mirror of
https://gitlab.isc.org/isc-projects/bind9
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217 lines
8.8 KiB
Bash
217 lines
8.8 KiB
Bash
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#!/bin/sh -e
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# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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#
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# SPDX-License-Identifier: MPL-2.0
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, you can obtain one at https://mozilla.org/MPL/2.0/.
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#
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# See the COPYRIGHT file distributed with this work for additional
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# information regarding copyright ownership.
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# shellcheck source=conf.sh
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. ../conf.sh
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cd "ns3"
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setup() {
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zone="$1"
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echo_i "setting up zone: $zone"
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zonefile="${zone}.db"
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infile="${zone}.db.infile"
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echo "$zone" >>zones
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}
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# Set in the key state files the Predecessor/Successor fields.
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# Key $1 is the predecessor of key $2.
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key_successor() {
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id1=$(keyfile_to_key_id "$1")
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id2=$(keyfile_to_key_id "$2")
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echo "Predecessor: ${id1}" >>"${2}.state"
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echo "Successor: ${id2}" >>"${1}.state"
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}
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# Make lines shorter by storing key states in environment variables.
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H="HIDDEN"
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R="RUMOURED"
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O="OMNIPRESENT"
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U="UNRETENTIVE"
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#
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# The zones at zsk-prepub.autosign represent the various steps of a ZSK
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# Pre-Publication rollover.
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#
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# Step 1:
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# Introduce the first key. This will immediately be active.
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setup step1.zsk-prepub.autosign
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TactN="now-7d"
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keytimes="-P ${TactN} -A ${TactN}"
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KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $keytimes $zone 2>keygen.out.$zone.1)
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ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $keytimes $zone 2>keygen.out.$zone.2)
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$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" >settime.out.$zone.1 2>&1
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$SETTIME -s -g $O -k $O $TactN -z $O $TactN "$ZSK" >settime.out.$zone.2 2>&1
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cat template.db.in "${KSK}.key" "${ZSK}.key" >"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >>"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >>"$infile"
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cp $infile $zonefile
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$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile >signer.out.$zone.1 2>&1
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# Step 2:
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# It is time to pre-publish the successor ZSK.
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setup step2.zsk-prepub.autosign
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# According to RFC 7583:
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# Tact(N) = now + Ipub - Lzsk = now + 26h - 30d
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# = now + 26h - 30d = now − 694h
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TactN="now-694h"
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keytimes="-P ${TactN} -A ${TactN}"
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KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $keytimes $zone 2>keygen.out.$zone.1)
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ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $keytimes $zone 2>keygen.out.$zone.2)
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$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" >settime.out.$zone.1 2>&1
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$SETTIME -s -g $O -k $O $TactN -z $O $TactN "$ZSK" >settime.out.$zone.2 2>&1
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cat template.db.in "${KSK}.key" "${ZSK}.key" >"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >>"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >>"$infile"
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cp $infile $zonefile
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$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile >signer.out.$zone.1 2>&1
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# Step 3:
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# After the publication interval has passed the DNSKEY of the successor ZSK
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# is OMNIPRESENT and the zone can thus be signed with the successor ZSK.
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setup step3.zsk-prepub.autosign
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# According to RFC 7583:
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# Tpub(N+1) <= Tact(N) + Lzsk - Ipub
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# Tact(N+1) = Tact(N) + Lzsk
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#
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# Tact(N) = now - Lzsk = now - 30d
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# Tpub(N+1) = now - Ipub = now - 26h
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# Tact(N+1) = now
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# Tret(N) = now
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# Trem(N) = now + Iret = now + Dsign + Dprp + TTLsig + retire-safety = 8d1h = now + 241h
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TactN="now-30d"
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TpubN1="now-26h"
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TactN1="now"
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TremN="now+241h"
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keytimes="-P ${TactN} -A ${TactN}"
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oldtimes="-P ${TactN} -A ${TactN} -I ${TactN1} -D ${TremN}"
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newtimes="-P ${TpubN1} -A ${TactN1}"
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KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $keytimes $zone 2>keygen.out.$zone.1)
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ZSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $oldtimes $zone 2>keygen.out.$zone.2)
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ZSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $newtimes $zone 2>keygen.out.$zone.3)
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$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" >settime.out.$zone.1 2>&1
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$SETTIME -s -g $H -k $O $TactN -z $O $TactN "$ZSK1" >settime.out.$zone.2 2>&1
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$SETTIME -s -g $O -k $R $TpubN1 -z $H $TpubN1 "$ZSK2" >settime.out.$zone.3 2>&1
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# Set key rollover relationship.
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key_successor $ZSK1 $ZSK2
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# Sign zone.
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cat template.db.in "${KSK}.key" "${ZSK1}.key" "${ZSK2}.key" >"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >>"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK1" >>"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK2" >>"$infile"
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cp $infile $zonefile
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$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile >signer.out.$zone.1 2>&1
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# Step 4:
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# After the retire interval has passed the predecessor DNSKEY can be
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# removed from the zone.
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setup step4.zsk-prepub.autosign
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# Lzsk: 30d
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# Ipub: 26h
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# Dsgn: 1w
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# Dprp: 1h
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# TTLsig: 1d
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# retire-safety: 2d
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#
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# According to RFC 7583:
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# Iret = Dsgn + Dprp + TTLsig (+retire-safety)
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# Iret = 1w + 1h + 1d + 2d = 10d1h = 241h
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#
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# Tact(N) = now - Iret - Lzsk
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# = now - 241h - 30d = now - 241h - 720h
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# = now - 961h
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# Tpub(N+1) = now - Iret - Ipub
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# = now - 241h - 26h
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# = now - 267h
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# Tact(N+1) = now - Iret = now - 241h
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TactN="now-961h"
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TpubN1="now-267h"
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TactN1="now-241h"
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TremN="now"
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keytimes="-P ${TactN} -A ${TactN}"
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oldtimes="-P ${TactN} -A ${TactN} -I ${TactN1} -D ${TremN}"
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newtimes="-P ${TpubN1} -A ${TactN1}"
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KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $keytimes $zone 2>keygen.out.$zone.1)
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ZSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $oldtimes $zone 2>keygen.out.$zone.2)
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ZSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $newtimes $zone 2>keygen.out.$zone.3)
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$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" >settime.out.$zone.1 2>&1
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$SETTIME -s -g $H -k $O $TactN -z $U $TactN1 "$ZSK1" >settime.out.$zone.2 2>&1
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$SETTIME -s -g $O -k $O $TactN1 -z $R $TactN1 "$ZSK2" >settime.out.$zone.3 2>&1
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# Set key rollover relationship.
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key_successor $ZSK1 $ZSK2
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# Sign zone.
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cat template.db.in "${KSK}.key" "${ZSK1}.key" "${ZSK2}.key" >"$infile"
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cp $infile $zonefile
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$SIGNER -PS -x -s now-2w -e now-1mi -o $zone -O raw -f "${zonefile}.signed" $infile >signer.out.$zone.1 2>&1
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# Step 5:
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# The predecessor DNSKEY is removed long enough that is has become HIDDEN.
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setup step5.zsk-prepub.autosign
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# Subtract DNSKEY TTL + zone-propagation-delay from all the times (2h).
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# Tact(N) = now - 961h - 2h = now - 963h
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# Tpub(N+1) = now - 267h - 2h = now - 269h
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# Tact(N+1) = now - 241h - 2h = now - 243h
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# Trem(N) = Tact(N+1) + Iret = now -2h
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TactN="now-963h"
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TremN="now-2h"
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TpubN1="now-269h"
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TactN1="now-243h"
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TremN="now-2h"
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keytimes="-P ${TactN} -A ${TactN}"
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oldtimes="-P ${TactN} -A ${TactN} -I ${TactN1} -D ${TremN}"
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newtimes="-P ${TpubN1} -A ${TactN1}"
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KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $keytimes $zone 2>keygen.out.$zone.1)
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ZSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $oldtimes $zone 2>keygen.out.$zone.2)
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ZSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $newtimes $zone 2>keygen.out.$zone.3)
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$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" >settime.out.$zone.1 2>&1
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$SETTIME -s -g $H -k $U $TremN -z $H $TremN "$ZSK1" >settime.out.$zone.2 2>&1
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$SETTIME -s -g $O -k $O $TactN1 -z $O $TremN "$ZSK2" >settime.out.$zone.3 2>&1
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# Set key rollover relationship.
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key_successor $ZSK1 $ZSK2
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# Sign zone.
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cat template.db.in "${KSK}.key" "${ZSK1}.key" "${ZSK2}.key" >"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >>"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK1" >>"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK2" >>"$infile"
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cp $infile $zonefile
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$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile >signer.out.$zone.1 2>&1
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# Step 6:
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# The predecessor DNSKEY can be purged.
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setup step6.zsk-prepub.autosign
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# Subtract purge-keys interval from all the times (1h).
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TactN="now-964h"
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TremN="now-3h"
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TpubN1="now-270h"
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TactN1="now-244h"
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TremN="now-3h"
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keytimes="-P ${TactN} -A ${TactN}"
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oldtimes="-P ${TactN} -A ${TactN} -I ${TactN1} -D ${TremN}"
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newtimes="-P ${TpubN1} -A ${TactN1}"
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KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $keytimes $zone 2>keygen.out.$zone.1)
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ZSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $oldtimes $zone 2>keygen.out.$zone.2)
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ZSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 $newtimes $zone 2>keygen.out.$zone.3)
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$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" >settime.out.$zone.1 2>&1
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$SETTIME -s -g $H -k $H $TremN -z $H $TremN "$ZSK1" >settime.out.$zone.2 2>&1
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$SETTIME -s -g $O -k $O $TactN1 -z $O $TremN "$ZSK2" >settime.out.$zone.3 2>&1
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# Set key rollover relationship.
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key_successor $ZSK1 $ZSK2
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# Sign zone.
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cat template.db.in "${KSK}.key" "${ZSK1}.key" "${ZSK2}.key" >"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >>"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK1" >>"$infile"
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private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK2" >>"$infile"
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cp $infile $zonefile
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$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile >signer.out.$zone.1 2>&1
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