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
   9 #include "bridge.h"
  10 #include "condition.h"
  11 #include "conf-parser.h"
  12 #include "hashmap.h"
  13 #include "netdev.h"
  14 #include "networkd-brvlan.h"
  15 #include "networkd-dhcp-common.h"
  16 #include "networkd-dhcp4.h"
  17 #include "networkd-dhcp6.h"
  18 #include "networkd-dhcp-server.h"
  19 #include "networkd-lldp-rx.h"
  20 #include "networkd-lldp-tx.h"
  21 #include "networkd-ndisc.h"
  22 #include "networkd-radv.h"
  23 #include "networkd-sysctl.h"
  24 #include "networkd-util.h"
  25 #include "ordered-set.h"
  26 #include "resolve-util.h"
  27 #include "socket-netlink.h"
  28
  29 typedef enum KeepConfiguration {
  30         KEEP_CONFIGURATION_NO            = 0,
  31         KEEP_CONFIGURATION_DHCP_ON_START = 1 << 0,
  32         KEEP_CONFIGURATION_DHCP_ON_STOP  = 1 << 1,
  33         KEEP_CONFIGURATION_DHCP          = KEEP_CONFIGURATION_DHCP_ON_START | KEEP_CONFIGURATION_DHCP_ON_STOP,
  34         KEEP_CONFIGURATION_STATIC        = 1 << 2,
  35         KEEP_CONFIGURATION_YES           = KEEP_CONFIGURATION_DHCP | KEEP_CONFIGURATION_STATIC,
  36         _KEEP_CONFIGURATION_MAX,
  37         _KEEP_CONFIGURATION_INVALID = -1,
  38 } KeepConfiguration;
  39
  40 typedef enum IPv6LinkLocalAddressGenMode {
  41        IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_EUI64          = IN6_ADDR_GEN_MODE_EUI64,
  42        IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_NONE           = IN6_ADDR_GEN_MODE_NONE,
  43        IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_STABLE_PRIVACY = IN6_ADDR_GEN_MODE_STABLE_PRIVACY,
  44        IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_RANDOM         = IN6_ADDR_GEN_MODE_RANDOM,
  45        _IPV6_LINK_LOCAL_ADDRESS_GEN_MODE_MAX,
  46        _IPV6_LINK_LOCAL_ADDRESS_GEN_MODE_INVALID        = -1
  47 } IPv6LinkLocalAddressGenMode;
  48
  49 typedef struct Manager Manager;
  50
  51 typedef struct NetworkDHCPServerEmitAddress {
  52         bool emit;
  53         struct in_addr *addresses;
  54         size_t n_addresses;
  55 } NetworkDHCPServerEmitAddress;
  56
  57 struct Network {
  58         Manager *manager;
  59
  60         unsigned n_ref;
  61
  62         char *name;
  63         char *filename;
  64         usec_t timestamp;
  65         char *description;
  66
  67         /* [Match] section */
  68         Set *match_mac;
  69         Set *match_permanent_mac;
  70         char **match_path;
  71         char **match_driver;
  72         char **match_type;
  73         char **match_name;
  74         char **match_property;
  75         char **match_wlan_iftype;
  76         char **match_ssid;
  77         Set *match_bssid;
  78         LIST_HEAD(Condition, conditions);
  79
  80         /* Master or stacked netdevs */
  81         NetDev *bridge;
  82         NetDev *bond;
  83         NetDev *vrf;
  84         NetDev *xfrm;
  85         Hashmap *stacked_netdevs;
  86         char *bridge_name;
  87         char *bond_name;
  88         char *vrf_name;
  89         Hashmap *stacked_netdev_names;
  90
  91         /* [Link] section */
  92         struct ether_addr *mac;
  93         uint32_t mtu;
  94         uint32_t group;
  95         int arp;
  96         int multicast;
  97         int allmulticast;
  98         bool unmanaged;
  99         bool required_for_online; /* Is this network required to be considered online? */
 100         LinkOperationalStateRange required_operstate_for_online;
 101
 102         /* misc settings */
 103         bool configure_without_carrier;
 104         int ignore_carrier_loss;
 105         KeepConfiguration keep_configuration;
 106         char **bind_carrier;
 107         bool default_route_on_device;
 108         bool ip_masquerade;
 109
 110         /* DHCP Client Support */
 111         AddressFamily dhcp;
 112         DHCPClientIdentifier dhcp_client_identifier;
 113         DUID duid;
 114         uint32_t iaid;
 115         bool iaid_set;
 116         char *dhcp_vendor_class_identifier;
 117         char *dhcp_mudurl;
 118         char **dhcp_user_class;
 119         char *dhcp_hostname;
 120         uint64_t dhcp_max_attempts;
 121         uint32_t dhcp_route_metric;
 122         bool dhcp_route_metric_set;
 123         uint32_t dhcp_route_table;
 124         uint32_t dhcp_fallback_lease_lifetime;
 125         uint32_t dhcp_route_mtu;
 126         uint16_t dhcp_client_port;
 127         int dhcp_critical;
 128         int dhcp_ip_service_type;
 129         bool dhcp_anonymize;
 130         bool dhcp_send_hostname;
 131         bool dhcp_broadcast;
 132         bool dhcp_use_dns;
 133         bool dhcp_use_dns_set;
 134         bool dhcp_routes_to_dns;
 135         bool dhcp_use_ntp;
 136         bool dhcp_use_ntp_set;
 137         bool dhcp_use_sip;
 138         bool dhcp_use_mtu;
 139         bool dhcp_use_routes;
 140         int dhcp_use_gateway;
 141         bool dhcp_use_timezone;
 142         bool dhcp_use_hostname;
 143         bool dhcp_route_table_set;
 144         bool dhcp_send_release;
 145         bool dhcp_send_decline;
 146         DHCPUseDomains dhcp_use_domains;
 147         Set *dhcp_deny_listed_ip;
 148         Set *dhcp_allow_listed_ip;
 149         Set *dhcp_request_options;
 150         OrderedHashmap *dhcp_client_send_options;
 151         OrderedHashmap *dhcp_client_send_vendor_options;
 152
 153         /* DHCPv6 Client support*/
 154         bool dhcp6_use_dns;
 155         bool dhcp6_use_dns_set;
 156         bool dhcp6_use_ntp;
 157         bool dhcp6_use_ntp_set;
 158         bool dhcp6_rapid_commit;
 159         uint8_t dhcp6_pd_length;
 160         uint32_t dhcp6_route_metric;
 161         bool dhcp6_route_metric_set;
 162         char *dhcp6_mudurl;
 163         char **dhcp6_user_class;
 164         char **dhcp6_vendor_class;
 165         struct in6_addr dhcp6_pd_address;
 166         DHCP6ClientStartMode dhcp6_without_ra;
 167         OrderedHashmap *dhcp6_client_send_options;
 168         OrderedHashmap *dhcp6_client_send_vendor_options;
 169         Set *dhcp6_request_options;
 170         /* Start DHCPv6 PD also when 'O' RA flag is set, see RFC 7084, WPD-4 */
 171         bool dhcp6_force_pd_other_information;
 172
 173         /* DHCP Server Support */
 174         bool dhcp_server;
 175         NetworkDHCPServerEmitAddress dhcp_server_emit[_SD_DHCP_LEASE_SERVER_TYPE_MAX];
 176         bool dhcp_server_emit_router;
 177         bool dhcp_server_emit_timezone;
 178         char *dhcp_server_timezone;
 179         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 180         uint32_t dhcp_server_pool_offset;
 181         uint32_t dhcp_server_pool_size;
 182         OrderedHashmap *dhcp_server_send_options;
 183         OrderedHashmap *dhcp_server_send_vendor_options;
 184
 185         /* link local addressing support */
 186         AddressFamily link_local;
 187         IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode;
 188         bool ipv4ll_route;
 189
 190         /* IPv6 prefix delegation support */
 191         RADVPrefixDelegation router_prefix_delegation;
 192         usec_t router_lifetime_usec;
 193         uint8_t router_preference;
 194         bool router_managed;
 195         bool router_other_information;
 196         bool router_emit_dns;
 197         bool router_emit_domains;
 198         usec_t router_dns_lifetime_usec;
 199         struct in6_addr *router_dns;
 200         unsigned n_router_dns;
 201         OrderedSet *router_search_domains;
 202
 203         /* DHCPv6 Prefix Delegation support */
 204         int dhcp6_pd;
 205         bool dhcp6_pd_assign;
 206         int64_t dhcp6_pd_subnet_id;
 207         union in_addr_union dhcp6_pd_token;
 208
 209         /* Bridge Support */
 210         int use_bpdu;
 211         int hairpin;
 212         int fast_leave;
 213         int allow_port_to_be_root;
 214         int unicast_flood;
 215         int multicast_flood;
 216         int multicast_to_unicast;
 217         int neighbor_suppression;
 218         int learning;
 219         int bridge_proxy_arp;
 220         int bridge_proxy_arp_wifi;
 221         uint32_t cost;
 222         uint16_t priority;
 223         MulticastRouter multicast_router;
 224
 225         /* Bridge VLAN */
 226         bool use_br_vlan;
 227         uint16_t pvid;
 228         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 229         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 230
 231         /* CAN support */
 232         uint32_t can_bitrate;
 233         unsigned can_sample_point;
 234         uint32_t can_data_bitrate;
 235         unsigned can_data_sample_point;
 236         usec_t can_restart_us;
 237         int can_triple_sampling;
 238         int can_termination;
 239         int can_listen_only;
 240         int can_fd_mode;
 241         int can_non_iso;
 242
 243         /* sysctl settings */
 244         AddressFamily ip_forward;
 245         int ipv4_accept_local;
 246         int ipv6_dad_transmits;
 247         int ipv6_hop_limit;
 248         int proxy_arp;
 249         uint32_t ipv6_mtu;
 250         IPv6PrivacyExtensions ipv6_privacy_extensions;
 251         int ipv6_proxy_ndp;
 252         Set *ipv6_proxy_ndp_addresses;
 253
 254         /* IPv6 accept RA */
 255         int ipv6_accept_ra;
 256         bool ipv6_accept_ra_use_dns;
 257         bool ipv6_accept_ra_use_autonomous_prefix;
 258         bool ipv6_accept_ra_use_onlink_prefix;
 259         bool active_slave;
 260         bool primary_slave;
 261         bool ipv6_accept_ra_route_table_set;
 262         DHCPUseDomains ipv6_accept_ra_use_domains;
 263         IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client;
 264         uint32_t ipv6_accept_ra_route_table;
 265         Set *ndisc_deny_listed_prefix;
 266         OrderedSet *ipv6_tokens;
 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         OrderedHashmap *addresses_by_section;
 274         Hashmap *routes_by_section;
 275         Hashmap *nexthops_by_section;
 276         Hashmap *fdb_entries_by_section;
 277         Hashmap *mdb_entries_by_section;
 278         Hashmap *neighbors_by_section;
 279         Hashmap *address_labels_by_section;
 280         Hashmap *prefixes_by_section;
 281         Hashmap *route_prefixes_by_section;
 282         Hashmap *rules_by_section;
 283         OrderedHashmap *tc_by_section;
 284         OrderedHashmap *sr_iov_by_section;
 285
 286         /* All kinds of DNS configuration */
 287         struct in_addr_full **dns;
 288         unsigned n_dns;
 289         OrderedSet *search_domains, *route_domains;
 290         int dns_default_route;
 291         ResolveSupport llmnr;
 292         ResolveSupport mdns;
 293         DnssecMode dnssec_mode;
 294         DnsOverTlsMode dns_over_tls_mode;
 295         Set *dnssec_negative_trust_anchors;
 296
 297         /* NTP */
 298         char **ntp;
 299 };
 300
 301 Network *network_ref(Network *network);
 302 Network *network_unref(Network *network);
 303 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 304
 305 int network_load(Manager *manager, OrderedHashmap **networks);
 306 int network_reload(Manager *manager);
 307 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 308 int network_verify(Network *network);
 309
 310 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 311 int network_get(Manager *manager, unsigned short iftype, sd_device *device,
 312                 const char *ifname, char * const *alternative_names, const char *driver,
 313                 const struct ether_addr *mac, const struct ether_addr *permanent_mac,
 314                 enum nl80211_iftype wlan_iftype, const char *ssid, const struct ether_addr *bssid,
 315                 Network **ret);
 316 int network_apply(Network *network, Link *link);
 317 void network_apply_anonymize_if_set(Network *network);
 318
 319 bool network_has_static_ipv6_configurations(Network *network);
 320
 321 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 322 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 323 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 324 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 325 CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
 326 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 327 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 328 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 329 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 330 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 331 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_link_local_address_gen_mode);
 332
 333 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 334
 335 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 336 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;
 337
 338 const char* ipv6_link_local_address_gen_mode_to_string(IPv6LinkLocalAddressGenMode s) _const_;
 339 IPv6LinkLocalAddressGenMode ipv6_link_local_address_gen_mode_from_string(const char *s) _pure_;