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Add CTS support for eBPF

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Addition of eBPF requires tweaks regarding packet counting of
UDP-encapsulated-ESP packet bytes. This patch conditions the expected
number of bytes received based on eBPF being enabled

Bug: 74113670
Test: Ran CTS tests, passing on 3.18, 4.4, 4.9 kernels
Change-Id: If02a4bb6ebfdf949fdb58b5816aa9d252d9eef52
This commit is contained in:
Benedict Wong
2018-04-16 17:05:31 -07:00
parent 6c946d6275
commit fe9b0a791e
1 changed files with 17 additions and 10 deletions
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27
tests/cts/net/src/android/net/cts/IpSecManagerTest.java
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@@ -353,7 +353,8 @@ public class IpSecManagerTest extends IpSecBaseTest {
private static void assertUidStatsDelta(
int expectedTxByteDelta,
int expectedTxPacketDelta,
int expectedRxByteDelta,
int minRxByteDelta,
int maxRxByteDelta,
int expectedRxPacketDelta) {
long newUidTxBytes = TrafficStats.getUidTxBytes(Os.getuid());
long newUidRxBytes = TrafficStats.getUidRxBytes(Os.getuid());
@@ -361,7 +362,9 @@ public class IpSecManagerTest extends IpSecBaseTest {
long newUidRxPackets = TrafficStats.getUidRxPackets(Os.getuid());
assertEquals(expectedTxByteDelta, newUidTxBytes - uidTxBytes);
assertEquals(expectedRxByteDelta, newUidRxBytes - uidRxBytes);
assertTrue(
newUidRxBytes - uidRxBytes >= minRxByteDelta
&& newUidRxBytes - uidRxBytes <= maxRxByteDelta);
assertEquals(expectedTxPacketDelta, newUidTxPackets - uidTxPackets);
assertEquals(expectedRxPacketDelta, newUidRxPackets - uidRxPackets);
}
@@ -561,13 +564,13 @@ public class IpSecManagerTest extends IpSecBaseTest {
StatsChecker.waitForNumPackets(expectedPackets);
if (udpEncapLen != 0) {
StatsChecker.assertUidStatsDelta(
expectedOuterBytes, expectedPackets, expectedOuterBytes, expectedPackets);
} else {
StatsChecker.assertUidStatsDelta(
expectedOuterBytes, expectedPackets, expectedInnerBytes, expectedPackets);
}
// eBPF only counts inner packets, whereas xt_qtaguid counts outer packets. Allow both
StatsChecker.assertUidStatsDelta(
expectedOuterBytes,
expectedPackets,
expectedInnerBytes,
expectedOuterBytes,
expectedPackets);
// Unreliable at low numbers due to potential interference from other processes.
if (sendCount >= 1000) {
@@ -607,7 +610,11 @@ public class IpSecManagerTest extends IpSecBaseTest {
StatsChecker.waitForNumPackets(expectedNumPkts);
StatsChecker.assertUidStatsDelta(
expectedPacketSize, expectedNumPkts, expectedPacketSize, expectedNumPkts);
expectedPacketSize,
expectedNumPkts,
expectedPacketSize,
expectedPacketSize,
expectedNumPkts);
StatsChecker.assertIfaceStatsDelta(
expectedPacketSize, expectedNumPkts, expectedPacketSize, expectedNumPkts);
}