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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <endian.h>
#include <linux/nl80211.h>
#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.h"
#include "sd-ndisc.h"
#include "sd-radv.h"
#include "sd-netlink.h"
#include "ether-addr-util.h"
#include "log-link.h"
#include "network-util.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 = -1
} LinkState;
typedef struct Manager Manager;
typedef struct Network Network;
typedef struct Address Address;
typedef struct DUID DUID;
typedef struct Link {
Manager *manager;
unsigned n_ref;
int ifindex;
int master_ifindex;
char *ifname;
char **alternative_names;
char *kind;
unsigned short iftype;
char *state_file;
hw_addr_data hw_addr;
hw_addr_data bcast_addr;
struct ether_addr permanent_mac;
struct in6_addr ipv6ll_address;
uint32_t mtu;
sd_device *sd_device;
char *driver;
/* wlan */
enum nl80211_iftype wlan_iftype;
char *ssid;
struct ether_addr bssid;
unsigned flags;
uint8_t kernel_operstate;
Network *network;
LinkState state;
LinkOperationalState operstate;
LinkCarrierState carrier_state;
LinkAddressState address_state;
unsigned address_messages;
unsigned address_remove_messages;
unsigned address_label_messages;
unsigned neighbor_messages;
unsigned route_messages;
unsigned nexthop_messages;
unsigned routing_policy_rule_messages;
unsigned routing_policy_rule_remove_messages;
unsigned tc_messages;
unsigned sr_iov_messages;
unsigned enslaving;
unsigned bridge_mdb_messages;
Set *addresses;
Set *addresses_foreign;
Set *pool_addresses;
Set *static_addresses;
Set *neighbors;
Set *neighbors_foreign;
Set *routes;
Set *routes_foreign;
Set *nexthops;
Set *nexthops_foreign;
sd_dhcp_client *dhcp_client;
sd_dhcp_lease *dhcp_lease;
Address *dhcp_address, *dhcp_address_old;
Set *dhcp_routes, *dhcp_routes_old;
char *lease_file;
uint32_t original_mtu;
unsigned dhcp4_messages;
unsigned dhcp4_remove_messages;
sd_ipv4acd *dhcp_acd;
bool dhcp4_route_failed:1;
bool dhcp4_route_retrying:1;
bool dhcp4_configured:1;
bool dhcp4_address_bind:1;
sd_ipv4ll *ipv4ll;
bool ipv4ll_address_configured:1;
bool request_static_addresses:1;
bool addresses_configured:1;
bool addresses_ready:1;
bool neighbors_configured:1;
bool static_routes_configured:1;
bool static_nexthops_configured:1;
bool routing_policy_rules_configured:1;
bool tc_configured:1;
bool sr_iov_configured:1;
bool setting_mtu:1;
bool setting_genmode:1;
bool ipv6_mtu_set:1;
bool bridge_mdb_configured:1;
sd_dhcp_server *dhcp_server;
sd_ndisc *ndisc;
Set *ndisc_rdnss;
Set *ndisc_dnssl;
Set *ndisc_addresses;
Set *ndisc_routes;
unsigned ndisc_addresses_messages;
unsigned ndisc_routes_messages;
bool ndisc_addresses_configured:1;
bool ndisc_routes_configured:1;
sd_radv *radv;
sd_dhcp6_client *dhcp6_client;
sd_dhcp6_lease *dhcp6_lease;
Set *dhcp6_addresses, *dhcp6_addresses_old;
Set *dhcp6_routes, *dhcp6_routes_old;
Set *dhcp6_pd_addresses, *dhcp6_pd_addresses_old;
Set *dhcp6_pd_routes, *dhcp6_pd_routes_old;
unsigned dhcp6_address_messages;
unsigned dhcp6_route_messages;
unsigned dhcp6_pd_address_messages;
unsigned dhcp6_pd_route_messages;
bool dhcp6_address_configured:1;
bool dhcp6_route_configured:1;
bool dhcp6_pd_address_configured:1;
bool dhcp6_pd_route_configured:1;
bool dhcp6_pd_prefixes_assigned:1;
/* This is about LLDP reception */
sd_lldp *lldp;
char *lldp_file;
/* This is about LLDP transmission */
unsigned lldp_tx_fast; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
sd_event_source *lldp_emit_event_source;
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*);
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(Manager *m, int ifindex, Link **ret);
int link_add(Manager *manager, sd_netlink_message *message, Link **ret);
void link_drop(Link *link);
int link_down(Link *link, link_netlink_message_handler_t callback);
void link_enter_failed(Link *link);
int link_initialized(Link *link, sd_device *device);
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);
int link_update(Link *link, sd_netlink_message *message);
void link_dirty(Link *link);
void link_clean(Link *link);
int link_save(Link *link);
int link_save_and_clean(Link *link);
int link_carrier_reset(Link *link);
bool link_has_carrier(Link *link);
bool link_ipv6_enabled(Link *link);
bool link_ipv6ll_enabled(Link *link);
int link_ipv6ll_gained(Link *link, const struct in6_addr *address);
int link_set_mtu(Link *link, uint32_t mtu);
bool link_ipv4ll_enabled(Link *link, AddressFamily mask);
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_configure(Link *link);
int link_reconfigure(Link *link, bool force);
int log_link_message_full_errno(Link *link, sd_netlink_message *m, int level, int err, const char *msg);
#define log_link_message_error_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_ERR, err, msg)
#define log_link_message_warning_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_WARNING, err, msg)
#define log_link_message_notice_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_NOTICE, err, msg)
#define log_link_message_info_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_INFO, err, msg)
#define log_link_message_debug_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_DEBUG, err, msg)
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