Merge "[SP29] Send interface warning bytes to NetworkStatsProvider" am: a819b9fcf5 am: efe96175f6
Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1470723
Change-Id: I6d799819362fd7d89b6be691d15c49314c867734
diff --git a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
index e9d5fe6..c127858 100644
--- a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
+++ b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
@@ -423,8 +423,8 @@
private static final int MSG_LIMIT_REACHED = 5;
private static final int MSG_RESTRICT_BACKGROUND_CHANGED = 6;
private static final int MSG_ADVISE_PERSIST_THRESHOLD = 7;
- private static final int MSG_UPDATE_INTERFACE_QUOTA = 10;
- private static final int MSG_REMOVE_INTERFACE_QUOTA = 11;
+ private static final int MSG_UPDATE_INTERFACE_QUOTAS = 10;
+ private static final int MSG_REMOVE_INTERFACE_QUOTAS = 11;
private static final int MSG_POLICIES_CHANGED = 13;
private static final int MSG_RESET_FIREWALL_RULES_BY_UID = 15;
private static final int MSG_SUBSCRIPTION_OVERRIDE = 16;
@@ -2036,33 +2036,44 @@
final boolean hasWarning = policy.warningBytes != LIMIT_DISABLED;
final boolean hasLimit = policy.limitBytes != LIMIT_DISABLED;
long limitBytes = Long.MAX_VALUE;
- if (hasLimit && policy.hasCycle()) {
+ long warningBytes = Long.MAX_VALUE;
+ if ((hasLimit || hasWarning) && policy.hasCycle()) {
final Pair<ZonedDateTime, ZonedDateTime> cycle = NetworkPolicyManager
.cycleIterator(policy).next();
final long start = cycle.first.toInstant().toEpochMilli();
final long end = cycle.second.toInstant().toEpochMilli();
final long totalBytes = getTotalBytes(policy.template, start, end);
- if (policy.lastLimitSnooze < start) {
+ // If the limit notification is not snoozed, the limit quota needs to be calculated.
+ if (hasLimit && policy.lastLimitSnooze < start) {
// remaining "quota" bytes are based on total usage in
// current cycle. kernel doesn't like 0-byte rules, so we
// set 1-byte quota and disable the radio later.
limitBytes = Math.max(1, policy.limitBytes - totalBytes);
}
+
+ // If the warning notification was snoozed by user, or the service already knows
+ // it is over warning bytes, doesn't need to calculate warning bytes.
+ if (hasWarning && policy.lastWarningSnooze < start
+ && !policy.isOverWarning(totalBytes)) {
+ warningBytes = Math.max(1, policy.warningBytes - totalBytes);
+ }
}
- if (hasLimit || policy.metered) {
+ if (hasWarning || hasLimit || policy.metered) {
if (matchingIfaces.size() > 1) {
// TODO: switch to shared quota once NMS supports
Slog.w(TAG, "shared quota unsupported; generating rule for each iface");
}
- // Set the interface limit. For interfaces which has no cycle, or metered with
- // no policy limit, or snoozed limit notification; we still need to put iptables
- // rule hooks to restrict apps for data saver, so push really high quota.
+ // Set the interface warning and limit. For interfaces which has no cycle,
+ // or metered with no policy quotas, or snoozed notification; we still need to put
+ // iptables rule hooks to restrict apps for data saver, so push really high quota.
+ // TODO: Push NetworkStatsProvider.QUOTA_UNLIMITED instead of Long.MAX_VALUE to
+ // providers.
for (int j = matchingIfaces.size() - 1; j >= 0; j--) {
final String iface = matchingIfaces.valueAt(j);
- setInterfaceQuotaAsync(iface, limitBytes);
+ setInterfaceQuotasAsync(iface, warningBytes, limitBytes);
newMeteredIfaces.add(iface);
}
}
@@ -2085,7 +2096,7 @@
for (int j = matchingIfaces.size() - 1; j >= 0; j--) {
final String iface = matchingIfaces.valueAt(j);
if (!newMeteredIfaces.contains(iface)) {
- setInterfaceQuotaAsync(iface, Long.MAX_VALUE);
+ setInterfaceQuotasAsync(iface, Long.MAX_VALUE, Long.MAX_VALUE);
newMeteredIfaces.add(iface);
}
}
@@ -2097,7 +2108,7 @@
for (int i = mMeteredIfaces.size() - 1; i >= 0; i--) {
final String iface = mMeteredIfaces.valueAt(i);
if (!newMeteredIfaces.contains(iface)) {
- removeInterfaceQuotaAsync(iface);
+ removeInterfaceQuotasAsync(iface);
}
}
mMeteredIfaces = newMeteredIfaces;
@@ -5038,19 +5049,20 @@
mNetworkStats.advisePersistThreshold(persistThreshold);
return true;
}
- case MSG_UPDATE_INTERFACE_QUOTA: {
- final String iface = (String) msg.obj;
- // int params need to be stitched back into a long
- final long quota = ((long) msg.arg1 << 32) | (msg.arg2 & 0xFFFFFFFFL);
- removeInterfaceQuota(iface);
- setInterfaceQuota(iface, quota);
- mNetworkStats.setStatsProviderLimitAsync(iface, quota);
+ case MSG_UPDATE_INTERFACE_QUOTAS: {
+ final IfaceQuotas val = (IfaceQuotas) msg.obj;
+ // TODO: Consider set a new limit before removing the original one.
+ removeInterfaceLimit(val.iface);
+ setInterfaceLimit(val.iface, val.limit);
+ mNetworkStats.setStatsProviderWarningAndLimitAsync(val.iface, val.warning,
+ val.limit);
return true;
}
- case MSG_REMOVE_INTERFACE_QUOTA: {
+ case MSG_REMOVE_INTERFACE_QUOTAS: {
final String iface = (String) msg.obj;
- removeInterfaceQuota(iface);
- mNetworkStats.setStatsProviderLimitAsync(iface, QUOTA_UNLIMITED);
+ removeInterfaceLimit(iface);
+ mNetworkStats.setStatsProviderWarningAndLimitAsync(iface, QUOTA_UNLIMITED,
+ QUOTA_UNLIMITED);
return true;
}
case MSG_RESET_FIREWALL_RULES_BY_UID: {
@@ -5198,15 +5210,32 @@
}
}
- private void setInterfaceQuotaAsync(String iface, long quotaBytes) {
- // long quotaBytes split up into two ints to fit in message
- mHandler.obtainMessage(MSG_UPDATE_INTERFACE_QUOTA, (int) (quotaBytes >> 32),
- (int) (quotaBytes & 0xFFFFFFFF), iface).sendToTarget();
+ private static final class IfaceQuotas {
+ @NonNull public final String iface;
+ // Warning and limit bytes of interface qutoas, could be QUOTA_UNLIMITED or Long.MAX_VALUE
+ // if not set. 0 is not acceptable since kernel doesn't like 0-byte rules.
+ public final long warning;
+ public final long limit;
+
+ private IfaceQuotas(@NonNull String iface, long warning, long limit) {
+ this.iface = iface;
+ this.warning = warning;
+ this.limit = limit;
+ }
}
- private void setInterfaceQuota(String iface, long quotaBytes) {
+ private void setInterfaceQuotasAsync(@NonNull String iface,
+ long warningBytes, long limitBytes) {
+ mHandler.obtainMessage(MSG_UPDATE_INTERFACE_QUOTAS,
+ new IfaceQuotas(iface, warningBytes, limitBytes)).sendToTarget();
+ }
+
+ private void setInterfaceLimit(String iface, long limitBytes) {
try {
- mNetworkManager.setInterfaceQuota(iface, quotaBytes);
+ // For legacy design the data warning is covered by global alert, where the
+ // kernel will notify upper layer for a small amount of change of traffic
+ // statistics. Thus, passing warning is not needed.
+ mNetworkManager.setInterfaceQuota(iface, limitBytes);
} catch (IllegalStateException e) {
Log.wtf(TAG, "problem setting interface quota", e);
} catch (RemoteException e) {
@@ -5214,11 +5243,11 @@
}
}
- private void removeInterfaceQuotaAsync(String iface) {
- mHandler.obtainMessage(MSG_REMOVE_INTERFACE_QUOTA, iface).sendToTarget();
+ private void removeInterfaceQuotasAsync(String iface) {
+ mHandler.obtainMessage(MSG_REMOVE_INTERFACE_QUOTAS, iface).sendToTarget();
}
- private void removeInterfaceQuota(String iface) {
+ private void removeInterfaceLimit(String iface) {
try {
mNetworkManager.removeInterfaceQuota(iface);
} catch (IllegalStateException e) {
diff --git a/services/core/java/com/android/server/net/NetworkStatsManagerInternal.java b/services/core/java/com/android/server/net/NetworkStatsManagerInternal.java
index 0cb0bc2c..0e9a9da 100644
--- a/services/core/java/com/android/server/net/NetworkStatsManagerInternal.java
+++ b/services/core/java/com/android/server/net/NetworkStatsManagerInternal.java
@@ -37,8 +37,9 @@
public abstract void forceUpdate();
/**
- * Set the quota limit to all registered custom network stats providers.
+ * Set the warning and limit to all registered custom network stats providers.
* Note that invocation of any interface will be sent to all providers.
*/
- public abstract void setStatsProviderLimitAsync(@NonNull String iface, long quota);
+ public abstract void setStatsProviderWarningAndLimitAsync(@NonNull String iface, long warning,
+ long limit);
}
diff --git a/services/core/java/com/android/server/net/NetworkStatsService.java b/services/core/java/com/android/server/net/NetworkStatsService.java
index 445a425..19f5e3c 100644
--- a/services/core/java/com/android/server/net/NetworkStatsService.java
+++ b/services/core/java/com/android/server/net/NetworkStatsService.java
@@ -1693,11 +1693,14 @@
}
@Override
- public void setStatsProviderLimitAsync(@NonNull String iface, long quota) {
- if (LOGV) Slog.v(TAG, "setStatsProviderLimitAsync(" + iface + "," + quota + ")");
- // TODO: Set warning accordingly.
+ public void setStatsProviderWarningAndLimitAsync(
+ @NonNull String iface, long warning, long limit) {
+ if (LOGV) {
+ Slog.v(TAG, "setStatsProviderWarningAndLimitAsync("
+ + iface + "," + warning + "," + limit + ")");
+ }
invokeForAllStatsProviderCallbacks((cb) -> cb.mProvider.onSetWarningAndLimit(iface,
- NetworkStatsProvider.QUOTA_UNLIMITED, quota));
+ warning, limit));
}
}
diff --git a/services/tests/servicestests/src/com/android/server/net/NetworkPolicyManagerServiceTest.java b/services/tests/servicestests/src/com/android/server/net/NetworkPolicyManagerServiceTest.java
index d405113..100d3ea 100644
--- a/services/tests/servicestests/src/com/android/server/net/NetworkPolicyManagerServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/net/NetworkPolicyManagerServiceTest.java
@@ -1773,57 +1773,75 @@
true);
}
- /**
- * Test that when StatsProvider triggers limit reached, new limit will be calculated and
- * re-armed.
- */
- @Test
- public void testStatsProviderLimitReached() throws Exception {
- final int CYCLE_DAY = 15;
-
- final NetworkStats stats = new NetworkStats(0L, 1);
+ private void increaseMockedTotalBytes(NetworkStats stats, long rxBytes, long txBytes) {
stats.insertEntry(TEST_IFACE, UID_A, SET_ALL, TAG_NONE,
- 2999, 1, 2000, 1, 0);
+ rxBytes, 1, txBytes, 1, 0);
when(mStatsService.getNetworkTotalBytes(any(), anyLong(), anyLong()))
.thenReturn(stats.getTotalBytes());
when(mStatsService.getNetworkUidBytes(any(), anyLong(), anyLong()))
.thenReturn(stats);
+ }
+
+ private void triggerOnStatsProviderWarningOrLimitReached() throws InterruptedException {
+ final NetworkPolicyManagerInternal npmi = LocalServices
+ .getService(NetworkPolicyManagerInternal.class);
+ npmi.onStatsProviderWarningOrLimitReached("TEST");
+ // Wait for processing of MSG_STATS_PROVIDER_WARNING_OR_LIMIT_REACHED.
+ postMsgAndWaitForCompletion();
+ verify(mStatsService).forceUpdate();
+ // Wait for processing of MSG_*_INTERFACE_QUOTAS.
+ postMsgAndWaitForCompletion();
+ }
+
+ /**
+ * Test that when StatsProvider triggers warning and limit reached, new quotas will be
+ * calculated and re-armed.
+ */
+ @Test
+ public void testStatsProviderWarningAndLimitReached() throws Exception {
+ final int CYCLE_DAY = 15;
+
+ final NetworkStats stats = new NetworkStats(0L, 1);
+ increaseMockedTotalBytes(stats, 2999, 2000);
// Get active mobile network in place
expectMobileDefaults();
mService.updateNetworks();
- verify(mStatsService).setStatsProviderLimitAsync(TEST_IFACE, Long.MAX_VALUE);
+ verify(mStatsService).setStatsProviderWarningAndLimitAsync(TEST_IFACE, Long.MAX_VALUE,
+ Long.MAX_VALUE);
- // Set limit to 10KB.
+ // Set warning to 7KB and limit to 10KB.
setNetworkPolicies(new NetworkPolicy(
- sTemplateMobileAll, CYCLE_DAY, TIMEZONE_UTC, WARNING_DISABLED, 10000L,
- true));
+ sTemplateMobileAll, CYCLE_DAY, TIMEZONE_UTC, 7000L, 10000L, true));
postMsgAndWaitForCompletion();
- // Verifies that remaining quota is set to providers.
- verify(mStatsService).setStatsProviderLimitAsync(TEST_IFACE, 10000L - 4999L);
-
+ // Verifies that remaining quotas are set to providers.
+ verify(mStatsService).setStatsProviderWarningAndLimitAsync(TEST_IFACE, 2001L, 5001L);
reset(mStatsService);
- // Increase the usage.
- stats.insertEntry(TEST_IFACE, UID_A, SET_ALL, TAG_NONE,
- 1000, 1, 999, 1, 0);
- when(mStatsService.getNetworkTotalBytes(any(), anyLong(), anyLong()))
- .thenReturn(stats.getTotalBytes());
- when(mStatsService.getNetworkUidBytes(any(), anyLong(), anyLong()))
- .thenReturn(stats);
+ // Increase the usage and simulates that limit reached fires earlier by provider,
+ // but actually the quota is not yet reached. Verifies that the limit reached leads to
+ // a force update and new quotas should be set.
+ increaseMockedTotalBytes(stats, 1000, 999);
+ triggerOnStatsProviderWarningOrLimitReached();
+ verify(mStatsService).setStatsProviderWarningAndLimitAsync(TEST_IFACE, 2L, 3002L);
+ reset(mStatsService);
- // Simulates that limit reached fires earlier by provider, but actually the quota is not
- // yet reached.
- final NetworkPolicyManagerInternal npmi = LocalServices
- .getService(NetworkPolicyManagerInternal.class);
- npmi.onStatsProviderWarningOrLimitReached("TEST");
+ // Increase the usage and simulate warning reached, the new warning should be unlimited
+ // since service will disable warning quota to stop lower layer from keep triggering
+ // warning reached event.
+ increaseMockedTotalBytes(stats, 1000L, 1000);
+ triggerOnStatsProviderWarningOrLimitReached();
+ verify(mStatsService).setStatsProviderWarningAndLimitAsync(
+ TEST_IFACE, Long.MAX_VALUE, 1002L);
+ reset(mStatsService);
- // Verifies that the limit reached leads to a force update and new limit should be set.
- postMsgAndWaitForCompletion();
- verify(mStatsService).forceUpdate();
- postMsgAndWaitForCompletion();
- verify(mStatsService).setStatsProviderLimitAsync(TEST_IFACE, 10000L - 4999L - 1999L);
+ // Increase the usage that over the warning and limit, the new limit should set to 1 to
+ // block the network traffic.
+ increaseMockedTotalBytes(stats, 1000L, 1000);
+ triggerOnStatsProviderWarningOrLimitReached();
+ verify(mStatsService).setStatsProviderWarningAndLimitAsync(TEST_IFACE, Long.MAX_VALUE, 1L);
+ reset(mStatsService);
}
/**