Page MenuHomeClusterLabs Projects
Files F7609264

No OneTemporary
Actions

View Options

diff --git a/heartbeat/ocf-binaries.in b/heartbeat/ocf-binaries.in
index e11ae1d6f..aed6eecae 100644
--- a/heartbeat/ocf-binaries.in
+++ b/heartbeat/ocf-binaries.in
@@ -1,76 +1,77 @@
# Make sure PATH contains all the usual suspects
PATH="$PATH:/sbin:/bin:/usr/sbin:/usr/bin"
# Include /usr/ucb for finding whoami on Solaris
PATH="$PATH:/usr/ucb"
export PATH
# Binaries and binary options for use in Resource Agents
: ${AWK:=@AWK@}
: ${EGREP:="@EGREP@"}
: ${FGREP:="@FGREP@"}
: ${IFCONFIG_A_OPT:="@IFCONFIG_A_OPT@"}
: ${MAILCMD:=@MAILCMD@}
: ${PING:=@PING@}
: ${SH:=@SHELL@}
: ${TEST:=@TEST@}
: ${TESTPROG:=@TEST@}
# Entries that should probably be removed
: ${BASENAME:=basename}
: ${BLOCKDEV:=blockdev}
: ${CAT:=cat}
: ${FSCK:=fsck}
: ${FUSER:=fuser}
: ${GETENT:=getent}
: ${GREP:=grep}
: ${IFCONFIG:=ifconfig}
+: ${NFTABLES:=nft}
: ${IPTABLES:=iptables}
## for cases that are known not to be serviceable with iptables-nft impl.
: ${IPTABLES_LEGACY:=iptables-legacy}
: ${IP2UTIL:=ip}
: ${MDADM:=mdadm}
: ${MODPROBE:=modprobe}
: ${MOUNT:=mount}
: ${MSGFMT:=msgfmt}
: ${NETSTAT:=netstat}
: ${PERL:=perl}
: ${RAIDSTART:=raidstart}
: ${RAIDSTOP:=raidstop}
: ${ROUTE:=route}
: ${UMOUNT:=umount}
: ${REBOOT:=reboot}
: ${POWEROFF_CMD:=poweroff}
: ${WGET:=wget}
: ${WHOAMI:=whoami}
: ${STRINGSCMD:=strings}
: ${SCP:=scp}
: ${SSH:=@SSH@}
: ${SWIG:=swig}
: ${GZIP_PROG:=gzip}
: ${TAR:=tar}
: ${MD5:=md5}
: ${DRBDADM:=drbdadm}
: ${DRBDSETUP:=drbdsetup}
check_binary () {
if ! have_binary "$1"; then
if [ "$OCF_NOT_RUNNING" = 7 ]; then
# Chances are we have a fully setup OCF environment
ocf_exit_reason "Setup problem: couldn't find command: $1"
else
echo "Setup problem: couldn't find command: $1"
fi
exit $OCF_ERR_INSTALLED
fi
}
have_binary () {
if [ "$OCF_TESTER_FAIL_HAVE_BINARY" = "1" ]; then
false
else
local bin=`echo $1 | sed -e 's/ -.*//'`
test -x "`which $bin 2>/dev/null`"
fi
}
diff --git a/heartbeat/portblock b/heartbeat/portblock
index 9b4f5db39..1eea28a6d 100755
--- a/heartbeat/portblock
+++ b/heartbeat/portblock
@@ -1,672 +1,895 @@
#!/bin/sh
#
-# portblock: iptables temporary portblocking control
+# portblock: iptables temporary portblocking control
#
# Author: Sun Jiang Dong (initial version)
# Philipp Reisner (per-IP filtering)
+# Sebastian Baszczyj (nftables code)
#
# License: GNU General Public License (GPL)
#
# Copyright: (C) 2005 International Business Machines
#
# OCF parameters are as below:
# OCF_RESKEY_protocol
# OCF_RESKEY_portno
# OCF_RESKEY_action
# OCF_RESKEY_ip
# OCF_RESKEY_tickle_dir
# OCF_RESKEY_sync_script
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
# Defaults
+OCF_RESKEY_firewall_default="auto"
OCF_RESKEY_protocol_default=""
OCF_RESKEY_portno_default=""
OCF_RESKEY_direction_default="in"
OCF_RESKEY_action_default=""
OCF_RESKEY_ip_default="0.0.0.0/0"
OCF_RESKEY_reset_local_on_unblock_stop_default="false"
OCF_RESKEY_tickle_dir_default=""
OCF_RESKEY_sync_script_default=""
+: ${OCF_RESKEY_firewall=${OCF_RESKEY_firewall_default}}
: ${OCF_RESKEY_protocol=${OCF_RESKEY_protocol_default}}
: ${OCF_RESKEY_portno=${OCF_RESKEY_portno_default}}
: ${OCF_RESKEY_direction=${OCF_RESKEY_direction_default}}
: ${OCF_RESKEY_action=${OCF_RESKEY_action_default}}
: ${OCF_RESKEY_ip=${OCF_RESKEY_ip_default}}
: ${OCF_RESKEY_reset_local_on_unblock_stop=${OCF_RESKEY_reset_local_on_unblock_stop_default}}
: ${OCF_RESKEY_tickle_dir=${OCF_RESKEY_tickle_dir_default}}
: ${OCF_RESKEY_sync_script=${OCF_RESKEY_sync_script_default}}
#######################################################################
CMD=`basename $0`
TICKLETCP=$HA_BIN/tickle_tcp
+TABLE="portblock"
+# Promotion scores
+SCORE_UNPROMOTED=5
+SCORE_PROMOTED=10
usage()
{
cat <<END >&2
- usage: $CMD {start|stop|status|monitor|meta-data|validate-all}
+ usage: $CMD {start|stop|promote|demote|status|monitor|meta-data|validate-all}
- $CMD is used to temporarily block ports using iptables.
+ $CMD is used to temporarily block ports using nftables or iptables.
It can be used to blackhole a port before bringing
up an IP address, and enable it after a service is started.
To do that for samba, the following can be used:
crm configure <<EOF
primitive portblock-samba ocf:heartbeat:portblock \\
params protocol=tcp portno=137,138 action=block
primitive portunblock-samba ocf:heartbeat:portblock \\
params protocol=tcp portno=137,138 action=unblock
primitive samba-vip ocf:heartbeat:IPaddr2 \\
params ip=10.10.10.20
group g-samba \\
portblock-samba samba-vip nmbd smbd portunblock-samba
EOF
This will do the following things:
- DROP all incoming packets for TCP ports 137 and 138
- Bring up the IP alias 10.10.10.20
- start the nmbd and smbd services
- Re-enable TCP ports 137 and 138
(enable normal firewall rules on those ports)
This prevents clients from getting TCP RST if they try to reconnect
to the service after the alias is enabled but before nmbd and smbd
are running. These packets will cause some clients to give up
attempting to reconnect to the server.
Attempts to connect to UDP and other non-TCP ports which have nothing
listening can result in ICMP port unreachable responses, which can
have the same undesirable affect on some clients.
NOTE: iptables is Linux-specific.
An additional feature in the portblock RA is the tickle ACK function
- enabled by specifying the tickle_dir parameter. The tickle ACK
- triggers the clients to faster reconnect their TCP connections to the
+ enabled by specifying the tickle_dir parameter. The tickle ACK
+ triggers the clients to faster reconnect their TCP connections to the
fail-overed server.
Please note that this feature is often used for the floating IP fail-
over scenario where the long-lived TCP connections need to be tickled.
It doesn't support the cluster alias IP scenario.
When using the tickle ACK function, in addition to the normal usage
- of portblock RA, the parameter tickle_dir must be specified in the
+ of portblock RA, the parameter tickle_dir must be specified in the
action=unblock instance of the portblock resources.
For example, you may stack resources like below:
portblock action=block
services
portblock action=unblock tickle_dir=/tickle/state/dir
If you want to tickle all the TCP connections which connected to _one_
- floating IP but different ports, no matter how many portblock resources
- you have defined, you should enable tickles for _one_ portblock
+ floating IP but different ports, no matter how many portblock resources
+ you have defined, you should enable tickles for _one_ portblock
resource(action=unblock) only.
-
- The tickle_dir is a location which stores the established TCP
- connections. It can be a shared directory(which is cluster-visible to
+
+ The tickle_dir is a location which stores the established TCP
+ connections. It can be a shared directory(which is cluster-visible to
all nodes) or a local directory.
If you use the shared directory, you needn't do any other things.
If you use the local directory, you must also specify the sync_script
paramater. We recommend you to use csync2 as the sync_script.
- For example, if you use the local directory /tmp/tickle as tickle_dir,
- you could setup the csync2 as the csync2 documentation says and
+ For example, if you use the local directory /tmp/tickle as tickle_dir,
+ you could setup the csync2 as the csync2 documentation says and
configure your /etc/csync2/csync2.cfg like:
group ticklegroup {
host node1;
host node2;
key /etc/csync2/ticklegroup.key;
include /etc/csync2/csync2.cfg;
include /tmp/tickle;
auto younger;
}
Then specify the parameter sync_script as "csync2 -xv".
END
}
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="portblock" version="1.0">
<version>1.0</version>
<longdesc lang="en">
-Resource script for portblock. It is used to temporarily block ports
-using iptables. In addition, it may allow for faster TCP reconnects
-for clients on failover. Use that if there are long lived TCP
-connections to an HA service. This feature is enabled by setting the
-tickle_dir parameter and only in concert with action set to unblock.
+Resource script for portblock. It is used to block ports using nftables
+or iptables. In addition, it may allow for faster TCP reconnects for
+clients on failover. Use that if there are long lived TCP connections
+to an HA service. This feature is enabled by setting the tickle_dir
+parameter and only in concert with action set to unblock.
Note that the tickle ACK function is new as of version 3.0.2 and
hasn't yet seen widespread use.
+
+In Promotable mode, the promote action unblocks the ports on the Promoted node
+and blocks the ports on the Unpromoted node(s) when action=block, and vice versa
+when action=unblock.
</longdesc>
<shortdesc lang="en">Block and unblocks access to TCP and UDP ports</shortdesc>
<parameters>
+<parameter name="firewall" unique="0" required="0">
+<longdesc lang="en">
+Firewall to use, e.g. auto (default), nft, or iptables.
+</longdesc>
+<shortdesc lang="en">Firewall</shortdesc>
+<content type="string" default="${OCF_RESKEY_firewall_default}" />
+</parameter>
+
<parameter name="protocol" unique="0" required="1">
<longdesc lang="en">
The protocol used to be blocked/unblocked.
</longdesc>
<shortdesc lang="en">protocol</shortdesc>
<content type="string" default="${OCF_RESKEY_protocol_default}" />
</parameter>
<parameter name="portno" unique="0" required="1">
<longdesc lang="en">
The port number used to be blocked/unblocked.
</longdesc>
<shortdesc lang="en">portno</shortdesc>
<content type="string" default="${OCF_RESKEY_portno_default}" />
</parameter>
<parameter name="action" unique="0" required="1">
<longdesc lang="en">
The action (block/unblock) to be done on the protocol::portno.
+
+In Promotable mode it is the initial action for start/demote actions,
+and the promote action will change the state to the opposite.
</longdesc>
<shortdesc lang="en">action</shortdesc>
<content type="string" default="${OCF_RESKEY_action_default}" />
</parameter>
<parameter name="reset_local_on_unblock_stop" unique="0" required="0">
<longdesc lang="en">
If for some reason the long lived server side TCP sessions won't be cleaned up
by a reconfiguration/flush/stop of whatever services this portblock protects,
they would linger in the connection table, even after the IP is gone
and services have been switched over to another node.
An example would be the default NFS kernel server.
These "known" connections may seriously confuse and delay a later switchback.
Enabling this option will cause this agent to try to get rid of these connections
by injecting a temporary iptables rule to TCP-reset outgoing packets from the
blocked ports, and additionally tickle them locally,
just before it starts to DROP incoming packets on "unblock stop".
</longdesc>
<shortdesc lang="en">(try to) reset server TCP sessions when unblock stops</shortdesc>
<content type="boolean" default="${OCF_RESKEY_reset_local_on_unblock_stop_default}" />
</parameter>
<parameter name="ip" unique="0" required="0">
<longdesc lang="en">
The IP address used to be blocked/unblocked.
</longdesc>
<shortdesc lang="en">ip</shortdesc>
<content type="string" default="${OCF_RESKEY_ip_default}" />
</parameter>
<parameter name="tickle_dir" unique="0" required="0">
<longdesc lang="en">
-The shared or local directory (_must_ be absolute path) which
+The shared or local directory (_must_ be absolute path) which
stores the established TCP connections.
</longdesc>
<shortdesc lang="en">Tickle directory</shortdesc>
<content type="string" default="${OCF_RESKEY_tickle_dir_default}" />
</parameter>
<parameter name="sync_script" unique="0" required="0">
<longdesc lang="en">
If the tickle_dir is a local directory, then the TCP connection state
file has to be replicated to other nodes in the cluster. It can be
csync2 (default), some wrapper of rsync, or whatever. It takes the
file name as a single argument. For csync2, set it to "csync2 -xv".
</longdesc>
<shortdesc lang="en">Connection state file synchronization script</shortdesc>
<content type="string" default="${OCF_RESKEY_sync_script_default}" />
</parameter>
<parameter name="direction" unique="0" required="0">
<longdesc lang="en">
Whether to block incoming or outgoing traffic. Can be either "in",
"out", or "both".
If "in" is used, the incoming ports are blocked on the INPUT chain.
If "out" is used, the outgoing ports are blocked on the OUTPUT chain.
If "both" is used, both the incoming and outgoing ports are blocked.
</longdesc>
<shortdesc lang="en">Whether to block incoming or outgoing traffic, or both</shortdesc>
<content type="string" default="${OCF_RESKEY_direction_default}" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="20s" />
<action name="stop" timeout="20s" />
+<action name="promote" timeout="10s"/>
+<action name="demote" timeout="10s"/>
<action name="status" depth="0" timeout="10s" interval="10s" />
<action name="monitor" depth="0" timeout="10s" interval="10s" />
<action name="meta-data" timeout="5s" />
<action name="validate-all" timeout="5s" />
</actions>
</resource-agent>
END
}
#
# Because this is the normal usage, we consider "block"
# resources to be pseudo-resources -- that is, their status can't
# be reliably determined through external means.
# This is because we expect an "unblock" resource to come along
# and disable us -- but we're still in some sense active...
#
#active_grep_pat {udp|tcp} portno,portno ip {d|s}
# d = look for destination ports
# s = look for source ports
active_grep_pat()
{
w="[ ][ ]*"
any="0\\.0\\.0\\.0/0"
src=$any dst=$3
if [ "$4" = "s" ]; then
local src=$3
local dst=$any
fi
# iptables 1.8.9 briefly broke the output format, returning the
# numeric protocol value instead of a string. Support both variants.
if [ "$1" = "tcp" ]; then
- local prot="(tcp|6)"
+ local prot="\(tcp\|6\)"
else
- local prot="(udp|17)"
+ local prot="\(udp\|17\)"
+ fi
+ if [ "$FIREWALL" = "nft" ]; then
+ local ip
+ [ "$4" = "s" ] && ip=$src || ip=$dst
+ echo "^\s\+ip $4addr ${ip} $1 $4port $2 ct state { established, related, new } drop$"
+ else
+ echo "^DROP${w}${prot}${w}--${w}${src}${w}${dst}${w}multiport${w}${4}ports${w}${2}$"
fi
- echo "^DROP${w}${prot}${w}--${w}${src}${w}${dst}${w}multiport${w}${4}ports${w}${2}$"
}
#chain_isactive {udp|tcp} portno,portno ip chain
chain_isactive()
{
[ "$4" = "OUTPUT" ] && ds="s" || ds="d"
PAT=$(active_grep_pat "$1" "$2" "$3" "$ds")
- $IPTABLES $wait -n -L "$4" | grep -qE "$PAT"
+ if [ "$FIREWALL" = "nft" ]; then
+ $NFTABLES list chain inet $TABLE $4 2>&1 | grep -q "$PAT"
+ else
+ $IPTABLES $wait -n -L "$4" | grep -q "$PAT"
+ fi
}
# netstat -tn and ss -Htn, split on whitespace and colon,
# look very similar:
# tcp 0 0 10.43.55.1 675 10.43.9.8 2049 ESTABLISHED
# ESTAB 0 0 10.43.55.1 675 10.43.9.8 2049
# so we can write one awk script for both
get_established_tcp_connections()
{
local columns
if [ -z "$1" ] ; then
columns='$4,$5, $6,$7'
else
# swap local and remote for "tickle_local"
columns='$6,$7, $4,$5'
fi
$ss_or_netstat | awk -F '[:[:space:]]+' '
( $8 == "ESTABLISHED" || $1 == "ESTAB" ) && $4 == "'$OCF_RESKEY_ip'" \
{printf "%s:%s\t%s:%s\n", '"$columns"'}'
}
save_tcp_connections()
{
[ -z "$OCF_RESKEY_tickle_dir" ] && return
statefile=$OCF_RESKEY_tickle_dir/$OCF_RESKEY_ip
# If we have _no_ sync script, we probably have a shared
# (or replicated) directory, and need to fsync, or we might
# end up with the just truncated file after failover, exactly
# when we need it.
#
# If we _do_ have a sync script, it is not that important whether
# the local state file is fsync'ed or not, the sync script is
# responsible to "atomically" communicate the state to the peer(s).
if [ -z "$OCF_RESKEY_sync_script" ]; then
get_established_tcp_connections |
dd of="$statefile".new conv=fsync status=none &&
mv "$statefile".new "$statefile"
else
get_established_tcp_connections > $statefile
$OCF_RESKEY_sync_script $statefile > /dev/null 2>&1 &
fi
}
tickle_remote()
{
[ -z "$OCF_RESKEY_tickle_dir" ] && return
f=$OCF_RESKEY_tickle_dir/$OCF_RESKEY_ip
[ -r $f ] || return
$TICKLETCP -n 3 < $f
}
tickle_local()
{
[ -z "$OCF_RESKEY_tickle_dir" ] && return
f=$OCF_RESKEY_tickle_dir/$OCF_RESKEY_ip
[ -r $f ] || return
# swap "local" and "remote" address,
# so we tickle ourselves.
# We set up a REJECT with tcp-reset before we do so, so we get rid of
# the no longer wanted potentially long lived "ESTABLISHED" connection
# entries on the IP we are going to delet in a sec. These would get in
# the way if we switch-over and then switch-back in quick succession.
local i
awk '{ print $2, $1; }' $f | $TICKLETCP
$ss_or_netstat | grep -Fw $OCF_RESKEY_ip || return
for i in 0.1 0.5 1 2 4 ; do
sleep $i
# now kill what is currently in the list,
# not what was recorded during last monitor
get_established_tcp_connections swap | $TICKLETCP
$ss_or_netstat | grep -Fw $OCF_RESKEY_ip || break
done
}
SayActive()
{
ocf_log debug "$CMD DROP rule [$*] is running (OK)"
}
SayConsideredActive()
{
ocf_log debug "$CMD DROP rule [$*] considered to be running (OK)"
}
SayInactive()
{
ocf_log debug "$CMD DROP rule [$*] is inactive"
}
-#IptablesStatus {udp|tcp} portno,portno ip {in|out|both} {block|unblock}
-IptablesStatus() {
+#PortStatus {udp|tcp} portno,portno ip {in|out|both} {block|unblock}
+PortStatus() {
local rc
rc=$OCF_ERR_GENERIC
is_active=0
if [ "$4" = "in" ] || [ "$4" = "both" ]; then
chain_isactive "$1" "$2" "$3" INPUT
is_active=$?
fi
if [ "$4" = "out" ] || [ "$4" = "both" ]; then
chain_isactive "$1" "$2" "$3" OUTPUT
r=$?
[ $r -gt $is_active ] && is_active=$r
fi
if [ $is_active -eq 0 ]; then
case $5 in
block)
SayActive $*
rc=$OCF_SUCCESS
;;
*)
SayInactive $*
rc=$OCF_NOT_RUNNING
;;
esac
+ elif ocf_is_ms; then
+ case $5 in
+ block)
+ SayInactive $*
+ rc=$OCF_NOT_RUNNING
+ ;;
+ *)
+ SayActive $*
+ rc=$OCF_SUCCESS
+ ;;
+ esac
else
case $5 in
block)
if ha_pseudo_resource "${OCF_RESOURCE_INSTANCE}" status; then
SayConsideredActive $*
rc=$OCF_SUCCESS
else
SayInactive $*
rc=$OCF_NOT_RUNNING
fi
;;
*)
if ha_pseudo_resource "${OCF_RESOURCE_INSTANCE}" status; then
SayActive $*
#This is only run on real monitor events.
save_tcp_connections
rc=$OCF_SUCCESS
else
SayInactive $*
rc=$OCF_NOT_RUNNING
fi
;;
esac
fi
return $rc
}
-#DoIptables {-I|-D} {udp|tcp} portno,portno ip chain
-DoIptables()
+#NftDelete chain proto {d|s} ip ports
+NftDelete()
+{
+ local chain=$1 proto=$2 ds=$3 ip=$(echo "$4" | sed "s#/#\\\/#") ports=$5
+ # Try both single port and multi-port patterns for handle search
+ local handles=$($NFTABLES -a list chain inet $TABLE $chain 2>/dev/null | awk "/\s+ip ${ds}addr $ip $proto ${ds}port $ports/"' {printf "%d ", $NF}')
+ for handle in $handles; do
+ ocf_log debug "NftDelete: Deleting $chain rule with handle $handle"
+ nft delete rule inet $TABLE $chain handle $handle || {
+ ocf_exit_reason "NftDelete: Failed to delete $chain handle $handle."
+ return $OCF_ERR_GENERIC
+ }
+ done
+}
+
+#DoPort {-I|-D} {udp|tcp} portno,portno ip chain
+DoPort()
{
op=$1 proto=$2 ports=$3 ip=$4 chain=$5
active=0; chain_isactive "$proto" "$ports" "$ip" "$chain" && active=1
- want_active=0; [ "$op" = "-I" ] && want_active=1
+ want_active=0; { [ "$op" = "insert" ] || [ "$op" = "-I" ] && want_active=1; }
ocf_log debug "active: $active want_active: $want_active"
if [ $active -eq $want_active ] ; then
: Chain already in desired state
else
[ "$chain" = "OUTPUT" ] && ds="s" || ds="d"
- $IPTABLES $wait "$op" "$chain" -p "$proto" -${ds} "$ip" -m multiport --${ds}ports "$ports" -j DROP
+ case $FIREWALL in
+ nft)
+ if [ "$op" = "insert" ]; then
+ $NFTABLES $op rule inet $TABLE $chain ip ${ds}addr $ip $proto ${ds}port $ports ct state { established, related, new } drop
+ elif [ "$op" = "delete" ]; then
+ NftDelete "$chain" "$proto" "$ds" "$ip" "$ports"
+ fi
+ ;;
+ iptables)
+ $IPTABLES $wait "$op" "$chain" -p "$proto" -${ds} "$ip" -m multiport --${ds}ports "$ports" -j DROP
+ ;;
+ esac
fi
}
-#IptablesBLOCK {udp|tcp} portno,portno ip {in|out|both} {block|unblock}
-IptablesBLOCK()
+#PortBLOCK {udp|tcp} portno,portno ip {in|out|both} {block|unblock}
+PortBLOCK()
{
local rc_in=0
local rc_out=0
+ [ "$FIREWALL" = "nft" ] && action="insert" || action="-I"
if [ "$4" = "in" ] || [ "$4" = "both" ]; then
local try_reset=false
- if [ "$1/$5/$__OCF_ACTION" = tcp/unblock/stop ] &&
+ if [ "$1/$5/$__OCF_ACTION" = tcp/unblock/stop ] &&
ocf_is_true $reset_local_on_unblock_stop
then
try_reset=true
fi
if
chain_isactive "$1" "$2" "$3" INPUT
then
: OK -- chain already active
else
- if $try_reset ; then
- $IPTABLES $wait -I OUTPUT -p "$1" -s "$3" -m multiport --sports "$2" -j REJECT --reject-with tcp-reset
- tickle_local
- fi
- $IPTABLES $wait -I INPUT -p "$1" -d "$3" -m multiport --dports "$2" -j DROP
- rc_in=$?
- if $try_reset ; then
- $IPTABLES $wait -D OUTPUT -p "$1" -s "$3" -m multiport --sports "$2" -j REJECT --reject-with tcp-reset
+ if [ "$FIREWALL" = "nft" ]; then
+ if $try_reset ; then
+ $NFTABLES insert rule inet $TABLE OUTPUT ip saddr $3 $1 sport $2 ct state { established, related, new } reject with tcp reset
+ tickle_local
+ fi
+ $NFTABLES insert rule inet $TABLE INPUT ip daddr $3 $1 dport $2 ct state { established, related, new } drop
+ rc_in=$?
+ if $try_reset ; then
+ NftDelete "OUTPUT" "$1" "s" "$ports"
+ fi
+ else
+ if $try_reset ; then
+ $IPTABLES $wait -I OUTPUT -p "$1" -s "$3" -m multiport --sports "$2" -j REJECT --reject-with tcp-reset
+ tickle_local
+ fi
+ $IPTABLES $wait -I INPUT -p "$1" -d "$3" -m multiport --dports "$2" -j DROP
+ rc_in=$?
+ if $try_reset ; then
+ $IPTABLES $wait -D OUTPUT -p "$1" -s "$3" -m multiport --sports "$2" -j REJECT --reject-with tcp-reset
+ fi
fi
fi
fi
if [ "$4" = "out" ] || [ "$4" = "both" ]; then
- DoIptables -I "$1" "$2" "$3" OUTPUT
+ DoPort "$action" "$1" "$2" "$3" OUTPUT
rc_out=$?
fi
[ $rc_in -gt $rc_out ] && return $rc_in || return $rc_out
}
-#IptablesUNBLOCK {udp|tcp} portno,portno ip {in|out|both}
-IptablesUNBLOCK()
+#PortUNBLOCK {udp|tcp} portno,portno ip {in|out|both}
+PortUNBLOCK()
{
+ local action
+ [ "$FIREWALL" = "nft" ] && action="delete" || action="-D"
if [ "$4" = "in" ] || [ "$4" = "both" ]; then
- DoIptables -D "$1" "$2" "$3" INPUT
+ DoPort "$action" "$1" "$2" "$3" INPUT
fi
if [ "$4" = "out" ] || [ "$4" = "both" ]; then
- DoIptables -D "$1" "$2" "$3" OUTPUT
+ DoPort "$action" "$1" "$2" "$3" OUTPUT
fi
return $?
}
-#IptablesStart {udp|tcp} portno,portno ip {in|out|both} {block|unblock}
-IptablesStart()
+#PortStart {udp|tcp} portno,portno ip {in|out|both} {block|unblock}
+PortStart()
{
ha_pseudo_resource "${OCF_RESOURCE_INSTANCE}" start
+
+ if [ "$FIREWALL" = "nft" ]; then
+ $NFTABLES add table inet $TABLE || {
+ ocf_exit_reason "Failed to create nftables table $TABLE"
+ return $OCF_ERR_GENERIC
+ }
+ ocf_log debug "Created nftables table $TABLE"
+
+ $NFTABLES add chain inet $TABLE INPUT { type filter hook input priority 0\; } || {
+ ocf_exit_reason "Failed to create INPUT chain"
+ return $OCF_ERR_GENERIC
+ }
+ ocf_log debug "Created INPUT chain"
+
+ $NFTABLES add chain inet $TABLE OUTPUT { type filter hook output priority 0\; } || {
+ ocf_exit_reason "Failed to create OUTPUT chain"
+ return $OCF_ERR_GENERIC
+ }
+ ocf_log debug "Created OUTPUT chain"
+ fi
+
case $5 in
- block) IptablesBLOCK "$@";;
+ block) PortBLOCK "$@"
+ rc=$?
+ ;;
unblock)
- IptablesUNBLOCK "$@"
+ PortUNBLOCK "$@"
rc=$?
tickle_remote
#ignore run_tickle_tcp exit code!
- return $rc
;;
- *) usage; return 1;
+ *) usage; return $OCF_ERR_CONFIGURED ;
esac
- return $?
+ ocf_is_ms && ocf_promotion_score -v $SCORE_UNPROMOTED -N $nodename
+
+ return $rc
}
-#IptablesStop {udp|tcp} portno,portno ip {in|out|both} {block|unblock}
-IptablesStop()
+#PortStop {udp|tcp} portno,portno ip {in|out|both} {block|unblock}
+PortStop()
{
ha_pseudo_resource "${OCF_RESOURCE_INSTANCE}" stop
+
case $5 in
- block) IptablesUNBLOCK "$@";;
+ block) PortUNBLOCK "$@"
+ rc=$?
+ ;;
unblock)
save_tcp_connections
- IptablesBLOCK "$@"
+ PortBLOCK "$@"
+ rc=$?
;;
- *) usage; return 1;;
+ *) usage; return $OCF_ERR_CONFIGURED ;;
esac
+ ocf_is_ms && ocf_promotion_score -D -N $nodename
+
+ return $rc
+}
+
+PortPromote() {
+ PortStatus "$@"
+ rc=$?
+ if [ $rc -eq $OCF_SUCCESS ] && [ $promotion_score -eq $SCORE_PROMOTED ]; then
+ ocf_log info "Promote: resource already promoted."
+ return $rc
+ elif [ $rc -ne $OCF_SUCCESS ] && [ $rc -ne $OCF_NOT_RUNNING ]; then
+ ocf_exit_reason "Promote: PortStatus failed with rc: $rc."
+ return $rc
+ fi
+ case $5 in
+ block) PortBLOCK "$@"
+ rc=$?
+ ;;
+ unblock)
+ PortUNBLOCK "$@"
+ rc=$?
+ tickle_remote
+ #ignore run_tickle_tcp exit code!
+ ;;
+ *) usage; return $OCF_ERR_CONFIGURED ;
+ esac
+ ocf_promotion_score -v $SCORE_PROMOTED -N $nodename
return $?
}
+PortDemote() {
+ PortStatus "$@"
+ rc=$?
+ if [ $rc -eq $OCF_SUCCESS ] && [ $promotion_score -eq $SCORE_UNPROMOTED ]; then
+ ocf_log info "Demote: resource already demoted."
+ return $rc
+ elif [ $rc -ne $OCF_SUCCESS ] && [ $rc -ne $OCF_NOT_RUNNING ]; then
+ ocf_exit_reason "Demote: PortStatus failed with rc: $rc."
+ return $rc
+ fi
+ case $5 in
+ block)
+ save_tcp_connections
+ PortBLOCK "$@"
+ rc=$?
+ ;;
+ unblock) PortUNBLOCK "$@"
+ rc=$?
+ ;;
+ *) usage; return $OCF_ERR_CONFIGURED ;;
+ esac
+ ocf_promotion_score -v $SCORE_UNPROMOTED -N $nodename
+ return $rc
+}
+
#
# Check if the port is valid, this function code is not decent, but works
#
CheckPort() {
# Examples of valid port: "1080", "1", "0080"
# Examples of invalid port: "1080bad", "0", "0000", ""
echo $1 | $EGREP -qx '[0-9]+(:[0-9]+)?(,[0-9]+(:[0-9]+)?)*'
}
-IptablesValidateAll()
+PortValidateAll()
{
- check_binary $IPTABLES
+ case $FIREWALL in
+ nft)
+ check_binary $IPTABLES ;;
+ iptables)
+ check_binary $NFTABLES ;;
+ esac
+
case $protocol in
tcp|udp)
;;
*)
ocf_log err "Invalid protocol $protocol!"
exit $OCF_ERR_CONFIGURED
;;
esac
if CheckPort "$portno"; then
:
else
ocf_log err "Invalid port number $portno!"
exit $OCF_ERR_CONFIGURED
fi
if [ -n "$OCF_RESKEY_tickle_dir" ]; then
if [ x"$action" != x"unblock" ]; then
ocf_log err "Tickles are only useful with action=unblock!"
exit $OCF_ERR_CONFIGURED
fi
if [ ! -d "$OCF_RESKEY_tickle_dir" ]; then
ocf_log err "The tickle dir doesn't exist!"
- exit $OCF_ERR_INSTALLED
+ exit $OCF_ERR_INSTALLED
fi
fi
case $action in
- block|unblock)
+ block|unblock)
;;
- *)
+ *)
ocf_log err "Invalid action $action!"
exit $OCF_ERR_CONFIGURED
- ;;
+ ;;
esac
if ocf_is_true $reset_local_on_unblock_stop; then
if [ $action != unblock ] ; then
ocf_log err "reset_local_on_unblock_stop is only relevant with action=unblock"
exit $OCF_ERR_CONFIGURED
fi
if [ -z $OCF_RESKEY_tickle_dir ] ; then
ocf_log warn "reset_local_on_unblock_stop works best with tickle_dir enabled as well"
fi
fi
return $OCF_SUCCESS
}
+# Detect firewall tool
+detect_firewall_tool() {
+ if have_binary nft; then
+ FIREWALL="nft"
+ ocf_log debug "Detected nftables"
+ elif have_binary iptables; then
+ FIREWALL="iptables"
+ ocf_log debug "Detected iptables"
+ else
+ ocf_exit_reason "No firewall tool available"
+ return $OCF_ERR_CONFIGURED
+ fi
+}
+
if
( [ $# -ne 1 ] )
then
usage
exit $OCF_ERR_ARGS
fi
-case $1 in
+case $__OCF_ACTION in
meta-data) meta_data
exit $OCF_SUCCESS
;;
usage) usage
exit $OCF_SUCCESS
;;
*) ;;
esac
if [ -z "$OCF_RESKEY_protocol" ]; then
ocf_log err "Please set OCF_RESKEY_protocol"
exit $OCF_ERR_CONFIGURED
-fi
+fi
if [ -z "$OCF_RESKEY_portno" ]; then
ocf_log err "Please set OCF_RESKEY_portno"
exit $OCF_ERR_CONFIGURED
-fi
+fi
if [ -z "$OCF_RESKEY_action" ]; then
ocf_log err "Please set OCF_RESKEY_action"
exit $OCF_ERR_CONFIGURED
-fi
-
-# iptables v1.4.20+ is required to use -w (wait)
-version=$(iptables -V | grep -oE '[0-9]+[\.0-9]+')
-ocf_version_cmp "$version" "1.4.19.1"
-if [ "$?" -eq "2" ]; then
- wait="-w"
-else
- wait=""
fi
protocol=$OCF_RESKEY_protocol
portno=$OCF_RESKEY_portno
direction=$OCF_RESKEY_direction
action=$OCF_RESKEY_action
ip=$OCF_RESKEY_ip
reset_local_on_unblock_stop=$OCF_RESKEY_reset_local_on_unblock_stop
+nodename=$(ocf_local_nodename)
# If "tickle" is enabled, we need to record the list of currently established
# connections during monitor. Use ss where available, and netstat otherwise.
if [ -n "$OCF_RESKEY_tickle_dir" ] ; then
if have_binary ss ; then
ss_or_netstat="ss -Htn"
elif have_binary netstat ; then
ss_or_netstat="netstat -tn"
else
ocf_log err "Neither ss nor netstat found, but needed to record estblished connections."
exit $OCF_ERR_INSTALLED
fi
fi
-case $1 in
- start)
- IptablesStart $protocol $portno $ip $direction $action
+case $OCF_RESKEY_firewall in
+ auto)
+ detect_firewall_tool
+ ;;
+ nft|iptables)
+ FIREWALL="$OCF_RESKEY_firewall"
+ ;;
+ *)
+ ocf_exit_reason "Firewall '$OCF_RESKEY_firewall' not supported."
+ exit $OCF_ERR_CONFIGURED
+ ;;
+esac
+
+if [ "$FIREWALL" = "nft" ]; then
+ echo "$portno" | grep -q "," && portno="{ $(echo $portno | sed 's/,/, /g') }"
+elif [ "$FIREWALL" = "iptables" ]; then
+ # iptables v1.4.20+ is required to use -w (wait)
+ version=$(iptables -V | grep -oE '[0-9]+[\.0-9]+')
+ ocf_version_cmp "$version" "1.4.19.1"
+ if [ "$?" -eq "2" ]; then
+ wait="-w"
+ else
+ wait=""
+ fi
+fi
+
+if ocf_is_ms; then
+ promotion_score=$(ocf_promotion_score -G -N $nodename -q 2> /dev/null)
+ if { [ "$__OCF_ACTION" = "monitor" ] && [ "$promotion_score" = "$SCORE_UNPROMOTED" ]; } || [ "$__OCF_ACTION" = "demote" ] || [ "$__OCF_ACTION" = "start" ]; then
+ case $action in
+ block) action="unblock" ;;
+ unblock) action="block" ;;
+ esac
+ fi
+fi
+
+case $__OCF_ACTION in
+ start)
+ PortStart "$protocol" "$portno" "$ip" "$direction" "$action"
+ ;;
+
+ stop)
+ PortStop "$protocol" "$portno" "$ip" "$direction" "$action"
+ ;;
+
+ promote)
+ PortPromote $protocol "$portno" "$ip" "$direction" "$action"
;;
- stop)
- IptablesStop $protocol $portno $ip $direction $action
+ demote)
+ PortDemote "$protocol" "$portno" "$ip" "$direction" "$action"
;;
- status|monitor)
- IptablesStatus $protocol $portno $ip $direction $action
+ status|monitor)
+ PortStatus "$protocol" "$portno" "$ip" "$direction" "$action"
;;
validate-all)
- IptablesValidateAll
+ PortValidateAll
;;
*) usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
exit $?

File Metadata

Mime Type
text/x-diff
Expires
Wed, Oct 15, 11:59 PM (49 s)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
2451668
Default Alt Text
(31 KB)

Event Timeline