| // 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; |
| } |
