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