OpenWrt – Rev 2

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#!/bin/sh

. /lib/functions.sh
. ../netifd-proto.sh
init_proto "$@"

INCLUDE_ONLY=1

ctl_device=""
dat_device=""

proto_mbim_setup() { echo "wwan[$$] mbim proto is missing"; }
proto_qmi_setup() { echo "wwan[$$] qmi proto is missing"; }
proto_ncm_setup() { echo "wwan[$$] ncm proto is missing"; }
proto_3g_setup() { echo "wwan[$$] 3g proto is missing"; }
proto_directip_setup() { echo "wwan[$$] directip proto is missing"; }

[ -f ./mbim.sh ] && . ./mbim.sh
[ -f ./ncm.sh ] && . ./ncm.sh
[ -f ./qmi.sh ] && . ./qmi.sh
[ -f ./3g.sh ] && { . ./ppp.sh; . ./3g.sh; }
[ -f ./directip.sh ] && . ./directip.sh

proto_wwan_init_config() {
        available=1
        no_device=1

        proto_config_add_string apn
        proto_config_add_string auth
        proto_config_add_string username
        proto_config_add_string password
        proto_config_add_string pincode
        proto_config_add_string delay
        proto_config_add_string modes
}

proto_wwan_setup() {
        local driver usb devicename desc

        for a in `ls /sys/bus/usb/devices`; do
                local vendor product
                [ -z "$usb" -a -f /sys/bus/usb/devices/$a/idVendor -a -f /sys/bus/usb/devices/$a/idProduct ] || continue
                vendor=$(cat /sys/bus/usb/devices/$a/idVendor)
                product=$(cat /sys/bus/usb/devices/$a/idProduct)
                [ -f /lib/network/wwan/$vendor:$product ] && {
                        usb=/lib/network/wwan/$vendor:$product
                        devicename=$a
                }
        done

        [ -n "$usb" ] && {
                local old_cb control data

                json_set_namespace wwan old_cb
                json_init
                json_load "$(cat $usb)"
                json_select
                json_get_vars desc control data
                json_set_namespace $old_cb

                [ -n "$control" -a -n "$data" ] && {
                        ttys=$(ls -d /sys/bus/usb/devices/$devicename/${devicename}*/tty?* /sys/bus/usb/devices/$devicename/${devicename}*/tty/tty?* | sed "s/.*\///g" | tr "\n" " ")
                        ctl_device=/dev/$(echo $ttys | cut -d" " -f $((control + 1)))
                        dat_device=/dev/$(echo $ttys | cut -d" " -f $((data + 1)))
                        driver=comgt
                }
        }

        [ -z "$ctl_device" ] && for net in $(ls /sys/class/net/ | grep -e wwan -e usb); do
                [ -z "$ctl_device" ] || continue
                driver=$(grep DRIVER /sys/class/net/$net/device/uevent | cut -d= -f2)
                case "$driver" in
                qmi_wwan|cdc_mbim)
                        ctl_device=/dev/$(ls /sys/class/net/$net/device/usbmisc)
                        ;;
                sierra_net|cdc_ether|*cdc_ncm)
                        ctl_device=/dev/$(cd /sys/class/net/$net/; find ../../../ -name ttyUSB* |xargs -n1 basename | head -n1)
                        ;;
                *) continue;;
                esac
                echo "wwan[$$]" "Using proto:$proto device:$ctl_device iface:$net desc:$desc"
        done

        [ -n "$ctl_device" ] || {
                echo "wwan[$$]" "No valid device was found"
                proto_notify_error "$interface" NO_DEVICE
                proto_block_restart "$interface"
                return 1
        }

        uci_set_state network $interface driver "$driver"
        uci_set_state network $interface ctl_device "$ctl_device"
        uci_set_state network $interface dat_device "$dat_device"

        case $driver in
        qmi_wwan)               proto_qmi_setup $@ ;;
        cdc_mbim)               proto_mbim_setup $@ ;;
        sierra_net)             proto_directip_setup $@ ;;
        comgt)                  proto_3g_setup $@ ;;
        cdc_ether|*cdc_ncm)     proto_ncm_setup $@ ;;
        esac
}

proto_wwan_teardown() {
        local interface=$1
        local driver=$(uci_get_state network $interface driver)
        ctl_device=$(uci_get_state network $interface ctl_device)
        dat_device=$(uci_get_state network $interface dat_device)

        case $driver in
        qmi_wwan)               proto_qmi_teardown $@ ;;
        cdc_mbim)               proto_mbim_teardown $@ ;;
        sierra_net)             proto_directip_teardown $@ ;;
        comgt)                  proto_3g_teardown $@ ;;
        cdc_ether|*cdc_ncm)     proto_ncm_teardown $@ ;;
        esac
}

add_protocol wwan