record_rdata.h | Explore in Territory

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef NET_DNS_RECORD_RDATA_H_
#define NET_DNS_RECORD_RDATA_H_

#include <stdint.h>

#include <map>
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <vector>

#include "base/check_op.h"
#include "base/compiler_specific.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_address.h"
#include "net/base/net_export.h"
#include "net/dns/public/dns_protocol.h"
#include "third_party/boringssl/src/include/openssl/sha.h"

namespace net {

class DnsRecordParser;

// Parsed represenation of the extra data in a record. Does not include standard
// DNS record data such as TTL, Name, Type and Class.
class NET_EXPORT RecordRdata { … };

// SRV record format (http://www.ietf.org/rfc/rfc2782.txt):
// 2 bytes network-order unsigned priority
// 2 bytes network-order unsigned weight
// 2 bytes network-order unsigned port
// target: domain name (on-the-wire representation)
class NET_EXPORT_PRIVATE SrvRecordRdata : public RecordRdata { … };

// A Record format (http://www.ietf.org/rfc/rfc1035.txt):
// 4 bytes for IP address.
class NET_EXPORT ARecordRdata : public RecordRdata { … };

// AAAA Record format (http://www.ietf.org/rfc/rfc1035.txt):
// 16 bytes for IP address.
class NET_EXPORT AAAARecordRdata : public RecordRdata { … };

// CNAME record format (http://www.ietf.org/rfc/rfc1035.txt):
// cname: On the wire representation of domain name.
class NET_EXPORT_PRIVATE CnameRecordRdata : public RecordRdata { … };

// PTR record format (http://www.ietf.org/rfc/rfc1035.txt):
// domain: On the wire representation of domain name.
class NET_EXPORT_PRIVATE PtrRecordRdata : public RecordRdata { … };

// TXT record format (http://www.ietf.org/rfc/rfc1035.txt):
// texts: One or more <character-string>s.
// a <character-string> is a length octet followed by as many characters.
class NET_EXPORT_PRIVATE TxtRecordRdata : public RecordRdata { … };

// Only the subset of the NSEC record format required by mDNS is supported.
// Nsec record format is described in http://www.ietf.org/rfc/rfc3845.txt and
// the limited version required for mDNS described in
// http://www.rfc-editor.org/rfc/rfc6762.txt Section 6.1.
class NET_EXPORT_PRIVATE NsecRecordRdata : public RecordRdata { … };

}  // namespace net

#endif  // NET_DNS_RECORD_RDATA_H_
chromium/net/dns/record_rdata.h
