Commit Graph

135 Commits (25f5589078bb60d4d06331446834937da0cffea2)

Author SHA1 Message Date
Victor Julien 25f5589078 First round of adding 'stream events'. Basic stream tracking events added. 16 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. 16 years ago
Victor Julien 3857154f4b 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. 16 years ago
Gurvinder Singh 55a863359c support for pseudo packet creation from reassembled stream segments 16 years ago
Gurvinder Singh 2beb7af7f8 support for validating the ACK before updating the last_ack field and also update next_seq if we missed the last packet 16 years ago
Victor Julien c955254b4e Adapt stream code to packet memory allocation changes. 16 years ago
Victor Julien fadd6d6361 Add pseudo packet counter. 16 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. 16 years ago
Victor Julien 6482c34909 Increment flow use cnt for pseudo packets as the flow is not supposed to disappear while dealing with those packets. 16 years ago
Victor Julien 2072ad80af Never create a pseudo packet based on a pseudo packet. 16 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. 16 years ago
Gurvinder Singh 00f21f34e8 support for pseudo packet creation from reassembled stream segments 16 years ago
Victor Julien 8fa5a2c025 Split applayer and raw stream reassembly
Split stream reassembly in 2 parts: a part that sends ack'd data to the app
layer parsers as soon as it's available, and another part that queues up
data into larger chunks for raw inspection.
16 years ago
Victor Julien b5a5ef14b9 Make sure we reuse a TCP session if we receive a valid 3WHS on a closed TCP session, can happen if a new session has the same tuple. 16 years ago
Eric Leblond 1db4aadd16 Supress usage of Packet declaration in tests.
For convenience, a massive usage of 'Packet p;' declaration has
been done in the tests function. Although this was completely
legal, this is not possible anymore because of the new Packet
allocation structure. This massive patch modifies all suricata
files to use a SCMalloc allocated pointer to Packet instead.

This patch has been done using coccinelle (http://coccinelle.lip6.fr)
which is a semantic patching tool. This ensures that things like call
to SCFree() should have not been forget because the semantic patch
explicitly forces the call to SCFree(p) before each return. With this
patch all unittests are running fine with a small and a big default
packet size.
16 years ago
Eric Leblond dd038c1906 Modify files to avoid direct pckt payload access
This patch implements the needed modification of payload access
in a Packet structure to support the abstraction introduced by
the extended data system.
16 years ago
Eric Leblond 8471626916 Fix error message and adds information to config
This patch fixes a typo in an error message and add some
information to the checksum verification option.
16 years ago
Victor Julien c64b9362cf Remove unused stream flag. 16 years ago
Anoop Saldanha e47a9b59e9 accept tcp packets with syn+urg+push 16 years ago
Gurvinder Singh 892dea31e4 added the counter for tcp.segment_memcap_drop to show the dropped segments count due to memory limit 16 years ago
Victor Julien 0eb0d48f35 Disable broken unittests and fix one. 16 years ago
Victor Julien f1e6e80a1e Properly set tmp_ra_base_seq in streams. By Gurvinder. 16 years ago
Gurvinder Singh 6a5bc52461 support for several tcp evasion attacks. Thanks to Judy Novak and G2 Inc for reporting them 16 years ago
Pablo Rincon 5c43db85ce Drop streams on inline mode when a drop rule match from a reassembled stream and/or app layer inspection 16 years ago
Victor Julien c25921edf0 Add config output for new stream settings. 16 years ago
Gurvinder Singh 7577823cdf support for stopping the evasion, which is caused by the use of TCP RST packets for linux based systems 16 years ago
Gurvinder Singh f0928a4555 support for enforcing the depth until when the reassembly will be performed 16 years ago
Gurvinder Singh 8b0ca4f628 support for seperate memcaps for reassembly and stream engine 16 years ago
Victor Julien 18c923318a Fix bug where valid FIN packets would be rejected. 16 years ago
Victor Julien 05d382f533 Fix broken stream engine config initialization: due wrong casts settings could be overwritten in memory. 16 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. 16 years ago
Victor Julien b8fec77f37 Fix tcp connections that are reset (RST packet) not always inspecting the reassembled stream. Update transaction id code to make sure both directions of a transaction are inspected before incrementing the inspect_id. 16 years ago
Anoop Saldanha 015385c6bd changes to the dce parser stub data processed var. changed to stub data fresh var to indicate if the stub is fresh or not 16 years ago
Anoop Saldanha 45ea0d914e dce stub content keywords support using dcepayload.c support for all dce related content keywords 16 years ago
Pablo Rincon 8cc525c939 UDP support at AppLayer message handling 16 years ago
Victor Julien a0c1209a44 Inspect the reassembled stream together with the packet payload in the same direction. 16 years ago
Victor Julien 9f95ab7441 Make sure a stream that has a failing app layer inspection module no longer stops reassembly, but only app layer inspection. This way we can continue to inspect the reassembled stream. 16 years ago
Victor Julien 4e7df60b2f Make pcap file mode read multiple packets per 'read'. Update threading model to deal with this. 16 years ago
William Metcalf 2eef905c07 GPL and Copyright header updates. 16 years ago
Gurvinder Singh 5fe1dc1d24 support for sslv2/sslv3 their unit tests and better stream no reassembly flag handling 16 years ago
Gerardo Iglesias Galvan 9f4fae5b1a Fix inconsistent use of dynamic memory allocation 16 years ago
William Metcalf ce01927515 Import of GPLv2 Header 050410 16 years ago
Victor Julien 070ed778b8 Libcap-ng support by Gurvinder Singh and myself. Basic support for per thread caps is added, but not activated as it doesn't seem to work yet. Work around for incompatibility between libnet 1.1 and libcap-ng added. 17 years ago
Gurvinder Singh e0b4838471 fix bug 133, error caused by seq mismatch in fin_wait_2 state, whis was dicarding the packet which should be accepted 17 years ago
Victor Julien 0eabde4a9b Gnu99 inline fixes for stream engine. 17 years ago
Victor Julien eeb98c6900 Move SCSetThreadName to proper functions. 17 years ago
Gerardo Iglesias Galvan 9f35a24a1f Set threads name. Fix bug #83 17 years ago
Victor Julien ad02732907 Properly cleanup stream engine spinlocks and mutexes at shutdown. Fixes drd errors in unittests. 17 years ago
Pablo Rincon 2ce728d019 Adding support for ecn flags after the handshake 17 years ago
Victor Julien 2b3479577b Fix ecn/cwr unittests 17 years ago