diff options
Diffstat (limited to 'src/network/networkd-link.h')
| -rw-r--r-- | src/network/networkd-link.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h new file mode 100644 index 0000000..f0d5d46 --- /dev/null +++ b/src/network/networkd-link.h @@ -0,0 +1,245 @@ +/* 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-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; + int sr_iov_phys_port_ifindex; + Set *sr_iov_virt_port_ifindices; + + 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 *dev; + 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_configured; + 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; + sd_event_source *ndisc_expire; + 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); + +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_impl(Link *link, bool force); +int link_reconfigure(Link *link, bool force); +int link_reconfigure_after_sleep(Link *link); + +int manager_udev_process_link(Manager *m, sd_device *device, sd_device_action_t action); +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_; |