From: Jiri Olsa <jolsa@kernel.org>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>
Cc: Song Liu <song@kernel.org>,
bpf@vger.kernel.org, Martin KaFai Lau <kafai@fb.com>,
Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@chromium.org>,
Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>
Subject: [PATCHv4 bpf-next 2/2] bpf/selftests: Add verifier tests for loading sleepable programs
Date: Tue, 17 Jan 2023 23:37:05 +0100 [thread overview]
Message-ID: <20230117223705.440975-2-jolsa@kernel.org> (raw)
In-Reply-To: <20230117223705.440975-1-jolsa@kernel.org>
Adding verifier tests for loading all types od allowed
sleepable programs plus reject for tp_btf type.
Acked-by: Song Liu <song@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
.../selftests/bpf/verifier/sleepable.c | 91 +++++++++++++++++++
1 file changed, 91 insertions(+)
create mode 100644 tools/testing/selftests/bpf/verifier/sleepable.c
diff --git a/tools/testing/selftests/bpf/verifier/sleepable.c b/tools/testing/selftests/bpf/verifier/sleepable.c
new file mode 100644
index 000000000000..bea0daef908a
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/sleepable.c
@@ -0,0 +1,91 @@
+{
+ "sleepable fentry accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_FENTRY,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable fexit accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_FENTRY,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable fmod_ret accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_MODIFY_RETURN,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable iter accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_ITER,
+ .kfunc = "task",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable lsm accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_LSM,
+ .kfunc = "bpf",
+ .expected_attach_type = BPF_LSM_MAC,
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable uprobe accept",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_KPROBE,
+ .kfunc = "bpf_fentry_test1",
+ .result = ACCEPT,
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
+{
+ "sleepable raw tracepoint reject",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_TRACING,
+ .expected_attach_type = BPF_TRACE_RAW_TP,
+ .kfunc = "sched_switch",
+ .result = REJECT,
+ .errstr = "Only fentry/fexit/fmod_ret, lsm, iter and uprobe programs can be sleepable",
+ .flags = BPF_F_SLEEPABLE,
+ .runs = -1,
+},
--
2.39.0
next prev parent reply other threads:[~2023-01-17 22:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-17 22:37 [PATCHv4 bpf-next 1/2] bpf: Do not allow to load sleepable BPF_TRACE_RAW_TP program Jiri Olsa
2023-01-17 22:37 ` Jiri Olsa [this message]
2023-01-18 1:10 ` patchwork-bot+netdevbpf
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