commit 28cca31e3f4cf1d19926982130d63c2f4efe764b
Author: Yaroslav Halchenko <debian@onerussian.com>
Date:   Wed Jul 6 23:10:19 2005 +0000

    [svn-inject] Installing original source of fail2ban

diff --git a/CHANGELOG b/CHANGELOG
new file mode 100644
index 00000000..6cbe1675
--- /dev/null
+++ b/CHANGELOG
@@ -0,0 +1,66 @@
+               __      _ _ ___ _               
+              / _|__ _(_) |_  ) |__  __ _ _ _  
+             |  _/ _` | | |/ /| '_ \/ _` | ' \ 
+             |_| \__,_|_|_/___|_.__/\__,_|_||_|
+
+=============================================================
+Fail2Ban (version 0.4.1)                           06/30/2005
+=============================================================
+
+ver. 0.4.1 (06/30/2005) - stable
+----------
+- Fixed textToDNS method which generated wrong matches for
+  "rhost=12-xyz...". Thanks to Tom Pike
+- fail2ban.conf modified for readability. Thanks to Iain Lea
+- Added an initd script for Gentoo
+- Changed default PID lock file location from /tmp to
+  /var/run
+
+ver. 0.4.0 (04/24/2005) - stable
+----------
+- Fixed textToDNS which did not recognize strings like
+  "12-345-67-890.abcd.mnopqr.xyz"
+
+ver. 0.3.1 (03/31/2005) - beta
+----------
+- Corrected level of messages
+- Added DNS lookup support
+- Improved parsing speed. Only parse the new log messages
+- Added a second verbose level (-vv)
+
+ver. 0.3.0 (02/24/2005) - beta
+----------
+- Re-writting of parts of the code in order to handle several
+  log files with different rules
+- Removed sshd.py because it is no more needed
+- Fixed a bug when exiting with IP in the ban list
+- Added PID lock file
+- Improved some parts of the code
+- Added ipfw-start-rule option (thanks to Robert Edeker)
+- Added -k option which kills a currently running Fail2Ban
+
+ver. 0.1.2 (11/21/2004) - beta
+----------
+- Add ipfw and ipfwadm support. The rules are taken from
+  BlockIt. Thanks to Robert Edeker
+- Add -e option which allows to set the interface. Thanks to
+  Robert Edeker who reminded me this
+- Small code cleaning
+
+ver. 0.1.1 (10/23/2004) - beta
+----------
+- Add SIGTERM handler in order to exit nicely when in daemon
+  mode
+- Add -r option which allows to set the maximum number of
+  login failures
+- Remove the Metalog class as the log file are not so syslog
+  daemon specific
+- Rewrite log reader to be service centered. Sshd support
+  added. Match "Failed password" and "Illegal user"
+- Add /etc/fail2ban.conf configuration support
+- Code documentation
+
+
+ver. 0.1.0 (10/12/2004) - alpha
+----------
+- Initial release
diff --git a/PKG-INFO b/PKG-INFO
new file mode 100644
index 00000000..8f5e3a57
--- /dev/null
+++ b/PKG-INFO
@@ -0,0 +1,10 @@
+Metadata-Version: 1.0
+Name: fail2ban
+Version: 0.4.1
+Summary: Ban IPs that make too many password failure
+Home-page: http://www.sourceforge.net/projects/fail2ban
+Author: Cyril Jaquier
+Author-email: lostcontrol@users.sourceforge.net
+License: UNKNOWN
+Description: UNKNOWN
+Platform: UNKNOWN
diff --git a/README b/README
new file mode 100644
index 00000000..7882c60d
--- /dev/null
+++ b/README
@@ -0,0 +1,145 @@
+               __      _ _ ___ _               
+              / _|__ _(_) |_  ) |__  __ _ _ _  
+             |  _/ _` | | |/ /| '_ \/ _` | ' \ 
+             |_| \__,_|_|_/___|_.__/\__,_|_||_|
+
+=============================================================
+Fail2Ban (version 0.4.1)                           06/30/2005
+=============================================================
+
+Fail2Ban scans log files like /var/log/pwdfail and bans IP
+that makes too many password failures. It updates firewall
+rules to reject the IP address. Currently iptables, ipfw and
+ipfwadm are supported. Fail2Ban can read multiple log files
+such as sshd or Apache web server ones. It needs log4py.
+
+This is my first Python program. Moreover, English is not my
+mother tongue...
+
+
+More details:
+-------------
+
+Fail2Ban is rather simple. I have a home server connected to
+the Internet which runs apache, samba, sshd, ... I see in my
+logs that people are trying to log into my box using "manual"
+brute force or scripts. They try 10, 20 and sometimes more
+user/password (without success anyway). In order to
+discourage these script kiddies, I wanted that sshd refuse
+login from a specific ip after 3 password failures. After
+some Google searches, I found that sshd was not able of that.
+So I search for a script or program that do it. I found
+nothing :-( So I decide to write mine and to learn Python :-)
+
+For each sections defined in the configuration file, Fail2Ban
+tries to find lines which match the failregex. Then it
+retrieves the message time using timeregex and timepattern.
+It finally gets the ip and if it has already done 3 or more
+password failures in the last banTime, the ip is banned for
+banTime using a firewall rule. After banTime, the rule is
+deleted. Notice that if no "plain" ip is available, Fail2Ban
+try to do DNS lookup in order to found one or several ip's to
+ban.
+
+Sections can be freely added so it is possible to monitor
+several daemons at the same time.
+
+Runs on my server and does its job rather well :-) The idea
+is to make fail2ban usable with daemons and services that
+require a login (sshd, telnetd, ...). It should also support
+others firewalls than iptables.
+
+
+Installation:
+-------------
+
+Require: python-2.3 (http://www.python.org)
+         log4py-1.1 (http://sourceforge.net/projects/log4py)
+
+To install, just do:
+
+> tar xvfj fail2ban-0.4.1.tar.bz2
+> cd fail2ban-0.4.1
+> python setup.py install
+
+This will install Fail2Ban into /usr/lib/fail2ban. The
+fail2ban.py executable is placed into /usr/bin.
+
+For Gentoo users, an ebuild is available on the website.
+
+Fail2Ban should now be correctly installed. Just type:
+
+> fail2ban.py -h
+
+to see if everything is alright. You can configure fail2ban
+with a config file. Copy config/fail2ban.conf.default to
+/etc/fail2ban.conf.
+
+Gentoo users can use the initd script available in config/.
+Copy gentoo-initd to /etc/init.d/fail2ban and gentoo-confd
+to /etc/conf.d/fail2ban. You can start fail2ban and add it
+to your default runlevel:
+
+> /etc/init.d/fail2ban start
+> rc-update add fail2ban default
+
+Configuration:
+--------------
+
+You can configure fail2ban using the file /etc/fail2ban.conf
+or using command line options. Command line options override
+the value stored in fail2ban.conf. Here are the command line
+options:
+
+  -b         start fail2ban in background
+  -d         start fail2ban in debug mode
+  -e <INTF>  ban IP on the INTF interface
+  -c <FILE>  read configuration file FILE
+  -p <FILE>  create PID lock in FILE
+  -h         display this help message
+  -i <IP(s)> IP(s) to ignore
+  -k         kill a currently running Fail2Ban instance
+  -l <FILE>  log message in FILE
+  -r <VALUE> allow a max of VALUE password failure
+  -t <TIME>  ban IP for TIME seconds
+  -v         verbose. Use twice for greater effect
+  -w <FIWA>  select the firewall to use. Can be iptables,
+             ipfwadm or ipfw
+
+Contact:
+--------
+
+You need some new features, you found bugs or you just
+appreciate this program, you can contact me at :
+
+Website: http://www.sourceforge.net/projects/fail2ban
+
+Cyril Jaquier: <lostcontrol@users.sourceforge.net>
+
+
+Thanks:
+-------
+
+Kévin Drapel, Marvin Rouge, Sireyessire, Robert Edeker,
+Tom Pike, Iain Lea
+
+
+License:
+--------
+
+Fail2Ban is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later
+version.
+
+Fail2Ban is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied
+warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+PURPOSE.  See the GNU General Public License for more
+details.
+
+You should have received a copy of the GNU General Public
+License along with Fail2Ban; if not, write to the Free
+Software Foundation, Inc., 59 Temple Place, Suite 330,
+Boston, MA  02111-1307  USA
diff --git a/TODO b/TODO
new file mode 100644
index 00000000..569a127c
--- /dev/null
+++ b/TODO
@@ -0,0 +1,15 @@
+               __      _ _ ___ _               
+              / _|__ _(_) |_  ) |__  __ _ _ _  
+             |  _/ _` | | |/ /| '_ \/ _` | ' \ 
+             |_| \__,_|_|_/___|_.__/\__,_|_||_|
+
+=============================================================
+ToDo
+=============================================================
+
+- cleanup fail2ban.py
+- improve configuration file and command line options
+  handling
+- improve installation process
+- add init script
+- use FAM (inotify, gamin, ...)
diff --git a/config/fail2ban.conf.default b/config/fail2ban.conf.default
new file mode 100644
index 00000000..4a9cafd1
--- /dev/null
+++ b/config/fail2ban.conf.default
@@ -0,0 +1,143 @@
+# Fail2Ban configuration file
+#
+# $Revision: 1.8 $
+#
+# 2005.06.21  modified for readability  Iain Lea  iain@bricbrac.de
+
+[DEFAULT]
+# Option:  firewall
+# Notes.:  select the firewall system to use.
+# Values:  [iptables | ipfwadm | ipfw]  Default:  iptables
+#
+firewall = iptables
+
+# Option:  ipfw-start-rule
+# Notes.:  set first firewall rule number used (only used if firewall = ipfw).
+# Values:  NUM  Default:  100
+#
+ipfw-start-rule = 100
+
+# Option:  background
+# Notes.:  start fail2ban as a daemon. Output is redirect to logfile.
+# Values:  [true | false]  Default:  false
+#
+background = false
+
+# Option:  debug
+# Notes.:  enable debug mode. More verbose output and bypass root user test.
+# Values:  [true | false]  Default:  false
+#
+debug = false
+
+# Option:  pidlock
+# Notes.:  path of the PID lock file (must be able to write to file).
+# Values:  FILE  Default:  /var/run/fail2ban.pid
+#
+pidlock = /var/run/fail2ban.pid
+
+# Option:  logfile
+# Notes.:  logfile for logging fail2ban messages.
+# Values:  FILE  Default:  /var/log/fail2ban.log
+#
+logfile = /var/log/fail2ban.log
+
+# Option:  maxretry
+# Notes.:  number of retrys before IP gets banned.
+# Values:  NUM  Default:  3
+#
+maxretry = 3
+
+# Option:  bantime
+# Notes.:  number of seconds an IP will be banned.
+# Values:  NUM  Default:  600
+#
+bantime = 600
+
+# Option:  ignoreip
+# Notes.:  space separated list of IP's to be ignored by fail2ban
+#          Example:  ignoreip = 192.168.0.1 123.45.235.65
+# Values:  IP  Default:  
+#
+ignoreip = 
+
+# Option:  interface
+# Notes.:  interface name on which the IP will be banned.
+# Values:  INT  Default:  eth0
+#
+interface = eth0
+
+# Option:  polltime
+# Notes.:  number of seconds fail2ban sleeps between iterations.
+# Values:  NUM  Default:  1
+#
+polltime = 1
+
+# You can define a new section for each log file to check for
+# password failure. Each section has to define the following
+# options: logfile, timeregex, timepattern, failregex.
+
+[Apache]
+# Option:  enabled
+# Notes.:  enable monitoring for this section.
+# Values:  [true | false]  Default:  false
+#
+enabled = false
+
+# Option:  logfile
+# Notes.:  logfile to monitor.
+# Values:  FILE  Default:  /var/log/httpd/access_log
+#
+logfile = /var/log/httpd/access_log
+
+# Option:  timeregex
+# Notes.:  regex to match timestamp in Apache logfile.
+# Values:  [Wed Jan 05 15:08:01 2005]  
+# Default  \S{3} \S{3} \d{2} \d{2}:\d{2}:\d{2} \d{4}
+#
+timeregex = \S{3} \S{3} \d{2} \d{2}:\d{2}:\d{2} \d{4}
+
+# Option:  timepattern
+# Notes.:  format used in "timeregex" fields definition. Note that '%' must be
+#          escaped with '%' (see http://rgruet.free.fr/PQR2.3.html#timeModule)
+# Values:  TEXT  Default:  %%a %%b %%d %%H:%%M:%%S %%Y
+#
+timepattern = %%a %%b %%d %%H:%%M:%%S %%Y
+
+# Option:  failregex
+# Notes.:  regex to match the password failure messages in the logfile.
+# Values:  TEXT  Default:  authentication failure|user .* not found
+#
+failregex = authentication failure|user .* not found
+
+[SSH]
+# Option:  enabled
+# Notes.:  enable monitoring for this section.
+# Values:  [true | false]  Default:  true
+#
+enabled = true
+
+# Option:  logfile
+# Notes.:  logfile to monitor.
+# Values:  FILE  Default:  /var/log/secure
+#
+logfile = /var/log/secure
+
+# Option:  timeregex
+# Notes.:  regex to match timestamp in SSH logfile.
+# Values:  [Mar  7 17:53:28]  
+# Default  \S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}
+#
+timeregex = \S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}
+
+# Option:  timepattern
+# Notes.:  format used in "timeregex" fields definition. Note that '%' must be
+#          escaped with '%' (see http://rgruet.free.fr/PQR2.3.html#timeModule)
+# Values:  TEXT  Default:  %%b %%d %%H:%%M:%%S
+#
+timepattern = %%b %%d %%H:%%M:%%S
+
+# Option:  failregex
+# Notes.:  regex to match the password failures messages in the logfile.
+# Values:  TEXT  Default:  Authentication failure|Failed password|Invalid user
+#
+failregex = Authentication failure|Failed password|Invalid user
diff --git a/config/gentoo-confd b/config/gentoo-confd
new file mode 100644
index 00000000..94f91d8e
--- /dev/null
+++ b/config/gentoo-confd
@@ -0,0 +1,23 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.1 $
+
+# Command line options for Fail2Ban. Refer to "fail2ban.py -h" for
+# valid options.
+FAIL2BAN_OPTS="-v"
diff --git a/config/gentoo-initd b/config/gentoo-initd
new file mode 100755
index 00000000..a3047942
--- /dev/null
+++ b/config/gentoo-initd
@@ -0,0 +1,50 @@
+#!/sbin/runscript
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# Author: Sireyessire, Cyril Jaquier
+# 
+# $Revision: 1.1 $
+
+opts="start stop restart showlog"
+
+FAIL2BAN="/usr/bin/fail2ban.py"
+
+depend() {
+	need net
+	need logger
+	after iptables
+}
+
+start() {
+	ebegin "Starting fail2ban"
+	${FAIL2BAN} -b ${FAIL2BAN_OPTS}
+	eend $? "Failed to start fail2ban"
+}
+
+stop() {
+	ebegin "Stopping fail2ban"
+	${FAIL2BAN} -k
+	eend $? "Failed to stop fail2ban"
+}
+
+zap() {
+	rm /var/run/fail2ban.pid
+}
+
+showlog(){
+	less /var/log/fail2ban.log
+}
diff --git a/confreader/__init__.py b/confreader/__init__.py
new file mode 100644
index 00000000..b920907f
--- /dev/null
+++ b/confreader/__init__.py
@@ -0,0 +1,25 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.1 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.1 $"
+__date__ = "$Date: 2005/02/18 13:26:41 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
\ No newline at end of file
diff --git a/confreader/configreader.py b/confreader/configreader.py
new file mode 100644
index 00000000..4f936a19
--- /dev/null
+++ b/confreader/configreader.py
@@ -0,0 +1,80 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.5 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.5 $"
+__date__ = "$Date: 2005/03/06 17:45:55 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+from ConfigParser import *
+
+class ConfigReader:
+	""" This class allow the handling of the configuration options.
+		The DEFAULT section contains the global information about
+		Fail2Ban. Each other section is for a different log file.
+	"""
+	
+	# Each optionValues entry is composed of an array with:
+	# 0 -> the type of the option
+	# 1 -> the name of the option
+	# 2 -> the default value for the option
+	optionValues = (["bool", "enabled", True],
+					["str", "logfile", "/dev/null"],
+					["str", "timeregex", ""],
+					["str", "timepattern", ""],
+					["str", "failregex", ""])
+	
+	def __init__(self, logSys, confPath):
+		self.confPath = confPath
+		self.configParser = SafeConfigParser()
+		self.logSys = logSys
+		
+	def openConf(self):
+		""" Opens the configuration file.
+		"""
+		self.configParser.read(self.confPath)
+	
+	def getSections(self):
+		""" Returns all the sections present in the configuration
+			file except the DEFAULT section.
+		"""
+		return self.configParser.sections()
+		
+	def getLogOptions(self, sec):
+		""" Gets all the options of a given section. The options
+			are defined in the optionValues list.
+		"""
+		values = dict()
+		for option in self.optionValues:
+			try:
+				if option[0] == "bool":
+					v = self.configParser.getboolean(sec, option[1])
+				elif option[0] == "int":
+					v = self.configParser.getint(sec, option[1])
+				else:
+					v = self.configParser.get(sec, option[1])
+				
+				values[option[1]] = v
+			except NoOptionError:
+				self.logSys.warn("No '"+option[1]+"' defined in '"+sec+"'")
+				values[option[1]] = option[2]
+		return values
+		
\ No newline at end of file
diff --git a/fail2ban.py b/fail2ban.py
new file mode 100755
index 00000000..56fe4976
--- /dev/null
+++ b/fail2ban.py
@@ -0,0 +1,551 @@
+#!/usr/bin/env python
+
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.20 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.20 $"
+__date__ = "$Date: 2005/06/30 09:26:38 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+import time, sys, getopt, os, signal, string
+from ConfigParser import *
+
+# Checks if log4py is present.
+try:
+	import log4py
+except:
+	print "log4py is needed (see README)"
+	sys.exit(-1)
+
+# Appends our own modules path
+sys.path.append('/usr/lib/fail2ban')
+
+from firewall.iptables import Iptables
+from firewall.ipfw import Ipfw
+from firewall.ipfwadm import Ipfwadm
+from logreader.logreader import LogReader
+from confreader.configreader import ConfigReader
+from version import version
+
+def usage():
+	print "Usage: fail2ban.py [OPTIONS]"
+	print
+	print "Fail2Ban v"+version+" reads log file that contains password failure report"
+	print "and bans the corresponding IP address using iptables."
+	print
+	print "  -b         start fail2ban in background"
+	print "  -d         start fail2ban in debug mode"
+	print "  -e <INTF>  ban IP on the INTF interface"
+	print "  -c <FILE>  read configuration file FILE"
+	print "  -p <FILE>  create PID lock in FILE"
+	print "  -h         display this help message"
+	print "  -i <IP(s)> IP(s) to ignore"
+	print "  -k         kill a currently running Fail2Ban instance"
+	print "  -l <FILE>  log message in FILE"
+	print "  -r <VALUE> allow a max of VALUE password failure"
+	print "  -t <TIME>  ban IP for TIME seconds"
+	print "  -v         verbose. Use twice for greater effect"
+	print "  -w <FIWA>  select the firewall to use. Can be iptables,"
+	print "             ipfwadm or ipfw"
+	print
+	print "Report bugs to <lostcontrol@users.sourceforge.net>"
+	sys.exit(0)
+
+def checkForRoot():
+	""" Check for root user.
+	"""
+	uid = `os.getuid()`
+	if uid == '0':
+		return True
+	else:
+		return False
+
+def createDaemon():
+	"""Detach a process from the controlling terminal and run it in the
+	background as a daemon.
+	
+	http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/278731
+	"""
+
+	try:
+		# Fork a child process so the parent can exit.  This will return control
+		# to the command line or shell.  This is required so that the new process
+		# is guaranteed not to be a process group leader.  We have this guarantee
+		# because the process GID of the parent is inherited by the child, but
+		# the child gets a new PID, making it impossible for its PID to equal its
+		# PGID.
+		pid = os.fork()
+	except OSError, e:
+		return((e.errno, e.strerror))	 # ERROR (return a tuple)
+
+	if (pid == 0):	   # The first child.
+
+		# Next we call os.setsid() to become the session leader of this new
+		# session.  The process also becomes the process group leader of the
+		# new process group.  Since a controlling terminal is associated with a
+		# session, and this new session has not yet acquired a controlling
+		# terminal our process now has no controlling terminal.  This shouldn't
+		# fail, since we're guaranteed that the child is not a process group
+		# leader.
+		os.setsid()
+	
+		# When the first child terminates, all processes in the second child
+		# are sent a SIGHUP, so it's ignored.
+		signal.signal(signal.SIGHUP, signal.SIG_IGN)
+	
+		try:
+			# Fork a second child to prevent zombies.  Since the first child is
+			# a session leader without a controlling terminal, it's possible for
+			# it to acquire one by opening a terminal in the future.  This second
+			# fork guarantees that the child is no longer a session leader, thus
+			# preventing the daemon from ever acquiring a controlling terminal.
+			pid = os.fork()		# Fork a second child.
+		except OSError, e:
+			return((e.errno, e.strerror))  # ERROR (return a tuple)
+	
+		if (pid == 0):	  # The second child.
+			# Ensure that the daemon doesn't keep any directory in use.  Failure
+			# to do this could make a filesystem unmountable.
+			os.chdir("/")
+			# Give the child complete control over permissions.
+			os.umask(0)
+		else:
+			os._exit(0)	  # Exit parent (the first child) of the second child.
+	else:
+		os._exit(0)		 # Exit parent of the first child.
+
+	# Close all open files.  Try the system configuration variable, SC_OPEN_MAX,
+	# for the maximum number of open files to close.  If it doesn't exist, use
+	# the default value (configurable).
+	try:
+		maxfd = os.sysconf("SC_OPEN_MAX")
+	except (AttributeError, ValueError):
+		maxfd = 256	   # default maximum
+
+	for fd in range(0, maxfd):
+		try:
+			os.close(fd)
+		except OSError:   # ERROR (ignore)
+			pass
+
+	# Redirect the standard file descriptors to /dev/null.
+   	os.open("/dev/null", os.O_RDONLY)	# standard input (0)
+	os.open("/dev/null", os.O_RDWR)		# standard output (1)
+	os.open("/dev/null", os.O_RDWR)		# standard error (2)
+
+	return True
+
+def sigTERMhandler(signum, frame):
+	""" Handles the TERM signal when in daemon mode in order to
+		exit properly.
+	"""
+	logSys.debug("Signal handler called with sig "+`signum`)
+	killApp()
+
+def killApp():
+	""" Flush the ban list, remove the PID lock file and exit
+		nicely.
+	"""
+	logSys.warn("Restoring firewall rules...")
+	fireWall.flushBanList(conf["debug"])
+	removePID(conf["pidlock"])
+	logSys.info("Exiting...")
+	sys.exit(0)
+	
+def checkForPID(lockfile):
+	""" Checks for running Fail2Ban.
+	
+		Returns the current PID if Fail2Ban is running or False
+		if no instance found.
+	"""
+	try:
+		fileHandler = open(lockfile)
+		pid = fileHandler.readline()
+		return pid
+	except IOError:
+		return False
+		
+def createPID(lockfile):
+	""" Creates a PID lock file with the current PID.
+	"""
+	fileHandler = open(lockfile, mode='w')
+	pid = os.getpid()
+	fileHandler.write(`pid`+'\n')
+	fileHandler.close()
+	logSys.debug("Created PID lock ("+`pid`+") in "+lockfile)
+		
+def removePID(lockfile):
+	""" Remove PID lock.
+	"""
+	os.remove(lockfile)
+	logSys.debug("Removed PID lock "+lockfile)
+
+def killPID(pid):
+	""" Kills the process with the given PID using the
+		INT signal (same effect as <ctrl>+<c>).
+	"""
+	try:
+		return os.kill(pid, 2)
+	except OSError:
+		logSys.error("Can not kill process " + `pid` + ". Please check that " +
+					"Fail2Ban is not running and remove the file " +
+					"'/tmp/fail2ban.pid'")
+
+if __name__ == "__main__":
+	
+	# Gets an instance of log4py.
+	logSys = log4py.Logger().get_instance()
+	logSys.set_formatstring("%T %L %M")
+	
+	conf = dict()
+	conf["verbose"] = 0
+	conf["background"] = False
+	conf["debug"] = False
+	conf["conffile"] = "/etc/fail2ban.conf"
+	conf["pidlock"] = "/var/run/fail2ban.pid"
+	conf["logging"] = False
+	conf["logfile"] = "/var/log/fail2ban.log"
+	conf["maxretry"] = 3
+	conf["bantime"] = 600
+	conf["ignoreip"] = ''
+	conf["interface"] = "eth0"
+	conf["firewall"] = "iptables"
+	conf["ipfw-start-rule"] = 0
+	conf["polltime"] = 1
+	
+	# Reads the command line options.
+	try:
+		optList, args = getopt.getopt(sys.argv[1:], 'hvbdkc:l:t:i:r:e:w:p:')
+	except getopt.GetoptError:
+		usage()
+	
+	# Pre-parsing of command line options for the -c option
+	for opt in optList:
+		if opt[0] == "-c":
+			conf["conffile"] = opt[1]
+	
+	# Config file
+	configParser = SafeConfigParser()
+	configParser.read(conf["conffile"])
+	
+	# background
+	try:
+		conf["background"] = configParser.getboolean("DEFAULT", "background")
+	except ValueError:
+		logSys.warn("background option should be a boolean")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("background option not in config file")
+		logSys.warn("Using default value")
+
+	# debug
+	try:
+		conf["debug"] = configParser.getboolean("DEFAULT", "debug")
+	except ValueError:
+		logSys.warn("debug option should be a boolean")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("debug option not in config file")
+		logSys.warn("Using default value")
+
+	# logfile
+	try:
+		conf["logfile"] = configParser.get("DEFAULT", "logfile")
+	except ValueError:
+		logSys.warn("logfile option should be a string")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("logfile option not in config file")
+		logSys.warn("Using default value")
+		
+	# pidlock
+	try:
+		conf["pidlock"] = configParser.get("DEFAULT", "pidlock")
+	except ValueError:
+		logSys.warn("pidlock option should be a string")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("pidlock option not in config file")
+		logSys.warn("Using default value")
+		
+	# maxretry
+	try:
+		conf["maxretry"] = configParser.getint("DEFAULT", "maxretry")
+	except ValueError:
+		logSys.warn("maxretry option should be an integer")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("maxretry option not in config file")
+		logSys.warn("Using default value")
+
+	# bantime
+	try:
+		conf["bantime"] = configParser.getint("DEFAULT", "bantime")
+	except ValueError:
+		logSys.warn("bantime option should be an integer")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("bantime option not in config file")
+		logSys.warn("Using default value")
+
+	# ignoreip
+	try:
+		conf["ignoreip"] = configParser.get("DEFAULT", "ignoreip")
+	except ValueError:
+		logSys.warn("ignoreip option should be a string")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("ignoreip option not in config file")
+		logSys.warn("Using default value")
+		
+	# interface
+	try:
+		conf["interface"] = configParser.get("DEFAULT", "interface")
+	except ValueError:
+		logSys.warn("interface option should be a string")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("interface option not in config file")
+		logSys.warn("Using default value")
+		
+	# firewall
+	try:
+		conf["firewall"] = configParser.get("DEFAULT", "firewall")
+	except ValueError:
+		logSys.warn("firewall option should be a string")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("firewall option not in config file")
+		logSys.warn("Using default value")
+	
+	# ipfw-start-rule
+	try:
+		conf["ipfw-start-rule"] = configParser.getint("DEFAULT",
+													"ipfw-start-rule")
+	except ValueError:
+		logSys.warn("ipfw-start-rule option should be an integer")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("ipfw-start-rule option not in config file")
+		logSys.warn("Using default value")
+
+	# polltime
+	try:
+		conf["polltime"] = configParser.getint("DEFAULT", "polltime")
+	except ValueError:
+		logSys.warn("polltime option should be an integer")
+		logSys.warn("Using default value")
+	except NoOptionError:
+		logSys.warn("polltime option not in config file")
+		logSys.warn("Using default value")
+	
+	for opt in optList:
+		if opt[0] == "-h":
+			usage()
+		if opt[0] == "-v":
+			conf["verbose"] = conf["verbose"] + 1
+		if opt[0] == "-b":
+			conf["background"] = True
+		if opt[0] == "-d":
+			conf["debug"] = True
+		if opt[0] == "-e":
+			conf["interface"] = opt[1]
+		if opt[0] == "-l":
+			conf["logging"] = True
+			conf["logfile"] = opt[1]
+		if opt[0] == "-t":
+			try:
+				conf["bantime"] = int(opt[1])
+			except ValueError:
+				logSys.warn("banTime must be an integer")
+				logSys.warn("Using default value")
+		if opt[0] == "-i":
+			conf["ignoreip"] = opt[1]
+		if opt[0] == "-r":
+			conf["retrymax"] = int(opt[1])
+		if opt[0] == "-w":
+			conf["firewall"] = opt[1]
+		if opt[0] == "-p":
+			conf["pidlock"] = opt[1]
+		if opt[0] == "-k":
+			pid = checkForPID(conf["pidlock"])
+			if pid:
+				killPID(int(pid))
+				logSys.warn("Killed Fail2Ban with PID "+pid)
+				sys.exit(0)
+			else:
+				logSys.error("No running Fail2Ban found")
+				sys.exit(-1)
+
+	# Process some options
+	for c in conf:
+		if c == "verbose":
+			logSys.warn("Verbose level is "+`conf[c]`)
+			if conf[c] == 1:
+				logSys.set_loglevel(log4py.LOGLEVEL_VERBOSE)
+			elif conf[c] > 1:
+				logSys.set_loglevel(log4py.LOGLEVEL_DEBUG)
+		elif c == "debug" and conf[c]:
+			logSys.set_loglevel(log4py.LOGLEVEL_DEBUG)
+			logSys.set_formatstring(log4py.FMT_DEBUG)
+		elif c == "background" and conf[c]:
+			retCode = createDaemon()
+			signal.signal(signal.SIGTERM, sigTERMhandler)
+			logSys.set_target(conf["logfile"])
+			if not retCode:
+				logSys.error("Unable to start daemon")
+				sys.exit(-1)
+		elif c == "logging" and conf[c]:
+			try:
+				open(conf["logfile"], "a")
+				logSys.set_target(conf["logfile"])
+			except IOError:
+				logSys.warn("Unable to log to "+conf["logfile"])
+				logSys.warn("Using default output for logging")
+		elif c == "ignoreip":
+			ignoreIPList = conf[c].split(' ')
+		elif c == "firewall":
+			conf[c] = string.lower(conf[c])
+			if conf[c] == "ipfw":
+				fireWallName = "Ipfw"
+			elif conf[c] == "ipfwadm":
+				fireWallName = "Ipfwadm"
+			else:
+				fireWallName = "Iptables"
+	
+	# Checks for root user. This is necessary because log files
+	# are owned by root and firewall needs root access.
+	if not checkForRoot():
+		logSys.error("You must be root")
+		if not conf["debug"]:
+			sys.exit(-1)
+			
+	# Checks that no instance of Fail2Ban is currently running.
+	pid = checkForPID(conf["pidlock"])
+	if pid:
+		logSys.error("Fail2Ban already running with PID "+pid)
+		sys.exit(-1)
+	else:
+		createPID(conf["pidlock"])
+	
+	logSys.debug("ConfFile is "+conf["conffile"])
+	logSys.debug("BanTime is "+`conf["bantime"]`)
+	logSys.debug("retryAllowed is "+`conf["maxretry"]`)
+	
+	# Reads the config file and create a LogReader instance for
+	# each log file to check.
+	confReader = ConfigReader(logSys, conf["conffile"]);
+	confReader.openConf()
+	logList = list()
+	for t in confReader.getSections():
+		l = confReader.getLogOptions(t)
+		if l["enabled"]:
+			lObj = LogReader(logSys, l["logfile"], l["timeregex"],
+							l["timepattern"], l["failregex"], conf["bantime"])
+			lObj.setName(t)
+			logList.append(lObj)
+	
+	# Creates one instance of Iptables (thanks to Pyhton dynamic
+	# features).
+	fireWallObj = eval(fireWallName)
+	fireWall = fireWallObj(conf["bantime"], logSys, conf["interface"])
+	
+	# IPFW needs rules number. The configuration option "ipfw-start-rule"
+	# defines the first rule number used by Fail2Ban.
+	if fireWallName == "Ipfw":
+		fireWall.setCrtRuleNbr(conf["ipfw-start-rule"])
+	
+	# We add 127.0.0.1 to the ignore list has we do not want
+	# to be ban ourself.
+	for element in logList:
+		element.addIgnoreIP("127.0.0.1")
+	while len(ignoreIPList) > 0:
+		ip = ignoreIPList.pop()
+		for element in logList:
+			element.addIgnoreIP(ip)
+	
+	logSys.info("Fail2Ban v"+version+" is running")
+	failListFull = dict()
+	# Main loop
+	while True:
+		try:
+			sys.stdout.flush()
+			sys.stderr.flush()
+			
+			# Checks if some IP have to be remove from ban
+			# list.
+			fireWall.checkForUnBan(conf["debug"])
+			
+			# If the log file has not been modified since the
+			# last time, we sleep for 1 second. This is active
+			# polling so not very effective.
+			modList = list()
+			for element in logList:
+				if element.isModified():
+					modList.append(element)
+			
+			if len(modList) == 0:
+				time.sleep(conf["polltime"])
+				continue
+			
+			# Gets the failure list from the log file. For a given IP,
+			# takes only the service which has the most password failures.
+			failList = dict()
+			for element in modList:
+				e = element.getFailures()
+				for key in e.iterkeys():
+					if failList.has_key(key):
+						if failList[key][0] < e[key][0]:
+							failList[key] = (e[key][0], e[key][1], element)
+					else:
+						failList[key] = (e[key][0], e[key][1], element)
+				
+			# Add the last log failures to the global failure list.
+			for key in failList.iterkeys():
+				if failListFull.has_key(key):
+					failListFull[key] = (failListFull[key][0] + 1,
+										failList[key][1], failList[key][2])
+				else:
+					failListFull[key] = failList[key]
+			
+			# Remove the oldest failure attempts from the global list.
+			unixTime = time.time()
+			failListFullTemp = failListFull.copy()
+			for key in failListFullTemp.iterkeys():
+				failTime = failListFullTemp[key][2].getFindTime()
+				if failListFullTemp[key][1] < unixTime - failTime:
+					del failListFull[key]
+			
+			# We iterate the failure list and ban IP that make
+			# *retryAllowed* login failures.
+			failListFullTemp = failListFull.copy()
+			for key in failListFullTemp.iterkeys():
+				element = failListFullTemp[key]
+				if element[0] >= conf["maxretry"]:
+					logSys.info(element[2].getName()+": "+key+" has "+
+								`element[0]`+" login failure(s). Banned.")
+					fireWall.addBanIP(key, conf["debug"])
+					del failListFull[key]
+			
+		except KeyboardInterrupt:
+			# When the user press <ctrl>+<c> we exit nicely.
+			killApp()
diff --git a/firewall/__init__.py b/firewall/__init__.py
new file mode 100644
index 00000000..f25221f9
--- /dev/null
+++ b/firewall/__init__.py
@@ -0,0 +1,25 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.1 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.1 $"
+__date__ = "$Date: 2004/10/09 15:33:33 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
\ No newline at end of file
diff --git a/firewall/firewall.py b/firewall/firewall.py
new file mode 100644
index 00000000..caf455a0
--- /dev/null
+++ b/firewall/firewall.py
@@ -0,0 +1,98 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.8 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.8 $"
+__date__ = "$Date: 2005/03/06 17:46:56 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+import time, os
+
+class Firewall:
+	""" Manages the ban list and executes the command that ban
+		the IP.
+	"""
+	
+	banList = dict()
+	
+	def __init__(self, banTime, logSys, interface):
+		self.banTime = banTime
+		self.logSys = logSys
+		self.interface = interface
+	
+	def addBanIP(self, ip, debug):
+		""" Bans an IP.
+		"""
+		if not self.inBanList(ip):
+			self.logSys.warn("Ban "+ip)
+			self.banList[ip] = time.time()
+			self.__executeCmd(self.banIP(ip), debug)
+		else:
+			self.logSys.error(ip+" already in ban list")
+	
+	def delBanIP(self, ip, debug):
+		""" Unban an IP.
+		"""
+		if self.inBanList(ip):
+			self.logSys.warn("Unban "+ip)
+			del self.banList[ip]
+			self.__executeCmd(self.unBanIP(ip), debug)
+		else:
+			self.logSys.error(ip+" not in ban list")
+	
+	def inBanList(self, ip):
+		""" Checks if IP is in ban list.
+		"""
+		return self.banList.has_key(ip)
+	
+	def checkForUnBan(self, debug):
+		""" Check for IP to remove from ban list.
+		"""
+		banListTemp = self.banList.copy()
+		for element in banListTemp.iteritems():
+			ip = element[0]
+			btime = element[1]
+			if btime < time.time()-self.banTime:
+				self.delBanIP(ip, debug)
+	
+	def flushBanList(self, debug):
+		""" Flushes the ban list and of course the firewall rules.
+			Called when fail2ban exits.
+		"""
+		banListTemp = self.banList.copy()
+		for element in banListTemp.iteritems():
+			ip = element[0]
+			self.delBanIP(ip, debug)
+	
+	def __executeCmd(self, cmd, debug):
+		""" Executes an OS command.
+		"""
+		self.logSys.debug(cmd)
+		if not debug:
+			return os.system(cmd)
+		else:
+			return None
+		
+	def viewBanList(self):
+		""" Prints the ban list on screen. Usefull for debugging.
+		"""
+		for element in self.banList.iteritems():
+			print element
diff --git a/firewall/ipfw.py b/firewall/ipfw.py
new file mode 100644
index 00000000..a19594d6
--- /dev/null
+++ b/firewall/ipfw.py
@@ -0,0 +1,72 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.4 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.4 $"
+__date__ = "$Date: 2005/03/06 17:47:51 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+import os
+
+from firewall import Firewall
+
+class Ipfw(Firewall):
+	""" This class contains specific methods and variables for the
+		iptables firewall. Must implements the 'abstracts' methods
+		banIP(ip) and unBanIP(ip).
+		
+		Must adds abstract methods definition:
+		http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/266468
+	"""
+	
+	crtRuleNbr = 0
+	
+	def getCrtRuleNbr(self):
+		""" Gets the current rule number.
+		"""
+		return self.crtRuleNbr
+		
+	def setCrtRuleNbr(self, value):
+		""" Sets the current rule number.
+		"""
+		self.crtRuleNbr = value
+	
+	def banIP(self, ip):
+		""" Returns query to ban IP.
+		"""
+		query = "ipfw -q add "+`self.crtRuleNbr`+" deny ip from "+ip+" to any"
+		self.crtRuleNbr = self.crtRuleNbr + 1
+		return query
+	
+	def unBanIP(self, ip):
+		""" Returns query to unban IP.
+		"""
+		ruleNbr = str(self.__findRuleNumber(ip))
+		query = "ipfw -q delete "+ruleNbr
+		return query
+		
+	def __findRuleNumber(self, ip):
+		""" Uses shell commands in order to find the rule
+			number we want to delete.
+		"""
+		output = os.popen("ipfw list|grep \"from "+ip+" to\"|awk '{print $1}'",
+						  "r");
+		return output.read()
diff --git a/firewall/ipfwadm.py b/firewall/ipfwadm.py
new file mode 100644
index 00000000..a87e51e7
--- /dev/null
+++ b/firewall/ipfwadm.py
@@ -0,0 +1,48 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.1 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.1 $"
+__date__ = "$Date: 2004/11/06 14:02:27 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+from firewall import Firewall
+
+class Ipfwadm(Firewall):
+	""" This class contains specific methods and variables for the
+		iptables firewall. Must implements the 'abstracts' methods
+		banIP(ip) and unBanIP(ip).
+		
+		Must adds abstract methods definition:
+		http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/266468
+	"""
+	
+	def banIP(self, ip):
+		""" Returns query to ban IP.
+		"""
+		query = "ipfwadm -I -a deny -W "+self.interface+" -S "+ip
+		return query
+	
+	def unBanIP(self, ip):
+		""" Returns query to unban IP.
+		"""
+		query = "ipfwadm -I -d deny -W "+self.interface+" -S "+ip
+		return query
diff --git a/firewall/iptables.py b/firewall/iptables.py
new file mode 100644
index 00000000..a1c6f532
--- /dev/null
+++ b/firewall/iptables.py
@@ -0,0 +1,48 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.5 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.5 $"
+__date__ = "$Date: 2004/11/06 14:02:07 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+from firewall import Firewall
+
+class Iptables(Firewall):
+	""" This class contains specific methods and variables for the
+		iptables firewall. Must implements the 'abstracts' methods
+		banIP(ip) and unBanIP(ip).
+		
+		Must adds abstract methods definition:
+		http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/266468
+	"""
+	
+	def banIP(self, ip):
+		""" Returns query to ban IP.
+		"""
+		query = "iptables -I INPUT 1 -i "+self.interface+" -s "+ip+" -j DROP"
+		return query
+	
+	def unBanIP(self, ip):
+		""" Returns query to unban IP.
+		"""
+		query = "iptables -D INPUT -i "+self.interface+" -s "+ip+" -j DROP"
+		return query
diff --git a/logreader/__init__.py b/logreader/__init__.py
new file mode 100644
index 00000000..60ef5531
--- /dev/null
+++ b/logreader/__init__.py
@@ -0,0 +1,25 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.1 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.1 $"
+__date__ = "$Date: 2004/10/10 13:33:40 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
\ No newline at end of file
diff --git a/logreader/logreader.py b/logreader/logreader.py
new file mode 100644
index 00000000..bd7f3f63
--- /dev/null
+++ b/logreader/logreader.py
@@ -0,0 +1,189 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.13 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.13 $"
+__date__ = "$Date: 2005/03/31 15:45:24 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+import os, sys, time, re
+
+from utils.dns import *
+
+class LogReader:
+	""" Reads a log file and reports information about IP that make password
+		failure, bad user or anything else that is considered as doubtful login
+		attempt.	
+	"""
+	
+	def __init__(self, logSys, logPath, timeregex, timepattern, failregex,
+		findTime = 3600):
+		self.logPath = logPath
+		self.timeregex = timeregex
+		self.timepattern = timepattern
+		self.failregex = failregex
+		self.findTime = findTime
+		self.ignoreIpList = []
+		self.lastModTime = 0
+		self.logSys = logSys
+		self.lastPos = 0
+		self.lastDate = 0
+		self.logStats = None
+		
+	def setName(self, name):
+		""" Sets the name of the log reader.
+		"""
+		self.name = name
+		
+	def getName(self):
+		""" Gets the name of the log reader.
+		"""
+		return self.name
+	
+	def getFindTime(self):
+		""" Gets the find time.
+		"""
+		return self.findTime
+	
+	def addIgnoreIP(self, ip):
+		""" Adds an IP to the ignore list.
+		"""
+		self.logSys.debug("Add "+ip+" to ignore list")
+		self.ignoreIpList.append(ip)
+		
+	def inIgnoreIPList(self, ip):
+		""" Checks if IP is in the ignore list.
+		"""
+		return ip in self.ignoreIpList
+	
+	def openLogFile(self):
+		""" Opens the log file specified on init.
+		"""
+		try:
+			fileHandler = open(self.logPath)
+		except OSError:
+			self.logSys.error("Unable to open "+self.logPath)
+			sys.exit(-1)
+		return fileHandler
+		
+	def isModified(self):
+		""" Checks if the log file has been modified using os.stat().
+		"""
+		try:
+			self.logStats = os.stat(self.logPath)
+		except OSError:
+			self.logSys.error("Unable to get stat on "+self.logPath)
+			sys.exit(-1)
+		
+		if self.lastModTime == self.logStats.st_mtime:
+			return False
+		else:
+			self.logSys.debug(self.logPath+" has been modified")
+			self.lastModTime = self.logStats.st_mtime
+			return True
+	
+	def setFilePos(self, file):
+		""" Sets the file position. We must take care of log file rotation
+			and reset the position to 0 in that case. Use the log message
+			timestamp in order to detect this.		
+		"""
+		line = file.readline()
+		if self.lastDate < self.getTime(line):
+			self.logSys.debug("Date " + `self.lastDate` + " is " +
+							"smaller than " + `self.getTime(line)`)
+			self.logSys.debug("Log rotation detected for " + self.logPath)
+			self.lastPos = 0
+		
+		self.logSys.debug("Setting file position to " + `self.lastPos` + " for "
+						+ self.logPath)
+		file.seek(self.lastPos)
+	
+	def getFailures(self):
+		""" Gets all the failure in the log file which are
+			newer than time.time()-self.findTime.
+			
+			Returns a dict with the IP, the number of failure
+			and the latest failure time.
+		"""
+		ipList = dict()
+		self.logSys.debug(self.logPath)
+		logFile = self.openLogFile()
+		self.setFilePos(logFile)
+		lastLine = ''
+		for line in logFile.readlines():
+			lastLine = line
+			failList = self.findFailure(line)
+			for element in failList:
+				ip = element[0]
+				unixTime = element[1]
+				if unixTime < time.time()-self.findTime:
+					break
+				if self.inIgnoreIPList(ip):
+					self.logSys.debug("Ignore "+ip)
+					continue
+				self.logSys.debug("Found "+ip)
+				if ipList.has_key(ip):
+					ipList[ip] = (ipList[ip][0]+1, unixTime)
+				else:
+					ipList[ip] = (1, unixTime)
+		self.lastPos = logFile.tell()
+		self.lastDate = self.getTime(lastLine)
+		logFile.close()
+		return ipList
+
+	def findFailure(self, line):
+		""" Finds the failure in line. Uses the failregex pattern
+			to find it and timeregex in order to find the logging
+			time.
+			
+			Returns a dict with IP and timestamp.
+		"""
+		failList = list()
+		match = re.search(self.failregex, line)
+		if match:
+			timeMatch = re.search(self.timeregex, match.string)
+			if timeMatch:
+				date = self.getUnixTime(timeMatch.group())
+				ipMatch = textToIp(match.string)
+				if ipMatch:
+					for ip in ipMatch:
+						failList.append([ip, date])
+		return failList
+	
+	def getTime(self, line):
+		""" Gets the time of a log message.
+		"""
+		date = 0
+		timeMatch = re.search(self.timeregex, line)
+		if timeMatch:
+			date = self.getUnixTime(timeMatch.group())
+		return date
+		
+	def getUnixTime(self, value):
+		""" Returns the Unix timestamp of the given value.
+			Pattern should describe the date construction of
+			value.
+		"""
+		date = list(time.strptime(value, self.timepattern))
+		if date[0] < 2000:
+			date[0] = time.gmtime()[0]
+		unixTime = time.mktime(date)
+		return unixTime
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 00000000..fba97f88
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,5 @@
+[install]
+install-purelib=/usr/lib/fail2ban
+
+[sdist]
+formats=bztar
diff --git a/setup.py b/setup.py
new file mode 100755
index 00000000..4ae41908
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.4 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.4 $"
+__date__ = "$Date: 2005/03/31 15:52:02 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+from distutils.core import setup
+from version import version
+
+setup(
+        name = "fail2ban",
+        version = version,
+        description = "Ban IPs that make too many password failure",
+        author = "Cyril Jaquier",
+        author_email = "lostcontrol@users.sourceforge.net",
+        url = "http://www.sourceforge.net/projects/fail2ban",
+        scripts = ['fail2ban.py'],
+        py_modules = ['version'],
+        packages = ['firewall', 'logreader', 'confreader', 'utils']
+)
diff --git a/utils/__init__.py b/utils/__init__.py
new file mode 100644
index 00000000..7545b531
--- /dev/null
+++ b/utils/__init__.py
@@ -0,0 +1,25 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.1 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.1 $"
+__date__ = "$Date: 2005/03/06 17:51:24 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
\ No newline at end of file
diff --git a/utils/dns.py b/utils/dns.py
new file mode 100644
index 00000000..1be77211
--- /dev/null
+++ b/utils/dns.py
@@ -0,0 +1,73 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.7 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.7 $"
+__date__ = "$Date: 2005/05/28 19:46:18 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+import os, re, socket
+
+def dnsToIp(dns):
+	""" Convert a DNS into an IP address using the Python socket module.
+		Thanks to Kevin Drapel.
+	"""
+	try:
+		return socket.gethostbyname_ex(dns)[2]
+	except socket.gaierror:
+		return list()
+
+def textToDns(text):
+	""" Search for possible DNS in an arbitrary text.
+		Thanks to Tom Pike.
+	"""
+	match = re.findall("(?:(?:\w|-)+\.){2,}\w+", text)
+	if match:
+		return match
+	else:
+		return []
+
+def searchIP(text):
+	""" Search if an IP address if directly available and return
+		it.
+	"""
+	match = re.findall("(?:\d{1,3}\.){3}\d{1,3}", text)
+	if match:
+		return match
+	else:
+		return []
+
+def textToIp(text):
+	""" Return the IP of DNS found in a given text.
+	"""
+	ipList = list()
+	# Search for plain IP
+	plainIP = searchIP(text)
+	for element in plainIP:
+		ipList.append(element)
+	if not ipList:
+		# Try to get IP from possible DNS
+		dnsList = textToDns(text)
+		for element in dnsList:
+			dns = dnsToIp(element)
+			for e in dns:
+				ipList.append(e)
+	return ipList
diff --git a/version.py b/version.py
new file mode 100644
index 00000000..cf50035d
--- /dev/null
+++ b/version.py
@@ -0,0 +1,27 @@
+# This file is part of Fail2Ban.
+#
+# Fail2Ban is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# Fail2Ban is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Fail2Ban; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Author: Cyril Jaquier
+# 
+# $Revision: 1.12 $
+
+__author__ = "Cyril Jaquier"
+__version__ = "$Revision: 1.12 $"
+__date__ = "$Date: 2005/06/30 09:30:59 $"
+__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
+__license__ = "GPL"
+
+version = "0.4.1"