1 /* SPDX-License-Identifier: LGPL-2.1+ */
4 #include <netinet/in.h>
5 #include <linux/netdevice.h>
7 #include "alloc-util.h"
8 #include "conf-files.h"
9 #include "conf-parser.h"
10 #include "dns-domain.h"
12 #include "hostname-util.h"
13 #include "in-addr-util.h"
14 #include "network-internal.h"
15 #include "networkd-manager.h"
16 #include "networkd-network.h"
17 #include "parse-util.h"
19 #include "socket-util.h"
20 #include "stat-util.h"
21 #include "string-table.h"
22 #include "string-util.h"
26 /* Let's assume that anything above this number is a user misconfiguration. */
27 #define MAX_NTP_SERVERS 128
29 /* Set defaults following RFC7844 */
30 void network_apply_anonymize_if_set(Network
*network
) {
31 if (!network
->dhcp_anonymize
)
34 SHOULD NOT send the Host Name option */
35 network
->dhcp_send_hostname
= false;
36 /* RFC7844 section 3.:
37 MAY contain the Client Identifier option
39 clients MUST use client identifiers based solely
40 on the link-layer address */
41 /* NOTE: Using MAC, as it does not reveal extra information,
42 * and some servers might not answer if this option is not sent */
43 network
->dhcp_client_identifier
= DHCP_CLIENT_ID_MAC
;
45 SHOULD NOT use the Vendor Class Identifier option */
46 network
->dhcp_vendor_class_identifier
= mfree(network
->dhcp_vendor_class_identifier
);
47 /* RFC7844 section 3.6.:
48 The client intending to protect its privacy SHOULD only request a
49 minimal number of options in the PRL and SHOULD also randomly shuffle
50 the ordering of option codes in the PRL. If this random ordering
51 cannot be implemented, the client MAY order the option codes in the
52 PRL by option code number (lowest to highest).
54 /* NOTE: dhcp_use_mtu is false by default,
55 * though it was not initiallized to any value in network_load_one.
56 * Maybe there should be another var called *send*?
57 * (to use the MTU sent by the server but to do not send
58 * the option in the PRL). */
59 network
->dhcp_use_mtu
= false;
60 /* NOTE: when Anonymize=yes, the PRL route options are sent by default,
61 * but this is needed to use them. */
62 network
->dhcp_use_routes
= true;
63 /* RFC7844 section 3.6.
64 * same comments as previous option */
65 network
->dhcp_use_timezone
= false;
68 static int network_resolve_netdev_one(Network
*network
, const char *name
, NetDevKind kind
, NetDev
**ret_netdev
) {
69 const char *kind_string
;
73 /* For test-networkd-conf, the check must be earlier than the assertions. */
78 assert(network
->manager
);
79 assert(network
->filename
);
82 if (kind
== _NETDEV_KIND_TUNNEL
)
83 kind_string
= "tunnel";
85 kind_string
= netdev_kind_to_string(kind
);
87 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
88 "%s: Invalid NetDev kind of %s, ignoring assignment.",
89 network
->filename
, name
);
92 r
= netdev_get(network
->manager
, name
, &netdev
);
94 return log_error_errno(r
, "%s: %s NetDev could not be found, ignoring assignment.",
95 network
->filename
, name
);
97 if (netdev
->kind
!= kind
&& !(kind
== _NETDEV_KIND_TUNNEL
&&
104 NETDEV_KIND_IP6GRETAP
,
108 NETDEV_KIND_ERSPAN
)))
109 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
110 "%s: NetDev %s is not a %s, ignoring assignment",
111 network
->filename
, name
, kind_string
);
113 *ret_netdev
= netdev_ref(netdev
);
117 static int network_resolve_stacked_netdevs(Network
*network
) {
124 HASHMAP_FOREACH_KEY(kind
, name
, network
->stacked_netdev_names
, i
) {
125 _cleanup_(netdev_unrefp
) NetDev
*netdev
= NULL
;
127 r
= network_resolve_netdev_one(network
, name
, PTR_TO_INT(kind
), &netdev
);
131 r
= hashmap_ensure_allocated(&network
->stacked_netdevs
, &string_hash_ops
);
135 r
= hashmap_put(network
->stacked_netdevs
, netdev
->ifname
, netdev
);
137 return log_error_errno(r
, "%s: Failed to add NetDev '%s' to network: %m",
138 network
->filename
, (const char *) name
);
146 int network_verify(Network
*network
) {
147 Address
*address
, *address_next
;
148 Route
*route
, *route_next
;
149 FdbEntry
*fdb
, *fdb_next
;
150 Neighbor
*neighbor
, *neighbor_next
;
151 AddressLabel
*label
, *label_next
;
152 Prefix
*prefix
, *prefix_next
;
153 RoutingPolicyRule
*rule
, *rule_next
;
156 assert(network
->filename
);
158 if (set_isempty(network
->match_mac
) && strv_isempty(network
->match_path
) &&
159 strv_isempty(network
->match_driver
) && strv_isempty(network
->match_type
) &&
160 strv_isempty(network
->match_name
) && !network
->conditions
)
161 log_warning("%s: No valid settings found in the [Match] section. "
162 "The file will match all interfaces. "
163 "If that is intended, please add Name=* in the [Match] section.",
166 /* skip out early if configuration does not match the environment */
167 if (!condition_test_list(network
->conditions
, NULL
, NULL
, NULL
))
168 return log_debug_errno(SYNTHETIC_ERRNO(EINVAL
),
169 "%s: Conditions in the file do not match the system environment, skipping.",
172 (void) network_resolve_netdev_one(network
, network
->bond_name
, NETDEV_KIND_BOND
, &network
->bond
);
173 (void) network_resolve_netdev_one(network
, network
->bridge_name
, NETDEV_KIND_BRIDGE
, &network
->bridge
);
174 (void) network_resolve_netdev_one(network
, network
->vrf_name
, NETDEV_KIND_VRF
, &network
->vrf
);
175 (void) network_resolve_stacked_netdevs(network
);
177 /* Free unnecessary entries. */
178 network
->bond_name
= mfree(network
->bond_name
);
179 network
->bridge_name
= mfree(network
->bridge_name
);
180 network
->vrf_name
= mfree(network
->vrf_name
);
181 network
->stacked_netdev_names
= hashmap_free_free_key(network
->stacked_netdev_names
);
184 /* Bonding slave does not support addressing. */
185 if (network
->ipv6_accept_ra
> 0) {
186 log_warning("%s: Cannot enable IPv6AcceptRA= when Bond= is specified, disabling IPv6AcceptRA=.",
188 network
->ipv6_accept_ra
= 0;
190 if (network
->link_local
>= 0 && network
->link_local
!= ADDRESS_FAMILY_NO
) {
191 log_warning("%s: Cannot enable LinkLocalAddressing= when Bond= is specified, disabling LinkLocalAddressing=.",
193 network
->link_local
= ADDRESS_FAMILY_NO
;
195 if (network
->dhcp
!= ADDRESS_FAMILY_NO
) {
196 log_warning("%s: Cannot enable DHCP= when Bond= is specified, disabling DHCP=.",
198 network
->dhcp
= ADDRESS_FAMILY_NO
;
200 if (network
->dhcp_server
) {
201 log_warning("%s: Cannot enable DHCPServer= when Bond= is specified, disabling DHCPServer=.",
203 network
->dhcp_server
= false;
205 if (network
->n_static_addresses
> 0) {
206 log_warning("%s: Cannot set addresses when Bond= is specified, ignoring addresses.",
208 while ((address
= network
->static_addresses
))
209 address_free(address
);
211 if (network
->n_static_routes
> 0) {
212 log_warning("%s: Cannot set routes when Bond= is specified, ignoring routes.",
214 while ((route
= network
->static_routes
))
219 if (network
->link_local
< 0)
220 network
->link_local
= network
->bridge
? ADDRESS_FAMILY_NO
: ADDRESS_FAMILY_IPV6
;
222 if (FLAGS_SET(network
->link_local
, ADDRESS_FAMILY_FALLBACK_IPV4
) &&
223 !FLAGS_SET(network
->dhcp
, ADDRESS_FAMILY_IPV4
)) {
224 log_warning("%s: fallback assignment of IPv4 link local address is enabled but DHCPv4 is disabled. "
225 "Disabling the fallback assignment.", network
->filename
);
226 SET_FLAG(network
->link_local
, ADDRESS_FAMILY_FALLBACK_IPV4
, false);
229 if (network
->ipv6_accept_ra
< 0 && network
->bridge
)
230 network
->ipv6_accept_ra
= false;
232 /* IPMasquerade=yes implies IPForward=yes */
233 if (network
->ip_masquerade
)
234 network
->ip_forward
|= ADDRESS_FAMILY_IPV4
;
236 if (network
->mtu
> 0 && network
->dhcp_use_mtu
) {
237 log_warning("%s: MTUBytes= in [Link] section and UseMTU= in [DHCP] section are set. "
238 "Disabling UseMTU=.", network
->filename
);
239 network
->dhcp_use_mtu
= false;
242 LIST_FOREACH_SAFE(addresses
, address
, address_next
, network
->static_addresses
)
243 if (address_section_verify(address
) < 0)
244 address_free(address
);
246 LIST_FOREACH_SAFE(routes
, route
, route_next
, network
->static_routes
)
247 if (route_section_verify(route
, network
) < 0)
250 LIST_FOREACH_SAFE(static_fdb_entries
, fdb
, fdb_next
, network
->static_fdb_entries
)
251 if (section_is_invalid(fdb
->section
))
254 LIST_FOREACH_SAFE(neighbors
, neighbor
, neighbor_next
, network
->neighbors
)
255 if (section_is_invalid(neighbor
->section
))
256 neighbor_free(neighbor
);
258 LIST_FOREACH_SAFE(labels
, label
, label_next
, network
->address_labels
)
259 if (section_is_invalid(label
->section
))
260 address_label_free(label
);
262 LIST_FOREACH_SAFE(prefixes
, prefix
, prefix_next
, network
->static_prefixes
)
263 if (section_is_invalid(prefix
->section
))
266 LIST_FOREACH_SAFE(rules
, rule
, rule_next
, network
->rules
)
267 if (section_is_invalid(rule
->section
))
268 routing_policy_rule_free(rule
);
273 int network_load_one(Manager
*manager
, const char *filename
) {
274 _cleanup_free_
char *fname
= NULL
, *name
= NULL
;
275 _cleanup_(network_unrefp
) Network
*network
= NULL
;
276 _cleanup_fclose_
FILE *file
= NULL
;
277 const char *dropin_dirname
;
284 file
= fopen(filename
, "re");
292 if (null_or_empty_fd(fileno(file
))) {
293 log_debug("Skipping empty file: %s", filename
);
297 fname
= strdup(filename
);
301 name
= strdup(basename(filename
));
305 d
= strrchr(name
, '.');
311 dropin_dirname
= strjoina(name
, ".network.d");
313 network
= new(Network
, 1);
317 *network
= (Network
) {
318 .filename
= TAKE_PTR(fname
),
319 .name
= TAKE_PTR(name
),
324 .required_for_online
= true,
325 .required_operstate_for_online
= LINK_OPERSTATE_DEGRADED
,
326 .dhcp
= ADDRESS_FAMILY_NO
,
327 .dhcp_use_ntp
= true,
328 .dhcp_use_dns
= true,
329 .dhcp_use_hostname
= true,
330 .dhcp_use_routes
= true,
331 /* NOTE: this var might be overwritten by network_apply_anonymize_if_set */
332 .dhcp_send_hostname
= true,
333 /* To enable/disable RFC7844 Anonymity Profiles */
334 .dhcp_anonymize
= false,
335 .dhcp_route_metric
= DHCP_ROUTE_METRIC
,
336 /* NOTE: this var might be overwritten by network_apply_anonymize_if_set */
337 .dhcp_client_identifier
= DHCP_CLIENT_ID_DUID
,
338 .dhcp_route_table
= RT_TABLE_MAIN
,
339 .dhcp_route_table_set
= false,
340 /* NOTE: from man: UseMTU=... Defaults to false*/
341 .dhcp_use_mtu
= false,
342 /* NOTE: from man: UseTimezone=... Defaults to "no".*/
343 .dhcp_use_timezone
= false,
344 .rapid_commit
= true,
346 .dhcp_server_emit_dns
= true,
347 .dhcp_server_emit_ntp
= true,
348 .dhcp_server_emit_router
= true,
349 .dhcp_server_emit_timezone
= true,
351 .router_emit_dns
= true,
352 .router_emit_domains
= true,
357 .allow_port_to_be_root
= -1,
359 .multicast_flood
= -1,
360 .multicast_to_unicast
= -1,
361 .neighbor_suppression
= -1,
363 .bridge_proxy_arp
= -1,
364 .bridge_proxy_arp_wifi
= -1,
365 .priority
= LINK_BRIDGE_PORT_PRIORITY_INVALID
,
366 .multicast_router
= _MULTICAST_ROUTER_INVALID
,
368 .lldp_mode
= LLDP_MODE_ROUTERS_ONLY
,
370 .dns_default_route
= -1,
371 .llmnr
= RESOLVE_SUPPORT_YES
,
372 .mdns
= RESOLVE_SUPPORT_NO
,
373 .dnssec_mode
= _DNSSEC_MODE_INVALID
,
374 .dns_over_tls_mode
= _DNS_OVER_TLS_MODE_INVALID
,
376 /* If LinkLocalAddressing= is not set, then set to ADDRESS_FAMILY_IPV6 later. */
377 .link_local
= _ADDRESS_FAMILY_BOOLEAN_INVALID
,
379 .ipv6_privacy_extensions
= IPV6_PRIVACY_EXTENSIONS_NO
,
380 .ipv6_accept_ra
= -1,
381 .ipv6_dad_transmits
= -1,
382 .ipv6_hop_limit
= -1,
383 .ipv6_proxy_ndp
= -1,
384 .duid
.type
= _DUID_TYPE_INVALID
,
389 .ipv6_accept_ra_use_dns
= true,
390 .ipv6_accept_ra_use_autonomous_prefix
= true,
391 .ipv6_accept_ra_use_onlink_prefix
= true,
392 .ipv6_accept_ra_route_table
= RT_TABLE_MAIN
,
393 .ipv6_accept_ra_route_table_set
= false,
395 .can_triple_sampling
= -1,
398 r
= config_parse_many(filename
, NETWORK_DIRS
, dropin_dirname
,
405 "RoutingPolicyRule\0"
408 "DHCPv4\0" /* compat */
411 "IPv6NDPProxyAddress\0"
415 "IPv6PrefixDelegation\0"
418 config_item_perf_lookup
, network_network_gperf_lookup
,
419 CONFIG_PARSE_WARN
, network
);
423 network_apply_anonymize_if_set(network
);
425 r
= network_add_ipv4ll_route(network
);
427 log_warning_errno(r
, "%s: Failed to add IPv4LL route, ignoring: %m", network
->filename
);
429 r
= network_add_default_route_on_device(network
);
431 log_warning_errno(r
, "%s: Failed to add default route on device, ignoring: %m",
434 r
= ordered_hashmap_ensure_allocated(&manager
->networks
, &string_hash_ops
);
438 r
= ordered_hashmap_put(manager
->networks
, network
->name
, network
);
442 if (network_verify(network
) < 0)
449 int network_load(Manager
*manager
) {
450 _cleanup_strv_free_
char **files
= NULL
;
456 ordered_hashmap_clear_with_destructor(manager
->networks
, network_unref
);
458 r
= conf_files_list_strv(&files
, ".network", NULL
, 0, NETWORK_DIRS
);
460 return log_error_errno(r
, "Failed to enumerate network files: %m");
462 STRV_FOREACH(f
, files
) {
463 r
= network_load_one(manager
, *f
);
471 static Network
*network_free(Network
*network
) {
472 IPv6ProxyNDPAddress
*ipv6_proxy_ndp_address
;
473 RoutingPolicyRule
*rule
;
484 free(network
->filename
);
486 set_free_free(network
->match_mac
);
487 strv_free(network
->match_path
);
488 strv_free(network
->match_driver
);
489 strv_free(network
->match_type
);
490 strv_free(network
->match_name
);
491 condition_free_list(network
->conditions
);
493 free(network
->description
);
494 free(network
->dhcp_vendor_class_identifier
);
495 strv_free(network
->dhcp_user_class
);
496 free(network
->dhcp_hostname
);
497 set_free(network
->dhcp_black_listed_ip
);
500 strv_free(network
->ntp
);
502 ordered_set_free_free(network
->search_domains
);
503 ordered_set_free_free(network
->route_domains
);
504 strv_free(network
->bind_carrier
);
506 ordered_set_free_free(network
->router_search_domains
);
507 free(network
->router_dns
);
508 set_free_free(network
->ndisc_black_listed_prefix
);
510 free(network
->bridge_name
);
511 free(network
->bond_name
);
512 free(network
->vrf_name
);
513 hashmap_free_free_key(network
->stacked_netdev_names
);
514 netdev_unref(network
->bridge
);
515 netdev_unref(network
->bond
);
516 netdev_unref(network
->vrf
);
517 hashmap_free_with_destructor(network
->stacked_netdevs
, netdev_unref
);
519 while ((route
= network
->static_routes
))
522 while ((address
= network
->static_addresses
))
523 address_free(address
);
525 while ((fdb_entry
= network
->static_fdb_entries
))
526 fdb_entry_free(fdb_entry
);
528 while ((ipv6_proxy_ndp_address
= network
->ipv6_proxy_ndp_addresses
))
529 ipv6_proxy_ndp_address_free(ipv6_proxy_ndp_address
);
531 while ((neighbor
= network
->neighbors
))
532 neighbor_free(neighbor
);
534 while ((label
= network
->address_labels
))
535 address_label_free(label
);
537 while ((prefix
= network
->static_prefixes
))
540 while ((rule
= network
->rules
))
541 routing_policy_rule_free(rule
);
543 hashmap_free(network
->addresses_by_section
);
544 hashmap_free(network
->routes_by_section
);
545 hashmap_free(network
->fdb_entries_by_section
);
546 hashmap_free(network
->neighbors_by_section
);
547 hashmap_free(network
->address_labels_by_section
);
548 hashmap_free(network
->prefixes_by_section
);
549 hashmap_free(network
->rules_by_section
);
551 if (network
->manager
) {
552 if (network
->manager
->networks
&& network
->name
)
553 ordered_hashmap_remove(network
->manager
->networks
, network
->name
);
555 if (network
->manager
->duids_requesting_uuid
)
556 set_remove(network
->manager
->duids_requesting_uuid
, &network
->duid
);
561 free(network
->dhcp_server_timezone
);
562 free(network
->dhcp_server_dns
);
563 free(network
->dhcp_server_ntp
);
565 set_free_free(network
->dnssec_negative_trust_anchors
);
567 return mfree(network
);
570 DEFINE_TRIVIAL_REF_UNREF_FUNC(Network
, network
, network_free
);
572 int network_get_by_name(Manager
*manager
, const char *name
, Network
**ret
) {
579 network
= ordered_hashmap_get(manager
->networks
, name
);
588 int network_get(Manager
*manager
, sd_device
*device
,
589 const char *ifname
, const struct ether_addr
*address
,
591 const char *path
= NULL
, *driver
= NULL
, *devtype
= NULL
;
599 (void) sd_device_get_property_value(device
, "ID_PATH", &path
);
601 (void) sd_device_get_property_value(device
, "ID_NET_DRIVER", &driver
);
603 (void) sd_device_get_devtype(device
, &devtype
);
606 ORDERED_HASHMAP_FOREACH(network
, manager
->networks
, i
)
607 if (net_match_config(network
->match_mac
, network
->match_path
,
608 network
->match_driver
, network
->match_type
,
610 address
, path
, driver
, devtype
, ifname
)) {
611 if (network
->match_name
&& device
) {
613 uint8_t name_assign_type
= NET_NAME_UNKNOWN
;
615 if (sd_device_get_sysattr_value(device
, "name_assign_type", &attr
) >= 0)
616 (void) safe_atou8(attr
, &name_assign_type
);
618 if (name_assign_type
== NET_NAME_ENUM
)
619 log_warning("%s: found matching network '%s', based on potentially unpredictable ifname",
620 ifname
, network
->filename
);
622 log_debug("%s: found matching network '%s'", ifname
, network
->filename
);
624 log_debug("%s: found matching network '%s'", ifname
, network
->filename
);
635 int network_apply(Network
*network
, Link
*link
) {
639 link
->network
= network_ref(network
);
641 if (network
->n_dns
> 0 ||
642 !strv_isempty(network
->ntp
) ||
643 !ordered_set_isempty(network
->search_domains
) ||
644 !ordered_set_isempty(network
->route_domains
))
650 bool network_has_static_ipv6_addresses(Network
*network
) {
655 LIST_FOREACH(addresses
, address
, network
->static_addresses
) {
656 if (address
->family
== AF_INET6
)
663 int config_parse_stacked_netdev(const char *unit
,
664 const char *filename
,
667 unsigned section_line
,
673 _cleanup_free_
char *name
= NULL
;
674 NetDevKind kind
= ltype
;
683 NETDEV_KIND_VLAN
, NETDEV_KIND_MACVLAN
, NETDEV_KIND_MACVTAP
,
684 NETDEV_KIND_IPVLAN
, NETDEV_KIND_IPVTAP
, NETDEV_KIND_VXLAN
,
685 NETDEV_KIND_L2TP
, NETDEV_KIND_MACSEC
, _NETDEV_KIND_TUNNEL
));
687 if (!ifname_valid(rvalue
)) {
688 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
689 "Invalid netdev name in %s=, ignoring assignment: %s", lvalue
, rvalue
);
693 name
= strdup(rvalue
);
697 r
= hashmap_ensure_allocated(h
, &string_hash_ops
);
701 r
= hashmap_put(*h
, name
, INT_TO_PTR(kind
));
703 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
704 "Cannot add NetDev '%s' to network, ignoring assignment: %m", name
);
706 log_syntax(unit
, LOG_DEBUG
, filename
, line
, r
,
707 "NetDev '%s' specified twice, ignoring.", name
);
714 int config_parse_domains(
716 const char *filename
,
719 unsigned section_line
,
734 if (isempty(rvalue
)) {
735 n
->search_domains
= ordered_set_free_free(n
->search_domains
);
736 n
->route_domains
= ordered_set_free_free(n
->route_domains
);
742 _cleanup_free_
char *w
= NULL
, *normalized
= NULL
;
746 r
= extract_first_word(&p
, &w
, NULL
, 0);
748 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
749 "Failed to extract search or route domain, ignoring: %s", rvalue
);
755 is_route
= w
[0] == '~';
756 domain
= is_route
? w
+ 1 : w
;
758 if (dns_name_is_root(domain
) || streq(domain
, "*")) {
759 /* If the root domain appears as is, or the special token "*" is found, we'll
760 * consider this as routing domain, unconditionally. */
762 domain
= "."; /* make sure we don't allow empty strings, thus write the root
765 r
= dns_name_normalize(domain
, 0, &normalized
);
767 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
768 "'%s' is not a valid domain name, ignoring.", domain
);
774 if (is_localhost(domain
)) {
775 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
776 "'localhost' domain may not be configured as search or route domain, ignoring assignment: %s",
782 OrderedSet
**set
= is_route
? &n
->route_domains
: &n
->search_domains
;
783 r
= ordered_set_ensure_allocated(set
, &string_hash_ops
);
787 r
= ordered_set_put_strdup(*set
, domain
);
795 int config_parse_ipv4ll(
797 const char *filename
,
800 unsigned section_line
,
807 AddressFamilyBoolean
*link_local
= data
;
815 /* Note that this is mostly like
816 * config_parse_address_family_boolean(), except that it
817 * applies only to IPv4 */
819 r
= parse_boolean(rvalue
);
821 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
822 "Failed to parse %s=%s, ignoring assignment. "
823 "Note that the setting %s= is deprecated, please use LinkLocalAddressing= instead.",
824 lvalue
, rvalue
, lvalue
);
828 SET_FLAG(*link_local
, ADDRESS_FAMILY_IPV4
, r
);
830 log_syntax(unit
, LOG_WARNING
, filename
, line
, 0,
831 "%s=%s is deprecated, please use LinkLocalAddressing=%s instead.",
832 lvalue
, rvalue
, address_family_boolean_to_string(*link_local
));
837 int config_parse_dhcp(
839 const char *filename
,
842 unsigned section_line
,
849 AddressFamilyBoolean
*dhcp
= data
, s
;
856 /* Note that this is mostly like
857 * config_parse_address_family_boolean(), except that it
858 * understands some old names for the enum values */
860 s
= address_family_boolean_from_string(rvalue
);
863 /* Previously, we had a slightly different enum here,
864 * support its values for compatibility. */
866 if (streq(rvalue
, "none"))
867 s
= ADDRESS_FAMILY_NO
;
868 else if (streq(rvalue
, "v4"))
869 s
= ADDRESS_FAMILY_IPV4
;
870 else if (streq(rvalue
, "v6"))
871 s
= ADDRESS_FAMILY_IPV6
;
872 else if (streq(rvalue
, "both"))
873 s
= ADDRESS_FAMILY_YES
;
875 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
876 "Failed to parse DHCP option, ignoring: %s", rvalue
);
880 log_syntax(unit
, LOG_WARNING
, filename
, line
, 0,
881 "DHCP=%s is deprecated, please use DHCP=%s instead.",
882 rvalue
, address_family_boolean_to_string(s
));
889 static const char* const dhcp_client_identifier_table
[_DHCP_CLIENT_ID_MAX
] = {
890 [DHCP_CLIENT_ID_MAC
] = "mac",
891 [DHCP_CLIENT_ID_DUID
] = "duid",
892 [DHCP_CLIENT_ID_DUID_ONLY
] = "duid-only",
895 DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(dhcp_client_identifier
, DHCPClientIdentifier
);
896 DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_client_identifier
, dhcp_client_identifier
, DHCPClientIdentifier
,
897 "Failed to parse client identifier type");
899 int config_parse_ipv6token(
901 const char *filename
,
904 unsigned section_line
,
911 union in_addr_union buffer
;
912 struct in6_addr
*token
= data
;
920 r
= in_addr_from_string(AF_INET6
, rvalue
, &buffer
);
922 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
923 "Failed to parse IPv6 token, ignoring: %s", rvalue
);
927 if (in_addr_is_null(AF_INET6
, &buffer
)) {
928 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
929 "IPv6 token cannot be the ANY address, ignoring: %s", rvalue
);
933 if ((buffer
.in6
.s6_addr32
[0] | buffer
.in6
.s6_addr32
[1]) != 0) {
934 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
935 "IPv6 token cannot be longer than 64 bits, ignoring: %s", rvalue
);
944 static const char* const ipv6_privacy_extensions_table
[_IPV6_PRIVACY_EXTENSIONS_MAX
] = {
945 [IPV6_PRIVACY_EXTENSIONS_NO
] = "no",
946 [IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC
] = "prefer-public",
947 [IPV6_PRIVACY_EXTENSIONS_YES
] = "yes",
950 DEFINE_STRING_TABLE_LOOKUP(ipv6_privacy_extensions
, IPv6PrivacyExtensions
);
952 int config_parse_ipv6_privacy_extensions(
954 const char *filename
,
957 unsigned section_line
,
964 IPv6PrivacyExtensions
*ipv6_privacy_extensions
= data
;
970 assert(ipv6_privacy_extensions
);
972 /* Our enum shall be a superset of booleans, hence first try
973 * to parse as boolean, and then as enum */
975 k
= parse_boolean(rvalue
);
977 *ipv6_privacy_extensions
= IPV6_PRIVACY_EXTENSIONS_YES
;
979 *ipv6_privacy_extensions
= IPV6_PRIVACY_EXTENSIONS_NO
;
981 IPv6PrivacyExtensions s
;
983 s
= ipv6_privacy_extensions_from_string(rvalue
);
986 if (streq(rvalue
, "kernel"))
987 s
= _IPV6_PRIVACY_EXTENSIONS_INVALID
;
989 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
990 "Failed to parse IPv6 privacy extensions option, ignoring: %s", rvalue
);
995 *ipv6_privacy_extensions
= s
;
1001 int config_parse_hostname(
1003 const char *filename
,
1005 const char *section
,
1006 unsigned section_line
,
1013 _cleanup_free_
char *hn
= NULL
;
1014 char **hostname
= data
;
1021 r
= config_parse_string(unit
, filename
, line
, section
, section_line
, lvalue
, ltype
, rvalue
, &hn
, userdata
);
1025 if (!hostname_is_valid(hn
, false)) {
1026 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
1027 "Hostname is not valid, ignoring assignment: %s", rvalue
);
1031 r
= dns_name_is_valid(hn
);
1033 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1034 "Failed to check validity of hostname '%s', ignoring assignment: %m", rvalue
);
1038 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
1039 "Hostname is not a valid DNS domain name, ignoring assignment: %s", rvalue
);
1043 return free_and_replace(*hostname
, hn
);
1046 int config_parse_timezone(
1048 const char *filename
,
1050 const char *section
,
1051 unsigned section_line
,
1058 _cleanup_free_
char *tz
= NULL
;
1059 char **datap
= data
;
1066 r
= config_parse_string(unit
, filename
, line
, section
, section_line
, lvalue
, ltype
, rvalue
, &tz
, userdata
);
1070 if (!timezone_is_valid(tz
, LOG_ERR
)) {
1071 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
1072 "Timezone is not valid, ignoring assignment: %s", rvalue
);
1076 return free_and_replace(*datap
, tz
);
1079 int config_parse_dhcp_server_dns(
1081 const char *filename
,
1083 const char *section
,
1084 unsigned section_line
,
1092 const char *p
= rvalue
;
1100 _cleanup_free_
char *w
= NULL
;
1101 union in_addr_union a
;
1104 r
= extract_first_word(&p
, &w
, NULL
, 0);
1108 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1109 "Failed to extract word, ignoring: %s", rvalue
);
1115 r
= in_addr_from_string(AF_INET
, w
, &a
);
1117 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1118 "Failed to parse DNS server address '%s', ignoring assignment: %m", w
);
1122 m
= reallocarray(n
->dhcp_server_dns
, n
->n_dhcp_server_dns
+ 1, sizeof(struct in_addr
));
1126 m
[n
->n_dhcp_server_dns
++] = a
.in
;
1127 n
->dhcp_server_dns
= m
;
1133 int config_parse_radv_dns(
1135 const char *filename
,
1137 const char *section
,
1138 unsigned section_line
,
1146 const char *p
= rvalue
;
1154 _cleanup_free_
char *w
= NULL
;
1155 union in_addr_union a
;
1157 r
= extract_first_word(&p
, &w
, NULL
, 0);
1161 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1162 "Failed to extract word, ignoring: %s", rvalue
);
1168 if (in_addr_from_string(AF_INET6
, w
, &a
) >= 0) {
1171 m
= reallocarray(n
->router_dns
, n
->n_router_dns
+ 1, sizeof(struct in6_addr
));
1175 m
[n
->n_router_dns
++] = a
.in6
;
1179 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
1180 "Failed to parse DNS server address, ignoring: %s", w
);
1186 int config_parse_radv_search_domains(
1188 const char *filename
,
1190 const char *section
,
1191 unsigned section_line
,
1199 const char *p
= rvalue
;
1207 _cleanup_free_
char *w
= NULL
, *idna
= NULL
;
1209 r
= extract_first_word(&p
, &w
, NULL
, 0);
1213 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1214 "Failed to extract word, ignoring: %s", rvalue
);
1220 r
= dns_name_apply_idna(w
, &idna
);
1222 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1223 "Failed to apply IDNA to domain name '%s', ignoring: %m", w
);
1226 /* transfer ownership to simplify subsequent operations */
1229 r
= ordered_set_ensure_allocated(&n
->router_search_domains
, &string_hash_ops
);
1233 r
= ordered_set_consume(n
->router_search_domains
, TAKE_PTR(idna
));
1241 int config_parse_dhcp_server_ntp(
1243 const char *filename
,
1245 const char *section
,
1246 unsigned section_line
,
1254 const char *p
= rvalue
;
1262 _cleanup_free_
char *w
= NULL
;
1263 union in_addr_union a
;
1266 r
= extract_first_word(&p
, &w
, NULL
, 0);
1270 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1271 "Failed to extract word, ignoring: %s", rvalue
);
1277 r
= in_addr_from_string(AF_INET
, w
, &a
);
1279 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1280 "Failed to parse NTP server address '%s', ignoring: %m", w
);
1284 m
= reallocarray(n
->dhcp_server_ntp
, n
->n_dhcp_server_ntp
+ 1, sizeof(struct in_addr
));
1288 m
[n
->n_dhcp_server_ntp
++] = a
.in
;
1289 n
->dhcp_server_ntp
= m
;
1293 int config_parse_dns(
1295 const char *filename
,
1297 const char *section
,
1298 unsigned section_line
,
1305 Network
*n
= userdata
;
1313 _cleanup_free_
char *w
= NULL
;
1314 union in_addr_union a
;
1315 struct in_addr_data
*m
;
1318 r
= extract_first_word(&rvalue
, &w
, NULL
, 0);
1322 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1323 "Invalid syntax, ignoring: %s", rvalue
);
1329 r
= in_addr_from_string_auto(w
, &family
, &a
);
1331 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1332 "Failed to parse dns server address, ignoring: %s", w
);
1336 m
= reallocarray(n
->dns
, n
->n_dns
+ 1, sizeof(struct in_addr_data
));
1340 m
[n
->n_dns
++] = (struct in_addr_data
) {
1351 int config_parse_dnssec_negative_trust_anchors(
1353 const char *filename
,
1355 const char *section
,
1356 unsigned section_line
,
1363 const char *p
= rvalue
;
1371 if (isempty(rvalue
)) {
1372 n
->dnssec_negative_trust_anchors
= set_free_free(n
->dnssec_negative_trust_anchors
);
1377 _cleanup_free_
char *w
= NULL
;
1379 r
= extract_first_word(&p
, &w
, NULL
, 0);
1381 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1382 "Failed to extract negative trust anchor domain, ignoring: %s", rvalue
);
1388 r
= dns_name_is_valid(w
);
1390 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1391 "%s is not a valid domain name, ignoring.", w
);
1395 r
= set_ensure_allocated(&n
->dnssec_negative_trust_anchors
, &dns_name_hash_ops
);
1399 r
= set_put(n
->dnssec_negative_trust_anchors
, w
);
1409 int config_parse_ntp(
1411 const char *filename
,
1413 const char *section
,
1414 unsigned section_line
,
1428 if (isempty(rvalue
)) {
1434 _cleanup_free_
char *w
= NULL
;
1436 r
= extract_first_word(&rvalue
, &w
, NULL
, 0);
1440 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1441 "Failed to extract NTP server name, ignoring: %s", rvalue
);
1447 r
= dns_name_is_valid_or_address(w
);
1449 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1450 "%s is not a valid domain name or IP address, ignoring.", w
);
1454 if (strv_length(*l
) > MAX_NTP_SERVERS
) {
1455 log_syntax(unit
, LOG_WARNING
, filename
, line
, 0,
1456 "More than %u NTP servers specified, ignoring \"%s\" and any subsequent entries.",
1457 MAX_NTP_SERVERS
, w
);
1461 r
= strv_consume(l
, TAKE_PTR(w
));
1469 int config_parse_dhcp_user_class(
1471 const char *filename
,
1473 const char *section
,
1474 unsigned section_line
,
1488 if (isempty(rvalue
)) {
1494 _cleanup_free_
char *w
= NULL
;
1496 r
= extract_first_word(&rvalue
, &w
, NULL
, 0);
1500 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1501 "Failed to split user classes option, ignoring: %s", rvalue
);
1507 if (strlen(w
) > 255) {
1508 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
1509 "%s length is not in the range 1-255, ignoring.", w
);
1513 r
= strv_push(l
, w
);
1523 int config_parse_section_route_table(
1525 const char *filename
,
1527 const char *section
,
1528 unsigned section_line
,
1535 Network
*network
= data
;
1544 r
= safe_atou32(rvalue
, &rt
);
1546 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1547 "Failed to parse RouteTable=%s, ignoring assignment: %m", rvalue
);
1551 if (streq_ptr(section
, "DHCP")) {
1552 network
->dhcp_route_table
= rt
;
1553 network
->dhcp_route_table_set
= true;
1554 } else { /* section is IPv6AcceptRA */
1555 network
->ipv6_accept_ra_route_table
= rt
;
1556 network
->ipv6_accept_ra_route_table_set
= true;
1562 int config_parse_dhcp_max_attempts(
1564 const char *filename
,
1566 const char *section
,
1567 unsigned section_line
,
1574 Network
*network
= data
;
1582 if (isempty(rvalue
)) {
1583 network
->dhcp_max_attempts
= 0;
1587 if (streq(rvalue
, "infinity")) {
1588 network
->dhcp_max_attempts
= (uint64_t) -1;
1592 r
= safe_atou64(rvalue
, &a
);
1594 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1595 "Failed to parse DHCP maximum attempts, ignoring: %s", rvalue
);
1600 log_syntax(unit
, LOG_ERR
, filename
, line
, 0,
1601 "%s= must be positive integer or 'infinity', ignoring: %s", lvalue
, rvalue
);
1605 network
->dhcp_max_attempts
= a
;
1610 int config_parse_dhcp_black_listed_ip_address(
1612 const char *filename
,
1614 const char *section
,
1615 unsigned section_line
,
1622 Network
*network
= data
;
1631 if (isempty(rvalue
)) {
1632 network
->dhcp_black_listed_ip
= set_free(network
->dhcp_black_listed_ip
);
1636 for (p
= rvalue
;;) {
1637 _cleanup_free_
char *n
= NULL
;
1638 union in_addr_union ip
;
1640 r
= extract_first_word(&p
, &n
, NULL
, 0);
1642 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1643 "Failed to parse DHCP black listed ip address, ignoring assignment: %s",
1650 r
= in_addr_from_string(AF_INET
, n
, &ip
);
1652 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1653 "DHCP black listed ip address is invalid, ignoring assignment: %s", n
);
1657 r
= set_ensure_allocated(&network
->dhcp_black_listed_ip
, NULL
);
1661 r
= set_put(network
->dhcp_black_listed_ip
, UINT32_TO_PTR(ip
.in
.s_addr
));
1663 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1664 "Failed to store DHCP black listed ip address '%s', ignoring assignment: %m", n
);
1670 DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_use_domains
, dhcp_use_domains
, DHCPUseDomains
,
1671 "Failed to parse DHCP use domains setting");
1673 static const char* const dhcp_use_domains_table
[_DHCP_USE_DOMAINS_MAX
] = {
1674 [DHCP_USE_DOMAINS_NO
] = "no",
1675 [DHCP_USE_DOMAINS_ROUTE
] = "route",
1676 [DHCP_USE_DOMAINS_YES
] = "yes",
1679 DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dhcp_use_domains
, DHCPUseDomains
, DHCP_USE_DOMAINS_YES
);
1681 int config_parse_iaid(const char *unit
,
1682 const char *filename
,
1684 const char *section
,
1685 unsigned section_line
,
1691 Network
*network
= data
;
1700 r
= safe_atou32(rvalue
, &iaid
);
1702 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1703 "Unable to read IAID, ignoring assignment: %s", rvalue
);
1707 network
->iaid
= iaid
;
1708 network
->iaid_set
= true;
1713 int config_parse_required_for_online(
1715 const char *filename
,
1717 const char *section
,
1718 unsigned section_line
,
1725 Network
*network
= data
;
1726 LinkOperationalState s
;
1727 bool required
= true;
1730 if (isempty(rvalue
)) {
1731 network
->required_for_online
= true;
1732 network
->required_operstate_for_online
= LINK_OPERSTATE_DEGRADED
;
1736 s
= link_operstate_from_string(rvalue
);
1738 r
= parse_boolean(rvalue
);
1740 log_syntax(unit
, LOG_ERR
, filename
, line
, r
,
1741 "Failed to parse %s= setting, ignoring assignment: %s",
1747 s
= LINK_OPERSTATE_DEGRADED
;
1750 network
->required_for_online
= required
;
1751 network
->required_operstate_for_online
= s
;