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authorStanislav Fomichev <sdf@google.com>2019-04-22 18:55:45 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2019-04-23 19:36:34 +0300
commit7b8a1304323b35bbf060e0d29691031056836b73 (patch)
tree19d54fc05d3c50660c9c7277e11ebda3665e12cf /net/ethernet
parent089b19a9204fc090793d389a265f54124eacb05d (diff)
downloadlinux-7b8a1304323b35bbf060e0d29691031056836b73.tar.xz
bpf: when doing BPF_PROG_TEST_RUN for flow dissector use no-skb mode
Now that we have bpf_flow_dissect which can work on raw data, use it when doing BPF_PROG_TEST_RUN for flow dissector. Simplifies bpf_prog_test_run_flow_dissector and allows us to test no-skb mode. Note, that previously, with bpf_flow_dissect_skb we used to call eth_type_trans which pulled L2 (ETH_HLEN) header and we explicitly called skb_reset_network_header. That means flow_keys->nhoff would be initialized to 0 (skb_network_offset) in init_flow_keys. Now we call bpf_flow_dissect with nhoff set to ETH_HLEN and need to undo it once the dissection is done to preserve the existing behavior. Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net/ethernet')
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