source: trunk/src/sh_tiger0.c@ 400

Last change on this file since 400 was 383, checked in by katerina, 13 years ago

Fix for ticket #281 (warnings from clang static analyzer).
File size: 48.7 KB
Line 
1#include "config_xor.h"
2
3#define USE_MD5
4#define USE_SHA1
5
6#include <stdio.h>
7#include <string.h>
8
9#include <sys/types.h>
10#ifdef HAVE_UNISTD_H
11#include <unistd.h>
12#endif
13#ifdef HAVE_MEMORY_H
14#include <memory.h>
15#endif
16
17#if defined(HAVE_MLOCK) && !defined(HAVE_BROKEN_MLOCK)
18#include <sys/mman.h>
19#endif
20
21#include "sh_tiger.h"
22
23#include "sh_unix.h"
24#include "sh_error.h"
25#include "sh_utils.h"
26#include "sh_pthread.h"
27#include "sh_string.h"
28
29#define PRIV_MAX 32768
30
31#if defined(TIGER_64_BIT)
32#if defined(HAVE_LONG_64)
33typedef unsigned long int word64;
34#elif defined(HAVE_LONG_LONG_64)
35typedef unsigned long long int word64;
36#else
37#error No 64 bit type found !
38#endif
39#endif
40
41#if defined(HAVE_INT_32)
42typedef unsigned int sh_word32;
43#define MYFORMAT (_("%08X%08X%08X%08X%08X%08X"))
44#define GPGFORMAT (_("%08X %08X %08X %08X %08X %08X"))
45#elif defined(HAVE_LONG_32)
46typedef unsigned long sh_word32;
47#define MYFORMAT (_("%08lX%08lX%08lX%08lX%08lX%08lX"))
48#define GPGFORMAT (_("%08lX %08lX %08lX %08lX %08lX %08lX"))
49#elif defined(HAVE_SHORT_32)
50typedef unsigned short sh_word32;
51#define MYFORMAT (_("%08X%08X%08X%08X%08X%08X"))
52#define GPGFORMAT (_("%08X %08X %08X %08X %08X %08X"))
53#else
54#error No 32 bit type found !
55#endif
56
57typedef unsigned char sh_byte;
58
59#define SH_KEY_NULL _("000000000000000000000000000000000000000000000000")
60
61#undef FIL__
62#define FIL__ _("sh_tiger0.c")
63
64#if defined(TIGER_64_BIT)
65
66void tiger_t(const word64 *str, word64 length, word64 * res);
67void tiger(const word64 *str, word64 length, word64 * res);
68
69#ifdef TIGER_DBG
70static void tiger_dbg(word64 res[3], int step,
71 unsigned long nblocks, unsigned long ncount)
72{
73 return;
74}
75#endif
76#else
77void tiger(const sh_word32 *str, sh_word32 length, sh_word32 * res);
78void tiger_t(const sh_word32 *str, sh_word32 length, sh_word32 * res);
79
80#ifdef TIGER_DBG
81static
82void tiger_dbg(sh_word32 res[6], int step,
83 unsigned long nblocks, unsigned long ncount)
84{
85 fprintf(stderr,
86 _("ST %d BLK %2ld CT %2ld %08lX %08lX %08lX %08lX %08lX %08lX\n"),
87 step,
88 nblocks,
89 ncount,
90 (sh_word32)(res[1]),
91 (sh_word32)(res[0]),
92 (sh_word32)(res[3]),
93 (sh_word32)(res[2]),
94 (sh_word32)(res[5]),
95 (sh_word32)(res[4]) );
96}
97#endif
98#endif
99
100/* this is the wrapper function -- not part of the tiger reference
101 * implementation
102 */
103
104/* static sh_byte buffer[PRIV_MAX + 72]; */
105
106#if defined(TIGER_64_BIT)
107static
108word64 * sh_tiger_hash_val (const char * filename, TigerType what,
109 UINT64 * Length, int timeout, word64 * res)
110#else
111static
112sh_word32 * sh_tiger_hash_val (const char * filename, TigerType what,
113 UINT64 * Length, int timeout, sh_word32 * res)
114#endif
115{
116 SL_TICKET fd;
117 sh_string * content = NULL;
118 int i, j, tt;
119 int count = 0;
120 int blk;
121 char * tmp;
122 sh_byte * bptr;
123 sh_byte bbuf[64];
124 UINT64 bcount = 0;
125
126 sh_byte * buffer = SH_ALLOC(PRIV_MAX + 72);
127
128 unsigned long pages_read;
129 uid_t euid;
130
131 unsigned long ncount = 0, nblocks = 0;
132 unsigned long t, msb, lsb;
133
134#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
135 /*@-nestedextern@*/
136 extern long IO_Limit;
137 /*@+nestedextern@*/
138#endif
139
140#if defined(TIGER_64_BIT)
141#define TIGER_CAST (const word64*)
142 /* word64 res[3]; */
143 res[0]= (word64) 0x0123456789ABCDEFLL;
144 res[1]= (word64) 0xFEDCBA9876543210LL;
145 res[2]= (word64) 0xF096A5B4C3B2E187LL;
146#else
147#define TIGER_CAST (const sh_word32*)
148 /* sh_word32 res[6]; */
149 res[0]= (sh_word32) 0x89ABCDEF;
150 res[1]= (sh_word32) 0x01234567;
151 res[2]= (sh_word32) 0x76543210;
152 res[3]= (sh_word32) 0xFEDCBA98;
153 res[4]= (sh_word32) 0xC3B2E187;
154 res[5]= (sh_word32) 0xF096A5B4;
155#endif
156
157 SL_ENTER(_("sh_tiger_hash_val"));
158
159 if (what >= TIGER_FILE)
160 {
161 if (what > TIGER_FILE)
162 {
163 fd = what;
164 content = sl_get_content(fd);
165 TPT((0,FIL__, __LINE__, _("msg=<TIGER_FD>, fd=<%ld>\n"), fd));
166 }
167 else
168 {
169 TPT((0,FIL__, __LINE__, _("msg=<TIGER_FILE>, path=<%s>\n"),
170 (filename == NULL ? _("(null)") : filename) ));
171 fd = sl_open_read (FIL__, __LINE__, filename, SL_YESPRIV);
172 }
173
174 if (SL_ISERROR (fd))
175 {
176 TPT((0, FIL__, __LINE__, _("msg=<SL_ISERROR (%ld)>\n"), fd));
177 tmp = sh_util_safe_name (filename);
178 (void) sl_get_euid(&euid);
179 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, (int)fd,
180 MSG_E_ACCESS, (long) euid, tmp);
181 SH_FREE(tmp);
182 SH_FREE(buffer);
183 *Length = 0;
184 SL_RETURN( NULL, _("sh_tiger_hash_val"));
185 }
186
187#if defined(HAVE_MLOCK) && !defined(HAVE_BROKEN_MLOCK)
188 if (skey->mlock_failed == SL_FALSE)
189 {
190 if ( (-1) == sh_unix_mlock(FIL__, __LINE__,
191 (char *)buffer,
192 (PRIV_MAX)*sizeof(sh_byte)))
193 {
194 SH_MUTEX_LOCK_UNSAFE(mutex_skey);
195 skey->mlock_failed = SL_TRUE;
196 SH_MUTEX_UNLOCK_UNSAFE(mutex_skey);
197 }
198 }
199#else
200 if (skey->mlock_failed == SL_FALSE)
201 {
202 SH_MUTEX_LOCK_UNSAFE(mutex_skey);
203 skey->mlock_failed = SL_TRUE;
204 SH_MUTEX_UNLOCK_UNSAFE(mutex_skey);
205 }
206#endif
207
208#ifdef TIGER_DBG
209 tiger_dbg (res, 0, nblocks, ncount);
210#endif
211
212 pages_read = 0;
213
214 while (1)
215 {
216 if (timeout > 0)
217 count = sl_read_timeout (fd, buffer, PRIV_MAX, timeout, SL_TRUE);
218 else
219 count = sl_read (fd, buffer, PRIV_MAX);
220
221 ++pages_read;
222
223 if (SL_ISERROR (count))
224 {
225 int error = errno;
226
227 if (sig_termfast == 1) {
228 sh_unix_munlock((char *)buffer, (PRIV_MAX)*sizeof(sh_byte));
229 SH_FREE(buffer);
230 *Length = 0;
231 SL_RETURN( NULL, _("sh_tiger_hash_val"));
232 }
233 TPT((0, FIL__ , __LINE__ , _("msg=<SL_ISERROR (%ld)>\n"), count));
234 tmp = sh_util_safe_name (filename);
235 if (count == SL_TIMEOUT)
236 {
237 if (timeout != 7) {
238 sh_error_handle (SH_ERR_ERR, FIL__, __LINE__, count,
239 MSG_E_TIMEOUT, timeout, tmp);
240 }
241 }
242 else
243 {
244 char errbuf[SH_ERRBUF_SIZE];
245 char errbuf2[SH_ERRBUF_SIZE];
246 sl_strlcpy(errbuf, sl_error_string(count), sizeof(errbuf));
247 sh_error_message(error, errbuf2, sizeof(errbuf2));
248 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__,
249 count, MSG_E_READ, errbuf, errbuf2, tmp);
250 }
251 SH_FREE(tmp);
252 memset (bbuf, 0, 64);
253 memset (buffer, 0, PRIV_MAX);
254
255 sh_unix_munlock((char *)buffer, (PRIV_MAX)*sizeof(sh_byte));
256 SH_FREE(buffer);
257 *Length = 0;
258 SL_RETURN( NULL, _("sh_tiger_hash_val"));
259 }
260
261 if (content)
262 sh_string_cat_lchar(content, (char*)buffer, count);
263
264 bcount += count;
265
266 if (*Length != TIGER_NOLIM)
267 {
268 if (bcount > *Length)
269 {
270 count = count - (bcount - (*Length));
271 bcount = *Length;
272 count = (count < 0) ? 0 : count;
273 }
274 }
275
276 blk = (count / 64); /* number of 64-byte words */
277
278 /* nblocks += blk; number of 64-byte words
279 * count cannot be negative here, see 'if (SL_ISERROR (count))'
280 */
281 tt = blk*64;
282
283 ncount = (unsigned long) (count - tt);
284
285 nblocks += blk;
286 /* MAY_LOCK */
287 sh.statistics.bytes_hashed += tt;
288
289 tt = 0;
290 for (i = 0; i < blk; ++i)
291 {
292 bptr = &buffer[tt]; tt += 64;
293
294 tiger_t(TIGER_CAST bptr, 64, res);
295
296#ifdef TIGER_DBG
297 tiger_dbg (res, 3, nblocks, ncount);
298#endif
299 }
300
301 if (blk < (PRIV_MAX / 64)) /* this must be (PRIV_MAX / 64) */
302 break;
303
304#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
305 if (sig_termfast == 1)
306 {
307 memset (bbuf, 0, 64);
308 memset (buffer, 0, PRIV_MAX);
309 sh_unix_munlock((char *)buffer, (PRIV_MAX)*sizeof(sh_byte));
310 SH_FREE(buffer);
311 *Length = 0;
312 SL_RETURN( NULL, _("sh_tiger_hash_val"));
313 }
314 if ((IO_Limit) > 0 && (pages_read == 32)) /* check for I/O limit */
315 {
316 sh_unix_io_pause ();
317 pages_read = 0;
318 }
319#endif
320 }
321
322 TPT((0, FIL__, __LINE__ , _("msg=<Last block.>\n")));
323
324 /* copy incomplete block
325 */
326 j = 0;
327 for (i = 0; i < 64; i += 4)
328 {
329 bbuf[i] = (sh_byte) '\0';
330 bbuf[i+1] = (sh_byte) '\0';
331 bbuf[i+2] = (sh_byte) '\0';
332 bbuf[i+3] = (sh_byte) '\0';
333 }
334 for (i = (count/64) * 64; i < count; ++i)
335 /*@-usedef@*/bbuf[j++] = buffer[i];/*@+usedef@*/
336
337#ifdef TIGER_DBG
338 tiger_dbg (res, 5, nblocks, ncount);
339#endif
340
341 msb = 0;
342 t = nblocks;
343 if( (lsb = t << 6) < t )
344 msb++;
345 msb += t >> 26;
346 t = lsb;
347 if( (lsb = t + ncount) < t )
348 msb++;
349 t = lsb;
350 if( (lsb = t << 3) < t )
351 msb++;
352 msb += t >> 29;
353
354 if( j < 56 )
355 {
356 bbuf[j++] = (sh_byte) 0x01; ++ncount;
357 while( j < 56 )
358 { bbuf[j++] = (sh_byte) 0; ++ncount; }
359 }
360 else
361 {
362 bbuf[j++] = (sh_byte) 0x01;
363 while( j < 64 )
364 bbuf[j++] = (sh_byte) 0;
365 tiger_t(TIGER_CAST bbuf, 64, res);
366 /* MAY_LOCK */
367 sh.statistics.bytes_hashed += 64;
368 ++nblocks;
369#ifdef TIGER_DBG
370 ncount = 0;
371#endif
372 sl_memset(bbuf, 0, 56 );
373 }
374
375#ifdef TIGER_DBG
376 tiger_dbg (res, 6, nblocks, ncount);
377#endif
378
379 bbuf[56] = (sh_byte) (lsb );
380 bbuf[57] = (sh_byte) (lsb >> 8);
381 bbuf[58] = (sh_byte) (lsb >> 16);
382 bbuf[59] = (sh_byte) (lsb >> 24);
383 bbuf[60] = (sh_byte) (msb );
384 bbuf[61] = (sh_byte) (msb >> 8);
385 bbuf[62] = (sh_byte) (msb >> 16);
386 bbuf[63] = (sh_byte) (msb >> 24);
387
388 tiger_t(TIGER_CAST bbuf, 64, res);
389 sh.statistics.bytes_hashed += 64;
390
391#ifdef TIGER_DBG
392 tiger_dbg (res, 7, nblocks, ncount);
393#endif
394
395 sl_memset (bbuf, '\0', sizeof(bbuf));
396 sl_memset (buffer, '\0', sizeof(buffer));
397
398 if (what == TIGER_FILE)
399 (void) sl_close (fd);
400 sh_unix_munlock((char *)buffer, (PRIV_MAX)*sizeof(sh_byte));
401 SH_FREE(buffer);
402 *Length = bcount;
403 SL_RETURN( res, _("sh_tiger_hash_val"));
404 }
405
406 if (what == TIGER_DATA && filename != NULL)
407 {
408 tiger(TIGER_CAST filename, (sh_word32) *Length, res);
409 sh_unix_munlock((char *)buffer, (PRIV_MAX)*sizeof(sh_byte));
410 SH_FREE(buffer);
411 SL_RETURN(res, _("sh_tiger_hash_val"));
412 }
413 sh_unix_munlock((char *)buffer, (PRIV_MAX)*sizeof(sh_byte));
414 SH_FREE(buffer);
415 *Length = 0;
416 SL_RETURN( NULL, _("sh_tiger_hash_val"));
417}
418
419/* Thu Oct 18 18:53:33 CEST 2001
420 */
421
422#ifdef USE_MD5
423/*@-type@*/
424/* md5.c - Functions to compute MD5 message digest of files or memory blocks
425 * according to the definition of MD5 in RFC 1321 from April 1992.
426 * Copyright (C) 1995, 1996 Free Software Foundation, Inc.
427 *
428 * NOTE: The canonical source of this file is maintained with the GNU C
429 * Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu.
430 *
431 * This program is free software; you can redistribute it and/or modify it
432 * under the terms of the GNU General Public License as published by the
433 * Free Software Foundation; either version 2, or (at your option) any
434 * later version.
435 *
436 * This program is distributed in the hope that it will be useful,
437 * but WITHOUT ANY WARRANTY; without even the implied warranty of
438 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
439 * GNU General Public License for more details.
440 *
441 * You should have received a copy of the GNU General Public License
442 * along with this program; if not, write to the Free Software Foundation,
443 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
444 */
445
446/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */
447
448/* Hacked to work with samhain by R. Wichmann */
449
450typedef UINT32 md5_uint32;
451
452
453/* Structure to save state of computation between the single steps. */
454typedef struct md5_ctx
455{
456 md5_uint32 A;
457 md5_uint32 B;
458 md5_uint32 C;
459 md5_uint32 D;
460
461 md5_uint32 total[2];
462 md5_uint32 buflen;
463 char buffer[128];
464} md5Param;
465
466/*
467 * The following three functions are build up the low level used in
468 * the functions `md5_stream' and `md5_buffer'.
469 */
470
471/* Initialize structure containing state of computation.
472 (RFC 1321, 3.3: Step 3) */
473static void md5_init_ctx (struct md5_ctx *ctx);
474
475/* Starting with the result of former calls of this function (or the
476 initialization function update the context for the next LEN bytes
477 starting at BUFFER.
478 It is necessary that LEN is a multiple of 64!!! */
479static void md5_process_block (const void *buffer, size_t len,
480 struct md5_ctx *ctx);
481
482/* Starting with the result of former calls of this function (or the
483 initialization function update the context for the next LEN bytes
484 starting at BUFFER.
485 It is NOT required that LEN is a multiple of 64. */
486static void md5_process_bytes (const void *buffer, size_t len,
487 struct md5_ctx *ctx);
488
489/* Process the remaining bytes in the buffer and put result from CTX
490 in first 16 bytes following RESBUF. The result is always in little
491 endian byte order, so that a byte-wise output yields to the wanted
492 ASCII representation of the message digest.
493
494 IMPORTANT: On some systems it is required that RESBUF is correctly
495 aligned for a 32 bits value. */
496static void *md5_finish_ctx (struct md5_ctx *ctx, void *resbuf);
497
498
499/* Put result from CTX in first 16 bytes following RESBUF. The result is
500 always in little endian byte order, so that a byte-wise output yields
501 to the wanted ASCII representation of the message digest.
502
503 IMPORTANT: On some systems it is required that RESBUF is correctly
504 aligned for a 32 bits value. */
505static void *md5_read_ctx (const struct md5_ctx *ctx, void *resbuf);
506
507#if WORDS_BIGENDIAN
508static md5_uint32 swapu32(md5_uint32 n)
509{
510 return ( ((n & 0xffU) << 24) |
511 ((n & 0xff00U) << 8) |
512 ((n & 0xff0000U) >> 8) |
513 ((n & 0xff000000U) >> 24) );
514}
515#define SWAP(n) swapu32(n)
516#else
517#define SWAP(n) (n)
518#endif
519
520/* This array contains the bytes used to pad the buffer to the next
521 64-byte boundary. (RFC 1321, 3.1: Step 1) */
522static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
523
524/* Initialize structure containing state of computation.
525 (RFC 1321, 3.3: Step 3) */
526static void md5_init_ctx(struct md5_ctx *ctx)
527{
528 ctx->A = 0x67452301;
529 ctx->B = 0xefcdab89;
530 ctx->C = 0x98badcfe;
531 ctx->D = 0x10325476;
532
533 ctx->total[0] = ctx->total[1] = 0;
534 ctx->buflen = 0;
535}
536
537/* Put result from CTX in first 16 bytes following RESBUF. The result
538 must be in little endian byte order.
539
540 IMPORTANT: On some systems it is required that RESBUF is correctly
541 aligned for a 32 bits value. */
542static void *md5_read_ctx(const struct md5_ctx *ctx, void *resbuf)
543{
544 ((md5_uint32 *) resbuf)[0] = SWAP(ctx->A);
545 ((md5_uint32 *) resbuf)[1] = SWAP(ctx->B);
546 ((md5_uint32 *) resbuf)[2] = SWAP(ctx->C);
547 ((md5_uint32 *) resbuf)[3] = SWAP(ctx->D);
548
549 return resbuf;
550}
551
552/* Process the remaining bytes in the internal buffer and the usual
553 prolog according to the standard and write the result to RESBUF.
554
555 IMPORTANT: On some systems it is required that RESBUF is correctly
556 aligned for a 32 bits value. */
557static void *md5_finish_ctx(struct md5_ctx *ctx, void *resbuf)
558{
559 /* Take yet unprocessed bytes into account. */
560 md5_uint32 bytes = ctx->buflen;
561 size_t pad;
562
563 /* Now count remaining bytes. */
564 ctx->total[0] += bytes;
565 if (ctx->total[0] < bytes)
566 ++ctx->total[1];
567
568 pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
569 memcpy(&ctx->buffer[bytes], fillbuf, pad);
570
571 /* Put the 64-bit file length in *bits* at the end of the buffer. */
572 *(md5_uint32 *) & ctx->buffer[bytes + pad] = SWAP(ctx->total[0] << 3);
573 *(md5_uint32 *) & ctx->buffer[bytes + pad + 4] =
574 SWAP((ctx->total[1] << 3) | (ctx->total[0] >> 29));
575
576 /* Process last bytes. */
577 md5_process_block(ctx->buffer, bytes + pad + 8, ctx);
578
579 return md5_read_ctx(ctx, resbuf);
580}
581
582/* Compute MD5 message digest for LEN bytes beginning at BUFFER. The
583 result is always in little endian byte order, so that a byte-wise
584 output yields to the wanted ASCII representation of the message
585 digest. */
586void *md5_buffer(const char *buffer, size_t len, void *resblock)
587{
588 struct md5_ctx ctx;
589
590 /* Initialize the computation context. */
591 md5_init_ctx(&ctx);
592
593 /* Process whole buffer but last len % 64 bytes. */
594 md5_process_bytes(buffer, len, &ctx);
595
596 /* Put result in desired memory area. */
597 return md5_finish_ctx(&ctx, resblock);
598}
599
600static void md5_process_bytes(const void *buffer, size_t len, struct md5_ctx *ctx)
601{
602 /* When we already have some bits in our internal buffer concatenate
603 both inputs first. */
604 if (ctx->buflen != 0) {
605 size_t left_over = ctx->buflen;
606 size_t add = 128 - left_over > len ? len : 128 - left_over;
607
608 memcpy(&ctx->buffer[left_over], buffer, add);
609 ctx->buflen += add;
610
611 if (left_over + add > 64) {
612 md5_process_block(ctx->buffer, (left_over + add) & ~63, ctx);
613 /* The regions in the following copy operation cannot overlap. */
614 memcpy(ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
615 (left_over + add) & 63);
616 ctx->buflen = (left_over + add) & 63;
617 }
618
619 buffer = (const char *) buffer + add;
620 len -= add;
621 }
622
623 /* Process available complete blocks. */
624 if (len > 64) {
625 md5_process_block(buffer, len & ~63, ctx);
626 buffer = (const char *) buffer + (len & ~63);
627 len &= 63;
628 }
629
630 /* Move remaining bytes in internal buffer. */
631 if (len > 0) {
632 memcpy(ctx->buffer, buffer, len);
633 ctx->buflen = len;
634 }
635}
636
637/* These are the four functions used in the four steps of the MD5 algorithm
638 and defined in the RFC 1321. The first function is a little bit optimized
639 (as found in Colin Plumbs public domain implementation). */
640/* #define FF(b, c, d) ((b & c) | (~b & d)) */
641#define FF(b, c, d) (d ^ (b & (c ^ d)))
642#define FG(b, c, d) FF (d, b, c)
643#define FH(b, c, d) (b ^ c ^ d)
644#define FI(b, c, d) (c ^ (b | ~d))
645
646/* Process LEN bytes of BUFFER, accumulating context into CTX.
647 It is assumed that LEN % 64 == 0. */
648static void md5_process_block(const void *buffer, size_t len, struct md5_ctx *ctx)
649{
650 md5_uint32 correct_words[16];
651 const md5_uint32 *words = buffer;
652 size_t nwords = len / sizeof(md5_uint32);
653 const md5_uint32 *endp = words + nwords;
654 md5_uint32 A = ctx->A;
655 md5_uint32 B = ctx->B;
656 md5_uint32 C = ctx->C;
657 md5_uint32 D = ctx->D;
658
659 /* First increment the byte count. RFC 1321 specifies the possible
660 length of the file up to 2^64 bits. Here we only compute the
661 number of bytes. Do a double word increment. */
662 ctx->total[0] += len;
663 if (ctx->total[0] < len)
664 ++ctx->total[1];
665
666 /* Process all bytes in the buffer with 64 bytes in each round of
667 the loop. */
668 while (words < endp) {
669 md5_uint32 *cwp = correct_words;
670 md5_uint32 A_save = A;
671 md5_uint32 B_save = B;
672 md5_uint32 C_save = C;
673 md5_uint32 D_save = D;
674
675 /* First round: using the given function, the context and a constant
676 the next context is computed. Because the algorithms processing
677 unit is a 32-bit word and it is determined to work on words in
678 little endian byte order we perhaps have to change the byte order
679 before the computation. To reduce the work for the next steps
680 we store the swapped words in the array CORRECT_WORDS. */
681
682#define OP(a, b, c, d, s, T) \
683 do \
684 { \
685 a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T; \
686 ++words; \
687 CYCLIC (a, s); \
688 a += b; \
689 } \
690 while (0)
691
692 /* It is unfortunate that C does not provide an operator for
693 cyclic rotation. Hope the C compiler is smart enough. */
694#define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s)))
695
696 /* Before we start, one word to the strange constants.
697 They are defined in RFC 1321 as
698
699 T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
700 */
701
702 /* Round 1. */
703 OP(A, B, C, D, 7, 0xd76aa478);
704 OP(D, A, B, C, 12, 0xe8c7b756);
705 OP(C, D, A, B, 17, 0x242070db);
706 OP(B, C, D, A, 22, 0xc1bdceee);
707 OP(A, B, C, D, 7, 0xf57c0faf);
708 OP(D, A, B, C, 12, 0x4787c62a);
709 OP(C, D, A, B, 17, 0xa8304613);
710 OP(B, C, D, A, 22, 0xfd469501);
711 OP(A, B, C, D, 7, 0x698098d8);
712 OP(D, A, B, C, 12, 0x8b44f7af);
713 OP(C, D, A, B, 17, 0xffff5bb1);
714 OP(B, C, D, A, 22, 0x895cd7be);
715 OP(A, B, C, D, 7, 0x6b901122);
716 OP(D, A, B, C, 12, 0xfd987193);
717 OP(C, D, A, B, 17, 0xa679438e);
718 OP(B, C, D, A, 22, 0x49b40821);
719 /* For the second to fourth round we have the possibly swapped words
720 in CORRECT_WORDS. Redefine the macro to take an additional first
721 argument specifying the function to use. */
722#undef OP
723#define OP(f, a, b, c, d, k, s, T) \
724 do \
725 { \
726 a += f (b, c, d) + correct_words[k] + T; \
727 CYCLIC (a, s); \
728 a += b; \
729 } \
730 while (0)
731
732 /* Round 2. */
733 OP(FG, A, B, C, D, 1, 5, 0xf61e2562);
734 OP(FG, D, A, B, C, 6, 9, 0xc040b340);
735 OP(FG, C, D, A, B, 11, 14, 0x265e5a51);
736 OP(FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
737 OP(FG, A, B, C, D, 5, 5, 0xd62f105d);
738 OP(FG, D, A, B, C, 10, 9, 0x02441453);
739 OP(FG, C, D, A, B, 15, 14, 0xd8a1e681);
740 OP(FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
741 OP(FG, A, B, C, D, 9, 5, 0x21e1cde6);
742 OP(FG, D, A, B, C, 14, 9, 0xc33707d6);
743 OP(FG, C, D, A, B, 3, 14, 0xf4d50d87);
744 OP(FG, B, C, D, A, 8, 20, 0x455a14ed);
745 OP(FG, A, B, C, D, 13, 5, 0xa9e3e905);
746 OP(FG, D, A, B, C, 2, 9, 0xfcefa3f8);
747 OP(FG, C, D, A, B, 7, 14, 0x676f02d9);
748 OP(FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
749
750 /* Round 3. */
751 OP(FH, A, B, C, D, 5, 4, 0xfffa3942);
752 OP(FH, D, A, B, C, 8, 11, 0x8771f681);
753 OP(FH, C, D, A, B, 11, 16, 0x6d9d6122);
754 OP(FH, B, C, D, A, 14, 23, 0xfde5380c);
755 OP(FH, A, B, C, D, 1, 4, 0xa4beea44);
756 OP(FH, D, A, B, C, 4, 11, 0x4bdecfa9);
757 OP(FH, C, D, A, B, 7, 16, 0xf6bb4b60);
758 OP(FH, B, C, D, A, 10, 23, 0xbebfbc70);
759 OP(FH, A, B, C, D, 13, 4, 0x289b7ec6);
760 OP(FH, D, A, B, C, 0, 11, 0xeaa127fa);
761 OP(FH, C, D, A, B, 3, 16, 0xd4ef3085);
762 OP(FH, B, C, D, A, 6, 23, 0x04881d05);
763 OP(FH, A, B, C, D, 9, 4, 0xd9d4d039);
764 OP(FH, D, A, B, C, 12, 11, 0xe6db99e5);
765 OP(FH, C, D, A, B, 15, 16, 0x1fa27cf8);
766 OP(FH, B, C, D, A, 2, 23, 0xc4ac5665);
767
768 /* Round 4. */
769 OP(FI, A, B, C, D, 0, 6, 0xf4292244);
770 OP(FI, D, A, B, C, 7, 10, 0x432aff97);
771 OP(FI, C, D, A, B, 14, 15, 0xab9423a7);
772 OP(FI, B, C, D, A, 5, 21, 0xfc93a039);
773 OP(FI, A, B, C, D, 12, 6, 0x655b59c3);
774 OP(FI, D, A, B, C, 3, 10, 0x8f0ccc92);
775 OP(FI, C, D, A, B, 10, 15, 0xffeff47d);
776 OP(FI, B, C, D, A, 1, 21, 0x85845dd1);
777 OP(FI, A, B, C, D, 8, 6, 0x6fa87e4f);
778 OP(FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
779 OP(FI, C, D, A, B, 6, 15, 0xa3014314);
780 OP(FI, B, C, D, A, 13, 21, 0x4e0811a1);
781 OP(FI, A, B, C, D, 4, 6, 0xf7537e82);
782 OP(FI, D, A, B, C, 11, 10, 0xbd3af235);
783 OP(FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
784 OP(FI, B, C, D, A, 9, 21, 0xeb86d391);
785
786 /* Add the starting values of the context. */
787 A += A_save;
788 B += B_save;
789 C += C_save;
790 D += D_save;
791 }
792
793 /* Put checksum in context given as argument. */
794 ctx->A = A;
795 ctx->B = B;
796 ctx->C = C;
797 ctx->D = D;
798}
799
800
801/*----------------------------------------------------------------------------
802 *--------end of md5.c
803 *----------------------------------------------------------------------------*/
804
805
806int md5Reset(register md5Param* p)
807{
808 unsigned int i;
809
810 md5_init_ctx(p);
811
812 for (i = 0; i < 16; i += 8)
813 {
814 p->buffer[i] = 0x00;
815 p->buffer[i+1] = 0x00;
816 p->buffer[i+2] = 0x00;
817 p->buffer[i+3] = 0x00;
818 p->buffer[i+4] = 0x00;
819 p->buffer[i+5] = 0x00;
820 p->buffer[i+6] = 0x00;
821 p->buffer[i+7] = 0x00;
822 }
823
824 return 0;
825}
826
827int md5Update(md5Param* p, const sh_byte* data, int size)
828{
829 md5_process_bytes(data, size, p);
830 return 0;
831}
832
833static void md5Finish(md5Param* p, void *resblock)
834{
835 (void) md5_finish_ctx(p, resblock);
836}
837
838int md5Digest(md5Param* p, md5_uint32* data)
839{
840 md5Finish(p, data);
841 (void) md5Reset(p);
842 return 0;
843}
844/*@+type@*/
845
846
847/* Compute MD5 message digest for bytes read from STREAM. The
848 resulting message digest number will be written into the 16 bytes
849 beginning at RESBLOCK. */
850static int md5_stream(char * filename, void *resblock,
851 UINT64 * Length, int timeout, SL_TICKET fd)
852{
853 /* Important: BLOCKSIZE must be a multiple of 64. */
854 static const int BLOCKSIZE = 8192;
855 struct md5_ctx ctx;
856 char * buffer = SH_ALLOC(8264); /* BLOCKSIZE + 72 AIX compiler chokes */
857 size_t sum;
858
859 char * tmp;
860 uid_t euid;
861 UINT64 bcount = 0;
862 sh_string * content;
863
864 unsigned long pages_read;
865#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
866 /*@-nestedextern@*/
867 extern long IO_Limit;
868 /*@+nestedextern@*/
869#endif
870
871 /* Initialize the computation context. */
872 (void) md5Reset (&ctx);
873
874 if (SL_ISERROR (fd))
875 {
876 TPT((0, FIL__, __LINE__, _("msg=<SL_ISERROR (%ld)>\n"), fd));
877 tmp = sh_util_safe_name (filename);
878 (void) sl_get_euid(&euid);
879 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, fd,
880 MSG_E_ACCESS, (long) euid, tmp);
881 SH_FREE(tmp);
882 *Length = 0;
883 SH_FREE(buffer);
884 return -1;
885 }
886
887 pages_read = 0;
888
889 content = sl_get_content(fd);
890
891 /* Iterate over full file contents. */
892 while (1) {
893 /* We read the file in blocks of BLOCKSIZE bytes. One call of the
894 computation function processes the whole buffer so that with the
895 next round of the loop another block can be read. */
896 off_t n;
897 sum = 0;
898
899 /* Read block. Take care for partial reads. */
900 do {
901
902 n = (off_t) sl_read_timeout (fd, buffer + sum,
903 (size_t) BLOCKSIZE - sum, timeout, SL_FALSE);
904
905 if (SL_ISERROR (n))
906 {
907 int error = errno;
908
909 if (sig_termfast == 1)
910 {
911 SH_FREE(buffer);
912 return -1;
913 }
914 TPT((0, FIL__ , __LINE__ , _("msg=<SL_ISERROR (%ld)>\n"), n));
915 tmp = sh_util_safe_name (filename);
916 if (n == SL_TIMEOUT)
917 {
918 if (timeout != 7) {
919 sh_error_handle (SH_ERR_ERR, FIL__, __LINE__, n, MSG_E_TIMEOUT,
920 timeout, tmp);
921 }
922 }
923 else
924 {
925 char errbuf[SH_ERRBUF_SIZE];
926 char errbuf2[SH_ERRBUF_SIZE];
927 sl_strlcpy(errbuf, sl_error_string(n), sizeof(errbuf));
928 sh_error_message(error, errbuf2, sizeof(errbuf2));
929 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, n,
930 MSG_E_READ, errbuf, errbuf2, tmp);
931 }
932 SH_FREE(tmp);
933 *Length = 0;
934 SH_FREE(buffer);
935 return -1;
936 }
937
938 if (content)
939 sh_string_cat_lchar(content, buffer, n);
940
941 bcount += n;
942
943 if (*Length != TIGER_NOLIM)
944 {
945 if (bcount > *Length)
946 {
947 n = n - (bcount - (*Length));
948 bcount = *Length;
949 n = (n < 0) ? 0 : n;
950 }
951 }
952
953 sum += n;
954 }
955 while (sum < (size_t) BLOCKSIZE
956 && n != 0);
957
958 ++pages_read;
959
960 /* If end of file is reached, end the loop. */
961 if (n == 0)
962 break;
963
964 /* Process buffer with BLOCKSIZE bytes. Note that
965 BLOCKSIZE % 64 == 0
966 */
967 md5_process_block(buffer, BLOCKSIZE, &ctx);
968 sh.statistics.bytes_hashed += BLOCKSIZE;
969
970#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
971 if ((IO_Limit) > 0 && (pages_read == 32)) /* check for I/O limit */
972 {
973 sh_unix_io_pause ();
974 pages_read = 0;
975 }
976 if (sig_termfast == 1)
977 {
978 *Length = 0;
979 SH_FREE(buffer);
980 return -1;
981 }
982#endif
983 }
984
985 /* Add the last bytes if necessary. */
986 if (sum > 0)
987 {
988 md5_process_bytes(buffer, sum, &ctx);
989 sh.statistics.bytes_hashed += BLOCKSIZE;
990 }
991
992 /* Construct result in desired memory. */
993 (void) md5Digest(&ctx, resblock);
994
995 *Length = bcount;
996 SH_FREE(buffer);
997 return 0;
998}
999
1000static
1001char * sh_tiger_md5_hash (char * filename, TigerType what,
1002 UINT64 * Length, int timeout, char * out, size_t len)
1003{
1004 int cnt;
1005 char outbuf[KEY_LEN+1];
1006 unsigned char md5buffer[16];
1007
1008 (void) md5_stream (filename, md5buffer, Length, timeout, what);
1009
1010 /*@-bufferoverflowhigh -usedef@*/
1011 for (cnt = 0; cnt < 16; ++cnt)
1012 sprintf (&outbuf[cnt*2], _("%02X"), /* known to fit */
1013 (unsigned int) md5buffer[cnt]);
1014 /*@+bufferoverflowhigh +usedef@*/
1015 for (cnt = 32; cnt < KEY_LEN; ++cnt)
1016 outbuf[cnt] = '0';
1017 outbuf[KEY_LEN] = '\0';
1018
1019 sl_strlcpy(out, outbuf, len);
1020 return out;
1021}
1022
1023/* USE_MD5 */
1024#endif
1025
1026/***************************************************************
1027 *
1028 * SHA1
1029 *
1030 ***************************************************************/
1031
1032#ifdef USE_SHA1
1033/*@-type@*/
1034
1035typedef unsigned char sha_word8;
1036typedef sh_word32 sha_word32;
1037
1038/* The SHA block size and message digest sizes, in bytes */
1039
1040#define SHA_DATASIZE 64
1041#define SHA_DATALEN 16
1042#define SHA_DIGESTSIZE 20
1043#define SHA_DIGESTLEN 5
1044/* The structure for storing SHA info */
1045
1046typedef struct sha_ctx {
1047 sha_word32 digest[SHA_DIGESTLEN]; /* Message digest */
1048 sha_word32 count_l, count_h; /* 64-bit block count */
1049 sha_word8 block[SHA_DATASIZE]; /* SHA data buffer */
1050 int index; /* index into buffer */
1051} SHA_CTX;
1052
1053static void sha_init(struct sha_ctx *ctx);
1054static void sha_update(struct sha_ctx *ctx, sha_word8 *buffer,sha_word32 len);
1055static void sha_final(struct sha_ctx *ctx);
1056static void sha_digest(struct sha_ctx *ctx, sha_word8 *s);
1057
1058
1059/* The SHA f()-functions. The f1 and f3 functions can be optimized to
1060 save one boolean operation each - thanks to Rich Schroeppel,
1061 rcs@cs.arizona.edu for discovering this */
1062
1063/*#define f1(x,y,z) ( ( x & y ) | ( ~x & z ) ) // Rounds 0-19 */
1064#define f1(x,y,z) ( z ^ ( x & ( y ^ z ) ) ) /* Rounds 0-19 */
1065#define f2(x,y,z) ( x ^ y ^ z ) /* Rounds 20-39 */
1066/*#define f3(x,y,z) ( ( x & y ) | ( x & z ) | ( y & z ) ) // Rounds 40-59 */
1067#define f3(x,y,z) ( ( x & y ) | ( z & ( x | y ) ) ) /* Rounds 40-59 */
1068#define f4(x,y,z) ( x ^ y ^ z ) /* Rounds 60-79 */
1069
1070/* The SHA Mysterious Constants */
1071
1072#define K1 0x5A827999L /* Rounds 0-19 */
1073#define K2 0x6ED9EBA1L /* Rounds 20-39 */
1074#define K3 0x8F1BBCDCL /* Rounds 40-59 */
1075#define K4 0xCA62C1D6L /* Rounds 60-79 */
1076
1077/* SHA initial values */
1078
1079#define h0init 0x67452301L
1080#define h1init 0xEFCDAB89L
1081#define h2init 0x98BADCFEL
1082#define h3init 0x10325476L
1083#define h4init 0xC3D2E1F0L
1084
1085/* 32-bit rotate left - kludged with shifts */
1086
1087#define ROTL(n,X) ( ( (X) << (n) ) | ( (X) >> ( 32 - (n) ) ) )
1088
1089/* The initial expanding function. The hash function is defined over an
1090 80-word expanded input array W, where the first 16 are copies of the input
1091 data, and the remaining 64 are defined by
1092
1093 W[ i ] = W[ i - 16 ] ^ W[ i - 14 ] ^ W[ i - 8 ] ^ W[ i - 3 ]
1094
1095 This implementation generates these values on the fly in a circular
1096 buffer - thanks to Colin Plumb, colin@nyx10.cs.du.edu for this
1097 optimization.
1098
1099 The updated SHA changes the expanding function by adding a rotate of 1
1100 bit. Thanks to Jim Gillogly, jim@rand.org, and an anonymous contributor
1101 for this information */
1102
1103#define expand(W,i) ( W[ i & 15 ] = \
1104 ROTL( 1, ( W[ i & 15 ] ^ W[ (i - 14) & 15 ] ^ \
1105 W[ (i - 8) & 15 ] ^ W[ (i - 3) & 15 ] ) ) )
1106
1107
1108/* The prototype SHA sub-round. The fundamental sub-round is:
1109
1110 a' = e + ROTL( 5, a ) + f( b, c, d ) + k + data;
1111 b' = a;
1112 c' = ROTL( 30, b );
1113 d' = c;
1114 e' = d;
1115
1116 but this is implemented by unrolling the loop 5 times and renaming the
1117 variables ( e, a, b, c, d ) = ( a', b', c', d', e' ) each iteration.
1118 This code is then replicated 20 times for each of the 4 functions, using
1119 the next 20 values from the W[] array each time */
1120
1121#define subRound(a, b, c, d, e, f, k, data) \
1122 ( e += ROTL( 5, a ) + f( b, c, d ) + k + data, b = ROTL( 30, b ) )
1123
1124/* Initialize the SHA values */
1125
1126static void sha_init(struct sha_ctx *ctx)
1127{
1128 /* Set the h-vars to their initial values */
1129 ctx->digest[ 0 ] = h0init;
1130 ctx->digest[ 1 ] = h1init;
1131 ctx->digest[ 2 ] = h2init;
1132 ctx->digest[ 3 ] = h3init;
1133 ctx->digest[ 4 ] = h4init;
1134
1135 /* Initialize bit count */
1136 ctx->count_l = ctx->count_h = 0;
1137
1138 /* Initialize buffer */
1139 ctx->index = 0;
1140}
1141
1142/* Perform the SHA transformation. Note that this code, like MD5, seems to
1143 break some optimizing compilers due to the complexity of the expressions
1144 and the size of the basic block. It may be necessary to split it into
1145 sections, e.g. based on the four subrounds
1146
1147 Note that this function destroys the data area */
1148
1149static void sha_transform(struct sha_ctx *ctx, sha_word32 *data )
1150{
1151 register sha_word32 A, B, C, D, E; /* Local vars */
1152
1153 /* Set up first buffer and local data buffer */
1154 A = ctx->digest[0];
1155 B = ctx->digest[1];
1156 C = ctx->digest[2];
1157 D = ctx->digest[3];
1158 E = ctx->digest[4];
1159
1160 /* Heavy mangling, in 4 sub-rounds of 20 interations each. */
1161 subRound( A, B, C, D, E, f1, K1, data[ 0] );
1162 subRound( E, A, B, C, D, f1, K1, data[ 1] );
1163 subRound( D, E, A, B, C, f1, K1, data[ 2] );
1164 subRound( C, D, E, A, B, f1, K1, data[ 3] );
1165 subRound( B, C, D, E, A, f1, K1, data[ 4] );
1166 subRound( A, B, C, D, E, f1, K1, data[ 5] );
1167 subRound( E, A, B, C, D, f1, K1, data[ 6] );
1168 subRound( D, E, A, B, C, f1, K1, data[ 7] );
1169 subRound( C, D, E, A, B, f1, K1, data[ 8] );
1170 subRound( B, C, D, E, A, f1, K1, data[ 9] );
1171 subRound( A, B, C, D, E, f1, K1, data[10] );
1172 subRound( E, A, B, C, D, f1, K1, data[11] );
1173 subRound( D, E, A, B, C, f1, K1, data[12] );
1174 subRound( C, D, E, A, B, f1, K1, data[13] );
1175 subRound( B, C, D, E, A, f1, K1, data[14] );
1176 subRound( A, B, C, D, E, f1, K1, data[15] );
1177 subRound( E, A, B, C, D, f1, K1, expand( data, 16 ) );
1178 subRound( D, E, A, B, C, f1, K1, expand( data, 17 ) );
1179 subRound( C, D, E, A, B, f1, K1, expand( data, 18 ) );
1180 subRound( B, C, D, E, A, f1, K1, expand( data, 19 ) );
1181
1182 subRound( A, B, C, D, E, f2, K2, expand( data, 20 ) );
1183 subRound( E, A, B, C, D, f2, K2, expand( data, 21 ) );
1184 subRound( D, E, A, B, C, f2, K2, expand( data, 22 ) );
1185 subRound( C, D, E, A, B, f2, K2, expand( data, 23 ) );
1186 subRound( B, C, D, E, A, f2, K2, expand( data, 24 ) );
1187 subRound( A, B, C, D, E, f2, K2, expand( data, 25 ) );
1188 subRound( E, A, B, C, D, f2, K2, expand( data, 26 ) );
1189 subRound( D, E, A, B, C, f2, K2, expand( data, 27 ) );
1190 subRound( C, D, E, A, B, f2, K2, expand( data, 28 ) );
1191 subRound( B, C, D, E, A, f2, K2, expand( data, 29 ) );
1192 subRound( A, B, C, D, E, f2, K2, expand( data, 30 ) );
1193 subRound( E, A, B, C, D, f2, K2, expand( data, 31 ) );
1194 subRound( D, E, A, B, C, f2, K2, expand( data, 32 ) );
1195 subRound( C, D, E, A, B, f2, K2, expand( data, 33 ) );
1196 subRound( B, C, D, E, A, f2, K2, expand( data, 34 ) );
1197 subRound( A, B, C, D, E, f2, K2, expand( data, 35 ) );
1198 subRound( E, A, B, C, D, f2, K2, expand( data, 36 ) );
1199 subRound( D, E, A, B, C, f2, K2, expand( data, 37 ) );
1200 subRound( C, D, E, A, B, f2, K2, expand( data, 38 ) );
1201 subRound( B, C, D, E, A, f2, K2, expand( data, 39 ) );
1202
1203 subRound( A, B, C, D, E, f3, K3, expand( data, 40 ) );
1204 subRound( E, A, B, C, D, f3, K3, expand( data, 41 ) );
1205 subRound( D, E, A, B, C, f3, K3, expand( data, 42 ) );
1206 subRound( C, D, E, A, B, f3, K3, expand( data, 43 ) );
1207 subRound( B, C, D, E, A, f3, K3, expand( data, 44 ) );
1208 subRound( A, B, C, D, E, f3, K3, expand( data, 45 ) );
1209 subRound( E, A, B, C, D, f3, K3, expand( data, 46 ) );
1210 subRound( D, E, A, B, C, f3, K3, expand( data, 47 ) );
1211 subRound( C, D, E, A, B, f3, K3, expand( data, 48 ) );
1212 subRound( B, C, D, E, A, f3, K3, expand( data, 49 ) );
1213 subRound( A, B, C, D, E, f3, K3, expand( data, 50 ) );
1214 subRound( E, A, B, C, D, f3, K3, expand( data, 51 ) );
1215 subRound( D, E, A, B, C, f3, K3, expand( data, 52 ) );
1216 subRound( C, D, E, A, B, f3, K3, expand( data, 53 ) );
1217 subRound( B, C, D, E, A, f3, K3, expand( data, 54 ) );
1218 subRound( A, B, C, D, E, f3, K3, expand( data, 55 ) );
1219 subRound( E, A, B, C, D, f3, K3, expand( data, 56 ) );
1220 subRound( D, E, A, B, C, f3, K3, expand( data, 57 ) );
1221 subRound( C, D, E, A, B, f3, K3, expand( data, 58 ) );
1222 subRound( B, C, D, E, A, f3, K3, expand( data, 59 ) );
1223
1224 subRound( A, B, C, D, E, f4, K4, expand( data, 60 ) );
1225 subRound( E, A, B, C, D, f4, K4, expand( data, 61 ) );
1226 subRound( D, E, A, B, C, f4, K4, expand( data, 62 ) );
1227 subRound( C, D, E, A, B, f4, K4, expand( data, 63 ) );
1228 subRound( B, C, D, E, A, f4, K4, expand( data, 64 ) );
1229 subRound( A, B, C, D, E, f4, K4, expand( data, 65 ) );
1230 subRound( E, A, B, C, D, f4, K4, expand( data, 66 ) );
1231 subRound( D, E, A, B, C, f4, K4, expand( data, 67 ) );
1232 subRound( C, D, E, A, B, f4, K4, expand( data, 68 ) );
1233 subRound( B, C, D, E, A, f4, K4, expand( data, 69 ) );
1234 subRound( A, B, C, D, E, f4, K4, expand( data, 70 ) );
1235 subRound( E, A, B, C, D, f4, K4, expand( data, 71 ) );
1236 subRound( D, E, A, B, C, f4, K4, expand( data, 72 ) );
1237 subRound( C, D, E, A, B, f4, K4, expand( data, 73 ) );
1238 subRound( B, C, D, E, A, f4, K4, expand( data, 74 ) );
1239 subRound( A, B, C, D, E, f4, K4, expand( data, 75 ) );
1240 subRound( E, A, B, C, D, f4, K4, expand( data, 76 ) );
1241 subRound( D, E, A, B, C, f4, K4, expand( data, 77 ) );
1242 subRound( C, D, E, A, B, f4, K4, expand( data, 78 ) );
1243 subRound( B, C, D, E, A, f4, K4, expand( data, 79 ) );
1244
1245 /* Build message digest */
1246 ctx->digest[0] += A;
1247 ctx->digest[1] += B;
1248 ctx->digest[2] += C;
1249 ctx->digest[3] += D;
1250 ctx->digest[4] += E;
1251}
1252
1253#if 1
1254
1255#ifndef EXTRACT_UCHAR
1256#define EXTRACT_UCHAR(p) (*(unsigned char *)(p))
1257#endif
1258
1259#define STRING2INT(s) ((((((EXTRACT_UCHAR(s) << 8) \
1260 | EXTRACT_UCHAR(s+1)) << 8) \
1261 | EXTRACT_UCHAR(s+2)) << 8) \
1262 | EXTRACT_UCHAR(s+3))
1263#else
1264sha_word32 STRING2INT(word8 *s)
1265{
1266 sha_word32 r;
1267 int i;
1268
1269 for (i = 0, r = 0; i < 4; i++, s++)
1270 r = (r << 8) | *s;
1271 return r;
1272}
1273#endif
1274
1275static void sha_block(struct sha_ctx *ctx, sha_word8 *block)
1276{
1277 sha_word32 data[SHA_DATALEN];
1278 int i;
1279
1280 /* Update block count */
1281 /*@-boolops@*/
1282 if (!++ctx->count_l)
1283 ++ctx->count_h;
1284 /*@+boolops@*/
1285
1286 /* Endian independent conversion */
1287 for (i = 0; i<SHA_DATALEN; i++, block += 4)
1288 data[i] = STRING2INT(block);
1289
1290 sha_transform(ctx, data);
1291}
1292
1293static void sha_update(struct sha_ctx *ctx, sha_word8 *buffer, sha_word32 len)
1294{
1295 if (ctx->index != 0)
1296 { /* Try to fill partial block */
1297 unsigned left = SHA_DATASIZE - ctx->index;
1298 if (len < left)
1299 {
1300 memmove(ctx->block + ctx->index, buffer, len);
1301 ctx->index += len;
1302 return; /* Finished */
1303 }
1304 else
1305 {
1306 memmove(ctx->block + ctx->index, buffer, left);
1307 sha_block(ctx, ctx->block);
1308 buffer += left;
1309 len -= left;
1310 }
1311 }
1312 while (len >= SHA_DATASIZE)
1313 {
1314 sha_block(ctx, buffer);
1315 buffer += SHA_DATASIZE;
1316 len -= SHA_DATASIZE;
1317 }
1318 /*@-predboolint@*/
1319 if ((ctx->index = len)) /* This assignment is intended */
1320 /*@+predboolint@*/
1321 /* Buffer leftovers */
1322 memmove(ctx->block, buffer, len);
1323}
1324
1325/* Final wrapup - pad to SHA_DATASIZE-byte boundary with the bit pattern
1326 1 0* (64-bit count of bits processed, MSB-first) */
1327
1328static void sha_final(struct sha_ctx *ctx)
1329{
1330 sha_word32 data[SHA_DATALEN];
1331 int i;
1332 int words;
1333
1334 i = ctx->index;
1335 /* Set the first char of padding to 0x80. This is safe since there is
1336 always at least one byte free */
1337 ctx->block[i++] = 0x80;
1338
1339 /* Fill rest of word */
1340 /*@-predboolint@*/
1341 for( ; i & 3; i++)
1342 ctx->block[i] = 0;
1343 /*@+predboolint@*/
1344
1345 /* i is now a multiple of the word size 4 */
1346 /*@-shiftimplementation@*/
1347 words = i >> 2;
1348 /*@+shiftimplementation@*/
1349 for (i = 0; i < words; i++)
1350 data[i] = STRING2INT(ctx->block + 4*i);
1351
1352 if (words > (SHA_DATALEN-2))
1353 { /* No room for length in this block. Process it and
1354 * pad with another one */
1355 for (i = words ; i < SHA_DATALEN; i++)
1356 data[i] = 0;
1357 sha_transform(ctx, data);
1358 for (i = 0; i < (SHA_DATALEN-2); i++)
1359 data[i] = 0;
1360 }
1361 else
1362 for (i = words ; i < SHA_DATALEN - 2; i++)
1363 data[i] = 0;
1364 /* Theres 512 = 2^9 bits in one block */
1365 /*@-shiftimplementation@*/
1366 data[SHA_DATALEN-2] = (ctx->count_h << 9) | (ctx->count_l >> 23);
1367 data[SHA_DATALEN-1] = (ctx->count_l << 9) | (ctx->index << 3);
1368 /*@+shiftimplementation@*/
1369 sha_transform(ctx, data);
1370}
1371
1372static void sha_digest(struct sha_ctx *ctx, sha_word8 *s)
1373{
1374 int i;
1375
1376 for (i = 0; i < SHA_DIGESTLEN; i++)
1377 {
1378 *s++ = ctx->digest[i] >> 24;
1379 *s++ = 0xff & (ctx->digest[i] >> 16);
1380 *s++ = 0xff & (ctx->digest[i] >> 8);
1381 *s++ = 0xff & ctx->digest[i];
1382 }
1383}
1384/*@+type@*/
1385
1386/* Compute SHA1 message digest for bytes read from STREAM. The
1387 resulting message digest number will be written into the 16 bytes
1388 beginning at RESBLOCK. */
1389static int sha1_stream(char * filename, void *resblock,
1390 UINT64 * Length, int timeout, SL_TICKET fd)
1391{
1392 /* Important: BLOCKSIZE must be a multiple of 64. */
1393 static const int BLOCKSIZE = 4096;
1394 struct sha_ctx ctx;
1395 char * buffer = SH_ALLOC(4168); /* BLOCKSIZE + 72 AIX compiler chokes */
1396 off_t sum = 0;
1397 char * tmp;
1398 uid_t euid;
1399 UINT64 bcount = 0;
1400 sh_string * content;
1401
1402 unsigned long pages_read;
1403#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1404 /*@-nestedextern@*/
1405 extern long IO_Limit;
1406 /*@+nestedextern@*/
1407#endif
1408
1409 /* Initialize the computation context. */
1410 (void) sha_init(&ctx);
1411
1412 if (SL_ISERROR (fd))
1413 {
1414 TPT((0, FIL__, __LINE__, _("msg=<SL_ISERROR (%ld)>\n"), fd));
1415 tmp = sh_util_safe_name (filename);
1416 (void) sl_get_euid(&euid);
1417 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, fd,
1418 MSG_E_ACCESS, (long) euid, tmp);
1419 SH_FREE(tmp);
1420 *Length = 0;
1421 SH_FREE(buffer);
1422 return -1;
1423 }
1424
1425 /* Iterate over full file contents. */
1426
1427 pages_read = 0;
1428
1429 content = sl_get_content(fd);
1430
1431 while (1 == 1) {
1432 /* We read the file in blocks of BLOCKSIZE bytes. One call of the
1433 computation function processes the whole buffer so that with the
1434 next round of the loop another block can be read. */
1435 off_t n;
1436 sum = 0;
1437
1438 /* Read block. Take care for partial reads. */
1439 do {
1440 n = (off_t) sl_read_timeout(fd, buffer + sum,
1441 (size_t) BLOCKSIZE - sum, timeout, SL_FALSE);
1442
1443 if (SL_ISERROR (n))
1444 {
1445 int error = errno;
1446
1447 if (sig_termfast == 1)
1448 {
1449 SH_FREE(buffer);
1450 return -1;
1451 }
1452
1453 TPT((0, FIL__ , __LINE__ , _("msg=<SL_ISERROR (%ld)>\n"), n));
1454 tmp = sh_util_safe_name (filename);
1455 if (n == SL_TIMEOUT)
1456 {
1457 if (timeout != 7) {
1458 sh_error_handle (SH_ERR_ERR, FIL__, __LINE__, n, MSG_E_TIMEOUT,
1459 timeout, tmp);
1460 }
1461 }
1462 else
1463 {
1464 char errbuf[SH_ERRBUF_SIZE];
1465 char errbuf2[SH_ERRBUF_SIZE];
1466 sl_strlcpy(errbuf, sl_error_string(n), sizeof(errbuf));
1467 sh_error_message(error, errbuf2, sizeof(errbuf2));
1468 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, n,
1469 MSG_E_READ, errbuf, errbuf2, tmp);
1470 }
1471 SH_FREE(tmp);
1472 *Length = 0;
1473 SH_FREE(buffer);
1474 return -1;
1475 }
1476
1477 if (content)
1478 sh_string_cat_lchar(content, buffer, n);
1479
1480 bcount += n;
1481
1482 if (*Length != TIGER_NOLIM)
1483 {
1484 if (bcount > *Length)
1485 {
1486 n = n - (bcount - (*Length));
1487 bcount = *Length;
1488 n = (n < 0) ? 0 : n;
1489 }
1490 }
1491
1492 sum += n;
1493 }
1494 while (sum < (off_t)BLOCKSIZE
1495 && n != 0);
1496
1497 ++pages_read;
1498
1499 /* If end of file is reached, end the loop. */
1500 if (n == 0)
1501 break;
1502
1503 /* Process buffer with BLOCKSIZE bytes. Note that
1504 BLOCKSIZE % 64 == 0
1505 */
1506 sha_update(&ctx, (sha_word8*) buffer, (sha_word32) BLOCKSIZE);
1507 sh.statistics.bytes_hashed += BLOCKSIZE;
1508
1509#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1510 if ((IO_Limit) > 0 && (pages_read == 32)) /* check for I/O limit */
1511 {
1512 sh_unix_io_pause ();
1513 pages_read = 0;
1514 }
1515 if (sig_termfast == 1)
1516 {
1517 *Length = 0;
1518 SH_FREE(buffer);
1519 return -1;
1520 }
1521#endif
1522
1523 }
1524
1525 /* Add the last bytes if necessary. */
1526 if (sum > 0)
1527 {
1528 sha_update(&ctx, (sha_word8*) buffer, (sha_word32) sum);
1529 sh.statistics.bytes_hashed += sum;
1530 }
1531
1532 sha_final (&ctx);
1533
1534 /* Construct result in desired memory. */
1535 sha_digest (&ctx, resblock);
1536 *Length = bcount;
1537 SH_FREE(buffer);
1538 return 0;
1539}
1540
1541
1542static char * sh_tiger_sha1_hash (char * filename, TigerType what,
1543 UINT64 * Length, int timeout,
1544 char * out, size_t len)
1545{
1546 int cnt;
1547 char outbuf[KEY_LEN+1];
1548 unsigned char sha1buffer[20];
1549
1550 (void) sha1_stream (filename, sha1buffer, Length, timeout, what);
1551
1552 /*@-bufferoverflowhigh -usedef@*/
1553 for (cnt = 0; cnt < 20; ++cnt)
1554 sprintf (&outbuf[cnt*2], _("%02X"), /* known to fit */
1555 (unsigned int) sha1buffer[cnt]);
1556 /*@+bufferoverflowhigh +usedef@*/
1557 for (cnt = 40; cnt < KEY_LEN; ++cnt)
1558 outbuf[cnt] = '0';
1559 outbuf[KEY_LEN] = '\0';
1560
1561 sl_strlcpy(out, outbuf, len);
1562 return out;
1563}
1564
1565/* ifdef USE_SHA1 */
1566#endif
1567
1568static int hash_type = 0;
1569
1570int sh_tiger_get_hashtype ()
1571{
1572 return hash_type;
1573}
1574
1575int sh_tiger_hashtype (const char * c)
1576{
1577 SL_ENTER( _("sh_tiger_hashtype"));
1578
1579 if (!c)
1580 {
1581 SL_RETURN( -1, _("sh_tiger_hashtype"));
1582 }
1583
1584 if (0 == strcmp(c, _("TIGER192")))
1585 hash_type = 0;
1586#ifdef USE_SHA1
1587 else if (0 == strcmp(c, _("SHA1")))
1588 hash_type = 1;
1589#endif
1590#ifdef USE_MD5
1591 else if (0 == strcmp(c, _("MD5")))
1592 hash_type = 2;
1593#endif
1594 else
1595 {
1596 SL_RETURN( -1, _("sh_tiger_hashtype"));
1597 }
1598 SL_RETURN( 0, _("sh_tiger_hashtype"));
1599}
1600
1601static char * sh_tiger_hash_internal (const char * filename, TigerType what,
1602 UINT64 * Length, int timeout,
1603 char * out, size_t len);
1604
1605char * sh_tiger_hash (const char * filename, TigerType what,
1606 UINT64 Length, char * out, size_t len)
1607{
1608 UINT64 local_length = Length;
1609 char * retval = sh_tiger_hash_internal (filename, what, &local_length, 0, out,len);
1610 return retval;
1611}
1612
1613char * sh_tiger_generic_hash (char * filename, TigerType what,
1614 UINT64 * Length, int timeout,
1615 char * out, size_t len)
1616{
1617#ifdef USE_SHA1
1618 if (hash_type == 1)
1619 return sh_tiger_sha1_hash (filename, what, Length, timeout, out, len);
1620#endif
1621#ifdef USE_MD5
1622 if (hash_type == 2)
1623 return sh_tiger_md5_hash (filename, what, Length, timeout, out, len);
1624#endif
1625 return sh_tiger_hash_internal (filename, what, Length, timeout, out, len);
1626}
1627
1628/*
1629 * ------- end new --------- */
1630
1631static char * sh_tiger_hash_internal (const char * filename, TigerType what,
1632 UINT64 * Length, int timeout,
1633 char * out, size_t len)
1634{
1635#if defined(TIGER_64_BIT)
1636 word64 res[3];
1637#else
1638 sh_word32 res[6];
1639#endif
1640
1641 SL_ENTER( _("sh_tiger_hash_internal"));
1642
1643 SH_VALIDATE_GE(len, (KEY_LEN+1));
1644
1645 if (NULL != sh_tiger_hash_val (filename, what, Length, timeout, res))
1646 {
1647#if defined(TIGER_64_BIT)
1648 sl_snprintf(out, len,
1649 MYFORMAT,
1650 (sh_word32)(res[0]>>32),
1651 (sh_word32)(res[0]),
1652 (sh_word32)(res[1]>>32),
1653 (sh_word32)(res[1]),
1654 (sh_word32)(res[2]>>32),
1655 (sh_word32)(res[2]) );
1656#else
1657 sl_snprintf(out, len,
1658 MYFORMAT,
1659 (sh_word32)(res[1]),
1660 (sh_word32)(res[0]),
1661 (sh_word32)(res[3]),
1662 (sh_word32)(res[2]),
1663 (sh_word32)(res[5]),
1664 (sh_word32)(res[4]) );
1665#endif
1666 out[len-1] = '\0';
1667 SL_RETURN( out, _("sh_tiger_hash_internal"));
1668
1669 }
1670
1671 SL_RETURN( SH_KEY_NULL, _("sh_tiger_hash_internal"));
1672}
1673
1674char * sh_tiger_hash_gpg (const char * filename, TigerType what,
1675 UINT64 Length)
1676{
1677 size_t len;
1678 char * out;
1679 char outhash[48+6+1];
1680#if defined(TIGER_64_BIT)
1681 word64 res[3];
1682#else
1683 sh_word32 res[6];
1684#endif
1685 UINT64 local_length = Length;
1686
1687 SL_ENTER(_("sh_tiger_hash_gpg"));
1688
1689 if (NULL != sh_tiger_hash_val (filename, what, &local_length, 0, res))
1690 {
1691#if defined(TIGER_64_BIT)
1692 sl_snprintf(outhash,
1693 sizeof(outhash),
1694 GPGFORMAT,
1695 (sh_word32)(res[0]>>32),
1696 (sh_word32)(res[0]),
1697 (sh_word32)(res[1]>>32),
1698 (sh_word32)(res[1]),
1699 (sh_word32)(res[2]>>32),
1700 (sh_word32)(res[2]) );
1701#else
1702 sl_snprintf(outhash,
1703 sizeof(outhash),
1704 GPGFORMAT,
1705 (sh_word32)(res[1]),
1706 (sh_word32)(res[0]),
1707 (sh_word32)(res[3]),
1708 (sh_word32)(res[2]),
1709 (sh_word32)(res[5]),
1710 (sh_word32)(res[4]) );
1711#endif
1712 outhash[sizeof(outhash)-1] = '\0';
1713 }
1714 else
1715 {
1716 sl_strlcpy(outhash,
1717 _("00000000 00000000 00000000 00000000 00000000 00000000"),
1718 sizeof(outhash));
1719 }
1720
1721 if (what == TIGER_FILE && sl_ok_adds(sl_strlen (filename), (2 + 48 + 6)))
1722 len = sl_strlen (filename) + 2 + 48 + 6;
1723 else
1724 len = 48 + 6;
1725
1726 out = SH_ALLOC(len + 1);
1727
1728 if (what == TIGER_FILE)
1729 {
1730 (void) sl_strlcpy (out, filename, len+1);
1731 (void) sl_strlcat (out, _(": "), len+1);
1732 (void) sl_strlcat (out, outhash, len+1);
1733 }
1734 else
1735 {
1736 (void) sl_strlcpy (out, outhash, len+1);
1737 }
1738 SL_RETURN( out, _("sh_tiger_hash_gpg"));
1739}
1740
1741
1742UINT32 * sh_tiger_hash_uint32 (char * filename,
1743 TigerType what,
1744 UINT64 Length, UINT32 * out, size_t len)
1745{
1746#if defined(TIGER_64_BIT)
1747 word64 res[3];
1748#else
1749 sh_word32 res[6];
1750#endif
1751 UINT64 local_length = Length;
1752
1753 SL_ENTER(_("sh_tiger_hash_uint32"));
1754
1755 SH_VALIDATE_GE(len, 6);
1756
1757 out[0] = 0; out[1] = 0; out[2] = 0;
1758 out[3] = 0; out[4] = 0; out[5] = 0;
1759
1760 if (NULL != sh_tiger_hash_val (filename, what, &local_length, 0, res))
1761 {
1762#if defined(TIGER_64_BIT)
1763 out[0] = (UINT32)(res[0]>>32);
1764 out[1] = (UINT32)(res[0]);
1765 out[2] = (UINT32)(res[1]>>32);
1766 out[3] = (UINT32)(res[1]);
1767 out[4] = (UINT32)(res[2]>>32);
1768 out[5] = (UINT32)(res[2]);
1769#else
1770 out[0] = (UINT32)(res[1]);
1771 out[1] = (UINT32)(res[0]);
1772 out[2] = (UINT32)(res[3]);
1773 out[3] = (UINT32)(res[2]);
1774 out[4] = (UINT32)(res[5]);
1775 out[5] = (UINT32)(res[4]);
1776#endif
1777 }
1778
1779 SL_RETURN(out, _("sh_tiger_hash_uint32"));
1780}
1781
1782
1783
1784
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