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-bridge-vlan.h"
  19 #include "networkd-dhcp-common.h"
  20 #include "networkd-dhcp4.h"
  21 #include "networkd-dhcp6.h"
  22 #include "networkd-ipv6ll.h"
  23 #include "networkd-lldp-rx.h"
  24 #include "networkd-ndisc.h"
  25 #include "networkd-radv.h"
  26 #include "networkd-sysctl.h"
  27 #include "networkd-util.h"
  28 #include "ordered-set.h"
  29 #include "resolve-util.h"
  30 #include "socket-netlink.h"
  31
  32 typedef enum KeepConfiguration {
  33         KEEP_CONFIGURATION_NO            = 0,
  34         KEEP_CONFIGURATION_DHCP_ON_START = 1 << 0,
  35         KEEP_CONFIGURATION_DHCP_ON_STOP  = 1 << 1,
  36         KEEP_CONFIGURATION_DHCP          = KEEP_CONFIGURATION_DHCP_ON_START | KEEP_CONFIGURATION_DHCP_ON_STOP,
  37         KEEP_CONFIGURATION_STATIC        = 1 << 2,
  38         KEEP_CONFIGURATION_YES           = KEEP_CONFIGURATION_DHCP | KEEP_CONFIGURATION_STATIC,
  39         _KEEP_CONFIGURATION_MAX,
  40         _KEEP_CONFIGURATION_INVALID = -EINVAL,
  41 } KeepConfiguration;
  42
  43 typedef enum ActivationPolicy {
  44         ACTIVATION_POLICY_UP,
  45         ACTIVATION_POLICY_ALWAYS_UP,
  46         ACTIVATION_POLICY_MANUAL,
  47         ACTIVATION_POLICY_ALWAYS_DOWN,
  48         ACTIVATION_POLICY_DOWN,
  49         ACTIVATION_POLICY_BOUND,
  50         _ACTIVATION_POLICY_MAX,
  51         _ACTIVATION_POLICY_INVALID = -EINVAL,
  52 } ActivationPolicy;
  53
  54 typedef struct Manager Manager;
  55
  56 typedef struct NetworkDHCPServerEmitAddress {
  57         bool emit;
  58         struct in_addr *addresses;
  59         size_t n_addresses;
  60 } NetworkDHCPServerEmitAddress;
  61
  62 struct Network {
  63         Manager *manager;
  64
  65         unsigned n_ref;
  66
  67         char *name;
  68         char *filename;
  69         char **dropins;
  70         Hashmap *stats_by_path;
  71         char *description;
  72
  73         /* [Match] section */
  74         NetMatch match;
  75         LIST_HEAD(Condition, conditions);
  76
  77         /* Master or stacked netdevs */
  78         bool keep_master;
  79         NetDev *batadv;
  80         NetDev *bridge;
  81         NetDev *bond;
  82         NetDev *vrf;
  83         NetDev *xfrm;
  84         Hashmap *stacked_netdevs;
  85         char *batadv_name;
  86         char *bridge_name;
  87         char *bond_name;
  88         char *vrf_name;
  89         Hashmap *stacked_netdev_names;
  90
  91         /* [Link] section */
  92         struct hw_addr_data hw_addr;
  93         uint32_t mtu;
  94         int32_t group;
  95         int arp;
  96         int multicast;
  97         int allmulticast;
  98         int promiscuous;
  99         bool unmanaged;
 100         int required_for_online; /* Is this network required to be considered online? */
 101         LinkOperationalStateRange required_operstate_for_online;
 102         AddressFamily required_family_for_online;
 103         ActivationPolicy activation_policy;
 104
 105         /* misc settings */
 106         bool configure_without_carrier;
 107         bool ignore_carrier_loss_set;
 108         usec_t ignore_carrier_loss_usec; /* timespan */
 109         KeepConfiguration keep_configuration;
 110         char **bind_carrier;
 111         bool default_route_on_device;
 112         AddressFamily ip_masquerade;
 113
 114         /* DHCP Client Support */
 115         AddressFamily dhcp;
 116         DHCPClientIdentifier dhcp_client_identifier;
 117         DUID dhcp_duid;
 118         uint32_t dhcp_iaid;
 119         bool dhcp_iaid_set;
 120         char *dhcp_vendor_class_identifier;
 121         char *dhcp_mudurl;
 122         char **dhcp_user_class;
 123         char *dhcp_hostname;
 124         char *dhcp_label;
 125         uint64_t dhcp_max_attempts;
 126         uint32_t dhcp_route_metric;
 127         bool dhcp_route_metric_set;
 128         uint32_t dhcp_route_table;
 129         bool dhcp_route_table_set;
 130         uint32_t dhcp_fallback_lease_lifetime;
 131         uint32_t dhcp_route_mtu;
 132         uint16_t dhcp_client_port;
 133         int dhcp_critical;
 134         int dhcp_ip_service_type;
 135         int dhcp_socket_priority;
 136         bool dhcp_socket_priority_set;
 137         bool dhcp_anonymize;
 138         bool dhcp_send_hostname;
 139         int dhcp_broadcast;
 140         bool dhcp_use_dns;
 141         bool dhcp_use_dns_set;
 142         bool dhcp_routes_to_dns;
 143         bool dhcp_use_ntp;
 144         bool dhcp_use_ntp_set;
 145         bool dhcp_routes_to_ntp;
 146         bool dhcp_use_sip;
 147         bool dhcp_use_captive_portal;
 148         bool dhcp_use_mtu;
 149         bool dhcp_use_routes;
 150         int dhcp_use_gateway;
 151         bool dhcp_quickack;
 152         uint32_t dhcp_initial_congestion_window;
 153         uint32_t dhcp_advertised_receive_window;
 154         bool dhcp_use_timezone;
 155         bool dhcp_use_hostname;
 156         bool dhcp_use_6rd;
 157         bool dhcp_send_release;
 158         bool dhcp_send_decline;
 159         DHCPUseDomains dhcp_use_domains;
 160         bool dhcp_use_domains_set;
 161         Set *dhcp_deny_listed_ip;
 162         Set *dhcp_allow_listed_ip;
 163         Set *dhcp_request_options;
 164         OrderedHashmap *dhcp_client_send_options;
 165         OrderedHashmap *dhcp_client_send_vendor_options;
 166         char *dhcp_netlabel;
 167         NFTSetContext dhcp_nft_set_context;
 168
 169         /* DHCPv6 Client support */
 170         bool dhcp6_use_address;
 171         bool dhcp6_use_pd_prefix;
 172         bool dhcp6_use_dns;
 173         bool dhcp6_use_dns_set;
 174         bool dhcp6_use_hostname;
 175         bool dhcp6_use_ntp;
 176         bool dhcp6_use_ntp_set;
 177         bool dhcp6_use_captive_portal;
 178         bool dhcp6_use_rapid_commit;
 179         DHCPUseDomains dhcp6_use_domains;
 180         bool dhcp6_use_domains_set;
 181         uint32_t dhcp6_iaid;
 182         bool dhcp6_iaid_set;
 183         bool dhcp6_iaid_set_explicitly;
 184         DUID dhcp6_duid;
 185         uint8_t dhcp6_pd_prefix_length;
 186         struct in6_addr dhcp6_pd_prefix_hint;
 187         char *dhcp6_mudurl;
 188         char **dhcp6_user_class;
 189         char **dhcp6_vendor_class;
 190         DHCP6ClientStartMode dhcp6_client_start_mode;
 191         OrderedHashmap *dhcp6_client_send_options;
 192         OrderedHashmap *dhcp6_client_send_vendor_options;
 193         Set *dhcp6_request_options;
 194         char *dhcp6_netlabel;
 195         bool dhcp6_send_release;
 196         NFTSetContext dhcp6_nft_set_context;
 197
 198         /* DHCP Server Support */
 199         bool dhcp_server;
 200         bool dhcp_server_bind_to_interface;
 201         unsigned char dhcp_server_address_prefixlen;
 202         struct in_addr dhcp_server_address;
 203         int dhcp_server_uplink_index;
 204         char *dhcp_server_uplink_name;
 205         struct in_addr dhcp_server_relay_target;
 206         char *dhcp_server_relay_agent_circuit_id;
 207         char *dhcp_server_relay_agent_remote_id;
 208         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 209         bool dhcp_server_emit_router;
 210         struct in_addr dhcp_server_router;
 211         bool dhcp_server_emit_timezone;
 212         char *dhcp_server_timezone;
 213         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 214         uint32_t dhcp_server_pool_offset;
 215         uint32_t dhcp_server_pool_size;
 216         OrderedHashmap *dhcp_server_send_options;
 217         OrderedHashmap *dhcp_server_send_vendor_options;
 218         struct in_addr dhcp_server_boot_server_address;
 219         char *dhcp_server_boot_server_name;
 220         char *dhcp_server_boot_filename;
 221
 222         /* link-local addressing support */
 223         AddressFamily link_local;
 224         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 225         struct in6_addr ipv6ll_stable_secret;
 226         struct in_addr ipv4ll_start_address;
 227         bool ipv4ll_route;
 228
 229         /* IPv6 RA support */
 230         RADVPrefixDelegation router_prefix_delegation;
 231         usec_t router_lifetime_usec;
 232         uint8_t router_preference;
 233         usec_t router_retransmit_usec;
 234         uint8_t router_hop_limit;
 235         bool router_managed;
 236         bool router_other_information;
 237         bool router_emit_dns;
 238         bool router_emit_domains;
 239         usec_t router_dns_lifetime_usec;
 240         struct in6_addr *router_dns;
 241         unsigned n_router_dns;
 242         OrderedSet *router_search_domains;
 243         int router_uplink_index;
 244         char *router_uplink_name;
 245         /* Mobile IPv6 Home Agent */
 246         bool router_home_agent_information;
 247         uint16_t router_home_agent_preference;
 248         usec_t home_agent_lifetime_usec;
 249
 250         /* DHCP Prefix Delegation support */
 251         int dhcp_pd;
 252         bool dhcp_pd_announce;
 253         bool dhcp_pd_assign;
 254         bool dhcp_pd_manage_temporary_address;
 255         int64_t dhcp_pd_subnet_id;
 256         uint32_t dhcp_pd_route_metric;
 257         Set *dhcp_pd_tokens;
 258         int dhcp_pd_uplink_index;
 259         char *dhcp_pd_uplink_name;
 260         char *dhcp_pd_netlabel;
 261         NFTSetContext dhcp_pd_nft_set_context;
 262
 263         /* Bridge Support */
 264         int use_bpdu;
 265         int hairpin;
 266         int isolated;
 267         int fast_leave;
 268         int allow_port_to_be_root;
 269         int unicast_flood;
 270         int multicast_flood;
 271         int multicast_to_unicast;
 272         int neighbor_suppression;
 273         int learning;
 274         int bridge_proxy_arp;
 275         int bridge_proxy_arp_wifi;
 276         uint32_t cost;
 277         uint16_t priority;
 278         MulticastRouter multicast_router;
 279
 280         /* Bridge VLAN */
 281         bool use_br_vlan;
 282         uint16_t pvid;
 283         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 284         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 285
 286         /* CAN support */
 287         uint32_t can_bitrate;
 288         unsigned can_sample_point;
 289         nsec_t can_time_quanta_ns;
 290         uint32_t can_propagation_segment;
 291         uint32_t can_phase_buffer_segment_1;
 292         uint32_t can_phase_buffer_segment_2;
 293         uint32_t can_sync_jump_width;
 294         uint32_t can_data_bitrate;
 295         unsigned can_data_sample_point;
 296         nsec_t can_data_time_quanta_ns;
 297         uint32_t can_data_propagation_segment;
 298         uint32_t can_data_phase_buffer_segment_1;
 299         uint32_t can_data_phase_buffer_segment_2;
 300         uint32_t can_data_sync_jump_width;
 301         usec_t can_restart_us;
 302         uint32_t can_control_mode_mask;
 303         uint32_t can_control_mode_flags;
 304         uint16_t can_termination;
 305         bool can_termination_set;
 306
 307         /* IPoIB support */
 308         IPoIBMode ipoib_mode;
 309         int ipoib_umcast;
 310
 311         /* sysctl settings */
 312         AddressFamily ip_forward;
 313         int ipv4_accept_local;
 314         int ipv4_route_localnet;
 315         int ipv6_dad_transmits;
 316         int ipv6_hop_limit;
 317         int proxy_arp;
 318         uint32_t ipv6_mtu;
 319         IPv6PrivacyExtensions ipv6_privacy_extensions;
 320         IPReversePathFilter ipv4_rp_filter;
 321         int ipv6_proxy_ndp;
 322         Set *ipv6_proxy_ndp_addresses;
 323
 324         /* IPv6 accept RA */
 325         int ipv6_accept_ra;
 326         bool ipv6_accept_ra_use_dns;
 327         bool ipv6_accept_ra_use_gateway;
 328         bool ipv6_accept_ra_use_route_prefix;
 329         bool ipv6_accept_ra_use_autonomous_prefix;
 330         bool ipv6_accept_ra_use_onlink_prefix;
 331         bool ipv6_accept_ra_use_mtu;
 332         bool ipv6_accept_ra_use_hop_limit;
 333         bool ipv6_accept_ra_use_icmp6_ratelimit;
 334         bool ipv6_accept_ra_quickack;
 335         bool ipv6_accept_ra_use_captive_portal;
 336         bool ipv6_accept_ra_use_pref64;
 337         bool active_slave;
 338         bool primary_slave;
 339         DHCPUseDomains ipv6_accept_ra_use_domains;
 340         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 341         uint32_t ipv6_accept_ra_route_table;
 342         bool ipv6_accept_ra_route_table_set;
 343         uint32_t ipv6_accept_ra_route_metric_high;
 344         uint32_t ipv6_accept_ra_route_metric_medium;
 345         uint32_t ipv6_accept_ra_route_metric_low;
 346         bool ipv6_accept_ra_route_metric_set;
 347         Set *ndisc_deny_listed_router;
 348         Set *ndisc_allow_listed_router;
 349         Set *ndisc_deny_listed_prefix;
 350         Set *ndisc_allow_listed_prefix;
 351         Set *ndisc_deny_listed_route_prefix;
 352         Set *ndisc_allow_listed_route_prefix;
 353         Set *ndisc_tokens;
 354         char *ndisc_netlabel;
 355         NFTSetContext ndisc_nft_set_context;
 356
 357         /* LLDP support */
 358         LLDPMode lldp_mode; /* LLDP reception */
 359         sd_lldp_multicast_mode_t lldp_multicast_mode; /* LLDP transmission */
 360         char *lldp_mudurl;  /* LLDP MUD URL */
 361
 362         OrderedHashmap *addresses_by_section;
 363         Hashmap *routes_by_section;
 364         Hashmap *nexthops_by_section;
 365         Hashmap *bridge_fdb_entries_by_section;
 366         Hashmap *bridge_mdb_entries_by_section;
 367         OrderedHashmap *neighbors_by_section;
 368         Hashmap *address_labels_by_section;
 369         Hashmap *prefixes_by_section;
 370         Hashmap *route_prefixes_by_section;
 371         Hashmap *pref64_prefixes_by_section;
 372         Hashmap *rules_by_section;
 373         Hashmap *dhcp_static_leases_by_section;
 374         Hashmap *qdiscs_by_section;
 375         Hashmap *tclasses_by_section;
 376         OrderedHashmap *sr_iov_by_section;
 377
 378         /* All kinds of DNS configuration */
 379         struct in_addr_full **dns;
 380         unsigned n_dns;
 381         OrderedSet *search_domains, *route_domains;
 382         int dns_default_route;
 383         ResolveSupport llmnr;
 384         ResolveSupport mdns;
 385         DnssecMode dnssec_mode;
 386         DnsOverTlsMode dns_over_tls_mode;
 387         Set *dnssec_negative_trust_anchors;
 388
 389         /* NTP */
 390         char **ntp;
 391 };
 392
 393 Network *network_ref(Network *network);
 394 Network *network_unref(Network *network);
 395 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 396
 397 int network_load(Manager *manager, OrderedHashmap **networks);
 398 int network_reload(Manager *manager);
 399 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 400 int network_verify(Network *network);
 401
 402 int manager_build_dhcp_pd_subnet_ids(Manager *manager);
 403
 404 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 405 void network_apply_anonymize_if_set(Network *network);
 406
 407 bool network_has_static_ipv6_configurations(Network *network);
 408
 409 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 410 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 411 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 412 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 413 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 414 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 415 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 416 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 417 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online);
 418 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 419 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy);
 420 CONFIG_PARSER_PROTOTYPE(config_parse_link_group);
 421 CONFIG_PARSER_PROTOTYPE(config_parse_ignore_carrier_loss);
 422
 423 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 424
 425 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 426 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 427
 428 const char* activation_policy_to_string(ActivationPolicy i) _const_;
 429 ActivationPolicy activation_policy_from_string(const char *s) _pure_;