33,8 → 33,6 |
dns1=${dns1:=208.67.220.220} |
dns2=${dns2:=208.67.222.222} |
DNSSERVERS="$dns1,$dns2" # first and second public DNS servers |
PROTOCOLS_FILTERING=`grep ^PROTOCOLS_FILTERING= $CONF_FILE|cut -d"=" -f2` # Network protocols filter (on/off) |
PROTOCOLS_FILTERING=${PROTOCOLS_FILTERING:=off} |
BL_IP_CAT="/usr/local/share/iptables-bl-enabled" # categories files of the BlackListed IP |
WL_IP_CAT="/usr/local/share/iptables-wl-enabled" # categories files of the WhiteListed IP |
TMP_users_set_save="/tmp/users_set_save" # tmp file for backup users set |
62,6 → 60,10 |
ipset save havp_wl >> $TMP_users_set_save |
ipset save not_auth_yet >> $TMP_users_set_save |
ipset save users_list >> $TMP_users_set_save |
ipset save proto_0 >> $TMP_users_set_save |
ipset save proto_1 >> $TMP_users_set_save |
ipset save proto_2 >> $TMP_users_set_save |
ipset save proto_3 >> $TMP_users_set_save |
fi |
|
# loading of NetFlow probe (ipt_NETFLOW kernel module) |
150,6 → 152,11 |
ipset add users_list havp_bl |
ipset add users_list not_filtered |
ipset add users_list not_auth_yet |
#pour les filtrages de protocole par utilisateur |
ipset create proto_0 hash:net hashsize 1024 |
ipset create proto_1 hash:net hashsize 1024 |
ipset create proto_2 hash:net hashsize 1024 |
ipset create proto_3 hash:net hashsize 1024 |
fi |
|
############################# |
362,55 → 369,80 |
# Autorisation des retours de connexions légitimes |
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT |
|
# If protocols filter is activate |
if [ $PROTOCOLS_FILTERING = on ]; then |
# Compute uamallowed IP (IP address of equipments connected between ALCASAR and Internet (DMZ, own servers, ...) |
nb_uamallowed=`wc -l /usr/local/etc/alcasar-uamallowed | cut -d" " -f1` |
if [ $nb_uamallowed != "0" ] |
then |
while read ip_allowed_line |
do |
ip_allowed=`echo $ip_allowed_line|cut -d"\"" -f2` |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j NFLOG --nflog-prefix "RULE IP-allowed -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j ACCEPT |
done < /usr/local/etc/alcasar-uamallowed |
fi |
# Autorisation du HTTP et des protocoles non commentés |
# Allow HTTP and non comment protocols |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-$svc_name -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j ACCEPT |
while read svc_line |
# Compute uamallowed IP (IP address of equipments connected between ALCASAR and Internet (DMZ, own servers, ...) |
nb_uamallowed=`wc -l /usr/local/etc/alcasar-uamallowed | cut -d" " -f1` |
if [ $nb_uamallowed != "0" ] |
then |
while read ip_allowed_line |
do |
svc_on=`echo $svc_line|cut -b1` |
if [ $svc_on != "#" ] |
then |
svc_name=`echo $svc_line|cut -d" " -f1` |
svc_port=`echo $svc_line|cut -d" " -f2` |
if [ $svc_name = "icmp" ] |
then |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p icmp -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p icmp -j ACCEPT |
else |
ip_allowed=`echo $ip_allowed_line|cut -d"\"" -f2` |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j NFLOG --nflog-prefix "RULE IP-allowed -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j ACCEPT |
done < /usr/local/etc/alcasar-uamallowed |
fi |
|
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-$svc_name -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j ACCEPT |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j NFLOG --nflog-prefix "RULE F_UDP-$svc_name -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j ACCEPT |
fi |
|
|
#filtrage protocole par utilisateur (on autorise le HTTP pour tous) |
#profile 1 : HTTP/S only |
for proto in $(echo http https) |
do |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-P1$proto -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j ACCEPT |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j NFLOG --nflog-prefix "RULE F_UDP-P1$proto -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j ACCEPT |
done |
|
#profile 2 : HTTP/S, POP3S, IMAP/S, FTP, SSH/SFTP |
for proto in $(echo http https pop3 pop3s imap imaps ftp sftp ssh) |
do |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-P2$proto -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j ACCEPT |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j NFLOG --nflog-prefix "RULE F_UDP-P2$proto -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j ACCEPT |
done |
|
#profile 3 personalisables via l'ACC |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-P3http -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j ACCEPT |
while read svc_line |
do |
svc_on=`echo $svc_line|cut -b1` |
if [ $svc_on != "#" ] |
then |
svc_name=`echo $svc_line|cut -d" " -f1` |
svc_port=`echo $svc_line|cut -d" " -f2` |
if [ $svc_name = "icmp" ] |
then |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p icmp -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p icmp -j ACCEPT |
else |
|
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-P3$svc_name -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j ACCEPT |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j NFLOG --nflog-prefix "RULE F_UDP-P3$svc_name -- ACCEPT " |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j NETFLOW |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j ACCEPT |
fi |
done < /usr/local/etc/alcasar-services |
# Rejet explicite des autres protocoles |
# reject the others protocols |
$IPTABLES -A FORWARD -i $TUNIF -j NFLOG --nflog-prefix "RULE F_filter -- REJECT " |
$IPTABLES -A FORWARD -i $TUNIF -p tcp -j REJECT --reject-with tcp-reset |
$IPTABLES -A FORWARD -i $TUNIF -p udp -j REJECT --reject-with icmp-port-unreachable |
$IPTABLES -A FORWARD -i $TUNIF -p icmp -j REJECT |
fi |
fi |
done < /usr/local/etc/alcasar-services |
|
# Rejet explicite des autres protocoles pour P1, P2, P3 et les autres |
# reject the others protocols for P1,P2, P3 and other |
$IPTABLES -A FORWARD -i $TUNIF -m set ! --match-set proto_0 src -j NFLOG --nflog-prefix "RULE F_filterP1 -- REJECT " |
$IPTABLES -A FORWARD -i $TUNIF -m set ! --match-set proto_0 src -p tcp -j REJECT --reject-with tcp-reset |
$IPTABLES -A FORWARD -i $TUNIF -m set ! --match-set proto_0 src -p udp -j REJECT --reject-with icmp-port-unreachable |
$IPTABLES -A FORWARD -i $TUNIF -m set ! --match-set proto_0 src -p icmp -j REJECT |
|
|
|
# Autorisation des connections sortant du LAN |
# Allow forward connections with log |
#$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m state --state NEW -j ULOG --ulog-prefix "RULE F_all -- ACCEPT " |