diff options
Diffstat (limited to 'contrib/kasp')
-rw-r--r-- | contrib/kasp/README | 11 | ||||
-rw-r--r-- | contrib/kasp/kasp.xml | 146 | ||||
-rw-r--r-- | contrib/kasp/kasp2policy.py | 223 | ||||
-rw-r--r-- | contrib/kasp/policy.good | 24 |
4 files changed, 404 insertions, 0 deletions
diff --git a/contrib/kasp/README b/contrib/kasp/README new file mode 100644 index 0000000..fb897f1 --- /dev/null +++ b/contrib/kasp/README @@ -0,0 +1,11 @@ +This directory is for tools and scripts related to the OpenDNSSEC KASP +("key and signature policy") format. Currently it only contains +"kasp2policy.py", a python script for converting KASP key policy +to the "dnssec.policy" format that is used by dnssec-keymgr. + +This depends on PLY (python lex/yacc) and on the "isc.dnskey" module in +bin/python/isc. + +Basic test: +$ python kasp2policy.py kasp.xml > policy.out +$ diff policy.out policy.good diff --git a/contrib/kasp/kasp.xml b/contrib/kasp/kasp.xml new file mode 100644 index 0000000..a92d096 --- /dev/null +++ b/contrib/kasp/kasp.xml @@ -0,0 +1,146 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- +Copyright (C) Internet Systems Consortium, Inc. ("ISC") + +SPDX-License-Identifier: MPL-2.0 + +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 https://mozilla.org/MPL/2.0/. + +See the COPYRIGHT file distributed with this work for additional +information regarding copyright ownership. +--> + +<!-- Sample KASP file to use for testing kasp2policy.py. --> +<KASP> + <Policy name="Policy1"> + <Description>A default policy that will + amaze you and your friends</Description> + <Signatures> + <Resign>PT5M</Resign> + <Refresh>PT5M</Refresh> + <Validity> + <Default>PT15M</Default> + <Denial>PT15M</Denial> + </Validity> + <Jitter>PT2M</Jitter> + <InceptionOffset>PT1M</InceptionOffset> + </Signatures> + + <Denial> + <NSEC> + </NSEC> + </Denial> + + <Keys> + <!-- Parameters for both KSK and ZSK --> + <TTL>PT1M</TTL> + <RetireSafety>PT0S</RetireSafety> + <PublishSafety>PT0S</PublishSafety> + + <!-- Parameters for KSK only --> + <KSK> + <Algorithm length="2048">5</Algorithm> + <Lifetime>PT40M</Lifetime> + <Repository>softHSM</Repository> + <Standby>1</Standby> + </KSK> + + <!-- Parameters for ZSK only --> + <ZSK> + <Algorithm length="2048">5</Algorithm> + <Lifetime>PT25M</Lifetime> + <Repository>softHSM</Repository> + <Standby>1</Standby> + </ZSK> + </Keys> + + <Zone> + <PropagationDelay>PT0S</PropagationDelay> + <SOA> + <TTL>PT0S</TTL> + <Minimum>PT0S</Minimum> + <Serial>unixtime</Serial> + </SOA> + </Zone> + + <Parent> + <PropagationDelay>PT8M</PropagationDelay> + <DS> + <TTL>PT0S</TTL> + </DS> + <SOA> + <TTL>PT0S</TTL> + <Minimum>PT0S</Minimum> + </SOA> + </Parent> + </Policy> + <Policy name="Policy2"> + <Description>A default policy that will amaze you and your friends</Description> + <Signatures> + <Resign>PT7M</Resign> + <Refresh>PT7M</Refresh> + <Validity> + <Default>PT15M</Default> + <Denial>PT16M</Denial> + </Validity> + <Jitter>PT2M</Jitter> + <InceptionOffset>PT1M</InceptionOffset> + </Signatures> + + <Denial> + <NSEC3> + <Resalt>P120D</Resalt> + <Hash> + <Algorithm>1</Algorithm> + <Iterations>5</Iterations> + <Salt length="8"/> + </Hash> + </NSEC3> + </Denial> + + <Keys> + <!-- Parameters for both KSK and ZSK --> + <TTL>PT15M</TTL> + <RetireSafety>PT0S</RetireSafety> + <PublishSafety>PT0S</PublishSafety> + + <!-- Parameters for KSK only --> + <KSK> + <Algorithm length="2048">7</Algorithm> + <Lifetime>PT45M</Lifetime> + <Repository>softHSM</Repository> + <Standby>1</Standby> + </KSK> + + <!-- Parameters for ZSK only --> + <ZSK> + <Algorithm length="2048">7</Algorithm> + <Lifetime>PT25M</Lifetime> + <Repository>softHSM</Repository> + <Standby>1</Standby> + </ZSK> + </Keys> + + <Zone> + <PropagationDelay>PT0S</PropagationDelay> + <SOA> + <TTL>PT0S</TTL> + <Minimum>PT0S</Minimum> + <Serial>unixtime</Serial> + </SOA> + </Zone> + + <Parent> + <PropagationDelay>PT12M</PropagationDelay> + <DS> + <TTL>PT0S</TTL> + </DS> + <SOA> + <TTL>PT0S</TTL> + <Minimum>PT0S</Minimum> + </SOA> + </Parent> + </Policy> +</KASP> diff --git a/contrib/kasp/kasp2policy.py b/contrib/kasp/kasp2policy.py new file mode 100644 index 0000000..a2536a7 --- /dev/null +++ b/contrib/kasp/kasp2policy.py @@ -0,0 +1,223 @@ +#!/usr/bin/python + +# Copyright (C) 2015 Internet Systems Consortium, Inc. ("ISC") +# Copyright (C) Internet Systems Consortium, Inc. ("ISC") +# +# SPDX-License-Identifier: MPL-2.0 +# +# 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 https://mozilla.org/MPL/2.0/. +# +# See the COPYRIGHT file distributed with this work for additional +# information regarding copyright ownership. + +from xml.etree import cElementTree as ET +from collections import defaultdict +import re +from ply import yacc +from ply import lex +from isc import dnskey + + +############################################################################ +# Translate KASP duration values into seconds +############################################################################ +class KaspTime: + # pylint: disable=invalid-name + class KTLex: + # pylint: disable=invalid-name + + tokens = ("P", "T", "Y", "M", "D", "H", "S", "NUM") + + t_P = r"(?i)P" + t_T = r"(?i)T" + t_Y = r"(?i)Y" + t_M = r"(?i)M" + t_D = r"(?i)D" + t_H = r"(?i)H" + t_S = r"(?i)S" + + @staticmethod + def t_NUM(t): + r"\d+" + t.value = int(t.value) + return t + + @staticmethod + def t_error(t): + print("Illegal character '%s'" % t.value[0]) + t.lexer.skip(1) + + def __init__(self): + self.lexer = lex.lex(object=self) + + def __init__(self): + self.lexer = self.KTLex() + self.tokens = self.lexer.tokens + self.parser = yacc.yacc(debug=False, write_tables=False, module=self) + + def parse(self, text): + self.lexer.lexer.lineno = 0 + return self.parser.parse(text) + + @staticmethod + def p_ktime_4(p): + "ktime : P periods T times" + p[0] = p[2] + p[4] + + @staticmethod + def p_ktime_3(p): + "ktime : P T times" + p[0] = p[3] + + @staticmethod + def p_ktime_2(p): + "ktime : P periods" + p[0] = p[2] + + @staticmethod + def p_periods_1(p): + "periods : period" + p[0] = p[1] + + @staticmethod + def p_periods_2(p): + "periods : periods period" + p[0] = p[1] + p[2] + + @staticmethod + def p_times_1(p): + "times : time" + p[0] = p[1] + + @staticmethod + def p_times_2(p): + "times : times time" + p[0] = p[1] + p[2] + + @staticmethod + def p_period(p): + """period : NUM Y + | NUM M + | NUM D""" + if p[2].lower() == "y": + p[0] = int(p[1]) * 31536000 + elif p[2].lower() == "m": + p[0] = int(p[1]) * 2592000 + elif p[2].lower() == "d": + p[0] += int(p[1]) * 86400 + + @staticmethod + def p_time(p): + """time : NUM H + | NUM M + | NUM S""" + if p[2].lower() == "h": + p[0] = int(p[1]) * 3600 + elif p[2].lower() == "m": + p[0] = int(p[1]) * 60 + elif p[2].lower() == "s": + p[0] = int(p[1]) + + @staticmethod + def p_error(): + print("Syntax error") + + +############################################################################ +# Load the contents of a KASP XML file as a python dictionary +############################################################################ +class Kasp: + # pylint: disable=invalid-name + + @staticmethod + def _todict(t): + d = {t.tag: {} if t.attrib else None} + children = list(t) + if children: + dd = defaultdict(list) + for dc in map(Kasp._todict, children): + for k, v in dc.iteritems(): + dd[k].append(v) + k = {k: v[0] if len(v) == 1 else v for k, v in dd.items()} + d = {t.tag: k} + if t.attrib: + d[t.tag].update(("@" + k, v) for k, v in t.attrib.iteritems()) + if t.text: + text = t.text.strip() + if children or t.attrib: + if text: + d[t.tag]["#text"] = text + else: + d[t.tag] = text + return d + + def __init__(self, filename): + self._dict = Kasp._todict(ET.parse(filename).getroot()) + + def __getitem__(self, key): + return self._dict[key] + + def __len__(self): + return len(self._dict) + + def __iter__(self): + return self._dict.__iter__() + + def __repr__(self): + return repr(self._dict) + + +############################################################################ +# Load the contents of a KASP XML file as a python dictionary +############################################################################ +if __name__ == "__main__": + import sys + + if len(sys.argv) < 2: + print("Usage: kasp2policy <filename>") + sys.exit(1) + + KINFO = Kasp(sys.argv[1]) + try: + KINFO = Kasp(sys.argv[1]) + except FileNotFoundError: + print("%s: unable to load KASP file '%s'" % (sys.argv[0], sys.argv[1])) + sys.exit(1) + + KT = KaspTime() + FIRST = True + + for policy in KINFO["KASP"]["Policy"]: + if not policy["@name"] or not policy["Keys"]: + continue + if not FIRST: + print("") + FIRST = False + if policy["Description"]: + desc = policy["Description"].strip() + print("# %s" % re.sub(r"\n\s*", "\n# ", desc)) + print("policy %s {" % policy["@name"]) + ksk = policy["Keys"]["KSK"] + zsk = policy["Keys"]["ZSK"] + kalg = ksk["Algorithm"] + zalg = zsk["Algorithm"] + algnum = kalg["#text"] or zalg["#text"] + if algnum: + print("\talgorithm %s;" % dnskey.algstr(int(algnum))) + if policy["Keys"]["TTL"]: + print("\tkeyttl %d;" % KT.parse(policy["Keys"]["TTL"])) + if kalg["@length"]: + print("\tkey-size ksk %d;" % int(kalg["@length"])) + if zalg["@length"]: + print("\tkey-size zsk %d;" % int(zalg["@length"])) + if ksk["Lifetime"]: + print("\troll-period ksk %d;" % KT.parse(ksk["Lifetime"])) + if zsk["Lifetime"]: + print("\troll-period zsk %d;" % KT.parse(zsk["Lifetime"])) + if ksk["Standby"]: + print("\tstandby ksk %d;" % int(ksk["Standby"])) + if zsk["Standby"]: + print("\tstandby zsk %d;" % int(zsk["Standby"])) + print("};") diff --git a/contrib/kasp/policy.good b/contrib/kasp/policy.good new file mode 100644 index 0000000..18c6360 --- /dev/null +++ b/contrib/kasp/policy.good @@ -0,0 +1,24 @@ +# A default policy that will +# amaze you and your friends +policy Policy1 { + algorithm RSASHA1; + keyttl 60; + key-size ksk 2048; + key-size zsk 2048; + roll-period ksk 2400; + roll-period zsk 1500; + standby ksk 1; + standby zsk 1; +}; + +# A default policy that will amaze you and your friends +policy Policy2 { + algorithm NSEC3RSASHA1; + keyttl 900; + key-size ksk 2048; + key-size zsk 2048; + roll-period ksk 2700; + roll-period zsk 1500; + standby ksk 1; + standby zsk 1; +}; |