1 files changed, 119 insertions, 0 deletions
diff --git a/src/core/lib/security/credentials/alts/alts_credentials.cc b/src/core/lib/security/credentials/alts/alts_credentials.cc
new file mode 100644
index 0000000000..fa05d901bf
--- /dev/null
+++ b/src/core/lib/security/credentials/alts/alts_credentials.cc
@@ -0,0 +1,119 @@
+/*
+ *
+ * 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 <grpc/support/port_platform.h>
+
+#include "src/core/lib/security/credentials/alts/alts_credentials.h"
+
+#include <cstring>
+
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+
+#include "src/core/lib/security/credentials/alts/check_gcp_environment.h"
+#include "src/core/lib/security/security_connector/alts_security_connector.h"
+
+#define GRPC_CREDENTIALS_TYPE_ALTS "Alts"
+#define GRPC_ALTS_HANDSHAKER_SERVICE_URL "metadata.google.internal:8080"
+
+static void alts_credentials_destruct(grpc_channel_credentials* creds) {
+  grpc_alts_credentials* alts_creds =
+      reinterpret_cast<grpc_alts_credentials*>(creds);
+  grpc_alts_credentials_options_destroy(alts_creds->options);
+  gpr_free(alts_creds->handshaker_service_url);
+}
+
+static void alts_server_credentials_destruct(grpc_server_credentials* creds) {
+  grpc_alts_server_credentials* alts_creds =
+      reinterpret_cast<grpc_alts_server_credentials*>(creds);
+  grpc_alts_credentials_options_destroy(alts_creds->options);
+  gpr_free(alts_creds->handshaker_service_url);
+}
+
+static grpc_security_status alts_create_security_connector(
+    grpc_channel_credentials* creds,
+    grpc_call_credentials* request_metadata_creds, const char* target_name,
+    const grpc_channel_args* args, grpc_channel_security_connector** sc,
+    grpc_channel_args** new_args) {
+  return grpc_alts_channel_security_connector_create(
+      creds, request_metadata_creds, target_name, sc);
+}
+
+static grpc_security_status alts_server_create_security_connector(
+    grpc_server_credentials* creds, grpc_server_security_connector** sc) {
+  return grpc_alts_server_security_connector_create(creds, sc);
+}
+
+static const grpc_channel_credentials_vtable alts_credentials_vtable = {
+    alts_credentials_destruct, alts_create_security_connector,
+    /*duplicate_without_call_credentials=*/nullptr};
+
+static const grpc_server_credentials_vtable alts_server_credentials_vtable = {
+    alts_server_credentials_destruct, alts_server_create_security_connector};
+
+grpc_channel_credentials* grpc_alts_credentials_create_customized(
+    const grpc_alts_credentials_options* options,
+    const char* handshaker_service_url, bool enable_untrusted_alts) {
+  if (!enable_untrusted_alts && !grpc_alts_is_running_on_gcp()) {
+    return nullptr;
+  }
+  auto creds = static_cast<grpc_alts_credentials*>(
+      gpr_zalloc(sizeof(grpc_alts_credentials)));
+  creds->options = grpc_alts_credentials_options_copy(options);
+  creds->handshaker_service_url =
+      handshaker_service_url == nullptr
+          ? gpr_strdup(GRPC_ALTS_HANDSHAKER_SERVICE_URL)
+          : gpr_strdup(handshaker_service_url);
+  creds->base.type = GRPC_CREDENTIALS_TYPE_ALTS;
+  creds->base.vtable = &alts_credentials_vtable;
+  gpr_ref_init(&creds->base.refcount, 1);
+  return &creds->base;
+}
+
+grpc_server_credentials* grpc_alts_server_credentials_create_customized(
+    const grpc_alts_credentials_options* options,
+    const char* handshaker_service_url, bool enable_untrusted_alts) {
+  if (!enable_untrusted_alts && !grpc_alts_is_running_on_gcp()) {
+    return nullptr;
+  }
+  auto creds = static_cast<grpc_alts_server_credentials*>(
+      gpr_zalloc(sizeof(grpc_alts_server_credentials)));
+  creds->options = grpc_alts_credentials_options_copy(options);
+  creds->handshaker_service_url =
+      handshaker_service_url == nullptr
+          ? gpr_strdup(GRPC_ALTS_HANDSHAKER_SERVICE_URL)
+          : gpr_strdup(handshaker_service_url);
+  creds->base.type = GRPC_CREDENTIALS_TYPE_ALTS;
+  creds->base.vtable = &alts_server_credentials_vtable;
+  gpr_ref_init(&creds->base.refcount, 1);
+  return &creds->base;
+}
+
+grpc_channel_credentials* grpc_alts_credentials_create(
+    const grpc_alts_credentials_options* options) {
+  return grpc_alts_credentials_create_customized(
+      options, GRPC_ALTS_HANDSHAKER_SERVICE_URL, false);
+}
+
+grpc_server_credentials* grpc_alts_server_credentials_create(
+    const grpc_alts_credentials_options* options) {
+  return grpc_alts_server_credentials_create_customized(
+      options, GRPC_ALTS_HANDSHAKER_SERVICE_URL, false);
+}