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-rw-r--r--lib/diameter/include/diameter_gen.hrl57
-rw-r--r--lib/diameter/src/base/diameter_codec.erl18
-rw-r--r--lib/diameter/src/base/diameter_types.erl2
-rw-r--r--lib/diameter/test/diameter_codec_SUITE.erl188
4 files changed, 243 insertions, 22 deletions
diff --git a/lib/diameter/include/diameter_gen.hrl b/lib/diameter/include/diameter_gen.hrl
index bc25f7d472..8272904856 100644
--- a/lib/diameter/include/diameter_gen.hrl
+++ b/lib/diameter/include/diameter_gen.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. 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
@@ -25,6 +25,9 @@
-define(THROW(T), throw({?MODULE, T})).
+%% Tag common to generated dictionaries.
+-define(TAG, diameter_gen).
+
%% Key to a value in the process dictionary that determines whether or
%% not an unrecognized AVP setting the M-bit should be regarded as an
%% error or not. See is_strict/0.
@@ -48,13 +51,20 @@
%% dictionary.
putr(K,V) ->
- put({?MODULE, K}, V).
+ put({?TAG, K}, V).
getr(K) ->
- get({?MODULE, K}).
+ case get({?TAG, K}) of
+ undefined ->
+ V = erase({?MODULE, K}), %% written in old code
+ V == undefined orelse putr(K,V),
+ V;
+ V ->
+ V
+ end.
eraser(K) ->
- erase({?MODULE, K}).
+ erase({?TAG, K}).
%% ---------------------------------------------------------------------------
%% # encode_avps/2
@@ -313,12 +323,20 @@ d(Name, Avp, Acc) ->
%% decode is packed into 'AVP'.
Mod = dict(Failed), %% Dictionary to decode in.
+ %% On decode, a Grouped AVP is represented as a #diameter_avp{}
+ %% list with AVP as head and component AVPs as tail. On encode,
+ %% data can be a list of component AVPs.
+
try Mod:avp(decode, Data, AvpName) of
V ->
{Avps, T} = Acc,
{H, A} = ungroup(V, Avp),
{[H | Avps], pack_avp(Name, A, T)}
catch
+ throw: {?TAG, {grouped, RC, ComponentAvps}} ->
+ {Avps, {Rec, Errors}} = Acc,
+ A = trim(Avp),
+ {[[A | trim(ComponentAvps)] | Avps], {Rec, [{RC, A} | Errors]}};
error: Reason ->
d(undefined == Failed orelse is_failed(),
Reason,
@@ -338,6 +356,10 @@ d(Name, Avp, Acc) ->
trim(#diameter_avp{data = <<0:1, Bin/binary>>} = Avp) ->
Avp#diameter_avp{data = Bin};
+trim(Avps)
+ when is_list(Avps) ->
+ lists:map(fun trim/1, Avps);
+
trim(Avp) ->
Avp.
@@ -582,22 +604,37 @@ value(_, Avp) ->
%% # grouped_avp/3
%% ---------------------------------------------------------------------------
--spec grouped_avp(decode, avp_name(), binary())
+-spec grouped_avp(decode, avp_name(), bitstring())
-> {avp_record(), [avp()]};
(encode, avp_name(), avp_record() | avp_values())
-> binary()
| no_return().
+%% Length error induced by diameter_codec:collect_avps/1.
+grouped_avp(decode, _Name, <<0:1, _/binary>>) ->
+ throw({?TAG, {grouped, 5014, []}});
+
grouped_avp(decode, Name, Data) ->
- {Rec, Avps, []} = decode_avps(Name, diameter_codec:collect_avps(Data)),
- {Rec, Avps};
-%% A failed match here will result in 5004. Note that this is the only
-%% AVP type that doesn't just return the decoded record, also
-%% returning the list of component AVP's.
+ grouped_decode(Name, diameter_codec:collect_avps(Data));
grouped_avp(encode, Name, Data) ->
encode_avps(Name, Data).
+%% grouped_decode/2
+%%
+%% Note that Grouped is the only AVP type that doesn't just return a
+%% decoded value, also returning the list of component diameter_avp
+%% records.
+
+grouped_decode(_Name, {Error, Acc}) ->
+ {RC, Avp} = Error,
+ throw({?TAG, {grouped, RC, [Avp | Acc]}});
+
+grouped_decode(Name, ComponentAvps) ->
+ {Rec, Avps, Es} = decode_avps(Name, ComponentAvps),
+ [] == Es orelse throw({?TAG, {grouped, 5004, Avps}}), %% decode failure
+ {Rec, Avps}.
+
%% ---------------------------------------------------------------------------
%% # empty_group/1
%% ---------------------------------------------------------------------------
diff --git a/lib/diameter/src/base/diameter_codec.erl b/lib/diameter/src/base/diameter_codec.erl
index f9bc44cf61..b4ecb63961 100644
--- a/lib/diameter/src/base/diameter_codec.erl
+++ b/lib/diameter/src/base/diameter_codec.erl
@@ -564,14 +564,14 @@ split_data(Bin, Len) ->
<<Data:Len/binary, _:Pad/binary, Rest/binary>> ->
{Data, Rest};
_ ->
- %% Header length points past the end of the message. As
- %% stated in the 6733 text above, it's sufficient to
- %% return a zero-filled minimal payload if this is a
- %% request. Do this (in cases that we know the type) by
- %% inducing a decode failure and letting the dictionary's
- %% decode (in diameter_gen) deal with it. Here we don't
- %% know type. If the type isn't known, then the decode
- %% just strips the extra bit.
+ %% Header length points past the end of the message, or
+ %% doesn't span the header. As stated in the 6733 text
+ %% above, it's sufficient to return a zero-filled minimal
+ %% payload if this is a request. Do this (in cases that we
+ %% know the type) by inducing a decode failure and letting
+ %% the dictionary's decode (in diameter_gen) deal with it.
+ %% Here we don't know type. If the type isn't known, then
+ %% the decode just strips the extra bit.
{<<0:1, Bin/binary>>, <<>>}
end.
@@ -585,6 +585,8 @@ split_data(Bin, Len) ->
%% dictionary doesn't know about specific AVP's.
%% Grouped AVP whose components need packing ...
+pack_avp([#diameter_avp{} = A | Avps]) ->
+ pack_avp(A#diameter_avp{data = Avps});
pack_avp(#diameter_avp{data = [#diameter_avp{} | _] = Avps} = A) ->
pack_avp(A#diameter_avp{data = encode_avps(Avps)});
diff --git a/lib/diameter/src/base/diameter_types.erl b/lib/diameter/src/base/diameter_types.erl
index ca3338be5f..442d90c98b 100644
--- a/lib/diameter/src/base/diameter_types.erl
+++ b/lib/diameter/src/base/diameter_types.erl
@@ -75,7 +75,7 @@
%% message indicating this error MUST include the offending AVPs
%% within a Failed-AVP AVP.
%%
--define(INVALID_LENGTH(Bin), erlang:error({'DIAMETER', 5014, Bin})).
+-define(INVALID_LENGTH(Bitstr), erlang:error({'DIAMETER', 5014, Bitstr})).
%% -------------------------------------------------------------------------
%% 3588, 4.2. Basic AVP Data Formats
diff --git a/lib/diameter/test/diameter_codec_SUITE.erl b/lib/diameter/test/diameter_codec_SUITE.erl
index cd8ca41f66..64ea90554d 100644
--- a/lib/diameter/test/diameter_codec_SUITE.erl
+++ b/lib/diameter/test/diameter_codec_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2015. 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
@@ -29,6 +29,9 @@
-export([suite/0,
all/0,
+ groups/0,
+ init_per_group/2,
+ end_per_group/2,
init_per_testcase/2,
end_per_testcase/2]).
@@ -36,9 +39,13 @@
-export([base/1,
gen/1,
lib/1,
- unknown/1]).
+ unknown/1,
+ success/1,
+ grouped_error/1,
+ failed_error/1]).
-include("diameter_ct.hrl").
+-include("diameter.hrl").
-define(L, atom_to_list).
@@ -48,7 +55,19 @@ suite() ->
[{timetrap, {seconds, 10}}].
all() ->
- [base, gen, lib, unknown].
+ [base, gen, lib, unknown, {group, recode}].
+
+groups() ->
+ [{recode, [], [success,
+ grouped_error,
+ failed_error]}].
+
+init_per_group(recode, Config) ->
+ ok = diameter:start(),
+ Config.
+
+end_per_group(_, _) ->
+ ok = diameter:stop().
init_per_testcase(gen, Config) ->
[{application, ?APP, App}] = diameter_util:consult(?APP, app),
@@ -98,3 +117,166 @@ compile(File) ->
compile(File, Opts) ->
compile:file(File, [return | Opts]).
+
+%% ===========================================================================
+
+%% Ensure a Grouped AVP is represented by a list in the avps field.
+success(_) ->
+ Avps = [{295, <<1:32>>}, %% Termination-Cause
+ {284, [{280, "Proxy-Host"}, %% Proxy-Info
+ {33, "Proxy-State"}, %%
+ {295, <<2:32>>}]}], %% Termination-Cause
+ #diameter_packet{avps = [#diameter_avp{code = 295,
+ value = 1,
+ data = <<1:32>>},
+ [#diameter_avp{code = 284},
+ #diameter_avp{code = 280},
+ #diameter_avp{code = 33},
+ #diameter_avp{code = 295,
+ value = 2,
+ data = <<2:32>>}]],
+ errors = []}
+ = str(recode(str(Avps))).
+
+%% ===========================================================================
+
+%% Ensure a Grouped AVP is represented by a list in the avps field
+%% even in the case of a decode error on a component AVP.
+grouped_error(_) ->
+ Avps = [{295, <<1:32>>}, %% Termination-Cause
+ {284, [{295, <<0:32>>}, %% Proxy-Info, Termination-Cause
+ {280, "Proxy-Host"},
+ {33, "Proxy-State"}]}],
+ #diameter_packet{avps = [#diameter_avp{code = 295,
+ value = 1,
+ data = <<1:32>>},
+ [#diameter_avp{code = 284},
+ #diameter_avp{code = 295,
+ value = undefined,
+ data = <<0:32>>},
+ #diameter_avp{code = 280},
+ #diameter_avp{code = 33}]],
+ errors = [{5004, #diameter_avp{code = 284}}]}
+ = str(recode(str(Avps))).
+
+%% ===========================================================================
+
+%% Ensure that a failed decode in Failed-AVP is acceptable, and that
+%% the component AVPs are decoded if possible.
+failed_error(_) ->
+ Avps = [{279, [{295, <<0:32>>}, %% Failed-AVP, Termination-Cause
+ {258, <<1:32>>}, %% Auth-Application-Id
+ {284, [{280, "Proxy-Host"}, %% Proxy-Info
+ {33, "Proxy-State"},
+ {295, <<0:32>>}, %% Termination-Cause, invalid
+ {258, <<2:32>>}]}]}], %% Auth-Application-Id
+ #diameter_packet{avps = [[#diameter_avp{code = 279},
+ #diameter_avp{code = 295,
+ value = undefined,
+ data = <<0:32>>},
+ #diameter_avp{code = 258,
+ value = 1,
+ data = <<1:32>>},
+ [#diameter_avp{code = 284},
+ #diameter_avp{code = 280},
+ #diameter_avp{code = 33},
+ #diameter_avp{code = 295,
+ value = undefined},
+ #diameter_avp{code = 258,
+ value = 2,
+ data = <<2:32>>}]]],
+ errors = []}
+ = sta(recode(sta(Avps))).
+
+%% ===========================================================================
+
+%% str/1
+
+str(#diameter_packet{avps = [#diameter_avp{code = 263},
+ #diameter_avp{code = 264},
+ #diameter_avp{code = 296},
+ #diameter_avp{code = 283},
+ #diameter_avp{code = 258,
+ value = 0}
+ | T]}
+ = Pkt) ->
+ Pkt#diameter_packet{avps = T};
+
+str(Avps) ->
+ OH = "diameter.erlang.org",
+ OR = "erlang.org",
+ DR = "example.com",
+ Sid = "diameter.erlang.org;123;456",
+
+ [#diameter_header{version = 1,
+ cmd_code = 275, %% STR
+ is_request = true,
+ application_id = 0,
+ hop_by_hop_id = 17,
+ end_to_end_id = 42,
+ is_proxiable = false,
+ is_error = false,
+ is_retransmitted = false}
+ | avp([{263, Sid}, %% Session-Id
+ {264, OH}, %% Origin-Host
+ {296, OR}, %% Origin-Realm
+ {283, DR}, %% Destination-Realm
+ {258, <<0:32>>}] %% Auth-Application-Id
+ ++ Avps)].
+
+%% sta/1
+
+sta(#diameter_packet{avps = [#diameter_avp{code = 263},
+ #diameter_avp{code = 268},
+ #diameter_avp{code = 264},
+ #diameter_avp{code = 296},
+ #diameter_avp{code = 278,
+ value = 4}
+ | T]}
+ = Pkt) ->
+ Pkt#diameter_packet{avps = T};
+
+sta(Avps) ->
+ OH = "diameter.erlang.org",
+ OR = "erlang.org",
+ Sid = "diameter.erlang.org;123;456",
+
+ [#diameter_header{version = 1,
+ cmd_code = 275, %% STA
+ is_request = false,
+ application_id = 0,
+ hop_by_hop_id = 17,
+ end_to_end_id = 42,
+ is_proxiable = false,
+ is_error = false,
+ is_retransmitted = false}
+ | avp([{263, Sid}, %% Session-Id
+ {268, <<2002:32>>}, %% Result-Code
+ {264, OH}, %% Origin-Host
+ {296, OR}, %% Origin-Realm
+ {278, <<4:32>>}] %% Origin-State-Id
+ ++ Avps)].
+
+avp({Code, Data}) ->
+ #diameter_avp{code = Code,
+ data = avp(Data)};
+
+avp(#diameter_avp{} = A) ->
+ A;
+
+avp([{_,_} | _] = Avps) ->
+ lists:map(fun avp/1, Avps);
+
+avp(V) ->
+ V.
+
+%% recode/1
+
+recode(Msg) ->
+ recode(Msg, diameter_gen_base_rfc6733).
+
+recode(#diameter_packet{} = Pkt, Dict) ->
+ diameter_codec:decode(Dict, diameter_codec:encode(Dict, Pkt));
+
+recode(Msg, Dict) ->
+ recode(#diameter_packet{msg = Msg}, Dict).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-03 13:33:48 +0000