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Commit Graph

109 Commits (fadd6d63619d1512a69bf0720aeb530235a99a0f)

Author SHA1 Message Date
Victor Julien b0901ab30d Fix compilation with --enable-debug 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
Gurvinder Singh 00f21f34e8 support for pseudo packet creation from reassembled stream segments 15 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.
 15 years ago
Victor Julien dda6d3e07b Add error counters. 15 years ago
Victor Julien 4ae7144876 Fix 2 cases where overlapping data in the stream engine wouldn't be properly handled potentially causing the wrong data being used in stream reassembly. 15 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.
 15 years ago
Gurvinder Singh 892dea31e4 added the counter for tcp.segment_memcap_drop to show the dropped segments count due to memory limit 15 years ago
Gurvinder Singh 6a5bc52461 support for several tcp evasion attacks. Thanks to Judy Novak and G2 Inc for reporting them 15 years ago
Victor Julien 1d73e1fb7e Small update to the ssh module: fix a valgrind warning and a couple of compiler warnings. Do a few small style updates. 15 years ago
Pablo Rincon 9d7baa7a9f Adding ssh app layer module with two new keywords: ssh.protoversion and ssh.softwareversion 15 years ago
Gurvinder Singh 0dab0e3935 fix the reassembly depth test (bug 216) 15 years ago
Victor Julien a9e78871fe Really fix bug 205 this time, repair a broken unittest. 15 years ago
Victor Julien 196e572daa Make sure holding up to_client reassembly stops after the proto is detected or we're sure we'll never detect it. Fixes issues related to bug 205. 15 years ago
Pablo Rincon 4c94a27b71 Fix bug 205 (at stream-tcp-reassemble) 15 years ago
Gurvinder Singh f0928a4555 support for enforcing the depth until when the reassembly will be performed 15 years ago
Victor Julien 66dee577d7 Force stream reassembly on streams where we didn't yet detect the protocol if the stream is closing. 15 years ago
Gurvinder Singh 8b0ca4f628 support for seperate memcaps for reassembly and stream engine 15 years ago
Victor Julien 92858a211d Fix STREAM_EOF flag overwriting STREAM_START flag on short streams. This made us miss short HTTP sessions. 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 8cc525c939 UDP support at AppLayer message handling 15 years ago
William Metcalf cc76aa4bc6 properly init flows inside of unit-tests caused lock-up when falling back to using mutex locks 15 years ago
Victor Julien 9a08d6c11c Fixes to stream pattern matching. 15 years ago
Victor Julien 81f2499834 Store stream msgs processed by the app layer in the tcp session so they can be inspected by the detection module as well. The detection module returns them to the pool. 15 years ago
Victor Julien c26434fef1 Move flow use cnt to atomic and outside of the flow mutex protection. 15 years ago
William Metcalf 2eef905c07 GPL and Copyright header updates. 15 years ago
Gurvinder Singh 5fe1dc1d24 support for sslv2/sslv3 their unit tests and better stream no reassembly flag handling 15 years ago
Victor Julien 70b32f7380 First stab at creating a stateful detection engine. 
Stateful detection for app layer detection keywords, except uricontent. Stores it's partial results in the flow structure. Other modifications:

- Generalize transaction tracking, logging and inspection.
- Adapt http and dcerpc to use the new transaction handling.
- Stream engine now always notifies app layer of a stream eof.

This commit fixes bug #124.
 15 years ago
Gerardo Iglesias Galvan 9f4fae5b1a Fix inconsistent use of dynamic memory allocation 15 years ago
Victor Julien ecf5a8fbcc Fix broken stream unittest. 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
William Metcalf ce01927515 Import of GPLv2 Header 050410 15 years ago
Victor Julien b6a45fd1a4 Hack around cornercase in debug code in stream engine. Works around #140. 15 years ago
Victor Julien e0c2c86342 Make HTTP proto detection more reliable. Add HEAD keyword. Thanks rmkml for the report/request. 15 years ago
Victor Julien 59c5e819b1 Fix compilation if debugging is disabled. 15 years ago
Victor Julien ad02732907 Properly cleanup stream engine spinlocks and mutexes at shutdown. Fixes drd errors in unittests. 15 years ago
Victor Julien 156b844ccb Fix tcp segment list corruption bug 16 years ago
Pablo Rincon b708d7f65d Adding Uricontent inspection with spm. Modifiers for uricontent are now supported 16 years ago
Gurvinder Singh 8e444f1772 stream and application layer improvements 16 years ago
Victor Julien 3d7b882bde Make sure all smsgs are handled every time, even in case or error. The fuzzer found an issue where unhandled messages remained in the queue leading to threading issues. 16 years ago
Gurvinder Singh 7438f981da stream memory leaks fixed and unit tests added 16 years ago
Pablo Rincon 25a3a5c6d8 Adding mem wrapper to debug runtime alloc()/free() functions. Fixing some memory leaks. 16 years ago
Victor Julien f96511a8b1 Check reassembly limits against correct stream direction. Set proper direction flag in stream msgs. 16 years ago
Gurvinder Singh ed99e73622 bug 78 16 years ago
Victor Julien 53977fded6 Small compilation fixes when debugging is disabled. 16 years ago
Victor Julien 6a53ab9c5a Stream engine memory handling update 
The stream engine memory handling needed updating as it didn't scale. Changes:

- pools can now be initialized to size 0, meaning unlimited
- stream engine uses a memcap setting. Sessions, segments and aldata is part
  of this, app layer state isn't.
- memory is accounted using a global int that is spinlocked.
- a counter for sessions that have not been picked up because of memcap was
  added.
- all reassembly errors are converted to debug msgs.
 16 years ago
Gurvinder Singh d9677c7e2a bug 76 patch 16 years ago
Victor Julien fcb03099a3 Fix reassembly updating the wrong stream on ACK 
The stream reassembly updated the wrong stream on received ACK packets. Instead
of the opposing stream it updated the stream in packet direction. This caused
issues in the app layer handling.

Updated the unittests as well.
 16 years ago
Victor Julien c352bff6fb Remove unused conditional locking code from the app layer parsing code. 16 years ago
Victor Julien 9b4f3f918b Fix broken debug code in stream reassembly 16 years ago