aboutsummaryrefslogtreecommitdiffstats
path: root/lib/snmp/src/agent
diff options
context:
space:
mode:
Diffstat (limited to 'lib/snmp/src/agent')
-rw-r--r--lib/snmp/src/agent/snmp_view_based_acm_mib.erl29
-rw-r--r--lib/snmp/src/agent/snmpa_agent.erl16
-rw-r--r--lib/snmp/src/agent/snmpa_vacm.erl34
3 files changed, 53 insertions, 26 deletions
diff --git a/lib/snmp/src/agent/snmp_view_based_acm_mib.erl b/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
index 37f6dd3f26..2cee91b081 100644
--- a/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
+++ b/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2012. 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
@@ -203,18 +203,16 @@ init_sec2group_table([Row | T]) ->
init_sec2group_table(T);
init_sec2group_table([]) -> true.
-init_access_table([{GN, Prefix, Model, Level, Row} | T]) ->
-%% ?vtrace("init access table: "
-%% "~n GN: ~p"
-%% "~n Prefix: ~p"
-%% "~n Model: ~p"
-%% "~n Level: ~p"
-%% "~n Row: ~p",[GN, Prefix, Model, Level, Row]),
- Key = [length(GN) | GN] ++ [length(Prefix) | Prefix] ++ [Model, Level],
- snmpa_vacm:insert([{Key, Row}], false),
- init_access_table(T);
-init_access_table([]) ->
- snmpa_vacm:dump_table().
+make_access_key(GN, Prefix, Model, Level) ->
+ [length(GN) | GN] ++ [length(Prefix) | Prefix] ++ [Model, Level].
+
+make_access_entry({GN, Prefix, Model, Level, Row}) ->
+ Key = make_access_key(GN, Prefix, Model, Level),
+ {Key, Row}.
+
+init_access_table(TableData) ->
+ TableData2 = [make_access_entry(E) || E <- TableData],
+ snmpa_vacm:insert(TableData2, true).
init_view_table([Row | T]) ->
%% ?vtrace("init view table: "
@@ -276,10 +274,7 @@ add_access(GroupName, Prefix, SecModel, SecLevel, Match, RV, WV, NV) ->
Match, RV, WV, NV},
case (catch check_vacm(Access)) of
{ok, {vacmAccess, {GN, Pref, SM, SL, Row}}} ->
- Key1 = [length(GN) | GN],
- Key2 = [length(Pref) | Pref],
- Key3 = [SM, SL],
- Key = Key1 ++ Key2 ++ Key3,
+ Key = make_access_key(GN, Pref, SM, SL),
snmpa_vacm:insert([{Key, Row}], false),
snmpa_agent:invalidate_ca_cache(),
{ok, Key};
diff --git a/lib/snmp/src/agent/snmpa_agent.erl b/lib/snmp/src/agent/snmpa_agent.erl
index 46c634969d..d3eeca2290 100644
--- a/lib/snmp/src/agent/snmpa_agent.erl
+++ b/lib/snmp/src/agent/snmpa_agent.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. 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
@@ -934,6 +934,7 @@ handle_info({'EXIT', Pid, Reason}, S) ->
end,
{noreply, S}
end;
+
handle_info({'DOWN', Ref, process, Pid, {mibs_cache_reply, Reply}},
#state{mibs_cache_request = {Pid, Ref, From}} = S) ->
?vlog("reply from the mibs cache request handler (~p): ~n~p",
@@ -1283,27 +1284,27 @@ handle_call({me_of, Oid}, _From, S) ->
{reply, Reply, S};
handle_call(get_log_type, _From, S) ->
- ?vlog("get_log_type", []),
+ ?vlog("handle_call(get_log_type) -> entry with", []),
Reply = handle_get_log_type(S),
{reply, Reply, S};
handle_call({set_log_type, NewType}, _From, S) ->
- ?vlog("set_log_type -> "
+ ?vlog("handle_call(set_log_type) -> entry with"
"~n NewType: ~p", [NewType]),
Reply = handle_set_log_type(S, NewType),
{reply, Reply, S};
handle_call(get_request_limit, _From, S) ->
- ?vlog("get_request_limit", []),
+ ?vlog("handle_call(get_request_limit) -> entry with", []),
Reply = handle_get_request_limit(S),
{reply, Reply, S};
handle_call({set_request_limit, NewLimit}, _From, S) ->
- ?vlog("set_request_limit -> "
+ ?vlog("handle_call(set_request_limit) -> entry with"
"~n NewLimit: ~p", [NewLimit]),
Reply = handle_set_request_limit(S, NewLimit),
{reply, Reply, S};
-
+
handle_call(stop, _From, S) ->
{stop, normal, ok, S};
@@ -3859,6 +3860,7 @@ mapfoldl(F, Eas, Accu0, [Hd|Tail]) ->
{Accu2,[R|Rs]};
mapfoldl(_F, _Eas, Accu, []) -> {Accu,[]}.
+
%%-----------------------------------------------------------------
%% Runtime debugging of the agent.
%%-----------------------------------------------------------------
@@ -3983,7 +3985,7 @@ handle_set_request_limit(_, _) ->
{error, not_supported}.
-agent_info(#state{worker = W, set_worker = SW}) ->
+agent_info(#state{worker = W, set_worker = SW}) ->
case (catch get_agent_info(W, SW)) of
Info when is_list(Info) ->
Info;
diff --git a/lib/snmp/src/agent/snmpa_vacm.erl b/lib/snmp/src/agent/snmpa_vacm.erl
index 892dc265f1..2cbc11d280 100644
--- a/lib/snmp/src/agent/snmpa_vacm.erl
+++ b/lib/snmp/src/agent/snmpa_vacm.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2012. 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
@@ -266,9 +266,10 @@ dump_table(true) ->
dump_table(_) ->
ok.
+
dump_table() ->
[{_, FName}] = ets:lookup(snmp_agent_table, snmpa_vacm_file),
- TmpName = FName ++ ".tmp",
+ TmpName = unique_table_name(FName),
case ets:tab2file(snmpa_vacm, TmpName) of
ok ->
case file:rename(TmpName, FName) of
@@ -283,6 +284,35 @@ dump_table() ->
[FName, Reason])
end.
+%% This little thing is an attempt to create a "unique" filename
+%% in order to minimize the risk of two processes at the same
+%% time dumping the table.
+unique_table_name(Pre) ->
+ %% We want something that is guaranteed to be unique,
+ %% therefor we use erlang:now() instead of os:timestamp()
+ unique_table_name(Pre, erlang:now()).
+
+unique_table_name(Pre, {_A, _B, C} = Now) ->
+ {Date, Time} = calendar:now_to_datetime(Now),
+ {YYYY, MM, DD} = Date,
+ {Hour, Min, Sec} = Time,
+ FormatDate =
+ io_lib:format("~.4w~.2.0w~.2.0w_~.2.0w~.2.0w~.2.0w_~w",
+ [YYYY, MM, DD, Hour, Min, Sec, round(C/1000)]),
+ unique_table_name2(Pre, FormatDate).
+
+unique_table_name2(Pre, FormatedDate) ->
+ PidPart = unique_table_name_pid(),
+ lists:flatten(io_lib:format("~s.~s~s.tmp", [Pre, PidPart, FormatedDate])).
+
+unique_table_name_pid() ->
+ case string:tokens(pid_to_list(self()), [$<,$.,$>]) of
+ [A, B, C] ->
+ A ++ B ++ C ++ ".";
+ _ ->
+ ""
+ end.
+
%%-----------------------------------------------------------------
%% Alg.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 21:26:49 +0000