1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
4 #include <linux/nl80211.h>
8 #include "sd-lldp-tx.h"
11 #include "condition.h"
12 #include "conf-parser.h"
13 #include "firewall-util.h"
16 #include "net-condition.h"
18 #include "networkd-address.h"
19 #include "networkd-bridge-vlan.h"
20 #include "networkd-dhcp-common.h"
21 #include "networkd-dhcp4.h"
22 #include "networkd-dhcp6.h"
23 #include "networkd-ipv6ll.h"
24 #include "networkd-lldp-rx.h"
25 #include "networkd-ndisc.h"
26 #include "networkd-radv.h"
27 #include "networkd-sysctl.h"
28 #include "networkd-util.h"
29 #include "ordered-set.h"
30 #include "resolve-util.h"
31 #include "socket-netlink.h"
33 typedef enum KeepConfiguration
{
34 KEEP_CONFIGURATION_NO
= 0,
35 KEEP_CONFIGURATION_DHCP_ON_START
= 1 << 0,
36 KEEP_CONFIGURATION_DHCP_ON_STOP
= 1 << 1,
37 KEEP_CONFIGURATION_DHCP
= KEEP_CONFIGURATION_DHCP_ON_START
| KEEP_CONFIGURATION_DHCP_ON_STOP
,
38 KEEP_CONFIGURATION_STATIC
= 1 << 2,
39 KEEP_CONFIGURATION_YES
= KEEP_CONFIGURATION_DHCP
| KEEP_CONFIGURATION_STATIC
,
40 _KEEP_CONFIGURATION_MAX
,
41 _KEEP_CONFIGURATION_INVALID
= -EINVAL
,
44 typedef enum ActivationPolicy
{
46 ACTIVATION_POLICY_ALWAYS_UP
,
47 ACTIVATION_POLICY_MANUAL
,
48 ACTIVATION_POLICY_ALWAYS_DOWN
,
49 ACTIVATION_POLICY_DOWN
,
50 ACTIVATION_POLICY_BOUND
,
51 _ACTIVATION_POLICY_MAX
,
52 _ACTIVATION_POLICY_INVALID
= -EINVAL
,
55 typedef struct Manager Manager
;
57 typedef struct NetworkDHCPServerEmitAddress
{
59 struct in_addr
*addresses
;
61 } NetworkDHCPServerEmitAddress
;
71 Hashmap
*stats_by_path
;
76 LIST_HEAD(Condition
, conditions
);
78 /* Master or stacked netdevs */
85 Hashmap
*stacked_netdevs
;
90 Hashmap
*stacked_netdev_names
;
93 struct hw_addr_data hw_addr
;
101 int required_for_online
; /* Is this network required to be considered online? */
102 LinkOperationalStateRange required_operstate_for_online
;
103 AddressFamily required_family_for_online
;
104 ActivationPolicy activation_policy
;
107 bool configure_without_carrier
;
108 bool ignore_carrier_loss_set
;
109 usec_t ignore_carrier_loss_usec
; /* timespan */
110 KeepConfiguration keep_configuration
;
112 bool default_route_on_device
;
113 AddressFamily ip_masquerade
;
115 /* DHCP Client Support */
117 struct in_addr dhcp_request_address
;
118 DHCPClientIdentifier dhcp_client_identifier
;
122 char *dhcp_vendor_class_identifier
;
124 char **dhcp_user_class
;
127 uint64_t dhcp_max_attempts
;
128 uint32_t dhcp_route_metric
;
129 bool dhcp_route_metric_set
;
130 uint32_t dhcp_route_table
;
131 bool dhcp_route_table_set
;
132 usec_t dhcp_fallback_lease_lifetime_usec
;
133 uint32_t dhcp_route_mtu
;
134 uint16_t dhcp_client_port
;
136 int dhcp_ip_service_type
;
137 int dhcp_socket_priority
;
138 bool dhcp_socket_priority_set
;
140 bool dhcp_send_hostname
;
141 bool dhcp_send_hostname_set
;
143 int dhcp_ipv6_only_mode
;
144 int dhcp_use_rapid_commit
;
146 bool dhcp_use_dns_set
;
147 bool dhcp_routes_to_dns
;
149 bool dhcp_use_ntp_set
;
150 bool dhcp_routes_to_ntp
;
152 bool dhcp_use_captive_portal
;
154 bool dhcp_use_routes
;
155 int dhcp_use_gateway
;
157 uint32_t dhcp_initial_congestion_window
;
158 uint32_t dhcp_advertised_receive_window
;
159 bool dhcp_use_timezone
;
160 bool dhcp_use_hostname
;
162 bool dhcp_send_release
;
163 bool dhcp_send_decline
;
164 DHCPUseDomains dhcp_use_domains
;
165 bool dhcp_use_domains_set
;
166 Set
*dhcp_deny_listed_ip
;
167 Set
*dhcp_allow_listed_ip
;
168 Set
*dhcp_request_options
;
169 OrderedHashmap
*dhcp_client_send_options
;
170 OrderedHashmap
*dhcp_client_send_vendor_options
;
172 NFTSetContext dhcp_nft_set_context
;
174 /* DHCPv6 Client support */
175 bool dhcp6_use_address
;
176 bool dhcp6_use_pd_prefix
;
177 bool dhcp6_send_hostname
;
178 bool dhcp6_send_hostname_set
;
180 bool dhcp6_use_dns_set
;
181 bool dhcp6_use_hostname
;
183 bool dhcp6_use_ntp_set
;
184 bool dhcp6_use_captive_portal
;
185 bool dhcp6_use_rapid_commit
;
186 DHCPUseDomains dhcp6_use_domains
;
187 bool dhcp6_use_domains_set
;
190 bool dhcp6_iaid_set_explicitly
;
192 uint8_t dhcp6_pd_prefix_length
;
193 struct in6_addr dhcp6_pd_prefix_hint
;
194 char *dhcp6_hostname
;
196 char **dhcp6_user_class
;
197 char **dhcp6_vendor_class
;
198 DHCP6ClientStartMode dhcp6_client_start_mode
;
199 OrderedHashmap
*dhcp6_client_send_options
;
200 OrderedHashmap
*dhcp6_client_send_vendor_options
;
201 Set
*dhcp6_request_options
;
202 char *dhcp6_netlabel
;
203 bool dhcp6_send_release
;
204 NFTSetContext dhcp6_nft_set_context
;
206 /* DHCP Server Support */
208 bool dhcp_server_bind_to_interface
;
209 unsigned char dhcp_server_address_prefixlen
;
210 struct in_addr dhcp_server_address_in_addr
;
211 const Address
*dhcp_server_address
;
212 int dhcp_server_uplink_index
;
213 char *dhcp_server_uplink_name
;
214 struct in_addr dhcp_server_relay_target
;
215 char *dhcp_server_relay_agent_circuit_id
;
216 char *dhcp_server_relay_agent_remote_id
;
217 NetworkDHCPServerEmitAddress dhcp_server_emit
[_SD_DHCP_LEASE_SERVER_TYPE_MAX
];
218 bool dhcp_server_emit_router
;
219 struct in_addr dhcp_server_router
;
220 bool dhcp_server_emit_timezone
;
221 char *dhcp_server_timezone
;
222 usec_t dhcp_server_default_lease_time_usec
, dhcp_server_max_lease_time_usec
;
223 uint32_t dhcp_server_pool_offset
;
224 uint32_t dhcp_server_pool_size
;
225 OrderedHashmap
*dhcp_server_send_options
;
226 OrderedHashmap
*dhcp_server_send_vendor_options
;
227 struct in_addr dhcp_server_boot_server_address
;
228 char *dhcp_server_boot_server_name
;
229 char *dhcp_server_boot_filename
;
230 usec_t dhcp_server_ipv6_only_preferred_usec
;
231 bool dhcp_server_rapid_commit
;
233 /* link-local addressing support */
234 AddressFamily link_local
;
235 IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode
;
236 struct in6_addr ipv6ll_stable_secret
;
237 struct in_addr ipv4ll_start_address
;
240 /* IPv6 RA support */
241 RADVPrefixDelegation router_prefix_delegation
;
242 usec_t router_lifetime_usec
;
243 uint8_t router_preference
;
244 usec_t router_retransmit_usec
;
245 uint8_t router_hop_limit
;
247 bool router_other_information
;
248 bool router_emit_dns
;
249 bool router_emit_domains
;
250 usec_t router_dns_lifetime_usec
;
251 struct in6_addr
*router_dns
;
252 unsigned n_router_dns
;
253 OrderedSet
*router_search_domains
;
254 int router_uplink_index
;
255 char *router_uplink_name
;
256 /* Mobile IPv6 Home Agent */
257 bool router_home_agent_information
;
258 uint16_t router_home_agent_preference
;
259 usec_t home_agent_lifetime_usec
;
261 /* DHCP Prefix Delegation support */
263 bool dhcp_pd_announce
;
265 bool dhcp_pd_manage_temporary_address
;
266 int64_t dhcp_pd_subnet_id
;
267 uint32_t dhcp_pd_route_metric
;
269 int dhcp_pd_uplink_index
;
270 char *dhcp_pd_uplink_name
;
271 char *dhcp_pd_netlabel
;
272 NFTSetContext dhcp_pd_nft_set_context
;
279 int allow_port_to_be_root
;
282 int multicast_to_unicast
;
283 int neighbor_suppression
;
285 int bridge_proxy_arp
;
286 int bridge_proxy_arp_wifi
;
289 MulticastRouter multicast_router
;
292 uint16_t bridge_vlan_pvid
;
293 uint32_t bridge_vlan_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
294 uint32_t bridge_vlan_untagged_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
297 uint32_t can_bitrate
;
298 unsigned can_sample_point
;
299 nsec_t can_time_quanta_ns
;
300 uint32_t can_propagation_segment
;
301 uint32_t can_phase_buffer_segment_1
;
302 uint32_t can_phase_buffer_segment_2
;
303 uint32_t can_sync_jump_width
;
304 uint32_t can_data_bitrate
;
305 unsigned can_data_sample_point
;
306 nsec_t can_data_time_quanta_ns
;
307 uint32_t can_data_propagation_segment
;
308 uint32_t can_data_phase_buffer_segment_1
;
309 uint32_t can_data_phase_buffer_segment_2
;
310 uint32_t can_data_sync_jump_width
;
311 usec_t can_restart_us
;
312 uint32_t can_control_mode_mask
;
313 uint32_t can_control_mode_flags
;
314 uint16_t can_termination
;
315 bool can_termination_set
;
318 IPoIBMode ipoib_mode
;
321 /* sysctl settings */
322 AddressFamily ip_forward
;
323 int ipv4_accept_local
;
324 int ipv4_route_localnet
;
325 int ipv6_dad_transmits
;
326 uint8_t ipv6_hop_limit
;
327 usec_t ipv6_retransmission_time
;
331 IPv6PrivacyExtensions ipv6_privacy_extensions
;
332 IPReversePathFilter ipv4_rp_filter
;
334 Set
*ipv6_proxy_ndp_addresses
;
338 bool ipv6_accept_ra_use_dns
;
339 bool ipv6_accept_ra_use_gateway
;
340 bool ipv6_accept_ra_use_route_prefix
;
341 bool ipv6_accept_ra_use_autonomous_prefix
;
342 bool ipv6_accept_ra_use_onlink_prefix
;
343 bool ipv6_accept_ra_use_mtu
;
344 bool ipv6_accept_ra_use_hop_limit
;
345 bool ipv6_accept_ra_use_retransmission_time
;
346 bool ipv6_accept_ra_use_icmp6_ratelimit
;
347 bool ipv6_accept_ra_quickack
;
348 bool ipv6_accept_ra_use_captive_portal
;
349 bool ipv6_accept_ra_use_pref64
;
352 DHCPUseDomains ipv6_accept_ra_use_domains
;
353 IPv6AcceptRAStartDHCP6Client ipv6_accept_ra_start_dhcp6_client
;
354 uint32_t ipv6_accept_ra_route_table
;
355 bool ipv6_accept_ra_route_table_set
;
356 uint32_t ipv6_accept_ra_route_metric_high
;
357 uint32_t ipv6_accept_ra_route_metric_medium
;
358 uint32_t ipv6_accept_ra_route_metric_low
;
359 bool ipv6_accept_ra_route_metric_set
;
360 Set
*ndisc_deny_listed_router
;
361 Set
*ndisc_allow_listed_router
;
362 Set
*ndisc_deny_listed_prefix
;
363 Set
*ndisc_allow_listed_prefix
;
364 Set
*ndisc_deny_listed_route_prefix
;
365 Set
*ndisc_allow_listed_route_prefix
;
367 char *ndisc_netlabel
;
368 NFTSetContext ndisc_nft_set_context
;
371 LLDPMode lldp_mode
; /* LLDP reception */
372 sd_lldp_multicast_mode_t lldp_multicast_mode
; /* LLDP transmission */
373 char *lldp_mudurl
; /* LLDP MUD URL */
375 OrderedHashmap
*addresses_by_section
;
376 Hashmap
*routes_by_section
;
377 OrderedHashmap
*nexthops_by_section
;
378 Hashmap
*bridge_fdb_entries_by_section
;
379 Hashmap
*bridge_mdb_entries_by_section
;
380 OrderedHashmap
*neighbors_by_section
;
381 Hashmap
*address_labels_by_section
;
382 Hashmap
*prefixes_by_section
;
383 Hashmap
*route_prefixes_by_section
;
384 Hashmap
*pref64_prefixes_by_section
;
385 Hashmap
*rules_by_section
;
386 Hashmap
*dhcp_static_leases_by_section
;
387 Hashmap
*qdiscs_by_section
;
388 Hashmap
*tclasses_by_section
;
389 OrderedHashmap
*sr_iov_by_section
;
391 /* All kinds of DNS configuration */
392 struct in_addr_full
**dns
;
394 OrderedSet
*search_domains
, *route_domains
;
395 int dns_default_route
;
396 ResolveSupport llmnr
;
398 DnssecMode dnssec_mode
;
399 DnsOverTlsMode dns_over_tls_mode
;
400 Set
*dnssec_negative_trust_anchors
;
406 Network
*network_ref(Network
*network
);
407 Network
*network_unref(Network
*network
);
408 DEFINE_TRIVIAL_CLEANUP_FUNC(Network
*, network_unref
);
410 int network_load(Manager
*manager
, OrderedHashmap
**networks
);
411 int network_reload(Manager
*manager
);
412 int network_load_one(Manager
*manager
, OrderedHashmap
**networks
, const char *filename
);
413 int network_verify(Network
*network
);
415 int manager_build_dhcp_pd_subnet_ids(Manager
*manager
);
417 int network_get_by_name(Manager
*manager
, const char *name
, Network
**ret
);
418 void network_apply_anonymize_if_set(Network
*network
);
420 bool network_has_static_ipv6_configurations(Network
*network
);
422 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev
);
423 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel
);
424 CONFIG_PARSER_PROTOTYPE(config_parse_domains
);
425 CONFIG_PARSER_PROTOTYPE(config_parse_dns
);
426 CONFIG_PARSER_PROTOTYPE(config_parse_timezone
);
427 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors
);
428 CONFIG_PARSER_PROTOTYPE(config_parse_ntp
);
429 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online
);
430 CONFIG_PARSER_PROTOTYPE(config_parse_required_family_for_online
);
431 CONFIG_PARSER_PROTOTYPE(config_parse_keep_configuration
);
432 CONFIG_PARSER_PROTOTYPE(config_parse_activation_policy
);
433 CONFIG_PARSER_PROTOTYPE(config_parse_link_group
);
434 CONFIG_PARSER_PROTOTYPE(config_parse_ignore_carrier_loss
);
436 const struct ConfigPerfItem
* network_network_gperf_lookup(const char *key
, GPERF_LEN_TYPE length
);
438 const char* keep_configuration_to_string(KeepConfiguration i
) _const_
;
439 KeepConfiguration
keep_configuration_from_string(const char *s
) _pure_
;
441 const char* activation_policy_to_string(ActivationPolicy i
) _const_
;
442 ActivationPolicy
activation_policy_from_string(const char *s
) _pure_
;