updated config file (\"-\" for stdout)"), | ||
4331 | _("path") }, | ||
4332 | { "remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, | ||
4333 | _("remove kernel arguments"), NULL }, | ||
4334 | { "remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, | ||
4335 | _("remove multiboot kernel arguments"), NULL }, | ||
4336 | { "remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, | ||
4337 | _("remove all entries for the specified kernel"), | ||
4338 | _("kernel-path") }, | ||
4339 | { "remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, | ||
4340 | _("remove all entries for the specified multiboot kernel"), NULL }, | ||
4341 | { "set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, | ||
4342 | _("make the first entry referencing the specified kernel " | ||
4343 | "the default"), _("kernel-path") }, | ||
4344 | niro | 1859 | { "set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, |
4345 | _("make the given entry index the default entry"), | ||
4346 | _("entry-index") }, | ||
4347 | niro | 532 | { "silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
4348 | _("configure silo bootloader") }, | ||
4349 | { "title", 0, POPT_ARG_STRING, &newKernelTitle, 0, | ||
4350 | _("title to use for the new kernel entry"), _("entry-title") }, | ||
4351 | { "update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, | ||
4352 | _("updated information for the specified kernel"), | ||
4353 | _("kernel-path") }, | ||
4354 | { "version", 'v', 0, NULL, 'v', | ||
4355 | _("print the version of this program and exit"), NULL }, | ||
4356 | { "yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, | ||
4357 | _("configure yaboot bootloader") }, | ||
4358 | { "zipl", 0, POPT_ARG_NONE, &configureZipl, 0, | ||
4359 | _("configure zipl bootloader") }, | ||
4360 | POPT_AUTOHELP | ||
4361 | { 0, 0, 0, 0, 0 } | ||
4362 | }; | ||
4363 | |||
4364 | niro | 914 | useextlinuxmenu=0; |
4365 | |||
4366 | niro | 2236 | int i = 0; |
4367 | for (int j = 1; j < argc; j++) | ||
4368 | i += strlen(argv[j]) + 1; | ||
4369 | saved_command_line = malloc(i); | ||
4370 | if (!saved_command_line) { | ||
4371 | fprintf(stderr, "grubby: %m\n"); | ||
4372 | exit(1); | ||
4373 | } | ||
4374 | saved_command_line[0] = '\0'; | ||
4375 | for (int j = 1; j < argc; j++) { | ||
4376 | strcat(saved_command_line, argv[j]); | ||
4377 | strncat(saved_command_line, j == argc -1 ? "" : " ", 1); | ||
4378 | } | ||
4379 | |||
4380 | niro | 532 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
4381 | poptReadDefaultConfig(optCon, 1); | ||
4382 | |||
4383 | while ((arg = poptGetNextOpt(optCon)) >= 0) { | ||
4384 | switch (arg) { | ||
4385 | case 'v': | ||
4386 | printf("grubby version %s\n", VERSION); | ||
4387 | exit(0); | ||
4388 | break; | ||
4389 | niro | 914 | case 'i': |
4390 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { | ||
4391 | extraInitrds[extraInitrdCount++] = strdup(poptGetOptArg(optCon)); | ||
4392 | } else { | ||
4393 | fprintf(stderr, _("grubby: extra initrd maximum is %d\n"), extraInitrdCount); | ||
4394 | return 1; | ||
4395 | } | ||
4396 | break; | ||
4397 | niro | 532 | } |
4398 | } | ||
4399 | |||
4400 | if (arg < -1) { | ||
4401 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), | ||
4402 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), | ||
4403 | poptStrerror(arg)); | ||
4404 | return 1; | ||
4405 | } | ||
4406 | |||
4407 | if ((chptr = poptGetArg(optCon))) { | ||
4408 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); | ||
4409 | return 1; | ||
4410 | } | ||
4411 | |||
4412 | niro | 1696 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
4413 | niro | 914 | configureYaboot + configureSilo + configureZipl + |
4414 | configureExtLinux ) > 1) { | ||
4415 | niro | 532 | fprintf(stderr, _("grubby: cannot specify multiple bootloaders\n")); |
4416 | return 1; | ||
4417 | } else if (bootloaderProbe && grubConfig) { | ||
4418 | fprintf(stderr, | ||
4419 | _("grubby: cannot specify config file with --bootloader-probe\n")); | ||
4420 | return 1; | ||
4421 | niro | 1696 | } else if (configureGrub2) { |
4422 | cfi = &grub2ConfigType; | ||
4423 | niro | 2252 | if (envPath) |
4424 | cfi->envFile = envPath; | ||
4425 | niro | 532 | } else if (configureLilo) { |
4426 | cfi = &liloConfigType; | ||
4427 | } else if (configureGrub) { | ||
4428 | cfi = &grubConfigType; | ||
4429 | } else if (configureELilo) { | ||
4430 | cfi = &eliloConfigType; | ||
4431 | } else if (configureYaboot) { | ||
4432 | cfi = &yabootConfigType; | ||
4433 | } else if (configureSilo) { | ||
4434 | cfi = &siloConfigType; | ||
4435 | } else if (configureZipl) { | ||
4436 | cfi = &ziplConfigType; | ||
4437 | niro | 914 | } else if (configureExtLinux) { |
4438 | cfi = &extlinuxConfigType; | ||
4439 | useextlinuxmenu=1; | ||
4440 | niro | 532 | } |
4441 | |||
4442 | if (!cfi) { | ||
4443 | niro | 2986 | if (grub2FindConfig(&grub2ConfigType)) { |
4444 | niro | 1802 | cfi = &grub2ConfigType; |
4445 | niro | 2986 | if (envPath) |
4446 | cfi->envFile = envPath; | ||
4447 | } else | ||
4448 | niro | 532 | #ifdef __ia64__ |
4449 | niro | 1802 | cfi = &eliloConfigType; |
4450 | niro | 532 | #elif __powerpc__ |
4451 | niro | 1802 | cfi = &yabootConfigType; |
4452 | niro | 532 | #elif __sparc__ |
4453 | niro | 1802 | cfi = &siloConfigType; |
4454 | niro | 532 | #elif __s390__ |
4455 | niro | 1802 | cfi = &ziplConfigType; |
4456 | niro | 532 | #elif __s390x__ |
4457 | niro | 1802 | cfi = &ziplConfigtype; |
4458 | niro | 532 | #else |
4459 | niro | 1696 | cfi = &grubConfigType; |
4460 | niro | 532 | #endif |
4461 | } | ||
4462 | |||
4463 | niro | 1696 | if (!grubConfig) { |
4464 | if (cfi->findConfig) | ||
4465 | grubConfig = cfi->findConfig(cfi); | ||
4466 | if (!grubConfig) | ||
4467 | grubConfig = cfi->defaultConfig; | ||
4468 | } | ||
4469 | niro | 532 | |
4470 | niro | 2685 | if (bootloaderProbe && (displayDefault || kernelInfo || |
4471 | niro | 1859 | newKernelPath || removeKernelPath || makeDefault || |
4472 | defaultKernel || displayDefaultIndex || displayDefaultTitle || | ||
4473 | (defaultIndex >= 0))) { | ||
4474 | niro | 532 | fprintf(stderr, _("grubby: --bootloader-probe may not be used with " |
4475 | "specified option")); | ||
4476 | return 1; | ||
4477 | } | ||
4478 | |||
4479 | niro | 2685 | if ((displayDefault || kernelInfo) && (newKernelPath || |
4480 | niro | 532 | removeKernelPath)) { |
4481 | fprintf(stderr, _("grubby: --default-kernel and --info may not " | ||
4482 | "be used when adding or removing kernels\n")); | ||
4483 | return 1; | ||
4484 | } | ||
4485 | |||
4486 | if (newKernelPath && !newKernelTitle) { | ||
4487 | fprintf(stderr, _("grubby: kernel title must be specified\n")); | ||
4488 | return 1; | ||
4489 | niro | 2960 | } else if (!newKernelPath && (copyDefault || |
4490 | niro | 1156 | (newKernelInitrd && !updateKernelPath)|| |
4491 | niro | 914 | makeDefault || extraInitrdCount > 0)) { |
4492 | niro | 532 | fprintf(stderr, _("grubby: kernel path expected\n")); |
4493 | return 1; | ||
4494 | } | ||
4495 | |||
4496 | if (newKernelPath && updateKernelPath) { | ||
4497 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" | ||
4498 | "not be used together")); | ||
4499 | return 1; | ||
4500 | } | ||
4501 | |||
4502 | if (makeDefault && defaultKernel) { | ||
4503 | fprintf(stderr, _("grubby: --make-default and --default-kernel " | ||
4504 | "may not be used together\n")); | ||
4505 | return 1; | ||
4506 | } else if (defaultKernel && removeKernelPath && | ||
4507 | !strcmp(defaultKernel, removeKernelPath)) { | ||
4508 | fprintf(stderr, _("grubby: cannot make removed kernel the default\n")); | ||
4509 | return 1; | ||
4510 | } else if (defaultKernel && newKernelPath && | ||
4511 | !strcmp(defaultKernel, newKernelPath)) { | ||
4512 | makeDefault = 1; | ||
4513 | defaultKernel = NULL; | ||
4514 | } | ||
4515 | niro | 1859 | else if (defaultKernel && (defaultIndex >= 0)) { |
4516 | fprintf(stderr, _("grubby: --set-default and --set-default-index " | ||
4517 | "may not be used together\n")); | ||
4518 | return 1; | ||
4519 | } | ||
4520 | niro | 532 | |
4521 | niro | 1717 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
4522 | niro | 532 | fprintf(stderr, _("grubby: output file must be specified if stdin " |
4523 | "is used\n")); | ||
4524 | return 1; | ||
4525 | } | ||
4526 | |||
4527 | if (!removeKernelPath && !newKernelPath && !displayDefault && !defaultKernel | ||
4528 | niro | 1859 | && !kernelInfo && !bootloaderProbe && !updateKernelPath |
4529 | && !removeMBKernel && !displayDefaultIndex && !displayDefaultTitle | ||
4530 | && (defaultIndex == -1)) { | ||
4531 | niro | 532 | fprintf(stderr, _("grubby: no action specified\n")); |
4532 | return 1; | ||
4533 | } | ||
4534 | |||
4535 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; | ||
4536 | |||
4537 | if (cfi->needsBootPrefix) { | ||
4538 | if (!bootPrefix) { | ||
4539 | bootPrefix = findBootPrefix(); | ||
4540 | if (!bootPrefix) return 1; | ||
4541 | } else { | ||
4542 | /* this shouldn't end with a / */ | ||
4543 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') | ||
4544 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; | ||
4545 | } | ||
4546 | } else { | ||
4547 | bootPrefix = ""; | ||
4548 | } | ||
4549 | |||
4550 | niro | 914 | if (!cfi->mbAllowExtraInitRds && |
4551 | extraInitrdCount > 0) { | ||
4552 | fprintf(stderr, _("grubby: %s doesn't allow multiple initrds\n"), cfi->defaultConfig); | ||
4553 | return 1; | ||
4554 | } | ||
4555 | |||
4556 | niro | 532 | if (bootloaderProbe) { |
4557 | niro | 1854 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; |
4558 | struct grubConfig * lconfig, * gconfig, * yconfig, * econfig; | ||
4559 | niro | 532 | |
4560 | niro | 1696 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
4561 | if (grub2config) { | ||
4562 | gconfig = readConfig(grub2config, &grub2ConfigType); | ||
4563 | if (!gconfig) | ||
4564 | gr2c = 1; | ||
4565 | else | ||
4566 | gr2c = checkForGrub2(gconfig); | ||
4567 | } | ||
4568 | |||
4569 | niro | 1715 | const char *grubconfig = grubFindConfig(&grubConfigType); |
4570 | if (!access(grubconfig, F_OK)) { | ||
4571 | gconfig = readConfig(grubconfig, &grubConfigType); | ||
4572 | niro | 532 | if (!gconfig) |
4573 | grc = 1; | ||
4574 | else | ||
4575 | grc = checkForGrub(gconfig); | ||
4576 | } | ||
4577 | |||
4578 | if (!access(liloConfigType.defaultConfig, F_OK)) { | ||
4579 | lconfig = readConfig(liloConfigType.defaultConfig, &liloConfigType); | ||
4580 | if (!lconfig) | ||
4581 | lrc = 1; | ||
4582 | else | ||
4583 | lrc = checkForLilo(lconfig); | ||
4584 | } | ||
4585 | |||
4586 | niro | 1854 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
4587 | econfig = readConfig(eliloConfigType.defaultConfig, | ||
4588 | &eliloConfigType); | ||
4589 | if (!econfig) | ||
4590 | erc = 1; | ||
4591 | else | ||
4592 | erc = checkForElilo(econfig); | ||
4593 | } | ||
4594 | |||
4595 | niro | 914 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
4596 | lconfig = readConfig(extlinuxConfigType.defaultConfig, &extlinuxConfigType); | ||
4597 | if (!lconfig) | ||
4598 | niro | 1854 | extrc = 1; |
4599 | niro | 914 | else |
4600 | niro | 1854 | extrc = checkForExtLinux(lconfig); |
4601 | niro | 914 | } |
4602 | |||
4603 | niro | 532 | |
4604 | niro | 1853 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
4605 | yconfig = readConfig(yabootConfigType.defaultConfig, | ||
4606 | &yabootConfigType); | ||
4607 | if (!yconfig) | ||
4608 | yrc = 1; | ||
4609 | else | ||
4610 | niro | 1864 | yrc = checkForYaboot(yconfig); |
4611 | niro | 1853 | } |
4612 | |||
4613 | niro | 1854 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 || |
4614 | niro | 1855 | erc == 1) |
4615 | niro | 1854 | return 1; |
4616 | niro | 1853 | |
4617 | niro | 532 | if (lrc == 2) printf("lilo\n"); |
4618 | niro | 1696 | if (gr2c == 2) printf("grub2\n"); |
4619 | niro | 532 | if (grc == 2) printf("grub\n"); |
4620 | niro | 1854 | if (extrc == 2) printf("extlinux\n"); |
4621 | niro | 1853 | if (yrc == 2) printf("yaboot\n"); |
4622 | niro | 1854 | if (erc == 2) printf("elilo\n"); |
4623 | niro | 532 | |
4624 | return 0; | ||
4625 | } | ||
4626 | |||
4627 | niro | 2246 | if (grubConfig == NULL) { |
4628 | printf("Could not find bootloader configuration file.\n"); | ||
4629 | exit(1); | ||
4630 | } | ||
4631 | |||
4632 | niro | 532 | config = readConfig(grubConfig, cfi); |
4633 | if (!config) return 1; | ||
4634 | |||
4635 | if (displayDefault) { | ||
4636 | struct singleLine * line; | ||
4637 | struct singleEntry * entry; | ||
4638 | char * rootspec; | ||
4639 | |||
4640 | if (config->defaultImage == -1) return 0; | ||
4641 | niro | 2255 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
4642 | cfi->defaultIsSaved) | ||
4643 | config->defaultImage = 0; | ||
4644 | niro | 532 | entry = findEntryByIndex(config, config->defaultImage); |
4645 | if (!entry) return 0; | ||
4646 | if (!suitableImage(entry, bootPrefix, 0, flags)) return 0; | ||
4647 | |||
4648 | niro | 2683 | line = getLineByType(LT_KERNEL|LT_HYPER|LT_KERNEL_EFI|LT_KERNEL_16, entry->lines); |
4649 | niro | 532 | if (!line) return 0; |
4650 | |||
4651 | rootspec = getRootSpecifier(line->elements[1].item); | ||
4652 | printf("%s%s\n", bootPrefix, line->elements[1].item + | ||
4653 | ((rootspec != NULL) ? strlen(rootspec) : 0)); | ||
4654 | |||
4655 | return 0; | ||
4656 | niro | 1720 | |
4657 | niro | 1721 | } else if (displayDefaultTitle) { |
4658 | struct singleLine * line; | ||
4659 | struct singleEntry * entry; | ||
4660 | |||
4661 | niro | 2992 | if (config->defaultImage == -1) |
4662 | return 0; | ||
4663 | niro | 2255 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
4664 | cfi->defaultIsSaved) | ||
4665 | config->defaultImage = 0; | ||
4666 | niro | 1721 | entry = findEntryByIndex(config, config->defaultImage); |
4667 | niro | 2992 | if (!entry) |
4668 | return 0; | ||
4669 | niro | 1721 | |
4670 | if (!configureGrub2) { | ||
4671 | niro | 2992 | char *title; |
4672 | line = getLineByType(LT_TITLE, entry->lines); | ||
4673 | if (!line) | ||
4674 | return 0; | ||
4675 | title = extractTitle(config, line); | ||
4676 | if (!title) | ||
4677 | return 0; | ||
4678 | printf("%s\n", title); | ||
4679 | free(title); | ||
4680 | niro | 1721 | } else { |
4681 | niro | 2992 | char * title; |
4682 | niro | 1721 | |
4683 | niro | 2992 | dbgPrintf("This is GRUB2, default title is embeded in menuentry\n"); |
4684 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
4685 | if (!line) | ||
4686 | return 0; | ||
4687 | title = grub2ExtractTitle(line); | ||
4688 | if (title) | ||
4689 | printf("%s\n", title); | ||
4690 | niro | 1721 | } |
4691 | return 0; | ||
4692 | |||
4693 | niro | 1720 | } else if (displayDefaultIndex) { |
4694 | if (config->defaultImage == -1) return 0; | ||
4695 | niro | 2255 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && |
4696 | cfi->defaultIsSaved) | ||
4697 | config->defaultImage = 0; | ||
4698 | niro | 1720 | printf("%i\n", config->defaultImage); |
4699 | niro | 2250 | return 0; |
4700 | niro | 1720 | |
4701 | niro | 532 | } else if (kernelInfo) |
4702 | return displayInfo(config, kernelInfo, bootPrefix); | ||
4703 | |||
4704 | if (copyDefault) { | ||
4705 | template = findTemplate(config, bootPrefix, NULL, 0, flags); | ||
4706 | if (!template) return 1; | ||
4707 | } | ||
4708 | |||
4709 | markRemovedImage(config, removeKernelPath, bootPrefix); | ||
4710 | markRemovedImage(config, removeMBKernel, bootPrefix); | ||
4711 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, makeDefault, | ||
4712 | niro | 1859 | bootPrefix, flags, defaultIndex); |
4713 | niro | 532 | setFallbackImage(config, newKernelPath != NULL); |
4714 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, | ||
4715 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) return 1; | ||
4716 | niro | 1156 | if (updateKernelPath && newKernelInitrd) { |
4717 | niro | 2263 | if (newMBKernel) { |
4718 | if (addMBInitrd(config, newMBKernel, updateKernelPath, | ||
4719 | niro | 2960 | bootPrefix, newKernelInitrd, |
4720 | newKernelTitle)) | ||
4721 | niro | 2263 | return 1; |
4722 | } else { | ||
4723 | if (updateInitrd(config, updateKernelPath, bootPrefix, | ||
4724 | niro | 2960 | newKernelInitrd, newKernelTitle)) |
4725 | niro | 2263 | return 1; |
4726 | } | ||
4727 | niro | 1156 | } |
4728 | niro | 532 | if (addNewKernel(config, template, bootPrefix, newKernelPath, |
4729 | newKernelTitle, newKernelArgs, newKernelInitrd, | ||
4730 | niro | 1844 | (const char **)extraInitrds, extraInitrdCount, |
4731 | niro | 2685 | newMBKernel, newMBKernelArgs, newDevTreePath)) return 1; |
4732 | niro | 532 | |
4733 | |||
4734 | if (numEntries(config) == 0) { | ||
4735 | fprintf(stderr, _("grubby: doing this would leave no kernel entries. " | ||
4736 | "Not writing out new config.\n")); | ||
4737 | return 1; | ||
4738 | } | ||
4739 | |||
4740 | if (!outputFile) | ||
4741 | niro | 1696 | outputFile = (char *)grubConfig; |
4742 | niro | 532 | |
4743 | return writeConfig(config, outputFile, bootPrefix); | ||
4744 | } |