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diff --git a/heartbeat/iscsi b/heartbeat/iscsi
index 6904ce4f5..f43daae6d 100755
--- a/heartbeat/iscsi
+++ b/heartbeat/iscsi
@@ -1,439 +1,439 @@
#!/bin/sh
#
# iSCSI OCF resource agent
# Description: manage iSCSI disks (add/remove) using open-iscsi
#
# Copyright Dejan Muhamedagic <dejan@suse.de>
# (C) 2007 Novell Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#
# See usage() and meta_data() below for more details...
#
# OCF instance parameters:
# OCF_RESKEY_portal: the iSCSI portal address or host name (required)
# OCF_RESKEY_target: the iSCSI target (required)
# OCF_RESKEY_iscsiadm: iscsiadm program path (optional)
# OCF_RESKEY_discovery_type: discovery type (optional; default: sendtargets)
#
# Initialization:
. ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs
usage() {
methods=`iscsi_methods`
methods=`echo $methods | tr ' ' '|'`
cat <<-!
usage: $0 {$methods}
$0 manages an iSCSI target
The 'start' operation starts (adds) the iSCSI target.
The 'stop' operation stops (removes) the iSCSI target.
The 'status' operation reports whether the iSCSI target is connected
The 'monitor' operation reports whether the iSCSI target is connected
The 'validate-all' operation reports whether the parameters are valid
The 'methods' operation reports on the methods $0 supports
!
}
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="iscsi">
<version>1.0</version>
<longdesc lang="en">
OCF Resource Agent for iSCSI. Add (start) or remove (stop) iSCSI
targets.
</longdesc>
<shortdesc lang="en">iscsi resource agent</shortdesc>
<parameters>
<parameter name="portal" unique="0" required="1">
<longdesc lang="en">
The iSCSI portal address in the form: <ip_address|hostname>[":"<port>]
</longdesc>
<shortdesc lang="en">portal</shortdesc>
<content type="string" default="" />
</parameter>
<parameter name="target" unique="1" required="1">
<longdesc lang="en">
The iSCSI target.
</longdesc>
<shortdesc lang="en">target</shortdesc>
<content type="string" default="" />
</parameter>
<parameter name="discovery_type" unique="0" required="0">
<longdesc lang="en">
Discovery type. Currently, with open-iscsi, only the sendtargets
type is supported.
</longdesc>
<shortdesc lang="en">discovery_type</shortdesc>
<content type="string" default="sendtargets" />
</parameter>
<parameter name="devattr" unique="0" required="0">
<longdesc lang="en">
It is not possible to know in advance which device name will the
kernel assign to the new iscsi disk. Therefore, the device name
has to be in some way communicated to the resource which will use
it. This is done by modifying the CIB.
There are two possible methods: 1) insert an attribute in the
node's status section and 2) dynamically reconfigure the user
resource.
1) if devattr is set to 'status_instancename' (default) or
'status_targetname', a transient attribute
'iscsidev:$OCF_RESOURCE_INSTANCE' or correspondingly
'iscsidev:$OCF_RESKEY_target' will be set in the status section.
In this case, the attribute should be referenced in resources
where it is needed in this way: 'CIB:iscsidev:...' (to be
implemented).
2) set devattr attribute to the name of a Filesystem or LVM
resource and we will fix the appropriate attribute in that
resource. In this case, set the attribute (device for Filesystem
or volgrpname for LVM) to '/dev/null', so that the resource agent
correctly reports the resource as stopped.
</longdesc>
<shortdesc lang="en">iscsiadm</shortdesc>
<content type="string" default="status_instancename" />
</parameter>
<parameter name="iscsiadm" unique="0" required="0">
<longdesc lang="en">
iscsiadm program path.
</longdesc>
<shortdesc lang="en">iscsiadm</shortdesc>
<content type="string" default="" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="120" />
<action name="stop" timeout="120" />
<action name="status" timeout="30" />
<action name="monitor" depth="0" timeout="30" interval="120" start-delay="10" />
<action name="validate-all" timeout="5" />
<action name="methods" timeout="5" />
<action name="meta-data" timeout="5" />
</actions>
</resource-agent>
END
}
iscsi_methods() {
cat <<-!
start
stop
status
monitor
validate-all
methods
meta-data
usage
!
}
#
# open-iscsi interface
#
open_iscsi_setup() {
discovery=open_iscsi_discovery
add_disk=open_iscsi_add
remove_disk=open_iscsi_remove
disk_status=open_iscsi_status
iscsiadm=${OCF_RESKEY_iscsiadm:-"iscsiadm"}
which $iscsiadm >/dev/null || {
ocf_log err "iscsiadm not available; please set OCF_RESKEY_iscsiadm"
return $OCF_ERR_INSTALLED
}
ps -e -o cmd | grep -qs '[i]scsid'
}
#
# discovery return codes:
# 0: ok (variable portal set)
# 1: target not found
# 2: target found but can't connect it unambigously
# 3: iscsiadm returned error
open_iscsi_discovery() {
output=`$iscsiadm -m discovery -p $OCF_RESKEY_portal -t $discovery_type`
if [ $? -ne 0 -o x = "x$output" ]; then
[ x != "x$output" ] && echo "$output"
return 3
fi
portal=`echo "$output" |
awk -v target="$OCF_RESKEY_target" '
$NF==target{sub(",.*","",$1);print $1}'`
case `echo "$portal" | wc -w` in
0) #target not found
echo "$output"
ocf_log err "target $OCF_RESKEY_target not found at portal $OCF_RESKEY_portal"
return 1
;;
1) #we're ok
return 0
;;
*) # handle multihome hosts reporting multiple portals
for p in $portal; do
if [ "$OCF_RESKEY_portal" = "$p" ]; then
portal="$OCF_RESKEY_portal"
return 0
fi
done
echo "$output"
ocf_log err "sorry, can't handle multihomed hosts unless you specify exact portal"
return 2
;;
esac
}
open_iscsi_add() {
$iscsiadm -m node -p $1 -T $2 -l
}
open_iscsi_remove() {
$iscsiadm -m node -p $1 -T $2 -u
}
open_iscsi_status() {
$iscsiadm -m session | grep -qs "$2$"
}
iscsi_status() {
if $disk_status $portal $OCF_RESKEY_target; then
return $OCF_SUCCESS
else
return $OCF_NOT_RUNNING
fi
}
iscsi_start() {
if iscsi_status; then
ocf_log info "iscsi $portal $OCF_RESKEY_target already running"
return $OCF_SUCCESS
else
$add_disk $portal $OCF_RESKEY_target ||
return $OCF_ERR_GENERIC
if iscsi_status && insert_dev; then
return $OCF_SUCCESS
else
return $OCF_ERR_GENERIC
fi
fi
}
iscsi_stop() {
if iscsi_status; then
$remove_disk $portal $OCF_RESKEY_target ||
return $OCF_ERR_GENERIC
if iscsi_status; then
return $OCF_ERR_GENERIC
else
remove_dev
return $OCF_SUCCESS
fi
else
ocf_log info "iscsi $portal $OCF_RESKEY_target already stopped"
return $OCF_SUCCESS
fi
}
iscsi_monitor() {
if $disk_status $portal $OCF_RESKEY_target; then
return $OCF_SUCCESS
else
return $OCF_NOT_RUNNING
fi
}
#
# communicate the new device name to other resources through CIB
#
getrsctype() {
crm_resource -x -r "$1" |
awk '/class=/ && /type=/ {
for( i=1; i<=NF; i++ )
if( $i ~ /type=/ ) {
sub("type=","",$i);
gsub("[\"<>]","",$i);
print $i;
}
}'
}
devattrname() {
case "$1" in
status_instancename)
echo "iscsidev:$OCF_RESOURCE_INSTANCE" ;;
status_targetname)
echo "iscsidev:$OCF_RESKEY_target" ;;
*)
type=`getrsctype "$1"`
case "$type" in
Filesystem) echo device;;
LVM) echo volgrpname;;
*)
ocf_log err "unsupported resource type $type"
return 1
;;
esac
esac
return 0
}
iscsi_getdev() {
case `uname` in
Linux)
for session in /sys/class/iscsi_session/session*; do
if [ -f $session/targetname ] &&
[ `cat $session/targetname` = $2 ]
then
echo /dev/$(basename `readlink $session/device/target*/*:0:*/block*`)
return
fi
done
;;
*)
;;
esac
}
insert_dev() {
dev=`iscsi_getdev $portal $OCF_RESKEY_target`
if [ -z "$dev" ]; then
ocf_log err "could not find device name for target $OCF_RESKEY_target"
return 1
fi
attr=`devattrname $devattr` || return 1
case "$devattr" in
status_instancename|status_targetname)
- echo crm_attribute -t status -U `uname -n` -n "$attr" -v "$dev"
+ crm_attribute -t status -U `uname -n` -n "$attr" -v "$dev"
;;
*)
crm_resource -r "$devattr" -p "$attr" -v "$dev"
esac
}
remove_dev() {
attr=`devattrname $devattr` || return 1
case "$devattr" in
status_instancename|status_targetname)
- echo crm_attribute -t status -U `uname -n` -n "$attr" -D
+ crm_attribute -t status -U `uname -n` -n "$attr" -D
;;
*)
crm_resource -r "$devattr" -p "$attr" -v "/dev/null"
esac
}
#
# 'main' starts here...
#
if [ $# -ne 1 ]; then
usage
exit $OCF_ERR_ARGS
fi
# These operations don't require OCF instance parameters to be set
case "$1" in
meta-data) meta_data
exit $OCF_SUCCESS;;
usage) usage
exit $OCF_SUCCESS;;
methods) iscsi_methods
exit $OCF_SUCCESS;;
esac
if [ x = "x$OCF_RESKEY_target" ]; then
ocf_log err "Please set the target attribute"
exit $OCF_ERR_ARGS
fi
case `uname` in
Linux) setup=open_iscsi_setup
;;
*) ocf_log info "platform `uname` may not be supported"
setup=open_iscsi_setup
;;
esac
LSB_STATUS_STOPPED=3
if ! $setup; then
ocf_log info "iscsi initiator utilities not installed or not setup"
case "$1" in
stop) exit $OCF_SUCCESS;;
monitor) exit $OCF_NOT_RUNNING;;
status) exit $LSB_STATUS_STOPPED;;
*) exit $OCF_ERR_ARGS;;
esac
fi
if [ `id -u` != 0 ]; then
ocf_log err "$0 must be run as root"
exit $OCF_ERR_PERM
fi
devattr=${OCF_RESKEY_devattr:-"status_instancename"}
discovery_type=${OCF_RESKEY_discovery_type:-"sendtargets"}
$discovery # discover and setup the real portal string (address)
case $? in
0) ;;
1) [ "$1" = stop ] && exit $OCF_SUCCESS
[ "$1" = monitor ] && exit $OCF_NOT_RUNNING
[ "$1" = status ] && exit $LSB_STATUS_STOPPED
exit $OCF_ERR_GENERIC
;;
[23]) exit $OCF_ERR_GENERIC;;
esac
# What kind of method was invoked?
case "$1" in
start) iscsi_start
exit $?;;
stop) iscsi_stop
exit $?;;
status) if iscsi_status
then
echo iscsi target $OCF_RESKEY_target running
exit $OCF_SUCCESS
else
echo iscsi target $OCF_RESKEY_target stopped
exit $OCF_NOT_RUNNING
fi
;;
monitor) iscsi_status
exit $?;;
validate-all) # OCF_RESKEY_sid was already checked by testoraenv(),
# just exit successfully here.
exit $OCF_SUCCESS;;
*) iscsi_methods
exit $OCF_ERR_UNIMPLEMENTED;;
esac
#
# vim:tabstop=4:shiftwidth=4:textwidth=0:wrapmargin=0

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