Subversion Repositories ALCASAR

Rev

Rev 3088 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log

Rev Author Line No. Line
2223 tom.houday 1 
#!/bin/bash
2 
# $Id: alcasar-dns-local.sh 3099 2022-12-28 11:30:30Z rexy $
1607 franck 3 
 
2688 lucas.echa 4 
# alcasar-dns-local.sh
1607 franck 5 
# by Rexy - 3abtux
6 
# This script is distributed under the Gnu General Public License (GPL)
7 
 
8 
# active ou desactive la redirection du service DNS sur le réseau de consultation
9 
# enable or disable the redirector of internal DNS service on consultation LAN
10 
 
11 
SED="/bin/sed -i"
12 
 
13 
ALCASAR_CONF_FILE="/usr/local/etc/alcasar.conf"
2688 lucas.echa 14 
LOCAL_DOMAIN_CONF_FILE="/etc/unbound/conf.d/common/local-forward/dns-redirector.conf"
2559 rexy 15 
LOCAL_HOSTNAME_FILE="/etc/hosts"
1607 franck 16 
 
17 
# define DNS parameters (LAN side)
2831 rexy 18 
INT_DNS_DOMAIN=`grep ^DOMAIN $ALCASAR_CONF_FILE|cut -d"=" -f2`
19 
INT_DNS_HOST=`grep ^HOSTNAME $ALCASAR_CONF_FILE|cut -d"=" -f2`
2833 rexy 20 
INT_DNS_IP_MASK=`grep ^PRIVATE_IP $ALCASAR_CONF_FILE|cut -d"=" -f2`
2831 rexy 21 
INT_DNS_IP=`grep ^PRIVATE_IP $ALCASAR_CONF_FILE|cut -d"=" -f2|cut -d"/" -f1`
22 
INTIF=`grep ^INTIF $ALCASAR_CONF_FILE|cut -d"=" -f2`
23 
INT_DNS_ACTIVE=`grep INT_DNS_ACTIVE $ALCASAR_CONF_FILE|cut -d"=" -f2`
24 
LOCAL_DNS_FILE="/etc/unbound/conf.d/common/local-dns/$INTIF.conf"
1607 franck 25 
 
2688 lucas.echa 26 
usage="Usage: alcasar-dns-local.sh {--on | -on} | {--off | -off} | {--add | -add} ip domain | {--del | -del} ip domain | {--reload | -reload}"
1607 franck 27 
nb_args=$#
28 
args=$1
29 
if [ $nb_args -eq 0 ]
30 
then
31 
	echo "$usage"
32 
	exit 1
33 
fi
2688 lucas.echa 34 
 
2559 rexy 35 
function restart_dns(){
3099 rexy 36 
	for dns in unbound unbound-blacklist unbound-whitelist unbound-blackhole
2559 rexy 37 
	do
2947 rexy 38 
		echo "Restarting $dns. Please wait..."
2559 rexy 39 
		systemctl restart $dns
40 
	done
41 
}
42 
 
2861 rexy 43 
function hosts_to_unbound(){  # configure the unbound conf file with local host names resolution
2831 rexy 44 
		cat << EOF > $LOCAL_DNS_FILE
45 
server:
3088 rexy 46 
	local-data: "$INT_DNS_HOST.$INT_DNS_DOMAIN IN A $INT_DNS_IP"
2831 rexy 47 
	local-data-ptr: "$INT_DNS_IP $INT_DNS_HOST.$INT_DNS_DOMAIN"
48 
EOF
2688 lucas.echa 49 
	while read -r line
50 
	do
51 
		ip_address=$(echo $line | awk '{ print $1 }')
52 
		domain=$(echo $line | awk '{ print $2 }')
53 
		if ! echo $line | grep -E -q "^([0-9\.\t ]+alcasar( |$)|127\.0\.0)"
54 
		then
3088 rexy 55 
			echo -e "\tlocal-data: \"$domain.$INT_DNS_DOMAIN IN A $ip_address\"" >> $LOCAL_DNS_FILE
2831 rexy 56 
			echo -e "\tlocal-data-ptr: \"$ip_address $domain.$INT_DNS_DOMAIN\"" >> $LOCAL_DNS_FILE
2688 lucas.echa 57 
		fi
58 
	done < $LOCAL_HOSTNAME_FILE
3088 rexy 59 
	if [ $INT_DNS_DOMAIN == "localdomain" ]
60 
	then
61 
		echo -e "\tlocal-zone: \"$INT_DNS_DOMAIN\" static" >> $LOCAL_DNS_FILE  # Don't forward this local zone
62 
	fi
2688 lucas.echa 63 
}
64 
 
1607 franck 65 
case $args in
66 
	-\? | -h | --h)
67 
		echo "$usage"
68 
		exit 0
69 
		;;
2559 rexy 70 
	--add|-add) # add a local host resolution
71 
		if [ $nb_args -ne 3 ]
72 
		then
73 
			echo "$usage"
74 
			exit 1
75 
		else
2688 lucas.echa 76 
			# removing if already exists
2838 rexy 77 
			$SED "/^$2[ \t]*$3/d" $LOCAL_HOSTNAME_FILE
2688 lucas.echa 78 
			# adding to the hosts file
2559 rexy 79 
			echo -e "$2\t$3" >> $LOCAL_HOSTNAME_FILE
2688 lucas.echa 80 
			hosts_to_unbound
2559 rexy 81 
			restart_dns
82 
		fi
83 
		;;
84 
	--del|-del) # remove a local host resolution
85 
		if [ $nb_args -ne 3 ]
86 
		then
87 
			echo "$usage"
88 
			exit 1
89 
		else
2838 rexy 90 
			$SED "/^$2[ \t]*$3/d" $LOCAL_HOSTNAME_FILE
2688 lucas.echa 91 
			hosts_to_unbound
2559 rexy 92 
			restart_dns
93 
		fi
94 
		;;
2688 lucas.echa 95 
	--reload|-reload)
96 
			hosts_to_unbound
97 
			restart_dns
98 
		;;
2825 rexy 99 
	--hosts_to_unbound|-hosts_to_unbound)
100 
			hosts_to_unbound
101 
		;;
1607 franck 102 
	--off|-off) # disable DNS redirector
2688 lucas.echa 103 
		rm -f $LOCAL_DOMAIN_CONF_FILE
1607 franck 104 
		$SED "s?^INT_DNS_ACTIVE.*?INT_DNS_ACTIVE=off?g" $ALCASAR_CONF_FILE
2559 rexy 105 
		restart_dns
2688 lucas.echa 106 
		/usr/local/bin/alcasar-iptables.sh
1607 franck 107 
		;;
2947 rexy 108 
	--off-without-restart|-off-without-restart) # disable DNS redirector
109 
		rm -f $LOCAL_DOMAIN_CONF_FILE
110 
		$SED "s?^INT_DNS_ACTIVE.*?INT_DNS_ACTIVE=off?g" $ALCASAR_CONF_FILE
111 
		/usr/local/bin/alcasar-iptables.sh
112 
		;;
2688 lucas.echa 113 
	--on|-on) # enable DNS redirector
114 
		cat > $LOCAL_DOMAIN_CONF_FILE << EOF
115 
server:
116 
    local-zone: "$INT_DNS_DOMAIN." transparent
117 
forward-zone:
118 
	name: "$INT_DNS_DOMAIN."
119 
	forward-addr: $INT_DNS_IP
120 
EOF
1607 franck 121 
		$SED "s?^INT_DNS_ACTIVE.*?INT_DNS_ACTIVE=on?g" $ALCASAR_CONF_FILE
2964 rexy 122 
		restart_dns
2688 lucas.echa 123 
		/usr/local/bin/alcasar-iptables.sh
1607 franck 124 
		;;
2947 rexy 125 
	--on-without-restart|-on-without-restart) # enable DNS redirector
126 
		cat > $LOCAL_DOMAIN_CONF_FILE << EOF
127 
server:
128 
    local-zone: "$INT_DNS_DOMAIN." transparent
129 
forward-zone:
130 
	name: "$INT_DNS_DOMAIN."
131 
	forward-addr: $INT_DNS_IP
132 
EOF
133 
		$SED "s?^INT_DNS_ACTIVE.*?INT_DNS_ACTIVE=on?g" $ALCASAR_CONF_FILE
134 
		/usr/local/bin/alcasar-iptables.sh
135 
		;;
1607 franck 136 
	*)
2688 lucas.echa 137 
		echo "Argument inconnu : $1";
1607 franck 138 
		echo "$usage"
139 
		exit 1
140 
		;;
141 
esac