source: trunk/src/sh_tiger0.c@ 107

Last change on this file since 107 was 107, checked in by rainer, 17 years ago

Fix incorrect handling of files with zero size in GrowingLogFiles.
File size: 46.4 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
27#define PRIV_MAX 32768
28
29#if defined(TIGER_64_BIT)
30#if defined(HAVE_LONG_64)
31typedef unsigned long int word64;
32#elif defined(HAVE_LONG_LONG_64)
33typedef unsigned long long int word64;
34#else
35#error No 64 bit type found !
36#endif
37#endif
38
39#if defined(HAVE_INT_32)
40typedef unsigned int sh_word32;
41#define MYFORMAT (_("%08X%08X%08X%08X%08X%08X"))
42#define GPGFORMAT (_("%08X %08X %08X %08X %08X %08X"))
43#elif defined(HAVE_LONG_32)
44typedef unsigned long sh_word32;
45#define MYFORMAT (_("%08lX%08lX%08lX%08lX%08lX%08lX"))
46#define GPGFORMAT (_("%08lX %08lX %08lX %08lX %08lX %08lX"))
47#elif defined(HAVE_SHORT_32)
48typedef unsigned short sh_word32;
49#define MYFORMAT (_("%08X%08X%08X%08X%08X%08X"))
50#define GPGFORMAT (_("%08X %08X %08X %08X %08X %08X"))
51#else
52#error No 32 bit type found !
53#endif
54
55typedef unsigned char sh_byte;
56
57#define SH_KEY_NULL _("000000000000000000000000000000000000000000000000")
58
59#undef FIL__
60#define FIL__ _("sh_tiger0.c")
61
62#if defined(TIGER_64_BIT)
63
64void tiger_t(word64 *str, word64 length, word64 * res);
65void tiger(word64 *str, word64 length, word64 * res);
66
67#ifdef TIGER_DBG
68static void tiger_dbg(word64 res[3], int step,
69 unsigned long nblocks, unsigned long ncount)
70{
71 return;
72}
73#endif
74#else
75void tiger(sh_word32 *str, sh_word32 length, sh_word32 * res);
76void tiger_t(sh_word32 *str, sh_word32 length, sh_word32 * res);
77
78#ifdef TIGER_DBG
79static
80void tiger_dbg(sh_word32 res[6], int step,
81 unsigned long nblocks, unsigned long ncount)
82{
83 fprintf(stderr,
84 _("ST %d BLK %2ld CT %2ld %08lX %08lX %08lX %08lX %08lX %08lX\n"),
85 step,
86 nblocks,
87 ncount,
88 (sh_word32)(res[1]),
89 (sh_word32)(res[0]),
90 (sh_word32)(res[3]),
91 (sh_word32)(res[2]),
92 (sh_word32)(res[5]),
93 (sh_word32)(res[4]) );
94}
95#endif
96#endif
97
98/* this is the wrapper function -- not part of the tiger reference
99 * implementation
100 */
101SL_TICKET tiger_fd = (-1);
102
103static sh_byte buffer[PRIV_MAX + 72];
104
105#if defined(TIGER_64_BIT)
106static
107word64 * sh_tiger_hash_val (const char * filename, TigerType what,
108 UINT64 Length, int timeout)
109#else
110static
111sh_word32 * sh_tiger_hash_val (const char * filename, TigerType what,
112 UINT64 Length, int timeout)
113#endif
114{
115 SL_TICKET fd;
116 int i, j, tt;
117 int count = 0;
118 int blk;
119 char * tmp;
120 sh_byte * bptr;
121 sh_byte bbuf[64];
122 UINT64 bcount = 0;
123
124 static int lockflag = SL_FALSE;
125
126 unsigned long pages_read;
127 uid_t euid;
128
129 unsigned long ncount = 0, nblocks = 0;
130 unsigned long t, msb, lsb;
131
132#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
133 /*@-nestedextern@*/
134 extern long IO_Limit;
135 /*@+nestedextern@*/
136#endif
137
138#if defined(TIGER_64_BIT)
139#define TIGER_CAST (word64*)
140 static word64 res[3];
141 res[0]= (word64) 0x0123456789ABCDEFLL;
142 res[1]= (word64) 0xFEDCBA9876543210LL;
143 res[2]= (word64) 0xF096A5B4C3B2E187LL;
144#else
145#define TIGER_CAST (sh_word32*)
146 static sh_word32 res[6];
147 res[0]= (sh_word32) 0x89ABCDEF;
148 res[1]= (sh_word32) 0x01234567;
149 res[2]= (sh_word32) 0x76543210;
150 res[3]= (sh_word32) 0xFEDCBA98;
151 res[4]= (sh_word32) 0xC3B2E187;
152 res[5]= (sh_word32) 0xF096A5B4;
153#endif
154
155 SL_ENTER(_("sh_tiger_hash_val"));
156
157 if (what == TIGER_FD || what == TIGER_FILE)
158 {
159 if (what == TIGER_FD)
160 {
161 fd = tiger_fd;
162 TPT((0,FIL__, __LINE__, _("msg=<TIGER_FD>, fd=<%ld>\n"), tiger_fd));
163 }
164 else
165 {
166 TPT((0,FIL__, __LINE__, _("msg=<TIGER_FILE>, path=<%s>\n"),
167 (filename == NULL ? _("(null)") : filename) ));
168 fd = sl_open_read (filename, SL_YESPRIV);
169 }
170
171 if (SL_ISERROR (fd))
172 {
173 TPT((0, FIL__, __LINE__, _("msg=<SL_ISERROR (%ld)>\n"), tiger_fd));
174 tmp = sh_util_safe_name (filename);
175 (void) sl_get_euid(&euid);
176 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, (int)fd,
177 MSG_E_ACCESS, (long) euid, tmp);
178 SH_FREE(tmp);
179 SL_RETURN( NULL, _("sh_tiger_hash_val"));
180 }
181
182#if defined(HAVE_MLOCK) && !defined(HAVE_BROKEN_MLOCK)
183 if ((lockflag == SL_FALSE) && (skey->mlock_failed == SL_FALSE))
184 {
185 lockflag = SL_TRUE;
186 if ( (-1) == sh_unix_mlock(FIL__, __LINE__,
187 (char *)buffer,
188 (PRIV_MAX)*sizeof(sh_byte)))
189 skey->mlock_failed = SL_TRUE;
190 }
191#else
192 if (lockflag == SL_FALSE && skey->mlock_failed == SL_FALSE)
193 {
194 lockflag = SL_TRUE;
195 skey->mlock_failed = SL_TRUE;
196 }
197#endif
198
199#ifdef TIGER_DBG
200 tiger_dbg (res, 0, nblocks, ncount);
201#endif
202
203 pages_read = 0;
204
205 while (1)
206 {
207 if (timeout > 0)
208 count = sl_read_timeout (fd, buffer, PRIV_MAX, timeout);
209 else
210 count = sl_read (fd, buffer, PRIV_MAX);
211
212 ++pages_read;
213
214 if (SL_ISERROR (count))
215 {
216 if (sig_termfast == 1) {
217 SL_RETURN( NULL, _("sh_tiger_hash_val"));
218 }
219 TPT((0, FIL__ , __LINE__ , _("msg=<SL_ISERROR (%ld)>\n"), count));
220 tmp = sh_util_safe_name (filename);
221 if (count == SL_TIMEOUT)
222 {
223 if (timeout != 7) {
224 sh_error_handle (SH_ERR_ERR, FIL__, __LINE__, count,
225 MSG_E_TIMEOUT, timeout, tmp);
226 }
227 }
228 else
229 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__,
230 count, MSG_E_READ, tmp);
231 SH_FREE(tmp);
232 memset (bbuf, 0, 64);
233 memset (buffer, 0, PRIV_MAX);
234
235 SL_RETURN( NULL, _("sh_tiger_hash_val"));
236 }
237
238 if (Length != TIGER_NOLIM)
239 {
240 bcount += count;
241 if (bcount > Length)
242 count = count - (bcount - Length);
243 count = (count < 0) ? 0 : count;
244 }
245
246 blk = (count / 64); /* number of 64-byte words */
247
248 /* nblocks += blk; number of 64-byte words
249 * count cannot be negative here, see 'if (SL_ISERROR (count))'
250 */
251 tt = blk*64;
252
253 ncount = (unsigned long) (count - tt);
254
255 nblocks += blk;
256 sh.statistics.bytes_hashed += tt;
257
258 bptr = buffer; tt = 0;
259 for (i = 0; i < blk; ++i)
260 {
261 bptr = &buffer[tt]; tt += 64;
262
263 tiger_t(TIGER_CAST bptr, 64, res);
264
265#ifdef TIGER_DBG
266 tiger_dbg (res, 3, nblocks, ncount);
267#endif
268 }
269
270 if (blk < (PRIV_MAX / 64)) /* this must be (PRIV_MAX / 64) */
271 break;
272
273#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
274 if (sig_termfast == 1)
275 {
276 memset (bbuf, 0, 64);
277 memset (buffer, 0, PRIV_MAX);
278
279 SL_RETURN( NULL, _("sh_tiger_hash_val"));
280 }
281 if ((IO_Limit) > 0 && (pages_read == 32)) /* check for I/O limit */
282 {
283 sh_unix_io_pause ();
284 pages_read = 0;
285 }
286#endif
287 }
288
289 TPT((0, FIL__, __LINE__ , _("msg=<Last block.>\n")));
290
291 /* copy incomplete block
292 */
293 j = 0;
294 for (i = 0; i < 64; i += 4)
295 {
296 bbuf[i] = (sh_byte) '\0';
297 bbuf[i+1] = (sh_byte) '\0';
298 bbuf[i+2] = (sh_byte) '\0';
299 bbuf[i+3] = (sh_byte) '\0';
300 }
301 for (i = (count/64) * 64; i < count; ++i)
302 /*@-usedef@*/bbuf[j++] = buffer[i];/*@+usedef@*/
303
304#ifdef TIGER_DBG
305 tiger_dbg (res, 5, nblocks, ncount);
306#endif
307
308 msb = 0;
309 t = nblocks;
310 if( (lsb = t << 6) < t )
311 msb++;
312 msb += t >> 26;
313 t = lsb;
314 if( (lsb = t + ncount) < t )
315 msb++;
316 t = lsb;
317 if( (lsb = t << 3) < t )
318 msb++;
319 msb += t >> 29;
320
321 if( j < 56 )
322 {
323 bbuf[j++] = (sh_byte) 0x01; ++ncount;
324 while( j < 56 )
325 { bbuf[j++] = (sh_byte) 0; ++ncount; }
326 }
327 else
328 {
329 bbuf[j++] = (sh_byte) 0x01;
330 while( j < 64 )
331 bbuf[j++] = (sh_byte) 0;
332 tiger_t(TIGER_CAST bbuf, 64, res);
333 sh.statistics.bytes_hashed += 64;
334 ++nblocks; ncount = 0;
335 sl_memset(bbuf, 0, 56 );
336 }
337
338#ifdef TIGER_DBG
339 tiger_dbg (res, 6, nblocks, ncount);
340#endif
341
342 bbuf[56] = (sh_byte) (lsb );
343 bbuf[57] = (sh_byte) (lsb >> 8);
344 bbuf[58] = (sh_byte) (lsb >> 16);
345 bbuf[59] = (sh_byte) (lsb >> 24);
346 bbuf[60] = (sh_byte) (msb );
347 bbuf[61] = (sh_byte) (msb >> 8);
348 bbuf[62] = (sh_byte) (msb >> 16);
349 bbuf[63] = (sh_byte) (msb >> 24);
350
351 tiger_t(TIGER_CAST bbuf, 64, res);
352 sh.statistics.bytes_hashed += 64;
353
354#ifdef TIGER_DBG
355 tiger_dbg (res, 7, nblocks, ncount);
356#endif
357
358 sl_memset (bbuf, '\0', sizeof(bbuf));
359 sl_memset (buffer, '\0', sizeof(buffer));
360
361 if (what == TIGER_FILE)
362 (void) sl_close (fd);
363 else
364 tiger_fd = (-1);
365
366 SL_RETURN( res, _("sh_tiger_hash_val"));
367 }
368
369 if (what == TIGER_DATA && filename != NULL)
370 {
371 tiger(TIGER_CAST filename, (sh_word32) Length, res);
372 SL_RETURN(res, _("sh_tiger_hash_val"));
373 }
374 SL_RETURN( NULL, _("sh_tiger_hash_val"));
375}
376
377/* Thu Oct 18 18:53:33 CEST 2001
378 */
379
380#ifdef USE_MD5
381/*@-type@*/
382/* md5.c - Functions to compute MD5 message digest of files or memory blocks
383 * according to the definition of MD5 in RFC 1321 from April 1992.
384 * Copyright (C) 1995, 1996 Free Software Foundation, Inc.
385 *
386 * NOTE: The canonical source of this file is maintained with the GNU C
387 * Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu.
388 *
389 * This program is free software; you can redistribute it and/or modify it
390 * under the terms of the GNU General Public License as published by the
391 * Free Software Foundation; either version 2, or (at your option) any
392 * later version.
393 *
394 * This program is distributed in the hope that it will be useful,
395 * but WITHOUT ANY WARRANTY; without even the implied warranty of
396 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
397 * GNU General Public License for more details.
398 *
399 * You should have received a copy of the GNU General Public License
400 * along with this program; if not, write to the Free Software Foundation,
401 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
402 */
403
404/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */
405
406/* Hacked to work with samhain by R. Wichmann */
407
408typedef UINT32 md5_uint32;
409
410
411/* Structure to save state of computation between the single steps. */
412typedef struct md5_ctx
413{
414 md5_uint32 A;
415 md5_uint32 B;
416 md5_uint32 C;
417 md5_uint32 D;
418
419 md5_uint32 total[2];
420 md5_uint32 buflen;
421 char buffer[128];
422} md5Param;
423
424/*
425 * The following three functions are build up the low level used in
426 * the functions `md5_stream' and `md5_buffer'.
427 */
428
429/* Initialize structure containing state of computation.
430 (RFC 1321, 3.3: Step 3) */
431static void md5_init_ctx (struct md5_ctx *ctx);
432
433/* Starting with the result of former calls of this function (or the
434 initialization function update the context for the next LEN bytes
435 starting at BUFFER.
436 It is necessary that LEN is a multiple of 64!!! */
437static void md5_process_block (const void *buffer, size_t len,
438 struct md5_ctx *ctx);
439
440/* Starting with the result of former calls of this function (or the
441 initialization function update the context for the next LEN bytes
442 starting at BUFFER.
443 It is NOT required that LEN is a multiple of 64. */
444static void md5_process_bytes (const void *buffer, size_t len,
445 struct md5_ctx *ctx);
446
447/* Process the remaining bytes in the buffer and put result from CTX
448 in first 16 bytes following RESBUF. The result is always in little
449 endian byte order, so that a byte-wise output yields to the wanted
450 ASCII representation of the message digest.
451
452 IMPORTANT: On some systems it is required that RESBUF is correctly
453 aligned for a 32 bits value. */
454static void *md5_finish_ctx (struct md5_ctx *ctx, void *resbuf);
455
456
457/* Put result from CTX in first 16 bytes following RESBUF. The result is
458 always in little endian byte order, so that a byte-wise output yields
459 to the wanted ASCII representation of the message digest.
460
461 IMPORTANT: On some systems it is required that RESBUF is correctly
462 aligned for a 32 bits value. */
463static void *md5_read_ctx (const struct md5_ctx *ctx, void *resbuf);
464
465#if WORDS_BIGENDIAN
466static md5_uint32 swapu32(md5_uint32 n)
467{
468 return ( ((n & 0xffU) << 24) |
469 ((n & 0xff00U) << 8) |
470 ((n & 0xff0000U) >> 8) |
471 ((n & 0xff000000U) >> 24) );
472}
473#define SWAP(n) swapu32(n)
474#else
475#define SWAP(n) (n)
476#endif
477
478/* This array contains the bytes used to pad the buffer to the next
479 64-byte boundary. (RFC 1321, 3.1: Step 1) */
480static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
481
482/* Initialize structure containing state of computation.
483 (RFC 1321, 3.3: Step 3) */
484static void md5_init_ctx(struct md5_ctx *ctx)
485{
486 ctx->A = 0x67452301;
487 ctx->B = 0xefcdab89;
488 ctx->C = 0x98badcfe;
489 ctx->D = 0x10325476;
490
491 ctx->total[0] = ctx->total[1] = 0;
492 ctx->buflen = 0;
493}
494
495/* Put result from CTX in first 16 bytes following RESBUF. The result
496 must be in little endian byte order.
497
498 IMPORTANT: On some systems it is required that RESBUF is correctly
499 aligned for a 32 bits value. */
500static void *md5_read_ctx(const struct md5_ctx *ctx, void *resbuf)
501{
502 ((md5_uint32 *) resbuf)[0] = SWAP(ctx->A);
503 ((md5_uint32 *) resbuf)[1] = SWAP(ctx->B);
504 ((md5_uint32 *) resbuf)[2] = SWAP(ctx->C);
505 ((md5_uint32 *) resbuf)[3] = SWAP(ctx->D);
506
507 return resbuf;
508}
509
510/* Process the remaining bytes in the internal buffer and the usual
511 prolog according to the standard and write the result to RESBUF.
512
513 IMPORTANT: On some systems it is required that RESBUF is correctly
514 aligned for a 32 bits value. */
515static void *md5_finish_ctx(struct md5_ctx *ctx, void *resbuf)
516{
517 /* Take yet unprocessed bytes into account. */
518 md5_uint32 bytes = ctx->buflen;
519 size_t pad;
520
521 /* Now count remaining bytes. */
522 ctx->total[0] += bytes;
523 if (ctx->total[0] < bytes)
524 ++ctx->total[1];
525
526 pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
527 memcpy(&ctx->buffer[bytes], fillbuf, pad);
528
529 /* Put the 64-bit file length in *bits* at the end of the buffer. */
530 *(md5_uint32 *) & ctx->buffer[bytes + pad] = SWAP(ctx->total[0] << 3);
531 *(md5_uint32 *) & ctx->buffer[bytes + pad + 4] =
532 SWAP((ctx->total[1] << 3) | (ctx->total[0] >> 29));
533
534 /* Process last bytes. */
535 md5_process_block(ctx->buffer, bytes + pad + 8, ctx);
536
537 return md5_read_ctx(ctx, resbuf);
538}
539
540/* Compute MD5 message digest for LEN bytes beginning at BUFFER. The
541 result is always in little endian byte order, so that a byte-wise
542 output yields to the wanted ASCII representation of the message
543 digest. */
544void *md5_buffer(const char *buffer, size_t len, void *resblock)
545{
546 struct md5_ctx ctx;
547
548 /* Initialize the computation context. */
549 md5_init_ctx(&ctx);
550
551 /* Process whole buffer but last len % 64 bytes. */
552 md5_process_bytes(buffer, len, &ctx);
553
554 /* Put result in desired memory area. */
555 return md5_finish_ctx(&ctx, resblock);
556}
557
558static void md5_process_bytes(const void *buffer, size_t len, struct md5_ctx *ctx)
559{
560 /* When we already have some bits in our internal buffer concatenate
561 both inputs first. */
562 if (ctx->buflen != 0) {
563 size_t left_over = ctx->buflen;
564 size_t add = 128 - left_over > len ? len : 128 - left_over;
565
566 memcpy(&ctx->buffer[left_over], buffer, add);
567 ctx->buflen += add;
568
569 if (left_over + add > 64) {
570 md5_process_block(ctx->buffer, (left_over + add) & ~63, ctx);
571 /* The regions in the following copy operation cannot overlap. */
572 memcpy(ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
573 (left_over + add) & 63);
574 ctx->buflen = (left_over + add) & 63;
575 }
576
577 buffer = (const char *) buffer + add;
578 len -= add;
579 }
580
581 /* Process available complete blocks. */
582 if (len > 64) {
583 md5_process_block(buffer, len & ~63, ctx);
584 buffer = (const char *) buffer + (len & ~63);
585 len &= 63;
586 }
587
588 /* Move remaining bytes in internal buffer. */
589 if (len > 0) {
590 memcpy(ctx->buffer, buffer, len);
591 ctx->buflen = len;
592 }
593}
594
595/* These are the four functions used in the four steps of the MD5 algorithm
596 and defined in the RFC 1321. The first function is a little bit optimized
597 (as found in Colin Plumbs public domain implementation). */
598/* #define FF(b, c, d) ((b & c) | (~b & d)) */
599#define FF(b, c, d) (d ^ (b & (c ^ d)))
600#define FG(b, c, d) FF (d, b, c)
601#define FH(b, c, d) (b ^ c ^ d)
602#define FI(b, c, d) (c ^ (b | ~d))
603
604/* Process LEN bytes of BUFFER, accumulating context into CTX.
605 It is assumed that LEN % 64 == 0. */
606static void md5_process_block(const void *buffer, size_t len, struct md5_ctx *ctx)
607{
608 md5_uint32 correct_words[16];
609 const md5_uint32 *words = buffer;
610 size_t nwords = len / sizeof(md5_uint32);
611 const md5_uint32 *endp = words + nwords;
612 md5_uint32 A = ctx->A;
613 md5_uint32 B = ctx->B;
614 md5_uint32 C = ctx->C;
615 md5_uint32 D = ctx->D;
616
617 /* First increment the byte count. RFC 1321 specifies the possible
618 length of the file up to 2^64 bits. Here we only compute the
619 number of bytes. Do a double word increment. */
620 ctx->total[0] += len;
621 if (ctx->total[0] < len)
622 ++ctx->total[1];
623
624 /* Process all bytes in the buffer with 64 bytes in each round of
625 the loop. */
626 while (words < endp) {
627 md5_uint32 *cwp = correct_words;
628 md5_uint32 A_save = A;
629 md5_uint32 B_save = B;
630 md5_uint32 C_save = C;
631 md5_uint32 D_save = D;
632
633 /* First round: using the given function, the context and a constant
634 the next context is computed. Because the algorithms processing
635 unit is a 32-bit word and it is determined to work on words in
636 little endian byte order we perhaps have to change the byte order
637 before the computation. To reduce the work for the next steps
638 we store the swapped words in the array CORRECT_WORDS. */
639
640#define OP(a, b, c, d, s, T) \
641 do \
642 { \
643 a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T; \
644 ++words; \
645 CYCLIC (a, s); \
646 a += b; \
647 } \
648 while (0)
649
650 /* It is unfortunate that C does not provide an operator for
651 cyclic rotation. Hope the C compiler is smart enough. */
652#define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s)))
653
654 /* Before we start, one word to the strange constants.
655 They are defined in RFC 1321 as
656
657 T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
658 */
659
660 /* Round 1. */
661 OP(A, B, C, D, 7, 0xd76aa478);
662 OP(D, A, B, C, 12, 0xe8c7b756);
663 OP(C, D, A, B, 17, 0x242070db);
664 OP(B, C, D, A, 22, 0xc1bdceee);
665 OP(A, B, C, D, 7, 0xf57c0faf);
666 OP(D, A, B, C, 12, 0x4787c62a);
667 OP(C, D, A, B, 17, 0xa8304613);
668 OP(B, C, D, A, 22, 0xfd469501);
669 OP(A, B, C, D, 7, 0x698098d8);
670 OP(D, A, B, C, 12, 0x8b44f7af);
671 OP(C, D, A, B, 17, 0xffff5bb1);
672 OP(B, C, D, A, 22, 0x895cd7be);
673 OP(A, B, C, D, 7, 0x6b901122);
674 OP(D, A, B, C, 12, 0xfd987193);
675 OP(C, D, A, B, 17, 0xa679438e);
676 OP(B, C, D, A, 22, 0x49b40821);
677 /* For the second to fourth round we have the possibly swapped words
678 in CORRECT_WORDS. Redefine the macro to take an additional first
679 argument specifying the function to use. */
680#undef OP
681#define OP(f, a, b, c, d, k, s, T) \
682 do \
683 { \
684 a += f (b, c, d) + correct_words[k] + T; \
685 CYCLIC (a, s); \
686 a += b; \
687 } \
688 while (0)
689
690 /* Round 2. */
691 OP(FG, A, B, C, D, 1, 5, 0xf61e2562);
692 OP(FG, D, A, B, C, 6, 9, 0xc040b340);
693 OP(FG, C, D, A, B, 11, 14, 0x265e5a51);
694 OP(FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
695 OP(FG, A, B, C, D, 5, 5, 0xd62f105d);
696 OP(FG, D, A, B, C, 10, 9, 0x02441453);
697 OP(FG, C, D, A, B, 15, 14, 0xd8a1e681);
698 OP(FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
699 OP(FG, A, B, C, D, 9, 5, 0x21e1cde6);
700 OP(FG, D, A, B, C, 14, 9, 0xc33707d6);
701 OP(FG, C, D, A, B, 3, 14, 0xf4d50d87);
702 OP(FG, B, C, D, A, 8, 20, 0x455a14ed);
703 OP(FG, A, B, C, D, 13, 5, 0xa9e3e905);
704 OP(FG, D, A, B, C, 2, 9, 0xfcefa3f8);
705 OP(FG, C, D, A, B, 7, 14, 0x676f02d9);
706 OP(FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
707
708 /* Round 3. */
709 OP(FH, A, B, C, D, 5, 4, 0xfffa3942);
710 OP(FH, D, A, B, C, 8, 11, 0x8771f681);
711 OP(FH, C, D, A, B, 11, 16, 0x6d9d6122);
712 OP(FH, B, C, D, A, 14, 23, 0xfde5380c);
713 OP(FH, A, B, C, D, 1, 4, 0xa4beea44);
714 OP(FH, D, A, B, C, 4, 11, 0x4bdecfa9);
715 OP(FH, C, D, A, B, 7, 16, 0xf6bb4b60);
716 OP(FH, B, C, D, A, 10, 23, 0xbebfbc70);
717 OP(FH, A, B, C, D, 13, 4, 0x289b7ec6);
718 OP(FH, D, A, B, C, 0, 11, 0xeaa127fa);
719 OP(FH, C, D, A, B, 3, 16, 0xd4ef3085);
720 OP(FH, B, C, D, A, 6, 23, 0x04881d05);
721 OP(FH, A, B, C, D, 9, 4, 0xd9d4d039);
722 OP(FH, D, A, B, C, 12, 11, 0xe6db99e5);
723 OP(FH, C, D, A, B, 15, 16, 0x1fa27cf8);
724 OP(FH, B, C, D, A, 2, 23, 0xc4ac5665);
725
726 /* Round 4. */
727 OP(FI, A, B, C, D, 0, 6, 0xf4292244);
728 OP(FI, D, A, B, C, 7, 10, 0x432aff97);
729 OP(FI, C, D, A, B, 14, 15, 0xab9423a7);
730 OP(FI, B, C, D, A, 5, 21, 0xfc93a039);
731 OP(FI, A, B, C, D, 12, 6, 0x655b59c3);
732 OP(FI, D, A, B, C, 3, 10, 0x8f0ccc92);
733 OP(FI, C, D, A, B, 10, 15, 0xffeff47d);
734 OP(FI, B, C, D, A, 1, 21, 0x85845dd1);
735 OP(FI, A, B, C, D, 8, 6, 0x6fa87e4f);
736 OP(FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
737 OP(FI, C, D, A, B, 6, 15, 0xa3014314);
738 OP(FI, B, C, D, A, 13, 21, 0x4e0811a1);
739 OP(FI, A, B, C, D, 4, 6, 0xf7537e82);
740 OP(FI, D, A, B, C, 11, 10, 0xbd3af235);
741 OP(FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
742 OP(FI, B, C, D, A, 9, 21, 0xeb86d391);
743
744 /* Add the starting values of the context. */
745 A += A_save;
746 B += B_save;
747 C += C_save;
748 D += D_save;
749 }
750
751 /* Put checksum in context given as argument. */
752 ctx->A = A;
753 ctx->B = B;
754 ctx->C = C;
755 ctx->D = D;
756}
757
758
759/*----------------------------------------------------------------------------
760 *--------end of md5.c
761 *----------------------------------------------------------------------------*/
762
763
764int md5Reset(register md5Param* p)
765{
766 unsigned int i;
767
768 md5_init_ctx(p);
769
770 for (i = 0; i < 16; i += 8)
771 {
772 p->buffer[i] = 0x00;
773 p->buffer[i+1] = 0x00;
774 p->buffer[i+2] = 0x00;
775 p->buffer[i+3] = 0x00;
776 p->buffer[i+4] = 0x00;
777 p->buffer[i+5] = 0x00;
778 p->buffer[i+6] = 0x00;
779 p->buffer[i+7] = 0x00;
780 }
781
782 return 0;
783}
784
785int md5Update(md5Param* p, const sh_byte* data, int size)
786{
787 md5_process_bytes(data, size, p);
788 return 0;
789}
790
791static void md5Finish(md5Param* p, void *resblock)
792{
793 (void) md5_finish_ctx(p, resblock);
794}
795
796int md5Digest(md5Param* p, md5_uint32* data)
797{
798 md5Finish(p, data);
799 (void) md5Reset(p);
800 return 0;
801}
802/*@+type@*/
803
804
805/* Compute MD5 message digest for bytes read from STREAM. The
806 resulting message digest number will be written into the 16 bytes
807 beginning at RESBLOCK. */
808static int md5_stream(char * filename, void *resblock,
809 UINT64 Length, int timeout)
810{
811 /* Important: BLOCKSIZE must be a multiple of 64. */
812 static const int BLOCKSIZE = 8192;
813 struct md5_ctx ctx;
814 char buffer[8264]; /* BLOCKSIZE + 72 AIX compiler chokes */
815 size_t sum;
816
817 SL_TICKET fd;
818 char * tmp;
819 uid_t euid;
820 UINT64 bcount = 0;
821
822 unsigned long pages_read;
823#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
824 /*@-nestedextern@*/
825 extern long IO_Limit;
826 /*@+nestedextern@*/
827#endif
828
829 /* Initialize the computation context. */
830 (void) md5Reset (&ctx);
831
832 fd = tiger_fd;
833
834 if (SL_ISERROR (fd))
835 {
836 TPT((0, FIL__, __LINE__, _("msg=<SL_ISERROR (%ld)>\n"), tiger_fd));
837 tmp = sh_util_safe_name (filename);
838 (void) sl_get_euid(&euid);
839 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, fd,
840 MSG_E_ACCESS, (long) euid, tmp);
841 SH_FREE(tmp);
842 return -1;
843 }
844
845 pages_read = 0;
846
847 /* Iterate over full file contents. */
848 while (1 == 1) {
849 /* We read the file in blocks of BLOCKSIZE bytes. One call of the
850 computation function processes the whole buffer so that with the
851 next round of the loop another block can be read. */
852 off_t n;
853 sum = 0;
854
855 /* Read block. Take care for partial reads. */
856 do {
857
858 n = (off_t) sl_read_timeout (fd, buffer + sum,
859 (size_t) BLOCKSIZE - sum, timeout);
860
861 if (SL_ISERROR (n))
862 {
863 if (sig_termfast == 1)
864 return -1;
865 TPT((0, FIL__ , __LINE__ , _("msg=<SL_ISERROR (%ld)>\n"), n));
866 tmp = sh_util_safe_name (filename);
867 if (n == SL_TIMEOUT)
868 {
869 if (timeout != 7) {
870 sh_error_handle (SH_ERR_ERR, FIL__, __LINE__, n, MSG_E_TIMEOUT,
871 timeout, tmp);
872 }
873 }
874 else
875 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, n,
876 MSG_E_READ, tmp);
877 SH_FREE(tmp);
878 return -1;
879 }
880
881 if (Length != TIGER_NOLIM)
882 {
883 bcount += n;
884 if (bcount > Length)
885 n = n - (bcount - Length);
886 n = (n < 0) ? 0 : n;
887 }
888
889 sum += n;
890 }
891 while (sum < (size_t) BLOCKSIZE
892 && n != 0);
893
894 ++pages_read;
895
896 /* If end of file is reached, end the loop. */
897 if (n == 0)
898 break;
899
900 /* Process buffer with BLOCKSIZE bytes. Note that
901 BLOCKSIZE % 64 == 0
902 */
903 md5_process_block(buffer, BLOCKSIZE, &ctx);
904 sh.statistics.bytes_hashed += BLOCKSIZE;
905
906#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
907 if ((IO_Limit) > 0 && (pages_read == 32)) /* check for I/O limit */
908 {
909 sh_unix_io_pause ();
910 pages_read = 0;
911 }
912 if (sig_termfast == 1)
913 {
914 return -1;
915 }
916#endif
917 }
918
919 /* Add the last bytes if necessary. */
920 if (sum > 0)
921 {
922 md5_process_bytes(buffer, sum, &ctx);
923 sh.statistics.bytes_hashed += BLOCKSIZE;
924 }
925
926 /* Construct result in desired memory. */
927 (void) md5Digest(&ctx, resblock);
928
929 return 0;
930}
931
932static
933char * sh_tiger_md5_hash (char * filename, TigerType what,
934 UINT64 Length, int timeout)
935{
936 int cnt;
937 static char out[KEY_LEN+1];
938 unsigned char md5buffer[16];
939
940 if (what != TIGER_FD)
941 {
942 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, 0,
943 MSG_E_SUBGEN, _("Not TIGER_FD"),
944 _("sh_tiger_md5_hash"));
945 out[0] = '\0';
946 return out;
947 }
948
949 (void) md5_stream (filename, md5buffer, Length, timeout);
950
951 /*@-bufferoverflowhigh -usedef@*/
952 for (cnt = 0; cnt < 16; ++cnt)
953 sprintf (&out[cnt*2], _("%02X"), /* known to fit */
954 (unsigned int) md5buffer[cnt]);
955 /*@+bufferoverflowhigh +usedef@*/
956 for (cnt = 32; cnt < KEY_LEN; ++cnt)
957 out[cnt] = '0';
958 out[KEY_LEN] = '\0';
959
960 return out;
961}
962
963/* USE_MD5 */
964#endif
965
966/***************************************************************
967 *
968 * SHA1
969 *
970 ***************************************************************/
971
972#ifdef USE_SHA1
973/*@-type@*/
974
975typedef unsigned char sha_word8;
976typedef sh_word32 sha_word32;
977
978/* The SHA block size and message digest sizes, in bytes */
979
980#define SHA_DATASIZE 64
981#define SHA_DATALEN 16
982#define SHA_DIGESTSIZE 20
983#define SHA_DIGESTLEN 5
984/* The structure for storing SHA info */
985
986typedef struct sha_ctx {
987 sha_word32 digest[SHA_DIGESTLEN]; /* Message digest */
988 sha_word32 count_l, count_h; /* 64-bit block count */
989 sha_word8 block[SHA_DATASIZE]; /* SHA data buffer */
990 int index; /* index into buffer */
991} SHA_CTX;
992
993static void sha_init(struct sha_ctx *ctx);
994static void sha_update(struct sha_ctx *ctx, sha_word8 *buffer,sha_word32 len);
995static void sha_final(struct sha_ctx *ctx);
996static void sha_digest(struct sha_ctx *ctx, sha_word8 *s);
997
998
999/* The SHA f()-functions. The f1 and f3 functions can be optimized to
1000 save one boolean operation each - thanks to Rich Schroeppel,
1001 rcs@cs.arizona.edu for discovering this */
1002
1003/*#define f1(x,y,z) ( ( x & y ) | ( ~x & z ) ) // Rounds 0-19 */
1004#define f1(x,y,z) ( z ^ ( x & ( y ^ z ) ) ) /* Rounds 0-19 */
1005#define f2(x,y,z) ( x ^ y ^ z ) /* Rounds 20-39 */
1006/*#define f3(x,y,z) ( ( x & y ) | ( x & z ) | ( y & z ) ) // Rounds 40-59 */
1007#define f3(x,y,z) ( ( x & y ) | ( z & ( x | y ) ) ) /* Rounds 40-59 */
1008#define f4(x,y,z) ( x ^ y ^ z ) /* Rounds 60-79 */
1009
1010/* The SHA Mysterious Constants */
1011
1012#define K1 0x5A827999L /* Rounds 0-19 */
1013#define K2 0x6ED9EBA1L /* Rounds 20-39 */
1014#define K3 0x8F1BBCDCL /* Rounds 40-59 */
1015#define K4 0xCA62C1D6L /* Rounds 60-79 */
1016
1017/* SHA initial values */
1018
1019#define h0init 0x67452301L
1020#define h1init 0xEFCDAB89L
1021#define h2init 0x98BADCFEL
1022#define h3init 0x10325476L
1023#define h4init 0xC3D2E1F0L
1024
1025/* 32-bit rotate left - kludged with shifts */
1026
1027#define ROTL(n,X) ( ( (X) << (n) ) | ( (X) >> ( 32 - (n) ) ) )
1028
1029/* The initial expanding function. The hash function is defined over an
1030 80-word expanded input array W, where the first 16 are copies of the input
1031 data, and the remaining 64 are defined by
1032
1033 W[ i ] = W[ i - 16 ] ^ W[ i - 14 ] ^ W[ i - 8 ] ^ W[ i - 3 ]
1034
1035 This implementation generates these values on the fly in a circular
1036 buffer - thanks to Colin Plumb, colin@nyx10.cs.du.edu for this
1037 optimization.
1038
1039 The updated SHA changes the expanding function by adding a rotate of 1
1040 bit. Thanks to Jim Gillogly, jim@rand.org, and an anonymous contributor
1041 for this information */
1042
1043#define expand(W,i) ( W[ i & 15 ] = \
1044 ROTL( 1, ( W[ i & 15 ] ^ W[ (i - 14) & 15 ] ^ \
1045 W[ (i - 8) & 15 ] ^ W[ (i - 3) & 15 ] ) ) )
1046
1047
1048/* The prototype SHA sub-round. The fundamental sub-round is:
1049
1050 a' = e + ROTL( 5, a ) + f( b, c, d ) + k + data;
1051 b' = a;
1052 c' = ROTL( 30, b );
1053 d' = c;
1054 e' = d;
1055
1056 but this is implemented by unrolling the loop 5 times and renaming the
1057 variables ( e, a, b, c, d ) = ( a', b', c', d', e' ) each iteration.
1058 This code is then replicated 20 times for each of the 4 functions, using
1059 the next 20 values from the W[] array each time */
1060
1061#define subRound(a, b, c, d, e, f, k, data) \
1062 ( e += ROTL( 5, a ) + f( b, c, d ) + k + data, b = ROTL( 30, b ) )
1063
1064/* Initialize the SHA values */
1065
1066static void sha_init(struct sha_ctx *ctx)
1067{
1068 /* Set the h-vars to their initial values */
1069 ctx->digest[ 0 ] = h0init;
1070 ctx->digest[ 1 ] = h1init;
1071 ctx->digest[ 2 ] = h2init;
1072 ctx->digest[ 3 ] = h3init;
1073 ctx->digest[ 4 ] = h4init;
1074
1075 /* Initialize bit count */
1076 ctx->count_l = ctx->count_h = 0;
1077
1078 /* Initialize buffer */
1079 ctx->index = 0;
1080}
1081
1082/* Perform the SHA transformation. Note that this code, like MD5, seems to
1083 break some optimizing compilers due to the complexity of the expressions
1084 and the size of the basic block. It may be necessary to split it into
1085 sections, e.g. based on the four subrounds
1086
1087 Note that this function destroys the data area */
1088
1089static void sha_transform(struct sha_ctx *ctx, sha_word32 *data )
1090{
1091 register sha_word32 A, B, C, D, E; /* Local vars */
1092
1093 /* Set up first buffer and local data buffer */
1094 A = ctx->digest[0];
1095 B = ctx->digest[1];
1096 C = ctx->digest[2];
1097 D = ctx->digest[3];
1098 E = ctx->digest[4];
1099
1100 /* Heavy mangling, in 4 sub-rounds of 20 interations each. */
1101 subRound( A, B, C, D, E, f1, K1, data[ 0] );
1102 subRound( E, A, B, C, D, f1, K1, data[ 1] );
1103 subRound( D, E, A, B, C, f1, K1, data[ 2] );
1104 subRound( C, D, E, A, B, f1, K1, data[ 3] );
1105 subRound( B, C, D, E, A, f1, K1, data[ 4] );
1106 subRound( A, B, C, D, E, f1, K1, data[ 5] );
1107 subRound( E, A, B, C, D, f1, K1, data[ 6] );
1108 subRound( D, E, A, B, C, f1, K1, data[ 7] );
1109 subRound( C, D, E, A, B, f1, K1, data[ 8] );
1110 subRound( B, C, D, E, A, f1, K1, data[ 9] );
1111 subRound( A, B, C, D, E, f1, K1, data[10] );
1112 subRound( E, A, B, C, D, f1, K1, data[11] );
1113 subRound( D, E, A, B, C, f1, K1, data[12] );
1114 subRound( C, D, E, A, B, f1, K1, data[13] );
1115 subRound( B, C, D, E, A, f1, K1, data[14] );
1116 subRound( A, B, C, D, E, f1, K1, data[15] );
1117 subRound( E, A, B, C, D, f1, K1, expand( data, 16 ) );
1118 subRound( D, E, A, B, C, f1, K1, expand( data, 17 ) );
1119 subRound( C, D, E, A, B, f1, K1, expand( data, 18 ) );
1120 subRound( B, C, D, E, A, f1, K1, expand( data, 19 ) );
1121
1122 subRound( A, B, C, D, E, f2, K2, expand( data, 20 ) );
1123 subRound( E, A, B, C, D, f2, K2, expand( data, 21 ) );
1124 subRound( D, E, A, B, C, f2, K2, expand( data, 22 ) );
1125 subRound( C, D, E, A, B, f2, K2, expand( data, 23 ) );
1126 subRound( B, C, D, E, A, f2, K2, expand( data, 24 ) );
1127 subRound( A, B, C, D, E, f2, K2, expand( data, 25 ) );
1128 subRound( E, A, B, C, D, f2, K2, expand( data, 26 ) );
1129 subRound( D, E, A, B, C, f2, K2, expand( data, 27 ) );
1130 subRound( C, D, E, A, B, f2, K2, expand( data, 28 ) );
1131 subRound( B, C, D, E, A, f2, K2, expand( data, 29 ) );
1132 subRound( A, B, C, D, E, f2, K2, expand( data, 30 ) );
1133 subRound( E, A, B, C, D, f2, K2, expand( data, 31 ) );
1134 subRound( D, E, A, B, C, f2, K2, expand( data, 32 ) );
1135 subRound( C, D, E, A, B, f2, K2, expand( data, 33 ) );
1136 subRound( B, C, D, E, A, f2, K2, expand( data, 34 ) );
1137 subRound( A, B, C, D, E, f2, K2, expand( data, 35 ) );
1138 subRound( E, A, B, C, D, f2, K2, expand( data, 36 ) );
1139 subRound( D, E, A, B, C, f2, K2, expand( data, 37 ) );
1140 subRound( C, D, E, A, B, f2, K2, expand( data, 38 ) );
1141 subRound( B, C, D, E, A, f2, K2, expand( data, 39 ) );
1142
1143 subRound( A, B, C, D, E, f3, K3, expand( data, 40 ) );
1144 subRound( E, A, B, C, D, f3, K3, expand( data, 41 ) );
1145 subRound( D, E, A, B, C, f3, K3, expand( data, 42 ) );
1146 subRound( C, D, E, A, B, f3, K3, expand( data, 43 ) );
1147 subRound( B, C, D, E, A, f3, K3, expand( data, 44 ) );
1148 subRound( A, B, C, D, E, f3, K3, expand( data, 45 ) );
1149 subRound( E, A, B, C, D, f3, K3, expand( data, 46 ) );
1150 subRound( D, E, A, B, C, f3, K3, expand( data, 47 ) );
1151 subRound( C, D, E, A, B, f3, K3, expand( data, 48 ) );
1152 subRound( B, C, D, E, A, f3, K3, expand( data, 49 ) );
1153 subRound( A, B, C, D, E, f3, K3, expand( data, 50 ) );
1154 subRound( E, A, B, C, D, f3, K3, expand( data, 51 ) );
1155 subRound( D, E, A, B, C, f3, K3, expand( data, 52 ) );
1156 subRound( C, D, E, A, B, f3, K3, expand( data, 53 ) );
1157 subRound( B, C, D, E, A, f3, K3, expand( data, 54 ) );
1158 subRound( A, B, C, D, E, f3, K3, expand( data, 55 ) );
1159 subRound( E, A, B, C, D, f3, K3, expand( data, 56 ) );
1160 subRound( D, E, A, B, C, f3, K3, expand( data, 57 ) );
1161 subRound( C, D, E, A, B, f3, K3, expand( data, 58 ) );
1162 subRound( B, C, D, E, A, f3, K3, expand( data, 59 ) );
1163
1164 subRound( A, B, C, D, E, f4, K4, expand( data, 60 ) );
1165 subRound( E, A, B, C, D, f4, K4, expand( data, 61 ) );
1166 subRound( D, E, A, B, C, f4, K4, expand( data, 62 ) );
1167 subRound( C, D, E, A, B, f4, K4, expand( data, 63 ) );
1168 subRound( B, C, D, E, A, f4, K4, expand( data, 64 ) );
1169 subRound( A, B, C, D, E, f4, K4, expand( data, 65 ) );
1170 subRound( E, A, B, C, D, f4, K4, expand( data, 66 ) );
1171 subRound( D, E, A, B, C, f4, K4, expand( data, 67 ) );
1172 subRound( C, D, E, A, B, f4, K4, expand( data, 68 ) );
1173 subRound( B, C, D, E, A, f4, K4, expand( data, 69 ) );
1174 subRound( A, B, C, D, E, f4, K4, expand( data, 70 ) );
1175 subRound( E, A, B, C, D, f4, K4, expand( data, 71 ) );
1176 subRound( D, E, A, B, C, f4, K4, expand( data, 72 ) );
1177 subRound( C, D, E, A, B, f4, K4, expand( data, 73 ) );
1178 subRound( B, C, D, E, A, f4, K4, expand( data, 74 ) );
1179 subRound( A, B, C, D, E, f4, K4, expand( data, 75 ) );
1180 subRound( E, A, B, C, D, f4, K4, expand( data, 76 ) );
1181 subRound( D, E, A, B, C, f4, K4, expand( data, 77 ) );
1182 subRound( C, D, E, A, B, f4, K4, expand( data, 78 ) );
1183 subRound( B, C, D, E, A, f4, K4, expand( data, 79 ) );
1184
1185 /* Build message digest */
1186 ctx->digest[0] += A;
1187 ctx->digest[1] += B;
1188 ctx->digest[2] += C;
1189 ctx->digest[3] += D;
1190 ctx->digest[4] += E;
1191}
1192
1193#if 1
1194
1195#ifndef EXTRACT_UCHAR
1196#define EXTRACT_UCHAR(p) (*(unsigned char *)(p))
1197#endif
1198
1199#define STRING2INT(s) ((((((EXTRACT_UCHAR(s) << 8) \
1200 | EXTRACT_UCHAR(s+1)) << 8) \
1201 | EXTRACT_UCHAR(s+2)) << 8) \
1202 | EXTRACT_UCHAR(s+3))
1203#else
1204sha_word32 STRING2INT(word8 *s)
1205{
1206 sha_word32 r;
1207 int i;
1208
1209 for (i = 0, r = 0; i < 4; i++, s++)
1210 r = (r << 8) | *s;
1211 return r;
1212}
1213#endif
1214
1215static void sha_block(struct sha_ctx *ctx, sha_word8 *block)
1216{
1217 sha_word32 data[SHA_DATALEN];
1218 int i;
1219
1220 /* Update block count */
1221 /*@-boolops@*/
1222 if (!++ctx->count_l)
1223 ++ctx->count_h;
1224 /*@+boolops@*/
1225
1226 /* Endian independent conversion */
1227 for (i = 0; i<SHA_DATALEN; i++, block += 4)
1228 data[i] = STRING2INT(block);
1229
1230 sha_transform(ctx, data);
1231}
1232
1233static void sha_update(struct sha_ctx *ctx, sha_word8 *buffer, sha_word32 len)
1234{
1235 if (ctx->index != 0)
1236 { /* Try to fill partial block */
1237 unsigned left = SHA_DATASIZE - ctx->index;
1238 if (len < left)
1239 {
1240 memmove(ctx->block + ctx->index, buffer, len);
1241 ctx->index += len;
1242 return; /* Finished */
1243 }
1244 else
1245 {
1246 memmove(ctx->block + ctx->index, buffer, left);
1247 sha_block(ctx, ctx->block);
1248 buffer += left;
1249 len -= left;
1250 }
1251 }
1252 while (len >= SHA_DATASIZE)
1253 {
1254 sha_block(ctx, buffer);
1255 buffer += SHA_DATASIZE;
1256 len -= SHA_DATASIZE;
1257 }
1258 /*@-predboolint@*/
1259 if ((ctx->index = len)) /* This assignment is intended */
1260 /*@+predboolint@*/
1261 /* Buffer leftovers */
1262 memmove(ctx->block, buffer, len);
1263}
1264
1265/* Final wrapup - pad to SHA_DATASIZE-byte boundary with the bit pattern
1266 1 0* (64-bit count of bits processed, MSB-first) */
1267
1268static void sha_final(struct sha_ctx *ctx)
1269{
1270 sha_word32 data[SHA_DATALEN];
1271 int i;
1272 int words;
1273
1274 i = ctx->index;
1275 /* Set the first char of padding to 0x80. This is safe since there is
1276 always at least one byte free */
1277 ctx->block[i++] = 0x80;
1278
1279 /* Fill rest of word */
1280 /*@-predboolint@*/
1281 for( ; i & 3; i++)
1282 ctx->block[i] = 0;
1283 /*@+predboolint@*/
1284
1285 /* i is now a multiple of the word size 4 */
1286 /*@-shiftimplementation@*/
1287 words = i >> 2;
1288 /*@+shiftimplementation@*/
1289 for (i = 0; i < words; i++)
1290 data[i] = STRING2INT(ctx->block + 4*i);
1291
1292 if (words > (SHA_DATALEN-2))
1293 { /* No room for length in this block. Process it and
1294 * pad with another one */
1295 for (i = words ; i < SHA_DATALEN; i++)
1296 data[i] = 0;
1297 sha_transform(ctx, data);
1298 for (i = 0; i < (SHA_DATALEN-2); i++)
1299 data[i] = 0;
1300 }
1301 else
1302 for (i = words ; i < SHA_DATALEN - 2; i++)
1303 data[i] = 0;
1304 /* Theres 512 = 2^9 bits in one block */
1305 /*@-shiftimplementation@*/
1306 data[SHA_DATALEN-2] = (ctx->count_h << 9) | (ctx->count_l >> 23);
1307 data[SHA_DATALEN-1] = (ctx->count_l << 9) | (ctx->index << 3);
1308 /*@+shiftimplementation@*/
1309 sha_transform(ctx, data);
1310}
1311
1312static void sha_digest(struct sha_ctx *ctx, sha_word8 *s)
1313{
1314 int i;
1315
1316 for (i = 0; i < SHA_DIGESTLEN; i++)
1317 {
1318 *s++ = ctx->digest[i] >> 24;
1319 *s++ = 0xff & (ctx->digest[i] >> 16);
1320 *s++ = 0xff & (ctx->digest[i] >> 8);
1321 *s++ = 0xff & ctx->digest[i];
1322 }
1323}
1324/*@+type@*/
1325
1326/* Compute SHA1 message digest for bytes read from STREAM. The
1327 resulting message digest number will be written into the 16 bytes
1328 beginning at RESBLOCK. */
1329static int sha1_stream(char * filename, void *resblock,
1330 UINT64 Length, int timeout)
1331{
1332 /* Important: BLOCKSIZE must be a multiple of 64. */
1333 static const int BLOCKSIZE = 4096;
1334 struct sha_ctx ctx;
1335 char buffer[4168]; /* BLOCKSIZE + 72 AIX compiler chokes */
1336 off_t sum = 0;
1337 SL_TICKET fd;
1338 char * tmp;
1339 uid_t euid;
1340 UINT64 bcount = 0;
1341
1342 unsigned long pages_read;
1343#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1344 /*@-nestedextern@*/
1345 extern long IO_Limit;
1346 /*@+nestedextern@*/
1347#endif
1348
1349 /* Initialize the computation context. */
1350 (void) sha_init(&ctx);
1351
1352 fd = tiger_fd;
1353
1354 if (SL_ISERROR (fd))
1355 {
1356 TPT((0, FIL__, __LINE__, _("msg=<SL_ISERROR (%ld)>\n"), tiger_fd));
1357 tmp = sh_util_safe_name (filename);
1358 (void) sl_get_euid(&euid);
1359 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, fd,
1360 MSG_E_ACCESS, (long) euid, tmp);
1361 SH_FREE(tmp);
1362 return -1;
1363 }
1364
1365 /* Iterate over full file contents. */
1366
1367 pages_read = 0;
1368
1369 while (1 == 1) {
1370 /* We read the file in blocks of BLOCKSIZE bytes. One call of the
1371 computation function processes the whole buffer so that with the
1372 next round of the loop another block can be read. */
1373 off_t n;
1374 sum = 0;
1375
1376 /* Read block. Take care for partial reads. */
1377 do {
1378 n = (off_t) sl_read_timeout(fd, buffer + sum,
1379 (size_t) BLOCKSIZE - sum, timeout);
1380
1381 if (SL_ISERROR (n))
1382 {
1383 if (sig_termfast == 1)
1384 return -1;
1385
1386 TPT((0, FIL__ , __LINE__ , _("msg=<SL_ISERROR (%ld)>\n"), n));
1387 tmp = sh_util_safe_name (filename);
1388 if (n == SL_TIMEOUT)
1389 {
1390 if (timeout != 7) {
1391 sh_error_handle (SH_ERR_ERR, FIL__, __LINE__, n, MSG_E_TIMEOUT,
1392 timeout, tmp);
1393 }
1394 }
1395 else
1396 {
1397 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, n,
1398 MSG_E_READ, tmp);
1399 }
1400 SH_FREE(tmp);
1401 return -1;
1402 }
1403
1404 if (Length != TIGER_NOLIM)
1405 {
1406 bcount += n;
1407 if (bcount > Length)
1408 n = n - (bcount - Length);
1409 n = (n < 0) ? 0 : n;
1410 }
1411
1412 sum += n;
1413 }
1414 while (sum < (off_t)BLOCKSIZE
1415 && n != 0);
1416
1417 ++pages_read;
1418
1419 /* If end of file is reached, end the loop. */
1420 if (n == 0)
1421 break;
1422
1423 /* Process buffer with BLOCKSIZE bytes. Note that
1424 BLOCKSIZE % 64 == 0
1425 */
1426 sha_update(&ctx, (sha_word8*) buffer, (sha_word32) BLOCKSIZE);
1427 sh.statistics.bytes_hashed += BLOCKSIZE;
1428
1429#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1430 if ((IO_Limit) > 0 && (pages_read == 32)) /* check for I/O limit */
1431 {
1432 sh_unix_io_pause ();
1433 pages_read = 0;
1434 }
1435 if (sig_termfast == 1)
1436 {
1437 return -1;
1438 }
1439#endif
1440
1441 }
1442
1443 /* Add the last bytes if necessary. */
1444 if (sum > 0)
1445 {
1446 sha_update(&ctx, (sha_word8*) buffer, (sha_word32) sum);
1447 sh.statistics.bytes_hashed += sum;
1448 }
1449
1450 sha_final (&ctx);
1451
1452 /* Construct result in desired memory. */
1453 sha_digest (&ctx, resblock);
1454 return 0;
1455}
1456
1457
1458static char * sh_tiger_sha1_hash (char * filename, TigerType what,
1459 UINT64 Length, int timeout)
1460{
1461 int cnt = (int) Length; /* fix compiler warning */
1462 static char out[KEY_LEN+1];
1463 unsigned char sha1buffer[20];
1464
1465 if (what != TIGER_FD)
1466 {
1467 sh_error_handle (ShDFLevel[SH_ERR_T_FILE], FIL__, __LINE__, 0,
1468 MSG_E_SUBGEN, _("Not TIGER_FD"),
1469 _("sh_tiger_sha1_hash"));
1470 out[0] = '\0';
1471 return out;
1472 }
1473
1474 (void) sha1_stream (filename, sha1buffer, Length, timeout);
1475
1476 /*@-bufferoverflowhigh -usedef@*/
1477 for (cnt = 0; cnt < 20; ++cnt)
1478 sprintf (&out[cnt*2], _("%02X"), /* known to fit */
1479 (unsigned int) sha1buffer[cnt]);
1480 /*@+bufferoverflowhigh +usedef@*/
1481 for (cnt = 40; cnt < KEY_LEN; ++cnt)
1482 out[cnt] = '0';
1483 out[KEY_LEN] = '\0';
1484
1485 return out;
1486}
1487
1488/* ifdef USE_SHA1 */
1489#endif
1490
1491static int hash_type = 0;
1492
1493int sh_tiger_get_hashtype ()
1494{
1495 return hash_type;
1496}
1497
1498int sh_tiger_hashtype (const char * c)
1499{
1500 SL_ENTER( _("sh_tiger_hashtype"));
1501
1502 if (!c)
1503 {
1504 SL_RETURN( -1, _("sh_tiger_hashtype"));
1505 }
1506
1507 if (0 == strcmp(c, _("TIGER192")))
1508 hash_type = 0;
1509#ifdef USE_MD5
1510 else if (0 == strcmp(c, _("SHA1")))
1511 hash_type = 1;
1512#endif
1513#ifdef USE_SHA1
1514 else if (0 == strcmp(c, _("MD5")))
1515 hash_type = 2;
1516#endif
1517 else
1518 {
1519 SL_RETURN( -1, _("sh_tiger_hashtype"));
1520 }
1521 SL_RETURN( 0, _("sh_tiger_hashtype"));
1522}
1523
1524static char * sh_tiger_hash_internal (const char * filename, TigerType what,
1525 UINT64 Length, int timeout);
1526
1527char * sh_tiger_hash (const char * filename, TigerType what,
1528 UINT64 Length)
1529{
1530 return sh_tiger_hash_internal (filename, what, Length, 0);
1531}
1532
1533char * sh_tiger_generic_hash (char * filename, TigerType what,
1534 UINT64 Length, int timeout)
1535{
1536#ifdef USE_SHA1
1537 if (hash_type == 1)
1538 return sh_tiger_sha1_hash (filename, what, Length, timeout);
1539#endif
1540#ifdef USE_MD5
1541 if (hash_type == 2)
1542 return sh_tiger_md5_hash (filename, what, Length, timeout);
1543#endif
1544 return sh_tiger_hash_internal (filename, what, Length, timeout);
1545}
1546
1547/*
1548 * ------- end new --------- */
1549
1550static char * sh_tiger_hash_internal (const char * filename, TigerType what,
1551 UINT64 Length, int timeout)
1552{
1553#if defined(TIGER_64_BIT)
1554 word64 * res;
1555#else
1556 sh_word32 * res;
1557#endif
1558 static char out[KEY_LEN+1];
1559
1560 SL_ENTER( _("sh_tiger_hash_internal"));
1561
1562 res = sh_tiger_hash_val (filename, what, Length, timeout);
1563
1564 if (res != NULL)
1565 {
1566#if defined(TIGER_64_BIT)
1567 sl_snprintf(out,
1568 sizeof(out),
1569 MYFORMAT,
1570 (sh_word32)(res[0]>>32),
1571 (sh_word32)(res[0]),
1572 (sh_word32)(res[1]>>32),
1573 (sh_word32)(res[1]),
1574 (sh_word32)(res[2]>>32),
1575 (sh_word32)(res[2]) );
1576#else
1577 sl_snprintf(out,
1578 sizeof(out),
1579 MYFORMAT,
1580 (sh_word32)(res[1]),
1581 (sh_word32)(res[0]),
1582 (sh_word32)(res[3]),
1583 (sh_word32)(res[2]),
1584 (sh_word32)(res[5]),
1585 (sh_word32)(res[4]) );
1586#endif
1587 out[sizeof(out)-1] = '\0';
1588 SL_RETURN( out, _("sh_tiger_hash_internal"));
1589
1590 }
1591
1592 SL_RETURN( SH_KEY_NULL, _("sh_tiger_hash_internal"));
1593}
1594
1595char * sh_tiger_hash_gpg (const char * filename, TigerType what,
1596 UINT64 Length)
1597{
1598 size_t len;
1599 char * out;
1600 char outhash[48+6+1];
1601#if defined(TIGER_64_BIT)
1602 word64 * res;
1603#else
1604 sh_word32 * res;
1605#endif
1606
1607 SL_ENTER(_("sh_tiger_hash_gpg"));
1608
1609 res = sh_tiger_hash_val (filename, what, Length, 0);
1610 if (res != NULL)
1611 {
1612#if defined(TIGER_64_BIT)
1613 sl_snprintf(outhash,
1614 sizeof(outhash),
1615 GPGFORMAT,
1616 (sh_word32)(res[0]>>32),
1617 (sh_word32)(res[0]),
1618 (sh_word32)(res[1]>>32),
1619 (sh_word32)(res[1]),
1620 (sh_word32)(res[2]>>32),
1621 (sh_word32)(res[2]) );
1622#else
1623 sl_snprintf(outhash,
1624 sizeof(outhash),
1625 GPGFORMAT,
1626 (sh_word32)(res[1]),
1627 (sh_word32)(res[0]),
1628 (sh_word32)(res[3]),
1629 (sh_word32)(res[2]),
1630 (sh_word32)(res[5]),
1631 (sh_word32)(res[4]) );
1632#endif
1633 outhash[sizeof(outhash)-1] = '\0';
1634 }
1635 else
1636 {
1637 sl_strlcpy(outhash,
1638 _("00000000 00000000 00000000 00000000 00000000 00000000"),
1639 sizeof(outhash));
1640 }
1641
1642 if (what == TIGER_FILE && sl_ok_adds(sl_strlen (filename), (2 + 48 + 6)))
1643 len = sl_strlen (filename) + 2 + 48 + 6;
1644 else
1645 len = 48 + 6;
1646
1647 out = SH_ALLOC(len + 1);
1648
1649 if (what == TIGER_FILE)
1650 {
1651 (void) sl_strlcpy (out, filename, len+1);
1652 (void) sl_strlcat (out, _(": "), len+1);
1653 (void) sl_strlcat (out, outhash, len+1);
1654 }
1655 else
1656 {
1657 (void) sl_strlcpy (out, outhash, len+1);
1658 }
1659 SL_RETURN( out, _("sh_tiger_hash_gpg"));
1660}
1661
1662
1663UINT32 * sh_tiger_hash_uint32 (char * filename,
1664 TigerType what,
1665 UINT64 Length)
1666{
1667#if defined(TIGER_64_BIT)
1668 word64 * res;
1669#else
1670 sh_word32 * res;
1671#endif
1672
1673 static UINT32 out[6];
1674
1675 SL_ENTER(_("sh_tiger_hash_uint32"));
1676
1677 out[0] = 0; out[1] = 0; out[2] = 0;
1678 out[3] = 0; out[4] = 0; out[5] = 0;
1679
1680 res = sh_tiger_hash_val (filename, what, Length, 0);
1681
1682 if (res != NULL)
1683 {
1684#if defined(TIGER_64_BIT)
1685 out[0] = (UINT32)(res[0]>>32);
1686 out[1] = (UINT32)(res[0]);
1687 out[2] = (UINT32)(res[1]>>32);
1688 out[3] = (UINT32)(res[1]);
1689 out[4] = (UINT32)(res[2]>>32);
1690 out[5] = (UINT32)(res[2]);
1691#else
1692 out[0] = (UINT32)(res[1]);
1693 out[1] = (UINT32)(res[0]);
1694 out[2] = (UINT32)(res[3]);
1695 out[3] = (UINT32)(res[2]);
1696 out[4] = (UINT32)(res[5]);
1697 out[5] = (UINT32)(res[4]);
1698#endif
1699 }
1700
1701 SL_RETURN(out, _("sh_tiger_hash_uint32"));
1702}
1703
1704
1705
1706
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