1 /* SPDX-License-Identifier: LGPL-2.1+ */
8 #include "sd-dhcp-client.h"
9 #include "sd-dhcp-server.h"
10 #include "sd-dhcp6-client.h"
11 #include "sd-ipv4ll.h"
15 #include "sd-netlink.h"
19 #include "network-util.h"
22 typedef enum LinkState
{
23 LINK_STATE_PENDING
, /* udev has not initialized the link */
24 LINK_STATE_INITIALIZED
, /* udev has initialized the link */
25 LINK_STATE_CONFIGURING
, /* configuring addresses, routes, etc. */
26 LINK_STATE_CONFIGURED
, /* everything is configured */
27 LINK_STATE_UNMANAGED
, /* Unmanaged=yes is set */
28 LINK_STATE_FAILED
, /* at least one configuration process failed */
29 LINK_STATE_LINGER
, /* RTM_DELLINK for the link has been received */
31 _LINK_STATE_INVALID
= -1
34 typedef struct Manager Manager
;
35 typedef struct Network Network
;
36 typedef struct Address Address
;
37 typedef struct DUID DUID
;
48 unsigned short iftype
;
50 struct ether_addr mac
;
51 struct in6_addr ipv6ll_address
;
56 uint8_t kernel_operstate
;
61 LinkOperationalState operstate
;
63 unsigned address_messages
;
64 unsigned address_label_messages
;
65 unsigned neighbor_messages
;
66 unsigned route_messages
;
67 unsigned routing_policy_rule_messages
;
68 unsigned routing_policy_rule_remove_messages
;
70 /* link_is_enslaved() has additional checks. So, it is named _raw. */
74 Set
*addresses_foreign
;
78 bool addresses_configured
;
81 sd_dhcp_client
*dhcp_client
;
82 sd_dhcp_lease
*dhcp_lease
;
84 uint32_t original_mtu
;
85 unsigned dhcp4_messages
;
86 bool dhcp4_configured
;
87 bool dhcp6_configured
;
89 unsigned ndisc_messages
;
90 bool ndisc_configured
;
93 bool ipv4ll_address
:1;
96 bool neighbors_configured
;
98 bool static_routes_configured
;
99 bool routing_policy_rules_configured
;
102 LIST_HEAD(Address
, pool_addresses
);
104 sd_dhcp_server
*dhcp_server
;
112 sd_dhcp6_client
*dhcp6_client
;
113 bool rtnl_extended_attrs
;
115 /* This is about LLDP reception */
119 /* This is about LLDP transmission */
120 unsigned lldp_tx_fast
; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
121 sd_event_source
*lldp_emit_event_source
;
123 Hashmap
*bound_by_links
;
124 Hashmap
*bound_to_links
;
128 typedef int (*link_netlink_message_handler_t
)(sd_netlink
*, sd_netlink_message
*, Link
*);
130 DUID
*link_get_duid(Link
*link
);
131 int get_product_uuid_handler(sd_bus_message
*m
, void *userdata
, sd_bus_error
*ret_error
);
133 Link
*link_unref(Link
*link
);
134 Link
*link_ref(Link
*link
);
135 DEFINE_TRIVIAL_CLEANUP_FUNC(Link
*, link_unref
);
136 DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback
, Link
, link_unref
);
138 int link_get(Manager
*m
, int ifindex
, Link
**ret
);
139 int link_add(Manager
*manager
, sd_netlink_message
*message
, Link
**ret
);
140 void link_drop(Link
*link
);
142 int link_down(Link
*link
, link_netlink_message_handler_t callback
);
144 void link_enter_failed(Link
*link
);
145 int link_initialized(Link
*link
, sd_device
*device
);
147 void link_check_ready(Link
*link
);
149 void link_update_operstate(Link
*link
, bool also_update_bond_master
);
150 int link_update(Link
*link
, sd_netlink_message
*message
);
152 void link_dirty(Link
*link
);
153 void link_clean(Link
*link
);
154 int link_save(Link
*link
);
156 int link_carrier_reset(Link
*link
);
157 bool link_has_carrier(Link
*link
);
159 int link_ipv6ll_gained(Link
*link
, const struct in6_addr
*address
);
161 int link_set_mtu(Link
*link
, uint32_t mtu
);
163 int ipv4ll_configure(Link
*link
);
164 bool link_ipv4ll_enabled(Link
*link
);
165 bool link_ipv4ll_fallback_enabled(Link
*link
);
167 int dhcp4_configure(Link
*link
);
168 int dhcp4_set_client_identifier(Link
*link
);
169 int dhcp4_set_promote_secondaries(Link
*link
);
170 int dhcp6_request_prefix_delegation(Link
*link
);
171 int dhcp6_configure(Link
*link
);
172 int dhcp6_request_address(Link
*link
, int ir
);
173 int dhcp6_lease_pd_prefix_lost(sd_dhcp6_client
*client
, Link
* link
);
175 int link_stop_clients(Link
*link
);
177 const char* link_state_to_string(LinkState s
) _const_
;
178 LinkState
link_state_from_string(const char *s
) _pure_
;
180 extern const sd_bus_vtable link_vtable
[];
182 int link_node_enumerator(sd_bus
*bus
, const char *path
, void *userdata
, char ***nodes
, sd_bus_error
*error
);
183 int link_object_find(sd_bus
*bus
, const char *path
, const char *interface
, void *userdata
, void **found
, sd_bus_error
*error
);
184 int link_send_changed(Link
*link
, const char *property
, ...) _sentinel_
;
186 uint32_t link_get_vrf_table(Link
*link
);
187 uint32_t link_get_dhcp_route_table(Link
*link
);
188 uint32_t link_get_ipv6_accept_ra_route_table(Link
*link
);
189 int link_request_set_routes(Link
*link
);
191 #define ADDRESS_FMT_VAL(address) \
192 be32toh((address).s_addr) >> 24, \
193 (be32toh((address).s_addr) >> 16) & 0xFFu, \
194 (be32toh((address).s_addr) >> 8) & 0xFFu, \
195 be32toh((address).s_addr) & 0xFFu