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| author | Mahe Tardy <mahe.tardy@gmail.com> | 2024-11-25 18:26:03 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-12-02 19:41:17 +0300 |
| commit | 9aef3aaa7059c4dd0cc875107e05bb3198a7fc33 (patch) | |
| tree | ae7e2e48c81ba1f6e8c0b96b33ddcbdcd82cd7e3 /tools/testing/selftests/bpf/prog_tests | |
| parent | ed3e469d021cba343a3b32f0876f8f28b1d9bfdd (diff) | |
| download | linux-9aef3aaa7059c4dd0cc875107e05bb3198a7fc33.tar.xz | |
selftests/bpf: add cgroup skb direct packet access test
This verifies that programs of BPF_PROG_TYPE_CGROUP_SKB can access
skb->data_end with direct packet access when being run with
BPF_PROG_TEST_RUN.
Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com>
Link: https://lore.kernel.org/r/20241125152603.375898-2-mahe.tardy@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/cgroup_skb_direct_packet_access.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_skb_direct_packet_access.c b/tools/testing/selftests/bpf/prog_tests/cgroup_skb_direct_packet_access.c new file mode 100644 index 000000000000..e1a90c10db8c --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/cgroup_skb_direct_packet_access.c @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <test_progs.h> +#include "cgroup_skb_direct_packet_access.skel.h" + +void test_cgroup_skb_prog_run_direct_packet_access(void) +{ + int err; + struct cgroup_skb_direct_packet_access *skel; + char test_skb[64] = {}; + + LIBBPF_OPTS(bpf_test_run_opts, topts, + .data_in = test_skb, + .data_size_in = sizeof(test_skb), + ); + + skel = cgroup_skb_direct_packet_access__open_and_load(); + if (!ASSERT_OK_PTR(skel, "cgroup_skb_direct_packet_access__open_and_load")) + return; + + err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.direct_packet_access), &topts); + ASSERT_OK(err, "bpf_prog_test_run_opts err"); + ASSERT_EQ(topts.retval, 1, "retval"); + + ASSERT_NEQ(skel->bss->data_end, 0, "data_end"); + + cgroup_skb_direct_packet_access__destroy(skel); +} |