%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2005-2009. 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(snmp_agent_test_lib).
-export([
start_v1_agent/1, start_v1_agent/2,
start_v2_agent/1, start_v2_agent/2,
start_v3_agent/1, start_v3_agent/2,
start_bilingual_agent/1, start_bilingual_agent/2,
start_mt_agent/1, start_mt_agent/2,
stop_agent/1,
start_sup/0, stop_sup/2,
start_subagent/3, stop_subagent/1,
start_sub_sup/1, start_sub_sup/2,
start_node/1, stop_node/1,
load_master/1, load_master_std/1, unload_master/1,
loaded_mibs/0, unload_mibs/1,
get_req/2, get_next_req/1,
config/5,
delete_files/1,
copy_file/2,
update_usm/2,
update_usm_mgr/2, rewrite_usm_mgr/3, reset_usm_mgr/1,
update_community/2,
update_vacm/2,
write_community_conf/2,
write_target_addr_conf/2, write_target_addr_conf/4,
rewrite_target_addr_conf/2, reset_target_addr_conf/1,
write_target_params_conf/2, rewrite_target_params_conf/3,
reset_target_params_conf/1,
write_notify_conf/1, write_view_conf/1,
display_memory_usage/0,
init_all/1, finish_all/1,
init_case/1,
try_test/2, try_test/3, try_test/4,
expect/2, expect/3, expect/4, expect/6,
regs/0,
rpc/3
]).
%% Internal exports
-export([wait/5, run/4]).
-include_lib("kernel/include/file.hrl").
-include("test_server.hrl").
-include("snmp_test_lib.hrl").
-define(SNMP_USE_V3, true).
-include_lib("snmp/include/snmp_types.hrl").
-define(TRAP_UDP, 5000).
-define(v1_2(V1,V2),
case get(vsn) of
v1 -> V1;
_ -> V2
end).
-define(v1_2_3(V1,V2,V3),
case get(vsn) of
v1 -> V1;
v2 -> V2;
_ -> V3
end).
%%%-----------------------------------------------------------------
%%% The test case structure is as follows:
%%%
%%% init_all - starts mnesia,
%%%
%%% init_v1 - starts agent
%%% simple
%%% big - e.g. starts/stops subagent, load/unloads mibs
%%% init_mul
%%% mul_get
%%% mul_set
%%% <etc>
%%% finish_mul
%%% <etc>
%%% finish_v1
%%%
%%% init_v2 - starts agent
%%% finish_v2
%%%
%%% init_bilingual - starts agent
%%% finish_bilingual
%%%
%%% finish_all
%%%
%%% There is still one problem with these testsuites. If one test
%%% fails, it may not be possible to run some other cases, as it
%%% may have e.g. created some row or loaded some table, that it
%%% didn't undo (since it failed).
%%%-----------------------------------------------------------------
init_all(Config0) when is_list(Config0) ->
?LOG("init_all -> entry with"
"~n Config0: ~p",[Config0]),
%% --
%% Fix config:
%%
DataDir0 = ?config(data_dir, Config0),
DataDir1 = filename:split(filename:absname(DataDir0)),
[_|DataDir2] = lists:reverse(DataDir1),
DataDir3 = filename:join(lists:reverse(DataDir2) ++ [?snmp_test_data]),
Config1 = lists:keydelete(data_dir, 1, Config0),
Config = [{data_dir, DataDir3 ++ "/"}|Config1],
%% --
%% Start nodes
%%
?line {ok, SaNode} = start_node(snmp_sa),
?line {ok, MgrNode} = start_node(snmp_mgr),
%% --
%% Create necessary files
%%
PrivDir = ?config(priv_dir, Config),
?DBG("init_all -> PrivDir ~p", [PrivDir]),
TopDir = filename:join(PrivDir, snmp_agent_test),
case file:make_dir(TopDir) of
ok ->
ok;
{error, eexist} ->
ok;
Error ->
?FAIL({failed_creating_subsuite_top_dir, Error})
end,
DataDir = ?config(data_dir, Config),
?DBG("init_all -> DataDir ~p", [DataDir]),
?line ok = file:make_dir(MgrDir = filename:join(TopDir, "mgr_dir/")),
?DBG("init_all -> MgrDir ~p", [MgrDir]),
?line ok = file:make_dir(AgentDir = filename:join(TopDir, "agent_dir/")),
?DBG("init_all -> AgentDir ~p", [AgentDir]),
?line ok = file:make_dir(SaDir = filename:join(TopDir, "sa_dir/")),
?DBG("init_all -> SaDir ~p", [SaDir]),
%% --
%% Start and initiate mnesia
%%
?DBG("init_all -> load application mnesia", []),
?line ok = application:load(mnesia),
?DBG("init_all -> load application mnesia on node ~p", [SaNode]),
?line ok = rpc:call(SaNode, application, load, [mnesia]),
?DBG("init_all -> application mnesia: set_env dir",[]),
?line application_controller:set_env(mnesia, dir,
filename:join(TopDir, "Mnesia1")),
?DBG("init_all -> application mnesia: set_env dir on node ~p",[SaNode]),
?line rpc:call(SaNode, application_controller, set_env,
[mnesia, dir, filename:join(TopDir, "Mnesia2")]),
?DBG("init_all -> create mnesia schema",[]),
?line ok = mnesia:create_schema([SaNode, node()]),
?DBG("init_all -> start application mnesia",[]),
?line ok = application:start(mnesia),
?DBG("init_all -> start application mnesia on ~p",[SaNode]),
?line ok = rpc:call(SaNode, application, start, [mnesia]),
Ip = ?LOCALHOST(),
[{snmp_sa, SaNode},
{snmp_mgr, MgrNode},
{agent_dir, AgentDir ++ "/"},
{mgr_dir, MgrDir ++ "/"},
{sa_dir, SaDir ++ "/"},
{mib_dir, DataDir},
{ip, Ip} |
Config].
finish_all(Config) when is_list(Config) ->
SaNode = ?config(snmp_sa, Config),
MgrNode = ?config(snmp_mgr, Config),
stop_node(SaNode),
stop_node(MgrNode),
application:stop(mnesia).
%% --- This one *must* be run first in each case ---
init_case(Config) when is_list(Config) ->
?DBG("init_case -> entry with"
"~n Config: ~p", [Config]),
SaNode = ?config(snmp_sa, Config),
MgrNode = ?config(snmp_mgr, Config),
MasterNode = node(),
SaHost = ?HOSTNAME(SaNode),
MgrHost = ?HOSTNAME(MgrNode),
MasterHost = ?HOSTNAME(MasterNode),
{ok, MasterIP} = snmp_misc:ip(MasterHost),
{ok, MIP} = snmp_misc:ip(MgrHost),
{ok, SIP} = snmp_misc:ip(SaHost),
put(mgr_node, MgrNode),
put(sa_node, SaNode),
put(master_node, MasterNode),
put(sa_host, SaHost),
put(mgr_host, MgrHost),
put(master_host, MasterHost),
put(mip, tuple_to_list(MIP)),
put(masterip, tuple_to_list(MasterIP)),
put(sip, tuple_to_list(SIP)),
MibDir = ?config(mib_dir, Config),
put(mib_dir, MibDir),
StdM = filename:join(code:priv_dir(snmp), "mibs") ++ "/",
put(std_mib_dir, StdM),
MgrDir = ?config(mgr_dir, Config),
put(mgr_dir, MgrDir),
put(vsn, ?config(vsn, Config)),
?DBG("init_case -> exit with"
"~n MasterNode: ~p"
"~n SaNode: ~p"
"~n MgrNode: ~p"
"~n MibDir: ~p", [MasterNode, SaNode, MgrNode, MibDir]),
{SaNode, MgrNode, MibDir}.
%%%--------------------------------------------------
%%% Used to test the standard mib with our
%%% configuration.
%%%--------------------------------------------------
try_test(Mod, Func) ->
call(get(mgr_node), ?MODULE, run, [Mod, Func, [], []]).
try_test(Mod, Func, A) ->
call(get(mgr_node), ?MODULE, run, [Mod, Func, A, []]).
try_test(Mod, Func, A, Opts) ->
call(get(mgr_node), ?MODULE, run, [Mod, Func, A, Opts]).
call(N,M,F,A) ->
?DBG("call -> entry with~n"
" N: ~p~n"
" M: ~p~n"
" F: ~p~n"
" A: ~p~n"
" when~n"
" get(): ~p",
[N,M,F,A,get()]),
spawn(N, ?MODULE, wait, [self(),get(),M,F,A]),
receive
{done, {'EXIT', Rn}, Loc} ->
?DBG("call -> done with exit: "
"~n Rn: ~p"
"~n Loc: ~p", [Rn, Loc]),
put(test_server_loc, Loc),
exit(Rn);
{done, Ret, Zed} ->
?DBG("call -> done:"
"~n Ret: ~p"
"~n Zed: ~p", [Ret, Zed]),
Ret
end.
wait(From, Env, M, F, A) ->
?DBG("wait -> entry with"
"~n From: ~p"
"~n Env: ~p"
"~n M: ~p"
"~n F: ~p"
"~n A: ~p", [From, Env, M, F, A]),
lists:foreach(fun({K,V}) -> put(K,V) end, Env),
Rn = (catch apply(M, F, A)),
?DBG("wait -> Rn: ~n~p", [Rn]),
From ! {done, Rn, get(test_server_loc)},
exit(Rn).
run(Mod, Func, Args, Opts) ->
?DBG("run -> entry with"
"~n Mod: ~p"
"~n Func: ~p"
"~n Args: ~p"
"~n Opts: ~p", [Mod, Func, Args, Opts]),
M = get(mib_dir),
Dir = get(mgr_dir),
User = snmp_misc:get_option(user, Opts, "all-rights"),
SecLevel = snmp_misc:get_option(sec_level, Opts, noAuthNoPriv),
EngineID = snmp_misc:get_option(engine_id, Opts, "agentEngine"),
CtxEngineID = snmp_misc:get_option(context_engine_id, Opts, EngineID),
Community = snmp_misc:get_option(community, Opts, "all-rights"),
?DBG("run -> start crypto app",[]),
Crypto = case os:type() of
vxworks ->
no_crypto;
_ ->
?CRYPTO_START()
end,
?DBG("run -> Crypto: ~p", [Crypto]),
catch snmp_test_mgr:stop(), % If we had a running mgr from a failed case
StdM = filename:join(code:priv_dir(snmp), "mibs") ++ "/",
Vsn = get(vsn),
?DBG("run -> config:"
"~n M: ~p"
"~n Vsn: ~p"
"~n Dir: ~p"
"~n User: ~p"
"~n SecLevel: ~p"
"~n EngineID: ~p"
"~n CtxEngineID: ~p"
"~n Community: ~p"
"~n StdM: ~p",
[M,Vsn,Dir,User,SecLevel,EngineID,CtxEngineID,Community,StdM]),
case snmp_test_mgr:start([%% {agent, snmp_test_lib:hostname()},
{packet_server_debug,true},
{debug,true},
{agent, get(master_host)},
{agent_udp, 4000},
{trap_udp, 5000},
{recbuf,65535},
quiet,
Vsn,
{community, Community},
{user, User},
{sec_level, SecLevel},
{engine_id, EngineID},
{context_engine_id, CtxEngineID},
{dir, Dir},
{mibs, mibs(StdM, M)}]) of
{ok, _Pid} ->
case (catch apply(Mod, Func, Args)) of
{'EXIT', Reason} ->
catch snmp_test_mgr:stop(),
?FAIL({apply_failed, {Mod, Func, Args}, Reason});
Res ->
catch snmp_test_mgr:stop(),
Res
end;
Err ->
io:format("Error starting manager: ~p\n", [Err]),
catch snmp_test_mgr:stop(),
?line ?FAIL({mgr_start, Err})
end.
%% ---------------------------------------------------------------
%% --- ---
%% --- Start the agent ---
%% --- ---
%% ---------------------------------------------------------------
start_v1_agent(Config) when is_list(Config) ->
start_agent(Config, [v1]).
start_v1_agent(Config, Opts) when is_list(Config) andalso is_list(Opts) ->
start_agent(Config, [v1], Opts).
start_v2_agent(Config) when is_list(Config) ->
start_agent(Config, [v2]).
start_v2_agent(Config, Opts) when is_list(Config) andalso is_list(Opts) ->
start_agent(Config, [v2], Opts).
start_v3_agent(Config) when is_list(Config) ->
start_agent(Config, [v3]).
start_v3_agent(Config, Opts) when is_list(Config) andalso is_list(Opts) ->
start_agent(Config, [v3], Opts).
start_bilingual_agent(Config) when is_list(Config) ->
start_agent(Config, [v1,v2]).
start_bilingual_agent(Config, Opts) when is_list(Config) andalso is_list(Opts) ->
start_agent(Config, [v1,v2], Opts).
start_mt_agent(Config) when is_list(Config) ->
start_agent(Config, [v2], [{snmp_multi_threaded, true}]).
start_mt_agent(Config, Opts) when is_list(Config) andalso is_list(Opts) ->
start_agent(Config, [v2], [{snmp_multi_threaded, true}|Opts]).
start_agent(Config, Vsns) ->
start_agent(Config, Vsns, []).
start_agent(Config, Vsns, Opts) ->
?LOG("start_agent -> entry (~p) with"
"~n Config: ~p"
"~n Vsns: ~p"
"~n Opts: ~p",[node(), Config, Vsns, Opts]),
?line AgentDir = ?config(agent_dir, Config),
?line SaNode = ?config(snmp_sa, Config),
%% AgentConfig =
%% [{agent_type, master},
%% %% {multi_threaded, MultiT},
%% %% {priority, Prio},
%% %% {error_report_mod, ErrorReportMod},
%% {versions, Vsns},
%% {db_dir, AgentDir},
%% %% {db_init_error, DbInitError},
%% %% {set_mechanism, SetModule},
%% %% {authentication_service, AuthModule},
%% {audit_trail_log, [{type, read_write},
%% {dir, AgentDir},
%% {size, {10240, 10}},
%% {repair, true}]},
%% {config, [{verbosity, info},
%% {dir, AgentDir},
%% {force_load, false}]},
%% {mibs, Mibs},
%% %% {mib_storage, MibStorage},
%% {local_db, []},
%% {mib_server, []},
%% {symbolic_store, []},
%% {note_store, []},
%% {net_if, []},
%% %% {supervisor, SupOpts}
%% ],
app_env_init(vsn_init(Vsns) ++
[{audit_trail_log, read_write_log},
{audit_trail_log_dir, AgentDir},
{audit_trail_log_size, {10240, 10}},
{force_config_reload, false},
{snmp_agent_type, master},
{snmp_config_dir, AgentDir},
{snmp_db_dir, AgentDir},
{snmp_local_db_auto_repair, true},
{snmp_local_db_verbosity, log},
{snmp_master_agent_verbosity, trace},
{snmp_supervisor_verbosity, trace},
{snmp_mibserver_verbosity, log},
{snmp_symbolic_store_verbosity, log},
{snmp_note_store_verbosity, log},
{snmp_net_if_verbosity, trace}],
Opts),
process_flag(trap_exit,true),
{ok, AppSup} = snmp_app_sup:start_link(),
unlink(AppSup),
?DBG("start_agent -> snmp app supervisor: ~p",[AppSup]),
?DBG("start_agent -> start master agent (old style)",[]),
?line Sup = start_sup(),
?DBG("start_agent -> unlink from supervisor",[]),
?line unlink(Sup),
?line SaDir = ?config(sa_dir, Config),
?DBG("start_agent -> (rpc) start sub on ~p",[SaNode]),
?line {ok, Sub} = start_sub_sup(SaNode, SaDir),
?DBG("start_agent -> done",[]),
?line [{snmp_sup, {Sup, self()}}, {snmp_sub, Sub} | Config].
vsn_init(Vsn) ->
vsn_init([v1,v2,v3], Vsn, []).
vsn_init([], _Vsn, Acc) ->
Acc;
vsn_init([V|Vsns], Vsn, Acc) ->
case lists:member(V, Vsn) of
true ->
vsn_init(Vsns, Vsn, [{V, true}|Acc]);
false ->
vsn_init(Vsns, Vsn, [{V, false}|Acc])
end.
app_env_init(Env0, Opts) ->
?DBG("app_env_init -> unload snmp",[]),
?line application:unload(snmp),
?DBG("app_env_init -> load snmp",[]),
?line application:load(snmp),
?DBG("app_env_init -> initiate (snmp) application env",[]),
F1 = fun({Key, Val} = New, Acc0) ->
?DBG("app_env_init -> "
"updating setting ~p to ~p", [Key, Val]),
case lists:keyreplace(Key, 1, Acc0, New) of
Acc0 ->
[New|Acc0];
Acc ->
Acc
end
end,
Env = lists:foldr(F1, Env0, Opts),
?DBG("app_env_init -> Env: ~p",[Env]),
F2 = fun({Key,Val}) ->
?DBG("app_env_init -> setting ~p to ~p",[Key, Val]),
application_controller:set_env(snmp, Key, Val)
end,
lists:foreach(F2, Env).
stop_agent(Config) when is_list(Config) ->
?LOG("stop_agent -> entry with"
"~n Config: ~p",[Config]),
{Sup, Par} = ?config(snmp_sup, Config),
?DBG("stop_agent -> attempt to stop (sup) ~p"
"~n Sup: ~p"
"~n Par: ~p",
[Sup,
(catch process_info(Sup)),
(catch process_info(Par))]),
Info = agent_info(Sup),
?DBG("stop_agent -> Agent info: "
"~n ~p", [Info]),
stop_sup(Sup, Par),
{Sup2, Par2} = ?config(snmp_sub, Config),
?DBG("stop_agent -> attempt to stop (sub) ~p"
"~n Sup2: ~p"
"~n Par2: ~p",
[Sup2,
(catch process_info(Sup2)),
(catch process_info(Par2))]),
stop_sup(Sup2, Par2),
?DBG("stop_agent -> done - now cleanup config", []),
C1 = lists:keydelete(snmp_sup, 1, Config),
lists:keydelete(snmp_sub, 1, C1).
start_sup() ->
case (catch snmpa_app:start(normal)) of
{ok, S} ->
?DBG("start_agent -> started, Sup: ~p",[S]),
S;
Else ->
?DBG("start_agent -> unknown result: ~n~p",[Else]),
%% Get info about the apps we depend on
?FAIL({start_failed,Else, ?IS_MNESIA_RUNNING()})
end.
stop_sup(Pid, _) when (node(Pid) =:= node()) ->
case (catch process_info(Pid)) of
PI when is_list(PI) ->
?LOG("stop_sup -> attempt to stop ~p", [Pid]),
Ref = erlang:monitor(process, Pid),
exit(Pid, kill),
await_stopped(Pid, Ref);
{'EXIT', _Reason} ->
?LOG("stop_sup -> ~p not running", [Pid]),
ok
end;
stop_sup(Pid, _) ->
?LOG("stop_sup -> attempt to stop ~p", [Pid]),
Ref = erlang:monitor(process, Pid),
?LOG("stop_sup -> Ref: ~p", [Ref]),
%% Pid ! {'EXIT', Parent, shutdown}, % usch
exit(Pid, kill),
await_stopped(Pid, Ref).
await_stopped(Pid, Ref) ->
receive
{'DOWN', Ref, process, Pid, _Reason} ->
?DBG("received down message for ~p", [Pid]),
ok
after 10000 ->
?INF("await_stopped -> timeout for ~p",[Pid]),
erlang:demonitor(Ref),
?FAIL({failed_stop,Pid})
end.
%% --- start subagent supervisor ---
start_sub_sup(Node, Dir) ->
rpc:call(Node, ?MODULE, start_sub_sup, [Dir]).
start_sub_sup(Dir) ->
?DBG("start_sub -> entry",[]),
Opts = [{db_dir, Dir},
{supervisor, [{verbosity, trace}]}],
{ok, P} = snmpa_supervisor:start_sub_sup(Opts),
unlink(P),
{ok, {P, self()}}.
%% --- start and stop subagents ---
start_subagent(SaNode, RegTree, Mib) ->
?DBG("start_subagent -> entry with"
"~n SaNode: ~p"
"~n RegTree: ~p"
"~n Mib: ~p", [SaNode, RegTree, Mib]),
MA = whereis(snmp_master_agent),
?DBG("start_subagent -> MA: ~p", [MA]),
MibDir = get(mib_dir),
Mib1 = join(MibDir,Mib),
Mod = snmpa_supervisor,
Func = start_sub_agent,
Args = [MA, RegTree, [Mib1]],
case rpc:call(SaNode, Mod, Func, Args) of
{ok, SA} ->
?DBG("start_subagent -> SA: ~p", [SA]),
{ok, SA};
Error ->
?FAIL({subagent_start_failed, SaNode, Error, [MA, RegTree, Mib1]})
end.
stop_subagent(SA) ->
?DBG("stop_subagent -> entry with"
"~n SA: ~p", [SA]),
rpc:call(node(SA), snmpa_supervisor, stop_sub_agent, [SA]).
mibs(StdMibDir,MibDir) ->
[join(StdMibDir, ?v1_2("STANDARD-MIB.bin", "SNMPv2-MIB.bin")),
join(MibDir, "OLD-SNMPEA-MIB.bin"),
join(StdMibDir, "SNMP-FRAMEWORK-MIB"),
join(StdMibDir, "SNMP-MPD-MIB"),
join(StdMibDir, "SNMP-VIEW-BASED-ACM-MIB"),
join(StdMibDir, "SNMP-USER-BASED-SM-MIB"),
join(StdMibDir, "SNMP-TARGET-MIB"),
join(StdMibDir, "SNMP-NOTIFICATION-MIB"),
join(MibDir, "Klas1.bin"),
join(MibDir, "Klas2.bin"),
join(MibDir, "Klas3.bin"),
join(MibDir, "Klas4.bin"),
join(MibDir, "SA-MIB.bin"),
join(MibDir, "TestTrap.bin"),
join(MibDir, "Test1.bin"),
join(MibDir, "Test2.bin"),
join(MibDir, "TestTrapv2.bin")].
join(D,F) ->
filename:join(D,F).
%% --- various mib load/unload functions ---
load_master(Mib) ->
?DBG("load_master -> entry with"
"~n Mib: ~p", [Mib]),
snmpa:unload_mibs(snmp_master_agent, [Mib]), % Unload for safety
ok = snmpa:load_mibs(snmp_master_agent, [get(mib_dir) ++ Mib]).
load_master_std(Mib) ->
?DBG("load_master_std -> entry with"
"~n Mib: ~p", [Mib]),
snmpa:unload_mibs(snmp_master_agent, [Mib]), % Unload for safety
ok = snmpa:load_mibs(snmp_master_agent, [get(std_mib_dir) ++ Mib]).
unload_master(Mib) ->
?DBG("unload_master -> entry with"
"~n Mib: ~p", [Mib]),
ok = snmpa:unload_mibs(snmp_master_agent, [Mib]).
loaded_mibs() ->
?DBG("loaded_mibs -> entry",[]),
Info = snmpa:info(snmp_master_agent),
{value, {loaded_mibs, Mibs}} = lists:keysearch(loaded_mibs, 1, Info),
[atom_to_list(Mib) || {Mib,_,_} <- Mibs].
unload_mibs(Mibs) ->
?DBG("unload_mibs -> entry with"
"~n Mibs: ~p", [Mibs]),
ok = snmpa:unload_mibs(snmp_master_agent, Mibs).
agent_info(Sup) ->
?DBG("agent_info -> entry with"
"~n Sup: ~p", [Sup]),
rpc:call(node(Sup), snmpa, info, []).
%% ---
expect(Id, A) ->
Fun = fun() -> do_expect(A) end,
expect2(Id, Fun).
expect(Id, A, B) ->
Fun = fun() -> do_expect(A, B) end,
expect2(Id, Fun).
expect(Id, A, B, C) ->
Fun = fun() -> do_expect(A, B, C) end,
expect2(Id, Fun).
expect(Id, A, B, C, D, E) ->
Fun = fun() -> do_expect(A, B, C, D, E) end,
expect2(Id, Fun).
expect2(Id, F) ->
io:format("~w:expect2 -> entry with"
"~n Id: ~w"
"~n", [?MODULE, Id]),
case F() of
{error, Reason} ->
{error, Id, Reason};
Else ->
io:format("~w:expect2 -> "
"~n Id: ~w"
"~n Else: ~p"
"~n", [?MODULE, Id, Else]),
Else
end.
%% ----------------------------------------------------------------------
get_timeout() ->
get_timeout(os:type()).
get_timeout(vxworks) -> 7000;
get_timeout(_) -> 3500.
receive_pdu(To) ->
receive
{snmp_pdu, PDU} when is_record(PDU, pdu) ->
PDU
after To ->
{error, timeout}
end.
receive_trap(To) ->
receive
{snmp_pdu, PDU} when is_record(PDU, trappdu) ->
PDU
after To ->
{error, timeout}
end.
do_expect(Expect) when is_atom(Expect) ->
do_expect({Expect, get_timeout()});
do_expect({any_pdu, To})
when is_integer(To) orelse (To =:= infinity) ->
io:format("~w:do_expect(any_pdu) -> entry with"
"~n To: ~w"
"~n", [?MODULE, To]),
receive_pdu(To);
do_expect({any_trap, To}) ->
io:format("~w:do_expect(any_trap) -> entry with"
"~n To: ~w"
"~n", [?MODULE, To]),
receive_trap(To);
do_expect({timeout, To}) ->
io:format("~w:do_expect(timeout) -> entry with"
"~n To: ~w"
"~n", [?MODULE, To]),
receive
X ->
{error, {unexpected, X}}
after
To ->
ok
end;
do_expect({Err, To})
when is_atom(Err) andalso (is_integer(To) orelse (To =:= infinity)) ->
do_expect({{error, Err}, To});
do_expect({error, Err}) when is_atom(Err) ->
Check = fun(_, R) -> R end,
do_expect2(Check, any, Err, any, any, get_timeout());
do_expect({{error, Err}, To}) ->
Check = fun(_, R) -> R end,
do_expect2(Check, any, Err, any, any, To);
%% exp_varbinds() -> [exp_varbind()]
%% exp_varbind() -> any | {Oid, any} | {Oid, Value}
%% Oid -> [integer()]
%% Value -> term()
%% ExpVBs -> exp_varbinds() | {VbsCondition, exp_varbinds()}
do_expect(ExpVBs) ->
Check = fun(_, R) -> R end,
do_expect2(Check, 'get-response', noError, 0, ExpVBs, get_timeout()).
do_expect(v2trap, ExpVBs) ->
Check = fun(_, R) -> R end,
do_expect2(Check, 'snmpv2-trap', noError, 0, ExpVBs, get_timeout());
do_expect(report, ExpVBs) ->
Check = fun(_, R) -> R end,
do_expect2(Check, 'report', noError, 0, ExpVBs, get_timeout());
do_expect(inform, ExpVBs) ->
do_expect({inform, true}, ExpVBs);
do_expect({inform, false}, ExpVBs) ->
io:format("~w:do_expect(inform, false) -> entry with"
"~n ExpVBs: ~p"
"~n", [?MODULE, ExpVBs]),
Check = fun(_, R) -> R end,
do_expect2(Check, 'inform-request', noError, 0, ExpVBs, get_timeout());
do_expect({inform, true}, ExpVBs) ->
io:format("~w:do_expect(inform, true) -> entry with"
"~n ExpVBs: ~p"
"~n", [?MODULE, ExpVBs]),
Check =
fun(PDU, ok) ->
RespPDU = PDU#pdu{type = 'get-response',
error_status = noError,
error_index = 0},
snmp_test_mgr:rpl(RespPDU),
ok;
(_, Err) ->
Err
end,
do_expect2(Check, 'inform-request', noError, 0, ExpVBs, get_timeout());
do_expect({inform, {error, EStat, EIdx}}, ExpVBs)
when is_atom(EStat) andalso is_integer(EIdx) ->
Check =
fun(PDU, ok) ->
RespPDU = PDU#pdu{type = 'get-response',
error_status = EStat,
error_index = EIdx},
snmp_test_mgr:rpl(RespPDU),
ok;
(_, Err) ->
Err
end,
do_expect2(Check, 'inform-request', noError, 0, ExpVBs, get_timeout()).
do_expect(Err, Idx, ExpVBs) ->
do_expect(Err, Idx, ExpVBs, get_timeout()).
do_expect(Err, Idx, ExpVBs, To)
when is_atom(Err) andalso
(is_integer(Idx) orelse is_list(Idx) orelse (Idx == any)) ->
Check = fun(_, R) -> R end,
do_expect2(Check, 'get-response', Err, Idx, ExpVBs, To).
do_expect(Type, Enterp, Generic, Specific, ExpVBs) ->
do_expect(Type, Enterp, Generic, Specific, ExpVBs, 3500).
do_expect(trap, Enterp, Generic, Specific, ExpVBs, To) ->
io:format("~w:do_expect(trap) -> entry with"
"~n Enterp: ~w"
"~n Generic: ~w"
"~n Specific: ~w"
"~n ExpVBs: ~w"
"~n To: ~w"
"~nwhen"
"~n Time: ~w"
"~n", [?MODULE, Enterp, Generic, Specific, ExpVBs, To, t()]),
PureE = purify_oid(Enterp),
case receive_trap(To) of
#trappdu{enterprise = PureE,
generic_trap = Generic,
specific_trap = Specific,
varbinds = VBs} ->
check_vbs(purify_oids(ExpVBs), VBs);
#trappdu{enterprise = Ent2,
generic_trap = G2,
specific_trap = Spec2,
varbinds = VBs} ->
{error, {unexpected_trap,
{PureE, Generic, Specific, ExpVBs},
{Ent2, G2, Spec2, VBs}}};
Error ->
Error
end.
do_expect2(Check, Type, Err, Idx, ExpVBs, To)
when is_function(Check) andalso
is_atom(Type) andalso
is_atom(Err) andalso
(is_integer(Idx) orelse is_list(Idx) orelse (Idx =:= any)) andalso
(is_list(ExpVBs) orelse (ExpVBs =:= any)) andalso
(is_integer(To) orelse (To =:= infinity)) ->
io:format("~w:do_expect2 -> entry with"
"~n Type: ~w"
"~n Err: ~w"
"~n Idx: ~w"
"~n ExpVBs: ~w"
"~n To: ~w"
"~nwhen"
"~n Time: ~w"
"~n", [?MODULE, Type, Err, Idx, ExpVBs, To, t()]),
case receive_pdu(To) of
#pdu{type = Type,
error_status = Err,
error_index = Idx} when ExpVBs =:= any ->
ok;
#pdu{type = Type,
request_id = ReqId,
error_status = Err2,
error_index = Idx} when ExpVBs =:= any ->
{error, {unexpected_error_status, Err, Err2, ReqId}};
#pdu{error_status = Err} when (Type =:= any) andalso
(Idx =:= any) andalso
(ExpVBs =:= any) ->
ok;
#pdu{request_id = ReqId,
error_status = Err2} when (Type =:= any) andalso
(Idx =:= any) andalso
(ExpVBs =:= any) ->
{error, {unexpected_error_status, Err, Err2, ReqId}};
#pdu{type = Type,
error_status = Err} when (Idx =:= any) andalso
(ExpVBs =:= any) ->
ok;
#pdu{type = Type,
request_id = ReqId,
error_status = Err2} when (Idx =:= any) andalso
(ExpVBs =:= any) ->
{error, {unexpected_error_status, Err, Err2, ReqId}};
#pdu{type = Type,
request_id = ReqId,
error_status = Err,
error_index = EI} when is_list(Idx) andalso (ExpVBs =:= any) ->
case lists:member(EI, Idx) of
true ->
ok;
false ->
{error, {unexpected_error_index, EI, Idx, ReqId}}
end;
#pdu{type = Type,
request_id = ReqId,
error_status = Err2,
error_index = EI} when is_list(Idx) andalso (ExpVBs =:= any) ->
case lists:member(EI, Idx) of
true ->
{error, {unexpected_error_status, Err, Err2, ReqId}};
false ->
{error, {unexpected_error, {Err, Idx}, {Err2, EI}, ReqId}}
end;
#pdu{type = Type2,
request_id = ReqId,
error_status = Err2,
error_index = Idx2} when ExpVBs =:= any ->
{error,
{unexpected_pdu,
{Type, Err, Idx}, {Type2, Err2, Idx2}, ReqId}};
#pdu{type = Type,
error_status = Err,
error_index = Idx,
varbinds = VBs} = PDU ->
Check(PDU, check_vbs(purify_oids(ExpVBs), VBs));
#pdu{type = Type,
error_status = Err,
varbinds = VBs} = PDU when Idx =:= any ->
Check(PDU, check_vbs(purify_oids(ExpVBs), VBs));
#pdu{type = Type,
request_id = ReqId,
error_status = Err,
error_index = EI,
varbinds = VBs} = PDU when is_list(Idx) ->
PureVBs = purify_oids(ExpVBs),
case lists:member(EI, Idx) of
true ->
Check(PDU, check_vbs(PureVBs, VBs));
false ->
{error, {unexpected_error_index, Idx, EI, ReqId}}
end;
#pdu{type = Type2,
request_id = ReqId,
error_status = Err2,
error_index = Idx2,
varbinds = VBs2} ->
{error,
{unexpected_pdu,
{Type, Err, Idx, purify_oids(ExpVBs)},
{Type2, Err2, Idx2, VBs2},
ReqId}};
Error ->
Error
end.
check_vbs([], []) ->
ok;
check_vbs(Exp, []) ->
{error, {to_few_vbs, Exp}};
check_vbs([], VBs) ->
{error, {to_many_vbs, VBs}};
check_vbs([any|Exp], [_|VBs]) ->
check_vbs(Exp, VBs);
check_vbs([{Oid, any}|Exp], [#varbind{oid = Oid}|VBs]) ->
check_vbs(Exp, VBs);
check_vbs([{Oid, Val}|Exp], [#varbind{oid = Oid, value = Val}|VBs]) ->
check_vbs(Exp, VBs);
check_vbs([{Oid, Val1}|_], [#varbind{oid = Oid, value = Val2}|_]) ->
{error, {unexpected_vb_value, Oid, Val1, Val2}};
check_vbs([{Oid1, _}|_], [#varbind{oid = Oid2}|_]) ->
{error, {unexpected_vb_oid, Oid1, Oid2}}.
purify_oids({VbsCondition, VBs})
when ((VbsCondition =:= true) orelse (VbsCondition =:= false)) andalso
is_list(VBs) ->
{VbsCondition, do_purify_oids(VBs)};
purify_oids(VBs) when is_list(VBs) ->
do_purify_oids(VBs).
do_purify_oids([]) ->
[];
do_purify_oids([{XOid, Q}|T]) ->
[{purify_oid(XOid), Q} | do_purify_oids(T)].
purify_oid(Oid) ->
io:format("~w:purify_oid -> entry with"
"~n Oid: ~w"
"~n",
[?MODULE, Oid]),
case (catch snmp_test_mgr:purify_oid(Oid)) of
{error, Reason} ->
io:format("~w:purify_oid -> error: "
"~n Reason: ~p"
"~n",
[?MODULE, Reason]),
exit({malformed_oid, Reason});
{ok, Oid2} when is_list(Oid2) ->
io:format("~w:purify_oid -> ok: "
"~n Oid2: ~p"
"~n",
[?MODULE, Oid2]),
Oid2;
Error ->
io:format("~w:purify_oid -> unexpected return value: "
"~n Error: ~p"
"~n",
[?MODULE, Error]),
exit({unexpected_purify_result, Error})
end.
%% ----------------------------------------------------------------------
get_req(Id, Vars) ->
?DBG("get_req -> entry with"
"~n Id: ~p"
"~n Vars: ~p",[Id,Vars]),
snmp_test_mgr:g(Vars),
?DBG("get_req -> await response",[]),
case snmp_test_mgr:get_response(Id, Vars) of
{ok, Val} ->
?DBG("get_req -> response: ~p",[Val]),
Val;
{error, _, {ExpFmt, ExpArg}, {ActFmt, ActArg}} ->
?DBG("get_req -> error for ~p: "
"~n " ++ ExpFmt ++
"~n " ++ ActFmt,
[Id] ++ ExpArg ++ ActArg),
exit({unexpected_response, ExpArg, ActArg});
Error ->
?DBG("get_req -> error: ~n~p",[Error]),
exit({unknown, Error})
end.
get_next_req(Vars) ->
?DBG("get_next_req -> entry with"
"~n Vars: ~p",[Vars]),
snmp_test_mgr:gn(Vars),
?DBG("get_next_req -> await response",[]),
Response = snmp_test_mgr:receive_response(),
?DBG("get_next_req -> response: ~p",[Response]),
Response.
%% --- start and stop nodes ---
start_node(Name) ->
?LOG("start_node -> entry with"
"~n Name: ~p"
"~n when"
"~n hostname of this node: ~p",
[Name, list_to_atom(?HOSTNAME(node()))]),
Pa = filename:dirname(code:which(?MODULE)),
?DBG("start_node -> Pa: ~p",[Pa]),
Args = case init:get_argument('CC_TEST') of
{ok, [[]]} ->
" -pa /clearcase/otp/libraries/snmp/ebin ";
{ok, [[Path]]} ->
" -pa " ++ Path;
error ->
""
end,
%% Do not use start_link!!! (the proc that calls this one is tmp)
?DBG("start_node -> Args: ~p~n",[Args]),
A = Args ++ " -pa " ++ Pa,
case (catch ?START_NODE(Name, A)) of
{ok, Node} ->
%% Tell the test_server to not clean up things it never started.
?DBG("start_node -> Node: ~p",[Node]),
{ok, Node};
Else ->
?ERR("start_node -> failed with(other): Else: ~p",[Else]),
?line ?FAIL(Else)
end.
stop_node(Node) ->
?LOG("stop_node -> Node: ~p",[Node]),
rpc:cast(Node, erlang, halt, []).
%%%-----------------------------------------------------------------
%%% Configuration
%%%-----------------------------------------------------------------
config(Vsns, MgrDir, AgentDir, MIp, AIp) ->
?line snmp_config:write_agent_snmp_files(AgentDir, Vsns, MIp,
?TRAP_UDP, AIp, 4000,
"test"),
?line case update_usm(Vsns, AgentDir) of
true ->
?line copy_file(filename:join(AgentDir, "usm.conf"),
filename:join(MgrDir, "usm.conf")),
?line update_usm_mgr(Vsns, MgrDir);
false ->
?line ok
end,
?line update_community(Vsns, AgentDir),
?line update_vacm(Vsns, AgentDir),
?line write_target_addr_conf(AgentDir, MIp, ?TRAP_UDP, Vsns),
?line write_target_params_conf(AgentDir, Vsns),
?line write_notify_conf(AgentDir),
ok.
delete_files(Config) ->
Dir = ?config(agent_dir, Config),
{ok, List} = file:list_dir(Dir),
lists:foreach(fun(FName) -> file:delete(filename:join(Dir, FName)) end,
List).
update_usm(Vsns, Dir) ->
case lists:member(v3, Vsns) of
true ->
Conf = [{"agentEngine", "all-rights", "all-rights", zeroDotZero,
usmNoAuthProtocol, "", "",
usmNoPrivProtocol, "", "", "", "", ""},
{"agentEngine", "no-rights", "no-rights", zeroDotZero,
usmNoAuthProtocol, "", "",
usmNoPrivProtocol, "", "", "", "", ""},
{"agentEngine", "authMD5", "authMD5", zeroDotZero,
usmHMACMD5AuthProtocol, "", "",
usmNoPrivProtocol, "", "", "", "passwd_md5xxxxxx", ""},
{"agentEngine", "authSHA", "authSHA", zeroDotZero,
usmHMACSHAAuthProtocol, "", "",
usmNoPrivProtocol, "", "", "",
"passwd_shaxxxxxxxxxx", ""},
{"agentEngine", "privDES", "privDES", zeroDotZero,
usmHMACSHAAuthProtocol, "", "",
usmDESPrivProtocol, "", "", "",
"passwd_shaxxxxxxxxxx", "passwd_desxxxxxx"},
{"mgrEngine", "all-rights", "all-rights", zeroDotZero,
usmNoAuthProtocol, "", "",
usmNoPrivProtocol, "", "", "", "", ""},
{"mgrEngine", "no-rights", "no-rights", zeroDotZero,
usmNoAuthProtocol, "", "",
usmNoPrivProtocol, "", "", "", "", ""},
{"mgrEngine", "authMD5", "authMD5", zeroDotZero,
usmHMACMD5AuthProtocol, "", "",
usmNoPrivProtocol, "", "", "", "passwd_md5xxxxxx", ""},
{"mgrEngine", "authSHA", "authSHA", zeroDotZero,
usmHMACSHAAuthProtocol, "", "",
usmNoPrivProtocol, "", "", "",
"passwd_shaxxxxxxxxxx", ""},
{"mgrEngine", "privDES", "privDES", zeroDotZero,
usmHMACSHAAuthProtocol, "", "",
usmDESPrivProtocol, "", "", "",
"passwd_shaxxxxxxxxxx", "passwd_desxxxxxx"}],
?line ok = snmp_config:update_agent_usm_config(Dir, Conf),
true;
false ->
false
end.
update_usm_mgr(Vsns, Dir) ->
case lists:member(v3, Vsns) of
true ->
Conf = [{"agentEngine", "newUser", "newUser", zeroDotZero,
usmHMACSHAAuthProtocol, "", "",
usmDESPrivProtocol, "", "", "",
"passwd_shaxxxxxxxxxx", "passwd_desxxxxxx"},
{"mgrEngine", "newUser", "newUser", zeroDotZero,
usmHMACSHAAuthProtocol, "", "",
usmDESPrivProtocol, "", "", "",
"passwd_shaxxxxxxxxxx", "passwd_desxxxxxx"}],
?line ok = snmp_config:update_agent_usm_config(Dir, Conf),
true;
false ->
false
end.
rewrite_usm_mgr(Dir, ShaKey, DesKey) ->
?line ok = file:rename(filename:join(Dir,"usm.conf"),
filename:join(Dir,"usm.old")),
Conf = [{"agentEngine", "newUser", "newUser", zeroDotZero,
usmHMACSHAAuthProtocol, "", "",
usmDESPrivProtocol, "", "", "", ShaKey, DesKey},
{"mgrEngine", "newUser", "newUser", zeroDotZero,
usmHMACSHAAuthProtocol, "", "",
usmDESPrivProtocol, "", "", "", ShaKey, DesKey}],
ok = snmp_config:write_agent_usm_config(Dir, "", Conf).
reset_usm_mgr(Dir) ->
?line ok = file:rename(filename:join(Dir,"usm.old"),
filename:join(Dir,"usm.conf")).
update_community([v3], _Dir) ->
ok;
update_community(_, Dir) ->
Conf = [{"no-rights", "no-rights", "no-rights", "", ""}],
?line ok = snmp_config:update_agent_community_config(Dir, Conf).
-define(tDescr_instance, [1,3,6,1,2,1,16,1,0]).
update_vacm(_Vsn, Dir) ->
Conf = [{vacmSecurityToGroup, usm, "authMD5", "initial"},
{vacmSecurityToGroup, usm, "authSHA", "initial"},
{vacmSecurityToGroup, usm, "privDES", "initial"},
{vacmSecurityToGroup, usm, "newUser", "initial"},
{vacmViewTreeFamily, "internet", ?tDescr_instance,
excluded, null}],
?line ok = snmp_config:update_agent_vacm_config(Dir, Conf).
write_community_conf(Dir, Conf) ->
snmp_config:write_agent_community_config(Dir, "", Conf).
write_target_addr_conf(Dir, Conf) ->
snmp_config:write_agent_target_addr_config(Dir, "", Conf).
write_target_addr_conf(Dir, ManagerIp, UDP, Vsns) ->
snmp_config:write_agent_snmp_target_addr_conf(Dir, ManagerIp, UDP, Vsns).
rewrite_target_addr_conf(Dir, NewPort) ->
?DBG("rewrite_target_addr_conf -> entry with"
"~n NewPort: ~p", [NewPort]),
TAFile = filename:join(Dir, "target_addr.conf"),
case file:read_file_info(TAFile) of
{ok, _} -> ok;
{error, R} -> ?ERR("failure reading file info of "
"target address config file: ~p",[R]),
ok
end,
?line [TrapAddr|Addrs] =
snmp_conf:read(TAFile,
fun(R) -> rewrite_target_addr_conf_check(R) end),
?DBG("rewrite_target_addr_conf -> TrapAddr: ~p",[TrapAddr]),
NewAddrs = [rewrite_target_addr_conf2(NewPort,TrapAddr)|Addrs],
?DBG("rewrite_target_addr_conf -> NewAddrs: ~p",[NewAddrs]),
?line ok = file:rename(filename:join(Dir,"target_addr.conf"),
filename:join(Dir,"target_addr.old")),
?line ok = snmp_config:write_agent_target_addr_config(Dir, "", NewAddrs).
rewrite_target_addr_conf_check(O) ->
{ok,O}.
rewrite_target_addr_conf2(NewPort,{Name,Ip,_Port,Timeout,Retry,
"std_trap",EngineId}) ->
?LOG("rewrite_target_addr_conf2 -> entry with std_trap",[]),
{Name,Ip,NewPort,Timeout,Retry,"std_trap",EngineId};
rewrite_target_addr_conf2(_NewPort,O) ->
?LOG("rewrite_target_addr_conf2 -> entry with "
"~n O: ~p",[O]),
O.
reset_target_addr_conf(Dir) ->
?line ok = file:rename(filename:join(Dir,"target_addr.old"),
filename:join(Dir,"target_addr.conf")).
write_target_params_conf(Dir, Vsns) ->
F = fun(v1) -> {"target_v1", v1, v1, "all-rights", noAuthNoPriv};
(v2) -> {"target_v2", v2c, v2c, "all-rights", noAuthNoPriv};
(v3) -> {"target_v3", v3, usm, "all-rights", noAuthNoPriv}
end,
Conf = [F(Vsn) || Vsn <- Vsns],
snmp_config:write_agent_target_params_config(Dir, "", Conf).
rewrite_target_params_conf(Dir, SecName, SecLevel)
when is_list(SecName) andalso is_atom(SecLevel) ->
?line ok = file:rename(filename:join(Dir,"target_params.conf"),
filename:join(Dir,"target_params.old")),
Conf = [{"target_v3", v3, usm, SecName, SecLevel}],
snmp_config:write_agent_target_params_config(Dir, "", Conf).
reset_target_params_conf(Dir) ->
?line ok = file:rename(filename:join(Dir,"target_params.old"),
filename:join(Dir,"target_params.conf")).
write_notify_conf(Dir) ->
Conf = [{"standard trap", "std_trap", trap},
{"standard inform", "std_inform", inform}],
snmp_config:write_agent_notify_config(Dir, "", Conf).
write_view_conf(Dir) ->
Conf = [{2, [1,3,6], included, null},
{2, ?tDescr_instance, excluded, null}],
snmp_config:write_agent_view_config(Dir, "", Conf).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
copy_file(From, To) ->
{ok, Bin} = file:read_file(From),
ok = file:write_file(To, Bin).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
display_memory_usage() ->
Info = snmpa:info(snmp_master_agent),
TreeSize = key1search(tree_size_bytes, Info),
ProcMem = key1search(process_memory, Info),
MibDbSize = key1search([db_memory,mib], Info),
NodeDbSize = key1search([db_memory,node], Info),
TreeDbSize = key1search([db_memory,tree], Info),
?INF("Memory usage: "
"~n Tree size: ~p"
"~n Process memory size: ~p"
"~n Mib db size: ~p"
"~n Node db size: ~p"
"~n Tree db size: ~p",
[TreeSize, ProcMem, MibDbSize, NodeDbSize, TreeDbSize]).
key1search([], Res) ->
Res;
key1search([Key|Keys], List) when is_atom(Key) andalso is_list(List) ->
case lists:keysearch(Key, 1, List) of
{value, {Key, Val}} ->
key1search(Keys, Val);
false ->
undefined
end;
key1search(Key, List) when is_atom(Key) ->
case lists:keysearch(Key, 1, List) of
{value, {Key, Val}} ->
Val;
false ->
undefined
end.
regs() ->
lists:sort(registered()).
rpc(Node, F, A) ->
rpc:call(Node, snmpa, F, A).
%% await_pdu(To) ->
%% await_response(To, pdu).
%%
%% await_trap(To) ->
%% await_response(To, trap).
%%
%% await_any(To) ->
%% await_response(To, any).
%%
%%
%% await_response(To, What) ->
%% await_response(To, What, []).
%%
%% await_response(To, What, Stuff) when is_integer(To) andalso (To >= 0) ->
%% T = t(),
%% receive
%% {snmp_pdu, PDU} when is_record(Trap, pdu) andalso (What =:= pdu) ->
%% {ok, PDU};
%% {snmp_pdu, Trap} is_when record(Trap, trappdu) andalso (What =:= trap) ->
%% {ok, Trap};
%% Any when What =:= any ->
%% {ok, Any};
%% Any ->
%% %% Recalc time
%% NewTo = To - (t() - T)
%% await_reponse(NewTo, What, [{NewTo, Any}|Stuff])
%% after To ->
%% {error, {timeout, Stuff}}
%% end;
%% await_response(_, Stuff) ->
%% {error, {timeout, Stuff}}.
%%
%%
%% t() ->
%% {A,B,C} = erlang:now(),
%% A*1000000000+B*1000+(C div 1000).
%%
%%
%% timeout() ->
%% timeout(os:type()).
%%
%% timeout(vxworks) -> 7000;
%% timeout(_) -> 3500.
%% Time in milli seconds
t() ->
{A,B,C} = erlang:now(),
A*1000000000+B*1000+(C div 1000).
