fix bugs (#892)

1. traffic stats not work.
2. magisk zip malformat

easytier-contrib/easytier-magisk/easytier_core.sh

@@ -0,0 +1,48 @@
+#!/system/bin/sh
+
+MODDIR=${0%/*}
+CONFIG_FILE="${MODDIR}/config/config.toml"
+LOG_FILE="${MODDIR}/log.log"
+MODULE_PROP="${MODDIR}/module.prop"
+EASYTIER="${MODDIR}/easytier-core"
+
+# 更新module.prop文件中的description
+update_module_description() {
+    local status_message=$1
+    sed -i "/^description=/c\description=[状态]${status_message}" ${MODULE_PROP}
+}
+
+if [ ! -e /dev/net/tun ]; then
+    if [ ! -d /dev/net ]; then
+        mkdir -p /dev/net
+    fi
+
+    ln -s /dev/tun /dev/net/tun
+fi
+
+while true; do
+    if ls $MODDIR | grep -q "disable"; then
+        update_module_description "关闭中"
+        if pgrep -f 'easytier-core' >/dev/null; then
+            echo "开关控制$(date "+%Y-%m-%d %H:%M:%S") 进程已存在，正在关闭 ..."
+            pkill easytier-core # 关闭进程
+        fi
+    else
+        if ! pgrep -f 'easytier-core' >/dev/null; then
+            if [ ! -f "$CONFIG_FILE" ]; then
+                update_module_description "config.toml不存在"
+                sleep 3s
+                continue
+            fi
+
+            TZ=Asia/Shanghai ${EASYTIER} -c ${CONFIG_FILE} > ${LOG_FILE} &
+            sleep 5s # 等待easytier-core启动完成
+            update_module_description "已开启(不一定运行成功)"
+            ip rule add from all lookup main
+        else
+            echo "开关控制$(date "+%Y-%m-%d %H:%M:%S") 进程已存在"
+        fi
+    fi
+    
+    sleep 3s # 暂停3秒后再次执行循环
+done