From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Cc: Stanislav Fomichev <sdf@fomichev.me>,
Stanislav Fomichev <sdf@google.com>,
Network Development <netdev@vger.kernel.org>,
bpf <bpf@vger.kernel.org>, David Miller <davem@davemloft.net>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Simon Horman <simon.horman@netronome.com>,
Willem de Bruijn <willemb@google.com>,
Petar Penkov <peterpenkov96@gmail.com>
Subject: Re: [RFC bpf-next v3 6/8] flow_dissector: handle no-skb use case
Date: Tue, 26 Mar 2019 11:08:33 -0700 [thread overview]
Message-ID: <CAADnVQLiGZv=PzqFd=9f02spzo-vibrKBM7kRpTp29L=FeeooQ@mail.gmail.com> (raw)
In-Reply-To: <CAF=yD-KzG1E0kL3s4TfYX+T8Bc3VeZw9siKK8iDHAN1uyYDyLA@mail.gmail.com>
On Tue, Mar 26, 2019 at 10:52 AM Willem de Bruijn
<willemdebruijn.kernel@gmail.com> wrote:
> The BPF flow dissector should work the same. It is fine to pass the
> data including ethernet header, but parsing can start at nhoff with
> proto explicitly passed.
>
> We should not assume Ethernet link layer.
then skb-less dissector has to be different program type
because semantics are different.
next prev parent reply other threads:[~2019-03-26 18:08 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-22 19:58 [RFC bpf-next v3 0/8] net: flow_dissector: trigger BPF hook when called from eth_get_headlen Stanislav Fomichev
2019-03-22 19:58 ` [RFC bpf-next v3 1/8] flow_dissector: allow access only to a subset of __sk_buff fields Stanislav Fomichev
2019-03-22 19:58 ` [RFC bpf-next v3 2/8] flow_dissector: switch kernel context to struct bpf_flow_dissector Stanislav Fomichev
2019-03-22 19:58 ` [RFC bpf-next v3 3/8] flow_dissector: fix clamping of BPF flow_keys for non-zero nhoff Stanislav Fomichev
2019-03-22 19:58 ` [RFC bpf-next v3 4/8] bpf: when doing BPF_PROG_TEST_RUN for flow dissector use no-skb mode Stanislav Fomichev
2019-03-22 19:59 ` [RFC bpf-next v3 5/8] net: plumb network namespace into __skb_flow_dissect Stanislav Fomichev
2019-03-22 19:59 ` [RFC bpf-next v3 6/8] flow_dissector: handle no-skb use case Stanislav Fomichev
2019-03-23 1:00 ` Alexei Starovoitov
2019-03-23 1:19 ` Stanislav Fomichev
2019-03-23 1:41 ` Alexei Starovoitov
2019-03-23 16:05 ` Stanislav Fomichev
2019-03-26 0:35 ` Alexei Starovoitov
2019-03-26 16:45 ` Stanislav Fomichev
2019-03-26 17:48 ` Alexei Starovoitov
2019-03-26 17:51 ` Willem de Bruijn
2019-03-26 18:08 ` Alexei Starovoitov [this message]
2019-03-26 18:17 ` Stanislav Fomichev
2019-03-26 18:30 ` Alexei Starovoitov
2019-03-26 18:54 ` Stanislav Fomichev
2019-03-27 1:41 ` Alexei Starovoitov
2019-03-27 2:44 ` Stanislav Fomichev
2019-03-27 17:55 ` Alexei Starovoitov
2019-03-27 19:58 ` Stanislav Fomichev
2019-03-28 1:26 ` Alexei Starovoitov
2019-03-28 3:14 ` Willem de Bruijn
2019-03-28 3:32 ` Alexei Starovoitov
2019-03-28 4:17 ` Stanislav Fomichev
2019-03-28 12:58 ` Willem de Bruijn
2019-04-01 16:30 ` Stanislav Fomichev
2019-03-22 19:59 ` [RFC bpf-next v3 7/8] net: pass net argument to the eth_get_headlen Stanislav Fomichev
2019-03-22 19:59 ` [RFC bpf-next v3 8/8] selftests/bpf: add flow dissector bpf_skb_load_bytes helper test Stanislav Fomichev
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