Update StorageManagerService handling of packages info.

Instead of maintaining local copy of all appIds and sandboxIds,
StorageManagerService will just get required packages info
from PackageManagerService when an user starts and passes it
to vold.

Bug: 117988901
Test: manual
Change-Id: Idab274529e843784c8804929e920c3af63032690
diff --git a/VoldNativeService.cpp b/VoldNativeService.cpp
index 11a9398..5529f67 100644
--- a/VoldNativeService.cpp
+++ b/VoldNativeService.cpp
@@ -358,12 +358,16 @@
 }
 
 binder::Status VoldNativeService::onUserStarted(int32_t userId,
-                                                const std::vector<std::string>& packageNames) {
+                                                const std::vector<std::string>& packageNames,
+                                                const std::vector<int>& appIds,
+                                                const std::vector<std::string>& sandboxIds) {
     ENFORCE_UID(AID_SYSTEM);
     CHECK_ARGUMENT_PACKAGE_NAMES(packageNames);
+    CHECK_ARGUMENT_SANDBOX_IDS(sandboxIds);
     ACQUIRE_LOCK;
 
-    return translate(VolumeManager::Instance()->onUserStarted(userId, packageNames));
+    return translate(
+        VolumeManager::Instance()->onUserStarted(userId, packageNames, appIds, sandboxIds));
 }
 
 binder::Status VoldNativeService::onUserStopped(int32_t userId) {
@@ -899,7 +903,7 @@
 }
 
 binder::Status VoldNativeService::destroySandboxForApp(const std::string& packageName,
-                                                       int32_t appId, const std::string& sandboxId,
+                                                       const std::string& sandboxId,
                                                        int32_t userId) {
     ENFORCE_UID(AID_SYSTEM);
     CHECK_ARGUMENT_PACKAGE_NAME(packageName);
@@ -907,7 +911,7 @@
     ACQUIRE_LOCK;
 
     return translate(
-        VolumeManager::Instance()->destroySandboxForApp(packageName, appId, sandboxId, userId));
+        VolumeManager::Instance()->destroySandboxForApp(packageName, sandboxId, userId));
 }
 
 binder::Status VoldNativeService::startCheckpoint(int32_t retry) {
diff --git a/VoldNativeService.h b/VoldNativeService.h
index 8a3ac00..aea0f1a 100644
--- a/VoldNativeService.h
+++ b/VoldNativeService.h
@@ -39,7 +39,9 @@
 
     binder::Status onUserAdded(int32_t userId, int32_t userSerial);
     binder::Status onUserRemoved(int32_t userId);
-    binder::Status onUserStarted(int32_t userId, const std::vector<std::string>& packageNames);
+    binder::Status onUserStarted(int32_t userId, const std::vector<std::string>& packageNames,
+                                 const std::vector<int>& appIds,
+                                 const std::vector<std::string>& sandboxIds);
     binder::Status onUserStopped(int32_t userId);
 
     binder::Status addAppIds(const std::vector<std::string>& packageNames,
@@ -118,7 +120,7 @@
 
     binder::Status prepareSandboxForApp(const std::string& packageName, int32_t appId,
                                         const std::string& sandboxId, int32_t userId);
-    binder::Status destroySandboxForApp(const std::string& packageName, int32_t appId,
+    binder::Status destroySandboxForApp(const std::string& packageName,
                                         const std::string& sandboxId, int32_t userId);
 
     binder::Status startCheckpoint(int32_t retry);
diff --git a/VolumeManager.cpp b/VolumeManager.cpp
index 5b0f073..d38052d 100644
--- a/VolumeManager.cpp
+++ b/VolumeManager.cpp
@@ -761,7 +761,9 @@
     return 0;
 }
 
-int VolumeManager::onUserStarted(userid_t userId, const std::vector<std::string>& packageNames) {
+int VolumeManager::onUserStarted(userid_t userId, const std::vector<std::string>& packageNames,
+                                 const std::vector<int>& appIds,
+                                 const std::vector<std::string>& sandboxIds) {
     LOG(VERBOSE) << "onUserStarted: " << userId;
     // Note that sometimes the system will spin up processes from Zygote
     // before actually starting the user, so we're okay if Zygote
@@ -771,6 +773,10 @@
 
     mStartedUsers.insert(userId);
     mUserPackages[userId] = packageNames;
+    for (size_t i = 0; i < packageNames.size(); ++i) {
+        mAppIds[packageNames[i]] = appIds[i];
+        mSandboxIds[appIds[i]] = sandboxIds[i];
+    }
     if (mPrimary) {
         linkPrimary(userId);
     }
@@ -852,13 +858,13 @@
     return prepareSandboxes(userId, {packageName}, visibleVolLabels);
 }
 
-int VolumeManager::destroySandboxForApp(const std::string& packageName, appid_t appId,
+int VolumeManager::destroySandboxForApp(const std::string& packageName,
                                         const std::string& sandboxId, userid_t userId) {
     if (!GetBoolProperty(kIsolatedStorage, false)) {
         return 0;
     }
-    LOG(VERBOSE) << "destroySandboxForApp: " << packageName << ", appId=" << appId
-                 << ", sandboxId=" << sandboxId << ", userId=" << userId;
+    LOG(VERBOSE) << "destroySandboxForApp: " << packageName << ", sandboxId=" << sandboxId
+                 << ", userId=" << userId;
     auto& userPackages = mUserPackages[userId];
     std::remove(userPackages.begin(), userPackages.end(), packageName);
     // If the package is not uninstalled in any other users, remove appId and sandboxId
@@ -872,8 +878,11 @@
         }
     }
     if (!installedInAnyUser) {
-        mAppIds.erase(packageName);
-        mSandboxIds.erase(appId);
+        const auto& entry = mAppIds.find(packageName);
+        if (entry != mAppIds.end()) {
+            mSandboxIds.erase(entry->second);
+            mAppIds.erase(entry);
+        }
     }
 
     std::vector<std::string> visibleVolLabels;
diff --git a/VolumeManager.h b/VolumeManager.h
index 8982d8f..1cbc4bf 100644
--- a/VolumeManager.h
+++ b/VolumeManager.h
@@ -90,7 +90,8 @@
 
     int onUserAdded(userid_t userId, int userSerialNumber);
     int onUserRemoved(userid_t userId);
-    int onUserStarted(userid_t userId, const std::vector<std::string>& packageNames);
+    int onUserStarted(userid_t userId, const std::vector<std::string>& packageNames,
+                      const std::vector<int>& appIds, const std::vector<std::string>& sandboxIds);
     int onUserStopped(userid_t userId);
 
     int addAppIds(const std::vector<std::string>& packageNames, const std::vector<int32_t>& appIds);
@@ -98,8 +99,8 @@
                       const std::vector<std::string>& sandboxIds);
     int prepareSandboxForApp(const std::string& packageName, appid_t appId,
                              const std::string& sandboxId, userid_t userId);
-    int destroySandboxForApp(const std::string& packageName, appid_t appId,
-                             const std::string& sandboxId, userid_t userId);
+    int destroySandboxForApp(const std::string& packageName, const std::string& sandboxId,
+                             userid_t userId);
 
     int onVolumeMounted(android::vold::VolumeBase* vol);
     int onVolumeUnmounted(android::vold::VolumeBase* vol);
diff --git a/binder/android/os/IVold.aidl b/binder/android/os/IVold.aidl
index 96301b3..b1846d0 100644
--- a/binder/android/os/IVold.aidl
+++ b/binder/android/os/IVold.aidl
@@ -29,7 +29,8 @@
 
     void onUserAdded(int userId, int userSerial);
     void onUserRemoved(int userId);
-    void onUserStarted(int userId, in @utf8InCpp String[] packageNames);
+    void onUserStarted(int userId, in @utf8InCpp String[] packageNames, in int[] appIds,
+            in @utf8InCpp String[] sandboxIds);
     void onUserStopped(int userId);
 
     void addAppIds(in @utf8InCpp String[] packageNames, in int[] appIds);
@@ -101,7 +102,7 @@
 
     void prepareSandboxForApp(in @utf8InCpp String packageName, int appId,
                               in @utf8InCpp String sandboxId, int userId);
-    void destroySandboxForApp(in @utf8InCpp String packageName, int appId,
+    void destroySandboxForApp(in @utf8InCpp String packageName,
                               in @utf8InCpp String sandboxId, int userId);
 
     void startCheckpoint(int retry);