interface.h

   1 #ifndef __NETIFD_INTERFACE_H
   2 #define __NETIFD_INTERFACE_H
   3
   4 #include <netinet/in.h>
   5 #include "device.h"
   6
   7 struct interface;
   8 struct interface_proto_state;
   9
  10 enum interface_event {
  11         IFEV_UP,
  12         IFEV_DOWN,
  13 };
  14
  15 enum interface_state {
  16         IFS_SETUP,
  17         IFS_UP,
  18         IFS_TEARDOWN,
  19         IFS_DOWN,
  20 };
  21
  22 struct interface_error {
  23         struct list_head list;
  24
  25         const char *subsystem;
  26         const char *code;
  27         const char *data[];
  28 };
  29
  30 enum interface_addr_flags {
  31         /* address family for routes and addresses */
  32         IFADDR_INET4    = (0 << 0),
  33         IFADDR_INET6    = (1 << 0),
  34         IFADDR_FAMILY   = IFADDR_INET4 | IFADDR_INET6,
  35
  36         /* device route (no gateway) */
  37         IFADDR_DEVICE   = (1 << 1),
  38 };
  39
  40 union if_addr {
  41         struct in_addr in;
  42         struct in6_addr in6;
  43 };
  44
  45 struct interface_addr {
  46         struct list_head list;
  47         void *ctx;
  48
  49         enum interface_addr_flags flags;
  50
  51         unsigned int mask;
  52         union if_addr addr;
  53 };
  54
  55 struct interface_route {
  56         struct list_head list;
  57         void *ctx;
  58
  59         enum interface_addr_flags flags;
  60
  61         unsigned int mask;
  62         union if_addr addr;
  63         union if_addr nexthop;
  64 };
  65
  66 /*
  67  * interface configuration
  68  */
  69 struct interface {
  70         struct list_head list;
  71
  72         char name[IFNAMSIZ];
  73
  74         bool active;
  75         bool autostart;
  76
  77         enum interface_state state;
  78
  79         /* main interface that the interface is bound to */
  80         struct device_user main_dev;
  81
  82         /* interface that layer 3 communication will go through */
  83         struct device_user *l3_iface;
  84
  85         /* primary protocol state */
  86         struct interface_proto_state *proto;
  87
  88         struct list_head address, routes;
  89
  90         /* errors/warnings while trying to bring up the interface */
  91         struct list_head errors;
  92
  93         struct ubus_object ubus;
  94 };
  95
  96 struct interface *get_interface(const char *name);
  97 struct interface *alloc_interface(const char *name, struct uci_section *s);
  98 void free_interface(struct interface *iface);
  99
 100 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state);
 101
 102 int set_interface_up(struct interface *iface);
 103 int set_interface_down(struct interface *iface);
 104
 105 int interface_add_link(struct interface *iface, struct device *llif);
 106 void interface_remove_link(struct interface *iface, struct device *llif);
 107
 108 void interface_add_error(struct interface *iface, const char *subsystem,
 109                          const char *code, const char **data, int n_data);
 110
 111 int interface_attach_bridge(struct interface *iface, struct uci_section *s);
 112
 113 int interface_add_address(struct interface *iface, struct interface_addr *addr);
 114 void interface_del_address(struct interface *iface, struct interface_addr *addr);
 115 void interface_del_ctx_addr(struct interface *iface, void *ctx);
 116
 117 void start_pending_interfaces(void);
 118
 119 #endif