268 lines
11 KiB
Bash
268 lines
11 KiB
Bash
#!/bin/sh
|
|
# SPDX-License-Identifier: GPL-3.0
|
|
#
|
|
# freifunk-franken dns-scipts (c) 2016 mayosemmel
|
|
# (c) 2020-2021 Fabian Bläse
|
|
# (c) 2021 Blackyfff
|
|
|
|
# exit script when command fails
|
|
set -e
|
|
|
|
. /etc/ffdns/community.conf
|
|
. /etc/ffdns/local.conf
|
|
|
|
export DNSSCRIPT_CONTACT_EMAIL
|
|
export DNSSCRIPT_SERVER_NAME
|
|
export DNSSCRIPT_BIND_RELOAD_VER
|
|
|
|
cd /usr/lib/ffdns/
|
|
. ./dns-functions.sh
|
|
|
|
MasterDomain="$CommunityDomain"
|
|
[ -z "$SubCommunityDomain" ] || MasterDomain="$SubCommunityDomain"".""$MasterDomain"
|
|
if [ -n "$CommunityExternPrefix" ];then
|
|
MasterExternDomain="$CommunityExternPrefix"".""$CommunityDomain"
|
|
[ -z "$SubCommunityDomain" ] || MasterExternDomain="$SubCommunityDomain"".""$MasterExternDomain"
|
|
fi
|
|
|
|
FirstInternal="$( echo "$InternalViews" | sed -ne 's/^\(\S\+\)\s.*$/\1/p')"
|
|
# ForwardZones: "<Zone>/<Zonendatei>" ; optionaly multiple " ""<ZoneX>/<ZonendateiX>" no spaces in full filename
|
|
ForwardZones="$MasterDomain""/""$ZoneFilesFolder""db.""$FirstInternal"".""$MasterDomain"
|
|
BindIcvpnAclTmp="$TempFolder""icvpn-acl.conf"
|
|
BindIcvpnAcl="$BindIncludeFileFolder""icvpn-acl.conf"
|
|
[ -n "$DNSSECPolicy" ] || DNSSECKeyFolder=""
|
|
|
|
mkdir -p "$TempFolder""cache"
|
|
|
|
for IView in $InternalViews; do
|
|
rm -f "$TempFolder""$IView"".conf"
|
|
done
|
|
rm -f "$TempFolder""$ExternalView"".conf"
|
|
|
|
CachedMasterFile="$TempFolder""cache/db.""$MasterDomain"
|
|
PreFetchMasterSerial="$(GetZoneFileSerial "$CachedMasterFile")"
|
|
curl -s -S -f "$RemoteLocation""db.""$MasterDomain" --output "$CachedMasterFile" && [ -f "$CachedMasterFile" ] && echo "" >> "$CachedMasterFile" || :
|
|
PostFetchMasterSerial="$(GetZoneFileSerial "$CachedMasterFile")"
|
|
[ -n "$SubCommunityDomain" ] || ServeMasterZone="$( GetAllZoneNameservers "$MasterDomain" "$CachedMasterFile" | awk '{for(i=NF;i>0;--i) if($i=="'"$DNSSCRIPT_SERVER_NAME"'") {printf 1}}')"
|
|
if [ -n "$MasterExternDomain" ]; then
|
|
if [ -n "$ServeMasterZone" ]; then
|
|
ServeExtZone="1"
|
|
else
|
|
ServeExtZone="$( GetAllSubNameservers "$CommunityDomain" "$CommunityExternPrefix" "$CachedMasterFile" | awk '{for(i=NF;i>0;--i) if($i=="'"$DNSSCRIPT_SERVER_NAME"'") {printf 1}}')"
|
|
fi
|
|
else
|
|
ServeExtZone=""
|
|
fi
|
|
|
|
UpdateExternal() {
|
|
CachedZoneFile="$TempFolder""cache/db.""$InternalDomain""E"
|
|
|
|
UpdateExternView=0
|
|
if [ -n "$ExternalView" ] || [ -n "$ExternDomain" ]; then
|
|
SerialExtern="$(GetZoneFileSerial "$ExternalZoneFile")"
|
|
if [ $((SerialIntern)) -gt $((SerialExtern)) ]; then
|
|
sed -e '/^[^;]*\s\(10\.\|[fF][cdCD][0-9a-fA-F]\{2\}:\)\S*\s*\(;.*\)\?$/d; \
|
|
s/^[^;^@]*\s\+\([^;]*\)\s[Ii][Nn]\s\+[Ss][Oo][Aa]\s/@ \1 IN SOA /g' "$InternalZoneFile" \
|
|
> "$ExternalZoneFile"
|
|
UpdateExternView=1
|
|
ReloadZone "$InternalDomain" "$ExternalView" "$ZoneFilesFolder"
|
|
fi
|
|
fi
|
|
|
|
if [ -n "$ExternDomain" ]; then
|
|
ExtDomainFile="$ZoneFilesFolder""db.""$FirstInternal"".""$ExternDomain"
|
|
ZoneTempFolder="$TempFolder""cache/""$ExternDomain""/"
|
|
cp -f "$ExternalZoneFile" "$CachedZoneFile"
|
|
[ -z "$DNSSECKeyFolder" ] || sed -i -e '/^\s*_dnsseckeys\./d' "$CachedZoneFile"
|
|
[ -n "$(sed -e '/^\s*\(@\s\+\([0-9]*\s\)\?\s*[Ii][Nn]\s\+[Nn][Ss]\)\s/!d' "$CachedZoneFile")" ] || \
|
|
sed -i -e 's/^\s*\(@\s\+\([0-9]*\s\)\?\s*[Ii][Nn]\s\+[Ss][Oo][Aa]\)\s\+\S\+\s\+\S\+\s/\1 '"$DNSSCRIPT_SERVER_NAME"'. '"$DNSSCRIPT_CONTACT_EMAIL"' /g' "$CachedZoneFile"
|
|
|
|
sed -i -e 's/^\s*'"$CommunityExternPrefix"'\s/@ /g;/^\s*\S\+\.\s\+\([0-9]*\s\)\?\s*[Ii][Nn]\s\+[Dd][Ss]\s/d' "$CachedZoneFile"
|
|
|
|
UpdateExternDomain="$(UpdateDNSSECEntryCache "$ExternDomain" "$ZoneTempFolder" "$CachedZoneFile" "$DNSSECKeyFolder")"
|
|
if [ $UpdateExternView -ne 0 ] || [ $UpdateExternDomain -ne 0 ]; then
|
|
for KeyFile in "$ZoneTempFolder"*; do
|
|
[ "$KeyFile" = "$ZoneTempFolder""*" ] || \
|
|
cat "$KeyFile" >> "$CachedZoneFile"
|
|
done
|
|
LocalExtDomainMasterSerial="$(GetZoneFileSerial "$ExtDomainFile")"
|
|
|
|
if [ $((SerialIntern)) -le $((LocalExtDomainMasterSerial)) ]; then
|
|
LocalExtDomainMasterSerial=$((LocalExtDomainMasterSerial+1))
|
|
sed -i -e 's/^\(\s*\)'"$SerialIntern"'\(\s*;\s*[Ss]erial.*\)$/\1'"$LocalExtDomainMasterSerial"'\3/g' "$CachedZoneFile"
|
|
sed -i -e 's/^\(\s*\S\+\s\+\([0-9]*\s\)\?\s*[Ii][Nn]\s\+[Ss][Oo][Aa]\s\+\S\+\s\+\S\+\s\+\)'"$SerialIntern"'\(\s\+.*\)$/\1'"$LocalExtDomainMasterSerial"'\3/g' "$CachedZoneFile"
|
|
fi
|
|
mv "$CachedZoneFile" "$ExtDomainFile"
|
|
ReloadZone "$ExternDomain" "$InternalViews" "$ZoneFilesFolder"
|
|
ReloadZone "$ExternDomain" "$ExternalView" "$ZoneFilesFolder"
|
|
fi
|
|
|
|
InsertZoneToViews "$InternalViews" "$ZoneFilesFolder" "$ExternDomain" "$ExtDomainFile" "$TempFolder" "$DNSSECPolicy"
|
|
InsertZoneToViews "$ExternalView" "$ZoneFilesFolder" "$ExternDomain" "$ExtDomainFile" "$TempFolder" "$DNSSECPolicy"
|
|
fi
|
|
}
|
|
|
|
if [ -n "$ServeMasterZone" ] || [ -n "$ServeExtZone" ]; then
|
|
sed -i -e '/^\s*_dnsseckeys\./d' "$CachedMasterFile"
|
|
FileForExternGeneration="$CachedMasterFile"
|
|
if [ -n "$ExternalView" ]; then
|
|
ExternFile="$ZoneFilesFolder""db.""$ExternalView"".""$MasterDomain"
|
|
else
|
|
ExternFile="$ZoneFilesFolder""db.extern.""$MasterDomain"
|
|
fi
|
|
LocalMasterSerial=$((PostFetchMasterSerial))
|
|
if [ -n "$ServeMasterZone" ]; then
|
|
MasterFile="$ZoneFilesFolder""db.""$FirstInternal"".""$MasterDomain"
|
|
FileForExternGeneration="$MasterFile"
|
|
ZoneTempFolder="$TempFolder""cache/""$MasterDomain""/"
|
|
|
|
UpdateMaster="$(UpdateDNSSECEntryCache "$MasterDomain" "$ZoneTempFolder" "$CachedMasterFile" "$DNSSECKeyFolder")"
|
|
if [ $((PostFetchMasterSerial)) -gt $((PreFetchMasterSerial)) ] || [ $UpdateMaster -ne 0 ]; then
|
|
cp -f "$CachedMasterFile" "$CachedMasterFile""I"
|
|
for KeyFile in "$ZoneTempFolder"*; do
|
|
[ "$KeyFile" = "$ZoneTempFolder""*" ] || \
|
|
cat "$KeyFile" >> "$CachedMasterFile""I"
|
|
done
|
|
LocalMasterSerial="$(GetZoneFileSerial "$MasterFile")"
|
|
|
|
if [ $((PostFetchMasterSerial)) -le $((LocalMasterSerial)) ]; then
|
|
LocalMasterSerial=$((LocalMasterSerial+1))
|
|
sed -i -e 's/^\(\s*\)'"$PostFetchMasterSerial"'\(\s*;\s*[Ss]erial.*\)$/\1'"$LocalMasterSerial"'\3/g' "$CachedMasterFile""I"
|
|
sed -i -e 's/^\(\s*\S\+\s\+\([0-9]*\s\)\?\s*[Ii][Nn]\s\+[Ss][Oo][Aa]\s\+\S\+\s\+\S\+\s\+\)'"$PostFetchMasterSerial"'\(\s\+.*\)$/\1'"$LocalMasterSerial"'\3/g' "$CachedMasterFile""I"
|
|
else
|
|
LocalMasterSerial=$((PostFetchMasterSerial))
|
|
fi
|
|
mv "$CachedMasterFile""I" "$MasterFile"
|
|
ReloadZone "$MasterDomain" "$InternalViews" "$ZoneFilesFolder"
|
|
|
|
InsertZoneToViews "$InternalViews" "$ZoneFilesFolder" "$MasterDomain" "$MasterFile" "$TempFolder" "$DNSSECPolicy"
|
|
fi
|
|
if [ -n "$ExternalView" ]; then
|
|
InsertZoneToIncludeFile "$MasterDomain" "$ExternFile" "$TempFolder""$ExternalView"".conf" "$DNSSECPolicy"
|
|
fi
|
|
fi
|
|
|
|
InternalZoneFile="$FileForExternGeneration"
|
|
ExternalZoneFile="$ExternFile"
|
|
InternalDomain="$MasterDomain"
|
|
ExternDomain="$MasterExternDomain"
|
|
SerialIntern="$LocalMasterSerial"
|
|
UpdateExternal
|
|
fi
|
|
|
|
if [ -z "$MasterFile" ]; then
|
|
MasterFile="$ZoneFilesFolder""db.""$FirstInternal"".""$MasterDomain"
|
|
cp -f "$CachedMasterFile" "$MasterFile"
|
|
fi
|
|
|
|
for Subnet in $CommunitySubnets; do
|
|
ReverseDomains="$(GetReverseDomains "$Subnet")"
|
|
for RDomain in $ReverseDomains; do
|
|
ReverseZoneFile="$(GetReverseZoneFileFromZone "${RDomain%*.}")"
|
|
! curl -s -f "$RemoteLocation""static.""$ReverseZoneFile" \
|
|
--output "$ZoneFilesFolder""static.""$ReverseZoneFile" && \
|
|
rm -f "$ZoneFilesFolder""static.""$ReverseZoneFile"
|
|
./update-rdnszone.sh "$RDomain" "$ForwardZones" "$ZoneFilesFolder""$ReverseZoneFile" "$TTLReReExMi" "$InternalViews"
|
|
for IView in $InternalViews; do
|
|
InsertZoneToIncludeFile "${RDomain%*.}" "$ZoneFilesFolder""$ReverseZoneFile" "$TempFolder""$IView"".conf"
|
|
done
|
|
done
|
|
done
|
|
|
|
# set shorter TTL for Hoods
|
|
TTLReReExMi="420 360 180 1800 360"
|
|
|
|
Hoods="$(GetOwnHoods "$MasterDomain" "$MasterFile")"
|
|
DNSSECKeyFolder=""
|
|
for Hood in $Hoods; do
|
|
HoodDomain="${Hood%%\#*}"".""$MasterDomain"
|
|
Subnets="$(echo "${Hood#*\#}" | sed -e 's/#/ /g')"
|
|
HoodZoneFile="$ZoneFilesFolder""db.""$FirstInternal"".""$HoodDomain"
|
|
if [ ! -f "$HoodZoneFile" ]; then
|
|
{
|
|
echo "\$TTL ${TTLReReExMi%% *}"
|
|
echo "@ IN SOA $DNSSCRIPT_SERVER_NAME""."" $DNSSCRIPT_CONTACT_EMAIL ("
|
|
echo " 1 ; Serial"
|
|
echo " ""$(echo "$TTLReReExMi" | awk '{print $2}')"" ; Refresh"
|
|
echo " ""$(echo "$TTLReReExMi" | awk '{print $3}')"" ; Retry"
|
|
echo " ""$(echo "$TTLReReExMi" | awk '{print $4}')"" ; Expire"
|
|
echo " ""$(echo "$TTLReReExMi" | awk '{print $5}')"" ) ; Negative Cache TTL"
|
|
echo ";"
|
|
echo "@ IN NS $DNSSCRIPT_SERVER_NAME""."""
|
|
GetOwnGlueRecords "$MasterDomain" "$HoodDomain" "$MasterFile"
|
|
echo ";"
|
|
} > "$HoodZoneFile"
|
|
fi
|
|
ZoneTempFolder="$TempFolder""cache/""$HoodDomain""/"
|
|
./update-hoodzone.sh "$HoodZoneFile" "$HoodDomain" "$Subnets" "$InternalViews" "$ZoneTempFolder" "$ZoneFilesFolder"
|
|
|
|
InsertZoneToViews "$InternalViews" "$ZoneFilesFolder" "$HoodDomain" "$HoodZoneFile" "$TempFolder" "$DNSSECPolicy"
|
|
|
|
HoodForwardZones="$ForwardZones $HoodDomain""/""$HoodZoneFile"
|
|
for Subnet in $Subnets; do
|
|
ReverseDomains="$(GetReverseDomains "$Subnet")"
|
|
for RDomain in $ReverseDomains; do
|
|
ReverseZoneFileFullPath="$ZoneFilesFolder""$(GetReverseZoneFileFromZone "${RDomain%*.}")"
|
|
./update-rdnszone.sh "$RDomain" "$HoodForwardZones" "$ReverseZoneFileFullPath" "$TTLReReExMi" "$InternalViews"
|
|
for IView in $InternalViews; do
|
|
InsertZoneToIncludeFile "${RDomain%*.}" "$ReverseZoneFileFullPath" "$TempFolder""$IView"".conf"
|
|
done
|
|
done
|
|
done
|
|
if [ -n "$MasterExternDomain" ]; then
|
|
HoodExternDomain="${Hood%%\#*}"".""$MasterExternDomain"
|
|
else
|
|
HoodExternDomain=""
|
|
fi
|
|
|
|
if [ -n "$ExternalView" ]; then
|
|
ExternFile="$ZoneFilesFolder""db.""$ExternalView"".""$HoodDomain"
|
|
elif [ -n "$HoodExternDomain" ]; then
|
|
ExternFile="$ZoneFilesFolder""db.""$HoodExternDomain"
|
|
else
|
|
ExternFile=""
|
|
fi
|
|
|
|
if [ -n "$ExternFile" ]; then
|
|
if [ -n "$ExternalView" ]; then
|
|
InsertZoneToIncludeFile "$HoodDomain" "$ExternFile" "$TempFolder""$ExternalView"".conf" "$DNSSECPolicy"
|
|
fi
|
|
InternalZoneFile="$HoodZoneFile"
|
|
ExternalZoneFile="$ExternFile"
|
|
InternalDomain="$HoodDomain"
|
|
ExternDomain="$HoodExternDomain"
|
|
SerialIntern="$(GetZoneFileSerial "$InternalZoneFile")"
|
|
UpdateExternal
|
|
fi
|
|
done
|
|
|
|
./update-public-acl.sh "$BindIcvpnAclTmp" "$RemoteLocation" "$RoutingTables"
|
|
|
|
ReConfigBind=0
|
|
UpdateBindConfig() {
|
|
if [ -f "$1" ] && ! cmp -s "$1" "$2"; then
|
|
mv "$1" "$2"
|
|
ReConfigBind=1
|
|
else
|
|
rm -f "$1"
|
|
fi
|
|
}
|
|
|
|
UpdateBindConfig "$BindIcvpnAclTmp" "$BindIcvpnAcl"
|
|
for IView in $InternalViews; do
|
|
UpdateBindConfig "$TempFolder""$IView"".conf" "$BindIncludeFileFolder""$IView"".conf"
|
|
done
|
|
if [ -n "$ExternalView" ]; then
|
|
UpdateBindConfig "$TempFolder""$ExternalView"".conf" "$BindIncludeFileFolder""$ExternalView"".conf"
|
|
fi
|
|
|
|
if [ $ReConfigBind -ne 0 ] || [ -f "/tmp/dnsscript-forcereconf" ]; then
|
|
if [ $((DNSSCRIPT_BIND_RELOAD_VER)) -eq 0 ]; then
|
|
systemctl restart bind9
|
|
elif [ $((DNSSCRIPT_BIND_RELOAD_VER)) -eq 1 ]; then
|
|
rndc reconfig
|
|
elif [ $((DNSSCRIPT_BIND_RELOAD_VER)) -eq 2 ]; then
|
|
/etc/init.d/named restart
|
|
fi
|
|
rm -f "/tmp/dnsscript-forcereconf"
|
|
fi |