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/*
*
* Copyright 2017, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#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(p); }
static void targets_info_destroy(grpc_exec_ctx *exec_ctx, void *p) {
grpc_slice_hash_table_unref(exec_ctx, p);
}
static int targets_info_cmp(void *a, void *b) { return GPR_ICMP(a, 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) {
grpc_arg arg;
arg.type = GRPC_ARG_POINTER;
arg.key = GRPC_ARG_LB_SECURE_NAMING_MAP;
arg.value.pointer.p = targets_info;
arg.value.pointer.vtable = &server_to_balancer_names_vtable;
return arg;
}
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 targets_info_arg->value.pointer.p;
}
return NULL;
}
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