Revision 4.2.1 -------------- - Support string OIDs at one-liner API. - Code quality of libsmi2pysnmp tool improved, MIBs re-built. - SNMP-PROXY-MIB & SNMP-USER-BASED-SM-3DES-MIB added - v1arch bulkgen.py example added - Major overhawl for Python 2.4 -- 3.2 compatibility: + get rid of old-style types + drop string module usage + switch to rich comparation + drop explicit long integer type use + map()/filter() replaced with list comprehension + apply() replaced with */**args + dictionary operations made 2K/3K compatible + division operator made 2K/3K compatible + sorting function now operates on key + iterators returned by some funcs in py3k converted to lists + exception syntax made 2K/3K compatible + tuple function arguments resolved to scalars to become py3k compatible + BER octetstream is now of type bytes (Py3k) or still string (Py2k) Revision 4.1.16d ---------------- - Fix to SNMPv1 Trap PDU agentAddress setter shortcut method. Revision 4.1.16c ---------------- - Missing module import fixed in privacy subsystem Revision 4.1.16b ---------------- - Oneliner CommandGenerator can now optionally ignore non-increasing OIDs. - Default CommandResponder now skips non-compliant (Counter64) values when responding to a v1 Manager. - Fix to state information handling at CommandResponder app. - Fix to Twisted reactor shutdown condition. - Fix to distutils dependencies syntax. Revision 4.1.16a ---------------- - Extended Security Options (3DESEDE, AES192, AES256) privacy protocols implemented. - The error-indication codes moved from literals to objects for reliability and clarity - Fix to v1.TrapPDUAPI.getVarBinds() to address PDU component at the right position. - Fix to rfc1902.Bits initialization from named bits sequence. - Fix to MIB builder by-extension module filtering code to cope with .pyw files. - Internal caches structure improved. - Sync versions of oneliner apps split off async implementation for clarity. - Randomize initial in various numeric sequences. - MsgAndPduDsp expectResponse parameters passing reworked. - GetNext/GetBulk response processing logic moved to getNextVarBinds() - Changes towards performance improvement: + all dict.has_key() & dict.get() invocations replaced with modern syntax (this breaks compatibility with Python 2.1 and older). + introduce the MibInstrumControlle.readVarsFast() method (which skips the "testing" phase of MIB value readin) for dealing with internal configuration (LCD). + default debug.logger is now just a zero value instead of an object what saves big on frequent calls + SNMPv2-SMI columnar indices <-> index values convertion code optimized. + pre-compute and re-use some of ASN.1 structures. + avoid setting PDU defaults to save on unnecessary initialization. + skip ASN.1 types verification where possible. + at oneliner Command Generator, avoid looking up pure OID arguments at MIB as it's pointless but takes time. + cache MIB columnar objects instance ID <-> symbolic index representation mapping Revision 4.1.15a ---------------- - SNMP Proxy example added. - End-of-MIB condition detection reworked what caused backward incompatibility at v1arch GETNEXT API. Previous pysnmp versions used value = None in var-binds as returned by getVarBindTable() API method. This version uses rfc1905 exception values (v2c/v3) or pyasn1 Null (v1). Built-in GETNEXT/GETBULK apps now do not require user to track end-of-mib conditions anymore -- this is now done automatically. - CommandResponder API now supports async mode of operation. - SNMP exception values now exported from rfc1905 module, and made pretty printable. - Lexicographic walking mode is now supported at oneliner CommandGenerator. - ContextEngineId&ContextName parameters passing implemented at v3arch oneliner API. - Multiple instances of the same transport domain now supported. - Initial snmpEngineId value generation improved not to accidentally collide within an administrative domain. - MibTableColumn instances now build value-to-column-instance map to speedup by-value search. - SNMPv2-CONF::AgentCapabilities macro implemented. - The libsmi2pysnmp tool handles some more MACROs. - Void access control module implemented to let apps disabling [default] VACM. - Allow standard SNMP apps to choose access control method to use. - Twisted-based CommandResponder example added. - Fix/rework of Twisted GETNEXT/BULK CommandGenerator callback API to make it simpler and uniform with other CommandGenerators - Fix to SNMPv3 security module to store peer SNMP engine timeline only if taken from an authenticated message. Prior to this fix SNMP engine was not been protected from spoofing. - Fix to $SMIPATH initialization at build-pysnmp-mib. - Fix to maxSizeResponseScopedPDU calculation. - Fix to Next/Bulk CommandGenerators to catch a non-increasing OID error condition (what prevents looping). - Fix to Opaque value tagging at rfc1155.Opaque type. - Fix to handle (fail gracefully) zero-length user password. - Fix to SNMP error propagation at Twisted driver (SF tracker ID #3054505). - Fix to Agent-role snmpEngineId discovery procedure that allows authenticated ReportPDU generation. - Fix to SNMPv1 PDU handling at CommandResponder & NotificationReceiver apps. - Fix to CommandResponder app to skip Counter64 SMI values when responding to SNMPv1 Manager. - Fix to protocol translator code (rfc2576) to handle Counter64 type in v2c-to-v1 PDU translation. - Fix to non-response var-binds translation in rfc2576.v2ToV1(). - Fix to wrong exceptions used in pysnmp/entity modules. - Fix to noauth/nopriv security module so that it would not crash SNMP engine if called accidentally. - Fix to CommandResponder not to return out-of-range errorIndex along with genErr - Fix to GETBULK CommandResponder to do a by-column MIB walk, not by-raw. - Fix to getVarBindTable() API function logic. - Fix to example Manager scripts to use errorIndex when available. - Fix to dummy encryptData()/decryptData() API - Fix to oneliner GETBULK table collection code to make it stripping uneven rows off table tail. Revision 4.1.14a ---------------- - Fix to maxSizeResponseScopedPDU calculation at USM security module: now more precise and robust against screwed values on input. - Fix to MIB loading logic that used to load same-name modules at disticts search paths on each loadModules() call. - Fix to AsynsockDispatcher.runDispatcher() to make use of optional non-default select() timeout value. - AbstractTransportDispatcher now allows user application registering multiple timer callbacks each with dedicated call period. - Asynsock mainloop default idle period reduced to 0.5 sec for better timer resolution. - Fix to SNMPv1->SNMPv2c error status handling at proxy module. This defect may have caused an infinite loop on a multiple var-bind SNMPv1 GetNext operation. - Fix to contextName processing at config.addV1System -- typo rendered passed contextName not committed into LCD. - Fix to unknown ContextName exception handling at CommandResponder App. - config.addVacmUser() now accepts an optional contextName what makes it usable for configuring multiple contextName-bound bases of Managed Objects to SnmpEngine. - MP pending states cache management re-worked so that SNMP engine will now handle an unlimited number of pending request/responses. - Fix to SNMP discovery procedure: include ContentName in SNMP discovery messaging. - Many fixes to AES crypto code that makes it actually working. - Fix to SNMPv2-SMI createUndo operations. - Fix to INFORM sending error handling at oneliner. - Fix to mismatched response PDU handling at CommandGenerator application. - Debug category 'app' (for Application) added to facilitate Standard SNMP Applications debugging. - The retryCount semantic of CommandGenerator application changed to include sole retries and do not include initial request. Thus, retryCount=1 will now send up to two packets, not just one as it used to be. - Debugging printout now escapes non-printable characters. Revision 4.1.13a ---------------- - UDP over IPv6 transport implemented. - Fix to MIB tree walking code that used to fail on table columns where indices have identical leading parts. - SNMPv1/v2c snmpCommunityTransportTag-based imcoming message filtering implemented (rfc2576). Revision 4.1.12a ---------------- - API versioning retired (pysnmp.v4 -> pysnmp). - MIB loading mechanics re-designed to allow ZIP import. - MIB loader supports code objects (py[co]) - Installer now uses setuptools for package management whenever available. - The libsmi2pysnmp tool improved to build constraints of more than 256 items (Python has a limit on the number of function params). - Missing SNMPTrap PDU API implemented at proto.api.v2c, RFC2576 proxy code reworked. - Fix to sysUpTime OID at SNMPv2 TRAP PDU. Revision 4.1.11a ---------------- - Twisted integration implemented. - Attempt to use hashlib whenever available. - Fix to oneliner Manager code on < Python 2.4. - Let NotificationReceiver and CommandResponder Apps browsing request details (transport information at the moment) at SNMP engine. - Fix to config.addV1System() to allow multiple systems to co-exist in LCD. - Fix to wrongly succeeding user-parameters-by-community-name searching code in rfc2576 processIncomingMsg() method. - Do sanity checking on PYSNMP_MODULE_ID, Groups and Notifications in libsmi2pysnmp (SF bug #2122489). - Fix to oneliner Notification Originator that sometimes used to send multiple requests at once. - Oneliners LCD names generation code reworked to avoid accidental clashes. - Fix and re-work of sysUpTime value management in LCD. - Fix to pending inform request data caching in mpmod/rfc2576.py -- previous code led to cache data corruption on multple outstanding requests. - In SMI configuration wrapper functions, catch access to non-configured entries and raise an exception. - Allow multuple callback timer functions in all transport dispatchers. - Fix to libsmi2pysnmp code to preserve more underscored object names and to guess the right type between indistinguishable ObjectGroup & NotificationGroup - Fix to MibScalarInstance value setting logic - previous code failed when modifying the same OID multiple times within a single SET operation. - Minor usability improvements to tools/build-pysnmp-mib. - Made MIB objects unexport feature operational. Revision 4.1.10a ---------------- - Internal MIB indexing method __indexMib() unmangled to facilitate setting up mutex there for sharing MIB stuff between threads. - Fixed broken IpAddress value handling in SET operation. - Broken MibBuilder.unloadModules() method now works. - Use getLabel() SMI object method when building MIB tree (in builder.py) in addition to direct attribute access for clearer object protocol. - The MIB building tools updated to match significantly improved smidump tool (libsmi version > 0.4.5). - Made libsmi2pysnmp tool optionally building MIB text fields into pysnmp MIB code (enabled by default) and MibBuilder conditionally loading them up (disabled by default). - SnmpEngine and MsgAndPduDispatcher constructors now optionally take msgAndPduDspr and mibInstrumController class instances respectively to facilitate these objects sharing within a process. - Unique integers, for various parts of the system, are now generated by a nextid.py module. This fixes possible issues with duplicate request IDs and handlers. - Built-in MIBs re-generated to include text fields. Revision 4.1.9a --------------- - UNSTABLE ALPHA RELEASE. - At onliner CommandGenerator, close transport on destruction to prevent socket leak. Implicit async transports registration at default asyncore's socket map has been disabled to avoid side effects. - Fix to rfc2576.v1ToV2c() PDU converter to perform noSuchName error code translation. - Fixes to Notification PDU convertion code at rfc2576 in part of snmpTrapOID handling. - Fix to nonRepeaters object use as sequence slicer (must be int) at cmdrsp.CommandResponderApplication - Make AsynsockDispatcher using its own socket map by default for threading safety. This will break asyncore apps that rely on pysnmp sharing the same socket map with them. A solution would be to either set asyncore map to pysnmp (AsynsockDispatcher.setSocketMap()) or pass pysnmp map (AsynsockDispatcher.getSocketMap()) to asyncore. - Fix to response timeout roundup bug at CommandGenerator and NotificationOriginator code. - Oneline configuration classes made hashable to prevent memory leaks when committing them into CommandGenerator/NotificationOriginator internal repository. - Security information is now released properly in all MP modules. This might fix a significant memory leak. - Typo fix to rfc3411 confirmed class PDU members. Revision 4.1.8a --------------- - UNSTABLE ALPHA RELEASE. - SMI/dispatcher timeout convertion multiplier is actually 100 (1/100 sec) rather than 1/1000. This fix affects timeouts specified through SMI. - __repr__() implemented for UdpTransportTarget, CommunityData, UsmUserData in oneliner module. - Automatically initialize table index values on table management operations (SF bug ID #1671989). - Fix to carrier code: ignore BADFD socket error as it may happen upon FD closure on n-1 select() event. - Fix to MibBuilder.setMibPath() to preserve previously loaded modules intact. Otherwise loadModules() called after setMibPath() might fail with 'MIB file not found in search path' exception. - Fix to oneliner classes that now invoke unconfiguration methods on destruction. This might have caused memory leaks. - Automatically initialize SNMP-USER-BASED-SM-MIB::UsmUserSecurityName columnar object instance on creation, as stated in DESCRIPTION (SF tracker ID #1620392). - Fix to USM timeframe arithmetics (SF bug #1649032). - VACM shortcuts merged into universal add/delVacmUser() to let notifications and requests to co-exist for the same user. - At oneliners, build LCD tables keys from a hashed mix of input parameters to make sure these automatic entries won't interfere or exceed constraints on keys values. - Made use of notificationType parameter of the sendNotification method in NotificationOriginator applications. This parameter used to be ignored in the past. Note, that previously used (and ignored) syntax has been changed in an incompatible way. - Allow plain Python values in setCmd() and sendNotification() methods in CommandGenerator and NotificationOriginator applications respectively. - Multi-target oneliner API-based example script added. - Ignore more socket errors in datagram-type async socket code. - AES cipher now supported (rfc3826). - Fix to messed up tagIDs of noSuchInstance and noSuchObject types. - SET Command Responder fixed to obscure access to non-existing variables by returning notWritable error (SF bug #1764839). - AsynsockDispatcher.setSocketMap() method added to facilitate pysnmp transport integration into third-party asyncore-based applications. - Fix to errorIndex generation at CommandResponder application, the value should be a one-based. Revision 4.1.7a --------------- - UNSTABLE ALPHA RELEASE. - Low-level debugging facility implemented. - Support UdpTransportTarget timeout and retries parameters in oneliner API. - Fix to snmpTrapOID construction at ...proxy.rfc2576.v1ToV2() function. - Fix to MibViewController.getNodeName() to take MIB module name into account (SF bug #1505847). - Do explicit check for Counter32,Unsigned32,TimeTicks,Counter64 value types in MibTableRow index convertion and in TextualConvention.prettyPrint() methods (SF bug #1506341). Handle Bits in indices as RFC2578 suggests. - Apply read-create column status to libsmi2pysnmp-generated code whenever MIB text specifies that (SF bug #1508955). - Honor and apply DISPLAY-HINT specification when building TextualConvention class at libsmi2pysnmp. - Managed Objects Instances files (smi/mibs/instances/) are now double-underscore prefixed to make them imported explicitly by these prefixed names. They used to be imported as a side-effect of Managed Objects files import what is way too hackerish. - The libsmi2pysnmp now supports future libsmi bugfix that would generate "ranges" subtree along with the legacy and ambiguous "range" one. - SMI support for fixed-length string indices implemented (SF bug #1584799, #1653908). - Managed Object Instances may now have smiRead, smiWrite, smiCreate methods to support specific value mangling. These methods, if present, would be invoked from SNMP [Agent] core instead of conventional clone() method. The reason is to separate trivial value duplication from specific Instance value mangling that may have Agent-specific side effects (such as RowStatus). - MIB table row destruction now works (SF bug #1555010). - LCD unconfiguration functions for oneliners implemented (SF bug #1635270). - unloadModules() and unexportSymbols() implemented at MibBuilder - Notification type PDU proxy code fixed to produce symmetrical convertion. - Various SNMP engine-internal caches expiration implemented. - SMI-level access control now takes effect only if AC object is passed to MIB instrumentation API. - LCD management code now uses generic MIB instrumentation features. - Fix to oneliner manager code to have individual UdpSocketTransport instance per each SnmpEngine. Multithreaded apps might fail otherwise. (SF bug ID #1586420). - Exclude the PYSNMP_MODULE_ID symbol from MIB view index, as it may get resolved into OID label instead of actual MIB object name. - Memory leak fixed in indices.OidOrderedDict implementation. - Fix to VACM shortcuts to let notifications and requests to co-exist for the same user otherwise. - Fix to ...oneliner.cmdgen.UsmUserData to support non-default ciphers. - USM now uses local notion of snmpEngineBoots/Time when authoritative and cached estimate otherwise. Also, a security fix applied to to USM time-window verification (SF bug #1649032). - Fix to notification objects resolution code at NotificationOriginator.sendNotification() - Do not raise securityLevel for USM error reports that lacks user information, as these reports could never be ciphered (SF bug #1624720). - Non-default BULK PDU params now actually applied. - SnmpEngineID default value generation algorithmic function changed to allow multiple SNMP engines running on the same host. - Documentation updated. - A handful of minor fixes applied (SourceForge tracker IDs #1537592, #1537600, #1537659, #1548208, #1560939, #1563715, #1575697, #1599220, #1615077, #1615365, #1616579). Revision 4.1.6a --------------- - UNSTABLE ALPHA RELEASE. - pysnmpUsmSecretAuthKey and pysnmpUsmSecretPrivKey length increased up to 256 octets. There seems no limit on this in RFC, though. - A workaround for probably broken Agents: SNMPv3 Manager code defaults ContextEngineId to SecurityEngineId whenever ContextEngineId is not reported by authoritative SNMP engine on discovery. - Use empty PDU in engine-discovery report at mpmod/rfc3412.py. - MibBuilder.loadModules() now fails on missing MIB files. - MibBuilder.exportSymbols() now accepts unnamed objects (likely Managed Objects Instances) - SNMPv2-SMI.MibScalarInstance objects now support create*/destroy* Management Instrumentation methods to pass Columnar Object creation and removal events. MibTableColumn class invoke these methods accordingly. - Fix to AsynNotificationOriginator.asyncSendNotification() callback formal parameters - Initial VACM configuration implemented according to rfc3415 Appendix 1 - tools/buildmibs.sh split-up and re-implemented as tools/build-pysnmp-mib and pysnmp-mibs/tools/rebuild-pysnmp-mibs for better usability. These and libsmi2pysnmp scripts made installable. - Types/Notifications/Groups exportSymbols() call chunking implemented in tools/libsmi2pysnmp - Initial values specified to pyasn1 types to comply with latest pyasn1 API. - Documentation improved - Minor fixes towards Python 1.5 compatibility Revision 4.1.5a --------------- - UNSTABLE ALPHA RELEASE. - Multi-lingual SNMP Trap/Inform Applications completed; examples added - SMI model re-designed to make a clear separation between Managed Objects and their specification (AKA Agent and Manager side) - SNMP SET Application support completed - Minor, though backward incompatible, changes to one-liner API - Many bugfixes Revision 4.1.4a --------------- - UNSTABLE ALPHA RELEASE. - SHA-based authentication fixed and privacy implemented - ...oneliner.cmdgen.UsmUserData constructor now takes authProtocol and privProtocol parameters in a backward incompatible manner. Revision 4.1.3a --------------- - UNSTABLE ALPHA RELEASE. - rfc3413 applications API changes (related to callback function behaviour). - TransportDispatcher now provides "jobs" interface to clients for better control of dispatcher's execution. - Many minor fixes. Revision 4.1.2a --------------- - UNSTABLE ALPHA RELEASE. - Top-level application classes renamed into longer, self descripting names for clarity. - CommandResponder & NotificationOriginator applications now uses stand-alone SnmpContext for application registration. - Many minor fixes (inspired by testing on WinXP) Revision 4.1.1a --------------- - UNSTABLE ALPHA RELEASE. - SNMPv3 code first published - SNMP engine and applications implemented on library level - Major re-design towards SNMPv3-style API. Release 4.0.2a -------------- - Adopted to slightly changed asyncore API (as shipped with python 2,4) Release 4.0.1a -------------- - Minor bug/typo fixes, mostly in example/ scripts. Release 4.0.0a -------------- - UNSTABLE EARLY ALPHA RELEASE. - Major re-design and re-implementation. - Rudimental API versioning implemented to let incompatible package branches to co-exist within the same Python installation. - SMI framework designed and implemented. This framework provides 1) various access to MIB data 2) a way to implement custom MIB instrumentation objects. There's also a tool for building SMI classes from libsmi(3) output (smidump -f python). - ASN.1 subtyping machinery implemented. Now dynamic ASN.1 instances subtyping and quering becomes available. Previously, this has been done through Python classes inheritance what proved to be a wrong concept. - ASN.1 codecs framework re-designed and re-implemented aimed at a more consistent design and better performance. Highlights include abstract codec interface and serialized data caching (at encoder). - Asn1Item constraints machinery re-implemented based on Mike C. Fletcher's design and code. Now various constrains are implemented as stand-alone objects serving interested Asn1Object derivatives through some abstract protocol (that's probably the Decorator design pattern). - ASN.1 tagging facility re-implemented along the client-server design pattern. Besides this seems to be a more appropriate design, it allows an easier way for dynamic subtyping.