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         int dhcp_critical;
 136         int dhcp_ip_service_type;
 137         int dhcp_socket_priority;
 138         bool dhcp_socket_priority_set;
 139         bool dhcp_anonymize;
 140         bool dhcp_send_hostname;
 141         bool dhcp_send_hostname_set;
 142         int dhcp_broadcast;
 143         int dhcp_ipv6_only_mode;
 144         int dhcp_use_rapid_commit;
 145         bool dhcp_use_dns;
 146         bool dhcp_use_dns_set;
 147         bool dhcp_routes_to_dns;
 148         bool dhcp_use_ntp;
 149         bool dhcp_use_ntp_set;
 150         bool dhcp_routes_to_ntp;
 151         bool dhcp_use_sip;
 152         bool dhcp_use_captive_portal;
 153         bool dhcp_use_mtu;
 154         bool dhcp_use_routes;
 155         int dhcp_use_gateway;
 156         bool dhcp_quickack;
 157         uint32_t dhcp_initial_congestion_window;
 158         uint32_t dhcp_advertised_receive_window;
 159         bool dhcp_use_timezone;
 160         bool dhcp_use_hostname;
 161         bool dhcp_use_6rd;
 162         bool dhcp_send_release;
 163         bool dhcp_send_decline;
 164         DHCPUseDomains dhcp_use_domains;
 165         bool dhcp_use_domains_set;
 166         Set *dhcp_deny_listed_ip;
 167         Set *dhcp_allow_listed_ip;
 168         Set *dhcp_request_options;
 169         OrderedHashmap *dhcp_client_send_options;
 170         OrderedHashmap *dhcp_client_send_vendor_options;
 171         char *dhcp_netlabel;
 172         NFTSetContext dhcp_nft_set_context;
 173
 174         /* DHCPv6 Client support */
 175         bool dhcp6_use_address;
 176         bool dhcp6_use_pd_prefix;
 177         bool dhcp6_send_hostname;
 178         bool dhcp6_send_hostname_set;
 179         bool dhcp6_use_dns;
 180         bool dhcp6_use_dns_set;
 181         bool dhcp6_use_hostname;
 182         bool dhcp6_use_ntp;
 183         bool dhcp6_use_ntp_set;
 184         bool dhcp6_use_captive_portal;
 185         bool dhcp6_use_rapid_commit;
 186         DHCPUseDomains dhcp6_use_domains;
 187         bool dhcp6_use_domains_set;
 188         uint32_t dhcp6_iaid;
 189         bool dhcp6_iaid_set;
 190         bool dhcp6_iaid_set_explicitly;
 191         DUID dhcp6_duid;
 192         uint8_t dhcp6_pd_prefix_length;
 193         struct in6_addr dhcp6_pd_prefix_hint;
 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
 233         /* link-local addressing support */
 234         AddressFamily link_local;
 235         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 236         struct in6_addr ipv6ll_stable_secret;
 237         struct in_addr ipv4ll_start_address;
 238         bool ipv4ll_route;
 239
 240         /* IPv6 RA support */
 241         RADVPrefixDelegation router_prefix_delegation;
 242         usec_t router_lifetime_usec;
 243         uint8_t router_preference;
 244         usec_t router_retransmit_usec;
 245         uint8_t router_hop_limit;
 246         bool router_managed;
 247         bool router_other_information;
 248         bool router_emit_dns;
 249         bool router_emit_domains;
 250         usec_t router_dns_lifetime_usec;
 251         struct in6_addr *router_dns;
 252         unsigned n_router_dns;
 253         OrderedSet *router_search_domains;
 254         int router_uplink_index;
 255         char *router_uplink_name;
 256         /* Mobile IPv6 Home Agent */
 257         bool router_home_agent_information;
 258         uint16_t router_home_agent_preference;
 259         usec_t home_agent_lifetime_usec;
 260
 261         /* DHCP Prefix Delegation support */
 262         int dhcp_pd;
 263         bool dhcp_pd_announce;
 264         bool dhcp_pd_assign;
 265         bool dhcp_pd_manage_temporary_address;
 266         int64_t dhcp_pd_subnet_id;
 267         uint32_t dhcp_pd_route_metric;
 268         Set *dhcp_pd_tokens;
 269         int dhcp_pd_uplink_index;
 270         char *dhcp_pd_uplink_name;
 271         char *dhcp_pd_netlabel;
 272         NFTSetContext dhcp_pd_nft_set_context;
 273
 274         /* Bridge Support */
 275         int use_bpdu;
 276         int hairpin;
 277         int isolated;
 278         int fast_leave;
 279         int allow_port_to_be_root;
 280         int unicast_flood;
 281         int multicast_flood;
 282         int multicast_to_unicast;
 283         int neighbor_suppression;
 284         int learning;
 285         int bridge_proxy_arp;
 286         int bridge_proxy_arp_wifi;
 287         uint32_t cost;
 288         uint16_t priority;
 289         MulticastRouter multicast_router;
 290
 291         /* Bridge VLAN */
 292         uint16_t bridge_vlan_pvid;
 293         uint32_t bridge_vlan_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 294         uint32_t bridge_vlan_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 295
 296         /* CAN support */
 297         uint32_t can_bitrate;
 298         unsigned can_sample_point;
 299         nsec_t can_time_quanta_ns;
 300         uint32_t can_propagation_segment;
 301         uint32_t can_phase_buffer_segment_1;
 302         uint32_t can_phase_buffer_segment_2;
 303         uint32_t can_sync_jump_width;
 304         uint32_t can_data_bitrate;
 305         unsigned can_data_sample_point;
 306         nsec_t can_data_time_quanta_ns;
 307         uint32_t can_data_propagation_segment;
 308         uint32_t can_data_phase_buffer_segment_1;
 309         uint32_t can_data_phase_buffer_segment_2;
 310         uint32_t can_data_sync_jump_width;
 311         usec_t can_restart_us;
 312         uint32_t can_control_mode_mask;
 313         uint32_t can_control_mode_flags;
 314         uint16_t can_termination;
 315         bool can_termination_set;
 316
 317         /* IPoIB support */
 318         IPoIBMode ipoib_mode;
 319         int ipoib_umcast;
 320
 321         /* sysctl settings */
 322         AddressFamily ip_forward;
 323         int ipv4_accept_local;
 324         int ipv4_route_localnet;
 325         int ipv6_dad_transmits;
 326         uint8_t ipv6_hop_limit;
 327         usec_t ipv6_retransmission_time;
 328         int proxy_arp;
 329         int proxy_arp_pvlan;
 330         uint32_t ipv6_mtu;
 331         IPv6PrivacyExtensions ipv6_privacy_extensions;
 332         IPReversePathFilter ipv4_rp_filter;
 333         int ipv6_proxy_ndp;
 334         Set *ipv6_proxy_ndp_addresses;
 335
 336         /* IPv6 accept RA */
 337         int ipv6_accept_ra;
 338         bool ipv6_accept_ra_use_dns;
 339         bool ipv6_accept_ra_use_gateway;
 340         bool ipv6_accept_ra_use_route_prefix;
 341         bool ipv6_accept_ra_use_autonomous_prefix;
 342         bool ipv6_accept_ra_use_onlink_prefix;
 343         bool ipv6_accept_ra_use_mtu;
 344         bool ipv6_accept_ra_use_hop_limit;
 345         bool ipv6_accept_ra_use_retransmission_time;
 346         bool ipv6_accept_ra_use_icmp6_ratelimit;
 347         bool ipv6_accept_ra_quickack;
 348         bool ipv6_accept_ra_use_captive_portal;
 349         bool ipv6_accept_ra_use_pref64;
 350         bool active_slave;
 351         bool primary_slave;
 352         DHCPUseDomains ipv6_accept_ra_use_domains;
 353         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 354         uint32_t ipv6_accept_ra_route_table;
 355         bool ipv6_accept_ra_route_table_set;
 356         uint32_t ipv6_accept_ra_route_metric_high;
 357         uint32_t ipv6_accept_ra_route_metric_medium;
 358         uint32_t ipv6_accept_ra_route_metric_low;
 359         bool ipv6_accept_ra_route_metric_set;
 360         Set *ndisc_deny_listed_router;
 361         Set *ndisc_allow_listed_router;
 362         Set *ndisc_deny_listed_prefix;
 363         Set *ndisc_allow_listed_prefix;
 364         Set *ndisc_deny_listed_route_prefix;
 365         Set *ndisc_allow_listed_route_prefix;
 366         Set *ndisc_tokens;
 367         char *ndisc_netlabel;
 368         NFTSetContext ndisc_nft_set_context;
 369
 370         /* LLDP support */
 371         LLDPMode lldp_mode; /* LLDP reception */
 372         sd_lldp_multicast_mode_t lldp_multicast_mode; /* LLDP transmission */
 373         char *lldp_mudurl;  /* LLDP MUD URL */
 374
 375         OrderedHashmap *addresses_by_section;
 376         Hashmap *routes_by_section;
 377         OrderedHashmap *nexthops_by_section;
 378         Hashmap *bridge_fdb_entries_by_section;
 379         Hashmap *bridge_mdb_entries_by_section;
 380         OrderedHashmap *neighbors_by_section;
 381         Hashmap *address_labels_by_section;
 382         Hashmap *prefixes_by_section;
 383         Hashmap *route_prefixes_by_section;
 384         Hashmap *pref64_prefixes_by_section;
 385         Hashmap *rules_by_section;
 386         Hashmap *dhcp_static_leases_by_section;
 387         Hashmap *qdiscs_by_section;
 388         Hashmap *tclasses_by_section;
 389         OrderedHashmap *sr_iov_by_section;
 390
 391         /* All kinds of DNS configuration */
 392         struct in_addr_full **dns;
 393         unsigned n_dns;
 394         OrderedSet *search_domains, *route_domains;
 395         int dns_default_route;
 396         ResolveSupport llmnr;
 397         ResolveSupport mdns;
 398         DnssecMode dnssec_mode;
 399         DnsOverTlsMode dns_over_tls_mode;
 400         Set *dnssec_negative_trust_anchors;
 401
 402         /* NTP */
 403         char **ntp;
 404 };
 405
 406 Network *network_ref(Network *network);
 407 Network *network_unref(Network *network);
 408 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 409
 410 int network_load(Manager *manager, OrderedHashmap **networks);
 411 int network_reload(Manager *manager);
 412 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 413 int network_verify(Network *network);
 414
 415 int manager_build_dhcp_pd_subnet_ids(Manager *manager);
 416
 417 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 418 void network_apply_anonymize_if_set(Network *network);
 419
 420 bool network_has_static_ipv6_configurations(Network *network);
 421
 422 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 423 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 424 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 425 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 426 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 427 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 428 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 429 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 430 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online);
 431 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 432 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy);
 433 CONFIG_PARSER_PROTOTYPE(config_parse_link_group);
 434 CONFIG_PARSER_PROTOTYPE(config_parse_ignore_carrier_loss);
 435
 436 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 437
 438 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 439 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 440
 441 const char* activation_policy_to_string(ActivationPolicy i) _const_;
 442 ActivationPolicy activation_policy_from_string(const char *s) _pure_;