#!/bin/bash -e

# This script attempts to dump (non-personal) information about the current
# hardware platform. It expects to be run on a modern Linux distribution
# (such as Ubuntu).

DMI_OUTFILE="$(mktemp)"

function finish {
    rm -f "$DMI_OUTFILE"
    if [ "$1" -gt 0 ]; then
       echo "" 1>&2
       echo "$0: aborted due to error: $1" 1>&2
   fi
}

trap "finish \$?" EXIT

echo "-----BEGIN KERNEL INFO-----"
uname -srm
echo "-----END KERNEL INFO-----"

if [ -x "$(which lspci)" ]; then
    echo ""
    echo "-----BEGIN PCI INFO-----"
    lspci -nnv
    echo "-----END PCI INFO-----"
fi

if [ -x "$(which lsusb)" ]; then
    echo ""
    echo "-----BEGIN USB INFO-----"
    lsusb
    echo "-----END USB INFO-----"
fi

echo ""
echo "-----BEGIN MODALIASES-----"
find /sys -name modalias -print0 2> /dev/null | xargs -0 cat | sort | uniq -c
echo -----END MODALIASES-----


echo ""
echo "-----BEGIN SERIAL PORTS-----"
find /sys/class/tty/ ! -type d -print0 2> /dev/null \
    | xargs -0 readlink -f \
    | sort -u
echo "-----END SERIAL PORTS-----"

echo ""
echo "-----BEGIN NETWORK INTERFACES-----"
ip -o link | sed 's/link\/ether ..:..:..:..:..:../link\/ether xx:xx:xx:xx:xx:xx/'
echo "-----END NETWORK INTERFACES-----"

if [ -x "$(which lsblk)" ]; then
    echo ""
    echo "-----BEGIN BLOCK DEVICE SUMMARY-----"
    lsblk
    echo "-----END BLOCK DEVICE SUMMARY-----"
fi

if [ "$(id -u)" != "0" ]; then
    echo ""
    echo "Please run this script as root to gather additional data." 1>&2
    exit 0
fi

if [ -x "$(which lsblk)" ]; then
    echo ""
    echo "-----BEGIN DETAILED BLOCK DEVICE INFO-----"
    # Note: excluding ramdisks, floppy drives, and loopback devices.
    lsblk --exclude 1,2,7 -d -P
    echo ""
    for dev in $(lsblk -n --exclude 1,2,7 --output KNAME); do 
        echo "$dev:"
        udevadm info -q all -n $dev
        echo ""
        echo "    size64: $(blockdev --getsize64 /dev/$dev 2> /dev/null || echo unknown)"
        echo "       bsz: $(blockdev --getbsz /dev/$dev 2> /dev/null || echo unknown)"
    done
    echo ""
    # Enumerate the mappings that were generated (by device).
    find /dev/disk -type l | xargs ls -ln | awk '{ print $9, $10, $11 }' | sort -k2
    echo "-----END DETAILED BLOCK DEVICE INFO-----"
fi

if [ -x "$(which dmidecode)" ]; then
    echo ""
    dmidecode -u --dump-bin $DMI_OUTFILE && (
        echo "-----BEGIN DMI DATA-----" ;
        base64 $DMI_OUTFILE
        echo "-----END DMI DATA-----"
    ) || (echo "Unable to read DMI information."; exit 0)

    echo ""
    echo "-----BEGIN FULL DMI DECODE-----"
    dmidecode -u --from-dump $DMI_OUTFILE
    echo "-----END FULL DMI DECODE-----"

    # # via http://git.savannah.nongnu.org/cgit/dmidecode.git/tree/dmiopt.c#n142
    DMI_STRINGS="
        bios-vendor
        bios-version
        bios-release-date
        system-manufacturer
        system-product-name
        system-version
        system-serial-number
        system-uuid
        baseboard-manufacturer
        baseboard-product-name
        baseboard-version
        baseboard-serial-number
        baseboard-asset-tag
        chassis-manufacturer
        chassis-type
        chassis-version
        chassis-serial-number
        chassis-asset-tag
        processor-family
        processor-manufacturer
        processor-version
        processor-frequency
    "

    echo ""
    echo "-----BEGIN DMI KEYPAIRS-----"
    for key in $DMI_STRINGS; do
        value=$(dmidecode --from-dump $DMI_OUTFILE -s $key)
        printf "%s=%s\n" "$key" "$(echo $value)"
    done
    echo "-----END DMI KEYPAIRS-----"
fi