1 SNMP Release Notes history
1.1 SNMP Development Toolkit 4.3
Version 4.3 supports code replacement in runtime from/to
version 4.2.
1.1.1 Improvements and new features
-
[manager] Improved asynch error reporting.
Own Id: OTP-5637
Aux Id: Seq 9970
-
Added support for The Advanced Encryption Standard (AES)
Cipher Algorithm in the SNMP User-based Security Model
(RFC 3826). Both agent and manager.
Martin Björklund
Own Id: OTP-5490
1.1.2 Reported Fixed Bugs and Malfunctions
-
[manager] Reset of USM-cache when unregister agent.
Own Id: OTP-5636
Aux Id: Seq 9970
1.1.3 Incompatibilities
-
1.2 SNMP Development Toolkit 4.2
Version 4.2 supports code replacement in runtime from/to
version 4.1.5.
1.2.1 Improvements and new features
-
[manager] Added another get, get-next and set function
with another argument,
ExtraInfo
(see
synchroneous get,
asynchroneous get,
synchroneous set,
asynchroneous set,
synchroneous get-next and
asynchroneous get-next).
This argument is passed on to the net-if process. The net-if
process included in this application makes no use of this
info, but other implementations might.
Own Id: OTP-5574
Aux Id: Seq 9850
-
[manager]
report
message with incorrect security info
(e.g. securtyModel and/or securityLevel) was ignored (dropped,
except for incrementing the proper error counter) even if all
other info was correct. This has been changed so that in this
situation, the user will be informed, either via the
return value from a synchronous call (see
synchroneous get,
synchroneous set and
synchroneous get-next)
or via a call to the handle_error callback function.
Own Id: OTP-5578
Aux Id: Seq 9850
-
[manager] Added a
unregister_usm_user function.
Own Id: OTP-5580
Aux Id: Seq 9850
-
[agent] Added new functions to get lists of all tables,
which_tables,
and variables,
which_variables,
known to the agent.
Own Id: OTP-5590
1.2.2 Reported Fixed Bugs and Malfunctions
-
[manager] Incorrect SHA-key length check when
updating usm-user info (should have been 20 but
was 16).
Own Id: OTP-5579
Aux Id: Seq 9850
-
[compiler] Incorrect error report when the name of the
field and object is the same.
Kostis Sagonas
Own Id: OTP-5591 (dialyzer)
-
[manager] Arguments Port (third argument) and CtxName
(fourth argument) where swapped in
function snmpm:g/5
when forwarding call.
Kostis Sagonas
Own Id: OTP-5592 (dialyzer)
1.2.3 Incompatibilities
-
[manager] The
snmpm_network_interface
behaviour has changed.
One more argument (ExtraInfo) was added to the
function send_pdu (see
send_pdu).
Own Id: OTP-5574
Aux Id: Seq 9850
1.3 SNMP Development Toolkit 4.1.5
Version 4.1.5 supports code replacement in runtime from/to
version 4.1.4, 4.1.3, 4.1.2, 4.1.1 and 4.1.
1.3.1 Improvements and new features
-
[agent] Add mapping of notification oid to aliasname.
Martin Björklund
Own Id: OTP-5562
-
[manager] Late (async) reply incorrectly delivered to
user via handle_pdu instead of handle_error.
Own Id: OTP-5506
Aux Id: Seq 9804
1.3.2 Reported Fixed Bugs and Malfunctions
-
[manager] Security level handled incorrectly.
Own Id: OTP-5564
Aux Id: Seq 9850
-
[manager] (v3) Encryption/decryption failure.
Own Id: OTP-5560
Aux Id: Seq 9850
-
[manager] Cannot handle version-1 traps.
Own Id: OTP-5557
Aux Id: Seq 9850
-
[manager] Set-request without specifying the variable
type failed. The type of the oid had to be found in the
loaded MIB. This lookup was erroneous.
Own Id: OTP-5556
Aux Id: Seq 9850
-
[agent] Error's reported by the SecModule (v3) when
generating outgoing message was not handled correctly
in message processing dispatcher module.
Own Id: OTP-5550
-
[manager] Error's reported by the SecModule (v3) when
generating outgoing message was not handled correctly
in message processing dispatcher module. And also when
encryption failed, the real error was masked into another
error.
Own Id: OTP-5548
Aux Id: Seq 9804
-
[agent] Failure to stop the snmp application when
started with the old config type.
Own Id: OTP-5547
Aux Id: Seq 9842
-
[manager] User unregistration after reboot causes process crash
(snmpm_server).
Own Id: OTP-5539
-
[manager] Security engine id lookup errors.
Own Id: OTP-5508
Aux Id: Seq 9804
-
[manager] Registering of USM users erroneous.
Own Id: OTP-5505
Aux Id: Seq 9804
1.3.3 Incompatibilities
-
1.4 SNMP Development Toolkit 4.1.4
Version 4.1.4 supports code replacement in runtime from/to
version 4.1.3, 4.1.2, 4.1.1 and 4.1.
1.4.1 Improvements and new features
-
1.4.2 Reported Fixed Bugs and Malfunctions
-
Fixed a perl related problem in the mibs Makefile.
Geoff White
Own Id: OTP-5491
-
[manager] Failed to register usm users. Both using the
usm config file
(usm.conf)
and the API functions
register_usm_user
Own Id: OTP-5499
Aux Id: Seq 9804
1.4.3 Incompatibilities
-
1.5 SNMP Development Toolkit 4.1.3
Version 4.1.3 supports code replacement in runtime from/to
version 4.1.2, 4.1.1 and 4.1.
1.5.1 Improvements and new features
-
Added utility functions to update agent and manager
config files.
Own Id: OTP-5468
1.5.2 Reported Fixed Bugs and Malfunctions
-
[agent] Error replies was composed with invalid OIDs for the
following error counters:
usmStatsWrongDigests (RFC 2574, chap 3.2, point 6),
usmStatsUnsupportedSecLevels (point 5) and
usmStatsDecryptionErrors (point 8a).
Own Id: OTP-5464
Aux Id: Seq 9791
-
[agent] Malformed Oid returned from a get_next operation as
part of a get-bulk-request causes the agent to crash.
Own Id: OTP-5465
Aux Id: Seq 9783, Seq 9793
-
[agent] Missing catch on decode function call.
Kostis Sagonas
Own Id: OTP-5479
Dialyzer
-
[manager] Invalid check for illegal options.
Kostis Sagonas
Own Id: OTP-5480
Dialyzer
-
Faulty utility function for generation of agent
config file target_addr.conf.
Own Id: OTP-5482
1.5.3 Incompatibilities
-
1.6 SNMP Development Toolkit 4.1.2
Version 4.1.2 supports code replacement in runtime from/to
version 4.1.1 and 4.1.
1.6.1 Improvements and new features
-
Export utility functions to create agent and manager
config files.
Own Id: OTP-5390
-
[agent] Documented instrumentation utility functions
(e.g. current_request_id).
Own Id: OTP-5423
1.6.2 Reported Fixed Bugs and Malfunctions
-
[manager] If the client crashes after having issued
an async request, the server will crash when trying to
perform cleanup. Supervision of the calling process issuing an
async request has been removed.
Own Id: OTP-5370
-
Failure to convert an audit-trail-log to textfile when
using the default log name. This applies to both the manager
and the agent.
Own Id: OTP-5394
-
[manager] Corrected the discovery handling of the manager.
Own Id: OTP-5414
-
[manager] Statistic counter creation correction.
Own Id: OTP-5415
-
[agent] When using the old style agent configuration (pre 4.0),
it was not possible to specify a different error report
module (the agent allways choose snmpa_error_logger).
A similar problem existed for the config option
force_config_load, which allways reverted to false.
Own Id: OTP-5424
-
[manager] The manager net_if process failed to properly handle
the case bind_to option value true.
Own Id: OTP-5431
-
[agent] Various minor mnesia-related fixes.
Martin Björklund
Own Id: OTP-5433
-
[manager] Missing interface functions for loading and
unloading mibs into/from the manager:
load_mib,
unload_mib,
which_mibs,
name_to_oid and
oid_to_name.
Own Id: OTP-5441
-
Added utility functions to retrieve some system and application
info, see versions1 and
versions2.
Own Id: OTP-5445
1.6.3 Incompatibilities
-
1.7 SNMP Development Toolkit v4.1.1
Version 4.1.1 supports code replacement in runtime from/to
version 4.1.
When performing a downgrade, make sure the verbosity of the
manager server process is silence, or else the process will crash
(due to a bug in version 4.0.4) and be restarted by it's
supervisor.
1.7.1 Improvements and new features
-
1.7.2 Reported Fixed Bugs and Malfunctions
-
[manager] Manager synchronous get-function with timeout erroneous.
Results in a function clause.
Own Id: OTP-5364
-
Replace in decoder fun's of the "old style" fun format,
{atom(), atom()}, with a proper fun, e.g. "fun the_function/1".
Own Id: OTP-5365
-
[manager] Register agent using the config file
agents.conf failed due to incorrect function guard.
Own Id: OTP-5367
1.7.3 Incompatibilities
-
1.8 SNMP Development Toolkit v4.1.0
Version 4.1.0 supports code replacement in runtime from/to
version 4.0.4.
When performing a downgrade, make sure the verbosity of the
manager server process is silence, or else the process will crash
(due to a bug in version 4.0.4) and be restarted by it's
supervisor.
1.8.1 Improvements and new features
-
[manager] Added possibility to monitor a registered user.
See snmpm:register_user_monitor.
Own Id: OTP-5286
-
[agent] Improved symbolic store. Alias and Oids where stored
with similar key's (seperated by types: atom() and
lists() respectively). Also added new function:
snmpa:which_aliasnames.
Own Id: OTP-5298
-
[agent] The agent local_db volatile storage method uses
an ets-table which is private. This table has been made
protected in order to make it easier to bedug and test the
snmp agent.
Own Id: OTP-5308
1.8.2 Reported Fixed Bugs and Malfunctions
-
Misspelled deprecated function. Non-existent function
snmp:is_constistent/1 was marked as depricated. Should
have been snmp:is_consistent/1).
Own Id: OTP-5273
-
[agent] Unclear documentation for function
snmpa:send_notification. The Recv argument
(specifically the {M,F,A} variant).
Own Id: OTP-5281
-
[manager] It was never documented how the default
user behaviour
could be overriden (default user is the module
snmpm_user_default
).
See application configuration or
configuration params.
Own Id: OTP-5299
-
[manager] The server process contained a bug that caused it
to crash, if it received an exit message from it's gct (GC timer)
process and it's verbosity was log or higher.
This also effects the application dowgrade.
Own Id: OTP-5306
-
[agent] The agent config file, target_addr.conf, was
incorrectly described in the
Target Address Definitions chapter of the
User's Guide. The EngineId option was left out.
Own Id: OTP-5307
Aux Id: Seq 9689
-
[manager] When a InformRequest is received, the manager sends
a response message. This did not include the varbinds
of the original message.
See RFC 3416, chapter 4.2.7.
Own Id: OTP-5314
-
[manager] Erroneous function guards made it possible to update
some agent info (that should be "static").
Own Id: OTP-5315
1.8.3 Incompatibilities
-
1.9 SNMP Development Toolkit v4.0.4
Version 4.0.4 supports code replacement in runtime from/to
version 4.0.3, 4.0.2, 4.0.1 and 4.0.
1.9.1 Improvements and new features
-
1.9.2 Reported Fixed Bugs and Malfunctions
-
[manager] The timeout calculation for the request
gc timer incorrect.
Own Id: OTP-5267
1.9.3 Incompatibilities
-
1.10 SNMP Development Toolkit v4.0.3
Version 4.0.3 supports code replacement in runtime from/to
version 4.0.2, 4.0.1 and 4.0.
1.10.1 Improvements and new features
-
1.10.2 Reported Fixed Bugs and Malfunctions
-
[manager] Some basic SNMP types where not handled when
performing set-requests
(snmpm:s and
snmpm:as):
'BITS' (b), 'IpAddress' (ip), 'Opaque' (op),
'Counter32' (c32), 'Counter64' (c64) and 'TimeTicks' (tt).
Own Id: OTP-5256
-
[manager] Unnecessary error message when receiving trap from
unregistered agent or agent using other port then the
request port for trap-sending.
Own Id: OTP-5258
1.10.3 Incompatibilities
-
1.11 SNMP Development Toolkit v4.0.2
Version 4.0.2 supports code replacement in runtime from/to
version 4.0.1 and 4.0.
1.11.1 Improvements and new features
-
[manager] When the net_if process failed to send a message, for
whatever reason, this is just dropped. And the user is
"left hanging". Now, if the request is syncroneous,
it will return with a proper reason
(see snmpm:g,
snmpm:gn and
snmpm:s), and if the request
was asynchroneous, the new callback function,
handle_error
(see snmpm_user) is
called.
Own Id: OTP-5242
1.11.2 Reported Fixed Bugs and Malfunctions
-
[manager] The arguments CtxName and Port was swapped in the
function snmpm:g/6.
Own Id: OTP-5225
-
[manager] TRAP receive failes for unknown agent due to
failing message size calculation.
Own Id: OTP-5241
1.11.3 Incompatibilities
-
[manager] Introduced a new callback function in the behaviour
snmpm_user.
Own Id: OTP-5242
1.12 SNMP Development Toolkit v4.0.1
Version 4.0.1 supports code replacement in runtime from/to version 4.0.
1.12.1 Improvements and new features
-
[agent] Added functions to get a list of all mibs loaded into
an agent
(see snmpa:which_mibs)
and to get the (full path) file name of a loaded mib (see
snmpa:whereis_mib).
Own Id: OTP-5187
1.12.2 Reported Fixed Bugs and Malfunctions
-
[manager] The wrong default value (1024) was used for the
net-if option recbuf. If no value is specified, then the OS
default shall be used.
Own Id: OTP-5196
1.12.3 Incompatibilities
-
1.13 SNMP Development Toolkit v4.0
1.13.1 Improvements and new features
-
[manager] Added a proper snmp manager.
Major restructure of the application in order to
incorporate the new manager.
-
[agent] Add a
snmpa:get/3
with an extra Context
argument. Also added similar snmpa:get_next/2,3
functions.
See snmpa:get and
snmpa:get_next.
Martin Björklund
Own Id: OTP-5054
-
[agent] Add notification filters. See
snmpa_notification_filter,
register_notification_filter,
unregister_notification_filter and
which_notification_filter.
Own Id: OTP-5055
-
[agent] Added two mib lookup functions,
me_of and
mib_of.
Own Id: OTP-5082
Aux Id: Seq 8848
-
[compiler] The MIB compiler is now (source code) independent
of the rest of the application (and vice versa).
-
[compiler] DISPLAY-HINT and UNITS included in the
compiled mib.
Own Id: OTP-5053
-
[compiler] Added compiler options
imports
and
module_identity
to include the imports list and
module identity (only SMIv2) info in the compiled mib,
see snmpc.
-
[compiler] Added the MIB compiler option
+no_defs
, see snmpc.
Martin Björklund
-
[compiler] Added the MIB compiler option
+'{module, atom()}'
,
see snmpc.
Martin Björklund
1.13.2 Reported Fixed Bugs and Malfunctions
-
[agent] Failing MIB configure/reconfigure was difficult
to diagnose. Added better error handling and verbosity.
-
[compiler] Added "default value" for INTEGER with enumeration
without a DEFVAL clause.
The lowest valid integer value is choosen for the
variable_info defval.
Own Id: OTP-5124
Aux Id: Seq 8738
-
[compiler] Unnecssarily reserved words in the mib compiler
can cause some enumeration definitions to fail.
Martin Björklund
Own Id: OTP-5066
1.13.3 Incompatibilities
-
New sys configuration format.
Allthough the old configuration format still
works (if only the agent is used), it is no
longer documented and will eventually be
eliminated.
See application configuration or
configuration params for more info.
-
Three new interface modules have been introduced. One
for each of the individual parts of the application:
-
[agent]
snmpa
-
[manager]
snmpm
-
[compiler]
snmpc
The primary interface module, snmp
, still exist.
It contains the application generic functions. The
agent specific stuff still exist (for backward
compatibillity reasons), but has been deprecated and will
eventually be removed.
Some previously already deprecated functions has been
removed (since they in turn was dependent on deprecated
functions, see calendar).
-
[agent] The agent network interface api has changed.
See snmp agent net if,
-
[agent] The default agent audit trail log name has changed.
-
[compiler] Mib format has changed (see OTP-5053 above).
snmp 4.9.3
Copyright © 1991-2007
Ericsson AB