| // SPDX-License-Identifier: GPL-2.0 |
| #include "vmlinux.h" |
| #include <bpf/bpf_helpers.h> |
| |
| /* |
| * Minimal, map-less program. Driven through libbpf's gen_loader (gen_hash) |
| * by prog_tests/signed_loader.c so the generated light-skeleton loader can be |
| * exercised against good and tampered metadata, which the kernel now verifies |
| * at load time via the insns||metadata signature. A socket filter needs no |
| * load-time attach resolution, and having no maps keeps the generated loader's |
| * ctx trivial (0 maps, 1 prog). |
| */ |
| SEC("socket") |
| int probe(void *ctx) |
| { |
| return 0; |
| } |
| |
| char _license[] SEC("license") = "GPL"; |
