1 /* SPDX-License-Identifier: LGPL-2.1+ */
4 #include <netinet/in.h>
5 #include <sys/capability.h>
7 #include "alloc-util.h"
8 #include "bus-common-errors.h"
9 #include "bus-polkit.h"
11 #include "dns-domain.h"
12 #include "networkd-link-bus.h"
13 #include "networkd-link.h"
14 #include "networkd-manager.h"
15 #include "parse-util.h"
16 #include "resolve-util.h"
18 #include "user-util.h"
20 BUS_DEFINE_PROPERTY_GET_ENUM(property_get_operational_state
, link_operstate
, LinkOperationalState
);
21 BUS_DEFINE_PROPERTY_GET_ENUM(property_get_carrier_state
, link_carrier_state
, LinkCarrierState
);
22 BUS_DEFINE_PROPERTY_GET_ENUM(property_get_address_state
, link_address_state
, LinkAddressState
);
23 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_administrative_state
, link_state
, LinkState
);
25 static int property_get_bit_rates(
28 const char *interface
,
30 sd_bus_message
*reply
,
32 sd_bus_error
*error
) {
34 Link
*link
= userdata
;
43 manager
= link
->manager
;
45 if (!manager
->use_speed_meter
||
46 manager
->speed_meter_usec_old
== 0 ||
48 return sd_bus_message_append(reply
, "(tt)", UINT64_MAX
, UINT64_MAX
);
50 assert(manager
->speed_meter_usec_new
> manager
->speed_meter_usec_old
);
51 interval_sec
= (manager
->speed_meter_usec_new
- manager
->speed_meter_usec_old
) / USEC_PER_SEC
;
53 if (link
->stats_new
.tx_bytes
> link
->stats_old
.tx_bytes
)
54 tx
= (uint64_t) ((link
->stats_new
.tx_bytes
- link
->stats_old
.tx_bytes
) / interval_sec
);
56 tx
= (uint64_t) ((UINT64_MAX
- (link
->stats_old
.tx_bytes
- link
->stats_new
.tx_bytes
)) / interval_sec
);
58 if (link
->stats_new
.rx_bytes
> link
->stats_old
.rx_bytes
)
59 rx
= (uint64_t) ((link
->stats_new
.rx_bytes
- link
->stats_old
.rx_bytes
) / interval_sec
);
61 rx
= (uint64_t) ((UINT64_MAX
- (link
->stats_old
.rx_bytes
- link
->stats_new
.rx_bytes
)) / interval_sec
);
63 return sd_bus_message_append(reply
, "(tt)", tx
, rx
);
66 static int verify_managed_link(Link
*l
, sd_bus_error
*error
) {
69 if (l
->flags
& IFF_LOOPBACK
)
70 return sd_bus_error_setf(error
, BUS_ERROR_LINK_BUSY
, "Link %s is loopback device.", l
->ifname
);
75 int bus_link_method_set_ntp_servers(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
76 _cleanup_strv_free_
char **ntp
= NULL
;
84 r
= verify_managed_link(l
, error
);
88 r
= sd_bus_message_read_strv(message
, &ntp
);
92 STRV_FOREACH(i
, ntp
) {
93 r
= dns_name_is_valid_or_address(*i
);
97 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid NTP server: %s", *i
);
100 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
101 "org.freedesktop.network1.set-ntp-servers",
102 NULL
, true, UID_INVALID
,
103 &l
->manager
->polkit_registry
, error
);
107 return 1; /* Polkit will call us back */
109 strv_free_and_replace(l
->ntp
, ntp
);
111 (void) link_dirty(l
);
113 return sd_bus_reply_method_return(message
, NULL
);
116 int bus_link_method_set_dns_servers(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
117 _cleanup_free_
struct in_addr_data
*dns
= NULL
;
118 size_t allocated
= 0, n
= 0;
125 r
= verify_managed_link(l
, error
);
129 r
= sd_bus_message_enter_container(message
, 'a', "(iay)");
138 assert_cc(sizeof(int) == sizeof(int32_t));
140 r
= sd_bus_message_enter_container(message
, 'r', "iay");
146 r
= sd_bus_message_read(message
, "i", &family
);
150 if (!IN_SET(family
, AF_INET
, AF_INET6
))
151 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Unknown address family %i", family
);
153 r
= sd_bus_message_read_array(message
, 'y', &d
, &sz
);
156 if (sz
!= FAMILY_ADDRESS_SIZE(family
))
157 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid address size");
159 if (!dns_server_address_valid(family
, d
))
160 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid DNS server address");
162 r
= sd_bus_message_exit_container(message
);
166 if (!GREEDY_REALLOC(dns
, allocated
, n
+1))
169 dns
[n
].family
= family
;
170 memcpy(&dns
[n
].address
, d
, sz
);
174 r
= sd_bus_message_exit_container(message
);
178 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
179 "org.freedesktop.network1.set-dns-servers",
180 NULL
, true, UID_INVALID
,
181 &l
->manager
->polkit_registry
, error
);
185 return 1; /* Polkit will call us back */
187 free_and_replace(l
->dns
, dns
);
190 (void) link_dirty(l
);
192 return sd_bus_reply_method_return(message
, NULL
);
195 int bus_link_method_set_domains(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
196 _cleanup_(ordered_set_freep
) OrderedSet
*search_domains
= NULL
, *route_domains
= NULL
;
203 r
= verify_managed_link(l
, error
);
207 r
= sd_bus_message_enter_container(message
, 'a', "(sb)");
212 _cleanup_free_
char *str
= NULL
;
213 OrderedSet
**domains
;
217 r
= sd_bus_message_read(message
, "(sb)", &name
, &route_only
);
223 r
= dns_name_is_valid(name
);
227 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid search domain %s", name
);
228 if (!route_only
&& dns_name_is_root(name
))
229 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Root domain is not suitable as search domain");
231 r
= dns_name_normalize(name
, 0, &str
);
233 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid search domain %s", name
);
235 domains
= route_only
? &route_domains
: &search_domains
;
236 r
= ordered_set_ensure_allocated(domains
, &string_hash_ops
);
240 r
= ordered_set_put(*domains
, str
);
247 r
= sd_bus_message_exit_container(message
);
251 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
252 "org.freedesktop.network1.set-domains",
253 NULL
, true, UID_INVALID
,
254 &l
->manager
->polkit_registry
, error
);
258 return 1; /* Polkit will call us back */
260 ordered_set_free_free(l
->search_domains
);
261 ordered_set_free_free(l
->route_domains
);
262 l
->search_domains
= TAKE_PTR(search_domains
);
263 l
->route_domains
= TAKE_PTR(route_domains
);
265 (void) link_dirty(l
);
267 return sd_bus_reply_method_return(message
, NULL
);
270 int bus_link_method_set_default_route(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
277 r
= verify_managed_link(l
, error
);
281 r
= sd_bus_message_read(message
, "b", &b
);
285 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
286 "org.freedesktop.network1.set-default-route",
287 NULL
, true, UID_INVALID
,
288 &l
->manager
->polkit_registry
, error
);
292 return 1; /* Polkit will call us back */
294 if (l
->dns_default_route
!= b
) {
295 l
->dns_default_route
= b
;
296 (void) link_dirty(l
);
299 return sd_bus_reply_method_return(message
, NULL
);
302 int bus_link_method_set_llmnr(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
311 r
= verify_managed_link(l
, error
);
315 r
= sd_bus_message_read(message
, "s", &llmnr
);
320 mode
= RESOLVE_SUPPORT_YES
;
322 mode
= resolve_support_from_string(llmnr
);
324 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid LLMNR setting: %s", llmnr
);
327 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
328 "org.freedesktop.network1.set-llmnr",
329 NULL
, true, UID_INVALID
,
330 &l
->manager
->polkit_registry
, error
);
334 return 1; /* Polkit will call us back */
336 if (l
->llmnr
!= mode
) {
338 (void) link_dirty(l
);
341 return sd_bus_reply_method_return(message
, NULL
);
344 int bus_link_method_set_mdns(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
353 r
= verify_managed_link(l
, error
);
357 r
= sd_bus_message_read(message
, "s", &mdns
);
362 mode
= RESOLVE_SUPPORT_NO
;
364 mode
= resolve_support_from_string(mdns
);
366 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid MulticastDNS setting: %s", mdns
);
369 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
370 "org.freedesktop.network1.set-mdns",
371 NULL
, true, UID_INVALID
,
372 &l
->manager
->polkit_registry
, error
);
376 return 1; /* Polkit will call us back */
378 if (l
->mdns
!= mode
) {
380 (void) link_dirty(l
);
383 return sd_bus_reply_method_return(message
, NULL
);
386 int bus_link_method_set_dns_over_tls(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
388 const char *dns_over_tls
;
395 r
= verify_managed_link(l
, error
);
399 r
= sd_bus_message_read(message
, "s", &dns_over_tls
);
403 if (isempty(dns_over_tls
))
404 mode
= _DNS_OVER_TLS_MODE_INVALID
;
406 mode
= dns_over_tls_mode_from_string(dns_over_tls
);
408 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid DNSOverTLS setting: %s", dns_over_tls
);
411 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
412 "org.freedesktop.network1.set-dns-over-tls",
413 NULL
, true, UID_INVALID
,
414 &l
->manager
->polkit_registry
, error
);
418 return 1; /* Polkit will call us back */
420 if (l
->dns_over_tls_mode
!= mode
) {
421 l
->dns_over_tls_mode
= mode
;
422 (void) link_dirty(l
);
425 return sd_bus_reply_method_return(message
, NULL
);
428 int bus_link_method_set_dnssec(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
437 r
= verify_managed_link(l
, error
);
441 r
= sd_bus_message_read(message
, "s", &dnssec
);
446 mode
= _DNSSEC_MODE_INVALID
;
448 mode
= dnssec_mode_from_string(dnssec
);
450 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid DNSSEC setting: %s", dnssec
);
453 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
454 "org.freedesktop.network1.set-dnssec",
455 NULL
, true, UID_INVALID
,
456 &l
->manager
->polkit_registry
, error
);
460 return 1; /* Polkit will call us back */
462 if (l
->dnssec_mode
!= mode
) {
463 l
->dnssec_mode
= mode
;
464 (void) link_dirty(l
);
467 return sd_bus_reply_method_return(message
, NULL
);
470 int bus_link_method_set_dnssec_negative_trust_anchors(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
471 _cleanup_set_free_free_ Set
*ns
= NULL
;
472 _cleanup_strv_free_
char **ntas
= NULL
;
480 r
= verify_managed_link(l
, error
);
484 r
= sd_bus_message_read_strv(message
, &ntas
);
488 STRV_FOREACH(i
, ntas
) {
489 r
= dns_name_is_valid(*i
);
493 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid negative trust anchor domain: %s", *i
);
496 ns
= set_new(&dns_name_hash_ops
);
500 STRV_FOREACH(i
, ntas
) {
501 r
= set_put_strdup(ns
, *i
);
506 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
507 "org.freedesktop.network1.set-dnssec-negative-trust-anchors",
508 NULL
, true, UID_INVALID
,
509 &l
->manager
->polkit_registry
, error
);
513 return 1; /* Polkit will call us back */
515 set_free_free(l
->dnssec_negative_trust_anchors
);
516 l
->dnssec_negative_trust_anchors
= TAKE_PTR(ns
);
518 (void) link_dirty(l
);
520 return sd_bus_reply_method_return(message
, NULL
);
523 int bus_link_method_revert_ntp(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
530 r
= verify_managed_link(l
, error
);
534 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
535 "org.freedesktop.network1.revert-ntp",
536 NULL
, true, UID_INVALID
,
537 &l
->manager
->polkit_registry
, error
);
541 return 1; /* Polkit will call us back */
543 link_ntp_settings_clear(l
);
544 (void) link_dirty(l
);
546 return sd_bus_reply_method_return(message
, NULL
);
549 int bus_link_method_revert_dns(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
556 r
= verify_managed_link(l
, error
);
560 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
561 "org.freedesktop.network1.revert-dns",
562 NULL
, true, UID_INVALID
,
563 &l
->manager
->polkit_registry
, error
);
567 return 1; /* Polkit will call us back */
569 link_dns_settings_clear(l
);
570 (void) link_dirty(l
);
572 return sd_bus_reply_method_return(message
, NULL
);
575 int bus_link_method_renew(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
582 return sd_bus_error_setf(error
, BUS_ERROR_UNMANAGED_INTERFACE
,
583 "Interface %s is not managed by systemd-networkd",
586 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
587 "org.freedesktop.network1.renew",
588 NULL
, true, UID_INVALID
,
589 &l
->manager
->polkit_registry
, error
);
593 return 1; /* Polkit will call us back */
595 if (l
->dhcp_client
) {
596 r
= sd_dhcp_client_send_renew(l
->dhcp_client
);
601 return sd_bus_reply_method_return(message
, NULL
);
604 int bus_link_method_reconfigure(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
611 r
= bus_verify_polkit_async(message
, CAP_NET_ADMIN
,
612 "org.freedesktop.network1.reconfigure",
613 NULL
, true, UID_INVALID
,
614 &l
->manager
->polkit_registry
, error
);
618 return 1; /* Polkit will call us back */
620 r
= link_reconfigure(l
, true);
624 return sd_bus_reply_method_return(message
, NULL
);
627 const sd_bus_vtable link_vtable
[] = {
628 SD_BUS_VTABLE_START(0),
630 SD_BUS_PROPERTY("OperationalState", "s", property_get_operational_state
, offsetof(Link
, operstate
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
631 SD_BUS_PROPERTY("CarrierState", "s", property_get_carrier_state
, offsetof(Link
, carrier_state
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
632 SD_BUS_PROPERTY("AddressState", "s", property_get_address_state
, offsetof(Link
, address_state
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
633 SD_BUS_PROPERTY("AdministrativeState", "s", property_get_administrative_state
, offsetof(Link
, state
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
634 SD_BUS_PROPERTY("BitRates", "(tt)", property_get_bit_rates
, 0, 0),
636 SD_BUS_METHOD("SetNTP", "as", NULL
, bus_link_method_set_ntp_servers
, SD_BUS_VTABLE_UNPRIVILEGED
),
637 SD_BUS_METHOD("SetDNS", "a(iay)", NULL
, bus_link_method_set_dns_servers
, SD_BUS_VTABLE_UNPRIVILEGED
),
638 SD_BUS_METHOD("SetDomains", "a(sb)", NULL
, bus_link_method_set_domains
, SD_BUS_VTABLE_UNPRIVILEGED
),
639 SD_BUS_METHOD("SetDefaultRoute", "b", NULL
, bus_link_method_set_default_route
, SD_BUS_VTABLE_UNPRIVILEGED
),
640 SD_BUS_METHOD("SetLLMNR", "s", NULL
, bus_link_method_set_llmnr
, SD_BUS_VTABLE_UNPRIVILEGED
),
641 SD_BUS_METHOD("SetMulticastDNS", "s", NULL
, bus_link_method_set_mdns
, SD_BUS_VTABLE_UNPRIVILEGED
),
642 SD_BUS_METHOD("SetDNSOverTLS", "s", NULL
, bus_link_method_set_dns_over_tls
, SD_BUS_VTABLE_UNPRIVILEGED
),
643 SD_BUS_METHOD("SetDNSSEC", "s", NULL
, bus_link_method_set_dnssec
, SD_BUS_VTABLE_UNPRIVILEGED
),
644 SD_BUS_METHOD("SetDNSSECNegativeTrustAnchors", "as", NULL
, bus_link_method_set_dnssec_negative_trust_anchors
, SD_BUS_VTABLE_UNPRIVILEGED
),
645 SD_BUS_METHOD("RevertNTP", NULL
, NULL
, bus_link_method_revert_ntp
, SD_BUS_VTABLE_UNPRIVILEGED
),
646 SD_BUS_METHOD("RevertDNS", NULL
, NULL
, bus_link_method_revert_dns
, SD_BUS_VTABLE_UNPRIVILEGED
),
647 SD_BUS_METHOD("Renew", NULL
, NULL
, bus_link_method_renew
, SD_BUS_VTABLE_UNPRIVILEGED
),
648 SD_BUS_METHOD("Reconfigure", NULL
, NULL
, bus_link_method_reconfigure
, SD_BUS_VTABLE_UNPRIVILEGED
),
653 char *link_bus_path(Link
*link
) {
654 _cleanup_free_
char *ifindex
= NULL
;
659 assert(link
->ifindex
> 0);
661 if (asprintf(&ifindex
, "%d", link
->ifindex
) < 0)
664 r
= sd_bus_path_encode("/org/freedesktop/network1/link", ifindex
, &p
);
671 int link_node_enumerator(sd_bus
*bus
, const char *path
, void *userdata
, char ***nodes
, sd_bus_error
*error
) {
672 _cleanup_strv_free_
char **l
= NULL
;
673 Manager
*m
= userdata
;
683 l
= new0(char*, hashmap_size(m
->links
) + 1);
687 HASHMAP_FOREACH(link
, m
->links
, i
) {
690 p
= link_bus_path(link
);
698 *nodes
= TAKE_PTR(l
);
703 int link_object_find(sd_bus
*bus
, const char *path
, const char *interface
, void *userdata
, void **found
, sd_bus_error
*error
) {
704 _cleanup_free_
char *identifier
= NULL
;
705 Manager
*m
= userdata
;
715 r
= sd_bus_path_decode(path
, "/org/freedesktop/network1/link", &identifier
);
719 ifindex
= parse_ifindex(identifier
);
723 r
= link_get(m
, ifindex
, &link
);
732 int link_send_changed_strv(Link
*link
, char **properties
) {
733 _cleanup_free_
char *p
= NULL
;
736 assert(link
->manager
);
739 if (!link
->manager
->bus
)
742 p
= link_bus_path(link
);
746 return sd_bus_emit_properties_changed_strv(
749 "org.freedesktop.network1.Link",
753 int link_send_changed(Link
*link
, const char *property
, ...) {
756 properties
= strv_from_stdarg_alloca(property
);
758 return link_send_changed_strv(link
, properties
);