miraclecast/res/miracle-utils.sh

#http://lxr.linux.no/linux+v3.0/include/linux/if_arp.h#L67
ARPHRD_LOOPBACK=772

#
# Find all interfaces except loopback one
#
function find_choosable_networknames {
   for i in $( ls /sys/class/net )
   do 
      if [ $( cat /sys/class/net/$i/type ) != $ARPHRD_LOOPBACK ] 
      then
         echo $i
      fi
   done
}

#
# find wireless interfaces
#
function find_wireless_network_interfaces {
   for i in $( find_choosable_networknames )
   do 
      if [ -d /sys/class/net/$i/wireless ]
      then
         echo $i
      fi
   done
}

#
# test if interface is connected
#
function is_interface_connected {
   test x$( cat /sys/class/net/$1/carrier 2>/dev/null) = x1
}

#
# find wireless connected interfaces
#
function find_wireless_connected_network_interfaces {
   for i in $( find_wireless_network_interfaces )
   do 
      if is_interface_connected $i
      then
         echo $i
      fi
   done
}

#
# find physical for interface if exists
#
function find_physical_for_network_interface {
   PHY_INDEX=$(iw dev $1 info | grep wiphy | awk '{print $2}')
   if [ -n "$PHY_INDEX" ]
   then
      echo phy$PHY_INDEX
   fi
}

#
# Check interface for P2P capabilities
#
function search_p2p_capabilities {
   WI_DEVICE=$1
   PHY_DEVICE=$(find_physical_for_network_interface $WI_DEVICE)

   if [ -z "$PHY_DEVICE" ]
   then
      echo "cannot find physical device for $WI_DEVICE"
      return
   fi

   if iw phy $PHY_DEVICE info | grep -Pzo "(?s)Supported interface modes.*Supported commands" | grep "P2P" &> /dev/null
   then
      echo $WI_DEVICE supports P2P
   else
      echo Sorry, $WI_DEVICE do not support P2P
      exit 1
   fi
}

#
# show wpa_supplicant command
#
function show_wpa_supplicant_process {
   ps -ef | grep "wpa_supplican[t] "
}

#
# show wpa_supplicant command
#
function show_wpa_supplicant_command {
   show_wpa_supplicant_process | awk '{print substr($0, index($0,$8))}'
}

#
# find wpa_supplicant pid
#
function find_wpa_supplicant_pid {
   show_wpa_supplicant_process | awk '{print $2}'
}

#
# checking if distro is archlinux
#
function check_archlinux_distro {
   test -f "/etc/arch-release"
}

#
# checking if distro is ubuntu
#
function check_ubuntu_distro {
   cat /proc/version | grep -i ubuntu
}

#
# checking if distro is debian
#
function check_debian_distro {
   cat /proc/version | grep -i debian
}

#
# checking if ubuntu use service
#
function ubuntu_using_systemd {
   test $( lsb_release -r | awk '{print $2}' | cut -d . -f 1 ) -ge 15
}

#
# checking if debian use service
#
function debian_using_systemd {
   test $( lsb_release -r | awk '{print $2}' | cut -d . -f 1 ) -ge 8
}

#
# Stop network manager
#
function stop_network_manager {
   stop_service_network_manager
   stop_systemd_network_manager
}

#
# stop Network manager from service
#
function stop_service_network_manager {
   if ( check_ubuntu_distro && ! ubuntu_using_systemd ) || ( check_debian_distro && ! debian_using_systemd )
   then
      echo stopping NetworkManager using service
      sudo service NetworkManager stop
   fi
}

#
# stop Network manager from systemd
#
function stop_systemd_network_manager {
   if check_arch_linux_distro || ( check_ubuntu_distro && ubuntu_using_systemd ) || ( check_debian_distro && debian_using_systemd )
   then
      echo stopping NetworkManager using systemctl
      sudo systemctl stop Network.service
   fi
}

#
#
#
function start_network_manager {
   start_service_network_manager
   start_systemd_network_manager
}

#
# start Network manager with service
#
function start_service_network_manager {
   if ( check_ubuntu_distro && ! ubuntu_using_systemd ) || ( check_debian_distro && ! debian_using_systemd )
   then
      echo starting NetworkManager with service
      sudo service NetworkManager start
      sudo wpa_supplicant -B -u -s -O /var/run/wpa_supplicant
   fi
}

#
# start Network manager with systemd
#
function start_systemd_network_manager {
   if check_arch_linux_distro || ( check_ubuntu_distro && ubuntu_using_systemd ) || ( check_debian_distro && debian_using_systemd )
   then
      echo starting NetworkManager
      sudo systemctl start NetworkManager
   fi
}