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51 lines
1.1 KiB
51 lines
1.1 KiB
#!/bin/bash |
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# |
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# fc_wwpn_id |
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# |
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# Generates device node names links based on FC WWPN |
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# Copyright (c) 2016 Hannes Reinecke, SUSE Linux GmbH |
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# |
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# This program is free software; you can redistribute it and/or modify it |
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# under the terms of the GNU General Public License as published by the |
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# Free Software Foundation version 2 of the License. |
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# |
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DEVPATH=$1 |
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SCSIPATH=$(cd -P "/sys$DEVPATH/device" || exit; echo "$PWD") |
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d=$SCSIPATH |
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[ -d "$d/scsi_disk" ] || exit 0 |
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target_lun=${d##*:} |
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while [ -n "$d" ] ; do |
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d=${d%/*} |
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e=${d##*/} |
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case "$e" in |
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rport*) |
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rport=$e |
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rport_dir="/sys/class/fc_remote_ports/$rport" |
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if [ -d "$rport_dir" ] ; then |
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rport_wwpn=$(cat "$rport_dir/port_name") |
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fi |
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;; |
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host*) |
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host=$e |
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host_dir="/sys/class/fc_host/$host" |
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if [ -d "$host_dir" ] ; then |
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host_wwpn=$(cat "$host_dir/port_name") |
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break; |
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fi |
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esac |
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done |
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if [ -n "$rport_wwpn" ] || [ -n "$host_wwpn" ] ; then |
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echo "FC_TARGET_LUN=$target_lun" |
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fi |
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if [ -n "$rport_wwpn" ] ; then |
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echo "FC_TARGET_WWPN=$rport_wwpn" |
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fi |
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if [ -n "$host_wwpn" ] ; then |
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echo "FC_INITIATOR_WWPN=$host_wwpn" |
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fi
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