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39
40#ifndef QHOSTADDRESSPRIVATE_H
41#define QHOSTADDRESSPRIVATE_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of the QHostAddress and QNetworkInterface classes. This header file may change from
49// version to version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtNetwork/private/qtnetworkglobal_p.h>
55#include "qhostaddress.h"
56#include "qabstractsocket.h"
57
58QT_BEGIN_NAMESPACE
59
60enum AddressClassification {
61 LoopbackAddress = 1,
62 LocalNetAddress, // RFC 1122
63 LinkLocalAddress, // RFC 4291 (v6), RFC 3927 (v4)
64 MulticastAddress, // RFC 4291 (v6), RFC 3171 (v4)
65 BroadcastAddress, // RFC 919, 922
66
67 GlobalAddress = 16,
68 TestNetworkAddress, // RFC 3849 (v6), RFC 5737 (v4),
69 PrivateNetworkAddress, // RFC 1918
70 UniqueLocalAddress, // RFC 4193
71 SiteLocalAddress, // RFC 4291 (deprecated by RFC 3879, should be treated as global)
72
73 UnknownAddress = 0 // unclassified or reserved
74};
75
76class QNetmask
77{
78 // stores 0-32 for IPv4, 0-128 for IPv6, or 255 for invalid
79 quint8 length;
80public:
81 constexpr QNetmask() : length(255) {}
82
83 bool setAddress(const QHostAddress &address);
84 QHostAddress address(QAbstractSocket::NetworkLayerProtocol protocol) const;
85
86 int prefixLength() const { return length == 255 ? -1 : length; }
87 void setPrefixLength(QAbstractSocket::NetworkLayerProtocol proto, int len)
88 {
89 int maxlen = -1;
90 if (proto == QAbstractSocket::IPv4Protocol)
91 maxlen = 32;
92 else if (proto == QAbstractSocket::IPv6Protocol)
93 maxlen = 128;
94 if (len > maxlen || len < 0)
95 length = 255U;
96 else
97 length = unsigned(len);
98 }
99
100 friend bool operator==(QNetmask n1, QNetmask n2)
101 { return n1.length == n2.length; }
102};
103
104class QHostAddressPrivate : public QSharedData
105{
106public:
107 QHostAddressPrivate();
108
109 void setAddress(quint32 a_ = 0);
110 void setAddress(const quint8 *a_);
111 void setAddress(const Q_IPV6ADDR &a_);
112
113 bool parse(const QString &ipString);
114 void clear();
115
116 QString scopeId;
117
118 union {
119 Q_IPV6ADDR a6; // IPv6 address
120 struct { quint64 c[2]; } a6_64;
121 struct { quint32 c[4]; } a6_32;
122 };
123 quint32 a; // IPv4 address
124 qint8 protocol;
125
126 AddressClassification classify() const;
127 static AddressClassification classify(const QHostAddress &address)
128 { return address.d->classify(); }
129
130 friend class QHostAddress;
131};
132
133QT_END_NAMESPACE
134
135#endif
136