1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 This file is part of systemd.
7 Copyright 2013 Tom Gundersen <teg@jklm.no>
13 #include "condition.h"
14 #include "conf-parser.h"
15 #include "dhcp-identifier.h"
17 #include "netdev/netdev.h"
18 #include "networkd-address-label.h"
19 #include "networkd-address.h"
20 #include "networkd-brvlan.h"
21 #include "networkd-fdb.h"
22 #include "networkd-ipv6-proxy-ndp.h"
23 #include "networkd-lldp-tx.h"
24 #include "networkd-radv.h"
25 #include "networkd-route.h"
26 #include "networkd-routing-policy-rule.h"
27 #include "networkd-util.h"
28 #include "resolve-util.h"
30 #define DHCP_ROUTE_METRIC 1024
31 #define IPV4LL_ROUTE_METRIC 2048
33 #define BRIDGE_VLAN_BITMAP_MAX 4096
34 #define BRIDGE_VLAN_BITMAP_LEN (BRIDGE_VLAN_BITMAP_MAX / 32)
36 typedef enum DHCPClientIdentifier
{
39 /* The following option may not be good for RFC regarding DHCP (3315 and 4361).
40 * But some setups require this. E.g., Sky Broadband, the second largest provider in the UK
41 * requires the client id to be set to a custom string, reported at
42 * https://github.com/systemd/systemd/issues/7828 */
43 DHCP_CLIENT_ID_DUID_ONLY
,
45 _DHCP_CLIENT_ID_INVALID
= -1,
46 } DHCPClientIdentifier
;
48 typedef enum IPv6PrivacyExtensions
{
49 /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
50 IPV6_PRIVACY_EXTENSIONS_NO
,
51 IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC
,
52 IPV6_PRIVACY_EXTENSIONS_YES
, /* aka prefer-temporary */
53 _IPV6_PRIVACY_EXTENSIONS_MAX
,
54 _IPV6_PRIVACY_EXTENSIONS_INVALID
= -1,
55 } IPv6PrivacyExtensions
;
57 typedef enum DHCPUseDomains
{
60 DHCP_USE_DOMAINS_ROUTE
,
61 _DHCP_USE_DOMAINS_MAX
,
62 _DHCP_USE_DOMAINS_INVALID
= -1,
65 typedef enum LLDPMode
{
68 LLDP_MODE_ROUTERS_ONLY
= 2,
70 _LLDP_MODE_INVALID
= -1,
74 /* Value of Type in [DHCP] section */
78 uint8_t raw_data
[MAX_DUID_LEN
];
81 typedef enum RADVPrefixDelegation
{
82 RADV_PREFIX_DELEGATION_NONE
,
83 RADV_PREFIX_DELEGATION_STATIC
,
84 RADV_PREFIX_DELEGATION_DHCP6
,
85 RADV_PREFIX_DELEGATION_BOTH
,
86 } RADVPrefixDelegation
;
88 typedef struct NetworkConfigSection
{
91 } NetworkConfigSection
;
93 int network_config_section_new(const char *filename
, unsigned line
, NetworkConfigSection
**s
);
94 void network_config_section_free(NetworkConfigSection
*network
);
96 DEFINE_TRIVIAL_CLEANUP_FUNC(NetworkConfigSection
*, network_config_section_free
);
98 typedef struct Manager Manager
;
112 Condition
*match_host
;
113 Condition
*match_virt
;
114 Condition
*match_kernel_cmdline
;
115 Condition
*match_kernel_version
;
116 Condition
*match_arch
;
123 Hashmap
*stacked_netdevs
;
125 /* DHCP Client Support */
126 AddressFamilyBoolean dhcp
;
127 DHCPClientIdentifier dhcp_client_identifier
;
128 char *dhcp_vendor_class_identifier
;
129 char **dhcp_user_class
;
131 unsigned dhcp_route_metric
;
132 uint32_t dhcp_route_table
;
133 uint16_t dhcp_client_port
;
135 bool dhcp_send_hostname
;
141 bool dhcp_use_routes
;
142 bool dhcp_use_timezone
;
144 bool dhcp_use_hostname
;
145 bool dhcp_route_table_set
;
146 DHCPUseDomains dhcp_use_domains
;
148 /* DHCP Server Support */
150 bool dhcp_server_emit_dns
;
151 struct in_addr
*dhcp_server_dns
;
152 unsigned n_dhcp_server_dns
;
153 bool dhcp_server_emit_ntp
;
154 struct in_addr
*dhcp_server_ntp
;
155 unsigned n_dhcp_server_ntp
;
156 bool dhcp_server_emit_router
;
157 bool dhcp_server_emit_timezone
;
158 char *dhcp_server_timezone
;
159 usec_t dhcp_server_default_lease_time_usec
, dhcp_server_max_lease_time_usec
;
160 uint32_t dhcp_server_pool_offset
;
161 uint32_t dhcp_server_pool_size
;
164 AddressFamilyBoolean link_local
;
167 /* IPv6 prefix delegation support */
168 RADVPrefixDelegation router_prefix_delegation
;
169 usec_t router_lifetime_usec
;
170 uint8_t router_preference
;
172 bool router_other_information
;
173 bool router_emit_dns
;
174 bool router_emit_domains
;
175 usec_t router_dns_lifetime_usec
;
176 struct in6_addr
*router_dns
;
177 unsigned n_router_dns
;
178 char **router_search_domains
;
184 int allow_port_to_be_root
;
191 uint32_t br_vid_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
192 uint32_t br_untagged_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
194 AddressFamilyBoolean ip_forward
;
198 int ipv6_dad_transmits
;
204 bool ipv6_accept_ra_use_dns
;
207 DHCPUseDomains ipv6_accept_ra_use_domains
;
208 uint32_t ipv6_accept_ra_route_table
;
210 union in_addr_union ipv6_token
;
211 IPv6PrivacyExtensions ipv6_privacy_extensions
;
213 struct ether_addr
*mac
;
217 bool configure_without_carrier
;
221 bool required_for_online
; /* Is this network required to be considered online? */
223 LLDPMode lldp_mode
; /* LLDP reception */
224 LLDPEmit lldp_emit
; /* LLDP transmission */
226 LIST_HEAD(Address
, static_addresses
);
227 LIST_HEAD(Route
, static_routes
);
228 LIST_HEAD(FdbEntry
, static_fdb_entries
);
229 LIST_HEAD(IPv6ProxyNDPAddress
, ipv6_proxy_ndp_addresses
);
230 LIST_HEAD(AddressLabel
, address_labels
);
231 LIST_HEAD(Prefix
, static_prefixes
);
232 LIST_HEAD(RoutingPolicyRule
, rules
);
234 unsigned n_static_addresses
;
235 unsigned n_static_routes
;
236 unsigned n_static_fdb_entries
;
237 unsigned n_ipv6_proxy_ndp_addresses
;
238 unsigned n_address_labels
;
239 unsigned n_static_prefixes
;
242 Hashmap
*addresses_by_section
;
243 Hashmap
*routes_by_section
;
244 Hashmap
*fdb_entries_by_section
;
245 Hashmap
*address_labels_by_section
;
246 Hashmap
*prefixes_by_section
;
247 Hashmap
*rules_by_section
;
249 struct in_addr_data
*dns
;
252 char **search_domains
, **route_domains
, **ntp
, **bind_carrier
;
254 ResolveSupport llmnr
;
256 DnssecMode dnssec_mode
;
257 Set
*dnssec_negative_trust_anchors
;
259 LIST_FIELDS(Network
, networks
);
262 void network_free(Network
*network
);
264 DEFINE_TRIVIAL_CLEANUP_FUNC(Network
*, network_free
);
266 int network_load(Manager
*manager
);
268 int network_get_by_name(Manager
*manager
, const char *name
, Network
**ret
);
269 int network_get(Manager
*manager
, struct udev_device
*device
, const char *ifname
, const struct ether_addr
*mac
, Network
**ret
);
270 int network_apply(Network
*network
, Link
*link
);
271 void network_apply_anonymize_if_set(Network
*network
);
273 bool network_has_static_ipv6_addresses(Network
*network
);
275 CONFIG_PARSER_PROTOTYPE(config_parse_netdev
);
276 CONFIG_PARSER_PROTOTYPE(config_parse_domains
);
277 CONFIG_PARSER_PROTOTYPE(config_parse_tunnel
);
278 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp
);
279 CONFIG_PARSER_PROTOTYPE(config_parse_dns
);
280 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_client_identifier
);
281 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6token
);
282 CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_privacy_extensions
);
283 CONFIG_PARSER_PROTOTYPE(config_parse_hostname
);
284 CONFIG_PARSER_PROTOTYPE(config_parse_timezone
);
285 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_dns
);
286 CONFIG_PARSER_PROTOTYPE(config_parse_radv_dns
);
287 CONFIG_PARSER_PROTOTYPE(config_parse_radv_search_domains
);
288 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_ntp
);
289 CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors
);
290 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_domains
);
291 CONFIG_PARSER_PROTOTYPE(config_parse_lldp_mode
);
292 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_route_table
);
293 CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_user_class
);
294 CONFIG_PARSER_PROTOTYPE(config_parse_ntp
);
295 /* Legacy IPv4LL support */
296 CONFIG_PARSER_PROTOTYPE(config_parse_ipv4ll
);
298 const struct ConfigPerfItem
* network_network_gperf_lookup(const char *key
, GPERF_LEN_TYPE length
);
300 extern const sd_bus_vtable network_vtable
[];
302 int network_node_enumerator(sd_bus
*bus
, const char *path
, void *userdata
, char ***nodes
, sd_bus_error
*error
);
303 int network_object_find(sd_bus
*bus
, const char *path
, const char *interface
, void *userdata
, void **found
, sd_bus_error
*error
);
305 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i
) _const_
;
306 IPv6PrivacyExtensions
ipv6_privacy_extensions_from_string(const char *s
) _pure_
;
308 const char* dhcp_use_domains_to_string(DHCPUseDomains p
) _const_
;
309 DHCPUseDomains
dhcp_use_domains_from_string(const char *s
) _pure_
;
311 const char* lldp_mode_to_string(LLDPMode m
) _const_
;
312 LLDPMode
lldp_mode_from_string(const char *s
) _pure_
;