From a024843d92cca491034dac648bcfec967199a4a4 Mon Sep 17 00:00:00 2001 From: Mykyta Yatsenko Date: Mon, 17 Mar 2025 17:40:39 +0000 Subject: 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 Signed-off-by: Andrii Nakryiko Acked-by: Yonghong Song Link: https://lore.kernel.org/bpf/20250317174039.161275-5-mykyta.yatsenko5@gmail.com --- tools/testing/selftests/bpf/progs/priv_freplace_prog.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 tools/testing/selftests/bpf/progs/priv_freplace_prog.c (limited to 'tools/testing/selftests/bpf/progs/priv_freplace_prog.c') 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 + +char _license[] SEC("license") = "GPL"; + +SEC("freplace/xdp_prog1") +int new_xdp_prog2(struct xdp_md *xd) +{ + return XDP_DROP; +} -- cgit v1.2.3