1238106Sdes#!/usr/bin/env python
2238106Sdesfrom unbound import ub_ctx, RR_TYPE_A, RR_TYPE_RRSIG, RR_TYPE_NSEC, RR_TYPE_NSEC3
3238106Sdesimport ldns
4238106Sdes
5238106Sdesdef dnssecParse(domain, rrType=RR_TYPE_A):
6285206Sdes    print("Resolving domain", domain)
7238106Sdes    s, r = resolver.resolve(domain)
8285206Sdes    print("status: %s, secure: %s, rcode: %s, havedata: %s, answer_len; %s" % (s, r.secure, r.rcode_str, r.havedata, r.answer_len))
9238106Sdes
10238106Sdes    s, pkt = ldns.ldns_wire2pkt(r.packet)
11238106Sdes    if s != 0:
12238106Sdes        raise RuntimeError("Error parsing DNS packet")
13238106Sdes
14238106Sdes    rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_ANSWER)
15285206Sdes    print("RRSIGs from answer:", rrsigs)
16238106Sdes
17238106Sdes    rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_AUTHORITY)
18285206Sdes    print("RRSIGs from authority:", rrsigs)
19238106Sdes
20238106Sdes    nsecs = pkt.rr_list_by_type(RR_TYPE_NSEC, ldns.LDNS_SECTION_AUTHORITY)
21285206Sdes    print("NSECs:", nsecs)
22238106Sdes
23238106Sdes    nsec3s = pkt.rr_list_by_type(RR_TYPE_NSEC3, ldns.LDNS_SECTION_AUTHORITY)
24285206Sdes    print("NSEC3s:", nsec3s)
25238106Sdes
26285206Sdes    print("---")
27238106Sdes
28238106Sdes
29238106Sdesresolver = ub_ctx()
30238106Sdesresolver.add_ta(".   IN DS   19036 8 2 49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5")
31238106Sdes
32238106SdesdnssecParse("nic.cz")
33238106SdesdnssecParse("nonexistent-domain-blablabla.cz")
34238106SdesdnssecParse("nonexistent-domain-blablabla.root.cz")
35238106Sdes
36