n t o p v e r s i o n '2.2c' p r o b l e m r e p o r t
From: David L. Kindred
EMail: [EMAIL PROTECTED]
Date: 2003-08-15 19:04:24 GMT
Problem Report Id: PR_Q9VTLZ
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Summary [note: same data sanitized in anticipation of a public archive]
OS: Linux version: Trustix Secure Linux V 1.5 (2.2.25 Kernel)
ntop from: Source
Hardware: CPU: i586
# Processors: 1
Memory: 64 MB
Network:
Network Interface 0 eth0
Ethernet: 485194
Broadcast: 1913
Multicast: 84
IP: 481215
Mfg: Unknown Model: Unknown
NIC Speed: 10/100 Bus: PCI
Location: LAN
Bandwidth: 100Mbps+
# Hosts (machines): Unknown
Network Interface 1 eth1
Ethernet: 305775
Broadcast: 336
Multicast: 15
IP: 304278
Mfg: Unknown Model: Unknown
NIC Speed: 10/100 Bus: PCI
Location: Public Internet
Bandwidth: T1
# Hosts (machines): Unknown
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Log extract
None saved, but I can supply one on request if needed.
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Problem Description
The rrdPlugin is susceptible to the SIGPIPE problem. Copying the simple
"PIPEhandler" from webInterface.c (without the counter code), and then
changing the "signal" registration for SIGPIPE in plugins/rrdPlugin.c seems
to correct the problem. It is not clear to me if the more complicated
SIGPIPE handling code is needed in this module, so more research may be
needed before creating a proper patch.
Also, the SIGPIPE problem seems to be more widespread than some of the code
comments imply, although it does seem to be related to using Internet
Explorer as the Browser.
----------------------------------------------------------------------------
ntop version.....2.2c
Built on.....08/14/03 05:14:02 PM
OS.....i586-pc-linux-gnu
ntop Process Id.....6704
http Process Id.....6713
Command line
Started as..../usr/local/bin/ntop -d @/etc/ntop.conf
Resolved to..../usr/local/bin/ntop
-d
--user
ntop
--db-file-path
/home/ntop/run
--interface
eth0,eth1
--use-syslog=local5
--http-server
xxx.xxx.xxx.xxx
--https-server
0
--local-subnets
xxx.xxx.xxx.xxx/xx
--domain
telesciences.com
--reuse-rrd-graphics
--daemon
--ignore-sigpipe
--access-log-path
/home/ntop/log/access
--create-suspicious-packets
--output-packet-path
/home/ntop/packets/
--no-interface-merge
--flow-spec
xxxxxxxxxxxxxx
Command line parameters are:
-a | --access-log-path...../home/ntop/log/access
-b | --disable-decoders.....(default) No
-c | --sticky-hosts.....(default) No
-d | --daemon.....Yes
-e | --max-table-rows.....(default) 128
-f | --traffic-dump-file.....(default) (nil)
-g | --track-local-hosts.....(default) Track all hosts
-o | --no-mac.....(default) Trust MAC Addresses
-i | --interface (effective).....eth0, eth1
-k | --filter-expression-in-extra-frame.....(default) No
-l | --pcap-log.....(default) (nil)
-m | --local-subnets (effective).....
-n | --numeric-ip-addresses.....(default) No
-p | --protocols.....(default) internal list
-q | --create-suspicious-packets.....Enabled
-r | --refresh-time.....(default) 120
-s | --no-promiscuous.....(default) No
-t | --trace-level.....(default) 3
-u | --user.....ntop (uid=501, gid=500)
-w | --http-server.....Active, address xxx.xxx.xxx.xxx, port 3000
-z | --disable-sessions.....(default) No
-B | --filter-expression.....(default) none
-D | --domain.....telesciences.com
-E | --enable-external-tools.....(default) No
-F | --flow-spec.....xxxxxxxxxxx
-K | --enable-debug.....(default) No
-L | --use-syslog.....local5
-M | --no-interface-merge (effective).....(parameter -M set, Interfaces
separate) No
-O | --pcap-file-path...../home/ntop/packets/
-P | --db-file-path...../home/ntop/run
-U | --mapper.....(default) (nil)
-W | --https-server.....Uninitialized
--throughput-chart-type.....(default) Area
--ignore-sigpipe.....Yes
--ssl-watchdog.....(default) No
--dynamic-purge-limits.....(default) No
--reuse-rrd-graphics.....Yes
--p3p-cp.....(default) none
--p3p-uri.....(default) none
--disable-stopcap.....(default) No
--disable-instantsessionpurge.....(default) No
Note: (effective) means that this is the value after ntop has processed
the parameter.
(default) means this is the default value, usually (but not always) set by
a #define in globals-defines.h.
Run time/Internal
External tool: lsof.....(no -E parameter): Disabled
Web server URL.....http://xxx.xxx.xxx.xxx:3000
SSL Web server (https://).....Not Active
GDBM version.....This is GDBM version 1.8.0, as of May 19, 1999.
OpenSSL Version.....OpenSSL 0.9.6 24 Sep 2000
zlib version.....1.1.4
Protocol Decoders.....Enabled
Fragment Handling.....Enabled
Tracking only local hosts.....No
# IP Protocols Being Monitored.....18
# Protocol slots.....520
# IP Ports Being Monitored.....56
# Ports slots.....112
# Handled SIGPIPE Errors.....20
# Handled HTTP Requests.....365
Devices (Network Interfaces).....2
Domain name (short).....com
IP to country flag table (entries).....47455
Total Hash Collisions (Vendor/Special) (lookup).....0
Local Networks.....xxx.xxx.xxx.xxx/xxx.xxx.xxx.xxx [device eth1]
Memory allocation - data segment
arena limit, getrlimit(RLIMIT_DATA, ...).....2147483647
Allocated blocks (ordblks).....1459
Allocated (arena).....18417196
Used (uordblks).....17189484
Free (fordblks).....1227712
Memory allocation - mmapped
Allocated blocks (hblks).....7
Allocated bytes (hblkhd).....2252800
Memory Usage
IPX/SAP Hash Size (bytes).....1897
IP to country flag table (bytes).....1454304 (1.4 MB)
Bytes per entry.....30.6
Current memory usage.....20669996
Base memory usage.....5588524
Hosts stored (active+cache).....1313 = (1034 + 279)
(very) Approximate memory per host.....11.3KB
Host Memory Cache
Limit.....#define MAX_HOSTS_CACHE_LEN 512
Current Size.....279
Maximum Size.....511
# Entries Reused.....7334
MAC/IPX Hash tables
IPX/SAP Hash Size (entries).....179
IPX/SAP Hash Collisions (load).....0
IPX/SAP Hash Collisions (use).....0
Packet queue
Queued to Process.....0
Maximum queue.....0
Host/Session counts - global
Purge idle hosts.....Enabled
Purged hosts.....7613
Maximum hosts to purge per cycle.....512
DEFAULT_MAXIMUM_HOSTS_PURGE_PER_CYCLE.....512
Terminated Sessions.....42,425
Host/Session counts - Device 0 (eth0)
Hash Bucket Size.....1.5 KB
Actual Hash Size.....1024
Stored hosts.....536 [52 %]
Session Bucket Size.....228
Sessions.....510
Max Num. Sessions.....1,024
Host/Session counts - Device 1 (eth1)
Hash Bucket Size.....1.5 KB
Actual Hash Size.....1024
Stored hosts.....498 [48 %]
Session Bucket Size.....228
Sessions.....365
Max Num. Sessions.....853
Address Resolution
DNS sniffed:
DNS Packets sniffed.....43126
less 'requests'.....22378
less 'failed'.....2754
less 'reverse dns' (in-addr.arpa).....7560
DNS Packets processed.....10434
Stored in cache (includes aliases).....13922
IP to name - ipaddr2str():
Total calls.....8631
....OK.....4708
....Total not found.....3923
........Not found in cache.....3923
........Too old in cache.....0
Queued - dequeueAddress():
Total Queued.....2153
Not queued (duplicate).....1770
Maximum Queued.....90
Current Queue.....7
Resolved - resolveAddress():
Addresses to resolve.....2147
....less 'Error: No cache database'.....0
....less 'Found in ntop cache'.....134
Gives: # gethost (DNS lookup) calls.....2013
DNS lookup calls:
DNS resolution attempts.....2013
....Success: Resolved.....1581
....Failed.....431
........HOST_NOT_FOUND.....358
........NO_DATA.....0
........NO_RECOVERY.....0
........TRY_AGAIN (don't store).....73
........Other error (don't store).....0
DNS lookups stored in cache.....1939
Host addresses kept numeric.....431
Vendor Lookup Table
Input lines read.....42177
Records added total.....6945
.....includes special records.....59
getVendorInfo() calls.....0
getSpecialVendorInfo() calls.....115
Found 48bit (xx:xx:xx:xx:xx:xx) match.....0
Found 24bit (xx:xx:xx) match.....104
Found multicast bit set.....0
Found LAA (Locally assigned address) bit set.....0
Thread counts
Active.....7
Dequeue.....1
Children (active).....112
Directory (search) order
Data Files......
/usr/local/share/ntop
Config Files......
/usr/local/etc/ntop
/etc
Plugins....../plugins
/usr/local/lib/ntop/plugins
Compile Time: ./configure
./configure parameters.....--with-rrd-root=/usr/local/rrdtool-1.0.45
Built on (Host).....i586-pc-linux-gnu
Built for (Target).....i586-pc-linux-gnu
compiler (cflags).....gcc -DLINUX -g -O2 -Wshadow -Wpointer-arith
-Wmissing-prototypes -Wmissing-declarations -Wnested-externs -fPIC
-DHAVE_CONFIG_H
include path.....-I/usr/local/src/ntop/gdchart0.94c/zlib-1.1.4
-I/usr/local/src/ntop/gdchart0.94c
-I/usr/local/src/ntop/gdchart0.94c/gd-1.8.3
-I/usr/local/src/ntop/gdchart0.94c/gd-1.8.3/libpng-1.2.4
-I/usr/local/rrdtool-1.0.45/include
system libraries.....-lglib -lpthread -lresolv -lnsl -lssl -lcrypto -lpcap
-lgdbm -ldl -lcrypt -lc -L/usr/local/src/ntop/gdchart0.94c/zlib-1.1.4 -lz
-L/usr/local/src/ntop/gdchart0.94c -lgdchart
-L/usr/local/src/ntop/gdchart0.94c/gd-1.8.3 -lgd
-L/usr/local/src/ntop/gdchart0.94c/gd-1.8.3/libpng-1.2.4 -lpng
-L/usr/local/rrdtool-1.0.45/lib -lrrd
install path...../usr/local
GNU C (gcc) version.....2.95.3 20010315 (release) (2.95.0)
Internationalization (i18n)
i18n enabled.....No
Compile Time: Debug settings in globals-defines.h
DEBUG.....no
ADDRESS_DEBUG.....no
DNS_DEBUG.....no
DNS_SNIFF_DEBUG.....no
FTP_DEBUG.....no
GDBM_DEBUG.....no
HASH_DEBUG.....no
HOST_FREE_DEBUG.....no
HTTP_DEBUG.....no
IDLE_PURGE_DEBUG.....no
MEMORY_DEBUG.....no
NETFLOW_DEBUG.....no
SEMAPHORE_DEBUG.....no
SESSION_TRACE_DEBUG.....no
SSLWATCHDOG_DEBUG.....no
STORAGE_DEBUG.....no
UNKNOWN_PACKET_DEBUG.....no
Compile Time: globals-define.h
PARM_PRINT_ALL_SESSIONS.....no
PARM_PRINT_RETRANSMISSION_DATA.....no
PARM_FORK_CHILD_PROCESS.....yes (normal)
CGI Scripts.....globals-defines.h: #define PARM_USE_CGI
Alternate row colors.....globals-defines.h: /* #define PARM_USE_COLOR */
Buggy gethostbyaddr() - use alternate implementation.....globals-defines.h:
/* #define PARM_USE_HOST */
MAKE_ASYNC_ADDRESS_RESOLUTION.....yes
MAKE_WITH_SSLWATCHDOG.....yes
MAKE_WITH_SSLWATCHDOG_RUNTIME (derived).....yes
Bad IP Address table size.....globals-defines.h: #define
MAX_NUM_BAD_IP_ADDRESSES 3
Minimum refresh interval (seconds).....#define
PARM_MIN_WEBPAGE_AUTOREFRESH_TIME 15
Maximum # of Protocols to show in graphs.....#define MAX_NUM_PROTOS 64
Maximum # of routers (Local Subnet Routers report).....#define
MAX_NUM_ROUTERS 512
Maximum # of network interface devices.....#define MAX_NUM_DEVICES 32
Maximum # of processes for lsof report.....#define
MAX_NUM_PROCESSES_READLSOFINFO 1024
Maximum network size (hosts per interface).....#define MAX_SUBNET_HOSTS 1024
Allocated # of passive FTP sessions.....#define
MAX_PASSIVE_FTP_SESSION_TRACKER 384
Inactive passive FTP session timeout (seconds).....#define
PARM_PASSIVE_SESSION_MINIMUM_IDLE 60
Compile Time: Hash Table Sizes
Initial size.....#define CONST_HASH_INITIAL_SIZE 32
After 1st extend.....#define CONST_HASH_MINIMUM_SIZE 512
Intermediate increase factor.....#define CONST_HASH_INCREASE_FACTOR 2
Factor growth until.....#define CONST_HASH_FACTOR_MAXIMUM 4096
Then grow (linearly) by.....#define CONST_HASH_TERMINAL_INCREASE 4096
Compile Time: globals-define.h
Chart Format.....globals-report.h: #define CHART_FORMAT ".png"
Compile Time: config.h
CFG_ETHER_HEADER_HAS_EA.....no
CFG_MULTITHREADED.....yes
HAVE_ALARM.....yes
HAVE_ALLOCA.....yes
HAVE_ALLOCA_H.....yes
HAVE_ARPA_NAMESER_H.....yes
HAVE_BACKTRACE.....yes
HAVE_BZERO.....yes
HAVE_CTIME_R.....yes
HAVE_CURSES_H.....no
HAVE_DLFCN_H.....yes
HAVE_DL_H.....no
HAVE_DOPRNT.....no
HAVE_ENDPWENT.....yes
HAVE_ERRNO_H.....yes
HAVE_FACILITYNAMES.....yes
HAVE_FCNTL_H.....yes
HAVE_FORK.....yes
HAVE_GDBM_H.....yes
HAVE_GDCPIE_H.....yes
HAVE_GD_H.....yes
HAVE_GDOME_H.....no
HAVE_GETHOSTBYADDR.....yes
HAVE_GETHOSTBYADDR_R.....yes
HAVE_GETHOSTBYNAME.....yes
HAVE_GETHOSTNAME.....yes
HAVE_GETIPNODEBYADDR.....no
HAVE_GETPASS.....yes
HAVE_GETTIMEOFDAY.....yes
HAVE_GLIBCONFIG_H.....no
HAVE_GLIB_H.....no
HAVE_IF_H.....no
HAVE_IN6_ADDR.....yes
HAVE_INT16_T.....yes
HAVE_INT32_T.....yes
HAVE_INT64_T.....yes
HAVE_INT8_T.....yes
HAVE_INTTYPES_H.....yes
HAVE_LANGINFO_H.....yes
HAVE_LIBC.....yes
HAVE_LIBCRYPT.....yes
HAVE_LIBCRYPTO.....yes
HAVE_LIBDL.....yes
HAVE_LIBDLD.....no
HAVE_LIBGD.....yes
HAVE_LIBGDBM.....yes
HAVE_LIBGDOME.....no
HAVE_LIBGLIB.....yes
HAVE_LIBM.....no
HAVE_LIBNSL.....yes
HAVE_LIBPCAP.....yes
HAVE_LIBPNG.....yes
HAVE_LIBPOSIX4.....no
HAVE_LIBPTHREAD.....yes
HAVE_LIBPTHREADS.....no
HAVE_LIBRESOLV.....yes
HAVE_LIBRT.....no
HAVE_LIBSOCKET.....no
HAVE_LIBSSL.....yes
HAVE_LIBWRAP.....no
HAVE_LIBXML2.....no
HAVE_LIBZ.....yes
HAVE_LIMITS_H.....yes
HAVE_LOCALE_H.....yes
HAVE_LOCALTIME_R.....yes
HAVE_LONG_DOUBLE.....no
HAVE_MATH_H.....yes
HAVE_MEMCHR.....yes
HAVE_MEMORY_H.....yes
HAVE_MEMSET.....yes
HAVE_NCURSES_H.....no
HAVE_NDIR_H.....no
HAVE_NETDB_H.....yes
HAVE_OPENSSL.....yes
HAVE_OPENSSL_CRYPTO_H.....yes
HAVE_OPENSSL_ERR_H.....yes
HAVE_OPENSSL_PEM_H.....yes
HAVE_OPENSSL_RSA_H.....yes
HAVE_OPENSSL_SSL_H.....yes
HAVE_OPENSSL_X509_H.....yes
HAVE_PCAP_FREECODE.....yes
HAVE_PCAP_H.....yes
HAVE_PCAP_OPEN_DEAD.....yes
HAVE_PNG_H.....yes
HAVE_PTHREAD_H.....yes
HAVE_PUTENV.....yes
HAVE_PWD_H.....yes
HAVE_READLINE.....no
HAVE_READLINE_READLINE_H.....no
HAVE_RE_COMP.....yes
HAVE_REGCOMP.....yes
HAVE_REGEX.....yes
HAVE_RRD.....yes
HAVE_RRD_H.....yes
HAVE_SCHED_H.....yes
HAVE_SCHED_YIELD.....yes
HAVE_SECURITY_PAM_APPL_H.....yes
HAVE_SELECT.....yes
HAVE_SEMAPHORE_H.....yes
HAVE_SETJMP_H.....yes
HAVE_SHADOW_H.....yes
HAVE_SIGNAL_H.....yes
HAVE_SNPRINTF.....yes
HAVE_SOCKET.....yes
HAVE_SQRT.....yes
HAVE_STDARG_H.....yes
HAVE_STDIO_H.....yes
HAVE_STDLIB_H.....yes
HAVE_STRCASECMP.....yes
HAVE_STRCHR.....yes
HAVE_STRCSPN.....yes
HAVE_STRDUP.....yes
HAVE_STRERROR.....yes
HAVE_STRFTIME.....yes
HAVE_STRING_H.....yes
HAVE_STRINGS_H.....yes
HAVE_STRNCASECMP.....yes
HAVE_STRPBRK.....yes
HAVE_STRRCHR.....yes
HAVE_STRSPN.....yes
HAVE_STRSTR.....yes
HAVE_STRTOK_R.....yes
HAVE_STRTOUL.....yes
HAVE_SYS_DIR_H.....no
HAVE_SYS_IOCTL_H.....yes
HAVE_SYS_LDR_H.....no
HAVE_SYS_NDIR_H.....no
HAVE_SYS_RESOURCE_H.....yes
HAVE_SYS_SCHED_H.....no
HAVE_SYS_SOCKIO_H.....no
HAVE_SYS_TIME_H.....yes
HAVE_SYS_TYPES_H.....yes
HAVE_SYS_UN_H.....yes
HAVE_TCPD_H.....yes
HAVE_TM_ZONE.....yes
HAVE_TZNAME.....no
HAVE_U_INT16_T.....yes
HAVE_U_INT32_T.....yes
HAVE_U_INT64_T.....yes
HAVE_UINT64_T.....no
HAVE_U_INT8_T.....yes
HAVE_UNAME.....yes
HAVE_UNISTD_H.....yes
HAVE_VFORK.....yes
HAVE_VFORK_H.....no
HAVE_VPRINTF.....yes
HAVE_WORKING_FORK.....no
HAVE_WORKING_VFORK.....yes
HAVE_ZLIB_H.....yes
MAKE_MICRO_NTOP.....no
MAKE_WITH_FTPDATA_ASSUMED.....no
MAKE_WITH_GDCHART.....yes
MAKE_WITH_I18N.....no
MAKE_WITH_IGNORE_SIGPIPE.....no
MAKE_WITH_LARGERRDPOP.....no
MAKE_WITH_SSLV3_SUPPORT.....no
MAKE_WITH_SSLWATCHDOG_COMPILETIME.....no
MAKE_WITH_ZLIB.....yes
__PROTOTYPES.....yes
PROTOTYPES.....yes
SETVBUF_REVERSED.....no
TIME_WITH_SYS_TIME.....yes
TM_IN_SYS_TIME.....no
CFG_CONFIGFILE_DIR - config file directory...../usr/local/etc/ntop
CFG_DATAFILE_DIR - data file directory...../usr/local/share/ntop
CFG_DBFILE_DIR - database file directory...../usr/local/var/ntop
CFG_PLUGIN_DIR - plugin file directory...../usr/local/lib/ntop/plugins
CFG_RUN_DIR - run file directory...../usr/local/var/ntop
CFG_NEED_GETDOMAINNAME (getdomainname(2) function).....yes
CFG_xxxxxx_ENDIAN (Hardware Endian).....little
Compile Time: globals-defines.h
EMSGSIZE.....90
ETHERMTU.....1500
LEN_CMDLINE_BUFFER.....4096
LEN_FGETS_BUFFER.....512
LEN_GENERAL_WORK_BUFFER.....1024
LEN_MEDIUM_WORK_BUFFER.....64
LEN_SMALL_WORK_BUFFER.....16
LEN_TIME_STAMP_BUFFER.....2
MAKE_NTOP_PACKETSZ_DECLARATIONS.....no
MAKE_RMON_SUPPORT.....yes
MAKE_WITH_FORK_COPYONWRITE.....yes
MAKE_WITH_HTTPSIGTRAP.....yes
MAKE_WITH_RRDSIGTRAP.....yes
MAKE_WITH_SCHED_YIELD.....yes
MAKE_WITH_SEMAPHORES.....yes
MAKE_WITH_SYSLOG.....yes
MAKE_WITH_XMLDUMP.....no
MAX_ADDRESSES.....35
MAX_ALIASES.....35
MAX_ASSIGNED_IP_PORTS.....1024
MAXCDNAME.....255
MAX_DEVICE_NAME_LEN.....64
MAXDNAME.....1025
MAX_HASHDUMP_ENTRY.....65535
MAXHOSTNAMELEN.....64
MAX_HOSTS_CACHE_LEN.....512
MAX_IP_PORT.....65534
MAX_IPXSAP_NAME_HASH.....179
MAXLABEL.....63
MAX_LANGUAGES_REQUESTED.....4
MAX_LANGUAGES_SUPPORTED.....8
MAX_LASTSEEN_TABLE_SIZE.....4096
MAX_LEN_VENDOR_NAME.....64
MAX_NFS_NAME_HASH.....12288
MAX_NODE_TYPES.....8
MAX_NUM_BAD_IP_ADDRESSES.....3
MAX_NUM_CONTACTED_PEERS.....8
MAX_NUM_DEQUEUE_THREADS.....yes
MAX_NUM_DEVICES.....32
MAX_NUM_DHCP_MSG.....8
MAX_NUM_FIN.....4
MAX_NUM_IGNOREDFLOWS.....32
MAX_NUM_NETWORKS.....32
MAX_NUM_PROBES.....16
MAX_NUM_PROCESSES_READLSOFINFO.....1024
MAX_NUM_PROTOS.....64
MAX_NUM_PROTOS_SCREENS.....5
MAX_NUM_ROUTERS.....512
MAX_NUM_STORED_FLAGS.....4
MAX_PASSIVE_FTP_SESSION_TRACKER.....384
MAX_PER_DEVICE_HASH_LIST.....65535
MAX_SESSIONS_CACHE_LEN.....512
MAX_SSL_CONNECTIONS.....32
NAME_MAX.....255
NETDB_SUCCESS.....0
NS_CMPRSFLGS.....192
NS_MAXCDNAME.....255
PACKETSZ.....512
PARM_ENABLE_EXPERIMENTAL.....no
PARM_FORK_CHILD_PROCESS.....yes
PARM_MIN_WEBPAGE_AUTOREFRESH_TIME.....15
PARM_PASSIVE_SESSION_MINIMUM_IDLE.....60
PARM_PIPE_READ_TIMEOUT.....15
PARM_SESSION_PURGE_MINIMUM_IDLE.....600
PARM_SHOW_NTOP_HEARTBEAT.....no
PARM_SSLWATCHDOG_WAITWOKE_LIMIT.....5
PARM_USE_CGI.....yes
PARM_USE_COLOR.....no
PARM_USE_HOST.....no
PARM_USE_MACHASH_INVERT.....yes
PARM_USE_SESSIONS_CACHE.....no
PARM_WEDONTWANTTOTALKWITHYOU_INTERVAL.....300
SLL_HDR_LEN.....16
THREAD_MODE.....MT (SSL)
----------------------------------------------------------------------------
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