android wifi 分析

1.wifi Adapter
hardware/libhardware_legacy/wifi/wifi_ralink3070.c

2.
wifi的JNI放在
./frameworks/base/core/jni/android_net_wifi_Wifi.cpp:103:
中定义，java的接口在
frameworks/base/wifi/java/android/net/wifi/WifiNative.loadDriver


3.真正的龙骨
./frameworks/base/services/java/com/android/server/WifiService.java
完成了IWifiManager.aidl的接口定义

4./base/services/java/com/android/server/ConnectivityService.java

5.c&c++中的属性设置和读取用property_set/property_get，
  java的属性设置和读取用SystemProperties.set/SystemProperties.get

6.frameworks/base/services/java/com/android/server/ConnectivityService.java
设置了net.dns1

7.Eth setting
res在packages/apps/Settings/res/values/strings.xml
定义了很多字符串


8.
netcfg 调用了do_dhcp(),
./system/core/libnetutils/dhcpclient.c:549:int do_dhcp(char *iname)

9.dhcpcd
设置的属性是在external/dhcpcd/dhcpcd-hooks/95-configured

10.此文件定义了很多网络操作的native 本地接口,如runDhcp
./frameworks/base/core/java/android/net/NetworkUtils.java
响应的JNI放在
./frameworks/base/core/jni/android_net_NetUtils.cpp

11.dhcp通过NetworkUtils.runDhcp
        ---->android_net_utils_runDhcp()  [./frameworks/base/core/jni/android_net_NetUtils.cpp]
    ------->dhcp_do_request()  [system/core/libnetutils/dhcp_utils.c]