Android 6.0上的Android文件权限_app

概述我想在Android中的“/proc”下列出文件和目录.作为我的应用程序进程运行时,许多文件不可读.如果将目录作为外壳程序用户列出,则会得到以下输出：shell@flounder:/$whoamishellshell@flounder:/$/system/binoolboxls-l/procdr-xr-xr-xrootroot2015

我想在Android中的“ / proc”下列出文件和目录.作为我的应用程序进程运行时,许多文件不可读.

如果将目录作为外壳程序用户列出,则会得到以下输出：

shell@flounder:/ $whoamishellshell@flounder:/ $/system/bin/toolBox ls -l /procdr-xr-xr-x root     root              2015-09-12 03:30 1dr-xr-xr-x root     root              2015-09-12 03:31 10dr-xr-xr-x root     root              2015-09-12 03:31 101dr-xr-xr-x shell    shell             2015-09-15 03:24 10196dr-xr-xr-x root     root              2015-09-12 03:31 102dr-xr-xr-x root     root              2015-09-12 03:31 103dr-xr-xr-x root     root              2015-09-12 03:31 104dr-xr-xr-x u0_a15   u0_a15            2015-09-14 07:37 10451dr-xr-xr-x root     root              2015-09-12 03:31 105dr-xr-xr-x wifi     wifi              2015-09-14 08:53 10570dr-xr-xr-x root     root              2015-09-12 03:31 106dr-xr-xr-x root     root              2015-09-12 03:31 107dr-xr-xr-x root     root              2015-09-12 03:31 108dr-xr-xr-x root     root              2015-09-12 03:31 11dr-xr-xr-x root     root              2015-09-12 03:31 110dr-xr-xr-x root     root              2015-09-12 03:31 111dr-xr-xr-x root     root              2015-09-12 03:31 112dr-xr-xr-x root     root              2015-09-12 03:31 113dr-xr-xr-x root     root              2015-09-12 03:31 114dr-xr-xr-x root     root              2015-09-12 03:31 115dr-xr-xr-x root     root              2015-09-12 03:31 116dr-xr-xr-x root     root              2015-09-12 03:31 117dr-xr-xr-x root     root              2015-09-12 03:31 118dr-xr-xr-x root     root              2015-09-12 03:31 119dr-xr-xr-x u0_a26   u0_a26            2015-09-12 03:31 1193dr-xr-xr-x root     root              2015-09-12 03:31 12dr-xr-xr-x root     root              2015-09-12 03:31 120dr-xr-xr-x u0_a57   u0_a57            2015-09-12 03:31 1209dr-xr-xr-x root     root              2015-09-12 03:31 121dr-xr-xr-x root     root              2015-09-12 03:31 122dr-xr-xr-x nfc      nfc               2015-09-12 03:31 1227dr-xr-xr-x root     root              2015-09-12 03:31 123dr-xr-xr-x radio    radio             2015-09-12 03:31 1239dr-xr-xr-x root     root              2015-09-12 03:31 124dr-xr-xr-x u0_a26   u0_a26            2015-09-12 03:31 1246dr-xr-xr-x root     root              2015-09-12 03:31 125dr-xr-xr-x root     root              2015-09-12 03:31 126dr-xr-xr-x root     root              2015-09-12 03:31 127dr-xr-xr-x root     root              2015-09-12 03:30 128dr-xr-xr-x root     root              2015-09-12 03:31 13dr-xr-xr-x u0_a26   u0_a26            2015-09-12 03:31 1305dr-xr-xr-x root     root              2015-09-12 03:30 132dr-xr-xr-x root     root              2015-09-12 03:31 134dr-xr-xr-x u0_a86   u0_a86            2015-09-14 07:16 1343dr-xr-xr-x root     root              2015-09-12 03:31 135dr-xr-xr-x root     root              2015-09-12 03:31 136dr-xr-xr-x root     root              2015-09-12 03:31 137dr-xr-xr-x root     root              2015-09-12 03:31 138dr-xr-xr-x root     root              2015-09-12 03:31 139dr-xr-xr-x root     root              2015-09-12 03:31 14dr-xr-xr-x root     root              2015-09-12 03:31 140dr-xr-xr-x root     root              2015-09-12 03:31 141dr-xr-xr-x root     root              2015-09-12 03:31 142dr-xr-xr-x root     root              2015-09-12 03:31 143dr-xr-xr-x root     root              2015-09-12 03:31 144dr-xr-xr-x root     root              2015-09-12 03:31 145dr-xr-xr-x root     root              2015-09-12 03:31 149dr-xr-xr-x root     root              2015-09-12 03:31 150dr-xr-xr-x logd     logd              2015-09-12 03:30 153dr-xr-xr-x root     root              2015-09-12 03:30 155dr-xr-xr-x root     root              2015-09-12 03:31 16dr-xr-xr-x root     root              2015-09-12 03:31 160dr-xr-xr-x root     root              2015-09-12 03:30 163dr-xr-xr-x root     root              2015-09-12 03:30 164dr-xr-xr-x system   system            2015-09-12 03:30 165dr-xr-xr-x u0_a9    u0_a9             2015-09-12 03:31 1652dr-xr-xr-x system   graphics          2015-09-12 03:30 166dr-xr-xr-x root     root              2015-09-12 03:31 17dr-xr-xr-x system   system            2015-09-14 05:30 18227dr-xr-xr-x root     root              2015-09-12 03:31 188dr-xr-xr-x root     root              2015-09-12 03:31 192dr-xr-xr-x root     root              2015-09-12 03:31 193dr-xr-xr-x root     root              2015-09-12 03:31 194dr-xr-xr-x root     root              2015-09-12 03:31 195dr-xr-xr-x root     root              2015-09-12 03:31 2dr-xr-xr-x root     root              2015-09-12 03:31 20dr-xr-xr-x u0_a19   u0_a19            2015-09-14 05:36 20564dr-xr-xr-x root     root              2015-09-12 03:31 207dr-xr-xr-x u0_a45   u0_a45            2015-09-15 03:00 20763dr-xr-xr-x root     root              2015-09-12 03:31 208dr-xr-xr-x root     root              2015-09-12 03:31 21dr-xr-xr-x shell    shell             2015-09-12 03:31 210dr-xr-xr-x root     root              2015-09-12 03:31 215dr-xr-xr-x root     root              2015-09-12 03:31 216dr-xr-xr-x root     root              2015-09-12 03:31 217dr-xr-xr-x drm      drm               2015-09-12 03:31 218dr-xr-xr-x media    audio             2015-09-12 03:31 219dr-xr-xr-x root     root              2015-09-12 03:31 22dr-xr-xr-x root     root              2015-09-12 03:31 220dr-xr-xr-x keystore keystore          2015-09-12 03:31 222dr-xr-xr-x system   system            2015-09-12 03:31 223dr-xr-xr-x root     root              2015-09-12 03:31 224dr-xr-xr-x root     root              2015-09-12 03:31 225dr-xr-xr-x shell    shell             2015-09-15 03:15 2258dr-xr-xr-x system   root              2015-09-12 03:31 226dr-xr-xr-x gps      system            2015-09-12 03:31 227dr-xr-xr-x u0_a67   u0_a67            2015-09-15 03:15 2270dr-xr-xr-x root     root              2015-09-12 03:31 23dr-xr-xr-x root     root              2015-09-12 03:31 24dr-xr-xr-x root     root              2015-09-12 03:31 2428dr-xr-xr-x root     root              2015-09-15 03:05 24353dr-xr-xr-x root     root              2015-09-12 03:31 25dr-xr-xr-x root     root              2015-09-15 03:11 25597dr-xr-xr-x root     root              2015-09-12 03:31 26dr-xr-xr-x root     root              2015-09-15 03:11 26671dr-xr-xr-x root     root              2015-09-12 03:31 27dr-xr-xr-x u0_a84   u0_a84            2015-09-15 03:15 2738dr-xr-xr-x root     root              2015-09-12 03:31 28dr-xr-xr-x root     root              2015-09-12 03:31 29dr-xr-xr-x root     root              2015-09-15 03:11 29355dr-xr-xr-x root     root              2015-09-15 03:16 2958dr-xr-xr-x root     root              2015-09-12 03:31 3dr-xr-xr-x root     root              2015-09-12 03:31 30dr-xr-xr-x u0_a5    u0_a5             2015-09-15 03:10 30095dr-xr-xr-x u0_a18   u0_a18            2015-09-15 03:11 30266dr-xr-xr-x u0_a40   u0_a40            2015-09-15 03:11 30290dr-xr-xr-x system   system            2015-09-15 03:11 30333dr-xr-xr-x u0_a37   u0_a37            2015-09-15 03:11 30382dr-xr-xr-x u0_a77   u0_a77            2015-09-15 03:11 30420dr-xr-xr-x u0_a61   u0_a61            2015-09-15 03:11 30458dr-xr-xr-x root     root              2015-09-14 09:56 30729dr-xr-xr-x u0_a4    u0_a4             2015-09-14 11:12 30994dr-xr-xr-x root     root              2015-09-12 03:31 31dr-xr-xr-x u0_a9    u0_a9             2015-09-14 13:31 31453dr-xr-xr-x shell    shell             2015-09-15 03:12 31844dr-xr-xr-x root     root              2015-09-12 03:31 32dr-xr-xr-x u0_a6    u0_a6             2015-09-15 01:13 32176dr-xr-xr-x root     root              2015-09-15 02:34 32422dr-xr-xr-x root     root              2015-09-15 03:13 32476dr-xr-xr-x shell    shell             2015-09-15 02:39 32552dr-xr-xr-x root     root              2015-09-12 03:31 33dr-xr-xr-x root     root              2015-09-12 03:31 47dr-xr-xr-x root     root              2015-09-12 03:31 48dr-xr-xr-x root     root              2015-09-12 03:31 49dr-xr-xr-x root     root              2015-09-12 03:31 5dr-xr-xr-x root     root              2015-09-12 03:31 50dr-xr-xr-x system   system            2015-09-12 03:31 590dr-xr-xr-x root     root              2015-09-12 03:31 64dr-xr-xr-x root     root              2015-09-12 03:31 65dr-xr-xr-x root     root              2015-09-12 03:31 66dr-xr-xr-x media_rw media_rw          2015-09-12 03:31 666dr-xr-xr-x root     root              2015-09-12 03:31 67dr-xr-xr-x root     root              2015-09-12 03:31 68dr-xr-xr-x root     root              2015-09-12 03:31 69dr-xr-xr-x u0_a24   u0_a24            2015-09-12 03:31 694dr-xr-xr-x root     root              2015-09-12 03:31 7dr-xr-xr-x root     root              2015-09-12 03:31 70dr-xr-xr-x root     root              2015-09-12 03:31 71dr-xr-xr-x u0_a88   u0_a88            2015-09-14 06:14 7104dr-xr-xr-x root     root              2015-09-12 03:31 72dr-xr-xr-x u0_a88   u0_a88            2015-09-14 06:15 7217dr-xr-xr-x root     root              2015-09-15 03:21 7221dr-xr-xr-x root     root              2015-09-12 03:31 73dr-xr-xr-x root     root              2015-09-12 03:31 74dr-xr-xr-x root     root              2015-09-15 03:21 7487dr-xr-xr-x root     root              2015-09-12 03:31 75dr-xr-xr-x root     root              2015-09-12 03:31 76dr-xr-xr-x root     root              2015-09-12 03:31 77dr-xr-xr-x root     root              2015-09-12 03:31 78dr-xr-xr-x root     root              2015-09-12 03:31 79dr-xr-xr-x root     root              2015-09-12 03:31 8dr-xr-xr-x root     root              2015-09-12 03:31 81dr-xr-xr-x root     root              2015-09-12 03:31 82dr-xr-xr-x u0_a14   u0_a14            2015-09-15 02:45 8250dr-xr-xr-x root     root              2015-09-12 03:31 83dr-xr-xr-x root     root              2015-09-12 03:31 84dr-xr-xr-x root     root              2015-09-12 03:31 85dr-xr-xr-x u0_a53   u0_a53            2015-09-13 11:39 8517dr-xr-xr-x root     root              2015-09-12 03:31 87dr-xr-xr-x root     root              2015-09-12 03:31 88dr-xr-xr-x root     root              2015-09-12 03:31 89dr-xr-xr-x root     root              2015-09-12 03:31 9dr-xr-xr-x root     root              2015-09-12 03:31 90dr-xr-xr-x u0_a9    u0_a9             2015-09-12 03:31 903dr-xr-xr-x root     root              2015-09-12 03:31 91dr-xr-xr-x u0_a9    u0_a9             2015-09-13 11:45 9159dr-xr-xr-x root     root              2015-09-12 03:31 93dr-xr-xr-x u0_a66   u0_a66            2015-09-14 08:52 9356dr-xr-xr-x root     root              2015-09-12 03:31 94dr-xr-xr-x root     root              2015-09-12 03:31 95dr-xr-xr-x root     root              2015-09-12 03:31 97dr-xr-xr-x root     root              2015-09-12 03:31 98dr-xr-xr-x root     root              2015-09-12 03:31 99dr-xr-xr-x root     root              2015-09-15 03:24 asounddr-xr-xr-x root     root              2015-09-15 03:24 bluetooth-r--r--r-- root     root            0 2015-09-15 03:24 buddyinfodr-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 cryptodr-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 diskstatsdr-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 filesystemsdr-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 ioportsdr-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 misclrwxrwxrwx root     root              2015-09-15 03:24 mounts -> self/mountslrwxrwxrwx 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 partitionsdr-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 schedstatdr-xr-xr-x root     root              2015-09-15 03:24 scsilrwxrwxrwx 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 swapsdr-xr-xr-x root     root              2015-09-14 06:13 syslstat '/proc/sysrq-trigger' Failed: Permission denIEddr-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_statsdr-xr-xr-x root     root              2015-09-15 03:24 ttydr-xr-xr-x root     root              2015-09-15 03:24 uID_cputimedr-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

如果我将目录列出为我的应用程序进程(使用运行方式为[PACKAGE_name])：

shell@flounder:/ $run-as my.packagenameshell@flounder:/data/data/my.packagename $whoamiu0_a84shell@flounder:/data/data/my.packagename $/system/bin/toolBox ls -l /proclstat '/proc/1' Failed: Permission denIEdlstat '/proc/10' Failed: Permission denIEdlstat '/proc/101' Failed: Permission denIEdlstat '/proc/102' Failed: Permission denIEdlstat '/proc/103' Failed: Permission denIEdlstat '/proc/104' Failed: Permission denIEddr-xr-xr-x u0_a15   u0_a15            2015-09-14 07:37 10451lstat '/proc/105' Failed: Permission denIEdlstat '/proc/10570' Failed: Permission denIEdlstat '/proc/106' Failed: Permission denIEdlstat '/proc/107' Failed: Permission denIEdlstat '/proc/108' Failed: Permission denIEdlstat '/proc/11' Failed: Permission denIEdlstat '/proc/110' Failed: Permission denIEdlstat '/proc/111' Failed: Permission denIEdlstat '/proc/112' Failed: Permission denIEdlstat '/proc/113' Failed: Permission denIEdlstat '/proc/114' Failed: Permission denIEdlstat '/proc/115' Failed: Permission denIEddr-xr-xr-x u0_a84   u0_a84            2015-09-15 03:26 11513lstat '/proc/116' Failed: Permission denIEdlstat '/proc/117' Failed: Permission denIEdlstat '/proc/11719' Failed: Permission denIEdlstat '/proc/118' Failed: Permission denIEdlstat '/proc/119' Failed: Permission denIEddr-xr-xr-x u0_a26   u0_a26            2015-09-12 03:31 1193lstat '/proc/12' Failed: Permission denIEdlstat '/proc/120' Failed: Permission denIEddr-xr-xr-x u0_a57   u0_a57            2015-09-12 03:31 1209lstat '/proc/121' Failed: Permission denIEdlstat '/proc/122' Failed: Permission denIEdlstat '/proc/1227' Failed: Permission denIEdlstat '/proc/123' Failed: Permission denIEdlstat '/proc/1239' Failed: Permission denIEdlstat '/proc/124' Failed: Permission denIEddr-xr-xr-x u0_a26   u0_a26            2015-09-12 03:31 1246lstat '/proc/125' Failed: Permission denIEdlstat '/proc/126' Failed: Permission denIEdlstat '/proc/12696' Failed: Permission denIEdlstat '/proc/127' Failed: Permission denIEdlstat '/proc/128' Failed: Permission denIEdlstat '/proc/13' Failed: Permission denIEddr-xr-xr-x u0_a26   u0_a26            2015-09-12 03:31 1305lstat '/proc/132' Failed: Permission denIEdlstat '/proc/134' Failed: Permission denIEddr-xr-xr-x u0_a86   u0_a86            2015-09-14 07:16 1343lstat '/proc/135' Failed: Permission denIEdlstat '/proc/136' Failed: Permission denIEdlstat '/proc/137' Failed: Permission denIEdlstat '/proc/138' Failed: Permission denIEdlstat '/proc/139' Failed: Permission denIEdlstat '/proc/14' Failed: Permission denIEdlstat '/proc/140' Failed: Permission denIEddr-xr-xr-x u0_a84   u0_a84            2015-09-15 03:29 14005lstat '/proc/141' Failed: Permission denIEdlstat '/proc/142' Failed: Permission denIEdlstat '/proc/143' Failed: Permission denIEdlstat '/proc/144' Failed: Permission denIEdlstat '/proc/145' Failed: Permission denIEdlstat '/proc/149' Failed: Permission denIEdlstat '/proc/150' Failed: Permission denIEdlstat '/proc/153' Failed: Permission denIEdlstat '/proc/155' Failed: Permission denIEdlstat '/proc/16' Failed: Permission denIEdlstat '/proc/160' Failed: Permission denIEdlstat '/proc/163' Failed: Permission denIEdlstat '/proc/164' Failed: Permission denIEdlstat '/proc/165' Failed: Permission denIEddr-xr-xr-x u0_a9    u0_a9             2015-09-12 03:31 1652lstat '/proc/166' Failed: Permission denIEdlstat '/proc/17' Failed: Permission denIEdlstat '/proc/18227' Failed: Permission denIEdlstat '/proc/188' Failed: Permission denIEdlstat '/proc/192' Failed: Permission denIEdlstat '/proc/193' Failed: Permission denIEdlstat '/proc/194' Failed: Permission denIEdlstat '/proc/195' Failed: Permission denIEdlstat '/proc/2' Failed: Permission denIEdlstat '/proc/20' Failed: Permission denIEddr-xr-xr-x u0_a19   u0_a19            2015-09-14 05:36 20564lstat '/proc/207' Failed: Permission denIEddr-xr-xr-x u0_a45   u0_a45            2015-09-15 03:00 20763lstat '/proc/208' Failed: Permission denIEdlstat '/proc/21' Failed: Permission denIEdlstat '/proc/210' Failed: Permission denIEdlstat '/proc/215' Failed: Permission denIEdlstat '/proc/216' Failed: Permission denIEdlstat '/proc/217' Failed: Permission denIEdlstat '/proc/218' Failed: Permission denIEdlstat '/proc/219' Failed: Permission denIEdlstat '/proc/22' Failed: Permission denIEdlstat '/proc/220' Failed: Permission denIEdlstat '/proc/222' Failed: Permission denIEdlstat '/proc/223' Failed: Permission denIEdlstat '/proc/224' Failed: Permission denIEdlstat '/proc/225' Failed: Permission denIEdlstat '/proc/2258' Failed: Permission denIEdlstat '/proc/226' Failed: Permission denIEdlstat '/proc/227' Failed: Permission denIEddr-xr-xr-x u0_a67   u0_a67            2015-09-15 03:15 2270lstat '/proc/23' Failed: Permission denIEdlstat '/proc/24' Failed: Permission denIEdlstat '/proc/2428' Failed: Permission denIEdlstat '/proc/24353' Failed: Permission denIEdlstat '/proc/25' Failed: Permission denIEdlstat '/proc/25597' Failed: Permission denIEdlstat '/proc/26' Failed: Permission denIEdlstat '/proc/26671' Failed: Permission denIEdlstat '/proc/27' Failed: Permission denIEddr-xr-xr-x u0_a84   u0_a84            2015-09-15 03:15 2738lstat '/proc/28' Failed: Permission denIEdlstat '/proc/29' Failed: Permission denIEdlstat '/proc/3' Failed: Permission denIEdlstat '/proc/30' Failed: Permission denIEdlstat '/proc/30095' Failed: Permission denIEddr-xr-xr-x u0_a18   u0_a18            2015-09-15 03:11 30266dr-xr-xr-x u0_a40   u0_a40            2015-09-15 03:11 30290lstat '/proc/30333' Failed: Permission denIEddr-xr-xr-x u0_a37   u0_a37            2015-09-15 03:11 30382dr-xr-xr-x u0_a77   u0_a77            2015-09-15 03:11 30420dr-xr-xr-x u0_a61   u0_a61            2015-09-15 03:11 30458lstat '/proc/30729' Failed: Permission denIEddr-xr-xr-x u0_a4    u0_a4             2015-09-14 11:12 30994lstat '/proc/31' Failed: Permission denIEddr-xr-xr-x u0_a9    u0_a9             2015-09-14 13:31 31453lstat '/proc/31844' Failed: Permission denIEdlstat '/proc/32' Failed: Permission denIEddr-xr-xr-x u0_a6    u0_a6             2015-09-15 01:13 32176lstat '/proc/32422' Failed: Permission denIEdlstat '/proc/32476' Failed: Permission denIEdlstat '/proc/32552' Failed: Permission denIEdlstat '/proc/33' Failed: Permission denIEdlstat '/proc/47' Failed: Permission denIEdlstat '/proc/48' Failed: Permission denIEdlstat '/proc/49' Failed: Permission denIEdlstat '/proc/5' Failed: Permission denIEdlstat '/proc/50' Failed: Permission denIEdlstat '/proc/590' Failed: Permission denIEdlstat '/proc/64' Failed: Permission denIEdlstat '/proc/65' Failed: Permission denIEdlstat '/proc/66' Failed: Permission denIEdlstat '/proc/666' Failed: Permission denIEdlstat '/proc/67' Failed: Permission denIEdlstat '/proc/68' Failed: Permission denIEdlstat '/proc/69' Failed: Permission denIEdlstat '/proc/694' Failed: Permission denIEdlstat '/proc/7' Failed: Permission denIEdlstat '/proc/70' Failed: Permission denIEdlstat '/proc/71' Failed: Permission denIEddr-xr-xr-x u0_a88   u0_a88            2015-09-14 06:14 7104lstat '/proc/72' Failed: Permission denIEddr-xr-xr-x u0_a88   u0_a88            2015-09-14 06:15 7217lstat '/proc/7221' Failed: Permission denIEdlstat '/proc/73' Failed: Permission denIEdlstat '/proc/74' Failed: Permission denIEdlstat '/proc/7487' Failed: Permission denIEdlstat '/proc/75' Failed: Permission denIEdlstat '/proc/76' Failed: Permission denIEdlstat '/proc/77' Failed: Permission denIEdlstat '/proc/78' Failed: Permission denIEdlstat '/proc/79' Failed: Permission denIEdlstat '/proc/8' Failed: Permission denIEdlstat '/proc/81' Failed: Permission denIEdlstat '/proc/82' Failed: Permission denIEddr-xr-xr-x u0_a14   u0_a14            2015-09-15 02:45 8250lstat '/proc/83' Failed: Permission denIEdlstat '/proc/84' Failed: Permission denIEdlstat '/proc/85' Failed: Permission denIEddr-xr-xr-x u0_a53   u0_a53            2015-09-13 11:39 8517lstat '/proc/87' Failed: Permission denIEdlstat '/proc/88' Failed: Permission denIEdlstat '/proc/89' Failed: Permission denIEdlstat '/proc/9' Failed: Permission denIEdlstat '/proc/90' Failed: Permission denIEddr-xr-xr-x u0_a9    u0_a9             2015-09-12 03:31 903lstat '/proc/91' Failed: Permission denIEddr-xr-xr-x u0_a9    u0_a9             2015-09-13 11:45 9159lstat '/proc/93' Failed: Permission denIEddr-xr-xr-x u0_a66   u0_a66            2015-09-14 08:52 9356lstat '/proc/94' Failed: Permission denIEdlstat '/proc/95' Failed: Permission denIEdlstat '/proc/97' Failed: Permission denIEdlstat '/proc/98' Failed: Permission denIEdlstat '/proc/99' Failed: Permission denIEddr-xr-xr-x root     root              2015-09-15 03:29 asounddr-xr-xr-x root     root              2015-09-15 03:29 bluetooth-r--r--r-- root     root            0 2015-09-15 03:29 buddyinfodr-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 cryptodr-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 diskstatsdr-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 filesystemsdr-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 ioportsdr-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 misclrwxrwxrwx root     root              2015-09-15 03:29 mounts -> self/mountslrwxrwxrwx 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 partitionsdr-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 schedstatdr-xr-xr-x root     root              2015-09-15 03:29 scsilrwxrwxrwx 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 swapsdr-xr-xr-x root     root              2015-09-14 06:13 syslstat '/proc/sysrq-trigger' Failed: Permission denIEddr-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_statsdr-xr-xr-x root     root              2015-09-15 03:29 ttydr-xr-xr-x root     root              2015-09-15 03:29 uID_cputimedr-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,使用新的java.io.file(“ / proc”).Listfiles();无法读取我收到“权限被拒绝”错误的文件.要么.

我的问题：

为什么我的申请过程无法读取这些目录？该权限授予“其他”用户读取访问权限(“ dr-xr-xr-x”).

解决方法:

AndroID 5及更高版本使用SElinux,后者使用两种形式的访问控制.传统的linux使用自由访问控制列表. SE组件还强制执行强制访问控制列表.前者是默认允许,后者是默认拒绝.

如果两组权限都允许您,则您或一个进程只能访问对象.访问由SE上下文确定. Shell和应用程序上下文具有不同的权限,不幸的是,尚无任何已知的方式来提供应用程序外壳程序上下文.

您可以使用以下方法查看安全上下文：