1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "namespaces.hh"
/** The QType class is meant to deal easily with the different kind of resource types, like 'A', 'NS',
* 'CNAME' etcetera. These types have both a name and a number. This class can seamlessly move between
* them. Use it like this:
\code
QType t;
t="CNAME";
cout<<t.getCode()<<endl; // prints '5'
t=6;
cout<<t.toString()<<endl; // prints 'SOA'
\endcode
*/
class QType
{
public:
QType(uint16_t qtype = 0) : code(qtype) {}
QType &operator=(const char *);
QType &operator=(const string &);
operator uint16_t() const {
return code;
}
const string toString() const;
uint16_t getCode() const
{
return code;
}
bool isSupportedType() const;
bool isMetadataType() const;
static uint16_t chartocode(const char* p);
enum typeenum : uint16_t {
ENT = 0,
A = 1,
NS = 2,
CNAME = 5,
SOA = 6,
MB = 7,
MG = 8,
MR = 9,
PTR = 12,
HINFO = 13,
MINFO = 14,
MX = 15,
TXT = 16,
RP = 17,
AFSDB = 18,
SIG = 24,
KEY = 25,
AAAA = 28,
LOC = 29,
SRV = 33,
NAPTR = 35,
KX = 36,
CERT = 37,
A6 = 38,
DNAME = 39,
OPT = 41,
APL = 42,
DS = 43,
SSHFP = 44,
IPSECKEY = 45,
RRSIG = 46,
NSEC = 47,
DNSKEY = 48,
DHCID = 49,
NSEC3 = 50,
NSEC3PARAM = 51,
TLSA = 52,
SMIMEA = 53,
RKEY = 57,
CDS = 59,
CDNSKEY = 60,
OPENPGPKEY = 61,
CSYNC = 62,
ZONEMD = 63,
SVCB = 64,
HTTPS = 65,
SPF = 99,
NID = 104,
L32 = 105,
L64 = 106,
LP = 107,
EUI48 = 108,
EUI64 = 109,
TKEY = 249,
TSIG = 250,
IXFR = 251,
AXFR = 252,
MAILB = 253,
MAILA = 254,
ANY = 255,
URI = 256,
CAA = 257,
DLV = 32769,
ADDR = 65400,
#if !defined(RECURSOR)
ALIAS = 65401,
LUA = 65402
#endif
};
const static uint16_t rfc6895MetaLowerBound = 128;
const static uint16_t rfc6895MetaUpperBound = 254; // Note 255: ANY is not included
const static uint16_t rfc6895Reserved = 65535;
const static map<const string, uint16_t> names;
const static map<uint16_t, const string> numbers;
private:
uint16_t code;
};
// Define hash function on QType. See https://en.cppreference.com/w/cpp/utility/hash
namespace std {
template<> struct hash<QType> {
std::size_t operator()(QType qtype) const noexcept {
return std::hash<uint16_t>{}(qtype.getCode());
}
};
}
inline std::ostream& operator<<(std::ostream& stream, const QType& qtype)
{
return stream << qtype.toString();
}
// Used by e.g. boost multi-index
inline size_t hash_value(const QType qtype) {
return qtype.getCode();
}
struct QClass
{
constexpr QClass(uint16_t code = 0) : qclass(code) {}
constexpr operator uint16_t() const {
return qclass;
}
constexpr uint16_t getCode() const
{
return qclass;
}
const std::string toString() const;
static const QClass IN;
static const QClass CHAOS;
static const QClass NONE;
static const QClass ANY;
private:
uint16_t qclass;
};
constexpr QClass QClass::IN(1);
constexpr QClass QClass::CHAOS(3);
constexpr QClass QClass::NONE(254);
constexpr QClass QClass::ANY(255);
inline std::ostream& operator<<(std::ostream& s, QClass qclass)
{
return s << qclass.toString();
}
|
