1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866
|
/*
* -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
*
* http://www.ntop.org
*
* Copyright (C) 1998-2012 Luca Deri <deri@ntop.org>
*
* -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "ntop.h"
#include "globals-core.h"
#include "globals-report.h"
NtopGlobals myGlobals;
#if !defined(HAVE_GETOPT_H) && !defined(DARWIN)
char *optarg;
int optind;
int opterr;
int optopt;
#endif
#ifdef WIN32
char *version, *osName, *ntop_author, *buildDate, *configureDate,
*configure_parameters,
*host_system_type,
*target_system_type,
*compiler_cppflags,
*compiler_cflags,
*include_path,
*system_libs,
*install_path,
*force_runtime;
#endif
static u_short _mtuSize[MAX_DLT_ARRAY];
static u_short _headerSize[MAX_DLT_ARRAY];
#ifdef WIN32
extern char _wdir[];
#endif
static char *_dataFileDirs[] = {
".",
#ifdef WIN32
_wdir,
#endif
CFG_DATAFILE_DIR, DEFAULT_NTOP_HTML_INSTALL, NULL };
static char *_pluginDirs[] = { "./plugins", CFG_PLUGIN_DIR, DEFAULT_NTOP_PLUGINS_INSTALL, NULL };
static char *_configFileDirs[] = { ".", CFG_CONFIGFILE_DIR, DEFAULT_NTOP_CFG_CONFIGFILE_DIR,
#ifdef WIN32
_wdir,
#else
"/etc",
#endif
NULL };
struct in6_addr _in6addr_linklocal_allnodes;
/* ************************************************************ */
void initGdbm(char *prefDirectory, /* Directory with persistent files */
char *spoolDirectory, /* Directory with temporary files (that can be deleted when ntop is not running) */
int initPrefsOnly) {
struct stat statbuf;
traceEvent(CONST_TRACE_INFO, "Initializing gdbm databases");
if(initPrefsOnly) {
initSingleGdbm(&myGlobals.prefsFile, "prefsCache.db", prefDirectory, FALSE, NULL);
initSingleGdbm(&myGlobals.pwFile, "ntop_pw.db", prefDirectory, FALSE, NULL);
return;
}
initSingleGdbm(&myGlobals.macPrefixFile, "macPrefix.db", spoolDirectory, FALSE, &statbuf);
initSingleGdbm(&myGlobals.fingerprintFile, "fingerprint.db", spoolDirectory, FALSE, &statbuf);
initSingleGdbm(&myGlobals.serialFile, "hostSerials.db", spoolDirectory, TRUE, &statbuf);
initSingleGdbm(&myGlobals.resolverCacheFile,"resolverCache.db",spoolDirectory, TRUE, &statbuf);
initSingleGdbm(&myGlobals.topTalkersFile, "topTalkers.db", spoolDirectory, FALSE, &statbuf);
createVendorTable(&statbuf);
checkCommunities(); /* Check if communities are defined */
}
/* ******************************* */
static void allocateOtherHosts(void) {
if(myGlobals.otherHostEntry != NULL) {
traceEvent(CONST_TRACE_WARNING, "Attempting to call twice allocateOtherHosts()");
return;
}
myGlobals.otherHostEntry = (HostTraffic*)malloc(sizeof(HostTraffic));
memset(myGlobals.otherHostEntry, 0, sizeof(HostTraffic));
myGlobals.otherHostEntry->hostIp4Address.s_addr = 0x00112233;
strncpy(myGlobals.otherHostEntry->hostNumIpAddress, " ",
sizeof(myGlobals.otherHostEntry->hostNumIpAddress));
strncpy(myGlobals.otherHostEntry->hostResolvedName, "Remaining Host(s)",
sizeof(myGlobals.otherHostEntry->hostResolvedName));
myGlobals.otherHostEntry->hostResolvedNameType = FLAG_HOST_SYM_ADDR_TYPE_FAKE;
strcpy(myGlobals.otherHostEntry->ethAddressString, "00:00:00:00:00:00");
myGlobals.otherHostEntry->portsUsage = NULL;
myGlobals.otherHostEntry->l7.traffic = (ProtoTraffic*)calloc(myGlobals.l7.numSupportedProtocols+1, sizeof(ProtoTraffic));
myGlobals.otherHostEntry->serialHostIndex = ++myGlobals.hostSerialCounter; /* Start from 1 (0 = UNKNOWN_SERIAL_INDEX) */
myGlobals.otherHostEntry->magic = CONST_MAGIC_NUMBER;
}
/* ************************************ */
void extend8021Qmtu(void) {
#ifndef MAKE_WITH_JUMBO_FRAMES
/* 1500 + 14 bytes header + 4 VLAN */
_mtuSize[DLT_EN10MB] = 1500+sizeof(struct ether_header)+4;
#endif
}
/* ************************************ */
/*
* Initialize all global run-time parameters to default (reasonable!!!) values
*/
void initNtopGlobals(int argc, char * argv[], int argc_started, char *argv_started[]) {
int i, bufLen;
char *startedAs, *defaultPath, *c;
/*
* Notice the program name
*/
if((c = strrchr(argv[0], CONST_PATH_SEP)) == NULL)
myGlobals.program_name = argv[0];
else
myGlobals.program_name = &c[1];
/*
* save command line parameters
*/
myGlobals.ntop_argc = argc;
myGlobals.ntop_argv = argv;
initUserPrefs(&myGlobals.runningPref);
/* Overrides for above */
if (strcmp(myGlobals.program_name, "ntopd") == 0) {
myGlobals.runningPref.daemonMode = 1;
}
myGlobals.checkVersionStatus = FLAG_CHECKVERSION_NOTCHECKED;
myGlobals.checkVersionStatusAgain = 1;
/* Search paths */
myGlobals.dataFileDirs = _dataFileDirs;
myGlobals.pluginDirs = _pluginDirs;
myGlobals.configFileDirs = _configFileDirs;
#ifdef WIN32
defaultPath = _wdir;
#else
defaultPath = CFG_DBFILE_DIR;
#endif
myGlobals.dbPath = strdup(defaultPath); /* a NULL pointer will break the logic */
/* NB: we can't init rrdPath here, because initGdbm hasn't been run */
/* list of available NICs */
myGlobals.allDevs = NULL;
/* the table of enabled NICs */
myGlobals.numDevices = 0;
myGlobals.device = calloc(MAX_NUM_DEVICES, sizeof(NtopInterface));
if(myGlobals.device == NULL) {
traceEvent(CONST_TRACE_WARNING, "Not enough memory :-(");
exit(-1);
}
/* Databases */
myGlobals.pwFile = NULL;
/* the table of broadcast entries */
myGlobals.broadcastEntry = NULL;
/* the table of other hosts entries */
myGlobals.otherHostEntry = NULL;
/* administrative */
myGlobals.shortDomainName = NULL;
myGlobals.numThreads = 0; /* # of running threads */
#ifdef HAVE_OPENSSL
myGlobals.sslInitialized = 0;
myGlobals.runningPref.sslPort = 0; /* Disabled by default: enabled via -W */
#endif
myGlobals.dnsSniffCount = 0;
myGlobals.dnsSniffRequestCount = 0;
myGlobals.dnsSniffFailedCount = 0;
myGlobals.dnsSniffARPACount = 0;
myGlobals.dnsSniffStoredInCache = 0;
/* Misc */
myGlobals.separator = " ";
myGlobals.thisZone = gmt2local(0); /* seconds offset from gmt to local time */
myGlobals.numPurgedHosts = 0;
myGlobals.numTerminatedSessions = 0;
/* Time */
myGlobals.actTime = time(NULL);
myGlobals.initialSniffTime = 0;
myGlobals.lastRefreshTime = 0;
myGlobals.lastPktTime.tv_sec = 0;
myGlobals.lastPktTime.tv_usec = 0;
/* Monitored Protocols */
myGlobals.numActServices = 0;
myGlobals.udpSvc = NULL;
myGlobals.tcpSvc = NULL;
myGlobals.ipTrafficProtosNames = NULL;
myGlobals.numIpProtosToMonitor = 0;
myGlobals.ipPortMapper.numElements = 0;
myGlobals.ipPortMapper.theMapper = NULL;
myGlobals.ipPortMapper.numSlots = 0;
myGlobals.numHandledSIGPIPEerrors = 0;
for(i=0; i<=1; i++) {
myGlobals.numHandledRequests[i] = 0;
myGlobals.numHandledBadrequests[i] = 0;
myGlobals.numSuccessfulRequests[i] = 0;
myGlobals.numUnsuccessfulInvalidrequests[i] = 0;
myGlobals.numUnsuccessfulInvalidmethod[i] = 0;
myGlobals.numUnsuccessfulInvalidversion[i] = 0;
myGlobals.numUnsuccessfulTimeout[i] = 0;
myGlobals.numUnsuccessfulNotfound[i] = 0;
myGlobals.numUnsuccessfulDenied[i] = 0;
myGlobals.numUnsuccessfulForbidden[i] = 0;
}
myGlobals.numSSIRequests = 0;
myGlobals.numBadSSIRequests = 0;
myGlobals.numHandledSSIRequests = 0;
createMutex(&myGlobals.geolocalizationMutex); /* GeoIP mutex */
/* create the logView stuff Mutex first... must be before the 1st traceEvent() call */
createMutex(&myGlobals.logViewMutex); /* synchronize logView buffer */
#ifdef FORPRENPTL
#warning Making version for Pre NPTL Thread Library...
createMutex(&myGlobals.preNPTLlogMutex); /* synchronize logView buffer */
#endif
myGlobals.logViewNext = 0;
myGlobals.logView = (char**)calloc(sizeof(char*),
CONST_LOG_VIEW_BUFFER_SIZE);
/* traceEvent(CONST_TRACE_INFO, "Initializing semaphores, mutexes and threads"); */
/* ============================================================
* Create semaphores and mutexes associated with packet capture
* ============================================================
*/
#ifdef HAVE_PTHREAD_ATFORK
i = pthread_atfork(NULL, NULL, &reinitMutexes);
/* traceEvent(CONST_TRACE_INFO, "NOTE: atfork() handler registered for mutexes, rc %d", i); */
#endif
createMutex(&myGlobals.gdbmMutex); /* data to synchronize thread access to db files */
createMutex(&myGlobals.portsMutex); /* Avoid race conditions while handling ports */
for(i=0; i<NUM_SESSION_MUTEXES; i++)
createMutex(&myGlobals.sessionsMutex[i]); /* data to synchronize sessions access */
createMutex(&myGlobals.purgePortsMutex); /* data to synchronize port purge access */
createMutex(&myGlobals.purgeMutex); /* synchronize purging */
createMutex(&myGlobals.securityItemsMutex);
createMutex(&myGlobals.hostsHashLockMutex);
createMutex(&myGlobals.serialLockMutex); /* Serial host locking */
for(i=0; i<CONST_HASH_INITIAL_SIZE; i++) {
createMutex(&myGlobals.hostsHashMutex[i]);
myGlobals.hostsHashMutexNumLocks[i] = 0;
}
myGlobals.receivedPackets = 0;
myGlobals.receivedPacketsProcessed = 0;
myGlobals.receivedPacketsQueued = 0;
myGlobals.receivedPacketsLostQ = 0;
/* NB: Log View is allocated in main.c so it's available for the very 1st traceEvent() */
for (i = 0; i < CONST_NUM_TRANSACTION_ENTRIES; i ++)
memset(&myGlobals.transTimeHash[i], 0, sizeof(TransactionTime));
myGlobals.dummyEthAddress[0] = '\0';
/*
* Setup the mtu and header size tables.
*
* We set only the ones we specifically know... anything else will
* get mtu=CONST_UNKNOWN_MTU, header=0
*
* If mtuSize is wrong, the only problem will be 1) erroneous-/mis-classification
* of packets as "too long", 2) the suspicious packet file, if one, may have
* extra or missing entries, and 3) an erroneous line in the report.
*
* If headerSize is wrong, there are no known problems.
*
* Remember that for most protocols, mtu isn't fixed - it's set by the routers
* and can be tuned by the sysadmin, isp, et al for "best results".
*
* These do need to be periodically resynced with tcpdump.org and with user experience.
*
* History:
* 15Sep2002 - BStrauss
*
*/
{ int ii;
for (ii=0; ii<MAX_DLT_ARRAY; ii++) {
_mtuSize[ii] = CONST_UNKNOWN_MTU;
_headerSize[ii] = 0;
}
}
_mtuSize[DLT_NULL] = 8232 /* no link-layer encapsulation */;
_headerSize[DLT_NULL] = CONST_NULL_HDRLEN;
#ifdef MAKE_WITH_JUMBO_FRAMES
_mtuSize[DLT_EN10MB] = 9000 /* Ethernet (1000Mb+ Jumbo Frames) */;
#else
/* 1500 + 14 bytes header Courtesy of Andreas Pfaller <a.pfaller@pop.gun.de> */
_mtuSize[DLT_EN10MB] = 1500+sizeof(struct ether_header) /* Ethernet (10Mb) */;
#endif
_headerSize[DLT_EN10MB] = sizeof(struct ether_header);
_mtuSize[DLT_PRONET] = 17914 /* Proteon ProNET Token Ring */;
_headerSize[DLT_PRONET] = sizeof(struct tokenRing_header);
_mtuSize[DLT_IEEE802] = 4096+sizeof(struct tokenRing_header) /* IEEE 802 Networks */;
_headerSize[DLT_IEEE802] = 1492; /* NOTE: This has to be wrong... */
/* _mtuSize[DLT_PPP] = ? Point-to-point Protocol */
_headerSize[DLT_PPP] = CONST_PPP_HDRLEN;
/* Courtesy of Richard Parvass <Richard.Parvass@ReckittBenckiser.com> */
_mtuSize[DLT_FDDI] = 4470 /* FDDI */;
_headerSize[DLT_FDDI] = sizeof(struct fddi_header);
_mtuSize[DLT_ATM_RFC1483] = 9180 /* LLC/SNAP encapsulated atm */;
_headerSize[DLT_ATM_RFC1483] = 0;
/* _mtuSize[DLT_RAW] = ? raw IP */
_headerSize[DLT_RAW] = 0;
/* Others defined in bpf.h at tcpdump.org as of the resync - it would be NICE
to have values for these... */
/* _mtuSize[DLT_EN3MB] = ? Experimental Ethernet (3Mb) */
/* _mtuSize[DLT_AX25] = ? Amateur Radio AX.25 */
/* _mtuSize[DLT_CHAOS] = ? Chaos */
/* _mtuSize[DLT_ARCNET] = ? ARCNET */
/* _mtuSize[DLT_SLIP] = ? Serial Line IP */
/* _mtuSize[DLT_SLIP_BSDOS] = ? BSD/OS Serial Line IP */
/* _mtuSize[DLT_PPP_BSDOS] = ? BSD/OS Point-to-point Protocol */
/* _mtuSize[DLT_ATM_CLIP] = ? Linux Classical-IP over ATM */
/* _mtuSize[DLT_PPP_SERIAL] = ? PPP over serial with HDLC encapsulation */
/* _mtuSize[DLT_PPP_ETHER] = ? PPP over Ethernet */
/* _mtuSize[DLT_C_HDLC] = ? Cisco HDLC */
/* _mtuSize[DLT_IEEE802_11] = ? IEEE 802.11 wireless */
/* _mtuSize[DLT_FRELAY] = ? */
/* _mtuSize[DLT_LOOP] = ? */
/* _mtuSize[DLT_LINUX_SLL] = ? */
/* _mtuSize[DLT_LTALK] = ? */
/* _mtuSize[DLT_ECONET] = ? */
/* _mtuSize[DLT_IPFILTER] = ? */
/* _mtuSize[DLT_PFLOG] = ? */
/* _mtuSize[DLT_CISCO_IOS] = ? */
/* _mtuSize[DLT_PRISM_HEADER] = ? */
/* _mtuSize[DLT_AIRONET_HEADER] = ? */
/* _mtuSize[DLT_HHDLC] = ? */
/* _mtuSize[DLT_IP_OVER_FC] = ? */
/* _mtuSize[DLT_SUNATM] = ? Solaris+SunATM */
myGlobals.mtuSize = _mtuSize;
myGlobals.headerSize = _headerSize;
/* ********************************** */
myGlobals.numPurgedHosts = myGlobals.numTerminatedSessions = 0;
/* Dummy value just to be safe: it will be set later on */
myGlobals.l7.numSupportedProtocols = 2 * IPOQUE_MAX_SUPPORTED_PROTOCOLS;
myGlobals.broadcastEntry = (HostTraffic*)malloc(sizeof(HostTraffic));
memset(myGlobals.broadcastEntry, 0, sizeof(HostTraffic));
myGlobals.broadcastEntry->l7.traffic = (ProtoTraffic*)calloc(myGlobals.l7.numSupportedProtocols+1,
sizeof(ProtoTraffic));
resetHostsVariables(myGlobals.broadcastEntry);
/* Set address to FF:FF:FF:FF:FF:FF */
for(i=0; i<LEN_ETHERNET_ADDRESS; i++)
myGlobals.broadcastEntry->ethAddress[i] = 0xFF;
myGlobals.broadcastEntry->hostIp4Address.s_addr = 0xFFFFFFFF;
strncpy(myGlobals.broadcastEntry->hostNumIpAddress, "broadcast",
sizeof(myGlobals.broadcastEntry->hostNumIpAddress));
strncpy(myGlobals.broadcastEntry->hostResolvedName, myGlobals.broadcastEntry->hostNumIpAddress,
sizeof(myGlobals.broadcastEntry->hostNumIpAddress));
myGlobals.broadcastEntry->hostResolvedNameType = FLAG_HOST_SYM_ADDR_TYPE_FAKE;
strcpy(myGlobals.broadcastEntry->ethAddressString, "FF:FF:FF:FF:FF:FF");
setHostFlag(FLAG_SUBNET_LOCALHOST, myGlobals.broadcastEntry);
setHostFlag(FLAG_BROADCAST_HOST, myGlobals.broadcastEntry);
setHostFlag(FLAG_SUBNET_PSEUDO_LOCALHOST, myGlobals.broadcastEntry);
memset(&myGlobals.broadcastEntry->hostSerial, 0, sizeof(HostSerial));
myGlobals.broadcastEntry->serialHostIndex = ++myGlobals.hostSerialCounter; /* Start from 1 (0 = UNKNOWN_SERIAL_INDEX) */
myGlobals.broadcastEntry->magic = CONST_MAGIC_NUMBER;
allocateOtherHosts();
/* ********************************** */
bufLen = 0;
for (i=0; i<argc_started; i++) {
bufLen += (int)(2 + strlen(argv_started[i]));
}
startedAs = (char*)malloc(bufLen);
memset(startedAs, 0, (size_t) bufLen);
for (i=0; i<argc_started; i++) {
if (argv_started[i] != NULL) {
int displ = (int)strlen(startedAs);
snprintf(&startedAs[displ], bufLen-displ, "%s ", argv_started[i]);
}
}
myGlobals.startedAs = startedAs;
/*
Efficiency is the ability to fill-up ATM cells so that they
can be efficiently used by applications
*/
myGlobals.cellLength = 47; /* FIX - this is valid only for ATM */
}
/* ********************************* */
static void loadGeoIP(void) {
int i;
struct stat statbuf;
/* Initialize GeoIP databases */
for(i=0; myGlobals.configFileDirs[i] != NULL; i++) {
char path[256];
safe_snprintf(__FILE__, __LINE__, path, sizeof(path),
"%s%c%s",
myGlobals.configFileDirs[i],
CONST_PATH_SEP, GEO_IP_FILE);
revertSlashIfWIN32(path, 0);
if(stat(path, &statbuf) == 0) {
if((myGlobals.geo_ip_db = GeoIP_open(path, GEOIP_CHECK_CACHE)) != NULL) {
traceEvent(CONST_TRACE_INFO, "GeoIP: loaded config file %s", path);
break;
}
}
}
if(myGlobals.geo_ip_db == NULL)
traceEvent(CONST_TRACE_ERROR, "GeoIP: unable to load file %s", GEO_IP_FILE);
/* *************************** */
for(i=0; myGlobals.configFileDirs[i] != NULL; i++) {
char path[256];
safe_snprintf(__FILE__, __LINE__, path, sizeof(path),
"%s%c%s",
myGlobals.configFileDirs[i],
CONST_PATH_SEP, GEO_IP_ASN_FILE);
revertSlashIfWIN32(path, 0);
if(stat(path, &statbuf) == 0) {
if((myGlobals.geo_ip_asn_db = GeoIP_open(path, GEOIP_CHECK_CACHE)) != NULL) {
traceEvent(CONST_TRACE_INFO, "GeoIP: loaded ASN config file %s", path);
break;
}
}
}
if(myGlobals.geo_ip_asn_db == NULL)
traceEvent(CONST_TRACE_ERROR, "GeoIP: unable to load ASN file %s", GEO_IP_ASN_FILE);
}
/* ********************************* */
static void debug_printf(u_int32_t protocol, void *id_struct,
ipq_log_level_t log_level, const char *format, ...) { ; }
static void *malloc_wrapper(unsigned long size) { return malloc(size); }
/* ********************************* */
void initL7DeviceDiscovery(int deviceId) {
IPOQUE_PROTOCOL_BITMASK all;
u32 detection_tick_resolution = 1000;
if(myGlobals.runningPref.disablenDPI) return;
myGlobals.device[deviceId].l7.l7handler = ipoque_init_detection_module(detection_tick_resolution, malloc_wrapper, debug_printf);
if(myGlobals.device[deviceId].l7.l7handler == NULL) {
traceEvent(CONST_TRACE_ERROR, "Unable to initialize L7 engine: disabling L7 discovery for deviceId %u", deviceId);
return;
}
// enable all protocols
IPOQUE_BITMASK_SET_ALL(all);
ipoque_set_protocol_detection_bitmask2(myGlobals.device[deviceId].l7.l7handler, &all);
/* ************************** */
createMutex(&myGlobals.device[deviceId].l7.l7Mutex);
}
/* ********************************* */
static void initL7Discovery(void) {
myGlobals.l7.proto_size = ipoque_detection_get_sizeof_ipoque_id_struct();
myGlobals.l7.flow_struct_size = ipoque_detection_get_sizeof_ipoque_flow_struct();
}
/* ********************************* */
void initNtop(char *devices) {
char value[32];
revertSlashIfWIN32(myGlobals.dbPath, 0);
revertSlashIfWIN32(myGlobals.spoolPath, 0);
initIPServices();
handleProtocols();
myGlobals.l7.numSupportedProtocols = IPOQUE_MAX_SUPPORTED_PROTOCOLS;
if(myGlobals.numIpProtosToMonitor == 0)
addDefaultProtocols();
/*
* Initialize memory and data.
*/
initDevices(devices);
init_events();
if(myGlobals.runningPref.enableSessionHandling)
initPassiveSessions();
initL7Discovery();
/* ********************************** */
initGdbm(myGlobals.dbPath, myGlobals.spoolPath, 0);
/* We just initialized gdbm: let's now dump serials */
dumpHostSerial(&myGlobals.broadcastEntry->hostSerial, myGlobals.broadcastEntry->serialHostIndex);
dumpHostSerial(&myGlobals.otherHostEntry->hostSerial, myGlobals.otherHostEntry->serialHostIndex);
if(myGlobals.runningPref.daemonMode) {
/*
Before bacoming a daemon we need o make sure that
ntop has been installed properly and that all the
html files are on the right place
*/
int idx, found = 0;
for(idx=0; (!found) && (myGlobals.dataFileDirs[idx] != NULL); idx++) {
char tmpStr[256];
struct stat statbuf;
if(strcmp(myGlobals.dataFileDirs[idx], ".") /* ignore local paths */ ) {
safe_snprintf(__FILE__, __LINE__, tmpStr, sizeof(tmpStr),
"%s/html/%s",
myGlobals.dataFileDirs[idx],
"ntop.gif" /* This file must always exist */);
if(stat(tmpStr, &statbuf) == 0) {
found = 1;
break;
}
}
}
if(!found) {
traceEvent(CONST_TRACE_WARNING, "ntop will not become a daemon as it has not been");
traceEvent(CONST_TRACE_WARNING, "installed properly (did you do 'make install')");
} else
daemonizeUnderUnix();
}
/* Handle local addresses (if any) */
handleLocalAddresses(myGlobals.runningPref.localAddresses);
/* Handle known subnetworks (if any) */
handleKnownAddresses(myGlobals.runningPref.knownSubnets);
if((myGlobals.pcap_file_list != NULL)
&& (myGlobals.runningPref.localAddresses == NULL)) {
char *any_net = "0.0.0.0/0";
traceEvent(CONST_TRACE_WARNING,
"-m | local-subnets must be specified when the -f option is used"
"Assuming %s", any_net);
myGlobals.runningPref.localAddresses = strdup(any_net);
}
if(myGlobals.runningPref.currentFilterExpression != NULL)
parseTrafficFilter();
else
myGlobals.runningPref.currentFilterExpression = strdup(""); /* so that it isn't NULL! */
/* Handle flows (if any) */
handleFlowsSpecs();
createPortHash();
initCounters();
initApps();
initThreads();
#ifndef MAKE_MICRO_NTOP
traceEvent(CONST_TRACE_NOISY, "Starting Plugins");
startPlugins();
traceEvent(CONST_TRACE_NOISY, "Plugins started... continuing with initialization");
#endif
#if defined(MEMORY_DEBUG) && defined(MAKE_WITH_SAFER_ROUTINES)
resetLeaks();
#endif
addNewIpProtocolToHandle("IGMP", 2, 0 /* no proto */);
addNewIpProtocolToHandle("OSPF", 89, 0 /* no proto */);
addNewIpProtocolToHandle("IPsec", 50, 51);
init_maps();
loadGeoIP();
/* Note that by default ntop will merge network interfaces */
if(myGlobals.runningPref.mergeInterfaces == 0)
traceEvent(CONST_TRACE_ALWAYSDISPLAY, "NOTE: Interface merge disabled by default");
else
traceEvent(CONST_TRACE_ALWAYSDISPLAY, "NOTE: Interface merge enabled by default");
if(fetchPrefsValue("globals.displayPolicy", value, sizeof(value)) == -1) {
myGlobals.hostsDisplayPolicy = showAllHosts /* 0 */;
storePrefsValue("globals.displayPolicy", "0");
} else {
myGlobals.hostsDisplayPolicy = atoi(value);
/* Out of range check */
if((myGlobals.hostsDisplayPolicy < showAllHosts)
|| (myGlobals.hostsDisplayPolicy > showOnlyRemoteHosts))
myGlobals.hostsDisplayPolicy = showAllHosts;
}
if(fetchPrefsValue("globals.localityPolicy", value, sizeof(value)) == -1) {
myGlobals.localityDisplayPolicy = showSentReceived /* 0 */;
storePrefsValue("globals.localityPolicy", "0");
} else {
myGlobals.localityDisplayPolicy = atoi(value);
/* Out of range check */
if((myGlobals.localityDisplayPolicy < showSentReceived)
|| (myGlobals.localityDisplayPolicy > showOnlyReceived))
myGlobals.localityDisplayPolicy = showSentReceived;
}
if(myGlobals.runningPref.skipVersionCheck != TRUE) {
pthread_t myThreadId;
createThread(&myThreadId, checkVersion, NULL);
}
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* This routine enforces the state change rules
*
*
* Valid state transitions:
* 0->1 When ntop first starts up, after memset(myGlobals)
* 1->2 After the basic system protective environment is up...
* 2->3 When ntop gives up root
* 3->4 When ntop finishes initialization
*Or 2->4 When ntop finishes initialization on systems w/o root, e.g. Win32
* 4->5, 6, 7 Stopcap to keep webserver up after a problem or Shutdown on user request
* 5->6, 7 Shutdown requested
* 6->7 Shutdown running
* 7->8 Shutdown complete
* 8->1 (restart) FUTURE...
*
*/
short _setRunState(char *file, int line, short newRunState) {
static short stateTransitionTable[FLAG_NTOPSTATE_TERM+1][FLAG_NTOPSTATE_TERM+1];
static char *stateTransitionTableNames[FLAG_NTOPSTATE_TERM+1];
static short stateTransitionTableLoaded=0;
if(stateTransitionTableLoaded == 0) {
/* One time load */
int i;
for(i=0; i<FLAG_NTOPSTATE_TERM; i++)
stateTransitionTable[i][i] = 1;
stateTransitionTable[FLAG_NTOPSTATE_NOTINIT][FLAG_NTOPSTATE_PREINIT] = 1;
stateTransitionTable[FLAG_NTOPSTATE_PREINIT][FLAG_NTOPSTATE_INIT] = 1;
stateTransitionTable[FLAG_NTOPSTATE_INIT][FLAG_NTOPSTATE_INITNONROOT] = 1;
stateTransitionTable[FLAG_NTOPSTATE_INIT][FLAG_NTOPSTATE_SHUTDOWN] = 1; /* abort */
stateTransitionTable[FLAG_NTOPSTATE_INITNONROOT][FLAG_NTOPSTATE_RUN] = 1;
stateTransitionTable[FLAG_NTOPSTATE_INIT][FLAG_NTOPSTATE_RUN] = 1;
stateTransitionTable[FLAG_NTOPSTATE_RUN][FLAG_NTOPSTATE_STOPCAP] = 1;
stateTransitionTable[FLAG_NTOPSTATE_RUN][FLAG_NTOPSTATE_SHUTDOWNREQ] = 1;
stateTransitionTable[FLAG_NTOPSTATE_RUN][FLAG_NTOPSTATE_SHUTDOWN] = 1;
stateTransitionTable[FLAG_NTOPSTATE_STOPCAP][FLAG_NTOPSTATE_SHUTDOWNREQ] = 1;
stateTransitionTable[FLAG_NTOPSTATE_STOPCAP][FLAG_NTOPSTATE_SHUTDOWN] = 1;
for(i=FLAG_NTOPSTATE_PREINIT; i<FLAG_NTOPSTATE_SHUTDOWNREQ; i++)
stateTransitionTable[i][FLAG_NTOPSTATE_SHUTDOWNREQ] = 1;
stateTransitionTable[FLAG_NTOPSTATE_SHUTDOWNREQ][FLAG_NTOPSTATE_SHUTDOWN] = 1;
stateTransitionTable[FLAG_NTOPSTATE_SHUTDOWN][FLAG_NTOPSTATE_TERM] = 1;
stateTransitionTableNames[FLAG_NTOPSTATE_NOTINIT] = "NOTINIT";
stateTransitionTableNames[FLAG_NTOPSTATE_PREINIT] = "PREINIT";
stateTransitionTableNames[FLAG_NTOPSTATE_INIT] = "INIT";
stateTransitionTableNames[FLAG_NTOPSTATE_INITNONROOT] = "INITNONROOT";
stateTransitionTableNames[FLAG_NTOPSTATE_RUN] = "RUN";
stateTransitionTableNames[FLAG_NTOPSTATE_STOPCAP] = "STOPCAP";
stateTransitionTableNames[FLAG_NTOPSTATE_SHUTDOWNREQ] = "SHUTDOWNREQ";
stateTransitionTableNames[FLAG_NTOPSTATE_SHUTDOWN] = "SHUTDOWN";
stateTransitionTableNames[FLAG_NTOPSTATE_TERM] = "TERM";
stateTransitionTableLoaded = 1;
}
if(stateTransitionTable[myGlobals.ntopRunState][newRunState] == 0) {
traceEvent(CONST_FATALERROR_TRACE_LEVEL, file, line,
"Invalid runState transition %d to %d",
myGlobals.ntopRunState,
newRunState);
exit(99);
}
/* These are largely blueprints for the future */
/* Take appropriate finishing action(s) for old state... */
switch(newRunState) {
case FLAG_NTOPSTATE_NOTINIT:
break;
case FLAG_NTOPSTATE_PREINIT:
break;
case FLAG_NTOPSTATE_INIT:
break;
case FLAG_NTOPSTATE_INITNONROOT:
break;
case FLAG_NTOPSTATE_RUN:
break;
case FLAG_NTOPSTATE_STOPCAP:
break;
case FLAG_NTOPSTATE_SHUTDOWNREQ:
break;
case FLAG_NTOPSTATE_SHUTDOWN:
break;
case FLAG_NTOPSTATE_TERM:
break;
}
/* Take appropriate action(s) for new state... */
switch(newRunState) {
case FLAG_NTOPSTATE_NOTINIT:
break;
case FLAG_NTOPSTATE_PREINIT:
break;
case FLAG_NTOPSTATE_INIT:
break;
case FLAG_NTOPSTATE_INITNONROOT:
break;
case FLAG_NTOPSTATE_RUN:
break;
case FLAG_NTOPSTATE_STOPCAP:
break;
case FLAG_NTOPSTATE_SHUTDOWNREQ:
break;
case FLAG_NTOPSTATE_SHUTDOWN:
break;
case FLAG_NTOPSTATE_TERM:
break;
}
myGlobals.ntopRunState = newRunState;
traceEvent(CONST_TRACE_ALWAYSDISPLAY, "THREADMGMT[t%lu]: ntop RUNSTATE: %s(%d)",
(long unsigned int)pthread_self(),
stateTransitionTableNames[newRunState],
newRunState);
return(myGlobals.ntopRunState);
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifdef MAKE_WITH_SYSLOG
/*
* Create the table data. If we have the headers, we use the values, which
* is ripped from Linux's /usr/include/sys/syslog.h. If not, it's a table
* with just a null entry.
*
* NOTE: if various systems add facilities we want to support, or change
* the values, this has to be updated to be sensitive to the target system,
* compiler, etc.
*/
MYCODE myFacilityNames[] =
{
{ "auth", LOG_AUTH },
{ "cron", LOG_CRON },
{ "daemon", LOG_DAEMON },
{ "kern", LOG_KERN },
{ "lpr", LOG_LPR },
{ "mail", LOG_MAIL },
{ "news", LOG_NEWS },
{ "syslog", LOG_SYSLOG },
{ "user", LOG_USER },
{ "uucp", LOG_UUCP },
{ "local0", LOG_LOCAL0 },
{ "local1", LOG_LOCAL1 },
{ "local2", LOG_LOCAL2 },
{ "local3", LOG_LOCAL3 },
{ "local4", LOG_LOCAL4 },
{ "local5", LOG_LOCAL5 },
{ "local6", LOG_LOCAL6 },
{ "local7", LOG_LOCAL7 },
{ NULL, -1 } /* Sentinal entry */
};
#endif
|