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 v7 0/9] bpf: getsockopt and setsockopt hooks
Date: Wed, 19 Jun 2019 09:59:48 -0700 [thread overview]
Message-ID: <20190619165957.235580-1-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 (9):
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
selftests/bpf: add sockopt test that exercises sk helpers
selftests/bpf: add sockopt test that exercises BPF_F_ALLOW_MULTI
bpf: add sockopt documentation
bpftool: support cgroup sockopt
Documentation/bpf/index.rst | 1 +
Documentation/bpf/prog_cgroup_sockopt.rst | 82 ++
include/linux/bpf-cgroup.h | 43 +
include/linux/bpf.h | 2 +
include/linux/bpf_types.h | 1 +
include/linux/filter.h | 14 +
include/uapi/linux/bpf.h | 14 +
kernel/bpf/cgroup.c | 317 +++++++
kernel/bpf/core.c | 9 +
kernel/bpf/syscall.c | 19 +
kernel/bpf/verifier.c | 13 +
net/core/filter.c | 2 +-
net/socket.c | 16 +
.../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 | 14 +
tools/lib/bpf/libbpf.c | 5 +
tools/lib/bpf/libbpf_probes.c | 1 +
tools/testing/selftests/bpf/.gitignore | 3 +
tools/testing/selftests/bpf/Makefile | 6 +-
.../selftests/bpf/progs/sockopt_multi.c | 53 ++
.../testing/selftests/bpf/progs/sockopt_sk.c | 91 ++
.../selftests/bpf/test_section_names.c | 10 +
tools/testing/selftests/bpf/test_sockopt.c | 892 ++++++++++++++++++
.../selftests/bpf/test_sockopt_multi.c | 276 ++++++
tools/testing/selftests/bpf/test_sockopt_sk.c | 185 ++++
30 files changed, 2085 insertions(+), 10 deletions(-)
create mode 100644 Documentation/bpf/prog_cgroup_sockopt.rst
create mode 100644 tools/testing/selftests/bpf/progs/sockopt_multi.c
create mode 100644 tools/testing/selftests/bpf/progs/sockopt_sk.c
create mode 100644 tools/testing/selftests/bpf/test_sockopt.c
create mode 100644 tools/testing/selftests/bpf/test_sockopt_multi.c
create mode 100644 tools/testing/selftests/bpf/test_sockopt_sk.c
--
2.22.0.410.gd8fdbe21b5-goog
next reply other threads:[~2019-06-19 17:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-19 16:59 Stanislav Fomichev [this message]
2019-06-19 16:59 ` [PATCH bpf-next v7 1/9] bpf: implement getsockopt and setsockopt hooks Stanislav Fomichev
2019-06-19 19:31 ` Andrii Nakryiko
2019-06-19 20:17 ` Stanislav Fomichev
2019-06-19 21:45 ` Andrii Nakryiko
2019-06-19 22:20 ` Stanislav Fomichev
2019-06-21 17:11 ` kbuild test robot
2019-06-19 16:59 ` [PATCH bpf-next v7 2/9] bpf: sync bpf.h to tools/ Stanislav Fomichev
2019-06-19 16:59 ` [PATCH bpf-next v7 3/9] libbpf: support sockopt hooks Stanislav Fomichev
2019-06-19 16:59 ` [PATCH bpf-next v7 4/9] selftests/bpf: test sockopt section name Stanislav Fomichev
2019-06-19 16:59 ` [PATCH bpf-next v7 5/9] selftests/bpf: add sockopt test Stanislav Fomichev
2019-06-19 16:59 ` [PATCH bpf-next v7 6/9] selftests/bpf: add sockopt test that exercises sk helpers Stanislav Fomichev
2019-06-19 16:59 ` [PATCH bpf-next v7 7/9] selftests/bpf: add sockopt test that exercises BPF_F_ALLOW_MULTI Stanislav Fomichev
2019-06-19 16:59 ` [PATCH bpf-next v7 8/9] bpf: add sockopt documentation Stanislav Fomichev
2019-06-19 16:59 ` [PATCH bpf-next v7 9/9] bpftool: support cgroup sockopt Stanislav Fomichev
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