MINI MINI MANI MO

Path : /usr/lib64/python2.7/site-packages/sepolgen/
File Upload :
Current File : //usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyc

ó
o‘P\c@sţdZddlZddlZddlmZddlmZddlmZddlmZddlm	Z	d	dd
„ƒYZ
d„Zd„Zd
„Z
d„Zd„Zddd„ƒYZddd„ƒYZddd„ƒYZddd„ƒYZdS(s7
Classes for representing and manipulating interfaces.
i˙˙˙˙Ni(taccess(t	refpolicy(tobjectmodel(tmatching(t_tParamcBsSeZdZd„Zd„Zd„ZeeeƒZedd„ƒZd„Z	RS(s;
    Object representing a paramater for an interface.
    cCs1d|_tj|_tjƒ|_t|_dS(Nt(t_Param__nameRtSRC_TYPEttypetIdSettobj_classestTruetrequired(tself((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt__init__&s	cCs/tj|ƒs"td|ƒ‚n||_dS(NsName [%s] is not a param(Rt
is_idparamt
ValueErrorR(Rtname((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytset_name,scCs|jS(N(R(R((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytget_name1stfgetcCst|jdƒS(Ni(tintR(R((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt<lambda>6scCs*d|jtj|jdj|jƒfS(Ns0<sepolgen.policygen.Param instance [%s, %s, %s]>t (RRtfield_to_strR	tjoinR(R((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt__repr__8s(
t__name__t
__module__t__doc__RRRtpropertyRtnumR(((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyR"s			cCs+d}||kră||}||jkr/dS|tjksM|tjkrÚ|jtjksq|jtjkrÚd}|rŒ|jg}ng}x6tj|j|ƒD]}|tj	kr¨d}Pq¨q¨Wtj|_qd}n(t
ƒ}||_||_|||j<|r'|jj|jƒn|S(Nii(
R	RRtTGT_TYPEt	obj_classt	itertoolstchainRRtimplicitly_typed_objectsRRtadd(RR	tavtparamstrettptavobjstobj((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt__param_insert>s0
$				
cCsd}t}tj|jƒrKt|jtj||ƒdkrKd}qKntj|jƒrŠt|jtj||ƒdkrŠd}qŠntj|j	ƒrÉt|j	tj
||ƒdkrÉd}qÉnxA|jD]6}tj|ƒrÓt|tƒdkr	d}q	qÓqÓW|S(sjExtract the paramaters from an access vector.

    Extract the paramaters (in the form $N) from an access
    vector, storing them as Param objects in a dictionary.
    Some attempt is made at resolving conflicts with other
    entries in the dict, but if an unresolvable conflict is
    found it is reported to the caller.

    The goal here is to figure out how interface paramaters are
    actually used in the interface - e.g., that $1 is a domain used as
    a SRC_TYPE. In general an interface will look like this:

    interface(`foo', `
       allow $1 foo : file read;
    ')

    This is simple to figure out - $1 is a SRC_TYPE. A few interfaces
    are more complex, for example:

    interface(`foo_trans',`
       domain_auto_trans($1,fingerd_exec_t,fingerd_t)

       allow $1 fingerd_t:fd use;
       allow fingerd_t $1:fd use;
       allow fingerd_t $1:fifo_file rw_file_perms;
       allow fingerd_t $1:process sigchld;
    ')

    Here the usage seems ambigious, but it is not. $1 is still domain
    and therefore should be returned as a SRC_TYPE.

    Returns:
      0  - success
      1  - conflict found
    ii(
tFalseRRtsrc_typeR-RRttgt_typeR!R"t	OBJ_CLASStpermstPERM(R'R(R)t	found_srctperm((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytav_extract_paramsjs $!!!cCs/tj|jƒr+t|jtjd|ƒSdS(N(RRtroleR-RtROLEtNone(R7R(((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytrole_extract_paramsŁscsŹ‡fd†}d}||jtjƒr3d}n||jtjƒrQd}n||jtjƒrod}ntj|j	ƒr¨t
|j	tjdˆƒr¨d}q¨n|S(NcsKd}x>|D]6}tj|ƒr
t||dˆƒrCd}qCq
q
W|S(Nii(RRR-R9(tsetR	R)tx(R((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytextract_from_set¨s
ii(
t	src_typesRRt	tgt_typesR!RR1RRt	dest_typeR-t	DEST_TYPER9(truleR(R=R)((R(s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyttype_rule_extract_params§s			cCsQd}xD|jD]9}tj|ƒrt|tjd|ƒrId}qIqqW|S(Nii(targsRRR-RRR9(tifcallR(R)targ((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytifcall_extract_paramsŔstAttributeVectorcBseZd„Zd„ZRS(cCsd|_tjƒ|_dS(NR(RRtAccessVectorSet(R((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRĚs	cCs|jj|ƒdS(N(Rtadd_av(RR'((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRJĐs(RRRRJ(((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRHËs	tAttributeSetcBs#eZd„Zd„Zd„ZRS(cCs
i|_dS(N(t
attributes(R((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRÔscCs||j|j<dS(N(RLR(Rtattr((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytadd_attr×scCs­d„}d}x|D]y}|d }|ddkr[|rL|j|ƒn||ƒ}q|r|jdƒ}tj|ƒ}|j|ƒqqW|rŠ|j|ƒndS(NcSsb|dd!jƒ}t|ƒdks5|ddkrHtd|ƒ‚ntƒ}|d|_|S(Nii˙˙˙˙iit	Attributes#Syntax error Attribute statement %s(tsplittlentSyntaxErrorRHR(tlinetfieldsta((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt
parse_attrŰs"	
i˙˙˙˙it[t,(R9RNRPRtAccessVectorRJ(RtfdRVRURStlR'((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt	from_fileÚs		

(RRRRNR\(((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRKÓs		tInterfaceVectorcBsGeZdid„Zid„Zd„Zd„Zd„Zd„ZRS(cCsPt|_d|_tjƒ|_i|_|rC|j||ƒnt|_dS(NR(	RtenabledRRRIR(tfrom_interfaceR.texpanded(Rt	interfaceRL((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRós			c
CsĐ|j|_xq|jƒD]c}|jtjjkr:qnd|jkrOqntj|ƒ}x|D]}|j|ƒqeWqW|rHxż|j	ƒD]Ž}xĽ|j
D]š}||j
kržqŁn|j
|}xo|jD]d}	tj|	ƒ}|j|jkr|j
|_n|j|jkr,|j
|_n|j|ƒqŐWqŁWq“Wnx)|jƒD]}
t|
|jƒrUqUqUWx)|jƒD]}t||jƒrqqWx)|jƒD]}t||jƒr­q­q­WdS(Nt	dontaudit(Rtavrulest	rule_typeRtAVRuletALLOWRtavrule_to_access_vectorsRJttypeattributesRLtcopyR/R	R0trolesR:R(t	typerulesRCtinterface_callsRG(
RRaRLtavruletavsR't
typeattributeRMtattr_vecRUR7RBRE((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyR_s>

cCs/t||jƒdkrn|jj|ƒdS(Ni(R6R(RRJ(RR'((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRJ8scCsNg}|jd|jƒx$|jD]}|jt|ƒƒq$Wdj|ƒS(Ns[InterfaceVector %s]s
(tappendRRtstrR(RtsR'((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt	to_string>s
cCs
|jƒS(N(R(R((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt__str__EscCsd|j|jfS(Ns<InterfaceVector %s:%s>(RR^(R((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRHsN(	RRR9RR_RJRtRuR(((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyR]ňs4			tInterfaceSetcBs€eZdd„Zd„Zd„Zd„Zd„Zd„Zid„Z	did„Z
d„Zd	„Zd
„Z
d„ZRS(
cCs(i|_i|_g|_||_dS(N(t
interfacesttgt_type_mapttgt_type_alltoutput(RRz((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRMs			cCs$|jr |jj|dƒndS(Ns
(Rztwrite(RRr((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytoSs	cCsäxÝt|jjƒdd„ƒD]˝}|jd|jƒxJt|jjƒdd„ƒD]*}|jd|jtj|jfƒqXW|jdƒt|j	j
ƒƒ}x1|D])}|jdj|ƒƒ|jdƒqŻWqWdS(	NtkeycSs|jS(N(R(R<((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRXss[InterfaceVector %s cSs|jS(N(R(R<((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRZss%s:%s s]
RXs
(tsortedRwtvaluesR{RR(RRR	Rtto_listR(RRZtivtparamtavlR'((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytto_fileWs%%(

cCsˇd„}d}x|D]y}|d }|ddkr[|rL|j|ƒn||ƒ}q|r|jdƒ}tj|ƒ}|j|ƒqqW|rŠ|j|ƒn|jƒdS(NcSsű|dd!jƒ}t|ƒdks5|ddkrHtd|ƒ‚ntƒ}|d|_t|ƒdkrtdSx€|dD]t}|jdƒ}t|ƒdkrštd|ƒ‚ntƒ}|d|_tj|d|_||j	|j<qW|S(	Nii˙˙˙˙iiR]s)Syntax error InterfaceVector statement %st:s-Invalid param in InterfaceVector statement %s(
RPRQRRR]RRRtstr_to_fieldR	R((RSRTtifvtfieldR*R‚((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt	parse_ifvcs "	
	
i˙˙˙˙iRWRX(R9tadd_ifvRPRRYRJtindex(RRZR‰R‡RSR[R'((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyR\bs	

cCs||j|j<dS(N(RwR(RR‡((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRŠ…scCs­xŚ|jjƒD]•}tƒ}xP|jD]E}tj|jƒr^|jj|ƒtƒ}Pn|j|jƒq)Wx0|D](}|j	j
|gƒ}|j|ƒqyWqWdS(N(RwRR;RRR0RyRqR&Rxt
setdefault(RR‡R?R'R	R[((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyR‹ˆs		
cCs t||ƒ}|j|ƒdS(N(R]RŠ(RRaRLR‡((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyR&–scCsTx6tj|jƒ|jƒƒD]}|j||ƒqW|j|ƒ|jƒdS(N(R#R$Rwt	templatesR&texpand_ifcallsR‹(RtheadersRzRLti((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytadd_headersšs%
cCsqtj|ƒrft|dƒ}|t|jƒkr8dS|j|d}t|tƒr\|S|gSn|gSdS(Ni(RRRRQRDR9t
isinstancetlist(RtidRER RF((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt	map_paramĄs
c
Cs&|j|j|ƒ}|dkr%dS|j|j|ƒ}|dkrJdS|j|j|ƒ}|dkrodStjƒ}xB|jD]7}|j||ƒ}	|	dkrŻq…q…|j|	ƒq…Wt	|ƒdkrÖdSxI|D]A}
x8|D]0}x'|D]}|j
j|
|||ƒq÷WqęWqÝWdS(Ni(R•R/R9R0R"RR
R2tupdateRQRR&(
RR‡R'RER>R?Rt	new_permsR5R*R/R0R"((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt
map_add_avąs*


cCsD|dfg}|j|j}t|_xt|ƒdkr?|jdƒ\}}|j|j}||kr§x$|jD]}|j|||ƒqxW|jr§q+q§nx’|j	ƒD]„}	|	j
|jkră|jtdƒƒdSy||	j
}
Wn.t
k
r$|jtd|	j
ƒƒq´nX|j|
|	fƒq´Wq+WdS(Nii˙˙˙˙sFound circular interface classs#Missing interface definition for %s(R9RwRRR`RQtpopRR˜RltifnameR|RtKeyErrorRq(RRat
if_by_nametstackR‡tcurt
cur_ifcalltcur_ifvR'REtnewif((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pytdo_expand_ifcallsÍs*			
cCsyi}x3tj|jƒ|jƒƒD]}|||j<q%Wx6tj|jƒ|jƒƒD]}|j||ƒq[WdS(N(R#R$RwRRR˘(RRRœRRa((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRŽńs
%%N(RRR9RR|R„R\RŠR‹R&R‘R•R˜R˘RŽ(((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyRvLs			#					$((((((RRiR#RRRRRtsepolgeni18nRRR-R6R:RCRGRHRKR]Rv(((s9/usr/lib64/python2.7/site-packages/sepolgen/interfaces.pyt<module>s"	,	9			Z

OHA YOOOO