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authorBjörn Gustavsson <[email protected]>2013-06-04 06:21:12 +0200
committerBjörn Gustavsson <[email protected]>2013-06-04 06:21:12 +0200
commitca98e0725a3cb604bda6f3ab579dbcdb387dc180 (patch)
tree539abb22da04f59f0cee5052a070d0a7116dc019 /lib/snmp/src/agent
parent4a6e9afa8762e3f05ae081bafb02b0c5f2ac22bf (diff)
parent9b04c2649ce98c32335c05e90d501c2e66bb2f0e (diff)
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Merge branch 'maint'
* maint: (128 commits) beam_lib: Correct wrong type specification testSeqOf: Test constrained, extensible sizes [snmp/agent] Some restructuring of test suite Clean up testSeqOf Extend tests cases for BIT STRING Improve tests of ENUMERATED asn1ct_check: Eliminate useless Per argument from complist_as_tuple() asn1ct_check: Don't pass on #'ObjectClassFieldType'{} with fixed type asn1ct_gen_per: Remove useless renewal of 'enumval' Fix encoding of semi-constrained, extensible INTEGERs PER/UPER: Fix decoding of semi-constrained INTEGERs testPrim: Simplify test cases using a roundtrip function BER: Fix handling of a constructed default value for a class PER: Generate code for deep table constraints at compile-time Normalize data representation for table constraints asn1ct: Simplify check_value/2 Extend tests to cover more code in asn1ct_check Clean up checking of values for ENUMERATEDs Introduce a new mechanism for structured error handling asn1_db: Make dbput/3 and dbsave/2 asynchronous ...
Diffstat (limited to 'lib/snmp/src/agent')
-rw-r--r--lib/snmp/src/agent/depend.mk20
-rw-r--r--lib/snmp/src/agent/modules.mk16
-rw-r--r--lib/snmp/src/agent/snmp_user_based_sm_mib.erl14
-rw-r--r--lib/snmp/src/agent/snmpa.erl33
-rw-r--r--lib/snmp/src/agent/snmpa_agent.erl185
-rw-r--r--lib/snmp/src/agent/snmpa_agent_sup.erl10
-rw-r--r--lib/snmp/src/agent/snmpa_mib.erl207
-rw-r--r--lib/snmp/src/agent/snmpa_mib_data.erl1374
-rw-r--r--lib/snmp/src/agent/snmpa_mib_data_ttln.erl1402
-rw-r--r--lib/snmp/src/agent/snmpa_mib_data_tttn.erl1443
-rw-r--r--lib/snmp/src/agent/snmpa_mib_storage.erl181
-rw-r--r--lib/snmp/src/agent/snmpa_mib_storage_dets.erl309
-rw-r--r--lib/snmp/src/agent/snmpa_mib_storage_ets.erl341
-rw-r--r--lib/snmp/src/agent/snmpa_mib_storage_mnesia.erl302
-rw-r--r--lib/snmp/src/agent/snmpa_supervisor.erl107
-rw-r--r--lib/snmp/src/agent/snmpa_symbolic_store.erl283
16 files changed, 4578 insertions, 1649 deletions
diff --git a/lib/snmp/src/agent/depend.mk b/lib/snmp/src/agent/depend.mk
index ea9261e266..4b12b66e3b 100644
--- a/lib/snmp/src/agent/depend.mk
+++ b/lib/snmp/src/agent/depend.mk
@@ -77,10 +77,6 @@ $(EBIN)/snmpa_error_logger.$(EMULATOR): \
snmpa_error_report.erl \
snmpa_error_logger.erl
-$(EBIN)/snmpa_general_db.$(EMULATOR): \
- snmpa_general_db.erl \
- ../misc/snmp_verbosity.hrl
-
$(EBIN)/snmpa_local_db.$(EMULATOR): \
snmpa_local_db.erl \
../misc/snmp_debug.hrl \
@@ -88,6 +84,18 @@ $(EBIN)/snmpa_local_db.$(EMULATOR): \
../../include/snmp_types.hrl \
../../include/STANDARD-MIB.hrl
+$(EBIN)/snmpa_mib_storage.$(EMULATOR): \
+ snmpa_mib_storage.erl
+
+$(EBIN)/snmpa_mib_storage_ets.$(EMULATOR): \
+ snmpa_mib_storage_ets.erl
+
+$(EBIN)/snmpa_mib_storage_dets.$(EMULATOR): \
+ snmpa_mib_storage_dets.erl
+
+$(EBIN)/snmpa_mib_storage_mnesia.$(EMULATOR): \
+ snmpa_mib_storage_mnesia.erl
+
$(EBIN)/snmpa_mib.$(EMULATOR): \
snmpa_mib.erl \
../misc/snmp_debug.hrl \
@@ -96,6 +104,10 @@ $(EBIN)/snmpa_mib.$(EMULATOR): \
$(EBIN)/snmpa_mib_data.$(EMULATOR): \
snmpa_mib_data.erl \
+ ../../include/snmp_types.hrl
+
+$(EBIN)/snmpa_mib_data_tttn.$(EMULATOR): \
+ snmpa_mib_data_tttn.erl \
../misc/snmp_debug.hrl \
../misc/snmp_verbosity.hrl \
../../include/snmp_types.hrl
diff --git a/lib/snmp/src/agent/modules.mk b/lib/snmp/src/agent/modules.mk
index 33ab41b434..34765475b9 100644
--- a/lib/snmp/src/agent/modules.mk
+++ b/lib/snmp/src/agent/modules.mk
@@ -2,7 +2,7 @@
# %CopyrightBegin%
#
-# Copyright Ericsson AB 2004-2009. All Rights Reserved.
+# Copyright Ericsson AB 2004-2013. All Rights Reserved.
#
# The contents of this file are subject to the Erlang Public License,
# Version 1.1, (the "License"); you may not use this file except in
@@ -21,15 +21,21 @@ BEHAVIOUR_MODULES = \
snmpa_authentication_service \
snmpa_discovery_handler \
snmpa_error_report \
+ snmpa_mib_storage \
+ snmpa_mib_data \
snmpa_network_interface \
snmpa_network_interface_filter \
snmpa_notification_delivery_info_receiver \
snmpa_notification_filter \
snmpa_set_mechanism
+# snmpa is "plain" interface module but also defines some agent specific types
+# and therefor must be compiled before the modules that use them, including
+# the behaviour modules...
+# snmpa_mib_data_ttln
MODULES = \
- $(BEHAVIOUR_MODULES) \
snmpa \
+ $(BEHAVIOUR_MODULES) \
snmpa_acm \
snmpa_agent \
snmpa_agent_sup \
@@ -39,10 +45,12 @@ MODULES = \
snmpa_error \
snmpa_error_io \
snmpa_error_logger \
- snmpa_general_db \
snmpa_local_db \
+ snmpa_mib_storage_ets \
+ snmpa_mib_storage_dets \
+ snmpa_mib_storage_mnesia \
snmpa_mib \
- snmpa_mib_data \
+ snmpa_mib_data_tttn \
snmpa_mib_lib \
snmpa_misc_sup \
snmpa_mpd \
diff --git a/lib/snmp/src/agent/snmp_user_based_sm_mib.erl b/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
index e675cf1b83..223d3f7218 100644
--- a/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
+++ b/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
@@ -1219,16 +1219,10 @@ split(N, [H | T], FirstRev) when N > 0 ->
split(N-1, T, [H | FirstRev]).
-is_crypto_supported(Algo) ->
- %% The 'catch' handles the case when 'crypto' is
- %% not present in the system (or not started).
- Supported = crypto:supports(),
- Hashs = proplists:get_value(hashs, Supported),
- Ciphers = proplists:get_value(ciphers, Supported),
- case catch lists:member(Algo, Hashs ++ Ciphers) of
- true -> true;
- _ -> false
- end.
+-compile({inline, [{is_crypto_supported,1}]}).
+is_crypto_supported(Func) ->
+ snmp_misc:is_crypto_supported(Func).
+
inconsistentValue(V) -> throw({inconsistentValue, V}).
inconsistentName(N) -> throw({inconsistentName, N}).
diff --git a/lib/snmp/src/agent/snmpa.erl b/lib/snmp/src/agent/snmpa.erl
index b45a47ec6b..14b93439df 100644
--- a/lib/snmp/src/agent/snmpa.erl
+++ b/lib/snmp/src/agent/snmpa.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -111,13 +111,44 @@
-export([print_mib_info/0, print_mib_tables/0, print_mib_variables/0]).
+-export_type([
+ me/0,
+
+ %% Agent config types
+ mib_storage/0,
+ mib_storage_opt/0,
+ mib_storage_module/0,
+ mib_storage_options/0
+ ]).
+
+-deprecated([{old_info_format, 1, next_major_release}]).
+
+
-include("snmpa_atl.hrl").
-include("snmpa_internal.hrl").
+-include_lib("snmp/include/snmp_types.hrl"). % type of me needed.
-define(DISCO_EXTRA_INFO, undefined).
%%-----------------------------------------------------------------
+%% Types
+%%-----------------------------------------------------------------
+
+-type me() :: #me{}.
+
+%% Agent config types
+-type mib_storage() :: [mib_storage_opt()].
+-type mib_storage_opt() :: {module, mib_storage_module()} |
+ {options, mib_storage_options()}.
+
+%% Module implementing the snmpa_mib_storage behaviour
+-type mib_storage_module() :: atom().
+%% Options specific to the above module
+-type mib_storage_options() :: list().
+
+
+%%-----------------------------------------------------------------
%% This utility function is used to convert an old SNMP application
%% config (prior to snmp-4.0) to a SNMP agent config (as of
%% snmp-4.0).
diff --git a/lib/snmp/src/agent/snmpa_agent.erl b/lib/snmp/src/agent/snmpa_agent.erl
index 57846db13b..c267ce5a70 100644
--- a/lib/snmp/src/agent/snmpa_agent.erl
+++ b/lib/snmp/src/agent/snmpa_agent.erl
@@ -159,12 +159,15 @@
%% it is sent to the worker, and the worker is marked as busy.
%% If a request is received when the worker is busy, a new temporary
%% worker is spawned.
+%%
%% Code change
%% ===========
%% Note that the worker(s) execute the same module as the master
%% agent. For code change we have two options - ignore the workers,
%% or send them a code change message.
+%%
%%-----------------------------------------------------------------
+
-record(state, {type,
parent,
worker,
@@ -219,22 +222,19 @@
%%-----------------------------------------------------------------
start_link(Prio, Parent, Ref, Options) ->
?d("start_link -> entry with"
- "~n Prio: ~p"
- "~n Parent: ~p"
- "~n Ref: ~p"
- "~n Options: ~p", [Prio, Parent, Ref, Options]),
- %% gen_server:start_link(?MODULE, [Prio, Parent, Ref, Options], []).
+ "~n Prio: ~p"
+ "~n Parent: ~p"
+ "~n Ref: ~p"
+ "~n Options: ~p", [Prio, Parent, Ref, Options]),
?GS_START_LINK3(Prio, Parent, Ref, Options).
start_link(Prio, Name, Parent, Ref, Options) ->
?d("start_link -> entry with"
- "~n Prio: ~p"
- "~n Name: ~p"
- "~n Parent: ~p"
- "~n Ref: ~p"
- "~n Options: ~p", [Prio, Name, Parent, Ref, Options]),
-% gen_server:start_link({local, Name}, ?MODULE,
-% [Prio, Parent, Ref, Options], []).
+ "~n Prio: ~p"
+ "~n Name: ~p"
+ "~n Parent: ~p"
+ "~n Ref: ~p"
+ "~n Options: ~p", [Prio, Name, Parent, Ref, Options]),
?GS_START_LINK4(Prio, Name, Parent, Ref, Options).
stop(Agent) -> call(Agent, stop).
@@ -335,10 +335,10 @@ increment_counter(Counter, Initial, Max) ->
init([Prio, Parent, Ref, Options]) ->
?d("init -> entry with"
- "~n Prio: ~p"
- "~n Parent: ~p"
- "~n Ref: ~p"
- "~n Options: ~p", [Prio, Parent, Ref, Options]),
+ "~n Prio: ~p"
+ "~n Parent: ~p"
+ "~n Ref: ~p"
+ "~n Options: ~p", [Prio, Parent, Ref, Options]),
case (catch do_init(Prio, Parent, Ref, Options)) of
{ok, State} ->
?vdebug("started",[]),
@@ -1457,80 +1457,80 @@ handle_mibs_cache_request(MibServer, Req) ->
%% Downgrade
%%
-code_change({down, _Vsn}, S1, downgrade_to_pre_4_17_3) ->
- #state{type = Type,
- parent = Parent,
- worker = Worker,
- worker_state = WorkerState,
- set_worker = SetWorker,
- multi_threaded = MT,
- ref = Ref,
- vsns = Vsns,
- nfilters = NF,
- note_store = NoteStore,
- mib_server = MS,
- net_if = NetIf,
- net_if_mod = NetIfMod,
- backup = Backup,
- disco = Disco,
- mibs_cache_request = MCR} = S1,
- S2 = {state,
- type = Type,
- parent = Parent,
- worker = Worker,
- worker_state = WorkerState,
- set_worker = SetWorker,
- multi_threaded = MT,
- ref = Ref,
- vsns = Vsns,
- nfilters = NF,
- note_store = NoteStore,
- mib_server = MS,
- net_if = NetIf,
- net_if_mod = NetIfMod,
- backup = Backup,
- disco = Disco,
- mibs_cache_request = MCR},
- {ok, S2};
-
-%% Upgrade
-%%
-code_change(_Vsn, S1, upgrade_from_pre_4_17_3) ->
- {state,
- type = Type,
- parent = Parent,
- worker = Worker,
- worker_state = WorkerState,
- set_worker = SetWorker,
- multi_threaded = MT,
- ref = Ref,
- vsns = Vsns,
- nfilters = NF,
- note_store = NoteStore,
- mib_server = MS,
- net_if = NetIf,
- net_if_mod = NetIfMod,
- backup = Backup,
- disco = Disco,
- mibs_cache_request = MCR} = S1,
- S2 = #state{type = Type,
- parent = Parent,
- worker = Worker,
- worker_state = WorkerState,
- set_worker = SetWorker,
- multi_threaded = MT,
- ref = Ref,
- vsns = Vsns,
- nfilters = NF,
- note_store = NoteStore,
- mib_server = MS,
- net_if = NetIf,
- net_if_mod = NetIfMod,
- backup = Backup,
- disco = Disco,
- mibs_cache_request = MCR,
- gb_max_vbs = ?DEFAULT_GB_MAX_VBS},
- {ok, S2};
+%% code_change({down, _Vsn}, S1, downgrade_to_pre_4_17_3) ->
+%% #state{type = Type,
+%% parent = Parent,
+%% worker = Worker,
+%% worker_state = WorkerState,
+%% set_worker = SetWorker,
+%% multi_threaded = MT,
+%% ref = Ref,
+%% vsns = Vsns,
+%% nfilters = NF,
+%% note_store = NoteStore,
+%% mib_server = MS,
+%% net_if = NetIf,
+%% net_if_mod = NetIfMod,
+%% backup = Backup,
+%% disco = Disco,
+%% mibs_cache_request = MCR} = S1,
+%% S2 = {state,
+%% type = Type,
+%% parent = Parent,
+%% worker = Worker,
+%% worker_state = WorkerState,
+%% set_worker = SetWorker,
+%% multi_threaded = MT,
+%% ref = Ref,
+%% vsns = Vsns,
+%% nfilters = NF,
+%% note_store = NoteStore,
+%% mib_server = MS,
+%% net_if = NetIf,
+%% net_if_mod = NetIfMod,
+%% backup = Backup,
+%% disco = Disco,
+%% mibs_cache_request = MCR},
+%% {ok, S2};
+
+%% %% Upgrade
+%% %%
+%% code_change(_Vsn, S1, upgrade_from_pre_4_17_3) ->
+%% {state,
+%% type = Type,
+%% parent = Parent,
+%% worker = Worker,
+%% worker_state = WorkerState,
+%% set_worker = SetWorker,
+%% multi_threaded = MT,
+%% ref = Ref,
+%% vsns = Vsns,
+%% nfilters = NF,
+%% note_store = NoteStore,
+%% mib_server = MS,
+%% net_if = NetIf,
+%% net_if_mod = NetIfMod,
+%% backup = Backup,
+%% disco = Disco,
+%% mibs_cache_request = MCR} = S1,
+%% S2 = #state{type = Type,
+%% parent = Parent,
+%% worker = Worker,
+%% worker_state = WorkerState,
+%% set_worker = SetWorker,
+%% multi_threaded = MT,
+%% ref = Ref,
+%% vsns = Vsns,
+%% nfilters = NF,
+%% note_store = NoteStore,
+%% mib_server = MS,
+%% net_if = NetIf,
+%% net_if_mod = NetIfMod,
+%% backup = Backup,
+%% disco = Disco,
+%% mibs_cache_request = MCR,
+%% gb_max_vbs = ?DEFAULT_GB_MAX_VBS},
+%% {ok, S2};
code_change(_Vsn, S, _Extra) ->
{ok, S}.
@@ -4411,7 +4411,7 @@ get_mibs(Opts) ->
get_option(mibs, Opts, []).
get_mib_storage(Opts) ->
- get_option(mib_storage, Opts, ets).
+ get_option(mib_storage, Opts).
get_set_mechanism(Opts) ->
get_option(set_mechanism, Opts, snmpa_set).
@@ -4450,6 +4450,9 @@ net_if_verbosity(_Pid,_Verbosity) ->
ok.
+get_option(Key, Opts) ->
+ snmp_misc:get_option(Key, Opts).
+
get_option(Key, Opts, Default) ->
snmp_misc:get_option(Key, Opts, Default).
diff --git a/lib/snmp/src/agent/snmpa_agent_sup.erl b/lib/snmp/src/agent/snmpa_agent_sup.erl
index 9b8c4d12a6..2805e2dc0d 100644
--- a/lib/snmp/src/agent/snmpa_agent_sup.erl
+++ b/lib/snmp/src/agent/snmpa_agent_sup.erl
@@ -29,10 +29,12 @@
-export([init/1]).
-define(SERVER, ?MODULE).
+%% Always use plain ets for sub-agents
-ifdef(snmp_debug).
--define(DEFAULT_OPTS, [{verbosity, trace}]).
+-define(DEFAULT_SA_OPTS, [{mib_storage, [{module, snmpa_mib_storage_ets}]},
+ {verbosity, trace}]).
-else.
--define(DEFAULT_OPTS, []).
+-define(DEFAULT_SA_OPTS, [{mib_storage, [{module, snmpa_mib_storage_ets}]}]).
-endif.
@@ -63,8 +65,8 @@ start_subagent(ParentAgent, Subtree, Mibs) ->
Ref = make_ref(),
?d("start_subagent -> Ref: ~p", [Ref]),
Options = [{priority, Prio},
- {mibs, Mibs},
- {misc_sup, snmpa_misc_sup} | ?DEFAULT_OPTS],
+ {mibs, Mibs},
+ {misc_sup, snmpa_misc_sup} | ?DEFAULT_SA_OPTS],
Agent = {{sub_agent, Max},
{snmpa_agent, start_link,
[Prio, ParentAgent, Ref, Options]},
diff --git a/lib/snmp/src/agent/snmpa_mib.erl b/lib/snmp/src/agent/snmpa_mib.erl
index 575a018c0c..031309b990 100644
--- a/lib/snmp/src/agent/snmpa_mib.erl
+++ b/lib/snmp/src/agent/snmpa_mib.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -18,7 +18,6 @@
%%
-module(snmpa_mib).
-%% c(snmpa_mib).
%%%-----------------------------------------------------------------
%%% This module implements a MIB server.
@@ -75,12 +74,14 @@
%% Internal Data structures
%%
%% State
-%% data - is the MIB data (defined in snmpa_mib_data)
+%% data - is the MIB data (defined in mib_data module)
%% meo - mib entry override
%% teo - trap (notification) entry override
%%-----------------------------------------------------------------
--record(state, {data, meo, teo, backup,
- cache, cache_tmr, cache_autogc, cache_gclimit, cache_age}).
+-record(state,
+ {data, meo, teo, backup,
+ cache, cache_tmr, cache_autogc, cache_gclimit, cache_age,
+ data_mod}).
@@ -224,9 +225,9 @@ info(MibServer, Type) ->
call(MibServer, {info, Type}).
dump(MibServer) ->
- call(MibServer, dump).
+ dump(MibServer, io).
-dump(MibServer, File) when is_list(File) ->
+dump(MibServer, File) when (File =:= io) orelse is_list(File) ->
call(MibServer, {dump, File}).
backup(MibServer, BackupDir) when is_list(BackupDir) ->
@@ -256,7 +257,7 @@ init([Prio, Mibs, Opts]) ->
do_init(Prio, Mibs, Opts) ->
process_flag(priority, Prio),
process_flag(trap_exit, true),
- put(sname,ms),
+ put(sname, ms),
put(verbosity, ?vvalidate(get_verbosity(Opts))),
?vlog("starting",[]),
@@ -289,13 +290,19 @@ do_init(Prio, Mibs, Opts) ->
MeOverride = get_me_override(Opts),
TeOverride = get_te_override(Opts),
MibStorage = get_mib_storage(Opts),
- Data = snmpa_mib_data:new(MibStorage),
- ?vtrace("init -> mib data created",[]),
- case (catch mib_operations(load_mib, Mibs, Data,
+ MibDataMod = get_data_mod(Opts),
+ ?vtrace("init -> try create mib data with"
+ "~n MeOverride: ~p"
+ "~n TeOverride: ~p"
+ "~n MibStorage: ~p", [MeOverride, TeOverride, MibStorage]),
+ Data = MibDataMod:new(MibStorage),
+ ?vdebug("init -> mib data created", []),
+ case (catch mib_operations(MibDataMod,
+ load_mib, Mibs, Data,
MeOverride, TeOverride, true)) of
{ok, Data2} ->
?vdebug("started",[]),
- snmpa_mib_data:sync(Data2),
+ MibDataMod:sync(Data2),
?vdebug("mib data synced",[]),
{ok, #state{data = Data2,
teo = TeOverride,
@@ -304,7 +311,8 @@ do_init(Prio, Mibs, Opts) ->
cache_tmr = CacheGcTimer,
cache_autogc = CacheAutoGC,
cache_gclimit = CacheGcLimit,
- cache_age = CacheAge}};
+ cache_age = CacheAge,
+ data_mod = MibDataMod}};
{'aborted at', Mib, _NewData, Reason} ->
?vinfo("failed loading mib ~p: ~p",[Mib,Reason]),
{error, {Mib, Reason}}
@@ -315,32 +323,34 @@ do_init(Prio, Mibs, Opts) ->
%% Returns: {ok, NewMibData} | {'aborted at', Mib, NewData, Reason}
%% Args: Operation is load_mib | unload_mib.
%%----------------------------------------------------------------------
-mib_operations(Operation, Mibs, Data, MeOverride, TeOverride) ->
- mib_operations(Operation, Mibs, Data, MeOverride, TeOverride, false).
+mib_operations(Mod, Operation, Mibs, Data, MeOverride, TeOverride) ->
+ mib_operations(Mod, Operation, Mibs, Data, MeOverride, TeOverride, false).
-mib_operations(_Operation, [], Data, _MeOverride, _TeOverride, _Force) ->
+mib_operations(_Mod, _Operation, [], Data, _MeOverride, _TeOverride, _Force) ->
{ok, Data};
-mib_operations(Operation, [Mib|Mibs], Data0, MeOverride, TeOverride, Force) ->
+mib_operations(Mod, Operation, [Mib|Mibs], Data0, MeOverride, TeOverride, Force) ->
?vtrace("mib operations ~p on"
- "~n Mibs: ~p"
- "~n with "
- "~n MeOverride: ~p"
- "~n TeOverride: ~p"
- "~n Force: ~p", [Operation,Mibs,MeOverride,TeOverride,Force]),
- Data = mib_operation(Operation, Mib, Data0, MeOverride, TeOverride, Force),
- mib_operations(Operation, Mibs, Data, MeOverride, TeOverride, Force).
-
-mib_operation(Operation, Mib, Data0, MeOverride, TeOverride, Force)
+ "~n Mibs: ~p"
+ "~n with "
+ "~n MeOverride: ~p"
+ "~n TeOverride: ~p"
+ "~n Force: ~p",
+ [Operation, Mibs, MeOverride, TeOverride, Force]),
+ Data = mib_operation(Mod,
+ Operation, Mib, Data0, MeOverride, TeOverride, Force),
+ mib_operations(Mod, Operation, Mibs, Data, MeOverride, TeOverride, Force).
+
+mib_operation(Mod, Operation, Mib, Data0, MeOverride, TeOverride, Force)
when is_list(Mib) ->
?vtrace("mib operation on mib ~p", [Mib]),
- case apply(snmpa_mib_data, Operation, [Data0,Mib,MeOverride,TeOverride]) of
- {error, 'already loaded'} when (Operation =:= load_mib) andalso
+ case apply(Mod, Operation, [Data0, Mib, MeOverride, TeOverride]) of
+ {error, already_loaded} when (Operation =:= load_mib) andalso
(Force =:= true) ->
?vlog("ignore mib ~p -> already loaded", [Mib]),
Data0;
- {error, 'not loaded'} when (Operation =:= unload_mib) andalso
- (Force =:= true) ->
+ {error, not_loaded} when (Operation =:= unload_mib) andalso
+ (Force =:= true) ->
?vlog("ignore mib ~p -> not loaded", [Mib]),
Data0;
{error, Reason} ->
@@ -350,7 +360,7 @@ mib_operation(Operation, Mib, Data0, MeOverride, TeOverride, Force)
{ok, Data} ->
Data
end;
-mib_operation(_Op, Mib, Data, _MeOverride, _TeOverride, _Force) ->
+mib_operation(_Mod, _Op, Mib, Data, _MeOverride, _TeOverride, _Force) ->
throw({'aborted at', Mib, Data, bad_mibname}).
@@ -395,15 +405,15 @@ handle_call({update_cache_opts, Key, Value}, _From, State) ->
{reply, Result, NewState};
handle_call({lookup, Oid}, _From,
- #state{data = Data, cache = Cache} = State) ->
+ #state{data = Data, cache = Cache, data_mod = Mod} = State) ->
?vlog("lookup ~p", [Oid]),
Key = {lookup, Oid},
{Reply, NewState} =
case maybe_cache_lookup(Cache, Key) of
?NO_CACHE ->
- {snmpa_mib_data:lookup(Data, Oid), State};
+ {Mod:lookup(Data, Oid), State};
[] ->
- Rep = snmpa_mib_data:lookup(Data, Oid),
+ Rep = Mod:lookup(Data, Oid),
ets:insert(Cache, {Key, Rep, timestamp()}),
{Rep, maybe_start_cache_gc_timer(State)};
[{Key, Rep, _}] ->
@@ -414,22 +424,23 @@ handle_call({lookup, Oid}, _From,
?vdebug("lookup -> Reply: ~p", [Reply]),
{reply, Reply, NewState};
-handle_call({which_mib, Oid}, _From, #state{data = Data} = State) ->
+handle_call({which_mib, Oid}, _From,
+ #state{data = Data, data_mod = Mod} = State) ->
?vlog("which_mib ~p",[Oid]),
- Reply = snmpa_mib_data:which_mib(Data, Oid),
+ Reply = Mod:which_mib(Data, Oid),
?vdebug("which_mib: ~p",[Reply]),
{reply, Reply, State};
handle_call({next, Oid, MibView}, _From,
- #state{data = Data, cache = Cache} = State) ->
+ #state{data = Data, cache = Cache, data_mod = Mod} = State) ->
?vlog("next ~p [~p]", [Oid, MibView]),
Key = {next, Oid, MibView},
{Reply, NewState} =
case maybe_cache_lookup(Cache, Key) of
?NO_CACHE ->
- {snmpa_mib_data:next(Data, Oid, MibView), State};
+ {Mod:next(Data, Oid, MibView), State};
[] ->
- Rep = snmpa_mib_data:next(Data, Oid, MibView),
+ Rep = Mod:next(Data, Oid, MibView),
ets:insert(Cache, {Key, Rep, timestamp()}),
{Rep, maybe_start_cache_gc_timer(State)};
[{Key, Rep, _}] ->
@@ -441,89 +452,99 @@ handle_call({next, Oid, MibView}, _From,
{reply, Reply, NewState};
handle_call({load_mibs, Mibs}, _From,
- #state{data = Data,
- teo = TeOverride,
- meo = MeOverride,
- cache = Cache} = State) ->
+ #state{data = Data,
+ teo = TeOverride,
+ meo = MeOverride,
+ cache = Cache,
+ data_mod = Mod} = State) ->
?vlog("load mibs ~p",[Mibs]),
%% Invalidate cache
NewCache = maybe_invalidate_cache(Cache),
- {NData,Reply} =
- case (catch mib_operations(load_mib, Mibs, Data,
+ {NData, Reply} =
+ case (catch mib_operations(Mod, load_mib, Mibs, Data,
MeOverride, TeOverride)) of
{'aborted at', Mib, NewData, Reason} ->
?vlog("aborted at ~p for reason ~p",[Mib,Reason]),
- {NewData,{error, {'load aborted at', Mib, Reason}}};
+ {NewData, {error, {'load aborted at', Mib, Reason}}};
{ok, NewData} ->
- {NewData,ok}
+ {NewData, ok}
end,
- snmpa_mib_data:sync(NData),
+ Mod:sync(NData),
{reply, Reply, State#state{data = NData, cache = NewCache}};
handle_call({unload_mibs, Mibs}, _From,
- #state{data = Data,
- teo = TeOverride,
- meo = MeOverride,
- cache = Cache} = State) ->
+ #state{data = Data,
+ teo = TeOverride,
+ meo = MeOverride,
+ cache = Cache,
+ data_mod = Mod} = State) ->
?vlog("unload mibs ~p",[Mibs]),
%% Invalidate cache
NewCache = maybe_invalidate_cache(Cache),
%% Unload mib(s)
- {NData,Reply} =
- case (catch mib_operations(unload_mib, Mibs, Data,
+ {NData, Reply} =
+ case (catch mib_operations(Mod, unload_mib, Mibs, Data,
MeOverride, TeOverride)) of
{'aborted at', Mib, NewData, Reason} ->
- ?vlog("aborted at ~p for reason ~p",[Mib,Reason]),
+ ?vlog("aborted at ~p for reason ~p", [Mib,Reason]),
{NewData, {error, {'unload aborted at', Mib, Reason}}};
{ok, NewData} ->
- {NewData,ok}
+ {NewData, ok}
end,
- snmpa_mib_data:sync(NData),
+ Mod:sync(NData),
{reply, Reply, State#state{data = NData, cache = NewCache}};
-handle_call(which_mibs, _From, #state{data = Data} = State) ->
+handle_call(which_mibs, _From, #state{data = Data, data_mod = Mod} = State) ->
?vlog("which mibs",[]),
- Reply = snmpa_mib_data:which_mibs(Data),
+ Reply = Mod:which_mibs(Data),
{reply, Reply, State};
-handle_call({whereis_mib, Mib}, _From, #state{data = Data} = State) ->
+handle_call({whereis_mib, Mib}, _From,
+ #state{data = Data,
+ data_mod = Mod} = State) ->
?vlog("whereis mib: ~p",[Mib]),
- Reply = snmpa_mib_data:whereis_mib(Data, Mib),
+ Reply = Mod:whereis_mib(Data, Mib),
{reply, Reply, State};
handle_call({register_subagent, Oid, Pid}, _From,
- #state{data = Data, cache = Cache} = State) ->
+ #state{data = Data,
+ cache = Cache,
+ data_mod = Mod} = State) ->
?vlog("register subagent ~p, ~p",[Oid,Pid]),
%% Invalidate cache
NewCache = maybe_invalidate_cache(Cache),
- case snmpa_mib_data:register_subagent(Data, Oid, Pid) of
+ case Mod:register_subagent(Data, Oid, Pid) of
{error, Reason} ->
?vlog("registration failed: ~p",[Reason]),
{reply, {error, Reason}, State#state{cache = NewCache}};
- NewData ->
+ {ok, NewData} ->
{reply, ok, State#state{data = NewData, cache = NewCache}}
end;
handle_call({unregister_subagent, OidOrPid}, _From,
- #state{data = Data, cache = Cache} = State) ->
+ #state{data = Data,
+ cache = Cache,
+ data_mod = Mod} = State) ->
?vlog("unregister subagent ~p",[OidOrPid]),
%% Invalidate cache
NewCache = maybe_invalidate_cache(Cache),
- case snmpa_mib_data:unregister_subagent(Data, OidOrPid) of
+ case Mod:unregister_subagent(Data, OidOrPid) of
+ {ok, NewData} ->
+ {reply, ok, State#state{data = NewData, cache = NewCache}};
{ok, NewData, DeletedSubagentPid} ->
{reply, {ok, DeletedSubagentPid}, State#state{data = NewData,
cache = NewCache}};
{error, Reason} ->
?vlog("unregistration failed: ~p",[Reason]),
- {reply, {error, Reason}, State#state{cache = NewCache}};
- NewData ->
- {reply, ok, State#state{data = NewData, cache = NewCache}}
+ {reply, {error, Reason}, State#state{cache = NewCache}}
end;
-handle_call(info, _From, #state{data = Data, cache = Cache} = State) ->
+handle_call(info, _From, #state{data = Data,
+ cache = Cache,
+ data_mod = Mod} = State) ->
?vlog("info",[]),
Reply =
- case (catch snmpa_mib_data:info(Data)) of
+ case (catch Mod:info(Data)) of
Info when is_list(Info) ->
[{cache, size_cache(Cache)} | Info];
E ->
@@ -531,10 +552,12 @@ handle_call(info, _From, #state{data = Data, cache = Cache} = State) ->
end,
{reply, Reply, State};
-handle_call({info, Type}, _From, #state{data = Data} = State) ->
+handle_call({info, Type}, _From,
+ #state{data = Data,
+ data_mod = Mod} = State) ->
?vlog("info ~p",[Type]),
Reply =
- case (catch snmpa_mib_data:info(Data, Type)) of
+ case (catch Mod:info(Data, Type)) of
Info when is_list(Info) ->
Info;
E ->
@@ -542,21 +565,19 @@ handle_call({info, Type}, _From, #state{data = Data} = State) ->
end,
{reply, Reply, State};
-handle_call(dump, _From, State) ->
- ?vlog("dump",[]),
- Reply = snmpa_mib_data:dump(State#state.data),
- {reply, Reply, State};
-
-handle_call({dump, File}, _From, #state{data = Data} = State) ->
+handle_call({dump, File}, _From,
+ #state{data = Data, data_mod = Mod} = State) ->
?vlog("dump on ~s",[File]),
- Reply = snmpa_mib_data:dump(Data, File),
+ Reply = Mod:dump(Data, File),
{reply, Reply, State};
%% This check (that there is no backup already in progress) is also
%% done in the master agent process, but just in case a user issues
%% a backup call to this process directly, we add a similar check here.
handle_call({backup, BackupDir}, From,
- #state{backup = undefined, data = Data} = State) ->
+ #state{backup = undefined,
+ data = Data,
+ data_mod = Mod} = State) ->
?vlog("backup to ~s", [BackupDir]),
Pid = self(),
V = get(verbosity),
@@ -568,7 +589,7 @@ handle_call({backup, BackupDir}, From,
put(sname, ambs),
put(verbosity, V),
Dir = filename:join([BackupDir]),
- Reply = snmpa_mib_data:backup(Data, Dir),
+ Reply = Mod:backup(Data, Dir),
Pid ! {backup_done, Reply},
unlink(Pid)
end),
@@ -637,8 +658,8 @@ handle_info(Info, State) ->
warning_msg("received unknown info: ~n~p", [Info]),
{noreply, State}.
-terminate(_Reason, #state{data = Data}) ->
- catch snmpa_mib_data:close(Data),
+terminate(_Reason, #state{data = Data, data_mod = Mod}) ->
+ catch Mod:close(Data),
ok.
@@ -655,6 +676,11 @@ terminate(_Reason, #state{data = Data}) ->
%% S2 = {state, Data, MEO, TEO, B},
%% {ok, S2};
+code_change({down, Vsn}, #state{data = Data0, data_mod = Mod} = State, Extra) ->
+ Data = Mod:code_change(down, Vsn, Extra, Data0),
+ {ok, State#state{data = Data}};
+
+
%% %% upgrade
%% %%
%% code_change(_Vsn, S1, upgrade_from_pre_4_12) ->
@@ -663,8 +689,9 @@ terminate(_Reason, #state{data = Data}) ->
%% S2 = #state{data = Data, meo = MEO, teo = TEO, backup = B, cache = Cache},
%% {ok, S2};
-code_change(_Vsn, State, _Extra) ->
- {ok, State}.
+code_change(Vsn, #state{data = Data0, data_mod = Mod} = State, Extra) ->
+ Data = Mod:code_change(up, Vsn, Extra, Data0),
+ {ok, State#state{data = Data}}.
%%-----------------------------------------------------------------
@@ -681,7 +708,10 @@ get_te_override(Options) ->
get_opt(trapentry_override, Options, false).
get_mib_storage(Options) ->
- get_opt(mib_storage, Options, ets).
+ get_opt(mib_storage, Options).
+
+get_data_mod(Options) ->
+ get_opt(data_module, Options, snmpa_mib_data_tttn).
get_cacheopt_autogc(Cache, CacheOpts) ->
IsValid = fun(AutoGC) when ((AutoGC =:= true) orelse
@@ -868,6 +898,9 @@ timestamp() ->
%% ----------------------------------------------------------------
+get_opt(Key, Options) ->
+ snmp_misc:get_option(Key, Options).
+
get_opt(Key, Options, Default) ->
snmp_misc:get_option(Key, Options, Default).
diff --git a/lib/snmp/src/agent/snmpa_mib_data.erl b/lib/snmp/src/agent/snmpa_mib_data.erl
index b80d85d2ee..4d8a12b6c6 100644
--- a/lib/snmp/src/agent/snmpa_mib_data.erl
+++ b/lib/snmp/src/agent/snmpa_mib_data.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -18,1338 +18,92 @@
%%
-module(snmpa_mib_data).
-%%%-----------------------------------------------------------------
-%%% This module implements the MIB internal data structures.
-%%% An MIB Data Structure consists of three items; an ets-table,
-%%% a tree and a list of registered subagents.
-%%% The subagent information is consequently duplicated. It resides
-%%% both in the tree and in the list.
-%%% The ets-table contains all data associated with each variable,
-%%% table, tableentry and tablecolumn in the MIB.
-%%% The tree contains information of the Oids in the MIB.
-%%%
-%%% When a mib is loaded, the tree is built from the plain list
-%%% in the binary file.
-%%%-----------------------------------------------------------------
--include("snmp_types.hrl").
--include("snmp_debug.hrl").
-
--define(VMODULE,"MDATA").
--include("snmp_verbosity.hrl").
-
--define(MIB_DATA,snmpa_mib_data).
--define(MIB_NODE,snmpa_mib_node).
--define(MIB_TREE,snmpa_mib_tree).
--define(DUMMY_TREE_GENERATION,1).
--define(DEFAULT_TREE,{tree,{undefined_node},internal}).
-%%-define(DUMMY_TREE_DB,dummy_tree_db).
-%%-define(DUMMY_TREE_DB_INIT,{?DUMMY_TREE_DB,?DEFAULT_TREE}).
-
+-include_lib("snmp/include/snmp_types.hrl").
%%%-----------------------------------------------------------------
-%%% Table of contents
-%%% =================
-%%% 1. Interface
-%%% 2. Implementation of tree access
-%%% 3. Tree building functions
-%%% 4. Tree merging
-%%% 5. Tree deletion routines
-%%% 6. Functions for subagent handling
-%%% 7. Misc functions
+%%% This is the behaviour for the MIB server backend internal
+%%% data storage.
%%%-----------------------------------------------------------------
+%% These types should really be defined elsewhere...
+-export_type([
+ mib_view/0,
+ mib_view_elem/0,
+ mib_view_mask/0,
+ mib_view_inclusion/0
+ ]).
-%%----------------------------------------------------------------------
-%% data_db is an database containing loaded mibs as:
-%% {MibName = atom(), Symbolic = ?, FullFileName = string()}
-%% it is either ets or mnesia
-%% tree_db is a database containing _one_ record with the tree!
-%% (the reason for this is part to get replication and part out of convenience)
-%% ref_tree is the root node, without any subagent.
-%% tree is the root node (same as ref_tree but with the subagents added).
-%% subagents is a list of {SAPid, Oid}
-%%----------------------------------------------------------------------
--record(mib_data, {mib_db, % table of #mib_info
- node_db, % table of #node_info
- tree_db, % table of #tree
- tree, % The actual tree
- subagents = []}).
-
--record(mib_info, {name, symbolic, file_name}).
--record(node_info, {oid, mib_name, me}).
-
-
-%% API
--export([new/0, new/1, sync/1, close/1,
- load_mib/4, unload_mib/4, which_mibs/1, whereis_mib/2,
- info/1, info/2,
- dump/1, dump/2,
- backup/2,
- lookup/2, next/3, which_mib/2,
- register_subagent/3, unregister_subagent/2]).
-
-%% Internal exports
--export([code_change/2]).
-
-
-%%-----------------------------------------------------------------
-%% A tree is represented as a N-tuple, where each element is a
-%% node. A node is:
-%% 1) {tree, Tree, Info} where Info can be {table, Id}, {table_entry, Id}
-%% or perhaps 'internal'
-%% 2) undefined_node (memory optimization (instead of {node, undefined}))
-%% 3) {node, Info} where Info can be {subagent, Pid}, {variable, Id},
-%% {table_column, Id}
-%% Id is {MibName, MibEntry}
-%% The over all root is represented as {tree, Tree, internal}.
-%%
-%% tree() = {tree, nodes(), tree_info()}
-%% nodes() = {tree() | node() | undefined_node, ...}
-%% node() = {node, node_info()}
-%% tree_info() = {table, Id} | {table_entry, Id} | internal
-%% node_info() = {subagent, Pid} | {variable, Id} | {table_colum, Id}
-%%-----------------------------------------------------------------
-
-%% This record is what is stored in the database. The 'tree' part
-%% is described above...
--record(tree,{generation = ?DUMMY_TREE_GENERATION, root = ?DEFAULT_TREE}).
-
-
-%%%======================================================================
-%%% 1. Interface
-%%%======================================================================
-
-%%-----------------------------------------------------------------
-%% Func: new/0, new/1
-%% Returns: A representation of mib data.
-%%-----------------------------------------------------------------
-new() ->
- new(ets).
-
-%% Where -> A list of nodes where the tables will be created
-new(Storage) ->
- %% First we must check if there is already something to read
- %% If a database already exists, then the tree structure has to be read
- ?vtrace("open (mib) database",[]),
- MibDb = snmpa_general_db:open(Storage, ?MIB_DATA,
- mib_info,
- record_info(fields,mib_info), set),
- ?vtrace("open (mib) node database",[]),
- NodeDb = snmpa_general_db:open(Storage, ?MIB_NODE,
- node_info,
- record_info(fields,node_info), set),
- ?vtrace("open (mib) tree database",[]),
- TreeDb = snmpa_general_db:open(Storage, ?MIB_TREE,
- tree,
- record_info(fields,tree), set),
- Tree =
- case snmpa_general_db:read(TreeDb, ?DUMMY_TREE_GENERATION) of
- false ->
- T = #tree{},
- snmpa_general_db:write(TreeDb, T),
- T;
- {value, T} ->
- T
- end,
- install_mibs(MibDb, NodeDb),
- #mib_data{mib_db = MibDb,
- node_db = NodeDb,
- tree_db = TreeDb,
- tree = Tree}.
-
-
-%%----------------------------------------------------------------------
-%% Returns: new mib data | {error, Reason}
-%%----------------------------------------------------------------------
-load_mib(MibData,FileName,MeOverride,TeOverride)
- when is_record(MibData,mib_data) andalso is_list(FileName) ->
- ?vlog("load mib file: ~p",[FileName]),
- ActualFileName = filename:rootname(FileName, ".bin") ++ ".bin",
- MibName = list_to_atom(filename:basename(FileName, ".bin")),
- (catch do_load_mib(MibData, ActualFileName, MibName,
- MeOverride, TeOverride)).
-
-do_load_mib(MibData, ActualFileName, MibName, MeOverride, TeOverride) ->
- ?vtrace("do_load_mib -> entry with"
- "~n ActualFileName: ~s"
- "~n MibName: ~p",[ActualFileName, MibName]),
- #mib_data{mib_db = MibDb,
- node_db = NodeDb,
- %% tree_db = TreeDb,
- tree = Tree} = MibData,
- verify_not_loaded(MibDb, MibName),
- ?vtrace("do_load_mib -> already loaded mibs:"
- "~n ~p",[loaded(MibDb)]),
- Mib = do_read_mib(ActualFileName),
- ?vtrace("do_load_mib -> read mib ~s",[Mib#mib.name]),
- NonInternalMes =
- lists:filter(fun(ME) -> maybe_drop_me(ME) end, Mib#mib.mes),
- OldRoot = Tree#tree.root,
- T = build_tree(NonInternalMes, MibName),
- ?d("load_mib -> "
- "~n OldRoot: ~p"
- "~n T: ~p", [OldRoot, T]),
- case (catch merge_nodes(T, OldRoot)) of
- {error_merge_nodes, Node1, Node2} ->
- ?vlog("error merging nodes:"
- "~n~p~nand~n~p", [Node1,Node2]),
- {error, oid_conflict};
- NewRoot when is_tuple(NewRoot) andalso (element(1,NewRoot) =:= tree) ->
- ?d("load_mib -> "
- "~n NewRoot: ~p", [NewRoot]),
- Symbolic = not lists:member(no_symbolic_info, Mib#mib.misc),
- case (catch check_notif_and_mes(TeOverride, MeOverride, Symbolic,
- Mib#mib.traps, NonInternalMes)) of
- true ->
- install_mes(NodeDb, MibName, NonInternalMes),
- install_mib(MibDb, Symbolic, Mib,
- MibName, ActualFileName, NonInternalMes),
- ?vtrace("installed mib ~s", [Mib#mib.name]),
- Tree2 = Tree#tree{root = NewRoot},
- %% snmpa_general_db:write(TreeDb, Tree2), %% Store later?
- {ok, MibData#mib_data{tree = Tree2}};
- Else ->
- Else
- end
- end.
-
-
-verify_not_loaded(Db, Name) ->
- case snmpa_general_db:read(Db, Name) of
- {value, #mib_info{name = Name}} ->
- throw({error, 'already loaded'});
- false ->
- ok
- end.
-
-do_read_mib(ActualFileName) ->
- case snmp_misc:read_mib(ActualFileName) of
- {error, Reason} ->
- ?vlog("Failed reading mib file ~p with reason: ~p",
- [ActualFileName,Reason]),
- throw({error, Reason});
- {ok, Mib} ->
- Mib
- end.
-
-%% The Tree DB is handled in a special way since it can be very large.
-sync(#mib_data{mib_db = M,
- node_db = N,
- tree_db = T, tree = Tree, subagents = []}) ->
- snmpa_general_db:sync(M),
- snmpa_general_db:sync(N),
- snmpa_general_db:write(T, Tree),
- snmpa_general_db:sync(T);
-sync(#mib_data{mib_db = M,
- node_db = N,
- tree_db = T, tree = Tree, subagents = SAs}) ->
-
- snmpa_general_db:sync(M),
- snmpa_general_db:sync(N),
-
- %% Ouch. Since the subagent info is dynamic we do not
- %% want to store the tree containing subagent info. So, we
- %% have to create a tmp tree without those and store it.
-
- case delete_subagents(Tree, SAs) of
- {ok, TreeWithoutSAs} ->
- snmpa_general_db:write(T, TreeWithoutSAs),
- snmpa_general_db:sync(T);
- Error ->
- Error
- end.
-
-delete_subagents(Tree, []) ->
- {ok, Tree};
-delete_subagents(Tree0, [{_, Oid}|SAs]) ->
- case (catch delete_subagent(Tree0, Oid)) of
- {tree, _Tree, _Info} = Tree1 ->
- delete_subagents(Tree1, SAs);
- _Error ->
- {error, {'invalid oid', Oid}}
- end.
-
-%%----------------------------------------------------------------------
-%% (OTP-3601)
-%%----------------------------------------------------------------------
-check_notif_and_mes(TeOverride,MeOverride,Symbolic,Traps,MEs) ->
- ?vtrace("check notifications and mib entries",[]),
- check_notifications(TeOverride,Symbolic,Traps),
- check_mes(MeOverride,MEs).
-
-check_notifications(true, _Symbolic, _Traps) ->
- ?vtrace("trapentry override = true => skip check",[]),
- true;
-check_notifications(_, Symbolic, Traps) ->
- check_notifications(Symbolic, Traps).
-
-check_notifications(true, Traps) ->
- check_notifications(Traps);
-check_notifications(_, _) -> true.
-
-check_notifications([]) -> true;
-check_notifications([#trap{trapname = Key} = Trap | Traps]) ->
- ?vtrace("check notification [trap] with Key: ~p",[Key]),
- case snmpa_symbolic_store:get_notification(Key) of
- {value, Trap} -> check_notifications(Traps);
- {value, _} -> throw({error, {'trap already defined', Key}});
- undefined -> check_notifications(Traps)
- end;
-check_notifications([#notification{trapname = Key} = Notif | Traps]) ->
- ?vtrace("check notification [notification] with Key: ~p",[Key]),
- case snmpa_symbolic_store:get_notification(Key) of
- {value, Notif} ->
- check_notifications(Traps);
- {value, _} ->
- throw({error, {'notification already defined', Key}});
- undefined ->
- check_notifications(Traps)
- end;
-check_notifications([Crap | Traps]) ->
- ?vlog("skipped check of: ~n~p",[Crap]),
- check_notifications(Traps).
-
-check_mes(true,_) ->
- ?vtrace("mibentry override = true => skip check",[]),
- true;
-check_mes(_,MEs) ->
- check_mes(MEs).
-
-check_mes([]) -> true;
-check_mes([#me{aliasname = Name, oid = Oid1} | MEs]) ->
- ?vtrace("check mib entries with aliasname: ~p",[Name]),
- case snmpa_symbolic_store:aliasname_to_oid(Name) of
- {value, Oid1} ->
- check_mes(MEs);
- {value, Oid2} ->
- ?vinfo("~n expecting '~p'~n but found '~p'",[Oid1, Oid2]),
- throw({error, {'mibentry already defined', Name}});
- false ->
- check_mes(MEs)
- end;
-check_mes([Crap | MEs]) ->
- ?vlog("skipped check of: ~n~p",[Crap]),
- check_mes(MEs).
-
-
-
-%%----------------------------------------------------------------------
-%% Returns: new mib data | {error, Reason}
-%%----------------------------------------------------------------------
-unload_mib(MibData, FileName, _, _) when is_list(FileName) ->
- MibName = list_to_atom(filename:basename(FileName, ".bin")),
- (catch do_unload_mib(MibData, MibName)).
-
-do_unload_mib(MibData, MibName) ->
- ?vtrace("do_unload_mib -> entry with"
- "~n MibName: ~p", [MibName]),
- #mib_data{mib_db = MibDb,
- node_db = NodeDb,
- %% tree_db = TreeDb,
- tree = Tree} = MibData,
- #mib_info{symbolic = Symbolic} = verify_loaded(MibDb, MibName),
- NewRoot = delete_mib_from_tree(MibName, Tree#tree.root),
- MEs = uninstall_mes(NodeDb, MibName),
- uninstall_mib(MibDb, Symbolic, MibName, MEs),
- NewMibData = MibData#mib_data{tree = Tree#tree{root = NewRoot}},
- {ok, NewMibData}.
-
-verify_loaded(Db, Name) ->
- case snmpa_general_db:read(Db, Name) of
- {value, MibInfo} ->
- MibInfo;
- false ->
- throw({error, 'not loaded'})
- end.
-
-
-close(#mib_data{mib_db = MibDb, node_db = NodeDb, tree_db = TreeDb}) ->
- snmpa_general_db:close(MibDb),
- snmpa_general_db:close(NodeDb),
- snmpa_general_db:close(TreeDb),
- ok.
-
-register_subagent(#mib_data{tree = T} = MibData, Oid, Pid) ->
- case insert_subagent(Oid, T#tree.root) of
- {error, Reason} ->
- {error, Reason};
- NewRootTree ->
- SAs = [{Pid, Oid} | MibData#mib_data.subagents],
- T2 = T#tree{root = NewRootTree},
- MibData#mib_data{tree = T2, subagents = SAs}
- end.
-
-
-%%----------------------------------------------------------------------
-%% Purpose: Get a list of all loaded mibs
-%% Returns: [{Name, File}]
-%%----------------------------------------------------------------------
-
-which_mibs(#mib_data{mib_db = Db}) ->
- Mibs = snmpa_general_db:tab2list(Db),
- [{Name, File} || #mib_info{name = Name, file_name = File} <- Mibs].
-
-
-%%----------------------------------------------------------------------
-%% Purpose: Get a list of all loaded mibs
-%% Returns: [{Name, File}]
-%%----------------------------------------------------------------------
-
-whereis_mib(#mib_data{mib_db = Db}, Name) ->
- case snmpa_general_db:read(Db, Name) of
- {value, #mib_info{file_name = File}} ->
- {ok, File};
- false ->
- {error, not_found}
- end.
-
-
-%%----------------------------------------------------------------------
-%% Purpose: Deletes SA with Pid from all subtrees it handles.
-%% Returns: NewMibData.
-%%----------------------------------------------------------------------
-unregister_subagent(MibData, Pid) when is_pid(Pid) ->
- SAs = MibData#mib_data.subagents,
- case lists:keysearch(Pid, 1, SAs) of
- false -> MibData;
- {value, {Pid, Oid}} ->
- % we should never get an error since Oid is found in MibData.
- {ok, NewMibData, _DeletedSA} = unregister_subagent(MibData, Oid),
- % continue if the same Pid handles other mib subtrees.
- unregister_subagent(NewMibData, Pid)
- end;
-
-%%----------------------------------------------------------------------
-%% Purpose: Deletes one unique subagent.
-%% Returns: {error, Reason} | {ok, NewMibData, DeletedSubagentPid}
-%%----------------------------------------------------------------------
-unregister_subagent(#mib_data{tree = T} = MibData, Oid) when is_list(Oid) ->
- case catch delete_subagent(T#tree.root, Oid) of
- {tree, Tree, Info} ->
- OldSAs = MibData#mib_data.subagents,
- {value, {Pid, _Oid}} = lists:keysearch(Oid, 2, OldSAs),
- SAs = lists:keydelete(Oid, 2, OldSAs),
- T2 = T#tree{root = {tree, Tree, Info}},
- {ok,
- MibData#mib_data{tree = T2, subagents = SAs},
- Pid};
- _ ->
- {error, {'invalid oid', Oid}}
- end.
-
-%%----------------------------------------------------------------------
-%% Purpose: To inpect memory usage, loaded mibs, registered subagents
-%%----------------------------------------------------------------------
-info(MibData) ->
- ?vtrace("retrieve info",[]),
- #mib_data{mib_db = MibDb, node_db = NodeDb, tree_db = TreeDb,
- tree = Tree, subagents = SAs} = MibData,
- LoadedMibs = old_format(snmpa_general_db:tab2list(MibDb)),
- TreeSize = snmp_misc:mem_size(Tree),
- {memory, ProcSize} = erlang:process_info(self(),memory),
- MibDbSize = snmpa_general_db:info(MibDb, memory),
- NodeDbSize = snmpa_general_db:info(NodeDb, memory),
- TreeDbSize = snmpa_general_db:info(TreeDb, memory),
- [{loaded_mibs, LoadedMibs}, {subagents, SAs}, {tree_size_bytes, TreeSize},
- {process_memory, ProcSize},
- {db_memory, [{mib,MibDbSize},{node,NodeDbSize},{tree,TreeDbSize}]}].
-
-info(#mib_data{mib_db = MibDb}, loaded_mibs) ->
- Mibs = snmpa_general_db:tab2list(MibDb),
- [filename:rootname(FN, ".bin") || #mib_info{file_name = FN} <- Mibs];
-info(#mib_data{tree = Tree}, tree_size_bytes) ->
- snmp_misc:mem_size(Tree);
-info(_, process_memory) ->
- {memory, ProcSize} = erlang:process_info(self(),memory),
- ProcSize;
-info(#mib_data{mib_db = MibDb, node_db = NodeDb, tree_db = TreeDb},
- db_memory) ->
- MibDbSize = snmpa_general_db:info(MibDb, memory),
- NodeDbSize = snmpa_general_db:info(NodeDb, memory),
- TreeDbSize = snmpa_general_db:info(TreeDb, memory),
- [{mib,MibDbSize},{node,NodeDbSize},{tree,TreeDbSize}];
-info(#mib_data{subagents = SAs}, subagents) ->
- SAs.
-
-old_format(LoadedMibs) ->
- ?vtrace("convert mib info to old format",[]),
- [{N,S,F} || #mib_info{name=N,symbolic=S,file_name=F} <- LoadedMibs].
-
-
-%%----------------------------------------------------------------------
-%% A total dump for debugging.
-%%----------------------------------------------------------------------
-dump(#mib_data{mib_db = MibDb, node_db = NodeDb, tree = Tree}) ->
- (catch io:format("MIB-tables:~n~p~n~n",
- [snmpa_general_db:tab2list(MibDb)])),
- (catch io:format("MIB-entries:~n~p~n~n",
- [snmpa_general_db:tab2list(NodeDb)])),
- (catch io:format("Tree:~n~p~n", [Tree])), % good luck reading it!
- ok.
-
-dump(#mib_data{mib_db = MibDb, node_db = NodeDb, tree = Tree}, File) ->
- case file:open(File,[write]) of
- {ok, Fd} ->
- io:format(Fd,"~s~n",
- [snmp:date_and_time_to_string(snmp:date_and_time())]),
- (catch io:format(Fd,"MIB-tables:~n~p~n~n",
- [snmpa_general_db:tab2list(MibDb)])),
- (catch io:format(Fd, "MIB-entries:~n~p~n~n",
- [snmpa_general_db:tab2list(NodeDb)])),
- io:format(Fd,"Tree:~n~p~n", [Tree]), % good luck reading it!
- file:close(Fd),
- ok;
- {error,Reason} ->
- ?vinfo("~n Failed opening file '~s' for reason ~p",
- [File,Reason]),
- {error,Reason}
- end.
-
-
-backup(#mib_data{mib_db = M, node_db = N, tree_db = T}, BackupDir) ->
- MRes = snmpa_general_db:backup(M, BackupDir),
- NRes = snmpa_general_db:backup(N, BackupDir),
- TRes = snmpa_general_db:backup(T, BackupDir),
- handle_backup_res([{mib_db, MRes}, {node_db, NRes}, {tree_db, TRes}]).
-
-handle_backup_res(Res) ->
- handle_backup_res(Res, []).
-
-handle_backup_res([], []) ->
- ok;
-handle_backup_res([], Err) ->
- {error, lists:reverse(Err)};
-handle_backup_res([{_, ok}|Res], Err) ->
- handle_backup_res(Res, Err);
-handle_backup_res([{Tag, {error, Reason}}|Res], Err) ->
- handle_backup_res(Res, [{Tag, Reason}|Err]);
-handle_backup_res([{Tag, Error}|Res], Err) ->
- handle_backup_res(Res, [{Tag, Error}|Err]).
-
-
-%%%======================================================================
-%%% 2. Implementation of tree access
-%%% lookup and next.
-%%%======================================================================
-
-
-which_mib(#mib_data{tree = T} = D, Oid) ->
- ?vtrace("which_mib -> entry with"
- "~n Oid: ~p",[Oid]),
- case (catch find_node(D, T#tree.root, Oid, [])) of
- {variable, _ME, Mib} ->
- ?vtrace("which_mib -> variable:"
- "~n Mib: ~p", [Mib]),
- {ok, Mib};
- {table, _EntryME, _, Mib} ->
- ?vtrace("which_mib -> table:"
- "~n Mib: ~p", [Mib]),
- {ok, Mib};
- {subagent, SubAgentPid, _SANextOid} ->
- ?vtrace("which_mib -> subagent:"
- "~n SubAgentPid: ~p", [SubAgentPid]),
- {error, {subagent, SubAgentPid}};
- {false, ErrorCode} ->
- ?vtrace("which_mib -> false:"
- "~n ErrorCode: ~p",[ErrorCode]),
- {error, ErrorCode};
- false ->
- ?vtrace("which_mib -> false",[]),
- {error, noSuchObject};
- {'EXIT', R} ->
- ?vtrace("which_mib -> exit:"
- "~n R: ~p",[R]),
- {error, noSuchObject}
- end.
-
-
-%%-----------------------------------------------------------------
-%% Func: lookup/2
-%% Purpose: Finds the mib entry corresponding to the Oid. If it is a
-%% variable, the Oid must be <Oid for var>.0 and if it is
-%% a table, Oid must be <table>.<entry>.<col>.<any>
-%% Returns: {variable, MibEntry} |
-%% {table_column, MibEntry, TableEntryOid} |
-%% {subagent, SubAgentPid, SAOid} |
-%% {false, Reason}
-%%-----------------------------------------------------------------
-lookup(#mib_data{tree = T} = D, Oid) ->
- ?vtrace("lookup -> entry with"
- "~n Oid: ~p",[Oid]),
- case (catch find_node(D, T#tree.root, Oid, [])) of
- {variable, ME, _Mib} when is_record(ME, me) ->
- ?vtrace("lookup -> variable:"
- "~n ME: ~p",[ME]),
- {variable, ME};
- {table, EntryME, {ColME, TableEntryOid}, _Mib} ->
- ?vtrace("lookup -> table:"
- "~n EntryME: ~p"
- "~n ColME: ~p"
- "~n RevTableEntryOid: ~p",
- [EntryME, ColME, TableEntryOid]),
- MFA = EntryME#me.mfa,
- RetME = ColME#me{mfa = MFA},
- {table_column, RetME, TableEntryOid};
- {subagent, SubAgentPid, SANextOid} ->
- ?vtrace("lookup -> subagent:"
- "~n SubAgentPid: ~p"
- "~n SANextOid: ~p", [SubAgentPid, SANextOid]),
- {subagent, SubAgentPid, SANextOid};
- {false, ErrorCode} ->
- ?vtrace("lookup -> false:"
- "~n ErrorCode: ~p",[ErrorCode]),
- {false, ErrorCode};
- false ->
- ?vtrace("lookup -> false",[]),
- {false, noSuchObject};
- {'EXIT', R} ->
- ?vtrace("lookup -> exit:"
- "~n R: ~p",[R]),
- {false, noSuchObject}
- end.
-
-
-find_node(D, {tree, Tree, {table, _}}, RestOfOid, RevOid) ->
- ?vtrace("find_node(tree,table) -> entry with"
- "~n RestOfOid: ~p"
- "~n RevOid: ~p",[RestOfOid, RevOid]),
- find_node(D, {tree, Tree, internal}, RestOfOid, RevOid);
-find_node(D, {tree, Tree, {table_entry, _}}, RestOfOid, RevOid) ->
- ?vtrace("find_node(tree,table_entry) -> entry with"
- "~n RestOfOid: ~p"
- "~n RevOid: ~p",[RestOfOid, RevOid]),
- #mib_data{node_db = Db} = D,
- Oid = lists:reverse(RevOid),
- case snmpa_general_db:read(Db, Oid) of
- {value, #node_info{me = ME, mib_name = Mib}} ->
- case find_node(D, {tree, Tree, internal}, RestOfOid, RevOid) of
- {false, ErrorCode} -> {false, ErrorCode};
- Val -> {table, ME, Val, Mib}
- end;
- false ->
- ?vinfo("find_node -> could not find table_entry ME with"
- "~n RevOid: ~p"
- "~n when"
- "~n RestOfOid: ~p",
- [RevOid, RestOfOid]),
- false
- end;
-find_node(D, {tree, Tree, _Internal}, [Int | RestOfOid], RevOid) ->
- ?vtrace("find_node(tree) -> entry with"
- "~n Int: ~p"
- "~n RestOfOid: ~p"
- "~n RevOid: ~p",[Int, RestOfOid, RevOid]),
- find_node(D, element(Int+1, Tree), RestOfOid, [Int | RevOid]);
-find_node(D, {node, {table_column, _}}, RestOfOid, [ColInt | RevOid]) ->
- ?vtrace("find_node(tree,table_column) -> entry with"
- "~n RestOfOid: ~p"
- "~n ColInt: ~p"
- "~n RevOid: ~p",[RestOfOid, ColInt, RevOid]),
- #mib_data{node_db = Db} = D,
- Oid = lists:reverse([ColInt | RevOid]),
- case snmpa_general_db:read(Db, Oid) of
- {value, #node_info{me = ME}} ->
- {ME, lists:reverse(RevOid)};
- false ->
- X = snmpa_general_db:read(Db, lists:reverse([ColInt | RevOid])),
- ?vinfo("find_node -> could not find table_column ME with"
- "~n RevOid: ~p"
- "~n trying [~p|~p]"
- "~n X: ~p",
- [RevOid, [ColInt | RevOid], X]),
- false
- end;
-find_node(D, {node, {variable, _MibName}}, [0], RevOid) ->
- ?vtrace("find_node(tree,variable,[0]) -> entry with"
- "~n RevOid: ~p",[RevOid]),
- #mib_data{node_db = Db} = D,
- Oid = lists:reverse(RevOid),
- %% {value, #node_info{me = ME}} = snmpa_general_db:read(Db, Oid),
- case snmpa_general_db:read(Db, Oid) of
- {value, #node_info{me = ME, mib_name = Mib}} ->
- {variable, ME, Mib};
- false ->
- ?vinfo("find_node -> could not find variable ME with"
- "~n RevOid: ~p", [RevOid]),
- false
- end;
-find_node(_D, {node, {variable, _MibName}}, [], _RevOid) ->
- ?vtrace("find_node(tree,variable,[]) -> entry",[]),
- {false, noSuchObject};
-find_node(_D, {node, {variable, _MibName}}, _, _RevOid) ->
- ?vtrace("find_node(tree,variable) -> entry",[]),
- {false, noSuchInstance};
-find_node(D, {node, subagent}, _RestOfOid, SARevOid) ->
- ?vtrace("find_node(tree,subagent) -> entry with"
- "~n SARevOid: ~p",[SARevOid]),
- #mib_data{subagents = SAs} = D,
- SAOid = lists:reverse(SARevOid),
- case lists:keysearch(SAOid, 2, SAs) of
- {value, {SubAgentPid, SAOid}} ->
- {subagent, SubAgentPid, SAOid};
- false ->
- ?vinfo("find_node -> could not find subagent with"
- "~n SAOid: ~p"
- "~n SAs: ~p", [SAOid, SAs]),
- false
- end;
-find_node(_D, Node, _RestOfOid, _RevOid) ->
- ?vtrace("find_node -> failed:~n~p",[Node]),
- {false, noSuchObject}.
-
-
-%%-----------------------------------------------------------------
-%% Func: next/3
-%% Purpose: Finds the lexicographically next oid.
-%% Returns: endOfMibView |
-%% {subagent, SubAgentPid, SAOid} |
-%% {variable, MibEntry, VarOid} |
-%% {table, TableOid, TableRestOid, MibEntry}
-%% If a variable is returnes, it is in the MibView.
-%% If a table or subagent is returned, it *may* be in the MibView.
-%%-----------------------------------------------------------------
-next(#mib_data{tree = T} = D, Oid, MibView) ->
- case catch next_node(D, T#tree.root, Oid, [], MibView) of
- false -> endOfMibView;
- Else -> Else
- end.
-
-%%-----------------------------------------------------------------
-%% This function is used as long as we have any Oid left. Take
-%% one integer at a time from the Oid, and traverse the tree
-%% accordingly. When the Oid is empty, call find_next.
-%% Returns: {subagent, SubAgentPid, SAOid} |
-%% false |
-%% {variable, MibEntry, VarOid} |
-%% {table, TableOid, TableRestOid, MibEntry}
-%%-----------------------------------------------------------------
-next_node(_D, undefined_node, _Oid, _RevOidSoFar, _MibView) ->
- ?vtrace("next_node(undefined_node) -> entry", []),
- false;
-
-next_node(_D, {tree, Tree, {table_entry, _Id}}, [Int | _Oid],
- _RevOidSoFar, _MibView)
- when Int+1 > size(Tree) ->
- ?vtrace("next_node(tree,table_entry) -> entry when not found whith"
- "~n Int: ~p"
- "~n size(Tree): ~p", [Int, size(Tree)]),
- false;
-next_node(D, {tree, Tree, {table_entry, _MibName}},
- Oid, RevOidSoFar, MibView) ->
- ?vtrace("next_node(tree,table_entry) -> entry when"
- "~n size(Tree): ~p"
- "~n Oid: ~p"
- "~n RevOidSoFar: ~p"
- "~n MibView: ~p", [size(Tree), Oid, RevOidSoFar, MibView]),
- OidSoFar = lists:reverse(RevOidSoFar),
- case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
- true ->
- ?vdebug("next_node(tree,table_entry) -> not in mib view",[]),
- false;
- _ ->
- #mib_data{node_db = Db} = D,
- case snmpa_general_db:read(Db, OidSoFar) of
- false ->
- ?vinfo("next_node -> could not find table_entry with"
- "~n OidSoFar: ~p", [OidSoFar]),
- false;
- {value, #node_info{me = ME}} ->
- ?vtrace("next_node(tree,table_entry) -> found: ~n ~p",
- [ME]),
- {table, OidSoFar, Oid, ME}
- end
- end;
-
-next_node(D, {tree, Tree, _Info}, [Int | RestOfOid], RevOidSoFar, MibView)
- when (Int < size(Tree)) andalso (Int >= 0) ->
- ?vtrace("next_node(tree) -> entry when"
- "~n size(Tree): ~p"
- "~n Int: ~p"
- "~n RestOfOid: ~p"
- "~n RevOidSoFar: ~p"
- "~n MibView: ~p",
- [size(Tree), Int, RestOfOid, RevOidSoFar, MibView]),
- case next_node(D, element(Int+1,Tree),
- RestOfOid, [Int|RevOidSoFar], MibView) of
- false ->
- find_next(D, {tree, Tree, _Info}, Int+1, RevOidSoFar, MibView);
- Else ->
- Else
- end;
-%% no solution
-next_node(D, {tree, Tree, _Info}, [], RevOidSoFar, MibView) ->
- ?vtrace("next_node(tree,[]) -> entry when"
- "~n size(Tree): ~p"
- "~n RevOidSoFar: ~p"
- "~n MibView: ~p",
- [size(Tree), RevOidSoFar, MibView]),
- find_next(D, {tree, Tree, _Info}, 0, RevOidSoFar, MibView);
-next_node(_D, {tree, Tree, _Info}, _RestOfOid, _RevOidSoFar, _MibView) ->
- ?vtrace("next_node(tree) -> entry when"
- "~n size(Tree): ~p", [size(Tree)]),
- false;
-
-next_node(D, {node, subagent}, Oid, RevOidSoFar, MibView) ->
- ?vtrace("next_node(node,subagent) -> entry when"
- "~n Oid: ~p"
- "~n RevOidSoFar: ~p"
- "~n MibView: ~p",
- [Oid, RevOidSoFar, MibView]),
- OidSoFar = lists:reverse(RevOidSoFar),
- case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
- true ->
- false;
- _ ->
- #mib_data{subagents = SAs} = D,
- case lists:keysearch(OidSoFar, 2, SAs) of
- {value, {SubAgentPid, OidSoFar}} ->
- {subagent, SubAgentPid, OidSoFar};
- _ ->
- ?vinfo("next_node -> could not find subagent with"
- "~n OidSoFar: ~p"
- "~n SAs: ~p", [OidSoFar, SAs]),
- false
- end
- end;
-
-next_node(D, {node, {variable, _MibName}}, [], RevOidSoFar, MibView) ->
- ?vtrace("next_node(node,variable,[]) -> entry when"
- "~n RevOidSoFar: ~p"
- "~n MibView: ~p",
- [RevOidSoFar, MibView]),
- OidSoFar = lists:reverse([0 | RevOidSoFar]),
- case snmpa_acm:validate_mib_view(OidSoFar, MibView) of
- true ->
- #mib_data{node_db = Db} = D,
- case snmpa_general_db:read(Db, lists:reverse(RevOidSoFar)) of
- false ->
- ?vinfo("next_node -> could not find variable with"
- "~n RevOidSoFar: ~p", [RevOidSoFar]),
- false;
- {value, #node_info{me = ME}} ->
- {variable, ME, OidSoFar}
- end;
- _ ->
- false
- end;
-
-next_node(_D, {node, {variable, _MibName}}, _Oid, _RevOidSoFar, _MibView) ->
- ?vtrace("next_node(node,variable) -> entry", []),
- false.
-
-%%-----------------------------------------------------------------
-%% This function is used to find the first leaf from where we
-%% are.
-%% Returns: {subagent, SubAgentPid, SAOid} |
-%% false |
-%% {variable, MibEntry, VarOid} |
-%% {table, TableOid, TableRestOid, MibEntry}
-%% PRE: This function must always be called with a {internal, Tree}
-%% node.
-%%-----------------------------------------------------------------
-find_next(D, {tree, Tree, internal}, Idx, RevOidSoFar, MibView)
- when Idx < size(Tree) ->
- case find_next(D, element(Idx+1, Tree), 0, [Idx| RevOidSoFar], MibView) of
- false ->
- find_next(D, {tree, Tree, internal}, Idx+1, RevOidSoFar, MibView);
- Other ->
- Other
- end;
-find_next(_D, {tree, _Tree, internal}, _Idx, _RevOidSoFar, _MibView) ->
- false;
-find_next(_D, undefined_node, _Idx, _RevOidSoFar, _MibView) ->
- false;
-find_next(D, {tree, Tree, {table, _MibName}}, Idx, RevOidSoFar, MibView) ->
- find_next(D, {tree, Tree, internal}, Idx, RevOidSoFar, MibView);
-find_next(D, {tree, _Tree, {table_entry, _MibName}}, _Index,
- RevOidSoFar, MibView) ->
- OidSoFar = lists:reverse(RevOidSoFar),
- case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
- true ->
- false;
- _ ->
- #mib_data{node_db = Db} = D,
- case snmpa_general_db:read(Db, OidSoFar) of
- false ->
- ?vinfo("find_next -> could not find table_entry ME with"
- "~n OidSoFar: ~p", [OidSoFar]),
- false;
- {value, #node_info{me = ME}} ->
- {table, OidSoFar, [], ME}
- end
- end;
-find_next(D, {node, {variable, _MibName}}, _Idx, RevOidSoFar, MibView) ->
- OidSoFar = lists:reverse([0 | RevOidSoFar]),
- case snmpa_acm:validate_mib_view(OidSoFar, MibView) of
- true ->
- #mib_data{node_db = Db} = D,
- case snmpa_general_db:read(Db, lists:reverse(RevOidSoFar)) of
- false ->
- ?vinfo("find_next -> could not find variable with"
- "~n RevOidSoFar: ~p", [RevOidSoFar]),
- false;
- {value, #node_info{me = ME}} ->
- {variable, ME, OidSoFar}
- end;
- _ ->
- false
- end;
-find_next(D, {node, subagent}, _Idx, RevOidSoFar, MibView) ->
- OidSoFar = lists:reverse(RevOidSoFar),
- case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
- true ->
- false;
- _ ->
- #mib_data{subagents = SAs} = D,
- case lists:keysearch(OidSoFar, 2, SAs) of
- {value, {SubAgentPid, OidSoFar}} ->
- {subagent, SubAgentPid, OidSoFar};
- false ->
- ?vinfo("find_node -> could not find subagent with"
- "~n OidSoFar: ~p"
- "~n SAs: ~p", [OidSoFar, SAs]),
- false
- end
- end.
-
-%%%======================================================================
-%%% 3. Tree building functions
-%%% Used when loading mibs.
-%%%======================================================================
-
-build_tree(Mes, MibName) ->
- ?d("build_tree -> "
- "~n Mes: ~p", [Mes]),
- {ListTree, []} = build_subtree([], Mes, MibName),
- {tree, convert_tree(ListTree), internal}.
-
-%%----------------------------------------------------------------------
-%% Purpose: Builds the tree where all oids have prefix equal to LevelPrefix.
-%% Returns: {Tree, RestMes}
-%% RestMes are Mes that should not be in this subtree.
-%% The Tree is a temporary and simplified data structure that is easy to
-%% convert to the final tuple tree used by the MIB process.
-%% A Node is represented as in the final tree.
-%% The tree is not represented as a N-tuple, but as an Index-list.
-%% Example: Temporary: [{1, Node1}, {3, Node3}]
-%% Final: {Node1, undefined_node, Node3}
-%% Pre: Mes are sorted on oid.
-%%----------------------------------------------------------------------
-build_subtree(LevelPrefix, [Me | Mes], MibName) ->
- ?vtrace("build subtree -> ~n"
- " oid: ~p~n"
- " LevelPrefix: ~p~n"
- " MibName: ~p", [Me#me.oid, LevelPrefix, MibName]),
- EType = Me#me.entrytype,
- ?vtrace("build subtree -> EType = ~p",[EType]),
- case in_subtree(LevelPrefix, Me) of
- above ->
- ?vtrace("build subtree -> above",[]),
- {[], [Me|Mes]};
- {node, Index} ->
- ?vtrace("build subtree -> node at ~p",[Index]),
- {Tree, RestMes} = build_subtree(LevelPrefix, Mes, MibName),
- {[{Index, {node, {EType, MibName}}} | Tree], RestMes};
- {subtree, Index, NewLevelPrefix} ->
- ?vtrace("build subtree -> subtree at"
- "~n ~w with ~w",
- [Index, NewLevelPrefix]),
- {BelowTree, RestMes} =
- build_subtree(NewLevelPrefix, Mes, MibName),
- {CurTree, RestMes2} =
- build_subtree(LevelPrefix, RestMes, MibName),
- {[{Index, {tree, BelowTree, {EType,MibName}}}| CurTree], RestMes2};
- {internal_subtree, Index, NewLevelPrefix} ->
- ?vtrace("build subtree -> internal_subtree at"
- "~n ~w with ~w",
- [Index,NewLevelPrefix]),
- {BelowTree, RestMes} =
- build_subtree(NewLevelPrefix, [Me | Mes], MibName),
- {CurTree, RestMes2} =
- build_subtree(LevelPrefix, RestMes, MibName),
- {[{Index, {tree, BelowTree, internal}} | CurTree], RestMes2}
- end;
-
-build_subtree(_LevelPrefix, [], _MibName) ->
- ?vtrace("build subtree -> done", []),
- {[], []}.
-
-%%--------------------------------------------------
-%% Purpose: Determine how/if/where Me should be inserted in subtree
-%% with LevelPrefix. This function does not build any tree, only
-%% determinses what should be done (by build subtree).
-%% Returns:
-%% above - Indicating that this ME should _not_ be in this subtree.
-%% {node, Index} - yes, construct a node with index Index on this level
-%% {internal_subtree, Index, NewLevelPrefix} - yes, there should be an
-%% internal subtree at this index.
-%% {subtree, Index, NewLevelPrefix} - yes, construct a subtree with
-%% NewLevelPrefix and insert this on current level in position Index.
-%%--------------------------------------------------
-in_subtree(LevelPrefix, Me) ->
- case lists:prefix(LevelPrefix, Me#me.oid) of
- true when length(Me#me.oid) > length(LevelPrefix) ->
- classify_how_in_subtree(LevelPrefix, Me);
- _ ->
- above
- end.
-
-%%--------------------------------------------------
-%% See comment about in_subtree/2. This function takes care of all cases
-%% where the ME really should be in _this_ subtree (not above).
-%%--------------------------------------------------
-classify_how_in_subtree(LevelPrefix, Me)
- when (length(Me#me.oid) =:= (length(LevelPrefix) + 1)) ->
- Oid = Me#me.oid,
- case node_or_subtree(Me#me.entrytype) of
- subtree ->
- {subtree, lists:last(Oid), Oid};
- node ->
- {node, lists:last(Oid)}
- end;
-
-classify_how_in_subtree(LevelPrefix, Me)
- when (length(Me#me.oid) > (length(LevelPrefix) + 1)) ->
- L1 = length(LevelPrefix) + 1,
- Oid = Me#me.oid,
- {internal_subtree, lists:nth(L1, Oid), lists:sublist(Oid, 1, L1)}.
-
-%%--------------------------------------------------
-%% Determines how to treat different kinds om MEs in the tree building process.
-%% Pre: all internal nodes have been removed.
-%%--------------------------------------------------
-node_or_subtree(table) -> subtree;
-node_or_subtree(table_entry) -> subtree;
-node_or_subtree(variable) -> node;
-node_or_subtree(table_column) -> node.
-
-%%--------------------------------------------------
-%% Purpose: (Recursively) Converts a temporary tree (see above) to a final tree.
-%% If input is a ListTree, output is a TupleTree.
-%% If input is a Node, output is the same Node.
-%% Pre: All Indexes are >= 0.
-%%--------------------------------------------------
-convert_tree({Index, {tree, Tree, Info}}) when Index >= 0 ->
- L = lists:map(fun convert_tree/1, Tree),
- {Index, {tree, dict_list_to_tuple(L), Info}};
-convert_tree({Index, {node, Info}}) when Index >= 0 ->
- {Index, {node, Info}};
-convert_tree(Tree) when is_list(Tree) ->
- L = lists:map(fun convert_tree/1, Tree),
- dict_list_to_tuple(L).
-
-%%----------------------------------------------------------------------
-%% Purpose: Converts a single level (that is non-recursively) from
-%% the temporary indexlist to the N-tuple.
-%% Input: A list of {Index, Data}.
-%% Output: A tuple where element Index is Data.
-%%----------------------------------------------------------------------
-dict_list_to_tuple(L) ->
- L2 = lists:keysort(1, L),
- list_to_tuple(integrate_indexes(0, L2)).
-
-%%----------------------------------------------------------------------
-%% Purpose: Helper function for dict_list_to_tuple/1.
-%% Converts an indexlist to a N-list.
-%% Input: A list of {Index, Data}.
-%% Output: A (usually longer, never shorter) list where element Index is Data.
-%% Example: [{1,hej}, {3, sven}] will give output
-%% [undefined_node, hej, undefined_node, sven].
-%% Initially CurIndex should be 0.
-%%----------------------------------------------------------------------
-integrate_indexes(CurIndex, [{CurIndex, Data} | T]) ->
- [Data | integrate_indexes(CurIndex + 1, T)];
-integrate_indexes(_Index, []) ->
- [];
-integrate_indexes(CurIndex, L) ->
- [undefined_node | integrate_indexes(CurIndex + 1, L)].
-
-%%%======================================================================
-%%% 4. Tree merging
-%%% Used by: load mib, insert subagent.
-%%%======================================================================
-
-%%----------------------------------------------------------------------
-%% Arg: Two root nodes (that is to be merged).
-%% Returns: A new root node where the nodes have been merger to one.
-%%----------------------------------------------------------------------
-merge_nodes(Same, Same) ->
- Same;
-merge_nodes(Node, undefined_node) ->
- Node;
-merge_nodes(undefined_node, Node) ->
- Node;
-merge_nodes({tree, Tree1, internal}, {tree, Tree2, internal}) ->
- {tree, merge_levels(tuple_to_list(Tree1),tuple_to_list(Tree2)), internal};
-merge_nodes(Node1, Node2) ->
- throw({error_merge_nodes, Node1, Node2}).
-
-%%----------------------------------------------------------------------
-%% Arg: Two levels to be merged.
-%% Here, a level is represented as a list of nodes. A list is easier
-%% to extend than a tuple.
-%% Returns: The resulting, merged level tuple.
-%%----------------------------------------------------------------------
-merge_levels(Level1, Level2) when length(Level1) =:= length(Level2) ->
- MergeNodes = fun(N1, N2) -> merge_nodes(N1, N2) end,
- list_to_tuple(snmp_misc:multi_map(MergeNodes, [Level1, Level2]));
-merge_levels(Level1, Level2) when length(Level1) > length(Level2) ->
- merge_levels(Level1, Level2 ++
- undefined_nodes_list(length(Level1) - length(Level2)));
-merge_levels(Level1, Level2) when length(Level1) < length(Level2) ->
- merge_levels(Level2, Level1).
-
-undefined_nodes_list(N) -> lists:duplicate(N, undefined_node).
-
-
-%%%======================================================================
-%%% 5. Tree deletion routines
-%%% (for unload mib)
-%%%======================================================================
-
-%%----------------------------------------------------------------------
-%% Purpose: Actually kicks of the tree reconstruction.
-%% Returns: {list of removed MEs, NewTree}
-%%----------------------------------------------------------------------
-delete_mib_from_tree(MibName, {tree, Tree, internal}) ->
- case delete_tree(Tree, MibName) of
- [] ->
- {tree, {undefined_node}, internal}; % reduce
- LevelList ->
- {tree, list_to_tuple(LevelList), internal}
- end.
-
-%%----------------------------------------------------------------------
-%% Purpose: Deletes all nodes associated to MibName from this level and
-%% all levels below.
-%% If the new level does not contain information (that is, no
-%% other mibs use it) anymore the empty list is returned.
-%% Returns: {MEs, The new level represented as a list}
-%%----------------------------------------------------------------------
-delete_tree(Tree, MibName) when is_tuple(Tree) ->
- NewLevel = delete_nodes(tuple_to_list(Tree), MibName, []),
- case lists:filter(fun drop_undefined_nodes/1,NewLevel) of
- [] -> [];
- _A_perhaps_shorted_list ->
- NewLevel % some other mib needs this level
- end.
-
-%%----------------------------------------------------------------------
-%% Purpose: Nodes belonging to MibName are removed from the tree.
-%% Recursively deletes sub trees to this node.
-%% Returns: {MEs, NewNodesList}
-%%----------------------------------------------------------------------
-delete_nodes([], _MibName, AccNodes) ->
- lists:reverse(AccNodes);
-
-delete_nodes([{node, {variable, MibName}}|T], MibName, AccNodes) ->
- delete_nodes(T, MibName, [undefined_node | AccNodes]);
-
-delete_nodes([{node, {table_column, MibName}}|T], MibName, AccNodes) ->
- delete_nodes(T, MibName, [undefined_node | AccNodes]);
-
-delete_nodes([{tree, _Tree, {table, MibName}}|T], MibName, AccNodes) ->
- delete_nodes(T, MibName, [undefined_node | AccNodes]);
-
-delete_nodes([{tree, _Tree, {table_entry, MibName}}|T], MibName, AccNodes) ->
- delete_nodes(T, MibName, [undefined_node | AccNodes]);
-
-delete_nodes([{tree, Tree, Info}|T], MibName, AccNodes) ->
- case delete_tree(Tree, MibName) of
- [] -> % tree completely deleted
- delete_nodes(T, MibName, [undefined_node | AccNodes]);
- LevelList ->
- delete_nodes(T, MibName,
- [{tree, list_to_tuple(LevelList), Info} | AccNodes])
- end;
-
-delete_nodes([NodeToKeep|T], MibName, AccNodes) ->
- delete_nodes(T, MibName, [NodeToKeep | AccNodes]).
-
-drop_undefined_nodes(undefined_node) -> false;
-drop_undefined_nodes(_) -> true.
-
-
-%%%======================================================================
-%%% 6. Functions for subagent handling
-%%%======================================================================
-
-%%----------------------------------------------------------------------
-%% Returns: A new Root|{error, reason}
-%%----------------------------------------------------------------------
-insert_subagent(Oid, OldRoot) ->
- ListTree = build_tree_for_subagent(Oid),
- case catch convert_tree(ListTree) of
- {'EXIT', _Reason} ->
- {error, 'cannot construct tree from oid'};
- Level when is_tuple(Level) ->
- T = {tree, Level, internal},
- case catch merge_nodes(T, OldRoot) of
- {error_merge_nodes, _Node1, _Node2} ->
- {error, oid_conflict};
- NewRoot when is_tuple(NewRoot) andalso
- (element(1, NewRoot) =:= tree) ->
- NewRoot
- end
- end.
-
-build_tree_for_subagent([Index]) ->
- [{Index, {node, subagent}}];
-
-build_tree_for_subagent([Index | T]) ->
- [{Index, {tree, build_tree_for_subagent(T), internal}}].
+-type mib_view() :: [mib_view_elem()].
+-type mib_view_elem() :: {SubTree :: snmp:oid(),
+ Mask :: [non_neg_integer()],
+ Inclusion :: mib_view_inclusion()}.
+-type mib_view_mask() :: [non_neg_integer()].
+-type mib_view_inclusion() :: 1 | 2. % 1 = included, 2 = excluded
-%%----------------------------------------------------------------------
-%% Returns: A new tree where the subagent at Oid (2nd arg) has been deleted.
-%%----------------------------------------------------------------------
-delete_subagent({tree, Tree, Info}, [Index]) ->
- {node, subagent} = element(Index+1, Tree),
- {tree, setelement(Index+1, Tree, undefined_node), Info};
-delete_subagent({tree, Tree, Info}, [Index | TI]) ->
- {tree, setelement(Index+1, Tree,
- delete_subagent(element(Index+1, Tree), TI)), Info}.
+-type filename() :: file:filename().
-%%%======================================================================
-%%% 7. Misc functions
-%%%======================================================================
-%%----------------------------------------------------------------------
-%% Installs the mibs found in the database when starting the agent.
-%% Basically calls the instrumentation functions for all non-internal
-%% mib-entries
-%%----------------------------------------------------------------------
-install_mibs(MibDb, NodeDb) ->
- MibNames = loaded(MibDb),
- ?vtrace("install_mibs -> found following mibs in database: ~n"
- "~p", [MibNames]),
- install_mibs2(NodeDb, MibNames).
+-callback new(MibStorage :: snmpa:mib_storage()) -> State :: term().
-install_mibs2(_, []) ->
- ok;
-install_mibs2(NodeDb, [MibName|MibNames]) ->
- Pattern = #node_info{oid = '_', mib_name = MibName, me = '_'},
- Nodes = snmpa_general_db:match_object(NodeDb, Pattern),
- MEs = [ME || #node_info{me = ME} <- Nodes],
- ?vtrace("install_mibs2 -> installing ~p MEs for mib ~p",
- [length(MEs),MibName]),
- NewF = fun(ME) -> call_instrumentation(ME, new) end,
- lists:foreach(NewF, MEs),
- install_mibs2(NodeDb, MibNames).
-
-
-%%----------------------------------------------------------------------
-%% Does all side effect stuff during load_mib.
-%%----------------------------------------------------------------------
-install_mib(Db, Symbolic, Mib, MibName, FileName, NonInternalMes) ->
- ?vdebug("install_mib -> entry with"
- "~n Symbolic: ~p"
- "~n MibName: ~p"
- "~n FileName: ~p", [Symbolic, MibName, FileName]),
- Rec = #mib_info{name = MibName, symbolic = Symbolic, file_name = FileName},
- snmpa_general_db:write(Db, Rec),
- install_mib2(Symbolic, MibName, Mib),
- NewF = fun(ME) -> call_instrumentation(ME, new) end,
- lists:foreach(NewF, NonInternalMes).
+-callback close(State :: term()) -> ok.
-install_mib2(true, MibName, Mib) ->
- #mib{table_infos = TabInfos,
- variable_infos = VarInfos,
- mes = MEs,
- asn1_types = ASN1Types,
- traps = Traps} = Mib,
- snmpa_symbolic_store:add_table_infos(MibName, TabInfos),
- snmpa_symbolic_store:add_variable_infos(MibName, VarInfos),
- snmpa_symbolic_store:add_aliasnames(MibName, MEs),
- snmpa_symbolic_store:add_types(MibName, ASN1Types),
- SetF = fun(Trap) ->
- snmpa_symbolic_store:set_notification(Trap, MibName)
- end,
- lists:foreach(SetF, Traps);
-install_mib2(_, _, _) ->
- ok.
+-callback sync(State :: term()) -> ok.
-install_mes(_Db, _MibName, []) ->
- ok;
-install_mes(Db, MibName, [ME|MEs]) ->
- Node = #node_info{oid = ME#me.oid, mib_name = MibName, me = ME},
- snmpa_general_db:write(Db, Node),
- install_mes(Db, MibName, MEs).
+-callback load_mib(State :: term(), FileName :: string(),
+ MeOverride :: boolean(),
+ TeOverride :: boolean()) ->
+ {ok, NewState :: term()} | {error, Reason :: already_loaded | term()}.
+-callback unload_mib(State :: term(), FileName :: string(),
+ MeOverride :: boolean(),
+ TeOverride :: boolean()) ->
+ {ok, NewState :: term()} | {error, Reason :: not_loaded | term()}.
-%%----------------------------------------------------------------------
-%% Does all side effect stuff during unload_mib.
-%%----------------------------------------------------------------------
-uninstall_mib(Db, Symbolic, MibName, MEs) ->
- ?vtrace("uninstall_mib -> entry with"
- "~n Db: ~p"
- "~n Symbolic: ~p"
- "~n MibName: ~p", [Db, Symbolic, MibName]),
- Res = snmpa_general_db:delete(Db, MibName),
- ?vtrace("uninstall_mib -> (mib) db delete result: ~p", [Res]),
- uninstall_mib2(Symbolic, MibName),
- DelF = fun(ME) -> call_instrumentation(ME, delete) end,
- lists:foreach(DelF, MEs).
+-callback lookup(State :: term(), Oid :: snmp:oid()) ->
+ {false, Reason :: term()} |
+ {variable, MibEntry :: snmpa:me()} |
+ {table_column, MibEntry :: snmpa:me(), TableEntryOid :: snmp:oid()} |
+ {subagent, SubAgentPid :: pid(), SAOid :: snmp:oid()}.
-uninstall_mib2(true, MibName) ->
- snmpa_symbolic_store:delete_table_infos(MibName),
- snmpa_symbolic_store:delete_variable_infos(MibName),
- snmpa_symbolic_store:delete_aliasnames(MibName),
- snmpa_symbolic_store:delete_types(MibName),
- snmpa_symbolic_store:delete_notifications(MibName);
-uninstall_mib2(_, _) ->
- ok.
+-callback next(State :: term(), Oid :: snmp:oid(), MibView :: mib_view()) ->
+ endOfView | false |
+ {subagent, SubAgentPid :: pid(), SAOid :: snmp:oid()} |
+ {variable, MibEntry :: snmpa:me(), VarOid :: snmp:oid()} |
+ {table, TableOid :: snmp:oid(), TableRestOid :: snmp:oid(), MibEntry :: snmpa:me()}.
-uninstall_mes(Db, MibName) ->
- Pattern = #node_info{oid = '_', mib_name = MibName, me = '_'},
- snmpa_general_db:match_delete(Db, Pattern).
+-callback register_subagent(State :: term(),
+ Oid :: snmp:oid(),
+ Pid :: pid()) ->
+ {ok, NewState :: term()} | {error, Reason :: term()}.
+-callback unregister_subagent(State :: term(),
+ PidOrOid :: pid() | snmp:oid()) ->
+ {ok, NewState :: term()} | % When second arg was a pid()
+ {ok, NewState :: term(), Pid :: pid()} | % When second arg was a oid()
+ {error, Reason :: term()}.
-%%----------------------------------------------------------------------
-%% Create a list of the names of all the loaded mibs
-%%----------------------------------------------------------------------
-loaded(Db) ->
- [N || #mib_info{name = N} <- snmpa_general_db:tab2list(Db)].
-
+-callback dump(State :: term(), Destination :: io | filename()) ->
+ ok | {error, Reason :: term()}.
-%%----------------------------------------------------------------------
-%% Calls MFA-instrumentation with 'new' or 'delete' operation.
-%%----------------------------------------------------------------------
-call_instrumentation(#me{entrytype = variable, mfa={M,F,A}}, Operation) ->
- ?vtrace("call instrumentation with"
- "~n entrytype: variable"
- "~n MFA: {~p,~p,~p}"
- "~n Operation: ~p",
- [M,F,A,Operation]),
- catch apply(M, F, [Operation | A]);
-call_instrumentation(#me{entrytype = table_entry, mfa={M,F,A}}, Operation) ->
- ?vtrace("call instrumentation with"
- "~n entrytype: table_entry"
- "~n MFA: {~p,~p,~p}"
- "~n Operation: ~p",
- [M,F,A,Operation]),
- catch apply(M, F, [Operation | A]);
-call_instrumentation(_ShitME, _Operation) ->
- done.
+-callback which_mib(State :: term(), Oid :: snmp:oid()) ->
+ {ok, Mib :: string()} | {error, Reason :: term()}.
+-callback which_mibs(State :: term()) ->
+ [{MibName :: atom(), Filename :: string()}].
-maybe_drop_me(#me{entrytype = internal}) -> false;
-maybe_drop_me(#me{entrytype = group}) -> false;
-maybe_drop_me(#me{imported = true}) -> false;
-maybe_drop_me(_) -> true.
+-callback whereis_mib(State :: term(), MibName :: atom()) ->
+ {ok, Filename :: string()} | {error, Reason :: term()}.
+-callback info(State :: term()) -> list().
-%%----------------------------------------------------------------------
-%% Code change functions
-%%----------------------------------------------------------------------
+-callback backup(State :: term(), BackupDir :: string()) ->
+ ok | {error, Reason :: term()}.
-code_change(down, State) ->
- ?d("code_change(down) -> entry",[]),
- State;
+-callback code_change(Direction :: up | down,
+ Vsn :: term(),
+ Extra :: term(),
+ State :: term()) ->
+ NewState :: term().
-code_change(up, State) ->
- ?d("code_change(up)",[]),
- State;
-code_change(_Vsn, State) ->
- State.
diff --git a/lib/snmp/src/agent/snmpa_mib_data_ttln.erl b/lib/snmp/src/agent/snmpa_mib_data_ttln.erl
new file mode 100644
index 0000000000..d367e8f13f
--- /dev/null
+++ b/lib/snmp/src/agent/snmpa_mib_data_ttln.erl
@@ -0,0 +1,1402 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013-2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(snmpa_mib_data_ttln).
+
+%%%-----------------------------------------------------------------
+%%%
+%%% THIS FILE IS JUST A PLACE HOLDER - IGNORE
+%%%
+%%%-----------------------------------------------------------------
+
+
+%%%-----------------------------------------------------------------
+%%%
+%%% TTLN - TupleTreeListNodes
+%%%
+%%% This module implements the MIB internal data structures.
+%%% An MIB Data Structure consists of three items; an ets-table,
+%%% a tree and a list of registered subagents.
+%%% The subagent information is consequently duplicated. It resides
+%%% both in the tree and in the list.
+%%% The ets-table contains all data associated with each variable,
+%%% table, tableentry and tablecolumn in the MIB.
+%%% The tree contains information of the Oids in the MIB.
+%%%
+%%% When a mib is loaded, the tree is built from the plain list
+%%% in the binary file.
+%%%
+%%%-----------------------------------------------------------------
+
+-include("snmp_types.hrl").
+-include("snmp_debug.hrl").
+
+-define(VMODULE,"MDATA_TTLN").
+-include("snmp_verbosity.hrl").
+
+-behaviour(snmpa_mib_data).
+
+-define(MIB_DATA, snmpa_mib_data).
+-define(MIB_NODE, snmpa_mib_node).
+-define(MIB_TREE, snmpa_mib_tree).
+-define(DUMMY_TREE_GENERATION, 1).
+-define(DEFAULT_TREE, {tree,{undefined_node},internal}).
+
+
+%%%-----------------------------------------------------------------
+%%% Table of contents
+%%% =================
+%%% 1. Interface
+%%% 2. Implementation of tree access
+%%% 3. Tree building functions
+%%% 4. Tree merging
+%%% 5. Tree deletion routines
+%%% 6. Functions for subagent handling
+%%% 7. Misc functions
+%%%-----------------------------------------------------------------
+
+
+%%----------------------------------------------------------------------
+%% data_db is an database containing loaded mibs as:
+%% {MibName = atom(), Symbolic = ?, FullFileName = string()}
+%% it is either ets or mnesia
+%% tree_db is a database containing _one_ record with the tree!
+%% (the reason for this is part to get replication and part out of convenience)
+%% ref_tree is the root node, without any subagent.
+%% tree is the root node (same as ref_tree but with the subagents added).
+%% subagents is a list of {SAPid, Oid}
+%%----------------------------------------------------------------------
+-record(mib_data, {mib_db, % table of #mib_info
+ node_db, % table of #node_info
+ tree_db, % table of #tree
+ tree, % The actual tree
+ subagents = []}).
+
+-record(mib_info, {name, symbolic, file_name}).
+-record(node_info, {oid, mib_name, me}).
+
+
+%% API
+-export([new/0, new/1, sync/1, close/1,
+ load_mib/4, unload_mib/4, which_mibs/1, whereis_mib/2,
+ info/1, info/2,
+ dump/1, dump/2,
+ backup/2,
+ lookup/2, next/3, which_mib/2,
+ register_subagent/3, unregister_subagent/2]).
+
+%% Internal exports
+-export([code_change/2]).
+
+
+%%-----------------------------------------------------------------
+%% A tree is represented as a N-tuple, where each element is a
+%% node. A node is:
+%% 1) {tree, Tree, Info} where Info can be {table, Id}, {table_entry, Id}
+%% or perhaps 'internal'
+%% 2) undefined_node (memory optimization (instead of {node, undefined}))
+%% 3) {node, Info} where Info can be {subagent, Pid}, {variable, Id},
+%% {table_column, Id}
+%% Id is {MibName, MibEntry}
+%% The over all root is represented as {tree, Tree, internal}.
+%%
+%% tree() = {tree, nodes(), tree_info()}
+%% nodes() = [tree() | node() | undefined_node]
+%% node() = {node, node_info()}
+%% tree_info() = {table, Id} | {table_entry, Id} | internal
+%% node_info() = {subagent, Pid} | {variable, Id} | {table_colum, Id}
+%%-----------------------------------------------------------------
+
+-type tree_generation() :: non_neg_integer().
+-type tree() :: #tree{}.
+-type tree_nodes() :: [tree_node()].
+-type tree_node() :: tree() |
+ tree_node_elem() |
+ tree_node_empty().
+-type tree_node_elem() :: {node, tree_node_info()}.
+-type tree_node_info() :: {subagent, Pid :: pid()} |
+ {variable, Id :: non_neg_integer()} |
+ {table_column, Id :: non_neg_integer()}.
+-type tree_node_empty() :: {undefined_node, N :: pos_integer()}.
+-type tree_info() :: {table, Id :: non_neg_integer()} |
+ {table_entry, Id :: non_neg_integer()} |
+ internal.
+
+
+%% This record is what is stored in the database. The 'tree' part
+%% is described above...
+-record(mtree,
+ {
+ generation = ?DUMMY_TREE_GENERATION :: tree_generation(),
+ root = ?DEFAULT_TREE :: tree()
+ }).
+
+-record(tree,
+ {
+ %% The number of nodes is *not* actually the length of the
+ %% nodes list. Since the undefined-node(s) can be collapsed
+ %% into {undefined_node, N} we need to keep track of the
+ %% actual size some other way (so that we dont have the
+ %% traverse the nodes every time we want to check an index).
+ num_nodes :: non_neg_integer(),
+ nodes :: tree_nodes(),
+ tree_info :: tree_info()
+ }).
+
+
+
+
+%%%======================================================================
+%%% 1. Interface
+%%%======================================================================
+
+%%-----------------------------------------------------------------
+%% Func: new/0, new/1
+%% Returns: A representation of mib data.
+%%-----------------------------------------------------------------
+new() ->
+ new(ets).
+
+%% Where -> A list of nodes where the tables will be created
+new(Storage) ->
+ %% First we must check if there is already something to read
+ %% If a database already exists, then the tree structure has to be read
+ ?vtrace("open (mib) database",[]),
+ MibDb = snmpa_general_db:open(Storage, ?MIB_DATA,
+ mib_info,
+ record_info(fields, mib_info), set),
+ ?vtrace("open (mib) node database",[]),
+ NodeDb = snmpa_general_db:open(Storage, ?MIB_NODE,
+ node_info,
+ record_info(fields, node_info), set),
+ ?vtrace("open (mib) tree database",[]),
+ TreeDb = snmpa_general_db:open(Storage, ?MIB_TREE,
+ tree,
+ record_info(fields, mtree), set),
+ MTree =
+ case snmpa_general_db:read(TreeDb, ?DUMMY_TREE_GENERATION) of
+ false ->
+ T = #mtree{},
+ snmpa_general_db:write(TreeDb, T),
+ T;
+ {value, T} ->
+ T
+ end,
+ install_mibs(MibDb, NodeDb),
+ #mib_data{mib_db = MibDb,
+ node_db = NodeDb,
+ tree_db = TreeDb,
+ mtree = MTree}.
+
+
+%%----------------------------------------------------------------------
+%% Returns: new mib data | {error, Reason}
+%%----------------------------------------------------------------------
+load_mib(MibData,FileName,MeOverride,TeOverride)
+ when is_record(MibData,mib_data) andalso is_list(FileName) ->
+ ?vlog("load mib file: ~p",[FileName]),
+ ActualFileName = filename:rootname(FileName, ".bin") ++ ".bin",
+ MibName = list_to_atom(filename:basename(FileName, ".bin")),
+ (catch do_load_mib(MibData, ActualFileName, MibName,
+ MeOverride, TeOverride)).
+
+do_load_mib(MibData, ActualFileName, MibName, MeOverride, TeOverride) ->
+ ?vtrace("do_load_mib -> entry with"
+ "~n ActualFileName: ~s"
+ "~n MibName: ~p",[ActualFileName, MibName]),
+ #mib_data{mib_db = MibDb,
+ node_db = NodeDb,
+ %% tree_db = TreeDb,
+ tree = Tree} = MibData,
+ verify_not_loaded(MibDb, MibName),
+ ?vtrace("do_load_mib -> already loaded mibs:"
+ "~n ~p",[loaded(MibDb)]),
+ Mib = do_read_mib(ActualFileName),
+ ?vtrace("do_load_mib -> read mib ~s",[Mib#mib.name]),
+ NonInternalMes =
+ lists:filter(fun(ME) -> maybe_drop_me(ME) end, Mib#mib.mes),
+ OldRoot = Tree#tree.root,
+ T = build_tree(NonInternalMes, MibName),
+ ?d("load_mib -> "
+ "~n OldRoot: ~p"
+ "~n T: ~p", [OldRoot, T]),
+ case (catch merge_nodes(T, OldRoot)) of
+ {error_merge_nodes, Node1, Node2} ->
+ ?vlog("error merging nodes:"
+ "~n~p~nand~n~p", [Node1,Node2]),
+ {error, oid_conflict};
+ NewRoot when is_tuple(NewRoot) andalso (element(1,NewRoot) =:= tree) ->
+ ?d("load_mib -> "
+ "~n NewRoot: ~p", [NewRoot]),
+ Symbolic = not lists:member(no_symbolic_info, Mib#mib.misc),
+ case (catch check_notif_and_mes(TeOverride, MeOverride, Symbolic,
+ Mib#mib.traps, NonInternalMes)) of
+ true ->
+ install_mes(NodeDb, MibName, NonInternalMes),
+ install_mib(MibDb, Symbolic, Mib,
+ MibName, ActualFileName, NonInternalMes),
+ ?vtrace("installed mib ~s", [Mib#mib.name]),
+ Tree2 = Tree#tree{root = NewRoot},
+ %% snmpa_general_db:write(TreeDb, Tree2), %% Store later?
+ {ok, MibData#mib_data{tree = Tree2}};
+ Else ->
+ Else
+ end
+ end.
+
+
+verify_not_loaded(Db, Name) ->
+ case snmpa_general_db:read(Db, Name) of
+ {value, #mib_info{name = Name}} ->
+ throw({error, 'already loaded'});
+ false ->
+ ok
+ end.
+
+do_read_mib(ActualFileName) ->
+ case snmp_misc:read_mib(ActualFileName) of
+ {error, Reason} ->
+ ?vlog("Failed reading mib file ~p with reason: ~p",
+ [ActualFileName,Reason]),
+ throw({error, Reason});
+ {ok, Mib} ->
+ Mib
+ end.
+
+%% The Tree DB is handled in a special way since it can be very large.
+sync(#mib_data{mib_db = M,
+ node_db = N,
+ tree_db = T, tree = Tree, subagents = []}) ->
+ snmpa_general_db:sync(M),
+ snmpa_general_db:sync(N),
+ snmpa_general_db:write(T, Tree),
+ snmpa_general_db:sync(T);
+sync(#mib_data{mib_db = M,
+ node_db = N,
+ tree_db = T, tree = Tree, subagents = SAs}) ->
+
+ snmpa_general_db:sync(M),
+ snmpa_general_db:sync(N),
+
+ %% Ouch. Since the subagent info is dynamic we do not
+ %% want to store the tree containing subagent info. So, we
+ %% have to create a tmp tree without those and store it.
+
+ case delete_subagents(Tree, SAs) of
+ {ok, TreeWithoutSAs} ->
+ snmpa_general_db:write(T, TreeWithoutSAs),
+ snmpa_general_db:sync(T);
+ Error ->
+ Error
+ end.
+
+delete_subagents(Tree, []) ->
+ {ok, Tree};
+delete_subagents(Tree0, [{_, Oid}|SAs]) ->
+ case (catch delete_subagent(Tree0, Oid)) of
+ {tree, _Tree, _Info} = Tree1 ->
+ delete_subagents(Tree1, SAs);
+ _Error ->
+ {error, {'invalid oid', Oid}}
+ end.
+
+%%----------------------------------------------------------------------
+%% (OTP-3601)
+%%----------------------------------------------------------------------
+check_notif_and_mes(TeOverride,MeOverride,Symbolic,Traps,MEs) ->
+ ?vtrace("check notifications and mib entries",[]),
+ check_notifications(TeOverride,Symbolic,Traps),
+ check_mes(MeOverride,MEs).
+
+check_notifications(true, _Symbolic, _Traps) ->
+ ?vtrace("trapentry override = true => skip check",[]),
+ true;
+check_notifications(_, Symbolic, Traps) ->
+ check_notifications(Symbolic, Traps).
+
+check_notifications(true, Traps) ->
+ check_notifications(Traps);
+check_notifications(_, _) -> true.
+
+check_notifications([]) -> true;
+check_notifications([#trap{trapname = Key} = Trap | Traps]) ->
+ ?vtrace("check notification [trap] with Key: ~p",[Key]),
+ case snmpa_symbolic_store:get_notification(Key) of
+ {value, Trap} -> check_notifications(Traps);
+ {value, _} -> throw({error, {'trap already defined', Key}});
+ undefined -> check_notifications(Traps)
+ end;
+check_notifications([#notification{trapname = Key} = Notif | Traps]) ->
+ ?vtrace("check notification [notification] with Key: ~p",[Key]),
+ case snmpa_symbolic_store:get_notification(Key) of
+ {value, Notif} ->
+ check_notifications(Traps);
+ {value, _} ->
+ throw({error, {'notification already defined', Key}});
+ undefined ->
+ check_notifications(Traps)
+ end;
+check_notifications([Crap | Traps]) ->
+ ?vlog("skipped check of: ~n~p",[Crap]),
+ check_notifications(Traps).
+
+check_mes(true,_) ->
+ ?vtrace("mibentry override = true => skip check",[]),
+ true;
+check_mes(_,MEs) ->
+ check_mes(MEs).
+
+check_mes([]) -> true;
+check_mes([#me{aliasname = Name, oid = Oid1} | MEs]) ->
+ ?vtrace("check mib entries with aliasname: ~p",[Name]),
+ case snmpa_symbolic_store:aliasname_to_oid(Name) of
+ {value, Oid1} ->
+ check_mes(MEs);
+ {value, Oid2} ->
+ ?vinfo("~n expecting '~p'~n but found '~p'",[Oid1, Oid2]),
+ throw({error, {'mibentry already defined', Name}});
+ false ->
+ check_mes(MEs)
+ end;
+check_mes([Crap | MEs]) ->
+ ?vlog("skipped check of: ~n~p",[Crap]),
+ check_mes(MEs).
+
+
+
+%%----------------------------------------------------------------------
+%% Returns: new mib data | {error, Reason}
+%%----------------------------------------------------------------------
+unload_mib(MibData, FileName, _, _) when is_list(FileName) ->
+ MibName = list_to_atom(filename:basename(FileName, ".bin")),
+ (catch do_unload_mib(MibData, MibName)).
+
+do_unload_mib(MibData, MibName) ->
+ ?vtrace("do_unload_mib -> entry with"
+ "~n MibName: ~p", [MibName]),
+ #mib_data{mib_db = MibDb,
+ node_db = NodeDb,
+ %% tree_db = TreeDb,
+ tree = Tree} = MibData,
+ #mib_info{symbolic = Symbolic} = verify_loaded(MibDb, MibName),
+ NewRoot = delete_mib_from_tree(MibName, Tree#tree.root),
+ MEs = uninstall_mes(NodeDb, MibName),
+ uninstall_mib(MibDb, Symbolic, MibName, MEs),
+ NewMibData = MibData#mib_data{tree = Tree#tree{root = NewRoot}},
+ {ok, NewMibData}.
+
+verify_loaded(Db, Name) ->
+ case snmpa_general_db:read(Db, Name) of
+ {value, MibInfo} ->
+ MibInfo;
+ false ->
+ throw({error, 'not loaded'})
+ end.
+
+
+close(#mib_data{mib_db = MibDb, node_db = NodeDb, tree_db = TreeDb}) ->
+ snmpa_general_db:close(MibDb),
+ snmpa_general_db:close(NodeDb),
+ snmpa_general_db:close(TreeDb),
+ ok.
+
+register_subagent(#mib_data{tree = T} = MibData, Oid, Pid) ->
+ case insert_subagent(Oid, T#tree.root) of
+ {error, Reason} ->
+ {error, Reason};
+ NewRootTree ->
+ SAs = [{Pid, Oid} | MibData#mib_data.subagents],
+ T2 = T#tree{root = NewRootTree},
+ MibData#mib_data{tree = T2, subagents = SAs}
+ end.
+
+
+%%----------------------------------------------------------------------
+%% Purpose: Get a list of all loaded mibs
+%% Returns: [{Name, File}]
+%%----------------------------------------------------------------------
+
+which_mibs(#mib_data{mib_db = Db}) ->
+ Mibs = snmpa_general_db:tab2list(Db),
+ [{Name, File} || #mib_info{name = Name, file_name = File} <- Mibs].
+
+
+%%----------------------------------------------------------------------
+%% Purpose: Get a list of all loaded mibs
+%% Returns: [{Name, File}]
+%%----------------------------------------------------------------------
+
+whereis_mib(#mib_data{mib_db = Db}, Name) ->
+ case snmpa_general_db:read(Db, Name) of
+ {value, #mib_info{file_name = File}} ->
+ {ok, File};
+ false ->
+ {error, not_found}
+ end.
+
+
+%%----------------------------------------------------------------------
+%% Purpose: Deletes SA with Pid from all subtrees it handles.
+%% Returns: NewMibData.
+%%----------------------------------------------------------------------
+unregister_subagent(MibData, Pid) when is_pid(Pid) ->
+ SAs = MibData#mib_data.subagents,
+ case lists:keysearch(Pid, 1, SAs) of
+ false -> MibData;
+ {value, {Pid, Oid}} ->
+ % we should never get an error since Oid is found in MibData.
+ {ok, NewMibData, _DeletedSA} = unregister_subagent(MibData, Oid),
+ % continue if the same Pid handles other mib subtrees.
+ unregister_subagent(NewMibData, Pid)
+ end;
+
+%%----------------------------------------------------------------------
+%% Purpose: Deletes one unique subagent.
+%% Returns: {error, Reason} | {ok, NewMibData, DeletedSubagentPid}
+%%----------------------------------------------------------------------
+unregister_subagent(#mib_data{tree = T} = MibData, Oid) when is_list(Oid) ->
+ case catch delete_subagent(T#tree.root, Oid) of
+ {tree, Tree, Info} ->
+ OldSAs = MibData#mib_data.subagents,
+ {value, {Pid, _Oid}} = lists:keysearch(Oid, 2, OldSAs),
+ SAs = lists:keydelete(Oid, 2, OldSAs),
+ T2 = T#tree{root = {tree, Tree, Info}},
+ {ok,
+ MibData#mib_data{tree = T2, subagents = SAs},
+ Pid};
+ _ ->
+ {error, {'invalid oid', Oid}}
+ end.
+
+%%----------------------------------------------------------------------
+%% Purpose: To inpect memory usage, loaded mibs, registered subagents
+%%----------------------------------------------------------------------
+info(MibData) ->
+ ?vtrace("retrieve info",[]),
+ #mib_data{mib_db = MibDb, node_db = NodeDb, tree_db = TreeDb,
+ tree = Tree, subagents = SAs} = MibData,
+ LoadedMibs = old_format(snmpa_general_db:tab2list(MibDb)),
+ TreeSize = snmp_misc:mem_size(Tree),
+ {memory, ProcSize} = erlang:process_info(self(),memory),
+ MibDbSize = snmpa_general_db:info(MibDb, memory),
+ NodeDbSize = snmpa_general_db:info(NodeDb, memory),
+ TreeDbSize = snmpa_general_db:info(TreeDb, memory),
+ [{loaded_mibs, LoadedMibs}, {subagents, SAs}, {tree_size_bytes, TreeSize},
+ {process_memory, ProcSize},
+ {db_memory, [{mib,MibDbSize},{node,NodeDbSize},{tree,TreeDbSize}]}].
+
+info(#mib_data{mib_db = MibDb}, loaded_mibs) ->
+ Mibs = snmpa_general_db:tab2list(MibDb),
+ [filename:rootname(FN, ".bin") || #mib_info{file_name = FN} <- Mibs];
+info(#mib_data{tree = Tree}, tree_size_bytes) ->
+ snmp_misc:mem_size(Tree);
+info(_, process_memory) ->
+ {memory, ProcSize} = erlang:process_info(self(),memory),
+ ProcSize;
+info(#mib_data{mib_db = MibDb, node_db = NodeDb, tree_db = TreeDb},
+ db_memory) ->
+ MibDbSize = snmpa_general_db:info(MibDb, memory),
+ NodeDbSize = snmpa_general_db:info(NodeDb, memory),
+ TreeDbSize = snmpa_general_db:info(TreeDb, memory),
+ [{mib,MibDbSize},{node,NodeDbSize},{tree,TreeDbSize}];
+info(#mib_data{subagents = SAs}, subagents) ->
+ SAs.
+
+old_format(LoadedMibs) ->
+ ?vtrace("convert mib info to old format",[]),
+ [{N,S,F} || #mib_info{name=N,symbolic=S,file_name=F} <- LoadedMibs].
+
+
+%%----------------------------------------------------------------------
+%% A total dump for debugging.
+%%----------------------------------------------------------------------
+dump(#mib_data{mib_db = MibDb, node_db = NodeDb, tree = Tree}) ->
+ (catch io:format("MIB-tables:~n~p~n~n",
+ [snmpa_general_db:tab2list(MibDb)])),
+ (catch io:format("MIB-entries:~n~p~n~n",
+ [snmpa_general_db:tab2list(NodeDb)])),
+ (catch io:format("Tree:~n~p~n", [Tree])), % good luck reading it!
+ ok.
+
+dump(#mib_data{mib_db = MibDb, node_db = NodeDb, tree = Tree}, File) ->
+ case file:open(File,[write]) of
+ {ok, Fd} ->
+ io:format(Fd,"~s~n",
+ [snmp:date_and_time_to_string(snmp:date_and_time())]),
+ (catch io:format(Fd,"MIB-tables:~n~p~n~n",
+ [snmpa_general_db:tab2list(MibDb)])),
+ (catch io:format(Fd, "MIB-entries:~n~p~n~n",
+ [snmpa_general_db:tab2list(NodeDb)])),
+ io:format(Fd,"Tree:~n~p~n", [Tree]), % good luck reading it!
+ file:close(Fd),
+ ok;
+ {error,Reason} ->
+ ?vinfo("~n Failed opening file '~s' for reason ~p",
+ [File,Reason]),
+ {error,Reason}
+ end.
+
+
+backup(#mib_data{mib_db = M, node_db = N, tree_db = T}, BackupDir) ->
+ MRes = snmpa_general_db:backup(M, BackupDir),
+ NRes = snmpa_general_db:backup(N, BackupDir),
+ TRes = snmpa_general_db:backup(T, BackupDir),
+ handle_backup_res([{mib_db, MRes}, {node_db, NRes}, {tree_db, TRes}]).
+
+handle_backup_res(Res) ->
+ handle_backup_res(Res, []).
+
+handle_backup_res([], []) ->
+ ok;
+handle_backup_res([], Err) ->
+ {error, lists:reverse(Err)};
+handle_backup_res([{_, ok}|Res], Err) ->
+ handle_backup_res(Res, Err);
+handle_backup_res([{Tag, {error, Reason}}|Res], Err) ->
+ handle_backup_res(Res, [{Tag, Reason}|Err]);
+handle_backup_res([{Tag, Error}|Res], Err) ->
+ handle_backup_res(Res, [{Tag, Error}|Err]).
+
+
+%%%======================================================================
+%%% 2. Implementation of tree access
+%%% lookup and next.
+%%%======================================================================
+
+
+which_mib(#mib_data{tree = T} = D, Oid) ->
+ ?vtrace("which_mib -> entry with"
+ "~n Oid: ~p",[Oid]),
+ case (catch find_node(D, T#tree.root, Oid, [])) of
+ {variable, _ME, Mib} ->
+ ?vtrace("which_mib -> variable:"
+ "~n Mib: ~p", [Mib]),
+ {ok, Mib};
+ {table, _EntryME, _, Mib} ->
+ ?vtrace("which_mib -> table:"
+ "~n Mib: ~p", [Mib]),
+ {ok, Mib};
+ {subagent, SubAgentPid, _SANextOid} ->
+ ?vtrace("which_mib -> subagent:"
+ "~n SubAgentPid: ~p", [SubAgentPid]),
+ {error, {subagent, SubAgentPid}};
+ {false, ErrorCode} ->
+ ?vtrace("which_mib -> false:"
+ "~n ErrorCode: ~p",[ErrorCode]),
+ {error, ErrorCode};
+ false ->
+ ?vtrace("which_mib -> false",[]),
+ {error, noSuchObject};
+ {'EXIT', R} ->
+ ?vtrace("which_mib -> exit:"
+ "~n R: ~p",[R]),
+ {error, noSuchObject}
+ end.
+
+
+%%-----------------------------------------------------------------
+%% Func: lookup/2
+%% Purpose: Finds the mib entry corresponding to the Oid. If it is a
+%% variable, the Oid must be <Oid for var>.0 and if it is
+%% a table, Oid must be <table>.<entry>.<col>.<any>
+%% Returns: {variable, MibEntry} |
+%% {table_column, MibEntry, TableEntryOid} |
+%% {subagent, SubAgentPid, SAOid} |
+%% {false, Reason}
+%%-----------------------------------------------------------------
+lookup(#mib_data{tree = T} = D, Oid) ->
+ ?vtrace("lookup -> entry with"
+ "~n Oid: ~p",[Oid]),
+ case (catch find_node(D, T#tree.root, Oid, [])) of
+ {variable, ME, _Mib} when is_record(ME, me) ->
+ ?vtrace("lookup -> variable:"
+ "~n ME: ~p",[ME]),
+ {variable, ME};
+ {table, EntryME, {ColME, TableEntryOid}, _Mib} ->
+ ?vtrace("lookup -> table:"
+ "~n EntryME: ~p"
+ "~n ColME: ~p"
+ "~n RevTableEntryOid: ~p",
+ [EntryME, ColME, TableEntryOid]),
+ MFA = EntryME#me.mfa,
+ RetME = ColME#me{mfa = MFA},
+ {table_column, RetME, TableEntryOid};
+ {subagent, SubAgentPid, SANextOid} ->
+ ?vtrace("lookup -> subagent:"
+ "~n SubAgentPid: ~p"
+ "~n SANextOid: ~p", [SubAgentPid, SANextOid]),
+ {subagent, SubAgentPid, SANextOid};
+ {false, ErrorCode} ->
+ ?vtrace("lookup -> false:"
+ "~n ErrorCode: ~p",[ErrorCode]),
+ {false, ErrorCode};
+ false ->
+ ?vtrace("lookup -> false",[]),
+ {false, noSuchObject};
+ {'EXIT', R} ->
+ ?vtrace("lookup -> exit:"
+ "~n R: ~p",[R]),
+ {false, noSuchObject}
+ end.
+
+
+find_node(D, {tree, Tree, {table, _}}, RestOfOid, RevOid) ->
+ ?vtrace("find_node(tree,table) -> entry with"
+ "~n RestOfOid: ~p"
+ "~n RevOid: ~p",[RestOfOid, RevOid]),
+ find_node(D, {tree, Tree, internal}, RestOfOid, RevOid);
+find_node(D, {tree, Tree, {table_entry, _}}, RestOfOid, RevOid) ->
+ ?vtrace("find_node(tree,table_entry) -> entry with"
+ "~n RestOfOid: ~p"
+ "~n RevOid: ~p",[RestOfOid, RevOid]),
+ #mib_data{node_db = Db} = D,
+ Oid = lists:reverse(RevOid),
+ case snmpa_general_db:read(Db, Oid) of
+ {value, #node_info{me = ME, mib_name = Mib}} ->
+ case find_node(D, {tree, Tree, internal}, RestOfOid, RevOid) of
+ {false, ErrorCode} -> {false, ErrorCode};
+ Val -> {table, ME, Val, Mib}
+ end;
+ false ->
+ ?vinfo("find_node -> could not find table_entry ME with"
+ "~n RevOid: ~p"
+ "~n when"
+ "~n RestOfOid: ~p",
+ [RevOid, RestOfOid]),
+ false
+ end;
+find_node(D, {tree, Tree, _Internal}, [Int | RestOfOid], RevOid) ->
+ ?vtrace("find_node(tree) -> entry with"
+ "~n Int: ~p"
+ "~n RestOfOid: ~p"
+ "~n RevOid: ~p",[Int, RestOfOid, RevOid]),
+ find_node(D, element(Int+1, Tree), RestOfOid, [Int | RevOid]);
+find_node(D, {node, {table_column, _}}, RestOfOid, [ColInt | RevOid]) ->
+ ?vtrace("find_node(tree,table_column) -> entry with"
+ "~n RestOfOid: ~p"
+ "~n ColInt: ~p"
+ "~n RevOid: ~p",[RestOfOid, ColInt, RevOid]),
+ #mib_data{node_db = Db} = D,
+ Oid = lists:reverse([ColInt | RevOid]),
+ case snmpa_general_db:read(Db, Oid) of
+ {value, #node_info{me = ME}} ->
+ {ME, lists:reverse(RevOid)};
+ false ->
+ X = snmpa_general_db:read(Db, lists:reverse([ColInt | RevOid])),
+ ?vinfo("find_node -> could not find table_column ME with"
+ "~n RevOid: ~p"
+ "~n trying [~p|~p]"
+ "~n X: ~p",
+ [RevOid, [ColInt | RevOid], X]),
+ false
+ end;
+find_node(D, {node, {variable, _MibName}}, [0], RevOid) ->
+ ?vtrace("find_node(tree,variable,[0]) -> entry with"
+ "~n RevOid: ~p",[RevOid]),
+ #mib_data{node_db = Db} = D,
+ Oid = lists:reverse(RevOid),
+ %% {value, #node_info{me = ME}} = snmpa_general_db:read(Db, Oid),
+ case snmpa_general_db:read(Db, Oid) of
+ {value, #node_info{me = ME, mib_name = Mib}} ->
+ {variable, ME, Mib};
+ false ->
+ ?vinfo("find_node -> could not find variable ME with"
+ "~n RevOid: ~p", [RevOid]),
+ false
+ end;
+find_node(_D, {node, {variable, _MibName}}, [], _RevOid) ->
+ ?vtrace("find_node(tree,variable,[]) -> entry",[]),
+ {false, noSuchObject};
+find_node(_D, {node, {variable, _MibName}}, _, _RevOid) ->
+ ?vtrace("find_node(tree,variable) -> entry",[]),
+ {false, noSuchInstance};
+find_node(D, {node, subagent}, _RestOfOid, SARevOid) ->
+ ?vtrace("find_node(tree,subagent) -> entry with"
+ "~n SARevOid: ~p",[SARevOid]),
+ #mib_data{subagents = SAs} = D,
+ SAOid = lists:reverse(SARevOid),
+ case lists:keysearch(SAOid, 2, SAs) of
+ {value, {SubAgentPid, SAOid}} ->
+ {subagent, SubAgentPid, SAOid};
+ false ->
+ ?vinfo("find_node -> could not find subagent with"
+ "~n SAOid: ~p"
+ "~n SAs: ~p", [SAOid, SAs]),
+ false
+ end;
+find_node(_D, Node, _RestOfOid, _RevOid) ->
+ ?vtrace("find_node -> failed:~n~p",[Node]),
+ {false, noSuchObject}.
+
+
+%%-----------------------------------------------------------------
+%% Func: next/3
+%% Purpose: Finds the lexicographically next oid.
+%% Returns: endOfMibView |
+%% {subagent, SubAgentPid, SAOid} |
+%% {variable, MibEntry, VarOid} |
+%% {table, TableOid, TableRestOid, MibEntry}
+%% If a variable is returnes, it is in the MibView.
+%% If a table or subagent is returned, it *may* be in the MibView.
+%%-----------------------------------------------------------------
+next(#mib_data{tree = T} = D, Oid, MibView) ->
+ case catch next_node(D, T#tree.root, Oid, [], MibView) of
+ false -> endOfMibView;
+ Else -> Else
+ end.
+
+%%-----------------------------------------------------------------
+%% This function is used as long as we have any Oid left. Take
+%% one integer at a time from the Oid, and traverse the tree
+%% accordingly. When the Oid is empty, call find_next.
+%% Returns: {subagent, SubAgentPid, SAOid} |
+%% false |
+%% {variable, MibEntry, VarOid} |
+%% {table, TableOid, TableRestOid, MibEntry}
+%%-----------------------------------------------------------------
+next_node(_D, undefined_node, _Oid, _RevOidSoFar, _MibView) ->
+ ?vtrace("next_node(undefined_node) -> entry", []),
+ false;
+
+next_node(_D, {tree, Tree, {table_entry, _Id}}, [Int | _Oid],
+ _RevOidSoFar, _MibView)
+ when Int+1 > size(Tree) ->
+ ?vtrace("next_node(tree,table_entry) -> entry when not found whith"
+ "~n Int: ~p"
+ "~n size(Tree): ~p", [Int, size(Tree)]),
+ false;
+next_node(D, {tree, Tree, {table_entry, _MibName}},
+ Oid, RevOidSoFar, MibView) ->
+ ?vtrace("next_node(tree,table_entry) -> entry when"
+ "~n size(Tree): ~p"
+ "~n Oid: ~p"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p", [size(Tree), Oid, RevOidSoFar, MibView]),
+ OidSoFar = lists:reverse(RevOidSoFar),
+ case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+ true ->
+ ?vdebug("next_node(tree,table_entry) -> not in mib view",[]),
+ false;
+ _ ->
+ #mib_data{node_db = Db} = D,
+ case snmpa_general_db:read(Db, OidSoFar) of
+ false ->
+ ?vinfo("next_node -> could not find table_entry with"
+ "~n OidSoFar: ~p", [OidSoFar]),
+ false;
+ {value, #node_info{me = ME}} ->
+ ?vtrace("next_node(tree,table_entry) -> found: ~n ~p",
+ [ME]),
+ {table, OidSoFar, Oid, ME}
+ end
+ end;
+
+next_node(D, {tree, Tree, _Info}, [Int | RestOfOid], RevOidSoFar, MibView)
+ when (Int < size(Tree)) andalso (Int >= 0) ->
+ ?vtrace("next_node(tree) -> entry when"
+ "~n size(Tree): ~p"
+ "~n Int: ~p"
+ "~n RestOfOid: ~p"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p",
+ [size(Tree), Int, RestOfOid, RevOidSoFar, MibView]),
+ case next_node(D, element(Int+1,Tree),
+ RestOfOid, [Int|RevOidSoFar], MibView) of
+ false ->
+ find_next(D, {tree, Tree, _Info}, Int+1, RevOidSoFar, MibView);
+ Else ->
+ Else
+ end;
+%% no solution
+next_node(D, {tree, Tree, _Info}, [], RevOidSoFar, MibView) ->
+ ?vtrace("next_node(tree,[]) -> entry when"
+ "~n size(Tree): ~p"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p",
+ [size(Tree), RevOidSoFar, MibView]),
+ find_next(D, {tree, Tree, _Info}, 0, RevOidSoFar, MibView);
+next_node(_D, {tree, Tree, _Info}, _RestOfOid, _RevOidSoFar, _MibView) ->
+ ?vtrace("next_node(tree) -> entry when"
+ "~n size(Tree): ~p", [size(Tree)]),
+ false;
+
+next_node(D, {node, subagent}, Oid, RevOidSoFar, MibView) ->
+ ?vtrace("next_node(node,subagent) -> entry when"
+ "~n Oid: ~p"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p",
+ [Oid, RevOidSoFar, MibView]),
+ OidSoFar = lists:reverse(RevOidSoFar),
+ case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+ true ->
+ false;
+ _ ->
+ #mib_data{subagents = SAs} = D,
+ case lists:keysearch(OidSoFar, 2, SAs) of
+ {value, {SubAgentPid, OidSoFar}} ->
+ {subagent, SubAgentPid, OidSoFar};
+ _ ->
+ ?vinfo("next_node -> could not find subagent with"
+ "~n OidSoFar: ~p"
+ "~n SAs: ~p", [OidSoFar, SAs]),
+ false
+ end
+ end;
+
+next_node(D, {node, {variable, _MibName}}, [], RevOidSoFar, MibView) ->
+ ?vtrace("next_node(node,variable,[]) -> entry when"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p",
+ [RevOidSoFar, MibView]),
+ OidSoFar = lists:reverse([0 | RevOidSoFar]),
+ case snmpa_acm:validate_mib_view(OidSoFar, MibView) of
+ true ->
+ #mib_data{node_db = Db} = D,
+ case snmpa_general_db:read(Db, lists:reverse(RevOidSoFar)) of
+ false ->
+ ?vinfo("next_node -> could not find variable with"
+ "~n RevOidSoFar: ~p", [RevOidSoFar]),
+ false;
+ {value, #node_info{me = ME}} ->
+ {variable, ME, OidSoFar}
+ end;
+ _ ->
+ false
+ end;
+
+next_node(_D, {node, {variable, _MibName}}, _Oid, _RevOidSoFar, _MibView) ->
+ ?vtrace("next_node(node,variable) -> entry", []),
+ false.
+
+%%-----------------------------------------------------------------
+%% This function is used to find the first leaf from where we
+%% are.
+%% Returns: {subagent, SubAgentPid, SAOid} |
+%% false |
+%% {variable, MibEntry, VarOid} |
+%% {table, TableOid, TableRestOid, MibEntry}
+%% PRE: This function must always be called with a {internal, Tree}
+%% node.
+%%-----------------------------------------------------------------
+find_next(D, {tree, Tree, internal}, Idx, RevOidSoFar, MibView)
+ when Idx < size(Tree) ->
+ case find_next(D, element(Idx+1, Tree), 0, [Idx| RevOidSoFar], MibView) of
+ false ->
+ find_next(D, {tree, Tree, internal}, Idx+1, RevOidSoFar, MibView);
+ Other ->
+ Other
+ end;
+find_next(_D, {tree, _Tree, internal}, _Idx, _RevOidSoFar, _MibView) ->
+ false;
+find_next(_D, undefined_node, _Idx, _RevOidSoFar, _MibView) ->
+ false;
+find_next(D, {tree, Tree, {table, _MibName}}, Idx, RevOidSoFar, MibView) ->
+ find_next(D, {tree, Tree, internal}, Idx, RevOidSoFar, MibView);
+find_next(D, {tree, _Tree, {table_entry, _MibName}}, _Index,
+ RevOidSoFar, MibView) ->
+ OidSoFar = lists:reverse(RevOidSoFar),
+ case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+ true ->
+ false;
+ _ ->
+ #mib_data{node_db = Db} = D,
+ case snmpa_general_db:read(Db, OidSoFar) of
+ false ->
+ ?vinfo("find_next -> could not find table_entry ME with"
+ "~n OidSoFar: ~p", [OidSoFar]),
+ false;
+ {value, #node_info{me = ME}} ->
+ {table, OidSoFar, [], ME}
+ end
+ end;
+find_next(D, {node, {variable, _MibName}}, _Idx, RevOidSoFar, MibView) ->
+ OidSoFar = lists:reverse([0 | RevOidSoFar]),
+ case snmpa_acm:validate_mib_view(OidSoFar, MibView) of
+ true ->
+ #mib_data{node_db = Db} = D,
+ case snmpa_general_db:read(Db, lists:reverse(RevOidSoFar)) of
+ false ->
+ ?vinfo("find_next -> could not find variable with"
+ "~n RevOidSoFar: ~p", [RevOidSoFar]),
+ false;
+ {value, #node_info{me = ME}} ->
+ {variable, ME, OidSoFar}
+ end;
+ _ ->
+ false
+ end;
+find_next(D, {node, subagent}, _Idx, RevOidSoFar, MibView) ->
+ OidSoFar = lists:reverse(RevOidSoFar),
+ case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+ true ->
+ false;
+ _ ->
+ #mib_data{subagents = SAs} = D,
+ case lists:keysearch(OidSoFar, 2, SAs) of
+ {value, {SubAgentPid, OidSoFar}} ->
+ {subagent, SubAgentPid, OidSoFar};
+ false ->
+ ?vinfo("find_node -> could not find subagent with"
+ "~n OidSoFar: ~p"
+ "~n SAs: ~p", [OidSoFar, SAs]),
+ false
+ end
+ end.
+
+%%%======================================================================
+%%% 3. Tree building functions
+%%% Used when loading mibs.
+%%%======================================================================
+
+build_tree(Mes, MibName) ->
+ ?d("build_tree -> "
+ "~n Mes: ~p", [Mes]),
+ {ListTree, []} = build_subtree([], Mes, MibName),
+ {tree, convert_tree(ListTree), internal}.
+
+%%----------------------------------------------------------------------
+%% Purpose: Builds the tree where all oids have prefix equal to LevelPrefix.
+%% Returns: {Tree, RestMes}
+%% RestMes are Mes that should not be in this subtree.
+%% The Tree is a temporary and simplified data structure that is easy to
+%% convert to the final tuple tree used by the MIB process.
+%% A Node is represented as in the final tree.
+%% The tree is not represented as a N-tuple, but as an Index-list.
+%% Example: Temporary: [{1, Node1}, {3, Node3}]
+%% Final: {Node1, undefined_node, Node3}
+%% Pre: Mes are sorted on oid.
+%%----------------------------------------------------------------------
+build_subtree(LevelPrefix, [Me | Mes], MibName) ->
+ ?vtrace("build subtree -> ~n"
+ " oid: ~p~n"
+ " LevelPrefix: ~p~n"
+ " MibName: ~p", [Me#me.oid, LevelPrefix, MibName]),
+ EType = Me#me.entrytype,
+ ?vtrace("build subtree -> EType = ~p",[EType]),
+ case in_subtree(LevelPrefix, Me) of
+ above ->
+ ?vtrace("build subtree -> above",[]),
+ {[], [Me|Mes]};
+ {node, Index} ->
+ ?vtrace("build subtree -> node at ~p",[Index]),
+ {Tree, RestMes} = build_subtree(LevelPrefix, Mes, MibName),
+ {[{Index, {node, {EType, MibName}}} | Tree], RestMes};
+ {subtree, Index, NewLevelPrefix} ->
+ ?vtrace("build subtree -> subtree at"
+ "~n ~w with ~w",
+ [Index, NewLevelPrefix]),
+ {BelowTree, RestMes} =
+ build_subtree(NewLevelPrefix, Mes, MibName),
+ {CurTree, RestMes2} =
+ build_subtree(LevelPrefix, RestMes, MibName),
+ {[{Index, {tree, BelowTree, {EType,MibName}}}| CurTree], RestMes2};
+ {internal_subtree, Index, NewLevelPrefix} ->
+ ?vtrace("build subtree -> internal_subtree at"
+ "~n ~w with ~w",
+ [Index,NewLevelPrefix]),
+ {BelowTree, RestMes} =
+ build_subtree(NewLevelPrefix, [Me | Mes], MibName),
+ {CurTree, RestMes2} =
+ build_subtree(LevelPrefix, RestMes, MibName),
+ {[{Index, {tree, BelowTree, internal}} | CurTree], RestMes2}
+ end;
+
+build_subtree(_LevelPrefix, [], _MibName) ->
+ ?vtrace("build subtree -> done", []),
+ {[], []}.
+
+%%--------------------------------------------------
+%% Purpose: Determine how/if/where Me should be inserted in subtree
+%% with LevelPrefix. This function does not build any tree, only
+%% determinses what should be done (by build subtree).
+%% Returns:
+%% above - Indicating that this ME should _not_ be in this subtree.
+%% {node, Index} - yes, construct a node with index Index on this level
+%% {internal_subtree, Index, NewLevelPrefix} - yes, there should be an
+%% internal subtree at this index.
+%% {subtree, Index, NewLevelPrefix} - yes, construct a subtree with
+%% NewLevelPrefix and insert this on current level in position Index.
+%%--------------------------------------------------
+in_subtree(LevelPrefix, Me) ->
+ case lists:prefix(LevelPrefix, Me#me.oid) of
+ true when length(Me#me.oid) > length(LevelPrefix) ->
+ classify_how_in_subtree(LevelPrefix, Me);
+ _ ->
+ above
+ end.
+
+%%--------------------------------------------------
+%% See comment about in_subtree/2. This function takes care of all cases
+%% where the ME really should be in _this_ subtree (not above).
+%%--------------------------------------------------
+classify_how_in_subtree(LevelPrefix, Me)
+ when (length(Me#me.oid) =:= (length(LevelPrefix) + 1)) ->
+ Oid = Me#me.oid,
+ case node_or_subtree(Me#me.entrytype) of
+ subtree ->
+ {subtree, lists:last(Oid), Oid};
+ node ->
+ {node, lists:last(Oid)}
+ end;
+
+classify_how_in_subtree(LevelPrefix, Me)
+ when (length(Me#me.oid) > (length(LevelPrefix) + 1)) ->
+ L1 = length(LevelPrefix) + 1,
+ Oid = Me#me.oid,
+ {internal_subtree, lists:nth(L1, Oid), lists:sublist(Oid, 1, L1)}.
+
+%%--------------------------------------------------
+%% Determines how to treat different kinds om MEs in the tree building process.
+%% Pre: all internal nodes have been removed.
+%%--------------------------------------------------
+node_or_subtree(table) -> subtree;
+node_or_subtree(table_entry) -> subtree;
+node_or_subtree(variable) -> node;
+node_or_subtree(table_column) -> node.
+
+%%--------------------------------------------------
+%% Purpose: (Recursively) Converts a temporary tree (see above) to a final tree.
+%% If input is a ListTree, output is a TupleTree.
+%% If input is a Node, output is the same Node.
+%% Pre: All Indexes are >= 0.
+%%--------------------------------------------------
+convert_tree({Index, {tree, Tree, Info}}) when Index >= 0 ->
+ L = lists:map(fun convert_tree/1, Tree),
+ {Index, {tree, dict_list_to_tuple(L), Info}};
+convert_tree({Index, {node, Info}}) when Index >= 0 ->
+ {Index, {node, Info}};
+convert_tree(Tree) when is_list(Tree) ->
+ L = lists:map(fun convert_tree/1, Tree),
+ dict_list_to_tuple(L).
+
+%%----------------------------------------------------------------------
+%% Purpose: Converts a single level (that is non-recursively) from
+%% the temporary indexlist to the N-tuple.
+%% Input: A list of {Index, Data}.
+%% Output: A tuple where element Index is Data.
+%%----------------------------------------------------------------------
+dict_list_to_tuple(L) ->
+ L2 = lists:keysort(1, L),
+ list_to_tuple(integrate_indexes(0, L2)).
+
+%%----------------------------------------------------------------------
+%% Purpose: Helper function for dict_list_to_tuple/1.
+%% Converts an indexlist to a N-list.
+%% Input: A list of {Index, Data}.
+%% Output: A (usually longer, never shorter) list where element Index is Data.
+%% Example: [{1,hej}, {3, sven}] will give output
+%% [undefined_node, hej, undefined_node, sven].
+%% Initially CurIndex should be 0.
+%%----------------------------------------------------------------------
+integrate_indexes(CurIndex, [{CurIndex, Data} | T]) ->
+ [Data | integrate_indexes(CurIndex + 1, T)];
+integrate_indexes(_Index, []) ->
+ [];
+integrate_indexes(CurIndex, L) ->
+ [undefined_node | integrate_indexes(CurIndex + 1, L)].
+
+%%%======================================================================
+%%% 4. Tree merging
+%%% Used by: load mib, insert subagent.
+%%%======================================================================
+
+%%----------------------------------------------------------------------
+%% Arg: Two root nodes (that is to be merged).
+%% Returns: A new root node where the nodes have been merger to one.
+%%----------------------------------------------------------------------
+merge_nodes(Same, Same) ->
+ Same;
+merge_nodes(Node, undefined_node) ->
+ Node;
+merge_nodes(undefined_node, Node) ->
+ Node;
+merge_nodes({tree, Tree1, internal}, {tree, Tree2, internal}) ->
+ {tree, merge_levels(tuple_to_list(Tree1),tuple_to_list(Tree2)), internal};
+merge_nodes(Node1, Node2) ->
+ throw({error_merge_nodes, Node1, Node2}).
+
+%%----------------------------------------------------------------------
+%% Arg: Two levels to be merged.
+%% Here, a level is represented as a list of nodes. A list is easier
+%% to extend than a tuple.
+%% Returns: The resulting, merged level tuple.
+%%----------------------------------------------------------------------
+merge_levels(Level1, Level2) when length(Level1) =:= length(Level2) ->
+ MergeNodes = fun(N1, N2) -> merge_nodes(N1, N2) end,
+ list_to_tuple(snmp_misc:multi_map(MergeNodes, [Level1, Level2]));
+merge_levels(Level1, Level2) when length(Level1) > length(Level2) ->
+ merge_levels(Level1, Level2 ++
+ undefined_nodes_list(length(Level1) - length(Level2)));
+merge_levels(Level1, Level2) when length(Level1) < length(Level2) ->
+ merge_levels(Level2, Level1).
+
+undefined_nodes_list(N) -> lists:duplicate(N, undefined_node).
+
+
+%%%======================================================================
+%%% 5. Tree deletion routines
+%%% (for unload mib)
+%%%======================================================================
+
+%%----------------------------------------------------------------------
+%% Purpose: Actually kicks of the tree reconstruction.
+%% Returns: {list of removed MEs, NewTree}
+%%----------------------------------------------------------------------
+delete_mib_from_tree(MibName, {tree, Tree, internal}) ->
+ case delete_tree(Tree, MibName) of
+ [] ->
+ {tree, {undefined_node}, internal}; % reduce
+ LevelList ->
+ {tree, list_to_tuple(LevelList), internal}
+ end.
+
+%%----------------------------------------------------------------------
+%% Purpose: Deletes all nodes associated to MibName from this level and
+%% all levels below.
+%% If the new level does not contain information (that is, no
+%% other mibs use it) anymore the empty list is returned.
+%% Returns: {MEs, The new level represented as a list}
+%%----------------------------------------------------------------------
+delete_tree(Tree, MibName) when is_tuple(Tree) ->
+ NewLevel = delete_nodes(tuple_to_list(Tree), MibName, []),
+ case lists:filter(fun drop_undefined_nodes/1,NewLevel) of
+ [] -> [];
+ _A_perhaps_shorted_list ->
+ NewLevel % some other mib needs this level
+ end.
+
+%%----------------------------------------------------------------------
+%% Purpose: Nodes belonging to MibName are removed from the tree.
+%% Recursively deletes sub trees to this node.
+%% Returns: {MEs, NewNodesList}
+%%----------------------------------------------------------------------
+delete_nodes([], _MibName, AccNodes) ->
+ lists:reverse(AccNodes);
+
+delete_nodes([{node, {variable, MibName}}|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+
+delete_nodes([{node, {table_column, MibName}}|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+
+delete_nodes([{tree, _Tree, {table, MibName}}|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+
+delete_nodes([{tree, _Tree, {table_entry, MibName}}|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+
+delete_nodes([{tree, Tree, Info}|T], MibName, AccNodes) ->
+ case delete_tree(Tree, MibName) of
+ [] -> % tree completely deleted
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+ LevelList ->
+ delete_nodes(T, MibName,
+ [{tree, list_to_tuple(LevelList), Info} | AccNodes])
+ end;
+
+delete_nodes([NodeToKeep|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [NodeToKeep | AccNodes]).
+
+drop_undefined_nodes(undefined_node) -> false;
+drop_undefined_nodes(_) -> true.
+
+
+%%%======================================================================
+%%% 6. Functions for subagent handling
+%%%======================================================================
+
+%%----------------------------------------------------------------------
+%% Returns: A new Root|{error, reason}
+%%----------------------------------------------------------------------
+insert_subagent(Oid, OldRoot) ->
+ ListTree = build_tree_for_subagent(Oid),
+ case catch convert_tree(ListTree) of
+ {'EXIT', _Reason} ->
+ {error, 'cannot construct tree from oid'};
+ Level when is_tuple(Level) ->
+ T = {tree, Level, internal},
+ case catch merge_nodes(T, OldRoot) of
+ {error_merge_nodes, _Node1, _Node2} ->
+ {error, oid_conflict};
+ NewRoot when is_tuple(NewRoot) andalso
+ (element(1, NewRoot) =:= tree) ->
+ NewRoot
+ end
+ end.
+
+build_tree_for_subagent([Index]) ->
+ [{Index, {node, subagent}}];
+
+build_tree_for_subagent([Index | T]) ->
+ [{Index, {tree, build_tree_for_subagent(T), internal}}].
+
+%%----------------------------------------------------------------------
+%% Returns: A new tree where the subagent at Oid (2nd arg) has been deleted.
+%%----------------------------------------------------------------------
+delete_subagent({tree, Tree, Info}, [Index]) ->
+ {node, subagent} = element(Index+1, Tree),
+ {tree, setelement(Index+1, Tree, undefined_node), Info};
+delete_subagent({tree, Tree, Info}, [Index | TI]) ->
+ {tree, setelement(Index+1, Tree,
+ delete_subagent(element(Index+1, Tree), TI)), Info}.
+
+%%%======================================================================
+%%% 7. Misc functions
+%%%======================================================================
+
+%%----------------------------------------------------------------------
+%% Installs the mibs found in the database when starting the agent.
+%% Basically calls the instrumentation functions for all non-internal
+%% mib-entries
+%%----------------------------------------------------------------------
+install_mibs(MibDb, NodeDb) ->
+ MibNames = loaded(MibDb),
+ ?vtrace("install_mibs -> found following mibs in database: ~n"
+ "~p", [MibNames]),
+ install_mibs2(NodeDb, MibNames).
+
+install_mibs2(_, []) ->
+ ok;
+install_mibs2(NodeDb, [MibName|MibNames]) ->
+ Pattern = #node_info{oid = '_', mib_name = MibName, me = '_'},
+ Nodes = snmpa_general_db:match_object(NodeDb, Pattern),
+ MEs = [ME || #node_info{me = ME} <- Nodes],
+ ?vtrace("install_mibs2 -> installing ~p MEs for mib ~p",
+ [length(MEs),MibName]),
+ NewF = fun(ME) -> call_instrumentation(ME, new) end,
+ lists:foreach(NewF, MEs),
+ install_mibs2(NodeDb, MibNames).
+
+
+%%----------------------------------------------------------------------
+%% Does all side effect stuff during load_mib.
+%%----------------------------------------------------------------------
+install_mib(Db, Symbolic, Mib, MibName, FileName, NonInternalMes) ->
+ ?vdebug("install_mib -> entry with"
+ "~n Symbolic: ~p"
+ "~n MibName: ~p"
+ "~n FileName: ~p", [Symbolic, MibName, FileName]),
+ Rec = #mib_info{name = MibName, symbolic = Symbolic, file_name = FileName},
+ snmpa_general_db:write(Db, Rec),
+ install_mib2(Symbolic, MibName, Mib),
+ NewF = fun(ME) -> call_instrumentation(ME, new) end,
+ lists:foreach(NewF, NonInternalMes).
+
+install_mib2(true, MibName, Mib) ->
+ #mib{table_infos = TabInfos,
+ variable_infos = VarInfos,
+ mes = MEs,
+ asn1_types = ASN1Types,
+ traps = Traps} = Mib,
+ snmpa_symbolic_store:add_table_infos(MibName, TabInfos),
+ snmpa_symbolic_store:add_variable_infos(MibName, VarInfos),
+ snmpa_symbolic_store:add_aliasnames(MibName, MEs),
+ snmpa_symbolic_store:add_types(MibName, ASN1Types),
+ SetF = fun(Trap) ->
+ snmpa_symbolic_store:set_notification(Trap, MibName)
+ end,
+ lists:foreach(SetF, Traps);
+install_mib2(_, _, _) ->
+ ok.
+
+install_mes(_Db, _MibName, []) ->
+ ok;
+install_mes(Db, MibName, [ME|MEs]) ->
+ Node = #node_info{oid = ME#me.oid, mib_name = MibName, me = ME},
+ snmpa_general_db:write(Db, Node),
+ install_mes(Db, MibName, MEs).
+
+
+%%----------------------------------------------------------------------
+%% Does all side effect stuff during unload_mib.
+%%----------------------------------------------------------------------
+uninstall_mib(Db, Symbolic, MibName, MEs) ->
+ ?vtrace("uninstall_mib -> entry with"
+ "~n Db: ~p"
+ "~n Symbolic: ~p"
+ "~n MibName: ~p", [Db, Symbolic, MibName]),
+ Res = snmpa_general_db:delete(Db, MibName),
+ ?vtrace("uninstall_mib -> (mib) db delete result: ~p", [Res]),
+ uninstall_mib2(Symbolic, MibName),
+ DelF = fun(ME) -> call_instrumentation(ME, delete) end,
+ lists:foreach(DelF, MEs).
+
+uninstall_mib2(true, MibName) ->
+ snmpa_symbolic_store:delete_table_infos(MibName),
+ snmpa_symbolic_store:delete_variable_infos(MibName),
+ snmpa_symbolic_store:delete_aliasnames(MibName),
+ snmpa_symbolic_store:delete_types(MibName),
+ snmpa_symbolic_store:delete_notifications(MibName);
+uninstall_mib2(_, _) ->
+ ok.
+
+uninstall_mes(Db, MibName) ->
+ Pattern = #node_info{oid = '_', mib_name = MibName, me = '_'},
+ snmpa_general_db:match_delete(Db, Pattern).
+
+
+%%----------------------------------------------------------------------
+%% Create a list of the names of all the loaded mibs
+%%----------------------------------------------------------------------
+loaded(Db) ->
+ [N || #mib_info{name = N} <- snmpa_general_db:tab2list(Db)].
+
+
+%%----------------------------------------------------------------------
+%% Calls MFA-instrumentation with 'new' or 'delete' operation.
+%%----------------------------------------------------------------------
+call_instrumentation(#me{entrytype = variable, mfa={M,F,A}}, Operation) ->
+ ?vtrace("call instrumentation with"
+ "~n entrytype: variable"
+ "~n MFA: {~p,~p,~p}"
+ "~n Operation: ~p",
+ [M,F,A,Operation]),
+ catch apply(M, F, [Operation | A]);
+call_instrumentation(#me{entrytype = table_entry, mfa={M,F,A}}, Operation) ->
+ ?vtrace("call instrumentation with"
+ "~n entrytype: table_entry"
+ "~n MFA: {~p,~p,~p}"
+ "~n Operation: ~p",
+ [M,F,A,Operation]),
+ catch apply(M, F, [Operation | A]);
+call_instrumentation(_ShitME, _Operation) ->
+ done.
+
+
+maybe_drop_me(#me{entrytype = internal}) -> false;
+maybe_drop_me(#me{entrytype = group}) -> false;
+maybe_drop_me(#me{imported = true}) -> false;
+maybe_drop_me(_) -> true.
+
+
+%%----------------------------------------------------------------------
+%% Code change functions
+%%----------------------------------------------------------------------
+
+code_change(down, State) ->
+ ?d("code_change(down) -> entry",[]),
+ State;
+
+code_change(up, State) ->
+ ?d("code_change(up)",[]),
+ State;
+
+code_change(_Vsn, State) ->
+ State.
+
diff --git a/lib/snmp/src/agent/snmpa_mib_data_tttn.erl b/lib/snmp/src/agent/snmpa_mib_data_tttn.erl
new file mode 100644
index 0000000000..90ddf4869f
--- /dev/null
+++ b/lib/snmp/src/agent/snmpa_mib_data_tttn.erl
@@ -0,0 +1,1443 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(snmpa_mib_data_tttn).
+
+
+%%%-----------------------------------------------------------------
+%%%
+%%% TTTN - TupleTreeTupleNodes
+%%%
+%%% This module implements the MIB (internal) data structures.
+%%% The TTTN MIB Data structure consists of three items:
+%%%
+%%% 1) A mib-storage (as specified when new is called) for
+%%% the data associated with each variable, table,
+%%% table-entry and table-column in the MIB.
+%%% 2) A tree contains information of the Oids in the MIB.
+%%% 3) A list of registered subagents.
+%%%
+%%% The subagent information is consequently duplicated. It resides
+%%% both in the tree and in the list.
+%%%
+%%% When a mib is loaded, the tree is built from the plain list
+%%% in the binary file.
+%%%
+%%%-----------------------------------------------------------------
+
+-include_lib("snmp/include/snmp_types.hrl").
+-include_lib("snmp/src/misc/snmp_debug.hrl").
+
+-define(VMODULE,"MDATA_TTTN").
+-include_lib("snmp/src/misc/snmp_verbosity.hrl").
+
+-behaviour(snmpa_mib_data).
+
+-define(MIB_DATA, snmpa_mib_data).
+-define(MIB_NODE, snmpa_mib_node).
+-define(MIB_TREE, snmpa_mib_tree).
+-define(DUMMY_TREE_GENERATION, 1).
+-define(DEFAULT_TREE, {tree,{undefined_node},internal}).
+
+
+%%%-----------------------------------------------------------------
+%%% Table of contents
+%%% =================
+%%% 1. Interface
+%%% 2. Implementation of tree access
+%%% 3. Tree building functions
+%%% 4. Tree merging
+%%% 5. Tree deletion routines
+%%% 6. Functions for subagent handling
+%%% 7. Misc functions
+%%%-----------------------------------------------------------------
+
+-record(mib_data,
+ {
+ %% Mib storage module
+ module :: snmpa:mib_storage_module(),
+
+ %% A database of loaded mibs
+ %% #mib_info{}
+ mib_db,
+
+ %% A database with information about each node in the tree
+ %% #node_info{}
+ node_db,
+
+ %% A database containing _one_ record with the tree
+ %% without the subagent(s).
+ %% (the reason for this is part to get replication
+ %% and part out of convenience)
+ %% #tree{}
+ tree_db,
+
+ %% The root node (same as the tree part of the tree_db
+ %% but with the subagents added).
+ tree,
+
+ %% A list of {SAPid, Oid}
+ subagents = []
+ }).
+
+-record(mib_info, {name, symbolic, file_name}).
+-record(node_info, {oid, mib_name, me}).
+
+
+%% (behaviour) API
+-export([new/1,
+ close/1,
+ sync/1,
+ load_mib/4,
+ unload_mib/4,
+ lookup/2,
+ next/3,
+ register_subagent/3,
+ unregister_subagent/2,
+ dump/2,
+ which_mib/2, which_mibs/1,
+ whereis_mib/2,
+ info/1, info/2,
+ backup/2,
+ code_change/4]).
+
+
+%%-----------------------------------------------------------------
+%% A tree is represented as a N-tuple, where each element is a
+%% node. A node is:
+%% 1) {tree, Tree, Info} where Info can be {table, Id}, {table_entry, Id}
+%% or perhaps 'internal'
+%% 2) undefined_node (memory optimization (instead of {node, undefined}))
+%% 3) {node, Info} where Info can be {subagent, Pid}, {variable, Id},
+%% {table_column, Id}
+%% Id is {MibName, MibEntry}
+%% The over all root is represented as {tree, Tree, internal}.
+%%
+%% tree() = {tree, nodes(), tree_info()}
+%% nodes() = {tree() | node() | undefined_node, ...}
+%% node() = {node, node_info()}
+%% tree_info() = {table, Id} | {table_entry, Id} | internal
+%% node_info() = {subagent, Pid} | {variable, Id} | {table_colum, Id}
+%%-----------------------------------------------------------------
+
+%% This record is what is stored in the database. The 'tree' part
+%% is described above...
+-record(tree, {generation = ?DUMMY_TREE_GENERATION, root = ?DEFAULT_TREE}).
+
+
+%%%======================================================================
+%%% 1. Interface
+%%%======================================================================
+
+%%-----------------------------------------------------------------
+%% Func: new/1
+%% Returns: A representation of mib data.
+%%-----------------------------------------------------------------
+
+%% Where -> A list of nodes where the tables will be created
+new(MibStorage) ->
+ Mod = snmp_misc:get_option(module, MibStorage),
+ Opts = snmp_misc:get_option(options, MibStorage, []),
+
+ %% First we must check if there is already something to read
+ %% If a database already exists, then the tree structure has to be read
+ ?vdebug("open (mib) database",[]),
+ MibDb =
+ case Mod:open(?MIB_DATA, mib_info, record_info(fields, mib_info),
+ set, Opts) of
+ {ok, T1} ->
+ T1;
+ {error, Reason1} ->
+ throw({error, {open, mib_data, Reason1}})
+ end,
+
+ ?vdebug("open (mib) node database",[]),
+ NodeDb =
+ case Mod:open(?MIB_NODE, node_info, record_info(fields, node_info),
+ set, Opts) of
+ {ok, T2} ->
+ T2;
+ {error, Reason2} ->
+ throw({error, {open, mib_node, Reason2}})
+ end,
+
+ ?vdebug("open (mib) tree database",[]),
+ TreeDb =
+ case Mod:open(?MIB_TREE, tree, record_info(fields, tree),
+ set, Opts) of
+ {ok, T3} ->
+ T3;
+ {error, Reason3} ->
+ throw({error, {open, mib_tree, Reason3}})
+ end,
+
+ ?vdebug("write the default (mib) tree",[]),
+ Tree =
+ case Mod:read(TreeDb, ?DUMMY_TREE_GENERATION) of
+ false ->
+ T = #tree{},
+ Mod:write(TreeDb, T),
+ T;
+ {value, T} ->
+ T
+ end,
+ ?vdebug("install (existing) mibs",[]),
+ install_mibs(Mod, MibDb, NodeDb),
+ ?vdebug("done",[]),
+ #mib_data{module = Mod,
+ mib_db = MibDb,
+ node_db = NodeDb,
+ tree_db = TreeDb,
+ tree = Tree}.
+
+
+%%----------------------------------------------------------------------
+%% Returns: new mib data | {error, Reason}
+%%----------------------------------------------------------------------
+load_mib(MibData, FileName, MeOverride, TeOverride)
+ when is_record(MibData,mib_data) andalso is_list(FileName) ->
+ ?vlog("load mib file: ~p",[FileName]),
+ ActualFileName = filename:rootname(FileName, ".bin") ++ ".bin",
+ MibName = list_to_atom(filename:basename(FileName, ".bin")),
+ (catch do_load_mib(MibData, ActualFileName, MibName,
+ MeOverride, TeOverride)).
+
+do_load_mib(MibData, ActualFileName, MibName, MeOverride, TeOverride) ->
+ ?vtrace("do_load_mib -> entry with"
+ "~n ActualFileName: ~s"
+ "~n MibName: ~p",[ActualFileName, MibName]),
+ #mib_data{module = Mod,
+ mib_db = MibDb,
+ node_db = NodeDb,
+ %% tree_db = TreeDb,
+ tree = Tree} = MibData,
+ verify_not_loaded(Mod, MibDb, MibName),
+ ?vtrace("do_load_mib -> already loaded mibs:"
+ "~n ~p", [loaded(Mod, MibDb)]),
+ Mib = do_read_mib(ActualFileName),
+ ?vtrace("do_load_mib -> read mib ~s",[Mib#mib.name]),
+ NonInternalMes =
+ lists:filter(fun(ME) -> maybe_drop_me(ME) end, Mib#mib.mes),
+ OldRoot = Tree#tree.root,
+ T = build_tree(NonInternalMes, MibName),
+ ?d("load_mib -> "
+ "~n OldRoot: ~p"
+ "~n T: ~p", [OldRoot, T]),
+ case (catch merge_nodes(T, OldRoot)) of
+ {error_merge_nodes, Node1, Node2} ->
+ ?vlog("error merging nodes:"
+ "~n~p~nand~n~p", [Node1,Node2]),
+ {error, oid_conflict};
+ NewRoot when is_tuple(NewRoot) andalso (element(1,NewRoot) =:= tree) ->
+ ?d("load_mib -> "
+ "~n NewRoot: ~p", [NewRoot]),
+ Symbolic = not lists:member(no_symbolic_info, Mib#mib.misc),
+ case (catch check_notif_and_mes(TeOverride, MeOverride, Symbolic,
+ Mib#mib.traps, NonInternalMes)) of
+ true ->
+ install_mes(Mod, NodeDb, MibName, NonInternalMes),
+ install_mib(Mod,
+ MibDb, Symbolic, Mib,
+ MibName, ActualFileName, NonInternalMes),
+ ?vtrace("installed mib ~s", [Mib#mib.name]),
+ Tree2 = Tree#tree{root = NewRoot},
+ {ok, MibData#mib_data{tree = Tree2}};
+ Else ->
+ Else
+ end
+ end.
+
+
+verify_not_loaded(Mod, Tab, Name) ->
+ case Mod:read(Tab, Name) of
+ {value, #mib_info{name = Name}} ->
+ throw({error, already_loaded});
+ false ->
+ ok
+ end.
+
+do_read_mib(ActualFileName) ->
+ case snmp_misc:read_mib(ActualFileName) of
+ {error, Reason} ->
+ ?vlog("Failed reading mib file ~p with reason: ~p",
+ [ActualFileName, Reason]),
+ throw({error, Reason});
+ {ok, Mib} ->
+ Mib
+ end.
+
+%% The Tree DB is handled in a special way since it can be very large.
+sync(#mib_data{module = Mod,
+ mib_db = M,
+ node_db = N,
+ tree_db = T, tree = Tree, subagents = []}) ->
+ Mod:sync(M),
+ Mod:sync(N),
+ Mod:write(T, Tree),
+ Mod:sync(T);
+sync(#mib_data{module = Mod,
+ mib_db = M,
+ node_db = N,
+ tree_db = T, tree = Tree, subagents = SAs}) ->
+
+ Mod:sync(M),
+ Mod:sync(N),
+
+ %% Ouch. Since the subagent info is dynamic we do not
+ %% want to store the tree containing subagent info. So, we
+ %% have to create a tmp tree without those and store it.
+
+ case delete_subagents(Tree, SAs) of
+ {ok, TreeWithoutSAs} ->
+ Mod:write(T, TreeWithoutSAs),
+ Mod:sync(T);
+ Error ->
+ Error
+ end.
+
+delete_subagents(Tree, []) ->
+ {ok, Tree};
+delete_subagents(Tree0, [{_, Oid}|SAs]) ->
+ case (catch delete_subagent(Tree0, Oid)) of
+ {tree, _Tree, _Info} = Tree1 ->
+ delete_subagents(Tree1, SAs);
+ _Error ->
+ {error, {'invalid oid', Oid}}
+ end.
+
+%%----------------------------------------------------------------------
+%% (OTP-3601)
+%%----------------------------------------------------------------------
+check_notif_and_mes(TeOverride,MeOverride,Symbolic,Traps,MEs) ->
+ ?vtrace("check notifications and mib entries",[]),
+ check_notifications(TeOverride,Symbolic,Traps),
+ check_mes(MeOverride,MEs).
+
+check_notifications(true, _Symbolic, _Traps) ->
+ ?vtrace("trapentry override = true => skip check",[]),
+ true;
+check_notifications(_, Symbolic, Traps) ->
+ check_notifications(Symbolic, Traps).
+
+check_notifications(true, Traps) ->
+ check_notifications(Traps);
+check_notifications(_, _) -> true.
+
+check_notifications([]) -> true;
+check_notifications([#trap{trapname = Key} = Trap | Traps]) ->
+ ?vtrace("check notification [trap] with Key: ~p",[Key]),
+ case snmpa_symbolic_store:get_notification(Key) of
+ {value, Trap} -> check_notifications(Traps);
+ {value, _} -> throw({error, {'trap already defined', Key}});
+ undefined -> check_notifications(Traps)
+ end;
+check_notifications([#notification{trapname = Key} = Notif | Traps]) ->
+ ?vtrace("check notification [notification] with Key: ~p",[Key]),
+ case snmpa_symbolic_store:get_notification(Key) of
+ {value, Notif} ->
+ check_notifications(Traps);
+ {value, _} ->
+ throw({error, {'notification already defined', Key}});
+ undefined ->
+ check_notifications(Traps)
+ end;
+check_notifications([Crap | Traps]) ->
+ ?vlog("skipped check of: ~n~p",[Crap]),
+ check_notifications(Traps).
+
+check_mes(true,_) ->
+ ?vtrace("mibentry override = true => skip check",[]),
+ true;
+check_mes(_,MEs) ->
+ check_mes(MEs).
+
+check_mes([]) -> true;
+check_mes([#me{aliasname = Name, oid = Oid1} | MEs]) ->
+ ?vtrace("check mib entries with aliasname: ~p",[Name]),
+ case snmpa_symbolic_store:aliasname_to_oid(Name) of
+ {value, Oid1} ->
+ check_mes(MEs);
+ {value, Oid2} ->
+ ?vinfo("~n expecting '~p'~n but found '~p'",[Oid1, Oid2]),
+ throw({error, {'mibentry already defined', Name}});
+ false ->
+ check_mes(MEs)
+ end;
+check_mes([Crap | MEs]) ->
+ ?vlog("skipped check of: ~n~p",[Crap]),
+ check_mes(MEs).
+
+
+
+%%----------------------------------------------------------------------
+%% Returns: new mib data | {error, Reason}
+%%----------------------------------------------------------------------
+unload_mib(MibData, FileName, _, _) when is_list(FileName) ->
+ MibName = list_to_atom(filename:basename(FileName, ".bin")),
+ (catch do_unload_mib(MibData, MibName)).
+
+do_unload_mib(MibData, MibName) ->
+ ?vtrace("do_unload_mib -> entry with"
+ "~n MibName: ~p", [MibName]),
+ #mib_data{module = Mod,
+ mib_db = MibDb,
+ node_db = NodeDb,
+ %% tree_db = TreeDb,
+ tree = Tree} = MibData,
+ #mib_info{symbolic = Symbolic} = verify_loaded(Mod, MibDb, MibName),
+ NewRoot = delete_mib_from_tree(MibName, Tree#tree.root),
+ MEs = uninstall_mes(Mod, NodeDb, MibName),
+ uninstall_mib(Mod, MibDb, Symbolic, MibName, MEs),
+ NewMibData = MibData#mib_data{tree = Tree#tree{root = NewRoot}},
+ {ok, NewMibData}.
+
+verify_loaded(Mod, Tab, Name) ->
+ case Mod:read(Tab, Name) of
+ {value, MibInfo} ->
+ MibInfo;
+ false ->
+ throw({error, not_loaded})
+ end.
+
+
+close(#mib_data{module = Mod,
+ mib_db = MibDb,
+ node_db = NodeDb,
+ tree_db = TreeDb}) ->
+ Mod:close(MibDb),
+ Mod:close(NodeDb),
+ Mod:close(TreeDb),
+ ok.
+
+register_subagent(#mib_data{tree = T} = MibData, Oid, Pid) ->
+ case insert_subagent(Oid, T#tree.root) of
+ {error, Reason} ->
+ {error, Reason};
+ NewRootTree ->
+ SAs = [{Pid, Oid} | MibData#mib_data.subagents],
+ T2 = T#tree{root = NewRootTree},
+ {ok, MibData#mib_data{tree = T2, subagents = SAs}}
+ end.
+
+
+%%----------------------------------------------------------------------
+%% Purpose: Get a list of all loaded mibs
+%% Returns: [{Name, File}]
+%%----------------------------------------------------------------------
+
+which_mibs(#mib_data{module = Mod, mib_db = Db}) ->
+ Mibs = Mod:tab2list(Db),
+ [{Name, File} || #mib_info{name = Name, file_name = File} <- Mibs].
+
+
+%%----------------------------------------------------------------------
+%% Purpose: Get a list of all loaded mibs
+%% Returns: [{Name, File}]
+%%----------------------------------------------------------------------
+
+whereis_mib(#mib_data{module = Mod, mib_db = Db}, Name) ->
+ case Mod:read(Db, Name) of
+ {value, #mib_info{file_name = File}} ->
+ {ok, File};
+ false ->
+ {error, not_found}
+ end.
+
+
+%%----------------------------------------------------------------------
+%% Purpose: Deletes SA with Pid from all subtrees it handles.
+%% Returns: NewMibData.
+%%----------------------------------------------------------------------
+unregister_subagent(#mib_data{subagents = SAs} = MibData, Pid)
+ when is_pid(Pid) ->
+ SAs = MibData#mib_data.subagents,
+ case lists:keysearch(Pid, 1, SAs) of
+ false ->
+ {ok, MibData};
+ {value, {Pid, Oid}} ->
+ % we should never get an error since Oid is found in MibData.
+ {ok, NewMibData, _DeletedSA} = unregister_subagent(MibData, Oid),
+ % continue if the same Pid handles other mib subtrees.
+ unregister_subagent(NewMibData, Pid)
+ end;
+
+%%----------------------------------------------------------------------
+%% Purpose: Deletes one unique subagent.
+%% Returns: {error, Reason} | {ok, NewMibData, DeletedSubagentPid}
+%%----------------------------------------------------------------------
+unregister_subagent(#mib_data{tree = T} = MibData, Oid) when is_list(Oid) ->
+ case (catch delete_subagent(T#tree.root, Oid)) of
+ {tree, Tree, Info} ->
+ OldSAs = MibData#mib_data.subagents,
+ {value, {Pid, _Oid}} = lists:keysearch(Oid, 2, OldSAs),
+ SAs = lists:keydelete(Oid, 2, OldSAs),
+ T2 = T#tree{root = {tree, Tree, Info}},
+ {ok,
+ MibData#mib_data{tree = T2, subagents = SAs},
+ Pid};
+ _ ->
+ {error, {invalid_oid, Oid}}
+ end.
+
+%%----------------------------------------------------------------------
+%% Purpose: To inpect memory usage, loaded mibs, registered subagents
+%%----------------------------------------------------------------------
+info(MibData) ->
+ ?vtrace("retrieve info",[]),
+ #mib_data{module = Mod,
+ mib_db = MibDb,
+ node_db = NodeDb,
+ tree_db = TreeDb,
+ tree = Tree,
+ subagents = SAs} = MibData,
+ LoadedMibs = old_format(Mod:tab2list(MibDb)),
+ TreeSize = snmp_misc:mem_size(Tree),
+ {memory, ProcSize} = erlang:process_info(self(), memory),
+ MibDbSize = Mod:info(MibDb, memory),
+ NodeDbSize = Mod:info(NodeDb, memory),
+ TreeDbSize = Mod:info(TreeDb, memory),
+ [{loaded_mibs, LoadedMibs}, {subagents, SAs}, {tree_size_bytes, TreeSize},
+ {process_memory, ProcSize},
+ {db_memory, [{mib,MibDbSize},{node,NodeDbSize},{tree,TreeDbSize}]}].
+
+info(#mib_data{module = Mod, mib_db = MibDb}, loaded_mibs) ->
+ Mibs = Mod:tab2list(MibDb),
+ [filename:rootname(FN, ".bin") || #mib_info{file_name = FN} <- Mibs];
+info(#mib_data{tree = Tree}, tree_size_bytes) ->
+ snmp_misc:mem_size(Tree);
+info(_, process_memory) ->
+ {memory, ProcSize} = erlang:process_info(self(),memory),
+ ProcSize;
+info(#mib_data{module = Mod,
+ mib_db = MibDb,
+ node_db = NodeDb,
+ tree_db = TreeDb},
+ db_memory) ->
+ MibDbSize = Mod:info(MibDb, memory),
+ NodeDbSize = Mod:info(NodeDb, memory),
+ TreeDbSize = Mod:info(TreeDb, memory),
+ [{mib, MibDbSize}, {node, NodeDbSize}, {tree, TreeDbSize}];
+info(#mib_data{subagents = SAs}, subagents) ->
+ SAs.
+
+old_format(LoadedMibs) ->
+ ?vtrace("convert mib info to old format",[]),
+ [{N,S,F} || #mib_info{name=N,symbolic=S,file_name=F} <- LoadedMibs].
+
+
+%%----------------------------------------------------------------------
+%% A total dump for debugging.
+%%----------------------------------------------------------------------
+
+dump(#mib_data{module = Mod,
+ mib_db = MibDb,
+ node_db = NodeDb,
+ tree = Tree}, io) ->
+ (catch io:format("MIB-tables:~n~p~n~n",
+ [Mod:tab2list(MibDb)])),
+ (catch io:format("MIB-entries:~n~p~n~n",
+ [Mod:tab2list(NodeDb)])),
+ (catch io:format("Tree:~n~p~n", [Tree])), % good luck reading it!
+ ok;
+
+dump(#mib_data{module = Mod,
+ mib_db = MibDb,
+ node_db = NodeDb,
+ tree = Tree}, File) ->
+ case file:open(File, [write]) of
+ {ok, Fd} ->
+ io:format(Fd,"~s~n",
+ [snmp:date_and_time_to_string(snmp:date_and_time())]),
+ (catch io:format(Fd,"MIB-tables:~n~p~n~n",
+ [Mod:tab2list(MibDb)])),
+ (catch io:format(Fd, "MIB-entries:~n~p~n~n",
+ [Mod:tab2list(NodeDb)])),
+ io:format(Fd,"Tree:~n~p~n", [Tree]), % good luck reading it!
+ file:close(Fd),
+ ok;
+ {error, Reason} ->
+ ?vinfo("~n Failed opening file '~s' for reason ~p",
+ [File, Reason]),
+ {error, Reason}
+ end.
+
+
+backup(#mib_data{module = Mod,
+ mib_db = M,
+ node_db = N,
+ tree_db = T}, BackupDir) ->
+ MRes = Mod:backup(M, BackupDir),
+ NRes = Mod:backup(N, BackupDir),
+ TRes = Mod:backup(T, BackupDir),
+ handle_backup_res([{mib_db, MRes}, {node_db, NRes}, {tree_db, TRes}]).
+
+handle_backup_res(Res) ->
+ handle_backup_res(Res, []).
+
+handle_backup_res([], []) ->
+ ok;
+handle_backup_res([], Err) ->
+ {error, lists:reverse(Err)};
+handle_backup_res([{_, ok}|Res], Err) ->
+ handle_backup_res(Res, Err);
+handle_backup_res([{Tag, {error, Reason}}|Res], Err) ->
+ handle_backup_res(Res, [{Tag, Reason}|Err]);
+handle_backup_res([{Tag, Error}|Res], Err) ->
+ handle_backup_res(Res, [{Tag, Error}|Err]).
+
+
+%%%======================================================================
+%%% 2. Implementation of tree access
+%%% lookup and next.
+%%%======================================================================
+
+
+which_mib(#mib_data{tree = T} = D, Oid) ->
+ ?vtrace("which_mib -> entry with"
+ "~n Oid: ~p",[Oid]),
+ case (catch find_node(D, T#tree.root, Oid, [])) of
+ {variable, _ME, Mib} ->
+ ?vtrace("which_mib -> variable:"
+ "~n Mib: ~p", [Mib]),
+ {ok, Mib};
+ {table, _EntryME, _, Mib} ->
+ ?vtrace("which_mib -> table:"
+ "~n Mib: ~p", [Mib]),
+ {ok, Mib};
+ {subagent, SubAgentPid, _SANextOid} ->
+ ?vtrace("which_mib -> subagent:"
+ "~n SubAgentPid: ~p", [SubAgentPid]),
+ {error, {subagent, SubAgentPid}};
+ {false, ErrorCode} ->
+ ?vtrace("which_mib -> false:"
+ "~n ErrorCode: ~p",[ErrorCode]),
+ {error, ErrorCode};
+ false ->
+ ?vtrace("which_mib -> false",[]),
+ {error, noSuchObject};
+ {'EXIT', R} ->
+ ?vtrace("which_mib -> exit:"
+ "~n R: ~p",[R]),
+ {error, noSuchObject}
+ end.
+
+
+%%-----------------------------------------------------------------
+%% Func: lookup/2
+%% Purpose: Finds the mib entry corresponding to the Oid. If it is a
+%% variable, the Oid must be <Oid for var>.0 and if it is
+%% a table, Oid must be <table>.<entry>.<col>.<any>
+%% Returns: {variable, MibEntry} |
+%% {table_column, MibEntry, TableEntryOid} |
+%% {subagent, SubAgentPid, SAOid} |
+%% {false, Reason}
+%%-----------------------------------------------------------------
+lookup(#mib_data{tree = T} = D, Oid) ->
+ ?vtrace("lookup -> entry with"
+ "~n Oid: ~p",[Oid]),
+ case (catch find_node(D, T#tree.root, Oid, [])) of
+ {variable, ME, _Mib} when is_record(ME, me) ->
+ ?vtrace("lookup -> variable:"
+ "~n ME: ~p",[ME]),
+ {variable, ME};
+ {table, EntryME, {ColME, TableEntryOid}, _Mib} ->
+ ?vtrace("lookup -> table:"
+ "~n EntryME: ~p"
+ "~n ColME: ~p"
+ "~n RevTableEntryOid: ~p",
+ [EntryME, ColME, TableEntryOid]),
+ MFA = EntryME#me.mfa,
+ RetME = ColME#me{mfa = MFA},
+ {table_column, RetME, TableEntryOid};
+ {subagent, SubAgentPid, SANextOid} ->
+ ?vtrace("lookup -> subagent:"
+ "~n SubAgentPid: ~p"
+ "~n SANextOid: ~p", [SubAgentPid, SANextOid]),
+ {subagent, SubAgentPid, SANextOid};
+ {false, ErrorCode} ->
+ ?vtrace("lookup -> false:"
+ "~n ErrorCode: ~p",[ErrorCode]),
+ {false, ErrorCode};
+ false ->
+ ?vtrace("lookup -> false",[]),
+ {false, noSuchObject};
+ {'EXIT', R} ->
+ ?vtrace("lookup -> exit:"
+ "~n R: ~p",[R]),
+ {false, noSuchObject}
+ end.
+
+
+find_node(D, {tree, Tree, {table, _}}, RestOfOid, RevOid) ->
+ ?vtrace("find_node(tree,table) -> entry with"
+ "~n RestOfOid: ~p"
+ "~n RevOid: ~p",[RestOfOid, RevOid]),
+ find_node(D, {tree, Tree, internal}, RestOfOid, RevOid);
+find_node(D, {tree, Tree, {table_entry, _}}, RestOfOid, RevOid) ->
+ ?vtrace("find_node(tree,table_entry) -> entry with"
+ "~n RestOfOid: ~p"
+ "~n RevOid: ~p",[RestOfOid, RevOid]),
+ #mib_data{module = Mod, node_db = Db} = D,
+ Oid = lists:reverse(RevOid),
+ case Mod:read(Db, Oid) of
+ {value, #node_info{me = ME, mib_name = Mib}} ->
+ case find_node(D, {tree, Tree, internal}, RestOfOid, RevOid) of
+ {false, ErrorCode} -> {false, ErrorCode};
+ Val -> {table, ME, Val, Mib}
+ end;
+ false ->
+ ?vinfo("find_node -> could not find table_entry ME with"
+ "~n RevOid: ~p"
+ "~n when"
+ "~n RestOfOid: ~p",
+ [RevOid, RestOfOid]),
+ false
+ end;
+find_node(D, {tree, Tree, _Internal}, [Int | RestOfOid], RevOid) ->
+ ?vtrace("find_node(tree) -> entry with"
+ "~n Int: ~p"
+ "~n RestOfOid: ~p"
+ "~n RevOid: ~p",[Int, RestOfOid, RevOid]),
+ find_node(D, element(Int+1, Tree), RestOfOid, [Int | RevOid]);
+find_node(D, {node, {table_column, _}}, RestOfOid, [ColInt | RevOid]) ->
+ ?vtrace("find_node(tree,table_column) -> entry with"
+ "~n RestOfOid: ~p"
+ "~n ColInt: ~p"
+ "~n RevOid: ~p",[RestOfOid, ColInt, RevOid]),
+ #mib_data{module = Mod, node_db = Db} = D,
+ Oid = lists:reverse([ColInt | RevOid]),
+ case Mod:read(Db, Oid) of
+ {value, #node_info{me = ME}} ->
+ {ME, lists:reverse(RevOid)};
+ false ->
+ X = Mod:read(Db, lists:reverse([ColInt | RevOid])),
+ ?vinfo("find_node -> could not find table_column ME with"
+ "~n RevOid: ~p"
+ "~n trying [~p|~p]"
+ "~n X: ~p",
+ [RevOid, [ColInt | RevOid], X]),
+ false
+ end;
+find_node(D, {node, {variable, _MibName}}, [0], RevOid) ->
+ ?vtrace("find_node(tree,variable,[0]) -> entry with"
+ "~n RevOid: ~p",[RevOid]),
+ #mib_data{module = Mod, node_db = Db} = D,
+ Oid = lists:reverse(RevOid),
+ case Mod:read(Db, Oid) of
+ {value, #node_info{me = ME, mib_name = Mib}} ->
+ {variable, ME, Mib};
+ false ->
+ ?vinfo("find_node -> could not find variable ME with"
+ "~n RevOid: ~p", [RevOid]),
+ false
+ end;
+find_node(_D, {node, {variable, _MibName}}, [], _RevOid) ->
+ ?vtrace("find_node(tree,variable,[]) -> entry",[]),
+ {false, noSuchObject};
+find_node(_D, {node, {variable, _MibName}}, _, _RevOid) ->
+ ?vtrace("find_node(tree,variable) -> entry",[]),
+ {false, noSuchInstance};
+find_node(D, {node, subagent}, _RestOfOid, SARevOid) ->
+ ?vtrace("find_node(tree,subagent) -> entry with"
+ "~n SARevOid: ~p",[SARevOid]),
+ #mib_data{subagents = SAs} = D,
+ SAOid = lists:reverse(SARevOid),
+ case lists:keysearch(SAOid, 2, SAs) of
+ {value, {SubAgentPid, SAOid}} ->
+ {subagent, SubAgentPid, SAOid};
+ false ->
+ ?vinfo("find_node -> could not find subagent with"
+ "~n SAOid: ~p"
+ "~n SAs: ~p", [SAOid, SAs]),
+ false
+ end;
+find_node(_D, Node, _RestOfOid, _RevOid) ->
+ ?vtrace("find_node -> failed:~n~p",[Node]),
+ {false, noSuchObject}.
+
+
+%%-----------------------------------------------------------------
+%% Func: next/3
+%% Purpose: Finds the lexicographically next oid.
+%% Returns: endOfMibView |
+%% {subagent, SubAgentPid, SAOid} |
+%% {variable, MibEntry, VarOid} |
+%% {table, TableOid, TableRestOid, MibEntry}
+%% If a variable is returnes, it is in the MibView.
+%% If a table or subagent is returned, it *may* be in the MibView.
+%%-----------------------------------------------------------------
+next(#mib_data{tree = T} = D, Oid, MibView) ->
+ case catch next_node(D, T#tree.root, Oid, [], MibView) of
+ false -> endOfMibView;
+ Else -> Else
+ end.
+
+%%-----------------------------------------------------------------
+%% This function is used as long as we have any Oid left. Take
+%% one integer at a time from the Oid, and traverse the tree
+%% accordingly. When the Oid is empty, call find_next.
+%% Returns: {subagent, SubAgentPid, SAOid} |
+%% false |
+%% {variable, MibEntry, VarOid} |
+%% {table, TableOid, TableRestOid, MibEntry}
+%%-----------------------------------------------------------------
+next_node(_D, undefined_node, _Oid, _RevOidSoFar, _MibView) ->
+ ?vtrace("next_node(undefined_node) -> entry", []),
+ false;
+
+next_node(_D, {tree, Tree, {table_entry, _Id}}, [Int | _Oid],
+ _RevOidSoFar, _MibView)
+ when Int+1 > size(Tree) ->
+ ?vtrace("next_node(tree,table_entry) -> entry when not found whith"
+ "~n Int: ~p"
+ "~n size(Tree): ~p", [Int, size(Tree)]),
+ false;
+next_node(D, {tree, Tree, {table_entry, _MibName}},
+ Oid, RevOidSoFar, MibView) ->
+ ?vtrace("next_node(tree,table_entry) -> entry when"
+ "~n size(Tree): ~p"
+ "~n Oid: ~p"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p", [size(Tree), Oid, RevOidSoFar, MibView]),
+ OidSoFar = lists:reverse(RevOidSoFar),
+ case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+ true ->
+ ?vdebug("next_node(tree,table_entry) -> not in mib view",[]),
+ false;
+ _ ->
+ #mib_data{module = Mod, node_db = Db} = D,
+ case Mod:read(Db, OidSoFar) of
+ false ->
+ ?vinfo("next_node -> could not find table_entry with"
+ "~n OidSoFar: ~p", [OidSoFar]),
+ false;
+ {value, #node_info{me = ME}} ->
+ ?vtrace("next_node(tree,table_entry) -> found: ~n ~p",
+ [ME]),
+ {table, OidSoFar, Oid, ME}
+ end
+ end;
+
+next_node(D, {tree, Tree, _Info}, [Int | RestOfOid], RevOidSoFar, MibView)
+ when (Int < size(Tree)) andalso (Int >= 0) ->
+ ?vtrace("next_node(tree) -> entry when"
+ "~n size(Tree): ~p"
+ "~n Int: ~p"
+ "~n RestOfOid: ~p"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p",
+ [size(Tree), Int, RestOfOid, RevOidSoFar, MibView]),
+ case next_node(D, element(Int+1,Tree),
+ RestOfOid, [Int|RevOidSoFar], MibView) of
+ false ->
+ find_next(D, {tree, Tree, _Info}, Int+1, RevOidSoFar, MibView);
+ Else ->
+ Else
+ end;
+%% no solution
+next_node(D, {tree, Tree, _Info}, [], RevOidSoFar, MibView) ->
+ ?vtrace("next_node(tree,[]) -> entry when"
+ "~n size(Tree): ~p"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p",
+ [size(Tree), RevOidSoFar, MibView]),
+ find_next(D, {tree, Tree, _Info}, 0, RevOidSoFar, MibView);
+next_node(_D, {tree, Tree, _Info}, _RestOfOid, _RevOidSoFar, _MibView) ->
+ ?vtrace("next_node(tree) -> entry when"
+ "~n size(Tree): ~p", [size(Tree)]),
+ false;
+
+next_node(D, {node, subagent}, Oid, RevOidSoFar, MibView) ->
+ ?vtrace("next_node(node,subagent) -> entry when"
+ "~n Oid: ~p"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p",
+ [Oid, RevOidSoFar, MibView]),
+ OidSoFar = lists:reverse(RevOidSoFar),
+ case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+ true ->
+ false;
+ _ ->
+ #mib_data{subagents = SAs} = D,
+ case lists:keysearch(OidSoFar, 2, SAs) of
+ {value, {SubAgentPid, OidSoFar}} ->
+ {subagent, SubAgentPid, OidSoFar};
+ _ ->
+ ?vinfo("next_node -> could not find subagent with"
+ "~n OidSoFar: ~p"
+ "~n SAs: ~p", [OidSoFar, SAs]),
+ false
+ end
+ end;
+
+next_node(D, {node, {variable, _MibName}}, [], RevOidSoFar, MibView) ->
+ ?vtrace("next_node(node,variable,[]) -> entry when"
+ "~n RevOidSoFar: ~p"
+ "~n MibView: ~p",
+ [RevOidSoFar, MibView]),
+ OidSoFar = lists:reverse([0 | RevOidSoFar]),
+ case snmpa_acm:validate_mib_view(OidSoFar, MibView) of
+ true ->
+ #mib_data{module = Mod, node_db = Db} = D,
+ case Mod:read(Db, lists:reverse(RevOidSoFar)) of
+ false ->
+ ?vinfo("next_node -> could not find variable with"
+ "~n RevOidSoFar: ~p", [RevOidSoFar]),
+ false;
+ {value, #node_info{me = ME}} ->
+ {variable, ME, OidSoFar}
+ end;
+ _ ->
+ false
+ end;
+
+next_node(_D, {node, {variable, _MibName}}, _Oid, _RevOidSoFar, _MibView) ->
+ ?vtrace("next_node(node,variable) -> entry", []),
+ false.
+
+
+%%-----------------------------------------------------------------
+%% This function is used to find the first leaf from where we
+%% are.
+%% Returns: {subagent, SubAgentPid, SAOid} |
+%% false |
+%% {variable, MibEntry, VarOid} |
+%% {table, TableOid, TableRestOid, MibEntry}
+%% PRE: This function must always be called with a {internal, Tree}
+%% node.
+%%-----------------------------------------------------------------
+find_next(D, {tree, Tree, internal}, Idx, RevOidSoFar, MibView)
+ when Idx < size(Tree) ->
+ case find_next(D, element(Idx+1, Tree), 0, [Idx| RevOidSoFar], MibView) of
+ false ->
+ find_next(D, {tree, Tree, internal}, Idx+1, RevOidSoFar, MibView);
+ Other ->
+ Other
+ end;
+find_next(_D, {tree, _Tree, internal}, _Idx, _RevOidSoFar, _MibView) ->
+ false;
+find_next(_D, undefined_node, _Idx, _RevOidSoFar, _MibView) ->
+ false;
+find_next(D, {tree, Tree, {table, _MibName}}, Idx, RevOidSoFar, MibView) ->
+ find_next(D, {tree, Tree, internal}, Idx, RevOidSoFar, MibView);
+find_next(D, {tree, _Tree, {table_entry, _MibName}}, _Index,
+ RevOidSoFar, MibView) ->
+ OidSoFar = lists:reverse(RevOidSoFar),
+ case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+ true ->
+ false;
+ _ ->
+ #mib_data{module = Mod, node_db = Db} = D,
+ case Mod:read(Db, OidSoFar) of
+ false ->
+ ?vinfo("find_next -> could not find table_entry ME with"
+ "~n OidSoFar: ~p", [OidSoFar]),
+ false;
+ {value, #node_info{me = ME}} ->
+ {table, OidSoFar, [], ME}
+ end
+ end;
+find_next(D, {node, {variable, _MibName}}, _Idx, RevOidSoFar, MibView) ->
+ OidSoFar = lists:reverse([0 | RevOidSoFar]),
+ case snmpa_acm:validate_mib_view(OidSoFar, MibView) of
+ true ->
+ #mib_data{module = Mod, node_db = Db} = D,
+ case Mod:read(Db, lists:reverse(RevOidSoFar)) of
+ false ->
+ ?vinfo("find_next -> could not find variable with"
+ "~n RevOidSoFar: ~p", [RevOidSoFar]),
+ false;
+ {value, #node_info{me = ME}} ->
+ {variable, ME, OidSoFar}
+ end;
+ _ ->
+ false
+ end;
+find_next(D, {node, subagent}, _Idx, RevOidSoFar, MibView) ->
+ OidSoFar = lists:reverse(RevOidSoFar),
+ case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+ true ->
+ false;
+ _ ->
+ #mib_data{subagents = SAs} = D,
+ case lists:keysearch(OidSoFar, 2, SAs) of
+ {value, {SubAgentPid, OidSoFar}} ->
+ {subagent, SubAgentPid, OidSoFar};
+ false ->
+ ?vinfo("find_node -> could not find subagent with"
+ "~n OidSoFar: ~p"
+ "~n SAs: ~p", [OidSoFar, SAs]),
+ false
+ end
+ end.
+
+%%%======================================================================
+%%% 3. Tree building functions
+%%% Used when loading mibs.
+%%%======================================================================
+
+build_tree(Mes, MibName) ->
+ ?d("build_tree -> "
+ "~n Mes: ~p", [Mes]),
+ {ListTree, []} = build_subtree([], Mes, MibName),
+ {tree, convert_tree(ListTree), internal}.
+
+%%----------------------------------------------------------------------
+%% Purpose: Builds the tree where all oids have prefix equal to LevelPrefix.
+%% Returns: {Tree, RestMes}
+%% RestMes are Mes that should not be in this subtree.
+%% The Tree is a temporary and simplified data structure that is easy to
+%% convert to the final tuple tree used by the MIB process.
+%% A Node is represented as in the final tree.
+%% The tree is not represented as a N-tuple, but as an Index-list.
+%% Example: Temporary: [{1, Node1}, {3, Node3}]
+%% Final: {Node1, undefined_node, Node3}
+%% Pre: Mes are sorted on oid.
+%%----------------------------------------------------------------------
+build_subtree(LevelPrefix, [Me | Mes], MibName) ->
+ ?vtrace("build subtree -> ~n"
+ " oid: ~p~n"
+ " LevelPrefix: ~p~n"
+ " MibName: ~p", [Me#me.oid, LevelPrefix, MibName]),
+ EType = Me#me.entrytype,
+ ?vtrace("build subtree -> EType = ~p",[EType]),
+ case in_subtree(LevelPrefix, Me) of
+ above ->
+ ?vtrace("build subtree -> above",[]),
+ {[], [Me|Mes]};
+ {node, Index} ->
+ ?vtrace("build subtree -> node at ~p",[Index]),
+ {Tree, RestMes} = build_subtree(LevelPrefix, Mes, MibName),
+ {[{Index, {node, {EType, MibName}}} | Tree], RestMes};
+ {subtree, Index, NewLevelPrefix} ->
+ ?vtrace("build subtree -> subtree at"
+ "~n ~w with ~w",
+ [Index, NewLevelPrefix]),
+ {BelowTree, RestMes} =
+ build_subtree(NewLevelPrefix, Mes, MibName),
+ {CurTree, RestMes2} =
+ build_subtree(LevelPrefix, RestMes, MibName),
+ {[{Index, {tree, BelowTree, {EType,MibName}}}| CurTree], RestMes2};
+ {internal_subtree, Index, NewLevelPrefix} ->
+ ?vtrace("build subtree -> internal_subtree at"
+ "~n ~w with ~w",
+ [Index,NewLevelPrefix]),
+ {BelowTree, RestMes} =
+ build_subtree(NewLevelPrefix, [Me | Mes], MibName),
+ {CurTree, RestMes2} =
+ build_subtree(LevelPrefix, RestMes, MibName),
+ {[{Index, {tree, BelowTree, internal}} | CurTree], RestMes2}
+ end;
+
+build_subtree(_LevelPrefix, [], _MibName) ->
+ ?vtrace("build subtree -> done", []),
+ {[], []}.
+
+%%--------------------------------------------------
+%% Purpose: Determine how/if/where Me should be inserted in subtree
+%% with LevelPrefix. This function does not build any tree, only
+%% determinses what should be done (by build subtree).
+%% Returns:
+%% above - Indicating that this ME should _not_ be in this subtree.
+%% {node, Index} - yes, construct a node with index Index on this level
+%% {internal_subtree, Index, NewLevelPrefix} - yes, there should be an
+%% internal subtree at this index.
+%% {subtree, Index, NewLevelPrefix} - yes, construct a subtree with
+%% NewLevelPrefix and insert this on current level in position Index.
+%%--------------------------------------------------
+in_subtree(LevelPrefix, Me) ->
+ case lists:prefix(LevelPrefix, Me#me.oid) of
+ true when length(Me#me.oid) > length(LevelPrefix) ->
+ classify_how_in_subtree(LevelPrefix, Me);
+ _ ->
+ above
+ end.
+
+%%--------------------------------------------------
+%% See comment about in_subtree/2. This function takes care of all cases
+%% where the ME really should be in _this_ subtree (not above).
+%%--------------------------------------------------
+classify_how_in_subtree(LevelPrefix, Me)
+ when (length(Me#me.oid) =:= (length(LevelPrefix) + 1)) ->
+ Oid = Me#me.oid,
+ case node_or_subtree(Me#me.entrytype) of
+ subtree ->
+ {subtree, lists:last(Oid), Oid};
+ node ->
+ {node, lists:last(Oid)}
+ end;
+
+classify_how_in_subtree(LevelPrefix, Me)
+ when (length(Me#me.oid) > (length(LevelPrefix) + 1)) ->
+ L1 = length(LevelPrefix) + 1,
+ Oid = Me#me.oid,
+ {internal_subtree, lists:nth(L1, Oid), lists:sublist(Oid, 1, L1)}.
+
+%%--------------------------------------------------
+%% Determines how to treat different kinds om MEs in the tree building process.
+%% Pre: all internal nodes have been removed.
+%%--------------------------------------------------
+node_or_subtree(table) -> subtree;
+node_or_subtree(table_entry) -> subtree;
+node_or_subtree(variable) -> node;
+node_or_subtree(table_column) -> node.
+
+%%--------------------------------------------------
+%% Purpose: (Recursively) Converts a temporary tree (see above) to a final tree.
+%% If input is a ListTree, output is a TupleTree.
+%% If input is a Node, output is the same Node.
+%% Pre: All Indexes are >= 0.
+%%--------------------------------------------------
+convert_tree({Index, {tree, Tree, Info}}) when Index >= 0 ->
+ L = lists:map(fun convert_tree/1, Tree),
+ {Index, {tree, dict_list_to_tuple(L), Info}};
+convert_tree({Index, {node, Info}}) when Index >= 0 ->
+ {Index, {node, Info}};
+convert_tree(Tree) when is_list(Tree) ->
+ L = lists:map(fun convert_tree/1, Tree),
+ dict_list_to_tuple(L).
+
+%%----------------------------------------------------------------------
+%% Purpose: Converts a single level (that is non-recursively) from
+%% the temporary indexlist to the N-tuple.
+%% Input: A list of {Index, Data}.
+%% Output: A tuple where element Index is Data.
+%%----------------------------------------------------------------------
+dict_list_to_tuple(L) ->
+ L2 = lists:keysort(1, L),
+ list_to_tuple(integrate_indexes(0, L2)).
+
+%%----------------------------------------------------------------------
+%% Purpose: Helper function for dict_list_to_tuple/1.
+%% Converts an indexlist to a N-list.
+%% Input: A list of {Index, Data}.
+%% Output: A (usually longer, never shorter) list where element Index is Data.
+%% Example: [{1,hej}, {3, sven}] will give output
+%% [undefined_node, hej, undefined_node, sven].
+%% Initially CurIndex should be 0.
+%%----------------------------------------------------------------------
+integrate_indexes(CurIndex, [{CurIndex, Data} | T]) ->
+ [Data | integrate_indexes(CurIndex + 1, T)];
+integrate_indexes(_Index, []) ->
+ [];
+integrate_indexes(CurIndex, L) ->
+ [undefined_node | integrate_indexes(CurIndex + 1, L)].
+
+%%%======================================================================
+%%% 4. Tree merging
+%%% Used by: load mib, insert subagent.
+%%%======================================================================
+
+%%----------------------------------------------------------------------
+%% Arg: Two root nodes (that is to be merged).
+%% Returns: A new root node where the nodes have been merger to one.
+%%----------------------------------------------------------------------
+merge_nodes(Same, Same) ->
+ Same;
+merge_nodes(Node, undefined_node) ->
+ Node;
+merge_nodes(undefined_node, Node) ->
+ Node;
+merge_nodes({tree, Tree1, internal}, {tree, Tree2, internal}) ->
+ {tree, merge_levels(tuple_to_list(Tree1),tuple_to_list(Tree2)), internal};
+merge_nodes(Node1, Node2) ->
+ throw({error_merge_nodes, Node1, Node2}).
+
+%%----------------------------------------------------------------------
+%% Arg: Two levels to be merged.
+%% Here, a level is represented as a list of nodes. A list is easier
+%% to extend than a tuple.
+%% Returns: The resulting, merged level tuple.
+%%----------------------------------------------------------------------
+merge_levels(Level1, Level2) when length(Level1) =:= length(Level2) ->
+ MergeNodes = fun(N1, N2) -> merge_nodes(N1, N2) end,
+ list_to_tuple(snmp_misc:multi_map(MergeNodes, [Level1, Level2]));
+merge_levels(Level1, Level2) when length(Level1) > length(Level2) ->
+ merge_levels(Level1, Level2 ++
+ undefined_nodes_list(length(Level1) - length(Level2)));
+merge_levels(Level1, Level2) when length(Level1) < length(Level2) ->
+ merge_levels(Level2, Level1).
+
+undefined_nodes_list(N) -> lists:duplicate(N, undefined_node).
+
+
+%%%======================================================================
+%%% 5. Tree deletion routines
+%%% (for unload mib)
+%%%======================================================================
+
+%%----------------------------------------------------------------------
+%% Purpose: Actually kicks of the tree reconstruction.
+%% Returns: {list of removed MEs, NewTree}
+%%----------------------------------------------------------------------
+delete_mib_from_tree(MibName, {tree, Tree, internal}) ->
+ case delete_tree(Tree, MibName) of
+ [] ->
+ {tree, {undefined_node}, internal}; % reduce
+ LevelList ->
+ {tree, list_to_tuple(LevelList), internal}
+ end.
+
+%%----------------------------------------------------------------------
+%% Purpose: Deletes all nodes associated to MibName from this level and
+%% all levels below.
+%% If the new level does not contain information (that is, no
+%% other mibs use it) anymore the empty list is returned.
+%% Returns: {MEs, The new level represented as a list}
+%%----------------------------------------------------------------------
+delete_tree(Tree, MibName) when is_tuple(Tree) ->
+ NewLevel = delete_nodes(tuple_to_list(Tree), MibName, []),
+ case lists:filter(fun drop_undefined_nodes/1,NewLevel) of
+ [] -> [];
+ _A_perhaps_shorted_list ->
+ NewLevel % some other mib needs this level
+ end.
+
+%%----------------------------------------------------------------------
+%% Purpose: Nodes belonging to MibName are removed from the tree.
+%% Recursively deletes sub trees to this node.
+%% Returns: {MEs, NewNodesList}
+%%----------------------------------------------------------------------
+delete_nodes([], _MibName, AccNodes) ->
+ lists:reverse(AccNodes);
+
+delete_nodes([{node, {variable, MibName}}|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+
+delete_nodes([{node, {table_column, MibName}}|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+
+delete_nodes([{tree, _Tree, {table, MibName}}|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+
+delete_nodes([{tree, _Tree, {table_entry, MibName}}|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+
+delete_nodes([{tree, Tree, Info}|T], MibName, AccNodes) ->
+ case delete_tree(Tree, MibName) of
+ [] -> % tree completely deleted
+ delete_nodes(T, MibName, [undefined_node | AccNodes]);
+ LevelList ->
+ delete_nodes(T, MibName,
+ [{tree, list_to_tuple(LevelList), Info} | AccNodes])
+ end;
+
+delete_nodes([NodeToKeep|T], MibName, AccNodes) ->
+ delete_nodes(T, MibName, [NodeToKeep | AccNodes]).
+
+drop_undefined_nodes(undefined_node) -> false;
+drop_undefined_nodes(_) -> true.
+
+
+%%%======================================================================
+%%% 6. Functions for subagent handling
+%%%======================================================================
+
+%%----------------------------------------------------------------------
+%% Returns: A new Root|{error, reason}
+%%----------------------------------------------------------------------
+insert_subagent(Oid, OldRoot) ->
+ ListTree = build_tree_for_subagent(Oid),
+ case catch convert_tree(ListTree) of
+ {'EXIT', _Reason} ->
+ {error, 'cannot construct tree from oid'};
+ Level when is_tuple(Level) ->
+ T = {tree, Level, internal},
+ case catch merge_nodes(T, OldRoot) of
+ {error_merge_nodes, _Node1, _Node2} ->
+ {error, oid_conflict};
+ NewRoot when is_tuple(NewRoot) andalso
+ (element(1, NewRoot) =:= tree) ->
+ NewRoot
+ end
+ end.
+
+build_tree_for_subagent([Index]) ->
+ [{Index, {node, subagent}}];
+
+build_tree_for_subagent([Index | T]) ->
+ [{Index, {tree, build_tree_for_subagent(T), internal}}].
+
+
+%%----------------------------------------------------------------------
+%% Returns: A new tree where the subagent at Oid (2nd arg) has been deleted.
+%%----------------------------------------------------------------------
+
+delete_subagent({tree, Tree, Info}, [Index]) ->
+ {node, subagent} = element(Index+1, Tree),
+ {tree, setelement(Index+1, Tree, undefined_node), Info};
+delete_subagent({tree, Tree, Info}, [Index | TI]) ->
+ {tree, setelement(Index+1, Tree,
+ delete_subagent(element(Index+1, Tree), TI)), Info}.
+
+
+%%%======================================================================
+%%% 7. Misc functions
+%%%======================================================================
+
+%%----------------------------------------------------------------------
+%% Installs the mibs found in the database when starting the agent.
+%% Basically calls the instrumentation functions for all non-internal
+%% mib-entries
+%%----------------------------------------------------------------------
+install_mibs(Mod, MibDb, NodeDb) ->
+ MibNames = loaded(Mod, MibDb),
+ ?vtrace("install_mibs -> found following mibs in database: ~n"
+ "~p", [MibNames]),
+ install_mibs2(Mod, NodeDb, MibNames).
+
+install_mibs2(_, _, []) ->
+ ok;
+install_mibs2(Mod, NodeDb, [MibName|MibNames]) ->
+ Pattern = #node_info{oid = '_', mib_name = MibName, me = '_'},
+ Nodes = Mod:match_object(NodeDb, Pattern),
+ MEs = [ME || #node_info{me = ME} <- Nodes],
+ ?vtrace("install_mibs2 -> installing ~p MEs for mib ~p",
+ [length(MEs), MibName]),
+ NewF = fun(ME) -> call_instrumentation(ME, new) end,
+ lists:foreach(NewF, MEs),
+ install_mibs2(Mod, NodeDb, MibNames).
+
+
+%%----------------------------------------------------------------------
+%% Does all side effect stuff during load_mib.
+%%----------------------------------------------------------------------
+install_mib(Mod, Db, Symbolic, Mib, MibName, FileName, NonInternalMes) ->
+ ?vdebug("install_mib -> entry with"
+ "~n Symbolic: ~p"
+ "~n MibName: ~p"
+ "~n FileName: ~p", [Symbolic, MibName, FileName]),
+ Rec = #mib_info{name = MibName, symbolic = Symbolic, file_name = FileName},
+ Mod:write(Db, Rec),
+ install_mib2(Symbolic, MibName, Mib),
+ NewF = fun(ME) -> call_instrumentation(ME, new) end,
+ lists:foreach(NewF, NonInternalMes).
+
+install_mib2(true, MibName, Mib) ->
+ #mib{table_infos = TabInfos,
+ variable_infos = VarInfos,
+ mes = MEs,
+ asn1_types = ASN1Types,
+ traps = Traps} = Mib,
+ snmpa_symbolic_store:add_table_infos(MibName, TabInfos),
+ snmpa_symbolic_store:add_variable_infos(MibName, VarInfos),
+ snmpa_symbolic_store:add_aliasnames(MibName, MEs),
+ snmpa_symbolic_store:add_types(MibName, ASN1Types),
+ SetF = fun(Trap) ->
+ snmpa_symbolic_store:set_notification(Trap, MibName)
+ end,
+ lists:foreach(SetF, Traps);
+install_mib2(_, _, _) ->
+ ok.
+
+install_mes(Mod, Db, MibName, MEs) ->
+ Write = fun(#me{oid = Oid} = ME) ->
+ Node = #node_info{oid = Oid,
+ mib_name = MibName,
+ me = ME},
+ Mod:write(Db, Node)
+ end,
+ install_mes(Write, MEs).
+
+install_mes(_Write, []) ->
+ ok;
+install_mes(Write, [ME|MEs]) ->
+ Write(ME),
+ install_mes(Write, MEs).
+
+
+%%----------------------------------------------------------------------
+%% Does all side effect stuff during unload_mib.
+%%----------------------------------------------------------------------
+uninstall_mib(Mod, Db, Symbolic, MibName, MEs) ->
+ ?vtrace("uninstall_mib -> entry with"
+ "~n Db: ~p"
+ "~n Symbolic: ~p"
+ "~n MibName: ~p", [Db, Symbolic, MibName]),
+ Res = Mod:delete(Db, MibName),
+ ?vtrace("uninstall_mib -> (mib) db delete result: ~p", [Res]),
+ uninstall_mib2(Symbolic, MibName),
+ DelF = fun(ME) -> call_instrumentation(ME, delete) end,
+ lists:foreach(DelF, MEs).
+
+uninstall_mib2(true, MibName) ->
+ snmpa_symbolic_store:delete_table_infos(MibName),
+ snmpa_symbolic_store:delete_variable_infos(MibName),
+ snmpa_symbolic_store:delete_aliasnames(MibName),
+ snmpa_symbolic_store:delete_types(MibName),
+ snmpa_symbolic_store:delete_notifications(MibName);
+uninstall_mib2(_, _) ->
+ ok.
+
+uninstall_mes(Mod, Db, MibName) ->
+ Pattern = #node_info{oid = '_', mib_name = MibName, me = '_'},
+ Mod:match_delete(Db, Pattern).
+
+
+%%----------------------------------------------------------------------
+%% Create a list of the names of all the loaded mibs
+%%----------------------------------------------------------------------
+loaded(Mod, Db) ->
+ [N || #mib_info{name = N} <- Mod:tab2list(Db)].
+
+
+%%----------------------------------------------------------------------
+%% Calls MFA-instrumentation with 'new' or 'delete' operation.
+%%----------------------------------------------------------------------
+call_instrumentation(#me{entrytype = variable, mfa={M,F,A}}, Operation) ->
+ ?vtrace("call instrumentation with"
+ "~n entrytype: variable"
+ "~n MFA: {~p,~p,~p}"
+ "~n Operation: ~p",
+ [M,F,A,Operation]),
+ catch apply(M, F, [Operation | A]);
+call_instrumentation(#me{entrytype = table_entry, mfa={M,F,A}}, Operation) ->
+ ?vtrace("call instrumentation with"
+ "~n entrytype: table_entry"
+ "~n MFA: {~p,~p,~p}"
+ "~n Operation: ~p",
+ [M,F,A,Operation]),
+ catch apply(M, F, [Operation | A]);
+call_instrumentation(_ShitME, _Operation) ->
+ done.
+
+
+maybe_drop_me(#me{entrytype = internal}) -> false;
+maybe_drop_me(#me{entrytype = group}) -> false;
+maybe_drop_me(#me{imported = true}) -> false;
+maybe_drop_me(_) -> true.
+
+
+%%----------------------------------------------------------------------
+%% Code change functions
+%%----------------------------------------------------------------------
+
+code_change(down, _Vsn, _Extra, State) ->
+ ?d("code_change(down) -> entry when"
+ "~n Vsn: ~p"
+ "~n Extra: ~p", [_Vsn, _Extra]),
+ State;
+
+code_change(up, _Vsn, _Extra, State) ->
+ ?d("code_change(up) -> entry when"
+ "~n Vsn: ~p"
+ "~n Extra: ~p", [_Vsn, _Extra]),
+ State.
+
+
diff --git a/lib/snmp/src/agent/snmpa_mib_storage.erl b/lib/snmp/src/agent/snmpa_mib_storage.erl
new file mode 100644
index 0000000000..5c3f76d89b
--- /dev/null
+++ b/lib/snmp/src/agent/snmpa_mib_storage.erl
@@ -0,0 +1,181 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013-2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(snmpa_mib_storage).
+
+-export_type([
+ mib_storage_fields/0,
+ mib_storage_table_type/0,
+ mib_storage_table_id/0
+ ]).
+
+
+%%% ----------------------------------------------------------------
+%%% This behaviour module defines the API for the mib-storage.
+%%% This is how the agent stores its internal mib-data
+%%% (symbolic-store and mib-server).
+%%%-----------------------------------------------------------------
+
+-type mib_storage_fields() :: [atom()].
+-type mib_storage_table_type() :: set | bag.
+-type mib_storage_table_id() :: term().
+
+
+%% ---------------------------------------------------------------
+%% open
+%%
+%% Open or create a mib-storage table.
+%% If any extra info needs to be communicated to the implementor
+%% (of the behaviour), this is done using the *Options* argument.
+%% ---------------------------------------------------------------
+
+%% Options is callback module dependant
+
+-callback open(Name :: atom(),
+ RecName :: atom(),
+ Fields :: mib_storage_fields(),
+ Type :: mib_storage_table_type(),
+ Options :: list()) ->
+ {ok, TabId :: mib_storage_table_id()} | {error, Reason :: term()}.
+
+
+%% ---------------------------------------------------------------
+%% close
+%%
+%% Close the mib-storage table. What this does is up to the
+%% implementor (when using mnesia it may be a no-op but for ets
+%% it may actually delete the table).
+%% ---------------------------------------------------------------
+
+-callback close(TabId :: mib_storage_table_id()) ->
+ term().
+
+
+%% ---------------------------------------------------------------
+%% read/2
+%%
+%% Retrieve a record from the mib-storage table.
+%% ---------------------------------------------------------------
+
+-callback read(TabId :: mib_storage_table_id(),
+ Key :: term()) ->
+ false | {value, Record :: tuple()}.
+
+
+%% ---------------------------------------------------------------
+%% write/2
+%%
+%% Write a record to the mib-storage table.
+%% ---------------------------------------------------------------
+
+-callback write(TabId :: mib_storage_table_id(),
+ Record :: tuple()) ->
+ ok | {error, Reason :: term()}.
+
+
+%% ---------------------------------------------------------------
+%% delete/1
+%%
+%% Delete the mib-storage table.
+%% ---------------------------------------------------------------
+
+-callback delete(TabId :: mib_storage_table_id()) ->
+ snmp:void().
+
+
+%% ---------------------------------------------------------------
+%% delete/2
+%%
+%% Delete a record from the mib-storage table.
+%% ---------------------------------------------------------------
+
+-callback delete(TabId :: mib_storage_table_id(),
+ Key :: term()) ->
+ ok | {error, Reason :: term()}.
+
+
+%% ---------------------------------------------------------------
+%% match_object
+%%
+%% Search the mib-storage table for records which matches
+%% the pattern.
+%% ---------------------------------------------------------------
+
+-callback match_object(TabId :: mib_storage_table_id(),
+ Pattern :: ets:match_pattern()) ->
+ {ok, Recs :: [tuple()]} | {error, Reason :: term()}.
+
+
+%% ---------------------------------------------------------------
+%% match_delete
+%%
+%% Search the mib-storage table for records which matches the
+%% pattern and deletes them from the database and return the
+%5 deleted records.
+%% ---------------------------------------------------------------
+
+-callback match_delete(TabId :: mib_storage_table_id(),
+ Pattern :: ets:match_pattern()) ->
+ {ok, Recs :: [tuple()]} | {error, Reason :: term()}.
+
+
+%% ---------------------------------------------------------------
+%% tab2list
+%%
+%% Return all records in the table in the form of a list.
+%% ---------------------------------------------------------------
+
+-callback tab2list(TabId :: mib_storage_table_id()) ->
+ [tuple()].
+
+
+%% ---------------------------------------------------------------
+%% info/1,2
+%%
+%% Retrieve implementation dependent mib-storage table
+%% information.
+%% ---------------------------------------------------------------
+
+-callback info(TabId :: mib_storage_table_id()) ->
+ Info :: term().
+
+-callback info(TabId :: mib_storage_table_id(), Item :: atom()) ->
+ Info :: term().
+
+
+%% ---------------------------------------------------------------
+%% sync
+%%
+%% Dump mib-storage table to disc (if it has a disk component).
+%% ---------------------------------------------------------------
+
+-callback sync(TabId :: mib_storage_table_id()) ->
+ snmp:void().
+
+
+%% ---------------------------------------------------------------
+%% backup
+%%
+%% Make a backup copy of the mib-storage table.
+%% ---------------------------------------------------------------
+
+-callback backup(TabId :: mib_storage_table_id(),
+ Dir :: file:filename()) ->
+ ok | {error, Reason :: term()}.
+
diff --git a/lib/snmp/src/agent/snmpa_mib_storage_dets.erl b/lib/snmp/src/agent/snmpa_mib_storage_dets.erl
new file mode 100644
index 0000000000..e84e18e7ea
--- /dev/null
+++ b/lib/snmp/src/agent/snmpa_mib_storage_dets.erl
@@ -0,0 +1,309 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013-2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(snmpa_mib_storage_dets).
+
+-behaviour(snmpa_mib_storage).
+
+
+%%%-----------------------------------------------------------------
+%%% This module implements the snmpa_mib_storage behaviour.
+%%% It uses dets for storage.
+%%%-----------------------------------------------------------------
+
+-export([
+ open/5,
+ close/1,
+ read/2,
+ write/2,
+ delete/1,
+ delete/2,
+ match_object/2,
+ match_delete/2,
+ tab2list/1,
+ info/1, info/2,
+ sync/1,
+ backup/2
+ ]).
+
+
+-define(VMODULE, "MS-DETS").
+-include("snmp_verbosity.hrl").
+
+-record(tab, {id, rec_name}).
+
+
+%% ---------------------------------------------------------------
+%% open
+%%
+%% Open or create a mib-storage (dets) table.
+%%
+%% Opts - A list of implementation dependent options
+%% dets_open_options() = [dets_open_option()]
+%% dets_open_option() = {dir, filename()} |
+%% {action, keep | clear} |
+%% {auto_save, default | pos_integer()} |
+%% {repair, force | boolean()}
+%%
+%% ---------------------------------------------------------------
+
+open(Name, RecName, _Fields, Type, Opts) ->
+ Dir = snmp_misc:get_option(dir, Opts),
+ Action = snmp_misc:get_option(action, Opts, keep),
+ AutoSave = snmp_misc:get_option(auto_save, Opts, default),
+ Repair = snmp_misc:get_option(repair, Opts, false),
+ File = dets_filename(Name, Dir),
+ OpenOpts = [{file, File},
+ {type, Type},
+ {keypos, 2},
+ {repair, Repair}] ++
+ case AutoSave of
+ default ->
+ [];
+ _ ->
+ [{auto_save, AutoSave}]
+ end,
+ case dets:open_file(Name, OpenOpts) of
+ {ok, ID} when (Action =:= keep) ->
+ {ok, #tab{id = ID, rec_name = RecName}};
+ {ok, ID} when (Action =:= clear) ->
+ dets:match_delete(ID, '_'),
+ {ok, #tab{id = ID, rec_name = RecName}};
+ {error, Reason} ->
+ {error, {dets_open, Reason}}
+ end.
+
+dets_filename(Name, Dir) ->
+ Dir1 = dets_filename1(Dir),
+ Dir2 = string:strip(Dir1, right, $/),
+ io_lib:format("~s/~p.dat", [Dir2, Name]).
+
+dets_filename1([]) -> ".";
+dets_filename1(Dir) -> Dir.
+
+
+%% ---------------------------------------------------------------
+%% close
+%%
+%% Close the table.
+%% ---------------------------------------------------------------
+
+close(#tab{id = ID}) ->
+ ?vtrace("close database ~p", [ID]),
+ dets:close(ID).
+
+
+%% ---------------------------------------------------------------
+%% read
+%%
+%% Retrieve a record from the database table.
+%% ---------------------------------------------------------------
+
+read(#tab{id = ID}, Key) ->
+ ?vtrace("read from table ~p: ~p", [ID, Key]),
+ case dets:lookup(ID, Key) of
+ [Rec|_] -> {value, Rec};
+ _ -> false
+ end.
+
+
+%% ---------------------------------------------------------------
+%% write
+%%
+%% Write a record to the database table.
+%% ---------------------------------------------------------------
+
+write(#tab{id = ID, rec_name = RecName}, Rec)
+ when (is_tuple(Rec) andalso (element(1, Rec) =:= RecName)) ->
+ ?vtrace("write to table ~p", [ID]),
+ dets:insert(ID, Rec).
+
+
+%% ---------------------------------------------------------------
+%% delete
+%%
+%% Delete the database table.
+%% ---------------------------------------------------------------
+
+delete(#tab{id = ID}) ->
+ ?vtrace("delete database ~p", [ID]),
+ File = dets:info(ID, filename),
+ case dets:close(ID) of
+ ok ->
+ file:delete(File);
+ Error ->
+ Error
+ end.
+
+
+%% ---------------------------------------------------------------
+%% delete
+%%
+%% Delete a record from the database table.
+%% ---------------------------------------------------------------
+
+delete(#tab{id = ID}, Key) ->
+ ?vtrace("delete from table ~p: ~p", [ID, Key]),
+ dets:delete(ID, Key).
+
+
+%% ---------------------------------------------------------------
+%% match_object
+%%
+%% Search the database table for records witch matches the pattern.
+%% ---------------------------------------------------------------
+
+match_object(#tab{id = ID}, Pattern) ->
+ ?vtrace("match_object in ~p of ~p", [ID, Pattern]),
+ dets:match_object(ID, Pattern).
+
+
+%% ---------------------------------------------------------------
+%% match_delete
+%%
+%% Search the database table for records witch matches the
+%% pattern and deletes them from the database table.
+%% ---------------------------------------------------------------
+
+match_delete(#tab{id = ID}, Pattern) ->
+ ?vtrace("match_delete in ~p with pattern ~p", [ID, Pattern]),
+ Recs = dets:match_object(ID, Pattern),
+ dets:match_delete(ID, Pattern),
+ Recs.
+
+
+%% ---------------------------------------------------------------
+%% tab2list
+%%
+%% Return all records in the table in the form of a list.
+%% ---------------------------------------------------------------
+
+tab2list(#tab{id = ID} = Tab) ->
+ ?vtrace("tab2list -> list of ~p", [ID]),
+ match_object(Tab, '_').
+
+
+%% ---------------------------------------------------------------
+%% info
+%%
+%% Retrieve implementation dependent mib-storage table
+%% information.
+%% ---------------------------------------------------------------
+
+info(#tab{id = ID}) ->
+ ?vtrace("info -> info of ~p", [ID]),
+ dets:info(ID).
+
+
+info(TabId, all = _Item) ->
+ info(TabId);
+info(#tab{id = ID}, memory = _Item) ->
+ ?vtrace("info on ~p (~w)", [ID, _Item]),
+ dets:info(ID, file_size);
+info(#tab{id = ID}, Item) ->
+ ?vtrace("info on ~p (~w)", [ID, Item]),
+ dets:info(ID, Item).
+
+
+%% ---------------------------------------------------------------
+%% sync
+%%
+%% Dump mib-storage table to disc (if it has a disk component)
+%% ---------------------------------------------------------------
+
+sync(#tab{id = ID}) ->
+ ?vtrace("sync -> sync ~p", [ID]),
+ dets:sync(ID).
+
+
+%% ---------------------------------------------------------------
+%% backup
+%%
+%% Make a backup copy of the mib-storage table.
+%% ---------------------------------------------------------------
+
+backup(#tab{id = ID}, BackupDir) ->
+ ?vtrace("backup -> backup of ~p to ~p", [ID, BackupDir]),
+ case dets:info(ID, filename) of
+ undefined ->
+ {error, no_file};
+ Filename ->
+ case filename:dirname(Filename) of
+ BackupDir ->
+ {error, db_dir};
+ _ ->
+ Type = dets:info(ID, type),
+ KP = dets:info(ID, keypos),
+ dets_backup(ID,
+ filename:basename(Filename),
+ BackupDir, Type, KP)
+ end
+ end.
+
+
+dets_backup(ID, Filename, BackupDir, Type, KP) ->
+ ?vtrace("dets_backup -> entry with"
+ "~n ID: ~p"
+ "~n Filename: ~p"
+ "~n BackupDir: ~p"
+ "~n Type: ~p"
+ "~n KP: ~p", [ID, Filename, BackupDir, Type, KP]),
+ BackupFile = filename:join(BackupDir, Filename),
+ ?vtrace("dets_backup -> "
+ "~n BackupFile: ~p", [BackupFile]),
+ Backup = list_to_atom(atom_to_list(ID) ++ "_backup"),
+ Opts = [{file, BackupFile}, {type, Type}, {keypos, KP}],
+ case dets:open_file(Backup, Opts) of
+ {ok, B} ->
+ ?vtrace("dets_backup -> create fun", []),
+ F = fun(Arg) ->
+ dets_backup(Arg, start, ID, B)
+ end,
+ dets:safe_fixtable(ID, true),
+ Res = dets:init_table(Backup, F, [{format, bchunk}]),
+ dets:safe_fixtable(ID, false),
+ ?vtrace("dets_backup -> Res: ~p", [Res]),
+ Res;
+ Error ->
+ ?vinfo("dets_backup -> open_file failed: "
+ "~n ~p", [Error]),
+ Error
+ end.
+
+dets_backup(close, _Cont, _ID, B) ->
+ dets:close(B),
+ ok;
+dets_backup(read, Cont1, ID, B) ->
+ case dets:bchunk(ID, Cont1) of
+ {Cont2, Data} ->
+ F = fun(Arg) ->
+ dets_backup(Arg, Cont2, ID, B)
+ end,
+ {Data, F};
+ '$end_of_table' ->
+ dets:close(B),
+ end_of_input;
+ Error ->
+ Error
+ end.
+
+
+%%----------------------------------------------------------------------
+
+%% user_err(F, A) ->
+%% snmpa_error:user_err(F, A).
diff --git a/lib/snmp/src/agent/snmpa_mib_storage_ets.erl b/lib/snmp/src/agent/snmpa_mib_storage_ets.erl
new file mode 100644
index 0000000000..04faf46864
--- /dev/null
+++ b/lib/snmp/src/agent/snmpa_mib_storage_ets.erl
@@ -0,0 +1,341 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013-2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(snmpa_mib_storage_ets).
+
+-behaviour(snmpa_mib_storage).
+
+%%%-----------------------------------------------------------------
+%%% This module implements the snmpa_mib_storage behaviour.
+%%% It uses ets for storage.
+%%%-----------------------------------------------------------------
+
+-export([
+ open/5,
+ close/1,
+ read/2,
+ write/2,
+ delete/1,
+ delete/2,
+ match_object/2,
+ match_delete/2,
+ tab2list/1,
+ info/1, info/2,
+ sync/1,
+ backup/2
+ ]).
+
+
+-define(VMODULE,"MS-ETS").
+-include("snmp_verbosity.hrl").
+
+-record(tab, {id, rec_name, file, checksum = false}).
+
+
+%% ---------------------------------------------------------------
+%% open
+%%
+%% Open or create an ets table.
+%% Possibly also read data from a (specified) file (mirror) and
+%% populate the table from that (the dir option).
+%%
+%% Opts - A list of implementation dependent options
+%% ets_open_options() = [ets_open_option()]
+%% ets_open_option() = {dir, filename()} |
+%% {action, keep | clear} |
+%% {checksum, boolean()}
+%%
+%% The RecName and Fields arguments are not used in this
+%% implementation.
+%%
+%% ---------------------------------------------------------------
+
+%% This function creates the ets table
+open(Name, RecName, _Fields, Type, Opts) ->
+ ?vtrace("open table ~p", [Name]),
+ case lists:keysearch(dir, 1, Opts) of
+ {value, {dir, Dir}} ->
+ Action = snmp_misc:get_option(action, Opts, keep),
+ Checksum = snmp_misc:get_option(checksum, Opts, false),
+ ?vtrace("open ~p database ~p - check if file exist", [Type, Name]),
+ File = filename:join(Dir, atom_to_list(Name) ++ ".db"),
+ case file:read_file_info(File) of
+ {ok, _} ->
+ ?vdebug("open ~p database ~p - file exist - try reading",
+ [Type, Name]),
+ case ets:file2tab(File, [{verify, Checksum}]) of
+ {ok, ID} ->
+ ?vtrace("open ~p database ~p - "
+ "data read from file", [Type, Name]),
+ {ok, #tab{id = ID,
+ rec_name = RecName,
+ file = File,
+ checksum = Checksum}};
+ {error, Reason} when (Action =:= keep) ->
+ ?vinfo("open ~p database ~p - "
+ "failed reading from file (keep): "
+ "~n ~p",
+ [Type, Name, Reason]),
+ {error, {file2tab, Reason}};
+ {error, Reason} ->
+ ?vlog("open ~p database ~p - "
+ "failed reading from file (clear): "
+ "~n ~p", [Type, Name, Reason]),
+ user_err("Warning: could not read file - "
+ "create new (empty): "
+ "~n File: ~p"
+ "~n Reason: ~p", [File, Reason]),
+ ID = ets:new(Name, [Type, protected, {keypos, 2}]),
+ write_ets_file(ID, File, Checksum),
+ {ok, #tab{id = ID,
+ rec_name = RecName,
+ file = File,
+ checksum = Checksum}}
+ end;
+ {error, enoent} ->
+ %% No such file - create it
+ ?vdebug("open ~p database ~p - "
+ "file does *not* exist - create",
+ [Type, Name]),
+ ID = ets:new(Name, [Type, protected, {keypos, 2}]),
+ write_ets_file(ID, File, Checksum),
+ {ok, #tab{id = ID,
+ rec_name = RecName,
+ file = File,
+ checksum = Checksum}};
+ {error, Reason} when (Action =:= keep) ->
+ ?vinfo("open ~p database ~p - "
+ "failed reading file info (keep): "
+ "~n ~p",
+ [Type, Name, Reason]),
+ {error, {read_file_info, Reason}};
+ {error, Reason} ->
+ ?vlog("open ~p database ~p - "
+ "failed reading file info (clear): "
+ "~n ~p",
+ [Type, Name, Reason]),
+ user_err("Warning: could not read file info - "
+ "create new file: "
+ "~n File: ~p"
+ "~n Reason: ~p", [File, Reason]),
+ ID = ets:new(Name, [Type, protected, {keypos, 2}]),
+ write_ets_file(ID, File, Checksum),
+ {ok, #tab{id = ID,
+ rec_name = RecName,
+ file = File,
+ checksum = Checksum}}
+ end;
+ false ->
+ ?vdebug("open ~p database ~p - ok", [Type, Name]),
+ ID = ets:new(Name, [Type, protected, {keypos, 2}]),
+ {ok, #tab{id = ID, rec_name = RecName}}
+ end.
+
+
+%% ---------------------------------------------------------------
+%% close
+%%
+%% Close the mib-storage table.
+%% We will delete the table and if there is a file component,
+%% will also be written to file.
+%% ---------------------------------------------------------------
+close(#tab{id = ID, file = undefined}) ->
+ ?vtrace("close (delete) table ~p", [ID]),
+ ets:delete(ID);
+close(#tab{id = ID, file = File, checksum = Checksum}) ->
+ ?vtrace("close (delete) table ~p", [ID]),
+ write_ets_file(ID, File, Checksum),
+ ets:delete(ID).
+
+
+%% ---------------------------------------------------------------
+%% read
+%%
+%% Retrieve a record from the mib-storage table.
+%% ---------------------------------------------------------------
+
+read(#tab{id = ID}, Key) ->
+ ?vtrace("read from table ~p: ~p", [ID, Key]),
+ case ets:lookup(ID, Key) of
+ [Rec|_] -> {value, Rec};
+ _ -> false
+ end.
+
+
+%% ---------------------------------------------------------------
+%% write
+%%
+%% Write a record to the mib-storage table.
+%% ---------------------------------------------------------------
+
+%% This is a very crude guard test is used instead of: is_record(Rec, RecName)
+write(#tab{id = ID, rec_name = RecName}, Rec)
+ when (is_tuple(Rec) andalso (element(1, Rec) =:= RecName)) ->
+ ?vtrace("write to table ~p", [ID]),
+ ets:insert(ID, Rec).
+
+
+%% ---------------------------------------------------------------
+%% delete
+%%
+%% Delete the mib-storage table.
+%% ---------------------------------------------------------------
+delete(#tab{id = ID, file = undefined}) ->
+ ?vtrace("delete table ~p", [ID]),
+ ets:delete(ID);
+delete(#tab{id = ID, file = File}) ->
+ ?vtrace("delete table ~p", [ID]),
+ file:delete(File),
+ ets:delete(ID).
+
+
+%% ---------------------------------------------------------------
+%% delete
+%%
+%% Delete a record from the mib-storage table.
+%% ---------------------------------------------------------------
+delete(#tab{id = ID}, Key) ->
+ ?vtrace("delete from table ~p: ~p", [ID, Key]),
+ ets:delete(ID, Key).
+
+
+%% ---------------------------------------------------------------
+%% match_object
+%%
+%% Search the mib-storage table for records witch matches
+%% the pattern.
+%% ---------------------------------------------------------------
+
+match_object(#tab{id = ID}, Pattern) ->
+ ?vtrace("match_object in ~p of ~p", [ID, Pattern]),
+ ets:match_object(ID, Pattern).
+
+
+%% ---------------------------------------------------------------
+%% match_delete
+%%
+%% Search the mib-storage table for records witch matches
+%% the pattern and deletes them from the table.
+%% ---------------------------------------------------------------
+
+match_delete(#tab{id = ID}, Pattern) ->
+ ?vtrace("match_delete in ~p with pattern ~p", [ID, Pattern]),
+ Recs = ets:match_object(ID, Pattern),
+ ets:match_delete(ID, Pattern),
+ Recs.
+
+
+%% ---------------------------------------------------------------
+%% tab2list
+%%
+%% Return all records in the mib-storage table in the form
+%% of a list.
+%% ---------------------------------------------------------------
+
+tab2list(#tab{id = ID}) ->
+ ?vtrace("tab2list -> list of ~p", [ID]),
+ ets:tab2list(ID).
+
+
+
+%% ---------------------------------------------------------------
+%% info/1,2
+%%
+%% Retrieve implementation dependent mib-storage table
+%% information.
+%% ---------------------------------------------------------------
+info(#tab{id = ID}) ->
+ ?vtrace("info on ~p", [ID]),
+ case ets:info(ID) of
+ undefined ->
+ [];
+ L ->
+ L
+ end.
+
+
+info(TabId, all = _Item) ->
+ info(TabId);
+info(#tab{id = ID}, Item) ->
+ ?vtrace("info on ~p", [ID]),
+ ets:info(ID, Item).
+
+
+%% ---------------------------------------------------------------
+%% sync
+%%
+%% Dump mib-storage table to disc (if there is a file compionent)
+%% ---------------------------------------------------------------
+
+sync(#tab{file = undefined}) ->
+ ok;
+sync(#tab{id = ID, file = File, checksum = Checksum}) ->
+ ?vtrace("sync ~p", [ID]),
+ write_ets_file(ID, File, Checksum).
+
+
+%% ---------------------------------------------------------------
+%% backup
+%%
+%% Make a backup copy of the mib-storage table. Only valid id
+%% there is a file component.
+%% ---------------------------------------------------------------
+
+backup(#tab{file = undefined}, _BackupDir) ->
+ ok;
+backup(#tab{id = ID, file = File, checksum = Checksum}, BackupDir) ->
+ ?vtrace("backup ~p to ~p", [ID, BackupDir]),
+ Filename = filename:basename(File),
+ case filename:join(BackupDir, Filename) of
+ File ->
+ %% Oups: backup-dir and db-dir the same
+ {error, db_dir};
+ BackupFile ->
+ write_ets_file(ID, BackupFile, Checksum)
+ end.
+
+
+%%----------------------------------------------------------------------
+
+write_ets_file(ID, File, Checksum) when (Checksum =:= true) ->
+ do_write_ets_file(ID, File, [{extended_info, [md5sum]}]);
+write_ets_file(ID, File, Checksum) when (Checksum =:= false) ->
+ do_write_ets_file(ID, File, []).
+
+do_write_ets_file(ID, File, Options) ->
+ TmpFile = File ++ ".tmp",
+ case ets:tab2file(ID, TmpFile, Options) of
+ ok ->
+ case file:rename(TmpFile, File) of
+ ok ->
+ ok;
+ Else ->
+ user_err("Warning: could not move file ~p"
+ " (~p)", [File, Else])
+ end;
+ {error, Reason} ->
+ user_err("Warning: could not save file ~p (~p)",
+ [File, Reason])
+ end.
+
+
+%%----------------------------------------------------------------------
+
+user_err(F, A) ->
+ snmpa_error:user_err(F, A).
diff --git a/lib/snmp/src/agent/snmpa_mib_storage_mnesia.erl b/lib/snmp/src/agent/snmpa_mib_storage_mnesia.erl
new file mode 100644
index 0000000000..192b5aa26e
--- /dev/null
+++ b/lib/snmp/src/agent/snmpa_mib_storage_mnesia.erl
@@ -0,0 +1,302 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013-2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(snmpa_mib_storage_mnesia).
+
+
+-behaviour(snmpa_mib_storage).
+
+%%%-----------------------------------------------------------------
+%%% This module implements the snmpa_mib_storage behaviour.
+%%% It uses mnesia for storage.
+%%%-----------------------------------------------------------------
+
+-export([
+ open/5,
+ close/1,
+ read/2,
+ write/2,
+ delete/1,
+ delete/2,
+ match_object/2,
+ match_delete/2,
+ tab2list/1,
+ info/1, info/2,
+ sync/1,
+ backup/2
+ ]).
+
+
+-define(VMODULE,"MS-MNESIA").
+-include("snmp_verbosity.hrl").
+
+-record(tab, {id}).
+
+
+%% ---------------------------------------------------------------
+%% open
+%%
+%% Open or create a mnesia table.
+%%
+%% Opts - A list of implementation dependent options
+%% mnesia_open_options() = [mnesia_open_option()]
+%% mnesia_open_option() = {action, keep | clear} |
+%% {nodes, [node()]}
+%%
+%% ---------------------------------------------------------------
+
+open(Name, RecName, Fields, Type, Opts) ->
+ ?vtrace("open ~p table ~p for record ~p",
+ [Type, Name, RecName]),
+ Action = get_action(Opts),
+ Nodes = get_nodes(Opts),
+ case table_exists(Name) of
+ true when (Action =:= keep) ->
+ ?vtrace("open table ~p - exist (keep)", [Name]),
+ {ok, #tab{id = Name}};
+ true when (Action =:= clear) ->
+ ?vtrace("open table ~p - exist (clear)", [Name]),
+ F = fun() -> mnesia:clear_table(Name) end,
+ case mnesia:transaction(F) of
+ {aborted, Reason} ->
+ {error, {clear, Reason}};
+ {atomic, _} ->
+ {ok, #tab{id = Name}}
+ end;
+ false ->
+ ?vtrace("open table ~p - does not exist", [Name]),
+ Args = [{record_name, RecName},
+ {attributes, Fields},
+ {type, Type},
+ {disc_copies, Nodes}],
+ case mnesia:create_table(Name, Args) of
+ {atomic, ok} ->
+ ?vtrace("open table ~p - ok", [Name]),
+ {ok, #tab{id = Name}};
+ {aborted, Reason} ->
+ ?vinfo("open table ~p - aborted"
+ "~n Reason: ~p", [Name, Reason]),
+ {error, {create, Reason}}
+ end
+ end.
+
+table_exists(Name) ->
+ case (catch mnesia:table_info(Name, type)) of
+ {'EXIT', _Reason} ->
+ false;
+ _ ->
+ true
+ end.
+
+
+%% ---------------------------------------------------------------
+%% close
+%%
+%% Close the mib-storage table.
+%% This does nothing in the mnesia case.
+%% ---------------------------------------------------------------
+
+close(_) ->
+ ?vtrace("close mib-storage - ignore",[]),
+ ok.
+
+
+%% ---------------------------------------------------------------
+%% read
+%%
+%% Retrieve a record from the mib-storage table.
+%% ---------------------------------------------------------------
+
+read(#tab{id = ID}, Key) ->
+ ?vtrace("read (dirty) from database ~p: ~p", [ID, Key]),
+ case (catch mnesia:dirty_read(ID, Key)) of
+ [Rec|_] -> {value,Rec};
+ _ -> false
+ end.
+
+
+%% ---------------------------------------------------------------
+%% write
+%%
+%% Write a record to the mib-storage table.
+%% ---------------------------------------------------------------
+
+write(#tab{id = ID}, Rec) ->
+ ?vtrace("write to database ~p", [ID]),
+ F = fun() -> mnesia:write(ID, Rec, write) end,
+ case mnesia:transaction(F) of
+ {aborted, _Reason} = ABORTED ->
+ {error, ABORTED};
+ {atomic,_} ->
+ ok
+ end.
+
+
+%% ---------------------------------------------------------------
+%% delete
+%%
+%% Delete the mib-storage table.
+%% ---------------------------------------------------------------
+
+delete(#tab{id = ID}) ->
+ ?vtrace("delete database: ~p", [ID]),
+ mnesia:delete_table(ID).
+
+
+%% ---------------------------------------------------------------
+%% delete
+%%
+%% Delete a record from the mib-storage table.
+%% ---------------------------------------------------------------
+
+delete(#tab{id = ID}, Key) ->
+ ?vtrace("delete from database ~p: ~p", [ID, Key]),
+ F = fun() -> mnesia:delete(ID, Key, write) end,
+ case mnesia:transaction(F) of
+ {aborted, _Reason} = ABORTED ->
+ {error, ABORTED};
+ {atomic, _} ->
+ ok
+ end.
+
+
+%% ---------------------------------------------------------------
+%% match_object
+%%
+%% Search the mib-storage table for records witch matches
+%% the pattern.
+%% ---------------------------------------------------------------
+
+match_object(#tab{id = ID}, Pattern) ->
+ ?vtrace("match_object in ~p of ~p", [ID, Pattern]),
+ F = fun() -> mnesia:match_object(ID, Pattern, read) end,
+ case mnesia:transaction(F) of
+ {aborted, _Reason} = ABORTED ->
+ {error, ABORTED};
+ {atomic, Rs} ->
+ Rs
+ end.
+
+
+%% ---------------------------------------------------------------
+%% match_delete
+%%
+%% Search the mib-storage table for records witch matches
+%% the pattern and deletes them from the table.
+%% ---------------------------------------------------------------
+
+match_delete(#tab{id = ID}, Pattern) ->
+ ?vtrace("match_delete in ~p with pattern ~p", [ID, Pattern]),
+ F = fun() ->
+ Recs = mnesia:match_object(ID, Pattern, read),
+ lists:foreach(fun(Rec) ->
+ mnesia:delete_object(ID, Rec, write)
+ end, Recs),
+ Recs
+ end,
+ case mnesia:transaction(F) of
+ {aborted, _Reason} = ABORTED ->
+ {error, ABORTED};
+ {atomic, Rs} ->
+ Rs
+ end.
+
+
+%% ---------------------------------------------------------------
+%% tab2list
+%%
+%% Return all records in the mib-storage table in the form of
+%% a list.
+%% ---------------------------------------------------------------
+
+tab2list(#tab{id = ID} = Tab) ->
+ ?vtrace("tab2list -> list of ~p", [ID]),
+ match_object(Tab, mnesia:table_info(ID, wild_pattern)).
+
+
+%% ---------------------------------------------------------------
+%% info
+%%
+%% Retrieve implementation dependent mib-storage table
+%% information.
+%% ---------------------------------------------------------------
+
+info(#tab{id = ID}) ->
+ case (catch mnesia:table_info(ID, all)) of
+ Info when is_list(Info) ->
+ Info;
+ {'EXIT', {aborted, Reason}} ->
+ {error, Reason}
+ end.
+
+
+info(#tab{id = ID}, Item) ->
+ mnesia:table_info(ID, Item).
+
+
+%% ---------------------------------------------------------------
+%% sync
+%%
+%% Ignore
+%% ---------------------------------------------------------------
+
+sync(_) ->
+ ok.
+
+
+%% ---------------------------------------------------------------
+%% backup
+%%
+%% Ignore. Mnesia handles its own backups.
+%% ---------------------------------------------------------------
+
+backup(_, _) ->
+ ok.
+
+
+%%----------------------------------------------------------------------
+
+get_action(Opts) ->
+ snmp_misc:get_option(action, Opts, keep).
+
+get_nodes(Opts) ->
+ case snmp_misc:get_option(nodes, Opts, erlang:nodes()) of
+ [] ->
+ [node()];
+ Nodes when is_list(Nodes) ->
+ Nodes;
+ all ->
+ erlang:nodes();
+ visible ->
+ erlang:nodes(visible);
+ connected ->
+ erlang:nodes(connected);
+ db_nodes ->
+ try mnesia:system_info(db_nodes) of
+ DbNodes when is_list(DbNodes) ->
+ DbNodes;
+ _ ->
+ erlang:nodes()
+ catch
+ _:_ ->
+ erlang:nodes()
+ end
+ end.
+
+%% user_err(F, A) ->
+%% snmpa_error:user_err(F, A).
diff --git a/lib/snmp/src/agent/snmpa_supervisor.erl b/lib/snmp/src/agent/snmpa_supervisor.erl
index 886fd074bc..aebcdbaa84 100644
--- a/lib/snmp/src/agent/snmpa_supervisor.erl
+++ b/lib/snmp/src/agent/snmpa_supervisor.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -224,26 +224,101 @@ init([AgentType, Opts]) ->
ets:insert(snmp_agent_table, {error_report_mod, ErrorReportMod}),
%% -- mib storage --
+ %% MibStorage has only one mandatory part: module
+ %% Everything else is module dependent and therefor
+ %% put in a special option: options
MibStorage =
- case get_opt(mib_storage, Opts, ets) of
+ case get_opt(mib_storage, Opts, [{module, snmpa_mib_storage_ets}]) of
+
+ %% --- ETS wrappers ---
+
+ ets ->
+ [{module, snmpa_mib_storage_ets}];
+ {ets, default} ->
+ [{module, snmpa_mib_storage_ets},
+ {options, [{dir, filename:join([DbDir])},
+ {action, keep}]}];
+ {ets, Dir} when is_list(Dir) ->
+ [{module, snmpa_mib_storage_ets},
+ {options, [{dir, filename:join([Dir])},
+ {action, keep}]}];
+ {ets, default, Action} when ((Action =:= keep) orelse
+ (Action =:= clear)) ->
+ [{module, snmpa_mib_storage_ets},
+ {options, [{dir, filename:join([DbDir])},
+ {action, Action}]}];
+ {ets, Dir, Action} when is_list(Dir) andalso
+ ((Action =:= keep) orelse
+ (Action =:= clear)) ->
+ [{module, snmpa_mib_storage_ets},
+ {options, [{dir, filename:join([Dir])},
+ {action, Action}]}];
+
+ %% --- DETS wrappers ---
+
dets ->
- {dets, DbDir};
+ [{module, snmpa_mib_storage_dets},
+ {options, [{dir, filename:join([DbDir])},
+ {action, keep}]}];
{dets, default} ->
- {dets, DbDir};
- {dets, default, Act} ->
- {dets, DbDir, Act};
- {ets, default} ->
- {ets, DbDir};
+ [{module, snmpa_mib_storage_dets},
+ {options, [{dir, filename:join([DbDir])},
+ {action, keep}]}];
+ {dets, default, Action} when ((Action =:= keep) orelse
+ (Action =:= clear)) ->
+ [{module, snmpa_mib_storage_dets},
+ {options, [{dir, filename:join([DbDir])},
+ {action, Action}]}];
+ {dets, Dir, Action} when is_list(Dir) andalso
+ ((Action =:= keep) orelse
+ (Action =:= clear)) ->
+ [{module, snmpa_mib_storage_dets},
+ {options, [{dir, filename:join([Dir])},
+ {action, Action}]}];
+
+ %% --- Mnesia wrappers ---
+
mnesia ->
- {mnesia, erlang:nodes()};
- {mnesia, visible} ->
- {mnesia, erlang:nodes(visible)};
- {mnesia, connected} ->
- {mnesia, erlang:nodes(connected)};
- Other ->
+ [{module, snmpa_mib_storage_mnesia},
+ {options, [{nodes, erlang:nodes()},
+ {action, keep}]}];
+ {mnesia, Nodes0} ->
+ Nodes =
+ if
+ Nodes0 =:= visible ->
+ erlang:nodes(visible);
+ Nodes0 =:= connected ->
+ erlang:nodes(connected);
+ Nodes0 =:= [] ->
+ [node()];
+ true ->
+ Nodes0
+ end,
+ [{module, snmpa_mib_storage_mnesia},
+ {options, [{nodes, Nodes},
+ {action, keep}]}];
+ {mnesia, Nodes0, Action} when ((Action =:= keep) orelse
+ (Action =:= clear)) ->
+ Nodes =
+ if
+ Nodes0 =:= visible ->
+ erlang:nodes(visible);
+ Nodes0 =:= connected ->
+ erlang:nodes(connected);
+ Nodes0 =:= [] ->
+ [node()];
+ true ->
+ Nodes0
+ end,
+ [{module, snmpa_mib_storage_mnesia},
+ {options, [{nodes, Nodes},
+ {action, Action}]}];
+
+ Other when is_list(Other) ->
Other
end,
- ?vdebug("[agent table] store mib storage: ~w",[MibStorage]),
+
+ ?vdebug("[agent table] store mib storage: ~w", [MibStorage]),
ets:insert(snmp_agent_table, {mib_storage, MibStorage}),
%% -- Agent mib storage --
@@ -388,7 +463,7 @@ init([AgentType, Opts]) ->
AgentSpec =
worker_spec(snmpa_agent,
- [Prio,snmp_master_agent,none,Ref,AgentOpts],
+ [Prio, snmp_master_agent, none, Ref, AgentOpts],
Restart, 15000),
AgentSupSpec =
sup_spec(snmpa_agent_sup, [AgentSpec],
diff --git a/lib/snmp/src/agent/snmpa_symbolic_store.erl b/lib/snmp/src/agent/snmpa_symbolic_store.erl
index 6c58ffde41..00178f4bcd 100644
--- a/lib/snmp/src/agent/snmpa_symbolic_store.erl
+++ b/lib/snmp/src/agent/snmpa_symbolic_store.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -78,7 +78,7 @@
gen_server:start_link({local, ?SERVER}, ?MODULE, [Prio, Opts], [])).
-endif.
--record(state, {db, backup}).
+-record(state, {module, db, backup}).
-record(symbol, {key, mib_name, info}).
@@ -112,6 +112,9 @@ backup(BackupDir) ->
get_db() ->
call(get_db).
+which_module() ->
+ call(which_module).
+
%%----------------------------------------------------------------------
%% Returns: {value, Oid} | false
@@ -202,49 +205,63 @@ verbosity(Verbosity) ->
%%----------------------------------------------------------------------
%% DB access (read) functions: Returns: {value, Oid} | false
%%----------------------------------------------------------------------
+
aliasname_to_oid(Db, Aliasname) ->
- case snmpa_general_db:read(Db, {alias, Aliasname}) of
+ Mod = which_module(),
+ aliasname_to_oid(Mod, Db, Aliasname).
+
+aliasname_to_oid(Mod, Db, Aliasname) ->
+ case Mod:read(Db, {alias, Aliasname}) of
{value,#symbol{info = {Oid, _Enums}}} -> {value, Oid};
false -> false
end.
-oid_to_aliasname(Db,Oid) ->
- case snmpa_general_db:read(Db, {oid, Oid}) of
+oid_to_aliasname(Db, Oid) ->
+ Mod = which_module(),
+ oid_to_aliasname(Mod, Db, Oid).
+
+oid_to_aliasname(Mod, Db, Oid) ->
+ case Mod:read(Db, {oid, Oid}) of
{value,#symbol{info = Aliasname}} -> {value, Aliasname};
_ -> false
end.
-which_notifications(Db) ->
+which_notifications(Mod, Db) ->
Pattern = #symbol{key = {trap, '_'}, _ = '_'},
- Symbols = snmpa_general_db:match_object(Db, Pattern),
+ Symbols = Mod:match_object(Db, Pattern),
[{Name, Mib, Rec} || #symbol{key = {trap, Name},
mib_name = Mib,
info = Rec} <- Symbols].
-which_aliasnames(Db) ->
+which_aliasnames(Mod, Db) ->
Pattern = #symbol{key = {alias, '_'}, _ = '_'},
- Symbols = snmpa_general_db:match_object(Db, Pattern),
+ Symbols = Mod:match_object(Db, Pattern),
[Alias || #symbol{key = {alias, Alias}} <- Symbols].
-which_tables(Db) ->
+which_tables(Mod, Db) ->
Pattern = #symbol{key = {table_info, '_'}, _ = '_'},
- Symbols = snmpa_general_db:match_object(Db, Pattern),
+ Symbols = Mod:match_object(Db, Pattern),
[Name || #symbol{key = {table_info, Name}} <- Symbols].
-which_variables(Db) ->
+which_variables(Mod, Db) ->
Pattern = #symbol{key = {variable_info, '_'}, _ = '_'},
- Symbols = snmpa_general_db:match_object(Db, Pattern),
+ Symbols = Mod:match_object(Db, Pattern),
[Name || #symbol{key = {variable_info, Name}} <- Symbols].
-int_to_enum(Db,TypeOrObjName,Int) ->
- case snmpa_general_db:read(Db, {alias, TypeOrObjName}) of
+
+int_to_enum(Db, TypeOrObjName, Int) ->
+ Mod = which_module(),
+ int_to_enum(Mod, Db, TypeOrObjName, Int).
+
+int_to_enum(Mod, Db, TypeOrObjName, Int) ->
+ case Mod:read(Db, {alias, TypeOrObjName}) of
{value,#symbol{info = {_Oid, Enums}}} ->
case lists:keysearch(Int, 2, Enums) of
{value, {Enum, _Int}} -> {value, Enum};
false -> false
end;
false -> % Not an Aliasname ->
- case snmpa_general_db:read(Db, {type, TypeOrObjName}) of
+ case Mod:read(Db, {type, TypeOrObjName}) of
{value,#symbol{info = Enums}} ->
case lists:keysearch(Int, 2, Enums) of
{value, {Enum, _Int}} -> {value, Enum};
@@ -256,14 +273,18 @@ int_to_enum(Db,TypeOrObjName,Int) ->
end.
enum_to_int(Db, TypeOrObjName, Enum) ->
- case snmpa_general_db:read(Db, {alias, TypeOrObjName}) of
+ Mod = which_module(),
+ enum_to_int(Mod, Db, TypeOrObjName, Enum).
+
+enum_to_int(Mod, Db, TypeOrObjName, Enum) ->
+ case Mod:read(Db, {alias, TypeOrObjName}) of
{value,#symbol{info = {_Oid, Enums}}} ->
case lists:keysearch(Enum, 1, Enums) of
{value, {_Enum, Int}} -> {value, Int};
false -> false
end;
false -> % Not an Aliasname
- case snmpa_general_db:read(Db, {type, TypeOrObjName}) of
+ case Mod:read(Db, {type, TypeOrObjName}) of
{value,#symbol{info = Enums}} ->
case lists:keysearch(Enum, 1, Enums) of
{value, {_Enum, Int}} -> {value, Int};
@@ -278,8 +299,9 @@ enum_to_int(Db, TypeOrObjName, Enum) ->
%%----------------------------------------------------------------------
%% DB access (read) functions: Returns: false|{value, Info}
%%----------------------------------------------------------------------
-table_info(Db,TableName) ->
- case snmpa_general_db:read(Db, {table_info, TableName}) of
+
+table_info(Mod, Db, TableName) ->
+ case Mod:read(Db, {table_info, TableName}) of
{value,#symbol{info = Info}} -> {value, Info};
false -> false
end.
@@ -288,8 +310,8 @@ table_info(Db,TableName) ->
%%----------------------------------------------------------------------
%% DB access (read) functions: Returns: false|{value, Info}
%%----------------------------------------------------------------------
-variable_info(Db,VariableName) ->
- case snmpa_general_db:read(Db, {variable_info, VariableName}) of
+variable_info(Mod, Db, VariableName) ->
+ case Mod:read(Db, {variable_info, VariableName}) of
{value,#symbol{info = Info}} -> {value, Info};
false -> false
end.
@@ -299,7 +321,7 @@ variable_info(Db,VariableName) ->
%% Implementation
%%----------------------------------------------------------------------
-init([Prio,Opts]) ->
+init([Prio, Opts]) ->
?d("init -> entry with"
"~n Prio: ~p"
"~n Opts: ~p", [Prio,Opts]),
@@ -317,102 +339,125 @@ do_init(Prio, Opts) ->
put(sname,ss),
put(verbosity,get_verbosity(Opts)),
?vlog("starting",[]),
- Storage = get_mib_storage(Opts),
+ MibStorage = get_mib_storage(Opts),
+ Mod = snmp_misc:get_option(module, MibStorage),
+ MsOpts = snmp_misc:get_option(options, MibStorage, []),
+
%% type = bag solves the problem with import and multiple
%% object/type definitions.
- Db = snmpa_general_db:open(Storage, snmpa_symbolic_store,
- symbol, record_info(fields,symbol), bag),
- S = #state{db = Db},
- ?vdebug("started",[]),
- {ok, S}.
+ case Mod:open(?MODULE, symbol, record_info(fields, symbol), bag, MsOpts) of
+ {ok, Db} ->
+ S = #state{module = Mod, db = Db},
+ ?vdebug("started",[]),
+ {ok, S};
+ {error, _} = ERROR ->
+ ERROR
+ end.
handle_call(get_db, _From, #state{db = DB} = S) ->
?vlog("get db",[]),
{reply, DB, S};
-handle_call({table_info, TableName}, _From, #state{db = DB} = S) ->
+handle_call(which_module, _From, #state{module = Mod} = S) ->
+ ?vlog("which module",[]),
+ {reply, Mod, S};
+
+handle_call({table_info, TableName}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("table info: ~p",[TableName]),
- Res = table_info(DB, TableName),
+ Res = table_info(Mod, DB, TableName),
?vdebug("table info result: ~p",[Res]),
{reply, Res, S};
-handle_call({variable_info, VariableName}, _From, #state{db = DB} = S) ->
+handle_call({variable_info, VariableName}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("variable info: ~p",[VariableName]),
- Res = variable_info(DB, VariableName),
+ Res = variable_info(Mod, DB, VariableName),
?vdebug("variable info result: ~p",[Res]),
{reply, Res, S};
-handle_call({aliasname_to_oid, Aliasname}, _From, #state{db = DB} = S) ->
+handle_call({aliasname_to_oid, Aliasname}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("aliasname to oid: ~p",[Aliasname]),
- Res = aliasname_to_oid(DB,Aliasname),
+ Res = aliasname_to_oid(Mod, DB, Aliasname),
?vdebug("aliasname to oid result: ~p",[Res]),
{reply, Res, S};
-handle_call({oid_to_aliasname, Oid}, _From, #state{db = DB} = S) ->
+handle_call({oid_to_aliasname, Oid}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("oid to aliasname: ~p",[Oid]),
- Res = oid_to_aliasname(DB, Oid),
+ Res = oid_to_aliasname(Mod, DB, Oid),
?vdebug("oid to aliasname result: ~p",[Res]),
{reply, Res, S};
-handle_call(which_aliasnames, _From, #state{db = DB} = S) ->
+handle_call(which_aliasnames, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("which aliasnames",[]),
- Res = which_aliasnames(DB),
+ Res = which_aliasnames(Mod, DB),
?vdebug("which aliasnames: ~p",[Res]),
{reply, Res, S};
-handle_call(which_tables, _From, #state{db = DB} = S) ->
+handle_call(which_tables, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("which tables",[]),
- Res = which_tables(DB),
+ Res = which_tables(Mod, DB),
?vdebug("which tables: ~p",[Res]),
{reply, Res, S};
-handle_call(which_variables, _From, #state{db = DB} = S) ->
+handle_call(which_variables, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("which variables",[]),
- Res = which_variables(DB),
+ Res = which_variables(Mod, DB),
?vdebug("which variables: ~p",[Res]),
{reply, Res, S};
-handle_call({enum_to_int, TypeOrObjName, Enum}, _From, #state{db = DB} = S) ->
+handle_call({enum_to_int, TypeOrObjName, Enum}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("enum to int: ~p, ~p",[TypeOrObjName,Enum]),
- Res = enum_to_int(DB, TypeOrObjName, Enum),
+ Res = enum_to_int(Mod, DB, TypeOrObjName, Enum),
?vdebug("enum to int result: ~p",[Res]),
{reply, Res, S};
-handle_call({int_to_enum, TypeOrObjName, Int}, _From, #state{db = DB} = S) ->
+handle_call({int_to_enum, TypeOrObjName, Int}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("int to enum: ~p, ~p",[TypeOrObjName,Int]),
- Res = int_to_enum(DB, TypeOrObjName, Int),
+ Res = int_to_enum(Mod, DB, TypeOrObjName, Int),
?vdebug("int to enum result: ~p",[Res]),
{reply, Res, S};
-handle_call({set_notification, MibName, Trap}, _From, #state{db = DB} = S) ->
+handle_call({set_notification, MibName, Trap}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("set notification:"
"~n ~p~n ~p", [MibName,Trap]),
- set_notif(DB, MibName, Trap),
+ set_notif(Mod, DB, MibName, Trap),
{reply, true, S};
-handle_call({delete_notifications, MibName}, _From, #state{db = DB} = S) ->
+handle_call({delete_notifications, MibName}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("delete notification: ~p",[MibName]),
- delete_notif(DB, MibName),
+ delete_notif(Mod, DB, MibName),
{reply, true, S};
-handle_call(which_notifications, _From, #state{db = DB} = S) ->
+handle_call(which_notifications, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("which notifications", []),
- Reply = which_notifications(DB),
+ Reply = which_notifications(Mod, DB),
{reply, Reply, S};
-handle_call({get_notification, Key}, _From, #state{db = DB} = S) ->
+handle_call({get_notification, Key}, _From,
+ #state{module = Mod, db = DB} = S) ->
?vlog("get notification: ~p",[Key]),
- Res = get_notif(DB, Key),
+ Res = get_notif(Mod, DB, Key),
?vdebug("get notification result: ~p",[Res]),
{reply, Res, S};
-handle_call(info, _From, #state{db = DB} = S) ->
+handle_call(info, _From, #state{module = Mod, db = DB} = S) ->
?vlog("info",[]),
- Info = get_info(DB),
+ Info = get_info(Mod, DB),
{reply, Info, S};
-handle_call({backup, BackupDir}, From, #state{db = DB} = S) ->
+handle_call({backup, BackupDir}, From, #state{module = Mod, db = DB} = S) ->
?vlog("info to ~p",[BackupDir]),
Pid = self(),
V = get(verbosity),
@@ -424,7 +469,7 @@ handle_call({backup, BackupDir}, From, #state{db = DB} = S) ->
put(sname, albs),
put(verbosity, V),
Dir = filename:join([BackupDir]),
- Reply = snmpa_general_db:backup(DB, Dir),
+ Reply = Mod:backup(DB, Dir),
Pid ! {backup_done, Reply},
unlink(Pid)
end),
@@ -446,7 +491,7 @@ handle_call(Req, _From, S) ->
{reply, Reply, S}.
-handle_cast({add_types, MibName, Types}, #state{db = DB} = S) ->
+handle_cast({add_types, MibName, Types}, #state{module = Mod, db = DB} = S) ->
?vlog("add types for ~p:",[MibName]),
F = fun(#asn1_type{assocList = Alist, aliasname = Name}) ->
case snmp_misc:assq(enums, Alist) of
@@ -455,20 +500,21 @@ handle_cast({add_types, MibName, Types}, #state{db = DB} = S) ->
Rec = #symbol{key = {type, Name},
mib_name = MibName,
info = Es},
- snmpa_general_db:write(DB, Rec);
+ Mod:write(DB, Rec);
false -> done
end
end,
lists:foreach(F, Types),
{noreply, S};
-handle_cast({delete_types, MibName}, #state{db = DB} = S) ->
+handle_cast({delete_types, MibName}, #state{module = Mod, db = DB} = S) ->
?vlog("delete types: ~p",[MibName]),
Pattern = #symbol{key = {type, '_'}, mib_name = MibName, info = '_'},
- snmpa_general_db:match_delete(DB, Pattern),
+ Mod:match_delete(DB, Pattern),
{noreply, S};
-handle_cast({add_aliasnames, MibName, MEs}, #state{db = DB} = S) ->
+handle_cast({add_aliasnames, MibName, MEs},
+ #state{module = Mod, db = DB} = S) ->
?vlog("add aliasnames for ~p:",[MibName]),
F = fun(#me{aliasname = AN, oid = Oid, asn1_type = AT}) ->
Enums =
@@ -480,20 +526,21 @@ handle_cast({add_aliasnames, MibName, MEs}, #state{db = DB} = S) ->
end;
_ -> []
end,
- write_alias(AN, DB, Enums, MibName, Oid)
+ write_alias(Mod, AN, DB, Enums, MibName, Oid)
end,
lists:foreach(F, MEs),
{noreply, S};
-handle_cast({delete_aliasname, MibName}, #state{db = DB} = S) ->
+handle_cast({delete_aliasname, MibName}, #state{module = Mod, db = DB} = S) ->
?vlog("delete aliasname: ~p",[MibName]),
Pattern1 = #symbol{key = {alias, '_'}, mib_name = MibName, info = '_'},
- snmpa_general_db:match_delete(DB, Pattern1),
+ Mod:match_delete(DB, Pattern1),
Pattern2 = #symbol{key = {oid, '_'}, mib_name = MibName, info = '_'},
- snmpa_general_db:match_delete(DB, Pattern2),
+ Mod:match_delete(DB, Pattern2),
{noreply, S};
-handle_cast({add_table_infos, MibName, TableInfos}, #state{db = DB} = S) ->
+handle_cast({add_table_infos, MibName, TableInfos},
+ #state{module = Mod, db = DB} = S) ->
?vlog("add table infos for ~p:",[MibName]),
F = fun({Name, TableInfo}) ->
?vlog("add table info~n ~p -> ~p",
@@ -501,19 +548,20 @@ handle_cast({add_table_infos, MibName, TableInfos}, #state{db = DB} = S) ->
Rec = #symbol{key = {table_info, Name},
mib_name = MibName,
info = TableInfo},
- snmpa_general_db:write(DB, Rec)
+ Mod:write(DB, Rec)
end,
lists:foreach(F, TableInfos),
{noreply, S};
-handle_cast({delete_table_infos, MibName}, #state{db = DB} = S) ->
+handle_cast({delete_table_infos, MibName},
+ #state{module = Mod, db = DB} = S) ->
?vlog("delete table infos: ~p",[MibName]),
Pattern = #symbol{key = {table_info, '_'}, mib_name = MibName, info = '_'},
- snmpa_general_db:match_delete(DB, Pattern),
+ Mod:match_delete(DB, Pattern),
{noreply, S};
handle_cast({add_variable_infos, MibName, VariableInfos},
- #state{db = DB} = S) ->
+ #state{module = Mod, db = DB} = S) ->
?vlog("add variable infos for ~p:",[MibName]),
F = fun({Name, VariableInfo}) ->
?vlog("add variable info~n ~p -> ~p",
@@ -521,17 +569,18 @@ handle_cast({add_variable_infos, MibName, VariableInfos},
Rec = #symbol{key = {variable_info, Name},
mib_name = MibName,
info = VariableInfo},
- snmpa_general_db:write(DB, Rec)
+ Mod:write(DB, Rec)
end,
lists:foreach(F, VariableInfos),
{noreply, S};
-handle_cast({delete_variable_infos, MibName}, #state{db = DB} = S) ->
+handle_cast({delete_variable_infos, MibName},
+ #state{module = Mod, db = DB} = S) ->
?vlog("delete variable infos: ~p",[MibName]),
Pattern = #symbol{key = {variable_info,'_'},
mib_name = MibName,
info = '_'},
- snmpa_general_db:match_delete(DB, Pattern),
+ Mod:match_delete(DB, Pattern),
{noreply, S};
handle_cast({verbosity,Verbosity}, State) ->
@@ -565,9 +614,9 @@ handle_info(Info, S) ->
{noreply, S}.
-terminate(Reason, S) ->
- ?vlog("terminate: ~p",[Reason]),
- snmpa_general_db:close(S#state.db).
+terminate(Reason, #state{module = Mod, db = DB}) ->
+ ?vlog("terminate: ~p", [Reason]),
+ Mod:close(DB).
%%----------------------------------------------------------
@@ -575,18 +624,18 @@ terminate(Reason, S) ->
%%----------------------------------------------------------
% downgrade
-code_change({down, _Vsn}, #state{db = DB, backup = B}, downgrade_to_pre_4_7) ->
- ?d("code_change(down) -> entry", []),
- stop_backup_server(B),
- S = {state, DB},
- {ok, S};
-
-% upgrade
-code_change(_Vsn, S, upgrade_from_pre_4_7) ->
- ?d("code_change(up) -> entry", []),
- {state, DB} = S,
- S1 = #state{db = DB},
- {ok, S1};
+%% code_change({down, _Vsn}, #state{db = DB, backup = B}, downgrade_to_pre_4_7) ->
+%% ?d("code_change(down) -> entry", []),
+%% stop_backup_server(B),
+%% S = {state, DB},
+%% {ok, S};
+
+%% % upgrade
+%% code_change(_Vsn, S, upgrade_from_pre_4_7) ->
+%% ?d("code_change(up) -> entry", []),
+%% {state, DB} = S,
+%% S1 = #state{db = DB},
+%% {ok, S1};
code_change(_Vsn, S, _Extra) ->
?d("code_change -> entry [do nothing]", []),
@@ -609,13 +658,13 @@ stop_backup_server({Pid, _}) when is_pid(Pid) ->
%%-----------------------------------------------------------------
%% Returns: {value, Value} | undefined
%%-----------------------------------------------------------------
-get_notif(Db, Key) ->
- case snmpa_general_db:read(Db, {trap, Key}) of
+get_notif(Mod, Db, Key) ->
+ case Mod:read(Db, {trap, Key}) of
{value,#symbol{info = Value}} -> {value, Value};
false -> undefined
end.
-set_notif(Db, MibName, Trap) when is_record(Trap, trap) ->
+set_notif(Mod, Db, MibName, Trap) when is_record(Trap, trap) ->
#trap{trapname = Name} = Trap,
Rec = #symbol{key = {trap, Name}, mib_name = MibName, info = Trap},
%% convert old v1 trap to oid
@@ -625,40 +674,41 @@ set_notif(Db, MibName, Trap) when is_record(Trap, trap) ->
Oid0 ->
Oid0 ++ [0, Trap#trap.specificcode]
end,
- write_alias(Name, Db, MibName, Oid),
- snmpa_general_db:write(Db, Rec);
-set_notif(Db, MibName, Trap) ->
+ write_alias(Mod, Name, Db, MibName, Oid),
+ Mod:write(Db, Rec);
+set_notif(Mod, Db, MibName, Trap) ->
#notification{trapname = Name, oid = Oid} = Trap,
Rec = #symbol{key = {trap, Name}, mib_name = MibName, info = Trap},
- write_alias(Name, Db, MibName, Oid),
- snmpa_general_db:write(Db, Rec).
+ write_alias(Mod, Name, Db, MibName, Oid),
+ Mod:write(Db, Rec).
-delete_notif(Db, MibName) ->
+delete_notif(Mod, Db, MibName) ->
Pattern = #symbol{key = {trap, '_'}, mib_name = MibName, info = '_'},
- snmpa_general_db:match_delete(Db, Pattern).
+ Mod:match_delete(Db, Pattern).
-write_alias(AN, DB, MibName, Oid) ->
- write_alias(AN, DB, [], MibName, Oid).
+write_alias(Mod, AN, DB, MibName, Oid) ->
+ write_alias(Mod, AN, DB, [], MibName, Oid).
-write_alias(AN, DB, Enums, MibName, Oid) ->
+write_alias(Mod, AN, DB, Enums, MibName, Oid) ->
?vlog("add alias~n ~p -> {~p,~p}",[AN, Oid, Enums]),
Rec1 = #symbol{key = {alias, AN},
mib_name = MibName,
info = {Oid,Enums}},
- snmpa_general_db:write(DB, Rec1),
+ Mod:write(DB, Rec1),
?vlog("add oid~n ~p -> ~p",[Oid, AN]),
Rec2 = #symbol{key = {oid, Oid},
mib_name = MibName,
info = AN},
- snmpa_general_db:write(DB, Rec2).
+ Mod:write(DB, Rec2).
+
%% -------------------------------------
-get_info(DB) ->
+get_info(Mod, DB) ->
ProcSize = proc_mem(self()),
- DbSz = tab_size(DB),
- [{process_memory, ProcSize}, {db_memory, DbSz}].
+ DbMemory = Mod:info(DB, memory),
+ [{process_memory, ProcSize}, {db_memory, DbMemory}].
proc_mem(P) when is_pid(P) ->
case (catch erlang:process_info(P, memory)) of
@@ -667,26 +717,15 @@ proc_mem(P) when is_pid(P) ->
_ ->
undefined
end.
-%% proc_mem(_) ->
-%% undefined.
-
-tab_size(DB) ->
- case (catch snmpa_general_db:info(DB, memory)) of
- Sz when is_integer(Sz) ->
- Sz;
- _ ->
- undefined
- end.
-
%% -------------------------------------
get_verbosity(L) ->
- snmp_misc:get_option(verbosity,L,?default_verbosity).
+ snmp_misc:get_option(verbosity, L, ?default_verbosity).
get_mib_storage(L) ->
- snmp_misc:get_option(mib_storage,L,ets).
+ snmp_misc:get_option(mib_storage, L).
%% -------------------------------------
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 23:07:03 +0000