tests: add multifd migration tests of TLS with PSK credentials

This validates that we correctly handle multifd migration success
and failure scenarios when using TLS with pre shared keys.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220426160048.812266-8-berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

tests/qtest/migration-test.c

@@ -1816,6 +1816,48 @@ static void test_multifd_tcp_zstd(void)
 }
 #endif
 
+#ifdef CONFIG_GNUTLS
+static void *
+test_migrate_multifd_tcp_tls_psk_start_match(QTestState *from,
+                                             QTestState *to)
+{
+    test_migrate_precopy_tcp_multifd_start_common(from, to, "none");
+    return test_migrate_tls_psk_start_match(from, to);
+}
+
+static void *
+test_migrate_multifd_tcp_tls_psk_start_mismatch(QTestState *from,
+                                                QTestState *to)
+{
+    test_migrate_precopy_tcp_multifd_start_common(from, to, "none");
+    return test_migrate_tls_psk_start_mismatch(from, to);
+}
+
+static void test_multifd_tcp_tls_psk_match(void)
+{
+    MigrateCommon args = {
+        .listen_uri = "defer",
+        .start_hook = test_migrate_multifd_tcp_tls_psk_start_match,
+        .finish_hook = test_migrate_tls_psk_finish,
+    };
+    test_precopy_common(&args);
+}
+
+static void test_multifd_tcp_tls_psk_mismatch(void)
+{
+    MigrateCommon args = {
+        .start = {
+            .hide_stderr = true,
+        },
+        .listen_uri = "defer",
+        .start_hook = test_migrate_multifd_tcp_tls_psk_start_mismatch,
+        .finish_hook = test_migrate_tls_psk_finish,
+        .result = MIG_TEST_FAIL,
+    };
+    test_precopy_common(&args);
+}
+#endif /* CONFIG_GNUTLS */
+
 /*
  * This test does:
  *  source               target
@@ -2026,12 +2068,22 @@ int main(int argc, char **argv)
                    test_validate_uuid_dst_not_set);
 
     qtest_add_func("/migration/auto_converge", test_migrate_auto_converge);
-    qtest_add_func("/migration/multifd/tcp/none", test_multifd_tcp_none);
-    qtest_add_func("/migration/multifd/tcp/cancel", test_multifd_tcp_cancel);
-    qtest_add_func("/migration/multifd/tcp/zlib", test_multifd_tcp_zlib);
+    qtest_add_func("/migration/multifd/tcp/plain/none",
+                   test_multifd_tcp_none);
+    qtest_add_func("/migration/multifd/tcp/plain/cancel",
+                   test_multifd_tcp_cancel);
+    qtest_add_func("/migration/multifd/tcp/plain/zlib",
+                   test_multifd_tcp_zlib);
 #ifdef CONFIG_ZSTD
-    qtest_add_func("/migration/multifd/tcp/zstd", test_multifd_tcp_zstd);
+    qtest_add_func("/migration/multifd/tcp/plain/zstd",
+                   test_multifd_tcp_zstd);
 #endif
+#ifdef CONFIG_GNUTLS
+    qtest_add_func("/migration/multifd/tcp/tls/psk/match",
+                   test_multifd_tcp_tls_psk_match);
+    qtest_add_func("/migration/multifd/tcp/tls/psk/mismatch",
+                   test_multifd_tcp_tls_psk_mismatch);
+#endif /* CONFIG_GNUTLS */
 
     if (kvm_dirty_ring_supported()) {
         qtest_add_func("/migration/dirty_ring",