src/network/networkd-network.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include "sd-dhcp-lease.h"
   5 #include "sd-lldp-tx.h"
   6
   7 #include "bridge.h"
   8 #include "firewall-util.h"
   9 #include "ipoib.h"
  10 #include "net-condition.h"
  11 #include "network-util.h"
  12 #include "networkd-bridge-vlan.h"
  13 #include "networkd-dhcp-common.h"
  14 #include "networkd-dhcp-server.h"
  15 #include "networkd-dhcp4.h"
  16 #include "networkd-dhcp6.h"
  17 #include "networkd-dns.h"
  18 #include "networkd-forward.h"
  19 #include "networkd-ipv6ll.h"
  20 #include "networkd-lldp-rx.h"
  21 #include "networkd-ndisc.h"
  22 #include "networkd-radv.h"
  23 #include "networkd-sysctl.h"
  24 #include "resolve-util.h"
  25
  26 typedef enum KeepConfiguration {
  27         KEEP_CONFIGURATION_NO               = 0,
  28         KEEP_CONFIGURATION_DYNAMIC_ON_START = 1 << 0,
  29         KEEP_CONFIGURATION_DYNAMIC_ON_STOP  = 1 << 1,
  30         KEEP_CONFIGURATION_DYNAMIC          = KEEP_CONFIGURATION_DYNAMIC_ON_START | KEEP_CONFIGURATION_DYNAMIC_ON_STOP,
  31         KEEP_CONFIGURATION_STATIC           = 1 << 2,
  32         KEEP_CONFIGURATION_YES              = KEEP_CONFIGURATION_DYNAMIC | KEEP_CONFIGURATION_STATIC,
  33         _KEEP_CONFIGURATION_MAX,
  34         _KEEP_CONFIGURATION_INVALID         = -EINVAL,
  35 } KeepConfiguration;
  36
  37 typedef enum ActivationPolicy {
  38         ACTIVATION_POLICY_UP,
  39         ACTIVATION_POLICY_ALWAYS_UP,
  40         ACTIVATION_POLICY_MANUAL,
  41         ACTIVATION_POLICY_ALWAYS_DOWN,
  42         ACTIVATION_POLICY_DOWN,
  43         ACTIVATION_POLICY_BOUND,
  44         _ACTIVATION_POLICY_MAX,
  45         _ACTIVATION_POLICY_INVALID = -EINVAL,
  46 } ActivationPolicy;
  47
  48 typedef struct NetworkDHCPServerEmitAddress {
  49         bool emit;
  50         struct in_addr *addresses;
  51         size_t n_addresses;
  52 } NetworkDHCPServerEmitAddress;
  53
  54 typedef struct Network {
  55         Manager *manager;
  56
  57         unsigned n_ref;
  58
  59         char *name;
  60         char *filename;
  61         char **dropins;
  62         Hashmap *stats_by_path;
  63         char *description;
  64
  65         /* [Match] section */
  66         NetMatch match;
  67         LIST_HEAD(Condition, conditions);
  68
  69         /* Master or stacked netdevs */
  70         bool keep_master;
  71         NetDev *batadv;
  72         NetDev *bridge;
  73         NetDev *bond;
  74         NetDev *vrf;
  75         NetDev *xfrm;
  76         Hashmap *stacked_netdevs;
  77         char *batadv_name;
  78         char *bridge_name;
  79         char *bond_name;
  80         char *vrf_name;
  81         Hashmap *stacked_netdev_names;
  82
  83         /* [Link] section */
  84         struct hw_addr_data hw_addr;
  85         uint32_t mtu;
  86         int32_t group;
  87         int arp;
  88         int multicast;
  89         int allmulticast;
  90         int promiscuous;
  91         bool unmanaged;
  92         int required_for_online; /* Is this network required to be considered online? */
  93         LinkOperationalStateRange required_operstate_for_online;
  94         AddressFamily required_family_for_online;
  95         ActivationPolicy activation_policy;
  96
  97         /* misc settings */
  98         bool configure_without_carrier;
  99         bool ignore_carrier_loss_set;
 100         usec_t ignore_carrier_loss_usec; /* timespan */
 101         KeepConfiguration keep_configuration;
 102         char **bind_carrier;
 103         bool default_route_on_device;
 104         AddressFamily ip_masquerade;
 105         usec_t ipv4_dad_timeout_usec;
 106
 107         /* Protocol independent settings */
 108         UseDomains use_domains;
 109
 110         /* For backward compatibility, only applied to DHCPv4 and DHCPv6. */
 111         UseDomains compat_dhcp_use_domains;
 112         int compat_dhcp_use_dns;
 113         int compat_dhcp_use_ntp;
 114
 115         /* DHCP Client Support */
 116         AddressFamily dhcp;
 117         struct in_addr dhcp_request_address;
 118         bool dhcp_use_bootp;
 119         DHCPClientIdentifier dhcp_client_identifier;
 120         DUID dhcp_duid;
 121         uint32_t dhcp_iaid;
 122         bool dhcp_iaid_set;
 123         char *dhcp_vendor_class_identifier;
 124         char *dhcp_mudurl;
 125         char **dhcp_user_class;
 126         char *dhcp_hostname;
 127         char *dhcp_label;
 128         uint64_t dhcp_max_attempts;
 129         uint32_t dhcp_route_metric;
 130         bool dhcp_route_metric_set;
 131         uint32_t dhcp_route_table;
 132         bool dhcp_route_table_set;
 133         usec_t dhcp_fallback_lease_lifetime_usec;
 134         uint32_t dhcp_route_mtu;
 135         uint16_t dhcp_client_port;
 136         uint16_t dhcp_port;
 137         int dhcp_critical;
 138         int dhcp_ip_service_type;
 139         int dhcp_socket_priority;
 140         bool dhcp_socket_priority_set;
 141         bool dhcp_anonymize;
 142         bool dhcp_send_hostname;
 143         bool dhcp_send_hostname_set;
 144         int dhcp_broadcast;
 145         int dhcp_ipv6_only_mode;
 146         int dhcp_use_rapid_commit;
 147         int dhcp_use_dns;
 148         int dhcp_use_dnr;
 149         bool dhcp_routes_to_dns;
 150         int dhcp_use_ntp;
 151         bool dhcp_routes_to_ntp;
 152         bool dhcp_use_sip;
 153         bool dhcp_use_captive_portal;
 154         bool dhcp_use_mtu;
 155         bool dhcp_use_routes;
 156         int dhcp_use_gateway;
 157         bool dhcp_quickack;
 158         uint32_t dhcp_initial_congestion_window;
 159         uint32_t dhcp_advertised_receive_window;
 160         bool dhcp_use_timezone;
 161         bool dhcp_use_hostname;
 162         bool dhcp_use_6rd;
 163         uint8_t dhcp_6rd_prefix_route_type;
 164         bool dhcp_send_release;
 165         bool dhcp_send_decline;
 166         UseDomains dhcp_use_domains;
 167         Set *dhcp_deny_listed_ip;
 168         Set *dhcp_allow_listed_ip;
 169         Set *dhcp_request_options;
 170         OrderedHashmap *dhcp_client_send_options;
 171         OrderedHashmap *dhcp_client_send_vendor_options;
 172         char *dhcp_netlabel;
 173         NFTSetContext dhcp_nft_set_context;
 174
 175         /* DHCPv6 Client support */
 176         bool dhcp6_use_address;
 177         bool dhcp6_use_pd_prefix;
 178         bool dhcp6_send_hostname;
 179         bool dhcp6_send_hostname_set;
 180         int dhcp6_use_dns;
 181         int dhcp6_use_dnr;
 182         bool dhcp6_use_hostname;
 183         int dhcp6_use_ntp;
 184         bool dhcp6_use_captive_portal;
 185         bool dhcp6_use_rapid_commit;
 186         UseDomains dhcp6_use_domains;
 187         uint32_t dhcp6_iaid;
 188         bool dhcp6_iaid_set;
 189         bool dhcp6_iaid_set_explicitly;
 190         DUID dhcp6_duid;
 191         uint8_t dhcp6_pd_prefix_length;
 192         struct in6_addr dhcp6_pd_prefix_hint;
 193         uint8_t dhcp6_pd_prefix_route_type;
 194         char *dhcp6_hostname;
 195         char *dhcp6_mudurl;
 196         char **dhcp6_user_class;
 197         char **dhcp6_vendor_class;
 198         DHCP6ClientStartMode dhcp6_client_start_mode;
 199         OrderedHashmap *dhcp6_client_send_options;
 200         OrderedHashmap *dhcp6_client_send_vendor_options;
 201         Set *dhcp6_request_options;
 202         char *dhcp6_netlabel;
 203         bool dhcp6_send_release;
 204         NFTSetContext dhcp6_nft_set_context;
 205
 206         /* DHCP Server Support */
 207         bool dhcp_server;
 208         bool dhcp_server_bind_to_interface;
 209         unsigned char dhcp_server_address_prefixlen;
 210         struct in_addr dhcp_server_address_in_addr;
 211         const Address *dhcp_server_address;
 212         int dhcp_server_uplink_index;
 213         char *dhcp_server_uplink_name;
 214         struct in_addr dhcp_server_relay_target;
 215         char *dhcp_server_relay_agent_circuit_id;
 216         char *dhcp_server_relay_agent_remote_id;
 217         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 218         bool dhcp_server_emit_router;
 219         struct in_addr dhcp_server_router;
 220         bool dhcp_server_emit_timezone;
 221         char *dhcp_server_timezone;
 222         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 223         uint32_t dhcp_server_pool_offset;
 224         uint32_t dhcp_server_pool_size;
 225         OrderedHashmap *dhcp_server_send_options;
 226         OrderedHashmap *dhcp_server_send_vendor_options;
 227         struct in_addr dhcp_server_boot_server_address;
 228         char *dhcp_server_boot_server_name;
 229         char *dhcp_server_boot_filename;
 230         usec_t dhcp_server_ipv6_only_preferred_usec;
 231         bool dhcp_server_rapid_commit;
 232         DHCPServerPersistLeases dhcp_server_persist_leases;
 233
 234         /* link-local addressing support */
 235         AddressFamily link_local;
 236         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 237         struct in6_addr ipv6ll_stable_secret;
 238         struct in_addr ipv4ll_start_address;
 239         bool ipv4ll_route;
 240
 241         /* IPv6 RA support */
 242         RADVPrefixDelegation router_prefix_delegation;
 243         usec_t router_lifetime_usec;
 244         uint8_t router_preference;
 245         usec_t router_reachable_usec;
 246         usec_t router_retransmit_usec;
 247         uint8_t router_hop_limit;
 248         bool router_managed;
 249         bool router_other_information;
 250         bool router_emit_dns;
 251         bool router_emit_domains;
 252         usec_t router_dns_lifetime_usec;
 253         struct in6_addr *router_dns;
 254         unsigned n_router_dns;
 255         OrderedSet *router_search_domains;
 256         int router_uplink_index;
 257         char *router_uplink_name;
 258         /* Mobile IPv6 Home Agent */
 259         bool router_home_agent_information;
 260         uint16_t router_home_agent_preference;
 261         usec_t home_agent_lifetime_usec;
 262
 263         /* DHCP Prefix Delegation support */
 264         int dhcp_pd;
 265         bool dhcp_pd_announce;
 266         bool dhcp_pd_assign;
 267         bool dhcp_pd_manage_temporary_address;
 268         int64_t dhcp_pd_subnet_id;
 269         uint32_t dhcp_pd_route_metric;
 270         Set *dhcp_pd_tokens;
 271         int dhcp_pd_uplink_index;
 272         char *dhcp_pd_uplink_name;
 273         char *dhcp_pd_netlabel;
 274         NFTSetContext dhcp_pd_nft_set_context;
 275
 276         /* Bridge Support */
 277         int use_bpdu;
 278         int hairpin;
 279         int isolated;
 280         int fast_leave;
 281         int allow_port_to_be_root;
 282         int unicast_flood;
 283         int multicast_flood;
 284         int multicast_to_unicast;
 285         int neighbor_suppression;
 286         int learning;
 287         int bridge_proxy_arp;
 288         int bridge_proxy_arp_wifi;
 289         uint32_t cost;
 290         uint16_t priority;
 291         MulticastRouter multicast_router;
 292         int bridge_locked;
 293         int bridge_mac_authentication_bypass;
 294         int bridge_vlan_tunnel;
 295
 296         /* Bridge VLAN */
 297         uint16_t bridge_vlan_pvid;
 298         uint32_t bridge_vlan_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 299         uint32_t bridge_vlan_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 300
 301         /* CAN support */
 302         uint32_t can_bitrate;
 303         unsigned can_sample_point;
 304         nsec_t can_time_quanta_ns;
 305         uint32_t can_propagation_segment;
 306         uint32_t can_phase_buffer_segment_1;
 307         uint32_t can_phase_buffer_segment_2;
 308         uint32_t can_sync_jump_width;
 309         uint32_t can_data_bitrate;
 310         unsigned can_data_sample_point;
 311         nsec_t can_data_time_quanta_ns;
 312         uint32_t can_data_propagation_segment;
 313         uint32_t can_data_phase_buffer_segment_1;
 314         uint32_t can_data_phase_buffer_segment_2;
 315         uint32_t can_data_sync_jump_width;
 316         usec_t can_restart_us;
 317         uint32_t can_control_mode_mask;
 318         uint32_t can_control_mode_flags;
 319         uint16_t can_termination;
 320         bool can_termination_set;
 321
 322         /* IPoIB support */
 323         IPoIBMode ipoib_mode;
 324         int ipoib_umcast;
 325
 326         /* sysctl settings */
 327         int ip_forwarding[2];
 328         int ipv4_accept_local;
 329         int ipv4_route_localnet;
 330         int ipv6_dad_transmits;
 331         uint8_t ipv6_hop_limit;
 332         usec_t ipv6_retransmission_time;
 333         int proxy_arp;
 334         int proxy_arp_pvlan;
 335         uint32_t ipv6_mtu;
 336         IPv6PrivacyExtensions ipv6_privacy_extensions;
 337         IPReversePathFilter ipv4_rp_filter;
 338         IPv4ForceIgmpVersion ipv4_force_igmp_version;
 339         int ipv6_proxy_ndp;
 340         Set *ipv6_proxy_ndp_addresses;
 341         int mpls_input;
 342
 343         /* NDisc support */
 344         int ndisc;
 345         int ndisc_use_dnr;
 346         bool ndisc_use_redirect;
 347         int ndisc_use_dns;
 348         bool ndisc_use_gateway;
 349         bool ndisc_use_route_prefix;
 350         bool ndisc_use_autonomous_prefix;
 351         bool ndisc_use_onlink_prefix;
 352         bool ndisc_use_mtu;
 353         bool ndisc_use_hop_limit;
 354         bool ndisc_use_reachable_time;
 355         bool ndisc_use_retransmission_time;
 356         bool ndisc_quickack;
 357         bool ndisc_use_captive_portal;
 358         bool ndisc_use_pref64;
 359         bool active_slave;
 360         bool primary_slave;
 361         UseDomains ndisc_use_domains;
 362         IPv6AcceptRAStartDHCP6Client ndisc_start_dhcp6_client;
 363         uint32_t ndisc_route_table;
 364         bool ndisc_route_table_set;
 365         uint32_t ndisc_route_metric_high;
 366         uint32_t ndisc_route_metric_medium;
 367         uint32_t ndisc_route_metric_low;
 368         bool ndisc_route_metric_set;
 369         Set *ndisc_deny_listed_router;
 370         Set *ndisc_allow_listed_router;
 371         Set *ndisc_deny_listed_prefix;
 372         Set *ndisc_allow_listed_prefix;
 373         Set *ndisc_deny_listed_route_prefix;
 374         Set *ndisc_allow_listed_route_prefix;
 375         Set *ndisc_tokens;
 376         char *ndisc_netlabel;
 377         NFTSetContext ndisc_nft_set_context;
 378
 379         /* LLDP support */
 380         LLDPMode lldp_mode; /* LLDP reception */
 381         sd_lldp_multicast_mode_t lldp_multicast_mode; /* LLDP transmission */
 382         char *lldp_mudurl;  /* LLDP MUD URL */
 383
 384         OrderedHashmap *addresses_by_section;
 385         Hashmap *routes_by_section;
 386         OrderedHashmap *nexthops_by_section;
 387         Hashmap *bridge_fdb_entries_by_section;
 388         Hashmap *bridge_mdb_entries_by_section;
 389         OrderedHashmap *neighbors_by_section;
 390         Hashmap *address_labels_by_section;
 391         Hashmap *prefixes_by_section;
 392         Hashmap *route_prefixes_by_section;
 393         Hashmap *pref64_prefixes_by_section;
 394         Hashmap *rules_by_section;
 395         Hashmap *dhcp_static_leases_by_section;
 396         Hashmap *qdiscs_by_section;
 397         Hashmap *tclasses_by_section;
 398         OrderedHashmap *sr_iov_by_section;
 399
 400         /* All kinds of DNS configuration */
 401         struct in_addr_full **dns;
 402         unsigned n_dns;
 403         OrderedSet *search_domains, *route_domains;
 404         int dns_default_route;
 405         ResolveSupport llmnr;
 406         ResolveSupport mdns;
 407         DnssecMode dnssec_mode;
 408         DnsOverTlsMode dns_over_tls_mode;
 409         Set *dnssec_negative_trust_anchors;
 410
 411         /* NTP */
 412         char **ntp;
 413 } Network;
 414
 415 Network *network_ref(Network *network);
 416 Network *network_unref(Network *network);
 417 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 418
 419 int network_load(Manager *manager, OrderedHashmap **ret);
 420 int network_reload(Manager *manager);
 421 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 422 int network_verify(Network *network);
 423
 424 int manager_build_dhcp_pd_subnet_ids(Manager *manager);
 425
 426 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 427 void network_apply_anonymize_if_set(Network *network);
 428
 429 bool network_has_static_ipv6_configurations(Network *network);
 430
 431 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 432 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 433 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 434 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online);
 435 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 436 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy);
 437 CONFIG_PARSER_PROTOTYPE(config_parse_link_group);
 438 CONFIG_PARSER_PROTOTYPE(config_parse_ignore_carrier_loss);
 439
 440 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 441
 442 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 443 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 444
 445 const char* activation_policy_to_string(ActivationPolicy i) _const_;
 446 ActivationPolicy activation_policy_from_string(const char *s) _pure_;