Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 4101 (LWP 1199)]
0x4027e106 in purgeIdleHosts (actDevice=0) at hash.c:581
581 myGlobals.device[actDevice].hash_hostTraffic[idx]->numUses =
0;
556 purgeOldFragmentEntries(actDevice); /* let's do this too */
557 #ifdef MULTITHREADED
558 releaseMutex(&myGlobals.hostsHashMutex);
559 #endif
560
561 len =
sizeof(HostTraffic*)*myGlobals.device[actDevice].actualHashSize;
562 theFlaggedHosts = (HostTraffic**)malloc(len);
563 memset(theFlaggedHosts, 0, len);
564
565 #ifdef MULTITHREADED
566 accessMutex(&myGlobals.hostsHashMutex, "scanIdleLoop");
567 #endif
568 /* Calculates entries to free */
569 for(idx=1; idx<myGlobals.device[actDevice].actualHashSize; idx++)
570 if(myGlobals.device[actDevice].hash_hostTraffic[idx] != NULL) {
571 if((idx != myGlobals.otherHostEntryIdx)
572 &&
(myGlobals.device[actDevice].hash_hostTraffic[idx]->numUses == 0)
573 &&
(!subnetPseudoLocalHost(myGlobals.device[actDevice].hash_hostTraffic[idx])))
{
574
575 if(!myGlobals.stickyHosts) {
576 theFlaggedHosts[idx] =
myGlobals.device[actDevice].hash_hostTraffic[idx];
577 myGlobals.device[actDevice].hash_hostTraffic[idx] = NULL;
578 }
579 }
580
581 myGlobals.device[actDevice].hash_hostTraffic[idx]->numUses =
0;
582 }
583 #ifdef MULTITHREADED
584 releaseMutex(&myGlobals.hostsHashMutex);
585 #endif
(gdb) print actDevice
$1 = 0
(gdb) print idx
$2 = 9
(gdb) print myGlobals.device[actDevice]
$3 = {name = 0x822d388 "eth0", flags = 0, addr = 0, ipdot = 0x0, fqdn = 0x0,
network = {s_addr = 3232246272}, netmask = {
s_addr = 4294967040}, numHosts = 256, ifAddr = {s_addr = 3232246278},
started = 0, firstpkt = 0, lastpkt = 0,
pcapPtr = 0x822b640, pcapDumper = 0x0, pcapErrDumper = 0x0, virtualDevice
= 0 '\000', snaplen = 0, datalink = 1,
filter = 0x0, fd = 0, fdv = 0x0, hashing = 0, ethv = 0, ipv = 0, tcpv = 0,
droppedPkts = 0, ethernetPkts = 346,
broadcastPkts = 126, multicastPkts = 0, ipPkts = 213, ethernetBytes =
48061, ipBytes = 40153, fragmentedIpBytes = 0,
tcpBytes = 26397, udpBytes = 6154, otherIpBytes = 0, icmpBytes = 112,
dlcBytes = 0, ipxBytes = 0, stpBytes = 0,
decnetBytes = 0, netbiosBytes = 0, arpRarpBytes = 6046, atalkBytes = 0,
ospfBytes = 0, egpBytes = 0, igmpBytes = 0,
osiBytes = 0, qnxBytes = 0, otherBytes = 0, lastMinEthernetBytes = 47941,
lastFiveMinsEthernetBytes = 0,
lastMinEthernetPkts = 344, lastFiveMinsEthernetPkts = 0,
lastNumEthernetPkts = 344, lastEthernetPkts = 0,
lastTotalPkts = 0, lastBroadcastPkts = 0, lastMulticastPkts = 0,
lastEthernetBytes = 0, lastIpBytes = 0,
lastNonIpBytes = 0, rcvdPktStats = {upTo64 = 216, upTo128 = 65, upTo256 =
33, upTo512 = 15, upTo1024 = 7, upTo1518 = 10,
above1518 = 0, shortest = 42, longest = 1514, badChecksum = 0, tooLong =
0}, rcvdPktTTLStats = {upTo32 = 2,
upTo64 = 14, upTo96 = 93, upTo128 = 21, upTo160 = 69, upTo192 = 0,
upTo224 = 0, upTo255 = 14},
peakThroughput = 1218.85291, actualThpt = 63.4000015, lastMinThpt =
63.0999985, lastFiveMinsThpt = 0,
peakPacketThroughput = 7.23529434, actualPktsThpt = 1.0333333,
lastMinPktsThpt = 1.0333333, lastFiveMinsPktsThpt = 0,
lastThptUpdate = 1014200673, lastMinThptUpdate = 1014200673,
lastHourThptUpdate = 1014200549,
lastFiveMinsThptUpdate = 1014200549, throughput = 47941, packetThroughput
= 344, numThptSamples = 2, last60MinutesThpt = {
{trafficValue = 63.0999985, topHostSentIdx = 4, secondHostSentIdx = 7,
thirdHostSentIdx = 8, topSentTraffic = 33,
secondSentTraffic = 7, thirdSentTraffic = 4, topHostRcvdIdx = 2,
secondHostRcvdIdx = 8, thirdHostRcvdIdx = 1,
topRcvdTraffic = 4, secondRcvdTraffic = 3, thirdRcvdTraffic = 0},
{trafficValue = 689.921875, topHostSentIdx = 4,
secondHostSentIdx = 17, thirdHostSentIdx = 9, topSentTraffic = 30,
secondSentTraffic = 11, thirdSentTraffic = 9,
topHostRcvdIdx = 6, secondHostRcvdIdx = 2, thirdHostRcvdIdx = 8,
topRcvdTraffic = 6, secondRcvdTraffic = 5,
thirdRcvdTraffic = 3}, {trafficValue = 0, topHostSentIdx = 0,
secondHostSentIdx = 0, thirdHostSentIdx = 0,
topSentTraffic = 0, secondSentTraffic = 0, thirdSentTraffic = 0,
topHostRcvdIdx = 0, secondHostRcvdIdx = 0,
thirdHostRcvdIdx = 0, topRcvdTraffic = 0, secondRcvdTraffic = 0,
thirdRcvdTraffic = 0} <repeats 58 times>},
last24HoursThpt = {{trafficValue = 0, topHostSentIdx = 0,
secondHostSentIdx = 0, thirdHostSentIdx = 0,
topSentTraffic = 0, secondSentTraffic = 0, thirdSentTraffic = 0,
topHostRcvdIdx = 0, secondHostRcvdIdx = 0,
thirdHostRcvdIdx = 0, topRcvdTraffic = 0, secondRcvdTraffic = 0,
thirdRcvdTraffic = 0} <repeats 24 times>},
last30daysThpt = {0 <repeats 30 times>}, last60MinutesThptIdx = 2,
last24HoursThptIdx = 0, last30daysThptIdx = 0,
tcpGlobalTrafficStats = {local = 31609, local2remote = 0, remote = 0,
remote2local = 0, lastLocal = 0,
lastLocal2remote = 0, lastRem = 0, lastRem2local = 0},
udpGlobalTrafficStats = {local = 821, local2remote = 84,
remote = 6007, remote2local = 1520, lastLocal = 0, lastLocal2remote = 0,
lastRem = 0, lastRem2local = 0},
icmpGlobalTrafficStats = {local = 112, local2remote = 0, remote = 0,
remote2local = 0, lastLocal = 0,
lastLocal2remote = 0, lastRem = 0, lastRem2local = 0}, ipProtoStats =
0x8234b48, numEstablishedTCPConnections = 11,
pcapDispatchThreadId = 9226, hostsno = 30, actualHashSize = 32,
hashThreshold = 0, topHashThreshold = 0,
hash_hostTraffic = 0x8231938, insertIdx = 30, hashList = 0x4076e008,
fragmentList = 0x0, tcpSession = 0x406ec008,
numTotSessions = 65535, numTcpSessions = 1, ipTrafficMatrix = 0x406a4008,
ipTrafficMatrixHosts = 0x822ca50,
ipTrafficMatrixPromiscHosts = {__fds_bits = {0 <repeats 32 times>}}}
(gdb) print myGlobals.device[actDevice].hash_hostTraffic[idx]
$4 = (struct hostTraffic *) 0x0
(gdb) print myGlobals.device[actDevice].hash_hostTraffic[idx].numUses
Cannot access memory at address 0x4
(gdb)
It LOOKS like hash_HostTraffic hasn't been created yet...
As a quick and dirty, I've patched it this way:
if (myGlobals.device[actDevice].hash_hostTraffic[idx] != NULL) {
myGlobals.device[actDevice].hash_hostTraffic[idx]->numUses = 0;
}
-----Burton
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