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Thu, 12 Aug 2021 08:30:18 -0700 (PDT) Date: Thu, 12 Aug 2021 08:30:11 -0700 In-Reply-To: <20210812153011.983006-1-sdf@google.com> Message-Id: <20210812153011.983006-3-sdf@google.com> Mime-Version: 1.0 References: <20210812153011.983006-1-sdf@google.com> X-Mailer: git-send-email 2.33.0.rc1.237.g0d66db33f3-goog Subject: [PATCH bpf-next v2 2/2] selftests/bpf: verify bpf_get_netns_cookie in BPF_PROG_TYPE_CGROUP_SOCKOPT From: Stanislav Fomichev To: netdev@vger.kernel.org, bpf@vger.kernel.org Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, Stanislav Fomichev Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add verifier ctx test to call bpf_get_netns_cookie from cgroup/setsockopt. #269/p pass ctx or null check, 1: ctx Did not run the program (not supported) OK #270/p pass ctx or null check, 2: null Did not run the program (not supported) OK #271/p pass ctx or null check, 3: 1 OK #272/p pass ctx or null check, 4: ctx - const OK #273/p pass ctx or null check, 5: null (connect) Did not run the program (not supported) OK #274/p pass ctx or null check, 6: null (bind) Did not run the program (not supported) OK #275/p pass ctx or null check, 7: ctx (bind) Did not run the program (not supported) OK #276/p pass ctx or null check, 8: null (bind) OK #277/p pass ctx or null check, 9: ctx (cgroup/setsockopt) Did not run the program (not supported) OK #278/p pass ctx or null check, 10: null (cgroup/setsockopt) Did not run the program (not supported) OK Signed-off-by: Stanislav Fomichev --- tools/testing/selftests/bpf/verifier/ctx.c | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/tools/testing/selftests/bpf/verifier/ctx.c b/tools/testing/selftests/bpf/verifier/ctx.c index 23080862aafd..3e7fdbf898b1 100644 --- a/tools/testing/selftests/bpf/verifier/ctx.c +++ b/tools/testing/selftests/bpf/verifier/ctx.c @@ -195,3 +195,28 @@ .result = REJECT, .errstr = "R1 type=inv expected=ctx", }, +{ + "pass ctx or null check, 9: ctx (cgroup/setsockopt)", + .insns = { + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, + BPF_FUNC_get_netns_cookie), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_CGROUP_SOCKOPT, + .expected_attach_type = BPF_CGROUP_SETSOCKOPT, + .result = ACCEPT, +}, +{ + "pass ctx or null check, 10: null (cgroup/setsockopt)", + .insns = { + BPF_MOV64_IMM(BPF_REG_1, 0), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, + BPF_FUNC_get_netns_cookie), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_CGROUP_SOCKOPT, + .expected_attach_type = BPF_CGROUP_SETSOCKOPT, + .result = ACCEPT, +}, -- 2.33.0.rc1.237.g0d66db33f3-goog