source: trunk/src/samhain.c@ 540

Last change on this file since 540 was 539, checked in by katerina, 6 years ago

Fixes for tickets #431 (OpenBSD compatibility) and #432 (compiler warnings).
File size: 54.2 KB
Line 
1/* SAMHAIN file system integrity testing */
2/* Copyright (C) 1999, 2000 Rainer Wichmann */
3/* */
4/* This program is free software; you can redistribute it */
5/* and/or modify */
6/* it under the terms of the GNU General Public License as */
7/* published by */
8/* the Free Software Foundation; either version 2 of the License, or */
9/* (at your option) any later version. */
10/* */
11/* This program is distributed in the hope that it will be useful, */
12/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
13/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
14/* GNU General Public License for more details. */
15/* */
16/* You should have received a copy of the GNU General Public License */
17/* along with this program; if not, write to the Free Software */
18/* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
19
20#include "config_xor.h"
21
22
23#include <stdio.h>
24#include <stdlib.h>
25#include <string.h>
26#include <unistd.h>
27#include <fcntl.h>
28
29/* samhainctl */
30#include <sys/types.h>
31#include <sys/stat.h>
32#include <sys/wait.h>
33#include <signal.h>
34#include <errno.h>
35
36
37#if TIME_WITH_SYS_TIME
38#include <sys/time.h>
39#include <time.h>
40#else
41#if HAVE_SYS_TIME_H
42#include <sys/time.h>
43#else
44#include <time.h>
45#endif
46#endif
47
48#ifdef HAVE_MEMORY_H
49#include <memory.h>
50#endif
51
52#ifdef HAVE_SETPRIORITY
53#include <sys/resource.h>
54#endif
55
56#ifndef HAVE_LSTAT
57#define lstat stat
58#endif
59
60/* for FLT_EPSILON
61 */
62#include <float.h>
63
64#include "samhain.h"
65#include "sh_pthread.h"
66#include "sh_utils.h"
67#include "sh_error.h"
68#include "sh_unix.h"
69#include "sh_files.h"
70#include "sh_getopt.h"
71#include "sh_readconf.h"
72#include "sh_hash.h"
73#include "sh_dbIO.h"
74#include "sh_restrict.h"
75
76#include "sh_nmail.h"
77
78#include "sh_tiger.h"
79#include "sh_gpg.h"
80#include "sh_mem.h"
81#include "sh_xfer.h"
82#include "sh_tools.h"
83#include "sh_hash.h"
84#if defined(WITH_EXTERNAL)
85#include "sh_extern.h"
86#endif
87#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
88#include "sh_modules.h"
89#include "sh_ignore.h"
90#include "sh_prelink.h"
91#include "sh_sem.h"
92#endif
93
94#undef FIL__
95#define FIL__ _("samhain.c")
96
97
98/**************************************************
99 *
100 * Needed to compile the key into the code.
101 *
102 **************************************************/
103
104extern UINT32 ErrFlag[2];
105#include "sh_MK.h"
106
107/**************************************************
108 *
109 * Variables for signal handling.
110 *
111 **************************************************/
112
113volatile int sig_raised;
114volatile int sig_urgent;
115volatile int sig_debug_switch; /* SIGUSR1 */
116volatile int sig_suspend_switch; /* SIGUSR2 */
117volatile int sh_global_suspend_flag;
118volatile int sig_fresh_trail; /* SIGIOT */
119volatile int sh_thread_pause_flag = S_FALSE;
120volatile int sig_config_read_again; /* SIGHUP */
121volatile int sig_terminate; /* SIGQUIT */
122volatile int sig_termfast; /* SIGTERM */
123volatile int sig_force_check; /* SIGTTOU */
124volatile int sig_force_silent; /* SIGTSTP */
125volatile int sh_global_check_silent;
126volatile int sh_load_delta_flag;
127long int eintr__result;
128char sh_sig_msg[SH_MINIBUF];
129
130
131#ifdef SH_STEALTH
132/**************************************************
133 *
134 * The following set of functions is required for
135 * the 'stealth' mode.
136 *
137 **************************************************/
138
139#ifndef SH_MAX_GLOBS
140#define SH_MAX_GLOBS 16
141#endif
142
143#ifndef GLOB_LEN
144#define GLOB_LEN 511
145#endif
146
147#ifdef HAVE_PTHREAD
148struct gt {
149 size_t g_count;
150 char * g_glob;
151};
152
153pthread_key_t g_key;
154
155int sh_g_thread()
156{
157 struct gt * ptr = calloc(1,sizeof(struct gt));
158 if (!ptr)
159 return -1;
160 ptr->g_count = 0;
161 ptr->g_glob = calloc(1, SH_MAX_GLOBS * (GLOB_LEN+1));
162 if (!(ptr->g_glob))
163 {
164 free(ptr);
165 return -1;
166 }
167 return pthread_setspecific(g_key, ptr);
168}
169
170void sh_g_destroy(void * data)
171{
172 struct gt * ptr = (struct gt *) data;
173 free(ptr->g_glob);
174 free(ptr);
175 return;
176}
177
178void sh_g_init(void)
179{
180#if !defined(USE_SYSTEM_MALLOC) && defined(USE_MALLOC_LOCK)
181 extern int dnmalloc_pthread_init(void);
182 dnmalloc_pthread_init();
183#endif
184
185 if (0 != pthread_key_create(&g_key, sh_g_destroy))
186 {
187 perror("1");
188 exit(EXIT_FAILURE);
189 }
190
191 if (0 != sh_g_thread())
192 {
193 perror("2");
194 exit(EXIT_FAILURE);
195 }
196 return;
197}
198#define SH_G_INIT sh_g_init()
199#else
200#define SH_G_INIT ((void)0)
201#endif
202
203char * globber(const char * str)
204{
205 size_t i;
206 size_t j;
207
208#ifndef HAVE_PTHREAD
209 static size_t count = 0;
210 static char glob[SH_MAX_GLOBS * (GLOB_LEN+1)];
211#else
212 struct gt * ptr = pthread_getspecific(g_key);
213 size_t count;
214 char * glob;
215
216 if (ptr) {
217 count = ptr->g_count;
218 glob = ptr->g_glob;
219 } else {
220 return NULL;
221 }
222#endif
223
224 if (str != NULL)
225 j = strlen(str);
226 else
227 return NULL;
228
229 ASSERT((j <= GLOB_LEN), _("j <= GLOB_LEN"))
230
231 if (j > GLOB_LEN)
232 j = GLOB_LEN;
233
234 /* Overwrap the buffer.
235 */
236 if ( (count + j) >= (SH_MAX_GLOBS * (GLOB_LEN+1)))
237 {
238 count = 0;
239 }
240
241 for (i = 0; i < j; ++i)
242 {
243 if (str[i] != '\n' && str[i] != '\t' && str[i] != '\r' && str[i] != '"')
244 glob[count + i] = str[i] ^ XOR_CODE;
245 else
246 glob[count + i] = str[i];
247 }
248 glob[count + j] = '\0';
249
250 i = count;
251#ifdef HAVE_PTHREAD
252 ptr->g_count = count + j + 1;
253#else
254 count = count + j + 1;
255#endif
256 return &glob[i];
257}
258
259void sh_do_encode (char * str, int len)
260{
261 register int i;
262
263 /* this is a symmetric operation
264 */
265 for (i = 0; i < len; ++i)
266 {
267 str[i] = str[i] ^ XOR_CODE;
268 }
269 return;
270}
271
272#else
273/* not stealth */
274#define SH_G_INIT ((void)0)
275#endif
276
277/**************************************************
278 *
279 * Global variables.
280 *
281 **************************************************/
282
283sh_struct sh;
284/*@null@*/ sh_key_t * skey = NULL;
285
286extern unsigned char TcpFlag[8][PW_LEN+1];
287
288/**************************************************
289 *
290 * Initializing.
291 *
292 **************************************************/
293
294static int is_samhainctl_init = S_FALSE;
295
296static
297void sh_init (void)
298{
299 unsigned char * dez = NULL;
300 int i;
301#if defined(SH_WITH_MAIL)
302 char * p;
303 char q[SH_PATHBUF];
304#endif
305
306 SL_ENTER(_("sh_init"));
307
308#ifdef MKA_09
309 ErrFlag[0] |= (1 << 8);
310#endif
311#ifdef MKA_10
312 ErrFlag[0] |= (1 << 9);
313#endif
314#ifdef MKA_11
315 ErrFlag[0] |= (1 << 10);
316#endif
317#ifdef MKA_12
318 ErrFlag[0] |= (1 << 11);
319#endif
320
321 sh.delayload = 0;
322
323#ifdef MKA_13
324 ErrFlag[0] |= (1 << 12);
325#endif
326#ifdef MKA_14
327 ErrFlag[0] |= (1 << 13);
328#endif
329#ifdef MKA_15
330 ErrFlag[0] |= (1 << 14);
331#endif
332#ifdef MKA_16
333 ErrFlag[0] |= (1 << 15);
334#endif
335
336 /* Signal handling.
337 */
338 sig_raised = 0;
339 sig_config_read_again = 0; /* SIGHUP */
340 sig_debug_switch = 0; /* SIGUSR1 */
341 sig_suspend_switch = 0; /* SIGUSR2 */
342 sh_global_suspend_flag = 0; /* SIGUSR2 */
343 sig_fresh_trail = 0; /* SIGIOT */
344 sig_terminate = 0; /* SIGQUIT */
345 sig_termfast = 0; /* SIGTERM */
346 sig_force_check = 0; /* SIGTTOU */
347 sig_force_silent = 0; /* SIGTSTP */
348 sh_global_check_silent = 0;
349 sh_load_delta_flag = 0;
350 sh_sig_msg[4] = '\0';
351 sh_sig_msg[3] = 'e';
352 sh_sig_msg[2] = 'n';
353 sh_sig_msg[1] = 'o';
354 sh_sig_msg[0] = 'N';
355
356#ifdef MKB_01
357 ErrFlag[1] |= (1 << 0);
358#endif
359#ifdef MKB_02
360 ErrFlag[1] |= (1 << 1);
361#endif
362#ifdef MKB_03
363 ErrFlag[1] |= (1 << 2);
364#endif
365#ifdef MKB_04
366 ErrFlag[1] |= (1 << 3);
367#endif
368#ifdef MKB_05
369 ErrFlag[1] |= (1 << 4);
370#endif
371#ifdef MKB_06
372 ErrFlag[1] |= (1 << 5);
373#endif
374#ifdef MKB_07
375 ErrFlag[1] |= (1 << 6);
376#endif
377#ifdef MKB_08
378 ErrFlag[1] |= (1 << 7);
379#endif
380
381#if defined(SH_WITH_SERVER) && !defined(SH_WITH_CLIENT)
382 strncpy(sh.prg_name, _("Yule"), 8);
383 sh.prg_name[4] = '\0';
384#else
385 strncpy(sh.prg_name, _("Samhain"), 8);
386 sh.prg_name[7] = '\0';
387#endif
388
389 sh.pid = (UINT64) getpid();
390
391 sh.outpath = NULL;
392
393 /* The flags.
394 */
395 if (is_samhainctl_init == S_FALSE)
396 sh.flag.checkSum = SH_CHECK_NONE;
397 sh.flag.update = S_FALSE;
398 sh.flag.opts = S_FALSE;
399 sh.flag.started = S_FALSE;
400 if (is_samhainctl_init == S_FALSE)
401 sh.flag.isdaemon = S_FALSE;
402 sh.flag.isserver = S_FALSE;
403 sh.flag.islocked = S_FALSE;
404 sh.flag.smsg = S_FALSE;
405 sh.flag.log_start = S_TRUE;
406 sh.flag.reportonce = S_TRUE;
407 sh.flag.fulldetail = S_FALSE;
408 sh.flag.audit = S_FALSE;
409 sh.flag.nice = 0;
410 sh.flag.aud_mask = 0xFFFFFFFFUL;
411 sh.flag.client_severity = S_FALSE;
412 sh.flag.client_class = S_FALSE;
413 sh.flag.hidefile = S_FALSE;
414 sh.flag.loop = S_FALSE;
415 sh.flag.inotify = 0;
416
417#ifdef MKB_09
418 ErrFlag[1] |= (1 << 8);
419#endif
420#ifdef MKB_10
421 ErrFlag[1] |= (1 << 9);
422#endif
423#ifdef MKB_11
424 ErrFlag[1] |= (1 << 10);
425#endif
426#ifdef MKB_12
427 ErrFlag[1] |= (1 << 11);
428#endif
429#ifdef MKB_13
430 ErrFlag[1] |= (1 << 12);
431#endif
432#ifdef MKB_14
433 ErrFlag[1] |= (1 << 13);
434#endif
435#ifdef MKB_15
436 ErrFlag[1] |= (1 << 14);
437#endif
438#ifdef MKB_16
439 ErrFlag[1] |= (1 << 15);
440#endif
441
442 /* The stats.
443 */
444 sh.statistics.bytes_speed = 0;
445 sh.statistics.bytes_hashed = 0;
446 sh.statistics.files_report = 0;
447 sh.statistics.files_error = 0;
448 sh.statistics.files_nodir = 0;
449
450 sh.statistics.mail_success = 0;
451 sh.statistics.mail_failed = 0;
452 sh.statistics.time_start = time(NULL);
453 sh.statistics.time_check = (time_t) 0;
454
455#ifdef MKC_01
456 ErrFlag[0] |= (1 << 16);
457#endif
458#ifdef MKC_02
459 ErrFlag[0] |= (1 << 17);
460#endif
461#ifdef MKC_03
462 ErrFlag[0] |= (1 << 18);
463#endif
464#ifdef MKC_04
465 ErrFlag[0] |= (1 << 19);
466#endif
467#ifdef MKC_05
468 ErrFlag[0] |= (1 << 20);
469#endif
470#ifdef MKC_06
471 ErrFlag[0] |= (1 << 21);
472#endif
473#ifdef MKC_07
474 ErrFlag[0] |= (1 << 22);
475#endif
476#ifdef MKC_08
477 ErrFlag[0] |= (1 << 23);
478#endif
479
480
481 /* The local host.
482 */
483 (void) sl_strlcpy (sh.host.name, _("localhost"), SH_MINIBUF);
484 sh.host.system[0] = '\0'; /* flawfinder: ignore *//* ff bug */
485 sh.host.release[0] = '\0';
486 sh.host.machine[0] = '\0';
487
488#ifdef MKC_09
489 ErrFlag[0] |= (1 << 24);
490#endif
491#ifdef MKC_10
492 ErrFlag[0] |= (1 << 25);
493#endif
494#ifdef MKC_11
495 ErrFlag[0] |= (1 << 26);
496#endif
497#ifdef MKC_12
498 ErrFlag[0] |= (1 << 27);
499#endif
500#ifdef MKC_13
501 ErrFlag[0] |= (1 << 28);
502#endif
503#ifdef MKC_14
504 ErrFlag[0] |= (1 << 29);
505#endif
506#ifdef MKC_15
507 ErrFlag[0] |= (1 << 30);
508#endif
509#ifdef MKC_16
510 ErrFlag[0] |= (1UL << 31);
511#endif
512
513 /* The paths.
514 */
515 (void) sl_strlcpy (sh.conf.path, DEFAULT_CONFIGFILE, SH_PATHBUF);
516 sh.conf.hash[0] = '\0';
517 (void) sl_strlcpy (sh.data.path, DEFAULT_DATA_FILE, SH_PATHBUF);
518 sh.data.hash[0] = '\0';
519 sh.exec.path[0] = '\0';
520 sh.exec.hash[0] = '\0';
521
522#ifdef MKD_01
523 ErrFlag[1] |= (1 << 16);
524#endif
525#ifdef MKD_02
526 ErrFlag[1] |= (1 << 17);
527#endif
528#ifdef MKD_03
529 ErrFlag[1] |= (1 << 18);
530#endif
531#ifdef MKD_04
532 ErrFlag[1] |= (1 << 19);
533#endif
534#ifdef MKD_05
535 ErrFlag[1] |= (1 << 20);
536#endif
537#ifdef MKD_06
538 ErrFlag[1] |= (1 << 21);
539#endif
540#ifdef MKD_07
541 ErrFlag[1] |= (1 << 22);
542#endif
543#ifdef MKD_08
544 ErrFlag[1] |= (1 << 23);
545#endif
546
547 /* The addresses.
548 */
549#if defined(SH_WITH_MAIL)
550 if (0 != strcmp (DEFAULT_MAILADDRESS, _("NULL")))
551 {
552#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_STRTOK_R)
553 char * saveptr;
554 (void) sl_strncpy(q, DEFAULT_MAILADDRESS, SH_PATHBUF);
555 p = strtok_r (q, ", \t", &saveptr);
556 if (p)
557 {
558 (void) sh_nmail_add_compiled_recipient (p);
559 while (NULL != (p = strtok_r (NULL, ", \t", &saveptr)))
560 (void) sh_nmail_add_compiled_recipient (p);
561 }
562#else
563 (void) sl_strncpy(q, DEFAULT_MAILADDRESS, SH_PATHBUF);
564 p = strtok (q, ", \t");
565 if (p)
566 {
567 (void) sh_nmail_add_compiled_recipient (p);
568 while (NULL != (p = strtok (NULL, ", \t")))
569 (void) sh_nmail_add_compiled_recipient (p);
570 }
571#endif
572 }
573#endif
574
575 if (0 == strcmp (ALT_TIMESERVER, _("NULL")))
576 sh.srvtime.alt[0] = '\0';
577 else
578 (void) sl_strlcpy (sh.srvtime.alt, ALT_TIMESERVER, SH_PATHBUF);
579 if (0 == strcmp (DEFAULT_TIMESERVER, _("NULL")))
580 sh.srvtime.name[0] = '\0';
581 else
582 (void) sl_strlcpy (sh.srvtime.name, DEFAULT_TIMESERVER, SH_PATHBUF);
583
584
585 if (0 == strcmp (ALT_LOGSERVER, _("NULL")))
586 sh.srvexport.alt[0] = '\0';
587 else
588 (void) sl_strlcpy (sh.srvexport.alt, ALT_LOGSERVER, SH_PATHBUF);
589 if (0 == strcmp (DEFAULT_LOGSERVER, _("NULL")))
590 sh.srvexport.name[0] = '\0';
591 else
592 (void) sl_strlcpy (sh.srvexport.name, DEFAULT_LOGSERVER, SH_PATHBUF);
593
594
595 if (0 == strcmp (DEFAULT_ERRLOCK, _("NULL")))
596 sh.srvlog.alt[0] = '\0';
597 else
598 (void) sl_strlcpy (sh.srvlog.alt, DEFAULT_ERRLOCK, SH_PATHBUF);
599 if (0 == strcmp (DEFAULT_ERRFILE, _("NULL")))
600 sh.srvlog.name[0] = '\0';
601 else
602 (void) sl_strlcpy (sh.srvlog.name, DEFAULT_ERRFILE, SH_PATHBUF);
603
604 if (0 == strcmp (ALT_CONSOLE, _("NULL")))
605 sh.srvcons.alt[0] = '\0';
606 else
607 (void) sl_strlcpy (sh.srvcons.alt, ALT_CONSOLE, SH_PATHBUF);
608#ifndef DEFAULT_CONSOLE
609 (void) sl_strlcpy (sh.srvcons.name, _("/dev/console"), SH_PATHBUF);
610#else
611 if (0 == strcmp (DEFAULT_CONSOLE, _("NULL")))
612 (void) sl_strlcpy (sh.srvcons.name, _("/dev/console"), SH_PATHBUF);
613 else
614 (void) sl_strlcpy (sh.srvcons.name, DEFAULT_CONSOLE, SH_PATHBUF);
615#endif
616
617#ifdef MKD_09
618 ErrFlag[1] |= (1 << 24);
619#endif
620#ifdef MKD_10
621 ErrFlag[1] |= (1 << 25);
622#endif
623#ifdef MKD_11
624 ErrFlag[1] |= (1 << 26);
625#endif
626#ifdef MKD_12
627 ErrFlag[1] |= (1 << 27);
628#endif
629#ifdef MKD_13
630 ErrFlag[1] |= (1 << 28);
631#endif
632#ifdef MKD_14
633 ErrFlag[1] |= (1 << 29);
634#endif
635#ifdef MKD_15
636 ErrFlag[1] |= (1 << 30);
637#endif
638#ifdef MKD_16
639 ErrFlag[1] |= (1UL << 31);
640#endif
641
642
643 /* The timers.
644 */
645 sh.fileCheck.alarm_last = 0;
646 sh.fileCheck.alarm_interval = 600; /* ten minutes */
647
648 sh.mailTime.alarm_last = 0;
649 sh.mailTime.alarm_interval = 86400;
650
651 sh.mailNum.alarm_last = 0;
652 sh.mailNum.alarm_interval = 10;
653
654 sh.looptime = 60;
655
656#ifdef SCREW_IT_UP
657 sh.sigtrap_max_duration = 500000; /* 500ms */
658#endif
659
660 /* The struct to hold privileged information.
661 */
662 skey = calloc(1,sizeof(sh_key_t));
663 if (skey != NULL)
664 {
665
666 skey->mlock_failed = S_FALSE;
667 skey->rngI = BAD;
668 /* properly initialized later
669 */
670 skey->rng0[0] = 0x03; skey->rng0[1] = 0x09; skey->rng0[2] = 0x17;
671 skey->rng1[0] = 0x03; skey->rng1[1] = 0x09; skey->rng1[2] = 0x17;
672 skey->rng2[0] = 0x03; skey->rng2[1] = 0x09; skey->rng2[2] = 0x17;
673
674 for (i = 0; i < KEY_BYT; ++i)
675 skey->poolv[i] = '\0';
676
677 skey->poolc = 0;
678
679 skey->ErrFlag[0] = ErrFlag[0];
680 ErrFlag[0] = 0;
681 skey->ErrFlag[1] = ErrFlag[1];
682 ErrFlag[1] = 0;
683
684 dez = &(TcpFlag[POS_TF-1][0]);
685 for (i = 0; i < PW_LEN; ++i)
686 {
687 skey->pw[i] = (char) (*dez);
688 (*dez) = '\0';
689 ++dez;
690 }
691
692 skey->sh_sockpass[0] = '\0';
693 skey->sigkey_old[0] = '\0';
694 skey->sigkey_new[0] = '\0';
695 skey->mailkey_old[0] = '\0';
696 skey->mailkey_new[0] = '\0';
697 skey->crypt[0] = '\0'; /* flawfinder: ignore *//* ff bug */
698 skey->session[0] = '\0';
699 skey->vernam[0] = '\0';
700 }
701 else
702 {
703 perror(_("sh_init"));
704 _exit (EXIT_FAILURE);
705 }
706
707 sh_unix_memlock();
708 SL_RET0(_("sh_init"));
709}
710
711
712#if defined(HAVE_MLOCK) && !defined(HAVE_BROKEN_MLOCK)
713#include <sys/mman.h>
714#endif
715
716#if defined(SH_USE_XML)
717extern int sh_log_file (char * message, char * inet_peer);
718#endif
719
720/*******************************************************
721 *
722 * Exit Handler
723 *
724 *******************************************************/
725static void exit_handler(void)
726{
727 /* --- Clean up modules, if any. ---
728 */
729#if defined(SH_WITH_CLIENT) || defined(SH_STANDALONE)
730 int modnum;
731#endif
732#if defined(SH_WITH_SERVER)
733 extern int sh_socket_remove (void);
734 extern int sh_html_zero();
735#endif
736
737#if defined(SH_WITH_SERVER)
738 sh_socket_remove ();
739#endif
740
741#if defined(SH_WITH_CLIENT) || defined(SH_STANDALONE)
742 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
743 {
744 if (modList[modnum].initval == SH_MOD_ACTIVE)
745 (void) modList[modnum].mod_cleanup();
746 }
747#ifdef HAVE_PTHREAD
748 sh_pthread_cancel_all();
749#endif
750#endif
751
752 /* --- Push out all pending messages. ---
753 */
754#if defined(SH_WITH_MAIL)
755 if (sh.mailNum.alarm_last > 0)
756 {
757 (void) sh_nmail_flush ();
758 }
759#endif
760
761 /* --- Write the server stat. ---
762 */
763#if defined(SH_WITH_SERVER)
764 /* zero out the status file at exit, such that the status
765 * of client becomes unknown in the beltane interface
766 */
767 sh_html_zero();
768#endif
769
770 /* --- Clean up memory to check for problems. ---
771 */
772#ifdef MEM_DEBUG
773#if defined(SH_WITH_CLIENT) || defined(SH_STANDALONE)
774 sh_files_deldirstack ();
775 sh_files_delfilestack ();
776 sh_files_delglobstack ();
777 sh_hash_hashdelete();
778 sh_files_hle_reg (NULL);
779 /*
780 * Only flush on exit if running as deamon.
781 * Otherwise we couldn't run another instance
782 * while the deamon is running (would leave the
783 * deamon with flushed ruleset).
784 */
785 if (sh.flag.isdaemon == S_TRUE)
786 {
787 sh_audit_delete_all ();
788 }
789#endif
790#if defined(SH_WITH_SERVER)
791 sh_xfer_free_all ();
792#endif
793#if defined(SH_WITH_MAIL)
794 sh_nmail_free();
795#endif
796 delete_cache();
797 sh_userid_destroy ();
798 sh_mem_stat();
799#endif
800
801#ifdef MEM_DEBUG
802 sh_unix_count_mlock();
803#endif
804
805 /* --- Checksum of executable. ---
806 */
807 {
808 volatile int sig_store = sig_termfast;
809
810 sig_termfast = 0;
811 (void) sh_unix_self_check();
812 sig_termfast = sig_store;
813 }
814
815
816 /* --- Exit Message. ---
817 */
818 if (sh.flag.exit == EXIT_FAILURE && !strcmp(sh_sig_msg, _("None")))
819 sl_strlcpy(sh_sig_msg, _("exit_failure"), SH_MINIBUF);
820 if (sh.flag.exit == EXIT_SUCCESS && !strcmp(sh_sig_msg, _("None")))
821 sl_strlcpy(sh_sig_msg, _("exit_success"), SH_MINIBUF);
822 sh_error_handle ((-1), FIL__, __LINE__, sh.flag.exit, MSG_EXIT_NORMAL,
823 sh.prg_name, sh_sig_msg);
824#ifdef SH_USE_XML
825 (void) sh_log_file (NULL, NULL);
826#endif
827
828
829 /* --- Restrict error logging to stderr. ---
830 */
831 close_ipc ();
832 sh_error_only_stderr (S_TRUE);
833
834 /* --- Remove lock, delete critical information. ---
835 */
836 (void) sh_unix_rm_lock_file (sh.srvlog.name);
837 if (sh.flag.isdaemon == S_TRUE)
838 (void) sh_unix_rm_pid_file ();
839 if (skey != NULL)
840 memset (skey, (int) '\0', sizeof(sh_key_t));
841
842 /* --- Exit. ---
843 */
844 SL_RET0(_("exit_handler"));
845}
846
847/***********************************************************
848 *
849 */
850#ifndef SIGHUP
851#define SIGHUP 1
852#endif
853#ifndef SIGTERM
854#define SIGTERM 15
855#endif
856#ifndef SIGKILL
857#define SIGKILL 9
858#endif
859
860#if defined(__linux__) || defined(sun) || defined(__sun) || defined(__sun__)
861#include <dirent.h>
862static pid_t * procdirSamhain (void)
863{
864 pid_t * pidlist;
865 struct dirent * d;
866 DIR * dp;
867 long ino;
868 struct stat buf;
869 int i;
870 pid_t pid, mypid = getpid();
871 char * tail;
872 char exef[128];
873
874 if (0 != stat(SH_INSTALL_PATH, &buf))
875 {
876 return NULL;
877 }
878
879 ino = (long) buf.st_ino;
880
881 if (NULL == (dp = opendir(_("/proc"))))
882 {
883 /* cppcheck-suppress resourceLeak */
884 return NULL;
885 }
886
887 SH_MUTEX_LOCK(mutex_readdir);
888
889 pidlist = calloc(1, sizeof(pid_t) * 65535);
890 if (!pidlist)
891 goto unlock_and_out;
892
893 for (i = 0; i < 65535; ++i) pidlist[i] = 0;
894
895 i = 0;
896 while (NULL != (d = readdir(dp)) && i < 65535)
897 {
898 if (0 != strcmp(d->d_name, ".") && 0 != strcmp(d->d_name, ".."))
899 {
900 errno = 0;
901 pid = (pid_t) strtol (d->d_name, &tail, 0);
902 if (*tail != '\0' || errno != 0)
903 continue;
904 if (pid == mypid)
905 continue;
906#if defined(__linux__)
907 sprintf(exef, _("/proc/%d/exe"), (int) pid); /* known to fit */
908#else
909 sprintf(exef, _("/proc/%d/object/a.out"), /* known to fit */
910 (int) pid);
911#endif
912 if (0 == stat(exef, &buf) && ino == (long) buf.st_ino)
913 { pidlist[i] = (pid_t) pid; ++i; }
914 }
915 }
916
917 unlock_and_out:
918 ;
919 SH_MUTEX_UNLOCK(mutex_readdir);
920
921 closedir(dp);
922 return pidlist;
923}
924#else
925static pid_t * procdirSamhain (void)
926{
927 return NULL;
928}
929#endif
930
931static int killprocSamhain (pid_t pid)
932{
933 int i;
934
935 /* fprintf(stderr, "Killing %d\n", pid); */
936 if (pid > 0 && 0 == kill (pid, SIGTERM))
937 {
938 for (i = 0; i < 16; ++i)
939 {
940 (void) retry_msleep(1, 0);
941 if (0 != kill (pid, 0) && errno == ESRCH)
942 return (0);
943 }
944
945 (void) kill (pid, SIGKILL);
946 return (0);
947 }
948 if (pid > 0)
949 {
950 if (errno == ESRCH)
951 return 7;
952 if (errno == EPERM)
953 return 4;
954 return 1;
955 }
956 else
957 return (7);
958}
959
960static pid_t pidofSamhain (int flag)
961{
962 FILE * fp;
963 char line[256];
964 char * tail;
965 char * p;
966 pid_t pid;
967 long inpid;
968 struct stat buf;
969
970 fp = fopen (DEFAULT_ERRLOCK, "r");
971
972 if (!fp)
973 { if (errno != ENOENT) perror(_("fopen")); return 0; }
974 if (NULL == fgets(line, sizeof(line), fp))
975 { perror(_("fgets")); (void) sl_fclose(FIL__, __LINE__, fp); return 0; }
976 (void) sl_fclose(FIL__, __LINE__, fp);
977 p = line;
978 while (*p == ' ' || *p == '\f' || *p == '\n' ||
979 *p == '\r' || *p == '\t' || *p == '\v')
980 ++p;
981 errno = 0;
982 inpid = strtol (p, &tail, 0);
983 if (p == tail || errno != 0)
984 { perror(_("strtol")); return 0; }
985
986 pid = (pid_t) inpid;
987 if (inpid != (long) pid)
988 { perror(_("strtol")); return 0; }
989
990 /* remove stale pid file
991 */
992 if (flag == 1 && pid > 0 && 0 != kill(pid, 0) && errno == ESRCH)
993 {
994 if /*@-unrecog@*/ (0 == lstat (DEFAULT_ERRLOCK, &buf))/*@+unrecog@*/
995 {
996 if /*@-usedef@*/(S_ISREG(buf.st_mode))/*@+usedef@*/
997 {
998 (void) unlink(DEFAULT_ERRLOCK);
999 }
1000 }
1001 else
1002 {
1003 perror(_("lstat")); return 0;
1004 }
1005 pid = 0;
1006 }
1007 return pid;
1008}
1009
1010/* 1: start 2:stop 3:reload 4:status
1011 */
1012/*@-exitarg@*/
1013static int samhainctl(int ctl, int * argc, char * argv[])
1014{
1015 char * fullpath;
1016 pid_t pid;
1017 int status;
1018 int res;
1019 pid_t respid;
1020 int times;
1021 char * argp[32];
1022 pid_t * pidlist;
1023 int i;
1024#ifdef WCONTINUED
1025 int wflags = WNOHANG|WUNTRACED|WCONTINUED;
1026#else
1027 int wflags = WNOHANG|WUNTRACED;
1028#endif
1029
1030 fullpath = strdup (SH_INSTALL_PATH);
1031 if (fullpath == NULL)
1032 { perror(_("strdup")); exit (1); }
1033
1034 argp[0] = strdup (SH_INSTALL_PATH);
1035 if (argp[0] == NULL)
1036 { perror(_("strdup")); exit (1); }
1037
1038 for (times = 1; times < 32; ++times) argp[times] = NULL;
1039
1040 res = (*argc > 32) ? 32 : *argc;
1041
1042 for (times = 2; times < res; ++times)
1043 {
1044 argp[times-1] = strdup (argv[times]);
1045 if (argp[times-1] == NULL)
1046 { perror(_("strdup")); exit (1); }
1047 }
1048
1049 if (ctl == 1)
1050 {
1051 pid = pidofSamhain(1);
1052
1053 if (pid != 0 && 0 == kill (pid, 0)) /* already started */
1054 exit (0);
1055
1056 pid = fork();
1057 switch (pid) {
1058 case ((pid_t) -1):
1059 perror(_("fork"));
1060 exit (1);
1061 case 0:
1062 if (0 != sl_close_fd (FIL__, __LINE__, 0))
1063 {
1064 _exit(4);
1065 }
1066 (void) execv(fullpath, argp); /* flawfinder: ignore *//* wtf? */
1067 if (errno == EPERM)
1068 _exit(4);
1069 else if (errno == ENOENT)
1070 _exit(5);
1071 _exit (1);
1072 default:
1073 times = 0;
1074 while (times < 300) {
1075 respid = waitpid(pid, &status, wflags);
1076 if ((pid_t)-1 == respid)
1077 {
1078 perror(_("waitpid"));
1079 exit (1);
1080 }
1081 else if (pid == respid)
1082 {
1083#ifndef USE_UNO
1084 if (0 != WIFEXITED(status))
1085 {
1086 res = WEXITSTATUS(status);
1087 exit (res == 0 ? 0 : res );
1088 }
1089 else
1090 exit (1);
1091#else
1092 exit (1);
1093#endif
1094 }
1095 ++times;
1096 (void) retry_msleep(1, 0);
1097 }
1098 exit (0); /* assume that it runs ok */
1099 }
1100 }
1101
1102 pid = pidofSamhain(0);
1103
1104 if (ctl == 2) /* stop */
1105 {
1106 pidlist = procdirSamhain ();
1107 if (pid == 0 && NULL == pidlist) /* pid file not found */
1108 {
1109 free(fullpath);
1110 return (0);
1111 }
1112
1113 status = 0;
1114 if (pid != 0)
1115 status = killprocSamhain(pid);
1116 if (pidlist != NULL)
1117 {
1118 i = 0;
1119 while (i < 65535 && pidlist[i] != 0)
1120 {
1121 if (pidlist[i] != pid)
1122 status = killprocSamhain(pidlist[i]);
1123 ++i;
1124 }
1125 }
1126 free(fullpath);
1127 if (status == 7)
1128 return 0;
1129 else
1130 return status;
1131 }
1132
1133 if (ctl == 3) /* reload */
1134 {
1135 if (pid == 0)
1136 exit (7);
1137 if (0 == kill (pid, SIGHUP))
1138 exit (0);
1139 else
1140 {
1141 if (errno == EPERM)
1142 exit (4);
1143 if (errno == ESRCH)
1144 exit (7);
1145 exit (1);
1146 }
1147 }
1148
1149 if (ctl == 4) /* status */
1150 {
1151 if (pid == 0)
1152 exit (3);
1153 if (0 == kill (pid, 0))
1154 exit (0);
1155 else
1156 {
1157 if (errno == EPERM)
1158 exit (4);
1159 if (errno == ESRCH)
1160 exit (1);
1161 }
1162 }
1163 free(fullpath); /* silence smatch false positive */
1164 exit (1); /* no exit handler installed yet */
1165 /*@notreached@*/
1166 return (0);
1167}
1168/*@+exitarg@*/
1169
1170#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1171#include "sh_schedule.h"
1172static sh_schedule_t * FileSchedOne = NULL;
1173static sh_schedule_t * FileSchedTwo = NULL;
1174
1175/* free a linked list of schedules
1176 */
1177static sh_schedule_t * free_sched (sh_schedule_t * isched)
1178{
1179 sh_schedule_t * current = isched;
1180 sh_schedule_t * next = NULL;
1181
1182 while (current != NULL)
1183 {
1184 next = current->next;
1185 SH_FREE(current);
1186 current = next;
1187 }
1188 return NULL;
1189}
1190
1191/* Add a new schedule to the linked list of schedules
1192 */
1193static sh_schedule_t * sh_set_schedule_int (const char * str,
1194 sh_schedule_t * FileSchedIn,
1195 /*@out@*/ int * status)
1196{
1197 sh_schedule_t * FileSched;
1198
1199 SL_ENTER(_("sh_set_schedule_int"));
1200
1201 if (0 == sl_strncmp(str, _("NULL"), 4))
1202 {
1203 (void) free_sched(FileSchedIn);
1204 FileSchedIn = NULL;
1205 *status = 0;
1206 SL_RETURN(NULL, _("sh_set_schedule_int"));
1207 }
1208
1209 FileSched = SH_ALLOC(sizeof(sh_schedule_t));
1210 *status = create_sched(str, FileSched);
1211 if (*status != 0)
1212 {
1213 SH_FREE(FileSched);
1214 FileSched = NULL;
1215 SL_RETURN(FileSchedIn , _("sh_set_schedule_int"));
1216 }
1217 else {
1218 FileSched->next = FileSchedIn;
1219 }
1220 SL_RETURN(FileSched , _("sh_set_schedule_int"));
1221}
1222
1223/* Add a new schedule to the linked list FileSchedOne
1224 */
1225int sh_set_schedule_one (const char * str)
1226{
1227 int status;
1228 FileSchedOne = sh_set_schedule_int (str, FileSchedOne, &status);
1229 return status;
1230}
1231
1232/* Add a new schedule to the linked list FileSchedTwo
1233 */
1234int sh_set_schedule_two (const char * str)
1235{
1236 int status;
1237 FileSchedTwo = sh_set_schedule_int (str, FileSchedTwo, &status);
1238 return status;
1239}
1240
1241static int sh_flag_silent = S_FALSE;
1242
1243int sh_set_silent_full (const char * str)
1244{
1245 int status = sh_util_flagval(str, &sh_flag_silent);
1246 return status;
1247}
1248
1249
1250void do_reconf()
1251{
1252 int status, modnum;
1253
1254 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_RECONF);
1255
1256 sh_thread_pause_flag = S_TRUE;
1257
1258 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
1259 {
1260 if (0 != (SH_MODFL_NEEDPAUSED & modList[modnum].flags) &&
1261 modList[modnum].initval == SH_MOD_THREAD)
1262 {
1263 int count = 50;
1264 while (count && 0 == (SH_MODFL_ISPAUSED & modList[modnum].flags))
1265 retry_msleep(0, 100), --count;
1266 }
1267 }
1268
1269#if defined(WITH_EXTERNAL)
1270 /* delete list of external tasks
1271 */
1272 (void) sh_ext_cleanup();
1273#endif
1274#if defined(SH_WITH_MAIL)
1275 sh_nmail_free();
1276#endif
1277
1278 /* delete the file list, make all database
1279 * entries visible (allignore = FALSE)
1280 */
1281 (void) sh_files_deldirstack ();
1282 (void) sh_files_delfilestack ();
1283 (void) sh_files_delglobstack ();
1284 (void) sh_ignore_clean ();
1285 (void) hash_full_tree ();
1286 sh_audit_delete_all ();
1287
1288
1289#if defined(SH_WITH_CLIENT)
1290 reset_count_dev_server();
1291#endif
1292#if defined(SH_WITH_CLIENT) || defined(SH_STANDALONE)
1293 sh_restrict_purge ();
1294
1295
1296 FileSchedOne = free_sched(FileSchedOne);
1297 FileSchedTwo = free_sched(FileSchedTwo);
1298
1299 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
1300 {
1301 /* sh_thread_pause_flag is true, and we block in lock
1302 * until check has returned, so we are sure check will
1303 * not run until sh_thread_pause_flag is set to false
1304 */
1305 /* if (modList[modnum].initval >= SH_MOD_ACTIVE) */
1306 (void) modList[modnum].mod_reconf();
1307 }
1308#endif
1309
1310 reset_count_dev_console();
1311 reset_count_dev_time();
1312
1313 (void) sh_unix_maskreset();
1314
1315#ifdef RELOAD_DATABASE
1316 sh_hash_hashdelete();
1317
1318 if (0 != sl_strcmp(file_path('D', 'R'), _("REQ_FROM_SERVER")))
1319 {
1320 char hashbuf[KEYBUF_SIZE];
1321 (void) sl_strlcpy(sh.data.hash,
1322 sh_tiger_hash (file_path('D', 'R'),
1323 TIGER_FILE, TIGER_NOLIM,
1324 hashbuf, sizeof(hashbuf)),
1325 KEY_LEN+1);
1326 }
1327#endif
1328 (void) sl_trust_purge_user();
1329 (void) sh_files_hle_reg (NULL);
1330 (void) sh_prelink_run (NULL, NULL, 0, 0);
1331
1332 /* --------------------------
1333 * --- READ CONFIGURATION ---
1334 * --------------------------
1335 */
1336 (void) sh_readconf_read ();
1337 sig_config_read_again = 0;
1338 (void) sh_files_setrec();
1339 (void) sh_files_test_setup();
1340 sh_audit_commit ();
1341
1342 if (0 != sh.flag.nice)
1343 {
1344#ifdef HAVE_SETPRIORITY
1345 setpriority(PRIO_PROCESS, 0, sh.flag.nice);
1346#else
1347 nice(sh.flag.nice);
1348#endif
1349 }
1350
1351 if (sh.flag.checkSum == SH_CHECK_INIT)
1352 {
1353 sh.flag.isdaemon = S_FALSE;
1354 sh.flag.loop = S_FALSE;
1355 }
1356
1357
1358 /* --- Initialize modules. ---
1359 */
1360 TPT((0, FIL__, __LINE__, _("msg=<Initialize modules.>\n")));
1361 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
1362 {
1363 status = modList[modnum].mod_init(&(modList[modnum]));
1364
1365 if (status < 0)
1366 {
1367 if (status == (-1)) {
1368 sh_error_handle (SH_ERR_NOTICE, FIL__, __LINE__,
1369 status, MSG_MOD_FAIL,
1370 _(modList[modnum].name),
1371 status+SH_MOD_OFFSET);
1372 } else {
1373 sh_error_handle ((-1), FIL__, __LINE__,
1374 status, MSG_MOD_FAIL,
1375 _(modList[modnum].name),
1376 status+SH_MOD_OFFSET);
1377 }
1378 modList[modnum].initval = SH_MOD_FAILED;
1379 }
1380 else
1381 {
1382 sh_error_handle ((-1), FIL__, __LINE__, status, MSG_MOD_OK,
1383 _(modList[modnum].name));
1384 modList[modnum].initval = status;
1385 }
1386 }
1387
1388 /* module is properly set up now
1389 */
1390 sh_thread_pause_flag = S_FALSE;
1391
1392 return;
1393}
1394
1395static void check_signals (volatile int *flag_check_1,
1396 volatile int * flag_check_2)
1397{
1398 if (sig_raised > 0)
1399 {
1400
1401 TPT((0, FIL__, __LINE__, _("msg=<Process a signal.>\n")))
1402
1403 if (sig_termfast == 1) /* SIGTERM */
1404 {
1405 TPT((0, FIL__, __LINE__, _("msg=<Terminate.>\n")));
1406 --sig_raised; --sig_urgent;
1407 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
1408 }
1409
1410 if (sig_force_check == 1) /* SIGTTOU / SIGTSTP */
1411 {
1412 TPT((0, FIL__, __LINE__, _("msg=<Check run triggered.>\n")));
1413 *flag_check_1 = 1; *flag_check_2 = 1;
1414 sig_force_check = 0; --sig_raised;
1415 if (sig_force_silent)
1416 {
1417 sig_force_silent = 0;
1418 sh_global_check_silent = (sh_flag_silent == S_FALSE) ? SH_SILENT_STD : SH_SILENT_FULL;
1419 }
1420 sh_sem_trylock();
1421 }
1422
1423 if (sig_config_read_again == 1 && /* SIGHUP */
1424 sh_global_suspend_flag == 0)
1425 {
1426 TPT((0, FIL__, __LINE__, _("msg=<Re-read configuration.>\n")));
1427 do_reconf();
1428 --sig_raised;
1429 }
1430
1431 if (sig_fresh_trail == 1) /* SIGIOT */
1432 {
1433 if (sh_global_suspend_flag == 0)
1434 {
1435 SH_MUTEX_LOCK(mutex_thread_nolog);
1436
1437 /* Logfile access
1438 */
1439#ifdef SH_USE_XML
1440 (void) sh_log_file (NULL, NULL);
1441#endif
1442 TPT((0, FIL__, __LINE__, _("msg=<Logfile stop/restart.>\n")));
1443 sh_error_only_stderr (S_TRUE);
1444 (void) sh_unix_rm_lock_file(sh.srvlog.name);
1445 (void) retry_msleep(3, 0);
1446 sh.flag.log_start = S_TRUE;
1447 sh_error_only_stderr (S_FALSE);
1448 sh_thread_pause_flag = S_FALSE;
1449 sig_fresh_trail = 0;
1450 --sig_raised;
1451 SH_MUTEX_UNLOCK(mutex_thread_nolog);
1452 }
1453 }
1454
1455 if (sig_terminate == 1) /* SIGQUIT */
1456 {
1457 TPT((0, FIL__, __LINE__, _("msg=<Terminate.>\n")));
1458 strncpy (sh_sig_msg, _("Quit"), 20);
1459 --sig_raised;
1460 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
1461 }
1462
1463 if (sig_debug_switch == 1) /* SIGUSR1 */
1464 {
1465 TPT((0, FIL__, __LINE__, _("msg=<Debug switch.>\n")));
1466 sh_error_dbg_switch();
1467 sig_debug_switch = 0;
1468 --sig_raised;
1469 }
1470
1471 if (sig_suspend_switch > 0) /* SIGUSR2 */
1472 {
1473 TPT((0, FIL__, __LINE__, _("msg=<Suspend switch.>\n")));
1474 if (sh_global_suspend_flag != 1) {
1475 SH_MUTEX_LOCK_UNSAFE(mutex_thread_nolog);
1476 sh_global_suspend_flag = 1;
1477 sh_error_handle((-1), FIL__, __LINE__, 0, MSG_SUSPEND,
1478 sh.prg_name);
1479 } else {
1480 sh_global_suspend_flag = 0;
1481 SH_MUTEX_UNLOCK_UNSAFE(mutex_thread_nolog);
1482 }
1483 --sig_suspend_switch;
1484 --sig_raised; --sig_urgent;
1485 }
1486
1487 if (sh_load_delta_flag > 0 &&
1488 sh_global_suspend_flag == 0) /* DELTA Command */
1489 {
1490 if (0 == sh_dbIO_load_delta())
1491 {
1492 --sh_load_delta_flag; --sig_raised;
1493 }
1494 }
1495
1496 sig_raised = (sig_raised < 0) ? 0 : sig_raised;
1497 sig_urgent = (sig_urgent < 0) ? 0 : sig_urgent;
1498 TPT((0, FIL__, __LINE__, _("msg=<End signal processing.>\n")));
1499 }
1500 return;
1501}
1502
1503void check_for_delta_db()
1504{
1505 /* Need to contact the server.
1506 */
1507 if (sh_global_check_silent < SH_SILENT_FULL)
1508 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_CHECK_2);
1509
1510 if (sig_raised > 0 && sh_load_delta_flag > 0) /* DELTA Command */
1511 {
1512 /* There was a DELTA Command
1513 */
1514 if (0 == sh_dbIO_load_delta())
1515 {
1516 --sh_load_delta_flag; --sig_raised;
1517 }
1518 }
1519 return;
1520}
1521
1522#endif
1523
1524/*******************************************************
1525 *
1526 * Main program
1527 *
1528 *******************************************************/
1529#if !defined(SH_CUTEST)
1530int main(int argc, char * argv[])
1531#else
1532int undef_main(int argc, char * argv[])
1533#endif
1534{
1535#if defined(INET_SYSLOG)
1536 extern int sh_xfer_create_syslog_socket (int flag);
1537#endif
1538#if defined(SH_WITH_SERVER)
1539 extern int sh_create_tcp_socket(void);
1540#endif
1541
1542#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1543 int modnum;
1544 time_t runtim;
1545 float st_1, st_2;
1546 int status;
1547 volatile long cct = 0; /* main loop iterations */
1548
1549 volatile int flag_check_1 = 0;
1550 volatile int flag_check_2 = 0;
1551
1552 int check_done = 0;
1553#endif
1554
1555 volatile time_t told;
1556 volatile time_t tcurrent;
1557 size_t tzlen;
1558 char * tzptr;
1559 int res;
1560
1561#if defined (SH_STEALTH_NOCL)
1562 char command_line[256];
1563 int my_argc = 0;
1564 char * my_argv[32];
1565#endif
1566
1567#if !defined(USE_SYSTEM_MALLOC)
1568 typedef void assert_handler_tp(const char * error, const char *file, int line);
1569 extern assert_handler_tp *dnmalloc_set_handler(assert_handler_tp *new);
1570 (void) dnmalloc_set_handler(safe_fatal);
1571#endif
1572
1573 SH_G_INIT; /* Must precede any use of _() */
1574
1575 SL_ENTER(_("main"));
1576
1577 /* --- Close all but first three file descriptors. ---
1578 */
1579 sh_unix_closeall(3, -1, S_FALSE); /* at program start */
1580
1581
1582 if (argc >= 2 && 0 != getuid() &&
1583 (0 == strcmp(argv[1], _("start")) ||
1584 0 == strcmp(argv[1], _("stop")) ||
1585 0 == strcmp(argv[1], _("reload")) ||
1586 0 == strcmp(argv[1], _("force-reload")) ||
1587 0 == strcmp(argv[1], _("status")) ||
1588 0 == strcmp(argv[1], _("restart"))))
1589 {
1590 return 4;
1591 }
1592
1593 if (argc >= 2 && 0 == getuid())
1594 {
1595 /* return codes:
1596 * 0 Success
1597 * 1 Can not send signal / start program
1598 * 2 Pid file does not exist
1599 */
1600 if (0 == strcmp(argv[1], _("start")))
1601 {
1602 (void) samhainctl (1, &argc, argv); /* does not return */
1603 }
1604 else if (0 == strcmp(argv[1], _("stop")))
1605 return (samhainctl (2, &argc, argv));
1606 else if (0 == strcmp(argv[1], _("reload")))
1607 (void) samhainctl (3, &argc, argv); /* does not return */
1608 else if (0 == strcmp(argv[1], _("force-reload")))
1609 (void) samhainctl (3, &argc, argv); /* does not return */
1610 else if (0 == strcmp(argv[1], _("status")))
1611 (void) samhainctl (4, &argc, argv); /* does not return */
1612 else if (0 == strcmp(argv[1], _("restart")))
1613 {
1614 res = samhainctl (2, &argc, argv);
1615 if (res == 0 || res == 7)
1616 {
1617 (void) samhainctl (1, &argc, argv); /* does not return */
1618 }
1619 else
1620 return (res);
1621 }
1622 }
1623
1624 /* if fd 0 is closed, presume that we want to be daemon and
1625 * run in check mode
1626 */
1627 if ((-1) == retry_fcntl(FIL__, __LINE__, 0, F_GETFL, 0) &&
1628 errno == EBADF)
1629 {
1630 sh.flag.opts = S_TRUE;
1631 (void) sh_unix_setdeamon(NULL);
1632#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1633 sh.flag.checkSum = SH_CHECK_CHECK;
1634 /* (void) sh_util_setchecksum(_("check")); */
1635#endif
1636 is_samhainctl_init = S_TRUE;
1637 sh.flag.opts = S_FALSE;
1638 }
1639
1640
1641 /* --- Install the exit handler. ---
1642 */
1643 (void) atexit(exit_handler);
1644
1645 /* --- Zero the mailer key, and fill it. ---
1646 */
1647 memset (ErrFlag, 0, 2*sizeof(UINT32));
1648
1649#ifdef MKA_01
1650 ErrFlag[0] |= (1 << 0);
1651#endif
1652#ifdef MKA_02
1653 ErrFlag[0] |= (1 << 1);
1654#endif
1655#ifdef MKA_03
1656 ErrFlag[0] |= (1 << 2);
1657#endif
1658#ifdef MKA_04
1659 ErrFlag[0] |= (1 << 3);
1660#endif
1661#ifdef MKA_05
1662 ErrFlag[0] |= (1 << 4);
1663#endif
1664#ifdef MKA_06
1665 ErrFlag[0] |= (1 << 5);
1666#endif
1667#ifdef MKA_07
1668 ErrFlag[0] |= (1 << 6);
1669#endif
1670#ifdef MKA_08
1671 ErrFlag[0] |= (1 << 7);
1672#endif
1673
1674#if defined(SCREW_IT_UP)
1675 BREAKEXIT(sh_sigtrap_prepare);
1676 (void) sh_sigtrap_prepare();
1677#endif
1678
1679 /* Save the timezone.
1680 */
1681 if (NULL != (tzptr = getenv("TZ"))) /* flawfinder: ignore */
1682 {
1683 tzlen = strlen(tzptr);
1684 if (tzlen < 1024)
1685 {
1686 sh.timezone = calloc(1, tzlen + 1);
1687 if (sh.timezone != NULL)
1688 (void) sl_strlcpy (sh.timezone, tzptr, tzlen + 1);
1689 }
1690 else
1691 sh.timezone = NULL;
1692 }
1693 else
1694 sh.timezone = NULL;
1695
1696
1697 /* -------- INIT --------
1698 */
1699 sh_unix_ign_sigpipe();
1700
1701 /* Restrict error logging to stderr.
1702 */
1703 sh_error_only_stderr (S_TRUE);
1704
1705 /* Check that first three descriptors are open.
1706 */
1707 if ( retry_fcntl(FIL__, __LINE__, 0, F_GETFL, 0) == (-1))
1708 (void) aud_open(FIL__, __LINE__, SL_NOPRIV, _("/dev/null"), O_RDWR, 0);
1709 if ( retry_fcntl(FIL__, __LINE__, 1, F_GETFL, 0) == (-1))
1710 (void) aud_open(FIL__, __LINE__, SL_NOPRIV, _("/dev/null"), O_RDWR, 1);
1711 if ( retry_fcntl(FIL__, __LINE__, 2, F_GETFL, 0) == (-1))
1712 (void) aud_open(FIL__, __LINE__, SL_NOPRIV, _("/dev/null"), O_RDWR, 2);
1713
1714 /* --- Set default values. ---
1715 */
1716 BREAKEXIT(sh_init);
1717 sh_init (); /* we are still privileged here, so we can mlock skey */
1718#if (defined (SH_WITH_SERVER) && !defined (SH_WITH_CLIENT))
1719 sh.flag.isserver = S_TRUE;
1720#endif
1721
1722 /* --- First check for an attached debugger (after setting
1723 sh.sigtrap_max_duration which has to be done before). ---
1724 */
1725 BREAKEXIT(sh_derr);
1726 (void) sh_derr();
1727
1728 /* --- Get local hostname. ---
1729 */
1730 BREAKEXIT(sh_unix_localhost);
1731 sh_unix_localhost();
1732
1733 /* --- Read the command line. ---
1734 */
1735 sh.flag.opts = S_TRUE;
1736
1737#if !defined(SH_STEALTH_NOCL)
1738 sh_argc_store = argc;
1739 sh_argv_store = argv;
1740 (void) sh_getopt_get (argc, argv);
1741#else
1742 if (argc > 1 && argv[1] != NULL &&
1743 strlen(argv[1]) > 0 && strlen(NOCL_CODE) > 0)
1744 {
1745 if ( 0 == strcmp(argv[1], NOCL_CODE) )
1746 {
1747#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_STRTOK_R)
1748 char * saveptr;
1749#endif
1750 my_argv[0] = argv[0]; ++my_argc;
1751 command_line[0] = '\0';
1752 if (NULL != fgets (command_line, sizeof(command_line), stdin))
1753 command_line[sizeof(command_line)-1] = '\0';
1754
1755 do {
1756#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_STRTOK_R)
1757 my_argv[my_argc] =
1758 strtok_r( (my_argc == 1) ? command_line : NULL, " \n", &saveptr);
1759#else
1760 my_argv[my_argc] =
1761 strtok( (my_argc == 1) ? command_line : NULL, " \n");
1762#endif
1763 if (my_argv[my_argc] != NULL) {
1764 ++my_argc;
1765 } else {
1766 break;
1767 }
1768 } while (my_argc < 32);
1769
1770 sh_argc_store = my_argc;
1771 sh_argv_store = my_argv;
1772
1773 (void) sh_getopt_get (my_argc, my_argv);
1774 }
1775 else
1776 {
1777 /* discard command line */
1778 /* _exit(EXIT_FAILURE) */ ;
1779 }
1780 }
1781#endif
1782 sh.flag.opts = S_FALSE;
1783
1784
1785 /* --- Get user info. ---
1786 */
1787 TPT((0, FIL__, __LINE__, _("msg=<Get user name.>\n")))
1788 if (0 != sh_unix_getUser ())
1789 {
1790 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_EXIT_ABORT1,
1791 sh.prg_name);
1792 aud_exit(FIL__, __LINE__, EXIT_FAILURE);
1793 }
1794
1795
1796 /* *****************************
1797 *
1798 * Read the configuration file.
1799 *
1800 * *****************************/
1801
1802 TPT((0, FIL__, __LINE__, _("msg=<Read the configuration file.>\n")))
1803 BREAKEXIT(sh_readconf_read);
1804 (void) sh_readconf_read ();
1805
1806 sh_calls_enable_sub();
1807
1808#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1809 if (sh.flag.checkSum == SH_CHECK_NONE)
1810 {
1811 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_E_SUBGEN,
1812 _("No action specified: init, update, or check"),
1813 _("main"));
1814 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_EXIT_ABORT1,
1815 sh.prg_name);
1816 aud_exit (FIL__, __LINE__, EXIT_FAILURE);
1817 }
1818#endif
1819
1820 /* do not append to database if run SUID
1821 */
1822 if ((sh.flag.checkSum == SH_CHECK_INIT) && (0 != sl_is_suid()))
1823 {
1824 (void) dlog(1, FIL__, __LINE__,
1825 _("Cannot initialize database when running with SUID credentials.\nYou need to run this with the user ID %d.\nYour current user ID is %d."),
1826 (int) geteuid(), (int) sh.real.uid);
1827 sh_error_handle ((-1), FIL__, __LINE__, EACCES, MSG_ACCESS,
1828 (long) sh.real.uid, sh.data.path);
1829 aud_exit(FIL__, __LINE__, EXIT_FAILURE);
1830 }
1831
1832 /* avoid daemon mode for initialization
1833 */
1834 if (sh.flag.checkSum == SH_CHECK_INIT)
1835 {
1836 sh.flag.isdaemon = S_FALSE;
1837 sh.flag.loop = S_FALSE;
1838 }
1839
1840 /* --- load database; checksum of database
1841 */
1842#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1843 if (0 == sh.delayload)
1844 sh_hash_init_and_checksum();
1845#endif
1846
1847 /* --- initialize signal handling etc.; fork daemon
1848 */
1849 if (sh_unix_init(sh.flag.isdaemon) == -1)
1850 {
1851 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_EXIT_ABORT1,
1852 sh.prg_name);
1853 aud_exit(FIL__, __LINE__, EXIT_FAILURE);
1854 }
1855
1856#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1857 if (sh.delayload)
1858 {
1859 sleep(sh.delayload);
1860 sh_hash_init_and_checksum();
1861 }
1862#endif
1863
1864 /* --- drop privileges eventually ---
1865 */
1866#if defined(SH_WITH_SERVER)
1867 sh_create_tcp_socket ();
1868#if defined(INET_SYSLOG)
1869 sh_xfer_create_syslog_socket (S_TRUE);
1870#endif
1871 SL_REQUIRE(sl_policy_get_real(DEFAULT_IDENT) == SL_ENONE,
1872 _("sl_policy_get_real(DEFAULT_IDENT) == SL_ENONE"));
1873#else
1874 SL_REQUIRE(sl_policy_get_user(DEFAULT_IDENT) == SL_ENONE,
1875 _("sl_policy_get_user(DEFAULT_IDENT) == SL_ENONE"));
1876#endif
1877
1878 /* --- Get user info (again). ---
1879 */
1880 TPT((0, FIL__, __LINE__, _("msg=<Get user name.>\n")))
1881 if (0 != sh_unix_getUser ())
1882 {
1883 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_EXIT_ABORT1,
1884 sh.prg_name);
1885 aud_exit(FIL__, __LINE__, EXIT_FAILURE);
1886 }
1887
1888 /* --- now check whether we really wanted it; if not, close ---
1889 */
1890#if defined(INET_SYSLOG) && defined(SH_WITH_SERVER)
1891 sh_xfer_create_syslog_socket (S_FALSE);
1892#endif
1893
1894
1895 /* --- Enable full error logging ---
1896 */
1897 sh_error_only_stderr (S_FALSE);
1898
1899 sh.flag.started = S_TRUE;
1900
1901 /****************************************************
1902 *
1903 * SERVER
1904 *
1905 ****************************************************/
1906
1907#if defined(SH_WITH_SERVER) && !defined(SH_WITH_CLIENT)
1908
1909#if (defined(WITH_GPG) || defined(WITH_PGP))
1910 /* log startup */
1911 sh_gpg_log_startup ();
1912#else
1913 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_START_1H,
1914 sh.prg_name, (long) sh.real.uid,
1915 (sh.flag.hidefile == S_TRUE) ?
1916 _("(hidden)") : file_path('C','R'),
1917 sh.conf.hash);
1918#endif
1919
1920#else
1921
1922 /****************************************************
1923 *
1924 * CLIENT/STANDALONE
1925 *
1926 ****************************************************/
1927
1928 BREAKEXIT(sh_error_handle);
1929
1930 if (sh.flag.checkSum == SH_CHECK_CHECK)
1931 {
1932#if (defined(WITH_GPG) || defined(WITH_PGP))
1933 /* log startup */
1934 sh_gpg_log_startup ();
1935#else
1936 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_START_2H,
1937 sh.prg_name, (long) sh.real.uid,
1938 (sh.flag.hidefile == S_TRUE) ? _("(hidden)") : file_path('C', 'R'), sh.conf.hash,
1939 (sh.flag.hidefile == S_TRUE) ? _("(hidden)") : file_path('D', 'R'), sh.data.hash);
1940#endif
1941 }
1942 else
1943 {
1944#if (defined(WITH_GPG) || defined(WITH_PGP))
1945 /* log startup */
1946 sh_gpg_log_startup ();
1947#else
1948 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_START_1H,
1949 sh.prg_name, (long) sh.real.uid,
1950 (sh.flag.hidefile == S_TRUE) ? _("(hidden)") : file_path('C', 'R'), sh.conf.hash);
1951#endif
1952 }
1953#endif
1954
1955
1956 if ((skey == NULL) || (skey->mlock_failed == S_TRUE))
1957 sh_error_handle ((-1), FIL__, __LINE__, EPERM, MSG_MLOCK);
1958
1959 /* timer
1960 */
1961 tcurrent = time (NULL);
1962 told = tcurrent;
1963 sh.mailTime.alarm_last = told;
1964
1965
1966 /****************************************************
1967 *
1968 * SERVER
1969 *
1970 ****************************************************/
1971
1972#if defined(SH_WITH_SERVER)
1973 TPT((0, FIL__, __LINE__, _("msg=<Start server.>\n")))
1974
1975#if defined (SH_WITH_CLIENT)
1976 if (sh.flag.isserver == S_TRUE)
1977 {
1978 sh_xfer_start_server();
1979 TPT((0, FIL__, __LINE__, _("msg=<End server.>\n")))
1980 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
1981 }
1982#else
1983 sh_xfer_start_server();
1984 TPT((0, FIL__, __LINE__, _("msg=<End server.>\n")))
1985 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
1986#endif
1987
1988#endif
1989
1990 /****************************************************
1991 *
1992 * CLIENT/STANDALONE
1993 *
1994 ****************************************************/
1995#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1996
1997
1998 /* --- Initialize modules. ---
1999 */
2000 TPT((0, FIL__, __LINE__, _("msg=<Initialize modules.>\n")))
2001 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
2002 {
2003 status = modList[modnum].mod_init(&(modList[modnum]));
2004 if ( status < 0 )
2005 {
2006 if (status == (-1)) {
2007 sh_error_handle (SH_ERR_NOTICE, FIL__, __LINE__, status,
2008 MSG_MOD_FAIL,
2009 _(modList[modnum].name),
2010 status+SH_MOD_OFFSET);
2011 } else {
2012 sh_error_handle ((-1), FIL__, __LINE__, status, MSG_MOD_FAIL,
2013 _(modList[modnum].name),
2014 status+SH_MOD_OFFSET);
2015 }
2016 modList[modnum].initval = SH_MOD_FAILED;
2017 }
2018 else
2019 {
2020 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_MOD_OK,
2021 _(modList[modnum].name));
2022 modList[modnum].initval = status;
2023 }
2024 }
2025
2026 /* -------- TEST SETUP ---------
2027 */
2028 (void) sh_files_setrec();
2029 (void) sh_files_test_setup();
2030 sh_audit_commit ();
2031
2032 /* -------- NICE LEVEL ---------
2033 */
2034 if (0 != sh.flag.nice)
2035 {
2036#ifdef HAVE_SETPRIORITY
2037 /*@-unrecog@*/
2038 (void) setpriority(PRIO_PROCESS, 0, sh.flag.nice);
2039 /*@+unrecog@*/
2040#else
2041 (void) nice(sh.flag.nice);
2042#endif
2043 }
2044
2045 /* -------- CREATE SEMAPHORE ---------
2046 */
2047 sh_sem_open();
2048
2049 /* -------- MAIN LOOP ---------
2050 */
2051 sh.statistics.bytes_speed = 0;
2052 sh.statistics.bytes_hashed = 0;
2053 sh.statistics.files_report = 0;
2054 sh.statistics.files_error = 0;
2055 sh.statistics.files_nodir = 0;
2056
2057 while (1 == 1)
2058 {
2059 ++cct;
2060
2061 BREAKEXIT(sh_error_handle);
2062
2063 TPT((0, FIL__, __LINE__, _("msg=<Start main loop.>, iter=<%ld>\n"), cct))
2064
2065 tcurrent = time (NULL);
2066
2067 do {
2068 check_signals(&flag_check_1, &flag_check_2);
2069 if (sh_global_suspend_flag == 1)
2070 (void) retry_msleep (1, 0);
2071 } while (sh_global_suspend_flag == 1);
2072
2073 /* see whether its time to check files
2074 */
2075 if (sh.flag.checkSum == SH_CHECK_INIT ||
2076 (sh.flag.inotify & SH_INOTIFY_DOSCAN) != 0 ||
2077 (sh.flag.checkSum == SH_CHECK_CHECK &&
2078 (sh.flag.isdaemon == S_FALSE && sh.flag.loop == S_FALSE)))
2079 {
2080 flag_check_1 = 1;
2081 if (FileSchedTwo != NULL)
2082 flag_check_2 = 1;
2083 }
2084 else if (sh.flag.checkSum == SH_CHECK_CHECK ||
2085 (sh.flag.update == S_TRUE &&
2086 (sh.flag.isdaemon == S_TRUE || sh.flag.loop == S_TRUE)))
2087 {
2088 if (FileSchedOne == NULL)
2089 {
2090 /* use interval if we have no schedule
2091 */
2092 if (tcurrent - sh.fileCheck.alarm_last >=
2093 sh.fileCheck.alarm_interval)
2094 flag_check_1 = 1;
2095 }
2096 else
2097 {
2098 flag_check_1 = test_sched(FileSchedOne);
2099 if (FileSchedTwo != NULL)
2100 flag_check_2 = test_sched(FileSchedTwo);
2101 if (flag_check_2 == 1)
2102 flag_check_1 = 1;
2103 }
2104 }
2105
2106 check_done = 0;
2107
2108 if (sh.flag.checkSum != SH_CHECK_NONE &&
2109 (flag_check_1 == 1 || flag_check_2 == 1))
2110 {
2111 sh_sem_trylock();
2112
2113 /* Starting a check now, so make sure to fetch delta DB
2114 * if there is one to download.
2115 */
2116 check_for_delta_db();
2117
2118 SH_INOTIFY_IFUSED( sh.flag.inotify |= SH_INOTIFY_INSCAN; );
2119 /* Refresh list files matching glob patterns.
2120 */
2121 if (sh.flag.checkSum != SH_CHECK_INIT)
2122 sh_files_check_globPatterns();
2123
2124 /*
2125 * check directories and files
2126 * ORDER IS IMPORTANT -- DIRZ FIRST
2127 */
2128 sh.statistics.bytes_hashed = 0;
2129 sh.statistics.time_start = time (NULL);
2130 sh.statistics.dirs_checked = 0;
2131 sh.statistics.files_checked = 0;
2132 sh.statistics.files_report = 0;
2133 sh.statistics.files_error = 0;
2134 sh.statistics.files_nodir = 0;
2135
2136 TPT((0, FIL__, __LINE__, _("msg=<Check directories.>\n")))
2137 BREAKEXIT(sh_dirs_chk);
2138 if (flag_check_1 == 1)
2139 {
2140 (void) sh_dirs_chk (1);
2141#ifndef SH_PROFILE
2142 (void) retry_aud_chdir (FIL__, __LINE__, "/");
2143#endif
2144 }
2145 if (flag_check_2 == 1)
2146 {
2147 (void) sh_dirs_chk (2);
2148#ifndef SH_PROFILE
2149 (void) retry_aud_chdir (FIL__, __LINE__, "/");
2150#endif
2151 }
2152 TPT((0, FIL__, __LINE__, _("msg=<Check files.>\n")))
2153 BREAKEXIT(sh_files_chk);
2154 if (flag_check_1 == 1)
2155 (void) sh_files_chk ();
2156
2157 if (sig_urgent > 0) { sh_sem_unlock(sh.statistics.files_report); sh_global_check_silent = 0; continue; }
2158 /*
2159 * check for files not visited
2160 */
2161 if (flag_check_2 == 1 || FileSchedTwo == NULL)
2162 {
2163 TPT((0, FIL__, __LINE__, _("msg=<Check for missing files.>\n")))
2164 sh_hash_unvisited (ShDFLevel[SH_ERR_T_FILE]);
2165 }
2166
2167 if (sig_urgent > 0) { sh_sem_unlock(sh.statistics.files_report); sh_global_check_silent = 0; continue; }
2168
2169 /* reset
2170 */
2171 TPT((0, FIL__, __LINE__, _("msg=<Reset status.>\n")))
2172 sh_dirs_reset ();
2173
2174 if (sig_urgent > 0) { sh_sem_unlock(sh.statistics.files_report); sh_global_check_silent = 0; continue; }
2175
2176 sh_files_reset ();
2177 check_done = 1;
2178
2179 flag_check_1 = 0;
2180 flag_check_2 = 0;
2181 sh_sem_unlock(sh.statistics.files_report);
2182
2183 SH_INOTIFY_IFUSED( sh.flag.inotify &= ~SH_INOTIFY_INSCAN; );
2184 SH_INOTIFY_IFUSED( sh.flag.inotify &= ~SH_INOTIFY_DOSCAN; );
2185
2186 (void) sh_prelink_run (NULL, NULL, 0, 0);
2187
2188 if (sig_urgent > 0) { sh_global_check_silent = 0; continue; }
2189
2190 runtim = time(NULL) - sh.statistics.time_start;
2191 sh.statistics.time_check = runtim;
2192
2193 if ((sh.statistics.dirs_checked == 0) &&
2194 (sh.statistics.files_checked == 0) &&
2195 (sh_global_check_silent < SH_SILENT_FULL))
2196 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_CHECK_0);
2197
2198 else
2199 {
2200 st_1 = (float) sh.statistics.bytes_hashed;
2201 st_2 = (float) runtim;
2202
2203
2204 if (st_1 > FLT_EPSILON && st_2 > FLT_EPSILON)
2205 st_1 = st_1/st_2;
2206 else if (st_1 > FLT_EPSILON)
2207 st_1 = (float) (st_1 * 1.0);
2208 else
2209 st_1 = 0.0;
2210
2211 sh.statistics.bytes_speed = (unsigned long) st_1;
2212
2213 if (sh_global_check_silent < SH_SILENT_FULL)
2214 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_CHECK_1,
2215 (long) runtim,
2216 0.001 * st_1);
2217
2218 if (sh.flag.checkSum != SH_CHECK_INIT)
2219 sh_efile_report();
2220 }
2221
2222 if (0 == sh_global_check_silent)
2223 sh.fileCheck.alarm_last = time (NULL);
2224
2225 sh_global_check_silent = 0;
2226
2227 if (sig_urgent > 0) continue;
2228
2229 /*
2230 * flush mail queue
2231 */
2232#if defined(SH_WITH_MAIL)
2233 TPT((0, FIL__, __LINE__, _("msg=<Flush mail queue.>\n")))
2234 (void) sh_nmail_flush ();
2235#endif
2236 }
2237
2238 if (sig_urgent > 0) continue;
2239
2240 /* execute modules
2241 */
2242 TPT((0, FIL__, __LINE__, _("msg=<Execute modules.>\n")))
2243 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
2244 {
2245 if (modList[modnum].initval == SH_MOD_ACTIVE &&
2246 0 != modList[modnum].mod_timer(tcurrent))
2247 if (0 != (status = modList[modnum].mod_check()))
2248 sh_error_handle ((-1), FIL__, __LINE__, status, MSG_MOD_EXEC,
2249 _(modList[modnum].name), (long) (status+SH_MOD_OFFSET));
2250 }
2251
2252 /* 27.05.2002 avoid empty database
2253 * 22.10.2002 moved here b/o suid check initialization
2254 */
2255 if (sh.flag.checkSum == SH_CHECK_INIT)
2256 sh_dbIO_data_write (NULL, NULL);
2257
2258 /* write out database
2259 */
2260 if (sh.flag.checkSum == SH_CHECK_CHECK &&
2261 sh.flag.update == S_TRUE &&
2262 check_done == 1)
2263 sh_dbIO_writeout_update ();
2264
2265 /* no-op unless MEM_LOG is defined in sh_mem.c
2266 */
2267#ifdef MEM_DEBUG
2268 sh_mem_dump ();
2269#endif
2270
2271 {
2272 char * stale;
2273
2274 stale = sl_check_stale();
2275 if (stale)
2276 {
2277 sh_error_handle(SH_ERR_ERR, FIL__, __LINE__, 0, MSG_E_SUBGEN,
2278 stale, _("sl_check_stale"));
2279 }
2280
2281 stale = sl_check_badfd();
2282 if (stale)
2283 {
2284 sh_error_handle(SH_ERR_ERR, FIL__, __LINE__, 0, MSG_E_SUBGEN,
2285 stale, _("sl_check_stale"));
2286 }
2287 }
2288
2289 /* no loop if not daemon
2290 */
2291 if (sh.flag.isdaemon != S_TRUE && sh.flag.loop == S_FALSE) break;
2292 if (sig_urgent > 0) continue;
2293
2294 /* see whether its time to send mail
2295 */
2296#if defined(SH_WITH_MAIL)
2297 if (tcurrent - sh.mailTime.alarm_last >= sh.mailTime.alarm_interval)
2298 {
2299 TPT((0, FIL__, __LINE__, _("msg=<Flush mail queue.>\n")))
2300 (void) sh_nmail_flush ();
2301 sh.mailTime.alarm_last = time (NULL);
2302 }
2303#endif
2304 if (sig_urgent > 0) continue;
2305
2306 /* log the timestamp
2307 */
2308 if ((int)(tcurrent - told) >= sh.looptime )
2309 {
2310 TPT((0, FIL__, __LINE__, _("msg=<Log the timestamp.>\n")))
2311 told = tcurrent;
2312#ifdef MEM_DEBUG
2313 sh_mem_check();
2314 sh_unix_count_mlock();
2315#else
2316 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_STAMP);
2317#endif
2318 }
2319
2320 /* seed / re-seed the PRNG if required
2321 */
2322 (void) taus_seed();
2323
2324 if (sig_urgent > 0) continue;
2325
2326 /* reset cache
2327 */
2328 sh_userid_destroy();
2329
2330 /* go to sleep
2331 */
2332 (void) retry_msleep (1, 0);
2333
2334 BREAKEXIT(sh_derr);
2335 (void) sh_derr();
2336 }
2337
2338 /* ------ END -----------
2339 */
2340
2341
2342
2343 /*
2344 * cleanup
2345 */
2346 TPT((0, FIL__, __LINE__, _("msg=<Cleanup.>\n")));
2347 sh_hash_hashdelete();
2348
2349#if defined(SH_WITH_MAIL)
2350 if (sh.mailNum.alarm_last > 0)
2351 (void)sh_nmail_flush ();
2352#endif
2353
2354 /* #if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE) */
2355#endif
2356
2357 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
2358 SL_RETURN(0, _("main"));
2359}
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