mirror of
https://gitlab.com/shorewall/code.git
synced 2024-12-29 17:48:53 +01:00
68 lines
2.2 KiB
Plaintext
68 lines
2.2 KiB
Plaintext
#
|
|
# Shorewall version 4 - Auto Blacklist Action
|
|
#
|
|
# Parameters are:
|
|
#
|
|
# Event - Name of the event to associate with this blacklist
|
|
# Interval
|
|
# Count - Interval and number of Packets to trigger blacklisting
|
|
# Default is 60 seconds and 5 packets.
|
|
# Successive - If a matching packet arrives within this many
|
|
# seconds of the preceding one, it should be logged
|
|
# and dealt with according to the Disposition and
|
|
# Log Level parameters below. Default is 2 seconds.
|
|
# Blacklist time - Number of seconds to blacklist
|
|
# Default is 300 (5 minutes)
|
|
# Disposition - Disposition of blacklisted packets
|
|
# Default is DROP
|
|
# Log Level - Level to Log Rejects
|
|
# Default is info (6)
|
|
#
|
|
?format 2
|
|
DEFAULTS -,60,5,2,300,DROP,info
|
|
|
|
?begin perl
|
|
|
|
use Shorewall::Config;
|
|
|
|
my ( $event, $interval, $count, $successive, $bltime, $disposition, $level ) = get_action_params(7);
|
|
|
|
fatal_error "The event name parameter to AutoBL is required" unless supplied $event;
|
|
fatal_error "Invalid interval ($interval) passed to AutoBL" unless $interval =~ /^\d+$/ && $interval;
|
|
fatal_error "Invalid successive interval ($succesive) passed to AutoBL" unless $successive =~ /^\d+$/;
|
|
fatal_error "Invalid packet count ($count) passed to AutoBL" unless $count =~ /^\d+$/ && $count;
|
|
fatal_error "Invalid blacklist time ($bltime) passed to AutoBL" unless $bltime =~ /^\d+$/ && $bltime;
|
|
validate_level( $level );
|
|
|
|
?end perl
|
|
###############################################################################
|
|
#TARGET SOURCE DEST PROTO DPORT SPORT
|
|
#
|
|
# Silently reject the client if blacklisted
|
|
#
|
|
?if $REAP_OPTION
|
|
?set check_param 'check:reap'
|
|
?else
|
|
?set check_param 'check'
|
|
?endif
|
|
IfEvent(${1}_BL,$6,$5,1,src,$check_param)
|
|
#
|
|
# Blacklist if M attempts in the last N seconds
|
|
#
|
|
IfEvent($1,AutoBLL($1,$6,$7),$2,$3,src,$check_param)
|
|
#
|
|
# Log and reject if the client has tried to connect
|
|
# in the last N seconds
|
|
#
|
|
?if $4
|
|
IfEvent($1,$6:$7,$4,1,-,update,Added)
|
|
?endif
|
|
#
|
|
# Un-blacklist the client
|
|
#
|
|
ResetEvent(${1}_BL,LOG:$7,-,Removed)
|
|
#
|
|
# Set the event and accept the connection
|
|
#
|
|
SetEvent($1,ACCEPT,src)
|