introcue new MAP translation code
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6ef56d0a73
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% MAP masquerading application
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% (C) 2010-2011 by Harald Welte <laforge@gnumonks.org>
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% (C) 2010-2011 by On-Waves
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%
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% All Rights Reserved
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%
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% This program is free software; you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation; either version 2 of the License, or
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% (at your option) any later version.
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%
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% This program is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License along
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% with this program; if not, write to the Free Software Foundation, Inc.,
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% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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-module(map_masq).
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-author('Harald Welte <laforge@gnumonks.org>').
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%-compile(export_all).
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-export([mangle_map/1]).
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-define(PATCH_HLR_NUMBER, [1]).
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-define(PATCH_SGSN_NUMBER, [2]).
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-define(PATCH_SGSN_ADDRESS, [3]).
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-define(PATCH_VMSC_ADDRESS, [4]).
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-define(PATCH_GSMSCF_ADDRESS, [5]).
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-include_lib("osmo_map/include/map.hrl").
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mangle_msisdn(from_stp, _Opcode, AddrIn) ->
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{ok, IntPfx} = application:get_env(intern_pfx),
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mgw_nat:isup_party_internationalize(AddrIn, IntPfx).
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patch(#'SendRoutingInfoArg'{msisdn = Msisdn} = P) ->
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AddrInDec = map_codec:parse_addr_string(Msisdn),
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io:format("MSISDN IN = ~p~n", [AddrInDec]),
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AddrOutDec = mangle_msisdn(from_stp, 22, AddrInDec),
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io:format("MSISDN OUT = ~p~n", [AddrOutDec]),
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AddrOutBin = map_codec:encode_addr_string(AddrOutDec),
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P#'SendRoutingInfoArg'{msisdn = AddrOutBin};
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% patch a UpdateGprsLocationArg and replace SGSN number and SGSN address
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% !!! TESTING ONLY !!!
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patch(#'UpdateGprsLocationArg'{} = P) ->
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P#'UpdateGprsLocationArg'{'sgsn-Number'= ?PATCH_SGSN_NUMBER,
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'sgsn-Address' = ?PATCH_SGSN_ADDRESS};
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% Some other SGSN is sendingu us a GPRS location update. In the response,
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% we indicate teh HLR number, which we need to masquerade
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patch(#'UpdateGprsLocationRes'{} = P) ->
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P#'UpdateGprsLocationRes'{'hlr-Number' = ?PATCH_HLR_NUMBER};
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% Some other MSC/VLR is sendingu us a GSM location update. In the response,
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% we indicate teh HLR number, which we need to masquerade
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patch(#'UpdateLocationRes'{} = P) ->
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P#'UpdateLocationRes'{'hlr-Number' = ?PATCH_HLR_NUMBER};
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% HLR responds to VLR's MAP_RESTORE_REQ (i.e. it has lost information)
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patch(#'RestoreDataRes'{} = P) ->
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P#'RestoreDataRes'{'hlr-Number' = ?PATCH_HLR_NUMBER};
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% HLR sends subscriber data to VLR/SGSN, including CAMEL info
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patch(#'InsertSubscriberDataArg'{'vlrCamelSubscriptionInfo'=VlrCamel,
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'sgsn-CAMEL-SubscriptionInfo'=SgsnCamel} = Arg) ->
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Arg#'InsertSubscriberDataArg'{'vlrCamelSubscriptionInfo'=patch(VlrCamel),
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'sgsn-CAMEL-SubscriptionInfo'=patch(SgsnCamel)};
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% HLR sends subscriber data to gsmSCF
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patch(#'AnyTimeSubscriptionInterrogationRes'{'camel-SubscriptionInfo'=Csi} = P) ->
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P#'AnyTimeSubscriptionInterrogationRes'{'camel-SubscriptionInfo'=patch(Csi)};
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patch(asn1_NOVALUE) ->
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asn1_NOVALUE;
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% CAMEL related parsing
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% this is part of the InsertSubscriberData HLR -> VLR
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patch(#'VlrCamelSubscriptionInfo'{'o-CSI'=Ocsi, 'mo-sms-CSI'=MoSmsCsi,
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'mt-sms-CSI'=MtSmsCsi, 'ss-CSI'=SsCsi} = P) ->
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P#'VlrCamelSubscriptionInfo'{'o-CSI'=patch(Ocsi),
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'mo-sms-CSI'=patch(MoSmsCsi),
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'mt-sms-CSI'=patch(MtSmsCsi),
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'ss-CSI'=patch(SsCsi)};
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% this is part of the InsertSubscriberData HLR -> SGSN
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patch(#'SGSN-CAMEL-SubscriptionInfo'{'gprs-CSI'=GprsCsi,
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'mo-sms-CSI'=MoSmsCsi,
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'mt-sms-CSI'=MtSmsCsi} = P) ->
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P#'SGSN-CAMEL-SubscriptionInfo'{'gprs-CSI'=patch(GprsCsi),
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'mo-sms-CSI'=patch(MoSmsCsi),
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'mt-sms-CSI'=patch(MtSmsCsi)};
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% this is part of the Anytime Subscription Interrogation Result HLR->gsmSCF
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patch(#'CAMEL-SubscriptionInfo'{'o-CSI'=Ocsi,
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'd-CSI'=Dcsi,
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't-CSI'=Tcsi,
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'vt-CSI'=Vtcsi,
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%'tif-CSI'=Tifcsi,
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'gprs-CSI'=GprsCsi,
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'mo-sms-CSI'=MoSmsCsi,
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'ss-CSI'=SsCsi,
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'm-CSI'=Mcsi,
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'mt-sms-CSI'=MtSmsCsi,
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'mg-csi'=MgCsi,
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'o-IM-CSI'=OimCsi,
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'd-IM-CSI'=DimCsi,
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'vt-IM-CSI'=VtImCsi} = P) ->
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P#'CAMEL-SubscriptionInfo'{'o-CSI'=patch(Ocsi),
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'd-CSI'=patch(Dcsi),
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't-CSI'=patch(Tcsi),
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'vt-CSI'=patch(Vtcsi),
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'gprs-CSI'=patch(GprsCsi),
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'mo-sms-CSI'=patch(MoSmsCsi),
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'ss-CSI'=patch(SsCsi),
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'm-CSI'=patch(Mcsi),
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'mt-sms-CSI'=patch(MtSmsCsi),
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'mg-csi'=patch(MgCsi),
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'o-IM-CSI'=patch(OimCsi),
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'd-IM-CSI'=patch(DimCsi),
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'vt-IM-CSI'=patch(VtImCsi)};
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patch(#'T-CSI'{'t-BcsmCamelTDPDataList'=TdpList} = P) ->
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P#'T-CSI'{'t-BcsmCamelTDPDataList'=patch_tBcsmCamelTDPDataList(TdpList)};
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patch(#'M-CSI'{'gsmSCF-Address'=GsmScfAddr} = P) ->
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P#'M-CSI'{'gsmSCF-Address'=?PATCH_GSMSCF_ADDRESS};
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patch(#'MG-CSI'{'gsmSCF-Address'=GsmScfAddr} = P) ->
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P#'MG-CSI'{'gsmSCF-Address'=?PATCH_GSMSCF_ADDRESS};
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patch(#'O-CSI'{'o-BcsmCamelTDPDataList'=TdpList} = P) ->
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P#'O-CSI'{'o-BcsmCamelTDPDataList'=patch_oBcsmCamelTDPDataList(TdpList)};
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patch(#'D-CSI'{'dp-AnalysedInfoCriteriaList'=List} = P) ->
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P#'D-CSI'{'dp-AnalysedInfoCriteriaList'=patch_AnInfoCritList(List)};
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patch(#'SMS-CSI'{'sms-CAMEL-TDP-DataList'=TdpList} = P) ->
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P#'SMS-CSI'{'sms-CAMEL-TDP-DataList'=patch_SmsCamelTDPDataList(TdpList)};
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patch(#'SS-CSI'{'ss-CamelData'=Sscd} = P) ->
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P#'SS-CSI'{'ss-CamelData'=patch(Sscd)};
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patch(#'GPRS-CSI'{'gprs-CamelTDPDataList'=TdpList} = P) ->
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P#'GPRS-CSI'{'gprs-CamelTDPDataList'=patch_GprsCamelTDPDataList(TdpList)};
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patch(#'SS-CamelData'{'gsmSCF-Address'=GsmScfAddr} = P) ->
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P#'SS-CamelData'{'gsmSCF-Address'=?PATCH_GSMSCF_ADDRESS};
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patch(#'O-BcsmCamelTDPData'{'gsmSCF-Address'=GsmScfAddr} = P) ->
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P#'O-BcsmCamelTDPData'{'gsmSCF-Address'=?PATCH_GSMSCF_ADDRESS};
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patch(#'SMS-CAMEL-TDP-Data'{'gsmSCF-Address'=GsmScfAddr} = P) ->
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P#'SMS-CAMEL-TDP-Data'{'gsmSCF-Address'=?PATCH_GSMSCF_ADDRESS};
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patch(#'GPRS-CamelTDPData'{'gsmSCF-Address'=GsmScfAddr} = P) ->
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P#'GPRS-CamelTDPData'{'gsmSCF-Address'=?PATCH_GSMSCF_ADDRESS};
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patch(#'DP-AnalysedInfoCriterium'{'gsmSCF-Address'=GsmScfAddr} = P) ->
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P#'DP-AnalysedInfoCriterium'{'gsmSCF-Address'=?PATCH_GSMSCF_ADDRESS}.
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patch_oBcsmCamelTDPDataList(List) ->
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% we reverse the origianl list, as the tail recursive _acc function
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% will invert the order of components again
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patch_oBcsmCamelTDPDataList_acc(lists:reverse(List), []).
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patch_oBcsmCamelTDPDataList_acc([], NewList) -> NewList;
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patch_oBcsmCamelTDPDataList_acc([TdpData|Tail], NewList) ->
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NewTdpData = patch(TdpData#'O-BcsmCamelTDPData'{}),
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patch_oBcsmCamelTDPDataList_acc(Tail, [NewTdpData|NewList]).
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patch_tBcsmCamelTDPDataList(List) ->
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% we reverse the origianl list, as the tail recursive _acc function
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% will invert the order of components again
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patch_tBcsmCamelTDPDataList_acc(lists:reverse(List), []).
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patch_tBcsmCamelTDPDataList_acc([], NewList) -> NewList;
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patch_tBcsmCamelTDPDataList_acc([TdpData|Tail], NewList) ->
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NewTdpData = patch(TdpData#'T-BcsmCamelTDPData'{}),
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patch_tBcsmCamelTDPDataList_acc(Tail, [NewTdpData|NewList]).
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patch_AnInfoCritList(List) ->
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% we reverse the origianl list, as the tail recursive _acc function
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% will invert the order of components again
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patch_AnInfoCritList_acc(lists:reverse(List), []).
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patch_AnInfoCritList_acc([], NewList) -> NewList;
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patch_AnInfoCritList_acc([Crit|Tail], NewList) ->
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NewCrit = patch(Crit#'DP-AnalysedInfoCriterium'{}),
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patch_AnInfoCritList_acc(Tail, [NewCrit|NewList]).
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patch_GprsCamelTDPDataList(List) ->
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% we reverse the origianl list, as the tail recursive _acc function
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% will invert the order of components again
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patch_GprsCamelTDPDataList_acc(lists:reverse(List), []).
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patch_GprsCamelTDPDataList_acc([], NewList) -> NewList;
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patch_GprsCamelTDPDataList_acc([TdpData|Tail], NewList) ->
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NewTdpData = patch(TdpData#'GPRS-CamelTDPData'{}),
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patch_GprsCamelTDPDataList_acc(Tail, [NewTdpData|NewList]).
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patch_SmsCamelTDPDataList(List) ->
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% we reverse the origianl list, as the tail recursive _acc function
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% will invert the order of components again
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patch_SmsCamelTDPDataList_acc(lists:reverse(List), []).
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patch_SmsCamelTDPDataList_acc([], NewList) -> NewList;
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patch_SmsCamelTDPDataList_acc([TdpData|Tail], NewList) ->
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NewTdpData = patch(TdpData#'SMS-CAMEL-TDP-Data'{}),
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patch_GprsCamelTDPDataList_acc(Tail, [NewTdpData|NewList]).
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% process the Argument of a particular MAP invocation
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process_component_arg(OpCode, Arg) ->
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case Arg of
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asn1_NOVALUE -> Arg;
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_ -> patch(Arg)
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end.
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% recurse over all components
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handle_tcap_components(List) ->
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% we reverse the origianl list, as the tail recursive _acc function
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% will invert the order of components again
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handle_tcap_components_acc(lists:reverse(List), []).
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handle_tcap_components_acc([], NewComponents) -> NewComponents;
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handle_tcap_components_acc([Component|Tail], NewComponents) ->
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case Component of
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{basicROS, {Primitive, Body}} ->
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io:format("handle component ~p primitive ~n", [Component]),
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case Body of
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% BEGIN
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#'MapSpecificPDUs_begin_components_SEQOF_basicROS_invoke'{opcode={local, OpCode},
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argument=Arg} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_begin_components_SEQOF_basicROS_invoke'{argument=NewArg};
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#'MapSpecificPDUs_begin_components_SEQOF_basicROS_returnResult'{result=#'MapSpecificPDUs_begin_components_SEQOF_basicROS_returnResult_result'{opcode={local, OpCode}, result=Arg}} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_begin_components_SEQOF_basicROS_returnResult'{result=#'MapSpecificPDUs_begin_components_SEQOF_basicROS_returnResult_result'{result=NewArg}};
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#'MapSpecificPDUs_begin_components_SEQOF_returnResultNotLast'{result=#'MapSpecificPDUs_begin_components_SEQOF_returnResultNotLast_result'{opcode={local, OpCode}, result=Arg}} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_begin_components_SEQOF_returnResultNotLast'{result=#'MapSpecificPDUs_begin_components_SEQOF_returnResultNotLast_result'{result=NewArg}};
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% END
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#'MapSpecificPDUs_end_components_SEQOF_basicROS_invoke'{opcode={local, OpCode},
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argument=Arg} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_end_components_SEQOF_basicROS_invoke'{argument=NewArg};
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#'MapSpecificPDUs_end_components_SEQOF_basicROS_returnResult'{result=#'MapSpecificPDUs_end_components_SEQOF_basicROS_returnResult_result'{opcode={local, OpCode}, result=Arg}} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_end_components_SEQOF_basicROS_returnResult'{result=#'MapSpecificPDUs_end_components_SEQOF_basicROS_returnResult_result'{result=NewArg}};
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#'MapSpecificPDUs_end_components_SEQOF_returnResultNotLast'{result=#'MapSpecificPDUs_end_components_SEQOF_returnResultNotLast_result'{opcode={local, OpCode}, result=Arg}} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_end_components_SEQOF_returnResultNotLast'{result=#'MapSpecificPDUs_end_components_SEQOF_returnResultNotLast_result'{result=NewArg}};
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% CONTINUE
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#'MapSpecificPDUs_continue_components_SEQOF_basicROS_invoke'{opcode={local, OpCode},
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argument=Arg} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_continue_components_SEQOF_basicROS_invoke'{argument=NewArg};
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#'MapSpecificPDUs_continue_components_SEQOF_basicROS_returnResult'{result=#'MapSpecificPDUs_continue_components_SEQOF_basicROS_returnResult_result'{opcode={local, OpCode}, result=Arg}} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_end_components_SEQOF_basicROS_returnResult'{result=#'MapSpecificPDUs_end_components_SEQOF_basicROS_returnResult_result'{result=NewArg}};
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#'MapSpecificPDUs_continue_components_SEQOF_returnResultNotLast'{result=#'MapSpecificPDUs_continue_components_SEQOF_returnResultNotLast_result'{opcode={local, OpCode}, result=Arg}} ->
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NewArg = process_component_arg(OpCode, Arg),
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NewBody = Body#'MapSpecificPDUs_continue_components_SEQOF_returnResultNotLast'{result=#'MapSpecificPDUs_continue_components_SEQOF_returnResultNotLast_result'{result=NewArg}};
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_ ->
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NewBody = Body
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end,
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%NewBody = setelement(5, Body, NewArg)
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NewComponent = {basicROS, {Primitive, NewBody}};
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_ ->
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NewComponent = Component
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end,
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io:format("=> modified component ~p~n", [NewComponent]),
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handle_tcap_components_acc(Tail, [NewComponent|NewComponents]).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% Actual mangling of the decoded MAP messages
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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mangle_map({Type, TcapMsgDec}) ->
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case {Type, TcapMsgDec} of
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{'unidirectional', #'MapSpecificPDUs_unidirectional'{dialoguePortion=Dialg,
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components=Components}} ->
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NewComponents = handle_tcap_components(Components),
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NewTcapMsgDec = TcapMsgDec#'MapSpecificPDUs_unidirectional'{components=NewComponents};
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{'begin', #'MapSpecificPDUs_begin'{components=Components}} ->
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NewComponents = handle_tcap_components(Components),
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NewTcapMsgDec = TcapMsgDec#'MapSpecificPDUs_begin'{components=NewComponents};
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{'continue', #'MapSpecificPDUs_continue'{dialoguePortion=Dialg, components=Components}} ->
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NewComponents = handle_tcap_components(Components),
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NewTcapMsgDec = TcapMsgDec#'MapSpecificPDUs_continue'{components=NewComponents};
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{'end', #'MapSpecificPDUs_end'{components=Components}} ->
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NewComponents = handle_tcap_components(Components),
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NewTcapMsgDec = TcapMsgDec#'MapSpecificPDUs_end'{components=NewComponents};
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_ ->
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NewTcapMsgDec = TcapMsgDec
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end,
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io:format("new TcapMsgDec ~p~n", [NewTcapMsgDec]),
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{Type, NewTcapMsgDec}.
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