+static int write_boot_status_message(struct discover_server *server,
+ struct client *client, const struct boot_status *status)
+{
+ struct pb_protocol_message *message;
+ int len;
+
+ len = pb_protocol_boot_status_len(status);
+
+ message = pb_protocol_create_message(client,
+ PB_PROTOCOL_ACTION_STATUS, len);
+ if (!message)
+ return -1;
+
+ pb_protocol_serialise_boot_status(status, message->payload, len);
+
+ return client_write_message(server, client, message);
+}
+
+static int discover_server_process_message(void *arg)
+{
+ struct pb_protocol_message *message;
+ struct boot_command *boot_command;
+ struct client *client = arg;
+ int rc;
+
+ message = pb_protocol_read_message(client, client->fd);
+
+ if (!message)
+ return 0;
+
+ if (message->action != PB_PROTOCOL_ACTION_BOOT) {
+ pb_log("%s: invalid action %d\n", __func__, message->action);
+ return 0;
+ }
+
+ boot_command = talloc(client, struct boot_command);
+
+ rc = pb_protocol_deserialise_boot_command(boot_command, message);
+ if (rc) {
+ pb_log("%s: no boot command?", __func__);
+ return 0;
+ }
+
+ device_handler_boot(client->server->device_handler, boot_command);
+
+ return 0;
+}
+
+static int discover_server_process_connection(void *arg)