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231 Commits (6956c1c749fd97d48a989e3a98f3550b026ab0dc)

Author SHA1 Message Date
Anoop Saldanha 246a4e9fff for shutdown reassembly properly init the reassembly packet using PACKET_RECYCLE 14 years ago
pilcrow ed69eeab14 Safer macro parenthesization and do/while use 14 years ago
Anoop Saldanha 54f6e4ff4d Merge thread kill functions. Merge slot's tm_id with the one used by packet profiling. Remove some junk unused code from ms sync pts. Timeout setup cleanup as well. packet q dbg_maxlen now u32 var. 14 years ago
Anoop Saldanha b4887943fb packet queue len member is now 32 bit unsigned from the previous 16 bit unsigned. Should take care of the overflow for now 14 years ago
Anoop Saldanha 99207c718d Avoid possiblity of potential engine idling from consumption of all packetpool packets - v1 
- Now forced reassembly uses only malloced packets.
 14 years ago
Victor Julien cc4e89fbe1 Profiling: convert all packet profile counters/variables to u64. Improve output for larger numbers. 14 years ago
Victor Julien c590bba4a4 Undo tunnel reference counting using atomic operations. Revert to mutex based code. 14 years ago
Victor Julien 3693a7a9ee Profiling: add accounting for several detection phases. 14 years ago
Victor Julien e8e392fb1f Profiling: add per packet accounting of how much ticks are spend in protocol detection. 14 years ago
Eric Leblond 7425bf5ca6 Rename some decode event structure and macro. 
This patch renames DECODER_SET_EVENT, DECODER_ISSET_EVENT and some
other structures to ENGINE equivalent to take into account the fact
the event list is now related to all engines and not only to decoder.
 14 years ago
Victor Julien fca541f40e Add per app layer parser profiling 
Per packet per app layer parser profiling. Example summary output:

Per App layer parser stats:

App Layer              IP ver   Proto   cnt        min      max          avg
--------------------   ------   -----   ------     ------   ----------   -------
ALPROTO_HTTP            IPv4       6    163394        126     38560320     42814
ALPROTO_FTP             IPv4       6       644        117        26100      2566
ALPROTO_TLS             IPv4       6       670        117         7137       799
ALPROTO_SMB             IPv4       6    114794        126       225270       957
ALPROTO_DCERPC          IPv4       6      5207        126        25596      1266

Also added to the csv out.

In the csv out there is a new column "stream (no app)" that removes the
app layer parsers from the stream tracking. So raw stream engine performance
becomes visible.
 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
Eric Leblond a8ae1c42c3 Fix macro about default packet size 
Being pessimistic about packet default size has side effect in
some module. Falling back to the sane correct value.
 14 years ago
Victor Julien ad175c8aec Fix complition on OS/archs that don't support atomic variables. 14 years ago
Victor Julien e1d4e16645 Simplify packet decoding macro's. 14 years ago
Victor Julien 52eb8d2be0 Convert mutex protected tunnel counters to lockless atomic counters. 14 years ago
Victor Julien 54cd3552e1 Remove tunnel_proto field from Packet structure. 14 years ago
Victor Julien 3d22713b09 Convert Packet tunnel variables to bit flag checks. 14 years ago
Victor Julien 75439863ed Shrink PacketAlerts structure so that Packet structure is a lot smaller. Reduce max events per packet from 256 to 15. 14 years ago
Victor Julien 9ca0658a6e Clear pcap_cnt variable on packet recycle. 15 years ago
Victor Julien 864c8718e1 Store matching stream msg (ptr) in packets alert structure so it's available to the output plugins. 15 years ago
Victor Julien bc7e21aee6 Add special sguil mode to log-pcap to support logging into date based directory structure and rotate when the day passes. Also do not log packets beyond stream reassembly depth and encrypted traffic. 15 years ago
Eric Leblond 4495efcb62 Add macro for direct access 
In some case, this is needed to have a direct access to the pkt
field. This patch adds macro for this usage.
 15 years ago
Eric Leblond 9beebf621a Add support for 'nfq_set_mark' keyword 
This patch introduces 'nfq_set_mark' which is new rules option. If a packet
matches a rule using nfq_set_mark in NFQ mode, it is marked with the mark/mask
specified in the option during the verdict.
It is thus possible to trigger different behaviour on the packet inside
Linux/Netfilter.
 15 years ago
Pablo Rincon ce3b76a102 Fix compilation on Mac OS X (it was missing IPPROTO_SCTP definition) 15 years ago
Eric Leblond 482991ad6d decode: add support for SCTP protocol 
This patch adds a new counter for SCTP and defines some
macros needed for SCTP support.
 15 years ago
Eric Leblond 8be92fdd99 SCTP support: add parsing of sctp 
This patch adds support of SCTP in all part of the code in charge
of decoding packets.
 15 years ago
Victor Julien 477bc1d050 Set DROP flag on a packet in addition to the REJECT flags. This makes sure we not only send a reject, but also drop the offending packet. Closes #248. 15 years ago
Victor Julien addab7b5ee Don't test the several packet detection checks against pseudo packets as the matches would not be meaningful anyway. Prevents a segv in the csum detection. 15 years ago
Eric Leblond d0faa6c96e Fix some spacing. 
This trivial patch fixes some indentation problems.

Signed-off-by: Eric Leblond <eric@regit.org>
 15 years ago
Victor Julien 25f5589078 First round of adding 'stream events'. Basic stream tracking events added. 15 years ago
Victor Julien 2849d2b1d3 Initial code for stream 'inline' mode: packets that are (partly) overlapping with already accepted packets (meaning in the streams seg list) are rewritten to make sure they contain the exact same data. 15 years ago
Victor Julien f606621e8c Fix the pseudo packet having the wrong proto set, causing massive fp's. Flag packets to be part of the established phase of a tcp session, so we won't prematurely inspect the app layer state. 15 years ago
Victor Julien 61a9936d55 Inspect a pseudo packet upon receiving a RST so that we are sure both sides of the TCP session are inspected. 15 years ago
Eric Leblond e802e1ed16 Modify Packet structure and prepare accessor. 
This patch modifies decode.c and decode.h to avoid the usage
by default of a bigger than 65535 bytes array in Packet structure.
The idea is that the packet are mainly under 1514 bytes size and
a bigger size must be supported but should not be the default.

If the packet length is bigger than DFLT_PACKET_SIZE then the
data are stored in a dynamically allocated part of the memory.

To ease the modification of the rest of the code, functions to
access and set the payload/length in a Packet have been introduced.

The default packet size can be set at runtime via the default-packet-size
configuration variable.
 15 years ago
Victor Julien 1112e103a8 Disable DBG_PERF by default except for when DEBUG is enabled. 15 years ago
Anoop Saldanha 88d94b136d Support for reference.config file 15 years ago
Victor Julien fc248ca7a1 Many small performance updates. 15 years ago
Victor Julien 57b098e98c Add padding to commonly used data structures. 15 years ago
Pablo Rincon 5c43db85ce Drop streams on inline mode when a drop rule match from a reassembled stream and/or app layer inspection 15 years ago
Pablo Rincon 70bda6506d Fix for bug 180 (check proto specified at the IP hdr) 15 years ago
Victor Julien 1fb11e939a Improve configure messages. Make sure CUDA doesn't try to process packets that are too big. 15 years ago
Victor Julien e14331cbb2 Fix PACKET_RECYCLE not cleaning all of the packet. 15 years ago
Victor Julien 3c1ae607cf Fix cuda compilation. 15 years ago
Anoop Saldanha 33f4beb0bc batching of packets support for cuda b2g mpm. Supported for both 32 and 64 bit platforms 15 years ago
Victor Julien 017b95f9ef More thoroughly cleanup a Packet when we recycle it. Fixes a corner case where we'd have a invalid tcp packet but p->proto would still say IPPROTO_TCP because of a previous run. Fixes bug #187. 15 years ago
Victor Julien 580b09c2b8 Make sure we inspect all outstanding reassembled stream chunks (smsg) if the stream is shutting down. Make sure to do inspect signatures that use dsize against the tcp packet payload, even if that payload was already added to the stream. Likewise, the dsize signatures are not inspected against the reassembled stream. 15 years ago
Victor Julien a3ff0e7210 Don't scan TCP packet payload if it was added to the stream. Inspect the tcp stream with the correct packet. Should fix #184 and #185. 15 years ago
Pablo Rincon eed0ef6e69 Adding tag keyword support 15 years ago
Victor Julien 6519a86ec7 Move packet pool to ringbuffer, update packet pool api and ringbuffer api. Remove memset usage from PACKET_RECYCLE, add proper cleanup macros. 15 years ago
Victor Julien 37442a8a84 Prefilter signatures before fully scanning them. 15 years ago
Pablo Rincon 8cc525c939 UDP support at AppLayer message handling 15 years ago
Victor Julien fdd0f3939e Reduce size of event bit array in the packet structure. 15 years ago
Anoop Saldanha f4120ff5d5 wrap multi line macros in do while 15 years ago
William Metcalf 2eef905c07 GPL and Copyright header updates. 15 years ago
Victor Julien b8641f300d Rename asn1 files, fix an invalid free, fix improper init of vars in one unittest. 15 years ago
Pablo Rincon 3fa3229e01 ASN1 decoder and keyword implementation 15 years ago
Victor Julien bb685751d9 Fix NFQ receive/verdict race condition in cases where the packetpool is empty. 15 years ago
Victor Julien e741bd0202 Cleanup packet recycling code. Fix issues in the packet tunnel/pseudo code. 15 years ago
Victor Julien 19584d0416 Fix tunneled and defrag reassembled packets with the new pending limits. 15 years ago
Victor Julien 46831e0f8f Fix signature grouping bug for protocols without ports. Add debugging code. 15 years ago
Victor Julien 7a427ec7f4 Switch to pattern id based results checking in the mpm. Move app layer proto detection towards a more signature based approach. 15 years ago
Victor Julien a372c1d14e Fix/workaround a strange detection issue. 15 years ago
Pablo Rincon 1238668961 Adding actions order and suport for rule action "pass" 15 years ago
Victor Julien b90ebc1ce5 Add a packet count var for pcap file mode to the Packet structure to ease debugging. 15 years ago
William Metcalf ce01927515 Import of GPLv2 Header 050410 15 years ago
Victor Julien be5b547803 Convert DecodeSetNoPayloadInspectionFlag and DecodeSetNoPacketInspectionFlag to macro's. 15 years ago
Victor Julien fe7ece997a Different approach to the reference keyword. Lots of cleanups, bug fixes in reference keyword code and tests. 16 years ago
Breno Silva 89baf93a40 Reference Support 16 years ago
Victor Julien dd846c9b0e Remove all search code from the pattern matchers, cleanup mpm api, remove unused http code, more cleanups. 16 years ago
Anoop Saldanha 8cf60d6645 Changed the way cuda dispatcher passes back results. Now each detection thread has it's own queue to which the dispatcher can pump packets back to the detect thread. Also, with cuda enabled and a non-cuda mpm being used, we won't create a dispatcher and instead call the b2g scan/search funtions directly instead of using the dispatcher. 16 years ago
Anoop Saldanha c26e92733d handle the cuda cleanup at shutdown. should get rid of any errors from the call to SigGroupCleanup 16 years ago
Anoop Saldanha 41e6735b92 mpm b2g cuda support added 16 years ago
Breno Silva b02bb6b6b4 VLAN Support 16 years ago
Jason Ish e87d4f8a28 Split the defrag counters into ipv4 and ipv6. 16 years ago
Jason Ish 6b562f7aa6 Issue 82 - fragment counters. - number of fragments - number reassembled - number of timeouts 16 years ago
Pierre Chifflier 4515ae13e4 Add Prelude output plugin 
Add support for reporting alerts to the Prelude SIEM system, using
libprelude to send IDMEF (RFC4765) messages.

Each message contains the alert description and reference (using
the SID/GID), and a normalized description (assessment, impact,
sources etc.)

libprelude handles the connection with the manager (collecting component),
spooling and sending the event asynchronously. It also offers transport
security (using TLS and trusted certificates) and reliability (events
are retransmitted if not sent successfully).

This modules requires a Prelude profile to work (see man prelude-admin
and the Prelude Handbook for help).

Signed-off-by: Pierre Chifflier <chifflier@edenwall.com>
 16 years ago
Pablo Rincon 51dc773eec Changing the veredict actions to flags to allow simultaneous veredict 16 years ago
Jason Ish 7d920a1254 Fix issue 65. 
- Update unit test to trigger the failure found in the issue 65 pcap.
- Increase pkt buffer to account for the IPv6 header, as a maximum
  size IPv6 datagram is 40 + 0xffff.
- Account for IPv4 header when checking where end of fragment lies.
- Second sanity check during re-assembly to check for writing past
  the end of the pkt buffer.
 16 years ago
Jason Ish 5076452707 Potential fix for issue 60. 
- Increase the packet buffer so it can hold the link header when we
  have maximum size IP datagrams.
- Fix ip header length and pkt length calculation for re-assembled
  packets.
 16 years ago
Eric Leblond db2d483d11 convert action_type to enum 
This patch converts packet action type to an enum. This will
provide some facilities and ease bad value detection by gcc.
 16 years ago
William Metcalf 8a64321340 raw pcap support additionl ipv4/6 validation 16 years ago
Victor Julien 9b90c553b5 Clean ip fields from packet as well when the packet is reused. Prevents issues with malformed packets that are rejected by the decoders before ipaddresses are set. 16 years ago
Victor Julien 9ececacda3 Fix packet timestamp handling for encapsulated packets. 16 years ago
Anoop Saldanha bc4df59414 Support for Classtype keyword and Classification Config file 16 years ago
Victor Julien 10cc9d5b6a Add icmp flow handling. 16 years ago
Victor Julien a8116f65c8 Fix packet flags field not being cleared properly when the packet is being reused. Add some debug statements and cleanup some. 16 years ago
Victor Julien 4824868766 Application layer detection improvements 
- improve locking of application layer handling, making sure that the flow cannot be freed/cleared when the detection engine is still working with it.
- add a check to the app layer detection to make sure that a match function will only inspect an app layer state if it's of the right type.
 16 years ago
Victor Julien 493715c0d2 Implement alert sid storage in the flow so we can check previous alerts in the flow. 16 years ago
Gerardo Iglesias 991d421394 Changed printf's to logging API functions 16 years ago
Pablo Rincon e26833be3f Changing mutex/spinlocks/conditions naming types 16 years ago
Pablo Rincon 769022f4be Adding support for Mac OS X, FreeBSD, centrailizing mutex/spins/conditions in a macro API, and some unittests 16 years ago
Anoop Saldanha 8beef4a9fc stats upgrade. Added interval counters to the decoder module 16 years ago
Pablo Rincon 292a7e47ef ICMPv6 Decoder and unittests 16 years ago
Breno Silva 15a8f34d36 Gid Keyword 
Signed-off-by: Brian Rectanus <brectanu@gmail.com>
 16 years ago
Gurvinder Singh 71da019734 some minor changes 16 years ago
Gurvinder Singh bbb385422d function to set packet flags 16 years ago
Gurvinder Singh cc0b4f7181 initial version to support detection byepass 16 years ago
Victor Julien db9e693054 Small fixes to pfring patch. 16 years ago
Victor Julien a4fe971897 Fix datalink retrieval for pcap file mode and nfq mode for use in unified2. 16 years ago
Victor Julien 0d0ffb9963 Reorganize header inclusions. 16 years ago
Jamie a297225157 victor must be getting sick of PPPoE and ICMP 16 years ago
Victor Julien b6deadd2b4 Fixed a few missing places for tv->flags access. Changed mutex init for packets slightly. 16 years ago
William Metcalf 6095b8f2a1 fix for older libc's missing def for IPPROTO_DCCP 16 years ago
Anoop Saldanha 22c0ec2bc5 Added support for the csum-<protocol> rules keyword to the detection engine. Keywords added are ipv4-csum, tcpv4-csum, tcpv6-csum, udpv4-csum, udpv6-csum, icmpv4-csum and icmpv6-csum 16 years ago
Jamie 9adfe54620 more unit tests for pppoe - part I 16 years ago
Victor Julien e7f8a02484 Improve GRE counting. Actually use the GRE decoder. Register the GRE counter. 16 years ago
Breno Silva 9528e02e46 GRE support 16 years ago
Victor Julien 57f71f7e4b Pass the DecodeThreadVars to all Decoder functions properly. Improve the error handling. 16 years ago
Anoop Saldanha 244f5d547a new registration functions for the stats api, with local thread storage for counter ids 16 years ago
Brian Rectanus fa5939ca91 64 bit cleanup part2 16 years ago
Victor Julien 2e4cc2ad3d Convert tabs to spaces in PPPoE code. 16 years ago
Jamie 8817364ef6 initial PPPoE decoder commit 16 years ago
William Metcalf a3510f2025 Made NFQ optional via --enable-nfqueue, --enable-logsigs will now load local.rules in the path other fixes 16 years ago
Victor Julien 689bbfdc45 Rename all structure definitions in the "typedef struct _SomeStruct" format to "typedef struct SomeStruct_" to make the Doxygen output more useful. 
Remove the Trie multi pattern matcher code. It wasn't used anymore.
 16 years ago
William Metcalf 2ab8291ea8 Multi-Threading capable libpcap 16 years ago
Breno Silva dec11038c6 PPP Support 16 years ago
Victor Julien eb0a5d8762 Add Address copy macro. 16 years ago
Victor Julien 9c7f5afa79 Large update: pcap support, threading fixes, initial stream tracking, time handling, pool support, runmodes, decoders added, autojunk update. 16 years ago
Victor Julien a0b390c541 Fix pktvar and http uri memory leaks. 16 years ago
Victor Julien 657be002d1 Big detection engine update: scan improvements, b2g/b3g updates, bloom fixes, iponly detection implementation, dsize/flow grouping. 16 years ago
Victor Julien c4f2fe4bd7 Implement per packet variables and switch the http stuff to it. 16 years ago
Victor Julien edf8650a7e Tunnel update. 16 years ago
Victor Julien 8cda70668c Tunnel fixes. 16 years ago
Victor Julien 28d9415e37 New approach to tunnel decoding. 16 years ago
William Metcalf 7006085195 udp decoding added icmp unreachables added to reject 16 years ago
Victor Julien ebf41c3b1e Remove obsolete decode-http files. 16 years ago
William Metcalf 0ffa1c2465 updates for configure.in, added reject code, some decode stuff for tcp 16 years ago
Victor Julien 3df4b7da2b Set p->proto and add TCP, UDP, etc macros. 16 years ago
William Metcalf 559edc01e3 NFQUE drop support added with ident of 4 :-( 16 years ago
Victor Julien bab4b62376 Initial add of the files. 16 years ago