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Merge "Guess the right encap/timeout for the VCN"

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This commit is contained in:
Jean Chalard
2023-04-28 05:18:59 +00:00
committed by Gerrit Code Review
parent 7f5898996c 995dda7648
commit ac189d4a55
1 changed files with 36 additions and 9 deletions
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45
services/core/java/com/android/server/connectivity/Vpn.java
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@@ -85,6 +85,7 @@ import android.net.NetworkScore;
import android.net.NetworkSpecifier;
import android.net.RouteInfo;
import android.net.TelephonyNetworkSpecifier;
import android.net.TransportInfo;
import android.net.UidRangeParcel;
import android.net.UnderlyingNetworkInfo;
import android.net.Uri;
@@ -107,6 +108,8 @@ import android.net.ipsec.ike.exceptions.IkeNetworkLostException;
import android.net.ipsec.ike.exceptions.IkeNonProtocolException;
import android.net.ipsec.ike.exceptions.IkeProtocolException;
import android.net.ipsec.ike.exceptions.IkeTimeoutException;
import android.net.vcn.VcnGatewayConnectionConfig;
import android.net.vcn.VcnTransportInfo;
import android.os.Binder;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
@@ -3556,39 +3559,63 @@ public class Vpn {
}
private int guessEspIpVersionForNetwork() {
final CarrierConfigInfo carrierconfig = getCarrierConfig();
if (mUnderlyingNetworkCapabilities.getTransportInfo() instanceof VcnTransportInfo) {
Log.d(TAG, "Running over VCN, esp IP version is auto");
return ESP_IP_VERSION_AUTO;
}
final CarrierConfigInfo carrierconfig = getCarrierConfigForUnderlyingNetwork();
final int ipVersion = (carrierconfig != null)
? carrierconfig.ipVersion : ESP_IP_VERSION_AUTO;
if (carrierconfig != null) {
Log.d(TAG, "Get customized IP version(" + ipVersion + ") on SIM("
Log.d(TAG, "Get customized IP version (" + ipVersion + ") on SIM (mccmnc="
+ carrierconfig.mccMnc + ")");
}
return ipVersion;
}
private int guessEspEncapTypeForNetwork() {
final CarrierConfigInfo carrierconfig = getCarrierConfig();
if (mUnderlyingNetworkCapabilities.getTransportInfo() instanceof VcnTransportInfo) {
Log.d(TAG, "Running over VCN, encap type is auto");
return ESP_ENCAP_TYPE_AUTO;
}
final CarrierConfigInfo carrierconfig = getCarrierConfigForUnderlyingNetwork();
final int encapType = (carrierconfig != null)
? carrierconfig.encapType : ESP_ENCAP_TYPE_AUTO;
if (carrierconfig != null) {
Log.d(TAG, "Get customized encap type(" + encapType + ") on SIM("
Log.d(TAG, "Get customized encap type (" + encapType + ") on SIM (mccmnc="
+ carrierconfig.mccMnc + ")");
}
return encapType;
}
private int guessNattKeepaliveTimerForNetwork() {
final CarrierConfigInfo carrierconfig = getCarrierConfig();
final int natKeepalive = (carrierconfig != null)
final TransportInfo transportInfo = mUnderlyingNetworkCapabilities.getTransportInfo();
if (transportInfo instanceof VcnTransportInfo) {
final int nattKeepaliveSec =
((VcnTransportInfo) transportInfo).getMinUdpPort4500NatTimeoutSeconds();
Log.d(TAG, "Running over VCN, keepalive timer : " + nattKeepaliveSec + "s");
if (VcnGatewayConnectionConfig.MIN_UDP_PORT_4500_NAT_TIMEOUT_UNSET
!= nattKeepaliveSec) {
return nattKeepaliveSec;
}
// else fall back to carrier config, if any
}
final CarrierConfigInfo carrierconfig = getCarrierConfigForUnderlyingNetwork();
final int nattKeepaliveSec = (carrierconfig != null)
? carrierconfig.keepaliveDelayMs : AUTOMATIC_KEEPALIVE_DELAY_SECONDS;
if (carrierconfig != null) {
Log.d(TAG, "Get customized keepalive(" + natKeepalive + ") on SIM("
Log.d(TAG, "Get customized keepalive (" + nattKeepaliveSec + "s) on SIM (mccmnc="
+ carrierconfig.mccMnc + ")");
}
return natKeepalive;
return nattKeepaliveSec;
}
private CarrierConfigInfo getCarrierConfig() {
/**
* Returns the carrier config for the underlying network, or null if not a cell network.
*/
@Nullable
private CarrierConfigInfo getCarrierConfigForUnderlyingNetwork() {
final int subId = getCellSubIdForNetworkCapabilities(mUnderlyingNetworkCapabilities);
if (subId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
Log.d(TAG, "Underlying network is not a cellular network");