src/network/networkd-dhcp-common.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <netinet/in.h>
   5
   6 #include "dhcp-duid-internal.h"
   7 #include "in-addr-util.h"
   8 #include "networkd-forward.h"
   9
  10 /* Special values for *_uplink_index. */
  11 #define UPLINK_INDEX_AUTO  0 /* uplink will be selected automatically */
  12 #define UPLINK_INDEX_NONE -1 /* uplink will not be selected automatically */
  13 #define UPLINK_INDEX_SELF -2 /* the interface itself is uplink */
  14
  15 #define DHCP_ROUTE_METRIC 1024
  16 #define IPV6RA_ROUTE_METRIC_HIGH    512
  17 #define IPV6RA_ROUTE_METRIC_MEDIUM 1024
  18 #define IPV6RA_ROUTE_METRIC_LOW    2048
  19 #define DHCP6PD_ROUTE_METRIC 256
  20
  21 typedef enum DHCPOptionDataType {
  22         DHCP_OPTION_DATA_UINT8,
  23         DHCP_OPTION_DATA_UINT16,
  24         DHCP_OPTION_DATA_UINT32,
  25         DHCP_OPTION_DATA_STRING,
  26         DHCP_OPTION_DATA_IPV4ADDRESS,
  27         DHCP_OPTION_DATA_IPV6ADDRESS,
  28         _DHCP_OPTION_DATA_MAX,
  29         _DHCP_OPTION_DATA_INVALID,
  30 } DHCPOptionDataType;
  31
  32 typedef struct DUID {
  33         /* Value of Type in [DHCP] section */
  34         DUIDType type;
  35
  36         uint8_t raw_data_len;
  37         uint8_t raw_data[MAX_DUID_DATA_LEN];
  38         usec_t llt_time;
  39         bool set;
  40 } DUID;
  41
  42 uint32_t link_get_dhcp4_route_table(Link *link);
  43 uint32_t link_get_ndisc_route_table(Link *link);
  44
  45 bool link_dhcp_enabled(Link *link, int family);
  46 static inline bool link_dhcp4_enabled(Link *link) {
  47         return link_dhcp_enabled(link, AF_INET);
  48 }
  49 static inline bool link_dhcp6_enabled(Link *link) {
  50         return link_dhcp_enabled(link, AF_INET6);
  51 }
  52
  53 void network_adjust_dhcp(Network *network);
  54
  55 const DUID *link_get_duid(Link *link, int family);
  56 static inline const DUID *link_get_dhcp4_duid(Link *link) {
  57         return link_get_duid(link, AF_INET);
  58 }
  59 static inline const DUID *link_get_dhcp6_duid(Link *link) {
  60         return link_get_duid(link, AF_INET6);
  61 }
  62
  63 int dhcp_configure_duid(Link *link, const DUID *duid);
  64 int manager_request_product_uuid(Manager *m);
  65
  66 bool address_is_filtered(int family, const union in_addr_union *address, uint8_t prefixlen, Set *allow_list, Set *deny_list);
  67 static inline bool in4_address_is_filtered(const struct in_addr *address, Set *allow_list, Set *deny_list) {
  68         return address_is_filtered(AF_INET, &(union in_addr_union) { .in = *address }, 32, allow_list, deny_list);
  69 }
  70 static inline bool in6_prefix_is_filtered(const struct in6_addr *prefix, uint8_t prefixlen, Set *allow_list, Set *deny_list) {
  71         return address_is_filtered(AF_INET6, &(union in_addr_union) { .in6 = *prefix }, prefixlen, allow_list, deny_list);
  72 }
  73
  74 int link_get_captive_portal(Link *link, const char **ret);
  75
  76 const char* dhcp_option_data_type_to_string(DHCPOptionDataType d) _const_;
  77 DHCPOptionDataType dhcp_option_data_type_from_string(const char *d) _pure_;
  78
  79 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp);
  80 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_route_metric);
  81 CONFIG_PARSER_PROTOTYPE(config_parse_ndisc_route_metric);
  82 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_send_hostname);
  83 CONFIG_PARSER_PROTOTYPE(config_parse_iaid);
  84 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_or_ra_route_table);
  85 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_user_or_vendor_class);
  86 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_send_option);
  87 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_request_options);
  88 CONFIG_PARSER_PROTOTYPE(config_parse_duid_type);
  89 CONFIG_PARSER_PROTOTYPE(config_parse_manager_duid_type);
  90 CONFIG_PARSER_PROTOTYPE(config_parse_network_duid_type);
  91 CONFIG_PARSER_PROTOTYPE(config_parse_duid_rawdata);
  92 CONFIG_PARSER_PROTOTYPE(config_parse_manager_duid_rawdata);
  93 CONFIG_PARSER_PROTOTYPE(config_parse_network_duid_rawdata);
  94 CONFIG_PARSER_PROTOTYPE(config_parse_uplink);