diff options
Diffstat (limited to 'lib/snmp/src/agent/snmpa_mpd.erl')
| -rw-r--r-- | lib/snmp/src/agent/snmpa_mpd.erl | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/lib/snmp/src/agent/snmpa_mpd.erl b/lib/snmp/src/agent/snmpa_mpd.erl index fd75b98f84..39a4246d26 100644 --- a/lib/snmp/src/agent/snmpa_mpd.erl +++ b/lib/snmp/src/agent/snmpa_mpd.erl @@ -115,8 +115,8 @@ reset() -> %% Func: process_packet(Packet, TDomain, TAddress, State, Log) -> %% {ok, SnmpVsn, Pdu, PduMS, ACMData} | {discarded, Reason} %% Types: Packet = binary() -%% TDomain = snmpUDPDomain | atom() -%% TAddress = {Ip, Udp} +%% TDomain = snmpUDPDomain | transportDomain() +%% TAddress = {Ip, Udp} (*but* depends on TDomain) %% State = #state %% Purpose: This is the main Message Dispatching function. (see %% section 4.2.1 in rfc2272) @@ -182,24 +182,30 @@ discarded_pdu(Variable) -> inc(Variable). %%----------------------------------------------------------------- %% Handles a Community based message (v1 or v2c). %%----------------------------------------------------------------- -v1_v2c_proc(Vsn, NoteStore, Community, snmpUDPDomain, +v1_v2c_proc(Vsn, NoteStore, Community, Domain, {Ip, Udp}, LocalEngineID, Data, HS, Log, Packet) -> - TAddress = tuple_to_list(Ip) ++ [Udp div 256, Udp rem 256], - AgentMS = get_engine_max_message_size(LocalEngineID), - MgrMS = snmp_community_mib:get_target_addr_ext_mms(?snmpUDPDomain, - TAddress), - PduMS = case MgrMS of - {ok, MMS} when MMS < AgentMS -> MMS - HS; - _ -> AgentMS - HS - end, + TDomain = snmp_conf:mk_tdomain(Domain), + TAddress = snmp_conf:mk_taddress(Domain, Ip, Udp), + AgentMS = get_engine_max_message_size(LocalEngineID), + MgrMS = snmp_community_mib:get_target_addr_ext_mms(TDomain, TAddress), + PduMS = case MgrMS of + {ok, MMS} when MMS < AgentMS -> MMS - HS; + _ -> AgentMS - HS + end, case (catch snmp_pdus:dec_pdu(Data)) of Pdu when is_record(Pdu, pdu) -> Log(Pdu#pdu.type, Packet), inc_snmp_in_vars(Pdu), #pdu{request_id = ReqId} = Pdu, - OkRes = {ok, Vsn, Pdu, PduMS, - {community, sec_model(Vsn), Community, TAddress}}, + + %% <TDomain> + %% We have added TDomain, what are the consequences? + ACMData = + {community, sec_model(Vsn), Community, TDomain, TAddress}, + OkRes = {ok, Vsn, Pdu, PduMS, ACMData}, + %% </TDomain> + %% Make sure that we don't process duplicate SET request %% twice. We don't know what could happen in that case. %% The mgr does, so he has to generate a new SET request. @@ -216,8 +222,6 @@ v1_v2c_proc(Vsn, NoteStore, Community, snmpUDPDomain, snmp_note_store:set_note(NoteStore, 100, Key, true), %% Uses ACMData that snmpa_acm knows of. - %% snmpUDPDomain is implicit, since that's the only - %% one we handle. OkRes; true -> {discarded, duplicate_pdu} @@ -275,12 +279,12 @@ v3_proc(NoteStore, Packet, LocalEngineID, V3Hdr, Data, Log) -> "~n msgSecurityParameters = ~w", [MsgID, MMS, MsgFlags, MsgSecurityModel, SecParams]), %% 7.2.4 - SecModule = get_security_module(MsgSecurityModel), + SecModule = get_security_module(MsgSecurityModel), %% 7.2.5 - SecLevel = check_sec_level(MsgFlags), + SecLevel = check_sec_level(MsgFlags), IsReportable = snmp_misc:is_reportable(MsgFlags), %% 7.2.6 - ?vtrace("v3_proc -> [7.2.6]" + ?vtrace("v3_proc -> [7.2.4-7.2.6]" "~n SecModule = ~p" "~n SecLevel = ~p" "~n IsReportable = ~p", @@ -531,7 +535,7 @@ check_sec_module_result(Res, V3Hdr, Data, LocalEngineID, IsReportable, Log) -> ?vdebug("security module result [7.2.6-b]:" "~n Reason: ~p", [Reason]), throw({discarded, {securityError, Reason}}); - {error, Reason, ErrorInfo} when IsReportable == true -> % case 7.2.6 a + {error, Reason, ErrorInfo} when IsReportable =:= true -> % case 7.2.6 a ?vdebug("security module result when reportable [7.2.6-a]:" "~n Reason: ~p" "~n ErrorInfo: ~p", [Reason, ErrorInfo]), @@ -574,7 +578,7 @@ generate_response_msg(Vsn, RePdu, Type, ACMData, LocalEngineID, Log) -> generate_response_msg(Vsn, RePdu, Type, ACMData, LocalEngineID, Log, 1). generate_response_msg(Vsn, RePdu, Type, - {community, _SecModel, Community, _IpUdp}, + {community, _SecModel, Community, _TDomain, _TAddress}, LocalEngineID, Log, _) -> case catch snmp_pdus:enc_pdu(RePdu) of |