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When a TCP flow packet has not led to app-layer updates, it is useless to run DetectRunTx, as there cannot be new matches. This happens for instance, when one side sends in a row multiple packets which are not acked (and thus not parsed in IDS mode). Doing so requires to move up the call to AppLayerParserSetTransactionInspectId so that it is run the same times DetectRunTx is run, and not in the case where the transaction was not updated. Ticket: 6299
Ticket: OISF#6299 Simply because it is faster (just linear). This is for merging match_array into tx_candidates
If flags are zero, there is nothing to store and remember. Stored signatures will be reused on a later packet, and qsorted (which may be expensive), with newer matches candidates. Avoiding to store, leads to avoid the call to qsort.
Especially sets transactions to complete when we get a response without having seen the request, so that the transactions end up getting cleaned (instead of living/leaking in the state). Also try to set the event on the relevant transaction, instead of creating a new transaction just for the purpose of having the event. Ticket: OISF#6299
Fixing single_match and manual_find intertwined with SCLogDebug
So that we can write enip.revision: 0x203 Ticket: 6645
Ticket: 6647 Allows keywords using integers to use strings in signature parsing based on a rust enumeration with a derive.
Ticket: 6648 Like &0x40=0x40 to test for a specific bit set
Ticket: 6628 Document the generic detection capabilities for integer keywords. and make every integer keyword pointing to this section.
Our code handles Uint ranges as exclusive, but for bsize, our
documentation stated that they're inclusive.
Cf. from uint.rs:
DetectUintMode::DetectUintModeRange => {
if val > x.arg1 && val < x.arg2 {
return true;
}
}
Task OISF#6708
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Information: QA ran without warnings. Pipeline 17855 |
This was referenced Jan 30, 2024
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