commit f021200579ab052b5c8c1ececade191c5bf3b580
author Steven Moreland <smoreland@google.com> Wed Dec 26 13:59:23 2018 -0800
committer Steven Moreland <smoreland@google.com> Thu Jan 10 15:57:07 2019 -0800
tree f80fa883d70072ab49a574f769470685501ce897
parent bcb4be70fab707a300c1a83920805e984fcb49b8

getCallingSid: get calling security context

This call gets the security context of the calling process when
requested.

Bug: 121035042
Test: boot

Change-Id: Ia8a4c0cb4a9c86dcc0d3b7583014237f879a3074

libs/binder/Parcel.cpp

diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index d285030..f779d6e 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -220,7 +220,7 @@
     }
 
     if (binder != nullptr) {
-        IBinder *local = binder->localBinder();
+        BBinder *local = binder->localBinder();
         if (!local) {
             BpBinder *proxy = binder->remoteBinder();
             if (proxy == nullptr) {
@@ -232,6 +232,9 @@
             obj.handle = handle;
             obj.cookie = 0;
         } else {
+            if (local->isRequestingSid()) {
+                obj.flags |= FLAT_BINDER_FLAG_TXN_SECURITY_CTX;
+            }
             obj.hdr.type = BINDER_TYPE_BINDER;
             obj.binder = reinterpret_cast<uintptr_t>(local->getWeakRefs());
             obj.cookie = reinterpret_cast<uintptr_t>(local);