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         int dhcp_broadcast;
 142         int dhcp_ipv6_only_mode;
 143         bool dhcp_use_dns;
 144         bool dhcp_use_dns_set;
 145         bool dhcp_routes_to_dns;
 146         bool dhcp_use_ntp;
 147         bool dhcp_use_ntp_set;
 148         bool dhcp_routes_to_ntp;
 149         bool dhcp_use_sip;
 150         bool dhcp_use_captive_portal;
 151         bool dhcp_use_mtu;
 152         bool dhcp_use_routes;
 153         int dhcp_use_gateway;
 154         bool dhcp_quickack;
 155         uint32_t dhcp_initial_congestion_window;
 156         uint32_t dhcp_advertised_receive_window;
 157         bool dhcp_use_timezone;
 158         bool dhcp_use_hostname;
 159         bool dhcp_use_6rd;
 160         bool dhcp_send_release;
 161         bool dhcp_send_decline;
 162         DHCPUseDomains dhcp_use_domains;
 163         bool dhcp_use_domains_set;
 164         Set *dhcp_deny_listed_ip;
 165         Set *dhcp_allow_listed_ip;
 166         Set *dhcp_request_options;
 167         OrderedHashmap *dhcp_client_send_options;
 168         OrderedHashmap *dhcp_client_send_vendor_options;
 169         char *dhcp_netlabel;
 170         NFTSetContext dhcp_nft_set_context;
 171
 172         /* DHCPv6 Client support */
 173         bool dhcp6_use_address;
 174         bool dhcp6_use_pd_prefix;
 175         bool dhcp6_use_dns;
 176         bool dhcp6_use_dns_set;
 177         bool dhcp6_use_hostname;
 178         bool dhcp6_use_ntp;
 179         bool dhcp6_use_ntp_set;
 180         bool dhcp6_use_captive_portal;
 181         bool dhcp6_use_rapid_commit;
 182         DHCPUseDomains dhcp6_use_domains;
 183         bool dhcp6_use_domains_set;
 184         uint32_t dhcp6_iaid;
 185         bool dhcp6_iaid_set;
 186         bool dhcp6_iaid_set_explicitly;
 187         DUID dhcp6_duid;
 188         uint8_t dhcp6_pd_prefix_length;
 189         struct in6_addr dhcp6_pd_prefix_hint;
 190         char *dhcp6_mudurl;
 191         char **dhcp6_user_class;
 192         char **dhcp6_vendor_class;
 193         DHCP6ClientStartMode dhcp6_client_start_mode;
 194         OrderedHashmap *dhcp6_client_send_options;
 195         OrderedHashmap *dhcp6_client_send_vendor_options;
 196         Set *dhcp6_request_options;
 197         char *dhcp6_netlabel;
 198         bool dhcp6_send_release;
 199         NFTSetContext dhcp6_nft_set_context;
 200
 201         /* DHCP Server Support */
 202         bool dhcp_server;
 203         bool dhcp_server_bind_to_interface;
 204         unsigned char dhcp_server_address_prefixlen;
 205         struct in_addr dhcp_server_address_in_addr;
 206         const Address *dhcp_server_address;
 207         int dhcp_server_uplink_index;
 208         char *dhcp_server_uplink_name;
 209         struct in_addr dhcp_server_relay_target;
 210         char *dhcp_server_relay_agent_circuit_id;
 211         char *dhcp_server_relay_agent_remote_id;
 212         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 213         bool dhcp_server_emit_router;
 214         struct in_addr dhcp_server_router;
 215         bool dhcp_server_emit_timezone;
 216         char *dhcp_server_timezone;
 217         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 218         uint32_t dhcp_server_pool_offset;
 219         uint32_t dhcp_server_pool_size;
 220         OrderedHashmap *dhcp_server_send_options;
 221         OrderedHashmap *dhcp_server_send_vendor_options;
 222         struct in_addr dhcp_server_boot_server_address;
 223         char *dhcp_server_boot_server_name;
 224         char *dhcp_server_boot_filename;
 225         usec_t dhcp_server_ipv6_only_preferred_usec;
 226
 227         /* link-local addressing support */
 228         AddressFamily link_local;
 229         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 230         struct in6_addr ipv6ll_stable_secret;
 231         struct in_addr ipv4ll_start_address;
 232         bool ipv4ll_route;
 233
 234         /* IPv6 RA support */
 235         RADVPrefixDelegation router_prefix_delegation;
 236         usec_t router_lifetime_usec;
 237         uint8_t router_preference;
 238         usec_t router_retransmit_usec;
 239         uint8_t router_hop_limit;
 240         bool router_managed;
 241         bool router_other_information;
 242         bool router_emit_dns;
 243         bool router_emit_domains;
 244         usec_t router_dns_lifetime_usec;
 245         struct in6_addr *router_dns;
 246         unsigned n_router_dns;
 247         OrderedSet *router_search_domains;
 248         int router_uplink_index;
 249         char *router_uplink_name;
 250         /* Mobile IPv6 Home Agent */
 251         bool router_home_agent_information;
 252         uint16_t router_home_agent_preference;
 253         usec_t home_agent_lifetime_usec;
 254
 255         /* DHCP Prefix Delegation support */
 256         int dhcp_pd;
 257         bool dhcp_pd_announce;
 258         bool dhcp_pd_assign;
 259         bool dhcp_pd_manage_temporary_address;
 260         int64_t dhcp_pd_subnet_id;
 261         uint32_t dhcp_pd_route_metric;
 262         Set *dhcp_pd_tokens;
 263         int dhcp_pd_uplink_index;
 264         char *dhcp_pd_uplink_name;
 265         char *dhcp_pd_netlabel;
 266         NFTSetContext dhcp_pd_nft_set_context;
 267
 268         /* Bridge Support */
 269         int use_bpdu;
 270         int hairpin;
 271         int isolated;
 272         int fast_leave;
 273         int allow_port_to_be_root;
 274         int unicast_flood;
 275         int multicast_flood;
 276         int multicast_to_unicast;
 277         int neighbor_suppression;
 278         int learning;
 279         int bridge_proxy_arp;
 280         int bridge_proxy_arp_wifi;
 281         uint32_t cost;
 282         uint16_t priority;
 283         MulticastRouter multicast_router;
 284
 285         /* Bridge VLAN */
 286         bool use_br_vlan;
 287         uint16_t pvid;
 288         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 289         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 290
 291         /* CAN support */
 292         uint32_t can_bitrate;
 293         unsigned can_sample_point;
 294         nsec_t can_time_quanta_ns;
 295         uint32_t can_propagation_segment;
 296         uint32_t can_phase_buffer_segment_1;
 297         uint32_t can_phase_buffer_segment_2;
 298         uint32_t can_sync_jump_width;
 299         uint32_t can_data_bitrate;
 300         unsigned can_data_sample_point;
 301         nsec_t can_data_time_quanta_ns;
 302         uint32_t can_data_propagation_segment;
 303         uint32_t can_data_phase_buffer_segment_1;
 304         uint32_t can_data_phase_buffer_segment_2;
 305         uint32_t can_data_sync_jump_width;
 306         usec_t can_restart_us;
 307         uint32_t can_control_mode_mask;
 308         uint32_t can_control_mode_flags;
 309         uint16_t can_termination;
 310         bool can_termination_set;
 311
 312         /* IPoIB support */
 313         IPoIBMode ipoib_mode;
 314         int ipoib_umcast;
 315
 316         /* sysctl settings */
 317         AddressFamily ip_forward;
 318         int ipv4_accept_local;
 319         int ipv4_route_localnet;
 320         int ipv6_dad_transmits;
 321         int ipv6_hop_limit;
 322         int proxy_arp;
 323         uint32_t ipv6_mtu;
 324         IPv6PrivacyExtensions ipv6_privacy_extensions;
 325         IPReversePathFilter ipv4_rp_filter;
 326         int ipv6_proxy_ndp;
 327         Set *ipv6_proxy_ndp_addresses;
 328
 329         /* IPv6 accept RA */
 330         int ipv6_accept_ra;
 331         bool ipv6_accept_ra_use_dns;
 332         bool ipv6_accept_ra_use_gateway;
 333         bool ipv6_accept_ra_use_route_prefix;
 334         bool ipv6_accept_ra_use_autonomous_prefix;
 335         bool ipv6_accept_ra_use_onlink_prefix;
 336         bool ipv6_accept_ra_use_mtu;
 337         bool ipv6_accept_ra_use_hop_limit;
 338         bool ipv6_accept_ra_use_icmp6_ratelimit;
 339         bool ipv6_accept_ra_quickack;
 340         bool ipv6_accept_ra_use_captive_portal;
 341         bool ipv6_accept_ra_use_pref64;
 342         bool active_slave;
 343         bool primary_slave;
 344         DHCPUseDomains ipv6_accept_ra_use_domains;
 345         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 346         uint32_t ipv6_accept_ra_route_table;
 347         bool ipv6_accept_ra_route_table_set;
 348         uint32_t ipv6_accept_ra_route_metric_high;
 349         uint32_t ipv6_accept_ra_route_metric_medium;
 350         uint32_t ipv6_accept_ra_route_metric_low;
 351         bool ipv6_accept_ra_route_metric_set;
 352         Set *ndisc_deny_listed_router;
 353         Set *ndisc_allow_listed_router;
 354         Set *ndisc_deny_listed_prefix;
 355         Set *ndisc_allow_listed_prefix;
 356         Set *ndisc_deny_listed_route_prefix;
 357         Set *ndisc_allow_listed_route_prefix;
 358         Set *ndisc_tokens;
 359         char *ndisc_netlabel;
 360         NFTSetContext ndisc_nft_set_context;
 361
 362         /* LLDP support */
 363         LLDPMode lldp_mode; /* LLDP reception */
 364         sd_lldp_multicast_mode_t lldp_multicast_mode; /* LLDP transmission */
 365         char *lldp_mudurl;  /* LLDP MUD URL */
 366
 367         OrderedHashmap *addresses_by_section;
 368         Hashmap *routes_by_section;
 369         Hashmap *nexthops_by_section;
 370         Hashmap *bridge_fdb_entries_by_section;
 371         Hashmap *bridge_mdb_entries_by_section;
 372         OrderedHashmap *neighbors_by_section;
 373         Hashmap *address_labels_by_section;
 374         Hashmap *prefixes_by_section;
 375         Hashmap *route_prefixes_by_section;
 376         Hashmap *pref64_prefixes_by_section;
 377         Hashmap *rules_by_section;
 378         Hashmap *dhcp_static_leases_by_section;
 379         Hashmap *qdiscs_by_section;
 380         Hashmap *tclasses_by_section;
 381         OrderedHashmap *sr_iov_by_section;
 382
 383         /* All kinds of DNS configuration */
 384         struct in_addr_full **dns;
 385         unsigned n_dns;
 386         OrderedSet *search_domains, *route_domains;
 387         int dns_default_route;
 388         ResolveSupport llmnr;
 389         ResolveSupport mdns;
 390         DnssecMode dnssec_mode;
 391         DnsOverTlsMode dns_over_tls_mode;
 392         Set *dnssec_negative_trust_anchors;
 393
 394         /* NTP */
 395         char **ntp;
 396 };
 397
 398 Network *network_ref(Network *network);
 399 Network *network_unref(Network *network);
 400 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 401
 402 int network_load(Manager *manager, OrderedHashmap **networks);
 403 int network_reload(Manager *manager);
 404 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 405 int network_verify(Network *network);
 406
 407 int manager_build_dhcp_pd_subnet_ids(Manager *manager);
 408
 409 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 410 void network_apply_anonymize_if_set(Network *network);
 411
 412 bool network_has_static_ipv6_configurations(Network *network);
 413
 414 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 415 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 416 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 417 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 418 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 419 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 420 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 421 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 422 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online);
 423 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 424 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy);
 425 CONFIG_PARSER_PROTOTYPE(config_parse_link_group);
 426 CONFIG_PARSER_PROTOTYPE(config_parse_ignore_carrier_loss);
 427
 428 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 429
 430 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 431 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 432
 433 const char* activation_policy_to_string(ActivationPolicy i) _const_;
 434 ActivationPolicy activation_policy_from_string(const char *s) _pure_;