Thanks for the feedback. I've applied the iptables -L with a callback
handler. The callback handler then decides whether or not to create the
base chains.
I changed the commit message from
"nwfilter: Avoid firewall hole during VM startup by checking rule presence" to
"nwfilter: Check before removing and reinserting iptable base chains".
I also edited nwfilterxml2firewalltest, so it pretends that currently there are
no chains and I changed the expected order of the commonRules.
Dion Bosschieter (1):
nwfilter: Check before removing and reinserting iptable base chains
src/nwfilter/nwfilter_ebiptables_driver.c | 203 +++++++++++++---------
tests/nwfilterxml2firewalltest.c | 58 +++++--
2 files changed, 163 insertions(+), 98 deletions(-)
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2.43.0