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"
20 #include "networkd-util.h"
23 typedef enum LinkState
{
24 LINK_STATE_PENDING
, /* udev has not initialized the link */
25 LINK_STATE_INITIALIZED
, /* udev has initialized the link */
26 LINK_STATE_CONFIGURING
, /* configuring addresses, routes, etc. */
27 LINK_STATE_CONFIGURED
, /* everything is configured */
28 LINK_STATE_UNMANAGED
, /* Unmanaged=yes is set */
29 LINK_STATE_FAILED
, /* at least one configuration process failed */
30 LINK_STATE_LINGER
, /* RTM_DELLINK for the link has been received */
32 _LINK_STATE_INVALID
= -1
35 typedef struct Manager Manager
;
36 typedef struct Network Network
;
37 typedef struct Address Address
;
38 typedef struct DUID DUID
;
49 unsigned short iftype
;
51 struct ether_addr mac
;
52 struct in6_addr ipv6ll_address
;
57 uint8_t kernel_operstate
;
62 LinkOperationalState operstate
;
64 unsigned address_messages
;
65 unsigned address_label_messages
;
66 unsigned neighbor_messages
;
67 unsigned route_messages
;
68 unsigned routing_policy_rule_messages
;
69 unsigned routing_policy_rule_remove_messages
;
73 Set
*addresses_foreign
;
77 bool addresses_configured
;
80 sd_dhcp_client
*dhcp_client
;
81 sd_dhcp_lease
*dhcp_lease
, *dhcp_lease_old
;
83 uint32_t original_mtu
;
84 unsigned dhcp4_messages
;
85 bool dhcp4_configured
;
86 bool dhcp6_configured
;
88 unsigned ndisc_messages
;
89 bool ndisc_configured
;
92 bool ipv4ll_address
:1;
95 bool neighbors_configured
;
97 bool static_routes_configured
;
98 bool routing_policy_rules_configured
;
101 LIST_HEAD(Address
, pool_addresses
);
103 sd_dhcp_server
*dhcp_server
;
111 sd_dhcp6_client
*dhcp6_client
;
112 bool rtnl_extended_attrs
;
114 /* This is about LLDP reception */
118 /* This is about LLDP transmission */
119 unsigned lldp_tx_fast
; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
120 sd_event_source
*lldp_emit_event_source
;
122 Hashmap
*bound_by_links
;
123 Hashmap
*bound_to_links
;
126 /* For speed meter */
127 struct rtnl_link_stats64 stats_old
, stats_new
;
130 int sysctl_ipv6_enabled
;
133 typedef int (*link_netlink_message_handler_t
)(sd_netlink
*, sd_netlink_message
*, Link
*);
135 DUID
*link_get_duid(Link
*link
);
136 int get_product_uuid_handler(sd_bus_message
*m
, void *userdata
, sd_bus_error
*ret_error
);
138 Link
*link_unref(Link
*link
);
139 Link
*link_ref(Link
*link
);
140 DEFINE_TRIVIAL_CLEANUP_FUNC(Link
*, link_unref
);
141 DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback
, Link
, link_unref
);
143 int link_get(Manager
*m
, int ifindex
, Link
**ret
);
144 int link_add(Manager
*manager
, sd_netlink_message
*message
, Link
**ret
);
145 void link_drop(Link
*link
);
147 int link_down(Link
*link
, link_netlink_message_handler_t callback
);
149 void link_enter_failed(Link
*link
);
150 int link_initialized(Link
*link
, sd_device
*device
);
152 void link_set_state(Link
*link
, LinkState state
);
153 void link_check_ready(Link
*link
);
155 void link_update_operstate(Link
*link
, bool also_update_bond_master
);
156 int link_update(Link
*link
, sd_netlink_message
*message
);
158 void link_dirty(Link
*link
);
159 void link_clean(Link
*link
);
160 int link_save(Link
*link
);
162 int link_carrier_reset(Link
*link
);
163 bool link_has_carrier(Link
*link
);
165 int link_ipv6ll_gained(Link
*link
, const struct in6_addr
*address
);
167 int link_set_mtu(Link
*link
, uint32_t mtu
);
169 int ipv4ll_configure(Link
*link
);
170 bool link_ipv4ll_enabled(Link
*link
, AddressFamilyBoolean mask
);
172 void dhcp4_release_old_lease(Link
*link
);
173 int dhcp4_configure(Link
*link
);
174 int dhcp4_set_client_identifier(Link
*link
);
175 int dhcp4_set_promote_secondaries(Link
*link
);
176 int dhcp6_request_prefix_delegation(Link
*link
);
177 int dhcp6_configure(Link
*link
);
178 int dhcp6_request_address(Link
*link
, int ir
);
179 int dhcp6_lease_pd_prefix_lost(sd_dhcp6_client
*client
, Link
* link
);
181 int link_stop_clients(Link
*link
, bool may_keep_dhcp
);
183 const char* link_state_to_string(LinkState s
) _const_
;
184 LinkState
link_state_from_string(const char *s
) _pure_
;
186 extern const sd_bus_vtable link_vtable
[];
188 int link_node_enumerator(sd_bus
*bus
, const char *path
, void *userdata
, char ***nodes
, sd_bus_error
*error
);
189 int link_object_find(sd_bus
*bus
, const char *path
, const char *interface
, void *userdata
, void **found
, sd_bus_error
*error
);
190 int link_send_changed(Link
*link
, const char *property
, ...) _sentinel_
;
192 uint32_t link_get_vrf_table(Link
*link
);
193 uint32_t link_get_dhcp_route_table(Link
*link
);
194 uint32_t link_get_ipv6_accept_ra_route_table(Link
*link
);
195 int link_request_set_routes(Link
*link
);
197 int link_sysctl_ipv6_enabled(Link
*link
);
199 #define ADDRESS_FMT_VAL(address) \
200 be32toh((address).s_addr) >> 24, \
201 (be32toh((address).s_addr) >> 16) & 0xFFu, \
202 (be32toh((address).s_addr) >> 8) & 0xFFu, \
203 be32toh((address).s_addr) & 0xFFu