interface-ip.h

   1 /*
   2  * netifd - network interface daemon
   3  * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14 #ifndef __INTERFACE_IP_H
  15 #define __INTERFACE_IP_H
  16
  17 #include "interface.h"
  18
  19 enum device_addr_flags {
  20         /* address family for routes and addresses */
  21         DEVADDR_INET4           = (0 << 0),
  22         DEVADDR_INET6           = (1 << 0),
  23         DEVADDR_FAMILY          = DEVADDR_INET4 | DEVADDR_INET6,
  24
  25         /* externally added address */
  26         DEVADDR_EXTERNAL        = (1 << 2),
  27
  28         /* route overrides the default interface metric */
  29         DEVROUTE_METRIC         = (1 << 3),
  30
  31         /* route overrides the default interface mtu */
  32         DEVROUTE_MTU            = (1 << 4),
  33
  34         /* route automatically added by kernel */
  35         DEVADDR_KERNEL          = (1 << 5),
  36 };
  37
  38 union if_addr {
  39         struct in_addr in;
  40         struct in6_addr in6;
  41 };
  42
  43 struct device_addr {
  44         struct vlist_node node;
  45         bool enabled;
  46
  47         /* ipv4 only */
  48         uint32_t broadcast;
  49         uint32_t point_to_point;
  50
  51         /* must be last */
  52         enum device_addr_flags flags;
  53         unsigned int mask;
  54         union if_addr addr;
  55 };
  56
  57 struct device_route {
  58         struct vlist_node node;
  59         struct interface *iface;
  60
  61         bool enabled;
  62         bool keep;
  63
  64         union if_addr nexthop;
  65         int metric;
  66         int mtu;
  67
  68         /* must be last */
  69         enum device_addr_flags flags;
  70         unsigned int mask;
  71         union if_addr addr;
  72 };
  73
  74 struct dns_server {
  75         struct vlist_simple_node node;
  76         int af;
  77         union if_addr addr;
  78 };
  79
  80 struct dns_search_domain {
  81         struct vlist_simple_node node;
  82         char name[];
  83 };
  84
  85 extern const struct config_param_list route_attr_list;
  86
  87 void interface_ip_init(struct interface *iface);
  88 void interface_add_dns_server(struct interface_ip_settings *ip, const char *str);
  89 void interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list);
  90 void interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list);
  91 void interface_write_resolv_conf(void);
  92
  93 void interface_ip_add_route(struct interface *iface, struct blob_attr *attr, bool v6);
  94
  95 void interface_ip_update_start(struct interface_ip_settings *ip);
  96 void interface_ip_update_complete(struct interface_ip_settings *ip);
  97 void interface_ip_flush(struct interface_ip_settings *ip);
  98 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled);
  99 void interface_ip_update_metric(struct interface_ip_settings *ip, int metric);
 100
 101 struct interface *interface_ip_add_target_route(union if_addr *addr, bool v6);
 102
 103 #endif