PAM_SEPERMIT(8)

NAME
pam_sepermit - PAM module to allow/deny login depending on SELinux enforcement state

SYNOPSIS

pam_sepermit.so [debug] [conf=/path/to/config/file]

DESCRIPTION

The pam_sepermit module allows or denies login depending on SELinux enforcement state.

When the user which is logging in matches an entry in the config file he is allowed access only when the SELinux is in enforcing mode. Otherwise he is denied access. For users not matching any entry in the config file the pam_sepermit module returns PAM_IGNORE return value.

The config file contains a simple list of user names one per line. If the name is prefixed with @ character it means that all users in the group name match. If it is prefixed with a % character the SELinux user is used to match against the name instead of the account name. Note that when SELinux is disabled the SELinux user assigned to the account cannot be determined. This means that such entries are never matched when SELinux is disabled and pam_sepermit will return PAM_IGNORE.

Each user name in the configuration file can have optional arguments separated by : character. The only currently recognized argument is exclusive. The pam_sepermit module will allow only single concurrent user session for the user with this argument specified and it will attempt to kill all processes of the user after logout.

OPTIONS

debug
    Turns on debugging via syslog(3).

conf=/path/to/config/file
    Path to alternative config file overriding the default.

MODULE SERVICES PROVIDED

Only the auth and account services are supported.

RETURN VALUES

PAM_AUTH_ERR
    SELinux is disabled or in the permissive mode and the user matches.

PAM_SUCCESS
    SELinux is in the enforcing mode and the user matches.

PAM_IGNORE
    The user does not match any entry in the config file.

PAM_USER_UNKNOWN
    The module was unable to determine the user's name.

PAM_SERVICE_ERR
    Error during reading or parsing the config file.

FILES

/etc/security/sepermit.conf
    Default configuration file

EXAMPLES

    auth     [success=done ignore=ignore default=bad] pam_sepermit.so
    auth     required  pam_unix.so
    account  required  pam_unix.so
    session  required  pam_permit.so

SEE ALSO

pam.conf(5), pam.d(5), pam(7)

AUTHOR

pam_sepermit was written by Tomas Mraz <tmraz@redhat.com>.