android移植Linux Wireless Extension Tools以及使用说明

1. Wireless tools for Linux是一个Linux命令行工具包，用来设置支持Linux Wireless Extension的无线设备。Wireless tools for Linux 和 Linux Wireless Extension 由 Jean Tourrilhes在维护，由Hewlett-Packard（HP惠普）赞助。大多数基于Linux内核的操作系统都包含Wireless tools。在许多GNU/Linux 发行版中，都缺省安装这个工具包，即使是没有自动安装，也能很容易地找到其二进制代码安装包。
   
   Wireless Extension (WE)是一组通用的API，能在用户空间对通用Wireless LANs进行配置和统计。它的好处在于仅通过一组单一的工具就能对各种各样的Wireless LANs进行管理，不过它们是什么类型，只要其驱动支持Wireless Extension就行；另一个好处就是不用重启驱动或Linux就能改变这些参数。Wireless Tools (WT)就是用来操作Wireless Extensions的工具集，它们使用字符界面，虽然粗糙，但支持所有Wireless Extension。
   
   虽然还有很多其他管理Wireless Extensions的工具，但Wireless Tools是参考实现，它包括以下工具：
   iwconfig：设置基本无线参数iwlist：扫描、列出频率，比特率，密钥等
   iwspy：获取每个节点链接的质量(只能查阅与之相连的节点)
   iwpriv：操作Wireless Extensions 特定驱动
   ifrename： 基于各种静态标准命名接口
    
2. Wireless tools在android环境下的编译
      下载原始工程:  https://github.com/kriswebdev/android_wireless_tools
       用以下内容替换Android.mk（以下内容只编译了大多数的tool binary，有几个没有加入编译， 需要的添加对应的部分就可以了~），然后mma编译即可， 编译出来的binary在system/xbin目录

   LOCAL_PATH:= $(call my-dir)
   
   ################## build iwconfig #################
   include $(CLEAR_VARS)
   LOCAL_SRC_FILES := iwconfig.c iwlib.c
   LOCAL_MODULE:= iwconfig
   LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC -Wno-implicit-function-declaration -Wno-self-assign
   LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
   include $(BUILD_EXECUTABLE)
   
   ################## build iwlist ###################
   include $(CLEAR_VARS)
   LOCAL_SRC_FILES := iwlist.c iwlib.c
   LOCAL_MODULE_TAGS := optional
   LOCAL_MODULE:= iwlist
   LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC -Wno-implicit-function-declaration -Wno-self-assign
   LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
   include $(BUILD_EXECUTABLE)
   ################## build iwpriv ###################
   include $(CLEAR_VARS)
   LOCAL_SRC_FILES := iwpriv.c iwlib.c
   LOCAL_MODULE_TAGS := optional
   LOCAL_MODULE:= iwpriv
   LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC -Wno-implicit-function-declaration -Wno-self-assign
   LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
   include $(BUILD_EXECUTABLE)
   ################## build iwspy ###################
   include $(CLEAR_VARS)
   LOCAL_SRC_FILES := iwspy.c iwlib.c
   LOCAL_MODULE_TAGS := optional
   LOCAL_MODULE:= iwspy
   LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC -Wno-implicit-function-declaration -Wno-self-assign
   LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
   include $(BUILD_EXECUTABLE)
   ################## build iwgetid ###################
   include $(CLEAR_VARS)
   LOCAL_SRC_FILES := iwgetid.c iwlib.c
   LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC
   LOCAL_MODULE_TAGS := optional
   LOCAL_MODULE:= iwgetid
   LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC -Wno-implicit-function-declaration -Wno-self-assign
   LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
   include $(BUILD_EXECUTABLE)
   ################## build iwevent ###################
   include $(CLEAR_VARS)
   LOCAL_SRC_FILES := iwevent.c iwlib.c
   LOCAL_MODULE_TAGS := optional
   LOCAL_MODULE:= iwevent
   LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC -Wno-implicit-function-declaration -Wno-self-assign
   LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
   include $(BUILD_EXECUTABLE)
   ################## build macaddr ###################
   include $(CLEAR_VARS)
   LOCAL_SRC_FILES := macaddr.c iwlib.c
   LOCAL_MODULE_TAGS := optional
   LOCAL_MODULE:= macaddr
   LOCAL_CFLAGS += -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wpointer-arith -Wcast-qual -Winline -MMD -fPIC -Wno-implicit-function-declaration -Wno-self-assign
   LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) # install to system/xbin
   include $(BUILD_EXECUTABLE)
   

    

3. 工具使用(具体细节可以通过help查找用法)