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-rw-r--r--lib/diameter/src/base/diameter_service.erl247
1 files changed, 156 insertions, 91 deletions
diff --git a/lib/diameter/src/base/diameter_service.erl b/lib/diameter/src/base/diameter_service.erl
index 725cccda1e..9955df42f0 100644
--- a/lib/diameter/src/base/diameter_service.erl
+++ b/lib/diameter/src/base/diameter_service.erl
@@ -236,12 +236,12 @@ stop_transport(SvcName, [_|_] = Refs) ->
%%% ---------------------------------------------------------------------------
info(SvcName, Item) ->
- info_rc(call_service_by_name(SvcName, {info, Item})).
-
-info_rc({error, _}) ->
- undefined;
-info_rc(Info) ->
- Info.
+ case ets:lookup(?STATE_TABLE, SvcName) of
+ [] ->
+ undefined;
+ [S] ->
+ service_info(Item, S)
+ end.
%%% ---------------------------------------------------------------------------
%%% # receive_message(TPid, Pkt, MessageData)
@@ -462,6 +462,7 @@ handle_call({pick_peer, Local, Remote, App}, _From, S) ->
handle_call({call_module, AppMod, Req}, From, S) ->
call_module(AppMod, Req, From, S);
+%% Call from old code.
handle_call({info, Item}, _From, S) ->
{reply, service_info(Item, S), S};
@@ -979,10 +980,9 @@ connection_up(T, P, C, #state{peerT = PeerT,
insert(PeerT, P#peer{op_state = {?STATE_UP, ?WD_OKAY}}),
request_peer_up(TPid),
+ insert_local_peer(SApps, {{TPid, Caps}, {SvcName, Apps}}, LDict),
report_status(up, P, C, S, T),
- S#state{local_peers = insert_local_peer(SApps,
- {{TPid, Caps}, {SvcName, Apps}},
- LDict)}.
+ S.
insert_local_peer(SApps, T, LDict) ->
lists:foldl(fun(A,D) -> ilp(A, T, D) end, LDict, SApps).
@@ -1058,12 +1058,9 @@ connection_down(#peer{conn = TPid,
local_peers = LDict}
= S) ->
report_status(down, P, C, S, []),
- NewS = S#state{local_peers
- = remove_local_peer(SApps,
- {{TPid, Caps}, {SvcName, Apps}},
- LDict)},
- request_peer_down(TPid, NewS),
- NewS.
+ remove_local_peer(SApps, {{TPid, Caps}, {SvcName, Apps}}, LDict),
+ request_peer_down(TPid, S),
+ S.
remove_local_peer(SApps, T, LDict) ->
lists:foldl(fun(A,D) -> rlp(A, T, D) end, LDict, SApps).
@@ -1301,28 +1298,34 @@ cm([_,_|_], _, _, _) ->
%% The mod field of the #diameter_app{} here includes any extra
%% arguments passed to diameter:call/2.
-send_request({TPid, Caps, App}, Msg, Opts, Caller, SvcName) ->
+send_request({TPid, Caps, App} = T, Msg, Opts, Caller, SvcName) ->
#diameter_app{module = ModX}
= App,
Pkt = make_request_packet(Msg),
- case cb(ModX, prepare_request, [Pkt, SvcName, {TPid, Caps}]) of
- {send, P} ->
- send_request(make_request_packet(P, Pkt),
- TPid,
- Caps,
- App,
- Opts,
- Caller,
- SvcName);
- {discard, Reason} ->
- {error, Reason};
- discard ->
- {error, discarded};
- T ->
- ?ERROR({invalid_return, prepare_request, App, T})
- end.
+ send_req(cb(ModX, prepare_request, [Pkt, SvcName, {TPid, Caps}]),
+ Pkt,
+ T,
+ Opts,
+ Caller,
+ SvcName,
+ []).
+
+send_req({send, P}, Pkt, T, Opts, Caller, SvcName, Fs) ->
+ send_request(make_request_packet(P, Pkt), T, Opts, Caller, SvcName, Fs);
+
+send_req({discard, Reason} , _, _, _, _, _, _) ->
+ {error, Reason};
+
+send_req(discard, _, _, _, _, _, _) ->
+ {error, discarded};
+
+send_req({eval_packet, RC, F}, Pkt, T, Opts, Caller, SvcName, Fs) ->
+ send_req(RC, Pkt, T, Opts, Caller, SvcName, [F|Fs]);
+
+send_req(E, _, {_, _, App}, _, _, _, _) ->
+ ?ERROR({invalid_return, prepare_request, App, E}).
%% make_request_packet/1
%%
@@ -1400,16 +1403,16 @@ fold_record(undefined, R) ->
fold_record(Rec, R) ->
diameter_lib:fold_tuple(2, Rec, R).
-%% send_request/7
+%% send_request/6
-send_request(Pkt, TPid, Caps, App, Opts, Caller, SvcName) ->
+send_request(Pkt, {TPid, Caps, App}, Opts, Caller, SvcName, Fs) ->
#diameter_app{alias = Alias,
dictionary = Dict,
module = ModX,
options = [{answer_errors, AE} | _]}
= App,
- EPkt = encode(Dict, Pkt),
+ EPkt = encode(Dict, Pkt, Fs),
#options{filter = Filter,
timeout = Timeout}
@@ -1490,6 +1493,13 @@ msg(#diameter_packet{msg = undefined, bin = Bin}) ->
msg(#diameter_packet{msg = Msg}) ->
Msg.
+%% encode/3
+
+encode(Dict, Pkt, Fs) ->
+ P = encode(Dict, Pkt),
+ eval_packet(P, Fs),
+ P.
+
%% encode/2
%% Note that prepare_request can return a diameter_packet containing
@@ -1571,38 +1581,47 @@ send(Pid, Pkt) ->
%% retransmit/4
-retransmit({TPid, Caps, #diameter_app{alias = Alias} = App},
- #request{app = Alias,
- packet = Pkt}
+retransmit({TPid, Caps, #diameter_app{alias = Alias} = App} = T,
+ #request{app = Alias, packet = Pkt}
= Req,
SvcName,
Timeout) ->
have_request(Pkt, TPid) %% Don't failover to a peer we've
andalso ?THROW(timeout), %% already sent to.
- case cb(App, prepare_retransmit, [Pkt, SvcName, {TPid, Caps}]) of
- {send, P} ->
- retransmit(make_request_packet(P, Pkt), TPid, Caps, Req, Timeout);
- {discard, Reason} ->
- ?THROW(Reason);
- discard ->
- ?THROW(discarded);
- T ->
- ?ERROR({invalid_return, prepare_retransmit, App, T})
- end.
+ resend_req(cb(App, prepare_retransmit, [Pkt, SvcName, {TPid, Caps}]),
+ T,
+ Req,
+ Timeout,
+ []).
+
+resend_req({send, P}, T, #request{packet = Pkt} = Req, Timeout, Fs) ->
+ retransmit(make_request_packet(P, Pkt), T, Req, Timeout, Fs);
-%% retransmit/5
+resend_req({discard, Reason}, _, _, _, _) ->
+ ?THROW(Reason);
-retransmit(Pkt, TPid, Caps, #request{dictionary = Dict} = Req, Timeout) ->
- EPkt = encode(Dict, Pkt),
+resend_req(discard, _, _, _, _) ->
+ ?THROW(discarded);
+
+resend_req({eval_packet, RC, F}, T, Req, Timeout, Fs) ->
+ resend_req(RC, T, Req, Timeout, [F|Fs]);
+
+resend_req(T, {_, _, App}, _, _, _) ->
+ ?ERROR({invalid_return, prepare_retransmit, App, T}).
- NewReq = Req#request{transport = TPid,
- packet = Pkt,
- caps = Caps},
+%% retransmit/6
- ?LOG(retransmission, NewReq),
- TRef = send_request(TPid, EPkt, NewReq, Timeout),
- {TRef, NewReq}.
+retransmit(Pkt, {TPid, Caps, _}, #request{dictionary = D} = Req0, Tmo, Fs) ->
+ EPkt = encode(D, Pkt, Fs),
+
+ Req = Req0#request{transport = TPid,
+ packet = Pkt,
+ caps = Caps},
+
+ ?LOG(retransmission, Req),
+ TRef = send_request(TPid, EPkt, Req, Tmo),
+ {TRef, Req}.
%% store_request/4
@@ -1805,7 +1824,12 @@ recv_request(T, TC, App, Pkt) ->
%% (3xxx) errors that lead to an answer-message.
request_cb({SvcName, _OH, _OR} = T, TC, App, Pkt) ->
- request_cb(cb(App, handle_request, [Pkt, SvcName, TC]), App, T, TC, Pkt).
+ request_cb(cb(App, handle_request, [Pkt, SvcName, TC]),
+ App,
+ T,
+ TC,
+ [],
+ Pkt).
%% examine/1
%%
@@ -1825,7 +1849,7 @@ examine(#diameter_packet{errors = Es} = Pkt) ->
Pkt#diameter_packet{errors = [5011 | Es]}.
%% It's odd/unfortunate that this isn't a protocol error.
-%% request_cb/5
+%% request_cb/6
%% A reply may be an answer-message, constructed either here or by
%% the handle_request callback. The header from the incoming request
@@ -1836,20 +1860,21 @@ request_cb({reply, Ans},
#diameter_app{dictionary = Dict},
_,
{TPid, _},
+ Fs,
Pkt) ->
- reply(Ans, Dict, TPid, Pkt);
+ reply(Ans, Dict, TPid, Fs, Pkt);
%% An 3xxx result code, for which the E-bit is set in the header.
-request_cb({protocol_error, RC}, _, T, {TPid, _}, Pkt)
+request_cb({protocol_error, RC}, _, T, {TPid, _}, Fs, Pkt)
when 3000 =< RC, RC < 4000 ->
- protocol_error(RC, T, TPid, Pkt);
+ protocol_error(RC, T, TPid, Fs, Pkt);
%% RFC 3588 says we must reply 3001 to anything unrecognized or
%% unsupported. 'noreply' is undocumented (and inappropriately named)
%% backwards compatibility for this, protocol_error the documented
%% alternative.
-request_cb(noreply, _, T, {TPid, _}, Pkt) ->
- protocol_error(3001, T, TPid, Pkt);
+request_cb(noreply, _, T, {TPid, _}, Fs, Pkt) ->
+ protocol_error(3001, T, TPid, Fs, Pkt);
%% Relay a request to another peer. This is equivalent to doing an
%% explicit call/4 with the message in question except that (1) a loop
@@ -1871,26 +1896,36 @@ request_cb({A, Opts},
= App,
T,
TC,
+ Fs,
Pkt)
when A == relay, Id == ?APP_ID_RELAY;
A == proxy, Id /= ?APP_ID_RELAY;
A == resend ->
- resend(Opts, App, T, TC, Pkt);
+ resend(Opts, App, T, TC, Fs, Pkt);
-request_cb(discard, _, _, _, _) ->
+request_cb(discard, _, _, _, _, _) ->
ok;
-request_cb({eval, RC, F}, App, T, TC, Pkt) ->
- request_cb(RC, App, T, TC, Pkt),
+request_cb({eval_packet, RC, F}, App, T, TC, Fs, Pkt) ->
+ request_cb(RC, App, T, TC, [F|Fs], Pkt);
+
+request_cb({eval, RC, F}, App, T, TC, Fs, Pkt) ->
+ request_cb(RC, App, T, TC, Pkt, Fs),
diameter_lib:eval(F).
-%% protocol_error/4
+%% protocol_error/5
-protocol_error(RC, {_, OH, OR}, TPid, #diameter_packet{avps = Avps} = Pkt) ->
+protocol_error(RC, {_, OH, OR}, TPid, Fs, Pkt) ->
+ #diameter_packet{avps = Avps} = Pkt,
?LOG({error, RC}, Pkt),
- reply(answer_message({OH, OR, RC}, Avps), ?BASE, TPid, Pkt).
+ reply(answer_message({OH, OR, RC}, Avps), ?BASE, TPid, Fs, Pkt).
-%% resend/5
+%% protocol_error/4
+
+protocol_error(RC, T, TPid, Pkt) ->
+ protocol_error(RC, T, TPid, [], Pkt).
+
+%% resend/6
%%
%% Resend a message as a relay or proxy agent.
@@ -1898,9 +1933,12 @@ resend(Opts,
#diameter_app{} = App,
{_SvcName, OH, _OR} = T,
{_TPid, _Caps} = TC,
+ Fs,
#diameter_packet{avps = Avps} = Pkt) ->
{Code, _Flags, Vid} = ?BASE:avp_header('Route-Record'),
- resend(is_loop(Code, Vid, OH, Avps), Opts, App, T, TC, Pkt).
+ resend(is_loop(Code, Vid, OH, Avps), Opts, App, T, TC, Fs, Pkt).
+
+%% resend/7
%% DIAMETER_LOOP_DETECTED 3005
%% An agent detected a loop while trying to get the message to the
@@ -1908,8 +1946,8 @@ resend(Opts,
%% if one is available, but the peer reporting the error has
%% identified a configuration problem.
-resend(true, _, _, T, {TPid, _}, Pkt) -> %% Route-Record loop
- protocol_error(3005, T, TPid, Pkt);
+resend(true, _, _, T, {TPid, _}, Fs, Pkt) -> %% Route-Record loop
+ protocol_error(3005, T, TPid, Fs, Pkt);
%% 6.1.8. Relaying and Proxying Requests
%%
@@ -1922,6 +1960,7 @@ resend(false,
App,
{SvcName, _, _} = T,
{TPid, #diameter_caps{origin_host = {_, OH}}},
+ Fs,
#diameter_packet{header = Hdr0,
avps = Avps}
= Pkt) ->
@@ -1929,7 +1968,7 @@ resend(false,
Seq = diameter_session:sequence(),
Hdr = Hdr0#diameter_header{hop_by_hop_id = Seq},
Msg = [Hdr, Route | Avps],
- resend(call(SvcName, App, Msg, Opts), T, TPid, Pkt).
+ resend(call(SvcName, App, Msg, Opts), T, TPid, Fs, Pkt).
%% The incoming request is relayed with the addition of a
%% Route-Record. Note the requirement on the return from call/4 below,
%% which places a requirement on the value returned by the
@@ -1955,15 +1994,18 @@ resend(#diameter_packet{bin = B}
= Pkt,
_,
TPid,
+ Fs,
#diameter_packet{header = #diameter_header{hop_by_hop_id = Id},
transport_data = TD}) ->
- send(TPid, Pkt#diameter_packet{bin = diameter_codec:hop_by_hop_id(Id, B),
- transport_data = TD});
+ P = Pkt#diameter_packet{bin = diameter_codec:hop_by_hop_id(Id, B),
+ transport_data = TD},
+ eval_packet(P, Fs),
+ send(TPid, P);
%% TODO: counters
%% Or not: DIAMETER_UNABLE_TO_DELIVER.
-resend(_, T, TPid, Pkt) ->
- protocol_error(3002, T, TPid, Pkt).
+resend(_, T, TPid, Fs, Pkt) ->
+ protocol_error(3002, T, TPid, Fs, Pkt).
%% is_loop/4
%%
@@ -1985,33 +2027,38 @@ is_loop(Code, Vid, OH, [_ | Avps])
is_loop(Code, Vid, OH, Avps) ->
is_loop(Code, Vid, ?BASE:avp(encode, OH, 'Route-Record'), Avps).
-%% reply/4
+%% reply/5
%%
%% Send a locally originating reply.
%% Skip the setting of Result-Code and Failed-AVP's below.
-reply([Msg], Dict, TPid, Pkt)
+reply([Msg], Dict, TPid, Fs, Pkt)
when is_list(Msg);
is_tuple(Msg) ->
- reply(Msg, Dict, TPid, Pkt#diameter_packet{errors = []});
+ reply(Msg, Dict, TPid, Fs, Pkt#diameter_packet{errors = []});
%% No errors or a diameter_header/avp list.
-reply(Msg, Dict, TPid, #diameter_packet{errors = Es,
- transport_data = TD}
- = ReqPkt)
+reply(Msg, Dict, TPid, Fs, #diameter_packet{errors = Es,
+ transport_data = TD}
+ = ReqPkt)
when [] == Es;
is_record(hd(Msg), diameter_header) ->
Pkt = diameter_codec:encode(Dict, make_answer_packet(Msg, ReqPkt)),
+ eval_packet(Pkt, Fs),
incr(send, Pkt, Dict, TPid), %% count result codes in sent answers
send(TPid, Pkt#diameter_packet{transport_data = TD});
%% Or not: set Result-Code and Failed-AVP AVP's.
-reply(Msg, Dict, TPid, #diameter_packet{errors = [H|_] = Es} = Pkt) ->
+reply(Msg, Dict, TPid, Fs, #diameter_packet{errors = [H|_] = Es} = Pkt) ->
reply(rc(Msg, rc(H), [A || {_,A} <- Es], Dict),
Dict,
TPid,
+ Fs,
Pkt#diameter_packet{errors = []}).
+eval_packet(Pkt, Fs) ->
+ lists:foreach(fun(F) -> diameter_lib:eval([F,Pkt]) end, Fs).
+
%% make_answer_packet/2
%% Binaries and header/avp lists are sent as-is.
@@ -2955,7 +3002,12 @@ info_stats(#state{peerT = PeerT}) ->
MatchSpec = [{#peer{ref = '$1', conn = '$2', _ = '_'},
[{'is_pid', '$2'}],
[['$1', '$2']]}],
- diameter_stats:read(lists:append(ets:select(PeerT, MatchSpec))).
+ try ets:select(PeerT, MatchSpec) of
+ L ->
+ diameter_stats:read(lists:append(L))
+ catch
+ error: badarg -> [] %% service has gone down
+ end.
%% info_transport/1
%%
@@ -3000,7 +3052,12 @@ transport([[{type, accept}, {options, Opts} | _] | _] = Ls) ->
{accept, [lists:nthtail(2,L) || L <- Ls]}].
peer_dict(#state{peerT = PeerT, connT = ConnT}, Dict0) ->
- ets:foldl(fun(T,A) -> peer_acc(ConnT, A, T) end, Dict0, PeerT).
+ try ets:tab2list(PeerT) of
+ L ->
+ lists:foldl(fun(T,A) -> peer_acc(ConnT, A, T) end, Dict0, L)
+ catch
+ error: badarg -> Dict0 %% service has gone down
+ end.
peer_acc(ConnT, Acc, #peer{pid = Pid,
type = Type,
@@ -3019,7 +3076,11 @@ peer_acc(ConnT, Acc, #peer{pid = Pid,
info_conn(ConnT, TPid, true)
when is_pid(TPid) ->
- info_conn(ets:lookup(ConnT, TPid));
+ try ets:lookup(ConnT, TPid) of
+ T -> info_conn(T)
+ catch
+ error: badarg -> [] %% service has gone down
+ end;
info_conn(_, _, _) ->
[].
@@ -3096,7 +3157,11 @@ info_pending(#state{} = S) ->
{{transport, '$2'}},
{{from, '$3'}}]}}]}],
- ets:select(?REQUEST_TABLE, MatchSpec).
+ try
+ ets:select(?REQUEST_TABLE, MatchSpec)
+ catch
+ error: badarg -> [] %% service has gone down
+ end.
%% info_connections/1
%%
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-07 08:51:23 +0000