Symbol: BPF_SYNCOOKIE_SACK
tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
358
hash |= BPF_SYNCOOKIE_SACK;
tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
499
ctx->attrs.sack_ok = cookie & BPF_SYNCOOKIE_SACK;