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-rw-r--r--lib/diameter/doc/src/diameter.xml13
-rw-r--r--lib/diameter/src/base/diameter.erl1
-rw-r--r--lib/diameter/src/base/diameter_service.erl17
-rw-r--r--lib/diameter/src/base/diameter_traffic.erl44
-rw-r--r--lib/diameter/test/diameter_dpr_SUITE.erl113
5 files changed, 142 insertions, 46 deletions
diff --git a/lib/diameter/doc/src/diameter.xml b/lib/diameter/doc/src/diameter.xml
index 72181a42b0..2cbe48ecce 100644
--- a/lib/diameter/doc/src/diameter.xml
+++ b/lib/diameter/doc/src/diameter.xml
@@ -21,7 +21,7 @@
<copyright>
<year>2011</year>
-<year>2016</year>
+<year>2017</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -300,6 +300,17 @@ corresponding list of filters.
Defaults to <c>none</c>.</p>
</item>
+<tag><c>{peer, &app_peer_ref;}</c></tag>
+<item>
+<p>
+Peer to which the request in question can be sent, preempting the
+selection of peers having advertised support for the Diameter
+application in question.
+Multiple options can be specified, and their order is
+respected in the candidate lists passed to a subsequent
+&app_pick_peer; callback.</p>
+</item>
+
<tag><c>{timeout, &dict_Unsigned32;}</c></tag>
<item>
<p>
diff --git a/lib/diameter/src/base/diameter.erl b/lib/diameter/src/base/diameter.erl
index 253f64133c..bd92e16fba 100644
--- a/lib/diameter/src/base/diameter.erl
+++ b/lib/diameter/src/base/diameter.erl
@@ -406,4 +406,5 @@ call(SvcName, App, Message) ->
:: {extra, list()}
| {filter, peer_filter()}
| {timeout, 'Unsigned32'()}
+ | {peer, peer_ref()}
| detach.
diff --git a/lib/diameter/src/base/diameter_service.erl b/lib/diameter/src/base/diameter_service.erl
index be50e87179..4fc49309b5 100644
--- a/lib/diameter/src/base/diameter_service.erl
+++ b/lib/diameter/src/base/diameter_service.erl
@@ -282,7 +282,8 @@ whois(SvcName) ->
| {alias, diameter:app_alias()},
Opts :: {fun((Dict :: module()) -> [term()]),
diameter:peer_filter(),
- Xtra :: list()},
+ Xtra :: list(),
+ [diameter:peer_ref()]},
TPid :: pid(),
Caps :: #diameter_caps{},
App :: #diameter_app{},
@@ -310,10 +311,10 @@ pick(#state{options = SvcOpts}
= S,
#diameter_app{module = ModX, dictionary = Dict}
= App0,
- {DestF, Filter, Xtra}) ->
+ {DestF, Filter, Xtra, TPids}) ->
App = App0#diameter_app{module = ModX ++ Xtra},
[_,_] = RealmAndHost = diameter_lib:eval([DestF, Dict]),
- case pick_peer(App, RealmAndHost, Filter, S) of
+ case pick_peer(App, RealmAndHost, [Filter | TPids], S) of
{_TPid, _Caps} = TC ->
{{TC, App}, SvcOpts};
false = No ->
@@ -1522,8 +1523,14 @@ pick_peer(Local,
%% peers/4
-peers(Alias, RH, Filter, T) ->
- filter(Alias, RH, Filter, T, true).
+%% No peer options pointing at specific peers: search for them.
+peers(Alias, RH, [Filter], T) ->
+ filter(Alias, RH, Filter, T, true);
+
+%% Or just lookup.
+peers(_Alias, RH, [Filter | TPids], {PeerT, _AppT, _IdentT}) ->
+ {Ts, _} = filter(caps(PeerT, TPids), RH, Filter),
+ Ts.
%% filter/5
%%
diff --git a/lib/diameter/src/base/diameter_traffic.erl b/lib/diameter/src/base/diameter_traffic.erl
index 54f39afbf0..7a5a3d662a 100644
--- a/lib/diameter/src/base/diameter_traffic.erl
+++ b/lib/diameter/src/base/diameter_traffic.erl
@@ -64,7 +64,8 @@
%% Record diameter:call/4 options are parsed into.
-record(options,
- {filter = none :: diameter:peer_filter(),
+ {peers = [] :: [diameter:peer_ref()],
+ filter = none :: diameter:peer_filter(),
extra = [] :: list(),
timeout = 5000 :: 0..16#FFFFFFFF, %% for outgoing requests
detach = false :: boolean()}).
@@ -1275,36 +1276,41 @@ send_R(SvcName, AppOrAlias, Msg, CallOpts, Caller) ->
%% make_options/1
make_options(Options) ->
- make_opts(Options, false, [], none, 5000).
+ make_opts(Options, [], false, [], none, 5000).
%% Do our own recursion since this is faster than a lists:foldl/3
%% setting elements in an #options{} accumulator.
-make_opts([], Detach, Extra, Filter, Tmo) ->
- #options{detach = Detach,
+make_opts([], Peers, Detach, Extra, Filter, Tmo) ->
+ #options{peers = lists:reverse(Peers),
+ detach = Detach,
extra = Extra,
filter = Filter,
timeout = Tmo};
-make_opts([{timeout, Tmo} | Rest], Detach, Extra, Filter, _)
+make_opts([{timeout, Tmo} | Rest], Peers, Detach, Extra, Filter, _)
when is_integer(Tmo), 0 =< Tmo ->
- make_opts(Rest, Detach, Extra, Filter, Tmo);
+ make_opts(Rest, Peers, Detach, Extra, Filter, Tmo);
-make_opts([{filter, F} | Rest], Detach, Extra, none, Tmo) ->
- make_opts(Rest, Detach, Extra, F, Tmo);
-make_opts([{filter, F} | Rest], Detach, Extra, {all, Fs}, Tmo) ->
- make_opts(Rest, Detach, Extra, {all, [F|Fs]}, Tmo);
-make_opts([{filter, F} | Rest], Detach, Extra, F0, Tmo) ->
- make_opts(Rest, Detach, Extra, {all, [F0, F]}, Tmo);
+make_opts([{filter, F} | Rest], Peers, Detach, Extra, none, Tmo) ->
+ make_opts(Rest, Peers, Detach, Extra, F, Tmo);
+make_opts([{filter, F} | Rest], Peers, Detach, Extra, {all, Fs}, Tmo) ->
+ make_opts(Rest, Peers, Detach, Extra, {all, [F|Fs]}, Tmo);
+make_opts([{filter, F} | Rest], Peers, Detach, Extra, F0, Tmo) ->
+ make_opts(Rest, Peers, Detach, Extra, {all, [F0, F]}, Tmo);
-make_opts([{extra, L} | Rest], Detach, Extra, Filter, Tmo)
+make_opts([{extra, L} | Rest], Peers, Detach, Extra, Filter, Tmo)
when is_list(L) ->
- make_opts(Rest, Detach, Extra ++ L, Filter, Tmo);
+ make_opts(Rest, Peers, Detach, Extra ++ L, Filter, Tmo);
-make_opts([detach | Rest], _, Extra, Filter, Tmo) ->
- make_opts(Rest, true, Extra, Filter, Tmo);
+make_opts([detach | Rest], Peers, _, Extra, Filter, Tmo) ->
+ make_opts(Rest, Peers, true, Extra, Filter, Tmo);
-make_opts([T | _], _, _, _, _) ->
+make_opts([{peer, TPid} | Rest], Peers, Detach, Extra, Filter, Tmo)
+ when is_pid(TPid) ->
+ make_opts(Rest, [TPid | Peers], Detach, Extra, Filter, Tmo);
+
+make_opts([T | _], _, _, _, _, _) ->
?ERROR({invalid_option, T}).
%% ---------------------------------------------------------------------------
@@ -1654,8 +1660,8 @@ pick_peer(_, _, undefined, _) ->
pick_peer(SvcName,
AppOrAlias,
Msg,
- #options{filter = Filter, extra = Xtra}) ->
- X = {fun(D) -> get_destination(D, Msg) end, Filter, Xtra},
+ #options{peers = TPids, filter = Filter, extra = Xtra}) ->
+ X = {fun(D) -> get_destination(D, Msg) end, Filter, Xtra, TPids},
case diameter_service:pick_peer(SvcName, AppOrAlias, X) of
false ->
{error, no_connection};
diff --git a/lib/diameter/test/diameter_dpr_SUITE.erl b/lib/diameter/test/diameter_dpr_SUITE.erl
index 55702fbf78..779b919d3c 100644
--- a/lib/diameter/test/diameter_dpr_SUITE.erl
+++ b/lib/diameter/test/diameter_dpr_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2012-2015. All Rights Reserved.
+%% Copyright Ericsson AB 2012-2017. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -27,6 +27,8 @@
-export([suite/0,
all/0,
groups/0,
+ init_per_suite/1,
+ end_per_suite/1,
init_per_group/2,
end_per_group/2]).
@@ -56,16 +58,12 @@
%% Config for diameter:start_service/2.
-define(SERVICE(Host),
- [{'Origin-Host', Host},
+ [{'Origin-Host', Host ++ ".erlang.org"},
{'Origin-Realm', "erlang.org"},
{'Host-IP-Address', [?ADDR]},
{'Vendor-Id', hd(Host)}, %% match this in disconnect/5
{'Product-Name', "OTP/diameter"},
- {'Acct-Application-Id', [0]},
- {restrict_connections, false},
- {application, [{dictionary, diameter_gen_base_rfc6733},
- {alias, common},
- {module, #diameter_callback{_ = false}}]}]).
+ {restrict_connections, false}]).
%% Disconnect reasons that diameter passes as the first argument of a
%% function configured as disconnect_cb.
@@ -89,13 +87,19 @@ suite() ->
[{timetrap, {seconds, 60}}].
all() ->
- [start, send_dpr, stop | [{group, R} || R <- ?REASONS]].
+ [{group, R} || R <- [client, server, uncommon | ?REASONS]].
%% The group determines how transports are terminated: by remove_transport,
%% stop_service or application stop.
groups() ->
- Ts = tc(),
- [{R, [], Ts} || R <- ?REASONS].
+ [{R, [], [start, send_dpr, stop]} || R <- [client, server, uncommon]]
+ ++ [{R, [], Ts} || Ts <- [tc()], R <- ?REASONS].
+
+init_per_suite(Config) -> %% not need, but a useful place to enable trace
+ Config.
+
+end_per_suite(_Config) ->
+ ok.
init_per_group(Name, Config) ->
[{group, Name} | Config].
@@ -107,29 +111,86 @@ tc() ->
[start, connect, remove_transport, stop_service, check, stop].
%% ===========================================================================
-%% start/stop testcases
-start(_Config) ->
- ok = diameter:start(),
- ok = diameter:start_service(?SERVER, ?SERVICE(?SERVER)),
- ok = diameter:start_service(?CLIENT, ?SERVICE(?CLIENT)).
+%% start/1
-send_dpr(_Config) ->
+start(Config)
+ when is_list(Config) ->
+ Grp = group(Config),
+ ok = diameter:start(),
+ ok = diameter:start_service(?SERVER, service(?SERVER, Grp)),
+ ok = diameter:start_service(?CLIENT, service(?CLIENT, Grp)).
+
+service(?SERVER = Svc, _) ->
+ ?SERVICE(Svc)
+ ++ [{'Acct-Application-Id', [0,3]},
+ {application, [{dictionary, diameter_gen_base_rfc6733},
+ {alias, common},
+ {module, #diameter_callback{_ = false}}]},
+ {application, [{dictionary, diameter_gen_acct_rfc6733},
+ {alias, acct},
+ {module, #diameter_callback{_ = false}}]}];
+
+%% Client that receives a server DPR despite no explicit support for
+%% Diameter common messages.
+service(?CLIENT = Svc, server) ->
+ ?SERVICE(Svc)
+ ++ [{'Acct-Application-Id', [3]},
+ {application, [{dictionary, diameter_gen_acct_rfc6733},
+ {alias, acct},
+ {module, #diameter_callback{_ = false}}]}];
+
+%% Client that sends DPR despite advertised only the accounting
+%% application. The dictionary is required for encode.
+service(?CLIENT = Svc, uncommon) ->
+ ?SERVICE(Svc)
+ ++ [{'Acct-Application-Id', [3]},
+ {application, [{dictionary, diameter_gen_base_rfc6733},
+ {alias, common},
+ {module, #diameter_callback{_ = false}}]},
+ {application, [{dictionary, diameter_gen_acct_rfc6733},
+ {alias, acct},
+ {module, #diameter_callback{_ = false}}]}];
+
+service(?CLIENT = Svc, _) ->
+ ?SERVICE(Svc)
+ ++ [{'Auth-Application-Id', [0]},
+ {application, [{dictionary, diameter_gen_base_rfc6733},
+ {alias, common},
+ {module, #diameter_callback{_ = false}}]}].
+
+%% send_dpr/1
+
+send_dpr(Config) ->
LRef = ?util:listen(?SERVER, tcp),
Ref = ?util:connect(?CLIENT, tcp, LRef, [{dpa_timeout, 10000}]),
+ Svc = sender(group(Config)),
+ [Info] = diameter:service_info(Svc, connections),
+ {_, {TPid, _}} = lists:keyfind(peer, 1, Info),
#diameter_base_DPA{'Result-Code' = 2001}
- = diameter:call(?CLIENT,
+ = diameter:call(Svc,
common,
- ['DPR', {'Origin-Host', "CLIENT.erlang.org"},
- {'Origin-Realm', "erlang.org"},
- {'Disconnect-Cause', 0}]),
- ok = receive %% endure the transport dies on DPA
+ ['DPR', {'Origin-Host', Svc ++ ".erlang.org"},
+ {'Origin-Realm', "erlang.org"},
+ {'Disconnect-Cause', 0}],
+ [{peer, TPid}]),
+ ok = receive %% ensure the transport dies on DPA
#diameter_event{service = ?CLIENT, info = {down, Ref, _, _}} ->
ok
after 5000 ->
erlang:process_info(self(), messages)
end.
+%% sender/1
+
+sender(server) ->
+ ?SERVER;
+
+sender(_) ->
+ ?CLIENT.
+
+%% connect/1
+
connect(Config) ->
Pid = spawn(fun init/0), %% process for disconnect_cb to bang
Grp = group(Config),
@@ -138,16 +199,22 @@ connect(Config) ->
|| RCs <- ?RETURNS],
?util:write_priv(Config, config, [Pid | Refs]).
+%% remove_transport/1
+
%% Remove all the client transports only in the transport group.
remove_transport(Config) ->
transport == group(Config)
andalso (ok = diameter:remove_transport(?CLIENT, true)).
+%% stop_service/1
+
%% Stop the service only in the service group.
stop_service(Config) ->
service == group(Config)
andalso (ok = diameter:stop_service(?CLIENT)).
+%% check/1
+
%% Check for callbacks before diameter:stop/0, not the other way around
%% for the timing reason explained below.
check(Config) ->
@@ -157,9 +224,13 @@ check(Config) ->
Dict = receive {Pid, D} -> D end, %% get it
check(Refs, ?RETURNS, Grp, Dict). %% check for callbacks
+%% stop/1
+
stop(_Config) ->
ok = diameter:stop().
+%% ===========================================================================
+
%% Whether or not there are callbacks after diameter:stop() depends on
%% timing as long as the server runs on the same node: a server
%% transport could close the connection before the client has chance
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 02:07:00 +0000