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__init__.py
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__init__.pyc
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__init__.pyo
142
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access.py
12.33
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access.pyc
13.18
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access.pyo
13.18
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audit.py
23.64
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audit.pyc
22.33
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audit.pyo
22.33
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classperms.py
2.75
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classperms.pyc
3.16
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classperms.pyo
3.16
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defaults.py
2.69
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defaults.pyc
2.87
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defaults.pyo
2.87
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interfaces.py
16.21
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interfaces.pyc
15.86
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interfaces.pyo
15.86
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lex.py
32.86
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lex.pyc
19.24
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lex.pyo
19.24
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matching.py
8.45
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matching.pyc
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matching.pyo
7.4
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module.py
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objectmodel.py
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objectmodel.pyc
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objectmodel.pyo
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output.py
5.01
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output.pyc
4.51
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output.pyo
4.51
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policygen.py
16.31
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policygen.pyc
15.25
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policygen.pyo
15.18
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refparser.py
30.2
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refparser.pyc
36.27
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refparser.pyo
36.27
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refpolicy.py
27.31
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refpolicy.pyc
46.45
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refpolicy.pyo
46.45
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sepolgeni18n.py
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sepolgeni18n.pyc
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util.py
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util.pyo
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yacc.py
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Code Editor : audit.pyo
� ��^c @ sL d d l Z d d l Z d d l m Z d d l m Z d d l m Z d � Z d � Z d � Z d f d � � YZ d e f d � � YZ d e f d � � YZ d d l j Z i Z d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d f d � � YZ d f d � � YZ d f d � � YZ d S( i����Ni ( t refpolicy( t access( t utilc C s� d d l } d d l } t d d � } t | j � j � d � } | j | j | j � | � } | j d | � } | j d | � } | j d d d d | | g d | j �j � d } t j r� t j | � } n | S( s Obtain all of the avc and policy load messages from the audit log. This function uses ausearch and requires that the current process have sufficient rights to run ausearch. Returns: string contain all of the audit messages returned by ausearch. i����Ns /proc/uptimet ri s %xs %Xs /sbin/ausearchs -ms5 AVC,USER_AVC,MAC_POLICY_LOAD,DAEMON_START,SELINUX_ERRs -tst stdout( t subprocesst timet opent floatt readt splitt closet localtimet strftimet Popent PIPEt communicateR t PY3t decode_input( R R t fdt offt st bootdatet boottimet output( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt get_audit_boot_msgs s c C sV d d l } | j d d d g d | j �j � d } t j rR t j | � } n | S( s Obtain all of the avc and policy load messages from the audit log. This function uses ausearch and requires that the current process have sufficient rights to run ausearch. Returns: string contain all of the audit messages returned by ausearch. i����Ns /sbin/ausearchs -ms5 AVC,USER_AVC,MAC_POLICY_LOAD,DAEMON_START,SELINUX_ERRR i ( R R R R R R R ( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt get_audit_msgs2 s c C sP d d l } | j d g d | j �j � d } t j rL t j | � } n | S( s� Obtain all of the avc and policy load messages from /bin/dmesg. Returns: string contain all of the audit messages returned by dmesg. i����Ns /bin/dmesgR i ( R R R R R R R ( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt get_dmesg_msgsA s t AuditMessagec B s e Z d Z d � Z d � Z RS( s� Base class for all objects representing audit messages. AuditMessage is a base class for all audit messages and only provides storage for the raw message (as a string) and a parsing function that does nothing. c C s | | _ d | _ d S( Nt ( t messaget header( t selfR ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __init__W s c C sz xs | D]k } | j d � } t | � d k rQ | d d k r | | _ d Sq n | d d k r | d | _ d Sq Wd S( s� Parse a string that has been split into records by space into an audit message. This method should be overridden by subclasses. Error reporting should be done by raise ValueError exceptions. t =i i s audit(Ni t msgi ( R t lenR ( R t recsR# t fields( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt from_split_string[ s ( t __name__t __module__t __doc__R! R' ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR P s t InvalidMessagec B s e Z d Z d � Z RS( s� Class representing invalid audit messages. This is used to differentiate between audit messages that aren't recognized (that should return None from the audit message parser) and a message that is recognized but is malformed in some way. c C s t j | | � d S( N( R R! ( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! v s ( R( R) R* R! ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR+ p s t PathMessagec B s e Z d Z d � Z d � Z RS( s! Class representing a path messagec C s t j | | � d | _ d S( NR ( R R! t path( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! { s c C st t j | | � x] | D]U } | j d � } t | � d k rD q n | d d k r | d d d !| _ d Sq Wd S( NR" i i R- i i����( R R' R R$ R- ( R R% R# R& ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR' s ( R( R) R* R! R' ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR, y s t AVCMessagec B s2 e Z d Z d � Z d � Z d � Z d � Z RS( sk AVC message representing an access denial or granted message. This is a very basic class and does not represent all possible fields in an avc message. Currently the fields are: scontext - context for the source (process) that generated the message tcontext - context for the target tclass - object class for the target (only one) comm - the process name exe - the on-disc binary path - the path of the target access - list of accesses that were allowed or denied denial - boolean indicating whether this was a denial (True) or granted (False) message. An example audit message generated from the audit daemon looks like (line breaks added): 'type=AVC msg=audit(1155568085.407:10877): avc: denied { search } for pid=677 comm="python" name="modules" dev=dm-0 ino=13716388 scontext=user_u:system_r:setroubleshootd_t:s0 tcontext=system_u:object_r:modules_object_t:s0 tclass=dir' An example audit message stored in syslog (not processed by the audit daemon - line breaks added): 'Sep 12 08:26:43 dhcp83-5 kernel: audit(1158064002.046:4): avc: denied { read } for pid=2 496 comm="bluez-pin" name=".gdm1K3IFT" dev=dm-0 ino=3601333 scontext=user_u:system_r:bluetooth_helper_t:s0-s0:c0 tcontext=system_u:object_r:xdm_tmp_t:s0 tclass=file c C s� t j | | � t j � | _ t j � | _ d | _ d | _ d | _ d | _ d | _ d | _ g | _ t | _ t j | _ d S( NR ( R R! R t SecurityContextt scontextt tcontextt tclasst commt exeR- t namet inot accessest Truet denialt audit2whyt TERULEt type( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! � s c C s� t } | } | t | � d k r8 t d | j � � n xN | t | � k r� | | d k rg t } Pn | j j | | � | d } q; W| s� t d | j � � n | d S( Ni s# AVC message in invalid format [%s] t }( t FalseR$ t ValueErrorR R8 R7 t append( R R% t startt found_closet i( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __parse_access� s c C s> t j | | � t } t } t } t } x�t t | � � D]�} | | d k rs | j | | d � } t } q; n | | d k r� t | _ n | | j d � } t | � d k r� q; n | d d k r� t j | d � | _ t } q; | d d k rt j | d � | _ t } q; | d d k r>| d | _ t } q; | d d k re| d d d !| _ q; | d d k r�| d d d !| _ q; | d d k r�| d d d !| _ q; | d d k r�| d d d !| _ q; | d d k r; | d | _ q; q; W| s| s| s| r0t d | j � � n | j � d S( Nt {i t grantedR" i i R0 R1 R2 R3 i����R4 R5 R- R6 s# AVC message in invalid format [%s] ( R R' R> t rangeR$ t _AVCMessage__parse_accessR8 R9 R R R/ R0 R1 R2 R3 R4 R5 R- R6 R? R t analyze( R R% t found_srct found_tgtt found_classt found_accessRC R& ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR' � sJ c C s� | j j � } | j j � } t | j � } g | _ | | | j | f t j � k r t | | | j | f \ | _ | _ n9t j | | | j | j � \ | _ | _ | j t j k r� t j | _ n | j t j k r� t d | � � n | j t j k rt d | � � n | j t j k r<t d | j � � n | j t j k rmt d d j | j � � � n | j t j k r�t d � � n | j t j k r�| j g | _ | j j | j j k r�| j j d | j j d | j j f � n | j j | j j k rK| j j d k rK| j j d | j j d | j j f � n | j j | j j k r�| j j d | j j d | j j f � q�n | j | j f t | | | j | f <d S( Ns Invalid Target Context %s s Invalid Source Context %s s Invalid Type Class %s s Invalid permission %s t s& Error during access vector computations user (%s)t object_rs role (%s)s level (%s)( R1 t to_stringR0 t tupleR7 t dataR2 t avcdictt keysR< R: RI t NOPOLICYR; t BADTCONR? t BADSCONt BADPERMt joint BADCOMPUTEt CONSTRAINTt userR@ t rolet level( R R1 R0 t access_tuple( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyRI � s8 !(* -*-0( R( R) R* R! RH R' RI ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR. � s ,t PolicyLoadMessagec B s e Z d Z d � Z RS( s6 Audit message indicating that the policy was reloaded.c C s t j | | � d S( N( R R! ( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! s ( R( R) R* R! ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR` s t DaemonStartMessagec B s e Z d Z d � Z d � Z RS( s3 Audit message indicating that a daemon was started.c C s t j | | � t | _ d S( N( R R! R> t auditd( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! # s c C s, t j | | � d | k r( t | _ n d S( NRb ( R R' R8 Rb ( R R% ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR' ' s ( R( R) R* R! R' ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyRa ! s t ComputeSidMessagec B s) e Z d Z d � Z d � Z d � Z RS( s� Audit message indicating that a sid was not valid. Compute sid messages are generated on attempting to create a security context that is not valid. Security contexts are invalid if the role is not authorized for the user or the type is not authorized for the role. This class does not store all of the fields from the compute sid message - just the type and role. c C sJ t j | | � t j � | _ t j � | _ t j � | _ d | _ d S( NR ( R R! R R/ t invalid_contextR0 R1 R2 ( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! 7 s c C s� t j | | � t | � d k r1 t d � � n yz t j | d � | _ t j | d j d � d � | _ t j | d j d � d � | _ | d j d � d | _ Wn t d � � n Xd S( Ni s; Split string does not represent a valid compute sid messagei i R" i i i ( R R' R$ R? R R/ Rd R R0 R1 R2 ( R R% ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR' > s ## c C s d | j | j f S( Ns role %s types %s; ( R] R< ( R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR J s ( R( R) R* R! R' R ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyRc - s t AuditParserc B s� e Z d Z e d � Z d � Z d � Z d � Z d � Z d � Z d � Z d d � Z d � Z d � Z d � Z d e d � Z RS( s� Parser for audit messages. This class parses audit messages and stores them according to their message type. This is not a general purpose audit message parser - it only extracts selinux related messages. Each audit messages are stored in one of four lists: avc_msgs - avc denial or granted messages. Messages are stored in AVCMessage objects. comput_sid_messages - invalid sid messages. Messages are stored in ComputSidMessage objects. invalid_msgs - selinux related messages that are not valid. Messages are stored in InvalidMessageObjects. policy_load_messages - policy load messages. Messages are stored in PolicyLoadMessage objects. These lists will be reset when a policy load message is seen if AuditParser.last_load_only is set to true. It is assumed that messages are fed to the parser in chronological order - time stamps are not parsed. c C s | j � | | _ d S( N( t _AuditParser__initializet last_load_only( R Rg ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! e s c C sV g | _ g | _ g | _ g | _ g | _ i | _ t | _ i | _ | j � d S( N( t avc_msgst compute_sid_msgst invalid_msgst policy_load_msgst path_msgst by_headerR> t check_input_filet inode_dictt _AuditParser__store_base_types( R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __initializei s c C sP g | j � D] } | j d � ^ q } x!| D]} t } | d k s_ | d k s_ | d k rt t | � } t } n� | d k r� t | � } t } no | d k s� | d k r� t | � } t } nB | d k r� t | � } t } n! | d k rt t � } t } n | r/ t | _ y | j | � Wn t k rCt | � } n X| Sq/ Wd S( Ns �s avc:s message=avc:s msg='avc:s security_compute_sid:s type=MAC_POLICY_LOADs type=1403s type=AVC_PATHs type=DAEMON_START( R t stripR> R. R8 Rc R` R, Ra t listRn R' R? R+ t None( R t linet xt recRC t foundR# ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __parse_line� s4 ( $ c C se | j | � } | d k r d St | t � rG | j r| j � qn� t | t � r� | j ru | j ru | j � n | j j | � n� t | t � r� | j j | � nf t | t � r� | j j | � nD t | t � r� | j j | � n" t | t � r| j j | � n | j d k ra| j | j k rK| j | j j | � qa| g | j | j <n d S( NR ( t _AuditParser__parse_lineRt t isinstanceR` Rg Rf Ra Rb Rk R@ R. Rh Rc Ri R+ Rj R, Rl R Rm ( R Ru R# ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __parse� s, c C s� x� | j j � D]� } g } d } xE | D]= } t | t � rG | } q) t | t � r) | j | � q) q) Wt | � d k r | r x | D] } | j | _ q� Wq q Wd S( Ni ( Rm t valuesRt R{ R, R. R@ R$ R- ( R t valuet avcR- R# t a( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __post_process� s c C si | j � } x# | r1 | j | � | j � } q W| j s[ t j j d � t j d � n | j � d S( sp Parse the contents of a file object. This method can be called multiple times (along with parse_string).s Nothing to do i N( t readlinet _AuditParser__parseRn t syst stderrt writet exitt _AuditParser__post_process( R t inputRu ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt parse_file� s c C s; | j d � } x | D] } | j | � q W| j � d S( s� Parse a string containing audit messages - messages should be separated by new lines. This method can be called multiple times (along with parse_file).s N( R R� R� ( R R� t linest l( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt parse_string� s c C sY t j � } xF | j D]; } | s2 | j | � r | j | j j | j j � q q W| S( so Return RoleAllowSet statements matching the specified filter Filter out types that match the filer, or all roles Params: role_filter - [optional] Filter object used to filter the output. Returns: Access vector set representing the denied access in the audit logs parsed by this object. ( R t RoleTypeSetRi t filtert addRd R] R< ( R t role_filtert role_typest cs( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt to_role� s #c C s� d d l } d d l } d } | d k s6 | d k r: | Sx^ | j D]S } | | k rm | j | | k rm | S| | k rD | j | | k rD | j | SqD W| | j j � k r� | | j | <n d | } y� | j | d | j d t d t �} y t | � } Wn t k rn XxX | j d � D]G } y7 t | j | � j � | k ra| | j | <} | SWq%q%Xq%WWn | j k r�} n X| S( Ni����R s locate -b '\%s'R� t shellt universal_newliness ( R t osRo RT t check_outputt STDOUTR8 t intR? R t lstatt st_inot CalledProcessError( R R5 t inodeR R� R- t dt commandR R6 t filet e( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __restore_path� s@ c C s" d d l } | j d � | _ d S( Ni����t base_file_type( t sepolicyt get_types_from_attributet base_types( R R� ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __store_base_types# s c C s� d d l } | j | k r. | j | k r. d S| | _ | | _ xf | j D][ } | | k rJ xB | j | � D]1 } | j | � rl | j | j d � � rl | Sql Wd SqJ Wd S( Ni����t _ti ( R� t old_scontextt old_tcontextR� t get_writable_filest endswitht startswitht rstrip( R R1 R0 R� t btypet writable( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt __get_base_type' s 'c C sC t j � } d | _ d | _ x | j D]} | j t k rI | rI q( n | j | j j | j j � } | j d k r� | j | j | j � | _ n | r� | j | � r;| j | j j | j j | j | j | j | | d | j d | j �q;q( | j | j j | j j | j | j | j | | d | j d | j �q( W| S( s� Convert the audit logs access into a an access vector set. Convert the audit logs into an access vector set, optionally filtering the restults with the passed in filter object. Filter objects are object instances with a .filter method that takes and access vector and returns True if the message should be included in the final output and False otherwise. Params: avc_filter - [optional] Filter object used to filter the output. Returns: Access vector set representing the denied access in the audit logs parsed by this object. R t avc_typeRR ( R t AccessVectorSetR� R� Rh R9 R8 t _AuditParser__get_base_typeR1 R< R0 R- t _AuditParser__restore_pathR5 R6 R� R� R2 R7 RR ( R t avc_filtert only_denialst av_setR t base_type( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyt to_access6 s$ N( R( R) R* R> R! Rf Rz R� R� R� R� Rt R� R� Rp R� R8 R� ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyRe O s $ % $ t AVCTypeFilterc B s e Z d � Z d � Z RS( c C s t j | � | _ d S( N( t ret compilet regex( R R� ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! \ s c C s< | j j | j j � r t S| j j | j j � r8 t St S( N( R� t matchR0 R< R8 R1 R> ( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR� _ s ( R( R) R! R� ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR� [ s t ComputeSidTypeFilterc B s e Z d � Z d � Z RS( c C s t j | � | _ d S( N( R� R� R� ( R R� ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR! g s c C sX | j j | j j � r t S| j j | j j � r8 t S| j j | j j � rT t St S( N( R� R� Rd R< R8 R0 R1 R> ( R R ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR� j s ( R( R) R! R� ( ( ( s4 /usr/lib64/python2.7/site-packages/sepolgen/audit.pyR� f s ( R� R� R R R R R R R R R+ R, t selinux.audit2whyR: RS R. 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