prevent deletion devices that are part of the current configuration

[project/netifd.git] / device.h

diff --git a/device.h b/device.h
index 63ffb21..176d1ef 100644 (file)
--- a/device.h
+++ b/device.h
@@ -19,6 +19,12 @@ enum {
        __DEV_ATTR_MAX,
 };
 
+enum dev_change_type {
+       DEV_CONFIG_NO_CHANGE,
+       DEV_CONFIG_APPLIED,
+       DEV_CONFIG_RECREATE,
+};
+
 struct device_type {
        struct list_head list;
        const char *name;
@@ -26,6 +32,8 @@ struct device_type {
        const struct config_param_list *config_params;
 
        struct device *(*create)(struct blob_attr *attr);
+       void (*config_init)(struct device *);
+       enum dev_change_type (*reload)(struct device *, struct blob_attr *);
        void (*dump_status)(struct device *, struct blob_buf *buf);
        int (*check_state)(struct device *);
        void (*free)(struct device *);
@@ -37,42 +45,6 @@ enum {
        DEV_OPT_TXQUEUELEN      = (1 << 2)
 };
 
-enum device_addr_flags {
-       /* address family for routes and addresses */
-       DEVADDR_INET4   = (0 << 0),
-       DEVADDR_INET6   = (1 << 0),
-       DEVADDR_FAMILY  = DEVADDR_INET4 | DEVADDR_INET6,
-
-       /* device route (no gateway) */
-       DEVADDR_DEVICE  = (1 << 1),
-};
-
-union if_addr {
-       struct in_addr in;
-       struct in6_addr in6;
-};
-
-struct device_addr {
-       struct list_head list;
-       void *ctx;
-
-       enum device_addr_flags flags;
-
-       unsigned int mask;
-       union if_addr addr;
-};
-
-struct device_route {
-       struct list_head list;
-       void *ctx;
-
-       enum device_addr_flags flags;
-
-       unsigned int mask;
-       union if_addr addr;
-       union if_addr nexthop;
-};
-
 /* 
  * link layer device. typically represents a linux network device.
  * can be used to support VLANs as well
@@ -86,9 +58,14 @@ struct device {
        char ifname[IFNAMSIZ + 1];
        int ifindex;
 
+       struct blob_attr *config;
+       bool config_pending;
        bool present;
        int active;
 
+       bool current_config;
+       bool default_config;
+
        /* set interface up or down */
        device_state_cb set_state;
 
@@ -100,8 +77,6 @@ struct device {
        unsigned int mtu;
        unsigned int txqueuelen;
        uint8_t macaddr[6];
-
-       uint32_t config_hash;
 };
 
 /* events broadcasted to all users of a device */
@@ -138,7 +113,13 @@ 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;
 
+struct device *device_create(const char *name, const struct device_type *type,
+                            struct blob_attr *config);
 void device_init_settings(struct device *dev, struct blob_attr **tb);
+void device_init_pending(void);
+
+void device_reset_config(void);
+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);
@@ -150,7 +131,7 @@ void device_remove_user(struct device_user *dep);
 void device_set_present(struct device *dev, bool state);
 int device_claim(struct device_user *dep);
 void device_release(struct device_user *dep);
-int check_device_state(struct device *dev);
+int device_check_state(struct device *dev);
 
 static inline void
 device_free(struct device *dev)
@@ -158,7 +139,7 @@ device_free(struct device *dev)
        dev->type->free(dev);
 }
 
-void device_free_all(void);
+void device_free_unused(struct device *dev);
 
 struct device *get_vlan_device_chain(const char *ifname, bool create);