27 lines
708 B
Bash
27 lines
708 B
Bash
# Copyright (C) 2019 Robert Marko <robimarko@gmail.com>
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# Copyright (C) 2019 Roger Pueyo Centelles <roger.pueyo@guifi.net>
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#
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# Helper function to extract MAC addresses and calibration data for MikroTik
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#
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mikrotik_caldata_extract() {
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local part=$1
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local offset=$(($2))
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local count=$(($3))
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local mtd
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local erdfile="/tmp/erd.bin"
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local fwfile="/lib/firmware/${FIRMWARE}"
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[ -e $fwfile ] && exit 0
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mtd=$(find_mtd_chardev $part)
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[ -n "$mtd" ] || caldata_die "no mtd device found for partition $part"
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rbextract -e $mtd $erdfile
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dd if=$erdfile of=$fwfile iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
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caldata_die "failed to extract calibration data from $mtd"
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rm -f $erdfile
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}
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