extend local credentials to support tcp loopback

1 files changed, 114 insertions, 0 deletions

diff --git a/test/core/end2end/fixtures/local_util.cc b/test/core/end2end/fixtures/local_util.cc
new file mode 100644
index 0000000000..5f0b0300ac
--- /dev/null
+++ b/test/core/end2end/fixtures/local_util.cc
@@ -0,0 +1,114 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include "test/core/end2end/fixtures/local_util.h"
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/sync.h>
+
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/http/server/http_server_filter.h"
+#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/gpr/host_port.h"
+#include "src/core/lib/gpr/string.h"
+#include "src/core/lib/security/credentials/credentials.h"
+#include "src/core/lib/surface/server.h"
+#include "test/core/util/port.h"
+#include "test/core/util/test_config.h"
+
+grpc_end2end_test_fixture grpc_end2end_local_chttp2_create_fixture_fullstack() {
+  grpc_end2end_test_fixture f;
+  grpc_end2end_local_fullstack_fixture_data* ffd =
+      static_cast<grpc_end2end_local_fullstack_fixture_data*>(
+          gpr_malloc(sizeof(grpc_end2end_local_fullstack_fixture_data)));
+  memset(&f, 0, sizeof(f));
+  f.fixture_data = ffd;
+  f.cq = grpc_completion_queue_create_for_next(nullptr);
+  f.shutdown_cq = grpc_completion_queue_create_for_pluck(nullptr);
+  return f;
+}
+
+void grpc_end2end_local_chttp2_init_client_fullstack(
+    grpc_end2end_test_fixture* f, grpc_channel_args* client_args,
+    grpc_local_connect_type type) {
+  grpc_channel_credentials* creds = grpc_local_credentials_create(type);
+  grpc_end2end_local_fullstack_fixture_data* ffd =
+      static_cast<grpc_end2end_local_fullstack_fixture_data*>(f->fixture_data);
+  f->client =
+      grpc_secure_channel_create(creds, ffd->localaddr, client_args, nullptr);
+  GPR_ASSERT(f->client != nullptr);
+  grpc_channel_credentials_release(creds);
+}
+
+/*
+ * Check if server should fail auth check. If it is true, a different metadata
+ * processor will be installed that always fails in processing client's
+ * metadata.
+ */
+static bool fail_server_auth_check(grpc_channel_args* server_args) {
+  size_t i;
+  if (server_args == nullptr) return 0;
+  for (i = 0; i < server_args->num_args; i++) {
+    if (strcmp(server_args->args[i].key, FAIL_AUTH_CHECK_SERVER_ARG_NAME) ==
+        0) {
+      return true;
+    }
+  }
+  return false;
+}
+
+static void process_auth_failure(void* state, grpc_auth_context* ctx,
+                                 const grpc_metadata* md, size_t md_count,
+                                 grpc_process_auth_metadata_done_cb cb,
+                                 void* user_data) {
+  GPR_ASSERT(state == nullptr);
+  cb(user_data, nullptr, 0, nullptr, 0, GRPC_STATUS_UNAUTHENTICATED, nullptr);
+}
+
+void grpc_end2end_local_chttp2_init_server_fullstack(
+    grpc_end2end_test_fixture* f, grpc_channel_args* server_args,
+    grpc_local_connect_type type) {
+  grpc_server_credentials* creds = grpc_local_server_credentials_create(type);
+  grpc_end2end_local_fullstack_fixture_data* ffd =
+      static_cast<grpc_end2end_local_fullstack_fixture_data*>(f->fixture_data);
+  if (f->server) {
+    grpc_server_destroy(f->server);
+  }
+  f->server = grpc_server_create(server_args, nullptr);
+  grpc_server_register_completion_queue(f->server, f->cq, nullptr);
+  if (fail_server_auth_check(server_args)) {
+    grpc_auth_metadata_processor processor = {process_auth_failure, nullptr,
+                                              nullptr};
+    grpc_server_credentials_set_auth_metadata_processor(creds, processor);
+  }
+  GPR_ASSERT(
+      grpc_server_add_secure_http2_port(f->server, ffd->localaddr, creds));
+  grpc_server_credentials_release(creds);
+  grpc_server_start(f->server);
+}
+
+void grpc_end2end_local_chttp2_tear_down_fullstack(
+    grpc_end2end_test_fixture* f) {
+  grpc_end2end_local_fullstack_fixture_data* ffd =
+      static_cast<grpc_end2end_local_fullstack_fixture_data*>(f->fixture_data);
+  gpr_free(ffd->localaddr);
+  gpr_free(ffd);
+}