+ r = import_make_verification_jobs(&i->checksum_job, &i->signature_job, verify, url, i->glue, tar_import_job_on_finished, i);
+ if (r < 0)
+ return r;
+
+ r = import_job_begin(i->tar_job);
+ if (r < 0)
+ return r;
+
+ if (i->checksum_job) {
+ r = import_job_begin(i->checksum_job);
+ if (r < 0)
+ return r;
+ }
+
+ if (i->signature_job) {
+ r = import_job_begin(i->signature_job);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;