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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MOUNTD_H__
#define MOUNTD_H__
#define LOG_TAG "mountd"
#include "cutils/log.h"
#include "ASEC.h"
typedef int boolean;
enum {
false = 0,
true = 1
};
#define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
// Set this for logging error messages
#define ENABLE_LOG_ERROR
// set this to log automounter events
#define ENABLE_LOG_MOUNT
// set this to log server events
//#define ENABLE_LOG_SERVER
// set this to log ASEC events
#define ENABLE_LOG_ASEC
#ifdef ENABLE_LOG_ERROR
#define LOG_ERROR(fmt, args...) \
{ LOGE(fmt , ## args); }
#else
#define LOG_ERROR(fmt, args...) \
do { } while (0)
#endif /* ENABLE_LOG_ERROR */
#ifdef ENABLE_LOG_MOUNT
#define LOG_MOUNT(fmt, args...) \
{ LOGD(fmt , ## args); }
#else
#define LOG_MOUNT(fmt, args...) \
do { } while (0)
#endif /* ENABLE_LOG_MOUNT */
#ifdef ENABLE_LOG_SERVER
#define LOG_SERVER(fmt, args...) \
{ LOGD(fmt , ## args); }
#else
#define LOG_SERVER(fmt, args...) \
do { } while (0)
#endif /* ENABLE_LOG_SERVER */
#ifdef ENABLE_LOG_ASEC
#define LOG_ASEC(fmt, args...) \
{ LOGD(fmt , ## args); }
#else
#define LOG_ASEC(fmt, args...) \
do { } while (0)
#endif /* ENABLE_LOG_ASEC */
typedef enum MediaState {
// no media in SD card slot
MEDIA_REMOVED,
// media in SD card slot, but not mounted
MEDIA_UNMOUNTED,
// media in SD card slot and mounted at its mount point
MEDIA_MOUNTED,
// media in SD card slot, unmounted, and shared as a mass storage device
MEDIA_SHARED,
// media was removed from SD card slot, but mount point was not unmounted
// this state is cleared after the mount point is unmounted
MEDIA_BAD_REMOVAL,
// media in SD card slot could not be mounted (corrupt file system?)
MEDIA_UNMOUNTABLE,
} MediaState;
// socket name for connecting to mountd
#define MOUNTD_SOCKET "mountd"
// mountd commands
// these must match the corresponding strings in //device/java/android/android/os/UsbListener.java
#define MOUNTD_ENABLE_UMS "enable_ums"
#define MOUNTD_DISABLE_UMS "disable_ums"
#define MOUNTD_SEND_STATUS "send_status"
// these commands should contain a mount point following the colon
#define MOUNTD_MOUNT_MEDIA "mount_media:"
#define MOUNTD_EJECT_MEDIA "eject_media:"
// mountd events
// these must match the corresponding strings in //device/java/android/android/os/UsbListener.java
#define MOUNTD_UMS_ENABLED "ums_enabled"
#define MOUNTD_UMS_DISABLED "ums_disabled"
#define MOUNTD_UMS_CONNECTED "ums_connected"
#define MOUNTD_UMS_DISCONNECTED "ums_disconnected"
// these events correspond to the states in the MediaState enum.
// a path to the mount point follows the colon.
#define MOUNTD_MEDIA_REMOVED "media_removed:"
#define MOUNTD_MEDIA_UNMOUNTED "media_unmounted:"
#define MOUNTD_MEDIA_MOUNTED "media_mounted:"
#define MOUNTD_MEDIA_MOUNTED_READ_ONLY "media_mounted_ro:"
#define MOUNTD_MEDIA_SHARED "media_shared:"
#define MOUNTD_MEDIA_BAD_REMOVAL "media_bad_removal:"
#define MOUNTD_MEDIA_UNMOUNTABLE "media_unmountable:"
// this event sent to request unmount for media mount point
#define MOUNTD_REQUEST_EJECT "request_eject:"
// system properties
// these must match the corresponding strings in //device/java/android/android/os/Environment.java
#define EXTERNAL_STORAGE_STATE "EXTERNAL_STORAGE_STATE"
#define EXTERNAL_STORAGE_REMOVED "removed"
#define EXTERNAL_STORAGE_UNMOUNTED "unmounted"
#define EXTERNAL_STORAGE_MOUNTED "mounted"
#define EXTERNAL_STORAGE_MOUNTED_READ_ONLY "mounted_ro"
#define EXTERNAL_STORAGE_SHARED "shared"
#define EXTERNAL_STORAGE_BAD_REMOVAL "bad_removal"
#define EXTERNAL_STORAGE_UNMOUNTABLE "unmountable"
// AutoMount.c
boolean IsMassStorageEnabled();
boolean IsMassStorageConnected();
void MountMedia(const char* mountPoint);
void UnmountMedia(const char* mountPoint);
void EnableMassStorage(boolean enable);
// call this before StartAutoMounter() to add a mount point to monitor
void *AddMountPoint(const char* device, const char* mountPoint, const char* driverStorePath,
boolean enableUms);
int AddAsecToMountPoint(void *Mp, const char *name, const char *backing_file,
const char *size, const char *mount_point, const char *crypt);
// start automounter thread
void StartAutoMounter();
// check /proc/mounts for mounted file systems, and notify mount or unmount for any that are in our automount list
void NotifyExistingMounts();
// ASEC.c
void *AsecInit(const char *Name, const char *SrcPath, const char *BackingFile,
const char *Size, const char *DstPath, const char *Crypt);
int AsecStart(void *Handle);
int AsecStop(void *Handle);
void AsecDeinit(void *Handle);
boolean AsecIsStarted(void *Handle);
const char *AsecMountPoint(void *Handle);
// ProcessKiller.c
void KillProcessesWithOpenFiles(const char* mountPoint, boolean sigkill, pid_t *excluded, int num_excluded);
// logwrapper.c
int logwrap(int argc, char* argv[]);
// Server.c
int RunServer();
void SendMassStorageConnected(boolean connected);
void SendUnmountRequest(const char* path);
void NotifyMediaState(const char* path, MediaState state, boolean readOnly);
void NotifyAsecState(AsecState state, const char *argument);
#endif // MOUNTD_H__
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