Merge "Clean up ASEC unmounting on physical storage." into klp-dev

DirectVolume.cpp

@@ -321,15 +321,16 @@ void DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt
          * Yikes, our mounted partition is going away!
          */
 
+        bool providesAsec = (getFlags() & VOL_PROVIDES_ASEC) != 0;
+        if (providesAsec && mVm->cleanupAsec(this, true)) {
+            SLOGE("Failed to cleanup ASEC - unmount will probably fail!");
+        }
+
         snprintf(msg, sizeof(msg), "Volume %s %s bad removal (%d:%d)",
                  getLabel(), getFuseMountpoint(), major, minor);
         mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval,
                                              msg, false);
 
-	if (mVm->cleanupAsec(this, true)) {
-            SLOGE("Failed to cleanup ASEC - unmount will probably fail!");
-        }
-
         if (Volume::unmountVol(true, false)) {
             SLOGE("Failed to unmount volume on bad removal (%s)", 
                  strerror(errno));

DirectVolume.h

@@ -42,7 +42,6 @@ protected:
     int            mDiskNumParts;
     unsigned int   mPendingPartMap;
     int            mIsDecrypted;
-    int            mFlags;
 
 public:
     DirectVolume(VolumeManager *vm, const fstab_rec* rec, int flags);
@@ -65,7 +64,6 @@ protected:
     int updateDeviceInfo(char *new_path, int new_major, int new_minor);
     virtual void revertDeviceInfo(void);
     int isDecrypted() { return mIsDecrypted; }
-    int getFlags() { return mFlags; }
 
 private:
     void handleDiskAdded(const char *devpath, NetlinkEvent *evt);

Volume.cpp

@@ -72,6 +72,7 @@ const char *Volume::SEC_ASECDIR_EXT   = "/mnt/secure/asec";
  * Path to internal storage where *only* root can access ASEC image files
  */
 const char *Volume::SEC_ASECDIR_INT   = "/data/app-asec";
+
 /*
  * Path to where secure containers are mounted
  */
@@ -480,6 +481,7 @@ int Volume::mountAsecExternal() {
     }
 
     if (fs_prepare_dir(secure_path, 0770, AID_MEDIA_RW, AID_MEDIA_RW) != 0) {
+        SLOGW("fs_prepare_dir failed: %s", strerror(errno));
         return -1;
     }
 
@@ -662,7 +664,7 @@ int Volume::extractMetadata(const char* devicePath) {
     char line[1024];
     char value[128];
     if (fgets(line, sizeof(line), fp) != NULL) {
-        ALOGD("blkid reported: %s", line);
+        ALOGD("blkid identified as %s", line);
 
         char* start = strstr(line, "UUID=") + 5;
         if (sscanf(start, "\"%127[^\"]\"", value) == 1) {
@@ -678,6 +680,7 @@ int Volume::extractMetadata(const char* devicePath) {
             setUserLabel(NULL);
         }
     } else {
+        ALOGW("blkid failed to identify %s", devicePath);
         res = -1;
     }
 

VolumeManager.cpp

@@ -1549,28 +1549,49 @@ bool VolumeManager::isMountpointMounted(const char *mp)
 }
 
 int VolumeManager::cleanupAsec(Volume *v, bool force) {
-    int rc = unmountAllAsecsInDir(Volume::SEC_ASECDIR_EXT);
+    int rc = 0;
+
+    char asecFileName[255];
+
+    AsecIdCollection removeAsec;
+    AsecIdCollection removeObb;
 
-    AsecIdCollection toUnmount;
-    // Find the remaining OBB files that are on external storage.
     for (AsecIdCollection::iterator it = mActiveContainers->begin(); it != mActiveContainers->end();
             ++it) {
         ContainerData* cd = *it;
 
         if (cd->type == ASEC) {
-            // nothing
+            if (findAsec(cd->id, asecFileName, sizeof(asecFileName))) {
+                SLOGE("Couldn't find ASEC %s; cleaning up", cd->id);
+                removeAsec.push_back(cd);
+            } else {
+                SLOGD("Found ASEC at path %s", asecFileName);
+                if (!strncmp(asecFileName, Volume::SEC_ASECDIR_EXT,
+                        strlen(Volume::SEC_ASECDIR_EXT))) {
+                    removeAsec.push_back(cd);
+                }
+            }
         } else if (cd->type == OBB) {
             if (v == getVolumeForFile(cd->id)) {
-                toUnmount.push_back(cd);
+                removeObb.push_back(cd);
             }
         } else {
             SLOGE("Unknown container type %d!", cd->type);
         }
     }
 
-    for (AsecIdCollection::iterator it = toUnmount.begin(); it != toUnmount.end(); ++it) {
+    for (AsecIdCollection::iterator it = removeAsec.begin(); it != removeAsec.end(); ++it) {
         ContainerData *cd = *it;
-        SLOGI("Unmounting ASEC %s (dependant on %s)", cd->id, v->getFuseMountpoint());
+        SLOGI("Unmounting ASEC %s (dependent on %s)", cd->id, v->getLabel());
+        if (unmountAsec(cd->id, force)) {
+            SLOGE("Failed to unmount ASEC %s (%s)", cd->id, strerror(errno));
+            rc = -1;
+        }
+    }
+
+    for (AsecIdCollection::iterator it = removeObb.begin(); it != removeObb.end(); ++it) {
+        ContainerData *cd = *it;
+        SLOGI("Unmounting OBB %s (dependent on %s)", cd->id, v->getLabel());
         if (unmountObb(cd->id, force)) {
             SLOGE("Failed to unmount OBB %s (%s)", cd->id, strerror(errno));
             rc = -1;