diff options
Diffstat (limited to 'src/network/networkd-link.h')
| -rw-r--r-- | src/network/networkd-link.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h new file mode 100644 index 0000000..dcb1ea6 --- /dev/null +++ b/src/network/networkd-link.h @@ -0,0 +1,216 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#pragma once + +#include <endian.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-ipv4ll.h" +#include "sd-lldp.h" +#include "sd-ndisc.h" +#include "sd-radv.h" +#include "sd-netlink.h" + +#include "list.h" +#include "set.h" + +typedef enum LinkState { + LINK_STATE_PENDING, + LINK_STATE_CONFIGURING, + LINK_STATE_CONFIGURED, + LINK_STATE_UNMANAGED, + LINK_STATE_FAILED, + LINK_STATE_LINGER, + _LINK_STATE_MAX, + _LINK_STATE_INVALID = -1 +} LinkState; + +typedef enum LinkOperationalState { + LINK_OPERSTATE_OFF, + LINK_OPERSTATE_NO_CARRIER, + LINK_OPERSTATE_DORMANT, + LINK_OPERSTATE_CARRIER, + LINK_OPERSTATE_DEGRADED, + LINK_OPERSTATE_ROUTABLE, + _LINK_OPERSTATE_MAX, + _LINK_OPERSTATE_INVALID = -1 +} LinkOperationalState; + +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 *kind; + unsigned short iftype; + char *state_file; + struct ether_addr mac; + struct in6_addr ipv6ll_address; + uint32_t mtu; + sd_device *sd_device; + + unsigned flags; + uint8_t kernel_operstate; + + Network *network; + + LinkState state; + LinkOperationalState operstate; + + unsigned address_messages; + unsigned address_label_messages; + unsigned neighbor_messages; + unsigned route_messages; + unsigned routing_policy_rule_messages; + unsigned routing_policy_rule_remove_messages; + unsigned enslaving; + + Set *addresses; + Set *addresses_foreign; + Set *routes; + Set *routes_foreign; + + bool addresses_configured; + bool addresses_ready; + + sd_dhcp_client *dhcp_client; + sd_dhcp_lease *dhcp_lease; + char *lease_file; + uint32_t original_mtu; + unsigned dhcp4_messages; + bool dhcp4_configured; + bool dhcp6_configured; + + unsigned ndisc_messages; + bool ndisc_configured; + + sd_ipv4ll *ipv4ll; + bool ipv4ll_address:1; + bool ipv4ll_route:1; + + bool neighbors_configured; + + bool static_routes_configured; + bool routing_policy_rules_configured; + bool setting_mtu; + + LIST_HEAD(Address, pool_addresses); + + sd_dhcp_server *dhcp_server; + + sd_ndisc *ndisc; + Set *ndisc_rdnss; + Set *ndisc_dnssl; + + sd_radv *radv; + + sd_dhcp6_client *dhcp6_client; + bool rtnl_extended_attrs; + + /* 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; +} Link; + +typedef int (*link_netlink_message_handler_t)(sd_netlink*, sd_netlink_message*, Link*); + +DUID *link_get_duid(Link *link); +int get_product_uuid_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error); + +Link *link_unref(Link *link); +Link *link_ref(Link *link); +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); + +void link_enter_failed(Link *link); +int link_initialized(Link *link, sd_device *device); + +void link_check_ready(Link *link); + +void link_update_operstate(Link *link); +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_carrier_reset(Link *link); +bool link_has_carrier(Link *link); + +int link_ipv6ll_gained(Link *link, const struct in6_addr *address); + +int link_set_mtu(Link *link, uint32_t mtu); + +int ipv4ll_configure(Link *link); +int dhcp4_configure(Link *link); +int dhcp4_set_client_identifier(Link *link); +int dhcp4_set_promote_secondaries(Link *link); +int dhcp6_request_prefix_delegation(Link *link); +int dhcp6_configure(Link *link); +int dhcp6_request_address(Link *link, int ir); +int dhcp6_lease_pd_prefix_lost(sd_dhcp6_client *client, Link* link); + +const char* link_state_to_string(LinkState s) _const_; +LinkState link_state_from_string(const char *s) _pure_; + +const char* link_operstate_to_string(LinkOperationalState s) _const_; +LinkOperationalState link_operstate_from_string(const char *s) _pure_; + +extern const sd_bus_vtable link_vtable[]; + +int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); +int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); +int link_send_changed(Link *link, const char *property, ...) _sentinel_; + +/* Macros which append INTERFACE= to the message */ + +#define log_link_full(link, level, error, ...) \ + ({ \ + const Link *_l = (link); \ + _l ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _l->ifname, NULL, NULL, ##__VA_ARGS__) : \ + log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \ + }) \ + +#define log_link_debug(link, ...) log_link_full(link, LOG_DEBUG, 0, ##__VA_ARGS__) +#define log_link_info(link, ...) log_link_full(link, LOG_INFO, 0, ##__VA_ARGS__) +#define log_link_notice(link, ...) log_link_full(link, LOG_NOTICE, 0, ##__VA_ARGS__) +#define log_link_warning(link, ...) log_link_full(link, LOG_WARNING, 0, ##__VA_ARGS__) +#define log_link_error(link, ...) log_link_full(link, LOG_ERR, 0, ##__VA_ARGS__) + +#define log_link_debug_errno(link, error, ...) log_link_full(link, LOG_DEBUG, error, ##__VA_ARGS__) +#define log_link_info_errno(link, error, ...) log_link_full(link, LOG_INFO, error, ##__VA_ARGS__) +#define log_link_notice_errno(link, error, ...) log_link_full(link, LOG_NOTICE, error, ##__VA_ARGS__) +#define log_link_warning_errno(link, error, ...) log_link_full(link, LOG_WARNING, error, ##__VA_ARGS__) +#define log_link_error_errno(link, error, ...) log_link_full(link, LOG_ERR, error, ##__VA_ARGS__) + +#define LOG_LINK_MESSAGE(link, fmt, ...) "MESSAGE=%s: " fmt, (link)->ifname, ##__VA_ARGS__ +#define LOG_LINK_INTERFACE(link) "INTERFACE=%s", (link)->ifname + +#define ADDRESS_FMT_VAL(address) \ + be32toh((address).s_addr) >> 24, \ + (be32toh((address).s_addr) >> 16) & 0xFFu, \ + (be32toh((address).s_addr) >> 8) & 0xFFu, \ + be32toh((address).s_addr) & 0xFFu |