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36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
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#!/usr/bin/env python
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from unbound import ub_ctx, RR_TYPE_A, RR_TYPE_RRSIG, RR_TYPE_NSEC, RR_TYPE_NSEC3
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import ldns
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def dnssecParse(domain, rrType=RR_TYPE_A):
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print("Resolving domain", domain)
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s, r = resolver.resolve(domain)
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print("status: %s, secure: %s, rcode: %s, havedata: %s, answer_len; %s" % (s, r.secure, r.rcode_str, r.havedata, r.answer_len))
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s, pkt = ldns.ldns_wire2pkt(r.packet)
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if s != 0:
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raise RuntimeError("Error parsing DNS packet")
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rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_ANSWER)
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print("RRSIGs from answer:", rrsigs)
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rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_AUTHORITY)
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print("RRSIGs from authority:", rrsigs)
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nsecs = pkt.rr_list_by_type(RR_TYPE_NSEC, ldns.LDNS_SECTION_AUTHORITY)
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print("NSECs:", nsecs)
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nsec3s = pkt.rr_list_by_type(RR_TYPE_NSEC3, ldns.LDNS_SECTION_AUTHORITY)
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print("NSEC3s:", nsec3s)
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print("---")
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resolver = ub_ctx()
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resolver.add_ta(". IN DS 19036 8 2 49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5")
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dnssecParse("nic.cz")
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dnssecParse("nonexistent-domain-blablabla.cz")
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dnssecParse("nonexistent-domain-blablabla.root.cz")
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