+ :iUcs0^RIt^RIt^RIHt^RIHt^RIHtRtRtRt!RR 4t !R R ] 4t !R R ] 4t ^RI H t /t!RR] 4t!RR] 4t!RR] 4t!RR] 4t!RR4t!RR4t!RR4tR#)iN) refpolicy)access)utilcs^RIp^RIp\RR4p\VP 4P 4^,4pVP VPVP4V, 4pVPRV4pVPRV4pVPRRRR WV.VPR 7P4^,p\P'd\P!V4pV#) 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. Nz /proc/uptimeZrz%xz%X/sbin/ausearch-m5AVC,USER_AVC,MAC_POLICY_LOAD,DAEMON_START,SELINUX_ERRz-tsZstdout) subprocesstimeZopenZfloatZreadsplitZcloseZ localtimeZstrftimePopenPIPE communicaterPY3 decode_input)rr ZfdZoffZsZbootdateZboottimeoutputs 3/usr/lib/python3.14/site-packages/sepolgen/audit.pyget_audit_boot_msgsrs NC B bggioo"#CHH tyy{S()A}}T1%H}}T1%H   /7npuwK%/__66AkmAGF xxx""6* Mcs^RIpVP.ROVPR7P4^,p\P 'd\P !V4pV#)rNr)rrrrr r r rrrrr rget_audit_msgsr2sS   o%/__66AkmAGF xxx""6* Mrcs^RIpVPR.VPR7P4^,p\P 'd\P !V4pV#)zObtain all of the avc and policy load messages from /bin/dmesg. Returns: string contain all of the audit messages returned by dmesg. Nz /bin/dmesgrrrrrget_dmesg_msgsrAsT    |n%/__66AkmAGF xxx""6* Mrcs0a]tRt^PtoRtRtRtRtVtR#) AuditMessagezBase 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. cs WnRVnR#N)messageheaderselfr&&r__init__ZAuditMessage.__init__Ws  rc sVF\pVPR4p\V4^8wdVR,R8Xd W nR#K=V^,R8XgKMV^,VnR# R#)zParse 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. =:NiNzaudit(Nmsg)r lenrrrecsr#fields&& rfrom_split_stringZAuditMessage.from_split_string[sXCYYs^F6{ar7h&"%KayE!$Qi r)rrN __name__ __module__ __qualname____firstlineno____doc__r!r)__static_attributes____classdictcell__Z __classdict__@rrrPs rrcs*a]tRt^ptoRtRtRtVtR#)InvalidMessagezClass representing invalid audit messages. This is used to differentiate between audit messages that aren't recognized (that should return None from the audit message parser) and a message that is recognized but is malformed in some way. c0\PW4R#Nrr!rr rr!ZInvalidMessage.__init__vd,rNr+r,r-r.r/r!r0r1r2r3rr4r4ps --rr4cs0a]tRt^ytoRtRtRtRtVtR#) PathMessagez!Class representing a path messagec>\PW4RVnR#r)rr!pathrr rr!ZPathMessage.__init__{sd, rcs\PW4VFHpVPR4p\V4^8wdK&V^,R8XgK6V^,^RVnR# R#)r"r=N)rr)r r$r=r%r(rr)ZPathMessage.from_split_stringsV&&t2CYYs^F6{aayF""1IaO  r)r=Nr*r2r3rr;r;ys+  rr;cs<a]tRt^toRtRtRtRtRtRt Vt R#) AVCMessagea3AVC 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. ioctlcmd - ioctl 'request' parameter 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 cs2\PW4\P!4Vn\P!4VnRVnRVnRVnRVn RVn .Vn RVn RVn \PVnR#)rTN)rr!rSecurityContextscontexttcontexttclasscommexer=nameaccessesdenialioctlcmd audit2whyTERULEtyperr rr!ZAVCMessage.__init__sud,!113 !113        $$ rcsbRpTpV\V4^, 8Xd\RVP,4hV\V48d=W,R8XdRpM,VPP W,4V^,pKLV'g\RVP,4hV^,#)F#AVC message in invalid format [%s] Z}T)r$ ValueErrorrrGappend)rr&ZstartZ found_closeis&&& rZ__parse_accessZAVCMessage.__parse_accesss  TQ CdllRS S#d)mw#~"  MM  )AACdllRS S1u rcs4\PW4RpRpRpRp\\V44EFpW,R8XdVP W^,4pRpK-W,R8XdRVnW,P R4p\V4^8wdKjV^,R8Xd'\P!V^,4Vn RpKV^,R8Xd'\P!V^,4Vn RpKV^,R8XdV^,Vn RpKV^,R8XdV^,^RVn EKV^,R 8XdV^,^RVn EK6V^,R 8XdV^,^RVnEKXV^,R 8XgEKi\V^,^4VnEK V'dV'dV'd V'g\#R VP$,4hVP'4R # \"dEKi;i)FZ{TZgrantedr"rArBrCrDrErFrIrMNr>)rr)Zranger$_AVCMessage__parse_accessrHr rr@rArBrCrDrErFZintrIrNranalyze)rr&Z found_srcZ found_tgtZ found_classZ found_accessrPr's&& rr)ZAVCMessage.from_split_strings&&t2    s4y!Aw#~''!e4# I%# W]]3'F6{aayJ& ) 9 9&) D  j( ) 9 9&) D  h&$Qi " f$"1IaO e#!!9Qr?f$"1IaO j($'q 2$6DM9"@ LCdllRS S  "sH HHcs>VPP4pVPP4p\VP4p.VnW!VP V3\P49d*\W!VP V3,wVn VnR #\P!W!VP VP4wVn VnVP\P8Xd\PVn VP\P8Xd\RV,4hVP\P 8Xd\RV,4hVP\P 8Xd\RVP ,4hVP\P"8Xd,\RRP%VP4,4hVP\P&8Xd \R4hVP\P(8XEdVP .VnVPP*VPP*8wdTVP P-RVPP*,RVPP*,34VPP.VPP.8wdoVPP.R8wdTVP P-RVPP.,RVPP.,34VPP0VPP08wdTVP P-R VPP0,R VPP0,34VPVP 3\W!VP V3&R #) zInvalid Target Context %s zInvalid Source Context %s zInvalid Type Class %s zInvalid permission %s Z z&Error during access vector computationz user (%s)Zobject_rz role (%s)z level (%s)N)rBZ to_stringrAZtuplerGdatarCavcdictZkeysrLrJrRZNOPOLICYrKZBADTCONrNZBADSCONZBADPERMZjoinZ BADCOMPUTEZ CONSTRAINTZuserrOroleZlevel)rrBrAZ access_tuples& rrRZAVCMessage.analyzes==**,==**,dmm,   \ :glln L#*H \+Z#[ DIty#,#4#4XVZVcVc#d DItyyyI...%,, yyI--- !>!IJJyyI--- !>!IJJyyI--- !:T[[!HIIyyI--- !:SXXdmm=T!TUUyyI000 !IJJyyI000"iiM ==%%););;II$$kDMM4F4F&F VZVcVcVhVhHh%ij==%%););; @R@RV`@`II$$kDMM4F4F&F VZVcVcVhVhHh%ij==&&$--*=*==II$$lT]]5H5H&H,Y]YfYfYlYlJl%mnHL SWS\S\G]GXlC Dr) rGrDrSrHrErIrFr=rArCrBrLN) r+r,r-r.r/r!rQr)rRr0r1r2r3rr?r?s&: %,+Z ^ ^rr?cs*a]tRtRtoRtRtRtVtR#)PolicyLoadMessageiz6Audit message indicating that the policy was reloaded.cr5r6r7rr rr!ZPolicyLoadMessage.__init__ r8rr9Nr:r2r3rrVrVs@--rrVcs0a]tRtRtoRtRtRtRtVtR#)DaemonStartMessagei#z3Audit message indicating that a daemon was started.cr<FN)rr!auditdrr rr!ZDaemonStartMessage.__init__%sd, rcsP\PW4RV9d RVnR#R#)rYTN)rr)rYrr&r rr)Z$DaemonStartMessage.from_split_string)s$&&t2 t DK r)rYNr*r2r3rrWrW#s=rrWcs6a]tRtRtoRtRtRtRtRtVt R#)ComputeSidMessagei/anAudit 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. cs\PW4\P!4Vn\P!4Vn\P!4VnRVnR#r)rr!rr@invalid_contextrArBrCrr rr!ZComputeSidMessage.__init__9sHd,(88:!113 !113  rcs\PW4\V4^ 8d \R4h\P !V^,4Vn\P !V^,PR4^,4Vn\P !V^,PR4^,4Vn V^ ,PR4^,Vn R# \R4h;i)i z;Split string does not represent a valid compute sid messager"N) rr)r$rNrr@r\r rArBrCrZr rr)Z#ComputeSidMessage.from_split_string@s&&t2 t9r>Z[ [ \#,#<#>rr[csfa]tRtRtoRtRRltRtRtRtRt Rt R t RR lt RR lt R tVtR #) AuditParseriQawParser for audit messages. This class parses audit messages and stores them according to their message type. This is not a general purpose audit message parser - it only extracts selinux related messages. Each audit messages are stored in one of four lists: avc_msgs - avc denial or granted messages. Messages are stored in AVCMessage objects. comput_sid_messages - invalid sid messages. Messages are stored in ComputSidMessage objects. invalid_msgs - selinux related messages that are not valid. Messages are stored in InvalidMessageObjects. policy_load_messages - policy load messages. Messages are stored in PolicyLoadMessage objects. These lists will be reset when a policy load message is seen if AuditParser.last_load_only is set to true. It is assumed that messages are fed to the parser in chronological order - time stamps are not parsed. cs2VP4WnR#r6)_AuditParser__initializelast_load_only)rrar rr!ZAuditParser.__init__gs ,rcsh.Vn.Vn.Vn.Vn.Vn/VnRVnR#rX)avc_msgscompute_sid_msgs invalid_msgspolicy_load_msgs path_msgs by_headercheck_input_filer]r^rZ __initializeZAuditParser.__initializeks7 " " %rcs VP4Uu.uFq"PR4NK ppVFpRpVR8XgVR8XgVR8Xd\V4pRpM^VR8Xd\V4pRpMIVR8XgVR8Xd\ V4pRpM-VR 8Xd\ V4pRpMVR 8Xd\ \4pRpV'gKRVnXPV4Vu# R #uupi \d\T4pTu#i;i) u…Fzavc:z message=avc:z msg='avc:Tzsecurity_compute_sid:ztype=MAC_POLICY_LOADz type=1403z type=AVC_PATHztype=DAEMON_STARTN) r Zstripr?r[rVr;rWZlistrhr)rNr4)rlineZxZrecrPZfoundr#s&& rZ __parse_lineZAuditParser.__parse_lines59JJLALqww)*LAAEF{a>1Q+5E &--'-,,[0@'-o%!$'))(.u(,%/))#. 125B."/(.C /sC!C&&DDcsVPV4pVfR#\V\4'd%VP'dVP 4EM-\V\ 4'dQVP 'd#VP'dVP 4VPPV4M\V\4'dVPPV4M\V\4'dVPPV4Mc\V\4'dVPPV4M1\V\4'dVP PV4VP"R8wdfVP"VP$9d/VP$VP",PV4R#V.VP$VP"&R#R#)Nr)_AuditParser__parse_line isinstancerVrar`rWrYrerOr?rbr[rcr4rdr;rfrrg)rrir#&& rZ__parseZAuditParser.__parsesZ% ;  c, - -"""!!# / 0 0 zzzd111!!#  ! ! ( ( - Z ( ( MM  % . / /  ! ! ( ( - ^ , ,    $ $S ) [ ) ) NN ! !# & :: zzT^^+szz*11#6.1Uszz* rcsTVPP4Fp.pRpVFFp\V\4'dTpK\V\4'gK5VP V4KH \ V4^8gKeV'gKoVFpVPVnK K R#r6)rgZvaluesrkr;r?rOr$r=)rZvalueavcr=r#Zas& rZ__post_processZAuditParser.__post_processs}^^**,ECDc;//DZ00JJsO  3x!|A!YYAF-rc s*VP4pV'd$VPV4VP4pK+VP'g6\PP R4\P !^4VP4R#)zhParse the contents of a file object. This method can be called multiple times (along with parse_string).zNothing to do N)Zreadline_AuditParser__parserhsysZstderrZwriteZexit_AuditParser__post_process)rinputrirlr parse_fileZAuditParser.parse_filesa~~ LL >>#D$$$ JJ  . / HHQK rc s|VPR4pVFpVPV4K VP4R#)zParse a string containing audit messages - messages should be separated by new lines. This method can be called multiple times (along with parse_file).Z N)r rnrp)rrqZlinesZlr(r parse_stringZAuditParser.parse_strings3 D!A LLO rNc s \P!4pVPF^pV'dVPV4'gK$VP VP P VP P4K` V#)a/Return RoleAllowSet statements matching the specified filter Filter out types that match the filer, or all roles Params: role_filter - [optional] Filter object used to filter the output. Returns: Access vector set representing the denied access in the audit logs parsed by this object. )rZ RoleTypeSetrcfilteraddr\rUrL)rZ role_filterZ role_typesZcsr(rto_roleZAuditParser.to_rolesc'') ''B+"4"4R"8"8r11668J8J8O8OP(rc s\P!4pVPEF pVPR8wd V'dKV'dVP V4'gK@\P !VP PVPPVP.VP,4pVPVn VPVnVP'd?\P!4pVPVP4WeP R&VP#WTR7EK# V#)a"Convert the audit logs access into a an access vector set. Convert the audit logs into an access vector set, optionally filtering the restults with the passed in filter object. Filter objects are object instances with a .filter method that takes and access vector and returns True if the message should be included in the final output and False otherwise. Params: avc_filter - [optional] Filter object used to filter the output. Returns: Access vector set representing the denied access in the audit logs parsed by this object. TZioctl)Z audit_msg)rZAccessVectorSetrbrHrtZ AccessVectorrArLrBrCrGrSrIrZXpermSetruZxpermsZadd_av)rZ avc_filterZ only_denialsZav_setrmZavZ xperm_sets&&& r to_accessZAuditParser.to_accesss"'')==CzzT!l!2!23!7!7((#,,*;*;S\\=N=N),*57:||*DE((((<<< ) 2 2 4IMM#,,/)2IIg& b 0!" r)rbrgrhrcrdrarfre)Fr6)NT)r+r,r-r.r/r!r`rjrnrprrrsrvrwr0r1r2r3rr_r_Qs>*-&,H3J ' &##rr_c,a]tRtRtoRtRtRtVtR#) AVCTypeFilteri$c<\P!V4VnR#r6reZcompileregexrr}r rr!ZAVCTypeFilter.__init__%ZZ& rcsVPPVPP4'dR#VPPVPP4'dR#R#TF)r}matchrArLrBrrmr rrtZAVCTypeFilter.filter(sI ::  CLL-- . . ::  CLL-- . .rr}Nr+r,r-r.r!rtr0r1r2r3rryry$s'rrycrx)ComputeSidTypeFilteri/crzr6r{r~r rr!ZComputeSidTypeFilter.__init__0rrcsPVPPVPP4'dR#VPPVPP4'dR#VPPVP P4'dR#R#r)r}rr\rLrArBrr rrtZComputeSidTypeFilter.filter3sm ::  C//44 5 5 ::  CLL-- . . ::  CLL-- . .rrNrr2r3rrr/s'rr)r|rorrrrrrrrr4r;Zselinux.audit2whyrJrTr?rVrWr[r_ryrr9rrrs( ,  @-\-, & O^O^b- -  > >DQQf    r