diff options
Diffstat (limited to 'config/snort/snort.inc')
| -rwxr-xr-x | config/snort/snort.inc | 91 |
1 files changed, 79 insertions, 12 deletions
diff --git a/config/snort/snort.inc b/config/snort/snort.inc index 884f0883..50e7c291 100755 --- a/config/snort/snort.inc +++ b/config/snort/snort.inc @@ -137,8 +137,8 @@ function sync_package_snort() if($bpfmaxinsns) mwexec_bg("sysctl net.bpf.maxinsns={$bpfmaxinsns}"); - /* always stop snort2c before starting snort -gtm */ - $start .= "/usr/bin/killall snort2c\n"; + /* always stop barnyard2 before starting snort -gtm */ + $start .= "/usr/bin/killall barnyard2\n"; /* start a snort process for each interface -gtm */ /* Note the sleep delay. Seems to help getting mult interfaces to start -gtm */ @@ -148,24 +148,29 @@ function sync_package_snort() { $start .= "sleep 8\n"; $start .= "snort -c /usr/local/etc/snort/snort.conf -l /var/log/snort -D -i {$snortIf} -q\n"; + + /* define snortbarnyardlog_chk */ + $snortbarnyardlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog']; + if ($snortbarnyardlog_info_chk == on) + $start .= "\nsleep 4;barnyard2 -c /usr/local/etc/barnyard2.conf -d /var/log/snort -f snort.u2 -w /usr/local/etc/snort/barnyard2.waldo -D -q\n"; } - /* if block offenders is checked, start snort2c */ - if($_POST['blockoffenders']) { - $start .= "\nsleep 8\n"; - $start .= "snort2c -w /var/db/whitelist -a /var/log/snort/alert\n"; - } - + + + $if_snort_pid = "\nif ls /tmp/snort.sh.pid > /dev/null\nthen\n echo \"snort.sh is running\"\n exit 0\nelse\n echo \"snort.sh is not running\"\nfi\n"; + $echo_snort_sh_pid = "\necho \"snort.sh run\" > /tmp/snort.sh.pid\n"; + $echo_snort_sh_startup_log = "\necho \"snort.sh run\" >> /tmp/snort.sh_startup.log\n"; $sample_before = "\nBEFORE_MEM=`top | grep Free | grep Wired | awk '{print \$10}'`\n"; $sample_after = "\nAFTER_MEM=`top | grep Free | grep Wired | awk '{print \$10}'`\n"; $sleep_before_final = "\necho \"Sleeping before final memory sampling...\"\nsleep 17"; $total_free_after = "\nTOTAL_USAGE=`top | grep snort | grep -v grep | awk '{ print \$6 }'`\n"; $echo_usage = "\necho \"Ram free BEFORE starting Snort: \${BEFORE_MEM} -- Ram free AFTER starting Snort: \${AFTER_MEM}\" -- Mode {$snort_performance} -- Snort memory usage: \$TOTAL_USAGE | logger -p daemon.info -i -t SnortStartup\n"; + $rm_snort_sh_pid = "\nrm /tmp/snort.sh.pid\n"; /* write out rc.d start/stop file */ write_rcfile(array( "file" => "snort.sh", - "start" => "{$sample_before}{$start}{$sleep_before_final}{$sample_after}{$echo_usage}", + "start" => "{$if_snort_pid}{$echo_snort_sh_pid}{$echo_snort_sh_startup_log}{$sample_before}{$start}{$sleep_before_final}{$sample_after}{$echo_usage}{$rm_snort_sh_pid}", "stop" => "/usr/bin/killall snort; killall snort2c" ) ); @@ -173,11 +178,67 @@ function sync_package_snort() /* create snort configuration file */ create_snort_conf(); +/* create barnyard2 configuration file */ +$snortbarnyardlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog']; +if ($snortbarnyardlog_info_chk == on) + create_barnyard2_conf(); /* start snort service */ conf_mount_ro(); start_service("snort"); } +/* open barnyard2.conf for writing */ +function create_barnyard2_conf() { + global $bconfig, $bg; + /* write out barnyard2_conf */ + $barnyard2_conf_text = generate_barnyard2_conf(); +// conf_mount_rw(); + $bconf = fopen("/usr/local/etc/barnyard2.conf", "w"); + if(!$bconf) { + log_error("Could not open /usr/local/etc/barnyard2.conf for writing."); + exit; + } + fwrite($bconf, $barnyard2_conf_text); + fclose($bconf); +// conf_mount_ro(); +} + +/* open barnyard2.conf for writing" */ +function generate_barnyard2_conf() { + + global $config, $g; + conf_mount_rw(); + +/* define snortbarnyardlog */ +$snortbarnyardlog_database_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog_database']; + +$barnyard2_conf_text = <<<EOD + + Copyright (C) 2006 Scott Ullrich + part of pfSense + All rights reserved. +# set the appropriate paths to the file(s) your Snort process is using +config reference-map: /usr/local/etc/snort/reference.config +config class-map: /usr/local/etc/snort/classification.config +config gen-msg-map: /usr/local/etc/snort/gen-msg.map +config sid-msg-map: /usr/local/etc/snort/sid-msg.map + +config hostname: pfsense.local +config interface: vr0 + +# Step 2: setup the input plugins +input unified2 + +# database: log to a variety of databases +# output database: log, mysql, user=snort password=snort123 dbname=snort host=192.168.1.22 + +$snortbarnyardlog_database_info_chk + +EOD; + + return $barnyard2_conf_text; + +} function create_snort_conf() { global $config, $g; /* write out snort.conf */ @@ -241,14 +302,19 @@ $tcpdumplog_info_chk = $config['installedpackages']['snortadvanced']['config'][0 if ($tcpdumplog_info_chk == on) $tcpdumplog_type = "output log_tcpdump: snorttcpd.log"; -/* define snortmysqllog */ -$snortmysqllog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortmysqllog']; - +/* define snortbarnyardlog_chk */ +$snortbarnyardlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortbarnyardlog']; +if ($snortbarnyardlog_info_chk == on) + $snortbarnyardlog_type = "barnyard2 -c /usr/local/etc/barnyard2.conf -d /var/log/snort -f snort.u2 -w /usr/local/etc/snort/barnyard2.waldo -D"; /* define snortunifiedlog */ $snortunifiedlog_info_chk = $config['installedpackages']['snortadvanced']['config'][0]['snortunifiedlog']; if ($snortunifiedlog_info_chk == on) $snortunifiedlog_type = "output unified2: filename snort.u2, limit 128"; +/* define spoink */ +$spoink_info_chk = $config['installedpackages']['snort']['config'][0]['blockoffenders7']; +if ($spoink_info_chk == on) + $spoink_type = "output alert_pf: /var/db/whitelist,snort2c"; /* define servers and ports snortdefservers */ /* def DNS_SERVSERS */ @@ -964,6 +1030,7 @@ $alertsystemlog_type $tcpdumplog_type $snortmysqllog_info_chk $snortunifiedlog_type +$spoink_type ################# # |