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-rw-r--r--lib/diameter/src/base/diameter_traffic.erl313
1 files changed, 169 insertions, 144 deletions
diff --git a/lib/diameter/src/base/diameter_traffic.erl b/lib/diameter/src/base/diameter_traffic.erl
index 3463a93568..27a41d6eb0 100644
--- a/lib/diameter/src/base/diameter_traffic.erl
+++ b/lib/diameter/src/base/diameter_traffic.erl
@@ -70,12 +70,13 @@
timeout = 5000 :: 0..16#FFFFFFFF, %% for outgoing requests
detach = false :: boolean()}).
-%% Term passed back to receive_message/6 with every incoming message.
+%% Term passed back to receive_message/5 with every incoming message.
-record(recvdata,
{peerT :: ets:tid(),
service_name :: diameter:service_name(),
apps :: [#diameter_app{}],
sequence :: diameter:sequence(),
+ counters :: boolean(),
codec :: #{decode_format := diameter:decode_format(),
string_decode := boolean(),
strict_arities => diameter:strict_arities(),
@@ -98,12 +99,13 @@
%% ---------------------------------------------------------------------------
make_recvdata([SvcName, PeerT, Apps, SvcOpts | _]) ->
- #{sequence := {_,_} = Mask, spawn_opt := Opts}
+ #{sequence := {_,_} = Mask, spawn_opt := Opts, traffic_counters := B}
= SvcOpts,
{Opts, #recvdata{service_name = SvcName,
peerT = PeerT,
apps = Apps,
sequence = Mask,
+ counters = B,
codec = maps:with([decode_format,
string_decode,
strict_arities,
@@ -186,7 +188,7 @@ incr_error(Dir, Id, TPid) ->
%% ---------------------------------------------------------------------------
-spec incr_rc(send|recv, Pkt, TPid, DictT)
- -> {Counter, non_neg_integer()}
+ -> Counter
| Reason
when Pkt :: #diameter_packet{},
TPid :: pid(),
@@ -197,18 +199,26 @@ incr_error(Dir, Id, TPid) ->
| {'Experimental-Result', integer(), integer()},
Reason :: atom().
-incr_rc(Dir, Pkt, TPid, {_, AppDict, _} = DictT) ->
- try
- incr_result(Dir, Pkt, TPid, DictT)
+incr_rc(Dir, Pkt, TPid, {MsgDict, AppDict, Dict0}) ->
+ incr_rc(Dir, Pkt, TPid, MsgDict, AppDict, Dict0);
+
+incr_rc(Dir, Pkt, TPid, Dict0) ->
+ incr_rc(Dir, Pkt, TPid, Dict0, Dict0, Dict0).
+
+%% incr_rc/6
+
+incr_rc(Dir, Pkt, TPid, MsgDict, AppDict, Dict0) ->
+ try get_result(Dir, MsgDict, Dict0, Pkt) of
+ false ->
+ unknown;
+ Avp ->
+ incr_result(Dir, Avp, Pkt, TPid, AppDict)
catch
exit: {E,_} when E == no_result_code;
E == invalid_error_bit ->
incr(TPid, {msg_id(Pkt#diameter_packet.header, AppDict), Dir, E}),
E
- end;
-
-incr_rc(Dir, Pkt, TPid, Dict0) ->
- incr_rc(Dir, Pkt, TPid, {Dict0, Dict0, Dict0}).
+ end.
%% ---------------------------------------------------------------------------
%% receive_message/5
@@ -220,13 +230,13 @@ incr_rc(Dir, Pkt, TPid, Dict0) ->
-> pid() %% request handler
| boolean() %% answer, known request or not
| discard %% request discarded by MFA
- when Route :: {Handler, RequestRef, Seqs}
+ when Route :: {Handler, RequestRef, TPid}
| Ack,
RecvData :: {[SpawnOpt], #recvdata{}},
SpawnOpt :: term(),
Handler :: pid(),
RequestRef :: reference(),
- Seqs :: {0..16#FFFFFFFF, 0..16#FFFFFFFF},
+ TPid :: pid(),
Ack :: boolean().
receive_message(TPid, Route, Pkt, Dict0, RecvData) ->
@@ -307,14 +317,15 @@ recv_request(Ack,
= Pkt,
Dict0,
#recvdata{peerT = PeerT,
- apps = Apps}
+ apps = Apps,
+ counters = Count}
= RecvData) ->
Ack andalso (TPid ! {handler, self()}),
case diameter_service:find_incoming_app(PeerT, TPid, Id, Apps) of
{#diameter_app{id = Aid, dictionary = AppDict} = App, Caps} ->
- incr(recv, Pkt, TPid, AppDict),
+ Count andalso incr(recv, Pkt, TPid, AppDict),
DecPkt = decode(Aid, AppDict, RecvData, Pkt),
- incr_error(recv, DecPkt, TPid, AppDict),
+ Count andalso incr_error(recv, DecPkt, TPid, AppDict),
send_A(recv_R(App, TPid, Dict0, Caps, RecvData, DecPkt),
TPid,
App,
@@ -327,9 +338,7 @@ recv_request(Ack,
%% A request was sent for an application that is not
%% supported.
RC = 3007,
- Es = Pkt#diameter_packet.errors,
- DecPkt = Pkt#diameter_packet{avps = collect_avps(Pkt),
- errors = [RC | Es]},
+ DecPkt = diameter_codec:collect_avps(Pkt),
send_answer(answer_message(RC, Dict0, Caps, DecPkt),
TPid,
Dict0,
@@ -345,14 +354,6 @@ recv_request(Ack,
decode(Id, Dict, #recvdata{codec = Opts}, Pkt) ->
errors(Id, diameter_codec:decode(Id, Dict, Opts, Pkt)).
-collect_avps(Pkt) ->
- case diameter_codec:collect_avps(Pkt) of
- {_Error, Avps} ->
- Avps;
- Avps ->
- Avps
- end.
-
%% send_A/7
send_A([T | Fs], TPid, App, Dict0, RecvData, DecPkt, Caps) ->
@@ -545,6 +546,7 @@ send_A({call, Opts}, TPid, App, Dict0, RecvData, Pkt, Caps, Fs) ->
MsgDict,
AppDict,
Dict0,
+ RecvData#recvdata.counters,
Fs);
RC ->
send_answer(answer_message(RC, Dict0, Caps, Pkt),
@@ -588,14 +590,22 @@ send_answer(Ans, TPid, MsgDict, AppDict, Dict0, RecvData, DecPkt, Fs) ->
TPid,
RecvData#recvdata.codec,
make_answer_packet(Ans, DecPkt, MsgDict, Dict0)),
- send_answer(Pkt, TPid, MsgDict, AppDict, Dict0, Fs).
+ send_answer(Pkt,
+ TPid,
+ MsgDict,
+ AppDict,
+ Dict0,
+ RecvData#recvdata.counters,
+ Fs).
-%% send_answer/6
+%% send_answer/7
-send_answer(Pkt, TPid, MsgDict, AppDict, Dict0, [EvalPktFs | EvalFs]) ->
+send_answer(Pkt, TPid, MsgDict, AppDict, Dict0, Count, [EvalPktFs | EvalFs]) ->
eval_packet(Pkt, EvalPktFs),
- incr(send, Pkt, TPid, AppDict),
- incr_rc(send, Pkt, TPid, {MsgDict, AppDict, Dict0}), %% count outgoing
+ Count andalso begin
+ incr(send, Pkt, TPid, AppDict),
+ incr_rc(send, Pkt, TPid, MsgDict, AppDict, Dict0)
+ end,
send(TPid, z(Pkt), _Route = self()),
lists:foreach(fun diameter_lib:eval/1, EvalFs).
@@ -1120,48 +1130,31 @@ find_avp(Code, VId, [_ | Avps]) ->
%% Message sent as a header/avps list.
incr_result(send = Dir,
- #diameter_packet{msg = [#diameter_header{} = H | _]}
- = Pkt,
+ Avp,
+ #diameter_packet{msg = [#diameter_header{} = H | _]},
TPid,
- DictT) ->
- incr_res(Dir, Pkt#diameter_packet{header = H}, TPid, DictT);
-
-%% Outgoing message as binary: don't count. (Sending binaries is only
-%% partially supported.)
-incr_result(send, #diameter_packet{header = undefined = No}, _, _) ->
- No;
+ AppDict) ->
+ incr_result(Dir, Avp, H, [], TPid, AppDict);
%% Incoming or outgoing. Outgoing with encode errors never gets here
%% since encode fails.
-incr_result(Dir, Pkt, TPid, DictT) ->
- incr_res(Dir, Pkt, TPid, DictT).
-
-incr_res(Dir,
- #diameter_packet{header = #diameter_header{is_error = E}
- = Hdr,
- errors = Es}
- = Pkt,
- TPid,
- DictT) ->
- {MsgDict, AppDict, Dict0} = DictT,
+incr_result(Dir, Avp, Pkt, TPid, AppDict) ->
+ #diameter_packet{header = H, errors = Es}
+ = Pkt,
+ incr_result(Dir, Avp, H, Es, TPid, AppDict).
+
+%% incr_result/6
+incr_result(Dir, Avp, Hdr, Es, TPid, AppDict) ->
Id = msg_id(Hdr, AppDict),
%% Could be {relay, 0}, in which case the R-bit is redundant since
%% only answers are being counted. Let it be however, so that the
%% same tuple is in both send/recv and result code counters.
%% Count incoming decode errors.
- recv /= Dir orelse [] == Es orelse incr_error(Dir, Id, TPid, AppDict),
-
- %% Exit on a missing result code.
- T = rc_counter(MsgDict, Dir, Pkt),
- T == false andalso ?LOGX(no_result_code, {MsgDict, Dir, Hdr}),
- {Ctr, RC, Avp} = T,
-
- %% Or on an inappropriate value.
- is_result(RC, E, Dict0)
- orelse ?LOGX(invalid_error_bit, {MsgDict, Dir, Hdr, Avp}),
+ send == Dir orelse [] == Es orelse incr_error(Dir, Id, TPid, AppDict),
+ Ctr = rcc(Avp),
incr(TPid, {Id, Dir, Ctr}),
Ctr.
@@ -1206,7 +1199,50 @@ is_result(RC, true, _) ->
incr(TPid, Counter) ->
diameter_stats:incr(Counter, TPid, 1).
-%% rc_counter/3
+%% rcc/1
+
+rcc(#diameter_avp{name = 'Result-Code' = Name, value = V}) ->
+ {Name, head(V)};
+
+rcc(#diameter_avp{name = 'Experimental-Result', value = V}) ->
+ head(V).
+
+%% head/1
+
+head([V|_]) ->
+ V;
+head(V) ->
+ V.
+
+%% rcv/1
+
+rcv(#diameter_avp{name = N, value = V}) ->
+ rcv(N, head(V)).
+
+%% rcv/2
+
+rcv('Experimental-Result', {_,_,N}) ->
+ N;
+
+rcv('Result-Code', N) ->
+ N.
+
+%% get_result/4
+
+%% Message sent as binary: no checks or counting.
+get_result(_, _, _, #diameter_packet{header = undefined}) ->
+ false;
+
+get_result(Dir, MsgDict, Dict0, Pkt) ->
+ Avp = get_result(MsgDict, msg(Dir, Pkt)),
+ Hdr = Pkt#diameter_packet.header,
+ %% Exit on a missing result code or inappropriate value.
+ Avp == false
+ andalso ?LOGX(no_result_code, {MsgDict, Dir, Hdr}),
+ E = Hdr#diameter_header.is_error,
+ is_result(rcv(Avp), E, Dict0)
+ orelse ?LOGX(invalid_error_bit, {MsgDict, Dir, Hdr, Avp}),
+ Avp.
%% RFC 3588, 7.6:
%%
@@ -1214,46 +1250,29 @@ incr(TPid, Counter) ->
%% applications MUST include either one Result-Code AVP or one
%% Experimental-Result AVP.
-rc_counter(Dict, Dir, #diameter_packet{header = H,
- avps = As,
- msg = Msg})
+%% msg/2
+
+msg(Dir, #diameter_packet{header = H,
+ avps = As,
+ msg = Msg})
when Dir == recv; %% decoded incoming
Msg == undefined -> %% relayed outgoing
- rc_counter(Dict, [H|As]);
-
-rc_counter(Dict, _, #diameter_packet{msg = Msg}) ->
- rc_counter(Dict, Msg).
-
-rc_counter(Dict, Msg) ->
- rcc(get_result(Dict, Msg)).
-
-rcc(#diameter_avp{name = 'Result-Code' = Name, value = N} = A)
- when is_integer(N) ->
- {{Name, N}, N, A};
+ [H|As];
-rcc(#diameter_avp{name = 'Result-Code' = Name, value = [N|_]} = A)
- when is_integer(N) ->
- {{Name, N}, N, A};
-
-rcc(#diameter_avp{name = 'Experimental-Result', value = {_,_,N} = T} = A)
- when is_integer(N) ->
- {T, N, A};
-
-rcc(#diameter_avp{name = 'Experimental-Result', value = [{_,_,N} = T|_]} = A)
- when is_integer(N) ->
- {T, N, A};
-
-rcc(_) ->
- false.
+msg(_, #diameter_packet{msg = Msg}) ->
+ Msg.
%% get_result/2
get_result(Dict, Msg) ->
try
[throw(A) || N <- ['Result-Code', 'Experimental-Result'],
- #diameter_avp{} = A <- [get_avp(Dict, N, Msg)]]
+ #diameter_avp{} = A <- [get_avp(Dict, N, Msg)],
+ is_integer(catch rcv(A))],
+ false
catch
- #diameter_avp{} = A -> A
+ #diameter_avp{} = A ->
+ A
end.
x(T) ->
@@ -1377,7 +1396,7 @@ make_opts([T | _], _, _, _, _, _) ->
send_request({{TPid, _Caps} = TC, App}
= Transport,
- #{sequence := Mask}
+ #{sequence := Mask, traffic_counters := Count}
= SvcOpts,
Msg0,
CallOpts,
@@ -1393,9 +1412,15 @@ send_request({{TPid, _Caps} = TC, App}
SvcOpts,
ReqPkt),
eval_packet(EncPkt, Fs),
- T = send_R(ReqPkt, EncPkt, Transport, CallOpts, Caller, SvcName),
+ T = send_R(ReqPkt,
+ EncPkt,
+ Transport,
+ CallOpts,
+ Caller,
+ Count,
+ SvcName),
Ans = recv_answer(SvcName, App, CallOpts, T),
- handle_answer(SvcName, SvcOpts, App, Ans);
+ handle_answer(SvcName, Count, SvcOpts, App, Ans);
{discard, Reason} ->
{error, Reason};
discard ->
@@ -1538,6 +1563,7 @@ send_R(ReqPkt,
{{TPid, _Caps} = TC, #diameter_app{dictionary = AppDict}},
#options{timeout = Timeout},
{Pid, Ref},
+ Count,
SvcName) ->
Req = #request{ref = Ref,
caller = Pid,
@@ -1545,7 +1571,7 @@ send_R(ReqPkt,
peer = TC,
packet = ReqPkt},
- incr(send, EncPkt, TPid, AppDict),
+ Count andalso incr(send, EncPkt, TPid, AppDict),
{TRef, MRef} = zend_requezt(TPid, EncPkt, Req, SvcName, Timeout),
Pid ! Ref, %% tell caller a send has been attempted
{TRef, MRef, Req}.
@@ -1577,15 +1603,16 @@ failover(SvcName, App, Req, CallOpts) ->
CallOpts,
SvcName).
-%% handle_answer/4
+%% handle_answer/5
-handle_answer(SvcName, _, App, {error, Req, Reason}) ->
+handle_answer(SvcName, _, _, App, {error, Req, Reason}) ->
#request{packet = Pkt,
peer = {_TPid, _Caps} = TC}
= Req,
cb(App, handle_error, [Reason, msg(Pkt), SvcName, TC]);
handle_answer(SvcName,
+ Count,
SvcOpts,
#diameter_app{id = Id,
dictionary = AppDict,
@@ -1599,43 +1626,50 @@ handle_answer(SvcName,
#request{peer = {TPid, _}}
= Req,
- incr(recv, DecPkt, TPid, AppDict),
-
- AnsPkt = try
- incr_result(recv, DecPkt, TPid, {MsgDict, AppDict, Dict0})
- of
- _ -> DecPkt
- catch
- exit: {no_result_code, _} ->
- %% RFC 6733 requires one of Result-Code or
- %% Experimental-Result, but the decode will have
- %% detected a missing AVP. If both are optional in
- %% the dictionary then this isn't a decode error:
- %% just continue on.
- DecPkt;
- exit: {invalid_error_bit, {_, _, _, Avp}} ->
- #diameter_packet{errors = Es}
- = DecPkt,
- E = {5004, Avp},
- DecPkt#diameter_packet{errors = [E|Es]}
- end,
-
- handle_answer(AnsPkt, SvcName, App, AE, Req).
+ answer(answer(DecPkt, TPid, MsgDict, AppDict, Dict0, Count),
+ SvcName,
+ App,
+ AE,
+ Req).
+
+%% answer/6
+
+answer(DecPkt, TPid, MsgDict, AppDict, Dict0, Count) ->
+ Count andalso incr(recv, DecPkt, TPid, AppDict),
+ try get_result(recv, MsgDict, Dict0, DecPkt) of
+ Avp ->
+ Count andalso false /= Avp
+ andalso incr_result(recv, Avp, DecPkt, TPid, AppDict),
+ DecPkt
+ catch
+ exit: {no_result_code, _} ->
+ %% RFC 6733 requires one of Result-Code or
+ %% Experimental-Result, but the decode will have
+ %% detected a missing AVP. If both are optional in
+ %% the dictionary then this isn't a decode error:
+ %% just continue on.
+ DecPkt;
+ exit: {invalid_error_bit, {_, _, _, Avp}} ->
+ #diameter_packet{errors = Es}
+ = DecPkt,
+ E = {5004, Avp},
+ DecPkt#diameter_packet{errors = [E|Es]}
+ end.
-%% handle_answer/5
+%% answer/5
-handle_answer(#diameter_packet{errors = Es}
- = Pkt,
- SvcName,
- App,
- AE,
- #request{peer = {_TPid, _Caps} = TC,
- packet = P})
+answer(#diameter_packet{errors = Es}
+ = Pkt,
+ SvcName,
+ App,
+ AE,
+ #request{peer = {_TPid, _Caps} = TC,
+ packet = P})
when callback == AE;
[] == Es ->
cb(App, handle_answer, [Pkt, msg(P), SvcName, TC]);
-handle_answer(#diameter_packet{header = H}, SvcName, _, AE, _) ->
+answer(#diameter_packet{header = H}, SvcName, _, AE, _) ->
handle_error(H, SvcName, AE).
%% handle_error/3
@@ -1848,10 +1882,8 @@ get_destination(Dict, Msg) ->
[str(get_avp_value(Dict, D, Msg)) || D <- ['Destination-Realm',
'Destination-Host']].
-%% This is not entirely correct. The avp could have an arity 1, in
-%% which case an empty list is a DiameterIdentity of length 0 rather
-%% than the list of no values we treat it as by mapping to undefined.
-%% This behaviour is documented.
+%% A DiameterIdentity has length at least one, so an empty list is not
+%% a Realm/Host.
str([]) ->
undefined;
str(T) ->
@@ -1881,10 +1913,8 @@ get_avp(?RELAY, Name, Msg) ->
get_avp(Dict, Name, [#diameter_header{} | Avps]) ->
try
{Code, _, VId} = Dict:avp_header(Name),
- find_avp(Code, VId, Avps)
- of
- A ->
- (avp_decode(Dict, Name, ungroup(A)))#diameter_avp{name = Name}
+ A = find_avp(Code, VId, Avps),
+ (avp_decode(Dict, Name, ungroup(A)))#diameter_avp{name = Name}
catch
error: _ ->
undefined
@@ -1941,13 +1971,8 @@ avp_decode(Dict, Name, #diameter_avp{value = undefined,
data = Bin}
= Avp)
when is_binary(Bin) ->
- try Dict:avp(decode, Bin, Name, decode_opts(Dict)) of
- V ->
- Avp#diameter_avp{value = V}
- catch
- error:_ ->
- Avp
- end;
+ V = Dict:avp(decode, Bin, Name, decode_opts(Dict)),
+ Avp#diameter_avp{value = V};
avp_decode(_, _, #diameter_avp{} = Avp) ->
Avp.