1 /* SPDX-License-Identifier: LGPL-2.1+ */
8 #include "conf-parser.h"
9 #include "dhcp-identifier.h"
11 #include "netdev/bridge.h"
12 #include "netdev/netdev.h"
13 #include "networkd-address-label.h"
14 #include "networkd-address.h"
15 #include "networkd-brvlan.h"
16 #include "networkd-fdb.h"
17 #include "networkd-ipv6-proxy-ndp.h"
18 #include "networkd-lldp-rx.h"
19 #include "networkd-lldp-tx.h"
20 #include "networkd-neighbor.h"
21 #include "networkd-radv.h"
22 #include "networkd-route.h"
23 #include "networkd-routing-policy-rule.h"
24 #include "networkd-util.h"
25 #include "ordered-set.h"
26 #include "resolve-util.h"
28 #define DHCP_ROUTE_METRIC 1024
29 #define IPV4LL_ROUTE_METRIC 2048
31 #define BRIDGE_VLAN_BITMAP_MAX 4096
32 #define BRIDGE_VLAN_BITMAP_LEN (BRIDGE_VLAN_BITMAP_MAX / 32)
34 typedef enum DHCPClientIdentifier
{
37 /* The following option may not be good for RFC regarding DHCP (3315 and 4361).
38 * But some setups require this. E.g., Sky Broadband, the second largest provider in the UK
39 * requires the client id to be set to a custom string, reported at
40 * https://github.com/systemd/systemd/issues/7828 */
41 DHCP_CLIENT_ID_DUID_ONLY
,
43 _DHCP_CLIENT_ID_INVALID
= -1,
44 } DHCPClientIdentifier
;
46 typedef enum IPv6PrivacyExtensions
{
47 /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
48 IPV6_PRIVACY_EXTENSIONS_NO
,
49 IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC
,
50 IPV6_PRIVACY_EXTENSIONS_YES
, /* aka prefer-temporary */
51 _IPV6_PRIVACY_EXTENSIONS_MAX
,
52 _IPV6_PRIVACY_EXTENSIONS_INVALID
= -1,
53 } IPv6PrivacyExtensions
;
55 typedef enum DHCPUseDomains
{
58 DHCP_USE_DOMAINS_ROUTE
,
59 _DHCP_USE_DOMAINS_MAX
,
60 _DHCP_USE_DOMAINS_INVALID
= -1,
64 /* Value of Type in [DHCP] section */
68 uint8_t raw_data
[MAX_DUID_LEN
];
72 typedef enum RADVPrefixDelegation
{
73 RADV_PREFIX_DELEGATION_NONE
,
74 RADV_PREFIX_DELEGATION_STATIC
,
75 RADV_PREFIX_DELEGATION_DHCP6
,
76 RADV_PREFIX_DELEGATION_BOTH
,
77 _RADV_PREFIX_DELEGATION_MAX
,
78 _RADV_PREFIX_DELEGATION_INVALID
= -1,
79 } RADVPrefixDelegation
;
81 typedef struct Manager Manager
;
96 LIST_HEAD(Condition
, conditions
);
103 Hashmap
*stacked_netdevs
;
107 Hashmap
*stacked_netdev_names
;
109 /* DHCP Client Support */
110 AddressFamilyBoolean dhcp
;
111 DHCPClientIdentifier dhcp_client_identifier
;
112 char *dhcp_vendor_class_identifier
;
113 char **dhcp_user_class
;
115 uint64_t dhcp_max_attempts
;
116 unsigned dhcp_route_metric
;
117 uint32_t dhcp_route_table
;
118 uint16_t dhcp_client_port
;
120 bool dhcp_send_hostname
;
126 bool dhcp_use_routes
;
127 bool dhcp_use_timezone
;
129 bool dhcp_use_hostname
;
130 bool dhcp_route_table_set
;
131 bool dhcp_send_release
;
132 DHCPUseDomains dhcp_use_domains
;
133 Set
*dhcp_black_listed_ip
;
135 /* DHCP Server Support */
137 bool dhcp_server_emit_dns
;
138 struct in_addr
*dhcp_server_dns
;
139 unsigned n_dhcp_server_dns
;
140 bool dhcp_server_emit_ntp
;
141 struct in_addr
*dhcp_server_ntp
;
142 unsigned n_dhcp_server_ntp
;
143 bool dhcp_server_emit_router
;
144 bool dhcp_server_emit_timezone
;
145 char *dhcp_server_timezone
;
146 usec_t dhcp_server_default_lease_time_usec
, dhcp_server_max_lease_time_usec
;
147 uint32_t dhcp_server_pool_offset
;
148 uint32_t dhcp_server_pool_size
;
151 AddressFamilyBoolean link_local
;
154 /* IPv6 prefix delegation support */
155 RADVPrefixDelegation router_prefix_delegation
;
156 usec_t router_lifetime_usec
;
157 uint8_t router_preference
;
159 bool router_other_information
;
160 bool router_emit_dns
;
161 bool router_emit_domains
;
162 usec_t router_dns_lifetime_usec
;
163 struct in6_addr
*router_dns
;
164 unsigned n_router_dns
;
165 OrderedSet
*router_search_domains
;
166 bool dhcp6_force_pd_other_information
; /* Start DHCPv6 PD also when 'O'
167 RA flag is set, see RFC 7084,
174 int allow_port_to_be_root
;
177 int multicast_to_unicast
;
178 int neighbor_suppression
;
180 int bridge_proxy_arp
;
181 int bridge_proxy_arp_wifi
;
184 MulticastRouter multicast_router
;
188 uint32_t br_vid_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
189 uint32_t br_untagged_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
193 unsigned can_sample_point
;
194 usec_t can_restart_us
;
195 int can_triple_sampling
;
197 AddressFamilyBoolean ip_forward
;
201 int ipv6_dad_transmits
;
207 bool ipv6_accept_ra_use_dns
;
208 bool ipv6_accept_ra_use_autonomous_prefix
;
209 bool ipv6_accept_ra_use_onlink_prefix
;
212 DHCPUseDomains ipv6_accept_ra_use_domains
;
213 uint32_t ipv6_accept_ra_route_table
;
214 bool ipv6_accept_ra_route_table_set
;
216 union in_addr_union ipv6_token
;
217 IPv6PrivacyExtensions ipv6_privacy_extensions
;
219 struct ether_addr
*mac
;
225 bool configure_without_carrier
;
226 bool ignore_carrier_loss
;
232 bool required_for_online
; /* Is this network required to be considered online? */
233 LinkOperationalState required_operstate_for_online
;
235 LLDPMode lldp_mode
; /* LLDP reception */
236 LLDPEmit lldp_emit
; /* LLDP transmission */
238 LIST_HEAD(Address
, static_addresses
);
239 LIST_HEAD(Route
, static_routes
);
240 LIST_HEAD(FdbEntry
, static_fdb_entries
);
241 LIST_HEAD(IPv6ProxyNDPAddress
, ipv6_proxy_ndp_addresses
);
242 LIST_HEAD(Neighbor
, neighbors
);
243 LIST_HEAD(AddressLabel
, address_labels
);
244 LIST_HEAD(Prefix
, static_prefixes
);
245 LIST_HEAD(RoutingPolicyRule
, rules
);
247 unsigned n_static_addresses
;
248 unsigned n_static_routes
;
249 unsigned n_static_fdb_entries
;
250 unsigned n_ipv6_proxy_ndp_addresses
;
251 unsigned n_neighbors
;
252 unsigned n_address_labels
;
253 unsigned n_static_prefixes
;
256 Hashmap
*addresses_by_section
;
257 Hashmap
*routes_by_section
;
258 Hashmap
*fdb_entries_by_section
;
259 Hashmap
*neighbors_by_section
;
260 Hashmap
*address_labels_by_section
;
261 Hashmap
*prefixes_by_section
;
262 Hashmap
*rules_by_section
;
264 /* All kinds of DNS configuration */
265 struct in_addr_data
*dns
;
267 OrderedSet
*search_domains
, *route_domains
;
269 int dns_default_route
;
270 ResolveSupport llmnr
;
272 DnssecMode dnssec_mode
;
273 DnsOverTlsMode dns_over_tls_mode
;
274 Set
*dnssec_negative_trust_anchors
;
280 Network
*network_ref(Network
*network
);
281 Network
*network_unref(Network
*network
);
282 DEFINE_TRIVIAL_CLEANUP_FUNC(Network
*, network_unref
);
284 int network_load(Manager
*manager
);
285 int network_load_one(Manager
*manager
, const char *filename
);
286 int network_verify(Network
*network
);
288 int network_get_by_name(Manager
*manager
, const char *name
, Network
**ret
);
289 int network_get(Manager
*manager
, sd_device
*device
, const char *ifname
, const struct ether_addr
*mac
, Network
**ret
);
290 int network_apply(Network
*network
, Link
*link
);
291 void network_apply_anonymize_if_set(Network
*network
);
293 bool network_has_static_ipv6_addresses(Network
*network
);
295 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev
);
296 CONFIG_PARSER_PROTOTYPE(config_parse_domains
);
297 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel
);
298 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp
);
299 CONFIG_PARSER_PROTOTYPE(config_parse_dns
);
300 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_client_identifier
);
301 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token
);
302 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions
);
303 CONFIG_PARSER_PROTOTYPE(config_parse_hostname
);
304 CONFIG_PARSER_PROTOTYPE(config_parse_timezone
);
305 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_dns
);
306 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_black_listed_ip_address
);
307 CONFIG_PARSER_PROTOTYPE(config_parse_radv_dns
);
308 CONFIG_PARSER_PROTOTYPE(config_parse_radv_search_domains
);
309 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_ntp
);
310 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors
);
311 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_domains
);
312 CONFIG_PARSER_PROTOTYPE(config_parse_section_route_table
);
313 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_user_class
);
314 CONFIG_PARSER_PROTOTYPE(config_parse_ntp
);
315 CONFIG_PARSER_PROTOTYPE(config_parse_iaid
);
316 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online
);
317 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_max_attempts
);
318 /* Legacy IPv4LL support */
319 CONFIG_PARSER_PROTOTYPE(config_parse_ipv4ll
);
321 const struct ConfigPerfItem
* network_network_gperf_lookup(const char *key
, GPERF_LEN_TYPE length
);
323 extern const sd_bus_vtable network_vtable
[];
325 int network_node_enumerator(sd_bus
*bus
, const char *path
, void *userdata
, char ***nodes
, sd_bus_error
*error
);
326 int network_object_find(sd_bus
*bus
, const char *path
, const char *interface
, void *userdata
, void **found
, sd_bus_error
*error
);
328 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i
) _const_
;
329 IPv6PrivacyExtensions
ipv6_privacy_extensions_from_string(const char *s
) _pure_
;
331 const char* dhcp_use_domains_to_string(DHCPUseDomains p
) _const_
;
332 DHCPUseDomains
dhcp_use_domains_from_string(const char *s
) _pure_
;
334 const char* radv_prefix_delegation_to_string(RADVPrefixDelegation i
) _const_
;
335 RADVPrefixDelegation
radv_prefix_delegation_from_string(const char *s
) _pure_
;