interface.h

   1 #ifndef __NETIFD_INTERFACE_H
   2 #define __NETIFD_INTERFACE_H
   3
   4 #include "device.h"
   5 #include "config.h"
   6
   7 struct interface;
   8 struct interface_proto_state;
   9
  10 enum interface_event {
  11         IFEV_DOWN,
  12         IFEV_UP,
  13         IFEV_FREE,
  14 };
  15
  16 enum interface_state {
  17         IFS_SETUP,
  18         IFS_UP,
  19         IFS_TEARDOWN,
  20         IFS_DOWN,
  21 };
  22
  23 enum interface_config_state {
  24         IFC_NORMAL,
  25         IFC_RELOAD,
  26         IFC_REMOVE
  27 };
  28
  29 struct interface_error {
  30         struct list_head list;
  31
  32         const char *subsystem;
  33         const char *code;
  34         const char *data[];
  35 };
  36
  37 struct interface_user {
  38         struct list_head list;
  39         struct interface *iface;
  40         void (*cb)(struct interface_user *dep, struct interface *iface, enum interface_event ev);
  41 };
  42
  43 struct interface_ip_settings {
  44         struct interface *iface;
  45         bool enabled;
  46         bool no_defaultroute;
  47
  48         struct vlist_tree addr;
  49         struct vlist_tree route;
  50
  51         struct vlist_simple_tree dns_servers;
  52         struct vlist_simple_tree dns_search;
  53 };
  54
  55 struct interface_data {
  56         struct avl_node node;
  57         struct blob_attr data[];
  58 };
  59
  60 /*
  61  * interface configuration
  62  */
  63 struct interface {
  64         struct vlist_node node;
  65         struct list_head hotplug_list;
  66         enum interface_event hotplug_ev;
  67
  68         char name[IFNAMSIZ];
  69         const char *ifname;
  70
  71         bool available;
  72         bool autostart;
  73         bool config_autostart;
  74
  75         time_t start_time;
  76         enum interface_state state;
  77         enum interface_config_state config_state;
  78
  79         struct list_head users;
  80
  81         /* main interface that the interface is bound to */
  82         struct device_user main_dev;
  83
  84         /* interface that layer 3 communication will go through */
  85         struct device_user l3_dev;
  86
  87         struct blob_attr *config;
  88
  89         /* primary protocol state */
  90         const struct proto_handler *proto_handler;
  91         struct interface_proto_state *proto;
  92
  93         struct interface_ip_settings proto_ip;
  94         struct interface_ip_settings config_ip;
  95         struct vlist_tree host_routes;
  96
  97         int metric;
  98
  99         /* errors/warnings while trying to bring up the interface */
 100         struct list_head errors;
 101
 102         /* extra data provided by protocol handlers or modules */
 103         struct avl_tree data;
 104
 105         struct uloop_timeout remove_timer;
 106         struct ubus_object ubus;
 107 };
 108
 109 extern struct vlist_tree interfaces;
 110 extern const struct config_param_list interface_attr_list;
 111
 112 void interface_init(struct interface *iface, const char *name,
 113                     struct blob_attr *config);
 114
 115 void interface_add(struct interface *iface, struct blob_attr *config);
 116
 117 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state);
 118
 119 void interface_set_available(struct interface *iface, bool new_state);
 120 int interface_set_up(struct interface *iface);
 121 int interface_set_down(struct interface *iface);
 122 void __interface_set_down(struct interface *iface, bool force);
 123
 124 void interface_set_main_dev(struct interface *iface, struct device *dev);
 125 void interface_set_l3_dev(struct interface *iface, struct device *dev);
 126
 127 void interface_add_user(struct interface_user *dep, struct interface *iface);
 128 void interface_remove_user(struct interface_user *dep);
 129
 130 int interface_add_link(struct interface *iface, struct device *dev);
 131 int interface_remove_link(struct interface *iface, struct device *dev);
 132
 133 void interface_add_error(struct interface *iface, const char *subsystem,
 134                          const char *code, const char **data, int n_data);
 135
 136 int interface_add_data(struct interface *iface, const struct blob_attr *data);
 137
 138 void interface_update_start(struct interface *iface);
 139 void interface_update_complete(struct interface *iface);
 140
 141 void interface_queue_event(struct interface *iface, enum interface_event ev);
 142 void interface_dequeue_event(struct interface *iface);
 143
 144 void interface_start_pending(void);
 145
 146 #endif