blob: 9a8b67d68d7e979d228f88342e46b52da847a43e [file] [log] [blame]
// Copyright 2018 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include <vector>
#include <base/files/file_path.h>
#include <base/macros.h>
#include <base/memory/ref_counted.h>
#include <base/no_destructor.h>
#include "shill/refptr_types.h"
namespace shill {
// This provides a static function for dumping the DNS information out
// of an ipconfig into a "resolv.conf" formatted file.
class Resolver {
// The default comma-separated list of search-list prefixes that
// should be ignored when writing out a DNS configuration. These
// are usually preconfigured by a DHCP server and are not of real
// value to the user. This will release DNS bandwidth for searches
// we expect will have a better chance of getting what the user is
// looking for.
static const char kDefaultIgnoredSearchList[];
virtual ~Resolver();
// Since this is a singleton, use Resolver::GetInstance()->Foo().
static Resolver* GetInstance();
virtual void set_path(const base::FilePath& path) { path_ = path; }
// Install domain name service parameters, given a list of
// DNS servers in |dns_servers|, and a list of DNS search suffixes in
// |domain_search|.
virtual bool SetDNSFromLists(const std::vector<std::string>& dns_servers,
const std::vector<std::string>& domain_search);
// Remove any created domain name service file.
virtual bool ClearDNS();
// Sets the list of ignored DNS search suffixes. This list will be used
// to filter the domain_search parameter of later SetDNSFromLists() calls.
virtual void set_ignored_search_list(
const std::vector<std::string>& ignored_list) {
ignored_search_list_ = ignored_list;
friend class ResolverTest;
friend class base::NoDestructor<Resolver>;
base::FilePath path_;
std::vector<std::string> ignored_search_list_;
} // namespace shill