LineageOS/android_packages_modules_Connectivity
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge changes Ib80f814f,Ic605e489

Browse Source 
* changes:
  Use new API - getIpSecNetIdRange() in IpSecService
  Add a new API to get the network ID range of IPSec tunnel interface
This commit is contained in:
Lucas Lin
2021-03-12 03:30:32 +00:00
committed by Gerrit Code Review
parent c9f9c3c5d2 2c264d7a25
commit 2eda97f001
1 changed files with 9 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
services/core/java/com/android/server/IpSecService.java
View File

@@ -56,6 +56,7 @@ import android.system.Os;
import android.system.OsConstants;
import android.text.TextUtils;
import android.util.Log;
import android.util.Range;
import android.util.Slog;
import android.util.SparseArray;
import android.util.SparseBooleanArray;
@@ -756,13 +757,9 @@ public class IpSecService extends IIpSecService.Stub {
}
}
// These values have been reserved in NetIdManager
@VisibleForTesting static final int TUN_INTF_NETID_START = 0xFC00;
public static final int TUN_INTF_NETID_RANGE = 0x0400;
private final SparseBooleanArray mTunnelNetIds = new SparseBooleanArray();
private int mNextTunnelNetIdIndex = 0;
final Range<Integer> mNetIdRange = ConnectivityManager.getIpSecNetIdRange();
private int mNextTunnelNetId = mNetIdRange.getLower();
/**
* Reserves a netId within the range of netIds allocated for IPsec tunnel interfaces
@@ -775,11 +772,13 @@ public class IpSecService extends IIpSecService.Stub {
*/
@VisibleForTesting
int reserveNetId() {
final int range = mNetIdRange.getUpper() - mNetIdRange.getLower() + 1;
synchronized (mTunnelNetIds) {
for (int i = 0; i < TUN_INTF_NETID_RANGE; i++) {
int index = mNextTunnelNetIdIndex;
int netId = index + TUN_INTF_NETID_START;
if (++mNextTunnelNetIdIndex >= TUN_INTF_NETID_RANGE) mNextTunnelNetIdIndex = 0;
for (int i = 0; i < range; i++) {
final int netId = mNextTunnelNetId;
if (++mNextTunnelNetId > mNetIdRange.getUpper()) {
mNextTunnelNetId = mNetIdRange.getLower();
}
if (!mTunnelNetIds.get(netId)) {
mTunnelNetIds.put(netId, true);
return netId;