/*
* Copyright (C) 2011 asksven
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.asksven.android.common.kernelutils;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.StringTokenizer;
import android.util.Log;
//import com.asksven.andoid.common.contrib.Shell;
import com.asksven.andoid.common.contrib.Util;
import com.asksven.android.common.RootShell;
import com.asksven.android.common.privateapiproxies.NetworkUsage;
import com.asksven.android.common.privateapiproxies.StatElement;
import com.asksven.android.common.shellutils.Exec;
import com.asksven.android.common.shellutils.ExecResult;
import com.asksven.android.common.utils.StringUtils;
/**
* Parses the content of /proc/net/xt_qtaguid/stats
* instead of using the API functions NetworkStats stats = new NetworkStatsFactory().readNetworkStatsDetail(uid-here) because http://stackoverflow.com/questions/9080229/why-i-cant-read-proc-net-xt-qtaguid-stats-correctly-by-filereader-in-android-i
* format is:
* idx iface acct_tag_hex uid_tag_int cnt_set rx_bytes rx_packets tx_bytes tx_packets rx_tcp_bytes rx_tcp_packets rx_udp_bytes rx_udp_packets rx_other_bytes rx_other_packets tx_tcp_bytes tx_tcp_packets tx_udp_bytes tx_udp_packets tx_other_bytes tx_other_packets
* example data:
* 2 bnep1 0x0 0 0 21672 217 101512 526 0 0 16940 200 4732 17 0 0 50421 174 51091 352
* 3 bnep1 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 4 bnep0 0x0 0 0 151693 2305 408790 2375 334 7 151359 2298 0 0 1010 5 309743 1720 98037 650
* 5 bnep0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 6 wl0.1 0x0 0 0 10836 131 18274 139 0 0 8716 109 2120 22 0 0 15114 96 3160 43
* 7 wl0.1 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 8 wlan0 0x0 0 0 6449931 34871 624544 8518 335259 2562 5965630 30745 149042 1564 12579 203 467333 7261 144632 1054
* 9 wlan0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 10 wlan0 0x0 1000 0 12096 146 14679 194 11944 144 152 2 0 0 14332 189 347 5 0 0
* 11 wlan0 0x0 1000 1 1885 10 1867 26 1885 10 0 0 0 0 1466 20 401 6 0 0
* 12 wlan0 0x0 1014 0 317376 551 238620 615 0 0 317376 551 0 0 0 0 238620 615 0 0
* 13 wlan0 0x0 1014 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 14 wlan0 0x0 10003 0 697215 713 84843 848 697215 713 0 0 0 0 84371 840 472 8 0 0
* 15 wlan0 0x0 10003 1 1938719 2030 321314 2437 1938719 2030 0 0 0 0 321314 2437 0 0 0 0
* value holder is Netstat
* @author sven
*/
public class Netstats
{
static final String TAG = "Netstats";
private static String FILE_PATH = "/proc/net/xt_qtaguid/stats";
static final String PERMISSION_DENIED = "su rights required to access alarms are not available / were not granted";
private static final String KEY_IDX = "idx";
private static final String KEY_IFACE = "iface";
private static final String KEY_UID = "uid_tag_int";
private static final String KEY_COUNTER_SET = "cnt_set";
private static final String KEY_TAG_HEX = "acct_tag_hex";
private static final String KEY_RX_BYTES = "rx_bytes";
private static final String KEY_RX_PACKETS = "rx_packets";
private static final String KEY_TX_BYTES = "tx_bytes";
private static final String KEY_TX_PACKETS = "tx_packets";
public static ArrayList<StatElement> parseNetstats()
{
List<String> stats = getStats();
return parseNetstats(stats);
}
public static ArrayList<StatElement> parseNetstats(List<String> stats)
{
ArrayList<StatElement> myStats = new ArrayList<StatElement>();
if ((stats != null) && (stats.size() != 0))
{
// String strRes = res.getResultLine();
if (true) //(!strRes.contains("Permission Denial"))
{
ArrayList<String> keys = new ArrayList<String>();
keys.add(KEY_IDX);
keys.add(KEY_IFACE);
keys.add(KEY_TAG_HEX);
keys.add(KEY_UID);
keys.add(KEY_COUNTER_SET);
keys.add(KEY_RX_BYTES);
keys.add(KEY_RX_PACKETS);
keys.add(KEY_TX_BYTES);
keys.add(KEY_TX_PACKETS);
final ArrayList<String> values = new ArrayList<String>();
final HashMap<String, String> parsed = new HashMap<String, String>();
// ArrayList<String> myRes = res.getResult(); // getTestData();
// process the file, starting on line 2
long totalBytes = 0;
for (int i=1; i < stats.size(); i++)
{
String line = stats.get(i);
StringUtils.splitLine(line, values);
StringUtils.parseLine(keys, values, parsed);
try
{
//Netstat entry = new Netstat();
NetworkUsage entry = new NetworkUsage(
StringUtils.getParsedInt(parsed, KEY_UID),
parsed.get(KEY_IFACE),
StringUtils.getParsedLong(parsed, KEY_RX_BYTES),
StringUtils.getParsedLong(parsed, KEY_TX_BYTES));
myStats = addToStats(myStats, entry);
totalBytes += entry.getTotalBytes();
}
catch (Exception e)
{
Log.e(TAG, "An error occured while parsing " + line + ": " + e.getMessage());
}
}
// set the total so that we can calculate the ratio
for (int i = 0; i < myStats.size(); i++)
{
myStats.get(i).setTotal(totalBytes);
}
}
}
return myStats;
}
private static List<String> getStats()
{
// ExecResult res = Exec.execPrint(new String[]{"su", "-c", "cat /proc/net/xt_qtaguid/stats"});
List<String> res = RootShell.getInstance().run("cat /proc/net/xt_qtaguid/stats");
//Util.run("su", "cat /proc/net/xt_qtaguid/stats");
return res;
}
/**
* Stats may be duplicate for one uid+iface so we sum them up
* @param stats
* @param entry
* @return
*/
static ArrayList<StatElement> addToStats(ArrayList<StatElement> stats, NetworkUsage entry)
{
boolean merged = false;
for (int i=0; i < stats.size(); i++)
{
NetworkUsage current = (NetworkUsage) stats.get(i);
if ( (current.getuid() == entry.getuid()) && (current.getInterface().equals(entry.getInterface())) )
{
current.addBytesReceived(entry.getBytesReceived());
current.addBytesSent(entry.getBytesSent());
merged = true;
break;
}
}
// if not summed up add normally
if (!merged)
{
stats.add(entry);
}
return stats;
}
public static boolean fileExists()
{
boolean exists = false;
FileReader fr = null;
try
{
fr = new FileReader(FILE_PATH);
exists = true;
}
catch (Exception e)
{
exists = false;
}
finally
{
if (exists)
{
try
{
fr.close();
}
catch (IOException e)
{
// do nothing
}
}
}
return exists;
}
}