source: trunk/src/samhain.c@ 579

Last change on this file since 579 was 579, checked in by katerina, 16 months ago

Fix for ticket #467 (memleak).
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_sig.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 (void) sh_ignore_clean ();
780 /*
781 * Only flush on exit if running as deamon.
782 * Otherwise we couldn't run another instance
783 * while the deamon is running (would leave the
784 * deamon with flushed ruleset).
785 */
786 if (sh.flag.isdaemon == S_TRUE)
787 {
788 sh_audit_delete_all ();
789 }
790#endif
791#if defined(SH_WITH_SERVER)
792 sh_xfer_free_all ();
793#endif
794#if defined(SH_WITH_MAIL)
795 sh_nmail_free();
796#endif
797 delete_cache();
798 sh_userid_destroy ();
799 sh_mem_stat();
800#endif
801
802#ifdef MEM_DEBUG
803 sh_unix_count_mlock();
804#endif
805
806 /* --- Checksum of executable. ---
807 */
808 {
809 volatile int sig_store = sig_termfast;
810
811 sig_termfast = 0;
812 (void) sh_unix_self_check();
813 sig_termfast = sig_store;
814 }
815
816
817 /* --- Exit Message. ---
818 */
819 if (sh.flag.exit == EXIT_FAILURE && !strcmp(sh_sig_msg, _("None")))
820 sl_strlcpy(sh_sig_msg, _("exit_failure"), SH_MINIBUF);
821 if (sh.flag.exit == EXIT_SUCCESS && !strcmp(sh_sig_msg, _("None")))
822 sl_strlcpy(sh_sig_msg, _("exit_success"), SH_MINIBUF);
823 sh_error_handle ((-1), FIL__, __LINE__, sh.flag.exit, MSG_EXIT_NORMAL,
824 sh.prg_name, sh_sig_msg);
825#ifdef SH_USE_XML
826 (void) sh_log_file (NULL, NULL);
827#endif
828
829
830 /* --- Restrict error logging to stderr. ---
831 */
832 close_ipc ();
833 sh_error_only_stderr (S_TRUE);
834
835 /* --- Remove lock, delete critical information. ---
836 */
837 (void) sh_unix_rm_lock_file (sh.srvlog.name);
838 if (sh.flag.isdaemon == S_TRUE)
839 (void) sh_unix_rm_pid_file ();
840 if (skey != NULL)
841 memset (skey, 0, sizeof(sh_key_t));
842
843 /* --- Exit. ---
844 */
845 SL_RET0(_("exit_handler"));
846}
847
848/***********************************************************
849 *
850 */
851#ifndef SIGHUP
852#define SIGHUP 1
853#endif
854#ifndef SIGTERM
855#define SIGTERM 15
856#endif
857#ifndef SIGKILL
858#define SIGKILL 9
859#endif
860
861#if defined(__linux__) || defined(sun) || defined(__sun) || defined(__sun__)
862#include <dirent.h>
863static pid_t * procdirSamhain (void)
864{
865 pid_t * pidlist;
866 struct dirent * d;
867 DIR * dp;
868 long ino;
869 struct stat buf;
870 int i;
871 pid_t pid, mypid = getpid();
872 char * tail;
873 char exef[128];
874
875 if (0 != stat(SH_INSTALL_PATH, &buf))
876 {
877 return NULL;
878 }
879
880 ino = (long) buf.st_ino;
881
882 if (NULL == (dp = opendir(_("/proc"))))
883 {
884 /* cppcheck-suppress resourceLeak */
885 return NULL;
886 }
887
888 SH_MUTEX_LOCK(mutex_readdir);
889
890 pidlist = calloc(1, sizeof(pid_t) * 65535);
891 if (!pidlist)
892 goto unlock_and_out;
893
894 for (i = 0; i < 65535; ++i) pidlist[i] = 0;
895
896 i = 0;
897 while (NULL != (d = readdir(dp)) && i < 65535)
898 {
899 if (0 != strcmp(d->d_name, ".") && 0 != strcmp(d->d_name, ".."))
900 {
901 errno = 0;
902 pid = (pid_t) strtol (d->d_name, &tail, 0);
903 if (*tail != '\0' || errno != 0)
904 continue;
905 if (pid == mypid)
906 continue;
907#if defined(__linux__)
908 sprintf(exef, _("/proc/%d/exe"), (int) pid); /* known to fit */
909#else
910 sprintf(exef, _("/proc/%d/object/a.out"), /* known to fit */
911 (int) pid);
912#endif
913 if (0 == stat(exef, &buf) && ino == (long) buf.st_ino)
914 { pidlist[i] = (pid_t) pid; ++i; }
915 }
916 }
917
918 unlock_and_out:
919 ;
920 SH_MUTEX_UNLOCK(mutex_readdir);
921
922 closedir(dp);
923 return pidlist;
924}
925#else
926static pid_t * procdirSamhain (void)
927{
928 return NULL;
929}
930#endif
931
932static int killprocSamhain (pid_t pid)
933{
934 int i;
935
936 /* fprintf(stderr, "Killing %d\n", pid); */
937 if (pid > 0 && 0 == kill (pid, SIGTERM))
938 {
939 for (i = 0; i < 16; ++i)
940 {
941 (void) retry_msleep(1, 0);
942 if (0 != kill (pid, 0) && errno == ESRCH)
943 return (0);
944 }
945
946 (void) kill (pid, SIGKILL);
947 return (0);
948 }
949 if (pid > 0)
950 {
951 if (errno == ESRCH)
952 return 7;
953 if (errno == EPERM)
954 return 4;
955 return 1;
956 }
957 else
958 return (7);
959}
960
961static pid_t pidofSamhain (int flag)
962{
963 FILE * fp;
964 char line[256];
965 char * tail;
966 char * p;
967 pid_t pid;
968 long inpid;
969 struct stat buf;
970
971 fp = fopen (DEFAULT_ERRLOCK, "r");
972
973 if (!fp)
974 { if (errno != ENOENT) perror(_("fopen")); return 0; }
975 if (NULL == fgets(line, sizeof(line), fp))
976 { perror(_("fgets")); (void) sl_fclose(FIL__, __LINE__, fp); return 0; }
977 (void) sl_fclose(FIL__, __LINE__, fp);
978 p = line;
979 while (*p == ' ' || *p == '\f' || *p == '\n' ||
980 *p == '\r' || *p == '\t' || *p == '\v')
981 ++p;
982 errno = 0;
983 inpid = strtol (p, &tail, 0);
984 if (p == tail || errno != 0)
985 { perror(_("strtol")); return 0; }
986
987 pid = (pid_t) inpid;
988 if (inpid != (long) pid)
989 { perror(_("strtol")); return 0; }
990
991 /* remove stale pid file
992 */
993 if (flag == 1 && pid > 0 && 0 != kill(pid, 0) && errno == ESRCH)
994 {
995 if /*@-unrecog@*/ (0 == lstat (DEFAULT_ERRLOCK, &buf))/*@+unrecog@*/
996 {
997 if /*@-usedef@*/(S_ISREG(buf.st_mode))/*@+usedef@*/
998 {
999 (void) unlink(DEFAULT_ERRLOCK);
1000 }
1001 }
1002 else
1003 {
1004 perror(_("lstat")); return 0;
1005 }
1006 pid = 0;
1007 }
1008 return pid;
1009}
1010
1011/* 1: start 2:stop 3:reload 4:status
1012 */
1013/*@-exitarg@*/
1014static int samhainctl(int ctl, int * argc, char * argv[])
1015{
1016 char * fullpath;
1017 pid_t pid;
1018 int status;
1019 int res;
1020 pid_t respid;
1021 int times;
1022 char * argp[32];
1023 pid_t * pidlist;
1024 int i;
1025#ifdef WCONTINUED
1026 int wflags = WNOHANG|WUNTRACED|WCONTINUED;
1027#else
1028 int wflags = WNOHANG|WUNTRACED;
1029#endif
1030
1031 fullpath = strdup (SH_INSTALL_PATH);
1032 if (fullpath == NULL)
1033 { perror(_("strdup")); exit (1); }
1034
1035 argp[0] = strdup (SH_INSTALL_PATH);
1036 if (argp[0] == NULL)
1037 { perror(_("strdup")); exit (1); }
1038
1039 for (times = 1; times < 32; ++times) argp[times] = NULL;
1040
1041 res = (*argc > 32) ? 32 : *argc;
1042
1043 for (times = 2; times < res; ++times)
1044 {
1045 argp[times-1] = strdup (argv[times]);
1046 if (argp[times-1] == NULL)
1047 { perror(_("strdup")); exit (1); }
1048 }
1049
1050 if (ctl == 1)
1051 {
1052 pid = pidofSamhain(1);
1053
1054 if (pid != 0 && 0 == kill (pid, 0)) /* already started */
1055 exit (0);
1056
1057 pid = fork();
1058 switch (pid) {
1059 case ((pid_t) -1):
1060 perror(_("fork"));
1061 exit (1);
1062 case 0:
1063 if (0 != sl_close_fd (FIL__, __LINE__, 0))
1064 {
1065 _exit(4);
1066 }
1067 (void) execv(fullpath, argp); /* flawfinder: ignore *//* wtf? */
1068 if (errno == EPERM)
1069 _exit(4);
1070 else if (errno == ENOENT)
1071 _exit(5);
1072 _exit (1);
1073 default:
1074 times = 0;
1075 while (times < 300) {
1076 respid = waitpid(pid, &status, wflags);
1077 if ((pid_t)-1 == respid)
1078 {
1079 perror(_("waitpid"));
1080 exit (1);
1081 }
1082 else if (pid == respid)
1083 {
1084#ifndef USE_UNO
1085 if (0 != WIFEXITED(status))
1086 {
1087 res = WEXITSTATUS(status);
1088 exit (res == 0 ? 0 : res );
1089 }
1090 else
1091 exit (1);
1092#else
1093 exit (1);
1094#endif
1095 }
1096 ++times;
1097 (void) retry_msleep(1, 0);
1098 }
1099 exit (0); /* assume that it runs ok */
1100 }
1101 }
1102
1103 pid = pidofSamhain(0);
1104
1105 if (ctl == 2) /* stop */
1106 {
1107 pidlist = procdirSamhain ();
1108 if (pid == 0 && NULL == pidlist) /* pid file not found */
1109 {
1110 free(fullpath);
1111 return (0);
1112 }
1113
1114 status = 0;
1115 if (pid != 0)
1116 status = killprocSamhain(pid);
1117 if (pidlist != NULL)
1118 {
1119 i = 0;
1120 while (i < 65535 && pidlist[i] != 0)
1121 {
1122 if (pidlist[i] != pid)
1123 status = killprocSamhain(pidlist[i]);
1124 ++i;
1125 }
1126 }
1127 free(fullpath);
1128 if (status == 7)
1129 return 0;
1130 else
1131 return status;
1132 }
1133
1134 if (ctl == 3) /* reload */
1135 {
1136 if (pid == 0)
1137 exit (7);
1138 if (0 == kill (pid, SIGHUP))
1139 exit (0);
1140 else
1141 {
1142 if (errno == EPERM)
1143 exit (4);
1144 if (errno == ESRCH)
1145 exit (7);
1146 exit (1);
1147 }
1148 }
1149
1150 if (ctl == 4) /* status */
1151 {
1152 if (pid == 0)
1153 exit (3);
1154 if (0 == kill (pid, 0))
1155 exit (0);
1156 else
1157 {
1158 if (errno == EPERM)
1159 exit (4);
1160 if (errno == ESRCH)
1161 exit (1);
1162 }
1163 }
1164 free(fullpath); /* silence smatch false positive */
1165 exit (1); /* no exit handler installed yet */
1166 /*@notreached@*/
1167 return (0);
1168}
1169/*@+exitarg@*/
1170
1171#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1172#include "sh_schedule.h"
1173static sh_schedule_t * FileSchedOne = NULL;
1174static sh_schedule_t * FileSchedTwo = NULL;
1175
1176/* free a linked list of schedules
1177 */
1178static sh_schedule_t * free_sched (sh_schedule_t * isched)
1179{
1180 sh_schedule_t * current = isched;
1181 sh_schedule_t * next = NULL;
1182
1183 while (current != NULL)
1184 {
1185 next = current->next;
1186 SH_FREE(current);
1187 current = next;
1188 }
1189 return NULL;
1190}
1191
1192/* Add a new schedule to the linked list of schedules
1193 */
1194static sh_schedule_t * sh_set_schedule_int (const char * str,
1195 sh_schedule_t * FileSchedIn,
1196 /*@out@*/ int * status)
1197{
1198 sh_schedule_t * FileSched;
1199
1200 SL_ENTER(_("sh_set_schedule_int"));
1201
1202 if (0 == sl_strncmp(str, _("NULL"), 4))
1203 {
1204 (void) free_sched(FileSchedIn);
1205 FileSchedIn = NULL;
1206 *status = 0;
1207 SL_RETURN(NULL, _("sh_set_schedule_int"));
1208 }
1209
1210 FileSched = SH_ALLOC(sizeof(sh_schedule_t));
1211 *status = create_sched(str, FileSched);
1212 if (*status != 0)
1213 {
1214 SH_FREE(FileSched);
1215 FileSched = NULL;
1216 SL_RETURN(FileSchedIn , _("sh_set_schedule_int"));
1217 }
1218 else {
1219 FileSched->next = FileSchedIn;
1220 }
1221 SL_RETURN(FileSched , _("sh_set_schedule_int"));
1222}
1223
1224/* Add a new schedule to the linked list FileSchedOne
1225 */
1226int sh_set_schedule_one (const char * str)
1227{
1228 int status;
1229 FileSchedOne = sh_set_schedule_int (str, FileSchedOne, &status);
1230 return status;
1231}
1232
1233/* Add a new schedule to the linked list FileSchedTwo
1234 */
1235int sh_set_schedule_two (const char * str)
1236{
1237 int status;
1238 FileSchedTwo = sh_set_schedule_int (str, FileSchedTwo, &status);
1239 return status;
1240}
1241
1242static int sh_flag_silent = S_FALSE;
1243
1244int sh_set_silent_full (const char * str)
1245{
1246 int status = sh_util_flagval(str, &sh_flag_silent);
1247 return status;
1248}
1249
1250
1251void do_reconf()
1252{
1253 int status, modnum;
1254
1255 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_RECONF);
1256
1257 sh_thread_pause_flag = S_TRUE;
1258
1259 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
1260 {
1261 if (0 != (SH_MODFL_NEEDPAUSED & modList[modnum].flags) &&
1262 modList[modnum].initval == SH_MOD_THREAD)
1263 {
1264 int count = 50;
1265 while (count && 0 == (SH_MODFL_ISPAUSED & modList[modnum].flags))
1266 retry_msleep(0, 100), --count;
1267 }
1268 }
1269
1270#if defined(WITH_EXTERNAL)
1271 /* delete list of external tasks
1272 */
1273 (void) sh_ext_cleanup();
1274#endif
1275#if defined(SH_WITH_MAIL)
1276 sh_nmail_free();
1277#endif
1278
1279 /* delete the file list, make all database
1280 * entries visible (allignore = FALSE)
1281 */
1282 (void) sh_files_deldirstack ();
1283 (void) sh_files_delfilestack ();
1284 (void) sh_files_delglobstack ();
1285 (void) sh_ignore_clean ();
1286 (void) hash_full_tree ();
1287 sh_audit_delete_all ();
1288
1289
1290#if defined(SH_WITH_CLIENT)
1291 reset_count_dev_server();
1292#endif
1293#if defined(SH_WITH_CLIENT) || defined(SH_STANDALONE)
1294 sh_restrict_purge ();
1295
1296
1297 FileSchedOne = free_sched(FileSchedOne);
1298 FileSchedTwo = free_sched(FileSchedTwo);
1299
1300 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
1301 {
1302 /* sh_thread_pause_flag is true, and we block in lock
1303 * until check has returned, so we are sure check will
1304 * not run until sh_thread_pause_flag is set to false
1305 */
1306 /* if (modList[modnum].initval >= SH_MOD_ACTIVE) */
1307 (void) modList[modnum].mod_reconf();
1308 }
1309#endif
1310
1311 reset_count_dev_console();
1312 reset_count_dev_time();
1313
1314 (void) sh_unix_maskreset();
1315
1316#ifdef RELOAD_DATABASE
1317 sh_hash_hashdelete();
1318
1319 if (0 != sl_strcmp(file_path('D', 'R'), _("REQ_FROM_SERVER")))
1320 {
1321 char hashbuf[KEYBUF_SIZE];
1322 (void) sl_strlcpy(sh.data.hash,
1323 sh_tiger_hash (file_path('D', 'R'),
1324 TIGER_FILE, TIGER_NOLIM,
1325 hashbuf, sizeof(hashbuf)),
1326 KEY_LEN+1);
1327 }
1328#endif
1329 (void) sl_trust_purge_user();
1330 (void) sh_files_hle_reg (NULL);
1331 (void) sh_prelink_run (NULL, NULL, 0, 0);
1332
1333 /* --------------------------
1334 * --- READ CONFIGURATION ---
1335 * --------------------------
1336 */
1337 (void) sh_readconf_read ();
1338 sig_config_read_again = 0;
1339 (void) sh_files_setrec();
1340 (void) sh_files_test_setup();
1341 sh_audit_commit ();
1342
1343 if (0 != sh.flag.nice)
1344 {
1345#ifdef HAVE_SETPRIORITY
1346 setpriority(PRIO_PROCESS, 0, sh.flag.nice);
1347#else
1348 nice(sh.flag.nice);
1349#endif
1350 }
1351
1352 if (sh.flag.checkSum == SH_CHECK_INIT)
1353 {
1354 sh.flag.isdaemon = S_FALSE;
1355 sh.flag.loop = S_FALSE;
1356 }
1357
1358
1359 /* --- Initialize modules. ---
1360 */
1361 TPT((0, FIL__, __LINE__, _("msg=<Initialize modules.>\n")));
1362 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
1363 {
1364 status = modList[modnum].mod_init(&(modList[modnum]));
1365
1366 if (status < 0)
1367 {
1368 if (status == (-1)) {
1369 sh_error_handle (SH_ERR_NOTICE, FIL__, __LINE__,
1370 status, MSG_MOD_FAIL,
1371 _(modList[modnum].name),
1372 status+SH_MOD_OFFSET);
1373 } else {
1374 sh_error_handle ((-1), FIL__, __LINE__,
1375 status, MSG_MOD_FAIL,
1376 _(modList[modnum].name),
1377 status+SH_MOD_OFFSET);
1378 }
1379 modList[modnum].initval = SH_MOD_FAILED;
1380 }
1381 else
1382 {
1383 sh_error_handle ((-1), FIL__, __LINE__, status, MSG_MOD_OK,
1384 _(modList[modnum].name));
1385 modList[modnum].initval = status;
1386 }
1387 }
1388
1389 /* module is properly set up now
1390 */
1391 sh_thread_pause_flag = S_FALSE;
1392
1393 return;
1394}
1395
1396static void check_signals (volatile int *flag_check_1,
1397 volatile int * flag_check_2)
1398{
1399 if (sig_raised > 0)
1400 {
1401
1402 TPT((0, FIL__, __LINE__, _("msg=<Process a signal.>\n")))
1403
1404 if (sig_termfast == 1) /* SIGTERM */
1405 {
1406 TPT((0, FIL__, __LINE__, _("msg=<Terminate.>\n")));
1407 --sig_raised; --sig_urgent;
1408 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
1409 }
1410
1411 if (sig_force_check == 1) /* SIGTTOU / SIGTSTP */
1412 {
1413 TPT((0, FIL__, __LINE__, _("msg=<Check run triggered.>\n")));
1414 *flag_check_1 = 1; *flag_check_2 = 1;
1415 sig_force_check = 0; --sig_raised;
1416 if (sig_force_silent)
1417 {
1418 sig_force_silent = 0;
1419 sh_global_check_silent = (sh_flag_silent == S_FALSE) ? SH_SILENT_STD : SH_SILENT_FULL;
1420 }
1421 sh_sem_trylock();
1422 }
1423
1424 if (sig_config_read_again == 1 && /* SIGHUP */
1425 sh_global_suspend_flag == 0)
1426 {
1427 TPT((0, FIL__, __LINE__, _("msg=<Re-read configuration.>\n")));
1428 do_reconf();
1429 --sig_raised;
1430 }
1431
1432 if (sig_fresh_trail == 1) /* SIGIOT */
1433 {
1434 if (sh_global_suspend_flag == 0)
1435 {
1436 SH_MUTEX_LOCK(mutex_thread_nolog);
1437
1438 /* Logfile access
1439 */
1440#ifdef SH_USE_XML
1441 (void) sh_log_file (NULL, NULL);
1442#endif
1443 TPT((0, FIL__, __LINE__, _("msg=<Logfile stop/restart.>\n")));
1444 sh_error_only_stderr (S_TRUE);
1445 (void) sh_unix_rm_lock_file(sh.srvlog.name);
1446 (void) retry_msleep(3, 0);
1447 sh.flag.log_start = S_TRUE;
1448 sh_error_only_stderr (S_FALSE);
1449 sh_thread_pause_flag = S_FALSE;
1450 sig_fresh_trail = 0;
1451 --sig_raised;
1452 SH_MUTEX_UNLOCK(mutex_thread_nolog);
1453 }
1454 }
1455
1456 if (sig_terminate == 1) /* SIGQUIT */
1457 {
1458 TPT((0, FIL__, __LINE__, _("msg=<Terminate.>\n")));
1459 strncpy (sh_sig_msg, _("Quit"), 20);
1460 --sig_raised;
1461 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
1462 }
1463
1464 if (sig_debug_switch == 1) /* SIGUSR1 */
1465 {
1466 TPT((0, FIL__, __LINE__, _("msg=<Debug switch.>\n")));
1467 sh_error_dbg_switch();
1468 sig_debug_switch = 0;
1469 --sig_raised;
1470 }
1471
1472 if (sig_suspend_switch > 0) /* SIGUSR2 */
1473 {
1474 TPT((0, FIL__, __LINE__, _("msg=<Suspend switch.>\n")));
1475 if (sh_global_suspend_flag != 1) {
1476 SH_MUTEX_LOCK_UNSAFE(mutex_thread_nolog);
1477 sh_global_suspend_flag = 1;
1478 sh_error_handle((-1), FIL__, __LINE__, 0, MSG_SUSPEND,
1479 sh.prg_name);
1480 } else {
1481 sh_global_suspend_flag = 0;
1482 SH_MUTEX_UNLOCK_UNSAFE(mutex_thread_nolog);
1483 }
1484 --sig_suspend_switch;
1485 --sig_raised; --sig_urgent;
1486 }
1487
1488 if (sh_load_delta_flag > 0 &&
1489 sh_global_suspend_flag == 0) /* DELTA Command */
1490 {
1491 if (0 == sh_dbIO_load_delta())
1492 {
1493 --sh_load_delta_flag; --sig_raised;
1494 }
1495 }
1496
1497 sig_raised = (sig_raised < 0) ? 0 : sig_raised;
1498 sig_urgent = (sig_urgent < 0) ? 0 : sig_urgent;
1499 TPT((0, FIL__, __LINE__, _("msg=<End signal processing.>\n")));
1500 }
1501 return;
1502}
1503
1504void check_for_delta_db()
1505{
1506 /* Need to contact the server.
1507 */
1508 if (sh_global_check_silent < SH_SILENT_FULL)
1509 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_CHECK_2);
1510
1511 if (sig_raised > 0 && sh_load_delta_flag > 0) /* DELTA Command */
1512 {
1513 /* There was a DELTA Command
1514 */
1515 if (0 == sh_dbIO_load_delta())
1516 {
1517 --sh_load_delta_flag; --sig_raised;
1518 }
1519 }
1520 return;
1521}
1522
1523#endif
1524
1525/*******************************************************
1526 *
1527 * Main program
1528 *
1529 *******************************************************/
1530#if !defined(SH_CUTEST)
1531int main(int argc, char * argv[])
1532#else
1533int undef_main(int argc, char * argv[])
1534#endif
1535{
1536#if defined(INET_SYSLOG)
1537 extern int sh_xfer_create_syslog_socket (int flag);
1538#endif
1539#if defined(SH_WITH_SERVER)
1540 extern int sh_create_tcp_socket(void);
1541#endif
1542
1543#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1544 int modnum;
1545 time_t runtim;
1546 float st_1, st_2;
1547 int status;
1548 volatile long cct = 0; /* main loop iterations */
1549
1550 volatile int flag_check_1 = 0;
1551 volatile int flag_check_2 = 0;
1552
1553 int check_done = 0;
1554#endif
1555
1556 volatile time_t told;
1557 volatile time_t tcurrent;
1558 size_t tzlen;
1559 char * tzptr;
1560 int res;
1561
1562#if defined (SH_STEALTH_NOCL)
1563 char command_line[256];
1564 int my_argc = 0;
1565 char * my_argv[32];
1566#endif
1567
1568#if !defined(USE_SYSTEM_MALLOC)
1569 typedef void assert_handler_tp(const char * error, const char *file, int line);
1570 extern assert_handler_tp *dnmalloc_set_handler(assert_handler_tp *new);
1571 (void) dnmalloc_set_handler(safe_fatal);
1572#endif
1573
1574 SH_G_INIT; /* Must precede any use of _() */
1575
1576 SL_ENTER(_("main"));
1577
1578 /* --- Close all but first three file descriptors. ---
1579 */
1580 sh_unix_closeall(3, -1, S_FALSE); /* at program start */
1581
1582
1583 if (argc >= 2 && 0 != getuid() &&
1584 (0 == strcmp(argv[1], _("start")) ||
1585 0 == strcmp(argv[1], _("stop")) ||
1586 0 == strcmp(argv[1], _("reload")) ||
1587 0 == strcmp(argv[1], _("force-reload")) ||
1588 0 == strcmp(argv[1], _("status")) ||
1589 0 == strcmp(argv[1], _("restart"))))
1590 {
1591 return 4;
1592 }
1593
1594 if (argc >= 2 && 0 == getuid())
1595 {
1596 /* return codes:
1597 * 0 Success
1598 * 1 Can not send signal / start program
1599 * 2 Pid file does not exist
1600 */
1601 if (0 == strcmp(argv[1], _("start")))
1602 {
1603 (void) samhainctl (1, &argc, argv); /* does not return */
1604 }
1605 else if (0 == strcmp(argv[1], _("stop")))
1606 return (samhainctl (2, &argc, argv));
1607 else if (0 == strcmp(argv[1], _("reload")))
1608 (void) samhainctl (3, &argc, argv); /* does not return */
1609 else if (0 == strcmp(argv[1], _("force-reload")))
1610 (void) samhainctl (3, &argc, argv); /* does not return */
1611 else if (0 == strcmp(argv[1], _("status")))
1612 (void) samhainctl (4, &argc, argv); /* does not return */
1613 else if (0 == strcmp(argv[1], _("restart")))
1614 {
1615 res = samhainctl (2, &argc, argv);
1616 if (res == 0 || res == 7)
1617 {
1618 (void) samhainctl (1, &argc, argv); /* does not return */
1619 }
1620 else
1621 return (res);
1622 }
1623 }
1624
1625 /* if fd 0 is closed, presume that we want to be daemon and
1626 * run in check mode
1627 */
1628 if ((-1) == retry_fcntl(FIL__, __LINE__, 0, F_GETFL, 0) &&
1629 errno == EBADF)
1630 {
1631 sh.flag.opts = S_TRUE;
1632 (void) sh_unix_setdeamon(NULL);
1633#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1634 sh.flag.checkSum = SH_CHECK_CHECK;
1635 /* (void) sh_util_setchecksum(_("check")); */
1636#endif
1637 is_samhainctl_init = S_TRUE;
1638 sh.flag.opts = S_FALSE;
1639 }
1640
1641
1642 /* --- Install the exit handler. ---
1643 */
1644 (void) atexit(exit_handler);
1645
1646 /* --- Zero the mailer key, and fill it. ---
1647 */
1648 memset (ErrFlag, 0, 2*sizeof(UINT32));
1649
1650#ifdef MKA_01
1651 ErrFlag[0] |= (1 << 0);
1652#endif
1653#ifdef MKA_02
1654 ErrFlag[0] |= (1 << 1);
1655#endif
1656#ifdef MKA_03
1657 ErrFlag[0] |= (1 << 2);
1658#endif
1659#ifdef MKA_04
1660 ErrFlag[0] |= (1 << 3);
1661#endif
1662#ifdef MKA_05
1663 ErrFlag[0] |= (1 << 4);
1664#endif
1665#ifdef MKA_06
1666 ErrFlag[0] |= (1 << 5);
1667#endif
1668#ifdef MKA_07
1669 ErrFlag[0] |= (1 << 6);
1670#endif
1671#ifdef MKA_08
1672 ErrFlag[0] |= (1 << 7);
1673#endif
1674
1675#if defined(SCREW_IT_UP)
1676 BREAKEXIT(sh_sigtrap_prepare);
1677 (void) sh_sigtrap_prepare();
1678#endif
1679
1680 /* Save the timezone.
1681 */
1682 if (NULL != (tzptr = getenv("TZ"))) /* flawfinder: ignore */
1683 {
1684 tzlen = strlen(tzptr);
1685 if (tzlen < 1024)
1686 {
1687 sh.timezone = calloc(1, tzlen + 1);
1688 if (sh.timezone != NULL)
1689 (void) sl_strlcpy (sh.timezone, tzptr, tzlen + 1);
1690 }
1691 else
1692 sh.timezone = NULL;
1693 }
1694 else
1695 sh.timezone = NULL;
1696
1697
1698 /* -------- INIT --------
1699 */
1700 sh_unix_ign_sigpipe();
1701
1702 /* Restrict error logging to stderr.
1703 */
1704 sh_error_only_stderr (S_TRUE);
1705
1706 /* Check that first three descriptors are open.
1707 */
1708 if ( retry_fcntl(FIL__, __LINE__, 0, F_GETFL, 0) == (-1))
1709 (void) aud_open(FIL__, __LINE__, SL_NOPRIV, _("/dev/null"), O_RDWR, 0);
1710 if ( retry_fcntl(FIL__, __LINE__, 1, F_GETFL, 0) == (-1))
1711 (void) aud_open(FIL__, __LINE__, SL_NOPRIV, _("/dev/null"), O_RDWR, 1);
1712 if ( retry_fcntl(FIL__, __LINE__, 2, F_GETFL, 0) == (-1))
1713 (void) aud_open(FIL__, __LINE__, SL_NOPRIV, _("/dev/null"), O_RDWR, 2);
1714
1715 /* --- Set default values. ---
1716 */
1717 BREAKEXIT(sh_init);
1718 sh_init (); /* we are still privileged here, so we can mlock skey */
1719#if (defined (SH_WITH_SERVER) && !defined (SH_WITH_CLIENT))
1720 sh.flag.isserver = S_TRUE;
1721#endif
1722
1723 /* --- First check for an attached debugger (after setting
1724 sh.sigtrap_max_duration which has to be done before). ---
1725 */
1726 BREAKEXIT(sh_derr);
1727 (void) sh_derr();
1728
1729 /* --- Get local hostname. ---
1730 */
1731 BREAKEXIT(sh_unix_localhost);
1732 sh_unix_localhost();
1733
1734 /* --- Read the command line. ---
1735 */
1736 sh.flag.opts = S_TRUE;
1737
1738#if !defined(SH_STEALTH_NOCL)
1739 sh_argc_store = argc;
1740 sh_argv_store = argv;
1741 (void) sh_getopt_get (argc, argv);
1742#else
1743 if (argc > 1 && argv[1] != NULL &&
1744 strlen(argv[1]) > 0 && strlen(NOCL_CODE) > 0)
1745 {
1746 if ( 0 == strcmp(argv[1], NOCL_CODE) )
1747 {
1748#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_STRTOK_R)
1749 char * saveptr;
1750#endif
1751 my_argv[0] = argv[0]; ++my_argc;
1752 command_line[0] = '\0';
1753 if (NULL != fgets (command_line, sizeof(command_line), stdin))
1754 command_line[sizeof(command_line)-1] = '\0';
1755
1756 do {
1757#if defined(HAVE_PTHREAD) && defined (_POSIX_THREAD_SAFE_FUNCTIONS) && defined(HAVE_STRTOK_R)
1758 my_argv[my_argc] =
1759 strtok_r( (my_argc == 1) ? command_line : NULL, " \n", &saveptr);
1760#else
1761 my_argv[my_argc] =
1762 strtok( (my_argc == 1) ? command_line : NULL, " \n");
1763#endif
1764 if (my_argv[my_argc] != NULL) {
1765 ++my_argc;
1766 } else {
1767 break;
1768 }
1769 } while (my_argc < 32);
1770
1771 sh_argc_store = my_argc;
1772 sh_argv_store = my_argv;
1773
1774 (void) sh_getopt_get (my_argc, my_argv);
1775 }
1776 else
1777 {
1778 /* discard command line */
1779 /* _exit(EXIT_FAILURE) */ ;
1780 }
1781 }
1782#endif
1783 sh.flag.opts = S_FALSE;
1784
1785
1786 /* --- Get user info. ---
1787 */
1788 TPT((0, FIL__, __LINE__, _("msg=<Get user name.>\n")))
1789 if (0 != sh_unix_getUser ())
1790 {
1791 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_EXIT_ABORT1,
1792 sh.prg_name);
1793 aud_exit(FIL__, __LINE__, EXIT_FAILURE);
1794 }
1795
1796
1797 /* *****************************
1798 *
1799 * Read the configuration file.
1800 *
1801 * *****************************/
1802
1803 TPT((0, FIL__, __LINE__, _("msg=<Read the configuration file.>\n")))
1804 BREAKEXIT(sh_readconf_read);
1805 (void) sh_readconf_read ();
1806
1807 sh_calls_enable_sub();
1808
1809#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1810 if (sh.flag.checkSum == SH_CHECK_NONE)
1811 {
1812 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_E_SUBGEN,
1813 _("No action specified: init, update, or check"),
1814 _("main"));
1815 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_EXIT_ABORT1,
1816 sh.prg_name);
1817 aud_exit (FIL__, __LINE__, EXIT_FAILURE);
1818 }
1819#endif
1820
1821 /* do not append to database if run SUID
1822 */
1823 if ((sh.flag.checkSum == SH_CHECK_INIT) && (0 != sl_is_suid()))
1824 {
1825 (void) dlog(1, FIL__, __LINE__,
1826 _("Cannot initialize database when running with SUID credentials.\nYou need to run this with the user ID %d.\nYour current user ID is %d."),
1827 (int) geteuid(), (int) sh.real.uid);
1828 sh_error_handle ((-1), FIL__, __LINE__, EACCES, MSG_ACCESS,
1829 (long) sh.real.uid, sh.data.path);
1830 aud_exit(FIL__, __LINE__, EXIT_FAILURE);
1831 }
1832
1833 /* avoid daemon mode for initialization
1834 */
1835 if (sh.flag.checkSum == SH_CHECK_INIT)
1836 {
1837 sh.flag.isdaemon = S_FALSE;
1838 sh.flag.loop = S_FALSE;
1839 }
1840
1841 /* --- load database; checksum of database
1842 */
1843#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1844 if (0 == sh.delayload)
1845 sh_hash_init_and_checksum();
1846#endif
1847
1848 /* --- initialize signal handling etc.; fork daemon
1849 */
1850 if (sh_unix_init(sh.flag.isdaemon) == -1)
1851 {
1852 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_EXIT_ABORT1,
1853 sh.prg_name);
1854 aud_exit(FIL__, __LINE__, EXIT_FAILURE);
1855 }
1856
1857#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1858 if (sh.delayload)
1859 {
1860 sleep(sh.delayload);
1861 sh_hash_init_and_checksum();
1862 }
1863#endif
1864
1865 /* --- drop privileges eventually ---
1866 */
1867#if defined(SH_WITH_SERVER)
1868 sh_create_tcp_socket ();
1869#if defined(INET_SYSLOG)
1870 sh_xfer_create_syslog_socket (S_TRUE);
1871#endif
1872 SL_REQUIRE(sl_policy_get_real(DEFAULT_IDENT) == SL_ENONE,
1873 _("sl_policy_get_real(DEFAULT_IDENT) == SL_ENONE"));
1874#else
1875 SL_REQUIRE(sl_policy_get_user(DEFAULT_IDENT) == SL_ENONE,
1876 _("sl_policy_get_user(DEFAULT_IDENT) == SL_ENONE"));
1877#endif
1878
1879 /* --- Get user info (again). ---
1880 */
1881 TPT((0, FIL__, __LINE__, _("msg=<Get user name.>\n")))
1882 if (0 != sh_unix_getUser ())
1883 {
1884 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_EXIT_ABORT1,
1885 sh.prg_name);
1886 aud_exit(FIL__, __LINE__, EXIT_FAILURE);
1887 }
1888
1889 /* --- now check whether we really wanted it; if not, close ---
1890 */
1891#if defined(INET_SYSLOG) && defined(SH_WITH_SERVER)
1892 sh_xfer_create_syslog_socket (S_FALSE);
1893#endif
1894
1895
1896 /* --- Enable full error logging ---
1897 */
1898 sh_error_only_stderr (S_FALSE);
1899
1900 sh.flag.started = S_TRUE;
1901
1902 /****************************************************
1903 *
1904 * SERVER
1905 *
1906 ****************************************************/
1907
1908#if defined(SH_WITH_SERVER) && !defined(SH_WITH_CLIENT)
1909
1910#if defined(WITH_GPG)
1911 /* log startup */
1912 sh_sig_log_startup ();
1913#else
1914 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_START_1H,
1915 sh.prg_name, (long) sh.real.uid,
1916 (sh.flag.hidefile == S_TRUE) ?
1917 _("(hidden)") : file_path('C','R'),
1918 sh.conf.hash);
1919#endif
1920
1921#else
1922
1923 /****************************************************
1924 *
1925 * CLIENT/STANDALONE
1926 *
1927 ****************************************************/
1928
1929 BREAKEXIT(sh_error_handle);
1930
1931 if (sh.flag.checkSum == SH_CHECK_CHECK)
1932 {
1933#if defined(WITH_GPG)
1934 /* log startup */
1935 sh_sig_log_startup ();
1936#else
1937 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_START_2H,
1938 sh.prg_name, (long) sh.real.uid,
1939 (sh.flag.hidefile == S_TRUE) ? _("(hidden)") : file_path('C', 'R'), sh.conf.hash,
1940 (sh.flag.hidefile == S_TRUE) ? _("(hidden)") : file_path('D', 'R'), sh.data.hash);
1941#endif
1942 }
1943 else
1944 {
1945#if defined(WITH_GPG)
1946 /* log startup */
1947 sh_sig_log_startup ();
1948#else
1949 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_START_1H,
1950 sh.prg_name, (long) sh.real.uid,
1951 (sh.flag.hidefile == S_TRUE) ? _("(hidden)") : file_path('C', 'R'), sh.conf.hash);
1952#endif
1953 }
1954#endif
1955
1956
1957 if ((skey == NULL) || (skey->mlock_failed == S_TRUE))
1958 sh_error_handle ((-1), FIL__, __LINE__, EPERM, MSG_MLOCK);
1959
1960 /* timer
1961 */
1962 tcurrent = time (NULL);
1963 told = tcurrent;
1964 sh.mailTime.alarm_last = told;
1965
1966
1967 /****************************************************
1968 *
1969 * SERVER
1970 *
1971 ****************************************************/
1972
1973#if defined(SH_WITH_SERVER)
1974 TPT((0, FIL__, __LINE__, _("msg=<Start server.>\n")))
1975
1976#if defined (SH_WITH_CLIENT)
1977 if (sh.flag.isserver == S_TRUE)
1978 {
1979 sh_xfer_start_server();
1980 TPT((0, FIL__, __LINE__, _("msg=<End server.>\n")))
1981 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
1982 }
1983#else
1984 sh_xfer_start_server();
1985 TPT((0, FIL__, __LINE__, _("msg=<End server.>\n")))
1986 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
1987#endif
1988
1989#endif
1990
1991 /****************************************************
1992 *
1993 * CLIENT/STANDALONE
1994 *
1995 ****************************************************/
1996#if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE)
1997
1998
1999 /* --- Initialize modules. ---
2000 */
2001 TPT((0, FIL__, __LINE__, _("msg=<Initialize modules.>\n")))
2002 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
2003 {
2004 status = modList[modnum].mod_init(&(modList[modnum]));
2005 if ( status < 0 )
2006 {
2007 if (status == (-1)) {
2008 sh_error_handle (SH_ERR_NOTICE, FIL__, __LINE__, status,
2009 MSG_MOD_FAIL,
2010 _(modList[modnum].name),
2011 status+SH_MOD_OFFSET);
2012 } else {
2013 sh_error_handle ((-1), FIL__, __LINE__, status, MSG_MOD_FAIL,
2014 _(modList[modnum].name),
2015 status+SH_MOD_OFFSET);
2016 }
2017 modList[modnum].initval = SH_MOD_FAILED;
2018 }
2019 else
2020 {
2021 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_MOD_OK,
2022 _(modList[modnum].name));
2023 modList[modnum].initval = status;
2024 }
2025 }
2026
2027 /* -------- TEST SETUP ---------
2028 */
2029 (void) sh_files_setrec();
2030 (void) sh_files_test_setup();
2031 sh_audit_commit ();
2032
2033 /* -------- NICE LEVEL ---------
2034 */
2035 if (0 != sh.flag.nice)
2036 {
2037#ifdef HAVE_SETPRIORITY
2038 /*@-unrecog@*/
2039 (void) setpriority(PRIO_PROCESS, 0, sh.flag.nice);
2040 /*@+unrecog@*/
2041#else
2042 (void) nice(sh.flag.nice);
2043#endif
2044 }
2045
2046 /* -------- CREATE SEMAPHORE ---------
2047 */
2048 sh_sem_open();
2049
2050 /* -------- MAIN LOOP ---------
2051 */
2052 sh.statistics.bytes_speed = 0;
2053 sh.statistics.bytes_hashed = 0;
2054 sh.statistics.files_report = 0;
2055 sh.statistics.files_error = 0;
2056 sh.statistics.files_nodir = 0;
2057
2058 while (1 == 1)
2059 {
2060 ++cct;
2061
2062 BREAKEXIT(sh_error_handle);
2063
2064 TPT((0, FIL__, __LINE__, _("msg=<Start main loop.>, iter=<%ld>\n"), cct))
2065
2066 tcurrent = time (NULL);
2067
2068 do {
2069 check_signals(&flag_check_1, &flag_check_2);
2070 if (sh_global_suspend_flag == 1)
2071 (void) retry_msleep (1, 0);
2072 } while (sh_global_suspend_flag == 1);
2073
2074 /* see whether its time to check files
2075 */
2076 if (sh.flag.checkSum == SH_CHECK_INIT ||
2077 (sh.flag.inotify & SH_INOTIFY_DOSCAN) != 0 ||
2078 (sh.flag.checkSum == SH_CHECK_CHECK &&
2079 (sh.flag.isdaemon == S_FALSE && sh.flag.loop == S_FALSE)))
2080 {
2081 flag_check_1 = 1;
2082 if (FileSchedTwo != NULL)
2083 flag_check_2 = 1;
2084 }
2085 else if (sh.flag.checkSum == SH_CHECK_CHECK ||
2086 (sh.flag.update == S_TRUE &&
2087 (sh.flag.isdaemon == S_TRUE || sh.flag.loop == S_TRUE)))
2088 {
2089 if (FileSchedOne == NULL)
2090 {
2091 /* use interval if we have no schedule
2092 */
2093 if (tcurrent - sh.fileCheck.alarm_last >=
2094 sh.fileCheck.alarm_interval)
2095 flag_check_1 = 1;
2096 }
2097 else
2098 {
2099 flag_check_1 = test_sched(FileSchedOne);
2100 if (FileSchedTwo != NULL)
2101 flag_check_2 = test_sched(FileSchedTwo);
2102 if (flag_check_2 == 1)
2103 flag_check_1 = 1;
2104 }
2105 }
2106
2107 check_done = 0;
2108
2109 if (sh.flag.checkSum != SH_CHECK_NONE &&
2110 (flag_check_1 == 1 || flag_check_2 == 1))
2111 {
2112 sh_sem_trylock();
2113
2114 /* Starting a check now, so make sure to fetch delta DB
2115 * if there is one to download.
2116 */
2117 check_for_delta_db();
2118
2119 SH_INOTIFY_IFUSED( sh.flag.inotify |= SH_INOTIFY_INSCAN; );
2120 /* Refresh list files matching glob patterns.
2121 */
2122 if (sh.flag.checkSum != SH_CHECK_INIT)
2123 sh_files_check_globPatterns();
2124
2125 /*
2126 * check directories and files
2127 * ORDER IS IMPORTANT -- DIRZ FIRST
2128 */
2129 sh.statistics.bytes_hashed = 0;
2130 sh.statistics.time_start = time (NULL);
2131 sh.statistics.dirs_checked = 0;
2132 sh.statistics.files_checked = 0;
2133 sh.statistics.files_report = 0;
2134 sh.statistics.files_error = 0;
2135 sh.statistics.files_nodir = 0;
2136
2137 TPT((0, FIL__, __LINE__, _("msg=<Check directories.>\n")))
2138 BREAKEXIT(sh_dirs_chk);
2139 if (flag_check_1 == 1)
2140 {
2141 (void) sh_dirs_chk (1);
2142#ifndef SH_PROFILE
2143 (void) retry_aud_chdir (FIL__, __LINE__, "/");
2144#endif
2145 }
2146 if (flag_check_2 == 1)
2147 {
2148 (void) sh_dirs_chk (2);
2149#ifndef SH_PROFILE
2150 (void) retry_aud_chdir (FIL__, __LINE__, "/");
2151#endif
2152 }
2153 TPT((0, FIL__, __LINE__, _("msg=<Check files.>\n")))
2154 BREAKEXIT(sh_files_chk);
2155 if (flag_check_1 == 1)
2156 (void) sh_files_chk ();
2157
2158 if (sig_urgent > 0) { sh_sem_unlock(sh.statistics.files_report); sh_global_check_silent = 0; continue; }
2159 /*
2160 * check for files not visited
2161 */
2162 if (flag_check_2 == 1 || FileSchedTwo == NULL)
2163 {
2164 TPT((0, FIL__, __LINE__, _("msg=<Check for missing files.>\n")))
2165 sh_hash_unvisited (ShDFLevel[SH_ERR_T_FILE]);
2166 }
2167
2168 if (sig_urgent > 0) { sh_sem_unlock(sh.statistics.files_report); sh_global_check_silent = 0; continue; }
2169
2170 /* reset
2171 */
2172 TPT((0, FIL__, __LINE__, _("msg=<Reset status.>\n")))
2173 sh_dirs_reset ();
2174
2175 if (sig_urgent > 0) { sh_sem_unlock(sh.statistics.files_report); sh_global_check_silent = 0; continue; }
2176
2177 sh_files_reset ();
2178 check_done = 1;
2179
2180 flag_check_1 = 0;
2181 flag_check_2 = 0;
2182 sh_sem_unlock(sh.statistics.files_report);
2183
2184 SH_INOTIFY_IFUSED( sh.flag.inotify &= ~SH_INOTIFY_INSCAN; );
2185 SH_INOTIFY_IFUSED( sh.flag.inotify &= ~SH_INOTIFY_DOSCAN; );
2186
2187 (void) sh_prelink_run (NULL, NULL, 0, 0);
2188
2189 if (sig_urgent > 0) { sh_global_check_silent = 0; continue; }
2190
2191 runtim = time(NULL) - sh.statistics.time_start;
2192 sh.statistics.time_check = runtim;
2193
2194 if ((sh.statistics.dirs_checked == 0) &&
2195 (sh.statistics.files_checked == 0) &&
2196 (sh_global_check_silent < SH_SILENT_FULL))
2197 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_CHECK_0);
2198
2199 else
2200 {
2201 st_1 = (float) sh.statistics.bytes_hashed;
2202 st_2 = (float) runtim;
2203
2204
2205 if (st_1 > FLT_EPSILON && st_2 > FLT_EPSILON)
2206 st_1 = st_1/st_2;
2207 else if (st_1 > FLT_EPSILON)
2208 st_1 = (float) (st_1 * 1.0);
2209 else
2210 st_1 = 0.0;
2211
2212 sh.statistics.bytes_speed = (unsigned long) st_1;
2213
2214 if (sh_global_check_silent < SH_SILENT_FULL)
2215 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_CHECK_1,
2216 (long) runtim,
2217 0.001 * st_1);
2218
2219 if (sh.flag.checkSum != SH_CHECK_INIT)
2220 sh_efile_report();
2221 }
2222
2223 if (0 == sh_global_check_silent)
2224 sh.fileCheck.alarm_last = time (NULL);
2225
2226 sh_global_check_silent = 0;
2227
2228 if (sig_urgent > 0) continue;
2229
2230 /*
2231 * flush mail queue
2232 */
2233#if defined(SH_WITH_MAIL)
2234 TPT((0, FIL__, __LINE__, _("msg=<Flush mail queue.>\n")))
2235 (void) sh_nmail_flush ();
2236#endif
2237 }
2238
2239 if (sig_urgent > 0) continue;
2240
2241 /* execute modules
2242 */
2243 TPT((0, FIL__, __LINE__, _("msg=<Execute modules.>\n")))
2244 for (modnum = 0; modList[modnum].name != NULL; ++modnum)
2245 {
2246 if (modList[modnum].initval == SH_MOD_ACTIVE &&
2247 0 != modList[modnum].mod_timer(tcurrent))
2248 if (0 != (status = modList[modnum].mod_check()))
2249 sh_error_handle ((-1), FIL__, __LINE__, status, MSG_MOD_EXEC,
2250 _(modList[modnum].name), (long) (status+SH_MOD_OFFSET));
2251 }
2252
2253 /* 27.05.2002 avoid empty database
2254 * 22.10.2002 moved here b/o suid check initialization
2255 */
2256 if (sh.flag.checkSum == SH_CHECK_INIT)
2257 sh_dbIO_data_write (NULL, NULL);
2258
2259 /* write out database
2260 */
2261 if (sh.flag.checkSum == SH_CHECK_CHECK &&
2262 sh.flag.update == S_TRUE &&
2263 check_done == 1)
2264 sh_dbIO_writeout_update ();
2265
2266 /* no-op unless MEM_LOG is defined in sh_mem.c
2267 */
2268#ifdef MEM_DEBUG
2269 sh_mem_dump ();
2270#endif
2271
2272 {
2273 char * stale;
2274
2275 stale = sl_check_stale();
2276 if (stale)
2277 {
2278 sh_error_handle(SH_ERR_ERR, FIL__, __LINE__, 0, MSG_E_SUBGEN,
2279 stale, _("sl_check_stale"));
2280 }
2281
2282 stale = sl_check_badfd();
2283 if (stale)
2284 {
2285 sh_error_handle(SH_ERR_ERR, FIL__, __LINE__, 0, MSG_E_SUBGEN,
2286 stale, _("sl_check_stale"));
2287 }
2288 }
2289
2290 /* no loop if not daemon
2291 */
2292 if (sh.flag.isdaemon != S_TRUE && sh.flag.loop == S_FALSE) break;
2293 if (sig_urgent > 0) continue;
2294
2295 /* see whether its time to send mail
2296 */
2297#if defined(SH_WITH_MAIL)
2298 if (tcurrent - sh.mailTime.alarm_last >= sh.mailTime.alarm_interval)
2299 {
2300 TPT((0, FIL__, __LINE__, _("msg=<Flush mail queue.>\n")))
2301 (void) sh_nmail_flush ();
2302 sh.mailTime.alarm_last = time (NULL);
2303 }
2304#endif
2305 if (sig_urgent > 0) continue;
2306
2307 /* log the timestamp
2308 */
2309 if ((int)(tcurrent - told) >= sh.looptime )
2310 {
2311 TPT((0, FIL__, __LINE__, _("msg=<Log the timestamp.>\n")))
2312 told = tcurrent;
2313#ifdef MEM_DEBUG
2314 sh_mem_check();
2315 sh_unix_count_mlock();
2316#else
2317 sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_STAMP);
2318#endif
2319 }
2320
2321 /* seed / re-seed the PRNG if required
2322 */
2323 (void) taus_seed();
2324
2325 if (sig_urgent > 0) continue;
2326
2327 /* reset cache
2328 */
2329 sh_userid_destroy();
2330
2331 /* go to sleep
2332 */
2333 (void) retry_msleep (1, 0);
2334
2335 BREAKEXIT(sh_derr);
2336 (void) sh_derr();
2337 }
2338
2339 /* ------ END -----------
2340 */
2341
2342
2343
2344 /*
2345 * cleanup
2346 */
2347 TPT((0, FIL__, __LINE__, _("msg=<Cleanup.>\n")));
2348 sh_hash_hashdelete();
2349
2350#if defined(SH_WITH_MAIL)
2351 if (sh.mailNum.alarm_last > 0)
2352 (void)sh_nmail_flush ();
2353#endif
2354
2355 /* #if defined (SH_WITH_CLIENT) || defined (SH_STANDALONE) */
2356#endif
2357
2358 aud_exit (FIL__, __LINE__, EXIT_SUCCESS);
2359 SL_RETURN(0, _("main"));
2360}
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