1 /* SPDX-License-Identifier: LGPL-2.1+ */
8 #include "conf-parser.h"
9 #include "dhcp-identifier.h"
11 #include "netdev/netdev.h"
12 #include "networkd-address-label.h"
13 #include "networkd-address.h"
14 #include "networkd-brvlan.h"
15 #include "networkd-fdb.h"
16 #include "networkd-ipv6-proxy-ndp.h"
17 #include "networkd-lldp-tx.h"
18 #include "networkd-neighbor.h"
19 #include "networkd-radv.h"
20 #include "networkd-route.h"
21 #include "networkd-routing-policy-rule.h"
22 #include "networkd-util.h"
23 #include "ordered-set.h"
24 #include "resolve-util.h"
26 #define DHCP_ROUTE_METRIC 1024
27 #define IPV4LL_ROUTE_METRIC 2048
29 #define BRIDGE_VLAN_BITMAP_MAX 4096
30 #define BRIDGE_VLAN_BITMAP_LEN (BRIDGE_VLAN_BITMAP_MAX / 32)
32 typedef enum DHCPClientIdentifier
{
35 /* The following option may not be good for RFC regarding DHCP (3315 and 4361).
36 * But some setups require this. E.g., Sky Broadband, the second largest provider in the UK
37 * requires the client id to be set to a custom string, reported at
38 * https://github.com/systemd/systemd/issues/7828 */
39 DHCP_CLIENT_ID_DUID_ONLY
,
41 _DHCP_CLIENT_ID_INVALID
= -1,
42 } DHCPClientIdentifier
;
44 typedef enum IPv6PrivacyExtensions
{
45 /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
46 IPV6_PRIVACY_EXTENSIONS_NO
,
47 IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC
,
48 IPV6_PRIVACY_EXTENSIONS_YES
, /* aka prefer-temporary */
49 _IPV6_PRIVACY_EXTENSIONS_MAX
,
50 _IPV6_PRIVACY_EXTENSIONS_INVALID
= -1,
51 } IPv6PrivacyExtensions
;
53 typedef enum DHCPUseDomains
{
56 DHCP_USE_DOMAINS_ROUTE
,
57 _DHCP_USE_DOMAINS_MAX
,
58 _DHCP_USE_DOMAINS_INVALID
= -1,
61 typedef enum LLDPMode
{
64 LLDP_MODE_ROUTERS_ONLY
= 2,
66 _LLDP_MODE_INVALID
= -1,
70 /* Value of Type in [DHCP] section */
74 uint8_t raw_data
[MAX_DUID_LEN
];
78 typedef enum RADVPrefixDelegation
{
79 RADV_PREFIX_DELEGATION_NONE
,
80 RADV_PREFIX_DELEGATION_STATIC
,
81 RADV_PREFIX_DELEGATION_DHCP6
,
82 RADV_PREFIX_DELEGATION_BOTH
,
83 _RADV_PREFIX_DELEGATION_MAX
,
84 _RADV_PREFIX_DELEGATION_INVALID
= -1,
85 } RADVPrefixDelegation
;
87 typedef struct Manager Manager
;
102 LIST_HEAD(Condition
, conditions
);
109 Hashmap
*stacked_netdevs
;
113 Hashmap
*stacked_netdev_names
;
115 /* DHCP Client Support */
116 AddressFamilyBoolean dhcp
;
117 DHCPClientIdentifier dhcp_client_identifier
;
118 char *dhcp_vendor_class_identifier
;
119 char **dhcp_user_class
;
121 uint64_t dhcp_max_attempts
;
122 unsigned dhcp_route_metric
;
123 uint32_t dhcp_route_table
;
124 uint16_t dhcp_client_port
;
126 bool dhcp_send_hostname
;
132 bool dhcp_use_routes
;
133 bool dhcp_use_timezone
;
135 bool dhcp_use_hostname
;
136 bool dhcp_route_table_set
;
137 DHCPUseDomains dhcp_use_domains
;
139 /* DHCP Server Support */
141 bool dhcp_server_emit_dns
;
142 struct in_addr
*dhcp_server_dns
;
143 unsigned n_dhcp_server_dns
;
144 bool dhcp_server_emit_ntp
;
145 struct in_addr
*dhcp_server_ntp
;
146 unsigned n_dhcp_server_ntp
;
147 bool dhcp_server_emit_router
;
148 bool dhcp_server_emit_timezone
;
149 char *dhcp_server_timezone
;
150 usec_t dhcp_server_default_lease_time_usec
, dhcp_server_max_lease_time_usec
;
151 uint32_t dhcp_server_pool_offset
;
152 uint32_t dhcp_server_pool_size
;
155 AddressFamilyBoolean link_local
;
158 /* IPv6 prefix delegation support */
159 RADVPrefixDelegation router_prefix_delegation
;
160 usec_t router_lifetime_usec
;
161 uint8_t router_preference
;
163 bool router_other_information
;
164 bool router_emit_dns
;
165 bool router_emit_domains
;
166 usec_t router_dns_lifetime_usec
;
167 struct in6_addr
*router_dns
;
168 unsigned n_router_dns
;
169 OrderedSet
*router_search_domains
;
170 bool dhcp6_force_pd_other_information
; /* Start DHCPv6 PD also when 'O'
171 RA flag is set, see RFC 7084,
178 int allow_port_to_be_root
;
181 int multicast_to_unicast
;
182 int neighbor_suppression
;
184 int bridge_proxy_arp
;
185 int bridge_proxy_arp_wifi
;
191 uint32_t br_vid_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
192 uint32_t br_untagged_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
196 unsigned can_sample_point
;
197 usec_t can_restart_us
;
198 int can_triple_sampling
;
200 AddressFamilyBoolean ip_forward
;
204 int ipv6_dad_transmits
;
210 bool ipv6_accept_ra_use_dns
;
211 bool ipv6_accept_ra_use_autonomous_prefix
;
212 bool ipv6_accept_ra_use_onlink_prefix
;
215 DHCPUseDomains ipv6_accept_ra_use_domains
;
216 uint32_t ipv6_accept_ra_route_table
;
217 bool ipv6_accept_ra_route_table_set
;
219 union in_addr_union ipv6_token
;
220 IPv6PrivacyExtensions ipv6_privacy_extensions
;
222 struct ether_addr
*mac
;
224 bool mtu_is_set
; /* Indicate MTUBytes= is specified. */
229 bool configure_without_carrier
;
230 bool ignore_carrier_loss
;
236 bool required_for_online
; /* Is this network required to be considered online? */
237 LinkOperationalState required_operstate_for_online
;
239 LLDPMode lldp_mode
; /* LLDP reception */
240 LLDPEmit lldp_emit
; /* LLDP transmission */
242 LIST_HEAD(Address
, static_addresses
);
243 LIST_HEAD(Route
, static_routes
);
244 LIST_HEAD(FdbEntry
, static_fdb_entries
);
245 LIST_HEAD(IPv6ProxyNDPAddress
, ipv6_proxy_ndp_addresses
);
246 LIST_HEAD(Neighbor
, neighbors
);
247 LIST_HEAD(AddressLabel
, address_labels
);
248 LIST_HEAD(Prefix
, static_prefixes
);
249 LIST_HEAD(RoutingPolicyRule
, rules
);
251 unsigned n_static_addresses
;
252 unsigned n_static_routes
;
253 unsigned n_static_fdb_entries
;
254 unsigned n_ipv6_proxy_ndp_addresses
;
255 unsigned n_neighbors
;
256 unsigned n_address_labels
;
257 unsigned n_static_prefixes
;
260 Hashmap
*addresses_by_section
;
261 Hashmap
*routes_by_section
;
262 Hashmap
*fdb_entries_by_section
;
263 Hashmap
*neighbors_by_section
;
264 Hashmap
*address_labels_by_section
;
265 Hashmap
*prefixes_by_section
;
266 Hashmap
*rules_by_section
;
268 /* All kinds of DNS configuration */
269 struct in_addr_data
*dns
;
271 OrderedSet
*search_domains
, *route_domains
;
273 int dns_default_route
;
274 ResolveSupport llmnr
;
276 DnssecMode dnssec_mode
;
277 DnsOverTlsMode dns_over_tls_mode
;
278 Set
*dnssec_negative_trust_anchors
;
284 Network
*network_ref(Network
*network
);
285 Network
*network_unref(Network
*network
);
286 DEFINE_TRIVIAL_CLEANUP_FUNC(Network
*, network_unref
);
288 int network_load(Manager
*manager
);
289 int network_load_one(Manager
*manager
, const char *filename
);
290 int network_verify(Network
*network
);
292 int network_get_by_name(Manager
*manager
, const char *name
, Network
**ret
);
293 int network_get(Manager
*manager
, sd_device
*device
, const char *ifname
, const struct ether_addr
*mac
, Network
**ret
);
294 int network_apply(Network
*network
, Link
*link
);
295 void network_apply_anonymize_if_set(Network
*network
);
297 bool network_has_static_ipv6_addresses(Network
*network
);
299 CONFIG_PARSER_PROTOTYPE(config_parse_stacked_netdev
);
300 CONFIG_PARSER_PROTOTYPE(config_parse_domains
);
301 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel
);
302 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp
);
303 CONFIG_PARSER_PROTOTYPE(config_parse_dns
);
304 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_client_identifier
);
305 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token
);
306 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions
);
307 CONFIG_PARSER_PROTOTYPE(config_parse_hostname
);
308 CONFIG_PARSER_PROTOTYPE(config_parse_timezone
);
309 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_dns
);
310 CONFIG_PARSER_PROTOTYPE(config_parse_radv_dns
);
311 CONFIG_PARSER_PROTOTYPE(config_parse_radv_search_domains
);
312 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_ntp
);
313 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors
);
314 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_domains
);
315 CONFIG_PARSER_PROTOTYPE(config_parse_lldp_mode
);
316 CONFIG_PARSER_PROTOTYPE(config_parse_section_route_table
);
317 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_user_class
);
318 CONFIG_PARSER_PROTOTYPE(config_parse_ntp
);
319 CONFIG_PARSER_PROTOTYPE(config_parse_iaid
);
320 CONFIG_PARSER_PROTOTYPE(config_parse_required_for_online
);
321 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_max_attempts
);
322 /* Legacy IPv4LL support */
323 CONFIG_PARSER_PROTOTYPE(config_parse_ipv4ll
);
325 const struct ConfigPerfItem
* network_network_gperf_lookup(const char *key
, GPERF_LEN_TYPE length
);
327 extern const sd_bus_vtable network_vtable
[];
329 int network_node_enumerator(sd_bus
*bus
, const char *path
, void *userdata
, char ***nodes
, sd_bus_error
*error
);
330 int network_object_find(sd_bus
*bus
, const char *path
, const char *interface
, void *userdata
, void **found
, sd_bus_error
*error
);
332 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i
) _const_
;
333 IPv6PrivacyExtensions
ipv6_privacy_extensions_from_string(const char *s
) _pure_
;
335 const char* dhcp_use_domains_to_string(DHCPUseDomains p
) _const_
;
336 DHCPUseDomains
dhcp_use_domains_from_string(const char *s
) _pure_
;
338 const char* lldp_mode_to_string(LLDPMode m
) _const_
;
339 LLDPMode
lldp_mode_from_string(const char *s
) _pure_
;
341 const char* radv_prefix_delegation_to_string(RADVPrefixDelegation i
) _const_
;
342 RADVPrefixDelegation
radv_prefix_delegation_from_string(const char *s
) _pure_
;