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
   9 #include "bridge.h"
  10 #include "condition.h"
  11 #include "conf-parser.h"
  12 #include "hashmap.h"
  13 #include "net-condition.h"
  14 #include "netdev.h"
  15 #include "networkd-brvlan.h"
  16 #include "networkd-dhcp-common.h"
  17 #include "networkd-dhcp4.h"
  18 #include "networkd-dhcp6.h"
  19 #include "networkd-dhcp-server.h"
  20 #include "networkd-lldp-rx.h"
  21 #include "networkd-lldp-tx.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         usec_t timestamp;
  77         char *description;
  78
  79         /* [Match] section */
  80         NetMatch match;
  81         LIST_HEAD(Condition, conditions);
  82
  83         /* Master or stacked netdevs */
  84         NetDev *batadv;
  85         NetDev *bridge;
  86         NetDev *bond;
  87         NetDev *vrf;
  88         NetDev *xfrm;
  89         Hashmap *stacked_netdevs;
  90         char *batadv_name;
  91         char *bridge_name;
  92         char *bond_name;
  93         char *vrf_name;
  94         Hashmap *stacked_netdev_names;
  95
  96         /* [Link] section */
  97         struct ether_addr *mac;
  98         uint32_t mtu;
  99         uint32_t group;
 100         int arp;
 101         int multicast;
 102         int allmulticast;
 103         int promiscuous;
 104         bool unmanaged;
 105         bool required_for_online; /* Is this network required to be considered online? */
 106         LinkOperationalStateRange required_operstate_for_online;
 107         AddressFamily required_family_for_online;
 108         ActivationPolicy activation_policy;
 109
 110         /* misc settings */
 111         bool configure_without_carrier;
 112         int ignore_carrier_loss;
 113         KeepConfiguration keep_configuration;
 114         char **bind_carrier;
 115         bool default_route_on_device;
 116         AddressFamily ip_masquerade;
 117
 118         /* DHCP Client Support */
 119         AddressFamily dhcp;
 120         DHCPClientIdentifier dhcp_client_identifier;
 121         DUID dhcp_duid;
 122         uint32_t dhcp_iaid;
 123         bool dhcp_iaid_set;
 124         char *dhcp_vendor_class_identifier;
 125         char *dhcp_mudurl;
 126         char **dhcp_user_class;
 127         char *dhcp_hostname;
 128         uint64_t dhcp_max_attempts;
 129         uint32_t dhcp_route_metric;
 130         bool dhcp_route_metric_set;
 131         uint32_t dhcp_route_table;
 132         uint32_t dhcp_fallback_lease_lifetime;
 133         uint32_t dhcp_route_mtu;
 134         uint16_t dhcp_client_port;
 135         int dhcp_critical;
 136         int dhcp_ip_service_type;
 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_mtu;
 148         bool dhcp_use_routes;
 149         int dhcp_use_gateway;
 150         bool dhcp_use_timezone;
 151         bool dhcp_use_hostname;
 152         bool dhcp_route_table_set;
 153         bool dhcp_send_release;
 154         bool dhcp_send_decline;
 155         DHCPUseDomains dhcp_use_domains;
 156         bool dhcp_use_domains_set;
 157         Set *dhcp_deny_listed_ip;
 158         Set *dhcp_allow_listed_ip;
 159         Set *dhcp_request_options;
 160         OrderedHashmap *dhcp_client_send_options;
 161         OrderedHashmap *dhcp_client_send_vendor_options;
 162
 163         /* DHCPv6 Client support*/
 164         bool dhcp6_use_address;
 165         bool dhcp6_use_dns;
 166         bool dhcp6_use_dns_set;
 167         bool dhcp6_use_hostname;
 168         bool dhcp6_use_ntp;
 169         bool dhcp6_use_ntp_set;
 170         bool dhcp6_rapid_commit;
 171         DHCPUseDomains dhcp6_use_domains;
 172         bool dhcp6_use_domains_set;
 173         uint32_t dhcp6_iaid;
 174         bool dhcp6_iaid_set;
 175         bool dhcp6_iaid_set_explicitly;
 176         DUID dhcp6_duid;
 177         uint8_t dhcp6_pd_length;
 178         char *dhcp6_mudurl;
 179         char **dhcp6_user_class;
 180         char **dhcp6_vendor_class;
 181         struct in6_addr dhcp6_pd_address;
 182         DHCP6ClientStartMode dhcp6_without_ra;
 183         OrderedHashmap *dhcp6_client_send_options;
 184         OrderedHashmap *dhcp6_client_send_vendor_options;
 185         Set *dhcp6_request_options;
 186         /* Start DHCPv6 PD also when 'O' RA flag is set, see RFC 7084, WPD-4 */
 187         bool dhcp6_force_pd_other_information;
 188
 189         /* DHCP Server Support */
 190         bool dhcp_server;
 191         bool dhcp_server_bind_to_interface;
 192         unsigned char dhcp_server_address_prefixlen;
 193         struct in_addr dhcp_server_address;
 194         struct in_addr dhcp_server_relay_target;
 195         char *dhcp_server_relay_agent_circuit_id;
 196         char *dhcp_server_relay_agent_remote_id;
 197         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 198         bool dhcp_server_emit_router;
 199         bool dhcp_server_emit_timezone;
 200         char *dhcp_server_timezone;
 201         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 202         uint32_t dhcp_server_pool_offset;
 203         uint32_t dhcp_server_pool_size;
 204         OrderedHashmap *dhcp_server_send_options;
 205         OrderedHashmap *dhcp_server_send_vendor_options;
 206
 207         /* link local addressing support */
 208         AddressFamily link_local;
 209         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 210         bool ipv4ll_route;
 211
 212         /* IPv6 RA support */
 213         RADVPrefixDelegation router_prefix_delegation;
 214         usec_t router_lifetime_usec;
 215         uint8_t router_preference;
 216         bool router_managed;
 217         bool router_other_information;
 218         bool router_emit_dns;
 219         bool router_emit_domains;
 220         usec_t router_dns_lifetime_usec;
 221         struct in6_addr *router_dns;
 222         unsigned n_router_dns;
 223         OrderedSet *router_search_domains;
 224
 225         /* DHCPv6 Prefix Delegation support */
 226         int dhcp6_pd;
 227         bool dhcp6_pd_announce;
 228         bool dhcp6_pd_assign;
 229         bool dhcp6_pd_manage_temporary_address;
 230         int64_t dhcp6_pd_subnet_id;
 231         uint32_t dhcp6_pd_route_metric;
 232         struct in6_addr dhcp6_pd_token;
 233
 234         /* Bridge Support */
 235         int use_bpdu;
 236         int hairpin;
 237         int fast_leave;
 238         int allow_port_to_be_root;
 239         int unicast_flood;
 240         int multicast_flood;
 241         int multicast_to_unicast;
 242         int neighbor_suppression;
 243         int learning;
 244         int bridge_proxy_arp;
 245         int bridge_proxy_arp_wifi;
 246         uint32_t cost;
 247         uint16_t priority;
 248         MulticastRouter multicast_router;
 249
 250         /* Bridge VLAN */
 251         bool use_br_vlan;
 252         uint16_t pvid;
 253         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 254         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 255
 256         /* CAN support */
 257         uint32_t can_bitrate;
 258         unsigned can_sample_point;
 259         uint32_t can_data_bitrate;
 260         unsigned can_data_sample_point;
 261         usec_t can_restart_us;
 262         int can_triple_sampling;
 263         int can_berr_reporting;
 264         int can_termination;
 265         int can_listen_only;
 266         int can_fd_mode;
 267         int can_non_iso;
 268
 269         /* sysctl settings */
 270         AddressFamily ip_forward;
 271         int ipv4_accept_local;
 272         int ipv4_route_localnet;
 273         int ipv6_dad_transmits;
 274         int ipv6_hop_limit;
 275         int proxy_arp;
 276         uint32_t ipv6_mtu;
 277         IPv6PrivacyExtensions ipv6_privacy_extensions;
 278         int ipv6_proxy_ndp;
 279         Set *ipv6_proxy_ndp_addresses;
 280
 281         /* IPv6 accept RA */
 282         int ipv6_accept_ra;
 283         bool ipv6_accept_ra_use_dns;
 284         bool ipv6_accept_ra_use_autonomous_prefix;
 285         bool ipv6_accept_ra_use_onlink_prefix;
 286         bool active_slave;
 287         bool primary_slave;
 288         DHCPUseDomains ipv6_accept_ra_use_domains;
 289         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 290         uint32_t ipv6_accept_ra_route_table;
 291         bool ipv6_accept_ra_route_table_set;
 292         uint32_t ipv6_accept_ra_route_metric;
 293         bool ipv6_accept_ra_route_metric_set;
 294         Set *ndisc_deny_listed_router;
 295         Set *ndisc_allow_listed_router;
 296         Set *ndisc_deny_listed_prefix;
 297         Set *ndisc_allow_listed_prefix;
 298         Set *ndisc_deny_listed_route_prefix;
 299         Set *ndisc_allow_listed_route_prefix;
 300         OrderedSet *ipv6_tokens;
 301
 302         /* LLDP support */
 303         LLDPMode lldp_mode; /* LLDP reception */
 304         LLDPEmit lldp_emit; /* LLDP transmission */
 305         char *lldp_mud;    /* LLDP MUD URL */
 306
 307         OrderedHashmap *addresses_by_section;
 308         Hashmap *routes_by_section;
 309         Hashmap *nexthops_by_section;
 310         Hashmap *bridge_fdb_entries_by_section;
 311         Hashmap *mdb_entries_by_section;
 312         Hashmap *neighbors_by_section;
 313         Hashmap *address_labels_by_section;
 314         Hashmap *prefixes_by_section;
 315         Hashmap *route_prefixes_by_section;
 316         Hashmap *rules_by_section;
 317         OrderedHashmap *tc_by_section;
 318         OrderedHashmap *sr_iov_by_section;
 319
 320         /* All kinds of DNS configuration */
 321         struct in_addr_full **dns;
 322         unsigned n_dns;
 323         OrderedSet *search_domains, *route_domains;
 324         int dns_default_route;
 325         ResolveSupport llmnr;
 326         ResolveSupport mdns;
 327         DnssecMode dnssec_mode;
 328         DnsOverTlsMode dns_over_tls_mode;
 329         Set *dnssec_negative_trust_anchors;
 330
 331         /* NTP */
 332         char **ntp;
 333 };
 334
 335 Network *network_ref(Network *network);
 336 Network *network_unref(Network *network);
 337 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 338
 339 int network_load(Manager *manager, OrderedHashmap **networks);
 340 int network_reload(Manager *manager);
 341 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 342 int network_verify(Network *network);
 343
 344 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 345 void network_apply_anonymize_if_set(Network *network);
 346
 347 bool network_has_static_ipv6_configurations(Network *network);
 348
 349 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 350 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 351 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 352 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 353 CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
 354 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 355 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 356 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 357 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 358 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online);
 359 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 360 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_link_local_address_gen_mode);
 361 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy);
 362
 363 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 364
 365 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 366 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 367
 368 const char* ipv6_link_local_address_gen_mode_to_string(IPv6LinkLocalAddressGenMode s) _const_;
 369 IPv6LinkLocalAddressGenMode ipv6_link_local_address_gen_mode_from_string(const char *s) _pure_;
 370
 371 const char* activation_policy_to_string(ActivationPolicy i) _const_;
 372 ActivationPolicy activation_policy_from_string(const char *s) _pure_;