/lib/netifd/proto/3g.sh OpenWRT 15.05.1 Huwaei 4G/LTE e3372s

#!/bin/sh
INCLUDE_ONLY=1

. ../netifd-proto.sh
. ./ppp.sh
init_proto "$@"

proto_3g_init_config() {
        no_device=1
        available=1
        ppp_generic_init_config
        proto_config_add_string "device:device"
        proto_config_add_string "apn"
        proto_config_add_string "service"
        proto_config_add_string "pincode"
        proto_config_add_string "dialnumber"
}

proto_3g_setup() {
        local interface="$1"
        local chat

        json_get_var device device
        json_get_var apn apn
        json_get_var service service
        json_get_var pincode pincode
        json_get_var dialnumber dialnumber

        [ -e "$device" ] || {
                proto_set_available "$interface" 0
                return 1
        }

        case "$service" in
                cdma|evdo)
                        chat="/etc/chatscripts/evdo.chat"
                ;;
                *)
                        chat="/etc/chatscripts/3g.chat"
#                       cardinfo=$(gcom -d "$device" -s /etc/gcom/getcardinfo.gcom)
                        cardinfo="huawei"
                        if echo "$cardinfo" | grep -q Novatel; then
                                case "$service" in
                                        umts_only) CODE=2;;
                                        gprs_only) CODE=1;;
                                        *) CODE=0;;
                                esac
                                export MODE="AT\$NWRAT=${CODE},2"
                        elif echo "$cardinfo" | grep -q Option; then
                                case "$service" in
                                        umts_only) CODE=1;;
                                        gprs_only) CODE=0;;
                                        *) CODE=3;;
                                esac
                                export MODE="AT_OPSYS=${CODE}"
                        elif echo "$cardinfo" | grep -q "Sierra Wireless"; then
                                SIERRA=1
                        elif echo "$cardinfo" | grep -qi huawei; then
                                case "$service" in
                                        umts_only) CODE="14,2";;
                                        gprs_only) CODE="13,1";;
                                        *) CODE="0302";;
                                esac
#                               export MODE="AT^SYSCFGEX=${CODE},3FFFFFFF,2,4"
                                export MODE='AT^SYSCFGEX="0302",3FFFFFFF,2,4,7FFFFFFFFFFFFFFF,,'
                        fi

#                       if [ -n "$pincode" ]; then
#                               PINCODE="$pincode" gcom -d "$device" -s /etc/gcom/setpin.gcom || {
#                                       proto_notify_error "$interface" PIN_FAILED
#                                       proto_block_restart "$interface"
#                                       return 1
#                               }
#                       fi
                        [ -n "$MODE" ] && gcom -d "$device" -s /etc/gcom/setmode.gcom

                        # wait for carrier to avoid firmware stability bugs
#                       [ -n "$SIERRA" ] && {
#                               gcom -d "$device" -s /etc/gcom/getcarrier.gcom || return 1
#                       }

                        if [ -z "$dialnumber" ]; then
                                dialnumber="*99***1#"
                        fi

                ;;
        esac

        connect="${apn:+USE_APN=$apn }DIALNUMBER=$dialnumber /usr/sbin/chat -t5 -v -E -f $chat"
        ppp_generic_setup "$interface" \
                noaccomp \
                nopcomp \
                novj \
                nobsdcomp \
                noauth \
                lock \
                crtscts \
                115200 "$device"
        return 0
}

proto_3g_teardown() {
        proto_kill_command "$interface"
}

add_protocol 3g