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-lldp-rx.h"
  22 #include "networkd-ndisc.h"
  23 #include "networkd-radv.h"
  24 #include "networkd-sysctl.h"
  25 #include "networkd-util.h"
  26 #include "ordered-set.h"
  27 #include "resolve-util.h"
  28 #include "socket-netlink.h"
  29
  30 typedef enum KeepConfiguration {
  31         KEEP_CONFIGURATION_NO            = 0,
  32         KEEP_CONFIGURATION_DHCP_ON_START = 1 << 0,
  33         KEEP_CONFIGURATION_DHCP_ON_STOP  = 1 << 1,
  34         KEEP_CONFIGURATION_DHCP          = KEEP_CONFIGURATION_DHCP_ON_START | KEEP_CONFIGURATION_DHCP_ON_STOP,
  35         KEEP_CONFIGURATION_STATIC        = 1 << 2,
  36         KEEP_CONFIGURATION_YES           = KEEP_CONFIGURATION_DHCP | KEEP_CONFIGURATION_STATIC,
  37         _KEEP_CONFIGURATION_MAX,
  38         _KEEP_CONFIGURATION_INVALID = -EINVAL,
  39 } KeepConfiguration;
  40
  41 typedef enum IPv6LinkLocalAddressGenMode {
  42        IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_EUI64          = IN6_ADDR_GEN_MODE_EUI64,
  43        IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_NONE           = IN6_ADDR_GEN_MODE_NONE,
  44        IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_STABLE_PRIVACY = IN6_ADDR_GEN_MODE_STABLE_PRIVACY,
  45        IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_RANDOM         = IN6_ADDR_GEN_MODE_RANDOM,
  46        _IPV6_LINK_LOCAL_ADDRESS_GEN_MODE_MAX,
  47        _IPV6_LINK_LOCAL_ADDRESS_GEN_MODE_INVALID        = -EINVAL,
  48 } IPv6LinkLocalAddressGenMode;
  49
  50 typedef enum ActivationPolicy {
  51         ACTIVATION_POLICY_UP,
  52         ACTIVATION_POLICY_ALWAYS_UP,
  53         ACTIVATION_POLICY_MANUAL,
  54         ACTIVATION_POLICY_ALWAYS_DOWN,
  55         ACTIVATION_POLICY_DOWN,
  56         ACTIVATION_POLICY_BOUND,
  57         _ACTIVATION_POLICY_MAX,
  58         _ACTIVATION_POLICY_INVALID = -EINVAL,
  59 } ActivationPolicy;
  60
  61 typedef struct Manager Manager;
  62
  63 typedef struct NetworkDHCPServerEmitAddress {
  64         bool emit;
  65         struct in_addr *addresses;
  66         size_t n_addresses;
  67 } NetworkDHCPServerEmitAddress;
  68
  69 struct Network {
  70         Manager *manager;
  71
  72         unsigned n_ref;
  73
  74         char *name;
  75         char *filename;
  76         Hashmap *stats_by_path;
  77         char *description;
  78
  79         /* [Match] section */
  80         NetMatch match;
  81         LIST_HEAD(Condition, conditions);
  82
  83         /* Master or stacked netdevs */
  84         bool keep_master;
  85         NetDev *batadv;
  86         NetDev *bridge;
  87         NetDev *bond;
  88         NetDev *vrf;
  89         NetDev *xfrm;
  90         Hashmap *stacked_netdevs;
  91         char *batadv_name;
  92         char *bridge_name;
  93         char *bond_name;
  94         char *vrf_name;
  95         Hashmap *stacked_netdev_names;
  96
  97         /* [Link] section */
  98         struct hw_addr_data hw_addr;
  99         uint32_t mtu;
 100         int32_t group;
 101         int arp;
 102         int multicast;
 103         int allmulticast;
 104         int promiscuous;
 105         bool unmanaged;
 106         int required_for_online; /* Is this network required to be considered online? */
 107         LinkOperationalStateRange required_operstate_for_online;
 108         AddressFamily required_family_for_online;
 109         ActivationPolicy activation_policy;
 110
 111         /* misc settings */
 112         bool configure_without_carrier;
 113         bool ignore_carrier_loss_set;
 114         usec_t ignore_carrier_loss_usec; /* timespan */
 115         KeepConfiguration keep_configuration;
 116         char **bind_carrier;
 117         bool default_route_on_device;
 118         AddressFamily ip_masquerade;
 119
 120         /* DHCP Client Support */
 121         AddressFamily dhcp;
 122         DHCPClientIdentifier dhcp_client_identifier;
 123         DUID dhcp_duid;
 124         uint32_t dhcp_iaid;
 125         bool dhcp_iaid_set;
 126         char *dhcp_vendor_class_identifier;
 127         char *dhcp_mudurl;
 128         char **dhcp_user_class;
 129         char *dhcp_hostname;
 130         char *dhcp_label;
 131         uint64_t dhcp_max_attempts;
 132         uint32_t dhcp_route_metric;
 133         bool dhcp_route_metric_set;
 134         uint32_t dhcp_route_table;
 135         bool dhcp_route_table_set;
 136         uint32_t dhcp_fallback_lease_lifetime;
 137         uint32_t dhcp_route_mtu;
 138         uint16_t dhcp_client_port;
 139         int dhcp_critical;
 140         int dhcp_ip_service_type;
 141         bool dhcp_anonymize;
 142         bool dhcp_send_hostname;
 143         int dhcp_broadcast;
 144         bool dhcp_use_dns;
 145         bool dhcp_use_dns_set;
 146         bool dhcp_routes_to_dns;
 147         bool dhcp_use_ntp;
 148         bool dhcp_use_ntp_set;
 149         bool dhcp_routes_to_ntp;
 150         bool dhcp_use_sip;
 151         bool dhcp_use_mtu;
 152         bool dhcp_use_routes;
 153         int dhcp_use_gateway;
 154         bool dhcp_use_timezone;
 155         bool dhcp_use_hostname;
 156         bool dhcp_send_release;
 157         bool dhcp_send_decline;
 158         DHCPUseDomains dhcp_use_domains;
 159         bool dhcp_use_domains_set;
 160         Set *dhcp_deny_listed_ip;
 161         Set *dhcp_allow_listed_ip;
 162         Set *dhcp_request_options;
 163         OrderedHashmap *dhcp_client_send_options;
 164         OrderedHashmap *dhcp_client_send_vendor_options;
 165
 166         /* DHCPv6 Client support */
 167         bool dhcp6_use_address;
 168         bool dhcp6_use_pd_prefix;
 169         bool dhcp6_use_dns;
 170         bool dhcp6_use_dns_set;
 171         bool dhcp6_use_hostname;
 172         bool dhcp6_use_ntp;
 173         bool dhcp6_use_ntp_set;
 174         DHCPUseDomains dhcp6_use_domains;
 175         bool dhcp6_use_domains_set;
 176         uint32_t dhcp6_iaid;
 177         bool dhcp6_iaid_set;
 178         bool dhcp6_iaid_set_explicitly;
 179         DUID dhcp6_duid;
 180         uint8_t dhcp6_pd_prefix_length;
 181         struct in6_addr dhcp6_pd_prefix_hint;
 182         char *dhcp6_mudurl;
 183         char **dhcp6_user_class;
 184         char **dhcp6_vendor_class;
 185         DHCP6ClientStartMode dhcp6_client_start_mode;
 186         OrderedHashmap *dhcp6_client_send_options;
 187         OrderedHashmap *dhcp6_client_send_vendor_options;
 188         Set *dhcp6_request_options;
 189
 190         /* DHCP Server Support */
 191         bool dhcp_server;
 192         bool dhcp_server_bind_to_interface;
 193         unsigned char dhcp_server_address_prefixlen;
 194         struct in_addr dhcp_server_address;
 195         int dhcp_server_uplink_index;
 196         char *dhcp_server_uplink_name;
 197         struct in_addr dhcp_server_relay_target;
 198         char *dhcp_server_relay_agent_circuit_id;
 199         char *dhcp_server_relay_agent_remote_id;
 200         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 201         bool dhcp_server_emit_router;
 202         struct in_addr dhcp_server_router;
 203         bool dhcp_server_emit_timezone;
 204         char *dhcp_server_timezone;
 205         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 206         uint32_t dhcp_server_pool_offset;
 207         uint32_t dhcp_server_pool_size;
 208         OrderedHashmap *dhcp_server_send_options;
 209         OrderedHashmap *dhcp_server_send_vendor_options;
 210
 211         /* link local addressing support */
 212         AddressFamily link_local;
 213         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 214         struct in6_addr ipv6ll_stable_secret;
 215         bool ipv4ll_route;
 216
 217         /* IPv6 RA support */
 218         RADVPrefixDelegation router_prefix_delegation;
 219         usec_t router_lifetime_usec;
 220         uint8_t router_preference;
 221         bool router_managed;
 222         bool router_other_information;
 223         bool router_emit_dns;
 224         bool router_emit_domains;
 225         usec_t router_dns_lifetime_usec;
 226         struct in6_addr *router_dns;
 227         unsigned n_router_dns;
 228         OrderedSet *router_search_domains;
 229         int router_uplink_index;
 230         char *router_uplink_name;
 231
 232         /* DHCPv6 Prefix Delegation support */
 233         int dhcp6_pd;
 234         bool dhcp6_pd_announce;
 235         bool dhcp6_pd_assign;
 236         bool dhcp6_pd_manage_temporary_address;
 237         int64_t dhcp6_pd_subnet_id;
 238         uint32_t dhcp6_pd_route_metric;
 239         Set *dhcp6_pd_tokens;
 240         int dhcp6_pd_uplink_index;
 241         char *dhcp6_pd_uplink_name;
 242
 243         /* Bridge Support */
 244         int use_bpdu;
 245         int hairpin;
 246         int fast_leave;
 247         int allow_port_to_be_root;
 248         int unicast_flood;
 249         int multicast_flood;
 250         int multicast_to_unicast;
 251         int neighbor_suppression;
 252         int learning;
 253         int bridge_proxy_arp;
 254         int bridge_proxy_arp_wifi;
 255         uint32_t cost;
 256         uint16_t priority;
 257         MulticastRouter multicast_router;
 258
 259         /* Bridge VLAN */
 260         bool use_br_vlan;
 261         uint16_t pvid;
 262         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 263         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 264
 265         /* CAN support */
 266         uint32_t can_bitrate;
 267         unsigned can_sample_point;
 268         nsec_t can_time_quanta_ns;
 269         uint32_t can_propagation_segment;
 270         uint32_t can_phase_buffer_segment_1;
 271         uint32_t can_phase_buffer_segment_2;
 272         uint32_t can_sync_jump_width;
 273         uint32_t can_data_bitrate;
 274         unsigned can_data_sample_point;
 275         nsec_t can_data_time_quanta_ns;
 276         uint32_t can_data_propagation_segment;
 277         uint32_t can_data_phase_buffer_segment_1;
 278         uint32_t can_data_phase_buffer_segment_2;
 279         uint32_t can_data_sync_jump_width;
 280         usec_t can_restart_us;
 281         uint32_t can_control_mode_mask;
 282         uint32_t can_control_mode_flags;
 283         uint16_t can_termination;
 284         bool can_termination_set;
 285
 286         /* IPoIB support */
 287         IPoIBMode ipoib_mode;
 288         int ipoib_umcast;
 289
 290         /* sysctl settings */
 291         AddressFamily ip_forward;
 292         int ipv4_accept_local;
 293         int ipv4_route_localnet;
 294         int ipv6_dad_transmits;
 295         int ipv6_hop_limit;
 296         int proxy_arp;
 297         uint32_t ipv6_mtu;
 298         IPv6PrivacyExtensions ipv6_privacy_extensions;
 299         int ipv6_proxy_ndp;
 300         Set *ipv6_proxy_ndp_addresses;
 301
 302         /* IPv6 accept RA */
 303         int ipv6_accept_ra;
 304         bool ipv6_accept_ra_use_dns;
 305         bool ipv6_accept_ra_use_gateway;
 306         bool ipv6_accept_ra_use_route_prefix;
 307         bool ipv6_accept_ra_use_autonomous_prefix;
 308         bool ipv6_accept_ra_use_onlink_prefix;
 309         bool ipv6_accept_ra_use_mtu;
 310         bool active_slave;
 311         bool primary_slave;
 312         DHCPUseDomains ipv6_accept_ra_use_domains;
 313         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 314         uint32_t ipv6_accept_ra_route_table;
 315         bool ipv6_accept_ra_route_table_set;
 316         uint32_t ipv6_accept_ra_route_metric;
 317         bool ipv6_accept_ra_route_metric_set;
 318         Set *ndisc_deny_listed_router;
 319         Set *ndisc_allow_listed_router;
 320         Set *ndisc_deny_listed_prefix;
 321         Set *ndisc_allow_listed_prefix;
 322         Set *ndisc_deny_listed_route_prefix;
 323         Set *ndisc_allow_listed_route_prefix;
 324         Set *ndisc_tokens;
 325
 326         /* LLDP support */
 327         LLDPMode lldp_mode; /* LLDP reception */
 328         sd_lldp_multicast_mode_t lldp_multicast_mode; /* LLDP transmission */
 329         char *lldp_mudurl;  /* LLDP MUD URL */
 330
 331         OrderedHashmap *addresses_by_section;
 332         Hashmap *routes_by_section;
 333         Hashmap *nexthops_by_section;
 334         Hashmap *bridge_fdb_entries_by_section;
 335         Hashmap *bridge_mdb_entries_by_section;
 336         Hashmap *neighbors_by_section;
 337         Hashmap *address_labels_by_section;
 338         Hashmap *prefixes_by_section;
 339         Hashmap *route_prefixes_by_section;
 340         Hashmap *rules_by_section;
 341         Hashmap *dhcp_static_leases_by_section;
 342         OrderedHashmap *tc_by_section;
 343         OrderedHashmap *sr_iov_by_section;
 344
 345         /* All kinds of DNS configuration */
 346         struct in_addr_full **dns;
 347         unsigned n_dns;
 348         OrderedSet *search_domains, *route_domains;
 349         int dns_default_route;
 350         ResolveSupport llmnr;
 351         ResolveSupport mdns;
 352         DnssecMode dnssec_mode;
 353         DnsOverTlsMode dns_over_tls_mode;
 354         Set *dnssec_negative_trust_anchors;
 355
 356         /* NTP */
 357         char **ntp;
 358 };
 359
 360 Network *network_ref(Network *network);
 361 Network *network_unref(Network *network);
 362 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 363
 364 int network_load(Manager *manager, OrderedHashmap **networks);
 365 int network_reload(Manager *manager);
 366 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 367 int network_verify(Network *network);
 368
 369 int manager_build_dhcp6_pd_subnet_ids(Manager *manager);
 370
 371 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 372 void network_apply_anonymize_if_set(Network *network);
 373
 374 bool network_has_static_ipv6_configurations(Network *network);
 375
 376 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 377 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 378 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 379 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 380 CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
 381 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 382 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 383 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 384 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 385 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online);
 386 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 387 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_link_local_address_gen_mode);
 388 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy);
 389 CONFIG_PARSER_PROTOTYPE(config_parse_link_group);
 390 CONFIG_PARSER_PROTOTYPE(config_parse_ignore_carrier_loss);
 391
 392 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 393
 394 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 395 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 396
 397 const char* ipv6_link_local_address_gen_mode_to_string(IPv6LinkLocalAddressGenMode s) _const_;
 398 IPv6LinkLocalAddressGenMode ipv6_link_local_address_gen_mode_from_string(const char *s) _pure_;
 399
 400 const char* activation_policy_to_string(ActivationPolicy i) _const_;
 401 ActivationPolicy activation_policy_from_string(const char *s) _pure_;