10 struct device_user dep;
12 device_state_cb set_state;
16 static void free_vlan_if(struct device *iface)
18 struct vlan_device *vldev;
20 vldev = container_of(iface, struct vlan_device, dev);
21 device_remove_user(&vldev->dep);
22 device_cleanup(&vldev->dev);
26 static int vlan_set_device_state(struct device *dev, bool up)
28 struct vlan_device *vldev;
31 vldev = container_of(dev, struct vlan_device, dev);
33 vldev->set_state(dev, false);
35 device_release(&vldev->dep);
39 ret = device_claim(&vldev->dep);
43 system_vlan_add(vldev->dep.dev, vldev->id);
44 ret = vldev->set_state(dev, true);
46 device_release(&vldev->dep);
51 static void vlan_dev_cb(struct device_user *dep, enum device_event ev)
53 struct vlan_device *vldev;
55 vldev = container_of(dep, struct vlan_device, dep);
58 device_set_present(&vldev->dev, true);
60 case DEV_EVENT_REMOVE:
61 device_set_present(&vldev->dev, false);
68 static struct device *get_vlan_device(struct device *dev, int id, bool create)
70 static const struct device_type vlan_type = {
74 struct vlan_device *vldev;
75 struct device_user *dep;
77 /* look for an existing interface before creating a new one */
78 list_for_each_entry(dep, &dev->users, list) {
79 if (dep->cb != vlan_dev_cb)
82 vldev = container_of(dep, struct vlan_device, dep);
92 vldev = calloc(1, sizeof(*vldev));
93 snprintf(vldev->dev.ifname, IFNAMSIZ, "%s.%d", dev->ifname, id);
95 device_init(&vldev->dev, &vlan_type, NULL);
97 vldev->set_state = vldev->dev.set_state;
98 vldev->dev.set_state = vlan_set_device_state;
102 vldev->dep.cb = vlan_dev_cb;
103 device_add_user(&vldev->dep, dev);
108 static char *split_vlan(char *s)
121 struct device *get_vlan_device_chain(const char *ifname, bool create)
123 struct device *iface = NULL;
124 char *buf, *s, *next, *err = NULL;
127 buf = strdup(ifname);
132 iface = device_get(buf, create);
133 if (!iface && !create)
137 next = split_vlan(s);
138 id = strtoul(s, &err, 10);
142 iface = get_vlan_device(iface, id, create);