SO_COOKIE        1506 net/core/sock.c 	case SO_COOKIE:
SO_COOKIE         233 samples/bpf/cookie_uid_helper_example.c 	res = getsockopt(s_send, SOL_SOCKET, SO_COOKIE, &cookie, &cookie_len);
SO_COOKIE        1494 tools/testing/selftests/bpf/test_maps.c 		err = getsockopt(fd64, SOL_SOCKET, SO_COOKIE, &sk_cookie,