check /dev/net/tun existence
check /dev/net/tun existence

Spacecup/ShadowVPN,qskycolor/ShadowVPN,noikiy/ShadowVPN,bjrara/ShadowVPN,nsdown/ShadowVPN,tdh62/ShadowVPN,nsdown/ShadowVPN,nsdown/ShadowVPN,AI0day/ShadowVPN,AI0day/ShadowVPN,zhufenggood/ShadowVPN,test1943/ShadowVPN,bjrara/ShadowVPN,xiaguangme/ShadowVPN,Spacecup/ShadowVPN,sunclx/ShadowVPN,noikiy/ShadowVPN,xiaguangme/ShadowVPN,li77leprince/ShadowVPN,sunclx/ShadowVPN,li77leprince/ShadowVPN,qskycolor/ShadowVPN,test1943/ShadowVPN,tdh62/ShadowVPN,froggatt/ShadowVPN,zhufenggood/ShadowVPN,froggatt/ShadowVPN