/* SPDX-License-Identifier: LGPL-2.1-or-later */ #pragma once #include #include #include "sd-bus.h" #include "sd-device.h" #include "sd-dhcp-client.h" #include "sd-dhcp-server.h" #include "sd-dhcp6-client.h" #include "sd-ipv4acd.h" #include "sd-ipv4ll.h" #include "sd-lldp-rx.h" #include "sd-lldp-tx.h" #include "sd-ndisc.h" #include "sd-radv.h" #include "sd-netlink.h" #include "ether-addr-util.h" #include "log-link.h" #include "netif-util.h" #include "network-util.h" #include "networkd-ipv6ll.h" #include "networkd-util.h" #include "ordered-set.h" #include "resolve-util.h" #include "set.h" typedef enum LinkState { LINK_STATE_PENDING, /* udev has not initialized the link */ LINK_STATE_INITIALIZED, /* udev has initialized the link */ LINK_STATE_CONFIGURING, /* configuring addresses, routes, etc. */ LINK_STATE_CONFIGURED, /* everything is configured */ LINK_STATE_UNMANAGED, /* Unmanaged=yes is set */ LINK_STATE_FAILED, /* at least one configuration process failed */ LINK_STATE_LINGER, /* RTM_DELLINK for the link has been received */ _LINK_STATE_MAX, _LINK_STATE_INVALID = -EINVAL, } LinkState; typedef struct Manager Manager; typedef struct Network Network; typedef struct NetDev NetDev; typedef struct DUID DUID; typedef struct Link { Manager *manager; unsigned n_ref; int ifindex; int master_ifindex; int dsa_master_ifindex; char *ifname; char **alternative_names; char *kind; unsigned short iftype; char *state_file; struct hw_addr_data hw_addr; struct hw_addr_data bcast_addr; struct hw_addr_data permanent_hw_addr; struct hw_addr_data requested_hw_addr; struct in6_addr ipv6ll_address; uint32_t mtu; uint32_t min_mtu; uint32_t max_mtu; uint32_t original_mtu; sd_device *sd_device; char *driver; /* link local addressing */ IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode; /* wlan */ enum nl80211_iftype wlan_iftype; char *ssid; char *previous_ssid; struct ether_addr bssid; unsigned flags; uint8_t kernel_operstate; sd_event_source *carrier_lost_timer; Network *network; NetDev *netdev; LinkState state; LinkOperationalState operstate; LinkCarrierState carrier_state; LinkAddressState address_state; LinkAddressState ipv4_address_state; LinkAddressState ipv6_address_state; LinkOnlineState online_state; unsigned static_address_messages; unsigned static_address_label_messages; unsigned static_bridge_fdb_messages; unsigned static_bridge_mdb_messages; unsigned static_ipv6_proxy_ndp_messages; unsigned static_neighbor_messages; unsigned static_nexthop_messages; unsigned static_route_messages; unsigned static_routing_policy_rule_messages; unsigned tc_messages; unsigned sr_iov_messages; unsigned set_link_messages; unsigned set_flags_messages; unsigned create_stacked_netdev_messages; Set *addresses; Set *neighbors; Set *routes; Set *nexthops; Set *qdiscs; Set *tclasses; sd_dhcp_client *dhcp_client; sd_dhcp_lease *dhcp_lease; char *lease_file; unsigned dhcp4_messages; bool dhcp4_route_failed:1; bool dhcp4_route_retrying:1; bool dhcp4_configured:1; char *dhcp4_6rd_tunnel_name; sd_ipv4ll *ipv4ll; bool ipv4ll_address_configured:1; bool static_addresses_configured:1; bool static_address_labels_configured:1; bool static_bridge_fdb_configured:1; bool static_bridge_mdb_configured:1; bool static_ipv6_proxy_ndp_configured:1; bool static_neighbors_configured:1; bool static_nexthops_configured:1; bool static_routes_configured:1; bool static_routing_policy_rules_configured:1; bool tc_configured:1; bool sr_iov_configured:1; bool activated:1; bool master_set:1; bool stacked_netdevs_created:1; sd_dhcp_server *dhcp_server; sd_ndisc *ndisc; Set *ndisc_rdnss; Set *ndisc_dnssl; unsigned ndisc_messages; bool ndisc_configured:1; sd_radv *radv; sd_dhcp6_client *dhcp6_client; sd_dhcp6_lease *dhcp6_lease; unsigned dhcp6_messages; bool dhcp6_configured; Set *dhcp_pd_prefixes; unsigned dhcp_pd_messages; bool dhcp_pd_configured; /* This is about LLDP reception */ sd_lldp_rx *lldp_rx; char *lldp_file; /* This is about LLDP transmission */ sd_lldp_tx *lldp_tx; Hashmap *bound_by_links; Hashmap *bound_to_links; Set *slaves; /* For speed meter */ struct rtnl_link_stats64 stats_old, stats_new; bool stats_updated; /* All kinds of DNS configuration the user configured via D-Bus */ struct in_addr_full **dns; unsigned n_dns; OrderedSet *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; /* Similar, but NTP server configuration */ char **ntp; } Link; typedef int (*link_netlink_message_handler_t)(sd_netlink*, sd_netlink_message*, Link*); bool link_is_ready_to_configure(Link *link, bool allow_unmanaged); void link_ntp_settings_clear(Link *link); void link_dns_settings_clear(Link *link); Link *link_unref(Link *link); Link *link_ref(Link *link); DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref); DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback, Link, link_unref); int link_get_by_index(Manager *m, int ifindex, Link **ret); int link_get_by_name(Manager *m, const char *ifname, Link **ret); int link_get_by_hw_addr(Manager *m, const struct hw_addr_data *hw_addr, Link **ret); int link_get_master(Link *link, Link **ret); int link_getlink_handler_internal(sd_netlink *rtnl, sd_netlink_message *m, Link *link, const char *error_msg); int link_call_getlink(Link *link, link_netlink_message_handler_t callback); int link_handle_bound_to_list(Link *link); void link_enter_failed(Link *link); void link_set_state(Link *link, LinkState state); void link_check_ready(Link *link); void link_update_operstate(Link *link, bool also_update_bond_master); static inline bool link_has_carrier(Link *link) { assert(link); return netif_has_carrier(link->kernel_operstate, link->flags); } bool link_ipv6_enabled(Link *link); int link_ipv6ll_gained(Link *link); bool link_ipv4ll_enabled(Link *link); int link_stop_engines(Link *link, bool may_keep_dhcp); const char* link_state_to_string(LinkState s) _const_; LinkState link_state_from_string(const char *s) _pure_; int link_reconfigure(Link *link, bool force); int link_reconfigure_after_sleep(Link *link); int manager_udev_process_link(sd_device_monitor *monitor, sd_device *device, void *userdata); int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, Manager *m); int link_flags_to_string_alloc(uint32_t flags, char **ret); const char *kernel_operstate_to_string(int t) _const_;