You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
2.8 KiB
73 lines
2.8 KiB
// Copyright (c) 2020-2022, The Monero Project
|
|
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
// permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
// conditions and the following disclaimer.
|
|
//
|
|
// 2. 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.
|
|
//
|
|
// 3. Neither the name of the copyright holder 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 HOLDER 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 "net/resolve.h"
|
|
|
|
#include <boost/utility/string_ref.hpp>
|
|
#include "common/dns_utils.h"
|
|
#include "common/expect.h"
|
|
#include "net/error.h"
|
|
|
|
namespace net
|
|
{
|
|
namespace dnssec
|
|
{
|
|
expect<service_response> resolve_hostname(const std::string& addr, const std::string& tlsa_port)
|
|
{
|
|
// use basic (blocking) unbound for now, possibly refactor later
|
|
tools::DNSResolver& resolver = tools::DNSResolver::instance();
|
|
|
|
bool dnssec_available = false;
|
|
bool dnssec_valid = false;
|
|
std::vector<std::string> ip_records = resolver.get_ipv4(addr, dnssec_available, dnssec_valid);
|
|
|
|
if (dnssec_available && !dnssec_valid)
|
|
return {net::error::bogus_dnssec};
|
|
|
|
if (ip_records.empty())
|
|
{
|
|
ip_records = resolver.get_ipv6(addr, dnssec_available, dnssec_valid);
|
|
if (dnssec_available && !dnssec_valid)
|
|
return {net::error::bogus_dnssec};
|
|
if (ip_records.empty())
|
|
return {net::error::dns_query_failure};
|
|
}
|
|
|
|
std::vector<std::string> tlsa{};
|
|
if (dnssec_available && !tlsa_port.empty())
|
|
{
|
|
tlsa = resolver.get_tlsa_tcp_record(addr, tlsa_port, dnssec_available, dnssec_valid);
|
|
if (!dnssec_valid)
|
|
return {net::error::bogus_dnssec};
|
|
}
|
|
return {{std::move(ip_records), std::move(tlsa)}};
|
|
}
|
|
} // dnssec
|
|
} // net
|