[PATCH bpf-next v2 2/2] selftests/bpf: verify bpf_get_netns_cookie in BPF_PROG_TYPE_CGROUP_SOCKOPT
From: Stanislav Fomichev <hidden>
Date: 2021-08-12 15:30:23
Also in:
bpf
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [selftests] (test runners & infrastructure), kernel selftest framework, the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Shuah Khan, Shuah Khan, Linus Torvalds
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 <redacted> --- 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