dnssec_test.py revision 291767 
1#!/usr/bin/env python
2from __future__ import print_function
3from unbound import ub_ctx, RR_TYPE_A, RR_TYPE_RRSIG, RR_TYPE_NSEC, RR_TYPE_NSEC3
4import ldns
5
6def dnssecParse(domain, rrType=RR_TYPE_A):
7    print("Resolving domain", domain)
8    s, r = resolver.resolve(domain)
9    print("status: %s, secure: %s, rcode: %s, havedata: %s, answer_len; %s" % (s, r.secure, r.rcode_str, r.havedata, r.answer_len))
10
11    s, pkt = ldns.ldns_wire2pkt(r.packet)
12    if s != 0:
13        raise RuntimeError("Error parsing DNS packet")
14
15    rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_ANSWER)
16    print("RRSIGs from answer:", sorted(rrsigs))
17
18    rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_AUTHORITY)
19    print("RRSIGs from authority:", sorted(rrsigs))
20
21    nsecs = pkt.rr_list_by_type(RR_TYPE_NSEC, ldns.LDNS_SECTION_AUTHORITY)
22    print("NSECs:", sorted(nsecs))
23
24    nsec3s = pkt.rr_list_by_type(RR_TYPE_NSEC3, ldns.LDNS_SECTION_AUTHORITY)
25    print("NSEC3s:", sorted(nsec3s))
26
27    print("---")
28
29
30resolver = ub_ctx()
31resolver.add_ta(".   IN DS   19036 8 2 49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5")
32
33dnssecParse("nic.cz")
34dnssecParse("nonexistent-domain-blablabla.cz")
35dnssecParse("nonexistent-domain-blablabla.root.cz")
36
37