Searched hist:"6 fd5fb63820a9a1146aba0bba2fdbc1db4b903e7" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/tools/testing/selftests/bpf/progs/ |
| H A D | test_tc_peer.c | diff 6fd5fb63820a9a1146aba0bba2fdbc1db4b903e7 Tue May 25 05:29:55 CDT 2021 Jussi Maki <joamaki@gmail.com> 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
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| /openbmc/linux/tools/testing/selftests/bpf/prog_tests/ |
| H A D | tc_redirect.c | diff 6fd5fb63820a9a1146aba0bba2fdbc1db4b903e7 Tue May 25 05:29:55 CDT 2021 Jussi Maki <joamaki@gmail.com> 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
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