chcon可实现对文件的SEAndroid安全标签的修改

chcon可实现对文件的SEAndroid安全标签的修改

参考使用如下：

chcon -u u system/app/

chcon -r object_r system/app/

chcon -t system_file system/app/

chcon -u u system/priv-app/

chcon -r object_r system/priv-app/

chcon -t system_file system/priv-app/

chcon -u u system b/.so

chcon -r object_r system b/.so

chcon -t system_library_file system b/*.so

chcon -u u xxx

chcon -r object_r xxx

chcon -t system_file xxx

chcon--reference=RFILE dest

详情请查询 man chcon

chcon的使用需要系统支持selinux，否则命令可能执行失败。

安装selinux

首先应用安装一下

sudo apt-get install selinux

修改配置文件

修改/etc/selinux/config 文件

有效将SELINUX=enforcing

无效SELINUX=disabled

SELINUX=permissive 表示如果不符合selinux规则，仍然可以执行，只是会发出警告

重启机器生效

我的安装日志

apt-get install selinux
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  checkpolicy gawk libaudit0 libsemanage-common libsemanage1 libsepol1 libsigsegv2 libustr-1.0-1 policycoreutils python-selinux python-semanage python-sepolgen
  selinux-policy-ubuntu selinux-utils
Suggested packages:
  selinux-policy-dev
Recommended packages:
  selinux-policy-default
The following packages will be REMOVED:
  apparmor
The following NEW packages will be installed:
  checkpolicy gawk libaudit0 libsemanage-common libsemanage1 libsepol1 libsigsegv2 libustr-1.0-1 policycoreutils python-selinux python-semanage python-sepolgen selinux
  selinux-policy-ubuntu selinux-utils
0 upgraded, 15 newly installed, 1 to remove and 21 not upgraded.
Need to get 4793 kB of archives.
After this operation, 43.3 MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://mirrors.163.com/ubuntu/ precise/main libsigsegv2 amd64 2.9-4ubuntu2 [14.6 kB]
Get:2 http://mirrors.163.com/ubuntu/ precise/main gawk amd64 1:3.1.8+dfsg-0.1ubuntu1 [465 kB]
Get:3 http://mirrors.163.com/ubuntu/ precise/main libsepol1 amd64 2.1.0-1.2 [121 kB]
Get:4 http://mirrors.163.com/ubuntu/ precise/universe libaudit0 amd64 1.7.18-1ubuntu1 [67.5 kB]
Get:5 http://mirrors.163.com/ubuntu/ precise/universe libustr-1.0-1 amd64 1.0.4-2 [77.1 kB]
Get:6 http://mirrors.163.com/ubuntu/ precise/universe libsemanage-common all 2.1.0-2 [6608 B]
Get:7 http://mirrors.163.com/ubuntu/ precise/universe libsemanage1 amd64 2.1.0-2 [86.2 kB]
Get:8 http://mirrors.163.com/ubuntu/ precise/universe python-semanage amd64 2.1.0-2 [60.8 kB]
Get:9 http://mirrors.163.com/ubuntu/ precise/universe python-selinux amd64 2.1.0-4.1ubuntu1 [171 kB]
Get:10 http://mirrors.163.com/ubuntu/ precise/universe python-sepolgen all 1.1.0-1 [75.8 kB]
Get:11 http://mirrors.163.com/ubuntu/ precise-updates/universe policycoreutils amd64 2.1.0-3ubuntu1.1 [520 kB]
Get:12 http://mirrors.163.com/ubuntu/ precise/universe selinux-utils amd64 2.1.0-4.1ubuntu1 [38.3 kB]
Get:13 http://mirrors.163.com/ubuntu/ precise/universe selinux all 1:0.11 [11.2 kB]
Get:14 http://mirrors.163.com/ubuntu/ precise/universe checkpolicy amd64 2.1.0-1.1 [275 kB]
Get:15 http://mirrors.163.com/ubuntu/ precise/universe selinux-policy-ubuntu all 0.2.20091117-0ubuntu2 [2804 kB]
Fetched 4793 kB in 9s (500 kB/s)
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
	LANGUAGE = "zh_CN:zh",
	LC_ALL = (unset),
	LC_TIME = "zh_CN",
	LC_MONETARY = "zh_CN",
	LC_ADDRESS = "zh_CN",
	LC_TELEPHONE = "zh_CN",
	LC_NAME = "zh_CN",
	LC_MEASUREMENT = "zh_CN",
	LC_IDENTIFICATION = "zh_CN",
	LC_NUMERIC = "zh_CN",
	LC_PAPER = "zh_CN",
	LANG = "zh_CN.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
Preconfiguring packages ...
/usr/bin/locale: Cannot set LC_CTYPE to default locale: No such file or directory
/usr/bin/locale: Cannot set LC_MESSAGES to default locale: No such file or directory
/usr/bin/locale: Cannot set LC_ALL to default locale: No such file or directory
(Reading database ... 84607 files and directories currently installed.)
Removing apparmor ...
 * Clearing AppArmor profiles cache                                                                                                                                         [ OK ]
All profile caches have been cleared, but no profiles have been unloaded.
Unloading profiles will leave already running processes permanently
unconfined, which can lead to unexpected situations.

To set a process to complain mode, use the command line tool
'aa-complain'. To really tear down all profiles, run the init script
with the 'teardown' option."
Processing triggers for man-db ...
Processing triggers for ureadahead ...
Selecting previously unselected package libsigsegv2.
(Reading database ... 84589 files and directories currently installed.)
Unpacking libsigsegv2 (from .../libsigsegv2_2.9-4ubuntu2_amd64.deb) ...
Setting up libsigsegv2 (2.9-4ubuntu2) ...
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
Selecting previously unselected package gawk.
(Reading database ... 84597 files and directories currently installed.)
Unpacking gawk (from .../gawk_1%3a3.1.8+dfsg-0.1ubuntu1_amd64.deb) ...
Selecting previously unselected package libsepol1.
Unpacking libsepol1 (from .../libsepol1_2.1.0-1.2_amd64.deb) ...
Selecting previously unselected package libaudit0.
Unpacking libaudit0 (from .../libaudit0_1.7.18-1ubuntu1_amd64.deb) ...
Selecting previously unselected package libustr-1.0-1.
Unpacking libustr-1.0-1 (from .../libustr-1.0-1_1.0.4-2_amd64.deb) ...
Selecting previously unselected package libsemanage-common.
Unpacking libsemanage-common (from .../libsemanage-common_2.1.0-2_all.deb) ...
Selecting previously unselected package libsemanage1.
Unpacking libsemanage1 (from .../libsemanage1_2.1.0-2_amd64.deb) ...
Selecting previously unselected package python-semanage.
Unpacking python-semanage (from .../python-semanage_2.1.0-2_amd64.deb) ...
Selecting previously unselected package python-selinux.
Unpacking python-selinux (from .../python-selinux_2.1.0-4.1ubuntu1_amd64.deb) ...
Selecting previously unselected package python-sepolgen.
Unpacking python-sepolgen (from .../python-sepolgen_1.1.0-1_all.deb) ...
Selecting previously unselected package policycoreutils.
Unpacking policycoreutils (from .../policycoreutils_2.1.0-3ubuntu1.1_amd64.deb) ...
Selecting previously unselected package selinux-utils.
Unpacking selinux-utils (from .../selinux-utils_2.1.0-4.1ubuntu1_amd64.deb) ...
Selecting previously unselected package selinux.
Unpacking selinux (from .../selinux_1%3a0.11_all.deb) ...
Selecting previously unselected package checkpolicy.
Unpacking checkpolicy (from .../checkpolicy_2.1.0-1.1_amd64.deb) ...
Processing triggers for man-db ...
Processing triggers for ureadahead ...
Setting up libaudit0 (1.7.18-1ubuntu1) ...
Setting up libsepol1 (2.1.0-1.2) ...
Setting up libustr-1.0-1 (1.0.4-2) ...
Setting up libsemanage-common (2.1.0-2) ...
Setting up libsemanage1 (2.1.0-2) ...
Setting up python-semanage (2.1.0-2) ...
Setting up python-selinux (2.1.0-4.1ubuntu1) ...
Setting up python-sepolgen (1.1.0-1) ...
Setting up policycoreutils (2.1.0-3ubuntu1.1) ...
update-rc.d: warning: policycoreutils start runlevel arguments (S 2 3 4 5) do not match LSB Default-Start values (2 3 4 5)
update-rc.d: warning: mcstrans start runlevel arguments (S 2 3 4 5) do not match LSB Default-Start values (2 3 4 5)
update-rc.d: warning: sandbox start runlevel arguments (S 2 3 4 5) do not match LSB Default-Start values (2 3 4 5)
Setting up selinux-utils (2.1.0-4.1ubuntu1) ...
Setting up selinux (1:0.11) ...
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.8.0-44-generic
Found initrd image: /boot/initrd.img-3.8.0-44-generic
Found linux image: /boot/vmlinuz-3.8.0-29-generic
Found initrd image: /boot/initrd.img-3.8.0-29-generic
Found memtest86+ image: /boot/memtest86+.bin
done
 * Starting SELinux autorelabel                                                                                                                                             [ OK ]
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
Processing triggers for python-support ...
Processing triggers for initramfs-tools ...
update-initramfs: Generating /boot/initrd.img-3.8.0-44-generic
Selecting previously unselected package selinux-policy-ubuntu.
(Reading database ... 85025 files and directories currently installed.)
Unpacking selinux-policy-ubuntu (from .../selinux-policy-ubuntu_0.2.20091117-0ubuntu2_all.deb) ...
Setting up gawk (1:3.1.8+dfsg-0.1ubuntu1) ...
Setting up checkpolicy (2.1.0-1.1) ...
Setting up selinux-policy-ubuntu (0.2.20091117-0ubuntu2) ...
Updating /etc/selinux/config.
Processing triggers for selinux ...
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
semodule deferred processing now taking place
/usr/sbin/semodule: SELinux policy is not managed or store cannot be accessed.
 * File relabel will occur upon next shutdown/reboot.
 * Starting SELinux autorelabel                                                                                                                                                     * A relabel has already been requested. Please reboot to finish relabeling your system.

分类: android安全