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12471842 PL |
1 | /* |
2 | * This file is part of PowerDNS or dnsdist. | |
3 | * Copyright -- PowerDNS.COM B.V. and its contributors | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * In addition, for the avoidance of any doubt, permission is granted to | |
10 | * link this program with OpenSSL and to (re)distribute the binaries | |
11 | * produced as the result of such linking. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | */ | |
e8c59f2d | 22 | #pragma once |
9a450843 BH |
23 | #include <string> |
24 | #include <netinet/ip.h> | |
25 | #include <netinet/udp.h> | |
26 | #include "dnsparser.hh" | |
8b422c02 | 27 | #include "iputils.hh" |
61b26744 | 28 | #include "namespaces.hh" |
9a450843 BH |
29 | |
30 | struct QuestionIdentifier | |
31 | { | |
abb11ca4 | 32 | QuestionIdentifier() = default; |
9a450843 BH |
33 | |
34 | bool operator<(const QuestionIdentifier& rhs) const | |
35 | { | |
36 | return | |
905dae56 RG |
37 | std::tie(d_id, d_qtype, d_source, d_dest, d_qname) < |
38 | std::tie(rhs.d_id, rhs.d_qtype, rhs.d_source, rhs.d_dest, rhs.d_qname); | |
9a450843 BH |
39 | } |
40 | ||
ef890b79 | 41 | |
9a450843 | 42 | // the canonical direction is that of the question |
ef890b79 | 43 | static QuestionIdentifier create(const ComboAddress& src, const ComboAddress& dst, const struct dnsheader& header, const DNSName& qname, uint16_t qtype) |
9a450843 BH |
44 | { |
45 | QuestionIdentifier ret; | |
a5d9353e | 46 | |
ef890b79 | 47 | if(header.qr) { |
a5d9353e | 48 | ret.d_source = dst; |
49 | ret.d_dest = src; | |
9a450843 BH |
50 | } |
51 | else { | |
a5d9353e | 52 | ret.d_source = src; |
53 | ret.d_dest = dst; | |
9a450843 | 54 | } |
ef890b79 | 55 | ret.d_qname=qname; |
56 | ret.d_qtype=qtype; | |
57 | ret.d_id=ntohs(header.id); | |
9a450843 BH |
58 | return ret; |
59 | } | |
60 | ||
ef890b79 | 61 | // the canonical direction is that of the question |
62 | static QuestionIdentifier create(const ComboAddress& src, const ComboAddress& dst, const MOADNSParser& mdp) | |
63 | { | |
64 | return create(src, dst, mdp.d_header, mdp.d_qname, mdp.d_qtype); | |
65 | } | |
66 | ||
67 | ||
8b422c02 | 68 | ComboAddress d_source, d_dest; |
9a450843 | 69 | |
af6406f5 | 70 | DNSName d_qname; |
1902ab7d OM |
71 | uint16_t d_qtype{0}; |
72 | uint16_t d_id{0}; | |
9a450843 BH |
73 | }; |
74 | ||
75 | inline ostream& operator<<(ostream &s, const QuestionIdentifier& qi) | |
76 | { | |
81aa6d25 | 77 | s<< "'"<<qi.d_qname<<"|"<<DNSRecordContent::NumberToType(qi.d_qtype)<<"', with id " << qi.d_id <<" from "<<qi.d_source.toStringWithPort(); |
9a450843 | 78 | |
8b422c02 | 79 | s<<" to " << qi.d_dest.toStringWithPort(); |
80 | return s; | |
9a450843 | 81 | } |