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Commit | Line | Data |
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870a0fe4 AT |
1 | #ifdef HAVE_CONFIG_H |
2 | #include "config.h" | |
3 | #endif | |
ff6a1e7b BH |
4 | #include "dnsparser.hh" |
5 | #include "sstuff.hh" | |
6 | #include "misc.hh" | |
a0a276c2 BH |
7 | #include "dnswriter.hh" |
8 | #include "dnsrecords.hh" | |
b0d4fb45 | 9 | #include "statbag.hh" |
c5c4fbdc | 10 | #include <boost/array.hpp> |
a7d9ffb3 | 11 | #include "ednssubnet.hh" |
b0d4fb45 | 12 | StatBag S; |
ff6a1e7b | 13 | |
6e4c4a26 PD |
14 | bool hidettl=false; |
15 | ||
16 | string ttl(uint32_t ttl) | |
17 | { | |
18 | if(hidettl) | |
19 | return "[ttl]"; | |
20 | else | |
21 | return std::to_string(ttl); | |
22 | } | |
23 | ||
ff6a1e7b BH |
24 | int main(int argc, char** argv) |
25 | try | |
26 | { | |
ee6c3a6b | 27 | bool dnssec=false; |
b97043ee | 28 | bool recurse=false; |
c5c4fbdc | 29 | bool tcp=false; |
b8adb30d | 30 | bool showflags=false; |
b19ad29b | 31 | bool hidesoadetails=false; |
a7d9ffb3 | 32 | boost::optional<Netmask> ednsnm; |
ee6c3a6b | 33 | |
b0d4fb45 | 34 | reportAllTypes(); |
a0a276c2 | 35 | |
ee6c3a6b | 36 | if(argc < 5) { |
6e4c4a26 | 37 | cerr<<"Syntax: sdig IP-address port question question-type [dnssec] [recurse] [showflags] [hidesoadetails] [hidettl] [tcp] [ednssubnet SUBNET]\n"; |
a8ad4624 BH |
38 | exit(EXIT_FAILURE); |
39 | } | |
a0a276c2 | 40 | |
b19ad29b RA |
41 | if (argc > 5) { |
42 | for(int i=5; i<argc; i++) { | |
43 | if (strcmp(argv[i], "dnssec") == 0) | |
44 | dnssec=true; | |
45 | if (strcmp(argv[i], "recurse") == 0) | |
46 | recurse=true; | |
b0d6eced KM |
47 | if (strcmp(argv[i], "showflags") == 0) |
48 | showflags=true; | |
b19ad29b RA |
49 | if (strcmp(argv[i], "hidesoadetails") == 0) |
50 | hidesoadetails=true; | |
6e4c4a26 PD |
51 | if (strcmp(argv[i], "hidettl") == 0) |
52 | hidettl=true; | |
54baf8be | 53 | if (strcmp(argv[i], "tcp") == 0) |
54 | tcp=true; | |
a7d9ffb3 | 55 | if (strcmp(argv[i], "ednssubnet") == 0) { |
76060dd7 | 56 | ednsnm=Netmask(argv[++i]); |
b19ad29b RA |
57 | } |
58 | } | |
b97043ee PD |
59 | } |
60 | ||
a0a276c2 | 61 | vector<uint8_t> packet; |
bca6643b | 62 | |
eaedd091 | 63 | DNSPacketWriter pw(packet, DNSName(argv[3]), DNSRecordContent::TypeToNumber(argv[4])); |
a0a276c2 | 64 | |
a7d9ffb3 | 65 | if(dnssec || ednsnm || getenv("SDIGBUFSIZE")) |
ee6c3a6b | 66 | { |
794c2f92 PD |
67 | char *sbuf=getenv("SDIGBUFSIZE"); |
68 | int bufsize; | |
69 | if(sbuf) | |
70 | bufsize=atoi(sbuf); | |
71 | else | |
72 | bufsize=2800; | |
a7d9ffb3 | 73 | DNSPacketWriter::optvect_t opts; |
74 | if(ednsnm) { | |
a7d9ffb3 | 75 | EDNSSubnetOpts eo; |
76 | eo.source = *ednsnm; | |
77 | opts.push_back(make_pair(8, makeEDNSSubnetOptsString(eo))); | |
78 | } | |
79 | ||
80 | pw.addOpt(bufsize, 0, dnssec ? EDNSOpts::DNSSECOK : 0, opts); | |
ee6c3a6b PD |
81 | pw.commit(); |
82 | } | |
b97043ee PD |
83 | |
84 | if(recurse) | |
85 | { | |
86 | pw.getHeader()->rd=true; | |
87 | } | |
fdf05fd4 | 88 | |
ff6a1e7b | 89 | string reply; |
4a549837 | 90 | ComboAddress dest(argv[1] + (*argv[1]=='@'), atoi(argv[2])); |
ff6a1e7b | 91 | |
c5c4fbdc | 92 | if(tcp) { |
4a549837 | 93 | Socket sock(dest.sin4.sin_family, SOCK_STREAM); |
c5c4fbdc PD |
94 | sock.connect(dest); |
95 | uint16_t len; | |
96 | len = htons(packet.size()); | |
97 | if(sock.write((char *) &len, 2) != 2) | |
3f81d239 | 98 | throw PDNSException("tcp write failed"); |
c5c4fbdc PD |
99 | |
100 | sock.writen(string((char*)&*packet.begin(), (char*)&*packet.end())); | |
101 | ||
102 | if(sock.read((char *) &len, 2) != 2) | |
3f81d239 | 103 | throw PDNSException("tcp read failed"); |
c5c4fbdc PD |
104 | |
105 | len=ntohs(len); | |
106 | char *creply = new char[len]; | |
107 | int n=0; | |
108 | int numread; | |
109 | while(n<len) { | |
110 | numread=sock.read(creply+n, len-n); | |
111 | if(numread<0) | |
3f81d239 | 112 | throw PDNSException("tcp read failed"); |
c5c4fbdc PD |
113 | n+=numread; |
114 | } | |
115 | ||
116 | reply=string(creply, len); | |
117 | delete[] creply; | |
118 | } | |
119 | else //udp | |
120 | { | |
4a549837 | 121 | Socket sock(dest.sin4.sin_family, SOCK_DGRAM); |
c5c4fbdc | 122 | sock.sendTo(string((char*)&*packet.begin(), (char*)&*packet.end()), dest); |
fbf18d75 | 123 | int result=waitForData(sock.getHandle(), 10); |
124 | if(result < 0) | |
125 | throw std::runtime_error("Error waiting for data: "+string(strerror(errno))); | |
126 | if(!result) | |
127 | throw std::runtime_error("Timeout waiting for data"); | |
c5c4fbdc PD |
128 | sock.recvFrom(reply, dest); |
129 | } | |
ff6a1e7b | 130 | MOADNSParser mdp(reply); |
9d7fa327 | 131 | cout<<"Reply to question for qname='"<<mdp.d_qname.toString()<<"', qtype="<<DNSRecordContent::NumberToType(mdp.d_qtype)<<endl; |
a7d9ffb3 | 132 | cout<<"Rcode: "<<mdp.d_header.rcode<<" ("<<RCode::to_s(mdp.d_header.rcode)<<"), RD: "<<mdp.d_header.rd<<", QR: "<<mdp.d_header.qr; |
7fc69fd0 | 133 | cout<<", TC: "<<mdp.d_header.tc<<", AA: "<<mdp.d_header.aa<<", opcode: "<<mdp.d_header.opcode<<endl; |
945a9ad4 | 134 | |
ff6a1e7b | 135 | for(MOADNSParser::answers_t::const_iterator i=mdp.d_answers.begin(); i!=mdp.d_answers.end(); ++i) { |
f809c028 | 136 | cout<<i->first.d_place-1<<"\t"<<i->first.d_name.toString()<<"\tIN\t"<<DNSRecordContent::NumberToType(i->first.d_type); |
794c2f92 PD |
137 | if(i->first.d_type == QType::RRSIG) |
138 | { | |
139 | string zoneRep = i->first.d_content->getZoneRepresentation(); | |
140 | vector<string> parts; | |
141 | stringtok(parts, zoneRep); | |
6e4c4a26 | 142 | cout<<"\t"<<ttl(i->first.d_ttl)<<"\t"<< parts[0]<<" "<<parts[1]<<" "<<parts[2]<<" "<<parts[3]<<" [expiry] [inception] [keytag] "<<parts[7]<<" ...\n"; |
794c2f92 | 143 | } |
b8adb30d KM |
144 | else if(!showflags && i->first.d_type == QType::NSEC3) |
145 | { | |
146 | string zoneRep = i->first.d_content->getZoneRepresentation(); | |
147 | vector<string> parts; | |
148 | stringtok(parts, zoneRep); | |
6e4c4a26 | 149 | cout<<"\t"<<ttl(i->first.d_ttl)<<"\t"<< parts[0]<<" [flags] "<<parts[2]<<" "<<parts[3]<<" "<<parts[4]; |
b8adb30d KM |
150 | for(vector<string>::iterator iter = parts.begin()+5; iter != parts.end(); ++iter) |
151 | cout<<" "<<*iter; | |
152 | cout<<"\n"; | |
153 | } | |
794c2f92 PD |
154 | else if(i->first.d_type == QType::DNSKEY) |
155 | { | |
156 | string zoneRep = i->first.d_content->getZoneRepresentation(); | |
157 | vector<string> parts; | |
158 | stringtok(parts, zoneRep); | |
6e4c4a26 | 159 | cout<<"\t"<<ttl(i->first.d_ttl)<<"\t"<< parts[0]<<" "<<parts[1]<<" "<<parts[2]<<" ...\n"; |
794c2f92 | 160 | } |
b19ad29b RA |
161 | else if (i->first.d_type == QType::SOA && hidesoadetails) |
162 | { | |
163 | string zoneRep = i->first.d_content->getZoneRepresentation(); | |
164 | vector<string> parts; | |
165 | stringtok(parts, zoneRep); | |
6e4c4a26 | 166 | cout<<"\t"<<ttl(i->first.d_ttl)<<"\t"<<parts[0]<<" "<<parts[1]<<" [serial] "<<parts[3]<<" "<<parts[4]<<" "<<parts[5]<<" "<<parts[6]<<"\n"; |
b19ad29b | 167 | } |
794c2f92 PD |
168 | else |
169 | { | |
6e4c4a26 | 170 | cout<<"\t"<<ttl(i->first.d_ttl)<<"\t"<< i->first.d_content->getZoneRepresentation()<<"\n"; |
794c2f92 PD |
171 | } |
172 | ||
ff6a1e7b | 173 | } |
fdf05fd4 | 174 | |
0c70797e BH |
175 | EDNSOpts edo; |
176 | if(getEDNSOpts(mdp, &edo)) { | |
a5d9f5f9 | 177 | // cerr<<"Have "<<edo.d_options.size()<<" options!"<<endl; |
0c70797e | 178 | for(vector<pair<uint16_t, string> >::const_iterator iter = edo.d_options.begin(); |
4957a608 BH |
179 | iter != edo.d_options.end(); |
180 | ++iter) { | |
fdf05fd4 | 181 | if(iter->first == 5) {// 'EDNS PING' |
4957a608 | 182 | cerr<<"Have ednsping: '"<<iter->second<<"'\n"; |
a5d9f5f9 BH |
183 | //if(iter->second == ping) |
184 | // cerr<<"It is correct!"<<endl; | |
0c70797e | 185 | } |
a7d9ffb3 | 186 | if(iter->first == 8) {// 'EDNS subnet' |
187 | EDNSSubnetOpts reso; | |
188 | if(getEDNSSubnetOptsFromString(iter->second, &reso)) { | |
189 | cerr<<"EDNS Subnet response: "<<reso.source.toString()<<", scope: "<<reso.scope.toString()<<", family = "<<reso.scope.getNetwork().sin4.sin_family<<endl; | |
190 | } | |
191 | } | |
192 | ||
fdf05fd4 | 193 | else { |
4957a608 | 194 | cerr<<"Have unknown option "<<(int)iter->first<<endl; |
fdf05fd4 | 195 | } |
0c70797e BH |
196 | } |
197 | ||
198 | } | |
ff6a1e7b | 199 | } |
0c70797e | 200 | catch(std::exception &e) |
ff6a1e7b BH |
201 | { |
202 | cerr<<"Fatal: "<<e.what()<<endl; | |
203 | } | |
1a4843e0 | 204 | catch(PDNSException &e) |
205 | { | |
206 | cerr<<"Fatal: "<<e.reason<<endl; | |
207 | } |