#!/bin/bash ##################################################################################### # ADS-B RECEIVER # ##################################################################################### # # # This script is not meant to be executed directly. # # Instead execute install.sh to begin the installation process. # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # Copyright (c) 2016-2017, Joseph A. Prochazka & Romeo Golf # # # # Permission is hereby granted, free of charge, to any person obtaining a copy # # of this software and associated documentation files (the "Software"), to deal # # in the Software without restriction, including without limitation the rights # # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # # copies of the Software, and to permit persons to whom the Software is # # furnished to do so, subject to the following conditions: # # # # The above copyright notice and this permission notice shall be included in all # # copies or substantial portions of the Software. # # # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # # SOFTWARE. # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ################################################################################# # Detect if a package is installed and if not attempt to install it. function CheckPackage { ATTEMPT=1 MAXATTEMPTS=5 WAITTIME=5 while (( ${ATTEMPT} -le `(($MAXATTEMPTS + 1))` )); do # If the maximum attempts has been reached... if [[ "${ATTEMPT}" -gt "${MAXATTEMPTS}" ]] ; then echo -e "" echo -e "\e[91m \e[5mINSTALLATION HALTED!\e[25m" echo -e " UNABLE TO INSTALL A REQUIRED PACKAGE." echo -e " SETUP HAS BEEN TERMINATED!" echo -e "" echo -e "\e[93mThe package \"$1\" could not be installed in ${MAXATTEMPTS} attempts.\e[39m" echo -e "" exit 1 fi # Check if the package is already installed. printf "\e[94m Checking if the package $1 is installed..." if [[ $(dpkg-query -W -f='${STATUS}' $1 2>/dev/null | grep -c "ok installed") -eq 0 ]] ; then # If this is not the first attempt at installing this package... if [[ ${ATTEMPT} -gt 1 ]] ; then echo -e "\e[91m \e[5m[INSTALLATION ATTEMPT FAILED]\e[25m" echo -e "\e[94m Attempting to Install the package $1 again in ${WAITTIME} seconds (ATTEMPT ${ATTEMPT} OF ${MAXATTEMPTS})..." sleep ${WAITTIME} else echo -e "\e[91m [NOT INSTALLED]" echo -e "\e[94m Installing the package $1..." fi # Attempt to install the required package. echo -e "\e[97m" ATTEMPT=$((ATTEMPT+1)) sudo apt-get install -y $1 echo -e "\e[39m" else # The package appears to be installed. echo -e "\e[92m [OK]\e[39m" break fi done } ################################################################################# # Change a setting in a configuration file. # The function expects 3 parameters to be passed to it in the following order. # ChangeConfig KEY VALUE FILE function ChangeConfig { # Use sed to locate the "KEY" then replace the "VALUE", the portion after the equals sign, in the specified "FILE". # This function should work with any configuration file with settings formated as KEY="VALUE". sudo sed -i -e "s/\($1 *= *\).*/\1\"$2\"/" $3 } function GetConfig { # Use sed to locate the "KEY" then read the "VALUE", the portion after the equals sign, in the specified "FILE". # This function should work with any configuration file with settings formated as KEY="VALUE". echo `sed -n "/^$1 *= *\"\(.*\)\"$/s//\1/p" $2` } function CommentConfig { if [[ ! `grep -cFx "#${1}" $2` -gt 0 ]] ; then # Use sed to locate the "KEY" then comment out the line containing it in the specified "FILE". sudo sed -i "/${1}/ s/^/#/" $2 fi } function UncommentConfig { if [[ `grep -cFx "#${1}" $2` -gt 0 ]] ; then # Use sed to locate the "KEY" then uncomment the line containing it in the specified "FILE". sudo sed -i "/#${1}*/ s/#*//" $2 fi } ################################################################################# # The following function is used to clean up the log files by removing # any color escaping sequences from the log file so it is easier to read. # There are other lines not needed which can be removed as well. function CleanLogFile { # Use sed to remove any color sequences from the specified "FILE". sed -i "s,\x1B\[[0-9;]*[a-zA-Z],,g" $1 # Remove the "Press enter to continue..." lines from the log file. sed -i "/Press enter to continue.../d" $1 } ################################################################################# # Detect CPU Architecture. function Check_CPU () { if [[ -z "${CPU_ARCHITECTURE}" ]] ; then echo -en "\e[94m Detecting CPU architecture...\e[97m" export CPU_ARCHITECTURE=`uname -m | tr -d "\n\r"` fi } ################################################################################# # Detect Platform. function Check_Platform () { if [[ -z "${HARDWARE_PLATFORM}" ]] ; then echo -en "\e[94m Detecting hardware platform...\e[97m" if [[ `egrep -c "^Hardware.*: BCM" /proc/cpuinfo` -gt 0 ]] ; then export HARDWARE_PLATFORM="RPI" elif [[ `egrep -c "^Hardware.*: Allwinner sun4i/sun5i Families$" /proc/cpuinfo` -gt 0 ]] ; then export HARDWARE_PLATFORM="CHIP" else export HARDWARE_PLATFORM="unknown" fi fi } ################################################################################# # Detect Hardware Revision. function Check_Hardware () { if [[ -z "${HARDWARE_REVISION}" ]] ; then echo -en "\e[94m Detecting Hardware revision...\e[97m" export HARDWARE_REVISION=`grep "^Revision" /proc/cpuinfo | awk '{print $3}'` fi } ################################################################################# # Blacklist DVB-T drivers for RTL-SDR devices. function BlacklistModules { if [[ ! -f /etc/modprobe.d/rtlsdr-blacklist.conf ]] || [[ `cat /etc/modprobe.d/rtlsdr-blacklist.conf | wc -l` -lt 9 ]] ; then echo -en "\e[94m Installing blacklist to prevent unwanted kernel modules from being loaded...\e[97m" sudo tee ${RECEIVER_KERNEL_MODULE_BLACKLIST} > /dev/null <