netdev - [bpf-next PATCH v2 0/2] bpftool support for sockmap use cases

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Message-ID: <20181015151336.9258.37606.stgit@john-Precision-Tower-5810>
Date:   Mon, 15 Oct 2018 08:17:43 -0700
From:   John Fastabend <john.fastabend@...il.com>
To:     jakub.kicinski@...ronome.com, ast@...nel.org, daniel@...earbox.net
Cc:     netdev@...r.kernel.org
Subject: [bpf-next PATCH v2 0/2] bpftool support for sockmap use cases

The first patch adds support for attaching programs to maps. This is
needed to support sock{map|hash} use from bpftool. Currently, I carry
around custom code to do this so doing it using standard bpftool will
be great.

The second patch adds a compat mode to ignore non-zero entries in
the map def. This allows using bpftool with maps that have a extra
fields that the user knows can be ignored. This is needed to work
correctly with maps being loaded by other tools or directly via
syscalls.

---

John Fastabend (2):
      bpf: bpftool, add support for attaching programs to maps
      bpf: bpftool, add flag to allow non-compat map definitions

 tools/bpf/bpftool/Documentation/bpftool-prog.rst |   11 ++
 tools/bpf/bpftool/Documentation/bpftool.rst      |    2 
 tools/bpf/bpftool/bash-completion/bpftool        |   19 ++++
 tools/bpf/bpftool/main.c                         |    7 +-
 tools/bpf/bpftool/main.h                         |    3 -
 tools/bpf/bpftool/prog.c                         |  101 ++++++++++++++++++++++
 tools/lib/bpf/bpf.h                              |    3 +
 tools/lib/bpf/libbpf.c                           |   27 ++++--
 tools/lib/bpf/libbpf.h                           |    2 
 9 files changed, 160 insertions(+), 15 deletions(-)

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