src/network/networkd-address.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <inttypes.h>
   5 #include <stdbool.h>
   6 #include <stdio.h>
   7
   8 #include "sd-ipv4acd.h"
   9
  10 #include "conf-parser.h"
  11 #include "in-addr-util.h"
  12 #include "networkd-link.h"
  13 #include "networkd-util.h"
  14
  15 #define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU
  16
  17 typedef struct Manager Manager;
  18 typedef struct Network Network;
  19 typedef int (*address_ready_callback_t)(Address *address);
  20
  21 typedef struct Address {
  22         Network *network;
  23         NetworkConfigSection *section;
  24
  25         Link *link;
  26
  27         int family;
  28         unsigned char prefixlen;
  29         unsigned char scope;
  30         uint32_t flags;
  31         char *label;
  32
  33         struct in_addr broadcast;
  34         struct ifa_cacheinfo cinfo;
  35
  36         union in_addr_union in_addr;
  37         union in_addr_union in_addr_peer;
  38
  39         bool scope_set:1;
  40         bool ip_masquerade_done:1;
  41         bool ipv6_masquerade_done:1;
  42         AddressFamily duplicate_address_detection;
  43
  44         /* Called when address become ready */
  45         address_ready_callback_t callback;
  46
  47         sd_ipv4acd *acd;
  48 } Address;
  49
  50 int address_new(Address **ret);
  51 Address *address_free(Address *address);
  52 int address_get(Link *link, const Address *in, Address **ret);
  53 int address_configure(const Address *address, Link *link, link_netlink_message_handler_t callback, Address **ret);
  54 int address_remove(const Address *address, Link *link, link_netlink_message_handler_t callback);
  55 bool address_equal(const Address *a1, const Address *a2);
  56 bool address_is_ready(const Address *a);
  57
  58 int generate_ipv6_eui_64_address(const Link *link, struct in6_addr *ret);
  59
  60 DEFINE_NETWORK_SECTION_FUNCTIONS(Address, address_free);
  61
  62 int link_set_addresses(Link *link);
  63 int link_drop_addresses(Link *link);
  64 int link_drop_foreign_addresses(Link *link);
  65 bool link_address_is_dynamic(const Link *link, const Address *address);
  66 int link_has_ipv6_address(Link *link, const struct in6_addr *address);
  67
  68 void ipv4_dad_unref(Link *link);
  69 int ipv4_dad_stop(Link *link);
  70 int ipv4_dad_update_mac(Link *link);
  71
  72 int manager_rtnl_process_address(sd_netlink *nl, sd_netlink_message *message, Manager *m);
  73
  74 void network_drop_invalid_addresses(Network *network);
  75
  76 void address_hash_func(const Address *a, struct siphash *state);
  77 int address_compare_func(const Address *a1, const Address *a2);
  78 extern const struct hash_ops address_hash_ops;
  79
  80 CONFIG_PARSER_PROTOTYPE(config_parse_address);
  81 CONFIG_PARSER_PROTOTYPE(config_parse_broadcast);
  82 CONFIG_PARSER_PROTOTYPE(config_parse_label);
  83 CONFIG_PARSER_PROTOTYPE(config_parse_lifetime);
  84 CONFIG_PARSER_PROTOTYPE(config_parse_address_flags);
  85 CONFIG_PARSER_PROTOTYPE(config_parse_address_scope);
  86 CONFIG_PARSER_PROTOTYPE(config_parse_duplicate_address_detection);
  87
  88 #define IPV4_ADDRESS_FMT_STR     "%u.%u.%u.%u"
  89 #define IPV4_ADDRESS_FMT_VAL(address)              \
  90         be32toh((address).s_addr) >> 24,           \
  91         (be32toh((address).s_addr) >> 16) & 0xFFu, \
  92         (be32toh((address).s_addr) >> 8) & 0xFFu,  \
  93         be32toh((address).s_addr) & 0xFFu