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From: Jesper Dangaard Brouer <brouer@redhat.com>
To: netdev@vger.kernel.org, Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Daniel Borkmann <borkmann@iogearbox.net>,
	yoel@kviknet.dk,
	Alexei Starovoitov <alexei.starovoitov@gmail.com>
Subject: [bpf-next PATCH 0/3] bpf/xdp: fix generic-XDP and demonstrate VLAN manipulation
Date: Tue, 25 Sep 2018 16:25:44 +0200	[thread overview]
Message-ID: <153788541527.7040.8722029216689268562.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 were introduced in v4.12, I think the bug is not exposed
until v4.14 in the mentined fixes commit.

---
p.s. send from Embedded Recipes 2018 in Paris

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         |    5 
 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, 508 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

             reply	other threads:[~2018-09-25 20:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-25 14:25 Jesper Dangaard Brouer [this message]
2018-09-25 14:25 ` [bpf-next PATCH 1/3] net: fix generic XDP to handle if eth header was mangled Jesper Dangaard Brouer
2018-09-26  5:36   ` Song Liu
2018-10-01 19:13     ` Daniel Borkmann
2018-10-03 14:04     ` Jesper Dangaard Brouer
2018-10-04 23:20       ` Song Liu
2018-09-25 14:25 ` [bpf-next PATCH 2/3] bpf: make TC vlan bpf_helpers avail to selftests Jesper Dangaard Brouer
2018-09-25 14:25 ` [bpf-next PATCH 3/3] selftests/bpf: add XDP selftests for modifying and popping VLAN headers Jesper Dangaard Brouer

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