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authorAnders Svensson <[email protected]>2017-03-06 19:37:54 +0100
committerAnders Svensson <[email protected]>2017-03-08 07:34:06 +0100
commite4f28f3b45b58604f2022b321185e164441f9cd7 (patch)
treec492e9226b827c2e04ec52c0c9685354b747ef54 /lib/diameter
parent3473ecd83a7bbe7e0bebb865f25dddb93e3bf10f (diff)
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Add transport_opt() capx_strictness
To allow the Peer State Machine requirement that only the expected capabilities exchange message be received in the relevant state to be relaxed. If {capx_strictness, false} is configured then anything bu the expected CER/CEA is ignored. This is non-standard behaviour, and thusfar undocumented. Use at your own risk.
Diffstat (limited to 'lib/diameter')
-rw-r--r--lib/diameter/src/base/diameter.erl3
-rw-r--r--lib/diameter/src/base/diameter_config.erl5
-rw-r--r--lib/diameter/src/base/diameter_peer_fsm.erl14
3 files changed, 20 insertions, 2 deletions
diff --git a/lib/diameter/src/base/diameter.erl b/lib/diameter/src/base/diameter.erl
index e8f2f63f86..253f64133c 100644
--- a/lib/diameter/src/base/diameter.erl
+++ b/lib/diameter/src/base/diameter.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2017. 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.
@@ -377,6 +377,7 @@ call(SvcName, App, Message) ->
| {capabilities, [capability()]}
| {capabilities_cb, evaluable()}
| {capx_timeout, 'Unsigned32'()}
+ | {capx_strictness, boolean()}
| {disconnect_cb, evaluable()}
| {dpr_timeout, 'Unsigned32'()}
| {dpa_timeout, 'Unsigned32'()}
diff --git a/lib/diameter/src/base/diameter_config.erl b/lib/diameter/src/base/diameter_config.erl
index fdbbd412a1..245a3ea7ac 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 2010-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2017. 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.
@@ -580,6 +580,9 @@ opt({K, Tmo})
K == dpa_timeout ->
?IS_UINT32(Tmo);
+opt({capx_strictness, B}) ->
+ is_boolean(B);
+
opt({length_errors, T}) ->
lists:member(T, [exit, handle, discard]);
diff --git a/lib/diameter/src/base/diameter_peer_fsm.erl b/lib/diameter/src/base/diameter_peer_fsm.erl
index 996e75a8d3..83f4b2c856 100644
--- a/lib/diameter/src/base/diameter_peer_fsm.erl
+++ b/lib/diameter/src/base/diameter_peer_fsm.erl
@@ -128,6 +128,7 @@
%% outgoing DPR; boolean says whether or not
%% the request was sent explicitly with
%% diameter:call/4.
+ strict :: boolean(),
length_errors :: exit | handle | discard,
incoming_maxlen :: integer() | infinity}).
@@ -233,6 +234,7 @@ i({Ack, WPid, {M, Ref} = T, Opts, {SvcOpts, Nodes, Dict0, Svc}}) ->
proplists:get_value(dpa_timeout, Opts, ?DPA_TIMEOUT)}),
Tmo = proplists:get_value(capx_timeout, Opts, ?CAPX_TIMEOUT),
+ Strictness = proplists:get_value(capx_strictness, Opts, true),
OnLengthErr = proplists:get_value(length_errors, Opts, exit),
{TPid, Addrs} = start_transport(T, Rest, Svc),
@@ -246,6 +248,7 @@ i({Ack, WPid, {M, Ref} = T, Opts, {SvcOpts, Nodes, Dict0, Svc}}) ->
mode = M,
service = svc(Svc, Addrs),
length_errors = OnLengthErr,
+ strict = Strictness,
incoming_maxlen = Maxlen}.
%% The transport returns its local ip addresses so that different
%% transports on the same service can use different local addresses.
@@ -614,6 +617,17 @@ recv1(_,
when M < size(Bin) ->
invalid(false, incoming_maxlen_exceeded, {size(Bin), H});
+%% Ignore anything but an expected CER/CEA if so configured. This is
+%% non-standard behaviour.
+recv1(Name, _, #state{state = {'Wait-CEA', _, _},
+ strict = false})
+ when Name /= 'CEA' ->
+ ok;
+recv1(Name, _, #state{state = recv_CER,
+ strict = false})
+ when Name /= 'CER' ->
+ ok;
+
%% Incoming request after outgoing DPR: discard. Don't discard DPR, so
%% both ends don't do so when sending simultaneously.
recv1(Name,