+static void test_sockmap_skb_verdict_attach(enum bpf_attach_type first,
+ enum bpf_attach_type second)
+{
+ struct test_sockmap_skb_verdict_attach *skel;
+ int err, map, verdict;
+
+ skel = test_sockmap_skb_verdict_attach__open_and_load();
+ if (CHECK_FAIL(!skel)) {
+ perror("test_sockmap_skb_verdict_attach__open_and_load");
+ return;
+ }
+
+ verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
+ map = bpf_map__fd(skel->maps.sock_map);
+
+ err = bpf_prog_attach(verdict, map, first, 0);
+ if (CHECK_FAIL(err)) {
+ perror("bpf_prog_attach");
+ goto out;
+ }
+
+ err = bpf_prog_attach(verdict, map, second, 0);
+ assert(err == -1 && errno == EBUSY);
+
+ err = bpf_prog_detach2(verdict, map, first);
+ if (CHECK_FAIL(err)) {
+ perror("bpf_prog_detach2");
+ goto out;
+ }
+out:
+ test_sockmap_skb_verdict_attach__destroy(skel);
+}
+