gnu: Add fail2ban.

* gnu/packages/admin.scm (fail2ban): New variable.
* gnu/packages/patches/fail2ban-0.11.2_CVE-2021-32749.patch,
gnu/packages/patches/fail2ban-0.11.2_fix-setuptools-drop-2to3.patch,
gnu/packages/patches/fail2ban-0.11.2_fix-test-suite.patch,
gnu/packages/patches/fail2ban-paths-guix-conf.patch,
gnu/packages/patches/fail2ban-python310-server-action.patch,
gnu/packages/patches/fail2ban-python310-server-actions.patch,
gnu/packages/patches/fail2ban-python310-server-jails.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

7 files changed, 376 insertions, 0 deletions

diff --git a/gnu/packages/patches/fail2ban-0.11.2_CVE-2021-32749.patch b/gnu/packages/patches/fail2ban-0.11.2_CVE-2021-32749.patch
new file mode 100644
index 0000000000..d3c677918c
--- /dev/null
+++ b/gnu/packages/patches/fail2ban-0.11.2_CVE-2021-32749.patch
@@ -0,0 +1,155 @@
+From 410a6ce5c80dd981c22752da034f2529b5eee844 Mon Sep 17 00:00:00 2001
+From: sebres <serg.brester@sebres.de>
+Date: Mon, 21 Jun 2021 17:12:53 +0200
+Subject: [PATCH] fixed possible RCE vulnerability, unset escape variable
+ (default tilde) stops consider "~" char after new-line as composing escape
+ sequence
+
+---
+ config/action.d/complain.conf         | 2 +-
+ config/action.d/dshield.conf          | 2 +-
+ config/action.d/mail-buffered.conf    | 8 ++++----
+ config/action.d/mail-whois-lines.conf | 2 +-
+ config/action.d/mail-whois.conf       | 6 +++---
+ config/action.d/mail.conf             | 6 +++---
+ 6 files changed, 13 insertions(+), 13 deletions(-)
+
+diff --git a/config/action.d/complain.conf b/config/action.d/complain.conf
+index 3a5f882c9f..4d73b05859 100644
+--- a/config/action.d/complain.conf
++++ b/config/action.d/complain.conf
+@@ -102,7 +102,7 @@ logpath = /dev/null
+ # Notes.:  Your system mail command. Is passed 2 args: subject and recipient
+ # Values:  CMD
+ #
+-mailcmd = mail -s
++mailcmd = mail -E 'set escape' -s
+ 
+ # Option:  mailargs
+ # Notes.:  Additional arguments to mail command. e.g. for standard Unix mail:
+diff --git a/config/action.d/dshield.conf b/config/action.d/dshield.conf
+index c128bef348..3d5a7a53a9 100644
+--- a/config/action.d/dshield.conf
++++ b/config/action.d/dshield.conf
+@@ -179,7 +179,7 @@ tcpflags =
+ # Notes.:  Your system mail command. Is passed 2 args: subject and recipient
+ # Values:  CMD
+ #
+-mailcmd = mail -s
++mailcmd = mail -E 'set escape' -s
+ 
+ # Option:  mailargs
+ # Notes.:  Additional arguments to mail command. e.g. for standard Unix mail:
+diff --git a/config/action.d/mail-buffered.conf b/config/action.d/mail-buffered.conf
+index 325f185b2f..79b841049c 100644
+--- a/config/action.d/mail-buffered.conf
++++ b/config/action.d/mail-buffered.conf
+@@ -17,7 +17,7 @@ actionstart = printf %%b "Hi,\n
+               The jail <name> has been started successfully.\n
+               Output will be buffered until <lines> lines are available.\n
+               Regards,\n
+-              Fail2Ban"|mail -s "[Fail2Ban] <name>: started on <fq-hostname>" <dest>
++              Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: started on <fq-hostname>" <dest>
+ 
+ # Option:  actionstop
+ # Notes.:  command executed at the stop of jail (or at the end of Fail2Ban)
+@@ -28,13 +28,13 @@ actionstop = if [ -f <tmpfile> ]; then
+                  These hosts have been banned by Fail2Ban.\n
+                  `cat <tmpfile>`
+                  Regards,\n
+-                 Fail2Ban"|mail -s "[Fail2Ban] <name>: Summary from <fq-hostname>" <dest>
++                 Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: Summary from <fq-hostname>" <dest>
+                  rm <tmpfile>
+              fi
+              printf %%b "Hi,\n
+              The jail <name> has been stopped.\n
+              Regards,\n
+-             Fail2Ban"|mail -s "[Fail2Ban] <name>: stopped on <fq-hostname>" <dest>
++             Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: stopped on <fq-hostname>" <dest>
+ 
+ # Option:  actioncheck
+ # Notes.:  command executed once before each actionban command
+@@ -55,7 +55,7 @@ actionban = printf %%b "`date`: <ip> (<failures> failures)\n" >> <tmpfile>
+                 These hosts have been banned by Fail2Ban.\n
+                 `cat <tmpfile>`
+                 \nRegards,\n
+-                Fail2Ban"|mail -s "[Fail2Ban] <name>: Summary" <dest>
++                Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: Summary" <dest>
+                 rm <tmpfile>
+             fi
+ 
+diff --git a/config/action.d/mail-whois-lines.conf b/config/action.d/mail-whois-lines.conf
+index 3a3e56b2c7..d2818cb9b9 100644
+--- a/config/action.d/mail-whois-lines.conf
++++ b/config/action.d/mail-whois-lines.conf
+@@ -72,7 +72,7 @@ actionunban =
+ # Notes.:  Your system mail command. Is passed 2 args: subject and recipient
+ # Values:  CMD
+ #
+-mailcmd = mail -s
++mailcmd = mail -E 'set escape' -s
+ 
+ # Default name of the chain
+ #
+diff --git a/config/action.d/mail-whois.conf b/config/action.d/mail-whois.conf
+index 7fea34c40d..ab33b616dc 100644
+--- a/config/action.d/mail-whois.conf
++++ b/config/action.d/mail-whois.conf
+@@ -20,7 +20,7 @@ norestored = 1
+ actionstart = printf %%b "Hi,\n
+               The jail <name> has been started successfully.\n
+               Regards,\n
+-              Fail2Ban"|mail -s "[Fail2Ban] <name>: started on <fq-hostname>" <dest>
++              Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: started on <fq-hostname>" <dest>
+ 
+ # Option:  actionstop
+ # Notes.:  command executed at the stop of jail (or at the end of Fail2Ban)
+@@ -29,7 +29,7 @@ actionstart = printf %%b "Hi,\n
+ actionstop = printf %%b "Hi,\n
+              The jail <name> has been stopped.\n
+              Regards,\n
+-             Fail2Ban"|mail -s "[Fail2Ban] <name>: stopped on <fq-hostname>" <dest>
++             Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: stopped on <fq-hostname>" <dest>
+ 
+ # Option:  actioncheck
+ # Notes.:  command executed once before each actionban command
+@@ -49,7 +49,7 @@ actionban = printf %%b "Hi,\n
+             Here is more information about <ip> :\n
+             `%(_whois_command)s`\n
+             Regards,\n
+-            Fail2Ban"|mail -s "[Fail2Ban] <name>: banned <ip> from <fq-hostname>" <dest>
++            Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: banned <ip> from <fq-hostname>" <dest>
+ 
+ # Option:  actionunban
+ # Notes.:  command executed when unbanning an IP. Take care that the
+diff --git a/config/action.d/mail.conf b/config/action.d/mail.conf
+index 5d8c0e154c..f4838ddcb6 100644
+--- a/config/action.d/mail.conf
++++ b/config/action.d/mail.conf
+@@ -16,7 +16,7 @@ norestored = 1
+ actionstart = printf %%b "Hi,\n
+               The jail <name> has been started successfully.\n
+               Regards,\n
+-              Fail2Ban"|mail -s "[Fail2Ban] <name>: started  on <fq-hostname>" <dest>
++              Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: started  on <fq-hostname>" <dest>
+ 
+ # Option:  actionstop
+ # Notes.:  command executed at the stop of jail (or at the end of Fail2Ban)
+@@ -25,7 +25,7 @@ actionstart = printf %%b "Hi,\n
+ actionstop = printf %%b "Hi,\n
+              The jail <name> has been stopped.\n
+              Regards,\n
+-             Fail2Ban"|mail -s "[Fail2Ban] <name>: stopped on <fq-hostname>" <dest>
++             Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: stopped on <fq-hostname>" <dest>
+ 
+ # Option:  actioncheck
+ # Notes.:  command executed once before each actionban command
+@@ -43,7 +43,7 @@ actionban = printf %%b "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> from <fq-hostname>" <dest>
++            Fail2Ban"|mail -E 'set escape' -s "[Fail2Ban] <name>: banned <ip> from <fq-hostname>" <dest>
+ 
+ # Option:  actionunban
+ # Notes.:  command executed when unbanning an IP. Take care that the
diff --git a/gnu/packages/patches/fail2ban-0.11.2_fix-setuptools-drop-2to3.patch b/gnu/packages/patches/fail2ban-0.11.2_fix-setuptools-drop-2to3.patch
new file mode 100644
index 0000000000..b0b14364b1
--- /dev/null
+++ b/gnu/packages/patches/fail2ban-0.11.2_fix-setuptools-drop-2to3.patch
@@ -0,0 +1,64 @@
+From 5ac303df8a171f748330d4c645ccbf1c2c7f3497 Mon Sep 17 00:00:00 2001
+From: sebres <info@sebres.de>
+Date: Sun, 19 Sep 2021 18:49:18 +0200
+Subject: [PATCH] fix gh-3098: build fails with error in fail2ban setup
+ command: use_2to3 is invalid (setuptools 58+)
+
+---
+ setup.py | 16 +---------------
+ 1 file changed, 1 insertion(+), 15 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index f4c2550f6f..98413273c5 100755
+--- a/setup.py
++++ b/setup.py
+@@ -48,7 +48,7 @@
+ from glob import glob
+ 
+ from fail2ban.setup import updatePyExec
+-
++from fail2ban.version import version
+ 
+ source_dir = os.path.realpath(os.path.dirname(
+ 	# __file__ seems to be overwritten sometimes on some python versions (e.g. bug of 2.6 by running under cProfile, etc.):
+@@ -112,22 +112,12 @@ def update_scripts(self, dry_run=False):
+ # Wrapper to specify fail2ban own options:
+ class install_command_f2b(install):
+ 	user_options = install.user_options + [
+-		('disable-2to3', None, 'Specify to deactivate 2to3, e.g. if the install runs from fail2ban test-cases.'),
+ 		('without-tests', None, 'without tests files installation'),
+ 	]
+ 	def initialize_options(self):
+-		self.disable_2to3 = None
+ 		self.without_tests = not with_tests
+ 		install.initialize_options(self)
+ 	def finalize_options(self):
+-		global _2to3
+-		## in the test cases 2to3 should be already done (fail2ban-2to3):
+-		if self.disable_2to3:
+-			_2to3 = False
+-		if _2to3:
+-			cmdclass = self.distribution.cmdclass
+-			cmdclass['build_py'] = build_py_2to3
+-			cmdclass['build_scripts'] = build_scripts_2to3
+ 		if self.without_tests:
+ 			self.distribution.scripts.remove('bin/fail2ban-testcases')
+ 
+@@ -178,7 +168,6 @@ def run(self):
+ if setuptools:
+ 	setup_extra = {
+ 		'test_suite': "fail2ban.tests.utils.gatherTests",
+-		'use_2to3': True,
+ 	}
+ else:
+ 	setup_extra = {}
+@@ -202,9 +191,6 @@ def run(self):
+ 		('/usr/share/doc/fail2ban', doc_files)
+ 	)
+ 
+-# Get version number, avoiding importing fail2ban.
+-# This is due to tests not functioning for python3 as 2to3 takes place later
+-exec(open(join("fail2ban", "version.py")).read())
+ 
+ setup(
+ 	name = "fail2ban",
diff --git a/gnu/packages/patches/fail2ban-0.11.2_fix-test-suite.patch b/gnu/packages/patches/fail2ban-0.11.2_fix-test-suite.patch
new file mode 100644
index 0000000000..91d973e72e
--- /dev/null
+++ b/gnu/packages/patches/fail2ban-0.11.2_fix-test-suite.patch
@@ -0,0 +1,48 @@
+From 747d4683221b5584f9663695fb48145689b42ceb Mon Sep 17 00:00:00 2001
+From: sebres <info@sebres.de>
+Date: Mon, 4 Jan 2021 02:42:38 +0100
+Subject: [PATCH] fixes century selector of %ExY and %Exy in datepattern for
+ tests, considering interval from 2005 (alternate now) to now; + better
+ grouping algorithm for resulting century RE
+
+---
+ fail2ban/server/strptime.py | 24 ++++++++++++++++++++++--
+ 1 file changed, 22 insertions(+), 2 deletions(-)
+
+diff --git a/fail2ban/server/strptime.py b/fail2ban/server/strptime.py
+index 1464a96d1f..39fc795865 100644
+--- a/fail2ban/server/strptime.py
++++ b/fail2ban/server/strptime.py
+@@ -36,10 +36,30 @@ def _getYearCentRE(cent=(0,3), distance=3, now=(MyTime.now(), MyTime.alternateNo
+ 	Thereby respect possible run in the test-cases (alternate date used there)
+ 	"""
+ 	cent = lambda year, f=cent[0], t=cent[1]: str(year)[f:t]
++	def grp(exprset):
++		c = None
++		if len(exprset) > 1:
++			for i in exprset:
++				if c is None or i[0:-1] == c:
++					c = i[0:-1]
++				else:
++					c = None
++					break
++			if not c:
++				for i in exprset:
++					if c is None or i[0] == c:
++						c = i[0]
++					else:
++						c = None
++						break
++			if c:
++				return "%s%s" % (c, grp([i[len(c):] for i in exprset]))
++		return ("(?:%s)" % "|".join(exprset) if len(exprset[0]) > 1 else "[%s]" % "".join(exprset)) \
++			if len(exprset) > 1 else "".join(exprset)
+ 	exprset = set( cent(now[0].year + i) for i in (-1, distance) )
+ 	if len(now) and now[1]:
+-		exprset |= set( cent(now[1].year + i) for i in (-1, distance) )
+-	return "(?:%s)" % "|".join(exprset) if len(exprset) > 1 else "".join(exprset)
++		exprset |= set( cent(now[1].year + i) for i in xrange(-1, now[0].year-now[1].year+1, distance) )
++	return grp(sorted(list(exprset)))
+ 
+ timeRE = TimeRE()
+ 
diff --git a/gnu/packages/patches/fail2ban-paths-guix-conf.patch b/gnu/packages/patches/fail2ban-paths-guix-conf.patch
new file mode 100644
index 0000000000..8c2a5747ba
--- /dev/null
+++ b/gnu/packages/patches/fail2ban-paths-guix-conf.patch
@@ -0,0 +1,32 @@
+From ef28dcf7a5bdbfd8ba586bb066d5ec53188a6bf9 Mon Sep 17 00:00:00 2001
+From: muradm <mail@muradm.net>
+Date: Fri, 15 Jul 2022 20:08:14 +0300
+Subject: [PATCH] Add paths-guix.conf file.
+
+---
+ config/paths-guix.conf | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+ create mode 100644 config/paths-guix.conf
+
+diff --git a/config/paths-guix.conf b/config/paths-guix.conf
+new file mode 100644
+index 00000000..b4a2e9f5
+--- /dev/null
++++ b/config/paths-guix.conf
+@@ -0,0 +1,13 @@
++# Guix
++
++[INCLUDES]
++
++before = paths-common.conf
++after = paths-overrides.local
++
++
++[DEFAULT]
++
++syslog_authpriv = /var/log/secure
++syslog_mail = /var/log/maillog
++syslog_mail_warn = /var/log/maillog
+-- 
+2.36.1
+
diff --git a/gnu/packages/patches/fail2ban-python310-server-action.patch b/gnu/packages/patches/fail2ban-python310-server-action.patch
new file mode 100644
index 0000000000..723d7f7aa6
--- /dev/null
+++ b/gnu/packages/patches/fail2ban-python310-server-action.patch
@@ -0,0 +1,27 @@
+From 2b6bb2c1bed8f7009631e8f8c306fa3160324a49 Mon Sep 17 00:00:00 2001
+From: "Sergey G. Brester" <serg.brester@sebres.de>
+Date: Mon, 8 Feb 2021 17:19:24 +0100
+Subject: [PATCH] follow bpo-37324: :ref:`collections-abstract-base-classes`
+ moved to the :mod:`collections.abc` module
+
+(since 3.10-alpha.5 `MutableMapping` is missing in collections module)
+---
+ fail2ban/server/action.py | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/fail2ban/server/action.py b/fail2ban/server/action.py
+index 3bc48fe046..f0f1e6f59a 100644
+--- a/fail2ban/server/action.py
++++ b/fail2ban/server/action.py
+@@ -30,7 +30,10 @@
+ import threading
+ import time
+ from abc import ABCMeta
+-from collections import MutableMapping
++try:
++	from collections.abc import MutableMapping
++except ImportError:
++	from collections import MutableMapping
+ 
+ from .failregex import mapTag2Opt
+ from .ipdns import DNSUtils
diff --git a/gnu/packages/patches/fail2ban-python310-server-actions.patch b/gnu/packages/patches/fail2ban-python310-server-actions.patch
new file mode 100644
index 0000000000..e31316d28b
--- /dev/null
+++ b/gnu/packages/patches/fail2ban-python310-server-actions.patch
@@ -0,0 +1,25 @@
+From 42dee38ad2ac5c3f23bdf297d824022923270dd9 Mon Sep 17 00:00:00 2001
+From: "Sergey G. Brester" <serg.brester@sebres.de>
+Date: Mon, 8 Feb 2021 17:25:45 +0100
+Subject: [PATCH] amend for `Mapping`
+
+---
+ fail2ban/server/actions.py | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/fail2ban/server/actions.py b/fail2ban/server/actions.py
+index b7b95b445a..897d907c1a 100644
+--- a/fail2ban/server/actions.py
++++ b/fail2ban/server/actions.py
+@@ -28,7 +28,10 @@
+ import os
+ import sys
+ import time
+-from collections import Mapping
++try:
++	from collections.abc import Mapping
++except ImportError:
++	from collections import Mapping
+ try:
+ 	from collections import OrderedDict
+ except ImportError:
diff --git a/gnu/packages/patches/fail2ban-python310-server-jails.patch b/gnu/packages/patches/fail2ban-python310-server-jails.patch
new file mode 100644
index 0000000000..e5873c415e
--- /dev/null
+++ b/gnu/packages/patches/fail2ban-python310-server-jails.patch
@@ -0,0 +1,25 @@
+From 9f1d1f4fbd0804695a976beb191f2c49a2739834 Mon Sep 17 00:00:00 2001
+From: "Sergey G. Brester" <serg.brester@sebres.de>
+Date: Mon, 8 Feb 2021 17:35:59 +0100
+Subject: [PATCH] amend for `Mapping` (jails)
+
+---
+ fail2ban/server/jails.py | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/fail2ban/server/jails.py b/fail2ban/server/jails.py
+index 972a8c4bd2..27e12ddf65 100644
+--- a/fail2ban/server/jails.py
++++ b/fail2ban/server/jails.py
+@@ -22,7 +22,10 @@
+ __license__ = "GPL"
+ 
+ from threading import Lock
+-from collections import Mapping
++try:
++	from collections.abc import Mapping
++except ImportError:
++	from collections import Mapping
+ 
+ from ..exceptions import DuplicateJailException, UnknownJailException
+ from .jail import Jail