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| author | Jordan Rife <jrife@google.com> | 2024-05-10 22:02:21 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-05-13 03:10:41 +0300 |
| commit | 5a047b2226c0511d4528d1467dc90f08fffafc38 (patch) | |
| tree | 97c820a06655716e8ae686bec0c0ddc5b7310d72 /tools/testing/selftests | |
| parent | 5eff48f33fb733de9b88a5381e0428f3e873c670 (diff) | |
| download | linux-5a047b2226c0511d4528d1467dc90f08fffafc38.tar.xz | |
selftests/bpf: Handle ATTACH_REJECT test cases
In preparation to move test cases from bpf/test_sock_addr.c that expect
ATTACH_REJECT, this patch adds BPF_SKEL_FUNCS_RAW to generate load and
destroy functions that use bpf_prog_attach() to control the attach_type.
The normal load functions use bpf_program__attach_cgroup which does not
have the same degree of control over the attach type, as
bpf_program_attach_fd() calls bpf_link_create() with the attach type
extracted from prog using bpf_program__expected_attach_type(). It is
currently not possible to modify the attach type before
bpf_program__attach_cgroup() is called, since
bpf_program__set_expected_attach_type() has no effect after the program
is loaded.
Signed-off-by: Jordan Rife <jrife@google.com>
Link: https://lore.kernel.org/r/20240510190246.3247730-5-jrife@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/sock_addr.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_addr.c b/tools/testing/selftests/bpf/prog_tests/sock_addr.c index 3033641fd756..53440458f365 100644 --- a/tools/testing/selftests/bpf/prog_tests/sock_addr.c +++ b/tools/testing/selftests/bpf/prog_tests/sock_addr.c @@ -367,6 +367,38 @@ struct sock_addr_test { } expected_result; }; +#define BPF_SKEL_FUNCS_RAW(skel_name, prog_name) \ +static void *prog_name##_load_raw(int cgroup_fd, \ + enum bpf_attach_type attach_type, \ + bool expect_reject) \ +{ \ + struct skel_name *skel = skel_name##__open(); \ + int prog_fd = -1; \ + if (!ASSERT_OK_PTR(skel, "skel_open")) \ + goto cleanup; \ + if (!ASSERT_OK(skel_name##__load(skel), "load")) \ + goto cleanup; \ + prog_fd = bpf_program__fd(skel->progs.prog_name); \ + if (!ASSERT_GT(prog_fd, 0, "prog_fd")) \ + goto cleanup; \ + if (bpf_prog_attach(prog_fd, cgroup_fd, attach_type, \ + BPF_F_ALLOW_OVERRIDE), "bpf_prog_attach") { \ + ASSERT_TRUE(expect_reject, "unexpected rejection"); \ + goto cleanup; \ + } \ + if (!ASSERT_FALSE(expect_reject, "expected rejection")) \ + goto cleanup; \ +cleanup: \ + if (prog_fd > 0) \ + bpf_prog_detach(cgroup_fd, attach_type); \ + skel_name##__destroy(skel); \ + return NULL; \ +} \ +static void prog_name##_destroy_raw(void *progfd) \ +{ \ + /* No-op. *_load_raw does all cleanup. */ \ +} \ + #define BPF_SKEL_FUNCS(skel_name, prog_name) \ static void *prog_name##_load(int cgroup_fd, \ enum bpf_attach_type attach_type, \ @@ -1342,7 +1374,8 @@ void test_sock_addr(void) continue; skel = test->loadfn(cgroup_fd, test->attach_type, - test->expected_result == LOAD_REJECT); + test->expected_result == LOAD_REJECT || + test->expected_result == ATTACH_REJECT); if (!skel) continue; |