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/*
*
* 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/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);
}
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