selinux-refpolicy/refpolicy/policy/users

##################################
#
# Core User configuration.
#

#
# gen_user(username, role_set, mls_defaultlevel, mls_range, [mcs_catetories])
#

#
# system_u is the user identity for system processes and objects.
# There should be no corresponding Unix user identity for system,
# and a user process should never be assigned the system user
# identity.
#
gen_user(system_u, system_r, s0, s0 - s15:c0.c255, c0.c255)

#
# user_u is a generic user identity for Linux users who have no
# SELinux user identity defined.  The modified daemons will use
# this user identity in the security context if there is no matching
# SELinux user identity for a Linux user.  If you do not want to
# permit any access to such users, then remove this entry.
#
ifdef(`targeted_policy',`
gen_user(user_u, user_r sysadm_r system_r, s0, s0 - s15:c0.c255, c0.c255)
',`
gen_user(user_u, user_r, s0, s0)
gen_user(staff_u, staff_r secadm_r sysadm_r, s0, s0 - s15:c0.c255, c0.c255)
gen_user(sysadm_u, sysadm_r, s0, s0 - s15:c0.c255, c0.c255)
')

#
# The following users correspond to Unix identities.
# These identities are typically assigned as the user attribute
# when login starts the user shell.  Users with access to the sysadm_r
# role should use the staff_r role instead of the user_r role when
# not in the sysadm_r.
#
ifdef(`targeted_policy',`
	gen_user(root, user_r sysadm_r system_r, s0, s0 - s15:c0.c255, c0.c255)
',`
	ifdef(`direct_sysadm_daemon',`
		gen_user(root, sysadm_r staff_r secadm_r system_r, s0, s0 - s15:c0.c255, c0.c255)
	',`
		gen_user(root, sysadm_r staff_r secadm_r , s0, s0 - s15:c0.c255, c0.c255)
	')
')