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-rw-r--r--src/network/networkd-manager-bus.c428
1 files changed, 428 insertions, 0 deletions
diff --git a/src/network/networkd-manager-bus.c b/src/network/networkd-manager-bus.c
new file mode 100644
index 0000000..2ab3aaa
--- /dev/null
+++ b/src/network/networkd-manager-bus.c
@@ -0,0 +1,428 @@
+/* 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-message-util.h"
+#include "bus-polkit.h"
+#include "networkd-dhcp-server-bus.h"
+#include "networkd-json.h"
+#include "networkd-link-bus.h"
+#include "networkd-link.h"
+#include "networkd-manager-bus.h"
+#include "networkd-manager.h"
+#include "networkd-network-bus.h"
+#include "path-util.h"
+#include "strv.h"
+#include "user-util.h"
+
+static int method_list_links(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ Manager *manager = userdata;
+ Link *link;
+ int r;
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(reply, 'a', "(iso)");
+ if (r < 0)
+ return r;
+
+ HASHMAP_FOREACH(link, manager->links_by_index) {
+ _cleanup_free_ char *path = NULL;
+
+ path = link_bus_path(link);
+ if (!path)
+ return -ENOMEM;
+
+ r = sd_bus_message_append(
+ reply, "(iso)",
+ link->ifindex,
+ link->ifname,
+ empty_to_root(path));
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
+static int method_get_link_by_name(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_free_ char *path = NULL;
+ Manager *manager = userdata;
+ const char *name;
+ Link *link;
+ int r;
+
+ r = sd_bus_message_read(message, "s", &name);
+ if (r < 0)
+ return r;
+
+ if (link_get_by_name(manager, name, &link) < 0)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %s not known", name);
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ path = link_bus_path(link);
+ if (!path)
+ return -ENOMEM;
+
+ r = sd_bus_message_append(reply, "io", link->ifindex, empty_to_root(path));
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
+static int method_get_link_by_index(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_free_ char *path = NULL;
+ Manager *manager = userdata;
+ int ifindex, r;
+ Link *link;
+
+ r = bus_message_read_ifindex(message, error, &ifindex);
+ if (r < 0)
+ return r;
+
+ r = link_get_by_index(manager, ifindex, &link);
+ if (r < 0)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %i not known", ifindex);
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ path = link_bus_path(link);
+ if (!path)
+ return -ENOMEM;
+
+ r = sd_bus_message_append(reply, "so", link->ifname, empty_to_root(path));
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
+static int call_link_method(Manager *m, sd_bus_message *message, sd_bus_message_handler_t handler, sd_bus_error *error) {
+ int ifindex, r;
+ Link *l;
+
+ assert(m);
+ assert(message);
+ assert(handler);
+
+ r = bus_message_read_ifindex(message, error, &ifindex);
+ if (r < 0)
+ return r;
+
+ r = link_get_by_index(m, ifindex, &l);
+ if (r < 0)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %i not known", ifindex);
+
+ return handler(message, l, error);
+}
+
+static int bus_method_set_link_ntp_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_ntp_servers, error);
+}
+
+static int bus_method_set_link_dns_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_dns_servers, error);
+}
+
+static int bus_method_set_link_dns_servers_ex(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_dns_servers_ex, error);
+}
+
+static int bus_method_set_link_domains(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_domains, error);
+}
+
+static int bus_method_set_link_default_route(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_default_route, error);
+}
+
+static int bus_method_set_link_llmnr(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_llmnr, error);
+}
+
+static int bus_method_set_link_mdns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_mdns, error);
+}
+
+static int bus_method_set_link_dns_over_tls(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_dns_over_tls, error);
+}
+
+static int bus_method_set_link_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_dnssec, error);
+}
+
+static int bus_method_set_link_dnssec_negative_trust_anchors(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_set_dnssec_negative_trust_anchors, error);
+}
+
+static int bus_method_revert_link_ntp(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_revert_ntp, error);
+}
+
+static int bus_method_revert_link_dns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_revert_dns, error);
+}
+
+static int bus_method_renew_link(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_renew, error);
+}
+
+static int bus_method_force_renew_link(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_force_renew, error);
+}
+
+static int bus_method_reconfigure_link(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_reconfigure, error);
+}
+
+static int bus_method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ Manager *manager = userdata;
+ Link *link;
+ int r;
+
+ r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
+ "org.freedesktop.network1.reload",
+ NULL, true, UID_INVALID,
+ &manager->polkit_registry, error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Polkit will call us back */
+
+ r = netdev_load(manager, true);
+ if (r < 0)
+ return r;
+
+ r = network_reload(manager);
+ if (r < 0)
+ return r;
+
+ HASHMAP_FOREACH(link, manager->links_by_index) {
+ r = link_reconfigure(link, /* force = */ false);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_reply_method_return(message, NULL);
+}
+
+static int bus_method_describe_link(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ return call_link_method(userdata, message, bus_link_method_describe, error);
+}
+
+static int bus_method_describe(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+ _cleanup_free_ char *text = NULL;
+ Manager *manager = ASSERT_PTR(userdata);
+ int r;
+
+ assert(message);
+
+ r = manager_build_json(manager, &v);
+ if (r < 0)
+ return log_error_errno(r, "Failed to build JSON data: %m");
+
+ r = json_variant_format(v, 0, &text);
+ if (r < 0)
+ return log_error_errno(r, "Failed to format JSON data: %m");
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(reply, "s", text);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
+static int property_get_namespace_id(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ uint64_t id = 0;
+ struct stat st;
+
+ assert(bus);
+ assert(reply);
+
+ /* Returns our own network namespace ID, i.e. the inode number of /proc/self/ns/net. This allows
+ * unprivileged clients to determine whether they are in the same network namespace as us (note that
+ * access to that path is restricted, thus they can't check directly unless privileged). */
+
+ if (stat("/proc/self/ns/net", &st) < 0) {
+ log_warning_errno(errno, "Failed to stat network namespace, ignoring: %m");
+ id = 0;
+ } else
+ id = st.st_ino;
+
+ return sd_bus_message_append(reply, "t", id);
+}
+
+static const sd_bus_vtable manager_vtable[] = {
+ SD_BUS_VTABLE_START(0),
+
+ SD_BUS_PROPERTY("OperationalState", "s", property_get_operational_state, offsetof(Manager, operational_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("CarrierState", "s", property_get_carrier_state, offsetof(Manager, carrier_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("AddressState", "s", property_get_address_state, offsetof(Manager, address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("IPv4AddressState", "s", property_get_address_state, offsetof(Manager, ipv4_address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("IPv6AddressState", "s", property_get_address_state, offsetof(Manager, ipv6_address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("OnlineState", "s", property_get_online_state, offsetof(Manager, online_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("NamespaceId", "t", property_get_namespace_id, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+
+ SD_BUS_METHOD_WITH_ARGS("ListLinks",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("a(iso)", links),
+ method_list_links,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("GetLinkByName",
+ SD_BUS_ARGS("s", name),
+ SD_BUS_RESULT("i", ifindex, "o", path),
+ method_get_link_by_name,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("GetLinkByIndex",
+ SD_BUS_ARGS("i", ifindex),
+ SD_BUS_RESULT("s", name, "o", path),
+ method_get_link_by_index,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkNTP",
+ SD_BUS_ARGS("i", ifindex, "as", servers),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_ntp_servers,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkDNS",
+ SD_BUS_ARGS("i", ifindex, "a(iay)", addresses),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_dns_servers,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkDNSEx",
+ SD_BUS_ARGS("i", ifindex, "a(iayqs)", addresses),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_dns_servers_ex,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkDomains",
+ SD_BUS_ARGS("i", ifindex, "a(sb)", domains),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_domains,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkDefaultRoute",
+ SD_BUS_ARGS("i", ifindex, "b", enable),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_default_route,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkLLMNR",
+ SD_BUS_ARGS("i", ifindex, "s", mode),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_llmnr,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkMulticastDNS",
+ SD_BUS_ARGS("i", ifindex, "s", mode),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_mdns,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkDNSOverTLS",
+ SD_BUS_ARGS("i", ifindex, "s", mode),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_dns_over_tls,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkDNSSEC",
+ SD_BUS_ARGS("i", ifindex, "s", mode),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_dnssec,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("SetLinkDNSSECNegativeTrustAnchors",
+ SD_BUS_ARGS("i", ifindex, "as", names),
+ SD_BUS_NO_RESULT,
+ bus_method_set_link_dnssec_negative_trust_anchors,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("RevertLinkNTP",
+ SD_BUS_ARGS("i", ifindex),
+ SD_BUS_NO_RESULT,
+ bus_method_revert_link_ntp,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("RevertLinkDNS",
+ SD_BUS_ARGS("i", ifindex),
+ SD_BUS_NO_RESULT,
+ bus_method_revert_link_dns,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("RenewLink",
+ SD_BUS_ARGS("i", ifindex),
+ SD_BUS_NO_RESULT,
+ bus_method_renew_link,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("ForceRenewLink",
+ SD_BUS_ARGS("i", ifindex),
+ SD_BUS_NO_RESULT,
+ bus_method_force_renew_link,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("ReconfigureLink",
+ SD_BUS_ARGS("i", ifindex),
+ SD_BUS_NO_RESULT,
+ bus_method_reconfigure_link,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("Reload",
+ SD_BUS_NO_ARGS,
+ SD_BUS_NO_RESULT,
+ bus_method_reload,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("DescribeLink",
+ SD_BUS_ARGS("i", ifindex),
+ SD_BUS_RESULT("s", json),
+ bus_method_describe_link,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD_WITH_ARGS("Describe",
+ SD_BUS_NO_ARGS,
+ SD_BUS_RESULT("s", json),
+ bus_method_describe,
+ SD_BUS_VTABLE_UNPRIVILEGED),
+
+ SD_BUS_VTABLE_END
+};
+
+int manager_send_changed_strv(Manager *manager, char **properties) {
+ assert(manager);
+ assert(properties);
+
+ if (sd_bus_is_ready(manager->bus) <= 0)
+ return 0;
+
+ return sd_bus_emit_properties_changed_strv(
+ manager->bus,
+ "/org/freedesktop/network1",
+ "org.freedesktop.network1.Manager",
+ properties);
+}
+
+const BusObjectImplementation manager_object = {
+ "/org/freedesktop/network1",
+ "org.freedesktop.network1.Manager",
+ .vtables = BUS_VTABLES(manager_vtable),
+ .children = BUS_IMPLEMENTATIONS(&dhcp_server_object, &link_object, &network_object),
+};