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NAME | DESCRIPTION | FILE FORMAT | EXAMPLE | SEE ALSO | COLOPHON |
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user_contexts(5) SELinux configuration user_contexts(5)
user_contexts - The SELinux user contexts configuration files
These optional user context configuration files contain entries
that allow SELinux-aware login applications such as PAM(8)
(running in their own process context), to determine the context
that a users login session should run under.
SELinux-aware login applications generally use one or more of the
following libselinux functions that read these files from the
active policy path:
get_default_context(3)
get_ordered_context_list(3)
get_ordered_context_list_with_level(3)
get_default_context_with_level(3)
get_default_context_with_role(3)
get_default_context_with_rolelevel(3)
query_user_context(3)
manual_user_enter_context(3)
There can be one file for each SELinux user configured on the
system. The file path is formed using the path returned by
selinux_user_contexts_path(3) for the active policy, with the
SELinux user name appended, for example:
/etc/selinux/{SELINUXTYPE}/contexts/users/unconfined_u
/etc/selinux/{SELINUXTYPE}/contexts/users/xguest_u
Where {SELINUXTYPE} is the entry from the selinux configuration
file config (see selinux_config(5)).
These files contain context information as described in the FILE
FORMAT section.
Each line in the user context configuration file consists of the
following:
login_process user_login_process
Where:
login_process
This consists of a role:type[:range] entry that
represents the login process context.
user_login_process
This consists of a role:type[:range] entry that
represents the user login process context.
# Example for xguest_u at
/etc/selinux/targeted/contexts/users/xguest_u
system_r:crond_t:s0 xguest_r:xguest_t:s0
system_r:initrc_t:s0 xguest_r:xguest_t:s0
system_r:local_login_t:s0 xguest_r:xguest_t:s0
system_r:remote_login_t:s0 xguest_r:xguest_t:s0
system_r:sshd_t:s0 xguest_r:xguest_t:s0
system_r:xdm_t:s0 xguest_r:xguest_t:s0
xguest_r:xguest_t:s0 xguest_r:xguest_t:s0
selinux(8), selinux_user_contexts_path(3), PAM(8),
get_ordered_context_list(3),
get_ordered_context_list_with_level(3),
get_default_context_with_level(3),
get_default_context_with_role(3),
get_default_context_with_rolelevel(3), query_user_context(3),
manual_user_enter_context(3), selinux_config(5)
This page is part of the selinux (Security-Enhanced Linux user-
space libraries and tools) project. Information about the project
can be found at ⟨https://github.com/SELinuxProject/selinux/wiki⟩.
If you have a bug report for this manual page, see
⟨https://github.com/SELinuxProject/selinux/wiki/Contributing⟩.
This page was obtained from the project's upstream Git repository
⟨https://github.com/SELinuxProject/selinux⟩ on 2025-08-11. (At
that time, the date of the most recent commit that was found in
the repository was 2025-08-04.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Security Enhanced Linux 28-Nov-2011 user_contexts(5)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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