File open-iscsi-add-mkinitrd-scriptlets of Package open-iscsi

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File open-iscsi-add-mkinitrd-scriptlets of Package open-iscsi (Revision 34cfe65cd179ecd537db4e8b0097c558)

Currently displaying revision 34cfe65cd179ecd537db4e8b0097c558 , Show latest

---
 etc/mkinitrd/mkinitrd-boot.sh  |   95 +++++++++++++++++++++++++++++++++++++++++
 etc/mkinitrd/mkinitrd-setup.sh |   70 ++++++++++++++++++++++++++++++
 etc/mkinitrd/mkinitrd-stop.sh  |   21 +++++++++
 3 files changed, 186 insertions(+)

--- /dev/null
+++ b/etc/mkinitrd/mkinitrd-boot.sh
@@ -0,0 +1,95 @@
+#!/bin/bash
+#%stage: device
+#%depends: network
+#%programs: /sbin/iscsid /sbin/iscsiadm
+#%modules: iscsi_tcp crc32c scsi_transport_iscsi
+#%if: "$root_iscsi" -o "$TargetAddress"
+#
+##### iSCSI initialization
+##
+## This script initializes iSCSI (SCSI over IP).
+## To be able to use this script, the network has to be setup. 
+## When everything worked as expected, the iSCSI devices will show
+## up as real SCSI devices.
+##
+## Command line parameters
+## -----------------------
+##
+## TargetAddress		the address of the iscsi server
+## TargetPort		the port of the iscsi server (defaults to 3260)
+## TargetName		the iscsi target name (connect to all if empty)
+## iSCSI_ignoreNodes	if set all stored nodes will be ignored (only 
+##			iBFT and commandline nodes get parsed)
+## 
+
+### iSCSI_warning_InitiatorName <new InitiatorName> <Origin>
+# shows a warning about iSCSI InitiatorName differences
+# Origin should be something like "commandline" or "iBFT"
+iSCSI_warning_InitiatorName() {
+	echo "iSCSI:       WARNING"
+	echo "iSCSI: ======================="
+	echo "iSCSI: "
+	echo "iSCSI: InitiatorName given on $2 and internally stored Initiator are different."
+	echo "iSCSI: New:    $tmp_InitiatorName"
+	echo "iSCSI: Stored: $InitiatorName"
+	echo "iSCSI: "
+	echo "iSCSI: using the $2 version"
+}
+
+if [ "$iSCSI_ignoreNodes" ]; then
+	# make us forget we have to initialize stored nodes
+	echo "iSCSI: removing node information..."
+	iscsi_sessions=
+	rm -rf /etc/iscsi/nodes
+	mkdir /etc/iscsi/nodes
+fi
+
+# get the command line InitiatorName
+tmp_InitiatorName="$(get_param InitiatorName)"
+# reads the InitiatorName variable
+. /etc/iscsi/initiatorname.iscsi
+
+# Check of iBFT settings
+if [ -d /sys/firmware/ibft/initiator ] ; then
+    # only use the iBFT InitiatorName if the commandline argument is not "default"
+    read iSCSI_INITIATOR_NAME < /sys/firmware/ibft/initiator
+    if [ "$iSCSI_INITIATOR_NAME" -a "$tmp_InitiatorName" != "default" ] ; then
+    	iSCSI_warning_InitiatorName "$iSCSI_INITIATOR_NAME" "iBFT"
+        InitiatorName=$iSCSI_INITIATOR_NAME
+    fi
+fi
+
+if [ "$tmp_InitiatorName" != "$InitiatorName" -a "$tmp_InitiatorName" != "default" -a "$tmp_InitiatorName" ]; then
+    	iSCSI_warning_InitiatorName "$tmp_InitiatorName" "cmdline"
+	InitiatorName=$tmp_InitiatorName
+fi
+
+# store the detected InitiatorName permanently
+echo "InitiatorName=$InitiatorName" > /etc/iscsi/initiatorname.iscsi
+
+unset iSCSI_warning_InitiatorName
+
+load_modules
+
+echo "Starting iSCSI daemon"
+/sbin/iscsid -n
+
+# log into iBFT nodes
+/sbin/iscsiadm -m fw -l
+
+# Check for command line sessions
+if [ -n "$TargetAddress" -a -n "$TargetName" ] ; then
+
+    # try to detect and connect to the iscsi server
+    echo -n "Starting discovery on ${TargetAddress},${TargetName}: "
+    if /sbin/iscsiadm -m discovery -t st -p ${TargetAddress}:${TargetPort} 2> /dev/null ; then
+	echo "ok."
+    else
+	echo "failed."
+    fi
+    # Mark this node as 'onboot'
+    /sbin/iscsiadm -m node -p $TargetAddress:$TargetPort -T $TargetName -o update -n node.conn[0].startup -v onboot
+fi
+
+# Activate all 'onboot' sessions
+/sbin/iscsiadm -m node -L onboot
--- /dev/null
+++ b/etc/mkinitrd/mkinitrd-setup.sh
@@ -0,0 +1,70 @@
+#!/bin/bash
+#
+#%stage: device
+#
+check_iscsi_root() {
+    local devname=$1
+    local sysfs_path
+
+    sysfs_path=$(/sbin/udevadm info -q path -n $devname 2> /dev/null)
+    if [ -z "$sysfs_path" ] || [ ! -d /sys$sysfs_path ] ; then
+	return;
+    fi
+
+    pushd /sys$sysfs_path > /dev/null
+    if [ ! -d device ] ; then
+	cd ..
+    fi
+
+    if [ ! -d device ] ; then
+	# no device link; return
+	popd > /dev/null
+	return;
+    fi
+
+    cd -P device
+    cd ../..
+
+    if [ -d connection* ]; then
+	cd -P connection*
+	cid=${PWD#*connection}
+	sid=${cid%%:*}
+	if [ -d /sys/class/iscsi_session/session$sid ]; then
+	    cd -P /sys/class/iscsi_session/session$sid
+	    echo $(basename $PWD)
+	fi
+    fi
+    popd > /dev/null
+}
+
+for bd in $blockdev; do
+    update_blockdev $bd
+    sid=$(check_iscsi_root $bd)
+    if [ "$sid" ]; then
+    	root_iscsi=1
+    	iscsi_sessions="$iscsi_sessions ${sid#session}"
+    fi
+done
+
+save_var root_iscsi
+save_var iscsi_sessions
+
+if [ "${root_iscsi}" ]; then
+    for session in $iscsi_sessions; do
+    	eval TargetName${session}=$(cat /sys/class/iscsi_session/session${session}/targetname)
+	eval TargetAddress${session}=$(cat /sys/class/iscsi_connection/connection${session}:0/address)
+	eval TargetPort${session}=$(cat /sys/class/iscsi_connection/connection${session}:0/port)
+	
+	save_var TargetName${session}
+	save_var TargetAddress${session}
+	save_var TargetPort${session}
+    done
+    # copy the iscsi configuration
+    cp -rp /etc/iscsi etc/
+    if [ -z "$interface" ] ; then
+	interface="default"
+    fi
+fi
+
+save_var TargetPort 3260 # in case the port was not defined via command line we assign a default port
+
--- /dev/null
+++ b/etc/mkinitrd/mkinitrd-stop.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+#%stage: setup
+#%provides: killprogs
+#
+#%if: "$root_iscsi"
+#%dontshow
+#
+##### kill iscsi
+##
+## Because we will run and use the iSCSI daemon from the new root
+## the old one has to be killed. During that time no iSCSI 
+## exceptions should occur!
+##
+## Command line parameters
+## -----------------------
+##
+
+# kill iscsid, will be restarted from the real root
+iscsi_pid=$(pidof iscsid)
+[ "$iscsi_pid" ] && kill -TERM $iscsi_pid

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File open-iscsi-add-mkinitrd-scriptlets of Package open-iscsi (Revision 34cfe65cd179ecd537db4e8b0097c558)

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