chrome_sandbox_nacl_selinux

Section: SELinux Policy chrome_sandbox_nacl (8)
Updated: 19-05-26
Page Index

NAME

chrome_sandbox_nacl_selinux - Security Enhanced Linux Policy for the chrome_sandbox_nacl processes

DESCRIPTION

Security-Enhanced Linux secures the chrome_sandbox_nacl processes via flexible mandatory access control.

The chrome_sandbox_nacl processes execute with the chrome_sandbox_nacl_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.

For example:

ps -eZ | grep chrome_sandbox_nacl_t

ENTRYPOINTS

The chrome_sandbox_nacl_t SELinux type can be entered via the usr_t, bin_t, chrome_sandbox_nacl_exec_t file types.

The default entrypoint paths for the chrome_sandbox_nacl_t domain are the following:

All executeables with the default executable label, usually stored in /usr/bin and /usr/sbin. /opt/.*, /usr/.*, /emul/.*, /export(/.*)?, /ostree(/.*)?, /usr/doc(/.*)?/lib(/.*)?, /usr/inclu.e(/.*)?, /usr/share/rpm(/.*)?, /usr/share/doc(/.*)?/README.*, /usr/lib/modules(/.*)/vmlinuz, /usr/lib/modules(/.*)/initramfs.img, /usr/lib/sysimage(/.*)?, /usr/lib/ostree-boot(/.*)?, /opt, /usr, /emul, /opt/google/chrome[^/]*/nacl_helper_bootstrap, /opt/google/chrome/nacl_helper_bootstrap, /usr/lib/chromium-browser/nacl_helper_bootstrap

PROCESS TYPES

SELinux defines process types (domains) for each process running on the system

You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux chrome_sandbox_nacl policy is very flexible allowing users to setup their chrome_sandbox_nacl processes in as secure a method as possible.

The following process types are defined for chrome_sandbox_nacl:

chrome_sandbox_nacl_t

Note: semanage permissive -a chrome_sandbox_nacl_t can be used to make the process type chrome_sandbox_nacl_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.

BOOLEANS

SELinux policy is customizable based on least access required. chrome_sandbox_nacl policy is extremely flexible and has several booleans that allow you to manipulate the policy and run chrome_sandbox_nacl with the tightest access possible.

If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.

setsebool -P fips_mode 1

MANAGED FILES

The SELinux process type chrome_sandbox_nacl_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.

chrome_sandbox_home_t

        /home/[^/]+/.cache/chromium(/.*)?

       /home/[^/]+/.config/chromium(/.*)?

       /home/[^/]+/.cache/google-chrome(/.*)?

       /home/[^/]+/.cache/google-chrome-unstable(/.*)?

chrome_sandbox_tmpfs_t

FILE CONTEXTS

SELinux requires files to have an extended attribute to define the file type.

You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux chrome_sandbox_nacl policy is very flexible allowing users to setup their chrome_sandbox_nacl processes in as secure a method as possible.

The following file types are defined for chrome_sandbox_nacl:

chrome_sandbox_nacl_exec_t

- Set files with the chrome_sandbox_nacl_exec_t type, if you want to transition an executable to the chrome_sandbox_nacl_t domain.

Paths:: /opt/google/chrome[^/]*/nacl_helper_bootstrap, /opt/google/chrome/nacl_helper_bootstrap, /usr/lib/chromium-browser/nacl_helper_bootstrap

Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.

COMMANDS

semanage fcontext can also be used to manipulate default file context mappings.

semanage permissive can also be used to manipulate whether or not a process type is permissive.

semanage module can also be used to enable/disable/install/remove policy modules.

semanage boolean can also be used to manipulate the booleans

system-config-selinux is a GUI tool available to customize SELinux policy settings.

AUTHOR

This manual page was auto-generated using sepolicy manpage.