src/network/networkd-network.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include "sd-bus.h"
   5 #include "sd-device.h"
   6
   7 #include "condition.h"
   8 #include "conf-parser.h"
   9 #include "hashmap.h"
  10 #include "netdev/bridge.h"
  11 #include "netdev/netdev.h"
  12 #include "networkd-address-label.h"
  13 #include "networkd-address.h"
  14 #include "networkd-brvlan.h"
  15 #include "networkd-dhcp-common.h"
  16 #include "networkd-dhcp4.h"
  17 #include "networkd-fdb.h"
  18 #include "networkd-ipv6-proxy-ndp.h"
  19 #include "networkd-lldp-rx.h"
  20 #include "networkd-lldp-tx.h"
  21 #include "networkd-neighbor.h"
  22 #include "networkd-nexthop.h"
  23 #include "networkd-radv.h"
  24 #include "networkd-route.h"
  25 #include "networkd-routing-policy-rule.h"
  26 #include "networkd-util.h"
  27 #include "ordered-set.h"
  28 #include "resolve-util.h"
  29
  30 typedef enum IPv6PrivacyExtensions {
  31         /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
  32         IPV6_PRIVACY_EXTENSIONS_NO,
  33         IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC,
  34         IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */
  35         _IPV6_PRIVACY_EXTENSIONS_MAX,
  36         _IPV6_PRIVACY_EXTENSIONS_INVALID = -1,
  37 } IPv6PrivacyExtensions;
  38
  39 typedef enum KeepConfiguration {
  40         KEEP_CONFIGURATION_NO            = 0,
  41         KEEP_CONFIGURATION_DHCP_ON_START = 1 << 0,
  42         KEEP_CONFIGURATION_DHCP_ON_STOP  = 1 << 1,
  43         KEEP_CONFIGURATION_DHCP          = KEEP_CONFIGURATION_DHCP_ON_START | KEEP_CONFIGURATION_DHCP_ON_STOP,
  44         KEEP_CONFIGURATION_STATIC        = 1 << 2,
  45         KEEP_CONFIGURATION_YES           = KEEP_CONFIGURATION_DHCP | KEEP_CONFIGURATION_STATIC,
  46         _KEEP_CONFIGURATION_MAX,
  47         _KEEP_CONFIGURATION_INVALID = -1,
  48 } KeepConfiguration;
  49
  50 typedef struct Manager Manager;
  51
  52 struct Network {
  53         Manager *manager;
  54
  55         char *filename;
  56         char *name;
  57
  58         unsigned n_ref;
  59
  60         Set *match_mac;
  61         char **match_path;
  62         char **match_driver;
  63         char **match_type;
  64         char **match_name;
  65         char **match_property;
  66         char **match_ssid;
  67         Set *match_bssid;
  68         LIST_HEAD(Condition, conditions);
  69
  70         char *description;
  71
  72         NetDev *bridge;
  73         NetDev *bond;
  74         NetDev *vrf;
  75         NetDev *xfrm;
  76         Hashmap *stacked_netdevs;
  77         char *bridge_name;
  78         char *bond_name;
  79         char *vrf_name;
  80         Hashmap *stacked_netdev_names;
  81
  82         /* DHCP Client Support */
  83         AddressFamily dhcp;
  84         DHCPClientIdentifier dhcp_client_identifier;
  85         char *dhcp_vendor_class_identifier;
  86         char **dhcp_user_class;
  87         char *dhcp_hostname;
  88         uint64_t dhcp_max_attempts;
  89         unsigned dhcp_route_metric;
  90         uint32_t dhcp_route_table;
  91         uint16_t dhcp_client_port;
  92         int dhcp_critical;
  93         int ip_service_type;
  94         bool dhcp_anonymize;
  95         bool dhcp_send_hostname;
  96         bool dhcp_broadcast;
  97         bool dhcp_use_dns;
  98         bool dhcp_routes_to_dns;
  99         bool dhcp_use_ntp;
 100         bool dhcp_use_sip;
 101         bool dhcp_use_mtu;
 102         bool dhcp_use_routes;
 103         bool dhcp_use_timezone;
 104         bool rapid_commit;
 105         bool dhcp_use_hostname;
 106         bool dhcp_route_table_set;
 107         bool dhcp_send_release;
 108         DHCPUseDomains dhcp_use_domains;
 109         Set *dhcp_black_listed_ip;
 110         Set *dhcp_request_options;
 111         OrderedHashmap *dhcp_send_options;
 112
 113         /* DHCPv6 Client support*/
 114         bool dhcp6_use_dns;
 115         bool dhcp6_use_ntp;
 116         uint8_t dhcp6_pd_length;
 117         struct in6_addr dhcp6_pd_address;
 118
 119         /* DHCP Server Support */
 120         bool dhcp_server;
 121
 122         bool dhcp_server_emit_dns;
 123         struct in_addr *dhcp_server_dns;
 124         unsigned n_dhcp_server_dns;
 125
 126         bool dhcp_server_emit_ntp;
 127         struct in_addr *dhcp_server_ntp;
 128         unsigned n_dhcp_server_ntp;
 129
 130         bool dhcp_server_emit_sip;
 131         struct in_addr *dhcp_server_sip;
 132         unsigned n_dhcp_server_sip;
 133
 134         bool dhcp_server_emit_router;
 135         bool dhcp_server_emit_timezone;
 136         char *dhcp_server_timezone;
 137         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 138         uint32_t dhcp_server_pool_offset;
 139         uint32_t dhcp_server_pool_size;
 140
 141         /* IPV4LL Support */
 142         AddressFamily link_local;
 143         bool ipv4ll_route;
 144
 145         bool default_route_on_device;
 146
 147         /* IPv6 prefix delegation support */
 148         RADVPrefixDelegation router_prefix_delegation;
 149         usec_t router_lifetime_usec;
 150         uint8_t router_preference;
 151         bool router_managed;
 152         bool router_other_information;
 153         bool router_emit_dns;
 154         bool router_emit_domains;
 155         usec_t router_dns_lifetime_usec;
 156         struct in6_addr *router_dns;
 157         unsigned n_router_dns;
 158         OrderedSet *router_search_domains;
 159         bool dhcp6_force_pd_other_information; /* Start DHCPv6 PD also when 'O'
 160                                                   RA flag is set, see RFC 7084,
 161                                                   WPD-4 */
 162
 163         /* Bridge Support */
 164         int use_bpdu;
 165         int hairpin;
 166         int fast_leave;
 167         int allow_port_to_be_root;
 168         int unicast_flood;
 169         int multicast_flood;
 170         int multicast_to_unicast;
 171         int neighbor_suppression;
 172         int learning;
 173         int bridge_proxy_arp;
 174         int bridge_proxy_arp_wifi;
 175         uint32_t cost;
 176         uint16_t priority;
 177         MulticastRouter multicast_router;
 178
 179         bool use_br_vlan;
 180         uint16_t pvid;
 181         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 182         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 183
 184         /* CAN support */
 185         size_t can_bitrate;
 186         unsigned can_sample_point;
 187         usec_t can_restart_us;
 188         int can_triple_sampling;
 189
 190         AddressFamily ip_forward;
 191         bool ip_masquerade;
 192
 193         int ipv6_accept_ra;
 194         int ipv6_dad_transmits;
 195         int ipv6_hop_limit;
 196         int ipv6_proxy_ndp;
 197         int proxy_arp;
 198         uint32_t ipv6_mtu;
 199
 200         bool ipv6_accept_ra_use_dns;
 201         bool ipv6_accept_ra_use_autonomous_prefix;
 202         bool ipv6_accept_ra_use_onlink_prefix;
 203         bool active_slave;
 204         bool primary_slave;
 205         DHCPUseDomains ipv6_accept_ra_use_domains;
 206         uint32_t ipv6_accept_ra_route_table;
 207         bool ipv6_accept_ra_route_table_set;
 208         Set *ndisc_black_listed_prefix;
 209
 210         union in_addr_union ipv6_token;
 211         IPv6PrivacyExtensions ipv6_privacy_extensions;
 212
 213         struct ether_addr *mac;
 214         uint32_t mtu;
 215         int arp;
 216         int multicast;
 217         int allmulticast;
 218         bool unmanaged;
 219         bool configure_without_carrier;
 220         bool ignore_carrier_loss;
 221         KeepConfiguration keep_configuration;
 222         uint32_t iaid;
 223         DUID duid;
 224
 225         bool iaid_set;
 226
 227         bool required_for_online; /* Is this network required to be considered online? */
 228         LinkOperationalState required_operstate_for_online;
 229
 230         LLDPMode lldp_mode; /* LLDP reception */
 231         LLDPEmit lldp_emit; /* LLDP transmission */
 232
 233         LIST_HEAD(Address, static_addresses);
 234         LIST_HEAD(Route, static_routes);
 235         LIST_HEAD(NextHop, static_nexthops);
 236         LIST_HEAD(FdbEntry, static_fdb_entries);
 237         LIST_HEAD(IPv6ProxyNDPAddress, ipv6_proxy_ndp_addresses);
 238         LIST_HEAD(Neighbor, neighbors);
 239         LIST_HEAD(AddressLabel, address_labels);
 240         LIST_HEAD(Prefix, static_prefixes);
 241         LIST_HEAD(Prefix, static_route_prefixes);
 242         LIST_HEAD(RoutingPolicyRule, rules);
 243
 244         unsigned n_static_addresses;
 245         unsigned n_static_routes;
 246         unsigned n_static_nexthops;
 247         unsigned n_static_fdb_entries;
 248         unsigned n_ipv6_proxy_ndp_addresses;
 249         unsigned n_neighbors;
 250         unsigned n_address_labels;
 251         unsigned n_static_prefixes;
 252         unsigned n_static_route_prefixes;
 253         unsigned n_rules;
 254
 255         Hashmap *addresses_by_section;
 256         Hashmap *routes_by_section;
 257         Hashmap *nexthops_by_section;
 258         Hashmap *fdb_entries_by_section;
 259         Hashmap *neighbors_by_section;
 260         Hashmap *address_labels_by_section;
 261         Hashmap *prefixes_by_section;
 262         Hashmap *route_prefixes_by_section;
 263         Hashmap *rules_by_section;
 264
 265         /* All kinds of DNS configuration */
 266         struct in_addr_data *dns;
 267         unsigned n_dns;
 268         OrderedSet *search_domains, *route_domains;
 269
 270         int dns_default_route;
 271         ResolveSupport llmnr;
 272         ResolveSupport mdns;
 273         DnssecMode dnssec_mode;
 274         DnsOverTlsMode dns_over_tls_mode;
 275         Set *dnssec_negative_trust_anchors;
 276
 277         char **ntp;
 278         char **sip;
 279         char **bind_carrier;
 280 };
 281
 282 Network *network_ref(Network *network);
 283 Network *network_unref(Network *network);
 284 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 285
 286 int network_load(Manager *manager);
 287 int network_load_one(Manager *manager, const char *filename);
 288 int network_verify(Network *network);
 289
 290 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 291 int network_get(Manager *manager, sd_device *device, const char *ifname, const struct ether_addr *mac,
 292                 const char *ssid, const struct ether_addr *bssid, Network **ret);
 293 int network_apply(Network *network, Link *link);
 294 void network_apply_anonymize_if_set(Network *network);
 295
 296 bool network_has_static_ipv6_configurations(Network *network);
 297
 298 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 299 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 300 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token);
 301 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions);
 302 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 303 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 304 CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
 305 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 306 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 307 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 308 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 309 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 310
 311 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 312
 313 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 314 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 315
 316 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 317 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;