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Upgraded to fresh upstream 0.7.4

debian-releases/etch sdist/0.7.4
Yaroslav Halchenko 2007-10-16 17:01:20 -04:00
parent 0ca7bffd7b 528c9a1855
commit a82e3dc1e7
100 changed files with 6618 additions and 3026 deletions
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73
CHANGELOG
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@ -4,9 +4,78 @@
|_| \__,_|_|_/___|_.__/\__,_|_||_|
=============================================================
Fail2Ban (version 0.6.1) 2006/03/16
Fail2Ban (version 0.7.4) 2006/11/01
=============================================================
ver. 0.7.4 (2006/11/01) - beta
----------
- Improved configuration files. Thanks to Yaroslav Halchenko
- Added man page for "fail2ban-regex"
- Moved ban/unban messages from "info" level to "warn"
- Added "-s" option to specify the socket path and "socket"
option in "fail2ban.conf"
- Added "backend" option in "jail.conf"
- Added more filters/actions and jail samples. Thanks to Nick
Munger, Christoph Haas
- Improved testing framework
- Fixed a bug in the return code handling of the executed
commands. Thanks to Yaroslav Halchenko
- Signal handling. There is a bug with join() and signal in
Python
- Better debugging output for "fail2ban-regex"
- Added support for more date format
- cPickle does not work with Python 2.5. Use pickle instead
(performance is not a problem in our case)
ver. 0.7.3 (2006/09/28) - beta
----------
- Added man pages. Thanks to Yaroslav Halchenko
- Added wildcard support for "logpath"
- Added Gamin (file and directory monitoring system) support
- (Re)added "ignoreip" option
- Added more concurrency protection
- First attempt at solving bug #1457620 (locale issue)
- Performance improvements
- (Re)added permanent banning with banTime < 0
- Added DNS support to "ignoreip". Feature Request #1285859
ver. 0.7.2 (2006/09/10) - beta
----------
- Refactoring and code cleanup
- Improved client output
- Added more get/set commands
- Added more configuration templates
- Removed "logpath" and "maxretry" from filter templates.
They must be defined in jail.conf now
- Added interactive mode. Use "-i"
- Added a date detector. "timeregex" and "timepattern" are no
more needed
- Added "fail2ban-regex". This is a tool to help finding
"failregex"
- Improved server communication. Start a new thread for each
incoming request. Fail2ban is not really thread-safe yet
ver. 0.7.1 (2006/08/23) - alpha
----------
- Fixed daemon mode bug
- Added Gentoo init.d script
- Fixed path bug when trying to start "fail2ban-server"
- Fixed reload command
ver. 0.7.0 (2006/08/23) - alpha
----------
- Almost a complete rewrite :) Fail2ban design is really
better (IMHO). There is a lot of new features
- Client/Server architecture
- Multithreading. Each jail has its own threads: one for the
log reading and another for the actions
- Execute several actions
- Split configuration files. They are more readable and easy
to use
- failregex uses group (<host>) now. This feature was already
present in the Debian package
- lots of things...
ver. 0.6.1 (2006/03/16) - stable
----------
- Added permanent banning. Set banTime to a negative value to
@ -22,7 +91,7 @@ ver. 0.6.1 (2006/03/16) - stable
- Added parsing of timestamp in TAI64N format (#1275325).
Thanks to Mark Edgington
- Added patch #1382936 (Default formatted syslog logging).
Thanks to Patrick Börjesson
Thanks to Patrick B<EFBFBD>rjesson
- Removed 192.168.0.0/16 from ignoreip. Attacks could also
come from the local network.
- Robust startup: if iptables module does not get fully

2
PKG-INFO
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@ -1,6 +1,6 @@
Metadata-Version: 1.0
Name: fail2ban
Version: 0.6.1
Version: 0.7.4
Summary: Ban IPs that make too many password failure
Home-page: http://fail2ban.sourceforge.net
Author: Cyril Jaquier

131
README
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@ -4,7 +4,7 @@
|_| \__,_|_|_/___|_.__/\__,_|_||_|
=============================================================
Fail2Ban (version 0.6.1) 2006/03/16
Fail2Ban (version 0.7.4) 2006/11/01
=============================================================
Fail2Ban scans log files like /var/log/pwdfail and bans IP
@ -13,57 +13,26 @@ rules to reject the IP address. These rules can be defined by
the user. Fail2Ban can read multiple log files such as sshd
or Apache web server ones.
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. This rule is set by the user
in the configuration file. Thus, Fail2Ban can be adapted for
lots of firewall. 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, ...) and with different
firewalls.
Documentation, FAQ, HOWTOs are available on the project
website: http://fail2ban.sourceforge.net
Installation:
-------------
Require: python-2.4 (http://www.python.org)
Required:
>=python-2.4 (http://www.python.org)
Optional:
>=gamin-0.0.21 (http://www.gnome.org/~veillard/gamin)
To install, just do:
> tar xvfj fail2ban-0.6.1.tar.bz2
> cd fail2ban-0.6.1
> tar xvfj fail2ban-0.7.4.tar.bz2
> cd fail2ban-0.7.4
> python setup.py install
This will install Fail2Ban into /usr/lib/fail2ban. The
fail2ban executable is placed into /usr/bin.
executable scripts are placed into /usr/bin.
Gentoo: ebuilds are available on the website.
Debian: Fail2Ban is in Debian unstable.
@ -71,50 +40,46 @@ RedHat: packages are available on the website.
Fail2Ban should now be correctly installed. Just type:
> fail2ban -h
> fail2ban-client -h
to see if everything is alright. You can configure fail2ban
with a config file. Different kind of configuration files are
available:
iptables: copy config/fail2ban.conf.iptables to
/etc/fail2ban.conf
hosts.deny: copy config/fail2ban.conf.hostsdeny to
/etc/fail2ban.conf
shorewall: copy config/fail2ban.conf.shorewall to
/etc/fail2ban.conf
Do not forget to edit fail2ban.conf to meet your needs.
You can use the initd script available in config/. Copy
<dist>-initd to /etc/init.d/fail2ban. Gentoo users must copy
gentoo-confd to /etc/conf.d/fail2ban. You can start fail2ban:
> /etc/init.d/fail2ban start
Gentoo users can add it to the default runlevel:
> rc-update add fail2ban default
to see if everything is alright.
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:
You can configure fail2ban using the files in /etc/fail2ban
or using command line. Here are the available command line
options (not complete yet):
-b start in background
-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 instance
-r <VALUE> allow a max of VALUE password failure [maxfailures]
-t <TIME> ban IP for TIME seconds [bantime]
-f <TIME> lifetime in seconds of failed entry [findtime]
-v verbose. Use twice for greater effect
-V print software version
Options:
-c <DIR> configuration directory
-s <FILE> socket path
-d dump configuration. For debugging
-i interactive mode
-v increase verbosity
-q decrease verbosity
-x force execution of the server
-h, --help display this help message
-V, --version print the version
Command:
start start the server and the jails
reload reload the configuration
stop stop all jails and terminate the
server
status get the current status
set loglevel <LEVEL> set loglevel to <LEVEL>
get loglevel get loglevel
set logtarget <TARGET> set log target to <TARGET>
get logtarget get log target
add <JAIL> [BACKEND] create <JAIL> using [BACKEND]
set <JAIL> <CMD> set the <CMD> value for <JAIL>
get <JAIL> <CMD> get the <CMD> value for <JAIL>
start <JAIL> start <JAIL>
stop <JAIL> stop <JAIL>. The jail is removed
status <JAIL> get the current status of <JAIL>
Contact:
--------
@ -126,14 +91,14 @@ Website: http://fail2ban.sourceforge.net
Cyril Jaquier: <lostcontrol@users.sourceforge.net>
Thanks:
-------
Kévin Drapel, Marvin Rouge, Sireyessire, Robert Edeker,
Kévin Drapel, Marvin Rouge, Sireyessire, Robert Edeker,
Tom Pike, Iain Lea, Andrey G. Grozin, Yaroslav Halchenko,
Jonathan Kamens, Stephen Gildea, Markus Hoffmann, Mark
Edgington, Patrick Börjesson, kojiro, zugeschmiert
Edgington, Patrick Börjesson, kojiro, zugeschmiert, Tyler,
Nick Munger, Christoph Haas
License:
--------

104
TODO
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@ -4,92 +4,36 @@
|_| \__,_|_|_/___|_.__/\__,_|_||_|
=============================================================
ToDo $Revision: 1.11 $
ToDo $Revision: 446 $
=============================================================
See Feature Request Tracking System at SourceForge.net
Legend:
- not yet done
? maybe
# partially done
* done
- Add gettext support (I8N)
- Fix the cPickle issue with Python 2.5
- Multiline log reading
- Improve communication. (asyncore, asynchat??)
- Improve execution of action. Why does subprocess.call
deadlock with multi-jails?
# see Feature Request Tracking System at SourceForge.net
- improve installation process (better prefix support)
- improve documentation and website for user
# improve documentation and website for user
- use Doxygen
# better return values in function
- use PyLint to check the code
? restart automatically the daemon if an exception occurs.
- better configuration files
- do not close socket after a send
- add a check to see if the time of the log messages is
correctly detected (valid regexp)
- use Gentoo Portage style for scripts.
- banning engines script in /etc/fail2ban/scripts.d
Example: /etc/fail2ban/scripts.d/iptables
Will be mostly bash scripting which is more "user
friendly".
- split configuration files in /etc/fail2ban/services.d
for log files
Example: /etc/fail2ban/services.d/apache
Mainly regular expressions.
- template for common regex in /etc/fail2ban/templates.d
Example: /etc/fail2ban/templates.d/date
Mainly regular expressions.
- remove debug mode (root check)
- better return values in function
- use more email.Utils in mail.py
- add gettext support. Is this really needed for a server
utility?
- send an email when fail2ban is running
- add multithreading. Python threading is not really
efficient. However, fail2ban could benefit of it. We could
use threads like this:
- one thread which check for host to unban.
- one thread per file to watch. This will allow things like
different polling time for each file.
<srv> is read-only (we only read log files) thus no locks
are required. However, <meth> is read-write and must take
care of concurrency in case of multithreading.
- add FAM/Gamin support. Should be quite efficient with
threading. Take care that handle_one_event() release the
Python lock.
- add a test framework. We could use unittest which is in
Python since 2.1. It should be possible to run all tests
automatically.
- add client/server using socket. Something similar to
gdesklets. DBUS seems to be designed for desktop use.
- fail2ban start -> start the daemon.
- fail2ban stop -> stop the daemon.
- fail2ban add <srv> <meth> -> add <srv> monitoring with
<meth> ban method (iptables, hosts.deny, etc).
- fail2ban del <srv> -> remove <srv> monitoring.
- fail2ban status <srv> -> query current fail2ban status.
Should return infos like a ban counter. Could be graph
with rrdtool.
- fail2ban pause <srv> -> suspend monitoring.
- fail2ban resume <srv> -> resume monitoring.
- fail2ban list -> list available services.
- fail2ban flush <srv> -> flush the <srv> ban list.
- remove PID file.
- remove most of the command lines options if possible.
- add the possibility to specify wildcard in log files.
Example: logfile = /var/log/apache2/access-*.log
Should we start one thread per file or just one thread per
serivce?
- autodetect date format in log file. Match the most popular
format and sort them using the hit ratio. Should avoid
user problem with regex and not have a big impact on perfs.
- restart automatically the daemon if an exception occurs.
# refactoring in server.py, actions.py, filter.py

8
utils/__init__.py → client/__init__.py
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@ -16,10 +16,10 @@
# Author: Cyril Jaquier
#
# $Revision: 1.1 $
# $Revision: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.1 $"
__date__ = "$Date: 2005/03/06 17:51:24 $"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
__license__ = "GPL"

90
client/actionreader.py Normal file
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@ -0,0 +1,90 @@
# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
from configreader import ConfigReader
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client.config")
class ActionReader(ConfigReader):
def __init__(self, action, name):
ConfigReader.__init__(self)
self.__file = action[0]
self.__cInfo = action[1]
self.__name = name
def setFile(self, fileName):
self.__file = fileName
def getFile(self):
return self.__file
def setName(self, name):
self.__name = name
def getName(self):
return self.__name
def read(self):
return ConfigReader.read(self, "action.d/" + self.__file)
def getOptions(self, pOpts):
opts = [["string", "actionstart", ""],
["string", "actionstop", ""],
["string", "actioncheck", ""],
["string", "actionban", ""],
["string", "actionunban", ""]]
self.__opts = ConfigReader.getOptions(self, "Definition", opts, pOpts)
if self.has_section("Init"):
for opt in self.options("Init"):
if not self.__cInfo.has_key(opt):
self.__cInfo[opt] = self.get("Init", opt)
def convert(self):
head = ["set", self.__name]
stream = list()
stream.append(head + ["addaction", self.__file])
for opt in self.__opts:
if opt == "actionstart":
stream.append(head + ["actionstart", self.__file, self.__opts[opt]])
elif opt == "actionstop":
stream.append(head + ["actionstop", self.__file, self.__opts[opt]])
elif opt == "actioncheck":
stream.append(head + ["actioncheck", self.__file, self.__opts[opt]])
elif opt == "actionban":
stream.append(head + ["actionban", self.__file, self.__opts[opt]])
elif opt == "actionunban":
stream.append(head + ["actionunban", self.__file, self.__opts[opt]])
# cInfo
if self.__cInfo:
for p in self.__cInfo:
stream.append(head + ["setcinfo", self.__file, p, self.__cInfo[p]])
return stream

129
client/beautifier.py Normal file
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@ -0,0 +1,129 @@
# 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: 288 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 288 $"
__date__ = "$Date: 2006-08-22 23:59:51 +0200 (Tue, 22 Aug 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from server.jails import UnknownJailException
from server.jails import DuplicateJailException
import logging
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client.config")
##
# Beautify the output of the client.
#
# Fail2ban server only return unformatted return codes which need to be
# converted into user readable messages.
class Beautifier:
def __init__(self, cmd = None):
self.__inputCmd = cmd
def setInputCmd(self, cmd):
self.__inputCmd = cmd
def getInputCmd(self):
return self.__inputCmd
def beautify(self, response):
logSys.debug("Beautify " + `response` + " with " + `self.__inputCmd`)
inC = self.__inputCmd
msg = response
try:
if inC[0] == "ping":
msg = "Server replied: " + response
elif inC[0] == "start":
msg = "Jail started"
elif inC[0] == "stop":
if len(inC) == 1:
if response == None:
msg = "Shutdown successful"
else:
if response == None:
msg = "Jail stopped"
elif inC[0] == "add":
msg = "Added jail " + response
elif inC[0:1] == ['status']:
if len(inC) > 1:
msg = "Status for the jail: " + inC[1] + "\n"
msg = msg + "|- " + response[0][0] + "\n"
msg = msg + "| |- " + response[0][1][0][0] + ":\t\t" + `response[0][1][0][1]` + "\n"
msg = msg + "| `- " + response[0][1][1][0] + ":\t\t" + `response[0][1][1][1]` + "\n"
msg = msg + "`- " + response[1][0] + "\n"
msg = msg + " |- " + response[1][1][0][0] + ":\t\t" + `response[1][1][0][1]` + "\n"
msg = msg + " `- " + response[1][1][1][0] + ":\t\t" + `response[1][1][1][1]`
else:
msg = "Status\n"
msg = msg + "|- " + response[0][0] + ":\t" + `response[0][1]` + "\n"
msg = msg + "`- " + response[1][0] + ":\t\t" + response[1][1]
elif inC[1] == "logtarget":
msg = "Current logging target is:\n"
msg = msg + "`- " + response
elif inC[1:2] == ['loglevel']:
msg = "Current logging level is "
if response == 1:
msg = msg + "ERROR"
elif response == 2:
msg = msg + "WARN"
elif response == 3:
msg = msg + "INFO"
elif response == 4:
msg = msg + "DEBUG"
else:
msg = msg + `response`
elif inC[2] in ("logpath", "addlogpath", "dellogpath"):
if len(response) == 0:
msg = "No file is currently monitored"
else:
msg = "Current monitored log file(s):\n"
for path in response[:-1]:
msg = msg + "|- " + path + "\n"
msg = msg + "`- " + response[len(response)-1]
elif inC[2] in ("ignoreip", "addignoreip", "delignoreip"):
if len(response) == 0:
msg = "No IP address/network is ignored"
else:
msg = "These IP addresses/networks are ignored:\n"
for ip in response[:-1]:
msg = msg + "|- " + ip + "\n"
msg = msg + "`- " + response[len(response)-1]
except Exception:
logSys.warn("Beautifier error. Please report the error")
logSys.error("Beautify " + `response` + " with " + `self.__inputCmd` +
" failed")
msg = msg + `response`
return msg
def beautifyError(self, response):
logSys.debug("Beautify (error) " + `response` + " with " + `self.__inputCmd`)
msg = response
if isinstance(response, UnknownJailException):
msg = "Sorry but the jail '" + response[0] + "' does not exist"
elif isinstance(response, IndexError):
msg = "Sorry but the command is invalid"
elif isinstance(response, DuplicateJailException):
msg = "The jail '" + response[0] + "' already exists"
return msg

97
client/configreader.py Normal file
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@ -0,0 +1,97 @@
# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging, os
from ConfigParser import SafeConfigParser
from ConfigParser import NoOptionError, NoSectionError
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client.config")
class ConfigReader(SafeConfigParser):
BASE_DIRECTORY = "/etc/fail2ban/"
def __init__(self):
SafeConfigParser.__init__(self)
self.__opts = None
@staticmethod
def setBaseDir(folderName):
path = folderName.rstrip('/')
ConfigReader.BASE_DIRECTORY = path + '/'
@staticmethod
def getBaseDir():
return ConfigReader.BASE_DIRECTORY
def read(self, filename):
basename = ConfigReader.BASE_DIRECTORY + filename
logSys.debug("Reading " + basename)
bConf = basename + ".conf"
bLocal = basename + ".local"
if os.path.exists(bConf) or os.path.exists(bLocal):
SafeConfigParser.read(self, [bConf, bLocal])
return True
else:
logSys.error(bConf + " and " + bLocal + " do not exist")
return False
##
# Read the options.
#
# Read the given option in the configuration file. Default values
# are used...
# 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
def getOptions(self, sec, options, pOptions = None):
values = dict()
for option in options:
try:
if option[0] == "bool":
v = self.getboolean(sec, option[1])
elif option[0] == "int":
v = self.getint(sec, option[1])
else:
v = self.get(sec, option[1])
if not pOptions == None and option[1] in pOptions:
continue
values[option[1]] = v
except NoSectionError, e:
# No "Definition" section or wrong basedir
logSys.error(e)
values[option[1]] = option[2]
except NoOptionError:
if not option[2] == None:
logSys.warn("No '" + option[1] + "' defined in '" + sec + "'")
values[option[1]] = option[2]
except ValueError:
logSys.warn("Wrong value for '" + option[1] + "' in '" + sec +
"'. Using default one: '" + `option[2]` + "'")
values[option[1]] = option[2]
return values

76
client/configurator.py Normal file
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@ -0,0 +1,76 @@
# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
from configreader import ConfigReader
from fail2banreader import Fail2banReader
from jailsreader import JailsReader
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client.config")
class Configurator:
def __init__(self):
self.__settings = dict()
self.__streams = dict()
self.__fail2ban = Fail2banReader()
self.__jails = JailsReader()
@staticmethod
def setBaseDir(folderName):
ConfigReader.setBaseDir(folderName)
@staticmethod
def getBaseDir():
return ConfigReader.getBaseDir()
def readEarly(self):
self.__fail2ban.read()
def readAll(self):
self.readEarly()
self.__jails.read()
def getEarlyOptions(self):
return self.__fail2ban.getEarlyOptions()
def getAllOptions(self):
self.__fail2ban.getOptions()
self.__jails.getOptions()
def convertToProtocol(self):
self.__streams["general"] = self.__fail2ban.convert()
self.__streams["jails"] = self.__jails.convert()
def getConfigStream(self):
cmds = list()
for opt in self.__streams["general"]:
cmds.append(opt)
for opt in self.__streams["jails"]:
cmds.append(opt)
return cmds

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# 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: 443 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 443 $"
__date__ = "$Date: 2006-11-01 00:36:59 +0100 (Wed, 01 Nov 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
#from cPickle import dumps, loads, HIGHEST_PROTOCOL
from pickle import dumps, loads, HIGHEST_PROTOCOL
import socket
class CSocket:
END_STRING = "<F2B_END_COMMAND>"
def __init__(self, sock = "/tmp/fail2ban.sock"):
# Create an INET, STREAMing socket
#self.csock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.__csock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
#self.csock.connect(("localhost", 2222))
self.__csock.connect(sock)
def send(self, msg):
# Convert every list member to string
obj = dumps(map(str, msg), HIGHEST_PROTOCOL)
self.__csock.send(obj + CSocket.END_STRING)
ret = self.receive(self.__csock)
self.__csock.close()
return ret
@staticmethod
def receive(sock):
msg = ''
while msg.rfind(CSocket.END_STRING) == -1:
chunk = sock.recv(6)
if chunk == '':
raise RuntimeError, "socket connection broken"
msg = msg + chunk
return loads(msg)

58
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# 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: 407 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 407 $"
__date__ = "$Date: 2006-10-09 20:05:13 +0200 (Mon, 09 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
from configreader import ConfigReader
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client.config")
class Fail2banReader(ConfigReader):
def __init__(self):
ConfigReader.__init__(self)
def read(self):
ConfigReader.read(self, "fail2ban")
def getEarlyOptions(self):
opts = [["string", "socket", "/tmp/fail2ban.sock"]]
return ConfigReader.getOptions(self, "Definition", opts)
def getOptions(self):
opts = [["int", "loglevel", 1],
["string", "logtarget", "STDERR"]]
self.__opts = ConfigReader.getOptions(self, "Definition", opts)
def convert(self):
stream = list()
for opt in self.__opts:
if opt == "loglevel":
stream.append(["set", "loglevel", self.__opts[opt]])
elif opt == "logtarget":
stream.append(["set", "logtarget", self.__opts[opt]])
return stream

71
client/filterreader.py Normal file
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# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
from configreader import ConfigReader
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client.config")
class FilterReader(ConfigReader):
def __init__(self, fileName, name):
ConfigReader.__init__(self)
self.__file = fileName
self.__name = name
def setFile(self, fileName):
self.__file = fileName
def getFile(self):
return self.__file
def setName(self, name):
self.__name = name
def getName(self):
return self.__name
def read(self):
return ConfigReader.read(self, "filter.d/" + self.__file)
def getOptions(self, pOpts):
opts = [["string", "timeregex", None],
["string", "timepattern", None],
["string", "failregex", ""]]
self.__opts = ConfigReader.getOptions(self, "Definition", opts, pOpts)
def convert(self):
stream = list()
for opt in self.__opts:
if opt == "timeregex":
stream.append(["set", self.__name, "timeregex", self.__opts[opt]])
elif opt == "timepattern":
stream.append(["set", self.__name, "timepattern", self.__opts[opt]])
elif opt == "failregex":
stream.append(["set", self.__name, "failregex", self.__opts[opt]])
return stream

135
client/jailreader.py Normal file
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# 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: 438 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 438 $"
__date__ = "$Date: 2006-10-31 00:02:05 +0100 (Tue, 31 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging, re, glob
from configreader import ConfigReader
from filterreader import FilterReader
from actionreader import ActionReader
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client.config")
class JailReader(ConfigReader):
actionCRE = re.compile("^((?:\w|-|_|\.)+)(?:\[(.*)\])?$")
def __init__(self, name):
ConfigReader.__init__(self)
self.__name = name
self.__filter = None
self.__actions = list()
def setName(self, value):
self.__name = value
def getName(self):
return self.__name
def read(self):
ConfigReader.read(self, "jail")
def isEnabled(self):
return self.__opts["enabled"]
def getOptions(self):
opts = [["bool", "enabled", "false"],
["string", "logpath", "/var/log/messages"],
["string", "backend", "auto"],
["int", "maxretry", 3],
["int", "maxtime", 600],
["int", "bantime", 600],
["string", "ignoreip", None],
["string", "filter", ""],
["string", "action", ""]]
self.__opts = ConfigReader.getOptions(self, self.__name, opts)
if self.isEnabled():
# Read filter
self.__filter = FilterReader(self.__opts["filter"], self.__name)
ret = self.__filter.read()
if ret:
self.__filter.getOptions(self.__opts)
else:
logSys.error("Unable to read the filter")
return False
# Read action
for act in self.__opts["action"].split('\n'):
try:
splitAct = JailReader.splitAction(act)
action = ActionReader(splitAct, self.__name)
ret = action.read()
if ret:
action.getOptions(self.__opts)
self.__actions.append(action)
else:
raise AttributeError("Unable to read action")
except AttributeError, e:
logSys.error("Error in action definition " + act)
logSys.debug(e)
return False
return True
def convert(self):
stream = []
for opt in self.__opts:
if opt == "logpath":
for path in self.__opts[opt].split("\n"):
pathList = glob.glob(path)
if len(pathList) == 0:
logSys.error("No file found for " + path)
for p in pathList:
stream.append(["set", self.__name, "addlogpath", p])
elif opt == "backend":
backend = self.__opts[opt]
elif opt == "maxretry":
stream.append(["set", self.__name, "maxretry", self.__opts[opt]])
elif opt == "ignoreip":
for ip in self.__opts[opt].split():
stream.append(["set", self.__name, "addignoreip", ip])
elif opt == "maxtime":
stream.append(["set", self.__name, "maxtime", self.__opts[opt]])
elif opt == "bantime":
stream.append(["set", self.__name, "bantime", self.__opts[opt]])
stream.extend(self.__filter.convert())
for action in self.__actions:
stream.extend(action.convert())
stream.insert(0, ["add", self.__name, backend])
return stream
@staticmethod
def splitAction(action):
m = JailReader.actionCRE.match(action)
d = dict()
if not m.group(2) == None:
for param in m.group(2).split(','):
p = param.split('=')
try:
d[p[0].strip()] = p[1].strip()
except IndexError:
logSys.error("Invalid argument %s in '%s'" % (p, m.group(2)))
return [m.group(1), d]

71
client/jailsreader.py Normal file
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# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
from configreader import ConfigReader
from jailreader import JailReader
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client.config")
class JailsReader(ConfigReader):
def __init__(self):
ConfigReader.__init__(self)
self.__jails = list()
def read(self):
ConfigReader.read(self, "jail")
def getOptions(self):
opts = []
self.__opts = ConfigReader.getOptions(self, "Definition", opts)
for sec in self.sections():
jail = JailReader(sec)
jail.read()
ret = jail.getOptions()
if ret:
if jail.isEnabled():
# We only add enabled jails
self.__jails.append(jail)
else:
logSys.error("Errors in jail '" + sec + "'. Skipping...")
def convert(self):
stream = list()
for opt in self.__opts:
if opt == "":
stream.append([])
# Convert jails
for jail in self.__jails:
stream.extend(jail.convert())
# Start jails
for jail in self.__jails:
stream.append(["start", jail.getName()])
return stream

65
config/action.d/hostsdeny.conf Normal file
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# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 394 $
#
[Definition]
# Option: fwstart
# Notes.: command executed once at the start of Fail2Ban.
# Values: CMD
#
actionstart = touch <tmpfile>
# Option: fwend
# Notes.: command executed once at the end of Fail2Ban
# Values: CMD
#
actionstop = rm -f <tmpfile>
# Option: fwcheck
# Notes.: command executed once before each fwban command
# Values: CMD
#
actioncheck =
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
#
actionban = IP=<ip> &&
echo "ALL: $IP" >> <file>
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
#
actionunban = IP=<ip> &&
grep -v "ALL: $IP" <file> > <tmpfile> &&
mv <tmpfile> <file>
[Init]
# Option: file
# Notes.: hosts.deny file path.
# Values: STR Default: /etc/hosts.deny
#
file = /etc/hosts.deny
# Option: file
# Notes.: hosts.deny temporary file path.
# Values: STR Default: /etc/hostsdeny.failban
#
tmpfile = /tmp/hosts.deny.tmp

66
config/action.d/ipfw.conf Normal file
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# Fail2Ban configuration file
#
# Author: Nick Munger
# Modified by: Cyril Jaquier
#
# $Revision: 254 $
#
[Definition]
# Option: fwstart
# Notes.: command executed once at the start of Fail2Ban.
# Values: CMD
#
actionstart =
# Option: fwend
# Notes.: command executed once at the end of Fail2Ban
# Values: CMD
#
actionstop =
# Option: fwcheck
# Notes.: command executed once before each fwban command
# Values: CMD
#
actioncheck =
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
#
actionban = ipfw add deny tcp from <ip> to <localhost> <port>
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
#
actionunban = ipfw delete `ipfw list | grep -i <ip> | awk '{print $1;}'`
[Init]
# Option: port
# Notes.: specifies port to monitor
# Values: [ NUM | STRING ]
#
port = ssh
# Option: localhost
# Notes.: the local IP address of the network interface
# Values: IP
#
localhost = 127.0.0.1

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config/action.d/iptables.conf Normal file
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# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 394 $
#
[Definition]
# Option: fwstart
# Notes.: command executed once at the start of Fail2Ban.
# Values: CMD
#
actionstart = iptables -N fail2ban-<name>
iptables -A fail2ban-<name> -j RETURN
iptables -I INPUT -p <protocol> --dport <port> -j fail2ban-<name>
# Option: fwend
# Notes.: command executed once at the end of Fail2Ban
# Values: CMD
#
actionstop = iptables -D INPUT -p <protocol> --dport <port> -j fail2ban-<name>
iptables -F fail2ban-<name>
iptables -X fail2ban-<name>
# Option: fwcheck
# Notes.: command executed once before each fwban command
# Values: CMD
#
actioncheck = iptables -L INPUT | grep -q fail2ban-<name>
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
#
actionban = iptables -I fail2ban-<name> 1 -s <ip> -j DROP
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
#
actionunban = iptables -D fail2ban-<name> -s <ip> -j DROP
[Init]
# Defaut name of the chain
#
name = default
# Option: port
# Notes.: specifies port to monitor
# Values: [ NUM | STRING ] Default:
#
port = ssh
# Option: protocol
# Notes.: internally used by config reader for interpolations.
# Values: [ tcp | udp | icmp | all ] Default: tcp
#
protocol = tcp

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# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 254 $
#
[Definition]
# Option: fwstart
# Notes.: command executed once at the start of Fail2Ban.
# Values: CMD
#
actionstart = echo -en "Hi,\n
The jail <name> has been started successfuly.\n
Regards,\n
Fail2Ban"|mail -s "[Fail2Ban] <name>: started" <dest>
# Option: fwend
# Notes.: command executed once at the end of Fail2Ban
# Values: CMD
#
actionstop = echo -en "Hi,\n
The jail <name> has been stopped.\n
Regards,\n
Fail2Ban"|mail -s "[Fail2Ban] <name>: stopped" <dest>
# Option: fwcheck
# Notes.: command executed once before each fwban command
# Values: CMD
#
actioncheck =
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
#
actionban = echo -en "Hi,\n
The IP <ip> has just been banned by Fail2Ban after
<failures> attempts against <name>.\n\n
Here are more information about <ip>:\n
`whois <ip>`\n
Regards,\n
Fail2Ban"|mail -s "[Fail2Ban] <name>: banned <ip>" <dest>
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
#
actionunban =
[Init]
# Defaut name of the chain
#
name = default
# Destinataire of the mail
#
dest = root

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config/action.d/mail.conf Normal file
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# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 254 $
#
[Definition]
# Option: fwstart
# Notes.: command executed once at the start of Fail2Ban.
# Values: CMD
#
actionstart = echo -en "Hi,\n
The jail <name> has been started successfuly.\n
Regards,\n
Fail2Ban"|mail -s "[Fail2Ban] <name>: started" <dest>
# Option: fwend
# Notes.: command executed once at the end of Fail2Ban
# Values: CMD
#
actionstop = echo -en "Hi,\n
The jail <name> has been stopped.\n
Regards,\n
Fail2Ban"|mail -s "[Fail2Ban] <name>: stopped" <dest>
# Option: fwcheck
# Notes.: command executed once before each fwban command
# Values: CMD
#
actioncheck =
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
#
actionban = echo -en "Hi,\n
The IP <ip> has just been banned by Fail2Ban after
<failures> attempts against <name>.\n
Regards,\n
Fail2Ban"|mail -s "[Fail2Ban] <name>: banned <ip>" <dest>
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
#
actionunban =
[Init]
# Defaut name of the chain
#
name = default
# Destinataire of the mail
#
dest = root

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config/action.d/shorewall.conf Normal file
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# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 394 $
#
[Definition]
# Option: fwstart
# Notes.: command executed once at the start of Fail2Ban.
# Values: CMD
#
actionstart =
# Option: fwend
# Notes.: command executed once at the end of Fail2Ban
# Values: CMD
#
actionstop =
# Option: fwcheck
# Notes.: command executed once before each fwban command
# Values: CMD
#
actioncheck =
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
#
actionban = shorewall reject <ip>
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
#
actionunban = shorewall allow <ip>

73
config/debian-initd
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@ -1,73 +0,0 @@
#! /bin/sh
#
# Fail2Ban init.d file - to be launched on boot
#
# Written by Miquel van Smoorenburg <miquels@cistron.nl>.
# Modified for Debian
# by Ian Murdock <imurdock@gnu.ai.mit.edu>.
# Adjusted for Fail2Ban
# by Yaroslav Halchenko <debian@onerussian.com>.
#
# Version: $Id: debian-initd,v 1.2 2005/11/20 17:07:47 lostcontrol Exp $
#
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/bin/fail2ban
NAME=fail2ban
DESC=fail2ban
PIDFILE=/var/run/$NAME.pid
test -x $DAEMON || exit 0
# Include fail2ban defaults if available
if [ -f /etc/default/fail2ban ] ; then
. /etc/default/fail2ban
fi
DAEMON_OPTS=$FAIL2BAN_OPTS
set -e
case "$1" in
start)
echo -n "Starting $DESC: "
[ -f $PIDFILE ] && [ ! -d /proc/`cat $PIDFILE` ] && rm -f $PIDFILE
start-stop-daemon --start --quiet --pidfile $PIDFILE \
-b --exec $DAEMON -- $DAEMON_OPTS
echo "$NAME."
;;
stop)
echo -n "Stopping $DESC: "
start-stop-daemon --stop --quiet --pidfile $PIDFILE
echo "$NAME."
;;
restart|force-reload)
echo -n "Restarting $DESC: "
( $0 stop )
sleep 1
$0 start
;;
status)
echo -n "Status of $DESC: "
if [ ! -e "$PIDFILE" ]; then
echo "$NAME is not running."
exit 3
fi
if [ ! -r "$PIDFILE" ]; then
echo "$PIDFILE not readable, status of $NAME unknown."
exit 4
fi
if [ -d /proc/`cat "$PIDFILE"` ]; then
echo "$NAME is running."
exit 0
else
echo "$NAME is not running but $PIDFILE exists."
exit 1
fi
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|force-reload|status}" >&2
exit 1
;;
esac
exit 0

32
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# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 412 $
#
[Definition]
# Option: loglevel
# Notes.: Set the log level output.
# 1 = ERROR
# 2 = WARN
# 3 = INFO
# 4 = DEBUG
# Values: NUM Default: 3
#
loglevel = 3
# Option: logtarget
# Notes.: Set the log target. This could be a file, SYSLOG, STDERR.
# Values: STDERR SYSLOG file Default: /var/log/fail2ban.log
#
logtarget = /var/log/fail2ban.log
# Option: socket
# Notes.: Set the socket file. This is used to communication with the
# daemon.
# Values: FILE Default: /tmp/fail2ban.sock
#
socket = /tmp/fail2ban.sock

327
config/fail2ban.conf.hostsdeny
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@ -1,327 +0,0 @@
# Fail2Ban configuration file
#
# $Revision: 1.2 $
#
# 2005.06.21 modified for readability Iain Lea iain@bricbrac.de
[DEFAULT]
# Option: background
# Notes.: start fail2ban as a daemon. Output is redirect to logfile.
# Values: [true | false] Default: false
#
background = false
# Option: logtargets
# Notes.: log targets. Space separated list of logging targets.
# Values: STDERR SYSLOG file Default: /var/log/fail2ban.log
#
logtargets = /var/log/fail2ban.log
# Option: syslog-target
# Notes.: where to find syslog facility if logtarget SYSLOG.
# Values: SOCKET HOST HOST:PORT Default: /dev/log
#
syslog-target = /dev/log
# Option: syslog-facility
# Notes.: which syslog facility to use if logtarget SYSLOG.
# Values: NUM Default: 1
#
syslog-facility = 1
# 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: maxfailures
# Notes.: number of failures before IP gets banned.
# Values: NUM Default: 5
#
maxfailures = 5
# Option: bantime
# Notes.: number of seconds an IP will be banned. If set to a negative
# value, IP will never be unbanned (permanent banning).
# Values: NUM Default: 600
#
bantime = 600
# Option: findtime
# Notes.: lifetime in seconds of a "failed" log entry.
# Values: NUM Default: 600
#
findtime = 600
# Option: ignoreip
# Notes.: space separated list of IP's to be ignored by fail2ban.
# You can use CIDR mask in order to specify a range.
# Example: ignoreip = 192.168.0.1/24 123.45.235.65
# Values: IP Default:
#
ignoreip =
# Option: cmdstart
# Notes.: command executed once at the start of Fail2Ban
# Values: CMD Default:
#
cmdstart =
# Option: cmdend
# Notes.: command executed once at the end of Fail2Ban.
# Values: CMD Default:
#
cmdend =
# Option: polltime
# Notes.: number of seconds fail2ban sleeps between iterations.
# Values: NUM Default: 1
#
polltime = 1
# Option: reinittime
# Notes.: minimal number of seconds between the re-initialization of
# firewalls due to external changes in their rules (see fwcheck)
# Values: NUM Default: 100
#
reinittime = 10
# Option: maxreinits
# Notes.: maximal number of re-initialization of firewalls due to external
# changes. -1 stays for infinite, so only reinittime is of importance
# Values: NUM Default: -1
#
maxreinits = -1
# NOTE: Interpolations
#
# fwstart, as well as fwend, fwcheck, fwban, fwunban, use interpolations
# so %(__name__)s will be substituted by a name of each section
# (unless the option is overriden in a section).
# If you are going to use interpolations in your setup, please make
# sure that you specified options port and protocol (which also has
# an option in DEFAULT).
#
# Option: hostsdeny
# Notes.: hosts.deny file path.
# Values: STR Default: /etc/hosts.deny
#
hostsdeny = /etc/hosts.deny
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
# Default: iptables -I INPUT 1 -s <ip> -j DROP
#
fwban = IP=<ip> && echo "ALL: $IP" >> %(hostsdeny)s
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
# Default: iptables -D INPUT -s <ip> -j DROP
#
fwunban = IP=<ip> && sed -i.old s/ALL:\ $IP// %(hostsdeny)s
[MAIL]
# Option: enabled
# Notes.: enable mail notification when banning an IP address.
# Values: [true | false] Default: false
#
enabled = false
# Option: host
# Notes.: host running the mail server.
# Values: STR Default: localhost
#
host = localhost
# Option: port
# Notes.: port of the mail server.
# Values: INT Default: 25
#
port = 25
# Option: user
# Notes.: the username for smtp-server if authentification is required.
# if user is empty, no authentification is done.
# Values: STR Default:
#
user =
# Option: password
# Notes.: the smtp-user's password if authentification is required.
# Values: STR Default:
#
password =
# Option: from
# Notes.: e-mail address of the sender.
# Values: MAIL Default: fail2ban
#
from = fail2ban
# Option: to
# Notes.: e-mail addresses of the receiver. Addresses are space
# separated.
# Values: MAIL Default: root
#
to = root
# Option: localtime
# Notes.: report local time (including timezone) or GMT
# Values: [true | false] Default: false
#
localtime = true
# Option: subject
# Notes.: subject of the e-mail.
# Tags: <section> active section (eg ssh, apache, etc)
# <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# Values: TEXT Default: [Fail2Ban] <section>: Banned <ip>
#
subject = [Fail2Ban] <section>: Banned <ip>
# Option: message
# Notes.: message of the e-mail.
# Tags: <section> active section (eg ssh, apache, etc)
# <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <br> new line
# Values: TEXT Default:
#
message = Hi,<br>
The IP <ip> has just been banned by Fail2Ban after
<failures> attempts against <section>.<br>
Regards,<br>
Fail2Ban
# You can define a new section for each log file to check for
# password failure. Each section has to define the following
# options: logfile, fwban, fwunban, 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. For TAI64N format,
# use timeregex = @[0-9a-f]{24}
# 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).
# For TAI64N format, use timepattern = tai64n
# 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
[VSFTPD]
# 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/secure
#
logfile = /var/log/vsftpd.log
# Option: port
# Notes.: specifies port to monitor
# Values: [ NUM | STRING ] Default:
#
port = ftp
# Option: timeregex
# Notes.: regex to match timestamp in VSFTPD 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 = FAIL LOGIN
[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. For TAI64N format,
# use timeregex = @[0-9a-f]{24}
# 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).
# For TAI64N format, use timepattern = tai64n
# 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

361
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# Fail2Ban configuration file
#
# $Revision: 1.2.2.1 $
#
# 2005.06.21 modified for readability Iain Lea iain@bricbrac.de
[DEFAULT]
# Option: background
# Notes.: start fail2ban as a daemon. Output is redirect to logfile.
# Values: [true | false] Default: false
#
background = false
# Option: logtargets
# Notes.: log targets. Space separated list of logging targets.
# Values: STDERR SYSLOG file Default: /var/log/fail2ban.log
#
logtargets = /var/log/fail2ban.log
# Option: syslog-target
# Notes.: where to find syslog facility if logtarget SYSLOG.
# Values: SOCKET HOST HOST:PORT Default: /dev/log
#
syslog-target = /dev/log
# Option: syslog-facility
# Notes.: which syslog facility to use if logtarget SYSLOG.
# Values: NUM Default: 1
#
syslog-facility = 1
# 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: maxfailures
# Notes.: number of failures before IP gets banned.
# Values: NUM Default: 5
#
maxfailures = 5
# Option: bantime
# Notes.: number of seconds an IP will be banned. If set to a negative
# value, IP will never be unbanned (permanent banning).
# Values: NUM Default: 600
#
bantime = 600
# Option: findtime
# Notes.: lifetime in seconds of a "failed" log entry.
# Values: NUM Default: 600
#
findtime = 600
# Option: ignoreip
# Notes.: space separated list of IP's to be ignored by fail2ban.
# You can use CIDR mask in order to specify a range.
# Example: ignoreip = 192.168.0.1/24 123.45.235.65
# Values: IP Default:
#
ignoreip =
# Option: cmdstart
# Notes.: command executed once at the start of Fail2Ban
# Values: CMD Default:
#
cmdstart =
# Option: cmdend
# Notes.: command executed once at the end of Fail2Ban.
# Values: CMD Default:
#
cmdend =
# Option: polltime
# Notes.: number of seconds fail2ban sleeps between iterations.
# Values: NUM Default: 1
#
polltime = 1
# Option: reinittime
# Notes.: minimal number of seconds between the re-initialization of
# firewalls due to external changes in their rules (see fwcheck)
# Values: NUM Default: 100
#
reinittime = 10
# Option: maxreinits
# Notes.: maximal number of re-initialization of firewalls due to external
# changes. -1 stays for infinite, so only reinittime is of importance
# Values: NUM Default: -1
#
maxreinits = -1
# NOTE: Interpolations
#
# fwstart, as well as fwend, fwcheck, fwban, fwunban, use interpolations
# so %(__name__)s will be substituted by a name of each section
# (unless the option is overriden in a section).
# If you are going to use interpolations in your setup, please make
# sure that you specified options port and protocol (which also has
# an option in DEFAULT).
#
# Option: protocol
# Notes.: internally used by config reader for interpolations.
# Values: [ tcp | udp | icmp | all ] Default: tcp
#
protocol = tcp
# Option: fwstart
# Notes.: command executed once at the start of Fail2Ban.
# Values: CMD Default:
#
fwstart = iptables -N fail2ban-%(__name__)s
iptables -A fail2ban-%(__name__)s -j RETURN
iptables -I INPUT -p %(protocol)s --dport %(port)s -j fail2ban-%(__name__)s
# Option: fwend
# Notes.: command executed once at the end of Fail2Ban
# Values: CMD Default:
#
fwend = iptables -D INPUT -p %(protocol)s --dport %(port)s -j fail2ban-%(__name__)s
iptables -F fail2ban-%(__name__)s
iptables -X fail2ban-%(__name__)s
# Option: fwcheck
# Notes.: command executed once before each fwban command
# Values: CMD Default:
#
fwcheck = iptables -L INPUT | grep -q fail2ban-%(__name__)s
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
# Default: iptables -I INPUT 1 -s <ip> -j DROP
#
fwban = iptables -I fail2ban-%(__name__)s 1 -s <ip> -j DROP
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
# Default: iptables -D INPUT -s <ip> -j DROP
#
fwunban = iptables -D fail2ban-%(__name__)s -s <ip> -j DROP
[MAIL]
# Option: enabled
# Notes.: enable mail notification when banning an IP address.
# Values: [true | false] Default: false
#
enabled = false
# Option: host
# Notes.: host running the mail server.
# Values: STR Default: localhost
#
host = localhost
# Option: port
# Notes.: port of the mail server.
# Values: INT Default: 25
#
port = 25
# Option: user
# Notes.: the username for smtp-server if authentification is required.
# if user is empty, no authentification is done.
# Values: STR Default:
#
user =
# Option: password
# Notes.: the smtp-user's password if authentification is required.
# Values: STR Default:
#
password =
# Option: from
# Notes.: e-mail address of the sender.
# Values: MAIL Default: fail2ban
#
from = fail2ban
# Option: to
# Notes.: e-mail addresses of the receiver. Addresses are space
# separated.
# Values: MAIL Default: root
#
to = root
# Option: localtime
# Notes.: report local time (including timezone) or GMT
# Values: [true | false] Default: false
#
localtime = true
# Option: subject
# Notes.: subject of the e-mail.
# Tags: <section> active section (eg ssh, apache, etc)
# <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# Values: TEXT Default: [Fail2Ban] <section>: Banned <ip>
#
subject = [Fail2Ban] <section>: Banned <ip>
# Option: message
# Notes.: message of the e-mail.
# Tags: <section> active section (eg ssh, apache, etc)
# <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <br> new line
# Values: TEXT Default:
#
message = Hi,<br>
The IP <ip> has just been banned by Fail2Ban after
<failures> attempts against <section>.<br>
Regards,<br>
Fail2Ban
# You can define a new section for each log file to check for
# password failure. Each section has to define the following
# options: logfile, fwban, fwunban, 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: port
# Notes.: specifies port to monitor
# Values: [ NUM | STRING ] Default:
#
port = http
# Option: timeregex
# Notes.: regex to match timestamp in Apache logfile. For TAI64N format,
# use timeregex = @[0-9a-f]{24}
# 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).
# For TAI64N format, use timepattern = tai64n
# 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
[VSFTPD]
# 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/secure
#
logfile = /var/log/vsftpd.log
# Option: port
# Notes.: specifies port to monitor
# Values: [ NUM | STRING ] Default:
#
port = ftp
# Option: timeregex
# Notes.: regex to match timestamp in VSFTPD 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 = FAIL LOGIN
[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: port
# Notes.: specifies port to monitor
# Values: [ NUM | STRING ] Default:
#
port = ssh
# Option: timeregex
# Notes.: regex to match timestamp in SSH logfile. For TAI64N format,
# use timeregex = @[0-9a-f]{24}
# 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).
# For TAI64N format, use timepattern = tai64n
# 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

314
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# Fail2Ban configuration file
#
# $Revision: 1.2 $
#
# 2005.06.21 modified for readability Iain Lea iain@bricbrac.de
[DEFAULT]
# Option: background
# Notes.: start fail2ban as a daemon. Output is redirect to logfile.
# Values: [true | false] Default: false
#
background = false
# Option: logtargets
# Notes.: log targets. Space separated list of logging targets.
# Values: STDERR SYSLOG file Default: /var/log/fail2ban.log
#
logtargets = /var/log/fail2ban.log
# Option: syslog-target
# Notes.: where to find syslog facility if logtarget SYSLOG.
# Values: SOCKET HOST HOST:PORT Default: /dev/log
#
syslog-target = /dev/log
# Option: syslog-facility
# Notes.: which syslog facility to use if logtarget SYSLOG.
# Values: NUM Default: 1
#
syslog-facility = 1
# 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: maxfailures
# Notes.: number of failures before IP gets banned.
# Values: NUM Default: 5
#
maxfailures = 5
# Option: bantime
# Notes.: number of seconds an IP will be banned. If set to a negative
# value, IP will never be unbanned (permanent banning).
# Values: NUM Default: 600
#
bantime = 600
# Option: findtime
# Notes.: lifetime in seconds of a "failed" log entry.
# Values: NUM Default: 600
#
findtime = 600
# Option: ignoreip
# Notes.: space separated list of IP's to be ignored by fail2ban.
# You can use CIDR mask in order to specify a range.
# Example: ignoreip = 192.168.0.1/24 123.45.235.65
# Values: IP Default:
#
ignoreip =
# Option: cmdstart
# Notes.: command executed once at the start of Fail2Ban
# Values: CMD Default:
#
cmdstart =
# Option: cmdend
# Notes.: command executed once at the end of Fail2Ban.
# Values: CMD Default:
#
cmdend =
# Option: polltime
# Notes.: number of seconds fail2ban sleeps between iterations.
# Values: NUM Default: 1
#
polltime = 1
# Option: reinittime
# Notes.: minimal number of seconds between the re-initialization of
# firewalls due to external changes in their rules (see fwcheck)
# Values: NUM Default: 100
#
reinittime = 10
# Option: maxreinits
# Notes.: maximal number of re-initialization of firewalls due to external
# changes. -1 stays for infinite, so only reinittime is of importance
# Values: NUM Default: -1
#
maxreinits = -1
# NOTE: Interpolations
#
# fwstart, as well as fwend, fwcheck, fwban, fwunban, use interpolations
# so %(__name__)s will be substituted by a name of each section
# (unless the option is overriden in a section).
# If you are going to use interpolations in your setup, please make
# sure that you specified options port and protocol (which also has
# an option in DEFAULT).
#
# Option: fwban
# Notes.: command executed when banning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <bantime> unix timestamp of the ban time
# Values: CMD
# Default: iptables -I INPUT 1 -s <ip> -j DROP
#
fwban = shorewall drop <ip>
# Option: fwunban
# Notes.: command executed when unbanning an IP. Take care that the
# command is executed with Fail2Ban user rights.
# Tags: <ip> IP address
# <bantime> unix timestamp of the ban time
# <unbantime> unix timestamp of the unban time
# Values: CMD
# Default: iptables -D INPUT -s <ip> -j DROP
#
fwunban = shorewall allow <ip>
[MAIL]
# Option: enabled
# Notes.: enable mail notification when banning an IP address.
# Values: [true | false] Default: false
#
enabled = false
# Option: host
# Notes.: host running the mail server.
# Values: STR Default: localhost
#
host = localhost
# Option: port
# Notes.: port of the mail server.
# Values: INT Default: 25
#
port = 25
# Option: user
# Notes.: the username for smtp-server if authentification is required.
# if user is empty, no authentification is done.
# Values: STR Default:
#
user =
# Option: password
# Notes.: the smtp-user's password if authentification is required.
# Values: STR Default:
#
password =
# Option: from
# Notes.: e-mail address of the sender.
# Values: MAIL Default: fail2ban
#
from = fail2ban
# Option: to
# Notes.: e-mail addresses of the receiver. Addresses are space
# separated.
# Values: MAIL Default: root
#
to = root
# Option: localtime
# Notes.: report local time (including timezone) or GMT
# Values: [true | false] Default: false
#
localtime = true
# Option: subject
# Notes.: subject of the e-mail.
# Tags: <section> active section (eg ssh, apache, etc)
# <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# Values: TEXT Default: [Fail2Ban] <section>: Banned <ip>
#
subject = [Fail2Ban] <section>: Banned <ip>
# Option: message
# Notes.: message of the e-mail.
# Tags: <section> active section (eg ssh, apache, etc)
# <ip> IP address
# <failures> number of failures
# <failtime> unix timestamp of the last failure
# <br> new line
# Values: TEXT Default:
#
message = Hi,<br>
The IP <ip> has just been banned by Fail2Ban after
<failures> attempts against <section>.<br>
Regards,<br>
Fail2Ban
# You can define a new section for each log file to check for
# password failure. Each section has to define the following
# options: logfile, fwban, fwunban, 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. For TAI64N format,
# use timeregex = @[0-9a-f]{24}
# 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).
# For TAI64N format, use timepattern = tai64n
# 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
[VSFTPD]
# 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/secure
#
logfile = /var/log/vsftpd.log
# Option: timeregex
# Notes.: regex to match timestamp in VSFTPD 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 = FAIL LOGIN
[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. For TAI64N format,
# use timeregex = @[0-9a-f]{24}
# 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).
# For TAI64N format, use timepattern = tai64n
# 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

14
config/filter.d/apache-auth.conf Normal file
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@ -0,0 +1,14 @@
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 394 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failure messages in the logfile.
# Values: TEXT
#
failregex = [[]client (?P<host>\S*)[]] user .*(?:: authentication failure|not found)

14
config/filter.d/apache-noscript.conf Normal file
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@ -0,0 +1,14 @@
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 394 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failure messages in the logfile.
# Values: TEXT
#
failregex = [[]client (?P<host>\S*)[]] File does not exist: .*(\.php|\.asp)

15
config/filter.d/courierlogin.conf Normal file
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@ -0,0 +1,15 @@
# Fail2Ban configuration file
#
# Author: Christoph Haas
# Modified by: Cyril Jaquier
#
# $Revision: 267 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = LOGIN FAILED, ip=\[::ffff:(?P<host>\S*)\]$

14
config/filter.d/couriersmtp.conf Normal file
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@ -0,0 +1,14 @@
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 267 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = error,relay=(?:::f{4,6}:)?(?P<host>\S*),.*550 User unknown

14
config/filter.d/postfix.conf Normal file
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@ -0,0 +1,14 @@
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 267 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = reject: RCPT from (.*)\[(?P<host>\S*)\]: 554

14
config/filter.d/proftpd.conf Normal file
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@ -0,0 +1,14 @@
# Fail2Ban configuration file
#
# Author: Yaroslav Halchenko
#
# $Revision: 331 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = USER \S+: no such user found from \S* ?\[(?P<host>\S+)\] to \S+\s*$

14
config/filter.d/qmail.conf Normal file
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@ -0,0 +1,14 @@
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 267 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = (?:[\d,.]+[\d,.] rblsmtpd: |421 badiprbl: ip )(?P<host>\S*)

14
config/filter.d/sasl.conf Normal file
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@ -0,0 +1,14 @@
# Fail2Ban configuration file
#
# Author: Yaroslav Halchenko
#
# $Revision: 331 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = : warning: [-._\w]+\[(?P<host>[.\d]+)\]: SASL (?:LOGIN|PLAIN|(?:CRAM|DIGEST)-MD5) authentication failed$

15
config/filter.d/sshd.conf Normal file
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@ -0,0 +1,15 @@
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 394 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = (?:(?:Authentication failure|Failed [-/\w+]+) for(?: [iI](?:llegal|nvalid) user)?|[Ii](?:llegal|nvalid) user|ROOT LOGIN REFUSED) .*(?: from|FROM) (?:::f{4,6}:)?(?P<host>\S*)

14
config/filter.d/vsftpd.conf Normal file
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@ -0,0 +1,14 @@
# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 394 $
#
[Definition]
# Option: failregex
# Notes.: regex to match the password failures messages in the logfile.
# Values: TEXT
#
failregex = vsftpd: \(pam_unix\) authentication failure; .* rhost=(?P<host>\S*)

23
config/gentoo-confd
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@ -1,23 +0,0 @@
# 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: 1.2 $
# Command line options for Fail2Ban. Refer to "fail2ban -h" for
# valid options.
FAIL2BAN_OPTS="-v"

135
config/jail.conf Normal file
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# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 421 $
#
# The DEFAULT allows a global definition of the options. They can be override
# in each jail afterwards.
[DEFAULT]
# "ignoreip" can be an IP address, a CIDR mask or a DNS host
ignoreip = 127.0.0.1
bantime = 600
maxretry = 3
# "backend" specifies the backend used to get files modification. Available
# options are "gamin", "polling" and "auto".
backend = auto
# This jail corresponds to the standard configuration in Fail2ban 0.6.
# The mail-whois action send a notification e-mail with a whois request
# in the body.
[ssh-iptables]
enabled = false
filter = sshd
action = iptables[name=SSH, port=ssh, protocol=tcp]
mail-whois[name=SSH, dest=yourmail@mail.com]
logpath = /var/log/sshd.log
maxretry = 5
[proftpd-iptables]
enabled = false
filter = proftpd
action = iptables[name=ProFTPD, port=ftp, protocol=tcp]
mail-whois[name=ProFTPD, dest=yourmail@mail.com]
logpath = /var/log/proftpd/proftpd.log
maxretry = 6
# This jail forces the backend to "polling".
[sasl-iptables]
enabled = false
filter = sasl
backend = polling
action = iptables[name=sasl, port=smtp, protocol=tcp]
mail-whois[name=sasl, dest=yourmail@mail.com]
logpath = /var/log/mail.log
# This one behaves like the previous and sends a report when the jail
# is stopped.
[ssh-iptables-report]
enabled = false
filter = sshd
action = iptables[name=SSH, port=ssh, protocol=tcp]
mail-whois[name=SSH, dest=yourmail@mail.com]
mail-report[dest=yourmail@mail.com]
logpath = /var/log/sshd.log
maxretry = 5
# Here we use TCP-Wrappers instead of Netfilter/Iptables.
[ssh-tcpwrapper]
enabled = false
filter = sshd
action = hostsdeny
mail-whois[name=SSH, dest=yourmail@mail.com]
logpath = /var/log/sshd.log
# This jail demonstrates the use of wildcards in "logpath".
# Moreover, it is possible to give other files on a new line.
[apache-tcpwrapper]
enabled = false
filter = apache-auth
action = hostsdeny
logpath = /var/log/apache*/*access.log
/home/www/myhomepage/access.log
maxretry = 6
# The hosts.deny path can be defined with the "file" argument if it is
# not in /etc.
[postfix-tcpwrapper]
enabled = false
filter = postfix
action = hostsdeny[file=/not/a/standard/path/hosts.deny]
mail[name=Postfix, dest=yourmail@mail.com]
logpath = /var/log/postfix.log
bantime = 300
# Do not ban anybody. Just report information about the remote host.
# A notification is sent at most every 600 seconds (bantime).
[vsftpd-notification]
enabled = false
filter = vsftpd
action = mail-whois[name=VSFTPD, dest=yourmail@mail.com]
logpath = /var/log/vsftpd.log
maxretry = 5
bantime = 1800
# Use shorewall instead of iptables.
[apache-shorewall]
enabled = false
filter = apache-noscript
action = shorewall
mail[name=Postfix, dest=yourmail@mail.com]
logpath = /var/log/apache2/error_log
# This jail uses ipfw, the standard firewall on FreeBSD. The "ignoreip"
# option is overridden in this jail.
[ssh-ipfw]
enabled = false
filter = sshd
action = ipfw[localhost=192.168.0.1]
mail-whois[name=SSH, dest=yourmail@mail.com]
logpath = /var/log/auth.log
ignoreip = 168.192.0.1

78
config/redhat-initd
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@ -1,78 +0,0 @@
#!/bin/bash
#
# fail2ban
#
# chkconfig: 345 91 9
# description: if many unsuccessfull login attempts from some ip address \
# during a short period happen, this address is banned \
# by the firewall
#
# Author: Andrey G. Grozin
#
# $Revision: 1.2 $
# Source function library.
. /etc/init.d/functions
# Get config.
. /etc/sysconfig/network
# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 0
[ -f /etc/fail2ban.conf ] || exit 0
FAIL2BAN="/usr/bin/fail2ban"
PIDFILE="/var/run/fail2ban.pid"
RETVAL=0
start() {
echo -n $"Starting fail2ban: "
"${FAIL2BAN}" -b > /dev/null
RETVAL=$?
echo
}
stop() {
if [ -f "${PIDFILE}" ]; then
echo -n $"Stopping fail2ban: "
"${FAIL2BAN}" -k > /dev/null
echo
fi
}
restart() {
stop
start
}
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status fail2ban
RETVAL=$?
;;
reload)
restart
;;
restart)
restart
;;
condrestart)
if [ -f "${PIDFILE}" ]; then
restart
fi
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart}"
exit 1
;;
esac
exit $RETVAL

85
confreader/configreader.py
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@ -1,85 +0,0 @@
# 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: 1.6 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.6 $"
__date__ = "$Date: 2005/11/20 17:07:47 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
from ConfigParser import *
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
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.
"""
def __init__(self, confPath):
self.confPath = confPath
self.configParser = SafeConfigParser()
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 and MAIL sections.
"""
sections = self.configParser.sections()
sections.remove("MAIL")
logSys.debug("Found sections: " + `sections`)
return sections
# 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
def getLogOptions(self, sec, options):
""" Gets all the options of a given section. The options
are defined in the optionValues list.
"""
values = dict()
for option in options:
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:
logSys.warn("No '" + option[1] + "' defined in '" + sec + "'")
values[option[1]] = option[2]
except ValueError:
logSys.warn("Wrong value for '" + option[1] + "' in '" + sec +
"'. Using default one: '" + `option[2]` + "'")
values[option[1]] = option[2]
return values

75
fail2ban
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@ -1,75 +0,0 @@
#!/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: 1.7 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.7 $"
__date__ = "$Date: 2005/12/27 15:09:50 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import sys, traceback, logging, locale
# Set the locale with the user's default setting
try:
locale.setlocale(locale.LC_ALL, '')
except Exception:
print "Unable to set locale to " + `locale.getdefaultlocale()`
sys.exit(-1)
# Inserts our own modules path first in the list
# fix for bug #343821
sys.path.insert(1, "/usr/lib/fail2ban")
# Now we can import our modules.
import fail2ban
from utils.pidlock import PIDLock
# Get the instance of the logger.
logSys = logging.getLogger("fail2ban")
# Get PID lock file instance
pidLock = PIDLock()
# Handle all the unhandled exceptions
try:
# Start the application
fail2ban.main()
except SystemExit:
# We called sys.exit(). Nothing wrong so just pass
pass
except Exception, e:
# Print the exception data
(type, value, tb) = sys.exc_info()
tbStack = traceback.extract_tb(tb)
logSys.error("Fail2Ban got an unhandled exception and died.")
logSys.error("Type: " + `type.__name__` + "\n" +
"Value: " + `e.args` + "\n" +
"TB: " + `tbStack`)
# Try to clean up after ourselves
# just for extreme caution - wrapping with try
try:
fail2ban.restoreFwRules()
except Exception:
pass
# Remove the PID lock file. Should close #1239562
pidLock.remove()
logging.shutdown()

341
fail2ban-client Executable file
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@ -0,0 +1,341 @@
#!/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: 444 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 444 $"
__date__ = "$Date: 2006-11-01 23:03:48 +0100 (Wed, 01 Nov 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import sys, string, os, pickle, re, logging
import getopt, time, readline, shlex, socket
# Inserts our own modules path first in the list
# fix for bug #343821
sys.path.insert(1, "/usr/lib/fail2ban")
# Now we can import our modules
from version import version
from client.csocket import CSocket
from client.configurator import Configurator
from client.beautifier import Beautifier
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.client")
##
#
# @todo This class needs cleanup.
class Fail2banClient:
prompt = "fail2ban> "
def __init__(self):
self.__argv = None
self.__stream = None
self.__configurator = Configurator()
self.__conf = dict()
self.__conf["conf"] = "/etc/fail2ban"
self.__conf["dump"] = False
self.__conf["force"] = False
self.__conf["verbose"] = 1
self.__conf["interactive"] = False
self.__conf["socket"] = None
def dispVersion(self):
print "Fail2Ban v" + version
print
print "Copyright (c) 2004-2006 Cyril Jaquier"
print "Copyright of modifications held by their respective authors."
print "Licensed under the GNU General Public License v2 (GPL)."
print
print "Written by Cyril Jaquier <lostcontrol@users.sourceforge.net>."
print "Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>."
def dispUsage(self):
""" Prints Fail2Ban command line options and exits
"""
print "Usage: "+self.__argv[0]+" [OPTIONS]... <COMMAND>"
print
print "Fail2Ban v" + version + " reads log file that contains password failure report"
print "and bans the corresponding IP addresses using firewall rules."
print
print "Options:"
print " -c <DIR> configuration directory"
print " -s <FILE> socket path"
print " -d dump configuration. For debugging"
print " -i interactive mode"
print " -v increase verbosity"
print " -q decrease verbosity"
print " -x force execution of the server"
print " -h, --help display this help message"
print " -V, --version print the version"
print
print "Command:"
print " start start the server and the jails"
print " reload reload the configuration"
print " stop stop all jails and terminate the server"
print " status get the current status"
print
print " set loglevel <LEVEL> set loglevel to <LEVEL>"
print " get loglevel get loglevel"
print " set logtarget <TARGET> set log target to <TARGET>"
print " get logtarget get log target"
print
print " add <JAIL> [BACKEND] create <JAIL> using [BACKEND]"
print " set <JAIL> <CMD> set the <CMD> value for <JAIL>"
print " get <JAIL> <CMD> get the <CMD> value for <JAIL>"
print " start <JAIL> start <JAIL>"
print " stop <JAIL> stop <JAIL>. The jail is removed"
print " status <JAIL> get the current status of <JAIL>"
print
print "Report bugs to <lostcontrol@users.sourceforge.net>"
def dispInteractive(self):
print "Fail2Ban v" + version + " reads log file that contains password failure report"
print "and bans the corresponding IP addresses using firewall rules."
print
def __getCmdLineOptions(self, optList):
""" Gets the command line options
"""
for opt in optList:
if opt[0] == "-c":
self.__conf["conf"] = opt[1]
elif opt[0] == "-s":
self.__conf["socket"] = opt[1]
elif opt[0] == "-d":
self.__conf["dump"] = True
elif opt[0] == "-v":
self.__conf["verbose"] = self.__conf["verbose"] + 1
elif opt[0] == "-q":
self.__conf["verbose"] = self.__conf["verbose"] - 1
elif opt[0] == "-x":
self.__conf["force"] = True
elif opt[0] == "-i":
self.__conf["interactive"] = True
elif opt[0] in ["-h", "--help"]:
self.dispUsage()
sys.exit(0)
elif opt[0] in ["-V", "--version"]:
self.dispVersion()
sys.exit(0)
def __ping(self):
return self.__processCmd([["ping"]], False)
def __processCmd(self, cmd, showRet = True):
beautifier = Beautifier()
for c in cmd:
beautifier.setInputCmd(c)
try:
client = CSocket(self.__conf["socket"])
ret = client.send(c)
if ret[0] == 0:
logSys.debug("OK : " + `ret[1]`)
if showRet:
print beautifier.beautify(ret[1])
else:
logSys.debug("NOK: " + `ret[1].args`)
print beautifier.beautifyError(ret[1])
return False
except socket.error:
if showRet:
logSys.error("Unable to contact server. Is it running?")
return False
except Exception, e:
if showRet:
logSys.error(e)
return False
return True
##
# Process a command line.
#
# Process one command line and exit.
# @param cmd the command line
def __processCommand(self, cmd):
if len(cmd) == 1 and cmd[0] == "start":
if self.__ping():
logSys.error("Server already running")
return False
else:
self.__startServerAsync(self.__conf["force"])
# Read the config while the server is starting
self.__readConfig()
try:
# Wait for the server to start
self.__waitOnServer()
# Configure the server
self.__processCmd(self.__stream, False)
return True
except ServerExecutionException:
logSys.error("Could not start server. Try -x option")
return False
elif len(cmd) == 1 and cmd[0] == "reload":
if self.__ping():
self.__readConfig()
self.__processCmd([['stop', 'all']], False)
# Configure the server
return self.__processCmd(self.__stream, False)
else:
logSys.error("Could not find server")
return False
else:
return self.__processCmd([cmd])
##
# Start Fail2Ban server.
#
# Start the Fail2ban server in daemon mode.
def __startServerAsync(self, force = False):
args = list()
args.append("fail2ban-server")
args.append("-b")
if force:
args.append("-x")
pid = os.fork()
if pid == 0:
try:
# Use the PATH env
os.execvp("fail2ban-server", args)
except OSError:
try:
# Use the current directory
os.execv("fail2ban-server", args)
except OSError:
print "Could not find fail2ban-server"
os.exit(-1)
def __waitOnServer(self):
# Wait for the server to start
cnt = 0
while not self.__ping():
if cnt > 10:
raise ServerExecutionException("Failed to start server")
time.sleep(0.1)
cnt = cnt + 1
def start(self, argv):
# Command line options
self.__argv = argv
# Reads the command line options.
try:
cmdOpts = 'hc:s:xdviqV'
cmdLongOpts = ['help', 'version']
optList, args = getopt.getopt(self.__argv[1:], cmdOpts, cmdLongOpts)
except getopt.GetoptError:
self.dispUsage()
return False
self.__getCmdLineOptions(optList)
verbose = self.__conf["verbose"]
if verbose <= 0:
logSys.setLevel(logging.ERROR)
elif verbose == 1:
logSys.setLevel(logging.WARN)
elif verbose == 2:
logSys.setLevel(logging.INFO)
else:
logSys.setLevel(logging.DEBUG)
# Add the default logging handler
stdout = logging.StreamHandler(sys.stdout)
# set a format which is simpler for console use
formatter = logging.Formatter('%(levelname)-6s %(message)s')
# tell the handler to use this format
stdout.setFormatter(formatter)
logSys.addHandler(stdout)
# Set the configuration path
self.__configurator.setBaseDir(self.__conf["conf"])
# Set socket path
self.__configurator.readEarly()
socket = self.__configurator.getEarlyOptions()
if self.__conf["socket"] == None:
self.__conf["socket"] = socket["socket"]
logSys.info("Using socket file " + self.__conf["socket"])
if self.__conf["dump"]:
self.__readConfig()
self.dumpConfig(self.__stream)
return True
# Interactive mode
if self.__conf["interactive"]:
try:
ret = True
if len(args) > 0:
ret = self.__processCommand(args)
if ret:
readline.parse_and_bind("tab: complete")
self.dispInteractive()
while True:
cmd = raw_input(self.prompt)
if cmd == "exit" or cmd == "quit":
# Exit
return True
if not cmd == "":
self.__processCommand(shlex.split(cmd))
except (EOFError, KeyboardInterrupt):
print
return True
# Single command mode
else:
if len(args) < 1:
self.dispUsage()
return False
return self.__processCommand(args)
def __readConfig(self):
# Read the configuration
self.__configurator.readAll()
self.__configurator.getAllOptions()
self.__configurator.convertToProtocol()
self.__stream = self.__configurator.getConfigStream()
@staticmethod
def dumpConfig(cmd):
for c in cmd:
print c
return True
class ServerExecutionException(Exception):
pass
if __name__ == "__main__":
client = Fail2banClient()
# Exit with correct return value
if client.start(sys.argv):
sys.exit(0)
else:
sys.exit(-1)

164
fail2ban-regex Executable file
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#!/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: 300 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 300 $"
__date__ = "$Date: 2006-08-23 21:53:09 +0200 (Wed, 23 Aug 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import locale, getopt, sys, time, logging, gc
# Inserts our own modules path first in the list
# fix for bug #343821
sys.path.insert(1, "/usr/lib/fail2ban")
from version import version
from server.filter import Filter
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.regex")
class Fail2banRegex:
def __init__(self):
self.__filter = Filter(None)
# Setup logging
logging.getLogger("fail2ban").handlers = []
self.__hdlr = logging.StreamHandler(sys.stdout)
# set a format which is simpler for console use
formatter = logging.Formatter("%(message)s")
# tell the handler to use this format
self.__hdlr.setFormatter(formatter)
logging.getLogger("fail2ban").addHandler(self.__hdlr)
logging.getLogger("fail2ban").setLevel(logging.ERROR)
def dispVersion(self):
print "Fail2Ban v" + version
print
print "Copyright (c) 2004-2006 Cyril Jaquier"
print "Copyright of modifications held by their respective authors."
print "Licensed under the GNU General Public License v2 (GPL)."
print
print "Written by Cyril Jaquier <lostcontrol@users.sourceforge.net>."
print "Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>."
def dispUsage(self):
print "Usage: "+sys.argv[0]+" <logline> <failregex>"
print
print "Fail2Ban v" + version + " reads log file that contains password failure report"
print "and bans the corresponding IP addresses using firewall rules."
print
print "This tools can test and benchmark your regular expressions for the \"failregex\""
print "option."
print
print "Report bugs to <lostcontrol@users.sourceforge.net>"
def getCmdLineOptions(self, optList):
""" Gets the command line options
"""
for opt in optList:
if opt[0] in ["-h", "--help"]:
self.dispUsage()
sys.exit(0)
elif opt[0] in ["-V", "--version"]:
self.dispVersion()
sys.exit(0)
def setRegex(self, value):
print
self.__filter.setFailRegex(value)
def testRegex(self, line):
print
try:
logging.getLogger("fail2ban").setLevel(logging.DEBUG)
ret = self.__filter.findFailure(line)
print
logging.getLogger("fail2ban").setLevel(logging.CRITICAL)
except IndexError:
print "Sorry, but no <host> found in regex"
return False
if len(ret) == 0:
print "Sorry, no match"
return False
else:
print "Success, the following data were found:"
timeTuple = time.localtime(ret[0][1])
print "Date: " + time.strftime("%a %b %d %H:%M:%S %Y", timeTuple)
ipList = ""
for i in ret:
ipList = ipList + " " + i[0]
print "IP :" + ipList
print
print "Date template hits:"
for template in self.__filter.dateDetector.getTemplates():
print `template.getHits()` + " hit: " + template.getName()
print
print "Benchmark. Executing 1000..."
gc.disable()
total = 0
maxValue = 0
maxPos = 0
minValue = 99999999
minPos = 0
for i in range(1000):
start = time.time()
ret = self.__filter.findFailure(line)
end = time.time()
diff = (end - start) * 1000
total = total + diff
minValue = min(minValue, diff)
if minValue == diff:
minPos = i
maxValue = max(maxValue, diff)
if maxValue == diff:
maxPos = i
gc.enable()
print "Performance"
print "Avg: " + `total / 1000` + " ms"
print "Max: " + `maxValue` + " ms (Run " + `maxPos` + ")"
print "Min: " + `minValue` + " ms (Run " + `minPos` + ")"
return True
if __name__ == "__main__":
regex = Fail2banRegex()
# Reads the command line options.
try:
cmdOpts = 'hV'
cmdLongOpts = ['help', 'version']
optList, args = getopt.getopt(sys.argv[1:], cmdOpts, cmdLongOpts)
except getopt.GetoptError:
regex.dispUsage()
sys.exit(-1)
# Process command line
regex.getCmdLineOptions(optList)
# We need exactly 3 parameters
if len(sys.argv) <> 3:
regex.dispUsage()
sys.exit(-1)
else:
regex.setRegex(sys.argv[2])
ret = regex.testRegex(sys.argv[1])
if ret:
sys.exit(0)
else:
sys.exit(-1)

133
fail2ban-server Executable file
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#!/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: 406 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 406 $"
__date__ = "$Date: 2006-10-05 00:17:53 +0200 (Thu, 05 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import getopt, sys
# Inserts our own modules path first in the list
# fix for bug #343821
sys.path.insert(1, "/usr/lib/fail2ban")
from version import version
from server.server import Server
##
# \mainpage Fail2Ban
#
# \section Introduction
#
# Fail2ban is designed to protect your server against brute force attacks.
# Its first goal was to protect a SSH server.
class Fail2banServer:
def __init__(self):
self.__server = None
self.__argv = None
self.__conf = dict()
self.__conf["background"] = True
self.__conf["force"] = False
self.__conf["socket"] = "/tmp/fail2ban.sock"
def dispVersion(self):
print "Fail2Ban v" + version
print
print "Copyright (c) 2004-2006 Cyril Jaquier"
print "Copyright of modifications held by their respective authors."
print "Licensed under the GNU General Public License v2 (GPL)."
print
print "Written by Cyril Jaquier <lostcontrol@users.sourceforge.net>."
print "Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>."
def dispUsage(self):
""" Prints Fail2Ban command line options and exits
"""
print "Usage: "+self.__argv[0]+" [OPTIONS]"
print
print "Fail2Ban v" + version + " reads log file that contains password failure report"
print "and bans the corresponding IP addresses using firewall rules."
print
print "Only use this command for debugging purpose. Start the server with"
print "fail2ban-client instead."
print
print "Options:"
print " -b start in background"
print " -f start in foreground"
print " -s <FILE> socket path"
print " -x force execution of the server"
print " -h, --help display this help message"
print " -V, --version print the version"
print
print "Report bugs to <lostcontrol@users.sourceforge.net>"
def __getCmdLineOptions(self, optList):
""" Gets the command line options
"""
for opt in optList:
if opt[0] == "-b":
self.__conf["background"] = True
if opt[0] == "-f":
self.__conf["background"] = False
if opt[0] == "-s":
self.__conf["socket"] = opt[1]
if opt[0] == "-x":
self.__conf["force"] = True
if opt[0] in ["-h", "--help"]:
self.dispUsage()
sys.exit(0)
if opt[0] in ["-V", "--version"]:
self.dispVersion()
sys.exit(0)
def start(self, argv):
# Command line options
self.__argv = argv
# Reads the command line options.
try:
cmdOpts = 'bfs:xhV'
cmdLongOpts = ['help', 'version']
optList, args = getopt.getopt(self.__argv[1:], cmdOpts, cmdLongOpts)
except getopt.GetoptError:
self.dispUsage()
self.__getCmdLineOptions(optList)
try:
self.__server = Server(self.__conf["background"])
self.__server.start(self.__conf["socket"], self.__conf["force"])
return True
except Exception, e:
print e
self.__server.quit()
return False
if __name__ == "__main__":
server = Fail2banServer()
if server.start(sys.argv):
sys.exit(0)
else:
sys.exit(-1)

79
fail2ban-testcases Executable file
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#!/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: 429 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 429 $"
__date__ = "$Date: 2006-10-23 22:13:21 +0200 (Mon, 23 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest, logging, sys
# Inserts our own modules path first in the list
# fix for bug #343821
sys.path.insert(1, "/usr/lib/fail2ban")
from version import version
from testcases import banmanagertestcase
from testcases import clientreadertestcase
from testcases import failmanagertestcase
from testcases import filtertestcase
from testcases import servertestcase
from testcases import datedetectortestcase
from testcases import actiontestcase
from server.mytime import MyTime
# Set the time to a fixed, known value
# Sun Aug 14 12:00:00 CEST 2005
MyTime.setTime(1124013600)
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
# Add the default logging handler
stdout = logging.StreamHandler(sys.stdout)
logSys.addHandler(stdout)
logSys.setLevel(logging.FATAL)
print "Fail2ban " + version + " test suite. Please wait..."
tests = unittest.TestSuite()
# Filter
tests.addTest(unittest.makeSuite(filtertestcase.IgnoreIP))
tests.addTest(unittest.makeSuite(filtertestcase.LogFile))
tests.addTest(unittest.makeSuite(filtertestcase.GetFailures))
# Server
#tests.addTest(unittest.makeSuite(servertestcase.StartStop))
#tests.addTest(unittest.makeSuite(servertestcase.Transmitter))
tests.addTest(unittest.makeSuite(actiontestcase.ExecuteAction))
# FailManager
tests.addTest(unittest.makeSuite(failmanagertestcase.AddFailure))
# BanManager
tests.addTest(unittest.makeSuite(banmanagertestcase.AddFailure))
# ClientReader
tests.addTest(unittest.makeSuite(clientreadertestcase.JailReaderTest))
# DateDetector
tests.addTest(unittest.makeSuite(datedetectortestcase.DateDetectorTest))
# Tests runner
testRunner = unittest.TextTestRunner()
testRunner.run(tests)

542
fail2ban.py
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@ -1,542 +0,0 @@
# 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
# Modified by: Yaroslav Halchenko (SYSLOG, findtime)
#
# $Revision: 1.24 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.24 $"
__date__ = "$Date: 2006/01/22 11:10:29 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import time, sys, getopt, os, string, signal, logging, logging.handlers, copy
from ConfigParser import *
from version import version
from firewall.firewall import Firewall
from logreader.logreader import LogReader
from confreader.configreader import ConfigReader
from utils.mail import Mail
from utils.pidlock import PIDLock
from utils.dns import *
from utils.process import *
# Get the instance of the logger.
logSys = logging.getLogger("fail2ban")
# Get PID lock file instance
pidLock = PIDLock()
# Global variables
logFwList = list()
conf = dict()
def dispUsage():
""" Prints Fail2Ban command line options and exits
"""
print "Usage: "+sys.argv[0]+" [OPTIONS]"
print
print "Fail2Ban v"+version+" reads log file that contains password failure report"
print "and bans the corresponding IP addresses using firewall rules."
print
print " -b start in background"
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 instance"
print " -r <VALUE> allow a max of VALUE password failure [maxfailures]"
print " -t <TIME> ban IP for TIME seconds [bantime]"
print " -f <TIME> lifetime in seconds of failed entry [findtime]"
print " -v verbose. Use twice for greater effect"
print " -V print software version"
print
print "Report bugs to <lostcontrol@users.sourceforge.net>"
sys.exit(0)
def dispVersion():
""" Prints Fail2Ban version and exits
"""
print sys.argv[0]+" "+version
sys.exit(0)
def checkForRoot():
""" Check for root user.
"""
uid = `os.getuid()`
if uid == '0':
return True
else:
return False
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 setFwMustCheck(value):
""" Set the mustCheck value of the firewalls (True/False)
"""
for element in logFwList:
element[2].setMustCheck(value)
def initializeFwRules():
""" Initializes firewalls by running cmdstart and then
fwstart for each section
"""
# Execute global start command
executeCmd(conf["cmdstart"], conf["debug"])
# Execute start command of each section
for element in logFwList:
element[2].initialize(conf["debug"])
def reBan():
""" For each section asks the Firewall to reban known IPs
"""
for element in logFwList:
element[2].reBan(conf["debug"])
def restoreFwRules():
""" Flush the ban list
"""
logSys.warn("Restoring firewall rules...")
try:
for element in logFwList:
# Execute end command of each section
element[2].restore(conf["debug"])
# Execute global end command
executeCmd(conf["cmdend"], conf["debug"])
except ExternalError:
# nothing bad really - we can survive :-)
pass
def killApp():
""" Flush the ban list, remove the PID lock file and exit
nicely.
"""
# Restore Fw rules
restoreFwRules()
# Remove the PID lock
pidLock.remove()
logSys.info("Exiting...")
logging.shutdown()
sys.exit(0)
def getCmdLineOptions(optList):
""" Gets the command line options
"""
for opt in optList:
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] == "-t":
try:
conf["bantime"] = int(opt[1])
except ValueError:
logSys.warn("banTime must be an integer")
logSys.warn("Using default value")
if opt[0] == "-f":
try:
conf["findtime"] = int(opt[1])
except ValueError:
logSys.warn("findTime must be an integer")
logSys.warn("Using default value")
if opt[0] == "-i":
conf["ignoreip"] = opt[1]
if opt[0] == "-r":
conf["maxfailures"] = int(opt[1])
if opt[0] == "-p":
conf["pidlock"] = opt[1]
if opt[0] == "-k":
conf["kill"] = True
def main():
""" Fail2Ban main function
"""
# Add the default logging handler
stdout = logging.StreamHandler(sys.stdout)
logSys.addHandler(stdout)
# Default formatter
formatterstring='%(levelname)s: %(message)s'
formatter = logging.Formatter('%(asctime)s ' + formatterstring)
stdout.setFormatter(formatter)
conf["kill"] = False
conf["debug"] = False
conf["verbose"] = 0
conf["conffile"] = "/etc/fail2ban.conf"
# Reads the command line options.
try:
cmdOpts = 'hvVbdkc:t:i:r:p:'
cmdLongOpts = ['help','version']
optList, args = getopt.getopt(sys.argv[1:], cmdOpts, cmdLongOpts)
except getopt.GetoptError:
dispUsage()
# Pre-parsing of command line options for the -c option
for opt in optList:
if opt[0] == "-c":
conf["conffile"] = opt[1]
if opt[0] in ["-h", "--help"]:
dispUsage()
if opt[0] in ["-V", "--version"]:
dispVersion()
# Reads the config file and create a LogReader instance for
# each log file to check.
confReader = ConfigReader(conf["conffile"])
confReader.openConf()
# Options
optionValues = (["bool", "background", False],
["str", "logtargets", "/var/log/fail2ban.log"],
["str", "syslog-target", "/dev/log"],
["int", "syslog-facility", 1],
["str", "pidlock", "/var/run/fail2ban.pid"],
["int", "maxfailures", 5],
["int", "bantime", 600],
["int", "findtime", 600],
["str", "ignoreip", ""],
["int", "polltime", 1],
["str", "cmdstart", ""],
["str", "cmdend", ""],
["int", "reinittime", 100],
["int", "maxreinits", 100])
# Gets global configuration options
conf.update(confReader.getLogOptions("DEFAULT", optionValues))
# Gets command line options
getCmdLineOptions(optList)
# PID lock
pidLock.setPath(conf["pidlock"])
# Now we can kill properly a running instance if needed
if conf["kill"]:
pid = pidLock.exists()
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)
# Start Fail2Ban in daemon mode
if conf["background"]:
retCode = createDaemon()
signal.signal(signal.SIGTERM, sigTERMhandler)
if not retCode:
logSys.error("Unable to start daemon")
sys.exit(-1)
# Process some options
# First setup Log targets
# Bug fix for #1234699
os.umask(0077)
for target in conf["logtargets"].split():
# target formatter
# By default global formatter is taken. Is different for SYSLOG
tformatter = formatter
if target == "STDERR":
hdlr = logging.StreamHandler(sys.stderr)
elif target == "SYSLOG":
# SYSLOG target can be either
# a socket (file, so it starts with /)
# or hostname
# or hostname:port
syslogtargets = re.findall("(/[\w/]*)|([^/ ][^: ]*)(:(\d+)){,1}",
conf["syslog-target"])
# we are waiting for a single match
syslogtargets = syslogtargets[0]
# assign facility if it was defined
if conf["syslog-facility"] < 0:
facility = handlers.SysLogHandler.LOG_USER
else:
facility = conf["syslog-facility"]
if len(syslogtargets) == 0: # everything default
hdlr = logging.handlers.SysLogHandler()
else:
if not ( syslogtargets[0] == "" ): # got socket
syslogtarget = syslogtargets[0]
else: # got hostname and maybe a port
if syslogtargets[3] == "": # no port specified
port = 514
else:
port = int(syslogtargets[3])
syslogtarget = (syslogtargets[1], port)
hdlr = logging.handlers.SysLogHandler(syslogtarget, facility)
tformatter = logging.Formatter("%(asctime)s %(name)s " +
formatterstring, "%b %e %T");
else:
# Target should be a file
try:
open(target, "a")
hdlr = logging.FileHandler(target)
except IOError:
logSys.error("Unable to log to " + target)
continue
# Set formatter and add handler to logger
hdlr.setFormatter(tformatter)
logSys.addHandler(hdlr)
# Verbose level
if conf["verbose"]:
logSys.warn("Verbose level is "+`conf["verbose"]`)
if conf["verbose"] == 1:
logSys.setLevel(logging.INFO)
elif conf["verbose"] > 1:
logSys.setLevel(logging.DEBUG)
if conf["verbose"] > 2:
formatterstring = ('%(levelname)s: [%(filename)s (%(lineno)d)] ' +
'%(message)s')
formatter = logging.Formatter("%(asctime)s " + formatterstring)
stdout.setFormatter(formatter)
# Debug mode. Should only be used by developers
if conf["debug"]:
logSys.warn("DEBUG MODE: FIREWALL COMMANDS ARE _NOT_ EXECUTED BUT " +
"ONLY DISPLAYED IN THE LOG MESSAGES")
# Ignores IP list
ignoreIPList = conf["ignoreip"].split(' ')
# 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 = pidLock.exists()
if pid:
logSys.error("Fail2Ban already running with PID "+pid)
sys.exit(-1)
else:
ret = pidLock.create()
if not ret:
# Unable to create PID lock. Exit
sys.exit(-1)
logSys.debug("ConfFile is " + conf["conffile"])
logSys.debug("BanTime is " + `conf["bantime"]`)
logSys.debug("FindTime is " + `conf["findtime"]`)
logSys.debug("MaxFailure is " + `conf["maxfailures"]`)
# Options
optionValues = (["bool", "enabled", False],
["str", "host", "localhost"],
["int", "port", "25"],
["str", "from", "root"],
["str", "to", "root"],
["str", "user", ''],
["str", "password", ''],
["bool", "localtime", False],
["str", "subject", "[Fail2Ban] Banned <ip>"],
["str", "message", "Fail2Ban notification"])
# Gets global configuration options
mailConf = confReader.getLogOptions("MAIL", optionValues)
# Create mailer if enabled
if mailConf["enabled"]:
logSys.debug("Mail enabled")
mail = Mail(mailConf["host"], mailConf["port"])
mail.setFromAddr(mailConf["from"])
mail.setUser(mailConf["user"])
mail.setPassword(mailConf["password"])
mail.setToAddr(mailConf["to"])
mail.setLocalTimeFlag(mailConf["localtime"])
logSys.debug("to: " + mailConf["to"] + " from: " + mailConf["from"])
# Options
optionValues = (["bool", "enabled", False],
["str", "logfile", "/dev/null"],
["int", "maxfailures", conf["maxfailures"]],
["int", "bantime", conf["bantime"]],
["int", "findtime", conf["findtime"]],
["str", "timeregex", ""],
["str", "timepattern", ""],
["str", "failregex", ""],
["str", "fwstart", ""],
["str", "fwend", ""],
["str", "fwban", ""],
["str", "fwunban", ""],
["str", "fwcheck", ""])
logSys.info("Fail2Ban v" + version + " is running")
# Gets the options of each sections
for t in confReader.getSections():
l = confReader.getLogOptions(t, optionValues)
if l["enabled"]:
# Creates a logreader object
lObj = LogReader(l["logfile"], l["timeregex"], l["timepattern"],
l["failregex"], l["maxfailures"], l["findtime"])
# Creates a firewall object
fObj = Firewall(l["fwstart"], l["fwend"], l["fwban"], l["fwunban"],
l["fwcheck"], l["bantime"])
# "Name" the firewall
fObj.setSection(t)
# Links them into a list. I'm not really happy
# with this :/
logFwList.append([t, lObj, fObj, dict(), l])
# We add 127.0.0.1 to the ignore list has we do not want
# to be ban ourself.
for element in logFwList:
element[1].addIgnoreIP("127.0.0.1")
while len(ignoreIPList) > 0:
ip = ignoreIPList.pop()
# Bug fix for #1239557
if isValidIP(ip):
for element in logFwList:
element[1].addIgnoreIP(ip)
else:
logSys.warn(ip + " is not a valid IP address")
# Startup loop -- necessary to avoid crash if it takes time for iptables
# to startup. To avoid introduction of new config options, reusing
# maxreinits and polltime.
reinits = 0
while True:
try:
initializeFwRules()
break
except ExternalError, e:
reinits += 1
logSys.warn(e)
if conf["maxreinits"] < 0 or (reinits < conf["maxreinits"]):
logSys.warn("#%d attempt to initialize the firewalls" % reinits)
else:
logSys.error("Exiting: Too many attempts to initialize the " +
"firewall")
killApp()
time.sleep(conf["polltime"])
# try to reinit once if it fails immediately
lastReinitTime = time.time() - conf["reinittime"] - 1
reinits = 0
# Main loop
while True:
try:
sys.stdout.flush()
sys.stderr.flush()
# Checks if some IP have to be remove from ban
# list.
for element in logFwList:
element[2].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 logFwList:
if element[1].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.
for element in modList:
e = element[1].getFailures()
for key in e.iterkeys():
if element[3].has_key(key):
element[3][key] = (element[3][key][0] + e[key][0],
e[key][1])
else:
element[3][key] = (e[key][0], e[key][1])
# Remove the oldest failure attempts from the global list.
# We iterate the failure list and ban IP that make
# *retryAllowed* login failures.
unixTime = time.time()
for element in logFwList:
fails = element[3].copy()
findTime = element[1].getFindTime()
for attempt in fails:
failTime = fails[attempt][1]
if failTime < unixTime - findTime:
del element[3][attempt]
elif fails[attempt][0] >= element[1].getMaxRetry():
aInfo = {"section": element[0],
"ip": attempt,
"failures": element[3][attempt][0],
"failtime": failTime}
logSys.info(element[0] + ": " + aInfo["ip"] +
" has " + `aInfo["failures"]` +
" login failure(s). Banned.")
element[2].addBanIP(aInfo, conf["debug"])
# Send a mail notification
if 'mail' in locals():
mail.sendmail(mailConf["subject"],
mailConf["message"], aInfo)
del element[3][attempt]
except ExternalError, e:
# Something wrong while dealing with Iptables.
# May be chain got removed?
reinits += 1
logSys.error(e)
if ((unixTime - lastReinitTime > conf["reinittime"]) and
((conf["maxreinits"] < 0) or (reinits < conf["maxreinits"]))):
logSys.warn("#%d reinitialization of firewalls"%reinits)
lastReinitTime = unixTime
else:
logSys.error("Exiting: reinits follow too often, or too many " +
"reinit attempts")
killApp()
# We already failed runCheck so disable it until
# restoring a safe state
setFwMustCheck(False)
# save firewalls to keep a list of IPs for rebanning
logFwListCopy = copy.deepcopy(logFwList)
try:
# restore as much as possible
restoreFwRules()
# reinitialize all the chains
initializeFwRules()
# restore the lists of baned IPs
logFwList.__init__(logFwListCopy)
# reBan known IPs
reBan()
# Now we can enable the runCheck test again
setFwMustCheck(True)
except ExternalError:
raise ExternalError("Big Oops happened: situation is out of " +
"control. Something is wrong with your " +
"setup. Please check your settings")
except KeyboardInterrupt:
# When the user press <ctrl>+<c> we exit nicely.
killApp()

14
config/gentoo-initd → files/gentoo-initd
View File

@ -19,9 +19,9 @@
#
# $Revision: 1.2 $
opts="start stop restart showlog"
opts="start stop restart reload showlog"
FAIL2BAN="/usr/bin/fail2ban"
FAIL2BAN="/usr/bin/fail2ban-client"
depend() {
need net
@ -31,18 +31,20 @@ depend() {
start() {
ebegin "Starting fail2ban"
${FAIL2BAN} -b ${FAIL2BAN_OPTS} > /dev/null
${FAIL2BAN} start &> /dev/null
eend $? "Failed to start fail2ban"
}
stop() {
ebegin "Stopping fail2ban"
${FAIL2BAN} -k > /dev/null
${FAIL2BAN} stop &> /dev/null
eend $? "Failed to stop fail2ban"
}
zap() {
rm /var/run/fail2ban.pid
reload() {
ebegin "Reloading fail2ban"
${FAIL2BAN} reload > /dev/null
eend $? "Failed to reload fail2ban"
}
showlog(){

89
files/redhat-initd Executable file
View File

@ -0,0 +1,89 @@
#!/bin/bash
#
# chkconfig: 345 92 08
# description: Fail2ban daemon
# http://fail2ban.sourceforge.net/wiki/index.php/Main_Page
# process name: fail2ban-server
#
#
# Author: Tyler Owen
#
# Source function library.
. /etc/init.d/functions
# Check that the config file exists
[ -f /etc/fail2ban/fail2ban.conf ] || exit 0
FAIL2BAN="/usr/bin/fail2ban-client"
RETVAL=0
getpid() {
#pid=`ps -ef | grep fail2ban-|grep -v grep|grep -v bash|awk '{print $2}'`
pid=`ps -ef | grep fail2ban-|grep -v grep|awk '{print $2}'`
}
start() {
echo -n $"Starting fail2ban: "
getpid
if [ -z "$pid"]; then
$FAIL2BAN start > /dev/null
RETVAL=$?
fi
if [ $RETVAL -eq 0 ]; then
touch /var/lock/subsys/fail2ban
echo_success
else
echo_failure
fi
echo
return $RETVAL
}
stop() {
echo -n $"Stopping fail2ban: "
getpid
RETVAL=$?
if [ -n "$pid" ]; then
$FAIL2BAN stop > /dev/null
fi
getpid
if [ -z "$pid" ]; then
rm -f /var/lock/subsys/fail2ban
echo_success
else
echo_failure
fi
echo
return $RETVAL
}
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
status)
getpid
if [ -n "$pid" ]; then
echo "Fail2ban (pid $pid) is running..."
else
RETVAL=1
echo "Fail2ban is stopped"
fi
;;
restart)
start
stop
;;
*)
echo $"Usage: $0 {start|stop|status|restart}"
exit 1
;;
esac
exit $RETVAL

192
firewall/firewall.py
View File

@ -1,192 +0,0 @@
# 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: 1.10 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.10 $"
__date__ = "$Date: 2005/12/16 23:48:52 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import time, os, logging, re
from utils.process import executeCmd
from utils.strings import replaceTag
# unfortunately but I have to bring ExternalError in especially for
# flushBanList: if one of IPs got flushed manually outside or something, we
# might endup with not "full" flush unless we handle exception within the loop
from utils.process import ExternalError
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
class Firewall:
""" Manages the ban list and executes the command that ban
the IP.
"""
def __init__(self, startRule, endRule, banRule, unBanRule, checkRule,
banTime):
self.banRule = banRule
self.unBanRule = unBanRule
self.checkRule = checkRule
self.startRule = startRule
self.endRule = endRule
self.banTime = banTime
self.banList = dict()
self.section = ""
self.mustCheck = True
def setSection(self, section):
""" Set optional section name for clarify of logging
"""
self.section = section
def getMustCheck(self):
""" Return true if the runCheck test is executed
"""
return self.mustCheck
def setMustCheck(self, value):
""" Enable or disable the execution of runCheck test
"""
self.mustCheck = value
def initialize(self, debug):
logSys.debug("%s: Initialize firewall rules"%self.section)
executeCmd(self.startRule, debug)
def restore(self, debug):
logSys.debug("%s: Restore firewall rules"%self.section)
try:
self.flushBanList(debug)
executeCmd(self.endRule, debug)
except ExternalError:
pass
def addBanIP(self, aInfo, debug):
""" Bans an IP.
"""
ip = aInfo["ip"]
if not self.inBanList(ip):
crtTime = time.time()
if self.banTime < 0:
banMsg = "Ban (permanent)"
else:
banMsg = "Ban (%d s)"%self.banTime
logSys.warn("%s: %s "%(self.section, banMsg) + ip)
self.banList[ip] = crtTime
aInfo["bantime"] = crtTime
self.runCheck(debug)
cmd = self.banIP(aInfo)
if executeCmd(cmd, debug):
raise ExternalError("Firewall: execution of fwban command " +
"'%s' failed"%cmd)
else:
self.runCheck(debug)
logSys.error("%s: "%self.section+ip+" already in ban list")
def delBanIP(self, aInfo, debug):
""" Unban an IP.
"""
ip = aInfo["ip"]
if self.inBanList(ip):
logSys.warn("%s: Unban "%self.section + ip)
del self.banList[ip]
self.runCheck(debug)
executeCmd(self.unBanIP(aInfo), debug)
else:
logSys.error("%s: "%self.section+ip+" not in ban list")
def reBan(self, debug):
""" Re-Bans known IPs.
TODO: implement "failures" and "failtime"
"""
for ip in self.banList:
aInfo = {"ip": ip,
"bantime":self.banList[ip]}
logSys.warn("%s: ReBan "%self.section + ip)
# next piece is similar to the on in addBanIp
# so might be one more function will not hurt
self.runCheck(debug)
executeCmd(self.banIP(aInfo), debug)
def inBanList(self, ip):
""" Checks if IP is in ban list.
"""
return self.banList.has_key(ip)
def runCheck(self, debug):
""" Runs fwcheck command and throws an exception if it returns non-0
result
"""
if self.mustCheck:
executeCmd(self.checkRule, debug)
else:
return None
def checkForUnBan(self, debug):
""" Check for IP to remove from ban list. If banTime is smaller than
zero, IP will be never removed.
"""
if self.banTime < 0:
# Permanent banning
return
banListTemp = self.banList.copy()
for element in banListTemp.iteritems():
btime = element[1]
if btime < time.time()-self.banTime:
aInfo = {"ip": element[0],
"bantime": btime,
"unbantime": time.time()}
self.delBanIP(aInfo, 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():
aInfo = {"ip": element[0],
"bantime": element[1],
"unbantime": time.time()}
try:
self.delBanIP(aInfo, debug)
except ExternalError:
# we must let it fail here in the loop, or we don't
# flush properly
pass
def banIP(self, aInfo):
""" Returns query to ban IP.
"""
query = replaceTag(self.banRule, aInfo)
return query
def unBanIP(self, aInfo):
""" Returns query to unban IP.
"""
query = replaceTag(self.unBanRule, aInfo)
return query
def viewBanList(self):
""" Prints the ban list on screen. Usefull for debugging.
"""
for element in self.banList.iteritems():
print element

225
logreader/logreader.py
View File

@ -1,225 +0,0 @@
# 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: 1.16 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.16 $"
__date__ = "$Date: 2006/01/03 15:13:04 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import os, sys, time, re, logging
from utils.dns import *
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
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, logPath, timeregex, timepattern, failregex,
maxRetry, findTime):
self.logPath = logPath
self.maxRetry = maxRetry
self.timeregex = timeregex
self.timepattern = timepattern
self.failregex = failregex
self.findTime = findTime
self.ignoreIpList = []
self.lastModTime = 0
self.lastPos = 0
self.lastDate = 0
self.logStats = None
def getMaxRetry(self):
""" Gets the maximum number of failures
"""
return self.maxRetry
def getFindTime(self):
""" Gets the find time.
"""
return self.findTime
def addIgnoreIP(self, ip):
""" Adds an IP to the ignore list.
"""
logSys.debug("Add "+ip+" to ignore list")
self.ignoreIpList.append(ip)
def inIgnoreIPList(self, ip):
""" Checks if IP is in the ignore list.
"""
for i in self.ignoreIpList:
s = i.split('/', 1)
# IP address without CIDR mask
if len(s) == 1:
s.insert(1, '32')
s[1] = long(s[1])
a = cidr(s[0], s[1])
b = cidr(ip, s[1])
if a == b:
return True
return False
def openLogFile(self):
""" Opens the log file specified on init.
"""
try:
fileHandler = open(self.logPath)
except OSError:
logSys.error("Unable to open "+self.logPath)
return fileHandler
def isModified(self):
""" Checks if the log file has been modified using os.stat().
"""
try:
self.logStats = os.stat(self.logPath)
if self.lastModTime == self.logStats.st_mtime:
return False
else:
logSys.debug(self.logPath+" has been modified")
self.lastModTime = self.logStats.st_mtime
return True
except OSError:
logSys.error("Unable to get stat on "+self.logPath)
return False
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):
logSys.debug("Date " + `self.lastDate` + " is " + "smaller than " +
`self.getTime(line)`)
logSys.debug("Log rotation detected for " + self.logPath)
self.lastPos = 0
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()
logSys.debug(self.logPath)
logFile = self.openLogFile()
self.setFilePos(logFile)
lastLine = None
for line in logFile:
if not self.hasTime(line):
# There is no valid time in this line
continue
lastLine = line
for element in self.findFailure(line):
ip = element[0]
unixTime = element[1]
if unixTime < time.time()-self.findTime:
break
if self.inIgnoreIPList(ip):
logSys.debug("Ignore "+ip)
continue
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()
if lastLine:
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 hasTime(self, line):
""" Return true if the line contains a date
"""
timeMatch = re.search(self.timeregex, line)
if timeMatch:
return True
else:
return False
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.
"""
try:
# Check if the parsed value is in TAI64N format
if not self.timepattern.lower() == "tai64n":
date = list(time.strptime(value, self.timepattern))
else:
# extract part of format which represents seconds since epoch
seconds_since_epoch = value[2:17]
date = list(time.gmtime(int(seconds_since_epoch, 16)))
except ValueError, e:
logSys.error(e)
logSys.error("Please check the format and your locale settings.")
return None
if date[0] < 2000:
# There is probably no year field in the logs
date[0] = time.gmtime()[0]
# Bug fix for #1241756
# If the date is greater than the current time, we suppose
# that the log is not from this year but from the year before
if time.mktime(date) > time.time():
date[0] -= 1
unixTime = time.mktime(date)
return unixTime

96
man/fail2ban-client.1 Normal file
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@ -0,0 +1,96 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.36.
.TH FAIL2BAN-CLIENT "1" "November 2006" "fail2ban-client v0.7.4" "User Commands"
.SH NAME
fail2ban-client \- configure and control the server
.SH SYNOPSIS
.B fail2ban-client
[\fIOPTIONS\fR]... \fI<COMMAND>\fR
.SH DESCRIPTION
Fail2Ban v0.7.4 reads log file that contains password failure report
and bans the corresponding IP addresses using firewall rules.
.SH OPTIONS
.TP
\fB\-c\fR <DIR>
configuration directory
.TP
\fB\-s\fR <FILE>
socket path
.TP
\fB\-d\fR
dump configuration. For debugging
.TP
\fB\-i\fR
interactive mode
.TP
\fB\-v\fR
increase verbosity
.TP
\fB\-q\fR
decrease verbosity
.TP
\fB\-x\fR
force execution of the server
.TP
\fB\-h\fR, \fB\-\-help\fR
display this help message
.TP
\fB\-V\fR, \fB\-\-version\fR
print the version
.SH COMMAND
.TP
start
start the server and the jails
.TP
reload
reload the configuration
.TP
stop
stop all jails and terminate the server
.TP
status
get the current status
.TP
set loglevel <LEVEL>
set loglevel to <LEVEL>
.TP
get loglevel
get loglevel
.TP
set logtarget <TARGET>
set log target to <TARGET>
.TP
get logtarget
get log target
.TP
add <JAIL> [BACKEND]
create <JAIL> using [BACKEND]
.TP
set <JAIL> <CMD>
set the <CMD> value for <JAIL>
.TP
get <JAIL> <CMD>
get the <CMD> value for <JAIL>
.TP
start <JAIL>
start <JAIL>
.TP
stop <JAIL>
stop <JAIL>. The jail is removed
.TP
status <JAIL>
get the current status of <JAIL>
.SH FILES
\fI/etc/fail2ban/*\fR
.SH AUTHOR
Written by Cyril Jaquier <lostcontrol@users.sourceforge.net>.
Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>.
.SH "REPORTING BUGS"
Report bugs to <lostcontrol@users.sourceforge.net>
.SH COPYRIGHT
Copyright \(co 2004-2006 Cyril Jaquier
.br
Copyright of modifications held by their respective authors.
Licensed under the GNU General Public License v2 (GPL).
.SH "SEE ALSO"
.br
fail2ban-server(1)

12
man/fail2ban-client.h2m Normal file
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@ -0,0 +1,12 @@
Include file for help2man man page
$Id: $
[name]
fail2ban-client \- configure and control the server
[files]
\fI/etc/fail2ban/*\fR
[see also]
.br
fail2ban-server(1)

27
man/fail2ban-regex.1 Normal file
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@ -0,0 +1,27 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.36.
.TH FAIL2BAN-REGEX "1" "November 2006" "fail2ban-regex v0.7.4" "User Commands"
.SH NAME
fail2ban-regex \- test Fail2ban "failregex" option
.SH SYNOPSIS
.B fail2ban-regex
\fI<logline> <failregex>\fR
.SH DESCRIPTION
Fail2Ban v0.7.4 reads log file that contains password failure report
and bans the corresponding IP addresses using firewall rules.
.PP
This tools can test and benchmark your regular expressions for the "failregex"
option.
.SH AUTHOR
Written by Cyril Jaquier <lostcontrol@users.sourceforge.net>.
Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>.
.SH "REPORTING BUGS"
Report bugs to <lostcontrol@users.sourceforge.net>
.SH COPYRIGHT
Copyright \(co 2004-2006 Cyril Jaquier
.br
Copyright of modifications held by their respective authors.
Licensed under the GNU General Public License v2 (GPL).
.SH "SEE ALSO"
.br
fail2ban-client(1)
fail2ban-server(1)

10
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@ -0,0 +1,10 @@
Include file for help2man man page
$Id: $
[name]
fail2ban-regex \- test Fail2ban "failregex" option
[see also]
.br
fail2ban-client(1)
fail2ban-server(1)

45
man/fail2ban-server.1 Normal file
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@ -0,0 +1,45 @@
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.36.
.TH FAIL2BAN-SERVER "1" "November 2006" "fail2ban-server v0.7.4" "User Commands"
.SH NAME
fail2ban-server \- start the server
.SH SYNOPSIS
.B fail2ban-server
[\fIOPTIONS\fR]
.SH DESCRIPTION
Fail2Ban v0.7.4 reads log file that contains password failure report
and bans the corresponding IP addresses using firewall rules.
.PP
Only use this command for debugging purpose. Start the server with
fail2ban\-client instead.
.SH OPTIONS
.TP
\fB\-b\fR
start in background
.TP
\fB\-f\fR
start in foreground
.TP
\fB\-s\fR <FILE>
socket path
.TP
\fB\-x\fR
force execution of the server
.TP
\fB\-h\fR, \fB\-\-help\fR
display this help message
.TP
\fB\-V\fR, \fB\-\-version\fR
print the version
.SH AUTHOR
Written by Cyril Jaquier <lostcontrol@users.sourceforge.net>.
Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>.
.SH "REPORTING BUGS"
Report bugs to <lostcontrol@users.sourceforge.net>
.SH COPYRIGHT
Copyright \(co 2004-2006 Cyril Jaquier
.br
Copyright of modifications held by their respective authors.
Licensed under the GNU General Public License v2 (GPL).
.SH "SEE ALSO"
.br
fail2ban-client(1)

9
man/fail2ban-server.h2m Normal file
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@ -0,0 +1,9 @@
Include file for help2man man page
$Id: $
[name]
fail2ban-server \- start the server
[see also]
.br
fail2ban-client(1)

58
man/fail2ban.8
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@ -1,58 +0,0 @@
.\"
.TH "FAIL2BAN" "8" "July 2005" "Cyril Jaquier" "System administration tools"
.SH "NAME"
fail2ban \- bans IP that makes too many password failures
.SH "SYNOPSIS"
.B fail2ban
[\fIOPTIONS\fR]
.SH "DESCRIPTION"
\fBFail2Ban\fR reads log file that contains password failure report
and bans the corresponding IP addresses using firewall rules. It updates
firewall rules to reject the IP address.
.SH "OPTIONS"
.TP
\fB\-b\fR
start in background
.TP
\fB\-c\fR \fIFILE\fR
read configuration file \fIFILE\fR
.TP
\fB\-p\fR \fIFILE\fR
create PID lock in \fIFILE\fR
.TP
\fB\-h, \-\-help\fR
display this help message
.TP
\fB\-i\fR \fIIP\fR
\fIIP\fR(s) to ignore
.TP
\fB\-k\fR
kill a currently running Fail2Ban instance
.TP
\fB\-r\fR \fIVALUE\fR
allow a max of \fIVALUE\fR password failure [maxfailures]
.TP
\fB\-t\fR \fITIME\fR
ban IP for \fITIME\fR seconds [bantime]
.TP
\fB\-f\fR \fITIME\fR
lifetime in seconds of failed entry [findtime]
.TP
\fB\-v\fR
verbose. Use twice for greater effect
.TP
\fB\-V, \-\-version\fR
print software version
.SH "FILES"
.I /etc/fail2ban.conf
.RS
The configuration file. See \fBfail2ban.conf\fR(5) for further details.
.SH "REPORTING BUGS"
Please report bugs at http://sourceforge.net/projects/fail2ban/
via bug tracker
.SH "AUTHOR"
Cyril Jaquier <lostcontrol@users.sourceforge.net>
.SH "SEE ALSO"
.TP
See
.BR "http://fail2ban.sourceforge.net/".

20
man/fail2ban.conf.5
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@ -1,20 +0,0 @@
.\"
.TH "FAIL2BAN.CONF" "5" "July 2005" "Cyril Jaquier" "System administration tools"
.SH "NAME"
fail2ban.conf \- configuration data for fail2ban
.SH "DESCRIPTION"
\fB/etc/fail2ban.conf\fR contains data about the general configuration of fail2ban, the mail notification and services to monitor.
.SH "VARIABLES"
Please look at the file itself
.SH "FILES"
.I /etc/fail2ban.conf
.SH "REPORTING BUGS"
Please report bugs at http://sourceforge.net/projects/fail2ban/
via bug tracker
.SH "AUTHOR"
Cyril Jaquier <lostcontrol@users.sourceforge.net>
.SH "SEE ALSO"
.BR fail2ban (8)
.TP
See
.BR "http://fail2ban.sourceforge.net/".

20
man/generate-man Executable file
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@ -0,0 +1,20 @@
#!/bin/bash
# fail2ban-client
echo -n "Generating fail2ban-client "
help2man --section=1 --no-info --include=fail2ban-client.h2m --output fail2ban-client.1 ../fail2ban-client
echo "[done]"
echo -n "Patching fail2ban-client "
sed -i -e 's/.SS "Command:"/.SH COMMAND/' fail2ban-client.1
echo "[done]"
# fail2ban-server
echo -n "Generating fail2ban-server "
help2man --section=1 --no-info --include=fail2ban-server.h2m --output fail2ban-server.1 ../fail2ban-server
echo "[done]"
# fail2ban-regex
echo -n "Generating fail2ban-regex "
help2man --section=1 --no-info --include=fail2ban-regex.h2m --output fail2ban-regex.1 ../fail2ban-regex
echo "[done]"

8
logreader/__init__.py → server/__init__.py
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@ -16,10 +16,10 @@
# Author: Cyril Jaquier
#
# $Revision: 1.1 $
# $Revision: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.1 $"
__date__ = "$Date: 2004/10/10 13:33:40 $"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
__license__ = "GPL"

226
server/action.py Normal file
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@ -0,0 +1,226 @@
# 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: 434 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 434 $"
__date__ = "$Date: 2006-10-24 21:49:31 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging, os
#from subprocess import call
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.actions.action")
##
# Execute commands.
#
# This class reads the failures from the Jail queue and decide if an
# action has to be taken. A BanManager take care of the banned IP
# addresses.
class Action:
def __init__(self, name):
self.__name = name
self.__cInfo = dict()
## Command executed in order to initialize the system.
self.__actionStart = ''
## Command executed when an IP address gets banned.
self.__actionBan = ''
## Command executed when an IP address gets removed.
self.__actionUnban = ''
## Command executed in order to check requirements.
self.__actionCheck = ''
## Command executed in order to stop the system.
self.__actionStop = ''
logSys.debug("Created Action")
def setName(self, name):
self.__name = name
def getName(self):
return self.__name
def setCInfo(self, key, value):
self.__cInfo[key] = value
def getCInfo(self, key):
return self.__cInfo[key]
def delCInfo(self, key):
del self.__cInfo[key]
##
# Set the "start" command.
#
# @param value the command
def setActionStart(self, value):
self.__actionStart = value
logSys.info("Set actionStart = %s" % value)
##
# Get the "start" command.
#
# @return the command
def getActionStart(self):
return self.__actionStart
def execActionStart(self):
startCmd = Action.replaceTag(self.__actionStart, self.__cInfo)
return Action.executeCmd(startCmd)
##
# Set the "ban" command.
#
# @param value the command
def setActionBan(self, value):
self.__actionBan = value
logSys.info("Set actionBan = %s" % value)
##
# Get the "ban" command.
#
# @return the command
def getActionBan(self):
return self.__actionBan
def execActionBan(self, aInfo):
return self.__processCmd(self.__actionBan, aInfo)
##
# Set the "unban" command.
#
# @param value the command
def setActionUnban(self, value):
self.__actionUnban = value
logSys.info("Set actionUnban = %s" % value)
##
# Get the "unban" command.
#
# @return the command
def getActionUnban(self):
return self.__actionUnban
def execActionUnban(self, aInfo):
return self.__processCmd(self.__actionUnban, aInfo)
##
# Set the "check" command.
#
# @param value the command
def setActionCheck(self, value):
self.__actionCheck = value
logSys.info("Set actionCheck = %s" % value)
##
# Get the "check" command.
#
# @return the command
def getActionCheck(self):
return self.__actionCheck
##
# Set the "stop" command.
#
# @param value the command
def setActionStop(self, value):
self.__actionStop = value
logSys.info("Set actionStop = %s" % value)
##
# Get the "stop" command.
#
# @return the command
def getActionStop(self):
return self.__actionStop
def execActionStop(self):
stopCmd = Action.replaceTag(self.__actionStop, self.__cInfo)
return Action.executeCmd(stopCmd)
@staticmethod
def replaceTag(query, aInfo):
""" Replace tags in query
"""
string = query
for tag in aInfo:
string = string.replace('<' + tag + '>', str(aInfo[tag]))
# New line
string = string.replace("<br>", '\n')
return string
def __processCmd(self, cmd, aInfo = None):
""" Executes an OS command.
"""
if cmd == "":
logSys.debug("Nothing to do")
return True
checkCmd = Action.replaceTag(self.__actionCheck, self.__cInfo)
if not Action.executeCmd(checkCmd):
logSys.error("Invariant check failed. Trying to restore a sane" +
" environment")
stopCmd = Action.replaceTag(self.__actionStop, self.__cInfo)
Action.executeCmd(stopCmd)
startCmd = Action.replaceTag(self.__actionStart, self.__cInfo)
Action.executeCmd(startCmd)
if not Action.executeCmd(checkCmd):
logSys.fatal("Unable to restore environment")
return False
# Replace tags
if not aInfo == None:
realCmd = Action.replaceTag(cmd, aInfo)
else:
realCmd = cmd
# Replace static fields
realCmd = Action.replaceTag(realCmd, self.__cInfo)
return Action.executeCmd(realCmd)
@staticmethod
def executeCmd(realCmd):
logSys.debug(realCmd)
try:
# The following line gives deadlock with multiple jails
#retcode = call(realCmd, shell=True)
retcode = os.system(realCmd)
if retcode == 0:
logSys.debug("%s returned successfully" % realCmd)
return True
else:
logSys.error("%s returned %x" % (realCmd, retcode))
except OSError, e:
logSys.error("%s failed with %s" % (realCmd, e))
return False

182
server/actions.py Normal file
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@ -0,0 +1,182 @@
# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from banmanager import BanManager
from jailthread import JailThread
from action import Action
from mytime import MyTime
import time, logging
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.actions")
##
# Execute commands.
#
# This class reads the failures from the Jail queue and decide if an
# action has to be taken. A BanManager take care of the banned IP
# addresses.
class Actions(JailThread):
##
# Constructor.
#
# Initialize the filter object with default values.
# @param jail the jail object
def __init__(self, jail):
JailThread.__init__(self)
## The jail which contains this action.
self.jail = jail
self.__actions = list()
## The ban manager.
self.__banManager = BanManager()
def addAction(self, name):
action = Action(name)
self.__actions.append(action)
def delAction(self, name):
for action in self.__actions:
if action.getName() == name:
self.__actions.remove(action)
break
def getAction(self, name):
for action in self.__actions:
if action.getName() == name:
return action
raise KeyError
def getLastAction(self):
action = self.__actions.pop()
self.__actions.append(action)
return action
##
# Set the ban time.
#
# @param value the time
def setBanTime(self, value):
self.__banManager.setBanTime(value)
logSys.info("Set banTime = %s" % value)
##
# Get the ban time.
#
# @return the time
def getBanTime(self):
return self.__banManager.getBanTime()
##
# Main loop.
#
# This function is the main loop of the thread. It checks the Jail
# queue and executes commands when an IP address is banned.
# @return True when the thread exits nicely
def run(self):
for action in self.__actions:
action.execActionStart()
self.setActive(True)
while self.isActive():
if not self.getIdle():
#logSys.debug(self.jail.getName() + ": action")
ret = self.__checkBan()
if not ret:
self.__checkUnBan()
time.sleep(self.getSleepTime())
else:
time.sleep(self.getSleepTime())
self.__flushBan()
for action in self.__actions:
action.execActionStop()
logSys.debug(self.jail.getName() + ": action terminated")
return True
##
# Check for IP address to ban.
#
# Look in the Jail queue for FailTicket. If a ticket is available,
# it executes the "ban" command and add a ticket to the BanManager.
# @return True if an IP address get banned
def __checkBan(self):
ticket = self.jail.getFailTicket()
if ticket != False:
aInfo = dict()
bTicket = BanManager.createBanTicket(ticket)
aInfo["ip"] = bTicket.getIP()
aInfo["failures"] = bTicket.getAttempt()
logSys.warn("[%s] Ban %s" % (self.jail.getName(), aInfo["ip"]))
for action in self.__actions:
action.execActionBan(aInfo)
self.__banManager.addBanTicket(bTicket)
return True
return False
##
# Check for IP address to unban.
#
# Unban IP address which are outdated.
def __checkUnBan(self):
for ticket in self.__banManager.unBanList(MyTime.time()):
aInfo = dict()
aInfo["ip"] = ticket.getIP()
logSys.warn("[%s] Unban %s" % (self.jail.getName(), aInfo["ip"]))
for action in self.__actions:
action.execActionUnban(aInfo)
##
# Flush the ban list.
#
# Unban all IP address which are still in the banning list.
def __flushBan(self):
logSys.debug("Flush ban list")
for ticket in self.__banManager.flushBanList():
aInfo = dict()
aInfo["ip"] = ticket.getIP()
logSys.warn("[%s] Unban %s" % (self.jail.getName(), aInfo["ip"]))
for action in self.__actions:
action.execActionUnban(aInfo)
##
# Get the status of the filter.
#
# Get some informations about the filter state such as the total
# number of failures.
# @return a list with tuple
def status(self):
ret = [("Currently banned", self.__banManager.size()),
("Total banned", self.__banManager.getBanTotal())]
return ret

210
server/banmanager.py Normal file
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@ -0,0 +1,210 @@
# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from banticket import BanTicket
from threading import Lock
from mytime import MyTime
import logging
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.action")
##
# Banning Manager.
#
# Manage the banned IP addresses. Convert FailTicket to BanTicket.
# This class is mainly used by the Action class.
class BanManager:
##
# Constructor.
#
# Initialize members with default values.
def __init__(self):
## Mutex used to protect the ban list.
self.__lock = Lock()
## The ban list.
self.__banList = list()
## The amount of time an IP address gets banned.
self.__banTime = 600
## Total number of banned IP address
self.__banTotal = 0
##
# Set the ban time.
#
# Set the amount of time an IP address get banned.
# @param value the time
def setBanTime(self, value):
self.__lock.acquire()
self.__banTime = int(value)
self.__lock.release()
##
# Get the ban time.
#
# Get the amount of time an IP address get banned.
# @return the time
def getBanTime(self):
try:
self.__lock.acquire()
return self.__banTime
finally:
self.__lock.release()
##
# Set the total number of banned address.
#
# @param value total number
def setBanTotal(self, value):
self.__lock.acquire()
self.__banTotal = value
self.__lock.release()
##
# Get the total number of banned address.
#
# @return the total number
def getBanTotal(self):
try:
self.__lock.acquire()
return self.__banTotal
finally:
self.__lock.release()
##
# Create a ban ticket.
#
# Create a BanTicket from a FailTicket. The timestamp of the BanTicket
# is the current time. This is a static method.
# @param ticket the FailTicket
# @return a BanTicket
@staticmethod
def createBanTicket(ticket):
ip = ticket.getIP()
#lastTime = ticket.getTime()
lastTime = MyTime.time()
banTicket = BanTicket(ip, lastTime)
banTicket.setAttempt(ticket.getAttempt())
return banTicket
##
# Add a ban ticket.
#
# Add a BanTicket instance into the ban list.
# @param ticket the ticket
# @return True if the IP address is not in the ban list
def addBanTicket(self, ticket):
try:
self.__lock.acquire()
if not self.__inBanList(ticket):
self.__banList.append(ticket)
self.__banTotal += 1
return True
return False
finally:
self.__lock.release()
##
# Delete a ban ticket.
#
# Remove a BanTicket from the ban list.
# @param ticket the ticket
def __delBanTicket(self, ticket):
self.__banList.remove(ticket)
##
# Get the size of the ban list.
#
# @return the size
def size(self):
try:
self.__lock.acquire()
return len(self.__banList)
finally:
self.__lock.release()
##
# Check if a ticket is in the list.
#
# Check if a BanTicket with a given IP address is already in the
# ban list.
# @param ticket the ticket
# @return True if a ticket already exists
def __inBanList(self, ticket):
for i in self.__banList:
if ticket.getIP() == i.getIP():
return True
return False
##
# Get the list of IP address to unban.
#
# Return a list of BanTicket which need to be unbanned.
# @param time the time
# @return the list of ticket to unban
# @todo Check the delete operation
def unBanList(self, time):
try:
self.__lock.acquire()
uBList = list()
# Permanent banning
if self.__banTime < 0:
return uBList
for ticket in self.__banList:
if ticket.getTime() < time - self.__banTime:
uBList.append(ticket)
self.__delBanTicket(ticket)
return uBList
finally:
self.__lock.release()
##
# Flush the ban list.
#
# Get the ban list and initialize it with an empty one.
# @return the complete ban list
def flushBanList(self):
try:
self.__lock.acquire()
uBList = self.__banList
self.__banList = list()
return uBList
finally:
self.__lock.release()

50
server/banticket.py Normal file
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@ -0,0 +1,50 @@
# 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: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
from ticket import Ticket
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
##
# Ban Ticket.
#
# This class extends the Ticket class. It is mainly used by the BanManager.
class BanTicket(Ticket):
##
# Constructor.
#
# Call the Ticket (parent) constructor and initialize default
# values.
# @param ip the IP address
# @param time the ban time
def __init__(self, ip, time):
Ticket.__init__(self, ip, time)

145
server/datedetector.py Normal file
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# 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: 321 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 321 $"
__date__ = "$Date: 2006-09-04 21:19:58 +0200 (Mon, 04 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import time, logging
from datetemplate import DateTemplate
from datestrptime import DateStrptime
from datetai64n import DateTai64n
from dateepoch import DateEpoch
from threading import Lock
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.filter.datedetector")
class DateDetector:
def __init__(self):
self.__lock = Lock()
self.__templates = list()
self.__defTemplate = DateTemplate()
def addDefaultTemplate(self):
# standard
template = DateStrptime()
template.setName("Month Day Hour:Minute:Second")
template.setRegex("^\S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}")
template.setPattern("%b %d %H:%M:%S")
self.__templates.append(template)
# asctime
template = DateStrptime()
template.setName("Weekday Month Day Hour:Minute:Second Year")
template.setRegex("\S{3} \S{3} \d{2} \d{2}:\d{2}:\d{2} \d{4}")
template.setPattern("%a %b %d %H:%M:%S %Y")
self.__templates.append(template)
# simple date
template = DateStrptime()
template.setName("Year/Month/Day Hour:Minute:Second")
template.setRegex("\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2}")
template.setPattern("%Y/%m/%d %H:%M:%S")
self.__templates.append(template)
# Apache format [31/Oct/2006:09:22:55 -0000]
template = DateStrptime()
template.setName("Day/Month/Year:Hour:Minute:Second")
template.setRegex("\d{2}/\S{3}/\d{4}:\d{2}:\d{2}:\d{2}")
template.setPattern("%d/%b/%Y:%H:%M:%S")
self.__templates.append(template)
# TAI64N
template = DateTai64n()
template.setName("TAI64N")
self.__templates.append(template)
# Epoch
template = DateEpoch()
template.setName("Epoch")
self.__templates.append(template)
def getTemplates(self):
return self.__templates
def setDefaultRegex(self, value):
self.__defTemplate.setRegex(value)
def getDefaultRegex(self):
return self.__defTemplate.getRegex()
def setDefaultPattern(self, value):
self.__defTemplate.setPattern(value)
def getDefaultPattern(self):
return self.__defTemplate.getPattern()
def matchTime(self, line):
if self.__defTemplate.isValid():
return self.__defTemplate.matchDate(line)
else:
self.__lock.acquire()
for template in self.__templates:
match = template.matchDate(line)
if not match == None:
self.__lock.release()
return match
self.__lock.release()
return None
def getTime(self, line):
if self.__defTemplate.isValid():
try:
date = self.__defTemplate.getDate(line)
return date
except ValueError:
return None
else:
self.__lock.acquire()
for template in self.__templates:
try:
date = template.getDate(line)
if date == None:
continue
template.incHits()
self.__lock.release()
return date
except ValueError:
pass
self.__lock.release()
return None
def getUnixTime(self, line):
date = self.getTime(line)
if date == None:
return None
else:
return time.mktime(date)
##
# Sort the template lists using the hits score. This method is not called
# in this object and thus should be called from time to time.
def sortTemplate(self):
self.__lock.acquire()
logSys.debug("Sorting the template list")
self.__templates.sort(cmp = lambda x, y: cmp(x.getHits(), y.getHits()),
reverse=True)
self.__lock.release()

44
server/dateepoch.py Normal file
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@ -0,0 +1,44 @@
# 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: 321 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 321 $"
__date__ = "$Date: 2006-09-04 21:19:58 +0200 (Mon, 04 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import time
from datetemplate import DateTemplate
class DateEpoch(DateTemplate):
def __init__(self):
DateTemplate.__init__(self)
# We already know the format for TAI64N
self.setRegex("^\d{10}(\.\d{6})?")
def getDate(self, line):
date = None
dateMatch = self.matchDate(line)
if dateMatch:
# extract part of format which represents seconds since epoch
date = list(time.gmtime(float(dateMatch.group())))
return date

84
server/datestrptime.py Normal file
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@ -0,0 +1,84 @@
# -*- coding: utf8 -*-
# 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: 321 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 321 $"
__date__ = "$Date: 2006-09-04 21:19:58 +0200 (Mon, 04 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from mytime import MyTime
import time
from datetemplate import DateTemplate
##
# Use strptime() to parse a date. Our current locale is the 'C'
# one because we do not set the locale explicitly. This is POSIX
# standard.
class DateStrptime(DateTemplate):
TABLE = dict()
TABLE["Jan"] = []
TABLE["Feb"] = [u"Fév"]
TABLE["Mar"] = [u"Mär"]
TABLE["Apr"] = ["Avr"]
TABLE["May"] = ["Mai"]
TABLE["Jun"] = []
TABLE["Jul"] = []
TABLE["Aug"] = ["Aou"]
TABLE["Sep"] = []
TABLE["Oct"] = ["Okt"]
TABLE["Nov"] = []
TABLE["Dec"] = [u"Déc", "Dez"]
def __init__(self):
DateTemplate.__init__(self)
@staticmethod
def convertLocale(date):
for t in DateStrptime.TABLE:
for m in DateStrptime.TABLE[t]:
if date.find(m) >= 0:
return date.replace(m, t)
return date
def getDate(self, line):
date = None
dateMatch = self.matchDate(line)
if dateMatch:
try:
# Try first with 'C' locale
date = list(time.strptime(dateMatch.group(), self.getPattern()))
except ValueError:
# Try to convert date string to 'C' locale
conv = self.convertLocale(dateMatch.group())
date = list(time.strptime(conv, self.getPattern()))
if date[0] < 2000:
# There is probably no year field in the logs
date[0] = MyTime.gmtime()[0]
# Bug fix for #1241756
# If the date is greater than the current time, we suppose
# that the log is not from this year but from the year before
if time.mktime(date) > MyTime.time():
date[0] -= 1
return date

46
server/datetai64n.py Normal file
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@ -0,0 +1,46 @@
# 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: 321 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 321 $"
__date__ = "$Date: 2006-09-04 21:19:58 +0200 (Mon, 04 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import time
from datetemplate import DateTemplate
class DateTai64n(DateTemplate):
def __init__(self):
DateTemplate.__init__(self)
# We already know the format for TAI64N
self.setRegex("@[0-9a-f]{24}")
def getDate(self, line):
date = None
dateMatch = self.matchDate(line)
if dateMatch:
# extract part of format which represents seconds since epoch
value = dateMatch.group()
seconds_since_epoch = value[2:17]
date = list(time.gmtime(int(seconds_since_epoch, 16)))
return date

71
server/datetemplate.py Normal file
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@ -0,0 +1,71 @@
# 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: 321 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 321 $"
__date__ = "$Date: 2006-09-04 21:19:58 +0200 (Mon, 04 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import re
class DateTemplate:
def __init__(self):
self.__name = ""
self.__regex = ""
self.__cRegex = None
self.__pattern = ""
self.__hits = 0
def setName(self, name):
self.__name = name
def getName(self):
return self.__name
def setRegex(self, regex):
self.__regex = regex
self.__cRegex = re.compile(regex)
def getRegex(self):
return self.__regex
def setPattern(self, pattern):
self.__pattern = pattern
def getPattern(self):
return self.__pattern
def isValid(self):
return self.__regex != "" and self.__pattern != ""
def incHits(self):
self.__hits = self.__hits + 1
def getHits(self):
return self.__hits
def matchDate(self, line):
dateMatch = self.__cRegex.search(line)
return dateMatch
def getDate(self, line):
raise Exception("matchDate() is abstract")

53
server/faildata.py Normal file
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@ -0,0 +1,53 @@
# 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: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
class FailData:
def __init__(self):
self.__retry = 0
self.__lastTime = 0
def setRetry(self, value):
self.__retry = value
def getRetry(self):
return self.__retry
def inc(self):
self.__retry += 1
def setLastTime(self, value):
if value > self.__lastTime:
self.__lastTime = value
def getLastTime(self):
return self.__lastTime

132
server/failmanager.py Normal file
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@ -0,0 +1,132 @@
# 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: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from faildata import FailData
from failticket import FailTicket
from threading import Lock
import logging
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.filter")
class FailManager:
def __init__(self):
self.__lock = Lock()
self.__failList = dict()
self.__maxRetry = 3
self.__maxTime = 600
self.__failTotal = 0
def setFailTotal(self, value):
self.__lock.acquire()
self.__failTotal = value
self.__lock.release()
def getFailTotal(self):
try:
self.__lock.acquire()
return self.__failTotal
finally:
self.__lock.release()
def setMaxRetry(self, value):
self.__lock.acquire()
self.__maxRetry = value
self.__lock.release()
def getMaxRetry(self):
try:
self.__lock.acquire()
return self.__maxRetry
finally:
self.__lock.release()
def setMaxTime(self, value):
self.__lock.acquire()
self.__maxTime = value
self.__lock.release()
def getMaxTime(self):
try:
self.__lock.acquire()
return self.__maxTime
finally:
self.__lock.release()
def addFailure(self, ticket):
self.__lock.acquire()
ip = ticket.getIP()
unixTime = ticket.getTime()
if self.__failList.has_key(ip):
fData = self.__failList[ip]
fData.inc()
fData.setLastTime(unixTime)
else:
fData = FailData()
fData.inc()
fData.setLastTime(unixTime)
self.__failList[ip] = fData
self.__failTotal += 1
self.__lock.release()
def size(self):
try:
self.__lock.acquire()
return len(self.__failList)
finally:
self.__lock.release()
def cleanup(self, time):
self.__lock.acquire()
tmp = self.__failList.copy()
for item in tmp:
if tmp[item].getLastTime() < time - self.__maxTime:
self.__delFailure(item)
self.__lock.release()
def __delFailure(self, ip):
if self.__failList.has_key(ip):
del self.__failList[ip]
def toBan(self):
try:
self.__lock.acquire()
for ip in self.__failList:
data = self.__failList[ip]
if data.getRetry() >= self.__maxRetry:
self.__delFailure(ip)
# Create a FailTicket from BanData
failTicket = FailTicket(ip, data.getLastTime())
failTicket.setAttempt(data.getRetry())
return failTicket
raise FailManagerEmpty
finally:
self.__lock.release()
class FailManagerEmpty(Exception):
pass

21
utils/strings.py → server/failticket.py
View File

@ -16,25 +16,22 @@
# Author: Cyril Jaquier
#
# $Revision: 1.2 $
# $Revision: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.2 $"
__date__ = "$Date: 2005/11/20 17:07:47 $"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
from ticket import Ticket
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
def replaceTag(query, aInfo):
""" Replace tags in query
"""
string = query
for tag in aInfo:
string = string.replace('<'+tag+'>', `aInfo[tag]`)
# New line
string = string.replace('<br>', '\n')
return string
class FailTicket(Ticket):
def __init__(self, ip, time):
Ticket.__init__(self, ip, time)

528
server/filter.py Normal file
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@ -0,0 +1,528 @@
# 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: 440 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 440 $"
__date__ = "$Date: 2006-10-31 23:24:34 +0100 (Tue, 31 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from failmanager import FailManager
from failticket import FailTicket
from jailthread import JailThread
from datedetector import DateDetector
from mytime import MyTime
import logging, re, sre_constants
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.filter")
##
# Log reader class.
#
# This class reads a log file and detects login failures or anything else
# that matches a given regular expression. This class is instanciated by
# a Jail object.
class Filter(JailThread):
##
# Constructor.
#
# Initialize the filter object with default values.
# @param jail the jail object
def __init__(self, jail):
JailThread.__init__(self)
## The jail which contains this filter.
self.jail = jail
## The failures manager.
self.failManager = FailManager()
self.modified = False
## The log file handler.
self.__crtHandler = None
self.__crtFilename = None
## The log file path.
self.__logPath = []
## The regular expression matching the failure.
self.__failRegex = ''
self.__failRegexObj = None
## The amount of time to look back.
self.__findTime = 6000
## The ignore IP list.
self.__ignoreIpList = []
## The last position of the file.
self.__lastPos = dict()
## The last date in tht log file.
self.__lastDate = dict()
self.dateDetector = DateDetector()
self.dateDetector.addDefaultTemplate()
logSys.info("Created Filter")
##
# Add a log file path
#
# @param path log file path
def addLogPath(self, path):
self.getLogPath().append(path)
# Initialize default values
self.__lastDate[path] = 0
self.__lastPos[path] = 0
##
# Delete a log path
#
# @param path the log file to delete
def delLogPath(self, path):
self.getLogPath().remove(path)
del self.__lastDate[path]
del self.__lastPos[path]
##
# Get the log file path
#
# @return log file path
def getLogPath(self):
return self.__logPath
##
# Check whether path is already monitored.
#
# @param path The path
# @return True if the path is already monitored else False
def containsLogPath(self, path):
try:
self.getLogPath().index(path)
return True
except ValueError:
return False
##
# Set the regular expression which matches the time.
#
# @param value the regular expression
def setTimeRegex(self, value):
self.dateDetector.setDefaultRegex(value)
logSys.info("Set default regex = %s" % value)
##
# Get the regular expression which matches the time.
#
# @return the regular expression
def getTimeRegex(self):
return self.dateDetector.getDefaultRegex()
##
# Set the time pattern.
#
# @param value the time pattern
def setTimePattern(self, value):
self.dateDetector.setDefaultPattern(value)
logSys.info("Set default pattern = %s" % value)
##
# Get the time pattern.
#
# @return the time pattern
def getTimePattern(self):
return self.dateDetector.getDefaultPattern()
##
# Set the regular expression which matches the failure.
#
# The regular expression can also match any other pattern than failures
# and thus can be used for many purporse.
# @param value the regular expression
def setFailRegex(self, value):
try:
self.__failRegexObj = re.compile(value)
self.__failRegex = value
logSys.info("Set failregex = %s" % value)
except sre_constants.error:
logSys.error("Unable to compile regular expression " + value)
##
# Get the regular expression which matches the failure.
#
# @return the regular expression
def getFailRegex(self):
return self.__failRegex
##
# Set the time needed to find a failure.
#
# This value tells the filter how long it has to take failures into
# account.
# @param value the time
def setFindTime(self, value):
self.__findTime = value
logSys.info("Set findtime = %s" % value)
##
# Get the time needed to find a failure.
#
# @return the time
def getFindTime(self):
return self.__findTime
##
# Set the maximum retry value.
#
# @param value the retry value
def setMaxRetry(self, value):
self.failManager.setMaxRetry(value)
logSys.info("Set maxRetry = %s" % value)
##
# Get the maximum retry value.
#
# @return the retry value
def getMaxRetry(self):
return self.failManager.getMaxRetry()
##
# Set the maximum time a failure stays in the list.
#
# @param value the maximum time
def setMaxTime(self, value):
self.failManager.setMaxTime(value)
logSys.info("Set maxTime = %s" % value)
##
# Get the maximum time a failure stays in the list.
#
# @return the time value
def getMaxTime(self):
return self.failManager.getMaxTime()
##
# Main loop.
#
# This function is the main loop of the thread. It checks if the
# file has been modified and looks for failures.
# @return True when the thread exits nicely
def run(self):
raise Exception("run() is abstract")
##
# Add an IP/DNS to the ignore list.
#
# IP addresses in the ignore list are not taken into account
# when finding failures. CIDR mask and DNS are also accepted.
# @param ip IP address to ignore
def addIgnoreIP(self, ip):
logSys.debug("Add " + ip + " to ignore list")
self.__ignoreIpList.append(ip)
def delIgnoreIP(self, ip):
logSys.debug("Remove " + ip + " from ignore list")
self.__ignoreIpList.remove(ip)
def getIgnoreIP(self):
return self.__ignoreIpList
##
# Check if IP address/DNS is in the ignore list.
#
# Check if the given IP address matches an IP address/DNS or a CIDR
# mask in the ignore list.
# @param ip IP address
# @return True if IP address is in ignore list
def inIgnoreIPList(self, ip):
for i in self.__ignoreIpList:
# An empty string is always false
if i == "":
return False
s = i.split('/', 1)
# IP address without CIDR mask
if len(s) == 1:
s.insert(1, '32')
s[1] = long(s[1])
try:
a = DNSUtils.cidr(s[0], s[1])
b = DNSUtils.cidr(ip, s[1])
except Exception:
# Check if IP in DNS
ips = DNSUtils.dnsToIp(i)
if ip in ips:
return True
else:
return False
if a == b:
return True
return False
##
# Open the log file.
def __openLogFile(self, filename):
""" Opens the log file specified on init.
"""
try:
self.__crtFilename = filename
self.__crtHandler = open(filename)
logSys.debug("Opened " + filename)
return True
except OSError:
logSys.error("Unable to open " + filename)
except IOError:
logSys.error("Unable to read " + filename +
". Please check permissions")
return False
##
# Close the log file.
def __closeLogFile(self):
self.__crtFilename = None
self.__crtHandler.close()
##
# Set the file position.
#
# 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.
def __setFilePos(self):
line = self.__crtHandler.readline()
lastDate = self.__lastDate[self.__crtFilename]
lineDate = self.dateDetector.getUnixTime(line)
if lastDate < lineDate:
logSys.debug("Date " + `lastDate` + " is smaller than " + `lineDate`)
logSys.debug("Log rotation detected for " + self.__crtFilename)
self.__lastPos[self.__crtFilename] = 0
lastPos = self.__lastPos[self.__crtFilename]
logSys.debug("Setting file position to " + `lastPos` + " for " +
self.__crtFilename)
self.__crtHandler.seek(lastPos)
##
# Get the file position.
def __getFilePos(self):
return self.__crtHandler.tell()
##
# Gets all the failure in the log file.
#
# Gets all the failure in the log file which are newer than
# MyTime.time()-self.findTime. When a failure is detected, a FailTicket
# is created and is added to the FailManager.
def getFailures(self, filename):
ret = self.__openLogFile(filename)
if not ret:
logSys.error("Unable to get failures in " + filename)
return False
self.__setFilePos()
lastLine = None
for line in self.__crtHandler:
if not self.isActive():
# The jail has been stopped
break
try:
# Decode line to UTF-8
line = line.decode('utf-8')
except UnicodeDecodeError:
pass
if not self.dateDetector.matchTime(line):
# There is no valid time in this line
continue
lastLine = line
for element in self.findFailure(line):
ip = element[0]
unixTime = element[1]
if unixTime < MyTime.time()-self.__findTime:
break
if self.inIgnoreIPList(ip):
logSys.debug("Ignore "+ip)
continue
logSys.debug("Found "+ip)
self.failManager.addFailure(FailTicket(ip, unixTime))
self.__lastPos[filename] = self.__getFilePos()
if lastLine:
self.__lastDate[filename] = self.dateDetector.getUnixTime(lastLine)
self.__closeLogFile()
return True
##
# Finds the failure in a line.
#
# Uses the failregex pattern to find it and timeregex in order
# to find the logging time.
# @return a dict with IP and timestamp.
def findFailure(self, line):
failList = list()
if self.__failRegexObj == None:
logSys.error("No failregex is set")
else:
match = self.__failRegexObj.search(line)
if match:
date = self.dateDetector.getUnixTime(match.string)
if date == None:
logSys.debug("Found a match but no valid date/time found "
+ "for " + match.string + ". Please contact "
+ "the author in order to get support for "
+ "this format")
else:
try:
ipMatch = DNSUtils.textToIp(match.group("host"))
if ipMatch:
for ip in ipMatch:
failList.append([ip, date])
except IndexError:
logSys.error("There is no 'host' group in the rule. " +
"Please correct your configuration.")
return failList
##
# Get the status of the filter.
#
# Get some informations about the filter state such as the total
# number of failures.
# @return a list with tuple
def status(self):
ret = [("Currently failed", self.failManager.size()),
("Total failed", self.failManager.getFailTotal())]
return ret
##
# Utils class for DNS and IP handling.
#
# This class contains only static methods used to handle DNS and IP
# addresses.
import socket, struct
class DNSUtils:
DNS_CRE = re.compile("(?:(?:\w|-)+\.){2,}\w+")
IP_CRE = re.compile("(?:\d{1,3}\.){3}\d{1,3}")
@staticmethod
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()
@staticmethod
def textToDns(text):
""" Search for possible DNS in an arbitrary text.
Thanks to Tom Pike.
"""
match = DNSUtils.DNS_CRE.match(text)
if match:
return match
else:
return None
@staticmethod
def searchIP(text):
""" Search if an IP address if directly available and return
it.
"""
match = DNSUtils.IP_CRE.match(text)
if match:
return match
else:
return None
@staticmethod
def isValidIP(string):
""" Return true if str is a valid IP
"""
s = string.split('/', 1)
try:
socket.inet_aton(s[0])
return True
except socket.error:
return False
@staticmethod
def textToIp(text):
""" Return the IP of DNS found in a given text.
"""
ipList = list()
# Search for plain IP
plainIP = DNSUtils.searchIP(text)
if not plainIP == None:
plainIPStr = plainIP.group(0)
if DNSUtils.isValidIP(plainIPStr):
ipList.append(plainIPStr)
if not ipList:
# Try to get IP from possible DNS
dns = DNSUtils.textToDns(text)
if not dns == None:
ip = DNSUtils.dnsToIp(dns.group(0))
for e in ip:
ipList.append(e)
return ipList
@staticmethod
def cidr(i, n):
""" Convert an IP address string with a CIDR mask into a 32-bit
integer.
"""
# 32-bit IPv4 address mask
MASK = 0xFFFFFFFFL
return ~(MASK >> n) & MASK & DNSUtils.addr2bin(i)
@staticmethod
def addr2bin(string):
""" Convert a string IPv4 address into an unsigned integer.
"""
return struct.unpack("!L", socket.inet_aton(string))[0]
@staticmethod
def bin2addr(addr):
""" Convert a numeric IPv4 address into string n.n.n.n form.
"""
return socket.inet_ntoa(struct.pack("!L", addr))

120
server/filtergamin.py Normal file
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@ -0,0 +1,120 @@
# 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: 418 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 418 $"
__date__ = "$Date: 2006-10-19 00:30:57 +0200 (Thu, 19 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from failmanager import FailManagerEmpty
from filter import Filter
from mytime import MyTime
import time, logging, gamin
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.filter")
##
# Log reader class.
#
# This class reads a log file and detects login failures or anything else
# that matches a given regular expression. This class is instanciated by
# a Jail object.
class FilterGamin(Filter):
##
# Constructor.
#
# Initialize the filter object with default values.
# @param jail the jail object
def __init__(self, jail):
Filter.__init__(self, jail)
# Gamin monitor
self.monitor = gamin.WatchMonitor()
logSys.info("Created FilterGamin")
def callback(self, path, event):
logSys.debug("Got event: " + `event` + " for " + path)
if event in (gamin.GAMCreated, gamin.GAMChanged, gamin.GAMExists):
logSys.debug("File changed: " + path)
self.getFailures(path)
self.modified = True
##
# Add a log file path
#
# @param path log file path
def addLogPath(self, path):
if self.containsLogPath(path):
logSys.error(path + " already exists")
else:
self.monitor.watch_file(path, self.callback)
Filter.addLogPath(self, path)
logSys.info("Added logfile = %s" % path)
##
# Delete a log path
#
# @param path the log file to delete
def delLogPath(self, path):
if not self.containsLogPath(path):
logSys.error(path + " is not monitored")
else:
self.monitor.stop_watch(path)
Filter.delLogPath(self, path)
logSys.info("Removed logfile = %s" % path)
##
# Main loop.
#
# This function is the main loop of the thread. It checks if the
# file has been modified and looks for failures.
# @return True when the thread exits nicely
def run(self):
self.setActive(True)
while self.isActive():
if not self.getIdle():
# We cannot block here because we want to be able to
# exit.
if self.monitor.event_pending():
self.monitor.handle_events()
if self.modified:
try:
ticket = self.failManager.toBan()
self.jail.putFailTicket(ticket)
except FailManagerEmpty:
self.failManager.cleanup(MyTime.time())
self.dateDetector.sortTemplate()
self.modified = False
time.sleep(self.getSleepTime())
else:
time.sleep(self.getSleepTime())
logSys.debug(self.jail.getName() + ": filter terminated")
return True

140
server/filterpoll.py Normal file
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# 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: 354 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 354 $"
__date__ = "$Date: 2006-09-13 23:31:22 +0200 (Wed, 13 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from failmanager import FailManagerEmpty
from filter import Filter
from mytime import MyTime
import time, logging, os
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.filter")
##
# Log reader class.
#
# This class reads a log file and detects login failures or anything else
# that matches a given regular expression. This class is instanciated by
# a Jail object.
class FilterPoll(Filter):
##
# Constructor.
#
# Initialize the filter object with default values.
# @param jail the jail object
def __init__(self, jail):
Filter.__init__(self, jail)
## The time of the last modification of the file.
self.__lastModTime = dict()
self.__file404Cnt = dict()
logSys.info("Created FilterPoll")
##
# Add a log file path
#
# @param path log file path
def addLogPath(self, path):
if self.containsLogPath(path):
logSys.error(path + " already exists")
else:
self.__lastModTime[path] = 0
self.__file404Cnt[path] = 0
Filter.addLogPath(self, path)
logSys.info("Added logfile = %s" % path)
##
# Delete a log path
#
# @param path the log file to delete
def delLogPath(self, path):
if not self.containsLogPath(path):
logSys.error(path + " is not monitored")
else:
del self.__lastModTime[path]
del self.__file404Cnt[path]
Filter.delLogPath(self, path)
logSys.info("Removed logfile = %s" % path)
##
# Main loop.
#
# This function is the main loop of the thread. It checks if the
# file has been modified and looks for failures.
# @return True when the thread exits nicely
def run(self):
self.setActive(True)
while self.isActive():
if not self.getIdle():
# Get file modification
for f in self.getLogPath():
if self.isModified(f):
self.getFailures(f)
self.modified = True
if self.modified:
try:
ticket = self.failManager.toBan()
self.jail.putFailTicket(ticket)
except FailManagerEmpty:
self.failManager.cleanup(MyTime.time())
self.dateDetector.sortTemplate()
self.modified = False
time.sleep(self.getSleepTime())
else:
time.sleep(self.getSleepTime())
logSys.debug(self.jail.getName() + ": filter terminated")
return True
##
# Checks if the log file has been modified.
#
# Checks if the log file has been modified using os.stat().
# @return True if log file has been modified
def isModified(self, filename):
try:
logStats = os.stat(filename)
self.__file404Cnt[filename] = 0
if self.__lastModTime[filename] == logStats.st_mtime:
return False
else:
logSys.debug(filename + " has been modified")
self.__lastModTime[filename] = logStats.st_mtime
return True
except OSError:
logSys.error("Unable to get stat on " + filename)
self.__file404Cnt[filename] = self.__file404Cnt[filename] + 1
if self.__file404Cnt[filename] > 2:
logSys.warn("Too much read error. Set the jail idle")
self.jail.setIdle(True)
self.__file404Cnt[filename] = 0
return False

149
server/jail.py Normal file
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@ -0,0 +1,149 @@
# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import Queue, logging
from actions import Actions
from threading import Lock
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.jail")
class Jail:
def __init__(self, name, backend = "auto"):
self.__lock = Lock()
self.__name = name
self.__queue = Queue.Queue()
self.__filter = None
if backend == "polling":
self.__initPoller()
else:
try:
self.__initGamin()
except ImportError:
self.__initPoller()
self.__action = Actions(self)
def __initPoller(self):
logSys.info("Using poller")
from filterpoll import FilterPoll
self.__filter = FilterPoll(self)
def __initGamin(self):
# Try to import gamin
import gamin
logSys.info("Using Gamin")
from filtergamin import FilterGamin
self.__filter = FilterGamin(self)
def setName(self, name):
self.__lock.acquire()
self.__name = name
self.__lock.release()
def getName(self):
try:
self.__lock.acquire()
return self.__name
finally:
self.__lock.release()
def getFilter(self):
try:
self.__lock.acquire()
return self.__filter
finally:
self.__lock.release()
def getAction(self):
try:
self.__lock.acquire()
return self.__action
finally:
self.__lock.release()
def putFailTicket(self, ticket):
self.__lock.acquire()
self.__queue.put(ticket)
self.__lock.release()
def getFailTicket(self):
try:
self.__lock.acquire()
try:
return self.__queue.get(False)
except Queue.Empty:
return False
finally:
self.__lock.release()
def start(self):
self.__lock.acquire()
self.__filter.start()
self.__action.start()
self.__lock.release()
def stop(self):
self.__lock.acquire()
self.__filter.stop()
self.__action.stop()
self.__lock.release()
self.__filter.join()
self.__action.join()
def isActive(self):
try:
self.__lock.acquire()
isActive0 = self.__filter.isActive()
isActive1 = self.__action.isActive()
return isActive0 or isActive1
finally:
self.__lock.release()
def setIdle(self, value):
self.__lock.acquire()
self.__filter.setIdle(value)
self.__action.setIdle(value)
self.__lock.release()
def getIdle(self):
try:
self.__lock.acquire()
return self.__filter.getIdle() or self.__action.getIdle()
finally:
self.__lock.release()
def getStatus(self):
try:
self.__lock.acquire()
fStatus = self.__filter.status()
aStatus = self.__action.status()
ret = [("filter", fStatus),
("action", aStatus)]
return ret
finally:
self.__lock.release()

107
server/jails.py Normal file
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@ -0,0 +1,107 @@
# 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: 354 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 354 $"
__date__ = "$Date: 2006-09-13 23:31:22 +0200 (Wed, 13 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from jail import Jail
from threading import Lock
class Jails:
def __init__(self):
self.__lock = Lock()
self.__jails = dict()
def add(self, name, backend):
self.__lock.acquire()
if self.__jails.has_key(name):
self.__lock.release()
raise DuplicateJailException(name)
else:
self.__jails[name] = Jail(name, backend)
self.__lock.release()
def remove(self, name):
self.__lock.acquire()
if self.__jails.has_key(name):
del self.__jails[name]
self.__lock.release()
else:
self.__lock.release()
raise UnknownJailException(name)
def get(self, name):
try:
self.__lock.acquire()
if self.__jails.has_key(name):
jail = self.__jails[name]
return jail
else:
raise UnknownJailException(name)
finally:
self.__lock.release()
def getAction(self, name):
try:
self.__lock.acquire()
if self.__jails.has_key(name):
action = self.__jails[name].getAction()
return action
else:
raise UnknownJailException(name)
finally:
self.__lock.release()
def getFilter(self, name):
try:
self.__lock.acquire()
if self.__jails.has_key(name):
action = self.__jails[name].getFilter()
return action
else:
raise UnknownJailException(name)
finally:
self.__lock.release()
def getAll(self):
try:
self.__lock.acquire()
return self.__jails.copy()
finally:
self.__lock.release()
def size(self):
try:
self.__lock.acquire()
return len(self.__jails)
finally:
self.__lock.release()
class DuplicateJailException(Exception):
pass
class UnknownJailException(Exception):
pass

118
server/jailthread.py Normal file
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@ -0,0 +1,118 @@
# 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: 433 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 433 $"
__date__ = "$Date: 2006-10-24 21:40:51 +0200 (Tue, 24 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from threading import Thread
import logging
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.server")
class JailThread(Thread):
##
# Constructor.
#
# Initialize the filter object with default values.
# @param jail the jail object
def __init__(self):
Thread.__init__(self)
## Control the state of the thread.
self.__isRunning = False
## Control the idle state of the thread.
self.__isIdle = False
## The time the thread sleeps in the loop.
self.__sleepTime = 1
##
# Set the time that the thread sleeps.
#
# This value could also be called "polling time". A value of 1 is a
# good one. This unit is "second"
# @param value the polling time (second)
def setSleepTime(self, value):
self.__sleepTime = value
logSys.info("Set sleeptime = " + value)
##
# Get the time that the thread sleeps.
#
# @return the polling time
def getSleepTime(self):
return self.__sleepTime
##
# Set the idle flag.
#
# This flag stops the check of the log file.
# @param value boolean value
def setIdle(self, value):
self.__isIdle = value
##
# Get the idle state.
#
# @return the idle state
def getIdle(self):
return self.__isIdle
##
# Stop the thread.
#
# Stop the exection of the thread and quit.
def stop(self):
self.__isRunning = False
##
# Set the isRunning flag.
#
# @param value True if the thread is running
def setActive(self, value):
self.__isRunning = value
##
# Check if the thread is active.
#
# Check if the filter thread is running.
# @return True if the thread is running
def isActive(self):
return self.__isRunning
##
# Get the status of the thread
#
# Get some informations about the thread. This is an abstract method.
# @return a list with tuple
def status(self):
pass

33
confreader/__init__.py → server/mytime.py
View File

@ -16,10 +16,35 @@
# Author: Cyril Jaquier
#
# $Revision: 1.1 $
# $Revision: 321 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.1 $"
__date__ = "$Date: 2005/02/18 13:26:41 $"
__version__ = "$Revision: 321 $"
__date__ = "$Date: 2006-09-04 21:19:58 +0200 (Mon, 04 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
__license__ = "GPL"
import time
class MyTime:
myTime = None
@staticmethod
def setTime(t):
MyTime.myTime = t
@staticmethod
def time():
if MyTime.myTime == None:
return time.time()
else:
return MyTime.myTime
@staticmethod
def gmtime():
if MyTime.myTime == None:
return time.gmtime()
else:
return time.gmtime(MyTime.myTime)

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# 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: 436 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 436 $"
__date__ = "$Date: 2006-10-30 23:47:30 +0100 (Mon, 30 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from jails import Jails
from transmitter import Transmitter
from ssocket import SSocket
from ssocket import SSocketErrorException
import logging, logging.handlers, sys, os, signal
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.server")
class Server:
def __init__(self, daemon = False):
self.__jails = Jails()
self.__daemon = daemon
self.__transm = Transmitter(self)
self.__socket = SSocket(self.__transm)
self.__logLevel = 3
self.__logTarget = "STDOUT"
# Set logging level
self.setLogLevel(self.__logLevel)
self.setLogTarget(self.__logTarget)
def __sigTERMhandler(self, signum, frame):
logSys.debug("Caught signal %d. Exiting" % signum)
self.quit()
def start(self, sock, force = False):
logSys.info("Starting Fail2ban")
# Install signal handlers
signal.signal(signal.SIGTERM, self.__sigTERMhandler)
signal.signal(signal.SIGINT, self.__sigTERMhandler)
# First set the mask to only allow access to owner
os.umask(0077)
if self.__daemon:
ret = self.__createDaemon()
if ret:
logSys.info("Daemon started")
else:
logSys.error("Could not create daemon")
raise ServerInitializationError("Could not create daemon")
# Start the communication
logSys.debug("Starting communication")
try:
self.__socket.initialize(sock, force)
self.__socket.start()
# Workaround (???) for join() bug.
# https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1167930&group_id=5470
while self.__socket.isAlive():
self.__socket.join(1)
except SSocketErrorException:
logSys.error("Could not start server")
logSys.info("Exiting Fail2ban")
def quit(self):
self.stopAllJail()
# Stop communication
self.__socket.stop()
def addJail(self, name, backend):
self.__jails.add(name, backend)
def delJail(self, name):
self.__jails.remove(name)
def startJail(self, name):
if not self.isActive(name):
self.__jails.get(name).start()
def stopJail(self, name):
if self.isActive(name):
self.__jails.get(name).stop()
self.delJail(name)
def stopAllJail(self):
for jail in self.__jails.getAll():
self.stopJail(jail)
def isActive(self, name):
return self.__jails.get(name).isActive()
def setIdleJail(self, name, value):
self.__jails.get(name).setIdle(value)
return True
def getIdleJail(self, name):
return self.__jails.get(name).getIdle()
# Filter
def addIgnoreIP(self, name, ip):
self.__jails.getFilter(name).addIgnoreIP(ip)
def delIgnoreIP(self, name, ip):
self.__jails.getFilter(name).delIgnoreIP(ip)
def getIgnoreIP(self, name):
return self.__jails.getFilter(name).getIgnoreIP()
def addLogPath(self, name, fileName):
self.__jails.getFilter(name).addLogPath(fileName)
def delLogPath(self, name, fileName):
self.__jails.getFilter(name).delLogPath(fileName)
def getLogPath(self, name):
return self.__jails.getFilter(name).getLogPath()
def setTimeRegex(self, name, value):
self.__jails.getFilter(name).setTimeRegex(value)
def getTimeRegex(self, name):
return self.__jails.getFilter(name).getTimeRegex()
def setTimePattern(self, name, value):
self.__jails.getFilter(name).setTimePattern(value)
def getTimePattern(self, name):
return self.__jails.getFilter(name).getTimePattern()
def setFindTime(self, name, value):
self.__jails.getFilter(name).setFindTime(value)
def getFindTime(self, name):
return self.__jails.getFilter(name).getFindTime()
def setFailRegex(self, name, value):
self.__jails.getFilter(name).setFailRegex(value)
def getFailRegex(self, name):
return self.__jails.getFilter(name).getFailRegex()
def setMaxRetry(self, name, value):
self.__jails.getFilter(name).setMaxRetry(value)
def getMaxRetry(self, name):
return self.__jails.getFilter(name).getMaxRetry()
def setMaxTime(self, name, value):
self.__jails.getFilter(name).setMaxTime(value)
def getMaxTime(self, name):
return self.__jails.getFilter(name).getMaxTime()
# Action
def addAction(self, name, value):
self.__jails.getAction(name).addAction(value)
def getLastAction(self, name):
return self.__jails.getAction(name).getLastAction()
def delAction(self, name, value):
self.__jails.getAction(name).delAction(value)
def setCInfo(self, name, action, key, value):
self.__jails.getAction(name).getAction(action).setCInfo(key, value)
def getCInfo(self, name, action, key):
return self.__jails.getAction(name).getAction(action).getCInfo(key)
def delCInfo(self, name, action, key):
self.__jails.getAction(name).getAction(action).delCInfo(key)
def setBanTime(self, name, value):
self.__jails.getAction(name).setBanTime(value)
def getBanTime(self, name):
return self.__jails.getAction(name).getBanTime()
def setActionStart(self, name, action, value):
self.__jails.getAction(name).getAction(action).setActionStart(value)
def getActionStart(self, name, action):
return self.__jails.getAction(name).getAction(action).getActionStart()
def setActionStop(self, name, action, value):
self.__jails.getAction(name).getAction(action).setActionStop(value)
def getActionStop(self, name, action):
return self.__jails.getAction(name).getAction(action).getActionStop()
def setActionCheck(self, name, action, value):
self.__jails.getAction(name).getAction(action).setActionCheck(value)
def getActionCheck(self, name, action):
return self.__jails.getAction(name).getAction(action).getActionCheck()
def setActionBan(self, name, action, value):
self.__jails.getAction(name).getAction(action).setActionBan(value)
def getActionBan(self, name, action):
return self.__jails.getAction(name).getAction(action).getActionBan()
def setActionUnban(self, name, action, value):
self.__jails.getAction(name).getAction(action).setActionUnban(value)
def getActionUnban(self, name, action):
return self.__jails.getAction(name).getAction(action).getActionUnban()
# Status
def status(self):
jailList = ''
for jail in self.__jails.getAll():
jailList += jail + ', '
length = len(jailList)
if not length == 0:
jailList = jailList[:length-2]
ret = [("Number of jail", self.__jails.size()),
("Jail list", jailList)]
return ret
def statusJail(self, name):
return self.__jails.get(name).getStatus()
# Logging
##
# Set the logging level.
#
# Incrementing the value gives more messages.
# 0 = FATAL
# 1 = ERROR
# 2 = WARNING
# 3 = INFO
# 4 = DEBUG
# @param value the level
def setLogLevel(self, value):
self.__logLevel = value
logLevel = logging.DEBUG
if value == 0:
logLevel = logging.FATAL
elif value == 1:
logLevel = logging.ERROR
elif value == 2:
logLevel = logging.WARNING
elif value == 3:
logLevel = logging.INFO
logging.getLogger("fail2ban").setLevel(logLevel)
##
# Get the logging level.
#
# @see setLogLevel
# @return the log level
def getLogLevel(self):
return self.__logLevel
def setLogTarget(self, target):
# Remove previous handler
logging.getLogger("fail2ban").handlers = []
self.__logTarget = target
if target == "SYSLOG":
hdlr = logging.handlers.SysLogHandler()
elif target == "STDOUT":
hdlr = logging.StreamHandler(sys.stdout)
elif target == "STDERR":
hdlr = logging.StreamHandler(sys.stderr)
else:
# Target should be a file
try:
open(target, "a")
hdlr = logging.FileHandler(target)
except IOError:
logSys.error("Unable to log to " + target)
return False
# set a format which is simpler for console use
formatter = logging.Formatter("%(asctime)s %(name)-16s: %(levelname)-6s %(message)s")
# tell the handler to use this format
hdlr.setFormatter(formatter)
logging.getLogger("fail2ban").addHandler(hdlr)
return True
def getLogTarget(self):
return self.__logTarget
def __createDaemon(self):
""" 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("/")
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
class ServerInitializationError(Exception):
pass

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# 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: 443 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 443 $"
__date__ = "$Date: 2006-11-01 00:36:59 +0100 (Wed, 01 Nov 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from threading import Thread
# cPickle generates an exception with Python 2.5
#from cPickle import dumps, loads, HIGHEST_PROTOCOL
from pickle import dumps, loads, HIGHEST_PROTOCOL
import socket, logging, os, os.path
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.comm")
class SSocket(Thread):
END_STRING = "<F2B_END_COMMAND>"
def __init__(self, transmitter):
Thread.__init__(self)
self.__transmit = transmitter
self.__isRunning = False
self.__socket = "/tmp/fail2ban.sock"
self.__ssock = None
logSys.debug("Created SSocket")
def initialize(self, sock = "/tmp/fail2ban.sock", force = False):
self.__socket = sock
# Remove socket
if os.path.exists(sock):
logSys.error("Fail2ban seems to be already running")
if force:
logSys.warn("Forcing execution of the server")
os.remove(sock)
else:
raise SSocketErrorException("Server already running")
# Create an INET, STREAMing socket
#self.__ssock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.__ssock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
#self.__ssock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
#self.__ssock.setblocking(False)
# Do not use a blocking socket as there is problem at shutdown.
# Use a timeout instead. Daemon exits at most 'timeout' seconds
# after the command.
self.__ssock.settimeout(1)
# Bind the socket to a public host and a well-known port
#self.__ssock.bind(("localhost", 2222))
self.__ssock.bind(sock)
# Become a server socket
self.__ssock.listen(5)
def run(self):
self.__isRunning = True
while self.__isRunning:
try:
(csock, address) = self.__ssock.accept()
thread = SocketWorker(csock, self.__transmit)
thread.start()
except socket.timeout:
# Do nothing here
pass
self.__ssock.close()
# Remove socket
if os.path.exists(self.__socket):
logSys.debug("Removed socket file " + self.__socket)
os.remove(self.__socket)
logSys.debug("Socket shutdown")
return True
##
# Stop the thread.
#
# Set the isRunning flag to False.
# @bug It seems to be some concurrency problem with this flag
def stop(self):
self.__isRunning = False
class SocketWorker(Thread):
def __init__(self, csock, transmitter):
Thread.__init__(self)
self.__csock = csock
self.__transmit = transmitter
def run(self):
logSys.debug("Starting new thread to handle the request")
msg = self.__receive(self.__csock)
msg = self.__transmit.proceed(msg)
self.__send(self.__csock, msg)
self.__csock.close()
logSys.debug("Connection closed")
@staticmethod
def __send(sock, msg):
obj = dumps(msg, HIGHEST_PROTOCOL)
sock.send(obj + SSocket.END_STRING)
@staticmethod
def __receive(sock):
msg = ''
while msg.rfind(SSocket.END_STRING) == -1:
chunk = sock.recv(6)
if chunk == '':
raise RuntimeError, "socket connection broken"
msg = msg + chunk
return loads(msg)
class SSocketErrorException(Exception):
pass

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# 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: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
class Ticket:
def __init__(self, ip, time):
self.__ip = ip
self.__time = time
self.__attempt = 0
def setIP(self, value):
self.__ip = value
def getIP(self):
return self.__ip
def setTime(self, value):
self.__time = value
def getTime(self):
return self.__time
def setAttempt(self, value):
self.__attempt = value
def getAttempt(self):
return self.__attempt

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# 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: 409 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 409 $"
__date__ = "$Date: 2006-10-16 21:42:50 +0200 (Mon, 16 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
from threading import Lock
import logging, time
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban.comm")
class Transmitter:
def __init__(self, server):
self.__lock = Lock()
self.__server = server
def proceed(self, action):
# Deserialize object
try:
self.__lock.acquire()
logSys.debug("Action: " + `action`)
try:
ret = self.__actionHandler(action)
ack = 0, ret
except Exception, e:
logSys.warn("Invalid command: " + `action`)
ack = 1, e
return ack
finally:
self.__lock.release()
##
# Handle an action.
#
#
def __actionHandler(self, action):
if action[0] == "ping":
return "pong"
elif action[0] == "add":
name = action[1]
if name == "all":
raise Exception("Reserved name")
try:
backend = action[2]
except IndexError:
backend = "auto"
self.__server.addJail(name, backend)
return name
elif action[0] == "start":
name = action[1]
self.__server.startJail(name)
return None
elif action[0] == "stop":
if len(action) == 1:
self.__server.quit()
elif action[1] == "all":
self.__server.stopAllJail()
else:
name = action[1]
self.__server.stopJail(name)
return None
elif action[0] == "sleep":
value = action[1]
time.sleep(int(value))
return None
elif action[0] == "set":
return self.__actionSet(action[1:])
elif action[0] == "get":
return self.__actionGet(action[1:])
elif action[0] == "status":
return self.status(action[1:])
raise Exception("Invalid command")
def __actionSet(self, action):
name = action[0]
# Logging
if name == "loglevel":
value = int(action[1])
self.__server.setLogLevel(value)
return self.__server.getLogLevel()
elif name == "logtarget":
value = action[1]
self.__server.setLogTarget(value)
return self.__server.getLogTarget()
# Jail
elif action[1] == "idle":
if action[2] == "on":
self.__server.setIdleJail(name, True)
elif action[2] == "off":
self.__server.setIdleJail(name, False)
return self.__server.getIdleJail(name)
# Filter
elif action[1] == "addignoreip":
value = action[2]
self.__server.addIgnoreIP(name, value)
return self.__server.getIgnoreIP(name)
elif action[1] == "delignoreip":
value = action[2]
self.__server.delIgnoreIP(name, value)
return self.__server.getIgnoreIP(name)
elif action[1] == "addlogpath":
value = action[2:]
for path in value:
self.__server.addLogPath(name, path)
return self.__server.getLogPath(name)
elif action[1] == "dellogpath":
value = action[2]
self.__server.delLogPath(name, value)
return self.__server.getLogPath(name)
elif action[1] == "timeregex":
value = action[2]
self.__server.setTimeRegex(name, value)
return self.__server.getTimeRegex(name)
elif action[1] == "timepattern":
value = action[2]
self.__server.setTimePattern(name, value)
return self.__server.getTimePattern(name)
elif action[1] == "failregex":
value = action[2]
self.__server.setFailRegex(name, value)
return self.__server.getFailRegex(name)
elif action[1] == "maxtime":
value = action[2]
self.__server.setMaxTime(name, int(value))
return self.__server.getMaxTime(name)
elif action[1] == "findtime":
value = action[2]
self.__server.setFindTime(name, int(value))
return self.__server.getFindTime(name)
elif action[1] == "maxretry":
value = action[2]
self.__server.setMaxRetry(name, int(value))
return self.__server.getMaxRetry(name)
# Action
elif action[1] == "bantime":
value = action[2]
self.__server.setBanTime(name, int(value))
return self.__server.getBanTime(name)
elif action[1] == "addaction":
value = action[2]
self.__server.addAction(name, value)
return self.__server.getLastAction(name).getName()
elif action[1] == "delaction":
self.__server.delAction(name, value)
return None
elif action[1] == "setcinfo":
act = action[2]
key = action[3]
value = action[4]
self.__server.setCInfo(name, act, key, value)
return self.__server.getCInfo(name, act, key)
elif action[1] == "delcinfo":
act = action[2]
key = action[3]
self.__server.delCInfo(name, act, key)
return None
elif action[1] == "actionstart":
act = action[2]
value = action[3]
self.__server.setActionStart(name, act, value)
return self.__server.getActionStart(name, act)
elif action[1] == "actionstop":
act = action[2]
value = action[3]
self.__server.setActionStop(name, act, value)
return self.__server.getActionStop(name, act)
elif action[1] == "actioncheck":
act = action[2]
value = action[3]
self.__server.setActionCheck(name, act, value)
return self.__server.getActionCheck(name, act)
elif action[1] == "actionban":
act = action[2]
value = action[3]
self.__server.setActionBan(name, act, value)
return self.__server.getActionBan(name, act)
elif action[1] == "actionunban":
act = action[2]
value = action[3]
self.__server.setActionUnban(name, act, value)
return self.__server.getActionUnban(name, act)
raise Exception("Invalid command (no set action or not yet implemented)")
def __actionGet(self, action):
name = action[0]
# Logging
if name == "loglevel":
return self.__server.getLogLevel()
elif name == "logtarget":
return self.__server.getLogTarget()
# Filter
elif action[1] == "logpath":
return self.__server.getLogPath(name)
elif action[1] == "ignoreip":
return self.__server.getIgnoreIP(name)
elif action[1] == "timeregex":
return self.__server.getTimeRegex(name)
elif action[1] == "timepattern":
return self.__server.getTimePattern(name)
elif action[1] == "failregex":
return self.__server.getFailRegex(name)
elif action[1] == "maxtime":
return self.__server.getMaxTime(name)
elif action[1] == "findtime":
return self.__server.getFindTime(name)
elif action[1] == "maxretry":
return self.__server.getMaxRetry(name)
# Action
elif action[1] == "bantime":
return self.__server.getBanTime(name)
elif action[1] == "addaction":
return self.__server.getLastAction(name).getName()
elif action[1] == "actionstart":
act = action[2]
return self.__server.getActionStart(name, act)
elif action[1] == "actionstop":
act = action[2]
return self.__server.getActionStop(name, act)
elif action[1] == "actioncheck":
act = action[2]
return self.__server.getActionCheck(name, act)
elif action[1] == "actionban":
act = action[2]
return self.__server.getActionBan(name, act)
elif action[1] == "actionunban":
act = action[2]
return self.__server.getActionUnban(name, act)
raise Exception("Invalid command (no get action or not yet implemented)")
def status(self, action):
if len(action) == 0:
return self.__server.status()
else:
name = action[0]
return self.__server.statusJail(name)
raise Exception("Invalid command (no status)")

55
setup.py
View File

@ -18,11 +18,11 @@
# Author: Cyril Jaquier
#
# $Revision: 1.6 $
# $Revision: 413 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.6 $"
__date__ = "$Date: 2006/01/22 11:08:42 $"
__version__ = "$Revision: 413 $"
__date__ = "$Date: 2006-10-17 23:13:11 +0200 (Tue, 17 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
@ -30,6 +30,7 @@ from distutils.core import setup
from version import version
from os.path import isfile, join
from sys import exit, argv
from glob import glob
longdesc = '''
Fail2Ban scans log files like /var/log/pwdfail or
@ -48,17 +49,49 @@ setup(
url = "http://fail2ban.sourceforge.net",
license = "GPL",
platforms = "Posix",
scripts = ['fail2ban'],
py_modules = ['fail2ban', 'version'],
packages = ['firewall', 'logreader', 'confreader', 'utils']
scripts = [
'fail2ban-client',
'fail2ban-server',
'fail2ban-regex'
],
py_modules = ['version'],
packages = [
'client',
'server'
],
data_files = [
('/etc/fail2ban',
glob("config/*.conf")
),
('/etc/fail2ban/filter.d',
glob("config/filter.d/*.conf")
),
('/etc/fail2ban/action.d',
glob("config/action.d/*.conf")
)
]
)
# Do some checks after installation
# Search for obsolete files.
obsoleteFiles = []
elements = {"/usr/bin/": ["fail2ban.py"],
"/usr/lib/fail2ban/firewall/": ["iptables.py", "ipfwadm.py",
"ipfw.py"]}
elements = {
"/etc/":
[
"fail2ban.conf"
],
"/usr/bin/":
[
"fail2ban.py"
],
"/usr/lib/fail2ban/firewall/":
[
"iptables.py",
"ipfwadm.py",
"ipfw.py"
]
}
for dir in elements:
for f in elements[dir]:
path = join(dir, f)
@ -77,6 +110,6 @@ if obsoleteFiles:
# Update config file
if argv[1] == "install":
print
print "Please do not forget to update your configuration file."
print "Use config/fail2ban.conf.* as example."
print "Please do not forget to update your configuration files."
print "They are in /etc/fail2ban/."
print

6
firewall/__init__.py → testcases/__init__.py
View File

@ -16,10 +16,10 @@
# Author: Cyril Jaquier
#
# $Revision: 1.1 $
# $Revision: 253 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.1 $"
__date__ = "$Date: 2004/10/09 15:33:33 $"
__version__ = "$Revision: 253 $"
__date__ = "$Date: 2006-07-17 00:21:58 +0200 (Mon, 17 Jul 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"

47
testcases/actiontestcase.py Normal file
View File

@ -0,0 +1,47 @@
# 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: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest, time
from server.action import Action
class ExecuteAction(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__action = Action("Test")
def tearDown(self):
"""Call after every test case."""
self.__action.execActionStop()
def testExecuteActionBan(self):
self.__action.setActionStart("touch /tmp/fail2ban.test")
self.__action.setActionStop("rm -f /tmp/fail2ban.test")
self.__action.setActionBan("echo -n")
self.__action.setActionCheck("[ -e /tmp/fail2ban.test ]")
self.assertTrue(self.__action.execActionBan(None))

56
testcases/banmanagertestcase.py Normal file
View File

@ -0,0 +1,56 @@
# 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: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest, socket, time, pickle
from server.banmanager import BanManager
from server.banticket import BanTicket
class AddFailure(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__ticket = BanTicket('193.168.0.128', 1167605999.0)
self.__banManager = BanManager()
self.assertTrue(self.__banManager.addBanTicket(self.__ticket))
def tearDown(self):
"""Call after every test case."""
def testAdd(self):
self.assertEqual(self.__banManager.size(), 1)
def testAddDuplicate(self):
self.assertFalse(self.__banManager.addBanTicket(self.__ticket))
self.assertEqual(self.__banManager.size(), 1)
def _testInListOK(self):
ticket = BanTicket('193.168.0.128', 1167605999.0)
self.assertTrue(self.__banManager.inBanList(ticket))
def _testInListNOK(self):
ticket = BanTicket('111.111.1.111', 1167605999.0)
self.assertFalse(self.__banManager.inBanList(ticket))

43
testcases/clientreadertestcase.py Normal file
View File

@ -0,0 +1,43 @@
# 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: 253 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 253 $"
__date__ = "$Date: 2006-07-17 00:21:58 +0200 (Mon, 17 Jul 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest
from client.jailreader import JailReader
class JailReaderTest(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
def tearDown(self):
"""Call after every test case."""
def testSplitAction(self):
action = "mail-whois[name=SSH]"
expected = ['mail-whois', {'name': 'SSH'}]
result = JailReader.splitAction(action)
self.assertEquals(expected, result)

56
testcases/datedetectortestcase.py Normal file
View File

@ -0,0 +1,56 @@
# 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: 253 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 253 $"
__date__ = "$Date: 2006-07-17 00:21:58 +0200 (Mon, 17 Jul 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest, time
from server.datedetector import DateDetector
from server.datetemplate import DateTemplate
class DateDetectorTest(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__datedetector = DateDetector()
self.__datedetector.addDefaultTemplate()
def tearDown(self):
"""Call after every test case."""
def testGetEpochTime(self):
log = "1138049999 [sshd] error: PAM: Authentication failure"
date = [2006, 1, 23, 20, 59, 59, 0, 23, 0]
dateUnix = 1138046399.0
self.assertEqual(self.__datedetector.getTime(log), date)
self.assertEqual(self.__datedetector.getUnixTime(log), dateUnix)
def testGetTime(self):
log = "Jan 23 21:59:59 [sshd] error: PAM: Authentication failure"
date = [2005, 1, 23, 21, 59, 59, 1, 23, -1]
dateUnix = 1106513999.0
self.assertEqual(self.__datedetector.getTime(log), date)
self.assertEqual(self.__datedetector.getUnixTime(log), dateUnix)

79
testcases/failmanagertestcase.py Normal file
View File

@ -0,0 +1,79 @@
# 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: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest, socket, time, pickle
from server.failmanager import FailManager
from server.failmanager import FailManagerEmpty
from server.failticket import FailTicket
class AddFailure(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__items = [['193.168.0.128', 1167605999.0],
['193.168.0.128', 1167605999.0],
['193.168.0.128', 1167605999.0],
['193.168.0.128', 1167605999.0],
['193.168.0.128', 1167605999.0],
['87.142.124.10', 1167605999.0],
['87.142.124.10', 1167605999.0],
['87.142.124.10', 1167605999.0]]
self.__failManager = FailManager()
for i in self.__items:
self.__failManager.addFailure(FailTicket(i[0], i[1]))
def tearDown(self):
"""Call after every test case."""
def testAdd(self):
self.assertEqual(self.__failManager.size(), 2)
def _testDel(self):
self.__failManager.delFailure('193.168.0.128')
self.__failManager.delFailure('111.111.1.111')
self.assertEqual(self.__failManager.size(), 1)
def testCleanupOK(self):
timestamp = 1167606999.0
self.__failManager.cleanup(timestamp)
self.assertEqual(self.__failManager.size(), 0)
def testCleanupNOK(self):
timestamp = 1167605990.0
self.__failManager.cleanup(timestamp)
self.assertEqual(self.__failManager.size(), 2)
def testbanOK(self):
self.__failManager.setMaxRetry(5)
#ticket = FailTicket('193.168.0.128', None)
ticket = self.__failManager.toBan()
self.assertEqual(ticket.getIP(), "193.168.0.128")
def testbanNOK(self):
self.__failManager.setMaxRetry(10)
self.assertRaises(FailManagerEmpty, self.__failManager.toBan)

19
testcases/files/testcase01.log Normal file
View File

@ -0,0 +1,19 @@
Déc 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Déc 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Déc 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Dec 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from failed.dns.ch
Dec 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from failed.dns.ch
Dec 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from failed.dns.ch
Dez 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Dez 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Dez 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
De 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
De 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
De 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Aug 14 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Aug 14 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Aug 14 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128
Dec 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 87.142.124.10
Dec 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 87.142.124.10
Dec 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 87.142.124.10
Dec 31 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 87.142.124.10

13
testcases/files/testcase02.log Normal file
View File

@ -0,0 +1,13 @@
Aug 14 11:51:00 i60p295 sshd[11437]: input_userauth_request: illegal user test123
Aug 14 11:52:00 i60p295 sshd[11437]: Failed password for illegal user test123 from ::ffff:66.38.192.238 port 51381 ssh2
Aug 14 11:53:00 i60p295 sshd[11437]: Connection closed by ::ffff:66.38.192.238
Aug 14 11:53:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:54:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:55:59 i60p295 sshd[12365]: Postponed keyboard-interactive for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:56:01 i60p295 sshd[12365]: Postponed keyboard-interactive/pam for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:57:01 i60p295 sshd[12365]: Accepted keyboard-interactive/pam for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:57:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:58:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:59:01 i60p295 sshd[12365]: Accepted keyboard-interactive/pam for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:59:01 i60p295 sshd[12365]: Accepted keyboard-interactive/pam for roehl from ::ffff:141.3.81.106 port 51332 ssh2
Aug 14 11:59:01 i60p295 sshd[12365]: Accepted keyboard-interactive/pam for roehl from ::ffff:141.3.81.106 port 51332 ssh2

9
testcases/files/testcase03.log Normal file
View File

@ -0,0 +1,9 @@
Aug 14 11:53:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.
Aug 14 11:54:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.
Aug 14 11:55:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.
Aou 14 11:56:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.
Aou 14 11:57:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.
Aoü 14 11:58:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.
Aug 14 11:59:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.
Aug 14 12:50:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.
Aug 14 12:51:04 HOSTNAME courieresmtpd: error,relay=::ffff:203.162.223.135,from=<firozquarl@aclunc.org>,to=<BOGUSUSER@HOSTEDDOMAIN.org>: 550 User unknown.

15
testcases/files/testcase04.log Normal file
View File

@ -0,0 +1,15 @@
Sep 21 22:03:07 [sshd] Invalid user toto from 212.41.96.185
1124012400 [sshd] Invalid user fuck from 212.41.96.185
Sep 21 21:03:38 [sshd] Invalid user toto from 212.41.96.185
1124012500 [sshd] Invalid user fuck from 212.41.96.185
Sep 21 21:03:46 [sshd] Invalid user toto from 212.41.96.185
Aug 14 11:58:48 [sshd] Invalid user fuck from 212.41.96.185
Aug 14 11:59:58 [sshd] Invalid user toto from 212.41.96.185
Sep 21 21:04:03 [sshd] Invalid user fuck from 212.41.96.185
- Last output repeated twice -
2005/08/14 11:57:00 [sshd] Invalid user toto from 212.41.96.186
2005/08/14 11:58:00 [sshd] Invalid user fuck from 212.41.96.186
2005/08/14 11:59:00 [sshd] Invalid user toto from 212.41.96.186
2005/08/14 12:00:00 [sshd] Invalid user fuck from 212.41.96.186
- Last output repeated twice -
Sep 21 21:09:01 [sshd] Invalid user toto from 212.41.96.185

168
testcases/filtertestcase.py Normal file
View File

@ -0,0 +1,168 @@
# 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: 437 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 437 $"
__date__ = "$Date: 2006-10-30 23:48:52 +0100 (Mon, 30 Oct 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest
from server.filterpoll import FilterPoll
from server.filter import Filter
from server.failmanager import FailManager
from server.failmanager import FailManagerEmpty
class IgnoreIP(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__filter = Filter(None)
def tearDown(self):
"""Call after every test case."""
def testIgnoreIPOK(self):
ipList = "127.0.0.1", "192.168.0.1", "255.255.255.255", "99.99.99.99"
for ip in ipList:
self.__filter.addIgnoreIP(ip)
self.assertTrue(self.__filter.inIgnoreIPList(ip))
# Test DNS
self.__filter.addIgnoreIP("www.epfl.ch")
self.assertTrue(self.__filter.inIgnoreIPList("128.178.50.12"))
def testIgnoreIPNOK(self):
ipList = "", "999.999.999.999", "abcdef", "192.168.0."
for ip in ipList:
self.__filter.addIgnoreIP(ip)
self.assertFalse(self.__filter.inIgnoreIPList(ip))
# Test DNS
self.__filter.addIgnoreIP("www.epfl.ch")
self.assertFalse(self.__filter.inIgnoreIPList("127.177.50.10"))
class LogFile(unittest.TestCase):
FILENAME = "testcases/files/testcase01.log"
def setUp(self):
"""Call before every test case."""
self.__filter = FilterPoll(None)
self.__filter.addLogPath(LogFile.FILENAME)
def tearDown(self):
"""Call after every test case."""
#def testOpen(self):
# self.__filter.openLogFile(LogFile.FILENAME)
def testIsModified(self):
self.assertTrue(self.__filter.isModified(LogFile.FILENAME))
class GetFailures(unittest.TestCase):
FILENAME_01 = "testcases/files/testcase01.log"
FILENAME_02 = "testcases/files/testcase02.log"
FILENAME_03 = "testcases/files/testcase03.log"
FILENAME_04 = "testcases/files/testcase04.log"
def setUp(self):
"""Call before every test case."""
self.__filter = Filter(None)
self.__filter.setActive(True)
# TODO Test this
#self.__filter.setTimeRegex("\S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}")
#self.__filter.setTimePattern("%b %d %H:%M:%S")
def tearDown(self):
"""Call after every test case."""
def testGetFailures01(self):
output = ('193.168.0.128', 3, 1124013599.0)
self.__filter.addLogPath(GetFailures.FILENAME_01)
self.__filter.setFailRegex("(?:(?:Authentication failure|Failed [-/\w+]+) for(?: [iI](?:llegal|nvalid) user)?|[Ii](?:llegal|nvalid) user|ROOT LOGIN REFUSED) .*(?: from|FROM) (?:::f{4,6}:)?(?P<host>\S*)")
self.__filter.getFailures(GetFailures.FILENAME_01)
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
found = (ip, attempts, date)
self.assertEqual(found, output)
def testGetFailures02(self):
output = ('141.3.81.106', 4, 1124013539.0)
self.__filter.addLogPath(GetFailures.FILENAME_02)
self.__filter.setFailRegex("Failed .* (?:::f{4,6}:)(?P<host>\S*)")
self.__filter.getFailures(GetFailures.FILENAME_02)
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
found = (ip, attempts, date)
self.assertEqual(found, output)
def testGetFailures03(self):
output = ('203.162.223.135', 6, 1124013544.0)
self.__filter.addLogPath(GetFailures.FILENAME_03)
self.__filter.setFailRegex("error,relay=(?:::f{4,6}:)?(?P<host>\S*),.*550 User unknown")
self.__filter.getFailures(GetFailures.FILENAME_03)
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
found = (ip, attempts, date)
self.assertEqual(found, output)
def testGetFailures04(self):
output = [('212.41.96.186', 4, 1124013600.0),
('212.41.96.185', 4, 1124013598.0)]
self.__filter.addLogPath(GetFailures.FILENAME_04)
self.__filter.setFailRegex("Invalid user .* (?P<host>\S*)")
self.__filter.getFailures(GetFailures.FILENAME_04)
try:
for i in range(2):
ticket = self.__filter.failManager.toBan()
attempts = ticket.getAttempt()
date = ticket.getTime()
ip = ticket.getIP()
found = (ip, attempts, date)
self.assertEqual(found, output[i])
except FailManagerEmpty:
pass

127
testcases/servertestcase.py Normal file
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@ -0,0 +1,127 @@
# 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: 382 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 382 $"
__date__ = "$Date: 2006-09-25 19:03:48 +0200 (Mon, 25 Sep 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import unittest, socket, time
from server.server import Server
class StartStop(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__server = Server()
self.__server.setLogLevel(0)
self.__server.start(False)
def tearDown(self):
"""Call after every test case."""
self.__server.quit()
def testStartStopJail(self):
name = "TestCase"
self.__server.addJail(name)
self.__server.startJail(name)
time.sleep(1)
self.__server.stopJail(name)
class Transmitter(unittest.TestCase):
def setUp(self):
"""Call before every test case."""
self.__server = Server()
self.__server.setLogLevel(0)
self.__server.start(False)
def tearDown(self):
"""Call after every test case."""
self.__server.quit()
def testSetActionOK(self):
name = "TestCase"
cmdList = [["add", name],
["set", name, "actionstart", "Action Start"],
["set", name, "actionstop", "Action Stop"],
["set", name, "actioncheck", "Action Check"],
["set", name, "actionban", "Action Ban"],
["set", name, "actionunban", "Action Unban"],
["quit"]]
outList = [(0, name),
(0, 'Action Start'),
(0, 'Action Stop'),
(0, 'Action Check'),
(0, 'Action Ban'),
(0, 'Action Unban'),
(0, None)]
cnt = 0
for cmd in cmdList:
self.assertEqual(self.__server.transm.proceed(cmd), outList[cnt])
cnt += 1
def testSetActionNOK(self):
name = "TestCase"
cmdList = [["addd", name],
["set", name, "test"],
["prout prout", "Stop"],
["fail2ban", "sucks"],
["set"],
["_/&%", "@*+%&"],
[" quit"]]
outList = [1,
1,
1,
1,
1,
1,
1]
cnt = 0
for cmd in cmdList:
msg = self.__server.transm.proceed(cmd)
self.assertEqual(msg[0], outList[cnt])
cnt += 1
def testJail(self):
name = "TestCase"
cmdList = [["add", name],
["set", name, "logpath", "testcases/files/testcase01.log"],
["set", name, "timeregex", "\S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}"],
["set", name, "timepattern", "%b %d %H:%M:%S"],
["set", name, "failregex", "Authentication failure"],
["start", name],
["stop", name],
["quit"]]
for cmd in cmdList:
self.__server.transm.proceed(cmd)
if cmd == ["start", name]:
time.sleep(2)
jail = self.__server.jails[name]
self.assertEqual(jail.getFilter().failManager.size(), 0)
self.assertEqual(jail.getAction().banManager.size(), 2)

102
utils/dns.py
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@ -1,102 +0,0 @@
# 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: 2005/11/20 17:07:47 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import os, re, socket, struct
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 isValidIP(str):
""" Return true if str is a valid IP
"""
s = str.split('/', 1)
try:
socket.inet_aton(s[0])
return True
except socket.error:
return False
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:
if isValidIP(element):
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
def cidr(i, n):
""" Convert an IP address string with a CIDR mask into a 32-bit
integer.
"""
# 32-bit IPv4 address mask
MASK = 0xFFFFFFFFL
return ~(MASK >> n) & MASK & addr2bin(i)
def addr2bin(str):
""" Convert a string IPv4 address into an unsigned integer.
"""
return struct.unpack("!L", socket.inet_aton(str))[0]
def bin2addr(addr):
""" Convert a numeric IPv4 address into string n.n.n.n form.
"""
return socket.inet_ntoa(struct.pack("!L", addr))

91
utils/mail.py
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@ -1,91 +0,0 @@
# 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: 1.3 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.3 $"
__date__ = "$Date: 2006/01/03 15:13:41 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import logging, smtplib, email.Utils
from utils.strings import replaceTag
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
class Mail:
""" Mailer class
"""
def __init__(self, host, port = 25):
self.host = host
self.port = port
self.localTimeFlag = False
def setFromAddr(self, fromAddr):
""" Set from: address
"""
self.fromAddr = fromAddr
def setUser(self, user):
""" Set smtpuser
"""
self.user = user
def setPassword(self, password):
""" Set smtppassword
"""
self.password = password
def setToAddr(self, toAddr):
""" Set to: address
"""
self.toAddr = toAddr.split()
def setLocalTimeFlag(self, localTimeFlag):
""" Set to: address
"""
self.localTimeFlag = localTimeFlag
def sendmail(self, subject, message, aInfo):
""" Send an email using smtplib
"""
subj = replaceTag(subject, aInfo)
msg = replaceTag(message, aInfo)
mail = ("From: %s\r\nTo: %s\r\nDate: %s\r\nSubject: %s\r\n\r\n" %
(self.fromAddr, ", ".join(self.toAddr),
email.Utils.formatdate(localtime = self.localTimeFlag),
subj)) + msg
try:
server = smtplib.SMTP(self.host, self.port)
#server.set_debuglevel(1)
if not self.user == '':
server.login(self.user, self.password)
server.sendmail(self.fromAddr, self.toAddr, mail)
logSys.debug("Email sent to " + `self.toAddr`)
server.quit()
except Exception, e:
logSys.error("Unable to send mail to " + self.host + ":" +
`self.port` + " from " + self.fromAddr + " to " +
`self.toAddr` + ": " + `e` + ": " + `e.args`)

109
utils/pidlock.py
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@ -1,109 +0,0 @@
# 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: 1.2 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.2 $"
__date__ = "$Date: 2005/11/20 17:07:47 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import os, logging
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
class PIDLock:
""" Manages the PID lock file.
The following class shows how to implement the singleton pattern[1] in
Python. A singleton is a class that makes sure only one instance of it
is ever created. Typically such classes are used to manage resources
that by their very nature can only exist once.
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52558
"""
class __impl:
""" Implementation of the singleton interface """
def setPath(self, path):
""" Set PID lock file path.
"""
self.path = path
def create(self):
""" Create PID lock.
"""
try:
fileHandler = open(self.path, mode='w')
pid = os.getpid()
fileHandler.write(`pid` + '\n')
fileHandler.close()
logSys.debug("Created PID lock (" + `pid` + ") in " + self.path)
return True
except:
logSys.error("Unable to create PID lock " + self.path)
return False
def remove(self):
""" Remove PID lock.
"""
try:
os.remove(self.path)
logSys.debug("Removed PID lock " + self.path)
except OSError:
logSys.error("Unable to remove PID lock " + self.path)
except AttributeError:
# AttributeError if self.path wasn't specified yet
logSys.debug("PID lock not removed because not defined yet")
def exists(self):
""" Returns the current PID if Fail2Ban is running or False
if no instance found.
"""
try:
fileHandler = open(self.path)
pid = fileHandler.readline()
fileHandler.close()
return pid
except IOError:
return False
# storage for the instance reference
__instance = None
def __init__(self):
""" Create singleton instance """
# Check whether we already have an instance
if PIDLock.__instance is None:
# Create and remember instance
PIDLock.__instance = PIDLock.__impl()
# Store instance reference as the only member in the handle
self.__dict__['_PIDLock__instance'] = PIDLock.__instance
def __getattr__(self, attr):
""" Delegate access to implementation """
return getattr(self.__instance, attr)
def __setattr__(self, attr, value):
""" Delegate access to implementation """
return setattr(self.__instance, attr, value)

137
utils/process.py
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@ -1,137 +0,0 @@
# 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: 1.2 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.2 $"
__date__ = "$Date: 2005/11/20 17:07:47 $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
import os, logging, signal
# Gets the instance of the logger.
logSys = logging.getLogger("fail2ban")
class ExternalError(UserWarning):
""" Exception to warn about failed fwcheck or fwban command
"""
pass
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("/")
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 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'")
return False
def executeCmd(cmd, debug):
""" Executes an OS command.
"""
if cmd == "":
logSys.debug("Nothing to do")
return None
logSys.debug(cmd)
if not debug:
retval = os.system(cmd)
if not retval == 0:
logSys.error("'" + cmd + "' returned " + `retval`)
raise ExternalError("Execution of command '%s' failed" % cmd)
return retval
else:
return None

8
version.py
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@ -16,12 +16,12 @@
# Author: Cyril Jaquier
#
# $Revision: 1.15 $
# $Revision: 446 $
__author__ = "Cyril Jaquier"
__version__ = "$Revision: 1.15 $"
__date__ = "$Date: 2006/03/15 23:07:12 $"
__version__ = "$Revision: 446 $"
__date__ = "$Date: 2006-11-01 23:13:44 +0100 (Wed, 01 Nov 2006) $"
__copyright__ = "Copyright (c) 2004 Cyril Jaquier"
__license__ = "GPL"
version = "0.6.1"
version = "0.7.4"