2 * tfcrypt -- high security Threefish encryption tool.
4 * tfcrypt is copyrighted:
5 * Copyright (C) 2012-2019 Andrey Rys. All rights reserved.
7 * tfcrypt is licensed to you under the terms of std. MIT/X11 license:
9 * Permission is hereby granted, free of charge, to any person obtaining
10 * a copy of this software and associated documentation files (the
11 * "Software"), to deal in the Software without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
24 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 static tfc_byte svctr[TF_BLOCK_SIZE];
32 static tfc_fsize rwd, do_read_loops, loopcnt;
34 static void open_log(const char *logfile)
38 if (!strcmp(logfile, "-")) return;
40 fd = open(logfile, O_WRONLY | O_CREAT | O_LARGEFILE | O_TRUNC, 0666);
41 if (fd == -1) xerror(NO, NO, YES, "%s", logfile);
43 if (dup2(fd, 2) == -1) xexit(2);
45 do_statline_dynamic = NO;
48 static int getps_filter(struct getpasswd_state *getps, char chr, size_t pos)
51 getps->retn = ((size_t)-2);
57 static int getps_hex_filter(struct getpasswd_state *getps, char chr, size_t pos)
60 getps->retn = ((size_t)-2);
63 if (chr >= '0' && chr <= '9') return 1;
64 if (chr >= 'a' && chr <= 'f') return 1;
65 if (chr >= 'A' && chr <= 'F') return 1;
66 if (chr == '\x7f' || chr == '\x08'
67 || chr == '\x15' || chr == '\x17') return 1;
71 static inline int isctrlchr(int c)
74 if (c >= 0 && c <= 31) return 1;
75 if (c == 127) return 1;
79 static int getps_plain_filter(struct getpasswd_state *getps, char chr, size_t pos)
83 x = getps_filter(getps, chr, pos);
86 if (pos < getps->pwlen && !isctrlchr(chr))
87 write(getps->efd, &chr, sizeof(char));
91 static int getps_plain_hex_filter(struct getpasswd_state *getps, char chr, size_t pos)
95 x = getps_hex_filter(getps, chr, pos);
98 if (pos < getps->pwlen && !isctrlchr(chr))
99 write(getps->efd, &chr, sizeof(char));
103 static void make_hint(void *hint, size_t szhint, const void *data, size_t szdata)
105 char t[TF_FROM_BITS(TF_MAX_BITS)];
107 skein(t, TF_MAX_BITS, NULL, data, szdata);
108 xor_shrink(hint, szhint, t, sizeof(t));
109 memset(t, 0, sizeof(t));
112 static void raw_say_hint(void *hint, size_t szhint, const void *data, size_t szdata, const char *prompt)
114 make_hint(hint, szhint, data, szdata);
115 if (prompt) tfc_nfsay(stderr, "%s: ", prompt);
116 mehexdump(hint, szhint, szhint, 1);
117 memset(hint, 0, szhint);
120 static void say_hint(const void *data, size_t szdata, const char *prompt)
122 char t[TF_SIZE_UNIT];
123 raw_say_hint(t, TF_SIZE_UNIT, data, szdata, prompt);
124 /* t[] is erased (automatically) */
127 int main(int argc, char **argv)
131 char *s, *d, *t, *stoi;
135 progname = basename(argv[0]);
137 if (!isatty(2)) do_statline_dynamic = NO;
142 n = PATH_MAX > sizeof(srcblk) ? sizeof(srcblk) : PATH_MAX;
143 if (xstrlcpy(s, d, n) >= n) goto _baddfname;
144 if (xstrlcat(s, "/.tfcrypt.defs", n) >= n) goto _baddfname;
145 read_defaults(s, YES);
149 if (!strcmp(progname, "iotool")) {
150 do_edcrypt = TFC_DO_PLAIN;
152 ctr_mode = TFC_MODE_PLAIN;
156 while ((c = getopt(argc, argv, "L:s:aU:C:r:K:t:Pkzxc:l:qedn:vV:pwE:o:O:S:AmuM:R:Z:WHD:")) != -1) {
159 read_defaults(optarg, NO);
168 if (!strcasecmp(optarg, "show"))
169 counter_opt = TFC_CTR_SHOW;
170 else if (!strcasecmp(optarg, "head"))
171 counter_opt = TFC_CTR_HEAD;
172 else if (!strcasecmp(optarg, "rand"))
173 counter_opt = TFC_CTR_RAND;
174 else if (!strcasecmp(optarg, "zero"))
175 counter_opt = TFC_CTR_ZERO;
176 else if (strchr(optarg, ':')) {
179 counter_opt = TFC_CTR_SSET;
182 s = d = optarg; t = NULL;
183 while ((s = strtok_r(d, ",", &t))) {
190 chr = (char)strtoul(s, &stoi, 16);
191 if (!str_empty(stoi)) continue;
192 x = (size_t)strtoul(ss, &stoi, 10);
193 if (!str_empty(stoi)) continue;
195 memset(ctr+(sizeof(ctr)-n), (int)chr, x);
199 else counter_file = sksum_hashlist_file = optarg;
202 if (!strcasecmp(optarg, "ctr"))
203 ctr_mode = TFC_MODE_CTR;
204 else if (!strcasecmp(optarg, "stream"))
205 ctr_mode = TFC_MODE_STREAM;
206 else if (!strcasecmp(optarg, "cbc"))
207 ctr_mode = TFC_MODE_CBC;
208 else if (!strcasecmp(optarg, "ecb"))
209 ctr_mode = TFC_MODE_ECB;
210 else if (!strcasecmp(optarg, "xts"))
211 ctr_mode = TFC_MODE_XTS;
212 else if (!strcasecmp(optarg, "ocb"))
213 ctr_mode = TFC_MODE_OCB;
214 else xerror(NO, YES, YES, "%s: invalid mode of operation", optarg);
217 do_edcrypt = TFC_DO_PLAIN;
219 ctr_mode = TFC_MODE_PLAIN;
222 if (do_edcrypt != TFC_DO_PLAIN) do_edcrypt = TFC_DO_ENCRYPT;
225 if (do_edcrypt != TFC_DO_PLAIN) do_edcrypt = TFC_DO_DECRYPT;
228 macbits = strtoul(optarg, &stoi, 10);
229 if (macbits == 0 || !str_empty(stoi) || macbits < 8
230 || macbits > TF_MAX_BITS || macbits % 8)
231 xerror(NO, YES, YES, "%s: invalid MAC bits setting", optarg);
234 nr_turns = sksum_turns = strtoul(optarg, &stoi, 10);
235 if (!str_empty(stoi)) xerror(NO, YES, YES, "%s: invalid number of turns", optarg);
238 if (!strcasecmp(optarg, "key"))
239 mackey_opt = TFC_MACKEY_RAWKEY;
240 else if (!strcasecmp(optarg, "pwd"))
241 mackey_opt = TFC_MACKEY_PASSWORD;
243 mackey_opt = TFC_MACKEY_FILE;
251 rawkey = TFC_RAWKEY_KEYFILE;
254 rawkey = TFC_RAWKEY_ASKSTR;
257 rawkey = TFC_RAWKEY_ASKHEX;
268 if (maxlen != NOFSIZE) break;
270 maxlen = tfc_humanfsize(optarg, &stoi);
271 if (!str_empty(stoi)) {
272 maxlen = tfc_fnamesize(optarg, YES);
273 maxlen = tfc_modifysize(maxlen, strchr(optarg, ':'));
274 if (maxlen == NOFSIZE) xerror(NO, YES, YES,
275 "%s: invalid count value", optarg);
277 else maxlen = tfc_modifysize(maxlen, strchr(optarg, ':'));
278 if (counter_opt == TFC_CTR_HEAD)
279 maxlen += TF_BLOCK_SIZE;
282 overwrite_source = YES;
285 if (!strcmp(optarg, "xall")) {
286 catch_all_errors = YES;
289 if (!strcmp(optarg, "xseek")) {
290 ignore_seek_errors = YES;
293 if (!strcmp(optarg, "exit"))
294 error_action = TFC_ERRACT_EXIT;
295 else if (!strncmp(optarg, "cont", 4))
296 error_action = TFC_ERRACT_CONT;
297 else if (!strcmp(optarg, "sync"))
298 error_action = TFC_ERRACT_SYNC;
299 else if (!strcmp(optarg, "lsync"))
300 error_action = TFC_ERRACT_LSYNC;
301 else xerror(NO, YES, YES, "invalid error action %s specified", optarg);
307 s = d = optarg; t = NULL;
308 while ((s = strtok_r(d, ",", &t))) {
310 if (!strcmp(s, "sync"))
311 write_flags |= O_SYNC;
312 else if (!strcmp(s, "trunc"))
313 write_flags |= O_TRUNC;
314 else if (!strcmp(s, "fsync"))
316 else if (!strcmp(s, "pad"))
318 else if (!strcmp(s, "xtime"))
319 do_preserve_time = YES;
320 else if (!strcmp(s, "gibsize"))
321 do_stats_in_gibs = YES;
322 else if (!strcmp(s, "plainstats"))
323 do_statline_dynamic = NO;
324 else if (!strcmp(s, "statless"))
326 else if (!strcmp(s, "norepeat"))
328 else if (!strncmp(s, "prompt", 6) && *(s+6) == '=')
330 else if (!strncmp(s, "macprompt", 9) && *(s+9) == '=')
331 mac_pw_prompt = s+10;
332 else if (!strcmp(s, "shorthex"))
333 do_full_hexdump = NO;
334 else if (!strcmp(s, "fullkey"))
336 else if (!strcmp(s, "showsecrets"))
338 else if (!strcmp(s, "finished"))
339 show_when_done = YES;
340 else if (!strcmp(s, "pid"))
342 else if (!strncmp(s, "readloops", 9) && *(s+9) == '=') {
343 do_read_loops = tfc_humanfsize(s+10, &stoi);
344 if (!str_empty(stoi)) do_read_loops = NOSIZE;
346 else if (!strncmp(s, "logfile", 7) && *(s+7) == '=')
348 else if (!strncmp(s, "iobs", 4) && *(s+4) == '=') {
350 blksize = (size_t)tfc_humanfsize(s, &stoi);
351 if (!str_empty(stoi)) {
352 blksize = (size_t)tfc_fnamesize(s, YES);
353 blksize = (size_t)tfc_modifysize((tfc_fsize)blksize, strchr(s, ':'));
354 if (blksize == NOSIZE) xerror(NO, YES, YES,
355 "%s: invalid block size value", s);
357 else blksize = (size_t)tfc_modifysize((tfc_fsize)blksize, strchr(s, ':'));
358 if (blksize < TF_BLOCK_SIZE) xerror(NO, YES, YES,
359 "%s: block size is lesser than TF_BLOCK_SIZE (%u bytes)", s, TFC_U(TF_BLOCK_SIZE));
360 if (blksize > TFC_BLKSIZE) xerror(NO, YES, YES,
361 "%s: block size exceeds %u bytes",
362 s, TFC_U(TFC_BLKSIZE));
364 else if (!strncmp(s, "xtsblocks", 9) && *(s+9) == '=') {
366 xtsblocks = (size_t)tfc_humanfsize(s, &stoi);
367 if (!str_empty(stoi)) {
368 xtsblocks = (size_t)tfc_fnamesize(s, YES);
369 xtsblocks = (size_t)tfc_modifysize((tfc_fsize)xtsblocks, strchr(s, ':'));
370 if (xtsblocks == NOSIZE) xerror(NO, YES, YES,
371 "%s: invalid blocks per xts block value", s);
373 else xtsblocks = (size_t)tfc_modifysize((tfc_fsize)xtsblocks, strchr(s, ':'));
374 if (TFC_BLKSIZE % xtsblocks) xerror(NO, YES, YES,
375 "%s: nr of blocks per xts block is not round to %u bytes",
376 s, TFC_U(TFC_BLKSIZE));
377 if ((xtsblocks * TF_BLOCK_SIZE) > TFC_BLKSIZE) xerror(NO, YES, YES,
378 "%s: nr of blocks per xts block exceeds %u bytes",
379 s, TFC_U(TFC_BLKSIZE));
381 else if (!strncmp(s, "iseek", 5) && *(s+5) == '=') {
383 iseek = tfc_humanfsize(s, &stoi);
384 if (!str_empty(stoi)) {
385 iseek = tfc_fnamesize(s, YES);
386 iseek = tfc_modifysize(iseek, strchr(s, ':'));
387 if (iseek == NOFSIZE) xerror(NO, YES, YES,
388 "%s: invalid iseek value", s);
390 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
391 if (ctr_mode != TFC_MODE_PLAIN && iseek % TF_BLOCK_SIZE)
393 "%s: not round to TF block size "
395 s, TFC_U(TF_BLOCK_SIZE));
396 iseek_blocks = iseek / TF_BLOCK_SIZE;
398 else if (!strncmp(s, "ixseek", 6) && *(s+6) == '=') {
400 iseek = tfc_humanfsize(s, &stoi);
401 if (!str_empty(stoi)) {
402 iseek = tfc_fnamesize(s, YES);
403 iseek = tfc_modifysize(iseek, strchr(s, ':'));
404 if (iseek == NOFSIZE) xerror(NO, YES, YES,
405 "%s: invalid ixseek value", s);
407 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
409 else if (!strncmp(s, "ictr", 4) && *(s+4) == '=') {
411 iseek_blocks = tfc_humanfsize(s, &stoi);
412 if (!str_empty(stoi)) {
413 iseek_blocks = tfc_fnamesize(s, YES);
414 if (iseek_blocks == NOFSIZE)
416 "%s: invalid ictr value", s);
417 iseek_blocks /= TF_BLOCK_SIZE;
418 iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
420 else iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
422 else if (!strncmp(s, "ixctr", 5) && *(s+5) == '=') {
424 iseek_blocks = tfc_humanfsize(s, &stoi);
425 if (!str_empty(stoi)) {
426 iseek_blocks = tfc_fnamesize(s, YES);
427 iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
428 if (iseek_blocks == NOFSIZE)
430 "%s: invalid ixctr value", s);
432 else iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
433 if (iseek_blocks % TF_BLOCK_SIZE)
435 "%s: not round to TF block size "
436 "of %u bytes", s, TFC_U(TF_BLOCK_SIZE));
437 iseek_blocks /= TF_BLOCK_SIZE;
439 else if (!strncmp(s, "oseek", 5) && *(s+5) == '=') {
441 oseek = tfc_humanfsize(s, &stoi);
442 if (!str_empty(stoi)) {
443 oseek = tfc_fnamesize(s, YES);
444 oseek = tfc_modifysize(oseek, strchr(s, ':'));
445 if (oseek == NOFSIZE) xerror(NO, YES, YES,
446 "%s: invalid oseek value", s);
448 else oseek = tfc_modifysize(oseek, strchr(s, ':'));
450 else if (!strncmp(s, "count", 5) && *(s+5) == '=') {
452 maxlen = tfc_humanfsize(s, &stoi);
453 if (!str_empty(stoi)) {
454 maxlen = tfc_fnamesize(s, YES);
455 maxlen = tfc_modifysize(maxlen, strchr(s, ':'));
456 if (maxlen == NOFSIZE) xerror(NO, YES, YES,
457 "%s: invalid count value", s);
459 else maxlen = tfc_modifysize(maxlen, strchr(s, ':'));
460 if (counter_opt == TFC_CTR_HEAD)
461 maxlen += TF_BLOCK_SIZE;
463 else if (!strncmp(s, "ftrunc", 6) && *(s+6) == '=') {
465 if (!strcmp(s, "tail")) {
466 do_ftrunc = TFC_FTRUNC_TAIL;
467 ftrunc_dfd = NOFSIZE;
470 do_ftrunc = TFC_DO_FTRUNC;
471 ftrunc_dfd = tfc_humanfsize(s, &stoi);
472 if (!str_empty(stoi)) {
473 ftrunc_dfd = tfc_fnamesize(s, YES);
474 ftrunc_dfd = tfc_modifysize(ftrunc_dfd, strchr(s, ':'));
475 if (ftrunc_dfd == NOFSIZE) xerror(NO, YES, YES,
476 "%s: invalid ftrunc value", s);
478 else ftrunc_dfd = tfc_modifysize(ftrunc_dfd, strchr(s, ':'));
481 else if (!strncmp(s, "xkey", 4) && *(s+4) == '=') {
483 maxkeylen = tfc_humanfsize(s, &stoi);
484 if (!str_empty(stoi)) {
485 maxkeylen = tfc_fnamesize(s, YES);
486 maxkeylen = tfc_modifysize(maxkeylen, strchr(s, ':'));
487 if (maxkeylen == NOSIZE)
489 "%s: invalid key length value", s);
491 else maxkeylen = tfc_modifysize(maxkeylen, strchr(s, ':'));
493 else if (!strncmp(s, "okey", 4) && *(s+4) == '=') {
495 keyoffset = tfc_humanfsize(s, &stoi);
496 if (!str_empty(stoi)) {
497 keyoffset = tfc_fnamesize(s, YES);
498 keyoffset = tfc_modifysize(keyoffset, strchr(s, ':'));
499 if (keyoffset == NOFSIZE)
501 "%s: invalid key offset value", s);
503 else keyoffset = tfc_modifysize(keyoffset, strchr(s, ':'));
505 else if (!strncmp(s, "xctr", 4) && *(s+4) == '=') {
507 ctrsz = tfc_humanfsize(s, &stoi);
508 if (!str_empty(stoi)) {
509 ctrsz = (size_t)tfc_fnamesize(s, YES);
510 ctrsz = (size_t)tfc_modifysize((tfc_fsize)ctrsz, strchr(s, ':'));
513 "%s: invalid counter length value", s);
515 else ctrsz = (size_t)tfc_modifysize((tfc_fsize)ctrsz, strchr(s, ':'));
516 if (ctrsz > TF_BLOCK_SIZE)
517 xerror(NO, YES, YES, "%s: counter size cannot exceed TF block size", s);
519 else xerror(NO, YES, YES, "invalid option %s", s);
523 do_mac = TFC_MAC_SIGN;
524 if (strcasecmp(optarg, "mac") != 0)
525 do_mac_file = optarg;
528 do_mac = TFC_MAC_VRFY;
529 if (!strcasecmp(optarg, "drop"))
530 do_mac = TFC_MAC_DROP;
531 else if (strcasecmp(optarg, "mac") != 0)
532 do_mac_file = optarg;
536 if (do_mac != TFC_MAC_VRFY)
537 xerror(NO, YES, YES, "signature source was not specified");
538 do_mac = TFC_MAC_JUST_VRFY;
539 if (c == 'u') do_mac = TFC_MAC_JUST_VRFY2;
543 if (maxlen != NOFSIZE) {
544 if (c == 'Z') genzero_nr_bytes = maxlen;
545 else genrandom_nr_bytes = maxlen;
549 if (!strcasecmp(optarg, "cbs"))
551 else if (!strcasecmp(optarg, "ks"))
552 t = TF_FROM_BITS(TFC_KEY_BITS);
553 else if (!strcasecmp(optarg, "xks"))
554 t = TF_FROM_BITS(TFC_KEY_BITS) * 2;
555 else if (!strcasecmp(optarg, "iobs"))
558 t = tfc_humanfsize(optarg, &stoi);
559 if (!str_empty(stoi)) {
560 t = tfc_fnamesize(optarg, NO);
561 t = tfc_modifysize(t, strchr(optarg, ':'));
563 else t = tfc_modifysize(t, strchr(optarg, ':'));
565 if (c == 'Z') genzero_nr_bytes = maxlen = t;
566 else genrandom_nr_bytes = maxlen = t;
570 do_preserve_time = YES;
573 do_outfmt = TFC_OUTFMT_B64;
576 do_outfmt = TFC_OUTFMT_RAW;
579 do_outfmt = TFC_OUTFMT_HEX;
585 do_full_hexdump = NO;
592 td = strtod(optarg, &stoi);
593 status_timer = TFC_DTOUSECS(td);
594 if (status_timer <= TFC_DTOUSECS(0) || !str_empty(stoi)) status_timer = 0;
602 if (!strcmp(progname, "tfbench")) {
603 if (!*(argv+optind)) usage();
605 td = strtod(*(argv+optind), &stoi);
606 if (td <= TFC_DTOUSECS(0) || !str_empty(stoi))
608 "%s: invalid benchmark time in seconds", *(argv+optind));
609 bench_timer = TFC_DTOUSECS(td);
610 do_benchmark(bench_timer, td);
612 if (genrandom_nr_bytes) {
613 ctr_mode = TFC_MODE_STREAM;
614 do_edcrypt = TFC_DO_ENCRYPT;
615 gen_write_bytes(*(argv+optind), oseek, genrandom_nr_bytes);
617 if (genzero_nr_bytes) {
618 ctr_mode = TFC_MODE_PLAIN;
619 do_edcrypt = TFC_DO_PLAIN;
620 gen_write_bytes(*(argv+optind), oseek, genzero_nr_bytes);
623 if (rawkey && password)
624 xerror(NO, YES, YES, "Cannot use rawkey and hashing password!");
625 if (do_edcrypt == TFC_DO_ENCRYPT && do_mac >= TFC_MAC_VRFY)
626 xerror(NO, YES, YES, "Cannot encrypt and verify signature!");
627 if (do_edcrypt == TFC_DO_DECRYPT && do_mac == TFC_MAC_SIGN)
628 xerror(NO, YES, YES, "Cannot decrypt and calculate signature!");
629 if (do_edcrypt == TFC_DO_DECRYPT && counter_opt == TFC_CTR_RAND)
630 xerror(NO, YES, YES, "Cannot decrypt and embed a generated CTR into file!");
631 if (do_edcrypt == TFC_DO_ENCRYPT && counter_opt == TFC_CTR_HEAD)
632 xerror(NO, YES, YES, "Cannot encrypt and read CTR from source!");
633 if (overwrite_source && counter_opt == TFC_CTR_RAND)
634 xerror(NO, YES, YES, "Cannot embed a CTR into file when overwriting it!");
635 if (ctr_mode == TFC_MODE_PLAIN
636 && (do_edcrypt || do_mac || rawkey
637 || mackey_opt || counter_opt || counter_file))
638 xerror(NO, YES, YES, "Encryption facility is disabled when in plain IO mode.");
646 memset(tfc_salt, 0, TFC_MAX_SALT);
648 if (!strcasecmp(saltf, "disable")) goto _nosalt;
650 if (!strcmp(saltf, "-")) saltfd = 0;
651 else saltfd = open(saltf, O_RDONLY | O_LARGEFILE);
652 if (saltfd == -1) xerror(NO, NO, YES, "%s", saltf);
653 lio = xread(saltfd, tfc_salt, TFC_MAX_SALT - TF_FROM_BITS(TFC_KEY_BITS));
654 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", saltf);
660 if (mackey_opt == TFC_MACKEY_FILE && mackeyf) {
664 if (!strcmp(mackeyf, "-")) mkfd = 0;
665 else mkfd = open(mackeyf, O_RDONLY | O_LARGEFILE);
666 if (mkfd == -1) xerror(NO, NO, YES, "%s", mackeyf);
668 skein_init(&sk, TFC_KEY_BITS);
675 lrem = lblock = sizeof(tmpdata);
676 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(mkfd);
677 _mkragain: lio = xread(mkfd, pblk, lrem);
678 if (lio == 0 && do_stop == NO) do_stop = YES;
679 if (lio != NOSIZE) ldone += lio;
681 if (errno != EIO && catch_all_errors != YES)
682 xerror(NO, NO, NO, "%s", mackeyf);
683 switch (error_action) {
684 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", mackeyf); goto _mkragain; break;
685 case TFC_ERRACT_SYNC:
686 case TFC_ERRACT_LSYNC:
687 xerror(YES, NO, NO, "%s", mackeyf);
688 lio = ldone = lrem = lblock;
689 memset(tmpdata, 0, lio);
690 if (rdpos == NOFSIZE) lseek(mkfd, lio, SEEK_CUR);
691 else lseek(mkfd, rdpos + lio, SEEK_SET);
693 default: xerror(NO, NO, NO, "%s", mackeyf); break;
696 if (lio && lio < lrem) {
702 skein_update(&sk, tmpdata, ldone);
705 skein_final(mackey, &sk);
709 else if (mackey_opt == TFC_MACKEY_PASSWORD) {
710 memset(&getps, 0, sizeof(struct getpasswd_state));
711 getps.fd = getps.efd = -1;
712 getps.passwd = pwdask;
713 getps.pwlen = sizeof(pwdask)-1;
714 getps.echo = mac_pw_prompt ? mac_pw_prompt : "Enter MAC password: ";
715 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
716 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
717 getps.flags = GETP_WAITFILL;
718 n = xgetpasswd(&getps);
719 if (n == NOSIZE) xerror(NO, NO, YES, "getting MAC password");
720 if (n == ((size_t)-2)) xexit(1);
721 if (verbose) say_hint(pwdask, n, "MAC password hint");
722 skein(mackey, TF_MAX_BITS, NULL, pwdask, n);
726 if ((strlen(progname) <= 9)
727 && ((!strcmp(progname, "sksum"))
728 || ((!memcmp(progname, "sk", 2))
729 && (!memcmp(progname+3, "sum", 3)
730 || !memcmp(progname+4, "sum", 3)
731 || !memcmp(progname+5, "sum", 3)
732 || !memcmp(progname+6, "sum", 3)))))
733 do_sksum(progname, argv+optind);
734 if (!strcmp(progname, "tfbase64")) do_edbase64(argv+optind);
739 if (password || rawkey > TFC_RAWKEY_KEYFILE) goto _nokeyfd;
740 if (!strcmp(argv[idx], "-")) kfd = 0;
741 else kfd = open(argv[idx], O_RDONLY | O_LARGEFILE);
742 if (kfd == -1) xerror(NO, NO, YES, "%s", argv[idx]);
744 lio = strnlen(argv[idx], PATH_MAX);
745 memset(argv[idx], '*', lio);
752 if (do_full_key == NO && tweakf) {
755 if (!strcmp(tweakf, "-")) twfd = 0;
756 else twfd = open(tweakf, O_RDONLY | O_LARGEFILE);
757 if (twfd == -1) xerror(NO, NO, YES, "%s", tweakf);
758 lio = ldone = xread(twfd, tweak, TF_TWEAK_SIZE);
759 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", tweakf);
760 if (ldone < TF_TWEAK_SIZE)
761 xerror(NO, NO, YES, "%s: %zu bytes tweak required", tweakf, TF_TWEAK_SIZE);
768 if (!strcmp(argv[idx], "-") && kfd) sfd = 0;
770 sfd = open(argv[idx], O_RDONLY | O_LARGEFILE);
771 if (do_preserve_time) if (fstat(sfd, &s_stat) == -1)
772 xerror(YES, NO, YES, "stat(%s)", argv[idx]);
774 if (sfd == -1) xerror(NO, NO, YES, "%s", argv[idx]);
776 if (do_edcrypt == TFC_DO_DECRYPT && do_mac != NO && maxlen != NOFSIZE) {
777 if (verbose) tfc_esay("%s: disabling signature verification on "
778 "requested partial decryption.", tfc_format_pid(progname));
782 if ((do_mac >= TFC_MAC_VRFY || do_mac == TFC_MAC_DROP) && !do_mac_file) {
783 maxlen = tfc_fdsize(sfd);
784 if (maxlen == NOFSIZE)
786 "Cannot verify embedded MAC with non-seekable source!");
787 maxlen -= TF_FROM_BITS(macbits);
789 srcfname = argv[idx];
793 if (!do_mac_file && (do_mac >= TFC_MAC_VRFY && sfd == 0))
794 xerror(NO, YES, YES, "Cannot verify embedded MAC with non-seekable source!");
796 if (ctrsz == NOSIZE) ctrsz = TF_BLOCK_SIZE;
797 if (ctrsz > TF_BLOCK_SIZE) ctrsz = TF_BLOCK_SIZE;
799 if (ctr_mode == TFC_MODE_ECB) goto _ctrskip1;
804 if (!strcmp(counter_file, "-")) ctrfd = 0;
805 else ctrfd = open(counter_file, O_RDONLY | O_LARGEFILE);
806 if (ctrfd == -1) xerror(NO, NO, YES, "%s", counter_file);
807 lio = xread(ctrfd, ctr, ctrsz);
808 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", counter_file);
809 if (lio < ctrsz) xerror(NO, YES, YES, "counter file is too small (%zu)!", lio);
812 else if (counter_opt == TFC_CTR_HEAD) {
815 lrem = lblock = ctrsz;
816 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
817 _ctrragain: lio = xread(sfd, pblk, lrem);
818 if (lio != NOSIZE) ldone += lio;
820 if (errno != EIO && catch_all_errors != YES)
821 xerror(NO, NO, NO, "%s", srcfname);
822 switch (error_action) {
823 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _ctrragain; break;
824 case TFC_ERRACT_SYNC:
825 case TFC_ERRACT_LSYNC:
826 xerror(YES, NO, NO, "%s", srcfname);
827 lio = ldone = lrem = lblock;
829 if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
830 else lseek(sfd, rdpos + lio, SEEK_SET);
832 default: xerror(NO, NO, NO, "%s", srcfname); break;
835 if (lio && lio < lrem) {
840 total_processed_src += ldone;
845 if (counter_opt == TFC_CTR_HEAD && ctr_mode != TFC_MODE_ECB)
847 if (lseek(sfd, iseek, SEEK_SET) == -1)
848 xerror(ignore_seek_errors, NO, NO, "%s: seek failed", srcfname);
851 if (ctr_mode == TFC_MODE_PLAIN) goto _plain;
853 if (verbose) tfc_esay("%s: hashing password", tfc_format_pid(progname));
855 if (rawkey == TFC_RAWKEY_KEYFILE) {
856 tfc_yesno xtskeyset = NO;
860 lrem = lblock = TF_FROM_BITS(TFC_KEY_BITS);
861 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(kfd);
862 _keyragain: lio = xread(kfd, pblk, lrem);
863 if (lio != NOSIZE) ldone += lio;
865 if (errno != EIO && catch_all_errors != YES)
866 xerror(NO, NO, NO, "reading key");
867 switch (error_action) {
868 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "reading key"); goto _keyragain; break;
869 case TFC_ERRACT_SYNC:
870 case TFC_ERRACT_LSYNC:
871 xerror(YES, NO, NO, "reading key");
872 lio = ldone = lrem = lblock;
874 if (rdpos == NOFSIZE) lseek(kfd, lio, SEEK_CUR);
875 else lseek(kfd, rdpos + lio, SEEK_SET);
877 default: xerror(NO, NO, NO, "reading key"); break;
880 if (lio && lio < lrem) {
885 if (ldone < lblock) xerror(NO, YES, YES, "rawkey too small! (%zu)", ldone);
887 if (ctr_mode == TFC_MODE_XTS) {
888 if (xtskeyset == NO) {
895 else if (rawkey == TFC_RAWKEY_ASKSTR) {
896 tfc_yesno xtskeyset = NO;
898 pblk = key; n = sizeof(key);
899 _xts2keyaskstr: memset(&getps, 0, sizeof(struct getpasswd_state));
900 getps.fd = getps.efd = -1;
901 getps.passwd = (char *)pblk;
903 getps.echo = pw_prompt ? pw_prompt : "Enter rawkey (str): ";
904 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
905 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
906 getps.flags = GETP_WAITFILL;
907 n = xgetpasswd(&getps);
908 if (n == NOSIZE) xerror(NO, NO, YES, "getting string rawkey");
909 if (n == ((size_t)-2)) xexit(1);
910 if (verbose) say_hint(pblk, n, "Raw string key hint");
911 if (ctr_mode == TFC_MODE_XTS) {
912 if (xtskeyset == NO) {
913 pblk = xtskey; n = sizeof(xtskey);
919 else if (rawkey == TFC_RAWKEY_ASKHEX) {
920 tfc_yesno xtskeyset = NO;
924 memset(&getps, 0, sizeof(struct getpasswd_state));
925 getps.fd = getps.efd = -1;
926 getps.passwd = pwdask;
927 getps.pwlen = (TF_FROM_BITS(TFC_KEY_BITS)*2);
928 getps.echo = pw_prompt ? pw_prompt : "Enter rawkey (hex): ";
929 getps.charfilter = (show_secrets == YES) ? getps_plain_hex_filter : getps_hex_filter;
930 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
931 getps.flags = GETP_WAITFILL;
932 n = xgetpasswd(&getps);
933 if (n == NOSIZE) xerror(NO, NO, YES, "getting hex rawkey");
934 if (n == ((size_t)-2)) xexit(1);
936 tfc_esay("Please input even number of hex digits!");
937 goto _rawkey_hex_again;
939 hex2bin(pblk, pwdask);
940 memset(pwdask, 0, sizeof(pwdask));
941 if (verbose) say_hint(pblk, n/2, "Raw hex key hint");
942 if (ctr_mode == TFC_MODE_XTS) {
943 if (xtskeyset == NO) {
946 goto _rawkey_hex_again;
951 _pwdagain: memset(&getps, 0, sizeof(struct getpasswd_state));
952 getps.fd = getps.efd = -1;
953 getps.passwd = pwdask;
954 getps.pwlen = sizeof(pwdask)-1;
955 getps.echo = pw_prompt ? pw_prompt : "Enter password: ";
956 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
957 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
958 getps.flags = GETP_WAITFILL;
959 n = xgetpasswd(&getps);
960 if (n == NOSIZE) xerror(NO, NO, YES, "getting password");
961 if (n == ((size_t)-2)) xexit(1);
962 if (do_edcrypt == TFC_DO_ENCRYPT && no_repeat == NO) {
963 getps.fd = getps.efd = -1;
964 getps.passwd = pwdagain;
965 getps.pwlen = sizeof(pwdagain)-1;
966 getps.echo = "Enter it again: ";
967 getps.flags = GETP_WAITFILL;
968 n = xgetpasswd(&getps);
969 if (n == NOSIZE) xerror(NO, NO, YES, "getting password again");
970 if (n == ((size_t)-2)) xexit(1);
971 if (strncmp(pwdask, pwdagain, sizeof(pwdagain)-1) != 0) {
972 tfc_esay("Passwords are different, try again");
976 if (verbose) say_hint(pwdask, n, "Password hint");
977 skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, pwdask, n);
978 memset(pwdask, 0, sizeof(pwdask));
979 memset(pwdagain, 0, sizeof(pwdagain));
982 if (skeinfd(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, kfd, keyoffset, maxkeylen) != YES)
983 xerror(NO, NO, YES, "hashing key");
987 if (tfc_saltsz > 0) {
988 memcpy(tfc_salt+tfc_saltsz, key, TF_FROM_BITS(TFC_KEY_BITS));
989 skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, tfc_salt, tfc_saltsz+TF_FROM_BITS(TFC_KEY_BITS));
991 if (nr_turns > 1) for (x = 0; x < nr_turns; x++)
992 skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
993 memset(tfc_salt, 0, TFC_MAX_SALT);
996 if (ctr_mode == TFC_MODE_XTS && rawkey == NO) {
997 skein(xtskey, TF_NR_KEY_BITS, mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1002 tfc_yesno xtskeyset = NO;
1005 if (!strcmp(genkeyf, "-")) krfd = 1;
1006 else krfd = open(genkeyf, O_WRONLY | O_CREAT | O_LARGEFILE | write_flags, 0666);
1007 if (krfd == -1) xerror(NO, NO, YES, "%s", genkeyf);
1008 _xts2genkey: if (xwrite(krfd, pblk, TF_FROM_BITS(TFC_KEY_BITS)) == NOSIZE) xerror(NO, NO, YES, "%s", genkeyf);
1009 if (do_fsync && fsync(krfd) == -1) xerror(NO, NO, YES, "%s", genkeyf);
1010 if (verbose && xtskeyset == NO) {
1011 tfc_esay("%s: password hashing done", tfc_format_pid(progname));
1012 tfc_esay("%s: rawkey written to %s.", tfc_format_pid(progname), genkeyf);
1013 tfc_esay("%s: Have a nice day!", tfc_format_pid(progname));
1016 if (ctr_mode == TFC_MODE_XTS) {
1017 if (xtskeyset == NO) {
1029 if (iseek_blocks && (do_edcrypt == TFC_DO_DECRYPT && do_mac != NO)) {
1030 if (verbose) tfc_esay("%s: disabling signature verification on "
1031 "requested partial decryption.", tfc_format_pid(progname));
1036 if (mackey_opt == TFC_MACKEY_RAWKEY) skein(mackey, TF_MAX_BITS, key, key, TF_FROM_BITS(TFC_KEY_BITS));
1037 if (ctr_mode < TFC_MODE_OCB) {
1038 if (verbose) tfc_esay("%s: doing MAC calculation, processing speed "
1039 "will be slower.", tfc_format_pid(progname));
1040 if (mackey_opt) skein_init_key(&sk, mackey, macbits);
1041 else skein_init(&sk, macbits);
1045 if (!counter_file && counter_opt <= TFC_CTR_SHOW && ctr_mode != TFC_MODE_ECB) {
1046 skein(ctr, TF_TO_BITS(ctrsz), mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1050 if (ctr_mode == TFC_MODE_XTS) tf_convkey(xtskey);
1051 if (do_full_key == NO) {
1052 if (!tweakf) skein(tweak, TF_NR_TWEAK_BITS, NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1053 tf_tweak_set(key, tweak);
1055 if (ctr_mode == TFC_MODE_ECB) goto _ctrskip2;
1057 if (counter_opt == TFC_CTR_ZERO) memset(ctr, 0, ctrsz);
1059 tfc_data_to_words64(&iseek_blocks, sizeof(iseek_blocks));
1060 tf_ctr_set(ctr, &iseek_blocks, sizeof(iseek_blocks));
1061 if (do_mac == TFC_MAC_JUST_VRFY2) memcpy(svctr, ctr, TF_BLOCK_SIZE);
1063 if (counter_opt == TFC_CTR_SHOW) {
1064 switch (do_outfmt) {
1065 case TFC_OUTFMT_B64: tfc_printbase64(stderr, ctr, ctrsz, YES); break;
1066 case TFC_OUTFMT_RAW: xwrite(2, ctr, ctrsz); break;
1067 case TFC_OUTFMT_HEX: mehexdump(ctr, ctrsz, ctrsz, YES); break;
1070 else if (counter_opt == TFC_CTR_RAND) tfc_getrandom(ctr, ctrsz);
1077 if (verbose) tfc_esay("%s: password hashing done", tfc_format_pid(progname));
1079 if (overwrite_source && srcfname) argv[idx] = srcfname;
1083 if (!strcmp(argv[idx], "-")) dfd = 1;
1084 else dfd = open(argv[idx], O_RDWR | O_LARGEFILE | write_flags, 0666);
1086 dfd = open(argv[idx], O_WRONLY | O_CREAT | O_LARGEFILE | write_flags, 0666);
1087 if (dfd == -1) xerror(NO, NO, YES, "%s", argv[idx]);
1089 dstfname = argv[idx];
1094 if (lseek(dfd, oseek, SEEK_SET) == -1)
1095 xerror(ignore_seek_errors, NO, NO, "%s: seek failed", dstfname);
1098 for (x = 1; x < NSIG; x++) signal(x, SIG_IGN);
1099 memset(&sigact, 0, sizeof(sigact));
1100 sigact.sa_flags = SA_RESTART;
1101 sigact.sa_handler = print_crypt_status;
1102 sigaction(SIGUSR1, &sigact, NULL);
1103 sigaction(SIGALRM, &sigact, NULL);
1104 if (status_timer) setup_next_alarm(status_timer > 1000000 ? 1000000 : status_timer);
1105 sigact.sa_handler = change_status_width;
1106 sigaction(SIGQUIT, &sigact, NULL);
1107 sigact.sa_handler = change_status_timer;
1108 sigaction(SIGUSR2, &sigact, NULL);
1110 sigact.sa_handler = print_crypt_status;
1111 sigaction(SIGINT, &sigact, NULL);
1112 sigaction(SIGTERM, &sigact, NULL);
1113 sigaction(SIGTSTP, &sigact, NULL);
1116 sigact.sa_handler = exit_sigterm;
1117 sigaction(SIGINT, &sigact, NULL);
1118 sigaction(SIGTERM, &sigact, NULL);
1119 sigact.sa_handler = handle_sigtstp;
1120 sigaction(SIGTSTP, &sigact, NULL);
1122 memset(&sigact, 0, sizeof(struct sigaction));
1124 tfc_getcurtime(&delta_time);
1127 if (counter_opt == TFC_CTR_RAND && ctr_mode != TFC_MODE_ECB) {
1131 _ctrwagain: lio = xwrite(dfd, pblk, lrem);
1132 if (lio != NOSIZE) ldone += lio;
1133 else xerror(NO, NO, NO, "%s", dstfname);
1134 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1140 total_processed_dst += ldone;
1141 delta_processed += ldone;
1144 if (ctr_mode == TFC_MODE_STREAM) tfe_init_iv(&tfe, key, ctr);
1146 if (do_mac == TFC_MAC_JUST_VRFY2) {
1147 rwd = tfc_fdgetpos(sfd);
1148 if (rwd == NOFSIZE) {
1149 tfc_esay("%s: WARNING: input is not seekable, disabling MAC testing mode", tfc_format_pid(progname));
1150 do_mac = TFC_MAC_VRFY;
1152 goto _nodecrypt_again_vrfy2;
1154 _decrypt_again_vrfy2:
1155 if (lseek(sfd, (off_t)rwd, SEEK_SET) == ((off_t)-1)) {
1156 xerror(ignore_seek_errors, NO, YES, "MAC testing seek failed");
1158 total_processed_src = rwd;
1159 memcpy(ctr, svctr, TF_BLOCK_SIZE);
1160 memset(svctr, 0, TF_BLOCK_SIZE);
1163 _nodecrypt_again_vrfy2:
1171 lrem = lblock = blk_len_adj(maxlen, total_processed_src, blksize);
1172 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
1173 _ragain: lio = xread(sfd, pblk, lrem);
1175 if ((do_read_loops != 0 && sfd != 0) && (loopcnt < do_read_loops)) {
1176 lseek(sfd, 0L, SEEK_SET);
1183 if (lio != NOSIZE) ldone += lio;
1185 if (errno != EIO && catch_all_errors != YES)
1186 xerror(NO, NO, NO, "%s", srcfname);
1187 switch (error_action) {
1188 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _ragain; break;
1189 case TFC_ERRACT_SYNC:
1190 case TFC_ERRACT_LSYNC:
1191 xerror(YES, NO, NO, "%s", srcfname);
1192 lio = ldone = lrem = lblock;
1193 memset(srcblk, 0, lio);
1194 if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
1195 else lseek(sfd, rdpos + lio, SEEK_SET);
1197 default: xerror(NO, NO, NO, "%s", srcfname); break;
1200 if (lio && lio < lrem) {
1205 total_processed_src += ldone;
1207 if (do_pad && (ldone % TF_BLOCK_SIZE)) {
1208 size_t orig = ldone;
1209 ldone += (TF_BLOCK_SIZE - (ldone % TF_BLOCK_SIZE));
1210 if (ldone > blksize) ldone = blksize;
1211 memset(srcblk+orig, 0, sizeof(srcblk)-orig);
1214 if (do_mac == TFC_MAC_SIGN && ctr_mode < TFC_MODE_OCB)
1215 skein_update(&sk, srcblk, ldone);
1217 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, dstblk, srcblk, ldone);
1218 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, dstblk, srcblk, ldone);
1219 else if (ctr_mode == TFC_MODE_XTS && do_edcrypt == TFC_DO_ENCRYPT)
1220 tf_xts_encrypt(key, xtskey, ctr, dstblk, srcblk, ldone, xtsblocks);
1221 else if (ctr_mode == TFC_MODE_XTS && do_edcrypt == TFC_DO_DECRYPT)
1222 tf_xts_decrypt(key, xtskey, ctr, dstblk, srcblk, ldone, xtsblocks);
1223 else if (ctr_mode == TFC_MODE_ECB && do_edcrypt == TFC_DO_ENCRYPT)
1224 tf_ecb_encrypt(key, dstblk, srcblk, ldone);
1225 else if (ctr_mode == TFC_MODE_ECB && do_edcrypt == TFC_DO_DECRYPT)
1226 tf_ecb_decrypt(key, dstblk, srcblk, ldone);
1227 else if (ctr_mode == TFC_MODE_CBC && do_edcrypt == TFC_DO_ENCRYPT)
1228 tf_cbc_encrypt(key, ctr, dstblk, srcblk, ldone);
1229 else if (ctr_mode == TFC_MODE_CBC && do_edcrypt == TFC_DO_DECRYPT)
1230 tf_cbc_decrypt(key, ctr, dstblk, srcblk, ldone);
1232 else if (ctr_mode == TFC_MODE_OCB && do_edcrypt == TFC_DO_ENCRYPT)
1233 tf_ocb_encrypt(key, ctr, dstblk, do_mac == TFC_MAC_SIGN ? macresult : NULL, srcblk, ldone, xtsblocks);
1234 else if (ctr_mode == TFC_MODE_OCB && do_edcrypt == TFC_DO_DECRYPT)
1235 tf_ocb_decrypt(key, ctr, dstblk, do_mac >= TFC_MAC_VRFY ? macresult : NULL, srcblk, ldone, xtsblocks);
1237 else if (ctr_mode == TFC_MODE_PLAIN)
1238 memcpy(dstblk, srcblk, ldone);
1240 if (do_mac >= TFC_MAC_VRFY && ctr_mode < TFC_MODE_OCB)
1241 skein_update(&sk, dstblk, ldone);
1242 if (do_mac >= TFC_MAC_JUST_VRFY) goto _nowrite;
1247 _wagain: lio = xwrite(dfd, pblk, lrem);
1248 if (lio != NOSIZE) ldone += lio;
1249 else xerror(NO, NO, NO, "%s", dstfname);
1250 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1256 total_written_dst += ldone;
1257 _nowrite: total_processed_dst += ldone;
1258 delta_processed += ldone;
1260 if (maxlen != NOFSIZE && total_processed_src >= maxlen) {
1267 if (do_mac >= TFC_MAC_VRFY) {
1271 lrem = lblock = TF_FROM_BITS(macbits);
1272 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
1273 _macragain: lio = xread(sfd, pblk, lrem);
1274 if (lio != NOSIZE) ldone += lio;
1276 if (errno != EIO && catch_all_errors != YES)
1277 xerror(NO, NO, NO, "%s", srcfname);
1278 switch (error_action) {
1279 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _macragain; break;
1280 case TFC_ERRACT_SYNC:
1281 case TFC_ERRACT_LSYNC:
1282 xerror(YES, NO, NO, "%s", srcfname);
1283 lio = ldone = lrem = lblock;
1284 memset(macvrfy, 0, lio);
1285 if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
1286 else lseek(sfd, rdpos + lio, SEEK_SET);
1288 default: xerror(NO, NO, NO, "%s", srcfname); break;
1291 if (lio && lio < lrem) {
1296 total_processed_src += ldone;
1301 if (!strcmp(do_mac_file, "-")) mfd = 0;
1302 else mfd = open(do_mac_file, O_RDONLY | O_LARGEFILE);
1303 if (mfd == -1) xerror(YES, NO, NO, "%s", do_mac_file);
1304 lio = ldone = xread(mfd, tmpdata, sizeof(tmpdata));
1305 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", do_mac_file);
1306 if (!memcmp(tmpdata, TFC_ASCII_TFC_MAC_FOURCC, TFC_ASCII_TFC_MAC_FOURCC_LEN)) {
1307 memmove(tmpdata, tmpdata+TFC_ASCII_TFC_MAC_FOURCC_LEN,
1308 sizeof(tmpdata)-TFC_ASCII_TFC_MAC_FOURCC_LEN);
1309 lio = TF_FROM_BITS(macbits);
1310 base64_decode((char *)macvrfy, lio, (char *)tmpdata, sizeof(tmpdata));
1312 else memcpy(macvrfy, tmpdata, TF_FROM_BITS(macbits));
1316 if (ldone < TF_FROM_BITS(macbits)) {
1317 if (quiet == NO) tfc_esay("%s: short signature (%zu), "
1318 "not verifying", tfc_format_pid(progname), ldone);
1323 if (ctr_mode < TFC_MODE_OCB) skein_final(macresult, &sk);
1324 else skein(macresult, macbits, mackey, macresult, TF_FROM_BITS(macbits));
1326 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1327 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1328 else if (ctr_mode == TFC_MODE_XTS) tf_xts_decrypt(key, xtskey, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits), xtsblocks);
1329 else if (ctr_mode == TFC_MODE_ECB) tf_ecb_decrypt(key, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1330 else if (ctr_mode == TFC_MODE_CBC) tf_cbc_decrypt(key, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1331 else if (ctr_mode == TFC_MODE_OCB) tf_ocb_decrypt(key, ctr, tmpdata, NULL, macvrfy, TF_FROM_BITS(macbits), xtsblocks);
1333 if (!memcmp(tmpdata, macresult, TF_FROM_BITS(macbits))) {
1335 tfc_esay("%s: signature is good", tfc_format_pid(progname));
1337 if (do_outfmt == TFC_OUTFMT_B64) tfc_printbase64(stderr, macresult, TF_FROM_BITS(macbits), YES);
1338 else mehexdump(macresult, TF_FROM_BITS(macbits), TF_FROM_BITS(macbits), YES);
1341 if (do_mac == TFC_MAC_JUST_VRFY2) {
1342 if (verbose) tfc_esay("%s: -u: MAC signature is valid, proceeding with decrypting it again", tfc_format_pid(progname));
1343 do_mac = TFC_MAC_DROP;
1344 goto _decrypt_again_vrfy2;
1349 tfc_esay("%s: signature is BAD: "
1350 "wrong password, key, mode, or file is not signed", tfc_format_pid(progname));
1351 if (do_mac == TFC_MAC_JUST_VRFY2) tfc_esay("%s: -u: MAC signature is invalid, not decrypting it again", tfc_format_pid(progname));
1356 _shortmac: memset(macvrfy, 0, sizeof(macvrfy));
1357 memset(macresult, 0, sizeof(macresult));
1358 memset(tmpdata, 0, sizeof(tmpdata));
1361 else if (do_mac == TFC_MAC_SIGN) {
1362 if (ctr_mode < TFC_MODE_OCB) skein_final(macresult, &sk);
1363 else skein(macresult, macbits, mackey, macresult, TF_FROM_BITS(macbits));
1365 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, tmpdata, macresult, TF_FROM_BITS(macbits));
1366 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, tmpdata, macresult, TF_FROM_BITS(macbits));
1367 else if (ctr_mode == TFC_MODE_XTS) tf_xts_encrypt(key, xtskey, ctr, tmpdata, macresult, TF_FROM_BITS(macbits), xtsblocks);
1368 else if (ctr_mode == TFC_MODE_ECB) tf_ecb_encrypt(key, tmpdata, macresult, TF_FROM_BITS(macbits));
1369 else if (ctr_mode == TFC_MODE_CBC) tf_cbc_encrypt(key, ctr, tmpdata, macresult, TF_FROM_BITS(macbits));
1370 else if (ctr_mode == TFC_MODE_OCB) tf_ocb_encrypt(key, ctr, tmpdata, NULL, macresult, TF_FROM_BITS(macbits), xtsblocks);
1371 memset(macresult, 0, sizeof(macresult));
1375 lio = lrem = TF_FROM_BITS(macbits);
1377 _macwagain: lio = xwrite(dfd, pblk, lrem);
1378 if (lio != NOSIZE) ldone += lio;
1379 else xerror(NO, NO, NO, "%s", dstfname);
1380 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1386 total_processed_dst += ldone;
1387 delta_processed += ldone;
1392 if (!strcmp(do_mac_file, "-")) mfd = 1;
1393 else mfd = open(do_mac_file, O_WRONLY | O_CREAT | O_LARGEFILE | write_flags, 0666);
1394 if (mfd == -1) xerror(YES, NO, NO, "%s", do_mac_file);
1395 if (do_outfmt == TFC_OUTFMT_B64) {
1396 memcpy(macvrfy, tmpdata, TF_FROM_BITS(macbits));
1397 memset(tmpdata, 0, TFC_TMPSIZE);
1398 memcpy(tmpdata, TFC_ASCII_TFC_MAC_FOURCC, TFC_ASCII_TFC_MAC_FOURCC_LEN);
1399 base64_encode((char *)tmpdata+TFC_ASCII_TFC_MAC_FOURCC_LEN, (char *)macvrfy, TF_FROM_BITS(macbits));
1400 lrem = strnlen((char *)tmpdata, sizeof(tmpdata));
1402 tmpdata[lrem] = '\n';
1405 lio = xwrite(mfd, tmpdata, lrem);
1407 else lio = xwrite(mfd, tmpdata, TF_FROM_BITS(macbits));
1408 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", do_mac_file);
1409 if (do_fsync && fsync(mfd) == -1) xerror(NO, NO, YES, "%s", do_mac_file);
1413 memset(macvrfy, 0, sizeof(macvrfy));
1414 memset(macresult, 0, sizeof(macresult));
1415 memset(tmpdata, 0, sizeof(tmpdata));
1418 if (verbose || status_timer || (do_stop == YES && quiet == NO)) print_crypt_status(0);