The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright (C) 2008 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #ifndef _VOLMGR_H |
| 19 | #define _VOLMGR_H |
| 20 | |
| 21 | #include <pthread.h> |
| 22 | |
| 23 | #include "vold.h" |
| 24 | #include "blkdev.h" |
| 25 | #include "media.h" |
| 26 | #include "devmapper.h" |
| 27 | |
| 28 | #define PROP_EXTERNAL_STORAGE_STATE "EXTERNAL_STORAGE_STATE" |
| 29 | |
| 30 | // these must match the corresponding states in the MediaState enum. |
| 31 | // A path to the volume mount point follows the colon |
| 32 | typedef enum volume_state { |
| 33 | volstate_unknown, |
| 34 | |
| 35 | volstate_nomedia, |
| 36 | #define VOLD_EVT_NOMEDIA "volume_nomedia:" |
| 37 | #define VOLD_ES_PVAL_NOMEDIA "removed" |
| 38 | |
| 39 | volstate_unmounted, |
| 40 | #define VOLD_EVT_UNMOUNTED "volume_unmounted:" |
| 41 | #define VOLD_ES_PVAL_UNMOUNTED "unmounted" |
| 42 | |
| 43 | volstate_checking, |
| 44 | #define VOLD_EVT_CHECKING "volume_checking:" |
| 45 | #define VOLD_ES_PVAL_CHECKING "checking" |
| 46 | |
| 47 | volstate_mounted, |
| 48 | #define VOLD_EVT_MOUNTED "volume_mounted:" |
| 49 | #define VOLD_ES_PVAL_MOUNTED "mounted" |
| 50 | |
| 51 | volstate_mounted_ro, |
| 52 | #define VOLD_EVT_MOUNTED_RO "volume_mounted_ro:" |
| 53 | #define VOLD_ES_PVAL_MOUNTED_RO "mounted_ro" |
| 54 | |
| 55 | volstate_badremoval, |
| 56 | #define VOLD_EVT_BADREMOVAL "volume_badremoval:" |
| 57 | #define VOLD_ES_PVAL_BADREMOVAL "bad_removal" |
| 58 | |
| 59 | volstate_damaged, |
| 60 | #define VOLD_EVT_DAMAGED "volume_damaged:" |
| 61 | #define VOLD_ES_PVAL_DAMAGED "unmountable" |
| 62 | |
| 63 | volstate_nofs, |
| 64 | #define VOLD_EVT_NOFS "volume_nofs:" |
| 65 | #define VOLD_ES_PVAL_NOFS "nofs" |
| 66 | |
| 67 | volstate_ums, |
| 68 | #define VOLD_EVT_UMS "volume_ums:" |
| 69 | #define VOLD_ES_PVAL_UMS "shared" |
| 70 | |
| 71 | volstate_ejecting, |
| 72 | #define VOLD_EVT_EJECTING "volume_ejecting:" |
| 73 | #define VOLD_ES_PVAL_EJECTING "ejecting" |
| 74 | |
| 75 | volstate_formatting, |
| 76 | } volume_state_t; |
| 77 | |
| 78 | struct volume; |
| 79 | |
| 80 | struct volmgr_fstable_entry { |
| 81 | char *name; |
| 82 | int (*identify_fn) (blkdev_t *dev); |
| 83 | int (*check_fn) (blkdev_t *dev); |
| 84 | int (*mount_fn) (blkdev_t *dev, struct volume *vol, boolean safe_mode); |
| 85 | boolean case_sensitive_paths; |
| 86 | }; |
| 87 | |
| 88 | struct volmgr_start_args { |
| 89 | struct volmgr_fstable_entry *fs; |
| 90 | blkdev_t *dev; |
| 91 | }; |
| 92 | |
| 93 | struct volmgr_reaper_args { |
| 94 | void (*cb) (struct volume *, void *); |
| 95 | void *cb_arg; |
| 96 | }; |
| 97 | |
| 98 | #define VOLMGR_MAX_MEDIAPATHS_PER_VOLUME 8 |
| 99 | |
| 100 | typedef struct volume { |
| 101 | char *media_paths[VOLMGR_MAX_MEDIAPATHS_PER_VOLUME]; |
| 102 | |
| 103 | media_type_t media_type; |
| 104 | char *mount_point; |
| 105 | char *ums_path; |
| 106 | struct devmapping *dm; |
| 107 | |
| 108 | pthread_mutex_t lock; |
| 109 | volume_state_t state; |
| 110 | blkdev_t *dev; |
| 111 | pid_t worker_pid; |
| 112 | pthread_t worker_thread; |
| 113 | union { |
| 114 | struct volmgr_start_args start_args; |
| 115 | struct volmgr_reaper_args reaper_args; |
| 116 | } worker_args; |
| 117 | boolean worker_running; |
| 118 | pthread_mutex_t worker_sem; |
| 119 | |
| 120 | struct volmgr_fstable_entry *fs; |
| 121 | |
| 122 | struct volume *next; |
| 123 | } volume_t; |
| 124 | |
| 125 | int volmgr_consider_disk(blkdev_t *dev); |
| 126 | int volmgr_notify_eject(blkdev_t *dev, void (* cb) (blkdev_t *)); |
| 127 | int volmgr_send_states(void); |
| 128 | int volmgr_enable_ums(boolean enable); |
| 129 | int volmgr_stop_volume_by_mountpoint(char *mount_point); |
| 130 | int volmgr_start_volume_by_mountpoint(char *mount_point); |
| 131 | int volmgr_safe_mode(boolean enable); |
| 132 | int volmgr_format_volume(char *mount_point); |
| 133 | int volmgr_set_volume_key(char *mount_point, unsigned char *key); |
| 134 | void KillProcessesWithOpenFiles(const char* mountPoint, boolean sigkill, int *excluded, int num_excluded); |
| 135 | #endif |