commit 2ac035fdc577a843d07f385dbe3c4e2229d886dc
author Phil Burk <philburk@google.com> Fri Jun 23 14:51:14 2017 -0700
committer Phil Burk <philburk@google.com> Thu Jun 29 18:26:52 2017 +0000
tree 5715d5f033318a3cbd5a89b73ee32334bdc6ea9a
parent f3ffd1ced8c4709388f8ed5c9a49284f36aa5b97

aaudio: prevent apps from affecting a stream they do not own

Bug: 62951648
Test: need test that hacks a stream handle from another user ID
Change-Id: I342f2a4cf9350c949f346b3c867d7f9e035c76b4

services/oboeservice/AAudioServiceStreamBase.h

diff --git a/services/oboeservice/AAudioServiceStreamBase.h b/services/oboeservice/AAudioServiceStreamBase.h
index 46ceeae..da0b537 100644
--- a/services/oboeservice/AAudioServiceStreamBase.h
+++ b/services/oboeservice/AAudioServiceStreamBase.h
@@ -113,6 +113,13 @@
 
     void processFatalError();
 
+    uid_t getOwnerUserId() const {
+        return mOwnerUserId;
+    }
+    void setOwnerUserId(uid_t uid) {
+        mOwnerUserId = uid;
+    }
+
 protected:
     aaudio_result_t writeUpMessageQueue(AAudioServiceMessage *command);
 
@@ -138,6 +145,7 @@
     int32_t            mSamplesPerFrame = AAUDIO_UNSPECIFIED;
     int32_t            mSampleRate = AAUDIO_UNSPECIFIED;
     int32_t            mCapacityInFrames = AAUDIO_UNSPECIFIED;
+    uid_t              mOwnerUserId = -1;
 };
 
 } /* namespace aaudio */