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-radv.h"
  23 #include "networkd-route.h"
  24 #include "networkd-routing-policy-rule.h"
  25 #include "networkd-util.h"
  26 #include "ordered-set.h"
  27 #include "resolve-util.h"
  28
  29 typedef enum IPv6PrivacyExtensions {
  30         /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
  31         IPV6_PRIVACY_EXTENSIONS_NO,
  32         IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC,
  33         IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */
  34         _IPV6_PRIVACY_EXTENSIONS_MAX,
  35         _IPV6_PRIVACY_EXTENSIONS_INVALID = -1,
  36 } IPv6PrivacyExtensions;
  37
  38 typedef enum KeepConfiguration {
  39         KEEP_CONFIGURATION_NO            = 0,
  40         KEEP_CONFIGURATION_DHCP_ON_START = 1 << 0,
  41         KEEP_CONFIGURATION_DHCP_ON_STOP  = 1 << 1,
  42         KEEP_CONFIGURATION_DHCP          = KEEP_CONFIGURATION_DHCP_ON_START | KEEP_CONFIGURATION_DHCP_ON_STOP,
  43         KEEP_CONFIGURATION_STATIC        = 1 << 2,
  44         KEEP_CONFIGURATION_YES           = KEEP_CONFIGURATION_DHCP | KEEP_CONFIGURATION_STATIC,
  45         _KEEP_CONFIGURATION_MAX,
  46         _KEEP_CONFIGURATION_INVALID = -1,
  47 } KeepConfiguration;
  48
  49 typedef struct Manager Manager;
  50
  51 struct Network {
  52         Manager *manager;
  53
  54         char *filename;
  55         char *name;
  56
  57         unsigned n_ref;
  58
  59         Set *match_mac;
  60         char **match_path;
  61         char **match_driver;
  62         char **match_type;
  63         char **match_name;
  64         char **match_property;
  65         LIST_HEAD(Condition, conditions);
  66
  67         char *description;
  68
  69         NetDev *bridge;
  70         NetDev *bond;
  71         NetDev *vrf;
  72         Hashmap *stacked_netdevs;
  73         char *bridge_name;
  74         char *bond_name;
  75         char *vrf_name;
  76         Hashmap *stacked_netdev_names;
  77
  78         /* DHCP Client Support */
  79         AddressFamilyBoolean dhcp;
  80         DHCPClientIdentifier dhcp_client_identifier;
  81         char *dhcp_vendor_class_identifier;
  82         char **dhcp_user_class;
  83         char *dhcp_hostname;
  84         uint64_t dhcp_max_attempts;
  85         unsigned dhcp_route_metric;
  86         uint32_t dhcp_route_table;
  87         uint16_t dhcp_client_port;
  88         bool dhcp_anonymize;
  89         bool dhcp_send_hostname;
  90         bool dhcp_broadcast;
  91         int dhcp_critical;
  92         bool dhcp_use_dns;
  93         bool dhcp_use_ntp;
  94         bool dhcp_use_mtu;
  95         bool dhcp_use_routes;
  96         bool dhcp_use_timezone;
  97         bool rapid_commit;
  98         bool dhcp_use_hostname;
  99         bool dhcp_route_table_set;
 100         bool dhcp_send_release;
 101         DHCPUseDomains dhcp_use_domains;
 102         Set *dhcp_black_listed_ip;
 103
 104         /* DHCP Server Support */
 105         bool dhcp_server;
 106         bool dhcp_server_emit_dns;
 107         struct in_addr *dhcp_server_dns;
 108         unsigned n_dhcp_server_dns;
 109         bool dhcp_server_emit_ntp;
 110         struct in_addr *dhcp_server_ntp;
 111         unsigned n_dhcp_server_ntp;
 112         bool dhcp_server_emit_router;
 113         bool dhcp_server_emit_timezone;
 114         char *dhcp_server_timezone;
 115         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 116         uint32_t dhcp_server_pool_offset;
 117         uint32_t dhcp_server_pool_size;
 118
 119         /* IPV4LL Support */
 120         AddressFamilyBoolean link_local;
 121         bool ipv4ll_route;
 122
 123         bool default_route_on_device;
 124
 125         /* IPv6 prefix delegation support */
 126         RADVPrefixDelegation router_prefix_delegation;
 127         usec_t router_lifetime_usec;
 128         uint8_t router_preference;
 129         bool router_managed;
 130         bool router_other_information;
 131         bool router_emit_dns;
 132         bool router_emit_domains;
 133         usec_t router_dns_lifetime_usec;
 134         struct in6_addr *router_dns;
 135         unsigned n_router_dns;
 136         OrderedSet *router_search_domains;
 137         bool dhcp6_force_pd_other_information; /* Start DHCPv6 PD also when 'O'
 138                                                   RA flag is set, see RFC 7084,
 139                                                   WPD-4 */
 140
 141         /* Bridge Support */
 142         int use_bpdu;
 143         int hairpin;
 144         int fast_leave;
 145         int allow_port_to_be_root;
 146         int unicast_flood;
 147         int multicast_flood;
 148         int multicast_to_unicast;
 149         int neighbor_suppression;
 150         int learning;
 151         int bridge_proxy_arp;
 152         int bridge_proxy_arp_wifi;
 153         uint32_t cost;
 154         uint16_t priority;
 155         MulticastRouter multicast_router;
 156
 157         bool use_br_vlan;
 158         uint16_t pvid;
 159         uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 160         uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN];
 161
 162         /* CAN support */
 163         size_t can_bitrate;
 164         unsigned can_sample_point;
 165         usec_t can_restart_us;
 166         int can_triple_sampling;
 167
 168         AddressFamilyBoolean ip_forward;
 169         bool ip_masquerade;
 170
 171         int ipv6_accept_ra;
 172         int ipv6_dad_transmits;
 173         int ipv6_hop_limit;
 174         int ipv6_proxy_ndp;
 175         int proxy_arp;
 176         uint32_t ipv6_mtu;
 177
 178         bool ipv6_accept_ra_use_dns;
 179         bool ipv6_accept_ra_use_autonomous_prefix;
 180         bool ipv6_accept_ra_use_onlink_prefix;
 181         bool active_slave;
 182         bool primary_slave;
 183         DHCPUseDomains ipv6_accept_ra_use_domains;
 184         uint32_t ipv6_accept_ra_route_table;
 185         bool ipv6_accept_ra_route_table_set;
 186         Set *ndisc_black_listed_prefix;
 187
 188         union in_addr_union ipv6_token;
 189         IPv6PrivacyExtensions ipv6_privacy_extensions;
 190
 191         struct ether_addr *mac;
 192         uint32_t mtu;
 193         int arp;
 194         int multicast;
 195         int allmulticast;
 196         bool unmanaged;
 197         bool configure_without_carrier;
 198         bool ignore_carrier_loss;
 199         KeepConfiguration keep_configuration;
 200         uint32_t iaid;
 201         DUID duid;
 202
 203         bool iaid_set;
 204
 205         bool required_for_online; /* Is this network required to be considered online? */
 206         LinkOperationalState required_operstate_for_online;
 207
 208         LLDPMode lldp_mode; /* LLDP reception */
 209         LLDPEmit lldp_emit; /* LLDP transmission */
 210
 211         LIST_HEAD(Address, static_addresses);
 212         LIST_HEAD(Route, static_routes);
 213         LIST_HEAD(FdbEntry, static_fdb_entries);
 214         LIST_HEAD(IPv6ProxyNDPAddress, ipv6_proxy_ndp_addresses);
 215         LIST_HEAD(Neighbor, neighbors);
 216         LIST_HEAD(AddressLabel, address_labels);
 217         LIST_HEAD(Prefix, static_prefixes);
 218         LIST_HEAD(RoutingPolicyRule, rules);
 219
 220         unsigned n_static_addresses;
 221         unsigned n_static_routes;
 222         unsigned n_static_fdb_entries;
 223         unsigned n_ipv6_proxy_ndp_addresses;
 224         unsigned n_neighbors;
 225         unsigned n_address_labels;
 226         unsigned n_static_prefixes;
 227         unsigned n_rules;
 228
 229         Hashmap *addresses_by_section;
 230         Hashmap *routes_by_section;
 231         Hashmap *fdb_entries_by_section;
 232         Hashmap *neighbors_by_section;
 233         Hashmap *address_labels_by_section;
 234         Hashmap *prefixes_by_section;
 235         Hashmap *rules_by_section;
 236
 237         /* All kinds of DNS configuration */
 238         struct in_addr_data *dns;
 239         unsigned n_dns;
 240         OrderedSet *search_domains, *route_domains;
 241
 242         int dns_default_route;
 243         ResolveSupport llmnr;
 244         ResolveSupport mdns;
 245         DnssecMode dnssec_mode;
 246         DnsOverTlsMode dns_over_tls_mode;
 247         Set *dnssec_negative_trust_anchors;
 248
 249         char **ntp;
 250         char **bind_carrier;
 251 };
 252
 253 Network *network_ref(Network *network);
 254 Network *network_unref(Network *network);
 255 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_unref);
 256
 257 int network_load(Manager *manager);
 258 int network_load_one(Manager *manager, const char *filename);
 259 int network_verify(Network *network);
 260
 261 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 262 int network_get(Manager *manager, sd_device *device, const char *ifname, const struct ether_addr *mac, Network **ret);
 263 int network_apply(Network *network, Link *link);
 264 void network_apply_anonymize_if_set(Network *network);
 265
 266 bool network_has_static_ipv6_addresses(Network *network);
 267
 268 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev);
 269 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel);
 270 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token);
 271 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions);
 272 CONFIG_PARSER_PROTOTYPE(config_parse_domains);
 273 CONFIG_PARSER_PROTOTYPE(config_parse_dns);
 274 CONFIG_PARSER_PROTOTYPE(config_parse_hostname);
 275 CONFIG_PARSER_PROTOTYPE(config_parse_timezone);
 276 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
 277 CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
 278 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online);
 279 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration);
 280
 281 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length);
 282
 283 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 284 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 285
 286 const char* keep_configuration_to_string(KeepConfiguration i) _const_;
 287 KeepConfiguration keep_configuration_from_string(const char *s) _pure_;