hhC0SrSSKrSSKrSSKJr SSKJrJrJrJ r J r J r J r J r SSKJr SSKJr SSKJr SSKJr SS KJr SS KJr SS KJrJrJrJr SS KJ r S r!Sr"Sr#Sr$Sr%Sr&"SS5r'Sr(\"\5"SS55r)"SS5r*g)zD Tools for automated testing of L{twisted.pair}-based applications. N)deque)EAGAINEBADFEINTREINVALENOBUFSENOSYSEPERM EWOULDBLOCKwraps) implementer)DatagramProtocol)EthernetProtocol) IPProtocol)RawUDPProtocol) _IFNAMSIZ _TUNSETIFF TunnelFlags_IInputOutputSystem) nativeStringc0[R"SU5$)z Pack an integer into a network-order two-byte string. @param n: The integer to pack. Only values that fit into 16 bits are supported. @return: The packed representation of the integer. @rtype: L{bytes} z>H)structpack)ns [/root/1688_scrapy/alibaba-scraper/venv/lib/python3.13/site-packages/twisted/pair/testing.py_Hrs ;;tQ c(X-[U5-U-$)a Construct an ethernet frame. @param src: The source ethernet address, encoded. @type src: L{bytes} @param dst: The destination ethernet address, encoded. @type dst: L{bytes} @param protocol: The protocol number of the payload of this datagram. @type protocol: L{int} @param payload: The content of the ethernet frame (such as an IP datagram). @type payload: L{bytes} @return: The full ethernet frame. @rtype: L{bytes} )rsrcdstprotocolpayloads r _ethernetr'.s& 9r(| #g --rcS[S[U5-5-S-[S5-[R"[R[ U55-[R"[R[ U55-n[ [R"SU55nUS- nUS-U-nUS- nUSS [R"S U5-US S-nX2-$) a Construct an IP datagram with the given source, destination, and application payload. @param src: The source IPv4 address as a dotted-quad string. @type src: L{bytes} @param dst: The destination IPv4 address as a dotted-quad string. @type dst: L{bytes} @param payload: The content of the IP datagram (such as a UDP datagram). @type payload: L{bytes} @return: An IP datagram header and payload. @rtype: L{bytes} sEs@rz!10HiN z!H ) rlensocket inet_ptonAF_INETrsumrunpackr)r#r$r&ipHeader checksumStep1carry checksumStep2 checksumStep3s r_ipr8Ds&  R#g,    &  & Q%    6>><+< = >   6>><+< = > " fh78M R E"V+u4M!F*M }v{{4??(23-OH  rc[U5[U5-[[U5S-5-[S5-nX2-$)aR Construct a UDP datagram with the given source, destination, and application payload. @param src: The source port number. @type src: L{int} @param dst: The destination port number. @type dst: L{int} @param payload: The content of the UDP datagram. @type payload: L{bytes} @return: A UDP datagram header and payload. @rtype: L{bytes} r)rr-)r#r$r& udpHeaders r_udpr<vsM& 3 S'  S\A     Q%    rc\rSrSrSrSr\"\S5r\ "\ S5r \"\ S5r \rSrSr\S 5r\S 5rS rS rS rSrg)Tunnelz An in-memory implementation of a tun or tap device. @cvar _DEVICE_NAME: A string representing the conventional filesystem entry for the tunnel factory character special device. @type _DEVICE_NAME: C{bytes} s /dev/net/tunz Resource temporarily unavailablezOperation would blockzInterrupted function callicXlX lSUlSUlSUl[ 5Ul[ 5Ul[ 5Ulg)z @param system: An L{_IInputOutputSystem} provider to use to perform I/O. @param openFlags: Any flags to apply when opening the tunnel device. See C{os.O_*}. @type openFlags: L{int} @param fileMode: ignored N) system openFlags tunnelMode requestedNamenamer readBuffer writeBufferpendingSignals)selfrArBfileModes r__init__Tunnel.__init__sC #! ' 7#grcRURURR-(+$)z` If the file descriptor for this tunnel is open in blocking mode, C{True}. C{False} otherwise. )rBrA O_NONBLOCKrIs rblockingTunnel.blockings NNT[[%;%;;<? ? )8}r)rErBrHrFrDrArCrGN)__name__ __module__ __qualname____firstlineno____doc__ _DEVICE_NAMEIOErrorr EAGAIN_STYLErlr EWOULDBLOCK_STYLEr EINTR_STYLErfrmrKpropertyrPrUr^rirn__static_attributes__rrr>r>s#L6#EFL -DE%!<=K ,&.==<<)"!1Frr>c0^[T5U4Sj5nU$)a` Wrap a L{MemoryIOSystem} method with permission-checking logic. The returned function will check C{self.permissions} and raise L{IOError} with L{errno.EPERM} if the function name is not listed as an available permission. @param original: The L{MemoryIOSystem} instance to wrap. @return: A wrapper around C{original} that applies permission checks. cp>TRUR;a[[S5eT"U/UQ70UD6$)NzOperation not permitted)rp permissionsrlr )rIargskwargsoriginals rpermissionChecker&_privileged..permissionChecker+s:   D$4$4 4%!:; ;.t.v..rr )rrs` r _privilegedrs# 8_// rc|\rSrSrSrSrSrSrSrSr Sr S r \ SS j5r S rS rSr\ S5rSrSrSrg )MemoryIOSystemi4z An in-memory implementation of basic I/O primitives, useful in the context of unit testing as a drop-in replacement for parts of the C{os} module. @ivar _devices: @ivar _openFiles: @ivar permissions: @ivar _counter: i rc20Ul0UlSS1Ulg)Nopenioctl_devices _openFilesrrOs rrKMemoryIOSystem.__init__Gs "G,rc<URUR5$)a  Get the L{Tunnel} object associated with the given L{TuntapPort}. @param port: A L{TuntapPort} previously initialized using this L{MemoryIOSystem}. @return: The tunnel object created by a prior use of C{open} on this object on the tunnel special device file. @rtype: L{Tunnel} )rfileno)rIports r getTunnelMemoryIOSystem.getTunnelLst{{}--rc X RU'g)z Specify a class which will be used to handle I/O to a device of a particular name. @param name: The filesystem path name of the device. @type name: L{bytes} @param cls: A class (like L{Tunnel}) to instantiated whenever this device is opened. N)r)rIrEclss rregisterSpecialDevice$MemoryIOSystem.registerSpecialDeviceYs" drNcXR;aFURnU=RS- slURU"XU5URU'U$[[S5e)a~ A replacement for C{os.open}. This initializes state in this L{MemoryIOSystem} which will be reflected in the behavior of the other file descriptor-related methods (eg L{MemoryIOSystem.read}, L{MemoryIOSystem.write}, etc). @param name: A string giving the name of the file to open. @type name: C{bytes} @param flags: The flags with which to open the file. @type flags: C{int} @param mode: The mode with which to open the file. @type mode: C{int} @raise OSError: With C{ENOSYS} if the file is not a recognized special device file. @return: A file descriptor associated with the newly opened file description. @rtype: L{int} rzFunction not implemented)r_counterrrlr )rIrEflagsmodefds rrMemoryIOSystem.openfsV0 == B MMQ M"&--"5d4"HDOOB If899rc|URURU5$![a [[S5ef=f)z Try to read some bytes out of one of the in-memory buffers which may previously have been populated by C{write}. @see: L{os.read} Bad file descriptor)rriKeyErrorrlr)rIrrgs rriMemoryIOSystem.reads> 8??2&++E2 2 8%!67 7 8 ;c|URURU5$![a [[S5ef=f)zr Try to add some bytes to one of the in-memory buffers to be accessed by a later C{read} call. @see: L{os.write} r)rrnrrlr)rIrdatas rrnMemoryIOSystem.writes> 8??2&,,T2 2 8%!67 7 8rc\URU g![a [[S5ef=f)zj Discard the in-memory buffer and other in-memory state for the given file descriptor. @see: L{os.close} rN)rrrlr)rIrs rcloseMemoryIOSystem.closes0 8# 8%!67 7 8s +chURUnU[:wa[[ S5e[ R"S[4-U5upVXdl XTl US[S- S-Ul [ R"S[4-URU5$![a [[S5ef=f)zo Perform some configuration change to the in-memory state for the given file descriptor. @see: L{fcntl.ioctl} rzRequest or args is not valid.z%dsHNs123) rrrlrrrrr2rrCrDrEr)rIrrequestrtunnelrErs rrMemoryIOSystem.ioctls 8__R(F j &"AB B]]6YL#8$?  #?Y]+f4 {{6YL0&++tDD 8%!67 7 8s BB1c SnSn[UUS[XBSUS9S9n[URR 55nUSR U5 X44$)a Write an ethernet frame containing an ip datagram containing a udp datagram containing the given payload, addressed to the given address, to a tunnel device previously opened on this I/O system. @param datagram: A UDP datagram payload to send. @type datagram: L{bytes} @param address: The destination to which to send the datagram. @type address: L{tuple} of (L{bytes}, L{int}) @return: A two-tuple giving the address from which gives the address from which the datagram was sent. @rtype: L{tuple} of (L{bytes}, L{int}) z10.1.2.3iaSrr)r#r$r&)r8r<listrvaluesr^)rIr]addresssrcIPsrcPort serialized openFiless rsendUDPMemoryIOSystem.sendUDPsd" W!*hG //12 ! $$Z0rc[X5$)a Get a socket-like object which can be used to receive a datagram sent from the given address. @param fileno: A file descriptor representing a tunnel device which the datagram will be received via. @type fileno: L{int} @param host: The IPv4 address to which the datagram was sent. @type host: L{bytes} @param port: The UDP port number to which the datagram was sent. received. @type port: L{int} @return: A L{socket.socket}-like object which can be used to receive the specified datagram. ) _FakePort)rIrhostrs r receiveUDPMemoryIOSystem.receiveUDPs&&&rrN)rprqrrrsrtrO_RDWRrNrTrKrrrrrirnrrrrr{r|rrrr4so H FJI- . "::< 8 8 8EE, >'rrc$\rSrSrSrSrSrSrg)riz A socket-like object which can be used to read UDP datagrams from tunnel-like file descriptors managed by a L{MemoryIOSystem}. cXlX lgr)_system_fileno)rIrArs rrK_FakePort.__init__s   rc^ ^ URRURRR 5n/m [ 5nU 4SjnXCl[5nURSU5 [5m T RSU5 URRURRnU[RR-(a)[5nURST 5 UR nOU 4SjnU[RR-(+n U (a U[ SnU"U5 T SSU$)a' Receive a datagram sent to this port using the L{MemoryIOSystem} which created this object. This behaves like L{socket.socket.recv} but the data being I{sent} and I{received} only passes through various memory buffers managed by this object and L{MemoryIOSystem}. @see: L{socket.socket.recv} c(>TRU5 gr)r[)r]r datagramss rcapture_FakePort.recv..captures   X &ri90r c.>TRUSSSS5$r)datagramReceived)rips r _FakePort.recv.. sB,?,?dD$-rNr)rrrrGrdrrraddProtorrCrrXrYrrbrc) rInbytesrreceiverrudpretherr dataHasPIrrs @@rrecv_FakePort.recvs||&&t||4@@HHJ #% '%,! UH% \ B||&&t||4?? +%%++ +$&E NN5" %$55    5 5 ; ;;<  ?D|GV$$r)rrN)rprqrrrsrtrKrr{r|rrrrs ,%rr)+rtr.r collectionsrerrnorrrrrr r r functoolsr zope.interfacertwisted.internet.protocolrtwisted.pair.ethernetrtwisted.pair.iprtwisted.pair.rawudprtwisted.pair.tuntaprrrrtwisted.python.compatrrcrrZr'r8r<r>rrrr|rrrs SSS&62&.WW.    .,/d