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Merge "Ignore ipv6 tx traffic on clat uid."

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am: bd73798585

Change-Id: I181c3c812caa9bcd359fbddf74d14adeb7e83419
This commit is contained in:
Junyu Lai
2019-01-04 08:13:29 -08:00
committed by android-build-merger
parent ac974d0b0d bd73798585
commit cb53e78f56
8 changed files with 52 additions and 26 deletions
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26
core/java/android/net/NetworkStats.java
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@@ -16,6 +16,8 @@
package android.net;
import static android.os.Process.CLAT_UID;
import android.annotation.UnsupportedAppUsage;
import android.os.Parcel;
import android.os.Parcelable;
@@ -828,13 +830,15 @@ public class NetworkStats implements Parcelable {
*
* <p>For 464xlat traffic, xt_qtaguid sees every IPv4 packet twice, once as a native IPv4
* packet on the stacked interface, and once as translated to an IPv6 packet on the
* base interface. For correct stats accounting on the base interface, every 464xlat
* packet needs to be subtracted from the root UID on the base interface both for tx
* and rx traffic (http://b/12249687, http:/b/33681750).
* base interface. For correct stats accounting on the base interface, if using xt_qtaguid,
* every rx 464xlat packet needs to be subtracted from the root UID on the base interface
* (http://b/12249687, http:/b/33681750), and every tx 464xlat packet which was counted onto
* clat uid should be ignored.
*
* As for eBPF, the per uid stats is collected by different hook, the rx packets on base
* interface will not be counted. Thus, the adjustment on root uid is only needed in tx
* direction.
* interface will not be counted. Thus, the adjustment on root uid is not needed. However, the
* tx traffic counted in the same way xt_qtaguid does, so the traffic on clat uid still
* needs to be ignored.
*
* <p>This method will behave fine if {@code stackedIfaces} is an non-synchronized but add-only
* {@code ConcurrentHashMap}
@@ -862,17 +866,14 @@ public class NetworkStats implements Parcelable {
if (baseIface == null) {
continue;
}
// Subtract any 464lat traffic seen for the root UID on the current base interface.
// However, for eBPF, the per uid stats is collected by different hook, the rx packets
// on base interface will not be counted. Thus, the adjustment on root uid is only
// needed in tx direction.
// Subtract xt_qtaguid 464lat rx traffic seen for the root UID on the current base
// interface. As for eBPF, the per uid stats is collected by different hook, the rx
// packets on base interface will not be counted.
adjust.iface = baseIface;
if (!useBpfStats) {
adjust.rxBytes = -(entry.rxBytes + entry.rxPackets * IPV4V6_HEADER_DELTA);
adjust.rxPackets = -entry.rxPackets;
}
adjust.txBytes = -(entry.txBytes + entry.txPackets * IPV4V6_HEADER_DELTA);
adjust.txPackets = -entry.txPackets;
adjustments.combineValues(adjust);
// For 464xlat traffic, per uid stats only counts the bytes of the native IPv4 packet
@@ -884,6 +885,9 @@ public class NetworkStats implements Parcelable {
stackedTraffic.setValues(i, entry);
}
// Traffic on clat uid is v6 tx traffic that is already counted with app uid on the stacked
// v4 interface, so it needs to be removed to avoid double-counting.
baseTraffic.removeUids(new int[] {CLAT_UID});
baseTraffic.combineAllValues(adjustments);
}

6
core/java/android/os/Process.java
View File

@@ -108,6 +108,12 @@ public class Process {
*/
public static final int NFC_UID = 1027;
/**
* Defines the UID/GID for the clatd process.
* @hide
* */
public static final int CLAT_UID = 1029;
/**
* Defines the UID/GID for the Bluetooth service process.
* @hide

12
tests/net/java/android/net/NetworkStatsTest.java
View File

@@ -832,25 +832,23 @@ public class NetworkStatsTest {
0 /* operations */);
// Traffic measured for the root uid on the base interface if eBPF is in use.
// Incorrectly includes appEntry's bytes and packets, plus IPv4-IPv6 translation
// overhead (20 bytes per packet), only for TX traffic.
final NetworkStats.Entry ebpfRootUidEntry = new NetworkStats.Entry(
baseIface, rootUid, SET_DEFAULT, TAG_NONE,
163577 /* rxBytes */,
187 /* rxPackets */,
1169942 /* txBytes */,
13902 /* txPackets */,
17607 /* txBytes */,
97 /* txPackets */,
0 /* operations */);
// Traffic measured for the root uid on the base interface if xt_qtaguid is in use.
// Incorrectly includes appEntry's bytes and packets, plus IPv4-IPv6 translation
// overhead (20 bytes per packet), in both directions.
// overhead (20 bytes per packet), in rx direction.
final NetworkStats.Entry xtRootUidEntry = new NetworkStats.Entry(
baseIface, rootUid, SET_DEFAULT, TAG_NONE,
31113087 /* rxBytes */,
22588 /* rxPackets */,
1169942 /* txBytes */,
13902 /* txPackets */,
17607 /* txBytes */,
97 /* txPackets */,
0 /* operations */);
final NetworkStats.Entry otherEntry = new NetworkStats.Entry(

17
tests/net/java/com/android/internal/net/NetworkStatsFactoryTest.java
View File

@@ -159,7 +159,7 @@ public class NetworkStatsFactoryTest {
assertStatsEntry(stats, "v4-wlan0", 1000, SET_DEFAULT, 0x0, 30812L, 2310L);
assertStatsEntry(stats, "v4-wlan0", 10102, SET_DEFAULT, 0x0, 10022L, 3330L);
assertStatsEntry(stats, "v4-wlan0", 10060, SET_DEFAULT, 0x0, 9532772L, 254112L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, 15229L, 5766L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, 15229L, 0L);
assertStatsEntry(stats, "wlan0", 1000, SET_DEFAULT, 0x0, 6126L, 2013L);
assertStatsEntry(stats, "wlan0", 10013, SET_DEFAULT, 0x0, 0L, 144L);
assertStatsEntry(stats, "wlan0", 10018, SET_DEFAULT, 0x0, 5980263L, 167667L);
@@ -170,6 +170,8 @@ public class NetworkStatsFactoryTest {
assertStatsEntry(stats, "dummy0", 0, SET_DEFAULT, 0x0, 0L, 168L);
assertStatsEntry(stats, "lo", 0, SET_DEFAULT, 0x0, 1288L, 1288L);
assertNoStatsEntry(stats, "wlan0", 1029, SET_DEFAULT, 0x0);
NetworkStatsFactory.clearStackedIfaces();
}
@@ -191,12 +193,12 @@ public class NetworkStatsFactoryTest {
// Stats snapshot before the download
stats = parseDetailedStats(R.raw.xt_qtaguid_with_clat_100mb_download_before);
assertStatsEntry(stats, "v4-wlan0", 10106, SET_FOREGROUND, 0x0, appRxBytesBefore, 5199872L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, rootRxBytesBefore, 647888L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, rootRxBytesBefore, 0L);
// Stats snapshot after the download
stats = parseDetailedStats(R.raw.xt_qtaguid_with_clat_100mb_download_after);
assertStatsEntry(stats, "v4-wlan0", 10106, SET_FOREGROUND, 0x0, appRxBytesAfter, 7867488L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, rootRxBytesAfter, 647587L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, rootRxBytesAfter, 0L);
NetworkStatsFactory.clearStackedIfaces();
}
@@ -252,6 +254,15 @@ public class NetworkStatsFactoryTest {
assertEquals("unexpected txBytes", txBytes, entry.txBytes);
}
private static void assertNoStatsEntry(NetworkStats stats, String iface, int uid, int set,
int tag) {
final int i = stats.findIndex(iface, uid, set, tag, METERED_NO, ROAMING_NO,
DEFAULT_NETWORK_NO);
if (i >= 0) {
fail("unexpected NetworkStats entry at " + i);
}
}
private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
int tag, long rxBytes, long rxPackets, long txBytes, long txPackets) {
final int i = stats.findIndex(iface, uid, set, tag, METERED_NO, ROAMING_NO,

4
tests/net/res/raw/xt_qtaguid_with_clat
View File

@@ -7,7 +7,7 @@ idx iface acct_tag_hex uid_tag_int cnt_set rx_bytes rx_packets tx_bytes tx_packe
7 v4-wlan0 0x0 10060 1 1448660 1041 31192 753 1448660 1041 0 0 0 0 31192 753 0 0 0 0
8 v4-wlan0 0x0 10102 0 9702 16 2870 23 9702 16 0 0 0 0 2870 23 0 0 0 0
9 v4-wlan0 0x0 10102 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
10 wlan0 0x0 0 0 11058671 7892 312046 5113 11043898 7811 13117 61 1656 20 306544 5046 3230 38 2272 29
10 wlan0 0x0 0 0 11058671 7892 0 0 11043898 7811 13117 61 1656 20 0 0 0 0 0 0
11 wlan0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
12 wlan0 0x0 1000 0 6126 13 2013 16 5934 11 192 2 0 0 1821 14 192 2 0 0
13 wlan0 0x0 1000 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
@@ -41,3 +41,5 @@ idx iface acct_tag_hex uid_tag_int cnt_set rx_bytes rx_packets tx_bytes tx_packe
41 dummy0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
42 lo 0x0 0 0 1288 16 1288 16 0 0 532 8 756 8 0 0 532 8 756 8
43 lo 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
44 wlan0 0x0 1029 0 0 0 312046 5113 0 0 0 0 0 0 306544 5046 3230 38 2272 29
45 wlan0 0x0 1029 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

4
tests/net/res/raw/xt_qtaguid_with_clat_100mb_download_after
View File

@@ -9,7 +9,7 @@ idx iface acct_tag_hex uid_tag_int cnt_set rx_bytes rx_packets tx_bytes tx_packe
9 v4-wlan0 0x0 10057 1 728 7 392 7 0 0 728 7 0 0 0 0 392 7 0 0
10 v4-wlan0 0x0 10106 0 2232 18 2232 18 0 0 2232 18 0 0 0 0 2232 18 0 0
11 v4-wlan0 0x0 10106 1 432952718 314238 5442288 121260 432950238 314218 2480 20 0 0 5433900 121029 8388 231 0 0
12 wlan0 0x0 0 0 440746376 329772 8524052 130894 439660007 315369 232001 1276 854368 13127 7871216 121284 108568 1325 544268 8285
12 wlan0 0x0 0 0 440746376 329772 0 0 439660007 315369 232001 1276 854368 13127 0 0 0 0 0 0
13 wlan0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
14 wlan0 0x0 1000 0 77113 272 56151 575 77113 272 0 0 0 0 19191 190 36960 385 0 0
15 wlan0 0x0 1000 1 20227 80 8356 72 18539 74 1688 6 0 0 7562 66 794 6 0 0
@@ -185,3 +185,5 @@ idx iface acct_tag_hex uid_tag_int cnt_set rx_bytes rx_packets tx_bytes tx_packe
185 wlan0 0xffffff0900000000 1000 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
186 dummy0 0x0 0 0 0 0 168 3 0 0 0 0 0 0 0 0 0 0 168 3
187 dummy0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
188 wlan0 0x0 1029 0 0 0 8524052 130894 0 0 0 0 0 0 7871216 121284 108568 1325 544268 8285
189 wlan0 0x0 1029 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

4
tests/net/res/raw/xt_qtaguid_with_clat_100mb_download_before
View File

@@ -9,7 +9,7 @@ idx iface acct_tag_hex uid_tag_int cnt_set rx_bytes rx_packets tx_bytes tx_packe
9 v4-wlan0 0x0 10057 1 728 7 392 7 0 0 728 7 0 0 0 0 392 7 0 0
10 v4-wlan0 0x0 10106 0 1488 12 1488 12 0 0 1488 12 0 0 0 0 1488 12 0 0
11 v4-wlan0 0x0 10106 1 323981189 235142 3509032 84542 323979453 235128 1736 14 0 0 3502676 84363 6356 179 0 0
12 wlan0 0x0 0 0 330187296 250652 5855801 94173 329106990 236273 226202 1255 854104 13124 5208040 84634 103637 1256 544124 8283
12 wlan0 0x0 0 0 330187296 250652 0 0 329106990 236273 226202 1255 854104 13124 0 0 0 0 0 0
13 wlan0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
14 wlan0 0x0 1000 0 77113 272 56151 575 77113 272 0 0 0 0 19191 190 36960 385 0 0
15 wlan0 0x0 1000 1 20227 80 8356 72 18539 74 1688 6 0 0 7562 66 794 6 0 0
@@ -183,3 +183,5 @@ idx iface acct_tag_hex uid_tag_int cnt_set rx_bytes rx_packets tx_bytes tx_packe
183 wlan0 0xffffff0900000000 1000 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
184 dummy0 0x0 0 0 0 0 168 3 0 0 0 0 0 0 0 0 0 0 168 3
185 dummy0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
186 wlan0 0x0 1029 0 0 0 5855801 94173 0 0 0 0 0 0 5208040 84634 103637 1256 544124 8283
187 wlan0 0x0 1029 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

5
tests/net/res/raw/xt_qtaguid_with_clat_simple
View File

@@ -1,5 +1,6 @@
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
2 v4-wlan0 0x0 10060 0 42600 213 4100 41 42600 213 4100 41 0 0 0 0 0 0 0 0
2 v4-wlan0 0x0 10060 0 42600 213 4100 41 42600 213 0 0 0 0 4100 41 0 0 0 0
3 v4-wlan0 0x0 10060 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4 wlan0 0x0 0 0 46860 213 4920 41 46860 213 4920 41 0 0 0 0 0 0 0 0
4 wlan0 0x0 0 0 46860 213 0 0 46860 213 0 0 0 0 0 0 0 0 0 0
5 wlan0 0x0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
6 wlan0 0x0 1029 0 0 0 4920 41 0 0 0 0 0 0 4920 41 0 0 0 0