diff options
| author | Hao Luo <haoluo@google.com> | 2022-08-17 01:40:12 +0200 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-08-17 18:42:07 +0200 |
| commit | 738a2f2f9130f98f92ccb3efd94d4879c0a0990c (patch) | |
| tree | f59098cb9084556a110c7a27850f5d85929ae774 | |
| parent | libbpf: Allows disabling auto attach (diff) | |
| download | linux-738a2f2f9130f98f92ccb3efd94d4879c0a0990c.tar.xz linux-738a2f2f9130f98f92ccb3efd94d4879c0a0990c.zip | |
selftests/bpf: Tests libbpf autoattach APIs
Adds test for libbpf APIs that toggle bpf program auto-attaching.
Signed-off-by: Hao Luo <haoluo@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220816234012.910255-2-haoluo@google.com
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/autoattach.c | 30 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_autoattach.c | 23 |
2 files changed, 53 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/autoattach.c b/tools/testing/selftests/bpf/prog_tests/autoattach.c new file mode 100644 index 000000000000..dc5e01d279bd --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/autoattach.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2022 Google */ + +#include <test_progs.h> +#include "test_autoattach.skel.h" + +void test_autoattach(void) +{ + struct test_autoattach *skel; + + skel = test_autoattach__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open_and_load")) + goto cleanup; + + /* disable auto-attach for prog2 */ + bpf_program__set_autoattach(skel->progs.prog2, false); + ASSERT_TRUE(bpf_program__autoattach(skel->progs.prog1), "autoattach_prog1"); + ASSERT_FALSE(bpf_program__autoattach(skel->progs.prog2), "autoattach_prog2"); + if (!ASSERT_OK(test_autoattach__attach(skel), "skel_attach")) + goto cleanup; + + usleep(1); + + ASSERT_TRUE(skel->bss->prog1_called, "attached_prog1"); + ASSERT_FALSE(skel->bss->prog2_called, "attached_prog2"); + +cleanup: + test_autoattach__destroy(skel); +} + diff --git a/tools/testing/selftests/bpf/progs/test_autoattach.c b/tools/testing/selftests/bpf/progs/test_autoattach.c new file mode 100644 index 000000000000..11a44493ebce --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_autoattach.c @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2022 Google */ + +#include "vmlinux.h" +#include <bpf/bpf_tracing.h> + +bool prog1_called = false; +bool prog2_called = false; + +SEC("raw_tp/sys_enter") +int prog1(const void *ctx) +{ + prog1_called = true; + return 0; +} + +SEC("raw_tp/sys_exit") +int prog2(const void *ctx) +{ + prog2_called = true; + return 0; +} + |