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DNS: generator: ip calculation in bash

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Neo_Chen 2020-04-27 13:58:16 +08:00
parent 91eff9f3ae
commit 9dce524994
2 changed files with 40 additions and 26 deletions
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34
dns/db.10.127
View file

@ -107,22 +107,24 @@ $TTL 604800
142.0 IN PTR pan.icecat-jp3.tun30.neo. 142.0 IN PTR pan.icecat-jp3.tun30.neo.
; Point to Point Addresses ; Point to Point Addresses
1.10 IN PTR LanTian.pp.neo. 1.10 IN PTR LanTian.ptp.neo.
1.69 IN PTR santost12.pp.neo. 1.69 IN PTR santost12.ptp.neo.
2.127 IN PTR dfceaef.pp.neo. 1.69 IN PTR santost12.ptp.neo.
99.51 IN PTR JerryXiao.pp.neo. 2.127 IN PTR dfceaef.ptp.neo.
185.8 IN PTR staph.pp.neo. 99.51 IN PTR JerryXiao.ptp.neo.
193.8 IN PTR JerryXiao.pp.neo. 185.8 IN PTR staph.ptp.neo.
193.8 IN PTR JerryXiao.pp.neo. 193.8 IN PTR JerryXiao.ptp.neo.
193.8 IN PTR JerryXiao.pp.neo. 193.8 IN PTR JerryXiao.ptp.neo.
194.8 IN PTR JerryXiao-HK1.pp.neo. 193.8 IN PTR JerryXiao.ptp.neo.
194.8 IN PTR JerryXiao-HK1.pp.neo. 194.8 IN PTR JerryXiao-HK1.ptp.neo.
194.8 IN PTR JerryXiao-HK1.pp.neo. 194.8 IN PTR JerryXiao-HK1.ptp.neo.
195.8 IN PTR JerryXiao-SH1.pp.neo. 194.8 IN PTR JerryXiao-HK1.ptp.neo.
195.8 IN PTR JerryXiao-SH1.pp.neo. 195.8 IN PTR JerryXiao-SH1.ptp.neo.
196.8 IN PTR JerryXiao-HK2.pp.neo. 195.8 IN PTR JerryXiao-SH1.ptp.neo.
199.11 IN PTR SUNNET.pp.neo. 196.8 IN PTR JerryXiao-HK2.ptp.neo.
254.4 IN PTR Icecat-Explosion.pp.neo. 199.11 IN PTR SUNNET.ptp.neo.
253.4 IN PTR MagicNeko-JP3.ptp.neo.
254.4 IN PTR Icecat-Explosion.ptp.neo.
; Loopback Addresses ; Loopback Addresses
1.255 IN PTR NeoPDP-11.neo 1.255 IN PTR NeoPDP-11.neo

32
scripts/dns-reverse-generator.sh
View file

@ -1,15 +1,14 @@
#!/usr/bin/env bash #!/usr/bin/env bash
set -e set -e
IPTOOL="$PWD/Misc/C/ip"
TUN30_TEMP="$(mktemp)" TUN30_TEMP="$(mktemp)"
PP_TEMP="$(mktemp)" PP_TEMP="$(mktemp)"
LO_TEMP="$(mktemp)" LO_TEMP="$(mktemp)"
if [ ! -x "$IPTOOL" ]; then if [[ "$(uname)" = *BSD ]]; then
echo "You need to build Misc/C/ip first" TAC=gtac
exit 1 else
TAC=tac
fi fi
print_record() print_record()
@ -17,6 +16,19 @@ print_record()
printf "%s\tIN\tPTR\t%s\n" "$1" "$2" printf "%s\tIN\tPTR\t%s\n" "$1" "$2"
} }
ipcalc()
{
local subnet="$1"
local add="$2"
REV="$(echo -n "${subnet%,*}." | "$TAC" -s .)"
REV="${REV%.*.*.}"
echo "$[ ${REV%.*} + $add ].${REV#*.}"
}
# PROGRAM BEGIN
sed -i '/AUTOGENERATED/,$d' dns/db.10.127 sed -i '/AUTOGENERATED/,$d' dns/db.10.127
echo '; AUTOGENERATED' >> dns/db.10.127 echo '; AUTOGENERATED' >> dns/db.10.127
@ -25,8 +37,8 @@ cd route
for i in *; do for i in *; do
source "$i" source "$i"
if [ "$TYPE" = "TUN30" ]; then if [ "$TYPE" = "TUN30" ]; then
upstream_ip=$("$IPTOOL" "$i" 1) upstream_ip=$(ipcalc "$i" 1)
downstream_ip=$("$IPTOOL" "$i" 2) downstream_ip=$(ipcalc "$i" 2)
( (
print_record "$upstream_ip" "$DOWNSTREAM.$UPSTREAM.tun30.neo." print_record "$upstream_ip" "$DOWNSTREAM.$UPSTREAM.tun30.neo."
@ -38,13 +50,13 @@ for i in *; do
downstream_ip="${i#*~}" downstream_ip="${i#*~}"
( (
print_record "$("$IPTOOL" "$upstream_ip" 0)" "$UPSTREAM.ptp.neo." print_record "$(ipcalc "$upstream_ip" 0)" "$UPSTREAM.ptp.neo."
print_record "$("$IPTOOL" "$downstream_ip" 0)" "$DOWNSTREAM.ptp.neo." print_record "$(ipcalc "$downstream_ip" 0)" "$DOWNSTREAM.ptp.neo."
) >> "$PP_TEMP" ) >> "$PP_TEMP"
elif [ "$TYPE" = "LO" ]; then elif [ "$TYPE" = "LO" ]; then
ip="${i/,32/}" ip="${i/,32/}"
print_record "$("$IPTOOL" "$ip" 0)" "$NAME.neo" >> "$LO_TEMP" print_record "$(ipcalc "$ip" 0)" "$NAME.neo" >> "$LO_TEMP"
fi fi
done done
) )