| // SPDX-License-Identifier: GPL-2.0 | |
| #include "vmlinux.h" | |
| #include <bpf/bpf_helpers.h> | |
| #include "bpf_misc.h" | |
| SEC("tc/ingress") | |
| __description("uninit/mtu: write rejected") | |
| __failure __msg("invalid indirect read from stack") | |
| int tc_uninit_mtu(struct __sk_buff *ctx) | |
| { | |
| __u32 mtu; | |
| bpf_check_mtu(ctx, 0, &mtu, 0, 0); | |
| return TCX_PASS; | |
| } | |
| char LICENSE[] SEC("license") = "GPL"; |