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"
21 #include "ordered-set.h"
22 #include "resolve-util.h"
25 typedef enum LinkState
{
26 LINK_STATE_PENDING
, /* udev has not initialized the link */
27 LINK_STATE_INITIALIZED
, /* udev has initialized the link */
28 LINK_STATE_CONFIGURING
, /* configuring addresses, routes, etc. */
29 LINK_STATE_CONFIGURED
, /* everything is configured */
30 LINK_STATE_UNMANAGED
, /* Unmanaged=yes is set */
31 LINK_STATE_FAILED
, /* at least one configuration process failed */
32 LINK_STATE_LINGER
, /* RTM_DELLINK for the link has been received */
34 _LINK_STATE_INVALID
= -1
37 typedef struct Manager Manager
;
38 typedef struct Network Network
;
39 typedef struct Address Address
;
40 typedef struct DUID DUID
;
51 unsigned short iftype
;
53 struct ether_addr mac
;
54 struct in6_addr ipv6ll_address
;
59 uint8_t kernel_operstate
;
64 LinkOperationalState operstate
;
65 LinkCarrierState carrier_state
;
66 LinkAddressState address_state
;
68 unsigned address_messages
;
69 unsigned address_label_messages
;
70 unsigned neighbor_messages
;
71 unsigned route_messages
;
72 unsigned routing_policy_rule_messages
;
73 unsigned routing_policy_rule_remove_messages
;
77 Set
*addresses_foreign
;
81 bool addresses_configured
;
84 sd_dhcp_client
*dhcp_client
;
85 sd_dhcp_lease
*dhcp_lease
, *dhcp_lease_old
;
88 uint32_t original_mtu
;
89 unsigned dhcp4_messages
;
90 bool dhcp4_route_failed
:1;
91 bool dhcp4_route_retrying
:1;
92 bool dhcp4_configured
:1;
93 bool dhcp6_configured
:1;
95 unsigned ndisc_messages
;
96 bool ndisc_configured
;
99 bool ipv4ll_address
:1;
102 bool neighbors_configured
:1;
103 bool static_routes_configured
:1;
104 bool routing_policy_rules_configured
:1;
107 LIST_HEAD(Address
, pool_addresses
);
109 sd_dhcp_server
*dhcp_server
;
117 sd_dhcp6_client
*dhcp6_client
;
119 /* This is about LLDP reception */
123 /* This is about LLDP transmission */
124 unsigned lldp_tx_fast
; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
125 sd_event_source
*lldp_emit_event_source
;
127 Hashmap
*bound_by_links
;
128 Hashmap
*bound_to_links
;
131 /* For speed meter */
132 struct rtnl_link_stats64 stats_old
, stats_new
;
135 int sysctl_ipv6_enabled
;
137 /* All kinds of DNS configuration */
138 struct in_addr_data
*dns
;
140 OrderedSet
*search_domains
, *route_domains
;
142 int dns_default_route
;
143 ResolveSupport llmnr
;
145 DnssecMode dnssec_mode
;
146 DnsOverTlsMode dns_over_tls_mode
;
147 Set
*dnssec_negative_trust_anchors
;
152 typedef int (*link_netlink_message_handler_t
)(sd_netlink
*, sd_netlink_message
*, Link
*);
154 DUID
*link_get_duid(Link
*link
);
155 int get_product_uuid_handler(sd_bus_message
*m
, void *userdata
, sd_bus_error
*ret_error
);
157 void link_ntp_settings_clear(Link
*link
);
158 void link_dns_settings_clear(Link
*link
);
159 Link
*link_unref(Link
*link
);
160 Link
*link_ref(Link
*link
);
161 DEFINE_TRIVIAL_CLEANUP_FUNC(Link
*, link_unref
);
162 DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback
, Link
, link_unref
);
164 int link_get(Manager
*m
, int ifindex
, Link
**ret
);
165 int link_add(Manager
*manager
, sd_netlink_message
*message
, Link
**ret
);
166 void link_drop(Link
*link
);
168 int link_down(Link
*link
, link_netlink_message_handler_t callback
);
170 void link_enter_failed(Link
*link
);
171 int link_initialized(Link
*link
, sd_device
*device
);
173 void link_set_state(Link
*link
, LinkState state
);
174 void link_check_ready(Link
*link
);
176 void link_update_operstate(Link
*link
, bool also_update_bond_master
);
177 int link_update(Link
*link
, sd_netlink_message
*message
);
179 void link_dirty(Link
*link
);
180 void link_clean(Link
*link
);
181 int link_save(Link
*link
);
183 int link_carrier_reset(Link
*link
);
184 bool link_has_carrier(Link
*link
);
186 int link_ipv6ll_gained(Link
*link
, const struct in6_addr
*address
);
188 int link_set_mtu(Link
*link
, uint32_t mtu
);
190 bool link_ipv4ll_enabled(Link
*link
, AddressFamilyBoolean mask
);
192 int link_stop_clients(Link
*link
, bool may_keep_dhcp
);
194 const char* link_state_to_string(LinkState s
) _const_
;
195 LinkState
link_state_from_string(const char *s
) _pure_
;
197 uint32_t link_get_vrf_table(Link
*link
);
198 uint32_t link_get_dhcp_route_table(Link
*link
);
199 uint32_t link_get_ipv6_accept_ra_route_table(Link
*link
);
200 int link_request_set_routes(Link
*link
);
202 int link_sysctl_ipv6_enabled(Link
*link
);
204 #define ADDRESS_FMT_VAL(address) \
205 be32toh((address).s_addr) >> 24, \
206 (be32toh((address).s_addr) >> 16) & 0xFFu, \
207 (be32toh((address).s_addr) >> 8) & 0xFFu, \
208 be32toh((address).s_addr) & 0xFFu