From: Florian Westphal <fw@strlen.de>
To: Phil Sutter <phil@nwl.cc>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>,
netfilter-devel@vger.kernel.org, Florian Westphal <fw@strlen.de>,
Eric Garver <e@erig.me>
Subject: Re: [nf-next PATCH v3 06/16] netfilter: nf_tables: Tolerate chains with no remaining hooks
Date: Thu, 31 Oct 2024 15:01:04 +0100 [thread overview]
Message-ID: <20241031140104.GA21912@breakpoint.cc> (raw)
In-Reply-To: <20240912122148.12159-7-phil@nwl.cc>
Phil Sutter <phil@nwl.cc> wrote:
> Do not drop a netdev-family chain if the last interface it is registered
> for vanishes. Users dumping and storing the ruleset upon shutdown for
> restore upon next boot may otherwise lose the chain and all contained
> rules. They will still lose the list of devices, a later patch will fix
> that. For now, this aligns the event handler's behaviour with that for
> flowtables.
> The controversal situation at netns exit should be no problem here:
> event handler will unregister the hooks, core nftables cleanup code will
> drop the chain itself.
This "breaks"
W: [DUMP FAIL] 1/2 tests/shell/testcases/json/netdev
W: [DUMP FAIL] 2/2 tests/shell/testcases/chains/netdev_chain_0
any suggestions on how to handle this?
We can't fix the dump because old kernel will axe the empty basechain.
Should the dump files be removed?
next prev parent reply other threads:[~2024-10-31 14:01 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-12 12:21 [nf-next PATCH v3 00/16] Dynamic hook interface binding Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 01/16] netfilter: nf_tables: Keep deleted flowtable hooks until after RCU Phil Sutter
2024-09-12 13:32 ` Florian Westphal
2024-09-12 13:48 ` Phil Sutter
2024-09-12 14:27 ` Florian Westphal
2024-09-16 0:00 ` Pablo Neira Ayuso
2024-09-16 21:42 ` Pablo Neira Ayuso
2024-09-17 21:14 ` Pablo Neira Ayuso
2024-09-12 12:21 ` [nf-next PATCH v3 02/16] netfilter: nf_tables: Flowtable hook's pf value never varies Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 03/16] netfilter: nf_tables: Store user-defined hook ifname Phil Sutter
2024-09-12 12:56 ` Florian Westphal
2024-09-12 13:26 ` Phil Sutter
2024-09-12 13:38 ` Florian Westphal
2024-09-12 12:21 ` [nf-next PATCH v3 04/16] netfilter: nf_tables: Use stored ifname in netdev hook dumps Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 05/16] netfilter: nf_tables: Compare netdev hooks based on stored name Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 06/16] netfilter: nf_tables: Tolerate chains with no remaining hooks Phil Sutter
2024-10-31 14:01 ` Florian Westphal [this message]
2024-10-31 14:19 ` Phil Sutter
2024-10-31 14:37 ` Florian Westphal
2024-10-31 15:16 ` Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 07/16] netfilter: nf_tables: Introduce functions freeing nft_hook objects Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 08/16] netfilter: nf_tables: Introduce nft_hook_find_ops() Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 09/16] netfilter: nf_tables: Introduce nft_register_flowtable_ops() Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 10/16] netfilter: nf_tables: Have a list of nf_hook_ops in nft_hook Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 11/16] netfilter: nf_tables: chain: Respect NETDEV_REGISTER events Phil Sutter
2024-09-12 14:40 ` Florian Westphal
2024-09-12 15:05 ` Phil Sutter
2024-09-12 15:12 ` Florian Westphal
2024-09-12 15:41 ` Phil Sutter
2024-09-12 16:06 ` Florian Westphal
2024-09-12 16:25 ` Phil Sutter
2024-09-12 20:43 ` Florian Westphal
2024-09-13 11:42 ` Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 12/16] netfilter: nf_tables: flowtable: " Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 13/16] netfilter: nf_tables: Handle NETDEV_CHANGENAME events Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 14/16] netfilter: nf_tables: Support wildcard netdev hook specs Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 15/16] netfilter: nf_tables: Add notications for hook changes Phil Sutter
2024-09-12 12:21 ` [nf-next PATCH v3 16/16] selftests: netfilter: Torture nftables netdev hooks Phil Sutter
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