Replaced snort gpl community rules by emergingthreats.net rules.
[people/pmueller/ipfire-2.x.git] / src / initscripts / init.d / snort
1 #!/bin/sh
2 ########################################################################
3 # Begin $rc_base/init.d/snort
4 #
5 # Description : Snort Initscript
6 #
7 # Authors : Michael Tremer for ipfire.org - mitch@ipfire.org
8 #
9 # Version : 01.00
10 #
11 # Notes :
12 #
13 ########################################################################
14
15 . /etc/sysconfig/rc
16 . ${rc_functions}
17
18 PATH=/usr/local/sbin:/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin; export PATH
19
20 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
21 eval $(/usr/local/bin/readhash /var/ipfire/snort/settings)
22
23 if [ "$ENABLE_SNORT_ORANGE" == "on" ]; then
24 HOME_NET+="$ORANGE_ADDRESS,"
25 DEVICES+="$ORANGE_DEV "
26 fi
27
28 if [ "$ENABLE_SNORT_GREEN" == "on" ]; then
29 HOME_NET+="$GREEN_ADDRESS,"
30 DEVICES+="$GREEN_DEV "
31 fi
32
33 if [ "$ENABLE_SNORT_BLUE" == "on" ]; then
34 HOME_NET+="$BLUE_ADDRESS,"
35 DEVICES+="$BLUE_DEV "
36 fi
37
38 if [ "$ENABLE_SNORT" == "on" ]; then
39 LOCAL_IP=`cat /var/ipfire/red/local-ipaddress`
40 if [ "$LOCAL_IP" ]; then
41 HOME_NET+="$LOCAL_IP,"
42 else
43 exit 1 ## Add error handling here
44 fi
45 DEVICES+=`cat /var/ipfire/red/iface 2>/dev/null`
46 fi
47
48 COUNT=`echo $HOME_NET | wc -m`
49 HOME_NET=`echo $HOME_NET | cut -c $[$COUNT - 2]`
50
51 echo "var HOME_NET [$HOME_NET]" > /etc/snort/vars
52 echo "var EXTERNAL_NET ANY" >> /etc/snort/vars
53
54 DNS1=`cat /var/ipfire/red/dns1 2>/dev/null`
55 DNS2=`cat /var/ipfire/red/dns2 2>/dev/null`
56
57 if [ "$DNS2" ]; then
58 echo "var DNS_SERVERS [$DNS1,$DNS2]" >> /etc/snort/vars
59 else
60 echo "var DNS_SERVERS $DNS1" >> /etc/snort/vars
61 fi
62
63 case "$1" in
64 start)
65 # Disable incompatible rules
66 for file in $(ls /etc/snort/rules/*.rules); do
67 sed -i 's|^alert.*!\[\$DNS_SERVERS|#&|g' $file
68 sed -i 's|^alert.*!\$SSH_PORTS|#&|g' $file
69 sed -i 's|^alert.*!\$HOME_NET|#&|g' $file
70 sed -i 's|^alert.*!\$SQL_SERVERS|#&|g' $file
71 done
72
73 for DEVICE in $DEVICES; do
74 boot_mesg "Starting Intrusion Detection System on $DEVICE..."
75 /usr/sbin/snort -c /etc/snort/snort.conf -i $DEVICE -D -l /var/log/snort --create-pidfile --nolock-pidfile --pid-path /var/run/
76 evaluate_retval
77 sleep 1
78 chmod 644 /var/run/snort_$DEVICE.pid
79 done
80
81
82 if [ -r /var/ipfire/guardian/enable ]; then
83 IFACE=`/bin/cat /var/ipfire/red/iface 2>/dev/null | /usr/bin/tr -d '\012'`
84 sed -e "s/^Interface.*/Interface ${IFACE}/" /var/ipfire/guardian/guardian.conf > temp
85 mv temp /var/ipfire/guardian/guardian.conf
86 chown nobody.root /var/ipfire/guardian/guardian.conf
87
88 boot_mesg "Starting Guardian..."
89 loadproc /usr/local/bin/guardian.pl -c /var/ipfire/guardian/guardian.conf
90 fi
91 ;;
92
93 stop)
94 DEVICES=""
95 if [ -r /var/run/snort_$BLUE_DEV.pid ]; then
96 DEVICES+="$BLUE_DEV "
97 fi
98
99 if [ -r /var/run/snort_$GREEN_DEV.pid ]; then
100 DEVICES+="$GREEN_DEV "
101 fi
102
103 if [ -r /var/run/snort_$ORANGE_DEV.pid ]; then
104 DEVICES+="$ORANGE_DEV "
105 fi
106
107 RED=`cat /var/ipfire/red/iface 2>/dev/null`
108 if [ -r /var/run/snort_$RED.pid ]; then
109 DEVICES+=`cat /var/ipfire/red/iface 2>/dev/null`
110 fi
111
112 for DEVICE in $DEVICES; do
113 boot_mesg "Stopping Intrusion Detection System on $DEVICE..."
114 killproc -p /var/run/snort_$DEVICE.pid /var/run
115 done
116
117 rm /var/run/snort_* >/dev/null 2>/dev/null
118
119 if [ -r /var/ipfire/guardian/enable ]; then
120 boot_mesg "Stopping Guardian..."
121 killproc /usr/local/bin/guardian.pl
122 fi
123 ;;
124
125 status)
126 statusproc /usr/sbin/snort
127 ;;
128
129 restart)
130 $0 stop
131 $0 start
132 ;;
133
134 *)
135 echo "Usage: $0 {start|stop|restart|status}"
136 exit 1
137 ;;
138 esac
139
140 chmod 644 /var/log/snort/* 2>/dev/null
141
142 # End $rc_base/init.d/snort