VolumeManager.h revision a28056b38275003895ff5d9576681aca01544822
1f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat/* 2f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Copyright (C) 2008 The Android Open Source Project 3f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 4f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Licensed under the Apache License, Version 2.0 (the "License"); 5f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * you may not use this file except in compliance with the License. 6f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * You may obtain a copy of the License at 7f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 8f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * http://www.apache.org/licenses/LICENSE-2.0 9f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 10f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Unless required by applicable law or agreed to in writing, software 11f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * distributed under the License is distributed on an "AS IS" BASIS, 12f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * See the License for the specific language governing permissions and 14f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * limitations under the License. 15f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat */ 16f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 17f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#ifndef _VOLUMEMANAGER_H 18f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#define _VOLUMEMANAGER_H 19f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 20f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <pthread.h> 21f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 22f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <utils/List.h> 23f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <sysutils/SocketListener.h> 24f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 25f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include "Volume.h" 26f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 27acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root/* The length of an MD5 hash when encoded into ASCII hex characters */ 28acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root#define MD5_ASCII_LENGTH_PLUS_NULL ((MD5_DIGEST_LENGTH*2)+1) 29acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root 30cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Roottypedef enum { ASEC, OBB } container_type_t; 31cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root 32cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Rootclass ContainerData { 33cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Rootpublic: 34cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root ContainerData(char* _id, container_type_t _type) 35cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root : id(_id) 36cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root , type(_type) 37cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root {} 38cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root 39cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root ~ContainerData() { 40cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root if (id != NULL) { 41cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root free(id); 42cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root id = NULL; 43cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root } 44cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root } 45cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root 46cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root char *id; 47cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root container_type_t type; 48cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root}; 49cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root 50cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Roottypedef android::List<ContainerData*> AsecIdCollection; 5188705166ab82057090a070c6d4200c3d9db76f11San Mehat 52f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatclass VolumeManager { 53f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatprivate: 54f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat static VolumeManager *sInstance; 55f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 56f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatprivate: 57f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat SocketListener *mBroadcaster; 58f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 59f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat VolumeCollection *mVolumes; 6088705166ab82057090a070c6d4200c3d9db76f11San Mehat AsecIdCollection *mActiveContainers; 6199635f6c289fe2528c226403ea215c917ce86037Mike Lockwood bool mUsbMassStorageEnabled; 6299635f6c289fe2528c226403ea215c917ce86037Mike Lockwood bool mUsbConnected; 63d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat bool mDebug; 64f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 65a28056b38275003895ff5d9576681aca01544822Mike Lockwood // for adjusting /proc/sys/vm/dirty_ratio when UMS is active 66a28056b38275003895ff5d9576681aca01544822Mike Lockwood int mUmsSharingCount; 67a28056b38275003895ff5d9576681aca01544822Mike Lockwood int mSavedDirtyRatio; 68a28056b38275003895ff5d9576681aca01544822Mike Lockwood int mUmsDirtyRatio; 69a28056b38275003895ff5d9576681aca01544822Mike Lockwood 70f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatpublic: 71f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat virtual ~VolumeManager(); 72f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 73f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat int start(); 74f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat int stop(); 75f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 76fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat void handleBlockEvent(NetlinkEvent *evt); 77a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat void handleSwitchEvent(NetlinkEvent *evt); 7899635f6c289fe2528c226403ea215c917ce86037Mike Lockwood void handleUsbCompositeEvent(NetlinkEvent *evt); 79f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 80f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat int addVolume(Volume *v); 81f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 82f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat int listVolumes(SocketClient *cli); 8349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat int mountVolume(const char *label); 844ba8948dc16463053e21cda5744f519a555080d0San Mehat int unmountVolume(const char *label, bool force); 85a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int shareVolume(const char *label, const char *method); 86a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int unshareVolume(const char *label, const char *method); 87a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int shareAvailable(const char *method, bool *avail); 88eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat int shareEnabled(const char *path, const char *method, bool *enabled); 89a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int simulate(const char *cmd, const char *arg); 90a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int formatVolume(const char *label); 91fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 92fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root /* ASEC */ 938b8f71b1d760411279f3b07a5c97709f052c689eSan Mehat int createAsec(const char *id, unsigned numSectors, const char *fstype, 94a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat const char *key, int ownerUid); 95a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int finalizeAsec(const char *id); 964ba8948dc16463053e21cda5744f519a555080d0San Mehat int destroyAsec(const char *id, bool force); 97a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int mountAsec(const char *id, const char *key, int ownerUid); 984ba8948dc16463053e21cda5744f519a555080d0San Mehat int unmountAsec(const char *id, bool force); 99048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat int renameAsec(const char *id1, const char *id2); 100a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int getAsecMountPath(const char *id, char *buffer, int maxlen); 101f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 102fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root /* Loopback images */ 103508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root int listMountedObbs(SocketClient* cli); 104508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root int mountObb(const char *fileName, const char *key, int ownerUid); 105508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root int unmountObb(const char *fileName, bool force); 106508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root int getObbMountPath(const char *id, char *buffer, int maxlen); 107fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 108fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root /* Shared between ASEC and Loopback images */ 109fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root int unmountLoopImage(const char *containerId, const char *loopId, 110fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root const char *fileName, const char *mountPoint, bool force); 111fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 112d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat void setDebug(bool enable); 113d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 1141a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat // XXX: Post froyo this should be moved and cleaned up 1151a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat int cleanupAsec(Volume *v, bool force); 1160cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat 117f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat void setBroadcaster(SocketListener *sl) { mBroadcaster = sl; } 118f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat SocketListener *getBroadcaster() { return mBroadcaster; } 119f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 120f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat static VolumeManager *Instance(); 121f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 122d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat static char *asecHash(const char *id, char *buffer, size_t len); 1231a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat 124f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatprivate: 125f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat VolumeManager(); 12699635f6c289fe2528c226403ea215c917ce86037Mike Lockwood void readInitialState(); 12749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *lookupVolume(const char *label); 128a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat bool isMountpointMounted(const char *mp); 12999635f6c289fe2528c226403ea215c917ce86037Mike Lockwood 13099635f6c289fe2528c226403ea215c917ce86037Mike Lockwood inline bool massStorageAvailable() const { return mUsbMassStorageEnabled && mUsbConnected; } 13199635f6c289fe2528c226403ea215c917ce86037Mike Lockwood void notifyUmsAvailable(bool available); 132f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat}; 133f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#endif 134