diff options
Diffstat (limited to 'lib/diameter/src/base/diameter_peer_fsm.erl')
| -rw-r--r-- | lib/diameter/src/base/diameter_peer_fsm.erl | 114 |
1 files changed, 64 insertions, 50 deletions
diff --git a/lib/diameter/src/base/diameter_peer_fsm.erl b/lib/diameter/src/base/diameter_peer_fsm.erl index de341741db..ad26f230ef 100644 --- a/lib/diameter/src/base/diameter_peer_fsm.erl +++ b/lib/diameter/src/base/diameter_peer_fsm.erl @@ -46,16 +46,19 @@ -include_lib("diameter/include/diameter.hrl"). -include("diameter_internal.hrl"). --include("diameter_gen_base_rfc3588.hrl"). %% Values of Disconnect-Cause in DPR. --define(GOAWAY, ?'DIAMETER_BASE_DISCONNECT-CAUSE_DO_NOT_WANT_TO_TALK_TO_YOU'). --define(REBOOT, ?'DIAMETER_BASE_DISCONNECT-CAUSE_REBOOTING'). --define(BUSY, ?'DIAMETER_BASE_DISCONNECT-CAUSE_BUSY'). +-define(GOAWAY, 2). %% DO_NOT_WANT_TO_TALK_TO_YOU +-define(BUSY, 1). %% BUSY +-define(REBOOT, 0). %% REBOOTING +%% Values of Inband-Security-Id. -define(NO_INBAND_SECURITY, 0). -define(TLS, 1). +%% Note that the a common dictionary hrl is purposely not included +%% since the common dictionary is an argument to start/3. + %% Keys in process dictionary. -define(CB_KEY, cb). %% capabilities callback -define(DPR_KEY, dpr). %% disconnect callback @@ -100,8 +103,9 @@ | {'Wait-CEA', uint32(), uint32()} | 'Open', mode :: accept | connect | {connect, reference()}, - parent :: pid(), %% watchdog process - transport :: pid(), %% transport process + parent :: pid(), %% watchdog process + transport :: pid(), %% transport process + dictionary :: module(), %% common dictionary service :: #diameter_service{}, dpr = false :: false | {uint32(), uint32()}}). %% | hop by hop and end to end identifiers @@ -134,7 +138,8 @@ %% --------------------------------------------------------------------------- -spec start(T, [Opt], {diameter:sequence(), - diameter:restriction(), + [node()], + module(), #diameter_service{}}) -> {reference(), pid()} when T :: {connect|accept, diameter:transport_ref()}, @@ -173,6 +178,7 @@ init(T) -> i({Ack, WPid, {M, Ref} = T, Opts, {Mask, Nodes, + Dict0, #diameter_service{capabilities = LCaps} = Svc}}) -> erlang:monitor(process, WPid), @@ -191,6 +197,7 @@ i({Ack, WPid, {M, Ref} = T, Opts, {Mask, #state{state = {'Wait-Conn-Ack', Tmo}, parent = WPid, transport = TPid, + dictionary = Dict0, mode = M, service = svc(Svc, Addrs)}. %% The transport returns its local ip addresses so that different @@ -199,8 +206,7 @@ i({Ack, WPid, {M, Ref} = T, Opts, {Mask, %% sending capabilities exchange messages. %% %% Invalid transport config may cause us to crash but note that the -%% watchdog start (start/2) succeeds regardless so as not to crash the -%% service. +%% watchdog start (start/2) succeeds regardless. %% Wait for the caller to have a monitor to avoid a race with our %% death. (Since the exit reason is used in diameter_service.) @@ -455,7 +461,8 @@ start_next(#state{service = Svc0} = S) -> send_CER(#state{state = {'Wait-Conn-Ack', Tmo}, mode = {connect, Remote}, service = #diameter_service{capabilities = LCaps}, - transport = TPid} + transport = TPid, + dictionary = Dict} = S) -> OH = LCaps#diameter_caps.origin_host, req_send_CER(OH, Remote) @@ -466,7 +473,7 @@ send_CER(#state{state = {'Wait-Conn-Ack', Tmo}, #diameter_packet{header = #diameter_header{end_to_end_id = Eid, hop_by_hop_id = Hid}} = Pkt - = encode(CER), + = encode(CER, Dict), send(TPid, Pkt), start_timer(Tmo, S#state{state = {'Wait-CEA', Hid, Eid}}). @@ -488,19 +495,20 @@ start_timer(Tmo, #state{state = PS} = S) -> %% build_CER/1 -build_CER(#state{service = #diameter_service{capabilities = LCaps}}) -> - {ok, CER} = diameter_capx:build_CER(LCaps), +build_CER(#state{service = #diameter_service{capabilities = LCaps}, + dictionary = Dict}) -> + {ok, CER} = diameter_capx:build_CER(LCaps, Dict), CER. -%% encode/1 +%% encode/2 -encode(Rec) -> +encode(Rec, Dict) -> Seq = diameter_session:sequence({_,_} = getr(?SEQUENCE_KEY)), Hdr = #diameter_header{version = ?DIAMETER_VERSION, end_to_end_id = Seq, hop_by_hop_id = Seq}, - diameter_codec:encode(?BASE, #diameter_packet{header = Hdr, - msg = Rec}). + diameter_codec:encode(Dict, #diameter_packet{header = Hdr, + msg = Rec}). %% recv/2 @@ -521,9 +529,10 @@ recv(#diameter_packet{header = #diameter_header{length = Len} recv(#diameter_packet{header = #diameter_header{} = Hdr} = Pkt, - #state{parent = Pid} + #state{parent = Pid, + dictionary = Dict0} = S) -> - Name = diameter_codec:msg_name(Hdr), + Name = diameter_codec:msg_name(Dict0, Hdr), Pid ! {recv, self(), Name, Pkt}, diameter_stats:incr({msg_id(Name, Hdr), recv}), %% count received rcv(Name, Pkt, S); @@ -608,13 +617,13 @@ send(Pid, Msg) -> %% handle_request/3 -handle_request(Type, #diameter_packet{} = Pkt, S) -> +handle_request(Type, #diameter_packet{} = Pkt, #state{dictionary = D} = S) -> ?LOG(recv, Type), - send_answer(Type, diameter_codec:decode(?BASE, Pkt), S). + send_answer(Type, diameter_codec:decode(D, Pkt), S). %% send_answer/3 -send_answer(Type, ReqPkt, #state{transport = TPid} = S) -> +send_answer(Type, ReqPkt, #state{transport = TPid, dictionary = Dict} = S) -> #diameter_packet{header = H, transport_data = TD} = ReqPkt, @@ -631,13 +640,15 @@ send_answer(Type, ReqPkt, #state{transport = TPid} = S) -> msg = Msg, transport_data = TD}, - send(TPid, diameter_codec:encode(?BASE, Pkt)), + send(TPid, diameter_codec:encode(Dict, Pkt)), eval(PostF, S). eval([F|A], S) -> apply(F, A ++ [S]); eval(ok, S) -> - S. + S; +eval(T, _) -> + close(T). %% build_answer/3 @@ -648,11 +659,11 @@ build_answer('CER', is_error = false}, errors = []} = Pkt, - S) -> - {SupportedApps, RCaps, #diameter_base_CEA{'Result-Code' = RC, - 'Inband-Security-Id' = IS} - = CEA} - = recv_CER(CER, S), + #state{dictionary = Dict0} + = S) -> + {SupportedApps, RCaps, CEA} = recv_CER(CER, S), + + [RC, IS] = Dict0:'#get-'(['Result-Code', 'Inband-Security-Id'], CEA), #diameter_caps{origin_host = {OH, DH}} = Caps @@ -665,10 +676,10 @@ build_answer('CER', orelse ?THROW(4003), %% DIAMETER_ELECTION_LOST caps_cb(Caps) of - N -> {cea(CEA, N), [fun open/5, Pkt, - SupportedApps, - Caps, - {accept, hd([_] = IS)}]} + N -> {cea(CEA, N, Dict0), [fun open/5, Pkt, + SupportedApps, + Caps, + {accept, hd([_] = IS)}]} catch ?FAILURE(Reason) -> rejected(Reason, {'CER', Reason, Caps, Pkt}, S) @@ -685,15 +696,15 @@ build_answer(Type, RC = rc(H, Es), {answer(Type, RC, Es, S), post(Type, RC, Pkt, S)}. -cea(CEA, ok) -> +cea(CEA, ok, _) -> CEA; -cea(CEA, 2001) -> +cea(CEA, 2001, _) -> CEA; -cea(CEA, RC) -> - CEA#diameter_base_CEA{'Result-Code' = RC}. +cea(CEA, RC, Dict0) -> + Dict0:'#set-'({'Result-Code', RC}, CEA). post('CER' = T, RC, Pkt, S) -> - [fun(_) -> close({T, caps(S), {RC, Pkt}}) end]; + {T, caps(S), {RC, Pkt}}; post(_, _, _, _) -> ok. @@ -703,7 +714,7 @@ rejected({capabilities_cb, _F, Reason}, T, S) -> rejected(discard, T, _) -> close(T); rejected({N, Es}, T, S) -> - {answer('CER', N, Es, S), [fun(_) -> close(T) end]}; + {answer('CER', N, Es, S), T}; rejected(N, T, S) -> rejected({N, []}, T, S). @@ -729,7 +740,7 @@ is_origin({N, _}) -> orelse N == 'Origin-State-Id'. %% failed_avp/1 - + failed_avp([] = No) -> No; failed_avp(Avps) -> @@ -818,22 +829,23 @@ a('DPR', #diameter_caps{origin_host = {Host, _}, %% recv_CER/2 -recv_CER(CER, #state{service = Svc}) -> - {ok, T} = diameter_capx:recv_CER(CER, Svc), +recv_CER(CER, #state{service = Svc, dictionary = Dict}) -> + {ok, T} = diameter_capx:recv_CER(CER, Svc, Dict), T. %% handle_CEA/1 handle_CEA(#diameter_packet{bin = Bin} = Pkt, - #state{service = #diameter_service{capabilities = LCaps}} + #state{dictionary = Dict0, + service = #diameter_service{capabilities = LCaps}} = S) when is_binary(Bin) -> ?LOG(recv, 'CEA'), #diameter_packet{msg = CEA} = DPkt - = diameter_codec:decode(?BASE, Pkt), + = diameter_codec:decode(Dict0, Pkt), {SApps, IS, RCaps} = recv_CEA(DPkt, S), @@ -841,8 +853,7 @@ handle_CEA(#diameter_packet{bin = Bin} = Caps = capz(LCaps, RCaps), - #diameter_base_CEA{'Result-Code' = RC} - = CEA, + RC = Dict0:'#get-'('Result-Code', CEA), %% Ensure that we don't already have a connection to the peer in %% question. This isn't the peer election of 3588 except in the @@ -878,8 +889,9 @@ recv_CEA(#diameter_packet{header = #diameter_header{version is_error = false}, msg = CEA, errors = []}, - #state{service = Svc}) -> - {ok, T} = diameter_capx:recv_CEA(CEA, Svc), + #state{service = Svc, + dictionary = Dict}) -> + {ok, T} = diameter_capx:recv_CEA(CEA, Svc, Dict), T; recv_CEA(Pkt, S) -> @@ -1022,13 +1034,14 @@ dpr([CB|Rest], [Reason | _] = Args, S) -> diameter_lib:error_report(failure, No), {stop, No} end; - + dpr([], [Reason | _], S) -> send_dpr(Reason, [], S). -record(opts, {cause, timeout = ?DPA_TIMEOUT}). send_dpr(Reason, Opts, #state{transport = TPid, + dictionary = Dict, service = #diameter_service{capabilities = Caps}} = S) -> #opts{cause = Cause, timeout = Tmo} @@ -1048,7 +1061,8 @@ send_dpr(Reason, Opts, #state{transport = TPid, = Pkt = encode(['DPR', {'Origin-Host', OH}, {'Origin-Realm', OR}, - {'Disconnect-Cause', Cause}]), + {'Disconnect-Cause', Cause}], + Dict), send(TPid, Pkt), dpa_timer(Tmo), ?LOG(send, 'DPR'), |