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-neighbor.h"
  26 #include "networkd-nexthop.h"
  27 #include "networkd-radv.h"
  28 #include "networkd-route.h"
  29 #include "networkd-routing-policy-rule.h"
  30 #include "networkd-util.h"
  31 #include "ordered-set.h"
  32 #include "qdisc.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         char **match_path;
  68         char **match_driver;
  69         char **match_type;
  70         char **match_name;
  71         char **match_property;
  72         char **match_wlan_iftype;
  73         char **match_ssid;
  74         Set *match_bssid;
  75         LIST_HEAD(Condition, conditions);
  76
  77         char *description;
  78
  79         NetDev *bridge;
  80         NetDev *bond;
  81         NetDev *vrf;
  82         NetDev *xfrm;
  83         Hashmap *stacked_netdevs;
  84         char *bridge_name;
  85         char *bond_name;
  86         char *vrf_name;
  87         Hashmap *stacked_netdev_names;
  88
  89         /* DHCP Client Support */
  90         AddressFamily dhcp;
  91         DHCPClientIdentifier dhcp_client_identifier;
  92         char *dhcp_vendor_class_identifier;
  93         char **dhcp_user_class;
  94         char *dhcp_hostname;
  95         uint64_t dhcp_max_attempts;
  96         unsigned dhcp_route_metric;
  97         uint32_t dhcp_route_table;
  98         uint32_t dhcp_route_mtu;
  99         uint16_t dhcp_client_port;
 100         int dhcp_critical;
 101         int ip_service_type;
 102         bool dhcp_anonymize;
 103         bool dhcp_send_hostname;
 104         bool dhcp_broadcast;
 105         bool dhcp_use_dns;
 106         bool dhcp_routes_to_dns;
 107         bool dhcp_use_ntp;
 108         bool dhcp_use_sip;
 109         bool dhcp_use_mtu;
 110         bool dhcp_use_routes;
 111         bool dhcp_use_timezone;
 112         bool rapid_commit;
 113         bool dhcp_use_hostname;
 114         bool dhcp_route_table_set;
 115         bool dhcp_send_release;
 116         bool dhcp_send_decline;
 117         DHCPUseDomains dhcp_use_domains;
 118         sd_ipv4acd *dhcp_acd;
 119         Set *dhcp_black_listed_ip;
 120         Set *dhcp_request_options;
 121         OrderedHashmap *dhcp_client_send_options;
 122         OrderedHashmap *dhcp_server_send_options;
 123
 124         /* DHCPv6 Client support*/
 125         bool dhcp6_use_dns;
 126         bool dhcp6_use_ntp;
 127         uint8_t dhcp6_pd_length;
 128         struct in6_addr dhcp6_pd_address;
 129
 130         /* DHCP Server Support */
 131         bool dhcp_server;
 132
 133         bool dhcp_server_emit_dns;
 134         struct in_addr *dhcp_server_dns;
 135         unsigned n_dhcp_server_dns;
 136
 137         bool dhcp_server_emit_ntp;
 138         struct in_addr *dhcp_server_ntp;
 139         unsigned n_dhcp_server_ntp;
 140
 141         bool dhcp_server_emit_sip;
 142         struct in_addr *dhcp_server_sip;
 143         unsigned n_dhcp_server_sip;
 144
 145         bool dhcp_server_emit_router;
 146         bool dhcp_server_emit_timezone;
 147         char *dhcp_server_timezone;
 148         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 149         uint32_t dhcp_server_pool_offset;
 150         uint32_t dhcp_server_pool_size;
 151
 152         /* IPV4LL Support */
 153         AddressFamily link_local;
 154         bool ipv4ll_route;
 155
 156         bool default_route_on_device;
 157
 158         /* IPv6 prefix delegation support */
 159         RADVPrefixDelegation router_prefix_delegation;
 160         usec_t router_lifetime_usec;
 161         uint8_t router_preference;
 162         bool router_managed;
 163         bool router_other_information;
 164         bool router_emit_dns;
 165         bool router_emit_domains;
 166         usec_t router_dns_lifetime_usec;
 167         struct in6_addr *router_dns;
 168         unsigned n_router_dns;
 169         OrderedSet *router_search_domains;
 170         bool dhcp6_force_pd_other_information; /* Start DHCPv6 PD also when 'O'
 171                                                   RA flag is set, see RFC 7084,
 172                                                   WPD-4 */
 173
 174         /* Bridge Support */
 175         int use_bpdu;
 176         int hairpin;
 177         int fast_leave;
 178         int allow_port_to_be_root;
 179         int unicast_flood;
 180         int multicast_flood;
 181         int multicast_to_unicast;
 182         int neighbor_suppression;
 183         int learning;
 184         int bridge_proxy_arp;
 185         int bridge_proxy_arp_wifi;
 186         uint32_t cost;
 187         uint16_t priority;
 188         MulticastRouter multicast_router;
 189
 190         bool use_br_vlan;
 191         uint16_t pvid;
 192         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 193         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 194
 195         /* CAN support */
 196         size_t can_bitrate;
 197         unsigned can_sample_point;
 198         usec_t can_restart_us;
 199         int can_triple_sampling;
 200
 201         AddressFamily ip_forward;
 202         bool ip_masquerade;
 203
 204         int ipv6_accept_ra;
 205         int ipv6_dad_transmits;
 206         int ipv6_hop_limit;
 207         int ipv6_proxy_ndp;
 208         int proxy_arp;
 209         uint32_t ipv6_mtu;
 210
 211         bool ipv6_accept_ra_use_dns;
 212         bool ipv6_accept_ra_use_autonomous_prefix;
 213         bool ipv6_accept_ra_use_onlink_prefix;
 214         bool active_slave;
 215         bool primary_slave;
 216         DHCPUseDomains ipv6_accept_ra_use_domains;
 217         uint32_t ipv6_accept_ra_route_table;
 218         bool ipv6_accept_ra_route_table_set;
 219         Set *ndisc_black_listed_prefix;
 220
 221         union in_addr_union ipv6_token;
 222         IPv6PrivacyExtensions ipv6_privacy_extensions;
 223
 224         struct ether_addr *mac;
 225         uint32_t mtu;
 226         int arp;
 227         int multicast;
 228         int allmulticast;
 229         bool unmanaged;
 230         bool configure_without_carrier;
 231         bool ignore_carrier_loss;
 232         KeepConfiguration keep_configuration;
 233         uint32_t iaid;
 234         DUID duid;
 235
 236         bool iaid_set;
 237
 238         bool required_for_online; /* Is this network required to be considered online? */
 239         LinkOperationalState required_operstate_for_online;
 240
 241         LLDPMode lldp_mode; /* LLDP reception */
 242         LLDPEmit lldp_emit; /* LLDP transmission */
 243
 244         LIST_HEAD(Address, static_addresses);
 245         LIST_HEAD(Route, static_routes);
 246         LIST_HEAD(NextHop, static_nexthops);
 247         LIST_HEAD(FdbEntry, static_fdb_entries);
 248         LIST_HEAD(IPv6ProxyNDPAddress, ipv6_proxy_ndp_addresses);
 249         LIST_HEAD(Neighbor, neighbors);
 250         LIST_HEAD(AddressLabel, address_labels);
 251         LIST_HEAD(Prefix, static_prefixes);
 252         LIST_HEAD(RoutePrefix, static_route_prefixes);
 253         LIST_HEAD(RoutingPolicyRule, rules);
 254
 255         unsigned n_static_addresses;
 256         unsigned n_static_routes;
 257         unsigned n_static_nexthops;
 258         unsigned n_static_fdb_entries;
 259         unsigned n_ipv6_proxy_ndp_addresses;
 260         unsigned n_neighbors;
 261         unsigned n_address_labels;
 262         unsigned n_static_prefixes;
 263         unsigned n_static_route_prefixes;
 264         unsigned n_rules;
 265
 266         Hashmap *addresses_by_section;
 267         Hashmap *routes_by_section;
 268         Hashmap *nexthops_by_section;
 269         Hashmap *fdb_entries_by_section;
 270         Hashmap *neighbors_by_section;
 271         Hashmap *address_labels_by_section;
 272         Hashmap *prefixes_by_section;
 273         Hashmap *route_prefixes_by_section;
 274         Hashmap *rules_by_section;
 275         OrderedHashmap *qdiscs_by_section;
 276
 277         /* All kinds of DNS configuration */
 278         struct in_addr_data *dns;
 279         unsigned n_dns;
 280         OrderedSet *search_domains, *route_domains;
 281
 282         int dns_default_route;
 283         ResolveSupport llmnr;
 284         ResolveSupport mdns;
 285         DnssecMode dnssec_mode;
 286         DnsOverTlsMode dns_over_tls_mode;
 287         Set *dnssec_negative_trust_anchors;
 288
 289         char **ntp;
 290         char **sip;
 291         char **bind_carrier;
 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, sd_device *device, const char *ifname, char * const *alternative_names,
 305                 const struct ether_addr *mac, enum nl80211_iftype wlan_iftype, const char *ssid,
 306                 const struct ether_addr *bssid, Network **ret);
 307 int network_apply(Network *network, Link *link);
 308 void network_apply_anonymize_if_set(Network *network);
 309
 310 bool network_has_static_ipv6_configurations(Network *network);
 311
 312 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 313 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 314 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token);
 315 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions);
 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
 325 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 326
 327 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 328 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 329
 330 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 331 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;