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Reapply "Tell netd about local networks"

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This reverts commit cc409153b4.

Change-Id: Ied6bdb9b94e08e2bfe1092765d0f4591e603c3eb
This commit is contained in:
Chalard Jean 2023-10-17 13:23:07 +09:00
commit e0aaca5ac6
1 changed files with 148 additions and 7 deletions
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27
service/src/com/android/server/ConnectivityService.java
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@ -19,6 +19,7 @@ package com.android.server;
import static android.Manifest.permission.RECEIVE_DATA_ACTIVITY_CHANGE;
import static android.app.ActivityManager.UidFrozenStateChangedCallback.UID_FROZEN_STATE_FROZEN;
import static android.content.pm.PackageManager.FEATURE_BLUETOOTH;
import static android.content.pm.PackageManager.FEATURE_LEANBACK;
import static android.content.pm.PackageManager.FEATURE_WATCH;
import static android.content.pm.PackageManager.FEATURE_WIFI;
import static android.content.pm.PackageManager.FEATURE_WIFI_DIRECT;
@ -67,6 +68,7 @@ import static android.net.NetworkCapabilities.NET_CAPABILITY_CAPTIVE_PORTAL;
import static android.net.NetworkCapabilities.NET_CAPABILITY_ENTERPRISE;
import static android.net.NetworkCapabilities.NET_CAPABILITY_FOREGROUND;
import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
import static android.net.NetworkCapabilities.NET_CAPABILITY_LOCAL_NETWORK;
import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_CONGESTED;
import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_METERED;
import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED;
@ -5006,7 +5008,10 @@ public class ConnectivityService extends IConnectivityManager.Stub
!nai.networkAgentConfig.allowBypass /* secure */,
getVpnType(nai), nai.networkAgentConfig.excludeLocalRouteVpn);
} else {
config = new NativeNetworkConfig(nai.network.getNetId(), NativeNetworkType.PHYSICAL,
final boolean hasLocalCap =
nai.networkCapabilities.hasCapability(NET_CAPABILITY_LOCAL_NETWORK);
config = new NativeNetworkConfig(nai.network.getNetId(),
hasLocalCap ? NativeNetworkType.PHYSICAL_LOCAL : NativeNetworkType.PHYSICAL,
getNetworkPermission(nai.networkCapabilities),
false /* secure */,
VpnManager.TYPE_VPN_NONE,
@ -8056,6 +8061,18 @@ public class ConnectivityService extends IConnectivityManager.Stub
return nai == getDefaultNetwork();
}
/**
* Returns whether local agents are supported on this device.
*
* Local agents are supported from U on TVs, and from V on all devices.
*/
@VisibleForTesting
public boolean areLocalAgentsSupported() {
final PackageManager pm = mContext.getPackageManager();
// Local agents are supported starting on U on TVs and on V on everything else.
return mDeps.isAtLeastV() || (mDeps.isAtLeastU() && pm.hasSystemFeature(FEATURE_LEANBACK));
}
/**
* Register a new agent with ConnectivityService to handle a network.
*
@ -8085,6 +8102,12 @@ public class ConnectivityService extends IConnectivityManager.Stub
} else {
enforceNetworkFactoryPermission();
}
final boolean hasLocalCap =
networkCapabilities.hasCapability(NET_CAPABILITY_LOCAL_NETWORK);
if (hasLocalCap && !areLocalAgentsSupported()) {
// Before U, netd doesn't support PHYSICAL_LOCAL networks so this can't work.
throw new IllegalArgumentException("Local agents are not supported in this version");
}
final int uid = mDeps.getCallingUid();
final long token = Binder.clearCallingIdentity();
@ -9190,7 +9213,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
// are Type.LISTEN, but should not have NetworkCallbacks invoked.
return;
}
Bundle bundle = new Bundle();
final Bundle bundle = new Bundle();
// TODO b/177608132: make sure callbacks are indexed by NRIs and not NetworkRequest objects.
// TODO: check if defensive copies of data is needed.
final NetworkRequest nrForCallback = nri.getNetworkRequestForCallback();