Changes from v0.5.3 to v0.6.0
=============================

* Wed Apr 5 22:15:18 2017 +0100 - Radu - Eosif Mihailescu <radu.mihailescu@linux360.ro>

  Fix packaging of examples   - the proper destination is
  %{_defaultdocdir}/%{name}-%{version} ...   - ... but why bother when %doc
  can magically take care of it?

  (Git commit ab4657b276f804552399681634f5e024555b76c9)

* Sun Mar 12 15:51:38 2017 +0100 - Pieter Hollants <pieter@hollants.com>

  Correct RFC number that describes the AgentX protocol

  Fixes #29.

  (Git commit 101cc3d88d48d77b8b5260cc7479a3a238628431)

* Tue Nov 1 20:37:40 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Update module docstring

  Hooray, we're not under heavy development anymore!

  (Git commit f543df2195867662dc72e61989e25798fcad1765)

* Tue Nov 1 20:35:59 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  Update README and setup.py.in to indicate Python 3 compatibility

  (Git commit 3c662434549de36cffbdaff0f6de97a7a52ad0e3)

* Tue Nov 1 14:54:28 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Code formatting

  (Git commit 639619802d880b90d22b0492a93a51dd8bcb2f64)

* Tue Nov 1 14:54:11 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Correct some comments

  (Git commit 9e22370ba002b134543d24c4d28b007e8d828c9b)

* Tue Nov 1 14:50:41 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Remove superfluous double assignment of self._cvar.value

  We already assigned it a few lines above and also didn't modify it
  inbetween.

  (Git commit cb9af33107b21db6f75514e9ba13a7b0991a2a35)

* Tue Nov 1 14:06:10 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Convert between byte and unicode strings if necessary

  This change addresses the major issue that prevented python-netsnmpagent 
  from running under Python 3 so far.

  Under Python 2.x, a string that gets declared is of the "str" type, which
  is implemented as a byte string. Unicode strings have to be explicitly
  declared:

    >>> a = "Metallica"
   >>> type(a)
   <type 'str'>
   >>> isinstance(a, bytes)
   True
   >>> b = u"Motörhead"
   >>> type(b)
   <type 'unicode'>

  We were prettily using "str" strings everywhere, which, being byte 
  strings, perfectly aligned with the C-style strings exposed through the 
  ctypes module.

  Now under Python 3.x, however, a string that gets declared is an instance
  of a class that is still called "str" but is implemented as a collection
  of Unicode code points. There is no »u"Foo"« notation anymore, instead
  byte strings have to be explicitly declared with a "b" prefix:

    >>> a = "Motörhead"
   >>> type(a)
   <class 'str'>
   >>> isinstance(a, bytes)
   False
   >>> b = b"Metallica"
   >>> type(b)
   <class 'bytes'>

  Following the paradigma of enforcing a stricter distinction between
  Unicode and byte strings in code, the ctypes module in Python 3.x removed
  automatic conversions. Thus we now need to explicitly encode Unicode
  strings to byte strings before passing them to net-snmp. Likewise we need
  to decode received strings before returning them to Python code. In both
  cases we use the encoding retrieved from locale.getpreferredencoding().

  Note that this changed behavior affects running under Python 3.x ONLY, in
  an attempt to provide the "natural" behavior expected under the Python
  version used. Under Python 2.x, the interface to your Python code remains
  UNCHANGED, expecting and returning "str" byte strings.

  This also means that if your agent code is running under Python 2.x and 
  you want to pass or receive Unicode strings to python-netsnmpagent and 
  net-snmp, you will have to keep encoding/decoding them yourself.

  (Git commit 003fcb2724cfbaf22b876ab604b1914303a7e10d)

* Tue Nov 1 15:27:55 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Use long() under Python 2.x and int() otherwise

  Python 3.x does not need the "long" type anymore because "int" numbers 
  have no limit anymore.

  (Git commit 79b3a35c7f06f250fd447b2bd8b1a5465b135870)

* Tue Nov 1 15:17:14 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Always return numbers through int(), ignoring sys.maxint

  Actually I'm not sure what I tried to achieve with the sys.maxint check 
  as we can safely rely on int() under Python 2.x to automatically return a
  "long" typed number if "int" doesn't suffice. Under Python 3.x "int" 
  doesn't have a limit anymore, anyway.

  (Git commit 919c47dc53048204b11b22597954bafc3f5f2065)

* Tue Nov 1 19:34:30 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Decode snmpcmd output to Unicode if necessary

  Python 3 strings are Unicode strings, not byte strings.

  (Git commit f6b988ac08a4afba112eec0c84368ec8c5d9b540)

* Tue Nov 1 20:16:25 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Hardcode temporary directory name

  As the tests are now no longer run through the nosetests wrapper script, 
  sys.argv[0] doesn't contain reasonable data anymore.

  (Git commit 80f9a698504f346f77a80be3e303b550e90d27f4)

* Tue Nov 1 19:28:33 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  Makefile: Run tests with both Python 2 and 3

  This makes "make tests" run all tests with both Python 2 and Python 3, 
  thereby allowing to identify code that behaves differently under either 
  Python version.

  Because (at least on my system) there are no "nosetests2" and
  "nosetests3" links but "python2" and "python3" links do exist, we now run
  the tests via 'python2 -c "import nose; nose.main()' statements
  (likewise for python3).

  (Git commit a9cd9bdc71d667d491a5829a7f25f4399933db02)

* Tue Nov 1 20:14:36 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Call shutdown() via atexit instead of __del__()

  Lesson learned: don't do cleanup stuff in __del__() or you'll get 
  exceptions printed on stdout and possibly incomplete cleanup when running
  under Python 3.

  (Git commit 93cd55a97f0db3b407454e1cd90143decd744fc6)

* Tue Nov 1 15:34:24 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  test_02_netsnmpagent_init: Drop unused imports

  (Git commit 8ffc1c76ad4cb6be00fe8575bc89ebd9bd71411f)

* Tue Nov 1 20:19:10 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Add/revise some comments

  (Git commit dd7fd8046d2b3d0c33f64c32d0464b4873dfbdd9)

* Mon Oct 31 19:16:27 2016 +0100 - Pieter Hollants <pieter@hollants.com>

  Code formatting fixes

  (Git commit 9975c3a539a9cf6b278cd8904ad0efb3346c7e4e)

* Thu Oct 27 21:11:11 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Python 3 support: Use items() when iteritems() is not available

  (Git commit a6f837e06f2d68cbc1cf74fc075d2fe1403ab140)

* Thu Oct 27 21:06:46 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Python 3 support: Use print(foo) instead of print foo

  (Git commit a670331c7e126cf4d39ef6a73b61cd92686f2b41)

* Mon Aug 29 23:06:24 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Update README to give credit where credit is due

  (Git commit 5122583d4d0f7a1a90a9127f76550b5f37ec2f56)

* Mon Aug 29 23:01:07 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Trivial description fixes in SIMPLE-MIB.txt

  (Git commit d26c73a028af9e3df8e3c74653e6f280d3988a01)

* Fri Aug 19 08:53:19 2016 +0200 - Tobias Deiminger <tobias.deiminger@gmail.com>

  Fixes for using IpAddress objects as table indices

  This incorporates a number of fixes for using IpAddress objects as table 
  indices: 1. Add missing attributes to IpAddress class' __init__() method 
  2. Due to an unfixed Net-SNMP issue related to byte order (see
    https://sourceforge.net/p/net-snmp/bugs/2136/), we have to pass
    IpAddress values in host byte order when used as table indices and
    in network byte order otherwise. 3. Improve string representation of
  IpAddress in Table.value().

  Note: In IpAddress.cref() we don't store a reference to _cidx in "self". 
  This is only safe if _cidx is consumed by a Net-SNMP function that copies
  the value (eg. snmp_varlist_add_variable). If it were used by Net-SNMP as
  raw pointer, Pythons reference counting could delete the object while
  Net-SNMP still wants to access it.

  These changes have been tested on x86_64 (little endian) and mips64 (big 
  endian) architecture.

  (Git commit 519b0e8f3b500c10e5ec57dd3eadaebf09329146)

* Sat May 28 11:45:51 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Bump copyright year

  (Git commit 9a5b4e6f94874d3797fba5c21a1401684e0bc1fa)

* Sat May 28 11:35:53 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Relicense under the Lesser GNU Public License (LGPL), version 3.

  I've decided to relicense python-netsnmpagent under the LGPL instead of
  the GPL to facilitate integration with LGPL-licensed as well as
  proprietary software. Ie. using python-netsnmpagent in your proprietary
  subagent does not mean that you have to license your subagent under
  python-netsnmpagent's license as well.

  (Git commit d19b91131353c19cf408f2208bdf5384941a47d6)

* Wed May 27 14:00:30 2015 +0300 - Anton Todorov <a.todorov@storpool.com>

  netsnmpagent: Fix Table's value() cutting off ASN_COUNTER64 table values

  When returning a table row's data, we accessed ASN_COUNTER64 values via a 
  32-bit pointer, effectively cutting off the other 32 bits. Using the
  "data" union's "counter64" pointer fixes this.

  (Git commit 1fb1abb33a5eccc172b0279b099172a5230e4118)

* Fri Apr 17 10:47:54 2015 +0200 - Pieter Hollants <pieter@hollants.com>

  Update README with extended credits

  (Git commit 9f7ad1cb2563c4d91948265cf85015bd67c1dea3)

* Wed Apr 15 15:19:54 2015 +0300 - Anton Todorov <a.todorov@storpool.com>

  Fix format string in threading_agent example's logging

  Python 2.6 requires positional argument specifiers, omitting them only 
  works on Python 2.7 and later.

  Cf. https://docs.python.org/2/library/string.html#formatstrings

  (Git commit d547d9fc162c64db35b46ef75593534002cf5c6a)

* Wed Apr 15 15:25:55 2015 +0300 - Anton Todorov <a.todorov@storpool.com>

  examples/run_* scripts: Trap additional signals for cleanup

  In some cases the tempdirs were left because we seem to have missed some 
  signals.

  (Git commit 6bc2e8753f38e872ab8815bc4186b314869993eb)

* Sun Mar 22 13:49:46 2015 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Drop special string handling in Table's init()/setRowCell()

  Because of issues with strings inside tables, we used to implement some 
  special handling for (what we thought were) the trailing zero byte in C 
  strings in Table's init() and setRowCell() methods, passing size+1 to 
  netsnmp_set_row_column().

  However, while this seemed to work on older net-snmp versions, with newer 
  net-snmp versions we suddently had different issues, with irregular dot
  chars appearing at the end of strings.

  Turns out, we had a bug, but fixed it at the wrong place: right here,
  passing size (not size+1) appears to be correct. a8181ddb fixes the real
  culprit in Table's value() method.

  (Git commit 74fac74547eb9a344852c06fc7ca6c78476a4cbd)

* Sun Mar 22 13:35:58 2015 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Make Table's value() method regard string lengths

  When creating the dictionary returned by the Table class's value()
  method, we so far assumed that the strings referenced through the "data"
  field in netsnmp_table_data_set_storage structures would be zero
  byte-terminated, as all C strings. However, this does not seem to be the
  case, as eg. netsnmp_set_row_column() uses memcpy(), not strcpy(), ie.
  when setting a string it is NOT zero byte-terminated. We thus need to
  regard "data_len" when returning data to the Python world.

  Strangely, this does not seem to be necessary with the simple scalar
  types such as OctetString and DisplayString which are basically
  ctypes.c_char_p objects as well...

  (Git commit a8181ddbd1c2ba633b0e6bd651b32612ae42b117)

* Wed Nov 12 18:05:00 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Add test cases for OctetString scalar type

  (Git commit e01291200f16460f08af994866113e548db234cf)

* Wed Nov 12 18:00:59 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Handle strings without datatype and remove double quotes

  Sometimes, snmpget might return data without an explicit datatype. We'll
  handle it as strings, then, and remove any heading and trailing double
  quotes.

  (Git commit 8b8681e7f3c2c24bd3233b360c2454dc458a493c)

* Wed Nov 12 13:38:22 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Add test cases for TimeTicks scalar type

  (Git commit dd1be2cb264957cc45bceb568bd820f5244be38d)

* Wed Nov 12 13:36:12 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Fix splitting in snmpget() for output with multiple ":"
  chars

  (Git commit ceb3c12327eedccfe2896182def2725dd5e4dc95)

* Wed Nov 12 13:28:37 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Smaller fixes for Counter32/Counter64 integration tests

  "Oops".

  (Git commit eb48301e194dd3f03000cd8e5e9a75c457275d6b)

* Wed Nov 12 11:20:53 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Add test cases for Counter32 and Counter64 scalar types

  (Git commit 68a7a7263f565e533d9caa6a2bc0bd539b78ce55)

* Wed Nov 12 11:09:09 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Smaller fixes for Unsigned32 integration tests

  (Git commit 13924941b9932401be2434a3937a6d174292a44a)

* Tue Nov 11 20:47:38 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Add test cases for Integer32 variable type and rework those for
  Unsigned32

  (Git commit 52c9e82f493da197e1d31e343eb419347595b480)

* Tue Nov 11 15:51:53 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Just some small fixes to unify source code style

  (Git commit fb5265611ef6ce94890678a9c432d719aa1fafb2)

* Tue Nov 11 15:05:47 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Construct packager email from user- and hostname if not set through git
  config

  The included RPM .spec file always needs a packager name or email
  address, otherwise rpmbuild will complain. In properly configured git
  repos, the email address configured with "git config user.email" would
  have been used so far, but it should be possible to issue a "make rpms"
  without this requirement.

  Thus we now fall back to constructing a most probably bogus email address
  by combining the username and the hostname. This will allow to build RPMs
  for personal purposes, however, for redistribution purposes one should
  always explicitly configure a proper email address through "git config"
  beforehand.

  (Git commit 2bef55cd908e8cf05bac02e65cb705294607f39d)

* Thu Jul 31 16:10:34 2014 +0200 - Jacobo de Vera <devel@jacobodevera.com>

  Rename as suggested in review

  (Git commit bdbb299c428d1f936433cbff9086490dc37f39b6)

* Mon Jul 21 14:25:40 2014 +0200 - Jacobo de Vera <devel@jacobodevera.com>

  Make the use of MIB files completely optional

  (Git commit b2baaa3b3097546603c8b082395d3c27cceb4467)

* Sat May 17 00:28:57 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Update README

  (Git commit 9f9de13efffe9be0b1b9ea24a91046a96e383b40)

* Sat May 17 00:27:48 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Add "tests" target to Makefile and README explaining why to use it

  net-snmp's broken shutdown semantics force use to wrap nosetests so that
  it spawns a new Python process for each test case file.

  (Git commit 5dd4001379e676d0772ca6f7bfe37458b1fadc15)

* Sat May 17 00:27:06 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Rename test case files to guarantee a meaningful execution order

  (Git commit 4126fbba217b76babc9b41dba3038dcda5600ac7)

* Fri May 16 23:41:43 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Adapt test_netsnmptestenv.py to the snmpget() changes from 63414520

  (Git commit bc4fff3aa72d19ef097c5d6ae740eb5f6fa92faa)

* Fri May 16 23:28:16 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Do not call net-snmp's shutdown_agent() anymore

  Unfortunately, the situation is even worse than described in 9c6c5560 so
  that we'll have to revert that change. Calling shutdown_agent() will
  cause trouble if SNMP objects have been registered (double free()s).

  (Git commit ea4796fadff7f7d3c2f3481e112423bdb0f0681e)

* Fri May 16 23:07:07 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Add first test cases for netsnmpagent SNMP objects (Unsigned32)

  This first set of test cases tests
  - SNMPGET on a read/write Unsigned32 object without initval returns 0
  - SNMPSET of that object to 42 raises no exception
  - SNMPGET on that object then returns 42
  - SNMPGET on a Unsigned32 object with initval 0 returns 0
  - SNMPGET on a Unsigned32 object with initval -1 returns 4294967295
  - SNMPGET on a Unsigned32 object with initval 4294967295 returns
  4294967295
  - SNMPGET on a read-only Unsigned32 object without initval returns 0
  - SNMPSET on that object raises a NotWritableError exception

  (Git commit d8de7ee1f5ee38c0b8c602efa8bd0ae5d890e83b)

* Fri May 16 22:24:59 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Add snmpset() method to set values

  (Git commit f5323fe486cf907281084f5adacf9f205595a5f6)

* Fri May 16 21:36:21 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Make snmpget() extract and return data and datatype

  Calling functions will have no interest in extracting the data
  themselves.

  (Git commit 63414520f6278ff59d477cd35e312173828d6769)

* Fri May 16 15:54:52 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Update TEST-MIB.txt to offer OIDs for more diverse testing

  (Git commit b3b2572ed91f7369cfa67f63fa34526a8f2af7e4)

* Fri May 16 15:50:36 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Re-import os and time once more in netsnmptestenv's shutdown() method

  Especially "os" may have been __del__'d when shutdown() gets called a
  second time by netsnmptestenv's own __del__() method.

  (Git commit 10f1c011f13aedca2db48ba1f2807fe56fa66092)

* Fri May 16 15:19:40 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Use __file__ instead of sys.argv[0] to find path to TEST-MIB

  If run through the "nosetests" script, sys.argv will be
  /usr/bin/nosetests, not the path of test_netsnmpagent_init.py. We have to
  use __file__ instead.

  (Git commit 377dc15e5d2efbc7103e1dc0cb5a0ff7bc4a6dc2)

* Fri May 16 15:10:53 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Rename test_netsnmpagent.py to test_netsnmpagent_init.py

  We can only test the init behavior of the netsnmpagent module in this
  file as, among other things, we explicitly test that calling
  agent.start() without registering any SNMP objects does not make them
  available. So we can't at the same time register and test SNMP objects --
  calling shutdown() and instantiating a new netsnmpAgent instance wouldn't
  work for the reasons laid down in 9c6c5560.

  (Git commit f352558d5f57bc34abef297ec3f359fdac528c52)

* Fri May 16 00:45:27 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Add first test cases for netsnmpagent module itself

  These test cases so far yet deal with rather low level issues of the
  module only, such as the expected behavior after instance creation,
  whether a connection to a master snmpd agent inside a net-snmp test
  environment set up with the netsnmptestenv module could be successfully
  established etc.

  More important tests such as the behavior of the different types of SNMP 
  objects are yet to follow. For this reason, the included new TEST-MIB.txt 
  so far gets used only indirectly (to test when it becomes available to
  the test environment's snmpd).

  (Git commit 12a7097def7ddc3963a683b0dc0b873c19265ca3)

* Thu May 15 20:47:30 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Add test cases for snmpcmd() exceptions to test_netsnmptestenv.py

  These test cases cover the changes done in 706ecb06.

  (Git commit 931b27f2cdf3489ba94dd3f59e94b8c1d364e632)

* Thu May 15 20:42:51 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Fix snmpcmd() error detection/exceptions

  For one thing, we used re.match() to search for matches at the end of the 
  output, thus exceptions were never raid. Second, we only caught the case
  where a MIB (and thus the OID) was basically known, but not available
  (ie. because there was no subagent connected serving it) and reported it
  with the wrong exception name. Third, we didn't catch the case when an
  unknown OID was specified (eg. an unknown MIB or a known MIB but an
  invalid OID within that MIB).

  (Git commit 73f63d0b6d1168853525059b1ff650601f110734)

* Thu May 15 19:29:38 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Reorder imports in test_netsnmptestenv to be more logical

  (Git commit 706ecb06e56b39758696bb11c1f338c32732b511)

* Thu May 15 16:36:12 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Use slightly more intelligent process killing in netsnmptestenv module

  Instead of hammering the process to be killed with signals continously, 
  sleep small amounts of time and check procfs. This is obviously 
  Linux-specific, but so far I have not heard of anyone trying to use 
  python-netsnmpagent with net-snmp on different platforms.

  (Git commit d638fe963a2372cfc4b9abcf2b72619a91079248)

* Thu May 15 15:32:35 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Add more tests for complete and clean shutdown() in
  test_netsnmptestenv.py

  Tests that
  - check that the snmpd has really exited by killing it's remembered PID
  - check that the tmpdir used by the testenv has been removed

  (Git commit a97ef42a87633ad65c509b6006ef2e20176b74ca)

* Thu May 15 15:28:38 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Test that snmpget really fails again after netsnmptestenv shutdown

  (Git commit 194d87f50a733e871ce9fd17a91ff141f3cd4558)

* Thu May 15 15:26:06 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Make use of nicer/more effective nose tools in test_netsnmptestenv.py

  (Git commit a5aff2547ed35f4f062f685c208cbb8585b40526)

* Thu May 15 15:15:05 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Use @timed decorator to test the time test_netsnmptestenv functions use

  (Git commit eecf982a941339416b6481829a40a16712342c90)

* Thu May 15 15:12:37 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Have test_netsnmptestenv.py also test shutdown(), not just call it

  (Git commit a4ccbb60f93604122131e1652cbef0af33e5398a)

* Thu May 15 15:09:49 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Add docstrings to test cases in test_netsnmptestenv.py

  (Git commit 8e73e9dc40f6306931d5cd7ffea3ed4bb7f53d5d)

* Wed May 14 14:42:42 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Use nose as testing framework

  The advantages over unittest are quite well-known (eg. not having to
  create test classes, test discovery etc.), so I won't elaborate in much
  detail here.

  (Git commit 66dad7b2493237e754547797619a801fe5a5ac1a)

* Wed May 14 13:28:41 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Have snmpcmd() raise exceptions in timeout/"no such OID"
  cases

  The SNMP commands executed might hit a timeout (no running snmpd, wrong 
  community string etc.) or a "no such OID" condition (no subagent
  running). These cases must be detectable by tests without having to check
  the output.

  (Git commit a0d17da836b6a5c84c187857fc5bd53bd81318e4)

* Wed May 14 13:52:42 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Move shutdown()'s process killing into own function

  Sooner or later our net-snmp test environment will consist of more than 
  snmpd (eg. snmptrapd), so it makes sense to generalize the process
  killing.

  (Git commit cb426775a957cfb1eaffb1fec684707909e82cf3)

* Wed May 14 13:45:37 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Rename __del__ to shutdown

  As done for netsnmpagent in e7d9144c and for the same reasons.

  (Git commit 2b94e8c9359942eeff404f3b10a99ac92ca5290d)

* Wed May 14 13:26:55 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Always strip() SNMP command's output immediately

  (Git commit 38c3945dfeea2fd4545f77277a8d63ad6149ac11)

* Wed May 14 13:19:41 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmptestenv: Explicitly remember used TCP ports in instance variables

  This way test_netsnmptestenv.py can inspect in a future-safe manner
  whether the net-snmp daemons are still running and occupy the TCP ports
  or have exited properly. Currently the ports are still hard-coded but
  might become dynamic in a future commit.

  (Git commit 129778cc3b7fa165ce0f63f7487569822570b72e)

* Fri May 2 01:22:20 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Call net-snmp's shutdown_agent() in shutdown() method

  Properly written agents should call shutdown_agent() in addition to 
  snmp_shutdown() as we did a init_agent() before the init_snmp() call.

  Note: with ALL net-snmp versions up to and including the current 5.7.3
  beta this will still NOT allow for proper cleanup in such a way that you
  could
  "del" the netsnmpAgent instance, create a new one and have that one
  connect to the master agent successfully. Even with 5.7.x's code cleanups
  and the subsequent removal of "#ifdef SHUTDOWN_AGENT_CLEANLY" in snmpd.c,
  it still seems to be necessary to exit the process (or thread) and have
  the OS do additional cleanup work if a substantially different
  netsnmpAgent instance (eg. with a different MasterSocket) is to be
  created. Unfortunately this also affects test cases where one wants to
  run each test in a defined, clean and reproducible environment.

  (Git commit 9c6c556005838f67232a0f70a6a299968713e31a)

* Fri May 2 01:19:11 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Rename __del__ to shutdown()

  I ran into the common "In Python __del__ is no destructor" trap. The
  cleanup code called there was possibly never executed at all. Rename the
  method to
  "shutdown" to give agents a chance to explicitly call it at their own 
  shutdown.

  (Git commit e7d9144c87199fb5f245020c8c99b3a886fb8901)

* Thu May 1 13:07:51 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmpapi: define netsnmp_init_mib() instead of unused init_mib()

  In netsnmpapi we defined init_mib() but in netsnmpagent we called 
  netsnmp_init_mib() which was undefined in netsnmpapi. That didn't cause
  trouble because a.) ctypes implicitly treated it as being "void
  netsnmp_init_mib(void)" and b.) by coincidence that matched the function
  signature.

  The confusion stemmed from a function rename in the net-snmp project, see 
  https://www.mail-archive.com/net-snmp-coders%40lists.sourceforge.net/msg08417.html

  (Git commit fa383b70495dac6977c83cc9857f5aa41c8ecc59)

* Wed Apr 30 22:56:19 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Add netsnmptestenv Python module

  python-netsnmpagent needs test cases, integration tests with net-snmp to
  be precise. These tests will need the same temporary net-snmp test
  environments as the example agents, so it makes sense to unify such code
  into a new Python module "netsnmptestenv".

  Initially this module will be used by netsnmpagent tests, later on we'll 
  modify the example agents so that they can use it, too, obsoleting the
  need for shell script wrappers. For this reason and because the example
  agents end up in /usr/share/doc/packages/python-netsnmpagent/examples/ in
  binary distributions, netsnmptestenv will be installed into the system
  along with the two existing Python modules netsnmpapi and netsnmpagent.

  For now, only one test environment can be created at the same time
  because we hardcode the TCP ports used by net-snmp. We'll replace this
  with random port assignment/port in-use detection code later.

  And of course the new module gets test cases itself, too :-)

  (Git commit 3a6a90f99aa3cca2a912a6fab6dfde59c8fc3acd)


Changes from v0.5.2 to v0.5.3
=============================

* Mon Aug 29 23:06:24 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Update README to give credit where credit is due

  (Git commit de4d76adbc5e54f0ae4536e0a661eb466251484d)

* Mon Aug 29 23:01:07 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Trivial description fixes in SIMPLE-MIB.txt

  (Git commit d2797ef699590b4601f584db3168c23e046b2b4e)

* Fri Aug 19 08:53:19 2016 +0200 - Tobias Deiminger <tobias.deiminger@gmail.com>

  Fixes for using IpAddress objects as table indices

  This incorporates a number of fixes for using IpAddress objects as table 
  indices: 1. Add missing attributes to IpAddress class' __init__() method 
  2. Due to an unfixed Net-SNMP issue related to byte order (see
    https://sourceforge.net/p/net-snmp/bugs/2136/), we have to pass
    IpAddress values in host byte order when used as table indices and
    in network byte order otherwise. 3. Improve string representation of
  IpAddress in Table.value().

  Note: In IpAddress.cref() we don't store a reference to _cidx in "self". 
  This is only safe if _cidx is consumed by a Net-SNMP function that copies
  the value (eg. snmp_varlist_add_variable). If it were used by Net-SNMP as
  raw pointer, Pythons reference counting could delete the object while
  Net-SNMP still wants to access it.

  These changes have been tested on x86_64 (little endian) and mips64 (big 
  endian) architecture.

  (Git commit d0941efe26cccd3adf48c337ada9b7eb1a78802b)


Changes from v0.5.1 to v0.5.2
=============================

* Sat May 28 11:45:51 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Bump copyright year

  (Git commit d6edbe4db74c886bc6e69af7452982d143c9f186)

* Sat May 28 11:35:53 2016 +0200 - Pieter Hollants <pieter@hollants.com>

  Relicense under the Lesser GNU Public License (LGPL), version 3.

  I've decided to relicense python-netsnmpagent under the LGPL instead of
  the GPL to facilitate integration with LGPL-licensed as well as
  proprietary software. Ie. using python-netsnmpagent in your proprietary
  subagent does not mean that you have to license your subagent under
  python-netsnmpagent's license as well.

  (Git commit f815239c4d76d82d7c620ace1398240f49ad6f83)


Changes from v0.5.0 to v0.5.1
=============================

* Wed May 27 14:00:30 2015 +0300 - Anton Todorov <a.todorov@storpool.com>

  netsnmpagent: Fix Table's value() cutting off ASN_COUNTER64 table values

  When returning a table row's data, we accessed ASN_COUNTER64 values via a 
  32-bit pointer, effectively cutting off the other 32 bits. Using the
  "data" union's "counter64" pointer fixes this.

  (Git commit 3863552a9b9b4d6ef3b1fe79d3659a42a4311b5f)

* Fri Apr 17 10:47:54 2015 +0200 - Pieter Hollants <pieter@hollants.com>

  Update README with extended credits

  (Git commit 21fd9866f6b4ffedda5234e3d3fedfe46694a907)

* Wed Apr 15 15:19:54 2015 +0300 - Anton Todorov <a.todorov@storpool.com>

  Fix format string in threading_agent example's logging

  Python 2.6 requires positional argument specifiers, omitting them only 
  works on Python 2.7 and later.

  Cf. https://docs.python.org/2/library/string.html#formatstrings

  (Git commit 5e3b6a01b149af160025c932ab91d39f6bb664e6)

* Wed Apr 15 15:25:55 2015 +0300 - Anton Todorov <a.todorov@storpool.com>

  examples/run_* scripts: Trap additional signals for cleanup

  In some cases the tempdirs were left because we seem to have missed some 
  signals.

  (Git commit 41efac1224b073e3dfbe892da943febbce8cd0ca)

* Sun Mar 22 13:49:46 2015 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Drop special string handling in Table's init()/setRowCell()

  Because of issues with strings inside tables, we used to implement some 
  special handling for (what we thought were) the trailing zero byte in C 
  strings in Table's init() and setRowCell() methods, passing size+1 to 
  netsnmp_set_row_column().

  However, while this seemed to work on older net-snmp versions, with newer 
  net-snmp versions we suddently had different issues, with irregular dot
  chars appearing at the end of strings.

  Turns out, we had a bug, but fixed it at the wrong place: right here,
  passing size (not size+1) appears to be correct. a8181ddb fixes the real
  culprit in Table's value() method.

  (Git commit 84de336dbd3f27814c698659d8bc4c0106d2ce97)

* Sun Mar 22 13:35:58 2015 +0100 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Make Table's value() method regard string lengths

  When creating the dictionary returned by the Table class's value()
  method, we so far assumed that the strings referenced through the "data"
  field in netsnmp_table_data_set_storage structures would be zero
  byte-terminated, as all C strings. However, this does not seem to be the
  case, as eg. netsnmp_set_row_column() uses memcpy(), not strcpy(), ie.
  when setting a string it is NOT zero byte-terminated. We thus need to
  regard "data_len" when returning data to the Python world.

  Strangely, this does not seem to be necessary with the simple scalar
  types such as OctetString and DisplayString which are basically
  ctypes.c_char_p objects as well...

  (Git commit b70d6cd3cc9ecee55cdb4bed0a246d6782fa7c42)

* Tue Nov 11 15:51:53 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Just some small fixes to unify source code style

  (Git commit 24e9b89cb5148f52ba032c5b5b13e1de05aecb15)

* Thu Jul 31 16:10:34 2014 +0200 - Jacobo de Vera <devel@jacobodevera.com>

  Rename as suggested in review

  (Git commit ccc443fb68fd927ca235c5021716ec4aed158fc3)

* Mon Jul 21 14:25:40 2014 +0200 - Jacobo de Vera <devel@jacobodevera.com>

  Make the use of MIB files completely optional

  (Git commit a760a4325512771da65f1c6030e9a17ee9ac1d84)

* Mon Jun 1 22:31:45 2015 +0200 - Pieter Hollants <pieter@hollants.com>

  Update README

  (Git commit d3dfa854e79cbe7ae2c7c05a21c2aa9eed5e3877)

* Fri May 16 23:28:16 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Do not call net-snmp's shutdown_agent() anymore

  Unfortunately, the situation is even worse than described in 9c6c5560 so
  that we'll have to revert that change. Calling shutdown_agent() will
  cause trouble if SNMP objects have been registered (double free()s).

  (Git commit 9618ab334f56dbc1fd5d523862bb8355a2a72d8a)

* Fri May 2 01:22:20 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Call net-snmp's shutdown_agent() in shutdown() method

  Properly written agents should call shutdown_agent() in addition to 
  snmp_shutdown() as we did a init_agent() before the init_snmp() call.

  Note: with ALL net-snmp versions up to and including the current 5.7.3
  beta this will still NOT allow for proper cleanup in such a way that you
  could
  "del" the netsnmpAgent instance, create a new one and have that one
  connect to the master agent successfully. Even with 5.7.x's code cleanups
  and the subsequent removal of "#ifdef SHUTDOWN_AGENT_CLEANLY" in snmpd.c,
  it still seems to be necessary to exit the process (or thread) and have
  the OS do additional cleanup work if a substantially different
  netsnmpAgent instance (eg. with a different MasterSocket) is to be
  created. Unfortunately this also affects test cases where one wants to
  run each test in a defined, clean and reproducible environment.

  (Git commit b579a0212f619d76b2e6d2ddbfa06db58f6db27a)

* Fri May 2 01:19:11 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmpagent: Rename __del__ to shutdown()

  I ran into the common "In Python __del__ is no destructor" trap. The
  cleanup code called there was possibly never executed at all. Rename the
  method to
  "shutdown" to give agents a chance to explicitly call it at their own 
  shutdown.

  (Git commit 7bfac319adc259394c117974a8b539fcc2c80170)

* Thu May 1 13:07:51 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  netsnmpapi: define netsnmp_init_mib() instead of unused init_mib()

  In netsnmpapi we defined init_mib() but in netsnmpagent we called 
  netsnmp_init_mib() which was undefined in netsnmpapi. That didn't cause
  trouble because a.) ctypes implicitly treated it as being "void
  netsnmp_init_mib(void)" and b.) by coincidence that matched the function
  signature.

  The confusion stemmed from a function rename in the net-snmp project, see 
  https://www.mail-archive.com/net-snmp-coders%40lists.sourceforge.net/msg08417.html

  (Git commit 301a0e8a4b9f319dcf4ed63c9c90ee6064db64ba)

* Sat Apr 19 11:24:05 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Cosmetics

  (Git commit 5845f8adc9b21d3497156b71e26ae120364c8a9f)

* Fri Apr 18 14:20:24 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Revert c77f52aaa and c20a48f89 (do not define __version__ ourselves)

  c77f52aaa aimed at making a __version__ attribute available inside the 
  netsnmpagent module by using pkg_resources to retrieve our version
  number. c20a48f89 consequently added a RPM spec file dependency on
  python-setuptools.

  This was clearly wrong, not only because it made running the examples
  from within a git clone or a source distribution impossible until "make
  install" got executed. It is just not the netsnmpagent module's job to
  have any knowledge about its (externally assigned) version number.
  Instead of using pkg_resources ourselves, production quality agents that
  use our module can
  (and should) use pkg_resources if they require a specific
  python-netsnmpagent version. After all, they need a installed copy of
  python-netsnmpagent anyway, so pkg_resources DOES know its version. This
  could look like this:

  [...]

  Finally, the example agents in the source distribution are always
  designed for the corrosponding version of the module, so no need to
  express explicit version requirements here that are implicit.

  (Git commit 5715e77f2f8e792a0732b1934e9eebefc2e8ee6a)

* Fri Apr 18 00:10:36 2014 +0200 - Pieter Hollants <pieter@hollants.com>

  Fix indenting style in setup.py.in

  Yes, one could discuss Tabs and Space usage and Tab size and the meaning
  of life and all, but for the time being the code style should at least be 
  consistent.

  (Git commit fd42a511844afb0b7c1cb47276b4be547c824508)

* Sat Feb 22 14:32:22 2014 +0100 - Pieter Hollants <pieter@hollants.com>

  Add slides from the FOSDEM 2014 lightning talk on python-netsnmpagent

  (Git commit 7574563d5d86361032522299fef492277a6023d4)

* Sun Feb 2 10:24:30 2014 +0100 - Daniele Sluijters <github@daenney.net>

  setup: Add classifiers, link to Github repo.

  (Git commit 0d6452e4fd57f5ad0e7caa3760117f9da121c1c5)


Changes from v0.4.6 to v0.5.0
=============================

* Mon Oct 28 15:14:22 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add RPM spec file dependency on python-setuptools

  At least in SLES 11 SP2, the pkg_resources module is only available if
  the python-setuptools RPM has been installed. In newer openSUSE versions, 
  installation python-distribute will satisfy this dependency as well.

  (Git commit c20a48f8978fa4cfee9b0a3e0acc9e9ce8a4c705)

* Mon Oct 28 14:33:01 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix Makefile's "install" target

  (Git commit a8dad4a36c8358ccff92a38641bc5a5f8bd6db17)

* Sun Oct 27 18:01:43 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Export module's version as obtained from setuptools to enable version
  checks

  Seeing that python-netsnmpagent keeps gaining features in newer versions,
  I thought that it makes sense to make its version number available for
  version checks in agent code. Especially since some changes such as those
  to logging behavior in 61e9c4aa can not really be tested for.

  (Git commit c77f52aaa00fa41352406f9410e61813eefc0183)

* Sun Oct 27 17:44:06 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Distinguish connect failure between first attempt and reconnecting

  On the one hand, it does not make sense to BOTH raise a
  netsnmpAgentException for connection failure that will undoubtedly be
  printed to stderr or logged in some kind of way by agents AND pass on
  net-snmp's "Warning" log message to be printed/logged as well.

  On the other hand, we can not unconditionally intercept and surpress the
  "Warning" log message as there is not only the scenario of connection
  failure at startup but also when we got disconnected by the AgentX
  master. In the latter case we would get and print/log an "Info" log
  message that we were disconnected and net-snmp will retry in, say, 15
  seconds and another "Info" when we'd be connected again, but see no log
  message for ongoing connection failure.

  Thus, this change reworks the netsnmpAgentStatus cases to move away from
  a generic DISCONNECTED status to two distinguished FIRSTCONNECT and
  RECONNECTING cases: the connection failure log message will be surpressed
  and an exception be raised in the FIRSTCONNECT state only.

  And while we're at it, ECONNECT was inspired by <errno.h>, of course, but
  as I can't imagine other EWHATEVER conditions, I felt CONNECTFAILED to be
  a more self-explainatory name.

  (Git commit 61e9c4aa81e583d8d21a1d6dbb71c70ac8da0f46)

* Sun Oct 27 13:59:18 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Explicitly document the possible "msgprio" strings

  As client code might opt to not just print/log the priority but apply 
  filtering to it.

  (Git commit b9ec11a51a7f89e5cde301a11514f55c2ed894d5)

* Sun Oct 27 13:56:59 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Write out priority levels LOG_EMERG as "Emergency" and LOG_CRIT as
  "Critical"

  Since we most probably write these to stderr or a logfile, they should be 
  verbose and unambiguous enough for the user.

  (Git commit 1fdcf5637cbab1c2ea548b9377edc7c548cdc24d)

* Sun Oct 27 12:48:58 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add support for custom log handlers

  Change b68a9775 implemented detection of connection establishment and
  failure by accessing the log messages net-snmp generates. Log messages
  were still printed to stderr.

  This change allows agents using python-netsnmpagent to define their own 
  custom log handler function by setting the new "LogHandler" property when 
  creating the "netsnmpAgent" object. The function will then be called
  whenever the net-snmp code generates a log message with two parameters: 
  1. a string describing the message's priority 2. the text of the message
  itself

  If "LogHandler" is None, error message will continue to be printed to
  stderr, as can be seen in simple_agent.py. Whereas threading_agent.py,
  being a step towards a more real-life agent, has been updated to use a
  custom "LogHandler" to integrate net-snmp messages in its output more
  nicely.

  In your own agents, you will instead most likely define a custom log
  handler to write the messages to your agent's logfile.

  (Git commit f14b919664b7418ed56e0cd3fdf86531501c7c64)

* Fri Oct 25 18:31:58 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Support detecting connection establishment/failure

  So far we just relied on net-snmp resp. its init_snmp() function to
  establish the AgentX connection to the master snmpd instance and neither
  knew nor cared about whether a connection could be established at all. A
  mistake in the
  "MasterSocket" option would only cause a warning on stderr, emitted by
  net-snmp itself, only. Likewise, indication of a successful connection
  was through log messages on stderr only, too.

  This change introduces support for explicit detection of connection 
  establishment and failure. To this end, the netsnmpAgent class' internal
  "_started" flag was replaced with a "_status" property that can take on
  the values defined in the new "netsnmpAgentStatus" enumeration. Your code
  should however NOT access this property -- just make sure to catch the
  new netsnmpAgentExceptions (implemented in the example agents in
  cd4ee23b).

  The change is quite large due to the fact that net-snmp itself in neither
  the 5.4.x nor 5.7.x versions actually returns status information:
  init_snmp() is defined as "void", lending due to the fact that it will
  actually trigger a sequence of function calls including callback
  functions that return "void" themselves. Unfortunately there is also no
  dedicated callback mechanism for client code such as python-netsnmpagent
  that gets called on connection status changes. So we had to invent it on
  our own, using two callback functions as more or less ugly workarounds: a
  custom log handler and, for net-snmp 5.4.x support, another callback
  function that abuses a callback hook originally intended for different
  purposes. See the sources for details, they are well commented.

  In this version, our custom log handler writes all log messages it
  receives to stderr, resembling previous behavior with the difference that
  we also log a message's priority level as defined by net-snmp, eg.
  "[Info] Foo.".

  (Git commit b68a977562d3afa05d38044fd12e5e12390c8c64)

* Thu Oct 24 18:05:54 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Add support for catching netsnmpAgentException in example agents

  Up to now netsnmpAgent objects were created and their start() methods
  called without any error handling. But an upcoming change will introduce
  a new netsnmpAgentException that will be raised for error conditions, so
  the example agents need to know about them.

  (Git commit 436d754db8afbc4e728e5903b155cdefa38ddb6e)

* Thu Oct 24 15:17:01 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Explicitly advertise simple_agent.py's support for state dumping with
  SIGHUP

  Sending simple_agent.py a SIGHUP signal causes its current variable state
  to be dumped again. This is worth a more explicit advertising at agent
  startup.

  (Git commit 26f971fe48a50b629a5cad57a6f0a8f47811e20d)

* Fri Oct 25 19:23:05 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Fix netsnmpagent.py's docstring (forgot a word)

  (Git commit 5cdd84c153449781d17d92e6c38d41cec2a8550f)


Changes from v0.4.5 to v0.4.6
=============================

* Thu Oct 17 22:02:12 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Advertise support for alternative AgentX transports more explicitly

  We did already support alternative transports for the AgentX
  communication between subagents and master snmpd instances, that is, not
  just UNIX domain sockets but eg. also TCP ports. These are specified
  through transport specifications that follow the format described in the
  "LISTENING ADDRESSES" section in the snmpd(8) manpage.

  This change modifies wording that would suggest we supported alternative 
  UNIX domain socket paths only. It also adds a new script to run
  simple_agent.py against a snmpd instance over a TCP port, surprisingly
  named
  "run_simple_agent_over_tcpsocket.sh".

  (Git commit 1cc011ee12ba78dab6eeec25890e15767c55ea07)

* Thu Oct 17 21:43:50 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Move documentation on examples into own README in the examples directory

  To put the information closer to where you would be looking for it.

  (Git commit 3da5411e9cf7e9233d4ca0443dc1c529c94c0d7e)

* Tue Oct 8 17:55:31 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Update README with new credits

  (Git commit 3a0bd17d0934dd6620f30f177a286d821bfd51fc)

* Tue Oct 8 17:53:52 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Update README with net-snmp compatibility remarks

  (Git commit 9b4f81efc05c23f11f7689fcb7e71c39a9fcb4a9)

* Tue Oct 8 17:42:05 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Use WATCHER_MAX_SIZE instead of WATCHER_SIZE_STRLEN for 5.4.x
  compatibility

  We used to rely on net-snmp >= 5.5 behavior by setting a
  WATCHER_SIZE_STRLEN flag that didn't exist in net-snmp 5.4.x yet. For
  backwards compatibility we now use WATCHER_MAX_SIZE and update the used
  netsnmp_watcher_info structure's
  "data_size" field ourselves.

  Reported by Max "mk23" Kalika <max.kalika+projects@gmail.com>.

  (Git commit b15066fb9cd481c24ece736a68b2e22c2e483a67)

* Tue Oct 8 17:27:35 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Fix comment added in 60d51c93

  (Git commit 06fa1ded69269d5cc5798ec7f4057aacfa6c58b4)

* Tue Oct 8 17:24:22 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Deref watcher before trying to its max_size property

  The netsnmp_watcher_info structure returned by
  netsnmp_create_watcher_info is a pointer, so it must be de-referenced
  with ctypes' "contents" attribute before any of its properties can be
  set.

  Reported by Max "mk23" Kalika <max.kalika+projects@gmail.com>.

  (Git commit f2078fdabb022aeac48fd676433a0e381047c004)

* Tue Oct 8 16:30:17 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Add missing netsnmp_watcher_info fields definition to netsnmpapi

  Basically we do not need fields definitions for net-snmp structures that
  we never modify ourselves. However in this case we actually tried setting
  netsnmp_watcher_info's "max_size" field which resulted in a no-op.

  Reported by Max "mk23" Kalika <max.kalika+projects@gmail.com>.

  (Git commit 464d058c24008623fe7e6b4c0d9043fe19ac8151)

* Tue Oct 8 16:21:52 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Explicitly comment why we set watcher_info struct's max_size manually

  (Git commit 60d51c9324e1aae8964cb7d46cb1136e0e772d22)

* Fri Jul 19 18:20:24 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Adapt the Makefile's srcdist and rpms targets to the new examples dir

  (Git commit e96fd75fe905d2c922da4dacdf110082f50ba4bb)

* Thu Jul 18 17:16:02 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Undo part of fa6e2d9723 (much longer string in simple_agent.py)

  That line was intended for debugging only.

  (Git commit e194a756b6ca368d0984b2bbea8e420dccb91f14)

* Thu Jul 18 17:13:16 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Use local copy of netsnmpagent module for example agents

  So you don't have to "make install" first.

  (Git commit fa6e2d9723de724bf619713ad41097b79616d41b)

* Wed Jul 17 23:41:31 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Fix more overseen references to "example" in run_simple_agent.sh

  (Git commit 29f77605c12e839a755c122445789bc1f0706823)

* Fri Jul 12 00:05:19 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  simple_agent.py: Remove the caret that shouldn't be

  Narf...

  (Git commit 0e4aa6163a4555e846a0dc6b2a0221782a98d59f)

* Fri Jul 12 00:01:55 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Fix overseen references to "example" that should be "simple"

  Thanks to mjs7231 for reporting.

  (Git commit 3cb813f430a6d3ba4b3f3508f8f7801957b777de)

* Sun Jul 7 22:38:48 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Small update to the README

  - Phrase missing API stability less dramatically
  - Add TODO of SNMP notifications/traps

  (Git commit ca1f9ce7994a8db6a66efbd4729e8c814d6177f2)

* Sun Jul 7 22:36:51 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  New example threading_agent.py demonstrating asynchronous data updates

  The default simple_agent.py always blocked until certain events occured,
  eg. SNMP requests had to be processed, and only updated its SNMP objects 
  inbetween. Also SNMP requests couldn't be handled while data was in the 
  process of being updated. Thus here's a more real life-usable example
  that outsources data updating into a separate thread. It does however not
  address possible locking issues.

  (Git commit c8d08523d707a62d85205b5a0f0260340d38d9ea)

* Sun Jul 7 20:03:43 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Non-functional improvements to the simple agent

  simple_agent.py's heading comment block:
  - Add note on running the run_simple_agent.sh script
  - Add note on using sudo when starting the agent directly
  - Encourage user to use own <rosecret> instead of "public"

  simple_agent.py's counters code:
  - Prettify sort order of code blocks
  - Explain initialization value
  - Document that increment() is a counter object's method more explicitly

  run_simple_agent.sh:
  - Mention snmpget as well

  (Git commit dff681469369bb61145d0a814e6921d507eec33c)

* Sun Jul 7 14:59:13 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Rename example agent to simple agent

  We're going to have other example agents in the examples/ subdirectory as 
  well, therefore the name "example agent" would be ambiguous. The MIB and
  its contents have been renamed, too.

  (Git commit 4fadc259ded94736bfd8dd665577fa5877d00faf)

* Sun Jul 7 14:49:05 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Move example agent into new subdir examples/

  (Git commit 53f47da9ae4fe1a7b462e57ddb7b6e36abd72931)


Changes from v0.4.4 to v0.4.5
=============================

* Mon Apr 29 15:05:26 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Makefile/RPM spec file: Cosmetics and smaller cleanups

  (Git commit b3e7d35531f2f5c983798e15f237a18b59a5233b)

* Mon Apr 29 12:57:57 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Use $@ instead of explicit filename references in ChangeLog Makefile
  target

  (Git commit 01abbd6e525a8f05fd7bdc2881be8be750c6ef42)


Changes from v0.4.3 to v0.4.4
=============================

* Sun Apr 28 00:51:19 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Use more accurate variable name $PKGREMAIL when building RPM spec file's
  %changelog section

  The one who uses the .spec file is not necessarily the $AUTHOR of
  python-netsnmpagent.

  (Git commit 1fc4d6c743dd5827592c594882d264a754753681)

* Sun Apr 28 00:49:42 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Use C locale to generate dates for RPM spec file's %changelog section

  RPM might otherwise complain about an "invalid date format" when building
  the package..

  (Git commit 3e2623d78cd326b1ec87a3d768e871c245b9a8e7)

* Sat Apr 27 19:16:50 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Automatically generate %changelog section for RPM spec file

  The spec file uses a different changelog style than the ChangeLog file,
  which would be too verbose for this purpose. Usually package maintainers
  note changes to the spec file itself here as well and often give a more
  high-level summary of changes of the software being packaged. Our
  automatically generated changelog will not be of the same quality as we
  only indicate the timestamps a version was tagged and an "Update to
  version x.y.z"-style message. But until now we didn't use the ChangeLog
  section at all. And package maintainers can still replace it with a more
  detailed, manually maintained version.

  (Git commit e4a21d8fe50e1a86c558101a5f5e1e55015c58e8)

* Sat Apr 27 16:37:25 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Collect RPMs built in dist/ and clean up RPM build dirs

  (Git commit d184c128c339846fe2188f36fc94b338745b31d1)

* Sat Apr 27 16:34:41 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Generate RPM spec file along with source distribution archive

  Utility of the spec file is increased if it has python-netsnmpagent's
  version number already specified -- the old way of requiring a RPM
  "--define" only worked when the Git repo was available. Now one can take
  the generated dist/python-netsnmpagent.spec along with the source archive
  and simply copy it some build host and build.

  (Git commit 5a8f0e5afa12e1bb67df45531dd51b47ab33935c)


Changes from v0.4.2 to v0.4.3
=============================

* Wed Apr 24 11:57:29 2013 +0200 - Pieter Hollants <pieter@hollants.com>

  Clear counter variable also when a Table object is cleared

  (Git commit b4e19f42fa587e135c74785a39090df7a7c7bf83)


Changes from v0.4.1 to v0.4.2
=============================

* Tue Mar 26 19:16:13 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix specfile so it builds on SLES11 and SLES11SP1, too

  (Git commit 8e186e646b6fb8cfe53882b930f3a3a5b028f138)


Changes from v0.4 to v0.4.1
===========================

* Tue Mar 26 15:55:24 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fixes to the spec file so it builds for openSUSE, SLES11 and RHEL6

  (Git commit b1b1cfe4b746b32142c36fd159b2bbabe0454d18)


Changes from v0.3 to v0.4
=========================

* Sat Mar 23 14:30:04 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add missing prototypes for init_mib() and
  netsnmp_table_dataset_remove_and_delete_row()

  (Git commit 5c4618526f4def25479503853a67c77d72dfc8ae)

* Sat Mar 23 14:16:47 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add prototype for netsnmp_table_dataset_remove_and_delete_row

  (Git commit 8ec11c314dde071ad073dd8ae08c5b67883b2298)

* Sat Mar 23 14:15:23 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Abstract netsnmp_table_dataset_remove_and_delete_row from actual library
  as well

  Another function that used to be in libnetsnmphelpers in net-snmp <5.6
  and now is part of libnetsnmpagent.

  (Git commit c068cace7f3aba096705cdc923ca99442bfb1e4e)

* Tue Mar 5 23:30:31 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Update README to reflect commit activity

  This is more and more getting fun :-)

  (Git commit a6777f189618f413c991d456fb27fe4ba8fbdbb1)

* Tue Mar 5 23:29:38 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Formatting for consistent code style

  (Git commit 92385a159bc7249c0c508fc068292b088c652541)

* Tue Mar 5 22:03:37 2013 +0000 - Steven Hiscocks <steven@hiscocks.me.uk>

  Add increment method to asntypes COUNTER and COUNTER64

  (Git commit 7d3d7058c01d09086b8ecc85f443cd709f1b1ec3)

* Wed Feb 27 00:50:56 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix ChangeLog generation for the case when we're on a tag

  The mechanism erroneously tried to generate a changelog "between vX.Y and
  vX.Y" when we're on that very tag.

  (Git commit da08641c0ccfe1b43038f3bd840bbc3b2d5253f5)

* Wed Feb 27 00:46:13 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Include documentation and example files in built RPM

  Seeing that the module will be installed on many plattforms in form of an 
  RPM, it is wise to have the documentation files and also the example 
  agent and its files included.

  (Git commit ccf0a05b60ae7a4efa7468e1a3ae7fd2b7cb00ed)

* Tue Mar 5 18:21:15 2013 +0000 - Steven Hiscocks <steven@hiscocks.me.uk>

  Add optional argument to check_and_process as to whether to block

  (Git commit eb2d9b8822a4aed6bf10be55b510429049c94122)


Changes from v0.2 to v0.3
=========================

* Wed Feb 27 00:50:56 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix ChangeLog generation for the case when we're on a tag

  The mechanism erroneously tried to generate a changelog "between vX.Y and
  vX.Y" when we're on that very tag.

  (Git commit 78ebb0940c6de00a008e2e2321e9bcf362a90514)

* Wed Feb 27 00:46:13 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Include documentation and example files in built RPM

  Seeing that the module will be installed on many plattforms in form of an 
  RPM, it is wise to have the documentation files and also the example 
  agent and its files included.

  (Git commit c3c9456cd330c99f6bcc6d69c7e1ad0c433fd4a1)

* Tue Feb 26 11:51:08 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Automatically generate ChangeLog from git commits

  We now have a ChangeLog automatically generated from the Git history, so
  users who do not follow the proceedings in the Git repository itself can
  see what has changed between each version. The ChangeLog is built
  whenever a source distribution archive is generated. It can also be
  explicitly built by using "make ChangeLog".

  (Git commit c54fc95c4f7ba3f26c776871d418df54abe704d7)

* Tue Feb 26 11:33:39 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add MANIFEST.in file so source distributions include necessary files

  distutils by default expects LICENSE.txt, not LICENSE. It also needs to
  be explicitly told about our example agent and associated files.

  (Git commit b394bdeaf55c2ad5903c3fbd90409cd2017780bf)

* Mon Feb 25 20:30:20 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Replace hardcoded version number with latest Git tag

  With this change, the version number is no longer hard-coded inside
  setup.py. Instead, the version number is derived from the latest git tag
  using "git describe". The Makefile (which is now more than a pure
  convenience Makefile) will generate setup.py from setup.py.in
  (which has been renamed accordingly), so that a source distribution
  (.tar.gz) will have the correct version number inside.

  As a special rule, whenever the Git checkout is not at a tag, "git
  describe" will generate a string similar to "0.2-21-g0e10fca", indicating
  that there have been 21 commits since the last tag "0.2" and the latest
  commit is g0e10fca. We translate this to "0.2_next21_g0e10fca" so a.) RPM
  does not complain about the dashes (it doesn't allow them in its
  "Version" field) and b.) the "next" indicates that this is a forthcoming
  version.

  (Git commit 7e920bb4e372f29cc3e0167224689e15bed14104)

* Mon Feb 25 18:52:22 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  API change: swap "oidstr" and "initval" arguments for scalar variables

  The function signature for create_vartype_class() has changed and as such
  the constructor method signature for all classes using the @VarTypeClass
  decorator, that is, all classes representing SNMP scalar variables, eg.
  Integer32(), Unsigned32() etc. "initval" now comes first so that in
  scenarios where we just a SNMP variable without the intent of registering
  it we can simply write

    agent.Integer32(20)

  instead of

    agent.Integer32(initval=20)

  which, of course, implies "oidstr" == None. The former construct is of
  much more use when being interpreted as "initval" instead of "oidstr" as
  in

    agent.Integer32("EXAMPLE-MIB::exampleInteger32")

  which continues requiring an "oidstr=" prefix to work.

  This means that if you have already written agents using
  python-netsnmpagent and you did not follow the style in example_agent.py
  with explicit "initval=" and "oidstr=" qualifiers, you WILL have to adapt
  your code.

  (Git commit 0e10fca0ce6c34cd6730d3fc73158fe40386e14d)

* Mon Feb 25 18:51:50 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix typo in README (SNMP contents, eh?...)

  (Git commit 77dce9d7c43fe2ad68fcdd44917f0e2af73ce56f)

* Fri Feb 22 19:58:43 2013 +0000 - Steven Hiscocks <steven@hiscocks.me.uk>

  Fix counter64 incorrectly setting low and high in c structure

  (Git commit 809193cb1d4549f9849164aa7126972894b99e76)

* Fri Feb 22 18:18:48 2013 +0000 - Steven Hiscocks <steven@hiscocks.me.uk>

  Handle wrap of 32bit and 64bit counters

  (Git commit 9a2c4430e8011bdd6f2662bef90d63909c6d8003)

* Fri Feb 22 14:06:47 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Distinguish libraries when errors in library loading occur

  (Git commit 5c61efa9ef337641bfd26dc98e8600a8afba74d4)

* Fri Feb 22 13:54:16 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Update README with credits

  (Git commit 7b5fd128712073343a5c69025c6972dde53f1e02)

* Fri Feb 22 13:52:43 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix example agent's working with SNMP contexts

  (Git commit 1d9b0bbc92f02d99c86b2106c5a00598250ba73e)

* Fri Feb 22 13:12:04 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Abstract certain functions from actual library for compatibility with
  net-snmp <5.6

  From net-snmp 5.5 to 5.6, all code from libnetsnmphelpers.so got
  integrated into libnetsnmpagent.so. While this doesn't break C programs
  since ld-linux.so will take care of dynamically resolving referenced
  symbols, with ctypes all prototype definitions and functions calls always
  depend on a particular libX handle.

  Therefore we now test using netsnmp_create_watcher_info whether that
  function is available in libnetsnmpagent and fall back to
  libnetsnmphelpers otherwise. The remaining code now uses libnsX to
  abstract from the actual library used.

  (Git commit 7f8ec59e26cd2ada809410b053d29a59f0efb3e3)

* Fri Feb 22 13:05:03 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Make comment about net-snmp 5.4.x workaround more verbose

  (Git commit d9388eeae15119ff4c5bd3e87578e4ff83b682e3)

* Fri Feb 22 12:15:51 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Work around unresolved dependencies bug in net-snmp 5.4.x libraries

  (Git commit 792977b5657e200a13794257bd12622b8d127021)

* Thu Feb 21 23:43:24 2013 +0000 - Steven Hiscocks <steven@hiscocks.me.uk>

  Added context argument to getRegistered and getContexts method

  (Git commit 830835b82bb7b976d8e57a28b2e0cbb1157aa2ff)

* Fri Feb 15 13:37:45 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Throw out SuSE-specific python macros from RPM specfile

  First of all, this module is noarch by definition. Second, SuSE macros
  won't be available on RHEL et al.

  (Git commit 9c0409d27624decaa309c998e56787f45ae29b51)

* Fri Feb 15 13:20:50 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Create BUILD directory during RPM build (required for SLES11SP2)

  (Git commit 6e66f11ff16e44ae686803980f00bf9121a60f78)

* Thu Feb 14 10:42:48 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Initialize variable so we can detect missing snmpd correctly

  (Git commit 53960d8547fdb648c86e5948a2a4db27d2470394)

* Sun Feb 10 12:00:37 2013 +0000 - Steven Hiscocks <steven@hiscocks.me.uk>

  Added ability to set context name for SNMP variables

  (Git commit ef457b1ea98cdf1a09bfaf705d7f7b5c6f7a6ffd)

* Mon Jan 21 14:41:16 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Rename "PersistentDir" option to "PersistenceDir" and streamline options
  in example agent

  (Git commit fe0d6b44964b8973f0dc0dc6f6b723d5630b3557)

* Mon Jan 21 13:33:29 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Bump year in copyright notices

  (Git commit f3d99ec7b4c36f145cfcc28cbf3bc5d163462f64)

* Mon Jan 21 12:14:28 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix Makefile targets and RPM building

  (Git commit 8b25ca9ced0997626a6eb25851c209e4e0f479b7)


Changes from v0.1.1 to v0.2
===========================

* Mon Jan 21 12:13:06 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Increase version number to 0.2

  (Git commit 1ba10cab7be6389d65c208df7a5c52c0bebb4f51)

* Mon Jan 21 12:12:32 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add local .spec file and Makefile target for RPM building

  (Git commit 116f4b4a9f184764bf3fea0dfc8cc4b9c2b6d668)

* Mon Jan 21 11:02:06 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Synchronize Makefile style with my other projects

  (Git commit 446a70cfa71457b463d70e834241600f58e9965c)

* Mon Jan 21 10:55:49 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix cleanup of *.pyc files

  (Git commit fc66e3ef6ba1b0374c81d9060cfa8a8bd47cee4d)

* Mon Jan 21 10:30:10 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Remove duplicate error handling statements

  set -e = set -o errexit

  (Git commit cde7b4908fca46ade88eed199d0d9f05c06d7a4d)

* Mon Jan 21 10:29:39 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Synchronize heading comment block style with my other projects

  (Git commit 32045ecd31ef39accdebaa46d0b620b82fe61e1e)

* Fri Jan 18 18:49:36 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add missing .0 index for scalar variables

  Scalar variables must be registered with register_watched_scalar(), which
  automatically adds the ".0" suffix required by the SNMP standards.

  (Git commit 0dedf78627ccd9fd6f32361dd1fc82150e5b6a20)

* Wed Jan 16 14:13:50 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add a function to clear the table (ie. remove all table rows)

  (Git commit fc2ba0976ec85bc92cd29c71abd348976270d7d8)

* Mon Jan 14 14:39:25 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Support auto-update of row counter variable for tables

  A SNMP variable of an integer type can be created and passed in to the
  Table() constructor in the "counterobj" property. netsnmpagent will then
  auto-increase this variable's value whenever a new row is added with
  addRow(). Naturally the variable should be exposed read-only.

  (Git commit f607142140200a0acb16bb442332e8d3013fd74c)

* Mon Jan 14 14:38:27 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Make the return value of integer variables types ordinary integers unless
  absolutely necessary

  (Git commit 8489ea8998b653af3f6df3367f4aa59ca9c38ddb)

* Mon Jan 14 14:13:43 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Rename poll() to check_and_process() for consistency with net-snmp API

  The name "poll" wasn't really intuitive, anyway.

  (Git commit f2558fee86bd1711893f93f429bb6ea642d21dfb)

* Fri Jan 11 14:54:57 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Update README

  (Git commit a2ae83446fb90d2d50080ac2d6f9b1a30bf41940)

* Fri Jan 11 14:50:53 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Make Makefile clean up *.pyc files as well

  (Git commit 7f9763d3cc835c56005a204f3a6c3ac4946a2a04)

* Fri Jan 11 14:49:36 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Correct dist target in convenience Makefile

  (Git commit 49524931c09337b0d8bc279d20e480d46e4421a9)

* Fri Jan 11 13:44:03 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add dist directory generated by distutils to .gitignore

  (Git commit 1e6610b72a81fc291cb7e9e52d69e660cb919ac7)

* Fri Jan 11 13:43:41 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add MANIFEST generated by distutils to .gitignore

  (Git commit 8e21655794de6f466b3d7152ae70903a12d4ad04)


Initial version 0.1.1
=====================

* Fri Jan 11 13:36:35 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Bump version number to 0.1.1

  (Git commit 34158a2751b42764559930a03e6e4a1328f03709)

* Fri Jan 11 13:35:43 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Modify License specification to conform with openSUSE guidelines

  (Git commit 87f978986c9e466cae82e9bb6c4e2231c27888f0)

* Fri Jan 11 13:34:30 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Remove the she-bang from netsnmpagent.py and netsnmpapi.py

  These are Python modules not supposed to be called directly.

  (Git commit 2a482be4b5f2b4b58867660f20f98e13086ac020)

* Fri Jan 11 13:26:10 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Clean up dist directory as well

  (Git commit b0ea63d4658eeca4a69051e5cae63678e2af6024)

* Fri Jan 11 11:22:02 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add convenience Makefile

  (Git commit d0ac759c8f1bee0dbf5044023d1b1fd526e59189)

* Fri Jan 11 11:21:16 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Remove python- prefix from package name

  (Git commit 8f4fb7377abf39669245506d3b0020e7bfffdee8)

* Thu Jan 10 17:19:10 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Update README

  (Git commit 37be34d9cf4cd95ae08c084c9b0c91dd8aa9b202)

* Thu Jan 10 17:08:42 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add distutils-style setup.py script

  (Git commit b8f015747f6bcd9413bd1094e9dd88628825e011)

* Thu Jan 10 16:50:39 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add own class for IpAddress to offer more natural Python interface

  IP addresses are stored as unsigned integers, but the Python interface
  should use strings so that IP addresses can be given in their natural
  form, ie. 127.0.0.1.

  (Git commit 86cc5a3bed54991eafa171becf30175c1efb451f)

* Thu Jan 10 15:42:54 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Make Table value() method return integer-style values for integers, not
  strings

  (Git commit 0419cb46d68ab0358babb5af2fbcfed87947fe7c)

* Thu Jan 10 15:36:27 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Let pprint module do the variable dumping in example agent

  (Git commit 6af9e9677e243e7601fba0a6e3ac0c40607e83d9)

* Thu Jan 10 15:23:54 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Improve Table value() output

  Row indices were returned incorrectly. Also make the returned object a
  dictionary containing dictionaries that match the value() output for
  Integer32 etc.

  (Git commit db79e071de38623ef4acb01e96fdf7293ed526cd)

* Thu Jan 10 15:22:24 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Of course one should use existing data types first...

  (Git commit c0fab40bb4c934fada5821c9952e9113274f70d2)

* Thu Jan 10 15:21:03 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add a second example table to demonstrate different index types

  (Git commit 628cb7b9a5d4dce83e9938806b28947a2dc62380)

* Thu Jan 10 15:09:08 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Cosmetics in example agent's DumpRegistered() output

  (Git commit 305d0240414f8e3b8dac35b9132a8ce5e5cc68e5)

* Mon Jan 7 11:51:38 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Make run_example_agent.sh find snmpd within /usr/local as well

  (Git commit a5cbdc7bde9a5f323cb28c4678efd78cced77ce1)

* Fri Jan 4 14:54:35 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Cosmetics

  (Git commit b5eb7c4bdca5957f1e863953730541a2060a79ed)

* Fri Jan 4 14:49:39 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add first implementation of value() method for tables

  (Git commit 2e204946984db2b3ad65b662229d82e4e84b955e)

* Fri Jan 4 14:47:09 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add more error handling for netsnmp_ds_set_* calls

  (Git commit 7e6f8eddfb8b71f2d60690136df0b52a709e7a62)

* Thu Jan 3 16:18:31 2013 +0100 - Pieter Hollants <pieter@hollants.com>

  Add support for Counter64 data type

  This one requires actually some help since inheriting from
  ctypes.Structure alone does not work. net-snmp uses a C structure of two
  long variables internally to store the Counter64 value, so we need to
  provide wrapper functions for that.

  (Git commit a49b3a6a60e54aa632fca390a3d3afe16534adfd)

* Wed Dec 26 15:08:18 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Update README

  (Git commit cca2b90091e1bbf533c7a6cb34d6dbeacef24e74)

* Wed Dec 26 14:58:45 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix typos in README

  (Git commit f515bafa980673a3353308c2dc69402bcbf49157)

* Wed Dec 26 14:46:25 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  First implementation of table support

  Among the existing scalar variables, netsnmpagent now supports SNMP
  tables. Table objects are defined in terms of the types of the row
  indexes, the number of columns, their types and their default row values
  and whether they are extendable or not (ie. whether new rows can be added
  through snmpset). After creation (and registration), rows can be added
  and individual cell contents set.

  This implementation does not support the value() method for tables yet.

  (Git commit e3c2b42e344544145b2e1335d12327247bf03544)

* Wed Dec 26 14:40:47 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Use a string index type for the exampleTable

  In preparation for the upcoming table support, the index type for
  exampleTable (exampleTableIndex) was changed to a string type since it'll
  make for a more advanced example than an integer type.

  (Git commit f696b7fe11e60345130b5e53068c3206691f8c01)

* Wed Dec 26 00:07:04 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Move net-snmp API stuff into own file and define C function prototypes

  Everything ctypes and libnetsnmpagent-related has been moved into the new
  file netsnmpapi.py that gets imported by netsnmpagent.py. All netsnmp
  functions called are now also defined in terms of argument and result
  types, similar to C prototypes. To achieve this, the libnetsnmpagent
  handle is now defined globally instead of being part of the netsnmpAgent
  class.

  (Git commit f9114e0cc22665afd37abf224ab9f10861e5c03e)

* Sun Dec 23 22:34:06 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add DISPLAY-HINT for exampleOctetString so UTF-8 encoded strings can be
  set properly

  (Git commit 44713eb7aba8a80a5747d73775bd427e64a3bd61)

* Sun Dec 23 22:27:21 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Correct max_size calculation for scalar SNMP objects

  (Git commit 77b9fb048e2ed477b654475247f952acdef6b439)

* Sun Dec 23 22:24:03 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Cosmetical optimization of SNMP object's cref() method

  (Git commit a25799afe631c2689e775e7c167263a69a7b6a2f)

* Sun Dec 23 22:20:59 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Reunify SNMP object creation and registration again

  It turned out to be unnecessarily complex to maintain consistency with
  the seperation of SNMP object creation and registration as introduced in
  0f7a4cdbf4677ebae52e0abee2acacd148c50491. Yet, that change is not
  literally undone:
  - Registration of an SNMP object must now be specified at object creation
  time by passing an "oidstr", if desired. If left off, the return object
  will remain unbound to the MIB and can be used mostly for object property
  inspection. As a consequence, register() was removed again. The new
  "writable" parameter to the object's creation method replaces
  register()'s "allow_set".
  - Previously, objects were created and if register() was called on them,
  it called a defined callback method. Now, the object's creation method
  calls the renamed _prepareRegistration() method instead and incorporates
  _registerWatcher() functionality.
  - The variable type's props array no longer needs a "register_func"
  member.

  (Git commit cb0bb0d44eb4be5c6f9e98920f269020bae2e145)

* Sun Dec 23 21:48:05 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Improve comment for DisplayString method

  (Git commit 5a85195fa56046f50d1114ba2ef5ab5e537b6fb7)

* Sun Dec 23 21:39:38 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  example_agent.py cosmetics: move agent.start() call before handler
  definition

  (Git commit 5270e9653eaa5fcc002429b4402aa1fbe197d1c5)

* Sun Dec 23 21:28:14 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add Python shebangs for netsnmpagent.py and example_agent.py

  (Git commit 7172cd2edc3aa38be50c5f4c4fe689ae1d4d8031)

* Thu Dec 20 12:22:32 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix wrong table column number in EXAMPLE-MIB.txt

  (Git commit f12e5c9ff298493ffab58a27f9702485a4b6e4e1)

* Tue Dec 18 14:50:00 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Generalize for SNMP tables, separate SNMP object creation and
  registration

  This change generalizes netsnmpagent in that we now deal with "SNMP
  objects" instead of just SNMP variables. This is in preparation of the
  upcoming support of SNMP tables.

  Because of the semantics associated with how we will wrap tables, SNMP
  object creation and registration under a certain OID are now separate
  tasks. SNMP objects now must be explicitly registered (see
  example_agent.py).

  Further details of the changes:
  - Because registering a certain SNMP object is object-dependent, the
  VarTypeClass() decorator now expects a new member "register_func" that
  specifies the callback function that will be called by the new generic
  register() method.
  - register() incorporates the former oidstr2oid() method
  - The VarTypeClass() decorator's variable registration code went into
  register() and the new callback function _registerWatcher() as well.
  - Variable type class instances now possess most of the atttributes from
  their props[] array such as "asntype" and "flags"
  - _data_size and _max_size were not always set correctly
  - Variable type class instances now possess a new cref() method which
  always returns the correct pointer to the enclosed _cvar, depending on
  the variable type

  (Git commit 0f7a4cdbf4677ebae52e0abee2acacd148c50491)

* Wed Nov 28 13:30:04 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add run_example_agent.sh script to make running example_agent.py easier

  example_agent.py has now learned two command line options:
  -m/--master-socket allows specifying the Unix domain socket that
  python-netsnmpagent will use to connect to the master snmpd agent and
  speak AgentX. -p/--persistent-dir is passed on the net-snmp library and
  sets the directory the library will use to store persistance information.

  Both parameters are used by the new run_example_agent.sh script to be
  able to setup a net-snmp instance running under the current user and
  independent from a eventually running system-level snmpd service. They
  will also be used by upcoming automatic tests.

  run_example_agent takes care of
  - creating a temporary directory
  - creating a minimal snmpd configuration that especially places all
  system file/directory references into the temporary directory instead
  - running snmpd with additional necessary parameters
  - giving the user guidance as to the right net-snmp CLI utility commands
  - running example_agent.py with suitable parameters
  - cleanup of the temporary dir upon exit

  (Git commit c54e1a67f32fcc086aa0ee4ab8b567bab2391db3)

* Wed Nov 28 12:55:57 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Rename example.py to example_agent.py

  (Git commit 6db1ac747835f512aaa1783b1a5a7350429a99c9)

* Wed Nov 28 11:58:25 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add support to modify persistance directory

  (Git commit 92388737919b9eb2b6bdc170c41e1c13c06fc21b)

* Wed Nov 28 00:45:06 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Minor cosmetics

  (Git commit ee5245d45ff319e30b8f2b8ed4c63463e1b14b62)

* Wed Nov 28 00:41:37 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix and expand EXAMPLE-MIB

  - Rename IPAddress to IpAddress
  - Replace exampleString with exampleOctetString and exampleDisplayString
  - Add missing IMPORTs for Counter32, TimeTicks and IpAddress to IpAddress
  - Add exampleCounter, exampleTimeTicks, exampleIpAddress,
  exampleOctetString and
   exampleDisplayString to exampleMIBScalarsGroup conformance group

  EXAMPLE-MIB.txt should always be validated with smilint.

  (Git commit 3798704e9b4633ebf4a398251e89881b3986dffd)

* Wed Nov 28 00:29:12 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Use single C variable reference and mutable string buffer

  String handling was broken. We must use ctypes.create_string_buffer with
  a defined MAX_STR_SIZE instead of ctypes.c_char_p because the latter
  creates a buffer which a.) Python considered immutable while "snmpset"
  would happily write into it and b.) had an implicit maximum size
  depending on the initial creation string, causing possible memory
  corruption when "snmpset" would be used with a larger string.

  It also didn't make much sense to re-create a new ctypes.* instance upon
  each SNMP variable update from within the Python agent, because the
  integer types were mutable before and strings have become so.

  We fill out netsnmp_watcher_info's "max_size" properly now. Required for
  string types.

  Also discarded the special handling for strings, special handling now
  depends on props["flags"] only.

  Reordered things in define_and_register() and accordingly renamed it to
  register_and_define().

  Added more verbose comments about the process of SNMP variable
  registration.

  (Git commit 65ba9c1223f347eaa5d347c334aa646e61102326)

* Wed Nov 28 00:00:38 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Make example.py dump vars when SIGHUP is received

  Also give exampleString a friendlier default value.

  (Git commit 98d567461f4ae3f4479bbbabfd4b3e02431ae05a)

* Tue Nov 27 12:45:11 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Implement special handling for c_char_p variable types more explicitly

  We need a special case distinction for c_char_p (char *) variables during
  variable creation anyway (doesn't use ctypes.byref()), so no need for
  props["flags"], which was different for c_char_p only.

  Also fix watcher info's max_size as 0 as it is only used if the
  WATCHER_MAX_SIZE flag is set which we don't use.

  (Git commit 9b4297f4c87b3c16b1e8beaa4aa9010b96985316)

* Mon Nov 26 14:30:54 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Fix check that vars can't be added after agent start

  (Git commit ade8000db69ed9520676af6fa6f886ec76ed4f61)

* Mon Nov 26 14:29:38 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Cosmetics to make line lengths <= 80 chars

  (Git commit 14f8afa4e82c9adb2f52eaf240385453b8606993)

* Mon Nov 26 14:20:31 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Cosmetics

  (Git commit f328fbe1459bf9d8609bc4bdb84a5a580de794c6)

* Mon Nov 26 14:18:52 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Streamline SNMP variable class definition

  Before, there was a netsnmpVariable class and Integer32, Unsigned32,
  DisplayString32 etc. classes deriving from it (and an intermediate class
  netsnmpIntegerVariable). The variables carried the SNMP registration
  intelligence. In addition, netsnmpAgent had an addVar() method and proxy
  methods named liked the classes, taking care of creating variable
  instance and adding them to an agent's internal variable registry.

  Now, netsnmpAgent features a VarTypeClass decorator method that gets
  applied to methods Integer32, Unsigned32, DisplayString32 etc. which do
  nothing but return a dictionary with variable type properties. The
  decorator transforms these functions so that they a.) define the suitable
  class b.) create an instance and c.) register that instance with
  net-snmp. The classes themselves are now nothing but wrappers for the
  ctypes variables. So the registration intelligence (and oidstr2oid()) is
  back in netsnmpAgent itself again.-

  (Git commit b2e4c4d50c53e070e6635e2051873f1e2104516d)

* Mon Nov 26 13:50:36 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Let example.py print the registered vars for debugging and ease of use

  (Git commit 3aa9ac50fd3255fbf5695a1aaab61fd1b818c300)

* Sun Nov 25 23:49:19 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Major rewrite of SNMP variable handling and exposed API

  Before, the code using the module (eg. example.py) had to own
  ctypes-style variables and deal with conversions etc. netsnmpAgent just
  provided a registration function.

  Now, netsnmpAgent offers methods that return classes inheriting from a
  base class, netsnmpVariable, one class for each variable type. Class
  creation requires specification of the OID to register for and indication
  whether the variable should be writable using SNMP requests. Each class
  obtained this way offers value() and update() methods, called by the
  client at its decretion. See example.py how much shorter and nicer this
  looks.

  The interface is not quite polished yet, currently netsnmpVariable and
  deriving classes share the same namespace as netsnmpAgent and require an
  "agentlib" argument to get access to netsnmpAgent's libnetsnmpagent
  handle. This is currently provided by an addVar method for which there
  are in turn wrapper functions named after each variable type. This could
  need some improvement, probably using a factory method and/or decorators.

  In other news:
  - Moved net-snmp constants to the module level to avoid accessibility
  problems from within the new netsnmpVariable class and inheriting
  classes.
  - Removed debug-style print statement that spit out the name of each
  loaded MIB upon agent startup
  - Simplified library loading code since it looks like libnetsnmpagent
  alone will suffice.

  (Git commit e4fc68bfdf93998fd622d96d326443ef87a124d6)

* Sat Nov 24 02:05:54 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add support for IPAddress variables

  (Git commit 4ffe76d0e967332994ea1da1d5b0c6ee6237bae3)

* Sat Nov 24 00:56:22 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add support for TimeTicks variables

  (Git commit fbe5e01239396c7924816bf831e8e78dabc826e2)

* Fri Nov 23 23:42:53 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Cosmectic fix for correct size of Unsigned32 variables

  (Git commit 1e6973be62966a0cb4ae6703d9a612d40d863e47)

* Fri Nov 23 23:32:46 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add support for Counter32 variables

  (Git commit 7563a6c16491efc86484426218b355ef9236fcf0)

* Fri Nov 23 17:51:54 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Added TODOs

  (Git commit e1c7400bbfe951523f15139e6c4c3f85e0942410)

* Fri Nov 23 17:41:00 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add LICENSE

  (Git commit 2eb7fb848c1cede41018a340b656feadcd131fbf)

* Fri Nov 23 17:40:15 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add a first version of a README

  (Git commit 609ee8edc197914ff0fb1b7d6b955f273ac080db)

* Fri Nov 23 16:28:32 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Added .gitignore to ignore *.pyc files

  (Git commit 62574958cf3ff02497bfb07bd9e10a17709947fb)

* Fri Nov 23 16:10:31 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Cosmetics

  (Git commit c06ba86f1df7d515b0567559e5ff6483cb302a3b)

* Fri Nov 23 16:10:31 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Add read-only variables support

  (Git commit f2def554a8cb54b0ea593da42ffec4daddb97a25)

* Thu Nov 22 22:58:24 2012 +0100 - Pieter Hollants <pieter@hollants.com>

  Initial commit

  (Git commit ff76a9d3fb6148ed4a6d588358840984eee14e24)