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 enum LinkIPv6AddressGenMode
{
39 LINK_IPV6_ADDRESSS_GEN_MODE_EUI64
= IN6_ADDR_GEN_MODE_EUI64
,
40 LINK_IPV6_ADDRESSS_GEN_MODE_NONE
= IN6_ADDR_GEN_MODE_NONE
,
41 LINK_IPV6_ADDRESSS_GEN_MODE_STABLE_PRIVACY
= IN6_ADDR_GEN_MODE_STABLE_PRIVACY
,
42 LINK_IPV6_ADDRESSS_GEN_MODE_RANDOM
= IN6_ADDR_GEN_MODE_RANDOM
,
43 _LINK_IPV6_ADDRESS_GEN_MODE_MAX
,
44 _LINK_IPV6_ADDRESS_GEN_MODE_INVALID
= -1
45 } LinkIPv6AddressGenMode
;
47 typedef struct Manager Manager
;
48 typedef struct Network Network
;
49 typedef struct Address Address
;
50 typedef struct DUID DUID
;
60 char **alternative_names
;
62 unsigned short iftype
;
64 struct ether_addr mac
;
65 struct ether_addr permanent_mac
;
66 struct in6_addr ipv6ll_address
;
72 enum nl80211_iftype wlan_iftype
;
74 struct ether_addr bssid
;
77 uint8_t kernel_operstate
;
82 LinkOperationalState operstate
;
83 LinkCarrierState carrier_state
;
84 LinkAddressState address_state
;
86 unsigned address_messages
;
87 unsigned address_label_messages
;
88 unsigned neighbor_messages
;
89 unsigned route_messages
;
90 unsigned nexthop_messages
;
91 unsigned routing_policy_rule_messages
;
92 unsigned routing_policy_rule_remove_messages
;
97 Set
*addresses_foreign
;
99 Set
*neighbors_foreign
;
103 Set
*nexthops_foreign
;
105 sd_dhcp_client
*dhcp_client
;
106 sd_dhcp_lease
*dhcp_lease
, *dhcp_lease_old
;
109 uint32_t original_mtu
;
110 unsigned dhcp4_messages
;
111 bool dhcp4_route_failed
:1;
112 bool dhcp4_route_retrying
:1;
113 bool dhcp4_configured
:1;
114 bool dhcp6_configured
:1;
116 unsigned ndisc_messages
;
117 bool ndisc_configured
;
120 bool ipv4ll_address
:1;
122 bool addresses_configured
:1;
123 bool addresses_ready
:1;
124 bool neighbors_configured
:1;
125 bool static_routes_configured
:1;
126 bool static_routes_ready
:1;
127 bool static_nexthops_configured
:1;
128 bool routing_policy_rules_configured
:1;
129 bool tc_configured
:1;
131 bool setting_genmode
:1;
134 LIST_HEAD(Address
, pool_addresses
);
136 sd_dhcp_server
*dhcp_server
;
144 sd_dhcp6_client
*dhcp6_client
;
146 /* This is about LLDP reception */
150 /* This is about LLDP transmission */
151 unsigned lldp_tx_fast
; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
152 sd_event_source
*lldp_emit_event_source
;
154 Hashmap
*bound_by_links
;
155 Hashmap
*bound_to_links
;
158 /* For speed meter */
159 struct rtnl_link_stats64 stats_old
, stats_new
;
162 /* All kinds of DNS configuration the user configured via D-Bus */
163 struct in_addr_data
*dns
;
165 OrderedSet
*search_domains
, *route_domains
;
167 int dns_default_route
;
168 ResolveSupport llmnr
;
170 DnssecMode dnssec_mode
;
171 DnsOverTlsMode dns_over_tls_mode
;
172 Set
*dnssec_negative_trust_anchors
;
174 /* Similar, but NTP server configuration */
178 typedef int (*link_netlink_message_handler_t
)(sd_netlink
*, sd_netlink_message
*, Link
*);
180 DUID
*link_get_duid(Link
*link
);
181 int get_product_uuid_handler(sd_bus_message
*m
, void *userdata
, sd_bus_error
*ret_error
);
183 void link_ntp_settings_clear(Link
*link
);
184 void link_dns_settings_clear(Link
*link
);
185 Link
*link_unref(Link
*link
);
186 Link
*link_ref(Link
*link
);
187 DEFINE_TRIVIAL_CLEANUP_FUNC(Link
*, link_unref
);
188 DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback
, Link
, link_unref
);
190 int link_get(Manager
*m
, int ifindex
, Link
**ret
);
191 int link_add(Manager
*manager
, sd_netlink_message
*message
, Link
**ret
);
192 void link_drop(Link
*link
);
194 int link_down(Link
*link
, link_netlink_message_handler_t callback
);
196 void link_enter_failed(Link
*link
);
197 int link_initialized(Link
*link
, sd_device
*device
);
199 void link_set_state(Link
*link
, LinkState state
);
200 void link_check_ready(Link
*link
);
202 void link_update_operstate(Link
*link
, bool also_update_bond_master
);
203 int link_update(Link
*link
, sd_netlink_message
*message
);
205 void link_dirty(Link
*link
);
206 void link_clean(Link
*link
);
207 int link_save(Link
*link
);
209 int link_carrier_reset(Link
*link
);
210 bool link_has_carrier(Link
*link
);
212 int link_ipv6ll_gained(Link
*link
, const struct in6_addr
*address
);
214 int link_set_mtu(Link
*link
, uint32_t mtu
);
216 bool link_ipv4ll_enabled(Link
*link
, AddressFamily mask
);
218 int link_stop_clients(Link
*link
, bool may_keep_dhcp
);
220 const char* link_state_to_string(LinkState s
) _const_
;
221 LinkState
link_state_from_string(const char *s
) _pure_
;
223 const char* link_ipv6_address_gen_mode_to_string(LinkIPv6AddressGenMode s
) _const_
;
224 LinkIPv6AddressGenMode
link_ipv6_address_gen_mode_from_string(const char *s
) _pure_
;
226 uint32_t link_get_vrf_table(Link
*link
);
227 uint32_t link_get_dhcp_route_table(Link
*link
);
228 uint32_t link_get_ipv6_accept_ra_route_table(Link
*link
);
229 int link_request_set_routes(Link
*link
);
230 int link_request_set_nexthop(Link
*link
);
232 int link_reconfigure(Link
*link
, bool force
);
233 int address_handler(sd_netlink
*rtnl
, sd_netlink_message
*m
, Link
*link
);
235 CONFIG_PARSER_PROTOTYPE(config_parse_link_ipv6_address_gen_mode
);
237 int log_link_message_full_errno(Link
*link
, sd_netlink_message
*m
, int level
, int err
, const char *msg
);
238 #define log_link_message_error_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_ERR, err, msg)
239 #define log_link_message_warning_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_WARNING, err, msg)
240 #define log_link_message_notice_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_NOTICE, err, msg)
241 #define log_link_message_info_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_INFO, err, msg)
242 #define log_link_message_debug_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_DEBUG, err, msg)
244 #define ADDRESS_FMT_VAL(address) \
245 be32toh((address).s_addr) >> 24, \
246 (be32toh((address).s_addr) >> 16) & 0xFFu, \
247 (be32toh((address).s_addr) >> 8) & 0xFFu, \
248 be32toh((address).s_addr) & 0xFFu