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 = -1,
  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        = -1
  48 } IPv6LinkLocalAddressGenMode;
  49
  50 typedef struct Manager Manager;
  51
  52 typedef struct NetworkDHCPServerEmitAddress {
  53         bool emit;
  54         struct in_addr *addresses;
  55         size_t n_addresses;
  56 } NetworkDHCPServerEmitAddress;
  57
  58 struct Network {
  59         Manager *manager;
  60
  61         unsigned n_ref;
  62
  63         char *name;
  64         char *filename;
  65         usec_t timestamp;
  66         char *description;
  67
  68         /* [Match] section */
  69         NetMatch match;
  70         LIST_HEAD(Condition, conditions);
  71
  72         /* Master or stacked netdevs */
  73         NetDev *bridge;
  74         NetDev *bond;
  75         NetDev *vrf;
  76         NetDev *xfrm;
  77         Hashmap *stacked_netdevs;
  78         char *bridge_name;
  79         char *bond_name;
  80         char *vrf_name;
  81         Hashmap *stacked_netdev_names;
  82
  83         /* [Link] section */
  84         struct ether_addr *mac;
  85         uint32_t mtu;
  86         uint32_t group;
  87         int arp;
  88         int multicast;
  89         int allmulticast;
  90         bool unmanaged;
  91         bool required_for_online; /* Is this network required to be considered online? */
  92         LinkOperationalStateRange required_operstate_for_online;
  93
  94         /* misc settings */
  95         bool configure_without_carrier;
  96         int ignore_carrier_loss;
  97         KeepConfiguration keep_configuration;
  98         char **bind_carrier;
  99         bool default_route_on_device;
 100         bool ip_masquerade;
 101
 102         /* DHCP Client Support */
 103         AddressFamily dhcp;
 104         DHCPClientIdentifier dhcp_client_identifier;
 105         DUID duid;
 106         uint32_t iaid;
 107         bool iaid_set;
 108         char *dhcp_vendor_class_identifier;
 109         char *dhcp_mudurl;
 110         char **dhcp_user_class;
 111         char *dhcp_hostname;
 112         uint64_t dhcp_max_attempts;
 113         uint32_t dhcp_route_metric;
 114         bool dhcp_route_metric_set;
 115         uint32_t dhcp_route_table;
 116         uint32_t dhcp_fallback_lease_lifetime;
 117         uint32_t dhcp_route_mtu;
 118         uint16_t dhcp_client_port;
 119         int dhcp_critical;
 120         int dhcp_ip_service_type;
 121         bool dhcp_anonymize;
 122         bool dhcp_send_hostname;
 123         bool dhcp_broadcast;
 124         bool dhcp_use_dns;
 125         bool dhcp_use_dns_set;
 126         bool dhcp_routes_to_dns;
 127         bool dhcp_use_ntp;
 128         bool dhcp_use_ntp_set;
 129         bool dhcp_use_sip;
 130         bool dhcp_use_mtu;
 131         bool dhcp_use_routes;
 132         int dhcp_use_gateway;
 133         bool dhcp_use_timezone;
 134         bool dhcp_use_hostname;
 135         bool dhcp_route_table_set;
 136         bool dhcp_send_release;
 137         bool dhcp_send_decline;
 138         DHCPUseDomains dhcp_use_domains;
 139         Set *dhcp_deny_listed_ip;
 140         Set *dhcp_allow_listed_ip;
 141         Set *dhcp_request_options;
 142         OrderedHashmap *dhcp_client_send_options;
 143         OrderedHashmap *dhcp_client_send_vendor_options;
 144
 145         /* DHCPv6 Client support*/
 146         bool dhcp6_use_dns;
 147         bool dhcp6_use_dns_set;
 148         bool dhcp6_use_ntp;
 149         bool dhcp6_use_ntp_set;
 150         bool dhcp6_rapid_commit;
 151         uint8_t dhcp6_pd_length;
 152         uint32_t dhcp6_route_metric;
 153         bool dhcp6_route_metric_set;
 154         char *dhcp6_mudurl;
 155         char **dhcp6_user_class;
 156         char **dhcp6_vendor_class;
 157         struct in6_addr dhcp6_pd_address;
 158         DHCP6ClientStartMode dhcp6_without_ra;
 159         OrderedHashmap *dhcp6_client_send_options;
 160         OrderedHashmap *dhcp6_client_send_vendor_options;
 161         Set *dhcp6_request_options;
 162         /* Start DHCPv6 PD also when 'O' RA flag is set, see RFC 7084, WPD-4 */
 163         bool dhcp6_force_pd_other_information;
 164
 165         /* DHCP Server Support */
 166         bool dhcp_server;
 167         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 168         bool dhcp_server_emit_router;
 169         bool dhcp_server_emit_timezone;
 170         char *dhcp_server_timezone;
 171         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 172         uint32_t dhcp_server_pool_offset;
 173         uint32_t dhcp_server_pool_size;
 174         OrderedHashmap *dhcp_server_send_options;
 175         OrderedHashmap *dhcp_server_send_vendor_options;
 176
 177         /* link local addressing support */
 178         AddressFamily link_local;
 179         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 180         bool ipv4ll_route;
 181
 182         /* IPv6 RA support */
 183         RADVPrefixDelegation router_prefix_delegation;
 184         usec_t router_lifetime_usec;
 185         uint8_t router_preference;
 186         bool router_managed;
 187         bool router_other_information;
 188         bool router_emit_dns;
 189         bool router_emit_domains;
 190         usec_t router_dns_lifetime_usec;
 191         struct in6_addr *router_dns;
 192         unsigned n_router_dns;
 193         OrderedSet *router_search_domains;
 194
 195         /* DHCPv6 Prefix Delegation support */
 196         int dhcp6_pd;
 197         bool dhcp6_pd_announce;
 198         bool dhcp6_pd_assign;
 199         int64_t dhcp6_pd_subnet_id;
 200         union in_addr_union dhcp6_pd_token;
 201
 202         /* Bridge Support */
 203         int use_bpdu;
 204         int hairpin;
 205         int fast_leave;
 206         int allow_port_to_be_root;
 207         int unicast_flood;
 208         int multicast_flood;
 209         int multicast_to_unicast;
 210         int neighbor_suppression;
 211         int learning;
 212         int bridge_proxy_arp;
 213         int bridge_proxy_arp_wifi;
 214         uint32_t cost;
 215         uint16_t priority;
 216         MulticastRouter multicast_router;
 217
 218         /* Bridge VLAN */
 219         bool use_br_vlan;
 220         uint16_t pvid;
 221         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 222         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 223
 224         /* CAN support */
 225         uint32_t can_bitrate;
 226         unsigned can_sample_point;
 227         uint32_t can_data_bitrate;
 228         unsigned can_data_sample_point;
 229         usec_t can_restart_us;
 230         int can_triple_sampling;
 231         int can_termination;
 232         int can_listen_only;
 233         int can_fd_mode;
 234         int can_non_iso;
 235
 236         /* sysctl settings */
 237         AddressFamily ip_forward;
 238         int ipv4_accept_local;
 239         int ipv6_dad_transmits;
 240         int ipv6_hop_limit;
 241         int proxy_arp;
 242         uint32_t ipv6_mtu;
 243         IPv6PrivacyExtensions ipv6_privacy_extensions;
 244         int ipv6_proxy_ndp;
 245         Set *ipv6_proxy_ndp_addresses;
 246
 247         /* IPv6 accept RA */
 248         int ipv6_accept_ra;
 249         bool ipv6_accept_ra_use_dns;
 250         bool ipv6_accept_ra_use_autonomous_prefix;
 251         bool ipv6_accept_ra_use_onlink_prefix;
 252         bool active_slave;
 253         bool primary_slave;
 254         bool ipv6_accept_ra_route_table_set;
 255         DHCPUseDomains ipv6_accept_ra_use_domains;
 256         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 257         uint32_t ipv6_accept_ra_route_table;
 258         Set *ndisc_deny_listed_prefix;
 259         OrderedSet *ipv6_tokens;
 260
 261         /* LLDP support */
 262         LLDPMode lldp_mode; /* LLDP reception */
 263         LLDPEmit lldp_emit; /* LLDP transmission */
 264         char *lldp_mud;    /* LLDP MUD URL */
 265
 266         OrderedHashmap *addresses_by_section;
 267         Hashmap *routes_by_section;
 268         Hashmap *nexthops_by_section;
 269         Hashmap *fdb_entries_by_section;
 270         Hashmap *mdb_entries_by_section;
 271         Hashmap *neighbors_by_section;
 272         Hashmap *address_labels_by_section;
 273         Hashmap *prefixes_by_section;
 274         Hashmap *route_prefixes_by_section;
 275         Hashmap *rules_by_section;
 276         OrderedHashmap *tc_by_section;
 277         OrderedHashmap *sr_iov_by_section;
 278
 279         /* All kinds of DNS configuration */
 280         struct in_addr_full **dns;
 281         unsigned n_dns;
 282         OrderedSet *search_domains, *route_domains;
 283         int dns_default_route;
 284         ResolveSupport llmnr;
 285         ResolveSupport mdns;
 286         DnssecMode dnssec_mode;
 287         DnsOverTlsMode dns_over_tls_mode;
 288         Set *dnssec_negative_trust_anchors;
 289
 290         /* NTP */
 291         char **ntp;
 292 };
 293
 294 Network *network_ref(Network *network);
 295 Network *network_unref(Network *network);
 296 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 297
 298 int network_load(Manager *manager, OrderedHashmap **networks);
 299 int network_reload(Manager *manager);
 300 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 301 int network_verify(Network *network);
 302
 303 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 304 int network_get(Manager *manager, unsigned short iftype, sd_device *device,
 305                 const char *ifname, char * const *alternative_names, const char *driver,
 306                 const struct ether_addr *mac, const struct ether_addr *permanent_mac,
 307                 enum nl80211_iftype wlan_iftype, const char *ssid, const struct ether_addr *bssid,
 308                 Network **ret);
 309 int network_apply(Network *network, Link *link);
 310 void network_apply_anonymize_if_set(Network *network);
 311
 312 bool network_has_static_ipv6_configurations(Network *network);
 313
 314 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 315 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 316 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 317 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 318 CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
 319 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 320 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 321 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 322 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 323 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 324 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_link_local_address_gen_mode);
 325
 326 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 327
 328 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 329 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 330
 331 const char* ipv6_link_local_address_gen_mode_to_string(IPv6LinkLocalAddressGenMode s) _const_;
 332 IPv6LinkLocalAddressGenMode ipv6_link_local_address_gen_mode_from_string(const char *s) _pure_;