187 lines
7.9 KiB
Bash
Executable File
187 lines
7.9 KiB
Bash
Executable File
#!/bin/sh
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# exit script when command fails
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set -e
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# Communityconfig
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CommunityDomain="fff.community"
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CommunityExternDomain="extern.fff.community"
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CommunitySubnets="10.50.0/16 10.83.0/16 fd43:5602:29bd::/48"
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RemoteLocation="https://git.freifunk-franken.de/freifunk-franken/dns/raw/branch/master/"
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DNSSECPolicy=""
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ServeMasterZone=0
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# Serverconfig
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export DNSSCRIPT_CONTACT_EMAIL=info.freifunk-herpf.de.
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# DNSSCRIPT_SERVER_NAME must be the server given in community zone files NS entry (Full Hostname, w/o trailing dot)
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export DNSSCRIPT_SERVER_NAME=dns.herpf.fff.community
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UpdateScriptsFolder="/usr/lib/ffdns/"
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ZoneFilesFolder="/etc/bind/fff/"
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BindIncludeFileFolder="/etc/bind/"
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# specify the bird/babel or other routing table[s]
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# if RoutingTables is empty, the ICVPN-ACL-List will be fetched remotely (for servers that are no gateways)
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RoutingTables="10"
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# -1 -> disable bind [restart|reload]
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# 0 -> Debian (and like) systemctl [reload|restart] bind9
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# 1 -> use rndc to [reload zone|reconfig] (recommended; rndc needs setup first)
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# 2 -> OpenWRT /etc/init.d/named [reload|restart]
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export DNSSCRIPT_BIND_RELOAD_VER=0
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# only necessary when rndc is used
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InternalViews="icvpn-internal-view icvpn-internal-dns64-view"
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ExternalView="external-view"
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# TTL Refresh Retry Expire Minimum
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TTLReReExMi="3600 2000 6400 2419200 86400"
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# ForwardZones: "<Zone>/<Zonendatei>" ; optionaly multiple " ""<ZoneX>/<ZonendateiX>" no spaces in full filename
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ForwardZones="$CommunityDomain""/""$ZoneFilesFolder""db.icvpn-internal-view.""$CommunityDomain"
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#############################################################
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cd "$UpdateScriptsFolder"
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. ./dns-functions.sh
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FirstInternal="$( echo "$InternalViews" | sed -ne 's/^\(\S\+\)\s.*$/\1/p')"
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MasterFile="$ZoneFilesFolder""db.""$FirstInternal"".""$CommunityDomain"
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BindIcvpnAclTmp="/tmp/icvpn-acl.conf"
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BindIcvpnAcl="$BindIncludeFileFolder""icvpn-acl.conf"
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for IView in $InternalViews; do
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rm -f "/tmp/""$IView"".conf"
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done
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rm -f "/tmp/""$ExternalView"".conf"
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PreFetchMasterSerial="$(GetZoneFileSerial "$MasterFile")"
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curl -s -S -f "$RemoteLocation""db.""$CommunityDomain" --output "$MasterFile"
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if [ $ServeMasterZone -ne 0 ]; then
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PostFetchMasterSerial="$(GetZoneFileSerial "$MasterFile")"
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if [ $((PostFetchMasterSerial)) -gt $((PreFetchMasterSerial)) ]; then
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ReloadZone "$CommunityDomain" "$InternalViews"
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fi
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for Subnet in $CommunitySubnets; do
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ReverseDomains="$(GetReverseDomains "$Subnet")"
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for RDomain in $ReverseDomains; do
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ReverseZoneFile="$(GetReverseZoneFileFromZone "${RDomain%*.}")"
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! curl -s -f "$RemoteLocation""static.""$ReverseZoneFile" \
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--output "$ZoneFilesFolder""static.""$ReverseZoneFile" && \
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rm -f "$ZoneFilesFolder""static.""$ReverseZoneFile"
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./update-rdnszone.sh "$RDomain" "$ForwardZones" "$ZoneFilesFolder""$ReverseZoneFile" "$TTLReReExMi" "$InternalViews"
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for IView in $InternalViews; do
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InsertZoneToIncludeFile "${RDomain%*.}" "$ZoneFilesFolder""$ReverseZoneFile" "/tmp/""$IView"".conf"
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done
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done
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done
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ExternFile="$ZoneFilesFolder""db.""$ExternalView"".""$CommunityDomain"
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./update-extzone.sh "$MasterFile" "$ExternFile" "$CommunityDomain" "$ExternalView"
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for IView in $InternalViews; do
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InternViewMasterZone="$ZoneFilesFolder""db.""$IView"".""$CommunityDomain"
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[ -f "$InternViewMasterZone" ] || ln -s "$MasterFile" "$InternViewMasterZone"
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InsertZoneToIncludeFile "$CommunityDomain" "$InternViewMasterZone" "/tmp/""$IView"".conf" "$DNSSECPolicy"
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done
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InsertZoneToIncludeFile "$CommunityDomain" "$ExternFile" "/tmp/""$ExternalView"".conf" "$DNSSECPolicy"
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if [ -n "$CommunityExternDomain" ]; then
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for IView in $InternalViews; do
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InternViewExternZone="$ZoneFilesFolder""db.""$IView"".""$CommunityExternDomain"
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[ -f "$InternViewExternZone" ] || ln -s "$ExternFile" "$InternViewExternZone"
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InsertZoneToIncludeFile "$CommunityExternDomain" "$InternViewExternZone" "/tmp/""$IView"".conf" "$DNSSECPolicy"
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done
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ExternViewExternZone="$ZoneFilesFolder""db.""$ExternalView"".""$CommunityExternDomain"
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[ -f "$ExternViewExternZone" ] || ln -s "$ExternFile" "$ExternViewExternZone"
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InsertZoneToIncludeFile "$CommunityExternDomain" "$ExternViewExternZone" "/tmp/""$ExternalView"".conf" "$DNSSECPolicy"
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fi
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fi
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# set shorter TTL for Hoods
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TTLReReExMi="420 360 180 1800 360"
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Hoods="$(GetOwnHoods "$CommunityDomain" "$MasterFile")"
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for Hood in $Hoods; do
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HoodDomain="${Hood%%\#*}"".""$CommunityDomain"
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Subnets="$(echo "${Hood#*\#}" | sed -e 's/#/ /g')"
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HoodZoneFile="$ZoneFilesFolder""db.""$FirstInternal"".""$HoodDomain"
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if [ ! -f "$HoodZoneFile" ]; then
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{
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echo "\$TTL ${TTLReReExMi%% *}"
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echo "@ IN SOA $DNSSCRIPT_SERVER_NAME""."" $DNSSCRIPT_CONTACT_EMAIL ("
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echo " 1 ; Serial"
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echo " ""$(echo "$TTLReReExMi" | awk '{print $2}')"" ; Refresh"
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echo " ""$(echo "$TTLReReExMi" | awk '{print $3}')"" ; Retry"
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echo " ""$(echo "$TTLReReExMi" | awk '{print $4}')"" ; Expire"
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echo " ""$(echo "$TTLReReExMi" | awk '{print $5}')"" ) ; Negative Cache TTL"
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echo ";"
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echo "@ IN NS $DNSSCRIPT_SERVER_NAME""."""
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GetOwnGlueRecords "$CommunityDomain" "$HoodDomain" "$MasterFile"
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echo ";"
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} > "$HoodZoneFile"
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fi
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./update-hoodzone.sh "$HoodZoneFile" "$HoodDomain" "$Subnets" "$InternalViews"
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HoodForwardZones="$ForwardZones $HoodDomain""/""$HoodZoneFile"
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for Subnet in $Subnets; do
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ReverseDomains="$(GetReverseDomains "$Subnet")"
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for RDomain in $ReverseDomains; do
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ReverseZoneFileFullPath="$ZoneFilesFolder""$(GetReverseZoneFileFromZone "${RDomain%*.}")"
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./update-rdnszone.sh "$RDomain" "$HoodForwardZones" "$ReverseZoneFileFullPath" "$TTLReReExMi" "$InternalViews"
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for IView in $InternalViews; do
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InsertZoneToIncludeFile "${RDomain%*.}" "$ReverseZoneFileFullPath" "/tmp/""$IView"".conf"
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done
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done
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done
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ExternFile="$ZoneFilesFolder""db.""$ExternalView"".""$HoodDomain"
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./update-extzone.sh "$HoodZoneFile" "$ExternFile" "$HoodDomain" "$ExternalView"
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for IView in $InternalViews; do
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InternViewMasterZone="$ZoneFilesFolder""db.""$IView"".""$HoodDomain"
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[ -f "$InternViewMasterZone" ] || ln -s "$HoodZoneFile" "$InternViewMasterZone"
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InsertZoneToIncludeFile "$HoodDomain" "$InternViewMasterZone" "/tmp/""$IView"".conf" "$DNSSECPolicy"
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done
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InsertZoneToIncludeFile "$HoodDomain" "$ExternFile" "/tmp/""$ExternalView"".conf" "$DNSSECPolicy"
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if [ -n "$CommunityExternDomain" ]; then
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HoodExternDomain="${Hood%%\#*}"".""$CommunityExternDomain"
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for IView in $InternalViews; do
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InternViewExternZone="$ZoneFilesFolder""db.""$IView"".""$HoodExternDomain"
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[ -f "$InternViewExternZone" ] || ln -s "$ExternFile" "$InternViewExternZone"
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InsertZoneToIncludeFile "$HoodExternDomain" "$InternViewExternZone" "/tmp/""$IView"".conf" "$DNSSECPolicy"
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done
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ExternViewExternZone="$ZoneFilesFolder""db.""$ExternalView"".""$HoodExternDomain"
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[ -f "$ExternViewExternZone" ] || ln -s "$ExternFile" "$ExternViewExternZone"
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InsertZoneToIncludeFile "$HoodExternDomain" "$ExternViewExternZone" "/tmp/""$ExternalView"".conf" "$DNSSECPolicy"
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fi
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done
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./update-public-acl.sh "$BindIcvpnAclTmp" "$RemoteLocation" "$RoutingTables"
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ReConfigBind=0
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UpdateBindConfig() {
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if [ -f "$1" ] && ! cmp -s "$1" "$2"; then
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mv "$1" "$2"
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ReConfigBind=1
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else
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rm -f "$1"
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fi
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}
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UpdateBindConfig "$BindIcvpnAclTmp" "$BindIcvpnAcl"
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for IView in $InternalViews; do
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UpdateBindConfig "/tmp/""$IView"".conf" "$BindIncludeFileFolder""$IView"".conf"
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done
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UpdateBindConfig "/tmp/""$ExternalView"".conf" "$BindIncludeFileFolder""$ExternalView"".conf"
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if [ $ReConfigBind -ne 0 ] || [ -f "/tmp/dnsscript-forcereconf" ]; then
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if [ $((DNSSCRIPT_BIND_RELOAD_VER)) -eq 0 ]; then
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systemctl restart bind9
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elif [ $((DNSSCRIPT_BIND_RELOAD_VER)) -eq 1 ]; then
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rndc reconfig
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elif [ $((DNSSCRIPT_BIND_RELOAD_VER)) -eq 2 ]; then
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/etc/init.d/named restart
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fi
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rm -f "/tmp/dnsscript-forcereconf"
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fi |