Starting tun2socks using init rc file

[7storm7]

Hi,
I have been trying to start tun2socks using init rc file as a system_ext service during Android startup in my AOSP project. The rc file is executed and tun2socks seems to be called. But it is exiting with status 1 without any error or selinux violation:
I init : Service 'tun2socks' (pid 3476) exited with status 1
My init_tun2socks.rc content:

on early-init
    write /dev/kmsg "tun2socks: early-init triggered"

service tun2socks /system_ext/bin/tun2socks --device tun://tun0 -proxy socks5://<SOCKS server IP address>:1081 -fwmark 1 -tun-post-up "/system_ext/bin/tun2socks_post_setup.sh"
    user root
    group system root inet net_admin
    class main
    capabilities NET_RAW NET_ADMIN                                                                                                                                                                                 
    seclabel u:r:tun2socks:s0
    disabled 

on property:sys.boot_completed=1
    write /dev/kmsg "tun2socks: sys.boot_completed=1 detected, attempting to start tun2socks service."
    start tun2socks
    write /dev/kmsg "tun2socks: start tun2socks command issued."

Do anyone have any experience about the setup in rc file or selinux to start tun2socks as part of Android startup (via init)?