src/network/networkd-ndisc.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include "conf-parser.h"
   5 #include "networkd-link.h"
   6 #include "time-util.h"
   7
   8 typedef struct IPv6Token IPv6Token;
   9
  10 typedef enum IPv6TokenAddressGeneration {
  11         IPV6_TOKEN_ADDRESS_GENERATION_NONE,
  12         IPV6_TOKEN_ADDRESS_GENERATION_STATIC,
  13         IPV6_TOKEN_ADDRESS_GENERATION_PREFIXSTABLE,
  14         _IPV6_TOKEN_ADDRESS_GENERATION_MAX,
  15         _IPV6_TOKEN_ADDRESS_GENERATION_INVALID = -1,
  16 } IPv6TokenAddressGeneration;
  17
  18 typedef enum IPv6AcceptRAStartDHCP6Client {
  19         IPV6_ACCEPT_RA_START_DHCP6_CLIENT_NO,
  20         IPV6_ACCEPT_RA_START_DHCP6_CLIENT_ALWAYS,
  21         IPV6_ACCEPT_RA_START_DHCP6_CLIENT_YES,
  22         _IPV6_ACCEPT_RA_START_DHCP6_CLIENT_MAX,
  23         _IPV6_ACCEPT_RA_START_DHCP6_CLIENT_INVALID = -1,
  24 } IPv6AcceptRAStartDHCP6Client;
  25
  26 typedef struct NDiscRDNSS {
  27         usec_t valid_until;
  28         struct in6_addr address;
  29 } NDiscRDNSS;
  30
  31 typedef struct NDiscDNSSL {
  32         usec_t valid_until;
  33         /* The domain name follows immediately. */
  34 } NDiscDNSSL;
  35
  36 struct IPv6Token {
  37         IPv6TokenAddressGeneration address_generation_type;
  38
  39         uint8_t dad_counter;
  40         struct in6_addr prefix;
  41 };
  42
  43 int ipv6token_new(IPv6Token **ret);
  44 DEFINE_TRIVIAL_CLEANUP_FUNC(IPv6Token *, freep);
  45
  46 static inline char* NDISC_DNSSL_DOMAIN(const NDiscDNSSL *n) {
  47         return ((char*) n) + ALIGN(sizeof(NDiscDNSSL));
  48 }
  49
  50 int ndisc_configure(Link *link);
  51 void ndisc_vacuum(Link *link);
  52 void ndisc_flush(Link *link);
  53
  54 CONFIG_PARSER_PROTOTYPE(config_parse_ndisc_deny_listed_prefix);
  55 CONFIG_PARSER_PROTOTYPE(config_parse_address_generation_type);
  56 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_accept_ra_start_dhcp6_client);
  57
  58 const char* ipv6_accept_ra_start_dhcp6_client_to_string(IPv6AcceptRAStartDHCP6Client i) _const_;
  59 IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client_from_string(const char *s) _pure_;