%% %% %CopyrightBegin% %% %% Copyright Ericsson AB 2005-2012. 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 %% 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 %%% %%% finish_mul %%% %%% 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(Config) when is_list(Config) -> ?LOG("init_all -> entry with" "~n Config: ~p",[Config]), %% -- %% Start nodes %% ?line {ok, SaNode} = start_node(snmp_sa), ?line {ok, MgrNode} = start_node(snmp_mgr), %% -- %% Create necessary files ( and dirs ) %% SuiteTopDir = ?config(snmp_suite_top_dir, Config), ?DBG("init_all -> SuiteTopDir ~p", [SuiteTopDir]), AgentDir = filename:join(SuiteTopDir, "agent/"), ?line ok = file:make_dir(AgentDir), ?DBG("init_all -> AgentDir ~p", [AgentDir]), AgentDbDir = filename:join(AgentDir, "db/"), ?line ok = file:make_dir(AgentDbDir), ?DBG("init_all -> AgentDbDir ~p", [AgentDbDir]), AgentLogDir = filename:join(AgentDir, "log/"), ?line ok = file:make_dir(AgentLogDir), ?DBG("init_all -> AgentLogDir ~p", [AgentLogDir]), AgentConfDir = filename:join(AgentDir, "conf/"), ?line ok = file:make_dir(AgentConfDir), ?DBG("init_all -> AgentConfDir ~p", [AgentConfDir]), MgrDir = filename:join(SuiteTopDir, "mgr/"), ?line ok = file:make_dir(MgrDir), ?DBG("init_all -> MgrDir ~p", [MgrDir]), SaDir = filename:join(SuiteTopDir, "sa/"), ?line ok = file:make_dir(SaDir), ?DBG("init_all -> SaDir ~p", [SaDir]), SaDbDir = filename:join(SaDir, "db/"), ?line ok = file:make_dir(SaDbDir), ?DBG("init_all -> SaDbDir ~p", [SaDbDir]), %% MibDir = ?config(mib_dir, Config), %% ?DBG("init_all -> MibDir ~p", [DataDir]), %% -- %% 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(AgentDbDir, "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(SaDir, "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}, {snmp_master, node()}, {agent_dir, AgentDir ++ "/"}, {agent_db_dir, AgentDbDir ++ "/"}, {agent_log_dir, AgentLogDir ++ "/"}, {agent_conf_dir, AgentConfDir ++ "/"}, {sa_dir, SaDir ++ "/"}, {sa_db_dir, SaDbDir ++ "/"}, {mgr_dir, MgrDir ++ "/"}, %% {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 = ?config(snmp_master, 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]), case Ret of {error, Reason} -> exit(Reason); OK -> OK end 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 = ?CRYPTO_START(), ?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], [{multi_threaded, true}]). start_mt_agent(Config, Opts) when is_list(Config) andalso is_list(Opts) -> start_agent(Config, [v2], [{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 AgentLogDir = ?config(agent_log_dir, Config), ?line AgentConfDir = ?config(agent_conf_dir, Config), ?line AgentDbDir = ?config(agent_db_dir, Config), ?line SaNode = ?config(snmp_sa, Config), Env = app_agent_env_init( [{versions, Vsns}, {agent_type, master}, {agent_verbosity, trace}, {audit_trail_log, [{type, read_write}, {dir, AgentLogDir}, {size, {10240, 10}}]}, {config, [{dir, AgentConfDir}, {force_load, false}, {verbosity, trace}]}, {db_dir, AgentDbDir}, {local_db, [{repair, true}, {verbosity, log}]}, {mib_server, [{verbosity, log}]}, {symbolic_store, [{verbosity, log}]}, {note_store, [{verbosity, log}]}, {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",[]), ?line Sup = start_sup(Env), ?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]. app_agent_env_init(Env0, Opts) -> ?DBG("app_agent_env_init -> unload snmp",[]), ?line application:unload(snmp), ?DBG("app_agent_env_init -> load snmp",[]), ?line application:load(snmp), ?DBG("app_agent_env_init -> initiate (snmp agent) application env",[]), F1 = fun({Key, Val} = New, Acc0) -> ?DBG("app_agent_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_agent_env_init -> Env: ~p", [Env]), %% We put it into the app environment just as %% a precaution, since when starting normally, %% there is where the environment is taken from. app_set_agent_env(Env), Env. app_set_agent_env(Value) -> application_controller:set_env(snmp, agent, Value). 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(Env) -> case (catch snmp_app_sup:start_agent(normal, Env)) 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("EXPECT for ~w~n", [Id]), case F() of {error, Reason} -> io:format("EXPECT failed for ~w: ~n~p~n", [Id, Reason]), throw({error, {expect, Id, Reason}}); Else -> io:format("EXPECT result for ~w: ~n~p~n", [Id, Else]), Else end. %% ---------------------------------------------------------------------- get_timeout() -> get_timeout(os:type()). 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("EXPECT any PDU~n", []), receive_pdu(To); do_expect({any_trap, To}) -> io:format("EXPECT any TRAP within ~w~n", [To]), receive_trap(To); do_expect({timeout, To}) -> io:format("EXPECT nothing within ~w~n", [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)) -> io:format("EXPECT error ~w within ~w~n", [Err, To]), do_expect({{error, Err}, To}); do_expect({error, Err}) when is_atom(Err) -> Check = fun(_, R) -> R end, io:format("EXPECT error ~w~n", [Err]), do_expect2(Check, any, Err, any, any, get_timeout()); do_expect({{error, Err}, To}) -> Check = fun(_, R) -> R end, io:format("EXPECT error ~w within ~w~n", [Err, To]), 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, io:format("EXPECT 'get-response'" "~n with" "~n Varbinds: ~p~n", [ExpVBs]), do_expect2(Check, 'get-response', noError, 0, ExpVBs, get_timeout()). do_expect(v2trap, ExpVBs) -> Check = fun(_, R) -> R end, io:format("EXPECT 'snmpv2-trap'" "~n with" "~n Varbinds: ~p~n", [ExpVBs]), do_expect2(Check, 'snmpv2-trap', noError, 0, ExpVBs, get_timeout()); do_expect(report, ExpVBs) -> Check = fun(_, R) -> R end, io:format("EXPECT 'report'" "~n with" "~n Varbinds: ~p~n", [ExpVBs]), do_expect2(Check, 'report', noError, 0, ExpVBs, get_timeout()); do_expect(inform, ExpVBs) -> do_expect({inform, true}, ExpVBs); do_expect({inform, false}, ExpVBs) -> Check = fun(_, R) -> R end, io:format("EXPECT 'inform-request' (false)" "~n with" "~n Varbinds: ~p~n", [ExpVBs]), do_expect2(Check, 'inform-request', noError, 0, ExpVBs, get_timeout()); do_expect({inform, true}, 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, io:format("EXPECT 'inform-request' (true)" "~n with" "~n Varbinds: ~p~n", [ExpVBs]), 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, io:format("EXPECT 'inform-request' (error)" "~n with" "~n Error Status: ~p" "~n Error Index: ~p" "~n Varbinds: ~p~n", [EStat, EIdx, ExpVBs]), 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, io:format("EXPECT 'get-response'" "~n with" "~n Error: ~p" "~n Index: ~p" "~n Varbinds: ~p" "~n within ~w~n", [Err, Idx, ExpVBs, To]), 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("EXPECT trap" "~n with" "~n Enterp: ~w" "~n Generic: ~w" "~n Specific: ~w" "~n Varbinds: ~w" "~n within ~w~n", [Enterp, Generic, Specific, ExpVBs, To]), 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)) -> case receive_pdu(To) of #pdu{type = Type, error_status = Err, error_index = Idx} when ExpVBs =:= any -> io:format("EXPECT received expected pdu (1)~n", []), ok; #pdu{type = Type, request_id = ReqId, error_status = Err2, error_index = Idx} when ExpVBs =:= any -> io:format("EXPECT received expected pdu with " "unexpected error status (2): " "~n Error Status: ~p~n", [Err2]), {error, {unexpected_error_status, Err, Err2, ReqId}}; #pdu{error_status = Err} when (Type =:= any) andalso (Idx =:= any) andalso (ExpVBs =:= any) -> io:format("EXPECT received expected pdu (3)~n", []), ok; #pdu{request_id = ReqId, error_status = Err2} when (Type =:= any) andalso (Idx =:= any) andalso (ExpVBs =:= any) -> io:format("EXPECT received expected pdu with " "unexpected error status (4): " "~n Error Status: ~p~n", [Err2]), {error, {unexpected_error_status, Err, Err2, ReqId}}; #pdu{type = Type, error_status = Err} when (Idx =:= any) andalso (ExpVBs =:= any) -> io:format("EXPECT received expected pdu (5)~n", []), ok; #pdu{type = Type, request_id = ReqId, error_status = Err2} when (Idx =:= any) andalso (ExpVBs =:= any) -> io:format("EXPECT received expected pdu with " "unexpected error status (6): " "~n Error Status: ~p~n", [Err2]), {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 -> io:format("EXPECT received expected pdu with " "expected error index (7)~n", []), ok; false -> io:format("EXPECT received expected pdu with " "unexpected error index (8): " "~n Error Index: ~p~n", [EI]), {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 -> io:format("EXPECT received expected pdu with " "unexpected error status (9): " "~n Error Status: ~p~n", [Err2]), {error, {unexpected_error_status, Err, Err2, ReqId}}; false -> io:format("EXPECT received expected pdu with " "unexpected error (10): " "~n Error Status: ~p" "~n Error index: ~p~n", [Err2, EI]), {error, {unexpected_error, {Err, Idx}, {Err2, EI}, ReqId}} end; #pdu{type = Type2, request_id = ReqId, error_status = Err2, error_index = Idx2} when ExpVBs =:= any -> io:format("EXPECT received unexpected pdu with (11) " "~n Type: ~p" "~n ReqId: ~p" "~n Errot status: ~p" "~n Error index: ~p" "~n", [Type2, ReqId, Err2, Idx2]), {error, {unexpected_pdu, {Type, Err, Idx}, {Type2, Err2, Idx2}, ReqId}}; #pdu{type = Type, error_status = Err, error_index = Idx, varbinds = VBs} = PDU -> io:format("EXPECT received pdu (12): " "~n [exp] Type: ~p" "~n [exp] Error Status: ~p" "~n [exp] Error Index: ~p" "~n VBs: ~p" "~nwhen" "~n ExpVBs: ~p" "~n", [Type, Err, Idx, VBs, ExpVBs]), Check(PDU, check_vbs(purify_oids(ExpVBs), VBs)); #pdu{type = Type, error_status = Err, varbinds = VBs} = PDU when Idx =:= any -> io:format("EXPECT received pdu (13): " "~n [exp] Type: ~p" "~n [exp] Error Status: ~p" "~n VBs: ~p" "~nwhen" "~n ExpVBs: ~p" "~n", [Type, Err, VBs, ExpVBs]), 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) -> io:format("EXPECT received pdu (14): " "~n [exp] Type: ~p" "~n ReqId: ~p" "~n [exp] Error Status: ~p" "~n [exp] Error Index: ~p" "~n VBs: ~p" "~nwhen" "~n ExpVBs: ~p" "~n", [Type, ReqId, Err, EI, VBs, ExpVBs]), 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} -> io:format("EXPECT received unexpected pdu with (15) " "~n Type: ~p" "~n ReqId: ~p" "~n Errot status: ~p" "~n Error index: ~p" "~n Varbinds: ~p" "~n", [Type2, ReqId, Err2, Idx2, VBs2]), {error, {unexpected_pdu, {Type, Err, Idx, purify_oids(ExpVBs)}, {Type2, Err2, Idx2, VBs2}, ReqId}}; Error -> io:format("EXPECT received error (16): " "~n Error: ~p" "~n", [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, AgentConfDir, MIp, AIp) -> ?LOG("config -> entry with" "~n Vsns: ~p" "~n MgrDir: ~p" "~n AgentConfDir: ~p" "~n MIp: ~p" "~n AIp: ~p", [Vsns, MgrDir, AgentConfDir, MIp, AIp]), ?line snmp_config:write_agent_snmp_files(AgentConfDir, Vsns, MIp, ?TRAP_UDP, AIp, 4000, "test"), ?line case update_usm(Vsns, AgentConfDir) of true -> ?line copy_file(filename:join(AgentConfDir, "usm.conf"), filename:join(MgrDir, "usm.conf")), ?line update_usm_mgr(Vsns, MgrDir); false -> ?line ok end, ?line update_community(Vsns, AgentConfDir), ?line update_vacm(Vsns, AgentConfDir), ?line write_target_addr_conf(AgentConfDir, MIp, ?TRAP_UDP, Vsns), ?line write_target_params_conf(AgentConfDir, Vsns), ?line write_notify_conf(AgentConfDir), ok. delete_files(Config) -> AgentDir = ?config(agent_dir, Config), delete_files(AgentDir, [db, conf]). delete_files(_AgentFiles, []) -> ok; delete_files(AgentDir, [DirName|DirNames]) -> Dir = filename:join(AgentDir, DirName), {ok, Files} = file:list_dir(Dir), lists:foreach(fun(FName) -> file:delete(filename:join(Dir, FName)) end, Files), delete_files(AgentDir, DirNames). 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} = os:timestamp(), %% A*1000000000+B*1000+(C div 1000). %% %% %% timeout() -> %% timeout(os:type()). %% %% timeout(_) -> 3500. %% Time in milli seconds %% t() -> %% {A,B,C} = os:timestamp(), %% A*1000000000+B*1000+(C div 1000).