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March 11, 2015 09:16
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#!/usr/gnu/bin/sh | |
# | |
# License: GNU General Public License (GPL) | |
# Support: linux-ha@lists.linux-ha.org | |
# | |
# This script manages IP alias IP addresses | |
# | |
# It can add an IP alias, or remove one. | |
# | |
# usage: $0 {start|stop|status|monitor|validate-all|meta-data} | |
# | |
# The "start" arg adds an IP alias. | |
# | |
# Surprisingly, the "stop" arg removes one. :-) | |
# | |
# OCF parameters are as below | |
# OCF_RESKEY_ip | |
# OCF_RESKEY_broadcast | |
# OCF_RESKEY_nic | |
# OCF_RESKEY_cidr_netmask | |
# OCF_RESKEY_lvs_support ( e.g. true, on, 1 ) | |
# OCF_RESKEY_ARP_INTERVAL_MS | |
# OCF_RESKEY_ARP_REPEAT | |
# OCF_RESKEY_ARP_BACKGROUND (e.g. yes ) | |
# OCF_RESKEY_ARP_NETMASK | |
# OCF_RESKEY_local_start_script | |
# OCF_RESKEY_local_stop_script | |
# | |
####################################################################### | |
# Initialization: | |
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} | |
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs | |
SENDARP=$HA_BIN/send_arp | |
FINDIF=$HA_BIN/findif | |
VLDIR=$HA_RSCTMP | |
SENDARPPIDDIR=$HA_RSCTMP | |
SENDARPPIDFILE="$SENDARPPIDDIR/send_arp-$OCF_RESKEY_ip" | |
USAGE="usage: $0 {start|stop|status|monitor|validate-all|meta-data}"; | |
####################################################################### | |
SYSTYPE="`uname -s`" | |
case "$SYSTYPE" in | |
SunOS) | |
# `uname -r` = 5.9 -> SYSVERSION = 9 | |
SYSVERSION="`uname -r | cut -d. -f 2`" | |
;; | |
Darwin) | |
# Treat Darwin the same as the other BSD variants (matched as *BSD) | |
SYSTYPE="${SYSTYPE}BSD" | |
;; | |
*) | |
;; | |
esac | |
meta_data() { | |
cat <<END | |
<?xml version="1.0"?> | |
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd"> | |
<resource-agent name="IPaddr"> | |
<version>1.0</version> | |
<longdesc lang="en"> | |
This script manages IP alias IP addresses | |
It can add an IP alias, or remove one. | |
</longdesc> | |
<shortdesc lang="en">Manages virtual IPv4 addresses (portable version)</shortdesc> | |
<parameters> | |
<parameter name="ip" unique="1" required="1"> | |
<longdesc lang="en"> | |
The IPv4 address to be configured in dotted quad notation, for example | |
"192.168.1.1". | |
</longdesc> | |
<shortdesc lang="en">IPv4 address</shortdesc> | |
<content type="string" default="" /> | |
</parameter> | |
<parameter name="nic" unique="0"> | |
<longdesc lang="en"> | |
The base network interface on which the IP address will be brought | |
online. | |
If left empty, the script will try and determine this from the | |
routing table. | |
Do NOT specify an alias interface in the form eth0:1 or anything here; | |
rather, specify the base interface only. | |
Prerequisite: | |
There must be at least one static IP address, which is not managed by | |
the cluster, assigned to the network interface. | |
If you can not assign any static IP address on the interface, | |
modify this kernel parameter: | |
sysctl -w net.ipv4.conf.all.promote_secondaries=1 | |
(or per device) | |
</longdesc> | |
<shortdesc lang="en">Network interface</shortdesc> | |
<content type="string" default="eth0"/> | |
</parameter> | |
<parameter name="cidr_netmask"> | |
<longdesc lang="en"> | |
The netmask for the interface in CIDR format. (ie, 24), or in | |
dotted quad notation 255.255.255.0). | |
If unspecified, the script will also try to determine this from the | |
routing table. | |
</longdesc> | |
<shortdesc lang="en">Netmask</shortdesc> | |
<content type="string" default=""/> | |
</parameter> | |
<parameter name="broadcast"> | |
<longdesc lang="en"> | |
Broadcast address associated with the IP. If left empty, the script will | |
determine this from the netmask. | |
</longdesc> | |
<shortdesc lang="en">Broadcast address</shortdesc> | |
<content type="string" default=""/> | |
</parameter> | |
<parameter name="iflabel"> | |
<longdesc lang="en"> | |
You can specify an additional label for your IP address here. | |
</longdesc> | |
<shortdesc lang="en">Interface label</shortdesc> | |
<content type="string" default=""/> | |
</parameter> | |
<parameter name="lvs_support"> | |
<longdesc lang="en"> | |
Enable support for LVS Direct Routing configurations. In case a IP | |
address is stopped, only move it to the loopback device to allow the | |
local node to continue to service requests, but no longer advertise it | |
on the network. | |
</longdesc> | |
<shortdesc lang="en">Enable support for LVS DR</shortdesc> | |
<content type="boolean" default="false"/> | |
</parameter> | |
<parameter name="local_stop_script"> | |
<longdesc lang="en"> | |
Script called when the IP is released | |
</longdesc> | |
<shortdesc lang="en">Script called when the IP is released</shortdesc> | |
<content type="string" default=""/> | |
</parameter> | |
<parameter name="local_start_script"> | |
<longdesc lang="en"> | |
Script called when the IP is added | |
</longdesc> | |
<shortdesc lang="en">Script called when the IP is added</shortdesc> | |
<content type="string" default=""/> | |
</parameter> | |
<parameter name="ARP_INTERVAL_MS"> | |
<longdesc lang="en"> | |
milliseconds between ARPs | |
</longdesc> | |
<shortdesc lang="en">milliseconds between gratuitous ARPs</shortdesc> | |
<content type="integer" default="500"/> | |
</parameter> | |
<parameter name="ARP_REPEAT"> | |
<longdesc lang="en"> | |
How many gratuitous ARPs to send out when bringing up a new address | |
</longdesc> | |
<shortdesc lang="en">repeat count</shortdesc> | |
<content type="integer" default="10"/> | |
</parameter> | |
<parameter name="ARP_BACKGROUND"> | |
<longdesc lang="en"> | |
run in background (no longer any reason to do this) | |
</longdesc> | |
<shortdesc lang="en">run in background</shortdesc> | |
<content type="boolean" default="yes"/> | |
</parameter> | |
<parameter name="ARP_NETMASK"> | |
<longdesc lang="en"> | |
netmask for ARP - in nonstandard hexadecimal format. | |
</longdesc> | |
<shortdesc lang="en">netmask for ARP</shortdesc> | |
<content type="string" default="ffffffffffff"/> | |
</parameter> | |
</parameters> | |
<actions> | |
<action name="start" timeout="20s" /> | |
<action name="stop" timeout="20s" /> | |
<action name="monitor" depth="0" timeout="20s" interval="5s" /> | |
<action name="validate-all" timeout="20s" /> | |
<action name="meta-data" timeout="5s" /> | |
</actions> | |
</resource-agent> | |
END | |
exit $OCF_SUCCESS | |
} | |
# The 'ping' command takes highly OS-dependent arguments, so this | |
# function creates a suitable argument list for the host OS's 'ping'. | |
# We use a subset of its functionality: | |
# 1. single packet | |
# 2. reasonable timeout (say 1 second) | |
# | |
# arguments: | |
# $1: IP address to ping | |
# result string: | |
# arguments for ping command | |
# | |
# If more flexibility is needed, they could be specified in the environment | |
# to this function, to adjust the resulting 'ping' arguments. | |
# David Lee <t.d.lee@durham.ac.uk> May 2007 | |
pingargs() { | |
_baseip=$1 | |
_timeout=1 # seconds | |
_pktcount=1 | |
_systype="`uname -s`" | |
case $_systype in | |
Linux) | |
# Default is perpetual ping: need "-c $_pktcount". | |
# -c count -t timetolive -q(uiet) -n(umeric) -W timeout | |
_pingargs="-c $_pktcount -q -n $_baseip" | |
;; | |
SunOS) | |
# Default is immediate (or timeout) return. | |
_pingargs="$_baseip $_timeout" | |
;; | |
*) | |
_pingargs="-c $_pktcount $_baseip" | |
;; | |
esac | |
echo "$_pingargs" | |
} | |
# On Linux systems the (hidden) loopback interface may | |
# conflict with the requested IP address. If so, this | |
# unoriginal code will remove the offending loopback address | |
# and save it in VLDIR so it can be added back in later | |
# when the IPaddr is released. | |
# | |
lvs_remove_conflicting_loopback() { | |
ipaddr="$1" | |
ifname="$2" | |
ocf_log info "Removing conflicting loopback $ifname." | |
if | |
echo $ifname > "$VLDIR/$ipaddr" | |
then | |
: Saved loopback information in $VLDIR/$ipaddr | |
else | |
ocf_log err "Could not save conflicting loopback $ifname." \ | |
"it will not be restored." | |
fi | |
if [ ! -z "${OCF_RESKEY_local_stop_script}" ]; then | |
if [ -x "${OCF_RESKEY_local_stop_script}" ]; then | |
${OCF_RESKEY_local_stop_script} $* | |
fi | |
fi | |
delete_interface "$ifname" "$ipaddr" | |
# Forcibly remove the route (if it exists) to the loopback. | |
delete_route "$ipaddr" | |
} | |
# | |
# On Linux systems the (hidden) loopback interface may | |
# need to be restored if it has been taken down previously | |
# by lvs_remove_conflicting_loopback() | |
# | |
lvs_restore_loopback() { | |
ipaddr="$1" | |
if [ ! -s "$VLDIR/$ipaddr" ]; then | |
return | |
fi | |
ifname=`cat "$VLDIR/$ipaddr"` | |
ocf_log info "Restoring loopback IP Address $ipaddr on $ifname." | |
CMD="OCF_RESKEY_cidr_netmask=32 OCF_RESKEY_ip=$1 OCF_RESKEY_nic=$ifname $FINDIF" | |
if | |
NICINFO=`eval $CMD` | |
NICINFO=`echo $NICINFO | tr " " " " | tr -s " "` | |
then | |
netmask_text=`echo "$NICINFO" | cut -f3 -d " "` | |
broadcast=`echo "$NICINFO" | cut -f5 -d " "` | |
else | |
echo "ERROR: $CMD failed (rc=$rc)" | |
exit $OCF_ERR_GENERIC | |
fi | |
add_interface "$ipaddr" "$ifname" "$ifname" $netmask_text $broadcast | |
rm -f "$VLDIR/$ipaddr" | |
} | |
# | |
# Find out which alias serves the given IP address | |
# The argument is an IP address, and its output | |
# is an aliased interface name (e.g., "eth0:0"). | |
# | |
find_interface_solaris() { | |
ipaddr="$1" | |
$IFCONFIG $IFCONFIG_A_OPT | $AWK '{if ($0 ~ /.*: / && NR > 1) {print "\n"$0} else {print}}' | | |
while read ifname linkstuff | |
do | |
: ifname = $ifname | |
read inet addr junk | |
: inet = $inet addr = $addr | |
while | |
read line && [ "X$line" != "X" ] | |
do | |
: Nothing | |
done | |
case $ifname in | |
*:*) ;; | |
*) continue;; | |
esac | |
# This doesn't look right for a box with multiple NICs. | |
# It looks like it always selects the first interface on | |
# a machine. Yet, we appear to use the results for this case too... | |
ifname=`echo "$ifname" | sed s'%:$%%'` | |
case $addr in | |
addr:$ipaddr) echo $ifname; return $OCF_SUCCESS;; | |
$ipaddr) echo $ifname; return $OCF_SUCCESS;; | |
esac | |
done | |
return $OCF_ERR_GENERIC | |
} | |
find_interface_bsd() { | |
$IFCONFIG $IFCONFIG_A_OPT | awk -v ip_addr="$ipaddr" ' | |
/UP,/ && $0 ~ /^[a-z]+[0-9]:/ { | |
if_name=$1; sub(":$","",if_name); | |
} | |
$1 == "inet" && $2 == ip_addr { | |
print if_name | |
exit(0) | |
}' | |
} | |
# | |
# Find out which alias serves the given IP address | |
# The argument is an IP address, and its output | |
# is an aliased interface name (e.g., "eth0:0"). | |
# | |
find_interface_generic() { | |
ipaddr="$1" | |
$IFCONFIG $IFCONFIG_A_OPT | | |
while read ifname linkstuff | |
do | |
: Read gave us ifname = $ifname | |
read inet addr junk | |
: Read gave us inet = $inet addr = $addr | |
while | |
read line && [ "X$line" != "X" ] | |
do | |
: Nothing | |
done | |
case $ifname in | |
*:*) ifname=`echo $ifname | sed 's/:$//'`;; | |
*) continue;; | |
esac | |
: "comparing $ipaddr to $addr (from ifconfig)" | |
case $addr in | |
addr:$ipaddr) echo $ifname; return $OCF_SUCCESS;; | |
$ipaddr) echo $ifname; return $OCF_SUCCESS;; | |
esac | |
done | |
return $OCF_ERR_GENERIC | |
} | |
# | |
# Find out which alias serves the given IP address | |
# The argument is an IP address, and its output | |
# is an aliased interface name (e.g., "eth0:0"). | |
# | |
find_interface() { | |
ipaddr="$1" | |
case "$SYSTYPE" in | |
SunOS) | |
NIC=`find_interface_solaris $ipaddr`;; | |
*BSD) | |
NIC=`find_interface_bsd $ipaddr`;; | |
*) | |
NIC=`find_interface_generic $ipaddr`;; | |
esac | |
echo $NIC | |
return $OCF_SUCCESS; | |
} | |
# | |
# Find an unused interface/alias name for us to use for new IP alias | |
# The argument is an IP address, and the output | |
# is an aliased interface name (e.g., "eth0:0", "dc0", "le0:0"). | |
# | |
find_free_interface() { | |
NIC="$1" | |
if [ "X$NIC" = "X" ]; then | |
ocf_log err "No free interface found for $OCF_RESKEY_ip" | |
return $OCF_ERR_GENERIC; | |
fi | |
NICBASE="$VLDIR/IPaddr-$NIC" | |
touch "$NICBASE" | |
case "$SYSTYPE" in | |
*BSD) | |
echo $NIC; | |
return $OCF_SUCCESS;; | |
SunOS) | |
echo $NIC; | |
return $OCF_SUCCESS;; | |
# j=1 | |
# IFLIST=`$IFCONFIG $IFCONFIG_A_OPT | \ | |
# grep "^$NIC:[0-9]" | sed 's%: .*%%'` ;; | |
*) | |
j=0 | |
IFLIST=`$IFCONFIG $IFCONFIG_A_OPT | \ | |
grep "^$NIC:[0-9]" | sed 's% .*%%'` | |
TRYADRCNT=`ls "${NICBASE}:"* 2>/dev/null | wc -w | tr -d ' '` | |
if [ -f "${NICBASE}:${TRYADRCNT}" ]; then | |
: OK | |
else | |
j="${TRYADRCNT}" | |
fi | |
;; | |
esac | |
IFLIST=" `echo $IFLIST` " | |
while | |
[ $j -lt 512 ] | |
do | |
case $IFLIST in | |
*" "$NIC:$j" "*) | |
;; | |
*) | |
NICLINK="$NICBASE:$j" | |
if | |
ln "$NICBASE" "$NICLINK" 2>/dev/null | |
then | |
echo "$NIC:$j" | |
return $OCF_SUCCESS | |
fi | |
;; | |
esac | |
j=`expr $j + 1` | |
done | |
return $OCF_ERR_GENERIC | |
} | |
delete_route () { | |
ipaddr="$1" | |
case "$SYSTYPE" in | |
SunOS) return 0;; | |
*BSD) CMD="$ROUTE -n delete -host $ipaddr";; | |
*) CMD="$ROUTE -n del -host $ipaddr";; | |
esac | |
$CMD | |
return $? | |
} | |
delete_interface () { | |
ifname="$1" | |
ipaddr="$2" | |
case "$SYSTYPE" in | |
SunOS) | |
if [ "$SYSVERSION" -ge 8 ] ; then | |
CMD="$IFCONFIG $ifname unplumb" | |
else | |
CMD="$IFCONFIG $ifname 0 down" | |
fi;; | |
Darwin*) | |
CMD="$IFCONFIG $ifname $ipaddr delete";; | |
*BSD) | |
CMD="$IFCONFIG $ifname inet $ipaddr delete";; | |
*) | |
CMD="$IFCONFIG $ifname down";; | |
esac | |
ocf_log info "$CMD" | |
$CMD | |
return $? | |
} | |
add_interface () { | |
ipaddr="$1" | |
iface_base="$2" | |
iface="$3" | |
netmask="$4" | |
broadcast="$5" | |
#echo "VINCENZO: add_interface" | |
if [ $# != 5 ]; then | |
ocf_log err "Insufficient arguments to add_interface: $*" | |
exit $OCF_ERR_ARGS | |
fi | |
#echo "VINCENZO: add_interface 10" | |
case "$SYSTYPE" in | |
SunOS) | |
#echo "VINCENZO: add_interface 15" | |
if [ "$SYSVERSION" -ge 8 ] ; then | |
#echo "VINCENZO: add_interface 18" | |
#echo "VINCENZO: add_interface 18.5" | |
$IFCONFIG $iface plumb | |
rc=$? | |
#echo "VINCENZO: Return code: rc=${rc}" | |
if [ $rc -ne 0 ] ; then | |
echo "ERROR: '$IFCONFIG $iface plumb' failed." | |
return $rc | |
fi | |
fi | |
#echo "VINCENZO: add_interface 19" | |
# At Solaris 10, this single-command version sometimes broke. | |
# Almost certainly an S10 bug. | |
# So hack the following workaround: | |
if echo $netmask | grep -q '\.'; then | |
netmask=`mask2cdr $netmask` | |
fi | |
CMD="sudo ipadm create-addr -t -T static -a $ipaddr/$netmask $iface/cr" | |
#CMD="$IFCONFIG $iface $ipaddr netmask $netmask broadcast $broadcast" | |
#CMD="$IFCONFIG $iface inet $ipaddr" | |
#CMD="$CMD && $IFCONFIG $iface netmask $netmask" | |
#CMD="$CMD && $IFCONFIG $iface up" | |
;; | |
*BSD) | |
# netmask is always set to 255.255.255.255 for an alias | |
CMD="$IFCONFIG $iface inet $ipaddr netmask 255.255.255.255 alias";; | |
*) | |
CMD="$IFCONFIG $iface $ipaddr netmask $netmask broadcast $broadcast";; | |
esac | |
#echo "VINCENZO: add_interface 20" | |
# Use "eval $CMD" (not "$CMD"): it might be a chain of two or more commands. | |
cuser=`whoami` | |
#echo "VINCENZO: current user: ${cuser}" | |
#echo "VINCENZO: netmask=${netmask}" | |
#echo "VINCENZO: trying command: ${CMD}" | |
ocf_log info "eval $CMD" | |
#out=eval "${CMD} 2>&1" | |
out=$( ${CMD} 2>&1 ) | |
#${CMD} | |
rc=$? | |
#echo "VINCENZO: output of ifconfig: ${out}" | |
if [ $rc != 0 ]; then | |
#echo "VINCENZO: ERROR: eval $CMD failed (rc=$rc)" | |
echo "ERROR: eval $CMD failed (rc=$rc)" | |
fi | |
#echo "VINCENZO: returning from add_interface" | |
return $rc | |
} | |
# | |
# Remove the IP alias for the requested IP address... | |
# | |
ip_stop() { | |
#echo "VINCENZO: ip_stop()" | |
SENDARPPIDFILE="$SENDARPPIDDIR/send_arp-$OCF_RESKEY_ip" | |
NIC=`find_interface $OCF_RESKEY_ip` | |
#echo "VINCENZO: ip_stop() SENDARPPIDFILE=${SENDARPPIDFILE} NIC=${NIC}" | |
if [ -f "$SENDARPPIDFILE" ]; then | |
#echo "VINCENZO: ip_stop(), dealing with ${SENDARPPIDFILE}, content: $(cat ${SENDARPPIDFILE})" | |
cat "$SENDARPPIDFILE" | xargs kill | |
rm -f "$SENDARPPIDFILE" | |
fi | |
if [ -z "$NIC" ]; then | |
: Requested interface not in use | |
#echo "VINCENZO: ip_stop(), inteface not in use, returning success" | |
return $OCF_SUCCESS | |
fi | |
if [ ${OCF_RESKEY_lvs_support} = 1 ]; then | |
#echo "VINCENZO: ip_stop(), lvs support" | |
case $NIC in | |
lo*) | |
: Requested interface is on loopback | |
return $OCF_SUCCESS;; | |
esac | |
fi | |
delete_route "$OCF_RESKEY_ip" | |
delete_interface "$NIC" "$OCF_RESKEY_ip" | |
rc=$? | |
#echo "VINCENZO: ip_stop(), after delete_route and delete_interface, return code is: ${rc}" | |
if [ ${OCF_RESKEY_lvs_support} = 1 ]; then | |
#echo "VINCENZO: ip_stop(), about to restore loopback interface" | |
lvs_restore_loopback "$OCF_RESKEY_ip" | |
fi | |
# remove lock file... | |
rm -f "$VLDIR/IPaddr-$NIC" | |
if [ $rc != 0 ]; then | |
#echo "VINCENZO: ip_stop(), there was an error while removing the log file" | |
ocf_log warn "IP Address $OCF_RESKEY_ip NOT released: rc=$rc" | |
return $OCF_ERR_GENERIC | |
fi | |
#echo "VINCENZO: ip_stop(), about to return success" | |
return $OCF_SUCCESS | |
} | |
# | |
# Add an IP alias for the requested IP address... | |
# | |
# It could be that we already have taken it, in which case it should | |
# do nothing. | |
# | |
ip_start() { | |
# | |
# Do we already service this IP address? | |
# | |
#echo "VINCENZO: at ip_start()" | |
ip_status_internal | |
if [ $? = $OCF_SUCCESS ]; then | |
# Nothing to do, the IP is already active | |
return $OCF_SUCCESS; | |
fi | |
#echo "VINCENZO: checkpoint 140" | |
NIC_unique=`find_free_interface $OCF_RESKEY_nic` | |
#echo "VINCENZO: NIC_unique=${NIC_unique}" | |
if [ -n "$NIC_unique" ]; then | |
: OK got interface [$NIC_unique] for $OCF_RESKEY_ip | |
else | |
#echo "VINCENZO: exit point because unique interface was not found" | |
return $OCF_ERR_GENERIC | |
fi | |
#echo "VINCENZO: checkpoint 150" | |
# This logic is mostly to support LVS (If I understand it correctly) | |
if [ ${OCF_RESKEY_lvs_support} = 1 ]; then | |
NIC_current=`find_interface $OCF_RESKEY_ip` | |
case $NIC_unique in | |
lo*) | |
if [ x"$NIC_unique" = x"$NIC_current" ]; then | |
# Its already "running" and not moving, nothing to do. | |
ocf_log err "Could not find a non-loopback device to move $OCF_RESKEY_ip to" | |
return $OCF_ERR_GENERIC | |
fi;; | |
*) lvs_remove_conflicting_loopback "$OCF_RESKEY_ip" "$NIC_current";; | |
esac | |
fi | |
#echo "VINCENZO: checkpoint 160" | |
if [ ! -z "${OCF_RESKEY_local_start_script}" ]; then | |
if [ -x "${OCF_RESKEY_local_start_script}" ]; then | |
${OCF_RESKEY_local_start_script} $* | |
fi | |
fi | |
#echo "VINCENZO: checkpoint 165" | |
add_interface "$OCF_RESKEY_ip" "$OCF_RESKEY_nic" "$NIC_unique" \ | |
"$OCF_RESKEY_cidr_netmask" "$OCF_RESKEY_broadcast" | |
rc=$? | |
if [ $rc != 0 ]; then | |
#echo "VINCENZO: checkpoint 166: add_interface returned error" | |
ocf_log err "Could not add $OCF_RESKEY_ip to $OCF_RESKEY_nic: rc=$rc" | |
return $rc | |
fi | |
#echo "VINCENZO: checkpoint 170" | |
# The address is active, now notify others about it using sendarp | |
if [ "$SYSTYPE" = "DarwinBSD" -a "$NIC_unique" = "lo0" ]; then | |
# Darwin can't send ARPs on loopback devices | |
SENDARP="x$SENDARP" # Prevent the binary from being found | |
fi | |
if [ -x $SENDARP ]; then | |
TARGET_INTERFACE=`echo $NIC_unique | sed 's%:.*%%'` | |
SENDARPPIDFILE="$SENDARPPIDDIR/send_arp-$OCF_RESKEY_ip" | |
ARGS="-i $OCF_RESKEY_ARP_INTERVAL_MS -r $OCF_RESKEY_ARP_REPEAT" | |
ARGS="$ARGS -p $SENDARPPIDFILE $TARGET_INTERFACE $OCF_RESKEY_ip" | |
ARGS="$ARGS auto $OCF_RESKEY_ip $OCF_RESKEY_ARP_NETMASK" | |
#echo "VINCENZO: checkpoint 180" | |
ocf_log debug "Sending Gratuitous Arp for $OCF_RESKEY_ip on $NIC_unique [$TARGET_INTERFACE]" | |
case $OCF_RESKEY_ARP_BACKGROUND in | |
yes) ($SENDARP $ARGS || ocf_log err "Could not send gratuitous arps. rc=$?" & ) >&2 ;; | |
*) $SENDARP $ARGS || ocf_log err "Could not send gratuitous arps. rc=$?";; | |
esac | |
fi | |
#echo "VINCENZO: checkpoint 190" | |
ip_status_internal | |
rc=$? | |
#echo "VINCENZO: checkpoint 200 returning $rc" | |
return $rc | |
} | |
ip_status_internal() { | |
NIC=`find_interface "$OCF_RESKEY_ip"` | |
#echo "VINCENZO: ip_status_internal: NIC=${NIC}" | |
if [ "x$NIC" = x ]; then | |
#echo "VINCENZO: OCF_NOT_RUNNING" | |
return $OCF_NOT_RUNNING | |
elif [ "${OCF_RESKEY_lvs_support}" = "1" ]; then | |
#echo "VINCENZO: lvs_support" | |
case $NIC in | |
lo*) return $OCF_NOT_RUNNING;; | |
*) return $OCF_SUCCESS;; | |
esac | |
else | |
if [ x$OCF_RESKEY_nic != x ]; then | |
simple_OCF_NIC=`echo $OCF_RESKEY_nic | awk -F: '{print $1}'` | |
simple_NIC=`echo $NIC | awk -F: '{print $1}'` | |
#echo "VINCENZO: simple_OCF_NIC=${simple_OCF_NIC} simple_NIC=${simple_NIC}" | |
if [ $simple_OCF_NIC != $simple_NIC ]; then | |
ocf_log err "$OCF_RESKEY_ip is running an interface ($simple_NIC) instead of the configured one ($simple_OCF_NIC)" | |
return $OCF_ERR_GENERIC | |
fi | |
fi | |
#echo "VINCENZO ip_status_internal: about to return success" | |
return $OCF_SUCCESS | |
fi | |
} | |
ip_status() { | |
ip_status_internal | |
rc=$? | |
if [ $rc = $OCF_SUCCESS ]; then | |
echo "running" | |
elif [ $rc = $OCF_NOT_RUNNING ]; then | |
echo "stopped" | |
else | |
echo "unknown" | |
fi | |
return $rc; | |
} | |
# | |
# Determine if this IP address is really being served, or not. | |
# Note that we must distinguish if *we're* serving it locally... | |
# | |
ip_monitor() { | |
ip_status_internal | |
rc=$? | |
if [ $OCF_CHECK_LEVEL = 0 -o $rc != 0 ]; then | |
return $rc | |
fi | |
ocf_log info "Checking IP stack" | |
PINGARGS="`pingargs $OCF_RESKEY_ip`" | |
for j in 1 2 3 4 5 6 7 8 9 10; do | |
MSG=`$PING $PINGARGS 2>&1` | |
if [ $? = 0 ]; then | |
return $OCF_SUCCESS | |
fi | |
done | |
ocf_log err "$MSG" | |
return $OCF_ERR_GENERIC | |
} | |
is_positive_integer() { | |
ocf_is_decimal $1 && [ $1 -ge 1 ] | |
if [ $? = 0 ]; then | |
return 1 | |
fi | |
return 0 | |
} | |
ip_validate_all() { | |
: ${OCF_RESKEY_ARP_BACKGROUND=yes} | |
: ${OCF_RESKEY_ARP_NETMASK=ffffffffffff} | |
: ${OCF_RESKEY_ARP_INTERVAL_MS=500} | |
: ${OCF_RESKEY_ARP_REPEAT=10} | |
check_binary $AWK | |
check_binary $IFCONFIG | |
check_binary $ROUTE | |
check_binary $PING | |
if is_positive_integer $OCF_RESKEY_ARP_INTERVAL_MS | |
then | |
ocf_log err "Invalid parameter value: ARP_INTERVAL_MS [$OCF_RESKEY_ARP_INTERVAL_MS]" | |
return $OCF_ERR_ARGS | |
fi | |
if is_positive_integer $OCF_RESKEY_ARP_REPEAT | |
then | |
ocf_log err "Invalid parameter value: ARP_REPEAT [$OCF_RESKEY_ARP_REPEAT]" | |
return $OCF_ERR_ARGS | |
fi | |
: ${OCF_RESKEY_lvs_support=0} | |
if [ "$SYSTYPE" = "Linux" -o "$SYSTYPE" = "SunOS" ]; then | |
: | |
else | |
if [ "${OCF_RESKEY_lvs_support}" = "1" ]; then | |
ocf_log err "$SYSTYPE does not support LVS" | |
return $OCF_ERR_GENERIC | |
fi | |
fi | |
case $OCF_RESKEY_ip in | |
"") ocf_log err "Required parameter OCF_RESKEY_ip is missing" | |
return $OCF_ERR_CONFIGURED;; | |
[0-9]*.[0-9]*.[0-9]*.*[0-9]) : OK;; | |
*) ocf_log err "Parameter OCF_RESKEY_ip [$OCF_RESKEY_ip] not an IP address" | |
return $OCF_ERR_CONFIGURED;; | |
esac | |
# Unconditionally do this? | |
case $OCF_RESKEY_nic in | |
*:*) | |
OCF_RESKEY_nic=`echo $OCF_RESKEY_nic | sed 's/:.*//'` | |
;; | |
esac | |
# FINDIF will not work if the interface doesn't at least exist | |
if ipadm show-if | grep -wq ${OCF_RESKEY_nic}; then | |
#echo "VINCENZO: interface already exists, delete it" | |
$( sudo ipadm delete-if ${OCF_RESKEY_nic} ) | |
rc=$? | |
if [ $rc != 0 ]; then | |
ocf_log err "Error while deleting interface ${OCF_RESKEY_nic}" | |
fi | |
fi | |
#echo "VINCENZO: creating interface" | |
$( sudo ipadm create-if ${OCF_RESKEY_nic} ) | |
rc=$? | |
if [ $rc != 0 ]; then | |
ocf_log err "Cannot create interface ${OCF_RESKEY_nic}" | |
fi | |
#echo "VINCENZO: FINDIF: ${FINDIF}" | |
#echo "VINCENZO ${OCF_RESKEY_ip} ${OCF_RESKEY_cidr_netmask} ${OCF_RESKEY_broadcast} ${OCF_RESKEY_nic}" | |
NICINFO=`$FINDIF` | |
#NICINFO=$( ${FINDIF} 2>&1 ) | |
#echo "VINCENZO: NICINFO: ${NICINFO}" | |
rc=$? | |
#echo "VINCENZO: checkpoint 50" | |
if [ $rc != 0 ]; then | |
#echo "VINCENZO: checkpoint 51" | |
ocf_log err "$FINDIF failed [rc=$rc]." | |
return $OCF_ERR_GENERIC | |
fi | |
#echo "VINCENZO: checkpoint 52, NICINFO=${NICINFO}, OCF_RESKEY_nic=${OCF_RESKEY_nic}" | |
tmp=`echo "$NICINFO" | cut -f1` | |
if | |
[ "x$OCF_RESKEY_nic" = "x" ] | |
then | |
ocf_log info "Using calculated nic for ${OCF_RESKEY_ip}: $tmp" | |
OCF_RESKEY_nic=$tmp | |
elif | |
[ x$tmp != x${OCF_RESKEY_nic} ] | |
then | |
#echo "VINCENZO: checkpoint 54" | |
ocf_log err "Invalid parameter value: nic [$OCF_RESKEY_nic] Calculated nic: [$tmp]" | |
return $OCF_ERR_ARGS | |
fi | |
#echo "VINCENZO: checkpoint 55" | |
tmp=`echo "$NICINFO" | cut -f2 | cut -d ' ' -f2` | |
if | |
[ "x$OCF_RESKEY_cidr_netmask" != "x$tmp" ] | |
then | |
ocf_log info "Using calculated netmask for ${OCF_RESKEY_ip}: $tmp" | |
fi | |
#echo "VINCENZO: checkpoint 75" | |
# Always use the calculated version becuase it might have been specified | |
# using CIDR notation which not every system accepts | |
OCF_RESKEY_netmask=$tmp | |
OCF_RESKEY_cidr_netmask=$tmp; export OCF_RESKEY_cidr_netmask | |
tmp=`echo "$NICINFO" | cut -f3 | cut -d ' ' -f2` | |
if | |
[ "x$OCF_RESKEY_broadcast" = "x" ] | |
then | |
ocf_log debug "Using calculated broadcast for ${OCF_RESKEY_ip}: $tmp" | |
OCF_RESKEY_broadcast=$tmp | |
elif [ x$tmp != x${OCF_RESKEY_broadcast} ]; then | |
ocf_log err "Invalid parameter value: broadcast [$OCF_RESKEY_broadcast] Calculated broadcast: [$tmp]" | |
return $OCF_ERR_ARGS | |
fi | |
#echo "VINCENZO: validate-all: about to return SUCCESS " | |
return $OCF_SUCCESS | |
} | |
mask2cdr () | |
{ | |
# Assumes there's no "255." after a non-255 byte in the mask | |
local x=${1##*255.} | |
set -- 0^^^128^192^224^240^248^252^254^ $(( (${#1} - ${#x})*2 )) ${x%%.*} | |
x=${1%%$3*} | |
echo $(( $2 + (${#x}/4) )) | |
} | |
cdr2mask () | |
{ | |
# Number of args to shift, 255..255, first non-255 byte, zeroes | |
set -- $(( 5 - ($1 / 8) )) 255 255 255 255 $(( (255 << (8 - ($1 % 8))) & 255 )) 0 0 0 | |
[ $1 -gt 1 ] && shift $1 || shift | |
echo ${1-0}.${2-0}.${3-0}.${4-0} | |
} | |
usage() { | |
echo $USAGE >&2 | |
return $1 | |
} | |
if [ $# -ne 1 ]; then | |
usage $OCF_ERR_ARGS | |
fi | |
: ${OCF_RESKEY_lvs_support=0} | |
# Normalize the value of lvs_support | |
if [ "${OCF_RESKEY_lvs_support}" = "true" \ | |
-o "${OCF_RESKEY_lvs_support}" = "on" \ | |
-o "${OCF_RESKEY_lvs_support}" = "yes" \ | |
-o "${OCF_RESKEY_lvs_support}" = "1" ]; then | |
OCF_RESKEY_lvs_support=1 | |
else | |
OCF_RESKEY_lvs_support=0 | |
fi | |
# Note: We had a version out there for a while which used | |
# netmask instead of cidr_netmask. So, don't remove this aliasing code! | |
if | |
[ ! -z "$OCF_RESKEY_netmask" -a -z "$OCF_RESKEY_cidr_netmask" ] | |
then | |
OCF_RESKEY_cidr_netmask=$OCF_RESKEY_netmask | |
export OCF_RESKEY_cidr_netmask | |
fi | |
case $1 in | |
meta-data) meta_data;; | |
start) ip_validate_all && ip_start;; | |
stop) ip_stop;; | |
status) ip_status;; | |
monitor) ip_monitor;; | |
validate-all) ip_validate_all;; | |
usage) usage $OCF_SUCCESS;; | |
*) usage $OCF_ERR_UNIMPLEMENTED;; | |
esac | |
exit $? |
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