static void alias_device_cb(struct device_user *dep, enum device_event ev)
{
struct alias_device *alias;
bool new_state = false;
alias = container_of(dep, struct alias_device, dep);
switch (ev) {
case DEV_EVENT_ADD:
new_state = true;
case DEV_EVENT_REMOVE:
device_set_present(&alias->dev, new_state);
break;
case DEV_EVENT_LINK_UP:
new_state = true;
case DEV_EVENT_LINK_DOWN:
device_set_link(&alias->dev, new_state);
break;
case DEV_EVENT_UPDATE_IFINDEX:
device_set_ifindex(&alias->dev, dep->dev->ifindex);
break;
default:
device_broadcast_event(&alias->dev, ev);
break;
}
}
static void alias_set_device(struct alias_device *alias, struct device *dev)
{
if (dev == alias->dep.dev)
return;
device_set_present(&alias->dev, false);
device_remove_user(&alias->new_dep);
if (alias->dev.active) {
if (dev)
device_add_user(&alias->new_dep, dev);
alias->update = true;
return;
}
alias->update = false;
device_remove_user(&alias->dep);
alias->dev.hidden = !dev;
if (dev) {
device_set_ifindex(&alias->dev, dev->ifindex);
strcpy(alias->dev.ifname, dev->ifname);
device_broadcast_event(&alias->dev, DEV_EVENT_UPDATE_IFNAME);
device_add_user(&alias->dep, dev);
} else {
alias->dev.ifname[0] = 0;
device_broadcast_event(&alias->dev, DEV_EVENT_UPDATE_IFNAME);
}
}
int system_if_check(struct device *dev)
{
dev->ifindex = 0;
device_set_present(dev, true);
device_set_link(dev, true);
return 0;
}
