dnssec_test.py revision 285206 
1#!/usr/bin/env python
2from unbound import ub_ctx, RR_TYPE_A, RR_TYPE_RRSIG, RR_TYPE_NSEC, RR_TYPE_NSEC3
3import ldns
4
5def dnssecParse(domain, rrType=RR_TYPE_A):
6    print("Resolving domain", domain)
7    s, r = resolver.resolve(domain)
8    print("status: %s, secure: %s, rcode: %s, havedata: %s, answer_len; %s" % (s, r.secure, r.rcode_str, r.havedata, r.answer_len))
9
10    s, pkt = ldns.ldns_wire2pkt(r.packet)
11    if s != 0:
12        raise RuntimeError("Error parsing DNS packet")
13
14    rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_ANSWER)
15    print("RRSIGs from answer:", rrsigs)
16
17    rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_AUTHORITY)
18    print("RRSIGs from authority:", rrsigs)
19
20    nsecs = pkt.rr_list_by_type(RR_TYPE_NSEC, ldns.LDNS_SECTION_AUTHORITY)
21    print("NSECs:", nsecs)
22
23    nsec3s = pkt.rr_list_by_type(RR_TYPE_NSEC3, ldns.LDNS_SECTION_AUTHORITY)
24    print("NSEC3s:", nsec3s)
25
26    print("---")
27
28
29resolver = ub_ctx()
30resolver.add_ta(".   IN DS   19036 8 2 49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5")
31
32dnssecParse("nic.cz")
33dnssecParse("nonexistent-domain-blablabla.cz")
34dnssecParse("nonexistent-domain-blablabla.root.cz")
35
36