Dataset set postmatch 5576 v12 #12057
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Ticket: 7326
Will be useful for dataset, when it needs to find a transaction buffer again.
The set operation of dataset keyword was done even if signature did not fully match, which is not the expected behavior. We want dataset to behave like flowbits for instance. This patch changes the behavior of the dataset keyword to do a match and a post match for the set operation. The postmatch retrieves the data, using the list identifier associated to the buffer for this signature. This avoids to store the buffer(s), when we do not have a dedicated storage (per signature and per tx) that can own and clean arbitrary buffers over multiple packets, in the case the transaction spans over multiple packets with different tx progresses for instance. If detection runs on one packet, the InspectionBuffer are cached and fast to get. The most expensive case if for multi buffers, where we need to run detection again, to see which occurences match all payload keywords and should be added in the dataset. Ticket: OISF#5576
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #12057 +/- ##
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- Coverage 83.42% 83.41% -0.02%
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Files 910 910
Lines 257642 257773 +131
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+ Hits 214949 215013 +64
- Misses 42693 42760 +67
Flags with carried forward coverage won't be shown. Click here to find out more. |
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Information: QA ran without warnings. Pipeline 23203 |
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Rebased in #12126 |
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Link to ticket: https://redmine.openinfosecfoundation.org/issues/
https://redmine.openinfosecfoundation.org/issues/5576
https://redmine.openinfosecfoundation.org/issues/7326
Describe changes:
SV_BRANCH=OISF/suricata-verify#2093
#12053 with compiler warning fixes and clean git history
This shows the POC to have feedback
Feedback is excepted on the design :