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\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// ############################################################################ # Copyright (C) Internet Systems Consortium, Inc. ("ISC") # # This Source Code Form is subject to the terms of the Mozilla Public # License, v. 2.0. If a copy of the MPL was not distributed with this # file, You can obtain one at http://mozilla.org/MPL/2.0/. # # See the COPYRIGHT file distributed with this work for additional # information regarding copyright ownership. ############################################################################ import argparse import os import sys from subprocess import Popen, PIPE from isc.utils import prefix,version prog = 'dnssec-checkds' ############################################################################ # SECRR class: # Class for DS/DLV resource record ############################################################################ class SECRR: hashalgs = {1: 'SHA-1', 2: 'SHA-256', 3: 'GOST', 4: 'SHA-384'} rrname = '' rrclass = 'IN' keyid = None keyalg = None hashalg = None digest = '' ttl = 0 def __init__(self, rrtext, dlvname = None): if not rrtext: raise Exception fields = rrtext.decode('ascii').split() if len(fields) < 7: raise Exception if dlvname: self.rrtype = "DLV" self.dlvname = dlvname.lower() parent = fields[0].lower().strip('.').split('.') parent.reverse() dlv = dlvname.split('.') dlv.reverse() while len(dlv) != 0 and len(parent) != 0 and parent[0] == dlv[0]: parent = parent[1:] dlv = dlv[1:] if dlv: raise Exception parent.reverse() self.parent = '.'.join(parent) self.rrname = self.parent + '.' + self.dlvname + '.' else: self.rrtype = "DS" self.rrname = fields[0].lower() fields = fields[1:] if fields[0].upper() in ['IN', 'CH', 'HS']: self.rrclass = fields[0].upper() fields = fields[1:] else: self.ttl = int(fields[0]) self.rrclass = fields[1].upper() fields = fields[2:] if fields[0].upper() != self.rrtype: raise Exception('%s does not match %s' % (fields[0].upper(), self.rrtype)) self.keyid, self.keyalg, self.hashalg = map(int, fields[1:4]) self.digest = ''.join(fields[4:]).upper() def __repr__(self): return '%s %s %s %d %d %d %s' % \ (self.rrname, self.rrclass, self.rrtype, self.keyid, self.keyalg, self.hashalg, self.digest) def __eq__(self, other): return self.__repr__() == other.__repr__() ############################################################################ # check: # Fetch DS/DLV RRset for the given zone from the DNS; fetch DNSKEY # RRset from the masterfile if specified, or from DNS if not. # Generate a set of expected DS/DLV records from the DNSKEY RRset, # and report on congruency. ############################################################################ def check(zone, args, masterfile=None, lookaside=None): rrlist = [] cmd = [args.dig, "+noall", "+answer", "-t", "dlv" if lookaside else "ds", "-q", zone + "." + lookaside if lookaside else zone] fp, _ = Popen(cmd, stdout=PIPE).communicate() for line in fp.splitlines(): rrlist.append(SECRR(line, lookaside)) rrlist = sorted(rrlist, key=lambda rr: (rr.keyid, rr.keyalg, rr.hashalg)) klist = [] if masterfile: cmd = [args.dsfromkey, "-f", masterfile] if lookaside: cmd += ["-l", lookaside] cmd.append(zone) fp, _ = Popen(cmd, stdout=PIPE).communicate() else: intods, _ = Popen([args.dig, "+noall", "+answer", "-t", "dnskey", "-q", zone], stdout=PIPE).communicate() cmd = [args.dsfromkey, "-f", "-"] if lookaside: cmd += ["-l", lookaside] cmd.append(zone) fp, _ = Popen(cmd, stdin=PIPE, stdout=PIPE).communicate(intods) for line in fp.splitlines(): klist.append(SECRR(line, lookaside)) if len(klist) < 1: print("No DNSKEY records found in zone apex") return False found = False for rr in klist: if rr in rrlist: print("%s for KSK %s/%03d/%05d (%s) found in parent" % (rr.rrtype, rr.rrname.strip('.'), rr.keyalg, rr.keyid, SECRR.hashalgs[rr.hashalg])) found = True else: print("%s for KSK %s/%03d/%05d (%s) missing from parent" % (rr.rrtype, rr.rrname.strip('.'), rr.keyalg, rr.keyid, SECRR.hashalgs[rr.hashalg])) if not found: print("No %s records were fou