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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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.
*/
#pragma once
#include <stdint.h>
#define MAXNS 4 // max # name servers we'll track
#define MAXDNSRCH 6 // max # domains in search path
#define MAXDNSRCHPATH 256 // max length of domain search paths
#define MAXNSSAMPLES 64 // max # samples to store per server
// Per-netid configuration parameters passed from netd to the resolver
struct res_params {
uint16_t sample_validity; // sample lifetime in s
// threshold of success / total samples below which a server is considered broken
uint8_t success_threshold; // 0: disable, value / 100 otherwise
uint8_t min_samples; // min # samples needed for statistics to be considered meaningful
uint8_t max_samples; // max # samples taken into account for statistics
int base_timeout_msec; // base query retry timeout (if 0, use RES_TIMEOUT)
int retry_count; // number of retries
};
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