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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 | boot_mesg "Check/Fix Intrusion Detection rules..." | |
67 | for file in $(ls /etc/snort/rules/*.rules 2>/dev/null); do | |
68 | sed -i 's|^alert.*!\[\$DNS_SERVERS|#&|g' $file | |
69 | sed -i 's|^alert.*!\$SSH_PORTS|#&|g' $file | |
70 | sed -i 's|^alert.*!\$HOME_NET|#&|g' $file | |
71 | sed -i 's|^alert.*!\$SQL_SERVERS|#&|g' $file | |
72 | done | |
73 | echo_ok | |
74 | ||
75 | for DEVICE in $DEVICES; do | |
76 | boot_mesg "Starting Intrusion Detection System on $DEVICE..." | |
77 | /usr/sbin/snort -c /etc/snort/snort.conf -i $DEVICE -D -l /var/log/snort --create-pidfile --nolock-pidfile --pid-path /var/run/ | |
78 | evaluate_retval | |
79 | sleep 1 | |
80 | chmod 644 /var/run/snort_$DEVICE.pid | |
81 | done | |
82 | ||
83 | ||
84 | if [ -r /var/ipfire/guardian/enable ]; then | |
85 | IFACE=`/bin/cat /var/ipfire/red/iface 2>/dev/null | /usr/bin/tr -d '\012'` | |
86 | sed -e "s/^Interface.*/Interface ${IFACE}/" /var/ipfire/guardian/guardian.conf > temp | |
87 | mv temp /var/ipfire/guardian/guardian.conf | |
88 | chown nobody.root /var/ipfire/guardian/guardian.conf | |
89 | ||
90 | boot_mesg "Starting Guardian..." | |
91 | loadproc /usr/local/bin/guardian.pl -c /var/ipfire/guardian/guardian.conf | |
92 | fi | |
93 | ;; | |
94 | ||
95 | stop) | |
96 | DEVICES="" | |
97 | if [ -r /var/run/snort_$BLUE_DEV.pid ]; then | |
98 | DEVICES+="$BLUE_DEV " | |
99 | fi | |
100 | ||
101 | if [ -r /var/run/snort_$GREEN_DEV.pid ]; then | |
102 | DEVICES+="$GREEN_DEV " | |
103 | fi | |
104 | ||
105 | if [ -r /var/run/snort_$ORANGE_DEV.pid ]; then | |
106 | DEVICES+="$ORANGE_DEV " | |
107 | fi | |
108 | ||
109 | RED=`cat /var/ipfire/red/iface 2>/dev/null` | |
110 | if [ -r /var/run/snort_$RED.pid ]; then | |
111 | DEVICES+=`cat /var/ipfire/red/iface 2>/dev/null` | |
112 | fi | |
113 | ||
114 | for DEVICE in $DEVICES; do | |
115 | boot_mesg "Stopping Intrusion Detection System on $DEVICE..." | |
116 | killproc -p /var/run/snort_$DEVICE.pid /var/run | |
117 | done | |
118 | ||
119 | rm /var/run/snort_* >/dev/null 2>/dev/null | |
120 | ||
121 | if [ -r /var/ipfire/guardian/enable ]; then | |
122 | boot_mesg "Stopping Guardian..." | |
123 | killproc /usr/local/bin/guardian.pl | |
124 | fi | |
125 | ;; | |
126 | ||
127 | status) | |
128 | statusproc /usr/sbin/snort | |
129 | ;; | |
130 | ||
131 | restart) | |
132 | $0 stop | |
133 | $0 start | |
134 | ;; | |
135 | ||
136 | *) | |
137 | echo "Usage: $0 {start|stop|restart|status}" | |
138 | exit 1 | |
139 | ;; | |
140 | esac | |
141 | ||
142 | chmod 644 /var/log/snort/* 2>/dev/null | |
143 | ||
144 | # End $rc_base/init.d/snort |