Messages in this thread | | | Date | Thu, 18 Feb 2021 09:22:07 +0100 | From | Florian Westphal <> | Subject | Re: [PATCH ghak124 v3] audit: log nftables configuration change events |
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Richard Guy Briggs <rgb@redhat.com> wrote: > On 2021-02-11 23:09, Florian Westphal wrote: > > So, if just a summary is needed a single audit_log_nfcfg() > > after 'step 3' and outside of the list_for_each_entry_safe() is all > > that is needed. > > Ok, so it should not matter if it is before or after that > list_for_each_entry_safe(), which could be used to collect that summary.
Right, it won't matter.
> > If a summary is wanted as well one could fe. count the number of > > transaction types in the batch, e.g. table adds, chain adds, rule > > adds etc. and then log a summary count instead. > > The current fields are "table", "family", "entries", "op". > > Could one batch change more than one table? (I think it could?)
Yes.
> It appears it can change more than one family. > "family" is currently a single integer, so that might need to be changed > to a list, or something to indicate multi-family.
Yes, it can also affect different families.
> Listing all the ops seems a bit onerous. Is there a hierarchy to the > ops and if so, are they in that order in a batch or in nf_tables_commit()?
No. There is a hierarchy, e.g. you can't add a chain without first adding a table, BUT in case the table was already created by an earlier transaction it can also be stand-alone.
> It seems I'd need to filter out the NFT_MSG_GET_* ops.
No need, the GET ops do not cause changes and will not trigger a generation id change.
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