75 lines
2.5 KiB
Bash
Executable File
75 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-3.0
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#
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# freifunk-franken dns-scipts (c) 2021-2023 Blackyfff
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. ./dns-functions.sh
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HoodZoneFile="$1"
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Domain="$2"
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Subnets="$3"
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View="$4"
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ZoneTempFolder="$5"
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ZoneFilesFolder="$6"
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DomainReg=".""$Domain"
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DomainReg="$(echo "$DomainReg" | sed -e 's/\./\\\./g')"
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GetLeaseEntriesInSubnet() {
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echo "$1" | while read -r LeaseLine; do
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if IPv4IsInSubnet "${LeaseLine##* }" "$2";then
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echo "$LeaseLine"
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fi
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done
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}
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ZoneTempFolder="$ZoneTempFolder""$Domain""/"
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OldSerial="$(GetZoneFileSerial "$ZoneTempFolder""db.""$Domain"".bkp")"
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NewSerial="$(GetZoneFileSerial "$HoodZoneFile")"
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ForceUpdate=""
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[ $((OldSerial)) -gt 0 ] && [ $((OldSerial)) -lt $((NewSerial)) ] && ForceUpdate="1"
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OldLeases="$(sed -e '/^;### Leases ###/,$!d;/^\s*\S\+\.\s\+\([0-9]*\s\)\?\s*[Ii][Nn]\s\+[Dd][Ss]\s/d' "$HoodZoneFile" | sed 1d)"
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if [ -f "/tmp/dhcp.leases" ]; then
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DnsmasqLeases="$(sed -ne 's/^\s*\(\S\+\s\+\)\{2\}\(\S\+\)\s\+\([_0-9a-zA-Z-]\+\)\s\+.*/\3 IN A \2/p' "/tmp/dhcp.leases")"
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for Subnet in $Subnets; do
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IsValidIPv4Subnet "$Subnet" && NewLeases="$(echo "$NewLeases"; GetLeaseEntriesInSubnet "$DnsmasqLeases" "$Subnet")"
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done
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fi
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for Leasefile in /tmp/hosts/*; do
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if [ -n "${Leasefile##*/tmp/hosts/\*}" ] && [ -n "${Leasefile##*fffmanage}" ]; then
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NewLeases="$(echo "$NewLeases"; sed -ne 's/^\s*\([0-9.]*\)\s\+\([_0-9a-zA-Z-]\+\)'"$DomainReg"'.*/\2 IN A \1/p' "$Leasefile")"
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NewLeases="$(echo "$NewLeases"; sed -ne 's/^\s*\([0-9a-fA-F:]*\)\s\+\([_0-9a-zA-Z-]\+\)'"$DomainReg"'.*/\2 IN AAAA \1/p' "$Leasefile")"
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fi
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done
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NewLeases="$(echo "$NewLeases" |
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sed -ne 's/^\(\(\(\S\+\)'"$DomainReg"'\)\|\(\S\+\)\)\(.*\)$/\3\4\5/p' |
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awk '!a[$0]++' |
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# uncomment and duplicate to secure static DNS-Entries
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# sed -e '/^dns\s\+.*/d' |
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# sed -e '/^gw01\s\+.*/d' |
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NormalizeZoneFileFormatting; \
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echo "_dnsscript_version IN TXT ""$DNSSCRIPT_VERSION" | NormalizeZoneFileFormatting)"
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UpdateZone="$(UpdateDNSSECEntryCache "$Domain" "$ZoneTempFolder" "$HoodZoneFile")"
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if [ "$NewLeases" != "$OldLeases" ] || [ -n "$UpdateZone" ] || [ -n "$ForceUpdate" ]; then
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NewSerial=$((NewSerial+1))
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sed -i -e 's/^\(\s*\)\(\S\+\)\(\s*;\s*Serial.*\)/\1'"$NewSerial"'\3/g' "$HoodZoneFile"
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sed -i -e '/^;### Leases ###/,$d' "$HoodZoneFile"
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{
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echo ";### Leases ###"
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echo "$NewLeases"
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} >> "$HoodZoneFile"
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for KeyFile in "$ZoneTempFolder"*; do
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[ "$KeyFile" = "$ZoneTempFolder""*" ] || \
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cat "$KeyFile" >> "$HoodZoneFile"
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done
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ReloadZone "$Domain" "$View" "$ZoneFilesFolder"
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fi
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cp -f "$HoodZoneFile" "$ZoneTempFolder""db.""$Domain"".bkp" |