On Wed, Sep 11, 2024 at 7:59 AM Donald Hunter <donald.hunter@xxxxxxxxx> wrote:
>
> Update the table of program types in the libbpf documentation with the
> recently added program types.
>
> Signed-off-by: Donald Hunter <donald.hunter@xxxxxxxxx>
> ---
> Documentation/bpf/libbpf/program_types.rst | 29 +++++++++++++++++++---
> 1 file changed, 25 insertions(+), 4 deletions(-)
>
> diff --git a/Documentation/bpf/libbpf/program_types.rst b/Documentation/bpf/libbpf/program_types.rst
> index 63bb88846e50..fa80a82d5681 100644
> --- a/Documentation/bpf/libbpf/program_types.rst
> +++ b/Documentation/bpf/libbpf/program_types.rst
> @@ -121,6 +121,8 @@ described in more detail in the footnotes.
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> | ``BPF_PROG_TYPE_LWT_XMIT`` | | ``lwt_xmit`` | |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> +| ``BPF_PROG_TYPE_NETFILTER`` | | ``netfilter`` | |
> ++-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> | ``BPF_PROG_TYPE_PERF_EVENT`` | | ``perf_event`` | |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> | ``BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE`` | | ``raw_tp.w+`` [#rawtp]_ | |
> @@ -131,11 +133,23 @@ described in more detail in the footnotes.
> + + +----------------------------------+-----------+
> | | | ``raw_tracepoint+`` | |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> -| ``BPF_PROG_TYPE_SCHED_ACT`` | | ``action`` | |
> +| ``BPF_PROG_TYPE_SCHED_ACT`` | | ``action`` [#tc_legacy]_ | |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> -| ``BPF_PROG_TYPE_SCHED_CLS`` | | ``classifier`` | |
> +| ``BPF_PROG_TYPE_SCHED_CLS`` | | ``classifier`` [#tc_legacy]_ | |
> + + +----------------------------------+-----------+
> -| | | ``tc`` | |
> +| | | ``tc`` [#tc_legacy]_ | |
> ++ +----------------------------------------+----------------------------------+-----------+
> +| | ``BPF_NETKIT_PRIMARY`` | ``netkit/primary`` | |
> ++ +----------------------------------------+----------------------------------+-----------+
> +| | ``BPF_NETKIT_PEER`` | ``netkit/peer`` | |
> ++ +----------------------------------------+----------------------------------+-----------+
> +| | ``BPF_TCX_INGRESS`` | ``tc/ingress`` | |
> ++ +----------------------------------------+----------------------------------+-----------+
> +| | ``BPF_TCX_EGRESS`` | ``tc/egress`` | |
> ++ +----------------------------------------+----------------------------------+-----------+
> +| | ``BPF_TCX_INGRESS`` | ``tcx/ingress`` | |
> ++ +----------------------------------------+----------------------------------+-----------+
> +| | ``BPF_TCX_EGRESS`` | ``tcx/egress`` | |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> | ``BPF_PROG_TYPE_SK_LOOKUP`` | ``BPF_SK_LOOKUP`` | ``sk_lookup`` | |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> @@ -155,7 +169,9 @@ described in more detail in the footnotes.
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> | ``BPF_PROG_TYPE_SOCK_OPS`` | ``BPF_CGROUP_SOCK_OPS`` | ``sockops`` | |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> -| ``BPF_PROG_TYPE_STRUCT_OPS`` | | ``struct_ops+`` | |
> +| ``BPF_PROG_TYPE_STRUCT_OPS`` | | ``struct_ops+`` [#struct_ops]_ | |
> ++ + +----------------------------------+-----------+
> +| | | ``struct_ops.s+`` [#struct_ops]_ | Yes |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> | ``BPF_PROG_TYPE_SYSCALL`` | | ``syscall`` | Yes |
> +-------------------------------------------+----------------------------------------+----------------------------------+-----------+
> @@ -209,5 +225,10 @@ described in more detail in the footnotes.
> ``a-zA-Z0-9_.*?``.
> .. [#lsm] The ``lsm`` attachment format is ``lsm[.s]/<hook>``.
> .. [#rawtp] The ``raw_tp`` attach format is ``raw_tracepoint[.w]/<tracepoint>``.
> +.. [#tc_legacy] The ``tc``, ``classifier`` and ``action`` attach types are deprecated, use
> + ``tcx/*`` instead.
> +.. [#struct_ops] The ``struct_ops`` attach format is ``struct_ops[.s]/<name>``, but name appears
> + to be ignored. The attachments are defined in a struct initializer that is
> + tagged with ``SEC(".struct_ops[.link]")``.
libbpf will happily accept just SEC("struct_ops"). So it would be more
correct to say that "struct_ops[.s]/<name>" is accepted, but name is
ignored. But other than that, just SEC("struct_ops") probably makes
most sense.
pw-bot: cr
> .. [#tp] The ``tracepoint`` attach format is ``tracepoint/<category>/<name>``.
> .. [#iter] The ``iter`` attach format is ``iter[.s]/<struct-name>``.
> --
> 2.45.2
>
