Annotation of /trunk/grubby/grubby.c
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Tue Jul 7 11:12:00 2020 UTC (3 years, 10 months ago) by niro
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Tue Jul 7 11:12:00 2020 UTC (3 years, 10 months ago) by niro
File MIME type: text/plain
File size: 138257 byte(s)
Add btrfs subvolume support for grub2
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 | 3002 | int debug = 0; /* Currently just for template debugging */ |
52 | niro | 1736 | |
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 | 3139 | const char *mounts = "/proc/mounts"; |
72 | |||
73 | niro | 532 | /* comments get lumped in with indention */ |
74 | struct lineElement { | ||
75 | niro | 3002 | char *item; |
76 | char *indent; | ||
77 | niro | 532 | }; |
78 | |||
79 | niro | 3002 | enum lineType_e { |
80 | niro | 3003 | LT_UNIDENTIFIED = 0, |
81 | niro | 3002 | LT_WHITESPACE = 1 << 0, |
82 | LT_TITLE = 1 << 1, | ||
83 | LT_KERNEL = 1 << 2, | ||
84 | LT_INITRD = 1 << 3, | ||
85 | LT_HYPER = 1 << 4, | ||
86 | LT_DEFAULT = 1 << 5, | ||
87 | LT_MBMODULE = 1 << 6, | ||
88 | LT_ROOT = 1 << 7, | ||
89 | LT_FALLBACK = 1 << 8, | ||
90 | LT_KERNELARGS = 1 << 9, | ||
91 | LT_BOOT = 1 << 10, | ||
92 | LT_BOOTROOT = 1 << 11, | ||
93 | LT_LBA = 1 << 12, | ||
94 | LT_OTHER = 1 << 13, | ||
95 | LT_GENERIC = 1 << 14, | ||
96 | LT_ECHO = 1 << 16, | ||
97 | LT_MENUENTRY = 1 << 17, | ||
98 | LT_ENTRY_END = 1 << 18, | ||
99 | LT_SET_VARIABLE = 1 << 19, | ||
100 | LT_KERNEL_EFI = 1 << 20, | ||
101 | LT_INITRD_EFI = 1 << 21, | ||
102 | LT_KERNEL_16 = 1 << 22, | ||
103 | LT_INITRD_16 = 1 << 23, | ||
104 | LT_DEVTREE = 1 << 24, | ||
105 | LT_UNKNOWN = 1 << 25, | ||
106 | niro | 914 | }; |
107 | niro | 532 | |
108 | struct singleLine { | ||
109 | niro | 3002 | char *indent; |
110 | int numElements; | ||
111 | struct lineElement *elements; | ||
112 | struct singleLine *next; | ||
113 | enum lineType_e type; | ||
114 | niro | 532 | }; |
115 | |||
116 | struct singleEntry { | ||
117 | niro | 3002 | struct singleLine *lines; |
118 | int skip; | ||
119 | int multiboot; | ||
120 | struct singleEntry *next; | ||
121 | niro | 532 | }; |
122 | |||
123 | #define GRUBBY_BADIMAGE_OKAY (1 << 0) | ||
124 | |||
125 | #define GRUB_CONFIG_NO_DEFAULT (1 << 0) /* don't write out default=0 */ | ||
126 | |||
127 | niro | 914 | /* These defines are (only) used in addNewKernel() */ |
128 | #define NEED_KERNEL (1 << 0) | ||
129 | #define NEED_INITRD (1 << 1) | ||
130 | #define NEED_TITLE (1 << 2) | ||
131 | #define NEED_ARGS (1 << 3) | ||
132 | #define NEED_MB (1 << 4) | ||
133 | niro | 1696 | #define NEED_END (1 << 5) |
134 | niro | 2685 | #define NEED_DEVTREE (1 << 6) |
135 | niro | 532 | |
136 | #define MAIN_DEFAULT (1 << 0) | ||
137 | niro | 3018 | #define FIRST_ENTRY_INDEX 0 /* boot entry index value begin and increment |
138 | from this initial value */ | ||
139 | #define NO_DEFAULT_ENTRY -1 /* indicates that no specific default boot | ||
140 | entry was set or currently exists */ | ||
141 | niro | 532 | #define DEFAULT_SAVED -2 |
142 | niro | 1748 | #define DEFAULT_SAVED_GRUB2 -3 |
143 | niro | 532 | |
144 | struct keywordTypes { | ||
145 | niro | 3002 | char *key; |
146 | enum lineType_e type; | ||
147 | char nextChar; | ||
148 | char separatorChar; | ||
149 | niro | 914 | }; |
150 | niro | 532 | |
151 | niro | 1696 | struct configFileInfo; |
152 | |||
153 | niro | 3002 | typedef const char *(*findConfigFunc) (struct configFileInfo *); |
154 | typedef const int (*writeLineFunc) (struct configFileInfo *, | ||
155 | struct singleLine * line); | ||
156 | typedef char *(*getEnvFunc) (struct configFileInfo *, char *name); | ||
157 | typedef int (*setEnvFunc) (struct configFileInfo *, char *name, char *value); | ||
158 | niro | 1696 | |
159 | niro | 532 | struct configFileInfo { |
160 | niro | 3002 | char *defaultConfig; |
161 | findConfigFunc findConfig; | ||
162 | writeLineFunc writeLine; | ||
163 | getEnvFunc getEnv; | ||
164 | setEnvFunc setEnv; | ||
165 | struct keywordTypes *keywords; | ||
166 | int caseInsensitive; | ||
167 | int defaultIsIndex; | ||
168 | int defaultIsVariable; | ||
169 | int defaultSupportSaved; | ||
170 | int defaultIsSaved; | ||
171 | int defaultIsUnquoted; | ||
172 | enum lineType_e entryStart; | ||
173 | enum lineType_e entryEnd; | ||
174 | int needsBootPrefix; | ||
175 | int argsInQuotes; | ||
176 | int maxTitleLength; | ||
177 | int titleBracketed; | ||
178 | int titlePosition; | ||
179 | int mbHyperFirst; | ||
180 | int mbInitRdIsModule; | ||
181 | int mbConcatArgs; | ||
182 | int mbAllowExtraInitRds; | ||
183 | char *envFile; | ||
184 | niro | 532 | }; |
185 | |||
186 | struct keywordTypes grubKeywords[] = { | ||
187 | niro | 3002 | {"title", LT_TITLE, ' '}, |
188 | {"root", LT_BOOTROOT, ' '}, | ||
189 | {"default", LT_DEFAULT, ' '}, | ||
190 | {"fallback", LT_FALLBACK, ' '}, | ||
191 | {"kernel", LT_KERNEL, ' '}, | ||
192 | {"initrd", LT_INITRD, ' ', ' '}, | ||
193 | {"module", LT_MBMODULE, ' '}, | ||
194 | {"kernel", LT_HYPER, ' '}, | ||
195 | {NULL, 0, 0}, | ||
196 | niro | 532 | }; |
197 | |||
198 | niro | 3002 | const char *grubFindConfig(struct configFileInfo *cfi) |
199 | { | ||
200 | static const char *configFiles[] = { | ||
201 | "/boot/grub/grub.conf", | ||
202 | "/boot/grub/menu.lst", | ||
203 | "/etc/grub.conf", | ||
204 | NULL | ||
205 | }; | ||
206 | static int i = -1; | ||
207 | niro | 1715 | |
208 | niro | 3002 | if (i == -1) { |
209 | for (i = 0; configFiles[i] != NULL; i++) { | ||
210 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
211 | if (!access(configFiles[i], R_OK)) { | ||
212 | dbgPrintf("found\n"); | ||
213 | return configFiles[i]; | ||
214 | } | ||
215 | dbgPrintf("not found\n"); | ||
216 | } | ||
217 | niro | 1715 | } |
218 | niro | 3002 | return configFiles[i]; |
219 | niro | 1715 | } |
220 | |||
221 | niro | 532 | struct configFileInfo grubConfigType = { |
222 | niro | 3002 | .findConfig = grubFindConfig, |
223 | .keywords = grubKeywords, | ||
224 | .defaultIsIndex = 1, | ||
225 | .defaultSupportSaved = 1, | ||
226 | .entryStart = LT_TITLE, | ||
227 | .needsBootPrefix = 1, | ||
228 | .mbHyperFirst = 1, | ||
229 | .mbInitRdIsModule = 1, | ||
230 | .mbAllowExtraInitRds = 1, | ||
231 | .titlePosition = 1, | ||
232 | niro | 532 | }; |
233 | |||
234 | niro | 1696 | struct keywordTypes grub2Keywords[] = { |
235 | niro | 3002 | {"menuentry", LT_MENUENTRY, ' '}, |
236 | {"}", LT_ENTRY_END, ' '}, | ||
237 | {"echo", LT_ECHO, ' '}, | ||
238 | {"set", LT_SET_VARIABLE, ' ', '='}, | ||
239 | {"root", LT_BOOTROOT, ' '}, | ||
240 | {"default", LT_DEFAULT, ' '}, | ||
241 | {"fallback", LT_FALLBACK, ' '}, | ||
242 | {"linux", LT_KERNEL, ' '}, | ||
243 | {"linuxefi", LT_KERNEL_EFI, ' '}, | ||
244 | {"linux16", LT_KERNEL_16, ' '}, | ||
245 | {"initrd", LT_INITRD, ' ', ' '}, | ||
246 | {"initrdefi", LT_INITRD_EFI, ' ', ' '}, | ||
247 | {"initrd16", LT_INITRD_16, ' ', ' '}, | ||
248 | {"module", LT_MBMODULE, ' '}, | ||
249 | {"kernel", LT_HYPER, ' '}, | ||
250 | {"devicetree", LT_DEVTREE, ' '}, | ||
251 | {NULL, 0, 0}, | ||
252 | niro | 1696 | }; |
253 | |||
254 | niro | 3002 | const char *grub2FindConfig(struct configFileInfo *cfi) |
255 | { | ||
256 | static const char *configFiles[] = { | ||
257 | "/boot/grub/grub-efi.cfg", | ||
258 | "/boot/grub/grub.cfg", | ||
259 | "/etc/grub2-efi.cfg", | ||
260 | "/etc/grub2.cfg", | ||
261 | "/boot/grub2/grub.cfg", | ||
262 | "/boot/grub2-efi/grub.cfg", | ||
263 | NULL | ||
264 | }; | ||
265 | static int i = -1; | ||
266 | static const char *grub_cfg = "/boot/grub/grub.cfg"; | ||
267 | int rc = -1; | ||
268 | niro | 1696 | |
269 | niro | 3002 | if (i == -1) { |
270 | for (i = 0; configFiles[i] != NULL; i++) { | ||
271 | dbgPrintf("Checking \"%s\": ", configFiles[i]); | ||
272 | if ((rc = access(configFiles[i], R_OK))) { | ||
273 | if (errno == EACCES) { | ||
274 | printf | ||
275 | ("Unable to access bootloader configuration file " | ||
276 | "\"%s\": %m\n", configFiles[i]); | ||
277 | exit(1); | ||
278 | } | ||
279 | continue; | ||
280 | } else { | ||
281 | dbgPrintf("found\n"); | ||
282 | return configFiles[i]; | ||
283 | } | ||
284 | niro | 2246 | } |
285 | niro | 3002 | } |
286 | |||
287 | /* Ubuntu renames grub2 to grub, so check for the grub.d directory | ||
288 | * that isn't in grub1, and if it exists, return the config file path | ||
289 | * that they use. */ | ||
290 | if (configFiles[i] == NULL && !access("/etc/grub.d/", R_OK)) { | ||
291 | niro | 1696 | dbgPrintf("found\n"); |
292 | niro | 3002 | return grub_cfg; |
293 | niro | 1696 | } |
294 | niro | 1714 | |
295 | niro | 3002 | dbgPrintf("not found\n"); |
296 | return configFiles[i]; | ||
297 | niro | 1696 | } |
298 | |||
299 | niro | 2252 | /* kind of hacky. It'll give the first 1024 bytes, ish. */ |
300 | static char *grub2GetEnv(struct configFileInfo *info, char *name) | ||
301 | { | ||
302 | niro | 3002 | static char buf[1025]; |
303 | char *s = NULL; | ||
304 | char *ret = NULL; | ||
305 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; | ||
306 | int rc = | ||
307 | asprintf(&s, "grub-editenv %s list | grep '^%s='", envFile, name); | ||
308 | niro | 2252 | |
309 | niro | 3002 | if (rc < 0) |
310 | return NULL; | ||
311 | niro | 2252 | |
312 | niro | 3002 | FILE *f = popen(s, "r"); |
313 | if (!f) | ||
314 | goto out; | ||
315 | niro | 2252 | |
316 | niro | 3002 | memset(buf, '\0', sizeof(buf)); |
317 | ret = fgets(buf, 1024, f); | ||
318 | pclose(f); | ||
319 | niro | 2252 | |
320 | niro | 3002 | if (ret) { |
321 | ret += strlen(name) + 1; | ||
322 | ret[strlen(ret) - 1] = '\0'; | ||
323 | } | ||
324 | dbgPrintf("grub2GetEnv(%s): %s\n", name, ret); | ||
325 | niro | 2252 | out: |
326 | niro | 3002 | free(s); |
327 | return ret; | ||
328 | niro | 2252 | } |
329 | |||
330 | niro | 2257 | static int sPopCount(const char *s, const char *c) |
331 | { | ||
332 | niro | 3002 | int ret = 0; |
333 | if (!s) | ||
334 | return -1; | ||
335 | for (int i = 0; s[i] != '\0'; i++) | ||
336 | for (int j = 0; c[j] != '\0'; j++) | ||
337 | if (s[i] == c[j]) | ||
338 | ret++; | ||
339 | return ret; | ||
340 | niro | 2257 | } |
341 | |||
342 | static char *shellEscape(const char *s) | ||
343 | { | ||
344 | niro | 3002 | int l = strlen(s) + sPopCount(s, "'") * 2; |
345 | niro | 2257 | |
346 | niro | 3002 | char *ret = calloc(l + 1, sizeof(*ret)); |
347 | if (!ret) | ||
348 | return NULL; | ||
349 | for (int i = 0, j = 0; s[i] != '\0'; i++, j++) { | ||
350 | if (s[i] == '\'') | ||
351 | ret[j++] = '\\'; | ||
352 | ret[j] = s[i]; | ||
353 | } | ||
354 | return ret; | ||
355 | niro | 2257 | } |
356 | |||
357 | static void unquote(char *s) | ||
358 | { | ||
359 | niro | 3002 | int l = strlen(s); |
360 | niro | 2257 | |
361 | niro | 3002 | if ((s[l - 1] == '\'' && s[0] == '\'') |
362 | || (s[l - 1] == '"' && s[0] == '"')) { | ||
363 | memmove(s, s + 1, l - 2); | ||
364 | s[l - 2] = '\0'; | ||
365 | } | ||
366 | niro | 2257 | } |
367 | |||
368 | niro | 2252 | static int grub2SetEnv(struct configFileInfo *info, char *name, char *value) |
369 | { | ||
370 | niro | 3002 | char *s = NULL; |
371 | int rc = 0; | ||
372 | char *envFile = info->envFile ? info->envFile : "/boot/grub/grubenv"; | ||
373 | niro | 2252 | |
374 | niro | 3002 | unquote(value); |
375 | value = shellEscape(value); | ||
376 | if (!value) | ||
377 | return -1; | ||
378 | niro | 2257 | |
379 | niro | 3002 | rc = asprintf(&s, "grub-editenv %s set '%s=%s'", envFile, name, value); |
380 | free(value); | ||
381 | if (rc < 0) | ||
382 | return -1; | ||
383 | niro | 2252 | |
384 | niro | 3002 | dbgPrintf("grub2SetEnv(%s): %s\n", name, s); |
385 | rc = system(s); | ||
386 | free(s); | ||
387 | return rc; | ||
388 | niro | 2252 | } |
389 | |||
390 | /* this is a gigantic hack to avoid clobbering grub2 variables... */ | ||
391 | static int is_special_grub2_variable(const char *name) | ||
392 | { | ||
393 | niro | 3002 | if (!strcmp(name, "\"${next_entry}\"")) |
394 | return 1; | ||
395 | if (!strcmp(name, "\"${prev_saved_entry}\"")) | ||
396 | return 1; | ||
397 | return 0; | ||
398 | niro | 2252 | } |
399 | |||
400 | niro | 3002 | int sizeOfSingleLine(struct singleLine *line) |
401 | { | ||
402 | int count = 0; | ||
403 | niro | 1746 | |
404 | niro | 3002 | for (int i = 0; i < line->numElements; i++) { |
405 | int indentSize = 0; | ||
406 | niro | 1746 | |
407 | niro | 3002 | count = count + strlen(line->elements[i].item); |
408 | niro | 1746 | |
409 | niro | 3002 | indentSize = strlen(line->elements[i].indent); |
410 | if (indentSize > 0) | ||
411 | count = count + indentSize; | ||
412 | else | ||
413 | /* be extra safe and add room for whitespaces */ | ||
414 | count = count + 1; | ||
415 | } | ||
416 | niro | 1746 | |
417 | niro | 3002 | /* room for trailing terminator */ |
418 | count = count + 1; | ||
419 | niro | 1746 | |
420 | niro | 3002 | return count; |
421 | niro | 1746 | } |
422 | |||
423 | niro | 1800 | static int isquote(char q) |
424 | { | ||
425 | niro | 3002 | if (q == '\'' || q == '\"') |
426 | return 1; | ||
427 | return 0; | ||
428 | niro | 1800 | } |
429 | |||
430 | niro | 3002 | static int iskernel(enum lineType_e type) |
431 | { | ||
432 | return (type == LT_KERNEL || type == LT_KERNEL_EFI | ||
433 | || type == LT_KERNEL_16); | ||
434 | niro | 1940 | } |
435 | |||
436 | niro | 3002 | static int isinitrd(enum lineType_e type) |
437 | { | ||
438 | return (type == LT_INITRD || type == LT_INITRD_EFI | ||
439 | || type == LT_INITRD_16); | ||
440 | niro | 1940 | } |
441 | |||
442 | niro | 3002 | char *grub2ExtractTitle(struct singleLine *line) |
443 | { | ||
444 | char *current; | ||
445 | char *current_indent; | ||
446 | int current_len; | ||
447 | int current_indent_len; | ||
448 | int i; | ||
449 | niro | 1746 | |
450 | niro | 3002 | /* bail out if line does not start with menuentry */ |
451 | if (strcmp(line->elements[0].item, "menuentry")) | ||
452 | return NULL; | ||
453 | niro | 1746 | |
454 | niro | 3002 | i = 1; |
455 | current = line->elements[i].item; | ||
456 | current_len = strlen(current); | ||
457 | niro | 1746 | |
458 | niro | 3002 | /* if second word is quoted, strip the quotes and return single word */ |
459 | if (isquote(*current) && isquote(current[current_len - 1])) { | ||
460 | char *tmp; | ||
461 | niro | 2992 | |
462 | niro | 3002 | tmp = strdup(current + 1); |
463 | if (!tmp) | ||
464 | return NULL; | ||
465 | tmp[strlen(tmp) - 1] = '\0'; | ||
466 | return tmp; | ||
467 | } | ||
468 | niro | 1746 | |
469 | niro | 3002 | /* if no quotes, return second word verbatim */ |
470 | if (!isquote(*current)) | ||
471 | return current; | ||
472 | niro | 1746 | |
473 | niro | 3002 | /* second element start with a quote, so we have to find the element |
474 | * whose last character is also quote (assuming it's the closing one) */ | ||
475 | int resultMaxSize; | ||
476 | char *result; | ||
477 | /* need to ensure that ' does not match " as we search */ | ||
478 | char quote_char = *current; | ||
479 | niro | 2992 | |
480 | niro | 3002 | resultMaxSize = sizeOfSingleLine(line); |
481 | result = malloc(resultMaxSize); | ||
482 | snprintf(result, resultMaxSize, "%s", ++current); | ||
483 | niro | 2992 | |
484 | niro | 3002 | i++; |
485 | for (; i < line->numElements; ++i) { | ||
486 | current = line->elements[i].item; | ||
487 | current_len = strlen(current); | ||
488 | current_indent = line->elements[i].indent; | ||
489 | current_indent_len = strlen(current_indent); | ||
490 | niro | 1746 | |
491 | niro | 3002 | strncat(result, current_indent, current_indent_len); |
492 | if (current[current_len - 1] != quote_char) { | ||
493 | strncat(result, current, current_len); | ||
494 | } else { | ||
495 | strncat(result, current, current_len - 1); | ||
496 | break; | ||
497 | } | ||
498 | niro | 1746 | } |
499 | niro | 3002 | return result; |
500 | niro | 1746 | } |
501 | |||
502 | niro | 1696 | struct configFileInfo grub2ConfigType = { |
503 | niro | 3002 | .findConfig = grub2FindConfig, |
504 | .getEnv = grub2GetEnv, | ||
505 | .setEnv = grub2SetEnv, | ||
506 | .keywords = grub2Keywords, | ||
507 | .defaultIsIndex = 1, | ||
508 | .defaultSupportSaved = 1, | ||
509 | .defaultIsVariable = 1, | ||
510 | .entryStart = LT_MENUENTRY, | ||
511 | .entryEnd = LT_ENTRY_END, | ||
512 | .titlePosition = 1, | ||
513 | .needsBootPrefix = 1, | ||
514 | .mbHyperFirst = 1, | ||
515 | .mbInitRdIsModule = 1, | ||
516 | .mbAllowExtraInitRds = 1, | ||
517 | niro | 1696 | }; |
518 | |||
519 | niro | 532 | struct keywordTypes yabootKeywords[] = { |
520 | niro | 3002 | {"label", LT_TITLE, '='}, |
521 | {"root", LT_ROOT, '='}, | ||
522 | {"default", LT_DEFAULT, '='}, | ||
523 | {"image", LT_KERNEL, '='}, | ||
524 | {"bsd", LT_GENERIC, '='}, | ||
525 | {"macos", LT_GENERIC, '='}, | ||
526 | {"macosx", LT_GENERIC, '='}, | ||
527 | {"magicboot", LT_GENERIC, '='}, | ||
528 | {"darwin", LT_GENERIC, '='}, | ||
529 | {"timeout", LT_GENERIC, '='}, | ||
530 | {"install", LT_GENERIC, '='}, | ||
531 | {"fstype", LT_GENERIC, '='}, | ||
532 | {"hfstype", LT_GENERIC, '='}, | ||
533 | {"delay", LT_GENERIC, '='}, | ||
534 | {"defaultos", LT_GENERIC, '='}, | ||
535 | {"init-message", LT_GENERIC, '='}, | ||
536 | {"enablecdboot", LT_GENERIC, ' '}, | ||
537 | {"enableofboot", LT_GENERIC, ' '}, | ||
538 | {"enablenetboot", LT_GENERIC, ' '}, | ||
539 | {"nonvram", LT_GENERIC, ' '}, | ||
540 | {"hide", LT_GENERIC, ' '}, | ||
541 | {"protect", LT_GENERIC, ' '}, | ||
542 | {"nobless", LT_GENERIC, ' '}, | ||
543 | {"nonvram", LT_GENERIC, ' '}, | ||
544 | {"brokenosx", LT_GENERIC, ' '}, | ||
545 | {"usemount", LT_GENERIC, ' '}, | ||
546 | {"mntpoint", LT_GENERIC, '='}, | ||
547 | {"partition", LT_GENERIC, '='}, | ||
548 | {"device", LT_GENERIC, '='}, | ||
549 | {"fstype", LT_GENERIC, '='}, | ||
550 | {"initrd", LT_INITRD, '=', ';'}, | ||
551 | {"append", LT_KERNELARGS, '='}, | ||
552 | {"boot", LT_BOOT, '='}, | ||
553 | {"lba", LT_LBA, ' '}, | ||
554 | {NULL, 0, 0}, | ||
555 | niro | 532 | }; |
556 | |||
557 | struct keywordTypes liloKeywords[] = { | ||
558 | niro | 3002 | {"label", LT_TITLE, '='}, |
559 | {"root", LT_ROOT, '='}, | ||
560 | {"default", LT_DEFAULT, '='}, | ||
561 | {"image", LT_KERNEL, '='}, | ||
562 | {"other", LT_OTHER, '='}, | ||
563 | {"initrd", LT_INITRD, '='}, | ||
564 | {"append", LT_KERNELARGS, '='}, | ||
565 | {"boot", LT_BOOT, '='}, | ||
566 | {"lba", LT_LBA, ' '}, | ||
567 | {NULL, 0, 0}, | ||
568 | niro | 532 | }; |
569 | |||
570 | niro | 914 | struct keywordTypes eliloKeywords[] = { |
571 | niro | 3002 | {"label", LT_TITLE, '='}, |
572 | {"root", LT_ROOT, '='}, | ||
573 | {"default", LT_DEFAULT, '='}, | ||
574 | {"image", LT_KERNEL, '='}, | ||
575 | {"initrd", LT_INITRD, '='}, | ||
576 | {"append", LT_KERNELARGS, '='}, | ||
577 | {"vmm", LT_HYPER, '='}, | ||
578 | {NULL, 0, 0}, | ||
579 | niro | 914 | }; |
580 | |||
581 | niro | 532 | struct keywordTypes siloKeywords[] = { |
582 | niro | 3002 | {"label", LT_TITLE, '='}, |
583 | {"root", LT_ROOT, '='}, | ||
584 | {"default", LT_DEFAULT, '='}, | ||
585 | {"image", LT_KERNEL, '='}, | ||
586 | {"other", LT_OTHER, '='}, | ||
587 | {"initrd", LT_INITRD, '='}, | ||
588 | {"append", LT_KERNELARGS, '='}, | ||
589 | {"boot", LT_BOOT, '='}, | ||
590 | {NULL, 0, 0}, | ||
591 | niro | 532 | }; |
592 | |||
593 | struct keywordTypes ziplKeywords[] = { | ||
594 | niro | 3002 | {"target", LT_BOOTROOT, '='}, |
595 | {"image", LT_KERNEL, '='}, | ||
596 | {"ramdisk", LT_INITRD, '='}, | ||
597 | {"parameters", LT_KERNELARGS, '='}, | ||
598 | {"default", LT_DEFAULT, '='}, | ||
599 | {NULL, 0, 0}, | ||
600 | niro | 532 | }; |
601 | |||
602 | niro | 914 | struct keywordTypes extlinuxKeywords[] = { |
603 | niro | 3002 | {"label", LT_TITLE, ' '}, |
604 | {"root", LT_ROOT, ' '}, | ||
605 | {"default", LT_DEFAULT, ' '}, | ||
606 | {"kernel", LT_KERNEL, ' '}, | ||
607 | {"initrd", LT_INITRD, ' ', ','}, | ||
608 | {"append", LT_KERNELARGS, ' '}, | ||
609 | {"prompt", LT_UNKNOWN, ' '}, | ||
610 | {"fdt", LT_DEVTREE, ' '}, | ||
611 | {"fdtdir", LT_DEVTREE, ' '}, | ||
612 | {NULL, 0, 0}, | ||
613 | niro | 914 | }; |
614 | niro | 3002 | |
615 | niro | 914 | int useextlinuxmenu; |
616 | niro | 532 | struct configFileInfo eliloConfigType = { |
617 | niro | 3002 | .defaultConfig = "/boot/efi/EFI/redhat/elilo.conf", |
618 | .keywords = eliloKeywords, | ||
619 | .entryStart = LT_KERNEL, | ||
620 | .needsBootPrefix = 1, | ||
621 | .argsInQuotes = 1, | ||
622 | .mbConcatArgs = 1, | ||
623 | .titlePosition = 1, | ||
624 | niro | 532 | }; |
625 | |||
626 | struct configFileInfo liloConfigType = { | ||
627 | niro | 3002 | .defaultConfig = "/etc/lilo.conf", |
628 | .keywords = liloKeywords, | ||
629 | .entryStart = LT_KERNEL, | ||
630 | .argsInQuotes = 1, | ||
631 | .maxTitleLength = 15, | ||
632 | .titlePosition = 1, | ||
633 | niro | 532 | }; |
634 | |||
635 | struct configFileInfo yabootConfigType = { | ||
636 | niro | 3002 | .defaultConfig = "/etc/yaboot.conf", |
637 | .keywords = yabootKeywords, | ||
638 | .entryStart = LT_KERNEL, | ||
639 | .needsBootPrefix = 1, | ||
640 | .argsInQuotes = 1, | ||
641 | .maxTitleLength = 15, | ||
642 | .mbAllowExtraInitRds = 1, | ||
643 | .titlePosition = 1, | ||
644 | niro | 532 | }; |
645 | |||
646 | struct configFileInfo siloConfigType = { | ||
647 | niro | 3002 | .defaultConfig = "/etc/silo.conf", |
648 | .keywords = siloKeywords, | ||
649 | .entryStart = LT_KERNEL, | ||
650 | .needsBootPrefix = 1, | ||
651 | .argsInQuotes = 1, | ||
652 | .maxTitleLength = 15, | ||
653 | .titlePosition = 1, | ||
654 | niro | 532 | }; |
655 | |||
656 | struct configFileInfo ziplConfigType = { | ||
657 | niro | 3002 | .defaultConfig = "/etc/zipl.conf", |
658 | .keywords = ziplKeywords, | ||
659 | .entryStart = LT_TITLE, | ||
660 | .argsInQuotes = 1, | ||
661 | .titleBracketed = 1, | ||
662 | niro | 532 | }; |
663 | |||
664 | niro | 914 | struct configFileInfo extlinuxConfigType = { |
665 | niro | 3002 | .defaultConfig = "/boot/extlinux/extlinux.conf", |
666 | .keywords = extlinuxKeywords, | ||
667 | .caseInsensitive = 1, | ||
668 | .entryStart = LT_TITLE, | ||
669 | .needsBootPrefix = 1, | ||
670 | .maxTitleLength = 255, | ||
671 | .mbAllowExtraInitRds = 1, | ||
672 | .defaultIsUnquoted = 1, | ||
673 | .titlePosition = 1, | ||
674 | niro | 914 | }; |
675 | |||
676 | niro | 532 | struct grubConfig { |
677 | niro | 3002 | struct singleLine *theLines; |
678 | struct singleEntry *entries; | ||
679 | char *primaryIndent; | ||
680 | char *secondaryIndent; | ||
681 | int defaultImage; /* -1 if none specified -- this value is | ||
682 | * written out, overriding original */ | ||
683 | int fallbackImage; /* just like defaultImage */ | ||
684 | int flags; | ||
685 | struct configFileInfo *cfi; | ||
686 | niro | 3019 | int isModified; /* assumes only one entry added |
687 | per invocation of grubby */ | ||
688 | niro | 532 | }; |
689 | |||
690 | niro | 1156 | blkid_cache blkid; |
691 | |||
692 | niro | 3002 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index); |
693 | struct singleEntry *findEntryByPath(struct grubConfig *cfg, | ||
694 | const char *path, const char *prefix, | ||
695 | int *index); | ||
696 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, | ||
697 | int *index); | ||
698 | static int readFile(int fd, char **bufPtr); | ||
699 | static void lineInit(struct singleLine *line); | ||
700 | struct singleLine *lineDup(struct singleLine *line); | ||
701 | static void lineFree(struct singleLine *line); | ||
702 | static int lineWrite(FILE * out, struct singleLine *line, | ||
703 | struct configFileInfo *cfi); | ||
704 | static int getNextLine(char **bufPtr, struct singleLine *line, | ||
705 | struct configFileInfo *cfi); | ||
706 | niro | 3138 | static size_t getRootSpecifier(const char *str); |
707 | niro | 3002 | static void requote(struct singleLine *line, struct configFileInfo *cfi); |
708 | static void insertElement(struct singleLine *line, | ||
709 | const char *item, int insertHere, | ||
710 | struct configFileInfo *cfi); | ||
711 | static void removeElement(struct singleLine *line, int removeHere); | ||
712 | static struct keywordTypes *getKeywordByType(enum lineType_e type, | ||
713 | struct configFileInfo *cfi); | ||
714 | static enum lineType_e getTypeByKeyword(char *keyword, | ||
715 | struct configFileInfo *cfi); | ||
716 | static struct singleLine *getLineByType(enum lineType_e type, | ||
717 | struct singleLine *line); | ||
718 | static int checkForExtLinux(struct grubConfig *config); | ||
719 | struct singleLine *addLineTmpl(struct singleEntry *entry, | ||
720 | struct singleLine *tmplLine, | ||
721 | struct singleLine *prevLine, | ||
722 | const char *val, struct configFileInfo *cfi); | ||
723 | struct singleLine *addLine(struct singleEntry *entry, | ||
724 | struct configFileInfo *cfi, | ||
725 | enum lineType_e type, char *defaultIndent, | ||
726 | const char *val); | ||
727 | niro | 532 | |
728 | niro | 3002 | static char *sdupprintf(const char *format, ...) |
729 | niro | 532 | #ifdef __GNUC__ |
730 | niro | 3002 | __attribute__ ((format(printf, 1, 2))); |
731 | niro | 532 | #else |
732 | niro | 3002 | ; |
733 | niro | 532 | #endif |
734 | |||
735 | niro | 3002 | static char *sdupprintf(const char *format, ...) |
736 | { | ||
737 | char *buf = NULL; | ||
738 | char c; | ||
739 | va_list args; | ||
740 | size_t size = 0; | ||
741 | va_start(args, format); | ||
742 | niro | 532 | |
743 | niro | 3002 | /* XXX requires C99 vsnprintf behavior */ |
744 | size = vsnprintf(&c, 1, format, args) + 1; | ||
745 | if (size == -1) { | ||
746 | printf("ERROR: vsnprintf behavior is not C99\n"); | ||
747 | abort(); | ||
748 | } | ||
749 | niro | 532 | |
750 | niro | 3002 | va_end(args); |
751 | va_start(args, format); | ||
752 | niro | 532 | |
753 | niro | 3002 | buf = malloc(size); |
754 | if (buf == NULL) | ||
755 | return NULL; | ||
756 | vsnprintf(buf, size, format, args); | ||
757 | va_end(args); | ||
758 | |||
759 | return buf; | ||
760 | niro | 532 | } |
761 | |||
762 | niro | 3003 | static inline int |
763 | kwcmp(struct keywordTypes *kw, const char * label, int case_insensitive) | ||
764 | { | ||
765 | int kwl = strlen(kw->key); | ||
766 | int ll = strlen(label); | ||
767 | int rc; | ||
768 | int (*snc)(const char *s1, const char *s2, size_t n) = | ||
769 | case_insensitive ? strncasecmp : strncmp; | ||
770 | int (*sc)(const char *s1, const char *s2) = | ||
771 | case_insensitive ? strcasecmp : strcmp; | ||
772 | |||
773 | rc = snc(kw->key, label, kwl); | ||
774 | if (rc) | ||
775 | return rc; | ||
776 | |||
777 | for (int i = kwl; i < ll; i++) { | ||
778 | if (isspace(label[i])) | ||
779 | return 0; | ||
780 | if (kw->separatorChar && label[i] == kw->separatorChar) | ||
781 | return 0; | ||
782 | else if (kw->nextChar && label[i] == kw->nextChar) | ||
783 | return 0; | ||
784 | return sc(kw->key+kwl, label+kwl); | ||
785 | } | ||
786 | return 0; | ||
787 | } | ||
788 | |||
789 | niro | 1940 | static enum lineType_e preferredLineType(enum lineType_e type, |
790 | niro | 3002 | struct configFileInfo *cfi) |
791 | { | ||
792 | if (isEfi && cfi == &grub2ConfigType) { | ||
793 | switch (type) { | ||
794 | case LT_KERNEL: | ||
795 | return isEfiOnly ? LT_KERNEL : LT_KERNEL_EFI; | ||
796 | case LT_INITRD: | ||
797 | return isEfiOnly ? LT_INITRD : LT_INITRD_EFI; | ||
798 | default: | ||
799 | return type; | ||
800 | } | ||
801 | niro | 2683 | #if defined(__i386__) || defined(__x86_64__) |
802 | niro | 3002 | } else if (cfi == &grub2ConfigType) { |
803 | switch (type) { | ||
804 | case LT_KERNEL: | ||
805 | return LT_KERNEL_16; | ||
806 | case LT_INITRD: | ||
807 | return LT_INITRD_16; | ||
808 | default: | ||
809 | return type; | ||
810 | } | ||
811 | #endif | ||
812 | niro | 2683 | } |
813 | niro | 3002 | return type; |
814 | niro | 1940 | } |
815 | |||
816 | niro | 3002 | static struct keywordTypes *getKeywordByType(enum lineType_e type, |
817 | struct configFileInfo *cfi) | ||
818 | { | ||
819 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { | ||
820 | if (kw->type == type) | ||
821 | return kw; | ||
822 | } | ||
823 | return NULL; | ||
824 | niro | 914 | } |
825 | |||
826 | niro | 3002 | static char *getKeyByType(enum lineType_e type, struct configFileInfo *cfi) |
827 | { | ||
828 | struct keywordTypes *kt = getKeywordByType(type, cfi); | ||
829 | if (kt) | ||
830 | return kt->key; | ||
831 | return "unknown"; | ||
832 | niro | 1696 | } |
833 | |||
834 | niro | 3002 | static char *getpathbyspec(char *device) |
835 | { | ||
836 | if (!blkid) | ||
837 | blkid_get_cache(&blkid, NULL); | ||
838 | niro | 914 | |
839 | niro | 3002 | return blkid_get_devname(blkid, device, NULL); |
840 | niro | 914 | } |
841 | |||
842 | niro | 3002 | static char *getuuidbydev(char *device) |
843 | { | ||
844 | if (!blkid) | ||
845 | blkid_get_cache(&blkid, NULL); | ||
846 | niro | 1156 | |
847 | niro | 3002 | return blkid_get_tag_value(blkid, "UUID", device); |
848 | niro | 1156 | } |
849 | |||
850 | niro | 3002 | static enum lineType_e getTypeByKeyword(char *keyword, |
851 | struct configFileInfo *cfi) | ||
852 | { | ||
853 | for (struct keywordTypes * kw = cfi->keywords; kw->key; kw++) { | ||
854 | niro | 3003 | if (!kwcmp(kw, keyword, cfi->caseInsensitive)) |
855 | return kw->type; | ||
856 | niro | 2056 | } |
857 | niro | 3002 | return LT_UNKNOWN; |
858 | niro | 914 | } |
859 | |||
860 | niro | 3002 | static struct singleLine *getLineByType(enum lineType_e type, |
861 | struct singleLine *line) | ||
862 | { | ||
863 | dbgPrintf("getLineByType(%d): ", type); | ||
864 | for (; line; line = line->next) { | ||
865 | dbgPrintf("%d:%s ", line->type, | ||
866 | line->numElements ? line->elements[0]. | ||
867 | item : "(empty)"); | ||
868 | if (line->type & type) | ||
869 | break; | ||
870 | } | ||
871 | dbgPrintf(line ? "\n" : " (failed)\n"); | ||
872 | return line; | ||
873 | niro | 914 | } |
874 | |||
875 | niro | 3002 | static int isBracketedTitle(struct singleLine *line) |
876 | { | ||
877 | if (line->numElements == 1 && *line->elements[0].item == '[') { | ||
878 | int len = strlen(line->elements[0].item); | ||
879 | if (*(line->elements[0].item + len - 1) == ']') { | ||
880 | /* FIXME: this is a hack... */ | ||
881 | if (strcmp(line->elements[0].item, "[defaultboot]")) { | ||
882 | return 1; | ||
883 | } | ||
884 | } | ||
885 | } | ||
886 | return 0; | ||
887 | niro | 532 | } |
888 | |||
889 | niro | 3002 | static int isEntryStart(struct singleLine *line, struct configFileInfo *cfi) |
890 | { | ||
891 | return line->type == cfi->entryStart || line->type == LT_OTHER || | ||
892 | (cfi->titleBracketed && isBracketedTitle(line)); | ||
893 | niro | 532 | } |
894 | |||
895 | /* extract the title from within brackets (for zipl) */ | ||
896 | niro | 3002 | static char *extractTitle(struct grubConfig *cfg, struct singleLine *line) |
897 | { | ||
898 | /* bracketed title... let's extract it */ | ||
899 | char *title = NULL; | ||
900 | if (line->type == LT_TITLE) { | ||
901 | char *tmp = line->elements[cfg->cfi->titlePosition].item; | ||
902 | if (cfg->cfi->titleBracketed) { | ||
903 | tmp++; | ||
904 | title = strdup(tmp); | ||
905 | *(title + strlen(title) - 1) = '\0'; | ||
906 | } else { | ||
907 | title = strdup(tmp); | ||
908 | } | ||
909 | } else if (line->type == LT_MENUENTRY) | ||
910 | title = strdup(line->elements[1].item); | ||
911 | else | ||
912 | return NULL; | ||
913 | return title; | ||
914 | niro | 532 | } |
915 | |||
916 | niro | 3002 | static int readFile(int fd, char **bufPtr) |
917 | { | ||
918 | int alloced = 0, size = 0, i = 0; | ||
919 | char *buf = NULL; | ||
920 | niro | 532 | |
921 | niro | 3002 | do { |
922 | size += i; | ||
923 | if ((size + 1024) > alloced) { | ||
924 | alloced += 4096; | ||
925 | buf = realloc(buf, alloced + 1); | ||
926 | } | ||
927 | } while ((i = read(fd, buf + size, 1024)) > 0); | ||
928 | |||
929 | if (i < 0) { | ||
930 | fprintf(stderr, _("error reading input: %s\n"), | ||
931 | strerror(errno)); | ||
932 | free(buf); | ||
933 | return 1; | ||
934 | niro | 532 | } |
935 | |||
936 | niro | 3002 | buf = realloc(buf, size + 2); |
937 | if (size == 0) | ||
938 | buf[size++] = '\n'; | ||
939 | else if (buf[size - 1] != '\n') | ||
940 | buf[size++] = '\n'; | ||
941 | buf[size] = '\0'; | ||
942 | niro | 532 | |
943 | niro | 3002 | *bufPtr = buf; |
944 | niro | 532 | |
945 | niro | 3002 | return 0; |
946 | niro | 532 | } |
947 | |||
948 | niro | 3002 | static void lineInit(struct singleLine *line) |
949 | { | ||
950 | niro | 3003 | line->type = LT_UNIDENTIFIED; |
951 | niro | 3002 | line->indent = NULL; |
952 | line->elements = NULL; | ||
953 | line->numElements = 0; | ||
954 | line->next = NULL; | ||
955 | niro | 532 | } |
956 | |||
957 | niro | 3002 | struct singleLine *lineDup(struct singleLine *line) |
958 | { | ||
959 | struct singleLine *newLine = malloc(sizeof(*newLine)); | ||
960 | niro | 914 | |
961 | niro | 3002 | newLine->indent = strdup(line->indent); |
962 | newLine->next = NULL; | ||
963 | newLine->type = line->type; | ||
964 | newLine->numElements = line->numElements; | ||
965 | newLine->elements = malloc(sizeof(*newLine->elements) * | ||
966 | newLine->numElements); | ||
967 | niro | 914 | |
968 | niro | 3002 | for (int i = 0; i < newLine->numElements; i++) { |
969 | newLine->elements[i].indent = strdup(line->elements[i].indent); | ||
970 | newLine->elements[i].item = strdup(line->elements[i].item); | ||
971 | } | ||
972 | niro | 914 | |
973 | niro | 3002 | return newLine; |
974 | niro | 914 | } |
975 | |||
976 | niro | 3002 | static void lineFree(struct singleLine *line) |
977 | { | ||
978 | if (line->indent) | ||
979 | free(line->indent); | ||
980 | niro | 532 | |
981 | niro | 3002 | for (int i = 0; i < line->numElements; i++) { |
982 | free(line->elements[i].item); | ||
983 | free(line->elements[i].indent); | ||
984 | } | ||
985 | niro | 532 | |
986 | niro | 3002 | if (line->elements) |
987 | free(line->elements); | ||
988 | lineInit(line); | ||
989 | niro | 532 | } |
990 | |||
991 | niro | 3002 | static int lineWrite(FILE * out, struct singleLine *line, |
992 | struct configFileInfo *cfi) | ||
993 | { | ||
994 | if (fprintf(out, "%s", line->indent) == -1) | ||
995 | return -1; | ||
996 | niro | 532 | |
997 | niro | 3002 | for (int i = 0; i < line->numElements; i++) { |
998 | /* Need to handle this, because we strip the quotes from | ||
999 | * menuentry when read it. */ | ||
1000 | if (line->type == LT_MENUENTRY && i == 1) { | ||
1001 | if (!isquote(*line->elements[i].item)) { | ||
1002 | int substring = 0; | ||
1003 | /* If the line contains nested quotes, we did | ||
1004 | * not strip the "interna" quotes and we must | ||
1005 | * use the right quotes again when writing | ||
1006 | * the updated file. */ | ||
1007 | for (int j = i; j < line->numElements; j++) { | ||
1008 | if (strchr(line->elements[i].item, '\'') | ||
1009 | != NULL) { | ||
1010 | substring = 1; | ||
1011 | fprintf(out, "\"%s\"", | ||
1012 | line->elements[i].item); | ||
1013 | break; | ||
1014 | } | ||
1015 | } | ||
1016 | if (!substring) | ||
1017 | fprintf(out, "\'%s\'", | ||
1018 | line->elements[i].item); | ||
1019 | } else { | ||
1020 | fprintf(out, "%s", line->elements[i].item); | ||
1021 | } | ||
1022 | fprintf(out, "%s", line->elements[i].indent); | ||
1023 | |||
1024 | continue; | ||
1025 | niro | 2989 | } |
1026 | niro | 1801 | |
1027 | niro | 3002 | if (i == 1 && line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1028 | if (fputc('"', out) == EOF) | ||
1029 | return -1; | ||
1030 | |||
1031 | if (fprintf(out, "%s", line->elements[i].item) == -1) | ||
1032 | return -1; | ||
1033 | niro | 3003 | if (i < line->numElements - 1 || line->type == LT_SET_VARIABLE) |
1034 | niro | 3002 | if (fprintf(out, "%s", line->elements[i].indent) == -1) |
1035 | return -1; | ||
1036 | niro | 1801 | } |
1037 | |||
1038 | niro | 3002 | if (line->type == LT_KERNELARGS && cfi->argsInQuotes) |
1039 | if (fputc('"', out) == EOF) | ||
1040 | return -1; | ||
1041 | niro | 532 | |
1042 | niro | 3002 | if (fprintf(out, "\n") == -1) |
1043 | return -1; | ||
1044 | niro | 532 | |
1045 | niro | 3002 | return 0; |
1046 | niro | 532 | } |
1047 | |||
1048 | /* we've guaranteed that the buffer ends w/ \n\0 */ | ||
1049 | niro | 3002 | static int getNextLine(char **bufPtr, struct singleLine *line, |
1050 | struct configFileInfo *cfi) | ||
1051 | { | ||
1052 | char *end; | ||
1053 | char *start = *bufPtr; | ||
1054 | char *chptr; | ||
1055 | int elementsAlloced = 0; | ||
1056 | struct lineElement *element; | ||
1057 | int first = 1; | ||
1058 | niro | 532 | |
1059 | niro | 3002 | lineFree(line); |
1060 | niro | 532 | |
1061 | niro | 3002 | end = strchr(start, '\n'); |
1062 | *end = '\0'; | ||
1063 | *bufPtr = end + 1; | ||
1064 | niro | 532 | |
1065 | niro | 3002 | for (chptr = start; *chptr && isspace(*chptr); chptr++) ; |
1066 | niro | 532 | |
1067 | niro | 3002 | line->indent = strndup(start, chptr - start); |
1068 | start = chptr; | ||
1069 | niro | 532 | |
1070 | niro | 3002 | while (start < end) { |
1071 | /* we know !isspace(*start) */ | ||
1072 | niro | 532 | |
1073 | niro | 3002 | if (elementsAlloced == line->numElements) { |
1074 | elementsAlloced += 5; | ||
1075 | line->elements = realloc(line->elements, | ||
1076 | sizeof(*line->elements) * | ||
1077 | elementsAlloced); | ||
1078 | } | ||
1079 | niro | 532 | |
1080 | niro | 3002 | element = line->elements + line->numElements; |
1081 | niro | 532 | |
1082 | niro | 3002 | chptr = start; |
1083 | while (*chptr && !isspace(*chptr)) { | ||
1084 | if (first && *chptr == '=') | ||
1085 | break; | ||
1086 | chptr++; | ||
1087 | } | ||
1088 | niro | 3003 | if (line->type == LT_UNIDENTIFIED) |
1089 | line->type = getTypeByKeyword(start, cfi); | ||
1090 | niro | 3002 | element->item = strndup(start, chptr - start); |
1091 | start = chptr; | ||
1092 | niro | 532 | |
1093 | niro | 3002 | /* lilo actually accepts the pathological case of |
1094 | * append = " foo " */ | ||
1095 | if (*start == '=') | ||
1096 | chptr = start + 1; | ||
1097 | else | ||
1098 | chptr = start; | ||
1099 | niro | 532 | |
1100 | niro | 3002 | do { |
1101 | for (; *chptr && isspace(*chptr); chptr++) ; | ||
1102 | if (*chptr == '=') | ||
1103 | chptr = chptr + 1; | ||
1104 | } while (isspace(*chptr)); | ||
1105 | niro | 532 | |
1106 | niro | 3002 | element->indent = strndup(start, chptr - start); |
1107 | start = chptr; | ||
1108 | niro | 532 | |
1109 | niro | 3002 | line->numElements++; |
1110 | first = 0; | ||
1111 | } | ||
1112 | niro | 532 | |
1113 | niro | 3002 | if (!line->numElements) |
1114 | line->type = LT_WHITESPACE; | ||
1115 | else { | ||
1116 | line->type = getTypeByKeyword(line->elements[0].item, cfi); | ||
1117 | if (line->type == LT_UNKNOWN) { | ||
1118 | /* zipl does [title] instead of something reasonable | ||
1119 | * like all the other boot loaders. kind of ugly */ | ||
1120 | if (cfi->titleBracketed && isBracketedTitle(line)) { | ||
1121 | line->type = LT_TITLE; | ||
1122 | } | ||
1123 | niro | 532 | |
1124 | niro | 3002 | /* this is awkward, but we need to be able to handle |
1125 | * keywords that begin with a # (specifically for | ||
1126 | * #boot in grub.conf), but still make comments lines | ||
1127 | * with no elements (everything stored in the indent | ||
1128 | */ | ||
1129 | if (*line->elements[0].item == '#') { | ||
1130 | char *fullLine; | ||
1131 | int len; | ||
1132 | niro | 532 | |
1133 | niro | 3002 | len = strlen(line->indent); |
1134 | for (int i = 0; i < line->numElements; i++) | ||
1135 | len += strlen(line->elements[i].item) + | ||
1136 | strlen(line->elements[i].indent); | ||
1137 | niro | 532 | |
1138 | niro | 3002 | fullLine = malloc(len + 1); |
1139 | strcpy(fullLine, line->indent); | ||
1140 | free(line->indent); | ||
1141 | line->indent = fullLine; | ||
1142 | niro | 532 | |
1143 | niro | 3002 | for (int i = 0; i < line->numElements; i++) { |
1144 | strcat(fullLine, | ||
1145 | line->elements[i].item); | ||
1146 | strcat(fullLine, | ||
1147 | line->elements[i].indent); | ||
1148 | free(line->elements[i].item); | ||
1149 | free(line->elements[i].indent); | ||
1150 | } | ||
1151 | niro | 532 | |
1152 | niro | 3002 | line->type = LT_WHITESPACE; |
1153 | line->numElements = 0; | ||
1154 | } | ||
1155 | niro | 3003 | } else if (line->type == LT_INITRD) { |
1156 | niro | 3002 | struct keywordTypes *kw; |
1157 | niro | 914 | |
1158 | niro | 3002 | kw = getKeywordByType(line->type, cfi); |
1159 | niro | 914 | |
1160 | niro | 3002 | /* space isn't the only separator, we need to split |
1161 | * elements up more | ||
1162 | */ | ||
1163 | if (!isspace(kw->separatorChar)) { | ||
1164 | char indent[2] = ""; | ||
1165 | indent[0] = kw->separatorChar; | ||
1166 | for (int i = 1; i < line->numElements; i++) { | ||
1167 | char *p; | ||
1168 | int numNewElements; | ||
1169 | niro | 914 | |
1170 | niro | 3002 | numNewElements = 0; |
1171 | p = line->elements[i].item; | ||
1172 | while (*p != '\0') { | ||
1173 | if (*p == kw->separatorChar) | ||
1174 | numNewElements++; | ||
1175 | p++; | ||
1176 | } | ||
1177 | if (line->numElements + | ||
1178 | numNewElements >= elementsAlloced) { | ||
1179 | elementsAlloced += | ||
1180 | numNewElements + 5; | ||
1181 | line->elements = | ||
1182 | realloc(line->elements, | ||
1183 | sizeof(*line-> | ||
1184 | elements) * | ||
1185 | elementsAlloced); | ||
1186 | } | ||
1187 | niro | 914 | |
1188 | niro | 3002 | for (int j = line->numElements; j > i; |
1189 | j--) { | ||
1190 | line->elements[j + | ||
1191 | numNewElements] = | ||
1192 | line->elements[j]; | ||
1193 | } | ||
1194 | line->numElements += numNewElements; | ||
1195 | niro | 914 | |
1196 | niro | 3002 | p = line->elements[i].item; |
1197 | while (*p != '\0') { | ||
1198 | niro | 914 | |
1199 | niro | 3002 | while (*p != kw->separatorChar |
1200 | && *p != '\0') | ||
1201 | p++; | ||
1202 | if (*p == '\0') { | ||
1203 | break; | ||
1204 | } | ||
1205 | |||
1206 | line->elements[i + 1].indent = | ||
1207 | line->elements[i].indent; | ||
1208 | line->elements[i].indent = | ||
1209 | strdup(indent); | ||
1210 | *p++ = '\0'; | ||
1211 | i++; | ||
1212 | line->elements[i].item = | ||
1213 | strdup(p); | ||
1214 | } | ||
1215 | niro | 914 | } |
1216 | } | ||
1217 | niro | 3003 | } else if (line->type == LT_SET_VARIABLE) { |
1218 | /* and if it's a "set blah=" we need to split it | ||
1219 | * yet a third way to avoid rhbz# XXX FIXME :/ | ||
1220 | */ | ||
1221 | char *eq; | ||
1222 | int l; | ||
1223 | int numElements = line->numElements; | ||
1224 | struct lineElement *newElements; | ||
1225 | eq = strchr(line->elements[1].item, '='); | ||
1226 | if (!eq) | ||
1227 | return 0; | ||
1228 | l = eq - line->elements[1].item; | ||
1229 | if (eq[1] != 0) | ||
1230 | numElements++; | ||
1231 | newElements = calloc(numElements,sizeof (*newElements)); | ||
1232 | memcpy(&newElements[0], &line->elements[0], | ||
1233 | sizeof (newElements[0])); | ||
1234 | newElements[1].item = | ||
1235 | strndup(line->elements[1].item, l); | ||
1236 | newElements[1].indent = "="; | ||
1237 | *(eq++) = '\0'; | ||
1238 | newElements[2].item = strdup(eq); | ||
1239 | free(line->elements[1].item); | ||
1240 | if (line->elements[1].indent) | ||
1241 | newElements[2].indent = line->elements[1].indent; | ||
1242 | for (int i = 2; i < line->numElements; i++) { | ||
1243 | newElements[i+1].item = line->elements[i].item; | ||
1244 | newElements[i+1].indent = | ||
1245 | line->elements[i].indent; | ||
1246 | } | ||
1247 | free(line->elements); | ||
1248 | line->elements = newElements; | ||
1249 | line->numElements = numElements; | ||
1250 | niro | 914 | } |
1251 | niro | 532 | } |
1252 | |||
1253 | niro | 3002 | return 0; |
1254 | niro | 532 | } |
1255 | |||
1256 | niro | 2258 | static int isnumber(const char *s) |
1257 | { | ||
1258 | niro | 3002 | int i; |
1259 | for (i = 0; s[i] != '\0'; i++) | ||
1260 | if (s[i] < '0' || s[i] > '9') | ||
1261 | return 0; | ||
1262 | return i; | ||
1263 | niro | 2258 | } |
1264 | |||
1265 | niro | 3002 | static struct grubConfig *readConfig(const char *inName, |
1266 | struct configFileInfo *cfi) | ||
1267 | { | ||
1268 | int in; | ||
1269 | char *incoming = NULL, *head; | ||
1270 | int rc; | ||
1271 | int sawEntry = 0; | ||
1272 | int movedLine = 0; | ||
1273 | struct grubConfig *cfg; | ||
1274 | struct singleLine *last = NULL, *line, *defaultLine = NULL; | ||
1275 | char *end; | ||
1276 | struct singleEntry *entry = NULL; | ||
1277 | int len; | ||
1278 | char *buf; | ||
1279 | niro | 532 | |
1280 | niro | 3002 | if (inName == NULL) { |
1281 | printf("Could not find bootloader configuration\n"); | ||
1282 | exit(1); | ||
1283 | } else if (!strcmp(inName, "-")) { | ||
1284 | in = 0; | ||
1285 | } else { | ||
1286 | if ((in = open(inName, O_RDONLY)) < 0) { | ||
1287 | fprintf(stderr, _("error opening %s for read: %s\n"), | ||
1288 | inName, strerror(errno)); | ||
1289 | return NULL; | ||
1290 | } | ||
1291 | niro | 532 | } |
1292 | |||
1293 | niro | 3002 | rc = readFile(in, &incoming); |
1294 | close(in); | ||
1295 | if (rc) | ||
1296 | return NULL; | ||
1297 | niro | 532 | |
1298 | niro | 3002 | head = incoming; |
1299 | cfg = malloc(sizeof(*cfg)); | ||
1300 | cfg->primaryIndent = strdup(""); | ||
1301 | cfg->secondaryIndent = strdup("\t"); | ||
1302 | cfg->flags = GRUB_CONFIG_NO_DEFAULT; | ||
1303 | cfg->cfi = cfi; | ||
1304 | cfg->theLines = NULL; | ||
1305 | cfg->entries = NULL; | ||
1306 | cfg->fallbackImage = 0; | ||
1307 | niro | 3019 | cfg->isModified = 0; |
1308 | niro | 532 | |
1309 | niro | 3002 | /* copy everything we have */ |
1310 | while (*head) { | ||
1311 | line = malloc(sizeof(*line)); | ||
1312 | lineInit(line); | ||
1313 | niro | 532 | |
1314 | niro | 3002 | if (getNextLine(&head, line, cfi)) { |
1315 | free(line); | ||
1316 | /* XXX memory leak of everything in cfg */ | ||
1317 | return NULL; | ||
1318 | } | ||
1319 | niro | 532 | |
1320 | niro | 3002 | if (!sawEntry && line->numElements) { |
1321 | free(cfg->primaryIndent); | ||
1322 | cfg->primaryIndent = strdup(line->indent); | ||
1323 | } else if (line->numElements) { | ||
1324 | free(cfg->secondaryIndent); | ||
1325 | cfg->secondaryIndent = strdup(line->indent); | ||
1326 | } | ||
1327 | niro | 532 | |
1328 | niro | 3002 | if (isEntryStart(line, cfi) || (cfg->entries && !sawEntry)) { |
1329 | sawEntry = 1; | ||
1330 | if (!entry) { | ||
1331 | cfg->entries = malloc(sizeof(*entry)); | ||
1332 | entry = cfg->entries; | ||
1333 | } else { | ||
1334 | entry->next = malloc(sizeof(*entry)); | ||
1335 | entry = entry->next; | ||
1336 | } | ||
1337 | niro | 532 | |
1338 | niro | 3002 | entry->skip = 0; |
1339 | entry->multiboot = 0; | ||
1340 | entry->lines = NULL; | ||
1341 | entry->next = NULL; | ||
1342 | } | ||
1343 | niro | 532 | |
1344 | niro | 3002 | if (line->type == LT_SET_VARIABLE) { |
1345 | dbgPrintf("found 'set' command (%d elements): ", | ||
1346 | line->numElements); | ||
1347 | dbgPrintf("%s", line->indent); | ||
1348 | for (int i = 0; i < line->numElements; i++) | ||
1349 | dbgPrintf("\"%s\"%s", line->elements[i].item, | ||
1350 | line->elements[i].indent); | ||
1351 | dbgPrintf("\n"); | ||
1352 | struct keywordTypes *kwType = | ||
1353 | getKeywordByType(LT_DEFAULT, cfi); | ||
1354 | if (kwType && line->numElements == 3 | ||
1355 | && !strcmp(line->elements[1].item, kwType->key) | ||
1356 | niro | 3003 | && !is_special_grub2_variable( |
1357 | line->elements[2].item)) { | ||
1358 | niro | 3002 | dbgPrintf("Line sets default config\n"); |
1359 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; | ||
1360 | defaultLine = line; | ||
1361 | } | ||
1362 | } else if (iskernel(line->type)) { | ||
1363 | /* if by some freak chance this is multiboot and the | ||
1364 | * "module" lines came earlier in the template, make | ||
1365 | * sure to use LT_HYPER instead of LT_KERNEL now | ||
1366 | */ | ||
1367 | if (entry && entry->multiboot) | ||
1368 | line->type = LT_HYPER; | ||
1369 | niro | 914 | |
1370 | niro | 3002 | } else if (line->type == LT_MBMODULE) { |
1371 | /* go back and fix the LT_KERNEL line to indicate | ||
1372 | * LT_HYPER instead, now that we know this is a | ||
1373 | * multiboot entry. This only applies to grub, but | ||
1374 | * that's the only place we should find LT_MBMODULE | ||
1375 | * lines anyway. | ||
1376 | */ | ||
1377 | for (struct singleLine * l = entry->lines; l; | ||
1378 | l = l->next) { | ||
1379 | if (l->type == LT_HYPER) | ||
1380 | break; | ||
1381 | else if (iskernel(l->type)) { | ||
1382 | l->type = LT_HYPER; | ||
1383 | break; | ||
1384 | } | ||
1385 | } | ||
1386 | entry->multiboot = 1; | ||
1387 | niro | 914 | |
1388 | niro | 3002 | } else if (line->type == LT_HYPER) { |
1389 | entry->multiboot = 1; | ||
1390 | niro | 914 | |
1391 | niro | 3002 | } else if (line->type == LT_FALLBACK && line->numElements == 2) { |
1392 | cfg->fallbackImage = | ||
1393 | strtol(line->elements[1].item, &end, 10); | ||
1394 | if (*end) | ||
1395 | cfg->fallbackImage = -1; | ||
1396 | niro | 914 | |
1397 | niro | 3002 | } else if ((line->type == LT_DEFAULT && cfi->defaultIsUnquoted) |
1398 | || (line->type == LT_TITLE | ||
1399 | && line->numElements > 1)) { | ||
1400 | /* make the title/default a single argument (undoing | ||
1401 | * our parsing) */ | ||
1402 | len = 0; | ||
1403 | for (int i = 1; i < line->numElements; i++) { | ||
1404 | len += strlen(line->elements[i].item); | ||
1405 | len += strlen(line->elements[i].indent); | ||
1406 | } | ||
1407 | buf = malloc(len + 1); | ||
1408 | *buf = '\0'; | ||
1409 | niro | 532 | |
1410 | niro | 3002 | for (int i = 1; i < line->numElements; i++) { |
1411 | strcat(buf, line->elements[i].item); | ||
1412 | free(line->elements[i].item); | ||
1413 | niro | 532 | |
1414 | niro | 3002 | if ((i + 1) != line->numElements) { |
1415 | strcat(buf, line->elements[i].indent); | ||
1416 | free(line->elements[i].indent); | ||
1417 | } | ||
1418 | } | ||
1419 | niro | 532 | |
1420 | niro | 3002 | line->elements[1].indent = |
1421 | line->elements[line->numElements - 1].indent; | ||
1422 | line->elements[1].item = buf; | ||
1423 | line->numElements = 2; | ||
1424 | } else if (line->type == LT_MENUENTRY && line->numElements > 3) { | ||
1425 | /* let --remove-kernel="TITLE=what" work */ | ||
1426 | len = 0; | ||
1427 | char *extras; | ||
1428 | char *title; | ||
1429 | /* initially unseen value */ | ||
1430 | char quote_char = '\0'; | ||
1431 | niro | 914 | |
1432 | niro | 3002 | for (int i = 1; i < line->numElements; i++) { |
1433 | len += strlen(line->elements[i].item); | ||
1434 | len += strlen(line->elements[i].indent); | ||
1435 | } | ||
1436 | buf = malloc(len + 1); | ||
1437 | *buf = '\0'; | ||
1438 | niro | 1801 | |
1439 | niro | 3002 | /* allocate mem for extra flags. */ |
1440 | extras = malloc(len + 1); | ||
1441 | *extras = '\0'; | ||
1442 | niro | 1801 | |
1443 | niro | 3002 | /* get title. */ |
1444 | for (int i = 0; i < line->numElements; i++) { | ||
1445 | if (!strcmp | ||
1446 | (line->elements[i].item, "menuentry")) | ||
1447 | continue; | ||
1448 | if (isquote(*line->elements[i].item) | ||
1449 | && quote_char == '\0') { | ||
1450 | /* ensure we properly pair off quotes */ | ||
1451 | quote_char = *line->elements[i].item; | ||
1452 | title = line->elements[i].item + 1; | ||
1453 | } else { | ||
1454 | title = line->elements[i].item; | ||
1455 | } | ||
1456 | niro | 1801 | |
1457 | niro | 3002 | len = strlen(title); |
1458 | if (title[len - 1] == quote_char) { | ||
1459 | strncat(buf, title, len - 1); | ||
1460 | break; | ||
1461 | } else { | ||
1462 | strcat(buf, title); | ||
1463 | strcat(buf, line->elements[i].indent); | ||
1464 | } | ||
1465 | } | ||
1466 | niro | 1801 | |
1467 | niro | 3002 | /* get extras */ |
1468 | int count = 0; | ||
1469 | quote_char = '\0'; | ||
1470 | for (int i = 0; i < line->numElements; i++) { | ||
1471 | if (count >= 2) { | ||
1472 | strcat(extras, line->elements[i].item); | ||
1473 | strcat(extras, | ||
1474 | line->elements[i].indent); | ||
1475 | } | ||
1476 | niro | 1801 | |
1477 | niro | 3002 | if (!strcmp |
1478 | (line->elements[i].item, "menuentry")) | ||
1479 | continue; | ||
1480 | niro | 1801 | |
1481 | niro | 3002 | /* count ' or ", there should be two in menuentry line. */ |
1482 | if (isquote(*line->elements[i].item) | ||
1483 | && quote_char == '\0') { | ||
1484 | /* ensure we properly pair off quotes */ | ||
1485 | quote_char = *line->elements[i].item; | ||
1486 | count++; | ||
1487 | } | ||
1488 | niro | 1801 | |
1489 | niro | 3002 | len = strlen(line->elements[i].item); |
1490 | niro | 1801 | |
1491 | niro | 3002 | if (line->elements[i].item[len - 1] == |
1492 | quote_char) | ||
1493 | count++; | ||
1494 | niro | 1801 | |
1495 | niro | 3002 | /* ok, we get the final ' or ", others are extras. */ |
1496 | } | ||
1497 | line->elements[1].indent = | ||
1498 | line->elements[line->numElements - 2].indent; | ||
1499 | line->elements[1].item = buf; | ||
1500 | line->elements[2].indent = | ||
1501 | line->elements[line->numElements - 2].indent; | ||
1502 | line->elements[2].item = extras; | ||
1503 | line->numElements = 3; | ||
1504 | } else if (line->type == LT_KERNELARGS && cfi->argsInQuotes) { | ||
1505 | /* Strip off any " which may be present; they'll be | ||
1506 | * put back on write. This is one of the few (the | ||
1507 | * only?) places that grubby canonicalizes the output | ||
1508 | */ | ||
1509 | if (line->numElements >= 2) { | ||
1510 | int last, len; | ||
1511 | niro | 532 | |
1512 | niro | 3002 | if (isquote(*line->elements[1].item)) |
1513 | memmove(line->elements[1].item, | ||
1514 | line->elements[1].item + 1, | ||
1515 | strlen(line->elements[1].item + | ||
1516 | 1) + 1); | ||
1517 | niro | 532 | |
1518 | niro | 3002 | last = line->numElements - 1; |
1519 | len = strlen(line->elements[last].item) - 1; | ||
1520 | if (isquote(line->elements[last].item[len])) | ||
1521 | line->elements[last].item[len] = '\0'; | ||
1522 | } | ||
1523 | } | ||
1524 | niro | 532 | |
1525 | niro | 3002 | if (line->type == LT_DEFAULT && line->numElements == 2) { |
1526 | cfg->flags &= ~GRUB_CONFIG_NO_DEFAULT; | ||
1527 | defaultLine = line; | ||
1528 | } | ||
1529 | niro | 532 | |
1530 | niro | 3002 | /* If we find a generic config option which should live at the |
1531 | top of the file, move it there. Old versions of grubby were | ||
1532 | probably responsible for putting new images in the wrong | ||
1533 | place in front of it anyway. */ | ||
1534 | if (sawEntry && line->type == LT_GENERIC) { | ||
1535 | struct singleLine **l = &cfg->theLines; | ||
1536 | struct singleLine **last_nonws = &cfg->theLines; | ||
1537 | while (*l) { | ||
1538 | if ((*l)->type != LT_WHITESPACE) | ||
1539 | last_nonws = &((*l)->next); | ||
1540 | l = &((*l)->next); | ||
1541 | } | ||
1542 | line->next = *last_nonws; | ||
1543 | *last_nonws = line; | ||
1544 | movedLine = 1; | ||
1545 | continue; /* without setting 'last' */ | ||
1546 | } | ||
1547 | niro | 2692 | |
1548 | niro | 3002 | /* If a second line of whitespace happens after a generic |
1549 | * option which was moved, drop it. */ | ||
1550 | if (movedLine && line->type == LT_WHITESPACE | ||
1551 | && last->type == LT_WHITESPACE) { | ||
1552 | lineFree(line); | ||
1553 | free(line); | ||
1554 | movedLine = 0; | ||
1555 | continue; | ||
1556 | niro | 532 | } |
1557 | movedLine = 0; | ||
1558 | |||
1559 | niro | 3002 | if (sawEntry) { |
1560 | if (!entry->lines) | ||
1561 | entry->lines = line; | ||
1562 | else | ||
1563 | last->next = line; | ||
1564 | dbgPrintf("readConfig added %s to %p\n", | ||
1565 | getKeyByType(line->type, cfi), entry); | ||
1566 | niro | 1696 | |
1567 | niro | 3002 | /* we could have seen this outside of an entry... if |
1568 | * so, we ignore it like any other line we don't grok | ||
1569 | */ | ||
1570 | if (line->type == LT_ENTRY_END && sawEntry) | ||
1571 | sawEntry = 0; | ||
1572 | } else { | ||
1573 | if (!cfg->theLines) | ||
1574 | cfg->theLines = line; | ||
1575 | else | ||
1576 | last->next = line; | ||
1577 | dbgPrintf("readConfig added %s to cfg\n", | ||
1578 | getKeyByType(line->type, cfi)); | ||
1579 | } | ||
1580 | |||
1581 | last = line; | ||
1582 | niro | 532 | } |
1583 | |||
1584 | niro | 3002 | free(incoming); |
1585 | niro | 532 | |
1586 | niro | 3002 | dbgPrintf("defaultLine is %s\n", defaultLine ? "set" : "unset"); |
1587 | if (defaultLine) { | ||
1588 | if (defaultLine->numElements > 2 && | ||
1589 | cfi->defaultSupportSaved && | ||
1590 | !strncmp(defaultLine->elements[2].item, | ||
1591 | "\"${saved_entry}\"", 16)) { | ||
1592 | cfg->cfi->defaultIsSaved = 1; | ||
1593 | cfg->defaultImage = DEFAULT_SAVED_GRUB2; | ||
1594 | if (cfg->cfi->getEnv) { | ||
1595 | char *defTitle = | ||
1596 | cfi->getEnv(cfg->cfi, "saved_entry"); | ||
1597 | if (defTitle) { | ||
1598 | int index = 0; | ||
1599 | if (isnumber(defTitle)) { | ||
1600 | index = atoi(defTitle); | ||
1601 | entry = | ||
1602 | findEntryByIndex(cfg, | ||
1603 | index); | ||
1604 | } else { | ||
1605 | entry = | ||
1606 | findEntryByTitle(cfg, | ||
1607 | defTitle, | ||
1608 | &index); | ||
1609 | } | ||
1610 | if (entry) | ||
1611 | cfg->defaultImage = index; | ||
1612 | } | ||
1613 | } | ||
1614 | } else if (cfi->defaultIsVariable) { | ||
1615 | niro | 3003 | if (defaultLine->numElements == 2) { |
1616 | char *value = defaultLine->elements[1].item + 8; | ||
1617 | while (*value && (*value == '"' || | ||
1618 | *value == '\'' || | ||
1619 | *value == ' ' || | ||
1620 | *value == '\t')) | ||
1621 | value++; | ||
1622 | cfg->defaultImage = strtol(value, &end, 10); | ||
1623 | while (*end && (*end == '"' || *end == '\'' || | ||
1624 | *end == ' ' || *end == '\t')) | ||
1625 | end++; | ||
1626 | if (*end) | ||
1627 | niro | 3018 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1628 | niro | 3003 | } else if (defaultLine->numElements == 3) { |
1629 | char *value = defaultLine->elements[2].item; | ||
1630 | while (*value && (*value == '"' || | ||
1631 | *value == '\'' || | ||
1632 | *value == ' ' || | ||
1633 | *value == '\t')) | ||
1634 | value++; | ||
1635 | cfg->defaultImage = strtol(value, &end, 10); | ||
1636 | while (*end && (*end == '"' || *end == '\'' || | ||
1637 | *end == ' ' || *end == '\t')) | ||
1638 | end++; | ||
1639 | if (*end) | ||
1640 | niro | 3018 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1641 | niro | 3003 | } |
1642 | niro | 3002 | } else if (cfi->defaultSupportSaved && |
1643 | !strncmp(defaultLine->elements[1].item, "saved", | ||
1644 | 5)) { | ||
1645 | cfg->defaultImage = DEFAULT_SAVED; | ||
1646 | } else if (cfi->defaultIsIndex) { | ||
1647 | cfg->defaultImage = | ||
1648 | strtol(defaultLine->elements[1].item, &end, 10); | ||
1649 | if (*end) | ||
1650 | niro | 3018 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1651 | niro | 3002 | } else if (defaultLine->numElements >= 2) { |
1652 | int i = 0; | ||
1653 | while ((entry = findEntryByIndex(cfg, i))) { | ||
1654 | for (line = entry->lines; line; | ||
1655 | line = line->next) | ||
1656 | if (line->type == LT_TITLE) | ||
1657 | break; | ||
1658 | niro | 532 | |
1659 | niro | 3002 | if (!cfi->titleBracketed) { |
1660 | if (line && (line->numElements >= 2) && | ||
1661 | !strcmp(defaultLine->elements[1]. | ||
1662 | item, | ||
1663 | line->elements[1].item)) | ||
1664 | break; | ||
1665 | } else if (line) { | ||
1666 | if (!strcmp | ||
1667 | (defaultLine->elements[1].item, | ||
1668 | extractTitle(cfg, line))) | ||
1669 | break; | ||
1670 | } | ||
1671 | i++; | ||
1672 | entry = NULL; | ||
1673 | } | ||
1674 | |||
1675 | if (entry) { | ||
1676 | cfg->defaultImage = i; | ||
1677 | } else { | ||
1678 | niro | 3018 | cfg->defaultImage = NO_DEFAULT_ENTRY; |
1679 | niro | 3002 | } |
1680 | } | ||
1681 | } else if (cfg->cfi->defaultIsSaved && cfg->cfi->getEnv) { | ||
1682 | char *defTitle = cfi->getEnv(cfg->cfi, "saved_entry"); | ||
1683 | if (defTitle) { | ||
1684 | niro | 2252 | int index = 0; |
1685 | niro | 2258 | if (isnumber(defTitle)) { |
1686 | niro | 3002 | index = atoi(defTitle); |
1687 | entry = findEntryByIndex(cfg, index); | ||
1688 | niro | 2258 | } else { |
1689 | niro | 3002 | entry = findEntryByTitle(cfg, defTitle, &index); |
1690 | niro | 2258 | } |
1691 | niro | 2252 | if (entry) |
1692 | niro | 3002 | cfg->defaultImage = index; |
1693 | niro | 2252 | } |
1694 | niro | 3002 | } else { |
1695 | niro | 3018 | cfg->defaultImage = FIRST_ENTRY_INDEX; |
1696 | niro | 532 | } |
1697 | |||
1698 | niro | 3002 | return cfg; |
1699 | niro | 532 | } |
1700 | |||
1701 | niro | 3002 | static void writeDefault(FILE * out, char *indent, |
1702 | char *separator, struct grubConfig *cfg) | ||
1703 | { | ||
1704 | struct singleEntry *entry; | ||
1705 | struct singleLine *line; | ||
1706 | int i; | ||
1707 | niro | 532 | |
1708 | niro | 3002 | if (!cfg->defaultImage && cfg->flags == GRUB_CONFIG_NO_DEFAULT) |
1709 | return; | ||
1710 | niro | 532 | |
1711 | niro | 3002 | if (cfg->defaultImage == DEFAULT_SAVED) |
1712 | fprintf(out, "%sdefault%ssaved\n", indent, separator); | ||
1713 | else if (cfg->cfi->defaultIsSaved) { | ||
1714 | fprintf(out, "%sset default=\"${saved_entry}\"\n", indent); | ||
1715 | niro | 3018 | if (cfg->defaultImage >= FIRST_ENTRY_INDEX && cfg->cfi->setEnv) { |
1716 | niro | 3002 | char *title; |
1717 | niro | 3025 | int trueIndex, currentIndex; |
1718 | |||
1719 | trueIndex = 0; | ||
1720 | currentIndex = 0; | ||
1721 | |||
1722 | while ((entry = findEntryByIndex(cfg, currentIndex))) { | ||
1723 | if (!entry->skip) { | ||
1724 | if (trueIndex == cfg->defaultImage) { | ||
1725 | break; | ||
1726 | } | ||
1727 | trueIndex++; | ||
1728 | } | ||
1729 | currentIndex++; | ||
1730 | } | ||
1731 | niro | 3002 | line = getLineByType(LT_MENUENTRY, entry->lines); |
1732 | if (!line) | ||
1733 | line = getLineByType(LT_TITLE, entry->lines); | ||
1734 | if (line) { | ||
1735 | title = extractTitle(cfg, line); | ||
1736 | if (title) | ||
1737 | cfg->cfi->setEnv(cfg->cfi, | ||
1738 | "saved_entry", title); | ||
1739 | } | ||
1740 | } | ||
1741 | niro | 3018 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
1742 | niro | 3002 | if (cfg->cfi->defaultIsIndex) { |
1743 | if (cfg->cfi->defaultIsVariable) { | ||
1744 | fprintf(out, "%sset default=\"%d\"\n", indent, | ||
1745 | cfg->defaultImage); | ||
1746 | } else { | ||
1747 | fprintf(out, "%sdefault%s%d\n", indent, | ||
1748 | separator, cfg->defaultImage); | ||
1749 | } | ||
1750 | } else { | ||
1751 | int image = cfg->defaultImage; | ||
1752 | niro | 532 | |
1753 | niro | 3002 | entry = cfg->entries; |
1754 | while (entry && entry->skip) | ||
1755 | entry = entry->next; | ||
1756 | niro | 532 | |
1757 | niro | 3002 | i = 0; |
1758 | while (entry && i < image) { | ||
1759 | entry = entry->next; | ||
1760 | niro | 532 | |
1761 | niro | 3002 | while (entry && entry->skip) |
1762 | entry = entry->next; | ||
1763 | i++; | ||
1764 | } | ||
1765 | niro | 532 | |
1766 | niro | 3002 | if (!entry) |
1767 | return; | ||
1768 | niro | 532 | |
1769 | niro | 3002 | line = getLineByType(LT_TITLE, entry->lines); |
1770 | niro | 532 | |
1771 | niro | 3002 | if (line && line->numElements >= 2) |
1772 | fprintf(out, "%sdefault%s%s\n", indent, | ||
1773 | separator, line->elements[1].item); | ||
1774 | else if (line && (line->numElements == 1) | ||
1775 | && cfg->cfi->titleBracketed) { | ||
1776 | char *title = extractTitle(cfg, line); | ||
1777 | if (title) { | ||
1778 | fprintf(out, "%sdefault%s%s\n", indent, | ||
1779 | separator, title); | ||
1780 | free(title); | ||
1781 | } | ||
1782 | } | ||
1783 | niro | 2995 | } |
1784 | niro | 532 | } |
1785 | } | ||
1786 | |||
1787 | niro | 3002 | static int writeConfig(struct grubConfig *cfg, char *outName, |
1788 | const char *prefix) | ||
1789 | { | ||
1790 | FILE *out; | ||
1791 | struct singleLine *line; | ||
1792 | struct singleEntry *entry; | ||
1793 | char *tmpOutName; | ||
1794 | int needs = MAIN_DEFAULT; | ||
1795 | struct stat sb; | ||
1796 | int i; | ||
1797 | niro | 3135 | int rc = 0; |
1798 | niro | 532 | |
1799 | niro | 3002 | if (!strcmp(outName, "-")) { |
1800 | out = stdout; | ||
1801 | tmpOutName = NULL; | ||
1802 | } else { | ||
1803 | if (!lstat(outName, &sb) && S_ISLNK(sb.st_mode)) { | ||
1804 | char *buf; | ||
1805 | int len = 256; | ||
1806 | int rc; | ||
1807 | niro | 532 | |
1808 | niro | 3002 | /* most likely the symlink is relative, so change our |
1809 | directory to the dir of the symlink */ | ||
1810 | char *dir = strdupa(outName); | ||
1811 | rc = chdir(dirname(dir)); | ||
1812 | do { | ||
1813 | buf = alloca(len + 1); | ||
1814 | rc = readlink(basename(outName), buf, len); | ||
1815 | if (rc == len) | ||
1816 | len += 256; | ||
1817 | } while (rc == len); | ||
1818 | niro | 532 | |
1819 | niro | 3002 | if (rc < 0) { |
1820 | fprintf(stderr, | ||
1821 | _ | ||
1822 | ("grubby: error readlink link %s: %s\n"), | ||
1823 | outName, strerror(errno)); | ||
1824 | return 1; | ||
1825 | } | ||
1826 | niro | 532 | |
1827 | niro | 3002 | outName = buf; |
1828 | outName[rc] = '\0'; | ||
1829 | } | ||
1830 | |||
1831 | tmpOutName = alloca(strlen(outName) + 2); | ||
1832 | sprintf(tmpOutName, "%s-", outName); | ||
1833 | out = fopen(tmpOutName, "w"); | ||
1834 | if (!out) { | ||
1835 | fprintf(stderr, _("grubby: error creating %s: %s\n"), | ||
1836 | tmpOutName, strerror(errno)); | ||
1837 | return 1; | ||
1838 | } | ||
1839 | |||
1840 | if (!stat(outName, &sb)) { | ||
1841 | if (chmod(tmpOutName, sb.st_mode & ~(S_IFMT))) { | ||
1842 | fprintf(stderr, | ||
1843 | _ | ||
1844 | ("grubby: error setting perms on %s: %s\n"), | ||
1845 | tmpOutName, strerror(errno)); | ||
1846 | fclose(out); | ||
1847 | unlink(tmpOutName); | ||
1848 | return 1; | ||
1849 | } | ||
1850 | } | ||
1851 | niro | 532 | } |
1852 | |||
1853 | niro | 3002 | line = cfg->theLines; |
1854 | struct keywordTypes *defaultKw = getKeywordByType(LT_DEFAULT, cfg->cfi); | ||
1855 | while (line) { | ||
1856 | if (line->type == LT_SET_VARIABLE && defaultKw && | ||
1857 | line->numElements == 3 && | ||
1858 | !strcmp(line->elements[1].item, defaultKw->key) && | ||
1859 | !is_special_grub2_variable(line->elements[2].item)) { | ||
1860 | writeDefault(out, line->indent, | ||
1861 | line->elements[0].indent, cfg); | ||
1862 | needs &= ~MAIN_DEFAULT; | ||
1863 | } else if (line->type == LT_DEFAULT) { | ||
1864 | writeDefault(out, line->indent, | ||
1865 | line->elements[0].indent, cfg); | ||
1866 | needs &= ~MAIN_DEFAULT; | ||
1867 | } else if (line->type == LT_FALLBACK) { | ||
1868 | if (cfg->fallbackImage > -1) | ||
1869 | fprintf(out, "%s%s%s%d\n", line->indent, | ||
1870 | line->elements[0].item, | ||
1871 | line->elements[0].indent, | ||
1872 | cfg->fallbackImage); | ||
1873 | } else { | ||
1874 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1875 | fprintf(stderr, | ||
1876 | _("grubby: error writing %s: %s\n"), | ||
1877 | tmpOutName, strerror(errno)); | ||
1878 | fclose(out); | ||
1879 | unlink(tmpOutName); | ||
1880 | return 1; | ||
1881 | } | ||
1882 | } | ||
1883 | niro | 532 | |
1884 | niro | 3002 | line = line->next; |
1885 | niro | 532 | } |
1886 | |||
1887 | niro | 3002 | if (needs & MAIN_DEFAULT) { |
1888 | writeDefault(out, cfg->primaryIndent, "=", cfg); | ||
1889 | needs &= ~MAIN_DEFAULT; | ||
1890 | } | ||
1891 | niro | 532 | |
1892 | niro | 3002 | i = 0; |
1893 | while ((entry = findEntryByIndex(cfg, i++))) { | ||
1894 | if (entry->skip) | ||
1895 | continue; | ||
1896 | niro | 532 | |
1897 | niro | 3002 | line = entry->lines; |
1898 | while (line) { | ||
1899 | if (lineWrite(out, line, cfg->cfi) == -1) { | ||
1900 | fprintf(stderr, | ||
1901 | _("grubby: error writing %s: %s\n"), | ||
1902 | tmpOutName, strerror(errno)); | ||
1903 | fclose(out); | ||
1904 | unlink(tmpOutName); | ||
1905 | return 1; | ||
1906 | } | ||
1907 | line = line->next; | ||
1908 | } | ||
1909 | niro | 532 | } |
1910 | |||
1911 | niro | 3002 | if (tmpOutName) { |
1912 | niro | 3135 | /* write userspace buffers */ |
1913 | if (fflush(out)) | ||
1914 | rc = 1; | ||
1915 | |||
1916 | /* purge the write-back cache with fsync() */ | ||
1917 | if (fsync(fileno(out))) | ||
1918 | rc = 1; | ||
1919 | |||
1920 | if (fclose(out)) | ||
1921 | rc = 1; | ||
1922 | |||
1923 | if (rc == 0 && rename(tmpOutName, outName)) { | ||
1924 | unlink(tmpOutName); | ||
1925 | rc = 1; | ||
1926 | } | ||
1927 | |||
1928 | /* fsync() the destination directory after rename */ | ||
1929 | if (rc == 0) { | ||
1930 | int dirfd; | ||
1931 | |||
1932 | dirfd = open(dirname(strdupa(outName)), O_RDONLY); | ||
1933 | if (dirfd < 0) | ||
1934 | rc = 1; | ||
1935 | else if (fsync(dirfd)) | ||
1936 | rc = 1; | ||
1937 | |||
1938 | if (dirfd >= 0) | ||
1939 | close(dirfd); | ||
1940 | } | ||
1941 | |||
1942 | if (rc == 1) | ||
1943 | niro | 3002 | fprintf(stderr, |
1944 | niro | 3135 | _("grubby: error flushing data: %m\n")); |
1945 | niro | 532 | } |
1946 | |||
1947 | niro | 3135 | return rc; |
1948 | niro | 532 | } |
1949 | |||
1950 | niro | 3002 | static int numEntries(struct grubConfig *cfg) |
1951 | { | ||
1952 | int i = 0; | ||
1953 | struct singleEntry *entry; | ||
1954 | niro | 532 | |
1955 | niro | 3002 | entry = cfg->entries; |
1956 | while (entry) { | ||
1957 | if (!entry->skip) | ||
1958 | i++; | ||
1959 | entry = entry->next; | ||
1960 | } | ||
1961 | return i; | ||
1962 | niro | 532 | } |
1963 | |||
1964 | niro | 1156 | static char *findDiskForRoot() |
1965 | { | ||
1966 | niro | 3002 | int fd; |
1967 | char buf[65536]; | ||
1968 | char *devname; | ||
1969 | char *chptr; | ||
1970 | int rc; | ||
1971 | niro | 1156 | |
1972 | niro | 3002 | if ((fd = open(_PATH_MOUNTED, O_RDONLY)) < 0) { |
1973 | fprintf(stderr, "grubby: failed to open %s: %s\n", | ||
1974 | _PATH_MOUNTED, strerror(errno)); | ||
1975 | return NULL; | ||
1976 | } | ||
1977 | niro | 1156 | |
1978 | niro | 3002 | rc = read(fd, buf, sizeof(buf) - 1); |
1979 | if (rc <= 0) { | ||
1980 | fprintf(stderr, "grubby: failed to read %s: %s\n", | ||
1981 | _PATH_MOUNTED, strerror(errno)); | ||
1982 | close(fd); | ||
1983 | return NULL; | ||
1984 | } | ||
1985 | close(fd); | ||
1986 | buf[rc] = '\0'; | ||
1987 | chptr = buf; | ||
1988 | niro | 1156 | |
1989 | niro | 3002 | char *foundanswer = NULL; |
1990 | niro | 1841 | |
1991 | niro | 3002 | while (chptr && chptr != buf + rc) { |
1992 | devname = chptr; | ||
1993 | niro | 1156 | |
1994 | niro | 3002 | /* |
1995 | * The first column of a mtab entry is the device, but if the | ||
1996 | * entry is a special device it won't start with /, so move | ||
1997 | * on to the next line. | ||
1998 | */ | ||
1999 | if (*devname != '/') { | ||
2000 | chptr = strchr(chptr, '\n'); | ||
2001 | if (chptr) | ||
2002 | chptr++; | ||
2003 | continue; | ||
2004 | } | ||
2005 | niro | 1156 | |
2006 | niro | 3002 | /* Seek to the next space */ |
2007 | chptr = strchr(chptr, ' '); | ||
2008 | if (!chptr) { | ||
2009 | fprintf(stderr, "grubby: error parsing %s: %s\n", | ||
2010 | _PATH_MOUNTED, strerror(errno)); | ||
2011 | return NULL; | ||
2012 | } | ||
2013 | niro | 1156 | |
2014 | niro | 3002 | /* |
2015 | * The second column of a mtab entry is the mount point, we | ||
2016 | * are looking for '/' obviously. | ||
2017 | */ | ||
2018 | if (*(++chptr) == '/' && *(++chptr) == ' ') { | ||
2019 | /* remember the last / entry in mtab */ | ||
2020 | foundanswer = devname; | ||
2021 | } | ||
2022 | niro | 1156 | |
2023 | niro | 3002 | /* Next line */ |
2024 | chptr = strchr(chptr, '\n'); | ||
2025 | if (chptr) | ||
2026 | chptr++; | ||
2027 | } | ||
2028 | niro | 1156 | |
2029 | niro | 3002 | /* Return the last / entry found */ |
2030 | if (foundanswer) { | ||
2031 | chptr = strchr(foundanswer, ' '); | ||
2032 | *chptr = '\0'; | ||
2033 | return strdup(foundanswer); | ||
2034 | } | ||
2035 | niro | 1841 | |
2036 | niro | 3002 | return NULL; |
2037 | niro | 1156 | } |
2038 | |||
2039 | niro | 3002 | void printEntry(struct singleEntry *entry, FILE * f) |
2040 | { | ||
2041 | int i; | ||
2042 | struct singleLine *line; | ||
2043 | niro | 1736 | |
2044 | niro | 3002 | for (line = entry->lines; line; line = line->next) { |
2045 | log_message(f, "DBG: %s", line->indent); | ||
2046 | for (i = 0; i < line->numElements; i++) { | ||
2047 | /* Need to handle this, because we strip the quotes from | ||
2048 | * menuentry when read it. */ | ||
2049 | if (line->type == LT_MENUENTRY && i == 1) { | ||
2050 | if (!isquote(*line->elements[i].item)) | ||
2051 | log_message(f, "\'%s\'", | ||
2052 | line->elements[i].item); | ||
2053 | else | ||
2054 | log_message(f, "%s", | ||
2055 | line->elements[i].item); | ||
2056 | log_message(f, "%s", line->elements[i].indent); | ||
2057 | |||
2058 | continue; | ||
2059 | } | ||
2060 | |||
2061 | log_message(f, "%s%s", | ||
2062 | line->elements[i].item, | ||
2063 | line->elements[i].indent); | ||
2064 | } | ||
2065 | log_message(f, "\n"); | ||
2066 | niro | 1736 | } |
2067 | } | ||
2068 | |||
2069 | niro | 3002 | void notSuitablePrintf(struct singleEntry *entry, int okay, const char *fmt, |
2070 | ...) | ||
2071 | niro | 1736 | { |
2072 | niro | 3002 | static int once; |
2073 | va_list argp, argq; | ||
2074 | niro | 1736 | |
2075 | niro | 3002 | va_start(argp, fmt); |
2076 | niro | 2236 | |
2077 | niro | 3002 | va_copy(argq, argp); |
2078 | if (!once) { | ||
2079 | log_time(NULL); | ||
2080 | log_message(NULL, "command line: %s\n", saved_command_line); | ||
2081 | } | ||
2082 | log_message(NULL, "DBG: Image entry %s: ", | ||
2083 | okay ? "succeeded" : "failed"); | ||
2084 | log_vmessage(NULL, fmt, argq); | ||
2085 | niro | 2236 | |
2086 | niro | 3002 | printEntry(entry, NULL); |
2087 | va_end(argq); | ||
2088 | |||
2089 | if (!debug) { | ||
2090 | once = 1; | ||
2091 | va_end(argp); | ||
2092 | return; | ||
2093 | } | ||
2094 | |||
2095 | if (okay) { | ||
2096 | va_end(argp); | ||
2097 | return; | ||
2098 | } | ||
2099 | |||
2100 | if (!once) | ||
2101 | log_message(stderr, "DBG: command line: %s\n", | ||
2102 | saved_command_line); | ||
2103 | niro | 2236 | once = 1; |
2104 | niro | 3002 | fprintf(stderr, "DBG: Image entry failed: "); |
2105 | vfprintf(stderr, fmt, argp); | ||
2106 | printEntry(entry, stderr); | ||
2107 | niro | 2236 | va_end(argp); |
2108 | niro | 1736 | } |
2109 | |||
2110 | niro | 1745 | #define beginswith(s, c) ((s) && (s)[0] == (c)) |
2111 | |||
2112 | static int endswith(const char *s, char c) | ||
2113 | { | ||
2114 | int slen; | ||
2115 | |||
2116 | niro | 1750 | if (!s || !s[0]) |
2117 | niro | 1745 | return 0; |
2118 | slen = strlen(s) - 1; | ||
2119 | |||
2120 | return s[slen] == c; | ||
2121 | } | ||
2122 | |||
2123 | niro | 3139 | typedef struct { |
2124 | const char *start; | ||
2125 | size_t chars; | ||
2126 | } field; | ||
2127 | |||
2128 | static int iscomma(int c) | ||
2129 | { | ||
2130 | return c == ','; | ||
2131 | } | ||
2132 | |||
2133 | static int isequal(int c) | ||
2134 | { | ||
2135 | return c == '='; | ||
2136 | } | ||
2137 | |||
2138 | static field findField(const field *in, typeof(isspace) *isdelim, field *out) | ||
2139 | { | ||
2140 | field nxt = {}; | ||
2141 | size_t off = 0; | ||
2142 | |||
2143 | while (off < in->chars && isdelim(in->start[off])) | ||
2144 | off++; | ||
2145 | |||
2146 | if (off == in->chars) | ||
2147 | return nxt; | ||
2148 | |||
2149 | out->start = &in->start[off]; | ||
2150 | out->chars = 0; | ||
2151 | |||
2152 | while (off + out->chars < in->chars && !isdelim(out->start[out->chars])) | ||
2153 | out->chars++; | ||
2154 | |||
2155 | nxt.start = out->start + out->chars; | ||
2156 | nxt.chars = in->chars - off - out->chars; | ||
2157 | return nxt; | ||
2158 | } | ||
2159 | |||
2160 | static int fieldEquals(const field *in, const char *str) | ||
2161 | { | ||
2162 | return in->chars == strlen(str) && | ||
2163 | strncmp(in->start, str, in->chars) == 0; | ||
2164 | } | ||
2165 | |||
2166 | /* Parse /proc/mounts to determine the subvolume prefix. */ | ||
2167 | static size_t subvolPrefix(const char *str) | ||
2168 | { | ||
2169 | FILE *file = NULL; | ||
2170 | char *line = NULL; | ||
2171 | size_t prfx = 0; | ||
2172 | size_t size = 0; | ||
2173 | |||
2174 | file = fopen(mounts, "r"); | ||
2175 | if (!file) | ||
2176 | return 0; | ||
2177 | |||
2178 | for (ssize_t s; (s = getline(&line, &size, file)) >= 0; ) { | ||
2179 | field nxt = { line, s }; | ||
2180 | field dev = {}; | ||
2181 | field path = {}; | ||
2182 | field type = {}; | ||
2183 | field opts = {}; | ||
2184 | field opt = {}; | ||
2185 | |||
2186 | nxt = findField(&nxt, isspace, &dev); | ||
2187 | if (!nxt.start) | ||
2188 | continue; | ||
2189 | |||
2190 | nxt = findField(&nxt, isspace, &path); | ||
2191 | if (!nxt.start) | ||
2192 | continue; | ||
2193 | |||
2194 | nxt = findField(&nxt, isspace, &type); | ||
2195 | if (!nxt.start) | ||
2196 | continue; | ||
2197 | |||
2198 | nxt = findField(&nxt, isspace, &opts); | ||
2199 | if (!nxt.start) | ||
2200 | continue; | ||
2201 | |||
2202 | if (!fieldEquals(&type, "btrfs")) | ||
2203 | continue; | ||
2204 | |||
2205 | /* We have found a btrfs mount point. */ | ||
2206 | |||
2207 | nxt = opts; | ||
2208 | while ((nxt = findField(&nxt, iscomma, &opt)).start) { | ||
2209 | field key = {}; | ||
2210 | field val = {}; | ||
2211 | |||
2212 | opt = findField(&opt, isequal, &key); | ||
2213 | if (!opt.start) | ||
2214 | continue; | ||
2215 | |||
2216 | opt = findField(&opt, isequal, &val); | ||
2217 | if (!opt.start) | ||
2218 | continue; | ||
2219 | |||
2220 | if (!fieldEquals(&key, "subvol")) | ||
2221 | continue; | ||
2222 | |||
2223 | /* We have found a btrfs subvolume mount point. */ | ||
2224 | |||
2225 | if (strncmp(val.start, str, val.chars)) | ||
2226 | continue; | ||
2227 | |||
2228 | if (val.start[val.chars - 1] != '/' && | ||
2229 | str[val.chars] != '/') | ||
2230 | continue; | ||
2231 | |||
2232 | /* The subvolume mount point matches our input. */ | ||
2233 | |||
2234 | if (prfx < val.chars) | ||
2235 | prfx = val.chars; | ||
2236 | } | ||
2237 | } | ||
2238 | |||
2239 | dbgPrintf("%s(): str: '%s', prfx: '%s'\n", __FUNCTION__, str, prfx); | ||
2240 | |||
2241 | fclose(file); | ||
2242 | free(line); | ||
2243 | return prfx; | ||
2244 | } | ||
2245 | |||
2246 | niro | 3002 | int suitableImage(struct singleEntry *entry, const char *bootPrefix, |
2247 | int skipRemoved, int flags) | ||
2248 | { | ||
2249 | struct singleLine *line; | ||
2250 | char *fullName; | ||
2251 | int i; | ||
2252 | char *dev; | ||
2253 | niro | 3138 | size_t rs; |
2254 | niro | 3002 | char *rootdev; |
2255 | niro | 532 | |
2256 | niro | 3002 | if (skipRemoved && entry->skip) { |
2257 | notSuitablePrintf(entry, 0, "marked to skip\n"); | ||
2258 | return 0; | ||
2259 | } | ||
2260 | niro | 532 | |
2261 | niro | 3002 | line = |
2262 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, | ||
2263 | entry->lines); | ||
2264 | if (!line) { | ||
2265 | notSuitablePrintf(entry, 0, "no line found\n"); | ||
2266 | return 0; | ||
2267 | } | ||
2268 | if (line->numElements < 2) { | ||
2269 | notSuitablePrintf(entry, 0, "line has only %d elements\n", | ||
2270 | line->numElements); | ||
2271 | return 0; | ||
2272 | } | ||
2273 | niro | 914 | |
2274 | niro | 3002 | if (flags & GRUBBY_BADIMAGE_OKAY) { |
2275 | notSuitablePrintf(entry, 1, "\n"); | ||
2276 | return 1; | ||
2277 | } | ||
2278 | niro | 532 | |
2279 | niro | 3002 | fullName = alloca(strlen(bootPrefix) + |
2280 | strlen(line->elements[1].item) + 1); | ||
2281 | niro | 3138 | rs = getRootSpecifier(line->elements[1].item); |
2282 | niro | 3002 | int hasslash = endswith(bootPrefix, '/') || |
2283 | niro | 3138 | beginswith(line->elements[1].item + rs, '/'); |
2284 | niro | 3002 | sprintf(fullName, "%s%s%s", bootPrefix, hasslash ? "" : "/", |
2285 | niro | 3138 | line->elements[1].item + rs); |
2286 | niro | 3002 | if (access(fullName, R_OK)) { |
2287 | notSuitablePrintf(entry, 0, "access to %s failed\n", fullName); | ||
2288 | return 0; | ||
2289 | } | ||
2290 | for (i = 2; i < line->numElements; i++) | ||
2291 | if (!strncasecmp(line->elements[i].item, "root=", 5)) | ||
2292 | break; | ||
2293 | if (i < line->numElements) { | ||
2294 | dev = line->elements[i].item + 5; | ||
2295 | niro | 532 | } else { |
2296 | niro | 3002 | /* look for a lilo style LT_ROOT line */ |
2297 | line = getLineByType(LT_ROOT, entry->lines); | ||
2298 | niro | 532 | |
2299 | niro | 3002 | if (line && line->numElements >= 2) { |
2300 | dev = line->elements[1].item; | ||
2301 | } else { | ||
2302 | /* didn't succeed in finding a LT_ROOT, let's try | ||
2303 | * LT_KERNELARGS. grub+multiboot uses LT_MBMODULE | ||
2304 | * for the args, so check that too. | ||
2305 | */ | ||
2306 | line = | ||
2307 | getLineByType(LT_KERNELARGS | LT_MBMODULE, | ||
2308 | entry->lines); | ||
2309 | niro | 532 | |
2310 | niro | 3002 | /* failed to find one */ |
2311 | if (!line) { | ||
2312 | notSuitablePrintf(entry, 0, "no line found\n"); | ||
2313 | return 0; | ||
2314 | } | ||
2315 | |||
2316 | for (i = 1; i < line->numElements; i++) | ||
2317 | if (!strncasecmp | ||
2318 | (line->elements[i].item, "root=", 5)) | ||
2319 | break; | ||
2320 | if (i < line->numElements) | ||
2321 | dev = line->elements[i].item + 5; | ||
2322 | else { | ||
2323 | notSuitablePrintf(entry, 0, | ||
2324 | "no root= entry found\n"); | ||
2325 | /* it failed too... can't find root= */ | ||
2326 | return 0; | ||
2327 | } | ||
2328 | } | ||
2329 | niro | 532 | } |
2330 | |||
2331 | niro | 1736 | dev = getpathbyspec(dev); |
2332 | niro | 3002 | if (!getpathbyspec(dev)) { |
2333 | notSuitablePrintf(entry, 0, "can't find blkid entry for %s\n", | ||
2334 | dev); | ||
2335 | return 0; | ||
2336 | } else | ||
2337 | dev = getpathbyspec(dev); | ||
2338 | niro | 532 | |
2339 | niro | 3002 | rootdev = findDiskForRoot(); |
2340 | if (!rootdev) { | ||
2341 | notSuitablePrintf(entry, 0, "can't find root device\n"); | ||
2342 | return 0; | ||
2343 | } | ||
2344 | niro | 914 | |
2345 | niro | 3002 | if (!getuuidbydev(rootdev) || !getuuidbydev(dev)) { |
2346 | notSuitablePrintf(entry, 0, | ||
2347 | "uuid missing: rootdev %s, dev %s\n", | ||
2348 | getuuidbydev(rootdev), getuuidbydev(dev)); | ||
2349 | free(rootdev); | ||
2350 | return 0; | ||
2351 | } | ||
2352 | niro | 532 | |
2353 | niro | 3002 | if (strcmp(getuuidbydev(rootdev), getuuidbydev(dev))) { |
2354 | notSuitablePrintf(entry, 0, | ||
2355 | "uuid mismatch: rootdev %s, dev %s\n", | ||
2356 | getuuidbydev(rootdev), getuuidbydev(dev)); | ||
2357 | free(rootdev); | ||
2358 | return 0; | ||
2359 | } | ||
2360 | |||
2361 | niro | 1156 | free(rootdev); |
2362 | niro | 3002 | notSuitablePrintf(entry, 1, "\n"); |
2363 | niro | 532 | |
2364 | niro | 3002 | return 1; |
2365 | niro | 532 | } |
2366 | |||
2367 | /* returns the first match on or after the one pointed to by index (if index | ||
2368 | is not NULL) which is not marked as skip */ | ||
2369 | niro | 3002 | struct singleEntry *findEntryByPath(struct grubConfig *config, |
2370 | const char *kernel, const char *prefix, | ||
2371 | int *index) | ||
2372 | { | ||
2373 | struct singleEntry *entry = NULL; | ||
2374 | struct singleLine *line; | ||
2375 | int i; | ||
2376 | char *chptr; | ||
2377 | enum lineType_e checkType = LT_KERNEL; | ||
2378 | niro | 532 | |
2379 | niro | 3002 | if (isdigit(*kernel)) { |
2380 | int *indexVars = alloca(sizeof(*indexVars) * strlen(kernel)); | ||
2381 | niro | 532 | |
2382 | niro | 3002 | i = 0; |
2383 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
2384 | while (*chptr == ',') { | ||
2385 | i++; | ||
2386 | kernel = chptr + 1; | ||
2387 | indexVars[i] = strtol(kernel, &chptr, 10); | ||
2388 | } | ||
2389 | niro | 532 | |
2390 | niro | 3002 | if (*chptr) { |
2391 | /* can't parse it, bail */ | ||
2392 | return NULL; | ||
2393 | } | ||
2394 | niro | 532 | |
2395 | niro | 3002 | indexVars[i + 1] = -1; |
2396 | niro | 2718 | |
2397 | niro | 3002 | i = 0; |
2398 | if (index) { | ||
2399 | while (i < *index) { | ||
2400 | i++; | ||
2401 | if (indexVars[i] == -1) | ||
2402 | return NULL; | ||
2403 | } | ||
2404 | } | ||
2405 | |||
2406 | entry = findEntryByIndex(config, indexVars[i]); | ||
2407 | if (!entry) | ||
2408 | return NULL; | ||
2409 | |||
2410 | line = | ||
2411 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | | ||
2412 | LT_KERNEL_16, entry->lines); | ||
2413 | if (!line) | ||
2414 | return NULL; | ||
2415 | |||
2416 | if (index) | ||
2417 | *index = indexVars[i]; | ||
2418 | return entry; | ||
2419 | niro | 532 | } |
2420 | |||
2421 | niro | 3002 | if (!strcmp(kernel, "DEFAULT")) { |
2422 | if (index && *index > config->defaultImage) { | ||
2423 | entry = NULL; | ||
2424 | } else { | ||
2425 | entry = findEntryByIndex(config, config->defaultImage); | ||
2426 | if (entry && entry->skip) | ||
2427 | entry = NULL; | ||
2428 | else if (index) | ||
2429 | *index = config->defaultImage; | ||
2430 | } | ||
2431 | } else if (!strcmp(kernel, "ALL")) { | ||
2432 | if (index) | ||
2433 | i = *index; | ||
2434 | else | ||
2435 | i = 0; | ||
2436 | niro | 532 | |
2437 | niro | 3002 | while ((entry = findEntryByIndex(config, i))) { |
2438 | if (!entry->skip) | ||
2439 | break; | ||
2440 | i++; | ||
2441 | } | ||
2442 | niro | 532 | |
2443 | niro | 3002 | if (entry && index) |
2444 | *index = i; | ||
2445 | niro | 532 | } else { |
2446 | niro | 3002 | if (index) |
2447 | i = *index; | ||
2448 | else | ||
2449 | i = 0; | ||
2450 | niro | 532 | |
2451 | niro | 3002 | if (!strncmp(kernel, "TITLE=", 6)) { |
2452 | prefix = ""; | ||
2453 | checkType = LT_TITLE | LT_MENUENTRY; | ||
2454 | kernel += 6; | ||
2455 | } | ||
2456 | niro | 532 | |
2457 | niro | 3002 | for (entry = findEntryByIndex(config, i); entry; |
2458 | entry = entry->next, i++) { | ||
2459 | if (entry->skip) | ||
2460 | continue; | ||
2461 | niro | 532 | |
2462 | niro | 3002 | dbgPrintf("findEntryByPath looking for %d %s in %p\n", |
2463 | checkType, kernel, entry); | ||
2464 | niro | 532 | |
2465 | niro | 3002 | /* check all the lines matching checkType */ |
2466 | for (line = entry->lines; line; line = line->next) { | ||
2467 | enum lineType_e ct = checkType; | ||
2468 | if (entry->multiboot && checkType == LT_KERNEL) | ||
2469 | ct = LT_KERNEL | LT_KERNEL_EFI | | ||
2470 | LT_MBMODULE | LT_HYPER | | ||
2471 | LT_KERNEL_16; | ||
2472 | else if (checkType & LT_KERNEL) | ||
2473 | ct = checkType | LT_KERNEL_EFI | | ||
2474 | LT_KERNEL_16; | ||
2475 | line = getLineByType(ct, line); | ||
2476 | if (!line) | ||
2477 | break; /* not found in this entry */ | ||
2478 | niro | 532 | |
2479 | niro | 3002 | if (line && line->type != LT_MENUENTRY && |
2480 | line->numElements >= 2) { | ||
2481 | niro | 3138 | if (!strcmp(line->elements[1].item + |
2482 | getRootSpecifier( | ||
2483 | line->elements[1].item), | ||
2484 | kernel + strlen(prefix))) | ||
2485 | niro | 3002 | break; |
2486 | } | ||
2487 | if (line->type == LT_MENUENTRY && | ||
2488 | !strcmp(line->elements[1].item, kernel)) | ||
2489 | break; | ||
2490 | } | ||
2491 | niro | 532 | |
2492 | niro | 3002 | /* make sure this entry has a kernel identifier; this skips |
2493 | * non-Linux boot entries (could find netbsd etc, though, which is | ||
2494 | * unfortunate) | ||
2495 | */ | ||
2496 | if (line | ||
2497 | && getLineByType(LT_KERNEL | LT_HYPER | | ||
2498 | LT_KERNEL_EFI | LT_KERNEL_16, | ||
2499 | entry->lines)) | ||
2500 | break; /* found 'im! */ | ||
2501 | niro | 914 | } |
2502 | |||
2503 | niro | 3002 | if (index) |
2504 | *index = i; | ||
2505 | niro | 532 | } |
2506 | |||
2507 | niro | 3002 | return entry; |
2508 | niro | 532 | } |
2509 | |||
2510 | niro | 3002 | struct singleEntry *findEntryByTitle(struct grubConfig *cfg, char *title, |
2511 | int *index) | ||
2512 | { | ||
2513 | struct singleEntry *entry; | ||
2514 | struct singleLine *line; | ||
2515 | int i; | ||
2516 | char *newtitle; | ||
2517 | niro | 2252 | |
2518 | niro | 3002 | for (i = 0, entry = cfg->entries; entry; entry = entry->next, i++) { |
2519 | if (index && i < *index) | ||
2520 | continue; | ||
2521 | line = getLineByType(LT_TITLE, entry->lines); | ||
2522 | if (!line) | ||
2523 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
2524 | if (!line) | ||
2525 | continue; | ||
2526 | newtitle = grub2ExtractTitle(line); | ||
2527 | if (!newtitle) | ||
2528 | continue; | ||
2529 | if (!strcmp(title, newtitle)) | ||
2530 | break; | ||
2531 | } | ||
2532 | niro | 2252 | |
2533 | niro | 3002 | if (!entry) |
2534 | return NULL; | ||
2535 | niro | 2252 | |
2536 | niro | 3002 | if (index) |
2537 | *index = i; | ||
2538 | return entry; | ||
2539 | niro | 2252 | } |
2540 | |||
2541 | niro | 3002 | struct singleEntry *findEntryByIndex(struct grubConfig *cfg, int index) |
2542 | { | ||
2543 | struct singleEntry *entry; | ||
2544 | niro | 532 | |
2545 | niro | 3002 | entry = cfg->entries; |
2546 | while (index && entry) { | ||
2547 | entry = entry->next; | ||
2548 | index--; | ||
2549 | } | ||
2550 | niro | 532 | |
2551 | niro | 3002 | return entry; |
2552 | niro | 532 | } |
2553 | |||
2554 | /* Find a good template to use for the new kernel. An entry is | ||
2555 | * good if the kernel and mkinitrd exist (even if the entry | ||
2556 | * is going to be removed). Try and use the default entry, but | ||
2557 | * if that doesn't work just take the first. If we can't find one, | ||
2558 | * bail. */ | ||
2559 | niro | 3002 | struct singleEntry *findTemplate(struct grubConfig *cfg, const char *prefix, |
2560 | int *indexPtr, int skipRemoved, int flags) | ||
2561 | { | ||
2562 | struct singleEntry *entry, *entry2; | ||
2563 | int index; | ||
2564 | niro | 532 | |
2565 | niro | 3002 | if (cfg->cfi->defaultIsSaved) { |
2566 | if (cfg->cfi->getEnv) { | ||
2567 | char *defTitle = | ||
2568 | cfg->cfi->getEnv(cfg->cfi, "saved_entry"); | ||
2569 | if (defTitle) { | ||
2570 | int index = 0; | ||
2571 | if (isnumber(defTitle)) { | ||
2572 | index = atoi(defTitle); | ||
2573 | entry = findEntryByIndex(cfg, index); | ||
2574 | } else { | ||
2575 | entry = | ||
2576 | findEntryByTitle(cfg, defTitle, | ||
2577 | &index); | ||
2578 | } | ||
2579 | if (entry | ||
2580 | && suitableImage(entry, prefix, skipRemoved, | ||
2581 | flags)) { | ||
2582 | cfg->defaultImage = index; | ||
2583 | if (indexPtr) | ||
2584 | *indexPtr = index; | ||
2585 | return entry; | ||
2586 | } | ||
2587 | } | ||
2588 | niro | 2258 | } |
2589 | niro | 3018 | } else if (cfg->defaultImage >= FIRST_ENTRY_INDEX) { |
2590 | niro | 3002 | entry = findEntryByIndex(cfg, cfg->defaultImage); |
2591 | niro | 2959 | if (entry && suitableImage(entry, prefix, skipRemoved, flags)) { |
2592 | niro | 3002 | if (indexPtr) |
2593 | *indexPtr = cfg->defaultImage; | ||
2594 | return entry; | ||
2595 | niro | 2959 | } |
2596 | niro | 2252 | } |
2597 | niro | 532 | |
2598 | niro | 3002 | index = 0; |
2599 | while ((entry = findEntryByIndex(cfg, index))) { | ||
2600 | if (suitableImage(entry, prefix, skipRemoved, flags)) { | ||
2601 | niro | 3024 | int j, unmodifiedIndex; |
2602 | |||
2603 | unmodifiedIndex = index; | ||
2604 | |||
2605 | for (j = 0; j < unmodifiedIndex; j++) { | ||
2606 | niro | 3002 | entry2 = findEntryByIndex(cfg, j); |
2607 | if (entry2->skip) | ||
2608 | index--; | ||
2609 | } | ||
2610 | if (indexPtr) | ||
2611 | *indexPtr = index; | ||
2612 | niro | 532 | |
2613 | niro | 3002 | return entry; |
2614 | } | ||
2615 | |||
2616 | index++; | ||
2617 | niro | 532 | } |
2618 | |||
2619 | niro | 3002 | fprintf(stderr, |
2620 | _("grubby fatal error: unable to find a suitable template\n")); | ||
2621 | niro | 532 | |
2622 | niro | 3002 | return NULL; |
2623 | niro | 532 | } |
2624 | |||
2625 | niro | 3002 | char *findBootPrefix(void) |
2626 | { | ||
2627 | struct stat sb, sb2; | ||
2628 | niro | 532 | |
2629 | niro | 3002 | stat("/", &sb); |
2630 | niro | 532 | #ifdef __ia64__ |
2631 | niro | 3002 | stat("/boot/efi/EFI/redhat/", &sb2); |
2632 | niro | 532 | #else |
2633 | niro | 3002 | stat("/boot", &sb2); |
2634 | niro | 532 | #endif |
2635 | |||
2636 | niro | 3002 | if (sb.st_dev == sb2.st_dev) |
2637 | return strdup(""); | ||
2638 | niro | 532 | |
2639 | #ifdef __ia64__ | ||
2640 | niro | 3002 | return strdup("/boot/efi/EFI/redhat/"); |
2641 | niro | 532 | #else |
2642 | niro | 3002 | return strdup("/boot"); |
2643 | niro | 532 | #endif |
2644 | } | ||
2645 | |||
2646 | niro | 3002 | void markRemovedImage(struct grubConfig *cfg, const char *image, |
2647 | const char *prefix) | ||
2648 | { | ||
2649 | struct singleEntry *entry; | ||
2650 | niro | 532 | |
2651 | niro | 3002 | if (!image) |
2652 | return; | ||
2653 | niro | 532 | |
2654 | niro | 3002 | /* check and see if we're removing the default image */ |
2655 | if (isdigit(*image)) { | ||
2656 | entry = findEntryByPath(cfg, image, prefix, NULL); | ||
2657 | if (entry) | ||
2658 | entry->skip = 1; | ||
2659 | return; | ||
2660 | } | ||
2661 | niro | 1801 | |
2662 | niro | 3002 | while ((entry = findEntryByPath(cfg, image, prefix, NULL))) |
2663 | entry->skip = 1; | ||
2664 | niro | 532 | } |
2665 | |||
2666 | niro | 3021 | void setDefaultImage(struct grubConfig *config, int isAddingBootEntry, |
2667 | niro | 3017 | const char *defaultKernelPath, int newBootEntryIsDefault, |
2668 | niro | 3021 | const char *prefix, int flags, |
2669 | int newDefaultBootEntryIndex, int newBootEntryIndex) | ||
2670 | niro | 3002 | { |
2671 | niro | 3021 | struct singleEntry *bootEntry, *newDefault; |
2672 | int indexToVerify, firstKernelEntryIndex, currentLookupIndex; | ||
2673 | niro | 532 | |
2674 | niro | 3027 | /* initialize */ |
2675 | currentLookupIndex = FIRST_ENTRY_INDEX; | ||
2676 | |||
2677 | niro | 3021 | /* handle the two cases where the user explictly picks the default |
2678 | * boot entry index as it would exist post-modification */ | ||
2679 | |||
2680 | /* Case 1: user chose to make the latest boot entry the default */ | ||
2681 | niro | 3017 | if (newBootEntryIsDefault) { |
2682 | niro | 3021 | config->defaultImage = newBootEntryIndex; |
2683 | niro | 3002 | return; |
2684 | niro | 3021 | } |
2685 | |||
2686 | /* Case 2: user picked an arbitrary index as the default boot entry */ | ||
2687 | niro | 3031 | if (newDefaultBootEntryIndex >= FIRST_ENTRY_INDEX) { |
2688 | niro | 3021 | indexToVerify = newDefaultBootEntryIndex; |
2689 | |||
2690 | /* user chose to make latest boot entry the default */ | ||
2691 | if (newDefaultBootEntryIndex == newBootEntryIndex) { | ||
2692 | config->defaultImage = newBootEntryIndex; | ||
2693 | return; | ||
2694 | } | ||
2695 | |||
2696 | /* the user picks the default index based on the | ||
2697 | * order of the bootloader configuration after | ||
2698 | * modification; ensure we are checking for the | ||
2699 | * existence of the correct entry */ | ||
2700 | if (newBootEntryIndex < newDefaultBootEntryIndex) { | ||
2701 | if (!config->isModified) | ||
2702 | indexToVerify--; | ||
2703 | } | ||
2704 | |||
2705 | /* verify the user selected index will exist */ | ||
2706 | if (findEntryByIndex(config, indexToVerify)) { | ||
2707 | niro | 3017 | config->defaultImage = newDefaultBootEntryIndex; |
2708 | niro | 3021 | } else { |
2709 | niro | 3018 | config->defaultImage = NO_DEFAULT_ENTRY; |
2710 | niro | 3021 | } |
2711 | |||
2712 | niro | 3002 | return; |
2713 | niro | 3021 | } |
2714 | |||
2715 | /* handle cases where the index value may shift */ | ||
2716 | |||
2717 | /* check validity of existing default or first-entry-found | ||
2718 | selection */ | ||
2719 | if (defaultKernelPath) { | ||
2720 | niro | 3026 | /* we must initialize this */ |
2721 | firstKernelEntryIndex = 0; | ||
2722 | niro | 3021 | /* user requested first-entry-found */ |
2723 | if (!findEntryByPath(config, defaultKernelPath, | ||
2724 | prefix, &firstKernelEntryIndex)) { | ||
2725 | /* don't change default if can't find match */ | ||
2726 | niro | 3018 | config->defaultImage = NO_DEFAULT_ENTRY; |
2727 | niro | 3002 | return; |
2728 | } | ||
2729 | |||
2730 | niro | 3021 | config->defaultImage = firstKernelEntryIndex; |
2731 | niro | 3002 | |
2732 | niro | 3021 | /* this is where we start looking for decrement later */ |
2733 | currentLookupIndex = config->defaultImage; | ||
2734 | niro | 3002 | |
2735 | niro | 3021 | if (isAddingBootEntry && !config->isModified && |
2736 | (newBootEntryIndex < config->defaultImage)) { | ||
2737 | /* increment because new entry added before default */ | ||
2738 | niro | 3002 | config->defaultImage++; |
2739 | niro | 3021 | } |
2740 | } else { | ||
2741 | niro | 3027 | /* check to see if the default is stored in the environment */ |
2742 | if (config->defaultImage < FIRST_ENTRY_INDEX) { | ||
2743 | if (config->defaultImage == DEFAULT_SAVED || config->defaultImage == DEFAULT_SAVED_GRUB2) | ||
2744 | { | ||
2745 | if (config->cfi->defaultIsSaved) { | ||
2746 | if (config->cfi->getEnv) { | ||
2747 | char *defaultTitle = config->cfi->getEnv(config->cfi, "saved_entry"); | ||
2748 | niro | 3002 | |
2749 | niro | 3027 | if (defaultTitle) { |
2750 | if (isnumber(defaultTitle)) { | ||
2751 | currentLookupIndex = atoi(defaultTitle); | ||
2752 | } else { | ||
2753 | findEntryByTitle(config, defaultTitle, ¤tLookupIndex); | ||
2754 | } | ||
2755 | /* set the default Image to an actual index */ | ||
2756 | config->defaultImage = currentLookupIndex; | ||
2757 | } | ||
2758 | } | ||
2759 | } | ||
2760 | } | ||
2761 | } else { | ||
2762 | /* use pre-existing default entry from the file*/ | ||
2763 | currentLookupIndex = config->defaultImage; | ||
2764 | } | ||
2765 | |||
2766 | niro | 3021 | if (isAddingBootEntry |
2767 | && (newBootEntryIndex <= config->defaultImage)) { | ||
2768 | config->defaultImage++; | ||
2769 | |||
2770 | if (config->isModified) { | ||
2771 | currentLookupIndex++; | ||
2772 | } | ||
2773 | niro | 3002 | } |
2774 | niro | 3021 | } |
2775 | |||
2776 | /* sanity check - is this entry index valid? */ | ||
2777 | bootEntry = findEntryByIndex(config, currentLookupIndex); | ||
2778 | |||
2779 | if ((bootEntry && bootEntry->skip) || !bootEntry) { | ||
2780 | /* entry is to be skipped or is invalid */ | ||
2781 | if (isAddingBootEntry) { | ||
2782 | config->defaultImage = newBootEntryIndex; | ||
2783 | return; | ||
2784 | } | ||
2785 | niro | 3002 | newDefault = |
2786 | findTemplate(config, prefix, &config->defaultImage, 1, | ||
2787 | flags); | ||
2788 | niro | 3021 | if (!newDefault) { |
2789 | niro | 3018 | config->defaultImage = NO_DEFAULT_ENTRY; |
2790 | niro | 3021 | } |
2791 | |||
2792 | return; | ||
2793 | niro | 532 | } |
2794 | niro | 3021 | |
2795 | currentLookupIndex--; | ||
2796 | |||
2797 | /* decrement index by the total number of entries deleted */ | ||
2798 | |||
2799 | for (indexToVerify = currentLookupIndex; | ||
2800 | indexToVerify >= FIRST_ENTRY_INDEX; indexToVerify--) { | ||
2801 | |||
2802 | bootEntry = findEntryByIndex(config, indexToVerify); | ||
2803 | |||
2804 | if (bootEntry && bootEntry->skip) { | ||
2805 | config->defaultImage--; | ||
2806 | } | ||
2807 | } | ||
2808 | niro | 3002 | } |
2809 | niro | 532 | |
2810 | niro | 3002 | void setFallbackImage(struct grubConfig *config, int hasNew) |
2811 | { | ||
2812 | struct singleEntry *entry, *entry2; | ||
2813 | int j; | ||
2814 | niro | 532 | |
2815 | niro | 3002 | if (config->fallbackImage == -1) |
2816 | return; | ||
2817 | niro | 532 | |
2818 | niro | 3002 | entry = findEntryByIndex(config, config->fallbackImage); |
2819 | if (!entry || entry->skip) { | ||
2820 | config->fallbackImage = -1; | ||
2821 | return; | ||
2822 | } | ||
2823 | |||
2824 | niro | 532 | if (hasNew) |
2825 | niro | 3002 | config->fallbackImage++; |
2826 | |||
2827 | niro | 532 | /* count the number of entries erased before this one */ |
2828 | niro | 3002 | for (j = 0; j < config->fallbackImage; j++) { |
2829 | entry2 = findEntryByIndex(config, j); | ||
2830 | if (entry2->skip) | ||
2831 | config->fallbackImage--; | ||
2832 | niro | 532 | } |
2833 | } | ||
2834 | |||
2835 | niro | 3029 | void displayEntry(struct grubConfig *config, struct singleEntry *entry, const char *prefix, int index) |
2836 | niro | 3002 | { |
2837 | struct singleLine *line; | ||
2838 | char *root = NULL; | ||
2839 | int i; | ||
2840 | int j; | ||
2841 | niro | 532 | |
2842 | niro | 3002 | printf("index=%d\n", index); |
2843 | niro | 532 | |
2844 | niro | 3002 | line = |
2845 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | LT_KERNEL_16, | ||
2846 | entry->lines); | ||
2847 | if (!line) { | ||
2848 | printf("non linux entry\n"); | ||
2849 | return; | ||
2850 | } | ||
2851 | niro | 532 | |
2852 | niro | 3002 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) |
2853 | printf("kernel=%s\n", line->elements[1].item); | ||
2854 | else | ||
2855 | printf("kernel=%s%s\n", prefix, line->elements[1].item); | ||
2856 | niro | 532 | |
2857 | niro | 3002 | if (line->numElements >= 3) { |
2858 | printf("args=\""); | ||
2859 | i = 2; | ||
2860 | while (i < line->numElements) { | ||
2861 | if (!strncmp(line->elements[i].item, "root=", 5)) { | ||
2862 | root = line->elements[i].item + 5; | ||
2863 | } else { | ||
2864 | printf("%s%s", line->elements[i].item, | ||
2865 | line->elements[i].indent); | ||
2866 | } | ||
2867 | niro | 532 | |
2868 | niro | 3002 | i++; |
2869 | } | ||
2870 | printf("\"\n"); | ||
2871 | } else { | ||
2872 | line = getLineByType(LT_KERNELARGS, entry->lines); | ||
2873 | if (line) { | ||
2874 | char *s; | ||
2875 | niro | 532 | |
2876 | niro | 3002 | printf("args=\""); |
2877 | i = 1; | ||
2878 | while (i < line->numElements) { | ||
2879 | if (!strncmp | ||
2880 | (line->elements[i].item, "root=", 5)) { | ||
2881 | root = line->elements[i].item + 5; | ||
2882 | } else { | ||
2883 | s = line->elements[i].item; | ||
2884 | niro | 914 | |
2885 | niro | 3002 | printf("%s%s", s, |
2886 | line->elements[i].indent); | ||
2887 | } | ||
2888 | niro | 532 | |
2889 | niro | 3002 | i++; |
2890 | } | ||
2891 | niro | 532 | |
2892 | niro | 3002 | s = line->elements[i - 1].indent; |
2893 | printf("\"\n"); | ||
2894 | } | ||
2895 | niro | 532 | } |
2896 | |||
2897 | niro | 3002 | if (!root) { |
2898 | line = getLineByType(LT_ROOT, entry->lines); | ||
2899 | if (line && line->numElements >= 2) | ||
2900 | root = line->elements[1].item; | ||
2901 | } | ||
2902 | niro | 532 | |
2903 | niro | 3002 | if (root) { |
2904 | char *s = alloca(strlen(root) + 1); | ||
2905 | niro | 532 | |
2906 | niro | 3002 | strcpy(s, root); |
2907 | if (s[strlen(s) - 1] == '"') | ||
2908 | s[strlen(s) - 1] = '\0'; | ||
2909 | /* make sure the root doesn't have a trailing " */ | ||
2910 | printf("root=%s\n", s); | ||
2911 | niro | 532 | } |
2912 | |||
2913 | niro | 3002 | line = |
2914 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, | ||
2915 | entry->lines); | ||
2916 | niro | 532 | |
2917 | niro | 3002 | if (line && line->numElements >= 2) { |
2918 | if (!strncmp(prefix, line->elements[1].item, strlen(prefix))) | ||
2919 | printf("initrd="); | ||
2920 | else | ||
2921 | printf("initrd=%s", prefix); | ||
2922 | niro | 532 | |
2923 | niro | 3002 | for (i = 1; i < line->numElements; i++) |
2924 | printf("%s%s", line->elements[i].item, | ||
2925 | line->elements[i].indent); | ||
2926 | printf("\n"); | ||
2927 | } | ||
2928 | niro | 532 | |
2929 | niro | 3002 | line = getLineByType(LT_TITLE, entry->lines); |
2930 | niro | 2963 | if (line) { |
2931 | niro | 3029 | char *entryTitle; |
2932 | /* if we can extractTitle, then it's a zipl config and | ||
2933 | * if not then we go ahead with what's existed prior */ | ||
2934 | entryTitle = extractTitle(config, line); | ||
2935 | if (!entryTitle) { | ||
2936 | entryTitle=line->elements[1].item; | ||
2937 | } | ||
2938 | printf("title=%s\n", entryTitle); | ||
2939 | niro | 3002 | } else { |
2940 | char *title; | ||
2941 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
2942 | if (line) { | ||
2943 | title = grub2ExtractTitle(line); | ||
2944 | if (title) | ||
2945 | printf("title=%s\n", title); | ||
2946 | } | ||
2947 | niro | 2962 | } |
2948 | niro | 2708 | |
2949 | niro | 3002 | for (j = 0, line = entry->lines; line; line = line->next) { |
2950 | if ((line->type & LT_MBMODULE) && line->numElements >= 2) { | ||
2951 | if (!strncmp | ||
2952 | (prefix, line->elements[1].item, strlen(prefix))) | ||
2953 | printf("mbmodule%d=", j); | ||
2954 | else | ||
2955 | printf("mbmodule%d=%s", j, prefix); | ||
2956 | niro | 2708 | |
2957 | niro | 3002 | for (i = 1; i < line->numElements; i++) |
2958 | printf("%s%s", line->elements[i].item, | ||
2959 | line->elements[i].indent); | ||
2960 | printf("\n"); | ||
2961 | j++; | ||
2962 | } | ||
2963 | niro | 2708 | } |
2964 | niro | 532 | } |
2965 | |||
2966 | niro | 3002 | int isSuseSystem(void) |
2967 | { | ||
2968 | const char *path; | ||
2969 | const static char default_path[] = "/etc/SuSE-release"; | ||
2970 | niro | 1850 | |
2971 | niro | 3002 | if ((path = getenv("GRUBBY_SUSE_RELEASE")) == NULL) |
2972 | path = default_path; | ||
2973 | niro | 1850 | |
2974 | niro | 3002 | if (!access(path, R_OK)) |
2975 | return 1; | ||
2976 | return 0; | ||
2977 | niro | 1850 | } |
2978 | |||
2979 | niro | 3002 | int isSuseGrubConf(const char *path) |
2980 | { | ||
2981 | FILE *grubConf; | ||
2982 | char *line = NULL; | ||
2983 | size_t len = 0, res = 0; | ||
2984 | niro | 1850 | |
2985 | niro | 3002 | grubConf = fopen(path, "r"); |
2986 | if (!grubConf) { | ||
2987 | dbgPrintf("Could not open SuSE configuration file '%s'\n", | ||
2988 | path); | ||
2989 | return 0; | ||
2990 | } | ||
2991 | niro | 1850 | |
2992 | niro | 3002 | while ((res = getline(&line, &len, grubConf)) != -1) { |
2993 | if (!strncmp(line, "setup", 5)) { | ||
2994 | fclose(grubConf); | ||
2995 | free(line); | ||
2996 | return 1; | ||
2997 | } | ||
2998 | niro | 1850 | } |
2999 | |||
3000 | niro | 3002 | dbgPrintf("SuSE configuration file '%s' does not appear to be valid\n", |
3001 | path); | ||
3002 | niro | 1850 | |
3003 | niro | 3002 | fclose(grubConf); |
3004 | free(line); | ||
3005 | return 0; | ||
3006 | niro | 1850 | } |
3007 | |||
3008 | niro | 3002 | int suseGrubConfGetLba(const char *path, int *lbaPtr) |
3009 | { | ||
3010 | FILE *grubConf; | ||
3011 | char *line = NULL; | ||
3012 | size_t res = 0, len = 0; | ||
3013 | niro | 1850 | |
3014 | niro | 3002 | if (!path) |
3015 | return 1; | ||
3016 | if (!lbaPtr) | ||
3017 | return 1; | ||
3018 | niro | 1850 | |
3019 | niro | 3002 | grubConf = fopen(path, "r"); |
3020 | if (!grubConf) | ||
3021 | return 1; | ||
3022 | niro | 1850 | |
3023 | niro | 3002 | while ((res = getline(&line, &len, grubConf)) != -1) { |
3024 | if (line[res - 1] == '\n') | ||
3025 | line[res - 1] = '\0'; | ||
3026 | else if (len > res) | ||
3027 | line[res] = '\0'; | ||
3028 | else { | ||
3029 | line = realloc(line, res + 1); | ||
3030 | line[res] = '\0'; | ||
3031 | } | ||
3032 | niro | 1850 | |
3033 | niro | 3002 | if (!strncmp(line, "setup", 5)) { |
3034 | if (strstr(line, "--force-lba")) { | ||
3035 | *lbaPtr = 1; | ||
3036 | } else { | ||
3037 | *lbaPtr = 0; | ||
3038 | } | ||
3039 | dbgPrintf("lba: %i\n", *lbaPtr); | ||
3040 | break; | ||
3041 | } | ||
3042 | niro | 1850 | } |
3043 | |||
3044 | niro | 3002 | free(line); |
3045 | fclose(grubConf); | ||
3046 | return 0; | ||
3047 | niro | 1850 | } |
3048 | |||
3049 | niro | 3002 | int suseGrubConfGetInstallDevice(const char *path, char **devicePtr) |
3050 | { | ||
3051 | FILE *grubConf; | ||
3052 | char *line = NULL; | ||
3053 | size_t res = 0, len = 0; | ||
3054 | char *lastParamPtr = NULL; | ||
3055 | char *secLastParamPtr = NULL; | ||
3056 | char installDeviceNumber = '\0'; | ||
3057 | char *bounds = NULL; | ||
3058 | niro | 1850 | |
3059 | niro | 3002 | if (!path) |
3060 | return 1; | ||
3061 | if (!devicePtr) | ||
3062 | return 1; | ||
3063 | niro | 1850 | |
3064 | niro | 3002 | grubConf = fopen(path, "r"); |
3065 | if (!grubConf) | ||
3066 | return 1; | ||
3067 | niro | 1850 | |
3068 | niro | 3002 | while ((res = getline(&line, &len, grubConf)) != -1) { |
3069 | if (strncmp(line, "setup", 5)) | ||
3070 | continue; | ||
3071 | niro | 1850 | |
3072 | niro | 3002 | if (line[res - 1] == '\n') |
3073 | line[res - 1] = '\0'; | ||
3074 | else if (len > res) | ||
3075 | line[res] = '\0'; | ||
3076 | else { | ||
3077 | line = realloc(line, res + 1); | ||
3078 | line[res] = '\0'; | ||
3079 | } | ||
3080 | niro | 1850 | |
3081 | niro | 3002 | lastParamPtr = bounds = line + res; |
3082 | niro | 1850 | |
3083 | niro | 3002 | /* Last parameter in grub may be an optional IMAGE_DEVICE */ |
3084 | while (!isspace(*lastParamPtr)) | ||
3085 | lastParamPtr--; | ||
3086 | lastParamPtr++; | ||
3087 | niro | 1850 | |
3088 | niro | 3002 | secLastParamPtr = lastParamPtr - 2; |
3089 | dbgPrintf("lastParamPtr: %s\n", lastParamPtr); | ||
3090 | niro | 1850 | |
3091 | niro | 3002 | if (lastParamPtr + 3 > bounds) { |
3092 | dbgPrintf("lastParamPtr going over boundary"); | ||
3093 | fclose(grubConf); | ||
3094 | free(line); | ||
3095 | return 1; | ||
3096 | } | ||
3097 | if (!strncmp(lastParamPtr, "(hd", 3)) | ||
3098 | lastParamPtr += 3; | ||
3099 | dbgPrintf("lastParamPtr: %c\n", *lastParamPtr); | ||
3100 | niro | 1850 | |
3101 | niro | 3002 | /* |
3102 | * Second last parameter will decide wether last parameter is | ||
3103 | * an IMAGE_DEVICE or INSTALL_DEVICE | ||
3104 | */ | ||
3105 | while (!isspace(*secLastParamPtr)) | ||
3106 | secLastParamPtr--; | ||
3107 | secLastParamPtr++; | ||
3108 | niro | 1850 | |
3109 | niro | 3002 | if (secLastParamPtr + 3 > bounds) { |
3110 | dbgPrintf("secLastParamPtr going over boundary"); | ||
3111 | fclose(grubConf); | ||
3112 | free(line); | ||
3113 | return 1; | ||
3114 | } | ||
3115 | dbgPrintf("secLastParamPtr: %s\n", secLastParamPtr); | ||
3116 | if (!strncmp(secLastParamPtr, "(hd", 3)) { | ||
3117 | secLastParamPtr += 3; | ||
3118 | dbgPrintf("secLastParamPtr: %c\n", *secLastParamPtr); | ||
3119 | installDeviceNumber = *secLastParamPtr; | ||
3120 | } else { | ||
3121 | installDeviceNumber = *lastParamPtr; | ||
3122 | } | ||
3123 | |||
3124 | *devicePtr = malloc(6); | ||
3125 | snprintf(*devicePtr, 6, "(hd%c)", installDeviceNumber); | ||
3126 | dbgPrintf("installDeviceNumber: %c\n", installDeviceNumber); | ||
3127 | fclose(grubConf); | ||
3128 | free(line); | ||
3129 | return 0; | ||
3130 | niro | 1850 | } |
3131 | |||
3132 | niro | 3002 | free(line); |
3133 | niro | 1850 | fclose(grubConf); |
3134 | niro | 3002 | return 1; |
3135 | niro | 1850 | } |
3136 | |||
3137 | niro | 3002 | int grubGetBootFromDeviceMap(const char *device, char **bootPtr) |
3138 | { | ||
3139 | FILE *deviceMap; | ||
3140 | char *line = NULL; | ||
3141 | size_t res = 0, len = 0; | ||
3142 | char *devicePtr; | ||
3143 | char *bounds = NULL; | ||
3144 | const char *path; | ||
3145 | const static char default_path[] = "/boot/grub/device.map"; | ||
3146 | niro | 1850 | |
3147 | niro | 3002 | if (!device) |
3148 | return 1; | ||
3149 | if (!bootPtr) | ||
3150 | return 1; | ||
3151 | niro | 1850 | |
3152 | niro | 3002 | if ((path = getenv("GRUBBY_GRUB_DEVICE_MAP")) == NULL) |
3153 | path = default_path; | ||
3154 | niro | 1850 | |
3155 | niro | 3002 | dbgPrintf("opening grub device.map file from: %s\n", path); |
3156 | deviceMap = fopen(path, "r"); | ||
3157 | if (!deviceMap) | ||
3158 | return 1; | ||
3159 | niro | 1850 | |
3160 | niro | 3002 | while ((res = getline(&line, &len, deviceMap)) != -1) { |
3161 | if (!strncmp(line, "#", 1)) | ||
3162 | continue; | ||
3163 | niro | 1850 | |
3164 | niro | 3002 | if (line[res - 1] == '\n') |
3165 | line[res - 1] = '\0'; | ||
3166 | else if (len > res) | ||
3167 | line[res] = '\0'; | ||
3168 | else { | ||
3169 | line = realloc(line, res + 1); | ||
3170 | line[res] = '\0'; | ||
3171 | } | ||
3172 | niro | 1850 | |
3173 | niro | 3002 | devicePtr = line; |
3174 | bounds = line + res; | ||
3175 | niro | 1850 | |
3176 | niro | 3002 | while ((isspace(*line) && ((devicePtr + 1) <= bounds))) |
3177 | devicePtr++; | ||
3178 | dbgPrintf("device: %s\n", devicePtr); | ||
3179 | niro | 1850 | |
3180 | niro | 3002 | if (!strncmp(devicePtr, device, strlen(device))) { |
3181 | devicePtr += strlen(device); | ||
3182 | while (isspace(*devicePtr) | ||
3183 | && ((devicePtr + 1) <= bounds)) | ||
3184 | devicePtr++; | ||
3185 | niro | 1850 | |
3186 | niro | 3002 | *bootPtr = strdup(devicePtr); |
3187 | break; | ||
3188 | } | ||
3189 | niro | 1850 | } |
3190 | |||
3191 | niro | 3002 | free(line); |
3192 | fclose(deviceMap); | ||
3193 | return 0; | ||
3194 | niro | 1850 | } |
3195 | |||
3196 | niro | 3002 | int suseGrubConfGetBoot(const char *path, char **bootPtr) |
3197 | { | ||
3198 | char *grubDevice; | ||
3199 | niro | 1850 | |
3200 | niro | 3002 | if (suseGrubConfGetInstallDevice(path, &grubDevice)) |
3201 | dbgPrintf("error looking for grub installation device\n"); | ||
3202 | else | ||
3203 | dbgPrintf("grubby installation device: %s\n", grubDevice); | ||
3204 | niro | 1850 | |
3205 | niro | 3002 | if (grubGetBootFromDeviceMap(grubDevice, bootPtr)) |
3206 | dbgPrintf("error looking for grub boot device\n"); | ||
3207 | else | ||
3208 | dbgPrintf("grubby boot device: %s\n", *bootPtr); | ||
3209 | niro | 1850 | |
3210 | niro | 3002 | free(grubDevice); |
3211 | return 0; | ||
3212 | niro | 1850 | } |
3213 | |||
3214 | niro | 3002 | int parseSuseGrubConf(int *lbaPtr, char **bootPtr) |
3215 | { | ||
3216 | /* | ||
3217 | * This SuSE grub configuration file at this location is not your | ||
3218 | * average grub configuration file, but instead the grub commands | ||
3219 | * used to setup grub on that system. | ||
3220 | */ | ||
3221 | const char *path; | ||
3222 | const static char default_path[] = "/etc/grub.conf"; | ||
3223 | niro | 1850 | |
3224 | niro | 3002 | if ((path = getenv("GRUBBY_SUSE_GRUB_CONF")) == NULL) |
3225 | path = default_path; | ||
3226 | niro | 1850 | |
3227 | niro | 3002 | if (!isSuseGrubConf(path)) |
3228 | return 1; | ||
3229 | niro | 1850 | |
3230 | niro | 3002 | if (lbaPtr) { |
3231 | *lbaPtr = 0; | ||
3232 | if (suseGrubConfGetLba(path, lbaPtr)) | ||
3233 | return 1; | ||
3234 | } | ||
3235 | niro | 1850 | |
3236 | niro | 3002 | if (bootPtr) { |
3237 | *bootPtr = NULL; | ||
3238 | suseGrubConfGetBoot(path, bootPtr); | ||
3239 | } | ||
3240 | niro | 1850 | |
3241 | niro | 3002 | return 0; |
3242 | niro | 1850 | } |
3243 | |||
3244 | niro | 3002 | int parseSysconfigGrub(int *lbaPtr, char **bootPtr) |
3245 | { | ||
3246 | FILE *in; | ||
3247 | char buf[1024]; | ||
3248 | char *chptr; | ||
3249 | char *start; | ||
3250 | char *param; | ||
3251 | niro | 532 | |
3252 | niro | 3002 | in = fopen("/etc/sysconfig/grub", "r"); |
3253 | if (!in) | ||
3254 | return 1; | ||
3255 | niro | 532 | |
3256 | niro | 3002 | if (lbaPtr) |
3257 | *lbaPtr = 0; | ||
3258 | if (bootPtr) | ||
3259 | *bootPtr = NULL; | ||
3260 | niro | 532 | |
3261 | niro | 3002 | while (fgets(buf, sizeof(buf), in)) { |
3262 | start = buf; | ||
3263 | while (isspace(*start)) | ||
3264 | start++; | ||
3265 | if (*start == '#') | ||
3266 | continue; | ||
3267 | niro | 532 | |
3268 | niro | 3002 | chptr = strchr(start, '='); |
3269 | if (!chptr) | ||
3270 | continue; | ||
3271 | chptr--; | ||
3272 | while (*chptr && isspace(*chptr)) | ||
3273 | chptr--; | ||
3274 | chptr++; | ||
3275 | *chptr = '\0'; | ||
3276 | niro | 532 | |
3277 | niro | 3002 | param = chptr + 1; |
3278 | while (*param && isspace(*param)) | ||
3279 | param++; | ||
3280 | if (*param == '=') { | ||
3281 | param++; | ||
3282 | while (*param && isspace(*param)) | ||
3283 | param++; | ||
3284 | } | ||
3285 | niro | 532 | |
3286 | niro | 3002 | chptr = param; |
3287 | while (*chptr && !isspace(*chptr)) | ||
3288 | chptr++; | ||
3289 | *chptr = '\0'; | ||
3290 | niro | 532 | |
3291 | niro | 3002 | if (!strcmp(start, "forcelba") && !strcmp(param, "1") && lbaPtr) |
3292 | *lbaPtr = 1; | ||
3293 | else if (!strcmp(start, "boot") && bootPtr) | ||
3294 | *bootPtr = strdup(param); | ||
3295 | } | ||
3296 | niro | 532 | |
3297 | niro | 3002 | fclose(in); |
3298 | niro | 532 | |
3299 | niro | 3002 | return 0; |
3300 | niro | 532 | } |
3301 | |||
3302 | niro | 3002 | void dumpSysconfigGrub(void) |
3303 | { | ||
3304 | char *boot = NULL; | ||
3305 | int lba; | ||
3306 | niro | 532 | |
3307 | niro | 3002 | if (isSuseSystem()) { |
3308 | if (parseSuseGrubConf(&lba, &boot)) { | ||
3309 | free(boot); | ||
3310 | return; | ||
3311 | } | ||
3312 | } else { | ||
3313 | if (parseSysconfigGrub(&lba, &boot)) { | ||
3314 | free(boot); | ||
3315 | return; | ||
3316 | } | ||
3317 | niro | 1850 | } |
3318 | niro | 3002 | |
3319 | if (lba) | ||
3320 | printf("lba\n"); | ||
3321 | if (boot) { | ||
3322 | printf("boot=%s\n", boot); | ||
3323 | free(boot); | ||
3324 | niro | 1850 | } |
3325 | niro | 532 | } |
3326 | |||
3327 | niro | 3002 | int displayInfo(struct grubConfig *config, char *kernel, const char *prefix) |
3328 | { | ||
3329 | int i = 0; | ||
3330 | struct singleEntry *entry; | ||
3331 | struct singleLine *line; | ||
3332 | niro | 532 | |
3333 | niro | 3002 | entry = findEntryByPath(config, kernel, prefix, &i); |
3334 | if (!entry) { | ||
3335 | fprintf(stderr, _("grubby: kernel not found\n")); | ||
3336 | return 1; | ||
3337 | niro | 532 | } |
3338 | |||
3339 | niro | 3002 | /* this is a horrible hack to support /etc/sysconfig/grub; there must |
3340 | be a better way */ | ||
3341 | if (config->cfi == &grubConfigType) { | ||
3342 | dumpSysconfigGrub(); | ||
3343 | } else { | ||
3344 | line = getLineByType(LT_BOOT, config->theLines); | ||
3345 | if (line && line->numElements >= 1) { | ||
3346 | printf("boot=%s\n", line->elements[1].item); | ||
3347 | } | ||
3348 | niro | 532 | |
3349 | niro | 3002 | line = getLineByType(LT_LBA, config->theLines); |
3350 | if (line) | ||
3351 | printf("lba\n"); | ||
3352 | } | ||
3353 | niro | 532 | |
3354 | niro | 3029 | displayEntry(config, entry, prefix, i); |
3355 | niro | 3002 | |
3356 | niro | 532 | i++; |
3357 | niro | 3002 | while ((entry = findEntryByPath(config, kernel, prefix, &i))) { |
3358 | niro | 3029 | displayEntry(config, entry, prefix, i); |
3359 | niro | 3002 | i++; |
3360 | } | ||
3361 | niro | 532 | |
3362 | niro | 3002 | return 0; |
3363 | niro | 532 | } |
3364 | |||
3365 | niro | 3002 | struct singleLine *addLineTmpl(struct singleEntry *entry, |
3366 | struct singleLine *tmplLine, | ||
3367 | struct singleLine *prevLine, | ||
3368 | const char *val, struct configFileInfo *cfi) | ||
3369 | niro | 914 | { |
3370 | niro | 3002 | struct singleLine *newLine = lineDup(tmplLine); |
3371 | niro | 914 | |
3372 | niro | 3002 | if (isEfi && cfi == &grub2ConfigType) { |
3373 | enum lineType_e old = newLine->type; | ||
3374 | newLine->type = preferredLineType(newLine->type, cfi); | ||
3375 | if (old != newLine->type) | ||
3376 | newLine->elements[0].item = | ||
3377 | getKeyByType(newLine->type, cfi); | ||
3378 | } | ||
3379 | niro | 1940 | |
3380 | niro | 3002 | if (val) { |
3381 | /* override the inherited value with our own. | ||
3382 | * This is a little weak because it only applies to elements[1] | ||
3383 | */ | ||
3384 | if (newLine->numElements > 1) | ||
3385 | removeElement(newLine, 1); | ||
3386 | insertElement(newLine, val, 1, cfi); | ||
3387 | niro | 914 | |
3388 | niro | 3002 | /* but try to keep the rootspec from the template... sigh */ |
3389 | if (tmplLine-> | ||
3390 | type & (LT_HYPER | LT_KERNEL | LT_MBMODULE | LT_INITRD | | ||
3391 | LT_KERNEL_EFI | LT_INITRD_EFI | LT_KERNEL_16 | | ||
3392 | LT_INITRD_16)) { | ||
3393 | niro | 3139 | const char *prfx = tmplLine->elements[1].item; |
3394 | size_t rs = getRootSpecifier(prfx); | ||
3395 | if (isinitrd(tmplLine->type)) { | ||
3396 | for (struct singleLine *l = entry->lines; | ||
3397 | rs == 0 && l; l = l->next) { | ||
3398 | if (iskernel(l->type)) { | ||
3399 | prfx = l->elements[1].item; | ||
3400 | rs = getRootSpecifier(prfx); | ||
3401 | break; | ||
3402 | } | ||
3403 | } | ||
3404 | } | ||
3405 | niro | 3138 | if (rs > 0) { |
3406 | niro | 3002 | free(newLine->elements[1].item); |
3407 | niro | 3138 | newLine->elements[1].item = sdupprintf( |
3408 | niro | 3139 | "%.*s%s", (int) rs, prfx, val); |
3409 | niro | 3002 | } |
3410 | } | ||
3411 | niro | 914 | } |
3412 | |||
3413 | niro | 3002 | dbgPrintf("addLineTmpl(%s)\n", newLine->numElements ? |
3414 | newLine->elements[0].item : ""); | ||
3415 | niro | 914 | |
3416 | niro | 3002 | if (!entry->lines) { |
3417 | /* first one on the list */ | ||
3418 | entry->lines = newLine; | ||
3419 | } else if (prevLine) { | ||
3420 | /* add after prevLine */ | ||
3421 | newLine->next = prevLine->next; | ||
3422 | prevLine->next = newLine; | ||
3423 | } | ||
3424 | niro | 914 | |
3425 | niro | 3002 | return newLine; |
3426 | niro | 914 | } |
3427 | |||
3428 | niro | 532 | /* val may be NULL */ |
3429 | niro | 3002 | struct singleLine *addLine(struct singleEntry *entry, |
3430 | struct configFileInfo *cfi, | ||
3431 | enum lineType_e type, char *defaultIndent, | ||
3432 | const char *val) | ||
3433 | { | ||
3434 | struct singleLine *line, *prev; | ||
3435 | struct keywordTypes *kw; | ||
3436 | struct singleLine tmpl; | ||
3437 | niro | 532 | |
3438 | niro | 3002 | /* NB: This function shouldn't allocate items on the heap, rather on |
3439 | * the stack since it calls addLineTmpl which will make copies. | ||
3440 | */ | ||
3441 | if (type == LT_TITLE && cfi->titleBracketed) { | ||
3442 | /* we're doing a bracketed title (zipl) */ | ||
3443 | tmpl.type = type; | ||
3444 | tmpl.numElements = 1; | ||
3445 | tmpl.elements = alloca(sizeof(*tmpl.elements)); | ||
3446 | tmpl.elements[0].item = alloca(strlen(val) + 3); | ||
3447 | sprintf(tmpl.elements[0].item, "[%s]", val); | ||
3448 | tmpl.elements[0].indent = ""; | ||
3449 | val = NULL; | ||
3450 | } else if (type == LT_MENUENTRY) { | ||
3451 | char *lineend = "--class gnu-linux --class gnu --class os {"; | ||
3452 | if (!val) { | ||
3453 | fprintf(stderr, | ||
3454 | "Line type LT_MENUENTRY requires a value\n"); | ||
3455 | abort(); | ||
3456 | } | ||
3457 | kw = getKeywordByType(type, cfi); | ||
3458 | if (!kw) { | ||
3459 | fprintf(stderr, | ||
3460 | "Looking up keyword for unknown type %d\n", | ||
3461 | type); | ||
3462 | abort(); | ||
3463 | } | ||
3464 | tmpl.indent = ""; | ||
3465 | tmpl.type = type; | ||
3466 | tmpl.numElements = 3; | ||
3467 | tmpl.elements = | ||
3468 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
3469 | tmpl.elements[0].item = kw->key; | ||
3470 | tmpl.elements[0].indent = alloca(2); | ||
3471 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
3472 | tmpl.elements[1].item = (char *)val; | ||
3473 | tmpl.elements[1].indent = alloca(2); | ||
3474 | sprintf(tmpl.elements[1].indent, "%c", kw->nextChar); | ||
3475 | tmpl.elements[2].item = alloca(strlen(lineend) + 1); | ||
3476 | strcpy(tmpl.elements[2].item, lineend); | ||
3477 | tmpl.elements[2].indent = ""; | ||
3478 | } else { | ||
3479 | kw = getKeywordByType(type, cfi); | ||
3480 | if (!kw) { | ||
3481 | fprintf(stderr, | ||
3482 | "Looking up keyword for unknown type %d\n", | ||
3483 | type); | ||
3484 | abort(); | ||
3485 | } | ||
3486 | tmpl.type = type; | ||
3487 | tmpl.numElements = val ? 2 : 1; | ||
3488 | tmpl.elements = | ||
3489 | alloca(sizeof(*tmpl.elements) * tmpl.numElements); | ||
3490 | tmpl.elements[0].item = kw->key; | ||
3491 | tmpl.elements[0].indent = alloca(2); | ||
3492 | sprintf(tmpl.elements[0].indent, "%c", kw->nextChar); | ||
3493 | if (val) { | ||
3494 | tmpl.elements[1].item = (char *)val; | ||
3495 | tmpl.elements[1].indent = ""; | ||
3496 | } | ||
3497 | niro | 1696 | } |
3498 | niro | 3002 | |
3499 | /* The last non-empty line gives us the indention to us and the line | ||
3500 | * to insert after. Note that comments are considered empty lines, | ||
3501 | * which may not be ideal? If there are no lines or we are looking at | ||
3502 | * the first line, we use defaultIndent (the first line is normally | ||
3503 | * indented differently from the rest) */ | ||
3504 | for (line = entry->lines, prev = NULL; line; line = line->next) { | ||
3505 | if (line->numElements) | ||
3506 | prev = line; | ||
3507 | /* fall back on the last line if prev isn't otherwise set */ | ||
3508 | if (!line->next && !prev) | ||
3509 | prev = line; | ||
3510 | niro | 1696 | } |
3511 | niro | 3002 | |
3512 | struct singleLine *menuEntry; | ||
3513 | menuEntry = getLineByType(LT_MENUENTRY, entry->lines); | ||
3514 | if (tmpl.type == LT_ENTRY_END) { | ||
3515 | if (menuEntry) | ||
3516 | tmpl.indent = menuEntry->indent; | ||
3517 | else | ||
3518 | tmpl.indent = defaultIndent ? : ""; | ||
3519 | } else if (tmpl.type != LT_MENUENTRY) { | ||
3520 | if (menuEntry) | ||
3521 | tmpl.indent = "\t"; | ||
3522 | else if (prev == entry->lines) | ||
3523 | tmpl.indent = defaultIndent ? : ""; | ||
3524 | else | ||
3525 | tmpl.indent = prev->indent; | ||
3526 | niro | 1696 | } |
3527 | niro | 914 | |
3528 | niro | 3002 | return addLineTmpl(entry, &tmpl, prev, val, cfi); |
3529 | niro | 532 | } |
3530 | |||
3531 | niro | 3002 | void removeLine(struct singleEntry *entry, struct singleLine *line) |
3532 | { | ||
3533 | struct singleLine *prev; | ||
3534 | int i; | ||
3535 | niro | 532 | |
3536 | niro | 3002 | for (i = 0; i < line->numElements; i++) { |
3537 | free(line->elements[i].item); | ||
3538 | free(line->elements[i].indent); | ||
3539 | } | ||
3540 | free(line->elements); | ||
3541 | free(line->indent); | ||
3542 | niro | 532 | |
3543 | niro | 3002 | if (line == entry->lines) { |
3544 | entry->lines = line->next; | ||
3545 | } else { | ||
3546 | prev = entry->lines; | ||
3547 | while (prev->next != line) | ||
3548 | prev = prev->next; | ||
3549 | prev->next = line->next; | ||
3550 | } | ||
3551 | niro | 532 | |
3552 | niro | 3002 | free(line); |
3553 | niro | 532 | } |
3554 | |||
3555 | niro | 3002 | static void requote(struct singleLine *tmplLine, struct configFileInfo *cfi) |
3556 | niro | 1696 | { |
3557 | niro | 3002 | struct singleLine newLine = { |
3558 | .indent = tmplLine->indent, | ||
3559 | .type = tmplLine->type, | ||
3560 | .next = tmplLine->next, | ||
3561 | }; | ||
3562 | int firstQuotedItem = -1; | ||
3563 | int quoteLen = 0; | ||
3564 | int j; | ||
3565 | int element = 0; | ||
3566 | char *c; | ||
3567 | niro | 1696 | |
3568 | niro | 3002 | c = malloc(strlen(tmplLine->elements[0].item) + 1); |
3569 | strcpy(c, tmplLine->elements[0].item); | ||
3570 | insertElement(&newLine, c, element++, cfi); | ||
3571 | free(c); | ||
3572 | c = NULL; | ||
3573 | niro | 1696 | |
3574 | niro | 3002 | for (j = 1; j < tmplLine->numElements; j++) { |
3575 | if (firstQuotedItem == -1) { | ||
3576 | quoteLen += strlen(tmplLine->elements[j].item); | ||
3577 | |||
3578 | if (isquote(tmplLine->elements[j].item[0])) { | ||
3579 | firstQuotedItem = j; | ||
3580 | quoteLen += | ||
3581 | strlen(tmplLine->elements[j].indent); | ||
3582 | } else { | ||
3583 | c = malloc(quoteLen + 1); | ||
3584 | strcpy(c, tmplLine->elements[j].item); | ||
3585 | insertElement(&newLine, c, element++, cfi); | ||
3586 | free(c); | ||
3587 | quoteLen = 0; | ||
3588 | } | ||
3589 | } else { | ||
3590 | int itemlen = strlen(tmplLine->elements[j].item); | ||
3591 | quoteLen += itemlen; | ||
3592 | quoteLen += strlen(tmplLine->elements[j].indent); | ||
3593 | |||
3594 | if (isquote(tmplLine->elements[j].item[itemlen - 1])) { | ||
3595 | c = malloc(quoteLen + 1); | ||
3596 | c[0] = '\0'; | ||
3597 | for (int i = firstQuotedItem; i < j + 1; i++) { | ||
3598 | strcat(c, tmplLine->elements[i].item); | ||
3599 | strcat(c, tmplLine->elements[i].indent); | ||
3600 | } | ||
3601 | insertElement(&newLine, c, element++, cfi); | ||
3602 | free(c); | ||
3603 | |||
3604 | firstQuotedItem = -1; | ||
3605 | quoteLen = 0; | ||
3606 | } | ||
3607 | niro | 1696 | } |
3608 | } | ||
3609 | niro | 3002 | while (tmplLine->numElements) |
3610 | removeElement(tmplLine, 0); | ||
3611 | if (tmplLine->elements) | ||
3612 | free(tmplLine->elements); | ||
3613 | niro | 1696 | |
3614 | niro | 3002 | tmplLine->numElements = newLine.numElements; |
3615 | tmplLine->elements = newLine.elements; | ||
3616 | niro | 1696 | } |
3617 | |||
3618 | niro | 3002 | static void insertElement(struct singleLine *line, |
3619 | const char *item, int insertHere, | ||
3620 | struct configFileInfo *cfi) | ||
3621 | niro | 914 | { |
3622 | niro | 3002 | struct keywordTypes *kw; |
3623 | char indent[2] = ""; | ||
3624 | niro | 914 | |
3625 | niro | 3002 | /* sanity check */ |
3626 | if (insertHere > line->numElements) { | ||
3627 | dbgPrintf | ||
3628 | ("insertElement() adjusting insertHere from %d to %d\n", | ||
3629 | insertHere, line->numElements); | ||
3630 | insertHere = line->numElements; | ||
3631 | } | ||
3632 | niro | 914 | |
3633 | niro | 3002 | line->elements = realloc(line->elements, (line->numElements + 1) * |
3634 | sizeof(*line->elements)); | ||
3635 | memmove(&line->elements[insertHere + 1], | ||
3636 | &line->elements[insertHere], | ||
3637 | (line->numElements - insertHere) * sizeof(*line->elements)); | ||
3638 | line->elements[insertHere].item = strdup(item); | ||
3639 | niro | 914 | |
3640 | niro | 3002 | kw = getKeywordByType(line->type, cfi); |
3641 | niro | 914 | |
3642 | niro | 3002 | if (line->numElements == 0) { |
3643 | indent[0] = '\0'; | ||
3644 | } else if (insertHere == 0) { | ||
3645 | indent[0] = kw->nextChar; | ||
3646 | } else if (kw->separatorChar != '\0') { | ||
3647 | indent[0] = kw->separatorChar; | ||
3648 | } else { | ||
3649 | indent[0] = ' '; | ||
3650 | } | ||
3651 | niro | 914 | |
3652 | niro | 3002 | if (insertHere > 0 && line->elements[insertHere - 1].indent[0] == '\0') { |
3653 | /* move the end-of-line forward */ | ||
3654 | line->elements[insertHere].indent = | ||
3655 | line->elements[insertHere - 1].indent; | ||
3656 | line->elements[insertHere - 1].indent = strdup(indent); | ||
3657 | } else { | ||
3658 | line->elements[insertHere].indent = strdup(indent); | ||
3659 | } | ||
3660 | niro | 914 | |
3661 | niro | 3002 | line->numElements++; |
3662 | niro | 914 | |
3663 | niro | 3002 | dbgPrintf("insertElement(%s, '%s%s', %d)\n", |
3664 | line->elements[0].item, | ||
3665 | line->elements[insertHere].item, | ||
3666 | line->elements[insertHere].indent, insertHere); | ||
3667 | niro | 914 | } |
3668 | |||
3669 | niro | 3002 | static void removeElement(struct singleLine *line, int removeHere) |
3670 | { | ||
3671 | int i; | ||
3672 | niro | 914 | |
3673 | niro | 3002 | /* sanity check */ |
3674 | if (removeHere >= line->numElements) | ||
3675 | return; | ||
3676 | niro | 914 | |
3677 | niro | 3002 | dbgPrintf("removeElement(%s, %d:%s)\n", line->elements[0].item, |
3678 | removeHere, line->elements[removeHere].item); | ||
3679 | niro | 914 | |
3680 | niro | 3002 | free(line->elements[removeHere].item); |
3681 | niro | 914 | |
3682 | niro | 3002 | if (removeHere > 1) { |
3683 | /* previous argument gets this argument's post-indentation */ | ||
3684 | free(line->elements[removeHere - 1].indent); | ||
3685 | line->elements[removeHere - 1].indent = | ||
3686 | line->elements[removeHere].indent; | ||
3687 | } else { | ||
3688 | free(line->elements[removeHere].indent); | ||
3689 | } | ||
3690 | niro | 914 | |
3691 | niro | 3002 | /* now collapse the array, but don't bother to realloc smaller */ |
3692 | for (i = removeHere; i < line->numElements - 1; i++) | ||
3693 | line->elements[i] = line->elements[i + 1]; | ||
3694 | niro | 914 | |
3695 | niro | 3002 | line->numElements--; |
3696 | niro | 914 | } |
3697 | |||
3698 | niro | 3136 | static int argNameMatch(const char *one, const char *two) |
3699 | niro | 3002 | { |
3700 | char *first, *second; | ||
3701 | niro | 3136 | char *chptra, *chptrb; |
3702 | int rc; | ||
3703 | niro | 532 | |
3704 | niro | 3002 | first = strcpy(alloca(strlen(one) + 1), one); |
3705 | second = strcpy(alloca(strlen(two) + 1), two); | ||
3706 | niro | 532 | |
3707 | niro | 3136 | chptra = strchr(first, '='); |
3708 | if (chptra) | ||
3709 | *chptra = '\0'; | ||
3710 | niro | 532 | |
3711 | niro | 3136 | chptrb = strchr(second, '='); |
3712 | if (chptrb) | ||
3713 | *chptrb = '\0'; | ||
3714 | |||
3715 | rc = strcmp(first, second); | ||
3716 | |||
3717 | if (chptra) | ||
3718 | *chptra = '='; | ||
3719 | if (chptrb) | ||
3720 | *chptrb = '='; | ||
3721 | |||
3722 | return rc; | ||
3723 | } | ||
3724 | |||
3725 | static int argHasValue(const char *arg) | ||
3726 | { | ||
3727 | char *chptr; | ||
3728 | |||
3729 | chptr = strchr(arg, '='); | ||
3730 | niro | 3002 | if (chptr) |
3731 | niro | 3136 | return 1; |
3732 | return 0; | ||
3733 | } | ||
3734 | niro | 532 | |
3735 | niro | 3136 | static int argValueMatch(const char *one, const char *two) |
3736 | { | ||
3737 | char *first, *second; | ||
3738 | char *chptra, *chptrb; | ||
3739 | |||
3740 | first = strcpy(alloca(strlen(one) + 1), one); | ||
3741 | second = strcpy(alloca(strlen(two) + 1), two); | ||
3742 | |||
3743 | chptra = strchr(first, '='); | ||
3744 | if (chptra) | ||
3745 | chptra += 1; | ||
3746 | |||
3747 | chptrb = strchr(second, '='); | ||
3748 | if (chptrb) | ||
3749 | chptrb += 1; | ||
3750 | |||
3751 | if (!chptra && !chptrb) | ||
3752 | return 0; | ||
3753 | else if (!chptra) | ||
3754 | return *chptrb - 0; | ||
3755 | else if (!chptrb) | ||
3756 | return 0 - *chptra; | ||
3757 | else | ||
3758 | return strcmp(chptra, chptrb); | ||
3759 | niro | 532 | } |
3760 | |||
3761 | niro | 3002 | int updateActualImage(struct grubConfig *cfg, const char *image, |
3762 | const char *prefix, const char *addArgs, | ||
3763 | const char *removeArgs, int multibootArgs) | ||
3764 | { | ||
3765 | struct singleEntry *entry; | ||
3766 | struct singleLine *line, *rootLine; | ||
3767 | int index = 0; | ||
3768 | int i, k; | ||
3769 | const char **newArgs, **oldArgs; | ||
3770 | const char **arg; | ||
3771 | int useKernelArgs, useRoot; | ||
3772 | int firstElement; | ||
3773 | int *usedElements; | ||
3774 | int doreplace; | ||
3775 | niro | 532 | |
3776 | niro | 3002 | if (!image) |
3777 | return 0; | ||
3778 | niro | 532 | |
3779 | niro | 3002 | if (!addArgs) { |
3780 | newArgs = malloc(sizeof(*newArgs)); | ||
3781 | *newArgs = NULL; | ||
3782 | } else { | ||
3783 | if (poptParseArgvString(addArgs, NULL, &newArgs)) { | ||
3784 | fprintf(stderr, | ||
3785 | _("grubby: error separating arguments '%s'\n"), | ||
3786 | addArgs); | ||
3787 | return 1; | ||
3788 | } | ||
3789 | niro | 532 | } |
3790 | |||
3791 | niro | 3002 | if (!removeArgs) { |
3792 | oldArgs = malloc(sizeof(*oldArgs)); | ||
3793 | *oldArgs = NULL; | ||
3794 | } else { | ||
3795 | if (poptParseArgvString(removeArgs, NULL, &oldArgs)) { | ||
3796 | fprintf(stderr, | ||
3797 | _("grubby: error separating arguments '%s'\n"), | ||
3798 | removeArgs); | ||
3799 | free(newArgs); | ||
3800 | return 1; | ||
3801 | } | ||
3802 | niro | 532 | } |
3803 | |||
3804 | niro | 3002 | useKernelArgs = (getKeywordByType(LT_KERNELARGS, cfg->cfi) |
3805 | && (!multibootArgs || cfg->cfi->mbConcatArgs)); | ||
3806 | niro | 532 | |
3807 | niro | 3002 | useRoot = (getKeywordByType(LT_ROOT, cfg->cfi) |
3808 | && !multibootArgs); | ||
3809 | niro | 532 | |
3810 | niro | 3002 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
3811 | niro | 532 | |
3812 | niro | 3002 | if (multibootArgs && !entry->multiboot) |
3813 | continue; | ||
3814 | niro | 532 | |
3815 | niro | 3002 | /* Determine where to put the args. If this config supports |
3816 | * LT_KERNELARGS, use that. Otherwise use | ||
3817 | * LT_HYPER/LT_KERNEL/LT_MBMODULE lines. | ||
3818 | */ | ||
3819 | if (useKernelArgs) { | ||
3820 | line = getLineByType(LT_KERNELARGS, entry->lines); | ||
3821 | if (!line) { | ||
3822 | /* no LT_KERNELARGS, need to add it */ | ||
3823 | line = addLine(entry, cfg->cfi, LT_KERNELARGS, | ||
3824 | cfg->secondaryIndent, NULL); | ||
3825 | } | ||
3826 | firstElement = 1; | ||
3827 | niro | 532 | |
3828 | niro | 3002 | } else if (multibootArgs) { |
3829 | line = getLineByType(LT_HYPER, entry->lines); | ||
3830 | if (!line) { | ||
3831 | /* a multiboot entry without LT_HYPER? */ | ||
3832 | continue; | ||
3833 | } | ||
3834 | firstElement = 2; | ||
3835 | niro | 532 | |
3836 | niro | 3002 | } else { |
3837 | line = | ||
3838 | getLineByType(LT_KERNEL | LT_MBMODULE | | ||
3839 | LT_KERNEL_EFI | LT_KERNEL_16, | ||
3840 | entry->lines); | ||
3841 | if (!line) { | ||
3842 | /* no LT_KERNEL or LT_MBMODULE in this entry? */ | ||
3843 | continue; | ||
3844 | } | ||
3845 | firstElement = 2; | ||
3846 | } | ||
3847 | niro | 914 | |
3848 | niro | 3002 | /* handle the elilo case which does: |
3849 | * append="hypervisor args -- kernel args" | ||
3850 | niro | 914 | */ |
3851 | niro | 3002 | if (entry->multiboot && cfg->cfi->mbConcatArgs) { |
3852 | /* this is a multiboot entry, make sure there's | ||
3853 | * -- on the args line | ||
3854 | */ | ||
3855 | for (i = firstElement; i < line->numElements; i++) { | ||
3856 | if (!strcmp(line->elements[i].item, "--")) | ||
3857 | break; | ||
3858 | } | ||
3859 | if (i == line->numElements) { | ||
3860 | /* assume all existing args are kernel args, | ||
3861 | * prepend -- to make it official | ||
3862 | */ | ||
3863 | insertElement(line, "--", firstElement, | ||
3864 | cfg->cfi); | ||
3865 | i = firstElement; | ||
3866 | } | ||
3867 | if (!multibootArgs) { | ||
3868 | /* kernel args start after the -- */ | ||
3869 | firstElement = i + 1; | ||
3870 | } | ||
3871 | } else if (cfg->cfi->mbConcatArgs) { | ||
3872 | /* this is a non-multiboot entry, remove hyper args */ | ||
3873 | for (i = firstElement; i < line->numElements; i++) { | ||
3874 | if (!strcmp(line->elements[i].item, "--")) | ||
3875 | break; | ||
3876 | } | ||
3877 | if (i < line->numElements) { | ||
3878 | /* remove args up to -- */ | ||
3879 | while (strcmp | ||
3880 | (line->elements[firstElement].item, | ||
3881 | "--")) | ||
3882 | removeElement(line, firstElement); | ||
3883 | /* remove -- */ | ||
3884 | removeElement(line, firstElement); | ||
3885 | } | ||
3886 | } | ||
3887 | niro | 532 | |
3888 | niro | 3002 | usedElements = calloc(line->numElements, sizeof(*usedElements)); |
3889 | niro | 532 | |
3890 | niro | 3002 | for (k = 0, arg = newArgs; *arg; arg++, k++) { |
3891 | niro | 914 | |
3892 | niro | 3002 | doreplace = 1; |
3893 | for (i = firstElement; i < line->numElements; i++) { | ||
3894 | if (multibootArgs && cfg->cfi->mbConcatArgs && | ||
3895 | !strcmp(line->elements[i].item, "--")) { | ||
3896 | /* reached the end of hyper args, insert here */ | ||
3897 | doreplace = 0; | ||
3898 | break; | ||
3899 | } | ||
3900 | if (usedElements[i]) | ||
3901 | continue; | ||
3902 | niro | 3136 | if (!argNameMatch(line->elements[i].item, *arg)) { |
3903 | niro | 3002 | usedElements[i] = 1; |
3904 | break; | ||
3905 | } | ||
3906 | } | ||
3907 | niro | 532 | |
3908 | niro | 3002 | if (i < line->numElements && doreplace) { |
3909 | /* direct replacement */ | ||
3910 | free(line->elements[i].item); | ||
3911 | line->elements[i].item = strdup(*arg); | ||
3912 | niro | 532 | |
3913 | niro | 3002 | } else if (useRoot && !strncmp(*arg, "root=/dev/", 10)) { |
3914 | /* root= replacement */ | ||
3915 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
3916 | if (rootLine) { | ||
3917 | free(rootLine->elements[1].item); | ||
3918 | rootLine->elements[1].item = | ||
3919 | strdup(*arg + 5); | ||
3920 | } else { | ||
3921 | rootLine = | ||
3922 | addLine(entry, cfg->cfi, LT_ROOT, | ||
3923 | cfg->secondaryIndent, | ||
3924 | *arg + 5); | ||
3925 | } | ||
3926 | } | ||
3927 | niro | 532 | |
3928 | niro | 3002 | else { |
3929 | /* insert/append */ | ||
3930 | insertElement(line, *arg, i, cfg->cfi); | ||
3931 | usedElements = | ||
3932 | realloc(usedElements, | ||
3933 | line->numElements * | ||
3934 | sizeof(*usedElements)); | ||
3935 | memmove(&usedElements[i + 1], &usedElements[i], | ||
3936 | line->numElements - i - 1); | ||
3937 | usedElements[i] = 1; | ||
3938 | niro | 532 | |
3939 | niro | 3002 | /* if we updated a root= here even though |
3940 | * there is a LT_ROOT available we need to | ||
3941 | * remove the LT_ROOT entry (this will happen | ||
3942 | * if we switch from a device to a label) */ | ||
3943 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
3944 | rootLine = | ||
3945 | getLineByType(LT_ROOT, | ||
3946 | entry->lines); | ||
3947 | if (rootLine) | ||
3948 | removeLine(entry, rootLine); | ||
3949 | } | ||
3950 | } | ||
3951 | niro | 532 | } |
3952 | |||
3953 | niro | 3002 | free(usedElements); |
3954 | niro | 532 | |
3955 | niro | 3002 | for (arg = oldArgs; *arg; arg++) { |
3956 | for (i = firstElement; i < line->numElements; i++) { | ||
3957 | if (multibootArgs && cfg->cfi->mbConcatArgs && | ||
3958 | !strcmp(line->elements[i].item, "--")) | ||
3959 | /* reached the end of hyper args, stop here */ | ||
3960 | break; | ||
3961 | niro | 3136 | if (!argNameMatch(line->elements[i].item, *arg)) { |
3962 | if (!argHasValue(*arg) || | ||
3963 | !argValueMatch(line->elements[i].item, *arg)) { | ||
3964 | removeElement(line, i); | ||
3965 | break; | ||
3966 | } | ||
3967 | niro | 3002 | } |
3968 | } | ||
3969 | /* handle removing LT_ROOT line too */ | ||
3970 | if (useRoot && !strncmp(*arg, "root=", 5)) { | ||
3971 | rootLine = getLineByType(LT_ROOT, entry->lines); | ||
3972 | if (rootLine) | ||
3973 | removeLine(entry, rootLine); | ||
3974 | } | ||
3975 | niro | 532 | } |
3976 | |||
3977 | niro | 3002 | if (line->numElements == 1) { |
3978 | /* don't need the line at all (note it has to be a | ||
3979 | LT_KERNELARGS for this to happen */ | ||
3980 | removeLine(entry, line); | ||
3981 | } | ||
3982 | niro | 532 | } |
3983 | |||
3984 | niro | 3002 | free(newArgs); |
3985 | free(oldArgs); | ||
3986 | niro | 532 | |
3987 | niro | 3002 | return 0; |
3988 | niro | 532 | } |
3989 | |||
3990 | niro | 3002 | int updateImage(struct grubConfig *cfg, const char *image, |
3991 | const char *prefix, const char *addArgs, | ||
3992 | const char *removeArgs, | ||
3993 | const char *addMBArgs, const char *removeMBArgs) | ||
3994 | { | ||
3995 | int rc = 0; | ||
3996 | niro | 532 | |
3997 | niro | 3002 | if (!image) |
3998 | return rc; | ||
3999 | niro | 532 | |
4000 | niro | 3002 | /* update the main args first... */ |
4001 | if (addArgs || removeArgs) | ||
4002 | rc = updateActualImage(cfg, image, prefix, addArgs, removeArgs, | ||
4003 | 0); | ||
4004 | if (rc) | ||
4005 | return rc; | ||
4006 | niro | 532 | |
4007 | niro | 3002 | /* and now any multiboot args */ |
4008 | if (addMBArgs || removeMBArgs) | ||
4009 | rc = updateActualImage(cfg, image, prefix, addMBArgs, | ||
4010 | removeMBArgs, 1); | ||
4011 | return rc; | ||
4012 | niro | 532 | } |
4013 | |||
4014 | niro | 3002 | int addMBInitrd(struct grubConfig *cfg, const char *newMBKernel, |
4015 | const char *image, const char *prefix, const char *initrd, | ||
4016 | const char *title) | ||
4017 | { | ||
4018 | struct singleEntry *entry; | ||
4019 | struct singleLine *line, *kernelLine, *endLine = NULL; | ||
4020 | int index = 0; | ||
4021 | niro | 2263 | |
4022 | niro | 3002 | if (!image) |
4023 | return 0; | ||
4024 | niro | 2263 | |
4025 | niro | 3002 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
4026 | kernelLine = getLineByType(LT_MBMODULE, entry->lines); | ||
4027 | if (!kernelLine) | ||
4028 | continue; | ||
4029 | niro | 2263 | |
4030 | niro | 3002 | /* if title is supplied, the entry's title must match it. */ |
4031 | if (title) { | ||
4032 | char *linetitle; | ||
4033 | niro | 2962 | |
4034 | niro | 3002 | line = |
4035 | getLineByType(LT_TITLE | LT_MENUENTRY, | ||
4036 | entry->lines); | ||
4037 | if (!line) | ||
4038 | continue; | ||
4039 | niro | 2960 | |
4040 | niro | 3002 | linetitle = extractTitle(cfg, line); |
4041 | if (!linetitle) | ||
4042 | continue; | ||
4043 | if (strcmp(title, linetitle)) { | ||
4044 | free(linetitle); | ||
4045 | continue; | ||
4046 | } | ||
4047 | free(linetitle); | ||
4048 | } | ||
4049 | niro | 2960 | |
4050 | niro | 3002 | if (prefix) { |
4051 | int prefixLen = strlen(prefix); | ||
4052 | if (!strncmp(initrd, prefix, prefixLen)) | ||
4053 | initrd += prefixLen; | ||
4054 | } | ||
4055 | endLine = getLineByType(LT_ENTRY_END, entry->lines); | ||
4056 | if (endLine) | ||
4057 | removeLine(entry, endLine); | ||
4058 | line = | ||
4059 | addLine(entry, cfg->cfi, | ||
4060 | preferredLineType(LT_MBMODULE, cfg->cfi), | ||
4061 | kernelLine->indent, initrd); | ||
4062 | if (!line) | ||
4063 | return 1; | ||
4064 | if (endLine) { | ||
4065 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); | ||
4066 | if (!line) | ||
4067 | return 1; | ||
4068 | } | ||
4069 | |||
4070 | break; | ||
4071 | niro | 2263 | } |
4072 | |||
4073 | niro | 3002 | return 0; |
4074 | niro | 2263 | } |
4075 | |||
4076 | niro | 3002 | int updateInitrd(struct grubConfig *cfg, const char *image, |
4077 | const char *prefix, const char *initrd, const char *title) | ||
4078 | { | ||
4079 | struct singleEntry *entry; | ||
4080 | struct singleLine *line, *kernelLine, *endLine = NULL; | ||
4081 | int index = 0; | ||
4082 | niro | 1156 | |
4083 | niro | 3002 | if (!image) |
4084 | return 0; | ||
4085 | niro | 1156 | |
4086 | niro | 3002 | for (; (entry = findEntryByPath(cfg, image, prefix, &index)); index++) { |
4087 | kernelLine = | ||
4088 | getLineByType(LT_KERNEL | LT_KERNEL_EFI | LT_KERNEL_16, | ||
4089 | entry->lines); | ||
4090 | if (!kernelLine) | ||
4091 | continue; | ||
4092 | niro | 1156 | |
4093 | niro | 3002 | /* if title is supplied, the entry's title must match it. */ |
4094 | if (title) { | ||
4095 | char *linetitle; | ||
4096 | niro | 2962 | |
4097 | niro | 3002 | line = |
4098 | getLineByType(LT_TITLE | LT_MENUENTRY, | ||
4099 | entry->lines); | ||
4100 | if (!line) | ||
4101 | continue; | ||
4102 | niro | 2960 | |
4103 | niro | 3002 | linetitle = extractTitle(cfg, line); |
4104 | if (!linetitle) | ||
4105 | continue; | ||
4106 | if (strcmp(title, linetitle)) { | ||
4107 | free(linetitle); | ||
4108 | continue; | ||
4109 | } | ||
4110 | free(linetitle); | ||
4111 | } | ||
4112 | niro | 2960 | |
4113 | niro | 3002 | line = |
4114 | getLineByType(LT_INITRD | LT_INITRD_EFI | LT_INITRD_16, | ||
4115 | entry->lines); | ||
4116 | if (line) | ||
4117 | removeLine(entry, line); | ||
4118 | if (prefix) { | ||
4119 | int prefixLen = strlen(prefix); | ||
4120 | if (!strncmp(initrd, prefix, prefixLen)) | ||
4121 | initrd += prefixLen; | ||
4122 | } | ||
4123 | endLine = getLineByType(LT_ENTRY_END, entry->lines); | ||
4124 | if (endLine) | ||
4125 | removeLine(entry, endLine); | ||
4126 | enum lineType_e lt; | ||
4127 | switch (kernelLine->type) { | ||
4128 | case LT_KERNEL: | ||
4129 | lt = LT_INITRD; | ||
4130 | break; | ||
4131 | case LT_KERNEL_EFI: | ||
4132 | lt = LT_INITRD_EFI; | ||
4133 | break; | ||
4134 | case LT_KERNEL_16: | ||
4135 | lt = LT_INITRD_16; | ||
4136 | break; | ||
4137 | default: | ||
4138 | lt = preferredLineType(LT_INITRD, cfg->cfi); | ||
4139 | } | ||
4140 | line = addLine(entry, cfg->cfi, lt, kernelLine->indent, initrd); | ||
4141 | if (!line) | ||
4142 | return 1; | ||
4143 | if (endLine) { | ||
4144 | line = addLine(entry, cfg->cfi, LT_ENTRY_END, "", NULL); | ||
4145 | if (!line) | ||
4146 | return 1; | ||
4147 | } | ||
4148 | |||
4149 | niro | 2683 | break; |
4150 | } | ||
4151 | niro | 1696 | |
4152 | niro | 3002 | return 0; |
4153 | niro | 1156 | } |
4154 | |||
4155 | niro | 3002 | int checkDeviceBootloader(const char *device, const unsigned char *boot) |
4156 | { | ||
4157 | int fd; | ||
4158 | unsigned char bootSect[512]; | ||
4159 | int offset; | ||
4160 | niro | 532 | |
4161 | niro | 3002 | fd = open(device, O_RDONLY); |
4162 | if (fd < 0) { | ||
4163 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
4164 | device, strerror(errno)); | ||
4165 | return 1; | ||
4166 | } | ||
4167 | niro | 532 | |
4168 | niro | 3002 | if (read(fd, bootSect, 512) != 512) { |
4169 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
4170 | device, strerror(errno)); | ||
4171 | return 1; | ||
4172 | } | ||
4173 | close(fd); | ||
4174 | niro | 532 | |
4175 | niro | 3002 | /* first three bytes should match, a jmp short should be in there */ |
4176 | if (memcmp(boot, bootSect, 3)) | ||
4177 | return 0; | ||
4178 | niro | 532 | |
4179 | niro | 3002 | if (boot[1] == JMP_SHORT_OPCODE) { |
4180 | offset = boot[2] + 2; | ||
4181 | } else if (boot[1] == 0xe8 || boot[1] == 0xe9) { | ||
4182 | offset = (boot[3] << 8) + boot[2] + 2; | ||
4183 | } else if (boot[0] == JMP_SHORT_OPCODE) { | ||
4184 | offset = boot[1] + 2; | ||
4185 | /* | ||
4186 | * it looks like grub, when copying stage1 into the mbr, | ||
4187 | * patches stage1 right after the JMP location, replacing | ||
4188 | * other instructions such as JMPs for NOOPs. So, relax the | ||
4189 | * check a little bit by skipping those different bytes. | ||
4190 | */ | ||
4191 | if ((bootSect[offset + 1] == NOOP_OPCODE) | ||
4192 | && (bootSect[offset + 2] == NOOP_OPCODE)) { | ||
4193 | offset = offset + 3; | ||
4194 | } | ||
4195 | } else if (boot[0] == 0xe8 || boot[0] == 0xe9) { | ||
4196 | offset = (boot[2] << 8) + boot[1] + 2; | ||
4197 | } else { | ||
4198 | return 0; | ||
4199 | } | ||
4200 | niro | 532 | |
4201 | niro | 3002 | if (memcmp(boot + offset, bootSect + offset, CODE_SEG_SIZE)) |
4202 | return 0; | ||
4203 | niro | 532 | |
4204 | niro | 3002 | return 2; |
4205 | niro | 532 | } |
4206 | |||
4207 | niro | 3002 | int checkLiloOnRaid(char *mdDev, const unsigned char *boot) |
4208 | { | ||
4209 | int fd; | ||
4210 | char buf[65536]; | ||
4211 | char *end; | ||
4212 | char *chptr; | ||
4213 | char *chptr2; | ||
4214 | int rc; | ||
4215 | niro | 532 | |
4216 | niro | 3002 | /* it's on raid; we need to parse /proc/mdstat and check all of the |
4217 | *raw* devices listed in there */ | ||
4218 | niro | 532 | |
4219 | niro | 3002 | if (!strncmp(mdDev, "/dev/", 5)) |
4220 | mdDev += 5; | ||
4221 | niro | 532 | |
4222 | niro | 3002 | if ((fd = open("/proc/mdstat", O_RDONLY)) < 0) { |
4223 | fprintf(stderr, _("grubby: failed to open /proc/mdstat: %s\n"), | ||
4224 | strerror(errno)); | ||
4225 | return 2; | ||
4226 | } | ||
4227 | niro | 532 | |
4228 | niro | 3002 | rc = read(fd, buf, sizeof(buf) - 1); |
4229 | if (rc < 0 || rc == (sizeof(buf) - 1)) { | ||
4230 | fprintf(stderr, _("grubby: failed to read /proc/mdstat: %s\n"), | ||
4231 | strerror(errno)); | ||
4232 | close(fd); | ||
4233 | return 2; | ||
4234 | } | ||
4235 | niro | 532 | close(fd); |
4236 | niro | 3002 | buf[rc] = '\0'; |
4237 | niro | 532 | |
4238 | niro | 3002 | chptr = buf; |
4239 | while (*chptr) { | ||
4240 | end = strchr(chptr, '\n'); | ||
4241 | if (!end) | ||
4242 | break; | ||
4243 | *end = '\0'; | ||
4244 | niro | 532 | |
4245 | niro | 3002 | if (!strncmp(chptr, mdDev, strlen(mdDev)) && |
4246 | chptr[strlen(mdDev)] == ' ') { | ||
4247 | niro | 532 | |
4248 | niro | 3002 | /* found the device */ |
4249 | while (*chptr && *chptr != ':') | ||
4250 | chptr++; | ||
4251 | chptr++; | ||
4252 | while (*chptr && isspace(*chptr)) | ||
4253 | chptr++; | ||
4254 | niro | 532 | |
4255 | niro | 3002 | /* skip the "active" bit */ |
4256 | while (*chptr && !isspace(*chptr)) | ||
4257 | chptr++; | ||
4258 | while (*chptr && isspace(*chptr)) | ||
4259 | chptr++; | ||
4260 | niro | 532 | |
4261 | niro | 3002 | /* skip the raid level */ |
4262 | while (*chptr && !isspace(*chptr)) | ||
4263 | chptr++; | ||
4264 | while (*chptr && isspace(*chptr)) | ||
4265 | chptr++; | ||
4266 | niro | 532 | |
4267 | niro | 3002 | /* everything else is partition stuff */ |
4268 | while (*chptr) { | ||
4269 | chptr2 = chptr; | ||
4270 | while (*chptr2 && *chptr2 != '[') | ||
4271 | chptr2++; | ||
4272 | if (!*chptr2) | ||
4273 | break; | ||
4274 | niro | 532 | |
4275 | niro | 3002 | /* yank off the numbers at the end */ |
4276 | chptr2--; | ||
4277 | while (isdigit(*chptr2) && chptr2 > chptr) | ||
4278 | chptr2--; | ||
4279 | chptr2++; | ||
4280 | *chptr2 = '\0'; | ||
4281 | niro | 532 | |
4282 | niro | 3002 | /* Better, now we need the /dev/ back. We're |
4283 | * done with everything before this point, so | ||
4284 | * we can just put the /dev/ part there. | ||
4285 | * There will always be room. */ | ||
4286 | memcpy(chptr - 5, "/dev/", 5); | ||
4287 | rc = checkDeviceBootloader(chptr - 5, boot); | ||
4288 | if (rc != 2) { | ||
4289 | return rc; | ||
4290 | } | ||
4291 | |||
4292 | chptr = chptr2 + 1; | ||
4293 | /* skip the [11] bit */ | ||
4294 | while (*chptr && !isspace(*chptr)) | ||
4295 | chptr++; | ||
4296 | /* and move to the next one */ | ||
4297 | while (*chptr && isspace(*chptr)) | ||
4298 | chptr++; | ||
4299 | } | ||
4300 | |||
4301 | /* we're good to go */ | ||
4302 | return 2; | ||
4303 | niro | 532 | } |
4304 | |||
4305 | niro | 3002 | chptr = end + 1; |
4306 | niro | 532 | } |
4307 | |||
4308 | niro | 3002 | fprintf(stderr, |
4309 | _("grubby: raid device /dev/%s not found in /proc/mdstat\n"), | ||
4310 | mdDev); | ||
4311 | return 0; | ||
4312 | niro | 532 | } |
4313 | |||
4314 | niro | 3002 | int checkForLilo(struct grubConfig *config) |
4315 | { | ||
4316 | int fd; | ||
4317 | unsigned char boot[512]; | ||
4318 | struct singleLine *line; | ||
4319 | niro | 532 | |
4320 | niro | 3002 | for (line = config->theLines; line; line = line->next) |
4321 | if (line->type == LT_BOOT) | ||
4322 | break; | ||
4323 | niro | 532 | |
4324 | niro | 3002 | if (!line) { |
4325 | fprintf(stderr, | ||
4326 | _ | ||
4327 | ("grubby: no boot line found in lilo configuration\n")); | ||
4328 | return 1; | ||
4329 | } | ||
4330 | niro | 532 | |
4331 | niro | 3002 | if (line->numElements != 2) |
4332 | return 1; | ||
4333 | niro | 532 | |
4334 | niro | 3002 | fd = open("/boot/boot.b", O_RDONLY); |
4335 | if (fd < 0) { | ||
4336 | fprintf(stderr, _("grubby: unable to open %s: %s\n"), | ||
4337 | "/boot/boot.b", strerror(errno)); | ||
4338 | return 1; | ||
4339 | } | ||
4340 | niro | 532 | |
4341 | niro | 3002 | if (read(fd, boot, 512) != 512) { |
4342 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
4343 | "/boot/boot.b", strerror(errno)); | ||
4344 | return 1; | ||
4345 | } | ||
4346 | close(fd); | ||
4347 | niro | 532 | |
4348 | niro | 3002 | if (!strncmp("/dev/md", line->elements[1].item, 7)) |
4349 | return checkLiloOnRaid(line->elements[1].item, boot); | ||
4350 | niro | 532 | |
4351 | niro | 3002 | return checkDeviceBootloader(line->elements[1].item, boot); |
4352 | niro | 532 | } |
4353 | |||
4354 | niro | 3002 | int checkForGrub2(struct grubConfig *config) |
4355 | { | ||
4356 | if (!access("/etc/grub.d/", R_OK)) | ||
4357 | return 2; | ||
4358 | niro | 1696 | |
4359 | niro | 3002 | return 1; |
4360 | niro | 1696 | } |
4361 | |||
4362 | niro | 3002 | int checkForGrub(struct grubConfig *config) |
4363 | { | ||
4364 | int fd; | ||
4365 | unsigned char bootSect[512]; | ||
4366 | char *boot; | ||
4367 | int onSuse = isSuseSystem(); | ||
4368 | niro | 532 | |
4369 | niro | 3002 | if (onSuse) { |
4370 | if (parseSuseGrubConf(NULL, &boot)) | ||
4371 | return 0; | ||
4372 | } else { | ||
4373 | if (parseSysconfigGrub(NULL, &boot)) | ||
4374 | return 0; | ||
4375 | } | ||
4376 | niro | 1851 | |
4377 | niro | 3002 | /* assume grub is not installed -- not an error condition */ |
4378 | if (!boot) | ||
4379 | return 0; | ||
4380 | niro | 532 | |
4381 | niro | 3002 | fd = open("/boot/grub/stage1", O_RDONLY); |
4382 | if (fd < 0) | ||
4383 | /* this doesn't exist if grub hasn't been installed */ | ||
4384 | return 0; | ||
4385 | niro | 532 | |
4386 | niro | 3002 | if (read(fd, bootSect, 512) != 512) { |
4387 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
4388 | "/boot/grub/stage1", strerror(errno)); | ||
4389 | close(fd); | ||
4390 | return 1; | ||
4391 | } | ||
4392 | close(fd); | ||
4393 | niro | 532 | |
4394 | niro | 3002 | /* The more elaborate checks do not work on SuSE. The checks done |
4395 | * seem to be reasonble (at least for now), so just return success | ||
4396 | */ | ||
4397 | if (onSuse) | ||
4398 | return 2; | ||
4399 | niro | 532 | |
4400 | niro | 3002 | return checkDeviceBootloader(boot, bootSect); |
4401 | niro | 532 | } |
4402 | |||
4403 | niro | 3002 | int checkForExtLinux(struct grubConfig *config) |
4404 | { | ||
4405 | int fd; | ||
4406 | unsigned char bootSect[512]; | ||
4407 | char *boot; | ||
4408 | char executable[] = "/boot/extlinux/extlinux"; | ||
4409 | niro | 914 | |
4410 | niro | 3002 | printf("entered: checkForExtLinux()\n"); |
4411 | niro | 914 | |
4412 | niro | 3002 | if (parseSysconfigGrub(NULL, &boot)) |
4413 | return 0; | ||
4414 | niro | 914 | |
4415 | niro | 3002 | /* assume grub is not installed -- not an error condition */ |
4416 | if (!boot) | ||
4417 | return 0; | ||
4418 | niro | 914 | |
4419 | niro | 3002 | fd = open(executable, O_RDONLY); |
4420 | if (fd < 0) | ||
4421 | /* this doesn't exist if grub hasn't been installed */ | ||
4422 | return 0; | ||
4423 | niro | 914 | |
4424 | niro | 3002 | if (read(fd, bootSect, 512) != 512) { |
4425 | fprintf(stderr, _("grubby: unable to read %s: %s\n"), | ||
4426 | executable, strerror(errno)); | ||
4427 | return 1; | ||
4428 | } | ||
4429 | close(fd); | ||
4430 | niro | 914 | |
4431 | niro | 3002 | return checkDeviceBootloader(boot, bootSect); |
4432 | niro | 914 | } |
4433 | |||
4434 | niro | 3002 | int checkForYaboot(struct grubConfig *config) |
4435 | { | ||
4436 | /* | ||
4437 | * This is a simplistic check that we consider good enough for own puporses | ||
4438 | * | ||
4439 | * If we were to properly check if yaboot is *installed* we'd need to: | ||
4440 | * 1) get the system boot device (LT_BOOT) | ||
4441 | * 2) considering it's a raw filesystem, check if the yaboot binary matches | ||
4442 | * the content on the boot device | ||
4443 | * 3) if not, copy the binary to a temporary file and run "addnote" on it | ||
4444 | * 4) check again if binary and boot device contents match | ||
4445 | */ | ||
4446 | if (!access("/etc/yaboot.conf", R_OK)) | ||
4447 | return 2; | ||
4448 | niro | 1853 | |
4449 | niro | 3002 | return 1; |
4450 | niro | 1853 | } |
4451 | |||
4452 | niro | 3002 | int checkForElilo(struct grubConfig *config) |
4453 | { | ||
4454 | if (!access("/etc/elilo.conf", R_OK)) | ||
4455 | return 2; | ||
4456 | niro | 1854 | |
4457 | niro | 3002 | return 1; |
4458 | niro | 1854 | } |
4459 | |||
4460 | niro | 3138 | static size_t getRootSpecifier(const char *str) |
4461 | niro | 3002 | { |
4462 | niro | 3138 | size_t rs = 0; |
4463 | niro | 532 | |
4464 | niro | 3002 | if (*str == '(') { |
4465 | niro | 3138 | for (; str[rs] != ')' && !isspace(str[rs]); rs++) { |
4466 | if (!str[rs]) | ||
4467 | return rs; | ||
4468 | } | ||
4469 | rs++; | ||
4470 | niro | 3002 | } |
4471 | niro | 3138 | |
4472 | niro | 3139 | return rs + subvolPrefix(str + rs); |
4473 | niro | 532 | } |
4474 | |||
4475 | niro | 3002 | static char *getInitrdVal(struct grubConfig *config, |
4476 | const char *prefix, struct singleLine *tmplLine, | ||
4477 | const char *newKernelInitrd, | ||
4478 | const char **extraInitrds, int extraInitrdCount) | ||
4479 | niro | 914 | { |
4480 | niro | 3002 | char *initrdVal, *end; |
4481 | int i; | ||
4482 | size_t totalSize; | ||
4483 | size_t prefixLen; | ||
4484 | char separatorChar; | ||
4485 | niro | 914 | |
4486 | niro | 3002 | prefixLen = strlen(prefix); |
4487 | totalSize = strlen(newKernelInitrd) - prefixLen + 1 /* \0 */ ; | ||
4488 | niro | 914 | |
4489 | niro | 3002 | for (i = 0; i < extraInitrdCount; i++) { |
4490 | totalSize += sizeof(separatorChar); | ||
4491 | totalSize += strlen(extraInitrds[i]) - prefixLen; | ||
4492 | } | ||
4493 | niro | 914 | |
4494 | niro | 3002 | initrdVal = end = malloc(totalSize); |
4495 | niro | 914 | |
4496 | niro | 3002 | end = stpcpy(end, newKernelInitrd + prefixLen); |
4497 | niro | 914 | |
4498 | niro | 3002 | separatorChar = getKeywordByType(LT_INITRD, config->cfi)->separatorChar; |
4499 | for (i = 0; i < extraInitrdCount; i++) { | ||
4500 | const char *extraInitrd; | ||
4501 | int j; | ||
4502 | niro | 914 | |
4503 | niro | 3002 | extraInitrd = extraInitrds[i] + prefixLen; |
4504 | /* Don't add entries that are already there */ | ||
4505 | if (tmplLine != NULL) { | ||
4506 | for (j = 2; j < tmplLine->numElements; j++) | ||
4507 | if (strcmp | ||
4508 | (extraInitrd, | ||
4509 | tmplLine->elements[j].item) == 0) | ||
4510 | break; | ||
4511 | niro | 914 | |
4512 | niro | 3002 | if (j != tmplLine->numElements) |
4513 | continue; | ||
4514 | } | ||
4515 | |||
4516 | *end++ = separatorChar; | ||
4517 | end = stpcpy(end, extraInitrd); | ||
4518 | niro | 914 | } |
4519 | |||
4520 | niro | 3002 | return initrdVal; |
4521 | niro | 914 | } |
4522 | |||
4523 | niro | 3002 | int addNewKernel(struct grubConfig *config, struct singleEntry *template, |
4524 | const char *prefix, | ||
4525 | const char *newKernelPath, const char *newKernelTitle, | ||
4526 | const char *newKernelArgs, const char *newKernelInitrd, | ||
4527 | const char **extraInitrds, int extraInitrdCount, | ||
4528 | const char *newMBKernel, const char *newMBKernelArgs, | ||
4529 | niro | 3007 | const char *newDevTreePath, int newIndex) |
4530 | niro | 3002 | { |
4531 | niro | 3007 | struct singleEntry *new, *entry, *prev = NULL; |
4532 | niro | 3002 | struct singleLine *newLine = NULL, *tmplLine = NULL, *masterLine = NULL; |
4533 | int needs; | ||
4534 | niro | 3010 | char *indexs; |
4535 | niro | 3002 | char *chptr; |
4536 | niro | 3010 | int rc; |
4537 | niro | 532 | |
4538 | niro | 3002 | if (!newKernelPath) |
4539 | return 0; | ||
4540 | niro | 532 | |
4541 | niro | 3010 | rc = asprintf(&indexs, "%d", newIndex); |
4542 | if (rc < 0) | ||
4543 | return 1; | ||
4544 | |||
4545 | niro | 3002 | /* if the newKernelTitle is too long silently munge it into something |
4546 | * we can live with. truncating is first check, then we'll just mess with | ||
4547 | * it until it looks better */ | ||
4548 | if (config->cfi->maxTitleLength && | ||
4549 | niro | 532 | (strlen(newKernelTitle) > config->cfi->maxTitleLength)) { |
4550 | niro | 3002 | char *buf = alloca(config->cfi->maxTitleLength + 7); |
4551 | char *numBuf = alloca(config->cfi->maxTitleLength + 1); | ||
4552 | int i = 1; | ||
4553 | niro | 532 | |
4554 | niro | 3002 | sprintf(buf, "TITLE=%.*s", config->cfi->maxTitleLength, |
4555 | newKernelTitle); | ||
4556 | while (findEntryByPath(config, buf, NULL, NULL)) { | ||
4557 | sprintf(numBuf, "%d", i++); | ||
4558 | strcpy(buf + strlen(buf) - strlen(numBuf), numBuf); | ||
4559 | } | ||
4560 | |||
4561 | newKernelTitle = buf + 6; | ||
4562 | niro | 532 | } |
4563 | |||
4564 | niro | 3002 | new = malloc(sizeof(*new)); |
4565 | new->skip = 0; | ||
4566 | new->multiboot = 0; | ||
4567 | new->lines = NULL; | ||
4568 | niro | 3007 | entry = config->entries; |
4569 | for (unsigned int i = 0; i < newIndex; i++) { | ||
4570 | if (!entry) | ||
4571 | break; | ||
4572 | prev = entry; | ||
4573 | entry = entry->next; | ||
4574 | } | ||
4575 | new->next = entry; | ||
4576 | niro | 532 | |
4577 | niro | 3007 | if (prev) |
4578 | prev->next = new; | ||
4579 | else | ||
4580 | config->entries = new; | ||
4581 | |||
4582 | niro | 3002 | /* copy/update from the template */ |
4583 | needs = NEED_KERNEL | NEED_TITLE; | ||
4584 | if (newKernelInitrd) | ||
4585 | needs |= NEED_INITRD; | ||
4586 | if (newMBKernel) { | ||
4587 | needs |= NEED_MB; | ||
4588 | new->multiboot = 1; | ||
4589 | } | ||
4590 | if (newDevTreePath && getKeywordByType(LT_DEVTREE, config->cfi)) | ||
4591 | needs |= NEED_DEVTREE; | ||
4592 | niro | 532 | |
4593 | niro | 3002 | if (template) { |
4594 | for (masterLine = template->lines; | ||
4595 | masterLine && (tmplLine = lineDup(masterLine)); | ||
4596 | lineFree(tmplLine), masterLine = masterLine->next) { | ||
4597 | dbgPrintf("addNewKernel processing %d\n", | ||
4598 | tmplLine->type); | ||
4599 | niro | 532 | |
4600 | niro | 3002 | /* skip comments */ |
4601 | chptr = tmplLine->indent; | ||
4602 | while (*chptr && isspace(*chptr)) | ||
4603 | chptr++; | ||
4604 | if (*chptr == '#') | ||
4605 | continue; | ||
4606 | niro | 532 | |
4607 | niro | 3002 | if (iskernel(tmplLine->type) |
4608 | && tmplLine->numElements >= 2) { | ||
4609 | if (!template->multiboot && (needs & NEED_MB)) { | ||
4610 | /* it's not a multiboot template and | ||
4611 | * this is the kernel line. Try to | ||
4612 | * be intelligent about inserting the | ||
4613 | * hypervisor at the same time. | ||
4614 | */ | ||
4615 | if (config->cfi->mbHyperFirst) { | ||
4616 | /* insert the hypervisor first */ | ||
4617 | newLine = | ||
4618 | addLine(new, config->cfi, | ||
4619 | LT_HYPER, | ||
4620 | tmplLine->indent, | ||
4621 | newMBKernel + | ||
4622 | strlen(prefix)); | ||
4623 | /* set up for adding the | ||
4624 | * kernel line */ | ||
4625 | free(tmplLine->indent); | ||
4626 | tmplLine->indent = | ||
4627 | strdup(config-> | ||
4628 | secondaryIndent); | ||
4629 | needs &= ~NEED_MB; | ||
4630 | } | ||
4631 | if (needs & NEED_KERNEL) { | ||
4632 | /* use addLineTmpl to | ||
4633 | * preserve line elements, | ||
4634 | * otherwise we could just | ||
4635 | * call addLine. | ||
4636 | * Unfortunately this means | ||
4637 | * making some changes to the | ||
4638 | * template such as the | ||
4639 | * indent change above and | ||
4640 | * the type change below. | ||
4641 | */ | ||
4642 | struct keywordTypes *mbm_kw = | ||
4643 | getKeywordByType | ||
4644 | (LT_MBMODULE, config->cfi); | ||
4645 | if (mbm_kw) { | ||
4646 | tmplLine->type = | ||
4647 | LT_MBMODULE; | ||
4648 | free(tmplLine-> | ||
4649 | elements[0].item); | ||
4650 | tmplLine->elements[0]. | ||
4651 | item = | ||
4652 | strdup(mbm_kw->key); | ||
4653 | } | ||
4654 | newLine = | ||
4655 | addLineTmpl(new, tmplLine, | ||
4656 | newLine, | ||
4657 | newKernelPath + | ||
4658 | strlen(prefix), | ||
4659 | config->cfi); | ||
4660 | needs &= ~NEED_KERNEL; | ||
4661 | } | ||
4662 | if (needs & NEED_MB) { /* !mbHyperFirst */ | ||
4663 | newLine = | ||
4664 | addLine(new, config->cfi, | ||
4665 | LT_HYPER, | ||
4666 | config-> | ||
4667 | secondaryIndent, | ||
4668 | newMBKernel + | ||
4669 | strlen(prefix)); | ||
4670 | needs &= ~NEED_MB; | ||
4671 | } | ||
4672 | } else if (needs & NEED_KERNEL) { | ||
4673 | newLine = | ||
4674 | addLineTmpl(new, tmplLine, newLine, | ||
4675 | newKernelPath + | ||
4676 | strlen(prefix), | ||
4677 | config->cfi); | ||
4678 | needs &= ~NEED_KERNEL; | ||
4679 | } | ||
4680 | niro | 532 | |
4681 | niro | 3002 | } else if (tmplLine->type == LT_HYPER && |
4682 | tmplLine->numElements >= 2) { | ||
4683 | if (needs & NEED_MB) { | ||
4684 | newLine = | ||
4685 | addLineTmpl(new, tmplLine, newLine, | ||
4686 | newMBKernel + | ||
4687 | strlen(prefix), | ||
4688 | config->cfi); | ||
4689 | needs &= ~NEED_MB; | ||
4690 | } | ||
4691 | niro | 532 | |
4692 | niro | 3002 | } else if (tmplLine->type == LT_MBMODULE && |
4693 | tmplLine->numElements >= 2) { | ||
4694 | if (new->multiboot) { | ||
4695 | if (needs & NEED_KERNEL) { | ||
4696 | newLine = | ||
4697 | addLineTmpl(new, tmplLine, | ||
4698 | newLine, | ||
4699 | newKernelPath + | ||
4700 | strlen(prefix), | ||
4701 | config->cfi); | ||
4702 | needs &= ~NEED_KERNEL; | ||
4703 | } else if (config->cfi->mbInitRdIsModule | ||
4704 | && (needs & NEED_INITRD)) { | ||
4705 | char *initrdVal; | ||
4706 | initrdVal = | ||
4707 | getInitrdVal(config, prefix, | ||
4708 | tmplLine, | ||
4709 | newKernelInitrd, | ||
4710 | extraInitrds, | ||
4711 | extraInitrdCount); | ||
4712 | newLine = | ||
4713 | addLineTmpl(new, tmplLine, | ||
4714 | newLine, | ||
4715 | initrdVal, | ||
4716 | config->cfi); | ||
4717 | free(initrdVal); | ||
4718 | needs &= ~NEED_INITRD; | ||
4719 | } | ||
4720 | } else if (needs & NEED_KERNEL) { | ||
4721 | /* template is multi but new is not, | ||
4722 | * insert the kernel in the first | ||
4723 | * module slot | ||
4724 | */ | ||
4725 | tmplLine->type = | ||
4726 | preferredLineType(LT_KERNEL, | ||
4727 | config->cfi); | ||
4728 | free(tmplLine->elements[0].item); | ||
4729 | tmplLine->elements[0].item = | ||
4730 | strdup(getKeywordByType | ||
4731 | (tmplLine->type, | ||
4732 | config->cfi)->key); | ||
4733 | newLine = | ||
4734 | addLineTmpl(new, tmplLine, newLine, | ||
4735 | newKernelPath + | ||
4736 | strlen(prefix), | ||
4737 | config->cfi); | ||
4738 | needs &= ~NEED_KERNEL; | ||
4739 | } else if (needs & NEED_INITRD) { | ||
4740 | char *initrdVal; | ||
4741 | /* template is multi but new is not, | ||
4742 | * insert the initrd in the second | ||
4743 | * module slot | ||
4744 | */ | ||
4745 | tmplLine->type = | ||
4746 | preferredLineType(LT_INITRD, | ||
4747 | config->cfi); | ||
4748 | free(tmplLine->elements[0].item); | ||
4749 | tmplLine->elements[0].item = | ||
4750 | strdup(getKeywordByType | ||
4751 | (tmplLine->type, | ||
4752 | config->cfi)->key); | ||
4753 | initrdVal = | ||
4754 | getInitrdVal(config, prefix, | ||
4755 | tmplLine, | ||
4756 | newKernelInitrd, | ||
4757 | extraInitrds, | ||
4758 | extraInitrdCount); | ||
4759 | newLine = | ||
4760 | addLineTmpl(new, tmplLine, newLine, | ||
4761 | initrdVal, config->cfi); | ||
4762 | free(initrdVal); | ||
4763 | needs &= ~NEED_INITRD; | ||
4764 | } | ||
4765 | niro | 532 | |
4766 | niro | 3002 | } else if (isinitrd(tmplLine->type) |
4767 | && tmplLine->numElements >= 2) { | ||
4768 | if (needs & NEED_INITRD && new->multiboot | ||
4769 | && !template->multiboot | ||
4770 | && config->cfi->mbInitRdIsModule) { | ||
4771 | /* make sure we don't insert the | ||
4772 | * module initrd before the module | ||
4773 | * kernel... if we don't do it here, | ||
4774 | * it will be inserted following the | ||
4775 | * template. | ||
4776 | */ | ||
4777 | if (!needs & NEED_KERNEL) { | ||
4778 | char *initrdVal; | ||
4779 | niro | 532 | |
4780 | niro | 3002 | initrdVal = |
4781 | getInitrdVal(config, prefix, | ||
4782 | tmplLine, | ||
4783 | newKernelInitrd, | ||
4784 | extraInitrds, | ||
4785 | extraInitrdCount); | ||
4786 | newLine = | ||
4787 | addLine(new, config->cfi, | ||
4788 | LT_MBMODULE, | ||
4789 | config-> | ||
4790 | secondaryIndent, | ||
4791 | initrdVal); | ||
4792 | free(initrdVal); | ||
4793 | needs &= ~NEED_INITRD; | ||
4794 | } | ||
4795 | } else if (needs & NEED_INITRD) { | ||
4796 | char *initrdVal; | ||
4797 | initrdVal = | ||
4798 | getInitrdVal(config, prefix, | ||
4799 | tmplLine, | ||
4800 | newKernelInitrd, | ||
4801 | extraInitrds, | ||
4802 | extraInitrdCount); | ||
4803 | newLine = | ||
4804 | addLineTmpl(new, tmplLine, newLine, | ||
4805 | initrdVal, config->cfi); | ||
4806 | free(initrdVal); | ||
4807 | needs &= ~NEED_INITRD; | ||
4808 | } | ||
4809 | niro | 532 | |
4810 | niro | 3002 | } else if (tmplLine->type == LT_MENUENTRY && |
4811 | (needs & NEED_TITLE)) { | ||
4812 | requote(tmplLine, config->cfi); | ||
4813 | char *nkt = malloc(strlen(newKernelTitle) + 3); | ||
4814 | strcpy(nkt, "'"); | ||
4815 | strcat(nkt, newKernelTitle); | ||
4816 | strcat(nkt, "'"); | ||
4817 | newLine = | ||
4818 | addLineTmpl(new, tmplLine, newLine, nkt, | ||
4819 | config->cfi); | ||
4820 | free(nkt); | ||
4821 | needs &= ~NEED_TITLE; | ||
4822 | } else if (tmplLine->type == LT_TITLE && | ||
4823 | (needs & NEED_TITLE)) { | ||
4824 | if (tmplLine->numElements >= 2) { | ||
4825 | newLine = | ||
4826 | addLineTmpl(new, tmplLine, newLine, | ||
4827 | newKernelTitle, | ||
4828 | config->cfi); | ||
4829 | needs &= ~NEED_TITLE; | ||
4830 | } else if (tmplLine->numElements == 1 && | ||
4831 | config->cfi->titleBracketed) { | ||
4832 | /* addLineTmpl doesn't handle | ||
4833 | * titleBracketed */ | ||
4834 | newLine = | ||
4835 | addLine(new, config->cfi, LT_TITLE, | ||
4836 | tmplLine->indent, | ||
4837 | newKernelTitle); | ||
4838 | needs &= ~NEED_TITLE; | ||
4839 | } | ||
4840 | } else if (tmplLine->type == LT_ECHO) { | ||
4841 | requote(tmplLine, config->cfi); | ||
4842 | static const char *prefix = "'Loading "; | ||
4843 | if (tmplLine->numElements > 1 && | ||
4844 | strstr(tmplLine->elements[1].item, prefix) | ||
4845 | && masterLine->next | ||
4846 | && iskernel(masterLine->next->type)) { | ||
4847 | char *newTitle = | ||
4848 | malloc(strlen(prefix) + | ||
4849 | strlen(newKernelTitle) + 2); | ||
4850 | niro | 532 | |
4851 | niro | 3002 | strcpy(newTitle, prefix); |
4852 | strcat(newTitle, newKernelTitle); | ||
4853 | strcat(newTitle, "'"); | ||
4854 | newLine = | ||
4855 | addLine(new, config->cfi, LT_ECHO, | ||
4856 | tmplLine->indent, newTitle); | ||
4857 | free(newTitle); | ||
4858 | } else { | ||
4859 | /* pass through other lines from the | ||
4860 | * template */ | ||
4861 | newLine = | ||
4862 | addLineTmpl(new, tmplLine, newLine, | ||
4863 | NULL, config->cfi); | ||
4864 | } | ||
4865 | } else if (tmplLine->type == LT_DEVTREE && | ||
4866 | tmplLine->numElements == 2 | ||
4867 | && newDevTreePath) { | ||
4868 | newLine = | ||
4869 | addLineTmpl(new, tmplLine, newLine, | ||
4870 | newDevTreePath + strlen(prefix), | ||
4871 | niro | 1696 | config->cfi); |
4872 | niro | 3002 | needs &= ~NEED_DEVTREE; |
4873 | } else if (tmplLine->type == LT_ENTRY_END | ||
4874 | && needs & NEED_DEVTREE) { | ||
4875 | const char *ndtp = newDevTreePath; | ||
4876 | if (!strncmp | ||
4877 | (newDevTreePath, prefix, strlen(prefix))) | ||
4878 | ndtp += strlen(prefix); | ||
4879 | newLine = addLine(new, config->cfi, LT_DEVTREE, | ||
4880 | config->secondaryIndent, | ||
4881 | ndtp); | ||
4882 | needs &= ~NEED_DEVTREE; | ||
4883 | newLine = | ||
4884 | addLineTmpl(new, tmplLine, newLine, NULL, | ||
4885 | config->cfi); | ||
4886 | } else { | ||
4887 | /* pass through other lines from the template */ | ||
4888 | newLine = | ||
4889 | addLineTmpl(new, tmplLine, newLine, NULL, | ||
4890 | config->cfi); | ||
4891 | } | ||
4892 | niro | 914 | } |
4893 | |||
4894 | niro | 3002 | } else { |
4895 | /* don't have a template, so start the entry with the | ||
4896 | * appropriate starting line | ||
4897 | */ | ||
4898 | switch (config->cfi->entryStart) { | ||
4899 | case LT_KERNEL: | ||
4900 | case LT_KERNEL_EFI: | ||
4901 | case LT_KERNEL_16: | ||
4902 | if (new->multiboot && config->cfi->mbHyperFirst) { | ||
4903 | /* fall through to LT_HYPER */ | ||
4904 | } else { | ||
4905 | newLine = addLine(new, config->cfi, | ||
4906 | preferredLineType(LT_KERNEL, | ||
4907 | config-> | ||
4908 | cfi), | ||
4909 | config->primaryIndent, | ||
4910 | newKernelPath + | ||
4911 | strlen(prefix)); | ||
4912 | needs &= ~NEED_KERNEL; | ||
4913 | break; | ||
4914 | } | ||
4915 | niro | 532 | |
4916 | niro | 3002 | case LT_HYPER: |
4917 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
4918 | config->primaryIndent, | ||
4919 | newMBKernel + strlen(prefix)); | ||
4920 | needs &= ~NEED_MB; | ||
4921 | break; | ||
4922 | niro | 914 | |
4923 | niro | 3002 | case LT_MENUENTRY:{ |
4924 | char *nkt = malloc(strlen(newKernelTitle) + 3); | ||
4925 | strcpy(nkt, "'"); | ||
4926 | strcat(nkt, newKernelTitle); | ||
4927 | strcat(nkt, "'"); | ||
4928 | newLine = | ||
4929 | addLine(new, config->cfi, LT_MENUENTRY, | ||
4930 | config->primaryIndent, nkt); | ||
4931 | free(nkt); | ||
4932 | needs &= ~NEED_TITLE; | ||
4933 | needs |= NEED_END; | ||
4934 | break; | ||
4935 | } | ||
4936 | case LT_TITLE: | ||
4937 | if (useextlinuxmenu != 0) { // We just need useextlinuxmenu to not be zero (set above) | ||
4938 | char *templabel; | ||
4939 | int x = 0, y = 0; | ||
4940 | |||
4941 | templabel = strdup(newKernelTitle); | ||
4942 | while (templabel[x]) { | ||
4943 | if (templabel[x] == ' ') { | ||
4944 | y = x; | ||
4945 | while (templabel[y]) { | ||
4946 | templabel[y] = | ||
4947 | templabel[y + 1]; | ||
4948 | y++; | ||
4949 | } | ||
4950 | niro | 914 | } |
4951 | niro | 3002 | x++; |
4952 | niro | 914 | } |
4953 | niro | 3002 | newLine = addLine(new, config->cfi, LT_TITLE, |
4954 | config->primaryIndent, | ||
4955 | templabel); | ||
4956 | free(templabel); | ||
4957 | } else { | ||
4958 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
4959 | config->primaryIndent, | ||
4960 | newKernelTitle); | ||
4961 | niro | 914 | } |
4962 | niro | 3002 | needs &= ~NEED_TITLE; |
4963 | break; | ||
4964 | |||
4965 | default: | ||
4966 | abort(); | ||
4967 | niro | 914 | } |
4968 | niro | 3002 | } |
4969 | niro | 914 | |
4970 | niro | 3002 | struct singleLine *endLine = NULL; |
4971 | endLine = getLineByType(LT_ENTRY_END, new->lines); | ||
4972 | if (endLine) { | ||
4973 | removeLine(new, endLine); | ||
4974 | needs |= NEED_END; | ||
4975 | niro | 532 | } |
4976 | |||
4977 | niro | 3002 | /* add the remainder of the lines, i.e. those that either |
4978 | * weren't present in the template, or in the case of no template, | ||
4979 | * all the lines following the entryStart. | ||
4980 | */ | ||
4981 | if (needs & NEED_TITLE) { | ||
4982 | newLine = addLine(new, config->cfi, LT_TITLE, | ||
4983 | config->secondaryIndent, newKernelTitle); | ||
4984 | needs &= ~NEED_TITLE; | ||
4985 | } | ||
4986 | if ((needs & NEED_MB) && config->cfi->mbHyperFirst) { | ||
4987 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
4988 | config->secondaryIndent, | ||
4989 | newMBKernel + strlen(prefix)); | ||
4990 | needs &= ~NEED_MB; | ||
4991 | } | ||
4992 | if (needs & NEED_KERNEL) { | ||
4993 | newLine = addLine(new, config->cfi, | ||
4994 | (new->multiboot | ||
4995 | && getKeywordByType(LT_MBMODULE, | ||
4996 | config->cfi)) | ||
4997 | ? LT_MBMODULE : preferredLineType(LT_KERNEL, | ||
4998 | config-> | ||
4999 | cfi), | ||
5000 | config->secondaryIndent, | ||
5001 | newKernelPath + strlen(prefix)); | ||
5002 | needs &= ~NEED_KERNEL; | ||
5003 | } | ||
5004 | if (needs & NEED_MB) { | ||
5005 | newLine = addLine(new, config->cfi, LT_HYPER, | ||
5006 | config->secondaryIndent, | ||
5007 | newMBKernel + strlen(prefix)); | ||
5008 | needs &= ~NEED_MB; | ||
5009 | } | ||
5010 | if (needs & NEED_INITRD) { | ||
5011 | char *initrdVal; | ||
5012 | initrdVal = | ||
5013 | getInitrdVal(config, prefix, NULL, newKernelInitrd, | ||
5014 | extraInitrds, extraInitrdCount); | ||
5015 | newLine = | ||
5016 | addLine(new, config->cfi, | ||
5017 | (new->multiboot | ||
5018 | && getKeywordByType(LT_MBMODULE, config->cfi)) | ||
5019 | ? LT_MBMODULE : preferredLineType(LT_INITRD, | ||
5020 | config->cfi), | ||
5021 | config->secondaryIndent, initrdVal); | ||
5022 | free(initrdVal); | ||
5023 | needs &= ~NEED_INITRD; | ||
5024 | } | ||
5025 | if (needs & NEED_DEVTREE) { | ||
5026 | newLine = addLine(new, config->cfi, LT_DEVTREE, | ||
5027 | config->secondaryIndent, newDevTreePath); | ||
5028 | needs &= ~NEED_DEVTREE; | ||
5029 | } | ||
5030 | niro | 2709 | |
5031 | niro | 3002 | /* NEEDS_END must be last on bootloaders that need it... */ |
5032 | if (needs & NEED_END) { | ||
5033 | newLine = addLine(new, config->cfi, LT_ENTRY_END, | ||
5034 | config->secondaryIndent, NULL); | ||
5035 | needs &= ~NEED_END; | ||
5036 | } | ||
5037 | niro | 2685 | |
5038 | niro | 3002 | if (needs) { |
5039 | printf(_("grubby: needs=%d, aborting\n"), needs); | ||
5040 | abort(); | ||
5041 | } | ||
5042 | niro | 2709 | |
5043 | niro | 3010 | if (updateImage(config, indexs, prefix, newKernelArgs, NULL, |
5044 | niro | 3019 | newMBKernelArgs, NULL)) { |
5045 | config->isModified = 1; | ||
5046 | niro | 3002 | return 1; |
5047 | niro | 3019 | } |
5048 | niro | 914 | |
5049 | niro | 3002 | return 0; |
5050 | niro | 532 | } |
5051 | |||
5052 | niro | 3002 | int main(int argc, const char **argv) |
5053 | { | ||
5054 | poptContext optCon; | ||
5055 | const char *grubConfig = NULL; | ||
5056 | char *outputFile = NULL; | ||
5057 | int arg = 0; | ||
5058 | int flags = 0; | ||
5059 | int badImageOkay = 0; | ||
5060 | int configureGrub2 = 0; | ||
5061 | int configureLilo = 0, configureELilo = 0, configureGrub = 0; | ||
5062 | int configureYaboot = 0, configureSilo = 0, configureZipl = 0; | ||
5063 | int configureExtLinux = 0; | ||
5064 | int bootloaderProbe = 0; | ||
5065 | int extraInitrdCount = 0; | ||
5066 | char *updateKernelPath = NULL; | ||
5067 | char *newKernelPath = NULL; | ||
5068 | char *removeKernelPath = NULL; | ||
5069 | char *newKernelArgs = NULL; | ||
5070 | char *newKernelInitrd = NULL; | ||
5071 | char *newKernelTitle = NULL; | ||
5072 | char *newDevTreePath = NULL; | ||
5073 | char *newMBKernel = NULL; | ||
5074 | char *newMBKernelArgs = NULL; | ||
5075 | niro | 3007 | int newIndex = 0; |
5076 | niro | 3002 | char *removeMBKernelArgs = NULL; |
5077 | char *removeMBKernel = NULL; | ||
5078 | char *bootPrefix = NULL; | ||
5079 | char *defaultKernel = NULL; | ||
5080 | char *removeArgs = NULL; | ||
5081 | char *kernelInfo = NULL; | ||
5082 | char *extraInitrds[MAX_EXTRA_INITRDS] = { NULL }; | ||
5083 | char *envPath = NULL; | ||
5084 | const char *chptr = NULL; | ||
5085 | struct configFileInfo *cfi = NULL; | ||
5086 | struct grubConfig *config; | ||
5087 | struct singleEntry *template = NULL; | ||
5088 | int copyDefault = 0, makeDefault = 0; | ||
5089 | int displayDefault = 0; | ||
5090 | int displayDefaultIndex = 0; | ||
5091 | int displayDefaultTitle = 0; | ||
5092 | int defaultIndex = -1; | ||
5093 | struct poptOption options[] = { | ||
5094 | {"add-kernel", 0, POPT_ARG_STRING, &newKernelPath, 0, | ||
5095 | _("add an entry for the specified kernel"), _("kernel-path")}, | ||
5096 | {"add-multiboot", 0, POPT_ARG_STRING, &newMBKernel, 0, | ||
5097 | _("add an entry for the specified multiboot kernel"), NULL}, | ||
5098 | {"args", 0, POPT_ARG_STRING, &newKernelArgs, 0, | ||
5099 | _("default arguments for the new kernel or new arguments for " | ||
5100 | "kernel being updated"), _("args")}, | ||
5101 | {"mbargs", 0, POPT_ARG_STRING, &newMBKernelArgs, 0, | ||
5102 | _("default arguments for the new multiboot kernel or " | ||
5103 | "new arguments for multiboot kernel being updated"), NULL}, | ||
5104 | niro | 3139 | {"mounts", 0, POPT_ARG_STRING, &mounts, 0, |
5105 | _("path to fake /proc/mounts file (for testing only)"), | ||
5106 | _("mounts")}, | ||
5107 | niro | 3002 | {"bad-image-okay", 0, 0, &badImageOkay, 0, |
5108 | _ | ||
5109 | ("don't sanity check images in boot entries (for testing only)"), | ||
5110 | NULL}, | ||
5111 | {"boot-filesystem", 0, POPT_ARG_STRING, &bootPrefix, 0, | ||
5112 | _ | ||
5113 | niro | 3014 | ("filesystem which contains /boot directory (for testing only)"), |
5114 | niro | 3002 | _("bootfs")}, |
5115 | niro | 1854 | #if defined(__i386__) || defined(__x86_64__) || defined (__powerpc64__) || defined (__ia64__) |
5116 | niro | 3002 | {"bootloader-probe", 0, POPT_ARG_NONE, &bootloaderProbe, 0, |
5117 | _("check which bootloader is installed on boot sector")}, | ||
5118 | niro | 532 | #endif |
5119 | niro | 3002 | {"config-file", 'c', POPT_ARG_STRING, &grubConfig, 0, |
5120 | _("path to grub config file to update (\"-\" for stdin)"), | ||
5121 | _("path")}, | ||
5122 | {"copy-default", 0, 0, ©Default, 0, | ||
5123 | _("use the default boot entry as a template for the new entry " | ||
5124 | "being added; if the default is not a linux image, or if " | ||
5125 | "the kernel referenced by the default image does not exist, " | ||
5126 | "the first linux entry whose kernel does exist is used as the " | ||
5127 | "template"), NULL}, | ||
5128 | {"debug", 0, 0, &debug, 0, | ||
5129 | _("print debugging information for failures")}, | ||
5130 | {"default-kernel", 0, 0, &displayDefault, 0, | ||
5131 | _("display the path of the default kernel")}, | ||
5132 | {"default-index", 0, 0, &displayDefaultIndex, 0, | ||
5133 | _("display the index of the default kernel")}, | ||
5134 | {"default-title", 0, 0, &displayDefaultTitle, 0, | ||
5135 | _("display the title of the default kernel")}, | ||
5136 | {"devtree", 0, POPT_ARG_STRING, &newDevTreePath, 0, | ||
5137 | _("device tree file for new stanza"), _("dtb-path")}, | ||
5138 | {"devtreedir", 0, POPT_ARG_STRING, &newDevTreePath, 0, | ||
5139 | _("device tree directory for new stanza"), _("dtb-path")}, | ||
5140 | {"elilo", 0, POPT_ARG_NONE, &configureELilo, 0, | ||
5141 | _("configure elilo bootloader")}, | ||
5142 | {"efi", 0, POPT_ARG_NONE, &isEfi, 0, | ||
5143 | _("force grub2 stanzas to use efi")}, | ||
5144 | {"env", 0, POPT_ARG_STRING, &envPath, 0, | ||
5145 | _("path for environment data"), | ||
5146 | _("path")}, | ||
5147 | {"extlinux", 0, POPT_ARG_NONE, &configureExtLinux, 0, | ||
5148 | _("configure extlinux bootloader (from syslinux)")}, | ||
5149 | {"grub", 0, POPT_ARG_NONE, &configureGrub, 0, | ||
5150 | _("configure grub bootloader")}, | ||
5151 | {"grub2", 0, POPT_ARG_NONE, &configureGrub2, 0, | ||
5152 | _("configure grub2 bootloader")}, | ||
5153 | {"info", 0, POPT_ARG_STRING, &kernelInfo, 0, | ||
5154 | _("display boot information for specified kernel"), | ||
5155 | _("kernel-path")}, | ||
5156 | {"initrd", 0, POPT_ARG_STRING, &newKernelInitrd, 0, | ||
5157 | _("initrd image for the new kernel"), _("initrd-path")}, | ||
5158 | {"extra-initrd", 'i', POPT_ARG_STRING, NULL, 'i', | ||
5159 | _ | ||
5160 | ("auxiliary initrd image for things other than the new kernel"), | ||
5161 | _("initrd-path")}, | ||
5162 | {"lilo", 0, POPT_ARG_NONE, &configureLilo, 0, | ||
5163 | _("configure lilo bootloader")}, | ||
5164 | {"make-default", 0, 0, &makeDefault, 0, | ||
5165 | _("make the newly added entry the default boot entry"), NULL}, | ||
5166 | {"output-file", 'o', POPT_ARG_STRING, &outputFile, 0, | ||
5167 | _("path to output updated config file (\"-\" for stdout)"), | ||
5168 | _("path")}, | ||
5169 | {"remove-args", 0, POPT_ARG_STRING, &removeArgs, 0, | ||
5170 | _("remove kernel arguments"), NULL}, | ||
5171 | {"remove-mbargs", 0, POPT_ARG_STRING, &removeMBKernelArgs, 0, | ||
5172 | _("remove multiboot kernel arguments"), NULL}, | ||
5173 | {"remove-kernel", 0, POPT_ARG_STRING, &removeKernelPath, 0, | ||
5174 | _("remove all entries for the specified kernel"), | ||
5175 | _("kernel-path")}, | ||
5176 | {"remove-multiboot", 0, POPT_ARG_STRING, &removeMBKernel, 0, | ||
5177 | _("remove all entries for the specified multiboot kernel"), | ||
5178 | NULL}, | ||
5179 | {"set-default", 0, POPT_ARG_STRING, &defaultKernel, 0, | ||
5180 | _("make the first entry referencing the specified kernel " | ||
5181 | "the default"), _("kernel-path")}, | ||
5182 | {"set-default-index", 0, POPT_ARG_INT, &defaultIndex, 0, | ||
5183 | _("make the given entry index the default entry"), | ||
5184 | _("entry-index")}, | ||
5185 | niro | 3007 | {"set-index", 0, POPT_ARG_INT, &newIndex, 0, |
5186 | _("use the given index when creating a new entry"), | ||
5187 | _("entry-index")}, | ||
5188 | niro | 3002 | {"silo", 0, POPT_ARG_NONE, &configureSilo, 0, |
5189 | _("configure silo bootloader")}, | ||
5190 | {"title", 0, POPT_ARG_STRING, &newKernelTitle, 0, | ||
5191 | _("title to use for the new kernel entry"), _("entry-title")}, | ||
5192 | {"update-kernel", 0, POPT_ARG_STRING, &updateKernelPath, 0, | ||
5193 | _("updated information for the specified kernel"), | ||
5194 | _("kernel-path")}, | ||
5195 | {"version", 'v', 0, NULL, 'v', | ||
5196 | _("print the version of this program and exit"), NULL}, | ||
5197 | {"yaboot", 0, POPT_ARG_NONE, &configureYaboot, 0, | ||
5198 | _("configure yaboot bootloader")}, | ||
5199 | {"zipl", 0, POPT_ARG_NONE, &configureZipl, 0, | ||
5200 | _("configure zipl bootloader")}, | ||
5201 | POPT_AUTOHELP {0, 0, 0, 0, 0} | ||
5202 | }; | ||
5203 | niro | 532 | |
5204 | niro | 3002 | useextlinuxmenu = 0; |
5205 | niro | 914 | |
5206 | niro | 3002 | int i = 0; |
5207 | for (int j = 1; j < argc; j++) | ||
5208 | i += strlen(argv[j]) + 1; | ||
5209 | saved_command_line = malloc(i); | ||
5210 | if (!saved_command_line) { | ||
5211 | fprintf(stderr, "grubby: %m\n"); | ||
5212 | exit(1); | ||
5213 | } | ||
5214 | saved_command_line[0] = '\0'; | ||
5215 | for (int j = 1; j < argc; j++) { | ||
5216 | strcat(saved_command_line, argv[j]); | ||
5217 | strncat(saved_command_line, j == argc - 1 ? "" : " ", 1); | ||
5218 | } | ||
5219 | niro | 2236 | |
5220 | niro | 3002 | optCon = poptGetContext("grubby", argc, argv, options, 0); |
5221 | poptReadDefaultConfig(optCon, 1); | ||
5222 | niro | 532 | |
5223 | niro | 3002 | while ((arg = poptGetNextOpt(optCon)) >= 0) { |
5224 | switch (arg) { | ||
5225 | case 'v': | ||
5226 | printf("grubby version %s\n", VERSION); | ||
5227 | exit(0); | ||
5228 | break; | ||
5229 | case 'i': | ||
5230 | if (extraInitrdCount < MAX_EXTRA_INITRDS) { | ||
5231 | extraInitrds[extraInitrdCount++] = | ||
5232 | strdup(poptGetOptArg(optCon)); | ||
5233 | } else { | ||
5234 | fprintf(stderr, | ||
5235 | _ | ||
5236 | ("grubby: extra initrd maximum is %d\n"), | ||
5237 | extraInitrdCount); | ||
5238 | return 1; | ||
5239 | } | ||
5240 | break; | ||
5241 | } | ||
5242 | } | ||
5243 | |||
5244 | if (arg < -1) { | ||
5245 | fprintf(stderr, _("grubby: bad argument %s: %s\n"), | ||
5246 | poptBadOption(optCon, POPT_BADOPTION_NOALIAS), | ||
5247 | poptStrerror(arg)); | ||
5248 | niro | 914 | return 1; |
5249 | niro | 532 | } |
5250 | |||
5251 | niro | 3002 | if ((chptr = poptGetArg(optCon))) { |
5252 | fprintf(stderr, _("grubby: unexpected argument %s\n"), chptr); | ||
5253 | return 1; | ||
5254 | } | ||
5255 | niro | 532 | |
5256 | niro | 3002 | if ((configureLilo + configureGrub2 + configureGrub + configureELilo + |
5257 | configureYaboot + configureSilo + configureZipl + | ||
5258 | configureExtLinux) > 1) { | ||
5259 | fprintf(stderr, | ||
5260 | _("grubby: cannot specify multiple bootloaders\n")); | ||
5261 | return 1; | ||
5262 | } else if (bootloaderProbe && grubConfig) { | ||
5263 | fprintf(stderr, | ||
5264 | _ | ||
5265 | ("grubby: cannot specify config file with --bootloader-probe\n")); | ||
5266 | return 1; | ||
5267 | } else if (configureGrub2) { | ||
5268 | cfi = &grub2ConfigType; | ||
5269 | if (envPath) | ||
5270 | cfi->envFile = envPath; | ||
5271 | } else if (configureLilo) { | ||
5272 | cfi = &liloConfigType; | ||
5273 | } else if (configureGrub) { | ||
5274 | cfi = &grubConfigType; | ||
5275 | } else if (configureELilo) { | ||
5276 | cfi = &eliloConfigType; | ||
5277 | } else if (configureYaboot) { | ||
5278 | cfi = &yabootConfigType; | ||
5279 | } else if (configureSilo) { | ||
5280 | cfi = &siloConfigType; | ||
5281 | } else if (configureZipl) { | ||
5282 | cfi = &ziplConfigType; | ||
5283 | } else if (configureExtLinux) { | ||
5284 | cfi = &extlinuxConfigType; | ||
5285 | useextlinuxmenu = 1; | ||
5286 | } | ||
5287 | niro | 532 | |
5288 | niro | 3002 | if (!cfi) { |
5289 | if (grub2FindConfig(&grub2ConfigType)) { | ||
5290 | cfi = &grub2ConfigType; | ||
5291 | niro | 3137 | configureGrub2 = 1; |
5292 | niro | 3002 | if (envPath) |
5293 | cfi->envFile = envPath; | ||
5294 | niro | 3137 | } else { |
5295 | niro | 3002 | #ifdef __ia64__ |
5296 | cfi = &eliloConfigType; | ||
5297 | niro | 3137 | configureLilo = 1; |
5298 | #elif defined(__powerpc__) | ||
5299 | niro | 3002 | cfi = &yabootConfigType; |
5300 | niro | 3137 | configureYaboot = 1; |
5301 | #elif defined(__sparc__) | ||
5302 | niro | 3002 | cfi = &siloConfigType; |
5303 | niro | 3137 | configureSilo = 1; |
5304 | #elif defined(__s390__) || defined(__s390x__) | ||
5305 | niro | 3002 | cfi = &ziplConfigType; |
5306 | niro | 3137 | configureZipl = 1; |
5307 | niro | 3002 | #else |
5308 | cfi = &grubConfigType; | ||
5309 | niro | 3137 | configureGrub = 1; |
5310 | niro | 3002 | #endif |
5311 | niro | 3137 | } |
5312 | niro | 3002 | } |
5313 | niro | 532 | |
5314 | niro | 3002 | if (!grubConfig) { |
5315 | if (cfi->findConfig) | ||
5316 | grubConfig = cfi->findConfig(cfi); | ||
5317 | if (!grubConfig) | ||
5318 | grubConfig = cfi->defaultConfig; | ||
5319 | } | ||
5320 | niro | 532 | |
5321 | niro | 3002 | if (bootloaderProbe && (displayDefault || kernelInfo || |
5322 | newKernelPath || removeKernelPath || makeDefault | ||
5323 | || defaultKernel || displayDefaultIndex | ||
5324 | || displayDefaultTitle | ||
5325 | || (defaultIndex >= 0))) { | ||
5326 | fprintf(stderr, | ||
5327 | _("grubby: --bootloader-probe may not be used with " | ||
5328 | niro | 532 | "specified option")); |
5329 | niro | 3002 | return 1; |
5330 | } | ||
5331 | niro | 532 | |
5332 | niro | 3002 | if ((displayDefault || kernelInfo) && (newKernelPath || |
5333 | removeKernelPath)) { | ||
5334 | fprintf(stderr, _("grubby: --default-kernel and --info may not " | ||
5335 | "be used when adding or removing kernels\n")); | ||
5336 | return 1; | ||
5337 | } | ||
5338 | niro | 532 | |
5339 | niro | 3002 | if (newKernelPath && !newKernelTitle) { |
5340 | fprintf(stderr, _("grubby: kernel title must be specified\n")); | ||
5341 | return 1; | ||
5342 | } else if (!newKernelPath && (copyDefault || | ||
5343 | (newKernelInitrd && !updateKernelPath) || | ||
5344 | makeDefault || extraInitrdCount > 0)) { | ||
5345 | fprintf(stderr, _("grubby: kernel path expected\n")); | ||
5346 | return 1; | ||
5347 | } | ||
5348 | niro | 532 | |
5349 | niro | 3002 | if (newKernelPath && updateKernelPath) { |
5350 | fprintf(stderr, _("grubby: --add-kernel and --update-kernel may" | ||
5351 | "not be used together")); | ||
5352 | return 1; | ||
5353 | } | ||
5354 | niro | 532 | |
5355 | niro | 3002 | if (makeDefault && defaultKernel) { |
5356 | fprintf(stderr, _("grubby: --make-default and --default-kernel " | ||
5357 | "may not be used together\n")); | ||
5358 | return 1; | ||
5359 | } else if (defaultKernel && removeKernelPath && | ||
5360 | !strcmp(defaultKernel, removeKernelPath)) { | ||
5361 | fprintf(stderr, | ||
5362 | _("grubby: cannot make removed kernel the default\n")); | ||
5363 | return 1; | ||
5364 | } else if (defaultKernel && newKernelPath && | ||
5365 | !strcmp(defaultKernel, newKernelPath)) { | ||
5366 | makeDefault = 1; | ||
5367 | defaultKernel = NULL; | ||
5368 | } else if (defaultKernel && (defaultIndex >= 0)) { | ||
5369 | fprintf(stderr, | ||
5370 | _("grubby: --set-default and --set-default-index " | ||
5371 | niro | 532 | "may not be used together\n")); |
5372 | niro | 3002 | return 1; |
5373 | } | ||
5374 | niro | 532 | |
5375 | niro | 3002 | if (grubConfig && !strcmp(grubConfig, "-") && !outputFile) { |
5376 | fprintf(stderr, | ||
5377 | _("grubby: output file must be specified if stdin " | ||
5378 | "is used\n")); | ||
5379 | return 1; | ||
5380 | } | ||
5381 | niro | 532 | |
5382 | niro | 3002 | if (!removeKernelPath && !newKernelPath && !displayDefault |
5383 | && !defaultKernel && !kernelInfo && !bootloaderProbe | ||
5384 | && !updateKernelPath && !removeMBKernel && !displayDefaultIndex | ||
5385 | && !displayDefaultTitle && (defaultIndex == -1)) { | ||
5386 | fprintf(stderr, _("grubby: no action specified\n")); | ||
5387 | return 1; | ||
5388 | } | ||
5389 | niro | 532 | |
5390 | niro | 3002 | flags |= badImageOkay ? GRUBBY_BADIMAGE_OKAY : 0; |
5391 | niro | 532 | |
5392 | niro | 3002 | if (cfi->needsBootPrefix) { |
5393 | if (!bootPrefix) { | ||
5394 | bootPrefix = findBootPrefix(); | ||
5395 | if (!bootPrefix) | ||
5396 | return 1; | ||
5397 | } else { | ||
5398 | /* this shouldn't end with a / */ | ||
5399 | if (bootPrefix[strlen(bootPrefix) - 1] == '/') | ||
5400 | bootPrefix[strlen(bootPrefix) - 1] = '\0'; | ||
5401 | } | ||
5402 | niro | 532 | } else { |
5403 | niro | 3002 | bootPrefix = ""; |
5404 | niro | 532 | } |
5405 | |||
5406 | niro | 3002 | if (!cfi->mbAllowExtraInitRds && extraInitrdCount > 0) { |
5407 | fprintf(stderr, | ||
5408 | _("grubby: %s doesn't allow multiple initrds\n"), | ||
5409 | cfi->defaultConfig); | ||
5410 | return 1; | ||
5411 | } | ||
5412 | niro | 914 | |
5413 | niro | 3002 | if (bootloaderProbe) { |
5414 | int lrc = 0, grc = 0, gr2c = 0, extrc = 0, yrc = 0, erc = 0; | ||
5415 | struct grubConfig *lconfig, *gconfig, *yconfig, *econfig; | ||
5416 | niro | 532 | |
5417 | niro | 3002 | const char *grub2config = grub2FindConfig(&grub2ConfigType); |
5418 | if (grub2config) { | ||
5419 | gconfig = readConfig(grub2config, &grub2ConfigType); | ||
5420 | if (!gconfig) | ||
5421 | gr2c = 1; | ||
5422 | else | ||
5423 | gr2c = checkForGrub2(gconfig); | ||
5424 | } | ||
5425 | niro | 1696 | |
5426 | niro | 3002 | const char *grubconfig = grubFindConfig(&grubConfigType); |
5427 | if (!access(grubconfig, F_OK)) { | ||
5428 | gconfig = readConfig(grubconfig, &grubConfigType); | ||
5429 | if (!gconfig) | ||
5430 | grc = 1; | ||
5431 | else | ||
5432 | grc = checkForGrub(gconfig); | ||
5433 | } | ||
5434 | niro | 532 | |
5435 | niro | 3002 | if (!access(liloConfigType.defaultConfig, F_OK)) { |
5436 | lconfig = | ||
5437 | readConfig(liloConfigType.defaultConfig, | ||
5438 | &liloConfigType); | ||
5439 | if (!lconfig) | ||
5440 | lrc = 1; | ||
5441 | else | ||
5442 | lrc = checkForLilo(lconfig); | ||
5443 | } | ||
5444 | niro | 532 | |
5445 | niro | 3002 | if (!access(eliloConfigType.defaultConfig, F_OK)) { |
5446 | econfig = readConfig(eliloConfigType.defaultConfig, | ||
5447 | &eliloConfigType); | ||
5448 | if (!econfig) | ||
5449 | erc = 1; | ||
5450 | else | ||
5451 | erc = checkForElilo(econfig); | ||
5452 | } | ||
5453 | niro | 1854 | |
5454 | niro | 3002 | if (!access(extlinuxConfigType.defaultConfig, F_OK)) { |
5455 | lconfig = | ||
5456 | readConfig(extlinuxConfigType.defaultConfig, | ||
5457 | &extlinuxConfigType); | ||
5458 | if (!lconfig) | ||
5459 | extrc = 1; | ||
5460 | else | ||
5461 | extrc = checkForExtLinux(lconfig); | ||
5462 | } | ||
5463 | niro | 914 | |
5464 | niro | 3002 | if (!access(yabootConfigType.defaultConfig, F_OK)) { |
5465 | yconfig = readConfig(yabootConfigType.defaultConfig, | ||
5466 | &yabootConfigType); | ||
5467 | if (!yconfig) | ||
5468 | yrc = 1; | ||
5469 | else | ||
5470 | yrc = checkForYaboot(yconfig); | ||
5471 | } | ||
5472 | niro | 532 | |
5473 | niro | 3002 | if (lrc == 1 || grc == 1 || gr2c == 1 || extrc == 1 || yrc == 1 |
5474 | || erc == 1) | ||
5475 | return 1; | ||
5476 | niro | 1853 | |
5477 | niro | 3002 | if (lrc == 2) |
5478 | printf("lilo\n"); | ||
5479 | if (gr2c == 2) | ||
5480 | printf("grub2\n"); | ||
5481 | if (grc == 2) | ||
5482 | printf("grub\n"); | ||
5483 | if (extrc == 2) | ||
5484 | printf("extlinux\n"); | ||
5485 | if (yrc == 2) | ||
5486 | printf("yaboot\n"); | ||
5487 | if (erc == 2) | ||
5488 | printf("elilo\n"); | ||
5489 | niro | 1853 | |
5490 | niro | 3002 | return 0; |
5491 | } | ||
5492 | niro | 532 | |
5493 | niro | 3002 | if (grubConfig == NULL) { |
5494 | printf("Could not find bootloader configuration file.\n"); | ||
5495 | exit(1); | ||
5496 | } | ||
5497 | niro | 532 | |
5498 | niro | 3002 | config = readConfig(grubConfig, cfi); |
5499 | if (!config) | ||
5500 | return 1; | ||
5501 | niro | 2246 | |
5502 | niro | 3002 | if (displayDefault) { |
5503 | struct singleLine *line; | ||
5504 | struct singleEntry *entry; | ||
5505 | niro | 3138 | size_t rs; |
5506 | niro | 532 | |
5507 | niro | 3018 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5508 | niro | 3002 | return 0; |
5509 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && | ||
5510 | cfi->defaultIsSaved) | ||
5511 | niro | 3018 | config->defaultImage = FIRST_ENTRY_INDEX; |
5512 | niro | 3002 | entry = findEntryByIndex(config, config->defaultImage); |
5513 | if (!entry) | ||
5514 | return 0; | ||
5515 | if (!suitableImage(entry, bootPrefix, 0, flags)) | ||
5516 | return 0; | ||
5517 | niro | 532 | |
5518 | niro | 3002 | line = |
5519 | getLineByType(LT_KERNEL | LT_HYPER | LT_KERNEL_EFI | | ||
5520 | LT_KERNEL_16, entry->lines); | ||
5521 | if (!line) | ||
5522 | return 0; | ||
5523 | niro | 532 | |
5524 | niro | 3138 | rs = getRootSpecifier(line->elements[1].item); |
5525 | printf("%s%s\n", bootPrefix, line->elements[1].item + rs); | ||
5526 | niro | 532 | |
5527 | niro | 3002 | return 0; |
5528 | niro | 532 | |
5529 | niro | 3002 | } else if (displayDefaultTitle) { |
5530 | struct singleLine *line; | ||
5531 | struct singleEntry *entry; | ||
5532 | niro | 1720 | |
5533 | niro | 3018 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5534 | niro | 3002 | return 0; |
5535 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && | ||
5536 | cfi->defaultIsSaved) | ||
5537 | niro | 3018 | config->defaultImage = FIRST_ENTRY_INDEX; |
5538 | niro | 3002 | entry = findEntryByIndex(config, config->defaultImage); |
5539 | if (!entry) | ||
5540 | return 0; | ||
5541 | niro | 1721 | |
5542 | niro | 3002 | if (!configureGrub2) { |
5543 | char *title; | ||
5544 | line = getLineByType(LT_TITLE, entry->lines); | ||
5545 | if (!line) | ||
5546 | return 0; | ||
5547 | title = extractTitle(config, line); | ||
5548 | if (!title) | ||
5549 | return 0; | ||
5550 | printf("%s\n", title); | ||
5551 | free(title); | ||
5552 | } else { | ||
5553 | char *title; | ||
5554 | niro | 1721 | |
5555 | niro | 3002 | dbgPrintf |
5556 | ("This is GRUB2, default title is embeded in menuentry\n"); | ||
5557 | line = getLineByType(LT_MENUENTRY, entry->lines); | ||
5558 | if (!line) | ||
5559 | return 0; | ||
5560 | title = grub2ExtractTitle(line); | ||
5561 | if (title) | ||
5562 | printf("%s\n", title); | ||
5563 | } | ||
5564 | niro | 2992 | return 0; |
5565 | niro | 1721 | |
5566 | niro | 3002 | } else if (displayDefaultIndex) { |
5567 | niro | 3018 | if (config->defaultImage == NO_DEFAULT_ENTRY) |
5568 | niro | 3002 | return 0; |
5569 | if (config->defaultImage == DEFAULT_SAVED_GRUB2 && | ||
5570 | cfi->defaultIsSaved) | ||
5571 | niro | 3018 | config->defaultImage = FIRST_ENTRY_INDEX; |
5572 | niro | 3002 | printf("%i\n", config->defaultImage); |
5573 | niro | 2992 | return 0; |
5574 | niro | 1721 | |
5575 | niro | 3002 | } else if (kernelInfo) |
5576 | return displayInfo(config, kernelInfo, bootPrefix); | ||
5577 | niro | 1720 | |
5578 | niro | 3002 | if (copyDefault) { |
5579 | template = findTemplate(config, bootPrefix, NULL, 0, flags); | ||
5580 | if (!template) | ||
5581 | return 1; | ||
5582 | } | ||
5583 | niro | 532 | |
5584 | niro | 3002 | markRemovedImage(config, removeKernelPath, bootPrefix); |
5585 | markRemovedImage(config, removeMBKernel, bootPrefix); | ||
5586 | setDefaultImage(config, newKernelPath != NULL, defaultKernel, | ||
5587 | niro | 3021 | makeDefault, bootPrefix, flags, defaultIndex, |
5588 | newIndex); | ||
5589 | niro | 3002 | setFallbackImage(config, newKernelPath != NULL); |
5590 | if (updateImage(config, updateKernelPath, bootPrefix, newKernelArgs, | ||
5591 | removeArgs, newMBKernelArgs, removeMBKernelArgs)) | ||
5592 | return 1; | ||
5593 | if (updateKernelPath && newKernelInitrd) { | ||
5594 | if (newMBKernel) { | ||
5595 | if (addMBInitrd(config, newMBKernel, updateKernelPath, | ||
5596 | niro | 2960 | bootPrefix, newKernelInitrd, |
5597 | newKernelTitle)) | ||
5598 | niro | 3002 | return 1; |
5599 | } else { | ||
5600 | if (updateInitrd(config, updateKernelPath, bootPrefix, | ||
5601 | newKernelInitrd, newKernelTitle)) | ||
5602 | return 1; | ||
5603 | } | ||
5604 | } | ||
5605 | if (addNewKernel(config, template, bootPrefix, newKernelPath, | ||
5606 | newKernelTitle, newKernelArgs, newKernelInitrd, | ||
5607 | (const char **)extraInitrds, extraInitrdCount, | ||
5608 | niro | 3007 | newMBKernel, newMBKernelArgs, newDevTreePath, |
5609 | newIndex)) | ||
5610 | niro | 3002 | return 1; |
5611 | niro | 532 | |
5612 | niro | 3002 | if (numEntries(config) == 0) { |
5613 | fprintf(stderr, | ||
5614 | _("grubby: doing this would leave no kernel entries. " | ||
5615 | "Not writing out new config.\n")); | ||
5616 | return 1; | ||
5617 | } | ||
5618 | niro | 532 | |
5619 | niro | 3002 | if (!outputFile) |
5620 | outputFile = (char *)grubConfig; | ||
5621 | niro | 532 | |
5622 | niro | 3002 | return writeConfig(config, outputFile, bootPrefix); |
5623 | niro | 532 | } |