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| author | Mykyta Yatsenko <yatsenko@meta.com> | 2025-03-17 17:40:39 +0000 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2025-03-17 13:45:12 -0700 |
| commit | a024843d92cca491034dac648bcfec967199a4a4 (patch) | |
| tree | 62436d27fd49365a4db2b9fa92065b6aabbca28c /tools/testing/selftests/bpf/progs/priv_freplace_prog.c | |
| parent | libbpf: Pass BPF token from find_prog_btf_id to BPF_BTF_GET_FD_BY_ID (diff) | |
| download | linux-a024843d92cca491034dac648bcfec967199a4a4.tar.gz linux-a024843d92cca491034dac648bcfec967199a4a4.zip | |
selftests/bpf: Test freplace from user namespace
Add selftests to verify that it is possible to load freplace program
from user namespace if BPF token is initialized by bpf_object__prepare
before calling bpf_program__set_attach_target.
Negative test is added as well.
Modified type of the priv_prog to xdp, as kprobe did not work on aarch64
and s390x.
Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/20250317174039.161275-5-mykyta.yatsenko5@gmail.com
Diffstat (limited to 'tools/testing/selftests/bpf/progs/priv_freplace_prog.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/priv_freplace_prog.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/priv_freplace_prog.c b/tools/testing/selftests/bpf/progs/priv_freplace_prog.c new file mode 100644 index 000000000000..ccf1b04010ba --- /dev/null +++ b/tools/testing/selftests/bpf/progs/priv_freplace_prog.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */ + +#include "vmlinux.h" +#include <bpf/bpf_helpers.h> + +char _license[] SEC("license") = "GPL"; + +SEC("freplace/xdp_prog1") +int new_xdp_prog2(struct xdp_md *xd) +{ + return XDP_DROP; +} |