Use UID as requestID

This change makes all requestIDs use the UID of the creator, ensuring
that rekeys always use the same requestID. This also has the nice
property of separating app's resources from each other, and allowing for
identification of which app/UID allocated the resources from
command-line dumps (eg ip xfrm state show)

Bug: 111841561
Test: Updated tests & passing taimen
Change-Id: I4f1eadcdb795766ae4682b15e41727359c52fa38
diff --git a/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java b/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
index 102cb7c..99a5a69 100644
--- a/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
+++ b/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
@@ -41,9 +41,9 @@
 import android.net.NetworkUtils;
 import android.os.Binder;
 import android.os.ParcelFileDescriptor;
-import android.test.mock.MockContext;
 import android.support.test.filters.SmallTest;
 import android.system.Os;
+import android.test.mock.MockContext;
 
 import java.net.Socket;
 import java.util.Arrays;
@@ -121,6 +121,7 @@
     IpSecService.IpSecServiceConfiguration mMockIpSecSrvConfig;
     IpSecService mIpSecService;
     Network fakeNetwork = new Network(0xAB);
+    int mUid = Os.getuid();
 
     private static final IpSecAlgorithm AUTH_ALGO =
             new IpSecAlgorithm(IpSecAlgorithm.AUTH_HMAC_SHA256, AUTH_KEY, AUTH_KEY.length * 4);
@@ -181,7 +182,7 @@
 
         verify(mMockNetd)
                 .ipSecDeleteSecurityAssociation(
-                        eq(spiResp.resourceId),
+                        eq(mUid),
                         anyString(),
                         anyString(),
                         eq(TEST_SPI),
@@ -189,8 +190,7 @@
                         anyInt());
 
         // Verify quota and RefcountedResource objects cleaned up
-        IpSecService.UserRecord userRecord =
-                mIpSecService.mUserResourceTracker.getUserRecord(Os.getuid());
+        IpSecService.UserRecord userRecord = mIpSecService.mUserResourceTracker.getUserRecord(mUid);
         assertEquals(0, userRecord.mSpiQuotaTracker.mCurrent);
         try {
             userRecord.mSpiRecords.getRefcountedResourceOrThrow(spiResp.resourceId);
@@ -209,8 +209,7 @@
                 mIpSecService.allocateSecurityParameterIndex(
                         mDestinationAddr, TEST_SPI, new Binder());
 
-        IpSecService.UserRecord userRecord =
-                mIpSecService.mUserResourceTracker.getUserRecord(Os.getuid());
+        IpSecService.UserRecord userRecord = mIpSecService.mUserResourceTracker.getUserRecord(mUid);
         IpSecService.RefcountedResource refcountedRecord =
                 userRecord.mSpiRecords.getRefcountedResourceOrThrow(spiResp.resourceId);
 
@@ -218,7 +217,7 @@
 
         verify(mMockNetd)
                 .ipSecDeleteSecurityAssociation(
-                        eq(spiResp.resourceId),
+                        eq(mUid),
                         anyString(),
                         anyString(),
                         eq(TEST_SPI),
@@ -270,7 +269,7 @@
 
         verify(mMockNetd)
                 .ipSecAddSecurityAssociation(
-                        eq(createTransformResp.resourceId),
+                        eq(mUid),
                         anyInt(),
                         anyString(),
                         anyString(),
@@ -305,7 +304,7 @@
 
         verify(mMockNetd)
                 .ipSecAddSecurityAssociation(
-                        eq(createTransformResp.resourceId),
+                        eq(mUid),
                         anyInt(),
                         anyString(),
                         anyString(),
@@ -361,13 +360,12 @@
 
         IpSecTransformResponse createTransformResp =
                 mIpSecService.createTransform(ipSecConfig, new Binder(), "blessedPackage");
-        IpSecService.UserRecord userRecord =
-                mIpSecService.mUserResourceTracker.getUserRecord(Os.getuid());
+        IpSecService.UserRecord userRecord = mIpSecService.mUserResourceTracker.getUserRecord(mUid);
         assertEquals(1, userRecord.mSpiQuotaTracker.mCurrent);
         mIpSecService.releaseSecurityParameterIndex(ipSecConfig.getSpiResourceId());
         verify(mMockNetd, times(0))
                 .ipSecDeleteSecurityAssociation(
-                        eq(createTransformResp.resourceId),
+                        eq(mUid),
                         anyString(),
                         anyString(),
                         eq(TEST_SPI),
@@ -389,7 +387,7 @@
 
         verify(mMockNetd, times(1))
                 .ipSecDeleteSecurityAssociation(
-                        eq(createTransformResp.resourceId),
+                        eq(mUid),
                         anyString(),
                         anyString(),
                         eq(TEST_SPI),
@@ -397,8 +395,7 @@
                         anyInt());
 
         // Verify quota and RefcountedResource objects cleaned up
-        IpSecService.UserRecord userRecord =
-                mIpSecService.mUserResourceTracker.getUserRecord(Os.getuid());
+        IpSecService.UserRecord userRecord = mIpSecService.mUserResourceTracker.getUserRecord(mUid);
         assertEquals(0, userRecord.mTransformQuotaTracker.mCurrent);
         assertEquals(1, userRecord.mSpiQuotaTracker.mCurrent);
 
@@ -433,8 +430,7 @@
         IpSecTransformResponse createTransformResp =
                 mIpSecService.createTransform(ipSecConfig, new Binder(), "blessedPackage");
 
-        IpSecService.UserRecord userRecord =
-                mIpSecService.mUserResourceTracker.getUserRecord(Os.getuid());
+        IpSecService.UserRecord userRecord = mIpSecService.mUserResourceTracker.getUserRecord(mUid);
         IpSecService.RefcountedResource refcountedRecord =
                 userRecord.mTransformRecords.getRefcountedResourceOrThrow(
                         createTransformResp.resourceId);
@@ -443,7 +439,7 @@
 
         verify(mMockNetd)
                 .ipSecDeleteSecurityAssociation(
-                        eq(createTransformResp.resourceId),
+                        eq(mUid),
                         anyString(),
                         anyString(),
                         eq(TEST_SPI),
@@ -477,7 +473,7 @@
         verify(mMockNetd)
                 .ipSecApplyTransportModeTransform(
                         eq(pfd.getFileDescriptor()),
-                        eq(resourceId),
+                        eq(mUid),
                         eq(IpSecManager.DIRECTION_OUT),
                         anyString(),
                         anyString(),
@@ -509,8 +505,7 @@
                 createAndValidateTunnel(mSourceAddr, mDestinationAddr, "blessedPackage");
 
         // Check that we have stored the tracking object, and retrieve it
-        IpSecService.UserRecord userRecord =
-                mIpSecService.mUserResourceTracker.getUserRecord(Os.getuid());
+        IpSecService.UserRecord userRecord = mIpSecService.mUserResourceTracker.getUserRecord(mUid);
         IpSecService.RefcountedResource refcountedRecord =
                 userRecord.mTunnelInterfaceRecords.getRefcountedResourceOrThrow(
                         createTunnelResp.resourceId);
@@ -530,8 +525,7 @@
         IpSecTunnelInterfaceResponse createTunnelResp =
                 createAndValidateTunnel(mSourceAddr, mDestinationAddr, "blessedPackage");
 
-        IpSecService.UserRecord userRecord =
-                mIpSecService.mUserResourceTracker.getUserRecord(Os.getuid());
+        IpSecService.UserRecord userRecord = mIpSecService.mUserResourceTracker.getUserRecord(mUid);
 
         mIpSecService.deleteTunnelInterface(createTunnelResp.resourceId, "blessedPackage");
 
@@ -551,8 +545,7 @@
         IpSecTunnelInterfaceResponse createTunnelResp =
                 createAndValidateTunnel(mSourceAddr, mDestinationAddr, "blessedPackage");
 
-        IpSecService.UserRecord userRecord =
-                mIpSecService.mUserResourceTracker.getUserRecord(Os.getuid());
+        IpSecService.UserRecord userRecord = mIpSecService.mUserResourceTracker.getUserRecord(mUid);
         IpSecService.RefcountedResource refcountedRecord =
                 userRecord.mTunnelInterfaceRecords.getRefcountedResourceOrThrow(
                         createTunnelResp.resourceId);