| /* |
| * |
| * 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/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((grpc_slice_hash_table *)p); |
| } |
| static void targets_info_destroy(grpc_exec_ctx *exec_ctx, void *p) { |
| grpc_slice_hash_table_unref(exec_ctx, (grpc_slice_hash_table *)p); |
| } |
| static int targets_info_cmp(void *a, void *b) { |
| return grpc_slice_hash_table_cmp((const grpc_slice_hash_table *)a, |
| (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 != NULL) { |
| GPR_ASSERT(targets_info_arg->type == GRPC_ARG_POINTER); |
| return (grpc_slice_hash_table *)targets_info_arg->value.pointer.p; |
| } |
| return NULL; |
| } |