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Update to Diagnostic Callback flows for multilayer

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Updates to ConnectivityDiagnosticsCallback flows that directly accessed
the NRI 'request' member to now instead use mRequests. This will be done
by first not allowing multilayer requests on registration of a
connectivity diagnostic and then accessing the '0' index of mRequests.

Bug: 174187714
Bug: 171991028
Test: atest FrameworksNetTests
atest FrameworksNetIntegrationTests
atest CtsNetTestCasesLatestSdk

Change-Id: Ida98036b70fa290a214ee23236bfd0aad08e90a3
This commit is contained in:
James Mattis
2020-11-24 17:40:49 -08:00
parent 9f2c15890c
commit 626c042a99
1 changed files with 13 additions and 4 deletions
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17
services/core/java/com/android/server/ConnectivityService.java
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@@ -3591,8 +3591,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
private boolean isNetworkPotentialSatisfier(
@NonNull final NetworkAgentInfo candidate, @NonNull final NetworkRequestInfo nri) {
// listen requests won't keep up a network satisfying it. If this is not a multilayer
// request, we can return immediately. For multilayer requests, we have to check to see if
// any of the multilayer requests may have a potential satisfier.
// request, return immediately. For multilayer requests, check to see if any of the
// multilayer requests may have a potential satisfier.
if (!nri.isMultilayerRequest() && nri.mRequests.get(0).isListen()) {
return false;
}
@@ -8233,6 +8233,13 @@ public class ConnectivityService extends IConnectivityManager.Stub
final IBinder iCb = cb.asBinder();
final NetworkRequestInfo nri = cbInfo.mRequestInfo;
// Connectivity Diagnostics are meant to be used with a single network request. It would be
// confusing for these networks to change when an NRI is satisfied in another layer.
if (nri.isMultilayerRequest()) {
throw new IllegalArgumentException("Connectivity Diagnostics do not support multilayer "
+ "network requests.");
}
// This means that the client registered the same callback multiple times. Do
// not override the previous entry, and exit silently.
if (mConnectivityDiagnosticsCallbacks.containsKey(iCb)) {
@@ -8259,7 +8266,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
synchronized (mNetworkForNetId) {
for (int i = 0; i < mNetworkForNetId.size(); i++) {
final NetworkAgentInfo nai = mNetworkForNetId.valueAt(i);
if (nai.satisfies(nri.request)) {
// Connectivity Diagnostics rejects multilayer requests at registration hence get(0)
if (nai.satisfies(nri.mRequests.get(0))) {
matchingNetworks.add(nai);
}
}
@@ -8387,7 +8395,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
mConnectivityDiagnosticsCallbacks.entrySet()) {
final ConnectivityDiagnosticsCallbackInfo cbInfo = entry.getValue();
final NetworkRequestInfo nri = cbInfo.mRequestInfo;
if (nai.satisfies(nri.request)) {
// Connectivity Diagnostics rejects multilayer requests at registration hence get(0).
if (nai.satisfies(nri.mRequests.get(0))) {
if (checkConnectivityDiagnosticsPermissions(
nri.mPid, nri.mUid, nai, cbInfo.mCallingPackageName)) {
results.add(entry.getValue().mCb);