On Mon, Jun 22, 2020 at 5:38 PM Yonghong Song <yhs@xxxxxx> wrote:
>
> On my VM, I got identical results between /proc/net/udp[6] and
> the udp{4,6} bpf iterator.
>
> For udp6:
> $ cat /sys/fs/bpf/p1
> sl local_address remote_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
> 1405: 000080FE00000000FF7CC4D0D9EFE4FE:0222 00000000000000000000000000000000:0000 07 00000000:00000000 00:00000000 00000000 193 0 19183 2 0000000029eab111 0
> $ cat /proc/net/udp6
> sl local_address remote_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
> 1405: 000080FE00000000FF7CC4D0D9EFE4FE:0222 00000000000000000000000000000000:0000 07 00000000:00000000 00:00000000 00000000 193 0 19183 2 0000000029eab111 0
>
> For udp4:
> $ cat /sys/fs/bpf/p4
> sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
> 2007: 00000000:1F90 00000000:0000 07 00000000:00000000 00:00000000 00000000 0 0 72540 2 000000004ede477a 0
> $ cat /proc/net/udp
> sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode ref pointer drops
> 2007: 00000000:1F90 00000000:0000 07 00000000:00000000 00:00000000 00000000 0 0 72540 2 000000004ede477a 0
> ---
patch subject prefix is misleading: tools/bpf -> selftests/bpf?
Otherwise:
Acked-by: Andrii Nakryiko <andriin@xxxxxx>
> tools/testing/selftests/bpf/progs/bpf_iter.h | 16 ++++
> .../selftests/bpf/progs/bpf_iter_udp4.c | 71 +++++++++++++++++
> .../selftests/bpf/progs/bpf_iter_udp6.c | 79 +++++++++++++++++++
> 3 files changed, 166 insertions(+)
> create mode 100644 tools/testing/selftests/bpf/progs/bpf_iter_udp4.c
> create mode 100644 tools/testing/selftests/bpf/progs/bpf_iter_udp6.c
>
[...]
