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import iptables-1.8.10-2.el9

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c9-beta imports/c9-beta/iptables-1.8.10-2.el9
MSVSphere Packaging Team 8 months ago
commit 598fc400e8
17 changed files with 3001 additions and 0 deletions
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1
.gitignore vendored
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SOURCES/iptables-1.8.10.tar.xz

1
.iptables.metadata
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ddbebf81eacbf900dc6dd4ed409353930397e0c2 SOURCES/iptables-1.8.10.tar.xz

336
SOURCES/0001-doc-Add-deprecation-notices-to-all-relevant-man-page.patch
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From 2abc07c47189b26fce16f4751a96f747fa53fc0f Mon Sep 17 00:00:00 2001
From: Phil Sutter <psutter@redhat.com>
Date: Thu, 17 Jun 2021 18:44:28 +0200
Subject: [PATCH] doc: Add deprecation notices to all relevant man pages
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1945151
Upstream Status: RHEL-only
This is RHEL9 trying to friendly kick people towards nftables.
Signed-off-by: Phil Sutter <psutter@redhat.com>
---
iptables/arptables-nft-restore.8 | 13 ++++++++++++-
iptables/arptables-nft-save.8 | 14 +++++++++++++-
iptables/arptables-nft.8 | 19 ++++++++++++++++++-
iptables/ebtables-nft.8 | 15 ++++++++++++++-
iptables/iptables-apply.8.in | 14 +++++++++++++-
iptables/iptables-extensions.8.tmpl.in | 14 ++++++++++++++
iptables/iptables-restore.8.in | 17 ++++++++++++++++-
iptables/iptables-save.8.in | 15 ++++++++++++++-
iptables/iptables.8.in | 17 +++++++++++++++++
iptables/xtables-monitor.8.in | 11 +++++++++++
10 files changed, 142 insertions(+), 7 deletions(-)
diff --git a/iptables/arptables-nft-restore.8 b/iptables/arptables-nft-restore.8
index 09d9082..b1bf029 100644
--- a/iptables/arptables-nft-restore.8
+++ b/iptables/arptables-nft-restore.8
@@ -24,6 +24,17 @@ arptables-restore \- Restore ARP Tables (nft-based)
.SH SYNOPSIS
\fBarptables\-restore
.SH DESCRIPTION
+This tool is
+.B deprecated
+in Red Hat Enterprise Linux. It is maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details.
.PP
.B arptables-restore
is used to restore ARP Tables from data specified on STDIN or
@@ -35,5 +46,5 @@ flushes (deletes) all previous contents of the respective ARP Table.
.SH AUTHOR
Jesper Dangaard Brouer <brouer@redhat.com>
.SH SEE ALSO
-\fBarptables\-save\fP(8), \fBarptables\fP(8)
+\fBarptables\-save\fP(8), \fBarptables\fP(8), \fBnft\fP(8)
.PP
diff --git a/iptables/arptables-nft-save.8 b/iptables/arptables-nft-save.8
index 905e598..49bb0f6 100644
--- a/iptables/arptables-nft-save.8
+++ b/iptables/arptables-nft-save.8
@@ -27,6 +27,18 @@ arptables-save \- dump arptables rules to stdout (nft-based)
\fBarptables\-save\fP [\fB\-V\fP]
.SH DESCRIPTION
.PP
+This tool is
+.B deprecated
+in Red Hat Enterprise Linux. It is maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details.
+.PP
.B arptables-save
is used to dump the contents of an ARP Table in easily parseable format
to STDOUT. Use I/O-redirection provided by your shell to write to a file.
@@ -43,5 +55,5 @@ Print version information and exit.
.SH AUTHOR
Jesper Dangaard Brouer <brouer@redhat.com>
.SH SEE ALSO
-\fBarptables\-restore\fP(8), \fBarptables\fP(8)
+\fBarptables\-restore\fP(8), \fBarptables\fP(8), \fBnft\fP(8)
.PP
diff --git a/iptables/arptables-nft.8 b/iptables/arptables-nft.8
index ea31e08..ec5b993 100644
--- a/iptables/arptables-nft.8
+++ b/iptables/arptables-nft.8
@@ -39,6 +39,19 @@ arptables \- ARP table administration (nft-based)
.BR "arptables " [ "-t table" ] " -P chain target " [ options ]
.SH DESCRIPTION
+.PP
+This tool is
+.B deprecated
+in Red Hat Enterprise Linux. It is maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details.
+.PP
.B arptables
is a user space tool, it is used to set up and maintain the
tables of ARP rules in the Linux kernel. These rules inspect
@@ -340,9 +353,13 @@ bridges, the same may be achieved using
chain in
.BR ebtables .
+This tool is deprecated in Red Hat Enterprise Linux. It is maintenance only and
+will not receive new features. New setups should use \fBnft\fP(8). Existing
+setups should migrate to \fBnft\fP(8) when possible.
+
.SH MAILINGLISTS
.BR "" "See " http://netfilter.org/mailinglists.html
.SH SEE ALSO
-.BR xtables-nft "(8), " iptables "(8), " ebtables "(8), " ip (8)
+.BR xtables-nft "(8), " iptables "(8), " ebtables "(8), " ip "(8), " nft (8)
.PP
.BR "" "See " https://wiki.nftables.org
diff --git a/iptables/ebtables-nft.8 b/iptables/ebtables-nft.8
index 0304b50..cfd617a 100644
--- a/iptables/ebtables-nft.8
+++ b/iptables/ebtables-nft.8
@@ -46,6 +46,19 @@ ebtables \- Ethernet bridge frame table administration (nft-based)
.br
.SH DESCRIPTION
+.PP
+This tool is
+.B deprecated
+in Red Hat Enterprise Linux. It is maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details.
+.PP
.B ebtables
is an application program used to set up and maintain the
tables of rules (inside the Linux kernel) that inspect
@@ -1083,6 +1096,6 @@ has not been implemented, although
might replace them entirely given the inherent atomicity of nftables.
Finally, this list is probably not complete.
.SH SEE ALSO
-.BR xtables-nft "(8), " iptables "(8), " ip (8)
+.BR xtables-nft "(8), " iptables "(8), " ip "(8), " nft (8)
.PP
.BR "" "See " https://wiki.nftables.org
diff --git a/iptables/iptables-apply.8.in b/iptables/iptables-apply.8.in
index f0ed4e5..7f99a21 100644
--- a/iptables/iptables-apply.8.in
+++ b/iptables/iptables-apply.8.in
@@ -11,6 +11,18 @@ iptables-apply \- a safer way to update iptables remotely
\fBiptables\-apply\fP [\-\fBhV\fP] [\fB-t\fP \fItimeout\fP] [\fB-w\fP \fIsavefile\fP] {[\fIrulesfile]|-c [runcmd]}\fP
.SH "DESCRIPTION"
.PP
+This tool is
+.B deprecated
+in Red Hat Enterprise Linux. It is maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details.
+.PP
iptables\-apply will try to apply a new rulesfile (as output by
iptables-save, read by iptables-restore) or run a command to configure
iptables and then prompt the user whether the changes are okay. If the
@@ -47,7 +59,7 @@ Display usage information.
Display version information.
.SH "SEE ALSO"
.PP
-\fBiptables-restore\fP(8), \fBiptables-save\fP(8), \fBiptables\fR(8).
+\fBiptables-restore\fP(8), \fBiptables-save\fP(8), \fBiptables\fR(8), \fBnft\fP(8).
.SH LEGALESE
.PP
Original iptables-apply - Copyright 2006 Martin F. Krafft <madduck@madduck.net>.
diff --git a/iptables/iptables-extensions.8.tmpl.in b/iptables/iptables-extensions.8.tmpl.in
index 99d89a1..73d40bb 100644
--- a/iptables/iptables-extensions.8.tmpl.in
+++ b/iptables/iptables-extensions.8.tmpl.in
@@ -7,6 +7,20 @@ iptables-extensions \(em list of extensions in the standard iptables distributio
.PP
\fBiptables\fP [\fB\-m\fP \fIname\fP [\fImodule-options\fP...]]
[\fB\-j\fP \fItarget-name\fP [\fItarget-options\fP...]
+.SH DESCRIPTION
+These tools are
+.B deprecated
+in Red Hat Enterprise Linux. They are maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details. There is also
+.BR iptables\-translate (8)/ ip6tables\-translate (8)
+to help with the migration.
.SH MATCH EXTENSIONS
iptables can use extended packet matching modules
with the \fB\-m\fP or \fB\-\-match\fP
diff --git a/iptables/iptables-restore.8.in b/iptables/iptables-restore.8.in
index aa816f7..353d4dc 100644
--- a/iptables/iptables-restore.8.in
+++ b/iptables/iptables-restore.8.in
@@ -31,6 +31,19 @@ ip6tables-restore \(em Restore IPv6 Tables
[\fB\-M\fP \fImodprobe\fP] [\fB\-T\fP \fIname\fP]
[\fIfile\fP]
.SH DESCRIPTION
+These tools are
+.B deprecated
+in Red Hat Enterprise Linux. They are maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details. There is also
+.BR iptables\-restore\-translate (8)/ ip6tables\-restore\-translate (8)
+to help with the migration.
.PP
.B iptables-restore
and
@@ -82,7 +95,9 @@ from Rusty Russell.
.br
Andras Kis-Szabo <kisza@sch.bme.hu> contributed ip6tables-restore.
.SH SEE ALSO
-\fBiptables\-apply\fP(8), \fBiptables\-save\fP(8), \fBiptables\fP(8)
+\fBiptables\-apply\fP(8), \fBiptables\-save\fP(8), \fBiptables\fP(8),
+\fBnft\fP(8), \fBiptables\-restore\-translate\fP(8),
+\fBip6tables\-restore\-translate\fP(8)
.PP
The iptables-HOWTO, which details more iptables usage, the NAT-HOWTO,
which details NAT, and the netfilter-hacking-HOWTO which details the
diff --git a/iptables/iptables-save.8.in b/iptables/iptables-save.8.in
index 65c1f28..d47be27 100644
--- a/iptables/iptables-save.8.in
+++ b/iptables/iptables-save.8.in
@@ -30,6 +30,18 @@ ip6tables-save \(em dump iptables rules
[\fB\-t\fP \fItable\fP] [\fB\-f\fP \fIfilename\fP]
.SH DESCRIPTION
.PP
+These tools are
+.B deprecated
+in Red Hat Enterprise Linux. They are maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details.
+.PP
.B iptables-save
and
.B ip6tables-save
@@ -66,7 +78,8 @@ Rusty Russell <rusty@rustcorp.com.au>
.br
Andras Kis-Szabo <kisza@sch.bme.hu> contributed ip6tables-save.
.SH SEE ALSO
-\fBiptables\-apply\fP(8), \fBiptables\-restore\fP(8), \fBiptables\fP(8)
+\fBiptables\-apply\fP(8), \fBiptables\-restore\fP(8), \fBiptables\fP(8),
+\fBnft\fP(8)
.PP
The iptables-HOWTO, which details more iptables usage, the NAT-HOWTO,
which details NAT, and the netfilter-hacking-HOWTO which details the
diff --git a/iptables/iptables.8.in b/iptables/iptables.8.in
index ecaa555..4c4a15a 100644
--- a/iptables/iptables.8.in
+++ b/iptables/iptables.8.in
@@ -55,6 +55,20 @@ match = \fB\-m\fP \fImatchname\fP [\fIper-match-options\fP]
.PP
target = \fB\-j\fP \fItargetname\fP [\fIper\-target\-options\fP]
.SH DESCRIPTION
+These tools are
+.B deprecated
+in Red Hat Enterprise Linux. They are maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details. There is also
+.BR iptables\-translate (8)/ ip6tables\-translate (8)
+to help with the migration.
+.PP
\fBIptables\fP and \fBip6tables\fP are used to set up, maintain, and inspect the
tables of IPv4 and IPv6 packet
filter rules in the Linux kernel. Several different tables
@@ -455,6 +469,9 @@ There are several other changes in iptables.
\fBiptables\-save\fP(8),
\fBiptables\-restore\fP(8),
\fBiptables\-extensions\fP(8),
+\fBnft\fP(8),
+\fBiptables\-translate\fP(8),
+\fBip6tables\-translate\fP(8)
.PP
The packet-filtering-HOWTO details iptables usage for
packet filtering, the NAT-HOWTO details NAT,
diff --git a/iptables/xtables-monitor.8.in b/iptables/xtables-monitor.8.in
index a7f22c0..e21d7ff 100644
--- a/iptables/xtables-monitor.8.in
+++ b/iptables/xtables-monitor.8.in
@@ -6,6 +6,17 @@ xtables-monitor \(em show changes to rule set and trace-events
.PP
\
.SH DESCRIPTION
+This tool is
+.B deprecated
+in Red Hat Enterprise Linux. It is maintenance only and will not receive new
+features. New setups should use
+.BR nft (8).
+Existing setups should migrate to
+.BR nft (8)
+when possible. See
+.UR https://red.ht/nft_your_tables
+.UE
+for details.
.PP
.B xtables-monitor
is used to monitor changes to the ruleset or to show rule evaluation events

28
SOURCES/0002-extensions-SECMARK-Use-a-better-context-in-test-case.patch
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From 4388fad6c3874a3861907734f9a6368cfd0a731c Mon Sep 17 00:00:00 2001
From: Phil Sutter <psutter@redhat.com>
Date: Fri, 16 Jul 2021 21:51:49 +0200
Subject: [PATCH] extensions: SECMARK: Use a better context in test case
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2047558
Upstream Status: RHEL-only
RHEL SELinux policies don't allow setting
system_u:object_r:firewalld_exec_t:s0 context. Use one instead which has
'packet_type' attribute (identified via
'seinfo -xt | grep packet_type').
Signed-off-by: Phil Sutter <psutter@redhat.com>
---
extensions/libxt_SECMARK.t | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/extensions/libxt_SECMARK.t b/extensions/libxt_SECMARK.t
index 39d4c09..295e7a7 100644
--- a/extensions/libxt_SECMARK.t
+++ b/extensions/libxt_SECMARK.t
@@ -1,4 +1,4 @@
:INPUT,FORWARD,OUTPUT
*security
--j SECMARK --selctx system_u:object_r:firewalld_exec_t:s0;=;OK
+-j SECMARK --selctx system_u:object_r:ssh_server_packet_t:s0;=;OK
-j SECMARK;;FAIL

73
SOURCES/0003-ebtables-Fix-corner-case-noflush-restore-bug.patch
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From 7a8231504928a4ad7a2229d0f8a27d9734159647 Mon Sep 17 00:00:00 2001
From: Phil Sutter <psutter@redhat.com>
Date: Tue, 7 Nov 2023 23:44:55 +0100
Subject: [PATCH] ebtables: Fix corner-case noflush restore bug
JIRA: https://issues.redhat.com/browse/RHEL-14147
Upstream Status: iptables commit c1083acea70787eea3f7929fd04718434bb05ba8
commit c1083acea70787eea3f7929fd04718434bb05ba8
Author: Phil Sutter <phil@nwl.cc>
Date: Tue Nov 7 19:12:14 2023 +0100
ebtables: Fix corner-case noflush restore bug
Report came from firwalld, but this is actually rather hard to trigger.
Since a regular chain line prevents it, typical dump/restore use-cases
are unaffected.
Fixes: 73611d5582e72 ("ebtables-nft: add broute table emulation")
Cc: Eric Garver <eric@garver.life>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Phil Sutter <psutter@redhat.com>
---
.../testcases/ebtables/0009-broute-bug_0 | 25 +++++++++++++++++++
iptables/xtables-eb.c | 2 ++
2 files changed, 27 insertions(+)
create mode 100755 iptables/tests/shell/testcases/ebtables/0009-broute-bug_0
diff --git a/iptables/tests/shell/testcases/ebtables/0009-broute-bug_0 b/iptables/tests/shell/testcases/ebtables/0009-broute-bug_0
new file mode 100755
index 0000000..0def0ac
--- /dev/null
+++ b/iptables/tests/shell/testcases/ebtables/0009-broute-bug_0
@@ -0,0 +1,25 @@
+#!/bin/sh
+#
+# Missing BROUTING-awareness in ebt_get_current_chain() caused an odd caching bug when restoring:
+# - with --noflush
+# - a second table after the broute one
+# - A policy command but no chain line for BROUTING chain
+
+set -e
+
+case "$XT_MULTI" in
+*xtables-nft-multi)
+ ;;
+*)
+ echo "skip $XT_MULTI"
+ exit 0
+ ;;
+esac
+
+$XT_MULTI ebtables-restore --noflush <<EOF
+*broute
+-P BROUTING ACCEPT
+*nat
+-P PREROUTING ACCEPT
+COMMIT
+EOF
diff --git a/iptables/xtables-eb.c b/iptables/xtables-eb.c
index 08eec79..a8ad57c 100644
--- a/iptables/xtables-eb.c
+++ b/iptables/xtables-eb.c
@@ -169,6 +169,8 @@ int ebt_get_current_chain(const char *chain)
return NF_BR_LOCAL_OUT;
else if (strcmp(chain, "POSTROUTING") == 0)
return NF_BR_POST_ROUTING;
+ else if (strcmp(chain, "BROUTING") == 0)
+ return NF_BR_BROUTING;
/* placeholder for user defined chain */
return NF_BR_NUMHOOKS;

73
SOURCES/arptables-nft-helper
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#!/bin/sh
ARPTABLES_CONFIG=/etc/sysconfig/arptables
# compat for removed initscripts dependency
success() {
echo "[ OK ]"
return 0
}
failure() {
echo "[FAILED]"
return 1
}
start() {
if [ ! -x /usr/sbin/arptables ]; then
exit 4
fi
# don't do squat if we don't have the config file
if [ -f $ARPTABLES_CONFIG ]; then
printf "Applying arptables firewall rules: "
/usr/sbin/arptables-restore < $ARPTABLES_CONFIG && \
success || \
failure
touch /var/lock/subsys/arptables
else
failure
echo "Configuration file /etc/sysconfig/arptables missing"
exit 6
fi
}
stop() {
printf "Removing user defined chains: "
arptables -X && success || failure
printf "Flushing all chains: "
arptables -F && success || failure
printf "Resetting built-in chains to the default ACCEPT policy: "
arptables -P INPUT ACCEPT && \
arptables -P OUTPUT ACCEPT && \
success || \
failure
rm -f /var/lock/subsys/arptables
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload)
# "restart" is really just "start" as this isn't a daemon,
# and "start" clears any pre-defined rules anyway.
# This is really only here to make those who expect it happy
start
;;
condrestart|try-restart|force-reload)
[ -e /var/lock/subsys/arptables ] && start
;;
*)
exit 2
esac
exit 0

12
SOURCES/arptables.service
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[Unit]
Description=Automates a packet filtering firewall with arptables
After=network.target
[Service]
Type=oneshot
ExecStart=/usr/libexec/arptables-helper start
ExecStop=/usr/libexec/arptables-helper stop
RemainAfterExit=yes
[Install]
WantedBy=multi-user.target

11
SOURCES/ebtables-config
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# Save current firewall rules on stop.
# Value: yes|no, default: no
# Saves all firewall rules if firewall gets stopped
# (e.g. on system shutdown).
EBTABLES_SAVE_ON_STOP="no"
# Save (and restore) rule counters.
# Value: yes|no, default: no
# Save rule counters when saving a kernel table to a file. If the
# rule counters were saved, they will be restored when restoring the table.
EBTABLES_SAVE_COUNTER="no"

104
SOURCES/ebtables-helper
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#!/bin/bash
# compat for removed initscripts dependency
success() {
echo "[ OK ]"
return 0
}
failure() {
echo "[FAILED]"
return 1
}
# internal variables
EBTABLES_CONFIG=/etc/sysconfig/ebtables-config
EBTABLES_DATA=/etc/sysconfig/ebtables
EBTABLES_TABLES="filter nat"
if ebtables --version | grep -q '(legacy)'; then
EBTABLES_TABLES+=" broute"
fi
VAR_SUBSYS_EBTABLES=/var/lock/subsys/ebtables
# ebtables-config defaults
EBTABLES_SAVE_ON_STOP="no"
EBTABLES_SAVE_COUNTER="no"
# load config if existing
[ -f "$EBTABLES_CONFIG" ] && . "$EBTABLES_CONFIG"
initialize() {
local ret=0
for table in $EBTABLES_TABLES; do
ebtables -t $table --init-table || ret=1
done
return $ret
}
sanitize_dump() {
local drop=false
export EBTABLES_TABLES
cat $1 | while read line; do
case $line in
\**)
drop=false
local table="${line#\*}"
local found=false
for t in $EBTABLES_TABLES; do
if [[ $t == "$table" ]]; then
found=true
break
fi
done
$found || drop=true
;;
esac
$drop || echo "$line"
done
}
start() {
if [ -f $EBTABLES_DATA ]; then
echo -n $"ebtables: loading ruleset from $EBTABLES_DATA: "
sanitize_dump $EBTABLES_DATA | ebtables-restore
else
echo -n $"ebtables: no stored ruleset, initializing empty tables: "
initialize
fi
local ret=$?
touch $VAR_SUBSYS_EBTABLES
return $ret
}
save() {
echo -n $"ebtables: saving active ruleset to $EBTABLES_DATA: "
export EBTABLES_SAVE_COUNTER
ebtables-save >$EBTABLES_DATA && success || failure
}
case $1 in
start)
[ -f "$VAR_SUBSYS_EBTABLES" ] && exit 0
start && success || failure
RETVAL=$?
;;
stop)
[ "x$EBTABLES_SAVE_ON_STOP" = "xyes" ] && save
echo -n $"ebtables: stopping firewall: "
initialize && success || failure
RETVAL=$?
rm -f $VAR_SUBSYS_EBTABLES
;;
save)
save
;;
*)
echo "usage: ${0##*/} {start|stop|save}" >&2
RETVAL=2
;;
esac
exit $RETVAL

11
SOURCES/ebtables.service
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[Unit]
Description=Ethernet Bridge Filtering tables
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/libexec/ebtables-helper start
ExecStop=/usr/libexec/ebtables-helper stop
[Install]
WantedBy=multi-user.target

59
SOURCES/iptables-config
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# Load additional iptables modules (nat helpers)
# Default: -none-
# Space separated list of nat helpers (e.g. 'ip_nat_ftp ip_nat_irc'), which
# are loaded after the firewall rules are applied. Options for the helpers are
# stored in /etc/modprobe.conf.
IPTABLES_MODULES=""
# Save current firewall rules on stop.
# Value: yes|no, default: no
# Saves all firewall rules to /etc/sysconfig/iptables if firewall gets stopped
# (e.g. on system shutdown).
IPTABLES_SAVE_ON_STOP="no"
# Save current firewall rules on restart.
# Value: yes|no, default: no
# Saves all firewall rules to /etc/sysconfig/iptables if firewall gets
# restarted.
IPTABLES_SAVE_ON_RESTART="no"
# Save (and restore) rule and chain counter.
# Value: yes|no, default: no
# Save counters for rules and chains to /etc/sysconfig/iptables if
# 'service iptables save' is called or on stop or restart if SAVE_ON_STOP or
# SAVE_ON_RESTART is enabled.
IPTABLES_SAVE_COUNTER="no"
# Numeric status output
# Value: yes|no, default: yes
# Print IP addresses and port numbers in numeric format in the status output.
IPTABLES_STATUS_NUMERIC="yes"
# Verbose status output
# Value: yes|no, default: yes
# Print info about the number of packets and bytes plus the "input-" and
# "outputdevice" in the status output.
IPTABLES_STATUS_VERBOSE="no"
# Status output with numbered lines
# Value: yes|no, default: yes
# Print a counter/number for every rule in the status output.
IPTABLES_STATUS_LINENUMBERS="yes"
# Reload sysctl settings on start and restart
# Default: -none-
# Space separated list of sysctl items which are to be reloaded on start.
# List items will be matched by fgrep.
#IPTABLES_SYSCTL_LOAD_LIST=".nf_conntrack .bridge-nf"
# Set wait option for iptables-restore calls in seconds
# Default: 600
# Set to 0 to deactivate the wait.
#IPTABLES_RESTORE_WAIT=600
# Set wait interval option for iptables-restore calls in microseconds
# Default: 1000000
# Set to 100000 to try to get the lock every 100000 microseconds, 10 times a
# second.
# Only usable with IPTABLES_RESTORE_WAIT > 0
#IPTABLES_RESTORE_WAIT_INTERVAL=1000000

35
SOURCES/iptables-test.stderr.expect
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extensions/libip6t_srh.t: ERROR: line 2 (cannot load: ip6tables -A INPUT -m srh --srh-next-hdr 17)
extensions/libip6t_srh.t: ERROR: line 3 (cannot load: ip6tables -A INPUT -m srh --srh-hdr-len-eq 8)
extensions/libip6t_srh.t: ERROR: line 4 (cannot load: ip6tables -A INPUT -m srh --srh-hdr-len-gt 8)
extensions/libip6t_srh.t: ERROR: line 5 (cannot load: ip6tables -A INPUT -m srh --srh-hdr-len-lt 8)
extensions/libip6t_srh.t: ERROR: line 6 (cannot load: ip6tables -A INPUT -m srh --srh-segs-left-eq 1)
extensions/libip6t_srh.t: ERROR: line 7 (cannot load: ip6tables -A INPUT -m srh --srh-segs-left-gt 1)
extensions/libip6t_srh.t: ERROR: line 8 (cannot load: ip6tables -A INPUT -m srh --srh-segs-left-lt 1)
extensions/libip6t_srh.t: ERROR: line 9 (cannot load: ip6tables -A INPUT -m srh --srh-last-entry-eq 4)
extensions/libip6t_srh.t: ERROR: line 10 (cannot load: ip6tables -A INPUT -m srh --srh-last-entry-gt 4)
extensions/libip6t_srh.t: ERROR: line 11 (cannot load: ip6tables -A INPUT -m srh --srh-last-entry-lt 4)
extensions/libip6t_srh.t: ERROR: line 12 (cannot load: ip6tables -A INPUT -m srh --srh-tag 0)
extensions/libip6t_srh.t: ERROR: line 13 (cannot load: ip6tables -A INPUT -m srh ! --srh-next-hdr 17)
extensions/libip6t_srh.t: ERROR: line 14 (cannot load: ip6tables -A INPUT -m srh ! --srh-hdr-len-eq 8)
extensions/libip6t_srh.t: ERROR: line 15 (cannot load: ip6tables -A INPUT -m srh ! --srh-hdr-len-gt 8)
extensions/libip6t_srh.t: ERROR: line 16 (cannot load: ip6tables -A INPUT -m srh ! --srh-hdr-len-lt 8)
extensions/libip6t_srh.t: ERROR: line 17 (cannot load: ip6tables -A INPUT -m srh ! --srh-segs-left-eq 1)
extensions/libip6t_srh.t: ERROR: line 18 (cannot load: ip6tables -A INPUT -m srh ! --srh-segs-left-gt 1)
extensions/libip6t_srh.t: ERROR: line 19 (cannot load: ip6tables -A INPUT -m srh ! --srh-segs-left-lt 1)
extensions/libip6t_srh.t: ERROR: line 20 (cannot load: ip6tables -A INPUT -m srh ! --srh-last-entry-eq 4)
extensions/libip6t_srh.t: ERROR: line 21 (cannot load: ip6tables -A INPUT -m srh ! --srh-last-entry-gt 4)
extensions/libip6t_srh.t: ERROR: line 22 (cannot load: ip6tables -A INPUT -m srh ! --srh-last-entry-lt 4)
extensions/libip6t_srh.t: ERROR: line 23 (cannot load: ip6tables -A INPUT -m srh ! --srh-tag 0)
extensions/libip6t_srh.t: ERROR: line 24 (cannot load: ip6tables -A INPUT -m srh --srh-next-hdr 17 --srh-segs-left-eq 1 --srh-last-entry-eq 4 --srh-tag 0)
extensions/libip6t_srh.t: ERROR: line 25 (cannot load: ip6tables -A INPUT -m srh ! --srh-next-hdr 17 ! --srh-segs-left-eq 0 --srh-tag 0)
extensions/libip6t_srh.t: ERROR: line 26 (cannot load: ip6tables -A INPUT -m srh --srh-psid a::/64 --srh-nsid b::/128 --srh-lsid c::/0)
extensions/libip6t_srh.t: ERROR: line 27 (cannot load: ip6tables -A INPUT -m srh ! --srh-psid a::/64 ! --srh-nsid b::/128 ! --srh-lsid c::/0)
extensions/libip6t_srh.t: ERROR: line 28 (cannot load: ip6tables -A INPUT -m srh)
extensions/libxt_LED.t: ERROR: line 3 (cannot load: iptables -A INPUT -j LED --led-trigger-id "foo")
extensions/libxt_LED.t: ERROR: line 4 (cannot load: iptables -A INPUT -j LED --led-trigger-id "foo" --led-delay 42 --led-always-blink)
extensions/libxt_ipcomp.t: ERROR: line 2 (cannot load: iptables -A INPUT -p ipcomp -m ipcomp --ipcompspi 18 -j DROP)
extensions/libxt_ipcomp.t: ERROR: line 3 (cannot load: iptables -A INPUT -p ipcomp -m ipcomp ! --ipcompspi 18 -j ACCEPT)
extensions/libxt_time.t: ERROR: line 2 (cannot load: iptables -A INPUT -m time --timestart 01:02:03 --timestop 04:05:06 --monthdays 1,2,3,4,5 --weekdays Mon,Fri,Sun --datestart 2001-02-03T04:05:06 --datestop 2012-09-08T09:06:05 --kerneltz)
extensions/libxt_time.t: ERROR: line 3 (cannot load: iptables -A INPUT -m time --timestart 01:02:03 --timestop 04:05:06 --monthdays 1,2,3,4,5 --weekdays Mon,Fri,Sun --datestart 2001-02-03T04:05:06 --datestop 2012-09-08T09:06:05)
extensions/libxt_time.t: ERROR: line 4 (cannot load: iptables -A INPUT -m time --timestart 02:00:00 --timestop 03:00:00 --datestart 1970-01-01T02:00:00 --datestop 1970-01-01T03:00:00)
extensions/libxt_u32.t: ERROR: line 2 (cannot load: iptables -A INPUT -m u32 --u32 "0x0=0x0&&0x0=0x1")

450
SOURCES/iptables.init
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#!/bin/bash
#
# iptables Start iptables firewall
#
# chkconfig: 2345 08 92
# description: Starts, stops and saves iptables firewall
#
# config: /etc/sysconfig/iptables
# config: /etc/sysconfig/iptables-config
#
### BEGIN INIT INFO
# Provides: iptables
# Required-Start:
# Required-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start and stop iptables firewall
# Description: Start, stop and save iptables firewall
### END INIT INFO
# compat for removed initscripts dependency
success() {
echo -n "[ OK ]"
return 0
}
warning() {
echo -n "[WARNING]"
return 1
}
failure() {
echo -n "[FAILED]"
return 1
}
IPTABLES=iptables
IPTABLES_DATA=/etc/sysconfig/$IPTABLES
IPTABLES_FALLBACK_DATA=${IPTABLES_DATA}.fallback
IPTABLES_CONFIG=/etc/sysconfig/${IPTABLES}-config
IPV=${IPTABLES%tables} # ip for ipv4 | ip6 for ipv6
[ "$IPV" = "ip" ] && _IPV="ipv4" || _IPV="ipv6"
PROC_IPTABLES_NAMES=/proc/net/${IPV}_tables_names
VAR_SUBSYS_IPTABLES=/var/lock/subsys/$IPTABLES
# only usable for root
if [ $EUID != 0 ]; then
echo -n $"${IPTABLES}: Only usable by root."; warning; echo
exit 4
fi
if [ ! -x /sbin/$IPTABLES ]; then
echo -n $"${IPTABLES}: /sbin/$IPTABLES does not exist."; warning; echo
exit 5
fi
# Default firewall configuration:
IPTABLES_MODULES=""
IPTABLES_SAVE_ON_STOP="no"
IPTABLES_SAVE_ON_RESTART="no"
IPTABLES_SAVE_COUNTER="no"
IPTABLES_STATUS_NUMERIC="yes"
IPTABLES_STATUS_VERBOSE="no"
IPTABLES_STATUS_LINENUMBERS="yes"
IPTABLES_SYSCTL_LOAD_LIST=""
IPTABLES_RESTORE_WAIT=600
IPTABLES_RESTORE_WAIT_INTERVAL=1000000
# Load firewall configuration.
[ -f "$IPTABLES_CONFIG" ] && . "$IPTABLES_CONFIG"
is_iptables_nft() {
iptables --version | grep -q '(nf_tables)'
}
netfilter_active() {
is_iptables_nft && return 0
[ -e "$PROC_IPTABLES_NAMES" ]
}
netfilter_tables() {
netfilter_active || return 1
is_iptables_nft && {
# explicitly omit security table from this list as
# it should be reserved for SELinux use
echo "raw mangle filter nat"
return 0
}
cat "$PROC_IPTABLES_NAMES" 2>/dev/null
}
# Get active tables
NF_TABLES=$(netfilter_tables)
flush_n_delete() {
# Flush firewall rules and delete chains.
netfilter_active || return 0
# Check if firewall is configured (has tables)
[ -z "$NF_TABLES" ] && return 1
echo -n $"${IPTABLES}: Flushing firewall rules: "
ret=0
# For all tables
for i in $NF_TABLES; do
# Flush firewall rules.
$IPTABLES -t $i -F;
let ret+=$?;
# Delete firewall chains.
$IPTABLES -t $i -X;
let ret+=$?;
# Set counter to zero.
$IPTABLES -t $i -Z;
let ret+=$?;
done
[ $ret -eq 0 ] && success || failure
echo
return $ret
}
set_policy() {
# Set policy for configured tables.
policy=$1
# Check if iptable module is loaded
netfilter_active || return 0
# Check if firewall is configured (has tables)
tables=$(netfilter_tables)
[ -z "$tables" ] && return 1
echo -n $"${IPTABLES}: Setting chains to policy $policy: "
ret=0
for i in $tables; do
echo -n "$i "
case "$i" in
raw)
$IPTABLES -t raw -P PREROUTING $policy \
&& $IPTABLES -t raw -P OUTPUT $policy \
|| let ret+=1
;;
filter)
$IPTABLES -t filter -P INPUT $policy \
&& $IPTABLES -t filter -P OUTPUT $policy \
&& $IPTABLES -t filter -P FORWARD $policy \
|| let ret+=1
;;
nat)
$IPTABLES -t nat -P PREROUTING $policy \
&& $IPTABLES -t nat -P POSTROUTING $policy \
&& $IPTABLES -t nat -P OUTPUT $policy \
|| let ret+=1
;;
mangle)
$IPTABLES -t mangle -P PREROUTING $policy \
&& $IPTABLES -t mangle -P POSTROUTING $policy \
&& $IPTABLES -t mangle -P INPUT $policy \
&& $IPTABLES -t mangle -P OUTPUT $policy \
&& $IPTABLES -t mangle -P FORWARD $policy \
|| let ret+=1
;;
*)
let ret+=1
;;
esac
done
[ $ret -eq 0 ] && success || failure
echo
return $ret
}
load_sysctl() {
# load matched sysctl values
if [ -n "$IPTABLES_SYSCTL_LOAD_LIST" ]; then
echo -n $"Loading sysctl settings: "
ret=0
for item in $IPTABLES_SYSCTL_LOAD_LIST; do
fgrep -hs $item /etc/sysctl.d/*.conf | sysctl -p - >/dev/null
let ret+=$?;
done
[ $ret -eq 0 ] && success || failure
echo
fi
return $ret
}
start() {
# Do not start if there is no config file.
if [ ! -f "$IPTABLES_DATA" ]; then
echo -n $"${IPTABLES}: No config file."; warning; echo
return 6
fi
# check if ipv6 module load is deactivated
if [ "${_IPV}" = "ipv6" ] \
&& grep -qIsE "^install[[:space:]]+${_IPV}[[:space:]]+/bin/(true|false)" /etc/modprobe.conf /etc/modprobe.d/* ; then
echo $"${IPTABLES}: ${_IPV} is disabled."
return 150
fi
echo -n $"${IPTABLES}: Applying firewall rules: "
OPT=
[ "x$IPTABLES_SAVE_COUNTER" = "xyes" ] && OPT="-c"
if [ $IPTABLES_RESTORE_WAIT -ne 0 ]; then
OPT="${OPT} --wait ${IPTABLES_RESTORE_WAIT}"
if [ $IPTABLES_RESTORE_WAIT_INTERVAL -lt 1000000 ]; then
OPT="${OPT} --wait-interval ${IPTABLES_RESTORE_WAIT_INTERVAL}"
fi
fi
$IPTABLES-restore $OPT $IPTABLES_DATA
if [ $? -eq 0 ]; then
success; echo
else
failure; echo;
if [ -f "$IPTABLES_FALLBACK_DATA" ]; then
echo -n $"${IPTABLES}: Applying firewall fallback rules: "
$IPTABLES-restore $OPT $IPTABLES_FALLBACK_DATA
if [ $? -eq 0 ]; then
success; echo
else
failure; echo; return 1
fi
else
return 1
fi
fi
# Load additional modules (helpers)
if [ -n "$IPTABLES_MODULES" ]; then
echo -n $"${IPTABLES}: Loading additional modules: "
ret=0
for mod in $IPTABLES_MODULES; do
echo -n "$mod "
modprobe $mod > /dev/null 2>&1
let ret+=$?;
done
[ $ret -eq 0 ] && success || failure
echo
fi
# Load sysctl settings
load_sysctl
touch $VAR_SUBSYS_IPTABLES
return $ret
}
stop() {
# Do not stop if iptables module is not loaded.
netfilter_active || return 0
# Set default chain policy to ACCEPT, in order to not break shutdown
# on systems where the default policy is DROP and root device is
# network-based (i.e.: iSCSI, NFS)
set_policy ACCEPT
# And then, flush the rules and delete chains
flush_n_delete
rm -f $VAR_SUBSYS_IPTABLES
return $ret
}
save() {
# Check if iptable module is loaded
if ! netfilter_active; then
echo -n $"${IPTABLES}: Nothing to save."; warning; echo
return 0
fi
# Check if firewall is configured (has tables)
if [ -z "$NF_TABLES" ]; then
echo -n $"${IPTABLES}: Nothing to save."; warning; echo
return 6
fi
echo -n $"${IPTABLES}: Saving firewall rules to $IPTABLES_DATA: "
OPT=
[ "x$IPTABLES_SAVE_COUNTER" = "xyes" ] && OPT="-c"
ret=0
TMP_FILE=$(/bin/mktemp -q $IPTABLES_DATA.XXXXXX) \
&& chmod 600 "$TMP_FILE" \
&& $IPTABLES-save $OPT > $TMP_FILE 2>/dev/null \
&& size=$(stat -c '%s' $TMP_FILE) && [ $size -gt 0 ] \
|| ret=1
if [ $ret -eq 0 ]; then
if [ -e $IPTABLES_DATA ]; then
cp -f $IPTABLES_DATA $IPTABLES_DATA.save \
&& chmod 600 $IPTABLES_DATA.save \
&& restorecon $IPTABLES_DATA.save \
|| ret=1
fi
if [ $ret -eq 0 ]; then
mv -f $TMP_FILE $IPTABLES_DATA \
&& chmod 600 $IPTABLES_DATA \
&& restorecon $IPTABLES_DATA \
|| ret=1
fi
fi
rm -f $TMP_FILE
[ $ret -eq 0 ] && success || failure
echo
return $ret
}
status() {
if [ ! -f "$VAR_SUBSYS_IPTABLES" ]; then
echo $"${IPTABLES}: Firewall is not running."
return 3
fi
# Do not print status if lockfile is missing and iptables modules are not
# loaded.
# Check if iptable modules are loaded
if ! netfilter_active; then
echo $"${IPTABLES}: Firewall modules are not loaded."
return 3
fi
# Check if firewall is configured (has tables)
if [ -z "$NF_TABLES" ]; then
echo $"${IPTABLES}: Firewall is not configured. "
return 3
fi
NUM=
[ "x$IPTABLES_STATUS_NUMERIC" = "xyes" ] && NUM="-n"
VERBOSE=
[ "x$IPTABLES_STATUS_VERBOSE" = "xyes" ] && VERBOSE="--verbose"
COUNT=
[ "x$IPTABLES_STATUS_LINENUMBERS" = "xyes" ] && COUNT="--line-numbers"
for table in $NF_TABLES; do
echo $"Table: $table"
$IPTABLES -t $table --list $NUM $VERBOSE $COUNT && echo
done
return 0
}
reload() {
# Do not reload if there is no config file.
if [ ! -f "$IPTABLES_DATA" ]; then
echo -n $"${IPTABLES}: No config file."; warning; echo
return 6
fi
# check if ipv6 module load is deactivated
if [ "${_IPV}" = "ipv6" ] \
&& grep -qIsE "^install[[:space:]]+${_IPV}[[:space:]]+/bin/(true|false)" /etc/modprobe.conf /etc/modprobe.d/* ; then
echo $"${IPTABLES}: ${_IPV} is disabled."
return 150
fi
echo -n $"${IPTABLES}: Trying to reload firewall rules: "
OPT=
[ "x$IPTABLES_SAVE_COUNTER" = "xyes" ] && OPT="-c"
if [ $IPTABLES_RESTORE_WAIT -ne 0 ]; then
OPT="${OPT} --wait ${IPTABLES_RESTORE_WAIT}"
if [ $IPTABLES_RESTORE_WAIT_INTERVAL -lt 1000000 ]; then
OPT="${OPT} --wait-interval ${IPTABLES_RESTORE_WAIT_INTERVAL}"
fi
fi
$IPTABLES-restore $OPT $IPTABLES_DATA
if [ $? -eq 0 ]; then
success; echo
else
failure; echo; echo "Firewall rules are not changed."; return 1
fi
# Load additional modules (helpers)
if [ -n "$IPTABLES_MODULES" ]; then
echo -n $"${IPTABLES}: Loading additional modules: "
ret=0
for mod in $IPTABLES_MODULES; do
echo -n "$mod "
modprobe $mod > /dev/null 2>&1
let ret+=$?;
done
[ $ret -eq 0 ] && success || failure
echo
fi
# Load sysctl settings
load_sysctl
return $ret
}
restart() {
[ "x$IPTABLES_SAVE_ON_RESTART" = "xyes" ] && save
stop
start
}
case "$1" in
start)
[ -f "$VAR_SUBSYS_IPTABLES" ] && exit 0
start
RETVAL=$?
;;
stop)
[ "x$IPTABLES_SAVE_ON_STOP" = "xyes" ] && save
stop
RETVAL=$?
;;
restart|force-reload)
restart
RETVAL=$?
;;
reload)
[ -e "$VAR_SUBSYS_IPTABLES" ] && reload
RETVAL=$?
;;
condrestart|try-restart)
[ ! -e "$VAR_SUBSYS_IPTABLES" ] && exit 0
restart
RETVAL=$?
;;
status)
status
RETVAL=$?
;;
panic)
set_policy DROP
RETVAL=$?
;;
save)
save
RETVAL=$?
;;
*)
echo $"Usage: ${IPTABLES} {start|stop|reload|restart|condrestart|status|panic|save}"
RETVAL=2
;;
esac
exit $RETVAL

17
SOURCES/iptables.service
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[Unit]
Description=IPv4 firewall with iptables
AssertPathExists=/etc/sysconfig/iptables
Before=network-pre.target
Wants=network-pre.target
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/libexec/iptables/iptables.init start
ExecReload=/usr/libexec/iptables/iptables.init reload
ExecStop=/usr/libexec/iptables/iptables.init stop
Environment=BOOTUP=serial
Environment=CONSOLETYPE=serial
[Install]
WantedBy=multi-user.target

15
SOURCES/sysconfig_ip6tables
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# sample configuration for ip6tables service
# you can edit this manually or use system-config-firewall
# please do not ask us to add additional ports/services to this default configuration
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p ipv6-icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -d fe80::/64 -p udp -m udp --dport 546 -m state --state NEW -j ACCEPT
-A INPUT -j REJECT --reject-with icmp6-adm-prohibited
-A FORWARD -j REJECT --reject-with icmp6-adm-prohibited
COMMIT

14
SOURCES/sysconfig_iptables
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# sample configuration for iptables service
# you can edit this manually or use system-config-firewall
# please do not ask us to add additional ports/services to this default configuration
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT

1761
SPECS/iptables.spec
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