fn test_ebpf_sock_op_too_many_connections()

in nfm-common/src/sock_ops_handler.rs [1027:1069]

• 37 lines of code
• 3 McCabe index (conditional complexity)

    fn test_ebpf_sock_op_too_many_connections() {
        let mut mock_ktime_us: u64 = 99;
        let mut cookie: u64 = 197;
        let mut mock_ebpf_maps = MockEbpfMaps::new();

        for _ in 0..MAX_ENTRIES_SK_PROPS_HI {
            run_sock_ops_test(
                cookie,
                BPF_SOCK_OPS_TCP_CONNECT_CB,
                &mut mock_ebpf_maps,
                mock_ktime_us,
                Ok(()),
            );

            cookie += 3;
            mock_ktime_us += 10;
        }

        for _ in 0..10 {
            run_sock_ops_test(
                cookie,
                BPF_SOCK_OPS_TCP_CONNECT_CB,
                &mut mock_ebpf_maps,
                mock_ktime_us,
                Err(SockOpsResultCode::MapInsertionError),
            );

            cookie += 3;
            mock_ktime_us += 10;
        }

        // Validate results.
        assert!(MAX_ENTRIES_SK_PROPS_HI > 0);
        assert_eq!(
            mock_ebpf_maps.NFM_SK_PROPS.data.len(),
            MAX_ENTRIES_SK_PROPS_HI.try_into().unwrap()
        );
        assert_eq!(
            mock_ebpf_maps.counters().active_connect_events,
            (MAX_ENTRIES_SK_PROPS_HI + 10).try_into().unwrap()
        );
        assert_eq!(mock_ebpf_maps.counters().map_insertion_errors, 10);
    }