add global interface event notifier

[project/netifd.git] / device.h

diff --git a/device.h b/device.h
index 3d233d7..7454d54 100644 (file)
--- a/device.h
+++ b/device.h
@@ -5,6 +5,7 @@
 #include <netinet/in.h>
 
 struct device;
+struct device_user;
 struct device_hotplug_ops;
 
 typedef int (*device_state_cb)(struct device *, bool up);
@@ -15,12 +16,14 @@ enum {
        DEV_ATTR_MTU,
        DEV_ATTR_MACADDR,
        DEV_ATTR_TXQUEUELEN,
+       DEV_ATTR_ENABLED,
        __DEV_ATTR_MAX,
 };
 
 enum dev_change_type {
        DEV_CONFIG_NO_CHANGE,
        DEV_CONFIG_APPLIED,
+       DEV_CONFIG_RESTART,
        DEV_CONFIG_RECREATE,
 };
 
@@ -45,6 +48,40 @@ enum {
        DEV_OPT_TXQUEUELEN      = (1 << 2)
 };
 
+/* events broadcasted to all users of a device */
+enum device_event {
+       DEV_EVENT_ADD,
+       DEV_EVENT_REMOVE,
+
+       DEV_EVENT_SETUP,
+       DEV_EVENT_TEARDOWN,
+       DEV_EVENT_UP,
+       DEV_EVENT_DOWN,
+
+       DEV_EVENT_LINK_UP,
+       DEV_EVENT_LINK_DOWN,
+};
+
+/*
+ * device dependency with callbacks
+ */
+struct device_user {
+       struct list_head list;
+
+       bool claimed;
+       bool hotplug;
+
+       struct device *dev;
+       void (*cb)(struct device_user *, enum device_event);
+};
+
+struct device_settings {
+       unsigned int flags;
+       unsigned int mtu;
+       unsigned int txqueuelen;
+       uint8_t macaddr[6];
+};
+
 /* 
  * link layer device. typically represents a linux network device.
  * can be used to support VLANs as well
@@ -60,8 +97,11 @@ struct device {
 
        struct blob_attr *config;
        bool config_pending;
+       bool sys_present;
        bool present;
        int active;
+       bool external;
+       bool disabled;
 
        bool current_config;
        bool default_config;
@@ -71,42 +111,14 @@ struct device {
 
        const struct device_hotplug_ops *hotplug_ops;
 
-       /* settings */
-       unsigned int flags;
-
-       unsigned int mtu;
-       unsigned int txqueuelen;
-       uint8_t macaddr[6];
-};
-
-/* events broadcasted to all users of a device */
-enum device_event {
-       DEV_EVENT_ADD,
-       DEV_EVENT_REMOVE,
-
-       DEV_EVENT_SETUP,
-       DEV_EVENT_TEARDOWN,
-       DEV_EVENT_UP,
-       DEV_EVENT_DOWN,
+       struct device_user parent;
 
-       DEV_EVENT_LINK_UP,
-       DEV_EVENT_LINK_DOWN,
-};
-
-/*
- * device dependency with callbacks
- */
-struct device_user {
-       struct list_head list;
-
-       bool claimed;
-       bool hotplug;
-
-       struct device *dev;
-       void (*cb)(struct device_user *, enum device_event);
+       struct device_settings orig_settings;
+       struct device_settings settings;
 };
 
 struct device_hotplug_ops {
+       int (*prepare)(struct device *dev);
        int (*add)(struct device *main, struct device *member);
        int (*del)(struct device *main, struct device *member);
 };
@@ -114,6 +126,7 @@ struct device_hotplug_ops {
 extern const struct config_param_list device_attr_list;
 extern const struct device_type simple_device_type;
 extern const struct device_type bridge_device_type;
+extern const struct device_type tunnel_device_type;
 
 void device_lock(void);
 void device_unlock(void);
@@ -133,22 +146,18 @@ void device_reset_old(void);
 void device_init_virtual(struct device *dev, const struct device_type *type, const char *name);
 int device_init(struct device *iface, const struct device_type *type, const char *ifname);
 void device_cleanup(struct device *iface);
-struct device *device_get(const char *name, bool create);
+struct device *device_get(const char *name, int create);
 void device_add_user(struct device_user *dep, struct device *iface);
 void device_remove_user(struct device_user *dep);
 
 void device_set_present(struct device *dev, bool state);
+void device_set_disabled(struct device *dev, bool value);
 int device_claim(struct device_user *dep);
 void device_release(struct device_user *dep);
 int device_check_state(struct device *dev);
 void device_dump_status(struct blob_buf *b, struct device *dev);
 
-static inline void
-device_free(struct device *dev)
-{
-       dev->type->free(dev);
-}
-
+void device_free(struct device *dev);
 void device_free_unused(struct device *dev);
 
 struct device *get_vlan_device_chain(const char *ifname, bool create);