1 files changed, 77 insertions, 0 deletions
diff --git a/src/network/networkd-dhcp4-bus.c b/src/network/networkd-dhcp4-bus.c
new file mode 100644
index 0000000..e00aa03
--- /dev/null
+++ b/src/network/networkd-dhcp4-bus.c
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "sd-dhcp-client.h"
+
+#include "alloc-util.h"
+#include "bus-common-errors.h"
+#include "bus-util.h"
+#include "dhcp-client-internal.h"
+#include "networkd-dhcp4-bus.h"
+#include "networkd-link-bus.h"
+#include "networkd-manager.h"
+#include "string-table.h"
+#include "strv.h"
+
+static int property_get_dhcp_client_state(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        Link *l = ASSERT_PTR(userdata);
+        sd_dhcp_client *c;
+
+        assert(reply);
+
+        c = l->dhcp_client;
+        if (!c)
+                return sd_bus_message_append(reply, "s", "disabled");
+
+        return sd_bus_message_append(reply, "s", dhcp_state_to_string(dhcp_client_get_state(c)));
+}
+
+static int dhcp_client_emit_changed(Link *link, const char *property, ...) {
+        _cleanup_free_ char *path = NULL;
+        char **l;
+
+        assert(link);
+
+        if (sd_bus_is_ready(link->manager->bus) <= 0)
+                return 0;
+
+        path = link_bus_path(link);
+        if (!path)
+                return log_oom();
+
+        l = strv_from_stdarg_alloca(property);
+
+        return sd_bus_emit_properties_changed_strv(
+                        link->manager->bus,
+                        path,
+                        "org.freedesktop.network1.DHCPv4Client",
+                        l);
+}
+
+int dhcp_client_callback_bus(sd_dhcp_client *c, int event, void *userdata) {
+        Link *l = ASSERT_PTR(userdata);
+
+        return dhcp_client_emit_changed(l, "State", NULL);
+}
+
+static const sd_bus_vtable dhcp_client_vtable[] = {
+        SD_BUS_VTABLE_START(0),
+
+        SD_BUS_PROPERTY("State", "s", property_get_dhcp_client_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+
+        SD_BUS_VTABLE_END
+};
+
+const BusObjectImplementation dhcp_client_object = {
+        "/org/freedesktop/network1/link",
+        "org.freedesktop.network1.DHCPv4Client",
+        .fallback_vtables = BUS_FALLBACK_VTABLES({dhcp_client_vtable, link_object_find}),
+        .node_enumerator = link_node_enumerator,
+};