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getuserrange(3tsol)

Trusted Extensions Library Functions                       getuserrange(3TSOL)



NAME
       getuserrange - get the label range of a user

SYNOPSIS
       cc [flags...] file... -ltsol [library...]


       #include <tsol/label.h>

       m_range_t *getuserrange(const char *username);

DESCRIPTION
       The  getuserrange()  function  returns the label range of username. The
       lower bound in the range is used as the initial workspace label when  a
       user  logs into a multilevel desktop. The upper bound, or clearance, is
       used as an upper limit to the available labels that a user  can  assign
       to labeled workspaces.


       The default value for a user's label range is specified in label_encod‐
       ings(5). Overriding  values  for  individual  users  are  specified  in
       user_attr(5).


       If  the  labeld(8)  service  is enabled, the default value for a user's
       label range is specified in label_encodings(5). Otherwise, the  default
       clearance  is  specified  by  the CLEARANCE property in policy.conf(5),
       which defaults to ADMIN_HIGH. Overriding values  for  individual  users
       are specified in user_attr(5).

RETURN VALUES
       The  getuserrange()  function  returns  NULL  if  the memory allocation
       fails. Otherwise, the function returns a structure which must be  freed
       by the caller, as follows:

         m_range_t  *range;
             ...
             m_label_free(range->lower_bound);
             m_label_free(range->upper_bound);
             free(range);


ERRORS
       The getuserrange() function will fail if:

       ENOMEM    The  physical limits of the system are exceeded by size bytes
                 of memory which cannot be allocated.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; cw(2.17i) |cw(3.33i) lw(2.17i) |lw(3.33i) ATTRIBUTE  TYPEAT‐
       TRIBUTE VALUE _ Interface StabilitySee below.  _ MT-LevelMT-Safe



       The getuserrange() function is Committed for systems that implement the
       Defense Intelligence Agency (DIA)  MAC  policy  of  label_encodings(5).
       Other  policies  might  exist in a future release of Trusted Extensions
       that might make obsolete or supplement label_encodings.

SEE ALSO
       free(3C),   libtsol(3LIB),   m_label_free(3TSOL),   label_encodings(5),
       user_attr(5), attributes(7)



Oracle Solaris 11.4               10 Sep 2014              getuserrange(3TSOL)
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