CMU-SNMP-ReleaseNotes.txt
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- Release Notes, Version 1.8
- Ryan Troll <ryan@andrew.cmu.edu>
- Major Changes:
- Portability / Bug Fixes
- #######################
- Incorporated patches from Par Westesson <pw@cbc.chalmers.se>. Par's
- description of the patches sent to me:
- - The SNMPv2 error code definitions in asn1.c have been fixed. [ They
- were previously listed as Hex values, instead of decimal. ]
- - The function snmp_var_EncodeVarBind in snmp_vars.c has been modified
- to be able to encode the exception values noSuchObject,
- noSuchInstance and endOfMibView. It does so using the definitions
- added in snmp_vars.h and the function asn_build_exception added in
- asn1.c.
- Note that we haven't included support for decoding these exceptions
- (since we're using the library in an agent rather than a manager).
- Including support for this would however only require some small
- changes to the function snmp_var_DecodeVarBind and the addition of
- an asn_parse_exception function.
- We also haven't made any changes to the print_type function in
- mib.c, so these values can't be printed. Otherwise, no other changes
- to the library should be necessary because of the inclusion of the
- support for the exceptions.
- - All calls to the macro ASN_PARSE_ERROR which increments the counter
- snmpInASNParseErrs have been removed from the functions that encode
- SNMP packets since it should only be used when decoding. This
- affects the files snmp_vars.c, snmp_msg.c and snmp_pdu.c.
- Incorporated patches from Sebastien Rosset
- (sebastien.rosset@cstelecom.cie-signaux.fr):
- - Patches that augment Par's changes for noSuchObject, etc.
- - Fixed a bug when trying to deal with Bulk requests
- MAX_OID_LEN is now correctly set to 128 subids.
- Removed bcmp, bzero calls, for Solaris 2.4.
- Parser now handles description fields that begin with a quote
- immediately followed by a word, instead of failing. (Thanks to Simon
- Burr <simonb@uk.uu.net>)
- ----------------------------------------------------------------------
- Release Notes, Version 1.7
- October 14, 1997
- Ryan Troll <ryan@andrew.cmu.edu>
- Major changes:
- Portability / Bug Fixes
- #######################
- Incorporated patches for compilation under Visual C++ 4.0 / WinNT.
- (Thanks to Steven Chew <smchew@ibm.net>)
- It is now possible to compile the Irix version with '-n32', '-32', or
- '-o32' and have it installed into the appropriate place with the
- "--with-mips-abi=[n32,o32,32]" flag to configure. (Thanks to Rob
- Earhart <earhart+@cmu.edu>)
- Incorporated patch for socket options under Linux. Now sending UDP
- packets to remote hosts that are unavailable should not hurt anything
- else. (Thanks to Chaskiel Grundman <cg2v+@andrew.cmu.edu>)
- Other
- #####
- The included MIB is now correct, and expanded.
- ----------------------------------------------------------------------
- Release Notes, Version 1.6
- May 27, 1997
- Ryan Troll <ryan@andrew.cmu.edu>
- Major changes:
- Portability / Bug Fixes
- #######################
- Correct use of int/long, so that machines using 64bit longs may use
- the library.
- Miniclient function declarations (and others) are now wrapped within
- the appropriate c++ wrappers.
- Added timer defines, to allow the library to compile with the Cygnus
- Win32 compiler.
- Now handles returns strings that are (supposedly) allocated yet
- contain no information.
- Fixed a few calls to asn functions that were passing sizeof(Pointer)
- rather than sizeof(what pointer points to), which weren't caught when
- these were the same. (But, on 64 bit machines...)
- Informs
- #######
- The built-in snmp PDU/Session management now correctly handles SNMP
- Informs.
- Parser
- ######
- The parser now accepts two additional pieces of information in a mib:
- DESCRIPTION and INDEX. It also handles "ACCESS" and "MAX-ACCESS".
- With these additions, SNMPv2 SMI MIBs can be parsed with minimal
- changes. (Specificly, with the removal of text conventions, etc.)
- The included CMU MIB should be a good example.
- Other
- #####
- Changed some symbol names to static, to help reduce symbol name
- conflict with applications.
- Corrected incorrect backwards-compatibility defines.
- ----------------------------------------------------------------------
- Release Notes, Version 1.5
- March 31, 1997
- Ryan Troll <ryan@andrew.cmu.edu>
- This SNMP library is based on the SNMP1.1b library that has been
- available via ftp.net.cmu.edu since September of 1991. Many changes
- have been made to increase it's performance, clean up memory leaks,
- and prepare it for use with SNMPv2 managers and agents.
- This is the last release of the CMU SNMP Library, aside from bug fixes
- and portability patches. Future SNMP development will be in a new
- direction. The new CMU SNMP library will be fully object oriented;
- compatible with SNMPv1, SNMPv2 Classic, and possibly others; and
- handle SMIv2 MIBs with the use of a MIB Compiler (IE: SMICng).
- The major changes since CMU SNMP 1.1b are:
- Autoconf
- ########
- The SNMP Library now uses GNU Autoconf to determine system specific
- information.
- Trap and PDU Type Definitions
- #############################
- All well-known traps and PDUs are now defined snmp_pdu.h, and are of
- the format SNMP_TRAP_${TrapType} and SNMP_PDU_${PDUType}. All defines
- previously used to specify trap and pdu type should still work.
- Installation Directories
- ########################
- The library is now installed in $(exec_prefix)/lib, and the include
- files are installed in $(exec_prefix)/include.
- Includes
- ########
- Applications now only need to include <snmp/snmp.h>, instead of
- all the separate headers required previously.
- MiniClient
- ##########
- This library now contains a mini-client. The miniclient only
- implements the Get, GetNext, and Set functions. By using the
- miniclient, SNMP capable applications may be quickly generated. (We
- use the miniclient for most of our internal monitoring stuff.)
- Optimizations
- #############
- Various parts of the library have been optimized. The most
- significant optimization adds 6 bytes to every outgoing packet the
- length identifiers for the Message, PDU, and Variable List SEQUENCEs
- are now all encoded in three bytes instead of 1. However, this
- reduces the number of iterations over the variable list during
- encoding from 4 to 1. There is also no delayed range shifting of the
- entire encoded stream to insert a better length.
- Purify
- ######
- All of the SNMP Applications we've compiled using this library have
- been purified, and all errors / complaints / warnings have been taken
- care of. Based on this, we believe the library is free of memory
- leaks
- Trap Generation
- ###############
- There are no longer routines for trap generation within this library.
- This may be done by the application.
- V1 - V2 Coexistance
- ###################
- There are two functions (snmp_coexist_V2toV1 and snmp_coexist_V1toV2)
- that should provide V1-V2 coexistance per RFC 1908. However, these
- have not been tested.
- Version
- #######
- The snmp_session structure now contains a variable called "Version".
- This variable specifies the default version of all incoming / outgoing
- data for this session.