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Diffstat (limited to 'modules/pam_selinux/pam_selinux.8')
| -rw-r--r-- | modules/pam_selinux/pam_selinux.8 | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/modules/pam_selinux/pam_selinux.8 b/modules/pam_selinux/pam_selinux.8 new file mode 100644 index 0000000..2745a47 --- /dev/null +++ b/modules/pam_selinux/pam_selinux.8 @@ -0,0 +1,151 @@ +'\" t +.\" Title: pam_selinux +.\" Author: [see the "AUTHOR" section] +.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/> +.\" Date: 06/08/2020 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_SELINUX" "8" "06/08/2020" "Linux-PAM Manual" "Linux\-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_selinux \- PAM module to set the default security context +.SH "SYNOPSIS" +.HP \w'\fBpam_selinux\&.so\fR\ 'u +\fBpam_selinux\&.so\fR [open] [close] [restore] [nottys] [debug] [verbose] [select_context] [env_params] [use_current_range] +.SH "DESCRIPTION" +.PP +pam_selinux is a PAM module that sets up the default SELinux security context for the next executed process\&. +.PP +When a new session is started, the open_session part of the module computes and sets up the execution security context used for the next +\fBexecve\fR(2) +call, the file security context for the controlling terminal, and the security context used for creating a new kernel keyring\&. +.PP +When the session is ended, the close_session part of the module restores old security contexts that were in effect before the change made by the open_session part of the module\&. +.PP +Adding pam_selinux into the PAM stack might disrupt behavior of other PAM modules which execute applications\&. To avoid that, +\fIpam_selinux\&.so open\fR +should be placed after such modules in the PAM stack, and +\fIpam_selinux\&.so close\fR +should be placed before them\&. When such a placement is not feasible, +\fIpam_selinux\&.so restore\fR +could be used to temporary restore original security contexts\&. +.SH "OPTIONS" +.PP +\fBopen\fR +.RS 4 +Only execute the open_session part of the module\&. +.RE +.PP +\fBclose\fR +.RS 4 +Only execute the close_session part of the module\&. +.RE +.PP +\fBrestore\fR +.RS 4 +In open_session part of the module, temporarily restore the security contexts as they were before the previous call of the module\&. Another call of this module without the restore option will set up the new security contexts again\&. +.RE +.PP +\fBnottys\fR +.RS 4 +Do not setup security context of the controlling terminal\&. +.RE +.PP +\fBdebug\fR +.RS 4 +Turn on debug messages via +\fBsyslog\fR(3)\&. +.RE +.PP +\fBverbose\fR +.RS 4 +Attempt to inform the user when security context is set\&. +.RE +.PP +\fBselect_context\fR +.RS 4 +Attempt to ask the user for a custom security context role\&. If MLS is on, ask also for sensitivity level\&. +.RE +.PP +\fBenv_params\fR +.RS 4 +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 +\fISELINUX_ROLE_REQUESTED\fR, +\fISELINUX_LEVEL_REQUESTED\fR, and +\fISELINUX_USE_CURRENT_RANGE\fR\&. 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\&. +.RE +.PP +\fBuse_current_range\fR +.RS 4 +Use the sensitivity level of the current process for the user context instead of the default level\&. Also suppresses asking of the sensitivity level from the user or obtaining it from PAM environment\&. +.RE +.SH "MODULE TYPES PROVIDED" +.PP +Only the +\fBsession\fR +module type is provided\&. +.SH "RETURN VALUES" +.PP +PAM_SUCCESS +.RS 4 +The security context was set successfully\&. +.RE +.PP +PAM_SESSION_ERR +.RS 4 +Unable to get or set a valid context\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +The user is not known to the system\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory allocation error\&. +.RE +.SH "EXAMPLES" +.sp +.if n \{\ +.RS 4 +.\} +.nf +auth required pam_unix\&.so +session required pam_permit\&.so +session optional pam_selinux\&.so + +.fi +.if n \{\ +.RE +.\} +.SH "SEE ALSO" +.PP +\fBexecve\fR(2), +\fBtty\fR(4), +\fBpam.d\fR(5), +\fBpam\fR(8), +\fBselinux\fR(8) +.SH "AUTHOR" +.PP +pam_selinux was written by Dan Walsh <dwalsh@redhat\&.com>\&. |