Adding upstream version 4.0~a14.

[live-boot-grml.git] / components / 9990-mount-iscsi.sh

diff --git a/components/9990-mount-iscsi.sh b/components/9990-mount-iscsi.sh
new file mode 100755 (executable)
index 0000000..c9bab90
--- /dev/null
+++ b/components/9990-mount-iscsi.sh
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+#set -e
+
+do_iscsi()
+{
+       do_netsetup
+       #modprobe ib_iser
+       modprobe iscsi_tcp
+       local debugopt
+       debugopt=""
+       [ "${LIVE_BOOT_DEBUG}" = "true" ] && debugopt="-d 8"
+       #FIXME this name is supposed to be unique - some date + ifconfig hash?
+       ISCSI_INITIATORNAME="iqn.1993-08.org.debian.live:01:$(echo "${HWADDR}" | sed -e s/://g)"
+       export ISCSI_INITIATORNAME
+       if [ -n "${ISCSI_SERVER}" ] ; then
+               iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_SERVER}" -p "${ISCSI_PORT}"
+       else
+               iscsistart $debugopt -i "${ISCSI_INITIATORNAME}" -t "${ISCSI_TARGET}" -g 1 -a "${ISCSI_PORTAL}" -p 3260
+       fi
+       if [ $? != 0 ]
+       then
+               panic "Failed to log into iscsi target"
+       fi
+       local host
+       host="$(ls -d /sys/class/scsi_host/host*/device/iscsi_host:host* \
+                     /sys/class/scsi_host/host*/device/iscsi_host/host* | sed -e 's:/device.*::' -e 's:.*host::')"
+       if [ -n "${host}" ]
+       then
+               local devices i
+               devices=""
+               i=0
+               while [ -z "${devices}" -a $i -lt 60 ]
+               do
+                       sleep 1
+                       devices="$(ls -d /sys/class/scsi_device/${host}*/device/block:* \
+                                        /sys/class/scsi_device/${host}*/device/block/* | sed -e 's!.*[:/]!!')"
+                       i=$(expr $i + 1)
+                       echo -ne $i\\r
+               done
+               for dev in $devices
+               do
+                       if check_dev "null" "/dev/$dev"
+                       then
+                               NETBOOT="iscsi"
+                               export NETBOOT
+                               return 0;
+                       fi
+               done
+               panic "Failed to locate a live device on iSCSI devices (tried: $devices)."
+       else
+               panic "Failed to locate iSCSI host in /sys"
+       fi
+}