FN(getsockopt), \
FN(override_return), \
FN(sock_ops_cb_flags_set), \
- FN(msg_redirect_map),
+ FN(msg_redirect_map), \
+ FN(msg_apply_bytes),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call
.arg4_type = ARG_ANYTHING,
};
+BPF_CALL_2(bpf_msg_apply_bytes, struct sk_msg_buff *, msg, u32, bytes)
+{
+ msg->apply_bytes = bytes;
+ return 0;
+}
+
+static const struct bpf_func_proto bpf_msg_apply_bytes_proto = {
+ .func = bpf_msg_apply_bytes,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_PTR_TO_CTX,
+ .arg2_type = ARG_ANYTHING,
+};
+
BPF_CALL_1(bpf_get_cgroup_classid, const struct sk_buff *, skb)
{
return task_get_classid(skb);
switch (func_id) {
case BPF_FUNC_msg_redirect_map:
return &bpf_msg_redirect_map_proto;
+ case BPF_FUNC_msg_apply_bytes:
+ return &bpf_msg_apply_bytes_proto;
default:
return bpf_base_func_proto(func_id);
}