]> git.ipfire.org Git - thirdparty/bind9.git/commitdiff
Update legacy-keys kasp test
authorMatthijs Mekking <matthijs@isc.org>
Tue, 26 Jan 2021 10:24:40 +0000 (11:24 +0100)
committerMatthijs Mekking <matthijs@isc.org>
Wed, 3 Feb 2021 07:35:56 +0000 (08:35 +0100)
The 'legacy-keys.kasp' test checks that a zone with key files but not
yet state files is signed correctly. This test is expanded to cover
the case where old key files still exist in the key directory. This
covers bug #2406 where keys with the "Delete" timing metadata are
picked up by the keymgr as active keys.

Fix the 'legacy-keys.kasp' test, by creating the right key files
(for zone 'legacy-keys.kasp', not 'legacy,kasp').

Use a unique policy for this zone, using shorter lifetimes.

Create two more keys for the zone, and use 'dnssec-settime' to set
the timing metadata in the past, long enough ago so that the keys
should not be considered by the keymgr.

Update the 'key_unused()' test function, and consider keys with
their "Delete" timing metadata in the past as unused.

Extend the test to ensure that the keys to be used are not the old
predecessor keys (with their "Delete" timing metadata in the past).

Update the test so that the checks performed are consistent with the
newly configured policy.

bin/tests/system/kasp/clean.sh
bin/tests/system/kasp/ns3/named.conf.in
bin/tests/system/kasp/ns3/policies/kasp.conf.in
bin/tests/system/kasp/ns3/setup.sh
bin/tests/system/kasp/tests.sh

index ab5890da77f802da53db4337be338de9ecbd812c..a6b8ee11241c8bb22a9a084c17815f8b51c79e4b 100644 (file)
@@ -25,7 +25,9 @@ rm -f ns*/managed-keys.bind
 rm -f ns*/*.mkeys
 rm -f ns*/zones ns*/*.db.infile
 rm -f ns*/*.zsk1 ns*/*.zsk2
+rm -f ns3/legacy-keys.*
 rm -f *.created published.test* retired.test*
 rm -f rndc.dnssec.*.out.*
 rm -f python.out.*
 rm -f *-supported.file
+rm -f created.key-* unused.key-*
index 3df661b4aed68a0dbdc4233c86da6b37ecf44aa1..cf454d6e9a520afc65b1d6ede2064eb8fa393150 100644 (file)
@@ -155,7 +155,7 @@ zone "some-keys.kasp" {
 zone "legacy-keys.kasp" {
        type primary;
        file "legacy-keys.kasp.db";
-       dnssec-policy "rsasha1";
+       dnssec-policy "migrate-to-dnssec-policy";
 };
 
 /*
index 823060630251ab5f516881f6f4b80627520d1421..825b21b1fa79ba3ac9638382cb448c9ca3d88176 100644 (file)
@@ -45,6 +45,15 @@ dnssec-policy "rsasha1" {
        };
 };
 
+dnssec-policy "migrate-to-dnssec-policy" {
+       dnskey-ttl 1234;
+
+       keys {
+               ksk key-directory lifetime P6M algorithm 5;
+               zsk key-directory lifetime P6M algorithm 5;
+       };
+};
+
 dnssec-policy "rsasha1-nsec3" {
        dnskey-ttl 1234;
 
index 521c1923290ab7485bd549336ceeda4e6988fa9a..dcfaee415781c3bc08649c0d3619c0f399da99e2 100644 (file)
@@ -87,9 +87,18 @@ zone="some-keys.kasp"
 $KEYGEN -G -a RSASHA1 -b 2000 -L 1234 $zone > keygen.out.$zone.1 2>&1
 $KEYGEN -G -a RSASHA1 -f KSK  -L 1234 $zone > keygen.out.$zone.2 2>&1
 
-zone="legacy.kasp"
-$KEYGEN -a RSASHA1 -b 2000 -L 1234 $zone > keygen.out.$zone.1 2>&1
-$KEYGEN -a RSASHA1 -f KSK  -L 1234 $zone > keygen.out.$zone.2 2>&1
+zone="legacy-keys.kasp"
+ZSK=$($KEYGEN -a RSASHA1 -b 2048 -L 1234 $zone 2> keygen.out.$zone.1)
+KSK=$($KEYGEN -a RSASHA1 -f KSK  -L 1234 $zone 2> keygen.out.$zone.2)
+echo $ZSK > legacy-keys.kasp.zsk
+echo $KSK > legacy-keys.kasp.ksk
+# Predecessor keys:
+Tact="now-9mo"
+Tret="now-3mo"
+ZSK=$($KEYGEN -a RSASHA1 -b 2048 -L 1234 $zone 2> keygen.out.$zone.3)
+KSK=$($KEYGEN -a RSASHA1 -f KSK  -L 1234 $zone 2> keygen.out.$zone.4)
+$SETTIME -P $Tact -A $Tact -I $Tret -D $Tret "$ZSK"  > settime.out.$zone.1 2>&1
+$SETTIME -P $Tact -A $Tact -I $Tret -D $Tret "$KSK"  > settime.out.$zone.2 2>&1
 
 zone="pregenerated.kasp"
 $KEYGEN -G -k rsasha1 -l policies/kasp.conf $zone > keygen.out.$zone.1 2>&1
index 4519717fa68929968a8d6706f03a05a094fd2df8..8b1fb3bd75805f05df0dd334e0eaa1a6a98eaf3f 100644 (file)
@@ -587,7 +587,17 @@ key_unused() {
        [ -s "$STATE_FILE" ] || ret=1
        [ "$ret" -eq 0 ] || return
 
-       # Check timing metadata.
+       # Treat keys that have been removed from the zone as unused.
+       _check_removed=1
+       grep "; Created:" "$KEY_FILE" > created.key-${KEY_ID}.test${n} || _check_removed=0
+       grep "; Delete:" "$KEY_FILE" > unused.key-${KEY_ID}.test${n} || _check_removed=0
+       if [ "$_check_removed" -eq 1 ]; then
+               _created=$(awk '{print $3}' < created.key-${KEY_ID}.test${n})
+               _removed=$(awk '{print $3}' < unused.key-${KEY_ID}.test${n})
+               [ "$_removed" -le "$_created" ] && return
+       fi
+
+       # If no timing metadata is set, this key is unused.
        grep "; Publish:" "$KEY_FILE" > /dev/null && log_error "unexpected publish comment in $KEY_FILE"
        grep "; Activate:" "$KEY_FILE" > /dev/null && log_error "unexpected active comment in $KEY_FILE"
        grep "; Inactive:" "$KEY_FILE" > /dev/null && log_error "unexpected retired comment in $KEY_FILE"
@@ -600,13 +610,11 @@ key_unused() {
        grep "Revoke:" "$PRIVATE_FILE" > /dev/null && log_error "unexpected revoked in $PRIVATE_FILE"
        grep "Delete:" "$PRIVATE_FILE" > /dev/null && log_error "unexpected removed in $PRIVATE_FILE"
 
-       if [ "$_legacy" = "no" ]; then
-               grep "Published: " "$STATE_FILE" > /dev/null && log_error "unexpected publish in $STATE_FILE"
-               grep "Active: " "$STATE_FILE" > /dev/null && log_error "unexpected active in $STATE_FILE"
-               grep "Retired: " "$STATE_FILE" > /dev/null && log_error "unexpected retired in $STATE_FILE"
-               grep "Revoked: " "$STATE_FILE" > /dev/null && log_error "unexpected revoked in $STATE_FILE"
-               grep "Removed: " "$STATE_FILE" > /dev/null && log_error "unexpected removed in $STATE_FILE"
-       fi
+       grep "Published: " "$STATE_FILE" > /dev/null && log_error "unexpected publish in $STATE_FILE"
+       grep "Active: " "$STATE_FILE" > /dev/null && log_error "unexpected active in $STATE_FILE"
+       grep "Retired: " "$STATE_FILE" > /dev/null && log_error "unexpected retired in $STATE_FILE"
+       grep "Revoked: " "$STATE_FILE" > /dev/null && log_error "unexpected revoked in $STATE_FILE"
+       grep "Removed: " "$STATE_FILE" > /dev/null && log_error "unexpected removed in $STATE_FILE"
 }
 
 # Test: dnssec-verify zone $1.
@@ -1902,22 +1910,6 @@ check_apex
 check_subdomain
 dnssec_verify
 
-#
-# Zone: legacy-keys.kasp.
-#
-set_zone "legacy-keys.kasp"
-set_policy "rsasha1" "3" "1234"
-set_server "ns3" "10.53.0.3"
-# Key properties, timings and states same as above.
-
-check_keys
-check_dnssecstatus "$SERVER" "$POLICY" "$ZONE"
-set_keytimes_algorithm_policy
-check_keytimes
-check_apex
-check_subdomain
-dnssec_verify
-
 #
 # Zone: pregenerated.kasp.
 #
@@ -2407,6 +2399,102 @@ check_subdomain
 dnssec_verify
 check_rrsig_refresh
 
+#
+# Zone: legacy-keys.kasp.
+#
+set_zone "legacy-keys.kasp"
+# This zone has two active keys and two old keys left in key directory, so
+# expect 4 key files.
+set_policy "migrate-to-dnssec-policy" "4" "1234"
+set_server "ns3" "10.53.0.3"
+
+# Key properties.
+key_clear        "KEY1"
+set_keyrole      "KEY1" "ksk"
+set_keylifetime  "KEY1" "16070400"
+set_keyalgorithm "KEY1" "5" "RSASHA1" "2048"
+set_keysigning   "KEY1" "yes"
+set_zonesigning  "KEY1" "no"
+
+key_clear        "KEY2"
+set_keyrole      "KEY2" "zsk"
+set_keylifetime  "KEY2" "16070400"
+set_keyalgorithm "KEY2" "5" "RSASHA1" "2048"
+set_keysigning   "KEY2" "no"
+set_zonesigning  "KEY2" "yes"
+# KSK: DNSKEY, RRSIG (ksk) published. DS needs to wait.
+# ZSK: DNSKEY, RRSIG (zsk) published.
+set_keystate "KEY1" "GOAL"         "omnipresent"
+set_keystate "KEY1" "STATE_DNSKEY" "rumoured"
+set_keystate "KEY1" "STATE_KRRSIG" "rumoured"
+set_keystate "KEY1" "STATE_DS"     "hidden"
+
+set_keystate "KEY2" "GOAL"         "omnipresent"
+set_keystate "KEY2" "STATE_DNSKEY" "rumoured"
+set_keystate "KEY2" "STATE_ZRRSIG" "rumoured"
+# Two keys only.
+key_clear "KEY3"
+key_clear "KEY4"
+
+check_keys
+check_dnssecstatus "$SERVER" "$POLICY" "$ZONE"
+
+# Make sure the correct legacy keys were used (and not the removed predecessor
+# keys).
+n=$((n+1))
+echo_i "check correct keys were used when migrating zone ${ZONE} to dnssec-policy ($n)"
+ret=0
+kskfile=$(cat ns3/legacy-keys.kasp.ksk)
+basefile=$(key_get KEY1 BASEFILE)
+echo_i "filename: $basefile (expect $kskfile)"
+test "$DIR/$kskfile" = "$basefile" || ret=1
+zskfile=$(cat ns3/legacy-keys.kasp.zsk)
+basefile=$(key_get KEY2 BASEFILE)
+echo_i "filename: $basefile (expect $zskfile)"
+test "$DIR/$zskfile" = "$basefile" || ret=1
+test "$ret" -eq 0 || echo_i "failed"
+status=$((status+ret))
+
+# KSK times.
+created=$(key_get KEY1 CREATED)
+keyfile=$(key_get KEY1 BASEFILE)
+grep "; Publish:" "${keyfile}.key" > published.test${n}.key1
+published=$(awk '{print $3}' < published.test${n}.key1)
+set_keytime "KEY1" "PUBLISHED" "${published}"
+set_keytime "KEY1" "ACTIVE"    "${published}"
+published=$(key_get KEY1 PUBLISHED)
+# The DS can be published if the DNSKEY and RRSIG records are OMNIPRESENT.
+#  This happens after max-zone-ttl (1d) plus publish-safety (1h) plus
+# zone-propagation-delay (300s) = 86400 + 3600 + 300 = 90300.
+set_addkeytime "KEY1" "SYNCPUBLISH" "${published}" 90300
+# Key lifetime is 6 months, 315360000 seconds.
+set_addkeytime "KEY1" "RETIRED"     "${published}" 16070400
+# The key is removed after the retire time plus DS TTL (1d), parent
+# propagation delay (1h), and retire safety (1h) = 86400 + 3600 + 3600 = 93600.
+retired=$(key_get KEY1 RETIRED)
+set_addkeytime "KEY1" "REMOVED"     "${retired}"   93600
+
+# ZSK times.
+created=$(key_get KEY2 CREATED)
+keyfile=$(key_get KEY2 BASEFILE)
+grep "; Publish:" "${keyfile}.key" > published.test${n}.key2
+published=$(awk '{print $3}' < published.test${n}.key2)
+set_keytime "KEY2" "PUBLISHED" "${published}"
+set_keytime "KEY2" "ACTIVE"    "${published}"
+published=$(key_get KEY2 PUBLISHED)
+# Key lifetime is 6 months, 315360000 seconds.
+set_addkeytime "KEY2" "RETIRED"     "${published}" 16070400
+# The key is removed after the retire time plus max zone ttl (1d), zone
+# propagation delay (300s), retire safety (1h), and sign delay (signature
+# validity minus refresh, 9d) = 86400 + 300 + 3600 + 777600 = 867900.
+retired=$(key_get KEY2 RETIRED)
+set_addkeytime "KEY2" "REMOVED"   "${retired}"   867900
+
+check_keytimes
+check_apex
+check_subdomain
+dnssec_verify
+
 #
 # Test dnssec-policy inheritance.
 #