pam_selinux8Linux-PAM Manualpam_selinuxPAM module to set the default security contextpam_selinux.so
close
debug
open
nottys
verbose
select_context
env_params
use_current_range
DESCRIPTION
In a nutshell, pam_selinux sets up the default security context for the
next execed shell.
When an application opens a session using pam_selinux, the shell that
gets executed will be run in the default security context, or if the
user chooses and the pam file allows the selected security context.
Also the controlling tty will have it's security context modified to
match the users.
Adding pam_selinux into a pam file could cause other pam modules to
change their behavior if the exec another application. The close and
open option help mitigate this problem. close option will only cause
the close portion of the pam_selinux to execute, and open will only
cause the open portion to run. You can add pam_selinux to the config
file twice. Add the pam_selinux close as the executes the open pass
through the modules, pam_selinux open_session will happen last.
When PAM executes the close pass through the modules pam_selinux
close_session will happen first.
OPTIONS
Only execute the close_session portion of the module.
Turns on debugging via
syslog3.
Only execute the open_session portion of the module.
Do not try to setup the ttys security context.
attempt to inform the user when security context is set.
Attempt to ask the user for a custom security context role.
If MLS is on ask also for sensitivity level.
Attempt to obtain a custom security context role from PAM environment.
If MLS is on obtain also sensitivity level. This option and the
select_context option are mutually exclusive. The respective PAM
environment variables are SELINUX_ROLE_REQUESTED,
SELINUX_LEVEL_REQUESTED, and
SELINUX_USE_CURRENT_RANGE. The first two variables
are self describing and the last one if set to 1 makes the PAM module behave as
if the use_current_range was specified on the command line of the module.
Use the sensitivity level of the current process for the user context
instead of the default level. Also supresses asking of the
sensitivity level from the user or obtaining it from PAM environment.
MODULE TYPES PROVIDED
Only the module type is provided.
RETURN VALUESPAM_AUTH_ERR
Unable to get or set a valid context.
PAM_SUCCESS
The security context was set successfull.
PAM_USER_UNKNOWN
The user is not known to the system.
EXAMPLES
auth required pam_unix.so
session required pam_permit.so
session optional pam_selinux.so
SEE ALSOpam.conf5,
pam.d5,
pam8AUTHOR
pam_selinux was written by Dan Walsh <dwalsh@redhat.com>.