linux/tools/testing
Jussi Maki 6fd5fb6382 selftests/bpf: Add test for l3 use of bpf_redirect_peer
Add a test case for using bpf_skb_change_head() in combination with
bpf_redirect_peer() to redirect a packet from a L3 device to veth and back.

The test uses a BPF program that adds L2 headers to the packet coming
from a L3 device and then calls bpf_redirect_peer() to redirect the packet
to a veth device. The test fails as skb->mac_len is not set properly and
thus the ethernet headers are not properly skb_pull'd in cls_bpf_classify(),
causing tcp_v4_rcv() to point the TCP header into middle of the IP header.

Signed-off-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210525102955.2811090-1-joamaki@gmail.com
2021-05-25 18:00:28 +02:00
..
fault-injection
ktest ktest: Re-arrange the code blocks for better discoverability 2021-05-03 18:57:03 -04:00
kunit linux-kselftest-kunit-5.13-rc1 2021-04-27 18:56:29 -07:00
nvdimm ndtest: Add papr health related flags 2021-01-28 00:22:49 -08:00
radix-tree idr test suite: Improve reporting from idr_find_test_1 2021-04-01 07:50:42 -04:00
scatterlist tools/testing/scatterlist: Fix overflow of max segment size 2021-01-28 15:17:39 -04:00
selftests selftests/bpf: Add test for l3 use of bpf_redirect_peer 2021-05-25 18:00:28 +02:00
vsock