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
;
88 Set
*addresses_foreign
;
90 Set
*neighbors_foreign
;
94 Set
*nexthops_foreign
;
96 sd_dhcp_client
*dhcp_client
;
97 sd_dhcp_lease
*dhcp_lease
, *dhcp_lease_old
;
100 uint32_t original_mtu
;
101 unsigned dhcp4_messages
;
102 bool dhcp4_route_failed
:1;
103 bool dhcp4_route_retrying
:1;
104 bool dhcp4_configured
:1;
105 bool dhcp6_configured
:1;
107 unsigned ndisc_messages
;
108 bool ndisc_configured
;
111 bool ipv4ll_address
:1;
113 bool addresses_configured
:1;
114 bool addresses_ready
:1;
115 bool neighbors_configured
:1;
116 bool static_routes_configured
:1;
117 bool static_routes_ready
:1;
118 bool static_nexthops_configured
:1;
119 bool routing_policy_rules_configured
:1;
120 bool tc_configured
:1;
122 bool setting_genmode
:1;
125 LIST_HEAD(Address
, pool_addresses
);
127 sd_dhcp_server
*dhcp_server
;
135 sd_dhcp6_client
*dhcp6_client
;
137 /* This is about LLDP reception */
141 /* This is about LLDP transmission */
142 unsigned lldp_tx_fast
; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
143 sd_event_source
*lldp_emit_event_source
;
145 Hashmap
*bound_by_links
;
146 Hashmap
*bound_to_links
;
149 /* For speed meter */
150 struct rtnl_link_stats64 stats_old
, stats_new
;
153 /* All kinds of DNS configuration the user configured via D-Bus */
154 struct in_addr_data
*dns
;
156 OrderedSet
*search_domains
, *route_domains
;
158 int dns_default_route
;
159 ResolveSupport llmnr
;
161 DnssecMode dnssec_mode
;
162 DnsOverTlsMode dns_over_tls_mode
;
163 Set
*dnssec_negative_trust_anchors
;
165 /* Similar, but NTP server configuration */
169 typedef int (*link_netlink_message_handler_t
)(sd_netlink
*, sd_netlink_message
*, Link
*);
171 DUID
*link_get_duid(Link
*link
);
172 int get_product_uuid_handler(sd_bus_message
*m
, void *userdata
, sd_bus_error
*ret_error
);
174 void link_ntp_settings_clear(Link
*link
);
175 void link_dns_settings_clear(Link
*link
);
176 Link
*link_unref(Link
*link
);
177 Link
*link_ref(Link
*link
);
178 DEFINE_TRIVIAL_CLEANUP_FUNC(Link
*, link_unref
);
179 DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback
, Link
, link_unref
);
181 int link_get(Manager
*m
, int ifindex
, Link
**ret
);
182 int link_add(Manager
*manager
, sd_netlink_message
*message
, Link
**ret
);
183 void link_drop(Link
*link
);
185 int link_down(Link
*link
, link_netlink_message_handler_t callback
);
187 void link_enter_failed(Link
*link
);
188 int link_initialized(Link
*link
, sd_device
*device
);
190 void link_set_state(Link
*link
, LinkState state
);
191 void link_check_ready(Link
*link
);
193 void link_update_operstate(Link
*link
, bool also_update_bond_master
);
194 int link_update(Link
*link
, sd_netlink_message
*message
);
196 void link_dirty(Link
*link
);
197 void link_clean(Link
*link
);
198 int link_save(Link
*link
);
200 int link_carrier_reset(Link
*link
);
201 bool link_has_carrier(Link
*link
);
203 int link_ipv6ll_gained(Link
*link
, const struct in6_addr
*address
);
205 int link_set_mtu(Link
*link
, uint32_t mtu
);
207 bool link_ipv4ll_enabled(Link
*link
, AddressFamily mask
);
209 int link_stop_clients(Link
*link
, bool may_keep_dhcp
);
211 const char* link_state_to_string(LinkState s
) _const_
;
212 LinkState
link_state_from_string(const char *s
) _pure_
;
214 uint32_t link_get_vrf_table(Link
*link
);
215 uint32_t link_get_dhcp_route_table(Link
*link
);
216 uint32_t link_get_ipv6_accept_ra_route_table(Link
*link
);
217 int link_request_set_routes(Link
*link
);
218 int link_request_set_nexthop(Link
*link
);
220 int link_reconfigure(Link
*link
, bool force
);
221 int address_handler(sd_netlink
*rtnl
, sd_netlink_message
*m
, Link
*link
);
223 int log_link_message_full_errno(Link
*link
, sd_netlink_message
*m
, int level
, int err
, const char *msg
);
224 #define log_link_message_error_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_ERR, err, msg)
225 #define log_link_message_warning_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_WARNING, err, msg)
226 #define log_link_message_notice_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_NOTICE, err, msg)
227 #define log_link_message_info_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_INFO, err, msg)
228 #define log_link_message_debug_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_DEBUG, err, msg)
230 #define ADDRESS_FMT_VAL(address) \
231 be32toh((address).s_addr) >> 24, \
232 (be32toh((address).s_addr) >> 16) & 0xFFu, \
233 (be32toh((address).s_addr) >> 8) & 0xFFu, \
234 be32toh((address).s_addr) & 0xFFu