- android - 多次调用 OnPrimaryClipChangedListener
- android - 无法更新 RecyclerView 中的 TextView 字段
- android.database.CursorIndexOutOfBoundsException : Index 0 requested, 光标大小为 0
- android - 使用 AppCompat 时,我们是否需要明确指定其 UI 组件(Spinner、EditText)颜色
我想在 Android 中列出 "/proc"
下的文件和目录。作为我的应用进程运行时,很多文件不可读。
如果我将目录列为 shell
用户,我会得到以下输出:
shell@flounder:/ $ whoami
shell
shell@flounder:/ $ /system/bin/toolbox ls -l /proc
dr-xr-xr-x root root 2015-09-12 03:30 1
dr-xr-xr-x root root 2015-09-12 03:31 10
dr-xr-xr-x root root 2015-09-12 03:31 101
dr-xr-xr-x shell shell 2015-09-15 03:24 10196
dr-xr-xr-x root root 2015-09-12 03:31 102
dr-xr-xr-x root root 2015-09-12 03:31 103
dr-xr-xr-x root root 2015-09-12 03:31 104
dr-xr-xr-x u0_a15 u0_a15 2015-09-14 07:37 10451
dr-xr-xr-x root root 2015-09-12 03:31 105
dr-xr-xr-x wifi wifi 2015-09-14 08:53 10570
dr-xr-xr-x root root 2015-09-12 03:31 106
dr-xr-xr-x root root 2015-09-12 03:31 107
dr-xr-xr-x root root 2015-09-12 03:31 108
dr-xr-xr-x root root 2015-09-12 03:31 11
dr-xr-xr-x root root 2015-09-12 03:31 110
dr-xr-xr-x root root 2015-09-12 03:31 111
dr-xr-xr-x root root 2015-09-12 03:31 112
dr-xr-xr-x root root 2015-09-12 03:31 113
dr-xr-xr-x root root 2015-09-12 03:31 114
dr-xr-xr-x root root 2015-09-12 03:31 115
dr-xr-xr-x root root 2015-09-12 03:31 116
dr-xr-xr-x root root 2015-09-12 03:31 117
dr-xr-xr-x root root 2015-09-12 03:31 118
dr-xr-xr-x root root 2015-09-12 03:31 119
dr-xr-xr-x u0_a26 u0_a26 2015-09-12 03:31 1193
dr-xr-xr-x root root 2015-09-12 03:31 12
dr-xr-xr-x root root 2015-09-12 03:31 120
dr-xr-xr-x u0_a57 u0_a57 2015-09-12 03:31 1209
dr-xr-xr-x root root 2015-09-12 03:31 121
dr-xr-xr-x root root 2015-09-12 03:31 122
dr-xr-xr-x nfc nfc 2015-09-12 03:31 1227
dr-xr-xr-x root root 2015-09-12 03:31 123
dr-xr-xr-x radio radio 2015-09-12 03:31 1239
dr-xr-xr-x root root 2015-09-12 03:31 124
dr-xr-xr-x u0_a26 u0_a26 2015-09-12 03:31 1246
dr-xr-xr-x root root 2015-09-12 03:31 125
dr-xr-xr-x root root 2015-09-12 03:31 126
dr-xr-xr-x root root 2015-09-12 03:31 127
dr-xr-xr-x root root 2015-09-12 03:30 128
dr-xr-xr-x root root 2015-09-12 03:31 13
dr-xr-xr-x u0_a26 u0_a26 2015-09-12 03:31 1305
dr-xr-xr-x root root 2015-09-12 03:30 132
dr-xr-xr-x root root 2015-09-12 03:31 134
dr-xr-xr-x u0_a86 u0_a86 2015-09-14 07:16 1343
dr-xr-xr-x root root 2015-09-12 03:31 135
dr-xr-xr-x root root 2015-09-12 03:31 136
dr-xr-xr-x root root 2015-09-12 03:31 137
dr-xr-xr-x root root 2015-09-12 03:31 138
dr-xr-xr-x root root 2015-09-12 03:31 139
dr-xr-xr-x root root 2015-09-12 03:31 14
dr-xr-xr-x root root 2015-09-12 03:31 140
dr-xr-xr-x root root 2015-09-12 03:31 141
dr-xr-xr-x root root 2015-09-12 03:31 142
dr-xr-xr-x root root 2015-09-12 03:31 143
dr-xr-xr-x root root 2015-09-12 03:31 144
dr-xr-xr-x root root 2015-09-12 03:31 145
dr-xr-xr-x root root 2015-09-12 03:31 149
dr-xr-xr-x root root 2015-09-12 03:31 150
dr-xr-xr-x logd logd 2015-09-12 03:30 153
dr-xr-xr-x root root 2015-09-12 03:30 155
dr-xr-xr-x root root 2015-09-12 03:31 16
dr-xr-xr-x root root 2015-09-12 03:31 160
dr-xr-xr-x root root 2015-09-12 03:30 163
dr-xr-xr-x root root 2015-09-12 03:30 164
dr-xr-xr-x system system 2015-09-12 03:30 165
dr-xr-xr-x u0_a9 u0_a9 2015-09-12 03:31 1652
dr-xr-xr-x system graphics 2015-09-12 03:30 166
dr-xr-xr-x root root 2015-09-12 03:31 17
dr-xr-xr-x system system 2015-09-14 05:30 18227
dr-xr-xr-x root root 2015-09-12 03:31 188
dr-xr-xr-x root root 2015-09-12 03:31 192
dr-xr-xr-x root root 2015-09-12 03:31 193
dr-xr-xr-x root root 2015-09-12 03:31 194
dr-xr-xr-x root root 2015-09-12 03:31 195
dr-xr-xr-x root root 2015-09-12 03:31 2
dr-xr-xr-x root root 2015-09-12 03:31 20
dr-xr-xr-x u0_a19 u0_a19 2015-09-14 05:36 20564
dr-xr-xr-x root root 2015-09-12 03:31 207
dr-xr-xr-x u0_a45 u0_a45 2015-09-15 03:00 20763
dr-xr-xr-x root root 2015-09-12 03:31 208
dr-xr-xr-x root root 2015-09-12 03:31 21
dr-xr-xr-x shell shell 2015-09-12 03:31 210
dr-xr-xr-x root root 2015-09-12 03:31 215
dr-xr-xr-x root root 2015-09-12 03:31 216
dr-xr-xr-x root root 2015-09-12 03:31 217
dr-xr-xr-x drm drm 2015-09-12 03:31 218
dr-xr-xr-x media audio 2015-09-12 03:31 219
dr-xr-xr-x root root 2015-09-12 03:31 22
dr-xr-xr-x root root 2015-09-12 03:31 220
dr-xr-xr-x keystore keystore 2015-09-12 03:31 222
dr-xr-xr-x system system 2015-09-12 03:31 223
dr-xr-xr-x root root 2015-09-12 03:31 224
dr-xr-xr-x root root 2015-09-12 03:31 225
dr-xr-xr-x shell shell 2015-09-15 03:15 2258
dr-xr-xr-x system root 2015-09-12 03:31 226
dr-xr-xr-x gps system 2015-09-12 03:31 227
dr-xr-xr-x u0_a67 u0_a67 2015-09-15 03:15 2270
dr-xr-xr-x root root 2015-09-12 03:31 23
dr-xr-xr-x root root 2015-09-12 03:31 24
dr-xr-xr-x root root 2015-09-12 03:31 2428
dr-xr-xr-x root root 2015-09-15 03:05 24353
dr-xr-xr-x root root 2015-09-12 03:31 25
dr-xr-xr-x root root 2015-09-15 03:11 25597
dr-xr-xr-x root root 2015-09-12 03:31 26
dr-xr-xr-x root root 2015-09-15 03:11 26671
dr-xr-xr-x root root 2015-09-12 03:31 27
dr-xr-xr-x u0_a84 u0_a84 2015-09-15 03:15 2738
dr-xr-xr-x root root 2015-09-12 03:31 28
dr-xr-xr-x root root 2015-09-12 03:31 29
dr-xr-xr-x root root 2015-09-15 03:11 29355
dr-xr-xr-x root root 2015-09-15 03:16 2958
dr-xr-xr-x root root 2015-09-12 03:31 3
dr-xr-xr-x root root 2015-09-12 03:31 30
dr-xr-xr-x u0_a5 u0_a5 2015-09-15 03:10 30095
dr-xr-xr-x u0_a18 u0_a18 2015-09-15 03:11 30266
dr-xr-xr-x u0_a40 u0_a40 2015-09-15 03:11 30290
dr-xr-xr-x system system 2015-09-15 03:11 30333
dr-xr-xr-x u0_a37 u0_a37 2015-09-15 03:11 30382
dr-xr-xr-x u0_a77 u0_a77 2015-09-15 03:11 30420
dr-xr-xr-x u0_a61 u0_a61 2015-09-15 03:11 30458
dr-xr-xr-x root root 2015-09-14 09:56 30729
dr-xr-xr-x u0_a4 u0_a4 2015-09-14 11:12 30994
dr-xr-xr-x root root 2015-09-12 03:31 31
dr-xr-xr-x u0_a9 u0_a9 2015-09-14 13:31 31453
dr-xr-xr-x shell shell 2015-09-15 03:12 31844
dr-xr-xr-x root root 2015-09-12 03:31 32
dr-xr-xr-x u0_a6 u0_a6 2015-09-15 01:13 32176
dr-xr-xr-x root root 2015-09-15 02:34 32422
dr-xr-xr-x root root 2015-09-15 03:13 32476
dr-xr-xr-x shell shell 2015-09-15 02:39 32552
dr-xr-xr-x root root 2015-09-12 03:31 33
dr-xr-xr-x root root 2015-09-12 03:31 47
dr-xr-xr-x root root 2015-09-12 03:31 48
dr-xr-xr-x root root 2015-09-12 03:31 49
dr-xr-xr-x root root 2015-09-12 03:31 5
dr-xr-xr-x root root 2015-09-12 03:31 50
dr-xr-xr-x system system 2015-09-12 03:31 590
dr-xr-xr-x root root 2015-09-12 03:31 64
dr-xr-xr-x root root 2015-09-12 03:31 65
dr-xr-xr-x root root 2015-09-12 03:31 66
dr-xr-xr-x media_rw media_rw 2015-09-12 03:31 666
dr-xr-xr-x root root 2015-09-12 03:31 67
dr-xr-xr-x root root 2015-09-12 03:31 68
dr-xr-xr-x root root 2015-09-12 03:31 69
dr-xr-xr-x u0_a24 u0_a24 2015-09-12 03:31 694
dr-xr-xr-x root root 2015-09-12 03:31 7
dr-xr-xr-x root root 2015-09-12 03:31 70
dr-xr-xr-x root root 2015-09-12 03:31 71
dr-xr-xr-x u0_a88 u0_a88 2015-09-14 06:14 7104
dr-xr-xr-x root root 2015-09-12 03:31 72
dr-xr-xr-x u0_a88 u0_a88 2015-09-14 06:15 7217
dr-xr-xr-x root root 2015-09-15 03:21 7221
dr-xr-xr-x root root 2015-09-12 03:31 73
dr-xr-xr-x root root 2015-09-12 03:31 74
dr-xr-xr-x root root 2015-09-15 03:21 7487
dr-xr-xr-x root root 2015-09-12 03:31 75
dr-xr-xr-x root root 2015-09-12 03:31 76
dr-xr-xr-x root root 2015-09-12 03:31 77
dr-xr-xr-x root root 2015-09-12 03:31 78
dr-xr-xr-x root root 2015-09-12 03:31 79
dr-xr-xr-x root root 2015-09-12 03:31 8
dr-xr-xr-x root root 2015-09-12 03:31 81
dr-xr-xr-x root root 2015-09-12 03:31 82
dr-xr-xr-x u0_a14 u0_a14 2015-09-15 02:45 8250
dr-xr-xr-x root root 2015-09-12 03:31 83
dr-xr-xr-x root root 2015-09-12 03:31 84
dr-xr-xr-x root root 2015-09-12 03:31 85
dr-xr-xr-x u0_a53 u0_a53 2015-09-13 11:39 8517
dr-xr-xr-x root root 2015-09-12 03:31 87
dr-xr-xr-x root root 2015-09-12 03:31 88
dr-xr-xr-x root root 2015-09-12 03:31 89
dr-xr-xr-x root root 2015-09-12 03:31 9
dr-xr-xr-x root root 2015-09-12 03:31 90
dr-xr-xr-x u0_a9 u0_a9 2015-09-12 03:31 903
dr-xr-xr-x root root 2015-09-12 03:31 91
dr-xr-xr-x u0_a9 u0_a9 2015-09-13 11:45 9159
dr-xr-xr-x root root 2015-09-12 03:31 93
dr-xr-xr-x u0_a66 u0_a66 2015-09-14 08:52 9356
dr-xr-xr-x root root 2015-09-12 03:31 94
dr-xr-xr-x root root 2015-09-12 03:31 95
dr-xr-xr-x root root 2015-09-12 03:31 97
dr-xr-xr-x root root 2015-09-12 03:31 98
dr-xr-xr-x root root 2015-09-12 03:31 99
dr-xr-xr-x root root 2015-09-15 03:24 asound
dr-xr-xr-x root root 2015-09-15 03:24 bluetooth
-r--r--r-- root root 0 2015-09-15 03:24 buddyinfo
dr-xr-xr-x root root 2015-09-15 03:24 bus
-r--r--r-- root root 0 2015-09-15 03:24 cgroups
-r--r----- root radio 0 2015-09-15 03:24 cmdline
-r--r--r-- root root 0 2015-09-15 03:24 consoles
-r--r--r-- root root 0 2015-09-15 03:24 cpuinfo
-r--r--r-- root root 0 2015-09-15 03:24 crypto
dr-xr-xr-x root root 2015-09-15 03:24 device-tree
-r--r--r-- root root 0 2015-09-15 03:24 devices
-r--r--r-- root root 0 2015-09-15 03:24 diskstats
dr-xr-xr-x root root 2015-09-15 03:24 driver
-r--r--r-- root root 0 2015-09-15 03:24 execdomains
-r--r--r-- root root 0 2015-09-15 03:24 fb
-r--r--r-- root root 0 2015-09-15 03:24 filesystems
dr-xr-xr-x root root 2015-09-15 03:24 fs
-r--r--r-- root root 0 2015-09-15 03:24 interrupts
-r--r--r-- root root 0 2015-09-15 03:24 iomem
-r--r--r-- root root 0 2015-09-15 03:24 ioports
dr-xr-xr-x root root 2015-09-15 03:24 irq
-r--r--r-- root root 0 2015-09-15 03:24 kallsyms
-r--r----- root system 0 2015-09-12 03:30 kmsg
-r-------- root root 0 2015-09-15 03:24 kpagecount
-r-------- root root 0 2015-09-15 03:24 kpageflags
-r--r--r-- root root 0 2015-09-15 03:24 loadavg
-r--r--r-- root root 0 2015-09-15 03:24 locks
-r--r--r-- root root 0 2015-09-15 03:24 meminfo
-r--r--r-- root root 0 2015-09-15 03:24 misc
lrwxrwxrwx root root 2015-09-15 03:24 mounts -> self/mounts
lrwxrwxrwx root root 2015-09-15 03:24 net -> self/net
-r--r--r-- root root 0 2015-09-15 03:24 pagetypeinfo
-r--r--r-- root root 0 2015-09-15 03:24 partitions
dr-xr-xr-x root root 2015-09-15 03:24 quadd
-r--r--r-- root root 0 2015-09-15 03:24 sched_debug
-r--r--r-- root root 0 2015-09-15 03:24 schedstat
dr-xr-xr-x root root 2015-09-15 03:24 scsi
lrwxrwxrwx root root 1969-12-31 16:00 self -> 10196
-r--r----- root log 0 2015-09-15 03:24 slabinfo
-r--r--r-- root root 0 2015-09-15 03:24 softirqs
-r--r--r-- root root 0 2015-09-15 03:24 stat
-r--r--r-- root root 0 2015-09-15 03:24 swaps
dr-xr-xr-x root root 2015-09-14 06:13 sys
lstat '/proc/sysrq-trigger' failed: Permission denied
dr-xr-xr-x root root 2015-09-15 03:24 sysvipc
-r--r--r-- root root 0 2015-09-15 03:24 timer_list
-rw-r--r-- root root 0 2015-09-15 03:24 timer_stats
dr-xr-xr-x root root 2015-09-15 03:24 tty
dr-xr-xr-x root root 2015-09-15 03:24 uid_cputime
dr-xr-xr-x root root 2015-09-15 03:24 uid_stat
-r--r--r-- root root 0 2015-09-15 03:24 uptime
-r--r--r-- root root 0 2015-09-15 03:24 version
-r--r----- root log 0 2015-09-15 03:24 vmallocinfo
-r--r--r-- root root 0 2015-09-15 03:24 vmstat
-r--r--r-- root root 0 2015-09-15 03:24 zoneinfo
如果我将目录列为我的应用进程(使用 run-as [PACKAGE_NAME]
):
shell@flounder:/ $ run-as my.packagename
shell@flounder:/data/data/my.packagename $ whoami
u0_a84
shell@flounder:/data/data/my.packagename $ /system/bin/toolbox ls -l /proc
lstat '/proc/1' failed: Permission denied
lstat '/proc/10' failed: Permission denied
lstat '/proc/101' failed: Permission denied
lstat '/proc/102' failed: Permission denied
lstat '/proc/103' failed: Permission denied
lstat '/proc/104' failed: Permission denied
dr-xr-xr-x u0_a15 u0_a15 2015-09-14 07:37 10451
lstat '/proc/105' failed: Permission denied
lstat '/proc/10570' failed: Permission denied
lstat '/proc/106' failed: Permission denied
lstat '/proc/107' failed: Permission denied
lstat '/proc/108' failed: Permission denied
lstat '/proc/11' failed: Permission denied
lstat '/proc/110' failed: Permission denied
lstat '/proc/111' failed: Permission denied
lstat '/proc/112' failed: Permission denied
lstat '/proc/113' failed: Permission denied
lstat '/proc/114' failed: Permission denied
lstat '/proc/115' failed: Permission denied
dr-xr-xr-x u0_a84 u0_a84 2015-09-15 03:26 11513
lstat '/proc/116' failed: Permission denied
lstat '/proc/117' failed: Permission denied
lstat '/proc/11719' failed: Permission denied
lstat '/proc/118' failed: Permission denied
lstat '/proc/119' failed: Permission denied
dr-xr-xr-x u0_a26 u0_a26 2015-09-12 03:31 1193
lstat '/proc/12' failed: Permission denied
lstat '/proc/120' failed: Permission denied
dr-xr-xr-x u0_a57 u0_a57 2015-09-12 03:31 1209
lstat '/proc/121' failed: Permission denied
lstat '/proc/122' failed: Permission denied
lstat '/proc/1227' failed: Permission denied
lstat '/proc/123' failed: Permission denied
lstat '/proc/1239' failed: Permission denied
lstat '/proc/124' failed: Permission denied
dr-xr-xr-x u0_a26 u0_a26 2015-09-12 03:31 1246
lstat '/proc/125' failed: Permission denied
lstat '/proc/126' failed: Permission denied
lstat '/proc/12696' failed: Permission denied
lstat '/proc/127' failed: Permission denied
lstat '/proc/128' failed: Permission denied
lstat '/proc/13' failed: Permission denied
dr-xr-xr-x u0_a26 u0_a26 2015-09-12 03:31 1305
lstat '/proc/132' failed: Permission denied
lstat '/proc/134' failed: Permission denied
dr-xr-xr-x u0_a86 u0_a86 2015-09-14 07:16 1343
lstat '/proc/135' failed: Permission denied
lstat '/proc/136' failed: Permission denied
lstat '/proc/137' failed: Permission denied
lstat '/proc/138' failed: Permission denied
lstat '/proc/139' failed: Permission denied
lstat '/proc/14' failed: Permission denied
lstat '/proc/140' failed: Permission denied
dr-xr-xr-x u0_a84 u0_a84 2015-09-15 03:29 14005
lstat '/proc/141' failed: Permission denied
lstat '/proc/142' failed: Permission denied
lstat '/proc/143' failed: Permission denied
lstat '/proc/144' failed: Permission denied
lstat '/proc/145' failed: Permission denied
lstat '/proc/149' failed: Permission denied
lstat '/proc/150' failed: Permission denied
lstat '/proc/153' failed: Permission denied
lstat '/proc/155' failed: Permission denied
lstat '/proc/16' failed: Permission denied
lstat '/proc/160' failed: Permission denied
lstat '/proc/163' failed: Permission denied
lstat '/proc/164' failed: Permission denied
lstat '/proc/165' failed: Permission denied
dr-xr-xr-x u0_a9 u0_a9 2015-09-12 03:31 1652
lstat '/proc/166' failed: Permission denied
lstat '/proc/17' failed: Permission denied
lstat '/proc/18227' failed: Permission denied
lstat '/proc/188' failed: Permission denied
lstat '/proc/192' failed: Permission denied
lstat '/proc/193' failed: Permission denied
lstat '/proc/194' failed: Permission denied
lstat '/proc/195' failed: Permission denied
lstat '/proc/2' failed: Permission denied
lstat '/proc/20' failed: Permission denied
dr-xr-xr-x u0_a19 u0_a19 2015-09-14 05:36 20564
lstat '/proc/207' failed: Permission denied
dr-xr-xr-x u0_a45 u0_a45 2015-09-15 03:00 20763
lstat '/proc/208' failed: Permission denied
lstat '/proc/21' failed: Permission denied
lstat '/proc/210' failed: Permission denied
lstat '/proc/215' failed: Permission denied
lstat '/proc/216' failed: Permission denied
lstat '/proc/217' failed: Permission denied
lstat '/proc/218' failed: Permission denied
lstat '/proc/219' failed: Permission denied
lstat '/proc/22' failed: Permission denied
lstat '/proc/220' failed: Permission denied
lstat '/proc/222' failed: Permission denied
lstat '/proc/223' failed: Permission denied
lstat '/proc/224' failed: Permission denied
lstat '/proc/225' failed: Permission denied
lstat '/proc/2258' failed: Permission denied
lstat '/proc/226' failed: Permission denied
lstat '/proc/227' failed: Permission denied
dr-xr-xr-x u0_a67 u0_a67 2015-09-15 03:15 2270
lstat '/proc/23' failed: Permission denied
lstat '/proc/24' failed: Permission denied
lstat '/proc/2428' failed: Permission denied
lstat '/proc/24353' failed: Permission denied
lstat '/proc/25' failed: Permission denied
lstat '/proc/25597' failed: Permission denied
lstat '/proc/26' failed: Permission denied
lstat '/proc/26671' failed: Permission denied
lstat '/proc/27' failed: Permission denied
dr-xr-xr-x u0_a84 u0_a84 2015-09-15 03:15 2738
lstat '/proc/28' failed: Permission denied
lstat '/proc/29' failed: Permission denied
lstat '/proc/3' failed: Permission denied
lstat '/proc/30' failed: Permission denied
lstat '/proc/30095' failed: Permission denied
dr-xr-xr-x u0_a18 u0_a18 2015-09-15 03:11 30266
dr-xr-xr-x u0_a40 u0_a40 2015-09-15 03:11 30290
lstat '/proc/30333' failed: Permission denied
dr-xr-xr-x u0_a37 u0_a37 2015-09-15 03:11 30382
dr-xr-xr-x u0_a77 u0_a77 2015-09-15 03:11 30420
dr-xr-xr-x u0_a61 u0_a61 2015-09-15 03:11 30458
lstat '/proc/30729' failed: Permission denied
dr-xr-xr-x u0_a4 u0_a4 2015-09-14 11:12 30994
lstat '/proc/31' failed: Permission denied
dr-xr-xr-x u0_a9 u0_a9 2015-09-14 13:31 31453
lstat '/proc/31844' failed: Permission denied
lstat '/proc/32' failed: Permission denied
dr-xr-xr-x u0_a6 u0_a6 2015-09-15 01:13 32176
lstat '/proc/32422' failed: Permission denied
lstat '/proc/32476' failed: Permission denied
lstat '/proc/32552' failed: Permission denied
lstat '/proc/33' failed: Permission denied
lstat '/proc/47' failed: Permission denied
lstat '/proc/48' failed: Permission denied
lstat '/proc/49' failed: Permission denied
lstat '/proc/5' failed: Permission denied
lstat '/proc/50' failed: Permission denied
lstat '/proc/590' failed: Permission denied
lstat '/proc/64' failed: Permission denied
lstat '/proc/65' failed: Permission denied
lstat '/proc/66' failed: Permission denied
lstat '/proc/666' failed: Permission denied
lstat '/proc/67' failed: Permission denied
lstat '/proc/68' failed: Permission denied
lstat '/proc/69' failed: Permission denied
lstat '/proc/694' failed: Permission denied
lstat '/proc/7' failed: Permission denied
lstat '/proc/70' failed: Permission denied
lstat '/proc/71' failed: Permission denied
dr-xr-xr-x u0_a88 u0_a88 2015-09-14 06:14 7104
lstat '/proc/72' failed: Permission denied
dr-xr-xr-x u0_a88 u0_a88 2015-09-14 06:15 7217
lstat '/proc/7221' failed: Permission denied
lstat '/proc/73' failed: Permission denied
lstat '/proc/74' failed: Permission denied
lstat '/proc/7487' failed: Permission denied
lstat '/proc/75' failed: Permission denied
lstat '/proc/76' failed: Permission denied
lstat '/proc/77' failed: Permission denied
lstat '/proc/78' failed: Permission denied
lstat '/proc/79' failed: Permission denied
lstat '/proc/8' failed: Permission denied
lstat '/proc/81' failed: Permission denied
lstat '/proc/82' failed: Permission denied
dr-xr-xr-x u0_a14 u0_a14 2015-09-15 02:45 8250
lstat '/proc/83' failed: Permission denied
lstat '/proc/84' failed: Permission denied
lstat '/proc/85' failed: Permission denied
dr-xr-xr-x u0_a53 u0_a53 2015-09-13 11:39 8517
lstat '/proc/87' failed: Permission denied
lstat '/proc/88' failed: Permission denied
lstat '/proc/89' failed: Permission denied
lstat '/proc/9' failed: Permission denied
lstat '/proc/90' failed: Permission denied
dr-xr-xr-x u0_a9 u0_a9 2015-09-12 03:31 903
lstat '/proc/91' failed: Permission denied
dr-xr-xr-x u0_a9 u0_a9 2015-09-13 11:45 9159
lstat '/proc/93' failed: Permission denied
dr-xr-xr-x u0_a66 u0_a66 2015-09-14 08:52 9356
lstat '/proc/94' failed: Permission denied
lstat '/proc/95' failed: Permission denied
lstat '/proc/97' failed: Permission denied
lstat '/proc/98' failed: Permission denied
lstat '/proc/99' failed: Permission denied
dr-xr-xr-x root root 2015-09-15 03:29 asound
dr-xr-xr-x root root 2015-09-15 03:29 bluetooth
-r--r--r-- root root 0 2015-09-15 03:29 buddyinfo
dr-xr-xr-x root root 2015-09-15 03:29 bus
-r--r--r-- root root 0 2015-09-15 03:29 cgroups
-r--r----- root radio 0 2015-09-15 03:29 cmdline
-r--r--r-- root root 0 2015-09-15 03:29 consoles
-r--r--r-- root root 0 2015-09-15 03:29 cpuinfo
-r--r--r-- root root 0 2015-09-15 03:29 crypto
dr-xr-xr-x root root 2015-09-15 03:29 device-tree
-r--r--r-- root root 0 2015-09-15 03:29 devices
-r--r--r-- root root 0 2015-09-15 03:29 diskstats
dr-xr-xr-x root root 2015-09-15 03:29 driver
-r--r--r-- root root 0 2015-09-15 03:29 execdomains
-r--r--r-- root root 0 2015-09-15 03:29 fb
-r--r--r-- root root 0 2015-09-15 03:29 filesystems
dr-xr-xr-x root root 2015-09-15 03:29 fs
-r--r--r-- root root 0 2015-09-15 03:29 interrupts
-r--r--r-- root root 0 2015-09-15 03:29 iomem
-r--r--r-- root root 0 2015-09-15 03:29 ioports
dr-xr-xr-x root root 2015-09-15 03:29 irq
-r--r--r-- root root 0 2015-09-15 03:29 kallsyms
-r--r----- root system 0 2015-09-12 03:30 kmsg
-r-------- root root 0 2015-09-15 03:29 kpagecount
-r-------- root root 0 2015-09-15 03:29 kpageflags
-r--r--r-- root root 0 2015-09-15 03:29 loadavg
-r--r--r-- root root 0 2015-09-15 03:29 locks
-r--r--r-- root root 0 2015-09-15 03:29 meminfo
-r--r--r-- root root 0 2015-09-15 03:29 misc
lrwxrwxrwx root root 2015-09-15 03:29 mounts -> self/mounts
lrwxrwxrwx root root 2015-09-15 03:29 net -> self/net
-r--r--r-- root root 0 2015-09-15 03:29 pagetypeinfo
-r--r--r-- root root 0 2015-09-15 03:29 partitions
dr-xr-xr-x root root 2015-09-15 03:29 quadd
-r--r--r-- root root 0 2015-09-15 03:29 sched_debug
-r--r--r-- root root 0 2015-09-15 03:29 schedstat
dr-xr-xr-x root root 2015-09-15 03:29 scsi
lrwxrwxrwx root root 1969-12-31 16:00 self -> 14005
-r--r----- root log 0 2015-09-15 03:29 slabinfo
-r--r--r-- root root 0 2015-09-15 03:29 softirqs
-r--r--r-- root root 0 2015-09-15 03:29 stat
-r--r--r-- root root 0 2015-09-15 03:29 swaps
dr-xr-xr-x root root 2015-09-14 06:13 sys
lstat '/proc/sysrq-trigger' failed: Permission denied
dr-xr-xr-x root root 2015-09-15 03:29 sysvipc
-r--r--r-- root root 0 2015-09-15 03:29 timer_list
-rw-r--r-- root root 0 2015-09-15 03:29 timer_stats
dr-xr-xr-x root root 2015-09-15 03:29 tty
dr-xr-xr-x root root 2015-09-15 03:29 uid_cputime
dr-xr-xr-x root root 2015-09-15 03:29 uid_stat
-r--r--r-- root root 0 2015-09-15 03:29 uptime
-r--r--r-- root root 0 2015-09-15 03:29 version
-r--r----- root log 0 2015-09-15 03:29 vmallocinfo
-r--r--r-- root root 0 2015-09-15 03:29 vmstat
-r--r--r-- root root 0 2015-09-15 03:29 zoneinfo
显然,我收到“权限被拒绝”错误的文件也无法使用 new java.io.File("/proc").listFiles();
读取。
为什么我的应用进程不能读取这些目录?权限授予“其他”用户读取权限(“dr-xr-xr-x”)。
最佳答案
Android 5 及更高版本使用 SELinux,它使用两种形式的访问控制。传统 Linux 使用自主访问控制列表。 SE 组件还执行强制访问控制列表。前者默认允许,后者默认拒绝。
只有在两组权限都允许的情况下,您或进程才能访问对象。访问由 SE 上下文决定。 Shell 和应用程序上下文具有不同的权限,不幸的是,没有任何已知的方法来提供应用程序 Shell 上下文。
您可以使用以下方式查看安全上下文:
ls -Z
我没有要测试的 Marshmallow 设备,但是可以为您的应用程序提供必要上下文的是获取 usagestatsmanager 权限。用户必须启用它的安全设置,我被告知三星设备没有必要的菜单。请记住,在黑暗中拍摄。
如果你想试试看这个问题:How to check if "android.permission.PACKAGE_USAGE_STATS" permission is given?
此页面可能会为您提供有关权限的更多信息:https://su.chainfire.eu/#selinux
关于Android 6.0上的Android文件权限,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32584063/
关闭。这个问题是off-topic .它目前不接受答案。 想改进这个问题吗? Update the question所以它是on-topic用于堆栈溢出。 关闭 10 年前。 Improve thi
Android 权限(您在 list 中请求并在安装时显示的权限)是否与 root 用户在 root 手机上获得的 linux 权限相同? 更确切地说:如果我的手机上有 root 权限并且我有一个可以
我经常读到 VIEW 的一个目的是安全性:允许一些用户访问基础表,而其他用户只允许访问派生 View 。考虑到这一点,我设计了几个向外部用户提供受限数据集的 View 。 一切都很好,但在实践中这是行
在 Facebook API v2.3 中,“user_posts”听起来像是“user_status”的超集。是这样吗?如果我已经有“user_posts”,为什么还需要“user_status”?
在为 BLUETOOTH_CONNECT 请求运行时权限后,android 12 崩溃了,我在 Samsung Android 12 设备中遇到了这个问题。在其他低于 Android 12 的设备上运
请理解这个问题可能有点头晕,因为这是我第一次提问。另外,请理解语法可能很奇怪,因为我不擅长英语并使用翻译。 我是一个在 Android 工作室中使用 java 制作应用程序的人。 尝试使用蓝牙时出现连
我刚刚将我的 Magento 商店从 cPanel 移动到 DirectAdmin (Centos)。 我的问题现在是权限。以前在 cPanel 上,所有文件夹都设置为 755 和文件 644。这很好
我希望在我的 Django 项目中获得更细粒度的权限,但无法决定使用哪个应用程序。 我所拥有的是这样的: class Item(models.Model): name = models.Cha
关闭。这个问题不满足Stack Overflow guidelines .它目前不接受答案。 想改善这个问题吗?更新问题,使其成为 on-topic对于堆栈溢出。 6年前关闭。 Improve thi
我们已经设置了一个 Github 应用程序,以便它使用 Github API 自动为另一个个人 Github 用户创建一个存储库。现在我们遇到了一个问题,不是每个人都想让我们完全读取他们所有的私有(p
假设我有一个网站想要访问 Facebook 的用户帐户信息。通常,用户会获得网站要求的所有权限,并且可以整体上允许或拒绝这些权限。 是否可以让用户选择(例如,通过授权屏幕上每个权限的复选框)他想授予网
平台下载地址:https://gitee.com/alwaysinsist/edp 权限介绍 权限实际上就是谁有权使用或是访问什么,这里的“谁”可以视作"授权对象",&qu
playstore 给我发这个消息 We've detected that your app contains the requestLegacyExternalStorage flag in the
我可以在没有 sudo 的情况下运行 docker,但有时它会再次请求权限,我无法在 VS 代码中附加容器 Got permission denied while trying to connect
我正在尝试在 Ubuntu 中的可执行文件上运行 gdb。但是,当我尝试在 gdb 中运行 run 时,出现以下错误。 /vagrant/unit_test: cannot execute: Perm
我的应用程序工作了一年,然后对 instagram 的 API 调用停止返回任何数据。 我使用以下 instagram 端点: https://api.instagram.com/v1/media/s
我使用 TFS 2012 并希望为 TFS 用户组设置以下权限。 允许创建新问题项。 拒绝创建新的任务项。 拒绝更改他的任务项,只能更改提醒时间、描述和状态。并且不能更改分配的用户、优先级和迭代。 我
我有一个谷歌计算引擎实例,我使用与我的 glcoud 帐户关联的 SSH key 通过 SFTP 连接到该实例。但是,我无法将任何文件上传到/var/www 目录,尽管我可以读取目录列表。/var/w
关闭。这个问题不符合Stack Overflow guidelines .它目前不接受答案。 我们不允许在 Stack Overflow 上提出有关通用计算硬件和软件的问题。您可以编辑问题,使其成为
我不确定如何正确处理以下情况: 我的程序通过安装程序安装 我在应用程序文件夹中创建SQLite数据库(程序启动时) 在某些配置中,我收到“ Attemt写入只读数据库”错误。这是权限问题,现在我通过将
我是一名优秀的程序员,十分优秀!