src/network/networkd-network.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <linux/nl80211.h>
   5
   6 #include "sd-bus.h"
   7 #include "sd-device.h"
   8 #include "sd-ipv4acd.h"
   9
  10 #include "bridge.h"
  11 #include "condition.h"
  12 #include "conf-parser.h"
  13 #include "hashmap.h"
  14 #include "netdev.h"
  15 #include "networkd-address-label.h"
  16 #include "networkd-address.h"
  17 #include "networkd-brvlan.h"
  18 #include "networkd-dhcp-common.h"
  19 #include "networkd-dhcp4.h"
  20 #include "networkd-dhcp-server.h"
  21 #include "networkd-fdb.h"
  22 #include "networkd-ipv6-proxy-ndp.h"
  23 #include "networkd-lldp-rx.h"
  24 #include "networkd-lldp-tx.h"
  25 #include "networkd-ndisc.h"
  26 #include "networkd-neighbor.h"
  27 #include "networkd-nexthop.h"
  28 #include "networkd-radv.h"
  29 #include "networkd-route.h"
  30 #include "networkd-routing-policy-rule.h"
  31 #include "networkd-util.h"
  32 #include "ordered-set.h"
  33 #include "resolve-util.h"
  34
  35 typedef enum IPv6PrivacyExtensions {
  36         /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
  37         IPV6_PRIVACY_EXTENSIONS_NO,
  38         IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC,
  39         IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */
  40         _IPV6_PRIVACY_EXTENSIONS_MAX,
  41         _IPV6_PRIVACY_EXTENSIONS_INVALID = -1,
  42 } IPv6PrivacyExtensions;
  43
  44 typedef enum KeepConfiguration {
  45         KEEP_CONFIGURATION_NO            = 0,
  46         KEEP_CONFIGURATION_DHCP_ON_START = 1 << 0,
  47         KEEP_CONFIGURATION_DHCP_ON_STOP  = 1 << 1,
  48         KEEP_CONFIGURATION_DHCP          = KEEP_CONFIGURATION_DHCP_ON_START | KEEP_CONFIGURATION_DHCP_ON_STOP,
  49         KEEP_CONFIGURATION_STATIC        = 1 << 2,
  50         KEEP_CONFIGURATION_YES           = KEEP_CONFIGURATION_DHCP | KEEP_CONFIGURATION_STATIC,
  51         _KEEP_CONFIGURATION_MAX,
  52         _KEEP_CONFIGURATION_INVALID = -1,
  53 } KeepConfiguration;
  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         char *filename;
  67         char *name;
  68         usec_t timestamp;
  69
  70         unsigned n_ref;
  71
  72         Set *match_mac;
  73         Set *match_permanent_mac;
  74         char **match_path;
  75         char **match_driver;
  76         char **match_type;
  77         char **match_name;
  78         char **match_property;
  79         char **match_wlan_iftype;
  80         char **match_ssid;
  81         Set *match_bssid;
  82         LIST_HEAD(Condition, conditions);
  83
  84         char *description;
  85
  86         NetDev *bridge;
  87         NetDev *bond;
  88         NetDev *vrf;
  89         NetDev *xfrm;
  90         Hashmap *stacked_netdevs;
  91         char *bridge_name;
  92         char *bond_name;
  93         char *vrf_name;
  94         Hashmap *stacked_netdev_names;
  95
  96         /* DHCP Client Support */
  97         AddressFamily dhcp;
  98         DHCPClientIdentifier dhcp_client_identifier;
  99         char *dhcp_vendor_class_identifier;
 100         char *dhcp_mudurl;
 101         char **dhcp_user_class;
 102         char *dhcp_hostname;
 103         uint64_t dhcp_max_attempts;
 104         uint32_t dhcp_route_metric;
 105         bool dhcp_route_metric_set;
 106         uint32_t dhcp_route_table;
 107         uint32_t dhcp_fallback_lease_lifetime;
 108         uint32_t dhcp_route_mtu;
 109         uint16_t dhcp_client_port;
 110         int dhcp_critical;
 111         int ip_service_type;
 112         bool dhcp_anonymize;
 113         bool dhcp_send_hostname;
 114         bool dhcp_broadcast;
 115         bool dhcp_use_dns;
 116         bool dhcp_use_dns_set;
 117         bool dhcp_routes_to_dns;
 118         bool dhcp_use_ntp;
 119         bool dhcp_use_ntp_set;
 120         bool dhcp_use_sip;
 121         bool dhcp_use_mtu;
 122         bool dhcp_use_routes;
 123         int dhcp_use_gateway;
 124         bool dhcp_use_timezone;
 125         bool rapid_commit;
 126         bool dhcp_use_hostname;
 127         bool dhcp_route_table_set;
 128         bool dhcp_send_release;
 129         bool dhcp_send_decline;
 130         DHCPUseDomains dhcp_use_domains;
 131         sd_ipv4acd *dhcp_acd;
 132         Set *dhcp_black_listed_ip;
 133         Set *dhcp_request_options;
 134         OrderedHashmap *dhcp_client_send_options;
 135         OrderedHashmap *dhcp_client_send_vendor_options;
 136         OrderedHashmap *dhcp_server_send_options;
 137         OrderedHashmap *dhcp_server_send_vendor_options;
 138
 139         /* DHCPv6 Client support*/
 140         bool dhcp6_use_dns;
 141         bool dhcp6_use_dns_set;
 142         bool dhcp6_use_ntp;
 143         bool dhcp6_use_ntp_set;
 144         bool dhcp6_without_ra;
 145         uint8_t dhcp6_pd_length;
 146         uint32_t dhcp6_route_metric;
 147         bool dhcp6_route_metric_set;
 148         char *dhcp6_mudurl;
 149         char **dhcp6_user_class;
 150         char **dhcp6_vendor_class;
 151         struct in6_addr dhcp6_pd_address;
 152         OrderedHashmap *dhcp6_client_send_options;
 153         OrderedHashmap *dhcp6_client_send_vendor_options;
 154         Set *dhcp6_request_options;
 155
 156         /* DHCP Server Support */
 157         bool dhcp_server;
 158         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 159         bool dhcp_server_emit_router;
 160         bool dhcp_server_emit_timezone;
 161         char *dhcp_server_timezone;
 162         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 163         uint32_t dhcp_server_pool_offset;
 164         uint32_t dhcp_server_pool_size;
 165
 166         /* IPV4LL Support */
 167         AddressFamily link_local;
 168         bool ipv4ll_route;
 169
 170         bool default_route_on_device;
 171
 172         /* IPv6 prefix delegation support */
 173         RADVPrefixDelegation router_prefix_delegation;
 174         int64_t router_prefix_subnet_id;
 175         usec_t router_lifetime_usec;
 176         uint8_t router_preference;
 177         bool router_managed;
 178         bool router_other_information;
 179         bool router_emit_dns;
 180         bool router_emit_domains;
 181         usec_t router_dns_lifetime_usec;
 182         struct in6_addr *router_dns;
 183         unsigned n_router_dns;
 184         OrderedSet *router_search_domains;
 185         bool dhcp6_force_pd_other_information; /* Start DHCPv6 PD also when 'O'
 186                                                   RA flag is set, see RFC 7084,
 187                                                   WPD-4 */
 188         bool dhcp6_pd_assign_prefix;
 189         union in_addr_union dhcp6_delegation_prefix_token;
 190
 191         /* Bridge Support */
 192         int use_bpdu;
 193         int hairpin;
 194         int fast_leave;
 195         int allow_port_to_be_root;
 196         int unicast_flood;
 197         int multicast_flood;
 198         int multicast_to_unicast;
 199         int neighbor_suppression;
 200         int learning;
 201         int bridge_proxy_arp;
 202         int bridge_proxy_arp_wifi;
 203         uint32_t cost;
 204         uint16_t priority;
 205         MulticastRouter multicast_router;
 206
 207         bool use_br_vlan;
 208         uint16_t pvid;
 209         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 210         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 211
 212         /* CAN support */
 213         uint32_t can_bitrate;
 214         unsigned can_sample_point;
 215         uint32_t can_data_bitrate;
 216         unsigned can_data_sample_point;
 217         usec_t can_restart_us;
 218         int can_triple_sampling;
 219         int can_termination;
 220         int can_listen_only;
 221         int can_fd_mode;
 222         int can_non_iso;
 223
 224         AddressFamily ip_forward;
 225         bool ip_masquerade;
 226         int ipv4_accept_local;
 227
 228         int ipv6_accept_ra;
 229         int ipv6_dad_transmits;
 230         int ipv6_hop_limit;
 231         int ipv6_proxy_ndp;
 232         int proxy_arp;
 233         uint32_t ipv6_mtu;
 234
 235         bool ipv6_accept_ra_use_dns;
 236         bool ipv6_accept_ra_use_autonomous_prefix;
 237         bool ipv6_accept_ra_use_onlink_prefix;
 238         bool active_slave;
 239         bool primary_slave;
 240         bool ipv6_accept_ra_route_table_set;
 241         DHCPUseDomains ipv6_accept_ra_use_domains;
 242         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 243         uint32_t ipv6_accept_ra_route_table;
 244         Set *ndisc_black_listed_prefix;
 245         OrderedHashmap *ipv6_tokens;
 246
 247         IPv6PrivacyExtensions ipv6_privacy_extensions;
 248
 249         struct ether_addr *mac;
 250         uint32_t mtu;
 251         uint32_t group;
 252         int arp;
 253         int multicast;
 254         int allmulticast;
 255         bool unmanaged;
 256         bool configure_without_carrier;
 257         int ignore_carrier_loss;
 258         KeepConfiguration keep_configuration;
 259         LinkIPv6AddressGenMode ipv6_address_gen_mode;
 260         uint32_t iaid;
 261         DUID duid;
 262
 263         bool iaid_set;
 264
 265         bool required_for_online; /* Is this network required to be considered online? */
 266         LinkOperationalStateRange required_operstate_for_online;
 267
 268         /* LLDP support */
 269         LLDPMode lldp_mode; /* LLDP reception */
 270         LLDPEmit lldp_emit; /* LLDP transmission */
 271         char *lldp_mud;    /* LLDP MUD URL */
 272
 273         LIST_HEAD(Address, static_addresses);
 274         LIST_HEAD(Route, static_routes);
 275         LIST_HEAD(NextHop, static_nexthops);
 276         LIST_HEAD(FdbEntry, static_fdb_entries);
 277         LIST_HEAD(IPv6ProxyNDPAddress, ipv6_proxy_ndp_addresses);
 278         LIST_HEAD(Neighbor, neighbors);
 279         LIST_HEAD(AddressLabel, address_labels);
 280         LIST_HEAD(Prefix, static_prefixes);
 281         LIST_HEAD(RoutePrefix, static_route_prefixes);
 282         LIST_HEAD(RoutingPolicyRule, rules);
 283
 284         unsigned n_static_addresses;
 285         unsigned n_static_routes;
 286         unsigned n_static_nexthops;
 287         unsigned n_static_fdb_entries;
 288         unsigned n_ipv6_proxy_ndp_addresses;
 289         unsigned n_neighbors;
 290         unsigned n_address_labels;
 291         unsigned n_static_prefixes;
 292         unsigned n_static_route_prefixes;
 293         unsigned n_rules;
 294
 295         Hashmap *addresses_by_section;
 296         Hashmap *routes_by_section;
 297         Hashmap *nexthops_by_section;
 298         Hashmap *fdb_entries_by_section;
 299         Hashmap *neighbors_by_section;
 300         Hashmap *address_labels_by_section;
 301         Hashmap *prefixes_by_section;
 302         Hashmap *route_prefixes_by_section;
 303         Hashmap *rules_by_section;
 304         OrderedHashmap *tc_by_section;
 305
 306         /* All kinds of DNS configuration */
 307         struct in_addr_data *dns;
 308         unsigned n_dns;
 309         OrderedSet *search_domains, *route_domains;
 310
 311         int dns_default_route;
 312         ResolveSupport llmnr;
 313         ResolveSupport mdns;
 314         DnssecMode dnssec_mode;
 315         DnsOverTlsMode dns_over_tls_mode;
 316         Set *dnssec_negative_trust_anchors;
 317
 318         char **ntp;
 319         char **bind_carrier;
 320 };
 321
 322 Network *network_ref(Network *network);
 323 Network *network_unref(Network *network);
 324 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 325
 326 int network_load(Manager *manager, OrderedHashmap **networks);
 327 int network_reload(Manager *manager);
 328 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 329 int network_verify(Network *network);
 330
 331 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 332 int network_get(Manager *manager, unsigned short iftype, sd_device *device,
 333                 const char *ifname, char * const *alternative_names, const char *driver,
 334                 const struct ether_addr *mac, const struct ether_addr *permanent_mac,
 335                 enum nl80211_iftype wlan_iftype, const char *ssid, const struct ether_addr *bssid,
 336                 Network **ret);
 337 int network_apply(Network *network, Link *link);
 338 void network_apply_anonymize_if_set(Network *network);
 339
 340 bool network_has_static_ipv6_configurations(Network *network);
 341
 342 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 343 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 344 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token);
 345 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions);
 346 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 347 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 348 CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
 349 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 350 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 351 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 352 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 353 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 354
 355 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 356
 357 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 358 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 359
 360 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 361 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;