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36 Commits (22b1f5b22b10cbc7272931d2ecfb874045cec13a)

Author SHA1 Message Date
Eric Leblond 5a63662766 Flow: use condition system instead of short sleep 
Short sleep can lead to some really annoying performance issue in
some environnement like virtual systems. This technic was used in
the flow manager. This patch uses an alternate approach based on
a timed condition which is triggered each time a new flow has to
be created. This avoid to run out of flow. A counter is also done
to be able not to run the cleaning code at each new flow.
 14 years ago
Victor Julien 262a7300d7 flow: shrink Flow datatype 
Introduce a separate FlowAddress structure for holding the ipv4 or ipv6 address
that doesn't have the family in it like the Address structure. Instead, the
family is stored in the flow as a flag: FLOW_IPV4 and FLOW_IPV6.

Add macro's to check the family, copy the address, etc.

Update many unittests to reflect these changes. Introduce unittest helper
functions for creating and initializing a flow and freeing it again.

On 64 bit this shrinks the flow with 8 bytes.
 14 years ago
Victor Julien 06904c9024 App Layer cleanup 
Removal of per flow 'aldata' array. It contained a ptr for each ALPROTO. Instead now we have 2 ptrs in the flow: alparser and alstate.
Various cleanups and dead code removal from the app layer API.
Should safe 100+ bytes memory per flow on 64 bit.
Updated lots of unittests to reflect these changes.
 14 years ago
Victor Julien 9baa16af63 Convert flow memcap to u64. Bug #332. 14 years ago
Anoop Saldanha 49e2b580cb Removed FLOW_AL_PROTO_UNKNOWN. We don't need this flag 14 years ago
Eric Leblond 674b0bfae7 flow: Add basic SCTP support 
This patch adds a basic flow support to SCTP. SCTP specificities
like the verification tag are not taken into account.
 15 years ago
Pablo Rincon 8cc525c939 UDP support at AppLayer message handling 15 years ago
Victor Julien c26434fef1 Move flow use cnt to atomic and outside of the flow mutex protection. 15 years ago
Victor Julien 87345e5c60 Switch flow memuse counter to the atomic api. 15 years ago
Victor Julien 3484e2abde Fix flow engine memory handling. 15 years ago
Pablo Rincon b491ef2be0 Removing FlowAllocDirect since it's not needed anymore 15 years ago
Victor Julien 32e3fea9e6 Exclude parts of a flow that are not changing after init from the flow mutex. Cleanup flow-hash function. 15 years ago
Pablo Rincon 29a6fc2f03 Adding some flow improvements and recovery on emergency mode 15 years ago
William Metcalf 2eef905c07 GPL and Copyright header updates. 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
William Metcalf ce01927515 Import of GPLv2 Header 050410 15 years ago
Victor Julien 38f7479af2 Make sure we set the address family (AF_INET & AF_INET6) in the flow's address structures. Needed by HTP personalities code. 15 years ago
Victor Julien 5e3f072fa6 Clean up flow mutexes after use. 16 years ago
Pablo Rincon 25a3a5c6d8 Adding mem wrapper to debug runtime alloc()/free() functions. Fixing some memory leaks. 16 years ago
Victor Julien 6b36e23e45 Fix not decreasing the flow use_cnt reference counter in some cases from the app layer detection code. This caused some streams to never fully time out and thus clutter up the flow table and session pool. 16 years ago
Victor Julien 10cc9d5b6a Add icmp flow handling. 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 ecf86f9c23 Rename to Suricata. 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
Victor Julien b102ea2123 Big update: 
- Implement "closing" state in flow.
- Add protocol specific timeouts.
- Lots of stream tracking updates, fixing a lot of out of window issues.
- Stream reassembly fixes.
- Implement a new IDS runmode with 4 stream and detect threads.
- Added a BUG_ON macro that aborts the engine if the expression is true.
- Better balance the flow queue handler for traffic that doesn't have flow (like icmp currently).
- Simplify application level protocol in the Tcp Session.
- Add some debugging memory counters.
 16 years ago
Victor Julien b4f0e82463 Small flow updates. 16 years ago
Gurvinder Singh e3b76dcaad efficient protocol specific timeouts 16 years ago
Gurvinder Singh b46d9dc2b4 part2 and part3.1 of timout task 16 years ago
Gurvinder Singh 59e2232211 setting timeout on first packet in the flow 16 years ago
Gurvinder Singh a31a261737 Another and right way i guess for timeouts 16 years ago
Gurvinder Singh 0e64fa78b4 Protocol Specific Timeouts 16 years ago
Brian Rectanus fa5939ca91 64 bit cleanup part2 16 years ago
Victor Julien ff4b5a5db7 Add support for flowbits. 16 years ago
Victor Julien efb10fc0d6 big update 16 years ago
Victor Julien bab4b62376 Initial add of the files. 16 years ago