1# DNS OPT Resource Record unit tests
2#
3# Type the following command to launch start the tests:
4# $ sudo bash test/run_tests -t test/edns0.uts -F
5
6+ Test EDNS0 rdata
7
8= EDNS0TLV(), basic instanciation
9tlv = EDNS0TLV()
10raw(tlv) == b'\x00\x00\x00\x00'
11
12= EDNS0TLV(), check parameters
13tlv = EDNS0TLV(optcode=42, optlen=12, optdata="edns0tlv")
14raw(tlv) == b'\x00*\x00\x0cedns0tlv'
15
16= EDNS0TLV(), check computed optlen
17tlv = EDNS0TLV(optdata="edns0tlv")
18raw(tlv) == b'\x00\x00\x00\x08edns0tlv'
19
20= EDNS0TLV(), dissection
21tlv = EDNS0TLV(b'\x00*\x00\x08edns0tlv')
22tlv.optcode == 42 and tlv.optlen == 8 and tlv.optdata == b"edns0tlv"
23
24+ Test OPT RR
25
26= DNSRROPT(), basic instanciation
27opt = DNSRROPT()
28raw(opt) == b'\x00\x00)\x10\x00\x00\x00\x80\x00\x00\x00'
29
30= DNSRROPT(), check parameters
31opt = DNSRROPT(rrname="rropt", type=42, rclass=123, extrcode=1, version=2, z=3, rdlen=4, rdata=[EDNS0TLV()])
32raw(opt) == b'\x05rropt\x00\x00*\x00{\x01\x02\x00\x03\x00\x04\x00\x00\x00\x00'
33
34= DNSRROPT() & EDN0TLV(), check parameters
35opt = DNSRROPT(rrname="rropt", type=42, rclass=123, extrcode=1, version=2, z=3, rdlen=4, rdata=[EDNS0TLV(optcode=42, optlen=12, optdata="edns0tlv")])
36raw(opt) == b'\x05rropt\x00\x00*\x00{\x01\x02\x00\x03\x00\x04\x00*\x00\x0cedns0tlv'
37
38= DNSRROP(), dissection
39opt = DNSRROPT(b'\x05rropt\x00\x00*\x00{\x01\x02\x00\x03\x00\x0c\x00*\x00\x0cedns0tlv')
40opt.rrname == b"rropt." and opt.rdlen == 12 and opt.rdata[0].optcode == 42 and opt.rdata[0].optdata == b"edns0tlv"
41
42+ Test EDNS-PING
43
44= EDNS-PING - basic instanciation
45tlv = EDNS0TLV(optcode=5, optdata=b"\x00\x11\x22\x33")
46raw(tlv) == b'\x00\x05\x00\x04\x00\x11"3'
47
48#= EDNS-PING - Live test
49#~ netaccess
50#* NB: 85.17.219.217 and www.edns-ping.org seem down
51#old_debug_dissector = conf.debug_dissector
52#conf.debug_dissector = False
53#r = sr1(IP(dst="85.17.219.217")/UDP()/DNS(qd=[DNSQR(qtype="A", qname="www.edns-ping.org.")], ar=[DNSRROPT(z=0, rdata=[EDNS0TLV(optcode="PING", optdata=b"\x00\x11\x22\x33")])]), timeout=1)
54#conf.debug_dissector = old_debug_dissector
55#len(r.ar) and r.ar.rdata[0].optcode == 4  # XXX: should be 5
56
57+ Test DNS Name Server Identifier (NSID) Option
58
59= NSID- basic instanciation
60tlv = EDNS0TLV(optcode=2, optdata="")
61raw(tlv) == b'\x00\x02\x00\x00'
62
63= NSID - Live test
64~ netaccess
65old_debug_dissector = conf.debug_dissector
66conf.debug_dissector = False
67r = sr1(IP(dst="l.root-servers.net")/UDP()/DNS(qd=[DNSQR(qtype="SOA", qname=".")], ar=[DNSRROPT(z=0, rdata=[EDNS0TLV(optcode="NSID")])]), timeout=1)
68conf.debug_dissector = old_debug_dissector
69len(r.ar) and DNSRROPT in r.ar and len(r.ar[DNSRROPT].rdata) and len([x for x in r.ar[DNSRROPT].rdata if x.optcode == 3])
70