Victor Julien
892a8a4985
Make stream inline use the chunk size settings.
15 years ago
Victor Julien
4f5aad1476
Enforce configurable minimum chunk size in raw stream reassembly. Minor stream cleanups, unittest updates.
15 years ago
Victor Julien
936b34ddf6
Remove minimum init chunk length code, set a default limit of 2560 to the minimum chunk size, allow toclient raw reassembly to start even if toserver hasn't started yet.
15 years ago
Victor Julien
8faacb727d
Account for seg list not always being empty when stream closes.
15 years ago
Victor Julien
ecfa2d0176
Only remove segments from segment list if they are completely before ra_base_seq.
15 years ago
Victor Julien
5bdf16380d
Make sure we actually remove no longer required segments.
15 years ago
Victor Julien
7f45a4fd58
Fix missing segment flag, fix 2 unittests broken after previous stream changes.
15 years ago
Victor Julien
4a7f6079d5
Change segment removal in stream engine to not discard segments right away. Now they are only removed if they are fully before ra_base_seq.
15 years ago
Victor Julien
b233105cc2
Fix a issue in stream reassembly causing the segment list getting into a inconsistent state.
15 years ago
Victor Julien
a8db8b334b
Remove debug stream testing code from non-debug builds.
15 years ago
Victor Julien
48c7f18453
Fix bug in the segment insert code causing an inconsistent segment list in some overlap conditions.
15 years ago
Victor Julien
05539d7357
Fix a reassembly overlap issue. Fix a inline reassembly gap handling issue.
15 years ago
Victor Julien
e92ab40d39
Fix compilation for non-DEBUG case.
15 years ago
Victor Julien
2db06cc79e
Improve Inline reassembly wrt to GAP handling. Add more tests.
15 years ago
Victor Julien
4c82c0e750
Improve RawInline reassembly: remove unnecessary segments from the stream in an earlier stage. Test this properly.
15 years ago
Victor Julien
3a774165fa
Initial version of a inline raw reassembly function that reassembles in a sliding window. Introduce new unittest helpers for stream reassembly.
15 years ago
Victor Julien
abdffadc1c
Add a new app layer reassembly function that is for inline use, and use it when the stream engine is in inline mode.
15 years ago
Victor Julien
bff70eed6d
Update to depth code. Get segment from the correct pool when a payload is truncated.
15 years ago
Victor Julien
66c40f782c
Have reassembly errors also set a stream event.
15 years ago
Victor Julien
0f072648e6
Another iteration of the reassembly depth enforcement, now considering retransmissions.
15 years ago
Victor Julien
16cd31a408
Remove unused pseudo packet reassembly code.
15 years ago
Victor Julien
bf88a6de09
Add depth comment.
15 years ago
Victor Julien
a26768ce7a
Change the way the reassembly depth is enforced. Ignore retransmissions, get rid of per session counter.
15 years ago
Victor Julien
aa04d9eefb
Improve stream gap handling. Instead of giving up as soon as we see a gap we now wait much longer before we decide it's a gap.
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
8b5f553a35
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
55a863359c
support for pseudo packet creation from reassembled stream segments
15 years ago
Victor Julien
44e678b86b
Comment out disabled unittests.
15 years ago
Victor Julien
1d971b53a6
Update all unittests
15 years ago
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