device: protect device event broadcast against simultaneous deletions of multiple...

[project/netifd.git] / device.h

diff --git a/device.h b/device.h
index d41042b..1f852ab 100644 (file)
--- a/device.h
+++ b/device.h
@@ -66,6 +66,8 @@ enum device_event {
        DEV_EVENT_ADD,
        DEV_EVENT_REMOVE,
 
+       DEV_EVENT_UPDATE_IFNAME,
+
        DEV_EVENT_SETUP,
        DEV_EVENT_TEARDOWN,
        DEV_EVENT_UP,
@@ -73,6 +75,8 @@ enum device_event {
 
        DEV_EVENT_LINK_UP,
        DEV_EVENT_LINK_DOWN,
+
+       __DEV_EVENT_MAX
 };
 
 /*
@@ -83,6 +87,9 @@ struct device_user {
 
        bool claimed;
        bool hotplug;
+       bool alias;
+
+       uint8_t ev_idx[__DEV_EVENT_MAX];
 
        struct device *dev;
        void (*cb)(struct device_user *, enum device_event);
@@ -104,6 +111,7 @@ struct device {
 
        struct avl_node avl;
        struct list_head users;
+       struct list_head aliases;
 
        char ifname[IFNAMSIZ + 1];
        int ifindex;
@@ -113,8 +121,11 @@ struct device {
        bool sys_present;
        bool present;
        int active;
+
        bool external;
        bool disabled;
+       bool deferred;
+       bool hidden;
 
        bool current_config;
        bool default_config;
@@ -162,9 +173,10 @@ void device_cleanup(struct device *iface);
 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_broadcast_event(struct device *dev, enum device_event ev);
 
 void device_set_present(struct device *dev, bool state);
-void device_set_disabled(struct device *dev, bool value);
+void device_refresh_present(struct device *dev);
 int device_claim(struct device_user *dep);
 void device_release(struct device_user *dep);
 int device_check_state(struct device *dev);
@@ -175,5 +187,20 @@ void device_free_unused(struct device *dev);
 
 struct device *get_vlan_device_chain(const char *ifname, bool create);
 void alias_notify_device(const char *name, struct device *dev);
+struct device *device_alias_get(const char *name);
+
+static inline void
+device_set_deferred(struct device *dev, bool value)
+{
+       dev->deferred = value;
+       device_refresh_present(dev);
+}
+
+static inline void
+device_set_disabled(struct device *dev, bool value)
+{
+       dev->disabled = value;
+       device_refresh_present(dev);
+}
 
 #endif