#!/bin/sh /etc/rc.common
# Copyright (C) 2006-2014 OpenWrt.org

START=21
STOP=13
USE_PROCD=1

#设置拨号模式
# $1:拨号模式
# set_mode()
# {
# 	#获取AT串口、制造商、模块名
# 	local at_port=$(uci -q get modem.modem$modem_no.at_port)
# 	local manufacturer=$(uci -q get modem.modem$modem_no.manufacturer)
# 	local name=$(uci -q get modem.modem$modem_no.name)

# 	#分制造商设置不同的AT命令
# 	local command
# 	if [ "$manufacturer" = "quectel" ]; then
# 		local mode_num
# 		case $1 in
# 			"qmi") mode_num='0' ;;
# 			"gobinet") mode_num='0' ;;
# 			"ecm") mode_num='1' ;;
# 			"mbim") mode_num='2' ;;
# 			"rndis") mode_num='3' ;;
# 			"ncm") mode_num='5' ;;
# 			*) mode_num='0' ;;
# 		esac

# 		#查询当前拨号模式
# 		command='AT+QCFG="usbnet"'
# 		local at_result=$(sh /usr/share/modem/modem_at.sh $at_port $command)
# 		if [[ "$at_result" != *"$mode_num"* ]]; then
			
# 			#切换到指定的拨号模式
# 			case $1 in
# 				"qmi") command='AT+QCFG="usbnet",0' ;;
# 				"gobinet") command='AT+QCFG="usbnet",0' ;;
# 				"ecm") command='AT+QCFG="usbnet",1' ;;
# 				"mbim") command='AT+QCFG="usbnet",2' ;;
# 				"rndis") command='AT+QCFG="usbnet",3' ;;
# 				"ncm") command='AT+QCFG="usbnet",5' ;;
# 				*) command='AT+QCFG="usbnet",0' ;;
# 			esac
# 			at_result=$(sh /usr/share/modem/modem_at.sh "$at_port" "$command")
# 			#移远切换模式后，还需要重启模块，待测试
# 			sleep 5
# 			modem_scan
#         fi
# 	elif [ "$manufacturer" = "fibocom" ]; then
# 		if [ "$name" = "fm150-ae" ]; then
# 			local mode_num
# 			case $1 in
# 				"qmi") mode_num='32' ;;
# 				"gobinet") mode_num='32' ;;
# 				"ecm") mode_num='23' ;;
# 				"mbim") mode_num='29' ;;
# 				"rndis") mode_num='24' ;;
# 				"ncm") mode_num='23' ;;
# 				*) mode_num='32' ;;
# 			esac

# 			#查询当前拨号模式
# 			command='AT+GTUSBMODE?'
# 			local at_result=$(sh /usr/share/modem/modem_at.sh $at_port $command)
# 			if [[ "$at_result" != *"$mode_num"* ]]; then
# 				#切换到指定的拨号模式
# 				case $1 in
# 					"qmi") command='AT+GTUSBMODE=32' ;;
# 					"gobinet") command='AT+GTUSBMODE=32' ;;
# 					"ecm") command='AT+GTUSBMODE=23' ;;
# 					"mbim") command='AT+GTUSBMODE=29' ;;
# 					"rndis") command='AT+GTUSBMODE=24' ;;
# 					"ncm") command='AT+GTUSBMODE=23' ;;
# 					*) command='AT+GTUSBMODE=32' ;;
# 				esac
# 				at_result=$(sh /usr/share/modem/modem_at.sh "$at_port" "$command")
# 				sleep 5
# 				modem_scan
# 			fi
# 		elif [ "$name" = "fm650" ]; then
# 			#待处理
# 			echo "fm650"
# 		fi
# 	else
# 		#没有匹配到制造商，需要手动切换模块的拨号模式
# 		echo "请手动切换模块的拨号模式"
# 	fi
# }

#设置防火墙
set_firewall()
{
	local num=`uci show firewall | grep "name='wan'" | wc -l`
	local wwan_num=`uci -q get firewall.@zone[$num].network | grep -w "$1" | wc -l`
	if [ "$wwan_num" = "0" ]; then
		uci add_list firewall.@zone[$num].network="$1"
	fi
	uci commit firewall
}

#设置IPv4网络接口
# $1:网络接口名称
# $2:网络接口
set_ipv4_interface()
{
	#配置中不存在这个网络接口配置，或这个网络接口配置的设备不同
	if [ "$(uci -q get network.$1.device)" != "$2" ] && [ "$(uci -q get network.$1.ifname)" != "$2" ]; then
		uci set network.$1='interface'
		uci set network.$1.proto='dhcp'
		uci set network.$1.device="$2"
		uci set network.$1.ifname="$2"
		uci commit network

		#加入WAN防火墙
		set_firewall $1

		#启动网络接口
		ifup $1
	fi
}

#设置IPv6网络接口
# $1:网络接口名称
# $2:网络接口
set_ipv6_interface()
{
	if [ "$(uci -q get network.$1.device)" != "$2" ] && [ "$(uci -q get network.$1.ifname)" != "$2" ] ; then
		uci set network.$1='interface'
		uci set network.$1.proto='dhcpv6'
		uci set network.$1.extendprefix='1'
		uci set network.$1.device="$2"
		uci set network.$1.ifname="$2"
		uci commit network

		#加入WAN防火墙
		set_firewall $1

		#启动网络接口
		ifup $1
	else
		uci set network.$1.extendprefix='1'
		uci commit network
	fi
}

#设置网络接口
# $1:模块序号
# $2:网络接口
set_interface()
{
	case $pdp_type in
		"ipv4") set_ipv4_interface wwan_5g_$1 $2 ;;
		"ipv6") set_ipv6_interface wwan6_5g_$1 $2 ;;
		"ipv4_ipv6") 
			set_ipv4_interface "wwan_5g_$1" $2
			set_ipv6_interface "wwan6_5g_$1" $2
			;;
		*) 
			set_ipv4_interface "wwan_5g_$1" $2
			set_ipv6_interface "wwan6_5g_$1" $2
			;;
	esac
}

qmi()
{
	#设置网络接口
	local network_interface=$(uci -q get modem.modem$modem_no.network_interface)
	set_interface $modem_no $network_interface

	#拨号
	procd_open_instance

	if [ "$dial_tool" = "quectel-CM" ]; then
		procd_set_param command quectel-CM
	elif [[ -z "$dial_tool" ]]; then
		procd_set_param command quectel-CM
	else
		procd_set_param command $dial_tool
	fi

	case $pdp_type in
		"ipv4") procd_append_param command -4 ;;
		"ipv6") procd_append_param command -6 ;;
		"ipv4_ipv6") procd_append_param command -4 -6 ;;
		*) procd_append_param command -4 -6 ;;
	esac

	if [ "$apn" != "" ]; then
		procd_append_param command -s $apn
	fi
	if [ "$user" != "" ]; then
		procd_append_param command $user
	fi
	if [ "$password" != "" ]; then
		procd_append_param command $password
	fi
	if [ "$auth" != "" ]; then
		procd_append_param command $auth
	fi
	if [ "$network" != "" ]; then
		procd_append_param command -i $network
	fi
	procd_set_param respawn
	procd_set_param procd_pid /var/run/modem/modem$modem_no.pid
	procd_close_instance
}

gobinet()
{
	#获取网络接口、AT串口、制造商
	local network_interface=$(uci -q get modem.modem$modem_no.network_interface)
	local at_port=$(uci -q get modem.modem$modem_no.at_port)
	local manufacturer=$(uci -q get modem.modem$modem_no.manufacturer)
	#设置网络接口
	set_interface $modem_no $network_interface

	#拨号
	procd_open_instance
	procd_set_param command sh /usr/share/modem/modem_usb_network.sh $id $at_port $manufacturer "gobinet"
	procd_set_param respawn
	procd_close_instance
}

ecm()
{
	#获取网络接口、AT串口、制造商
	local network_interface=$(uci -q get modem.modem$modem_no.network_interface)
	local at_port=$(uci -q get modem.modem$modem_no.at_port)
	local manufacturer=$(uci -q get modem.modem$modem_no.manufacturer)
	#设置网络接口
	set_interface $modem_no $network_interface

	#拨号
	procd_open_instance
	procd_set_param command sh /usr/share/modem/modem_usb_network.sh $id $at_port $manufacturer "ecm"
	procd_set_param respawn
	procd_close_instance
}

mbim()
{
	qmi
}

rndis()
{
	ecm
	#广和通的rndis和ecm不同，后续再测试
}

ncm()
{
	ecm
}

stop_qmi()
{
	#获取modem的实例信息
	local response=$(ubus call service list '{"name": "modem"}')
	local instance_number=$(echo "$response" | jq -r '.modem.instances | length')
	for i in $(seq 1 $((instance_number))); do
		#获取拨号命令
		local command=$(echo "$response" | jq -r '.modem.instances.instance$i.command')
		if [ "$command" = *"$network"* ]; then
			local pid=$(echo "$response" | jq -r '.modem.instances.$i.pid')
			kill $pid >/dev/null 2>&1
		fi
	done
}

stop_gobinet()
{
	#获取AT串口、制造商
	local at_port=$(uci -q get modem.modem$modem_no.at_port)
	local manufacturer=$(uci -q get modem.modem$modem_no.manufacturer)

	#停止拨号
	local command="sh /usr/share/modem/modem_at.sh $at_port"
	if [ "$manufacturer" = "quectel" ]; then
		$command 'ATI'
	elif [ "$manufacturer" = "fibocom" ]; then
		$command 'AT$QCRMCALL=0,1'
	else
		$command 'ATI'
	fi
}

stop_ecm()
{
	#获取AT串口、制造商
	local at_port=$(uci -q get modem.modem$modem_no.at_port)
	local manufacturer=$(uci -q get modem.modem$modem_no.manufacturer)

	#停止拨号
	local command="sh /usr/share/modem/modem_at.sh $at_port"
	if [ "$manufacturer" = "quectel" ]; then
		$command 'ATI'
	elif [ "$manufacturer" = "fibocom" ]; then
		$command 'AT+GTRNDIS=0,1'
	else
		$command 'ATI'
	fi
}

stop_mbim()
{
	stop_qmi
}

stop_rndis()
{
	stop_ecm
	#广和通的rndis和ecm不同，后续再测试
}

stop_ncm()
{
	stop_ecm
}

#获取模块序号
# $1:移动网络
get_modem_no()
{
	local modem_number=$(uci -q get modem.@global[0].modem_number)
	local modem_network
	for i in $(seq 0 $((modem_number-1))); do
		modem_network=$(uci -q get modem.modem$i.network)
		if [ "$modem_network" = "$1" ]; then
			#模块序号
			modem_no=$i
			break
		fi
	done
}

#获取实例运行状态（未使用）
# $1:配置ID
get_instance_status()
{
	#获取modem的实例信息
	local response=$(ubus call service list '{"name": "modem"}')
	local instance_number=$(echo "$response" | jq -r ".modem.instances | length")
	for i in $(seq 1 $((instance_number))); do
		#获取运行状态和拨号命令
		local running_status=$(echo "$response" | jq -r ".modem.instances.instance$i.running")
		local command=$(echo "$response" | jq -r ".modem.instances.instance$i.command")
		if [ "$running_status" = "true" ] && [[ "$command" = *"$network"* ]]; then
			#查看配置ID是否记录在已运行的文件里
			local run_config="/tmp/modem/run_config"
			local run_config_id=$(grep -n "$network" "$run_config" | cut -d ';' -f 2)
			if [ "$1" = "$run_config_id" ]; then
				status=2
				break
			else
				status=1
				break
			fi
		fi
	done
}

#停止拨号
# $1:配置ID
stop_dial()
{
	local id="$1" #配置ID
	local network=$(uci -q get modem.$1.network) #移动网络

	#把配置ID从临时列表中移除
	local run_config="/tmp/modem/run_config"
	local row_no=$(grep -n "$id" "$run_config" | cut -d ':' -f 1)
	if [ -z "$row_no" ]; then
		return 0
	fi
	#该配置ID在运行，需要删除记录
	sed -i "$row_no"d $run_config

	#获取模块序号
	get_modem_no $network
	#获取模组的拨号模式
	local mode=$(uci -q get modem.modem$modem_no.mode)

	#根据不同的拨号模式停止拨号
	if [ "$mode" = "qmi" ]; then
		stop_qmi
	elif [ "$mode" = "gobinet" ]; then
		stop_gobinet
	elif [ "$mode" = "ecm" ]; then
		stop_ecm
	elif [ "$mode" = "mbim" ]; then
		stop_mbim
	elif [ "$mode" = "rndis" ]; then
		stop_rndis
	elif [ "$mode" = "ncm" ]; then
		stop_ncm
	fi
}

dial()
{
	local enable #启用
	local id #ID

	config_get enable $1 enable
	config_get id $1 id
	[ "$enable" = "0" ] && {
		stop_dial "$id"
		return 0
	}

	local remarks #备注
	local network #移动网络
	local dial_tool #拨号工具
	local pdp_type #网络类型
	local apn
	local user
	local password
	local auth

	config_get remarks $1 remarks
	config_get network $1 network
	config_get dial_tool $1 dial_tool
	config_get pdp_type $1 pdp_type
	config_get apn $1 apn
	config_get user $1 user
	config_get password $1 password
	config_get auth $1 auth

	#获取模块序号
	get_modem_no $network
	#获取模组的拨号模式
	[ -z "$modem_no" ] && return 0
	local mode=$(uci -q get modem.modem$modem_no.mode)
	if [ "$mode" = "unknown" ]; then
		mode="qmi"
	fi

	#查看移动网络是否已经有配置在运行
	local run_path="/tmp/modem"
	mkdir -p $run_path
	local run_config="/tmp/modem/run_config"
	local row_no=$(grep -n "$network" "$run_config" | cut -d ':' -f 1) #1:wwan0;abc->1
	if [ -z "$row_no" ]; then #未记录该移动网络
		#把已运行的配置ID加入到记录中
		echo "$network;$id" >> "$run_path/run_config"
	else
		local run_config_id=$(grep -n "$network" "$run_config" | cut -d ';' -f 2)
		if [ "$id" != "$run_config_id" ]; then #该移动网络已存在，且已有其他配置运行
			uci set modem.$1.enable=0
			uci commit modem
			return 0
		fi
	fi

	#根据不同的拨号模式拨号
	if [ "$mode" = "qmi" ]; then
		qmi
	elif [ "$mode" = "gobinet" ]; then
		gobinet
	elif [ "$mode" = "ecm" ]; then
		ecm
	elif [ "$mode" = "mbim" ]; then
		mbim
	elif [ "$mode" = "rndis" ]; then
		rndis
	elif [ "$mode" = "ncm" ]; then
		ncm
	fi

	# sleep 15
}

service_triggers()
{
	procd_add_reload_trigger "modem"
}

start_service() {
	local enable=$(uci -q get modem.@global[0].enable)
	if [ "$enable" = "0" ]; then
		stop_service
	else
		config_load modem
		config_foreach dial "config"
	fi
}

stop_service()
{
	#删除记录文件
	rm -rf /tmp/modem
	#停止qmi、mbim拨号
	killall quectel-CM >/dev/null 2>&1
	#停止gobinet、ecm、rndis、ncm拨号
	local modem_number=$(uci -q get modem.@global[0].modem_number)
	for i in $(seq 0 $((modem_number-1))); do
		modem_no=$i
		local mode=$(uci -q get modem.modem$modem_no.mode)
		case $mode in
			"gobinet") stop_gobinet ;;
			"ecm") stop_ecm ;;
			"rndis") stop_rndis ;;
			"ncm") stop_ncm ;;
			*) stop_ecm ;;
		esac
	done
}