First commmit
This commit is contained in:
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commit
59e9a148cc
11
config/ip6tables
Normal file
11
config/ip6tables
Normal file
@ -0,0 +1,11 @@
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*filter
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:INPUT DROP [0:0]
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:FORWARD DROP [0:0]
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:OUTPUT ACCEPT [489:69759]
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-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
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-A INPUT -p ipv6-icmp -j ACCEPT
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-A INPUT -i lo -j ACCEPT
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-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
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-A INPUT -d fe80::/64 -p udp -m udp --dport 546 -m state --state NEW -j ACCEPT
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-A INPUT -j REJECT --reject-with icmp6-adm-prohibited
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COMMIT
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11
config/iptables
Normal file
11
config/iptables
Normal file
@ -0,0 +1,11 @@
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*filter
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:INPUT DROP [0:0]
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:FORWARD DROP [0:0]
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:OUTPUT ACCEPT [123:8421]
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-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
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-A INPUT -p icmp -j ACCEPT
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-A INPUT -i lo -j ACCEPT
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-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
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-A INPUT -j REJECT --reject-with icmp-host-prohibited
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-A FORWARD -j REJECT --reject-with icmp-host-prohibited
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COMMIT
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450
libexec/ip6tables.init
Executable file
450
libexec/ip6tables.init
Executable file
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#!/usr/bin/bash
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#
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# ip6tables Start ip6tables firewall
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#
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# chkconfig: 2345 08 92
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# description: Starts, stops and saves ip6tables firewall
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#
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# config: /etc/sysconfig/ip6tables
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# config: /etc/sysconfig/ip6tables-config
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#
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### BEGIN INIT INFO
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# Provides: ip6tables
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# Required-Start:
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# Required-Stop:
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: start and stop ip6tables firewall
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# Description: Start, stop and save ip6tables firewall
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### END INIT INFO
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# compat for removed initscripts dependency
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success() {
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echo -n "[ OK ]"
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return 0
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}
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warning() {
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echo -n "[WARNING]"
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return 1
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}
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failure() {
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echo -n "[FAILED]"
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return 1
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}
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IP6TABLES=ip6tables
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IP6TABLES_DATA=/etc/sysconfig/$IP6TABLES
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IP6TABLES_FALLBACK_DATA=${IP6TABLES_DATA}.fallback
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IP6TABLES_CONFIG=/etc/sysconfig/${IP6TABLES}-config
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IPV=${IP6TABLES%tables} # ip for ipv4 | ip6 for ipv6
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[ "$IPV" = "ip" ] && _IPV="ipv4" || _IPV="ipv6"
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PROC_IP6TABLES_NAMES=/proc/net/${IPV}_tables_names
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VAR_SUBSYS_IP6TABLES=/var/lock/subsys/$IP6TABLES
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# only usable for root
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if [ $EUID != 0 ]; then
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echo -n $"${IP6TABLES}: Only usable by root."; warning; echo
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exit 4
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fi
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if [ ! -x /sbin/$IP6TABLES ]; then
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echo -n $"${IP6TABLES}: /sbin/$IP6TABLES does not exist."; warning; echo
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exit 5
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fi
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# Default firewall configuration:
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IP6TABLES_MODULES=""
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IP6TABLES_SAVE_ON_STOP="no"
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IP6TABLES_SAVE_ON_RESTART="no"
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IP6TABLES_SAVE_COUNTER="no"
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IP6TABLES_STATUS_NUMERIC="yes"
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IP6TABLES_STATUS_VERBOSE="no"
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IP6TABLES_STATUS_LINENUMBERS="yes"
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IP6TABLES_SYSCTL_LOAD_LIST=""
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IP6TABLES_RESTORE_WAIT=600
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IP6TABLES_RESTORE_WAIT_INTERVAL=1000000
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# Load firewall configuration.
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[ -f "$IP6TABLES_CONFIG" ] && . "$IP6TABLES_CONFIG"
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is_ip6tables_nft() {
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ip6tables --version | grep -q '(nf_tables)'
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}
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netfilter_active() {
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is_ip6tables_nft && return 0
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[ -e "$PROC_IP6TABLES_NAMES" ]
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}
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netfilter_tables() {
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netfilter_active || return 1
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is_ip6tables_nft && {
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# explicitly omit security table from this list as
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# it should be reserved for SELinux use
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echo "raw mangle filter nat"
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return 0
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}
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cat "$PROC_IP6TABLES_NAMES" 2>/dev/null
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}
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# Get active tables
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NF_TABLES=$(netfilter_tables)
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flush_n_delete() {
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# Flush firewall rules and delete chains.
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netfilter_active || return 0
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# Check if firewall is configured (has tables)
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[ -z "$NF_TABLES" ] && return 1
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echo -n $"${IP6TABLES}: Flushing firewall rules: "
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ret=0
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# For all tables
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for i in $NF_TABLES; do
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# Flush firewall rules.
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$IP6TABLES -t $i -F;
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let ret+=$?;
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# Delete firewall chains.
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$IP6TABLES -t $i -X;
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let ret+=$?;
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# Set counter to zero.
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$IP6TABLES -t $i -Z;
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let ret+=$?;
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done
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[ $ret -eq 0 ] && success || failure
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echo
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return $ret
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}
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set_policy() {
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# Set policy for configured tables.
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policy=$1
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# Check if iptable module is loaded
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netfilter_active || return 0
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# Check if firewall is configured (has tables)
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tables=$(netfilter_tables)
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[ -z "$tables" ] && return 1
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echo -n $"${IP6TABLES}: Setting chains to policy $policy: "
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ret=0
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for i in $tables; do
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echo -n "$i "
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case "$i" in
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raw)
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$IP6TABLES -t raw -P PREROUTING $policy \
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&& $IP6TABLES -t raw -P OUTPUT $policy \
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|| let ret+=1
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;;
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filter)
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$IP6TABLES -t filter -P INPUT $policy \
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&& $IP6TABLES -t filter -P OUTPUT $policy \
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&& $IP6TABLES -t filter -P FORWARD $policy \
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|| let ret+=1
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;;
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nat)
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$IP6TABLES -t nat -P PREROUTING $policy \
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&& $IP6TABLES -t nat -P POSTROUTING $policy \
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&& $IP6TABLES -t nat -P OUTPUT $policy \
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|| let ret+=1
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;;
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mangle)
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$IP6TABLES -t mangle -P PREROUTING $policy \
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&& $IP6TABLES -t mangle -P POSTROUTING $policy \
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&& $IP6TABLES -t mangle -P INPUT $policy \
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&& $IP6TABLES -t mangle -P OUTPUT $policy \
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&& $IP6TABLES -t mangle -P FORWARD $policy \
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|| let ret+=1
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;;
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*)
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let ret+=1
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;;
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esac
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done
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[ $ret -eq 0 ] && success || failure
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echo
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return $ret
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}
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load_sysctl() {
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# load matched sysctl values
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if [ -n "$IP6TABLES_SYSCTL_LOAD_LIST" ]; then
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echo -n $"Loading sysctl settings: "
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ret=0
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for item in $IP6TABLES_SYSCTL_LOAD_LIST; do
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fgrep -hs $item /etc/sysctl.d/*.conf | sysctl -p - >/dev/null
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let ret+=$?;
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done
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[ $ret -eq 0 ] && success || failure
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echo
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fi
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return $ret
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}
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start() {
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# Do not start if there is no config file.
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if [ ! -f "$IP6TABLES_DATA" ]; then
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echo -n $"${IP6TABLES}: No config file."; warning; echo
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return 6
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fi
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# check if ipv6 module load is deactivated
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if [ "${_IPV}" = "ipv6" ] \
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&& grep -qIsE "^install[[:space:]]+${_IPV}[[:space:]]+/bin/(true|false)" /etc/modprobe.conf /etc/modprobe.d/* ; then
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echo $"${IP6TABLES}: ${_IPV} is disabled."
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return 150
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fi
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echo -n $"${IP6TABLES}: Applying firewall rules: "
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OPT=
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[ "x$IP6TABLES_SAVE_COUNTER" = "xyes" ] && OPT="-c"
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if [ $IP6TABLES_RESTORE_WAIT -ne 0 ]; then
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OPT="${OPT} --wait ${IP6TABLES_RESTORE_WAIT}"
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if [ $IP6TABLES_RESTORE_WAIT_INTERVAL -lt 1000000 ]; then
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OPT="${OPT} --wait-interval ${IP6TABLES_RESTORE_WAIT_INTERVAL}"
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fi
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fi
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$IP6TABLES-restore $OPT $IP6TABLES_DATA
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if [ $? -eq 0 ]; then
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success; echo
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else
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failure; echo;
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if [ -f "$IP6TABLES_FALLBACK_DATA" ]; then
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echo -n $"${IP6TABLES}: Applying firewall fallback rules: "
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$IP6TABLES-restore $OPT $IP6TABLES_FALLBACK_DATA
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if [ $? -eq 0 ]; then
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success; echo
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else
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failure; echo; return 1
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fi
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else
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return 1
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fi
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fi
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# Load additional modules (helpers)
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if [ -n "$IP6TABLES_MODULES" ]; then
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echo -n $"${IP6TABLES}: Loading additional modules: "
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ret=0
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for mod in $IP6TABLES_MODULES; do
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echo -n "$mod "
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modprobe $mod > /dev/null 2>&1
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let ret+=$?;
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done
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[ $ret -eq 0 ] && success || failure
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echo
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fi
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# Load sysctl settings
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load_sysctl
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touch $VAR_SUBSYS_IP6TABLES
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return $ret
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}
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stop() {
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# Do not stop if ip6tables module is not loaded.
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netfilter_active || return 0
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# Set default chain policy to ACCEPT, in order to not break shutdown
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# on systems where the default policy is DROP and root device is
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# network-based (i.e.: iSCSI, NFS)
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set_policy ACCEPT
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# And then, flush the rules and delete chains
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flush_n_delete
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rm -f $VAR_SUBSYS_IP6TABLES
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return $ret
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}
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save() {
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# Check if iptable module is loaded
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if ! netfilter_active; then
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echo -n $"${IP6TABLES}: Nothing to save."; warning; echo
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return 0
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fi
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# Check if firewall is configured (has tables)
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if [ -z "$NF_TABLES" ]; then
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echo -n $"${IP6TABLES}: Nothing to save."; warning; echo
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return 6
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fi
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echo -n $"${IP6TABLES}: Saving firewall rules to $IP6TABLES_DATA: "
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OPT=
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[ "x$IP6TABLES_SAVE_COUNTER" = "xyes" ] && OPT="-c"
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ret=0
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TMP_FILE=$(/bin/mktemp -q $IP6TABLES_DATA.XXXXXX) \
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&& chmod 600 "$TMP_FILE" \
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&& $IP6TABLES-save $OPT > $TMP_FILE 2>/dev/null \
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&& size=$(stat -c '%s' $TMP_FILE) && [ $size -gt 0 ] \
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|| ret=1
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if [ $ret -eq 0 ]; then
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if [ -e $IP6TABLES_DATA ]; then
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cp -f $IP6TABLES_DATA $IP6TABLES_DATA.save \
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&& chmod 600 $IP6TABLES_DATA.save \
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&& restorecon $IP6TABLES_DATA.save \
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|| ret=1
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fi
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if [ $ret -eq 0 ]; then
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mv -f $TMP_FILE $IP6TABLES_DATA \
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&& chmod 600 $IP6TABLES_DATA \
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&& restorecon $IP6TABLES_DATA \
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|| ret=1
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fi
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fi
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rm -f $TMP_FILE
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[ $ret -eq 0 ] && success || failure
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echo
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return $ret
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||||
}
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status() {
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if [ ! -f "$VAR_SUBSYS_IP6TABLES" ]; then
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echo $"${IP6TABLES}: Firewall is not running."
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||||
return 3
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fi
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||||
# Do not print status if lockfile is missing and ip6tables modules are not
|
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# loaded.
|
||||
# Check if iptable modules are loaded
|
||||
if ! netfilter_active; then
|
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echo $"${IP6TABLES}: Firewall modules are not loaded."
|
||||
return 3
|
||||
fi
|
||||
|
||||
# Check if firewall is configured (has tables)
|
||||
if [ -z "$NF_TABLES" ]; then
|
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echo $"${IP6TABLES}: Firewall is not configured. "
|
||||
return 3
|
||||
fi
|
||||
|
||||
NUM=
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[ "x$IP6TABLES_STATUS_NUMERIC" = "xyes" ] && NUM="-n"
|
||||
VERBOSE=
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||||
[ "x$IP6TABLES_STATUS_VERBOSE" = "xyes" ] && VERBOSE="--verbose"
|
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COUNT=
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[ "x$IP6TABLES_STATUS_LINENUMBERS" = "xyes" ] && COUNT="--line-numbers"
|
||||
|
||||
for table in $NF_TABLES; do
|
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echo $"Table: $table"
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||||
$IP6TABLES -t $table --list $NUM $VERBOSE $COUNT && echo
|
||||
done
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
reload() {
|
||||
# Do not reload if there is no config file.
|
||||
if [ ! -f "$IP6TABLES_DATA" ]; then
|
||||
echo -n $"${IP6TABLES}: 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 $"${IP6TABLES}: ${_IPV} is disabled."
|
||||
return 150
|
||||
fi
|
||||
|
||||
echo -n $"${IP6TABLES}: Trying to reload firewall rules: "
|
||||
|
||||
OPT=
|
||||
[ "x$IP6TABLES_SAVE_COUNTER" = "xyes" ] && OPT="-c"
|
||||
if [ $IP6TABLES_RESTORE_WAIT -ne 0 ]; then
|
||||
OPT="${OPT} --wait ${IP6TABLES_RESTORE_WAIT}"
|
||||
if [ $IP6TABLES_RESTORE_WAIT_INTERVAL -lt 1000000 ]; then
|
||||
OPT="${OPT} --wait-interval ${IP6TABLES_RESTORE_WAIT_INTERVAL}"
|
||||
fi
|
||||
fi
|
||||
|
||||
$IP6TABLES-restore $OPT $IP6TABLES_DATA
|
||||
if [ $? -eq 0 ]; then
|
||||
success; echo
|
||||
else
|
||||
failure; echo; echo "Firewall rules are not changed."; return 1
|
||||
fi
|
||||
|
||||
# Load additional modules (helpers)
|
||||
if [ -n "$IP6TABLES_MODULES" ]; then
|
||||
echo -n $"${IP6TABLES}: Loading additional modules: "
|
||||
ret=0
|
||||
for mod in $IP6TABLES_MODULES; do
|
||||
echo -n "$mod "
|
||||
modprobe $mod > /dev/null 2>&1
|
||||
let ret+=$?;
|
||||
done
|
||||
[ $ret -eq 0 ] && success || failure
|
||||
echo
|
||||
fi
|
||||
|
||||
# Load sysctl settings
|
||||
load_sysctl
|
||||
|
||||
return $ret
|
||||
}
|
||||
|
||||
restart() {
|
||||
[ "x$IP6TABLES_SAVE_ON_RESTART" = "xyes" ] && save
|
||||
stop
|
||||
start
|
||||
}
|
||||
|
||||
|
||||
case "$1" in
|
||||
start)
|
||||
[ -f "$VAR_SUBSYS_IP6TABLES" ] && exit 0
|
||||
start
|
||||
RETVAL=$?
|
||||
;;
|
||||
stop)
|
||||
[ "x$IP6TABLES_SAVE_ON_STOP" = "xyes" ] && save
|
||||
stop
|
||||
RETVAL=$?
|
||||
;;
|
||||
restart|force-reload)
|
||||
restart
|
||||
RETVAL=$?
|
||||
;;
|
||||
reload)
|
||||
[ -e "$VAR_SUBSYS_IP6TABLES" ] && reload
|
||||
RETVAL=$?
|
||||
;;
|
||||
condrestart|try-restart)
|
||||
[ ! -e "$VAR_SUBSYS_IP6TABLES" ] && exit 0
|
||||
restart
|
||||
RETVAL=$?
|
||||
;;
|
||||
status)
|
||||
status
|
||||
RETVAL=$?
|
||||
;;
|
||||
panic)
|
||||
set_policy DROP
|
||||
RETVAL=$?
|
||||
;;
|
||||
save)
|
||||
save
|
||||
RETVAL=$?
|
||||
;;
|
||||
*)
|
||||
echo $"Usage: ${IP6TABLES} {start|stop|reload|restart|condrestart|status|panic|save}"
|
||||
RETVAL=2
|
||||
;;
|
||||
esac
|
||||
|
||||
exit $RETVAL
|
||||
450
libexec/iptables.init
Executable file
450
libexec/iptables.init
Executable file
@ -0,0 +1,450 @@
|
||||
#!/usr/bin/bash
|
||||
#
|
||||
# iptables Start iptables firewall
|
||||
#
|
||||
# chkconfig: 2345 08 92
|
||||
# description: Starts, stops and saves iptables firewall
|
||||
#
|
||||
# config: /etc/sysconfig/iptables
|
||||
# config: /etc/sysconfig/iptables-config
|
||||
#
|
||||
### BEGIN INIT INFO
|
||||
# Provides: iptables
|
||||
# Required-Start:
|
||||
# Required-Stop:
|
||||
# Default-Start: 2 3 4 5
|
||||
# Default-Stop: 0 1 6
|
||||
# Short-Description: start and stop iptables firewall
|
||||
# Description: Start, stop and save iptables firewall
|
||||
### END INIT INFO
|
||||
|
||||
# compat for removed initscripts dependency
|
||||
|
||||
success() {
|
||||
echo -n "[ OK ]"
|
||||
return 0
|
||||
}
|
||||
|
||||
warning() {
|
||||
echo -n "[WARNING]"
|
||||
return 1
|
||||
}
|
||||
|
||||
failure() {
|
||||
echo -n "[FAILED]"
|
||||
return 1
|
||||
}
|
||||
|
||||
IPTABLES=iptables
|
||||
IPTABLES_DATA=/etc/sysconfig/$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
|
||||
33
readme.md
Normal file
33
readme.md
Normal file
@ -0,0 +1,33 @@
|
||||
## Iptables systemd files for SuSe installations
|
||||
|
||||
These files allow iptables and ip6tables to be installed and run as a system service
|
||||
|
||||
## pre installation
|
||||
|
||||
edit the files in sysconfig to match your preffered iptables configuration.
|
||||
the default allows ssh access (22/tcp) to the host only.
|
||||
|
||||
## Installation
|
||||
|
||||
- Install iptables
|
||||
-- zypper install iptables iptables-nft-backend
|
||||
|
||||
- Clone this GIT repo :
|
||||
-- git clone https://git.xo.nl/marcel/iptables
|
||||
|
||||
- Copy the init files to /usr/libexec
|
||||
-- cp libexec/*.init /usr/libexec
|
||||
-- chown root:root /usr/ip?tables.init
|
||||
-- chmod ug+x /usr/ip?tables.init
|
||||
|
||||
- Copy the systemd files to /etc/systemd/system
|
||||
-- cp systemd/* /etc/systemd/system
|
||||
-- systemd daemon-reload
|
||||
|
||||
- Copy the default configuration to /etc/sysconfig
|
||||
-- cp config/* /etc/sysconfig
|
||||
|
||||
- Enable iptables on next boot
|
||||
-- systemctl enable iptables ip6tables
|
||||
|
||||
Reboot your host
|
||||
17
systemd/ip6tables.service
Normal file
17
systemd/ip6tables.service
Normal file
@ -0,0 +1,17 @@
|
||||
[Unit]
|
||||
Description=IPv6 firewall with ip6tables
|
||||
AssertPathExists=/etc/sysconfig/ip6tables
|
||||
Before=network-pre.target
|
||||
Wants=network-pre.target
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
RemainAfterExit=yes
|
||||
ExecStart=/usr/libexec/iptables/ip6tables.init start
|
||||
ExecReload=/usr/libexec/iptables/ip6tables.init reload
|
||||
ExecStop=/usr/libexec/iptables/ip6tables.init stop
|
||||
Environment=BOOTUP=serial
|
||||
Environment=CONSOLETYPE=serial
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
17
systemd/iptables.service
Normal file
17
systemd/iptables.service
Normal file
@ -0,0 +1,17 @@
|
||||
[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
|
||||
Loading…
x
Reference in New Issue
Block a user