Mirror/zeek
1
0
Fork 0
mirror of https://github.com/zeek/zeek.git synced 2025-10-06 00:28:21 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Do not lookup ignore_checksums_nets for every packet

Browse source 
This could lead to a noticeable (single-percent) performance
improvement.

Most of the functionality for this is in the packet analyzers that now
cache ignore_chesksums_nets.

Based on a patch by Arne Welzel (Corelight).
This commit is contained in:
Johanna Amann 2021-08-06 10:32:53 +01:00
parent d24cecf268
commit 8192ad581d
13 changed files with 101 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/packet_analysis/protocol/udp/UDP.cc
View file

@ -108,7 +108,7 @@ void UDPAnalyzer::DeliverPacket(Connection* c, double t, bool is_orig, int remai
auto validate_checksum =
! run_state::current_pkt->l3_checksummed &&
! zeek::detail::ignore_checksums &&
! zeek::id::find_val<TableVal>("ignore_checksums_nets")->Contains(ip->IPHeaderSrcAddr()) &&
! GetIgnoreChecksumsNets()->Contains(ip->IPHeaderSrcAddr()) &&
remaining >=len;
constexpr auto vxlan_len = 8;