netdev - [PATCH bpf-next 0/2] bpf: Add ipip6 and ip6ip decap support for bpf_skb_adjust

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Date:   Fri, 6 Jan 2023 11:55:19 +0800
From:   Ziyang Xuan <william.xuanziyang@...wei.com>
To:     <ast@...nel.org>, <daniel@...earbox.net>, <andrii@...nel.org>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <bpf@...r.kernel.org>,
        <netdev@...r.kernel.org>, <martin.lau@...ux.dev>,
        <song@...nel.org>, <yhs@...com>, <john.fastabend@...il.com>,
        <kpsingh@...nel.org>, <sdf@...gle.com>, <haoluo@...gle.com>,
        <jolsa@...nel.org>
Subject: [PATCH bpf-next 0/2] bpf: Add ipip6 and ip6ip decap support for bpf_skb_adjust_room()

Add ipip6 and ip6ip decap support for bpf_skb_adjust_room().
Main use case is for using cls_bpf on ingress hook to decapsulate
IPv4 over IPv6 and IPv6 over IPv4 tunnel packets.

And add ipip6 and ip6ip decap testcases to verify that
bpf_skb_adjust_room() correctly decapsulate ipip6 and ip6ip
tunnel packets.

Ziyang Xuan (2):
  bpf: Add ipip6 and ip6ip decap support for bpf_skb_adjust_room()
  selftests/bpf: add ipip6 and ip6ip decap to test_tc_tunnel

 net/core/filter.c                             | 34 +++++++++-
 .../selftests/bpf/progs/test_tc_tunnel.c      | 64 +++++++++++++++++++
 tools/testing/selftests/bpf/test_tc_tunnel.sh | 15 +++--
 3 files changed, 105 insertions(+), 8 deletions(-)

-- 
2.25.1