Move ICMP stuff to separate classes allowing better customisation #16
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This is a proposal to finish off #9. The patch moves all ICMP traffic management away from the
globalchain, creating specific input and output rules. RHEL8's defaults are followed.Users can customise the ICMP4/6 types to allow by providing values via Hiera to
nftables::rules::icmp::v4_typesand other similar parameters. One rule per type is added so it should be possible to add rates as part of the type, for instance:ICMP rule handling can completely be disabled by tweaking
nftables::in_icmpandnftables::out_icmp.Tests will be added if the proposed interface goes forward.Closes #9