From: Jesper Dangaard Brouer <brouer@redhat.com>
To: netdev@vger.kernel.org, Jesper Dangaard Brouer <brouer@redhat.com>
Cc: liu.song.a23@gmail.com, Daniel Borkmann <borkmann@iogearbox.net>,
yoel@kviknet.dk,
Alexei Starovoitov <alexei.starovoitov@gmail.com>,
John Fastabend <john.fastabend@gmail.com>
Subject: [bpf-next V2 PATCH 0/3] bpf/xdp: fix generic-XDP and demonstrate VLAN manipulation
Date: Tue, 09 Oct 2018 12:04:37 +0200 [thread overview]
Message-ID: <153907945478.9484.16223890803803124822.stgit@firesoul> (raw)
While implementing PoC building blocks for eBPF code XDP+TC that can
manipulate VLANs headers, I discovered a bug in generic-XDP.
The fix should be backported to stable kernels. Even-though
generic-XDP was introduced in v4.12, I think the bug is not exposed
until v4.14 in the mentined fixes commit.
---
Jesper Dangaard Brouer (3):
net: fix generic XDP to handle if eth header was mangled
bpf: make TC vlan bpf_helpers avail to selftests
selftests/bpf: add XDP selftests for modifying and popping VLAN headers
net/core/dev.c | 14 +
tools/testing/selftests/bpf/Makefile | 6 -
tools/testing/selftests/bpf/bpf_helpers.h | 4
tools/testing/selftests/bpf/test_xdp_vlan.c | 292 ++++++++++++++++++++++++++
tools/testing/selftests/bpf/test_xdp_vlan.sh | 195 +++++++++++++++++
5 files changed, 509 insertions(+), 2 deletions(-)
create mode 100644 tools/testing/selftests/bpf/test_xdp_vlan.c
create mode 100755 tools/testing/selftests/bpf/test_xdp_vlan.sh
next reply other threads:[~2018-10-09 17:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-09 10:04 Jesper Dangaard Brouer [this message]
2018-10-09 10:04 ` [bpf-next V2 PATCH 1/3] net: fix generic XDP to handle if eth header was mangled Jesper Dangaard Brouer
2018-10-09 10:04 ` [bpf-next V2 PATCH 2/3] bpf: make TC vlan bpf_helpers avail to selftests Jesper Dangaard Brouer
2018-10-09 10:04 ` [bpf-next V2 PATCH 3/3] selftests/bpf: add XDP selftests for modifying and popping VLAN headers Jesper Dangaard Brouer
2018-10-09 18:47 ` [bpf-next V2 PATCH 0/3] bpf/xdp: fix generic-XDP and demonstrate VLAN manipulation Song Liu
2018-10-10 5:02 ` Alexei Starovoitov
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