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/*
*
* Copyright 2017 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 <grpc/support/log.h>
#include "src/core/lib/channel/channel_args.h"
#include "src/core/lib/security/transport/lb_targets_info.h"
/* Channel arg key for the mapping of LB server addresses to their names for
* secure naming purposes. */
#define GRPC_ARG_LB_SECURE_NAMING_MAP "grpc.lb_secure_naming_map"
static void* targets_info_copy(void* p) {
return grpc_slice_hash_table_ref(static_cast<grpc_slice_hash_table*>(p));
}
static void targets_info_destroy(void* p) {
grpc_slice_hash_table_unref(static_cast<grpc_slice_hash_table*>(p));
}
static int targets_info_cmp(void* a, void* b) {
return grpc_slice_hash_table_cmp(
static_cast<const grpc_slice_hash_table*>(a),
static_cast<const grpc_slice_hash_table*>(b));
}
static const grpc_arg_pointer_vtable server_to_balancer_names_vtable = {
targets_info_copy, targets_info_destroy, targets_info_cmp};
grpc_arg grpc_lb_targets_info_create_channel_arg(
grpc_slice_hash_table* targets_info) {
return grpc_channel_arg_pointer_create((char*)GRPC_ARG_LB_SECURE_NAMING_MAP,
targets_info,
&server_to_balancer_names_vtable);
}
grpc_slice_hash_table* grpc_lb_targets_info_find_in_args(
const grpc_channel_args* args) {
const grpc_arg* targets_info_arg =
grpc_channel_args_find(args, GRPC_ARG_LB_SECURE_NAMING_MAP);
if (targets_info_arg != nullptr) {
GPR_ASSERT(targets_info_arg->type == GRPC_ARG_POINTER);
return static_cast<grpc_slice_hash_table*>(
targets_info_arg->value.pointer.p);
}
return nullptr;
}
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