#!/bin/bash
#
# Copyright (c) 2012
#
# Authors: Wild Man, Krytarik
# Helpers: chili555
#
# This script gathers the infos necessary for troubleshooting a wireless
# connection and saves them in a text file, wrapping it in an archive if it
# exceeds the size limit of 19.5 kB for .txt files on the Ubuntu Forums.
#
############################################################################
#
# 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 3 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 <http://www.gnu.org/licenses/>.
#

FILEBASE="wireless-info"
MODMATCHES="(air|ar5|ath|carl|at7|iwl|ipw|rt(2|3|5|6|7)|rtl|r(818|871)|8192(cu|du)|ssb|wl|b43|bcma|brcm|eth1|ndis|wlan0|firm|etwork)[^[:punct:] ]*"

exec 3>&1 4>&2
exec 1> $FILEBASE.txt 2> /dev/null
if [ "$?" != "0" ]; then
    printf "\nCannot write output file, aborting.\n\n"
    exit 1
fi

printf "\n########## wireless info START ##########\n"

printf "\n##### release #####\n\n"
lsb_release -idrc

printf "\n##### kernel #####\n\n"
uname -a

printf "\n##### lspci #####\n\n"
lspci -nnk | grep -iA2 net | sed 's/^--$//'

printf "\n##### lsusb #####\n\n"
lsusb

printf "\n##### PCMCIA Card Info #####\n\n"
pccardctl info

printf "\n##### rfkill #####\n\n"
rfkill list all

printf "\n##### iw reg get #####\n\n"
iw reg get

printf "\n##### interfaces #####\n\n"
sed 's/wpa-psk [[:graph:]]\+/wpa-psk <WPA key removed>/' /etc/network/interfaces

printf "\n##### iwconfig #####\n\n"
iwconfig

printf "\n##### route #####\n\n"
route -n

printf "\n##### resolv.conf #####\n\n"
grep -v '^#' /etc/resolv.conf

printf "\n##### nm-tool #####\n"
nm-tool

printf "\n##### NetworkManager.state #####\n\n"
cat -s /var/lib/NetworkManager/NetworkManager.state

printf "\n##### NetworkManager.conf #####\n\n"
grep -v '^#' /etc/NetworkManager/NetworkManager.conf
if [ -f /etc/NetworkManager/nm-system-settings.conf ]; then
    printf "nm-system-settings.conf (used up to 10.04):\n"
    grep -v '^#' /etc/NetworkManager/nm-system-settings.conf
fi

printf "\n##### iwlist #####\n\n"
if [ -t 0 ]; then
    sudo iwlist scan || echo "Aquiring of root rights failed."
elif [ -x /usr/bin/gksudo ]; then
    gksudo iwlist scan || echo "Aquiring of root rights failed."
elif [ -x /usr/bin/kdesudo ]; then
    kdesudo iwlist scan || echo "Aquiring of root rights failed."
else
    echo "No way to aquire root rights found."
fi

printf "\n##### iwlist channel #####\n\n"
iwlist chan

printf "\n##### lsmod #####\n\n"
lsmod | egrep "(^|[[:punct:] ])${MODMATCHES}([[:punct:] ]|$)"

printf "\n##### modinfo #####\n\n"
MODULNAMES=$(lsmod | egrep "^$MODMATCHES" | awk '{print $1}')
for MODULE in $MODULNAMES; do
    modinfo $MODULE
    echo
done

printf "\n##### modules #####\n\n"
grep -v '^#' /etc/modules

printf "\n##### blacklist #####\n"
for CONFFILE in /etc/modprobe.d/*.conf; do
    if [[ -n $(egrep -v '/etc/modprobe.d/(alsa-base|blacklist-(firewire|framebuffer|modem|oss|watchdog)|fglrx|nvidia)' <<< $CONFFILE) ]]; then
	BLACKLIST=$(grep '^blacklist' $CONFFILE)
	if [ -n "$BLACKLIST" ]; then
	    printf "\n[%s]\n%s\n" $CONFFILE "$BLACKLIST"
	fi
    fi
done

printf "\n##### udev rules #####\n"
egrep '^(#.*device|[^#]|$)' /etc/udev/rules.d/70-persistent-net.rules

printf "\n##### dmesg #####\n\n"
dmesg | egrep "[[:punct:] ]${MODMATCHES}[[:punct:] ]"

printf "\n########## wireless info END ############\n\n"

exec 1>&3 3>&-
exec 2>&4 4>&-

RESULTS=$(cat -s $FILEBASE.txt)
sed 's/\([[:alnum:]][[:alnum:]]:\)\{5\}[[:alnum:]][[:alnum:]]/<MAC address removed>/' <<< "$RESULTS" > $FILEBASE.txt

if [ $(stat -c %s $FILEBASE.txt) -gt 19968 ]; then
    tar -czf $FILEBASE.tar.gz $FILEBASE.txt
    rm $FILEBASE.txt
    printf "\nResults archived in \"%s.tar.gz\", as they exceed the 19.5 kB size limit for .txt files on the Ubuntu Forums.\n\n" "$FILEBASE"
else
    printf "\nResults saved in \"%s.txt\".\n\n" "$FILEBASE"
fi