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Message-ID: <CAEf4BzarqE+t35r-+3r5AYHVcw9qaraaG+h0CTjn-b-9vX4dYg@mail.gmail.com>
Date: Fri, 29 Mar 2024 15:09:31 -0700
From: Andrii Nakryiko <andrii.nakryiko@...il.com>
To: Jordan Rife <jrife@...gle.com>
Cc: bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
netdev@...r.kernel.org, Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>,
Martin KaFai Lau <martin.lau@...ux.dev>, Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>,
Yonghong Song <yonghong.song@...ux.dev>, John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...gle.com>, Hao Luo <haoluo@...gle.com>,
Jiri Olsa <jolsa@...nel.org>, Mykola Lysenko <mykolal@...com>, Shuah Khan <shuah@...nel.org>,
"David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
Jesper Dangaard Brouer <hawk@...nel.org>, Daan De Meyer <daan.j.demeyer@...il.com>
Subject: Re: [PATCH v1 bpf-next 1/8] selftests/bpf: Introduce sock_addr_testmod
On Fri, Mar 29, 2024 at 12:20 PM Jordan Rife <jrife@...gle.com> wrote:
>
> sock_addr_testmod provides a mechanism for the sock_addr_kern prog_test
> to drive socket operations in kernel space. On init, one of the
> following socket operations is performed based on the module parameters:
> kernel_bind(), kernel_connect(), or sock_sendmsg()/kernel_sendmsg() and
> results are exposed through debugfs.
>
> Signed-off-by: Jordan Rife <jrife@...gle.com>
> ---
> tools/testing/selftests/bpf/Makefile | 11 +-
> .../bpf/sock_addr_testmod/.gitignore | 6 +
> .../selftests/bpf/sock_addr_testmod/Makefile | 20 ++
> .../bpf/sock_addr_testmod/sock_addr_testmod.c | 256 ++++++++++++++++++
> 4 files changed, 292 insertions(+), 1 deletion(-)
> create mode 100644 tools/testing/selftests/bpf/sock_addr_testmod/.gitignore
> create mode 100644 tools/testing/selftests/bpf/sock_addr_testmod/Makefile
> create mode 100644 tools/testing/selftests/bpf/sock_addr_testmod/sock_addr_testmod.c
>
> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> index 3b9eb40d63436..b5d02ff724957 100644
> --- a/tools/testing/selftests/bpf/Makefile
> +++ b/tools/testing/selftests/bpf/Makefile
> @@ -132,7 +132,7 @@ TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
> flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
> test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \
> xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \
> - xdp_features bpf_test_no_cfi.ko
> + xdp_features bpf_test_no_cfi.ko sock_addr_testmod.ko
>
Do we need yet another kernel module? Can this be done as part of
existing bpf_testmod module?
> TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi
>
> @@ -160,6 +160,7 @@ override define CLEAN
> $(Q)$(RM) -r $(TEST_GEN_FILES)
> $(Q)$(RM) -r $(EXTRA_CLEAN)
> $(Q)$(MAKE) -C bpf_testmod clean
> + $(Q)$(MAKE) -C sock_addr_testmod clean
> $(Q)$(MAKE) docs-clean
> endef
>
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References: <20240329191907.1808635-1-jrife@...gle.com> <20240329191907.1808635-2-jrife@...gle.com>
In-Reply-To: <20240329191907.1808635-2-jrife@...gle.com>
From: Andrii Nakryiko <andrii.nakryiko@...il.com>
Date: Fri, 29 Mar 2024 15:09:31 -0700
Message-ID: <CAEf4BzarqE+t35r-+3r5AYHVcw9qaraaG+h0CTjn-b-9vX4dYg@...l.gmail.com>
Subject: Re: [PATCH v1 bpf-next 1/8] selftests/bpf: Introduce sock_addr_testmod
To: Jordan Rife <jrife@...gle.com>
Cc: bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
netdev@...r.kernel.org, Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>,
Martin KaFai Lau <martin.lau@...ux.dev>, Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>,
Yonghong Song <yonghong.song@...ux.dev>, John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...gle.com>, Hao Luo <haoluo@...gle.com>,
Jiri Olsa <jolsa@...nel.org>, Mykola Lysenko <mykolal@...com>, Shuah Khan <shuah@...nel.org>,
"David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
Jesper Dangaard Brouer <hawk@...nel.org>, Daan De Meyer <daan.j.demeyer@...il.com>
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On Fri, Mar 29, 2024 at 12:20 PM Jordan Rife <jrife@...gle.com> wrote:
>
> sock_addr_testmod provides a mechanism for the sock_addr_kern prog_test
> to drive socket operations in kernel space. On init, one of the
> following socket operations is performed based on the module parameters:
> kernel_bind(), kernel_connect(), or sock_sendmsg()/kernel_sendmsg() and
> results are exposed through debugfs.
>
> Signed-off-by: Jordan Rife <jrife@...gle.com>
> ---
> tools/testing/selftests/bpf/Makefile | 11 +-
> .../bpf/sock_addr_testmod/.gitignore | 6 +
> .../selftests/bpf/sock_addr_testmod/Makefile | 20 ++
> .../bpf/sock_addr_testmod/sock_addr_testmod.c | 256 ++++++++++++++++++
> 4 files changed, 292 insertions(+), 1 deletion(-)
> create mode 100644 tools/testing/selftests/bpf/sock_addr_testmod/.gitignore
> create mode 100644 tools/testing/selftests/bpf/sock_addr_testmod/Makefile
> create mode 100644 tools/testing/selftests/bpf/sock_addr_testmod/sock_addr_testmod.c
>
> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> index 3b9eb40d63436..b5d02ff724957 100644
> --- a/tools/testing/selftests/bpf/Makefile
> +++ b/tools/testing/selftests/bpf/Makefile
> @@ -132,7 +132,7 @@ TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
> flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
> test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \
> xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \
> - xdp_features bpf_test_no_cfi.ko
> + xdp_features bpf_test_no_cfi.ko sock_addr_testmod.ko
>
Do we need yet another kernel module? Can this be done as part of
existing bpf_testmod module?
> TEST_GEN_FILES += liburandom_read.so urandom_read sign-file uprobe_multi
>
> @@ -160,6 +160,7 @@ override define CLEAN
> $(Q)$(RM) -r $(TEST_GEN_FILES)
> $(Q)$(RM) -r $(EXTRA_CLEAN)
> $(Q)$(MAKE) -C bpf_testmod clean
> + $(Q)$(MAKE) -C sock_addr_testmod clean
> $(Q)$(MAKE) docs-clean
> endef
>
[...]
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