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Preview: fc_wwpn_id Size: 1.10 KB

//lib/udev/fc_wwpn_id

#!/bin/bash
#
# fc_wwpn_id
#
# Generates device node names links based on FC WWPN
# Copyright (c) 2016 Hannes Reinecke, SUSE Linux GmbH
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation version 2 of the License.
#

DEVPATH=$1
SCSIPATH=$(cd -P "/sys$DEVPATH/device" || exit; echo "$PWD")

d=$SCSIPATH
[ -d "$d/scsi_disk" ] || exit 0
target_lun=${d##*:}

while [ -n "$d" ] ; do
    d=${d%/*}
    e=${d##*/}
    case "$e" in
	rport*)
	    rport=$e
	    rport_dir="/sys/class/fc_remote_ports/$rport"
	    if [ -d "$rport_dir" ] ; then
		rport_wwpn=$(cat "$rport_dir/port_name")
	    fi
	    ;;
	host*)
	    host=$e
	    host_dir="/sys/class/fc_host/$host"
	    if [ -d "$host_dir" ] ; then
		host_wwpn=$(cat "$host_dir/port_name")
		break;
	    fi
    esac
done

if [ -n "$rport_wwpn" ] || [ -n "$host_wwpn" ] ; then
    echo "FC_TARGET_LUN=$target_lun"
fi

if [ -n "$rport_wwpn" ] ; then
    echo "FC_TARGET_WWPN=$rport_wwpn"
fi

if [ -n "$host_wwpn" ] ; then
    echo "FC_INITIATOR_WWPN=$host_wwpn"
fi

Name	Size	Perms	Modified	Actions
hwdb.d DIR	-	drwxr-xr-x	2026-01-27 23:01:13	Edit Download recursive recursive
rules.d DIR	-	drwxr-xr-x	2026-02-03 09:56:06	Edit Download recursive recursive
ata_id	40.73 KB	lrwxr-xr-x	2026-01-26 09:30:39	Edit Download recursive recursive
cdrom_id	32.51 KB	lrwxr-xr-x	2026-01-26 09:30:39	Edit Download recursive recursive
collect	20.57 KB	lrwxr-xr-x	2026-01-26 09:30:39	Edit Download recursive recursive
fc_wwpn_id	1.10 KB	lrwxr-xr-x	2022-10-08 11:49:23	Edit Download recursive recursive
fido_id	16.43 KB	lrwxr-xr-x	2026-01-26 09:30:39	Edit Download recursive recursive
kdump-udev-throttler	1.41 KB	lrwxr-xr-x	2024-09-24 08:36:00	Edit Download recursive recursive
kpartx_id	2.33 KB	lrwxr-xr-x	2025-04-22 01:55:39	Edit Download recursive recursive
mtd_probe	12.41 KB	lrwxr-xr-x	2026-01-26 09:30:39	Edit Download recursive recursive
prefixdevname	1.46 MB	lrwxr-xr-x	2019-12-16 19:52:38	Edit Download recursive recursive
rename_device	16.46 KB	lrwxr-xr-x	2025-11-04 09:19:14	Edit Download recursive recursive
scsi_id	53.70 KB	lrwxr-xr-x	2026-01-26 09:30:39	Edit Download recursive recursive
v4l_id	12.00 KB	lrwxr-xr-x	2026-01-26 09:30:39	Edit Download recursive recursive

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