def result2pkt(result):
"""Extract ldns packet from ub_result.
@raises DnsError: on malformed packet
"""
status, pkt = ldns.ldns_wire2pkt(result.packet)
if status != 0:
raise DnsError("Failed to parse DNS packet: %s" % ldns.ldns_get_errorstr_by_id(status))
return pkt
def dnssecParse(domain, rrType=RR_TYPE_A):
print("Resolving domain", domain)
s, r = resolver.resolve(domain)
print("status: %s, secure: %s, rcode: %s, havedata: %s, answer_len; %s" % (s, r.secure, r.rcode_str, r.havedata, r.answer_len))
s, pkt = ldns.ldns_wire2pkt(r.packet)
if s != 0:
raise RuntimeError("Error parsing DNS packet")
rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_ANSWER)
print("RRSIGs from answer:", sorted(rrsigs))
rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_AUTHORITY)
print("RRSIGs from authority:", sorted(rrsigs))
nsecs = pkt.rr_list_by_type(RR_TYPE_NSEC, ldns.LDNS_SECTION_AUTHORITY)
print("NSECs:", sorted(nsecs))
nsec3s = pkt.rr_list_by_type(RR_TYPE_NSEC3, ldns.LDNS_SECTION_AUTHORITY)
print("NSEC3s:", sorted(nsec3s))
print("---")
def dnssecParse(domain, rrType=RR_TYPE_A):
print("Resolving domain", domain)
s, r = resolver.resolve(domain)
print("status: %s, secure: %s, rcode: %s, havedata: %s, answer_len; %s" % (s, r.secure, r.rcode_str, r.havedata, r.answer_len))
s, pkt = ldns.ldns_wire2pkt(r.packet)
if s != 0:
raise RuntimeError("Error parsing DNS packet")
rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_ANSWER)
print("RRSIGs from answer:", sorted(rrsigs))
rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_AUTHORITY)
print("RRSIGs from authority:", sorted(rrsigs))
nsecs = pkt.rr_list_by_type(RR_TYPE_NSEC, ldns.LDNS_SECTION_AUTHORITY)
print("NSECs:", sorted(nsecs))
nsec3s = pkt.rr_list_by_type(RR_TYPE_NSEC3, ldns.LDNS_SECTION_AUTHORITY)
print("NSEC3s:", sorted(nsec3s))
print("---")
