IFLA_NETKIT_PEER_INFO
if (data[IFLA_NETKIT_PEER_INFO]) {
attr = data[IFLA_NETKIT_PEER_INFO];
{ IFLA_NETKIT_PEER_INFO, "peer info" },
[IFLA_NETKIT_PEER_INFO] = { .len = sizeof(struct ifinfomsg) },
.peer_type = IFLA_NETKIT_PEER_INFO,
peer_info = addattr_nest(&req.n, sizeof(req), IFLA_NETKIT_PEER_INFO);