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Commit Graph

48 Commits (d67289b60e32436a6c351394096120fee0f9839f)

Author SHA1 Message Date
Victor Julien 9f55ca0057 flow: add flow_end_flags field, add logging 
The flow end flags field is filled by the flow manager or the flow
hash (in case of forced timeout of a flow) to record the timeout
conditions in the flow:
- emergency mode
- state
- reason (timed out or forced)

Add logging to the flow logger.
 11 years ago
Victor Julien de034f1867 flow: prepare flow forced reuse logging 
Most flows are marked for clean up by the flow manager, which then
passes them to the recycler. The recycler logs and cleans up. However,
under resource stress conditions, the packet threads can recycle
existing flow directly. So here the recycler has no role to play, as
the flow is immediately used.

For this reason, the packet threads need to be able to invoke the
flow logger directly.

The flow logging thread ctx will stored in the DecodeThreadVars
stucture. Therefore, this patch makes the DecodeThreadVars an argument
to FlowHandlePacket.
 11 years ago
Ken Steele d12834769a Add const for Packet * in flow functions. 
By moving FlowReference() out of FlowGetFlowFromHash() and into the one
function that calls it, all the flow functions take const Packet * instead
of Packet *.
 12 years ago
Ken Steele c1b9f0e1f4 Formatting and comment updates in flow files 
Some reformatting to meet coding standards.

Added a few comments to make it more clear where p->flow gets set.
 12 years ago
Victor Julien 2e82772a0a Coverity 1038098: remove dead code from flow hash 12 years ago
Ken Steele b08ddfa7f1 Support for Tile Gx atomic instructions 
Tilera's GCC supports the GCC __sync_ intrinsics.

Increase the size of some atomic variables for better performance on
Tile.  The Tile-Gx architecture has native support for 32-bit and
64-bit atomic operations, but not 8-bit and 16-bit, which are emulated
using 32-bit atomics, so changing some 16-bit and 8-bit atomic into
ints improves performance.

Increasing the size of the atomic variables modified in this change
does not increase the total size of the structures in which they
reside because of existing padding requirements. The one case that
would increase the size of the structure (Flow_) was confitionalized
to only change the size on Tile.
 12 years ago
Victor Julien 58ed1f2411 flow: take vlan_id's into account in the flow hash 
In VLAN we can have 2 layers of encapsulation. In this patch both
layers are used in the flow hash to distinguish between encapsulated
traffic.
 12 years ago
Victor Julien d1573a366d Fix GetUsed functions for Host, Flow and Defrag. 13 years ago
Victor Julien 966c731e73 flow: fix crash when flow engine under extreme stress, and unable to force free any existing flow 13 years ago
Anoop Saldanha 3d74fa964a Update all flow referencing to use the new FlowReference and FlowDeReference 
macros.
 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.
 14 years ago
Victor Julien c10370907a flow: make flow use lookup3.c hashing algorithm. Improves hash table distribution. 14 years ago
Victor Julien 19a7e7f395 flow: create a flow lock macro API, implement it for mutex and rwlocks. Mutex remains the default. 14 years ago
Victor Julien 4157d9408d Various small flow and host table fixes. 14 years ago
Victor Julien db24258acf Undo changes from 88b8f15663. Atomic stack implementation had a-b-a problem. 14 years ago
Victor Julien 88b8f15663 Add atomic stack implementation. Convert flow spare queue to use this stack. Remove now unused flow-queue code. 14 years ago
Victor Julien 0150e66ede flow engine: improve scalability 
Major redesign of the flow engine. Remove the flow queues that turned
out to be major choke points when using many threads. Flow manager now
walks the hash table directly. Simplify the way we get a new flow in
case of emergency.
 14 years ago
Victor Julien 84c7480c06 flow engine: convert flow hash code FlowRequeue call to FlowEnqueue. 14 years ago
Victor Julien fbbdbb251f flow engine: remove unneeded 'need_srclock' argument for FlowRequeue 14 years ago
Anoop Saldanha 5133098bd6 Accomodate pcap-file mode to signal flow mgr to wakeup when it exceeds a certain time interval. This let's the flow mgr keep in sync with pcap timestamp changes 14 years ago
Anoop Saldanha 9917744707 separate timers for flow mgr thread for normal and emerg mode. Signal flow mgr thread when in emerg mode 14 years ago
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 9baa16af63 Convert flow memcap to u64. Bug #332. 14 years ago
Victor Julien cff0a0bda2 Fix segv conditions caused by broken flow cleanup code. 16 years ago
Pablo Rincon 8cc525c939 UDP support at AppLayer message handling 16 years ago
Victor Julien c26434fef1 Move flow use cnt to atomic and outside of the flow mutex protection. 16 years ago
Victor Julien 87345e5c60 Switch flow memuse counter to the atomic api. 16 years ago
Pablo Rincon b491ef2be0 Removing FlowAllocDirect since it's not needed anymore 16 years ago
Victor Julien 32e3fea9e6 Exclude parts of a flow that are not changing after init from the flow mutex. Cleanup flow-hash function. 16 years ago
Pablo Rincon 29a6fc2f03 Adding some flow improvements and recovery on emergency mode 16 years ago
William Metcalf 2eef905c07 GPL and Copyright header updates. 16 years ago
Victor Julien 53b388b669 Improve flow hash debugging, switch to csv output. 16 years ago
Victor Julien 548a3b2c93 Improve flow hash debugging functions. Make sure ICMP errors don't create flows. Handle ICMP DEST UNREACH errors in the flow they are sending the error about. 16 years ago
Victor Julien 2dc5405d3a Add debug code for tracking flow hash distribution. Only add ICMP DEST_UNREACH packets to the flow engine. 16 years ago
Victor Julien 0ebf7cbc5e Convert flow bucket lock from mutex to spinlock. Locks should be very short, so spinlocks should be faster. 16 years ago
William Metcalf ce01927515 Import of GPLv2 Header 050410 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 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 91bc83e5c6 More logging API usage changes. 16 years ago
Victor Julien 3a28171fbd Another round of logging api usage updates. 16 years ago
Victor Julien 0d0ffb9963 Reorganize header inclusions. 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
Brian Rectanus fa5939ca91 64 bit cleanup part2 16 years ago
Victor Julien 8397413942 Comment updates. 17 years ago
Victor Julien efb10fc0d6 big update 17 years ago
Victor Julien bab4b62376 Initial add of the files. 17 years ago