• Mathieu Xhonneux's avatar
    selftests/bpf: test for seg6local End.BPF action · c99a84ea
    Mathieu Xhonneux authored
    Add a new test for the seg6local End.BPF action. The following helpers
    are also tested:
    
    - bpf_lwt_push_encap within the LWT BPF IN hook
    - bpf_lwt_seg6_action
    - bpf_lwt_seg6_adjust_srh
    - bpf_lwt_seg6_store_bytes
    
    A chain of End.BPF actions is built. The SRH is injected through a LWT
    BPF IN hook before entering this chain. Each End.BPF action validates
    the previous one, otherwise the packet is dropped. The test succeeds
    if the last node in the chain receives the packet and the UDP datagram
    contained can be retrieved from userspace.
    Signed-off-by: default avatarMathieu Xhonneux <m.xhonneux@gmail.com>
    Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
    c99a84ea
test_lwt_seg6local.c 10.1 KB