linux/tools/testing/selftests/bpf/progs/cgroup_preorder.c
Yonghong Song 2222aa1c89 selftests/bpf: Add selftests allowing cgroup prog pre-ordering
Add a few selftests with cgroup prog pre-ordering.

Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20250224230121.283601-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-15 11:48:25 -07:00

41 lines
674 B
C

// 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";
unsigned int idx;
__u8 result[4];
SEC("cgroup/getsockopt")
int child(struct bpf_sockopt *ctx)
{
if (idx < 4)
result[idx++] = 1;
return 1;
}
SEC("cgroup/getsockopt")
int child_2(struct bpf_sockopt *ctx)
{
if (idx < 4)
result[idx++] = 2;
return 1;
}
SEC("cgroup/getsockopt")
int parent(struct bpf_sockopt *ctx)
{
if (idx < 4)
result[idx++] = 3;
return 1;
}
SEC("cgroup/getsockopt")
int parent_2(struct bpf_sockopt *ctx)
{
if (idx < 4)
result[idx++] = 4;
return 1;
}