[ipsec-doze] Add fchown to IpSecService to support doze

Encap sockets are currently created as the system server, and should be
fchown'd to the user for whom it was created on behalf of.

Bug: 62994731
Test: New tests added and run to IpSecService
Change-Id: Icc49e709ae588981e69765fdb77537d7ffbac5fe

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/net/java/com/android/server/IpSecServiceTest.java b/tests/net/java/com/android/server/IpSecServiceTest.java
index f38a9a346f5b..5d1e10eab572 100644
--- a/tests/net/java/com/android/server/IpSecServiceTest.java
+++ b/tests/net/java/com/android/server/IpSecServiceTest.java
@@ -475,4 +475,26 @@ public class IpSecServiceTest {
         testIpSecService.closeUdpEncapsulationSocket(udpEncapResp.resourceId);
         udpEncapResp.fileDescriptor.close();
     }
+
+    @Test
+    public void testOpenUdpEncapsulationSocketCallsSetEncapSocketOwner() throws Exception {
+        IpSecUdpEncapResponse udpEncapResp =
+                mIpSecService.openUdpEncapsulationSocket(0, new Binder());
+
+        FileDescriptor sockFd = udpEncapResp.fileDescriptor.getFileDescriptor();
+        ArgumentMatcher<FileDescriptor> fdMatcher = (arg) -> {
+                    try {
+                        StructStat sockStat = Os.fstat(sockFd);
+                        StructStat argStat = Os.fstat(arg);
+
+                        return sockStat.st_ino == argStat.st_ino
+                                && sockStat.st_dev == argStat.st_dev;
+                    } catch (ErrnoException e) {
+                        return false;
+                    }
+                };
+
+        verify(mMockNetd).ipSecSetEncapSocketOwner(argThat(fdMatcher), eq(Os.getuid()));
+        mIpSecService.closeUdpEncapsulationSocket(udpEncapResp.resourceId);
+    }
 }