diff options
Diffstat (limited to 'src/network/networkd-link.h')
| -rw-r--r-- | src/network/networkd-link.h | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h new file mode 100644 index 0000000..cd54192 --- /dev/null +++ b/src/network/networkd-link.h @@ -0,0 +1,249 @@ +/* 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) |