Merge "Enable searching for mounted public volumes under any user" into main am: 52b4e75

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3431354

Change-Id: I5fabd207eb42a10b66a436a55b0d39bdce42e377
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

Author: Treehugger Robot

cmds/installd/InstalldNativeService.cpp

@@ -119,7 +119,6 @@ static constexpr const char* kFuseProp = "persist.sys.fuse";
  */
 static constexpr const char* kAppDataIsolationEnabledProperty = "persist.zygote.app_data_isolation";
 static constexpr const char* kMntSdcardfs = "/mnt/runtime/default/";
-static constexpr const char* kMntFuse = "/mnt/pass_through/0/";
 
 static std::atomic<bool> sAppDataIsolationEnabled(false);
 
@@ -3697,7 +3696,9 @@ binder::Status InstalldNativeService::invalidateMounts() {
         std::getline(in, ignored);
 
         if (android::base::GetBoolProperty(kFuseProp, false)) {
-            if (target.find(kMntFuse) == 0) {
+            const std::regex kMntFuseRe =
+                    std::regex(R"(^/mnt/pass_through/(0|[0-9]+/[A-Z0-9]{4}-[A-Z0-9]{4}).*)");
+            if (std::regex_match(target, kMntFuseRe)) {
                 LOG(DEBUG) << "Found storage mount " << source << " at " << target;
                 mStorageMounts[source] = target;
             }