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 struct Network {
  58         Manager *manager;
  59
  60         char *filename;
  61         char *name;
  62         usec_t timestamp;
  63
  64         unsigned n_ref;
  65
  66         Set *match_mac;
  67         Set *match_permanent_mac;
  68         char **match_path;
  69         char **match_driver;
  70         char **match_type;
  71         char **match_name;
  72         char **match_property;
  73         char **match_wlan_iftype;
  74         char **match_ssid;
  75         Set *match_bssid;
  76         LIST_HEAD(Condition, conditions);
  77
  78         char *description;
  79
  80         NetDev *bridge;
  81         NetDev *bond;
  82         NetDev *vrf;
  83         NetDev *xfrm;
  84         Hashmap *stacked_netdevs;
  85         char *bridge_name;
  86         char *bond_name;
  87         char *vrf_name;
  88         Hashmap *stacked_netdev_names;
  89
  90         /* DHCP Client Support */
  91         AddressFamily dhcp;
  92         DHCPClientIdentifier dhcp_client_identifier;
  93         char *dhcp_vendor_class_identifier;
  94         char **dhcp_user_class;
  95         char *dhcp_hostname;
  96         uint64_t dhcp_max_attempts;
  97         unsigned dhcp_route_metric;
  98         uint32_t dhcp_route_table;
  99         uint32_t dhcp_route_mtu;
 100         uint16_t dhcp_client_port;
 101         int dhcp_critical;
 102         int ip_service_type;
 103         bool dhcp_anonymize;
 104         bool dhcp_send_hostname;
 105         bool dhcp_broadcast;
 106         bool dhcp_use_dns;
 107         bool dhcp_routes_to_dns;
 108         bool dhcp_use_ntp;
 109         bool dhcp_use_sip;
 110         bool dhcp_use_mtu;
 111         bool dhcp_use_routes;
 112         bool dhcp_use_timezone;
 113         bool rapid_commit;
 114         bool dhcp_use_hostname;
 115         bool dhcp_route_table_set;
 116         bool dhcp_send_release;
 117         bool dhcp_send_decline;
 118         DHCPUseDomains dhcp_use_domains;
 119         sd_ipv4acd *dhcp_acd;
 120         Set *dhcp_black_listed_ip;
 121         Set *dhcp_request_options;
 122         OrderedHashmap *dhcp_client_send_options;
 123         OrderedHashmap *dhcp_server_send_options;
 124
 125         /* DHCPv6 Client support*/
 126         bool dhcp6_use_dns;
 127         bool dhcp6_use_ntp;
 128         bool dhcp6_without_ra;
 129         uint8_t dhcp6_pd_length;
 130         struct in6_addr dhcp6_pd_address;
 131
 132         /* DHCP Server Support */
 133         bool dhcp_server;
 134
 135         bool dhcp_server_emit_dns;
 136         struct in_addr *dhcp_server_dns;
 137         unsigned n_dhcp_server_dns;
 138
 139         bool dhcp_server_emit_ntp;
 140         struct in_addr *dhcp_server_ntp;
 141         unsigned n_dhcp_server_ntp;
 142
 143         bool dhcp_server_emit_sip;
 144         struct in_addr *dhcp_server_sip;
 145         unsigned n_dhcp_server_sip;
 146
 147         bool dhcp_server_emit_router;
 148         bool dhcp_server_emit_timezone;
 149         char *dhcp_server_timezone;
 150         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 151         uint32_t dhcp_server_pool_offset;
 152         uint32_t dhcp_server_pool_size;
 153
 154         /* IPV4LL Support */
 155         AddressFamily link_local;
 156         bool ipv4ll_route;
 157
 158         bool default_route_on_device;
 159
 160         /* IPv6 prefix delegation support */
 161         RADVPrefixDelegation router_prefix_delegation;
 162         usec_t router_lifetime_usec;
 163         uint8_t router_preference;
 164         bool router_managed;
 165         bool router_other_information;
 166         bool router_emit_dns;
 167         bool router_emit_domains;
 168         usec_t router_dns_lifetime_usec;
 169         struct in6_addr *router_dns;
 170         unsigned n_router_dns;
 171         OrderedSet *router_search_domains;
 172         bool dhcp6_force_pd_other_information; /* Start DHCPv6 PD also when 'O'
 173                                                   RA flag is set, see RFC 7084,
 174                                                   WPD-4 */
 175
 176         /* Bridge Support */
 177         int use_bpdu;
 178         int hairpin;
 179         int fast_leave;
 180         int allow_port_to_be_root;
 181         int unicast_flood;
 182         int multicast_flood;
 183         int multicast_to_unicast;
 184         int neighbor_suppression;
 185         int learning;
 186         int bridge_proxy_arp;
 187         int bridge_proxy_arp_wifi;
 188         uint32_t cost;
 189         uint16_t priority;
 190         MulticastRouter multicast_router;
 191
 192         bool use_br_vlan;
 193         uint16_t pvid;
 194         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 195         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 196
 197         /* CAN support */
 198         uint64_t can_bitrate;
 199         unsigned can_sample_point;
 200         usec_t can_restart_us;
 201         int can_triple_sampling;
 202         int can_termination;
 203
 204         AddressFamily ip_forward;
 205         bool ip_masquerade;
 206
 207         int ipv6_accept_ra;
 208         int ipv6_dad_transmits;
 209         int ipv6_hop_limit;
 210         int ipv6_proxy_ndp;
 211         int proxy_arp;
 212         uint32_t ipv6_mtu;
 213
 214         bool ipv6_accept_ra_use_dns;
 215         bool ipv6_accept_ra_use_autonomous_prefix;
 216         bool ipv6_accept_ra_use_onlink_prefix;
 217         bool ipv6_accept_ra_start_dhcp6_client;
 218         bool active_slave;
 219         bool primary_slave;
 220         DHCPUseDomains ipv6_accept_ra_use_domains;
 221         uint32_t ipv6_accept_ra_route_table;
 222         bool ipv6_accept_ra_route_table_set;
 223         Set *ndisc_black_listed_prefix;
 224         OrderedHashmap *ipv6_tokens;
 225
 226         IPv6PrivacyExtensions ipv6_privacy_extensions;
 227
 228         struct ether_addr *mac;
 229         uint32_t mtu;
 230         int arp;
 231         int multicast;
 232         int allmulticast;
 233         bool unmanaged;
 234         bool configure_without_carrier;
 235         bool ignore_carrier_loss;
 236         KeepConfiguration keep_configuration;
 237         uint32_t iaid;
 238         DUID duid;
 239
 240         bool iaid_set;
 241
 242         bool required_for_online; /* Is this network required to be considered online? */
 243         LinkOperationalStateRange required_operstate_for_online;
 244
 245         LLDPMode lldp_mode; /* LLDP reception */
 246         LLDPEmit lldp_emit; /* LLDP transmission */
 247
 248         LIST_HEAD(Address, static_addresses);
 249         LIST_HEAD(Route, static_routes);
 250         LIST_HEAD(NextHop, static_nexthops);
 251         LIST_HEAD(FdbEntry, static_fdb_entries);
 252         LIST_HEAD(IPv6ProxyNDPAddress, ipv6_proxy_ndp_addresses);
 253         LIST_HEAD(Neighbor, neighbors);
 254         LIST_HEAD(AddressLabel, address_labels);
 255         LIST_HEAD(Prefix, static_prefixes);
 256         LIST_HEAD(RoutePrefix, static_route_prefixes);
 257         LIST_HEAD(RoutingPolicyRule, rules);
 258
 259         unsigned n_static_addresses;
 260         unsigned n_static_routes;
 261         unsigned n_static_nexthops;
 262         unsigned n_static_fdb_entries;
 263         unsigned n_ipv6_proxy_ndp_addresses;
 264         unsigned n_neighbors;
 265         unsigned n_address_labels;
 266         unsigned n_static_prefixes;
 267         unsigned n_static_route_prefixes;
 268         unsigned n_rules;
 269
 270         Hashmap *addresses_by_section;
 271         Hashmap *routes_by_section;
 272         Hashmap *nexthops_by_section;
 273         Hashmap *fdb_entries_by_section;
 274         Hashmap *neighbors_by_section;
 275         Hashmap *address_labels_by_section;
 276         Hashmap *prefixes_by_section;
 277         Hashmap *route_prefixes_by_section;
 278         Hashmap *rules_by_section;
 279         OrderedHashmap *tc_by_section;
 280
 281         /* All kinds of DNS configuration */
 282         struct in_addr_data *dns;
 283         unsigned n_dns;
 284         OrderedSet *search_domains, *route_domains;
 285
 286         int dns_default_route;
 287         ResolveSupport llmnr;
 288         ResolveSupport mdns;
 289         DnssecMode dnssec_mode;
 290         DnsOverTlsMode dns_over_tls_mode;
 291         Set *dnssec_negative_trust_anchors;
 292
 293         char **ntp;
 294         char **sip;
 295         char **bind_carrier;
 296 };
 297
 298 Network *network_ref(Network *network);
 299 Network *network_unref(Network *network);
 300 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 301
 302 int network_load(Manager *manager, OrderedHashmap **networks);
 303 int network_reload(Manager *manager);
 304 int network_load_one(Manager *manager, OrderedHashmap **networks, const char *filename);
 305 int network_verify(Network *network);
 306
 307 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 308 int network_get(Manager *manager, unsigned short iftype, sd_device *device, const char *ifname, char * const *alternative_names,
 309                 const struct ether_addr *mac, const struct ether_addr *permanent_mac,
 310                 enum nl80211_iftype wlan_iftype, const char *ssid,
 311                 const struct ether_addr *bssid, Network **ret);
 312 int network_apply(Network *network, Link *link);
 313 void network_apply_anonymize_if_set(Network *network);
 314
 315 bool network_has_static_ipv6_configurations(Network *network);
 316
 317 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 318 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 319 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token);
 320 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions);
 321 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 322 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 323 CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
 324 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 325 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 326 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 327 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 328 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 329
 330 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 331
 332 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 333 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 334
 335 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 336 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;