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