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") 32resolver.add_ta(". IN DS 20326 8 2 E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC683457104237C7F8EC8D") 33 34dnssecParse("nic.cz") 35dnssecParse("nonexistent-domain-blablabla.cz") 36dnssecParse("nonexistent-domain-blablabla.root.cz") 37 38