1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 #include <linux/nl80211.h>
9 #include "sd-dhcp-client.h"
10 #include "sd-dhcp-server.h"
11 #include "sd-dhcp6-client.h"
12 #include "sd-ipv4ll.h"
16 #include "sd-netlink.h"
20 #include "network-util.h"
21 #include "networkd-util.h"
22 #include "ordered-set.h"
23 #include "resolve-util.h"
26 typedef enum LinkState
{
27 LINK_STATE_PENDING
, /* udev has not initialized the link */
28 LINK_STATE_INITIALIZED
, /* udev has initialized the link */
29 LINK_STATE_CONFIGURING
, /* configuring addresses, routes, etc. */
30 LINK_STATE_CONFIGURED
, /* everything is configured */
31 LINK_STATE_UNMANAGED
, /* Unmanaged=yes is set */
32 LINK_STATE_FAILED
, /* at least one configuration process failed */
33 LINK_STATE_LINGER
, /* RTM_DELLINK for the link has been received */
35 _LINK_STATE_INVALID
= -1
38 typedef struct Manager Manager
;
39 typedef struct Network Network
;
40 typedef struct Address Address
;
41 typedef struct DUID DUID
;
51 char **alternative_names
;
53 unsigned short iftype
;
55 struct ether_addr mac
;
56 struct ether_addr permanent_mac
;
57 struct in6_addr ipv6ll_address
;
63 enum nl80211_iftype wlan_iftype
;
65 struct ether_addr bssid
;
68 uint8_t kernel_operstate
;
73 LinkOperationalState operstate
;
74 LinkCarrierState carrier_state
;
75 LinkAddressState address_state
;
77 unsigned address_messages
;
78 unsigned address_label_messages
;
79 unsigned neighbor_messages
;
80 unsigned route_messages
;
81 unsigned nexthop_messages
;
82 unsigned routing_policy_rule_messages
;
83 unsigned routing_policy_rule_remove_messages
;
85 unsigned sr_iov_messages
;
89 Set
*addresses_foreign
;
90 Set
*static_addresses
;
92 Set
*neighbors_foreign
;
96 Set
*nexthops_foreign
;
98 sd_dhcp_client
*dhcp_client
;
99 sd_dhcp_lease
*dhcp_lease
;
100 Address
*dhcp_address
, *dhcp_address_old
;
101 Set
*dhcp_routes
, *dhcp_routes_old
;
103 uint32_t original_mtu
;
104 unsigned dhcp4_messages
;
105 unsigned dhcp4_remove_messages
;
106 bool dhcp4_route_failed
:1;
107 bool dhcp4_route_retrying
:1;
108 bool dhcp4_configured
:1;
109 bool dhcp4_address_bind
:1;
112 bool ipv4ll_address_configured
:1;
114 bool addresses_configured
:1;
115 bool addresses_ready
:1;
116 bool neighbors_configured
:1;
117 bool static_routes_configured
:1;
118 bool static_nexthops_configured
:1;
119 bool routing_policy_rules_configured
:1;
120 bool tc_configured
:1;
121 bool sr_iov_configured
:1;
123 bool setting_genmode
:1;
126 LIST_HEAD(Address
, pool_addresses
);
128 sd_dhcp_server
*dhcp_server
;
133 Set
*ndisc_addresses
, *ndisc_addresses_old
;
134 Set
*ndisc_routes
, *ndisc_routes_old
;
135 unsigned ndisc_addresses_messages
;
136 unsigned ndisc_routes_messages
;
137 bool ndisc_addresses_configured
:1;
138 bool ndisc_routes_configured
:1;
142 sd_dhcp6_client
*dhcp6_client
;
143 sd_dhcp6_lease
*dhcp6_lease
;
144 Set
*dhcp6_addresses
, *dhcp6_addresses_old
;
145 Set
*dhcp6_routes
, *dhcp6_routes_old
;
146 Set
*dhcp6_pd_addresses
, *dhcp6_pd_addresses_old
;
147 Set
*dhcp6_pd_routes
, *dhcp6_pd_routes_old
;
148 unsigned dhcp6_address_messages
;
149 unsigned dhcp6_route_messages
;
150 unsigned dhcp6_pd_address_messages
;
151 unsigned dhcp6_pd_route_messages
;
152 bool dhcp6_address_configured
:1;
153 bool dhcp6_route_configured
:1;
154 bool dhcp6_pd_address_configured
:1;
155 bool dhcp6_pd_route_configured
:1;
156 bool dhcp6_pd_prefixes_assigned
:1;
158 /* This is about LLDP reception */
162 /* This is about LLDP transmission */
163 unsigned lldp_tx_fast
; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
164 sd_event_source
*lldp_emit_event_source
;
166 Hashmap
*bound_by_links
;
167 Hashmap
*bound_to_links
;
170 /* For speed meter */
171 struct rtnl_link_stats64 stats_old
, stats_new
;
174 /* All kinds of DNS configuration the user configured via D-Bus */
175 struct in_addr_full
**dns
;
177 OrderedSet
*search_domains
, *route_domains
;
179 int dns_default_route
;
180 ResolveSupport llmnr
;
182 DnssecMode dnssec_mode
;
183 DnsOverTlsMode dns_over_tls_mode
;
184 Set
*dnssec_negative_trust_anchors
;
186 /* Similar, but NTP server configuration */
190 typedef int (*link_netlink_message_handler_t
)(sd_netlink
*, sd_netlink_message
*, Link
*);
192 DUID
*link_get_duid(Link
*link
);
193 int get_product_uuid_handler(sd_bus_message
*m
, void *userdata
, sd_bus_error
*ret_error
);
195 void link_ntp_settings_clear(Link
*link
);
196 void link_dns_settings_clear(Link
*link
);
197 Link
*link_unref(Link
*link
);
198 Link
*link_ref(Link
*link
);
199 DEFINE_TRIVIAL_CLEANUP_FUNC(Link
*, link_unref
);
200 DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback
, Link
, link_unref
);
202 int link_get(Manager
*m
, int ifindex
, Link
**ret
);
203 int link_add(Manager
*manager
, sd_netlink_message
*message
, Link
**ret
);
204 void link_drop(Link
*link
);
206 int link_down(Link
*link
, link_netlink_message_handler_t callback
);
208 void link_enter_failed(Link
*link
);
209 int link_initialized(Link
*link
, sd_device
*device
);
211 void link_set_state(Link
*link
, LinkState state
);
212 void link_check_ready(Link
*link
);
214 void link_update_operstate(Link
*link
, bool also_update_bond_master
);
215 int link_update(Link
*link
, sd_netlink_message
*message
);
217 void link_dirty(Link
*link
);
218 void link_clean(Link
*link
);
219 int link_save(Link
*link
);
220 int link_save_and_clean(Link
*link
);
222 int link_carrier_reset(Link
*link
);
223 bool link_has_carrier(Link
*link
);
225 int link_ipv6ll_gained(Link
*link
, const struct in6_addr
*address
);
227 int link_set_mtu(Link
*link
, uint32_t mtu
);
229 bool link_ipv4ll_enabled(Link
*link
, AddressFamily mask
);
231 int link_stop_clients(Link
*link
, bool may_keep_dhcp
);
233 const char* link_state_to_string(LinkState s
) _const_
;
234 LinkState
link_state_from_string(const char *s
) _pure_
;
236 uint32_t link_get_vrf_table(Link
*link
);
237 uint32_t link_get_dhcp_route_table(Link
*link
);
238 uint32_t link_get_ipv6_accept_ra_route_table(Link
*link
);
239 int link_request_set_routes(Link
*link
);
241 int link_reconfigure(Link
*link
, bool force
);
243 int log_link_message_full_errno(Link
*link
, sd_netlink_message
*m
, int level
, int err
, const char *msg
);
244 #define log_link_message_error_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_ERR, err, msg)
245 #define log_link_message_warning_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_WARNING, err, msg)
246 #define log_link_message_notice_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_NOTICE, err, msg)
247 #define log_link_message_info_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_INFO, err, msg)
248 #define log_link_message_debug_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_DEBUG, err, msg)
250 #define ADDRESS_FMT_VAL(address) \
251 be32toh((address).s_addr) >> 24, \
252 (be32toh((address).s_addr) >> 16) & 0xFFu, \
253 (be32toh((address).s_addr) >> 8) & 0xFFu, \
254 be32toh((address).s_addr) & 0xFFu