From: Stanislav Fomichev <sdf@google•com>
To: netdev@vger•kernel.org, bpf@vger•kernel.org
Cc: davem@davemloft•net, ast@kernel•org, daniel@iogearbox•net,
Stanislav Fomichev <sdf@google•com>
Subject: [PATCH bpf-next 0/7] bpf: getsockopt and setsockopt hooks
Date: Tue, 4 Jun 2019 14:35:17 -0700 [thread overview]
Message-ID: <20190604213524.76347-1-sdf@google.com> (raw)
This series implements two new per-cgroup hooks: getsockopt and
setsockopt along with a new sockopt program type. The idea is pretty
similar to recently introduced cgroup sysctl hooks, but
implementation is simpler (no need to convert to/from strings).
What this can be applied to:
* move business logic of what tos/priority/etc can be set by
containers (either pass or reject)
* handle existing options (or introduce new ones) differently by
propagating some information in cgroup/socket local storage
Compared to a simple syscall/{g,s}etsockopt tracepoint, those
hooks are context aware. Meaning, they can access underlying socket
and use cgroup and socket local storage.
Stanislav Fomichev (7):
bpf: implement getsockopt and setsockopt hooks
bpf: sync bpf.h to tools/
libbpf: support sockopt hooks
selftests/bpf: test sockopt section name
selftests/bpf: add sockopt test
bpf: add sockopt documentation
bpftool: support cgroup sockopt
Documentation/bpf/index.rst | 1 +
Documentation/bpf/prog_cgroup_sockopt.rst | 42 +
include/linux/bpf-cgroup.h | 29 +
include/linux/bpf.h | 2 +
include/linux/bpf_types.h | 1 +
include/linux/filter.h | 19 +
include/uapi/linux/bpf.h | 17 +-
kernel/bpf/cgroup.c | 288 +++++++
kernel/bpf/syscall.c | 19 +
kernel/bpf/verifier.c | 12 +
net/core/filter.c | 4 +-
net/socket.c | 18 +
.../bpftool/Documentation/bpftool-cgroup.rst | 7 +-
.../bpftool/Documentation/bpftool-prog.rst | 2 +-
tools/bpf/bpftool/bash-completion/bpftool | 8 +-
tools/bpf/bpftool/cgroup.c | 5 +-
tools/bpf/bpftool/main.h | 1 +
tools/bpf/bpftool/prog.c | 3 +-
tools/include/uapi/linux/bpf.h | 17 +-
tools/lib/bpf/libbpf.c | 5 +
tools/lib/bpf/libbpf_probes.c | 1 +
tools/testing/selftests/bpf/.gitignore | 1 +
tools/testing/selftests/bpf/Makefile | 3 +-
tools/testing/selftests/bpf/bpf_helpers.h | 2 +
.../selftests/bpf/test_section_names.c | 10 +
tools/testing/selftests/bpf/test_sockopt.c | 789 ++++++++++++++++++
26 files changed, 1293 insertions(+), 13 deletions(-)
create mode 100644 Documentation/bpf/prog_cgroup_sockopt.rst
create mode 100644 tools/testing/selftests/bpf/test_sockopt.c
--
2.22.0.rc1.311.g5d7573a151-goog
next reply other threads:[~2019-06-04 21:35 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-04 21:35 Stanislav Fomichev [this message]
2019-06-04 21:35 ` [PATCH bpf-next 1/7] bpf: implement getsockopt and setsockopt hooks Stanislav Fomichev
2019-06-05 18:47 ` Martin Lau
2019-06-05 19:17 ` Stanislav Fomichev
2019-06-05 20:50 ` Martin Lau
2019-06-05 21:16 ` Stanislav Fomichev
2019-06-05 21:41 ` Martin Lau
2019-06-05 19:32 ` Andrii Nakryiko
2019-06-05 20:54 ` Stanislav Fomichev
2019-06-05 21:12 ` Andrii Nakryiko
2019-06-05 21:30 ` Stanislav Fomichev
2019-06-04 21:35 ` [PATCH bpf-next 2/7] bpf: sync bpf.h to tools/ Stanislav Fomichev
2019-06-04 21:35 ` [PATCH bpf-next 3/7] libbpf: support sockopt hooks Stanislav Fomichev
2019-06-04 21:35 ` [PATCH bpf-next 4/7] selftests/bpf: test sockopt section name Stanislav Fomichev
2019-06-04 21:35 ` [PATCH bpf-next 5/7] selftests/bpf: add sockopt test Stanislav Fomichev
2019-06-04 21:35 ` [PATCH bpf-next 6/7] bpf: add sockopt documentation Stanislav Fomichev
2019-06-04 21:35 ` [PATCH bpf-next 7/7] bpftool: support cgroup sockopt Stanislav Fomichev
2019-06-04 21:55 ` Jakub Kicinski
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