File: //usr/lib/erlang/lib/megaco-4.4/src/binary/megaco_binary_name_resolver_v1.erl
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2000-2019. 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.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%
%%----------------------------------------------------------------------
%% Purpose: Handle meta data about packages
%%----------------------------------------------------------------------
-module(megaco_binary_name_resolver_v1).
-include_lib("megaco/src/engine/megaco_message_internal.hrl").
-include_lib("megaco/src/app/megaco_internal.hrl").
-define(LOWER(Char),
if
Char >= $A, Char =< $Z ->
Char - ($A - $a);
true ->
Char
end).
-export([packages/0,
capabilities/0,
capabilities/1,
decode_name/3,
encode_name/3
]).
encode_name(Config, term_id, TermId) ->
case megaco:encode_binary_term_id(Config, TermId) of
{ok, TermId2} ->
TermId2;
{error, _Reason} ->
exit({bad_term_id, TermId})
end;
encode_name(_Config, Scope, Item) ->
?d("encode_name(~p) -> entry with"
"~n Item: ~p", [Scope, Item]),
encode(Scope, Item).
decode_name(Config, term_id, TermId) ->
case megaco:decode_binary_term_id(Config, TermId) of
{ok, TermId2} ->
TermId2;
{error, _Reason} ->
exit({bad_term_id, TermId})
end;
decode_name(_Config, Scope, Item) ->
?d("decode_name(~p) -> entry with"
"~n Item: ~p", [Scope, Item]),
decode(Scope, Item).
%%----------------------------------------------------------------------
%% 12.1.1 Package
%%
%% Overall description of the package, specifying:
%%
%% Package Name: only descriptive
%%
%% PackageID: is an identifier
%%
%% Description:
%%
%% Version:
%%
%% A new version of a package can only add additional Properties,
%% Events, Signals, Statistics and new possible values for an
%% existing parameter described in the original package. No
%% deletions or modifications shall be allowed. A version is an
%% integer in the range from 1 to 99.
%%
%% Designed to be extended only (Optional):
%%
%% This indicates that the package has been expressly designed to
%% be extended by others, not to be directly referenced. For
%% example, the package may not have any function on its own or be
%% nonsensical on its own. The MG SHOULD NOT publish this
%% PackageID when reporting packages.
%%
%% Extends (Optional): existing package Descriptor
%%
%% A package may extend an existing package. The version of the
%% original package must be specified. When a package extends
%% another package it shall only add additional Properties,
%% Events, Signals, Statistics and new possible values for an
%% existing parameter described in the original package. An
%% extended package shall not redefine or overload an identifier
%% defined in the original package and packages it may have
%% extended (multiple levels of extension). Hence, if package B
%% version 1 extends package A version 1, version 2 of B will not
%% be able to extend the A version 2 if A version 2 defines a name
%% already in B version 1.
%%
%%
%% 12.1.2 Properties
%%
%% Properties defined by the package, specifying:
%%
%% Property Name: only descriptive
%%
%% PropertyID: is an identifier
%%
%% Description:
%%
%% Type: One of:
%%
%% Boolean
%%
%% String: UTF-8 string
%%
%% Octet String: A number of octets. See Annex A and Annex B.3
%% for encoding
%%
%% Integer: 4 byte signed integer
%%
%% Double: 8 byte signed integer
%%
%% Character: unicode UTF-8 encoding of a single letter. Could be
%% more than one octet.
%%
%% Enumeration: one of a list of possible unique values (see 12.3)
%%
%% Sub-list: a list of several values from a list. The type of
%% sub-list SHALL also be specified. The type shall be chosen
%% from the types specified in this section (with the exception of
%% sub-list). For example, Type: sub-list of enumeration. The
%% encoding of sub-lists is specified in Annexes A and B.3.
%%
%% Possible values:
%%
%% A package MUST specify either a specific set of values or a
%% description of how values are determined. A package MUST also
%% specify a default value or the default behaviour when the value
%% is omitted from its descriptor. For example, a package may
%% specify that procedures related to the property are suspended
%% when its value is omitted. A default value (but not
%% procedures) may be specified as provisionable.
%%
%% Defined in:
%%
%% Which H.248.1 descriptor the property is defined in.
%% LocalControl is for stream dependent properties.
%% TerminationState is for stream independent properties. These
%% are expected to be the most common cases, but it is possible
%% for properties to be defined in other descriptors.
%%
%% Characteristics: Read/Write or both, and (optionally), global:
%%
%% Indicates whether a property is read-only, or read-write, and
%% if it is global. If Global is omitted, the property is not
%% global. If a property is declared as global, the value of the
%% property is shared by all Terminations realizing the package.
%%
%%
%% 12.1.3 Events
%%
%% Events defined by the package, specifying:
%%
%% Event name: only descriptive
%%
%% EventID: is an identifier
%%
%% Description:
%%
%% EventsDescriptor Parameters:
%%
%% Parameters used by the MGC to configure the event, and found in
%% the EventsDescriptor. See 12.2.
%%
%% ObservedEventsDescriptor Parameters:
%%
%% Parameters returned to the MGC in Notify requests and in
%% replies to command requests from the MGC that audit
%% ObservedEventsDescriptor, and found in the
%% ObservedEventsDescriptor. See 12.2.
%%
%%
%% 12.1.4 Signals
%%
%% Signals defined by the package, specifying:
%%
%% Signal Name: only descriptive
%%
%% SignalID: is an identifier. SignalID is used in a
%% SignalsDescriptor
%%
%% Description
%%
%% SignalType: one of:
%%
%% OO (On/Off)
%%
%% TO (TimeOut)
%%
%% BR (Brief)
%%
%% NOTE - SignalType may be defined such that it is dependent on the
%% value of one or more parameters. The package MUST specify a
%% default signal type. If the default type is TO, the package MUST
%% specify a default duration which may be provisioned. A default
%% duration is meaningless for BR.
%%
%% Duration: in hundredths of seconds
%%
%% Additional Parameters: see 12.2
%%
%%
%% 12.1.5 Statistics
%%
%% Statistics defined by the package, specifying:
%%
%% Statistic name: only descriptive
%%
%% StatisticID: is an identifier
%%
%% StatisticID is used in a StatisticsDescriptor
%%
%% Description:
%%
%% Units: unit of measure, e.g., milliseconds, packets
%%
%%
%% 12.1.6 Procedures
%%
%% Additional guidance on the use of the package.
%%
%%
%% 12.2 Guidelines to defining Parameters to Events and Signals
%%
%% Parameter Name: only descriptive
%%
%% ParameterID: is an identifier. The textual ParameterID of parameters
%% to Events and Signals shall not start with "EPA" and "SPA",
%% respectively. The textual ParameterID shall also not be "ST",
%% "Stream", "SY", "SignalType", "DR", "Duration", "NC",
%% "NotifyCompletion", "KA", "Keepactive", "EB", "Embed", "DM" or
%% "DigitMap".
%%
%% Type: One of:
%%
%% Boolean
%%
%% String: UTF-8 octet string
%% Octet String: A number of octets. See Annex A and Annex B.3 for
%% encoding
%%
%% Integer: 4-octet signed integer
%%
%% Double: 8-octet signed integer
%%
%% Character: unicode UTF-8 encoding of a single letter. Could be
%% more than one octet.
%%
%% Enumeration: one of a list of possible unique values (see 12.3)
%%
%% Sub-list: a list of several values from a list (not supported for
%% statistics). The type of sub-list SHALL also be specified. The
%% type shall be chosen from the types specified in this section
%% (with the exception of sub-list). For example, Type: sub-list of
%% enumeration. The encoding of sub-lists is specified in Annexes A
%% and B.3.
%%
%% Possible values:
%%
%% A package MUST specify either a specific set of values or a
%% description of how values are determined. A package MUST also
%% specify a default value or the default behavior when the value is
%% omitted from its descriptor. For example, a package may specify
%% that procedures related to the parameter are suspended when it
%% value is omitted. A default value (but not procedures) may be
%% specified as provisionable.
%%
%% Description:
%%
%%
%% 12.3 Lists
%%
%% Possible values for parameters include enumerations. Enumerations
%% may be defined in a list. It is recommended that the list be IANA
%% registered so that packages that extend the list can be defined
%% without concern for conflicting names.
%%
%%
%% 12.4 Identifiers
%%
%% Identifiers in text encoding shall be strings of up to 64 characters,
%% containing no spaces, starting with an alphabetic character and
%% consisting of alphanumeric characters and/or digits, and possibly
%% including the special character underscore ("_").
%%
%% Identifiers in binary encoding are 2 octets long.
%%
%% Both text and binary values shall be specified for each identifier,
%% including identifiers used as values in enumerated types.
%%
%%
%% 12.5 Package registration
%%
%% A package can be registered with IANA for interoperability reasons.
%% See clause 13 for IANA Considerations.
%%
%%----------------------------------------------------------------------
capabilities() ->
[{P, capabilities(P)} || P <- packages()].
%% -record(property, {name, type, values, defined_in, characteristics}).
%%----------------------------------------------------------------------
%% List all known packages
%% 'native' and 'all' are not real packages
%%----------------------------------------------------------------------
packages() ->
[
"g", % Generic
"root", % Base Root Package
"tonegen", % Tone Generator Package
"tonedet", % Tone Detection Package
"dg", % Basic DTMF Generator Package
"dd", % DTMF detection Package
"cg", % Call Progress Tones Generator Package
"cd", % Call Progress Tones Detection Package
"al", % Analog Line Supervision Package
"ct", % Basic Continuity Package
"nt", % Network Package
"rtp", % RTP Package
"swb", % SwitchBoard Package
"tdmc", % TDM Circuit Package
"" % Native pseudo package
].
%%----------------------------------------------------------------------
%% List all matching capabilities
%%----------------------------------------------------------------------
capabilities(Package) ->
case Package of
"g" -> capabilities_g();
"root" -> capabilities_root();
"tonegen" -> capabilities_tonegen();
"tonedet" -> capabilities_tonedet();
"dg" -> capabilities_dg();
"dd" -> capabilities_dd();
"cg" -> capabilities_cg();
"cd" -> capabilities_cd();
"al" -> capabilities_al();
"ct" -> capabilities_ct();
"nt" -> capabilities_nt();
"rtp" -> capabilities_rtp();
"swb" -> capabilities_swb();
"tdmc" -> capabilities_tdmc();
"" -> capabilities_native()
end.
%%----------------------------------------------------------------------
%% Decode package name to internal form
%% Scope ::= property | event | signal | statistics
%%----------------------------------------------------------------------
decode(mid, Package) ->
decode_mid(Package);
decode(package, Package) ->
decode_package(Package);
decode(profile, Package) ->
decode_profile(Package);
decode(dialplan, Dialplan) ->
decode_dialplan(Dialplan);
decode(Scope, [A, B | Item]) when is_atom(Scope) ->
?d("decode(~p) -> entry with"
"~n A: ~p"
"~n B: ~p"
"~n Item: ~p", [Scope, A, B, Item]),
case decode_package([A, B]) of
"" ->
?d("decode -> \"no\" package",[]),
decode_item(Scope, [A, B], Item);
Package ->
?d("decode -> Package: ~p", [Package]),
Package ++ "/" ++ decode_item(Scope, [A, B], Item)
end;
decode({Scope, [A, B | Item]}, SubItem) when is_atom(Scope) ->
?d("decode(~p) -> entry with"
"~n A: ~p"
"~n B: ~p"
"~n Item: ~p"
"~n SubItem: ~p", [Scope, A, B, Item, SubItem]),
decode_item({Scope, Item}, [A, B], SubItem).
decode_item(Scope, [A, B], Item) ->
?d("decode_item -> entry",[]),
case A of
16#00 ->
case B of
16#01 -> decode_g(Scope, Item);
16#02 -> decode_root(Scope, Item);
16#03 -> decode_tonegen(Scope, Item);
16#04 -> decode_tonedet(Scope, Item);
16#05 -> decode_dg(Scope, Item);
16#06 -> decode_dd(Scope, Item);
16#07 -> decode_cg(Scope, Item);
16#08 -> decode_cd(Scope, Item);
16#09 -> decode_al(Scope, Item);
16#0a -> decode_ct(Scope, Item);
16#0b -> decode_nt(Scope, Item);
16#0c -> decode_rtp(Scope, Item);
16#0d -> decode_tdmc(Scope, Item);
16#00 -> decode_native(Scope, Item)
end;
16#fe ->
case B of
%% Proprietary extension
16#fe -> decode_swb(Scope, Item)
end;
16#ff ->
case B of
16#ff when Item =:= [16#ff, 16#ff] -> "*"
end
end.
decode_package(Package) ->
?d("decode_package -> entry with"
"~n Package: ~p", [Package]),
[A, B] = Package,
case A of
16#00 ->
case B of
16#01 -> "g";
16#02 -> "root";
16#03 -> "tonegen";
16#04 -> "tonedet";
16#05 -> "dg";
16#06 -> "dd";
16#07 -> "cg";
16#08 -> "cd";
16#09 -> "al";
16#0a -> "ct";
16#0b -> "nt";
16#0c -> "rtp";
16#0d -> "tdmc";
16#00 -> ""
end;
16#fe ->
case B of
16#fe -> "swb"
end;
16#ff ->
case B of
16#ff -> "*"
end
end.
decode_profile([A, B]) ->
case A of
16#00 ->
case B of
16#fe -> "resgw";
_ -> "profile" ++ [A + $0, B + $0]
end;
_ ->
"profile" ++ [A + $0, B + $0]
end.
decode_dialplan([A, B]) ->
"dialplan" ++ [A + $0, B + $0].
decode_mid(Mid) ->
case Mid of
{domainName, DN} ->
Lower = to_lower(DN#'DomainName'.name),
{domainName, DN#'DomainName'{name = Lower}};
{deviceName, PathName} ->
Lower = to_lower(PathName),
{deviceName, Lower};
Other ->
Other
end.
to_lower(Chars) ->
[?LOWER(Char) || Char <- Chars].
%%----------------------------------------------------------------------
%% Encode package name from internal form
%% Scope ::= property | event | signal | statistics
%%----------------------------------------------------------------------
encode(mid, Package) ->
encode_mid(Package);
encode(package, Package) ->
encode_package(Package);
encode(profile, Profile) ->
encode_profile(Profile);
encode(dialplan, Dialplan) ->
encode_dialplan(Dialplan);
encode(Scope, PackageItem) when is_atom(Scope) ->
?d("encode(~p) -> entry with"
"~n PackageItem: ~p", [Scope, PackageItem]),
case string:tokens(PackageItem, [$/]) of
[Package, Item] ->
?d("encode -> "
"~n Package: ~p"
"~n Item: ~p", [Package, Item]),
encode_package(Package) ++ encode_item(Scope, Package, Item);
[Item] ->
?d("encode -> Item: ~p", [Item]),
[16#00, 16#00 | encode_native(Scope, Item)]
end;
encode({Scope, PackageItem}, SubItem) when is_atom(Scope) ->
?d("encode(~p) -> entry with"
"~n PackageItem: ~p"
"~n SubItem: ~p", [Scope, PackageItem, SubItem]),
case string:tokens(PackageItem, [$/]) of
[Package, Item] ->
?d("encode -> "
"~n Package: ~p"
"~n Item: ~p", [Package, Item]),
encode_item({Scope, Item}, Package, SubItem);
[_Item] ->
?d("encode -> _Item: ~p", [_Item]),
encode_native(Scope, SubItem)
end.
encode_item(_Scope, _Package, "*") ->
[16#ff, 16#ff];
encode_item(Scope, Package, Item) ->
?d("encode_item(~s) -> entry", [Package]),
case Package of
"g" -> encode_g(Scope, Item);
"root" -> encode_root(Scope, Item);
"tonegen" -> encode_tonegen(Scope, Item);
"tonedet" -> encode_tonedet(Scope, Item);
"dg" -> encode_dg(Scope, Item);
"dd" -> encode_dd(Scope, Item);
"cg" -> encode_cg(Scope, Item);
"cd" -> encode_cd(Scope, Item);
"al" -> encode_al(Scope, Item);
"ct" -> encode_ct(Scope, Item);
"nt" -> encode_nt(Scope, Item);
"rtp" -> encode_rtp(Scope, Item);
"tdmc" -> encode_tdmc(Scope, Item);
"swb" -> encode_swb(Scope, Item)
end.
encode_package(Package) ->
case Package of
"g" -> [16#00, 16#01];
"root" -> [16#00, 16#02];
"tonegen" -> [16#00, 16#03];
"tonedet" -> [16#00, 16#04];
"dg" -> [16#00, 16#05];
"dd" -> [16#00, 16#06];
"cg" -> [16#00, 16#07];
"cd" -> [16#00, 16#08];
"al" -> [16#00, 16#09];
"ct" -> [16#00, 16#0a];
"nt" -> [16#00, 16#0b];
"rtp" -> [16#00, 16#0c];
"tdmc" -> [16#00, 16#0d];
"" -> [16#00, 16#00];
"*" -> [16#ff, 16#ff];
"swb" -> [16#fe, 16#fe]
end.
encode_profile(Profile) ->
case Profile of
"resgw" ->
[16#00, 16#fe];
[$p, $r, $o, $f, $i, $l, $e | Name] ->
case Name of
[A, B] -> [A - $0, B - $0];
[B] -> [0, B - $0];
[] -> [0, 0]
end
end.
encode_dialplan(Dialplan) ->
case Dialplan of
[$d, $i, $a, $l, $p, $l, $a, $n | Name] ->
case Name of
[A, B] -> [A - $0, B - $0];
[B] -> [0, B - $0];
[] -> [0, 0]
end
end.
encode_mid(Mid) ->
Mid.
%%----------------------------------------------------------------------
%% Name: g - Generic
%% Version: 1
%% Extends: None
%% Purpose: Generic package for commonly encountered items
%%----------------------------------------------------------------------
capabilities_g() ->
[
{event, "cause"},
{event, "sc"}
].
encode_g(event, Item) ->
case Item of
"cause" -> [16#00, 16#01];
"sc" -> [16#00, 16#02]
end;
encode_g({event_parameter, Item}, SubItem) ->
case Item of
"cause" ->
case SubItem of
"Generalcause" -> [16#00, 16#01];
"Failurecause" -> [16#00, 16#02]
end;
"sc" ->
case SubItem of
"SigID" -> [16#00, 16#01];
"Meth" -> [16#00, 16#02];
"SLID" -> [16#00, 16#03]
end
end.
decode_g(event, Item) ->
case Item of
[16#00, 16#01] -> "cause";
[16#00, 16#02] -> "sc"
end;
decode_g({event_parameter, Item}, SubItem) ->
case Item of
[16#00, 16#01] -> % Event: cause
case SubItem of
[16#00, 16#01] -> "Generalcause";
[16#00, 16#02] -> "Failurecause"
end;
[16#00, 16#02] -> % Event: sc
case SubItem of
[16#00, 16#01] -> "SigID";
[16#00, 16#02] -> "Meth";
[16#00, 16#03] -> "SLID"
end
end.
%%----------------------------------------------------------------------
%% Name: root - Base Root Package
%% Version: 1
%% Extends: None
%% Purpose: This package defines Gateway wide properties.
%%----------------------------------------------------------------------
capabilities_root() ->
[
{property, "maxNumberOfContexts"},
{property, "maxTerminationsPerContext"},
{property, "normalMGExecutionTime"},
{property, "normalMGCExecutionTime"},
{property, "MGProvisionalResponseTimerValue"},
{property, "MGCProvisionalResponseTimerValue"}
].
encode_root(Scope, Item) ->
case Scope of
property ->
case Item of
"maxNumberOfContexts" -> [16#00, 16#01];
"maxTerminationsPerContext" -> [16#00, 16#02];
"normalMGExecutionTime" -> [16#00, 16#03];
"normalMGCExecutionTime" -> [16#00, 16#04];
"MGProvisionalResponseTimerValue" -> [16#00, 16#05];
"MGCProvisionalResponseTimerValue" -> [16#00, 16#06]
end
end.
decode_root(Scope, Item) ->
case Scope of
property ->
case Item of
[16#00, 16#01] -> "maxNumberOfContexts";
[16#00, 16#02] -> "maxTerminationsPerContext";
[16#00, 16#03] -> "normalMGExecutionTime";
[16#00, 16#04] -> "normalMGCExecutionTime";
[16#00, 16#05] -> "MGProvisionalResponseTimerValue";
[16#00, 16#06] -> "MGCProvisionalResponseTimerValue"
end
end.
%%----------------------------------------------------------------------
%% Name: tonegen - Tone Generator Package
%% Version: 1
%% Extends: None
%% Purpose: This package defines signals to generate audio tones.
%% This package does not specify parameter values. It is
%% intended to be extendable. Generally, tones are defined
%% as an individual signal with a parameter, ind,
%% representing "interdigit" time delay, and a tone id to
%% be used with playtones. A tone id should be kept
%% consistent with any tone generation for the same tone.
%% MGs are expected to be provisioned with the characteristics
%% of appropriate tones for the country in which the MG is located.
%%----------------------------------------------------------------------
capabilities_tonegen() ->
[
{signal, "pt"}
].
encode_tonegen(signal, Item) ->
case Item of
"pt" -> [16#00, 16#01]
end;
encode_tonegen({signal_parameter, Item}, SubItem) ->
case Item of
"pt" ->
case SubItem of
"tl" -> [16#00, 16#01];
"ind" -> [16#00, 16#02]
end
end.
decode_tonegen(signal, Item) ->
case Item of
[16#00, 16#01] -> "pt"
end;
decode_tonegen({signal_parameter, Item}, SubItem) ->
case Item of
[16#00, 16#01] -> % Event: pt
case SubItem of
[16#00, 16#01] -> "tl";
[16#00, 16#02] -> "ind"
end
end.
%%----------------------------------------------------------------------
%% Name: tonedet - Tone Detection Package
%% Version: 1
%% Extends: None
%% Purpose: This Package defines events for audio tone detection.
%% Tones are selected by name (tone id). MGs are expected
%% to be provisioned with the characteristics of appropriate
%% tones for the country in which the MG is located.
%%
%% This package does not specify parameter values.
%% It is intended to be extendable.
%%----------------------------------------------------------------------
capabilities_tonedet() ->
[
{event, "std"},
{event, "etd"},
{event, "ltd"}
].
encode_tonedet(event, Item) ->
case Item of
"std" -> [16#00, 16#01];
"etd" -> [16#00, 16#02];
"ltd" -> [16#00, 16#03]
end;
encode_tonedet({event_parameter, Item}, SubItem) ->
case Item of
"std" ->
case SubItem of
"tl" -> [16#00, 16#01];
"tid" -> [16#00, 16#03]
end;
"etd" ->
case SubItem of
"tl" -> [16#00, 16#01];
"tid" -> [16#00, 16#03];
"dur" -> [16#00, 16#02]
end;
"ltd" ->
case SubItem of
"tl" -> [16#00, 16#01];
"dur" -> [16#00, 16#02];
"tid" -> [16#00, 16#03]
end
end.
decode_tonedet(event, Item) ->
case Item of
[16#00, 16#01] -> "std";
[16#00, 16#02] -> "etd";
[16#00, 16#03] -> "ltd"
end;
decode_tonedet({event_parameter, Item}, SubItem) ->
case Item of
[16#00, 16#01] -> % Event std
case SubItem of
[16#00, 16#01] -> "tl";
[16#00, 16#03] -> "tid"
end;
[16#00, 16#02] -> % Event etd
case SubItem of
[16#00, 16#01] -> "tl";
[16#00, 16#03] -> "tid";
[16#00, 16#02] -> "dur"
end;
[16#00, 16#03] -> % Event ltd
case SubItem of
[16#00, 16#01] -> "tl";
[16#00, 16#02] -> "dur";
[16#00, 16#03] -> "tid"
end
end.
%%----------------------------------------------------------------------
%% Name: dg - Basic DTMF Generator Package
%% Version: 1
%% Extends: tonegen version 1
%% Purpose: This package defines the basic DTMF tones as signals and
%% extends the allowed values of parameter tl of playtone
%% in tonegen.
%%----------------------------------------------------------------------
capabilities_dg() ->
[
{signal, "d0"},
{signal, "d1"},
{signal, "d2"},
{signal, "d3"},
{signal, "d4"},
{signal, "d5"},
{signal, "d6"},
{signal, "d7"},
{signal, "d8"},
{signal, "d9"},
{signal, "ds"},
{signal, "do"},
{signal, "da"},
{signal, "db"},
{signal, "dc"},
{signal, "dd"}
].
encode_dg(Scope, Item) ->
case Scope of
signal ->
case Item of
"d0" -> [16#00, 16#10];
"d1" -> [16#00, 16#11];
"d2" -> [16#00, 16#12];
"d3" -> [16#00, 16#13];
"d4" -> [16#00, 16#14];
"d5" -> [16#00, 16#15];
"d6" -> [16#00, 16#16];
"d7" -> [16#00, 16#17];
"d8" -> [16#00, 16#18];
"d9" -> [16#00, 16#19];
"ds" -> [16#00, 16#20];
"do" -> [16#00, 16#21];
"da" -> [16#00, 16#1a];
"db" -> [16#00, 16#1b];
"dc" -> [16#00, 16#1c];
"dd" -> [16#00, 16#1d]
end
end.
decode_dg(Scope, Item) ->
case Scope of
signal ->
case Item of
[16#00, 16#10] -> "d0";
[16#00, 16#11] -> "d1";
[16#00, 16#12] -> "d2";
[16#00, 16#13] -> "d3";
[16#00, 16#14] -> "d4";
[16#00, 16#15] -> "d5";
[16#00, 16#16] -> "d6";
[16#00, 16#17] -> "d7";
[16#00, 16#18] -> "d8";
[16#00, 16#19] -> "d9";
[16#00, 16#20] -> "ds";
[16#00, 16#21] -> "do";
[16#00, 16#1a] -> "da";
[16#00, 16#1b] -> "db";
[16#00, 16#1c] -> "dc";
[16#00, 16#1d] -> "dd"
end
end.
%%----------------------------------------------------------------------
%% Name: dd - DTMF detection Package
%% Version: 1
%% Extends: tonedet version 1
%% Purpose: This package defines the basic DTMF tones detection.
%% Tones are selected by name (tone id). MGs are expected
%% to be provisioned with the characteristics of appropriate
%% tones for the country in which the MG is located.
%%
%% This package does not specify parameter values.
%% It is intended to be extendable.
%%
%% Additional tone id values are all tone ids described in package dg
%% (basic DTMF generator package).
%%
%% The following table maps DTMF events to digit map symbols as described
%% in section 7.1.14.
%%
%% _________________________________
%% | DTMF Event | Symbol |
%% | d0 | "0" |
%% | d1 | "1" |
%% | d2 | "2" |
%% | d3 | "3" |
%% | d4 | "4" |
%% | d5 | "5" |
%% | d6 | "6" |
%% | d7 | "7" |
%% | d8 | "8" |
%% | d9 | "9" |
%% | da | "A" or "a"|
%% | db | "B" or "b"|
%% | dc | "C" or "c"|
%% | dd | "D" or "d"|
%% | ds | "E" or "e"|
%% | do | "F" or "f"|
%% |___________________|____________|
%%
%%----------------------------------------------------------------------
capabilities_dd() ->
[
{event, "ce"}
].
encode_dd(event, Item) ->
case Item of
"ce" -> [16#00, 16#04]
end;
encode_dd({event_parameter, Item}, SubItem) ->
case Item of
"ce" ->
case SubItem of
"ds" -> [16#00, 16#01];
"Meth" -> [16#00, 16#03]
end
end.
decode_dd(event, Item) ->
case Item of
[16#00, 16#04] -> "ce"
end;
decode_dd({event_parameter, Item}, SubItem) ->
case Item of
[16#00, 16#04] -> % Event ce
case SubItem of
[16#00, 16#01] -> "ds";
[16#00, 16#03] -> "Meth"
end
end.
%%----------------------------------------------------------------------
%% Name: cg - Call Progress Tones Generator Package
%% Version: 1
%% Extends: tonegen version 1
%% Purpose: This package defines the basic call progress tones as signals
%% and extends the allowed values of the tl parameter of
%% playtone in tonegen.
%%----------------------------------------------------------------------
capabilities_cg() ->
[
{signal, "dt"},
{signal, "rt"},
{signal, "bt"},
{signal, "ct"},
{signal, "sit"},
{signal, "wt"},
{signal, "prt"},
{signal, "cw"},
{signal, "cr"}
].
encode_cg(Scope, Item) ->
case Scope of
signal ->
case Item of
"dt" -> [16#00, 16#30];
"rt" -> [16#00, 16#31];
"bt" -> [16#00, 16#32];
"ct" -> [16#00, 16#33];
"sit" -> [16#00, 16#34];
"wt" -> [16#00, 16#35];
"prt" -> [16#00, 16#36];
"cw" -> [16#00, 16#37];
"cr" -> [16#00, 16#38]
end
end.
decode_cg(Scope, Item) ->
case Scope of
signal ->
case Item of
[16#00, 16#30] -> "dt";
[16#00, 16#31] -> "rt";
[16#00, 16#32] -> "bt";
[16#00, 16#33] -> "ct";
[16#00, 16#34] -> "sit";
[16#00, 16#35] -> "wt";
[16#00, 16#36] -> "prt";
[16#00, 16#37] -> "cw";
[16#00, 16#38] -> "cr"
end
end.
%%----------------------------------------------------------------------
%% Name: cd - Call Progress Tones Detection Package
%% Version: 1
%% Extends: tonedet version 1
%% Purpose: This package defines the basic call progress detection tones.
%% This Package extends the possible values of tone id
%% in the "start tone detected", "end tone detected" and
%% "long tone detected" events.
%% Additional values
%% tone id values are defined for start tone detected,
%% end tone detected and long tone detected with
%% the same values as those in package cg (call
%% progress tones generation package).
%%
%% The required set of tone ids corresponds to Recommendation E.180/Q.35
%% [ITU-T Recommendation E.180/Q.35 (1998)]. See Recommendation E.180/Q.35
%% for definition of the meanings of these tones.
%%----------------------------------------------------------------------
capabilities_cd() ->
[
{event, "dt"},
{event, "rt"},
{event, "bt"},
{event, "ct"},
{event, "sit"},
{event, "wt"},
{event, "prt"},
{event, "cw"},
{event, "cr"}
].
encode_cd(Scope, Item) ->
case Scope of
event ->
case Item of
"dt" -> [16#00, 16#30];
"rt" -> [16#00, 16#31];
"bt" -> [16#00, 16#32];
"ct" -> [16#00, 16#33];
"sit"-> [16#00, 16#34];
"wt" -> [16#00, 16#35];
"prt"-> [16#00, 16#36];
"cw" -> [16#00, 16#37];
"cr" -> [16#00, 16#38]
end
end.
decode_cd(Scope, Item) ->
case Scope of
event ->
case Item of
[16#00, 16#30] -> "dt";
[16#00, 16#31] -> "rt";
[16#00, 16#32] -> "bt";
[16#00, 16#33] -> "ct";
[16#00, 16#34] -> "sit";
[16#00, 16#35] -> "wt";
[16#00, 16#36] -> "prt";
[16#00, 16#37] -> "cw";
[16#00, 16#38] -> "cr"
end
end.
%%----------------------------------------------------------------------
%% Name: al - Analog Line Supervision Package
%% Version: 1
%% Extends: None
%% Purpose: This package defines events and signals for an analog line.
%%----------------------------------------------------------------------
capabilities_al() ->
[
{event, "on"},
{event, "of"},
{event, "fl"},
{signal, "ri"}
].
encode_al(event, Item) ->
?d("encode_al(event) -> entry with"
"~n Item: ~p", [Item]),
case Item of
"on" -> [16#00, 16#04];
"of" -> [16#00, 16#05];
"fl" -> [16#00, 16#06]
end;
encode_al({event_parameter, Item}, SubItem) ->
?d("encode_al({event_parameter,~p}) -> entry with"
"~n SubItem: ~p", [Item, SubItem]),
case Item of
"on" ->
case SubItem of
"strict" -> [16#00, 16#01];
"init" -> [16#00, 16#02]
end;
"of" ->
case SubItem of
"strict" -> [16#00, 16#01];
"init" -> [16#00, 16#02]
end;
"fl" ->
case SubItem of
"mindur" -> [16#00, 16#04];
"maxdur" -> [16#00, 16#05]
end
end;
encode_al(signal, Item) ->
?d("encode_al(signal) -> entry with"
"~n Item: ~p", [Item]),
case Item of
"ri" -> [16#00, 16#02]
end;
encode_al({signal_parameter, Item}, SubItem) ->
?d("encode_al({signal_parameter,~p}) -> entry with"
"~n SubItem: ~p", [Item, SubItem]),
case Item of
"ri" ->
case SubItem of
"cad" -> [16#00, 16#06];
"freq" -> [16#00, 16#07]
end
end.
decode_al(event, SubItem) ->
?d("decode_al(event) -> entry with"
"~n SubItem: ~p", [SubItem]),
case SubItem of
[16#00, 16#04] -> "on";
[16#00, 16#05] -> "of";
[16#00, 16#06] -> "fl"
end;
decode_al({event_parameter, Item}, SubItem) ->
?d("decode_al({event_parameter,~p}) -> entry with"
"~n SubItem: ~p", [Item, SubItem]),
case Item of
[16#00,16#04] -> %% Event: on
case SubItem of
[16#00, 16#01] -> "strict";
[16#00, 16#02] -> "init"
end;
[16#00,16#05] -> %% Event: of
case SubItem of
[16#00, 16#01] -> "strict";
[16#00, 16#02] -> "init"
end;
[16#00,16#06] -> %% Event: fl
case SubItem of
[16#00, 16#04] -> "mindur";
[16#00, 16#05] -> "maxdur"
end
end;
decode_al(signal, SubItem) ->
?d("decode_al(signal) -> entry with"
"~n SubItem: ~p", [SubItem]),
case SubItem of
[16#00, 16#02] -> "ri"
end;
decode_al({signal_parameter, Item}, SubItem) ->
?d("decode_al({signal_parameter,~p}) -> entry with"
"~n SubItem: ~p", [Item, SubItem]),
case Item of
[16#00,16#02] -> %% Event: ri
case SubItem of
[16#00, 16#06] -> "cad";
[16#00, 16#07] -> "freq"
end
end.
%%----------------------------------------------------------------------
%% Name: ct - Basic Continuity Package
%% Version: 1
%% Extends: None
%% Purpose: This package defines events and signals for continuity test.
%% The continuity test includes provision of either a loopback
%% or transceiver functionality.
%%----------------------------------------------------------------------
capabilities_ct() ->
[
{event, "cmp"},
{signal, "ct"},
{signal, "rsp"}
].
encode_ct(event, Item) ->
case Item of
"cmp" -> [16#00, 16#05]
end;
encode_ct({event_parameter, Item}, SubItem) ->
case Item of
"cmp" ->
case SubItem of
"res" -> [16#00, 16#08]
end
end;
encode_ct(signal, Item) ->
case Item of
"ct" -> [16#00, 16#03];
"rsp" -> [16#00, 16#04]
end.
decode_ct(event, Item) ->
case Item of
[16#00, 16#05] -> "cmp"
end;
decode_ct({event_parameter, Item}, SubItem) ->
case Item of
[16#00, 16#05] -> % Event cmp
case SubItem of
[16#00, 16#08] -> "res"
end
end;
decode_ct(signal, Item) ->
case Item of
[16#00, 16#03] -> "ct";
[16#00, 16#04] -> "rsp"
end.
%%----------------------------------------------------------------------
%% Name: nt - Network Package
%% Version: 1
%% Extends: None
%% Purpose: This package defines properties of network terminations
%% independent of network type.
%%----------------------------------------------------------------------
capabilities_nt() ->
[
{property, "jit"},
{event, "netfail"},
{event, "qualert"},
{statistics, "dur"},
{statistics, "os"},
{statistics, "or"}
].
encode_nt(property, Item) ->
case Item of
"jit" -> [16#00, 16#07]
end;
encode_nt(event, Item) ->
case Item of
"netfail" -> [16#00, 16#05];
"qualert" -> [16#00, 16#06]
end;
encode_nt({event_parameter, Item}, SubItem) ->
case Item of
"netfail" ->
case SubItem of
"cs" -> [16#00, 16#01]
end;
"qualert" ->
case SubItem of
"th" -> [16#00, 16#01]
end
end;
encode_nt(statistics, Item) ->
case Item of
"dur" -> [16#00, 16#01];
"os" -> [16#00, 16#02];
"or" -> [16#00, 16#03]
end.
decode_nt(property, Item) ->
case Item of
[16#00, 16#07] -> "jit"
end;
decode_nt(event, Item) ->
case Item of
[16#00, 16#05] -> "netfail";
[16#00, 16#06] -> "qualert"
end;
decode_nt({event_parameter, Item}, SubItem) ->
case Item of
[16#00, 16#05] -> % Event netfail
case SubItem of
[16#00, 16#01] -> "cs"
end;
[16#00, 16#06] -> % Event qualert
case SubItem of
[16#00, 16#01] -> "th"
end
end;
decode_nt(statistics, Item) ->
case Item of
[16#00, 16#01] -> "dur";
[16#00, 16#02] -> "os";
[16#00, 16#03] -> "or"
end.
%%----------------------------------------------------------------------
%% Name: rtp - RTP Package
%% Version: 1
%% Extends: nt version 1
%% Purpose: This package is used to support packet based multimedia
%% data transfer by means of the Real-time Transport Protocol
%% (RTP) [RFC 1889].
%%----------------------------------------------------------------------
capabilities_rtp() ->
[
{event, "pltrans"},
{statistics, "ps"},
{statistics, "pr"},
{statistics, "pl"},
{statistics, "jit"},
{statistics, "delay"}
].
encode_rtp(event, Item) ->
case Item of
"pltrans" -> [16#00, 16#01]
end;
encode_rtp({event_parameter, Item}, SubItem) ->
case Item of
"pltrans" ->
case SubItem of
"rtppltype" -> [16#00, 16#01]
end
end;
encode_rtp(statistics, Item) ->
case Item of
"ps" -> [16#00, 16#04];
"pr" -> [16#00, 16#05];
"pl" -> [16#00, 16#06];
"jit" -> [16#00, 16#07];
"delay" -> [16#00, 16#08]
end.
decode_rtp(event, Item) ->
case Item of
[16#00, 16#01] -> "pltrans"
end;
decode_rtp({event_parameter, Item}, SubItem) ->
case Item of
[16#00, 16#01] -> % Event pltrans
case SubItem of
[16#00, 16#01] -> "rtppltype"
end
end;
decode_rtp(statistics, Item) ->
case Item of
[16#00, 16#04] -> "ps";
[16#00, 16#05] -> "pr";
[16#00, 16#06] -> "pl";
[16#00, 16#07] -> "jit";
[16#00, 16#08] -> "delay"
end.
%%----------------------------------------------------------------------
%% Name: tdmc - TDM Circuit Package
%% Version: 1
%% Extends: nt version 1
%% Purpose: This package is used to support TDM circuit terminations.
%%----------------------------------------------------------------------
capabilities_tdmc() ->
[
{property, "ec"},
{property, "gain"}
].
encode_tdmc(Scope, Item) ->
case Scope of
property ->
case Item of
"ec" -> [16#00, 16#08];
"gain" -> [16#00, 16#0a]
end
end.
decode_tdmc(Scope, Item) ->
case Scope of
property ->
case Item of
[16#00, 16#08] -> "ec";
[16#00, 16#0a] -> "gain"
end
end.
%%----------------------------------------------------------------------
%% Name: swb - SwitchBoard Package
%% Version: 1
%% Extends: none
%% Purpose: This package is used to support SwitchBoard specials
%%----------------------------------------------------------------------
capabilities_swb() ->
[
{statistics, "fs"}, % Free slots
{statistics, "as"} % Allocated slots
].
encode_swb(Scope, Item) ->
case Scope of
statistics ->
case Item of
"fs" -> [16#00, 16#00];
"as" -> [16#00, 16#01]
end
end.
decode_swb(Scope, Item) ->
case Scope of
statistics ->
case Item of
[16#00, 16#00] -> "fs";
[16#00, 16#01] -> "as"
end
end.
%%----------------------------------------------------------------------
%% Name: native - Pseudo package
%% Version: 1
%% Extends: None
%% Purpose: Native tags for media stream properties
%%
%% Parameters for Local descriptors and Remote descriptors are
%% specified as tag-value pairs if binary encoding is used for the
%% protocol. This annex contains the property names (PropertyID), the
%% tags (Property Tag), type of the property (Type) and the values
%% (Value).Values presented in the Value field when the field contains
%% references shall be regarded as "information". The reference
%% contains the normative values. If a value field does not contain a
%% reference then the values in that field can be considered as
%% "normative".
%%
%% Tags are given as hexadecimal numbers in this annex. When setting
%% the value of a property, a MGC may underspecify the value according
%% to one of the mechanisms specified in section 7.1.1.
%%
%% For type "enumeration" the value is represented by the value in brack-
%% ets, e.g., Send(0), Receive(1).
%%----------------------------------------------------------------------
%%
%% C.6. IP
%%
%% ________________________________________________________________
%% | PropertyID| Tag | Type | Value |
%% | IPv4 | 6001 | 32 BITS | Ipv4Address |
%% | IPv6 | 6002 | 128 BITS | IPv6 Address |
%% | Port | 6003 | Unsigned Int| Port |
%% | Porttype | 6004 | Enumerated | TCP(0),UDP(1),SCTP(2)|
%% |___________|____________|______________|_______________________|
%%
%%
%% C.11. SDP Equivalents
%%
%% ______________________________________________________________
%% | PropertyID| Tag | Type | Value |
%% | SDP_V | B001| STRING| Protocol Version |
%% | SDP_O | B002| STRING| Owner-creator and session ID |
%% | SDP_S | B003| STRING| Sesson name |
%% | SDP_I | B004| STRING| Session identifier |
%% | SDP_U | B005| STRING| URI of descriptor |
%% | SDC_E | B006| STRING| email address |
%% | SDP_P | B007| STRING| phone number |
%% | SDP_C | B008| STRING| Connection information |
%% | SDP_B | B009| STRING| Bandwidth Information |
%% | SDP_Z | B00A| STRING| time zone adjustment |
%% | SDP_K | B00B| STRING| Encryption Key |
%% | SDP_A | B00C| STRING| Zero or more session attributes|
%% | SDP_T | B00D| STRING| Active Session Time |
%% | SDP_R | B00E| STRING| Zero or more repeat times |
%% | SDP_M | B00F| STRING| Media name and transport addr |
%% | | | | Reference: IETF RFC 2327 |
%% |___________|______|________|_________________________________|
%%
%%----------------------------------------------------------------------
capabilities_native() ->
[
%% C.6. IP
{property, "IPv4"},
{property, "IPv6"},
{property, "Port"},
{property, "Porttype"},
%% C.11. SDP Equivalents
{property, "v"},
{property, "o"},
{property, "s"},
{property, "i"},
{property, "u"},
{property, "e"},
{property, "p"},
{property, "c"},
{property, "b"},
{property, "z"},
{property, "k"},
{property, "a"},
{property, "t"},
{property, "r"},
{property, "m"}
].
encode_native(Scope, Item) ->
case Scope of
property ->
case Item of
%% IP
"IPv4" -> [16#60, 16#01];
"IPv6" -> [16#60, 16#02];
"Port" -> [16#60, 16#03];
"Porttype" -> [16#60, 16#04];
%% SDP
"v" -> [16#b0, 16#01];
"o" -> [16#b0, 16#02];
"s" -> [16#b0, 16#03];
"i" -> [16#b0, 16#04];
"u" -> [16#b0, 16#05];
"e" -> [16#b0, 16#06];
"p" -> [16#b0, 16#07];
"c" -> [16#b0, 16#08];
"b" -> [16#b0, 16#09];
"z" -> [16#b0, 16#0a];
"k" -> [16#b0, 16#0b];
"a" -> [16#b0, 16#0c];
"t" -> [16#b0, 16#0d];
"r" -> [16#b0, 16#0e];
"m" -> [16#b0, 16#0f]
end
end.
decode_native(Scope, [Type, Item]) ->
case Scope of
property ->
case Type of
16#60 ->
case Item of
16#01 -> "IPv4";
16#02 -> "IPv6";
16#03 -> "Port";
16#04 -> "Porttype"
end;
16#b0 ->
case Item of
16#01 -> "v";
16#02 -> "o";
16#03 -> "s";
16#04 -> "i";
16#05 -> "u";
16#06 -> "e";
16#07 -> "p";
16#08 -> "c";
16#09 -> "b";
16#0a -> "z";
16#0b -> "k";
16#0c -> "a";
16#0d -> "t";
16#0e -> "r";
16#0f -> "m"
end
end
end.
%% -------------------------------------------------------------------
% error(Reason) ->
% erlang:error(Reason).