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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 _VOLMGR_H
#define _VOLMGR_H
#include <pthread.h>
#include "vold.h"
#include "blkdev.h"
#include "media.h"
#include "devmapper.h"
#define PROP_EXTERNAL_STORAGE_STATE "EXTERNAL_STORAGE_STATE"
// these must match the corresponding states in the MediaState enum.
// A path to the volume mount point follows the colon
typedef enum volume_state {
volstate_unknown,
volstate_nomedia,
#define VOLD_EVT_NOMEDIA "volume_nomedia:"
#define VOLD_ES_PVAL_NOMEDIA "removed"
volstate_unmounted,
#define VOLD_EVT_UNMOUNTED "volume_unmounted:"
#define VOLD_ES_PVAL_UNMOUNTED "unmounted"
volstate_checking,
#define VOLD_EVT_CHECKING "volume_checking:"
#define VOLD_ES_PVAL_CHECKING "checking"
volstate_mounted,
#define VOLD_EVT_MOUNTED "volume_mounted:"
#define VOLD_ES_PVAL_MOUNTED "mounted"
volstate_mounted_ro,
#define VOLD_EVT_MOUNTED_RO "volume_mounted_ro:"
#define VOLD_ES_PVAL_MOUNTED_RO "mounted_ro"
volstate_badremoval,
#define VOLD_EVT_BADREMOVAL "volume_badremoval:"
#define VOLD_ES_PVAL_BADREMOVAL "bad_removal"
volstate_damaged,
#define VOLD_EVT_DAMAGED "volume_damaged:"
#define VOLD_ES_PVAL_DAMAGED "unmountable"
volstate_nofs,
#define VOLD_EVT_NOFS "volume_nofs:"
#define VOLD_ES_PVAL_NOFS "nofs"
volstate_ums,
#define VOLD_EVT_UMS "volume_ums:"
#define VOLD_ES_PVAL_UMS "shared"
volstate_ejecting,
#define VOLD_EVT_EJECTING "volume_ejecting:"
#define VOLD_ES_PVAL_EJECTING "ejecting"
volstate_formatting,
} volume_state_t;
struct volume;
struct volmgr_fstable_entry {
char *name;
int (*identify_fn) (blkdev_t *dev);
int (*check_fn) (blkdev_t *dev);
int (*mount_fn) (blkdev_t *dev, struct volume *vol, boolean safe_mode);
boolean case_sensitive_paths;
};
struct volmgr_start_args {
struct volmgr_fstable_entry *fs;
blkdev_t *dev;
};
struct volmgr_reaper_args {
void (*cb) (struct volume *, void *);
void *cb_arg;
};
#define VOLMGR_MAX_MEDIAPATHS_PER_VOLUME 8
typedef struct volume {
char *media_paths[VOLMGR_MAX_MEDIAPATHS_PER_VOLUME];
media_type_t media_type;
char *mount_point;
char *ums_path;
struct devmapping *dm;
pthread_mutex_t lock;
volume_state_t state;
blkdev_t *dev;
pid_t worker_pid;
pthread_t worker_thread;
union {
struct volmgr_start_args start_args;
struct volmgr_reaper_args reaper_args;
} worker_args;
boolean worker_running;
pthread_mutex_t worker_sem;
struct volmgr_fstable_entry *fs;
struct volume *next;
} volume_t;
int volmgr_consider_disk(blkdev_t *dev);
int volmgr_notify_eject(blkdev_t *dev, void (* cb) (blkdev_t *));
int volmgr_send_states(void);
int volmgr_enable_ums(boolean enable);
int volmgr_stop_volume_by_mountpoint(char *mount_point);
int volmgr_start_volume_by_mountpoint(char *mount_point);
int volmgr_safe_mode(boolean enable);
int volmgr_format_volume(char *mount_point);
int volmgr_set_volume_key(char *mount_point, unsigned char *key);
void KillProcessesWithOpenFiles(const char* mountPoint, boolean sigkill, int *excluded, int num_excluded);
#endif
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