public String doEthernetShare() {
String result = "Failure";
DataOutputStream dataOutputStream = null;
BufferedReader errorStream = null;
String networkType = getNetworkType();
try {
MyLog("doEthernetShare.networkType=" + networkType);
Process process = Runtime.getRuntime().exec("su");
dataOutputStream = new DataOutputStream(process.getOutputStream());
String commandStr = "mount -o rw,remount / " + " \n" +
"mount -o rw,remount /system " + " \n" +
"mkdir -p /var/lib/misc/" + " \n" +
"touch /var/lib/misc/udhcpd.leases" + " \n" +
"echo 0 > /proc/sys/net/ipv4/ip_forward" + " \n" +
"busybox ifconfig eth0 up" + " \n" +
"busybox ifconfig eth0 192.168.1.1 netmask 255.255.255.0" + " \n" +
"/system/bin/iptables -t nat -A natctrl_nat_POSTROUTING -o " + networkType + " -j MASQUERADE" + " \n" +
"/system/bin/iptables -A natctrl_FORWARD -i " + networkType + " -o eth0 -m state --state ESTABLISHED,RELATED -g natctrl_tether_counters" + " \n" +
"/system/bin/iptables -A natctrl_FORWARD -i eth0 -o " + networkType + " -m state --state INVALID -j DROP" + " \n" +
"/system/bin/iptables -A natctrl_FORWARD -i eth0 -o " + networkType + " -g natctrl_tether_counters" + " \n" +
"/system/bin/iptables -A natctrl_tether_counters -i eth0 -o " + networkType + " -j RETURN" + " \n" +
"/system/bin/iptables -A natctrl_tether_counters -i " + networkType + " -o eth0 -j RETURN" + " \n" +
"/system/bin/iptables -D natctrl_FORWARD -j DROP" + " \n" +
"/system/bin/iptables -A natctrl_FORWARD -j DROP" + " \n" +
"ip route add 192.168.1.0/24 dev eth0 table local_network proto static scope link" + " \n" +
"echo 1 > /proc/sys/net/ipv4/ip_forward" + " \n" +
"busybox1.11 udhcpd -fS /etc/udhcpd.conf" + " \n"
;
dataOutputStream.write(commandStr.getBytes(Charset.forName("utf-8")));
dataOutputStream.flush();
dataOutputStream.writeBytes("exit\n");
dataOutputStream.flush();
process.waitFor();
errorStream = new BufferedReader(new InputStreamReader(process.getErrorStream()));
String msg = "";
String line;
// 读取命令的执行结果
while ((line = errorStream.readLine()) != null) {
msg += line;
}
MyLog("msg" +msg);
result = msg;
} catch (Exception e) {
Log.e(TAG_AZ, e.getMessage(), e);
} finally {
try {
if (dataOutputStream != null) {
dataOutputStream.close();
}
if (errorStream != null) {
errorStream.close();
}
} catch (IOException e) {
Log.e(TAG_AZ, e.getMessage(), e);
}
}
return result;
}