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 "hashmap.h"
  14 #include "ipoib.h"
  15 #include "net-condition.h"
  16 #include "netdev.h"
  17 #include "networkd-bridge-vlan.h"
  18 #include "networkd-dhcp-common.h"
  19 #include "networkd-dhcp4.h"
  20 #include "networkd-dhcp6.h"
  21 #include "networkd-ipv6ll.h"
  22 #include "networkd-lldp-rx.h"
  23 #include "networkd-ndisc.h"
  24 #include "networkd-radv.h"
  25 #include "networkd-sysctl.h"
  26 #include "networkd-util.h"
  27 #include "ordered-set.h"
  28 #include "resolve-util.h"
  29 #include "socket-netlink.h"
  30
  31 typedef enum KeepConfiguration {
  32         KEEP_CONFIGURATION_NO            = 0,
  33         KEEP_CONFIGURATION_DHCP_ON_START = 1 << 0,
  34         KEEP_CONFIGURATION_DHCP_ON_STOP  = 1 << 1,
  35         KEEP_CONFIGURATION_DHCP          = KEEP_CONFIGURATION_DHCP_ON_START | KEEP_CONFIGURATION_DHCP_ON_STOP,
  36         KEEP_CONFIGURATION_STATIC        = 1 << 2,
  37         KEEP_CONFIGURATION_YES           = KEEP_CONFIGURATION_DHCP | KEEP_CONFIGURATION_STATIC,
  38         _KEEP_CONFIGURATION_MAX,
  39         _KEEP_CONFIGURATION_INVALID = -EINVAL,
  40 } KeepConfiguration;
  41
  42 typedef enum ActivationPolicy {
  43         ACTIVATION_POLICY_UP,
  44         ACTIVATION_POLICY_ALWAYS_UP,
  45         ACTIVATION_POLICY_MANUAL,
  46         ACTIVATION_POLICY_ALWAYS_DOWN,
  47         ACTIVATION_POLICY_DOWN,
  48         ACTIVATION_POLICY_BOUND,
  49         _ACTIVATION_POLICY_MAX,
  50         _ACTIVATION_POLICY_INVALID = -EINVAL,
  51 } ActivationPolicy;
  52
  53 typedef struct Manager Manager;
  54
  55 typedef struct NetworkDHCPServerEmitAddress {
  56         bool emit;
  57         struct in_addr *addresses;
  58         size_t n_addresses;
  59 } NetworkDHCPServerEmitAddress;
  60
  61 struct Network {
  62         Manager *manager;
  63
  64         unsigned n_ref;
  65
  66         char *name;
  67         char *filename;
  68         Hashmap *stats_by_path;
  69         char *description;
  70
  71         /* [Match] section */
  72         NetMatch match;
  73         LIST_HEAD(Condition, conditions);
  74
  75         /* Master or stacked netdevs */
  76         bool keep_master;
  77         NetDev *batadv;
  78         NetDev *bridge;
  79         NetDev *bond;
  80         NetDev *vrf;
  81         NetDev *xfrm;
  82         Hashmap *stacked_netdevs;
  83         char *batadv_name;
  84         char *bridge_name;
  85         char *bond_name;
  86         char *vrf_name;
  87         Hashmap *stacked_netdev_names;
  88
  89         /* [Link] section */
  90         struct hw_addr_data hw_addr;
  91         uint32_t mtu;
  92         int32_t group;
  93         int arp;
  94         int multicast;
  95         int allmulticast;
  96         int promiscuous;
  97         bool unmanaged;
  98         int required_for_online; /* Is this network required to be considered online? */
  99         LinkOperationalStateRange required_operstate_for_online;
 100         AddressFamily required_family_for_online;
 101         ActivationPolicy activation_policy;
 102
 103         /* misc settings */
 104         bool configure_without_carrier;
 105         bool ignore_carrier_loss_set;
 106         usec_t ignore_carrier_loss_usec; /* timespan */
 107         KeepConfiguration keep_configuration;
 108         char **bind_carrier;
 109         bool default_route_on_device;
 110         AddressFamily ip_masquerade;
 111
 112         /* DHCP Client Support */
 113         AddressFamily dhcp;
 114         DHCPClientIdentifier dhcp_client_identifier;
 115         DUID dhcp_duid;
 116         uint32_t dhcp_iaid;
 117         bool dhcp_iaid_set;
 118         char *dhcp_vendor_class_identifier;
 119         char *dhcp_mudurl;
 120         char **dhcp_user_class;
 121         char *dhcp_hostname;
 122         char *dhcp_label;
 123         uint64_t dhcp_max_attempts;
 124         uint32_t dhcp_route_metric;
 125         bool dhcp_route_metric_set;
 126         uint32_t dhcp_route_table;
 127         bool dhcp_route_table_set;
 128         uint32_t dhcp_fallback_lease_lifetime;
 129         uint32_t dhcp_route_mtu;
 130         uint16_t dhcp_client_port;
 131         int dhcp_critical;
 132         int dhcp_ip_service_type;
 133         bool dhcp_anonymize;
 134         bool dhcp_send_hostname;
 135         int dhcp_broadcast;
 136         bool dhcp_use_dns;
 137         bool dhcp_use_dns_set;
 138         bool dhcp_routes_to_dns;
 139         bool dhcp_use_ntp;
 140         bool dhcp_use_ntp_set;
 141         bool dhcp_routes_to_ntp;
 142         bool dhcp_use_sip;
 143         bool dhcp_use_mtu;
 144         bool dhcp_use_routes;
 145         int dhcp_use_gateway;
 146         bool dhcp_use_timezone;
 147         bool dhcp_use_hostname;
 148         bool dhcp_use_6rd;
 149         bool dhcp_send_release;
 150         bool dhcp_send_decline;
 151         DHCPUseDomains dhcp_use_domains;
 152         bool dhcp_use_domains_set;
 153         Set *dhcp_deny_listed_ip;
 154         Set *dhcp_allow_listed_ip;
 155         Set *dhcp_request_options;
 156         OrderedHashmap *dhcp_client_send_options;
 157         OrderedHashmap *dhcp_client_send_vendor_options;
 158
 159         /* DHCPv6 Client support */
 160         bool dhcp6_use_address;
 161         bool dhcp6_use_pd_prefix;
 162         bool dhcp6_use_dns;
 163         bool dhcp6_use_dns_set;
 164         bool dhcp6_use_hostname;
 165         bool dhcp6_use_ntp;
 166         bool dhcp6_use_ntp_set;
 167         DHCPUseDomains dhcp6_use_domains;
 168         bool dhcp6_use_domains_set;
 169         uint32_t dhcp6_iaid;
 170         bool dhcp6_iaid_set;
 171         bool dhcp6_iaid_set_explicitly;
 172         DUID dhcp6_duid;
 173         uint8_t dhcp6_pd_prefix_length;
 174         struct in6_addr dhcp6_pd_prefix_hint;
 175         char *dhcp6_mudurl;
 176         char **dhcp6_user_class;
 177         char **dhcp6_vendor_class;
 178         DHCP6ClientStartMode dhcp6_client_start_mode;
 179         OrderedHashmap *dhcp6_client_send_options;
 180         OrderedHashmap *dhcp6_client_send_vendor_options;
 181         Set *dhcp6_request_options;
 182
 183         /* DHCP Server Support */
 184         bool dhcp_server;
 185         bool dhcp_server_bind_to_interface;
 186         unsigned char dhcp_server_address_prefixlen;
 187         struct in_addr dhcp_server_address;
 188         int dhcp_server_uplink_index;
 189         char *dhcp_server_uplink_name;
 190         struct in_addr dhcp_server_relay_target;
 191         char *dhcp_server_relay_agent_circuit_id;
 192         char *dhcp_server_relay_agent_remote_id;
 193         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 194         bool dhcp_server_emit_router;
 195         struct in_addr dhcp_server_router;
 196         bool dhcp_server_emit_timezone;
 197         char *dhcp_server_timezone;
 198         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 199         uint32_t dhcp_server_pool_offset;
 200         uint32_t dhcp_server_pool_size;
 201         OrderedHashmap *dhcp_server_send_options;
 202         OrderedHashmap *dhcp_server_send_vendor_options;
 203         struct in_addr dhcp_server_boot_server_address;
 204         char *dhcp_server_boot_server_name;
 205         char *dhcp_server_boot_filename;
 206
 207         /* link local addressing support */
 208         AddressFamily link_local;
 209         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 210         struct in6_addr ipv6ll_stable_secret;
 211         bool ipv4ll_route;
 212
 213         /* IPv6 RA support */
 214         RADVPrefixDelegation router_prefix_delegation;
 215         usec_t router_lifetime_usec;
 216         uint8_t router_preference;
 217         bool router_managed;
 218         bool router_other_information;
 219         bool router_emit_dns;
 220         bool router_emit_domains;
 221         usec_t router_dns_lifetime_usec;
 222         struct in6_addr *router_dns;
 223         unsigned n_router_dns;
 224         OrderedSet *router_search_domains;
 225         int router_uplink_index;
 226         char *router_uplink_name;
 227
 228         /* DHCP Prefix Delegation support */
 229         int dhcp_pd;
 230         bool dhcp_pd_announce;
 231         bool dhcp_pd_assign;
 232         bool dhcp_pd_manage_temporary_address;
 233         int64_t dhcp_pd_subnet_id;
 234         uint32_t dhcp_pd_route_metric;
 235         Set *dhcp_pd_tokens;
 236         int dhcp_pd_uplink_index;
 237         char *dhcp_pd_uplink_name;
 238
 239         /* Bridge Support */
 240         int use_bpdu;
 241         int hairpin;
 242         int isolated;
 243         int fast_leave;
 244         int allow_port_to_be_root;
 245         int unicast_flood;
 246         int multicast_flood;
 247         int multicast_to_unicast;
 248         int neighbor_suppression;
 249         int learning;
 250         int bridge_proxy_arp;
 251         int bridge_proxy_arp_wifi;
 252         uint32_t cost;
 253         uint16_t priority;
 254         MulticastRouter multicast_router;
 255
 256         /* Bridge VLAN */
 257         bool use_br_vlan;
 258         uint16_t pvid;
 259         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 260         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 261
 262         /* CAN support */
 263         uint32_t can_bitrate;
 264         unsigned can_sample_point;
 265         nsec_t can_time_quanta_ns;
 266         uint32_t can_propagation_segment;
 267         uint32_t can_phase_buffer_segment_1;
 268         uint32_t can_phase_buffer_segment_2;
 269         uint32_t can_sync_jump_width;
 270         uint32_t can_data_bitrate;
 271         unsigned can_data_sample_point;
 272         nsec_t can_data_time_quanta_ns;
 273         uint32_t can_data_propagation_segment;
 274         uint32_t can_data_phase_buffer_segment_1;
 275         uint32_t can_data_phase_buffer_segment_2;
 276         uint32_t can_data_sync_jump_width;
 277         usec_t can_restart_us;
 278         uint32_t can_control_mode_mask;
 279         uint32_t can_control_mode_flags;
 280         uint16_t can_termination;
 281         bool can_termination_set;
 282
 283         /* IPoIB support */
 284         IPoIBMode ipoib_mode;
 285         int ipoib_umcast;
 286
 287         /* sysctl settings */
 288         AddressFamily ip_forward;
 289         int ipv4_accept_local;
 290         int ipv4_route_localnet;
 291         int ipv6_dad_transmits;
 292         int ipv6_hop_limit;
 293         int proxy_arp;
 294         uint32_t ipv6_mtu;
 295         IPv6PrivacyExtensions ipv6_privacy_extensions;
 296         int ipv6_proxy_ndp;
 297         Set *ipv6_proxy_ndp_addresses;
 298
 299         /* IPv6 accept RA */
 300         int ipv6_accept_ra;
 301         bool ipv6_accept_ra_use_dns;
 302         bool ipv6_accept_ra_use_gateway;
 303         bool ipv6_accept_ra_use_route_prefix;
 304         bool ipv6_accept_ra_use_autonomous_prefix;
 305         bool ipv6_accept_ra_use_onlink_prefix;
 306         bool ipv6_accept_ra_use_mtu;
 307         bool active_slave;
 308         bool primary_slave;
 309         DHCPUseDomains ipv6_accept_ra_use_domains;
 310         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 311         uint32_t ipv6_accept_ra_route_table;
 312         bool ipv6_accept_ra_route_table_set;
 313         uint32_t ipv6_accept_ra_route_metric;
 314         bool ipv6_accept_ra_route_metric_set;
 315         Set *ndisc_deny_listed_router;
 316         Set *ndisc_allow_listed_router;
 317         Set *ndisc_deny_listed_prefix;
 318         Set *ndisc_allow_listed_prefix;
 319         Set *ndisc_deny_listed_route_prefix;
 320         Set *ndisc_allow_listed_route_prefix;
 321         Set *ndisc_tokens;
 322
 323         /* LLDP support */
 324         LLDPMode lldp_mode; /* LLDP reception */
 325         sd_lldp_multicast_mode_t lldp_multicast_mode; /* LLDP transmission */
 326         char *lldp_mudurl;  /* LLDP MUD URL */
 327
 328         OrderedHashmap *addresses_by_section;
 329         Hashmap *routes_by_section;
 330         Hashmap *nexthops_by_section;
 331         Hashmap *bridge_fdb_entries_by_section;
 332         Hashmap *bridge_mdb_entries_by_section;
 333         Hashmap *neighbors_by_section;
 334         Hashmap *address_labels_by_section;
 335         Hashmap *prefixes_by_section;
 336         Hashmap *route_prefixes_by_section;
 337         Hashmap *rules_by_section;
 338         Hashmap *dhcp_static_leases_by_section;
 339         Hashmap *qdiscs_by_section;
 340         Hashmap *tclasses_by_section;
 341         OrderedHashmap *sr_iov_by_section;
 342
 343         /* All kinds of DNS configuration */
 344         struct in_addr_full **dns;
 345         unsigned n_dns;
 346         OrderedSet *search_domains, *route_domains;
 347         int dns_default_route;
 348         ResolveSupport llmnr;
 349         ResolveSupport mdns;
 350         DnssecMode dnssec_mode;
 351         DnsOverTlsMode dns_over_tls_mode;
 352         Set *dnssec_negative_trust_anchors;
 353
 354         /* NTP */
 355         char **ntp;
 356 };
 357
 358 Network *network_ref(Network *network);
 359 Network *network_unref(Network *network);
 360 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 361
 362 int network_load(Manager *manager, OrderedHashmap **networks);
 363 int network_reload(Manager *manager);
 364 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 365 int network_verify(Network *network);
 366
 367 int manager_build_dhcp_pd_subnet_ids(Manager *manager);
 368
 369 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 370 void network_apply_anonymize_if_set(Network *network);
 371
 372 bool network_has_static_ipv6_configurations(Network *network);
 373
 374 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 375 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 376 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 377 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 378 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 379 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 380 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 381 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 382 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online);
 383 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 384 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy);
 385 CONFIG_PARSER_PROTOTYPE(config_parse_link_group);
 386 CONFIG_PARSER_PROTOTYPE(config_parse_ignore_carrier_loss);
 387
 388 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 389
 390 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 391 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 392
 393 const char* activation_policy_to_string(ActivationPolicy i) _const_;
 394 ActivationPolicy activation_policy_from_string(const char *s) _pure_;