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567ea4774e13 ("netlink_delinearize: incorrect meta protocol dependency kill")
does not document two cases that are handled in this patch:
- 'meta protocol ip' is removed if used in the ip family.
- 'meta protocol ip6' is removed if used in the ip6 family.
This patch removes this redundancy earlier, from the evaluation step
before netlink bytecode generation.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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meta protocol is meaningful in bridge, netdev and inet families, do
not remove this.
Fixes: 056aaa3e6dc6 ("netlink_delinearize: Refactor meta_may_dependency_kill()")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Adds "meta sdif" and "meta sdifname".
Both only work in input/forward hook of ipv4/ipv6/inet family.
Cc: Martin Willi <martin@strongswan.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Jozsef points out that
meta l4proto icmp icmp type destination-unreachable
is hard to read. So, lets just add icmp/icmpv6 to
ip/ip6 protocol base so users can just go with
icmp type destination-unreachable
and let nft fill in needed dependency.
After this patch, the recent patch to not remove the
dependency can be reverted again.
Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
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