SBC: Add GET_LBA_STATUS support and simple test

lib/sync.c

@@ -355,6 +355,25 @@ iscsi_readcapacity16_sync(struct iscsi_context *iscsi, int lun)
 	return state.task;
 }
 
+struct scsi_task *
+iscsi_get_lba_status_sync(struct iscsi_context *iscsi, int lun, uint64_t starting_lba, uint32_t alloc_len)
+{
+	struct iscsi_sync_state state;
+
+	memset(&state, 0, sizeof(state));
+
+	if (iscsi_get_lba_status_task(iscsi, lun, starting_lba, alloc_len,
+				       scsi_sync_cb, &state) == NULL) {
+		iscsi_set_error(iscsi,
+				"Failed to send GetLbaStatus command");
+		return NULL;
+	}
+
+	event_loop(iscsi, &state);
+
+	return state.task;
+}
+
 struct scsi_task *
 iscsi_synchronizecache10_sync(struct iscsi_context *iscsi, int lun, int lba,
 			      int num_blocks, int syncnv, int immed)