1 #include <string.h>
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include <stdint.h>
5 #include <stdarg.h>
6 #include <inttypes.h>
7 #include <errno.h>
8 #include <unistd.h>
9 #include <fcntl.h>
10 #include <assert.h>
11 #include <getopt.h>
12
13 #include <libcryptsetup.h>
14
15 #include "config.h"
16
17 #include "cryptsetup.h"
18
19 static int opt_verbose = 0;
20 static int opt_debug = 0;
21 static char *opt_cipher = NULL;
22 static char *opt_hash = NULL;
23 static int opt_verify_passphrase = 0;
24 static char *opt_key_file = NULL;
25 static char *opt_master_key_file = NULL;
26 static char *opt_header_backup_file = NULL;
27 static unsigned int opt_key_size = 0;
28 static int opt_key_slot = CRYPT_ANY_SLOT;
29 static uint64_t opt_size = 0;
30 static uint64_t opt_offset = 0;
31 static uint64_t opt_skip = 0;
32 static int opt_readonly = 0;
33 static int opt_iteration_time = 1000;
34 static int opt_batch_mode = 0;
35 static int opt_version_mode = 0;
36 static int opt_timeout = 0;
37 static int opt_tries = 3;
38 static int opt_align_payload = 0;
39 static int opt_non_exclusive = 0;
40
41 static const char **action_argv;
42 static int action_argc;
43
44 static int action_create(int arg);
45 static int action_remove(int arg);
46 static int action_resize(int arg);
47 static int action_status(int arg);
48 static int action_luksFormat(int arg);
49 static int action_luksOpen(int arg);
50 static int action_luksAddKey(int arg);
51 static int action_luksDelKey(int arg);
52 static int action_luksKillSlot(int arg);
53 static int action_luksRemoveKey(int arg);
54 static int action_isLuks(int arg);
55 static int action_luksUUID(int arg);
56 static int action_luksDump(int arg);
57 static int action_luksSuspend(int arg);
58 static int action_luksResume(int arg);
59 static int action_luksBackup(int arg);
60 static int action_luksRestore(int arg);
61
62 static struct action_type {
63 const char *type;
64 int (*handler)(int);
65 int arg;
66 int required_action_argc;
67 int required_memlock;
68 const char *arg_desc;
69 const char *desc;
70 } action_types[] = {
71 { "create", action_create, 0, 2, 1, N_("<name> <device>"),N_("create device") },
72 { "remove", action_remove, 0, 1, 1, N_("<name>"), N_("remove device") },
73 { "resize", action_resize, 0, 1, 1, N_("<name>"), N_("resize active device") },
74 { "status", action_status, 0, 1, 0, N_("<name>"), N_("show device status") },
75 { "luksFormat", action_luksFormat, 0, 1, 1, N_("<device> [<new key file>]"), N_("formats a LUKS device") },
76 { "luksOpen", action_luksOpen, 0, 2, 1, N_("<device> <name> "), N_("open LUKS device as mapping <name>") },
77 { "luksAddKey", action_luksAddKey, 0, 1, 1, N_("<device> [<new key file>]"), N_("add key to LUKS device") },
78 { "luksRemoveKey",action_luksRemoveKey, 0, 1, 1, N_("<device> [<key file>]"), N_("removes supplied key or key file from LUKS device") },
79 { "luksKillSlot", action_luksKillSlot, 0, 2, 1, N_("<device> <key slot>"), N_("wipes key with number <key slot> from LUKS device") },
80 { "luksUUID", action_luksUUID, 0, 1, 0, N_("<device>"), N_("print UUID of LUKS device") },
81 { "isLuks", action_isLuks, 0, 1, 0, N_("<device>"), N_("tests <device> for LUKS partition header") },
82 { "luksClose", action_remove, 0, 1, 1, N_("<name>"), N_("remove LUKS mapping") },
83 { "luksDump", action_luksDump, 0, 1, 0, N_("<device>"), N_("dump LUKS partition information") },
84 { "luksSuspend",action_luksSuspend, 0, 1, 1, N_("<device>"), N_("Suspend LUKS device and wipe key (all IOs are frozen).") },
85 { "luksResume", action_luksResume, 0, 1, 1, N_("<device>"), N_("Resume suspended LUKS device.") },
86 { "luksHeaderBackup",action_luksBackup, 0, 1, 1, N_("<device>"), N_("Backup LUKS device header and keyslots") },
87 { "luksHeaderRestore",action_luksRestore,0,1, 1, N_("<device>"), N_("Restore LUKS device header and keyslots") },
88 { "luksDelKey", action_luksDelKey, 0, 2, 1, N_("<device> <key slot>"), N_("identical to luksKillSlot - DEPRECATED - see man page") },
89 { "reload", action_create, 1, 2, 1, N_("<name> <device>"), N_("modify active device - DEPRECATED - see man page") },
90 { NULL, NULL, 0, 0, 0, NULL, NULL }
91 };
92
clogger(struct crypt_device * cd,int level,const char * file,int line,const char * format,...)93 static void clogger(struct crypt_device *cd, int level, const char *file,
94 int line, const char *format, ...)
95 {
96 va_list argp;
97 char *target = NULL;
98
99 va_start(argp, format);
100
101 if (vasprintf(&target, format, argp) > 0) {
102 if (level >= 0) {
103 crypt_log(cd, level, target);
104 #ifdef CRYPT_DEBUG
105 } else if (opt_debug)
106 printf("# %s:%d %s\n", file ?: "?", line, target);
107 #else
108 } else if (opt_debug)
109 printf("# %s\n", target);
110 #endif
111 }
112
113 va_end(argp);
114 free(target);
115 }
116
117 /* Interface Callbacks */
yesDialog(char * msg)118 static int yesDialog(char *msg)
119 {
120 char *answer = NULL;
121 size_t size = 0;
122 int r = 1;
123
124 if(isatty(0) && !opt_batch_mode) {
125 log_std("\nWARNING!\n========\n");
126 log_std("%s\n\nAre you sure? (Type uppercase yes): ", msg);
127 if(getline(&answer, &size, stdin) == -1) {
128 perror("getline");
129 free(answer);
130 return 0;
131 }
132 if(strcmp(answer, "YES\n"))
133 r = 0;
134 free(answer);
135 }
136
137 return r;
138 }
139
cmdLineLog(int level,char * msg)140 static void cmdLineLog(int level, char *msg) {
141 switch(level) {
142
143 case CRYPT_LOG_NORMAL:
144 fputs(msg, stdout);
145 break;
146 case CRYPT_LOG_VERBOSE:
147 if (opt_verbose)
148 fputs(msg, stdout);
149 break;
150 case CRYPT_LOG_ERROR:
151 fputs(msg, stderr);
152 break;
153 default:
154 fprintf(stderr, "Internal error on logging class for msg: %s", msg);
155 break;
156 }
157 }
158
159 static struct interface_callbacks cmd_icb = {
160 .yesDialog = yesDialog,
161 .log = cmdLineLog,
162 };
163
_log(int level,const char * msg,void * usrptr)164 static void _log(int level, const char *msg, void *usrptr)
165 {
166 cmdLineLog(level, (char *)msg);
167 }
168
_yesDialog(const char * msg,void * usrptr)169 static int _yesDialog(const char *msg, void *usrptr)
170 {
171 return yesDialog((char*)msg);
172 }
173
174 /* End ICBs */
175
show_status(int errcode)176 static void show_status(int errcode)
177 {
178 char error[256];
179 int ret;
180
181 if(!opt_verbose)
182 return;
183
184 if(!errcode) {
185 log_std(_("Command successful.\n"));
186 return;
187 }
188
189 crypt_get_error(error, sizeof(error));
190
191 if (!error[0]) {
192 ret = strerror_r(-errcode, error, sizeof(error));
193 }
194
195 log_err(_("Command failed with code %i"), -errcode);
196 if (*error)
197 log_err(": %s\n", error);
198 else
199 log_err(".\n");
200 }
201
action_create(int reload)202 static int action_create(int reload)
203 {
204 struct crypt_options options = {
205 .name = action_argv[0],
206 .device = action_argv[1],
207 .cipher = opt_cipher ? opt_cipher : DEFAULT_CIPHER(PLAIN),
208 .hash = opt_hash ?: DEFAULT_PLAIN_HASH,
209 .key_file = opt_key_file,
210 .key_size = (opt_key_size ?: DEFAULT_PLAIN_KEYBITS) / 8,
211 .key_slot = opt_key_slot,
212 .flags = 0,
213 .size = opt_size,
214 .offset = opt_offset,
215 .skip = opt_skip,
216 .timeout = opt_timeout,
217 .tries = opt_tries,
218 .icb = &cmd_icb,
219 };
220 int r;
221
222 if(reload)
223 log_err(_("The reload action is deprecated. Please use \"dmsetup reload\" in case you really need this functionality.\nWARNING: do not use reload to touch LUKS devices. If that is the case, hit Ctrl-C now.\n"));
224
225 if (options.hash && strcmp(options.hash, "plain") == 0)
226 options.hash = NULL;
227 if (opt_verify_passphrase)
228 options.flags |= CRYPT_FLAG_VERIFY;
229 if (opt_readonly)
230 options.flags |= CRYPT_FLAG_READONLY;
231
232 if (reload)
233 r = crypt_update_device(&options);
234 else
235 r = crypt_create_device(&options);
236
237 return r;
238 }
239
action_remove(int arg)240 static int action_remove(int arg)
241 {
242 struct crypt_options options = {
243 .name = action_argv[0],
244 .icb = &cmd_icb,
245 };
246
247 return crypt_remove_device(&options);
248 }
249
action_resize(int arg)250 static int action_resize(int arg)
251 {
252 struct crypt_options options = {
253 .name = action_argv[0],
254 .size = opt_size,
255 .icb = &cmd_icb,
256 };
257
258 return crypt_resize_device(&options);
259 }
260
action_status(int arg)261 static int action_status(int arg)
262 {
263 struct crypt_options options = {
264 .name = action_argv[0],
265 .icb = &cmd_icb,
266 };
267 int r;
268
269 r = crypt_query_device(&options);
270 if (r < 0)
271 return r;
272
273 if (r == 0) {
274 /* inactive */
275 log_std("%s/%s is inactive.\n", crypt_get_dir(), options.name);
276 r = 1;
277 } else {
278 /* active */
279 log_std("%s/%s is active:\n", crypt_get_dir(), options.name);
280 log_std(" cipher: %s\n", options.cipher);
281 log_std(" keysize: %d bits\n", options.key_size * 8);
282 log_std(" device: %s\n", options.device ?: "");
283 log_std(" offset: %" PRIu64 " sectors\n", options.offset);
284 log_std(" size: %" PRIu64 " sectors\n", options.size);
285 if (options.skip)
286 log_std(" skipped: %" PRIu64 " sectors\n", options.skip);
287 log_std(" mode: %s\n", (options.flags & CRYPT_FLAG_READONLY)
288 ? "readonly" : "read/write");
289 crypt_put_options(&options);
290 r = 0;
291 }
292 return r;
293 }
294
_action_luksFormat_generateMK()295 static int _action_luksFormat_generateMK()
296 {
297 struct crypt_options options = {
298 .key_size = (opt_key_size ?: DEFAULT_LUKS1_KEYBITS) / 8,
299 .key_slot = opt_key_slot,
300 .device = action_argv[0],
301 .cipher = opt_cipher ?: DEFAULT_CIPHER(LUKS1),
302 .hash = opt_hash ?: DEFAULT_LUKS1_HASH,
303 .new_key_file = opt_key_file ?: (action_argc > 1 ? action_argv[1] : NULL),
304 .flags = opt_verify_passphrase ? CRYPT_FLAG_VERIFY : (!opt_batch_mode?CRYPT_FLAG_VERIFY_IF_POSSIBLE : 0),
305 .iteration_time = opt_iteration_time,
306 .timeout = opt_timeout,
307 .align_payload = opt_align_payload,
308 .icb = &cmd_icb,
309 };
310
311 return crypt_luksFormat(&options);
312 }
313
_read_mk(const char * file,char ** key,int keysize)314 static int _read_mk(const char *file, char **key, int keysize)
315 {
316 int fd;
317
318 *key = malloc(keysize);
319 if (!*key)
320 return -ENOMEM;
321
322 fd = open(file, O_RDONLY);
323 if (fd == -1) {
324 log_err("Cannot read keyfile %s.\n", file);
325 return -EINVAL;
326 }
327 if ((read(fd, *key, keysize) != keysize)) {
328 log_err("Cannot read %d bytes from keyfile %s.\n", keysize, file);
329 close(fd);
330 memset(*key, 0, keysize);
331 free(*key);
332 return -EINVAL;
333 }
334 close(fd);
335 return 0;
336 }
337
_action_luksFormat_useMK()338 static int _action_luksFormat_useMK()
339 {
340 int r = -EINVAL, keysize;
341 char *key = NULL, cipher [MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN];
342 struct crypt_device *cd = NULL;
343 struct crypt_params_luks1 params = {
344 .hash = opt_hash ?: DEFAULT_LUKS1_HASH,
345 .data_alignment = opt_align_payload,
346 };
347
348 if (sscanf(opt_cipher ?: DEFAULT_CIPHER(LUKS1),
349 "%" MAX_CIPHER_LEN_STR "[^-]-%" MAX_CIPHER_LEN_STR "s",
350 cipher, cipher_mode) != 2) {
351 log_err("No known cipher specification pattern detected.\n");
352 return -EINVAL;
353 }
354
355 keysize = (opt_key_size ?: DEFAULT_LUKS1_KEYBITS) / 8;
356 if (_read_mk(opt_master_key_file, &key, keysize) < 0)
357 return -EINVAL;
358
359 if ((r = crypt_init(&cd, action_argv[0])))
360 goto out;
361
362 crypt_set_password_verify(cd, 1);
363 crypt_set_timeout(cd, opt_timeout);
364 if (opt_iteration_time)
365 crypt_set_iterarion_time(cd, opt_iteration_time);
366
367 if ((r = crypt_format(cd, CRYPT_LUKS1, cipher, cipher_mode, NULL, key, keysize, ¶ms)))
368 goto out;
369
370 r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot, key, keysize, NULL, 0);
371 out:
372
373 crypt_free(cd);
374 if (key) {
375 memset(key, 0, keysize);
376 free(key);
377 }
378 return r;
379 }
380
action_luksFormat(int arg)381 static int action_luksFormat(int arg)
382 {
383 int r = 0; char *msg = NULL;
384
385 /* Avoid overwriting possibly wrong part of device than user requested by rejecting these options */
386 if (opt_offset || opt_skip) {
387 log_err("Options --offset and --skip are not supported for luksFormat.\n");
388 return -EINVAL;
389 }
390
391 if (action_argc > 1 && opt_key_file)
392 log_err(_("Option --key-file takes precedence over specified key file argument.\n"));
393
394 if(asprintf(&msg, _("This will overwrite data on %s irrevocably."), action_argv[0]) == -1) {
395 log_err(_("memory allocation error in action_luksFormat"));
396 return -ENOMEM;
397 }
398 r = yesDialog(msg);
399 free(msg);
400
401 if (!r)
402 return -EINVAL;
403
404 if (opt_master_key_file)
405 return _action_luksFormat_useMK();
406 else
407 return _action_luksFormat_generateMK();
408 }
409
action_luksOpen(int arg)410 static int action_luksOpen(int arg)
411 {
412 struct crypt_options options = {
413 .name = action_argv[1],
414 .device = action_argv[0],
415 .key_file = opt_key_file,
416 .key_size = opt_key_file ? (opt_key_size / 8) : 0, /* limit bytes read from keyfile */
417 .timeout = opt_timeout,
418 .tries = opt_key_file ? 1 : opt_tries, /* verify is usefull only for tty */
419 .icb = &cmd_icb,
420 };
421
422 if (opt_readonly)
423 options.flags |= CRYPT_FLAG_READONLY;
424 if (opt_non_exclusive)
425 log_err(_("Obsolete option --non-exclusive is ignored.\n"));
426
427 return crypt_luksOpen(&options);
428 }
429
action_luksDelKey(int arg)430 static int action_luksDelKey(int arg)
431 {
432 log_err("luksDelKey is a deprecated action name.\nPlease use luksKillSlot.\n");
433 return action_luksKillSlot(arg);
434 }
435
action_luksKillSlot(int arg)436 static int action_luksKillSlot(int arg)
437 {
438 struct crypt_options options = {
439 .device = action_argv[0],
440 .key_slot = atoi(action_argv[1]),
441 .key_file = opt_key_file,
442 .timeout = opt_timeout,
443 .flags = !opt_batch_mode?CRYPT_FLAG_VERIFY_ON_DELKEY : 0,
444 .icb = &cmd_icb,
445 };
446
447 return crypt_luksKillSlot(&options);
448 }
449
action_luksRemoveKey(int arg)450 static int action_luksRemoveKey(int arg)
451 {
452 struct crypt_options options = {
453 .device = action_argv[0],
454 .new_key_file = action_argc>1?action_argv[1]:NULL,
455 .key_file = opt_key_file,
456 .timeout = opt_timeout,
457 .flags = !opt_batch_mode?CRYPT_FLAG_VERIFY_ON_DELKEY : 0,
458 .icb = &cmd_icb,
459 };
460
461 return crypt_luksRemoveKey(&options);
462 }
463
_action_luksAddKey_useMK()464 static int _action_luksAddKey_useMK()
465 {
466 int r = -EINVAL, keysize = 0;
467 char *key = NULL;
468 struct crypt_device *cd = NULL;
469
470 if ((r = crypt_init(&cd, action_argv[0])))
471 goto out;
472
473 if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
474 goto out;
475
476 keysize = crypt_get_volume_key_size(cd);
477 crypt_set_password_verify(cd, 1);
478 crypt_set_timeout(cd, opt_timeout);
479 if (opt_iteration_time)
480 crypt_set_iterarion_time(cd, opt_iteration_time);
481
482 if (_read_mk(opt_master_key_file, &key, keysize) < 0)
483 goto out;
484
485 r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot, key, keysize, NULL, 0);
486 out:
487 crypt_free(cd);
488 if (key) {
489 memset(key, 0, keysize);
490 free(key);
491 }
492 return r;
493 }
494
action_luksAddKey(int arg)495 static int action_luksAddKey(int arg)
496 {
497 struct crypt_options options = {
498 .device = action_argv[0],
499 .new_key_file = action_argc>1?action_argv[1]:NULL,
500 .key_file = opt_key_file,
501 .key_slot = opt_key_slot,
502 .flags = opt_verify_passphrase ? CRYPT_FLAG_VERIFY : (!opt_batch_mode?CRYPT_FLAG_VERIFY_IF_POSSIBLE : 0),
503 .iteration_time = opt_iteration_time,
504 .timeout = opt_timeout,
505 .icb = &cmd_icb,
506 };
507
508 if (opt_master_key_file)
509 return _action_luksAddKey_useMK();
510 else
511 return crypt_luksAddKey(&options);
512 }
513
action_isLuks(int arg)514 static int action_isLuks(int arg)
515 {
516 struct crypt_options options = {
517 .device = action_argv[0],
518 .icb = &cmd_icb,
519 };
520
521 return crypt_isLuks(&options);
522 }
523
action_luksUUID(int arg)524 static int action_luksUUID(int arg)
525 {
526 struct crypt_options options = {
527 .device = action_argv[0],
528 .icb = &cmd_icb,
529 };
530
531 return crypt_luksUUID(&options);
532 }
533
action_luksDump(int arg)534 static int action_luksDump(int arg)
535 {
536 struct crypt_options options = {
537 .device = action_argv[0],
538 .icb = &cmd_icb,
539 };
540
541 return crypt_luksDump(&options);
542 }
543
action_luksSuspend(int arg)544 static int action_luksSuspend(int arg)
545 {
546 struct crypt_device *cd = NULL;
547 int r;
548
549 r = crypt_init_by_name(&cd, action_argv[0]);
550 if (!r)
551 r = crypt_suspend(cd, action_argv[0]);
552
553 crypt_free(cd);
554 return r;
555 }
556
action_luksResume(int arg)557 static int action_luksResume(int arg)
558 {
559 struct crypt_device *cd = NULL;
560 int r;
561
562 if ((r = crypt_init_by_name(&cd, action_argv[0])))
563 goto out;
564
565 if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
566 goto out;
567
568 if (opt_key_file)
569 r = crypt_resume_by_keyfile(cd, action_argv[0], CRYPT_ANY_SLOT,
570 opt_key_file, opt_key_size / 8);
571 else
572 r = crypt_resume_by_passphrase(cd, action_argv[0], CRYPT_ANY_SLOT,
573 NULL, 0);
574 out:
575 crypt_free(cd);
576 return r;
577 }
578
action_luksBackup(int arg)579 static int action_luksBackup(int arg)
580 {
581 struct crypt_device *cd = NULL;
582 int r;
583
584 if (!opt_header_backup_file) {
585 log_err(_("Option --header-backup-file is required.\n"));
586 return -EINVAL;
587 }
588
589 if ((r = crypt_init(&cd, action_argv[0])))
590 goto out;
591
592 crypt_set_log_callback(cd, _log, NULL);
593 crypt_set_confirm_callback(cd, _yesDialog, NULL);
594
595 r = crypt_header_backup(cd, CRYPT_LUKS1, opt_header_backup_file);
596 out:
597 crypt_free(cd);
598 return r;
599 }
600
action_luksRestore(int arg)601 static int action_luksRestore(int arg)
602 {
603 struct crypt_device *cd = NULL;
604 int r = 0;
605
606 if (!opt_header_backup_file) {
607 log_err(_("Option --header-backup-file is required.\n"));
608 return -EINVAL;
609 }
610
611 if ((r = crypt_init(&cd, action_argv[0])))
612 goto out;
613
614 crypt_set_log_callback(cd, _log, NULL);
615 crypt_set_confirm_callback(cd, _yesDialog, NULL);
616 r = crypt_header_restore(cd, CRYPT_LUKS1, opt_header_backup_file);
617 out:
618 crypt_free(cd);
619 return r;
620 }
621
usage(const char * msg)622 static void usage(const char *msg)
623 {
624 log_err("Usage: cryptsetup [-?vyrq] [-?|--help] [--usage] [-v|--verbose]\n"
625 " [--debug] [-c|--cipher=STRING] [-h|--hash=STRING]\n"
626 " [-y|--verify-passphrase] [-d|--key-file=STRING]\n"
627 " [--master-key-file=STRING] [-s|--key-size=BITS] [-S|--key-slot=INT]\n"
628 " [-b|--size=SECTORS] [-o|--offset=SECTORS] [-p|--skip=SECTORS]\n"
629 " [-r|--readonly] [-i|--iter-time=msecs] [-q|--batch-mode] [--version]\n"
630 " [-t|--timeout=secs] [-T|--tries=INT] [--align-payload=SECTORS]\n"
631 " [--non-exclusive] [--header-backup-file=STRING] [OPTION...]\n"
632 " <action> <action-specific>]\n");
633
634 if (msg)
635 log_err("%s\n", msg);
636
637 exit(1);
638 }
639
help()640 static void help()
641 {
642 struct action_type *action;
643
644 log_std("%s\n",PACKAGE_STRING);
645 log_std("Usage: cryptsetup [OPTION...] <action> <action-specific>]\n"
646 " -v, --verbose Shows more detailed error messages\n"
647 " --debug Show debug messages\n"
648 " -c, --cipher=STRING The cipher used to encrypt the disk (see /proc/crypto)\n"
649 " -h, --hash=STRING The hash used to create the encryption key from the passphrase\n"
650 " -y, --verify-passphrase Verifies the passphrase by asking for it twice\n"
651 " -d, --key-file=STRING Read the key from a file (can be /dev/random)\n"
652 " --master-key-file=STRING Read the volume (master) key from file.\n"
653 " -s, --key-size=BITS The size of the encryption key\n"
654 " -S, --key-slot=INT Slot number for new key (default is first free)\n"
655 " -b, --size=SECTORS The size of the device\n"
656 " -o, --offset=SECTORS The start offset in the backend device\n"
657 " -p, --skip=SECTORS How many sectors of the encrypted data to skip at the beginning\n"
658 " -r, --readonly Create a readonly mapping\n"
659 " -i, --iter-time=msecs PBKDF2 iteration time for LUKS (in ms)\n"
660 " -q, --batch-mode Do not ask for confirmation\n"
661 " --version Print package version\n"
662 " -t, --timeout=secs Timeout for interactive passphrase prompt (in seconds)\n"
663 " -T, --tries=INT How often the input of the passphrase can be retried\n"
664 " --align-payload=SECTORS Align payload at <n> sector boundaries - for luksFormat\n"
665 " --non-exclusive (Obsoleted, see man page.)\n"
666 " --header-backup-file=STRING File with LUKS header and keyslots backup.\n"
667 "\n"
668 "Help options:\n"
669 " -?, --help Show this help message\n"
670 " --usage Display brief usage\n" );
671
672 log_std(_("\n"
673 "<action> is one of:\n"));
674
675 for(action = action_types; action->type; action++)
676 log_std("\t%s %s - %s\n", action->type, _(action->arg_desc), _(action->desc));
677
678 log_std(_("\n"
679 "<name> is the device to create under %s\n"
680 "<device> is the encrypted device\n"
681 "<key slot> is the LUKS key slot number to modify\n"
682 "<key file> optional key file for the new key for luksAddKey action\n"),
683 crypt_get_dir());
684
685 log_std(_("\nDefault compiled-in device cipher parameters:\n"
686 "\tplain: %s, Key: %d bits, Password hashing: %s\n"
687 "\tLUKS1: %s, Key: %d bits, LUKS header hashing: %s\n"),
688 DEFAULT_CIPHER(PLAIN), DEFAULT_PLAIN_KEYBITS, DEFAULT_PLAIN_HASH,
689 DEFAULT_CIPHER(LUKS1), DEFAULT_LUKS1_KEYBITS, DEFAULT_LUKS1_HASH);
690 exit(0);
691
692 }
693
694 void set_debug_level(int level);
695
_dbg_version_and_cmd(int argc,char ** argv)696 static void _dbg_version_and_cmd(int argc, char **argv)
697 {
698 int i;
699
700 log_std("# %s %s processing \"", PACKAGE_NAME, PACKAGE_VERSION);
701 for (i = 0; i < argc; i++) {
702 if (i)
703 log_std(" ");
704 log_std(argv[i]);
705 }
706 log_std("\"\n");
707 }
708
run_action(struct action_type * action)709 static int run_action(struct action_type *action)
710 {
711 int r;
712
713 if (action->required_memlock)
714 crypt_memory_lock(NULL, 1);
715
716 r = action->handler(action->arg);
717
718 if (action->required_memlock)
719 crypt_memory_lock(NULL, 0);
720
721 show_status(r);
722
723 return r;
724 }
725
main(int argc,char ** argv)726 int main(int argc, char **argv)
727 {
728 static struct option options[] = {
729 { "help", no_argument, NULL, '?' },
730 { "usage", no_argument, NULL, 'u' },
731 { "verbose", no_argument, NULL, 'v' },
732 { "debug", no_argument, &opt_debug, 1 },
733 { "cipher", required_argument, NULL, 'c' },
734 { "hash", required_argument, NULL, 'h' },
735 { "verify-passphrase", no_argument, NULL, 'y' },
736 { "key-file", required_argument, NULL, 'd' },
737 { "master-key-file", required_argument, NULL, 'm' },
738 { "key-size", required_argument, NULL, 's' },
739 { "key-slot", required_argument, NULL, 'S' },
740 { "size", required_argument, NULL, 'b' },
741 { "offset", required_argument, NULL, 'o' },
742 { "skip", required_argument, NULL, 'p' },
743 { "readonly", no_argument, NULL, 'r' },
744 { "iter-time", required_argument, NULL, 'i' },
745 { "batch-mode", no_argument, NULL, 'q' },
746 { "version", no_argument, &opt_version_mode, 1 },
747 { "timeout", required_argument, NULL, 't' },
748 { "tries", required_argument, NULL, 'T' },
749 { "align-payload", required_argument, NULL, 'a' },
750 { "header-backup-file",required_argument, NULL, 'x' },
751 { NULL, 0, NULL, 0 }
752 };
753 struct action_type *action;
754 char *aname;
755 int r;
756 const char *null_action_argv[] = {NULL};
757
758 crypt_set_log_callback(NULL, _log, NULL);
759
760 setlocale(LC_ALL, "");
761 bindtextdomain(PACKAGE, LOCALEDIR);
762 textdomain(PACKAGE);
763
764 while((r = getopt_long(argc, argv, "?vc:h:yd:m:s:S:b:o:p:ri:qt:T:", options, NULL)) != -1)
765 {
766 switch (r) {
767 case 'u':
768 usage(NULL);
769 break;
770 case 'v':
771 opt_verbose = 1;
772 break;
773 case 'c':
774 opt_cipher = optarg;
775 break;
776 case 'h':
777 opt_hash = optarg;
778 break;
779 case 'y':
780 opt_verify_passphrase = 1;
781 break;
782 case 'd':
783 opt_key_file = optarg;
784 break;
785 case 'm':
786 opt_master_key_file = optarg;
787 break;
788 case 's':
789 opt_key_size = atoi(optarg);
790 break;
791 case 'S':
792 opt_key_slot = atoi(optarg);
793 break;
794 case 'b':
795 opt_size = strtoull(optarg, NULL, 0);
796 break;
797 case 'o':
798 opt_offset = strtoull(optarg, NULL, 0);
799 break;
800 case 'p':
801 opt_skip = strtoull(optarg, NULL, 0);
802 break;
803 case 'r':
804 opt_readonly = 1;
805 break;
806 case 'i':
807 opt_iteration_time = atoi(optarg);
808 break;
809 case 'q':
810 opt_batch_mode = 1;
811 break;
812 case 't':
813 opt_timeout = atoi(optarg);
814 break;
815 case 'T':
816 opt_tries = atoi(optarg);
817 break;
818 case 'a':
819 opt_align_payload = atoi(optarg);
820 break;
821 case 'x':
822 opt_header_backup_file = optarg;
823 break;
824 case '?':
825 help();
826 break;
827 case 0:
828 if (opt_version_mode) {
829 log_std("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
830 exit(0);
831 }
832 break;
833 }
834 }
835
836 if (opt_key_size % 8)
837 usage(_("Key size must be a multiple of 8 bits"));
838
839 argc -= optind;
840 argv += optind;
841
842 if (argc == 0) {
843 usage(_("Argument <action> missing."));
844 /* NOTREACHED */
845 }
846
847 aname = argv[0];
848 for(action = action_types; action->type; action++)
849 if (strcmp(action->type, aname) == 0)
850 break;
851 if (!action->type) {
852 usage( _("Unknown action."));
853 /* NOTREACHED */
854 }
855
856 action_argc = argc-1;
857 action_argv = (void *)&argv[1];
858
859 if(action_argc < action->required_action_argc) {
860 char buf[128];
861 snprintf(buf, 128,_("%s: requires %s as arguments"), action->type, action->arg_desc);
862 usage(buf);
863 /* NOTREACHED */
864 }
865
866 if (opt_debug) {
867 opt_verbose = 1;
868 crypt_set_debug_level(-1);
869 _dbg_version_and_cmd(argc, argv);
870 }
871
872 return run_action(action);
873 }
874