src/network/networkd-network.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <linux/nl80211.h>
   5
   6 #include "sd-bus.h"
   7 #include "sd-device.h"
   8 #include "sd-lldp-tx.h"
   9
  10 #include "bridge.h"
  11 #include "condition.h"
  12 #include "conf-parser.h"
  13 #include "firewall-util.h"
  14 #include "hashmap.h"
  15 #include "ipoib.h"
  16 #include "net-condition.h"
  17 #include "netdev.h"
  18 #include "networkd-address.h"
  19 #include "networkd-bridge-vlan.h"
  20 #include "networkd-dhcp-common.h"
  21 #include "networkd-dhcp4.h"
  22 #include "networkd-dhcp6.h"
  23 #include "networkd-ipv6ll.h"
  24 #include "networkd-lldp-rx.h"
  25 #include "networkd-ndisc.h"
  26 #include "networkd-radv.h"
  27 #include "networkd-sysctl.h"
  28 #include "networkd-util.h"
  29 #include "ordered-set.h"
  30 #include "resolve-util.h"
  31 #include "socket-netlink.h"
  32
  33 typedef enum KeepConfiguration {
  34         KEEP_CONFIGURATION_NO            = 0,
  35         KEEP_CONFIGURATION_DHCP_ON_START = 1 << 0,
  36         KEEP_CONFIGURATION_DHCP_ON_STOP  = 1 << 1,
  37         KEEP_CONFIGURATION_DHCP          = KEEP_CONFIGURATION_DHCP_ON_START | KEEP_CONFIGURATION_DHCP_ON_STOP,
  38         KEEP_CONFIGURATION_STATIC        = 1 << 2,
  39         KEEP_CONFIGURATION_YES           = KEEP_CONFIGURATION_DHCP | KEEP_CONFIGURATION_STATIC,
  40         _KEEP_CONFIGURATION_MAX,
  41         _KEEP_CONFIGURATION_INVALID = -EINVAL,
  42 } KeepConfiguration;
  43
  44 typedef enum ActivationPolicy {
  45         ACTIVATION_POLICY_UP,
  46         ACTIVATION_POLICY_ALWAYS_UP,
  47         ACTIVATION_POLICY_MANUAL,
  48         ACTIVATION_POLICY_ALWAYS_DOWN,
  49         ACTIVATION_POLICY_DOWN,
  50         ACTIVATION_POLICY_BOUND,
  51         _ACTIVATION_POLICY_MAX,
  52         _ACTIVATION_POLICY_INVALID = -EINVAL,
  53 } ActivationPolicy;
  54
  55 typedef struct Manager Manager;
  56
  57 typedef struct NetworkDHCPServerEmitAddress {
  58         bool emit;
  59         struct in_addr *addresses;
  60         size_t n_addresses;
  61 } NetworkDHCPServerEmitAddress;
  62
  63 struct Network {
  64         Manager *manager;
  65
  66         unsigned n_ref;
  67
  68         char *name;
  69         char *filename;
  70         char **dropins;
  71         Hashmap *stats_by_path;
  72         char *description;
  73
  74         /* [Match] section */
  75         NetMatch match;
  76         LIST_HEAD(Condition, conditions);
  77
  78         /* Master or stacked netdevs */
  79         bool keep_master;
  80         NetDev *batadv;
  81         NetDev *bridge;
  82         NetDev *bond;
  83         NetDev *vrf;
  84         NetDev *xfrm;
  85         Hashmap *stacked_netdevs;
  86         char *batadv_name;
  87         char *bridge_name;
  88         char *bond_name;
  89         char *vrf_name;
  90         Hashmap *stacked_netdev_names;
  91
  92         /* [Link] section */
  93         struct hw_addr_data hw_addr;
  94         uint32_t mtu;
  95         int32_t group;
  96         int arp;
  97         int multicast;
  98         int allmulticast;
  99         int promiscuous;
 100         bool unmanaged;
 101         int required_for_online; /* Is this network required to be considered online? */
 102         LinkOperationalStateRange required_operstate_for_online;
 103         AddressFamily required_family_for_online;
 104         ActivationPolicy activation_policy;
 105
 106         /* misc settings */
 107         bool configure_without_carrier;
 108         bool ignore_carrier_loss_set;
 109         usec_t ignore_carrier_loss_usec; /* timespan */
 110         KeepConfiguration keep_configuration;
 111         char **bind_carrier;
 112         bool default_route_on_device;
 113         AddressFamily ip_masquerade;
 114
 115         /* DHCP Client Support */
 116         AddressFamily dhcp;
 117         struct in_addr dhcp_request_address;
 118         DHCPClientIdentifier dhcp_client_identifier;
 119         DUID dhcp_duid;
 120         uint32_t dhcp_iaid;
 121         bool dhcp_iaid_set;
 122         char *dhcp_vendor_class_identifier;
 123         char *dhcp_mudurl;
 124         char **dhcp_user_class;
 125         char *dhcp_hostname;
 126         char *dhcp_label;
 127         uint64_t dhcp_max_attempts;
 128         uint32_t dhcp_route_metric;
 129         bool dhcp_route_metric_set;
 130         uint32_t dhcp_route_table;
 131         bool dhcp_route_table_set;
 132         usec_t dhcp_fallback_lease_lifetime_usec;
 133         uint32_t dhcp_route_mtu;
 134         uint16_t dhcp_client_port;
 135         uint16_t dhcp_port;
 136         int dhcp_critical;
 137         int dhcp_ip_service_type;
 138         int dhcp_socket_priority;
 139         bool dhcp_socket_priority_set;
 140         bool dhcp_anonymize;
 141         bool dhcp_send_hostname;
 142         bool dhcp_send_hostname_set;
 143         int dhcp_broadcast;
 144         int dhcp_ipv6_only_mode;
 145         int dhcp_use_rapid_commit;
 146         bool dhcp_use_dns;
 147         bool dhcp_use_dns_set;
 148         bool dhcp_routes_to_dns;
 149         bool dhcp_use_ntp;
 150         bool dhcp_use_ntp_set;
 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         bool dhcp_send_release;
 164         bool dhcp_send_decline;
 165         DHCPUseDomains dhcp_use_domains;
 166         bool dhcp_use_domains_set;
 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         bool dhcp6_use_dns;
 181         bool dhcp6_use_dns_set;
 182         bool dhcp6_use_hostname;
 183         bool dhcp6_use_ntp;
 184         bool dhcp6_use_ntp_set;
 185         bool dhcp6_use_captive_portal;
 186         bool dhcp6_use_rapid_commit;
 187         DHCPUseDomains dhcp6_use_domains;
 188         bool dhcp6_use_domains_set;
 189         uint32_t dhcp6_iaid;
 190         bool dhcp6_iaid_set;
 191         bool dhcp6_iaid_set_explicitly;
 192         DUID dhcp6_duid;
 193         uint8_t dhcp6_pd_prefix_length;
 194         struct in6_addr dhcp6_pd_prefix_hint;
 195         char *dhcp6_hostname;
 196         char *dhcp6_mudurl;
 197         char **dhcp6_user_class;
 198         char **dhcp6_vendor_class;
 199         DHCP6ClientStartMode dhcp6_client_start_mode;
 200         OrderedHashmap *dhcp6_client_send_options;
 201         OrderedHashmap *dhcp6_client_send_vendor_options;
 202         Set *dhcp6_request_options;
 203         char *dhcp6_netlabel;
 204         bool dhcp6_send_release;
 205         NFTSetContext dhcp6_nft_set_context;
 206
 207         /* DHCP Server Support */
 208         bool dhcp_server;
 209         bool dhcp_server_bind_to_interface;
 210         unsigned char dhcp_server_address_prefixlen;
 211         struct in_addr dhcp_server_address_in_addr;
 212         const Address *dhcp_server_address;
 213         int dhcp_server_uplink_index;
 214         char *dhcp_server_uplink_name;
 215         struct in_addr dhcp_server_relay_target;
 216         char *dhcp_server_relay_agent_circuit_id;
 217         char *dhcp_server_relay_agent_remote_id;
 218         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 219         bool dhcp_server_emit_router;
 220         struct in_addr dhcp_server_router;
 221         bool dhcp_server_emit_timezone;
 222         char *dhcp_server_timezone;
 223         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 224         uint32_t dhcp_server_pool_offset;
 225         uint32_t dhcp_server_pool_size;
 226         OrderedHashmap *dhcp_server_send_options;
 227         OrderedHashmap *dhcp_server_send_vendor_options;
 228         struct in_addr dhcp_server_boot_server_address;
 229         char *dhcp_server_boot_server_name;
 230         char *dhcp_server_boot_filename;
 231         usec_t dhcp_server_ipv6_only_preferred_usec;
 232         bool dhcp_server_rapid_commit;
 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_retransmit_usec;
 246         uint8_t router_hop_limit;
 247         bool router_managed;
 248         bool router_other_information;
 249         bool router_emit_dns;
 250         bool router_emit_domains;
 251         usec_t router_dns_lifetime_usec;
 252         struct in6_addr *router_dns;
 253         unsigned n_router_dns;
 254         OrderedSet *router_search_domains;
 255         int router_uplink_index;
 256         char *router_uplink_name;
 257         /* Mobile IPv6 Home Agent */
 258         bool router_home_agent_information;
 259         uint16_t router_home_agent_preference;
 260         usec_t home_agent_lifetime_usec;
 261
 262         /* DHCP Prefix Delegation support */
 263         int dhcp_pd;
 264         bool dhcp_pd_announce;
 265         bool dhcp_pd_assign;
 266         bool dhcp_pd_manage_temporary_address;
 267         int64_t dhcp_pd_subnet_id;
 268         uint32_t dhcp_pd_route_metric;
 269         Set *dhcp_pd_tokens;
 270         int dhcp_pd_uplink_index;
 271         char *dhcp_pd_uplink_name;
 272         char *dhcp_pd_netlabel;
 273         NFTSetContext dhcp_pd_nft_set_context;
 274
 275         /* Bridge Support */
 276         int use_bpdu;
 277         int hairpin;
 278         int isolated;
 279         int fast_leave;
 280         int allow_port_to_be_root;
 281         int unicast_flood;
 282         int multicast_flood;
 283         int multicast_to_unicast;
 284         int neighbor_suppression;
 285         int learning;
 286         int bridge_proxy_arp;
 287         int bridge_proxy_arp_wifi;
 288         uint32_t cost;
 289         uint16_t priority;
 290         MulticastRouter multicast_router;
 291
 292         /* Bridge VLAN */
 293         uint16_t bridge_vlan_pvid;
 294         uint32_t bridge_vlan_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 295         uint32_t bridge_vlan_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 296
 297         /* CAN support */
 298         uint32_t can_bitrate;
 299         unsigned can_sample_point;
 300         nsec_t can_time_quanta_ns;
 301         uint32_t can_propagation_segment;
 302         uint32_t can_phase_buffer_segment_1;
 303         uint32_t can_phase_buffer_segment_2;
 304         uint32_t can_sync_jump_width;
 305         uint32_t can_data_bitrate;
 306         unsigned can_data_sample_point;
 307         nsec_t can_data_time_quanta_ns;
 308         uint32_t can_data_propagation_segment;
 309         uint32_t can_data_phase_buffer_segment_1;
 310         uint32_t can_data_phase_buffer_segment_2;
 311         uint32_t can_data_sync_jump_width;
 312         usec_t can_restart_us;
 313         uint32_t can_control_mode_mask;
 314         uint32_t can_control_mode_flags;
 315         uint16_t can_termination;
 316         bool can_termination_set;
 317
 318         /* IPoIB support */
 319         IPoIBMode ipoib_mode;
 320         int ipoib_umcast;
 321
 322         /* sysctl settings */
 323         int ip_forwarding[2];
 324         int ipv4_accept_local;
 325         int ipv4_route_localnet;
 326         int ipv6_dad_transmits;
 327         uint8_t ipv6_hop_limit;
 328         usec_t ipv6_retransmission_time;
 329         int proxy_arp;
 330         int proxy_arp_pvlan;
 331         uint32_t ipv6_mtu;
 332         IPv6PrivacyExtensions ipv6_privacy_extensions;
 333         IPReversePathFilter ipv4_rp_filter;
 334         int ipv6_proxy_ndp;
 335         Set *ipv6_proxy_ndp_addresses;
 336
 337         /* NDisc support */
 338         int ndisc;
 339         bool ndisc_use_dns;
 340         bool ndisc_use_gateway;
 341         bool ndisc_use_route_prefix;
 342         bool ndisc_use_autonomous_prefix;
 343         bool ndisc_use_onlink_prefix;
 344         bool ndisc_use_mtu;
 345         bool ndisc_use_hop_limit;
 346         bool ndisc_use_reachable_time;
 347         bool ndisc_use_retransmission_time;
 348         bool ndisc_use_icmp6_ratelimit;
 349         bool ndisc_quickack;
 350         bool ndisc_use_captive_portal;
 351         bool ndisc_use_pref64;
 352         bool active_slave;
 353         bool primary_slave;
 354         DHCPUseDomains ndisc_use_domains;
 355         IPv6AcceptRAStartDHCP6Client ndisc_start_dhcp6_client;
 356         uint32_t ndisc_route_table;
 357         bool ndisc_route_table_set;
 358         uint32_t ndisc_route_metric_high;
 359         uint32_t ndisc_route_metric_medium;
 360         uint32_t ndisc_route_metric_low;
 361         bool ndisc_route_metric_set;
 362         Set *ndisc_deny_listed_router;
 363         Set *ndisc_allow_listed_router;
 364         Set *ndisc_deny_listed_prefix;
 365         Set *ndisc_allow_listed_prefix;
 366         Set *ndisc_deny_listed_route_prefix;
 367         Set *ndisc_allow_listed_route_prefix;
 368         Set *ndisc_tokens;
 369         char *ndisc_netlabel;
 370         NFTSetContext ndisc_nft_set_context;
 371
 372         /* LLDP support */
 373         LLDPMode lldp_mode; /* LLDP reception */
 374         sd_lldp_multicast_mode_t lldp_multicast_mode; /* LLDP transmission */
 375         char *lldp_mudurl;  /* LLDP MUD URL */
 376
 377         OrderedHashmap *addresses_by_section;
 378         Hashmap *routes_by_section;
 379         OrderedHashmap *nexthops_by_section;
 380         Hashmap *bridge_fdb_entries_by_section;
 381         Hashmap *bridge_mdb_entries_by_section;
 382         OrderedHashmap *neighbors_by_section;
 383         Hashmap *address_labels_by_section;
 384         Hashmap *prefixes_by_section;
 385         Hashmap *route_prefixes_by_section;
 386         Hashmap *pref64_prefixes_by_section;
 387         Hashmap *rules_by_section;
 388         Hashmap *dhcp_static_leases_by_section;
 389         Hashmap *qdiscs_by_section;
 390         Hashmap *tclasses_by_section;
 391         OrderedHashmap *sr_iov_by_section;
 392
 393         /* All kinds of DNS configuration */
 394         struct in_addr_full **dns;
 395         unsigned n_dns;
 396         OrderedSet *search_domains, *route_domains;
 397         int dns_default_route;
 398         ResolveSupport llmnr;
 399         ResolveSupport mdns;
 400         DnssecMode dnssec_mode;
 401         DnsOverTlsMode dns_over_tls_mode;
 402         Set *dnssec_negative_trust_anchors;
 403
 404         /* NTP */
 405         char **ntp;
 406 };
 407
 408 Network *network_ref(Network *network);
 409 Network *network_unref(Network *network);
 410 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 411
 412 int network_load(Manager *manager, OrderedHashmap **networks);
 413 int network_reload(Manager *manager);
 414 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 415 int network_verify(Network *network);
 416
 417 int manager_build_dhcp_pd_subnet_ids(Manager *manager);
 418
 419 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 420 void network_apply_anonymize_if_set(Network *network);
 421
 422 bool network_has_static_ipv6_configurations(Network *network);
 423
 424 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 425 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 426 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 427 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 428 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 429 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 430 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 431 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 432 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online);
 433 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 434 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy);
 435 CONFIG_PARSER_PROTOTYPE(config_parse_link_group);
 436 CONFIG_PARSER_PROTOTYPE(config_parse_ignore_carrier_loss);
 437
 438 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 439
 440 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 441 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 442
 443 const char* activation_policy_to_string(ActivationPolicy i) _const_;
 444 ActivationPolicy activation_policy_from_string(const char *s) _pure_;