Changes:
RELEASE 4.1.2 SEP-11-2003
- Removed an unintended dependency on the Crypt::Rijndael that would cause
SNMPv3 support to be unavailable and the "usm.t" tests to fail due to
a "strict subs" error in Net::SNMP::Security::USM module.
RELEASE 4.1.1 SEP-09-2003
- Corrected a misinterpretation of the "The AES Cipher Algorithm in the
SNMP's User-based Security Model" draft specification that lead to
the incorrect encoding and decoding of the last block of the message.
- The syntax of the get_entries() method was changed to expect the column
values to entered as full OBJECT IDENTIFIERs allowing the traversal of
conceptual rows in different tables which are indexed identically.
- The processing of the serialization of an OBJECT IDENTIFIER was optimized.
- The oid_lex_sort() function was updated to order OBJECT IDENTIFIER strings
padded with spaces as lexicographically greater than unpadded strings.
- An empty contextEngineId in a response message is now accepted during
the SNMPv3 discovery process.
- Corrected an argument validation error with the get_bulk_request()
method.
RELEASE 4.1.0 MAY-06-2003
- Working in conjunction with the Extended Security Options Consortium
(http://www.snmp.com/eso), support for additional privacy protocols
has been added to the SNMPv3 User-based Security Model.
"Extension to the USM to Support Triple-DES EDE in 'Outside' CBC Mode"
Reeder and Gudmunsson; October 1999, expired April 2000
http://www.snmp.com/eso/draft-reeder-snmpv3-usm-3desede-00.txt
"The AES Cipher Algorithm in the SNMP's User-based Security Model"
Blumenthal, Maino, and McCloghrie; October 2002, expired April 2003
http://www.snmp.com/eso/draft-blumenthal-aes-usm-04.txt
- A new method called get_entries() was added to allow the retrieval
of columns of a table entry using get-next-requests or get-bulk-requests.
- The argument "-maxrepetitions" was added to the get_table() method.
- Responses to SNMPv3 messages with non-default contextEngineIDs or
contextNames are now properly processed.
- The method var_bind_names() was added to retrieve an array of the
ObjectNames in the VarBindList in the order in which they were
received in the GetResponse-PDU.
RELEASE 4.0.3 SEP-09-2002
- Net::SNMP objects are now destroyed as expected when they are no
longer referenced. An internal reference to the object allocated by
the Net::SNMP::Dispatcher module is now properly cleared.
- A socket with a file descriptor value of 0 is now accepted by the
Net::SNMP module as a valid and open filehandle.
- Removed an "optimization" which was intended to provide a smoother
initialization of the dispatcher but instead could lead to messages
incorrectly timing out.
RELEASE 4.0.2 MAY-06-2002
- The SNMPv3 request message sent for time synchronization is now sent
with the same securityLevel that is configured for the session.
- The "reserved" bits in the msgFlags field of an incoming SNMPv3
message are now ignored as suggested by RFC 2572.
- When encrypting a SNMPv3 message, the padding byte(s) are now set to
a value equal to the size of the padding. "The actual pad value is
irrelevant..." according RFC 2574 Section 8.1.1.2. However, there
are some agents that expect this byte pattern.
- Corrected a reference count mismatch which would leave a listening
socket open if no response is received from the remote agent.
- Corrected a "deep recursion" error that occurred when using the
get_table() method to retrieve large tables in blocking mode.
- Using the "-delay" argument with the get_table() method no longer
incorrectly delays between message exchanges when retrieving the table.
- Optimizations and improvements were made to the Net::SNMP::Dispatcher
event scheduling and handling procedures.
- The "translate unsigned" logic now correctly handles properly
formatted (but unexpected) negative Counter64, Counter, Gauge, and
TimeTick values.
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