Messages in this thread | | | From | Toke Høiland-Jørgensen <> | Subject | Re: [PATCH bpf-next 2/3] bpf: Add support for writing to nf_conn:mark | Date | Tue, 16 Aug 2022 00:25:06 +0200 |
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Daniel Xu <dxu@dxuuu.xyz> writes:
> Support direct writes to nf_conn:mark from TC and XDP prog types. This > is useful when applications want to store per-connection metadata. This > is also particularly useful for applications that run both bpf and > iptables/nftables because the latter can trivially access this metadata. > > One example use case would be if a bpf prog is responsible for advanced > packet classification and iptables/nftables is later used for routing > due to pre-existing/legacy code. > > Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Didn't we agree the last time around that all field access should be using helper kfuncs instead of allowing direct writes to struct nf_conn?
-Toke
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