136 lines
3.9 KiB
C
136 lines
3.9 KiB
C
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/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _VOLMGR_H
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#define _VOLMGR_H
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#include <pthread.h>
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#include "vold.h"
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#include "blkdev.h"
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#include "media.h"
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#include "devmapper.h"
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#define PROP_EXTERNAL_STORAGE_STATE "EXTERNAL_STORAGE_STATE"
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// these must match the corresponding states in the MediaState enum.
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// A path to the volume mount point follows the colon
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typedef enum volume_state {
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volstate_unknown,
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volstate_nomedia,
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#define VOLD_EVT_NOMEDIA "volume_nomedia:"
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#define VOLD_ES_PVAL_NOMEDIA "removed"
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volstate_unmounted,
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#define VOLD_EVT_UNMOUNTED "volume_unmounted:"
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#define VOLD_ES_PVAL_UNMOUNTED "unmounted"
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volstate_checking,
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#define VOLD_EVT_CHECKING "volume_checking:"
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#define VOLD_ES_PVAL_CHECKING "checking"
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volstate_mounted,
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#define VOLD_EVT_MOUNTED "volume_mounted:"
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#define VOLD_ES_PVAL_MOUNTED "mounted"
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volstate_mounted_ro,
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#define VOLD_EVT_MOUNTED_RO "volume_mounted_ro:"
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#define VOLD_ES_PVAL_MOUNTED_RO "mounted_ro"
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volstate_badremoval,
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#define VOLD_EVT_BADREMOVAL "volume_badremoval:"
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#define VOLD_ES_PVAL_BADREMOVAL "bad_removal"
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volstate_damaged,
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#define VOLD_EVT_DAMAGED "volume_damaged:"
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#define VOLD_ES_PVAL_DAMAGED "unmountable"
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volstate_nofs,
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#define VOLD_EVT_NOFS "volume_nofs:"
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#define VOLD_ES_PVAL_NOFS "nofs"
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volstate_ums,
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#define VOLD_EVT_UMS "volume_ums:"
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#define VOLD_ES_PVAL_UMS "shared"
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volstate_ejecting,
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#define VOLD_EVT_EJECTING "volume_ejecting:"
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#define VOLD_ES_PVAL_EJECTING "ejecting"
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volstate_formatting,
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} volume_state_t;
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struct volume;
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struct volmgr_fstable_entry {
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char *name;
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int (*identify_fn) (blkdev_t *dev);
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int (*check_fn) (blkdev_t *dev);
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int (*mount_fn) (blkdev_t *dev, struct volume *vol, boolean safe_mode);
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boolean case_sensitive_paths;
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};
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struct volmgr_start_args {
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struct volmgr_fstable_entry *fs;
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blkdev_t *dev;
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};
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struct volmgr_reaper_args {
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void (*cb) (struct volume *, void *);
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void *cb_arg;
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};
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#define VOLMGR_MAX_MEDIAPATHS_PER_VOLUME 8
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typedef struct volume {
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char *media_paths[VOLMGR_MAX_MEDIAPATHS_PER_VOLUME];
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media_type_t media_type;
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char *mount_point;
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char *ums_path;
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struct devmapping *dm;
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pthread_mutex_t lock;
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volume_state_t state;
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blkdev_t *dev;
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pid_t worker_pid;
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pthread_t worker_thread;
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union {
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struct volmgr_start_args start_args;
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struct volmgr_reaper_args reaper_args;
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} worker_args;
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boolean worker_running;
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pthread_mutex_t worker_sem;
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struct volmgr_fstable_entry *fs;
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struct volume *next;
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} volume_t;
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int volmgr_consider_disk(blkdev_t *dev);
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int volmgr_notify_eject(blkdev_t *dev, void (* cb) (blkdev_t *));
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int volmgr_send_states(void);
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int volmgr_enable_ums(boolean enable);
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int volmgr_stop_volume_by_mountpoint(char *mount_point);
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int volmgr_start_volume_by_mountpoint(char *mount_point);
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int volmgr_safe_mode(boolean enable);
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int volmgr_format_volume(char *mount_point);
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int volmgr_set_volume_key(char *mount_point, unsigned char *key);
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void KillProcessesWithOpenFiles(const char* mountPoint, boolean sigkill, int *excluded, int num_excluded);
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#endif
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