search for: convert_ctx_access

...t; > + __u16 vnet_rss_queue; > }; we also do not add anything to uapi __sk_buff. > +const struct bpf_verifier_ops vnet_hash_verifier_ops = { > + .get_func_proto = sk_filter_func_proto, > + .is_valid_access = sk_filter_is_valid_access, > + .convert_ctx_access = bpf_convert_ctx_access, > + .gen_ld_abs = bpf_gen_ld_abs, > +}; and we don't do ctx rewrites like this either. Please see how hid-bpf and cgroup rstat are hooking up bpf in _unstable_ way.