On Fri, 2008-02-22 at 12:15 -0600, Jeremiah Jahn wrote:
> I can't seem to get the login to set the proper initial role for a user.
> Every time I login, I end up as auditadm, and not secstaff.
kernel policy just defines what is allowed, not what is the default, for
user contexts.
The defaults are determined by
examining /etc/selinux/$SELINUXTYPE/contexts/default_contexts
and /etc/selinux/$SELINUXTYPE/contexts/users/<seuser> (optional).
User context computation has been a source of subtle issues in the past;
I'd like to revisit the approach but we haven't gotten around to it.
> I have the following in my policy:
>
> userdom_unpriv_user_template(secstaff)
> userdom_role_change_template(secstaff, secadm)
> userdom_role_change_template(secstaff, auditadm)
> allow secstaff_t devlog_t:sock_file write;
> allow secstaff_t newrole_t:process { siginh noatsecure rlimitinh };
> allow secstaff_t syslogd_t:unix_dgram_socket sendto;
> allow secstaff_t unconfined_tmp_t:dir { write search rmdir remove_name create getattr add_name };
> allow secstaff_t user_home_dir_t:dir { read getattr search };
> userdom_manage_generic_user_home_content_files(secstaff_t)
> userdom_read_generic_user_home_content_files(secstaff_t)
>
> ############################################################
> # Set default role for sec staff <-- not quite :)
> #
> role secstaff_r types secstaff_t;
>
> ############################################################
> # define roles the secstaff can transition to
> #
> user secstaff_u roles { secstaff_r secadm_r auditadm_r } level s0 range s0 - s0;
>
>
>
>
>
> In the olden days in England, you could be hung for stealing a sheep or
> a loaf of bread. However, if a sheep stole a loaf of bread and gave it
> to you, you would only be tried for receiving, a crime punishable by
> forty lashes with the cat or the dog, whichever was handy. If you stole
> a dog and were caught, you were punished with twelve rabbit punches,
> although it was hard to find rabbits big enough or strong enough to
> punch you. -- Mike Harding, "The Armchair Anarchist's Almanac"
--
Stephen Smalley
National Security Agency
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