• Petar Penkov's avatar
    selftests/bpf: test bpf flow dissection · 50b3ed57
    Petar Penkov authored
    Adds a test that sends different types of packets over multiple
    tunnels and verifies that valid packets are dissected correctly.  To do
    so, a tc-flower rule is added to drop packets on UDP src port 9, and
    packets are sent from ports 8, 9, and 10. Only the packets on port 9
    should be dropped. Because tc-flower relies on the flow dissector to
    match flows, correct classification demonstrates correct dissection.
    
    Also add support logic to load the BPF program and to inject the test
    packets.
    Signed-off-by: default avatarPetar Penkov <ppenkov@google.com>
    Signed-off-by: default avatarWillem de Bruijn <willemb@google.com>
    Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
    50b3ed57
flow_dissector_load.c 3.07 KB