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//usr/lib/python2.4/site-packages/sepolgen/objectmodel.pyc
m "Qc @ s d Z d d d d d d d d d g Z d Z d Z d Z e e BZ h d e <d e <d e <d e <Z h e d <e d <e d <e d <Z d f d YZ d f d YZ d S( s This module provides knowledge object classes and permissions. It should be used to keep this knowledge from leaking into the more generic parts of the policy generation. t sockett fdt processt filet lnk_filet fifo_filet dbust capabilityt unix_stream_socketi i i t nt rt wt bt PermMapc B s t Z d Z d Z d Z RS( s A mapping between a permission and its information flow properties. PermMap represents the information flow properties of a single permission including the direction (read, write, etc.) and an abstract representation of the bandwidth of the flow (weight). c C s | | _ | | _ | | _ d S( N( t permt selft dirt weight( R R R R ( ( t8 /usr/lib/python2.4/site-packages/sepolgen/objectmodel.pyt __init__T s c C s d | i t | i | i f S( Ns' <sepolgen.objectmodel.PermMap %s %s %d>( R R t dir_to_strR R ( R ( ( R t __repr__Y s ( t __name__t __module__t __doc__R R ( ( ( R R M s t PermMappingsc B sD t Z d Z d Z d Z d Z d Z d Z d Z RS( s The information flow properties of a set of object classes and permissions. PermMappings maps one or more classes and permissions to their PermMap objects describing their information flow charecteristics. c C s h | _ d | _ t | _ d S( Ni ( R t classest default_weightt FLOW_BOTHt default_dir( R ( ( R R d s c C s6 d } x)| D]!} | i } t | d j p$ t | d j p | d d j o q n | d d j oK | d } | i i | o t d n h | i | <| i | } q t | d j o t d n | d j o t d n t | d t | d t | d } | | | i <q Wd S( ss Read the permission mappings from a file. This reads the format used by Apol in the setools suite. i i t #t classs duplicate class in perm mapi s" error in object classs permissionss permission outside of classi N( t Nonet curR t linet splitt fieldst lent cR R t has_keyt ValueErrorR t str_to_dirt intt pmR ( R R R! R$ R& R" R+ ( ( R t from_filei s& 7 (c C s | i | | S( s Get the permission map for the object permission. Returns: PermMap representing the permission Raises: KeyError if the object or permission is not defined N( R R t objR ( R R- R ( ( R t get s c C sE y | i | | } Wn) t j o t | | i | i Sn X| S( s Get the permission map for the object permission or a default. getdefault is the same as get except that a default PermMap is returned if the object class or permission is not defined. The default is FLOW_BOTH with a weight of 5. N( R R R- R R+ t KeyErrorR R R ( R R- R R+ ( ( R t getdefault s c C s: t } x- | D]% } | i | | } | | i B} q W| S( N( t FLOW_NONER t permsR R R0 R- R+ ( R R- R2 R R R+ ( ( R t getdefault_direction s c C s: d } x- | D]% } | i | | } | | i 7} q W| S( Ni ( t totalR2 R R R0 R- R+ R ( R R- R2 R R4 R+ ( ( R t getdefault_distance s ( R R R R R, R. R0 R3 R5 ( ( ( R R ^ s N( R t implicitly_typed_objectsR1 t FLOW_READt FLOW_WRITER R) R R R ( R6 R R8 R1 R R) R R7 R ( ( R t ? s ! **