changes_agent++v3.txt

agentpp.com的免费的SNMP AGENT开发包. 本开发包来自 http://www.agentpp.com/ AGENT++ 版本v3.5.14 (包含VC7工程文件) AGENT++ W

  with SNMPv1/v2c in conjunction with the 
  SNMP-COMMUNITY-MIB.

* Added: BCC32 support.

Version 3.5.2: CHANGES since Version 3.5.1a
===========================================

* Improved: MibStaticTable: Added method to
  be able to set values internally. Less 
  memory consumption, because from now on
  only OID suffixes are stored.
* Fixed: In conjunction with AgentX++ 
  responses to GETBULK request could not
  meet RFC 1905 when a subagent region was
  last in the view.

Version 3.5.1a: CHANGES since Version 3.5h
=========================================

* request.cpp/v3_mib.cpp: Changed to be
  compatible with SNMP++v3.1.5.
* Fixed: AgentGen templates did not contain
  "using namespace". 

Version 3.5h: CHANGES since Version 3.5g
========================================

* Fixed: Degraded performance of multi-
  threaded agents on Win32 due to 
  inappropriate Windows API call in
  Synchronized::notify().

Version 3.5g: CHANGES since Version 3.5f
========================================

* Fixed: Persistency of USM users.

Version 3.5f: CHANGES since Version 3.5e
========================================

* Fixed: Inappropriate error codes returned by 
  USM MIB implementation.
* Improved: Flexible logging provided by
  Marty Janzen.

Version 3.5e: CHANGES since Version 3.5c
========================================

* Fixed: Missing synchronization in 
  RequestList::answer() accidentally 
  removed in version 3.5c.

* Added: Handling of unkown security model
  error in request.cpp.

Version 3.5c: CHANGES since Version 3.5a
========================================

* Added: Mib::delete_thread_pool() to allow
  cleaner shutdown of an agent.

* Fixed: Possible deadlock when more than max
  threads requests where processed 
  simultaneously.
* Added: is_idle() method in ThreadPool.
* Added: Makefile.hpux11
* Fixed: Some compilation errors.
* Fixed: snmpOutTooBigs was not incremented
  correctly. 
* Improved: GETBULK PDUs that would not fit 
  into a response will be trimmed if possible.


Version 3.5a: CHANGES since Version 3.5
=======================================

* Fixed: SimRowStatus behavior when RowStatus
  maximum access is READONLY.

* Fixed: Templates for AgentGen Pro generated
  agents (agent.cpp files under 
  agent++/agentgen) have been updated for new
  thread handling.


Version 3.5: CHANGES since Version 3.4.7b
=========================================

* Added: A multi-threaded agent now uses a
  thread pool which starts 4 threads by 
  default. Incoming requests are scheduled
  using these threads. This improves 
  performance and behavior when terminating
  an agent. Besides the threads' stack size
  can now be set.

* Added: SimMibTable and SimRowStatus. Both
  classes together now allow writing of
  tables with RowStatus column in config 
  mode. 

* Added: Timeout for MibGroup that can be
  used for the region timeout in AgentX 
  subagent registrations.

* Added: When AGENTPP_NAMESPACE is defined
  in agent++.h all AGENT++ and AgentX++ code
  will be part of the "Agentpp" namespace.
  By default namespace is only used for 
  __GNU__ compilers. 

* Added: Voter interface for MibTable. Voters
  are more than listeners. They listen for
  RowStatus changes and they then can accept
  or reject the requested change. An example
  implementation of such a voter is the
  MibTableSizePolicy class that can be used 
  to define the maximum sizes of tables in a
  single place.


Version 3.4.7b:  CHANGES since Version 3.4.7a
=============================================

* Fixed: Error index was not 0 when returning
  an authorizationError because of a 
  noSuchView, noGroupName, or noAccessEntry
  error. 

Version 3.4.7a:  CHANGES since Version 3.4.7
============================================

* Improved: sysUpTime for the WIN32 
  environment.

* Fixed: OrderedListCursor::overwriteNth was
  missing.

* Fixed: Notification filtering on trap OIDs
  did not work as defined in RFC 2573. 
  RFC 2573 also requires filtering on the
  object OIDs of the variable bindings in 
  the notification. This functionality has 
  been added to 
  snmpNotifyFilterEntry::passes_filter.
  The corresponding methods in Notification-
  Originator and nlmNotifyEntry have been
  removed. The implementations of the
  SNMP-NOTIFICATION-MIB and the 
  NOTIFICATION-LOG-MIB are affected by this 
  change.


Version 3.4.7:  CHANGES since Version 3.4.6
===========================================

* Improved: MibTable did use more memory as 
  needed for managing its rows. Each cell
  held its complete OID which leads to
  exponential memory usage for big tables 
  with long base OIDs. Now each MibLeaf that
  is a columnar object (i.e., element of a
  MibTableRow) will return the column sub-
  identifier only when MibLeaf::key() is 
  called. For example, the ifAdminStatus
  column will not return "1.3.6.1.2.1.2.2.1.7"
  anymore, instead it will return "7" only.
  In order to get the complete OID of a 
  MibLeaf (regardless whether it is a columnar
  object or not) the new method 
  MibLeaf::get_oid() should be used.

* Changed: Mib::init() now returns a boolean
  which will be always TRUE for Mib, but can
  be overridden in subclasses (i.e., 
  SubAgentXMib).

* Added: Implementation of the 
  NOTIFICATION-LOG-MIB.

* Fixed: MibTable::serialize and 
  MibTable::deserialize are now virtual.

* Fixed: List.h: Array<T>::trim(..)  


Version 3.4.6a:  CHANGES since Version 3.4.6
============================================

* Fixed: notification_originator.cpp: 285:
  Possible dead lock in multi-threaded agent
  when non-active row is accessed while traps
  are sent out.

Version 3.4.6:  CHANGES since Version 3.4.5a
============================================

* Fixed: StorageType did not check bad values
  correctly.

* Fixed: When in a multi-threaded agent SET 
  requests had been processed in parallel that
  shared some target objects which failed for
  at least one of the requests the request
  might not have been undone correctly.
  This behavior has now been fixed by locking
  all target objects of a SET request through
  the whole two phase process. Thus, SET 
  requests that share target objects are now
  processed sequentially.

* Fixed: mib_complex_entry.h was not protected
  against multiple #include.
 
* Note: Namespaces will be introduced in the
  next release.

Version 3.4.5a:  CHANGES since Version 3.4.5
============================================

* Fixed: Some (unused?) methods of the Array 
  template.

* Fixed: mib.cpp: Copy constructor of 
  MibTableRow did not set index of columnar
  objects correctly if columns had already a
  valid index OID set. This bug caused some 
  other problems (i.e., with ProxyForwarder) 
  which were hard to identify. 

* Fixed: mib.cpp: Memory leak when NOT using
  Array template (= #undef USE_ARRAY_TEMPLATE).

* Fixed: snmp_target_mib.cpp: The method
  snmpTargetParamsEntry::get_target_params did
  not handle SNMPv1 MP model correctly. This
  bug caused the ProxyForwarder to deny 
  forwarding of SNMPv1 requests.

* Added: Example configuration script for
  ProxyForwarder example.

Version 3.4.5:  CHANGES since Version 3.4.4a
============================================

* Changed Makefiles to use DES library instead
  RSAEURO. Thus, AGENT++v3.4.5/SNMP++v3.1 can
  be used freely, also for commercial use. 

Version 3.4.4a:  CHANGES since Version 3.4.4
============================================

* Fixed: On an attempt to set OID 0.0, agent 
  crashed due to an uninitialized read in 
  Mib::cleanup_set_request

Version 3.4.4:  CHANGES since Version 3.4.3
===========================================

* Improved: MibTableRow used double linked
  list for its elements. Now it uses an array
  which improves performance about 5% for
  GETNEXT/GETBULK requests and much more
  when adding rows. Reduces memory consumption
  as well.

* Fixed: Memory leak when destroying rows 
  via snmpRowStatus.

* Added: Support for binding on a specific
  IP address. Needs SNMP++v3.0.2b or later.


Version 3.4.3:  CHANGES since Version 3.4.2a
============================================

* Fixed: Problem with row creation and non-
  default columns that had valid initial values.
* Fixed: Validity flag of MibLeaf was not well
  defined and used. Clarified defintion and
  usage. (See also above bug fix.)
* Fixed: Chance of a crash when terminating
  agent while requests are currently processed.
* Fixed: Compilation problem with agent_copy.
  

Version 3.4.2a:  CHANGES since Version 3.4.2
============================================

* Fixed: Bug in MibTableRow::operator=.

* Fixed: Compilation problems without SNMPv3.

* Fixed: Notification timestamp is now set to 
  sysUpTime when sent by NotificationOriginator
  compiled without _SNMPv3.


Version 3.4.2:  CHANGES since Version 3.4.1c
============================================

* Added: ProxyForwarder class implements a
  proxy forwarder application as described in
  RFC 2573. It can be register with a Mib instance
  by calling Mib::register_proxy(..). The 
  constructor takes two arguments: 

  (1) The context engine ID contained in messages
  that should be forwarded by the proxy forwarder.
  If this parameter is the empty string "" then
  all messages whose context engine ID differs 
  from the agent's engine ID will be forwarded
  according to the configuration in the 
  SNMP-PROXY-MIB and SNMP-TARGET-MIB.

  (2) The PDU type that should be forwarded.
  The value all(0) matches all kind of PDU types.

  For more details see the proxy_forwarder
  example.

* Fixed: Memory leak in MibProxyV3. Please note:
  Use ProxyForwarder instead MibProxyV3 for new 
  proxy implementations.

* Fixed: Now sending report on messages with 
  unknown context.
  

Version 3.4.1c:  CHANGES since Version 3.4.1b
=============================================

* Fixed: (v3_mib.*): Entries added to the SNMP++ 
  usmUserTable during discovery did not appear in
  the AGENT++ USM MIB.

Version 3.4.1b:  CHANGES since Version 3.4.1a
=============================================

* Fixed: (v3_mib.cpp): Setting a usmOwnKeyChange 
  object with a zero length string caused a 
  segmentation fault.

* Fixed: (notification_originator.cpp):
  add_v1_trap_dest could not be called twice
  successfully.

* Fixed: Linking problems with NT using DLLs.

* Fixed: Compilation warnings on BSD Unix.

Version 3.4.1a:  CHANGES since Version 3.4.1
============================================

* Fixed: Opening of persistent storage files
  on NT was not done with binary mode set.

* Improved: Logging output is no faster, because
  text is only composed when output is needed.
  (Courtesy by Jochen Katz)

Version 3.4.1:  CHANGES since Version 3.4p
==========================================

* Fixed: (mib.cpp): process_commit_set_request,
  process_clean_up_set_request, process_undo_
  set_request did not check, whether target 
  object disappeared after preparing the set
  request. (Could have caused seg. fault)

* Fixed: (mib.cpp): GET request on not-accessible
  table column did returned NO_ACCESS instead
  NO_SUCH_OBJECT error.

* Fixed: (mib.cpp): Reworked a lot of things
  around the RowStatus state changes. 
  PLEASE NOTE: The RowStatus column is now set
  after all other subrequests for that row have
  been commited. The preparation of a set request
  now looks ahead. Thus, before an attempt to