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Commit Graph

120 Commits (92568c3857276f03697ef27083768b265c49cbf3)

Author SHA1 Message Date
Eric Leblond 286258df86 pcap: add warning about GRO and LRO usage 
Use the new GetIfaceOffloading function to display a warning message
if pcap capture is used on Linux with GRO or LRO activated. This is
helpful for kernel after 2.6.31 were pcap will use mmaped capture.
TPACKET_V2 is used and this limit the size of the packet resulting
in truncated packets when merged packets are received.
 12 years ago
Victor Julien 2982408155 pcap: register counters for old pcap versions as well 12 years ago
Victor Julien 677cd03e52 Counters: more unused code removal 12 years ago
Victor Julien 698ff4e4aa Counters: remove all unused parts of the API 12 years ago
Ken Steele 5532af4621 Create SCMUTEX_INITIALIZER to abstract out PTHREAD_MUTEX_INITIALIZER 
This allows replacing pthread mutexes with other types of mutex.
 12 years ago
Victor Julien fc7879322e Rename GetIfaceMaxPayloadSize to GetIfaceMaxPacketSize to reflect the actual function. 12 years ago
Victor Julien bd21b5ed9c Pcap: fix snaplen autodetection, GetIfaceMTU doesn't include link layer length 12 years ago
Anoop Saldanha e7f09f24c8 Code to enable cuda support for live mode pcap and af-packet. Keep an eye 
out on the mailing list and http://planet.suricata-ids.org for performance
and other profiling data.
 12 years ago
Eric Leblond 21dda8674d Fix build with old pcap library. 
Pcap snaplen related modification broke compilation of Suricata for
system having old pcap library. This patch fixes the issue and allow
old pcap library to honour the snaplen value.
 13 years ago
Eric Leblond 2f0927fe9b pcap: add snaplen YAML variable 
This patch introduces 'snaplen' a new YAML variable in the pcap section.
It can be set per-interface to force pcap capture snaplen. If not set
it defaults to interface MTU if MTU can be known via a ioctl call and to
full capture if not.
 13 years ago
Eric Leblond e8aa66a44c pcap: add 'promisc' YAML configuration variable 
This patch adds a promisc variable to pcap configuration. It is
used to decided if interface is switched to promiscuous mode.
 13 years ago
Eric Leblond 1aaa828b63 pcap: set snaplen to MTU if available. 
Main objective of this patch is to use a dynamic snaplen to avoid
to truncate packet at the currently fixed snaplen.

It set snaplen to MTU length if the MTU can be retrieved. If not, it
does not set the snaplen which results in using a 65535 snaplen.

libpcap is trying to use mmaped capture and setup the ring by using buffer_size
as the total memory. It also use "rounded" snaplen as frame size. So if we set
snaplen to MTU when available we are optimal regarding the building of the ring.
 13 years ago
Eric Leblond 8d0260b27e Add atomic counter for iface drop. 13 years ago
Eric Leblond 7854c84972 pcap: add capture counters in stats.log. 
This patch adds three counters to stats.log:
    capture.kernel_packets    | RxPcapwlan0               | 4218
    capture.kernel_drops      | RxPcapwlan0               | 0
    capture.kernel_ifdrops    | RxPcapwlan0               | 0
This patch meant to fix bug #625.
 13 years ago
Victor Julien 829238e49c OpenBSD 5.2 build fixes, Unit test fix. 13 years ago
Anoop Saldanha b33986c887 Add a packet src for every packet generated inside suricata. 13 years ago
Eric Leblond e176be6fcc Use unlikely for error treatment. 
When handling error case on SCMallog, SCCalloc or SCStrdup
we are in an unlikely case. This patch adds the unlikely()
expression to indicate this to gcc.

This patch has been obtained via coccinelle. The transformation
is the following:

@istested@
identifier x;
statement S1;
identifier func =~ "(SCMalloc|SCStrdup|SCCalloc)";
@@

x = func(...)
... when != x
- if (x == NULL) S1
+ if (unlikely(x == NULL)) S1
 13 years ago
Eric Leblond c4f9d0e0e1 Fix invalid usage of operator. 13 years ago
Victor Julien cbeb8a86b7 pcap: fix compilation on old libpcap 13 years ago
Eric Leblond eaea832a4e pcap: handle failure of packet treatment 
If the loop is breaked, this means we've got a treatment error. We
don't need to reconnect but we must exit with correct status.
 13 years ago
Anoop Saldanha 34581ce902 rx TMs shouldn't return TM_ECODE_FAILED if engine is in shutdown mode + minor cleanup 13 years ago
Eric Leblond 0227a87fcb cleaning: fix warning when building with clang. 
clang was issuing some warnings related to unused return in function.
This patch adds some needed error treatment and ignore the rest of the
warnings by adding a cast to void.
 13 years ago
Anoop Saldanha bc6cf43840 #482 - use decode_flag for all decode TMs. Use the flag as a way to retrieve decode TMs from ThreadVars 13 years ago
Victor Julien 3181b492f4 pcap: lock pcap_compile and pcap_setfilter calls as they are not thread safe. Fixes issues with bpf filters and multiple interfaces. 13 years ago
Victor Julien e3f66c52ec pcap: fix double free issue with bpf filter and multiple interfaces. 13 years ago
Eric Leblond 91f42b6f41 pcap: fix "work by luck" code. 14 years ago
Victor Julien 11bdf4838f Various improvements to error handling found by Coverity. 14 years ago
Victor Julien cdba2f50d1 Various fixes and improvements based on feedback by Coverity analyzer. 14 years ago
Victor Julien c4b34e6ef7 Fix various minor clang/scan-build warnings. 14 years ago
Victor Julien 64f717c880 Set 'livedev' in pcap acquisition module for older libpcap version as well. Fixes a segv. 14 years ago
Victor Julien d24b3a0e50 Clean up csum detection output, misc fixes. 14 years ago
Eric Leblond 0399a06f4f pcap: fix typo 14 years ago
Eric Leblond db5ca0f3a4 pcap: add auto mode support 14 years ago
Eric Leblond 1d1271fd38 pcap: add support for checksum verif mode 
This patch adds support for checksum verification mode.
Auto mode is not yet supported.
 14 years ago
Victor Julien 6d8aa6829d Remove unused variable. 14 years ago
Eric Leblond 0d7f25580d pcap: improve error handling. 
Treat TmThreadsSlotProcessPkt return.
 14 years ago
Anoop Saldanha d68f182ebd introduce SCPerfSyncCounters/SCPerfSyncCounters macro to synchronize counters 14 years ago
Anoop Saldanha f7b1972263 update broken stats.log. Use pktacqloop funcs in pcap-file, pfring, pcap-live, af-pkt to sync counters - bug #343 14 years ago
Eric Leblond 45d5c3ca59 runmode: introduce configuration dereferencing. 
A devide configuration can be used by multiple threads. It is thus
necessary to wait that all threads stop using the configuration before
freeing it. This patch introduces an atomic counter and a free function
which has to be called by each thread when it will not use anymore
the structure. If the configuration is not used anymore, it is freed
by the free function.
 14 years ago
Eric Leblond d3d99ffa13 Fix coding style and use SC* function. 
This patch fixes the coding style and uses Suricata function instead
of plain lic version.
 14 years ago
Eric Leblond d3d8beb337 pcap: factorize runmode 
This patch factorizes auto and autofp runmodes for pcap.
 14 years ago
Anoop Saldanha 3f1c4efceb Add new flags var to tm module. TMs can now set flags to identify special properties. Also use these to identify receive TMs 14 years ago
Eric Leblond de1d002ea6 Return OK when leaving cleanly. 14 years ago
Eric Leblond 2631e5f14f pcap: get rid of old API. 14 years ago
Eric Leblond effa295489 pcap: add "single" runmode 
This patch adds support for the "single" mode to the pcap live
mode.
 14 years ago
Eric Leblond 871b21892a factorize pcap live device function 
They are not specific to pcap and could thus be used in other module.
 14 years ago
Victor Julien 820b0ded82 Add per packet profiling. 
Per packet profiling uses tick based accounting. It has 2 outputs, a summary
and a csv file that contains per packet stats.

Stats per packet include:
 1) total ticks spent
 2) ticks spent per individual thread module
 3) "threading overhead" which is simply calculated by subtracting (2) of (1).

A number of changes were made to integrate the new code in a clean way:
a number of generic enums are now placed in tm-threads-common.h so we can
include them from any part of the engine.

Code depends on --enable-profiling just like the rule profiling code.

New yaml parameters:

profiling:
  # packet profiling
  packets:

    # Profiling can be disabled here, but it will still have a
    # performance impact if compiled in.
    enabled: yes
    filename: packet_stats.log
    append: yes

    # per packet csv output
    csv:

      # Output can be disabled here, but it will still have a
      # performance impact if compiled in.
      enabled: no
      filename: packet_stats.csv

Example output of summary stats:

IP ver   Proto   cnt        min      max          avg
------   -----   ------     ------   ----------   -------
 IPv4       6     19436      11448      5404365     32993
 IPv4     256         4      11511        49968     30575

Per Thread module stats:

Thread Module              IP ver   Proto   cnt        min      max          avg
------------------------   ------   -----   ------     ------   ----------   -------
TMM_DECODEPCAPFILE          IPv4       6     19434       1242        47889      1770
TMM_DETECT                  IPv4       6     19436       1107       137241      1504
TMM_ALERTFASTLOG            IPv4       6     19436         90         1323       155
TMM_ALERTUNIFIED2ALERT      IPv4       6     19436        108         1359       138
TMM_ALERTDEBUGLOG           IPv4       6     19436         90         1134       154
TMM_LOGHTTPLOG              IPv4       6     19436        414      5392089      7944
TMM_STREAMTCP               IPv4       6     19434        828      1299159     19438

The proto 256 is a counter for handling of pseudo/tunnel packets.

Example output of csv:

pcap_cnt,ipver,ipproto,total,TMM_DECODENFQ,TMM_VERDICTNFQ,TMM_RECEIVENFQ,TMM_RECEIVEPCAP,TMM_RECEIVEPCAPFILE,TMM_DECODEPCAP,TMM_DECODEPCAPFILE,TMM_RECEIVEPFRING,TMM_DECODEPFRING,TMM_DETECT,TMM_ALERTFASTLOG,TMM_ALERTFASTLOG4,TMM_ALERTFASTLOG6,TMM_ALERTUNIFIEDLOG,TMM_ALERTUNIFIEDALERT,TMM_ALERTUNIFIED2ALERT,TMM_ALERTPRELUDE,TMM_ALERTDEBUGLOG,TMM_ALERTSYSLOG,TMM_LOGDROPLOG,TMM_ALERTSYSLOG4,TMM_ALERTSYSLOG6,TMM_RESPONDREJECT,TMM_LOGHTTPLOG,TMM_LOGHTTPLOG4,TMM_LOGHTTPLOG6,TMM_PCAPLOG,TMM_STREAMTCP,TMM_DECODEIPFW,TMM_VERDICTIPFW,TMM_RECEIVEIPFW,TMM_RECEIVEERFFILE,TMM_DECODEERFFILE,TMM_RECEIVEERFDAG,TMM_DECODEERFDAG,threading
1,4,6,172008,0,0,0,0,0,0,47889,0,0,48582,1323,0,0,0,0,1359,0,1134,0,0,0,0,0,8028,0,0,0,49356,0,0,0,0,0,0,0,14337

First line of the file contains labels.

2 example gnuplot scripts added to plot the data.
 14 years ago
William 61fe05b220 Fix for silly pcap counters mistake made by me. ps_recv includes dropped packets. 14 years ago
Eric Leblond 586aae0ff3 Indentation fix on source-pcap. 14 years ago
Victor Julien 8654469133 Fixing libpcap 0.x.x specific code, take 2. 15 years ago