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