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-rw-r--r--src/network/networkd-link-bus.c816
1 files changed, 816 insertions, 0 deletions
diff --git a/src/network/networkd-link-bus.c b/src/network/networkd-link-bus.c
new file mode 100644
index 0000000..4df31df
--- /dev/null
+++ b/src/network/networkd-link-bus.c
@@ -0,0 +1,816 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <net/if.h>
+#include <netinet/in.h>
+#include <sys/capability.h>
+
+#include "alloc-util.h"
+#include "bus-common-errors.h"
+#include "bus-get-properties.h"
+#include "bus-message-util.h"
+#include "bus-polkit.h"
+#include "dns-domain.h"
+#include "networkd-link-bus.h"
+#include "networkd-link.h"
+#include "networkd-manager.h"
+#include "parse-util.h"
+#include "resolve-util.h"
+#include "socket-netlink.h"
+#include "strv.h"
+#include "user-util.h"
+
+BUS_DEFINE_PROPERTY_GET_ENUM(property_get_operational_state, link_operstate, LinkOperationalState);
+BUS_DEFINE_PROPERTY_GET_ENUM(property_get_carrier_state, link_carrier_state, LinkCarrierState);
+BUS_DEFINE_PROPERTY_GET_ENUM(property_get_address_state, link_address_state, LinkAddressState);
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_administrative_state, link_state, LinkState);
+
+static int property_get_bit_rates(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Link *link = userdata;
+ Manager *manager;
+ double interval_sec;
+ uint64_t tx, rx;
+
+ assert(bus);
+ assert(reply);
+ assert(userdata);
+
+ manager = link->manager;
+
+ if (!manager->use_speed_meter ||
+ manager->speed_meter_usec_old == 0 ||
+ !link->stats_updated)
+ return sd_bus_message_append(reply, "(tt)", UINT64_MAX, UINT64_MAX);
+
+ assert(manager->speed_meter_usec_new > manager->speed_meter_usec_old);
+ interval_sec = (manager->speed_meter_usec_new - manager->speed_meter_usec_old) / USEC_PER_SEC;
+
+ if (link->stats_new.tx_bytes > link->stats_old.tx_bytes)
+ tx = (uint64_t) ((link->stats_new.tx_bytes - link->stats_old.tx_bytes) / interval_sec);
+ else
+ tx = (uint64_t) ((UINT64_MAX - (link->stats_old.tx_bytes - link->stats_new.tx_bytes)) / interval_sec);
+
+ if (link->stats_new.rx_bytes > link->stats_old.rx_bytes)
+ rx = (uint64_t) ((link->stats_new.rx_bytes - link->stats_old.rx_bytes) / interval_sec);
+ else
+ rx = (uint64_t) ((UINT64_MAX - (link->stats_old.rx_bytes - link->stats_new.rx_bytes)) / interval_sec);
+
+ return sd_bus_message_append(reply, "(tt)", tx, rx);
+}
+
+static int verify_managed_link(Link *l, sd_bus_error *error) {
+ assert(l);
+
+ if (l->flags & IFF_LOOPBACK)
+ return sd_bus_error_setf(error, BUS_ERROR_LINK_BUSY, "Link %s is loopback device.", l->ifname);
+
+ return 0;
+}
+
+int bus_link_method_set_ntp_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_strv_free_ char **ntp = NULL;
+ Link *l = userdata;
+ int r;
+ char **i;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read_strv(message, &ntp);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(i, ntp) {
+ r = dns_name_is_valid_or_address(*i);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid NTP server: %s", *i);
+ }
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-ntp-servers",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ strv_free_and_replace(l->ntp, ntp);
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int bus_link_method_set_dns_servers_internal(sd_bus_message *message, void *userdata, sd_bus_error *error, bool extended) {
+ struct in_addr_full **dns;
+ Link *l = userdata;
+ size_t n;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = bus_message_read_dns_servers(message, error, extended, &dns, &n);
+ if (r < 0)
+ return r;
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-dns-servers",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ goto finalize;
+ if (r == 0) {
+ r = 1; /* Polkit will call us back */
+ goto finalize;
+ }
+
+ if (l->n_dns != (unsigned) -1)
+ for (unsigned i = 0; i < l->n_dns; i++)
+ in_addr_full_free(l->dns[i]);
+
+ free_and_replace(l->dns, dns);
+ l->n_dns = n;
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+
+finalize:
+ for (size_t i = 0; i < n; i++)
+ in_addr_full_free(dns[i]);
+ free(dns);
+
+ return r;
+}
+
+int bus_link_method_set_dns_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return bus_link_method_set_dns_servers_internal(message, userdata, error, false);
+}
+
+int bus_link_method_set_dns_servers_ex(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return bus_link_method_set_dns_servers_internal(message, userdata, error, true);
+}
+
+int bus_link_method_set_domains(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(ordered_set_freep) OrderedSet *search_domains = NULL, *route_domains = NULL;
+ Link *l = userdata;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_enter_container(message, 'a', "(sb)");
+ if (r < 0)
+ return r;
+
+ for (;;) {
+ _cleanup_free_ char *str = NULL;
+ OrderedSet **domains;
+ const char *name;
+ int route_only;
+
+ r = sd_bus_message_read(message, "(sb)", &name, &route_only);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ r = dns_name_is_valid(name);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid search domain %s", name);
+ if (!route_only && dns_name_is_root(name))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Root domain is not suitable as search domain");
+
+ r = dns_name_normalize(name, 0, &str);
+ if (r < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid search domain %s", name);
+
+ domains = route_only ? &route_domains : &search_domains;
+ r = ordered_set_ensure_allocated(domains, &string_hash_ops);
+ if (r < 0)
+ return r;
+
+ r = ordered_set_put(*domains, str);
+ if (r < 0)
+ return r;
+
+ TAKE_PTR(str);
+ }
+
+ r = sd_bus_message_exit_container(message);
+ if (r < 0)
+ return r;
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-domains",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ ordered_set_free_free(l->search_domains);
+ ordered_set_free_free(l->route_domains);
+ l->search_domains = TAKE_PTR(search_domains);
+ l->route_domains = TAKE_PTR(route_domains);
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_set_default_route(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ int r, b;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(message, "b", &b);
+ if (r < 0)
+ return r;
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-default-route",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ if (l->dns_default_route != b) {
+ l->dns_default_route = b;
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_set_llmnr(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ ResolveSupport mode;
+ const char *llmnr;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(message, "s", &llmnr);
+ if (r < 0)
+ return r;
+
+ if (isempty(llmnr))
+ mode = RESOLVE_SUPPORT_YES;
+ else {
+ mode = resolve_support_from_string(llmnr);
+ if (mode < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid LLMNR setting: %s", llmnr);
+ }
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-llmnr",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ if (l->llmnr != mode) {
+ l->llmnr = mode;
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_set_mdns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ ResolveSupport mode;
+ const char *mdns;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(message, "s", &mdns);
+ if (r < 0)
+ return r;
+
+ if (isempty(mdns))
+ mode = RESOLVE_SUPPORT_NO;
+ else {
+ mode = resolve_support_from_string(mdns);
+ if (mode < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid MulticastDNS setting: %s", mdns);
+ }
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-mdns",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ if (l->mdns != mode) {
+ l->mdns = mode;
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_set_dns_over_tls(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ const char *dns_over_tls;
+ DnsOverTlsMode mode;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(message, "s", &dns_over_tls);
+ if (r < 0)
+ return r;
+
+ if (isempty(dns_over_tls))
+ mode = _DNS_OVER_TLS_MODE_INVALID;
+ else {
+ mode = dns_over_tls_mode_from_string(dns_over_tls);
+ if (mode < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid DNSOverTLS setting: %s", dns_over_tls);
+ }
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-dns-over-tls",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ if (l->dns_over_tls_mode != mode) {
+ l->dns_over_tls_mode = mode;
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_set_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ const char *dnssec;
+ DnssecMode mode;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(message, "s", &dnssec);
+ if (r < 0)
+ return r;
+
+ if (isempty(dnssec))
+ mode = _DNSSEC_MODE_INVALID;
+ else {
+ mode = dnssec_mode_from_string(dnssec);
+ if (mode < 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid DNSSEC setting: %s", dnssec);
+ }
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-dnssec",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ if (l->dnssec_mode != mode) {
+ l->dnssec_mode = mode;
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_set_dnssec_negative_trust_anchors(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_set_free_free_ Set *ns = NULL;
+ _cleanup_strv_free_ char **ntas = NULL;
+ Link *l = userdata;
+ int r;
+ char **i;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read_strv(message, &ntas);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(i, ntas) {
+ r = dns_name_is_valid(*i);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid negative trust anchor domain: %s", *i);
+ }
+
+ ns = set_new(&dns_name_hash_ops);
+ if (!ns)
+ return -ENOMEM;
+
+ STRV_FOREACH(i, ntas) {
+ r = set_put_strdup(&ns, *i);
+ if (r < 0)
+ return r;
+ }
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.set-dnssec-negative-trust-anchors",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ set_free_free(l->dnssec_negative_trust_anchors);
+ l->dnssec_negative_trust_anchors = TAKE_PTR(ns);
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_revert_ntp(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.revert-ntp",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ link_ntp_settings_clear(l);
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_revert_dns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = verify_managed_link(l, error);
+ if (r < 0)
+ return r;
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.revert-dns",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ link_dns_settings_clear(l);
+
+ link_dirty(l);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_force_renew(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ int r;
+
+ assert(l);
+
+ if (!l->network)
+ return sd_bus_error_setf(error, BUS_ERROR_UNMANAGED_INTERFACE,
+ "Interface %s is not managed by systemd-networkd",
+ l->ifname);
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.forcerenew",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ if (l->dhcp_server) {
+ r = sd_dhcp_server_forcerenew(l->dhcp_server);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_renew(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ int r;
+
+ assert(l);
+
+ if (!l->network)
+ return sd_bus_error_setf(error, BUS_ERROR_UNMANAGED_INTERFACE,
+ "Interface %s is not managed by systemd-networkd",
+ l->ifname);
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.renew",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ if (l->dhcp_client) {
+ r = sd_dhcp_client_send_renew(l->dhcp_client);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+int bus_link_method_reconfigure(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Link *l = userdata;
+ int r;
+
+ assert(message);
+ assert(l);
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.reconfigure",
+ NULL, true, UID_INVALID,
+ &l->manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ r = link_reconfigure(l, true);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ link_set_state(l, LINK_STATE_INITIALIZED);
+ r = link_save_and_clean(l);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+const sd_bus_vtable link_vtable[] = {
+ SD_BUS_VTABLE_START(0),
+
+ SD_BUS_PROPERTY("OperationalState", "s", property_get_operational_state, offsetof(Link, operstate), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("CarrierState", "s", property_get_carrier_state, offsetof(Link, carrier_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("AddressState", "s", property_get_address_state, offsetof(Link, address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("AdministrativeState", "s", property_get_administrative_state, offsetof(Link, state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("BitRates", "(tt)", property_get_bit_rates, 0, 0),
+
+ SD_BUS_METHOD("SetNTP", "as", NULL, bus_link_method_set_ntp_servers, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetDNS", "a(iay)", NULL, bus_link_method_set_dns_servers, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetDNSEx", "a(iayqs)", NULL, bus_link_method_set_dns_servers_ex, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetDomains", "a(sb)", NULL, bus_link_method_set_domains, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetDefaultRoute", "b", NULL, bus_link_method_set_default_route, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetLLMNR", "s", NULL, bus_link_method_set_llmnr, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetMulticastDNS", "s", NULL, bus_link_method_set_mdns, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetDNSOverTLS", "s", NULL, bus_link_method_set_dns_over_tls, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetDNSSEC", "s", NULL, bus_link_method_set_dnssec, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("SetDNSSECNegativeTrustAnchors", "as", NULL, bus_link_method_set_dnssec_negative_trust_anchors, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("RevertNTP", NULL, NULL, bus_link_method_revert_ntp, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("RevertDNS", NULL, NULL, bus_link_method_revert_dns, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("Renew", NULL, NULL, bus_link_method_renew, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("ForceRenew", NULL, NULL, bus_link_method_force_renew, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("Reconfigure", NULL, NULL, bus_link_method_reconfigure, SD_BUS_VTABLE_UNPRIVILEGED),
+
+ SD_BUS_VTABLE_END
+};
+
+char *link_bus_path(Link *link) {
+ _cleanup_free_ char *ifindex = NULL;
+ char *p;
+ int r;
+
+ assert(link);
+ assert(link->ifindex > 0);
+
+ if (asprintf(&ifindex, "%d", link->ifindex) < 0)
+ return NULL;
+
+ r = sd_bus_path_encode("/org/freedesktop/network1/link", ifindex, &p);
+ if (r < 0)
+ return NULL;
+
+ return p;
+}
+
+int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
+ _cleanup_strv_free_ char **l = NULL;
+ Manager *m = userdata;
+ unsigned c = 0;
+ Link *link;
+
+ assert(bus);
+ assert(path);
+ assert(m);
+ assert(nodes);
+
+ l = new0(char*, hashmap_size(m->links) + 1);
+ if (!l)
+ return -ENOMEM;
+
+ HASHMAP_FOREACH(link, m->links) {
+ char *p;
+
+ p = link_bus_path(link);
+ if (!p)
+ return -ENOMEM;
+
+ l[c++] = p;
+ }
+
+ l[c] = NULL;
+ *nodes = TAKE_PTR(l);
+
+ return 1;
+}
+
+int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
+ _cleanup_free_ char *identifier = NULL;
+ Manager *m = userdata;
+ Link *link;
+ int ifindex, r;
+
+ assert(bus);
+ assert(path);
+ assert(interface);
+ assert(m);
+ assert(found);
+
+ r = sd_bus_path_decode(path, "/org/freedesktop/network1/link", &identifier);
+ if (r <= 0)
+ return 0;
+
+ ifindex = parse_ifindex(identifier);
+ if (ifindex < 0)
+ return 0;
+
+ r = link_get(m, ifindex, &link);
+ if (r < 0)
+ return 0;
+
+ if (streq(interface, "org.freedesktop.network1.DHCPServer") && !link->dhcp_server)
+ return 0;
+
+ *found = link;
+
+ return 1;
+}
+
+int link_send_changed_strv(Link *link, char **properties) {
+ _cleanup_free_ char *p = NULL;
+
+ assert(link);
+ assert(link->manager);
+ assert(properties);
+
+ if (!link->manager->bus)
+ return 0;
+
+ p = link_bus_path(link);
+ if (!p)
+ return -ENOMEM;
+
+ return sd_bus_emit_properties_changed_strv(
+ link->manager->bus,
+ p,
+ "org.freedesktop.network1.Link",
+ properties);
+}
+
+int link_send_changed(Link *link, const char *property, ...) {
+ char **properties;
+
+ properties = strv_from_stdarg_alloca(property);
+
+ return link_send_changed_strv(link, properties);
+}