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authorAnders Svensson <[email protected]>2013-01-21 17:34:36 +0100
committerAnders Svensson <[email protected]>2013-02-08 19:28:46 +0100
commitf0a36c79af84c044ba04af3602506624a5ee8799 (patch)
tree010c75f2ef263fc666354276e3ce020fc0e87fbb /lib/diameter/src
parentd8ef1f220f1a85ff883fa288cd641430667525d7 (diff)
downloadotp-f0a36c79af84c044ba04af3602506624a5ee8799.tar.gz
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Don't hardcode common dictionary
Instead, use whatever dictionary a transport has configured as supporting application id 0. This is to support the updated RFC 6733 dictionaries (which bring with them updated records) and also to be able to transparently support any changed semantics (eg. 5xxx in answer-message).
Diffstat (limited to 'lib/diameter/src')
-rw-r--r--lib/diameter/src/base/diameter_capx.erl145
-rw-r--r--lib/diameter/src/base/diameter_codec.erl57
-rw-r--r--lib/diameter/src/base/diameter_config.erl45
-rw-r--r--lib/diameter/src/base/diameter_internal.hrl4
-rw-r--r--lib/diameter/src/base/diameter_peer_fsm.erl110
-rw-r--r--lib/diameter/src/base/diameter_service.erl732
-rw-r--r--lib/diameter/src/base/diameter_watchdog.erl99
7 files changed, 662 insertions, 530 deletions
diff --git a/lib/diameter/src/base/diameter_capx.erl b/lib/diameter/src/base/diameter_capx.erl
index c6c3d2934d..9efe28b9e0 100644
--- a/lib/diameter/src/base/diameter_capx.erl
+++ b/lib/diameter/src/base/diameter_capx.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -47,14 +47,13 @@
-module(diameter_capx).
--export([build_CER/1,
- recv_CER/2,
- recv_CEA/2,
+-export([build_CER/2,
+ recv_CER/3,
+ recv_CEA/3,
make_caps/2]).
-include_lib("diameter/include/diameter.hrl").
-include("diameter_internal.hrl").
--include("diameter_gen_base_rfc3588.hrl").
-define(SUCCESS, 2001). %% DIAMETER_SUCCESS
-define(NOAPP, 5010). %% DIAMETER_NO_COMMON_APPLICATION
@@ -67,27 +66,31 @@
-type tried(T) :: {ok, T} | {error, {term(), list()}}.
--spec build_CER(#diameter_caps{})
- -> tried(#diameter_base_CER{}).
+-spec build_CER(#diameter_caps{}, module())
+ -> tried(CER)
+ when CER :: tuple().
-build_CER(Caps) ->
- try_it([fun bCER/1, Caps]).
+build_CER(Caps, Dict) ->
+ try_it([fun bCER/2, Caps, Dict]).
--spec recv_CER(#diameter_base_CER{}, #diameter_service{})
+-spec recv_CER(CER, #diameter_service{}, module())
-> tried({[diameter:'Unsigned32'()],
#diameter_caps{},
- #diameter_base_CEA{}}).
+ CEA})
+ when CER :: tuple(),
+ CEA :: tuple().
-recv_CER(CER, Svc) ->
- try_it([fun rCER/2, CER, Svc]).
+recv_CER(CER, Svc, Dict) ->
+ try_it([fun rCER/3, CER, Svc, Dict]).
--spec recv_CEA(#diameter_base_CEA{}, #diameter_service{})
+-spec recv_CEA(CEA, #diameter_service{}, module())
-> tried({[diameter:'Unsigned32'()],
[diameter:'Unsigned32'()],
- #diameter_caps{}}).
+ #diameter_caps{}})
+ when CEA :: tuple().
-recv_CEA(CEA, Svc) ->
- try_it([fun rCEA/2, CEA, Svc]).
+recv_CEA(CEA, Svc, Dict) ->
+ try_it([fun rCEA/3, CEA, Svc, Dict]).
make_caps(Caps, Opts) ->
try_it([fun mk_caps/2, Caps, Opts]).
@@ -161,16 +164,17 @@ ipaddr(A) ->
?THROW(T)
end.
-%% bCER/1
+%% bCER/2
%%
%% Build a CER record to send to a remote peer.
%% Use the fact that diameter_caps has the same field names as CER.
-bCER(#diameter_caps{} = Rec) ->
- #diameter_base_CER{}
- = list_to_tuple([diameter_base_CER | tl(tuple_to_list(Rec))]).
+bCER(#diameter_caps{} = Rec, Dict) ->
+ Values = lists:zip(Dict:'#info-'(diameter_base_CER, fields),
+ tl(tuple_to_list(Rec))),
+ Dict:'#new-'(diameter_base_CER, Values).
-%% rCER/2
+%% rCER/3
%%
%% Build a CEA record to send to a remote peer in response to an
%% incoming CER. RFC 3588 gives no guidance on what should be sent
@@ -214,12 +218,9 @@ bCER(#diameter_caps{} = Rec) ->
%% TLS 1
%% This node supports TLS security, as defined by [TLS].
-rCER(CER, #diameter_service{capabilities = LCaps} = Svc) ->
- #diameter_base_CEA{}
- = CEA
- = cea_from_cer(bCER(LCaps)),
-
- RCaps = capx_to_caps(CER),
+rCER(CER, #diameter_service{capabilities = LCaps} = Svc, Dict) ->
+ CEA = cea_from_cer(bCER(LCaps, Dict), Dict),
+ RCaps = capx_to_caps(CER, Dict),
SApps = common_applications(LCaps, RCaps, Svc),
{SApps,
@@ -227,17 +228,18 @@ rCER(CER, #diameter_service{capabilities = LCaps} = Svc) ->
build_CEA(SApps,
LCaps,
RCaps,
- CEA#diameter_base_CEA{'Result-Code' = ?SUCCESS})}.
+ Dict,
+ Dict:'#set-'({'Result-Code', ?SUCCESS}, CEA))}.
-build_CEA([], _, _, CEA) ->
- CEA#diameter_base_CEA{'Result-Code' = ?NOAPP};
+build_CEA([], _, _, Dict, CEA) ->
+ Dict:'#set-'({'Result-Code', ?NOAPP}, CEA);
-build_CEA(_, LCaps, RCaps, CEA) ->
+build_CEA(_, LCaps, RCaps, Dict, CEA) ->
case common_security(LCaps, RCaps) of
[] ->
- CEA#diameter_base_CEA{'Result-Code' = ?NOSECURITY};
+ Dict:'#set-'({'Result-Code', ?NOSECURITY}, CEA);
[_] = IS ->
- CEA#diameter_base_CEA{'Inband-Security-Id' = IS}
+ Dict:'#set-'({'Inband-Security-Id', IS}, CEA)
end.
%% common_security/2
@@ -275,46 +277,49 @@ cs(LS, RS) ->
%% practice something there may be a need for more synchronization
%% than notification by way of an event subscription offers.
-%% cea_from_cer/1
+%% cea_from_cer/2
%% CER is a subset of CEA, the latter adding Result-Code and a few
%% more AVP's.
-cea_from_cer(#diameter_base_CER{} = CER) ->
- lists:foldl(fun(F,A) -> to_cea(CER, F, A) end,
- #diameter_base_CEA{},
- record_info(fields, diameter_base_CER)).
-
-to_cea(CER, Field, CEA) ->
- try ?BASE:'#get-'(Field, CER) of
- V -> ?BASE:'#set-'({Field, V}, CEA)
+cea_from_cer(CER, Dict) ->
+ lists:foldl(fun(F,A) -> to_cea(CER, F, A, Dict) end,
+ Dict:'#new-'(diameter_base_CEA),
+ Dict:'#info-'(diameter_base_CER, fields)).
+
+to_cea(CER, Field, CEA, Dict) ->
+ try Dict:'#get-'(Field, CER) of
+ V -> Dict:'#set-'({Field, V}, CEA)
catch
error: _ -> CEA
end.
-%% rCEA/2
+%% rCEA/3
-rCEA(CEA, #diameter_service{capabilities = LCaps} = Svc) ->
- RCaps = capx_to_caps(CEA),
+rCEA(CEA, #diameter_service{capabilities = LCaps} = Svc, Dict) ->
+ RCaps = capx_to_caps(CEA, Dict),
SApps = common_applications(LCaps, RCaps, Svc),
IS = common_security(LCaps, RCaps),
{SApps, IS, RCaps}.
-%% capx_to_caps/1
-
-capx_to_caps(#diameter_base_CEA{'Origin-Host' = OH,
- 'Origin-Realm' = OR,
- 'Host-IP-Address' = IP,
- 'Vendor-Id' = VId,
- 'Product-Name' = PN,
- 'Origin-State-Id' = OSI,
- 'Supported-Vendor-Id' = SV,
- 'Auth-Application-Id' = Auth,
- 'Inband-Security-Id' = IS,
- 'Acct-Application-Id' = Acct,
- 'Vendor-Specific-Application-Id' = VSA,
- 'Firmware-Revision' = FR,
- 'AVP' = X}) ->
+%% capx_to_caps/2
+
+capx_to_caps(CEX, Dict) ->
+ [OH, OR, IP, VId, PN, OSI, SV, Auth, IS, Acct, VSA, FR, X]
+ = Dict:'#get-'(['Origin-Host',
+ 'Origin-Realm',
+ 'Host-IP-Address',
+ 'Vendor-Id',
+ 'Product-Name',
+ 'Origin-State-Id',
+ 'Supported-Vendor-Id',
+ 'Auth-Application-Id',
+ 'Inband-Security-Id',
+ 'Acct-Application-Id',
+ 'Vendor-Specific-Application-Id',
+ 'Firmware-Revision',
+ 'AVP'],
+ CEX),
#diameter_caps{origin_host = OH,
origin_realm = OR,
vendor_id = VId,
@@ -327,10 +332,7 @@ capx_to_caps(#diameter_base_CEA{'Origin-Host' = OH,
acct_application_id = Acct,
vendor_specific_application_id = VSA,
firmware_revision = FR,
- avp = X};
-
-capx_to_caps(#diameter_base_CER{} = CER) ->
- capx_to_caps(cea_from_cer(CER)).
+ avp = X}.
%% ---------------------------------------------------------------------------
%% ---------------------------------------------------------------------------
@@ -365,13 +367,12 @@ app_union(#diameter_caps{auth_application_id = U,
vendor_specific_application_id = V}) ->
set_list(U ++ C ++ lists:flatmap(fun vsa_apps/1, V)).
-vsa_apps(#'diameter_base_Vendor-Specific-Application-Id'
- {'Auth-Application-Id' = U,
- 'Acct-Application-Id' = C}) ->
- U ++ C;
-vsa_apps(L) ->
- Rec = ?BASE:'#new-'('diameter_base_Vendor-Specific-Application-Id', L),
- vsa_apps(Rec).
+vsa_apps([_ | [_,_] = Ids]) ->
+ lists:append(Ids);
+vsa_apps(Rec)
+ when is_tuple(Rec) ->
+ [_|T] = tuple_to_list(Rec),
+ vsa_apps(T).
%% It's a configuration error for a locally advertised application not
%% to be represented in Apps. Don't just match on lists:keyfind/3 in
diff --git a/lib/diameter/src/base/diameter_codec.erl b/lib/diameter/src/base/diameter_codec.erl
index 0b0bfe3f0a..e446a0209c 100644
--- a/lib/diameter/src/base/diameter_codec.erl
+++ b/lib/diameter/src/base/diameter_codec.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -26,7 +26,7 @@
decode_header/1,
sequence_numbers/1,
hop_by_hop_id/2,
- msg_name/1,
+ msg_name/2,
msg_id/1]).
%% Towards generated encoders (from diameter_gen.hrl).
@@ -99,13 +99,13 @@ e(_, #diameter_packet{msg = [#diameter_header{} = Hdr | As]} = Pkt) ->
Eid:32,
Avps/binary>>};
-e(Mod0, #diameter_packet{header = Hdr, msg = Msg} = Pkt) ->
+e(Mod, #diameter_packet{header = Hdr, msg = Msg} = Pkt) ->
#diameter_header{version = Vsn,
hop_by_hop_id = Hid,
end_to_end_id = Eid}
= Hdr,
- {Mod, MsgName} = rec2msg(Mod0, Msg),
+ MsgName = rec2msg(Mod, Msg),
{Code, Flags0, Aid} = msg_header(Mod, MsgName, Hdr),
Flags = make_flags(Flags0, Hdr),
@@ -192,11 +192,11 @@ encode_avps(Avps) ->
%% msg_header/3
msg_header(Mod, 'answer-message' = MsgName, Header) ->
- ?BASE = Mod,
+ 0 = Mod:id(), %% assert
#diameter_header{application_id = Aid,
cmd_code = Code}
= Header,
- {-1, Flags, ?DIAMETER_APP_ID_COMMON} = ?BASE:msg_header(MsgName),
+ {-1, Flags, ?DIAMETER_APP_ID_COMMON} = Mod:msg_header(MsgName),
{Code, Flags, Aid};
msg_header(Mod, MsgName, _) ->
@@ -204,22 +204,12 @@ msg_header(Mod, MsgName, _) ->
%% rec2msg/2
-rec2msg(_, ['answer-message' = M | _]) ->
- {?BASE, M};
-
-rec2msg(Mod, [MsgName|_])
- when is_atom(MsgName) ->
- {Mod, MsgName};
+rec2msg(_, [Name|_])
+ when is_atom(Name) ->
+ Name;
rec2msg(Mod, Rec) ->
- R = element(1, Rec),
- A = 'answer-message',
- case ?BASE:msg2rec(A) of
- R ->
- {?BASE, A};
- _ ->
- {Mod, Mod:rec2msg(R)}
- end.
+ Mod:rec2msg(element(1, Rec)).
%%% ---------------------------------------------------------------------------
%%% # decode/2
@@ -243,20 +233,19 @@ decode(?APP_ID_RELAY, _, #diameter_packet{} = Pkt) ->
end;
%% Otherwise decode using the dictionary.
-decode(_, Mod, #diameter_packet{header = Hdr} = Pkt)
- when is_atom(Mod) ->
+decode(_, Mod, #diameter_packet{header = Hdr} = Pkt) ->
#diameter_header{cmd_code = CmdCode,
is_request = IsRequest,
is_error = IsError}
= Hdr,
- {M, MsgName} = if IsError andalso not IsRequest ->
- {?BASE, 'answer-message'};
- true ->
- {Mod, Mod:msg_name(CmdCode, IsRequest)}
- end,
+ MsgName = if IsError andalso not IsRequest ->
+ 'answer-message';
+ true ->
+ Mod:msg_name(CmdCode, IsRequest)
+ end,
- decode_avps(MsgName, M, Pkt, collect_avps(Pkt));
+ decode_avps(MsgName, Mod, Pkt, collect_avps(Pkt));
decode(Id, Mod, Bin)
when is_bitstring(Bin) ->
@@ -360,15 +349,15 @@ hop_by_hop_id(Id, <<H:12/binary, _:32, T/binary>>) ->
<<H/binary, Id:32, T/binary>>.
%%% ---------------------------------------------------------------------------
-%%% # msg_name/1
+%%% # msg_name/2
%%% ---------------------------------------------------------------------------
-msg_name(#diameter_header{application_id = ?APP_ID_COMMON,
- cmd_code = C,
- is_request = R}) ->
- ?BASE:msg_name(C,R);
+msg_name(Dict0, #diameter_header{application_id = ?APP_ID_COMMON,
+ cmd_code = C,
+ is_request = R}) ->
+ Dict0:msg_name(C,R);
-msg_name(Hdr) ->
+msg_name(_, Hdr) ->
msg_id(Hdr).
%% Note that messages in different applications could have the same
diff --git a/lib/diameter/src/base/diameter_config.erl b/lib/diameter/src/base/diameter_config.erl
index 63d28f25a2..35aa9a57b8 100644
--- a/lib/diameter/src/base/diameter_config.erl
+++ b/lib/diameter/src/base/diameter_config.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -113,15 +113,22 @@
-define(VALUES(Rec), tl(tuple_to_list(Rec))).
+%% The RFC 3588 common dictionary is used to validate capabilities
+%% configuration. That a given transport may use the RFC 6733
+%% dictionary is of no consequence.
+-define(BASE, diameter_gen_base_rfc3588).
+
%%% The return values below assume the server diameter_config is started.
%%% The functions will exit if it isn't.
%% --------------------------------------------------------------------------
-%% # start_service(SvcName, Opts)
-%%
-%% Output: ok | {error, Reason}
+%% # start_service/2
%% --------------------------------------------------------------------------
+-spec start_service(diameter:service_name(), [diameter:service_opt()])
+ -> ok
+ | {error, term()}.
+
start_service(SvcName, Opts)
when is_list(Opts) ->
start_rc(sync(SvcName, {start_service, SvcName, Opts})).
@@ -134,22 +141,23 @@ start_rc(timeout) ->
{error, application_not_started}.
%% --------------------------------------------------------------------------
-%% # stop_service(SvcName)
-%%
-%% Output: ok
+%% # stop_service/1
%% --------------------------------------------------------------------------
+-spec stop_service(diameter:service_name())
+ -> ok.
+
stop_service(SvcName) ->
sync(SvcName, {stop_service, SvcName}).
%% --------------------------------------------------------------------------
-%% # add_transport(SvcName, {Type, Opts})
-%%
-%% Input: Type = connect | listen
-%%
-%% Output: {ok, Ref} | {error, Reason}
+%% # add_transport/2
%% --------------------------------------------------------------------------
+-spec add_transport(diameter:service_name(), {connect|listen, [diameter:transport_opt()]})
+ -> {ok, diameter:transport_ref()}
+ | {error, term()}.
+
add_transport(SvcName, {T, Opts})
when is_list(Opts), (T == connect orelse T == listen) ->
sync(SvcName, {add, SvcName, T, Opts}).
@@ -171,6 +179,10 @@ add_transport(SvcName, {T, Opts})
%% Output: ok | {error, Reason}
%% --------------------------------------------------------------------------
+-spec remove_transport(diameter:service_name(), diameter:transport_pred())
+ -> ok
+ | {error, term()}.
+
remove_transport(SvcName, Pred) ->
try
sync(SvcName, {remove, SvcName, pred(Pred)})
@@ -473,6 +485,10 @@ stop(SvcName) ->
%% add/3
+%% Can't check for a single common dictionary since a transport may
+%% restrict applications so that that there's one while the service
+%% has many.
+
add(SvcName, Type, Opts) ->
%% Ensure usable capabilities. diameter_service:merge_service/2
%% depends on this.
@@ -545,7 +561,7 @@ make_config(SvcName, Opts) ->
[] == Apps andalso ?THROW(no_apps),
%% Use the fact that diameter_caps has the same field names as CER.
- Fields = diameter_gen_base_rfc3588:'#info-'(diameter_base_CER) -- ['AVP'],
+ Fields = ?BASE:'#info-'(diameter_base_CER) -- ['AVP'],
COpts = [T || {K,_} = T <- Opts, lists:member(K, Fields)],
Caps = make_caps(#diameter_caps{}, COpts),
@@ -629,7 +645,8 @@ make_caps(Caps, Opts) ->
%% Validate types by encoding a CER.
encode_CER(Opts) ->
- {ok, CER} = diameter_capx:build_CER(make_caps(?EXAMPLE_CAPS, Opts)),
+ {ok, CER} = diameter_capx:build_CER(make_caps(?EXAMPLE_CAPS, Opts),
+ ?BASE),
Hdr = #diameter_header{version = ?DIAMETER_VERSION,
end_to_end_id = 0,
diff --git a/lib/diameter/src/base/diameter_internal.hrl b/lib/diameter/src/base/diameter_internal.hrl
index 63b35550a8..4b672aa071 100644
--- a/lib/diameter/src/base/diameter_internal.hrl
+++ b/lib/diameter/src/base/diameter_internal.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -58,8 +58,6 @@
-define(APP_ID_COMMON, 0).
-define(APP_ID_RELAY, 16#FFFFFFFF).
--define(BASE, diameter_gen_base_rfc3588).
-
%%% ---------------------------------------------------------
%%% RFC 3588, ch 2.6 Peer table
diff --git a/lib/diameter/src/base/diameter_peer_fsm.erl b/lib/diameter/src/base/diameter_peer_fsm.erl
index de341741db..bf8f939d7f 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).
@@ -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) ->
@@ -1029,6 +1041,7 @@ 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'),
diff --git a/lib/diameter/src/base/diameter_service.erl b/lib/diameter/src/base/diameter_service.erl
index 3cab914fdb..6e7adb1be2 100644
--- a/lib/diameter/src/base/diameter_service.erl
+++ b/lib/diameter/src/base/diameter_service.erl
@@ -32,7 +32,7 @@
call/4]).
%% towards diameter_watchdog
--export([receive_message/3]).
+-export([receive_message/4]).
%% service supervisor
-export([start_link/1]).
@@ -50,7 +50,7 @@
state/1,
uptime/1]).
-%%% gen_server callbacks
+%% gen_server callbacks
-export([init/1,
handle_call/3,
handle_cast/2,
@@ -82,6 +82,7 @@
-define(RESTART_TC, 1000). %% if restart was this recent
-define(RELAY, ?DIAMETER_DICT_RELAY).
+-define(BASE, ?DIAMETER_DICT_COMMON).
%% Used to be able to swap this with anything else dict-like but now
%% rely on the fact that a service's #state{} record does not change
@@ -112,7 +113,7 @@
%% State of service gen_server.
-record(state,
{id = now(),
- service_name, %% as passed to start_service/2, key in ?STATE_TABLE
+ service_name :: diameter:service_name(), %% key in ?STATE_TABLE
service :: #diameter_service{},
watchdogT = ets_new(watchdogs) %% #watchdog{} at start
:: ets:tid(),
@@ -173,9 +174,16 @@
timeout = ?DEFAULT_TIMEOUT :: 0..16#FFFFFFFF,
detach = false :: boolean()}).
-%%% ---------------------------------------------------------------------------
-%%% # start(SvcName)
-%%% ---------------------------------------------------------------------------
+%% Term passed back to receive_message/4 with every incoming message.
+-record(recvdata,
+ {peerT :: ets:tid(),
+ service_name :: diameter:service_name(),
+ apps :: [#diameter_app{}],
+ sequence :: diameter:sequence()}).
+
+%% ---------------------------------------------------------------------------
+%% # start/1
+%% ---------------------------------------------------------------------------
start(SvcName) ->
diameter_service_sup:start_child(SvcName).
@@ -186,9 +194,9 @@ start_link(SvcName) ->
%% Put the arbitrary term SvcName in a list in case we ever want to
%% send more than this and need to distinguish old from new.
-%%% ---------------------------------------------------------------------------
-%%% # stop(SvcName)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # stop/1
+%% ---------------------------------------------------------------------------
stop(SvcName) ->
case whois(SvcName) of
@@ -204,25 +212,25 @@ stop(ok, Pid) ->
stop(No, _) ->
No.
-%%% ---------------------------------------------------------------------------
-%%% # start_transport(SvcName, {Ref, Type, Opts})
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # start_transport/3
+%% ---------------------------------------------------------------------------
-start_transport(SvcName, {_,_,_} = T) ->
+start_transport(SvcName, {_Ref, _Type, _Opts} = T) ->
call_service_by_name(SvcName, {start, T}).
-%%% ---------------------------------------------------------------------------
-%%% # stop_transport(SvcName, Refs)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # stop_transport/2
+%% ---------------------------------------------------------------------------
stop_transport(_, []) ->
ok;
stop_transport(SvcName, [_|_] = Refs) ->
call_service_by_name(SvcName, {stop, Refs}).
-%%% ---------------------------------------------------------------------------
-%%% # info(SvcName, Item)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # info/2
+%% ---------------------------------------------------------------------------
info(SvcName, Item) ->
case find_state(SvcName) of
@@ -232,31 +240,37 @@ info(SvcName, Item) ->
undefined
end.
-%%% ---------------------------------------------------------------------------
-%%% # receive_message(TPid, Pkt, MessageData)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # receive_message/4
+%% ---------------------------------------------------------------------------
%% Handle an incoming Diameter message in the watchdog process. This
%% used to come through the service process but this avoids that
%% becoming a bottleneck.
-receive_message(TPid, Pkt, T)
+receive_message(TPid, Pkt, Dict0, RecvData)
when is_pid(TPid) ->
#diameter_packet{header = #diameter_header{is_request = R}} = Pkt,
- recv(R, (not R) andalso lookup_request(Pkt, TPid), TPid, Pkt, T).
+ recv(R,
+ (not R) andalso lookup_request(Pkt, TPid),
+ TPid,
+ Pkt,
+ Dict0,
+ RecvData).
%% Incoming request ...
-recv(true, false, TPid, Pkt, T) ->
+recv(true, false, TPid, Pkt, Dict0, RecvData) ->
try
- spawn(fun() -> recv_request(TPid, Pkt, T) end)
+ spawn(fun() -> recv_request(TPid, Pkt, Dict0, RecvData) end)
catch
error: system_limit = E -> %% discard
?LOG({error, E}, now())
end;
%% ... answer to known request ...
-recv(false, #request{from = {_, Ref}, handler = Pid} = Req, _, Pkt, _) ->
- Pid ! {answer, Ref, Req, Pkt};
+recv(false, #request{from = From, handler = Pid} = Req, _, Pkt, Dict0, _) ->
+ {_, Ref} = From,
+ Pid ! {answer, Ref, Req, Dict0, Pkt};
%% Note that failover could have happened prior to this message being
%% received and triggering failback. That is, both a failover message
%% and answer may be on their way to the handler process. In the worst
@@ -267,12 +281,12 @@ recv(false, #request{from = {_, Ref}, handler = Pid} = Req, _, Pkt, _) ->
%% any others are discarded.
%% ... or not.
-recv(false, false, _, _, _) ->
+recv(false, false, _, _, _, _) ->
ok.
-%%% ---------------------------------------------------------------------------
-%%% # call(SvcName, App, Msg, Options)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # call/4
+%% ---------------------------------------------------------------------------
call(SvcName, App, Msg, Options)
when is_list(Options) ->
@@ -374,10 +388,10 @@ mo(detach, Rec) ->
mo(T, _) ->
?ERROR({invalid_option, T}).
-%%% ---------------------------------------------------------------------------
-%%% # subscribe(SvcName)
-%%% # unsubscribe(SvcName)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # subscribe/1
+%% # unsubscribe/1
+%% ---------------------------------------------------------------------------
subscribe(SvcName) ->
diameter_reg:add({?MODULE, subscriber, SvcName}).
@@ -394,9 +408,9 @@ subscriptions() ->
pmap(Props) ->
lists:map(fun({{?MODULE, _, Name}, Pid}) -> {Name, Pid} end, Props).
-%%% ---------------------------------------------------------------------------
-%%% # services(Pattern)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # services/1
+%% ---------------------------------------------------------------------------
services(Pat) ->
pmap(diameter_reg:match({?MODULE, service, Pat})).
@@ -426,9 +440,9 @@ uptime(Svc) ->
call_module(Service, AppMod, Request) ->
call_service(Service, {call_module, AppMod, Request}).
-%%% ---------------------------------------------------------------------------
-%%% # init([SvcName])
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # init/1
+%% ---------------------------------------------------------------------------
init([SvcName]) ->
process_flag(trap_exit, true), %% ensure terminate(shutdown, _)
@@ -439,9 +453,9 @@ i(SvcName, true) ->
i(_, false) ->
{stop, {shutdown, already_started}}.
-%%% ---------------------------------------------------------------------------
-%%% # handle_call(Req, From, State)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # handle_call/3
+%% ---------------------------------------------------------------------------
handle_call(state, _, S) ->
{reply, S, S};
@@ -477,17 +491,17 @@ handle_call(Req, From, S) ->
unexpected(handle_call, [Req, From], S),
{reply, nok, S}.
-%%% ---------------------------------------------------------------------------
-%%% # handle_cast(Req, State)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # handle_cast/2
+%% ---------------------------------------------------------------------------
handle_cast(Req, S) ->
unexpected(handle_cast, [Req], S),
{noreply, S}.
-%%% ---------------------------------------------------------------------------
-%%% # handle_info(Req, State)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # handle_info/2
+%% ---------------------------------------------------------------------------
handle_info(T, #state{} = S) ->
case transition(T,S) of
@@ -581,9 +595,9 @@ transition(Req, S) ->
unexpected(handle_info, [Req], S),
ok.
-%%% ---------------------------------------------------------------------------
-%%% # terminate(Reason, State)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # terminate/2
+%% ---------------------------------------------------------------------------
terminate(Reason, #state{service_name = Name} = S) ->
send_event(Name, stop),
@@ -591,9 +605,9 @@ terminate(Reason, #state{service_name = Name} = S) ->
shutdown == Reason %% application shutdown
andalso shutdown(application, S).
-%%% ---------------------------------------------------------------------------
-%%% # code_change(FromVsn, State, Extra)
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # code_change/3
+%% ---------------------------------------------------------------------------
code_change(FromVsn,
#state{service_name = SvcName,
@@ -668,9 +682,9 @@ mod_state(Alias) ->
mod_state(Alias, ModS) ->
put({?MODULE, mod_state, Alias}, ModS).
-%%% ---------------------------------------------------------------------------
-%%% # shutdown/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # shutdown/2
+%% ---------------------------------------------------------------------------
%% remove_transport
shutdown(Refs, #state{watchdogT = WatchdogT})
@@ -697,9 +711,9 @@ st(#watchdog{pid = Pid}, Reason, Acc) ->
Pid ! {shutdown, self(), Reason},
[Pid | Acc].
-%%% ---------------------------------------------------------------------------
-%%% # call_service/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # call_service/2
+%% ---------------------------------------------------------------------------
call_service(Pid, Req)
when is_pid(Pid) ->
@@ -722,9 +736,9 @@ cs(Pid, Req)
cs(undefined, _) ->
{error, no_service}.
-%%% ---------------------------------------------------------------------------
-%%% # i/1
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # i/1
+%% ---------------------------------------------------------------------------
%% Intialize the state of a service gen_server.
@@ -794,9 +808,9 @@ get_value(Key, Vs) ->
{_, V} = lists:keyfind(Key, 1, Vs),
V.
-%%% ---------------------------------------------------------------------------
-%%% # start/3
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # start/3
+%% ---------------------------------------------------------------------------
%% If the initial start/3 at service/transport start succeeds then
%% subsequent calls to start/4 on the same service will also succeed
@@ -830,14 +844,21 @@ start(Ref, Type, Opts, #state{watchdogT = WatchdogT,
peerT = PeerT,
options = SvcOpts,
service_name = SvcName,
- service = Svc})
+ service = Svc0})
when Type == connect;
Type == accept ->
- Pid = s(Type, Ref, {PeerT,
+ #diameter_service{applications = Apps}
+ = Svc
+ = merge_service(Opts, Svc0),
+ Pid = s(Type, Ref, {#recvdata{service_name = SvcName,
+ peerT = PeerT,
+ apps = Apps,
+ sequence
+ = {_,_}
+ = proplists:get_value(sequence, SvcOpts)},
Opts,
- SvcName,
SvcOpts,
- merge_service(Opts, Svc)}),
+ Svc}),
insert(WatchdogT, #watchdog{pid = Pid,
type = Type,
ref = Ref,
@@ -884,9 +905,9 @@ ms({capabilities, Opts}, #diameter_service{capabilities = Caps0} = Svc)
ms(_, Svc) ->
Svc.
-%%% ---------------------------------------------------------------------------
-%%% # accepted/3
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # accepted/3
+%% ---------------------------------------------------------------------------
accepted(Pid, _TPid, #state{watchdogT = WatchdogT} = S) ->
#watchdog{ref = Ref, type = accept = T, peer = false, options = Opts}
@@ -899,11 +920,11 @@ fetch(Tid, Key) ->
[T] = ets:lookup(Tid, Key),
T.
-%%% ---------------------------------------------------------------------------
-%%% # watchdog/6
-%%%
-%%% React to a watchdog state transition.
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # watchdog/6
+%%
+%% React to a watchdog state transition.
+%% ---------------------------------------------------------------------------
%% Watchdog has a new open connection.
watchdog(TPid, [T], _, ?WD_OKAY, Wd, State) ->
@@ -933,43 +954,43 @@ watchdog(TPid, [], _, ?WD_DOWN = To, Wd, #state{peerT = PeerT} = S) ->
watchdog(_, [], _, _, _, _) ->
ok.
-%%% ---------------------------------------------------------------------------
-%%% # connection_up/3
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # connection_up/3
+%% ---------------------------------------------------------------------------
%% Watchdog process has reached state OKAY.
-connection_up({TPid, {Caps, SApps, Pkt}},
+connection_up({TPid, {Caps, SupportedApps, Pkt}},
#watchdog{pid = Pid}
= Wd,
#state{peerT = PeerT}
= S) ->
Pr = #peer{pid = TPid,
- apps = SApps,
+ apps = SupportedApps,
caps = Caps,
watchdog = Pid},
insert(PeerT, Pr),
connection_up([Pkt], Wd#watchdog{peer = TPid}, Pr, S).
-%%% ---------------------------------------------------------------------------
-%%% # reopen/3
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # reopen/3
+%% ---------------------------------------------------------------------------
-reopen({TPid, {Caps, SApps, _Pkt}},
+reopen({TPid, {Caps, SupportedApps, _Pkt}},
#watchdog{pid = Pid}
= Wd,
#state{watchdogT = WatchdogT,
peerT = PeerT}) ->
insert(PeerT, #peer{pid = TPid,
- apps = SApps,
+ apps = SupportedApps,
caps = Caps,
watchdog = Pid}),
insert(WatchdogT, Wd#watchdog{state = ?WD_REOPEN,
peer = TPid}).
-%%% ---------------------------------------------------------------------------
-%%% # connection_up/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # connection_up/2
+%% ---------------------------------------------------------------------------
%% Watchdog has recovered as suspect connection. Note that there has
%% been no new capabilties exchange in this case.
@@ -987,8 +1008,7 @@ connection_up(Extra,
#state{watchdogT = WatchdogT,
local_peers = LDict,
service_name = SvcName,
- service
- = #diameter_service{applications = Apps}}
+ service = #diameter_service{applications = Apps}}
= S) ->
insert(WatchdogT, Wd#watchdog{state = ?WD_OKAY}),
request_peer_up(TPid),
@@ -1028,9 +1048,9 @@ peer_cb(MFA, Alias) ->
false
end.
-%%% ---------------------------------------------------------------------------
-%%% # connection_down/3
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # connection_down/3
+%% ---------------------------------------------------------------------------
connection_down(#watchdog{state = ?WD_OKAY,
peer = TPid}
@@ -1077,9 +1097,9 @@ down_conn(Id, Alias, TC, {SvcName, Apps}) ->
peer_cb({ModX, peer_down, [SvcName, TC]}, Alias).
-%%% ---------------------------------------------------------------------------
-%%% # watchdog_down/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # watchdog_down/2
+%% ---------------------------------------------------------------------------
%% Watchdog process has died.
@@ -1172,9 +1192,9 @@ tc(true, {Ref, Type, Opts}, #state{service_name = SvcName}
tc(false = No, _, _) -> %% removed
No.
-%%% ---------------------------------------------------------------------------
-%%% # close/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # close/2
+%% ---------------------------------------------------------------------------
%% The watchdog doesn't start a new fsm in the accept case, it
%% simply stays alive until someone tells it to die in order for
@@ -1207,9 +1227,9 @@ c(Pid, false, _Opts) ->
%% which a new connection attempt is expected of a connecting peer.
%% The value should be greater than the peer's Tc + jitter.
-%%% ---------------------------------------------------------------------------
-%%% # reconnect/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # reconnect/2
+%% ---------------------------------------------------------------------------
reconnect(Pid, #state{service_name = SvcName,
watchdogT = WatchdogT}) ->
@@ -1219,9 +1239,9 @@ reconnect(Pid, #state{service_name = SvcName,
= fetch(WatchdogT, Pid),
send_event(SvcName, {reconnect, Ref, Opts}).
-%%% ---------------------------------------------------------------------------
-%%% # call_module/4
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # call_module/4
+%% ---------------------------------------------------------------------------
%% Backwards compatibility and never documented/advertised. May be
%% removed.
@@ -1268,9 +1288,9 @@ cm([], _, _, _) ->
cm([_,_|_], _, _, _) ->
multiple.
-%%% ---------------------------------------------------------------------------
-%%% # send_request/6
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # send_request/6
+%% ---------------------------------------------------------------------------
%% Send an outgoing request in its dedicated process.
%%
@@ -1402,20 +1422,20 @@ fold_record(Rec, R) ->
%% send_req/6
-send_req(Pkt, {TPid, Caps, App}, Opts, Caller, SvcName, Fs) ->
+send_req(Pkt0, {TPid, Caps, App}, Opts, Caller, SvcName, Fs) ->
#diameter_app{alias = Alias,
dictionary = Dict,
module = ModX,
options = [{answer_errors, AE} | _]}
= App,
- EPkt = encode(Dict, Pkt, Fs),
+ Pkt = encode(Dict, Pkt0, Fs),
#options{filter = Filter,
timeout = Timeout}
= Opts,
- Req = #request{packet = Pkt,
+ Req = #request{packet = Pkt0,
from = Caller,
handler = self(),
transport = TPid,
@@ -1426,11 +1446,11 @@ send_req(Pkt, {TPid, Caps, App}, Opts, Caller, SvcName, Fs) ->
module = ModX},
try
- TRef = send_request(TPid, EPkt, Req, Timeout),
+ TRef = send_request(TPid, Pkt, Req, Timeout),
ack(Caller),
handle_answer(SvcName, AE, recv_answer(Timeout, SvcName, {TRef, Req}))
after
- erase_request(EPkt)
+ erase_request(Pkt)
end.
%% Tell caller a send has been attempted.
@@ -1450,13 +1470,13 @@ recv_answer(Timeout,
%% is, from the last peer to which we've transmitted.
receive
- {answer = A, Ref, Rq, Pkt} -> %% Answer from peer
- {A, Rq, Pkt};
- {timeout = Reason, TRef, _} -> %% No timely reply
+ {answer = A, Ref, Rq, Dict0, Pkt} -> %% Answer from peer
+ {A, Rq, Dict0, Pkt};
+ {timeout = Reason, TRef, _} -> %% No timely reply
{error, Req, Reason};
- {failover = Reason, TRef, false} -> %% No alternate peer
+ {failover = Reason, TRef, false} -> %% No alternate peer
{error, Req, Reason};
- {failover, TRef, Transport} -> %% Resend to alternate peer
+ {failover, TRef, Transport} -> %% Resend to alternate peer
try_retransmit(Timeout, SvcName, Req, Transport);
{failover, TRef} -> %% May have missed failover notification
Seqs = diameter_codec:sequence_numbers(RPkt),
@@ -1499,49 +1519,19 @@ encode(Dict, Pkt, Fs) ->
%% encode/2
-%% Note that prepare_request can return a diameter_packet containing
+%% Note that prepare_request can return a diameter_packet containing a
%% header or transport_data. Even allow the returned record to contain
-%% an encoded binary. This isn't the usual case but could some in
-%% handy, for test at least. (For example, to send garbage.)
+%% an encoded binary. This isn't the usual case and doesn't properly
+%% support retransmission but is useful for test.
-%% The normal case: encode the returned message.
-encode(Dict, #diameter_packet{msg = Msg, bin = undefined} = Pkt) ->
- D = pick_dictionary([Dict, ?BASE], Msg),
- diameter_codec:encode(D, Pkt);
+%% A message to be encoded.
+encode(Dict, #diameter_packet{bin = undefined} = Pkt) ->
+ diameter_codec:encode(Dict, Pkt);
-%% Callback has returned an encoded binary: just send.
+%% An encoded binary: just send.
encode(_, #diameter_packet{} = Pkt) ->
Pkt.
-%% pick_dictionary/2
-
-%% Pick the first dictionary that declares the application id in the
-%% specified header.
-pick_dictionary(Ds, [#diameter_header{application_id = Id} | _]) ->
- pd(Ds, fun(D) -> Id = D:id() end);
-
-%% Pick the first dictionary that knows the specified message name.
-pick_dictionary(Ds, [MsgName|_]) ->
- pd(Ds, fun(D) -> D:msg2rec(MsgName) end);
-
-%% Pick the first dictionary that knows the name of the specified
-%% message record.
-pick_dictionary(Ds, Rec) ->
- Name = element(1, Rec),
- pd(Ds, fun(D) -> D:rec2msg(Name) end).
-
-pd([D|Ds], F) ->
- try
- F(D),
- D
- catch
- error:_ ->
- pd(Ds, F)
- end;
-
-pd([], _) ->
- ?ERROR(no_dictionary).
-
%% send_request/4
send_request(TPid, #diameter_packet{bin = Bin} = Pkt, Req, Timeout)
@@ -1613,15 +1603,15 @@ resend_req(T, {_, _, App}, _, _, _) ->
%% retransmit/6
-retransmit(Pkt, {TPid, Caps, _}, #request{dictionary = D} = Req0, Tmo, Fs) ->
- EPkt = encode(D, Pkt, Fs),
+retransmit(Pkt0, {TPid, Caps, _}, #request{dictionary = D} = Req0, Tmo, Fs) ->
+ Pkt = encode(D, Pkt0, Fs),
Req = Req0#request{transport = TPid,
- packet = Pkt,
+ packet = Pkt0,
caps = Caps},
?LOG(retransmission, Req),
- TRef = send_request(TPid, EPkt, Req, Tmo),
+ TRef = send_request(TPid, Pkt, Req, Tmo),
{TRef, Req}.
%% store_request/4
@@ -1692,14 +1682,14 @@ request_peer_down(TPid, S) ->
%% given handler as there are peers its sent to. All but one of these
%% will be ignored.
-%%% ---------------------------------------------------------------------------
-%%% recv_request/3
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% recv_request/4
+%% ---------------------------------------------------------------------------
-recv_request(TPid, Pkt, {PeerT, SvcName, Apps, Mask}) ->
+recv_request(TPid, Pkt, Dict0, #recvdata{peerT = PeerT} = RecvData) ->
try ets:lookup(PeerT, TPid) of
- [C] ->
- recv_request(C, TPid, Pkt, SvcName, Apps, Mask);
+ [Pr] ->
+ recv_request(Pr, TPid, Pkt, Dict0, RecvData);
[] -> %% transport has gone down
ok
catch
@@ -1712,23 +1702,17 @@ recv_request(TPid, Pkt, {PeerT, SvcName, Apps, Mask}) ->
recv_request(#peer{apps = SApps, caps = Caps},
TPid,
Pkt,
- SvcName,
- Apps,
- Mask) ->
- #diameter_caps{origin_host = {OH,_},
- origin_realm = {OR,_}}
- = Caps,
-
+ Dict0,
+ RecvData) ->
#diameter_packet{header = #diameter_header{application_id = Id}}
= Pkt,
recv_request(find_recv_app(Id, SApps),
- {SvcName, OH, OR},
TPid,
- Apps,
- Mask,
Caps,
- Pkt).
+ Pkt,
+ Dict0,
+ RecvData).
%% find_recv_app/2
@@ -1736,7 +1720,7 @@ recv_request(#peer{apps = SApps, caps = Caps},
find_recv_app(?APP_ID_RELAY, _) ->
false;
-%% With any other id we either support it locally or as a relay.
+%% With any other id, must either support it or be a relay.
find_recv_app(Id, SApps) ->
keyfind([Id, ?APP_ID_RELAY], 1, SApps).
@@ -1752,26 +1736,27 @@ keyfind([Key | Rest], Pos, L) ->
T
end.
-%% recv_request/7
+%% recv_request/6
-recv_request({Id, Alias}, T, TPid, Apps, Mask, Caps, Pkt) ->
+recv_request({Id, Alias}, TPid, Caps, Pkt, Dict0, RecvData) ->
#diameter_app{dictionary = Dict}
- = A
- = find_app(Alias, Apps),
- recv_request(T,
- {TPid, Caps},
- A,
- Mask,
- diameter_codec:decode(Id, Dict, Pkt));
+ = App
+ = find_app(Alias, RecvData#recvdata.apps),
+ recv_req(App,
+ TPid,
+ Caps,
+ Dict0,
+ RecvData,
+ diameter_codec:decode(Id, Dict, Pkt));
%% Note that the decode is different depending on whether or not Id is
%% ?APP_ID_RELAY.
%% DIAMETER_APPLICATION_UNSUPPORTED 3007
%% A request was sent for an application that is not supported.
-recv_request(false, T, TPid, _, _, _, Pkt) ->
+recv_request(false, TPid, Caps, Pkt, Dict0, _) ->
As = collect_avps(Pkt),
- protocol_error(3007, T, TPid, Pkt#diameter_packet{avps = As}).
+ protocol_error(3007, TPid, Caps, Dict0, Pkt#diameter_packet{avps = As}).
collect_avps(Pkt) ->
case diameter_codec:collect_avps(Pkt) of
@@ -1781,7 +1766,7 @@ collect_avps(Pkt) ->
As
end.
-%% recv_request/5
+%% recv_req/6
%% Wrong number of bits somewhere in the message: reply.
%%
@@ -1790,9 +1775,14 @@ collect_avps(Pkt) ->
%% set to an unrecognized value, or that is inconsistent with the
%% AVP's definition.
%%
-recv_request(T, {TPid, _}, _, _, #diameter_packet{errors = [Bs | _]} = Pkt)
+recv_req(_App,
+ TPid,
+ Caps,
+ Dict0,
+ _RecvData,
+ #diameter_packet{errors = [Bs | _]} = Pkt)
when is_bitstring(Bs) ->
- protocol_error(3009, T, TPid, Pkt);
+ protocol_error(3009, TPid, Caps, Dict0, Pkt);
%% Either we support this application but don't recognize the command
%% or we're a relay and the command isn't proxiable.
@@ -1802,16 +1792,17 @@ recv_request(T, {TPid, _}, _, _, #diameter_packet{errors = [Bs | _]} = Pkt)
%% recognize or support. This MUST be used when a Diameter node
%% receives an experimental command that it does not understand.
%%
-recv_request(T,
- {TPid, _},
- #diameter_app{id = Id},
- _,
- #diameter_packet{header = #diameter_header{is_proxiable = P},
- msg = M}
- = Pkt)
+recv_req(#diameter_app{id = Id},
+ TPid,
+ Caps,
+ Dict0,
+ _RecvData,
+ #diameter_packet{header = #diameter_header{is_proxiable = P},
+ msg = M}
+ = Pkt)
when ?APP_ID_RELAY /= Id, undefined == M;
?APP_ID_RELAY == Id, not P ->
- protocol_error(3001, T, TPid, Pkt);
+ protocol_error(3001, TPid, Caps, Dict0, Pkt);
%% Error bit was set on a request.
%%
@@ -1820,30 +1811,38 @@ recv_request(T,
%% either set to an invalid combination, or to a value that is
%% inconsistent with the command code's definition.
%%
-recv_request(T,
- {TPid, _},
- _,
- _,
- #diameter_packet{header = #diameter_header{is_error = true}}
- = Pkt) ->
- protocol_error(3008, T, TPid, Pkt);
+recv_req(_App,
+ TPid,
+ Caps,
+ Dict0,
+ _RecvData,
+ #diameter_packet{header = #diameter_header{is_error = true}}
+ = Pkt) ->
+ protocol_error(3008, TPid, Caps, Dict0, Pkt);
%% A message in a locally supported application or a proxiable message
%% in the relay application. Don't distinguish between the two since
%% each application has its own callback config. That is, the user can
%% easily distinguish between the two cases.
-recv_request(T, TC, App, Mask, Pkt) ->
- request_cb(T, TC, App, Mask, examine(Pkt)).
+recv_req(App, TPid, Caps, Dict0, RecvData, Pkt) ->
+ request_cb(App, TPid, Caps, Dict0, RecvData, examine(Pkt)).
%% Note that there may still be errors but these aren't protocol
%% (3xxx) errors that lead to an answer-message.
-request_cb({SvcName, _OH, _OR} = T, TC, App, Mask, Pkt) ->
- request_cb(cb(App, handle_request, [Pkt, SvcName, TC]),
+request_cb(App,
+ TPid,
+ Caps,
+ Dict0,
+ #recvdata{service_name = SvcName}
+ = RecvData,
+ Pkt) ->
+ request_cb(cb(App, handle_request, [Pkt, SvcName, {TPid, Caps}]),
App,
- Mask,
- T,
- TC,
+ TPid,
+ Caps,
+ Dict0,
+ RecvData,
[],
Pkt).
@@ -1865,7 +1864,7 @@ 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/7
+%% request_cb/8
%% A reply may be an answer-message, constructed either here or by
%% the handle_request callback. The header from the incoming request
@@ -1874,24 +1873,39 @@ examine(#diameter_packet{errors = Es} = Pkt) ->
%% the base encoder.
request_cb({reply, Ans},
#diameter_app{dictionary = Dict},
- _,
- _,
- {TPid, _},
+ TPid,
+ _Caps,
+ Dict0,
+ _RecvData,
Fs,
Pkt) ->
- reply(Ans, Dict, TPid, Fs, Pkt);
+ reply(Ans, dict(Dict, Dict0, Ans), TPid, Fs, Pkt);
%% An 3xxx result code, for which the E-bit is set in the header.
-request_cb({protocol_error, RC}, _, _, T, {TPid, _}, Fs, Pkt)
+request_cb({protocol_error, RC},
+ _App,
+ TPid,
+ Caps,
+ Dict0,
+ _RecvData,
+ Fs,
+ Pkt)
when 3000 =< RC, RC < 4000 ->
- protocol_error(RC, T, TPid, Fs, Pkt);
+ protocol_error(RC, TPid, Caps, Dict0, 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, _}, Fs, Pkt) ->
- protocol_error(3001, T, TPid, Fs, Pkt);
+request_cb(noreply,
+ _App,
+ TPid,
+ Caps,
+ Dict0,
+ _RecvData,
+ Fs,
+ Pkt) ->
+ protocol_error(3001, TPid, Caps, Dict0, 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
@@ -1911,57 +1925,101 @@ request_cb(noreply, _, _, T, {TPid, _}, Fs, Pkt) ->
request_cb({A, Opts},
#diameter_app{id = Id}
= App,
- Mask,
- T,
- TC,
+ TPid,
+ Caps,
+ Dict0,
+ RecvData,
Fs,
Pkt)
when A == relay, Id == ?APP_ID_RELAY;
A == proxy, Id /= ?APP_ID_RELAY;
A == resend ->
- resend(Opts, App, Mask, T, TC, Fs, Pkt);
+ resend(Opts, App, TPid, Caps, Dict0, RecvData, Fs, Pkt);
-request_cb(discard, _, _, _, _, _, _) ->
+request_cb(discard, _, _, _, _, _, _, _) ->
ok;
-request_cb({eval_packet, RC, F}, App, Mask, T, TC, Fs, Pkt) ->
- request_cb(RC, App, Mask, T, TC, [F|Fs], Pkt);
+request_cb({eval_packet, RC, F}, App, TPid, Caps, Dict0, RecvData, Fs, Pkt) ->
+ request_cb(RC, App, TPid, Caps, Dict0, RecvData, [F|Fs], Pkt);
-request_cb({eval, RC, F}, App, Mask, T, TC, Fs, Pkt) ->
- request_cb(RC, App, Mask, T, TC, Fs, Pkt),
+request_cb({eval, RC, F}, App, TPid, Caps, Dict0, RecvData, Fs, Pkt) ->
+ request_cb(RC, App, TPid, Caps, Dict0, RecvData, Fs, Pkt),
diameter_lib:eval(F).
-%% protocol_error/5
+%% dict/3
+
+%% An incoming answer, not yet decoded.
+dict(Dict, Dict0, #diameter_packet{header
+ = #diameter_header{is_request = false,
+ is_error = E},
+ msg = undefined}) ->
+ if E -> Dict0; true -> Dict end;
+
+dict(Dict, Dict0, [Msg]) ->
+ dict(Dict, Dict0, Msg);
+
+dict(Dict, Dict0, #diameter_packet{msg = Msg}) ->
+ dict(Dict, Dict0, Msg);
+
+dict(_Dict, Dict0, ['answer-message' | _]) ->
+ Dict0;
+
+dict(Dict, Dict0, Rec) ->
+ try
+ 'answer-message' = Dict0:rec2msg(element(1,Rec)),
+ Dict0
+ catch
+ error:_ -> Dict
+ end.
+
+%% protocol_error/6
+
+protocol_error(RC, TPid, Caps, Dict0, Fs, Pkt) ->
+ #diameter_caps{origin_host = {OH,_},
+ origin_realm = {OR,_}}
+ = Caps,
+ #diameter_packet{avps = Avps, errors = Es}
+ = Pkt,
-protocol_error(RC, {_, OH, OR}, TPid, Fs, Pkt) ->
- #diameter_packet{avps = Avps, errors = Es} = Pkt,
?LOG({error, RC}, Pkt),
- reply(answer_message({OH, OR, RC}, Avps),
- ?BASE,
+ reply(answer_message({OH, OR, RC}, Dict0, Avps),
+ Dict0,
TPid,
Fs,
Pkt#diameter_packet{errors = [RC | Es]}).
%% Note that reply/5 may set the result code once more. It's set in
-%% answer_message/2 in case reply/5 doesn't.
+%% answer_message/3 in case reply/5 doesn't.
-%% protocol_error/4
+%% protocol_error/5
-protocol_error(RC, T, TPid, Pkt) ->
- protocol_error(RC, T, TPid, [], Pkt).
+protocol_error(RC, TPid, Caps, Dict0, Pkt) ->
+ protocol_error(RC, TPid, Caps, Dict0, [], Pkt).
%% resend/7
%%
%% Resend a message as a relay or proxy agent.
resend(Opts,
- #diameter_app{} = App,
- Mask,
- {_SvcName, OH, _OR} = T,
- {_TPid, _Caps} = TC,
+ #diameter_app{}
+ = App,
+ TPid,
+ #diameter_caps{origin_host = {OH,_}}
+ = Caps,
+ Dict0,
+ RecvData,
Fs,
- #diameter_packet{avps = Avps} = Pkt) ->
- {Code, _Flags, Vid} = ?BASE:avp_header('Route-Record'),
- resend(is_loop(Code, Vid, OH, Avps), Opts, App, Mask, T, TC, Fs, Pkt).
+ #diameter_packet{avps = Avps}
+ = Pkt) ->
+ {Code, _Flags, Vid} = Dict0:avp_header('Route-Record'),
+ resend(is_loop(Code, Vid, OH, Dict0, Avps),
+ Opts,
+ App,
+ TPid,
+ Caps,
+ Dict0,
+ RecvData,
+ Fs,
+ Pkt).
%% DIAMETER_LOOP_DETECTED 3005
%% An agent detected a loop while trying to get the message to the
@@ -1969,8 +2027,8 @@ resend(Opts,
%% if one is available, but the peer reporting the error has
%% identified a configuration problem.
-resend(true, _, _, _, T, {TPid, _}, Fs, Pkt) -> %% Route-Record loop
- protocol_error(3005, T, TPid, Fs, Pkt);
+resend(true, _Opts, _App, TPid, Caps, Dict0, _RecvData, Fs, Pkt) ->
+ protocol_error(3005, TPid, Caps, Dict0, Fs, Pkt);
%% 6.1.8. Relaying and Proxying Requests
%%
@@ -1981,18 +2039,21 @@ resend(true, _, _, _, T, {TPid, _}, Fs, Pkt) -> %% Route-Record loop
resend(false,
Opts,
App,
- Mask,
- {SvcName, _, _} = T,
- {TPid, #diameter_caps{origin_host = {_, OH}}},
+ TPid,
+ #diameter_caps{origin_host = {_,OH}}
+ = Caps,
+ Dict0,
+ #recvdata{service_name = SvcName,
+ sequence = Mask},
Fs,
#diameter_packet{header = Hdr0,
avps = Avps}
= Pkt) ->
- Route = #diameter_avp{data = {?BASE, 'Route-Record', OH}},
+ Route = #diameter_avp{data = {Dict0, 'Route-Record', OH}},
Seq = diameter_session:sequence(Mask),
Hdr = Hdr0#diameter_header{hop_by_hop_id = Seq},
Msg = [Hdr, Route | Avps],
- resend(call(SvcName, App, Msg, Opts), T, TPid, Fs, Pkt).
+ resend(call(SvcName, App, Msg, Opts), TPid, Caps, Dict0, 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
@@ -2009,47 +2070,49 @@ resend(false,
%% RFC 6.3 says that a relay agent does not modify Origin-Host but
%% says nothing about a proxy. Assume it should behave the same way.
-%% resend/4
+%% resend/6
%%
%% Relay a reply to a relayed request.
%% Answer from the peer: reset the hop by hop identifier and send.
resend(#diameter_packet{bin = B}
= Pkt,
- _,
TPid,
+ _Caps,
+ _Dict0,
Fs,
#diameter_packet{header = #diameter_header{hop_by_hop_id = Id},
transport_data = TD}) ->
P = Pkt#diameter_packet{bin = diameter_codec:hop_by_hop_id(Id, B),
- transport_data = TD},
+ transport_data = TD},
eval_packet(P, Fs),
send(TPid, P);
%% TODO: counters
%% Or not: DIAMETER_UNABLE_TO_DELIVER.
-resend(_, T, TPid, Fs, Pkt) ->
- protocol_error(3002, T, TPid, Fs, Pkt).
+resend(_, TPid, Caps, Dict0, Fs, Pkt) ->
+ protocol_error(3002, TPid, Caps, Dict0, Fs, Pkt).
-%% is_loop/4
+%% is_loop/5
%%
%% Is there a Route-Record AVP with our Origin-Host?
is_loop(Code,
Vid,
Bin,
+ _Dict0,
[#diameter_avp{code = Code, vendor_id = Vid, data = Bin} | _]) ->
true;
-is_loop(_, _, _, []) ->
+is_loop(_, _, _, _, []) ->
false;
-is_loop(Code, Vid, OH, [_ | Avps])
+is_loop(Code, Vid, OH, Dict0, [_ | Avps])
when is_binary(OH) ->
- is_loop(Code, Vid, OH, Avps);
+ is_loop(Code, Vid, OH, Dict0, Avps);
-is_loop(Code, Vid, OH, Avps) ->
- is_loop(Code, Vid, ?BASE:avp(encode, OH, 'Route-Record'), Avps).
+is_loop(Code, Vid, OH, Dict0, Avps) ->
+ is_loop(Code, Vid, Dict0:avp(encode, OH, 'Route-Record'), Dict0, Avps).
%% reply/5
%%
@@ -2066,8 +2129,7 @@ reply([Msg], Dict, TPid, Fs, Pkt)
reply(Msg, Dict, TPid, Fs, #diameter_packet{errors = Es} = ReqPkt)
when [] == Es;
is_record(hd(Msg), diameter_header) ->
- Pkt = diameter_codec:encode(Dict, make_answer_packet(Msg, ReqPkt)),
- eval_packet(Pkt, Fs),
+ Pkt = encode(Dict, make_answer_packet(Msg, ReqPkt), Fs),
incr(send, Pkt, Dict, TPid), %% count result codes in sent answers
send(TPid, Pkt);
@@ -2124,15 +2186,15 @@ rc(RC) ->
%% rc/4
-rc(#diameter_packet{msg = Rec} = Pkt, RC, Failed, Dict) ->
- Pkt#diameter_packet{msg = rc(Rec, RC, Failed, Dict)};
+rc(#diameter_packet{msg = Rec} = Pkt, RC, Failed, DictT) ->
+ Pkt#diameter_packet{msg = rc(Rec, RC, Failed, DictT)};
-rc(Rec, RC, Failed, Dict)
+rc(Rec, RC, Failed, DictT)
when is_integer(RC) ->
set(Rec,
- lists:append([rc(Rec, {'Result-Code', RC}, Dict),
- failed_avp(Rec, Failed, Dict)]),
- Dict).
+ lists:append([rc(Rec, {'Result-Code', RC}, DictT),
+ failed_avp(Rec, Failed, DictT)]),
+ DictT).
%% Reply as name and tuple list ...
set([_|_] = Ans, Avps, _) ->
@@ -2259,20 +2321,20 @@ fa(Rec, FailedAvp, Dict) ->
%% Error-Message AVP is not intended to be useful in real-time, and
%% SHOULD NOT be expected to be parsed by network entities.
-%% answer_message/2
+%% answer_message/3
-answer_message({OH, OR, RC}, Avps) ->
- {Code, _, Vid} = ?BASE:avp_header('Session-Id'),
+answer_message({OH, OR, RC}, Dict0, Avps) ->
+ {Code, _, Vid} = Dict0:avp_header('Session-Id'),
['answer-message', {'Origin-Host', OH},
{'Origin-Realm', OR},
{'Result-Code', RC}
- | session_id(Code, Vid, Avps)].
+ | session_id(Code, Vid, Dict0, Avps)].
-session_id(Code, Vid, Avps)
+session_id(Code, Vid, Dict0, Avps)
when is_list(Avps) ->
try
{value, #diameter_avp{data = D}} = find_avp(Code, Vid, Avps),
- [{'Session-Id', [?BASE:avp(decode, D, 'Session-Id')]}]
+ [{'Session-Id', [Dict0:avp(decode, D, 'Session-Id')]}]
catch
error: _ ->
[]
@@ -2353,9 +2415,9 @@ find(Pred, [H|T]) ->
%% code, the missing vendor id, and a zero filled payload of the minimum
%% required length for the omitted AVP will be added.
-%%% ---------------------------------------------------------------------------
-%%% # handle_answer/3
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # handle_answer/3
+%% ---------------------------------------------------------------------------
%% Process an answer message in call-specific process.
@@ -2364,9 +2426,11 @@ handle_answer(SvcName, _, {error, Req, Reason}) ->
handle_answer(SvcName,
AnswerErrors,
- {answer, #request{dictionary = Dict} = Req, Pkt}) ->
- answer(examine(diameter_codec:decode(Dict, Pkt)),
+ {answer, #request{dictionary = Dict} = Req, Dict0, Pkt}) ->
+ Mod = dict(Dict, Dict0, Pkt),
+ answer(examine(diameter_codec:decode(Mod, Pkt)),
SvcName,
+ Mod,
AnswerErrors,
Req).
@@ -2374,9 +2438,7 @@ handle_answer(SvcName,
%% just resend with a new hop by hop identifier, but might a proxy
%% want to examine the answer?
-answer(Pkt, SvcName, AE, #request{transport = TPid,
- dictionary = Dict}
- = Req) ->
+answer(Pkt, SvcName, Dict, AE, #request{transport = TPid} = Req) ->
try
incr(recv, Pkt, Dict, TPid)
of
@@ -2408,7 +2470,7 @@ a(Pkt, SvcName, discard, Req) ->
%%
%% Increment a stats counter for an incoming or outgoing message.
-%% TODO: fix
+%% Outgoing message as binary: don't yet count. (TODO)
incr(_, #diameter_packet{msg = undefined}, _, _) ->
ok;
@@ -2495,9 +2557,9 @@ x(Reason, F, A) ->
x(T) ->
exit(T).
-%%% ---------------------------------------------------------------------------
-%%% # failover/[23]
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # failover/[23]
+%% ---------------------------------------------------------------------------
%% Failover as a consequence of request_peer_down/2.
failover({_, #request{handler = Pid} = Req, TRef}, S) ->
@@ -2515,7 +2577,7 @@ failover(TRef, Seqs, S)
%% prepare_request returned a binary ...
rt(#request{packet = #diameter_packet{msg = undefined}}, _) ->
- false; %% TODO: Not what we should do.
+ false; %% Not what we should do but binaries are only parially supported
%% ... or not.
rt(#request{packet = #diameter_packet{msg = Msg},
@@ -2524,9 +2586,9 @@ rt(#request{packet = #diameter_packet{msg = Msg},
S) ->
find_transport(get_destination(Dict, Msg), Req, S).
-%%% ---------------------------------------------------------------------------
-%%% # report_status/5
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # report_status/5
+%% ---------------------------------------------------------------------------
report_status(Status,
#watchdog{ref = Ref,
@@ -2551,9 +2613,9 @@ send_event(SvcName, Info) ->
send_event(#diameter_event{service = SvcName} = E) ->
lists:foreach(fun({_, Pid}) -> Pid ! E end, subscriptions(SvcName)).
-%%% ---------------------------------------------------------------------------
-%%% # share_peer/5
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # share_peer/5
+%% ---------------------------------------------------------------------------
share_peer(up, Caps, Aliases, TPid, #state{options = [_, {_, true} | _],
service_name = Svc}) ->
@@ -2562,9 +2624,9 @@ share_peer(up, Caps, Aliases, TPid, #state{options = [_, {_, true} | _],
share_peer(_, _, _, _, _) ->
ok.
-%%% ---------------------------------------------------------------------------
-%%% # share_peers/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # share_peers/2
+%% ---------------------------------------------------------------------------
share_peers(Pid, #state{options = [_, {_, true} | _],
local_peers = PDict}) ->
@@ -2576,9 +2638,9 @@ share_peers(_, _) ->
sp(Pid, Alias, Peers) ->
lists:foreach(fun({P,C}) -> Pid ! {peer, P, [Alias], C} end, Peers).
-%%% ---------------------------------------------------------------------------
-%%% # remote_peer_up/4
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # remote_peer_up/4
+%% ---------------------------------------------------------------------------
remote_peer_up(Pid, Aliases, Caps, #state{options = [_, _, {_, true} | _],
service = Svc,
@@ -2598,9 +2660,9 @@ rpu(Pid, Caps, PDict, Aliases) ->
T = {Pid, Caps},
lists:foreach(fun(A) -> ?Dict:append(A, T, PDict) end, Aliases).
-%%% ---------------------------------------------------------------------------
-%%% # remote_peer_down/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # remote_peer_down/2
+%% ---------------------------------------------------------------------------
remote_peer_down(Pid, #state{options = [_, _, {_, true} | _],
shared_peers = PDict}) ->
@@ -2609,13 +2671,13 @@ remote_peer_down(Pid, #state{options = [_, _, {_, true} | _],
rpd(Pid, Alias, PDict) ->
?Dict:update(Alias, fun(Ps) -> lists:keydelete(Pid, 1, Ps) end, PDict).
-%%% ---------------------------------------------------------------------------
-%%% find_transport/[34]
-%%%
-%%% Return: {TransportPid, #diameter_caps{}, #diameter_app{}}
-%%% | false
-%%% | {error, Reason}
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% find_transport/[34]
+%%
+%% Return: {TransportPid, #diameter_caps{}, #diameter_app{}}
+%% | false
+%% | {error, Reason}
+%% ---------------------------------------------------------------------------
%% Initial call, from an arbitrary process.
find_transport({alias, Alias}, Msg, Opts, #state{service = Svc} = S) ->
@@ -2726,13 +2788,7 @@ get_avp_value(_, Name, [_MsgName | Avps]) ->
undefined
end;
-%% Record might be an answer message in the common dictionary.
-get_avp_value(Dict, Name, Rec)
- when Dict /= ?BASE, element(1, Rec) == 'diameter_base_answer-message' ->
- get_avp_value(?BASE, Name, Rec);
-
-%% Message is typically a record but not necessarily: diameter:call/4
-%% can be passed an arbitrary term.
+%% Message is typically a record but not necessarily.
get_avp_value(Dict, Name, Rec) ->
try
Dict:'#get-'(Name, Rec)
@@ -2747,19 +2803,19 @@ avp_decode(Dict, Name, #diameter_avp{value = undefined,
avp_decode(_, _, #diameter_avp{value = V}) ->
V.
-%%% ---------------------------------------------------------------------------
-%%% # pick_peer(App, [DestRealm, DestHost], Filter, #state{})
-%%%
-%%% Return: {TransportPid, #diameter_caps{}, App}
-%%% | false
-%%% | {error, Reason}
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # pick_peer/4
+%%
+%% Return: {TransportPid, #diameter_caps{}, App}
+%% | false
+%% | {error, Reason}
+%% ---------------------------------------------------------------------------
%% Find transports to a given realm/host.
pick_peer(#diameter_app{alias = Alias}
= App,
- [_,_] = RH,
+ [_Realm ,_Host] = RH,
Filter,
#state{local_peers = L,
shared_peers = S,
@@ -2907,9 +2963,9 @@ transports(#state{watchdogT = WatchdogT}) ->
[{'is_pid', '$1'}],
['$1']}]).
-%%% ---------------------------------------------------------------------------
-%%% # service_info/2
-%%% ---------------------------------------------------------------------------
+%% ---------------------------------------------------------------------------
+%% # service_info/2
+%% ---------------------------------------------------------------------------
%% The config passed to diameter:start_service/2.
-define(CAP_INFO, ['Origin-Host',
diff --git a/lib/diameter/src/base/diameter_watchdog.erl b/lib/diameter/src/base/diameter_watchdog.erl
index 10ab246b88..a6be6a9e29 100644
--- a/lib/diameter/src/base/diameter_watchdog.erl
+++ b/lib/diameter/src/base/diameter_watchdog.erl
@@ -45,6 +45,8 @@
-define(DEFAULT_TW_INIT, 30000). %% RFC 3539 ch 3.4.1
-define(NOMASK, {0,32}). %% default sequence mask
+-define(BASE, ?DIAMETER_DICT_COMMON).
+
-record(watchdog,
{%% PCB - Peer Control Block; see RFC 3539, Appendix A
status = initial :: initial | okay | suspect | down | reopen,
@@ -56,8 +58,10 @@
%% end PCB
parent = self() :: pid(), %% service process
transport :: pid() | undefined, %% peer_fsm process
- tref :: reference(), %% reference for current watchdog timer
- message_data, %% term passed into diameter_service with message
+ tref :: reference(), %% reference for current watchdog timer
+ dictionary :: module(), %% common dictionary
+ receive_data :: term(),
+ %% term passed into diameter_service with incoming message
sequence :: diameter:sequence(), %% mask
restrict :: {diameter:restriction(), boolean()},
shutdown = false :: boolean()}).
@@ -70,13 +74,12 @@
%% reason.
%% ---------------------------------------------------------------------------
--spec start(Type, {RecvData, [Opt], SvcName, SvcOpts, #diameter_service{}})
+-spec start(Type, {RecvData, [Opt], SvcOpts, #diameter_service{}})
-> {reference(), pid()}
when Type :: {connect|accept, diameter:transport_ref()},
RecvData :: term(),
Opt :: diameter:transport_opt(),
- SvcOpts :: [diameter:service_opt()],
- SvcName :: diameter:service_name().
+ SvcOpts :: [diameter:service_opt()].
start({_,_} = Type, T) ->
Ack = make_ref(),
@@ -105,7 +108,6 @@ init(T) ->
i({Ack, T, Pid, {RecvData,
Opts,
- SvcName,
SvcOpts,
#diameter_service{applications = Apps,
capabilities = Caps}
@@ -118,12 +120,14 @@ i({Ack, T, Pid, {RecvData,
{_,_} = Mask = proplists:get_value(sequence, SvcOpts),
Restrict = proplists:get_value(restrict_connections, SvcOpts),
Nodes = restrict_nodes(Restrict),
+ Dict0 = common_dictionary(Apps),
#watchdog{parent = Pid,
- transport = start(T, Opts, Mask, Nodes, Svc),
+ transport = start(T, Opts, Mask, Nodes, Dict0, Svc),
tw = proplists:get_value(watchdog_timer,
Opts,
?DEFAULT_TW_INIT),
- message_data = {RecvData, SvcName, Apps, Mask},
+ receive_data = RecvData,
+ dictionary = Dict0,
sequence = Mask,
restrict = {Restrict, lists:member(node(), Nodes)}}.
@@ -137,11 +141,60 @@ wait(Ref, Pid) ->
%% start/5
-start(T, Opts, Mask, Nodes, Svc) ->
+start(T, Opts, Mask, Nodes, Dict0, Svc) ->
{_MRef, Pid}
- = diameter_peer_fsm:start(T, Opts, {Mask, Nodes, Svc}),
+ = diameter_peer_fsm:start(T, Opts, {Mask, Nodes, Dict0, Svc}),
Pid.
+%% common_dictionary/1
+%%
+%% Determine the dictionary of the Diameter common application with
+%% Application Id 0. Fail on config errors.
+
+common_dictionary(Apps) ->
+ case
+ orddict:fold(fun dict0/3,
+ false,
+ lists:foldl(fun(#diameter_app{dictionary = M}, D) ->
+ orddict:append(M:id(), M, D)
+ end,
+ orddict:new(),
+ Apps))
+ of
+ {value, Mod} ->
+ Mod;
+ false ->
+ %% A transport should configure a common dictionary but
+ %% don't require it. Not configuring a common dictionary
+ %% means a user won't be able either send of receive
+ %% messages in the common dictionary: incoming request
+ %% will be answered with 3007 and outgoing requests cannot
+ %% be sent. The dictionary returned here is oly used for
+ %% messages diameter sends and receives: CER/CEA, DPR/DPA
+ %% and DWR/DWA.
+ ?BASE
+ end.
+
+%% Each application should be represented by a single dictionary.
+dict0(Id, [_,_|_] = Ms, _) ->
+ config_error({multiple_dictionaries, Ms, {application_id, Id}});
+
+%% An explicit common dictionary.
+dict0(?APP_ID_COMMON, [Mod], _) ->
+ {value, Mod};
+
+%% A pure relay, in which case the common application is implicit.
+%% This uses the fact that the common application will already have
+%% been folded.
+dict0(?APP_ID_RELAY, _, false) ->
+ {value, ?BASE};
+
+dict0(_, _, Acc) ->
+ Acc.
+
+config_error(T) ->
+ ?ERROR({configuration_error, T}).
+
%% handle_call/3
handle_call(_, _, State) ->
@@ -353,16 +406,16 @@ getr(Key) ->
eraser(Key) ->
erase({?MODULE, Key}).
-%% encode/2
+%% encode/3
-encode(Msg, Mask) ->
+encode(Msg, Mask, Dict) ->
Seq = diameter_session:sequence(Mask),
Hdr = #diameter_header{version = ?DIAMETER_VERSION,
end_to_end_id = Seq,
hop_by_hop_id = Seq},
Pkt = #diameter_packet{header = Hdr,
msg = Msg},
- #diameter_packet{bin = Bin} = diameter_codec:encode(?BASE, Pkt),
+ #diameter_packet{bin = Bin} = diameter_codec:encode(Dict, Pkt),
Bin.
%% okay/3
@@ -416,9 +469,10 @@ tw({M,F,A}) ->
send_watchdog(#watchdog{pending = false,
transport = TPid,
+ dictionary = Dict0,
sequence = Mask}
= S) ->
- send(TPid, {send, encode(getr(dwr), Mask)}),
+ send(TPid, {send, encode(getr(dwr), Mask, Dict0)}),
?LOG(send, 'DWR'),
S#watchdog{pending = true}.
@@ -446,8 +500,9 @@ rcv(N, _, _)
false;
rcv(_, Pkt, #watchdog{transport = TPid,
- message_data = T}) ->
- diameter_service:receive_message(TPid, Pkt, T).
+ dictionary = Dict0,
+ receive_data = T}) ->
+ diameter_service:receive_message(TPid, Pkt, Dict0, T).
throwaway(S) ->
throw({?MODULE, throwaway, S}).
@@ -627,13 +682,15 @@ restart(S) ->
%% state down rather then initial when receiving notification of an
%% open connection.
-restart({{connect, _} = T, Opts, Svc}, #watchdog{parent = Pid,
- sequence = Mask,
- restrict = {R,_}}
- = S) ->
+restart({{connect, _} = T, Opts, Svc},
+ #watchdog{parent = Pid,
+ sequence = Mask,
+ restrict = {R,_},
+ dictionary = Dict0}
+ = S) ->
send(Pid, {reconnect, self()}),
Nodes = restrict_nodes(R),
- S#watchdog{transport = start(T, Opts, Mask, Nodes, Svc),
+ S#watchdog{transport = start(T, Opts, Mask, Nodes, Dict0, Svc),
restrict = {R, lists:member(node(), Nodes)}};
%% No restriction on the number of connections to the same peer: just
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-13 16:18:16 +0000