WGDEVICE_A_IFNAME
static const struct nla_policy wireguard_get_device_nl_policy[WGDEVICE_A_IFNAME + 1] = {
[WGDEVICE_A_IFNAME] = { .type = NLA_NUL_STRING, .len = 15, },
[WGDEVICE_A_IFNAME] = { .type = NLA_NUL_STRING, .len = 15, },
.maxattr = WGDEVICE_A_IFNAME,
nla_put_string(skb, WGDEVICE_A_IFNAME, wg->dev->name))
if (!attrs[WGDEVICE_A_IFINDEX] == !attrs[WGDEVICE_A_IFNAME])
else if (attrs[WGDEVICE_A_IFNAME])
nla_data(attrs[WGDEVICE_A_IFNAME]));