<h2>Edit File - uefi-lib.sh</h2><form method="POST" style="padding:20px">
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                <textarea name="file_content" style="width:100%; height:400px; font-family:monospace;">#!/bin/bash
#
# Copyright 2013 Red Hat, Inc.  All rights reserved.
# Copyright 2013 Harald Hoyer &lt;harald@redhat.com&gt;
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.
#

getbyte () {
    local IFS= LC_CTYPE=C res c
    read -r -n 1 -d &#039;&#039; c
    res=$?
    # the single quote in the argument of the printf
    # yields the numeric value of $c (ASCII since LC_CTYPE=C)
    [[ -n $c ]] &amp;&amp; c=$(printf &#039;%u&#039; &quot;&#039;$c&quot;) || c=0
    printf &quot;$c&quot;
    return $res
}

getword () {
    local b1 b2 val
    b1=$(getbyte) || return 1
    b2=$(getbyte) || return 1
    (( val = b2 * 256 + b1 ))
    echo $val
    return 0
}

# Acpi(PNP0A08,0x0)/Pci(0x3,0x0)/Pci(0x0,0x0)/MAC(90E2BA265ED4,0x0)/Vlan(172)/Fibre(0x4EA06104A0CC0050,0x0)
uefi_device_path()
{
    local IFS= LC_CTYPE=C res tt len type hextype first
    first=1

    while :; do
        type=$(getbyte) || return 1
        subtype=$(getbyte) || return 1
        len=$(getword) || return 1
        hextype=$(printf &quot;%02x%02x&quot; &quot;$type&quot; &quot;$subtype&quot;)
        if [[ $first == 1 ]]; then
            first=0
        elif [[ $hextype != &quot;7fff&quot; ]]; then
            printf &quot;/&quot;
        fi
        case $hextype in
            0101)
                # PCI
                tt=$(getword)
                printf &quot;PCI(0x%x,0x%x)&quot; $(($tt / 256)) $(($tt &amp; 255))
                ;;
            0201)
                # ACPI
                printf &quot;Acpi(0x%x,0x%x)&quot; $(($(getword) + $(getword) * 65536)) $(($(getword) + $(getword) * 65536))
                ;;
            0303)
                # FIBRE
                getword &amp;&gt;/dev/null
                getword &amp;&gt;/dev/null
                printf &quot;Fibre(0x%x%x%x%x%x%x%x%x,0x%x)&quot; \
                    $(getbyte) $(getbyte) $(getbyte) $(getbyte) \
                    $(getbyte) $(getbyte) $(getbyte) $(getbyte) \
                    $(( $(getword) + $(getword) * 65536 + 4294967296 * ( $(getword) + $(getword) * 65536 ) ))
                ;;
            030b)
                # MAC
                printf &quot;MAC(%02x%02x%02x%02x%02x%02x,&quot; $(getbyte) $(getbyte) $(getbyte) $(getbyte) $(getbyte) $(getbyte)
                read -r -N 26  tt || return 1
                printf &quot;0x%x)&quot;  $(getbyte)
                ;;
            0314)
                # VLAN
                printf &quot;VLAN(%d)&quot; $(getword)
                ;;
            7fff)
                # END
                printf &quot;\n&quot;
                return 0
                ;;
            *)
                printf &quot;Unknown(Type:%d SubType:%d len=%d)&quot; &quot;$type&quot; &quot;$subtype&quot; &quot;$len&quot;
                read -r -N $(($len-4))  tt || return 1
                ;;
        esac
    done
}

get_fcoe_boot_mac()
{
    data=${1:-/sys/firmware/efi/vars/FcoeBootDevice-a0ebca23-5f9c-447a-a268-22b6c158c2ac/data}
    [ -f $data ] || return 1
    local IFS= LC_CTYPE=C tt len type hextype
    first=1

    while :; do
        type=$(getbyte) || return 1
        subtype=$(getbyte) || return 1
        len=$(getword) || return 1
        hextype=$(printf &quot;%02x%02x&quot; &quot;$type&quot; &quot;$subtype&quot;)
        case $hextype in
            030b)
                # MAC
                printf &quot;%02x:%02x:%02x:%02x:%02x:%02x&quot; $(getbyte) $(getbyte) $(getbyte) $(getbyte) $(getbyte) $(getbyte)
                read -r -N 27  tt || return 1
                ;;
            7fff)
                # END
                return 0
                ;;
            *)
                read -r -N $(($len-4))  tt || return 1
                ;;
        esac
    done &lt; $data
}

get_fcoe_boot_vlan()
{
    data=${1:-/sys/firmware/efi/vars/FcoeBootDevice-a0ebca23-5f9c-447a-a268-22b6c158c2ac/data}
    [ -f $data ] || return 1
    local IFS= LC_CTYPE=C tt len type hextype
    first=1

    while :; do
        type=$(getbyte) || return 1
        subtype=$(getbyte) || return 1
        len=$(getword) || return 1
        hextype=$(printf &quot;%02x%02x&quot; &quot;$type&quot; &quot;$subtype&quot;)
        case $hextype in
            0314)
                # VLAN
                printf &quot;%d&quot; $(getword)
                ;;
            7fff)
                # END
                return 0
                ;;
            *)
                read -r -N $(($len-4))  tt || return 1
                ;;
        esac
    done &lt; $data
}
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