/* SPDX-License-Identifier: LGPL-2.1+ */ #pragma once #include "sd-bus.h" #include "sd-device.h" #include "condition.h" #include "conf-parser.h" #include "dhcp-identifier.h" #include "hashmap.h" #include "netdev/netdev.h" #include "networkd-address-label.h" #include "networkd-address.h" #include "networkd-brvlan.h" #include "networkd-fdb.h" #include "networkd-ipv6-proxy-ndp.h" #include "networkd-lldp-tx.h" #include "networkd-neighbor.h" #include "networkd-radv.h" #include "networkd-route.h" #include "networkd-routing-policy-rule.h" #include "networkd-util.h" #include "resolve-util.h" #define DHCP_ROUTE_METRIC 1024 #define IPV4LL_ROUTE_METRIC 2048 #define BRIDGE_VLAN_BITMAP_MAX 4096 #define BRIDGE_VLAN_BITMAP_LEN (BRIDGE_VLAN_BITMAP_MAX / 32) typedef enum DHCPClientIdentifier { DHCP_CLIENT_ID_MAC, DHCP_CLIENT_ID_DUID, /* The following option may not be good for RFC regarding DHCP (3315 and 4361). * But some setups require this. E.g., Sky Broadband, the second largest provider in the UK * requires the client id to be set to a custom string, reported at * https://github.com/systemd/systemd/issues/7828 */ DHCP_CLIENT_ID_DUID_ONLY, _DHCP_CLIENT_ID_MAX, _DHCP_CLIENT_ID_INVALID = -1, } DHCPClientIdentifier; typedef enum IPv6PrivacyExtensions { /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */ IPV6_PRIVACY_EXTENSIONS_NO, IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC, IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */ _IPV6_PRIVACY_EXTENSIONS_MAX, _IPV6_PRIVACY_EXTENSIONS_INVALID = -1, } IPv6PrivacyExtensions; typedef enum DHCPUseDomains { DHCP_USE_DOMAINS_NO, DHCP_USE_DOMAINS_YES, DHCP_USE_DOMAINS_ROUTE, _DHCP_USE_DOMAINS_MAX, _DHCP_USE_DOMAINS_INVALID = -1, } DHCPUseDomains; typedef enum LLDPMode { LLDP_MODE_NO = 0, LLDP_MODE_YES = 1, LLDP_MODE_ROUTERS_ONLY = 2, _LLDP_MODE_MAX, _LLDP_MODE_INVALID = -1, } LLDPMode; typedef struct DUID { /* Value of Type in [DHCP] section */ DUIDType type; uint8_t raw_data_len; uint8_t raw_data[MAX_DUID_LEN]; usec_t llt_time; } DUID; typedef enum RADVPrefixDelegation { RADV_PREFIX_DELEGATION_NONE, RADV_PREFIX_DELEGATION_STATIC, RADV_PREFIX_DELEGATION_DHCP6, RADV_PREFIX_DELEGATION_BOTH, _RADV_PREFIX_DELEGATION_MAX, _RADV_PREFIX_DELEGATION_INVALID = -1, } RADVPrefixDelegation; typedef struct NetworkConfigSection { unsigned line; char filename[]; } NetworkConfigSection; int network_config_section_new(const char *filename, unsigned line, NetworkConfigSection **s); void network_config_section_free(NetworkConfigSection *network); DEFINE_TRIVIAL_CLEANUP_FUNC(NetworkConfigSection*, network_config_section_free); extern const struct hash_ops network_config_hash_ops; typedef struct Manager Manager; struct Network { Manager *manager; char *filename; char *name; Set *match_mac; char **match_path; char **match_driver; char **match_type; char **match_name; Condition *match_host; Condition *match_virt; Condition *match_kernel_cmdline; Condition *match_kernel_version; Condition *match_arch; char *description; NetDev *bridge; NetDev *bond; NetDev *vrf; Hashmap *stacked_netdevs; /* DHCP Client Support */ AddressFamilyBoolean dhcp; DHCPClientIdentifier dhcp_client_identifier; char *dhcp_vendor_class_identifier; char **dhcp_user_class; char *dhcp_hostname; unsigned dhcp_route_metric; uint32_t dhcp_route_table; uint16_t dhcp_client_port; bool dhcp_anonymize; bool dhcp_send_hostname; bool dhcp_broadcast; bool dhcp_critical; bool dhcp_use_dns; bool dhcp_use_ntp; bool dhcp_use_mtu; bool dhcp_use_routes; bool dhcp_use_timezone; bool rapid_commit; bool dhcp_use_hostname; bool dhcp_route_table_set; DHCPUseDomains dhcp_use_domains; /* DHCP Server Support */ bool dhcp_server; bool dhcp_server_emit_dns; struct in_addr *dhcp_server_dns; unsigned n_dhcp_server_dns; bool dhcp_server_emit_ntp; struct in_addr *dhcp_server_ntp; unsigned n_dhcp_server_ntp; bool dhcp_server_emit_router; bool dhcp_server_emit_timezone; char *dhcp_server_timezone; usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec; uint32_t dhcp_server_pool_offset; uint32_t dhcp_server_pool_size; /* IPV4LL Support */ AddressFamilyBoolean link_local; bool ipv4ll_route; /* IPv6 prefix delegation support */ RADVPrefixDelegation router_prefix_delegation; usec_t router_lifetime_usec; uint8_t router_preference; bool router_managed; bool router_other_information; bool router_emit_dns; bool router_emit_domains; usec_t router_dns_lifetime_usec; struct in6_addr *router_dns; unsigned n_router_dns; char **router_search_domains; bool dhcp6_force_pd_other_information; /* Start DHCPv6 PD also when 'O' RA flag is set, see RFC 7084, WPD-4 */ /* Bridge Support */ int use_bpdu; int hairpin; int fast_leave; int allow_port_to_be_root; int unicast_flood; int multicast_to_unicast; uint32_t cost; uint16_t priority; bool use_br_vlan; uint16_t pvid; uint32_t br_vid_bitmap[BRIDGE_VLAN_BITMAP_LEN]; uint32_t br_untagged_bitmap[BRIDGE_VLAN_BITMAP_LEN]; /* CAN support */ size_t can_bitrate; unsigned can_sample_point; usec_t can_restart_us; AddressFamilyBoolean ip_forward; bool ip_masquerade; int ipv6_accept_ra; int ipv6_dad_transmits; int ipv6_hop_limit; int ipv6_proxy_ndp; int proxy_arp; uint32_t ipv6_mtu; bool ipv6_accept_ra_use_dns; bool active_slave; bool primary_slave; DHCPUseDomains ipv6_accept_ra_use_domains; uint32_t ipv6_accept_ra_route_table; union in_addr_union ipv6_token; IPv6PrivacyExtensions ipv6_privacy_extensions; struct ether_addr *mac; uint32_t mtu; int arp; int multicast; int allmulticast; bool unmanaged; bool configure_without_carrier; uint32_t iaid; DUID duid; bool iaid_set; bool required_for_online; /* Is this network required to be considered online? */ LLDPMode lldp_mode; /* LLDP reception */ LLDPEmit lldp_emit; /* LLDP transmission */ LIST_HEAD(Address, static_addresses); LIST_HEAD(Route, static_routes); LIST_HEAD(FdbEntry, static_fdb_entries); LIST_HEAD(IPv6ProxyNDPAddress, ipv6_proxy_ndp_addresses); LIST_HEAD(Neighbor, neighbors); LIST_HEAD(AddressLabel, address_labels); LIST_HEAD(Prefix, static_prefixes); LIST_HEAD(RoutingPolicyRule, rules); unsigned n_static_addresses; unsigned n_static_routes; unsigned n_static_fdb_entries; unsigned n_ipv6_proxy_ndp_addresses; unsigned n_neighbors; unsigned n_address_labels; unsigned n_static_prefixes; unsigned n_rules; Hashmap *addresses_by_section; Hashmap *routes_by_section; Hashmap *fdb_entries_by_section; Hashmap *neighbors_by_section; Hashmap *address_labels_by_section; Hashmap *prefixes_by_section; Hashmap *rules_by_section; /* All kinds of DNS configuration */ struct in_addr_data *dns; unsigned n_dns; char **search_domains, **route_domains; int dns_default_route; ResolveSupport llmnr; ResolveSupport mdns; DnssecMode dnssec_mode; DnsOverTlsMode dns_over_tls_mode; Set *dnssec_negative_trust_anchors; char **ntp; char **bind_carrier; LIST_FIELDS(Network, networks); }; void network_free(Network *network); DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free); int network_load(Manager *manager); int network_load_one(Manager *manager, const char *filename); int network_get_by_name(Manager *manager, const char *name, Network **ret); int network_get(Manager *manager, sd_device *device, const char *ifname, const struct ether_addr *mac, Network **ret); int network_apply(Network *network, Link *link); void network_apply_anonymize_if_set(Network *network); bool network_has_static_ipv6_addresses(Network *network); CONFIG_PARSER_PROTOTYPE(config_parse_netdev); CONFIG_PARSER_PROTOTYPE(config_parse_domains); CONFIG_PARSER_PROTOTYPE(config_parse_tunnel); CONFIG_PARSER_PROTOTYPE(config_parse_dhcp); CONFIG_PARSER_PROTOTYPE(config_parse_dns); CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_client_identifier); CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token); CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions); CONFIG_PARSER_PROTOTYPE(config_parse_hostname); CONFIG_PARSER_PROTOTYPE(config_parse_timezone); CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_dns); CONFIG_PARSER_PROTOTYPE(config_parse_radv_dns); CONFIG_PARSER_PROTOTYPE(config_parse_radv_search_domains); CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_ntp); CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors); CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_domains); CONFIG_PARSER_PROTOTYPE(config_parse_lldp_mode); CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_route_table); CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_user_class); CONFIG_PARSER_PROTOTYPE(config_parse_ntp); CONFIG_PARSER_PROTOTYPE(config_parse_iaid); /* Legacy IPv4LL support */ CONFIG_PARSER_PROTOTYPE(config_parse_ipv4ll); const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, GPERF_LEN_TYPE length); extern const sd_bus_vtable network_vtable[]; int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_; IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_; const char* dhcp_use_domains_to_string(DHCPUseDomains p) _const_; DHCPUseDomains dhcp_use_domains_from_string(const char *s) _pure_; const char* lldp_mode_to_string(LLDPMode m) _const_; LLDPMode lldp_mode_from_string(const char *s) _pure_; const char* radv_prefix_delegation_to_string(RADVPrefixDelegation i) _const_; RADVPrefixDelegation radv_prefix_delegation_from_string(const char *s) _pure_;