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af6f3d53 RG |
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 | */ | |
22 | ||
23 | #include "dnsdist-cache.hh" | |
24 | ||
050e6877 RG |
25 | extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size); |
26 | ||
af6f3d53 RG |
27 | extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
28 | ||
e8ffb27d RG |
29 | if (size > std::numeric_limits<uint16_t>::max()) { |
30 | return 0; | |
31 | } | |
32 | ||
af6f3d53 | 33 | /* dnsdist's version */ |
fa980c59 | 34 | DNSDistPacketCache pcSkipCookies(10000); |
c1f09824 | 35 | // By default, cookies are not hashed |
fa980c59 | 36 | pcSkipCookies.setECSParsingEnabled(true); |
fa980c59 RG |
37 | |
38 | DNSDistPacketCache pcHashCookies(10000); | |
39 | pcHashCookies.setECSParsingEnabled(true); | |
c1f09824 CHB |
40 | // Do not skip cookies |
41 | pcHashCookies.setSkippedOptions({}); | |
fa980c59 | 42 | |
af6f3d53 RG |
43 | try { |
44 | uint16_t qtype; | |
45 | uint16_t qclass; | |
46 | unsigned int consumed; | |
32fbb2ab | 47 | PacketBuffer vect(data, data+size); |
83c22ef3 | 48 | const DNSName qname(reinterpret_cast<const char*>(data), size, sizeof(dnsheader), false, &qtype, &qclass, &consumed); |
341d2553 RG |
49 | pcSkipCookies.getKey(qname.getStorage(), consumed, vect, false); |
50 | pcHashCookies.getKey(qname.getStorage(), consumed, vect, false); | |
af6f3d53 | 51 | boost::optional<Netmask> subnet; |
341d2553 | 52 | DNSDistPacketCache::getClientSubnet(vect, consumed, subnet); |
af6f3d53 RG |
53 | } |
54 | catch(const std::exception& e) { | |
55 | } | |
56 | catch(const PDNSException& e) { | |
57 | } | |
58 | ||
59 | return 0; | |
60 | } |